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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"
31e31b8a
FB		 23#include <elf.h>
24#include <endian.h>
c56dc774 25#include <grp.h>
d08d3bb8
TS		 26#include <sys/ipc.h>
27#include <sys/msg.h>
31e31b8a 28#include <sys/wait.h>
31e31b8a 29#include <sys/mount.h>
586b0bef
JS		 30#include <sys/file.h>
31#include <sys/fsuid.h>
32#include <sys/personality.h>
39b9aae1 33#include <sys/prctl.h>
31e31b8a 34#include <sys/resource.h>
31e31b8a 35#include <sys/swap.h>
e0eb210e 36#include <linux/capability.h>
31e31b8a 37#include <sched.h>
19f59bce 38#include <sys/timex.h>
31e31b8a 39#include <sys/socket.h>
607175e0 40#include <sys/un.h>
31e31b8a 41#include <sys/uio.h>
0839f11c 42#include <poll.h>
32f36bce 43#include <sys/times.h>
8853f86e 44#include <sys/shm.h>
fa294816 45#include <sys/sem.h>
56c8f68f 46#include <sys/statfs.h>
ebc05488 47#include <utime.h>
a5448a7d 48#include <sys/sysinfo.h>
e36800c9 49#include <sys/signalfd.h>
72f03900 50//#include <sys/user.h>
8853f86e 51#include <netinet/ip.h>
7854b056 52#include <netinet/tcp.h>
86fcd946 53#include <linux/wireless.h>
920394db 54#include <linux/icmp.h>
ee1ac3a1
HD		 55#include <linux/icmpv6.h>
56#include <linux/errqueue.h>
d6d6d6fe 57#include <linux/random.h>
5a61cb60 58#include "qemu-common.h"
d80a1905
RV		 59#ifdef CONFIG_TIMERFD
60#include <sys/timerfd.h>
61#endif
9788c9ca 62#ifdef TARGET_GPROF
6d946cda
AJ		 63#include <sys/gmon.h>
64#endif
c2882b96
RV		 65#ifdef CONFIG_EVENTFD
66#include <sys/eventfd.h>
67#endif
3b6edd16
PM		 68#ifdef CONFIG_EPOLL
69#include <sys/epoll.h>
70#endif
a790ae38 71#ifdef CONFIG_ATTR
1de7afc9 72#include "qemu/xattr.h"
a790ae38 73#endif
a8fd1aba
PM		 74#ifdef CONFIG_SENDFILE
75#include <sys/sendfile.h>
76#endif
31e31b8a
FB		 77
78#define termios host_termios
79#define winsize host_winsize
80#define termio host_termio
04369ff2
FB		 81#define sgttyb host_sgttyb /* same as target */
82#define tchars host_tchars /* same as target */
83#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 84
85#include <linux/termios.h>
86#include <linux/unistd.h>
31e31b8a
FB		 87#include <linux/cdrom.h>
88#include <linux/hdreg.h>
89#include <linux/soundcard.h>
19b84f3c 90#include <linux/kd.h>
8fbd6b52 91#include <linux/mtio.h>
350d1779 92#include <linux/fs.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>
d7e4036e 109#include "linux_loop.h"
18cb0088 110#include "uname.h"
31e31b8a 111
3ef693a0 112#include "qemu.h"
f7e6a401 113#include "fd-trans.h"
31e31b8a 114
5ea2fc84
PM		 115#ifndef CLONE_IO
116#define CLONE_IO 0x80000000 /* Clone io context */
117#endif
118
119/* We can't directly call the host clone syscall, because this will
120 * badly confuse libc (breaking mutexes, for example). So we must
121 * divide clone flags into:
122 * * flag combinations that look like pthread_create()
123 * * flag combinations that look like fork()
124 * * flags we can implement within QEMU itself
125 * * flags we can't support and will return an error for
126 */
127/* For thread creation, all these flags must be present; for
128 * fork, none must be present.
129 */
130#define CLONE_THREAD_FLAGS \
131 (CLONE_VM | CLONE_FS | CLONE_FILES | \
132 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
133
134/* These flags are ignored:
135 * CLONE_DETACHED is now ignored by the kernel;
136 * CLONE_IO is just an optimisation hint to the I/O scheduler
137 */
138#define CLONE_IGNORED_FLAGS \
139 (CLONE_DETACHED | CLONE_IO)
140
141/* Flags for fork which we can implement within QEMU itself */
142#define CLONE_OPTIONAL_FORK_FLAGS \
143 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
144 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
145
146/* Flags for thread creation which we can implement within QEMU itself */
147#define CLONE_OPTIONAL_THREAD_FLAGS \
148 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
149 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
150
151#define CLONE_INVALID_FORK_FLAGS \
152 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
153
154#define CLONE_INVALID_THREAD_FLAGS \
155 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
156 CLONE_IGNORED_FLAGS))
157
158/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
159 * have almost all been allocated. We cannot support any of
160 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
161 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
162 * The checks against the invalid thread masks above will catch these.
163 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
164 */
30813cea 165
71a8f7fe
TB		 166/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
167 * once. This exercises the codepaths for restart.
168 */
169//#define DEBUG_ERESTARTSYS
31e31b8a 170
1a9353d2 171//#include <linux/msdos_fs.h>
6556a833
AJ		 172#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
173#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 174
70a194b9
FB		 175#undef _syscall0
176#undef _syscall1
177#undef _syscall2
178#undef _syscall3
179#undef _syscall4
180#undef _syscall5
83fcb515 181#undef _syscall6
70a194b9 182
83fcb515 183#define _syscall0(type,name) \
8fcd3692 184static type name (void) \
83fcb515
FB		 185{ \
186 return syscall(__NR_##name); \
187}
70a194b9 188
83fcb515 189#define _syscall1(type,name,type1,arg1) \
8fcd3692 190static type name (type1 arg1) \
83fcb515
FB		 191{ \
192 return syscall(__NR_##name, arg1); \
70a194b9
FB		 193}
194
83fcb515 195#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 196static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 197{ \
198 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 199}
200
83fcb515 201#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 202static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 203{ \
204 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 205}
206
83fcb515 207#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 208static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 209{ \
210 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 211}
212
83fcb515
FB		 213#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
214 type5,arg5) \
8fcd3692 215static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 216{ \
217 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 218}
219
83fcb515
FB		 220
221#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
222 type5,arg5,type6,arg6) \
8fcd3692
BS		 223static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
224 type6 arg6) \
83fcb515
FB		 225{ \
226 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 227}
83fcb515 228
70a194b9 229
31e31b8a 230#define __NR_sys_uname __NR_uname
72f03900 231#define __NR_sys_getcwd1 __NR_getcwd
72f03900 232#define __NR_sys_getdents __NR_getdents
dab2ed99 233#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 234#define __NR_sys_getpriority __NR_getpriority
66fb9763 235#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
cf8b8bfc 236#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
7494b0f9 237#define __NR_sys_syslog __NR_syslog
bd0c5661 238#define __NR_sys_futex __NR_futex
39b59763
AJ		 239#define __NR_sys_inotify_init __NR_inotify_init
240#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
241#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
31e31b8a 242
b1cef6d0 243#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
9af9eaaa
FB		 244#define __NR__llseek __NR_lseek
245#endif
246
a29e5ba2
JH		 247/* Newer kernel ports have llseek() instead of _llseek() */
248#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
249#define TARGET_NR__llseek TARGET_NR_llseek
250#endif
251
72f03900 252#ifdef __NR_gettid
31e31b8a 253_syscall0(int, gettid)
72f03900 254#else
0da46a6e
TS		 255/* This is a replacement for the host gettid() and must return a host
256 errno. */
72f03900
FB		 257static int gettid(void) {
258 return -ENOSYS;
259}
260#endif
2b3f64cb
PM		 261
262/* For the 64-bit guest on 32-bit host case we must emulate
263 * getdents using getdents64, because otherwise the host
264 * might hand us back more dirent records than we can fit
265 * into the guest buffer after structure format conversion.
266 * Otherwise we emulate getdents with getdents if the host has it.
267 */
268#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
269#define EMULATE_GETDENTS_WITH_GETDENTS
270#endif
271
272#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
3b3f24ad 273_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236 274#endif
2b3f64cb
PM		 275#if (defined(TARGET_NR_getdents) && \
276 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
3307e236 277 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 278_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
279#endif
d35b261c 280#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 281_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
282 loff_t *, res, uint, wh);
283#endif
c1a402a7 284_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
cf8b8bfc
MS		 285_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
286 siginfo_t *, uinfo)
3b3f24ad 287_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 288#ifdef __NR_exit_group
289_syscall1(int,exit_group,int,error_code)
290#endif
291#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
292_syscall1(int,set_tid_address,int *,tidptr)
293#endif
3b3f24ad
AJ		 294#if defined(TARGET_NR_futex) && defined(__NR_futex)
295_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
296 const struct timespec *,timeout,int *,uaddr2,int,val3)
297#endif
737de1d1
MF		 298#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
299_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
300 unsigned long *, user_mask_ptr);
301#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
302_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
303 unsigned long *, user_mask_ptr);
b827c3ed
ST		 304#define __NR_sys_getcpu __NR_getcpu
305_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
0f6b4d21
AG		 306_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
307 void *, arg);
e0eb210e
PM		 308_syscall2(int, capget, struct __user_cap_header_struct *, header,
309 struct __user_cap_data_struct *, data);
310_syscall2(int, capset, struct __user_cap_header_struct *, header,
311 struct __user_cap_data_struct *, data);
ab31cda3
PB		 312#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
313_syscall2(int, ioprio_get, int, which, int, who)
314#endif
315#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
316_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
317#endif
f894efd1
LV		 318#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
319_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
320#endif
3b3f24ad 321
2f14788c
LV		 322#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
323_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
324 unsigned long, idx1, unsigned long, idx2)
325#endif
326
3b3f24ad
AJ		 327static bitmask_transtbl fcntl_flags_tbl[] = {
328 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
329 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
330 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
331 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
332 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
333 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
334 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
335 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 336 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 337 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
338 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
339 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
340 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 341#if defined(O_DIRECT)
342 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 343#endif
344#if defined(O_NOATIME)
345 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
346#endif
347#if defined(O_CLOEXEC)
348 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
349#endif
350#if defined(O_PATH)
351 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
5f9cee46
RV		 352#endif
353#if defined(O_TMPFILE)
354 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
afc8763f
RH		 355#endif
356 /* Don't terminate the list prematurely on 64-bit host+guest. */
357#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
358 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 359#endif
360 { 0, 0, 0, 0 }
361};
362
3b3f24ad
AJ		 363static int sys_getcwd1(char *buf, size_t size)
364{
365 if (getcwd(buf, size) == NULL) {
366 /* getcwd() sets errno */
367 return (-1);
368 }
aaf4ad39 369 return strlen(buf)+1;
3b3f24ad
AJ		 370}
371
1acae9f2 372#ifdef TARGET_NR_utimensat
700fa58e 373#if defined(__NR_utimensat)
1acae9f2 374#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 375_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
376 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 377#else
378static int sys_utimensat(int dirfd, const char *pathname,
379 const struct timespec times[2], int flags)
380{
381 errno = ENOSYS;
382 return -1;
383}
9007f0ef 384#endif
1acae9f2 385#endif /* TARGET_NR_utimensat */
3b3f24ad 386
95d0307c
AS		 387#ifdef TARGET_NR_renameat2
388#if defined(__NR_renameat2)
389#define __NR_sys_renameat2 __NR_renameat2
390_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
391 const char *, new, unsigned int, flags)
392#else
393static int sys_renameat2(int oldfd, const char *old,
394 int newfd, const char *new, int flags)
395{
396 if (flags == 0) {
397 return renameat(oldfd, old, newfd, new);
398 }
399 errno = ENOSYS;
400 return -1;
401}
402#endif
403#endif /* TARGET_NR_renameat2 */
404
3b3f24ad 405#ifdef CONFIG_INOTIFY
8690e420 406#include <sys/inotify.h>
3b3f24ad 407
39b59763 408#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 409static int sys_inotify_init(void)
410{
411 return (inotify_init());
412}
39b59763
AJ		 413#endif
414#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 415static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
416{
417 return (inotify_add_watch(fd, pathname, mask));
418}
39b59763
AJ		 419#endif
420#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 421static int sys_inotify_rm_watch(int fd, int32_t wd)
422{
8690e420 423 return (inotify_rm_watch(fd, wd));
3b3f24ad 424}
bd0c5661 425#endif
c05c7a73
RV		 426#ifdef CONFIG_INOTIFY1
427#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
428static int sys_inotify_init1(int flags)
429{
430 return (inotify_init1(flags));
431}
432#endif
433#endif
3b3f24ad
AJ		 434#else
435/* Userspace can usually survive runtime without inotify */
436#undef TARGET_NR_inotify_init
c05c7a73 437#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 438#undef TARGET_NR_inotify_add_watch
439#undef TARGET_NR_inotify_rm_watch
440#endif /* CONFIG_INOTIFY */
441
163a05a8
PM		 442#if defined(TARGET_NR_prlimit64)
443#ifndef __NR_prlimit64
444# define __NR_prlimit64 -1
445#endif
446#define __NR_sys_prlimit64 __NR_prlimit64
447/* The glibc rlimit structure may not be that used by the underlying syscall */
448struct host_rlimit64 {
449 uint64_t rlim_cur;
450 uint64_t rlim_max;
451};
452_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
453 const struct host_rlimit64 *, new_limit,
454 struct host_rlimit64 *, old_limit)
455#endif
456
f4f1e10a
ECL		 457
458#if defined(TARGET_NR_timer_create)
459/* Maxiumum of 32 active POSIX timers allowed at any one time. */
460static timer_t g_posix_timers[32] = { 0, } ;
461
462static inline int next_free_host_timer(void)
463{
464 int k ;
465 /* FIXME: Does finding the next free slot require a lock? */
466 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
467 if (g_posix_timers[k] == 0) {
468 g_posix_timers[k] = (timer_t) 1;
469 return k;
470 }
471 }
472 return -1;
473}
474#endif
475
48e515d4 476/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
4a1def4e 477#ifdef TARGET_ARM
8bf8e9df
JC		 478static inline int regpairs_aligned(void *cpu_env, int num)
479{
48e515d4
RV		 480 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
481}
d7779acb 482#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
8bf8e9df 483static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
4a1def4e
AG		 484#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
485/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
486 * of registers which translates to the same as ARM/MIPS, because we start with
487 * r3 as arg1 */
8bf8e9df
JC		 488static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
489#elif defined(TARGET_SH4)
490/* SH4 doesn't align register pairs, except for p{read,write}64 */
491static inline int regpairs_aligned(void *cpu_env, int num)
492{
493 switch (num) {
494 case TARGET_NR_pread64:
495 case TARGET_NR_pwrite64:
496 return 1;
497
498 default:
499 return 0;
500 }
501}
ba7651fb
MF		 502#elif defined(TARGET_XTENSA)
503static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
48e515d4 504#else
8bf8e9df 505static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
48e515d4
RV		 506#endif
507
b92c47c1
TS		 508#define ERRNO_TABLE_SIZE 1200
509
510/* target_to_host_errno_table[] is initialized from
511 * host_to_target_errno_table[] in syscall_init(). */
512static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
513};
514
637947f1 515/*
fe8f096b 516 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 517 * minus the errnos that are not actually generic to all archs.
518 */
b92c47c1 519static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 520 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 521 [EIDRM] = TARGET_EIDRM,
522 [ECHRNG] = TARGET_ECHRNG,
523 [EL2NSYNC] = TARGET_EL2NSYNC,
524 [EL3HLT] = TARGET_EL3HLT,
525 [EL3RST] = TARGET_EL3RST,
526 [ELNRNG] = TARGET_ELNRNG,
527 [EUNATCH] = TARGET_EUNATCH,
528 [ENOCSI] = TARGET_ENOCSI,
529 [EL2HLT] = TARGET_EL2HLT,
530 [EDEADLK] = TARGET_EDEADLK,
531 [ENOLCK] = TARGET_ENOLCK,
532 [EBADE] = TARGET_EBADE,
533 [EBADR] = TARGET_EBADR,
534 [EXFULL] = TARGET_EXFULL,
535 [ENOANO] = TARGET_ENOANO,
536 [EBADRQC] = TARGET_EBADRQC,
537 [EBADSLT] = TARGET_EBADSLT,
538 [EBFONT] = TARGET_EBFONT,
539 [ENOSTR] = TARGET_ENOSTR,
540 [ENODATA] = TARGET_ENODATA,
541 [ETIME] = TARGET_ETIME,
542 [ENOSR] = TARGET_ENOSR,
543 [ENONET] = TARGET_ENONET,
544 [ENOPKG] = TARGET_ENOPKG,
545 [EREMOTE] = TARGET_EREMOTE,
546 [ENOLINK] = TARGET_ENOLINK,
547 [EADV] = TARGET_EADV,
548 [ESRMNT] = TARGET_ESRMNT,
549 [ECOMM] = TARGET_ECOMM,
550 [EPROTO] = TARGET_EPROTO,
551 [EDOTDOT] = TARGET_EDOTDOT,
552 [EMULTIHOP] = TARGET_EMULTIHOP,
553 [EBADMSG] = TARGET_EBADMSG,
554 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
555 [EOVERFLOW] = TARGET_EOVERFLOW,
556 [ENOTUNIQ] = TARGET_ENOTUNIQ,
557 [EBADFD] = TARGET_EBADFD,
558 [EREMCHG] = TARGET_EREMCHG,
559 [ELIBACC] = TARGET_ELIBACC,
560 [ELIBBAD] = TARGET_ELIBBAD,
561 [ELIBSCN] = TARGET_ELIBSCN,
562 [ELIBMAX] = TARGET_ELIBMAX,
563 [ELIBEXEC] = TARGET_ELIBEXEC,
564 [EILSEQ] = TARGET_EILSEQ,
565 [ENOSYS] = TARGET_ENOSYS,
566 [ELOOP] = TARGET_ELOOP,
567 [ERESTART] = TARGET_ERESTART,
568 [ESTRPIPE] = TARGET_ESTRPIPE,
569 [ENOTEMPTY] = TARGET_ENOTEMPTY,
570 [EUSERS] = TARGET_EUSERS,
571 [ENOTSOCK] = TARGET_ENOTSOCK,
572 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
573 [EMSGSIZE] = TARGET_EMSGSIZE,
574 [EPROTOTYPE] = TARGET_EPROTOTYPE,
575 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
576 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
577 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
578 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
579 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
580 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
581 [EADDRINUSE] = TARGET_EADDRINUSE,
582 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
583 [ENETDOWN] = TARGET_ENETDOWN,
584 [ENETUNREACH] = TARGET_ENETUNREACH,
585 [ENETRESET] = TARGET_ENETRESET,
586 [ECONNABORTED] = TARGET_ECONNABORTED,
587 [ECONNRESET] = TARGET_ECONNRESET,
588 [ENOBUFS] = TARGET_ENOBUFS,
589 [EISCONN] = TARGET_EISCONN,
590 [ENOTCONN] = TARGET_ENOTCONN,
591 [EUCLEAN] = TARGET_EUCLEAN,
592 [ENOTNAM] = TARGET_ENOTNAM,
593 [ENAVAIL] = TARGET_ENAVAIL,
594 [EISNAM] = TARGET_EISNAM,
595 [EREMOTEIO] = TARGET_EREMOTEIO,
0444a3b7 596 [EDQUOT] = TARGET_EDQUOT,
637947f1
TS		 597 [ESHUTDOWN] = TARGET_ESHUTDOWN,
598 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
599 [ETIMEDOUT] = TARGET_ETIMEDOUT,
600 [ECONNREFUSED] = TARGET_ECONNREFUSED,
601 [EHOSTDOWN] = TARGET_EHOSTDOWN,
602 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
603 [EALREADY] = TARGET_EALREADY,
604 [EINPROGRESS] = TARGET_EINPROGRESS,
605 [ESTALE] = TARGET_ESTALE,
606 [ECANCELED] = TARGET_ECANCELED,
607 [ENOMEDIUM] = TARGET_ENOMEDIUM,
608 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 609#ifdef ENOKEY
637947f1 610 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 611#endif
612#ifdef EKEYEXPIRED
637947f1 613 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 614#endif
615#ifdef EKEYREVOKED
637947f1 616 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 617#endif
618#ifdef EKEYREJECTED
637947f1 619 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 620#endif
621#ifdef EOWNERDEAD
637947f1 622 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 623#endif
624#ifdef ENOTRECOVERABLE
637947f1 625 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 626#endif
da39db63
AM		 627#ifdef ENOMSG
628 [ENOMSG] = TARGET_ENOMSG,
629#endif
fe8ed7d5
RH		 630#ifdef ERKFILL
631 [ERFKILL] = TARGET_ERFKILL,
632#endif
633#ifdef EHWPOISON
634 [EHWPOISON] = TARGET_EHWPOISON,
635#endif
b92c47c1 636};
637947f1
TS		 637
638static inline int host_to_target_errno(int err)
639{
2466119c
TB		 640 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
641 host_to_target_errno_table[err]) {
637947f1 642 return host_to_target_errno_table[err];
2466119c 643 }
637947f1
TS		 644 return err;
645}
646
b92c47c1
TS		 647static inline int target_to_host_errno(int err)
648{
2466119c
TB		 649 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
650 target_to_host_errno_table[err]) {
b92c47c1 651 return target_to_host_errno_table[err];
2466119c 652 }
b92c47c1
TS		 653 return err;
654}
655
992f48a0 656static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 657{
658 if (ret == -1)
637947f1 659 return -host_to_target_errno(errno);
31e31b8a
FB		 660 else
661 return ret;
662}
663
7dcdaeaf 664const char *target_strerror(int err)
b92c47c1 665{
da2a34f7
PM		 666 if (err == TARGET_ERESTARTSYS) {
667 return "To be restarted";
668 }
669 if (err == TARGET_QEMU_ESIGRETURN) {
670 return "Successful exit from sigreturn";
671 }
672
962b289e
AG		 673 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
674 return NULL;
675 }
b92c47c1
TS		 676 return strerror(target_to_host_errno(err));
677}
678
4d330cee
TB		 679#define safe_syscall0(type, name) \
680static type safe_##name(void) \
681{ \
682 return safe_syscall(__NR_##name); \
683}
684
685#define safe_syscall1(type, name, type1, arg1) \
686static type safe_##name(type1 arg1) \
687{ \
688 return safe_syscall(__NR_##name, arg1); \
689}
690
691#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
692static type safe_##name(type1 arg1, type2 arg2) \
693{ \
694 return safe_syscall(__NR_##name, arg1, arg2); \
695}
696
697#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
698static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
699{ \
700 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
701}
702
703#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
704 type4, arg4) \
705static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
706{ \
707 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
708}
709
710#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
711 type4, arg4, type5, arg5) \
712static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
713 type5 arg5) \
714{ \
715 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
716}
717
718#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
719 type4, arg4, type5, arg5, type6, arg6) \
720static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
721 type5 arg5, type6 arg6) \
722{ \
723 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
724}
725
50afd02b
TB		 726safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
727safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 728safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
729 int, flags, mode_t, mode)
4af80a37
TB		 730safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
731 struct rusage *, rusage)
732safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
733 int, options, struct rusage *, rusage)
ffdcbe22 734safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
6df9d38d
PM		 735safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
736 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
a6130237
PM		 737safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
738 struct timespec *, tsp, const sigset_t *, sigmask,
739 size_t, sigsetsize)
227f0214
PM		 740safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
741 int, maxevents, int, timeout, const sigset_t *, sigmask,
742 size_t, sigsetsize)
d509eeb1
PM		 743safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
744 const struct timespec *,timeout,int *,uaddr2,int,val3)
2fe4fba1 745safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 746safe_syscall2(int, kill, pid_t, pid, int, sig)
747safe_syscall2(int, tkill, int, tid, int, sig)
748safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
918c03ed
PM		 749safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
750safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
0f26386c
DJ		 751safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
752 unsigned long, pos_l, unsigned long, pos_h)
f8d00fba
DJ		 753safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
754 unsigned long, pos_l, unsigned long, pos_h)
2a3c7619
PM		 755safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
756 socklen_t, addrlen)
66687530
PM		 757safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
758 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
759safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
760 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
761safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
762safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
2a845989 763safe_syscall2(int, flock, int, fd, int, operation)
b3f82330
PM		 764safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
765 const struct timespec *, uts, size_t, sigsetsize)
ff6dc130
PM		 766safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
767 int, flags)
9e518226
PM		 768safe_syscall2(int, nanosleep, const struct timespec *, req,
769 struct timespec *, rem)
770#ifdef TARGET_NR_clock_nanosleep
771safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
772 const struct timespec *, req, struct timespec *, rem)
773#endif
89f9fe44
PM		 774#ifdef __NR_msgsnd
775safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
776 int, flags)
777safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
778 long, msgtype, int, flags)
ffb7ee79
PM		 779safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
780 unsigned, nsops, const struct timespec *, timeout)
89f9fe44
PM		 781#else
782/* This host kernel architecture uses a single ipc syscall; fake up
783 * wrappers for the sub-operations to hide this implementation detail.
784 * Annoyingly we can't include linux/ipc.h to get the constant definitions
785 * for the call parameter because some structs in there conflict with the
786 * sys/ipc.h ones. So we just define them here, and rely on them being
787 * the same for all host architectures.
788 */
ffb7ee79 789#define Q_SEMTIMEDOP 4
89f9fe44
PM		 790#define Q_MSGSND 11
791#define Q_MSGRCV 12
792#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
793
794safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
795 void *, ptr, long, fifth)
796static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
797{
798 return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
799}
800static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
801{
802 return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
803}
ffb7ee79
PM		 804static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
805 const struct timespec *timeout)
806{
807 return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
808 (long)timeout);
809}
89f9fe44 810#endif
d40ecd66
PM		 811#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
812safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
813 size_t, len, unsigned, prio, const struct timespec *, timeout)
814safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
815 size_t, len, unsigned *, prio, const struct timespec *, timeout)
816#endif
49ca6f3e
PM		 817/* We do ioctl like this rather than via safe_syscall3 to preserve the
818 * "third argument might be integer or pointer or not present" behaviour of
819 * the libc function.
820 */
821#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
435da5e7
PM		 822/* Similarly for fcntl. Note that callers must always:
823 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
824 * use the flock64 struct rather than unsuffixed flock
825 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
826 */
827#ifdef __NR_fcntl64
828#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
829#else
830#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
831#endif
50afd02b 832
8289d112
PB		 833static inline int host_to_target_sock_type(int host_type)
834{
835 int target_type;
836
837 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
838 case SOCK_DGRAM:
839 target_type = TARGET_SOCK_DGRAM;
840 break;
841 case SOCK_STREAM:
842 target_type = TARGET_SOCK_STREAM;
843 break;
844 default:
845 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
846 break;
847 }
848
849#if defined(SOCK_CLOEXEC)
850 if (host_type & SOCK_CLOEXEC) {
851 target_type |= TARGET_SOCK_CLOEXEC;
852 }
853#endif
854
855#if defined(SOCK_NONBLOCK)
856 if (host_type & SOCK_NONBLOCK) {
857 target_type |= TARGET_SOCK_NONBLOCK;
858 }
859#endif
860
861 return target_type;
862}
863
992f48a0
BS		 864static abi_ulong target_brk;
865static abi_ulong target_original_brk;
4d1de87c 866static abi_ulong brk_page;
31e31b8a 867
992f48a0 868void target_set_brk(abi_ulong new_brk)
31e31b8a 869{
4c1de73d 870 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 871 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 872}
873
4d1de87c
CV		 874//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
875#define DEBUGF_BRK(message, args...)
876
0da46a6e 877/* do_brk() must return target values and target errnos. */
992f48a0 878abi_long do_brk(abi_ulong new_brk)
31e31b8a 879{
992f48a0 880 abi_long mapped_addr;
ef4330c2 881 abi_ulong new_alloc_size;
31e31b8a 882
3a0c6c4a 883 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 884
885 if (!new_brk) {
3a0c6c4a 886 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 887 return target_brk;
4d1de87c
CV		 888 }
889 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 890 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
891 target_brk);
7ab240ad 892 return target_brk;
4d1de87c 893 }
3b46e624 894
4d1de87c
CV		 895 /* If the new brk is less than the highest page reserved to the
896 * target heap allocation, set it and we're almost done... */
897 if (new_brk <= brk_page) {
898 /* Heap contents are initialized to zero, as for anonymous
899 * mapped pages. */
900 if (new_brk > target_brk) {
901 memset(g2h(target_brk), 0, new_brk - target_brk);
902 }
31e31b8a 903 target_brk = new_brk;
3a0c6c4a 904 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
72e21db7 905 return target_brk;
31e31b8a
FB		 906 }
907
00faf08c
PM		 908 /* We need to allocate more memory after the brk... Note that
909 * we don't use MAP_FIXED because that will map over the top of
910 * any existing mapping (like the one with the host libc or qemu
911 * itself); instead we treat "mapped but at wrong address" as
912 * a failure and unmap again.
913 */
4d1de87c 914 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 915 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 916 PROT_READ|PROT_WRITE,
00faf08c
PM		 917 MAP_ANON|MAP_PRIVATE, 0, 0));
918
919 if (mapped_addr == brk_page) {
70afc343
CV		 920 /* Heap contents are initialized to zero, as for anonymous
921 * mapped pages. Technically the new pages are already
922 * initialized to zero since they *are* anonymous mapped
923 * pages, however we have to take care with the contents that
924 * come from the remaining part of the previous page: it may
925 * contains garbage data due to a previous heap usage (grown
926 * then shrunken). */
927 memset(g2h(target_brk), 0, brk_page - target_brk);
928
00faf08c 929 target_brk = new_brk;
4d1de87c 930 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 931 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
932 target_brk);
00faf08c
PM		 933 return target_brk;
934 } else if (mapped_addr != -1) {
935 /* Mapped but at wrong address, meaning there wasn't actually
936 * enough space for this brk.
937 */
938 target_munmap(mapped_addr, new_alloc_size);
939 mapped_addr = -1;
3a0c6c4a 940 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 941 }
942 else {
3a0c6c4a 943 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 944 }
7ab240ad 945
7dd46c02
RH		 946#if defined(TARGET_ALPHA)
947 /* We (partially) emulate OSF/1 on Alpha, which requires we
948 return a proper errno, not an unchanged brk value. */
00faf08c 949 return -TARGET_ENOMEM;
7dd46c02 950#endif
00faf08c 951 /* For everything else, return the previous break. */
7ab240ad 952 return target_brk;
31e31b8a
FB		 953}
954
26edcf41
TS		 955static inline abi_long copy_from_user_fdset(fd_set *fds,
956 abi_ulong target_fds_addr,
957 int n)
31e31b8a 958{
26edcf41
TS		 959 int i, nw, j, k;
960 abi_ulong b, *target_fds;
961
b1b2db29 962 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 963 if (!(target_fds = lock_user(VERIFY_READ,
964 target_fds_addr,
965 sizeof(abi_ulong) * nw,
966 1)))
967 return -TARGET_EFAULT;
968
969 FD_ZERO(fds);
970 k = 0;
971 for (i = 0; i < nw; i++) {
972 /* grab the abi_ulong */
973 __get_user(b, &target_fds[i]);
974 for (j = 0; j < TARGET_ABI_BITS; j++) {
975 /* check the bit inside the abi_ulong */
976 if ((b >> j) & 1)
977 FD_SET(k, fds);
978 k++;
31e31b8a 979 }
31e31b8a 980 }
26edcf41
TS		 981
982 unlock_user(target_fds, target_fds_addr, 0);
983
984 return 0;
31e31b8a
FB		 985}
986
055e0906
MF		 987static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
988 abi_ulong target_fds_addr,
989 int n)
990{
991 if (target_fds_addr) {
992 if (copy_from_user_fdset(fds, target_fds_addr, n))
993 return -TARGET_EFAULT;
994 *fds_ptr = fds;
995 } else {
996 *fds_ptr = NULL;
997 }
998 return 0;
999}
1000
26edcf41
TS		 1001static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
1002 const fd_set *fds,
1003 int n)
31e31b8a 1004{
31e31b8a 1005 int i, nw, j, k;
992f48a0 1006 abi_long v;
26edcf41 1007 abi_ulong *target_fds;
31e31b8a 1008
b1b2db29 1009 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 1010 if (!(target_fds = lock_user(VERIFY_WRITE,
1011 target_fds_addr,
1012 sizeof(abi_ulong) * nw,
1013 0)))
1014 return -TARGET_EFAULT;
1015
1016 k = 0;
1017 for (i = 0; i < nw; i++) {
1018 v = 0;
1019 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 1020 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 1021 k++;
31e31b8a 1022 }
26edcf41 1023 __put_user(v, &target_fds[i]);
31e31b8a 1024 }
26edcf41
TS		 1025
1026 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1027
1028 return 0;
31e31b8a
FB		 1029}
1030
c596ed17
FB		 1031#if defined(__alpha__)
1032#define HOST_HZ 1024
1033#else
1034#define HOST_HZ 100
1035#endif
1036
992f48a0 1037static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 1038{
1039#if HOST_HZ == TARGET_HZ
1040 return ticks;
1041#else
1042 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1043#endif
1044}
1045
579a97f7
FB		 1046static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1047 const struct rusage *rusage)
b409186b 1048{
53a5960a
PB		 1049 struct target_rusage *target_rusage;
1050
579a97f7
FB		 1051 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1052 return -TARGET_EFAULT;
cbb21eed
MB		 1053 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1054 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1055 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1056 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1057 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1058 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1059 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1060 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1061 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1062 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1063 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1064 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1065 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1066 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1067 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1068 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1069 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1070 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 1071 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 1072
1073 return 0;
b409186b
FB		 1074}
1075
cbb21eed 1076static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 1077{
cbb21eed 1078 abi_ulong target_rlim_swap;
95b33b2f
WT		 1079 rlim_t result;
1080
cbb21eed
MB		 1081 target_rlim_swap = tswapal(target_rlim);
1082 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1083 return RLIM_INFINITY;
1084
1085 result = target_rlim_swap;
1086 if (target_rlim_swap != (rlim_t)result)
1087 return RLIM_INFINITY;
95b33b2f
WT		 1088
1089 return result;
81bbe906
TY		 1090}
1091
cbb21eed 1092static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 1093{
cbb21eed
MB		 1094 abi_ulong target_rlim_swap;
1095 abi_ulong result;
95b33b2f 1096
cbb21eed 1097 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 1098 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 1099 else
95b33b2f 1100 target_rlim_swap = rlim;
cbb21eed 1101 result = tswapal(target_rlim_swap);
95b33b2f
WT		 1102
1103 return result;
81bbe906
TY		 1104}
1105
e22b7015
WT		 1106static inline int target_to_host_resource(int code)
1107{
1108 switch (code) {
1109 case TARGET_RLIMIT_AS:
1110 return RLIMIT_AS;
1111 case TARGET_RLIMIT_CORE:
1112 return RLIMIT_CORE;
1113 case TARGET_RLIMIT_CPU:
1114 return RLIMIT_CPU;
1115 case TARGET_RLIMIT_DATA:
1116 return RLIMIT_DATA;
1117 case TARGET_RLIMIT_FSIZE:
1118 return RLIMIT_FSIZE;
1119 case TARGET_RLIMIT_LOCKS:
1120 return RLIMIT_LOCKS;
1121 case TARGET_RLIMIT_MEMLOCK:
1122 return RLIMIT_MEMLOCK;
1123 case TARGET_RLIMIT_MSGQUEUE:
1124 return RLIMIT_MSGQUEUE;
1125 case TARGET_RLIMIT_NICE:
1126 return RLIMIT_NICE;
1127 case TARGET_RLIMIT_NOFILE:
1128 return RLIMIT_NOFILE;
1129 case TARGET_RLIMIT_NPROC:
1130 return RLIMIT_NPROC;
1131 case TARGET_RLIMIT_RSS:
1132 return RLIMIT_RSS;
1133 case TARGET_RLIMIT_RTPRIO:
1134 return RLIMIT_RTPRIO;
1135 case TARGET_RLIMIT_SIGPENDING:
1136 return RLIMIT_SIGPENDING;
1137 case TARGET_RLIMIT_STACK:
1138 return RLIMIT_STACK;
1139 default:
1140 return code;
1141 }
1142}
1143
788f5ec4
TS		 1144static inline abi_long copy_from_user_timeval(struct timeval *tv,
1145 abi_ulong target_tv_addr)
31e31b8a 1146{
53a5960a
PB		 1147 struct target_timeval *target_tv;
1148
788f5ec4 1149 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
579a97f7 1150 return -TARGET_EFAULT;
788f5ec4
TS		 1151
1152 __get_user(tv->tv_sec, &target_tv->tv_sec);
1153 __get_user(tv->tv_usec, &target_tv->tv_usec);
1154
1155 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1156
1157 return 0;
31e31b8a
FB		 1158}
1159
788f5ec4
TS		 1160static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1161 const struct timeval *tv)
31e31b8a 1162{
53a5960a
PB		 1163 struct target_timeval *target_tv;
1164
788f5ec4 1165 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
579a97f7 1166 return -TARGET_EFAULT;
788f5ec4
TS		 1167
1168 __put_user(tv->tv_sec, &target_tv->tv_sec);
1169 __put_user(tv->tv_usec, &target_tv->tv_usec);
1170
1171 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1172
1173 return 0;
31e31b8a
FB		 1174}
1175
ef4467e9
PB		 1176static inline abi_long copy_from_user_timezone(struct timezone *tz,
1177 abi_ulong target_tz_addr)
1178{
1179 struct target_timezone *target_tz;
1180
1181 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1182 return -TARGET_EFAULT;
1183 }
1184
1185 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1186 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1187
1188 unlock_user_struct(target_tz, target_tz_addr, 0);
1189
1190 return 0;
1191}
1192
8ec9cf89
NF		 1193#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1194#include <mqueue.h>
1195
24e1003a
AJ		 1196static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1197 abi_ulong target_mq_attr_addr)
1198{
1199 struct target_mq_attr *target_mq_attr;
1200
1201 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1202 target_mq_attr_addr, 1))
1203 return -TARGET_EFAULT;
1204
1205 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1206 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1207 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1208 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1209
1210 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1211
1212 return 0;
1213}
1214
1215static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1216 const struct mq_attr *attr)
1217{
1218 struct target_mq_attr *target_mq_attr;
1219
1220 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1221 target_mq_attr_addr, 0))
1222 return -TARGET_EFAULT;
1223
1224 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1225 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1226 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1227 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1228
1229 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1230
1231 return 0;
1232}
8ec9cf89 1233#endif
31e31b8a 1234
055e0906 1235#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1236/* do_select() must return target values and target errnos. */
992f48a0 1237static abi_long do_select(int n,
26edcf41
TS		 1238 abi_ulong rfd_addr, abi_ulong wfd_addr,
1239 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1240{
1241 fd_set rfds, wfds, efds;
1242 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1243 struct timeval tv;
1244 struct timespec ts, *ts_ptr;
992f48a0 1245 abi_long ret;
31e31b8a 1246
055e0906
MF		 1247 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1248 if (ret) {
1249 return ret;
53a5960a 1250 }
055e0906
MF		 1251 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1252 if (ret) {
1253 return ret;
53a5960a 1254 }
055e0906
MF		 1255 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1256 if (ret) {
1257 return ret;
53a5960a 1258 }
3b46e624 1259
26edcf41 1260 if (target_tv_addr) {
788f5ec4
TS		 1261 if (copy_from_user_timeval(&tv, target_tv_addr))
1262 return -TARGET_EFAULT;
6df9d38d
PM		 1263 ts.tv_sec = tv.tv_sec;
1264 ts.tv_nsec = tv.tv_usec * 1000;
1265 ts_ptr = &ts;
31e31b8a 1266 } else {
6df9d38d 1267 ts_ptr = NULL;
31e31b8a 1268 }
26edcf41 1269
6df9d38d
PM		 1270 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1271 ts_ptr, NULL));
53a5960a 1272
26edcf41
TS		 1273 if (!is_error(ret)) {
1274 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1275 return -TARGET_EFAULT;
1276 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1277 return -TARGET_EFAULT;
1278 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1279 return -TARGET_EFAULT;
31e31b8a 1280
6df9d38d
PM		 1281 if (target_tv_addr) {
1282 tv.tv_sec = ts.tv_sec;
1283 tv.tv_usec = ts.tv_nsec / 1000;
1284 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1285 return -TARGET_EFAULT;
1286 }
1287 }
31e31b8a 1288 }
579a97f7 1289
31e31b8a
FB		 1290 return ret;
1291}
5457dc9e
LV		 1292
1293#if defined(TARGET_WANT_OLD_SYS_SELECT)
1294static abi_long do_old_select(abi_ulong arg1)
1295{
1296 struct target_sel_arg_struct *sel;
1297 abi_ulong inp, outp, exp, tvp;
1298 long nsel;
1299
1300 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1301 return -TARGET_EFAULT;
1302 }
1303
1304 nsel = tswapal(sel->n);
1305 inp = tswapal(sel->inp);
1306 outp = tswapal(sel->outp);
1307 exp = tswapal(sel->exp);
1308 tvp = tswapal(sel->tvp);
1309
1310 unlock_user_struct(sel, arg1, 0);
1311
1312 return do_select(nsel, inp, outp, exp, tvp);
1313}
1314#endif
055e0906 1315#endif
31e31b8a 1316
099d6b0f
RV		 1317static abi_long do_pipe2(int host_pipe[], int flags)
1318{
1319#ifdef CONFIG_PIPE2
1320 return pipe2(host_pipe, flags);
1321#else
1322 return -ENOSYS;
1323#endif
1324}
1325
fb41a66e
RH		 1326static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1327 int flags, int is_pipe2)
099d6b0f
RV		 1328{
1329 int host_pipe[2];
1330 abi_long ret;
1331 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1332
1333 if (is_error(ret))
1334 return get_errno(ret);
fb41a66e
RH		 1335
1336 /* Several targets have special calling conventions for the original
1337 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1338 if (!is_pipe2) {
1339#if defined(TARGET_ALPHA)
1340 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1341 return host_pipe[0];
1342#elif defined(TARGET_MIPS)
1343 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1344 return host_pipe[0];
1345#elif defined(TARGET_SH4)
597c0212 1346 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1347 return host_pipe[0];
82f05b69
PM		 1348#elif defined(TARGET_SPARC)
1349 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1350 return host_pipe[0];
597c0212 1351#endif
fb41a66e
RH		 1352 }
1353
099d6b0f
RV		 1354 if (put_user_s32(host_pipe[0], pipedes)
1355 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1356 return -TARGET_EFAULT;
099d6b0f
RV		 1357 return get_errno(ret);
1358}
1359
b975b83b
LL		 1360static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1361 abi_ulong target_addr,
1362 socklen_t len)
1363{
1364 struct target_ip_mreqn *target_smreqn;
1365
1366 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1367 if (!target_smreqn)
1368 return -TARGET_EFAULT;
1369 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1370 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1371 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1372 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1373 unlock_user(target_smreqn, target_addr, 0);
1374
1375 return 0;
1376}
1377
7b36f782 1378static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1379 abi_ulong target_addr,
1380 socklen_t len)
7854b056 1381{
607175e0
AJ		 1382 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1383 sa_family_t sa_family;
53a5960a
PB		 1384 struct target_sockaddr *target_saddr;
1385
7b36f782
LV		 1386 if (fd_trans_target_to_host_addr(fd)) {
1387 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1388 }
1389
579a97f7
FB		 1390 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1391 if (!target_saddr)
1392 return -TARGET_EFAULT;
607175e0
AJ		 1393
1394 sa_family = tswap16(target_saddr->sa_family);
1395
1396 /* Oops. The caller might send a incomplete sun_path; sun_path
1397 * must be terminated by \0 (see the manual page), but
1398 * unfortunately it is quite common to specify sockaddr_un
1399 * length as "strlen(x->sun_path)" while it should be
1400 * "strlen(...) + 1". We'll fix that here if needed.
1401 * Linux kernel has a similar feature.
1402 */
1403
1404 if (sa_family == AF_UNIX) {
1405 if (len < unix_maxlen && len > 0) {
1406 char *cp = (char*)target_saddr;
1407
1408 if ( cp[len-1] && !cp[len] )
1409 len++;
1410 }
1411 if (len > unix_maxlen)
1412 len = unix_maxlen;
1413 }
1414
53a5960a 1415 memcpy(addr, target_saddr, len);
607175e0 1416 addr->sa_family = sa_family;
6c5b5645
LV		 1417 if (sa_family == AF_NETLINK) {
1418 struct sockaddr_nl *nladdr;
1419
1420 nladdr = (struct sockaddr_nl *)addr;
1421 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1422 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1423 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1424 struct target_sockaddr_ll *lladdr;
1425
1426 lladdr = (struct target_sockaddr_ll *)addr;
1427 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1428 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1429 }
53a5960a 1430 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1431
1432 return 0;
7854b056
FB		 1433}
1434
579a97f7
FB		 1435static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1436 struct sockaddr *addr,
1437 socklen_t len)
7854b056 1438{
53a5960a
PB		 1439 struct target_sockaddr *target_saddr;
1440
a1e22192
PM		 1441 if (len == 0) {
1442 return 0;
1443 }
6860710c 1444 assert(addr);
a1e22192 1445
579a97f7
FB		 1446 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1447 if (!target_saddr)
1448 return -TARGET_EFAULT;
53a5960a 1449 memcpy(target_saddr, addr, len);
a1e22192
PM		 1450 if (len >= offsetof(struct target_sockaddr, sa_family) +
1451 sizeof(target_saddr->sa_family)) {
1452 target_saddr->sa_family = tswap16(addr->sa_family);
1453 }
1454 if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
6c5b5645
LV		 1455 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1456 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1457 target_nl->nl_groups = tswap32(target_nl->nl_groups);
a82ea939
LV		 1458 } else if (addr->sa_family == AF_PACKET) {
1459 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1460 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1461 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
ee1ac3a1
HD		 1462 } else if (addr->sa_family == AF_INET6 &&
1463 len >= sizeof(struct target_sockaddr_in6)) {
1464 struct target_sockaddr_in6 *target_in6 =
1465 (struct target_sockaddr_in6 *)target_saddr;
1466 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
6c5b5645 1467 }
53a5960a 1468 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1469
1470 return 0;
7854b056
FB		 1471}
1472
5a4a898d
FB		 1473static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1474 struct target_msghdr *target_msgh)
7854b056
FB		 1475{
1476 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1477 abi_long msg_controllen;
1478 abi_ulong target_cmsg_addr;
ee104587 1479 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1480 socklen_t space = 0;
5a4a898d 1481
cbb21eed 1482 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1483 if (msg_controllen < sizeof (struct target_cmsghdr))
1484 goto the_end;
cbb21eed 1485 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1486 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1487 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1488 if (!target_cmsg)
1489 return -TARGET_EFAULT;
7854b056
FB		 1490
1491 while (cmsg && target_cmsg) {
1492 void *data = CMSG_DATA(cmsg);
1493 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1494
cbb21eed 1495 int len = tswapal(target_cmsg->cmsg_len)
ad762b99 1496 - sizeof(struct target_cmsghdr);
7854b056
FB		 1497
1498 space += CMSG_SPACE(len);
1499 if (space > msgh->msg_controllen) {
1500 space -= CMSG_SPACE(len);
c2aeb258
PM		 1501 /* This is a QEMU bug, since we allocated the payload
1502 * area ourselves (unlike overflow in host-to-target
1503 * conversion, which is just the guest giving us a buffer
1504 * that's too small). It can't happen for the payload types
1505 * we currently support; if it becomes an issue in future
1506 * we would need to improve our allocation strategy to
1507 * something more intelligent than "twice the size of the
1508 * target buffer we're reading from".
1509 */
31febb71 1510 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1511 break;
1512 }
1513
dbf4f796
PJ		 1514 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1515 cmsg->cmsg_level = SOL_SOCKET;
1516 } else {
1517 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1518 }
7854b056
FB		 1519 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1520 cmsg->cmsg_len = CMSG_LEN(len);
1521
30b8b68e 1522 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1523 int *fd = (int *)data;
1524 int *target_fd = (int *)target_data;
1525 int i, numfds = len / sizeof(int);
1526
876e23cb
PM		 1527 for (i = 0; i < numfds; i++) {
1528 __get_user(fd[i], target_fd + i);
1529 }
30b8b68e
AS		 1530 } else if (cmsg->cmsg_level == SOL_SOCKET
1531 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1532 struct ucred *cred = (struct ucred *)data;
1533 struct target_ucred *target_cred =
1534 (struct target_ucred *)target_data;
1535
876e23cb
PM		 1536 __get_user(cred->pid, &target_cred->pid);
1537 __get_user(cred->uid, &target_cred->uid);
1538 __get_user(cred->gid, &target_cred->gid);
30b8b68e
AS		 1539 } else {
1540 gemu_log("Unsupported ancillary data: %d/%d\n",
1541 cmsg->cmsg_level, cmsg->cmsg_type);
1542 memcpy(data, target_data, len);
7854b056
FB		 1543 }
1544
1545 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1546 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1547 target_cmsg_start);
7854b056 1548 }
5a4a898d
FB		 1549 unlock_user(target_cmsg, target_cmsg_addr, 0);
1550 the_end:
7854b056 1551 msgh->msg_controllen = space;
5a4a898d 1552 return 0;
7854b056
FB		 1553}
1554
5a4a898d
FB		 1555static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1556 struct msghdr *msgh)
7854b056
FB		 1557{
1558 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1559 abi_long msg_controllen;
1560 abi_ulong target_cmsg_addr;
ee104587 1561 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1562 socklen_t space = 0;
1563
cbb21eed 1564 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1565 if (msg_controllen < sizeof (struct target_cmsghdr))
1566 goto the_end;
cbb21eed 1567 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1568 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1569 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1570 if (!target_cmsg)
1571 return -TARGET_EFAULT;
1572
7854b056
FB		 1573 while (cmsg && target_cmsg) {
1574 void *data = CMSG_DATA(cmsg);
1575 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1576
ad762b99 1577 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
c2aeb258 1578 int tgt_len, tgt_space;
7854b056 1579
c2aeb258
PM		 1580 /* We never copy a half-header but may copy half-data;
1581 * this is Linux's behaviour in put_cmsg(). Note that
1582 * truncation here is a guest problem (which we report
1583 * to the guest via the CTRUNC bit), unlike truncation
1584 * in target_to_host_cmsg, which is a QEMU bug.
1585 */
7174970a 1586 if (msg_controllen < sizeof(struct target_cmsghdr)) {
c2aeb258 1587 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1588 break;
1589 }
1590
dbf4f796
PJ		 1591 if (cmsg->cmsg_level == SOL_SOCKET) {
1592 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1593 } else {
1594 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1595 }
7854b056 1596 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1597
c2aeb258
PM		 1598 /* Payload types which need a different size of payload on
1599 * the target must adjust tgt_len here.
1600 */
309786cf 1601 tgt_len = len;
c2aeb258
PM		 1602 switch (cmsg->cmsg_level) {
1603 case SOL_SOCKET:
1604 switch (cmsg->cmsg_type) {
1605 case SO_TIMESTAMP:
1606 tgt_len = sizeof(struct target_timeval);
1607 break;
1608 default:
1609 break;
1610 }
309786cf 1611 break;
c2aeb258
PM		 1612 default:
1613 break;
1614 }
1615
7174970a 1616 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
c2aeb258 1617 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7174970a 1618 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
c2aeb258
PM		 1619 }
1620
1621 /* We must now copy-and-convert len bytes of payload
1622 * into tgt_len bytes of destination space. Bear in mind
1623 * that in both source and destination we may be dealing
1624 * with a truncated value!
1625 */
52b65494
HD		 1626 switch (cmsg->cmsg_level) {
1627 case SOL_SOCKET:
1628 switch (cmsg->cmsg_type) {
1629 case SCM_RIGHTS:
1630 {
1631 int *fd = (int *)data;
1632 int *target_fd = (int *)target_data;
c2aeb258 1633 int i, numfds = tgt_len / sizeof(int);
52b65494 1634
876e23cb
PM		 1635 for (i = 0; i < numfds; i++) {
1636 __put_user(fd[i], target_fd + i);
1637 }
52b65494
HD		 1638 break;
1639 }
1640 case SO_TIMESTAMP:
1641 {
1642 struct timeval *tv = (struct timeval *)data;
1643 struct target_timeval *target_tv =
1644 (struct target_timeval *)target_data;
1645
c2aeb258
PM		 1646 if (len != sizeof(struct timeval) ||
1647 tgt_len != sizeof(struct target_timeval)) {
52b65494 1648 goto unimplemented;
c2aeb258 1649 }
52b65494
HD		 1650
1651 /* copy struct timeval to target */
876e23cb
PM		 1652 __put_user(tv->tv_sec, &target_tv->tv_sec);
1653 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 1654 break;
1655 }
4bc29756
HD		 1656 case SCM_CREDENTIALS:
1657 {
1658 struct ucred *cred = (struct ucred *)data;
1659 struct target_ucred *target_cred =
1660 (struct target_ucred *)target_data;
1661
1662 __put_user(cred->pid, &target_cred->pid);
1663 __put_user(cred->uid, &target_cred->uid);
1664 __put_user(cred->gid, &target_cred->gid);
1665 break;
1666 }
52b65494
HD		 1667 default:
1668 goto unimplemented;
1669 }
1670 break;
7854b056 1671
ee1ac3a1
HD		 1672 case SOL_IP:
1673 switch (cmsg->cmsg_type) {
1674 case IP_TTL:
1675 {
1676 uint32_t *v = (uint32_t *)data;
1677 uint32_t *t_int = (uint32_t *)target_data;
1678
7174970a
PM		 1679 if (len != sizeof(uint32_t) ||
1680 tgt_len != sizeof(uint32_t)) {
1681 goto unimplemented;
1682 }
ee1ac3a1
HD		 1683 __put_user(*v, t_int);
1684 break;
1685 }
1686 case IP_RECVERR:
1687 {
1688 struct errhdr_t {
1689 struct sock_extended_err ee;
1690 struct sockaddr_in offender;
1691 };
1692 struct errhdr_t *errh = (struct errhdr_t *)data;
1693 struct errhdr_t *target_errh =
1694 (struct errhdr_t *)target_data;
1695
7174970a
PM		 1696 if (len != sizeof(struct errhdr_t) ||
1697 tgt_len != sizeof(struct errhdr_t)) {
1698 goto unimplemented;
1699 }
ee1ac3a1
HD		 1700 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1701 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1702 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1703 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1704 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1705 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1706 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1707 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1708 (void *) &errh->offender, sizeof(errh->offender));
1709 break;
1710 }
1711 default:
1712 goto unimplemented;
1713 }
1714 break;
1715
1716 case SOL_IPV6:
1717 switch (cmsg->cmsg_type) {
1718 case IPV6_HOPLIMIT:
1719 {
1720 uint32_t *v = (uint32_t *)data;
1721 uint32_t *t_int = (uint32_t *)target_data;
1722
7174970a
PM		 1723 if (len != sizeof(uint32_t) ||
1724 tgt_len != sizeof(uint32_t)) {
1725 goto unimplemented;
1726 }
ee1ac3a1
HD		 1727 __put_user(*v, t_int);
1728 break;
1729 }
1730 case IPV6_RECVERR:
1731 {
1732 struct errhdr6_t {
1733 struct sock_extended_err ee;
1734 struct sockaddr_in6 offender;
1735 };
1736 struct errhdr6_t *errh = (struct errhdr6_t *)data;
1737 struct errhdr6_t *target_errh =
1738 (struct errhdr6_t *)target_data;
1739
7174970a
PM		 1740 if (len != sizeof(struct errhdr6_t) ||
1741 tgt_len != sizeof(struct errhdr6_t)) {
1742 goto unimplemented;
1743 }
ee1ac3a1
HD		 1744 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1745 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1746 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1747 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1748 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1749 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1750 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1751 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1752 (void *) &errh->offender, sizeof(errh->offender));
1753 break;
1754 }
1755 default:
1756 goto unimplemented;
1757 }
1758 break;
1759
52b65494
HD		 1760 default:
1761 unimplemented:
aebf5bc7
JH		 1762 gemu_log("Unsupported ancillary data: %d/%d\n",
1763 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 1764 memcpy(target_data, data, MIN(len, tgt_len));
1765 if (tgt_len > len) {
1766 memset(target_data + len, 0, tgt_len - len);
1767 }
7854b056
FB		 1768 }
1769
7174970a
PM		 1770 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
1771 tgt_space = TARGET_CMSG_SPACE(tgt_len);
c2aeb258
PM		 1772 if (msg_controllen < tgt_space) {
1773 tgt_space = msg_controllen;
1774 }
1775 msg_controllen -= tgt_space;
1776 space += tgt_space;
7854b056 1777 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1778 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1779 target_cmsg_start);
7854b056 1780 }
5a4a898d
FB		 1781 unlock_user(target_cmsg, target_cmsg_addr, space);
1782 the_end:
cbb21eed 1783 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1784 return 0;
7854b056
FB		 1785}
1786
0da46a6e 1787/* do_setsockopt() Must return target values and target errnos. */
992f48a0 1788static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 1789 abi_ulong optval_addr, socklen_t optlen)
7854b056 1790{
992f48a0 1791 abi_long ret;
32407103 1792 int val;
b975b83b 1793 struct ip_mreqn *ip_mreq;
6e3cb58f 1794 struct ip_mreq_source *ip_mreq_source;
3b46e624 1795
8853f86e
FB		 1796 switch(level) {
1797 case SOL_TCP:
7854b056 1798 /* TCP options all take an 'int' value. */
7854b056 1799 if (optlen < sizeof(uint32_t))
0da46a6e 1800 return -TARGET_EINVAL;
3b46e624 1801
2f619698
FB		 1802 if (get_user_u32(val, optval_addr))
1803 return -TARGET_EFAULT;
8853f86e
FB		 1804 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1805 break;
1806 case SOL_IP:
1807 switch(optname) {
2efbe911
FB		 1808 case IP_TOS:
1809 case IP_TTL:
8853f86e 1810 case IP_HDRINCL:
2efbe911
FB		 1811 case IP_ROUTER_ALERT:
1812 case IP_RECVOPTS:
1813 case IP_RETOPTS:
1814 case IP_PKTINFO:
1815 case IP_MTU_DISCOVER:
1816 case IP_RECVERR:
ee1ac3a1 1817 case IP_RECVTTL:
2efbe911
FB		 1818 case IP_RECVTOS:
1819#ifdef IP_FREEBIND
1820 case IP_FREEBIND:
1821#endif
1822 case IP_MULTICAST_TTL:
1823 case IP_MULTICAST_LOOP:
8853f86e
FB		 1824 val = 0;
1825 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 1826 if (get_user_u32(val, optval_addr))
1827 return -TARGET_EFAULT;
8853f86e 1828 } else if (optlen >= 1) {
2f619698
FB		 1829 if (get_user_u8(val, optval_addr))
1830 return -TARGET_EFAULT;
8853f86e
FB		 1831 }
1832 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1833 break;
b975b83b
LL		 1834 case IP_ADD_MEMBERSHIP:
1835 case IP_DROP_MEMBERSHIP:
1836 if (optlen < sizeof (struct target_ip_mreq) ||
1837 optlen > sizeof (struct target_ip_mreqn))
1838 return -TARGET_EINVAL;
1839
1840 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1841 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1842 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1843 break;
1844
6e3cb58f
LL		 1845 case IP_BLOCK_SOURCE:
1846 case IP_UNBLOCK_SOURCE:
1847 case IP_ADD_SOURCE_MEMBERSHIP:
1848 case IP_DROP_SOURCE_MEMBERSHIP:
1849 if (optlen != sizeof (struct target_ip_mreq_source))
1850 return -TARGET_EINVAL;
1851
1852 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1853 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1854 unlock_user (ip_mreq_source, optval_addr, 0);
1855 break;
1856
920394db
JH		 1857 default:
1858 goto unimplemented;
1859 }
1860 break;
0d78b3b5
LV		 1861 case SOL_IPV6:
1862 switch (optname) {
1863 case IPV6_MTU_DISCOVER:
1864 case IPV6_MTU:
1865 case IPV6_V6ONLY:
1866 case IPV6_RECVPKTINFO:
ee1ac3a1 1867 case IPV6_UNICAST_HOPS:
21749c4c
LV		 1868 case IPV6_MULTICAST_HOPS:
1869 case IPV6_MULTICAST_LOOP:
ee1ac3a1
HD		 1870 case IPV6_RECVERR:
1871 case IPV6_RECVHOPLIMIT:
1872 case IPV6_2292HOPLIMIT:
1873 case IPV6_CHECKSUM:
0d78b3b5
LV		 1874 val = 0;
1875 if (optlen < sizeof(uint32_t)) {
1876 return -TARGET_EINVAL;
1877 }
1878 if (get_user_u32(val, optval_addr)) {
1879 return -TARGET_EFAULT;
1880 }
1881 ret = get_errno(setsockopt(sockfd, level, optname,
1882 &val, sizeof(val)));
1883 break;
ee1ac3a1
HD		 1884 case IPV6_PKTINFO:
1885 {
1886 struct in6_pktinfo pki;
1887
1888 if (optlen < sizeof(pki)) {
1889 return -TARGET_EINVAL;
1890 }
1891
1892 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
1893 return -TARGET_EFAULT;
1894 }
1895
1896 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
1897
1898 ret = get_errno(setsockopt(sockfd, level, optname,
1899 &pki, sizeof(pki)));
1900 break;
1901 }
1902 default:
1903 goto unimplemented;
1904 }
1905 break;
1906 case SOL_ICMPV6:
1907 switch (optname) {
1908 case ICMPV6_FILTER:
1909 {
1910 struct icmp6_filter icmp6f;
1911
1912 if (optlen > sizeof(icmp6f)) {
1913 optlen = sizeof(icmp6f);
1914 }
1915
1916 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
1917 return -TARGET_EFAULT;
1918 }
1919
1920 for (val = 0; val < 8; val++) {
1921 icmp6f.data[val] = tswap32(icmp6f.data[val]);
1922 }
1923
1924 ret = get_errno(setsockopt(sockfd, level, optname,
1925 &icmp6f, optlen));
1926 break;
1927 }
0d78b3b5
LV		 1928 default:
1929 goto unimplemented;
1930 }
1931 break;
920394db
JH		 1932 case SOL_RAW:
1933 switch (optname) {
1934 case ICMP_FILTER:
ee1ac3a1
HD		 1935 case IPV6_CHECKSUM:
1936 /* those take an u32 value */
920394db
JH		 1937 if (optlen < sizeof(uint32_t)) {
1938 return -TARGET_EINVAL;
1939 }
1940
1941 if (get_user_u32(val, optval_addr)) {
1942 return -TARGET_EFAULT;
1943 }
1944 ret = get_errno(setsockopt(sockfd, level, optname,
1945 &val, sizeof(val)));
1946 break;
1947
8853f86e
FB		 1948 default:
1949 goto unimplemented;
1950 }
1951 break;
3532fa74 1952 case TARGET_SOL_SOCKET:
8853f86e 1953 switch (optname) {
1b09aeb9
LV		 1954 case TARGET_SO_RCVTIMEO:
1955 {
1956 struct timeval tv;
1957
1958 optname = SO_RCVTIMEO;
1959
1960set_timeout:
1961 if (optlen != sizeof(struct target_timeval)) {
1962 return -TARGET_EINVAL;
1963 }
1964
1965 if (copy_from_user_timeval(&tv, optval_addr)) {
1966 return -TARGET_EFAULT;
1967 }
1968
1969 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1970 &tv, sizeof(tv)));
1971 return ret;
1972 }
1973 case TARGET_SO_SNDTIMEO:
1974 optname = SO_SNDTIMEO;
1975 goto set_timeout;
f57d4192
LV		 1976 case TARGET_SO_ATTACH_FILTER:
1977 {
1978 struct target_sock_fprog *tfprog;
1979 struct target_sock_filter *tfilter;
1980 struct sock_fprog fprog;
1981 struct sock_filter *filter;
1982 int i;
1983
1984 if (optlen != sizeof(*tfprog)) {
1985 return -TARGET_EINVAL;
1986 }
1987 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
1988 return -TARGET_EFAULT;
1989 }
1990 if (!lock_user_struct(VERIFY_READ, tfilter,
1991 tswapal(tfprog->filter), 0)) {
1992 unlock_user_struct(tfprog, optval_addr, 1);
1993 return -TARGET_EFAULT;
1994 }
1995
1996 fprog.len = tswap16(tfprog->len);
0e173b24 1997 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 1998 if (filter == NULL) {
1999 unlock_user_struct(tfilter, tfprog->filter, 1);
2000 unlock_user_struct(tfprog, optval_addr, 1);
2001 return -TARGET_ENOMEM;
2002 }
2003 for (i = 0; i < fprog.len; i++) {
2004 filter[i].code = tswap16(tfilter[i].code);
2005 filter[i].jt = tfilter[i].jt;
2006 filter[i].jf = tfilter[i].jf;
2007 filter[i].k = tswap32(tfilter[i].k);
2008 }
2009 fprog.filter = filter;
2010
2011 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2012 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2013 g_free(filter);
f57d4192
LV		 2014
2015 unlock_user_struct(tfilter, tfprog->filter, 1);
2016 unlock_user_struct(tfprog, optval_addr, 1);
2017 return ret;
2018 }
451aaf68
JT		 2019 case TARGET_SO_BINDTODEVICE:
2020 {
2021 char *dev_ifname, *addr_ifname;
2022
2023 if (optlen > IFNAMSIZ - 1) {
2024 optlen = IFNAMSIZ - 1;
2025 }
2026 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2027 if (!dev_ifname) {
2028 return -TARGET_EFAULT;
2029 }
2030 optname = SO_BINDTODEVICE;
2031 addr_ifname = alloca(IFNAMSIZ);
2032 memcpy(addr_ifname, dev_ifname, optlen);
2033 addr_ifname[optlen] = 0;
fad6c58a
CG		 2034 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2035 addr_ifname, optlen));
451aaf68
JT		 2036 unlock_user (dev_ifname, optval_addr, 0);
2037 return ret;
2038 }
83eb6e50
CMAB		 2039 case TARGET_SO_LINGER:
2040 {
2041 struct linger lg;
2042 struct target_linger *tlg;
2043
2044 if (optlen != sizeof(struct target_linger)) {
2045 return -TARGET_EINVAL;
2046 }
2047 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2048 return -TARGET_EFAULT;
2049 }
2050 __get_user(lg.l_onoff, &tlg->l_onoff);
2051 __get_user(lg.l_linger, &tlg->l_linger);
2052 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2053 &lg, sizeof(lg)));
2054 unlock_user_struct(tlg, optval_addr, 0);
2055 return ret;
2056 }
8853f86e 2057 /* Options with 'int' argument. */
3532fa74
FB		 2058 case TARGET_SO_DEBUG:
2059 optname = SO_DEBUG;
2060 break;
2061 case TARGET_SO_REUSEADDR:
2062 optname = SO_REUSEADDR;
2063 break;
113a9dd7
YS		 2064#ifdef SO_REUSEPORT
2065 case TARGET_SO_REUSEPORT:
2066 optname = SO_REUSEPORT;
2067 break;
2068#endif
3532fa74
FB		 2069 case TARGET_SO_TYPE:
2070 optname = SO_TYPE;
2071 break;
2072 case TARGET_SO_ERROR:
2073 optname = SO_ERROR;
2074 break;
2075 case TARGET_SO_DONTROUTE:
2076 optname = SO_DONTROUTE;
2077 break;
2078 case TARGET_SO_BROADCAST:
2079 optname = SO_BROADCAST;
2080 break;
2081 case TARGET_SO_SNDBUF:
2082 optname = SO_SNDBUF;
2083 break;
d79b6cc4
PB		 2084 case TARGET_SO_SNDBUFFORCE:
2085 optname = SO_SNDBUFFORCE;
2086 break;
3532fa74
FB		 2087 case TARGET_SO_RCVBUF:
2088 optname = SO_RCVBUF;
2089 break;
d79b6cc4
PB		 2090 case TARGET_SO_RCVBUFFORCE:
2091 optname = SO_RCVBUFFORCE;
2092 break;
3532fa74
FB		 2093 case TARGET_SO_KEEPALIVE:
2094 optname = SO_KEEPALIVE;
2095 break;
2096 case TARGET_SO_OOBINLINE:
2097 optname = SO_OOBINLINE;
2098 break;
2099 case TARGET_SO_NO_CHECK:
2100 optname = SO_NO_CHECK;
2101 break;
2102 case TARGET_SO_PRIORITY:
2103 optname = SO_PRIORITY;
2104 break;
5e83e8e3 2105#ifdef SO_BSDCOMPAT
3532fa74
FB		 2106 case TARGET_SO_BSDCOMPAT:
2107 optname = SO_BSDCOMPAT;
2108 break;
5e83e8e3 2109#endif
3532fa74
FB		 2110 case TARGET_SO_PASSCRED:
2111 optname = SO_PASSCRED;
2112 break;
82d0fe6b
PB		 2113 case TARGET_SO_PASSSEC:
2114 optname = SO_PASSSEC;
2115 break;
3532fa74
FB		 2116 case TARGET_SO_TIMESTAMP:
2117 optname = SO_TIMESTAMP;
2118 break;
2119 case TARGET_SO_RCVLOWAT:
2120 optname = SO_RCVLOWAT;
2121 break;
8853f86e
FB		 2122 default:
2123 goto unimplemented;
2124 }
3532fa74 2125 if (optlen < sizeof(uint32_t))
2f619698 2126 return -TARGET_EINVAL;
3532fa74 2127
2f619698
FB		 2128 if (get_user_u32(val, optval_addr))
2129 return -TARGET_EFAULT;
3532fa74 2130 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2131 break;
7854b056 2132 default:
8853f86e 2133 unimplemented:
b2bedb21 2134 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 2135 ret = -TARGET_ENOPROTOOPT;
7854b056 2136 }
8853f86e 2137 return ret;
7854b056
FB		 2138}
2139
0da46a6e 2140/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2141static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2142 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2143{
992f48a0 2144 abi_long ret;
b55266b5
BS		 2145 int len, val;
2146 socklen_t lv;
8853f86e
FB		 2147
2148 switch(level) {
3532fa74 2149 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2150 level = SOL_SOCKET;
2151 switch (optname) {
2152 /* These don't just return a single integer */
f3b974cd
JL		 2153 case TARGET_SO_RCVTIMEO:
2154 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 2155 case TARGET_SO_PEERNAME:
2156 goto unimplemented;
583359a6
AP		 2157 case TARGET_SO_PEERCRED: {
2158 struct ucred cr;
2159 socklen_t crlen;
2160 struct target_ucred *tcr;
2161
2162 if (get_user_u32(len, optlen)) {
2163 return -TARGET_EFAULT;
2164 }
2165 if (len < 0) {
2166 return -TARGET_EINVAL;
2167 }
2168
2169 crlen = sizeof(cr);
2170 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2171 &cr, &crlen));
2172 if (ret < 0) {
2173 return ret;
2174 }
2175 if (len > crlen) {
2176 len = crlen;
2177 }
2178 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2179 return -TARGET_EFAULT;
2180 }
2181 __put_user(cr.pid, &tcr->pid);
2182 __put_user(cr.uid, &tcr->uid);
2183 __put_user(cr.gid, &tcr->gid);
2184 unlock_user_struct(tcr, optval_addr, 1);
2185 if (put_user_u32(len, optlen)) {
83eb6e50
CMAB		 2186 return -TARGET_EFAULT;
2187 }
2188 break;
2189 }
2190 case TARGET_SO_LINGER:
2191 {
2192 struct linger lg;
2193 socklen_t lglen;
2194 struct target_linger *tlg;
2195
2196 if (get_user_u32(len, optlen)) {
2197 return -TARGET_EFAULT;
2198 }
2199 if (len < 0) {
2200 return -TARGET_EINVAL;
2201 }
2202
2203 lglen = sizeof(lg);
2204 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2205 &lg, &lglen));
2206 if (ret < 0) {
2207 return ret;
2208 }
2209 if (len > lglen) {
2210 len = lglen;
2211 }
2212 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2213 return -TARGET_EFAULT;
2214 }
2215 __put_user(lg.l_onoff, &tlg->l_onoff);
2216 __put_user(lg.l_linger, &tlg->l_linger);
2217 unlock_user_struct(tlg, optval_addr, 1);
2218 if (put_user_u32(len, optlen)) {
583359a6
AP		 2219 return -TARGET_EFAULT;
2220 }
2221 break;
2222 }
f3b974cd
JL		 2223 /* Options with 'int' argument. */
2224 case TARGET_SO_DEBUG:
2225 optname = SO_DEBUG;
2226 goto int_case;
2227 case TARGET_SO_REUSEADDR:
2228 optname = SO_REUSEADDR;
2229 goto int_case;
113a9dd7
YS		 2230#ifdef SO_REUSEPORT
2231 case TARGET_SO_REUSEPORT:
2232 optname = SO_REUSEPORT;
2233 goto int_case;
2234#endif
f3b974cd
JL		 2235 case TARGET_SO_TYPE:
2236 optname = SO_TYPE;
2237 goto int_case;
2238 case TARGET_SO_ERROR:
2239 optname = SO_ERROR;
2240 goto int_case;
2241 case TARGET_SO_DONTROUTE:
2242 optname = SO_DONTROUTE;
2243 goto int_case;
2244 case TARGET_SO_BROADCAST:
2245 optname = SO_BROADCAST;
2246 goto int_case;
2247 case TARGET_SO_SNDBUF:
2248 optname = SO_SNDBUF;
2249 goto int_case;
2250 case TARGET_SO_RCVBUF:
2251 optname = SO_RCVBUF;
2252 goto int_case;
2253 case TARGET_SO_KEEPALIVE:
2254 optname = SO_KEEPALIVE;
2255 goto int_case;
2256 case TARGET_SO_OOBINLINE:
2257 optname = SO_OOBINLINE;
2258 goto int_case;
2259 case TARGET_SO_NO_CHECK:
2260 optname = SO_NO_CHECK;
2261 goto int_case;
2262 case TARGET_SO_PRIORITY:
2263 optname = SO_PRIORITY;
2264 goto int_case;
2265#ifdef SO_BSDCOMPAT
2266 case TARGET_SO_BSDCOMPAT:
2267 optname = SO_BSDCOMPAT;
2268 goto int_case;
2269#endif
2270 case TARGET_SO_PASSCRED:
2271 optname = SO_PASSCRED;
2272 goto int_case;
2273 case TARGET_SO_TIMESTAMP:
2274 optname = SO_TIMESTAMP;
2275 goto int_case;
2276 case TARGET_SO_RCVLOWAT:
2277 optname = SO_RCVLOWAT;
2278 goto int_case;
aec1ca41
PB		 2279 case TARGET_SO_ACCEPTCONN:
2280 optname = SO_ACCEPTCONN;
2281 goto int_case;
8853f86e 2282 default:
2efbe911
FB		 2283 goto int_case;
2284 }
2285 break;
2286 case SOL_TCP:
2287 /* TCP options all take an 'int' value. */
2288 int_case:
2f619698
FB		 2289 if (get_user_u32(len, optlen))
2290 return -TARGET_EFAULT;
2efbe911 2291 if (len < 0)
0da46a6e 2292 return -TARGET_EINVAL;
73160d95 2293 lv = sizeof(lv);
2efbe911
FB		 2294 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2295 if (ret < 0)
2296 return ret;
8289d112
PB		 2297 if (optname == SO_TYPE) {
2298 val = host_to_target_sock_type(val);
2299 }
2efbe911
FB		 2300 if (len > lv)
2301 len = lv;
2f619698
FB		 2302 if (len == 4) {
2303 if (put_user_u32(val, optval_addr))
2304 return -TARGET_EFAULT;
2305 } else {
2306 if (put_user_u8(val, optval_addr))
2307 return -TARGET_EFAULT;
f3b974cd 2308 }
2f619698
FB		 2309 if (put_user_u32(len, optlen))
2310 return -TARGET_EFAULT;
2efbe911
FB		 2311 break;
2312 case SOL_IP:
2313 switch(optname) {
2314 case IP_TOS:
2315 case IP_TTL:
2316 case IP_HDRINCL:
2317 case IP_ROUTER_ALERT:
2318 case IP_RECVOPTS:
2319 case IP_RETOPTS:
2320 case IP_PKTINFO:
2321 case IP_MTU_DISCOVER:
2322 case IP_RECVERR:
2323 case IP_RECVTOS:
2324#ifdef IP_FREEBIND
2325 case IP_FREEBIND:
2326#endif
2327 case IP_MULTICAST_TTL:
2328 case IP_MULTICAST_LOOP:
2f619698
FB		 2329 if (get_user_u32(len, optlen))
2330 return -TARGET_EFAULT;
8853f86e 2331 if (len < 0)
0da46a6e 2332 return -TARGET_EINVAL;
73160d95 2333 lv = sizeof(lv);
8853f86e
FB		 2334 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2335 if (ret < 0)
2336 return ret;
2efbe911 2337 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2338 len = 1;
2f619698
FB		 2339 if (put_user_u32(len, optlen)
2340 || put_user_u8(val, optval_addr))
2341 return -TARGET_EFAULT;
2efbe911 2342 } else {
2efbe911
FB		 2343 if (len > sizeof(int))
2344 len = sizeof(int);
2f619698
FB		 2345 if (put_user_u32(len, optlen)
2346 || put_user_u32(val, optval_addr))
2347 return -TARGET_EFAULT;
2efbe911 2348 }
8853f86e 2349 break;
2efbe911 2350 default:
c02f499e
TS		 2351 ret = -TARGET_ENOPROTOOPT;
2352 break;
8853f86e
FB		 2353 }
2354 break;
bd8ed485
TD		 2355 case SOL_IPV6:
2356 switch (optname) {
2357 case IPV6_MTU_DISCOVER:
2358 case IPV6_MTU:
2359 case IPV6_V6ONLY:
2360 case IPV6_RECVPKTINFO:
2361 case IPV6_UNICAST_HOPS:
2362 case IPV6_MULTICAST_HOPS:
2363 case IPV6_MULTICAST_LOOP:
2364 case IPV6_RECVERR:
2365 case IPV6_RECVHOPLIMIT:
2366 case IPV6_2292HOPLIMIT:
2367 case IPV6_CHECKSUM:
2368 if (get_user_u32(len, optlen))
2369 return -TARGET_EFAULT;
2370 if (len < 0)
2371 return -TARGET_EINVAL;
2372 lv = sizeof(lv);
2373 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2374 if (ret < 0)
2375 return ret;
2376 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2377 len = 1;
2378 if (put_user_u32(len, optlen)
2379 || put_user_u8(val, optval_addr))
2380 return -TARGET_EFAULT;
2381 } else {
2382 if (len > sizeof(int))
2383 len = sizeof(int);
2384 if (put_user_u32(len, optlen)
2385 || put_user_u32(val, optval_addr))
2386 return -TARGET_EFAULT;
2387 }
2388 break;
2389 default:
2390 ret = -TARGET_ENOPROTOOPT;
2391 break;
2392 }
2393 break;
8853f86e
FB		 2394 default:
2395 unimplemented:
2396 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2397 level, optname);
c02f499e 2398 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 2399 break;
2400 }
2401 return ret;
7854b056
FB		 2402}
2403
9ac22517
MF		 2404/* Convert target low/high pair representing file offset into the host
2405 * low/high pair. This function doesn't handle offsets bigger than 64 bits
2406 * as the kernel doesn't handle them either.
2407 */
2408static void target_to_host_low_high(abi_ulong tlow,
2409 abi_ulong thigh,
2410 unsigned long *hlow,
2411 unsigned long *hhigh)
2412{
2413 uint64_t off = tlow |
2414 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
2415 TARGET_LONG_BITS / 2;
2416
2417 *hlow = off;
2418 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
2419}
2420
f287b2c2 2421static struct iovec *lock_iovec(int type, abi_ulong target_addr,
dab32b32 2422 abi_ulong count, int copy)
53a5960a
PB		 2423{
2424 struct target_iovec *target_vec;
f287b2c2
RH		 2425 struct iovec *vec;
2426 abi_ulong total_len, max_len;
d732dcb4 2427 int i;
501bb4b0 2428 int err = 0;
29560a6c 2429 bool bad_address = false;
53a5960a 2430
f287b2c2
RH		 2431 if (count == 0) {
2432 errno = 0;
2433 return NULL;
2434 }
dab32b32 2435 if (count > IOV_MAX) {
f287b2c2
RH		 2436 errno = EINVAL;
2437 return NULL;
2438 }
2439
0e173b24 2440 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 2441 if (vec == NULL) {
2442 errno = ENOMEM;
2443 return NULL;
2444 }
2445
2446 target_vec = lock_user(VERIFY_READ, target_addr,
2447 count * sizeof(struct target_iovec), 1);
2448 if (target_vec == NULL) {
501bb4b0 2449 err = EFAULT;
f287b2c2
RH		 2450 goto fail2;
2451 }
2452
2453 /* ??? If host page size > target page size, this will result in a
2454 value larger than what we can actually support. */
2455 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2456 total_len = 0;
2457
2458 for (i = 0; i < count; i++) {
2459 abi_ulong base = tswapal(target_vec[i].iov_base);
2460 abi_long len = tswapal(target_vec[i].iov_len);
2461
2462 if (len < 0) {
501bb4b0 2463 err = EINVAL;
f287b2c2
RH		 2464 goto fail;
2465 } else if (len == 0) {
2466 /* Zero length pointer is ignored. */
2467 vec[i].iov_base = 0;
41df8411 2468 } else {
f287b2c2 2469 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 2470 /* If the first buffer pointer is bad, this is a fault. But
2471 * subsequent bad buffers will result in a partial write; this
2472 * is realized by filling the vector with null pointers and
2473 * zero lengths. */
f287b2c2 2474 if (!vec[i].iov_base) {
29560a6c
TM		 2475 if (i == 0) {
2476 err = EFAULT;
2477 goto fail;
2478 } else {
2479 bad_address = true;
2480 }
2481 }
2482 if (bad_address) {
2483 len = 0;
f287b2c2
RH		 2484 }
2485 if (len > max_len - total_len) {
2486 len = max_len - total_len;
2487 }
41df8411 2488 }
f287b2c2
RH		 2489 vec[i].iov_len = len;
2490 total_len += len;
579a97f7 2491 }
f287b2c2
RH		 2492
2493 unlock_user(target_vec, target_addr, 0);
2494 return vec;
2495
2496 fail:
7eff518b
CG		 2497 while (--i >= 0) {
2498 if (tswapal(target_vec[i].iov_len) > 0) {
2499 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2500 }
2501 }
f287b2c2 2502 unlock_user(target_vec, target_addr, 0);
501bb4b0 2503 fail2:
0e173b24 2504 g_free(vec);
501bb4b0 2505 errno = err;
f287b2c2 2506 return NULL;
53a5960a
PB		 2507}
2508
f287b2c2 2509static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
dab32b32 2510 abi_ulong count, int copy)
53a5960a
PB		 2511{
2512 struct target_iovec *target_vec;
53a5960a
PB		 2513 int i;
2514
f287b2c2
RH		 2515 target_vec = lock_user(VERIFY_READ, target_addr,
2516 count * sizeof(struct target_iovec), 1);
2517 if (target_vec) {
2518 for (i = 0; i < count; i++) {
2519 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 2520 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 2521 if (len < 0) {
2522 break;
2523 }
d732dcb4
AZ		 2524 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2525 }
f287b2c2 2526 unlock_user(target_vec, target_addr, 0);
53a5960a 2527 }
579a97f7 2528
0e173b24 2529 g_free(vec);
53a5960a
PB		 2530}
2531
53d09b76 2532static inline int target_to_host_sock_type(int *type)
3532fa74 2533{
f651e6ae
PJ		 2534 int host_type = 0;
2535 int target_type = *type;
2536
2537 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 2538 case TARGET_SOCK_DGRAM:
f651e6ae 2539 host_type = SOCK_DGRAM;
3532fa74
FB		 2540 break;
2541 case TARGET_SOCK_STREAM:
f651e6ae 2542 host_type = SOCK_STREAM;
3532fa74 2543 break;
f651e6ae
PJ		 2544 default:
2545 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 2546 break;
2547 }
f651e6ae 2548 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 2549#if defined(SOCK_CLOEXEC)
f651e6ae 2550 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 2551#else
2552 return -TARGET_EINVAL;
2553#endif
f651e6ae
PJ		 2554 }
2555 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 2556#if defined(SOCK_NONBLOCK)
f651e6ae 2557 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 2558#elif !defined(O_NONBLOCK)
2559 return -TARGET_EINVAL;
2560#endif
f651e6ae
PJ		 2561 }
2562 *type = host_type;
53d09b76
EI		 2563 return 0;
2564}
2565
2566/* Try to emulate socket type flags after socket creation. */
2567static int sock_flags_fixup(int fd, int target_type)
2568{
2569#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2570 if (target_type & TARGET_SOCK_NONBLOCK) {
2571 int flags = fcntl(fd, F_GETFL);
2572 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2573 close(fd);
2574 return -TARGET_EINVAL;
2575 }
2576 }
2577#endif
2578 return fd;
f651e6ae
PJ		 2579}
2580
2581/* do_socket() Must return target values and target errnos. */
2582static abi_long do_socket(int domain, int type, int protocol)
2583{
53d09b76
EI		 2584 int target_type = type;
2585 int ret;
2586
2587 ret = target_to_host_sock_type(&type);
2588 if (ret) {
2589 return ret;
2590 }
f651e6ae 2591
575b22b1
LV		 2592 if (domain == PF_NETLINK && !(
2593#ifdef CONFIG_RTNETLINK
2594 protocol == NETLINK_ROUTE ||
2595#endif
2596 protocol == NETLINK_KOBJECT_UEVENT ||
2597 protocol == NETLINK_AUDIT)) {
6c5b5645
LV		 2598 return -EPFNOSUPPORT;
2599 }
ff626f2d
LV		 2600
2601 if (domain == AF_PACKET ||
2602 (domain == AF_INET && type == SOCK_PACKET)) {
2603 protocol = tswap16(protocol);
2604 }
2605
53d09b76
EI		 2606 ret = get_errno(socket(domain, type, protocol));
2607 if (ret >= 0) {
2608 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 2609 if (type == SOCK_PACKET) {
2610 /* Manage an obsolete case :
2611 * if socket type is SOCK_PACKET, bind by name
2612 */
2613 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 2614 } else if (domain == PF_NETLINK) {
2615 switch (protocol) {
575b22b1 2616#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2617 case NETLINK_ROUTE:
2618 fd_trans_register(ret, &target_netlink_route_trans);
2619 break;
575b22b1 2620#endif
b265620b
LV		 2621 case NETLINK_KOBJECT_UEVENT:
2622 /* nothing to do: messages are strings */
2623 break;
5ce9bb59
LV		 2624 case NETLINK_AUDIT:
2625 fd_trans_register(ret, &target_netlink_audit_trans);
2626 break;
6c5b5645
LV		 2627 default:
2628 g_assert_not_reached();
2629 }
0cf22722 2630 }
53d09b76
EI		 2631 }
2632 return ret;
3532fa74
FB		 2633}
2634
0da46a6e 2635/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 2636static abi_long do_bind(int sockfd, abi_ulong target_addr,
2637 socklen_t addrlen)
3532fa74 2638{
8f7aeaf6 2639 void *addr;
917507b0 2640 abi_long ret;
8f7aeaf6 2641
38724253 2642 if ((int)addrlen < 0) {
8f7aeaf6 2643 return -TARGET_EINVAL;
38724253 2644 }
8f7aeaf6 2645
607175e0 2646 addr = alloca(addrlen+1);
3b46e624 2647
7b36f782 2648 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2649 if (ret)
2650 return ret;
2651
3532fa74
FB		 2652 return get_errno(bind(sockfd, addr, addrlen));
2653}
2654
0da46a6e 2655/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 2656static abi_long do_connect(int sockfd, abi_ulong target_addr,
2657 socklen_t addrlen)
3532fa74 2658{
8f7aeaf6 2659 void *addr;
917507b0 2660 abi_long ret;
8f7aeaf6 2661
38724253 2662 if ((int)addrlen < 0) {
8f7aeaf6 2663 return -TARGET_EINVAL;
38724253 2664 }
8f7aeaf6 2665
2dd08dfd 2666 addr = alloca(addrlen+1);
3b46e624 2667
7b36f782 2668 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2669 if (ret)
2670 return ret;
2671
2a3c7619 2672 return get_errno(safe_connect(sockfd, addr, addrlen));
3532fa74
FB		 2673}
2674
f19e00d7
AG		 2675/* do_sendrecvmsg_locked() Must return target values and target errnos. */
2676static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2677 int flags, int send)
3532fa74 2678{
6de645c7 2679 abi_long ret, len;
3532fa74 2680 struct msghdr msg;
dab32b32 2681 abi_ulong count;
3532fa74 2682 struct iovec *vec;
992f48a0 2683 abi_ulong target_vec;
3532fa74 2684
3532fa74
FB		 2685 if (msgp->msg_name) {
2686 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 2687 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 2688 ret = target_to_host_sockaddr(fd, msg.msg_name,
2689 tswapal(msgp->msg_name),
2690 msg.msg_namelen);
26a6fc96
PM		 2691 if (ret == -TARGET_EFAULT) {
2692 /* For connected sockets msg_name and msg_namelen must
2693 * be ignored, so returning EFAULT immediately is wrong.
2694 * Instead, pass a bad msg_name to the host kernel, and
2695 * let it decide whether to return EFAULT or not.
2696 */
2697 msg.msg_name = (void *)-1;
2698 } else if (ret) {
f287b2c2 2699 goto out2;
917507b0 2700 }
3532fa74
FB		 2701 } else {
2702 msg.msg_name = NULL;
2703 msg.msg_namelen = 0;
2704 }
cbb21eed 2705 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74 2706 msg.msg_control = alloca(msg.msg_controllen);
1d3d1b23
JS		 2707 memset(msg.msg_control, 0, msg.msg_controllen);
2708
3532fa74 2709 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 2710
cbb21eed 2711 count = tswapal(msgp->msg_iovlen);
cbb21eed 2712 target_vec = tswapal(msgp->msg_iov);
97b07970
PM		 2713
2714 if (count > IOV_MAX) {
2715 /* sendrcvmsg returns a different errno for this condition than
2716 * readv/writev, so we must catch it here before lock_iovec() does.
2717 */
2718 ret = -TARGET_EMSGSIZE;
2719 goto out2;
2720 }
2721
f287b2c2
RH		 2722 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2723 target_vec, count, send);
2724 if (vec == NULL) {
2725 ret = -host_to_target_errno(errno);
2726 goto out2;
2727 }
3532fa74
FB		 2728 msg.msg_iovlen = count;
2729 msg.msg_iov = vec;
3b46e624 2730
3532fa74 2731 if (send) {
6c5b5645 2732 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2733 void *host_msg;
2734
2735 host_msg = g_malloc(msg.msg_iov->iov_len);
2736 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
2737 ret = fd_trans_target_to_host_data(fd)(host_msg,
6c5b5645 2738 msg.msg_iov->iov_len);
7d61d892
LV		 2739 if (ret >= 0) {
2740 msg.msg_iov->iov_base = host_msg;
2741 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2742 }
2743 g_free(host_msg);
6c5b5645
LV		 2744 } else {
2745 ret = target_to_host_cmsg(&msg, msgp);
7d61d892
LV		 2746 if (ret == 0) {
2747 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2748 }
6c5b5645 2749 }
3532fa74 2750 } else {
66687530 2751 ret = get_errno(safe_recvmsg(fd, &msg, flags));
6de645c7
AZ		 2752 if (!is_error(ret)) {
2753 len = ret;
6c5b5645
LV		 2754 if (fd_trans_host_to_target_data(fd)) {
2755 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2a03d3e6 2756 MIN(msg.msg_iov->iov_len, len));
6c5b5645
LV		 2757 } else {
2758 ret = host_to_target_cmsg(msgp, &msg);
2759 }
ca619067
JH		 2760 if (!is_error(ret)) {
2761 msgp->msg_namelen = tswap32(msg.msg_namelen);
26a6fc96 2762 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ca619067
JH		 2763 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2764 msg.msg_name, msg.msg_namelen);
2765 if (ret) {
2766 goto out;
2767 }
2768 }
2769
6de645c7 2770 ret = len;
ca619067 2771 }
6de645c7 2772 }
3532fa74 2773 }
ca619067
JH		 2774
2775out:
3532fa74 2776 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 2777out2:
f19e00d7
AG		 2778 return ret;
2779}
2780
2781static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2782 int flags, int send)
2783{
2784 abi_long ret;
2785 struct target_msghdr *msgp;
2786
2787 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2788 msgp,
2789 target_msg,
2790 send ? 1 : 0)) {
2791 return -TARGET_EFAULT;
2792 }
2793 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 2794 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 2795 return ret;
2796}
2797
f19e00d7
AG		 2798/* We don't rely on the C library to have sendmmsg/recvmmsg support,
2799 * so it might not have this *mmsg-specific flag either.
2800 */
2801#ifndef MSG_WAITFORONE
2802#define MSG_WAITFORONE 0x10000
2803#endif
2804
2805static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2806 unsigned int vlen, unsigned int flags,
2807 int send)
2808{
2809 struct target_mmsghdr *mmsgp;
2810 abi_long ret = 0;
2811 int i;
2812
2813 if (vlen > UIO_MAXIOV) {
2814 vlen = UIO_MAXIOV;
2815 }
2816
2817 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2818 if (!mmsgp) {
2819 return -TARGET_EFAULT;
2820 }
2821
2822 for (i = 0; i < vlen; i++) {
2823 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2824 if (is_error(ret)) {
2825 break;
2826 }
2827 mmsgp[i].msg_len = tswap32(ret);
2828 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2829 if (flags & MSG_WAITFORONE) {
2830 flags |= MSG_DONTWAIT;
2831 }
2832 }
2833
2834 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2835
2836 /* Return number of datagrams sent if we sent any at all;
2837 * otherwise return the error.
2838 */
2839 if (i) {
2840 return i;
2841 }
2842 return ret;
2843}
f19e00d7 2844
a94b4987
PM		 2845/* do_accept4() Must return target values and target errnos. */
2846static abi_long do_accept4(int fd, abi_ulong target_addr,
2847 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 2848{
2f619698
FB		 2849 socklen_t addrlen;
2850 void *addr;
992f48a0 2851 abi_long ret;
d25295d4
PJ		 2852 int host_flags;
2853
2854 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 2855
a94b4987 2856 if (target_addr == 0) {
ff6dc130 2857 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
a94b4987 2858 }
917507b0
AP		 2859
2860 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 2861 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 2862 return -TARGET_EINVAL;
2f619698 2863
38724253 2864 if ((int)addrlen < 0) {
8f7aeaf6 2865 return -TARGET_EINVAL;
38724253 2866 }
8f7aeaf6 2867
917507b0
AP		 2868 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2869 return -TARGET_EINVAL;
2870
2f619698
FB		 2871 addr = alloca(addrlen);
2872
ff6dc130 2873 ret = get_errno(safe_accept4(fd, addr, &addrlen, host_flags));
1be9e1dc
PB		 2874 if (!is_error(ret)) {
2875 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2876 if (put_user_u32(addrlen, target_addrlen_addr))
2877 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2878 }
2879 return ret;
2880}
2881
0da46a6e 2882/* do_getpeername() Must return target values and target errnos. */
992f48a0 2883static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 2884 abi_ulong target_addrlen_addr)
1be9e1dc 2885{
2f619698
FB		 2886 socklen_t addrlen;
2887 void *addr;
992f48a0 2888 abi_long ret;
1be9e1dc 2889
2f619698
FB		 2890 if (get_user_u32(addrlen, target_addrlen_addr))
2891 return -TARGET_EFAULT;
2892
38724253 2893 if ((int)addrlen < 0) {
8f7aeaf6 2894 return -TARGET_EINVAL;
38724253 2895 }
8f7aeaf6 2896
917507b0
AP		 2897 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2898 return -TARGET_EFAULT;
2899
2f619698
FB		 2900 addr = alloca(addrlen);
2901
1be9e1dc
PB		 2902 ret = get_errno(getpeername(fd, addr, &addrlen));
2903 if (!is_error(ret)) {
2904 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2905 if (put_user_u32(addrlen, target_addrlen_addr))
2906 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2907 }
2908 return ret;
2909}
2910
0da46a6e 2911/* do_getsockname() Must return target values and target errnos. */
992f48a0 2912static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 2913 abi_ulong target_addrlen_addr)
1be9e1dc 2914{
2f619698
FB		 2915 socklen_t addrlen;
2916 void *addr;
992f48a0 2917 abi_long ret;
1be9e1dc 2918
2f619698
FB		 2919 if (get_user_u32(addrlen, target_addrlen_addr))
2920 return -TARGET_EFAULT;
2921
38724253 2922 if ((int)addrlen < 0) {
8f7aeaf6 2923 return -TARGET_EINVAL;
38724253 2924 }
8f7aeaf6 2925
917507b0
AP		 2926 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2927 return -TARGET_EFAULT;
2928
2f619698
FB		 2929 addr = alloca(addrlen);
2930
1be9e1dc
PB		 2931 ret = get_errno(getsockname(fd, addr, &addrlen));
2932 if (!is_error(ret)) {
2933 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2934 if (put_user_u32(addrlen, target_addrlen_addr))
2935 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2936 }
2937 return ret;
2938}
2939
0da46a6e 2940/* do_socketpair() Must return target values and target errnos. */
992f48a0 2941static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 2942 abi_ulong target_tab_addr)
1be9e1dc
PB		 2943{
2944 int tab[2];
992f48a0 2945 abi_long ret;
1be9e1dc 2946
f651e6ae
PJ		 2947 target_to_host_sock_type(&type);
2948
1be9e1dc
PB		 2949 ret = get_errno(socketpair(domain, type, protocol, tab));
2950 if (!is_error(ret)) {
2f619698
FB		 2951 if (put_user_s32(tab[0], target_tab_addr)
2952 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
2953 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2954 }
2955 return ret;
2956}
2957
0da46a6e 2958/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 2959static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
2960 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 2961{
2962 void *addr;
2963 void *host_msg;
7d61d892 2964 void *copy_msg = NULL;
992f48a0 2965 abi_long ret;
1be9e1dc 2966
38724253 2967 if ((int)addrlen < 0) {
8f7aeaf6 2968 return -TARGET_EINVAL;
38724253 2969 }
8f7aeaf6 2970
579a97f7
FB		 2971 host_msg = lock_user(VERIFY_READ, msg, len, 1);
2972 if (!host_msg)
2973 return -TARGET_EFAULT;
6c5b5645 2974 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2975 copy_msg = host_msg;
2976 host_msg = g_malloc(len);
2977 memcpy(host_msg, copy_msg, len);
6c5b5645
LV		 2978 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
2979 if (ret < 0) {
7d61d892 2980 goto fail;
6c5b5645
LV		 2981 }
2982 }
1be9e1dc 2983 if (target_addr) {
2dd08dfd 2984 addr = alloca(addrlen+1);
7b36f782 2985 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0 2986 if (ret) {
7d61d892 2987 goto fail;
917507b0 2988 }
66687530 2989 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
1be9e1dc 2990 } else {
66687530 2991 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
1be9e1dc 2992 }
7d61d892
LV		 2993fail:
2994 if (copy_msg) {
2995 g_free(host_msg);
2996 host_msg = copy_msg;
2997 }
1be9e1dc
PB		 2998 unlock_user(host_msg, msg, 0);
2999 return ret;
3000}
3001
0da46a6e 3002/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3003static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3004 abi_ulong target_addr,
3005 abi_ulong target_addrlen)
1be9e1dc
PB		 3006{
3007 socklen_t addrlen;
3008 void *addr;
3009 void *host_msg;
992f48a0 3010 abi_long ret;
1be9e1dc 3011
579a97f7
FB		 3012 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3013 if (!host_msg)
3014 return -TARGET_EFAULT;
1be9e1dc 3015 if (target_addr) {
2f619698
FB		 3016 if (get_user_u32(addrlen, target_addrlen)) {
3017 ret = -TARGET_EFAULT;
3018 goto fail;
3019 }
38724253 3020 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3021 ret = -TARGET_EINVAL;
3022 goto fail;
3023 }
1be9e1dc 3024 addr = alloca(addrlen);
66687530
PM		 3025 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
3026 addr, &addrlen));
1be9e1dc
PB		 3027 } else {
3028 addr = NULL; /* To keep compiler quiet. */
66687530 3029 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
1be9e1dc
PB		 3030 }
3031 if (!is_error(ret)) {
c35e1f9c 3032 if (fd_trans_host_to_target_data(fd)) {
2a03d3e6
LV		 3033 abi_long trans;
3034 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
3035 if (is_error(trans)) {
3036 ret = trans;
3037 goto fail;
3038 }
c35e1f9c 3039 }
1be9e1dc
PB		 3040 if (target_addr) {
3041 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3042 if (put_user_u32(addrlen, target_addrlen)) {
3043 ret = -TARGET_EFAULT;
3044 goto fail;
3045 }
1be9e1dc
PB		 3046 }
3047 unlock_user(host_msg, msg, len);
3048 } else {
2f619698 3049fail:
1be9e1dc
PB		 3050 unlock_user(host_msg, msg, 0);
3051 }
3052 return ret;
3053}
3054
32407103 3055#ifdef TARGET_NR_socketcall
ff71a454 3056/* do_socketcall() must return target values and target errnos. */
992f48a0 3057static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3058{
ff71a454
AM		 3059 static const unsigned nargs[] = { /* number of arguments per operation */
3060 [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
3061 [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
3062 [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
3063 [TARGET_SYS_LISTEN] = 2, /* fd, backlog */
3064 [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
3065 [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
3066 [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
3067 [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
3068 [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
3069 [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
3070 [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
3071 [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
3072 [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
3073 [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3074 [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3075 [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
3076 [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
3077 [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
3078 [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
3079 [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
62dc90c6
MT		 3080 };
3081 abi_long a[6]; /* max 6 args */
ff71a454 3082 unsigned i;
62dc90c6 3083
ff71a454
AM		 3084 /* check the range of the first argument num */
3085 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3086 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3087 return -TARGET_EINVAL;
3088 }
3089 /* ensure we have space for args */
3090 if (nargs[num] > ARRAY_SIZE(a)) {
3091 return -TARGET_EINVAL;
3092 }
3093 /* collect the arguments in a[] according to nargs[] */
3094 for (i = 0; i < nargs[num]; ++i) {
3095 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3096 return -TARGET_EFAULT;
31e31b8a 3097 }
62dc90c6 3098 }
ff71a454 3099 /* now when we have the args, invoke the appropriate underlying function */
62dc90c6 3100 switch (num) {
ff71a454 3101 case TARGET_SYS_SOCKET: /* domain, type, protocol */
62dc90c6 3102 return do_socket(a[0], a[1], a[2]);
ff71a454 3103 case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
62dc90c6 3104 return do_bind(a[0], a[1], a[2]);
ff71a454 3105 case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
62dc90c6 3106 return do_connect(a[0], a[1], a[2]);
ff71a454 3107 case TARGET_SYS_LISTEN: /* sockfd, backlog */
62dc90c6 3108 return get_errno(listen(a[0], a[1]));
ff71a454 3109 case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
62dc90c6 3110 return do_accept4(a[0], a[1], a[2], 0);
ff71a454 3111 case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
62dc90c6 3112 return do_getsockname(a[0], a[1], a[2]);
ff71a454 3113 case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
62dc90c6 3114 return do_getpeername(a[0], a[1], a[2]);
ff71a454 3115 case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
62dc90c6 3116 return do_socketpair(a[0], a[1], a[2], a[3]);
ff71a454 3117 case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
62dc90c6 3118 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3119 case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
62dc90c6 3120 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3121 case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3122 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3123 case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3124 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3125 case TARGET_SYS_SHUTDOWN: /* sockfd, how */
62dc90c6 3126 return get_errno(shutdown(a[0], a[1]));
ff71a454
AM		 3127 case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3128 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3129 case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3130 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3131 case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
62dc90c6 3132 return do_sendrecvmsg(a[0], a[1], a[2], 1);
ff71a454 3133 case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
62dc90c6 3134 return do_sendrecvmsg(a[0], a[1], a[2], 0);
ff71a454
AM		 3135 case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
3136 return do_accept4(a[0], a[1], a[2], a[3]);
3137 case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
5a53dc50 3138 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
ff71a454
AM		 3139 case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
3140 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
31e31b8a
FB		 3141 default:
3142 gemu_log("Unsupported socketcall: %d\n", num);
ff71a454 3143 return -TARGET_EINVAL;
31e31b8a 3144 }
31e31b8a 3145}
32407103 3146#endif
31e31b8a 3147
8853f86e
FB		 3148#define N_SHM_REGIONS 32
3149
3150static struct shm_region {
b6e17875
PM		 3151 abi_ulong start;
3152 abi_ulong size;
3153 bool in_use;
8853f86e
FB		 3154} shm_regions[N_SHM_REGIONS];
3155
005eb2ae
PM		 3156#ifndef TARGET_SEMID64_DS
3157/* asm-generic version of this struct */
3158struct target_semid64_ds
3eb6b044
TS		 3159{
3160 struct target_ipc_perm sem_perm;
992f48a0 3161 abi_ulong sem_otime;
005eb2ae 3162#if TARGET_ABI_BITS == 32
992f48a0 3163 abi_ulong __unused1;
03527344 3164#endif
992f48a0 3165 abi_ulong sem_ctime;
005eb2ae 3166#if TARGET_ABI_BITS == 32
992f48a0 3167 abi_ulong __unused2;
03527344 3168#endif
992f48a0
BS		 3169 abi_ulong sem_nsems;
3170 abi_ulong __unused3;
3171 abi_ulong __unused4;
3eb6b044 3172};
005eb2ae 3173#endif
3eb6b044 3174
579a97f7
FB		 3175static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3176 abi_ulong target_addr)
3eb6b044
TS		 3177{
3178 struct target_ipc_perm *target_ip;
005eb2ae 3179 struct target_semid64_ds *target_sd;
3eb6b044 3180
579a97f7
FB		 3181 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3182 return -TARGET_EFAULT;
e8bbe36c 3183 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3184 host_ip->__key = tswap32(target_ip->__key);
3185 host_ip->uid = tswap32(target_ip->uid);
3186 host_ip->gid = tswap32(target_ip->gid);
3187 host_ip->cuid = tswap32(target_ip->cuid);
3188 host_ip->cgid = tswap32(target_ip->cgid);
3189#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3190 host_ip->mode = tswap32(target_ip->mode);
3191#else
cbb21eed 3192 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3193#endif
3194#if defined(TARGET_PPC)
3195 host_ip->__seq = tswap32(target_ip->__seq);
3196#else
3197 host_ip->__seq = tswap16(target_ip->__seq);
3198#endif
3eb6b044 3199 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3200 return 0;
3eb6b044
TS		 3201}
3202
579a97f7
FB		 3203static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3204 struct ipc_perm *host_ip)
3eb6b044
TS		 3205{
3206 struct target_ipc_perm *target_ip;
005eb2ae 3207 struct target_semid64_ds *target_sd;
3eb6b044 3208
579a97f7
FB		 3209 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3210 return -TARGET_EFAULT;
3eb6b044 3211 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3212 target_ip->__key = tswap32(host_ip->__key);
3213 target_ip->uid = tswap32(host_ip->uid);
3214 target_ip->gid = tswap32(host_ip->gid);
3215 target_ip->cuid = tswap32(host_ip->cuid);
3216 target_ip->cgid = tswap32(host_ip->cgid);
3217#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3218 target_ip->mode = tswap32(host_ip->mode);
3219#else
cbb21eed 3220 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3221#endif
3222#if defined(TARGET_PPC)
3223 target_ip->__seq = tswap32(host_ip->__seq);
3224#else
3225 target_ip->__seq = tswap16(host_ip->__seq);
3226#endif
3eb6b044 3227 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3228 return 0;
3eb6b044
TS		 3229}
3230
579a97f7
FB		 3231static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3232 abi_ulong target_addr)
3eb6b044 3233{
005eb2ae 3234 struct target_semid64_ds *target_sd;
3eb6b044 3235
579a97f7
FB		 3236 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3237 return -TARGET_EFAULT;
e5289087
AJ		 3238 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3239 return -TARGET_EFAULT;
cbb21eed
MB		 3240 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3241 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3242 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3243 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3244 return 0;
3eb6b044
TS		 3245}
3246
579a97f7
FB		 3247static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3248 struct semid_ds *host_sd)
3eb6b044 3249{
005eb2ae 3250 struct target_semid64_ds *target_sd;
3eb6b044 3251
579a97f7
FB		 3252 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3253 return -TARGET_EFAULT;
e5289087 3254 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3255 return -TARGET_EFAULT;
cbb21eed
MB		 3256 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3257 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3258 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3259 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3260 return 0;
3eb6b044
TS		 3261}
3262
e5289087
AJ		 3263struct target_seminfo {
3264 int semmap;
3265 int semmni;
3266 int semmns;
3267 int semmnu;
3268 int semmsl;
3269 int semopm;
3270 int semume;
3271 int semusz;
3272 int semvmx;
3273 int semaem;
3274};
3275
3276static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3277 struct seminfo *host_seminfo)
3278{
3279 struct target_seminfo *target_seminfo;
3280 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3281 return -TARGET_EFAULT;
3282 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3283 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3284 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3285 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3286 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3287 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3288 __put_user(host_seminfo->semume, &target_seminfo->semume);
3289 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3290 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3291 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3292 unlock_user_struct(target_seminfo, target_addr, 1);
3293 return 0;
3294}
3295
fa294816
TS		 3296union semun {
3297 int val;
3eb6b044 3298 struct semid_ds *buf;
fa294816 3299 unsigned short *array;
e5289087 3300 struct seminfo *__buf;
fa294816
TS		 3301};
3302
3eb6b044
TS		 3303union target_semun {
3304 int val;
e5289087
AJ		 3305 abi_ulong buf;
3306 abi_ulong array;
3307 abi_ulong __buf;
3eb6b044
TS		 3308};
3309
e5289087
AJ		 3310static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3311 abi_ulong target_addr)
3eb6b044 3312{
e5289087
AJ		 3313 int nsems;
3314 unsigned short *array;
3315 union semun semun;
3316 struct semid_ds semid_ds;
3317 int i, ret;
3eb6b044 3318
e5289087
AJ		 3319 semun.buf = &semid_ds;
3320
3321 ret = semctl(semid, 0, IPC_STAT, semun);
3322 if (ret == -1)
3323 return get_errno(ret);
3324
3325 nsems = semid_ds.sem_nsems;
3326
0e173b24 3327 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 3328 if (!*host_array) {
3329 return -TARGET_ENOMEM;
3330 }
e5289087
AJ		 3331 array = lock_user(VERIFY_READ, target_addr,
3332 nsems*sizeof(unsigned short), 1);
69d4c703 3333 if (!array) {
0e173b24 3334 g_free(*host_array);
e5289087 3335 return -TARGET_EFAULT;
69d4c703 3336 }
e5289087
AJ		 3337
3338 for(i=0; i<nsems; i++) {
3339 __get_user((*host_array)[i], &array[i]);
3eb6b044 3340 }
e5289087
AJ		 3341 unlock_user(array, target_addr, 0);
3342
579a97f7 3343 return 0;
3eb6b044
TS		 3344}
3345
e5289087
AJ		 3346static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3347 unsigned short **host_array)
3eb6b044 3348{
e5289087
AJ		 3349 int nsems;
3350 unsigned short *array;
3351 union semun semun;
3352 struct semid_ds semid_ds;
3353 int i, ret;
3eb6b044 3354
e5289087
AJ		 3355 semun.buf = &semid_ds;
3356
3357 ret = semctl(semid, 0, IPC_STAT, semun);
3358 if (ret == -1)
3359 return get_errno(ret);
3360
3361 nsems = semid_ds.sem_nsems;
3362
3363 array = lock_user(VERIFY_WRITE, target_addr,
3364 nsems*sizeof(unsigned short), 0);
3365 if (!array)
3366 return -TARGET_EFAULT;
3367
3368 for(i=0; i<nsems; i++) {
3369 __put_user((*host_array)[i], &array[i]);
3eb6b044 3370 }
0e173b24 3371 g_free(*host_array);
e5289087
AJ		 3372 unlock_user(array, target_addr, 1);
3373
579a97f7 3374 return 0;
3eb6b044
TS		 3375}
3376
e5289087 3377static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 3378 abi_ulong target_arg)
3eb6b044 3379{
d1c002b6 3380 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 3381 union semun arg;
3382 struct semid_ds dsarg;
7b8118e8 3383 unsigned short *array = NULL;
e5289087
AJ		 3384 struct seminfo seminfo;
3385 abi_long ret = -TARGET_EINVAL;
3386 abi_long err;
3387 cmd &= 0xff;
3eb6b044
TS		 3388
3389 switch( cmd ) {
3390 case GETVAL:
3eb6b044 3391 case SETVAL:
5464baec
TM		 3392 /* In 64 bit cross-endian situations, we will erroneously pick up
3393 * the wrong half of the union for the "val" element. To rectify
3394 * this, the entire 8-byte structure is byteswapped, followed by
3395 * a swap of the 4 byte val field. In other cases, the data is
3396 * already in proper host byte order. */
3397 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3398 target_su.buf = tswapal(target_su.buf);
3399 arg.val = tswap32(target_su.val);
3400 } else {
3401 arg.val = target_su.val;
3402 }
e5289087 3403 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 3404 break;
3405 case GETALL:
3eb6b044 3406 case SETALL:
e5289087
AJ		 3407 err = target_to_host_semarray(semid, &array, target_su.array);
3408 if (err)
3409 return err;
3410 arg.array = array;
3411 ret = get_errno(semctl(semid, semnum, cmd, arg));
3412 err = host_to_target_semarray(semid, target_su.array, &array);
3413 if (err)
3414 return err;
3eb6b044
TS		 3415 break;
3416 case IPC_STAT:
3eb6b044 3417 case IPC_SET:
e5289087
AJ		 3418 case SEM_STAT:
3419 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3420 if (err)
3421 return err;
3422 arg.buf = &dsarg;
3423 ret = get_errno(semctl(semid, semnum, cmd, arg));
3424 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3425 if (err)
3426 return err;
3427 break;
3428 case IPC_INFO:
3429 case SEM_INFO:
3430 arg.__buf = &seminfo;
3431 ret = get_errno(semctl(semid, semnum, cmd, arg));
3432 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3433 if (err)
3434 return err;
3435 break;
3436 case IPC_RMID:
3437 case GETPID:
3438 case GETNCNT:
3439 case GETZCNT:
3440 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 3441 break;
3eb6b044
TS		 3442 }
3443
3444 return ret;
3445}
3446
e5289087
AJ		 3447struct target_sembuf {
3448 unsigned short sem_num;
3449 short sem_op;
3450 short sem_flg;
3451};
3452
3453static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3454 abi_ulong target_addr,
3455 unsigned nsops)
3456{
3457 struct target_sembuf *target_sembuf;
3458 int i;
3459
3460 target_sembuf = lock_user(VERIFY_READ, target_addr,
3461 nsops*sizeof(struct target_sembuf), 1);
3462 if (!target_sembuf)
3463 return -TARGET_EFAULT;
3464
3465 for(i=0; i<nsops; i++) {
3466 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3467 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3468 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3469 }
3470
3471 unlock_user(target_sembuf, target_addr, 0);
3472
3473 return 0;
3474}
3475
3476static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3477{
3478 struct sembuf sops[nsops];
3479
3480 if (target_to_host_sembuf(sops, ptr, nsops))
3481 return -TARGET_EFAULT;
3482
ffb7ee79 3483 return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
e5289087
AJ		 3484}
3485
1bc012f6
TS		 3486struct target_msqid_ds
3487{
1c54ff97
AJ		 3488 struct target_ipc_perm msg_perm;
3489 abi_ulong msg_stime;
3490#if TARGET_ABI_BITS == 32
3491 abi_ulong __unused1;
3492#endif
3493 abi_ulong msg_rtime;
3494#if TARGET_ABI_BITS == 32
3495 abi_ulong __unused2;
3496#endif
3497 abi_ulong msg_ctime;
3498#if TARGET_ABI_BITS == 32
3499 abi_ulong __unused3;
3500#endif
3501 abi_ulong __msg_cbytes;
3502 abi_ulong msg_qnum;
3503 abi_ulong msg_qbytes;
3504 abi_ulong msg_lspid;
3505 abi_ulong msg_lrpid;
3506 abi_ulong __unused4;
3507 abi_ulong __unused5;
1bc012f6
TS		 3508};
3509
579a97f7
FB		 3510static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3511 abi_ulong target_addr)
1bc012f6
TS		 3512{
3513 struct target_msqid_ds *target_md;
3514
579a97f7
FB		 3515 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3516 return -TARGET_EFAULT;
1c54ff97
AJ		 3517 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3518 return -TARGET_EFAULT;
cbb21eed
MB		 3519 host_md->msg_stime = tswapal(target_md->msg_stime);
3520 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3521 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3522 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3523 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3524 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3525 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3526 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 3527 unlock_user_struct(target_md, target_addr, 0);
579a97f7 3528 return 0;
1bc012f6
TS		 3529}
3530
579a97f7
FB		 3531static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3532 struct msqid_ds *host_md)
1bc012f6
TS		 3533{
3534 struct target_msqid_ds *target_md;
3535
579a97f7
FB		 3536 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3537 return -TARGET_EFAULT;
1c54ff97
AJ		 3538 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3539 return -TARGET_EFAULT;
cbb21eed
MB		 3540 target_md->msg_stime = tswapal(host_md->msg_stime);
3541 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3542 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3543 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3544 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3545 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3546 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3547 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 3548 unlock_user_struct(target_md, target_addr, 1);
579a97f7 3549 return 0;
1bc012f6
TS		 3550}
3551
1c54ff97
AJ		 3552struct target_msginfo {
3553 int msgpool;
3554 int msgmap;
3555 int msgmax;
3556 int msgmnb;
3557 int msgmni;
3558 int msgssz;
3559 int msgtql;
3560 unsigned short int msgseg;
3561};
3562
3563static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3564 struct msginfo *host_msginfo)
3565{
3566 struct target_msginfo *target_msginfo;
3567 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3568 return -TARGET_EFAULT;
3569 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3570 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3571 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3572 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3573 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3574 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3575 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3576 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3577 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 3578 return 0;
1c54ff97
AJ		 3579}
3580
3581static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 3582{
3583 struct msqid_ds dsarg;
1c54ff97
AJ		 3584 struct msginfo msginfo;
3585 abi_long ret = -TARGET_EINVAL;
3586
3587 cmd &= 0xff;
3588
3589 switch (cmd) {
1bc012f6
TS		 3590 case IPC_STAT:
3591 case IPC_SET:
1c54ff97
AJ		 3592 case MSG_STAT:
3593 if (target_to_host_msqid_ds(&dsarg,ptr))
3594 return -TARGET_EFAULT;
3595 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3596 if (host_to_target_msqid_ds(ptr,&dsarg))
3597 return -TARGET_EFAULT;
3598 break;
3599 case IPC_RMID:
3600 ret = get_errno(msgctl(msgid, cmd, NULL));
3601 break;
3602 case IPC_INFO:
3603 case MSG_INFO:
3604 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3605 if (host_to_target_msginfo(ptr, &msginfo))
3606 return -TARGET_EFAULT;
3607 break;
1bc012f6 3608 }
1c54ff97 3609
1bc012f6
TS		 3610 return ret;
3611}
3612
3613struct target_msgbuf {
1c54ff97
AJ		 3614 abi_long mtype;
3615 char mtext[1];
1bc012f6
TS		 3616};
3617
992f48a0 3618static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 3619 ssize_t msgsz, int msgflg)
1bc012f6
TS		 3620{
3621 struct target_msgbuf *target_mb;
3622 struct msgbuf *host_mb;
992f48a0 3623 abi_long ret = 0;
1bc012f6 3624
edcc5f9d
TM		 3625 if (msgsz < 0) {
3626 return -TARGET_EINVAL;
3627 }
3628
579a97f7
FB		 3629 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3630 return -TARGET_EFAULT;
0e173b24 3631 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 3632 if (!host_mb) {
3633 unlock_user_struct(target_mb, msgp, 0);
3634 return -TARGET_ENOMEM;
3635 }
cbb21eed 3636 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 3637 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
89f9fe44 3638 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
0e173b24 3639 g_free(host_mb);
1bc012f6
TS		 3640 unlock_user_struct(target_mb, msgp, 0);
3641
3642 return ret;
3643}
3644
992f48a0 3645static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 3646 ssize_t msgsz, abi_long msgtyp,
992f48a0 3647 int msgflg)
1bc012f6
TS		 3648{
3649 struct target_msgbuf *target_mb;
579a97f7 3650 char *target_mtext;
1bc012f6 3651 struct msgbuf *host_mb;
992f48a0 3652 abi_long ret = 0;
1bc012f6 3653
99874f65
PM		 3654 if (msgsz < 0) {
3655 return -TARGET_EINVAL;
3656 }
3657
579a97f7
FB		 3658 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3659 return -TARGET_EFAULT;
1c54ff97 3660
415d8471
PM		 3661 host_mb = g_try_malloc(msgsz + sizeof(long));
3662 if (!host_mb) {
3663 ret = -TARGET_ENOMEM;
3664 goto end;
3665 }
89f9fe44 3666 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
1c54ff97 3667
579a97f7
FB		 3668 if (ret > 0) {
3669 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3670 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3671 if (!target_mtext) {
3672 ret = -TARGET_EFAULT;
3673 goto end;
3674 }
1c54ff97 3675 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 3676 unlock_user(target_mtext, target_mtext_addr, ret);
3677 }
1c54ff97 3678
cbb21eed 3679 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 3680
579a97f7
FB		 3681end:
3682 if (target_mb)
3683 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 3684 g_free(host_mb);
1bc012f6
TS		 3685 return ret;
3686}
3687
88a8c984
RV		 3688static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3689 abi_ulong target_addr)
3690{
3691 struct target_shmid_ds *target_sd;
3692
3693 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3694 return -TARGET_EFAULT;
3695 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3696 return -TARGET_EFAULT;
3697 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3698 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3699 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3700 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3701 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3702 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3703 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3704 unlock_user_struct(target_sd, target_addr, 0);
3705 return 0;
3706}
3707
3708static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3709 struct shmid_ds *host_sd)
3710{
3711 struct target_shmid_ds *target_sd;
3712
3713 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3714 return -TARGET_EFAULT;
3715 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3716 return -TARGET_EFAULT;
3717 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3718 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3719 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3720 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3721 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3722 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3723 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3724 unlock_user_struct(target_sd, target_addr, 1);
3725 return 0;
3726}
3727
3728struct target_shminfo {
3729 abi_ulong shmmax;
3730 abi_ulong shmmin;
3731 abi_ulong shmmni;
3732 abi_ulong shmseg;
3733 abi_ulong shmall;
3734};
3735
3736static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3737 struct shminfo *host_shminfo)
3738{
3739 struct target_shminfo *target_shminfo;
3740 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3741 return -TARGET_EFAULT;
3742 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3743 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3744 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3745 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3746 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3747 unlock_user_struct(target_shminfo, target_addr, 1);
3748 return 0;
3749}
3750
3751struct target_shm_info {
3752 int used_ids;
3753 abi_ulong shm_tot;
3754 abi_ulong shm_rss;
3755 abi_ulong shm_swp;
3756 abi_ulong swap_attempts;
3757 abi_ulong swap_successes;
3758};
3759
3760static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3761 struct shm_info *host_shm_info)
3762{
3763 struct target_shm_info *target_shm_info;
3764 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3765 return -TARGET_EFAULT;
3766 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3767 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3768 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3769 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3770 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3771 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3772 unlock_user_struct(target_shm_info, target_addr, 1);
3773 return 0;
3774}
3775
3776static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3777{
3778 struct shmid_ds dsarg;
3779 struct shminfo shminfo;
3780 struct shm_info shm_info;
3781 abi_long ret = -TARGET_EINVAL;
3782
3783 cmd &= 0xff;
3784
3785 switch(cmd) {
3786 case IPC_STAT:
3787 case IPC_SET:
3788 case SHM_STAT:
3789 if (target_to_host_shmid_ds(&dsarg, buf))
3790 return -TARGET_EFAULT;
3791 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3792 if (host_to_target_shmid_ds(buf, &dsarg))
3793 return -TARGET_EFAULT;
3794 break;
3795 case IPC_INFO:
3796 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3797 if (host_to_target_shminfo(buf, &shminfo))
3798 return -TARGET_EFAULT;
3799 break;
3800 case SHM_INFO:
3801 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3802 if (host_to_target_shm_info(buf, &shm_info))
3803 return -TARGET_EFAULT;
3804 break;
3805 case IPC_RMID:
3806 case SHM_LOCK:
3807 case SHM_UNLOCK:
3808 ret = get_errno(shmctl(shmid, cmd, NULL));
3809 break;
3810 }
3811
3812 return ret;
3813}
3814
ee8e7614
PM		 3815#ifndef TARGET_FORCE_SHMLBA
3816/* For most architectures, SHMLBA is the same as the page size;
3817 * some architectures have larger values, in which case they should
3818 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
3819 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
3820 * and defining its own value for SHMLBA.
3821 *
3822 * The kernel also permits SHMLBA to be set by the architecture to a
3823 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
3824 * this means that addresses are rounded to the large size if
3825 * SHM_RND is set but addresses not aligned to that size are not rejected
3826 * as long as they are at least page-aligned. Since the only architecture
3827 * which uses this is ia64 this code doesn't provide for that oddity.
3828 */
3829static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
3830{
3831 return TARGET_PAGE_SIZE;
3832}
3833#endif
3834
3835static inline abi_ulong do_shmat(CPUArchState *cpu_env,
3836 int shmid, abi_ulong shmaddr, int shmflg)
88a8c984
RV		 3837{
3838 abi_long raddr;
3839 void *host_raddr;
3840 struct shmid_ds shm_info;
3841 int i,ret;
ee8e7614 3842 abi_ulong shmlba;
88a8c984
RV		 3843
3844 /* find out the length of the shared memory segment */
3845 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
3846 if (is_error(ret)) {
3847 /* can't get length, bail out */
3848 return ret;
3849 }
3850
ee8e7614
PM		 3851 shmlba = target_shmlba(cpu_env);
3852
3853 if (shmaddr & (shmlba - 1)) {
3854 if (shmflg & SHM_RND) {
3855 shmaddr &= ~(shmlba - 1);
3856 } else {
3857 return -TARGET_EINVAL;
3858 }
3859 }
ebf9a363
MF		 3860 if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
3861 return -TARGET_EINVAL;
3862 }
ee8e7614 3863
88a8c984
RV		 3864 mmap_lock();
3865
3866 if (shmaddr)
3867 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
3868 else {
3869 abi_ulong mmap_start;
3870
3871 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
3872
3873 if (mmap_start == -1) {
3874 errno = ENOMEM;
3875 host_raddr = (void *)-1;
3876 } else
3877 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
3878 }
3879
3880 if (host_raddr == (void *)-1) {
3881 mmap_unlock();
3882 return get_errno((long)host_raddr);
3883 }
3884 raddr=h2g((unsigned long)host_raddr);
3885
3886 page_set_flags(raddr, raddr + shm_info.shm_segsz,
3887 PAGE_VALID | PAGE_READ |
3888 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
3889
3890 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 3891 if (!shm_regions[i].in_use) {
3892 shm_regions[i].in_use = true;
88a8c984
RV		 3893 shm_regions[i].start = raddr;
3894 shm_regions[i].size = shm_info.shm_segsz;
3895 break;
3896 }
3897 }
3898
3899 mmap_unlock();
3900 return raddr;
3901
3902}
3903
3904static inline abi_long do_shmdt(abi_ulong shmaddr)
3905{
3906 int i;
3c5f6a5f
MF		 3907 abi_long rv;
3908
3909 mmap_lock();
88a8c984
RV		 3910
3911 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 3912 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
3913 shm_regions[i].in_use = false;
e00ac249 3914 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 3915 break;
3916 }
3917 }
3c5f6a5f 3918 rv = get_errno(shmdt(g2h(shmaddr)));
88a8c984 3919
3c5f6a5f 3920 mmap_unlock();
88a8c984 3921
3c5f6a5f 3922 return rv;
88a8c984
RV		 3923}
3924
1c54ff97 3925#ifdef TARGET_NR_ipc
53a5960a 3926/* ??? This only works with linear mappings. */
0da46a6e 3927/* do_ipc() must return target values and target errnos. */
ee8e7614
PM		 3928static abi_long do_ipc(CPUArchState *cpu_env,
3929 unsigned int call, abi_long first,
37ed0956 3930 abi_long second, abi_long third,
992f48a0 3931 abi_long ptr, abi_long fifth)
8853f86e
FB		 3932{
3933 int version;
992f48a0 3934 abi_long ret = 0;
8853f86e
FB		 3935
3936 version = call >> 16;
3937 call &= 0xffff;
3938
3939 switch (call) {
fa294816 3940 case IPCOP_semop:
e5289087 3941 ret = do_semop(first, ptr, second);
fa294816
TS		 3942 break;
3943
3944 case IPCOP_semget:
3945 ret = get_errno(semget(first, second, third));
3946 break;
3947
5d2fa8eb
TM		 3948 case IPCOP_semctl: {
3949 /* The semun argument to semctl is passed by value, so dereference the
3950 * ptr argument. */
3951 abi_ulong atptr;
37ed0956 3952 get_user_ual(atptr, ptr);
d1c002b6 3953 ret = do_semctl(first, second, third, atptr);
fa294816 3954 break;
5d2fa8eb 3955 }
d96372ef 3956
1c54ff97
AJ		 3957 case IPCOP_msgget:
3958 ret = get_errno(msgget(first, second));
3959 break;
d96372ef 3960
1c54ff97
AJ		 3961 case IPCOP_msgsnd:
3962 ret = do_msgsnd(first, ptr, second, third);
3963 break;
d96372ef 3964
1c54ff97
AJ		 3965 case IPCOP_msgctl:
3966 ret = do_msgctl(first, second, ptr);
3967 break;
d96372ef 3968
1c54ff97
AJ		 3969 case IPCOP_msgrcv:
3970 switch (version) {
3971 case 0:
3972 {
3973 struct target_ipc_kludge {
3974 abi_long msgp;
3975 abi_long msgtyp;
3976 } *tmp;
3977
3978 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3979 ret = -TARGET_EFAULT;
3980 break;
3981 }
d96372ef 3982
79dd77de 3983 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 3984
1c54ff97
AJ		 3985 unlock_user_struct(tmp, ptr, 0);
3986 break;
3987 }
3988 default:
3989 ret = do_msgrcv(first, ptr, second, fifth, third);
3990 }
3991 break;
d96372ef 3992
8853f86e 3993 case IPCOP_shmat:
88a8c984
RV		 3994 switch (version) {
3995 default:
5a4a898d
FB		 3996 {
3997 abi_ulong raddr;
ee8e7614 3998 raddr = do_shmat(cpu_env, first, ptr, second);
88a8c984
RV		 3999 if (is_error(raddr))
4000 return get_errno(raddr);
2f619698 4001 if (put_user_ual(raddr, third))
5a4a898d 4002 return -TARGET_EFAULT;
88a8c984
RV		 4003 break;
4004 }
4005 case 1:
4006 ret = -TARGET_EINVAL;
4007 break;
5a4a898d 4008 }
8853f86e
FB		 4009 break;
4010 case IPCOP_shmdt:
88a8c984 4011 ret = do_shmdt(ptr);
8853f86e
FB		 4012 break;
4013
4014 case IPCOP_shmget:
4015 /* IPC_* flag values are the same on all linux platforms */
4016 ret = get_errno(shmget(first, second, third));
4017 break;
4018
4019 /* IPC_* and SHM_* command values are the same on all linux platforms */
4020 case IPCOP_shmctl:
a2926784 4021 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4022 break;
4023 default:
32407103 4024 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 4025 ret = -TARGET_ENOSYS;
8853f86e
FB		 4026 break;
4027 }
4028 return ret;
4029}
32407103 4030#endif
8853f86e 4031
31e31b8a 4032/* kernel structure types definitions */
31e31b8a 4033
001faf32 4034#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4035#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4036enum {
4037#include "syscall_types.h"
8be656b8 4038STRUCT_MAX
31e31b8a
FB		 4039};
4040#undef STRUCT
4041#undef STRUCT_SPECIAL
4042
001faf32 4043#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4044#define STRUCT_SPECIAL(name)
4045#include "syscall_types.h"
4046#undef STRUCT
4047#undef STRUCT_SPECIAL
4048
d2ef05bb
PM		 4049typedef struct IOCTLEntry IOCTLEntry;
4050
4051typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4052 int fd, int cmd, abi_long arg);
d2ef05bb
PM		 4053
4054struct IOCTLEntry {
9c6bf9c7 4055 int target_cmd;
2ab83ea7 4056 unsigned int host_cmd;
31e31b8a
FB		 4057 const char *name;
4058 int access;
d2ef05bb 4059 do_ioctl_fn *do_ioctl;
1a9353d2 4060 const argtype arg_type[5];
d2ef05bb 4061};
31e31b8a
FB		 4062
4063#define IOC_R 0x0001
4064#define IOC_W 0x0002
4065#define IOC_RW (IOC_R | IOC_W)
4066
4067#define MAX_STRUCT_SIZE 4096
4068
dace20dc 4069#ifdef CONFIG_FIEMAP
285da2b9
PM		 4070/* So fiemap access checks don't overflow on 32 bit systems.
4071 * This is very slightly smaller than the limit imposed by
4072 * the underlying kernel.
4073 */
4074#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4075 / sizeof(struct fiemap_extent))
4076
4077static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4078 int fd, int cmd, abi_long arg)
285da2b9
PM		 4079{
4080 /* The parameter for this ioctl is a struct fiemap followed
4081 * by an array of struct fiemap_extent whose size is set
4082 * in fiemap->fm_extent_count. The array is filled in by the
4083 * ioctl.
4084 */
4085 int target_size_in, target_size_out;
4086 struct fiemap *fm;
4087 const argtype *arg_type = ie->arg_type;
4088 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4089 void *argptr, *p;
4090 abi_long ret;
4091 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4092 uint32_t outbufsz;
4093 int free_fm = 0;
4094
4095 assert(arg_type[0] == TYPE_PTR);
4096 assert(ie->access == IOC_RW);
4097 arg_type++;
4098 target_size_in = thunk_type_size(arg_type, 0);
4099 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4100 if (!argptr) {
4101 return -TARGET_EFAULT;
4102 }
4103 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4104 unlock_user(argptr, arg, 0);
4105 fm = (struct fiemap *)buf_temp;
4106 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4107 return -TARGET_EINVAL;
4108 }
4109
4110 outbufsz = sizeof (*fm) +
4111 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4112
4113 if (outbufsz > MAX_STRUCT_SIZE) {
4114 /* We can't fit all the extents into the fixed size buffer.
4115 * Allocate one that is large enough and use it instead.
4116 */
0e173b24 4117 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4118 if (!fm) {
4119 return -TARGET_ENOMEM;
4120 }
4121 memcpy(fm, buf_temp, sizeof(struct fiemap));
4122 free_fm = 1;
4123 }
49ca6f3e 4124 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
285da2b9
PM		 4125 if (!is_error(ret)) {
4126 target_size_out = target_size_in;
4127 /* An extent_count of 0 means we were only counting the extents
4128 * so there are no structs to copy
4129 */
4130 if (fm->fm_extent_count != 0) {
4131 target_size_out += fm->fm_mapped_extents * extent_size;
4132 }
4133 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4134 if (!argptr) {
4135 ret = -TARGET_EFAULT;
4136 } else {
4137 /* Convert the struct fiemap */
4138 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4139 if (fm->fm_extent_count != 0) {
4140 p = argptr + target_size_in;
4141 /* ...and then all the struct fiemap_extents */
4142 for (i = 0; i < fm->fm_mapped_extents; i++) {
4143 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4144 THUNK_TARGET);
4145 p += extent_size;
4146 }
4147 }
4148 unlock_user(argptr, arg, target_size_out);
4149 }
4150 }
4151 if (free_fm) {
0e173b24 4152 g_free(fm);
285da2b9
PM		 4153 }
4154 return ret;
4155}
dace20dc 4156#endif
285da2b9 4157
059c2f2c 4158static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4159 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4160{
4161 const argtype *arg_type = ie->arg_type;
4162 int target_size;
4163 void *argptr;
4164 int ret;
4165 struct ifconf *host_ifconf;
4166 uint32_t outbufsz;
4167 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4168 int target_ifreq_size;
4169 int nb_ifreq;
4170 int free_buf = 0;
4171 int i;
4172 int target_ifc_len;
4173 abi_long target_ifc_buf;
4174 int host_ifc_len;
4175 char *host_ifc_buf;
4176
4177 assert(arg_type[0] == TYPE_PTR);
4178 assert(ie->access == IOC_RW);
4179
4180 arg_type++;
4181 target_size = thunk_type_size(arg_type, 0);
4182
4183 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4184 if (!argptr)
4185 return -TARGET_EFAULT;
4186 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4187 unlock_user(argptr, arg, 0);
4188
4189 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
059c2f2c 4190 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
059c2f2c 4191 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
059c2f2c 4192
22e4a267
KL		 4193 if (target_ifc_buf != 0) {
4194 target_ifc_len = host_ifconf->ifc_len;
4195 nb_ifreq = target_ifc_len / target_ifreq_size;
4196 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4197
4198 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4199 if (outbufsz > MAX_STRUCT_SIZE) {
4200 /*
4201 * We can't fit all the extents into the fixed size buffer.
4202 * Allocate one that is large enough and use it instead.
4203 */
4204 host_ifconf = malloc(outbufsz);
4205 if (!host_ifconf) {
4206 return -TARGET_ENOMEM;
4207 }
4208 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4209 free_buf = 1;
059c2f2c 4210 }
22e4a267 4211 host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
059c2f2c 4212
22e4a267
KL		 4213 host_ifconf->ifc_len = host_ifc_len;
4214 } else {
4215 host_ifc_buf = NULL;
4216 }
059c2f2c
LV		 4217 host_ifconf->ifc_buf = host_ifc_buf;
4218
49ca6f3e 4219 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
059c2f2c
LV		 4220 if (!is_error(ret)) {
4221 /* convert host ifc_len to target ifc_len */
4222
4223 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4224 target_ifc_len = nb_ifreq * target_ifreq_size;
4225 host_ifconf->ifc_len = target_ifc_len;
4226
4227 /* restore target ifc_buf */
4228
4229 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4230
4231 /* copy struct ifconf to target user */
4232
4233 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4234 if (!argptr)
4235 return -TARGET_EFAULT;
4236 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4237 unlock_user(argptr, arg, target_size);
4238
22e4a267
KL		 4239 if (target_ifc_buf != 0) {
4240 /* copy ifreq[] to target user */
4241 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4242 for (i = 0; i < nb_ifreq ; i++) {
4243 thunk_convert(argptr + i * target_ifreq_size,
4244 host_ifc_buf + i * sizeof(struct ifreq),
4245 ifreq_arg_type, THUNK_TARGET);
4246 }
4247 unlock_user(argptr, target_ifc_buf, target_ifc_len);
059c2f2c 4248 }
059c2f2c
LV		 4249 }
4250
4251 if (free_buf) {
4252 free(host_ifconf);
4253 }
4254
4255 return ret;
4256}
4257
a133367e
CT		 4258#if defined(CONFIG_USBFS)
4259#if HOST_LONG_BITS > 64
4260#error USBDEVFS thunks do not support >64 bit hosts yet.
4261#endif
4262struct live_urb {
4263 uint64_t target_urb_adr;
4264 uint64_t target_buf_adr;
4265 char *target_buf_ptr;
4266 struct usbdevfs_urb host_urb;
4267};
4268
4269static GHashTable *usbdevfs_urb_hashtable(void)
4270{
4271 static GHashTable *urb_hashtable;
4272
4273 if (!urb_hashtable) {
4274 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
4275 }
4276 return urb_hashtable;
4277}
4278
4279static void urb_hashtable_insert(struct live_urb *urb)
4280{
4281 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4282 g_hash_table_insert(urb_hashtable, urb, urb);
4283}
4284
4285static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
4286{
4287 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4288 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
4289}
4290
4291static void urb_hashtable_remove(struct live_urb *urb)
4292{
4293 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4294 g_hash_table_remove(urb_hashtable, urb);
4295}
4296
4297static abi_long
4298do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
4299 int fd, int cmd, abi_long arg)
4300{
4301 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
4302 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
4303 struct live_urb *lurb;
4304 void *argptr;
4305 uint64_t hurb;
4306 int target_size;
4307 uintptr_t target_urb_adr;
4308 abi_long ret;
4309
4310 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
4311
4312 memset(buf_temp, 0, sizeof(uint64_t));
4313 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4314 if (is_error(ret)) {
4315 return ret;
4316 }
4317
4318 memcpy(&hurb, buf_temp, sizeof(uint64_t));
4319 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
4320 if (!lurb->target_urb_adr) {
4321 return -TARGET_EFAULT;
4322 }
4323 urb_hashtable_remove(lurb);
4324 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
4325 lurb->host_urb.buffer_length);
4326 lurb->target_buf_ptr = NULL;
4327
4328 /* restore the guest buffer pointer */
4329 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
4330
4331 /* update the guest urb struct */
4332 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
4333 if (!argptr) {
4334 g_free(lurb);
4335 return -TARGET_EFAULT;
4336 }
4337 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
4338 unlock_user(argptr, lurb->target_urb_adr, target_size);
4339
4340 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
4341 /* write back the urb handle */
4342 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4343 if (!argptr) {
4344 g_free(lurb);
4345 return -TARGET_EFAULT;
4346 }
4347
4348 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
4349 target_urb_adr = lurb->target_urb_adr;
4350 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
4351 unlock_user(argptr, arg, target_size);
4352
4353 g_free(lurb);
4354 return ret;
4355}
4356
4357static abi_long
4358do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
4359 uint8_t *buf_temp __attribute__((unused)),
4360 int fd, int cmd, abi_long arg)
4361{
4362 struct live_urb *lurb;
4363
4364 /* map target address back to host URB with metadata. */
4365 lurb = urb_hashtable_lookup(arg);
4366 if (!lurb) {
4367 return -TARGET_EFAULT;
4368 }
4369 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4370}
4371
4372static abi_long
4373do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
4374 int fd, int cmd, abi_long arg)
4375{
4376 const argtype *arg_type = ie->arg_type;
4377 int target_size;
4378 abi_long ret;
4379 void *argptr;
4380 int rw_dir;
4381 struct live_urb *lurb;
4382
4383 /*
4384 * each submitted URB needs to map to a unique ID for the
4385 * kernel, and that unique ID needs to be a pointer to
4386 * host memory. hence, we need to malloc for each URB.
4387 * isochronous transfers have a variable length struct.
4388 */
4389 arg_type++;
4390 target_size = thunk_type_size(arg_type, THUNK_TARGET);
4391
4392 /* construct host copy of urb and metadata */
4393 lurb = g_try_malloc0(sizeof(struct live_urb));
4394 if (!lurb) {
4395 return -TARGET_ENOMEM;
4396 }
4397
4398 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4399 if (!argptr) {
4400 g_free(lurb);
4401 return -TARGET_EFAULT;
4402 }
4403 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
4404 unlock_user(argptr, arg, 0);
4405
4406 lurb->target_urb_adr = arg;
4407 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
4408
4409 /* buffer space used depends on endpoint type so lock the entire buffer */
4410 /* control type urbs should check the buffer contents for true direction */
4411 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
4412 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
4413 lurb->host_urb.buffer_length, 1);
4414 if (lurb->target_buf_ptr == NULL) {
4415 g_free(lurb);
4416 return -TARGET_EFAULT;
4417 }
4418
4419 /* update buffer pointer in host copy */
4420 lurb->host_urb.buffer = lurb->target_buf_ptr;
4421
4422 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4423 if (is_error(ret)) {
4424 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
4425 g_free(lurb);
4426 } else {
4427 urb_hashtable_insert(lurb);
4428 }
4429
4430 return ret;
4431}
4432#endif /* CONFIG_USBFS */
4433
56e904ec 4434static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4435 int cmd, abi_long arg)
56e904ec
AG		 4436{
4437 void *argptr;
4438 struct dm_ioctl *host_dm;
4439 abi_long guest_data;
4440 uint32_t guest_data_size;
4441 int target_size;
4442 const argtype *arg_type = ie->arg_type;
4443 abi_long ret;
4444 void *big_buf = NULL;
4445 char *host_data;
4446
4447 arg_type++;
4448 target_size = thunk_type_size(arg_type, 0);
4449 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4450 if (!argptr) {
4451 ret = -TARGET_EFAULT;
4452 goto out;
4453 }
4454 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4455 unlock_user(argptr, arg, 0);
4456
4457 /* buf_temp is too small, so fetch things into a bigger buffer */
4458 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4459 memcpy(big_buf, buf_temp, target_size);
4460 buf_temp = big_buf;
4461 host_dm = big_buf;
4462
4463 guest_data = arg + host_dm->data_start;
4464 if ((guest_data - arg) < 0) {
f9757b1d 4465 ret = -TARGET_EINVAL;
56e904ec
AG		 4466 goto out;
4467 }
4468 guest_data_size = host_dm->data_size - host_dm->data_start;
4469 host_data = (char*)host_dm + host_dm->data_start;
4470
4471 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3211215e
PM		 4472 if (!argptr) {
4473 ret = -TARGET_EFAULT;
4474 goto out;
4475 }
4476
56e904ec
AG		 4477 switch (ie->host_cmd) {
4478 case DM_REMOVE_ALL:
4479 case DM_LIST_DEVICES:
4480 case DM_DEV_CREATE:
4481 case DM_DEV_REMOVE:
4482 case DM_DEV_SUSPEND:
4483 case DM_DEV_STATUS:
4484 case DM_DEV_WAIT:
4485 case DM_TABLE_STATUS:
4486 case DM_TABLE_CLEAR:
4487 case DM_TABLE_DEPS:
4488 case DM_LIST_VERSIONS:
4489 /* no input data */
4490 break;
4491 case DM_DEV_RENAME:
4492 case DM_DEV_SET_GEOMETRY:
4493 /* data contains only strings */
4494 memcpy(host_data, argptr, guest_data_size);
4495 break;
4496 case DM_TARGET_MSG:
4497 memcpy(host_data, argptr, guest_data_size);
4498 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4499 break;
4500 case DM_TABLE_LOAD:
4501 {
4502 void *gspec = argptr;
4503 void *cur_data = host_data;
4504 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4505 int spec_size = thunk_type_size(arg_type, 0);
4506 int i;
4507
4508 for (i = 0; i < host_dm->target_count; i++) {
4509 struct dm_target_spec *spec = cur_data;
4510 uint32_t next;
4511 int slen;
4512
4513 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4514 slen = strlen((char*)gspec + spec_size) + 1;
4515 next = spec->next;
4516 spec->next = sizeof(*spec) + slen;
4517 strcpy((char*)&spec[1], gspec + spec_size);
4518 gspec += next;
4519 cur_data += spec->next;
4520 }
4521 break;
4522 }
4523 default:
4524 ret = -TARGET_EINVAL;
dec0473d 4525 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4526 goto out;
4527 }
4528 unlock_user(argptr, guest_data, 0);
4529
49ca6f3e 4530 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
56e904ec
AG		 4531 if (!is_error(ret)) {
4532 guest_data = arg + host_dm->data_start;
4533 guest_data_size = host_dm->data_size - host_dm->data_start;
4534 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4535 switch (ie->host_cmd) {
4536 case DM_REMOVE_ALL:
4537 case DM_DEV_CREATE:
4538 case DM_DEV_REMOVE:
4539 case DM_DEV_RENAME:
4540 case DM_DEV_SUSPEND:
4541 case DM_DEV_STATUS:
4542 case DM_TABLE_LOAD:
4543 case DM_TABLE_CLEAR:
4544 case DM_TARGET_MSG:
4545 case DM_DEV_SET_GEOMETRY:
4546 /* no return data */
4547 break;
4548 case DM_LIST_DEVICES:
4549 {
4550 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4551 uint32_t remaining_data = guest_data_size;
4552 void *cur_data = argptr;
4553 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4554 int nl_size = 12; /* can't use thunk_size due to alignment */
4555
4556 while (1) {
4557 uint32_t next = nl->next;
4558 if (next) {
4559 nl->next = nl_size + (strlen(nl->name) + 1);
4560 }
4561 if (remaining_data < nl->next) {
4562 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4563 break;
4564 }
4565 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4566 strcpy(cur_data + nl_size, nl->name);
4567 cur_data += nl->next;
4568 remaining_data -= nl->next;
4569 if (!next) {
4570 break;
4571 }
4572 nl = (void*)nl + next;
4573 }
4574 break;
4575 }
4576 case DM_DEV_WAIT:
4577 case DM_TABLE_STATUS:
4578 {
4579 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4580 void *cur_data = argptr;
4581 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4582 int spec_size = thunk_type_size(arg_type, 0);
4583 int i;
4584
4585 for (i = 0; i < host_dm->target_count; i++) {
4586 uint32_t next = spec->next;
4587 int slen = strlen((char*)&spec[1]) + 1;
4588 spec->next = (cur_data - argptr) + spec_size + slen;
4589 if (guest_data_size < spec->next) {
4590 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4591 break;
4592 }
4593 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4594 strcpy(cur_data + spec_size, (char*)&spec[1]);
4595 cur_data = argptr + spec->next;
4596 spec = (void*)host_dm + host_dm->data_start + next;
4597 }
4598 break;
4599 }
4600 case DM_TABLE_DEPS:
4601 {
4602 void *hdata = (void*)host_dm + host_dm->data_start;
4603 int count = *(uint32_t*)hdata;
4604 uint64_t *hdev = hdata + 8;
4605 uint64_t *gdev = argptr + 8;
4606 int i;
4607
4608 *(uint32_t*)argptr = tswap32(count);
4609 for (i = 0; i < count; i++) {
4610 *gdev = tswap64(*hdev);
4611 gdev++;
4612 hdev++;
4613 }
4614 break;
4615 }
4616 case DM_LIST_VERSIONS:
4617 {
4618 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4619 uint32_t remaining_data = guest_data_size;
4620 void *cur_data = argptr;
4621 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4622 int vers_size = thunk_type_size(arg_type, 0);
4623
4624 while (1) {
4625 uint32_t next = vers->next;
4626 if (next) {
4627 vers->next = vers_size + (strlen(vers->name) + 1);
4628 }
4629 if (remaining_data < vers->next) {
4630 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4631 break;
4632 }
4633 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4634 strcpy(cur_data + vers_size, vers->name);
4635 cur_data += vers->next;
4636 remaining_data -= vers->next;
4637 if (!next) {
4638 break;
4639 }
4640 vers = (void*)vers + next;
4641 }
4642 break;
4643 }
4644 default:
dec0473d 4645 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4646 ret = -TARGET_EINVAL;
4647 goto out;
4648 }
4649 unlock_user(argptr, guest_data, guest_data_size);
4650
4651 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4652 if (!argptr) {
4653 ret = -TARGET_EFAULT;
4654 goto out;
4655 }
4656 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4657 unlock_user(argptr, arg, target_size);
4658 }
4659out:
ad11ad77 4660 g_free(big_buf);
56e904ec
AG		 4661 return ret;
4662}
4663
a59b5e35 4664static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4665 int cmd, abi_long arg)
a59b5e35
AG		 4666{
4667 void *argptr;
4668 int target_size;
4669 const argtype *arg_type = ie->arg_type;
4670 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4671 abi_long ret;
4672
4673 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4674 struct blkpg_partition host_part;
4675
4676 /* Read and convert blkpg */
4677 arg_type++;
4678 target_size = thunk_type_size(arg_type, 0);
4679 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4680 if (!argptr) {
4681 ret = -TARGET_EFAULT;
4682 goto out;
4683 }
4684 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4685 unlock_user(argptr, arg, 0);
4686
4687 switch (host_blkpg->op) {
4688 case BLKPG_ADD_PARTITION:
4689 case BLKPG_DEL_PARTITION:
4690 /* payload is struct blkpg_partition */
4691 break;
4692 default:
4693 /* Unknown opcode */
4694 ret = -TARGET_EINVAL;
4695 goto out;
4696 }
4697
4698 /* Read and convert blkpg->data */
4699 arg = (abi_long)(uintptr_t)host_blkpg->data;
4700 target_size = thunk_type_size(part_arg_type, 0);
4701 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4702 if (!argptr) {
4703 ret = -TARGET_EFAULT;
4704 goto out;
4705 }
4706 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4707 unlock_user(argptr, arg, 0);
4708
4709 /* Swizzle the data pointer to our local copy and call! */
4710 host_blkpg->data = &host_part;
49ca6f3e 4711 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
a59b5e35
AG		 4712
4713out:
4714 return ret;
4715}
4716
7ff7b666 4717static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4718 int fd, int cmd, abi_long arg)
7ff7b666
LV		 4719{
4720 const argtype *arg_type = ie->arg_type;
4721 const StructEntry *se;
4722 const argtype *field_types;
4723 const int *dst_offsets, *src_offsets;
4724 int target_size;
4725 void *argptr;
4726 abi_ulong *target_rt_dev_ptr;
4727 unsigned long *host_rt_dev_ptr;
4728 abi_long ret;
4729 int i;
4730
4731 assert(ie->access == IOC_W);
4732 assert(*arg_type == TYPE_PTR);
4733 arg_type++;
4734 assert(*arg_type == TYPE_STRUCT);
4735 target_size = thunk_type_size(arg_type, 0);
4736 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4737 if (!argptr) {
4738 return -TARGET_EFAULT;
4739 }
4740 arg_type++;
4741 assert(*arg_type == (int)STRUCT_rtentry);
4742 se = struct_entries + *arg_type++;
4743 assert(se->convert[0] == NULL);
4744 /* convert struct here to be able to catch rt_dev string */
4745 field_types = se->field_types;
4746 dst_offsets = se->field_offsets[THUNK_HOST];
4747 src_offsets = se->field_offsets[THUNK_TARGET];
4748 for (i = 0; i < se->nb_fields; i++) {
4749 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4750 assert(*field_types == TYPE_PTRVOID);
4751 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4752 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4753 if (*target_rt_dev_ptr != 0) {
4754 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4755 tswapal(*target_rt_dev_ptr));
4756 if (!*host_rt_dev_ptr) {
4757 unlock_user(argptr, arg, 0);
4758 return -TARGET_EFAULT;
4759 }
4760 } else {
4761 *host_rt_dev_ptr = 0;
4762 }
4763 field_types++;
4764 continue;
4765 }
4766 field_types = thunk_convert(buf_temp + dst_offsets[i],
4767 argptr + src_offsets[i],
4768 field_types, THUNK_HOST);
4769 }
4770 unlock_user(argptr, arg, 0);
4771
49ca6f3e 4772 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
7ff7b666
LV		 4773 if (*host_rt_dev_ptr != 0) {
4774 unlock_user((void *)*host_rt_dev_ptr,
4775 *target_rt_dev_ptr, 0);
4776 }
4777 return ret;
4778}
4779
ca56f5b5 4780static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4781 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 4782{
4783 int sig = target_to_host_signal(arg);
49ca6f3e 4784 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
ca56f5b5
PB		 4785}
4786
2b74f621
AS		 4787#ifdef TIOCGPTPEER
4788static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
4789 int fd, int cmd, abi_long arg)
4790{
4791 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
4792 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
4793}
4794#endif
4795
9f106a75 4796static IOCTLEntry ioctl_entries[] = {
001faf32 4797#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 4798 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
4799#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
4800 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
8cb762fe
HD		 4801#define IOCTL_IGNORE(cmd) \
4802 { TARGET_ ## cmd, 0, #cmd },
31e31b8a
FB		 4803#include "ioctls.h"
4804 { 0, 0, },
4805};
4806
53a5960a 4807/* ??? Implement proper locking for ioctls. */
0da46a6e 4808/* do_ioctl() Must return target values and target errnos. */
45c874eb 4809static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 4810{
4811 const IOCTLEntry *ie;
4812 const argtype *arg_type;
992f48a0 4813 abi_long ret;
31e31b8a 4814 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 4815 int target_size;
4816 void *argptr;
31e31b8a
FB		 4817
4818 ie = ioctl_entries;
4819 for(;;) {
4820 if (ie->target_cmd == 0) {
32407103 4821 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 4822 return -TARGET_ENOSYS;
31e31b8a
FB		 4823 }
4824 if (ie->target_cmd == cmd)
4825 break;
4826 ie++;
4827 }
4828 arg_type = ie->arg_type;
d2ef05bb
PM		 4829 if (ie->do_ioctl) {
4830 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
8cb762fe
HD		 4831 } else if (!ie->host_cmd) {
4832 /* Some architectures define BSD ioctls in their headers
4833 that are not implemented in Linux. */
4834 return -TARGET_ENOSYS;
d2ef05bb
PM		 4835 }
4836
31e31b8a
FB		 4837 switch(arg_type[0]) {
4838 case TYPE_NULL:
4839 /* no argument */
49ca6f3e 4840 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
31e31b8a
FB		 4841 break;
4842 case TYPE_PTRVOID:
4843 case TYPE_INT:
49ca6f3e 4844 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
31e31b8a
FB		 4845 break;
4846 case TYPE_PTR:
4847 arg_type++;
53a5960a 4848 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 4849 switch(ie->access) {
4850 case IOC_R:
49ca6f3e 4851 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4852 if (!is_error(ret)) {
579a97f7
FB		 4853 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4854 if (!argptr)
4855 return -TARGET_EFAULT;
53a5960a
PB		 4856 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4857 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4858 }
4859 break;
4860 case IOC_W:
579a97f7
FB		 4861 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4862 if (!argptr)
4863 return -TARGET_EFAULT;
53a5960a
PB		 4864 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4865 unlock_user(argptr, arg, 0);
49ca6f3e 4866 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a
FB		 4867 break;
4868 default:
4869 case IOC_RW:
579a97f7
FB		 4870 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4871 if (!argptr)
4872 return -TARGET_EFAULT;
53a5960a
PB		 4873 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4874 unlock_user(argptr, arg, 0);
49ca6f3e 4875 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4876 if (!is_error(ret)) {
579a97f7
FB		 4877 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4878 if (!argptr)
4879 return -TARGET_EFAULT;
53a5960a
PB		 4880 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4881 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4882 }
4883 break;
4884 }
4885 break;
4886 default:
32407103
JM		 4887 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
4888 (long)cmd, arg_type[0]);
0da46a6e 4889 ret = -TARGET_ENOSYS;
31e31b8a
FB		 4890 break;
4891 }
4892 return ret;
4893}
4894
b39bc503 4895static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 4896 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
4897 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
4898 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
4899 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
4900 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
4901 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
4902 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
4903 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
4904 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
4905 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
4906 { TARGET_IXON, TARGET_IXON, IXON, IXON },
4907 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
4908 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
4909 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
4910 { 0, 0, 0, 0 }
4911};
4912
b39bc503 4913static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 4914 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
4915 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
4916 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
4917 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
4918 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
4919 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
4920 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
4921 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
4922 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
4923 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
4924 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
4925 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
4926 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
4927 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
4928 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
4929 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
4930 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
4931 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
4932 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
4933 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
4934 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
4935 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
4936 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
4937 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
4938 { 0, 0, 0, 0 }
4939};
4940
b39bc503 4941static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 4942 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
4943 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
4944 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
4945 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
4946 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
4947 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
4948 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
4949 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
4950 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
4951 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
4952 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
4953 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
4954 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
4955 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
4956 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
4957 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
4958 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
4959 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
4960 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
4961 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
4962 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
4963 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
4964 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
4965 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
4966 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
4967 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
4968 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
4969 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
4970 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
4971 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
4972 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
4973 { 0, 0, 0, 0 }
4974};
4975
b39bc503 4976static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 4977 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
4978 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
4979 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
4980 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
4981 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
4982 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
4983 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
4984 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
4985 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
4986 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
4987 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
4988 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
4989 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
4990 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
4991 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
4992 { 0, 0, 0, 0 }
4993};
4994
4995static void target_to_host_termios (void *dst, const void *src)
4996{
4997 struct host_termios *host = dst;
4998 const struct target_termios *target = src;
3b46e624 4999
5fafdf24 5000 host->c_iflag =
31e31b8a 5001 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 5002 host->c_oflag =
31e31b8a 5003 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 5004 host->c_cflag =
31e31b8a 5005 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 5006 host->c_lflag =
31e31b8a
FB		 5007 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
5008 host->c_line = target->c_line;
3b46e624 5009
44607123 5010 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 5011 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
5012 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 5013 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 5014 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 5015 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 5016 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 5017 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 5018 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 5019 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 5020 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
5021 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 5022 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
5023 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
5024 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
5025 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
5026 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 5027 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 5028}
3b46e624 5029
31e31b8a
FB		 5030static void host_to_target_termios (void *dst, const void *src)
5031{
5032 struct target_termios *target = dst;
5033 const struct host_termios *host = src;
5034
5fafdf24 5035 target->c_iflag =
31e31b8a 5036 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 5037 target->c_oflag =
31e31b8a 5038 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 5039 target->c_cflag =
31e31b8a 5040 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 5041 target->c_lflag =
31e31b8a
FB		 5042 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
5043 target->c_line = host->c_line;
3b46e624 5044
44607123 5045 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 5046 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
5047 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
5048 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
5049 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
5050 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
5051 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
5052 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
5053 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
5054 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
5055 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
5056 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
5057 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
5058 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
5059 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
5060 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
5061 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
5062 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
5063}
5064
8e853dc7 5065static const StructEntry struct_termios_def = {
31e31b8a
FB		 5066 .convert = { host_to_target_termios, target_to_host_termios },
5067 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
5068 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
5069};
5070
5286db75 5071static bitmask_transtbl mmap_flags_tbl[] = {
541e1690
HD		 5072 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
5073 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
5074 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
5075 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
5076 MAP_ANONYMOUS, MAP_ANONYMOUS },
5077 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
5078 MAP_GROWSDOWN, MAP_GROWSDOWN },
5079 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
5080 MAP_DENYWRITE, MAP_DENYWRITE },
5081 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
5082 MAP_EXECUTABLE, MAP_EXECUTABLE },
5083 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
5084 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
5085 MAP_NORESERVE, MAP_NORESERVE },
5086 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
5087 /* MAP_STACK had been ignored by the kernel for quite some time.
5088 Recognize it for the target insofar as we do not want to pass
5089 it through to the host. */
5090 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
5091 { 0, 0, 0, 0 }
5286db75
FB		 5092};
5093
2ab83ea7 5094#if defined(TARGET_I386)
6dbad63e
FB		 5095
5096/* NOTE: there is really one LDT for all the threads */
b1d8e52e 5097static uint8_t *ldt_table;
6dbad63e 5098
03acab66 5099static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 5100{
5101 int size;
53a5960a 5102 void *p;
6dbad63e
FB		 5103
5104 if (!ldt_table)
5105 return 0;
5106 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5107 if (size > bytecount)
5108 size = bytecount;
579a97f7
FB		 5109 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5110 if (!p)
03acab66 5111 return -TARGET_EFAULT;
579a97f7 5112 /* ??? Should this by byteswapped? */
53a5960a
PB		 5113 memcpy(p, ldt_table, size);
5114 unlock_user(p, ptr, size);
6dbad63e
FB		 5115 return size;
5116}
5117
5118/* XXX: add locking support */
03acab66
FB		 5119static abi_long write_ldt(CPUX86State *env,
5120 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 5121{
5122 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 5123 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 5124 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 5125 int seg_not_present, useable, lm;
6dbad63e
FB		 5126 uint32_t *lp, entry_1, entry_2;
5127
5128 if (bytecount != sizeof(ldt_info))
03acab66 5129 return -TARGET_EINVAL;
579a97f7 5130 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 5131 return -TARGET_EFAULT;
53a5960a 5132 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5133 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 5134 ldt_info.limit = tswap32(target_ldt_info->limit);
5135 ldt_info.flags = tswap32(target_ldt_info->flags);
5136 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 5137
6dbad63e 5138 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 5139 return -TARGET_EINVAL;
6dbad63e
FB		 5140 seg_32bit = ldt_info.flags & 1;
5141 contents = (ldt_info.flags >> 1) & 3;
5142 read_exec_only = (ldt_info.flags >> 3) & 1;
5143 limit_in_pages = (ldt_info.flags >> 4) & 1;
5144 seg_not_present = (ldt_info.flags >> 5) & 1;
5145 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 5146#ifdef TARGET_ABI32
5147 lm = 0;
5148#else
5149 lm = (ldt_info.flags >> 7) & 1;
5150#endif
6dbad63e
FB		 5151 if (contents == 3) {
5152 if (oldmode)
03acab66 5153 return -TARGET_EINVAL;
6dbad63e 5154 if (seg_not_present == 0)
03acab66 5155 return -TARGET_EINVAL;
6dbad63e
FB		 5156 }
5157 /* allocate the LDT */
5158 if (!ldt_table) {
e441570f
AZ		 5159 env->ldt.base = target_mmap(0,
5160 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5161 PROT_READ|PROT_WRITE,
5162 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5163 if (env->ldt.base == -1)
03acab66 5164 return -TARGET_ENOMEM;
e441570f
AZ		 5165 memset(g2h(env->ldt.base), 0,
5166 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 5167 env->ldt.limit = 0xffff;
e441570f 5168 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 5169 }
5170
5171 /* NOTE: same code as Linux kernel */
5172 /* Allow LDTs to be cleared by the user. */
5173 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5174 if (oldmode ||
5175 (contents == 0 &&
5176 read_exec_only == 1 &&
5177 seg_32bit == 0 &&
5178 limit_in_pages == 0 &&
5179 seg_not_present == 1 &&
5180 useable == 0 )) {
5181 entry_1 = 0;
5182 entry_2 = 0;
5183 goto install;
5184 }
5185 }
3b46e624 5186
6dbad63e
FB		 5187 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5188 (ldt_info.limit & 0x0ffff);
5189 entry_2 = (ldt_info.base_addr & 0xff000000) |
5190 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5191 (ldt_info.limit & 0xf0000) |
5192 ((read_exec_only ^ 1) << 9) |
5193 (contents << 10) |
5194 ((seg_not_present ^ 1) << 15) |
5195 (seg_32bit << 22) |
5196 (limit_in_pages << 23) |
8d18e893 5197 (lm << 21) |
6dbad63e
FB		 5198 0x7000;
5199 if (!oldmode)
5200 entry_2 |= (useable << 20);
14ae3ba7 5201
6dbad63e
FB		 5202 /* Install the new entry ... */
5203install:
5204 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5205 lp[0] = tswap32(entry_1);
5206 lp[1] = tswap32(entry_2);
5207 return 0;
5208}
5209
5210/* specific and weird i386 syscalls */
8fcd3692
BS		 5211static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5212 unsigned long bytecount)
6dbad63e 5213{
03acab66 5214 abi_long ret;
3b46e624 5215
6dbad63e
FB		 5216 switch (func) {
5217 case 0:
5218 ret = read_ldt(ptr, bytecount);
5219 break;
5220 case 1:
5221 ret = write_ldt(env, ptr, bytecount, 1);
5222 break;
5223 case 0x11:
5224 ret = write_ldt(env, ptr, bytecount, 0);
5225 break;
03acab66
FB		 5226 default:
5227 ret = -TARGET_ENOSYS;
5228 break;
6dbad63e
FB		 5229 }
5230 return ret;
5231}
1b6b029e 5232
4583f589 5233#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 5234abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5235{
5236 uint64_t *gdt_table = g2h(env->gdt.base);
5237 struct target_modify_ldt_ldt_s ldt_info;
5238 struct target_modify_ldt_ldt_s *target_ldt_info;
5239 int seg_32bit, contents, read_exec_only, limit_in_pages;
5240 int seg_not_present, useable, lm;
5241 uint32_t *lp, entry_1, entry_2;
5242 int i;
5243
5244 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5245 if (!target_ldt_info)
5246 return -TARGET_EFAULT;
5247 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5248 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 5249 ldt_info.limit = tswap32(target_ldt_info->limit);
5250 ldt_info.flags = tswap32(target_ldt_info->flags);
5251 if (ldt_info.entry_number == -1) {
5252 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5253 if (gdt_table[i] == 0) {
5254 ldt_info.entry_number = i;
5255 target_ldt_info->entry_number = tswap32(i);
5256 break;
5257 }
5258 }
5259 }
5260 unlock_user_struct(target_ldt_info, ptr, 1);
5261
5262 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5263 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5264 return -TARGET_EINVAL;
5265 seg_32bit = ldt_info.flags & 1;
5266 contents = (ldt_info.flags >> 1) & 3;
5267 read_exec_only = (ldt_info.flags >> 3) & 1;
5268 limit_in_pages = (ldt_info.flags >> 4) & 1;
5269 seg_not_present = (ldt_info.flags >> 5) & 1;
5270 useable = (ldt_info.flags >> 6) & 1;
5271#ifdef TARGET_ABI32
5272 lm = 0;
5273#else
5274 lm = (ldt_info.flags >> 7) & 1;
5275#endif
5276
5277 if (contents == 3) {
5278 if (seg_not_present == 0)
5279 return -TARGET_EINVAL;
5280 }
5281
5282 /* NOTE: same code as Linux kernel */
5283 /* Allow LDTs to be cleared by the user. */
5284 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5285 if ((contents == 0 &&
5286 read_exec_only == 1 &&
5287 seg_32bit == 0 &&
5288 limit_in_pages == 0 &&
5289 seg_not_present == 1 &&
5290 useable == 0 )) {
5291 entry_1 = 0;
5292 entry_2 = 0;
5293 goto install;
5294 }
5295 }
5296
5297 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5298 (ldt_info.limit & 0x0ffff);
5299 entry_2 = (ldt_info.base_addr & 0xff000000) |
5300 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5301 (ldt_info.limit & 0xf0000) |
5302 ((read_exec_only ^ 1) << 9) |
5303 (contents << 10) |
5304 ((seg_not_present ^ 1) << 15) |
5305 (seg_32bit << 22) |
5306 (limit_in_pages << 23) |
5307 (useable << 20) |
5308 (lm << 21) |
5309 0x7000;
5310
5311 /* Install the new entry ... */
5312install:
5313 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5314 lp[0] = tswap32(entry_1);
5315 lp[1] = tswap32(entry_2);
5316 return 0;
5317}
5318
8fcd3692 5319static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5320{
5321 struct target_modify_ldt_ldt_s *target_ldt_info;
5322 uint64_t *gdt_table = g2h(env->gdt.base);
5323 uint32_t base_addr, limit, flags;
5324 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5325 int seg_not_present, useable, lm;
5326 uint32_t *lp, entry_1, entry_2;
5327
5328 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5329 if (!target_ldt_info)
5330 return -TARGET_EFAULT;
5331 idx = tswap32(target_ldt_info->entry_number);
5332 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5333 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5334 unlock_user_struct(target_ldt_info, ptr, 1);
5335 return -TARGET_EINVAL;
5336 }
5337 lp = (uint32_t *)(gdt_table + idx);
5338 entry_1 = tswap32(lp[0]);
5339 entry_2 = tswap32(lp[1]);
5340
5341 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5342 contents = (entry_2 >> 10) & 3;
5343 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5344 seg_32bit = (entry_2 >> 22) & 1;
5345 limit_in_pages = (entry_2 >> 23) & 1;
5346 useable = (entry_2 >> 20) & 1;
5347#ifdef TARGET_ABI32
5348 lm = 0;
5349#else
5350 lm = (entry_2 >> 21) & 1;
5351#endif
5352 flags = (seg_32bit << 0) | (contents << 1) |
5353 (read_exec_only << 3) | (limit_in_pages << 4) |
5354 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5355 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5356 base_addr = (entry_1 >> 16) |
5357 (entry_2 & 0xff000000) |
5358 ((entry_2 & 0xff) << 16);
cbb21eed 5359 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 5360 target_ldt_info->limit = tswap32(limit);
5361 target_ldt_info->flags = tswap32(flags);
5362 unlock_user_struct(target_ldt_info, ptr, 1);
5363 return 0;
5364}
4583f589 5365#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 5366
d2fd1af7 5367#ifndef TARGET_ABI32
2667e71c 5368abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 5369{
1add8698 5370 abi_long ret = 0;
d2fd1af7
FB		 5371 abi_ulong val;
5372 int idx;
1add8698 5373
d2fd1af7
FB		 5374 switch(code) {
5375 case TARGET_ARCH_SET_GS:
5376 case TARGET_ARCH_SET_FS:
5377 if (code == TARGET_ARCH_SET_GS)
5378 idx = R_GS;
5379 else
5380 idx = R_FS;
5381 cpu_x86_load_seg(env, idx, 0);
5382 env->segs[idx].base = addr;
5383 break;
5384 case TARGET_ARCH_GET_GS:
5385 case TARGET_ARCH_GET_FS:
5386 if (code == TARGET_ARCH_GET_GS)
5387 idx = R_GS;
5388 else
5389 idx = R_FS;
5390 val = env->segs[idx].base;
5391 if (put_user(val, addr, abi_ulong))
1add8698 5392 ret = -TARGET_EFAULT;
d2fd1af7
FB		 5393 break;
5394 default:
5395 ret = -TARGET_EINVAL;
5396 break;
5397 }
1add8698 5398 return ret;
d2fd1af7
FB		 5399}
5400#endif
5401
2ab83ea7
FB		 5402#endif /* defined(TARGET_I386) */
5403
05098a93 5404#define NEW_STACK_SIZE 0x40000
d865bab5 5405
d865bab5
PB		 5406
5407static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5408typedef struct {
9349b4f9 5409 CPUArchState *env;
d865bab5
PB		 5410 pthread_mutex_t mutex;
5411 pthread_cond_t cond;
5412 pthread_t thread;
5413 uint32_t tid;
5414 abi_ulong child_tidptr;
5415 abi_ulong parent_tidptr;
5416 sigset_t sigmask;
5417} new_thread_info;
5418
5419static void *clone_func(void *arg)
5420{
5421 new_thread_info *info = arg;
9349b4f9 5422 CPUArchState *env;
0d34282f 5423 CPUState *cpu;
edf8e2af 5424 TaskState *ts;
d865bab5 5425
70903763 5426 rcu_register_thread();
3468b59e 5427 tcg_register_thread();
d865bab5 5428 env = info->env;
0d34282f 5429 cpu = ENV_GET_CPU(env);
a2247f8e 5430 thread_cpu = cpu;
0429a971 5431 ts = (TaskState *)cpu->opaque;
d865bab5 5432 info->tid = gettid();
edf8e2af 5433 task_settid(ts);
d865bab5
PB		 5434 if (info->child_tidptr)
5435 put_user_u32(info->tid, info->child_tidptr);
5436 if (info->parent_tidptr)
5437 put_user_u32(info->tid, info->parent_tidptr);
5438 /* Enable signals. */
5439 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5440 /* Signal to the parent that we're ready. */
5441 pthread_mutex_lock(&info->mutex);
5442 pthread_cond_broadcast(&info->cond);
5443 pthread_mutex_unlock(&info->mutex);
a4dd3d51 5444 /* Wait until the parent has finished initializing the tls state. */
d865bab5
PB		 5445 pthread_mutex_lock(&clone_lock);
5446 pthread_mutex_unlock(&clone_lock);
5447 cpu_loop(env);
5448 /* never exits */
5449 return NULL;
5450}
1b6b029e 5451
0da46a6e
TS		 5452/* do_fork() Must return host values and target errnos (unlike most
5453 do_*() functions). */
9349b4f9 5454static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 5455 abi_ulong parent_tidptr, target_ulong newtls,
5456 abi_ulong child_tidptr)
1b6b029e 5457{
0429a971 5458 CPUState *cpu = ENV_GET_CPU(env);
1b6b029e 5459 int ret;
5cd4393b 5460 TaskState *ts;
0429a971 5461 CPUState *new_cpu;
9349b4f9 5462 CPUArchState *new_env;
d865bab5 5463 sigset_t sigmask;
3b46e624 5464
5ea2fc84
PM		 5465 flags &= ~CLONE_IGNORED_FLAGS;
5466
436d124b
AZ		 5467 /* Emulate vfork() with fork() */
5468 if (flags & CLONE_VFORK)
5469 flags &= ~(CLONE_VFORK | CLONE_VM);
5470
1b6b029e 5471 if (flags & CLONE_VM) {
0429a971 5472 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5473 new_thread_info info;
5474 pthread_attr_t attr;
24cb36a6 5475
5ea2fc84
PM		 5476 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
5477 (flags & CLONE_INVALID_THREAD_FLAGS)) {
5478 return -TARGET_EINVAL;
5479 }
5480
c78d65e8 5481 ts = g_new0(TaskState, 1);
624f7979 5482 init_task_state(ts);
73a988d9
MF		 5483
5484 /* Grab a mutex so that thread setup appears atomic. */
5485 pthread_mutex_lock(&clone_lock);
5486
1b6b029e 5487 /* we create a new CPU instance. */
c5be9f08 5488 new_env = cpu_copy(env);
6e68e076
PB		 5489 /* Init regs that differ from the parent. */
5490 cpu_clone_regs(new_env, newsp);
0429a971
AF		 5491 new_cpu = ENV_GET_CPU(new_env);
5492 new_cpu->opaque = ts;
edf8e2af
MW		 5493 ts->bprm = parent_ts->bprm;
5494 ts->info = parent_ts->info;
3d3efba0 5495 ts->signal_mask = parent_ts->signal_mask;
d865bab5 5496
7cfbd386 5497 if (flags & CLONE_CHILD_CLEARTID) {
c2764719
PB		 5498 ts->child_tidptr = child_tidptr;
5499 }
5500
7cfbd386 5501 if (flags & CLONE_SETTLS) {
d865bab5 5502 cpu_set_tls (new_env, newtls);
7cfbd386 5503 }
d865bab5 5504
d865bab5
PB		 5505 memset(&info, 0, sizeof(info));
5506 pthread_mutex_init(&info.mutex, NULL);
5507 pthread_mutex_lock(&info.mutex);
5508 pthread_cond_init(&info.cond, NULL);
5509 info.env = new_env;
7cfbd386 5510 if (flags & CLONE_CHILD_SETTID) {
d865bab5 5511 info.child_tidptr = child_tidptr;
7cfbd386
PM		 5512 }
5513 if (flags & CLONE_PARENT_SETTID) {
d865bab5 5514 info.parent_tidptr = parent_tidptr;
7cfbd386 5515 }
d865bab5
PB		 5516
5517 ret = pthread_attr_init(&attr);
48e15fc2
NF		 5518 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5519 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 5520 /* It is not safe to deliver signals until the child has finished
5521 initializing, so temporarily block all signals. */
5522 sigfillset(&sigmask);
5523 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5524
b67cb68b
AB		 5525 /* If this is our first additional thread, we need to ensure we
5526 * generate code for parallel execution and flush old translations.
5527 */
5528 if (!parallel_cpus) {
5529 parallel_cpus = true;
5530 tb_flush(cpu);
5531 }
5532
d865bab5 5533 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 5534 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 5535
5536 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5537 pthread_attr_destroy(&attr);
5538 if (ret == 0) {
5539 /* Wait for the child to initialize. */
5540 pthread_cond_wait(&info.cond, &info.mutex);
5541 ret = info.tid;
d865bab5
PB		 5542 } else {
5543 ret = -1;
5544 }
5545 pthread_mutex_unlock(&info.mutex);
5546 pthread_cond_destroy(&info.cond);
5547 pthread_mutex_destroy(&info.mutex);
5548 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 5549 } else {
5550 /* if no CLONE_VM, we consider it is a fork */
5ea2fc84
PM		 5551 if (flags & CLONE_INVALID_FORK_FLAGS) {
5552 return -TARGET_EINVAL;
5553 }
5554
5555 /* We can't support custom termination signals */
5556 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
93b4eff8
TB		 5557 return -TARGET_EINVAL;
5558 }
7d92d34e
TB		 5559
5560 if (block_signals()) {
5561 return -TARGET_ERESTARTSYS;
5562 }
5563
d865bab5 5564 fork_start();
1b6b029e 5565 ret = fork();
d865bab5 5566 if (ret == 0) {
2b1319c8 5567 /* Child Process. */
d865bab5
PB		 5568 cpu_clone_regs(env, newsp);
5569 fork_end(1);
2b1319c8
AJ		 5570 /* There is a race condition here. The parent process could
5571 theoretically read the TID in the child process before the child
5572 tid is set. This would require using either ptrace
5573 (not implemented) or having *_tidptr to point at a shared memory
5574 mapping. We can't repeat the spinlock hack used above because
5575 the child process gets its own copy of the lock. */
d865bab5
PB		 5576 if (flags & CLONE_CHILD_SETTID)
5577 put_user_u32(gettid(), child_tidptr);
5578 if (flags & CLONE_PARENT_SETTID)
5579 put_user_u32(gettid(), parent_tidptr);
0429a971 5580 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5581 if (flags & CLONE_SETTLS)
5582 cpu_set_tls (env, newtls);
c2764719
PB		 5583 if (flags & CLONE_CHILD_CLEARTID)
5584 ts->child_tidptr = child_tidptr;
d865bab5
PB		 5585 } else {
5586 fork_end(0);
5587 }
1b6b029e
FB		 5588 }
5589 return ret;
5590}
5591
5f106811
APR		 5592/* warning : doesn't handle linux specific flags... */
5593static int target_to_host_fcntl_cmd(int cmd)
5594{
4a545761
SB		 5595 int ret;
5596
5f106811 5597 switch(cmd) {
4a545761
SB		 5598 case TARGET_F_DUPFD:
5599 case TARGET_F_GETFD:
5600 case TARGET_F_SETFD:
5601 case TARGET_F_GETFL:
5602 case TARGET_F_SETFL:
5603 ret = cmd;
5604 break;
5605 case TARGET_F_GETLK:
5606 ret = F_GETLK64;
5607 break;
5608 case TARGET_F_SETLK:
5609 ret = F_SETLK64;
5610 break;
5611 case TARGET_F_SETLKW:
5612 ret = F_SETLKW64;
5613 break;
5614 case TARGET_F_GETOWN:
5615 ret = F_GETOWN;
5616 break;
5617 case TARGET_F_SETOWN:
5618 ret = F_SETOWN;
5619 break;
5620 case TARGET_F_GETSIG:
5621 ret = F_GETSIG;
5622 break;
5623 case TARGET_F_SETSIG:
5624 ret = F_SETSIG;
5625 break;
5f106811 5626#if TARGET_ABI_BITS == 32
4a545761
SB		 5627 case TARGET_F_GETLK64:
5628 ret = F_GETLK64;
5629 break;
5630 case TARGET_F_SETLK64:
5631 ret = F_SETLK64;
5632 break;
5633 case TARGET_F_SETLKW64:
5634 ret = F_SETLKW64;
5635 break;
5f106811 5636#endif
4a545761
SB		 5637 case TARGET_F_SETLEASE:
5638 ret = F_SETLEASE;
5639 break;
5640 case TARGET_F_GETLEASE:
5641 ret = F_GETLEASE;
5642 break;
fbd5de9b 5643#ifdef F_DUPFD_CLOEXEC
4a545761
SB		 5644 case TARGET_F_DUPFD_CLOEXEC:
5645 ret = F_DUPFD_CLOEXEC;
5646 break;
fbd5de9b 5647#endif
4a545761
SB		 5648 case TARGET_F_NOTIFY:
5649 ret = F_NOTIFY;
5650 break;
8d5d3004 5651#ifdef F_GETOWN_EX
4a545761
SB		 5652 case TARGET_F_GETOWN_EX:
5653 ret = F_GETOWN_EX;
5654 break;
8d5d3004
AS		 5655#endif
5656#ifdef F_SETOWN_EX
4a545761
SB		 5657 case TARGET_F_SETOWN_EX:
5658 ret = F_SETOWN_EX;
5659 break;
8d5d3004 5660#endif
ddf31aa8 5661#ifdef F_SETPIPE_SZ
4a545761
SB		 5662 case TARGET_F_SETPIPE_SZ:
5663 ret = F_SETPIPE_SZ;
5664 break;
5665 case TARGET_F_GETPIPE_SZ:
5666 ret = F_GETPIPE_SZ;
5667 break;
ddf31aa8 5668#endif
4a545761
SB		 5669 default:
5670 ret = -TARGET_EINVAL;
5671 break;
5672 }
5673
5674#if defined(__powerpc64__)
5675 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
5676 * is not supported by kernel. The glibc fcntl call actually adjusts
5677 * them to 5, 6 and 7 before making the syscall(). Since we make the
5678 * syscall directly, adjust to what is supported by the kernel.
5679 */
5680 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
5681 ret -= F_GETLK64 - 5;
5f106811 5682 }
4a545761
SB		 5683#endif
5684
5685 return ret;
5f106811
APR		 5686}
5687
ae68ad9f
LV		 5688#define FLOCK_TRANSTBL \
5689 switch (type) { \
5690 TRANSTBL_CONVERT(F_RDLCK); \
5691 TRANSTBL_CONVERT(F_WRLCK); \
5692 TRANSTBL_CONVERT(F_UNLCK); \
5693 TRANSTBL_CONVERT(F_EXLCK); \
5694 TRANSTBL_CONVERT(F_SHLCK); \
5695 }
5696
5697static int target_to_host_flock(int type)
5698{
5699#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
5700 FLOCK_TRANSTBL
5701#undef TRANSTBL_CONVERT
5702 return -TARGET_EINVAL;
5703}
5704
5705static int host_to_target_flock(int type)
5706{
5707#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
5708 FLOCK_TRANSTBL
5709#undef TRANSTBL_CONVERT
5710 /* if we don't know how to convert the value coming
5711 * from the host we copy to the target field as-is
5712 */
5713 return type;
5714}
2ba7f730 5715
213d3e9e
PM		 5716static inline abi_long copy_from_user_flock(struct flock64 *fl,
5717 abi_ulong target_flock_addr)
7775e9ec 5718{
53a5960a 5719 struct target_flock *target_fl;
ae68ad9f 5720 int l_type;
213d3e9e
PM		 5721
5722 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5723 return -TARGET_EFAULT;
5724 }
5725
5726 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5727 l_type = target_to_host_flock(l_type);
5728 if (l_type < 0) {
5729 return l_type;
5730 }
5731 fl->l_type = l_type;
213d3e9e
PM		 5732 __get_user(fl->l_whence, &target_fl->l_whence);
5733 __get_user(fl->l_start, &target_fl->l_start);
5734 __get_user(fl->l_len, &target_fl->l_len);
5735 __get_user(fl->l_pid, &target_fl->l_pid);
5736 unlock_user_struct(target_fl, target_flock_addr, 0);
5737 return 0;
5738}
5739
5740static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
5741 const struct flock64 *fl)
5742{
5743 struct target_flock *target_fl;
5744 short l_type;
5745
5746 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5747 return -TARGET_EFAULT;
5748 }
5749
ae68ad9f 5750 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5751 __put_user(l_type, &target_fl->l_type);
5752 __put_user(fl->l_whence, &target_fl->l_whence);
5753 __put_user(fl->l_start, &target_fl->l_start);
5754 __put_user(fl->l_len, &target_fl->l_len);
5755 __put_user(fl->l_pid, &target_fl->l_pid);
5756 unlock_user_struct(target_fl, target_flock_addr, 1);
5757 return 0;
5758}
5759
5760typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
5761typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
5762
5763#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7f254c5c 5764static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
213d3e9e
PM		 5765 abi_ulong target_flock_addr)
5766{
7f254c5c 5767 struct target_oabi_flock64 *target_fl;
ae68ad9f 5768 int l_type;
213d3e9e
PM		 5769
5770 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5771 return -TARGET_EFAULT;
5772 }
5773
5774 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5775 l_type = target_to_host_flock(l_type);
5776 if (l_type < 0) {
5777 return l_type;
5778 }
5779 fl->l_type = l_type;
213d3e9e
PM		 5780 __get_user(fl->l_whence, &target_fl->l_whence);
5781 __get_user(fl->l_start, &target_fl->l_start);
5782 __get_user(fl->l_len, &target_fl->l_len);
5783 __get_user(fl->l_pid, &target_fl->l_pid);
5784 unlock_user_struct(target_fl, target_flock_addr, 0);
5785 return 0;
5786}
5787
7f254c5c 5788static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
213d3e9e
PM		 5789 const struct flock64 *fl)
5790{
7f254c5c 5791 struct target_oabi_flock64 *target_fl;
213d3e9e
PM		 5792 short l_type;
5793
5794 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5795 return -TARGET_EFAULT;
5796 }
5797
ae68ad9f 5798 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5799 __put_user(l_type, &target_fl->l_type);
5800 __put_user(fl->l_whence, &target_fl->l_whence);
5801 __put_user(fl->l_start, &target_fl->l_start);
5802 __put_user(fl->l_len, &target_fl->l_len);
5803 __put_user(fl->l_pid, &target_fl->l_pid);
5804 unlock_user_struct(target_fl, target_flock_addr, 1);
5805 return 0;
5806}
5807#endif
5808
5809static inline abi_long copy_from_user_flock64(struct flock64 *fl,
5810 abi_ulong target_flock_addr)
5811{
5812 struct target_flock64 *target_fl;
ae68ad9f 5813 int l_type;
213d3e9e
PM		 5814
5815 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5816 return -TARGET_EFAULT;
5817 }
5818
5819 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5820 l_type = target_to_host_flock(l_type);
5821 if (l_type < 0) {
5822 return l_type;
5823 }
5824 fl->l_type = l_type;
213d3e9e
PM		 5825 __get_user(fl->l_whence, &target_fl->l_whence);
5826 __get_user(fl->l_start, &target_fl->l_start);
5827 __get_user(fl->l_len, &target_fl->l_len);
5828 __get_user(fl->l_pid, &target_fl->l_pid);
5829 unlock_user_struct(target_fl, target_flock_addr, 0);
5830 return 0;
5831}
5832
5833static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
5834 const struct flock64 *fl)
5835{
5836 struct target_flock64 *target_fl;
5837 short l_type;
5838
5839 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5840 return -TARGET_EFAULT;
5841 }
5842
ae68ad9f 5843 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5844 __put_user(l_type, &target_fl->l_type);
5845 __put_user(fl->l_whence, &target_fl->l_whence);
5846 __put_user(fl->l_start, &target_fl->l_start);
5847 __put_user(fl->l_len, &target_fl->l_len);
5848 __put_user(fl->l_pid, &target_fl->l_pid);
5849 unlock_user_struct(target_fl, target_flock_addr, 1);
5850 return 0;
5851}
5852
5853static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
5854{
43f238d7 5855 struct flock64 fl64;
8d5d3004
AS		 5856#ifdef F_GETOWN_EX
5857 struct f_owner_ex fox;
5858 struct target_f_owner_ex *target_fox;
5859#endif
992f48a0 5860 abi_long ret;
5f106811
APR		 5861 int host_cmd = target_to_host_fcntl_cmd(cmd);
5862
5863 if (host_cmd == -TARGET_EINVAL)
5864 return host_cmd;
53a5960a 5865
7775e9ec
FB		 5866 switch(cmd) {
5867 case TARGET_F_GETLK:
213d3e9e
PM		 5868 ret = copy_from_user_flock(&fl64, arg);
5869 if (ret) {
5870 return ret;
5871 }
435da5e7 5872 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5873 if (ret == 0) {
213d3e9e 5874 ret = copy_to_user_flock(arg, &fl64);
7775e9ec
FB		 5875 }
5876 break;
3b46e624 5877
7775e9ec
FB		 5878 case TARGET_F_SETLK:
5879 case TARGET_F_SETLKW:
213d3e9e
PM		 5880 ret = copy_from_user_flock(&fl64, arg);
5881 if (ret) {
5882 return ret;
5883 }
435da5e7 5884 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5885 break;
3b46e624 5886
7775e9ec 5887 case TARGET_F_GETLK64:
213d3e9e
PM		 5888 ret = copy_from_user_flock64(&fl64, arg);
5889 if (ret) {
5890 return ret;
5891 }
435da5e7 5892 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
43f238d7 5893 if (ret == 0) {
213d3e9e 5894 ret = copy_to_user_flock64(arg, &fl64);
43f238d7 5895 }
9ee1fa2c 5896 break;
7775e9ec
FB		 5897 case TARGET_F_SETLK64:
5898 case TARGET_F_SETLKW64:
213d3e9e
PM		 5899 ret = copy_from_user_flock64(&fl64, arg);
5900 if (ret) {
5901 return ret;
5902 }
435da5e7 5903 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 5904 break;
5905
5f106811 5906 case TARGET_F_GETFL:
435da5e7 5907 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 5908 if (ret >= 0) {
5909 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
5910 }
ffa65c3b
FB		 5911 break;
5912
5f106811 5913 case TARGET_F_SETFL:
435da5e7
PM		 5914 ret = get_errno(safe_fcntl(fd, host_cmd,
5915 target_to_host_bitmask(arg,
5916 fcntl_flags_tbl)));
5f106811
APR		 5917 break;
5918
8d5d3004
AS		 5919#ifdef F_GETOWN_EX
5920 case TARGET_F_GETOWN_EX:
435da5e7 5921 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5922 if (ret >= 0) {
5923 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
5924 return -TARGET_EFAULT;
5925 target_fox->type = tswap32(fox.type);
5926 target_fox->pid = tswap32(fox.pid);
5927 unlock_user_struct(target_fox, arg, 1);
5928 }
5929 break;
5930#endif
5931
5932#ifdef F_SETOWN_EX
5933 case TARGET_F_SETOWN_EX:
5934 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
5935 return -TARGET_EFAULT;
5936 fox.type = tswap32(target_fox->type);
5937 fox.pid = tswap32(target_fox->pid);
5938 unlock_user_struct(target_fox, arg, 0);
435da5e7 5939 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5940 break;
5941#endif
5942
5f106811
APR		 5943 case TARGET_F_SETOWN:
5944 case TARGET_F_GETOWN:
5945 case TARGET_F_SETSIG:
5946 case TARGET_F_GETSIG:
7e22e546
UH		 5947 case TARGET_F_SETLEASE:
5948 case TARGET_F_GETLEASE:
7e3b92ec
PM		 5949 case TARGET_F_SETPIPE_SZ:
5950 case TARGET_F_GETPIPE_SZ:
435da5e7 5951 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 5952 break;
5953
7775e9ec 5954 default:
435da5e7 5955 ret = get_errno(safe_fcntl(fd, cmd, arg));
7775e9ec
FB		 5956 break;
5957 }
5958 return ret;
5959}
5960
67867308 5961#ifdef USE_UID16
7775e9ec 5962
67867308
FB		 5963static inline int high2lowuid(int uid)
5964{
5965 if (uid > 65535)
5966 return 65534;
5967 else
5968 return uid;
5969}
5970
5971static inline int high2lowgid(int gid)
5972{
5973 if (gid > 65535)
5974 return 65534;
5975 else
5976 return gid;
5977}
5978
5979static inline int low2highuid(int uid)
5980{
5981 if ((int16_t)uid == -1)
5982 return -1;
5983 else
5984 return uid;
5985}
5986
5987static inline int low2highgid(int gid)
5988{
5989 if ((int16_t)gid == -1)
5990 return -1;
5991 else
5992 return gid;
5993}
0c866a7e
RV		 5994static inline int tswapid(int id)
5995{
5996 return tswap16(id);
5997}
76ca310a
PM		 5998
5999#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
6000
0c866a7e
RV		 6001#else /* !USE_UID16 */
6002static inline int high2lowuid(int uid)
6003{
6004 return uid;
6005}
6006static inline int high2lowgid(int gid)
6007{
6008 return gid;
6009}
6010static inline int low2highuid(int uid)
6011{
6012 return uid;
6013}
6014static inline int low2highgid(int gid)
6015{
6016 return gid;
6017}
6018static inline int tswapid(int id)
6019{
6020 return tswap32(id);
6021}
76ca310a
PM		 6022
6023#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
6024
67867308 6025#endif /* USE_UID16 */
1b6b029e 6026
fd6f7798
PM		 6027/* We must do direct syscalls for setting UID/GID, because we want to
6028 * implement the Linux system call semantics of "change only for this thread",
6029 * not the libc/POSIX semantics of "change for all threads in process".
6030 * (See http://ewontfix.com/17/ for more details.)
6031 * We use the 32-bit version of the syscalls if present; if it is not
6032 * then either the host architecture supports 32-bit UIDs natively with
6033 * the standard syscall, or the 16-bit UID is the best we can do.
6034 */
6035#ifdef __NR_setuid32
6036#define __NR_sys_setuid __NR_setuid32
6037#else
6038#define __NR_sys_setuid __NR_setuid
6039#endif
6040#ifdef __NR_setgid32
6041#define __NR_sys_setgid __NR_setgid32
6042#else
6043#define __NR_sys_setgid __NR_setgid
6044#endif
6045#ifdef __NR_setresuid32
6046#define __NR_sys_setresuid __NR_setresuid32
6047#else
6048#define __NR_sys_setresuid __NR_setresuid
6049#endif
6050#ifdef __NR_setresgid32
6051#define __NR_sys_setresgid __NR_setresgid32
6052#else
6053#define __NR_sys_setresgid __NR_setresgid
6054#endif
6055
6056_syscall1(int, sys_setuid, uid_t, uid)
6057_syscall1(int, sys_setgid, gid_t, gid)
6058_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
6059_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
6060
31e31b8a
FB		 6061void syscall_init(void)
6062{
2ab83ea7
FB		 6063 IOCTLEntry *ie;
6064 const argtype *arg_type;
6065 int size;
b92c47c1 6066 int i;
2ab83ea7 6067
8be656b8
AG		 6068 thunk_init(STRUCT_MAX);
6069
001faf32 6070#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 6071#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 6072#include "syscall_types.h"
6073#undef STRUCT
6074#undef STRUCT_SPECIAL
2ab83ea7 6075
dd6e957a
PM		 6076 /* Build target_to_host_errno_table[] table from
6077 * host_to_target_errno_table[]. */
6078 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
6079 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
6080 }
6081
2ab83ea7
FB		 6082 /* we patch the ioctl size if necessary. We rely on the fact that
6083 no ioctl has all the bits at '1' in the size field */
6084 ie = ioctl_entries;
6085 while (ie->target_cmd != 0) {
6086 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
6087 TARGET_IOC_SIZEMASK) {
6088 arg_type = ie->arg_type;
6089 if (arg_type[0] != TYPE_PTR) {
5fafdf24 6090 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 6091 ie->target_cmd);
6092 exit(1);
6093 }
6094 arg_type++;
6095 size = thunk_type_size(arg_type, 0);
5fafdf24 6096 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 6097 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
6098 (size << TARGET_IOC_SIZESHIFT);
6099 }
b92c47c1 6100
2ab83ea7 6101 /* automatic consistency check if same arch */
872ea0c0
AZ		 6102#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6103 (defined(__x86_64__) && defined(TARGET_X86_64))
6104 if (unlikely(ie->target_cmd != ie->host_cmd)) {
6105 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
6106 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 6107 }
6108#endif
6109 ie++;
6110 }
31e31b8a 6111}
c573ff67 6112
992f48a0 6113#if TARGET_ABI_BITS == 32
ce4defa0
PB		 6114static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
6115{
af325d36 6116#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 6117 return ((uint64_t)word0 << 32) | word1;
6118#else
6119 return ((uint64_t)word1 << 32) | word0;
6120#endif
6121}
992f48a0 6122#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 6123static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
6124{
6125 return word0;
6126}
992f48a0 6127#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 6128
6129#ifdef TARGET_NR_truncate64
992f48a0
BS		 6130static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
6131 abi_long arg2,
6132 abi_long arg3,
6133 abi_long arg4)
ce4defa0 6134{
8bf8e9df 6135 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
ce4defa0
PB		 6136 arg2 = arg3;
6137 arg3 = arg4;
48e515d4 6138 }
ce4defa0
PB		 6139 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
6140}
6141#endif
6142
6143#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 6144static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
6145 abi_long arg2,
6146 abi_long arg3,
6147 abi_long arg4)
ce4defa0 6148{
8bf8e9df 6149 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
ce4defa0
PB		 6150 arg2 = arg3;
6151 arg3 = arg4;
48e515d4 6152 }
ce4defa0
PB		 6153 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
6154}
6155#endif
6156
579a97f7
FB		 6157static inline abi_long target_to_host_timespec(struct timespec *host_ts,
6158 abi_ulong target_addr)
53a5960a
PB		 6159{
6160 struct target_timespec *target_ts;
6161
579a97f7
FB		 6162 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
6163 return -TARGET_EFAULT;
c7e35da3
PM		 6164 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
6165 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6166 unlock_user_struct(target_ts, target_addr, 0);
b255bfa8 6167 return 0;
53a5960a
PB		 6168}
6169
579a97f7
FB		 6170static inline abi_long host_to_target_timespec(abi_ulong target_addr,
6171 struct timespec *host_ts)
53a5960a
PB		 6172{
6173 struct target_timespec *target_ts;
6174
579a97f7
FB		 6175 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
6176 return -TARGET_EFAULT;
c7e35da3
PM		 6177 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
6178 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6179 unlock_user_struct(target_ts, target_addr, 1);
b255bfa8 6180 return 0;
53a5960a
PB		 6181}
6182
f4f1e10a
ECL		 6183static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
6184 abi_ulong target_addr)
6185{
6186 struct target_itimerspec *target_itspec;
6187
6188 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
6189 return -TARGET_EFAULT;
6190 }
6191
6192 host_itspec->it_interval.tv_sec =
6193 tswapal(target_itspec->it_interval.tv_sec);
6194 host_itspec->it_interval.tv_nsec =
6195 tswapal(target_itspec->it_interval.tv_nsec);
6196 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
6197 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
6198
6199 unlock_user_struct(target_itspec, target_addr, 1);
6200 return 0;
6201}
6202
6203static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
6204 struct itimerspec *host_its)
6205{
6206 struct target_itimerspec *target_itspec;
6207
6208 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
6209 return -TARGET_EFAULT;
6210 }
6211
6212 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
6213 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
6214
6215 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
6216 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
6217
6218 unlock_user_struct(target_itspec, target_addr, 0);
6219 return 0;
6220}
6221
19f59bce
AM		 6222static inline abi_long target_to_host_timex(struct timex *host_tx,
6223 abi_long target_addr)
6224{
6225 struct target_timex *target_tx;
6226
6227 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
6228 return -TARGET_EFAULT;
6229 }
6230
6231 __get_user(host_tx->modes, &target_tx->modes);
6232 __get_user(host_tx->offset, &target_tx->offset);
6233 __get_user(host_tx->freq, &target_tx->freq);
6234 __get_user(host_tx->maxerror, &target_tx->maxerror);
6235 __get_user(host_tx->esterror, &target_tx->esterror);
6236 __get_user(host_tx->status, &target_tx->status);
6237 __get_user(host_tx->constant, &target_tx->constant);
6238 __get_user(host_tx->precision, &target_tx->precision);
6239 __get_user(host_tx->tolerance, &target_tx->tolerance);
6240 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6241 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6242 __get_user(host_tx->tick, &target_tx->tick);
6243 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6244 __get_user(host_tx->jitter, &target_tx->jitter);
6245 __get_user(host_tx->shift, &target_tx->shift);
6246 __get_user(host_tx->stabil, &target_tx->stabil);
6247 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
6248 __get_user(host_tx->calcnt, &target_tx->calcnt);
6249 __get_user(host_tx->errcnt, &target_tx->errcnt);
6250 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
6251 __get_user(host_tx->tai, &target_tx->tai);
6252
6253 unlock_user_struct(target_tx, target_addr, 0);
6254 return 0;
6255}
6256
6257static inline abi_long host_to_target_timex(abi_long target_addr,
6258 struct timex *host_tx)
6259{
6260 struct target_timex *target_tx;
6261
6262 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
6263 return -TARGET_EFAULT;
6264 }
6265
6266 __put_user(host_tx->modes, &target_tx->modes);
6267 __put_user(host_tx->offset, &target_tx->offset);
6268 __put_user(host_tx->freq, &target_tx->freq);
6269 __put_user(host_tx->maxerror, &target_tx->maxerror);
6270 __put_user(host_tx->esterror, &target_tx->esterror);
6271 __put_user(host_tx->status, &target_tx->status);
6272 __put_user(host_tx->constant, &target_tx->constant);
6273 __put_user(host_tx->precision, &target_tx->precision);
6274 __put_user(host_tx->tolerance, &target_tx->tolerance);
6275 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6276 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6277 __put_user(host_tx->tick, &target_tx->tick);
6278 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6279 __put_user(host_tx->jitter, &target_tx->jitter);
6280 __put_user(host_tx->shift, &target_tx->shift);
6281 __put_user(host_tx->stabil, &target_tx->stabil);
6282 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
6283 __put_user(host_tx->calcnt, &target_tx->calcnt);
6284 __put_user(host_tx->errcnt, &target_tx->errcnt);
6285 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
6286 __put_user(host_tx->tai, &target_tx->tai);
6287
6288 unlock_user_struct(target_tx, target_addr, 1);
6289 return 0;
6290}
6291
6292
c065976f
PM		 6293static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
6294 abi_ulong target_addr)
6295{
6296 struct target_sigevent *target_sevp;
6297
6298 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
6299 return -TARGET_EFAULT;
6300 }
6301
6302 /* This union is awkward on 64 bit systems because it has a 32 bit
6303 * integer and a pointer in it; we follow the conversion approach
6304 * used for handling sigval types in signal.c so the guest should get
6305 * the correct value back even if we did a 64 bit byteswap and it's
6306 * using the 32 bit integer.
6307 */
6308 host_sevp->sigev_value.sival_ptr =
6309 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
6310 host_sevp->sigev_signo =
6311 target_to_host_signal(tswap32(target_sevp->sigev_signo));
6312 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
6313 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
6314
6315 unlock_user_struct(target_sevp, target_addr, 1);
6316 return 0;
6317}
6318
6f6a4032
TM		 6319#if defined(TARGET_NR_mlockall)
6320static inline int target_to_host_mlockall_arg(int arg)
6321{
6322 int result = 0;
6323
6324 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
6325 result |= MCL_CURRENT;
6326 }
6327 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
6328 result |= MCL_FUTURE;
6329 }
6330 return result;
6331}
6332#endif
6333
4f7f8924
AR		 6334#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
6335 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
6336 defined(TARGET_NR_newfstatat))
6a24a778
AZ		 6337static inline abi_long host_to_target_stat64(void *cpu_env,
6338 abi_ulong target_addr,
6339 struct stat *host_st)
6340{
09701199 6341#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 6342 if (((CPUARMState *)cpu_env)->eabi) {
6343 struct target_eabi_stat64 *target_st;
6344
6345 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6346 return -TARGET_EFAULT;
6347 memset(target_st, 0, sizeof(struct target_eabi_stat64));
6348 __put_user(host_st->st_dev, &target_st->st_dev);
6349 __put_user(host_st->st_ino, &target_st->st_ino);
6350#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6351 __put_user(host_st->st_ino, &target_st->__st_ino);
6352#endif
6353 __put_user(host_st->st_mode, &target_st->st_mode);
6354 __put_user(host_st->st_nlink, &target_st->st_nlink);
6355 __put_user(host_st->st_uid, &target_st->st_uid);
6356 __put_user(host_st->st_gid, &target_st->st_gid);
6357 __put_user(host_st->st_rdev, &target_st->st_rdev);
6358 __put_user(host_st->st_size, &target_st->st_size);
6359 __put_user(host_st->st_blksize, &target_st->st_blksize);
6360 __put_user(host_st->st_blocks, &target_st->st_blocks);
6361 __put_user(host_st->st_atime, &target_st->target_st_atime);
6362 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6363 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6364 unlock_user_struct(target_st, target_addr, 1);
6365 } else
6366#endif
6367 {
20d155bc 6368#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 6369 struct target_stat64 *target_st;
20d155bc
SW		 6370#else
6371 struct target_stat *target_st;
9d33b76b 6372#endif
6a24a778
AZ		 6373
6374 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6375 return -TARGET_EFAULT;
9d33b76b 6376 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 6377 __put_user(host_st->st_dev, &target_st->st_dev);
6378 __put_user(host_st->st_ino, &target_st->st_ino);
6379#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6380 __put_user(host_st->st_ino, &target_st->__st_ino);
6381#endif
6382 __put_user(host_st->st_mode, &target_st->st_mode);
6383 __put_user(host_st->st_nlink, &target_st->st_nlink);
6384 __put_user(host_st->st_uid, &target_st->st_uid);
6385 __put_user(host_st->st_gid, &target_st->st_gid);
6386 __put_user(host_st->st_rdev, &target_st->st_rdev);
6387 /* XXX: better use of kernel struct */
6388 __put_user(host_st->st_size, &target_st->st_size);
6389 __put_user(host_st->st_blksize, &target_st->st_blksize);
6390 __put_user(host_st->st_blocks, &target_st->st_blocks);
6391 __put_user(host_st->st_atime, &target_st->target_st_atime);
6392 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6393 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6394 unlock_user_struct(target_st, target_addr, 1);
6395 }
6396
6397 return 0;
6398}
4f7f8924 6399#endif
6a24a778 6400
bd0c5661
PB		 6401/* ??? Using host futex calls even when target atomic operations
6402 are not really atomic probably breaks things. However implementing
6403 futexes locally would make futexes shared between multiple processes
6404 tricky. However they're probably useless because guest atomic
6405 operations won't work either. */
8fcd3692
BS		 6406static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6407 target_ulong uaddr2, int val3)
bd0c5661
PB		 6408{
6409 struct timespec ts, *pts;
a16aae0c 6410 int base_op;
bd0c5661
PB		 6411
6412 /* ??? We assume FUTEX_* constants are the same on both host
6413 and target. */
a29ccd63 6414#ifdef FUTEX_CMD_MASK
a16aae0c 6415 base_op = op & FUTEX_CMD_MASK;
a29ccd63 6416#else
a16aae0c 6417 base_op = op;
a29ccd63 6418#endif
a16aae0c 6419 switch (base_op) {
bd0c5661 6420 case FUTEX_WAIT:
cce246e0 6421 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 6422 if (timeout) {
6423 pts = &ts;
6424 target_to_host_timespec(pts, timeout);
6425 } else {
6426 pts = NULL;
6427 }
d509eeb1 6428 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
cce246e0 6429 pts, NULL, val3));
bd0c5661 6430 case FUTEX_WAKE:
d509eeb1 6431 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6432 case FUTEX_FD:
d509eeb1 6433 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6434 case FUTEX_REQUEUE:
bd0c5661 6435 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 6436 case FUTEX_WAKE_OP:
6437 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
6438 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
6439 But the prototype takes a `struct timespec *'; insert casts
6440 to satisfy the compiler. We do not need to tswap TIMEOUT
6441 since it's not compared to guest memory. */
6442 pts = (struct timespec *)(uintptr_t) timeout;
d509eeb1
PM		 6443 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6444 g2h(uaddr2),
6445 (base_op == FUTEX_CMP_REQUEUE
6446 ? tswap32(val3)
6447 : val3)));
bd0c5661
PB		 6448 default:
6449 return -TARGET_ENOSYS;
6450 }
6451}
0f0426f3
LV		 6452#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6453static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6454 abi_long handle, abi_long mount_id,
6455 abi_long flags)
6456{
6457 struct file_handle *target_fh;
6458 struct file_handle *fh;
6459 int mid = 0;
6460 abi_long ret;
6461 char *name;
6462 unsigned int size, total_size;
6463
6464 if (get_user_s32(size, handle)) {
6465 return -TARGET_EFAULT;
6466 }
6467
6468 name = lock_user_string(pathname);
6469 if (!name) {
6470 return -TARGET_EFAULT;
6471 }
6472
6473 total_size = sizeof(struct file_handle) + size;
6474 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6475 if (!target_fh) {
6476 unlock_user(name, pathname, 0);
6477 return -TARGET_EFAULT;
6478 }
6479
6480 fh = g_malloc0(total_size);
6481 fh->handle_bytes = size;
6482
6483 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6484 unlock_user(name, pathname, 0);
6485
6486 /* man name_to_handle_at(2):
6487 * Other than the use of the handle_bytes field, the caller should treat
6488 * the file_handle structure as an opaque data type
6489 */
6490
6491 memcpy(target_fh, fh, total_size);
6492 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6493 target_fh->handle_type = tswap32(fh->handle_type);
6494 g_free(fh);
6495 unlock_user(target_fh, handle, total_size);
6496
6497 if (put_user_s32(mid, mount_id)) {
6498 return -TARGET_EFAULT;
6499 }
6500
6501 return ret;
6502
6503}
6504#endif
6505
6506#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6507static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6508 abi_long flags)
6509{
6510 struct file_handle *target_fh;
6511 struct file_handle *fh;
6512 unsigned int size, total_size;
6513 abi_long ret;
6514
6515 if (get_user_s32(size, handle)) {
6516 return -TARGET_EFAULT;
6517 }
6518
6519 total_size = sizeof(struct file_handle) + size;
6520 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6521 if (!target_fh) {
6522 return -TARGET_EFAULT;
6523 }
6524
e9d49d51 6525 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 6526 fh->handle_bytes = size;
6527 fh->handle_type = tswap32(target_fh->handle_type);
6528
6529 ret = get_errno(open_by_handle_at(mount_fd, fh,
6530 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6531
6532 g_free(fh);
6533
6534 unlock_user(target_fh, handle, total_size);
6535
6536 return ret;
6537}
6538#endif
bd0c5661 6539
e36800c9
LV		 6540#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6541
e36800c9
LV		 6542static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6543{
6544 int host_flags;
6545 target_sigset_t *target_mask;
6546 sigset_t host_mask;
6547 abi_long ret;
6548
6549 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6550 return -TARGET_EINVAL;
6551 }
6552 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6553 return -TARGET_EFAULT;
6554 }
6555
6556 target_to_host_sigset(&host_mask, target_mask);
6557
6558 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6559
6560 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6561 if (ret >= 0) {
6562 fd_trans_register(ret, &target_signalfd_trans);
6563 }
6564
6565 unlock_user_struct(target_mask, mask, 0);
6566
6567 return ret;
6568}
6569#endif
6570
1d9d8b55
PB		 6571/* Map host to target signal numbers for the wait family of syscalls.
6572 Assume all other status bits are the same. */
a05c6409 6573int host_to_target_waitstatus(int status)
1d9d8b55
PB		 6574{
6575 if (WIFSIGNALED(status)) {
6576 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6577 }
6578 if (WIFSTOPPED(status)) {
6579 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6580 | (status & 0xff);
6581 }
6582 return status;
6583}
6584
76b94245
WVS		 6585static int open_self_cmdline(void *cpu_env, int fd)
6586{
58de8b96
AS		 6587 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6588 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
6589 int i;
76b94245 6590
58de8b96
AS		 6591 for (i = 0; i < bprm->argc; i++) {
6592 size_t len = strlen(bprm->argv[i]) + 1;
76b94245 6593
58de8b96 6594 if (write(fd, bprm->argv[i], len) != len) {
76b94245 6595 return -1;
76b94245
WVS		 6596 }
6597 }
6598
58de8b96 6599 return 0;
76b94245
WVS		 6600}
6601
36c08d49
AG		 6602static int open_self_maps(void *cpu_env, int fd)
6603{
0429a971
AF		 6604 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6605 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 6606 FILE *fp;
6607 char *line = NULL;
6608 size_t len = 0;
6609 ssize_t read;
6610
6611 fp = fopen("/proc/self/maps", "r");
6612 if (fp == NULL) {
a3ca7bb2 6613 return -1;
1a49ef2a 6614 }
36c08d49 6615
1a49ef2a
AG		 6616 while ((read = getline(&line, &len, fp)) != -1) {
6617 int fields, dev_maj, dev_min, inode;
6618 uint64_t min, max, offset;
6619 char flag_r, flag_w, flag_x, flag_p;
6620 char path[512] = "";
6621 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6622 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6623 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6624
6625 if ((fields < 10) || (fields > 11)) {
6626 continue;
6627 }
d67f4aaa
MI		 6628 if (h2g_valid(min)) {
6629 int flags = page_get_flags(h2g(min));
ebf9a363 6630 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1;
d67f4aaa
MI		 6631 if (page_check_range(h2g(min), max - min, flags) == -1) {
6632 continue;
6633 }
6634 if (h2g(min) == ts->info->stack_limit) {
6635 pstrcpy(path, sizeof(path), " [stack]");
6636 }
3e23de15 6637 dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
e24fed4e 6638 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
d67f4aaa 6639 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
1a49ef2a 6640 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 6641 path[0] ? " " : "", path);
1a49ef2a
AG		 6642 }
6643 }
6644
6645 free(line);
6646 fclose(fp);
6647
36c08d49
AG		 6648 return 0;
6649}
6650
480b8e7d
AG		 6651static int open_self_stat(void *cpu_env, int fd)
6652{
0429a971
AF		 6653 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6654 TaskState *ts = cpu->opaque;
480b8e7d
AG		 6655 abi_ulong start_stack = ts->info->start_stack;
6656 int i;
6657
6658 for (i = 0; i < 44; i++) {
6659 char buf[128];
6660 int len;
6661 uint64_t val = 0;
6662
e0e65bee
FE		 6663 if (i == 0) {
6664 /* pid */
6665 val = getpid();
6666 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6667 } else if (i == 1) {
6668 /* app name */
6669 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6670 } else if (i == 27) {
6671 /* stack bottom */
6672 val = start_stack;
6673 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6674 } else {
6675 /* for the rest, there is MasterCard */
6676 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 6677 }
e0e65bee 6678
480b8e7d
AG		 6679 len = strlen(buf);
6680 if (write(fd, buf, len) != len) {
6681 return -1;
6682 }
6683 }
6684
6685 return 0;
6686}
6687
257450ee
AG		 6688static int open_self_auxv(void *cpu_env, int fd)
6689{
0429a971
AF		 6690 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6691 TaskState *ts = cpu->opaque;
257450ee
AG		 6692 abi_ulong auxv = ts->info->saved_auxv;
6693 abi_ulong len = ts->info->auxv_len;
6694 char *ptr;
6695
6696 /*
6697 * Auxiliary vector is stored in target process stack.
6698 * read in whole auxv vector and copy it to file
6699 */
6700 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6701 if (ptr != NULL) {
6702 while (len > 0) {
6703 ssize_t r;
6704 r = write(fd, ptr, len);
6705 if (r <= 0) {
6706 break;
6707 }
6708 len -= r;
6709 ptr += r;
6710 }
6711 lseek(fd, 0, SEEK_SET);
6712 unlock_user(ptr, auxv, len);
6713 }
6714
6715 return 0;
6716}
6717
463d8e73
AS		 6718static int is_proc_myself(const char *filename, const char *entry)
6719{
6720 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6721 filename += strlen("/proc/");
6722 if (!strncmp(filename, "self/", strlen("self/"))) {
6723 filename += strlen("self/");
6724 } else if (*filename >= '1' && *filename <= '9') {
6725 char myself[80];
6726 snprintf(myself, sizeof(myself), "%d/", getpid());
6727 if (!strncmp(filename, myself, strlen(myself))) {
6728 filename += strlen(myself);
6729 } else {
6730 return 0;
6731 }
6732 } else {
6733 return 0;
6734 }
6735 if (!strcmp(filename, entry)) {
6736 return 1;
6737 }
6738 }
6739 return 0;
6740}
6741
de6b9933
LV		 6742#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6743static int is_proc(const char *filename, const char *entry)
6744{
6745 return strcmp(filename, entry) == 0;
6746}
6747
6748static int open_net_route(void *cpu_env, int fd)
6749{
6750 FILE *fp;
6751 char *line = NULL;
6752 size_t len = 0;
6753 ssize_t read;
6754
6755 fp = fopen("/proc/net/route", "r");
6756 if (fp == NULL) {
a3ca7bb2 6757 return -1;
de6b9933
LV		 6758 }
6759
6760 /* read header */
6761
6762 read = getline(&line, &len, fp);
6763 dprintf(fd, "%s", line);
6764
6765 /* read routes */
6766
6767 while ((read = getline(&line, &len, fp)) != -1) {
6768 char iface[16];
6769 uint32_t dest, gw, mask;
6770 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
9d0bd0cd
PM		 6771 int fields;
6772
6773 fields = sscanf(line,
6774 "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6775 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
6776 &mask, &mtu, &window, &irtt);
6777 if (fields != 11) {
6778 continue;
6779 }
de6b9933
LV		 6780 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6781 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
6782 metric, tswap32(mask), mtu, window, irtt);
6783 }
6784
6785 free(line);
6786 fclose(fp);
6787
6788 return 0;
6789}
6790#endif
6791
0b2effd7 6792static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 6793{
6794 struct fake_open {
6795 const char *filename;
6796 int (*fill)(void *cpu_env, int fd);
de6b9933 6797 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 6798 };
6799 const struct fake_open *fake_open;
6800 static const struct fake_open fakes[] = {
de6b9933
LV		 6801 { "maps", open_self_maps, is_proc_myself },
6802 { "stat", open_self_stat, is_proc_myself },
6803 { "auxv", open_self_auxv, is_proc_myself },
76b94245 6804 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 6805#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6806 { "/proc/net/route", open_net_route, is_proc },
6807#endif
6808 { NULL, NULL, NULL }
3be14d05
AG		 6809 };
6810
aa07f5ec
MO		 6811 if (is_proc_myself(pathname, "exe")) {
6812 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 6813 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 6814 }
6815
3be14d05 6816 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 6817 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 6818 break;
6819 }
6820 }
6821
6822 if (fake_open->filename) {
6823 const char *tmpdir;
6824 char filename[PATH_MAX];
6825 int fd, r;
6826
6827 /* create temporary file to map stat to */
6828 tmpdir = getenv("TMPDIR");
6829 if (!tmpdir)
6830 tmpdir = "/tmp";
6831 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
6832 fd = mkstemp(filename);
6833 if (fd < 0) {
6834 return fd;
6835 }
6836 unlink(filename);
6837
6838 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 6839 int e = errno;
3be14d05 6840 close(fd);
a3ca7bb2 6841 errno = e;
3be14d05
AG		 6842 return r;
6843 }
6844 lseek(fd, 0, SEEK_SET);
6845
6846 return fd;
6847 }
6848
c10a0738 6849 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 6850}
6851
aecc8861
AG		 6852#define TIMER_MAGIC 0x0caf0000
6853#define TIMER_MAGIC_MASK 0xffff0000
6854
6855/* Convert QEMU provided timer ID back to internal 16bit index format */
6856static target_timer_t get_timer_id(abi_long arg)
6857{
6858 target_timer_t timerid = arg;
6859
6860 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
6861 return -TARGET_EINVAL;
6862 }
6863
6864 timerid &= 0xffff;
6865
6866 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
6867 return -TARGET_EINVAL;
6868 }
6869
6870 return timerid;
6871}
6872
2e0a8713
ST		 6873static int target_to_host_cpu_mask(unsigned long *host_mask,
6874 size_t host_size,
6875 abi_ulong target_addr,
6876 size_t target_size)
6877{
6878 unsigned target_bits = sizeof(abi_ulong) * 8;
6879 unsigned host_bits = sizeof(*host_mask) * 8;
6880 abi_ulong *target_mask;
6881 unsigned i, j;
6882
6883 assert(host_size >= target_size);
6884
6885 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
6886 if (!target_mask) {
6887 return -TARGET_EFAULT;
6888 }
6889 memset(host_mask, 0, host_size);
6890
6891 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6892 unsigned bit = i * target_bits;
6893 abi_ulong val;
6894
6895 __get_user(val, &target_mask[i]);
6896 for (j = 0; j < target_bits; j++, bit++) {
6897 if (val & (1UL << j)) {
6898 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
6899 }
6900 }
6901 }
6902
6903 unlock_user(target_mask, target_addr, 0);
6904 return 0;
6905}
6906
6907static int host_to_target_cpu_mask(const unsigned long *host_mask,
6908 size_t host_size,
6909 abi_ulong target_addr,
6910 size_t target_size)
6911{
6912 unsigned target_bits = sizeof(abi_ulong) * 8;
6913 unsigned host_bits = sizeof(*host_mask) * 8;
6914 abi_ulong *target_mask;
6915 unsigned i, j;
6916
6917 assert(host_size >= target_size);
6918
6919 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
6920 if (!target_mask) {
6921 return -TARGET_EFAULT;
6922 }
6923
6924 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6925 unsigned bit = i * target_bits;
6926 abi_ulong val = 0;
6927
6928 for (j = 0; j < target_bits; j++, bit++) {
6929 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
6930 val |= 1UL << j;
6931 }
6932 }
6933 __put_user(val, &target_mask[i]);
6934 }
6935
6936 unlock_user(target_mask, target_addr, target_size);
6937 return 0;
6938}
6939
dc1ce18b
RH		 6940/* This is an internal helper for do_syscall so that it is easier
6941 * to have a single return point, so that actions, such as logging
6942 * of syscall results, can be performed.
6943 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
6944 */
6945static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
6946 abi_long arg2, abi_long arg3, abi_long arg4,
6947 abi_long arg5, abi_long arg6, abi_long arg7,
6948 abi_long arg8)
31e31b8a 6949{
182735ef 6950 CPUState *cpu = ENV_GET_CPU(cpu_env);
992f48a0 6951 abi_long ret;
4f7f8924
AR		 6952#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
6953 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
6954 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
31e31b8a 6955 struct stat st;
4f7f8924
AR		 6956#endif
6957#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
6958 || defined(TARGET_NR_fstatfs)
56c8f68f 6959 struct statfs stfs;
4f7f8924 6960#endif
53a5960a 6961 void *p;
3b46e624 6962
31e31b8a
FB		 6963 switch(num) {
6964 case TARGET_NR_exit:
9b056fcc
AF		 6965 /* In old applications this may be used to implement _exit(2).
6966 However in threaded applictions it is used for thread termination,
6967 and _exit_group is used for application termination.
6968 Do thread termination if we have more then one thread. */
a0995886
TB		 6969
6970 if (block_signals()) {
72eb7ea8 6971 return -TARGET_ERESTARTSYS;
a0995886
TB		 6972 }
6973
dd1f6349
AB		 6974 cpu_list_lock();
6975
bdc44640 6976 if (CPU_NEXT(first_cpu)) {
9b056fcc 6977 TaskState *ts;
9b056fcc 6978
9b056fcc 6979 /* Remove the CPU from the list. */
068a5ea0 6980 QTAILQ_REMOVE_RCU(&cpus, cpu, node);
dd1f6349 6981
9b056fcc 6982 cpu_list_unlock();
dd1f6349 6983
0429a971 6984 ts = cpu->opaque;
9b056fcc
AF		 6985 if (ts->child_tidptr) {
6986 put_user_u32(0, ts->child_tidptr);
6987 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
6988 NULL, NULL, 0);
6989 }
a2247f8e 6990 thread_cpu = NULL;
0429a971 6991 object_unref(OBJECT(cpu));
9b056fcc 6992 g_free(ts);
70903763 6993 rcu_unregister_thread();
9b056fcc
AF		 6994 pthread_exit(NULL);
6995 }
dd1f6349
AB		 6996
6997 cpu_list_unlock();
708b6a64 6998 preexit_cleanup(cpu_env, arg1);
c2764719 6999 _exit(arg1);
72eb7ea8 7000 return 0; /* avoid warning */
31e31b8a 7001 case TARGET_NR_read:
72eb7ea8
RH		 7002 if (arg3 == 0) {
7003 return 0;
7004 } else {
38d840e6 7005 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
2852aafd 7006 return -TARGET_EFAULT;
50afd02b 7007 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 7008 if (ret >= 0 &&
5d4d3665
LV		 7009 fd_trans_host_to_target_data(arg1)) {
7010 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 7011 }
38d840e6
AJ		 7012 unlock_user(p, arg2, ret);
7013 }
72eb7ea8 7014 return ret;
31e31b8a 7015 case TARGET_NR_write:
58cfa6c2
TGJ		 7016 if (arg2 == 0 && arg3 == 0) {
7017 return get_errno(safe_write(arg1, 0, 0));
7018 }
579a97f7 7019 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
2852aafd 7020 return -TARGET_EFAULT;
04b9bcf9
LV		 7021 if (fd_trans_target_to_host_data(arg1)) {
7022 void *copy = g_malloc(arg3);
7023 memcpy(copy, p, arg3);
7024 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
7025 if (ret >= 0) {
7026 ret = get_errno(safe_write(arg1, copy, ret));
7027 }
7028 g_free(copy);
7029 } else {
7030 ret = get_errno(safe_write(arg1, p, arg3));
7031 }
53a5960a 7032 unlock_user(p, arg2, 0);
72eb7ea8
RH		 7033 return ret;
7034
704eff6c 7035#ifdef TARGET_NR_open
31e31b8a 7036 case TARGET_NR_open:
2f619698 7037 if (!(p = lock_user_string(arg1)))
2852aafd 7038 return -TARGET_EFAULT;
0b2effd7
RV		 7039 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
7040 target_to_host_bitmask(arg2, fcntl_flags_tbl),
7041 arg3));
e36800c9 7042 fd_trans_unregister(ret);
53a5960a 7043 unlock_user(p, arg1, 0);
72eb7ea8 7044 return ret;
704eff6c 7045#endif
82424832 7046 case TARGET_NR_openat:
579a97f7 7047 if (!(p = lock_user_string(arg2)))
2852aafd 7048 return -TARGET_EFAULT;
0b2effd7
RV		 7049 ret = get_errno(do_openat(cpu_env, arg1, p,
7050 target_to_host_bitmask(arg3, fcntl_flags_tbl),
7051 arg4));
e36800c9 7052 fd_trans_unregister(ret);
579a97f7 7053 unlock_user(p, arg2, 0);
72eb7ea8 7054 return ret;
0f0426f3
LV		 7055#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7056 case TARGET_NR_name_to_handle_at:
7057 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
72eb7ea8 7058 return ret;
0f0426f3
LV		 7059#endif
7060#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7061 case TARGET_NR_open_by_handle_at:
7062 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 7063 fd_trans_unregister(ret);
72eb7ea8 7064 return ret;
0f0426f3 7065#endif
31e31b8a 7066 case TARGET_NR_close:
e36800c9 7067 fd_trans_unregister(arg1);
72eb7ea8
RH		 7068 return get_errno(close(arg1));
7069
31e31b8a 7070 case TARGET_NR_brk:
72eb7ea8 7071 return do_brk(arg1);
704eff6c 7072#ifdef TARGET_NR_fork
31e31b8a 7073 case TARGET_NR_fork:
72eb7ea8 7074 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
704eff6c 7075#endif
e5febef5 7076#ifdef TARGET_NR_waitpid
31e31b8a
FB		 7077 case TARGET_NR_waitpid:
7078 {
53a5960a 7079 int status;
4af80a37 7080 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 7081 if (!is_error(ret) && arg2 && ret
1d9d8b55 7082 && put_user_s32(host_to_target_waitstatus(status), arg2))
2852aafd 7083 return -TARGET_EFAULT;
31e31b8a 7084 }
72eb7ea8 7085 return ret;
e5febef5 7086#endif
f0cbb613
PB		 7087#ifdef TARGET_NR_waitid
7088 case TARGET_NR_waitid:
7089 {
7090 siginfo_t info;
7091 info.si_pid = 0;
4af80a37 7092 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 7093 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 7094 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
2852aafd 7095 return -TARGET_EFAULT;
f0cbb613 7096 host_to_target_siginfo(p, &info);
c227f099 7097 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 7098 }
7099 }
72eb7ea8 7100 return ret;
f0cbb613 7101#endif
7a3148a9 7102#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 7103 case TARGET_NR_creat:
579a97f7 7104 if (!(p = lock_user_string(arg1)))
2852aafd 7105 return -TARGET_EFAULT;
53a5960a 7106 ret = get_errno(creat(p, arg2));
e36800c9 7107 fd_trans_unregister(ret);
53a5960a 7108 unlock_user(p, arg1, 0);
72eb7ea8 7109 return ret;
7a3148a9 7110#endif
704eff6c 7111#ifdef TARGET_NR_link
31e31b8a 7112 case TARGET_NR_link:
53a5960a
PB		 7113 {
7114 void * p2;
7115 p = lock_user_string(arg1);
7116 p2 = lock_user_string(arg2);
579a97f7
FB		 7117 if (!p || !p2)
7118 ret = -TARGET_EFAULT;
7119 else
7120 ret = get_errno(link(p, p2));
53a5960a
PB		 7121 unlock_user(p2, arg2, 0);
7122 unlock_user(p, arg1, 0);
7123 }
72eb7ea8 7124 return ret;
704eff6c 7125#endif
c0d472b1 7126#if defined(TARGET_NR_linkat)
64f0ce4c 7127 case TARGET_NR_linkat:
64f0ce4c
TS		 7128 {
7129 void * p2 = NULL;
579a97f7 7130 if (!arg2 || !arg4)
2852aafd 7131 return -TARGET_EFAULT;
64f0ce4c
TS		 7132 p = lock_user_string(arg2);
7133 p2 = lock_user_string(arg4);
579a97f7 7134 if (!p || !p2)
0da46a6e 7135 ret = -TARGET_EFAULT;
64f0ce4c 7136 else
c0d472b1 7137 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 7138 unlock_user(p, arg2, 0);
7139 unlock_user(p2, arg4, 0);
64f0ce4c 7140 }
72eb7ea8 7141 return ret;
64f0ce4c 7142#endif
704eff6c 7143#ifdef TARGET_NR_unlink
31e31b8a 7144 case TARGET_NR_unlink:
579a97f7 7145 if (!(p = lock_user_string(arg1)))
2852aafd 7146 return -TARGET_EFAULT;
53a5960a
PB		 7147 ret = get_errno(unlink(p));
7148 unlock_user(p, arg1, 0);
72eb7ea8 7149 return ret;
704eff6c 7150#endif
c0d472b1 7151#if defined(TARGET_NR_unlinkat)
8170f56b 7152 case TARGET_NR_unlinkat:
579a97f7 7153 if (!(p = lock_user_string(arg2)))
2852aafd 7154 return -TARGET_EFAULT;
c0d472b1 7155 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 7156 unlock_user(p, arg2, 0);
72eb7ea8 7157 return ret;
b7d35e65 7158#endif
31e31b8a 7159 case TARGET_NR_execve:
7854b056
FB		 7160 {
7161 char **argp, **envp;
f7341ff4 7162 int argc, envc;
992f48a0
BS		 7163 abi_ulong gp;
7164 abi_ulong guest_argp;
7165 abi_ulong guest_envp;
7166 abi_ulong addr;
7854b056 7167 char **q;
a6f79cc9 7168 int total_size = 0;
7854b056 7169
f7341ff4 7170 argc = 0;
53a5960a 7171 guest_argp = arg2;
da94d263 7172 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7173 if (get_user_ual(addr, gp))
2852aafd 7174 return -TARGET_EFAULT;
03aa1976 7175 if (!addr)
2f619698 7176 break;
7854b056 7177 argc++;
2f619698 7178 }
f7341ff4 7179 envc = 0;
53a5960a 7180 guest_envp = arg3;
da94d263 7181 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7182 if (get_user_ual(addr, gp))
2852aafd 7183 return -TARGET_EFAULT;
03aa1976 7184 if (!addr)
2f619698 7185 break;
7854b056 7186 envc++;
2f619698 7187 }
7854b056 7188
b936cb50
PP		 7189 argp = g_new0(char *, argc + 1);
7190 envp = g_new0(char *, envc + 1);
7854b056 7191
da94d263 7192 for (gp = guest_argp, q = argp; gp;
992f48a0 7193 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7194 if (get_user_ual(addr, gp))
7195 goto execve_efault;
53a5960a
PB		 7196 if (!addr)
7197 break;
2f619698
FB		 7198 if (!(*q = lock_user_string(addr)))
7199 goto execve_efault;
a6f79cc9 7200 total_size += strlen(*q) + 1;
53a5960a 7201 }
f7341ff4
FB		 7202 *q = NULL;
7203
da94d263 7204 for (gp = guest_envp, q = envp; gp;
992f48a0 7205 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7206 if (get_user_ual(addr, gp))
7207 goto execve_efault;
53a5960a
PB		 7208 if (!addr)
7209 break;
2f619698
FB		 7210 if (!(*q = lock_user_string(addr)))
7211 goto execve_efault;
a6f79cc9 7212 total_size += strlen(*q) + 1;
53a5960a 7213 }
f7341ff4 7214 *q = NULL;
7854b056 7215
2f619698
FB		 7216 if (!(p = lock_user_string(arg1)))
7217 goto execve_efault;
ffdcbe22
TB		 7218 /* Although execve() is not an interruptible syscall it is
7219 * a special case where we must use the safe_syscall wrapper:
7220 * if we allow a signal to happen before we make the host
7221 * syscall then we will 'lose' it, because at the point of
7222 * execve the process leaves QEMU's control. So we use the
7223 * safe syscall wrapper to ensure that we either take the
7224 * signal as a guest signal, or else it does not happen
7225 * before the execve completes and makes it the other
7226 * program's problem.
7227 */
7228 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 7229 unlock_user(p, arg1, 0);
7230
2f619698
FB		 7231 goto execve_end;
7232
7233 execve_efault:
7234 ret = -TARGET_EFAULT;
7235
7236 execve_end:
53a5960a 7237 for (gp = guest_argp, q = argp; *q;
992f48a0 7238 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7239 if (get_user_ual(addr, gp)
7240 || !addr)
7241 break;
53a5960a
PB		 7242 unlock_user(*q, addr, 0);
7243 }
7244 for (gp = guest_envp, q = envp; *q;
992f48a0 7245 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7246 if (get_user_ual(addr, gp)
7247 || !addr)
7248 break;
53a5960a
PB		 7249 unlock_user(*q, addr, 0);
7250 }
b936cb50
PP		 7251
7252 g_free(argp);
7253 g_free(envp);
7854b056 7254 }
72eb7ea8 7255 return ret;
31e31b8a 7256 case TARGET_NR_chdir:
579a97f7 7257 if (!(p = lock_user_string(arg1)))
2852aafd 7258 return -TARGET_EFAULT;
53a5960a
PB		 7259 ret = get_errno(chdir(p));
7260 unlock_user(p, arg1, 0);
72eb7ea8 7261 return ret;
a315a145 7262#ifdef TARGET_NR_time
31e31b8a
FB		 7263 case TARGET_NR_time:
7264 {
53a5960a
PB		 7265 time_t host_time;
7266 ret = get_errno(time(&host_time));
2f619698
FB		 7267 if (!is_error(ret)
7268 && arg1
7269 && put_user_sal(host_time, arg1))
2852aafd 7270 return -TARGET_EFAULT;
31e31b8a 7271 }
72eb7ea8 7272 return ret;
a315a145 7273#endif
704eff6c 7274#ifdef TARGET_NR_mknod
31e31b8a 7275 case TARGET_NR_mknod:
579a97f7 7276 if (!(p = lock_user_string(arg1)))
2852aafd 7277 return -TARGET_EFAULT;
53a5960a
PB		 7278 ret = get_errno(mknod(p, arg2, arg3));
7279 unlock_user(p, arg1, 0);
72eb7ea8 7280 return ret;
704eff6c 7281#endif
c0d472b1 7282#if defined(TARGET_NR_mknodat)
75ac37a0 7283 case TARGET_NR_mknodat:
579a97f7 7284 if (!(p = lock_user_string(arg2)))
2852aafd 7285 return -TARGET_EFAULT;
c0d472b1 7286 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 7287 unlock_user(p, arg2, 0);
72eb7ea8 7288 return ret;
75ac37a0 7289#endif
704eff6c 7290#ifdef TARGET_NR_chmod
31e31b8a 7291 case TARGET_NR_chmod:
579a97f7 7292 if (!(p = lock_user_string(arg1)))
2852aafd 7293 return -TARGET_EFAULT;
53a5960a
PB		 7294 ret = get_errno(chmod(p, arg2));
7295 unlock_user(p, arg1, 0);
72eb7ea8 7296 return ret;
704eff6c 7297#endif
4f7f8924 7298#ifdef TARGET_NR_lseek
31e31b8a 7299 case TARGET_NR_lseek:
72eb7ea8 7300 return get_errno(lseek(arg1, arg2, arg3));
4f7f8924 7301#endif
9231733a
RH		 7302#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
7303 /* Alpha specific */
7a3148a9 7304 case TARGET_NR_getxpid:
9231733a 7305 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
72eb7ea8 7306 return get_errno(getpid());
7a3148a9 7307#endif
9231733a
RH		 7308#ifdef TARGET_NR_getpid
7309 case TARGET_NR_getpid:
72eb7ea8 7310 return get_errno(getpid());
9231733a 7311#endif
31e31b8a 7312 case TARGET_NR_mount:
356d771b
PB		 7313 {
7314 /* need to look at the data field */
7315 void *p2, *p3;
7316
7317 if (arg1) {
7318 p = lock_user_string(arg1);
7319 if (!p) {
2852aafd 7320 return -TARGET_EFAULT;
356d771b
PB		 7321 }
7322 } else {
7323 p = NULL;
7324 }
7325
7326 p2 = lock_user_string(arg2);
7327 if (!p2) {
7328 if (arg1) {
7329 unlock_user(p, arg1, 0);
7330 }
2852aafd 7331 return -TARGET_EFAULT;
356d771b
PB		 7332 }
7333
7334 if (arg3) {
7335 p3 = lock_user_string(arg3);
7336 if (!p3) {
7337 if (arg1) {
579a97f7 7338 unlock_user(p, arg1, 0);
356d771b
PB		 7339 }
7340 unlock_user(p2, arg2, 0);
2852aafd 7341 return -TARGET_EFAULT;
356d771b
PB		 7342 }
7343 } else {
7344 p3 = NULL;
7345 }
7346
7347 /* FIXME - arg5 should be locked, but it isn't clear how to
7348 * do that since it's not guaranteed to be a NULL-terminated
7349 * string.
7350 */
7351 if (!arg5) {
7352 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7353 } else {
7354 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7355 }
7356 ret = get_errno(ret);
7357
7358 if (arg1) {
7359 unlock_user(p, arg1, 0);
7360 }
7361 unlock_user(p2, arg2, 0);
7362 if (arg3) {
7363 unlock_user(p3, arg3, 0);
7364 }
7365 }
72eb7ea8 7366 return ret;
e5febef5 7367#ifdef TARGET_NR_umount
31e31b8a 7368 case TARGET_NR_umount:
579a97f7 7369 if (!(p = lock_user_string(arg1)))
2852aafd 7370 return -TARGET_EFAULT;
53a5960a
PB		 7371 ret = get_errno(umount(p));
7372 unlock_user(p, arg1, 0);
72eb7ea8 7373 return ret;
e5febef5 7374#endif
7a3148a9 7375#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 7376 case TARGET_NR_stime:
7377 {
53a5960a 7378 time_t host_time;
2f619698 7379 if (get_user_sal(host_time, arg1))
2852aafd 7380 return -TARGET_EFAULT;
72eb7ea8 7381 return get_errno(stime(&host_time));
31e31b8a 7382 }
7a3148a9 7383#endif
7a3148a9 7384#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a 7385 case TARGET_NR_alarm:
72eb7ea8 7386 return alarm(arg1);
7a3148a9 7387#endif
7a3148a9 7388#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 7389 case TARGET_NR_pause:
f59ec606
TB		 7390 if (!block_signals()) {
7391 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7392 }
72eb7ea8 7393 return -TARGET_EINTR;
7a3148a9 7394#endif
e5febef5 7395#ifdef TARGET_NR_utime
31e31b8a 7396 case TARGET_NR_utime:
ebc05488 7397 {
53a5960a
PB		 7398 struct utimbuf tbuf, *host_tbuf;
7399 struct target_utimbuf *target_tbuf;
7400 if (arg2) {
579a97f7 7401 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
2852aafd 7402 return -TARGET_EFAULT;
cbb21eed
MB		 7403 tbuf.actime = tswapal(target_tbuf->actime);
7404 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 7405 unlock_user_struct(target_tbuf, arg2, 0);
7406 host_tbuf = &tbuf;
f72e8ff4 7407 } else {
53a5960a 7408 host_tbuf = NULL;
f72e8ff4 7409 }
579a97f7 7410 if (!(p = lock_user_string(arg1)))
2852aafd 7411 return -TARGET_EFAULT;
53a5960a
PB		 7412 ret = get_errno(utime(p, host_tbuf));
7413 unlock_user(p, arg1, 0);
ebc05488 7414 }
72eb7ea8 7415 return ret;
e5febef5 7416#endif
704eff6c 7417#ifdef TARGET_NR_utimes
978a66ff
FB		 7418 case TARGET_NR_utimes:
7419 {
978a66ff 7420 struct timeval *tvp, tv[2];
53a5960a 7421 if (arg2) {
788f5ec4
TS		 7422 if (copy_from_user_timeval(&tv[0], arg2)
7423 || copy_from_user_timeval(&tv[1],
7424 arg2 + sizeof(struct target_timeval)))
2852aafd 7425 return -TARGET_EFAULT;
978a66ff
FB		 7426 tvp = tv;
7427 } else {
7428 tvp = NULL;
7429 }
579a97f7 7430 if (!(p = lock_user_string(arg1)))
2852aafd 7431 return -TARGET_EFAULT;
53a5960a
PB		 7432 ret = get_errno(utimes(p, tvp));
7433 unlock_user(p, arg1, 0);
978a66ff 7434 }
72eb7ea8 7435 return ret;
704eff6c 7436#endif
c0d472b1 7437#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 7438 case TARGET_NR_futimesat:
7439 {
7440 struct timeval *tvp, tv[2];
7441 if (arg3) {
7442 if (copy_from_user_timeval(&tv[0], arg3)
7443 || copy_from_user_timeval(&tv[1],
7444 arg3 + sizeof(struct target_timeval)))
2852aafd 7445 return -TARGET_EFAULT;
ac8a6556
AZ		 7446 tvp = tv;
7447 } else {
7448 tvp = NULL;
7449 }
2852aafd
RH		 7450 if (!(p = lock_user_string(arg2))) {
7451 return -TARGET_EFAULT;
7452 }
c0d472b1 7453 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 7454 unlock_user(p, arg2, 0);
7455 }
72eb7ea8 7456 return ret;
ac8a6556 7457#endif
704eff6c 7458#ifdef TARGET_NR_access
31e31b8a 7459 case TARGET_NR_access:
2852aafd
RH		 7460 if (!(p = lock_user_string(arg1))) {
7461 return -TARGET_EFAULT;
7462 }
719f908e 7463 ret = get_errno(access(path(p), arg2));
53a5960a 7464 unlock_user(p, arg1, 0);
72eb7ea8 7465 return ret;
704eff6c 7466#endif
92a34c10
TS		 7467#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7468 case TARGET_NR_faccessat:
2852aafd
RH		 7469 if (!(p = lock_user_string(arg2))) {
7470 return -TARGET_EFAULT;
7471 }
c0d472b1 7472 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 7473 unlock_user(p, arg2, 0);
72eb7ea8 7474 return ret;
92a34c10 7475#endif
7a3148a9 7476#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a 7477 case TARGET_NR_nice:
72eb7ea8 7478 return get_errno(nice(arg1));
ebc05488 7479#endif
31e31b8a 7480 case TARGET_NR_sync:
04369ff2 7481 sync();
72eb7ea8 7482 return 0;
5a03cd00
AM		 7483#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
7484 case TARGET_NR_syncfs:
72eb7ea8 7485 return get_errno(syncfs(arg1));
5a03cd00 7486#endif
31e31b8a 7487 case TARGET_NR_kill:
72eb7ea8 7488 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
704eff6c 7489#ifdef TARGET_NR_rename
31e31b8a 7490 case TARGET_NR_rename:
53a5960a
PB		 7491 {
7492 void *p2;
7493 p = lock_user_string(arg1);
7494 p2 = lock_user_string(arg2);
579a97f7
FB		 7495 if (!p || !p2)
7496 ret = -TARGET_EFAULT;
7497 else
7498 ret = get_errno(rename(p, p2));
53a5960a
PB		 7499 unlock_user(p2, arg2, 0);
7500 unlock_user(p, arg1, 0);
7501 }
72eb7ea8 7502 return ret;
704eff6c 7503#endif
c0d472b1 7504#if defined(TARGET_NR_renameat)
722183f6 7505 case TARGET_NR_renameat:
722183f6 7506 {
579a97f7 7507 void *p2;
722183f6
TS		 7508 p = lock_user_string(arg2);
7509 p2 = lock_user_string(arg4);
579a97f7 7510 if (!p || !p2)
0da46a6e 7511 ret = -TARGET_EFAULT;
722183f6 7512 else
c0d472b1 7513 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 7514 unlock_user(p2, arg4, 0);
7515 unlock_user(p, arg2, 0);
722183f6 7516 }
72eb7ea8 7517 return ret;
95d0307c
AS		 7518#endif
7519#if defined(TARGET_NR_renameat2)
7520 case TARGET_NR_renameat2:
7521 {
7522 void *p2;
7523 p = lock_user_string(arg2);
7524 p2 = lock_user_string(arg4);
7525 if (!p || !p2) {
7526 ret = -TARGET_EFAULT;
7527 } else {
7528 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
7529 }
7530 unlock_user(p2, arg4, 0);
7531 unlock_user(p, arg2, 0);
7532 }
72eb7ea8 7533 return ret;
722183f6 7534#endif
704eff6c 7535#ifdef TARGET_NR_mkdir
31e31b8a 7536 case TARGET_NR_mkdir:
579a97f7 7537 if (!(p = lock_user_string(arg1)))
2852aafd 7538 return -TARGET_EFAULT;
53a5960a
PB		 7539 ret = get_errno(mkdir(p, arg2));
7540 unlock_user(p, arg1, 0);
72eb7ea8 7541 return ret;
704eff6c 7542#endif
c0d472b1 7543#if defined(TARGET_NR_mkdirat)
4472ad0d 7544 case TARGET_NR_mkdirat:
579a97f7 7545 if (!(p = lock_user_string(arg2)))
2852aafd 7546 return -TARGET_EFAULT;
c0d472b1 7547 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 7548 unlock_user(p, arg2, 0);
72eb7ea8 7549 return ret;
4472ad0d 7550#endif
704eff6c 7551#ifdef TARGET_NR_rmdir
31e31b8a 7552 case TARGET_NR_rmdir:
579a97f7 7553 if (!(p = lock_user_string(arg1)))
2852aafd 7554 return -TARGET_EFAULT;
53a5960a
PB		 7555 ret = get_errno(rmdir(p));
7556 unlock_user(p, arg1, 0);
72eb7ea8 7557 return ret;
704eff6c 7558#endif
31e31b8a
FB		 7559 case TARGET_NR_dup:
7560 ret = get_errno(dup(arg1));
e36800c9
LV		 7561 if (ret >= 0) {
7562 fd_trans_dup(arg1, ret);
7563 }
72eb7ea8 7564 return ret;
704eff6c 7565#ifdef TARGET_NR_pipe
31e31b8a 7566 case TARGET_NR_pipe:
72eb7ea8 7567 return do_pipe(cpu_env, arg1, 0, 0);
704eff6c 7568#endif
099d6b0f
RV		 7569#ifdef TARGET_NR_pipe2
7570 case TARGET_NR_pipe2:
72eb7ea8
RH		 7571 return do_pipe(cpu_env, arg1,
7572 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
099d6b0f 7573#endif
31e31b8a 7574 case TARGET_NR_times:
32f36bce 7575 {
53a5960a 7576 struct target_tms *tmsp;
32f36bce
FB		 7577 struct tms tms;
7578 ret = get_errno(times(&tms));
53a5960a 7579 if (arg1) {
579a97f7
FB		 7580 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7581 if (!tmsp)
2852aafd 7582 return -TARGET_EFAULT;
cbb21eed
MB		 7583 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7584 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7585 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7586 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 7587 }
c596ed17
FB		 7588 if (!is_error(ret))
7589 ret = host_to_target_clock_t(ret);
32f36bce 7590 }
72eb7ea8 7591 return ret;
31e31b8a 7592 case TARGET_NR_acct:
38d840e6
AJ		 7593 if (arg1 == 0) {
7594 ret = get_errno(acct(NULL));
7595 } else {
2852aafd
RH		 7596 if (!(p = lock_user_string(arg1))) {
7597 return -TARGET_EFAULT;
7598 }
38d840e6
AJ		 7599 ret = get_errno(acct(path(p)));
7600 unlock_user(p, arg1, 0);
7601 }
72eb7ea8 7602 return ret;
8070e7be 7603#ifdef TARGET_NR_umount2
31e31b8a 7604 case TARGET_NR_umount2:
579a97f7 7605 if (!(p = lock_user_string(arg1)))
2852aafd 7606 return -TARGET_EFAULT;
53a5960a
PB		 7607 ret = get_errno(umount2(p, arg2));
7608 unlock_user(p, arg1, 0);
72eb7ea8 7609 return ret;
ebc05488 7610#endif
31e31b8a 7611 case TARGET_NR_ioctl:
72eb7ea8 7612 return do_ioctl(arg1, arg2, arg3);
47ae93cd 7613#ifdef TARGET_NR_fcntl
31e31b8a 7614 case TARGET_NR_fcntl:
72eb7ea8 7615 return do_fcntl(arg1, arg2, arg3);
ebc05488 7616#endif
31e31b8a 7617 case TARGET_NR_setpgid:
72eb7ea8 7618 return get_errno(setpgid(arg1, arg2));
31e31b8a 7619 case TARGET_NR_umask:
72eb7ea8 7620 return get_errno(umask(arg1));
31e31b8a 7621 case TARGET_NR_chroot:
579a97f7 7622 if (!(p = lock_user_string(arg1)))
2852aafd 7623 return -TARGET_EFAULT;
53a5960a
PB		 7624 ret = get_errno(chroot(p));
7625 unlock_user(p, arg1, 0);
72eb7ea8 7626 return ret;
704eff6c 7627#ifdef TARGET_NR_dup2
31e31b8a
FB		 7628 case TARGET_NR_dup2:
7629 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 7630 if (ret >= 0) {
7631 fd_trans_dup(arg1, arg2);
7632 }
72eb7ea8 7633 return ret;
704eff6c 7634#endif
d0927938
UH		 7635#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7636 case TARGET_NR_dup3:
10fa993a
PM		 7637 {
7638 int host_flags;
7639
7640 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
7641 return -EINVAL;
7642 }
7643 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
7644 ret = get_errno(dup3(arg1, arg2, host_flags));
e36800c9
LV		 7645 if (ret >= 0) {
7646 fd_trans_dup(arg1, arg2);
7647 }
72eb7ea8 7648 return ret;
10fa993a 7649 }
d0927938 7650#endif
7a3148a9 7651#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a 7652 case TARGET_NR_getppid:
72eb7ea8 7653 return get_errno(getppid());
7a3148a9 7654#endif
704eff6c 7655#ifdef TARGET_NR_getpgrp
31e31b8a 7656 case TARGET_NR_getpgrp:
72eb7ea8 7657 return get_errno(getpgrp());
704eff6c 7658#endif
31e31b8a 7659 case TARGET_NR_setsid:
72eb7ea8 7660 return get_errno(setsid());
e5febef5 7661#ifdef TARGET_NR_sigaction
31e31b8a 7662 case TARGET_NR_sigaction:
31e31b8a 7663 {
6049f4f8
RH		 7664#if defined(TARGET_ALPHA)
7665 struct target_sigaction act, oact, *pact = 0;
53a5960a 7666 struct target_old_sigaction *old_act;
53a5960a 7667 if (arg2) {
579a97f7 7668 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7669 return -TARGET_EFAULT;
66fb9763
FB		 7670 act._sa_handler = old_act->_sa_handler;
7671 target_siginitset(&act.sa_mask, old_act->sa_mask);
7672 act.sa_flags = old_act->sa_flags;
6049f4f8 7673 act.sa_restorer = 0;
53a5960a 7674 unlock_user_struct(old_act, arg2, 0);
66fb9763 7675 pact = &act;
66fb9763
FB		 7676 }
7677 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 7678 if (!is_error(ret) && arg3) {
579a97f7 7679 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7680 return -TARGET_EFAULT;
53a5960a
PB		 7681 old_act->_sa_handler = oact._sa_handler;
7682 old_act->sa_mask = oact.sa_mask.sig[0];
7683 old_act->sa_flags = oact.sa_flags;
53a5960a 7684 unlock_user_struct(old_act, arg3, 1);
66fb9763 7685 }
6049f4f8 7686#elif defined(TARGET_MIPS)
106ec879
FB		 7687 struct target_sigaction act, oact, *pact, *old_act;
7688
7689 if (arg2) {
579a97f7 7690 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7691 return -TARGET_EFAULT;
106ec879
FB		 7692 act._sa_handler = old_act->_sa_handler;
7693 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7694 act.sa_flags = old_act->sa_flags;
7695 unlock_user_struct(old_act, arg2, 0);
7696 pact = &act;
7697 } else {
7698 pact = NULL;
7699 }
7700
7701 ret = get_errno(do_sigaction(arg1, pact, &oact));
7702
7703 if (!is_error(ret) && arg3) {
579a97f7 7704 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7705 return -TARGET_EFAULT;
106ec879
FB		 7706 old_act->_sa_handler = oact._sa_handler;
7707 old_act->sa_flags = oact.sa_flags;
7708 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7709 old_act->sa_mask.sig[1] = 0;
7710 old_act->sa_mask.sig[2] = 0;
7711 old_act->sa_mask.sig[3] = 0;
7712 unlock_user_struct(old_act, arg3, 1);
7713 }
6049f4f8
RH		 7714#else
7715 struct target_old_sigaction *old_act;
7716 struct target_sigaction act, oact, *pact;
7717 if (arg2) {
7718 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7719 return -TARGET_EFAULT;
6049f4f8
RH		 7720 act._sa_handler = old_act->_sa_handler;
7721 target_siginitset(&act.sa_mask, old_act->sa_mask);
7722 act.sa_flags = old_act->sa_flags;
7723 act.sa_restorer = old_act->sa_restorer;
5de154e8
LV		 7724#ifdef TARGET_ARCH_HAS_KA_RESTORER
7725 act.ka_restorer = 0;
7726#endif
6049f4f8
RH		 7727 unlock_user_struct(old_act, arg2, 0);
7728 pact = &act;
7729 } else {
7730 pact = NULL;
7731 }
7732 ret = get_errno(do_sigaction(arg1, pact, &oact));
7733 if (!is_error(ret) && arg3) {
7734 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7735 return -TARGET_EFAULT;
6049f4f8
RH		 7736 old_act->_sa_handler = oact._sa_handler;
7737 old_act->sa_mask = oact.sa_mask.sig[0];
7738 old_act->sa_flags = oact.sa_flags;
7739 old_act->sa_restorer = oact.sa_restorer;
7740 unlock_user_struct(old_act, arg3, 1);
7741 }
388bb21a 7742#endif
31e31b8a 7743 }
72eb7ea8 7744 return ret;
e5febef5 7745#endif
66fb9763 7746 case TARGET_NR_rt_sigaction:
53a5960a 7747 {
6049f4f8 7748#if defined(TARGET_ALPHA)
78bfef72
PM		 7749 /* For Alpha and SPARC this is a 5 argument syscall, with
7750 * a 'restorer' parameter which must be copied into the
7751 * sa_restorer field of the sigaction struct.
7752 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
7753 * and arg5 is the sigsetsize.
7754 * Alpha also has a separate rt_sigaction struct that it uses
7755 * here; SPARC uses the usual sigaction struct.
7756 */
6049f4f8 7757 struct target_rt_sigaction *rt_act;
78bfef72 7758 struct target_sigaction act, oact, *pact = 0;
c815701e
PM		 7759
7760 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7761 return -TARGET_EINVAL;
c815701e 7762 }
6049f4f8
RH		 7763 if (arg2) {
7764 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
2852aafd 7765 return -TARGET_EFAULT;
6049f4f8
RH		 7766 act._sa_handler = rt_act->_sa_handler;
7767 act.sa_mask = rt_act->sa_mask;
7768 act.sa_flags = rt_act->sa_flags;
7769 act.sa_restorer = arg5;
7770 unlock_user_struct(rt_act, arg2, 0);
7771 pact = &act;
7772 }
7773 ret = get_errno(do_sigaction(arg1, pact, &oact));
7774 if (!is_error(ret) && arg3) {
7775 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
2852aafd 7776 return -TARGET_EFAULT;
6049f4f8
RH		 7777 rt_act->_sa_handler = oact._sa_handler;
7778 rt_act->sa_mask = oact.sa_mask;
7779 rt_act->sa_flags = oact.sa_flags;
7780 unlock_user_struct(rt_act, arg3, 1);
7781 }
7782#else
78bfef72
PM		 7783#ifdef TARGET_SPARC
7784 target_ulong restorer = arg4;
7785 target_ulong sigsetsize = arg5;
7786#else
7787 target_ulong sigsetsize = arg4;
7788#endif
53a5960a
PB		 7789 struct target_sigaction *act;
7790 struct target_sigaction *oact;
7791
78bfef72 7792 if (sigsetsize != sizeof(target_sigset_t)) {
72eb7ea8 7793 return -TARGET_EINVAL;
c815701e 7794 }
579a97f7 7795 if (arg2) {
78bfef72 7796 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
2852aafd 7797 return -TARGET_EFAULT;
78bfef72 7798 }
5de154e8
LV		 7799#ifdef TARGET_ARCH_HAS_KA_RESTORER
7800 act->ka_restorer = restorer;
78bfef72
PM		 7801#endif
7802 } else {
53a5960a 7803 act = NULL;
78bfef72 7804 }
579a97f7
FB		 7805 if (arg3) {
7806 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
7807 ret = -TARGET_EFAULT;
7808 goto rt_sigaction_fail;
7809 }
7810 } else
53a5960a
PB		 7811 oact = NULL;
7812 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 7813 rt_sigaction_fail:
7814 if (act)
53a5960a 7815 unlock_user_struct(act, arg2, 0);
579a97f7 7816 if (oact)
53a5960a 7817 unlock_user_struct(oact, arg3, 1);
6049f4f8 7818#endif
53a5960a 7819 }
72eb7ea8 7820 return ret;
7a3148a9 7821#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 7822 case TARGET_NR_sgetmask:
66fb9763
FB		 7823 {
7824 sigset_t cur_set;
992f48a0 7825 abi_ulong target_set;
3d3efba0
PM		 7826 ret = do_sigprocmask(0, NULL, &cur_set);
7827 if (!ret) {
7828 host_to_target_old_sigset(&target_set, &cur_set);
7829 ret = target_set;
7830 }
66fb9763 7831 }
72eb7ea8 7832 return ret;
7a3148a9
JM		 7833#endif
7834#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 7835 case TARGET_NR_ssetmask:
66fb9763 7836 {
a8617d8c 7837 sigset_t set, oset;
992f48a0 7838 abi_ulong target_set = arg1;
66fb9763 7839 target_to_host_old_sigset(&set, &target_set);
3d3efba0
PM		 7840 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
7841 if (!ret) {
7842 host_to_target_old_sigset(&target_set, &oset);
7843 ret = target_set;
7844 }
66fb9763 7845 }
72eb7ea8 7846 return ret;
7a3148a9 7847#endif
e5febef5 7848#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 7849 case TARGET_NR_sigprocmask:
7850 {
a5b3b13b
RH		 7851#if defined(TARGET_ALPHA)
7852 sigset_t set, oldset;
7853 abi_ulong mask;
7854 int how;
7855
7856 switch (arg1) {
7857 case TARGET_SIG_BLOCK:
7858 how = SIG_BLOCK;
7859 break;
7860 case TARGET_SIG_UNBLOCK:
7861 how = SIG_UNBLOCK;
7862 break;
7863 case TARGET_SIG_SETMASK:
7864 how = SIG_SETMASK;
7865 break;
7866 default:
259841c1 7867 return -TARGET_EINVAL;
a5b3b13b
RH		 7868 }
7869 mask = arg2;
7870 target_to_host_old_sigset(&set, &mask);
7871
3d3efba0 7872 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 7873 if (!is_error(ret)) {
7874 host_to_target_old_sigset(&mask, &oldset);
7875 ret = mask;
0229f5a3 7876 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 7877 }
7878#else
66fb9763 7879 sigset_t set, oldset, *set_ptr;
a5b3b13b 7880 int how;
3b46e624 7881
53a5960a 7882 if (arg2) {
a5b3b13b 7883 switch (arg1) {
66fb9763
FB		 7884 case TARGET_SIG_BLOCK:
7885 how = SIG_BLOCK;
7886 break;
7887 case TARGET_SIG_UNBLOCK:
7888 how = SIG_UNBLOCK;
7889 break;
7890 case TARGET_SIG_SETMASK:
7891 how = SIG_SETMASK;
7892 break;
7893 default:
259841c1 7894 return -TARGET_EINVAL;
66fb9763 7895 }
c227f099 7896 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7897 return -TARGET_EFAULT;
53a5960a
PB		 7898 target_to_host_old_sigset(&set, p);
7899 unlock_user(p, arg2, 0);
66fb9763
FB		 7900 set_ptr = &set;
7901 } else {
7902 how = 0;
7903 set_ptr = NULL;
7904 }
3d3efba0 7905 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7906 if (!is_error(ret) && arg3) {
c227f099 7907 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7908 return -TARGET_EFAULT;
53a5960a 7909 host_to_target_old_sigset(p, &oldset);
c227f099 7910 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 7911 }
a5b3b13b 7912#endif
66fb9763 7913 }
72eb7ea8 7914 return ret;
e5febef5 7915#endif
66fb9763
FB		 7916 case TARGET_NR_rt_sigprocmask:
7917 {
7918 int how = arg1;
7919 sigset_t set, oldset, *set_ptr;
3b46e624 7920
c815701e 7921 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7922 return -TARGET_EINVAL;
c815701e
PM		 7923 }
7924
53a5960a 7925 if (arg2) {
66fb9763
FB		 7926 switch(how) {
7927 case TARGET_SIG_BLOCK:
7928 how = SIG_BLOCK;
7929 break;
7930 case TARGET_SIG_UNBLOCK:
7931 how = SIG_UNBLOCK;
7932 break;
7933 case TARGET_SIG_SETMASK:
7934 how = SIG_SETMASK;
7935 break;
7936 default:
259841c1 7937 return -TARGET_EINVAL;
66fb9763 7938 }
c227f099 7939 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7940 return -TARGET_EFAULT;
53a5960a
PB		 7941 target_to_host_sigset(&set, p);
7942 unlock_user(p, arg2, 0);
66fb9763
FB		 7943 set_ptr = &set;
7944 } else {
7945 how = 0;
7946 set_ptr = NULL;
7947 }
3d3efba0 7948 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7949 if (!is_error(ret) && arg3) {
c227f099 7950 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7951 return -TARGET_EFAULT;
53a5960a 7952 host_to_target_sigset(p, &oldset);
c227f099 7953 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 7954 }
7955 }
72eb7ea8 7956 return ret;
e5febef5 7957#ifdef TARGET_NR_sigpending
66fb9763
FB		 7958 case TARGET_NR_sigpending:
7959 {
7960 sigset_t set;
7961 ret = get_errno(sigpending(&set));
7962 if (!is_error(ret)) {
c227f099 7963 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7964 return -TARGET_EFAULT;
53a5960a 7965 host_to_target_old_sigset(p, &set);
c227f099 7966 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7967 }
7968 }
72eb7ea8 7969 return ret;
e5febef5 7970#endif
66fb9763
FB		 7971 case TARGET_NR_rt_sigpending:
7972 {
7973 sigset_t set;
c815701e
PM		 7974
7975 /* Yes, this check is >, not != like most. We follow the kernel's
7976 * logic and it does it like this because it implements
7977 * NR_sigpending through the same code path, and in that case
7978 * the old_sigset_t is smaller in size.
7979 */
7980 if (arg2 > sizeof(target_sigset_t)) {
72eb7ea8 7981 return -TARGET_EINVAL;
c815701e
PM		 7982 }
7983
66fb9763
FB		 7984 ret = get_errno(sigpending(&set));
7985 if (!is_error(ret)) {
c227f099 7986 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7987 return -TARGET_EFAULT;
53a5960a 7988 host_to_target_sigset(p, &set);
c227f099 7989 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7990 }
7991 }
72eb7ea8 7992 return ret;
e5febef5 7993#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 7994 case TARGET_NR_sigsuspend:
7995 {
3d3efba0 7996 TaskState *ts = cpu->opaque;
f43ce12b
RH		 7997#if defined(TARGET_ALPHA)
7998 abi_ulong mask = arg1;
3d3efba0 7999 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 8000#else
c227f099 8001 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8002 return -TARGET_EFAULT;
3d3efba0 8003 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 8004 unlock_user(p, arg1, 0);
f43ce12b 8005#endif
3d3efba0
PM		 8006 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8007 SIGSET_T_SIZE));
8008 if (ret != -TARGET_ERESTARTSYS) {
8009 ts->in_sigsuspend = 1;
8010 }
66fb9763 8011 }
72eb7ea8 8012 return ret;
e5febef5 8013#endif
66fb9763
FB		 8014 case TARGET_NR_rt_sigsuspend:
8015 {
3d3efba0 8016 TaskState *ts = cpu->opaque;
c815701e
PM		 8017
8018 if (arg2 != sizeof(target_sigset_t)) {
72eb7ea8 8019 return -TARGET_EINVAL;
c815701e 8020 }
c227f099 8021 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8022 return -TARGET_EFAULT;
3d3efba0 8023 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 8024 unlock_user(p, arg1, 0);
3d3efba0
PM		 8025 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8026 SIGSET_T_SIZE));
8027 if (ret != -TARGET_ERESTARTSYS) {
8028 ts->in_sigsuspend = 1;
8029 }
66fb9763 8030 }
72eb7ea8 8031 return ret;
66fb9763
FB		 8032 case TARGET_NR_rt_sigtimedwait:
8033 {
66fb9763
FB		 8034 sigset_t set;
8035 struct timespec uts, *puts;
8036 siginfo_t uinfo;
3b46e624 8037
c815701e 8038 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8039 return -TARGET_EINVAL;
c815701e
PM		 8040 }
8041
c227f099 8042 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8043 return -TARGET_EFAULT;
53a5960a
PB		 8044 target_to_host_sigset(&set, p);
8045 unlock_user(p, arg1, 0);
8046 if (arg3) {
66fb9763 8047 puts = &uts;
53a5960a 8048 target_to_host_timespec(puts, arg3);
66fb9763
FB		 8049 } else {
8050 puts = NULL;
8051 }
b3f82330
PM		 8052 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
8053 SIGSET_T_SIZE));
974a196d
PJ		 8054 if (!is_error(ret)) {
8055 if (arg2) {
8056 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
8057 0);
8058 if (!p) {
2852aafd 8059 return -TARGET_EFAULT;
974a196d
PJ		 8060 }
8061 host_to_target_siginfo(p, &uinfo);
8062 unlock_user(p, arg2, sizeof(target_siginfo_t));
8063 }
8064 ret = host_to_target_signal(ret);
66fb9763
FB		 8065 }
8066 }
72eb7ea8 8067 return ret;
66fb9763
FB		 8068 case TARGET_NR_rt_sigqueueinfo:
8069 {
8070 siginfo_t uinfo;
4debae6f
PM		 8071
8072 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
8073 if (!p) {
2852aafd 8074 return -TARGET_EFAULT;
4debae6f 8075 }
53a5960a 8076 target_to_host_siginfo(&uinfo, p);
d8b6d892 8077 unlock_user(p, arg3, 0);
66fb9763
FB		 8078 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
8079 }
72eb7ea8 8080 return ret;
cf8b8bfc
MS		 8081 case TARGET_NR_rt_tgsigqueueinfo:
8082 {
8083 siginfo_t uinfo;
8084
8085 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
8086 if (!p) {
2852aafd 8087 return -TARGET_EFAULT;
cf8b8bfc
MS		 8088 }
8089 target_to_host_siginfo(&uinfo, p);
8090 unlock_user(p, arg4, 0);
8091 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
8092 }
72eb7ea8 8093 return ret;
e5febef5 8094#ifdef TARGET_NR_sigreturn
66fb9763 8095 case TARGET_NR_sigreturn:
3d3efba0 8096 if (block_signals()) {
72eb7ea8 8097 return -TARGET_ERESTARTSYS;
3d3efba0 8098 }
72eb7ea8 8099 return do_sigreturn(cpu_env);
e5febef5 8100#endif
66fb9763 8101 case TARGET_NR_rt_sigreturn:
3d3efba0 8102 if (block_signals()) {
72eb7ea8 8103 return -TARGET_ERESTARTSYS;
3d3efba0 8104 }
72eb7ea8 8105 return do_rt_sigreturn(cpu_env);
31e31b8a 8106 case TARGET_NR_sethostname:
579a97f7 8107 if (!(p = lock_user_string(arg1)))
2852aafd 8108 return -TARGET_EFAULT;
53a5960a
PB		 8109 ret = get_errno(sethostname(p, arg2));
8110 unlock_user(p, arg1, 0);
72eb7ea8 8111 return ret;
4f7f8924 8112#ifdef TARGET_NR_setrlimit
31e31b8a 8113 case TARGET_NR_setrlimit:
9de5e440 8114 {
e22b7015 8115 int resource = target_to_host_resource(arg1);
53a5960a 8116 struct target_rlimit *target_rlim;
9de5e440 8117 struct rlimit rlim;
579a97f7 8118 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
2852aafd 8119 return -TARGET_EFAULT;
81bbe906
TY		 8120 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
8121 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 8122 unlock_user_struct(target_rlim, arg2, 0);
5dfa88f7
MF		 8123 /*
8124 * If we just passed through resource limit settings for memory then
8125 * they would also apply to QEMU's own allocations, and QEMU will
8126 * crash or hang or die if its allocations fail. Ideally we would
8127 * track the guest allocations in QEMU and apply the limits ourselves.
8128 * For now, just tell the guest the call succeeded but don't actually
8129 * limit anything.
8130 */
8131 if (resource != RLIMIT_AS &&
8132 resource != RLIMIT_DATA &&
8133 resource != RLIMIT_STACK) {
8134 return get_errno(setrlimit(resource, &rlim));
8135 } else {
8136 return 0;
8137 }
9de5e440 8138 }
4f7f8924
AR		 8139#endif
8140#ifdef TARGET_NR_getrlimit
31e31b8a 8141 case TARGET_NR_getrlimit:
9de5e440 8142 {
e22b7015 8143 int resource = target_to_host_resource(arg1);
53a5960a 8144 struct target_rlimit *target_rlim;
9de5e440 8145 struct rlimit rlim;
3b46e624 8146
9de5e440
FB		 8147 ret = get_errno(getrlimit(resource, &rlim));
8148 if (!is_error(ret)) {
579a97f7 8149 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 8150 return -TARGET_EFAULT;
81bbe906
TY		 8151 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
8152 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 8153 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 8154 }
8155 }
72eb7ea8 8156 return ret;
4f7f8924 8157#endif
31e31b8a 8158 case TARGET_NR_getrusage:
b409186b
FB		 8159 {
8160 struct rusage rusage;
b409186b
FB		 8161 ret = get_errno(getrusage(arg1, &rusage));
8162 if (!is_error(ret)) {
a39fb273 8163 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 8164 }
8165 }
72eb7ea8 8166 return ret;
31e31b8a
FB		 8167 case TARGET_NR_gettimeofday:
8168 {
31e31b8a
FB		 8169 struct timeval tv;
8170 ret = get_errno(gettimeofday(&tv, NULL));
8171 if (!is_error(ret)) {
788f5ec4 8172 if (copy_to_user_timeval(arg1, &tv))
2852aafd 8173 return -TARGET_EFAULT;
31e31b8a
FB		 8174 }
8175 }
72eb7ea8 8176 return ret;
31e31b8a
FB		 8177 case TARGET_NR_settimeofday:
8178 {
b67d8031 8179 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 8180 struct timezone tz, *ptz = NULL;
8181
b67d8031
PB		 8182 if (arg1) {
8183 if (copy_from_user_timeval(&tv, arg1)) {
2852aafd 8184 return -TARGET_EFAULT;
b67d8031
PB		 8185 }
8186 ptv = &tv;
8187 }
ef4467e9
PB		 8188
8189 if (arg2) {
8190 if (copy_from_user_timezone(&tz, arg2)) {
2852aafd 8191 return -TARGET_EFAULT;
ef4467e9
PB		 8192 }
8193 ptz = &tz;
8194 }
8195
72eb7ea8 8196 return get_errno(settimeofday(ptv, ptz));
31e31b8a 8197 }
9468a5d4 8198#if defined(TARGET_NR_select)
31e31b8a 8199 case TARGET_NR_select:
5457dc9e
LV		 8200#if defined(TARGET_WANT_NI_OLD_SELECT)
8201 /* some architectures used to have old_select here
8202 * but now ENOSYS it.
8203 */
8204 ret = -TARGET_ENOSYS;
8205#elif defined(TARGET_WANT_OLD_SYS_SELECT)
8206 ret = do_old_select(arg1);
9468a5d4 8207#else
5457dc9e 8208 ret = do_select(arg1, arg2, arg3, arg4, arg5);
9468a5d4 8209#endif
72eb7ea8 8210 return ret;
9e42382f
RV		 8211#endif
8212#ifdef TARGET_NR_pselect6
8213 case TARGET_NR_pselect6:
055e0906
MF		 8214 {
8215 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
8216 fd_set rfds, wfds, efds;
8217 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
8218 struct timespec ts, *ts_ptr;
8219
8220 /*
8221 * The 6th arg is actually two args smashed together,
8222 * so we cannot use the C library.
8223 */
8224 sigset_t set;
8225 struct {
8226 sigset_t *set;
8227 size_t size;
8228 } sig, *sig_ptr;
8229
8230 abi_ulong arg_sigset, arg_sigsize, *arg7;
8231 target_sigset_t *target_sigset;
8232
8233 n = arg1;
8234 rfd_addr = arg2;
8235 wfd_addr = arg3;
8236 efd_addr = arg4;
8237 ts_addr = arg5;
8238
8239 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
8240 if (ret) {
259841c1 8241 return ret;
055e0906
MF		 8242 }
8243 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
8244 if (ret) {
259841c1 8245 return ret;
055e0906
MF		 8246 }
8247 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
8248 if (ret) {
259841c1 8249 return ret;
055e0906
MF		 8250 }
8251
8252 /*
8253 * This takes a timespec, and not a timeval, so we cannot
8254 * use the do_select() helper ...
8255 */
8256 if (ts_addr) {
8257 if (target_to_host_timespec(&ts, ts_addr)) {
2852aafd 8258 return -TARGET_EFAULT;
055e0906
MF		 8259 }
8260 ts_ptr = &ts;
8261 } else {
8262 ts_ptr = NULL;
8263 }
8264
8265 /* Extract the two packed args for the sigset */
8266 if (arg6) {
8267 sig_ptr = &sig;
b28a1f33 8268 sig.size = SIGSET_T_SIZE;
055e0906
MF		 8269
8270 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
8271 if (!arg7) {
2852aafd 8272 return -TARGET_EFAULT;
055e0906 8273 }
cbb21eed
MB		 8274 arg_sigset = tswapal(arg7[0]);
8275 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 8276 unlock_user(arg7, arg6, 0);
8277
8278 if (arg_sigset) {
8279 sig.set = &set;
8f04eeb3
PM		 8280 if (arg_sigsize != sizeof(*target_sigset)) {
8281 /* Like the kernel, we enforce correct size sigsets */
259841c1 8282 return -TARGET_EINVAL;
8f04eeb3 8283 }
055e0906
MF		 8284 target_sigset = lock_user(VERIFY_READ, arg_sigset,
8285 sizeof(*target_sigset), 1);
8286 if (!target_sigset) {
2852aafd 8287 return -TARGET_EFAULT;
055e0906
MF		 8288 }
8289 target_to_host_sigset(&set, target_sigset);
8290 unlock_user(target_sigset, arg_sigset, 0);
8291 } else {
8292 sig.set = NULL;
8293 }
8294 } else {
8295 sig_ptr = NULL;
8296 }
8297
6df9d38d
PM		 8298 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
8299 ts_ptr, sig_ptr));
055e0906
MF		 8300
8301 if (!is_error(ret)) {
8302 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
2852aafd 8303 return -TARGET_EFAULT;
055e0906 8304 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
2852aafd 8305 return -TARGET_EFAULT;
055e0906 8306 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
2852aafd 8307 return -TARGET_EFAULT;
055e0906
MF		 8308
8309 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
2852aafd 8310 return -TARGET_EFAULT;
055e0906
MF		 8311 }
8312 }
72eb7ea8 8313 return ret;
048f6b4d 8314#endif
704eff6c 8315#ifdef TARGET_NR_symlink
31e31b8a 8316 case TARGET_NR_symlink:
53a5960a
PB		 8317 {
8318 void *p2;
8319 p = lock_user_string(arg1);
8320 p2 = lock_user_string(arg2);
579a97f7
FB		 8321 if (!p || !p2)
8322 ret = -TARGET_EFAULT;
8323 else
8324 ret = get_errno(symlink(p, p2));
53a5960a
PB		 8325 unlock_user(p2, arg2, 0);
8326 unlock_user(p, arg1, 0);
8327 }
72eb7ea8 8328 return ret;
704eff6c 8329#endif
c0d472b1 8330#if defined(TARGET_NR_symlinkat)
f0b6243d 8331 case TARGET_NR_symlinkat:
f0b6243d 8332 {
579a97f7 8333 void *p2;
f0b6243d
TS		 8334 p = lock_user_string(arg1);
8335 p2 = lock_user_string(arg3);
579a97f7 8336 if (!p || !p2)
0da46a6e 8337 ret = -TARGET_EFAULT;
f0b6243d 8338 else
c0d472b1 8339 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 8340 unlock_user(p2, arg3, 0);
8341 unlock_user(p, arg1, 0);
f0b6243d 8342 }
72eb7ea8 8343 return ret;
f0b6243d 8344#endif
704eff6c 8345#ifdef TARGET_NR_readlink
31e31b8a 8346 case TARGET_NR_readlink:
53a5960a 8347 {
463d8e73 8348 void *p2;
53a5960a 8349 p = lock_user_string(arg1);
579a97f7 8350 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 8351 if (!p || !p2) {
579a97f7 8352 ret = -TARGET_EFAULT;
f17f4989
MF		 8353 } else if (!arg3) {
8354 /* Short circuit this for the magic exe check. */
8355 ret = -TARGET_EINVAL;
463d8e73
AS		 8356 } else if (is_proc_myself((const char *)p, "exe")) {
8357 char real[PATH_MAX], *temp;
8358 temp = realpath(exec_path, real);
f17f4989
MF		 8359 /* Return value is # of bytes that we wrote to the buffer. */
8360 if (temp == NULL) {
8361 ret = get_errno(-1);
8362 } else {
8363 /* Don't worry about sign mismatch as earlier mapping
8364 * logic would have thrown a bad address error. */
8365 ret = MIN(strlen(real), arg3);
8366 /* We cannot NUL terminate the string. */
8367 memcpy(p2, real, ret);
8368 }
463d8e73
AS		 8369 } else {
8370 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 8371 }
53a5960a
PB		 8372 unlock_user(p2, arg2, ret);
8373 unlock_user(p, arg1, 0);
8374 }
72eb7ea8 8375 return ret;
704eff6c 8376#endif
c0d472b1 8377#if defined(TARGET_NR_readlinkat)
5e0ccb18 8378 case TARGET_NR_readlinkat:
5e0ccb18 8379 {
579a97f7 8380 void *p2;
5e0ccb18 8381 p = lock_user_string(arg2);
579a97f7 8382 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 8383 if (!p || !p2) {
8384 ret = -TARGET_EFAULT;
8385 } else if (is_proc_myself((const char *)p, "exe")) {
8386 char real[PATH_MAX], *temp;
8387 temp = realpath(exec_path, real);
8388 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8389 snprintf((char *)p2, arg4, "%s", real);
8390 } else {
c0d472b1 8391 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 8392 }
579a97f7
FB		 8393 unlock_user(p2, arg3, ret);
8394 unlock_user(p, arg2, 0);
5e0ccb18 8395 }
72eb7ea8 8396 return ret;
5e0ccb18 8397#endif
e5febef5 8398#ifdef TARGET_NR_swapon
31e31b8a 8399 case TARGET_NR_swapon:
579a97f7 8400 if (!(p = lock_user_string(arg1)))
2852aafd 8401 return -TARGET_EFAULT;
53a5960a
PB		 8402 ret = get_errno(swapon(p, arg2));
8403 unlock_user(p, arg1, 0);
72eb7ea8 8404 return ret;
e5febef5 8405#endif
31e31b8a 8406 case TARGET_NR_reboot:
c07ecc68
LV		 8407 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8408 /* arg4 must be ignored in all other cases */
8409 p = lock_user_string(arg4);
8410 if (!p) {
2852aafd 8411 return -TARGET_EFAULT;
c07ecc68
LV		 8412 }
8413 ret = get_errno(reboot(arg1, arg2, arg3, p));
8414 unlock_user(p, arg4, 0);
8415 } else {
8416 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8417 }
72eb7ea8 8418 return ret;
e5febef5 8419#ifdef TARGET_NR_mmap
31e31b8a 8420 case TARGET_NR_mmap:
09701199
AG		 8421#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8422 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 8423 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8424 || defined(TARGET_S390X)
31e31b8a 8425 {
992f48a0
BS		 8426 abi_ulong *v;
8427 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7 8428 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
2852aafd 8429 return -TARGET_EFAULT;
cbb21eed
MB		 8430 v1 = tswapal(v[0]);
8431 v2 = tswapal(v[1]);
8432 v3 = tswapal(v[2]);
8433 v4 = tswapal(v[3]);
8434 v5 = tswapal(v[4]);
8435 v6 = tswapal(v[5]);
53a5960a 8436 unlock_user(v, arg1, 0);
5fafdf24 8437 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 8438 target_to_host_bitmask(v4, mmap_flags_tbl),
8439 v5, v6));
31e31b8a 8440 }
31e31b8a 8441#else
5fafdf24
TS		 8442 ret = get_errno(target_mmap(arg1, arg2, arg3,
8443 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 8444 arg5,
8445 arg6));
31e31b8a 8446#endif
72eb7ea8 8447 return ret;
e5febef5 8448#endif
a315a145 8449#ifdef TARGET_NR_mmap2
6fb883e8 8450 case TARGET_NR_mmap2:
bb7ec043 8451#ifndef MMAP_SHIFT
c573ff67 8452#define MMAP_SHIFT 12
c573ff67 8453#endif
72eb7ea8
RH		 8454 ret = target_mmap(arg1, arg2, arg3,
8455 target_to_host_bitmask(arg4, mmap_flags_tbl),
8456 arg5, arg6 << MMAP_SHIFT);
8457 return get_errno(ret);
a315a145 8458#endif
31e31b8a 8459 case TARGET_NR_munmap:
72eb7ea8 8460 return get_errno(target_munmap(arg1, arg2));
9de5e440 8461 case TARGET_NR_mprotect:
97374d38 8462 {
0429a971 8463 TaskState *ts = cpu->opaque;
97374d38
PB		 8464 /* Special hack to detect libc making the stack executable. */
8465 if ((arg3 & PROT_GROWSDOWN)
8466 && arg1 >= ts->info->stack_limit
8467 && arg1 <= ts->info->start_stack) {
8468 arg3 &= ~PROT_GROWSDOWN;
8469 arg2 = arg2 + arg1 - ts->info->stack_limit;
8470 arg1 = ts->info->stack_limit;
8471 }
8472 }
72eb7ea8 8473 return get_errno(target_mprotect(arg1, arg2, arg3));
e5febef5 8474#ifdef TARGET_NR_mremap
9de5e440 8475 case TARGET_NR_mremap:
72eb7ea8 8476 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
e5febef5 8477#endif
53a5960a 8478 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 8479#ifdef TARGET_NR_msync
9de5e440 8480 case TARGET_NR_msync:
72eb7ea8 8481 return get_errno(msync(g2h(arg1), arg2, arg3));
e5febef5
TS		 8482#endif
8483#ifdef TARGET_NR_mlock
9de5e440 8484 case TARGET_NR_mlock:
72eb7ea8 8485 return get_errno(mlock(g2h(arg1), arg2));
e5febef5
TS		 8486#endif
8487#ifdef TARGET_NR_munlock
9de5e440 8488 case TARGET_NR_munlock:
72eb7ea8 8489 return get_errno(munlock(g2h(arg1), arg2));
e5febef5
TS		 8490#endif
8491#ifdef TARGET_NR_mlockall
9de5e440 8492 case TARGET_NR_mlockall:
72eb7ea8 8493 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
e5febef5
TS		 8494#endif
8495#ifdef TARGET_NR_munlockall
9de5e440 8496 case TARGET_NR_munlockall:
72eb7ea8 8497 return get_errno(munlockall());
e5febef5 8498#endif
4f7f8924 8499#ifdef TARGET_NR_truncate
31e31b8a 8500 case TARGET_NR_truncate:
579a97f7 8501 if (!(p = lock_user_string(arg1)))
2852aafd 8502 return -TARGET_EFAULT;
53a5960a
PB		 8503 ret = get_errno(truncate(p, arg2));
8504 unlock_user(p, arg1, 0);
72eb7ea8 8505 return ret;
4f7f8924
AR		 8506#endif
8507#ifdef TARGET_NR_ftruncate
31e31b8a 8508 case TARGET_NR_ftruncate:
72eb7ea8 8509 return get_errno(ftruncate(arg1, arg2));
4f7f8924 8510#endif
31e31b8a 8511 case TARGET_NR_fchmod:
72eb7ea8 8512 return get_errno(fchmod(arg1, arg2));
c0d472b1 8513#if defined(TARGET_NR_fchmodat)
814d7977 8514 case TARGET_NR_fchmodat:
579a97f7 8515 if (!(p = lock_user_string(arg2)))
2852aafd 8516 return -TARGET_EFAULT;
c0d472b1 8517 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 8518 unlock_user(p, arg2, 0);
72eb7ea8 8519 return ret;
814d7977 8520#endif
31e31b8a 8521 case TARGET_NR_getpriority:
95c09828
RH		 8522 /* Note that negative values are valid for getpriority, so we must
8523 differentiate based on errno settings. */
8524 errno = 0;
8525 ret = getpriority(arg1, arg2);
8526 if (ret == -1 && errno != 0) {
72eb7ea8 8527 return -host_to_target_errno(errno);
95c09828
RH		 8528 }
8529#ifdef TARGET_ALPHA
8530 /* Return value is the unbiased priority. Signal no error. */
8531 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8532#else
8533 /* Return value is a biased priority to avoid negative numbers. */
8534 ret = 20 - ret;
8535#endif
72eb7ea8 8536 return ret;
31e31b8a 8537 case TARGET_NR_setpriority:
72eb7ea8 8538 return get_errno(setpriority(arg1, arg2, arg3));
4f7f8924 8539#ifdef TARGET_NR_statfs
31e31b8a 8540 case TARGET_NR_statfs:
2852aafd
RH		 8541 if (!(p = lock_user_string(arg1))) {
8542 return -TARGET_EFAULT;
8543 }
53a5960a
PB		 8544 ret = get_errno(statfs(path(p), &stfs));
8545 unlock_user(p, arg1, 0);
31e31b8a
FB		 8546 convert_statfs:
8547 if (!is_error(ret)) {
53a5960a 8548 struct target_statfs *target_stfs;
3b46e624 8549
579a97f7 8550 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
2852aafd 8551 return -TARGET_EFAULT;
579a97f7
FB		 8552 __put_user(stfs.f_type, &target_stfs->f_type);
8553 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8554 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8555 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8556 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8557 __put_user(stfs.f_files, &target_stfs->f_files);
8558 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8559 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8560 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8561 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 8562 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
d4247ec2
SL		 8563#ifdef _STATFS_F_FLAGS
8564 __put_user(stfs.f_flags, &target_stfs->f_flags);
8565#else
8566 __put_user(0, &target_stfs->f_flags);
8567#endif
229d3376 8568 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 8569 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a 8570 }
72eb7ea8 8571 return ret;
4f7f8924
AR		 8572#endif
8573#ifdef TARGET_NR_fstatfs
31e31b8a 8574 case TARGET_NR_fstatfs:
56c8f68f 8575 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 8576 goto convert_statfs;
4f7f8924 8577#endif
56c8f68f
FB		 8578#ifdef TARGET_NR_statfs64
8579 case TARGET_NR_statfs64:
2852aafd
RH		 8580 if (!(p = lock_user_string(arg1))) {
8581 return -TARGET_EFAULT;
8582 }
53a5960a
PB		 8583 ret = get_errno(statfs(path(p), &stfs));
8584 unlock_user(p, arg1, 0);
56c8f68f
FB		 8585 convert_statfs64:
8586 if (!is_error(ret)) {
53a5960a 8587 struct target_statfs64 *target_stfs;
3b46e624 8588
579a97f7 8589 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
2852aafd 8590 return -TARGET_EFAULT;
579a97f7
FB		 8591 __put_user(stfs.f_type, &target_stfs->f_type);
8592 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8593 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8594 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8595 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8596 __put_user(stfs.f_files, &target_stfs->f_files);
8597 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8598 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8599 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8600 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8601 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8602 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 8603 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f 8604 }
72eb7ea8 8605 return ret;
56c8f68f
FB		 8606 case TARGET_NR_fstatfs64:
8607 ret = get_errno(fstatfs(arg1, &stfs));
8608 goto convert_statfs64;
8609#endif
e5febef5 8610#ifdef TARGET_NR_socketcall
31e31b8a 8611 case TARGET_NR_socketcall:
72eb7ea8 8612 return do_socketcall(arg1, arg2);
e5febef5 8613#endif
3532fa74
FB		 8614#ifdef TARGET_NR_accept
8615 case TARGET_NR_accept:
72eb7ea8 8616 return do_accept4(arg1, arg2, arg3, 0);
a94b4987
PM		 8617#endif
8618#ifdef TARGET_NR_accept4
8619 case TARGET_NR_accept4:
72eb7ea8 8620 return do_accept4(arg1, arg2, arg3, arg4);
3532fa74
FB		 8621#endif
8622#ifdef TARGET_NR_bind
8623 case TARGET_NR_bind:
72eb7ea8 8624 return do_bind(arg1, arg2, arg3);
3532fa74
FB		 8625#endif
8626#ifdef TARGET_NR_connect
8627 case TARGET_NR_connect:
72eb7ea8 8628 return do_connect(arg1, arg2, arg3);
3532fa74
FB		 8629#endif
8630#ifdef TARGET_NR_getpeername
8631 case TARGET_NR_getpeername:
72eb7ea8 8632 return do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 8633#endif
8634#ifdef TARGET_NR_getsockname
8635 case TARGET_NR_getsockname:
72eb7ea8 8636 return do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 8637#endif
8638#ifdef TARGET_NR_getsockopt
8639 case TARGET_NR_getsockopt:
72eb7ea8 8640 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3532fa74
FB		 8641#endif
8642#ifdef TARGET_NR_listen
8643 case TARGET_NR_listen:
72eb7ea8 8644 return get_errno(listen(arg1, arg2));
3532fa74
FB		 8645#endif
8646#ifdef TARGET_NR_recv
8647 case TARGET_NR_recv:
72eb7ea8 8648 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8649#endif
8650#ifdef TARGET_NR_recvfrom
8651 case TARGET_NR_recvfrom:
72eb7ea8 8652 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8653#endif
8654#ifdef TARGET_NR_recvmsg
8655 case TARGET_NR_recvmsg:
72eb7ea8 8656 return do_sendrecvmsg(arg1, arg2, arg3, 0);
3532fa74
FB		 8657#endif
8658#ifdef TARGET_NR_send
8659 case TARGET_NR_send:
72eb7ea8 8660 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8661#endif
8662#ifdef TARGET_NR_sendmsg
8663 case TARGET_NR_sendmsg:
72eb7ea8 8664 return do_sendrecvmsg(arg1, arg2, arg3, 1);
3532fa74 8665#endif
f19e00d7
AG		 8666#ifdef TARGET_NR_sendmmsg
8667 case TARGET_NR_sendmmsg:
72eb7ea8 8668 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
f19e00d7 8669 case TARGET_NR_recvmmsg:
72eb7ea8 8670 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
f19e00d7 8671#endif
3532fa74
FB		 8672#ifdef TARGET_NR_sendto
8673 case TARGET_NR_sendto:
72eb7ea8 8674 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8675#endif
8676#ifdef TARGET_NR_shutdown
8677 case TARGET_NR_shutdown:
72eb7ea8 8678 return get_errno(shutdown(arg1, arg2));
3532fa74 8679#endif
f894efd1
LV		 8680#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8681 case TARGET_NR_getrandom:
8682 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8683 if (!p) {
2852aafd 8684 return -TARGET_EFAULT;
f894efd1
LV		 8685 }
8686 ret = get_errno(getrandom(p, arg2, arg3));
8687 unlock_user(p, arg1, ret);
72eb7ea8 8688 return ret;
f894efd1 8689#endif
3532fa74
FB		 8690#ifdef TARGET_NR_socket
8691 case TARGET_NR_socket:
72eb7ea8 8692 return do_socket(arg1, arg2, arg3);
3532fa74
FB		 8693#endif
8694#ifdef TARGET_NR_socketpair
8695 case TARGET_NR_socketpair:
72eb7ea8 8696 return do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 8697#endif
8698#ifdef TARGET_NR_setsockopt
8699 case TARGET_NR_setsockopt:
72eb7ea8 8700 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3532fa74 8701#endif
da2c8ad7 8702#if defined(TARGET_NR_syslog)
31e31b8a 8703 case TARGET_NR_syslog:
da2c8ad7
AM		 8704 {
8705 int len = arg2;
7494b0f9 8706
da2c8ad7
AM		 8707 switch (arg1) {
8708 case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
8709 case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
8710 case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
8711 case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
8712 case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
8713 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
8714 case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
8715 case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
72eb7ea8 8716 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
da2c8ad7
AM		 8717 case TARGET_SYSLOG_ACTION_READ: /* Read from log */
8718 case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
8719 case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
8720 {
da2c8ad7 8721 if (len < 0) {
259841c1 8722 return -TARGET_EINVAL;
da2c8ad7 8723 }
da2c8ad7 8724 if (len == 0) {
72eb7ea8 8725 return 0;
da2c8ad7
AM		 8726 }
8727 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8728 if (!p) {
259841c1 8729 return -TARGET_EFAULT;
da2c8ad7
AM		 8730 }
8731 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
8732 unlock_user(p, arg2, arg3);
8733 }
72eb7ea8 8734 return ret;
da2c8ad7 8735 default:
72eb7ea8 8736 return -TARGET_EINVAL;
da2c8ad7
AM		 8737 }
8738 }
8739 break;
8740#endif
31e31b8a 8741 case TARGET_NR_setitimer:
66fb9763 8742 {
66fb9763
FB		 8743 struct itimerval value, ovalue, *pvalue;
8744
53a5960a 8745 if (arg2) {
66fb9763 8746 pvalue = &value;
788f5ec4
TS		 8747 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
8748 || copy_from_user_timeval(&pvalue->it_value,
8749 arg2 + sizeof(struct target_timeval)))
2852aafd 8750 return -TARGET_EFAULT;
66fb9763
FB		 8751 } else {
8752 pvalue = NULL;
8753 }
8754 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 8755 if (!is_error(ret) && arg3) {
788f5ec4
TS		 8756 if (copy_to_user_timeval(arg3,
8757 &ovalue.it_interval)
8758 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
8759 &ovalue.it_value))
2852aafd 8760 return -TARGET_EFAULT;
66fb9763
FB		 8761 }
8762 }
72eb7ea8 8763 return ret;
31e31b8a 8764 case TARGET_NR_getitimer:
66fb9763 8765 {
66fb9763 8766 struct itimerval value;
3b46e624 8767
66fb9763 8768 ret = get_errno(getitimer(arg1, &value));
53a5960a 8769 if (!is_error(ret) && arg2) {
788f5ec4
TS		 8770 if (copy_to_user_timeval(arg2,
8771 &value.it_interval)
8772 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
8773 &value.it_value))
2852aafd 8774 return -TARGET_EFAULT;
66fb9763
FB		 8775 }
8776 }
72eb7ea8 8777 return ret;
704eff6c 8778#ifdef TARGET_NR_stat
31e31b8a 8779 case TARGET_NR_stat:
2852aafd
RH		 8780 if (!(p = lock_user_string(arg1))) {
8781 return -TARGET_EFAULT;
8782 }
53a5960a
PB		 8783 ret = get_errno(stat(path(p), &st));
8784 unlock_user(p, arg1, 0);
31e31b8a 8785 goto do_stat;
704eff6c
CG		 8786#endif
8787#ifdef TARGET_NR_lstat
31e31b8a 8788 case TARGET_NR_lstat:
2852aafd
RH		 8789 if (!(p = lock_user_string(arg1))) {
8790 return -TARGET_EFAULT;
8791 }
53a5960a
PB		 8792 ret = get_errno(lstat(path(p), &st));
8793 unlock_user(p, arg1, 0);
31e31b8a 8794 goto do_stat;
704eff6c 8795#endif
4f7f8924 8796#ifdef TARGET_NR_fstat
31e31b8a
FB		 8797 case TARGET_NR_fstat:
8798 {
8799 ret = get_errno(fstat(arg1, &st));
704eff6c 8800#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 8801 do_stat:
704eff6c 8802#endif
31e31b8a 8803 if (!is_error(ret)) {
53a5960a 8804 struct target_stat *target_st;
e3584658 8805
579a97f7 8806 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
2852aafd 8807 return -TARGET_EFAULT;
12727917 8808 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 8809 __put_user(st.st_dev, &target_st->st_dev);
8810 __put_user(st.st_ino, &target_st->st_ino);
8811 __put_user(st.st_mode, &target_st->st_mode);
8812 __put_user(st.st_uid, &target_st->st_uid);
8813 __put_user(st.st_gid, &target_st->st_gid);
8814 __put_user(st.st_nlink, &target_st->st_nlink);
8815 __put_user(st.st_rdev, &target_st->st_rdev);
8816 __put_user(st.st_size, &target_st->st_size);
8817 __put_user(st.st_blksize, &target_st->st_blksize);
8818 __put_user(st.st_blocks, &target_st->st_blocks);
8819 __put_user(st.st_atime, &target_st->target_st_atime);
8820 __put_user(st.st_mtime, &target_st->target_st_mtime);
8821 __put_user(st.st_ctime, &target_st->target_st_ctime);
53a5960a 8822 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 8823 }
8824 }
72eb7ea8 8825 return ret;
ebc05488 8826#endif
31e31b8a 8827 case TARGET_NR_vhangup:
72eb7ea8 8828 return get_errno(vhangup());
42ad6ae9
FB		 8829#ifdef TARGET_NR_syscall
8830 case TARGET_NR_syscall:
72eb7ea8
RH		 8831 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
8832 arg6, arg7, arg8, 0);
ebc05488 8833#endif
31e31b8a
FB		 8834 case TARGET_NR_wait4:
8835 {
8836 int status;
992f48a0 8837 abi_long status_ptr = arg2;
31e31b8a 8838 struct rusage rusage, *rusage_ptr;
992f48a0 8839 abi_ulong target_rusage = arg4;
a39fb273 8840 abi_long rusage_err;
31e31b8a
FB		 8841 if (target_rusage)
8842 rusage_ptr = &rusage;
8843 else
8844 rusage_ptr = NULL;
4af80a37 8845 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 8846 if (!is_error(ret)) {
5379557b 8847 if (status_ptr && ret) {
1d9d8b55 8848 status = host_to_target_waitstatus(status);
2f619698 8849 if (put_user_s32(status, status_ptr))
2852aafd 8850 return -TARGET_EFAULT;
31e31b8a 8851 }
a39fb273
PJ		 8852 if (target_rusage) {
8853 rusage_err = host_to_target_rusage(target_rusage, &rusage);
8854 if (rusage_err) {
8855 ret = rusage_err;
8856 }
8857 }
31e31b8a
FB		 8858 }
8859 }
72eb7ea8 8860 return ret;
e5febef5 8861#ifdef TARGET_NR_swapoff
31e31b8a 8862 case TARGET_NR_swapoff:
579a97f7 8863 if (!(p = lock_user_string(arg1)))
2852aafd 8864 return -TARGET_EFAULT;
53a5960a
PB		 8865 ret = get_errno(swapoff(p));
8866 unlock_user(p, arg1, 0);
72eb7ea8 8867 return ret;
e5febef5 8868#endif
31e31b8a 8869 case TARGET_NR_sysinfo:
a5448a7d 8870 {
53a5960a 8871 struct target_sysinfo *target_value;
a5448a7d
FB		 8872 struct sysinfo value;
8873 ret = get_errno(sysinfo(&value));
53a5960a 8874 if (!is_error(ret) && arg1)
a5448a7d 8875 {
579a97f7 8876 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
2852aafd 8877 return -TARGET_EFAULT;
a5448a7d
FB		 8878 __put_user(value.uptime, &target_value->uptime);
8879 __put_user(value.loads[0], &target_value->loads[0]);
8880 __put_user(value.loads[1], &target_value->loads[1]);
8881 __put_user(value.loads[2], &target_value->loads[2]);
8882 __put_user(value.totalram, &target_value->totalram);
8883 __put_user(value.freeram, &target_value->freeram);
8884 __put_user(value.sharedram, &target_value->sharedram);
8885 __put_user(value.bufferram, &target_value->bufferram);
8886 __put_user(value.totalswap, &target_value->totalswap);
8887 __put_user(value.freeswap, &target_value->freeswap);
8888 __put_user(value.procs, &target_value->procs);
8889 __put_user(value.totalhigh, &target_value->totalhigh);
8890 __put_user(value.freehigh, &target_value->freehigh);
8891 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 8892 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 8893 }
8894 }
72eb7ea8 8895 return ret;
e5febef5 8896#ifdef TARGET_NR_ipc
31e31b8a 8897 case TARGET_NR_ipc:
72eb7ea8 8898 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
e5febef5 8899#endif
e5289087
AJ		 8900#ifdef TARGET_NR_semget
8901 case TARGET_NR_semget:
72eb7ea8 8902 return get_errno(semget(arg1, arg2, arg3));
e5289087
AJ		 8903#endif
8904#ifdef TARGET_NR_semop
8905 case TARGET_NR_semop:
72eb7ea8 8906 return do_semop(arg1, arg2, arg3);
e5289087
AJ		 8907#endif
8908#ifdef TARGET_NR_semctl
8909 case TARGET_NR_semctl:
72eb7ea8 8910 return do_semctl(arg1, arg2, arg3, arg4);
e5289087 8911#endif
eeb438c1
AJ		 8912#ifdef TARGET_NR_msgctl
8913 case TARGET_NR_msgctl:
72eb7ea8 8914 return do_msgctl(arg1, arg2, arg3);
eeb438c1
AJ		 8915#endif
8916#ifdef TARGET_NR_msgget
8917 case TARGET_NR_msgget:
72eb7ea8 8918 return get_errno(msgget(arg1, arg2));
eeb438c1
AJ		 8919#endif
8920#ifdef TARGET_NR_msgrcv
8921 case TARGET_NR_msgrcv:
72eb7ea8 8922 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
eeb438c1
AJ		 8923#endif
8924#ifdef TARGET_NR_msgsnd
8925 case TARGET_NR_msgsnd:
72eb7ea8 8926 return do_msgsnd(arg1, arg2, arg3, arg4);
88a8c984
RV		 8927#endif
8928#ifdef TARGET_NR_shmget
8929 case TARGET_NR_shmget:
72eb7ea8 8930 return get_errno(shmget(arg1, arg2, arg3));
88a8c984
RV		 8931#endif
8932#ifdef TARGET_NR_shmctl
8933 case TARGET_NR_shmctl:
72eb7ea8 8934 return do_shmctl(arg1, arg2, arg3);
88a8c984
RV		 8935#endif
8936#ifdef TARGET_NR_shmat
8937 case TARGET_NR_shmat:
72eb7ea8 8938 return do_shmat(cpu_env, arg1, arg2, arg3);
88a8c984
RV		 8939#endif
8940#ifdef TARGET_NR_shmdt
8941 case TARGET_NR_shmdt:
72eb7ea8 8942 return do_shmdt(arg1);
eeb438c1 8943#endif
31e31b8a 8944 case TARGET_NR_fsync:
72eb7ea8 8945 return get_errno(fsync(arg1));
31e31b8a 8946 case TARGET_NR_clone:
4ce6243d
PM		 8947 /* Linux manages to have three different orderings for its
8948 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
8949 * match the kernel's CONFIG_CLONE_* settings.
8950 * Microblaze is further special in that it uses a sixth
8951 * implicit argument to clone for the TLS pointer.
8952 */
8953#if defined(TARGET_MICROBLAZE)
a5b3bdcb 8954 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 8955#elif defined(TARGET_CLONE_BACKWARDS)
8956 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
8957#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 8958 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 8959#else
4ce6243d 8960 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 8961#endif
72eb7ea8 8962 return ret;
ec86b0fb
FB		 8963#ifdef __NR_exit_group
8964 /* new thread calls */
8965 case TARGET_NR_exit_group:
708b6a64 8966 preexit_cleanup(cpu_env, arg1);
72eb7ea8 8967 return get_errno(exit_group(arg1));
ec86b0fb 8968#endif
31e31b8a 8969 case TARGET_NR_setdomainname:
579a97f7 8970 if (!(p = lock_user_string(arg1)))
2852aafd 8971 return -TARGET_EFAULT;
53a5960a
PB		 8972 ret = get_errno(setdomainname(p, arg2));
8973 unlock_user(p, arg1, 0);
72eb7ea8 8974 return ret;
31e31b8a
FB		 8975 case TARGET_NR_uname:
8976 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 8977 {
8978 struct new_utsname * buf;
3b46e624 8979
579a97f7 8980 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
2852aafd 8981 return -TARGET_EFAULT;
29e619b1
FB		 8982 ret = get_errno(sys_uname(buf));
8983 if (!is_error(ret)) {
332c9781 8984 /* Overwrite the native machine name with whatever is being
29e619b1 8985 emulated. */
871f95c6
PMD		 8986 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
8987 sizeof(buf->machine));
c5937220 8988 /* Allow the user to override the reported release. */
332c9781
PM		 8989 if (qemu_uname_release && *qemu_uname_release) {
8990 g_strlcpy(buf->release, qemu_uname_release,
8991 sizeof(buf->release));
8992 }
29e619b1 8993 }
53a5960a 8994 unlock_user_struct(buf, arg1, 1);
29e619b1 8995 }
72eb7ea8 8996 return ret;
6dbad63e 8997#ifdef TARGET_I386
31e31b8a 8998 case TARGET_NR_modify_ldt:
72eb7ea8 8999 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
84409ddb 9000#if !defined(TARGET_X86_64)
5cd4393b 9001 case TARGET_NR_vm86:
72eb7ea8 9002 return do_vm86(cpu_env, arg1, arg2);
84409ddb 9003#endif
6dbad63e 9004#endif
31e31b8a 9005 case TARGET_NR_adjtimex:
19f59bce
AM		 9006 {
9007 struct timex host_buf;
9008
9009 if (target_to_host_timex(&host_buf, arg1) != 0) {
2852aafd 9010 return -TARGET_EFAULT;
19f59bce
AM		 9011 }
9012 ret = get_errno(adjtimex(&host_buf));
9013 if (!is_error(ret)) {
9014 if (host_to_target_timex(arg1, &host_buf) != 0) {
2852aafd 9015 return -TARGET_EFAULT;
19f59bce
AM		 9016 }
9017 }
9018 }
72eb7ea8 9019 return ret;
38860a03
AM		 9020#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
9021 case TARGET_NR_clock_adjtime:
9022 {
9023 struct timex htx, *phtx = &htx;
9024
9025 if (target_to_host_timex(phtx, arg2) != 0) {
2852aafd 9026 return -TARGET_EFAULT;
38860a03
AM		 9027 }
9028 ret = get_errno(clock_adjtime(arg1, phtx));
9029 if (!is_error(ret) && phtx) {
9030 if (host_to_target_timex(arg2, phtx) != 0) {
2852aafd 9031 return -TARGET_EFAULT;
38860a03
AM		 9032 }
9033 }
9034 }
72eb7ea8 9035 return ret;
38860a03 9036#endif
31e31b8a 9037 case TARGET_NR_getpgid:
72eb7ea8 9038 return get_errno(getpgid(arg1));
31e31b8a 9039 case TARGET_NR_fchdir:
72eb7ea8 9040 return get_errno(fchdir(arg1));
31e31b8a 9041 case TARGET_NR_personality:
72eb7ea8 9042 return get_errno(personality(arg1));
7a3148a9 9043#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 9044 case TARGET_NR__llseek:
9045 {
0c1592d9 9046 int64_t res;
d35b261c 9047#if !defined(__NR_llseek)
9fea273c 9048 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
0c1592d9
PM		 9049 if (res == -1) {
9050 ret = get_errno(res);
9051 } else {
9052 ret = 0;
9053 }
4f2ac237 9054#else
31e31b8a 9055 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 9056#endif
0c1592d9 9057 if ((ret == 0) && put_user_s64(res, arg4)) {
2852aafd 9058 return -TARGET_EFAULT;
0c1592d9 9059 }
31e31b8a 9060 }
72eb7ea8 9061 return ret;
7a3148a9 9062#endif
704eff6c 9063#ifdef TARGET_NR_getdents
31e31b8a 9064 case TARGET_NR_getdents:
2b3f64cb 9065#ifdef EMULATE_GETDENTS_WITH_GETDENTS
d83c8733 9066#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 9067 {
53a5960a 9068 struct target_dirent *target_dirp;
6556a833 9069 struct linux_dirent *dirp;
992f48a0 9070 abi_long count = arg3;
4add45b4 9071
0e173b24
HK		 9072 dirp = g_try_malloc(count);
9073 if (!dirp) {
259841c1 9074 return -TARGET_ENOMEM;
0da46a6e 9075 }
3b46e624 9076
4add45b4
FB		 9077 ret = get_errno(sys_getdents(arg1, dirp, count));
9078 if (!is_error(ret)) {
6556a833 9079 struct linux_dirent *de;
4add45b4
FB		 9080 struct target_dirent *tde;
9081 int len = ret;
9082 int reclen, treclen;
9083 int count1, tnamelen;
9084
9085 count1 = 0;
9086 de = dirp;
579a97f7 9087 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9088 return -TARGET_EFAULT;
4add45b4
FB		 9089 tde = target_dirp;
9090 while (len > 0) {
9091 reclen = de->d_reclen;
333858b7
DL		 9092 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
9093 assert(tnamelen >= 0);
9094 treclen = tnamelen + offsetof(struct target_dirent, d_name);
9095 assert(count1 + treclen <= count);
4add45b4 9096 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 9097 tde->d_ino = tswapal(de->d_ino);
9098 tde->d_off = tswapal(de->d_off);
333858b7 9099 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 9100 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 9101 len -= reclen;
1c5bf3bf 9102 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 9103 count1 += treclen;
9104 }
9105 ret = count1;
579a97f7 9106 unlock_user(target_dirp, arg2, ret);
4add45b4 9107 }
0e173b24 9108 g_free(dirp);
4add45b4
FB		 9109 }
9110#else
31e31b8a 9111 {
6556a833 9112 struct linux_dirent *dirp;
992f48a0 9113 abi_long count = arg3;
dab2ed99 9114
579a97f7 9115 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9116 return -TARGET_EFAULT;
72f03900 9117 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 9118 if (!is_error(ret)) {
6556a833 9119 struct linux_dirent *de;
31e31b8a
FB		 9120 int len = ret;
9121 int reclen;
9122 de = dirp;
9123 while (len > 0) {
8083a3e5 9124 reclen = de->d_reclen;
31e31b8a
FB		 9125 if (reclen > len)
9126 break;
8083a3e5 9127 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 9128 tswapls(&de->d_ino);
9129 tswapls(&de->d_off);
6556a833 9130 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 9131 len -= reclen;
9132 }
9133 }
53a5960a 9134 unlock_user(dirp, arg2, ret);
3307e236
PM		 9135 }
9136#endif
9137#else
9138 /* Implement getdents in terms of getdents64 */
9139 {
9140 struct linux_dirent64 *dirp;
9141 abi_long count = arg3;
9142
9143 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
9144 if (!dirp) {
2852aafd 9145 return -TARGET_EFAULT;
3307e236
PM		 9146 }
9147 ret = get_errno(sys_getdents64(arg1, dirp, count));
9148 if (!is_error(ret)) {
9149 /* Convert the dirent64 structs to target dirent. We do this
9150 * in-place, since we can guarantee that a target_dirent is no
9151 * larger than a dirent64; however this means we have to be
9152 * careful to read everything before writing in the new format.
9153 */
9154 struct linux_dirent64 *de;
9155 struct target_dirent *tde;
9156 int len = ret;
9157 int tlen = 0;
9158
9159 de = dirp;
9160 tde = (struct target_dirent *)dirp;
9161 while (len > 0) {
9162 int namelen, treclen;
9163 int reclen = de->d_reclen;
9164 uint64_t ino = de->d_ino;
9165 int64_t off = de->d_off;
9166 uint8_t type = de->d_type;
9167
9168 namelen = strlen(de->d_name);
9169 treclen = offsetof(struct target_dirent, d_name)
9170 + namelen + 2;
9171 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
9172
9173 memmove(tde->d_name, de->d_name, namelen + 1);
9174 tde->d_ino = tswapal(ino);
9175 tde->d_off = tswapal(off);
9176 tde->d_reclen = tswap16(treclen);
9177 /* The target_dirent type is in what was formerly a padding
9178 * byte at the end of the structure:
9179 */
9180 *(((char *)tde) + treclen - 1) = type;
9181
9182 de = (struct linux_dirent64 *)((char *)de + reclen);
9183 tde = (struct target_dirent *)((char *)tde + treclen);
9184 len -= reclen;
9185 tlen += treclen;
9186 }
9187 ret = tlen;
9188 }
9189 unlock_user(dirp, arg2, ret);
31e31b8a 9190 }
4add45b4 9191#endif
72eb7ea8 9192 return ret;
704eff6c 9193#endif /* TARGET_NR_getdents */
3ae43202 9194#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 9195 case TARGET_NR_getdents64:
9196 {
6556a833 9197 struct linux_dirent64 *dirp;
992f48a0 9198 abi_long count = arg3;
579a97f7 9199 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9200 return -TARGET_EFAULT;
dab2ed99
FB		 9201 ret = get_errno(sys_getdents64(arg1, dirp, count));
9202 if (!is_error(ret)) {
6556a833 9203 struct linux_dirent64 *de;
dab2ed99
FB		 9204 int len = ret;
9205 int reclen;
9206 de = dirp;
9207 while (len > 0) {
8083a3e5 9208 reclen = de->d_reclen;
dab2ed99
FB		 9209 if (reclen > len)
9210 break;
8083a3e5 9211 de->d_reclen = tswap16(reclen);
8582a53a
FB		 9212 tswap64s((uint64_t *)&de->d_ino);
9213 tswap64s((uint64_t *)&de->d_off);
6556a833 9214 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 9215 len -= reclen;
9216 }
9217 }
53a5960a 9218 unlock_user(dirp, arg2, ret);
dab2ed99 9219 }
72eb7ea8 9220 return ret;
a541f297 9221#endif /* TARGET_NR_getdents64 */
9468a5d4 9222#if defined(TARGET_NR__newselect)
31e31b8a 9223 case TARGET_NR__newselect:
72eb7ea8 9224 return do_select(arg1, arg2, arg3, arg4, arg5);
e5febef5 9225#endif
d8035d4c
MF		 9226#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
9227# ifdef TARGET_NR_poll
9de5e440 9228 case TARGET_NR_poll:
d8035d4c
MF		 9229# endif
9230# ifdef TARGET_NR_ppoll
9231 case TARGET_NR_ppoll:
9232# endif
9de5e440 9233 {
53a5960a 9234 struct target_pollfd *target_pfd;
9de5e440 9235 unsigned int nfds = arg2;
9de5e440 9236 struct pollfd *pfd;
7854b056 9237 unsigned int i;
9de5e440 9238
3e24bb3f
LV		 9239 pfd = NULL;
9240 target_pfd = NULL;
9241 if (nfds) {
ce9c139d 9242 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
72eb7ea8 9243 return -TARGET_EINVAL;
ce9c139d
PM		 9244 }
9245
3e24bb3f
LV		 9246 target_pfd = lock_user(VERIFY_WRITE, arg1,
9247 sizeof(struct target_pollfd) * nfds, 1);
9248 if (!target_pfd) {
2852aafd 9249 return -TARGET_EFAULT;
3e24bb3f 9250 }
d8035d4c 9251
3e24bb3f
LV		 9252 pfd = alloca(sizeof(struct pollfd) * nfds);
9253 for (i = 0; i < nfds; i++) {
9254 pfd[i].fd = tswap32(target_pfd[i].fd);
9255 pfd[i].events = tswap16(target_pfd[i].events);
9256 }
9de5e440 9257 }
d8035d4c 9258
a6130237 9259 switch (num) {
d8035d4c 9260# ifdef TARGET_NR_ppoll
a6130237
PM		 9261 case TARGET_NR_ppoll:
9262 {
d8035d4c
MF		 9263 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
9264 target_sigset_t *target_set;
9265 sigset_t _set, *set = &_set;
9266
9267 if (arg3) {
9268 if (target_to_host_timespec(timeout_ts, arg3)) {
9269 unlock_user(target_pfd, arg1, 0);
2852aafd 9270 return -TARGET_EFAULT;
d8035d4c
MF		 9271 }
9272 } else {
9273 timeout_ts = NULL;
9274 }
9275
9276 if (arg4) {
c815701e
PM		 9277 if (arg5 != sizeof(target_sigset_t)) {
9278 unlock_user(target_pfd, arg1, 0);
72eb7ea8 9279 return -TARGET_EINVAL;
c815701e
PM		 9280 }
9281
d8035d4c
MF		 9282 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
9283 if (!target_set) {
9284 unlock_user(target_pfd, arg1, 0);
2852aafd 9285 return -TARGET_EFAULT;
d8035d4c
MF		 9286 }
9287 target_to_host_sigset(set, target_set);
9288 } else {
9289 set = NULL;
9290 }
9291
a6130237
PM		 9292 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
9293 set, SIGSET_T_SIZE));
d8035d4c
MF		 9294
9295 if (!is_error(ret) && arg3) {
9296 host_to_target_timespec(arg3, timeout_ts);
9297 }
9298 if (arg4) {
9299 unlock_user(target_set, arg4, 0);
9300 }
a6130237
PM		 9301 break;
9302 }
d8035d4c 9303# endif
a6130237
PM		 9304# ifdef TARGET_NR_poll
9305 case TARGET_NR_poll:
9306 {
9307 struct timespec ts, *pts;
9308
9309 if (arg3 >= 0) {
9310 /* Convert ms to secs, ns */
9311 ts.tv_sec = arg3 / 1000;
9312 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
9313 pts = &ts;
9314 } else {
9315 /* -ve poll() timeout means "infinite" */
9316 pts = NULL;
9317 }
9318 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
9319 break;
9320 }
d8035d4c 9321# endif
a6130237
PM		 9322 default:
9323 g_assert_not_reached();
9324 }
d8035d4c 9325
9de5e440
FB		 9326 if (!is_error(ret)) {
9327 for(i = 0; i < nfds; i++) {
5cd4393b 9328 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 9329 }
9330 }
30cb4cde 9331 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440 9332 }
72eb7ea8 9333 return ret;
e5febef5 9334#endif
31e31b8a 9335 case TARGET_NR_flock:
9de5e440
FB		 9336 /* NOTE: the flock constant seems to be the same for every
9337 Linux platform */
72eb7ea8 9338 return get_errno(safe_flock(arg1, arg2));
31e31b8a
FB		 9339 case TARGET_NR_readv:
9340 {
f287b2c2
RH		 9341 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9342 if (vec != NULL) {
918c03ed 9343 ret = get_errno(safe_readv(arg1, vec, arg3));
f287b2c2
RH		 9344 unlock_iovec(vec, arg2, arg3, 1);
9345 } else {
9346 ret = -host_to_target_errno(errno);
9347 }
31e31b8a 9348 }
72eb7ea8 9349 return ret;
31e31b8a
FB		 9350 case TARGET_NR_writev:
9351 {
f287b2c2
RH		 9352 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9353 if (vec != NULL) {
918c03ed 9354 ret = get_errno(safe_writev(arg1, vec, arg3));
f287b2c2
RH		 9355 unlock_iovec(vec, arg2, arg3, 0);
9356 } else {
9357 ret = -host_to_target_errno(errno);
9358 }
31e31b8a 9359 }
72eb7ea8 9360 return ret;
0f26386c
DJ		 9361#if defined(TARGET_NR_preadv)
9362 case TARGET_NR_preadv:
9363 {
9364 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9365 if (vec != NULL) {
9ac22517
MF		 9366 unsigned long low, high;
9367
9368 target_to_host_low_high(arg4, arg5, &low, &high);
9369 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
0f26386c
DJ		 9370 unlock_iovec(vec, arg2, arg3, 1);
9371 } else {
9372 ret = -host_to_target_errno(errno);
f8d00fba
DJ		 9373 }
9374 }
72eb7ea8 9375 return ret;
f8d00fba
DJ		 9376#endif
9377#if defined(TARGET_NR_pwritev)
9378 case TARGET_NR_pwritev:
9379 {
9380 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9381 if (vec != NULL) {
9ac22517
MF		 9382 unsigned long low, high;
9383
9384 target_to_host_low_high(arg4, arg5, &low, &high);
9385 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
f8d00fba
DJ		 9386 unlock_iovec(vec, arg2, arg3, 0);
9387 } else {
9388 ret = -host_to_target_errno(errno);
0f26386c
DJ		 9389 }
9390 }
72eb7ea8 9391 return ret;
0f26386c 9392#endif
31e31b8a 9393 case TARGET_NR_getsid:
72eb7ea8 9394 return get_errno(getsid(arg1));
7a3148a9 9395#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 9396 case TARGET_NR_fdatasync:
72eb7ea8 9397 return get_errno(fdatasync(arg1));
7a3148a9 9398#endif
704eff6c 9399#ifdef TARGET_NR__sysctl
31e31b8a 9400 case TARGET_NR__sysctl:
0da46a6e 9401 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 9402 return value. */
72eb7ea8 9403 return -TARGET_ENOTDIR;
704eff6c 9404#endif
737de1d1
MF		 9405 case TARGET_NR_sched_getaffinity:
9406 {
9407 unsigned int mask_size;
9408 unsigned long *mask;
9409
9410 /*
9411 * sched_getaffinity needs multiples of ulong, so need to take
9412 * care of mismatches between target ulong and host ulong sizes.
9413 */
9414 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9415 return -TARGET_EINVAL;
737de1d1
MF		 9416 }
9417 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9418
9419 mask = alloca(mask_size);
2e0a8713 9420 memset(mask, 0, mask_size);
737de1d1
MF		 9421 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9422
9423 if (!is_error(ret)) {
be3bd286
PM		 9424 if (ret > arg2) {
9425 /* More data returned than the caller's buffer will fit.
9426 * This only happens if sizeof(abi_long) < sizeof(long)
9427 * and the caller passed us a buffer holding an odd number
9428 * of abi_longs. If the host kernel is actually using the
9429 * extra 4 bytes then fail EINVAL; otherwise we can just
9430 * ignore them and only copy the interesting part.
9431 */
9432 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9433 if (numcpus > arg2 * 8) {
72eb7ea8 9434 return -TARGET_EINVAL;
be3bd286
PM		 9435 }
9436 ret = arg2;
9437 }
9438
5fdefcf8 9439 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
2852aafd 9440 return -TARGET_EFAULT;
5fdefcf8 9441 }
737de1d1
MF		 9442 }
9443 }
72eb7ea8 9444 return ret;
737de1d1
MF		 9445 case TARGET_NR_sched_setaffinity:
9446 {
9447 unsigned int mask_size;
9448 unsigned long *mask;
9449
9450 /*
9451 * sched_setaffinity needs multiples of ulong, so need to take
9452 * care of mismatches between target ulong and host ulong sizes.
9453 */
9454 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9455 return -TARGET_EINVAL;
737de1d1
MF		 9456 }
9457 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
737de1d1 9458 mask = alloca(mask_size);
2e0a8713
ST		 9459
9460 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
9461 if (ret) {
72eb7ea8 9462 return ret;
737de1d1 9463 }
737de1d1 9464
72eb7ea8 9465 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
737de1d1 9466 }
b827c3ed
ST		 9467 case TARGET_NR_getcpu:
9468 {
9469 unsigned cpu, node;
9470 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
9471 arg2 ? &node : NULL,
9472 NULL));
9473 if (is_error(ret)) {
259841c1 9474 return ret;
b827c3ed
ST		 9475 }
9476 if (arg1 && put_user_u32(cpu, arg1)) {
2852aafd 9477 return -TARGET_EFAULT;
b827c3ed
ST		 9478 }
9479 if (arg2 && put_user_u32(node, arg2)) {
2852aafd 9480 return -TARGET_EFAULT;
b827c3ed
ST		 9481 }
9482 }
72eb7ea8 9483 return ret;
31e31b8a 9484 case TARGET_NR_sched_setparam:
5cd4393b 9485 {
53a5960a 9486 struct sched_param *target_schp;
5cd4393b 9487 struct sched_param schp;
53a5960a 9488
a1d5c5b2
TM		 9489 if (arg2 == 0) {
9490 return -TARGET_EINVAL;
9491 }
579a97f7 9492 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
2852aafd 9493 return -TARGET_EFAULT;
5cd4393b 9494 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9495 unlock_user_struct(target_schp, arg2, 0);
72eb7ea8 9496 return get_errno(sched_setparam(arg1, &schp));
5cd4393b 9497 }
31e31b8a 9498 case TARGET_NR_sched_getparam:
5cd4393b 9499 {
53a5960a 9500 struct sched_param *target_schp;
5cd4393b 9501 struct sched_param schp;
a1d5c5b2
TM		 9502
9503 if (arg2 == 0) {
9504 return -TARGET_EINVAL;
9505 }
5cd4393b
FB		 9506 ret = get_errno(sched_getparam(arg1, &schp));
9507 if (!is_error(ret)) {
579a97f7 9508 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
2852aafd 9509 return -TARGET_EFAULT;
5cd4393b 9510 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 9511 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 9512 }
9513 }
72eb7ea8 9514 return ret;
31e31b8a 9515 case TARGET_NR_sched_setscheduler:
5cd4393b 9516 {
53a5960a 9517 struct sched_param *target_schp;
5cd4393b 9518 struct sched_param schp;
a1d5c5b2
TM		 9519 if (arg3 == 0) {
9520 return -TARGET_EINVAL;
9521 }
579a97f7 9522 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
2852aafd 9523 return -TARGET_EFAULT;
5cd4393b 9524 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9525 unlock_user_struct(target_schp, arg3, 0);
72eb7ea8 9526 return get_errno(sched_setscheduler(arg1, arg2, &schp));
5cd4393b 9527 }
31e31b8a 9528 case TARGET_NR_sched_getscheduler:
72eb7ea8 9529 return get_errno(sched_getscheduler(arg1));
31e31b8a 9530 case TARGET_NR_sched_yield:
72eb7ea8 9531 return get_errno(sched_yield());
31e31b8a 9532 case TARGET_NR_sched_get_priority_max:
72eb7ea8 9533 return get_errno(sched_get_priority_max(arg1));
31e31b8a 9534 case TARGET_NR_sched_get_priority_min:
72eb7ea8 9535 return get_errno(sched_get_priority_min(arg1));
31e31b8a 9536 case TARGET_NR_sched_rr_get_interval:
5cd4393b 9537 {
5cd4393b
FB		 9538 struct timespec ts;
9539 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9540 if (!is_error(ret)) {
d4290c40 9541 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 9542 }
9543 }
72eb7ea8 9544 return ret;
31e31b8a 9545 case TARGET_NR_nanosleep:
1b6b029e 9546 {
1b6b029e 9547 struct timespec req, rem;
53a5960a 9548 target_to_host_timespec(&req, arg1);
9e518226 9549 ret = get_errno(safe_nanosleep(&req, &rem));
53a5960a
PB		 9550 if (is_error(ret) && arg2) {
9551 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 9552 }
9553 }
72eb7ea8 9554 return ret;
31e31b8a 9555 case TARGET_NR_prctl:
1e6722f8
PM		 9556 switch (arg1) {
9557 case PR_GET_PDEATHSIG:
9558 {
9559 int deathsig;
9560 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9561 if (!is_error(ret) && arg2
9562 && put_user_ual(deathsig, arg2)) {
2852aafd 9563 return -TARGET_EFAULT;
e5574487 9564 }
72eb7ea8 9565 return ret;
1e6722f8 9566 }
db9526b1
PM		 9567#ifdef PR_GET_NAME
9568 case PR_GET_NAME:
9569 {
9570 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9571 if (!name) {
2852aafd 9572 return -TARGET_EFAULT;
db9526b1
PM		 9573 }
9574 ret = get_errno(prctl(arg1, (unsigned long)name,
9575 arg3, arg4, arg5));
9576 unlock_user(name, arg2, 16);
72eb7ea8 9577 return ret;
db9526b1
PM		 9578 }
9579 case PR_SET_NAME:
9580 {
9581 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9582 if (!name) {
2852aafd 9583 return -TARGET_EFAULT;
db9526b1
PM		 9584 }
9585 ret = get_errno(prctl(arg1, (unsigned long)name,
9586 arg3, arg4, arg5));
9587 unlock_user(name, arg2, 0);
72eb7ea8 9588 return ret;
db9526b1
PM		 9589 }
9590#endif
5b702ffd
SM		 9591#ifdef TARGET_MIPS
9592 case TARGET_PR_GET_FP_MODE:
64ea3d67
SM		 9593 {
9594 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9595 ret = 0;
9596 if (env->CP0_Status & (1 << CP0St_FR)) {
9597 ret |= TARGET_PR_FP_MODE_FR;
9598 }
9599 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
9600 ret |= TARGET_PR_FP_MODE_FRE;
9601 }
9602 return ret;
9603 }
5b702ffd 9604 case TARGET_PR_SET_FP_MODE:
64ea3d67
SM		 9605 {
9606 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9607 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
6456c510 9608 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
64ea3d67
SM		 9609 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
9610 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
9611
6456c510
SM		 9612 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
9613 TARGET_PR_FP_MODE_FRE;
9614
9615 /* If nothing to change, return right away, successfully. */
9616 if (old_fr == new_fr && old_fre == new_fre) {
9617 return 0;
9618 }
9619 /* Check the value is valid */
9620 if (arg2 & ~known_bits) {
9621 return -TARGET_EOPNOTSUPP;
9622 }
9623 /* Setting FRE without FR is not supported. */
9624 if (new_fre && !new_fr) {
9625 return -TARGET_EOPNOTSUPP;
9626 }
64ea3d67
SM		 9627 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
9628 /* FR1 is not supported */
9629 return -TARGET_EOPNOTSUPP;
9630 }
9631 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
9632 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
9633 /* cannot set FR=0 */
9634 return -TARGET_EOPNOTSUPP;
9635 }
9636 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
9637 /* Cannot set FRE=1 */
9638 return -TARGET_EOPNOTSUPP;
9639 }
9640
9641 int i;
9642 fpr_t *fpr = env->active_fpu.fpr;
9643 for (i = 0; i < 32 ; i += 2) {
9644 if (!old_fr && new_fr) {
9645 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
9646 } else if (old_fr && !new_fr) {
9647 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
9648 }
9649 }
9650
9651 if (new_fr) {
9652 env->CP0_Status |= (1 << CP0St_FR);
9653 env->hflags |= MIPS_HFLAG_F64;
9654 } else {
9655 env->CP0_Status &= ~(1 << CP0St_FR);
6456c510 9656 env->hflags &= ~MIPS_HFLAG_F64;
64ea3d67
SM		 9657 }
9658 if (new_fre) {
9659 env->CP0_Config5 |= (1 << CP0C5_FRE);
9660 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
9661 env->hflags |= MIPS_HFLAG_FRE;
9662 }
9663 } else {
9664 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
6456c510 9665 env->hflags &= ~MIPS_HFLAG_FRE;
64ea3d67
SM		 9666 }
9667
9668 return 0;
9669 }
5b702ffd 9670#endif /* MIPS */
85fc7167
RH		 9671#ifdef TARGET_AARCH64
9672 case TARGET_PR_SVE_SET_VL:
adf92eab
RH		 9673 /*
9674 * We cannot support either PR_SVE_SET_VL_ONEXEC or
9675 * PR_SVE_VL_INHERIT. Note the kernel definition
9676 * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
9677 * even though the current architectural maximum is VQ=16.
9678 */
85fc7167 9679 ret = -TARGET_EINVAL;
cd208a1c 9680 if (cpu_isar_feature(aa64_sve, arm_env_get_cpu(cpu_env))
adf92eab 9681 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
85fc7167 9682 CPUARMState *env = cpu_env;
adf92eab
RH		 9683 ARMCPU *cpu = arm_env_get_cpu(env);
9684 uint32_t vq, old_vq;
9685
9686 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
9687 vq = MAX(arg2 / 16, 1);
9688 vq = MIN(vq, cpu->sve_max_vq);
85fc7167
RH		 9689
9690 if (vq < old_vq) {
9691 aarch64_sve_narrow_vq(env, vq);
9692 }
9693 env->vfp.zcr_el[1] = vq - 1;
9694 ret = vq * 16;
9695 }
72eb7ea8 9696 return ret;
85fc7167
RH		 9697 case TARGET_PR_SVE_GET_VL:
9698 ret = -TARGET_EINVAL;
cd208a1c
RH		 9699 {
9700 ARMCPU *cpu = arm_env_get_cpu(cpu_env);
9701 if (cpu_isar_feature(aa64_sve, cpu)) {
9702 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
9703 }
85fc7167 9704 }
72eb7ea8 9705 return ret;
bff63fbf
RH		 9706 case TARGET_PR_PAC_RESET_KEYS:
9707 {
9708 CPUARMState *env = cpu_env;
9709 ARMCPU *cpu = arm_env_get_cpu(env);
9710
9711 if (arg3 || arg4 || arg5) {
9712 return -TARGET_EINVAL;
9713 }
9714 if (cpu_isar_feature(aa64_pauth, cpu)) {
9715 int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY |
9716 TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY |
9717 TARGET_PR_PAC_APGAKEY);
9718 if (arg2 == 0) {
9719 arg2 = all;
9720 } else if (arg2 & ~all) {
9721 return -TARGET_EINVAL;
9722 }
9723 if (arg2 & TARGET_PR_PAC_APIAKEY) {
9724 arm_init_pauth_key(&env->apia_key);
9725 }
9726 if (arg2 & TARGET_PR_PAC_APIBKEY) {
9727 arm_init_pauth_key(&env->apib_key);
9728 }
9729 if (arg2 & TARGET_PR_PAC_APDAKEY) {
9730 arm_init_pauth_key(&env->apda_key);
9731 }
9732 if (arg2 & TARGET_PR_PAC_APDBKEY) {
9733 arm_init_pauth_key(&env->apdb_key);
9734 }
9735 if (arg2 & TARGET_PR_PAC_APGAKEY) {
9736 arm_init_pauth_key(&env->apga_key);
9737 }
9738 return 0;
9739 }
9740 }
9741 return -TARGET_EINVAL;
85fc7167 9742#endif /* AARCH64 */
a8b154a6
JC		 9743 case PR_GET_SECCOMP:
9744 case PR_SET_SECCOMP:
9745 /* Disable seccomp to prevent the target disabling syscalls we
9746 * need. */
72eb7ea8 9747 return -TARGET_EINVAL;
1e6722f8
PM		 9748 default:
9749 /* Most prctl options have no pointer arguments */
72eb7ea8 9750 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
1e6722f8 9751 }
39b9aae1 9752 break;
d2fd1af7
FB		 9753#ifdef TARGET_NR_arch_prctl
9754 case TARGET_NR_arch_prctl:
9755#if defined(TARGET_I386) && !defined(TARGET_ABI32)
72eb7ea8 9756 return do_arch_prctl(cpu_env, arg1, arg2);
d2fd1af7 9757#else
1a7b2b13 9758#error unreachable
d2fd1af7
FB		 9759#endif
9760#endif
f2c7ba15
AJ		 9761#ifdef TARGET_NR_pread64
9762 case TARGET_NR_pread64:
8bf8e9df 9763 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9764 arg4 = arg5;
9765 arg5 = arg6;
9766 }
2bd3f899
PM		 9767 if (arg2 == 0 && arg3 == 0) {
9768 /* Special-case NULL buffer and zero length, which should succeed */
9769 p = 0;
9770 } else {
9771 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
9772 if (!p) {
9773 return -TARGET_EFAULT;
9774 }
9775 }
f2c7ba15
AJ		 9776 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
9777 unlock_user(p, arg2, ret);
72eb7ea8 9778 return ret;
f2c7ba15 9779 case TARGET_NR_pwrite64:
8bf8e9df 9780 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9781 arg4 = arg5;
9782 arg5 = arg6;
9783 }
2bd3f899
PM		 9784 if (arg2 == 0 && arg3 == 0) {
9785 /* Special-case NULL buffer and zero length, which should succeed */
9786 p = 0;
9787 } else {
9788 p = lock_user(VERIFY_READ, arg2, arg3, 1);
9789 if (!p) {
9790 return -TARGET_EFAULT;
9791 }
9792 }
f2c7ba15
AJ		 9793 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
9794 unlock_user(p, arg2, 0);
72eb7ea8 9795 return ret;
67867308 9796#endif
31e31b8a 9797 case TARGET_NR_getcwd:
579a97f7 9798 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
2852aafd 9799 return -TARGET_EFAULT;
53a5960a
PB		 9800 ret = get_errno(sys_getcwd1(p, arg2));
9801 unlock_user(p, arg1, ret);
72eb7ea8 9802 return ret;
31e31b8a
FB		 9803 case TARGET_NR_capget:
9804 case TARGET_NR_capset:
e0eb210e
PM		 9805 {
9806 struct target_user_cap_header *target_header;
9807 struct target_user_cap_data *target_data = NULL;
9808 struct __user_cap_header_struct header;
9809 struct __user_cap_data_struct data[2];
9810 struct __user_cap_data_struct *dataptr = NULL;
9811 int i, target_datalen;
9812 int data_items = 1;
9813
9814 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
2852aafd 9815 return -TARGET_EFAULT;
e0eb210e
PM		 9816 }
9817 header.version = tswap32(target_header->version);
9818 header.pid = tswap32(target_header->pid);
9819
ec864874 9820 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 9821 /* Version 2 and up takes pointer to two user_data structs */
9822 data_items = 2;
9823 }
9824
9825 target_datalen = sizeof(*target_data) * data_items;
9826
9827 if (arg2) {
9828 if (num == TARGET_NR_capget) {
9829 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
9830 } else {
9831 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
9832 }
9833 if (!target_data) {
9834 unlock_user_struct(target_header, arg1, 0);
2852aafd 9835 return -TARGET_EFAULT;
e0eb210e
PM		 9836 }
9837
9838 if (num == TARGET_NR_capset) {
9839 for (i = 0; i < data_items; i++) {
9840 data[i].effective = tswap32(target_data[i].effective);
9841 data[i].permitted = tswap32(target_data[i].permitted);
9842 data[i].inheritable = tswap32(target_data[i].inheritable);
9843 }
9844 }
9845
9846 dataptr = data;
9847 }
9848
9849 if (num == TARGET_NR_capget) {
9850 ret = get_errno(capget(&header, dataptr));
9851 } else {
9852 ret = get_errno(capset(&header, dataptr));
9853 }
9854
9855 /* The kernel always updates version for both capget and capset */
9856 target_header->version = tswap32(header.version);
9857 unlock_user_struct(target_header, arg1, 1);
9858
9859 if (arg2) {
9860 if (num == TARGET_NR_capget) {
9861 for (i = 0; i < data_items; i++) {
9862 target_data[i].effective = tswap32(data[i].effective);
9863 target_data[i].permitted = tswap32(data[i].permitted);
9864 target_data[i].inheritable = tswap32(data[i].inheritable);
9865 }
9866 unlock_user(target_data, arg2, target_datalen);
9867 } else {
9868 unlock_user(target_data, arg2, 0);
9869 }
9870 }
72eb7ea8 9871 return ret;
e0eb210e 9872 }
31e31b8a 9873 case TARGET_NR_sigaltstack:
72eb7ea8
RH		 9874 return do_sigaltstack(arg1, arg2,
9875 get_sp_from_cpustate((CPUArchState *)cpu_env));
a8fd1aba
PM		 9876
9877#ifdef CONFIG_SENDFILE
4f7f8924 9878#ifdef TARGET_NR_sendfile
a8fd1aba
PM		 9879 case TARGET_NR_sendfile:
9880 {
9881 off_t *offp = NULL;
9882 off_t off;
9883 if (arg3) {
9884 ret = get_user_sal(off, arg3);
9885 if (is_error(ret)) {
72eb7ea8 9886 return ret;
a8fd1aba
PM		 9887 }
9888 offp = &off;
9889 }
9890 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9891 if (!is_error(ret) && arg3) {
9892 abi_long ret2 = put_user_sal(off, arg3);
9893 if (is_error(ret2)) {
9894 ret = ret2;
9895 }
9896 }
72eb7ea8 9897 return ret;
a8fd1aba 9898 }
4f7f8924 9899#endif
a8fd1aba
PM		 9900#ifdef TARGET_NR_sendfile64
9901 case TARGET_NR_sendfile64:
9902 {
9903 off_t *offp = NULL;
9904 off_t off;
9905 if (arg3) {
9906 ret = get_user_s64(off, arg3);
9907 if (is_error(ret)) {
72eb7ea8 9908 return ret;
a8fd1aba
PM		 9909 }
9910 offp = &off;
9911 }
9912 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9913 if (!is_error(ret) && arg3) {
9914 abi_long ret2 = put_user_s64(off, arg3);
9915 if (is_error(ret2)) {
9916 ret = ret2;
9917 }
9918 }
72eb7ea8 9919 return ret;
a8fd1aba
PM		 9920 }
9921#endif
ebc05488 9922#endif
048f6b4d 9923#ifdef TARGET_NR_vfork
31e31b8a 9924 case TARGET_NR_vfork:
72eb7ea8
RH		 9925 return get_errno(do_fork(cpu_env,
9926 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
9927 0, 0, 0, 0));
048f6b4d 9928#endif
ebc05488 9929#ifdef TARGET_NR_ugetrlimit
31e31b8a 9930 case TARGET_NR_ugetrlimit:
728584be
FB		 9931 {
9932 struct rlimit rlim;
e22b7015
WT		 9933 int resource = target_to_host_resource(arg1);
9934 ret = get_errno(getrlimit(resource, &rlim));
728584be 9935 if (!is_error(ret)) {
53a5960a 9936 struct target_rlimit *target_rlim;
579a97f7 9937 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 9938 return -TARGET_EFAULT;
81bbe906
TY		 9939 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9940 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 9941 unlock_user_struct(target_rlim, arg2, 1);
728584be 9942 }
72eb7ea8 9943 return ret;
728584be 9944 }
ebc05488 9945#endif
a315a145 9946#ifdef TARGET_NR_truncate64
31e31b8a 9947 case TARGET_NR_truncate64:
579a97f7 9948 if (!(p = lock_user_string(arg1)))
2852aafd 9949 return -TARGET_EFAULT;
53a5960a
PB		 9950 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
9951 unlock_user(p, arg1, 0);
72eb7ea8 9952 return ret;
a315a145
FB		 9953#endif
9954#ifdef TARGET_NR_ftruncate64
31e31b8a 9955 case TARGET_NR_ftruncate64:
72eb7ea8 9956 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
a315a145
FB		 9957#endif
9958#ifdef TARGET_NR_stat64
31e31b8a 9959 case TARGET_NR_stat64:
2852aafd
RH		 9960 if (!(p = lock_user_string(arg1))) {
9961 return -TARGET_EFAULT;
9962 }
53a5960a
PB		 9963 ret = get_errno(stat(path(p), &st));
9964 unlock_user(p, arg1, 0);
6a24a778
AZ		 9965 if (!is_error(ret))
9966 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9967 return ret;
a315a145
FB		 9968#endif
9969#ifdef TARGET_NR_lstat64
31e31b8a 9970 case TARGET_NR_lstat64:
2852aafd
RH		 9971 if (!(p = lock_user_string(arg1))) {
9972 return -TARGET_EFAULT;
9973 }
53a5960a
PB		 9974 ret = get_errno(lstat(path(p), &st));
9975 unlock_user(p, arg1, 0);
6a24a778
AZ		 9976 if (!is_error(ret))
9977 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9978 return ret;
a315a145
FB		 9979#endif
9980#ifdef TARGET_NR_fstat64
31e31b8a 9981 case TARGET_NR_fstat64:
6a24a778
AZ		 9982 ret = get_errno(fstat(arg1, &st));
9983 if (!is_error(ret))
9984 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9985 return ret;
ce4defa0 9986#endif
c0d472b1 9987#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 9988#ifdef TARGET_NR_fstatat64
6a24a778 9989 case TARGET_NR_fstatat64:
9d33b76b
AJ		 9990#endif
9991#ifdef TARGET_NR_newfstatat
9992 case TARGET_NR_newfstatat:
9993#endif
2852aafd
RH		 9994 if (!(p = lock_user_string(arg2))) {
9995 return -TARGET_EFAULT;
9996 }
c0d472b1 9997 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
2852aafd 9998 unlock_user(p, arg2, 0);
6a24a778
AZ		 9999 if (!is_error(ret))
10000 ret = host_to_target_stat64(cpu_env, arg3, &st);
72eb7ea8 10001 return ret;
a315a145 10002#endif
704eff6c 10003#ifdef TARGET_NR_lchown
67867308 10004 case TARGET_NR_lchown:
579a97f7 10005 if (!(p = lock_user_string(arg1)))
2852aafd 10006 return -TARGET_EFAULT;
53a5960a
PB		 10007 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
10008 unlock_user(p, arg1, 0);
72eb7ea8 10009 return ret;
704eff6c 10010#endif
0c866a7e 10011#ifdef TARGET_NR_getuid
67867308 10012 case TARGET_NR_getuid:
72eb7ea8 10013 return get_errno(high2lowuid(getuid()));
0c866a7e
RV		 10014#endif
10015#ifdef TARGET_NR_getgid
67867308 10016 case TARGET_NR_getgid:
72eb7ea8 10017 return get_errno(high2lowgid(getgid()));
0c866a7e
RV		 10018#endif
10019#ifdef TARGET_NR_geteuid
67867308 10020 case TARGET_NR_geteuid:
72eb7ea8 10021 return get_errno(high2lowuid(geteuid()));
0c866a7e
RV		 10022#endif
10023#ifdef TARGET_NR_getegid
67867308 10024 case TARGET_NR_getegid:
72eb7ea8 10025 return get_errno(high2lowgid(getegid()));
0c866a7e 10026#endif
67867308 10027 case TARGET_NR_setreuid:
72eb7ea8 10028 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
67867308 10029 case TARGET_NR_setregid:
72eb7ea8 10030 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
67867308
FB		 10031 case TARGET_NR_getgroups:
10032 {
10033 int gidsetsize = arg1;
0c866a7e 10034 target_id *target_grouplist;
67867308
FB		 10035 gid_t *grouplist;
10036 int i;
10037
10038 grouplist = alloca(gidsetsize * sizeof(gid_t));
10039 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10040 if (gidsetsize == 0)
72eb7ea8 10041 return ret;
67867308 10042 if (!is_error(ret)) {
03903ffc 10043 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7 10044 if (!target_grouplist)
2852aafd 10045 return -TARGET_EFAULT;
a2155fcc 10046 for(i = 0;i < ret; i++)
0c866a7e 10047 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 10048 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 10049 }
10050 }
72eb7ea8 10051 return ret;
67867308
FB		 10052 case TARGET_NR_setgroups:
10053 {
10054 int gidsetsize = arg1;
0c866a7e 10055 target_id *target_grouplist;
f2b79ce9 10056 gid_t *grouplist = NULL;
67867308 10057 int i;
f2b79ce9
DA		 10058 if (gidsetsize) {
10059 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 10060 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9 10061 if (!target_grouplist) {
259841c1 10062 return -TARGET_EFAULT;
f2b79ce9
DA		 10063 }
10064 for (i = 0; i < gidsetsize; i++) {
10065 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
10066 }
10067 unlock_user(target_grouplist, arg2, 0);
579a97f7 10068 }
72eb7ea8 10069 return get_errno(setgroups(gidsetsize, grouplist));
67867308 10070 }
67867308 10071 case TARGET_NR_fchown:
72eb7ea8 10072 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
c0d472b1 10073#if defined(TARGET_NR_fchownat)
ccfa72b7 10074 case TARGET_NR_fchownat:
579a97f7 10075 if (!(p = lock_user_string(arg2)))
2852aafd 10076 return -TARGET_EFAULT;
c0d472b1
PM		 10077 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
10078 low2highgid(arg4), arg5));
579a97f7 10079 unlock_user(p, arg2, 0);
72eb7ea8 10080 return ret;
ccfa72b7 10081#endif
67867308
FB		 10082#ifdef TARGET_NR_setresuid
10083 case TARGET_NR_setresuid:
72eb7ea8
RH		 10084 return get_errno(sys_setresuid(low2highuid(arg1),
10085 low2highuid(arg2),
10086 low2highuid(arg3)));
67867308
FB		 10087#endif
10088#ifdef TARGET_NR_getresuid
10089 case TARGET_NR_getresuid:
10090 {
53a5960a 10091 uid_t ruid, euid, suid;
67867308
FB		 10092 ret = get_errno(getresuid(&ruid, &euid, &suid));
10093 if (!is_error(ret)) {
76ca310a
PM		 10094 if (put_user_id(high2lowuid(ruid), arg1)
10095 || put_user_id(high2lowuid(euid), arg2)
10096 || put_user_id(high2lowuid(suid), arg3))
2852aafd 10097 return -TARGET_EFAULT;
67867308
FB		 10098 }
10099 }
72eb7ea8 10100 return ret;
67867308
FB		 10101#endif
10102#ifdef TARGET_NR_getresgid
10103 case TARGET_NR_setresgid:
72eb7ea8
RH		 10104 return get_errno(sys_setresgid(low2highgid(arg1),
10105 low2highgid(arg2),
10106 low2highgid(arg3)));
67867308
FB		 10107#endif
10108#ifdef TARGET_NR_getresgid
10109 case TARGET_NR_getresgid:
10110 {
53a5960a 10111 gid_t rgid, egid, sgid;
67867308
FB		 10112 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10113 if (!is_error(ret)) {
76ca310a
PM		 10114 if (put_user_id(high2lowgid(rgid), arg1)
10115 || put_user_id(high2lowgid(egid), arg2)
10116 || put_user_id(high2lowgid(sgid), arg3))
2852aafd 10117 return -TARGET_EFAULT;
67867308
FB		 10118 }
10119 }
72eb7ea8 10120 return ret;
67867308 10121#endif
704eff6c 10122#ifdef TARGET_NR_chown
67867308 10123 case TARGET_NR_chown:
579a97f7 10124 if (!(p = lock_user_string(arg1)))
2852aafd 10125 return -TARGET_EFAULT;
53a5960a
PB		 10126 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
10127 unlock_user(p, arg1, 0);
72eb7ea8 10128 return ret;
704eff6c 10129#endif
67867308 10130 case TARGET_NR_setuid:
72eb7ea8 10131 return get_errno(sys_setuid(low2highuid(arg1)));
67867308 10132 case TARGET_NR_setgid:
72eb7ea8 10133 return get_errno(sys_setgid(low2highgid(arg1)));
67867308 10134 case TARGET_NR_setfsuid:
72eb7ea8 10135 return get_errno(setfsuid(arg1));
67867308 10136 case TARGET_NR_setfsgid:
72eb7ea8 10137 return get_errno(setfsgid(arg1));
67867308 10138
a315a145 10139#ifdef TARGET_NR_lchown32
31e31b8a 10140 case TARGET_NR_lchown32:
579a97f7 10141 if (!(p = lock_user_string(arg1)))
2852aafd 10142 return -TARGET_EFAULT;
53a5960a
PB		 10143 ret = get_errno(lchown(p, arg2, arg3));
10144 unlock_user(p, arg1, 0);
72eb7ea8 10145 return ret;
a315a145
FB		 10146#endif
10147#ifdef TARGET_NR_getuid32
31e31b8a 10148 case TARGET_NR_getuid32:
72eb7ea8 10149 return get_errno(getuid());
a315a145 10150#endif
64b4d28c
AJ		 10151
10152#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
10153 /* Alpha specific */
10154 case TARGET_NR_getxuid:
ba0e276d
RH		 10155 {
10156 uid_t euid;
10157 euid=geteuid();
10158 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
10159 }
72eb7ea8 10160 return get_errno(getuid());
64b4d28c
AJ		 10161#endif
10162#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
10163 /* Alpha specific */
10164 case TARGET_NR_getxgid:
ba0e276d
RH		 10165 {
10166 uid_t egid;
10167 egid=getegid();
10168 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
10169 }
72eb7ea8 10170 return get_errno(getgid());
64b4d28c 10171#endif
ba0e276d
RH		 10172#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
10173 /* Alpha specific */
10174 case TARGET_NR_osf_getsysinfo:
10175 ret = -TARGET_EOPNOTSUPP;
10176 switch (arg1) {
10177 case TARGET_GSI_IEEE_FP_CONTROL:
10178 {
10179 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
10180
10181 /* Copied from linux ieee_fpcr_to_swcr. */
10182 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
10183 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
10184 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
10185 | SWCR_TRAP_ENABLE_DZE
10186 | SWCR_TRAP_ENABLE_OVF);
10187 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
10188 | SWCR_TRAP_ENABLE_INE);
10189 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
10190 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
10191
10192 if (put_user_u64 (swcr, arg2))
2852aafd 10193 return -TARGET_EFAULT;
ba0e276d
RH		 10194 ret = 0;
10195 }
10196 break;
10197
10198 /* case GSI_IEEE_STATE_AT_SIGNAL:
10199 -- Not implemented in linux kernel.
10200 case GSI_UACPROC:
10201 -- Retrieves current unaligned access state; not much used.
10202 case GSI_PROC_TYPE:
10203 -- Retrieves implver information; surely not used.
10204 case GSI_GET_HWRPB:
10205 -- Grabs a copy of the HWRPB; surely not used.
10206 */
10207 }
72eb7ea8 10208 return ret;
ba0e276d
RH		 10209#endif
10210#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
10211 /* Alpha specific */
10212 case TARGET_NR_osf_setsysinfo:
10213 ret = -TARGET_EOPNOTSUPP;
10214 switch (arg1) {
10215 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d
RH		 10216 {
10217 uint64_t swcr, fpcr, orig_fpcr;
10218
6e06d515 10219 if (get_user_u64 (swcr, arg2)) {
2852aafd 10220 return -TARGET_EFAULT;
6e06d515
RH		 10221 }
10222 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d
RH		 10223 fpcr = orig_fpcr & FPCR_DYN_MASK;
10224
10225 /* Copied from linux ieee_swcr_to_fpcr. */
10226 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
10227 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
10228 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
10229 | SWCR_TRAP_ENABLE_DZE
10230 | SWCR_TRAP_ENABLE_OVF)) << 48;
10231 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
10232 | SWCR_TRAP_ENABLE_INE)) << 57;
10233 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
10234 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
10235
6e06d515 10236 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 10237 ret = 0;
6e06d515
RH		 10238 }
10239 break;
10240
10241 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
10242 {
10243 uint64_t exc, fpcr, orig_fpcr;
10244 int si_code;
10245
10246 if (get_user_u64(exc, arg2)) {
2852aafd 10247 return -TARGET_EFAULT;
6e06d515 10248 }
ba0e276d 10249
6e06d515 10250 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 10251
6e06d515
RH		 10252 /* We only add to the exception status here. */
10253 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
10254
10255 cpu_alpha_store_fpcr(cpu_env, fpcr);
10256 ret = 0;
10257
10258 /* Old exceptions are not signaled. */
10259 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
10260
10261 /* If any exceptions set by this call,
10262 and are unmasked, send a signal. */
10263 si_code = 0;
10264 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
10265 si_code = TARGET_FPE_FLTRES;
10266 }
10267 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
10268 si_code = TARGET_FPE_FLTUND;
10269 }
10270 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
10271 si_code = TARGET_FPE_FLTOVF;
10272 }
10273 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
10274 si_code = TARGET_FPE_FLTDIV;
10275 }
10276 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
10277 si_code = TARGET_FPE_FLTINV;
10278 }
10279 if (si_code != 0) {
10280 target_siginfo_t info;
10281 info.si_signo = SIGFPE;
10282 info.si_errno = 0;
10283 info.si_code = si_code;
10284 info._sifields._sigfault._addr
10285 = ((CPUArchState *)cpu_env)->pc;
9d2803f7
PM		 10286 queue_signal((CPUArchState *)cpu_env, info.si_signo,
10287 QEMU_SI_FAULT, &info);
ba0e276d
RH		 10288 }
10289 }
10290 break;
10291
10292 /* case SSI_NVPAIRS:
10293 -- Used with SSIN_UACPROC to enable unaligned accesses.
10294 case SSI_IEEE_STATE_AT_SIGNAL:
10295 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
10296 -- Not implemented in linux kernel
10297 */
10298 }
72eb7ea8 10299 return ret;
ba0e276d
RH		 10300#endif
10301#ifdef TARGET_NR_osf_sigprocmask
10302 /* Alpha specific. */
10303 case TARGET_NR_osf_sigprocmask:
10304 {
10305 abi_ulong mask;
bc088ba1 10306 int how;
ba0e276d
RH		 10307 sigset_t set, oldset;
10308
10309 switch(arg1) {
10310 case TARGET_SIG_BLOCK:
10311 how = SIG_BLOCK;
10312 break;
10313 case TARGET_SIG_UNBLOCK:
10314 how = SIG_UNBLOCK;
10315 break;
10316 case TARGET_SIG_SETMASK:
10317 how = SIG_SETMASK;
10318 break;
10319 default:
259841c1 10320 return -TARGET_EINVAL;
ba0e276d
RH		 10321 }
10322 mask = arg2;
10323 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 10324 ret = do_sigprocmask(how, &set, &oldset);
10325 if (!ret) {
10326 host_to_target_old_sigset(&mask, &oldset);
10327 ret = mask;
10328 }
ba0e276d 10329 }
72eb7ea8 10330 return ret;
ba0e276d 10331#endif
64b4d28c 10332
a315a145 10333#ifdef TARGET_NR_getgid32
31e31b8a 10334 case TARGET_NR_getgid32:
72eb7ea8 10335 return get_errno(getgid());
a315a145
FB		 10336#endif
10337#ifdef TARGET_NR_geteuid32
31e31b8a 10338 case TARGET_NR_geteuid32:
72eb7ea8 10339 return get_errno(geteuid());
a315a145
FB		 10340#endif
10341#ifdef TARGET_NR_getegid32
31e31b8a 10342 case TARGET_NR_getegid32:
72eb7ea8 10343 return get_errno(getegid());
a315a145
FB		 10344#endif
10345#ifdef TARGET_NR_setreuid32
31e31b8a 10346 case TARGET_NR_setreuid32:
72eb7ea8 10347 return get_errno(setreuid(arg1, arg2));
a315a145
FB		 10348#endif
10349#ifdef TARGET_NR_setregid32
31e31b8a 10350 case TARGET_NR_setregid32:
72eb7ea8 10351 return get_errno(setregid(arg1, arg2));
a315a145
FB		 10352#endif
10353#ifdef TARGET_NR_getgroups32
31e31b8a 10354 case TARGET_NR_getgroups32:
99c475ab
FB		 10355 {
10356 int gidsetsize = arg1;
53a5960a 10357 uint32_t *target_grouplist;
99c475ab
FB		 10358 gid_t *grouplist;
10359 int i;
10360
10361 grouplist = alloca(gidsetsize * sizeof(gid_t));
10362 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10363 if (gidsetsize == 0)
72eb7ea8 10364 return ret;
99c475ab 10365 if (!is_error(ret)) {
579a97f7
FB		 10366 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
10367 if (!target_grouplist) {
259841c1 10368 return -TARGET_EFAULT;
579a97f7 10369 }
a2155fcc 10370 for(i = 0;i < ret; i++)
53a5960a
PB		 10371 target_grouplist[i] = tswap32(grouplist[i]);
10372 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 10373 }
10374 }
72eb7ea8 10375 return ret;
a315a145
FB		 10376#endif
10377#ifdef TARGET_NR_setgroups32
31e31b8a 10378 case TARGET_NR_setgroups32:
99c475ab
FB		 10379 {
10380 int gidsetsize = arg1;
53a5960a 10381 uint32_t *target_grouplist;
99c475ab
FB		 10382 gid_t *grouplist;
10383 int i;
3b46e624 10384
99c475ab 10385 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 10386 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
10387 if (!target_grouplist) {
259841c1 10388 return -TARGET_EFAULT;
579a97f7 10389 }
99c475ab 10390 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 10391 grouplist[i] = tswap32(target_grouplist[i]);
10392 unlock_user(target_grouplist, arg2, 0);
72eb7ea8 10393 return get_errno(setgroups(gidsetsize, grouplist));
99c475ab 10394 }
a315a145
FB		 10395#endif
10396#ifdef TARGET_NR_fchown32
31e31b8a 10397 case TARGET_NR_fchown32:
72eb7ea8 10398 return get_errno(fchown(arg1, arg2, arg3));
a315a145
FB		 10399#endif
10400#ifdef TARGET_NR_setresuid32
31e31b8a 10401 case TARGET_NR_setresuid32:
72eb7ea8 10402 return get_errno(sys_setresuid(arg1, arg2, arg3));
a315a145
FB		 10403#endif
10404#ifdef TARGET_NR_getresuid32
31e31b8a 10405 case TARGET_NR_getresuid32:
b03c60f3 10406 {
53a5960a 10407 uid_t ruid, euid, suid;
b03c60f3
FB		 10408 ret = get_errno(getresuid(&ruid, &euid, &suid));
10409 if (!is_error(ret)) {
2f619698
FB		 10410 if (put_user_u32(ruid, arg1)
10411 || put_user_u32(euid, arg2)
10412 || put_user_u32(suid, arg3))
2852aafd 10413 return -TARGET_EFAULT;
b03c60f3
FB		 10414 }
10415 }
72eb7ea8 10416 return ret;
a315a145
FB		 10417#endif
10418#ifdef TARGET_NR_setresgid32
31e31b8a 10419 case TARGET_NR_setresgid32:
72eb7ea8 10420 return get_errno(sys_setresgid(arg1, arg2, arg3));
a315a145
FB		 10421#endif
10422#ifdef TARGET_NR_getresgid32
31e31b8a 10423 case TARGET_NR_getresgid32:
b03c60f3 10424 {
53a5960a 10425 gid_t rgid, egid, sgid;
b03c60f3
FB		 10426 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10427 if (!is_error(ret)) {
2f619698
FB		 10428 if (put_user_u32(rgid, arg1)
10429 || put_user_u32(egid, arg2)
10430 || put_user_u32(sgid, arg3))
2852aafd 10431 return -TARGET_EFAULT;
b03c60f3
FB		 10432 }
10433 }
72eb7ea8 10434 return ret;
a315a145
FB		 10435#endif
10436#ifdef TARGET_NR_chown32
31e31b8a 10437 case TARGET_NR_chown32:
579a97f7 10438 if (!(p = lock_user_string(arg1)))
2852aafd 10439 return -TARGET_EFAULT;
53a5960a
PB		 10440 ret = get_errno(chown(p, arg2, arg3));
10441 unlock_user(p, arg1, 0);
72eb7ea8 10442 return ret;
a315a145
FB		 10443#endif
10444#ifdef TARGET_NR_setuid32
31e31b8a 10445 case TARGET_NR_setuid32:
72eb7ea8 10446 return get_errno(sys_setuid(arg1));
a315a145
FB		 10447#endif
10448#ifdef TARGET_NR_setgid32
31e31b8a 10449 case TARGET_NR_setgid32:
72eb7ea8 10450 return get_errno(sys_setgid(arg1));
a315a145
FB		 10451#endif
10452#ifdef TARGET_NR_setfsuid32
31e31b8a 10453 case TARGET_NR_setfsuid32:
72eb7ea8 10454 return get_errno(setfsuid(arg1));
a315a145
FB		 10455#endif
10456#ifdef TARGET_NR_setfsgid32
31e31b8a 10457 case TARGET_NR_setfsgid32:
72eb7ea8 10458 return get_errno(setfsgid(arg1));
a315a145 10459#endif
ffa65c3b 10460#ifdef TARGET_NR_mincore
31e31b8a 10461 case TARGET_NR_mincore:
04bb9ace 10462 {
259841c1 10463 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
98a3331a 10464 if (!a) {
259841c1 10465 return -TARGET_ENOMEM;
98a3331a 10466 }
98a3331a
FSM		 10467 p = lock_user_string(arg3);
10468 if (!p) {
259841c1
RH		 10469 ret = -TARGET_EFAULT;
10470 } else {
10471 ret = get_errno(mincore(a, arg2, p));
10472 unlock_user(p, arg3, ret);
98a3331a 10473 }
04bb9ace
AJ		 10474 unlock_user(a, arg1, 0);
10475 }
72eb7ea8 10476 return ret;
ffa65c3b 10477#endif
408321b6
AJ		 10478#ifdef TARGET_NR_arm_fadvise64_64
10479 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 10480 /* arm_fadvise64_64 looks like fadvise64_64 but
10481 * with different argument order: fd, advice, offset, len
10482 * rather than the usual fd, offset, len, advice.
10483 * Note that offset and len are both 64-bit so appear as
10484 * pairs of 32-bit registers.
10485 */
10486 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
10487 target_offset64(arg5, arg6), arg2);
72eb7ea8 10488 return -host_to_target_errno(ret);
408321b6 10489#endif
badd3cd8
PM		 10490
10491#if TARGET_ABI_BITS == 32
10492
10493#ifdef TARGET_NR_fadvise64_64
10494 case TARGET_NR_fadvise64_64:
64a563dd 10495#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
43046b5a
LV		 10496 /* 6 args: fd, advice, offset (high, low), len (high, low) */
10497 ret = arg2;
10498 arg2 = arg3;
10499 arg3 = arg4;
10500 arg4 = arg5;
10501 arg5 = arg6;
10502 arg6 = ret;
10503#else
badd3cd8 10504 /* 6 args: fd, offset (high, low), len (high, low), advice */
8bf8e9df 10505 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10506 /* offset is in (3,4), len in (5,6) and advice in 7 */
10507 arg2 = arg3;
10508 arg3 = arg4;
10509 arg4 = arg5;
10510 arg5 = arg6;
10511 arg6 = arg7;
10512 }
43046b5a 10513#endif
72eb7ea8
RH		 10514 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
10515 target_offset64(arg4, arg5), arg6);
10516 return -host_to_target_errno(ret);
badd3cd8
PM		 10517#endif
10518
10519#ifdef TARGET_NR_fadvise64
10520 case TARGET_NR_fadvise64:
10521 /* 5 args: fd, offset (high, low), len, advice */
8bf8e9df 10522 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10523 /* offset is in (3,4), len in 5 and advice in 6 */
10524 arg2 = arg3;
10525 arg3 = arg4;
10526 arg4 = arg5;
10527 arg5 = arg6;
10528 }
72eb7ea8
RH		 10529 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
10530 return -host_to_target_errno(ret);
408321b6 10531#endif
badd3cd8
PM		 10532
10533#else /* not a 32-bit ABI */
e0156a9d 10534#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 10535#ifdef TARGET_NR_fadvise64_64
10536 case TARGET_NR_fadvise64_64:
10537#endif
e72d2cc7
UH		 10538#ifdef TARGET_NR_fadvise64
10539 case TARGET_NR_fadvise64:
10540#endif
10541#ifdef TARGET_S390X
10542 switch (arg4) {
10543 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
10544 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
10545 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10546 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10547 default: break;
10548 }
10549#endif
72eb7ea8 10550 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
408321b6 10551#endif
badd3cd8
PM		 10552#endif /* end of 64-bit ABI fadvise handling */
10553
ffa65c3b 10554#ifdef TARGET_NR_madvise
31e31b8a 10555 case TARGET_NR_madvise:
24836689 10556 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 10557 turns private file-backed mappings into anonymous mappings.
24836689
PB		 10558 This will break MADV_DONTNEED.
10559 This is a hint, so ignoring and returning success is ok. */
72eb7ea8 10560 return 0;
ffa65c3b 10561#endif
992f48a0 10562#if TARGET_ABI_BITS == 32
31e31b8a 10563 case TARGET_NR_fcntl64:
77e4672d 10564 {
b1e341eb 10565 int cmd;
77e4672d 10566 struct flock64 fl;
213d3e9e
PM		 10567 from_flock64_fn *copyfrom = copy_from_user_flock64;
10568 to_flock64_fn *copyto = copy_to_user_flock64;
10569
ce4defa0 10570#ifdef TARGET_ARM
7f254c5c
LV		 10571 if (!((CPUARMState *)cpu_env)->eabi) {
10572 copyfrom = copy_from_user_oabi_flock64;
10573 copyto = copy_to_user_oabi_flock64;
213d3e9e 10574 }
ce4defa0 10575#endif
77e4672d 10576
5f106811 10577 cmd = target_to_host_fcntl_cmd(arg2);
31b63193 10578 if (cmd == -TARGET_EINVAL) {
72eb7ea8 10579 return cmd;
31b63193 10580 }
b1e341eb 10581
60cd49d5 10582 switch(arg2) {
b1e341eb 10583 case TARGET_F_GETLK64:
213d3e9e
PM		 10584 ret = copyfrom(&fl, arg3);
10585 if (ret) {
10586 break;
5813427b 10587 }
af8ab2bf 10588 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
213d3e9e
PM		 10589 if (ret == 0) {
10590 ret = copyto(arg3, &fl);
10591 }
77e4672d
FB		 10592 break;
10593
b1e341eb
TS		 10594 case TARGET_F_SETLK64:
10595 case TARGET_F_SETLKW64:
213d3e9e
PM		 10596 ret = copyfrom(&fl, arg3);
10597 if (ret) {
10598 break;
ce4defa0 10599 }
435da5e7 10600 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
77e4672d 10601 break;
60cd49d5 10602 default:
5f106811 10603 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 10604 break;
10605 }
72eb7ea8 10606 return ret;
77e4672d 10607 }
60cd49d5 10608#endif
7d600c80
TS		 10609#ifdef TARGET_NR_cacheflush
10610 case TARGET_NR_cacheflush:
10611 /* self-modifying code is handled automatically, so nothing needed */
72eb7ea8 10612 return 0;
7d600c80 10613#endif
c573ff67
FB		 10614#ifdef TARGET_NR_getpagesize
10615 case TARGET_NR_getpagesize:
72eb7ea8 10616 return TARGET_PAGE_SIZE;
ebc05488 10617#endif
31e31b8a 10618 case TARGET_NR_gettid:
72eb7ea8 10619 return get_errno(gettid());
e5febef5 10620#ifdef TARGET_NR_readahead
31e31b8a 10621 case TARGET_NR_readahead:
2054ac9b 10622#if TARGET_ABI_BITS == 32
8bf8e9df 10623 if (regpairs_aligned(cpu_env, num)) {
2054ac9b
AJ		 10624 arg2 = arg3;
10625 arg3 = arg4;
10626 arg4 = arg5;
10627 }
77c6850f 10628 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
2054ac9b
AJ		 10629#else
10630 ret = get_errno(readahead(arg1, arg2, arg3));
10631#endif
72eb7ea8 10632 return ret;
e5febef5 10633#endif
a790ae38 10634#ifdef CONFIG_ATTR
ebc05488 10635#ifdef TARGET_NR_setxattr
31e31b8a
FB		 10636 case TARGET_NR_listxattr:
10637 case TARGET_NR_llistxattr:
fb5590f7
PM		 10638 {
10639 void *p, *b = 0;
10640 if (arg2) {
10641 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10642 if (!b) {
72eb7ea8 10643 return -TARGET_EFAULT;
fb5590f7
PM		 10644 }
10645 }
10646 p = lock_user_string(arg1);
10647 if (p) {
10648 if (num == TARGET_NR_listxattr) {
10649 ret = get_errno(listxattr(p, b, arg3));
10650 } else {
10651 ret = get_errno(llistxattr(p, b, arg3));
10652 }
10653 } else {
10654 ret = -TARGET_EFAULT;
10655 }
10656 unlock_user(p, arg1, 0);
10657 unlock_user(b, arg2, arg3);
72eb7ea8 10658 return ret;
fb5590f7 10659 }
31e31b8a 10660 case TARGET_NR_flistxattr:
fb5590f7
PM		 10661 {
10662 void *b = 0;
10663 if (arg2) {
10664 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10665 if (!b) {
72eb7ea8 10666 return -TARGET_EFAULT;
fb5590f7
PM		 10667 }
10668 }
10669 ret = get_errno(flistxattr(arg1, b, arg3));
10670 unlock_user(b, arg2, arg3);
72eb7ea8 10671 return ret;
fb5590f7 10672 }
a790ae38 10673 case TARGET_NR_setxattr:
30297b55 10674 case TARGET_NR_lsetxattr:
a790ae38 10675 {
e3c33ec6
PM		 10676 void *p, *n, *v = 0;
10677 if (arg3) {
10678 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10679 if (!v) {
72eb7ea8 10680 return -TARGET_EFAULT;
e3c33ec6
PM		 10681 }
10682 }
a790ae38
ACH		 10683 p = lock_user_string(arg1);
10684 n = lock_user_string(arg2);
e3c33ec6 10685 if (p && n) {
30297b55
PM		 10686 if (num == TARGET_NR_setxattr) {
10687 ret = get_errno(setxattr(p, n, v, arg4, arg5));
10688 } else {
10689 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
10690 }
a790ae38
ACH		 10691 } else {
10692 ret = -TARGET_EFAULT;
10693 }
10694 unlock_user(p, arg1, 0);
10695 unlock_user(n, arg2, 0);
10696 unlock_user(v, arg3, 0);
10697 }
72eb7ea8 10698 return ret;
30297b55
PM		 10699 case TARGET_NR_fsetxattr:
10700 {
10701 void *n, *v = 0;
10702 if (arg3) {
10703 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10704 if (!v) {
72eb7ea8 10705 return -TARGET_EFAULT;
30297b55
PM		 10706 }
10707 }
10708 n = lock_user_string(arg2);
10709 if (n) {
10710 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
10711 } else {
10712 ret = -TARGET_EFAULT;
10713 }
10714 unlock_user(n, arg2, 0);
10715 unlock_user(v, arg3, 0);
10716 }
72eb7ea8 10717 return ret;
a790ae38 10718 case TARGET_NR_getxattr:
30297b55 10719 case TARGET_NR_lgetxattr:
a790ae38 10720 {
e3c33ec6
PM		 10721 void *p, *n, *v = 0;
10722 if (arg3) {
10723 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10724 if (!v) {
72eb7ea8 10725 return -TARGET_EFAULT;
e3c33ec6
PM		 10726 }
10727 }
a790ae38
ACH		 10728 p = lock_user_string(arg1);
10729 n = lock_user_string(arg2);
e3c33ec6 10730 if (p && n) {
30297b55
PM		 10731 if (num == TARGET_NR_getxattr) {
10732 ret = get_errno(getxattr(p, n, v, arg4));
10733 } else {
10734 ret = get_errno(lgetxattr(p, n, v, arg4));
10735 }
a790ae38
ACH		 10736 } else {
10737 ret = -TARGET_EFAULT;
10738 }
10739 unlock_user(p, arg1, 0);
10740 unlock_user(n, arg2, 0);
10741 unlock_user(v, arg3, arg4);
10742 }
72eb7ea8 10743 return ret;
30297b55
PM		 10744 case TARGET_NR_fgetxattr:
10745 {
10746 void *n, *v = 0;
10747 if (arg3) {
10748 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10749 if (!v) {
72eb7ea8 10750 return -TARGET_EFAULT;
30297b55
PM		 10751 }
10752 }
10753 n = lock_user_string(arg2);
10754 if (n) {
10755 ret = get_errno(fgetxattr(arg1, n, v, arg4));
10756 } else {
10757 ret = -TARGET_EFAULT;
10758 }
10759 unlock_user(n, arg2, 0);
10760 unlock_user(v, arg3, arg4);
10761 }
72eb7ea8 10762 return ret;
a790ae38 10763 case TARGET_NR_removexattr:
30297b55 10764 case TARGET_NR_lremovexattr:
a790ae38
ACH		 10765 {
10766 void *p, *n;
10767 p = lock_user_string(arg1);
10768 n = lock_user_string(arg2);
10769 if (p && n) {
30297b55
PM		 10770 if (num == TARGET_NR_removexattr) {
10771 ret = get_errno(removexattr(p, n));
10772 } else {
10773 ret = get_errno(lremovexattr(p, n));
10774 }
a790ae38
ACH		 10775 } else {
10776 ret = -TARGET_EFAULT;
10777 }
10778 unlock_user(p, arg1, 0);
10779 unlock_user(n, arg2, 0);
10780 }
72eb7ea8 10781 return ret;
30297b55
PM		 10782 case TARGET_NR_fremovexattr:
10783 {
10784 void *n;
10785 n = lock_user_string(arg2);
10786 if (n) {
10787 ret = get_errno(fremovexattr(arg1, n));
10788 } else {
10789 ret = -TARGET_EFAULT;
10790 }
10791 unlock_user(n, arg2, 0);
10792 }
72eb7ea8 10793 return ret;
ebc05488 10794#endif
a790ae38 10795#endif /* CONFIG_ATTR */
ebc05488 10796#ifdef TARGET_NR_set_thread_area
5cd4393b 10797 case TARGET_NR_set_thread_area:
8d18e893 10798#if defined(TARGET_MIPS)
d279279e 10799 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
72eb7ea8 10800 return 0;
ef96779b
EI		 10801#elif defined(TARGET_CRIS)
10802 if (arg1 & 0xff)
10803 ret = -TARGET_EINVAL;
10804 else {
10805 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
10806 ret = 0;
10807 }
72eb7ea8 10808 return ret;
8d18e893 10809#elif defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10810 return do_set_thread_area(cpu_env, arg1);
1ccd9374
PM		 10811#elif defined(TARGET_M68K)
10812 {
0429a971 10813 TaskState *ts = cpu->opaque;
1ccd9374 10814 ts->tp_value = arg1;
72eb7ea8 10815 return 0;
1ccd9374 10816 }
6f5b89a0 10817#else
10f45d98 10818 return -TARGET_ENOSYS;
6f5b89a0
TS		 10819#endif
10820#endif
10821#ifdef TARGET_NR_get_thread_area
5cd4393b 10822 case TARGET_NR_get_thread_area:
8d18e893 10823#if defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10824 return do_get_thread_area(cpu_env, arg1);
1ccd9374
PM		 10825#elif defined(TARGET_M68K)
10826 {
0429a971 10827 TaskState *ts = cpu->opaque;
72eb7ea8 10828 return ts->tp_value;
1ccd9374 10829 }
8d18e893 10830#else
10f45d98 10831 return -TARGET_ENOSYS;
48dc41eb 10832#endif
8d18e893 10833#endif
48dc41eb
FB		 10834#ifdef TARGET_NR_getdomainname
10835 case TARGET_NR_getdomainname:
10f45d98 10836 return -TARGET_ENOSYS;
ebc05488 10837#endif
6f5b89a0 10838
12e3340c
MF		 10839#ifdef TARGET_NR_clock_settime
10840 case TARGET_NR_clock_settime:
10841 {
10842 struct timespec ts;
10843
10844 ret = target_to_host_timespec(&ts, arg2);
10845 if (!is_error(ret)) {
10846 ret = get_errno(clock_settime(arg1, &ts));
10847 }
72eb7ea8 10848 return ret;
12e3340c
MF		 10849 }
10850#endif
b5906f95
TS		 10851#ifdef TARGET_NR_clock_gettime
10852 case TARGET_NR_clock_gettime:
10853 {
10854 struct timespec ts;
10855 ret = get_errno(clock_gettime(arg1, &ts));
10856 if (!is_error(ret)) {
b9f9908e 10857 ret = host_to_target_timespec(arg2, &ts);
b5906f95 10858 }
72eb7ea8 10859 return ret;
b5906f95
TS		 10860 }
10861#endif
10862#ifdef TARGET_NR_clock_getres
10863 case TARGET_NR_clock_getres:
10864 {
10865 struct timespec ts;
10866 ret = get_errno(clock_getres(arg1, &ts));
10867 if (!is_error(ret)) {
10868 host_to_target_timespec(arg2, &ts);
10869 }
72eb7ea8 10870 return ret;
b5906f95
TS		 10871 }
10872#endif
63d7651b
PB		 10873#ifdef TARGET_NR_clock_nanosleep
10874 case TARGET_NR_clock_nanosleep:
10875 {
10876 struct timespec ts;
10877 target_to_host_timespec(&ts, arg3);
9e518226
PM		 10878 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
10879 &ts, arg4 ? &ts : NULL));
63d7651b
PB		 10880 if (arg4)
10881 host_to_target_timespec(arg4, &ts);
8fbe8fdf
TM		 10882
10883#if defined(TARGET_PPC)
10884 /* clock_nanosleep is odd in that it returns positive errno values.
10885 * On PPC, CR0 bit 3 should be set in such a situation. */
9e518226 10886 if (ret && ret != -TARGET_ERESTARTSYS) {
8fbe8fdf
TM		 10887 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
10888 }
10889#endif
72eb7ea8 10890 return ret;
63d7651b
PB		 10891 }
10892#endif
b5906f95 10893
6f5b89a0
TS		 10894#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
10895 case TARGET_NR_set_tid_address:
72eb7ea8 10896 return get_errno(set_tid_address((int *)g2h(arg1)));
6f5b89a0
TS		 10897#endif
10898
4cae1d16 10899 case TARGET_NR_tkill:
72eb7ea8 10900 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 10901
71455574 10902 case TARGET_NR_tgkill:
72eb7ea8
RH		 10903 return get_errno(safe_tgkill((int)arg1, (int)arg2,
10904 target_to_host_signal(arg3)));
71455574 10905
4f2b1fe8
TS		 10906#ifdef TARGET_NR_set_robust_list
10907 case TARGET_NR_set_robust_list:
e9a970a8
PM		 10908 case TARGET_NR_get_robust_list:
10909 /* The ABI for supporting robust futexes has userspace pass
10910 * the kernel a pointer to a linked list which is updated by
10911 * userspace after the syscall; the list is walked by the kernel
10912 * when the thread exits. Since the linked list in QEMU guest
10913 * memory isn't a valid linked list for the host and we have
10914 * no way to reliably intercept the thread-death event, we can't
10915 * support these. Silently return ENOSYS so that guest userspace
10916 * falls back to a non-robust futex implementation (which should
10917 * be OK except in the corner case of the guest crashing while
10918 * holding a mutex that is shared with another process via
10919 * shared memory).
10920 */
10f45d98 10921 return -TARGET_ENOSYS;
4f2b1fe8
TS		 10922#endif
10923
1acae9f2 10924#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 10925 case TARGET_NR_utimensat:
10926 {
ebc996f3
RV		 10927 struct timespec *tsp, ts[2];
10928 if (!arg3) {
10929 tsp = NULL;
10930 } else {
10931 target_to_host_timespec(ts, arg3);
10932 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
10933 tsp = ts;
10934 }
9007f0ef 10935 if (!arg2)
ebc996f3 10936 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 10937 else {
579a97f7 10938 if (!(p = lock_user_string(arg2))) {
259841c1 10939 return -TARGET_EFAULT;
579a97f7 10940 }
ebc996f3 10941 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 10942 unlock_user(p, arg2, 0);
9007f0ef
TS		 10943 }
10944 }
72eb7ea8 10945 return ret;
9007f0ef 10946#endif
bd0c5661 10947 case TARGET_NR_futex:
72eb7ea8 10948 return do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
dbfe4c36 10949#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 10950 case TARGET_NR_inotify_init:
10951 ret = get_errno(sys_inotify_init());
b929f7e5
PMD		 10952 if (ret >= 0) {
10953 fd_trans_register(ret, &target_inotify_trans);
10954 }
72eb7ea8 10955 return ret;
39b59763 10956#endif
a1606b0b 10957#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 10958#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
10959 case TARGET_NR_inotify_init1:
fea243e9
LD		 10960 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
10961 fcntl_flags_tbl)));
b929f7e5
PMD		 10962 if (ret >= 0) {
10963 fd_trans_register(ret, &target_inotify_trans);
10964 }
72eb7ea8 10965 return ret;
c05c7a73 10966#endif
a1606b0b 10967#endif
dbfe4c36 10968#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 10969 case TARGET_NR_inotify_add_watch:
10970 p = lock_user_string(arg2);
10971 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
10972 unlock_user(p, arg2, 0);
72eb7ea8 10973 return ret;
39b59763 10974#endif
dbfe4c36 10975#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763 10976 case TARGET_NR_inotify_rm_watch:
72eb7ea8 10977 return get_errno(sys_inotify_rm_watch(arg1, arg2));
39b59763 10978#endif
9007f0ef 10979
8ec9cf89 10980#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 10981 case TARGET_NR_mq_open:
10982 {
c7536ab6 10983 struct mq_attr posix_mq_attr;
26400775 10984 struct mq_attr *pposix_mq_attr;
c7536ab6 10985 int host_flags;
24e1003a 10986
c7536ab6 10987 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
26400775
LD		 10988 pposix_mq_attr = NULL;
10989 if (arg4) {
10990 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
2852aafd 10991 return -TARGET_EFAULT;
26400775
LD		 10992 }
10993 pposix_mq_attr = &posix_mq_attr;
c7536ab6 10994 }
24e1003a 10995 p = lock_user_string(arg1 - 1);
c7536ab6 10996 if (!p) {
2852aafd 10997 return -TARGET_EFAULT;
b6ce1f6b 10998 }
26400775 10999 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
24e1003a
AJ		 11000 unlock_user (p, arg1, 0);
11001 }
72eb7ea8 11002 return ret;
24e1003a
AJ		 11003
11004 case TARGET_NR_mq_unlink:
11005 p = lock_user_string(arg1 - 1);
3211215e 11006 if (!p) {
72eb7ea8 11007 return -TARGET_EFAULT;
3211215e 11008 }
24e1003a
AJ		 11009 ret = get_errno(mq_unlink(p));
11010 unlock_user (p, arg1, 0);
72eb7ea8 11011 return ret;
24e1003a
AJ		 11012
11013 case TARGET_NR_mq_timedsend:
11014 {
11015 struct timespec ts;
11016
11017 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11018 if (arg5 != 0) {
11019 target_to_host_timespec(&ts, arg5);
d40ecd66 11020 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
24e1003a 11021 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11022 } else {
11023 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
24e1003a 11024 }
24e1003a
AJ		 11025 unlock_user (p, arg2, arg3);
11026 }
72eb7ea8 11027 return ret;
24e1003a
AJ		 11028
11029 case TARGET_NR_mq_timedreceive:
11030 {
11031 struct timespec ts;
11032 unsigned int prio;
11033
11034 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11035 if (arg5 != 0) {
11036 target_to_host_timespec(&ts, arg5);
d40ecd66
PM		 11037 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11038 &prio, &ts));
24e1003a 11039 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11040 } else {
11041 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11042 &prio, NULL));
24e1003a 11043 }
24e1003a
AJ		 11044 unlock_user (p, arg2, arg3);
11045 if (arg4 != 0)
11046 put_user_u32(prio, arg4);
11047 }
72eb7ea8 11048 return ret;
24e1003a
AJ		 11049
11050 /* Not implemented for now... */
11051/* case TARGET_NR_mq_notify: */
11052/* break; */
11053
11054 case TARGET_NR_mq_getsetattr:
11055 {
11056 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
11057 ret = 0;
24e1003a
AJ		 11058 if (arg2 != 0) {
11059 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
a23ea409
MF		 11060 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
11061 &posix_mq_attr_out));
11062 } else if (arg3 != 0) {
11063 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
11064 }
11065 if (ret == 0 && arg3 != 0) {
11066 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
24e1003a 11067 }
24e1003a 11068 }
72eb7ea8 11069 return ret;
24e1003a
AJ		 11070#endif
11071
3ce34dfb
VS		 11072#ifdef CONFIG_SPLICE
11073#ifdef TARGET_NR_tee
11074 case TARGET_NR_tee:
11075 {
11076 ret = get_errno(tee(arg1,arg2,arg3,arg4));
11077 }
72eb7ea8 11078 return ret;
3ce34dfb
VS		 11079#endif
11080#ifdef TARGET_NR_splice
11081 case TARGET_NR_splice:
11082 {
11083 loff_t loff_in, loff_out;
11084 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 11085 if (arg2) {
11086 if (get_user_u64(loff_in, arg2)) {
2852aafd 11087 return -TARGET_EFAULT;
17644b36 11088 }
3ce34dfb
VS		 11089 ploff_in = &loff_in;
11090 }
17644b36
AS		 11091 if (arg4) {
11092 if (get_user_u64(loff_out, arg4)) {
2852aafd 11093 return -TARGET_EFAULT;
17644b36 11094 }
3ce34dfb
VS		 11095 ploff_out = &loff_out;
11096 }
11097 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 11098 if (arg2) {
11099 if (put_user_u64(loff_in, arg2)) {
2852aafd 11100 return -TARGET_EFAULT;
17644b36
AS		 11101 }
11102 }
11103 if (arg4) {
11104 if (put_user_u64(loff_out, arg4)) {
2852aafd 11105 return -TARGET_EFAULT;
17644b36
AS		 11106 }
11107 }
3ce34dfb 11108 }
72eb7ea8 11109 return ret;
3ce34dfb
VS		 11110#endif
11111#ifdef TARGET_NR_vmsplice
11112 case TARGET_NR_vmsplice:
11113 {
f287b2c2
RH		 11114 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
11115 if (vec != NULL) {
11116 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
11117 unlock_iovec(vec, arg2, arg3, 0);
11118 } else {
11119 ret = -host_to_target_errno(errno);
11120 }
3ce34dfb 11121 }
72eb7ea8 11122 return ret;
3ce34dfb
VS		 11123#endif
11124#endif /* CONFIG_SPLICE */
c2882b96
RV		 11125#ifdef CONFIG_EVENTFD
11126#if defined(TARGET_NR_eventfd)
11127 case TARGET_NR_eventfd:
11128 ret = get_errno(eventfd(arg1, 0));
b929f7e5
PMD		 11129 if (ret >= 0) {
11130 fd_trans_register(ret, &target_eventfd_trans);
11131 }
72eb7ea8 11132 return ret;
c2882b96
RV		 11133#endif
11134#if defined(TARGET_NR_eventfd2)
11135 case TARGET_NR_eventfd2:
5947c697
PJ		 11136 {
11137 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
11138 if (arg2 & TARGET_O_NONBLOCK) {
11139 host_flags |= O_NONBLOCK;
11140 }
11141 if (arg2 & TARGET_O_CLOEXEC) {
11142 host_flags |= O_CLOEXEC;
11143 }
11144 ret = get_errno(eventfd(arg1, host_flags));
b929f7e5
PMD		 11145 if (ret >= 0) {
11146 fd_trans_register(ret, &target_eventfd_trans);
11147 }
72eb7ea8 11148 return ret;
5947c697 11149 }
c2882b96
RV		 11150#endif
11151#endif /* CONFIG_EVENTFD */
d0927938
UH		 11152#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
11153 case TARGET_NR_fallocate:
20249ae1
AG		 11154#if TARGET_ABI_BITS == 32
11155 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
11156 target_offset64(arg5, arg6)));
11157#else
d0927938 11158 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 11159#endif
72eb7ea8 11160 return ret;
c727f47d
PM		 11161#endif
11162#if defined(CONFIG_SYNC_FILE_RANGE)
11163#if defined(TARGET_NR_sync_file_range)
11164 case TARGET_NR_sync_file_range:
11165#if TARGET_ABI_BITS == 32
bfcedc57
RV		 11166#if defined(TARGET_MIPS)
11167 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11168 target_offset64(arg5, arg6), arg7));
11169#else
c727f47d
PM		 11170 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
11171 target_offset64(arg4, arg5), arg6));
bfcedc57 11172#endif /* !TARGET_MIPS */
c727f47d
PM		 11173#else
11174 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
11175#endif
72eb7ea8 11176 return ret;
c727f47d
PM		 11177#endif
11178#if defined(TARGET_NR_sync_file_range2)
11179 case TARGET_NR_sync_file_range2:
11180 /* This is like sync_file_range but the arguments are reordered */
11181#if TARGET_ABI_BITS == 32
11182 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11183 target_offset64(arg5, arg6), arg2));
11184#else
11185 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
11186#endif
72eb7ea8 11187 return ret;
c727f47d 11188#endif
3b6edd16 11189#endif
e36800c9
LV		 11190#if defined(TARGET_NR_signalfd4)
11191 case TARGET_NR_signalfd4:
72eb7ea8 11192 return do_signalfd4(arg1, arg2, arg4);
e36800c9
LV		 11193#endif
11194#if defined(TARGET_NR_signalfd)
11195 case TARGET_NR_signalfd:
72eb7ea8 11196 return do_signalfd4(arg1, arg2, 0);
e36800c9 11197#endif
3b6edd16
PM		 11198#if defined(CONFIG_EPOLL)
11199#if defined(TARGET_NR_epoll_create)
11200 case TARGET_NR_epoll_create:
72eb7ea8 11201 return get_errno(epoll_create(arg1));
3b6edd16
PM		 11202#endif
11203#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
11204 case TARGET_NR_epoll_create1:
72eb7ea8 11205 return get_errno(epoll_create1(arg1));
3b6edd16
PM		 11206#endif
11207#if defined(TARGET_NR_epoll_ctl)
11208 case TARGET_NR_epoll_ctl:
11209 {
11210 struct epoll_event ep;
11211 struct epoll_event *epp = 0;
11212 if (arg4) {
11213 struct target_epoll_event *target_ep;
11214 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
2852aafd 11215 return -TARGET_EFAULT;
3b6edd16
PM		 11216 }
11217 ep.events = tswap32(target_ep->events);
11218 /* The epoll_data_t union is just opaque data to the kernel,
11219 * so we transfer all 64 bits across and need not worry what
11220 * actual data type it is.
11221 */
11222 ep.data.u64 = tswap64(target_ep->data.u64);
11223 unlock_user_struct(target_ep, arg4, 0);
11224 epp = &ep;
11225 }
72eb7ea8 11226 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
3b6edd16
PM		 11227 }
11228#endif
11229
227f0214 11230#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11231#if defined(TARGET_NR_epoll_wait)
11232 case TARGET_NR_epoll_wait:
11233#endif
227f0214 11234#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11235 case TARGET_NR_epoll_pwait:
11236#endif
11237 {
11238 struct target_epoll_event *target_ep;
11239 struct epoll_event *ep;
11240 int epfd = arg1;
11241 int maxevents = arg3;
11242 int timeout = arg4;
11243
2ba7fae3 11244 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
72eb7ea8 11245 return -TARGET_EINVAL;
2ba7fae3
PM		 11246 }
11247
3b6edd16
PM		 11248 target_ep = lock_user(VERIFY_WRITE, arg2,
11249 maxevents * sizeof(struct target_epoll_event), 1);
11250 if (!target_ep) {
2852aafd 11251 return -TARGET_EFAULT;
3b6edd16
PM		 11252 }
11253
04c95f4d
PM		 11254 ep = g_try_new(struct epoll_event, maxevents);
11255 if (!ep) {
11256 unlock_user(target_ep, arg2, 0);
72eb7ea8 11257 return -TARGET_ENOMEM;
04c95f4d 11258 }
3b6edd16
PM		 11259
11260 switch (num) {
227f0214 11261#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11262 case TARGET_NR_epoll_pwait:
11263 {
11264 target_sigset_t *target_set;
11265 sigset_t _set, *set = &_set;
11266
11267 if (arg5) {
c815701e
PM		 11268 if (arg6 != sizeof(target_sigset_t)) {
11269 ret = -TARGET_EINVAL;
11270 break;
11271 }
11272
3b6edd16
PM		 11273 target_set = lock_user(VERIFY_READ, arg5,
11274 sizeof(target_sigset_t), 1);
11275 if (!target_set) {
04c95f4d
PM		 11276 ret = -TARGET_EFAULT;
11277 break;
3b6edd16
PM		 11278 }
11279 target_to_host_sigset(set, target_set);
11280 unlock_user(target_set, arg5, 0);
11281 } else {
11282 set = NULL;
11283 }
11284
227f0214
PM		 11285 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11286 set, SIGSET_T_SIZE));
3b6edd16
PM		 11287 break;
11288 }
11289#endif
11290#if defined(TARGET_NR_epoll_wait)
11291 case TARGET_NR_epoll_wait:
227f0214
PM		 11292 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11293 NULL, 0));
3b6edd16
PM		 11294 break;
11295#endif
11296 default:
11297 ret = -TARGET_ENOSYS;
11298 }
11299 if (!is_error(ret)) {
11300 int i;
11301 for (i = 0; i < ret; i++) {
11302 target_ep[i].events = tswap32(ep[i].events);
11303 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
11304 }
04c95f4d
PM		 11305 unlock_user(target_ep, arg2,
11306 ret * sizeof(struct target_epoll_event));
11307 } else {
11308 unlock_user(target_ep, arg2, 0);
3b6edd16 11309 }
04c95f4d 11310 g_free(ep);
72eb7ea8 11311 return ret;
3b6edd16
PM		 11312 }
11313#endif
163a05a8
PM		 11314#endif
11315#ifdef TARGET_NR_prlimit64
11316 case TARGET_NR_prlimit64:
11317 {
11318 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
11319 struct target_rlimit64 *target_rnew, *target_rold;
11320 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 11321 int resource = target_to_host_resource(arg2);
163a05a8
PM		 11322 if (arg3) {
11323 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
2852aafd 11324 return -TARGET_EFAULT;
163a05a8
PM		 11325 }
11326 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
11327 rnew.rlim_max = tswap64(target_rnew->rlim_max);
11328 unlock_user_struct(target_rnew, arg3, 0);
11329 rnewp = &rnew;
11330 }
11331
95018018 11332 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 11333 if (!is_error(ret) && arg4) {
11334 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
2852aafd 11335 return -TARGET_EFAULT;
163a05a8
PM		 11336 }
11337 target_rold->rlim_cur = tswap64(rold.rlim_cur);
11338 target_rold->rlim_max = tswap64(rold.rlim_max);
11339 unlock_user_struct(target_rold, arg4, 1);
11340 }
72eb7ea8 11341 return ret;
163a05a8 11342 }
3d21d29c
RH		 11343#endif
11344#ifdef TARGET_NR_gethostname
11345 case TARGET_NR_gethostname:
11346 {
11347 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
11348 if (name) {
11349 ret = get_errno(gethostname(name, arg2));
11350 unlock_user(name, arg1, arg2);
11351 } else {
11352 ret = -TARGET_EFAULT;
11353 }
72eb7ea8 11354 return ret;
3d21d29c 11355 }
89aaf1a6
RV		 11356#endif
11357#ifdef TARGET_NR_atomic_cmpxchg_32
11358 case TARGET_NR_atomic_cmpxchg_32:
11359 {
11360 /* should use start_exclusive from main.c */
11361 abi_ulong mem_value;
11362 if (get_user_u32(mem_value, arg6)) {
11363 target_siginfo_t info;
11364 info.si_signo = SIGSEGV;
11365 info.si_errno = 0;
11366 info.si_code = TARGET_SEGV_MAPERR;
11367 info._sifields._sigfault._addr = arg6;
9d2803f7
PM		 11368 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11369 QEMU_SI_FAULT, &info);
89aaf1a6
RV		 11370 ret = 0xdeadbeef;
11371
11372 }
11373 if (mem_value == arg2)
11374 put_user_u32(arg1, arg6);
72eb7ea8 11375 return mem_value;
89aaf1a6
RV		 11376 }
11377#endif
11378#ifdef TARGET_NR_atomic_barrier
11379 case TARGET_NR_atomic_barrier:
72eb7ea8
RH		 11380 /* Like the kernel implementation and the
11381 qemu arm barrier, no-op this? */
11382 return 0;
d0927938 11383#endif
f4f1e10a
ECL		 11384
11385#ifdef TARGET_NR_timer_create
11386 case TARGET_NR_timer_create:
11387 {
11388 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
11389
11390 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 11391
11392 int clkid = arg1;
11393 int timer_index = next_free_host_timer();
11394
11395 if (timer_index < 0) {
11396 ret = -TARGET_EAGAIN;
11397 } else {
11398 timer_t *phtimer = g_posix_timers + timer_index;
11399
11400 if (arg2) {
f4f1e10a 11401 phost_sevp = &host_sevp;
c065976f
PM		 11402 ret = target_to_host_sigevent(phost_sevp, arg2);
11403 if (ret != 0) {
72eb7ea8 11404 return ret;
c065976f 11405 }
f4f1e10a
ECL		 11406 }
11407
11408 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
11409 if (ret) {
11410 phtimer = NULL;
11411 } else {
aecc8861 11412 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
2852aafd 11413 return -TARGET_EFAULT;
f4f1e10a 11414 }
f4f1e10a
ECL		 11415 }
11416 }
72eb7ea8 11417 return ret;
f4f1e10a
ECL		 11418 }
11419#endif
11420
11421#ifdef TARGET_NR_timer_settime
11422 case TARGET_NR_timer_settime:
11423 {
11424 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
11425 * struct itimerspec * old_value */
aecc8861 11426 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11427
aecc8861
AG		 11428 if (timerid < 0) {
11429 ret = timerid;
11430 } else if (arg3 == 0) {
f4f1e10a
ECL		 11431 ret = -TARGET_EINVAL;
11432 } else {
e52a99f7 11433 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11434 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
11435
40c80b5e 11436 if (target_to_host_itimerspec(&hspec_new, arg3)) {
2852aafd 11437 return -TARGET_EFAULT;
40c80b5e 11438 }
f4f1e10a
ECL		 11439 ret = get_errno(
11440 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
40c80b5e 11441 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
2852aafd 11442 return -TARGET_EFAULT;
40c80b5e 11443 }
f4f1e10a 11444 }
72eb7ea8 11445 return ret;
f4f1e10a
ECL		 11446 }
11447#endif
11448
11449#ifdef TARGET_NR_timer_gettime
11450 case TARGET_NR_timer_gettime:
11451 {
11452 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 11453 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11454
aecc8861
AG		 11455 if (timerid < 0) {
11456 ret = timerid;
11457 } else if (!arg2) {
11458 ret = -TARGET_EFAULT;
f4f1e10a 11459 } else {
e52a99f7 11460 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11461 struct itimerspec hspec;
11462 ret = get_errno(timer_gettime(htimer, &hspec));
11463
11464 if (host_to_target_itimerspec(arg2, &hspec)) {
11465 ret = -TARGET_EFAULT;
11466 }
11467 }
72eb7ea8 11468 return ret;
f4f1e10a
ECL		 11469 }
11470#endif
11471
11472#ifdef TARGET_NR_timer_getoverrun
11473 case TARGET_NR_timer_getoverrun:
11474 {
11475 /* args: timer_t timerid */
aecc8861 11476 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11477
aecc8861
AG		 11478 if (timerid < 0) {
11479 ret = timerid;
f4f1e10a 11480 } else {
e52a99f7 11481 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11482 ret = get_errno(timer_getoverrun(htimer));
11483 }
e36800c9 11484 fd_trans_unregister(ret);
72eb7ea8 11485 return ret;
f4f1e10a
ECL		 11486 }
11487#endif
11488
11489#ifdef TARGET_NR_timer_delete
11490 case TARGET_NR_timer_delete:
11491 {
11492 /* args: timer_t timerid */
aecc8861 11493 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11494
aecc8861
AG		 11495 if (timerid < 0) {
11496 ret = timerid;
f4f1e10a 11497 } else {
e52a99f7 11498 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 11499 ret = get_errno(timer_delete(htimer));
e52a99f7 11500 g_posix_timers[timerid] = 0;
f4f1e10a 11501 }
72eb7ea8 11502 return ret;
f4f1e10a
ECL		 11503 }
11504#endif
11505
51834341
RV		 11506#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11507 case TARGET_NR_timerfd_create:
72eb7ea8
RH		 11508 return get_errno(timerfd_create(arg1,
11509 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
51834341
RV		 11510#endif
11511
11512#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11513 case TARGET_NR_timerfd_gettime:
11514 {
11515 struct itimerspec its_curr;
11516
11517 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11518
11519 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
2852aafd 11520 return -TARGET_EFAULT;
51834341
RV		 11521 }
11522 }
72eb7ea8 11523 return ret;
51834341
RV		 11524#endif
11525
11526#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11527 case TARGET_NR_timerfd_settime:
11528 {
11529 struct itimerspec its_new, its_old, *p_new;
11530
11531 if (arg3) {
11532 if (target_to_host_itimerspec(&its_new, arg3)) {
2852aafd 11533 return -TARGET_EFAULT;
51834341
RV		 11534 }
11535 p_new = &its_new;
11536 } else {
11537 p_new = NULL;
11538 }
11539
11540 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11541
11542 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
2852aafd 11543 return -TARGET_EFAULT;
51834341
RV		 11544 }
11545 }
72eb7ea8 11546 return ret;
51834341
RV		 11547#endif
11548
ab31cda3
PB		 11549#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11550 case TARGET_NR_ioprio_get:
72eb7ea8 11551 return get_errno(ioprio_get(arg1, arg2));
ab31cda3
PB		 11552#endif
11553
11554#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11555 case TARGET_NR_ioprio_set:
72eb7ea8 11556 return get_errno(ioprio_set(arg1, arg2, arg3));
ab31cda3
PB		 11557#endif
11558
9af5c906
RV		 11559#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11560 case TARGET_NR_setns:
72eb7ea8 11561 return get_errno(setns(arg1, arg2));
9af5c906
RV		 11562#endif
11563#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11564 case TARGET_NR_unshare:
72eb7ea8 11565 return get_errno(unshare(arg1));
9af5c906 11566#endif
2f14788c
LV		 11567#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
11568 case TARGET_NR_kcmp:
72eb7ea8 11569 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
2f14788c 11570#endif
fa97e38e
RH		 11571#ifdef TARGET_NR_swapcontext
11572 case TARGET_NR_swapcontext:
11573 /* PowerPC specific. */
72eb7ea8 11574 return do_swapcontext(cpu_env, arg1, arg2, arg3);
fa97e38e 11575#endif
9af5c906 11576
31e31b8a 11577 default:
122f9c83 11578 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
72eb7ea8 11579 return -TARGET_ENOSYS;
31e31b8a 11580 }
31e31b8a
FB		 11581 return ret;
11582}
dc1ce18b
RH		 11583
11584abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
11585 abi_long arg2, abi_long arg3, abi_long arg4,
11586 abi_long arg5, abi_long arg6, abi_long arg7,
11587 abi_long arg8)
11588{
11589 CPUState *cpu = ENV_GET_CPU(cpu_env);
11590 abi_long ret;
11591
11592#ifdef DEBUG_ERESTARTSYS
11593 /* Debug-only code for exercising the syscall-restart code paths
11594 * in the per-architecture cpu main loops: restart every syscall
11595 * the guest makes once before letting it through.
11596 */
11597 {
11598 static bool flag;
11599 flag = !flag;
11600 if (flag) {
11601 return -TARGET_ERESTARTSYS;
11602 }
11603 }
11604#endif
11605
11606 trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
11607 arg5, arg6, arg7, arg8);
11608
11609 if (unlikely(do_strace)) {
11610 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
11611 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11612 arg5, arg6, arg7, arg8);
11613 print_syscall_ret(num, ret);
11614 } else {
11615 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11616 arg5, arg6, arg7, arg8);
11617 }
11618
11619 trace_guest_user_syscall_ret(cpu, num, ret);
11620 return ret;
11621}
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