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[qemu.git] / linux-user / syscall.c
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31e31b8a
FB		 1/*
2 * Linux syscalls
5fafdf24 3 *
31e31b8a
FB		 4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
8167ee88 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31e31b8a 18 */
d5b3a9b6 19#define _ATFILE_SOURCE
d39594e9 20#include "qemu/osdep.h"
f348b6d1
VB		 21#include "qemu/cutils.h"
22#include "qemu/path.h"
9bdfa4d2 23#include "qemu/memfd.h"
dc5e9ac7 24#include "qemu/queue.h"
31e31b8a
FB		 25#include <elf.h>
26#include <endian.h>
c56dc774 27#include <grp.h>
d08d3bb8
TS		 28#include <sys/ipc.h>
29#include <sys/msg.h>
31e31b8a 30#include <sys/wait.h>
31e31b8a 31#include <sys/mount.h>
586b0bef
JS		 32#include <sys/file.h>
33#include <sys/fsuid.h>
34#include <sys/personality.h>
39b9aae1 35#include <sys/prctl.h>
31e31b8a 36#include <sys/resource.h>
31e31b8a 37#include <sys/swap.h>
e0eb210e 38#include <linux/capability.h>
31e31b8a 39#include <sched.h>
19f59bce 40#include <sys/timex.h>
31e31b8a 41#include <sys/socket.h>
6d5d5dde 42#include <linux/sockios.h>
607175e0 43#include <sys/un.h>
31e31b8a 44#include <sys/uio.h>
0839f11c 45#include <poll.h>
32f36bce 46#include <sys/times.h>
8853f86e 47#include <sys/shm.h>
fa294816 48#include <sys/sem.h>
56c8f68f 49#include <sys/statfs.h>
ebc05488 50#include <utime.h>
a5448a7d 51#include <sys/sysinfo.h>
e36800c9 52#include <sys/signalfd.h>
72f03900 53//#include <sys/user.h>
8853f86e 54#include <netinet/ip.h>
7854b056 55#include <netinet/tcp.h>
86fcd946 56#include <linux/wireless.h>
920394db 57#include <linux/icmp.h>
ee1ac3a1
HD		 58#include <linux/icmpv6.h>
59#include <linux/errqueue.h>
d6d6d6fe 60#include <linux/random.h>
d80a1905
RV		 61#ifdef CONFIG_TIMERFD
62#include <sys/timerfd.h>
63#endif
c2882b96
RV		 64#ifdef CONFIG_EVENTFD
65#include <sys/eventfd.h>
66#endif
3b6edd16
PM		 67#ifdef CONFIG_EPOLL
68#include <sys/epoll.h>
69#endif
a790ae38 70#ifdef CONFIG_ATTR
1de7afc9 71#include "qemu/xattr.h"
a790ae38 72#endif
a8fd1aba
PM		 73#ifdef CONFIG_SENDFILE
74#include <sys/sendfile.h>
75#endif
31e31b8a
FB		 76
77#define termios host_termios
78#define winsize host_winsize
79#define termio host_termio
04369ff2
FB		 80#define sgttyb host_sgttyb /* same as target */
81#define tchars host_tchars /* same as target */
82#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 83
84#include <linux/termios.h>
85#include <linux/unistd.h>
31e31b8a
FB		 86#include <linux/cdrom.h>
87#include <linux/hdreg.h>
88#include <linux/soundcard.h>
19b84f3c 89#include <linux/kd.h>
8fbd6b52 90#include <linux/mtio.h>
350d1779 91#include <linux/fs.h>
ab22b4dd 92#include <linux/fd.h>
dace20dc 93#if defined(CONFIG_FIEMAP)
285da2b9 94#include <linux/fiemap.h>
dace20dc 95#endif
f7680a55 96#include <linux/fb.h>
6c753a63
CT		 97#if defined(CONFIG_USBFS)
98#include <linux/usbdevice_fs.h>
a133367e 99#include <linux/usb/ch9.h>
6c753a63 100#endif
f7680a55 101#include <linux/vt.h>
56e904ec 102#include <linux/dm-ioctl.h>
c07ecc68 103#include <linux/reboot.h>
7ff7b666 104#include <linux/route.h>
f57d4192 105#include <linux/filter.h>
fff8c539 106#include <linux/blkpg.h>
a82ea939 107#include <netpacket/packet.h>
6c5b5645 108#include <linux/netlink.h>
f31dddd2 109#include <linux/if_alg.h>
d7e4036e 110#include "linux_loop.h"
18cb0088 111#include "uname.h"
31e31b8a 112
3ef693a0 113#include "qemu.h"
5ebdd774 114#include "qemu/guest-random.h"
51977e25 115#include "qapi/error.h"
f7e6a401 116#include "fd-trans.h"
31e31b8a 117
5ea2fc84
PM		 118#ifndef CLONE_IO
119#define CLONE_IO 0x80000000 /* Clone io context */
120#endif
121
122/* We can't directly call the host clone syscall, because this will
123 * badly confuse libc (breaking mutexes, for example). So we must
124 * divide clone flags into:
125 * * flag combinations that look like pthread_create()
126 * * flag combinations that look like fork()
127 * * flags we can implement within QEMU itself
128 * * flags we can't support and will return an error for
129 */
130/* For thread creation, all these flags must be present; for
131 * fork, none must be present.
132 */
133#define CLONE_THREAD_FLAGS \
134 (CLONE_VM | CLONE_FS | CLONE_FILES | \
135 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
136
137/* These flags are ignored:
138 * CLONE_DETACHED is now ignored by the kernel;
139 * CLONE_IO is just an optimisation hint to the I/O scheduler
140 */
141#define CLONE_IGNORED_FLAGS \
142 (CLONE_DETACHED | CLONE_IO)
143
144/* Flags for fork which we can implement within QEMU itself */
145#define CLONE_OPTIONAL_FORK_FLAGS \
146 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
147 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
148
149/* Flags for thread creation which we can implement within QEMU itself */
150#define CLONE_OPTIONAL_THREAD_FLAGS \
151 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
152 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
153
154#define CLONE_INVALID_FORK_FLAGS \
155 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
156
157#define CLONE_INVALID_THREAD_FLAGS \
158 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
159 CLONE_IGNORED_FLAGS))
160
161/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
162 * have almost all been allocated. We cannot support any of
163 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
164 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
165 * The checks against the invalid thread masks above will catch these.
166 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
167 */
30813cea 168
71a8f7fe
TB		 169/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
170 * once. This exercises the codepaths for restart.
171 */
172//#define DEBUG_ERESTARTSYS
31e31b8a 173
1a9353d2 174//#include <linux/msdos_fs.h>
6556a833
AJ		 175#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
176#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 177
70a194b9
FB		 178#undef _syscall0
179#undef _syscall1
180#undef _syscall2
181#undef _syscall3
182#undef _syscall4
183#undef _syscall5
83fcb515 184#undef _syscall6
70a194b9 185
83fcb515 186#define _syscall0(type,name) \
8fcd3692 187static type name (void) \
83fcb515
FB		 188{ \
189 return syscall(__NR_##name); \
190}
70a194b9 191
83fcb515 192#define _syscall1(type,name,type1,arg1) \
8fcd3692 193static type name (type1 arg1) \
83fcb515
FB		 194{ \
195 return syscall(__NR_##name, arg1); \
70a194b9
FB		 196}
197
83fcb515 198#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 199static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 200{ \
201 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 202}
203
83fcb515 204#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 205static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 206{ \
207 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 208}
209
83fcb515 210#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 211static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 212{ \
213 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 214}
215
83fcb515
FB		 216#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
217 type5,arg5) \
8fcd3692 218static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 219{ \
220 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 221}
222
83fcb515
FB		 223
224#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
225 type5,arg5,type6,arg6) \
8fcd3692
BS		 226static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
227 type6 arg6) \
83fcb515
FB		 228{ \
229 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 230}
83fcb515 231
70a194b9 232
31e31b8a 233#define __NR_sys_uname __NR_uname
72f03900 234#define __NR_sys_getcwd1 __NR_getcwd
72f03900 235#define __NR_sys_getdents __NR_getdents
dab2ed99 236#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 237#define __NR_sys_getpriority __NR_getpriority
66fb9763 238#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
cf8b8bfc 239#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
7494b0f9 240#define __NR_sys_syslog __NR_syslog
bd0c5661 241#define __NR_sys_futex __NR_futex
39b59763
AJ		 242#define __NR_sys_inotify_init __NR_inotify_init
243#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
244#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
efa92184 245#define __NR_sys_statx __NR_statx
31e31b8a 246
b1cef6d0 247#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
9af9eaaa
FB		 248#define __NR__llseek __NR_lseek
249#endif
250
a29e5ba2
JH		 251/* Newer kernel ports have llseek() instead of _llseek() */
252#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
253#define TARGET_NR__llseek TARGET_NR_llseek
254#endif
255
71ba74f6
DB		 256#define __NR_sys_gettid __NR_gettid
257_syscall0(int, sys_gettid)
2b3f64cb
PM		 258
259/* For the 64-bit guest on 32-bit host case we must emulate
260 * getdents using getdents64, because otherwise the host
261 * might hand us back more dirent records than we can fit
262 * into the guest buffer after structure format conversion.
263 * Otherwise we emulate getdents with getdents if the host has it.
264 */
265#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
266#define EMULATE_GETDENTS_WITH_GETDENTS
267#endif
268
269#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
3b3f24ad 270_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236 271#endif
2b3f64cb
PM		 272#if (defined(TARGET_NR_getdents) && \
273 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
3307e236 274 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 275_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
276#endif
d35b261c 277#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 278_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
279 loff_t *, res, uint, wh);
280#endif
c1a402a7 281_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
cf8b8bfc
MS		 282_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
283 siginfo_t *, uinfo)
3b3f24ad 284_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 285#ifdef __NR_exit_group
286_syscall1(int,exit_group,int,error_code)
287#endif
288#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
289_syscall1(int,set_tid_address,int *,tidptr)
290#endif
3b3f24ad
AJ		 291#if defined(TARGET_NR_futex) && defined(__NR_futex)
292_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
293 const struct timespec *,timeout,int *,uaddr2,int,val3)
294#endif
737de1d1
MF		 295#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
296_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
297 unsigned long *, user_mask_ptr);
298#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
299_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
300 unsigned long *, user_mask_ptr);
b827c3ed
ST		 301#define __NR_sys_getcpu __NR_getcpu
302_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
0f6b4d21
AG		 303_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
304 void *, arg);
e0eb210e
PM		 305_syscall2(int, capget, struct __user_cap_header_struct *, header,
306 struct __user_cap_data_struct *, data);
307_syscall2(int, capset, struct __user_cap_header_struct *, header,
308 struct __user_cap_data_struct *, data);
ab31cda3
PB		 309#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
310_syscall2(int, ioprio_get, int, which, int, who)
311#endif
312#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
313_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
314#endif
f894efd1
LV		 315#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
316_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
317#endif
3b3f24ad 318
2f14788c
LV		 319#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
320_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
321 unsigned long, idx1, unsigned long, idx2)
322#endif
323
efa92184
AR		 324/*
325 * It is assumed that struct statx is architecture independent.
326 */
327#if defined(TARGET_NR_statx) && defined(__NR_statx)
328_syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags,
329 unsigned int, mask, struct target_statx *, statxbuf)
330#endif
331
3b3f24ad
AJ		 332static bitmask_transtbl fcntl_flags_tbl[] = {
333 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
334 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
335 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
336 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
337 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
338 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
339 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
340 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 341 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 342 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
343 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
344 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
345 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 346#if defined(O_DIRECT)
347 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 348#endif
349#if defined(O_NOATIME)
350 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
351#endif
352#if defined(O_CLOEXEC)
353 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
354#endif
355#if defined(O_PATH)
356 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
5f9cee46
RV		 357#endif
358#if defined(O_TMPFILE)
359 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
afc8763f
RH		 360#endif
361 /* Don't terminate the list prematurely on 64-bit host+guest. */
362#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
363 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 364#endif
365 { 0, 0, 0, 0 }
366};
367
3b3f24ad
AJ		 368static int sys_getcwd1(char *buf, size_t size)
369{
370 if (getcwd(buf, size) == NULL) {
371 /* getcwd() sets errno */
372 return (-1);
373 }
aaf4ad39 374 return strlen(buf)+1;
3b3f24ad
AJ		 375}
376
1acae9f2 377#ifdef TARGET_NR_utimensat
700fa58e 378#if defined(__NR_utimensat)
1acae9f2 379#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 380_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
381 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 382#else
383static int sys_utimensat(int dirfd, const char *pathname,
384 const struct timespec times[2], int flags)
385{
386 errno = ENOSYS;
387 return -1;
388}
9007f0ef 389#endif
1acae9f2 390#endif /* TARGET_NR_utimensat */
3b3f24ad 391
95d0307c
AS		 392#ifdef TARGET_NR_renameat2
393#if defined(__NR_renameat2)
394#define __NR_sys_renameat2 __NR_renameat2
395_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
396 const char *, new, unsigned int, flags)
397#else
398static int sys_renameat2(int oldfd, const char *old,
399 int newfd, const char *new, int flags)
400{
401 if (flags == 0) {
402 return renameat(oldfd, old, newfd, new);
403 }
404 errno = ENOSYS;
405 return -1;
406}
407#endif
408#endif /* TARGET_NR_renameat2 */
409
3b3f24ad 410#ifdef CONFIG_INOTIFY
8690e420 411#include <sys/inotify.h>
3b3f24ad 412
39b59763 413#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 414static int sys_inotify_init(void)
415{
416 return (inotify_init());
417}
39b59763
AJ		 418#endif
419#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 420static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
421{
422 return (inotify_add_watch(fd, pathname, mask));
423}
39b59763
AJ		 424#endif
425#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 426static int sys_inotify_rm_watch(int fd, int32_t wd)
427{
8690e420 428 return (inotify_rm_watch(fd, wd));
3b3f24ad 429}
bd0c5661 430#endif
c05c7a73
RV		 431#ifdef CONFIG_INOTIFY1
432#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
433static int sys_inotify_init1(int flags)
434{
435 return (inotify_init1(flags));
436}
437#endif
438#endif
3b3f24ad
AJ		 439#else
440/* Userspace can usually survive runtime without inotify */
441#undef TARGET_NR_inotify_init
c05c7a73 442#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 443#undef TARGET_NR_inotify_add_watch
444#undef TARGET_NR_inotify_rm_watch
445#endif /* CONFIG_INOTIFY */
446
163a05a8
PM		 447#if defined(TARGET_NR_prlimit64)
448#ifndef __NR_prlimit64
449# define __NR_prlimit64 -1
450#endif
451#define __NR_sys_prlimit64 __NR_prlimit64
452/* The glibc rlimit structure may not be that used by the underlying syscall */
453struct host_rlimit64 {
454 uint64_t rlim_cur;
455 uint64_t rlim_max;
456};
457_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
458 const struct host_rlimit64 *, new_limit,
459 struct host_rlimit64 *, old_limit)
460#endif
461
f4f1e10a
ECL		 462
463#if defined(TARGET_NR_timer_create)
464/* Maxiumum of 32 active POSIX timers allowed at any one time. */
465static timer_t g_posix_timers[32] = { 0, } ;
466
467static inline int next_free_host_timer(void)
468{
469 int k ;
470 /* FIXME: Does finding the next free slot require a lock? */
471 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
472 if (g_posix_timers[k] == 0) {
473 g_posix_timers[k] = (timer_t) 1;
474 return k;
475 }
476 }
477 return -1;
478}
479#endif
480
48e515d4 481/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
4a1def4e 482#ifdef TARGET_ARM
8bf8e9df
JC		 483static inline int regpairs_aligned(void *cpu_env, int num)
484{
48e515d4
RV		 485 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
486}
d7779acb 487#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
8bf8e9df 488static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
4a1def4e
AG		 489#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
490/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
491 * of registers which translates to the same as ARM/MIPS, because we start with
492 * r3 as arg1 */
8bf8e9df
JC		 493static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
494#elif defined(TARGET_SH4)
495/* SH4 doesn't align register pairs, except for p{read,write}64 */
496static inline int regpairs_aligned(void *cpu_env, int num)
497{
498 switch (num) {
499 case TARGET_NR_pread64:
500 case TARGET_NR_pwrite64:
501 return 1;
502
503 default:
504 return 0;
505 }
506}
ba7651fb
MF		 507#elif defined(TARGET_XTENSA)
508static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
48e515d4 509#else
8bf8e9df 510static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
48e515d4
RV		 511#endif
512
b92c47c1
TS		 513#define ERRNO_TABLE_SIZE 1200
514
515/* target_to_host_errno_table[] is initialized from
516 * host_to_target_errno_table[] in syscall_init(). */
517static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
518};
519
637947f1 520/*
fe8f096b 521 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 522 * minus the errnos that are not actually generic to all archs.
523 */
b92c47c1 524static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 525 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 526 [EIDRM] = TARGET_EIDRM,
527 [ECHRNG] = TARGET_ECHRNG,
528 [EL2NSYNC] = TARGET_EL2NSYNC,
529 [EL3HLT] = TARGET_EL3HLT,
530 [EL3RST] = TARGET_EL3RST,
531 [ELNRNG] = TARGET_ELNRNG,
532 [EUNATCH] = TARGET_EUNATCH,
533 [ENOCSI] = TARGET_ENOCSI,
534 [EL2HLT] = TARGET_EL2HLT,
535 [EDEADLK] = TARGET_EDEADLK,
536 [ENOLCK] = TARGET_ENOLCK,
537 [EBADE] = TARGET_EBADE,
538 [EBADR] = TARGET_EBADR,
539 [EXFULL] = TARGET_EXFULL,
540 [ENOANO] = TARGET_ENOANO,
541 [EBADRQC] = TARGET_EBADRQC,
542 [EBADSLT] = TARGET_EBADSLT,
543 [EBFONT] = TARGET_EBFONT,
544 [ENOSTR] = TARGET_ENOSTR,
545 [ENODATA] = TARGET_ENODATA,
546 [ETIME] = TARGET_ETIME,
547 [ENOSR] = TARGET_ENOSR,
548 [ENONET] = TARGET_ENONET,
549 [ENOPKG] = TARGET_ENOPKG,
550 [EREMOTE] = TARGET_EREMOTE,
551 [ENOLINK] = TARGET_ENOLINK,
552 [EADV] = TARGET_EADV,
553 [ESRMNT] = TARGET_ESRMNT,
554 [ECOMM] = TARGET_ECOMM,
555 [EPROTO] = TARGET_EPROTO,
556 [EDOTDOT] = TARGET_EDOTDOT,
557 [EMULTIHOP] = TARGET_EMULTIHOP,
558 [EBADMSG] = TARGET_EBADMSG,
559 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
560 [EOVERFLOW] = TARGET_EOVERFLOW,
561 [ENOTUNIQ] = TARGET_ENOTUNIQ,
562 [EBADFD] = TARGET_EBADFD,
563 [EREMCHG] = TARGET_EREMCHG,
564 [ELIBACC] = TARGET_ELIBACC,
565 [ELIBBAD] = TARGET_ELIBBAD,
566 [ELIBSCN] = TARGET_ELIBSCN,
567 [ELIBMAX] = TARGET_ELIBMAX,
568 [ELIBEXEC] = TARGET_ELIBEXEC,
569 [EILSEQ] = TARGET_EILSEQ,
570 [ENOSYS] = TARGET_ENOSYS,
571 [ELOOP] = TARGET_ELOOP,
572 [ERESTART] = TARGET_ERESTART,
573 [ESTRPIPE] = TARGET_ESTRPIPE,
574 [ENOTEMPTY] = TARGET_ENOTEMPTY,
575 [EUSERS] = TARGET_EUSERS,
576 [ENOTSOCK] = TARGET_ENOTSOCK,
577 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
578 [EMSGSIZE] = TARGET_EMSGSIZE,
579 [EPROTOTYPE] = TARGET_EPROTOTYPE,
580 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
581 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
582 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
583 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
584 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
585 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
586 [EADDRINUSE] = TARGET_EADDRINUSE,
587 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
588 [ENETDOWN] = TARGET_ENETDOWN,
589 [ENETUNREACH] = TARGET_ENETUNREACH,
590 [ENETRESET] = TARGET_ENETRESET,
591 [ECONNABORTED] = TARGET_ECONNABORTED,
592 [ECONNRESET] = TARGET_ECONNRESET,
593 [ENOBUFS] = TARGET_ENOBUFS,
594 [EISCONN] = TARGET_EISCONN,
595 [ENOTCONN] = TARGET_ENOTCONN,
596 [EUCLEAN] = TARGET_EUCLEAN,
597 [ENOTNAM] = TARGET_ENOTNAM,
598 [ENAVAIL] = TARGET_ENAVAIL,
599 [EISNAM] = TARGET_EISNAM,
600 [EREMOTEIO] = TARGET_EREMOTEIO,
0444a3b7 601 [EDQUOT] = TARGET_EDQUOT,
637947f1
TS		 602 [ESHUTDOWN] = TARGET_ESHUTDOWN,
603 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
604 [ETIMEDOUT] = TARGET_ETIMEDOUT,
605 [ECONNREFUSED] = TARGET_ECONNREFUSED,
606 [EHOSTDOWN] = TARGET_EHOSTDOWN,
607 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
608 [EALREADY] = TARGET_EALREADY,
609 [EINPROGRESS] = TARGET_EINPROGRESS,
610 [ESTALE] = TARGET_ESTALE,
611 [ECANCELED] = TARGET_ECANCELED,
612 [ENOMEDIUM] = TARGET_ENOMEDIUM,
613 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 614#ifdef ENOKEY
637947f1 615 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 616#endif
617#ifdef EKEYEXPIRED
637947f1 618 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 619#endif
620#ifdef EKEYREVOKED
637947f1 621 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 622#endif
623#ifdef EKEYREJECTED
637947f1 624 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 625#endif
626#ifdef EOWNERDEAD
637947f1 627 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 628#endif
629#ifdef ENOTRECOVERABLE
637947f1 630 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 631#endif
da39db63
AM		 632#ifdef ENOMSG
633 [ENOMSG] = TARGET_ENOMSG,
634#endif
fe8ed7d5
RH		 635#ifdef ERKFILL
636 [ERFKILL] = TARGET_ERFKILL,
637#endif
638#ifdef EHWPOISON
639 [EHWPOISON] = TARGET_EHWPOISON,
640#endif
b92c47c1 641};
637947f1
TS		 642
643static inline int host_to_target_errno(int err)
644{
2466119c
TB		 645 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
646 host_to_target_errno_table[err]) {
637947f1 647 return host_to_target_errno_table[err];
2466119c 648 }
637947f1
TS		 649 return err;
650}
651
b92c47c1
TS		 652static inline int target_to_host_errno(int err)
653{
2466119c
TB		 654 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
655 target_to_host_errno_table[err]) {
b92c47c1 656 return target_to_host_errno_table[err];
2466119c 657 }
b92c47c1
TS		 658 return err;
659}
660
992f48a0 661static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 662{
663 if (ret == -1)
637947f1 664 return -host_to_target_errno(errno);
31e31b8a
FB		 665 else
666 return ret;
667}
668
7dcdaeaf 669const char *target_strerror(int err)
b92c47c1 670{
da2a34f7
PM		 671 if (err == TARGET_ERESTARTSYS) {
672 return "To be restarted";
673 }
674 if (err == TARGET_QEMU_ESIGRETURN) {
675 return "Successful exit from sigreturn";
676 }
677
962b289e
AG		 678 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
679 return NULL;
680 }
b92c47c1
TS		 681 return strerror(target_to_host_errno(err));
682}
683
4d330cee
TB		 684#define safe_syscall0(type, name) \
685static type safe_##name(void) \
686{ \
687 return safe_syscall(__NR_##name); \
688}
689
690#define safe_syscall1(type, name, type1, arg1) \
691static type safe_##name(type1 arg1) \
692{ \
693 return safe_syscall(__NR_##name, arg1); \
694}
695
696#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
697static type safe_##name(type1 arg1, type2 arg2) \
698{ \
699 return safe_syscall(__NR_##name, arg1, arg2); \
700}
701
702#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
703static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
704{ \
705 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
706}
707
708#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
709 type4, arg4) \
710static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
711{ \
712 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
713}
714
715#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
716 type4, arg4, type5, arg5) \
717static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
718 type5 arg5) \
719{ \
720 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
721}
722
723#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
724 type4, arg4, type5, arg5, type6, arg6) \
725static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
726 type5 arg5, type6 arg6) \
727{ \
728 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
729}
730
50afd02b
TB		 731safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
732safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 733safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
734 int, flags, mode_t, mode)
4af80a37
TB		 735safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
736 struct rusage *, rusage)
737safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
738 int, options, struct rusage *, rusage)
ffdcbe22 739safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
6df9d38d
PM		 740safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
741 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
a6130237
PM		 742safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
743 struct timespec *, tsp, const sigset_t *, sigmask,
744 size_t, sigsetsize)
227f0214
PM		 745safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
746 int, maxevents, int, timeout, const sigset_t *, sigmask,
747 size_t, sigsetsize)
d509eeb1
PM		 748safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
749 const struct timespec *,timeout,int *,uaddr2,int,val3)
2fe4fba1 750safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 751safe_syscall2(int, kill, pid_t, pid, int, sig)
752safe_syscall2(int, tkill, int, tid, int, sig)
753safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
918c03ed
PM		 754safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
755safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
0f26386c
DJ		 756safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
757 unsigned long, pos_l, unsigned long, pos_h)
f8d00fba
DJ		 758safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
759 unsigned long, pos_l, unsigned long, pos_h)
2a3c7619
PM		 760safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
761 socklen_t, addrlen)
66687530
PM		 762safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
763 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
764safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
765 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
766safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
767safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
2a845989 768safe_syscall2(int, flock, int, fd, int, operation)
b3f82330
PM		 769safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
770 const struct timespec *, uts, size_t, sigsetsize)
ff6dc130
PM		 771safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
772 int, flags)
9e518226
PM		 773safe_syscall2(int, nanosleep, const struct timespec *, req,
774 struct timespec *, rem)
775#ifdef TARGET_NR_clock_nanosleep
776safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
777 const struct timespec *, req, struct timespec *, rem)
778#endif
524fa340 779#ifdef __NR_ipc
89f9fe44
PM		 780safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
781 void *, ptr, long, fifth)
86e63695
LV		 782#endif
783#ifdef __NR_msgsnd
784safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
785 int, flags)
86e63695
LV		 786#endif
787#ifdef __NR_msgrcv
788safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
789 long, msgtype, int, flags)
86e63695
LV		 790#endif
791#ifdef __NR_semtimedop
792safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
793 unsigned, nsops, const struct timespec *, timeout)
89f9fe44 794#endif
d40ecd66
PM		 795#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
796safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
797 size_t, len, unsigned, prio, const struct timespec *, timeout)
798safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
799 size_t, len, unsigned *, prio, const struct timespec *, timeout)
800#endif
49ca6f3e
PM		 801/* We do ioctl like this rather than via safe_syscall3 to preserve the
802 * "third argument might be integer or pointer or not present" behaviour of
803 * the libc function.
804 */
805#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
435da5e7
PM		 806/* Similarly for fcntl. Note that callers must always:
807 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
808 * use the flock64 struct rather than unsuffixed flock
809 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
810 */
811#ifdef __NR_fcntl64
812#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
813#else
814#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
815#endif
50afd02b 816
8289d112
PB		 817static inline int host_to_target_sock_type(int host_type)
818{
819 int target_type;
820
821 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
822 case SOCK_DGRAM:
823 target_type = TARGET_SOCK_DGRAM;
824 break;
825 case SOCK_STREAM:
826 target_type = TARGET_SOCK_STREAM;
827 break;
828 default:
829 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
830 break;
831 }
832
833#if defined(SOCK_CLOEXEC)
834 if (host_type & SOCK_CLOEXEC) {
835 target_type |= TARGET_SOCK_CLOEXEC;
836 }
837#endif
838
839#if defined(SOCK_NONBLOCK)
840 if (host_type & SOCK_NONBLOCK) {
841 target_type |= TARGET_SOCK_NONBLOCK;
842 }
843#endif
844
845 return target_type;
846}
847
992f48a0
BS		 848static abi_ulong target_brk;
849static abi_ulong target_original_brk;
4d1de87c 850static abi_ulong brk_page;
31e31b8a 851
992f48a0 852void target_set_brk(abi_ulong new_brk)
31e31b8a 853{
4c1de73d 854 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 855 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 856}
857
4d1de87c
CV		 858//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
859#define DEBUGF_BRK(message, args...)
860
0da46a6e 861/* do_brk() must return target values and target errnos. */
992f48a0 862abi_long do_brk(abi_ulong new_brk)
31e31b8a 863{
992f48a0 864 abi_long mapped_addr;
ef4330c2 865 abi_ulong new_alloc_size;
31e31b8a 866
3a0c6c4a 867 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 868
869 if (!new_brk) {
3a0c6c4a 870 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 871 return target_brk;
4d1de87c
CV		 872 }
873 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 874 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
875 target_brk);
7ab240ad 876 return target_brk;
4d1de87c 877 }
3b46e624 878
4d1de87c
CV		 879 /* If the new brk is less than the highest page reserved to the
880 * target heap allocation, set it and we're almost done... */
881 if (new_brk <= brk_page) {
882 /* Heap contents are initialized to zero, as for anonymous
883 * mapped pages. */
884 if (new_brk > target_brk) {
885 memset(g2h(target_brk), 0, new_brk - target_brk);
886 }
31e31b8a 887 target_brk = new_brk;
3a0c6c4a 888 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
72e21db7 889 return target_brk;
31e31b8a
FB		 890 }
891
00faf08c
PM		 892 /* We need to allocate more memory after the brk... Note that
893 * we don't use MAP_FIXED because that will map over the top of
894 * any existing mapping (like the one with the host libc or qemu
895 * itself); instead we treat "mapped but at wrong address" as
896 * a failure and unmap again.
897 */
4d1de87c 898 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 899 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 900 PROT_READ|PROT_WRITE,
00faf08c
PM		 901 MAP_ANON|MAP_PRIVATE, 0, 0));
902
903 if (mapped_addr == brk_page) {
70afc343
CV		 904 /* Heap contents are initialized to zero, as for anonymous
905 * mapped pages. Technically the new pages are already
906 * initialized to zero since they *are* anonymous mapped
907 * pages, however we have to take care with the contents that
908 * come from the remaining part of the previous page: it may
909 * contains garbage data due to a previous heap usage (grown
910 * then shrunken). */
911 memset(g2h(target_brk), 0, brk_page - target_brk);
912
00faf08c 913 target_brk = new_brk;
4d1de87c 914 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 915 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
916 target_brk);
00faf08c
PM		 917 return target_brk;
918 } else if (mapped_addr != -1) {
919 /* Mapped but at wrong address, meaning there wasn't actually
920 * enough space for this brk.
921 */
922 target_munmap(mapped_addr, new_alloc_size);
923 mapped_addr = -1;
3a0c6c4a 924 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 925 }
926 else {
3a0c6c4a 927 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 928 }
7ab240ad 929
7dd46c02
RH		 930#if defined(TARGET_ALPHA)
931 /* We (partially) emulate OSF/1 on Alpha, which requires we
932 return a proper errno, not an unchanged brk value. */
00faf08c 933 return -TARGET_ENOMEM;
7dd46c02 934#endif
00faf08c 935 /* For everything else, return the previous break. */
7ab240ad 936 return target_brk;
31e31b8a
FB		 937}
938
26edcf41
TS		 939static inline abi_long copy_from_user_fdset(fd_set *fds,
940 abi_ulong target_fds_addr,
941 int n)
31e31b8a 942{
26edcf41
TS		 943 int i, nw, j, k;
944 abi_ulong b, *target_fds;
945
b1b2db29 946 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 947 if (!(target_fds = lock_user(VERIFY_READ,
948 target_fds_addr,
949 sizeof(abi_ulong) * nw,
950 1)))
951 return -TARGET_EFAULT;
952
953 FD_ZERO(fds);
954 k = 0;
955 for (i = 0; i < nw; i++) {
956 /* grab the abi_ulong */
957 __get_user(b, &target_fds[i]);
958 for (j = 0; j < TARGET_ABI_BITS; j++) {
959 /* check the bit inside the abi_ulong */
960 if ((b >> j) & 1)
961 FD_SET(k, fds);
962 k++;
31e31b8a 963 }
31e31b8a 964 }
26edcf41
TS		 965
966 unlock_user(target_fds, target_fds_addr, 0);
967
968 return 0;
31e31b8a
FB		 969}
970
055e0906
MF		 971static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
972 abi_ulong target_fds_addr,
973 int n)
974{
975 if (target_fds_addr) {
976 if (copy_from_user_fdset(fds, target_fds_addr, n))
977 return -TARGET_EFAULT;
978 *fds_ptr = fds;
979 } else {
980 *fds_ptr = NULL;
981 }
982 return 0;
983}
984
26edcf41
TS		 985static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
986 const fd_set *fds,
987 int n)
31e31b8a 988{
31e31b8a 989 int i, nw, j, k;
992f48a0 990 abi_long v;
26edcf41 991 abi_ulong *target_fds;
31e31b8a 992
b1b2db29 993 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 994 if (!(target_fds = lock_user(VERIFY_WRITE,
995 target_fds_addr,
996 sizeof(abi_ulong) * nw,
997 0)))
998 return -TARGET_EFAULT;
999
1000 k = 0;
1001 for (i = 0; i < nw; i++) {
1002 v = 0;
1003 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 1004 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 1005 k++;
31e31b8a 1006 }
26edcf41 1007 __put_user(v, &target_fds[i]);
31e31b8a 1008 }
26edcf41
TS		 1009
1010 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1011
1012 return 0;
31e31b8a
FB		 1013}
1014
c596ed17
FB		 1015#if defined(__alpha__)
1016#define HOST_HZ 1024
1017#else
1018#define HOST_HZ 100
1019#endif
1020
992f48a0 1021static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 1022{
1023#if HOST_HZ == TARGET_HZ
1024 return ticks;
1025#else
1026 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1027#endif
1028}
1029
579a97f7
FB		 1030static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1031 const struct rusage *rusage)
b409186b 1032{
53a5960a
PB		 1033 struct target_rusage *target_rusage;
1034
579a97f7
FB		 1035 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1036 return -TARGET_EFAULT;
cbb21eed
MB		 1037 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1038 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1039 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1040 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1041 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1042 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1043 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1044 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1045 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1046 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1047 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1048 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1049 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1050 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1051 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1052 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1053 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1054 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 1055 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 1056
1057 return 0;
b409186b
FB		 1058}
1059
cbb21eed 1060static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 1061{
cbb21eed 1062 abi_ulong target_rlim_swap;
95b33b2f
WT		 1063 rlim_t result;
1064
cbb21eed
MB		 1065 target_rlim_swap = tswapal(target_rlim);
1066 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1067 return RLIM_INFINITY;
1068
1069 result = target_rlim_swap;
1070 if (target_rlim_swap != (rlim_t)result)
1071 return RLIM_INFINITY;
95b33b2f
WT		 1072
1073 return result;
81bbe906
TY		 1074}
1075
cbb21eed 1076static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 1077{
cbb21eed
MB		 1078 abi_ulong target_rlim_swap;
1079 abi_ulong result;
95b33b2f 1080
cbb21eed 1081 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 1082 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 1083 else
95b33b2f 1084 target_rlim_swap = rlim;
cbb21eed 1085 result = tswapal(target_rlim_swap);
95b33b2f
WT		 1086
1087 return result;
81bbe906
TY		 1088}
1089
e22b7015
WT		 1090static inline int target_to_host_resource(int code)
1091{
1092 switch (code) {
1093 case TARGET_RLIMIT_AS:
1094 return RLIMIT_AS;
1095 case TARGET_RLIMIT_CORE:
1096 return RLIMIT_CORE;
1097 case TARGET_RLIMIT_CPU:
1098 return RLIMIT_CPU;
1099 case TARGET_RLIMIT_DATA:
1100 return RLIMIT_DATA;
1101 case TARGET_RLIMIT_FSIZE:
1102 return RLIMIT_FSIZE;
1103 case TARGET_RLIMIT_LOCKS:
1104 return RLIMIT_LOCKS;
1105 case TARGET_RLIMIT_MEMLOCK:
1106 return RLIMIT_MEMLOCK;
1107 case TARGET_RLIMIT_MSGQUEUE:
1108 return RLIMIT_MSGQUEUE;
1109 case TARGET_RLIMIT_NICE:
1110 return RLIMIT_NICE;
1111 case TARGET_RLIMIT_NOFILE:
1112 return RLIMIT_NOFILE;
1113 case TARGET_RLIMIT_NPROC:
1114 return RLIMIT_NPROC;
1115 case TARGET_RLIMIT_RSS:
1116 return RLIMIT_RSS;
1117 case TARGET_RLIMIT_RTPRIO:
1118 return RLIMIT_RTPRIO;
1119 case TARGET_RLIMIT_SIGPENDING:
1120 return RLIMIT_SIGPENDING;
1121 case TARGET_RLIMIT_STACK:
1122 return RLIMIT_STACK;
1123 default:
1124 return code;
1125 }
1126}
1127
788f5ec4
TS		 1128static inline abi_long copy_from_user_timeval(struct timeval *tv,
1129 abi_ulong target_tv_addr)
31e31b8a 1130{
53a5960a
PB		 1131 struct target_timeval *target_tv;
1132
6d5d5dde 1133 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
579a97f7 1134 return -TARGET_EFAULT;
6d5d5dde 1135 }
788f5ec4
TS		 1136
1137 __get_user(tv->tv_sec, &target_tv->tv_sec);
1138 __get_user(tv->tv_usec, &target_tv->tv_usec);
1139
1140 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1141
1142 return 0;
31e31b8a
FB		 1143}
1144
788f5ec4
TS		 1145static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1146 const struct timeval *tv)
31e31b8a 1147{
53a5960a
PB		 1148 struct target_timeval *target_tv;
1149
6d5d5dde
DB		 1150 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
1151 return -TARGET_EFAULT;
1152 }
1153
1154 __put_user(tv->tv_sec, &target_tv->tv_sec);
1155 __put_user(tv->tv_usec, &target_tv->tv_usec);
1156
1157 unlock_user_struct(target_tv, target_tv_addr, 1);
1158
1159 return 0;
1160}
1161
1162static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr,
1163 const struct timeval *tv)
1164{
1165 struct target__kernel_sock_timeval *target_tv;
1166
1167 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
579a97f7 1168 return -TARGET_EFAULT;
6d5d5dde 1169 }
788f5ec4
TS		 1170
1171 __put_user(tv->tv_sec, &target_tv->tv_sec);
1172 __put_user(tv->tv_usec, &target_tv->tv_usec);
1173
1174 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1175
1176 return 0;
31e31b8a
FB		 1177}
1178
6d5d5dde
DB		 1179static inline abi_long target_to_host_timespec(struct timespec *host_ts,
1180 abi_ulong target_addr)
1181{
1182 struct target_timespec *target_ts;
1183
1184 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
1185 return -TARGET_EFAULT;
1186 }
1187 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
1188 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1189 unlock_user_struct(target_ts, target_addr, 0);
1190 return 0;
1191}
1192
1193static inline abi_long host_to_target_timespec(abi_ulong target_addr,
1194 struct timespec *host_ts)
1195{
1196 struct target_timespec *target_ts;
1197
1198 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
1199 return -TARGET_EFAULT;
1200 }
1201 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
1202 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1203 unlock_user_struct(target_ts, target_addr, 1);
1204 return 0;
1205}
1206
1207static inline abi_long host_to_target_timespec64(abi_ulong target_addr,
1208 struct timespec *host_ts)
1209{
1210 struct target__kernel_timespec *target_ts;
1211
1212 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
1213 return -TARGET_EFAULT;
1214 }
1215 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
1216 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
1217 unlock_user_struct(target_ts, target_addr, 1);
1218 return 0;
1219}
1220
ef4467e9
PB		 1221static inline abi_long copy_from_user_timezone(struct timezone *tz,
1222 abi_ulong target_tz_addr)
1223{
1224 struct target_timezone *target_tz;
1225
1226 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1227 return -TARGET_EFAULT;
1228 }
1229
1230 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1231 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1232
1233 unlock_user_struct(target_tz, target_tz_addr, 0);
1234
1235 return 0;
1236}
1237
8ec9cf89
NF		 1238#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1239#include <mqueue.h>
1240
24e1003a
AJ		 1241static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1242 abi_ulong target_mq_attr_addr)
1243{
1244 struct target_mq_attr *target_mq_attr;
1245
1246 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1247 target_mq_attr_addr, 1))
1248 return -TARGET_EFAULT;
1249
1250 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1251 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1252 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1253 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1254
1255 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1256
1257 return 0;
1258}
1259
1260static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1261 const struct mq_attr *attr)
1262{
1263 struct target_mq_attr *target_mq_attr;
1264
1265 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1266 target_mq_attr_addr, 0))
1267 return -TARGET_EFAULT;
1268
1269 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1270 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1271 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1272 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1273
1274 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1275
1276 return 0;
1277}
8ec9cf89 1278#endif
31e31b8a 1279
055e0906 1280#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1281/* do_select() must return target values and target errnos. */
992f48a0 1282static abi_long do_select(int n,
26edcf41
TS		 1283 abi_ulong rfd_addr, abi_ulong wfd_addr,
1284 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1285{
1286 fd_set rfds, wfds, efds;
1287 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1288 struct timeval tv;
1289 struct timespec ts, *ts_ptr;
992f48a0 1290 abi_long ret;
31e31b8a 1291
055e0906
MF		 1292 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1293 if (ret) {
1294 return ret;
53a5960a 1295 }
055e0906
MF		 1296 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1297 if (ret) {
1298 return ret;
53a5960a 1299 }
055e0906
MF		 1300 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1301 if (ret) {
1302 return ret;
53a5960a 1303 }
3b46e624 1304
26edcf41 1305 if (target_tv_addr) {
788f5ec4
TS		 1306 if (copy_from_user_timeval(&tv, target_tv_addr))
1307 return -TARGET_EFAULT;
6df9d38d
PM		 1308 ts.tv_sec = tv.tv_sec;
1309 ts.tv_nsec = tv.tv_usec * 1000;
1310 ts_ptr = &ts;
31e31b8a 1311 } else {
6df9d38d 1312 ts_ptr = NULL;
31e31b8a 1313 }
26edcf41 1314
6df9d38d
PM		 1315 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1316 ts_ptr, NULL));
53a5960a 1317
26edcf41
TS		 1318 if (!is_error(ret)) {
1319 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1320 return -TARGET_EFAULT;
1321 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1322 return -TARGET_EFAULT;
1323 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1324 return -TARGET_EFAULT;
31e31b8a 1325
6df9d38d
PM		 1326 if (target_tv_addr) {
1327 tv.tv_sec = ts.tv_sec;
1328 tv.tv_usec = ts.tv_nsec / 1000;
1329 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1330 return -TARGET_EFAULT;
1331 }
1332 }
31e31b8a 1333 }
579a97f7 1334
31e31b8a
FB		 1335 return ret;
1336}
5457dc9e
LV		 1337
1338#if defined(TARGET_WANT_OLD_SYS_SELECT)
1339static abi_long do_old_select(abi_ulong arg1)
1340{
1341 struct target_sel_arg_struct *sel;
1342 abi_ulong inp, outp, exp, tvp;
1343 long nsel;
1344
1345 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1346 return -TARGET_EFAULT;
1347 }
1348
1349 nsel = tswapal(sel->n);
1350 inp = tswapal(sel->inp);
1351 outp = tswapal(sel->outp);
1352 exp = tswapal(sel->exp);
1353 tvp = tswapal(sel->tvp);
1354
1355 unlock_user_struct(sel, arg1, 0);
1356
1357 return do_select(nsel, inp, outp, exp, tvp);
1358}
1359#endif
055e0906 1360#endif
31e31b8a 1361
099d6b0f
RV		 1362static abi_long do_pipe2(int host_pipe[], int flags)
1363{
1364#ifdef CONFIG_PIPE2
1365 return pipe2(host_pipe, flags);
1366#else
1367 return -ENOSYS;
1368#endif
1369}
1370
fb41a66e
RH		 1371static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1372 int flags, int is_pipe2)
099d6b0f
RV		 1373{
1374 int host_pipe[2];
1375 abi_long ret;
1376 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1377
1378 if (is_error(ret))
1379 return get_errno(ret);
fb41a66e
RH		 1380
1381 /* Several targets have special calling conventions for the original
1382 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1383 if (!is_pipe2) {
1384#if defined(TARGET_ALPHA)
1385 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1386 return host_pipe[0];
1387#elif defined(TARGET_MIPS)
1388 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1389 return host_pipe[0];
1390#elif defined(TARGET_SH4)
597c0212 1391 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1392 return host_pipe[0];
82f05b69
PM		 1393#elif defined(TARGET_SPARC)
1394 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1395 return host_pipe[0];
597c0212 1396#endif
fb41a66e
RH		 1397 }
1398
099d6b0f
RV		 1399 if (put_user_s32(host_pipe[0], pipedes)
1400 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1401 return -TARGET_EFAULT;
099d6b0f
RV		 1402 return get_errno(ret);
1403}
1404
b975b83b
LL		 1405static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1406 abi_ulong target_addr,
1407 socklen_t len)
1408{
1409 struct target_ip_mreqn *target_smreqn;
1410
1411 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1412 if (!target_smreqn)
1413 return -TARGET_EFAULT;
1414 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1415 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1416 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1417 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1418 unlock_user(target_smreqn, target_addr, 0);
1419
1420 return 0;
1421}
1422
7b36f782 1423static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1424 abi_ulong target_addr,
1425 socklen_t len)
7854b056 1426{
607175e0
AJ		 1427 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1428 sa_family_t sa_family;
53a5960a
PB		 1429 struct target_sockaddr *target_saddr;
1430
7b36f782
LV		 1431 if (fd_trans_target_to_host_addr(fd)) {
1432 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1433 }
1434
579a97f7
FB		 1435 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1436 if (!target_saddr)
1437 return -TARGET_EFAULT;
607175e0
AJ		 1438
1439 sa_family = tswap16(target_saddr->sa_family);
1440
1441 /* Oops. The caller might send a incomplete sun_path; sun_path
1442 * must be terminated by \0 (see the manual page), but
1443 * unfortunately it is quite common to specify sockaddr_un
1444 * length as "strlen(x->sun_path)" while it should be
1445 * "strlen(...) + 1". We'll fix that here if needed.
1446 * Linux kernel has a similar feature.
1447 */
1448
1449 if (sa_family == AF_UNIX) {
1450 if (len < unix_maxlen && len > 0) {
1451 char *cp = (char*)target_saddr;
1452
1453 if ( cp[len-1] && !cp[len] )
1454 len++;
1455 }
1456 if (len > unix_maxlen)
1457 len = unix_maxlen;
1458 }
1459
53a5960a 1460 memcpy(addr, target_saddr, len);
607175e0 1461 addr->sa_family = sa_family;
6c5b5645
LV		 1462 if (sa_family == AF_NETLINK) {
1463 struct sockaddr_nl *nladdr;
1464
1465 nladdr = (struct sockaddr_nl *)addr;
1466 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1467 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1468 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1469 struct target_sockaddr_ll *lladdr;
1470
1471 lladdr = (struct target_sockaddr_ll *)addr;
1472 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1473 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1474 }
53a5960a 1475 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1476
1477 return 0;
7854b056
FB		 1478}
1479
579a97f7
FB		 1480static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1481 struct sockaddr *addr,
1482 socklen_t len)
7854b056 1483{
53a5960a
PB		 1484 struct target_sockaddr *target_saddr;
1485
a1e22192
PM		 1486 if (len == 0) {
1487 return 0;
1488 }
6860710c 1489 assert(addr);
a1e22192 1490
579a97f7
FB		 1491 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1492 if (!target_saddr)
1493 return -TARGET_EFAULT;
53a5960a 1494 memcpy(target_saddr, addr, len);
a1e22192
PM		 1495 if (len >= offsetof(struct target_sockaddr, sa_family) +
1496 sizeof(target_saddr->sa_family)) {
1497 target_saddr->sa_family = tswap16(addr->sa_family);
1498 }
1499 if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
6c5b5645
LV		 1500 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1501 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1502 target_nl->nl_groups = tswap32(target_nl->nl_groups);
a82ea939
LV		 1503 } else if (addr->sa_family == AF_PACKET) {
1504 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1505 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1506 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
ee1ac3a1
HD		 1507 } else if (addr->sa_family == AF_INET6 &&
1508 len >= sizeof(struct target_sockaddr_in6)) {
1509 struct target_sockaddr_in6 *target_in6 =
1510 (struct target_sockaddr_in6 *)target_saddr;
1511 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
6c5b5645 1512 }
53a5960a 1513 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1514
1515 return 0;
7854b056
FB		 1516}
1517
5a4a898d
FB		 1518static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1519 struct target_msghdr *target_msgh)
7854b056
FB		 1520{
1521 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1522 abi_long msg_controllen;
1523 abi_ulong target_cmsg_addr;
ee104587 1524 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1525 socklen_t space = 0;
5a4a898d 1526
cbb21eed 1527 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1528 if (msg_controllen < sizeof (struct target_cmsghdr))
1529 goto the_end;
cbb21eed 1530 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1531 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1532 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1533 if (!target_cmsg)
1534 return -TARGET_EFAULT;
7854b056
FB		 1535
1536 while (cmsg && target_cmsg) {
1537 void *data = CMSG_DATA(cmsg);
1538 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1539
cbb21eed 1540 int len = tswapal(target_cmsg->cmsg_len)
ad762b99 1541 - sizeof(struct target_cmsghdr);
7854b056
FB		 1542
1543 space += CMSG_SPACE(len);
1544 if (space > msgh->msg_controllen) {
1545 space -= CMSG_SPACE(len);
c2aeb258
PM		 1546 /* This is a QEMU bug, since we allocated the payload
1547 * area ourselves (unlike overflow in host-to-target
1548 * conversion, which is just the guest giving us a buffer
1549 * that's too small). It can't happen for the payload types
1550 * we currently support; if it becomes an issue in future
1551 * we would need to improve our allocation strategy to
1552 * something more intelligent than "twice the size of the
1553 * target buffer we're reading from".
1554 */
31febb71 1555 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1556 break;
1557 }
1558
dbf4f796
PJ		 1559 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1560 cmsg->cmsg_level = SOL_SOCKET;
1561 } else {
1562 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1563 }
7854b056
FB		 1564 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1565 cmsg->cmsg_len = CMSG_LEN(len);
1566
30b8b68e 1567 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1568 int *fd = (int *)data;
1569 int *target_fd = (int *)target_data;
1570 int i, numfds = len / sizeof(int);
1571
876e23cb
PM		 1572 for (i = 0; i < numfds; i++) {
1573 __get_user(fd[i], target_fd + i);
1574 }
30b8b68e
AS		 1575 } else if (cmsg->cmsg_level == SOL_SOCKET
1576 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1577 struct ucred *cred = (struct ucred *)data;
1578 struct target_ucred *target_cred =
1579 (struct target_ucred *)target_data;
1580
876e23cb
PM		 1581 __get_user(cred->pid, &target_cred->pid);
1582 __get_user(cred->uid, &target_cred->uid);
1583 __get_user(cred->gid, &target_cred->gid);
30b8b68e
AS		 1584 } else {
1585 gemu_log("Unsupported ancillary data: %d/%d\n",
1586 cmsg->cmsg_level, cmsg->cmsg_type);
1587 memcpy(data, target_data, len);
7854b056
FB		 1588 }
1589
1590 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1591 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1592 target_cmsg_start);
7854b056 1593 }
5a4a898d
FB		 1594 unlock_user(target_cmsg, target_cmsg_addr, 0);
1595 the_end:
7854b056 1596 msgh->msg_controllen = space;
5a4a898d 1597 return 0;
7854b056
FB		 1598}
1599
5a4a898d
FB		 1600static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1601 struct msghdr *msgh)
7854b056
FB		 1602{
1603 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1604 abi_long msg_controllen;
1605 abi_ulong target_cmsg_addr;
ee104587 1606 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1607 socklen_t space = 0;
1608
cbb21eed 1609 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1610 if (msg_controllen < sizeof (struct target_cmsghdr))
1611 goto the_end;
cbb21eed 1612 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1613 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1614 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1615 if (!target_cmsg)
1616 return -TARGET_EFAULT;
1617
7854b056
FB		 1618 while (cmsg && target_cmsg) {
1619 void *data = CMSG_DATA(cmsg);
1620 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1621
ad762b99 1622 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
c2aeb258 1623 int tgt_len, tgt_space;
7854b056 1624
c2aeb258
PM		 1625 /* We never copy a half-header but may copy half-data;
1626 * this is Linux's behaviour in put_cmsg(). Note that
1627 * truncation here is a guest problem (which we report
1628 * to the guest via the CTRUNC bit), unlike truncation
1629 * in target_to_host_cmsg, which is a QEMU bug.
1630 */
7174970a 1631 if (msg_controllen < sizeof(struct target_cmsghdr)) {
c2aeb258 1632 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1633 break;
1634 }
1635
dbf4f796
PJ		 1636 if (cmsg->cmsg_level == SOL_SOCKET) {
1637 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1638 } else {
1639 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1640 }
7854b056 1641 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1642
c2aeb258
PM		 1643 /* Payload types which need a different size of payload on
1644 * the target must adjust tgt_len here.
1645 */
309786cf 1646 tgt_len = len;
c2aeb258
PM		 1647 switch (cmsg->cmsg_level) {
1648 case SOL_SOCKET:
1649 switch (cmsg->cmsg_type) {
1650 case SO_TIMESTAMP:
1651 tgt_len = sizeof(struct target_timeval);
1652 break;
1653 default:
1654 break;
1655 }
309786cf 1656 break;
c2aeb258
PM		 1657 default:
1658 break;
1659 }
1660
7174970a 1661 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
c2aeb258 1662 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7174970a 1663 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
c2aeb258
PM		 1664 }
1665
1666 /* We must now copy-and-convert len bytes of payload
1667 * into tgt_len bytes of destination space. Bear in mind
1668 * that in both source and destination we may be dealing
1669 * with a truncated value!
1670 */
52b65494
HD		 1671 switch (cmsg->cmsg_level) {
1672 case SOL_SOCKET:
1673 switch (cmsg->cmsg_type) {
1674 case SCM_RIGHTS:
1675 {
1676 int *fd = (int *)data;
1677 int *target_fd = (int *)target_data;
c2aeb258 1678 int i, numfds = tgt_len / sizeof(int);
52b65494 1679
876e23cb
PM		 1680 for (i = 0; i < numfds; i++) {
1681 __put_user(fd[i], target_fd + i);
1682 }
52b65494
HD		 1683 break;
1684 }
1685 case SO_TIMESTAMP:
1686 {
1687 struct timeval *tv = (struct timeval *)data;
1688 struct target_timeval *target_tv =
1689 (struct target_timeval *)target_data;
1690
c2aeb258
PM		 1691 if (len != sizeof(struct timeval) ||
1692 tgt_len != sizeof(struct target_timeval)) {
52b65494 1693 goto unimplemented;
c2aeb258 1694 }
52b65494
HD		 1695
1696 /* copy struct timeval to target */
876e23cb
PM		 1697 __put_user(tv->tv_sec, &target_tv->tv_sec);
1698 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 1699 break;
1700 }
4bc29756
HD		 1701 case SCM_CREDENTIALS:
1702 {
1703 struct ucred *cred = (struct ucred *)data;
1704 struct target_ucred *target_cred =
1705 (struct target_ucred *)target_data;
1706
1707 __put_user(cred->pid, &target_cred->pid);
1708 __put_user(cred->uid, &target_cred->uid);
1709 __put_user(cred->gid, &target_cred->gid);
1710 break;
1711 }
52b65494
HD		 1712 default:
1713 goto unimplemented;
1714 }
1715 break;
7854b056 1716
ee1ac3a1
HD		 1717 case SOL_IP:
1718 switch (cmsg->cmsg_type) {
1719 case IP_TTL:
1720 {
1721 uint32_t *v = (uint32_t *)data;
1722 uint32_t *t_int = (uint32_t *)target_data;
1723
7174970a
PM		 1724 if (len != sizeof(uint32_t) ||
1725 tgt_len != sizeof(uint32_t)) {
1726 goto unimplemented;
1727 }
ee1ac3a1
HD		 1728 __put_user(*v, t_int);
1729 break;
1730 }
1731 case IP_RECVERR:
1732 {
1733 struct errhdr_t {
1734 struct sock_extended_err ee;
1735 struct sockaddr_in offender;
1736 };
1737 struct errhdr_t *errh = (struct errhdr_t *)data;
1738 struct errhdr_t *target_errh =
1739 (struct errhdr_t *)target_data;
1740
7174970a
PM		 1741 if (len != sizeof(struct errhdr_t) ||
1742 tgt_len != sizeof(struct errhdr_t)) {
1743 goto unimplemented;
1744 }
ee1ac3a1
HD		 1745 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1746 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1747 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1748 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1749 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1750 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1751 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1752 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1753 (void *) &errh->offender, sizeof(errh->offender));
1754 break;
1755 }
1756 default:
1757 goto unimplemented;
1758 }
1759 break;
1760
1761 case SOL_IPV6:
1762 switch (cmsg->cmsg_type) {
1763 case IPV6_HOPLIMIT:
1764 {
1765 uint32_t *v = (uint32_t *)data;
1766 uint32_t *t_int = (uint32_t *)target_data;
1767
7174970a
PM		 1768 if (len != sizeof(uint32_t) ||
1769 tgt_len != sizeof(uint32_t)) {
1770 goto unimplemented;
1771 }
ee1ac3a1
HD		 1772 __put_user(*v, t_int);
1773 break;
1774 }
1775 case IPV6_RECVERR:
1776 {
1777 struct errhdr6_t {
1778 struct sock_extended_err ee;
1779 struct sockaddr_in6 offender;
1780 };
1781 struct errhdr6_t *errh = (struct errhdr6_t *)data;
1782 struct errhdr6_t *target_errh =
1783 (struct errhdr6_t *)target_data;
1784
7174970a
PM		 1785 if (len != sizeof(struct errhdr6_t) ||
1786 tgt_len != sizeof(struct errhdr6_t)) {
1787 goto unimplemented;
1788 }
ee1ac3a1
HD		 1789 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1790 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1791 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1792 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1793 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1794 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1795 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1796 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1797 (void *) &errh->offender, sizeof(errh->offender));
1798 break;
1799 }
1800 default:
1801 goto unimplemented;
1802 }
1803 break;
1804
52b65494
HD		 1805 default:
1806 unimplemented:
aebf5bc7
JH		 1807 gemu_log("Unsupported ancillary data: %d/%d\n",
1808 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 1809 memcpy(target_data, data, MIN(len, tgt_len));
1810 if (tgt_len > len) {
1811 memset(target_data + len, 0, tgt_len - len);
1812 }
7854b056
FB		 1813 }
1814
7174970a
PM		 1815 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
1816 tgt_space = TARGET_CMSG_SPACE(tgt_len);
c2aeb258
PM		 1817 if (msg_controllen < tgt_space) {
1818 tgt_space = msg_controllen;
1819 }
1820 msg_controllen -= tgt_space;
1821 space += tgt_space;
7854b056 1822 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1823 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1824 target_cmsg_start);
7854b056 1825 }
5a4a898d
FB		 1826 unlock_user(target_cmsg, target_cmsg_addr, space);
1827 the_end:
cbb21eed 1828 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1829 return 0;
7854b056
FB		 1830}
1831
0da46a6e 1832/* do_setsockopt() Must return target values and target errnos. */
992f48a0 1833static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 1834 abi_ulong optval_addr, socklen_t optlen)
7854b056 1835{
992f48a0 1836 abi_long ret;
32407103 1837 int val;
b975b83b 1838 struct ip_mreqn *ip_mreq;
6e3cb58f 1839 struct ip_mreq_source *ip_mreq_source;
3b46e624 1840
8853f86e
FB		 1841 switch(level) {
1842 case SOL_TCP:
7854b056 1843 /* TCP options all take an 'int' value. */
7854b056 1844 if (optlen < sizeof(uint32_t))
0da46a6e 1845 return -TARGET_EINVAL;
3b46e624 1846
2f619698
FB		 1847 if (get_user_u32(val, optval_addr))
1848 return -TARGET_EFAULT;
8853f86e
FB		 1849 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1850 break;
1851 case SOL_IP:
1852 switch(optname) {
2efbe911
FB		 1853 case IP_TOS:
1854 case IP_TTL:
8853f86e 1855 case IP_HDRINCL:
2efbe911
FB		 1856 case IP_ROUTER_ALERT:
1857 case IP_RECVOPTS:
1858 case IP_RETOPTS:
1859 case IP_PKTINFO:
1860 case IP_MTU_DISCOVER:
1861 case IP_RECVERR:
ee1ac3a1 1862 case IP_RECVTTL:
2efbe911
FB		 1863 case IP_RECVTOS:
1864#ifdef IP_FREEBIND
1865 case IP_FREEBIND:
1866#endif
1867 case IP_MULTICAST_TTL:
1868 case IP_MULTICAST_LOOP:
8853f86e
FB		 1869 val = 0;
1870 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 1871 if (get_user_u32(val, optval_addr))
1872 return -TARGET_EFAULT;
8853f86e 1873 } else if (optlen >= 1) {
2f619698
FB		 1874 if (get_user_u8(val, optval_addr))
1875 return -TARGET_EFAULT;
8853f86e
FB		 1876 }
1877 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1878 break;
b975b83b
LL		 1879 case IP_ADD_MEMBERSHIP:
1880 case IP_DROP_MEMBERSHIP:
1881 if (optlen < sizeof (struct target_ip_mreq) ||
1882 optlen > sizeof (struct target_ip_mreqn))
1883 return -TARGET_EINVAL;
1884
1885 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1886 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1887 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1888 break;
1889
6e3cb58f
LL		 1890 case IP_BLOCK_SOURCE:
1891 case IP_UNBLOCK_SOURCE:
1892 case IP_ADD_SOURCE_MEMBERSHIP:
1893 case IP_DROP_SOURCE_MEMBERSHIP:
1894 if (optlen != sizeof (struct target_ip_mreq_source))
1895 return -TARGET_EINVAL;
1896
1897 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1898 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1899 unlock_user (ip_mreq_source, optval_addr, 0);
1900 break;
1901
920394db
JH		 1902 default:
1903 goto unimplemented;
1904 }
1905 break;
0d78b3b5
LV		 1906 case SOL_IPV6:
1907 switch (optname) {
1908 case IPV6_MTU_DISCOVER:
1909 case IPV6_MTU:
1910 case IPV6_V6ONLY:
1911 case IPV6_RECVPKTINFO:
ee1ac3a1 1912 case IPV6_UNICAST_HOPS:
21749c4c
LV		 1913 case IPV6_MULTICAST_HOPS:
1914 case IPV6_MULTICAST_LOOP:
ee1ac3a1
HD		 1915 case IPV6_RECVERR:
1916 case IPV6_RECVHOPLIMIT:
1917 case IPV6_2292HOPLIMIT:
1918 case IPV6_CHECKSUM:
b9cce6d7
HD		 1919 case IPV6_ADDRFORM:
1920 case IPV6_2292PKTINFO:
1921 case IPV6_RECVTCLASS:
1922 case IPV6_RECVRTHDR:
1923 case IPV6_2292RTHDR:
1924 case IPV6_RECVHOPOPTS:
1925 case IPV6_2292HOPOPTS:
1926 case IPV6_RECVDSTOPTS:
1927 case IPV6_2292DSTOPTS:
1928 case IPV6_TCLASS:
1929#ifdef IPV6_RECVPATHMTU
1930 case IPV6_RECVPATHMTU:
1931#endif
1932#ifdef IPV6_TRANSPARENT
1933 case IPV6_TRANSPARENT:
1934#endif
1935#ifdef IPV6_FREEBIND
1936 case IPV6_FREEBIND:
1937#endif
1938#ifdef IPV6_RECVORIGDSTADDR
1939 case IPV6_RECVORIGDSTADDR:
1940#endif
0d78b3b5
LV		 1941 val = 0;
1942 if (optlen < sizeof(uint32_t)) {
1943 return -TARGET_EINVAL;
1944 }
1945 if (get_user_u32(val, optval_addr)) {
1946 return -TARGET_EFAULT;
1947 }
1948 ret = get_errno(setsockopt(sockfd, level, optname,
1949 &val, sizeof(val)));
1950 break;
ee1ac3a1
HD		 1951 case IPV6_PKTINFO:
1952 {
1953 struct in6_pktinfo pki;
1954
1955 if (optlen < sizeof(pki)) {
1956 return -TARGET_EINVAL;
1957 }
1958
1959 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
1960 return -TARGET_EFAULT;
1961 }
1962
1963 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
1964
1965 ret = get_errno(setsockopt(sockfd, level, optname,
1966 &pki, sizeof(pki)));
1967 break;
1968 }
22bf4ee9
NC		 1969 case IPV6_ADD_MEMBERSHIP:
1970 case IPV6_DROP_MEMBERSHIP:
1971 {
1972 struct ipv6_mreq ipv6mreq;
1973
1974 if (optlen < sizeof(ipv6mreq)) {
1975 return -TARGET_EINVAL;
1976 }
1977
1978 if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) {
1979 return -TARGET_EFAULT;
1980 }
1981
1982 ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface);
1983
1984 ret = get_errno(setsockopt(sockfd, level, optname,
1985 &ipv6mreq, sizeof(ipv6mreq)));
1986 break;
1987 }
ee1ac3a1
HD		 1988 default:
1989 goto unimplemented;
1990 }
1991 break;
1992 case SOL_ICMPV6:
1993 switch (optname) {
1994 case ICMPV6_FILTER:
1995 {
1996 struct icmp6_filter icmp6f;
1997
1998 if (optlen > sizeof(icmp6f)) {
1999 optlen = sizeof(icmp6f);
2000 }
2001
2002 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
2003 return -TARGET_EFAULT;
2004 }
2005
2006 for (val = 0; val < 8; val++) {
2007 icmp6f.data[val] = tswap32(icmp6f.data[val]);
2008 }
2009
2010 ret = get_errno(setsockopt(sockfd, level, optname,
2011 &icmp6f, optlen));
2012 break;
2013 }
0d78b3b5
LV		 2014 default:
2015 goto unimplemented;
2016 }
2017 break;
920394db
JH		 2018 case SOL_RAW:
2019 switch (optname) {
2020 case ICMP_FILTER:
ee1ac3a1
HD		 2021 case IPV6_CHECKSUM:
2022 /* those take an u32 value */
920394db
JH		 2023 if (optlen < sizeof(uint32_t)) {
2024 return -TARGET_EINVAL;
2025 }
2026
2027 if (get_user_u32(val, optval_addr)) {
2028 return -TARGET_EFAULT;
2029 }
2030 ret = get_errno(setsockopt(sockfd, level, optname,
2031 &val, sizeof(val)));
2032 break;
2033
8853f86e
FB		 2034 default:
2035 goto unimplemented;
2036 }
2037 break;
f31dddd2
YS		 2038#if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE)
2039 case SOL_ALG:
2040 switch (optname) {
2041 case ALG_SET_KEY:
2042 {
2043 char *alg_key = g_malloc(optlen);
2044
2045 if (!alg_key) {
2046 return -TARGET_ENOMEM;
2047 }
2048 if (copy_from_user(alg_key, optval_addr, optlen)) {
2049 g_free(alg_key);
2050 return -TARGET_EFAULT;
2051 }
2052 ret = get_errno(setsockopt(sockfd, level, optname,
2053 alg_key, optlen));
2054 g_free(alg_key);
2055 break;
2056 }
2057 case ALG_SET_AEAD_AUTHSIZE:
2058 {
2059 ret = get_errno(setsockopt(sockfd, level, optname,
2060 NULL, optlen));
2061 break;
2062 }
2063 default:
2064 goto unimplemented;
2065 }
2066 break;
2067#endif
3532fa74 2068 case TARGET_SOL_SOCKET:
8853f86e 2069 switch (optname) {
1b09aeb9
LV		 2070 case TARGET_SO_RCVTIMEO:
2071 {
2072 struct timeval tv;
2073
2074 optname = SO_RCVTIMEO;
2075
2076set_timeout:
2077 if (optlen != sizeof(struct target_timeval)) {
2078 return -TARGET_EINVAL;
2079 }
2080
2081 if (copy_from_user_timeval(&tv, optval_addr)) {
2082 return -TARGET_EFAULT;
2083 }
2084
2085 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2086 &tv, sizeof(tv)));
2087 return ret;
2088 }
2089 case TARGET_SO_SNDTIMEO:
2090 optname = SO_SNDTIMEO;
2091 goto set_timeout;
f57d4192
LV		 2092 case TARGET_SO_ATTACH_FILTER:
2093 {
2094 struct target_sock_fprog *tfprog;
2095 struct target_sock_filter *tfilter;
2096 struct sock_fprog fprog;
2097 struct sock_filter *filter;
2098 int i;
2099
2100 if (optlen != sizeof(*tfprog)) {
2101 return -TARGET_EINVAL;
2102 }
2103 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
2104 return -TARGET_EFAULT;
2105 }
2106 if (!lock_user_struct(VERIFY_READ, tfilter,
2107 tswapal(tfprog->filter), 0)) {
2108 unlock_user_struct(tfprog, optval_addr, 1);
2109 return -TARGET_EFAULT;
2110 }
2111
2112 fprog.len = tswap16(tfprog->len);
0e173b24 2113 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 2114 if (filter == NULL) {
2115 unlock_user_struct(tfilter, tfprog->filter, 1);
2116 unlock_user_struct(tfprog, optval_addr, 1);
2117 return -TARGET_ENOMEM;
2118 }
2119 for (i = 0; i < fprog.len; i++) {
2120 filter[i].code = tswap16(tfilter[i].code);
2121 filter[i].jt = tfilter[i].jt;
2122 filter[i].jf = tfilter[i].jf;
2123 filter[i].k = tswap32(tfilter[i].k);
2124 }
2125 fprog.filter = filter;
2126
2127 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2128 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2129 g_free(filter);
f57d4192
LV		 2130
2131 unlock_user_struct(tfilter, tfprog->filter, 1);
2132 unlock_user_struct(tfprog, optval_addr, 1);
2133 return ret;
2134 }
451aaf68
JT		 2135 case TARGET_SO_BINDTODEVICE:
2136 {
2137 char *dev_ifname, *addr_ifname;
2138
2139 if (optlen > IFNAMSIZ - 1) {
2140 optlen = IFNAMSIZ - 1;
2141 }
2142 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2143 if (!dev_ifname) {
2144 return -TARGET_EFAULT;
2145 }
2146 optname = SO_BINDTODEVICE;
2147 addr_ifname = alloca(IFNAMSIZ);
2148 memcpy(addr_ifname, dev_ifname, optlen);
2149 addr_ifname[optlen] = 0;
fad6c58a
CG		 2150 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2151 addr_ifname, optlen));
451aaf68
JT		 2152 unlock_user (dev_ifname, optval_addr, 0);
2153 return ret;
2154 }
83eb6e50
CMAB		 2155 case TARGET_SO_LINGER:
2156 {
2157 struct linger lg;
2158 struct target_linger *tlg;
2159
2160 if (optlen != sizeof(struct target_linger)) {
2161 return -TARGET_EINVAL;
2162 }
2163 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2164 return -TARGET_EFAULT;
2165 }
2166 __get_user(lg.l_onoff, &tlg->l_onoff);
2167 __get_user(lg.l_linger, &tlg->l_linger);
2168 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2169 &lg, sizeof(lg)));
2170 unlock_user_struct(tlg, optval_addr, 0);
2171 return ret;
2172 }
8853f86e 2173 /* Options with 'int' argument. */
3532fa74
FB		 2174 case TARGET_SO_DEBUG:
2175 optname = SO_DEBUG;
2176 break;
2177 case TARGET_SO_REUSEADDR:
2178 optname = SO_REUSEADDR;
2179 break;
113a9dd7
YS		 2180#ifdef SO_REUSEPORT
2181 case TARGET_SO_REUSEPORT:
2182 optname = SO_REUSEPORT;
2183 break;
2184#endif
3532fa74
FB		 2185 case TARGET_SO_TYPE:
2186 optname = SO_TYPE;
2187 break;
2188 case TARGET_SO_ERROR:
2189 optname = SO_ERROR;
2190 break;
2191 case TARGET_SO_DONTROUTE:
2192 optname = SO_DONTROUTE;
2193 break;
2194 case TARGET_SO_BROADCAST:
2195 optname = SO_BROADCAST;
2196 break;
2197 case TARGET_SO_SNDBUF:
2198 optname = SO_SNDBUF;
2199 break;
d79b6cc4
PB		 2200 case TARGET_SO_SNDBUFFORCE:
2201 optname = SO_SNDBUFFORCE;
2202 break;
3532fa74
FB		 2203 case TARGET_SO_RCVBUF:
2204 optname = SO_RCVBUF;
2205 break;
d79b6cc4
PB		 2206 case TARGET_SO_RCVBUFFORCE:
2207 optname = SO_RCVBUFFORCE;
2208 break;
3532fa74
FB		 2209 case TARGET_SO_KEEPALIVE:
2210 optname = SO_KEEPALIVE;
2211 break;
2212 case TARGET_SO_OOBINLINE:
2213 optname = SO_OOBINLINE;
2214 break;
2215 case TARGET_SO_NO_CHECK:
2216 optname = SO_NO_CHECK;
2217 break;
2218 case TARGET_SO_PRIORITY:
2219 optname = SO_PRIORITY;
2220 break;
5e83e8e3 2221#ifdef SO_BSDCOMPAT
3532fa74
FB		 2222 case TARGET_SO_BSDCOMPAT:
2223 optname = SO_BSDCOMPAT;
2224 break;
5e83e8e3 2225#endif
3532fa74
FB		 2226 case TARGET_SO_PASSCRED:
2227 optname = SO_PASSCRED;
2228 break;
82d0fe6b
PB		 2229 case TARGET_SO_PASSSEC:
2230 optname = SO_PASSSEC;
2231 break;
3532fa74
FB		 2232 case TARGET_SO_TIMESTAMP:
2233 optname = SO_TIMESTAMP;
2234 break;
2235 case TARGET_SO_RCVLOWAT:
2236 optname = SO_RCVLOWAT;
2237 break;
8853f86e
FB		 2238 default:
2239 goto unimplemented;
2240 }
3532fa74 2241 if (optlen < sizeof(uint32_t))
2f619698 2242 return -TARGET_EINVAL;
3532fa74 2243
2f619698
FB		 2244 if (get_user_u32(val, optval_addr))
2245 return -TARGET_EFAULT;
3532fa74 2246 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2247 break;
7854b056 2248 default:
8853f86e 2249 unimplemented:
b2bedb21 2250 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 2251 ret = -TARGET_ENOPROTOOPT;
7854b056 2252 }
8853f86e 2253 return ret;
7854b056
FB		 2254}
2255
0da46a6e 2256/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2257static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2258 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2259{
992f48a0 2260 abi_long ret;
b55266b5
BS		 2261 int len, val;
2262 socklen_t lv;
8853f86e
FB		 2263
2264 switch(level) {
3532fa74 2265 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2266 level = SOL_SOCKET;
2267 switch (optname) {
2268 /* These don't just return a single integer */
f3b974cd
JL		 2269 case TARGET_SO_RCVTIMEO:
2270 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 2271 case TARGET_SO_PEERNAME:
2272 goto unimplemented;
583359a6
AP		 2273 case TARGET_SO_PEERCRED: {
2274 struct ucred cr;
2275 socklen_t crlen;
2276 struct target_ucred *tcr;
2277
2278 if (get_user_u32(len, optlen)) {
2279 return -TARGET_EFAULT;
2280 }
2281 if (len < 0) {
2282 return -TARGET_EINVAL;
2283 }
2284
2285 crlen = sizeof(cr);
2286 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2287 &cr, &crlen));
2288 if (ret < 0) {
2289 return ret;
2290 }
2291 if (len > crlen) {
2292 len = crlen;
2293 }
2294 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2295 return -TARGET_EFAULT;
2296 }
2297 __put_user(cr.pid, &tcr->pid);
2298 __put_user(cr.uid, &tcr->uid);
2299 __put_user(cr.gid, &tcr->gid);
2300 unlock_user_struct(tcr, optval_addr, 1);
2301 if (put_user_u32(len, optlen)) {
83eb6e50
CMAB		 2302 return -TARGET_EFAULT;
2303 }
2304 break;
2305 }
2306 case TARGET_SO_LINGER:
2307 {
2308 struct linger lg;
2309 socklen_t lglen;
2310 struct target_linger *tlg;
2311
2312 if (get_user_u32(len, optlen)) {
2313 return -TARGET_EFAULT;
2314 }
2315 if (len < 0) {
2316 return -TARGET_EINVAL;
2317 }
2318
2319 lglen = sizeof(lg);
2320 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2321 &lg, &lglen));
2322 if (ret < 0) {
2323 return ret;
2324 }
2325 if (len > lglen) {
2326 len = lglen;
2327 }
2328 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2329 return -TARGET_EFAULT;
2330 }
2331 __put_user(lg.l_onoff, &tlg->l_onoff);
2332 __put_user(lg.l_linger, &tlg->l_linger);
2333 unlock_user_struct(tlg, optval_addr, 1);
2334 if (put_user_u32(len, optlen)) {
583359a6
AP		 2335 return -TARGET_EFAULT;
2336 }
2337 break;
2338 }
f3b974cd
JL		 2339 /* Options with 'int' argument. */
2340 case TARGET_SO_DEBUG:
2341 optname = SO_DEBUG;
2342 goto int_case;
2343 case TARGET_SO_REUSEADDR:
2344 optname = SO_REUSEADDR;
2345 goto int_case;
113a9dd7
YS		 2346#ifdef SO_REUSEPORT
2347 case TARGET_SO_REUSEPORT:
2348 optname = SO_REUSEPORT;
2349 goto int_case;
2350#endif
f3b974cd
JL		 2351 case TARGET_SO_TYPE:
2352 optname = SO_TYPE;
2353 goto int_case;
2354 case TARGET_SO_ERROR:
2355 optname = SO_ERROR;
2356 goto int_case;
2357 case TARGET_SO_DONTROUTE:
2358 optname = SO_DONTROUTE;
2359 goto int_case;
2360 case TARGET_SO_BROADCAST:
2361 optname = SO_BROADCAST;
2362 goto int_case;
2363 case TARGET_SO_SNDBUF:
2364 optname = SO_SNDBUF;
2365 goto int_case;
2366 case TARGET_SO_RCVBUF:
2367 optname = SO_RCVBUF;
2368 goto int_case;
2369 case TARGET_SO_KEEPALIVE:
2370 optname = SO_KEEPALIVE;
2371 goto int_case;
2372 case TARGET_SO_OOBINLINE:
2373 optname = SO_OOBINLINE;
2374 goto int_case;
2375 case TARGET_SO_NO_CHECK:
2376 optname = SO_NO_CHECK;
2377 goto int_case;
2378 case TARGET_SO_PRIORITY:
2379 optname = SO_PRIORITY;
2380 goto int_case;
2381#ifdef SO_BSDCOMPAT
2382 case TARGET_SO_BSDCOMPAT:
2383 optname = SO_BSDCOMPAT;
2384 goto int_case;
2385#endif
2386 case TARGET_SO_PASSCRED:
2387 optname = SO_PASSCRED;
2388 goto int_case;
2389 case TARGET_SO_TIMESTAMP:
2390 optname = SO_TIMESTAMP;
2391 goto int_case;
2392 case TARGET_SO_RCVLOWAT:
2393 optname = SO_RCVLOWAT;
2394 goto int_case;
aec1ca41
PB		 2395 case TARGET_SO_ACCEPTCONN:
2396 optname = SO_ACCEPTCONN;
2397 goto int_case;
8853f86e 2398 default:
2efbe911
FB		 2399 goto int_case;
2400 }
2401 break;
2402 case SOL_TCP:
2403 /* TCP options all take an 'int' value. */
2404 int_case:
2f619698
FB		 2405 if (get_user_u32(len, optlen))
2406 return -TARGET_EFAULT;
2efbe911 2407 if (len < 0)
0da46a6e 2408 return -TARGET_EINVAL;
73160d95 2409 lv = sizeof(lv);
2efbe911
FB		 2410 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2411 if (ret < 0)
2412 return ret;
8289d112
PB		 2413 if (optname == SO_TYPE) {
2414 val = host_to_target_sock_type(val);
2415 }
2efbe911
FB		 2416 if (len > lv)
2417 len = lv;
2f619698
FB		 2418 if (len == 4) {
2419 if (put_user_u32(val, optval_addr))
2420 return -TARGET_EFAULT;
2421 } else {
2422 if (put_user_u8(val, optval_addr))
2423 return -TARGET_EFAULT;
f3b974cd 2424 }
2f619698
FB		 2425 if (put_user_u32(len, optlen))
2426 return -TARGET_EFAULT;
2efbe911
FB		 2427 break;
2428 case SOL_IP:
2429 switch(optname) {
2430 case IP_TOS:
2431 case IP_TTL:
2432 case IP_HDRINCL:
2433 case IP_ROUTER_ALERT:
2434 case IP_RECVOPTS:
2435 case IP_RETOPTS:
2436 case IP_PKTINFO:
2437 case IP_MTU_DISCOVER:
2438 case IP_RECVERR:
2439 case IP_RECVTOS:
2440#ifdef IP_FREEBIND
2441 case IP_FREEBIND:
2442#endif
2443 case IP_MULTICAST_TTL:
2444 case IP_MULTICAST_LOOP:
2f619698
FB		 2445 if (get_user_u32(len, optlen))
2446 return -TARGET_EFAULT;
8853f86e 2447 if (len < 0)
0da46a6e 2448 return -TARGET_EINVAL;
73160d95 2449 lv = sizeof(lv);
8853f86e
FB		 2450 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2451 if (ret < 0)
2452 return ret;
2efbe911 2453 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2454 len = 1;
2f619698
FB		 2455 if (put_user_u32(len, optlen)
2456 || put_user_u8(val, optval_addr))
2457 return -TARGET_EFAULT;
2efbe911 2458 } else {
2efbe911
FB		 2459 if (len > sizeof(int))
2460 len = sizeof(int);
2f619698
FB		 2461 if (put_user_u32(len, optlen)
2462 || put_user_u32(val, optval_addr))
2463 return -TARGET_EFAULT;
2efbe911 2464 }
8853f86e 2465 break;
2efbe911 2466 default:
c02f499e
TS		 2467 ret = -TARGET_ENOPROTOOPT;
2468 break;
8853f86e
FB		 2469 }
2470 break;
bd8ed485
TD		 2471 case SOL_IPV6:
2472 switch (optname) {
2473 case IPV6_MTU_DISCOVER:
2474 case IPV6_MTU:
2475 case IPV6_V6ONLY:
2476 case IPV6_RECVPKTINFO:
2477 case IPV6_UNICAST_HOPS:
2478 case IPV6_MULTICAST_HOPS:
2479 case IPV6_MULTICAST_LOOP:
2480 case IPV6_RECVERR:
2481 case IPV6_RECVHOPLIMIT:
2482 case IPV6_2292HOPLIMIT:
2483 case IPV6_CHECKSUM:
b9cce6d7
HD		 2484 case IPV6_ADDRFORM:
2485 case IPV6_2292PKTINFO:
2486 case IPV6_RECVTCLASS:
2487 case IPV6_RECVRTHDR:
2488 case IPV6_2292RTHDR:
2489 case IPV6_RECVHOPOPTS:
2490 case IPV6_2292HOPOPTS:
2491 case IPV6_RECVDSTOPTS:
2492 case IPV6_2292DSTOPTS:
2493 case IPV6_TCLASS:
2494#ifdef IPV6_RECVPATHMTU
2495 case IPV6_RECVPATHMTU:
2496#endif
2497#ifdef IPV6_TRANSPARENT
2498 case IPV6_TRANSPARENT:
2499#endif
2500#ifdef IPV6_FREEBIND
2501 case IPV6_FREEBIND:
2502#endif
2503#ifdef IPV6_RECVORIGDSTADDR
2504 case IPV6_RECVORIGDSTADDR:
2505#endif
bd8ed485
TD		 2506 if (get_user_u32(len, optlen))
2507 return -TARGET_EFAULT;
2508 if (len < 0)
2509 return -TARGET_EINVAL;
2510 lv = sizeof(lv);
2511 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2512 if (ret < 0)
2513 return ret;
2514 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2515 len = 1;
2516 if (put_user_u32(len, optlen)
2517 || put_user_u8(val, optval_addr))
2518 return -TARGET_EFAULT;
2519 } else {
2520 if (len > sizeof(int))
2521 len = sizeof(int);
2522 if (put_user_u32(len, optlen)
2523 || put_user_u32(val, optval_addr))
2524 return -TARGET_EFAULT;
2525 }
2526 break;
2527 default:
2528 ret = -TARGET_ENOPROTOOPT;
2529 break;
2530 }
2531 break;
8853f86e
FB		 2532 default:
2533 unimplemented:
2534 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2535 level, optname);
c02f499e 2536 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 2537 break;
2538 }
2539 return ret;
7854b056
FB		 2540}
2541
9ac22517
MF		 2542/* Convert target low/high pair representing file offset into the host
2543 * low/high pair. This function doesn't handle offsets bigger than 64 bits
2544 * as the kernel doesn't handle them either.
2545 */
2546static void target_to_host_low_high(abi_ulong tlow,
2547 abi_ulong thigh,
2548 unsigned long *hlow,
2549 unsigned long *hhigh)
2550{
2551 uint64_t off = tlow |
2552 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
2553 TARGET_LONG_BITS / 2;
2554
2555 *hlow = off;
2556 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
2557}
2558
f287b2c2 2559static struct iovec *lock_iovec(int type, abi_ulong target_addr,
dab32b32 2560 abi_ulong count, int copy)
53a5960a
PB		 2561{
2562 struct target_iovec *target_vec;
f287b2c2
RH		 2563 struct iovec *vec;
2564 abi_ulong total_len, max_len;
d732dcb4 2565 int i;
501bb4b0 2566 int err = 0;
29560a6c 2567 bool bad_address = false;
53a5960a 2568
f287b2c2
RH		 2569 if (count == 0) {
2570 errno = 0;
2571 return NULL;
2572 }
dab32b32 2573 if (count > IOV_MAX) {
f287b2c2
RH		 2574 errno = EINVAL;
2575 return NULL;
2576 }
2577
0e173b24 2578 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 2579 if (vec == NULL) {
2580 errno = ENOMEM;
2581 return NULL;
2582 }
2583
2584 target_vec = lock_user(VERIFY_READ, target_addr,
2585 count * sizeof(struct target_iovec), 1);
2586 if (target_vec == NULL) {
501bb4b0 2587 err = EFAULT;
f287b2c2
RH		 2588 goto fail2;
2589 }
2590
2591 /* ??? If host page size > target page size, this will result in a
2592 value larger than what we can actually support. */
2593 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2594 total_len = 0;
2595
2596 for (i = 0; i < count; i++) {
2597 abi_ulong base = tswapal(target_vec[i].iov_base);
2598 abi_long len = tswapal(target_vec[i].iov_len);
2599
2600 if (len < 0) {
501bb4b0 2601 err = EINVAL;
f287b2c2
RH		 2602 goto fail;
2603 } else if (len == 0) {
2604 /* Zero length pointer is ignored. */
2605 vec[i].iov_base = 0;
41df8411 2606 } else {
f287b2c2 2607 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 2608 /* If the first buffer pointer is bad, this is a fault. But
2609 * subsequent bad buffers will result in a partial write; this
2610 * is realized by filling the vector with null pointers and
2611 * zero lengths. */
f287b2c2 2612 if (!vec[i].iov_base) {
29560a6c
TM		 2613 if (i == 0) {
2614 err = EFAULT;
2615 goto fail;
2616 } else {
2617 bad_address = true;
2618 }
2619 }
2620 if (bad_address) {
2621 len = 0;
f287b2c2
RH		 2622 }
2623 if (len > max_len - total_len) {
2624 len = max_len - total_len;
2625 }
41df8411 2626 }
f287b2c2
RH		 2627 vec[i].iov_len = len;
2628 total_len += len;
579a97f7 2629 }
f287b2c2
RH		 2630
2631 unlock_user(target_vec, target_addr, 0);
2632 return vec;
2633
2634 fail:
7eff518b
CG		 2635 while (--i >= 0) {
2636 if (tswapal(target_vec[i].iov_len) > 0) {
2637 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2638 }
2639 }
f287b2c2 2640 unlock_user(target_vec, target_addr, 0);
501bb4b0 2641 fail2:
0e173b24 2642 g_free(vec);
501bb4b0 2643 errno = err;
f287b2c2 2644 return NULL;
53a5960a
PB		 2645}
2646
f287b2c2 2647static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
dab32b32 2648 abi_ulong count, int copy)
53a5960a
PB		 2649{
2650 struct target_iovec *target_vec;
53a5960a
PB		 2651 int i;
2652
f287b2c2
RH		 2653 target_vec = lock_user(VERIFY_READ, target_addr,
2654 count * sizeof(struct target_iovec), 1);
2655 if (target_vec) {
2656 for (i = 0; i < count; i++) {
2657 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 2658 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 2659 if (len < 0) {
2660 break;
2661 }
d732dcb4
AZ		 2662 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2663 }
f287b2c2 2664 unlock_user(target_vec, target_addr, 0);
53a5960a 2665 }
579a97f7 2666
0e173b24 2667 g_free(vec);
53a5960a
PB		 2668}
2669
53d09b76 2670static inline int target_to_host_sock_type(int *type)
3532fa74 2671{
f651e6ae
PJ		 2672 int host_type = 0;
2673 int target_type = *type;
2674
2675 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 2676 case TARGET_SOCK_DGRAM:
f651e6ae 2677 host_type = SOCK_DGRAM;
3532fa74
FB		 2678 break;
2679 case TARGET_SOCK_STREAM:
f651e6ae 2680 host_type = SOCK_STREAM;
3532fa74 2681 break;
f651e6ae
PJ		 2682 default:
2683 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 2684 break;
2685 }
f651e6ae 2686 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 2687#if defined(SOCK_CLOEXEC)
f651e6ae 2688 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 2689#else
2690 return -TARGET_EINVAL;
2691#endif
f651e6ae
PJ		 2692 }
2693 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 2694#if defined(SOCK_NONBLOCK)
f651e6ae 2695 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 2696#elif !defined(O_NONBLOCK)
2697 return -TARGET_EINVAL;
2698#endif
f651e6ae
PJ		 2699 }
2700 *type = host_type;
53d09b76
EI		 2701 return 0;
2702}
2703
2704/* Try to emulate socket type flags after socket creation. */
2705static int sock_flags_fixup(int fd, int target_type)
2706{
2707#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2708 if (target_type & TARGET_SOCK_NONBLOCK) {
2709 int flags = fcntl(fd, F_GETFL);
2710 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2711 close(fd);
2712 return -TARGET_EINVAL;
2713 }
2714 }
2715#endif
2716 return fd;
f651e6ae
PJ		 2717}
2718
2719/* do_socket() Must return target values and target errnos. */
2720static abi_long do_socket(int domain, int type, int protocol)
2721{
53d09b76
EI		 2722 int target_type = type;
2723 int ret;
2724
2725 ret = target_to_host_sock_type(&type);
2726 if (ret) {
2727 return ret;
2728 }
f651e6ae 2729
575b22b1
LV		 2730 if (domain == PF_NETLINK && !(
2731#ifdef CONFIG_RTNETLINK
2732 protocol == NETLINK_ROUTE ||
2733#endif
2734 protocol == NETLINK_KOBJECT_UEVENT ||
2735 protocol == NETLINK_AUDIT)) {
6c5b5645
LV		 2736 return -EPFNOSUPPORT;
2737 }
ff626f2d
LV		 2738
2739 if (domain == AF_PACKET ||
2740 (domain == AF_INET && type == SOCK_PACKET)) {
2741 protocol = tswap16(protocol);
2742 }
2743
53d09b76
EI		 2744 ret = get_errno(socket(domain, type, protocol));
2745 if (ret >= 0) {
2746 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 2747 if (type == SOCK_PACKET) {
2748 /* Manage an obsolete case :
2749 * if socket type is SOCK_PACKET, bind by name
2750 */
2751 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 2752 } else if (domain == PF_NETLINK) {
2753 switch (protocol) {
575b22b1 2754#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2755 case NETLINK_ROUTE:
2756 fd_trans_register(ret, &target_netlink_route_trans);
2757 break;
575b22b1 2758#endif
b265620b
LV		 2759 case NETLINK_KOBJECT_UEVENT:
2760 /* nothing to do: messages are strings */
2761 break;
5ce9bb59
LV		 2762 case NETLINK_AUDIT:
2763 fd_trans_register(ret, &target_netlink_audit_trans);
2764 break;
6c5b5645
LV		 2765 default:
2766 g_assert_not_reached();
2767 }
0cf22722 2768 }
53d09b76
EI		 2769 }
2770 return ret;
3532fa74
FB		 2771}
2772
0da46a6e 2773/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 2774static abi_long do_bind(int sockfd, abi_ulong target_addr,
2775 socklen_t addrlen)
3532fa74 2776{
8f7aeaf6 2777 void *addr;
917507b0 2778 abi_long ret;
8f7aeaf6 2779
38724253 2780 if ((int)addrlen < 0) {
8f7aeaf6 2781 return -TARGET_EINVAL;
38724253 2782 }
8f7aeaf6 2783
607175e0 2784 addr = alloca(addrlen+1);
3b46e624 2785
7b36f782 2786 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2787 if (ret)
2788 return ret;
2789
3532fa74
FB		 2790 return get_errno(bind(sockfd, addr, addrlen));
2791}
2792
0da46a6e 2793/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 2794static abi_long do_connect(int sockfd, abi_ulong target_addr,
2795 socklen_t addrlen)
3532fa74 2796{
8f7aeaf6 2797 void *addr;
917507b0 2798 abi_long ret;
8f7aeaf6 2799
38724253 2800 if ((int)addrlen < 0) {
8f7aeaf6 2801 return -TARGET_EINVAL;
38724253 2802 }
8f7aeaf6 2803
2dd08dfd 2804 addr = alloca(addrlen+1);
3b46e624 2805
7b36f782 2806 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2807 if (ret)
2808 return ret;
2809
2a3c7619 2810 return get_errno(safe_connect(sockfd, addr, addrlen));
3532fa74
FB		 2811}
2812
f19e00d7
AG		 2813/* do_sendrecvmsg_locked() Must return target values and target errnos. */
2814static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2815 int flags, int send)
3532fa74 2816{
6de645c7 2817 abi_long ret, len;
3532fa74 2818 struct msghdr msg;
dab32b32 2819 abi_ulong count;
3532fa74 2820 struct iovec *vec;
992f48a0 2821 abi_ulong target_vec;
3532fa74 2822
3532fa74
FB		 2823 if (msgp->msg_name) {
2824 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 2825 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 2826 ret = target_to_host_sockaddr(fd, msg.msg_name,
2827 tswapal(msgp->msg_name),
2828 msg.msg_namelen);
26a6fc96
PM		 2829 if (ret == -TARGET_EFAULT) {
2830 /* For connected sockets msg_name and msg_namelen must
2831 * be ignored, so returning EFAULT immediately is wrong.
2832 * Instead, pass a bad msg_name to the host kernel, and
2833 * let it decide whether to return EFAULT or not.
2834 */
2835 msg.msg_name = (void *)-1;
2836 } else if (ret) {
f287b2c2 2837 goto out2;
917507b0 2838 }
3532fa74
FB		 2839 } else {
2840 msg.msg_name = NULL;
2841 msg.msg_namelen = 0;
2842 }
cbb21eed 2843 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74 2844 msg.msg_control = alloca(msg.msg_controllen);
1d3d1b23
JS		 2845 memset(msg.msg_control, 0, msg.msg_controllen);
2846
3532fa74 2847 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 2848
cbb21eed 2849 count = tswapal(msgp->msg_iovlen);
cbb21eed 2850 target_vec = tswapal(msgp->msg_iov);
97b07970
PM		 2851
2852 if (count > IOV_MAX) {
2853 /* sendrcvmsg returns a different errno for this condition than
2854 * readv/writev, so we must catch it here before lock_iovec() does.
2855 */
2856 ret = -TARGET_EMSGSIZE;
2857 goto out2;
2858 }
2859
f287b2c2
RH		 2860 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2861 target_vec, count, send);
2862 if (vec == NULL) {
2863 ret = -host_to_target_errno(errno);
2864 goto out2;
2865 }
3532fa74
FB		 2866 msg.msg_iovlen = count;
2867 msg.msg_iov = vec;
3b46e624 2868
3532fa74 2869 if (send) {
6c5b5645 2870 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2871 void *host_msg;
2872
2873 host_msg = g_malloc(msg.msg_iov->iov_len);
2874 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
2875 ret = fd_trans_target_to_host_data(fd)(host_msg,
6c5b5645 2876 msg.msg_iov->iov_len);
7d61d892
LV		 2877 if (ret >= 0) {
2878 msg.msg_iov->iov_base = host_msg;
2879 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2880 }
2881 g_free(host_msg);
6c5b5645
LV		 2882 } else {
2883 ret = target_to_host_cmsg(&msg, msgp);
7d61d892
LV		 2884 if (ret == 0) {
2885 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2886 }
6c5b5645 2887 }
3532fa74 2888 } else {
66687530 2889 ret = get_errno(safe_recvmsg(fd, &msg, flags));
6de645c7
AZ		 2890 if (!is_error(ret)) {
2891 len = ret;
6c5b5645
LV		 2892 if (fd_trans_host_to_target_data(fd)) {
2893 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2a03d3e6 2894 MIN(msg.msg_iov->iov_len, len));
6c5b5645
LV		 2895 } else {
2896 ret = host_to_target_cmsg(msgp, &msg);
2897 }
ca619067
JH		 2898 if (!is_error(ret)) {
2899 msgp->msg_namelen = tswap32(msg.msg_namelen);
24894f39 2900 msgp->msg_flags = tswap32(msg.msg_flags);
26a6fc96 2901 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ca619067
JH		 2902 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2903 msg.msg_name, msg.msg_namelen);
2904 if (ret) {
2905 goto out;
2906 }
2907 }
2908
6de645c7 2909 ret = len;
ca619067 2910 }
6de645c7 2911 }
3532fa74 2912 }
ca619067
JH		 2913
2914out:
3532fa74 2915 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 2916out2:
f19e00d7
AG		 2917 return ret;
2918}
2919
2920static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2921 int flags, int send)
2922{
2923 abi_long ret;
2924 struct target_msghdr *msgp;
2925
2926 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2927 msgp,
2928 target_msg,
2929 send ? 1 : 0)) {
2930 return -TARGET_EFAULT;
2931 }
2932 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 2933 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 2934 return ret;
2935}
2936
f19e00d7
AG		 2937/* We don't rely on the C library to have sendmmsg/recvmmsg support,
2938 * so it might not have this *mmsg-specific flag either.
2939 */
2940#ifndef MSG_WAITFORONE
2941#define MSG_WAITFORONE 0x10000
2942#endif
2943
2944static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2945 unsigned int vlen, unsigned int flags,
2946 int send)
2947{
2948 struct target_mmsghdr *mmsgp;
2949 abi_long ret = 0;
2950 int i;
2951
2952 if (vlen > UIO_MAXIOV) {
2953 vlen = UIO_MAXIOV;
2954 }
2955
2956 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2957 if (!mmsgp) {
2958 return -TARGET_EFAULT;
2959 }
2960
2961 for (i = 0; i < vlen; i++) {
2962 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2963 if (is_error(ret)) {
2964 break;
2965 }
2966 mmsgp[i].msg_len = tswap32(ret);
2967 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2968 if (flags & MSG_WAITFORONE) {
2969 flags |= MSG_DONTWAIT;
2970 }
2971 }
2972
2973 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2974
2975 /* Return number of datagrams sent if we sent any at all;
2976 * otherwise return the error.
2977 */
2978 if (i) {
2979 return i;
2980 }
2981 return ret;
2982}
f19e00d7 2983
a94b4987
PM		 2984/* do_accept4() Must return target values and target errnos. */
2985static abi_long do_accept4(int fd, abi_ulong target_addr,
2986 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 2987{
cd813367 2988 socklen_t addrlen, ret_addrlen;
2f619698 2989 void *addr;
992f48a0 2990 abi_long ret;
d25295d4
PJ		 2991 int host_flags;
2992
2993 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 2994
a94b4987 2995 if (target_addr == 0) {
ff6dc130 2996 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
a94b4987 2997 }
917507b0
AP		 2998
2999 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 3000 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 3001 return -TARGET_EINVAL;
2f619698 3002
38724253 3003 if ((int)addrlen < 0) {
8f7aeaf6 3004 return -TARGET_EINVAL;
38724253 3005 }
8f7aeaf6 3006
917507b0
AP		 3007 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3008 return -TARGET_EINVAL;
3009
2f619698
FB		 3010 addr = alloca(addrlen);
3011
cd813367
AS		 3012 ret_addrlen = addrlen;
3013 ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags));
1be9e1dc 3014 if (!is_error(ret)) {
cd813367
AS		 3015 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3016 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3017 ret = -TARGET_EFAULT;
cd813367 3018 }
1be9e1dc
PB		 3019 }
3020 return ret;
3021}
3022
0da46a6e 3023/* do_getpeername() Must return target values and target errnos. */
992f48a0 3024static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 3025 abi_ulong target_addrlen_addr)
1be9e1dc 3026{
cd813367 3027 socklen_t addrlen, ret_addrlen;
2f619698 3028 void *addr;
992f48a0 3029 abi_long ret;
1be9e1dc 3030
2f619698
FB		 3031 if (get_user_u32(addrlen, target_addrlen_addr))
3032 return -TARGET_EFAULT;
3033
38724253 3034 if ((int)addrlen < 0) {
8f7aeaf6 3035 return -TARGET_EINVAL;
38724253 3036 }
8f7aeaf6 3037
917507b0
AP		 3038 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3039 return -TARGET_EFAULT;
3040
2f619698
FB		 3041 addr = alloca(addrlen);
3042
cd813367
AS		 3043 ret_addrlen = addrlen;
3044 ret = get_errno(getpeername(fd, addr, &ret_addrlen));
1be9e1dc 3045 if (!is_error(ret)) {
cd813367
AS		 3046 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3047 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3048 ret = -TARGET_EFAULT;
cd813367 3049 }
1be9e1dc
PB		 3050 }
3051 return ret;
3052}
3053
0da46a6e 3054/* do_getsockname() Must return target values and target errnos. */
992f48a0 3055static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 3056 abi_ulong target_addrlen_addr)
1be9e1dc 3057{
cd813367 3058 socklen_t addrlen, ret_addrlen;
2f619698 3059 void *addr;
992f48a0 3060 abi_long ret;
1be9e1dc 3061
2f619698
FB		 3062 if (get_user_u32(addrlen, target_addrlen_addr))
3063 return -TARGET_EFAULT;
3064
38724253 3065 if ((int)addrlen < 0) {
8f7aeaf6 3066 return -TARGET_EINVAL;
38724253 3067 }
8f7aeaf6 3068
917507b0
AP		 3069 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3070 return -TARGET_EFAULT;
3071
2f619698
FB		 3072 addr = alloca(addrlen);
3073
cd813367
AS		 3074 ret_addrlen = addrlen;
3075 ret = get_errno(getsockname(fd, addr, &ret_addrlen));
1be9e1dc 3076 if (!is_error(ret)) {
cd813367
AS		 3077 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
3078 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 3079 ret = -TARGET_EFAULT;
cd813367 3080 }
1be9e1dc
PB		 3081 }
3082 return ret;
3083}
3084
0da46a6e 3085/* do_socketpair() Must return target values and target errnos. */
992f48a0 3086static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 3087 abi_ulong target_tab_addr)
1be9e1dc
PB		 3088{
3089 int tab[2];
992f48a0 3090 abi_long ret;
1be9e1dc 3091
f651e6ae
PJ		 3092 target_to_host_sock_type(&type);
3093
1be9e1dc
PB		 3094 ret = get_errno(socketpair(domain, type, protocol, tab));
3095 if (!is_error(ret)) {
2f619698
FB		 3096 if (put_user_s32(tab[0], target_tab_addr)
3097 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
3098 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3099 }
3100 return ret;
3101}
3102
0da46a6e 3103/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 3104static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
3105 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 3106{
3107 void *addr;
3108 void *host_msg;
7d61d892 3109 void *copy_msg = NULL;
992f48a0 3110 abi_long ret;
1be9e1dc 3111
38724253 3112 if ((int)addrlen < 0) {
8f7aeaf6 3113 return -TARGET_EINVAL;
38724253 3114 }
8f7aeaf6 3115
579a97f7
FB		 3116 host_msg = lock_user(VERIFY_READ, msg, len, 1);
3117 if (!host_msg)
3118 return -TARGET_EFAULT;
6c5b5645 3119 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 3120 copy_msg = host_msg;
3121 host_msg = g_malloc(len);
3122 memcpy(host_msg, copy_msg, len);
6c5b5645
LV		 3123 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
3124 if (ret < 0) {
7d61d892 3125 goto fail;
6c5b5645
LV		 3126 }
3127 }
1be9e1dc 3128 if (target_addr) {
2dd08dfd 3129 addr = alloca(addrlen+1);
7b36f782 3130 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0 3131 if (ret) {
7d61d892 3132 goto fail;
917507b0 3133 }
66687530 3134 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
1be9e1dc 3135 } else {
66687530 3136 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
1be9e1dc 3137 }
7d61d892
LV		 3138fail:
3139 if (copy_msg) {
3140 g_free(host_msg);
3141 host_msg = copy_msg;
3142 }
1be9e1dc
PB		 3143 unlock_user(host_msg, msg, 0);
3144 return ret;
3145}
3146
0da46a6e 3147/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3148static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3149 abi_ulong target_addr,
3150 abi_ulong target_addrlen)
1be9e1dc 3151{
cd813367 3152 socklen_t addrlen, ret_addrlen;
1be9e1dc
PB		 3153 void *addr;
3154 void *host_msg;
992f48a0 3155 abi_long ret;
1be9e1dc 3156
579a97f7
FB		 3157 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3158 if (!host_msg)
3159 return -TARGET_EFAULT;
1be9e1dc 3160 if (target_addr) {
2f619698
FB		 3161 if (get_user_u32(addrlen, target_addrlen)) {
3162 ret = -TARGET_EFAULT;
3163 goto fail;
3164 }
38724253 3165 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3166 ret = -TARGET_EINVAL;
3167 goto fail;
3168 }
1be9e1dc 3169 addr = alloca(addrlen);
cd813367 3170 ret_addrlen = addrlen;
66687530 3171 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
cd813367 3172 addr, &ret_addrlen));
1be9e1dc
PB		 3173 } else {
3174 addr = NULL; /* To keep compiler quiet. */
cd813367 3175 addrlen = 0; /* To keep compiler quiet. */
66687530 3176 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
1be9e1dc
PB		 3177 }
3178 if (!is_error(ret)) {
c35e1f9c 3179 if (fd_trans_host_to_target_data(fd)) {
2a03d3e6
LV		 3180 abi_long trans;
3181 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
3182 if (is_error(trans)) {
3183 ret = trans;
3184 goto fail;
3185 }
c35e1f9c 3186 }
1be9e1dc 3187 if (target_addr) {
cd813367
AS		 3188 host_to_target_sockaddr(target_addr, addr,
3189 MIN(addrlen, ret_addrlen));
3190 if (put_user_u32(ret_addrlen, target_addrlen)) {
2f619698
FB		 3191 ret = -TARGET_EFAULT;
3192 goto fail;
3193 }
1be9e1dc
PB		 3194 }
3195 unlock_user(host_msg, msg, len);
3196 } else {
2f619698 3197fail:
1be9e1dc
PB		 3198 unlock_user(host_msg, msg, 0);
3199 }
3200 return ret;
3201}
3202
32407103 3203#ifdef TARGET_NR_socketcall
ff71a454 3204/* do_socketcall() must return target values and target errnos. */
992f48a0 3205static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3206{
ff71a454
AM		 3207 static const unsigned nargs[] = { /* number of arguments per operation */
3208 [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
3209 [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
3210 [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
3211 [TARGET_SYS_LISTEN] = 2, /* fd, backlog */
3212 [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
3213 [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
3214 [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
3215 [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
3216 [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
3217 [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
3218 [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
3219 [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
3220 [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
3221 [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3222 [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3223 [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
3224 [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
3225 [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
3226 [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
3227 [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
62dc90c6
MT		 3228 };
3229 abi_long a[6]; /* max 6 args */
ff71a454 3230 unsigned i;
62dc90c6 3231
ff71a454
AM		 3232 /* check the range of the first argument num */
3233 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3234 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3235 return -TARGET_EINVAL;
3236 }
3237 /* ensure we have space for args */
3238 if (nargs[num] > ARRAY_SIZE(a)) {
3239 return -TARGET_EINVAL;
3240 }
3241 /* collect the arguments in a[] according to nargs[] */
3242 for (i = 0; i < nargs[num]; ++i) {
3243 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3244 return -TARGET_EFAULT;
31e31b8a 3245 }
62dc90c6 3246 }
ff71a454 3247 /* now when we have the args, invoke the appropriate underlying function */
62dc90c6 3248 switch (num) {
ff71a454 3249 case TARGET_SYS_SOCKET: /* domain, type, protocol */
62dc90c6 3250 return do_socket(a[0], a[1], a[2]);
ff71a454 3251 case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
62dc90c6 3252 return do_bind(a[0], a[1], a[2]);
ff71a454 3253 case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
62dc90c6 3254 return do_connect(a[0], a[1], a[2]);
ff71a454 3255 case TARGET_SYS_LISTEN: /* sockfd, backlog */
62dc90c6 3256 return get_errno(listen(a[0], a[1]));
ff71a454 3257 case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
62dc90c6 3258 return do_accept4(a[0], a[1], a[2], 0);
ff71a454 3259 case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
62dc90c6 3260 return do_getsockname(a[0], a[1], a[2]);
ff71a454 3261 case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
62dc90c6 3262 return do_getpeername(a[0], a[1], a[2]);
ff71a454 3263 case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
62dc90c6 3264 return do_socketpair(a[0], a[1], a[2], a[3]);
ff71a454 3265 case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
62dc90c6 3266 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3267 case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
62dc90c6 3268 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3269 case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3270 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3271 case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3272 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3273 case TARGET_SYS_SHUTDOWN: /* sockfd, how */
62dc90c6 3274 return get_errno(shutdown(a[0], a[1]));
ff71a454
AM		 3275 case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3276 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3277 case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3278 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3279 case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
62dc90c6 3280 return do_sendrecvmsg(a[0], a[1], a[2], 1);
ff71a454 3281 case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
62dc90c6 3282 return do_sendrecvmsg(a[0], a[1], a[2], 0);
ff71a454
AM		 3283 case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
3284 return do_accept4(a[0], a[1], a[2], a[3]);
3285 case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
5a53dc50 3286 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
ff71a454
AM		 3287 case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
3288 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
31e31b8a
FB		 3289 default:
3290 gemu_log("Unsupported socketcall: %d\n", num);
ff71a454 3291 return -TARGET_EINVAL;
31e31b8a 3292 }
31e31b8a 3293}
32407103 3294#endif
31e31b8a 3295
8853f86e
FB		 3296#define N_SHM_REGIONS 32
3297
3298static struct shm_region {
b6e17875
PM		 3299 abi_ulong start;
3300 abi_ulong size;
3301 bool in_use;
8853f86e
FB		 3302} shm_regions[N_SHM_REGIONS];
3303
005eb2ae
PM		 3304#ifndef TARGET_SEMID64_DS
3305/* asm-generic version of this struct */
3306struct target_semid64_ds
3eb6b044
TS		 3307{
3308 struct target_ipc_perm sem_perm;
992f48a0 3309 abi_ulong sem_otime;
005eb2ae 3310#if TARGET_ABI_BITS == 32
992f48a0 3311 abi_ulong __unused1;
03527344 3312#endif
992f48a0 3313 abi_ulong sem_ctime;
005eb2ae 3314#if TARGET_ABI_BITS == 32
992f48a0 3315 abi_ulong __unused2;
03527344 3316#endif
992f48a0
BS		 3317 abi_ulong sem_nsems;
3318 abi_ulong __unused3;
3319 abi_ulong __unused4;
3eb6b044 3320};
005eb2ae 3321#endif
3eb6b044 3322
579a97f7
FB		 3323static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3324 abi_ulong target_addr)
3eb6b044
TS		 3325{
3326 struct target_ipc_perm *target_ip;
005eb2ae 3327 struct target_semid64_ds *target_sd;
3eb6b044 3328
579a97f7
FB		 3329 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3330 return -TARGET_EFAULT;
e8bbe36c 3331 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3332 host_ip->__key = tswap32(target_ip->__key);
3333 host_ip->uid = tswap32(target_ip->uid);
3334 host_ip->gid = tswap32(target_ip->gid);
3335 host_ip->cuid = tswap32(target_ip->cuid);
3336 host_ip->cgid = tswap32(target_ip->cgid);
3337#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3338 host_ip->mode = tswap32(target_ip->mode);
3339#else
cbb21eed 3340 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3341#endif
3342#if defined(TARGET_PPC)
3343 host_ip->__seq = tswap32(target_ip->__seq);
3344#else
3345 host_ip->__seq = tswap16(target_ip->__seq);
3346#endif
3eb6b044 3347 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3348 return 0;
3eb6b044
TS		 3349}
3350
579a97f7
FB		 3351static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3352 struct ipc_perm *host_ip)
3eb6b044
TS		 3353{
3354 struct target_ipc_perm *target_ip;
005eb2ae 3355 struct target_semid64_ds *target_sd;
3eb6b044 3356
579a97f7
FB		 3357 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3358 return -TARGET_EFAULT;
3eb6b044 3359 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3360 target_ip->__key = tswap32(host_ip->__key);
3361 target_ip->uid = tswap32(host_ip->uid);
3362 target_ip->gid = tswap32(host_ip->gid);
3363 target_ip->cuid = tswap32(host_ip->cuid);
3364 target_ip->cgid = tswap32(host_ip->cgid);
3365#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3366 target_ip->mode = tswap32(host_ip->mode);
3367#else
cbb21eed 3368 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3369#endif
3370#if defined(TARGET_PPC)
3371 target_ip->__seq = tswap32(host_ip->__seq);
3372#else
3373 target_ip->__seq = tswap16(host_ip->__seq);
3374#endif
3eb6b044 3375 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3376 return 0;
3eb6b044
TS		 3377}
3378
579a97f7
FB		 3379static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3380 abi_ulong target_addr)
3eb6b044 3381{
005eb2ae 3382 struct target_semid64_ds *target_sd;
3eb6b044 3383
579a97f7
FB		 3384 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3385 return -TARGET_EFAULT;
e5289087
AJ		 3386 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3387 return -TARGET_EFAULT;
cbb21eed
MB		 3388 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3389 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3390 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3391 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3392 return 0;
3eb6b044
TS		 3393}
3394
579a97f7
FB		 3395static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3396 struct semid_ds *host_sd)
3eb6b044 3397{
005eb2ae 3398 struct target_semid64_ds *target_sd;
3eb6b044 3399
579a97f7
FB		 3400 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3401 return -TARGET_EFAULT;
e5289087 3402 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3403 return -TARGET_EFAULT;
cbb21eed
MB		 3404 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3405 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3406 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3407 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3408 return 0;
3eb6b044
TS		 3409}
3410
e5289087
AJ		 3411struct target_seminfo {
3412 int semmap;
3413 int semmni;
3414 int semmns;
3415 int semmnu;
3416 int semmsl;
3417 int semopm;
3418 int semume;
3419 int semusz;
3420 int semvmx;
3421 int semaem;
3422};
3423
3424static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3425 struct seminfo *host_seminfo)
3426{
3427 struct target_seminfo *target_seminfo;
3428 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3429 return -TARGET_EFAULT;
3430 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3431 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3432 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3433 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3434 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3435 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3436 __put_user(host_seminfo->semume, &target_seminfo->semume);
3437 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3438 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3439 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3440 unlock_user_struct(target_seminfo, target_addr, 1);
3441 return 0;
3442}
3443
fa294816
TS		 3444union semun {
3445 int val;
3eb6b044 3446 struct semid_ds *buf;
fa294816 3447 unsigned short *array;
e5289087 3448 struct seminfo *__buf;
fa294816
TS		 3449};
3450
3eb6b044
TS		 3451union target_semun {
3452 int val;
e5289087
AJ		 3453 abi_ulong buf;
3454 abi_ulong array;
3455 abi_ulong __buf;
3eb6b044
TS		 3456};
3457
e5289087
AJ		 3458static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3459 abi_ulong target_addr)
3eb6b044 3460{
e5289087
AJ		 3461 int nsems;
3462 unsigned short *array;
3463 union semun semun;
3464 struct semid_ds semid_ds;
3465 int i, ret;
3eb6b044 3466
e5289087
AJ		 3467 semun.buf = &semid_ds;
3468
3469 ret = semctl(semid, 0, IPC_STAT, semun);
3470 if (ret == -1)
3471 return get_errno(ret);
3472
3473 nsems = semid_ds.sem_nsems;
3474
0e173b24 3475 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 3476 if (!*host_array) {
3477 return -TARGET_ENOMEM;
3478 }
e5289087
AJ		 3479 array = lock_user(VERIFY_READ, target_addr,
3480 nsems*sizeof(unsigned short), 1);
69d4c703 3481 if (!array) {
0e173b24 3482 g_free(*host_array);
e5289087 3483 return -TARGET_EFAULT;
69d4c703 3484 }
e5289087
AJ		 3485
3486 for(i=0; i<nsems; i++) {
3487 __get_user((*host_array)[i], &array[i]);
3eb6b044 3488 }
e5289087
AJ		 3489 unlock_user(array, target_addr, 0);
3490
579a97f7 3491 return 0;
3eb6b044
TS		 3492}
3493
e5289087
AJ		 3494static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3495 unsigned short **host_array)
3eb6b044 3496{
e5289087
AJ		 3497 int nsems;
3498 unsigned short *array;
3499 union semun semun;
3500 struct semid_ds semid_ds;
3501 int i, ret;
3eb6b044 3502
e5289087
AJ		 3503 semun.buf = &semid_ds;
3504
3505 ret = semctl(semid, 0, IPC_STAT, semun);
3506 if (ret == -1)
3507 return get_errno(ret);
3508
3509 nsems = semid_ds.sem_nsems;
3510
3511 array = lock_user(VERIFY_WRITE, target_addr,
3512 nsems*sizeof(unsigned short), 0);
3513 if (!array)
3514 return -TARGET_EFAULT;
3515
3516 for(i=0; i<nsems; i++) {
3517 __put_user((*host_array)[i], &array[i]);
3eb6b044 3518 }
0e173b24 3519 g_free(*host_array);
e5289087
AJ		 3520 unlock_user(array, target_addr, 1);
3521
579a97f7 3522 return 0;
3eb6b044
TS		 3523}
3524
e5289087 3525static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 3526 abi_ulong target_arg)
3eb6b044 3527{
d1c002b6 3528 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 3529 union semun arg;
3530 struct semid_ds dsarg;
7b8118e8 3531 unsigned short *array = NULL;
e5289087
AJ		 3532 struct seminfo seminfo;
3533 abi_long ret = -TARGET_EINVAL;
3534 abi_long err;
3535 cmd &= 0xff;
3eb6b044
TS		 3536
3537 switch( cmd ) {
3538 case GETVAL:
3eb6b044 3539 case SETVAL:
5464baec
TM		 3540 /* In 64 bit cross-endian situations, we will erroneously pick up
3541 * the wrong half of the union for the "val" element. To rectify
3542 * this, the entire 8-byte structure is byteswapped, followed by
3543 * a swap of the 4 byte val field. In other cases, the data is
3544 * already in proper host byte order. */
3545 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3546 target_su.buf = tswapal(target_su.buf);
3547 arg.val = tswap32(target_su.val);
3548 } else {
3549 arg.val = target_su.val;
3550 }
e5289087 3551 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 3552 break;
3553 case GETALL:
3eb6b044 3554 case SETALL:
e5289087
AJ		 3555 err = target_to_host_semarray(semid, &array, target_su.array);
3556 if (err)
3557 return err;
3558 arg.array = array;
3559 ret = get_errno(semctl(semid, semnum, cmd, arg));
3560 err = host_to_target_semarray(semid, target_su.array, &array);
3561 if (err)
3562 return err;
3eb6b044
TS		 3563 break;
3564 case IPC_STAT:
3eb6b044 3565 case IPC_SET:
e5289087
AJ		 3566 case SEM_STAT:
3567 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3568 if (err)
3569 return err;
3570 arg.buf = &dsarg;
3571 ret = get_errno(semctl(semid, semnum, cmd, arg));
3572 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3573 if (err)
3574 return err;
3575 break;
3576 case IPC_INFO:
3577 case SEM_INFO:
3578 arg.__buf = &seminfo;
3579 ret = get_errno(semctl(semid, semnum, cmd, arg));
3580 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3581 if (err)
3582 return err;
3583 break;
3584 case IPC_RMID:
3585 case GETPID:
3586 case GETNCNT:
3587 case GETZCNT:
3588 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 3589 break;
3eb6b044
TS		 3590 }
3591
3592 return ret;
3593}
3594
e5289087
AJ		 3595struct target_sembuf {
3596 unsigned short sem_num;
3597 short sem_op;
3598 short sem_flg;
3599};
3600
3601static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3602 abi_ulong target_addr,
3603 unsigned nsops)
3604{
3605 struct target_sembuf *target_sembuf;
3606 int i;
3607
3608 target_sembuf = lock_user(VERIFY_READ, target_addr,
3609 nsops*sizeof(struct target_sembuf), 1);
3610 if (!target_sembuf)
3611 return -TARGET_EFAULT;
3612
3613 for(i=0; i<nsops; i++) {
3614 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3615 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3616 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3617 }
3618
3619 unlock_user(target_sembuf, target_addr, 0);
3620
3621 return 0;
3622}
3623
3624static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3625{
3626 struct sembuf sops[nsops];
524fa340 3627 abi_long ret;
e5289087
AJ		 3628
3629 if (target_to_host_sembuf(sops, ptr, nsops))
3630 return -TARGET_EFAULT;
3631
524fa340
LV		 3632 ret = -TARGET_ENOSYS;
3633#ifdef __NR_semtimedop
3634 ret = get_errno(safe_semtimedop(semid, sops, nsops, NULL));
3635#endif
3636#ifdef __NR_ipc
3637 if (ret == -TARGET_ENOSYS) {
3638 ret = get_errno(safe_ipc(IPCOP_semtimedop, semid, nsops, 0, sops, 0));
3639 }
3640#endif
3641 return ret;
e5289087
AJ		 3642}
3643
1bc012f6
TS		 3644struct target_msqid_ds
3645{
1c54ff97
AJ		 3646 struct target_ipc_perm msg_perm;
3647 abi_ulong msg_stime;
3648#if TARGET_ABI_BITS == 32
3649 abi_ulong __unused1;
3650#endif
3651 abi_ulong msg_rtime;
3652#if TARGET_ABI_BITS == 32
3653 abi_ulong __unused2;
3654#endif
3655 abi_ulong msg_ctime;
3656#if TARGET_ABI_BITS == 32
3657 abi_ulong __unused3;
3658#endif
3659 abi_ulong __msg_cbytes;
3660 abi_ulong msg_qnum;
3661 abi_ulong msg_qbytes;
3662 abi_ulong msg_lspid;
3663 abi_ulong msg_lrpid;
3664 abi_ulong __unused4;
3665 abi_ulong __unused5;
1bc012f6
TS		 3666};
3667
579a97f7
FB		 3668static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3669 abi_ulong target_addr)
1bc012f6
TS		 3670{
3671 struct target_msqid_ds *target_md;
3672
579a97f7
FB		 3673 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3674 return -TARGET_EFAULT;
1c54ff97
AJ		 3675 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3676 return -TARGET_EFAULT;
cbb21eed
MB		 3677 host_md->msg_stime = tswapal(target_md->msg_stime);
3678 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3679 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3680 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3681 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3682 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3683 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3684 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 3685 unlock_user_struct(target_md, target_addr, 0);
579a97f7 3686 return 0;
1bc012f6
TS		 3687}
3688
579a97f7
FB		 3689static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3690 struct msqid_ds *host_md)
1bc012f6
TS		 3691{
3692 struct target_msqid_ds *target_md;
3693
579a97f7
FB		 3694 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3695 return -TARGET_EFAULT;
1c54ff97
AJ		 3696 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3697 return -TARGET_EFAULT;
cbb21eed
MB		 3698 target_md->msg_stime = tswapal(host_md->msg_stime);
3699 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3700 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3701 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3702 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3703 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3704 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3705 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 3706 unlock_user_struct(target_md, target_addr, 1);
579a97f7 3707 return 0;
1bc012f6
TS		 3708}
3709
1c54ff97
AJ		 3710struct target_msginfo {
3711 int msgpool;
3712 int msgmap;
3713 int msgmax;
3714 int msgmnb;
3715 int msgmni;
3716 int msgssz;
3717 int msgtql;
3718 unsigned short int msgseg;
3719};
3720
3721static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3722 struct msginfo *host_msginfo)
3723{
3724 struct target_msginfo *target_msginfo;
3725 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3726 return -TARGET_EFAULT;
3727 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3728 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3729 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3730 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3731 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3732 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3733 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3734 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3735 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 3736 return 0;
1c54ff97
AJ		 3737}
3738
3739static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 3740{
3741 struct msqid_ds dsarg;
1c54ff97
AJ		 3742 struct msginfo msginfo;
3743 abi_long ret = -TARGET_EINVAL;
3744
3745 cmd &= 0xff;
3746
3747 switch (cmd) {
1bc012f6
TS		 3748 case IPC_STAT:
3749 case IPC_SET:
1c54ff97
AJ		 3750 case MSG_STAT:
3751 if (target_to_host_msqid_ds(&dsarg,ptr))
3752 return -TARGET_EFAULT;
3753 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3754 if (host_to_target_msqid_ds(ptr,&dsarg))
3755 return -TARGET_EFAULT;
3756 break;
3757 case IPC_RMID:
3758 ret = get_errno(msgctl(msgid, cmd, NULL));
3759 break;
3760 case IPC_INFO:
3761 case MSG_INFO:
3762 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3763 if (host_to_target_msginfo(ptr, &msginfo))
3764 return -TARGET_EFAULT;
3765 break;
1bc012f6 3766 }
1c54ff97 3767
1bc012f6
TS		 3768 return ret;
3769}
3770
3771struct target_msgbuf {
1c54ff97
AJ		 3772 abi_long mtype;
3773 char mtext[1];
1bc012f6
TS		 3774};
3775
992f48a0 3776static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 3777 ssize_t msgsz, int msgflg)
1bc012f6
TS		 3778{
3779 struct target_msgbuf *target_mb;
3780 struct msgbuf *host_mb;
992f48a0 3781 abi_long ret = 0;
1bc012f6 3782
edcc5f9d
TM		 3783 if (msgsz < 0) {
3784 return -TARGET_EINVAL;
3785 }
3786
579a97f7
FB		 3787 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3788 return -TARGET_EFAULT;
0e173b24 3789 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 3790 if (!host_mb) {
3791 unlock_user_struct(target_mb, msgp, 0);
3792 return -TARGET_ENOMEM;
3793 }
cbb21eed 3794 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 3795 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
524fa340
LV		 3796 ret = -TARGET_ENOSYS;
3797#ifdef __NR_msgsnd
89f9fe44 3798 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
524fa340
LV		 3799#endif
3800#ifdef __NR_ipc
3801 if (ret == -TARGET_ENOSYS) {
3802 ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
3803 host_mb, 0));
3804 }
3805#endif
0e173b24 3806 g_free(host_mb);
1bc012f6
TS		 3807 unlock_user_struct(target_mb, msgp, 0);
3808
3809 return ret;
3810}
3811
992f48a0 3812static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 3813 ssize_t msgsz, abi_long msgtyp,
992f48a0 3814 int msgflg)
1bc012f6
TS		 3815{
3816 struct target_msgbuf *target_mb;
579a97f7 3817 char *target_mtext;
1bc012f6 3818 struct msgbuf *host_mb;
992f48a0 3819 abi_long ret = 0;
1bc012f6 3820
99874f65
PM		 3821 if (msgsz < 0) {
3822 return -TARGET_EINVAL;
3823 }
3824
579a97f7
FB		 3825 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3826 return -TARGET_EFAULT;
1c54ff97 3827
415d8471
PM		 3828 host_mb = g_try_malloc(msgsz + sizeof(long));
3829 if (!host_mb) {
3830 ret = -TARGET_ENOMEM;
3831 goto end;
3832 }
524fa340
LV		 3833 ret = -TARGET_ENOSYS;
3834#ifdef __NR_msgrcv
89f9fe44 3835 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
524fa340
LV		 3836#endif
3837#ifdef __NR_ipc
3838 if (ret == -TARGET_ENOSYS) {
3839 ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz,
3840 msgflg, host_mb, msgtyp));
3841 }
3842#endif
1c54ff97 3843
579a97f7
FB		 3844 if (ret > 0) {
3845 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3846 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3847 if (!target_mtext) {
3848 ret = -TARGET_EFAULT;
3849 goto end;
3850 }
1c54ff97 3851 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 3852 unlock_user(target_mtext, target_mtext_addr, ret);
3853 }
1c54ff97 3854
cbb21eed 3855 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 3856
579a97f7
FB		 3857end:
3858 if (target_mb)
3859 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 3860 g_free(host_mb);
1bc012f6
TS		 3861 return ret;
3862}
3863
88a8c984
RV		 3864static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3865 abi_ulong target_addr)
3866{
3867 struct target_shmid_ds *target_sd;
3868
3869 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3870 return -TARGET_EFAULT;
3871 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3872 return -TARGET_EFAULT;
3873 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3874 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3875 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3876 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3877 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3878 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3879 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3880 unlock_user_struct(target_sd, target_addr, 0);
3881 return 0;
3882}
3883
3884static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3885 struct shmid_ds *host_sd)
3886{
3887 struct target_shmid_ds *target_sd;
3888
3889 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3890 return -TARGET_EFAULT;
3891 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3892 return -TARGET_EFAULT;
3893 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3894 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3895 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3896 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3897 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3898 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3899 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3900 unlock_user_struct(target_sd, target_addr, 1);
3901 return 0;
3902}
3903
3904struct target_shminfo {
3905 abi_ulong shmmax;
3906 abi_ulong shmmin;
3907 abi_ulong shmmni;
3908 abi_ulong shmseg;
3909 abi_ulong shmall;
3910};
3911
3912static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3913 struct shminfo *host_shminfo)
3914{
3915 struct target_shminfo *target_shminfo;
3916 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3917 return -TARGET_EFAULT;
3918 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3919 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3920 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3921 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3922 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3923 unlock_user_struct(target_shminfo, target_addr, 1);
3924 return 0;
3925}
3926
3927struct target_shm_info {
3928 int used_ids;
3929 abi_ulong shm_tot;
3930 abi_ulong shm_rss;
3931 abi_ulong shm_swp;
3932 abi_ulong swap_attempts;
3933 abi_ulong swap_successes;
3934};
3935
3936static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3937 struct shm_info *host_shm_info)
3938{
3939 struct target_shm_info *target_shm_info;
3940 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3941 return -TARGET_EFAULT;
3942 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3943 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3944 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3945 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3946 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3947 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3948 unlock_user_struct(target_shm_info, target_addr, 1);
3949 return 0;
3950}
3951
3952static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3953{
3954 struct shmid_ds dsarg;
3955 struct shminfo shminfo;
3956 struct shm_info shm_info;
3957 abi_long ret = -TARGET_EINVAL;
3958
3959 cmd &= 0xff;
3960
3961 switch(cmd) {
3962 case IPC_STAT:
3963 case IPC_SET:
3964 case SHM_STAT:
3965 if (target_to_host_shmid_ds(&dsarg, buf))
3966 return -TARGET_EFAULT;
3967 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3968 if (host_to_target_shmid_ds(buf, &dsarg))
3969 return -TARGET_EFAULT;
3970 break;
3971 case IPC_INFO:
3972 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3973 if (host_to_target_shminfo(buf, &shminfo))
3974 return -TARGET_EFAULT;
3975 break;
3976 case SHM_INFO:
3977 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3978 if (host_to_target_shm_info(buf, &shm_info))
3979 return -TARGET_EFAULT;
3980 break;
3981 case IPC_RMID:
3982 case SHM_LOCK:
3983 case SHM_UNLOCK:
3984 ret = get_errno(shmctl(shmid, cmd, NULL));
3985 break;
3986 }
3987
3988 return ret;
3989}
3990
ee8e7614
PM		 3991#ifndef TARGET_FORCE_SHMLBA
3992/* For most architectures, SHMLBA is the same as the page size;
3993 * some architectures have larger values, in which case they should
3994 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
3995 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
3996 * and defining its own value for SHMLBA.
3997 *
3998 * The kernel also permits SHMLBA to be set by the architecture to a
3999 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
4000 * this means that addresses are rounded to the large size if
4001 * SHM_RND is set but addresses not aligned to that size are not rejected
4002 * as long as they are at least page-aligned. Since the only architecture
4003 * which uses this is ia64 this code doesn't provide for that oddity.
4004 */
4005static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
4006{
4007 return TARGET_PAGE_SIZE;
4008}
4009#endif
4010
4011static inline abi_ulong do_shmat(CPUArchState *cpu_env,
4012 int shmid, abi_ulong shmaddr, int shmflg)
88a8c984
RV		 4013{
4014 abi_long raddr;
4015 void *host_raddr;
4016 struct shmid_ds shm_info;
4017 int i,ret;
ee8e7614 4018 abi_ulong shmlba;
88a8c984
RV		 4019
4020 /* find out the length of the shared memory segment */
4021 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
4022 if (is_error(ret)) {
4023 /* can't get length, bail out */
4024 return ret;
4025 }
4026
ee8e7614
PM		 4027 shmlba = target_shmlba(cpu_env);
4028
4029 if (shmaddr & (shmlba - 1)) {
4030 if (shmflg & SHM_RND) {
4031 shmaddr &= ~(shmlba - 1);
4032 } else {
4033 return -TARGET_EINVAL;
4034 }
4035 }
ebf9a363
MF		 4036 if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
4037 return -TARGET_EINVAL;
4038 }
ee8e7614 4039
88a8c984
RV		 4040 mmap_lock();
4041
4042 if (shmaddr)
4043 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
4044 else {
4045 abi_ulong mmap_start;
4046
30ab9ef2
RH		 4047 /* In order to use the host shmat, we need to honor host SHMLBA. */
4048 mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba));
88a8c984
RV		 4049
4050 if (mmap_start == -1) {
4051 errno = ENOMEM;
4052 host_raddr = (void *)-1;
4053 } else
4054 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
4055 }
4056
4057 if (host_raddr == (void *)-1) {
4058 mmap_unlock();
4059 return get_errno((long)host_raddr);
4060 }
4061 raddr=h2g((unsigned long)host_raddr);
4062
4063 page_set_flags(raddr, raddr + shm_info.shm_segsz,
4064 PAGE_VALID | PAGE_READ |
4065 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
4066
4067 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 4068 if (!shm_regions[i].in_use) {
4069 shm_regions[i].in_use = true;
88a8c984
RV		 4070 shm_regions[i].start = raddr;
4071 shm_regions[i].size = shm_info.shm_segsz;
4072 break;
4073 }
4074 }
4075
4076 mmap_unlock();
4077 return raddr;
4078
4079}
4080
4081static inline abi_long do_shmdt(abi_ulong shmaddr)
4082{
4083 int i;
3c5f6a5f
MF		 4084 abi_long rv;
4085
4086 mmap_lock();
88a8c984
RV		 4087
4088 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 4089 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
4090 shm_regions[i].in_use = false;
e00ac249 4091 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 4092 break;
4093 }
4094 }
3c5f6a5f 4095 rv = get_errno(shmdt(g2h(shmaddr)));
88a8c984 4096
3c5f6a5f 4097 mmap_unlock();
88a8c984 4098
3c5f6a5f 4099 return rv;
88a8c984
RV		 4100}
4101
1c54ff97 4102#ifdef TARGET_NR_ipc
53a5960a 4103/* ??? This only works with linear mappings. */
0da46a6e 4104/* do_ipc() must return target values and target errnos. */
ee8e7614
PM		 4105static abi_long do_ipc(CPUArchState *cpu_env,
4106 unsigned int call, abi_long first,
37ed0956 4107 abi_long second, abi_long third,
992f48a0 4108 abi_long ptr, abi_long fifth)
8853f86e
FB		 4109{
4110 int version;
992f48a0 4111 abi_long ret = 0;
8853f86e
FB		 4112
4113 version = call >> 16;
4114 call &= 0xffff;
4115
4116 switch (call) {
fa294816 4117 case IPCOP_semop:
e5289087 4118 ret = do_semop(first, ptr, second);
fa294816
TS		 4119 break;
4120
4121 case IPCOP_semget:
4122 ret = get_errno(semget(first, second, third));
4123 break;
4124
5d2fa8eb
TM		 4125 case IPCOP_semctl: {
4126 /* The semun argument to semctl is passed by value, so dereference the
4127 * ptr argument. */
4128 abi_ulong atptr;
37ed0956 4129 get_user_ual(atptr, ptr);
d1c002b6 4130 ret = do_semctl(first, second, third, atptr);
fa294816 4131 break;
5d2fa8eb 4132 }
d96372ef 4133
1c54ff97
AJ		 4134 case IPCOP_msgget:
4135 ret = get_errno(msgget(first, second));
4136 break;
d96372ef 4137
1c54ff97
AJ		 4138 case IPCOP_msgsnd:
4139 ret = do_msgsnd(first, ptr, second, third);
4140 break;
d96372ef 4141
1c54ff97
AJ		 4142 case IPCOP_msgctl:
4143 ret = do_msgctl(first, second, ptr);
4144 break;
d96372ef 4145
1c54ff97
AJ		 4146 case IPCOP_msgrcv:
4147 switch (version) {
4148 case 0:
4149 {
4150 struct target_ipc_kludge {
4151 abi_long msgp;
4152 abi_long msgtyp;
4153 } *tmp;
4154
4155 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
4156 ret = -TARGET_EFAULT;
4157 break;
4158 }
d96372ef 4159
79dd77de 4160 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 4161
1c54ff97
AJ		 4162 unlock_user_struct(tmp, ptr, 0);
4163 break;
4164 }
4165 default:
4166 ret = do_msgrcv(first, ptr, second, fifth, third);
4167 }
4168 break;
d96372ef 4169
8853f86e 4170 case IPCOP_shmat:
88a8c984
RV		 4171 switch (version) {
4172 default:
5a4a898d
FB		 4173 {
4174 abi_ulong raddr;
ee8e7614 4175 raddr = do_shmat(cpu_env, first, ptr, second);
88a8c984
RV		 4176 if (is_error(raddr))
4177 return get_errno(raddr);
2f619698 4178 if (put_user_ual(raddr, third))
5a4a898d 4179 return -TARGET_EFAULT;
88a8c984
RV		 4180 break;
4181 }
4182 case 1:
4183 ret = -TARGET_EINVAL;
4184 break;
5a4a898d 4185 }
8853f86e
FB		 4186 break;
4187 case IPCOP_shmdt:
88a8c984 4188 ret = do_shmdt(ptr);
8853f86e
FB		 4189 break;
4190
4191 case IPCOP_shmget:
4192 /* IPC_* flag values are the same on all linux platforms */
4193 ret = get_errno(shmget(first, second, third));
4194 break;
4195
4196 /* IPC_* and SHM_* command values are the same on all linux platforms */
4197 case IPCOP_shmctl:
a2926784 4198 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4199 break;
4200 default:
32407103 4201 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 4202 ret = -TARGET_ENOSYS;
8853f86e
FB		 4203 break;
4204 }
4205 return ret;
4206}
32407103 4207#endif
8853f86e 4208
31e31b8a 4209/* kernel structure types definitions */
31e31b8a 4210
001faf32 4211#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4212#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4213enum {
4214#include "syscall_types.h"
8be656b8 4215STRUCT_MAX
31e31b8a
FB		 4216};
4217#undef STRUCT
4218#undef STRUCT_SPECIAL
4219
001faf32 4220#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4221#define STRUCT_SPECIAL(name)
4222#include "syscall_types.h"
4223#undef STRUCT
4224#undef STRUCT_SPECIAL
4225
d2ef05bb
PM		 4226typedef struct IOCTLEntry IOCTLEntry;
4227
4228typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4229 int fd, int cmd, abi_long arg);
d2ef05bb
PM		 4230
4231struct IOCTLEntry {
9c6bf9c7 4232 int target_cmd;
2ab83ea7 4233 unsigned int host_cmd;
31e31b8a
FB		 4234 const char *name;
4235 int access;
d2ef05bb 4236 do_ioctl_fn *do_ioctl;
1a9353d2 4237 const argtype arg_type[5];
d2ef05bb 4238};
31e31b8a
FB		 4239
4240#define IOC_R 0x0001
4241#define IOC_W 0x0002
4242#define IOC_RW (IOC_R | IOC_W)
4243
4244#define MAX_STRUCT_SIZE 4096
4245
dace20dc 4246#ifdef CONFIG_FIEMAP
285da2b9
PM		 4247/* So fiemap access checks don't overflow on 32 bit systems.
4248 * This is very slightly smaller than the limit imposed by
4249 * the underlying kernel.
4250 */
4251#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4252 / sizeof(struct fiemap_extent))
4253
4254static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4255 int fd, int cmd, abi_long arg)
285da2b9
PM		 4256{
4257 /* The parameter for this ioctl is a struct fiemap followed
4258 * by an array of struct fiemap_extent whose size is set
4259 * in fiemap->fm_extent_count. The array is filled in by the
4260 * ioctl.
4261 */
4262 int target_size_in, target_size_out;
4263 struct fiemap *fm;
4264 const argtype *arg_type = ie->arg_type;
4265 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4266 void *argptr, *p;
4267 abi_long ret;
4268 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4269 uint32_t outbufsz;
4270 int free_fm = 0;
4271
4272 assert(arg_type[0] == TYPE_PTR);
4273 assert(ie->access == IOC_RW);
4274 arg_type++;
4275 target_size_in = thunk_type_size(arg_type, 0);
4276 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4277 if (!argptr) {
4278 return -TARGET_EFAULT;
4279 }
4280 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4281 unlock_user(argptr, arg, 0);
4282 fm = (struct fiemap *)buf_temp;
4283 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4284 return -TARGET_EINVAL;
4285 }
4286
4287 outbufsz = sizeof (*fm) +
4288 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4289
4290 if (outbufsz > MAX_STRUCT_SIZE) {
4291 /* We can't fit all the extents into the fixed size buffer.
4292 * Allocate one that is large enough and use it instead.
4293 */
0e173b24 4294 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4295 if (!fm) {
4296 return -TARGET_ENOMEM;
4297 }
4298 memcpy(fm, buf_temp, sizeof(struct fiemap));
4299 free_fm = 1;
4300 }
49ca6f3e 4301 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
285da2b9
PM		 4302 if (!is_error(ret)) {
4303 target_size_out = target_size_in;
4304 /* An extent_count of 0 means we were only counting the extents
4305 * so there are no structs to copy
4306 */
4307 if (fm->fm_extent_count != 0) {
4308 target_size_out += fm->fm_mapped_extents * extent_size;
4309 }
4310 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4311 if (!argptr) {
4312 ret = -TARGET_EFAULT;
4313 } else {
4314 /* Convert the struct fiemap */
4315 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4316 if (fm->fm_extent_count != 0) {
4317 p = argptr + target_size_in;
4318 /* ...and then all the struct fiemap_extents */
4319 for (i = 0; i < fm->fm_mapped_extents; i++) {
4320 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4321 THUNK_TARGET);
4322 p += extent_size;
4323 }
4324 }
4325 unlock_user(argptr, arg, target_size_out);
4326 }
4327 }
4328 if (free_fm) {
0e173b24 4329 g_free(fm);
285da2b9
PM		 4330 }
4331 return ret;
4332}
dace20dc 4333#endif
285da2b9 4334
059c2f2c 4335static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4336 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4337{
4338 const argtype *arg_type = ie->arg_type;
4339 int target_size;
4340 void *argptr;
4341 int ret;
4342 struct ifconf *host_ifconf;
4343 uint32_t outbufsz;
4344 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4345 int target_ifreq_size;
4346 int nb_ifreq;
4347 int free_buf = 0;
4348 int i;
4349 int target_ifc_len;
4350 abi_long target_ifc_buf;
4351 int host_ifc_len;
4352 char *host_ifc_buf;
4353
4354 assert(arg_type[0] == TYPE_PTR);
4355 assert(ie->access == IOC_RW);
4356
4357 arg_type++;
4358 target_size = thunk_type_size(arg_type, 0);
4359
4360 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4361 if (!argptr)
4362 return -TARGET_EFAULT;
4363 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4364 unlock_user(argptr, arg, 0);
4365
4366 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
059c2f2c 4367 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
059c2f2c 4368 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
059c2f2c 4369
22e4a267
KL		 4370 if (target_ifc_buf != 0) {
4371 target_ifc_len = host_ifconf->ifc_len;
4372 nb_ifreq = target_ifc_len / target_ifreq_size;
4373 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4374
4375 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4376 if (outbufsz > MAX_STRUCT_SIZE) {
4377 /*
4378 * We can't fit all the extents into the fixed size buffer.
4379 * Allocate one that is large enough and use it instead.
4380 */
4381 host_ifconf = malloc(outbufsz);
4382 if (!host_ifconf) {
4383 return -TARGET_ENOMEM;
4384 }
4385 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4386 free_buf = 1;
059c2f2c 4387 }
22e4a267 4388 host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
059c2f2c 4389
22e4a267
KL		 4390 host_ifconf->ifc_len = host_ifc_len;
4391 } else {
4392 host_ifc_buf = NULL;
4393 }
059c2f2c
LV		 4394 host_ifconf->ifc_buf = host_ifc_buf;
4395
49ca6f3e 4396 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
059c2f2c
LV		 4397 if (!is_error(ret)) {
4398 /* convert host ifc_len to target ifc_len */
4399
4400 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4401 target_ifc_len = nb_ifreq * target_ifreq_size;
4402 host_ifconf->ifc_len = target_ifc_len;
4403
4404 /* restore target ifc_buf */
4405
4406 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4407
4408 /* copy struct ifconf to target user */
4409
4410 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4411 if (!argptr)
4412 return -TARGET_EFAULT;
4413 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4414 unlock_user(argptr, arg, target_size);
4415
22e4a267
KL		 4416 if (target_ifc_buf != 0) {
4417 /* copy ifreq[] to target user */
4418 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4419 for (i = 0; i < nb_ifreq ; i++) {
4420 thunk_convert(argptr + i * target_ifreq_size,
4421 host_ifc_buf + i * sizeof(struct ifreq),
4422 ifreq_arg_type, THUNK_TARGET);
4423 }
4424 unlock_user(argptr, target_ifc_buf, target_ifc_len);
059c2f2c 4425 }
059c2f2c
LV		 4426 }
4427
4428 if (free_buf) {
4429 free(host_ifconf);
4430 }
4431
4432 return ret;
4433}
4434
a133367e
CT		 4435#if defined(CONFIG_USBFS)
4436#if HOST_LONG_BITS > 64
4437#error USBDEVFS thunks do not support >64 bit hosts yet.
4438#endif
4439struct live_urb {
4440 uint64_t target_urb_adr;
4441 uint64_t target_buf_adr;
4442 char *target_buf_ptr;
4443 struct usbdevfs_urb host_urb;
4444};
4445
4446static GHashTable *usbdevfs_urb_hashtable(void)
4447{
4448 static GHashTable *urb_hashtable;
4449
4450 if (!urb_hashtable) {
4451 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
4452 }
4453 return urb_hashtable;
4454}
4455
4456static void urb_hashtable_insert(struct live_urb *urb)
4457{
4458 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4459 g_hash_table_insert(urb_hashtable, urb, urb);
4460}
4461
4462static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
4463{
4464 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4465 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
4466}
4467
4468static void urb_hashtable_remove(struct live_urb *urb)
4469{
4470 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4471 g_hash_table_remove(urb_hashtable, urb);
4472}
4473
4474static abi_long
4475do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
4476 int fd, int cmd, abi_long arg)
4477{
4478 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
4479 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
4480 struct live_urb *lurb;
4481 void *argptr;
4482 uint64_t hurb;
4483 int target_size;
4484 uintptr_t target_urb_adr;
4485 abi_long ret;
4486
4487 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
4488
4489 memset(buf_temp, 0, sizeof(uint64_t));
4490 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4491 if (is_error(ret)) {
4492 return ret;
4493 }
4494
4495 memcpy(&hurb, buf_temp, sizeof(uint64_t));
4496 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
4497 if (!lurb->target_urb_adr) {
4498 return -TARGET_EFAULT;
4499 }
4500 urb_hashtable_remove(lurb);
4501 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
4502 lurb->host_urb.buffer_length);
4503 lurb->target_buf_ptr = NULL;
4504
4505 /* restore the guest buffer pointer */
4506 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
4507
4508 /* update the guest urb struct */
4509 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
4510 if (!argptr) {
4511 g_free(lurb);
4512 return -TARGET_EFAULT;
4513 }
4514 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
4515 unlock_user(argptr, lurb->target_urb_adr, target_size);
4516
4517 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
4518 /* write back the urb handle */
4519 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4520 if (!argptr) {
4521 g_free(lurb);
4522 return -TARGET_EFAULT;
4523 }
4524
4525 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
4526 target_urb_adr = lurb->target_urb_adr;
4527 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
4528 unlock_user(argptr, arg, target_size);
4529
4530 g_free(lurb);
4531 return ret;
4532}
4533
4534static abi_long
4535do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
4536 uint8_t *buf_temp __attribute__((unused)),
4537 int fd, int cmd, abi_long arg)
4538{
4539 struct live_urb *lurb;
4540
4541 /* map target address back to host URB with metadata. */
4542 lurb = urb_hashtable_lookup(arg);
4543 if (!lurb) {
4544 return -TARGET_EFAULT;
4545 }
4546 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4547}
4548
4549static abi_long
4550do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
4551 int fd, int cmd, abi_long arg)
4552{
4553 const argtype *arg_type = ie->arg_type;
4554 int target_size;
4555 abi_long ret;
4556 void *argptr;
4557 int rw_dir;
4558 struct live_urb *lurb;
4559
4560 /*
4561 * each submitted URB needs to map to a unique ID for the
4562 * kernel, and that unique ID needs to be a pointer to
4563 * host memory. hence, we need to malloc for each URB.
4564 * isochronous transfers have a variable length struct.
4565 */
4566 arg_type++;
4567 target_size = thunk_type_size(arg_type, THUNK_TARGET);
4568
4569 /* construct host copy of urb and metadata */
4570 lurb = g_try_malloc0(sizeof(struct live_urb));
4571 if (!lurb) {
4572 return -TARGET_ENOMEM;
4573 }
4574
4575 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4576 if (!argptr) {
4577 g_free(lurb);
4578 return -TARGET_EFAULT;
4579 }
4580 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
4581 unlock_user(argptr, arg, 0);
4582
4583 lurb->target_urb_adr = arg;
4584 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
4585
4586 /* buffer space used depends on endpoint type so lock the entire buffer */
4587 /* control type urbs should check the buffer contents for true direction */
4588 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
4589 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
4590 lurb->host_urb.buffer_length, 1);
4591 if (lurb->target_buf_ptr == NULL) {
4592 g_free(lurb);
4593 return -TARGET_EFAULT;
4594 }
4595
4596 /* update buffer pointer in host copy */
4597 lurb->host_urb.buffer = lurb->target_buf_ptr;
4598
4599 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4600 if (is_error(ret)) {
4601 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
4602 g_free(lurb);
4603 } else {
4604 urb_hashtable_insert(lurb);
4605 }
4606
4607 return ret;
4608}
4609#endif /* CONFIG_USBFS */
4610
56e904ec 4611static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4612 int cmd, abi_long arg)
56e904ec
AG		 4613{
4614 void *argptr;
4615 struct dm_ioctl *host_dm;
4616 abi_long guest_data;
4617 uint32_t guest_data_size;
4618 int target_size;
4619 const argtype *arg_type = ie->arg_type;
4620 abi_long ret;
4621 void *big_buf = NULL;
4622 char *host_data;
4623
4624 arg_type++;
4625 target_size = thunk_type_size(arg_type, 0);
4626 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4627 if (!argptr) {
4628 ret = -TARGET_EFAULT;
4629 goto out;
4630 }
4631 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4632 unlock_user(argptr, arg, 0);
4633
4634 /* buf_temp is too small, so fetch things into a bigger buffer */
4635 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4636 memcpy(big_buf, buf_temp, target_size);
4637 buf_temp = big_buf;
4638 host_dm = big_buf;
4639
4640 guest_data = arg + host_dm->data_start;
4641 if ((guest_data - arg) < 0) {
f9757b1d 4642 ret = -TARGET_EINVAL;
56e904ec
AG		 4643 goto out;
4644 }
4645 guest_data_size = host_dm->data_size - host_dm->data_start;
4646 host_data = (char*)host_dm + host_dm->data_start;
4647
4648 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3211215e
PM		 4649 if (!argptr) {
4650 ret = -TARGET_EFAULT;
4651 goto out;
4652 }
4653
56e904ec
AG		 4654 switch (ie->host_cmd) {
4655 case DM_REMOVE_ALL:
4656 case DM_LIST_DEVICES:
4657 case DM_DEV_CREATE:
4658 case DM_DEV_REMOVE:
4659 case DM_DEV_SUSPEND:
4660 case DM_DEV_STATUS:
4661 case DM_DEV_WAIT:
4662 case DM_TABLE_STATUS:
4663 case DM_TABLE_CLEAR:
4664 case DM_TABLE_DEPS:
4665 case DM_LIST_VERSIONS:
4666 /* no input data */
4667 break;
4668 case DM_DEV_RENAME:
4669 case DM_DEV_SET_GEOMETRY:
4670 /* data contains only strings */
4671 memcpy(host_data, argptr, guest_data_size);
4672 break;
4673 case DM_TARGET_MSG:
4674 memcpy(host_data, argptr, guest_data_size);
4675 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4676 break;
4677 case DM_TABLE_LOAD:
4678 {
4679 void *gspec = argptr;
4680 void *cur_data = host_data;
4681 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4682 int spec_size = thunk_type_size(arg_type, 0);
4683 int i;
4684
4685 for (i = 0; i < host_dm->target_count; i++) {
4686 struct dm_target_spec *spec = cur_data;
4687 uint32_t next;
4688 int slen;
4689
4690 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4691 slen = strlen((char*)gspec + spec_size) + 1;
4692 next = spec->next;
4693 spec->next = sizeof(*spec) + slen;
4694 strcpy((char*)&spec[1], gspec + spec_size);
4695 gspec += next;
4696 cur_data += spec->next;
4697 }
4698 break;
4699 }
4700 default:
4701 ret = -TARGET_EINVAL;
dec0473d 4702 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4703 goto out;
4704 }
4705 unlock_user(argptr, guest_data, 0);
4706
49ca6f3e 4707 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
56e904ec
AG		 4708 if (!is_error(ret)) {
4709 guest_data = arg + host_dm->data_start;
4710 guest_data_size = host_dm->data_size - host_dm->data_start;
4711 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4712 switch (ie->host_cmd) {
4713 case DM_REMOVE_ALL:
4714 case DM_DEV_CREATE:
4715 case DM_DEV_REMOVE:
4716 case DM_DEV_RENAME:
4717 case DM_DEV_SUSPEND:
4718 case DM_DEV_STATUS:
4719 case DM_TABLE_LOAD:
4720 case DM_TABLE_CLEAR:
4721 case DM_TARGET_MSG:
4722 case DM_DEV_SET_GEOMETRY:
4723 /* no return data */
4724 break;
4725 case DM_LIST_DEVICES:
4726 {
4727 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4728 uint32_t remaining_data = guest_data_size;
4729 void *cur_data = argptr;
4730 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4731 int nl_size = 12; /* can't use thunk_size due to alignment */
4732
4733 while (1) {
4734 uint32_t next = nl->next;
4735 if (next) {
4736 nl->next = nl_size + (strlen(nl->name) + 1);
4737 }
4738 if (remaining_data < nl->next) {
4739 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4740 break;
4741 }
4742 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4743 strcpy(cur_data + nl_size, nl->name);
4744 cur_data += nl->next;
4745 remaining_data -= nl->next;
4746 if (!next) {
4747 break;
4748 }
4749 nl = (void*)nl + next;
4750 }
4751 break;
4752 }
4753 case DM_DEV_WAIT:
4754 case DM_TABLE_STATUS:
4755 {
4756 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4757 void *cur_data = argptr;
4758 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4759 int spec_size = thunk_type_size(arg_type, 0);
4760 int i;
4761
4762 for (i = 0; i < host_dm->target_count; i++) {
4763 uint32_t next = spec->next;
4764 int slen = strlen((char*)&spec[1]) + 1;
4765 spec->next = (cur_data - argptr) + spec_size + slen;
4766 if (guest_data_size < spec->next) {
4767 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4768 break;
4769 }
4770 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4771 strcpy(cur_data + spec_size, (char*)&spec[1]);
4772 cur_data = argptr + spec->next;
4773 spec = (void*)host_dm + host_dm->data_start + next;
4774 }
4775 break;
4776 }
4777 case DM_TABLE_DEPS:
4778 {
4779 void *hdata = (void*)host_dm + host_dm->data_start;
4780 int count = *(uint32_t*)hdata;
4781 uint64_t *hdev = hdata + 8;
4782 uint64_t *gdev = argptr + 8;
4783 int i;
4784
4785 *(uint32_t*)argptr = tswap32(count);
4786 for (i = 0; i < count; i++) {
4787 *gdev = tswap64(*hdev);
4788 gdev++;
4789 hdev++;
4790 }
4791 break;
4792 }
4793 case DM_LIST_VERSIONS:
4794 {
4795 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4796 uint32_t remaining_data = guest_data_size;
4797 void *cur_data = argptr;
4798 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4799 int vers_size = thunk_type_size(arg_type, 0);
4800
4801 while (1) {
4802 uint32_t next = vers->next;
4803 if (next) {
4804 vers->next = vers_size + (strlen(vers->name) + 1);
4805 }
4806 if (remaining_data < vers->next) {
4807 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4808 break;
4809 }
4810 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4811 strcpy(cur_data + vers_size, vers->name);
4812 cur_data += vers->next;
4813 remaining_data -= vers->next;
4814 if (!next) {
4815 break;
4816 }
4817 vers = (void*)vers + next;
4818 }
4819 break;
4820 }
4821 default:
dec0473d 4822 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4823 ret = -TARGET_EINVAL;
4824 goto out;
4825 }
4826 unlock_user(argptr, guest_data, guest_data_size);
4827
4828 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4829 if (!argptr) {
4830 ret = -TARGET_EFAULT;
4831 goto out;
4832 }
4833 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4834 unlock_user(argptr, arg, target_size);
4835 }
4836out:
ad11ad77 4837 g_free(big_buf);
56e904ec
AG		 4838 return ret;
4839}
4840
a59b5e35 4841static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4842 int cmd, abi_long arg)
a59b5e35
AG		 4843{
4844 void *argptr;
4845 int target_size;
4846 const argtype *arg_type = ie->arg_type;
4847 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4848 abi_long ret;
4849
4850 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4851 struct blkpg_partition host_part;
4852
4853 /* Read and convert blkpg */
4854 arg_type++;
4855 target_size = thunk_type_size(arg_type, 0);
4856 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4857 if (!argptr) {
4858 ret = -TARGET_EFAULT;
4859 goto out;
4860 }
4861 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4862 unlock_user(argptr, arg, 0);
4863
4864 switch (host_blkpg->op) {
4865 case BLKPG_ADD_PARTITION:
4866 case BLKPG_DEL_PARTITION:
4867 /* payload is struct blkpg_partition */
4868 break;
4869 default:
4870 /* Unknown opcode */
4871 ret = -TARGET_EINVAL;
4872 goto out;
4873 }
4874
4875 /* Read and convert blkpg->data */
4876 arg = (abi_long)(uintptr_t)host_blkpg->data;
4877 target_size = thunk_type_size(part_arg_type, 0);
4878 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4879 if (!argptr) {
4880 ret = -TARGET_EFAULT;
4881 goto out;
4882 }
4883 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4884 unlock_user(argptr, arg, 0);
4885
4886 /* Swizzle the data pointer to our local copy and call! */
4887 host_blkpg->data = &host_part;
49ca6f3e 4888 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
a59b5e35
AG		 4889
4890out:
4891 return ret;
4892}
4893
7ff7b666 4894static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4895 int fd, int cmd, abi_long arg)
7ff7b666
LV		 4896{
4897 const argtype *arg_type = ie->arg_type;
4898 const StructEntry *se;
4899 const argtype *field_types;
4900 const int *dst_offsets, *src_offsets;
4901 int target_size;
4902 void *argptr;
b78c522a
MAL		 4903 abi_ulong *target_rt_dev_ptr = NULL;
4904 unsigned long *host_rt_dev_ptr = NULL;
7ff7b666
LV		 4905 abi_long ret;
4906 int i;
4907
4908 assert(ie->access == IOC_W);
4909 assert(*arg_type == TYPE_PTR);
4910 arg_type++;
4911 assert(*arg_type == TYPE_STRUCT);
4912 target_size = thunk_type_size(arg_type, 0);
4913 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4914 if (!argptr) {
4915 return -TARGET_EFAULT;
4916 }
4917 arg_type++;
4918 assert(*arg_type == (int)STRUCT_rtentry);
4919 se = struct_entries + *arg_type++;
4920 assert(se->convert[0] == NULL);
4921 /* convert struct here to be able to catch rt_dev string */
4922 field_types = se->field_types;
4923 dst_offsets = se->field_offsets[THUNK_HOST];
4924 src_offsets = se->field_offsets[THUNK_TARGET];
4925 for (i = 0; i < se->nb_fields; i++) {
4926 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4927 assert(*field_types == TYPE_PTRVOID);
4928 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4929 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4930 if (*target_rt_dev_ptr != 0) {
4931 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4932 tswapal(*target_rt_dev_ptr));
4933 if (!*host_rt_dev_ptr) {
4934 unlock_user(argptr, arg, 0);
4935 return -TARGET_EFAULT;
4936 }
4937 } else {
4938 *host_rt_dev_ptr = 0;
4939 }
4940 field_types++;
4941 continue;
4942 }
4943 field_types = thunk_convert(buf_temp + dst_offsets[i],
4944 argptr + src_offsets[i],
4945 field_types, THUNK_HOST);
4946 }
4947 unlock_user(argptr, arg, 0);
4948
49ca6f3e 4949 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
b78c522a
MAL		 4950
4951 assert(host_rt_dev_ptr != NULL);
4952 assert(target_rt_dev_ptr != NULL);
7ff7b666
LV		 4953 if (*host_rt_dev_ptr != 0) {
4954 unlock_user((void *)*host_rt_dev_ptr,
4955 *target_rt_dev_ptr, 0);
4956 }
4957 return ret;
4958}
4959
ca56f5b5 4960static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4961 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 4962{
4963 int sig = target_to_host_signal(arg);
49ca6f3e 4964 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
ca56f5b5
PB		 4965}
4966
6d5d5dde
DB		 4967static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp,
4968 int fd, int cmd, abi_long arg)
4969{
4970 struct timeval tv;
4971 abi_long ret;
4972
4973 ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv));
4974 if (is_error(ret)) {
4975 return ret;
4976 }
4977
4978 if (cmd == (int)TARGET_SIOCGSTAMP_OLD) {
4979 if (copy_to_user_timeval(arg, &tv)) {
4980 return -TARGET_EFAULT;
4981 }
4982 } else {
4983 if (copy_to_user_timeval64(arg, &tv)) {
4984 return -TARGET_EFAULT;
4985 }
4986 }
4987
4988 return ret;
4989}
4990
4991static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp,
4992 int fd, int cmd, abi_long arg)
4993{
4994 struct timespec ts;
4995 abi_long ret;
4996
4997 ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts));
4998 if (is_error(ret)) {
4999 return ret;
5000 }
5001
5002 if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) {
5003 if (host_to_target_timespec(arg, &ts)) {
5004 return -TARGET_EFAULT;
5005 }
5006 } else{
5007 if (host_to_target_timespec64(arg, &ts)) {
5008 return -TARGET_EFAULT;
5009 }
5010 }
5011
5012 return ret;
5013}
5014
2b74f621
AS		 5015#ifdef TIOCGPTPEER
5016static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
5017 int fd, int cmd, abi_long arg)
5018{
5019 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
5020 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
5021}
5022#endif
5023
9f106a75 5024static IOCTLEntry ioctl_entries[] = {
001faf32 5025#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 5026 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
5027#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
5028 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
8cb762fe
HD		 5029#define IOCTL_IGNORE(cmd) \
5030 { TARGET_ ## cmd, 0, #cmd },
31e31b8a
FB		 5031#include "ioctls.h"
5032 { 0, 0, },
5033};
5034
53a5960a 5035/* ??? Implement proper locking for ioctls. */
0da46a6e 5036/* do_ioctl() Must return target values and target errnos. */
45c874eb 5037static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 5038{
5039 const IOCTLEntry *ie;
5040 const argtype *arg_type;
992f48a0 5041 abi_long ret;
31e31b8a 5042 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 5043 int target_size;
5044 void *argptr;
31e31b8a
FB		 5045
5046 ie = ioctl_entries;
5047 for(;;) {
5048 if (ie->target_cmd == 0) {
32407103 5049 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 5050 return -TARGET_ENOSYS;
31e31b8a
FB		 5051 }
5052 if (ie->target_cmd == cmd)
5053 break;
5054 ie++;
5055 }
5056 arg_type = ie->arg_type;
d2ef05bb
PM		 5057 if (ie->do_ioctl) {
5058 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
8cb762fe
HD		 5059 } else if (!ie->host_cmd) {
5060 /* Some architectures define BSD ioctls in their headers
5061 that are not implemented in Linux. */
5062 return -TARGET_ENOSYS;
d2ef05bb
PM		 5063 }
5064
31e31b8a
FB		 5065 switch(arg_type[0]) {
5066 case TYPE_NULL:
5067 /* no argument */
49ca6f3e 5068 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
31e31b8a
FB		 5069 break;
5070 case TYPE_PTRVOID:
5071 case TYPE_INT:
49ca6f3e 5072 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
31e31b8a
FB		 5073 break;
5074 case TYPE_PTR:
5075 arg_type++;
53a5960a 5076 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 5077 switch(ie->access) {
5078 case IOC_R:
49ca6f3e 5079 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 5080 if (!is_error(ret)) {
579a97f7
FB		 5081 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5082 if (!argptr)
5083 return -TARGET_EFAULT;
53a5960a
PB		 5084 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
5085 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 5086 }
5087 break;
5088 case IOC_W:
579a97f7
FB		 5089 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5090 if (!argptr)
5091 return -TARGET_EFAULT;
53a5960a
PB		 5092 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5093 unlock_user(argptr, arg, 0);
49ca6f3e 5094 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a
FB		 5095 break;
5096 default:
5097 case IOC_RW:
579a97f7
FB		 5098 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
5099 if (!argptr)
5100 return -TARGET_EFAULT;
53a5960a
PB		 5101 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
5102 unlock_user(argptr, arg, 0);
49ca6f3e 5103 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 5104 if (!is_error(ret)) {
579a97f7
FB		 5105 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
5106 if (!argptr)
5107 return -TARGET_EFAULT;
53a5960a
PB		 5108 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
5109 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 5110 }
5111 break;
5112 }
5113 break;
5114 default:
32407103
JM		 5115 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
5116 (long)cmd, arg_type[0]);
0da46a6e 5117 ret = -TARGET_ENOSYS;
31e31b8a
FB		 5118 break;
5119 }
5120 return ret;
5121}
5122
b39bc503 5123static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 5124 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
5125 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
5126 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
5127 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
5128 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
5129 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
5130 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
5131 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
5132 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
5133 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
5134 { TARGET_IXON, TARGET_IXON, IXON, IXON },
5135 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
5136 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
5137 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
5138 { 0, 0, 0, 0 }
5139};
5140
b39bc503 5141static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 5142 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
5143 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
5144 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
5145 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
5146 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
5147 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
5148 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
5149 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
5150 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
5151 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
5152 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
5153 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
5154 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
5155 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
5156 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
5157 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
5158 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
5159 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
5160 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
5161 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
5162 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
5163 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
5164 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
5165 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
5166 { 0, 0, 0, 0 }
5167};
5168
b39bc503 5169static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 5170 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
5171 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
5172 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
5173 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
5174 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
5175 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
5176 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
5177 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
5178 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
5179 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
5180 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
5181 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
5182 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
5183 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
5184 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
5185 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
5186 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
5187 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
5188 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
5189 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
5190 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
5191 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
5192 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
5193 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
5194 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
5195 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
5196 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
5197 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
5198 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
5199 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
5200 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
5201 { 0, 0, 0, 0 }
5202};
5203
b39bc503 5204static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 5205 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
5206 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
5207 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
5208 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
5209 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
5210 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
5211 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
5212 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
5213 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
5214 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
5215 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
5216 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
5217 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
5218 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
5219 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
5220 { 0, 0, 0, 0 }
5221};
5222
5223static void target_to_host_termios (void *dst, const void *src)
5224{
5225 struct host_termios *host = dst;
5226 const struct target_termios *target = src;
3b46e624 5227
5fafdf24 5228 host->c_iflag =
31e31b8a 5229 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 5230 host->c_oflag =
31e31b8a 5231 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 5232 host->c_cflag =
31e31b8a 5233 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 5234 host->c_lflag =
31e31b8a
FB		 5235 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
5236 host->c_line = target->c_line;
3b46e624 5237
44607123 5238 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 5239 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
5240 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 5241 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 5242 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 5243 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 5244 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 5245 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 5246 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 5247 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 5248 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
5249 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 5250 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
5251 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
5252 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
5253 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
5254 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 5255 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 5256}
3b46e624 5257
31e31b8a
FB		 5258static void host_to_target_termios (void *dst, const void *src)
5259{
5260 struct target_termios *target = dst;
5261 const struct host_termios *host = src;
5262
5fafdf24 5263 target->c_iflag =
31e31b8a 5264 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 5265 target->c_oflag =
31e31b8a 5266 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 5267 target->c_cflag =
31e31b8a 5268 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 5269 target->c_lflag =
31e31b8a
FB		 5270 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
5271 target->c_line = host->c_line;
3b46e624 5272
44607123 5273 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 5274 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
5275 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
5276 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
5277 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
5278 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
5279 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
5280 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
5281 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
5282 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
5283 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
5284 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
5285 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
5286 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
5287 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
5288 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
5289 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
5290 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
5291}
5292
8e853dc7 5293static const StructEntry struct_termios_def = {
31e31b8a
FB		 5294 .convert = { host_to_target_termios, target_to_host_termios },
5295 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
5296 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
5297};
5298
5286db75 5299static bitmask_transtbl mmap_flags_tbl[] = {
541e1690
HD		 5300 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
5301 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
5302 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
5303 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
5304 MAP_ANONYMOUS, MAP_ANONYMOUS },
5305 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
5306 MAP_GROWSDOWN, MAP_GROWSDOWN },
5307 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
5308 MAP_DENYWRITE, MAP_DENYWRITE },
5309 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
5310 MAP_EXECUTABLE, MAP_EXECUTABLE },
5311 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
5312 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
5313 MAP_NORESERVE, MAP_NORESERVE },
5314 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
5315 /* MAP_STACK had been ignored by the kernel for quite some time.
5316 Recognize it for the target insofar as we do not want to pass
5317 it through to the host. */
5318 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
5319 { 0, 0, 0, 0 }
5286db75
FB		 5320};
5321
2ab83ea7 5322#if defined(TARGET_I386)
6dbad63e
FB		 5323
5324/* NOTE: there is really one LDT for all the threads */
b1d8e52e 5325static uint8_t *ldt_table;
6dbad63e 5326
03acab66 5327static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 5328{
5329 int size;
53a5960a 5330 void *p;
6dbad63e
FB		 5331
5332 if (!ldt_table)
5333 return 0;
5334 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5335 if (size > bytecount)
5336 size = bytecount;
579a97f7
FB		 5337 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5338 if (!p)
03acab66 5339 return -TARGET_EFAULT;
579a97f7 5340 /* ??? Should this by byteswapped? */
53a5960a
PB		 5341 memcpy(p, ldt_table, size);
5342 unlock_user(p, ptr, size);
6dbad63e
FB		 5343 return size;
5344}
5345
5346/* XXX: add locking support */
03acab66
FB		 5347static abi_long write_ldt(CPUX86State *env,
5348 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 5349{
5350 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 5351 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 5352 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 5353 int seg_not_present, useable, lm;
6dbad63e
FB		 5354 uint32_t *lp, entry_1, entry_2;
5355
5356 if (bytecount != sizeof(ldt_info))
03acab66 5357 return -TARGET_EINVAL;
579a97f7 5358 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 5359 return -TARGET_EFAULT;
53a5960a 5360 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5361 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 5362 ldt_info.limit = tswap32(target_ldt_info->limit);
5363 ldt_info.flags = tswap32(target_ldt_info->flags);
5364 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 5365
6dbad63e 5366 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 5367 return -TARGET_EINVAL;
6dbad63e
FB		 5368 seg_32bit = ldt_info.flags & 1;
5369 contents = (ldt_info.flags >> 1) & 3;
5370 read_exec_only = (ldt_info.flags >> 3) & 1;
5371 limit_in_pages = (ldt_info.flags >> 4) & 1;
5372 seg_not_present = (ldt_info.flags >> 5) & 1;
5373 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 5374#ifdef TARGET_ABI32
5375 lm = 0;
5376#else
5377 lm = (ldt_info.flags >> 7) & 1;
5378#endif
6dbad63e
FB		 5379 if (contents == 3) {
5380 if (oldmode)
03acab66 5381 return -TARGET_EINVAL;
6dbad63e 5382 if (seg_not_present == 0)
03acab66 5383 return -TARGET_EINVAL;
6dbad63e
FB		 5384 }
5385 /* allocate the LDT */
5386 if (!ldt_table) {
e441570f
AZ		 5387 env->ldt.base = target_mmap(0,
5388 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5389 PROT_READ|PROT_WRITE,
5390 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5391 if (env->ldt.base == -1)
03acab66 5392 return -TARGET_ENOMEM;
e441570f
AZ		 5393 memset(g2h(env->ldt.base), 0,
5394 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 5395 env->ldt.limit = 0xffff;
e441570f 5396 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 5397 }
5398
5399 /* NOTE: same code as Linux kernel */
5400 /* Allow LDTs to be cleared by the user. */
5401 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5402 if (oldmode ||
5403 (contents == 0 &&
5404 read_exec_only == 1 &&
5405 seg_32bit == 0 &&
5406 limit_in_pages == 0 &&
5407 seg_not_present == 1 &&
5408 useable == 0 )) {
5409 entry_1 = 0;
5410 entry_2 = 0;
5411 goto install;
5412 }
5413 }
3b46e624 5414
6dbad63e
FB		 5415 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5416 (ldt_info.limit & 0x0ffff);
5417 entry_2 = (ldt_info.base_addr & 0xff000000) |
5418 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5419 (ldt_info.limit & 0xf0000) |
5420 ((read_exec_only ^ 1) << 9) |
5421 (contents << 10) |
5422 ((seg_not_present ^ 1) << 15) |
5423 (seg_32bit << 22) |
5424 (limit_in_pages << 23) |
8d18e893 5425 (lm << 21) |
6dbad63e
FB		 5426 0x7000;
5427 if (!oldmode)
5428 entry_2 |= (useable << 20);
14ae3ba7 5429
6dbad63e
FB		 5430 /* Install the new entry ... */
5431install:
5432 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5433 lp[0] = tswap32(entry_1);
5434 lp[1] = tswap32(entry_2);
5435 return 0;
5436}
5437
5438/* specific and weird i386 syscalls */
8fcd3692
BS		 5439static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5440 unsigned long bytecount)
6dbad63e 5441{
03acab66 5442 abi_long ret;
3b46e624 5443
6dbad63e
FB		 5444 switch (func) {
5445 case 0:
5446 ret = read_ldt(ptr, bytecount);
5447 break;
5448 case 1:
5449 ret = write_ldt(env, ptr, bytecount, 1);
5450 break;
5451 case 0x11:
5452 ret = write_ldt(env, ptr, bytecount, 0);
5453 break;
03acab66
FB		 5454 default:
5455 ret = -TARGET_ENOSYS;
5456 break;
6dbad63e
FB		 5457 }
5458 return ret;
5459}
1b6b029e 5460
4583f589 5461#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 5462abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5463{
5464 uint64_t *gdt_table = g2h(env->gdt.base);
5465 struct target_modify_ldt_ldt_s ldt_info;
5466 struct target_modify_ldt_ldt_s *target_ldt_info;
5467 int seg_32bit, contents, read_exec_only, limit_in_pages;
5468 int seg_not_present, useable, lm;
5469 uint32_t *lp, entry_1, entry_2;
5470 int i;
5471
5472 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5473 if (!target_ldt_info)
5474 return -TARGET_EFAULT;
5475 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5476 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 5477 ldt_info.limit = tswap32(target_ldt_info->limit);
5478 ldt_info.flags = tswap32(target_ldt_info->flags);
5479 if (ldt_info.entry_number == -1) {
5480 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5481 if (gdt_table[i] == 0) {
5482 ldt_info.entry_number = i;
5483 target_ldt_info->entry_number = tswap32(i);
5484 break;
5485 }
5486 }
5487 }
5488 unlock_user_struct(target_ldt_info, ptr, 1);
5489
5490 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5491 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5492 return -TARGET_EINVAL;
5493 seg_32bit = ldt_info.flags & 1;
5494 contents = (ldt_info.flags >> 1) & 3;
5495 read_exec_only = (ldt_info.flags >> 3) & 1;
5496 limit_in_pages = (ldt_info.flags >> 4) & 1;
5497 seg_not_present = (ldt_info.flags >> 5) & 1;
5498 useable = (ldt_info.flags >> 6) & 1;
5499#ifdef TARGET_ABI32
5500 lm = 0;
5501#else
5502 lm = (ldt_info.flags >> 7) & 1;
5503#endif
5504
5505 if (contents == 3) {
5506 if (seg_not_present == 0)
5507 return -TARGET_EINVAL;
5508 }
5509
5510 /* NOTE: same code as Linux kernel */
5511 /* Allow LDTs to be cleared by the user. */
5512 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5513 if ((contents == 0 &&
5514 read_exec_only == 1 &&
5515 seg_32bit == 0 &&
5516 limit_in_pages == 0 &&
5517 seg_not_present == 1 &&
5518 useable == 0 )) {
5519 entry_1 = 0;
5520 entry_2 = 0;
5521 goto install;
5522 }
5523 }
5524
5525 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5526 (ldt_info.limit & 0x0ffff);
5527 entry_2 = (ldt_info.base_addr & 0xff000000) |
5528 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5529 (ldt_info.limit & 0xf0000) |
5530 ((read_exec_only ^ 1) << 9) |
5531 (contents << 10) |
5532 ((seg_not_present ^ 1) << 15) |
5533 (seg_32bit << 22) |
5534 (limit_in_pages << 23) |
5535 (useable << 20) |
5536 (lm << 21) |
5537 0x7000;
5538
5539 /* Install the new entry ... */
5540install:
5541 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5542 lp[0] = tswap32(entry_1);
5543 lp[1] = tswap32(entry_2);
5544 return 0;
5545}
5546
8fcd3692 5547static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5548{
5549 struct target_modify_ldt_ldt_s *target_ldt_info;
5550 uint64_t *gdt_table = g2h(env->gdt.base);
5551 uint32_t base_addr, limit, flags;
5552 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5553 int seg_not_present, useable, lm;
5554 uint32_t *lp, entry_1, entry_2;
5555
5556 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5557 if (!target_ldt_info)
5558 return -TARGET_EFAULT;
5559 idx = tswap32(target_ldt_info->entry_number);
5560 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5561 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5562 unlock_user_struct(target_ldt_info, ptr, 1);
5563 return -TARGET_EINVAL;
5564 }
5565 lp = (uint32_t *)(gdt_table + idx);
5566 entry_1 = tswap32(lp[0]);
5567 entry_2 = tswap32(lp[1]);
5568
5569 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5570 contents = (entry_2 >> 10) & 3;
5571 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5572 seg_32bit = (entry_2 >> 22) & 1;
5573 limit_in_pages = (entry_2 >> 23) & 1;
5574 useable = (entry_2 >> 20) & 1;
5575#ifdef TARGET_ABI32
5576 lm = 0;
5577#else
5578 lm = (entry_2 >> 21) & 1;
5579#endif
5580 flags = (seg_32bit << 0) | (contents << 1) |
5581 (read_exec_only << 3) | (limit_in_pages << 4) |
5582 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5583 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5584 base_addr = (entry_1 >> 16) |
5585 (entry_2 & 0xff000000) |
5586 ((entry_2 & 0xff) << 16);
cbb21eed 5587 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 5588 target_ldt_info->limit = tswap32(limit);
5589 target_ldt_info->flags = tswap32(flags);
5590 unlock_user_struct(target_ldt_info, ptr, 1);
5591 return 0;
5592}
4583f589 5593#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 5594
d2fd1af7 5595#ifndef TARGET_ABI32
2667e71c 5596abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 5597{
1add8698 5598 abi_long ret = 0;
d2fd1af7
FB		 5599 abi_ulong val;
5600 int idx;
1add8698 5601
d2fd1af7
FB		 5602 switch(code) {
5603 case TARGET_ARCH_SET_GS:
5604 case TARGET_ARCH_SET_FS:
5605 if (code == TARGET_ARCH_SET_GS)
5606 idx = R_GS;
5607 else
5608 idx = R_FS;
5609 cpu_x86_load_seg(env, idx, 0);
5610 env->segs[idx].base = addr;
5611 break;
5612 case TARGET_ARCH_GET_GS:
5613 case TARGET_ARCH_GET_FS:
5614 if (code == TARGET_ARCH_GET_GS)
5615 idx = R_GS;
5616 else
5617 idx = R_FS;
5618 val = env->segs[idx].base;
5619 if (put_user(val, addr, abi_ulong))
1add8698 5620 ret = -TARGET_EFAULT;
d2fd1af7
FB		 5621 break;
5622 default:
5623 ret = -TARGET_EINVAL;
5624 break;
5625 }
1add8698 5626 return ret;
d2fd1af7
FB		 5627}
5628#endif
5629
2ab83ea7
FB		 5630#endif /* defined(TARGET_I386) */
5631
05098a93 5632#define NEW_STACK_SIZE 0x40000
d865bab5 5633
d865bab5
PB		 5634
5635static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5636typedef struct {
9349b4f9 5637 CPUArchState *env;
d865bab5
PB		 5638 pthread_mutex_t mutex;
5639 pthread_cond_t cond;
5640 pthread_t thread;
5641 uint32_t tid;
5642 abi_ulong child_tidptr;
5643 abi_ulong parent_tidptr;
5644 sigset_t sigmask;
5645} new_thread_info;
5646
5647static void *clone_func(void *arg)
5648{
5649 new_thread_info *info = arg;
9349b4f9 5650 CPUArchState *env;
0d34282f 5651 CPUState *cpu;
edf8e2af 5652 TaskState *ts;
d865bab5 5653
70903763 5654 rcu_register_thread();
3468b59e 5655 tcg_register_thread();
d865bab5 5656 env = info->env;
29a0af61 5657 cpu = env_cpu(env);
a2247f8e 5658 thread_cpu = cpu;
0429a971 5659 ts = (TaskState *)cpu->opaque;
71ba74f6 5660 info->tid = sys_gettid();
edf8e2af 5661 task_settid(ts);
d865bab5
PB		 5662 if (info->child_tidptr)
5663 put_user_u32(info->tid, info->child_tidptr);
5664 if (info->parent_tidptr)
5665 put_user_u32(info->tid, info->parent_tidptr);
5ebdd774 5666 qemu_guest_random_seed_thread_part2(cpu->random_seed);
d865bab5
PB		 5667 /* Enable signals. */
5668 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5669 /* Signal to the parent that we're ready. */
5670 pthread_mutex_lock(&info->mutex);
5671 pthread_cond_broadcast(&info->cond);
5672 pthread_mutex_unlock(&info->mutex);
a4dd3d51 5673 /* Wait until the parent has finished initializing the tls state. */
d865bab5
PB		 5674 pthread_mutex_lock(&clone_lock);
5675 pthread_mutex_unlock(&clone_lock);
5676 cpu_loop(env);
5677 /* never exits */
5678 return NULL;
5679}
1b6b029e 5680
0da46a6e
TS		 5681/* do_fork() Must return host values and target errnos (unlike most
5682 do_*() functions). */
9349b4f9 5683static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 5684 abi_ulong parent_tidptr, target_ulong newtls,
5685 abi_ulong child_tidptr)
1b6b029e 5686{
29a0af61 5687 CPUState *cpu = env_cpu(env);
1b6b029e 5688 int ret;
5cd4393b 5689 TaskState *ts;
0429a971 5690 CPUState *new_cpu;
9349b4f9 5691 CPUArchState *new_env;
d865bab5 5692 sigset_t sigmask;
3b46e624 5693
5ea2fc84
PM		 5694 flags &= ~CLONE_IGNORED_FLAGS;
5695
436d124b
AZ		 5696 /* Emulate vfork() with fork() */
5697 if (flags & CLONE_VFORK)
5698 flags &= ~(CLONE_VFORK | CLONE_VM);
5699
1b6b029e 5700 if (flags & CLONE_VM) {
0429a971 5701 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5702 new_thread_info info;
5703 pthread_attr_t attr;
24cb36a6 5704
5ea2fc84
PM		 5705 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
5706 (flags & CLONE_INVALID_THREAD_FLAGS)) {
5707 return -TARGET_EINVAL;
5708 }
5709
c78d65e8 5710 ts = g_new0(TaskState, 1);
624f7979 5711 init_task_state(ts);
73a988d9
MF		 5712
5713 /* Grab a mutex so that thread setup appears atomic. */
5714 pthread_mutex_lock(&clone_lock);
5715
1b6b029e 5716 /* we create a new CPU instance. */
c5be9f08 5717 new_env = cpu_copy(env);
6e68e076
PB		 5718 /* Init regs that differ from the parent. */
5719 cpu_clone_regs(new_env, newsp);
29a0af61 5720 new_cpu = env_cpu(new_env);
0429a971 5721 new_cpu->opaque = ts;
edf8e2af
MW		 5722 ts->bprm = parent_ts->bprm;
5723 ts->info = parent_ts->info;
3d3efba0 5724 ts->signal_mask = parent_ts->signal_mask;
d865bab5 5725
7cfbd386 5726 if (flags & CLONE_CHILD_CLEARTID) {
c2764719
PB		 5727 ts->child_tidptr = child_tidptr;
5728 }
5729
7cfbd386 5730 if (flags & CLONE_SETTLS) {
d865bab5 5731 cpu_set_tls (new_env, newtls);
7cfbd386 5732 }
d865bab5 5733
d865bab5
PB		 5734 memset(&info, 0, sizeof(info));
5735 pthread_mutex_init(&info.mutex, NULL);
5736 pthread_mutex_lock(&info.mutex);
5737 pthread_cond_init(&info.cond, NULL);
5738 info.env = new_env;
7cfbd386 5739 if (flags & CLONE_CHILD_SETTID) {
d865bab5 5740 info.child_tidptr = child_tidptr;
7cfbd386
PM		 5741 }
5742 if (flags & CLONE_PARENT_SETTID) {
d865bab5 5743 info.parent_tidptr = parent_tidptr;
7cfbd386 5744 }
d865bab5
PB		 5745
5746 ret = pthread_attr_init(&attr);
48e15fc2
NF		 5747 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5748 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 5749 /* It is not safe to deliver signals until the child has finished
5750 initializing, so temporarily block all signals. */
5751 sigfillset(&sigmask);
5752 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5ebdd774 5753 cpu->random_seed = qemu_guest_random_seed_thread_part1();
d865bab5 5754
b67cb68b
AB		 5755 /* If this is our first additional thread, we need to ensure we
5756 * generate code for parallel execution and flush old translations.
5757 */
5758 if (!parallel_cpus) {
5759 parallel_cpus = true;
5760 tb_flush(cpu);
5761 }
5762
d865bab5 5763 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 5764 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 5765
5766 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5767 pthread_attr_destroy(&attr);
5768 if (ret == 0) {
5769 /* Wait for the child to initialize. */
5770 pthread_cond_wait(&info.cond, &info.mutex);
5771 ret = info.tid;
d865bab5
PB		 5772 } else {
5773 ret = -1;
5774 }
5775 pthread_mutex_unlock(&info.mutex);
5776 pthread_cond_destroy(&info.cond);
5777 pthread_mutex_destroy(&info.mutex);
5778 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 5779 } else {
5780 /* if no CLONE_VM, we consider it is a fork */
5ea2fc84
PM		 5781 if (flags & CLONE_INVALID_FORK_FLAGS) {
5782 return -TARGET_EINVAL;
5783 }
5784
5785 /* We can't support custom termination signals */
5786 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
93b4eff8
TB		 5787 return -TARGET_EINVAL;
5788 }
7d92d34e
TB		 5789
5790 if (block_signals()) {
5791 return -TARGET_ERESTARTSYS;
5792 }
5793
d865bab5 5794 fork_start();
1b6b029e 5795 ret = fork();
d865bab5 5796 if (ret == 0) {
2b1319c8 5797 /* Child Process. */
d865bab5
PB		 5798 cpu_clone_regs(env, newsp);
5799 fork_end(1);
2b1319c8
AJ		 5800 /* There is a race condition here. The parent process could
5801 theoretically read the TID in the child process before the child
5802 tid is set. This would require using either ptrace
5803 (not implemented) or having *_tidptr to point at a shared memory
5804 mapping. We can't repeat the spinlock hack used above because
5805 the child process gets its own copy of the lock. */
d865bab5 5806 if (flags & CLONE_CHILD_SETTID)
71ba74f6 5807 put_user_u32(sys_gettid(), child_tidptr);
d865bab5 5808 if (flags & CLONE_PARENT_SETTID)
71ba74f6 5809 put_user_u32(sys_gettid(), parent_tidptr);
0429a971 5810 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5811 if (flags & CLONE_SETTLS)
5812 cpu_set_tls (env, newtls);
c2764719
PB		 5813 if (flags & CLONE_CHILD_CLEARTID)
5814 ts->child_tidptr = child_tidptr;
d865bab5
PB		 5815 } else {
5816 fork_end(0);
5817 }
1b6b029e
FB		 5818 }
5819 return ret;
5820}
5821
5f106811
APR		 5822/* warning : doesn't handle linux specific flags... */
5823static int target_to_host_fcntl_cmd(int cmd)
5824{
4a545761
SB		 5825 int ret;
5826
5f106811 5827 switch(cmd) {
4a545761
SB		 5828 case TARGET_F_DUPFD:
5829 case TARGET_F_GETFD:
5830 case TARGET_F_SETFD:
5831 case TARGET_F_GETFL:
5832 case TARGET_F_SETFL:
5833 ret = cmd;
5834 break;
5835 case TARGET_F_GETLK:
5836 ret = F_GETLK64;
5837 break;
5838 case TARGET_F_SETLK:
5839 ret = F_SETLK64;
5840 break;
5841 case TARGET_F_SETLKW:
5842 ret = F_SETLKW64;
5843 break;
5844 case TARGET_F_GETOWN:
5845 ret = F_GETOWN;
5846 break;
5847 case TARGET_F_SETOWN:
5848 ret = F_SETOWN;
5849 break;
5850 case TARGET_F_GETSIG:
5851 ret = F_GETSIG;
5852 break;
5853 case TARGET_F_SETSIG:
5854 ret = F_SETSIG;
5855 break;
5f106811 5856#if TARGET_ABI_BITS == 32
4a545761
SB		 5857 case TARGET_F_GETLK64:
5858 ret = F_GETLK64;
5859 break;
5860 case TARGET_F_SETLK64:
5861 ret = F_SETLK64;
5862 break;
5863 case TARGET_F_SETLKW64:
5864 ret = F_SETLKW64;
5865 break;
5f106811 5866#endif
4a545761
SB		 5867 case TARGET_F_SETLEASE:
5868 ret = F_SETLEASE;
5869 break;
5870 case TARGET_F_GETLEASE:
5871 ret = F_GETLEASE;
5872 break;
fbd5de9b 5873#ifdef F_DUPFD_CLOEXEC
4a545761
SB		 5874 case TARGET_F_DUPFD_CLOEXEC:
5875 ret = F_DUPFD_CLOEXEC;
5876 break;
fbd5de9b 5877#endif
4a545761
SB		 5878 case TARGET_F_NOTIFY:
5879 ret = F_NOTIFY;
5880 break;
8d5d3004 5881#ifdef F_GETOWN_EX
4a545761
SB		 5882 case TARGET_F_GETOWN_EX:
5883 ret = F_GETOWN_EX;
5884 break;
8d5d3004
AS		 5885#endif
5886#ifdef F_SETOWN_EX
4a545761
SB		 5887 case TARGET_F_SETOWN_EX:
5888 ret = F_SETOWN_EX;
5889 break;
8d5d3004 5890#endif
ddf31aa8 5891#ifdef F_SETPIPE_SZ
4a545761
SB		 5892 case TARGET_F_SETPIPE_SZ:
5893 ret = F_SETPIPE_SZ;
5894 break;
5895 case TARGET_F_GETPIPE_SZ:
5896 ret = F_GETPIPE_SZ;
5897 break;
ddf31aa8 5898#endif
4a545761
SB		 5899 default:
5900 ret = -TARGET_EINVAL;
5901 break;
5902 }
5903
5904#if defined(__powerpc64__)
5905 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
5906 * is not supported by kernel. The glibc fcntl call actually adjusts
5907 * them to 5, 6 and 7 before making the syscall(). Since we make the
5908 * syscall directly, adjust to what is supported by the kernel.
5909 */
5910 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
5911 ret -= F_GETLK64 - 5;
5f106811 5912 }
4a545761
SB		 5913#endif
5914
5915 return ret;
5f106811
APR		 5916}
5917
ae68ad9f
LV		 5918#define FLOCK_TRANSTBL \
5919 switch (type) { \
5920 TRANSTBL_CONVERT(F_RDLCK); \
5921 TRANSTBL_CONVERT(F_WRLCK); \
5922 TRANSTBL_CONVERT(F_UNLCK); \
5923 TRANSTBL_CONVERT(F_EXLCK); \
5924 TRANSTBL_CONVERT(F_SHLCK); \
5925 }
5926
5927static int target_to_host_flock(int type)
5928{
5929#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
5930 FLOCK_TRANSTBL
5931#undef TRANSTBL_CONVERT
5932 return -TARGET_EINVAL;
5933}
5934
5935static int host_to_target_flock(int type)
5936{
5937#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
5938 FLOCK_TRANSTBL
5939#undef TRANSTBL_CONVERT
5940 /* if we don't know how to convert the value coming
5941 * from the host we copy to the target field as-is
5942 */
5943 return type;
5944}
2ba7f730 5945
213d3e9e
PM		 5946static inline abi_long copy_from_user_flock(struct flock64 *fl,
5947 abi_ulong target_flock_addr)
7775e9ec 5948{
53a5960a 5949 struct target_flock *target_fl;
ae68ad9f 5950 int l_type;
213d3e9e
PM		 5951
5952 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5953 return -TARGET_EFAULT;
5954 }
5955
5956 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5957 l_type = target_to_host_flock(l_type);
5958 if (l_type < 0) {
5959 return l_type;
5960 }
5961 fl->l_type = l_type;
213d3e9e
PM		 5962 __get_user(fl->l_whence, &target_fl->l_whence);
5963 __get_user(fl->l_start, &target_fl->l_start);
5964 __get_user(fl->l_len, &target_fl->l_len);
5965 __get_user(fl->l_pid, &target_fl->l_pid);
5966 unlock_user_struct(target_fl, target_flock_addr, 0);
5967 return 0;
5968}
5969
5970static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
5971 const struct flock64 *fl)
5972{
5973 struct target_flock *target_fl;
5974 short l_type;
5975
5976 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5977 return -TARGET_EFAULT;
5978 }
5979
ae68ad9f 5980 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5981 __put_user(l_type, &target_fl->l_type);
5982 __put_user(fl->l_whence, &target_fl->l_whence);
5983 __put_user(fl->l_start, &target_fl->l_start);
5984 __put_user(fl->l_len, &target_fl->l_len);
5985 __put_user(fl->l_pid, &target_fl->l_pid);
5986 unlock_user_struct(target_fl, target_flock_addr, 1);
5987 return 0;
5988}
5989
5990typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
5991typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
5992
5993#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7f254c5c 5994static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
213d3e9e
PM		 5995 abi_ulong target_flock_addr)
5996{
7f254c5c 5997 struct target_oabi_flock64 *target_fl;
ae68ad9f 5998 int l_type;
213d3e9e
PM		 5999
6000 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
6001 return -TARGET_EFAULT;
6002 }
6003
6004 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 6005 l_type = target_to_host_flock(l_type);
6006 if (l_type < 0) {
6007 return l_type;
6008 }
6009 fl->l_type = l_type;
213d3e9e
PM		 6010 __get_user(fl->l_whence, &target_fl->l_whence);
6011 __get_user(fl->l_start, &target_fl->l_start);
6012 __get_user(fl->l_len, &target_fl->l_len);
6013 __get_user(fl->l_pid, &target_fl->l_pid);
6014 unlock_user_struct(target_fl, target_flock_addr, 0);
6015 return 0;
6016}
6017
7f254c5c 6018static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
213d3e9e
PM		 6019 const struct flock64 *fl)
6020{
7f254c5c 6021 struct target_oabi_flock64 *target_fl;
213d3e9e
PM		 6022 short l_type;
6023
6024 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
6025 return -TARGET_EFAULT;
6026 }
6027
ae68ad9f 6028 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 6029 __put_user(l_type, &target_fl->l_type);
6030 __put_user(fl->l_whence, &target_fl->l_whence);
6031 __put_user(fl->l_start, &target_fl->l_start);
6032 __put_user(fl->l_len, &target_fl->l_len);
6033 __put_user(fl->l_pid, &target_fl->l_pid);
6034 unlock_user_struct(target_fl, target_flock_addr, 1);
6035 return 0;
6036}
6037#endif
6038
6039static inline abi_long copy_from_user_flock64(struct flock64 *fl,
6040 abi_ulong target_flock_addr)
6041{
6042 struct target_flock64 *target_fl;
ae68ad9f 6043 int l_type;
213d3e9e
PM		 6044
6045 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
6046 return -TARGET_EFAULT;
6047 }
6048
6049 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 6050 l_type = target_to_host_flock(l_type);
6051 if (l_type < 0) {
6052 return l_type;
6053 }
6054 fl->l_type = l_type;
213d3e9e
PM		 6055 __get_user(fl->l_whence, &target_fl->l_whence);
6056 __get_user(fl->l_start, &target_fl->l_start);
6057 __get_user(fl->l_len, &target_fl->l_len);
6058 __get_user(fl->l_pid, &target_fl->l_pid);
6059 unlock_user_struct(target_fl, target_flock_addr, 0);
6060 return 0;
6061}
6062
6063static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
6064 const struct flock64 *fl)
6065{
6066 struct target_flock64 *target_fl;
6067 short l_type;
6068
6069 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
6070 return -TARGET_EFAULT;
6071 }
6072
ae68ad9f 6073 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 6074 __put_user(l_type, &target_fl->l_type);
6075 __put_user(fl->l_whence, &target_fl->l_whence);
6076 __put_user(fl->l_start, &target_fl->l_start);
6077 __put_user(fl->l_len, &target_fl->l_len);
6078 __put_user(fl->l_pid, &target_fl->l_pid);
6079 unlock_user_struct(target_fl, target_flock_addr, 1);
6080 return 0;
6081}
6082
6083static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
6084{
43f238d7 6085 struct flock64 fl64;
8d5d3004
AS		 6086#ifdef F_GETOWN_EX
6087 struct f_owner_ex fox;
6088 struct target_f_owner_ex *target_fox;
6089#endif
992f48a0 6090 abi_long ret;
5f106811
APR		 6091 int host_cmd = target_to_host_fcntl_cmd(cmd);
6092
6093 if (host_cmd == -TARGET_EINVAL)
6094 return host_cmd;
53a5960a 6095
7775e9ec
FB		 6096 switch(cmd) {
6097 case TARGET_F_GETLK:
213d3e9e
PM		 6098 ret = copy_from_user_flock(&fl64, arg);
6099 if (ret) {
6100 return ret;
6101 }
435da5e7 6102 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 6103 if (ret == 0) {
213d3e9e 6104 ret = copy_to_user_flock(arg, &fl64);
7775e9ec
FB		 6105 }
6106 break;
3b46e624 6107
7775e9ec
FB		 6108 case TARGET_F_SETLK:
6109 case TARGET_F_SETLKW:
213d3e9e
PM		 6110 ret = copy_from_user_flock(&fl64, arg);
6111 if (ret) {
6112 return ret;
6113 }
435da5e7 6114 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 6115 break;
3b46e624 6116
7775e9ec 6117 case TARGET_F_GETLK64:
213d3e9e
PM		 6118 ret = copy_from_user_flock64(&fl64, arg);
6119 if (ret) {
6120 return ret;
6121 }
435da5e7 6122 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
43f238d7 6123 if (ret == 0) {
213d3e9e 6124 ret = copy_to_user_flock64(arg, &fl64);
43f238d7 6125 }
9ee1fa2c 6126 break;
7775e9ec
FB		 6127 case TARGET_F_SETLK64:
6128 case TARGET_F_SETLKW64:
213d3e9e
PM		 6129 ret = copy_from_user_flock64(&fl64, arg);
6130 if (ret) {
6131 return ret;
6132 }
435da5e7 6133 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 6134 break;
6135
5f106811 6136 case TARGET_F_GETFL:
435da5e7 6137 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 6138 if (ret >= 0) {
6139 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
6140 }
ffa65c3b
FB		 6141 break;
6142
5f106811 6143 case TARGET_F_SETFL:
435da5e7
PM		 6144 ret = get_errno(safe_fcntl(fd, host_cmd,
6145 target_to_host_bitmask(arg,
6146 fcntl_flags_tbl)));
5f106811
APR		 6147 break;
6148
8d5d3004
AS		 6149#ifdef F_GETOWN_EX
6150 case TARGET_F_GETOWN_EX:
435da5e7 6151 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 6152 if (ret >= 0) {
6153 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
6154 return -TARGET_EFAULT;
6155 target_fox->type = tswap32(fox.type);
6156 target_fox->pid = tswap32(fox.pid);
6157 unlock_user_struct(target_fox, arg, 1);
6158 }
6159 break;
6160#endif
6161
6162#ifdef F_SETOWN_EX
6163 case TARGET_F_SETOWN_EX:
6164 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
6165 return -TARGET_EFAULT;
6166 fox.type = tswap32(target_fox->type);
6167 fox.pid = tswap32(target_fox->pid);
6168 unlock_user_struct(target_fox, arg, 0);
435da5e7 6169 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 6170 break;
6171#endif
6172
5f106811
APR		 6173 case TARGET_F_SETOWN:
6174 case TARGET_F_GETOWN:
6175 case TARGET_F_SETSIG:
6176 case TARGET_F_GETSIG:
7e22e546
UH		 6177 case TARGET_F_SETLEASE:
6178 case TARGET_F_GETLEASE:
7e3b92ec
PM		 6179 case TARGET_F_SETPIPE_SZ:
6180 case TARGET_F_GETPIPE_SZ:
435da5e7 6181 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 6182 break;
6183
7775e9ec 6184 default:
435da5e7 6185 ret = get_errno(safe_fcntl(fd, cmd, arg));
7775e9ec
FB		 6186 break;
6187 }
6188 return ret;
6189}
6190
67867308 6191#ifdef USE_UID16
7775e9ec 6192
67867308
FB		 6193static inline int high2lowuid(int uid)
6194{
6195 if (uid > 65535)
6196 return 65534;
6197 else
6198 return uid;
6199}
6200
6201static inline int high2lowgid(int gid)
6202{
6203 if (gid > 65535)
6204 return 65534;
6205 else
6206 return gid;
6207}
6208
6209static inline int low2highuid(int uid)
6210{
6211 if ((int16_t)uid == -1)
6212 return -1;
6213 else
6214 return uid;
6215}
6216
6217static inline int low2highgid(int gid)
6218{
6219 if ((int16_t)gid == -1)
6220 return -1;
6221 else
6222 return gid;
6223}
0c866a7e
RV		 6224static inline int tswapid(int id)
6225{
6226 return tswap16(id);
6227}
76ca310a
PM		 6228
6229#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
6230
0c866a7e
RV		 6231#else /* !USE_UID16 */
6232static inline int high2lowuid(int uid)
6233{
6234 return uid;
6235}
6236static inline int high2lowgid(int gid)
6237{
6238 return gid;
6239}
6240static inline int low2highuid(int uid)
6241{
6242 return uid;
6243}
6244static inline int low2highgid(int gid)
6245{
6246 return gid;
6247}
6248static inline int tswapid(int id)
6249{
6250 return tswap32(id);
6251}
76ca310a
PM		 6252
6253#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
6254
67867308 6255#endif /* USE_UID16 */
1b6b029e 6256
fd6f7798
PM		 6257/* We must do direct syscalls for setting UID/GID, because we want to
6258 * implement the Linux system call semantics of "change only for this thread",
6259 * not the libc/POSIX semantics of "change for all threads in process".
6260 * (See http://ewontfix.com/17/ for more details.)
6261 * We use the 32-bit version of the syscalls if present; if it is not
6262 * then either the host architecture supports 32-bit UIDs natively with
6263 * the standard syscall, or the 16-bit UID is the best we can do.
6264 */
6265#ifdef __NR_setuid32
6266#define __NR_sys_setuid __NR_setuid32
6267#else
6268#define __NR_sys_setuid __NR_setuid
6269#endif
6270#ifdef __NR_setgid32
6271#define __NR_sys_setgid __NR_setgid32
6272#else
6273#define __NR_sys_setgid __NR_setgid
6274#endif
6275#ifdef __NR_setresuid32
6276#define __NR_sys_setresuid __NR_setresuid32
6277#else
6278#define __NR_sys_setresuid __NR_setresuid
6279#endif
6280#ifdef __NR_setresgid32
6281#define __NR_sys_setresgid __NR_setresgid32
6282#else
6283#define __NR_sys_setresgid __NR_setresgid
6284#endif
6285
6286_syscall1(int, sys_setuid, uid_t, uid)
6287_syscall1(int, sys_setgid, gid_t, gid)
6288_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
6289_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
6290
31e31b8a
FB		 6291void syscall_init(void)
6292{
2ab83ea7
FB		 6293 IOCTLEntry *ie;
6294 const argtype *arg_type;
6295 int size;
b92c47c1 6296 int i;
2ab83ea7 6297
8be656b8
AG		 6298 thunk_init(STRUCT_MAX);
6299
001faf32 6300#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 6301#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 6302#include "syscall_types.h"
6303#undef STRUCT
6304#undef STRUCT_SPECIAL
2ab83ea7 6305
dd6e957a
PM		 6306 /* Build target_to_host_errno_table[] table from
6307 * host_to_target_errno_table[]. */
6308 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
6309 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
6310 }
6311
2ab83ea7
FB		 6312 /* we patch the ioctl size if necessary. We rely on the fact that
6313 no ioctl has all the bits at '1' in the size field */
6314 ie = ioctl_entries;
6315 while (ie->target_cmd != 0) {
6316 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
6317 TARGET_IOC_SIZEMASK) {
6318 arg_type = ie->arg_type;
6319 if (arg_type[0] != TYPE_PTR) {
5fafdf24 6320 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 6321 ie->target_cmd);
6322 exit(1);
6323 }
6324 arg_type++;
6325 size = thunk_type_size(arg_type, 0);
5fafdf24 6326 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 6327 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
6328 (size << TARGET_IOC_SIZESHIFT);
6329 }
b92c47c1 6330
2ab83ea7 6331 /* automatic consistency check if same arch */
872ea0c0
AZ		 6332#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6333 (defined(__x86_64__) && defined(TARGET_X86_64))
6334 if (unlikely(ie->target_cmd != ie->host_cmd)) {
6335 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
6336 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 6337 }
6338#endif
6339 ie++;
6340 }
31e31b8a 6341}
c573ff67 6342
992f48a0 6343#if TARGET_ABI_BITS == 32
ce4defa0
PB		 6344static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
6345{
af325d36 6346#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 6347 return ((uint64_t)word0 << 32) | word1;
6348#else
6349 return ((uint64_t)word1 << 32) | word0;
6350#endif
6351}
992f48a0 6352#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 6353static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
6354{
6355 return word0;
6356}
992f48a0 6357#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 6358
6359#ifdef TARGET_NR_truncate64
992f48a0
BS		 6360static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
6361 abi_long arg2,
6362 abi_long arg3,
6363 abi_long arg4)
ce4defa0 6364{
8bf8e9df 6365 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
ce4defa0
PB		 6366 arg2 = arg3;
6367 arg3 = arg4;
48e515d4 6368 }
ce4defa0
PB		 6369 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
6370}
6371#endif
6372
6373#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 6374static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
6375 abi_long arg2,
6376 abi_long arg3,
6377 abi_long arg4)
ce4defa0 6378{
8bf8e9df 6379 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
ce4defa0
PB		 6380 arg2 = arg3;
6381 arg3 = arg4;
48e515d4 6382 }
ce4defa0
PB		 6383 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
6384}
6385#endif
6386
f4f1e10a
ECL		 6387static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
6388 abi_ulong target_addr)
6389{
6390 struct target_itimerspec *target_itspec;
6391
6392 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
6393 return -TARGET_EFAULT;
6394 }
6395
6396 host_itspec->it_interval.tv_sec =
6397 tswapal(target_itspec->it_interval.tv_sec);
6398 host_itspec->it_interval.tv_nsec =
6399 tswapal(target_itspec->it_interval.tv_nsec);
6400 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
6401 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
6402
6403 unlock_user_struct(target_itspec, target_addr, 1);
6404 return 0;
6405}
6406
6407static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
6408 struct itimerspec *host_its)
6409{
6410 struct target_itimerspec *target_itspec;
6411
6412 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
6413 return -TARGET_EFAULT;
6414 }
6415
6416 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
6417 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
6418
6419 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
6420 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
6421
6422 unlock_user_struct(target_itspec, target_addr, 0);
6423 return 0;
6424}
6425
19f59bce
AM		 6426static inline abi_long target_to_host_timex(struct timex *host_tx,
6427 abi_long target_addr)
6428{
6429 struct target_timex *target_tx;
6430
6431 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
6432 return -TARGET_EFAULT;
6433 }
6434
6435 __get_user(host_tx->modes, &target_tx->modes);
6436 __get_user(host_tx->offset, &target_tx->offset);
6437 __get_user(host_tx->freq, &target_tx->freq);
6438 __get_user(host_tx->maxerror, &target_tx->maxerror);
6439 __get_user(host_tx->esterror, &target_tx->esterror);
6440 __get_user(host_tx->status, &target_tx->status);
6441 __get_user(host_tx->constant, &target_tx->constant);
6442 __get_user(host_tx->precision, &target_tx->precision);
6443 __get_user(host_tx->tolerance, &target_tx->tolerance);
6444 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6445 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6446 __get_user(host_tx->tick, &target_tx->tick);
6447 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6448 __get_user(host_tx->jitter, &target_tx->jitter);
6449 __get_user(host_tx->shift, &target_tx->shift);
6450 __get_user(host_tx->stabil, &target_tx->stabil);
6451 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
6452 __get_user(host_tx->calcnt, &target_tx->calcnt);
6453 __get_user(host_tx->errcnt, &target_tx->errcnt);
6454 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
6455 __get_user(host_tx->tai, &target_tx->tai);
6456
6457 unlock_user_struct(target_tx, target_addr, 0);
6458 return 0;
6459}
6460
6461static inline abi_long host_to_target_timex(abi_long target_addr,
6462 struct timex *host_tx)
6463{
6464 struct target_timex *target_tx;
6465
6466 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
6467 return -TARGET_EFAULT;
6468 }
6469
6470 __put_user(host_tx->modes, &target_tx->modes);
6471 __put_user(host_tx->offset, &target_tx->offset);
6472 __put_user(host_tx->freq, &target_tx->freq);
6473 __put_user(host_tx->maxerror, &target_tx->maxerror);
6474 __put_user(host_tx->esterror, &target_tx->esterror);
6475 __put_user(host_tx->status, &target_tx->status);
6476 __put_user(host_tx->constant, &target_tx->constant);
6477 __put_user(host_tx->precision, &target_tx->precision);
6478 __put_user(host_tx->tolerance, &target_tx->tolerance);
6479 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6480 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6481 __put_user(host_tx->tick, &target_tx->tick);
6482 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6483 __put_user(host_tx->jitter, &target_tx->jitter);
6484 __put_user(host_tx->shift, &target_tx->shift);
6485 __put_user(host_tx->stabil, &target_tx->stabil);
6486 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
6487 __put_user(host_tx->calcnt, &target_tx->calcnt);
6488 __put_user(host_tx->errcnt, &target_tx->errcnt);
6489 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
6490 __put_user(host_tx->tai, &target_tx->tai);
6491
6492 unlock_user_struct(target_tx, target_addr, 1);
6493 return 0;
6494}
6495
6496
c065976f
PM		 6497static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
6498 abi_ulong target_addr)
6499{
6500 struct target_sigevent *target_sevp;
6501
6502 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
6503 return -TARGET_EFAULT;
6504 }
6505
6506 /* This union is awkward on 64 bit systems because it has a 32 bit
6507 * integer and a pointer in it; we follow the conversion approach
6508 * used for handling sigval types in signal.c so the guest should get
6509 * the correct value back even if we did a 64 bit byteswap and it's
6510 * using the 32 bit integer.
6511 */
6512 host_sevp->sigev_value.sival_ptr =
6513 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
6514 host_sevp->sigev_signo =
6515 target_to_host_signal(tswap32(target_sevp->sigev_signo));
6516 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
6517 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
6518
6519 unlock_user_struct(target_sevp, target_addr, 1);
6520 return 0;
6521}
6522
6f6a4032
TM		 6523#if defined(TARGET_NR_mlockall)
6524static inline int target_to_host_mlockall_arg(int arg)
6525{
6526 int result = 0;
6527
6528 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
6529 result |= MCL_CURRENT;
6530 }
6531 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
6532 result |= MCL_FUTURE;
6533 }
6534 return result;
6535}
6536#endif
6537
4f7f8924
AR		 6538#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
6539 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
6540 defined(TARGET_NR_newfstatat))
6a24a778
AZ		 6541static inline abi_long host_to_target_stat64(void *cpu_env,
6542 abi_ulong target_addr,
6543 struct stat *host_st)
6544{
09701199 6545#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 6546 if (((CPUARMState *)cpu_env)->eabi) {
6547 struct target_eabi_stat64 *target_st;
6548
6549 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6550 return -TARGET_EFAULT;
6551 memset(target_st, 0, sizeof(struct target_eabi_stat64));
6552 __put_user(host_st->st_dev, &target_st->st_dev);
6553 __put_user(host_st->st_ino, &target_st->st_ino);
6554#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6555 __put_user(host_st->st_ino, &target_st->__st_ino);
6556#endif
6557 __put_user(host_st->st_mode, &target_st->st_mode);
6558 __put_user(host_st->st_nlink, &target_st->st_nlink);
6559 __put_user(host_st->st_uid, &target_st->st_uid);
6560 __put_user(host_st->st_gid, &target_st->st_gid);
6561 __put_user(host_st->st_rdev, &target_st->st_rdev);
6562 __put_user(host_st->st_size, &target_st->st_size);
6563 __put_user(host_st->st_blksize, &target_st->st_blksize);
6564 __put_user(host_st->st_blocks, &target_st->st_blocks);
6565 __put_user(host_st->st_atime, &target_st->target_st_atime);
6566 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6567 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 6568#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
6569 __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
6570 __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
6571 __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
6572#endif
6a24a778
AZ		 6573 unlock_user_struct(target_st, target_addr, 1);
6574 } else
6575#endif
6576 {
20d155bc 6577#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 6578 struct target_stat64 *target_st;
20d155bc
SW		 6579#else
6580 struct target_stat *target_st;
9d33b76b 6581#endif
6a24a778
AZ		 6582
6583 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6584 return -TARGET_EFAULT;
9d33b76b 6585 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 6586 __put_user(host_st->st_dev, &target_st->st_dev);
6587 __put_user(host_st->st_ino, &target_st->st_ino);
6588#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6589 __put_user(host_st->st_ino, &target_st->__st_ino);
6590#endif
6591 __put_user(host_st->st_mode, &target_st->st_mode);
6592 __put_user(host_st->st_nlink, &target_st->st_nlink);
6593 __put_user(host_st->st_uid, &target_st->st_uid);
6594 __put_user(host_st->st_gid, &target_st->st_gid);
6595 __put_user(host_st->st_rdev, &target_st->st_rdev);
6596 /* XXX: better use of kernel struct */
6597 __put_user(host_st->st_size, &target_st->st_size);
6598 __put_user(host_st->st_blksize, &target_st->st_blksize);
6599 __put_user(host_st->st_blocks, &target_st->st_blocks);
6600 __put_user(host_st->st_atime, &target_st->target_st_atime);
6601 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6602 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 6603#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
6604 __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
6605 __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
6606 __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
6607#endif
6a24a778
AZ		 6608 unlock_user_struct(target_st, target_addr, 1);
6609 }
6610
6611 return 0;
6612}
4f7f8924 6613#endif
6a24a778 6614
efa92184
AR		 6615#if defined(TARGET_NR_statx) && defined(__NR_statx)
6616static inline abi_long host_to_target_statx(struct target_statx *host_stx,
6617 abi_ulong target_addr)
6618{
6619 struct target_statx *target_stx;
6620
6621 if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) {
6622 return -TARGET_EFAULT;
6623 }
6624 memset(target_stx, 0, sizeof(*target_stx));
6625
6626 __put_user(host_stx->stx_mask, &target_stx->stx_mask);
6627 __put_user(host_stx->stx_blksize, &target_stx->stx_blksize);
6628 __put_user(host_stx->stx_attributes, &target_stx->stx_attributes);
6629 __put_user(host_stx->stx_nlink, &target_stx->stx_nlink);
6630 __put_user(host_stx->stx_uid, &target_stx->stx_uid);
6631 __put_user(host_stx->stx_gid, &target_stx->stx_gid);
6632 __put_user(host_stx->stx_mode, &target_stx->stx_mode);
6633 __put_user(host_stx->stx_ino, &target_stx->stx_ino);
6634 __put_user(host_stx->stx_size, &target_stx->stx_size);
6635 __put_user(host_stx->stx_blocks, &target_stx->stx_blocks);
6636 __put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask);
6637 __put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec);
6638 __put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec);
6639 __put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_atime.tv_sec);
6640 __put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_atime.tv_nsec);
6641 __put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_atime.tv_sec);
6642 __put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_atime.tv_nsec);
6643 __put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_atime.tv_sec);
6644 __put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_atime.tv_nsec);
6645 __put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major);
6646 __put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor);
6647 __put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major);
6648 __put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor);
6649
6650 unlock_user_struct(target_stx, target_addr, 1);
6651
6652 return 0;
6653}
6654#endif
6655
6656
bd0c5661
PB		 6657/* ??? Using host futex calls even when target atomic operations
6658 are not really atomic probably breaks things. However implementing
6659 futexes locally would make futexes shared between multiple processes
6660 tricky. However they're probably useless because guest atomic
6661 operations won't work either. */
8fcd3692
BS		 6662static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6663 target_ulong uaddr2, int val3)
bd0c5661
PB		 6664{
6665 struct timespec ts, *pts;
a16aae0c 6666 int base_op;
bd0c5661
PB		 6667
6668 /* ??? We assume FUTEX_* constants are the same on both host
6669 and target. */
a29ccd63 6670#ifdef FUTEX_CMD_MASK
a16aae0c 6671 base_op = op & FUTEX_CMD_MASK;
a29ccd63 6672#else
a16aae0c 6673 base_op = op;
a29ccd63 6674#endif
a16aae0c 6675 switch (base_op) {
bd0c5661 6676 case FUTEX_WAIT:
cce246e0 6677 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 6678 if (timeout) {
6679 pts = &ts;
6680 target_to_host_timespec(pts, timeout);
6681 } else {
6682 pts = NULL;
6683 }
d509eeb1 6684 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
cce246e0 6685 pts, NULL, val3));
bd0c5661 6686 case FUTEX_WAKE:
d509eeb1 6687 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6688 case FUTEX_FD:
d509eeb1 6689 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6690 case FUTEX_REQUEUE:
bd0c5661 6691 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 6692 case FUTEX_WAKE_OP:
6693 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
6694 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
6695 But the prototype takes a `struct timespec *'; insert casts
6696 to satisfy the compiler. We do not need to tswap TIMEOUT
6697 since it's not compared to guest memory. */
6698 pts = (struct timespec *)(uintptr_t) timeout;
d509eeb1
PM		 6699 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6700 g2h(uaddr2),
6701 (base_op == FUTEX_CMP_REQUEUE
6702 ? tswap32(val3)
6703 : val3)));
bd0c5661
PB		 6704 default:
6705 return -TARGET_ENOSYS;
6706 }
6707}
0f0426f3
LV		 6708#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6709static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6710 abi_long handle, abi_long mount_id,
6711 abi_long flags)
6712{
6713 struct file_handle *target_fh;
6714 struct file_handle *fh;
6715 int mid = 0;
6716 abi_long ret;
6717 char *name;
6718 unsigned int size, total_size;
6719
6720 if (get_user_s32(size, handle)) {
6721 return -TARGET_EFAULT;
6722 }
6723
6724 name = lock_user_string(pathname);
6725 if (!name) {
6726 return -TARGET_EFAULT;
6727 }
6728
6729 total_size = sizeof(struct file_handle) + size;
6730 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6731 if (!target_fh) {
6732 unlock_user(name, pathname, 0);
6733 return -TARGET_EFAULT;
6734 }
6735
6736 fh = g_malloc0(total_size);
6737 fh->handle_bytes = size;
6738
6739 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6740 unlock_user(name, pathname, 0);
6741
6742 /* man name_to_handle_at(2):
6743 * Other than the use of the handle_bytes field, the caller should treat
6744 * the file_handle structure as an opaque data type
6745 */
6746
6747 memcpy(target_fh, fh, total_size);
6748 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6749 target_fh->handle_type = tswap32(fh->handle_type);
6750 g_free(fh);
6751 unlock_user(target_fh, handle, total_size);
6752
6753 if (put_user_s32(mid, mount_id)) {
6754 return -TARGET_EFAULT;
6755 }
6756
6757 return ret;
6758
6759}
6760#endif
6761
6762#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6763static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6764 abi_long flags)
6765{
6766 struct file_handle *target_fh;
6767 struct file_handle *fh;
6768 unsigned int size, total_size;
6769 abi_long ret;
6770
6771 if (get_user_s32(size, handle)) {
6772 return -TARGET_EFAULT;
6773 }
6774
6775 total_size = sizeof(struct file_handle) + size;
6776 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6777 if (!target_fh) {
6778 return -TARGET_EFAULT;
6779 }
6780
e9d49d51 6781 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 6782 fh->handle_bytes = size;
6783 fh->handle_type = tswap32(target_fh->handle_type);
6784
6785 ret = get_errno(open_by_handle_at(mount_fd, fh,
6786 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6787
6788 g_free(fh);
6789
6790 unlock_user(target_fh, handle, total_size);
6791
6792 return ret;
6793}
6794#endif
bd0c5661 6795
e36800c9
LV		 6796#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6797
e36800c9
LV		 6798static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6799{
6800 int host_flags;
6801 target_sigset_t *target_mask;
6802 sigset_t host_mask;
6803 abi_long ret;
6804
6805 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6806 return -TARGET_EINVAL;
6807 }
6808 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6809 return -TARGET_EFAULT;
6810 }
6811
6812 target_to_host_sigset(&host_mask, target_mask);
6813
6814 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6815
6816 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6817 if (ret >= 0) {
6818 fd_trans_register(ret, &target_signalfd_trans);
6819 }
6820
6821 unlock_user_struct(target_mask, mask, 0);
6822
6823 return ret;
6824}
6825#endif
6826
1d9d8b55
PB		 6827/* Map host to target signal numbers for the wait family of syscalls.
6828 Assume all other status bits are the same. */
a05c6409 6829int host_to_target_waitstatus(int status)
1d9d8b55
PB		 6830{
6831 if (WIFSIGNALED(status)) {
6832 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6833 }
6834 if (WIFSTOPPED(status)) {
6835 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6836 | (status & 0xff);
6837 }
6838 return status;
6839}
6840
76b94245
WVS		 6841static int open_self_cmdline(void *cpu_env, int fd)
6842{
29a0af61 6843 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
58de8b96
AS		 6844 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
6845 int i;
76b94245 6846
58de8b96
AS		 6847 for (i = 0; i < bprm->argc; i++) {
6848 size_t len = strlen(bprm->argv[i]) + 1;
76b94245 6849
58de8b96 6850 if (write(fd, bprm->argv[i], len) != len) {
76b94245 6851 return -1;
76b94245
WVS		 6852 }
6853 }
6854
58de8b96 6855 return 0;
76b94245
WVS		 6856}
6857
36c08d49
AG		 6858static int open_self_maps(void *cpu_env, int fd)
6859{
29a0af61 6860 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 6861 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 6862 FILE *fp;
6863 char *line = NULL;
6864 size_t len = 0;
6865 ssize_t read;
6866
6867 fp = fopen("/proc/self/maps", "r");
6868 if (fp == NULL) {
a3ca7bb2 6869 return -1;
1a49ef2a 6870 }
36c08d49 6871
1a49ef2a
AG		 6872 while ((read = getline(&line, &len, fp)) != -1) {
6873 int fields, dev_maj, dev_min, inode;
6874 uint64_t min, max, offset;
6875 char flag_r, flag_w, flag_x, flag_p;
6876 char path[512] = "";
6877 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6878 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6879 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6880
6881 if ((fields < 10) || (fields > 11)) {
6882 continue;
6883 }
d67f4aaa
MI		 6884 if (h2g_valid(min)) {
6885 int flags = page_get_flags(h2g(min));
ebf9a363 6886 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1;
d67f4aaa
MI		 6887 if (page_check_range(h2g(min), max - min, flags) == -1) {
6888 continue;
6889 }
6890 if (h2g(min) == ts->info->stack_limit) {
6891 pstrcpy(path, sizeof(path), " [stack]");
6892 }
3e23de15 6893 dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
e24fed4e 6894 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
d67f4aaa 6895 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
1a49ef2a 6896 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 6897 path[0] ? " " : "", path);
1a49ef2a
AG		 6898 }
6899 }
6900
6901 free(line);
6902 fclose(fp);
6903
36c08d49
AG		 6904 return 0;
6905}
6906
480b8e7d
AG		 6907static int open_self_stat(void *cpu_env, int fd)
6908{
29a0af61 6909 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 6910 TaskState *ts = cpu->opaque;
480b8e7d
AG		 6911 abi_ulong start_stack = ts->info->start_stack;
6912 int i;
6913
6914 for (i = 0; i < 44; i++) {
6915 char buf[128];
6916 int len;
6917 uint64_t val = 0;
6918
e0e65bee
FE		 6919 if (i == 0) {
6920 /* pid */
6921 val = getpid();
6922 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6923 } else if (i == 1) {
6924 /* app name */
6925 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6926 } else if (i == 27) {
6927 /* stack bottom */
6928 val = start_stack;
6929 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6930 } else {
6931 /* for the rest, there is MasterCard */
6932 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 6933 }
e0e65bee 6934
480b8e7d
AG		 6935 len = strlen(buf);
6936 if (write(fd, buf, len) != len) {
6937 return -1;
6938 }
6939 }
6940
6941 return 0;
6942}
6943
257450ee
AG		 6944static int open_self_auxv(void *cpu_env, int fd)
6945{
29a0af61 6946 CPUState *cpu = env_cpu((CPUArchState *)cpu_env);
0429a971 6947 TaskState *ts = cpu->opaque;
257450ee
AG		 6948 abi_ulong auxv = ts->info->saved_auxv;
6949 abi_ulong len = ts->info->auxv_len;
6950 char *ptr;
6951
6952 /*
6953 * Auxiliary vector is stored in target process stack.
6954 * read in whole auxv vector and copy it to file
6955 */
6956 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6957 if (ptr != NULL) {
6958 while (len > 0) {
6959 ssize_t r;
6960 r = write(fd, ptr, len);
6961 if (r <= 0) {
6962 break;
6963 }
6964 len -= r;
6965 ptr += r;
6966 }
6967 lseek(fd, 0, SEEK_SET);
6968 unlock_user(ptr, auxv, len);
6969 }
6970
6971 return 0;
6972}
6973
463d8e73
AS		 6974static int is_proc_myself(const char *filename, const char *entry)
6975{
6976 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6977 filename += strlen("/proc/");
6978 if (!strncmp(filename, "self/", strlen("self/"))) {
6979 filename += strlen("self/");
6980 } else if (*filename >= '1' && *filename <= '9') {
6981 char myself[80];
6982 snprintf(myself, sizeof(myself), "%d/", getpid());
6983 if (!strncmp(filename, myself, strlen(myself))) {
6984 filename += strlen(myself);
6985 } else {
6986 return 0;
6987 }
6988 } else {
6989 return 0;
6990 }
6991 if (!strcmp(filename, entry)) {
6992 return 1;
6993 }
6994 }
6995 return 0;
6996}
6997
fff69382 6998#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \
4ab6713e 6999 defined(TARGET_SPARC) || defined(TARGET_M68K)
de6b9933
LV		 7000static int is_proc(const char *filename, const char *entry)
7001{
7002 return strcmp(filename, entry) == 0;
7003}
fff69382 7004#endif
de6b9933 7005
fff69382 7006#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
de6b9933
LV		 7007static int open_net_route(void *cpu_env, int fd)
7008{
7009 FILE *fp;
7010 char *line = NULL;
7011 size_t len = 0;
7012 ssize_t read;
7013
7014 fp = fopen("/proc/net/route", "r");
7015 if (fp == NULL) {
a3ca7bb2 7016 return -1;
de6b9933
LV		 7017 }
7018
7019 /* read header */
7020
7021 read = getline(&line, &len, fp);
7022 dprintf(fd, "%s", line);
7023
7024 /* read routes */
7025
7026 while ((read = getline(&line, &len, fp)) != -1) {
7027 char iface[16];
7028 uint32_t dest, gw, mask;
7029 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
9d0bd0cd
PM		 7030 int fields;
7031
7032 fields = sscanf(line,
7033 "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
7034 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
7035 &mask, &mtu, &window, &irtt);
7036 if (fields != 11) {
7037 continue;
7038 }
de6b9933
LV		 7039 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
7040 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
7041 metric, tswap32(mask), mtu, window, irtt);
7042 }
7043
7044 free(line);
7045 fclose(fp);
7046
7047 return 0;
7048}
7049#endif
7050
fff69382
LV		 7051#if defined(TARGET_SPARC)
7052static int open_cpuinfo(void *cpu_env, int fd)
7053{
7054 dprintf(fd, "type\t\t: sun4u\n");
7055 return 0;
7056}
7057#endif
7058
4ab6713e
LV		 7059#if defined(TARGET_M68K)
7060static int open_hardware(void *cpu_env, int fd)
7061{
7062 dprintf(fd, "Model:\t\tqemu-m68k\n");
7063 return 0;
7064}
7065#endif
7066
0b2effd7 7067static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 7068{
7069 struct fake_open {
7070 const char *filename;
7071 int (*fill)(void *cpu_env, int fd);
de6b9933 7072 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 7073 };
7074 const struct fake_open *fake_open;
7075 static const struct fake_open fakes[] = {
de6b9933
LV		 7076 { "maps", open_self_maps, is_proc_myself },
7077 { "stat", open_self_stat, is_proc_myself },
7078 { "auxv", open_self_auxv, is_proc_myself },
76b94245 7079 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 7080#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
7081 { "/proc/net/route", open_net_route, is_proc },
fff69382
LV		 7082#endif
7083#if defined(TARGET_SPARC)
7084 { "/proc/cpuinfo", open_cpuinfo, is_proc },
4ab6713e
LV		 7085#endif
7086#if defined(TARGET_M68K)
7087 { "/proc/hardware", open_hardware, is_proc },
de6b9933
LV		 7088#endif
7089 { NULL, NULL, NULL }
3be14d05
AG		 7090 };
7091
aa07f5ec
MO		 7092 if (is_proc_myself(pathname, "exe")) {
7093 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 7094 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 7095 }
7096
3be14d05 7097 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 7098 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 7099 break;
7100 }
7101 }
7102
7103 if (fake_open->filename) {
7104 const char *tmpdir;
7105 char filename[PATH_MAX];
7106 int fd, r;
7107
7108 /* create temporary file to map stat to */
7109 tmpdir = getenv("TMPDIR");
7110 if (!tmpdir)
7111 tmpdir = "/tmp";
7112 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
7113 fd = mkstemp(filename);
7114 if (fd < 0) {
7115 return fd;
7116 }
7117 unlink(filename);
7118
7119 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 7120 int e = errno;
3be14d05 7121 close(fd);
a3ca7bb2 7122 errno = e;
3be14d05
AG		 7123 return r;
7124 }
7125 lseek(fd, 0, SEEK_SET);
7126
7127 return fd;
7128 }
7129
c10a0738 7130 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 7131}
7132
aecc8861
AG		 7133#define TIMER_MAGIC 0x0caf0000
7134#define TIMER_MAGIC_MASK 0xffff0000
7135
7136/* Convert QEMU provided timer ID back to internal 16bit index format */
7137static target_timer_t get_timer_id(abi_long arg)
7138{
7139 target_timer_t timerid = arg;
7140
7141 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
7142 return -TARGET_EINVAL;
7143 }
7144
7145 timerid &= 0xffff;
7146
7147 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
7148 return -TARGET_EINVAL;
7149 }
7150
7151 return timerid;
7152}
7153
2e0a8713
ST		 7154static int target_to_host_cpu_mask(unsigned long *host_mask,
7155 size_t host_size,
7156 abi_ulong target_addr,
7157 size_t target_size)
7158{
7159 unsigned target_bits = sizeof(abi_ulong) * 8;
7160 unsigned host_bits = sizeof(*host_mask) * 8;
7161 abi_ulong *target_mask;
7162 unsigned i, j;
7163
7164 assert(host_size >= target_size);
7165
7166 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
7167 if (!target_mask) {
7168 return -TARGET_EFAULT;
7169 }
7170 memset(host_mask, 0, host_size);
7171
7172 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
7173 unsigned bit = i * target_bits;
7174 abi_ulong val;
7175
7176 __get_user(val, &target_mask[i]);
7177 for (j = 0; j < target_bits; j++, bit++) {
7178 if (val & (1UL << j)) {
7179 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
7180 }
7181 }
7182 }
7183
7184 unlock_user(target_mask, target_addr, 0);
7185 return 0;
7186}
7187
7188static int host_to_target_cpu_mask(const unsigned long *host_mask,
7189 size_t host_size,
7190 abi_ulong target_addr,
7191 size_t target_size)
7192{
7193 unsigned target_bits = sizeof(abi_ulong) * 8;
7194 unsigned host_bits = sizeof(*host_mask) * 8;
7195 abi_ulong *target_mask;
7196 unsigned i, j;
7197
7198 assert(host_size >= target_size);
7199
7200 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
7201 if (!target_mask) {
7202 return -TARGET_EFAULT;
7203 }
7204
7205 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
7206 unsigned bit = i * target_bits;
7207 abi_ulong val = 0;
7208
7209 for (j = 0; j < target_bits; j++, bit++) {
7210 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
7211 val |= 1UL << j;
7212 }
7213 }
7214 __put_user(val, &target_mask[i]);
7215 }
7216
7217 unlock_user(target_mask, target_addr, target_size);
7218 return 0;
7219}
7220
dc1ce18b
RH		 7221/* This is an internal helper for do_syscall so that it is easier
7222 * to have a single return point, so that actions, such as logging
7223 * of syscall results, can be performed.
7224 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
7225 */
7226static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
7227 abi_long arg2, abi_long arg3, abi_long arg4,
7228 abi_long arg5, abi_long arg6, abi_long arg7,
7229 abi_long arg8)
31e31b8a 7230{
29a0af61 7231 CPUState *cpu = env_cpu(cpu_env);
992f48a0 7232 abi_long ret;
4f7f8924
AR		 7233#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
7234 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
efa92184
AR		 7235 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \
7236 || defined(TARGET_NR_statx)
31e31b8a 7237 struct stat st;
4f7f8924
AR		 7238#endif
7239#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
7240 || defined(TARGET_NR_fstatfs)
56c8f68f 7241 struct statfs stfs;
4f7f8924 7242#endif
53a5960a 7243 void *p;
3b46e624 7244
31e31b8a
FB		 7245 switch(num) {
7246 case TARGET_NR_exit:
9b056fcc
AF		 7247 /* In old applications this may be used to implement _exit(2).
7248 However in threaded applictions it is used for thread termination,
7249 and _exit_group is used for application termination.
7250 Do thread termination if we have more then one thread. */
a0995886
TB		 7251
7252 if (block_signals()) {
72eb7ea8 7253 return -TARGET_ERESTARTSYS;
a0995886
TB		 7254 }
7255
dd1f6349
AB		 7256 cpu_list_lock();
7257
bdc44640 7258 if (CPU_NEXT(first_cpu)) {
9b056fcc 7259 TaskState *ts;
9b056fcc 7260
9b056fcc 7261 /* Remove the CPU from the list. */
068a5ea0 7262 QTAILQ_REMOVE_RCU(&cpus, cpu, node);
dd1f6349 7263
9b056fcc 7264 cpu_list_unlock();
dd1f6349 7265
0429a971 7266 ts = cpu->opaque;
9b056fcc
AF		 7267 if (ts->child_tidptr) {
7268 put_user_u32(0, ts->child_tidptr);
7269 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
7270 NULL, NULL, 0);
7271 }
a2247f8e 7272 thread_cpu = NULL;
0429a971 7273 object_unref(OBJECT(cpu));
9b056fcc 7274 g_free(ts);
70903763 7275 rcu_unregister_thread();
9b056fcc
AF		 7276 pthread_exit(NULL);
7277 }
dd1f6349
AB		 7278
7279 cpu_list_unlock();
708b6a64 7280 preexit_cleanup(cpu_env, arg1);
c2764719 7281 _exit(arg1);
72eb7ea8 7282 return 0; /* avoid warning */
31e31b8a 7283 case TARGET_NR_read:
ba584f1d
AS		 7284 if (arg2 == 0 && arg3 == 0) {
7285 return get_errno(safe_read(arg1, 0, 0));
72eb7ea8 7286 } else {
38d840e6 7287 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
2852aafd 7288 return -TARGET_EFAULT;
50afd02b 7289 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 7290 if (ret >= 0 &&
5d4d3665
LV		 7291 fd_trans_host_to_target_data(arg1)) {
7292 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 7293 }
38d840e6
AJ		 7294 unlock_user(p, arg2, ret);
7295 }
72eb7ea8 7296 return ret;
31e31b8a 7297 case TARGET_NR_write:
58cfa6c2
TGJ		 7298 if (arg2 == 0 && arg3 == 0) {
7299 return get_errno(safe_write(arg1, 0, 0));
7300 }
579a97f7 7301 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
2852aafd 7302 return -TARGET_EFAULT;
04b9bcf9
LV		 7303 if (fd_trans_target_to_host_data(arg1)) {
7304 void *copy = g_malloc(arg3);
7305 memcpy(copy, p, arg3);
7306 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
7307 if (ret >= 0) {
7308 ret = get_errno(safe_write(arg1, copy, ret));
7309 }
7310 g_free(copy);
7311 } else {
7312 ret = get_errno(safe_write(arg1, p, arg3));
7313 }
53a5960a 7314 unlock_user(p, arg2, 0);
72eb7ea8
RH		 7315 return ret;
7316
704eff6c 7317#ifdef TARGET_NR_open
31e31b8a 7318 case TARGET_NR_open:
2f619698 7319 if (!(p = lock_user_string(arg1)))
2852aafd 7320 return -TARGET_EFAULT;
0b2effd7
RV		 7321 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
7322 target_to_host_bitmask(arg2, fcntl_flags_tbl),
7323 arg3));
e36800c9 7324 fd_trans_unregister(ret);
53a5960a 7325 unlock_user(p, arg1, 0);
72eb7ea8 7326 return ret;
704eff6c 7327#endif
82424832 7328 case TARGET_NR_openat:
579a97f7 7329 if (!(p = lock_user_string(arg2)))
2852aafd 7330 return -TARGET_EFAULT;
0b2effd7
RV		 7331 ret = get_errno(do_openat(cpu_env, arg1, p,
7332 target_to_host_bitmask(arg3, fcntl_flags_tbl),
7333 arg4));
e36800c9 7334 fd_trans_unregister(ret);
579a97f7 7335 unlock_user(p, arg2, 0);
72eb7ea8 7336 return ret;
0f0426f3
LV		 7337#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7338 case TARGET_NR_name_to_handle_at:
7339 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
72eb7ea8 7340 return ret;
0f0426f3
LV		 7341#endif
7342#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7343 case TARGET_NR_open_by_handle_at:
7344 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 7345 fd_trans_unregister(ret);
72eb7ea8 7346 return ret;
0f0426f3 7347#endif
31e31b8a 7348 case TARGET_NR_close:
e36800c9 7349 fd_trans_unregister(arg1);
72eb7ea8
RH		 7350 return get_errno(close(arg1));
7351
31e31b8a 7352 case TARGET_NR_brk:
72eb7ea8 7353 return do_brk(arg1);
704eff6c 7354#ifdef TARGET_NR_fork
31e31b8a 7355 case TARGET_NR_fork:
72eb7ea8 7356 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
704eff6c 7357#endif
e5febef5 7358#ifdef TARGET_NR_waitpid
31e31b8a
FB		 7359 case TARGET_NR_waitpid:
7360 {
53a5960a 7361 int status;
4af80a37 7362 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 7363 if (!is_error(ret) && arg2 && ret
1d9d8b55 7364 && put_user_s32(host_to_target_waitstatus(status), arg2))
2852aafd 7365 return -TARGET_EFAULT;
31e31b8a 7366 }
72eb7ea8 7367 return ret;
e5febef5 7368#endif
f0cbb613
PB		 7369#ifdef TARGET_NR_waitid
7370 case TARGET_NR_waitid:
7371 {
7372 siginfo_t info;
7373 info.si_pid = 0;
4af80a37 7374 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 7375 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 7376 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
2852aafd 7377 return -TARGET_EFAULT;
f0cbb613 7378 host_to_target_siginfo(p, &info);
c227f099 7379 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 7380 }
7381 }
72eb7ea8 7382 return ret;
f0cbb613 7383#endif
7a3148a9 7384#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 7385 case TARGET_NR_creat:
579a97f7 7386 if (!(p = lock_user_string(arg1)))
2852aafd 7387 return -TARGET_EFAULT;
53a5960a 7388 ret = get_errno(creat(p, arg2));
e36800c9 7389 fd_trans_unregister(ret);
53a5960a 7390 unlock_user(p, arg1, 0);
72eb7ea8 7391 return ret;
7a3148a9 7392#endif
704eff6c 7393#ifdef TARGET_NR_link
31e31b8a 7394 case TARGET_NR_link:
53a5960a
PB		 7395 {
7396 void * p2;
7397 p = lock_user_string(arg1);
7398 p2 = lock_user_string(arg2);
579a97f7
FB		 7399 if (!p || !p2)
7400 ret = -TARGET_EFAULT;
7401 else
7402 ret = get_errno(link(p, p2));
53a5960a
PB		 7403 unlock_user(p2, arg2, 0);
7404 unlock_user(p, arg1, 0);
7405 }
72eb7ea8 7406 return ret;
704eff6c 7407#endif
c0d472b1 7408#if defined(TARGET_NR_linkat)
64f0ce4c 7409 case TARGET_NR_linkat:
64f0ce4c
TS		 7410 {
7411 void * p2 = NULL;
579a97f7 7412 if (!arg2 || !arg4)
2852aafd 7413 return -TARGET_EFAULT;
64f0ce4c
TS		 7414 p = lock_user_string(arg2);
7415 p2 = lock_user_string(arg4);
579a97f7 7416 if (!p || !p2)
0da46a6e 7417 ret = -TARGET_EFAULT;
64f0ce4c 7418 else
c0d472b1 7419 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 7420 unlock_user(p, arg2, 0);
7421 unlock_user(p2, arg4, 0);
64f0ce4c 7422 }
72eb7ea8 7423 return ret;
64f0ce4c 7424#endif
704eff6c 7425#ifdef TARGET_NR_unlink
31e31b8a 7426 case TARGET_NR_unlink:
579a97f7 7427 if (!(p = lock_user_string(arg1)))
2852aafd 7428 return -TARGET_EFAULT;
53a5960a
PB		 7429 ret = get_errno(unlink(p));
7430 unlock_user(p, arg1, 0);
72eb7ea8 7431 return ret;
704eff6c 7432#endif
c0d472b1 7433#if defined(TARGET_NR_unlinkat)
8170f56b 7434 case TARGET_NR_unlinkat:
579a97f7 7435 if (!(p = lock_user_string(arg2)))
2852aafd 7436 return -TARGET_EFAULT;
c0d472b1 7437 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 7438 unlock_user(p, arg2, 0);
72eb7ea8 7439 return ret;
b7d35e65 7440#endif
31e31b8a 7441 case TARGET_NR_execve:
7854b056
FB		 7442 {
7443 char **argp, **envp;
f7341ff4 7444 int argc, envc;
992f48a0
BS		 7445 abi_ulong gp;
7446 abi_ulong guest_argp;
7447 abi_ulong guest_envp;
7448 abi_ulong addr;
7854b056 7449 char **q;
a6f79cc9 7450 int total_size = 0;
7854b056 7451
f7341ff4 7452 argc = 0;
53a5960a 7453 guest_argp = arg2;
da94d263 7454 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7455 if (get_user_ual(addr, gp))
2852aafd 7456 return -TARGET_EFAULT;
03aa1976 7457 if (!addr)
2f619698 7458 break;
7854b056 7459 argc++;
2f619698 7460 }
f7341ff4 7461 envc = 0;
53a5960a 7462 guest_envp = arg3;
da94d263 7463 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7464 if (get_user_ual(addr, gp))
2852aafd 7465 return -TARGET_EFAULT;
03aa1976 7466 if (!addr)
2f619698 7467 break;
7854b056 7468 envc++;
2f619698 7469 }
7854b056 7470
b936cb50
PP		 7471 argp = g_new0(char *, argc + 1);
7472 envp = g_new0(char *, envc + 1);
7854b056 7473
da94d263 7474 for (gp = guest_argp, q = argp; gp;
992f48a0 7475 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7476 if (get_user_ual(addr, gp))
7477 goto execve_efault;
53a5960a
PB		 7478 if (!addr)
7479 break;
2f619698
FB		 7480 if (!(*q = lock_user_string(addr)))
7481 goto execve_efault;
a6f79cc9 7482 total_size += strlen(*q) + 1;
53a5960a 7483 }
f7341ff4
FB		 7484 *q = NULL;
7485
da94d263 7486 for (gp = guest_envp, q = envp; gp;
992f48a0 7487 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7488 if (get_user_ual(addr, gp))
7489 goto execve_efault;
53a5960a
PB		 7490 if (!addr)
7491 break;
2f619698
FB		 7492 if (!(*q = lock_user_string(addr)))
7493 goto execve_efault;
a6f79cc9 7494 total_size += strlen(*q) + 1;
53a5960a 7495 }
f7341ff4 7496 *q = NULL;
7854b056 7497
2f619698
FB		 7498 if (!(p = lock_user_string(arg1)))
7499 goto execve_efault;
ffdcbe22
TB		 7500 /* Although execve() is not an interruptible syscall it is
7501 * a special case where we must use the safe_syscall wrapper:
7502 * if we allow a signal to happen before we make the host
7503 * syscall then we will 'lose' it, because at the point of
7504 * execve the process leaves QEMU's control. So we use the
7505 * safe syscall wrapper to ensure that we either take the
7506 * signal as a guest signal, or else it does not happen
7507 * before the execve completes and makes it the other
7508 * program's problem.
7509 */
7510 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 7511 unlock_user(p, arg1, 0);
7512
2f619698
FB		 7513 goto execve_end;
7514
7515 execve_efault:
7516 ret = -TARGET_EFAULT;
7517
7518 execve_end:
53a5960a 7519 for (gp = guest_argp, q = argp; *q;
992f48a0 7520 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7521 if (get_user_ual(addr, gp)
7522 || !addr)
7523 break;
53a5960a
PB		 7524 unlock_user(*q, addr, 0);
7525 }
7526 for (gp = guest_envp, q = envp; *q;
992f48a0 7527 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7528 if (get_user_ual(addr, gp)
7529 || !addr)
7530 break;
53a5960a
PB		 7531 unlock_user(*q, addr, 0);
7532 }
b936cb50
PP		 7533
7534 g_free(argp);
7535 g_free(envp);
7854b056 7536 }
72eb7ea8 7537 return ret;
31e31b8a 7538 case TARGET_NR_chdir:
579a97f7 7539 if (!(p = lock_user_string(arg1)))
2852aafd 7540 return -TARGET_EFAULT;
53a5960a
PB		 7541 ret = get_errno(chdir(p));
7542 unlock_user(p, arg1, 0);
72eb7ea8 7543 return ret;
a315a145 7544#ifdef TARGET_NR_time
31e31b8a
FB		 7545 case TARGET_NR_time:
7546 {
53a5960a
PB		 7547 time_t host_time;
7548 ret = get_errno(time(&host_time));
2f619698
FB		 7549 if (!is_error(ret)
7550 && arg1
7551 && put_user_sal(host_time, arg1))
2852aafd 7552 return -TARGET_EFAULT;
31e31b8a 7553 }
72eb7ea8 7554 return ret;
a315a145 7555#endif
704eff6c 7556#ifdef TARGET_NR_mknod
31e31b8a 7557 case TARGET_NR_mknod:
579a97f7 7558 if (!(p = lock_user_string(arg1)))
2852aafd 7559 return -TARGET_EFAULT;
53a5960a
PB		 7560 ret = get_errno(mknod(p, arg2, arg3));
7561 unlock_user(p, arg1, 0);
72eb7ea8 7562 return ret;
704eff6c 7563#endif
c0d472b1 7564#if defined(TARGET_NR_mknodat)
75ac37a0 7565 case TARGET_NR_mknodat:
579a97f7 7566 if (!(p = lock_user_string(arg2)))
2852aafd 7567 return -TARGET_EFAULT;
c0d472b1 7568 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 7569 unlock_user(p, arg2, 0);
72eb7ea8 7570 return ret;
75ac37a0 7571#endif
704eff6c 7572#ifdef TARGET_NR_chmod
31e31b8a 7573 case TARGET_NR_chmod:
579a97f7 7574 if (!(p = lock_user_string(arg1)))
2852aafd 7575 return -TARGET_EFAULT;
53a5960a
PB		 7576 ret = get_errno(chmod(p, arg2));
7577 unlock_user(p, arg1, 0);
72eb7ea8 7578 return ret;
704eff6c 7579#endif
4f7f8924 7580#ifdef TARGET_NR_lseek
31e31b8a 7581 case TARGET_NR_lseek:
72eb7ea8 7582 return get_errno(lseek(arg1, arg2, arg3));
4f7f8924 7583#endif
9231733a
RH		 7584#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
7585 /* Alpha specific */
7a3148a9 7586 case TARGET_NR_getxpid:
9231733a 7587 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
72eb7ea8 7588 return get_errno(getpid());
7a3148a9 7589#endif
9231733a
RH		 7590#ifdef TARGET_NR_getpid
7591 case TARGET_NR_getpid:
72eb7ea8 7592 return get_errno(getpid());
9231733a 7593#endif
31e31b8a 7594 case TARGET_NR_mount:
356d771b
PB		 7595 {
7596 /* need to look at the data field */
7597 void *p2, *p3;
7598
7599 if (arg1) {
7600 p = lock_user_string(arg1);
7601 if (!p) {
2852aafd 7602 return -TARGET_EFAULT;
356d771b
PB		 7603 }
7604 } else {
7605 p = NULL;
7606 }
7607
7608 p2 = lock_user_string(arg2);
7609 if (!p2) {
7610 if (arg1) {
7611 unlock_user(p, arg1, 0);
7612 }
2852aafd 7613 return -TARGET_EFAULT;
356d771b
PB		 7614 }
7615
7616 if (arg3) {
7617 p3 = lock_user_string(arg3);
7618 if (!p3) {
7619 if (arg1) {
579a97f7 7620 unlock_user(p, arg1, 0);
356d771b
PB		 7621 }
7622 unlock_user(p2, arg2, 0);
2852aafd 7623 return -TARGET_EFAULT;
356d771b
PB		 7624 }
7625 } else {
7626 p3 = NULL;
7627 }
7628
7629 /* FIXME - arg5 should be locked, but it isn't clear how to
7630 * do that since it's not guaranteed to be a NULL-terminated
7631 * string.
7632 */
7633 if (!arg5) {
7634 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7635 } else {
7636 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7637 }
7638 ret = get_errno(ret);
7639
7640 if (arg1) {
7641 unlock_user(p, arg1, 0);
7642 }
7643 unlock_user(p2, arg2, 0);
7644 if (arg3) {
7645 unlock_user(p3, arg3, 0);
7646 }
7647 }
72eb7ea8 7648 return ret;
e5febef5 7649#ifdef TARGET_NR_umount
31e31b8a 7650 case TARGET_NR_umount:
579a97f7 7651 if (!(p = lock_user_string(arg1)))
2852aafd 7652 return -TARGET_EFAULT;
53a5960a
PB		 7653 ret = get_errno(umount(p));
7654 unlock_user(p, arg1, 0);
72eb7ea8 7655 return ret;
e5febef5 7656#endif
7a3148a9 7657#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 7658 case TARGET_NR_stime:
7659 {
53a5960a 7660 time_t host_time;
2f619698 7661 if (get_user_sal(host_time, arg1))
2852aafd 7662 return -TARGET_EFAULT;
72eb7ea8 7663 return get_errno(stime(&host_time));
31e31b8a 7664 }
7a3148a9 7665#endif
7a3148a9 7666#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a 7667 case TARGET_NR_alarm:
72eb7ea8 7668 return alarm(arg1);
7a3148a9 7669#endif
7a3148a9 7670#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 7671 case TARGET_NR_pause:
f59ec606
TB		 7672 if (!block_signals()) {
7673 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7674 }
72eb7ea8 7675 return -TARGET_EINTR;
7a3148a9 7676#endif
e5febef5 7677#ifdef TARGET_NR_utime
31e31b8a 7678 case TARGET_NR_utime:
ebc05488 7679 {
53a5960a
PB		 7680 struct utimbuf tbuf, *host_tbuf;
7681 struct target_utimbuf *target_tbuf;
7682 if (arg2) {
579a97f7 7683 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
2852aafd 7684 return -TARGET_EFAULT;
cbb21eed
MB		 7685 tbuf.actime = tswapal(target_tbuf->actime);
7686 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 7687 unlock_user_struct(target_tbuf, arg2, 0);
7688 host_tbuf = &tbuf;
f72e8ff4 7689 } else {
53a5960a 7690 host_tbuf = NULL;
f72e8ff4 7691 }
579a97f7 7692 if (!(p = lock_user_string(arg1)))
2852aafd 7693 return -TARGET_EFAULT;
53a5960a
PB		 7694 ret = get_errno(utime(p, host_tbuf));
7695 unlock_user(p, arg1, 0);
ebc05488 7696 }
72eb7ea8 7697 return ret;
e5febef5 7698#endif
704eff6c 7699#ifdef TARGET_NR_utimes
978a66ff
FB		 7700 case TARGET_NR_utimes:
7701 {
978a66ff 7702 struct timeval *tvp, tv[2];
53a5960a 7703 if (arg2) {
788f5ec4
TS		 7704 if (copy_from_user_timeval(&tv[0], arg2)
7705 || copy_from_user_timeval(&tv[1],
7706 arg2 + sizeof(struct target_timeval)))
2852aafd 7707 return -TARGET_EFAULT;
978a66ff
FB		 7708 tvp = tv;
7709 } else {
7710 tvp = NULL;
7711 }
579a97f7 7712 if (!(p = lock_user_string(arg1)))
2852aafd 7713 return -TARGET_EFAULT;
53a5960a
PB		 7714 ret = get_errno(utimes(p, tvp));
7715 unlock_user(p, arg1, 0);
978a66ff 7716 }
72eb7ea8 7717 return ret;
704eff6c 7718#endif
c0d472b1 7719#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 7720 case TARGET_NR_futimesat:
7721 {
7722 struct timeval *tvp, tv[2];
7723 if (arg3) {
7724 if (copy_from_user_timeval(&tv[0], arg3)
7725 || copy_from_user_timeval(&tv[1],
7726 arg3 + sizeof(struct target_timeval)))
2852aafd 7727 return -TARGET_EFAULT;
ac8a6556
AZ		 7728 tvp = tv;
7729 } else {
7730 tvp = NULL;
7731 }
2852aafd
RH		 7732 if (!(p = lock_user_string(arg2))) {
7733 return -TARGET_EFAULT;
7734 }
c0d472b1 7735 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 7736 unlock_user(p, arg2, 0);
7737 }
72eb7ea8 7738 return ret;
ac8a6556 7739#endif
704eff6c 7740#ifdef TARGET_NR_access
31e31b8a 7741 case TARGET_NR_access:
2852aafd
RH		 7742 if (!(p = lock_user_string(arg1))) {
7743 return -TARGET_EFAULT;
7744 }
719f908e 7745 ret = get_errno(access(path(p), arg2));
53a5960a 7746 unlock_user(p, arg1, 0);
72eb7ea8 7747 return ret;
704eff6c 7748#endif
92a34c10
TS		 7749#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7750 case TARGET_NR_faccessat:
2852aafd
RH		 7751 if (!(p = lock_user_string(arg2))) {
7752 return -TARGET_EFAULT;
7753 }
c0d472b1 7754 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 7755 unlock_user(p, arg2, 0);
72eb7ea8 7756 return ret;
92a34c10 7757#endif
7a3148a9 7758#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a 7759 case TARGET_NR_nice:
72eb7ea8 7760 return get_errno(nice(arg1));
ebc05488 7761#endif
31e31b8a 7762 case TARGET_NR_sync:
04369ff2 7763 sync();
72eb7ea8 7764 return 0;
5a03cd00
AM		 7765#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
7766 case TARGET_NR_syncfs:
72eb7ea8 7767 return get_errno(syncfs(arg1));
5a03cd00 7768#endif
31e31b8a 7769 case TARGET_NR_kill:
72eb7ea8 7770 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
704eff6c 7771#ifdef TARGET_NR_rename
31e31b8a 7772 case TARGET_NR_rename:
53a5960a
PB		 7773 {
7774 void *p2;
7775 p = lock_user_string(arg1);
7776 p2 = lock_user_string(arg2);
579a97f7
FB		 7777 if (!p || !p2)
7778 ret = -TARGET_EFAULT;
7779 else
7780 ret = get_errno(rename(p, p2));
53a5960a
PB		 7781 unlock_user(p2, arg2, 0);
7782 unlock_user(p, arg1, 0);
7783 }
72eb7ea8 7784 return ret;
704eff6c 7785#endif
c0d472b1 7786#if defined(TARGET_NR_renameat)
722183f6 7787 case TARGET_NR_renameat:
722183f6 7788 {
579a97f7 7789 void *p2;
722183f6
TS		 7790 p = lock_user_string(arg2);
7791 p2 = lock_user_string(arg4);
579a97f7 7792 if (!p || !p2)
0da46a6e 7793 ret = -TARGET_EFAULT;
722183f6 7794 else
c0d472b1 7795 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 7796 unlock_user(p2, arg4, 0);
7797 unlock_user(p, arg2, 0);
722183f6 7798 }
72eb7ea8 7799 return ret;
95d0307c
AS		 7800#endif
7801#if defined(TARGET_NR_renameat2)
7802 case TARGET_NR_renameat2:
7803 {
7804 void *p2;
7805 p = lock_user_string(arg2);
7806 p2 = lock_user_string(arg4);
7807 if (!p || !p2) {
7808 ret = -TARGET_EFAULT;
7809 } else {
7810 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
7811 }
7812 unlock_user(p2, arg4, 0);
7813 unlock_user(p, arg2, 0);
7814 }
72eb7ea8 7815 return ret;
722183f6 7816#endif
704eff6c 7817#ifdef TARGET_NR_mkdir
31e31b8a 7818 case TARGET_NR_mkdir:
579a97f7 7819 if (!(p = lock_user_string(arg1)))
2852aafd 7820 return -TARGET_EFAULT;
53a5960a
PB		 7821 ret = get_errno(mkdir(p, arg2));
7822 unlock_user(p, arg1, 0);
72eb7ea8 7823 return ret;
704eff6c 7824#endif
c0d472b1 7825#if defined(TARGET_NR_mkdirat)
4472ad0d 7826 case TARGET_NR_mkdirat:
579a97f7 7827 if (!(p = lock_user_string(arg2)))
2852aafd 7828 return -TARGET_EFAULT;
c0d472b1 7829 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 7830 unlock_user(p, arg2, 0);
72eb7ea8 7831 return ret;
4472ad0d 7832#endif
704eff6c 7833#ifdef TARGET_NR_rmdir
31e31b8a 7834 case TARGET_NR_rmdir:
579a97f7 7835 if (!(p = lock_user_string(arg1)))
2852aafd 7836 return -TARGET_EFAULT;
53a5960a
PB		 7837 ret = get_errno(rmdir(p));
7838 unlock_user(p, arg1, 0);
72eb7ea8 7839 return ret;
704eff6c 7840#endif
31e31b8a
FB		 7841 case TARGET_NR_dup:
7842 ret = get_errno(dup(arg1));
e36800c9
LV		 7843 if (ret >= 0) {
7844 fd_trans_dup(arg1, ret);
7845 }
72eb7ea8 7846 return ret;
704eff6c 7847#ifdef TARGET_NR_pipe
31e31b8a 7848 case TARGET_NR_pipe:
72eb7ea8 7849 return do_pipe(cpu_env, arg1, 0, 0);
704eff6c 7850#endif
099d6b0f
RV		 7851#ifdef TARGET_NR_pipe2
7852 case TARGET_NR_pipe2:
72eb7ea8
RH		 7853 return do_pipe(cpu_env, arg1,
7854 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
099d6b0f 7855#endif
31e31b8a 7856 case TARGET_NR_times:
32f36bce 7857 {
53a5960a 7858 struct target_tms *tmsp;
32f36bce
FB		 7859 struct tms tms;
7860 ret = get_errno(times(&tms));
53a5960a 7861 if (arg1) {
579a97f7
FB		 7862 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7863 if (!tmsp)
2852aafd 7864 return -TARGET_EFAULT;
cbb21eed
MB		 7865 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7866 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7867 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7868 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 7869 }
c596ed17
FB		 7870 if (!is_error(ret))
7871 ret = host_to_target_clock_t(ret);
32f36bce 7872 }
72eb7ea8 7873 return ret;
31e31b8a 7874 case TARGET_NR_acct:
38d840e6
AJ		 7875 if (arg1 == 0) {
7876 ret = get_errno(acct(NULL));
7877 } else {
2852aafd
RH		 7878 if (!(p = lock_user_string(arg1))) {
7879 return -TARGET_EFAULT;
7880 }
38d840e6
AJ		 7881 ret = get_errno(acct(path(p)));
7882 unlock_user(p, arg1, 0);
7883 }
72eb7ea8 7884 return ret;
8070e7be 7885#ifdef TARGET_NR_umount2
31e31b8a 7886 case TARGET_NR_umount2:
579a97f7 7887 if (!(p = lock_user_string(arg1)))
2852aafd 7888 return -TARGET_EFAULT;
53a5960a
PB		 7889 ret = get_errno(umount2(p, arg2));
7890 unlock_user(p, arg1, 0);
72eb7ea8 7891 return ret;
ebc05488 7892#endif
31e31b8a 7893 case TARGET_NR_ioctl:
72eb7ea8 7894 return do_ioctl(arg1, arg2, arg3);
47ae93cd 7895#ifdef TARGET_NR_fcntl
31e31b8a 7896 case TARGET_NR_fcntl:
72eb7ea8 7897 return do_fcntl(arg1, arg2, arg3);
ebc05488 7898#endif
31e31b8a 7899 case TARGET_NR_setpgid:
72eb7ea8 7900 return get_errno(setpgid(arg1, arg2));
31e31b8a 7901 case TARGET_NR_umask:
72eb7ea8 7902 return get_errno(umask(arg1));
31e31b8a 7903 case TARGET_NR_chroot:
579a97f7 7904 if (!(p = lock_user_string(arg1)))
2852aafd 7905 return -TARGET_EFAULT;
53a5960a
PB		 7906 ret = get_errno(chroot(p));
7907 unlock_user(p, arg1, 0);
72eb7ea8 7908 return ret;
704eff6c 7909#ifdef TARGET_NR_dup2
31e31b8a
FB		 7910 case TARGET_NR_dup2:
7911 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 7912 if (ret >= 0) {
7913 fd_trans_dup(arg1, arg2);
7914 }
72eb7ea8 7915 return ret;
704eff6c 7916#endif
d0927938
UH		 7917#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7918 case TARGET_NR_dup3:
10fa993a
PM		 7919 {
7920 int host_flags;
7921
7922 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
7923 return -EINVAL;
7924 }
7925 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
7926 ret = get_errno(dup3(arg1, arg2, host_flags));
e36800c9
LV		 7927 if (ret >= 0) {
7928 fd_trans_dup(arg1, arg2);
7929 }
72eb7ea8 7930 return ret;
10fa993a 7931 }
d0927938 7932#endif
7a3148a9 7933#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a 7934 case TARGET_NR_getppid:
72eb7ea8 7935 return get_errno(getppid());
7a3148a9 7936#endif
704eff6c 7937#ifdef TARGET_NR_getpgrp
31e31b8a 7938 case TARGET_NR_getpgrp:
72eb7ea8 7939 return get_errno(getpgrp());
704eff6c 7940#endif
31e31b8a 7941 case TARGET_NR_setsid:
72eb7ea8 7942 return get_errno(setsid());
e5febef5 7943#ifdef TARGET_NR_sigaction
31e31b8a 7944 case TARGET_NR_sigaction:
31e31b8a 7945 {
6049f4f8
RH		 7946#if defined(TARGET_ALPHA)
7947 struct target_sigaction act, oact, *pact = 0;
53a5960a 7948 struct target_old_sigaction *old_act;
53a5960a 7949 if (arg2) {
579a97f7 7950 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7951 return -TARGET_EFAULT;
66fb9763
FB		 7952 act._sa_handler = old_act->_sa_handler;
7953 target_siginitset(&act.sa_mask, old_act->sa_mask);
7954 act.sa_flags = old_act->sa_flags;
6049f4f8 7955 act.sa_restorer = 0;
53a5960a 7956 unlock_user_struct(old_act, arg2, 0);
66fb9763 7957 pact = &act;
66fb9763
FB		 7958 }
7959 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 7960 if (!is_error(ret) && arg3) {
579a97f7 7961 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7962 return -TARGET_EFAULT;
53a5960a
PB		 7963 old_act->_sa_handler = oact._sa_handler;
7964 old_act->sa_mask = oact.sa_mask.sig[0];
7965 old_act->sa_flags = oact.sa_flags;
53a5960a 7966 unlock_user_struct(old_act, arg3, 1);
66fb9763 7967 }
6049f4f8 7968#elif defined(TARGET_MIPS)
106ec879
FB		 7969 struct target_sigaction act, oact, *pact, *old_act;
7970
7971 if (arg2) {
579a97f7 7972 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7973 return -TARGET_EFAULT;
106ec879
FB		 7974 act._sa_handler = old_act->_sa_handler;
7975 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7976 act.sa_flags = old_act->sa_flags;
7977 unlock_user_struct(old_act, arg2, 0);
7978 pact = &act;
7979 } else {
7980 pact = NULL;
7981 }
7982
7983 ret = get_errno(do_sigaction(arg1, pact, &oact));
7984
7985 if (!is_error(ret) && arg3) {
579a97f7 7986 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7987 return -TARGET_EFAULT;
106ec879
FB		 7988 old_act->_sa_handler = oact._sa_handler;
7989 old_act->sa_flags = oact.sa_flags;
7990 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7991 old_act->sa_mask.sig[1] = 0;
7992 old_act->sa_mask.sig[2] = 0;
7993 old_act->sa_mask.sig[3] = 0;
7994 unlock_user_struct(old_act, arg3, 1);
7995 }
6049f4f8
RH		 7996#else
7997 struct target_old_sigaction *old_act;
7998 struct target_sigaction act, oact, *pact;
7999 if (arg2) {
8000 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 8001 return -TARGET_EFAULT;
6049f4f8
RH		 8002 act._sa_handler = old_act->_sa_handler;
8003 target_siginitset(&act.sa_mask, old_act->sa_mask);
8004 act.sa_flags = old_act->sa_flags;
8005 act.sa_restorer = old_act->sa_restorer;
5de154e8
LV		 8006#ifdef TARGET_ARCH_HAS_KA_RESTORER
8007 act.ka_restorer = 0;
8008#endif
6049f4f8
RH		 8009 unlock_user_struct(old_act, arg2, 0);
8010 pact = &act;
8011 } else {
8012 pact = NULL;
8013 }
8014 ret = get_errno(do_sigaction(arg1, pact, &oact));
8015 if (!is_error(ret) && arg3) {
8016 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 8017 return -TARGET_EFAULT;
6049f4f8
RH		 8018 old_act->_sa_handler = oact._sa_handler;
8019 old_act->sa_mask = oact.sa_mask.sig[0];
8020 old_act->sa_flags = oact.sa_flags;
8021 old_act->sa_restorer = oact.sa_restorer;
8022 unlock_user_struct(old_act, arg3, 1);
8023 }
388bb21a 8024#endif
31e31b8a 8025 }
72eb7ea8 8026 return ret;
e5febef5 8027#endif
66fb9763 8028 case TARGET_NR_rt_sigaction:
53a5960a 8029 {
6049f4f8 8030#if defined(TARGET_ALPHA)
78bfef72
PM		 8031 /* For Alpha and SPARC this is a 5 argument syscall, with
8032 * a 'restorer' parameter which must be copied into the
8033 * sa_restorer field of the sigaction struct.
8034 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
8035 * and arg5 is the sigsetsize.
8036 * Alpha also has a separate rt_sigaction struct that it uses
8037 * here; SPARC uses the usual sigaction struct.
8038 */
6049f4f8 8039 struct target_rt_sigaction *rt_act;
78bfef72 8040 struct target_sigaction act, oact, *pact = 0;
c815701e
PM		 8041
8042 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8043 return -TARGET_EINVAL;
c815701e 8044 }
6049f4f8
RH		 8045 if (arg2) {
8046 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
2852aafd 8047 return -TARGET_EFAULT;
6049f4f8
RH		 8048 act._sa_handler = rt_act->_sa_handler;
8049 act.sa_mask = rt_act->sa_mask;
8050 act.sa_flags = rt_act->sa_flags;
8051 act.sa_restorer = arg5;
8052 unlock_user_struct(rt_act, arg2, 0);
8053 pact = &act;
8054 }
8055 ret = get_errno(do_sigaction(arg1, pact, &oact));
8056 if (!is_error(ret) && arg3) {
8057 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
2852aafd 8058 return -TARGET_EFAULT;
6049f4f8
RH		 8059 rt_act->_sa_handler = oact._sa_handler;
8060 rt_act->sa_mask = oact.sa_mask;
8061 rt_act->sa_flags = oact.sa_flags;
8062 unlock_user_struct(rt_act, arg3, 1);
8063 }
8064#else
78bfef72
PM		 8065#ifdef TARGET_SPARC
8066 target_ulong restorer = arg4;
8067 target_ulong sigsetsize = arg5;
8068#else
8069 target_ulong sigsetsize = arg4;
8070#endif
53a5960a
PB		 8071 struct target_sigaction *act;
8072 struct target_sigaction *oact;
8073
78bfef72 8074 if (sigsetsize != sizeof(target_sigset_t)) {
72eb7ea8 8075 return -TARGET_EINVAL;
c815701e 8076 }
579a97f7 8077 if (arg2) {
78bfef72 8078 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
2852aafd 8079 return -TARGET_EFAULT;
78bfef72 8080 }
5de154e8
LV		 8081#ifdef TARGET_ARCH_HAS_KA_RESTORER
8082 act->ka_restorer = restorer;
78bfef72
PM		 8083#endif
8084 } else {
53a5960a 8085 act = NULL;
78bfef72 8086 }
579a97f7
FB		 8087 if (arg3) {
8088 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
8089 ret = -TARGET_EFAULT;
8090 goto rt_sigaction_fail;
8091 }
8092 } else
53a5960a
PB		 8093 oact = NULL;
8094 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 8095 rt_sigaction_fail:
8096 if (act)
53a5960a 8097 unlock_user_struct(act, arg2, 0);
579a97f7 8098 if (oact)
53a5960a 8099 unlock_user_struct(oact, arg3, 1);
6049f4f8 8100#endif
53a5960a 8101 }
72eb7ea8 8102 return ret;
7a3148a9 8103#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 8104 case TARGET_NR_sgetmask:
66fb9763
FB		 8105 {
8106 sigset_t cur_set;
992f48a0 8107 abi_ulong target_set;
3d3efba0
PM		 8108 ret = do_sigprocmask(0, NULL, &cur_set);
8109 if (!ret) {
8110 host_to_target_old_sigset(&target_set, &cur_set);
8111 ret = target_set;
8112 }
66fb9763 8113 }
72eb7ea8 8114 return ret;
7a3148a9
JM		 8115#endif
8116#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 8117 case TARGET_NR_ssetmask:
66fb9763 8118 {
a8617d8c 8119 sigset_t set, oset;
992f48a0 8120 abi_ulong target_set = arg1;
66fb9763 8121 target_to_host_old_sigset(&set, &target_set);
3d3efba0
PM		 8122 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
8123 if (!ret) {
8124 host_to_target_old_sigset(&target_set, &oset);
8125 ret = target_set;
8126 }
66fb9763 8127 }
72eb7ea8 8128 return ret;
7a3148a9 8129#endif
e5febef5 8130#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 8131 case TARGET_NR_sigprocmask:
8132 {
a5b3b13b
RH		 8133#if defined(TARGET_ALPHA)
8134 sigset_t set, oldset;
8135 abi_ulong mask;
8136 int how;
8137
8138 switch (arg1) {
8139 case TARGET_SIG_BLOCK:
8140 how = SIG_BLOCK;
8141 break;
8142 case TARGET_SIG_UNBLOCK:
8143 how = SIG_UNBLOCK;
8144 break;
8145 case TARGET_SIG_SETMASK:
8146 how = SIG_SETMASK;
8147 break;
8148 default:
259841c1 8149 return -TARGET_EINVAL;
a5b3b13b
RH		 8150 }
8151 mask = arg2;
8152 target_to_host_old_sigset(&set, &mask);
8153
3d3efba0 8154 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 8155 if (!is_error(ret)) {
8156 host_to_target_old_sigset(&mask, &oldset);
8157 ret = mask;
0229f5a3 8158 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 8159 }
8160#else
66fb9763 8161 sigset_t set, oldset, *set_ptr;
a5b3b13b 8162 int how;
3b46e624 8163
53a5960a 8164 if (arg2) {
a5b3b13b 8165 switch (arg1) {
66fb9763
FB		 8166 case TARGET_SIG_BLOCK:
8167 how = SIG_BLOCK;
8168 break;
8169 case TARGET_SIG_UNBLOCK:
8170 how = SIG_UNBLOCK;
8171 break;
8172 case TARGET_SIG_SETMASK:
8173 how = SIG_SETMASK;
8174 break;
8175 default:
259841c1 8176 return -TARGET_EINVAL;
66fb9763 8177 }
c227f099 8178 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 8179 return -TARGET_EFAULT;
53a5960a
PB		 8180 target_to_host_old_sigset(&set, p);
8181 unlock_user(p, arg2, 0);
66fb9763
FB		 8182 set_ptr = &set;
8183 } else {
8184 how = 0;
8185 set_ptr = NULL;
8186 }
3d3efba0 8187 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 8188 if (!is_error(ret) && arg3) {
c227f099 8189 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 8190 return -TARGET_EFAULT;
53a5960a 8191 host_to_target_old_sigset(p, &oldset);
c227f099 8192 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 8193 }
a5b3b13b 8194#endif
66fb9763 8195 }
72eb7ea8 8196 return ret;
e5febef5 8197#endif
66fb9763
FB		 8198 case TARGET_NR_rt_sigprocmask:
8199 {
8200 int how = arg1;
8201 sigset_t set, oldset, *set_ptr;
3b46e624 8202
c815701e 8203 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8204 return -TARGET_EINVAL;
c815701e
PM		 8205 }
8206
53a5960a 8207 if (arg2) {
66fb9763
FB		 8208 switch(how) {
8209 case TARGET_SIG_BLOCK:
8210 how = SIG_BLOCK;
8211 break;
8212 case TARGET_SIG_UNBLOCK:
8213 how = SIG_UNBLOCK;
8214 break;
8215 case TARGET_SIG_SETMASK:
8216 how = SIG_SETMASK;
8217 break;
8218 default:
259841c1 8219 return -TARGET_EINVAL;
66fb9763 8220 }
c227f099 8221 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 8222 return -TARGET_EFAULT;
53a5960a
PB		 8223 target_to_host_sigset(&set, p);
8224 unlock_user(p, arg2, 0);
66fb9763
FB		 8225 set_ptr = &set;
8226 } else {
8227 how = 0;
8228 set_ptr = NULL;
8229 }
3d3efba0 8230 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 8231 if (!is_error(ret) && arg3) {
c227f099 8232 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 8233 return -TARGET_EFAULT;
53a5960a 8234 host_to_target_sigset(p, &oldset);
c227f099 8235 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 8236 }
8237 }
72eb7ea8 8238 return ret;
e5febef5 8239#ifdef TARGET_NR_sigpending
66fb9763
FB		 8240 case TARGET_NR_sigpending:
8241 {
8242 sigset_t set;
8243 ret = get_errno(sigpending(&set));
8244 if (!is_error(ret)) {
c227f099 8245 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 8246 return -TARGET_EFAULT;
53a5960a 8247 host_to_target_old_sigset(p, &set);
c227f099 8248 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 8249 }
8250 }
72eb7ea8 8251 return ret;
e5febef5 8252#endif
66fb9763
FB		 8253 case TARGET_NR_rt_sigpending:
8254 {
8255 sigset_t set;
c815701e
PM		 8256
8257 /* Yes, this check is >, not != like most. We follow the kernel's
8258 * logic and it does it like this because it implements
8259 * NR_sigpending through the same code path, and in that case
8260 * the old_sigset_t is smaller in size.
8261 */
8262 if (arg2 > sizeof(target_sigset_t)) {
72eb7ea8 8263 return -TARGET_EINVAL;
c815701e
PM		 8264 }
8265
66fb9763
FB		 8266 ret = get_errno(sigpending(&set));
8267 if (!is_error(ret)) {
c227f099 8268 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 8269 return -TARGET_EFAULT;
53a5960a 8270 host_to_target_sigset(p, &set);
c227f099 8271 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 8272 }
8273 }
72eb7ea8 8274 return ret;
e5febef5 8275#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 8276 case TARGET_NR_sigsuspend:
8277 {
3d3efba0 8278 TaskState *ts = cpu->opaque;
f43ce12b
RH		 8279#if defined(TARGET_ALPHA)
8280 abi_ulong mask = arg1;
3d3efba0 8281 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 8282#else
c227f099 8283 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8284 return -TARGET_EFAULT;
3d3efba0 8285 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 8286 unlock_user(p, arg1, 0);
f43ce12b 8287#endif
3d3efba0
PM		 8288 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8289 SIGSET_T_SIZE));
8290 if (ret != -TARGET_ERESTARTSYS) {
8291 ts->in_sigsuspend = 1;
8292 }
66fb9763 8293 }
72eb7ea8 8294 return ret;
e5febef5 8295#endif
66fb9763
FB		 8296 case TARGET_NR_rt_sigsuspend:
8297 {
3d3efba0 8298 TaskState *ts = cpu->opaque;
c815701e
PM		 8299
8300 if (arg2 != sizeof(target_sigset_t)) {
72eb7ea8 8301 return -TARGET_EINVAL;
c815701e 8302 }
c227f099 8303 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8304 return -TARGET_EFAULT;
3d3efba0 8305 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 8306 unlock_user(p, arg1, 0);
3d3efba0
PM		 8307 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8308 SIGSET_T_SIZE));
8309 if (ret != -TARGET_ERESTARTSYS) {
8310 ts->in_sigsuspend = 1;
8311 }
66fb9763 8312 }
72eb7ea8 8313 return ret;
66fb9763
FB		 8314 case TARGET_NR_rt_sigtimedwait:
8315 {
66fb9763
FB		 8316 sigset_t set;
8317 struct timespec uts, *puts;
8318 siginfo_t uinfo;
3b46e624 8319
c815701e 8320 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8321 return -TARGET_EINVAL;
c815701e
PM		 8322 }
8323
c227f099 8324 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8325 return -TARGET_EFAULT;
53a5960a
PB		 8326 target_to_host_sigset(&set, p);
8327 unlock_user(p, arg1, 0);
8328 if (arg3) {
66fb9763 8329 puts = &uts;
53a5960a 8330 target_to_host_timespec(puts, arg3);
66fb9763
FB		 8331 } else {
8332 puts = NULL;
8333 }
b3f82330
PM		 8334 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
8335 SIGSET_T_SIZE));
974a196d
PJ		 8336 if (!is_error(ret)) {
8337 if (arg2) {
8338 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
8339 0);
8340 if (!p) {
2852aafd 8341 return -TARGET_EFAULT;
974a196d
PJ		 8342 }
8343 host_to_target_siginfo(p, &uinfo);
8344 unlock_user(p, arg2, sizeof(target_siginfo_t));
8345 }
8346 ret = host_to_target_signal(ret);
66fb9763
FB		 8347 }
8348 }
72eb7ea8 8349 return ret;
66fb9763
FB		 8350 case TARGET_NR_rt_sigqueueinfo:
8351 {
8352 siginfo_t uinfo;
4debae6f
PM		 8353
8354 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
8355 if (!p) {
2852aafd 8356 return -TARGET_EFAULT;
4debae6f 8357 }
53a5960a 8358 target_to_host_siginfo(&uinfo, p);
d8b6d892 8359 unlock_user(p, arg3, 0);
66fb9763
FB		 8360 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
8361 }
72eb7ea8 8362 return ret;
cf8b8bfc
MS		 8363 case TARGET_NR_rt_tgsigqueueinfo:
8364 {
8365 siginfo_t uinfo;
8366
8367 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
8368 if (!p) {
2852aafd 8369 return -TARGET_EFAULT;
cf8b8bfc
MS		 8370 }
8371 target_to_host_siginfo(&uinfo, p);
8372 unlock_user(p, arg4, 0);
8373 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
8374 }
72eb7ea8 8375 return ret;
e5febef5 8376#ifdef TARGET_NR_sigreturn
66fb9763 8377 case TARGET_NR_sigreturn:
3d3efba0 8378 if (block_signals()) {
72eb7ea8 8379 return -TARGET_ERESTARTSYS;
3d3efba0 8380 }
72eb7ea8 8381 return do_sigreturn(cpu_env);
e5febef5 8382#endif
66fb9763 8383 case TARGET_NR_rt_sigreturn:
3d3efba0 8384 if (block_signals()) {
72eb7ea8 8385 return -TARGET_ERESTARTSYS;
3d3efba0 8386 }
72eb7ea8 8387 return do_rt_sigreturn(cpu_env);
31e31b8a 8388 case TARGET_NR_sethostname:
579a97f7 8389 if (!(p = lock_user_string(arg1)))
2852aafd 8390 return -TARGET_EFAULT;
53a5960a
PB		 8391 ret = get_errno(sethostname(p, arg2));
8392 unlock_user(p, arg1, 0);
72eb7ea8 8393 return ret;
4f7f8924 8394#ifdef TARGET_NR_setrlimit
31e31b8a 8395 case TARGET_NR_setrlimit:
9de5e440 8396 {
e22b7015 8397 int resource = target_to_host_resource(arg1);
53a5960a 8398 struct target_rlimit *target_rlim;
9de5e440 8399 struct rlimit rlim;
579a97f7 8400 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
2852aafd 8401 return -TARGET_EFAULT;
81bbe906
TY		 8402 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
8403 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 8404 unlock_user_struct(target_rlim, arg2, 0);
5dfa88f7
MF		 8405 /*
8406 * If we just passed through resource limit settings for memory then
8407 * they would also apply to QEMU's own allocations, and QEMU will
8408 * crash or hang or die if its allocations fail. Ideally we would
8409 * track the guest allocations in QEMU and apply the limits ourselves.
8410 * For now, just tell the guest the call succeeded but don't actually
8411 * limit anything.
8412 */
8413 if (resource != RLIMIT_AS &&
8414 resource != RLIMIT_DATA &&
8415 resource != RLIMIT_STACK) {
8416 return get_errno(setrlimit(resource, &rlim));
8417 } else {
8418 return 0;
8419 }
9de5e440 8420 }
4f7f8924
AR		 8421#endif
8422#ifdef TARGET_NR_getrlimit
31e31b8a 8423 case TARGET_NR_getrlimit:
9de5e440 8424 {
e22b7015 8425 int resource = target_to_host_resource(arg1);
53a5960a 8426 struct target_rlimit *target_rlim;
9de5e440 8427 struct rlimit rlim;
3b46e624 8428
9de5e440
FB		 8429 ret = get_errno(getrlimit(resource, &rlim));
8430 if (!is_error(ret)) {
579a97f7 8431 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 8432 return -TARGET_EFAULT;
81bbe906
TY		 8433 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
8434 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 8435 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 8436 }
8437 }
72eb7ea8 8438 return ret;
4f7f8924 8439#endif
31e31b8a 8440 case TARGET_NR_getrusage:
b409186b
FB		 8441 {
8442 struct rusage rusage;
b409186b
FB		 8443 ret = get_errno(getrusage(arg1, &rusage));
8444 if (!is_error(ret)) {
a39fb273 8445 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 8446 }
8447 }
72eb7ea8 8448 return ret;
31e31b8a
FB		 8449 case TARGET_NR_gettimeofday:
8450 {
31e31b8a
FB		 8451 struct timeval tv;
8452 ret = get_errno(gettimeofday(&tv, NULL));
8453 if (!is_error(ret)) {
788f5ec4 8454 if (copy_to_user_timeval(arg1, &tv))
2852aafd 8455 return -TARGET_EFAULT;
31e31b8a
FB		 8456 }
8457 }
72eb7ea8 8458 return ret;
31e31b8a
FB		 8459 case TARGET_NR_settimeofday:
8460 {
b67d8031 8461 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 8462 struct timezone tz, *ptz = NULL;
8463
b67d8031
PB		 8464 if (arg1) {
8465 if (copy_from_user_timeval(&tv, arg1)) {
2852aafd 8466 return -TARGET_EFAULT;
b67d8031
PB		 8467 }
8468 ptv = &tv;
8469 }
ef4467e9
PB		 8470
8471 if (arg2) {
8472 if (copy_from_user_timezone(&tz, arg2)) {
2852aafd 8473 return -TARGET_EFAULT;
ef4467e9
PB		 8474 }
8475 ptz = &tz;
8476 }
8477
72eb7ea8 8478 return get_errno(settimeofday(ptv, ptz));
31e31b8a 8479 }
9468a5d4 8480#if defined(TARGET_NR_select)
31e31b8a 8481 case TARGET_NR_select:
5457dc9e
LV		 8482#if defined(TARGET_WANT_NI_OLD_SELECT)
8483 /* some architectures used to have old_select here
8484 * but now ENOSYS it.
8485 */
8486 ret = -TARGET_ENOSYS;
8487#elif defined(TARGET_WANT_OLD_SYS_SELECT)
8488 ret = do_old_select(arg1);
9468a5d4 8489#else
5457dc9e 8490 ret = do_select(arg1, arg2, arg3, arg4, arg5);
9468a5d4 8491#endif
72eb7ea8 8492 return ret;
9e42382f
RV		 8493#endif
8494#ifdef TARGET_NR_pselect6
8495 case TARGET_NR_pselect6:
055e0906
MF		 8496 {
8497 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
8498 fd_set rfds, wfds, efds;
8499 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
8500 struct timespec ts, *ts_ptr;
8501
8502 /*
8503 * The 6th arg is actually two args smashed together,
8504 * so we cannot use the C library.
8505 */
8506 sigset_t set;
8507 struct {
8508 sigset_t *set;
8509 size_t size;
8510 } sig, *sig_ptr;
8511
8512 abi_ulong arg_sigset, arg_sigsize, *arg7;
8513 target_sigset_t *target_sigset;
8514
8515 n = arg1;
8516 rfd_addr = arg2;
8517 wfd_addr = arg3;
8518 efd_addr = arg4;
8519 ts_addr = arg5;
8520
8521 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
8522 if (ret) {
259841c1 8523 return ret;
055e0906
MF		 8524 }
8525 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
8526 if (ret) {
259841c1 8527 return ret;
055e0906
MF		 8528 }
8529 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
8530 if (ret) {
259841c1 8531 return ret;
055e0906
MF		 8532 }
8533
8534 /*
8535 * This takes a timespec, and not a timeval, so we cannot
8536 * use the do_select() helper ...
8537 */
8538 if (ts_addr) {
8539 if (target_to_host_timespec(&ts, ts_addr)) {
2852aafd 8540 return -TARGET_EFAULT;
055e0906
MF		 8541 }
8542 ts_ptr = &ts;
8543 } else {
8544 ts_ptr = NULL;
8545 }
8546
8547 /* Extract the two packed args for the sigset */
8548 if (arg6) {
8549 sig_ptr = &sig;
b28a1f33 8550 sig.size = SIGSET_T_SIZE;
055e0906
MF		 8551
8552 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
8553 if (!arg7) {
2852aafd 8554 return -TARGET_EFAULT;
055e0906 8555 }
cbb21eed
MB		 8556 arg_sigset = tswapal(arg7[0]);
8557 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 8558 unlock_user(arg7, arg6, 0);
8559
8560 if (arg_sigset) {
8561 sig.set = &set;
8f04eeb3
PM		 8562 if (arg_sigsize != sizeof(*target_sigset)) {
8563 /* Like the kernel, we enforce correct size sigsets */
259841c1 8564 return -TARGET_EINVAL;
8f04eeb3 8565 }
055e0906
MF		 8566 target_sigset = lock_user(VERIFY_READ, arg_sigset,
8567 sizeof(*target_sigset), 1);
8568 if (!target_sigset) {
2852aafd 8569 return -TARGET_EFAULT;
055e0906
MF		 8570 }
8571 target_to_host_sigset(&set, target_sigset);
8572 unlock_user(target_sigset, arg_sigset, 0);
8573 } else {
8574 sig.set = NULL;
8575 }
8576 } else {
8577 sig_ptr = NULL;
8578 }
8579
6df9d38d
PM		 8580 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
8581 ts_ptr, sig_ptr));
055e0906
MF		 8582
8583 if (!is_error(ret)) {
8584 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
2852aafd 8585 return -TARGET_EFAULT;
055e0906 8586 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
2852aafd 8587 return -TARGET_EFAULT;
055e0906 8588 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
2852aafd 8589 return -TARGET_EFAULT;
055e0906
MF		 8590
8591 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
2852aafd 8592 return -TARGET_EFAULT;
055e0906
MF		 8593 }
8594 }
72eb7ea8 8595 return ret;
048f6b4d 8596#endif
704eff6c 8597#ifdef TARGET_NR_symlink
31e31b8a 8598 case TARGET_NR_symlink:
53a5960a
PB		 8599 {
8600 void *p2;
8601 p = lock_user_string(arg1);
8602 p2 = lock_user_string(arg2);
579a97f7
FB		 8603 if (!p || !p2)
8604 ret = -TARGET_EFAULT;
8605 else
8606 ret = get_errno(symlink(p, p2));
53a5960a
PB		 8607 unlock_user(p2, arg2, 0);
8608 unlock_user(p, arg1, 0);
8609 }
72eb7ea8 8610 return ret;
704eff6c 8611#endif
c0d472b1 8612#if defined(TARGET_NR_symlinkat)
f0b6243d 8613 case TARGET_NR_symlinkat:
f0b6243d 8614 {
579a97f7 8615 void *p2;
f0b6243d
TS		 8616 p = lock_user_string(arg1);
8617 p2 = lock_user_string(arg3);
579a97f7 8618 if (!p || !p2)
0da46a6e 8619 ret = -TARGET_EFAULT;
f0b6243d 8620 else
c0d472b1 8621 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 8622 unlock_user(p2, arg3, 0);
8623 unlock_user(p, arg1, 0);
f0b6243d 8624 }
72eb7ea8 8625 return ret;
f0b6243d 8626#endif
704eff6c 8627#ifdef TARGET_NR_readlink
31e31b8a 8628 case TARGET_NR_readlink:
53a5960a 8629 {
463d8e73 8630 void *p2;
53a5960a 8631 p = lock_user_string(arg1);
579a97f7 8632 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 8633 if (!p || !p2) {
579a97f7 8634 ret = -TARGET_EFAULT;
f17f4989
MF		 8635 } else if (!arg3) {
8636 /* Short circuit this for the magic exe check. */
8637 ret = -TARGET_EINVAL;
463d8e73
AS		 8638 } else if (is_proc_myself((const char *)p, "exe")) {
8639 char real[PATH_MAX], *temp;
8640 temp = realpath(exec_path, real);
f17f4989
MF		 8641 /* Return value is # of bytes that we wrote to the buffer. */
8642 if (temp == NULL) {
8643 ret = get_errno(-1);
8644 } else {
8645 /* Don't worry about sign mismatch as earlier mapping
8646 * logic would have thrown a bad address error. */
8647 ret = MIN(strlen(real), arg3);
8648 /* We cannot NUL terminate the string. */
8649 memcpy(p2, real, ret);
8650 }
463d8e73
AS		 8651 } else {
8652 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 8653 }
53a5960a
PB		 8654 unlock_user(p2, arg2, ret);
8655 unlock_user(p, arg1, 0);
8656 }
72eb7ea8 8657 return ret;
704eff6c 8658#endif
c0d472b1 8659#if defined(TARGET_NR_readlinkat)
5e0ccb18 8660 case TARGET_NR_readlinkat:
5e0ccb18 8661 {
579a97f7 8662 void *p2;
5e0ccb18 8663 p = lock_user_string(arg2);
579a97f7 8664 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 8665 if (!p || !p2) {
8666 ret = -TARGET_EFAULT;
8667 } else if (is_proc_myself((const char *)p, "exe")) {
8668 char real[PATH_MAX], *temp;
8669 temp = realpath(exec_path, real);
8670 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8671 snprintf((char *)p2, arg4, "%s", real);
8672 } else {
c0d472b1 8673 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 8674 }
579a97f7
FB		 8675 unlock_user(p2, arg3, ret);
8676 unlock_user(p, arg2, 0);
5e0ccb18 8677 }
72eb7ea8 8678 return ret;
5e0ccb18 8679#endif
e5febef5 8680#ifdef TARGET_NR_swapon
31e31b8a 8681 case TARGET_NR_swapon:
579a97f7 8682 if (!(p = lock_user_string(arg1)))
2852aafd 8683 return -TARGET_EFAULT;
53a5960a
PB		 8684 ret = get_errno(swapon(p, arg2));
8685 unlock_user(p, arg1, 0);
72eb7ea8 8686 return ret;
e5febef5 8687#endif
31e31b8a 8688 case TARGET_NR_reboot:
c07ecc68
LV		 8689 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8690 /* arg4 must be ignored in all other cases */
8691 p = lock_user_string(arg4);
8692 if (!p) {
2852aafd 8693 return -TARGET_EFAULT;
c07ecc68
LV		 8694 }
8695 ret = get_errno(reboot(arg1, arg2, arg3, p));
8696 unlock_user(p, arg4, 0);
8697 } else {
8698 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8699 }
72eb7ea8 8700 return ret;
e5febef5 8701#ifdef TARGET_NR_mmap
31e31b8a 8702 case TARGET_NR_mmap:
09701199
AG		 8703#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8704 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 8705 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8706 || defined(TARGET_S390X)
31e31b8a 8707 {
992f48a0
BS		 8708 abi_ulong *v;
8709 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7 8710 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
2852aafd 8711 return -TARGET_EFAULT;
cbb21eed
MB		 8712 v1 = tswapal(v[0]);
8713 v2 = tswapal(v[1]);
8714 v3 = tswapal(v[2]);
8715 v4 = tswapal(v[3]);
8716 v5 = tswapal(v[4]);
8717 v6 = tswapal(v[5]);
53a5960a 8718 unlock_user(v, arg1, 0);
5fafdf24 8719 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 8720 target_to_host_bitmask(v4, mmap_flags_tbl),
8721 v5, v6));
31e31b8a 8722 }
31e31b8a 8723#else
5fafdf24
TS		 8724 ret = get_errno(target_mmap(arg1, arg2, arg3,
8725 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 8726 arg5,
8727 arg6));
31e31b8a 8728#endif
72eb7ea8 8729 return ret;
e5febef5 8730#endif
a315a145 8731#ifdef TARGET_NR_mmap2
6fb883e8 8732 case TARGET_NR_mmap2:
bb7ec043 8733#ifndef MMAP_SHIFT
c573ff67 8734#define MMAP_SHIFT 12
c573ff67 8735#endif
72eb7ea8
RH		 8736 ret = target_mmap(arg1, arg2, arg3,
8737 target_to_host_bitmask(arg4, mmap_flags_tbl),
8738 arg5, arg6 << MMAP_SHIFT);
8739 return get_errno(ret);
a315a145 8740#endif
31e31b8a 8741 case TARGET_NR_munmap:
72eb7ea8 8742 return get_errno(target_munmap(arg1, arg2));
9de5e440 8743 case TARGET_NR_mprotect:
97374d38 8744 {
0429a971 8745 TaskState *ts = cpu->opaque;
97374d38
PB		 8746 /* Special hack to detect libc making the stack executable. */
8747 if ((arg3 & PROT_GROWSDOWN)
8748 && arg1 >= ts->info->stack_limit
8749 && arg1 <= ts->info->start_stack) {
8750 arg3 &= ~PROT_GROWSDOWN;
8751 arg2 = arg2 + arg1 - ts->info->stack_limit;
8752 arg1 = ts->info->stack_limit;
8753 }
8754 }
72eb7ea8 8755 return get_errno(target_mprotect(arg1, arg2, arg3));
e5febef5 8756#ifdef TARGET_NR_mremap
9de5e440 8757 case TARGET_NR_mremap:
72eb7ea8 8758 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
e5febef5 8759#endif
53a5960a 8760 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 8761#ifdef TARGET_NR_msync
9de5e440 8762 case TARGET_NR_msync:
72eb7ea8 8763 return get_errno(msync(g2h(arg1), arg2, arg3));
e5febef5
TS		 8764#endif
8765#ifdef TARGET_NR_mlock
9de5e440 8766 case TARGET_NR_mlock:
72eb7ea8 8767 return get_errno(mlock(g2h(arg1), arg2));
e5febef5
TS		 8768#endif
8769#ifdef TARGET_NR_munlock
9de5e440 8770 case TARGET_NR_munlock:
72eb7ea8 8771 return get_errno(munlock(g2h(arg1), arg2));
e5febef5
TS		 8772#endif
8773#ifdef TARGET_NR_mlockall
9de5e440 8774 case TARGET_NR_mlockall:
72eb7ea8 8775 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
e5febef5
TS		 8776#endif
8777#ifdef TARGET_NR_munlockall
9de5e440 8778 case TARGET_NR_munlockall:
72eb7ea8 8779 return get_errno(munlockall());
e5febef5 8780#endif
4f7f8924 8781#ifdef TARGET_NR_truncate
31e31b8a 8782 case TARGET_NR_truncate:
579a97f7 8783 if (!(p = lock_user_string(arg1)))
2852aafd 8784 return -TARGET_EFAULT;
53a5960a
PB		 8785 ret = get_errno(truncate(p, arg2));
8786 unlock_user(p, arg1, 0);
72eb7ea8 8787 return ret;
4f7f8924
AR		 8788#endif
8789#ifdef TARGET_NR_ftruncate
31e31b8a 8790 case TARGET_NR_ftruncate:
72eb7ea8 8791 return get_errno(ftruncate(arg1, arg2));
4f7f8924 8792#endif
31e31b8a 8793 case TARGET_NR_fchmod:
72eb7ea8 8794 return get_errno(fchmod(arg1, arg2));
c0d472b1 8795#if defined(TARGET_NR_fchmodat)
814d7977 8796 case TARGET_NR_fchmodat:
579a97f7 8797 if (!(p = lock_user_string(arg2)))
2852aafd 8798 return -TARGET_EFAULT;
c0d472b1 8799 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 8800 unlock_user(p, arg2, 0);
72eb7ea8 8801 return ret;
814d7977 8802#endif
31e31b8a 8803 case TARGET_NR_getpriority:
95c09828
RH		 8804 /* Note that negative values are valid for getpriority, so we must
8805 differentiate based on errno settings. */
8806 errno = 0;
8807 ret = getpriority(arg1, arg2);
8808 if (ret == -1 && errno != 0) {
72eb7ea8 8809 return -host_to_target_errno(errno);
95c09828
RH		 8810 }
8811#ifdef TARGET_ALPHA
8812 /* Return value is the unbiased priority. Signal no error. */
8813 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8814#else
8815 /* Return value is a biased priority to avoid negative numbers. */
8816 ret = 20 - ret;
8817#endif
72eb7ea8 8818 return ret;
31e31b8a 8819 case TARGET_NR_setpriority:
72eb7ea8 8820 return get_errno(setpriority(arg1, arg2, arg3));
4f7f8924 8821#ifdef TARGET_NR_statfs
31e31b8a 8822 case TARGET_NR_statfs:
2852aafd
RH		 8823 if (!(p = lock_user_string(arg1))) {
8824 return -TARGET_EFAULT;
8825 }
53a5960a
PB		 8826 ret = get_errno(statfs(path(p), &stfs));
8827 unlock_user(p, arg1, 0);
31e31b8a
FB		 8828 convert_statfs:
8829 if (!is_error(ret)) {
53a5960a 8830 struct target_statfs *target_stfs;
3b46e624 8831
579a97f7 8832 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
2852aafd 8833 return -TARGET_EFAULT;
579a97f7
FB		 8834 __put_user(stfs.f_type, &target_stfs->f_type);
8835 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8836 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8837 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8838 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8839 __put_user(stfs.f_files, &target_stfs->f_files);
8840 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8841 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8842 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8843 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 8844 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
d4247ec2
SL		 8845#ifdef _STATFS_F_FLAGS
8846 __put_user(stfs.f_flags, &target_stfs->f_flags);
8847#else
8848 __put_user(0, &target_stfs->f_flags);
8849#endif
229d3376 8850 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 8851 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a 8852 }
72eb7ea8 8853 return ret;
4f7f8924
AR		 8854#endif
8855#ifdef TARGET_NR_fstatfs
31e31b8a 8856 case TARGET_NR_fstatfs:
56c8f68f 8857 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 8858 goto convert_statfs;
4f7f8924 8859#endif
56c8f68f
FB		 8860#ifdef TARGET_NR_statfs64
8861 case TARGET_NR_statfs64:
2852aafd
RH		 8862 if (!(p = lock_user_string(arg1))) {
8863 return -TARGET_EFAULT;
8864 }
53a5960a
PB		 8865 ret = get_errno(statfs(path(p), &stfs));
8866 unlock_user(p, arg1, 0);
56c8f68f
FB		 8867 convert_statfs64:
8868 if (!is_error(ret)) {
53a5960a 8869 struct target_statfs64 *target_stfs;
3b46e624 8870
579a97f7 8871 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
2852aafd 8872 return -TARGET_EFAULT;
579a97f7
FB		 8873 __put_user(stfs.f_type, &target_stfs->f_type);
8874 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8875 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8876 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8877 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8878 __put_user(stfs.f_files, &target_stfs->f_files);
8879 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8880 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8881 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8882 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8883 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8884 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 8885 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f 8886 }
72eb7ea8 8887 return ret;
56c8f68f
FB		 8888 case TARGET_NR_fstatfs64:
8889 ret = get_errno(fstatfs(arg1, &stfs));
8890 goto convert_statfs64;
8891#endif
e5febef5 8892#ifdef TARGET_NR_socketcall
31e31b8a 8893 case TARGET_NR_socketcall:
72eb7ea8 8894 return do_socketcall(arg1, arg2);
e5febef5 8895#endif
3532fa74
FB		 8896#ifdef TARGET_NR_accept
8897 case TARGET_NR_accept:
72eb7ea8 8898 return do_accept4(arg1, arg2, arg3, 0);
a94b4987
PM		 8899#endif
8900#ifdef TARGET_NR_accept4
8901 case TARGET_NR_accept4:
72eb7ea8 8902 return do_accept4(arg1, arg2, arg3, arg4);
3532fa74
FB		 8903#endif
8904#ifdef TARGET_NR_bind
8905 case TARGET_NR_bind:
72eb7ea8 8906 return do_bind(arg1, arg2, arg3);
3532fa74
FB		 8907#endif
8908#ifdef TARGET_NR_connect
8909 case TARGET_NR_connect:
72eb7ea8 8910 return do_connect(arg1, arg2, arg3);
3532fa74
FB		 8911#endif
8912#ifdef TARGET_NR_getpeername
8913 case TARGET_NR_getpeername:
72eb7ea8 8914 return do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 8915#endif
8916#ifdef TARGET_NR_getsockname
8917 case TARGET_NR_getsockname:
72eb7ea8 8918 return do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 8919#endif
8920#ifdef TARGET_NR_getsockopt
8921 case TARGET_NR_getsockopt:
72eb7ea8 8922 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3532fa74
FB		 8923#endif
8924#ifdef TARGET_NR_listen
8925 case TARGET_NR_listen:
72eb7ea8 8926 return get_errno(listen(arg1, arg2));
3532fa74
FB		 8927#endif
8928#ifdef TARGET_NR_recv
8929 case TARGET_NR_recv:
72eb7ea8 8930 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8931#endif
8932#ifdef TARGET_NR_recvfrom
8933 case TARGET_NR_recvfrom:
72eb7ea8 8934 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8935#endif
8936#ifdef TARGET_NR_recvmsg
8937 case TARGET_NR_recvmsg:
72eb7ea8 8938 return do_sendrecvmsg(arg1, arg2, arg3, 0);
3532fa74
FB		 8939#endif
8940#ifdef TARGET_NR_send
8941 case TARGET_NR_send:
72eb7ea8 8942 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8943#endif
8944#ifdef TARGET_NR_sendmsg
8945 case TARGET_NR_sendmsg:
72eb7ea8 8946 return do_sendrecvmsg(arg1, arg2, arg3, 1);
3532fa74 8947#endif
f19e00d7
AG		 8948#ifdef TARGET_NR_sendmmsg
8949 case TARGET_NR_sendmmsg:
72eb7ea8 8950 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
f19e00d7 8951 case TARGET_NR_recvmmsg:
72eb7ea8 8952 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
f19e00d7 8953#endif
3532fa74
FB		 8954#ifdef TARGET_NR_sendto
8955 case TARGET_NR_sendto:
72eb7ea8 8956 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8957#endif
8958#ifdef TARGET_NR_shutdown
8959 case TARGET_NR_shutdown:
72eb7ea8 8960 return get_errno(shutdown(arg1, arg2));
3532fa74 8961#endif
f894efd1
LV		 8962#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8963 case TARGET_NR_getrandom:
8964 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8965 if (!p) {
2852aafd 8966 return -TARGET_EFAULT;
f894efd1
LV		 8967 }
8968 ret = get_errno(getrandom(p, arg2, arg3));
8969 unlock_user(p, arg1, ret);
72eb7ea8 8970 return ret;
f894efd1 8971#endif
3532fa74
FB		 8972#ifdef TARGET_NR_socket
8973 case TARGET_NR_socket:
72eb7ea8 8974 return do_socket(arg1, arg2, arg3);
3532fa74
FB		 8975#endif
8976#ifdef TARGET_NR_socketpair
8977 case TARGET_NR_socketpair:
72eb7ea8 8978 return do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 8979#endif
8980#ifdef TARGET_NR_setsockopt
8981 case TARGET_NR_setsockopt:
72eb7ea8 8982 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3532fa74 8983#endif
da2c8ad7 8984#if defined(TARGET_NR_syslog)
31e31b8a 8985 case TARGET_NR_syslog:
da2c8ad7
AM		 8986 {
8987 int len = arg2;
7494b0f9 8988
da2c8ad7
AM		 8989 switch (arg1) {
8990 case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
8991 case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
8992 case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
8993 case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
8994 case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
8995 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
8996 case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
8997 case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
72eb7ea8 8998 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
da2c8ad7
AM		 8999 case TARGET_SYSLOG_ACTION_READ: /* Read from log */
9000 case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
9001 case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
9002 {
da2c8ad7 9003 if (len < 0) {
259841c1 9004 return -TARGET_EINVAL;
da2c8ad7 9005 }
da2c8ad7 9006 if (len == 0) {
72eb7ea8 9007 return 0;
da2c8ad7
AM		 9008 }
9009 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
9010 if (!p) {
259841c1 9011 return -TARGET_EFAULT;
da2c8ad7
AM		 9012 }
9013 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
9014 unlock_user(p, arg2, arg3);
9015 }
72eb7ea8 9016 return ret;
da2c8ad7 9017 default:
72eb7ea8 9018 return -TARGET_EINVAL;
da2c8ad7
AM		 9019 }
9020 }
9021 break;
9022#endif
31e31b8a 9023 case TARGET_NR_setitimer:
66fb9763 9024 {
66fb9763
FB		 9025 struct itimerval value, ovalue, *pvalue;
9026
53a5960a 9027 if (arg2) {
66fb9763 9028 pvalue = &value;
788f5ec4
TS		 9029 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
9030 || copy_from_user_timeval(&pvalue->it_value,
9031 arg2 + sizeof(struct target_timeval)))
2852aafd 9032 return -TARGET_EFAULT;
66fb9763
FB		 9033 } else {
9034 pvalue = NULL;
9035 }
9036 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 9037 if (!is_error(ret) && arg3) {
788f5ec4
TS		 9038 if (copy_to_user_timeval(arg3,
9039 &ovalue.it_interval)
9040 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
9041 &ovalue.it_value))
2852aafd 9042 return -TARGET_EFAULT;
66fb9763
FB		 9043 }
9044 }
72eb7ea8 9045 return ret;
31e31b8a 9046 case TARGET_NR_getitimer:
66fb9763 9047 {
66fb9763 9048 struct itimerval value;
3b46e624 9049
66fb9763 9050 ret = get_errno(getitimer(arg1, &value));
53a5960a 9051 if (!is_error(ret) && arg2) {
788f5ec4
TS		 9052 if (copy_to_user_timeval(arg2,
9053 &value.it_interval)
9054 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
9055 &value.it_value))
2852aafd 9056 return -TARGET_EFAULT;
66fb9763
FB		 9057 }
9058 }
72eb7ea8 9059 return ret;
704eff6c 9060#ifdef TARGET_NR_stat
31e31b8a 9061 case TARGET_NR_stat:
2852aafd
RH		 9062 if (!(p = lock_user_string(arg1))) {
9063 return -TARGET_EFAULT;
9064 }
53a5960a
PB		 9065 ret = get_errno(stat(path(p), &st));
9066 unlock_user(p, arg1, 0);
31e31b8a 9067 goto do_stat;
704eff6c
CG		 9068#endif
9069#ifdef TARGET_NR_lstat
31e31b8a 9070 case TARGET_NR_lstat:
2852aafd
RH		 9071 if (!(p = lock_user_string(arg1))) {
9072 return -TARGET_EFAULT;
9073 }
53a5960a
PB		 9074 ret = get_errno(lstat(path(p), &st));
9075 unlock_user(p, arg1, 0);
31e31b8a 9076 goto do_stat;
704eff6c 9077#endif
4f7f8924 9078#ifdef TARGET_NR_fstat
31e31b8a
FB		 9079 case TARGET_NR_fstat:
9080 {
9081 ret = get_errno(fstat(arg1, &st));
704eff6c 9082#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 9083 do_stat:
704eff6c 9084#endif
31e31b8a 9085 if (!is_error(ret)) {
53a5960a 9086 struct target_stat *target_st;
e3584658 9087
579a97f7 9088 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
2852aafd 9089 return -TARGET_EFAULT;
12727917 9090 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 9091 __put_user(st.st_dev, &target_st->st_dev);
9092 __put_user(st.st_ino, &target_st->st_ino);
9093 __put_user(st.st_mode, &target_st->st_mode);
9094 __put_user(st.st_uid, &target_st->st_uid);
9095 __put_user(st.st_gid, &target_st->st_gid);
9096 __put_user(st.st_nlink, &target_st->st_nlink);
9097 __put_user(st.st_rdev, &target_st->st_rdev);
9098 __put_user(st.st_size, &target_st->st_size);
9099 __put_user(st.st_blksize, &target_st->st_blksize);
9100 __put_user(st.st_blocks, &target_st->st_blocks);
9101 __put_user(st.st_atime, &target_st->target_st_atime);
9102 __put_user(st.st_mtime, &target_st->target_st_mtime);
9103 __put_user(st.st_ctime, &target_st->target_st_ctime);
5f992db6
CYT		 9104#if (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) && \
9105 defined(TARGET_STAT_HAVE_NSEC)
9106 __put_user(st.st_atim.tv_nsec,
9107 &target_st->target_st_atime_nsec);
9108 __put_user(st.st_mtim.tv_nsec,
9109 &target_st->target_st_mtime_nsec);
9110 __put_user(st.st_ctim.tv_nsec,
9111 &target_st->target_st_ctime_nsec);
9112#endif
53a5960a 9113 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 9114 }
9115 }
72eb7ea8 9116 return ret;
ebc05488 9117#endif
31e31b8a 9118 case TARGET_NR_vhangup:
72eb7ea8 9119 return get_errno(vhangup());
42ad6ae9
FB		 9120#ifdef TARGET_NR_syscall
9121 case TARGET_NR_syscall:
72eb7ea8
RH		 9122 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
9123 arg6, arg7, arg8, 0);
ebc05488 9124#endif
31e31b8a
FB		 9125 case TARGET_NR_wait4:
9126 {
9127 int status;
992f48a0 9128 abi_long status_ptr = arg2;
31e31b8a 9129 struct rusage rusage, *rusage_ptr;
992f48a0 9130 abi_ulong target_rusage = arg4;
a39fb273 9131 abi_long rusage_err;
31e31b8a
FB		 9132 if (target_rusage)
9133 rusage_ptr = &rusage;
9134 else
9135 rusage_ptr = NULL;
4af80a37 9136 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 9137 if (!is_error(ret)) {
5379557b 9138 if (status_ptr && ret) {
1d9d8b55 9139 status = host_to_target_waitstatus(status);
2f619698 9140 if (put_user_s32(status, status_ptr))
2852aafd 9141 return -TARGET_EFAULT;
31e31b8a 9142 }
a39fb273
PJ		 9143 if (target_rusage) {
9144 rusage_err = host_to_target_rusage(target_rusage, &rusage);
9145 if (rusage_err) {
9146 ret = rusage_err;
9147 }
9148 }
31e31b8a
FB		 9149 }
9150 }
72eb7ea8 9151 return ret;
e5febef5 9152#ifdef TARGET_NR_swapoff
31e31b8a 9153 case TARGET_NR_swapoff:
579a97f7 9154 if (!(p = lock_user_string(arg1)))
2852aafd 9155 return -TARGET_EFAULT;
53a5960a
PB		 9156 ret = get_errno(swapoff(p));
9157 unlock_user(p, arg1, 0);
72eb7ea8 9158 return ret;
e5febef5 9159#endif
31e31b8a 9160 case TARGET_NR_sysinfo:
a5448a7d 9161 {
53a5960a 9162 struct target_sysinfo *target_value;
a5448a7d
FB		 9163 struct sysinfo value;
9164 ret = get_errno(sysinfo(&value));
53a5960a 9165 if (!is_error(ret) && arg1)
a5448a7d 9166 {
579a97f7 9167 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
2852aafd 9168 return -TARGET_EFAULT;
a5448a7d
FB		 9169 __put_user(value.uptime, &target_value->uptime);
9170 __put_user(value.loads[0], &target_value->loads[0]);
9171 __put_user(value.loads[1], &target_value->loads[1]);
9172 __put_user(value.loads[2], &target_value->loads[2]);
9173 __put_user(value.totalram, &target_value->totalram);
9174 __put_user(value.freeram, &target_value->freeram);
9175 __put_user(value.sharedram, &target_value->sharedram);
9176 __put_user(value.bufferram, &target_value->bufferram);
9177 __put_user(value.totalswap, &target_value->totalswap);
9178 __put_user(value.freeswap, &target_value->freeswap);
9179 __put_user(value.procs, &target_value->procs);
9180 __put_user(value.totalhigh, &target_value->totalhigh);
9181 __put_user(value.freehigh, &target_value->freehigh);
9182 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 9183 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 9184 }
9185 }
72eb7ea8 9186 return ret;
e5febef5 9187#ifdef TARGET_NR_ipc
31e31b8a 9188 case TARGET_NR_ipc:
72eb7ea8 9189 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
e5febef5 9190#endif
e5289087
AJ		 9191#ifdef TARGET_NR_semget
9192 case TARGET_NR_semget:
72eb7ea8 9193 return get_errno(semget(arg1, arg2, arg3));
e5289087
AJ		 9194#endif
9195#ifdef TARGET_NR_semop
9196 case TARGET_NR_semop:
72eb7ea8 9197 return do_semop(arg1, arg2, arg3);
e5289087
AJ		 9198#endif
9199#ifdef TARGET_NR_semctl
9200 case TARGET_NR_semctl:
72eb7ea8 9201 return do_semctl(arg1, arg2, arg3, arg4);
e5289087 9202#endif
eeb438c1
AJ		 9203#ifdef TARGET_NR_msgctl
9204 case TARGET_NR_msgctl:
72eb7ea8 9205 return do_msgctl(arg1, arg2, arg3);
eeb438c1
AJ		 9206#endif
9207#ifdef TARGET_NR_msgget
9208 case TARGET_NR_msgget:
72eb7ea8 9209 return get_errno(msgget(arg1, arg2));
eeb438c1
AJ		 9210#endif
9211#ifdef TARGET_NR_msgrcv
9212 case TARGET_NR_msgrcv:
72eb7ea8 9213 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
eeb438c1
AJ		 9214#endif
9215#ifdef TARGET_NR_msgsnd
9216 case TARGET_NR_msgsnd:
72eb7ea8 9217 return do_msgsnd(arg1, arg2, arg3, arg4);
88a8c984
RV		 9218#endif
9219#ifdef TARGET_NR_shmget
9220 case TARGET_NR_shmget:
72eb7ea8 9221 return get_errno(shmget(arg1, arg2, arg3));
88a8c984
RV		 9222#endif
9223#ifdef TARGET_NR_shmctl
9224 case TARGET_NR_shmctl:
72eb7ea8 9225 return do_shmctl(arg1, arg2, arg3);
88a8c984
RV		 9226#endif
9227#ifdef TARGET_NR_shmat
9228 case TARGET_NR_shmat:
72eb7ea8 9229 return do_shmat(cpu_env, arg1, arg2, arg3);
88a8c984
RV		 9230#endif
9231#ifdef TARGET_NR_shmdt
9232 case TARGET_NR_shmdt:
72eb7ea8 9233 return do_shmdt(arg1);
eeb438c1 9234#endif
31e31b8a 9235 case TARGET_NR_fsync:
72eb7ea8 9236 return get_errno(fsync(arg1));
31e31b8a 9237 case TARGET_NR_clone:
4ce6243d
PM		 9238 /* Linux manages to have three different orderings for its
9239 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
9240 * match the kernel's CONFIG_CLONE_* settings.
9241 * Microblaze is further special in that it uses a sixth
9242 * implicit argument to clone for the TLS pointer.
9243 */
9244#if defined(TARGET_MICROBLAZE)
a5b3bdcb 9245 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 9246#elif defined(TARGET_CLONE_BACKWARDS)
9247 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
9248#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 9249 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 9250#else
4ce6243d 9251 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 9252#endif
72eb7ea8 9253 return ret;
ec86b0fb
FB		 9254#ifdef __NR_exit_group
9255 /* new thread calls */
9256 case TARGET_NR_exit_group:
708b6a64 9257 preexit_cleanup(cpu_env, arg1);
72eb7ea8 9258 return get_errno(exit_group(arg1));
ec86b0fb 9259#endif
31e31b8a 9260 case TARGET_NR_setdomainname:
579a97f7 9261 if (!(p = lock_user_string(arg1)))
2852aafd 9262 return -TARGET_EFAULT;
53a5960a
PB		 9263 ret = get_errno(setdomainname(p, arg2));
9264 unlock_user(p, arg1, 0);
72eb7ea8 9265 return ret;
31e31b8a
FB		 9266 case TARGET_NR_uname:
9267 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 9268 {
9269 struct new_utsname * buf;
3b46e624 9270
579a97f7 9271 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
2852aafd 9272 return -TARGET_EFAULT;
29e619b1
FB		 9273 ret = get_errno(sys_uname(buf));
9274 if (!is_error(ret)) {
332c9781 9275 /* Overwrite the native machine name with whatever is being
29e619b1 9276 emulated. */
871f95c6
PMD		 9277 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
9278 sizeof(buf->machine));
c5937220 9279 /* Allow the user to override the reported release. */
332c9781
PM		 9280 if (qemu_uname_release && *qemu_uname_release) {
9281 g_strlcpy(buf->release, qemu_uname_release,
9282 sizeof(buf->release));
9283 }
29e619b1 9284 }
53a5960a 9285 unlock_user_struct(buf, arg1, 1);
29e619b1 9286 }
72eb7ea8 9287 return ret;
6dbad63e 9288#ifdef TARGET_I386
31e31b8a 9289 case TARGET_NR_modify_ldt:
72eb7ea8 9290 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
84409ddb 9291#if !defined(TARGET_X86_64)
5cd4393b 9292 case TARGET_NR_vm86:
72eb7ea8 9293 return do_vm86(cpu_env, arg1, arg2);
84409ddb 9294#endif
6dbad63e 9295#endif
31e31b8a 9296 case TARGET_NR_adjtimex:
19f59bce
AM		 9297 {
9298 struct timex host_buf;
9299
9300 if (target_to_host_timex(&host_buf, arg1) != 0) {
2852aafd 9301 return -TARGET_EFAULT;
19f59bce
AM		 9302 }
9303 ret = get_errno(adjtimex(&host_buf));
9304 if (!is_error(ret)) {
9305 if (host_to_target_timex(arg1, &host_buf) != 0) {
2852aafd 9306 return -TARGET_EFAULT;
19f59bce
AM		 9307 }
9308 }
9309 }
72eb7ea8 9310 return ret;
38860a03
AM		 9311#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
9312 case TARGET_NR_clock_adjtime:
9313 {
9314 struct timex htx, *phtx = &htx;
9315
9316 if (target_to_host_timex(phtx, arg2) != 0) {
2852aafd 9317 return -TARGET_EFAULT;
38860a03
AM		 9318 }
9319 ret = get_errno(clock_adjtime(arg1, phtx));
9320 if (!is_error(ret) && phtx) {
9321 if (host_to_target_timex(arg2, phtx) != 0) {
2852aafd 9322 return -TARGET_EFAULT;
38860a03
AM		 9323 }
9324 }
9325 }
72eb7ea8 9326 return ret;
38860a03 9327#endif
31e31b8a 9328 case TARGET_NR_getpgid:
72eb7ea8 9329 return get_errno(getpgid(arg1));
31e31b8a 9330 case TARGET_NR_fchdir:
72eb7ea8 9331 return get_errno(fchdir(arg1));
31e31b8a 9332 case TARGET_NR_personality:
72eb7ea8 9333 return get_errno(personality(arg1));
7a3148a9 9334#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 9335 case TARGET_NR__llseek:
9336 {
0c1592d9 9337 int64_t res;
d35b261c 9338#if !defined(__NR_llseek)
9fea273c 9339 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
0c1592d9
PM		 9340 if (res == -1) {
9341 ret = get_errno(res);
9342 } else {
9343 ret = 0;
9344 }
4f2ac237 9345#else
31e31b8a 9346 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 9347#endif
0c1592d9 9348 if ((ret == 0) && put_user_s64(res, arg4)) {
2852aafd 9349 return -TARGET_EFAULT;
0c1592d9 9350 }
31e31b8a 9351 }
72eb7ea8 9352 return ret;
7a3148a9 9353#endif
704eff6c 9354#ifdef TARGET_NR_getdents
31e31b8a 9355 case TARGET_NR_getdents:
2b3f64cb 9356#ifdef EMULATE_GETDENTS_WITH_GETDENTS
d83c8733 9357#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 9358 {
53a5960a 9359 struct target_dirent *target_dirp;
6556a833 9360 struct linux_dirent *dirp;
992f48a0 9361 abi_long count = arg3;
4add45b4 9362
0e173b24
HK		 9363 dirp = g_try_malloc(count);
9364 if (!dirp) {
259841c1 9365 return -TARGET_ENOMEM;
0da46a6e 9366 }
3b46e624 9367
4add45b4
FB		 9368 ret = get_errno(sys_getdents(arg1, dirp, count));
9369 if (!is_error(ret)) {
6556a833 9370 struct linux_dirent *de;
4add45b4
FB		 9371 struct target_dirent *tde;
9372 int len = ret;
9373 int reclen, treclen;
9374 int count1, tnamelen;
9375
9376 count1 = 0;
9377 de = dirp;
579a97f7 9378 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9379 return -TARGET_EFAULT;
4add45b4
FB		 9380 tde = target_dirp;
9381 while (len > 0) {
9382 reclen = de->d_reclen;
333858b7
DL		 9383 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
9384 assert(tnamelen >= 0);
9385 treclen = tnamelen + offsetof(struct target_dirent, d_name);
9386 assert(count1 + treclen <= count);
4add45b4 9387 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 9388 tde->d_ino = tswapal(de->d_ino);
9389 tde->d_off = tswapal(de->d_off);
333858b7 9390 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 9391 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 9392 len -= reclen;
1c5bf3bf 9393 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 9394 count1 += treclen;
9395 }
9396 ret = count1;
579a97f7 9397 unlock_user(target_dirp, arg2, ret);
4add45b4 9398 }
0e173b24 9399 g_free(dirp);
4add45b4
FB		 9400 }
9401#else
31e31b8a 9402 {
6556a833 9403 struct linux_dirent *dirp;
992f48a0 9404 abi_long count = arg3;
dab2ed99 9405
579a97f7 9406 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9407 return -TARGET_EFAULT;
72f03900 9408 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 9409 if (!is_error(ret)) {
6556a833 9410 struct linux_dirent *de;
31e31b8a
FB		 9411 int len = ret;
9412 int reclen;
9413 de = dirp;
9414 while (len > 0) {
8083a3e5 9415 reclen = de->d_reclen;
31e31b8a
FB		 9416 if (reclen > len)
9417 break;
8083a3e5 9418 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 9419 tswapls(&de->d_ino);
9420 tswapls(&de->d_off);
6556a833 9421 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 9422 len -= reclen;
9423 }
9424 }
53a5960a 9425 unlock_user(dirp, arg2, ret);
3307e236
PM		 9426 }
9427#endif
9428#else
9429 /* Implement getdents in terms of getdents64 */
9430 {
9431 struct linux_dirent64 *dirp;
9432 abi_long count = arg3;
9433
9434 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
9435 if (!dirp) {
2852aafd 9436 return -TARGET_EFAULT;
3307e236
PM		 9437 }
9438 ret = get_errno(sys_getdents64(arg1, dirp, count));
9439 if (!is_error(ret)) {
9440 /* Convert the dirent64 structs to target dirent. We do this
9441 * in-place, since we can guarantee that a target_dirent is no
9442 * larger than a dirent64; however this means we have to be
9443 * careful to read everything before writing in the new format.
9444 */
9445 struct linux_dirent64 *de;
9446 struct target_dirent *tde;
9447 int len = ret;
9448 int tlen = 0;
9449
9450 de = dirp;
9451 tde = (struct target_dirent *)dirp;
9452 while (len > 0) {
9453 int namelen, treclen;
9454 int reclen = de->d_reclen;
9455 uint64_t ino = de->d_ino;
9456 int64_t off = de->d_off;
9457 uint8_t type = de->d_type;
9458
9459 namelen = strlen(de->d_name);
9460 treclen = offsetof(struct target_dirent, d_name)
9461 + namelen + 2;
9462 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
9463
9464 memmove(tde->d_name, de->d_name, namelen + 1);
9465 tde->d_ino = tswapal(ino);
9466 tde->d_off = tswapal(off);
9467 tde->d_reclen = tswap16(treclen);
9468 /* The target_dirent type is in what was formerly a padding
9469 * byte at the end of the structure:
9470 */
9471 *(((char *)tde) + treclen - 1) = type;
9472
9473 de = (struct linux_dirent64 *)((char *)de + reclen);
9474 tde = (struct target_dirent *)((char *)tde + treclen);
9475 len -= reclen;
9476 tlen += treclen;
9477 }
9478 ret = tlen;
9479 }
9480 unlock_user(dirp, arg2, ret);
31e31b8a 9481 }
4add45b4 9482#endif
72eb7ea8 9483 return ret;
704eff6c 9484#endif /* TARGET_NR_getdents */
3ae43202 9485#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 9486 case TARGET_NR_getdents64:
9487 {
6556a833 9488 struct linux_dirent64 *dirp;
992f48a0 9489 abi_long count = arg3;
579a97f7 9490 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9491 return -TARGET_EFAULT;
dab2ed99
FB		 9492 ret = get_errno(sys_getdents64(arg1, dirp, count));
9493 if (!is_error(ret)) {
6556a833 9494 struct linux_dirent64 *de;
dab2ed99
FB		 9495 int len = ret;
9496 int reclen;
9497 de = dirp;
9498 while (len > 0) {
8083a3e5 9499 reclen = de->d_reclen;
dab2ed99
FB		 9500 if (reclen > len)
9501 break;
8083a3e5 9502 de->d_reclen = tswap16(reclen);
8582a53a
FB		 9503 tswap64s((uint64_t *)&de->d_ino);
9504 tswap64s((uint64_t *)&de->d_off);
6556a833 9505 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 9506 len -= reclen;
9507 }
9508 }
53a5960a 9509 unlock_user(dirp, arg2, ret);
dab2ed99 9510 }
72eb7ea8 9511 return ret;
a541f297 9512#endif /* TARGET_NR_getdents64 */
9468a5d4 9513#if defined(TARGET_NR__newselect)
31e31b8a 9514 case TARGET_NR__newselect:
72eb7ea8 9515 return do_select(arg1, arg2, arg3, arg4, arg5);
e5febef5 9516#endif
d8035d4c
MF		 9517#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
9518# ifdef TARGET_NR_poll
9de5e440 9519 case TARGET_NR_poll:
d8035d4c
MF		 9520# endif
9521# ifdef TARGET_NR_ppoll
9522 case TARGET_NR_ppoll:
9523# endif
9de5e440 9524 {
53a5960a 9525 struct target_pollfd *target_pfd;
9de5e440 9526 unsigned int nfds = arg2;
9de5e440 9527 struct pollfd *pfd;
7854b056 9528 unsigned int i;
9de5e440 9529
3e24bb3f
LV		 9530 pfd = NULL;
9531 target_pfd = NULL;
9532 if (nfds) {
ce9c139d 9533 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
72eb7ea8 9534 return -TARGET_EINVAL;
ce9c139d
PM		 9535 }
9536
3e24bb3f
LV		 9537 target_pfd = lock_user(VERIFY_WRITE, arg1,
9538 sizeof(struct target_pollfd) * nfds, 1);
9539 if (!target_pfd) {
2852aafd 9540 return -TARGET_EFAULT;
3e24bb3f 9541 }
d8035d4c 9542
3e24bb3f
LV		 9543 pfd = alloca(sizeof(struct pollfd) * nfds);
9544 for (i = 0; i < nfds; i++) {
9545 pfd[i].fd = tswap32(target_pfd[i].fd);
9546 pfd[i].events = tswap16(target_pfd[i].events);
9547 }
9de5e440 9548 }
d8035d4c 9549
a6130237 9550 switch (num) {
d8035d4c 9551# ifdef TARGET_NR_ppoll
a6130237
PM		 9552 case TARGET_NR_ppoll:
9553 {
d8035d4c
MF		 9554 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
9555 target_sigset_t *target_set;
9556 sigset_t _set, *set = &_set;
9557
9558 if (arg3) {
9559 if (target_to_host_timespec(timeout_ts, arg3)) {
9560 unlock_user(target_pfd, arg1, 0);
2852aafd 9561 return -TARGET_EFAULT;
d8035d4c
MF		 9562 }
9563 } else {
9564 timeout_ts = NULL;
9565 }
9566
9567 if (arg4) {
c815701e
PM		 9568 if (arg5 != sizeof(target_sigset_t)) {
9569 unlock_user(target_pfd, arg1, 0);
72eb7ea8 9570 return -TARGET_EINVAL;
c815701e
PM		 9571 }
9572
d8035d4c
MF		 9573 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
9574 if (!target_set) {
9575 unlock_user(target_pfd, arg1, 0);
2852aafd 9576 return -TARGET_EFAULT;
d8035d4c
MF		 9577 }
9578 target_to_host_sigset(set, target_set);
9579 } else {
9580 set = NULL;
9581 }
9582
a6130237
PM		 9583 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
9584 set, SIGSET_T_SIZE));
d8035d4c
MF		 9585
9586 if (!is_error(ret) && arg3) {
9587 host_to_target_timespec(arg3, timeout_ts);
9588 }
9589 if (arg4) {
9590 unlock_user(target_set, arg4, 0);
9591 }
a6130237
PM		 9592 break;
9593 }
d8035d4c 9594# endif
a6130237
PM		 9595# ifdef TARGET_NR_poll
9596 case TARGET_NR_poll:
9597 {
9598 struct timespec ts, *pts;
9599
9600 if (arg3 >= 0) {
9601 /* Convert ms to secs, ns */
9602 ts.tv_sec = arg3 / 1000;
9603 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
9604 pts = &ts;
9605 } else {
9606 /* -ve poll() timeout means "infinite" */
9607 pts = NULL;
9608 }
9609 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
9610 break;
9611 }
d8035d4c 9612# endif
a6130237
PM		 9613 default:
9614 g_assert_not_reached();
9615 }
d8035d4c 9616
9de5e440
FB		 9617 if (!is_error(ret)) {
9618 for(i = 0; i < nfds; i++) {
5cd4393b 9619 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 9620 }
9621 }
30cb4cde 9622 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440 9623 }
72eb7ea8 9624 return ret;
e5febef5 9625#endif
31e31b8a 9626 case TARGET_NR_flock:
9de5e440
FB		 9627 /* NOTE: the flock constant seems to be the same for every
9628 Linux platform */
72eb7ea8 9629 return get_errno(safe_flock(arg1, arg2));
31e31b8a
FB		 9630 case TARGET_NR_readv:
9631 {
f287b2c2
RH		 9632 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9633 if (vec != NULL) {
918c03ed 9634 ret = get_errno(safe_readv(arg1, vec, arg3));
f287b2c2
RH		 9635 unlock_iovec(vec, arg2, arg3, 1);
9636 } else {
9637 ret = -host_to_target_errno(errno);
9638 }
31e31b8a 9639 }
72eb7ea8 9640 return ret;
31e31b8a
FB		 9641 case TARGET_NR_writev:
9642 {
f287b2c2
RH		 9643 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9644 if (vec != NULL) {
918c03ed 9645 ret = get_errno(safe_writev(arg1, vec, arg3));
f287b2c2
RH		 9646 unlock_iovec(vec, arg2, arg3, 0);
9647 } else {
9648 ret = -host_to_target_errno(errno);
9649 }
31e31b8a 9650 }
72eb7ea8 9651 return ret;
0f26386c
DJ		 9652#if defined(TARGET_NR_preadv)
9653 case TARGET_NR_preadv:
9654 {
9655 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9656 if (vec != NULL) {
9ac22517
MF		 9657 unsigned long low, high;
9658
9659 target_to_host_low_high(arg4, arg5, &low, &high);
9660 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
0f26386c
DJ		 9661 unlock_iovec(vec, arg2, arg3, 1);
9662 } else {
9663 ret = -host_to_target_errno(errno);
f8d00fba
DJ		 9664 }
9665 }
72eb7ea8 9666 return ret;
f8d00fba
DJ		 9667#endif
9668#if defined(TARGET_NR_pwritev)
9669 case TARGET_NR_pwritev:
9670 {
9671 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9672 if (vec != NULL) {
9ac22517
MF		 9673 unsigned long low, high;
9674
9675 target_to_host_low_high(arg4, arg5, &low, &high);
9676 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
f8d00fba
DJ		 9677 unlock_iovec(vec, arg2, arg3, 0);
9678 } else {
9679 ret = -host_to_target_errno(errno);
0f26386c
DJ		 9680 }
9681 }
72eb7ea8 9682 return ret;
0f26386c 9683#endif
31e31b8a 9684 case TARGET_NR_getsid:
72eb7ea8 9685 return get_errno(getsid(arg1));
7a3148a9 9686#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 9687 case TARGET_NR_fdatasync:
72eb7ea8 9688 return get_errno(fdatasync(arg1));
7a3148a9 9689#endif
704eff6c 9690#ifdef TARGET_NR__sysctl
31e31b8a 9691 case TARGET_NR__sysctl:
0da46a6e 9692 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 9693 return value. */
72eb7ea8 9694 return -TARGET_ENOTDIR;
704eff6c 9695#endif
737de1d1
MF		 9696 case TARGET_NR_sched_getaffinity:
9697 {
9698 unsigned int mask_size;
9699 unsigned long *mask;
9700
9701 /*
9702 * sched_getaffinity needs multiples of ulong, so need to take
9703 * care of mismatches between target ulong and host ulong sizes.
9704 */
9705 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9706 return -TARGET_EINVAL;
737de1d1
MF		 9707 }
9708 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9709
9710 mask = alloca(mask_size);
2e0a8713 9711 memset(mask, 0, mask_size);
737de1d1
MF		 9712 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9713
9714 if (!is_error(ret)) {
be3bd286
PM		 9715 if (ret > arg2) {
9716 /* More data returned than the caller's buffer will fit.
9717 * This only happens if sizeof(abi_long) < sizeof(long)
9718 * and the caller passed us a buffer holding an odd number
9719 * of abi_longs. If the host kernel is actually using the
9720 * extra 4 bytes then fail EINVAL; otherwise we can just
9721 * ignore them and only copy the interesting part.
9722 */
9723 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9724 if (numcpus > arg2 * 8) {
72eb7ea8 9725 return -TARGET_EINVAL;
be3bd286
PM		 9726 }
9727 ret = arg2;
9728 }
9729
5fdefcf8 9730 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
2852aafd 9731 return -TARGET_EFAULT;
5fdefcf8 9732 }
737de1d1
MF		 9733 }
9734 }
72eb7ea8 9735 return ret;
737de1d1
MF		 9736 case TARGET_NR_sched_setaffinity:
9737 {
9738 unsigned int mask_size;
9739 unsigned long *mask;
9740
9741 /*
9742 * sched_setaffinity needs multiples of ulong, so need to take
9743 * care of mismatches between target ulong and host ulong sizes.
9744 */
9745 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9746 return -TARGET_EINVAL;
737de1d1
MF		 9747 }
9748 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
737de1d1 9749 mask = alloca(mask_size);
2e0a8713
ST		 9750
9751 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
9752 if (ret) {
72eb7ea8 9753 return ret;
737de1d1 9754 }
737de1d1 9755
72eb7ea8 9756 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
737de1d1 9757 }
b827c3ed
ST		 9758 case TARGET_NR_getcpu:
9759 {
9760 unsigned cpu, node;
9761 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
9762 arg2 ? &node : NULL,
9763 NULL));
9764 if (is_error(ret)) {
259841c1 9765 return ret;
b827c3ed
ST		 9766 }
9767 if (arg1 && put_user_u32(cpu, arg1)) {
2852aafd 9768 return -TARGET_EFAULT;
b827c3ed
ST		 9769 }
9770 if (arg2 && put_user_u32(node, arg2)) {
2852aafd 9771 return -TARGET_EFAULT;
b827c3ed
ST		 9772 }
9773 }
72eb7ea8 9774 return ret;
31e31b8a 9775 case TARGET_NR_sched_setparam:
5cd4393b 9776 {
53a5960a 9777 struct sched_param *target_schp;
5cd4393b 9778 struct sched_param schp;
53a5960a 9779
a1d5c5b2
TM		 9780 if (arg2 == 0) {
9781 return -TARGET_EINVAL;
9782 }
579a97f7 9783 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
2852aafd 9784 return -TARGET_EFAULT;
5cd4393b 9785 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9786 unlock_user_struct(target_schp, arg2, 0);
72eb7ea8 9787 return get_errno(sched_setparam(arg1, &schp));
5cd4393b 9788 }
31e31b8a 9789 case TARGET_NR_sched_getparam:
5cd4393b 9790 {
53a5960a 9791 struct sched_param *target_schp;
5cd4393b 9792 struct sched_param schp;
a1d5c5b2
TM		 9793
9794 if (arg2 == 0) {
9795 return -TARGET_EINVAL;
9796 }
5cd4393b
FB		 9797 ret = get_errno(sched_getparam(arg1, &schp));
9798 if (!is_error(ret)) {
579a97f7 9799 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
2852aafd 9800 return -TARGET_EFAULT;
5cd4393b 9801 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 9802 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 9803 }
9804 }
72eb7ea8 9805 return ret;
31e31b8a 9806 case TARGET_NR_sched_setscheduler:
5cd4393b 9807 {
53a5960a 9808 struct sched_param *target_schp;
5cd4393b 9809 struct sched_param schp;
a1d5c5b2
TM		 9810 if (arg3 == 0) {
9811 return -TARGET_EINVAL;
9812 }
579a97f7 9813 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
2852aafd 9814 return -TARGET_EFAULT;
5cd4393b 9815 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9816 unlock_user_struct(target_schp, arg3, 0);
72eb7ea8 9817 return get_errno(sched_setscheduler(arg1, arg2, &schp));
5cd4393b 9818 }
31e31b8a 9819 case TARGET_NR_sched_getscheduler:
72eb7ea8 9820 return get_errno(sched_getscheduler(arg1));
31e31b8a 9821 case TARGET_NR_sched_yield:
72eb7ea8 9822 return get_errno(sched_yield());
31e31b8a 9823 case TARGET_NR_sched_get_priority_max:
72eb7ea8 9824 return get_errno(sched_get_priority_max(arg1));
31e31b8a 9825 case TARGET_NR_sched_get_priority_min:
72eb7ea8 9826 return get_errno(sched_get_priority_min(arg1));
31e31b8a 9827 case TARGET_NR_sched_rr_get_interval:
5cd4393b 9828 {
5cd4393b
FB		 9829 struct timespec ts;
9830 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9831 if (!is_error(ret)) {
d4290c40 9832 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 9833 }
9834 }
72eb7ea8 9835 return ret;
31e31b8a 9836 case TARGET_NR_nanosleep:
1b6b029e 9837 {
1b6b029e 9838 struct timespec req, rem;
53a5960a 9839 target_to_host_timespec(&req, arg1);
9e518226 9840 ret = get_errno(safe_nanosleep(&req, &rem));
53a5960a
PB		 9841 if (is_error(ret) && arg2) {
9842 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 9843 }
9844 }
72eb7ea8 9845 return ret;
31e31b8a 9846 case TARGET_NR_prctl:
1e6722f8
PM		 9847 switch (arg1) {
9848 case PR_GET_PDEATHSIG:
9849 {
9850 int deathsig;
9851 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9852 if (!is_error(ret) && arg2
9853 && put_user_ual(deathsig, arg2)) {
2852aafd 9854 return -TARGET_EFAULT;
e5574487 9855 }
72eb7ea8 9856 return ret;
1e6722f8 9857 }
db9526b1
PM		 9858#ifdef PR_GET_NAME
9859 case PR_GET_NAME:
9860 {
9861 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9862 if (!name) {
2852aafd 9863 return -TARGET_EFAULT;
db9526b1
PM		 9864 }
9865 ret = get_errno(prctl(arg1, (unsigned long)name,
9866 arg3, arg4, arg5));
9867 unlock_user(name, arg2, 16);
72eb7ea8 9868 return ret;
db9526b1
PM		 9869 }
9870 case PR_SET_NAME:
9871 {
9872 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9873 if (!name) {
2852aafd 9874 return -TARGET_EFAULT;
db9526b1
PM		 9875 }
9876 ret = get_errno(prctl(arg1, (unsigned long)name,
9877 arg3, arg4, arg5));
9878 unlock_user(name, arg2, 0);
72eb7ea8 9879 return ret;
db9526b1
PM		 9880 }
9881#endif
5b702ffd
SM		 9882#ifdef TARGET_MIPS
9883 case TARGET_PR_GET_FP_MODE:
64ea3d67
SM		 9884 {
9885 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9886 ret = 0;
9887 if (env->CP0_Status & (1 << CP0St_FR)) {
9888 ret |= TARGET_PR_FP_MODE_FR;
9889 }
9890 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
9891 ret |= TARGET_PR_FP_MODE_FRE;
9892 }
9893 return ret;
9894 }
5b702ffd 9895 case TARGET_PR_SET_FP_MODE:
64ea3d67
SM		 9896 {
9897 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9898 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
6456c510 9899 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
64ea3d67
SM		 9900 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
9901 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
9902
6456c510
SM		 9903 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
9904 TARGET_PR_FP_MODE_FRE;
9905
9906 /* If nothing to change, return right away, successfully. */
9907 if (old_fr == new_fr && old_fre == new_fre) {
9908 return 0;
9909 }
9910 /* Check the value is valid */
9911 if (arg2 & ~known_bits) {
9912 return -TARGET_EOPNOTSUPP;
9913 }
9914 /* Setting FRE without FR is not supported. */
9915 if (new_fre && !new_fr) {
9916 return -TARGET_EOPNOTSUPP;
9917 }
64ea3d67
SM		 9918 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
9919 /* FR1 is not supported */
9920 return -TARGET_EOPNOTSUPP;
9921 }
9922 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
9923 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
9924 /* cannot set FR=0 */
9925 return -TARGET_EOPNOTSUPP;
9926 }
9927 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
9928 /* Cannot set FRE=1 */
9929 return -TARGET_EOPNOTSUPP;
9930 }
9931
9932 int i;
9933 fpr_t *fpr = env->active_fpu.fpr;
9934 for (i = 0; i < 32 ; i += 2) {
9935 if (!old_fr && new_fr) {
9936 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
9937 } else if (old_fr && !new_fr) {
9938 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
9939 }
9940 }
9941
9942 if (new_fr) {
9943 env->CP0_Status |= (1 << CP0St_FR);
9944 env->hflags |= MIPS_HFLAG_F64;
9945 } else {
9946 env->CP0_Status &= ~(1 << CP0St_FR);
6456c510 9947 env->hflags &= ~MIPS_HFLAG_F64;
64ea3d67
SM		 9948 }
9949 if (new_fre) {
9950 env->CP0_Config5 |= (1 << CP0C5_FRE);
9951 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
9952 env->hflags |= MIPS_HFLAG_FRE;
9953 }
9954 } else {
9955 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
6456c510 9956 env->hflags &= ~MIPS_HFLAG_FRE;
64ea3d67
SM		 9957 }
9958
9959 return 0;
9960 }
5b702ffd 9961#endif /* MIPS */
85fc7167
RH		 9962#ifdef TARGET_AARCH64
9963 case TARGET_PR_SVE_SET_VL:
adf92eab
RH		 9964 /*
9965 * We cannot support either PR_SVE_SET_VL_ONEXEC or
9966 * PR_SVE_VL_INHERIT. Note the kernel definition
9967 * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
9968 * even though the current architectural maximum is VQ=16.
9969 */
85fc7167 9970 ret = -TARGET_EINVAL;
2fc0cc0e 9971 if (cpu_isar_feature(aa64_sve, env_archcpu(cpu_env))
adf92eab 9972 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
85fc7167 9973 CPUARMState *env = cpu_env;
2fc0cc0e 9974 ARMCPU *cpu = env_archcpu(env);
adf92eab
RH		 9975 uint32_t vq, old_vq;
9976
9977 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
9978 vq = MAX(arg2 / 16, 1);
9979 vq = MIN(vq, cpu->sve_max_vq);
85fc7167
RH		 9980
9981 if (vq < old_vq) {
9982 aarch64_sve_narrow_vq(env, vq);
9983 }
9984 env->vfp.zcr_el[1] = vq - 1;
9985 ret = vq * 16;
9986 }
72eb7ea8 9987 return ret;
85fc7167
RH		 9988 case TARGET_PR_SVE_GET_VL:
9989 ret = -TARGET_EINVAL;
cd208a1c 9990 {
2fc0cc0e 9991 ARMCPU *cpu = env_archcpu(cpu_env);
cd208a1c
RH		 9992 if (cpu_isar_feature(aa64_sve, cpu)) {
9993 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
9994 }
85fc7167 9995 }
72eb7ea8 9996 return ret;
bff63fbf
RH		 9997 case TARGET_PR_PAC_RESET_KEYS:
9998 {
9999 CPUARMState *env = cpu_env;
2fc0cc0e 10000 ARMCPU *cpu = env_archcpu(env);
bff63fbf
RH		 10001
10002 if (arg3 || arg4 || arg5) {
10003 return -TARGET_EINVAL;
10004 }
10005 if (cpu_isar_feature(aa64_pauth, cpu)) {
10006 int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY |
10007 TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY |
10008 TARGET_PR_PAC_APGAKEY);
51977e25
RH		 10009 int ret = 0;
10010 Error *err = NULL;
10011
bff63fbf
RH		 10012 if (arg2 == 0) {
10013 arg2 = all;
10014 } else if (arg2 & ~all) {
10015 return -TARGET_EINVAL;
10016 }
10017 if (arg2 & TARGET_PR_PAC_APIAKEY) {
108b3ba8 10018 ret |= qemu_guest_getrandom(&env->keys.apia,
51977e25 10019 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10020 }
10021 if (arg2 & TARGET_PR_PAC_APIBKEY) {
108b3ba8 10022 ret |= qemu_guest_getrandom(&env->keys.apib,
51977e25 10023 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10024 }
10025 if (arg2 & TARGET_PR_PAC_APDAKEY) {
108b3ba8 10026 ret |= qemu_guest_getrandom(&env->keys.apda,
51977e25 10027 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10028 }
10029 if (arg2 & TARGET_PR_PAC_APDBKEY) {
108b3ba8 10030 ret |= qemu_guest_getrandom(&env->keys.apdb,
51977e25 10031 sizeof(ARMPACKey), &err);
bff63fbf
RH		 10032 }
10033 if (arg2 & TARGET_PR_PAC_APGAKEY) {
108b3ba8 10034 ret |= qemu_guest_getrandom(&env->keys.apga,
51977e25
RH		 10035 sizeof(ARMPACKey), &err);
10036 }
10037 if (ret != 0) {
10038 /*
10039 * Some unknown failure in the crypto. The best
10040 * we can do is log it and fail the syscall.
10041 * The real syscall cannot fail this way.
10042 */
10043 qemu_log_mask(LOG_UNIMP,
10044 "PR_PAC_RESET_KEYS: Crypto failure: %s",
10045 error_get_pretty(err));
10046 error_free(err);
10047 return -TARGET_EIO;
bff63fbf
RH		 10048 }
10049 return 0;
10050 }
10051 }
10052 return -TARGET_EINVAL;
85fc7167 10053#endif /* AARCH64 */
a8b154a6
JC		 10054 case PR_GET_SECCOMP:
10055 case PR_SET_SECCOMP:
10056 /* Disable seccomp to prevent the target disabling syscalls we
10057 * need. */
72eb7ea8 10058 return -TARGET_EINVAL;
1e6722f8
PM		 10059 default:
10060 /* Most prctl options have no pointer arguments */
72eb7ea8 10061 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
1e6722f8 10062 }
39b9aae1 10063 break;
d2fd1af7
FB		 10064#ifdef TARGET_NR_arch_prctl
10065 case TARGET_NR_arch_prctl:
10066#if defined(TARGET_I386) && !defined(TARGET_ABI32)
72eb7ea8 10067 return do_arch_prctl(cpu_env, arg1, arg2);
d2fd1af7 10068#else
1a7b2b13 10069#error unreachable
d2fd1af7
FB		 10070#endif
10071#endif
f2c7ba15
AJ		 10072#ifdef TARGET_NR_pread64
10073 case TARGET_NR_pread64:
8bf8e9df 10074 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 10075 arg4 = arg5;
10076 arg5 = arg6;
10077 }
2bd3f899
PM		 10078 if (arg2 == 0 && arg3 == 0) {
10079 /* Special-case NULL buffer and zero length, which should succeed */
10080 p = 0;
10081 } else {
10082 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10083 if (!p) {
10084 return -TARGET_EFAULT;
10085 }
10086 }
f2c7ba15
AJ		 10087 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
10088 unlock_user(p, arg2, ret);
72eb7ea8 10089 return ret;
f2c7ba15 10090 case TARGET_NR_pwrite64:
8bf8e9df 10091 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 10092 arg4 = arg5;
10093 arg5 = arg6;
10094 }
2bd3f899
PM		 10095 if (arg2 == 0 && arg3 == 0) {
10096 /* Special-case NULL buffer and zero length, which should succeed */
10097 p = 0;
10098 } else {
10099 p = lock_user(VERIFY_READ, arg2, arg3, 1);
10100 if (!p) {
10101 return -TARGET_EFAULT;
10102 }
10103 }
f2c7ba15
AJ		 10104 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
10105 unlock_user(p, arg2, 0);
72eb7ea8 10106 return ret;
67867308 10107#endif
31e31b8a 10108 case TARGET_NR_getcwd:
579a97f7 10109 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
2852aafd 10110 return -TARGET_EFAULT;
53a5960a
PB		 10111 ret = get_errno(sys_getcwd1(p, arg2));
10112 unlock_user(p, arg1, ret);
72eb7ea8 10113 return ret;
31e31b8a
FB		 10114 case TARGET_NR_capget:
10115 case TARGET_NR_capset:
e0eb210e
PM		 10116 {
10117 struct target_user_cap_header *target_header;
10118 struct target_user_cap_data *target_data = NULL;
10119 struct __user_cap_header_struct header;
10120 struct __user_cap_data_struct data[2];
10121 struct __user_cap_data_struct *dataptr = NULL;
10122 int i, target_datalen;
10123 int data_items = 1;
10124
10125 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
2852aafd 10126 return -TARGET_EFAULT;
e0eb210e
PM		 10127 }
10128 header.version = tswap32(target_header->version);
10129 header.pid = tswap32(target_header->pid);
10130
ec864874 10131 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 10132 /* Version 2 and up takes pointer to two user_data structs */
10133 data_items = 2;
10134 }
10135
10136 target_datalen = sizeof(*target_data) * data_items;
10137
10138 if (arg2) {
10139 if (num == TARGET_NR_capget) {
10140 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
10141 } else {
10142 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
10143 }
10144 if (!target_data) {
10145 unlock_user_struct(target_header, arg1, 0);
2852aafd 10146 return -TARGET_EFAULT;
e0eb210e
PM		 10147 }
10148
10149 if (num == TARGET_NR_capset) {
10150 for (i = 0; i < data_items; i++) {
10151 data[i].effective = tswap32(target_data[i].effective);
10152 data[i].permitted = tswap32(target_data[i].permitted);
10153 data[i].inheritable = tswap32(target_data[i].inheritable);
10154 }
10155 }
10156
10157 dataptr = data;
10158 }
10159
10160 if (num == TARGET_NR_capget) {
10161 ret = get_errno(capget(&header, dataptr));
10162 } else {
10163 ret = get_errno(capset(&header, dataptr));
10164 }
10165
10166 /* The kernel always updates version for both capget and capset */
10167 target_header->version = tswap32(header.version);
10168 unlock_user_struct(target_header, arg1, 1);
10169
10170 if (arg2) {
10171 if (num == TARGET_NR_capget) {
10172 for (i = 0; i < data_items; i++) {
10173 target_data[i].effective = tswap32(data[i].effective);
10174 target_data[i].permitted = tswap32(data[i].permitted);
10175 target_data[i].inheritable = tswap32(data[i].inheritable);
10176 }
10177 unlock_user(target_data, arg2, target_datalen);
10178 } else {
10179 unlock_user(target_data, arg2, 0);
10180 }
10181 }
72eb7ea8 10182 return ret;
e0eb210e 10183 }
31e31b8a 10184 case TARGET_NR_sigaltstack:
72eb7ea8
RH		 10185 return do_sigaltstack(arg1, arg2,
10186 get_sp_from_cpustate((CPUArchState *)cpu_env));
a8fd1aba
PM		 10187
10188#ifdef CONFIG_SENDFILE
4f7f8924 10189#ifdef TARGET_NR_sendfile
a8fd1aba
PM		 10190 case TARGET_NR_sendfile:
10191 {
10192 off_t *offp = NULL;
10193 off_t off;
10194 if (arg3) {
10195 ret = get_user_sal(off, arg3);
10196 if (is_error(ret)) {
72eb7ea8 10197 return ret;
a8fd1aba
PM		 10198 }
10199 offp = &off;
10200 }
10201 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
10202 if (!is_error(ret) && arg3) {
10203 abi_long ret2 = put_user_sal(off, arg3);
10204 if (is_error(ret2)) {
10205 ret = ret2;
10206 }
10207 }
72eb7ea8 10208 return ret;
a8fd1aba 10209 }
4f7f8924 10210#endif
a8fd1aba
PM		 10211#ifdef TARGET_NR_sendfile64
10212 case TARGET_NR_sendfile64:
10213 {
10214 off_t *offp = NULL;
10215 off_t off;
10216 if (arg3) {
10217 ret = get_user_s64(off, arg3);
10218 if (is_error(ret)) {
72eb7ea8 10219 return ret;
a8fd1aba
PM		 10220 }
10221 offp = &off;
10222 }
10223 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
10224 if (!is_error(ret) && arg3) {
10225 abi_long ret2 = put_user_s64(off, arg3);
10226 if (is_error(ret2)) {
10227 ret = ret2;
10228 }
10229 }
72eb7ea8 10230 return ret;
a8fd1aba
PM		 10231 }
10232#endif
ebc05488 10233#endif
048f6b4d 10234#ifdef TARGET_NR_vfork
31e31b8a 10235 case TARGET_NR_vfork:
72eb7ea8
RH		 10236 return get_errno(do_fork(cpu_env,
10237 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
10238 0, 0, 0, 0));
048f6b4d 10239#endif
ebc05488 10240#ifdef TARGET_NR_ugetrlimit
31e31b8a 10241 case TARGET_NR_ugetrlimit:
728584be
FB		 10242 {
10243 struct rlimit rlim;
e22b7015
WT		 10244 int resource = target_to_host_resource(arg1);
10245 ret = get_errno(getrlimit(resource, &rlim));
728584be 10246 if (!is_error(ret)) {
53a5960a 10247 struct target_rlimit *target_rlim;
579a97f7 10248 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 10249 return -TARGET_EFAULT;
81bbe906
TY		 10250 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
10251 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 10252 unlock_user_struct(target_rlim, arg2, 1);
728584be 10253 }
72eb7ea8 10254 return ret;
728584be 10255 }
ebc05488 10256#endif
a315a145 10257#ifdef TARGET_NR_truncate64
31e31b8a 10258 case TARGET_NR_truncate64:
579a97f7 10259 if (!(p = lock_user_string(arg1)))
2852aafd 10260 return -TARGET_EFAULT;
53a5960a
PB		 10261 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
10262 unlock_user(p, arg1, 0);
72eb7ea8 10263 return ret;
a315a145
FB		 10264#endif
10265#ifdef TARGET_NR_ftruncate64
31e31b8a 10266 case TARGET_NR_ftruncate64:
72eb7ea8 10267 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
a315a145
FB		 10268#endif
10269#ifdef TARGET_NR_stat64
31e31b8a 10270 case TARGET_NR_stat64:
2852aafd
RH		 10271 if (!(p = lock_user_string(arg1))) {
10272 return -TARGET_EFAULT;
10273 }
53a5960a
PB		 10274 ret = get_errno(stat(path(p), &st));
10275 unlock_user(p, arg1, 0);
6a24a778
AZ		 10276 if (!is_error(ret))
10277 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 10278 return ret;
a315a145
FB		 10279#endif
10280#ifdef TARGET_NR_lstat64
31e31b8a 10281 case TARGET_NR_lstat64:
2852aafd
RH		 10282 if (!(p = lock_user_string(arg1))) {
10283 return -TARGET_EFAULT;
10284 }
53a5960a
PB		 10285 ret = get_errno(lstat(path(p), &st));
10286 unlock_user(p, arg1, 0);
6a24a778
AZ		 10287 if (!is_error(ret))
10288 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 10289 return ret;
a315a145
FB		 10290#endif
10291#ifdef TARGET_NR_fstat64
31e31b8a 10292 case TARGET_NR_fstat64:
6a24a778
AZ		 10293 ret = get_errno(fstat(arg1, &st));
10294 if (!is_error(ret))
10295 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 10296 return ret;
ce4defa0 10297#endif
c0d472b1 10298#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 10299#ifdef TARGET_NR_fstatat64
6a24a778 10300 case TARGET_NR_fstatat64:
9d33b76b
AJ		 10301#endif
10302#ifdef TARGET_NR_newfstatat
10303 case TARGET_NR_newfstatat:
10304#endif
2852aafd
RH		 10305 if (!(p = lock_user_string(arg2))) {
10306 return -TARGET_EFAULT;
10307 }
c0d472b1 10308 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
2852aafd 10309 unlock_user(p, arg2, 0);
6a24a778
AZ		 10310 if (!is_error(ret))
10311 ret = host_to_target_stat64(cpu_env, arg3, &st);
72eb7ea8 10312 return ret;
a315a145 10313#endif
efa92184
AR		 10314#if defined(TARGET_NR_statx)
10315 case TARGET_NR_statx:
10316 {
10317 struct target_statx *target_stx;
10318 int dirfd = arg1;
10319 int flags = arg3;
10320
10321 p = lock_user_string(arg2);
10322 if (p == NULL) {
10323 return -TARGET_EFAULT;
10324 }
10325#if defined(__NR_statx)
10326 {
10327 /*
10328 * It is assumed that struct statx is architecture independent.
10329 */
10330 struct target_statx host_stx;
10331 int mask = arg4;
10332
10333 ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx));
10334 if (!is_error(ret)) {
10335 if (host_to_target_statx(&host_stx, arg5) != 0) {
10336 unlock_user(p, arg2, 0);
10337 return -TARGET_EFAULT;
10338 }
10339 }
10340
10341 if (ret != -TARGET_ENOSYS) {
10342 unlock_user(p, arg2, 0);
10343 return ret;
10344 }
10345 }
10346#endif
10347 ret = get_errno(fstatat(dirfd, path(p), &st, flags));
10348 unlock_user(p, arg2, 0);
10349
10350 if (!is_error(ret)) {
10351 if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) {
10352 return -TARGET_EFAULT;
10353 }
10354 memset(target_stx, 0, sizeof(*target_stx));
10355 __put_user(major(st.st_dev), &target_stx->stx_dev_major);
10356 __put_user(minor(st.st_dev), &target_stx->stx_dev_minor);
10357 __put_user(st.st_ino, &target_stx->stx_ino);
10358 __put_user(st.st_mode, &target_stx->stx_mode);
10359 __put_user(st.st_uid, &target_stx->stx_uid);
10360 __put_user(st.st_gid, &target_stx->stx_gid);
10361 __put_user(st.st_nlink, &target_stx->stx_nlink);
10362 __put_user(major(st.st_rdev), &target_stx->stx_rdev_major);
10363 __put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor);
10364 __put_user(st.st_size, &target_stx->stx_size);
10365 __put_user(st.st_blksize, &target_stx->stx_blksize);
10366 __put_user(st.st_blocks, &target_stx->stx_blocks);
10367 __put_user(st.st_atime, &target_stx->stx_atime.tv_sec);
10368 __put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec);
10369 __put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec);
10370 unlock_user_struct(target_stx, arg5, 1);
10371 }
10372 }
10373 return ret;
10374#endif
704eff6c 10375#ifdef TARGET_NR_lchown
67867308 10376 case TARGET_NR_lchown:
579a97f7 10377 if (!(p = lock_user_string(arg1)))
2852aafd 10378 return -TARGET_EFAULT;
53a5960a
PB		 10379 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
10380 unlock_user(p, arg1, 0);
72eb7ea8 10381 return ret;
704eff6c 10382#endif
0c866a7e 10383#ifdef TARGET_NR_getuid
67867308 10384 case TARGET_NR_getuid:
72eb7ea8 10385 return get_errno(high2lowuid(getuid()));
0c866a7e
RV		 10386#endif
10387#ifdef TARGET_NR_getgid
67867308 10388 case TARGET_NR_getgid:
72eb7ea8 10389 return get_errno(high2lowgid(getgid()));
0c866a7e
RV		 10390#endif
10391#ifdef TARGET_NR_geteuid
67867308 10392 case TARGET_NR_geteuid:
72eb7ea8 10393 return get_errno(high2lowuid(geteuid()));
0c866a7e
RV		 10394#endif
10395#ifdef TARGET_NR_getegid
67867308 10396 case TARGET_NR_getegid:
72eb7ea8 10397 return get_errno(high2lowgid(getegid()));
0c866a7e 10398#endif
67867308 10399 case TARGET_NR_setreuid:
72eb7ea8 10400 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
67867308 10401 case TARGET_NR_setregid:
72eb7ea8 10402 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
67867308
FB		 10403 case TARGET_NR_getgroups:
10404 {
10405 int gidsetsize = arg1;
0c866a7e 10406 target_id *target_grouplist;
67867308
FB		 10407 gid_t *grouplist;
10408 int i;
10409
10410 grouplist = alloca(gidsetsize * sizeof(gid_t));
10411 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10412 if (gidsetsize == 0)
72eb7ea8 10413 return ret;
67867308 10414 if (!is_error(ret)) {
03903ffc 10415 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7 10416 if (!target_grouplist)
2852aafd 10417 return -TARGET_EFAULT;
a2155fcc 10418 for(i = 0;i < ret; i++)
0c866a7e 10419 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 10420 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 10421 }
10422 }
72eb7ea8 10423 return ret;
67867308
FB		 10424 case TARGET_NR_setgroups:
10425 {
10426 int gidsetsize = arg1;
0c866a7e 10427 target_id *target_grouplist;
f2b79ce9 10428 gid_t *grouplist = NULL;
67867308 10429 int i;
f2b79ce9
DA		 10430 if (gidsetsize) {
10431 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 10432 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9 10433 if (!target_grouplist) {
259841c1 10434 return -TARGET_EFAULT;
f2b79ce9
DA		 10435 }
10436 for (i = 0; i < gidsetsize; i++) {
10437 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
10438 }
10439 unlock_user(target_grouplist, arg2, 0);
579a97f7 10440 }
72eb7ea8 10441 return get_errno(setgroups(gidsetsize, grouplist));
67867308 10442 }
67867308 10443 case TARGET_NR_fchown:
72eb7ea8 10444 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
c0d472b1 10445#if defined(TARGET_NR_fchownat)
ccfa72b7 10446 case TARGET_NR_fchownat:
579a97f7 10447 if (!(p = lock_user_string(arg2)))
2852aafd 10448 return -TARGET_EFAULT;
c0d472b1
PM		 10449 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
10450 low2highgid(arg4), arg5));
579a97f7 10451 unlock_user(p, arg2, 0);
72eb7ea8 10452 return ret;
ccfa72b7 10453#endif
67867308
FB		 10454#ifdef TARGET_NR_setresuid
10455 case TARGET_NR_setresuid:
72eb7ea8
RH		 10456 return get_errno(sys_setresuid(low2highuid(arg1),
10457 low2highuid(arg2),
10458 low2highuid(arg3)));
67867308
FB		 10459#endif
10460#ifdef TARGET_NR_getresuid
10461 case TARGET_NR_getresuid:
10462 {
53a5960a 10463 uid_t ruid, euid, suid;
67867308
FB		 10464 ret = get_errno(getresuid(&ruid, &euid, &suid));
10465 if (!is_error(ret)) {
76ca310a
PM		 10466 if (put_user_id(high2lowuid(ruid), arg1)
10467 || put_user_id(high2lowuid(euid), arg2)
10468 || put_user_id(high2lowuid(suid), arg3))
2852aafd 10469 return -TARGET_EFAULT;
67867308
FB		 10470 }
10471 }
72eb7ea8 10472 return ret;
67867308
FB		 10473#endif
10474#ifdef TARGET_NR_getresgid
10475 case TARGET_NR_setresgid:
72eb7ea8
RH		 10476 return get_errno(sys_setresgid(low2highgid(arg1),
10477 low2highgid(arg2),
10478 low2highgid(arg3)));
67867308
FB		 10479#endif
10480#ifdef TARGET_NR_getresgid
10481 case TARGET_NR_getresgid:
10482 {
53a5960a 10483 gid_t rgid, egid, sgid;
67867308
FB		 10484 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10485 if (!is_error(ret)) {
76ca310a
PM		 10486 if (put_user_id(high2lowgid(rgid), arg1)
10487 || put_user_id(high2lowgid(egid), arg2)
10488 || put_user_id(high2lowgid(sgid), arg3))
2852aafd 10489 return -TARGET_EFAULT;
67867308
FB		 10490 }
10491 }
72eb7ea8 10492 return ret;
67867308 10493#endif
704eff6c 10494#ifdef TARGET_NR_chown
67867308 10495 case TARGET_NR_chown:
579a97f7 10496 if (!(p = lock_user_string(arg1)))
2852aafd 10497 return -TARGET_EFAULT;
53a5960a
PB		 10498 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
10499 unlock_user(p, arg1, 0);
72eb7ea8 10500 return ret;
704eff6c 10501#endif
67867308 10502 case TARGET_NR_setuid:
72eb7ea8 10503 return get_errno(sys_setuid(low2highuid(arg1)));
67867308 10504 case TARGET_NR_setgid:
72eb7ea8 10505 return get_errno(sys_setgid(low2highgid(arg1)));
67867308 10506 case TARGET_NR_setfsuid:
72eb7ea8 10507 return get_errno(setfsuid(arg1));
67867308 10508 case TARGET_NR_setfsgid:
72eb7ea8 10509 return get_errno(setfsgid(arg1));
67867308 10510
a315a145 10511#ifdef TARGET_NR_lchown32
31e31b8a 10512 case TARGET_NR_lchown32:
579a97f7 10513 if (!(p = lock_user_string(arg1)))
2852aafd 10514 return -TARGET_EFAULT;
53a5960a
PB		 10515 ret = get_errno(lchown(p, arg2, arg3));
10516 unlock_user(p, arg1, 0);
72eb7ea8 10517 return ret;
a315a145
FB		 10518#endif
10519#ifdef TARGET_NR_getuid32
31e31b8a 10520 case TARGET_NR_getuid32:
72eb7ea8 10521 return get_errno(getuid());
a315a145 10522#endif
64b4d28c
AJ		 10523
10524#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
10525 /* Alpha specific */
10526 case TARGET_NR_getxuid:
ba0e276d
RH		 10527 {
10528 uid_t euid;
10529 euid=geteuid();
10530 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
10531 }
72eb7ea8 10532 return get_errno(getuid());
64b4d28c
AJ		 10533#endif
10534#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
10535 /* Alpha specific */
10536 case TARGET_NR_getxgid:
ba0e276d
RH		 10537 {
10538 uid_t egid;
10539 egid=getegid();
10540 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
10541 }
72eb7ea8 10542 return get_errno(getgid());
64b4d28c 10543#endif
ba0e276d
RH		 10544#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
10545 /* Alpha specific */
10546 case TARGET_NR_osf_getsysinfo:
10547 ret = -TARGET_EOPNOTSUPP;
10548 switch (arg1) {
10549 case TARGET_GSI_IEEE_FP_CONTROL:
10550 {
21ba8564
RH		 10551 uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env);
10552 uint64_t swcr = ((CPUAlphaState *)cpu_env)->swcr;
10553
10554 swcr &= ~SWCR_STATUS_MASK;
10555 swcr |= (fpcr >> 35) & SWCR_STATUS_MASK;
ba0e276d
RH		 10556
10557 if (put_user_u64 (swcr, arg2))
2852aafd 10558 return -TARGET_EFAULT;
ba0e276d
RH		 10559 ret = 0;
10560 }
10561 break;
10562
10563 /* case GSI_IEEE_STATE_AT_SIGNAL:
10564 -- Not implemented in linux kernel.
10565 case GSI_UACPROC:
10566 -- Retrieves current unaligned access state; not much used.
10567 case GSI_PROC_TYPE:
10568 -- Retrieves implver information; surely not used.
10569 case GSI_GET_HWRPB:
10570 -- Grabs a copy of the HWRPB; surely not used.
10571 */
10572 }
72eb7ea8 10573 return ret;
ba0e276d
RH		 10574#endif
10575#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
10576 /* Alpha specific */
10577 case TARGET_NR_osf_setsysinfo:
10578 ret = -TARGET_EOPNOTSUPP;
10579 switch (arg1) {
10580 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d 10581 {
21ba8564 10582 uint64_t swcr, fpcr;
ba0e276d 10583
6e06d515 10584 if (get_user_u64 (swcr, arg2)) {
2852aafd 10585 return -TARGET_EFAULT;
6e06d515 10586 }
ba0e276d 10587
21ba8564
RH		 10588 /*
10589 * The kernel calls swcr_update_status to update the
10590 * status bits from the fpcr at every point that it
10591 * could be queried. Therefore, we store the status
10592 * bits only in FPCR.
10593 */
10594 ((CPUAlphaState *)cpu_env)->swcr
10595 = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK);
10596
10597 fpcr = cpu_alpha_load_fpcr(cpu_env);
10598 fpcr &= ((uint64_t)FPCR_DYN_MASK << 32);
10599 fpcr |= alpha_ieee_swcr_to_fpcr(swcr);
6e06d515 10600 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 10601 ret = 0;
6e06d515
RH		 10602 }
10603 break;
10604
10605 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
10606 {
21ba8564 10607 uint64_t exc, fpcr, fex;
6e06d515
RH		 10608
10609 if (get_user_u64(exc, arg2)) {
2852aafd 10610 return -TARGET_EFAULT;
6e06d515 10611 }
21ba8564
RH		 10612 exc &= SWCR_STATUS_MASK;
10613 fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 10614
21ba8564
RH		 10615 /* Old exceptions are not signaled. */
10616 fex = alpha_ieee_fpcr_to_swcr(fpcr);
10617 fex = exc & ~fex;
10618 fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT;
10619 fex &= ((CPUArchState *)cpu_env)->swcr;
6e06d515 10620
21ba8564
RH		 10621 /* Update the hardware fpcr. */
10622 fpcr |= alpha_ieee_swcr_to_fpcr(exc);
6e06d515 10623 cpu_alpha_store_fpcr(cpu_env, fpcr);
6e06d515 10624
21ba8564
RH		 10625 if (fex) {
10626 int si_code = TARGET_FPE_FLTUNK;
6e06d515 10627 target_siginfo_t info;
21ba8564
RH		 10628
10629 if (fex & SWCR_TRAP_ENABLE_DNO) {
10630 si_code = TARGET_FPE_FLTUND;
10631 }
10632 if (fex & SWCR_TRAP_ENABLE_INE) {
10633 si_code = TARGET_FPE_FLTRES;
10634 }
10635 if (fex & SWCR_TRAP_ENABLE_UNF) {
10636 si_code = TARGET_FPE_FLTUND;
10637 }
10638 if (fex & SWCR_TRAP_ENABLE_OVF) {
10639 si_code = TARGET_FPE_FLTOVF;
10640 }
10641 if (fex & SWCR_TRAP_ENABLE_DZE) {
10642 si_code = TARGET_FPE_FLTDIV;
10643 }
10644 if (fex & SWCR_TRAP_ENABLE_INV) {
10645 si_code = TARGET_FPE_FLTINV;
10646 }
10647
6e06d515
RH		 10648 info.si_signo = SIGFPE;
10649 info.si_errno = 0;
10650 info.si_code = si_code;
10651 info._sifields._sigfault._addr
10652 = ((CPUArchState *)cpu_env)->pc;
9d2803f7
PM		 10653 queue_signal((CPUArchState *)cpu_env, info.si_signo,
10654 QEMU_SI_FAULT, &info);
ba0e276d 10655 }
21ba8564 10656 ret = 0;
ba0e276d
RH		 10657 }
10658 break;
10659
10660 /* case SSI_NVPAIRS:
10661 -- Used with SSIN_UACPROC to enable unaligned accesses.
10662 case SSI_IEEE_STATE_AT_SIGNAL:
10663 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
10664 -- Not implemented in linux kernel
10665 */
10666 }
72eb7ea8 10667 return ret;
ba0e276d
RH		 10668#endif
10669#ifdef TARGET_NR_osf_sigprocmask
10670 /* Alpha specific. */
10671 case TARGET_NR_osf_sigprocmask:
10672 {
10673 abi_ulong mask;
bc088ba1 10674 int how;
ba0e276d
RH		 10675 sigset_t set, oldset;
10676
10677 switch(arg1) {
10678 case TARGET_SIG_BLOCK:
10679 how = SIG_BLOCK;
10680 break;
10681 case TARGET_SIG_UNBLOCK:
10682 how = SIG_UNBLOCK;
10683 break;
10684 case TARGET_SIG_SETMASK:
10685 how = SIG_SETMASK;
10686 break;
10687 default:
259841c1 10688 return -TARGET_EINVAL;
ba0e276d
RH		 10689 }
10690 mask = arg2;
10691 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 10692 ret = do_sigprocmask(how, &set, &oldset);
10693 if (!ret) {
10694 host_to_target_old_sigset(&mask, &oldset);
10695 ret = mask;
10696 }
ba0e276d 10697 }
72eb7ea8 10698 return ret;
ba0e276d 10699#endif
64b4d28c 10700
a315a145 10701#ifdef TARGET_NR_getgid32
31e31b8a 10702 case TARGET_NR_getgid32:
72eb7ea8 10703 return get_errno(getgid());
a315a145
FB		 10704#endif
10705#ifdef TARGET_NR_geteuid32
31e31b8a 10706 case TARGET_NR_geteuid32:
72eb7ea8 10707 return get_errno(geteuid());
a315a145
FB		 10708#endif
10709#ifdef TARGET_NR_getegid32
31e31b8a 10710 case TARGET_NR_getegid32:
72eb7ea8 10711 return get_errno(getegid());
a315a145
FB		 10712#endif
10713#ifdef TARGET_NR_setreuid32
31e31b8a 10714 case TARGET_NR_setreuid32:
72eb7ea8 10715 return get_errno(setreuid(arg1, arg2));
a315a145
FB		 10716#endif
10717#ifdef TARGET_NR_setregid32
31e31b8a 10718 case TARGET_NR_setregid32:
72eb7ea8 10719 return get_errno(setregid(arg1, arg2));
a315a145
FB		 10720#endif
10721#ifdef TARGET_NR_getgroups32
31e31b8a 10722 case TARGET_NR_getgroups32:
99c475ab
FB		 10723 {
10724 int gidsetsize = arg1;
53a5960a 10725 uint32_t *target_grouplist;
99c475ab
FB		 10726 gid_t *grouplist;
10727 int i;
10728
10729 grouplist = alloca(gidsetsize * sizeof(gid_t));
10730 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10731 if (gidsetsize == 0)
72eb7ea8 10732 return ret;
99c475ab 10733 if (!is_error(ret)) {
579a97f7
FB		 10734 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
10735 if (!target_grouplist) {
259841c1 10736 return -TARGET_EFAULT;
579a97f7 10737 }
a2155fcc 10738 for(i = 0;i < ret; i++)
53a5960a
PB		 10739 target_grouplist[i] = tswap32(grouplist[i]);
10740 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 10741 }
10742 }
72eb7ea8 10743 return ret;
a315a145
FB		 10744#endif
10745#ifdef TARGET_NR_setgroups32
31e31b8a 10746 case TARGET_NR_setgroups32:
99c475ab
FB		 10747 {
10748 int gidsetsize = arg1;
53a5960a 10749 uint32_t *target_grouplist;
99c475ab
FB		 10750 gid_t *grouplist;
10751 int i;
3b46e624 10752
99c475ab 10753 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 10754 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
10755 if (!target_grouplist) {
259841c1 10756 return -TARGET_EFAULT;
579a97f7 10757 }
99c475ab 10758 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 10759 grouplist[i] = tswap32(target_grouplist[i]);
10760 unlock_user(target_grouplist, arg2, 0);
72eb7ea8 10761 return get_errno(setgroups(gidsetsize, grouplist));
99c475ab 10762 }
a315a145
FB		 10763#endif
10764#ifdef TARGET_NR_fchown32
31e31b8a 10765 case TARGET_NR_fchown32:
72eb7ea8 10766 return get_errno(fchown(arg1, arg2, arg3));
a315a145
FB		 10767#endif
10768#ifdef TARGET_NR_setresuid32
31e31b8a 10769 case TARGET_NR_setresuid32:
72eb7ea8 10770 return get_errno(sys_setresuid(arg1, arg2, arg3));
a315a145
FB		 10771#endif
10772#ifdef TARGET_NR_getresuid32
31e31b8a 10773 case TARGET_NR_getresuid32:
b03c60f3 10774 {
53a5960a 10775 uid_t ruid, euid, suid;
b03c60f3
FB		 10776 ret = get_errno(getresuid(&ruid, &euid, &suid));
10777 if (!is_error(ret)) {
2f619698
FB		 10778 if (put_user_u32(ruid, arg1)
10779 || put_user_u32(euid, arg2)
10780 || put_user_u32(suid, arg3))
2852aafd 10781 return -TARGET_EFAULT;
b03c60f3
FB		 10782 }
10783 }
72eb7ea8 10784 return ret;
a315a145
FB		 10785#endif
10786#ifdef TARGET_NR_setresgid32
31e31b8a 10787 case TARGET_NR_setresgid32:
72eb7ea8 10788 return get_errno(sys_setresgid(arg1, arg2, arg3));
a315a145
FB		 10789#endif
10790#ifdef TARGET_NR_getresgid32
31e31b8a 10791 case TARGET_NR_getresgid32:
b03c60f3 10792 {
53a5960a 10793 gid_t rgid, egid, sgid;
b03c60f3
FB		 10794 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10795 if (!is_error(ret)) {
2f619698
FB		 10796 if (put_user_u32(rgid, arg1)
10797 || put_user_u32(egid, arg2)
10798 || put_user_u32(sgid, arg3))
2852aafd 10799 return -TARGET_EFAULT;
b03c60f3
FB		 10800 }
10801 }
72eb7ea8 10802 return ret;
a315a145
FB		 10803#endif
10804#ifdef TARGET_NR_chown32
31e31b8a 10805 case TARGET_NR_chown32:
579a97f7 10806 if (!(p = lock_user_string(arg1)))
2852aafd 10807 return -TARGET_EFAULT;
53a5960a
PB		 10808 ret = get_errno(chown(p, arg2, arg3));
10809 unlock_user(p, arg1, 0);
72eb7ea8 10810 return ret;
a315a145
FB		 10811#endif
10812#ifdef TARGET_NR_setuid32
31e31b8a 10813 case TARGET_NR_setuid32:
72eb7ea8 10814 return get_errno(sys_setuid(arg1));
a315a145
FB		 10815#endif
10816#ifdef TARGET_NR_setgid32
31e31b8a 10817 case TARGET_NR_setgid32:
72eb7ea8 10818 return get_errno(sys_setgid(arg1));
a315a145
FB		 10819#endif
10820#ifdef TARGET_NR_setfsuid32
31e31b8a 10821 case TARGET_NR_setfsuid32:
72eb7ea8 10822 return get_errno(setfsuid(arg1));
a315a145
FB		 10823#endif
10824#ifdef TARGET_NR_setfsgid32
31e31b8a 10825 case TARGET_NR_setfsgid32:
72eb7ea8 10826 return get_errno(setfsgid(arg1));
a315a145 10827#endif
ffa65c3b 10828#ifdef TARGET_NR_mincore
31e31b8a 10829 case TARGET_NR_mincore:
04bb9ace 10830 {
259841c1 10831 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
98a3331a 10832 if (!a) {
259841c1 10833 return -TARGET_ENOMEM;
98a3331a 10834 }
98a3331a
FSM		 10835 p = lock_user_string(arg3);
10836 if (!p) {
259841c1
RH		 10837 ret = -TARGET_EFAULT;
10838 } else {
10839 ret = get_errno(mincore(a, arg2, p));
10840 unlock_user(p, arg3, ret);
98a3331a 10841 }
04bb9ace
AJ		 10842 unlock_user(a, arg1, 0);
10843 }
72eb7ea8 10844 return ret;
ffa65c3b 10845#endif
408321b6
AJ		 10846#ifdef TARGET_NR_arm_fadvise64_64
10847 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 10848 /* arm_fadvise64_64 looks like fadvise64_64 but
10849 * with different argument order: fd, advice, offset, len
10850 * rather than the usual fd, offset, len, advice.
10851 * Note that offset and len are both 64-bit so appear as
10852 * pairs of 32-bit registers.
10853 */
10854 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
10855 target_offset64(arg5, arg6), arg2);
72eb7ea8 10856 return -host_to_target_errno(ret);
408321b6 10857#endif
badd3cd8
PM		 10858
10859#if TARGET_ABI_BITS == 32
10860
10861#ifdef TARGET_NR_fadvise64_64
10862 case TARGET_NR_fadvise64_64:
64a563dd 10863#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
43046b5a
LV		 10864 /* 6 args: fd, advice, offset (high, low), len (high, low) */
10865 ret = arg2;
10866 arg2 = arg3;
10867 arg3 = arg4;
10868 arg4 = arg5;
10869 arg5 = arg6;
10870 arg6 = ret;
10871#else
badd3cd8 10872 /* 6 args: fd, offset (high, low), len (high, low), advice */
8bf8e9df 10873 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10874 /* offset is in (3,4), len in (5,6) and advice in 7 */
10875 arg2 = arg3;
10876 arg3 = arg4;
10877 arg4 = arg5;
10878 arg5 = arg6;
10879 arg6 = arg7;
10880 }
43046b5a 10881#endif
72eb7ea8
RH		 10882 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
10883 target_offset64(arg4, arg5), arg6);
10884 return -host_to_target_errno(ret);
badd3cd8
PM		 10885#endif
10886
10887#ifdef TARGET_NR_fadvise64
10888 case TARGET_NR_fadvise64:
10889 /* 5 args: fd, offset (high, low), len, advice */
8bf8e9df 10890 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10891 /* offset is in (3,4), len in 5 and advice in 6 */
10892 arg2 = arg3;
10893 arg3 = arg4;
10894 arg4 = arg5;
10895 arg5 = arg6;
10896 }
72eb7ea8
RH		 10897 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
10898 return -host_to_target_errno(ret);
408321b6 10899#endif
badd3cd8
PM		 10900
10901#else /* not a 32-bit ABI */
e0156a9d 10902#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 10903#ifdef TARGET_NR_fadvise64_64
10904 case TARGET_NR_fadvise64_64:
10905#endif
e72d2cc7
UH		 10906#ifdef TARGET_NR_fadvise64
10907 case TARGET_NR_fadvise64:
10908#endif
10909#ifdef TARGET_S390X
10910 switch (arg4) {
10911 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
10912 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
10913 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10914 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10915 default: break;
10916 }
10917#endif
72eb7ea8 10918 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
408321b6 10919#endif
badd3cd8
PM		 10920#endif /* end of 64-bit ABI fadvise handling */
10921
ffa65c3b 10922#ifdef TARGET_NR_madvise
31e31b8a 10923 case TARGET_NR_madvise:
24836689 10924 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 10925 turns private file-backed mappings into anonymous mappings.
24836689
PB		 10926 This will break MADV_DONTNEED.
10927 This is a hint, so ignoring and returning success is ok. */
72eb7ea8 10928 return 0;
ffa65c3b 10929#endif
992f48a0 10930#if TARGET_ABI_BITS == 32
31e31b8a 10931 case TARGET_NR_fcntl64:
77e4672d 10932 {
b1e341eb 10933 int cmd;
77e4672d 10934 struct flock64 fl;
213d3e9e
PM		 10935 from_flock64_fn *copyfrom = copy_from_user_flock64;
10936 to_flock64_fn *copyto = copy_to_user_flock64;
10937
ce4defa0 10938#ifdef TARGET_ARM
7f254c5c
LV		 10939 if (!((CPUARMState *)cpu_env)->eabi) {
10940 copyfrom = copy_from_user_oabi_flock64;
10941 copyto = copy_to_user_oabi_flock64;
213d3e9e 10942 }
ce4defa0 10943#endif
77e4672d 10944
5f106811 10945 cmd = target_to_host_fcntl_cmd(arg2);
31b63193 10946 if (cmd == -TARGET_EINVAL) {
72eb7ea8 10947 return cmd;
31b63193 10948 }
b1e341eb 10949
60cd49d5 10950 switch(arg2) {
b1e341eb 10951 case TARGET_F_GETLK64:
213d3e9e
PM		 10952 ret = copyfrom(&fl, arg3);
10953 if (ret) {
10954 break;
5813427b 10955 }
af8ab2bf 10956 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
213d3e9e
PM		 10957 if (ret == 0) {
10958 ret = copyto(arg3, &fl);
10959 }
77e4672d
FB		 10960 break;
10961
b1e341eb
TS		 10962 case TARGET_F_SETLK64:
10963 case TARGET_F_SETLKW64:
213d3e9e
PM		 10964 ret = copyfrom(&fl, arg3);
10965 if (ret) {
10966 break;
ce4defa0 10967 }
435da5e7 10968 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
77e4672d 10969 break;
60cd49d5 10970 default:
5f106811 10971 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 10972 break;
10973 }
72eb7ea8 10974 return ret;
77e4672d 10975 }
60cd49d5 10976#endif
7d600c80
TS		 10977#ifdef TARGET_NR_cacheflush
10978 case TARGET_NR_cacheflush:
10979 /* self-modifying code is handled automatically, so nothing needed */
72eb7ea8 10980 return 0;
7d600c80 10981#endif
c573ff67
FB		 10982#ifdef TARGET_NR_getpagesize
10983 case TARGET_NR_getpagesize:
72eb7ea8 10984 return TARGET_PAGE_SIZE;
ebc05488 10985#endif
31e31b8a 10986 case TARGET_NR_gettid:
71ba74f6 10987 return get_errno(sys_gettid());
e5febef5 10988#ifdef TARGET_NR_readahead
31e31b8a 10989 case TARGET_NR_readahead:
2054ac9b 10990#if TARGET_ABI_BITS == 32
8bf8e9df 10991 if (regpairs_aligned(cpu_env, num)) {
2054ac9b
AJ		 10992 arg2 = arg3;
10993 arg3 = arg4;
10994 arg4 = arg5;
10995 }
77c6850f 10996 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
2054ac9b
AJ		 10997#else
10998 ret = get_errno(readahead(arg1, arg2, arg3));
10999#endif
72eb7ea8 11000 return ret;
e5febef5 11001#endif
a790ae38 11002#ifdef CONFIG_ATTR
ebc05488 11003#ifdef TARGET_NR_setxattr
31e31b8a
FB		 11004 case TARGET_NR_listxattr:
11005 case TARGET_NR_llistxattr:
fb5590f7
PM		 11006 {
11007 void *p, *b = 0;
11008 if (arg2) {
11009 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
11010 if (!b) {
72eb7ea8 11011 return -TARGET_EFAULT;
fb5590f7
PM		 11012 }
11013 }
11014 p = lock_user_string(arg1);
11015 if (p) {
11016 if (num == TARGET_NR_listxattr) {
11017 ret = get_errno(listxattr(p, b, arg3));
11018 } else {
11019 ret = get_errno(llistxattr(p, b, arg3));
11020 }
11021 } else {
11022 ret = -TARGET_EFAULT;
11023 }
11024 unlock_user(p, arg1, 0);
11025 unlock_user(b, arg2, arg3);
72eb7ea8 11026 return ret;
fb5590f7 11027 }
31e31b8a 11028 case TARGET_NR_flistxattr:
fb5590f7
PM		 11029 {
11030 void *b = 0;
11031 if (arg2) {
11032 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
11033 if (!b) {
72eb7ea8 11034 return -TARGET_EFAULT;
fb5590f7
PM		 11035 }
11036 }
11037 ret = get_errno(flistxattr(arg1, b, arg3));
11038 unlock_user(b, arg2, arg3);
72eb7ea8 11039 return ret;
fb5590f7 11040 }
a790ae38 11041 case TARGET_NR_setxattr:
30297b55 11042 case TARGET_NR_lsetxattr:
a790ae38 11043 {
e3c33ec6
PM		 11044 void *p, *n, *v = 0;
11045 if (arg3) {
11046 v = lock_user(VERIFY_READ, arg3, arg4, 1);
11047 if (!v) {
72eb7ea8 11048 return -TARGET_EFAULT;
e3c33ec6
PM		 11049 }
11050 }
a790ae38
ACH		 11051 p = lock_user_string(arg1);
11052 n = lock_user_string(arg2);
e3c33ec6 11053 if (p && n) {
30297b55
PM		 11054 if (num == TARGET_NR_setxattr) {
11055 ret = get_errno(setxattr(p, n, v, arg4, arg5));
11056 } else {
11057 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
11058 }
a790ae38
ACH		 11059 } else {
11060 ret = -TARGET_EFAULT;
11061 }
11062 unlock_user(p, arg1, 0);
11063 unlock_user(n, arg2, 0);
11064 unlock_user(v, arg3, 0);
11065 }
72eb7ea8 11066 return ret;
30297b55
PM		 11067 case TARGET_NR_fsetxattr:
11068 {
11069 void *n, *v = 0;
11070 if (arg3) {
11071 v = lock_user(VERIFY_READ, arg3, arg4, 1);
11072 if (!v) {
72eb7ea8 11073 return -TARGET_EFAULT;
30297b55
PM		 11074 }
11075 }
11076 n = lock_user_string(arg2);
11077 if (n) {
11078 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
11079 } else {
11080 ret = -TARGET_EFAULT;
11081 }
11082 unlock_user(n, arg2, 0);
11083 unlock_user(v, arg3, 0);
11084 }
72eb7ea8 11085 return ret;
a790ae38 11086 case TARGET_NR_getxattr:
30297b55 11087 case TARGET_NR_lgetxattr:
a790ae38 11088 {
e3c33ec6
PM		 11089 void *p, *n, *v = 0;
11090 if (arg3) {
11091 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
11092 if (!v) {
72eb7ea8 11093 return -TARGET_EFAULT;
e3c33ec6
PM		 11094 }
11095 }
a790ae38
ACH		 11096 p = lock_user_string(arg1);
11097 n = lock_user_string(arg2);
e3c33ec6 11098 if (p && n) {
30297b55
PM		 11099 if (num == TARGET_NR_getxattr) {
11100 ret = get_errno(getxattr(p, n, v, arg4));
11101 } else {
11102 ret = get_errno(lgetxattr(p, n, v, arg4));
11103 }
a790ae38
ACH		 11104 } else {
11105 ret = -TARGET_EFAULT;
11106 }
11107 unlock_user(p, arg1, 0);
11108 unlock_user(n, arg2, 0);
11109 unlock_user(v, arg3, arg4);
11110 }
72eb7ea8 11111 return ret;
30297b55
PM		 11112 case TARGET_NR_fgetxattr:
11113 {
11114 void *n, *v = 0;
11115 if (arg3) {
11116 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
11117 if (!v) {
72eb7ea8 11118 return -TARGET_EFAULT;
30297b55
PM		 11119 }
11120 }
11121 n = lock_user_string(arg2);
11122 if (n) {
11123 ret = get_errno(fgetxattr(arg1, n, v, arg4));
11124 } else {
11125 ret = -TARGET_EFAULT;
11126 }
11127 unlock_user(n, arg2, 0);
11128 unlock_user(v, arg3, arg4);
11129 }
72eb7ea8 11130 return ret;
a790ae38 11131 case TARGET_NR_removexattr:
30297b55 11132 case TARGET_NR_lremovexattr:
a790ae38
ACH		 11133 {
11134 void *p, *n;
11135 p = lock_user_string(arg1);
11136 n = lock_user_string(arg2);
11137 if (p && n) {
30297b55
PM		 11138 if (num == TARGET_NR_removexattr) {
11139 ret = get_errno(removexattr(p, n));
11140 } else {
11141 ret = get_errno(lremovexattr(p, n));
11142 }
a790ae38
ACH		 11143 } else {
11144 ret = -TARGET_EFAULT;
11145 }
11146 unlock_user(p, arg1, 0);
11147 unlock_user(n, arg2, 0);
11148 }
72eb7ea8 11149 return ret;
30297b55
PM		 11150 case TARGET_NR_fremovexattr:
11151 {
11152 void *n;
11153 n = lock_user_string(arg2);
11154 if (n) {
11155 ret = get_errno(fremovexattr(arg1, n));
11156 } else {
11157 ret = -TARGET_EFAULT;
11158 }
11159 unlock_user(n, arg2, 0);
11160 }
72eb7ea8 11161 return ret;
ebc05488 11162#endif
a790ae38 11163#endif /* CONFIG_ATTR */
ebc05488 11164#ifdef TARGET_NR_set_thread_area
5cd4393b 11165 case TARGET_NR_set_thread_area:
8d18e893 11166#if defined(TARGET_MIPS)
d279279e 11167 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
72eb7ea8 11168 return 0;
ef96779b
EI		 11169#elif defined(TARGET_CRIS)
11170 if (arg1 & 0xff)
11171 ret = -TARGET_EINVAL;
11172 else {
11173 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
11174 ret = 0;
11175 }
72eb7ea8 11176 return ret;
8d18e893 11177#elif defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 11178 return do_set_thread_area(cpu_env, arg1);
1ccd9374
PM		 11179#elif defined(TARGET_M68K)
11180 {
0429a971 11181 TaskState *ts = cpu->opaque;
1ccd9374 11182 ts->tp_value = arg1;
72eb7ea8 11183 return 0;
1ccd9374 11184 }
6f5b89a0 11185#else
10f45d98 11186 return -TARGET_ENOSYS;
6f5b89a0
TS		 11187#endif
11188#endif
11189#ifdef TARGET_NR_get_thread_area
5cd4393b 11190 case TARGET_NR_get_thread_area:
8d18e893 11191#if defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 11192 return do_get_thread_area(cpu_env, arg1);
1ccd9374
PM		 11193#elif defined(TARGET_M68K)
11194 {
0429a971 11195 TaskState *ts = cpu->opaque;
72eb7ea8 11196 return ts->tp_value;
1ccd9374 11197 }
8d18e893 11198#else
10f45d98 11199 return -TARGET_ENOSYS;
48dc41eb 11200#endif
8d18e893 11201#endif
48dc41eb
FB		 11202#ifdef TARGET_NR_getdomainname
11203 case TARGET_NR_getdomainname:
10f45d98 11204 return -TARGET_ENOSYS;
ebc05488 11205#endif
6f5b89a0 11206
12e3340c
MF		 11207#ifdef TARGET_NR_clock_settime
11208 case TARGET_NR_clock_settime:
11209 {
11210 struct timespec ts;
11211
11212 ret = target_to_host_timespec(&ts, arg2);
11213 if (!is_error(ret)) {
11214 ret = get_errno(clock_settime(arg1, &ts));
11215 }
72eb7ea8 11216 return ret;
12e3340c
MF		 11217 }
11218#endif
b5906f95
TS		 11219#ifdef TARGET_NR_clock_gettime
11220 case TARGET_NR_clock_gettime:
11221 {
11222 struct timespec ts;
11223 ret = get_errno(clock_gettime(arg1, &ts));
11224 if (!is_error(ret)) {
b9f9908e 11225 ret = host_to_target_timespec(arg2, &ts);
b5906f95 11226 }
72eb7ea8 11227 return ret;
b5906f95
TS		 11228 }
11229#endif
11230#ifdef TARGET_NR_clock_getres
11231 case TARGET_NR_clock_getres:
11232 {
11233 struct timespec ts;
11234 ret = get_errno(clock_getres(arg1, &ts));
11235 if (!is_error(ret)) {
11236 host_to_target_timespec(arg2, &ts);
11237 }
72eb7ea8 11238 return ret;
b5906f95
TS		 11239 }
11240#endif
63d7651b
PB		 11241#ifdef TARGET_NR_clock_nanosleep
11242 case TARGET_NR_clock_nanosleep:
11243 {
11244 struct timespec ts;
11245 target_to_host_timespec(&ts, arg3);
9e518226
PM		 11246 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
11247 &ts, arg4 ? &ts : NULL));
63d7651b
PB		 11248 if (arg4)
11249 host_to_target_timespec(arg4, &ts);
8fbe8fdf
TM		 11250
11251#if defined(TARGET_PPC)
11252 /* clock_nanosleep is odd in that it returns positive errno values.
11253 * On PPC, CR0 bit 3 should be set in such a situation. */
9e518226 11254 if (ret && ret != -TARGET_ERESTARTSYS) {
8fbe8fdf
TM		 11255 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
11256 }
11257#endif
72eb7ea8 11258 return ret;
63d7651b
PB		 11259 }
11260#endif
b5906f95 11261
6f5b89a0
TS		 11262#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
11263 case TARGET_NR_set_tid_address:
72eb7ea8 11264 return get_errno(set_tid_address((int *)g2h(arg1)));
6f5b89a0
TS		 11265#endif
11266
4cae1d16 11267 case TARGET_NR_tkill:
72eb7ea8 11268 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 11269
71455574 11270 case TARGET_NR_tgkill:
72eb7ea8
RH		 11271 return get_errno(safe_tgkill((int)arg1, (int)arg2,
11272 target_to_host_signal(arg3)));
71455574 11273
4f2b1fe8
TS		 11274#ifdef TARGET_NR_set_robust_list
11275 case TARGET_NR_set_robust_list:
e9a970a8
PM		 11276 case TARGET_NR_get_robust_list:
11277 /* The ABI for supporting robust futexes has userspace pass
11278 * the kernel a pointer to a linked list which is updated by
11279 * userspace after the syscall; the list is walked by the kernel
11280 * when the thread exits. Since the linked list in QEMU guest
11281 * memory isn't a valid linked list for the host and we have
11282 * no way to reliably intercept the thread-death event, we can't
11283 * support these. Silently return ENOSYS so that guest userspace
11284 * falls back to a non-robust futex implementation (which should
11285 * be OK except in the corner case of the guest crashing while
11286 * holding a mutex that is shared with another process via
11287 * shared memory).
11288 */
10f45d98 11289 return -TARGET_ENOSYS;
4f2b1fe8
TS		 11290#endif
11291
1acae9f2 11292#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 11293 case TARGET_NR_utimensat:
11294 {
ebc996f3
RV		 11295 struct timespec *tsp, ts[2];
11296 if (!arg3) {
11297 tsp = NULL;
11298 } else {
11299 target_to_host_timespec(ts, arg3);
11300 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
11301 tsp = ts;
11302 }
9007f0ef 11303 if (!arg2)
ebc996f3 11304 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 11305 else {
579a97f7 11306 if (!(p = lock_user_string(arg2))) {
259841c1 11307 return -TARGET_EFAULT;
579a97f7 11308 }
ebc996f3 11309 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 11310 unlock_user(p, arg2, 0);
9007f0ef
TS		 11311 }
11312 }
72eb7ea8 11313 return ret;
9007f0ef 11314#endif
bd0c5661 11315 case TARGET_NR_futex:
72eb7ea8 11316 return do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
dbfe4c36 11317#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 11318 case TARGET_NR_inotify_init:
11319 ret = get_errno(sys_inotify_init());
b929f7e5
PMD		 11320 if (ret >= 0) {
11321 fd_trans_register(ret, &target_inotify_trans);
11322 }
72eb7ea8 11323 return ret;
39b59763 11324#endif
a1606b0b 11325#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 11326#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
11327 case TARGET_NR_inotify_init1:
fea243e9
LD		 11328 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
11329 fcntl_flags_tbl)));
b929f7e5
PMD		 11330 if (ret >= 0) {
11331 fd_trans_register(ret, &target_inotify_trans);
11332 }
72eb7ea8 11333 return ret;
c05c7a73 11334#endif
a1606b0b 11335#endif
dbfe4c36 11336#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 11337 case TARGET_NR_inotify_add_watch:
11338 p = lock_user_string(arg2);
11339 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
11340 unlock_user(p, arg2, 0);
72eb7ea8 11341 return ret;
39b59763 11342#endif
dbfe4c36 11343#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763 11344 case TARGET_NR_inotify_rm_watch:
72eb7ea8 11345 return get_errno(sys_inotify_rm_watch(arg1, arg2));
39b59763 11346#endif
9007f0ef 11347
8ec9cf89 11348#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 11349 case TARGET_NR_mq_open:
11350 {
c7536ab6 11351 struct mq_attr posix_mq_attr;
26400775 11352 struct mq_attr *pposix_mq_attr;
c7536ab6 11353 int host_flags;
24e1003a 11354
c7536ab6 11355 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
26400775
LD		 11356 pposix_mq_attr = NULL;
11357 if (arg4) {
11358 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
2852aafd 11359 return -TARGET_EFAULT;
26400775
LD		 11360 }
11361 pposix_mq_attr = &posix_mq_attr;
c7536ab6 11362 }
24e1003a 11363 p = lock_user_string(arg1 - 1);
c7536ab6 11364 if (!p) {
2852aafd 11365 return -TARGET_EFAULT;
b6ce1f6b 11366 }
26400775 11367 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
24e1003a
AJ		 11368 unlock_user (p, arg1, 0);
11369 }
72eb7ea8 11370 return ret;
24e1003a
AJ		 11371
11372 case TARGET_NR_mq_unlink:
11373 p = lock_user_string(arg1 - 1);
3211215e 11374 if (!p) {
72eb7ea8 11375 return -TARGET_EFAULT;
3211215e 11376 }
24e1003a
AJ		 11377 ret = get_errno(mq_unlink(p));
11378 unlock_user (p, arg1, 0);
72eb7ea8 11379 return ret;
24e1003a
AJ		 11380
11381 case TARGET_NR_mq_timedsend:
11382 {
11383 struct timespec ts;
11384
11385 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11386 if (arg5 != 0) {
11387 target_to_host_timespec(&ts, arg5);
d40ecd66 11388 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
24e1003a 11389 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11390 } else {
11391 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
24e1003a 11392 }
24e1003a
AJ		 11393 unlock_user (p, arg2, arg3);
11394 }
72eb7ea8 11395 return ret;
24e1003a
AJ		 11396
11397 case TARGET_NR_mq_timedreceive:
11398 {
11399 struct timespec ts;
11400 unsigned int prio;
11401
11402 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11403 if (arg5 != 0) {
11404 target_to_host_timespec(&ts, arg5);
d40ecd66
PM		 11405 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11406 &prio, &ts));
24e1003a 11407 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11408 } else {
11409 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11410 &prio, NULL));
24e1003a 11411 }
24e1003a
AJ		 11412 unlock_user (p, arg2, arg3);
11413 if (arg4 != 0)
11414 put_user_u32(prio, arg4);
11415 }
72eb7ea8 11416 return ret;
24e1003a
AJ		 11417
11418 /* Not implemented for now... */
11419/* case TARGET_NR_mq_notify: */
11420/* break; */
11421
11422 case TARGET_NR_mq_getsetattr:
11423 {
11424 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
11425 ret = 0;
24e1003a
AJ		 11426 if (arg2 != 0) {
11427 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
a23ea409
MF		 11428 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
11429 &posix_mq_attr_out));
11430 } else if (arg3 != 0) {
11431 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
11432 }
11433 if (ret == 0 && arg3 != 0) {
11434 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
24e1003a 11435 }
24e1003a 11436 }
72eb7ea8 11437 return ret;
24e1003a
AJ		 11438#endif
11439
3ce34dfb
VS		 11440#ifdef CONFIG_SPLICE
11441#ifdef TARGET_NR_tee
11442 case TARGET_NR_tee:
11443 {
11444 ret = get_errno(tee(arg1,arg2,arg3,arg4));
11445 }
72eb7ea8 11446 return ret;
3ce34dfb
VS		 11447#endif
11448#ifdef TARGET_NR_splice
11449 case TARGET_NR_splice:
11450 {
11451 loff_t loff_in, loff_out;
11452 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 11453 if (arg2) {
11454 if (get_user_u64(loff_in, arg2)) {
2852aafd 11455 return -TARGET_EFAULT;
17644b36 11456 }
3ce34dfb
VS		 11457 ploff_in = &loff_in;
11458 }
17644b36
AS		 11459 if (arg4) {
11460 if (get_user_u64(loff_out, arg4)) {
2852aafd 11461 return -TARGET_EFAULT;
17644b36 11462 }
3ce34dfb
VS		 11463 ploff_out = &loff_out;
11464 }
11465 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 11466 if (arg2) {
11467 if (put_user_u64(loff_in, arg2)) {
2852aafd 11468 return -TARGET_EFAULT;
17644b36
AS		 11469 }
11470 }
11471 if (arg4) {
11472 if (put_user_u64(loff_out, arg4)) {
2852aafd 11473 return -TARGET_EFAULT;
17644b36
AS		 11474 }
11475 }
3ce34dfb 11476 }
72eb7ea8 11477 return ret;
3ce34dfb
VS		 11478#endif
11479#ifdef TARGET_NR_vmsplice
11480 case TARGET_NR_vmsplice:
11481 {
f287b2c2
RH		 11482 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
11483 if (vec != NULL) {
11484 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
11485 unlock_iovec(vec, arg2, arg3, 0);
11486 } else {
11487 ret = -host_to_target_errno(errno);
11488 }
3ce34dfb 11489 }
72eb7ea8 11490 return ret;
3ce34dfb
VS		 11491#endif
11492#endif /* CONFIG_SPLICE */
c2882b96
RV		 11493#ifdef CONFIG_EVENTFD
11494#if defined(TARGET_NR_eventfd)
11495 case TARGET_NR_eventfd:
11496 ret = get_errno(eventfd(arg1, 0));
b929f7e5
PMD		 11497 if (ret >= 0) {
11498 fd_trans_register(ret, &target_eventfd_trans);
11499 }
72eb7ea8 11500 return ret;
c2882b96
RV		 11501#endif
11502#if defined(TARGET_NR_eventfd2)
11503 case TARGET_NR_eventfd2:
5947c697
PJ		 11504 {
11505 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
11506 if (arg2 & TARGET_O_NONBLOCK) {
11507 host_flags |= O_NONBLOCK;
11508 }
11509 if (arg2 & TARGET_O_CLOEXEC) {
11510 host_flags |= O_CLOEXEC;
11511 }
11512 ret = get_errno(eventfd(arg1, host_flags));
b929f7e5
PMD		 11513 if (ret >= 0) {
11514 fd_trans_register(ret, &target_eventfd_trans);
11515 }
72eb7ea8 11516 return ret;
5947c697 11517 }
c2882b96
RV		 11518#endif
11519#endif /* CONFIG_EVENTFD */
d0927938
UH		 11520#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
11521 case TARGET_NR_fallocate:
20249ae1
AG		 11522#if TARGET_ABI_BITS == 32
11523 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
11524 target_offset64(arg5, arg6)));
11525#else
d0927938 11526 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 11527#endif
72eb7ea8 11528 return ret;
c727f47d
PM		 11529#endif
11530#if defined(CONFIG_SYNC_FILE_RANGE)
11531#if defined(TARGET_NR_sync_file_range)
11532 case TARGET_NR_sync_file_range:
11533#if TARGET_ABI_BITS == 32
bfcedc57
RV		 11534#if defined(TARGET_MIPS)
11535 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11536 target_offset64(arg5, arg6), arg7));
11537#else
c727f47d
PM		 11538 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
11539 target_offset64(arg4, arg5), arg6));
bfcedc57 11540#endif /* !TARGET_MIPS */
c727f47d
PM		 11541#else
11542 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
11543#endif
72eb7ea8 11544 return ret;
c727f47d
PM		 11545#endif
11546#if defined(TARGET_NR_sync_file_range2)
11547 case TARGET_NR_sync_file_range2:
11548 /* This is like sync_file_range but the arguments are reordered */
11549#if TARGET_ABI_BITS == 32
11550 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11551 target_offset64(arg5, arg6), arg2));
11552#else
11553 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
11554#endif
72eb7ea8 11555 return ret;
c727f47d 11556#endif
3b6edd16 11557#endif
e36800c9
LV		 11558#if defined(TARGET_NR_signalfd4)
11559 case TARGET_NR_signalfd4:
72eb7ea8 11560 return do_signalfd4(arg1, arg2, arg4);
e36800c9
LV		 11561#endif
11562#if defined(TARGET_NR_signalfd)
11563 case TARGET_NR_signalfd:
72eb7ea8 11564 return do_signalfd4(arg1, arg2, 0);
e36800c9 11565#endif
3b6edd16
PM		 11566#if defined(CONFIG_EPOLL)
11567#if defined(TARGET_NR_epoll_create)
11568 case TARGET_NR_epoll_create:
72eb7ea8 11569 return get_errno(epoll_create(arg1));
3b6edd16
PM		 11570#endif
11571#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
11572 case TARGET_NR_epoll_create1:
72eb7ea8 11573 return get_errno(epoll_create1(arg1));
3b6edd16
PM		 11574#endif
11575#if defined(TARGET_NR_epoll_ctl)
11576 case TARGET_NR_epoll_ctl:
11577 {
11578 struct epoll_event ep;
11579 struct epoll_event *epp = 0;
11580 if (arg4) {
11581 struct target_epoll_event *target_ep;
11582 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
2852aafd 11583 return -TARGET_EFAULT;
3b6edd16
PM		 11584 }
11585 ep.events = tswap32(target_ep->events);
11586 /* The epoll_data_t union is just opaque data to the kernel,
11587 * so we transfer all 64 bits across and need not worry what
11588 * actual data type it is.
11589 */
11590 ep.data.u64 = tswap64(target_ep->data.u64);
11591 unlock_user_struct(target_ep, arg4, 0);
11592 epp = &ep;
11593 }
72eb7ea8 11594 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
3b6edd16
PM		 11595 }
11596#endif
11597
227f0214 11598#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11599#if defined(TARGET_NR_epoll_wait)
11600 case TARGET_NR_epoll_wait:
11601#endif
227f0214 11602#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11603 case TARGET_NR_epoll_pwait:
11604#endif
11605 {
11606 struct target_epoll_event *target_ep;
11607 struct epoll_event *ep;
11608 int epfd = arg1;
11609 int maxevents = arg3;
11610 int timeout = arg4;
11611
2ba7fae3 11612 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
72eb7ea8 11613 return -TARGET_EINVAL;
2ba7fae3
PM		 11614 }
11615
3b6edd16
PM		 11616 target_ep = lock_user(VERIFY_WRITE, arg2,
11617 maxevents * sizeof(struct target_epoll_event), 1);
11618 if (!target_ep) {
2852aafd 11619 return -TARGET_EFAULT;
3b6edd16
PM		 11620 }
11621
04c95f4d
PM		 11622 ep = g_try_new(struct epoll_event, maxevents);
11623 if (!ep) {
11624 unlock_user(target_ep, arg2, 0);
72eb7ea8 11625 return -TARGET_ENOMEM;
04c95f4d 11626 }
3b6edd16
PM		 11627
11628 switch (num) {
227f0214 11629#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11630 case TARGET_NR_epoll_pwait:
11631 {
11632 target_sigset_t *target_set;
11633 sigset_t _set, *set = &_set;
11634
11635 if (arg5) {
c815701e
PM		 11636 if (arg6 != sizeof(target_sigset_t)) {
11637 ret = -TARGET_EINVAL;
11638 break;
11639 }
11640
3b6edd16
PM		 11641 target_set = lock_user(VERIFY_READ, arg5,
11642 sizeof(target_sigset_t), 1);
11643 if (!target_set) {
04c95f4d
PM		 11644 ret = -TARGET_EFAULT;
11645 break;
3b6edd16
PM		 11646 }
11647 target_to_host_sigset(set, target_set);
11648 unlock_user(target_set, arg5, 0);
11649 } else {
11650 set = NULL;
11651 }
11652
227f0214
PM		 11653 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11654 set, SIGSET_T_SIZE));
3b6edd16
PM		 11655 break;
11656 }
11657#endif
11658#if defined(TARGET_NR_epoll_wait)
11659 case TARGET_NR_epoll_wait:
227f0214
PM		 11660 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11661 NULL, 0));
3b6edd16
PM		 11662 break;
11663#endif
11664 default:
11665 ret = -TARGET_ENOSYS;
11666 }
11667 if (!is_error(ret)) {
11668 int i;
11669 for (i = 0; i < ret; i++) {
11670 target_ep[i].events = tswap32(ep[i].events);
11671 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
11672 }
04c95f4d
PM		 11673 unlock_user(target_ep, arg2,
11674 ret * sizeof(struct target_epoll_event));
11675 } else {
11676 unlock_user(target_ep, arg2, 0);
3b6edd16 11677 }
04c95f4d 11678 g_free(ep);
72eb7ea8 11679 return ret;
3b6edd16
PM		 11680 }
11681#endif
163a05a8
PM		 11682#endif
11683#ifdef TARGET_NR_prlimit64
11684 case TARGET_NR_prlimit64:
11685 {
11686 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
11687 struct target_rlimit64 *target_rnew, *target_rold;
11688 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 11689 int resource = target_to_host_resource(arg2);
163a05a8
PM		 11690 if (arg3) {
11691 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
2852aafd 11692 return -TARGET_EFAULT;
163a05a8
PM		 11693 }
11694 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
11695 rnew.rlim_max = tswap64(target_rnew->rlim_max);
11696 unlock_user_struct(target_rnew, arg3, 0);
11697 rnewp = &rnew;
11698 }
11699
95018018 11700 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 11701 if (!is_error(ret) && arg4) {
11702 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
2852aafd 11703 return -TARGET_EFAULT;
163a05a8
PM		 11704 }
11705 target_rold->rlim_cur = tswap64(rold.rlim_cur);
11706 target_rold->rlim_max = tswap64(rold.rlim_max);
11707 unlock_user_struct(target_rold, arg4, 1);
11708 }
72eb7ea8 11709 return ret;
163a05a8 11710 }
3d21d29c
RH		 11711#endif
11712#ifdef TARGET_NR_gethostname
11713 case TARGET_NR_gethostname:
11714 {
11715 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
11716 if (name) {
11717 ret = get_errno(gethostname(name, arg2));
11718 unlock_user(name, arg1, arg2);
11719 } else {
11720 ret = -TARGET_EFAULT;
11721 }
72eb7ea8 11722 return ret;
3d21d29c 11723 }
89aaf1a6
RV		 11724#endif
11725#ifdef TARGET_NR_atomic_cmpxchg_32
11726 case TARGET_NR_atomic_cmpxchg_32:
11727 {
11728 /* should use start_exclusive from main.c */
11729 abi_ulong mem_value;
11730 if (get_user_u32(mem_value, arg6)) {
11731 target_siginfo_t info;
11732 info.si_signo = SIGSEGV;
11733 info.si_errno = 0;
11734 info.si_code = TARGET_SEGV_MAPERR;
11735 info._sifields._sigfault._addr = arg6;
9d2803f7
PM		 11736 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11737 QEMU_SI_FAULT, &info);
89aaf1a6
RV		 11738 ret = 0xdeadbeef;
11739
11740 }
11741 if (mem_value == arg2)
11742 put_user_u32(arg1, arg6);
72eb7ea8 11743 return mem_value;
89aaf1a6
RV		 11744 }
11745#endif
11746#ifdef TARGET_NR_atomic_barrier
11747 case TARGET_NR_atomic_barrier:
72eb7ea8
RH		 11748 /* Like the kernel implementation and the
11749 qemu arm barrier, no-op this? */
11750 return 0;
d0927938 11751#endif
f4f1e10a
ECL		 11752
11753#ifdef TARGET_NR_timer_create
11754 case TARGET_NR_timer_create:
11755 {
11756 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
11757
11758 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 11759
11760 int clkid = arg1;
11761 int timer_index = next_free_host_timer();
11762
11763 if (timer_index < 0) {
11764 ret = -TARGET_EAGAIN;
11765 } else {
11766 timer_t *phtimer = g_posix_timers + timer_index;
11767
11768 if (arg2) {
f4f1e10a 11769 phost_sevp = &host_sevp;
c065976f
PM		 11770 ret = target_to_host_sigevent(phost_sevp, arg2);
11771 if (ret != 0) {
72eb7ea8 11772 return ret;
c065976f 11773 }
f4f1e10a
ECL		 11774 }
11775
11776 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
11777 if (ret) {
11778 phtimer = NULL;
11779 } else {
aecc8861 11780 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
2852aafd 11781 return -TARGET_EFAULT;
f4f1e10a 11782 }
f4f1e10a
ECL		 11783 }
11784 }
72eb7ea8 11785 return ret;
f4f1e10a
ECL		 11786 }
11787#endif
11788
11789#ifdef TARGET_NR_timer_settime
11790 case TARGET_NR_timer_settime:
11791 {
11792 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
11793 * struct itimerspec * old_value */
aecc8861 11794 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11795
aecc8861
AG		 11796 if (timerid < 0) {
11797 ret = timerid;
11798 } else if (arg3 == 0) {
f4f1e10a
ECL		 11799 ret = -TARGET_EINVAL;
11800 } else {
e52a99f7 11801 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11802 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
11803
40c80b5e 11804 if (target_to_host_itimerspec(&hspec_new, arg3)) {
2852aafd 11805 return -TARGET_EFAULT;
40c80b5e 11806 }
f4f1e10a
ECL		 11807 ret = get_errno(
11808 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
40c80b5e 11809 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
2852aafd 11810 return -TARGET_EFAULT;
40c80b5e 11811 }
f4f1e10a 11812 }
72eb7ea8 11813 return ret;
f4f1e10a
ECL		 11814 }
11815#endif
11816
11817#ifdef TARGET_NR_timer_gettime
11818 case TARGET_NR_timer_gettime:
11819 {
11820 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 11821 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11822
aecc8861
AG		 11823 if (timerid < 0) {
11824 ret = timerid;
11825 } else if (!arg2) {
11826 ret = -TARGET_EFAULT;
f4f1e10a 11827 } else {
e52a99f7 11828 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11829 struct itimerspec hspec;
11830 ret = get_errno(timer_gettime(htimer, &hspec));
11831
11832 if (host_to_target_itimerspec(arg2, &hspec)) {
11833 ret = -TARGET_EFAULT;
11834 }
11835 }
72eb7ea8 11836 return ret;
f4f1e10a
ECL		 11837 }
11838#endif
11839
11840#ifdef TARGET_NR_timer_getoverrun
11841 case TARGET_NR_timer_getoverrun:
11842 {
11843 /* args: timer_t timerid */
aecc8861 11844 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11845
aecc8861
AG		 11846 if (timerid < 0) {
11847 ret = timerid;
f4f1e10a 11848 } else {
e52a99f7 11849 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11850 ret = get_errno(timer_getoverrun(htimer));
11851 }
72eb7ea8 11852 return ret;
f4f1e10a
ECL		 11853 }
11854#endif
11855
11856#ifdef TARGET_NR_timer_delete
11857 case TARGET_NR_timer_delete:
11858 {
11859 /* args: timer_t timerid */
aecc8861 11860 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11861
aecc8861
AG		 11862 if (timerid < 0) {
11863 ret = timerid;
f4f1e10a 11864 } else {
e52a99f7 11865 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 11866 ret = get_errno(timer_delete(htimer));
e52a99f7 11867 g_posix_timers[timerid] = 0;
f4f1e10a 11868 }
72eb7ea8 11869 return ret;
f4f1e10a
ECL		 11870 }
11871#endif
11872
51834341
RV		 11873#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11874 case TARGET_NR_timerfd_create:
72eb7ea8
RH		 11875 return get_errno(timerfd_create(arg1,
11876 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
51834341
RV		 11877#endif
11878
11879#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11880 case TARGET_NR_timerfd_gettime:
11881 {
11882 struct itimerspec its_curr;
11883
11884 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11885
11886 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
2852aafd 11887 return -TARGET_EFAULT;
51834341
RV		 11888 }
11889 }
72eb7ea8 11890 return ret;
51834341
RV		 11891#endif
11892
11893#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11894 case TARGET_NR_timerfd_settime:
11895 {
11896 struct itimerspec its_new, its_old, *p_new;
11897
11898 if (arg3) {
11899 if (target_to_host_itimerspec(&its_new, arg3)) {
2852aafd 11900 return -TARGET_EFAULT;
51834341
RV		 11901 }
11902 p_new = &its_new;
11903 } else {
11904 p_new = NULL;
11905 }
11906
11907 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11908
11909 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
2852aafd 11910 return -TARGET_EFAULT;
51834341
RV		 11911 }
11912 }
72eb7ea8 11913 return ret;
51834341
RV		 11914#endif
11915
ab31cda3
PB		 11916#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11917 case TARGET_NR_ioprio_get:
72eb7ea8 11918 return get_errno(ioprio_get(arg1, arg2));
ab31cda3
PB		 11919#endif
11920
11921#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11922 case TARGET_NR_ioprio_set:
72eb7ea8 11923 return get_errno(ioprio_set(arg1, arg2, arg3));
ab31cda3
PB		 11924#endif
11925
9af5c906
RV		 11926#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11927 case TARGET_NR_setns:
72eb7ea8 11928 return get_errno(setns(arg1, arg2));
9af5c906
RV		 11929#endif
11930#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11931 case TARGET_NR_unshare:
72eb7ea8 11932 return get_errno(unshare(arg1));
9af5c906 11933#endif
2f14788c
LV		 11934#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
11935 case TARGET_NR_kcmp:
72eb7ea8 11936 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
2f14788c 11937#endif
fa97e38e
RH		 11938#ifdef TARGET_NR_swapcontext
11939 case TARGET_NR_swapcontext:
11940 /* PowerPC specific. */
72eb7ea8 11941 return do_swapcontext(cpu_env, arg1, arg2, arg3);
fa97e38e 11942#endif
9bdfa4d2
SCW		 11943#ifdef TARGET_NR_memfd_create
11944 case TARGET_NR_memfd_create:
11945 p = lock_user_string(arg1);
11946 if (!p) {
11947 return -TARGET_EFAULT;
11948 }
11949 ret = get_errno(memfd_create(p, arg2));
11950 fd_trans_unregister(ret);
11951 unlock_user(p, arg1, 0);
11952 return ret;
11953#endif
9af5c906 11954
31e31b8a 11955 default:
122f9c83 11956 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
72eb7ea8 11957 return -TARGET_ENOSYS;
31e31b8a 11958 }
31e31b8a
FB		 11959 return ret;
11960}
dc1ce18b
RH		 11961
11962abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
11963 abi_long arg2, abi_long arg3, abi_long arg4,
11964 abi_long arg5, abi_long arg6, abi_long arg7,
11965 abi_long arg8)
11966{
29a0af61 11967 CPUState *cpu = env_cpu(cpu_env);
dc1ce18b
RH		 11968 abi_long ret;
11969
11970#ifdef DEBUG_ERESTARTSYS
11971 /* Debug-only code for exercising the syscall-restart code paths
11972 * in the per-architecture cpu main loops: restart every syscall
11973 * the guest makes once before letting it through.
11974 */
11975 {
11976 static bool flag;
11977 flag = !flag;
11978 if (flag) {
11979 return -TARGET_ERESTARTSYS;
11980 }
11981 }
11982#endif
11983
11984 trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
11985 arg5, arg6, arg7, arg8);
11986
11987 if (unlikely(do_strace)) {
11988 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
11989 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11990 arg5, arg6, arg7, arg8);
11991 print_syscall_ret(num, ret);
11992 } else {
11993 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11994 arg5, arg6, arg7, arg8);
11995 }
11996
11997 trace_guest_user_syscall_ret(cpu, num, ret);
11998 return ret;
11999}
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