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linux-user: Fix error conversion in 64-bit fadvise syscall
[qemu.git] / linux-user / syscall.c
CommitLineData
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
FB		 34#include <sys/resource.h>
35#include <sys/mman.h>
36#include <sys/swap.h>
e0eb210e 37#include <linux/capability.h>
31e31b8a 38#include <sched.h>
60e99246
AJ		 39#ifdef __ia64__
40int __clone2(int (*fn)(void *), void *child_stack_base,
41 size_t stack_size, int flags, void *arg, ...);
42#endif
31e31b8a 43#include <sys/socket.h>
607175e0 44#include <sys/un.h>
31e31b8a 45#include <sys/uio.h>
9de5e440 46#include <sys/poll.h>
32f36bce 47#include <sys/times.h>
8853f86e 48#include <sys/shm.h>
fa294816 49#include <sys/sem.h>
56c8f68f 50#include <sys/statfs.h>
ebc05488 51#include <utime.h>
a5448a7d 52#include <sys/sysinfo.h>
e36800c9 53#include <sys/signalfd.h>
72f03900 54//#include <sys/user.h>
8853f86e 55#include <netinet/ip.h>
7854b056 56#include <netinet/tcp.h>
86fcd946 57#include <linux/wireless.h>
920394db 58#include <linux/icmp.h>
5a61cb60 59#include "qemu-common.h"
d80a1905
RV		 60#ifdef CONFIG_TIMERFD
61#include <sys/timerfd.h>
62#endif
9788c9ca 63#ifdef TARGET_GPROF
6d946cda
AJ		 64#include <sys/gmon.h>
65#endif
c2882b96
RV		 66#ifdef CONFIG_EVENTFD
67#include <sys/eventfd.h>
68#endif
3b6edd16
PM		 69#ifdef CONFIG_EPOLL
70#include <sys/epoll.h>
71#endif
a790ae38 72#ifdef CONFIG_ATTR
1de7afc9 73#include "qemu/xattr.h"
a790ae38 74#endif
a8fd1aba
PM		 75#ifdef CONFIG_SENDFILE
76#include <sys/sendfile.h>
77#endif
31e31b8a
FB		 78
79#define termios host_termios
80#define winsize host_winsize
81#define termio host_termio
04369ff2
FB		 82#define sgttyb host_sgttyb /* same as target */
83#define tchars host_tchars /* same as target */
84#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 85
86#include <linux/termios.h>
87#include <linux/unistd.h>
31e31b8a
FB		 88#include <linux/cdrom.h>
89#include <linux/hdreg.h>
90#include <linux/soundcard.h>
19b84f3c 91#include <linux/kd.h>
8fbd6b52 92#include <linux/mtio.h>
350d1779 93#include <linux/fs.h>
dace20dc 94#if defined(CONFIG_FIEMAP)
285da2b9 95#include <linux/fiemap.h>
dace20dc 96#endif
f7680a55
UH		 97#include <linux/fb.h>
98#include <linux/vt.h>
56e904ec 99#include <linux/dm-ioctl.h>
c07ecc68 100#include <linux/reboot.h>
7ff7b666 101#include <linux/route.h>
f57d4192 102#include <linux/filter.h>
fff8c539 103#include <linux/blkpg.h>
6c5b5645 104#include <linux/netlink.h>
575b22b1 105#ifdef CONFIG_RTNETLINK
6c5b5645 106#include <linux/rtnetlink.h>
575b22b1 107#endif
5ce9bb59 108#include <linux/audit.h>
d7e4036e 109#include "linux_loop.h"
18cb0088 110#include "uname.h"
31e31b8a 111
3ef693a0 112#include "qemu.h"
31e31b8a 113
d865bab5
PB		 114#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
115 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
30813cea 116
72f03900 117//#define DEBUG
71a8f7fe
TB		 118/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
119 * once. This exercises the codepaths for restart.
120 */
121//#define DEBUG_ERESTARTSYS
31e31b8a 122
1a9353d2 123//#include <linux/msdos_fs.h>
6556a833
AJ		 124#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
125#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 126
b28a1f33
PM		 127/* This is the size of the host kernel's sigset_t, needed where we make
128 * direct system calls that take a sigset_t pointer and a size.
129 */
130#define SIGSET_T_SIZE (_NSIG / 8)
70a194b9 131
70a194b9
FB		 132#undef _syscall0
133#undef _syscall1
134#undef _syscall2
135#undef _syscall3
136#undef _syscall4
137#undef _syscall5
83fcb515 138#undef _syscall6
70a194b9 139
83fcb515 140#define _syscall0(type,name) \
8fcd3692 141static type name (void) \
83fcb515
FB		 142{ \
143 return syscall(__NR_##name); \
144}
70a194b9 145
83fcb515 146#define _syscall1(type,name,type1,arg1) \
8fcd3692 147static type name (type1 arg1) \
83fcb515
FB		 148{ \
149 return syscall(__NR_##name, arg1); \
70a194b9
FB		 150}
151
83fcb515 152#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 153static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 154{ \
155 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 156}
157
83fcb515 158#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 159static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 160{ \
161 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 162}
163
83fcb515 164#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 165static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 166{ \
167 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 168}
169
83fcb515
FB		 170#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
171 type5,arg5) \
8fcd3692 172static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 173{ \
174 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 175}
176
83fcb515
FB		 177
178#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
179 type5,arg5,type6,arg6) \
8fcd3692
BS		 180static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
181 type6 arg6) \
83fcb515
FB		 182{ \
183 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 184}
83fcb515 185
70a194b9 186
31e31b8a 187#define __NR_sys_uname __NR_uname
72f03900 188#define __NR_sys_getcwd1 __NR_getcwd
72f03900 189#define __NR_sys_getdents __NR_getdents
dab2ed99 190#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 191#define __NR_sys_getpriority __NR_getpriority
66fb9763 192#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
7494b0f9 193#define __NR_sys_syslog __NR_syslog
bd0c5661 194#define __NR_sys_futex __NR_futex
39b59763
AJ		 195#define __NR_sys_inotify_init __NR_inotify_init
196#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
197#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
31e31b8a 198
42a39fbe
AG		 199#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
200 defined(__s390x__)
9af9eaaa
FB		 201#define __NR__llseek __NR_lseek
202#endif
203
a29e5ba2
JH		 204/* Newer kernel ports have llseek() instead of _llseek() */
205#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
206#define TARGET_NR__llseek TARGET_NR_llseek
207#endif
208
72f03900 209#ifdef __NR_gettid
31e31b8a 210_syscall0(int, gettid)
72f03900 211#else
0da46a6e
TS		 212/* This is a replacement for the host gettid() and must return a host
213 errno. */
72f03900
FB		 214static int gettid(void) {
215 return -ENOSYS;
216}
217#endif
704eff6c 218#if defined(TARGET_NR_getdents) && defined(__NR_getdents)
3b3f24ad 219_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236
PM		 220#endif
221#if !defined(__NR_getdents) || \
222 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 223_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
224#endif
d35b261c 225#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 226_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
227 loff_t *, res, uint, wh);
228#endif
229_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
230_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 231#ifdef __NR_exit_group
232_syscall1(int,exit_group,int,error_code)
233#endif
234#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
235_syscall1(int,set_tid_address,int *,tidptr)
236#endif
3b3f24ad
AJ		 237#if defined(TARGET_NR_futex) && defined(__NR_futex)
238_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
239 const struct timespec *,timeout,int *,uaddr2,int,val3)
240#endif
737de1d1
MF		 241#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
242_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
243 unsigned long *, user_mask_ptr);
244#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
245_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
246 unsigned long *, user_mask_ptr);
0f6b4d21
AG		 247_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
248 void *, arg);
e0eb210e
PM		 249_syscall2(int, capget, struct __user_cap_header_struct *, header,
250 struct __user_cap_data_struct *, data);
251_syscall2(int, capset, struct __user_cap_header_struct *, header,
252 struct __user_cap_data_struct *, data);
ab31cda3
PB		 253#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
254_syscall2(int, ioprio_get, int, which, int, who)
255#endif
256#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
257_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
258#endif
f894efd1
LV		 259#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
260_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
261#endif
3b3f24ad
AJ		 262
263static bitmask_transtbl fcntl_flags_tbl[] = {
264 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
265 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
266 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
267 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
268 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
269 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
270 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
271 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 272 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 273 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
274 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
275 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
276 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 277#if defined(O_DIRECT)
278 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 279#endif
280#if defined(O_NOATIME)
281 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
282#endif
283#if defined(O_CLOEXEC)
284 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
285#endif
286#if defined(O_PATH)
287 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
288#endif
289 /* Don't terminate the list prematurely on 64-bit host+guest. */
290#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
291 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 292#endif
293 { 0, 0, 0, 0 }
294};
295
5d4d3665 296typedef abi_long (*TargetFdDataFunc)(void *, size_t);
7b36f782 297typedef abi_long (*TargetFdAddrFunc)(void *, abi_ulong, socklen_t);
e36800c9 298typedef struct TargetFdTrans {
5d4d3665
LV		 299 TargetFdDataFunc host_to_target_data;
300 TargetFdDataFunc target_to_host_data;
7b36f782 301 TargetFdAddrFunc target_to_host_addr;
e36800c9
LV		 302} TargetFdTrans;
303
304static TargetFdTrans **target_fd_trans;
305
306static unsigned int target_fd_max;
307
6c5b5645
LV		 308static TargetFdDataFunc fd_trans_target_to_host_data(int fd)
309{
310 if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
311 return target_fd_trans[fd]->target_to_host_data;
312 }
313 return NULL;
314}
315
5d4d3665 316static TargetFdDataFunc fd_trans_host_to_target_data(int fd)
e36800c9 317{
861d72cd 318 if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
5d4d3665 319 return target_fd_trans[fd]->host_to_target_data;
e36800c9
LV		 320 }
321 return NULL;
322}
323
7b36f782
LV		 324static TargetFdAddrFunc fd_trans_target_to_host_addr(int fd)
325{
861d72cd 326 if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
7b36f782
LV		 327 return target_fd_trans[fd]->target_to_host_addr;
328 }
329 return NULL;
330}
331
e36800c9
LV		 332static void fd_trans_register(int fd, TargetFdTrans *trans)
333{
334 unsigned int oldmax;
335
336 if (fd >= target_fd_max) {
337 oldmax = target_fd_max;
338 target_fd_max = ((fd >> 6) + 1) << 6; /* by slice of 64 entries */
5089c7ce
LV		 339 target_fd_trans = g_renew(TargetFdTrans *,
340 target_fd_trans, target_fd_max);
e36800c9
LV		 341 memset((void *)(target_fd_trans + oldmax), 0,
342 (target_fd_max - oldmax) * sizeof(TargetFdTrans *));
343 }
344 target_fd_trans[fd] = trans;
345}
346
347static void fd_trans_unregister(int fd)
348{
349 if (fd >= 0 && fd < target_fd_max) {
350 target_fd_trans[fd] = NULL;
351 }
352}
353
354static void fd_trans_dup(int oldfd, int newfd)
355{
356 fd_trans_unregister(newfd);
357 if (oldfd < target_fd_max && target_fd_trans[oldfd]) {
358 fd_trans_register(newfd, target_fd_trans[oldfd]);
359 }
360}
361
3b3f24ad
AJ		 362static int sys_getcwd1(char *buf, size_t size)
363{
364 if (getcwd(buf, size) == NULL) {
365 /* getcwd() sets errno */
366 return (-1);
367 }
aaf4ad39 368 return strlen(buf)+1;
3b3f24ad
AJ		 369}
370
1acae9f2 371#ifdef TARGET_NR_utimensat
ebc996f3
RV		 372#ifdef CONFIG_UTIMENSAT
373static int sys_utimensat(int dirfd, const char *pathname,
374 const struct timespec times[2], int flags)
375{
376 if (pathname == NULL)
377 return futimens(dirfd, times);
378 else
379 return utimensat(dirfd, pathname, times, flags);
380}
1acae9f2
PM		 381#elif defined(__NR_utimensat)
382#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 383_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
384 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 385#else
386static int sys_utimensat(int dirfd, const char *pathname,
387 const struct timespec times[2], int flags)
388{
389 errno = ENOSYS;
390 return -1;
391}
9007f0ef 392#endif
1acae9f2 393#endif /* TARGET_NR_utimensat */
3b3f24ad
AJ		 394
395#ifdef CONFIG_INOTIFY
8690e420 396#include <sys/inotify.h>
3b3f24ad 397
39b59763 398#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 399static int sys_inotify_init(void)
400{
401 return (inotify_init());
402}
39b59763
AJ		 403#endif
404#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 405static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
406{
407 return (inotify_add_watch(fd, pathname, mask));
408}
39b59763
AJ		 409#endif
410#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 411static int sys_inotify_rm_watch(int fd, int32_t wd)
412{
8690e420 413 return (inotify_rm_watch(fd, wd));
3b3f24ad 414}
bd0c5661 415#endif
c05c7a73
RV		 416#ifdef CONFIG_INOTIFY1
417#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
418static int sys_inotify_init1(int flags)
419{
420 return (inotify_init1(flags));
421}
422#endif
423#endif
3b3f24ad
AJ		 424#else
425/* Userspace can usually survive runtime without inotify */
426#undef TARGET_NR_inotify_init
c05c7a73 427#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 428#undef TARGET_NR_inotify_add_watch
429#undef TARGET_NR_inotify_rm_watch
430#endif /* CONFIG_INOTIFY */
431
d8035d4c
MF		 432#if defined(TARGET_NR_ppoll)
433#ifndef __NR_ppoll
434# define __NR_ppoll -1
435#endif
436#define __NR_sys_ppoll __NR_ppoll
437_syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
34d60862 438 struct timespec *, timeout, const sigset_t *, sigmask,
d8035d4c
MF		 439 size_t, sigsetsize)
440#endif
66fb9763 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
48e515d4
RV		 478static inline int regpairs_aligned(void *cpu_env) {
479 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
480}
481#elif defined(TARGET_MIPS)
482static inline int regpairs_aligned(void *cpu_env) { return 1; }
4a1def4e
AG		 483#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
484/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
485 * of registers which translates to the same as ARM/MIPS, because we start with
486 * r3 as arg1 */
487static inline int regpairs_aligned(void *cpu_env) { return 1; }
48e515d4
RV		 488#else
489static inline int regpairs_aligned(void *cpu_env) { return 0; }
490#endif
491
b92c47c1
TS		 492#define ERRNO_TABLE_SIZE 1200
493
494/* target_to_host_errno_table[] is initialized from
495 * host_to_target_errno_table[] in syscall_init(). */
496static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
497};
498
637947f1 499/*
fe8f096b 500 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 501 * minus the errnos that are not actually generic to all archs.
502 */
b92c47c1 503static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 504 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 505 [EIDRM] = TARGET_EIDRM,
506 [ECHRNG] = TARGET_ECHRNG,
507 [EL2NSYNC] = TARGET_EL2NSYNC,
508 [EL3HLT] = TARGET_EL3HLT,
509 [EL3RST] = TARGET_EL3RST,
510 [ELNRNG] = TARGET_ELNRNG,
511 [EUNATCH] = TARGET_EUNATCH,
512 [ENOCSI] = TARGET_ENOCSI,
513 [EL2HLT] = TARGET_EL2HLT,
514 [EDEADLK] = TARGET_EDEADLK,
515 [ENOLCK] = TARGET_ENOLCK,
516 [EBADE] = TARGET_EBADE,
517 [EBADR] = TARGET_EBADR,
518 [EXFULL] = TARGET_EXFULL,
519 [ENOANO] = TARGET_ENOANO,
520 [EBADRQC] = TARGET_EBADRQC,
521 [EBADSLT] = TARGET_EBADSLT,
522 [EBFONT] = TARGET_EBFONT,
523 [ENOSTR] = TARGET_ENOSTR,
524 [ENODATA] = TARGET_ENODATA,
525 [ETIME] = TARGET_ETIME,
526 [ENOSR] = TARGET_ENOSR,
527 [ENONET] = TARGET_ENONET,
528 [ENOPKG] = TARGET_ENOPKG,
529 [EREMOTE] = TARGET_EREMOTE,
530 [ENOLINK] = TARGET_ENOLINK,
531 [EADV] = TARGET_EADV,
532 [ESRMNT] = TARGET_ESRMNT,
533 [ECOMM] = TARGET_ECOMM,
534 [EPROTO] = TARGET_EPROTO,
535 [EDOTDOT] = TARGET_EDOTDOT,
536 [EMULTIHOP] = TARGET_EMULTIHOP,
537 [EBADMSG] = TARGET_EBADMSG,
538 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
539 [EOVERFLOW] = TARGET_EOVERFLOW,
540 [ENOTUNIQ] = TARGET_ENOTUNIQ,
541 [EBADFD] = TARGET_EBADFD,
542 [EREMCHG] = TARGET_EREMCHG,
543 [ELIBACC] = TARGET_ELIBACC,
544 [ELIBBAD] = TARGET_ELIBBAD,
545 [ELIBSCN] = TARGET_ELIBSCN,
546 [ELIBMAX] = TARGET_ELIBMAX,
547 [ELIBEXEC] = TARGET_ELIBEXEC,
548 [EILSEQ] = TARGET_EILSEQ,
549 [ENOSYS] = TARGET_ENOSYS,
550 [ELOOP] = TARGET_ELOOP,
551 [ERESTART] = TARGET_ERESTART,
552 [ESTRPIPE] = TARGET_ESTRPIPE,
553 [ENOTEMPTY] = TARGET_ENOTEMPTY,
554 [EUSERS] = TARGET_EUSERS,
555 [ENOTSOCK] = TARGET_ENOTSOCK,
556 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
557 [EMSGSIZE] = TARGET_EMSGSIZE,
558 [EPROTOTYPE] = TARGET_EPROTOTYPE,
559 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
560 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
561 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
562 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
563 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
564 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
565 [EADDRINUSE] = TARGET_EADDRINUSE,
566 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
567 [ENETDOWN] = TARGET_ENETDOWN,
568 [ENETUNREACH] = TARGET_ENETUNREACH,
569 [ENETRESET] = TARGET_ENETRESET,
570 [ECONNABORTED] = TARGET_ECONNABORTED,
571 [ECONNRESET] = TARGET_ECONNRESET,
572 [ENOBUFS] = TARGET_ENOBUFS,
573 [EISCONN] = TARGET_EISCONN,
574 [ENOTCONN] = TARGET_ENOTCONN,
575 [EUCLEAN] = TARGET_EUCLEAN,
576 [ENOTNAM] = TARGET_ENOTNAM,
577 [ENAVAIL] = TARGET_ENAVAIL,
578 [EISNAM] = TARGET_EISNAM,
579 [EREMOTEIO] = TARGET_EREMOTEIO,
580 [ESHUTDOWN] = TARGET_ESHUTDOWN,
581 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
582 [ETIMEDOUT] = TARGET_ETIMEDOUT,
583 [ECONNREFUSED] = TARGET_ECONNREFUSED,
584 [EHOSTDOWN] = TARGET_EHOSTDOWN,
585 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
586 [EALREADY] = TARGET_EALREADY,
587 [EINPROGRESS] = TARGET_EINPROGRESS,
588 [ESTALE] = TARGET_ESTALE,
589 [ECANCELED] = TARGET_ECANCELED,
590 [ENOMEDIUM] = TARGET_ENOMEDIUM,
591 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 592#ifdef ENOKEY
637947f1 593 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 594#endif
595#ifdef EKEYEXPIRED
637947f1 596 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 597#endif
598#ifdef EKEYREVOKED
637947f1 599 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 600#endif
601#ifdef EKEYREJECTED
637947f1 602 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 603#endif
604#ifdef EOWNERDEAD
637947f1 605 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 606#endif
607#ifdef ENOTRECOVERABLE
637947f1 608 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 609#endif
b92c47c1 610};
637947f1
TS		 611
612static inline int host_to_target_errno(int err)
613{
2466119c
TB		 614 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
615 host_to_target_errno_table[err]) {
637947f1 616 return host_to_target_errno_table[err];
2466119c 617 }
637947f1
TS		 618 return err;
619}
620
b92c47c1
TS		 621static inline int target_to_host_errno(int err)
622{
2466119c
TB		 623 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
624 target_to_host_errno_table[err]) {
b92c47c1 625 return target_to_host_errno_table[err];
2466119c 626 }
b92c47c1
TS		 627 return err;
628}
629
992f48a0 630static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 631{
632 if (ret == -1)
637947f1 633 return -host_to_target_errno(errno);
31e31b8a
FB		 634 else
635 return ret;
636}
637
992f48a0 638static inline int is_error(abi_long ret)
31e31b8a 639{
992f48a0 640 return (abi_ulong)ret >= (abi_ulong)(-4096);
31e31b8a
FB		 641}
642
b92c47c1
TS		 643char *target_strerror(int err)
644{
962b289e
AG		 645 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
646 return NULL;
647 }
b92c47c1
TS		 648 return strerror(target_to_host_errno(err));
649}
650
4d330cee
TB		 651#define safe_syscall0(type, name) \
652static type safe_##name(void) \
653{ \
654 return safe_syscall(__NR_##name); \
655}
656
657#define safe_syscall1(type, name, type1, arg1) \
658static type safe_##name(type1 arg1) \
659{ \
660 return safe_syscall(__NR_##name, arg1); \
661}
662
663#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
664static type safe_##name(type1 arg1, type2 arg2) \
665{ \
666 return safe_syscall(__NR_##name, arg1, arg2); \
667}
668
669#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
670static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
671{ \
672 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
673}
674
675#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
676 type4, arg4) \
677static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
678{ \
679 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
680}
681
682#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
683 type4, arg4, type5, arg5) \
684static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
685 type5 arg5) \
686{ \
687 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
688}
689
690#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
691 type4, arg4, type5, arg5, type6, arg6) \
692static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
693 type5 arg5, type6 arg6) \
694{ \
695 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
696}
697
50afd02b
TB		 698safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
699safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 700safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
701 int, flags, mode_t, mode)
4af80a37
TB		 702safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
703 struct rusage *, rusage)
704safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
705 int, options, struct rusage *, rusage)
ffdcbe22 706safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
6df9d38d
PM		 707safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
708 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
d509eeb1
PM		 709safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
710 const struct timespec *,timeout,int *,uaddr2,int,val3)
2fe4fba1 711safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 712safe_syscall2(int, kill, pid_t, pid, int, sig)
713safe_syscall2(int, tkill, int, tid, int, sig)
714safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
50afd02b 715
8289d112
PB		 716static inline int host_to_target_sock_type(int host_type)
717{
718 int target_type;
719
720 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
721 case SOCK_DGRAM:
722 target_type = TARGET_SOCK_DGRAM;
723 break;
724 case SOCK_STREAM:
725 target_type = TARGET_SOCK_STREAM;
726 break;
727 default:
728 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
729 break;
730 }
731
732#if defined(SOCK_CLOEXEC)
733 if (host_type & SOCK_CLOEXEC) {
734 target_type |= TARGET_SOCK_CLOEXEC;
735 }
736#endif
737
738#if defined(SOCK_NONBLOCK)
739 if (host_type & SOCK_NONBLOCK) {
740 target_type |= TARGET_SOCK_NONBLOCK;
741 }
742#endif
743
744 return target_type;
745}
746
992f48a0
BS		 747static abi_ulong target_brk;
748static abi_ulong target_original_brk;
4d1de87c 749static abi_ulong brk_page;
31e31b8a 750
992f48a0 751void target_set_brk(abi_ulong new_brk)
31e31b8a 752{
4c1de73d 753 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 754 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 755}
756
4d1de87c
CV		 757//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
758#define DEBUGF_BRK(message, args...)
759
0da46a6e 760/* do_brk() must return target values and target errnos. */
992f48a0 761abi_long do_brk(abi_ulong new_brk)
31e31b8a 762{
992f48a0 763 abi_long mapped_addr;
31e31b8a
FB		 764 int new_alloc_size;
765
3a0c6c4a 766 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 767
768 if (!new_brk) {
3a0c6c4a 769 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 770 return target_brk;
4d1de87c
CV		 771 }
772 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 773 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
774 target_brk);
7ab240ad 775 return target_brk;
4d1de87c 776 }
3b46e624 777
4d1de87c
CV		 778 /* If the new brk is less than the highest page reserved to the
779 * target heap allocation, set it and we're almost done... */
780 if (new_brk <= brk_page) {
781 /* Heap contents are initialized to zero, as for anonymous
782 * mapped pages. */
783 if (new_brk > target_brk) {
784 memset(g2h(target_brk), 0, new_brk - target_brk);
785 }
31e31b8a 786 target_brk = new_brk;
3a0c6c4a 787 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
53a5960a 788 return target_brk;
31e31b8a
FB		 789 }
790
00faf08c
PM		 791 /* We need to allocate more memory after the brk... Note that
792 * we don't use MAP_FIXED because that will map over the top of
793 * any existing mapping (like the one with the host libc or qemu
794 * itself); instead we treat "mapped but at wrong address" as
795 * a failure and unmap again.
796 */
4d1de87c 797 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 798 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 799 PROT_READ|PROT_WRITE,
00faf08c
PM		 800 MAP_ANON|MAP_PRIVATE, 0, 0));
801
802 if (mapped_addr == brk_page) {
70afc343
CV		 803 /* Heap contents are initialized to zero, as for anonymous
804 * mapped pages. Technically the new pages are already
805 * initialized to zero since they *are* anonymous mapped
806 * pages, however we have to take care with the contents that
807 * come from the remaining part of the previous page: it may
808 * contains garbage data due to a previous heap usage (grown
809 * then shrunken). */
810 memset(g2h(target_brk), 0, brk_page - target_brk);
811
00faf08c 812 target_brk = new_brk;
4d1de87c 813 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 814 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
815 target_brk);
00faf08c
PM		 816 return target_brk;
817 } else if (mapped_addr != -1) {
818 /* Mapped but at wrong address, meaning there wasn't actually
819 * enough space for this brk.
820 */
821 target_munmap(mapped_addr, new_alloc_size);
822 mapped_addr = -1;
3a0c6c4a 823 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 824 }
825 else {
3a0c6c4a 826 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 827 }
7ab240ad 828
7dd46c02
RH		 829#if defined(TARGET_ALPHA)
830 /* We (partially) emulate OSF/1 on Alpha, which requires we
831 return a proper errno, not an unchanged brk value. */
00faf08c 832 return -TARGET_ENOMEM;
7dd46c02 833#endif
00faf08c 834 /* For everything else, return the previous break. */
7ab240ad 835 return target_brk;
31e31b8a
FB		 836}
837
26edcf41
TS		 838static inline abi_long copy_from_user_fdset(fd_set *fds,
839 abi_ulong target_fds_addr,
840 int n)
31e31b8a 841{
26edcf41
TS		 842 int i, nw, j, k;
843 abi_ulong b, *target_fds;
844
845 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
846 if (!(target_fds = lock_user(VERIFY_READ,
847 target_fds_addr,
848 sizeof(abi_ulong) * nw,
849 1)))
850 return -TARGET_EFAULT;
851
852 FD_ZERO(fds);
853 k = 0;
854 for (i = 0; i < nw; i++) {
855 /* grab the abi_ulong */
856 __get_user(b, &target_fds[i]);
857 for (j = 0; j < TARGET_ABI_BITS; j++) {
858 /* check the bit inside the abi_ulong */
859 if ((b >> j) & 1)
860 FD_SET(k, fds);
861 k++;
31e31b8a 862 }
31e31b8a 863 }
26edcf41
TS		 864
865 unlock_user(target_fds, target_fds_addr, 0);
866
867 return 0;
31e31b8a
FB		 868}
869
055e0906
MF		 870static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
871 abi_ulong target_fds_addr,
872 int n)
873{
874 if (target_fds_addr) {
875 if (copy_from_user_fdset(fds, target_fds_addr, n))
876 return -TARGET_EFAULT;
877 *fds_ptr = fds;
878 } else {
879 *fds_ptr = NULL;
880 }
881 return 0;
882}
883
26edcf41
TS		 884static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
885 const fd_set *fds,
886 int n)
31e31b8a 887{
31e31b8a 888 int i, nw, j, k;
992f48a0 889 abi_long v;
26edcf41 890 abi_ulong *target_fds;
31e31b8a 891
26edcf41
TS		 892 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
893 if (!(target_fds = lock_user(VERIFY_WRITE,
894 target_fds_addr,
895 sizeof(abi_ulong) * nw,
896 0)))
897 return -TARGET_EFAULT;
898
899 k = 0;
900 for (i = 0; i < nw; i++) {
901 v = 0;
902 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 903 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 904 k++;
31e31b8a 905 }
26edcf41 906 __put_user(v, &target_fds[i]);
31e31b8a 907 }
26edcf41
TS		 908
909 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
910
911 return 0;
31e31b8a
FB		 912}
913
c596ed17
FB		 914#if defined(__alpha__)
915#define HOST_HZ 1024
916#else
917#define HOST_HZ 100
918#endif
919
992f48a0 920static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 921{
922#if HOST_HZ == TARGET_HZ
923 return ticks;
924#else
925 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
926#endif
927}
928
579a97f7
FB		 929static inline abi_long host_to_target_rusage(abi_ulong target_addr,
930 const struct rusage *rusage)
b409186b 931{
53a5960a
PB		 932 struct target_rusage *target_rusage;
933
579a97f7
FB		 934 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
935 return -TARGET_EFAULT;
cbb21eed
MB		 936 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
937 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
938 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
939 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
940 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
941 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
942 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
943 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
944 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
945 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
946 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
947 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
948 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
949 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
950 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
951 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
952 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
953 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 954 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 955
956 return 0;
b409186b
FB		 957}
958
cbb21eed 959static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 960{
cbb21eed 961 abi_ulong target_rlim_swap;
95b33b2f
WT		 962 rlim_t result;
963
cbb21eed
MB		 964 target_rlim_swap = tswapal(target_rlim);
965 if (target_rlim_swap == TARGET_RLIM_INFINITY)
966 return RLIM_INFINITY;
967
968 result = target_rlim_swap;
969 if (target_rlim_swap != (rlim_t)result)
970 return RLIM_INFINITY;
95b33b2f
WT		 971
972 return result;
81bbe906
TY		 973}
974
cbb21eed 975static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 976{
cbb21eed
MB		 977 abi_ulong target_rlim_swap;
978 abi_ulong result;
95b33b2f 979
cbb21eed 980 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 981 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 982 else
95b33b2f 983 target_rlim_swap = rlim;
cbb21eed 984 result = tswapal(target_rlim_swap);
95b33b2f
WT		 985
986 return result;
81bbe906
TY		 987}
988
e22b7015
WT		 989static inline int target_to_host_resource(int code)
990{
991 switch (code) {
992 case TARGET_RLIMIT_AS:
993 return RLIMIT_AS;
994 case TARGET_RLIMIT_CORE:
995 return RLIMIT_CORE;
996 case TARGET_RLIMIT_CPU:
997 return RLIMIT_CPU;
998 case TARGET_RLIMIT_DATA:
999 return RLIMIT_DATA;
1000 case TARGET_RLIMIT_FSIZE:
1001 return RLIMIT_FSIZE;
1002 case TARGET_RLIMIT_LOCKS:
1003 return RLIMIT_LOCKS;
1004 case TARGET_RLIMIT_MEMLOCK:
1005 return RLIMIT_MEMLOCK;
1006 case TARGET_RLIMIT_MSGQUEUE:
1007 return RLIMIT_MSGQUEUE;
1008 case TARGET_RLIMIT_NICE:
1009 return RLIMIT_NICE;
1010 case TARGET_RLIMIT_NOFILE:
1011 return RLIMIT_NOFILE;
1012 case TARGET_RLIMIT_NPROC:
1013 return RLIMIT_NPROC;
1014 case TARGET_RLIMIT_RSS:
1015 return RLIMIT_RSS;
1016 case TARGET_RLIMIT_RTPRIO:
1017 return RLIMIT_RTPRIO;
1018 case TARGET_RLIMIT_SIGPENDING:
1019 return RLIMIT_SIGPENDING;
1020 case TARGET_RLIMIT_STACK:
1021 return RLIMIT_STACK;
1022 default:
1023 return code;
1024 }
1025}
1026
788f5ec4
TS		 1027static inline abi_long copy_from_user_timeval(struct timeval *tv,
1028 abi_ulong target_tv_addr)
31e31b8a 1029{
53a5960a
PB		 1030 struct target_timeval *target_tv;
1031
788f5ec4 1032 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
579a97f7 1033 return -TARGET_EFAULT;
788f5ec4
TS		 1034
1035 __get_user(tv->tv_sec, &target_tv->tv_sec);
1036 __get_user(tv->tv_usec, &target_tv->tv_usec);
1037
1038 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1039
1040 return 0;
31e31b8a
FB		 1041}
1042
788f5ec4
TS		 1043static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1044 const struct timeval *tv)
31e31b8a 1045{
53a5960a
PB		 1046 struct target_timeval *target_tv;
1047
788f5ec4 1048 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
579a97f7 1049 return -TARGET_EFAULT;
788f5ec4
TS		 1050
1051 __put_user(tv->tv_sec, &target_tv->tv_sec);
1052 __put_user(tv->tv_usec, &target_tv->tv_usec);
1053
1054 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1055
1056 return 0;
31e31b8a
FB		 1057}
1058
ef4467e9
PB		 1059static inline abi_long copy_from_user_timezone(struct timezone *tz,
1060 abi_ulong target_tz_addr)
1061{
1062 struct target_timezone *target_tz;
1063
1064 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1065 return -TARGET_EFAULT;
1066 }
1067
1068 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1069 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1070
1071 unlock_user_struct(target_tz, target_tz_addr, 0);
1072
1073 return 0;
1074}
1075
8ec9cf89
NF		 1076#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1077#include <mqueue.h>
1078
24e1003a
AJ		 1079static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1080 abi_ulong target_mq_attr_addr)
1081{
1082 struct target_mq_attr *target_mq_attr;
1083
1084 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1085 target_mq_attr_addr, 1))
1086 return -TARGET_EFAULT;
1087
1088 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1089 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1090 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1091 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1092
1093 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1094
1095 return 0;
1096}
1097
1098static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1099 const struct mq_attr *attr)
1100{
1101 struct target_mq_attr *target_mq_attr;
1102
1103 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1104 target_mq_attr_addr, 0))
1105 return -TARGET_EFAULT;
1106
1107 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1108 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1109 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1110 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1111
1112 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1113
1114 return 0;
1115}
8ec9cf89 1116#endif
31e31b8a 1117
055e0906 1118#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1119/* do_select() must return target values and target errnos. */
992f48a0 1120static abi_long do_select(int n,
26edcf41
TS		 1121 abi_ulong rfd_addr, abi_ulong wfd_addr,
1122 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1123{
1124 fd_set rfds, wfds, efds;
1125 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1126 struct timeval tv;
1127 struct timespec ts, *ts_ptr;
992f48a0 1128 abi_long ret;
31e31b8a 1129
055e0906
MF		 1130 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1131 if (ret) {
1132 return ret;
53a5960a 1133 }
055e0906
MF		 1134 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1135 if (ret) {
1136 return ret;
53a5960a 1137 }
055e0906
MF		 1138 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1139 if (ret) {
1140 return ret;
53a5960a 1141 }
3b46e624 1142
26edcf41 1143 if (target_tv_addr) {
788f5ec4
TS		 1144 if (copy_from_user_timeval(&tv, target_tv_addr))
1145 return -TARGET_EFAULT;
6df9d38d
PM		 1146 ts.tv_sec = tv.tv_sec;
1147 ts.tv_nsec = tv.tv_usec * 1000;
1148 ts_ptr = &ts;
31e31b8a 1149 } else {
6df9d38d 1150 ts_ptr = NULL;
31e31b8a 1151 }
26edcf41 1152
6df9d38d
PM		 1153 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1154 ts_ptr, NULL));
53a5960a 1155
26edcf41
TS		 1156 if (!is_error(ret)) {
1157 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1158 return -TARGET_EFAULT;
1159 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1160 return -TARGET_EFAULT;
1161 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1162 return -TARGET_EFAULT;
31e31b8a 1163
6df9d38d
PM		 1164 if (target_tv_addr) {
1165 tv.tv_sec = ts.tv_sec;
1166 tv.tv_usec = ts.tv_nsec / 1000;
1167 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1168 return -TARGET_EFAULT;
1169 }
1170 }
31e31b8a 1171 }
579a97f7 1172
31e31b8a
FB		 1173 return ret;
1174}
055e0906 1175#endif
31e31b8a 1176
099d6b0f
RV		 1177static abi_long do_pipe2(int host_pipe[], int flags)
1178{
1179#ifdef CONFIG_PIPE2
1180 return pipe2(host_pipe, flags);
1181#else
1182 return -ENOSYS;
1183#endif
1184}
1185
fb41a66e
RH		 1186static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1187 int flags, int is_pipe2)
099d6b0f
RV		 1188{
1189 int host_pipe[2];
1190 abi_long ret;
1191 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1192
1193 if (is_error(ret))
1194 return get_errno(ret);
fb41a66e
RH		 1195
1196 /* Several targets have special calling conventions for the original
1197 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1198 if (!is_pipe2) {
1199#if defined(TARGET_ALPHA)
1200 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1201 return host_pipe[0];
1202#elif defined(TARGET_MIPS)
1203 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1204 return host_pipe[0];
1205#elif defined(TARGET_SH4)
597c0212 1206 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1207 return host_pipe[0];
82f05b69
PM		 1208#elif defined(TARGET_SPARC)
1209 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1210 return host_pipe[0];
597c0212 1211#endif
fb41a66e
RH		 1212 }
1213
099d6b0f
RV		 1214 if (put_user_s32(host_pipe[0], pipedes)
1215 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1216 return -TARGET_EFAULT;
099d6b0f
RV		 1217 return get_errno(ret);
1218}
1219
b975b83b
LL		 1220static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1221 abi_ulong target_addr,
1222 socklen_t len)
1223{
1224 struct target_ip_mreqn *target_smreqn;
1225
1226 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1227 if (!target_smreqn)
1228 return -TARGET_EFAULT;
1229 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1230 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1231 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1232 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1233 unlock_user(target_smreqn, target_addr, 0);
1234
1235 return 0;
1236}
1237
7b36f782 1238static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1239 abi_ulong target_addr,
1240 socklen_t len)
7854b056 1241{
607175e0
AJ		 1242 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1243 sa_family_t sa_family;
53a5960a
PB		 1244 struct target_sockaddr *target_saddr;
1245
7b36f782
LV		 1246 if (fd_trans_target_to_host_addr(fd)) {
1247 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1248 }
1249
579a97f7
FB		 1250 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1251 if (!target_saddr)
1252 return -TARGET_EFAULT;
607175e0
AJ		 1253
1254 sa_family = tswap16(target_saddr->sa_family);
1255
1256 /* Oops. The caller might send a incomplete sun_path; sun_path
1257 * must be terminated by \0 (see the manual page), but
1258 * unfortunately it is quite common to specify sockaddr_un
1259 * length as "strlen(x->sun_path)" while it should be
1260 * "strlen(...) + 1". We'll fix that here if needed.
1261 * Linux kernel has a similar feature.
1262 */
1263
1264 if (sa_family == AF_UNIX) {
1265 if (len < unix_maxlen && len > 0) {
1266 char *cp = (char*)target_saddr;
1267
1268 if ( cp[len-1] && !cp[len] )
1269 len++;
1270 }
1271 if (len > unix_maxlen)
1272 len = unix_maxlen;
1273 }
1274
53a5960a 1275 memcpy(addr, target_saddr, len);
607175e0 1276 addr->sa_family = sa_family;
6c5b5645
LV		 1277 if (sa_family == AF_NETLINK) {
1278 struct sockaddr_nl *nladdr;
1279
1280 nladdr = (struct sockaddr_nl *)addr;
1281 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1282 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1283 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1284 struct target_sockaddr_ll *lladdr;
1285
1286 lladdr = (struct target_sockaddr_ll *)addr;
1287 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1288 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1289 }
53a5960a 1290 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1291
1292 return 0;
7854b056
FB		 1293}
1294
579a97f7
FB		 1295static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1296 struct sockaddr *addr,
1297 socklen_t len)
7854b056 1298{
53a5960a
PB		 1299 struct target_sockaddr *target_saddr;
1300
579a97f7
FB		 1301 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1302 if (!target_saddr)
1303 return -TARGET_EFAULT;
53a5960a
PB		 1304 memcpy(target_saddr, addr, len);
1305 target_saddr->sa_family = tswap16(addr->sa_family);
6c5b5645
LV		 1306 if (addr->sa_family == AF_NETLINK) {
1307 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1308 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1309 target_nl->nl_groups = tswap32(target_nl->nl_groups);
1310 }
53a5960a 1311 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1312
1313 return 0;
7854b056
FB		 1314}
1315
5a4a898d
FB		 1316static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1317 struct target_msghdr *target_msgh)
7854b056
FB		 1318{
1319 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1320 abi_long msg_controllen;
1321 abi_ulong target_cmsg_addr;
ee104587 1322 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1323 socklen_t space = 0;
5a4a898d 1324
cbb21eed 1325 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1326 if (msg_controllen < sizeof (struct target_cmsghdr))
1327 goto the_end;
cbb21eed 1328 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1329 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1330 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1331 if (!target_cmsg)
1332 return -TARGET_EFAULT;
7854b056
FB		 1333
1334 while (cmsg && target_cmsg) {
1335 void *data = CMSG_DATA(cmsg);
1336 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1337
cbb21eed 1338 int len = tswapal(target_cmsg->cmsg_len)
7854b056
FB		 1339 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1340
1341 space += CMSG_SPACE(len);
1342 if (space > msgh->msg_controllen) {
1343 space -= CMSG_SPACE(len);
c2aeb258
PM		 1344 /* This is a QEMU bug, since we allocated the payload
1345 * area ourselves (unlike overflow in host-to-target
1346 * conversion, which is just the guest giving us a buffer
1347 * that's too small). It can't happen for the payload types
1348 * we currently support; if it becomes an issue in future
1349 * we would need to improve our allocation strategy to
1350 * something more intelligent than "twice the size of the
1351 * target buffer we're reading from".
1352 */
31febb71 1353 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1354 break;
1355 }
1356
dbf4f796
PJ		 1357 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1358 cmsg->cmsg_level = SOL_SOCKET;
1359 } else {
1360 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1361 }
7854b056
FB		 1362 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1363 cmsg->cmsg_len = CMSG_LEN(len);
1364
30b8b68e 1365 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1366 int *fd = (int *)data;
1367 int *target_fd = (int *)target_data;
1368 int i, numfds = len / sizeof(int);
1369
876e23cb
PM		 1370 for (i = 0; i < numfds; i++) {
1371 __get_user(fd[i], target_fd + i);
1372 }
30b8b68e
AS		 1373 } else if (cmsg->cmsg_level == SOL_SOCKET
1374 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1375 struct ucred *cred = (struct ucred *)data;
1376 struct target_ucred *target_cred =
1377 (struct target_ucred *)target_data;
1378
876e23cb
PM		 1379 __get_user(cred->pid, &target_cred->pid);
1380 __get_user(cred->uid, &target_cred->uid);
1381 __get_user(cred->gid, &target_cred->gid);
30b8b68e
AS		 1382 } else {
1383 gemu_log("Unsupported ancillary data: %d/%d\n",
1384 cmsg->cmsg_level, cmsg->cmsg_type);
1385 memcpy(data, target_data, len);
7854b056
FB		 1386 }
1387
1388 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1389 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1390 target_cmsg_start);
7854b056 1391 }
5a4a898d
FB		 1392 unlock_user(target_cmsg, target_cmsg_addr, 0);
1393 the_end:
7854b056 1394 msgh->msg_controllen = space;
5a4a898d 1395 return 0;
7854b056
FB		 1396}
1397
5a4a898d
FB		 1398static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1399 struct msghdr *msgh)
7854b056
FB		 1400{
1401 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1402 abi_long msg_controllen;
1403 abi_ulong target_cmsg_addr;
ee104587 1404 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1405 socklen_t space = 0;
1406
cbb21eed 1407 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1408 if (msg_controllen < sizeof (struct target_cmsghdr))
1409 goto the_end;
cbb21eed 1410 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1411 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1412 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1413 if (!target_cmsg)
1414 return -TARGET_EFAULT;
1415
7854b056
FB		 1416 while (cmsg && target_cmsg) {
1417 void *data = CMSG_DATA(cmsg);
1418 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1419
1420 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
c2aeb258 1421 int tgt_len, tgt_space;
7854b056 1422
c2aeb258
PM		 1423 /* We never copy a half-header but may copy half-data;
1424 * this is Linux's behaviour in put_cmsg(). Note that
1425 * truncation here is a guest problem (which we report
1426 * to the guest via the CTRUNC bit), unlike truncation
1427 * in target_to_host_cmsg, which is a QEMU bug.
1428 */
1429 if (msg_controllen < sizeof(struct cmsghdr)) {
1430 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1431 break;
1432 }
1433
dbf4f796
PJ		 1434 if (cmsg->cmsg_level == SOL_SOCKET) {
1435 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1436 } else {
1437 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1438 }
7854b056 1439 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1440
c2aeb258
PM		 1441 tgt_len = TARGET_CMSG_LEN(len);
1442
1443 /* Payload types which need a different size of payload on
1444 * the target must adjust tgt_len here.
1445 */
1446 switch (cmsg->cmsg_level) {
1447 case SOL_SOCKET:
1448 switch (cmsg->cmsg_type) {
1449 case SO_TIMESTAMP:
1450 tgt_len = sizeof(struct target_timeval);
1451 break;
1452 default:
1453 break;
1454 }
1455 default:
1456 break;
1457 }
1458
1459 if (msg_controllen < tgt_len) {
1460 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
1461 tgt_len = msg_controllen;
1462 }
1463
1464 /* We must now copy-and-convert len bytes of payload
1465 * into tgt_len bytes of destination space. Bear in mind
1466 * that in both source and destination we may be dealing
1467 * with a truncated value!
1468 */
52b65494
HD		 1469 switch (cmsg->cmsg_level) {
1470 case SOL_SOCKET:
1471 switch (cmsg->cmsg_type) {
1472 case SCM_RIGHTS:
1473 {
1474 int *fd = (int *)data;
1475 int *target_fd = (int *)target_data;
c2aeb258 1476 int i, numfds = tgt_len / sizeof(int);
52b65494 1477
876e23cb
PM		 1478 for (i = 0; i < numfds; i++) {
1479 __put_user(fd[i], target_fd + i);
1480 }
52b65494
HD		 1481 break;
1482 }
1483 case SO_TIMESTAMP:
1484 {
1485 struct timeval *tv = (struct timeval *)data;
1486 struct target_timeval *target_tv =
1487 (struct target_timeval *)target_data;
1488
c2aeb258
PM		 1489 if (len != sizeof(struct timeval) ||
1490 tgt_len != sizeof(struct target_timeval)) {
52b65494 1491 goto unimplemented;
c2aeb258 1492 }
52b65494
HD		 1493
1494 /* copy struct timeval to target */
876e23cb
PM		 1495 __put_user(tv->tv_sec, &target_tv->tv_sec);
1496 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 1497 break;
1498 }
4bc29756
HD		 1499 case SCM_CREDENTIALS:
1500 {
1501 struct ucred *cred = (struct ucred *)data;
1502 struct target_ucred *target_cred =
1503 (struct target_ucred *)target_data;
1504
1505 __put_user(cred->pid, &target_cred->pid);
1506 __put_user(cred->uid, &target_cred->uid);
1507 __put_user(cred->gid, &target_cred->gid);
1508 break;
1509 }
52b65494
HD		 1510 default:
1511 goto unimplemented;
1512 }
1513 break;
7854b056 1514
52b65494
HD		 1515 default:
1516 unimplemented:
aebf5bc7
JH		 1517 gemu_log("Unsupported ancillary data: %d/%d\n",
1518 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 1519 memcpy(target_data, data, MIN(len, tgt_len));
1520 if (tgt_len > len) {
1521 memset(target_data + len, 0, tgt_len - len);
1522 }
7854b056
FB		 1523 }
1524
c2aeb258 1525 target_cmsg->cmsg_len = tswapal(tgt_len);
ee104587 1526 tgt_space = TARGET_CMSG_SPACE(len);
c2aeb258
PM		 1527 if (msg_controllen < tgt_space) {
1528 tgt_space = msg_controllen;
1529 }
1530 msg_controllen -= tgt_space;
1531 space += tgt_space;
7854b056 1532 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1533 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1534 target_cmsg_start);
7854b056 1535 }
5a4a898d
FB		 1536 unlock_user(target_cmsg, target_cmsg_addr, space);
1537 the_end:
cbb21eed 1538 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1539 return 0;
7854b056
FB		 1540}
1541
6c5b5645
LV		 1542static void tswap_nlmsghdr(struct nlmsghdr *nlh)
1543{
1544 nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
1545 nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
1546 nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
1547 nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
1548 nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
1549}
1550
1551static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
1552 size_t len,
1553 abi_long (*host_to_target_nlmsg)
1554 (struct nlmsghdr *))
1555{
1556 uint32_t nlmsg_len;
1557 abi_long ret;
1558
1559 while (len > sizeof(struct nlmsghdr)) {
1560
1561 nlmsg_len = nlh->nlmsg_len;
1562 if (nlmsg_len < sizeof(struct nlmsghdr) ||
1563 nlmsg_len > len) {
1564 break;
1565 }
1566
1567 switch (nlh->nlmsg_type) {
1568 case NLMSG_DONE:
1569 tswap_nlmsghdr(nlh);
1570 return 0;
1571 case NLMSG_NOOP:
1572 break;
1573 case NLMSG_ERROR:
1574 {
1575 struct nlmsgerr *e = NLMSG_DATA(nlh);
1576 e->error = tswap32(e->error);
1577 tswap_nlmsghdr(&e->msg);
1578 tswap_nlmsghdr(nlh);
1579 return 0;
1580 }
1581 default:
1582 ret = host_to_target_nlmsg(nlh);
1583 if (ret < 0) {
1584 tswap_nlmsghdr(nlh);
1585 return ret;
1586 }
1587 break;
1588 }
1589 tswap_nlmsghdr(nlh);
1590 len -= NLMSG_ALIGN(nlmsg_len);
1591 nlh = (struct nlmsghdr *)(((char*)nlh) + NLMSG_ALIGN(nlmsg_len));
1592 }
1593 return 0;
1594}
1595
1596static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
1597 size_t len,
1598 abi_long (*target_to_host_nlmsg)
1599 (struct nlmsghdr *))
1600{
1601 int ret;
1602
1603 while (len > sizeof(struct nlmsghdr)) {
1604 if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
1605 tswap32(nlh->nlmsg_len) > len) {
1606 break;
1607 }
1608 tswap_nlmsghdr(nlh);
1609 switch (nlh->nlmsg_type) {
1610 case NLMSG_DONE:
1611 return 0;
1612 case NLMSG_NOOP:
1613 break;
1614 case NLMSG_ERROR:
1615 {
1616 struct nlmsgerr *e = NLMSG_DATA(nlh);
1617 e->error = tswap32(e->error);
1618 tswap_nlmsghdr(&e->msg);
1619 }
1620 default:
1621 ret = target_to_host_nlmsg(nlh);
1622 if (ret < 0) {
1623 return ret;
1624 }
1625 }
1626 len -= NLMSG_ALIGN(nlh->nlmsg_len);
1627 nlh = (struct nlmsghdr *)(((char *)nlh) + NLMSG_ALIGN(nlh->nlmsg_len));
1628 }
1629 return 0;
1630}
1631
575b22b1 1632#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 1633static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
1634 size_t len,
1635 abi_long (*host_to_target_rtattr)
1636 (struct rtattr *))
1637{
1638 unsigned short rta_len;
1639 abi_long ret;
1640
1641 while (len > sizeof(struct rtattr)) {
1642 rta_len = rtattr->rta_len;
1643 if (rta_len < sizeof(struct rtattr) ||
1644 rta_len > len) {
1645 break;
1646 }
1647 ret = host_to_target_rtattr(rtattr);
1648 rtattr->rta_len = tswap16(rtattr->rta_len);
1649 rtattr->rta_type = tswap16(rtattr->rta_type);
1650 if (ret < 0) {
1651 return ret;
1652 }
1653 len -= RTA_ALIGN(rta_len);
1654 rtattr = (struct rtattr *)(((char *)rtattr) + RTA_ALIGN(rta_len));
1655 }
1656 return 0;
1657}
1658
1659static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
1660{
1661 uint32_t *u32;
1662 struct rtnl_link_stats *st;
1663 struct rtnl_link_stats64 *st64;
1664 struct rtnl_link_ifmap *map;
1665
1666 switch (rtattr->rta_type) {
1667 /* binary stream */
1668 case IFLA_ADDRESS:
1669 case IFLA_BROADCAST:
1670 /* string */
1671 case IFLA_IFNAME:
1672 case IFLA_QDISC:
1673 break;
1674 /* uin8_t */
1675 case IFLA_OPERSTATE:
1676 case IFLA_LINKMODE:
1677 case IFLA_CARRIER:
1678 case IFLA_PROTO_DOWN:
1679 break;
1680 /* uint32_t */
1681 case IFLA_MTU:
1682 case IFLA_LINK:
1683 case IFLA_WEIGHT:
1684 case IFLA_TXQLEN:
1685 case IFLA_CARRIER_CHANGES:
1686 case IFLA_NUM_RX_QUEUES:
1687 case IFLA_NUM_TX_QUEUES:
1688 case IFLA_PROMISCUITY:
1689 case IFLA_EXT_MASK:
1690 case IFLA_LINK_NETNSID:
1691 case IFLA_GROUP:
1692 case IFLA_MASTER:
1693 case IFLA_NUM_VF:
1694 u32 = RTA_DATA(rtattr);
1695 *u32 = tswap32(*u32);
1696 break;
1697 /* struct rtnl_link_stats */
1698 case IFLA_STATS:
1699 st = RTA_DATA(rtattr);
1700 st->rx_packets = tswap32(st->rx_packets);
1701 st->tx_packets = tswap32(st->tx_packets);
1702 st->rx_bytes = tswap32(st->rx_bytes);
1703 st->tx_bytes = tswap32(st->tx_bytes);
1704 st->rx_errors = tswap32(st->rx_errors);
1705 st->tx_errors = tswap32(st->tx_errors);
1706 st->rx_dropped = tswap32(st->rx_dropped);
1707 st->tx_dropped = tswap32(st->tx_dropped);
1708 st->multicast = tswap32(st->multicast);
1709 st->collisions = tswap32(st->collisions);
1710
1711 /* detailed rx_errors: */
1712 st->rx_length_errors = tswap32(st->rx_length_errors);
1713 st->rx_over_errors = tswap32(st->rx_over_errors);
1714 st->rx_crc_errors = tswap32(st->rx_crc_errors);
1715 st->rx_frame_errors = tswap32(st->rx_frame_errors);
1716 st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
1717 st->rx_missed_errors = tswap32(st->rx_missed_errors);
1718
1719 /* detailed tx_errors */
1720 st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
1721 st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
1722 st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
1723 st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
1724 st->tx_window_errors = tswap32(st->tx_window_errors);
1725
1726 /* for cslip etc */
1727 st->rx_compressed = tswap32(st->rx_compressed);
1728 st->tx_compressed = tswap32(st->tx_compressed);
1729 break;
1730 /* struct rtnl_link_stats64 */
1731 case IFLA_STATS64:
1732 st64 = RTA_DATA(rtattr);
1733 st64->rx_packets = tswap64(st64->rx_packets);
1734 st64->tx_packets = tswap64(st64->tx_packets);
1735 st64->rx_bytes = tswap64(st64->rx_bytes);
1736 st64->tx_bytes = tswap64(st64->tx_bytes);
1737 st64->rx_errors = tswap64(st64->rx_errors);
1738 st64->tx_errors = tswap64(st64->tx_errors);
1739 st64->rx_dropped = tswap64(st64->rx_dropped);
1740 st64->tx_dropped = tswap64(st64->tx_dropped);
1741 st64->multicast = tswap64(st64->multicast);
1742 st64->collisions = tswap64(st64->collisions);
1743
1744 /* detailed rx_errors: */
1745 st64->rx_length_errors = tswap64(st64->rx_length_errors);
1746 st64->rx_over_errors = tswap64(st64->rx_over_errors);
1747 st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
1748 st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
1749 st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
1750 st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
1751
1752 /* detailed tx_errors */
1753 st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
1754 st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
1755 st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
1756 st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
1757 st64->tx_window_errors = tswap64(st64->tx_window_errors);
1758
1759 /* for cslip etc */
1760 st64->rx_compressed = tswap64(st64->rx_compressed);
1761 st64->tx_compressed = tswap64(st64->tx_compressed);
1762 break;
1763 /* struct rtnl_link_ifmap */
1764 case IFLA_MAP:
1765 map = RTA_DATA(rtattr);
1766 map->mem_start = tswap64(map->mem_start);
1767 map->mem_end = tswap64(map->mem_end);
1768 map->base_addr = tswap64(map->base_addr);
1769 map->irq = tswap16(map->irq);
1770 break;
1771 /* nested */
1772 case IFLA_AF_SPEC:
1773 case IFLA_LINKINFO:
1774 /* FIXME: implement nested type */
1775 gemu_log("Unimplemented nested type %d\n", rtattr->rta_type);
1776 break;
1777 default:
1778 gemu_log("Unknown host IFLA type: %d\n", rtattr->rta_type);
1779 break;
1780 }
1781 return 0;
1782}
1783
1784static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
1785{
1786 uint32_t *u32;
1787 struct ifa_cacheinfo *ci;
1788
1789 switch (rtattr->rta_type) {
1790 /* binary: depends on family type */
1791 case IFA_ADDRESS:
1792 case IFA_LOCAL:
1793 break;
1794 /* string */
1795 case IFA_LABEL:
1796 break;
1797 /* u32 */
1798 case IFA_FLAGS:
1799 case IFA_BROADCAST:
1800 u32 = RTA_DATA(rtattr);
1801 *u32 = tswap32(*u32);
1802 break;
1803 /* struct ifa_cacheinfo */
1804 case IFA_CACHEINFO:
1805 ci = RTA_DATA(rtattr);
1806 ci->ifa_prefered = tswap32(ci->ifa_prefered);
1807 ci->ifa_valid = tswap32(ci->ifa_valid);
1808 ci->cstamp = tswap32(ci->cstamp);
1809 ci->tstamp = tswap32(ci->tstamp);
1810 break;
1811 default:
1812 gemu_log("Unknown host IFA type: %d\n", rtattr->rta_type);
1813 break;
1814 }
1815 return 0;
1816}
1817
1818static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
1819{
1820 uint32_t *u32;
1821 switch (rtattr->rta_type) {
1822 /* binary: depends on family type */
1823 case RTA_GATEWAY:
1824 case RTA_DST:
1825 case RTA_PREFSRC:
1826 break;
1827 /* u32 */
1828 case RTA_PRIORITY:
1829 case RTA_TABLE:
1830 case RTA_OIF:
1831 u32 = RTA_DATA(rtattr);
1832 *u32 = tswap32(*u32);
1833 break;
1834 default:
1835 gemu_log("Unknown host RTA type: %d\n", rtattr->rta_type);
1836 break;
1837 }
1838 return 0;
1839}
1840
1841static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
1842 uint32_t rtattr_len)
1843{
1844 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1845 host_to_target_data_link_rtattr);
1846}
1847
1848static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
1849 uint32_t rtattr_len)
1850{
1851 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1852 host_to_target_data_addr_rtattr);
1853}
1854
1855static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
1856 uint32_t rtattr_len)
1857{
1858 return host_to_target_for_each_rtattr(rtattr, rtattr_len,
1859 host_to_target_data_route_rtattr);
1860}
1861
1862static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
1863{
1864 uint32_t nlmsg_len;
1865 struct ifinfomsg *ifi;
1866 struct ifaddrmsg *ifa;
1867 struct rtmsg *rtm;
1868
1869 nlmsg_len = nlh->nlmsg_len;
1870 switch (nlh->nlmsg_type) {
1871 case RTM_NEWLINK:
1872 case RTM_DELLINK:
1873 case RTM_GETLINK:
1874 ifi = NLMSG_DATA(nlh);
1875 ifi->ifi_type = tswap16(ifi->ifi_type);
1876 ifi->ifi_index = tswap32(ifi->ifi_index);
1877 ifi->ifi_flags = tswap32(ifi->ifi_flags);
1878 ifi->ifi_change = tswap32(ifi->ifi_change);
1879 host_to_target_link_rtattr(IFLA_RTA(ifi),
1880 nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
1881 break;
1882 case RTM_NEWADDR:
1883 case RTM_DELADDR:
1884 case RTM_GETADDR:
1885 ifa = NLMSG_DATA(nlh);
1886 ifa->ifa_index = tswap32(ifa->ifa_index);
1887 host_to_target_addr_rtattr(IFA_RTA(ifa),
1888 nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
1889 break;
1890 case RTM_NEWROUTE:
1891 case RTM_DELROUTE:
1892 case RTM_GETROUTE:
1893 rtm = NLMSG_DATA(nlh);
1894 rtm->rtm_flags = tswap32(rtm->rtm_flags);
1895 host_to_target_route_rtattr(RTM_RTA(rtm),
1896 nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
1897 break;
1898 default:
1899 return -TARGET_EINVAL;
1900 }
1901 return 0;
1902}
1903
1904static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
1905 size_t len)
1906{
1907 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
1908}
1909
1910static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
1911 size_t len,
1912 abi_long (*target_to_host_rtattr)
1913 (struct rtattr *))
1914{
1915 abi_long ret;
1916
1917 while (len >= sizeof(struct rtattr)) {
1918 if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
1919 tswap16(rtattr->rta_len) > len) {
1920 break;
1921 }
1922 rtattr->rta_len = tswap16(rtattr->rta_len);
1923 rtattr->rta_type = tswap16(rtattr->rta_type);
1924 ret = target_to_host_rtattr(rtattr);
1925 if (ret < 0) {
1926 return ret;
1927 }
1928 len -= RTA_ALIGN(rtattr->rta_len);
1929 rtattr = (struct rtattr *)(((char *)rtattr) +
1930 RTA_ALIGN(rtattr->rta_len));
1931 }
1932 return 0;
1933}
1934
1935static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
1936{
1937 switch (rtattr->rta_type) {
1938 default:
1939 gemu_log("Unknown target IFLA type: %d\n", rtattr->rta_type);
1940 break;
1941 }
1942 return 0;
1943}
1944
1945static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
1946{
1947 switch (rtattr->rta_type) {
1948 /* binary: depends on family type */
1949 case IFA_LOCAL:
1950 case IFA_ADDRESS:
1951 break;
1952 default:
1953 gemu_log("Unknown target IFA type: %d\n", rtattr->rta_type);
1954 break;
1955 }
1956 return 0;
1957}
1958
1959static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
1960{
1961 uint32_t *u32;
1962 switch (rtattr->rta_type) {
1963 /* binary: depends on family type */
1964 case RTA_DST:
1965 case RTA_SRC:
1966 case RTA_GATEWAY:
1967 break;
1968 /* u32 */
1969 case RTA_OIF:
1970 u32 = RTA_DATA(rtattr);
1971 *u32 = tswap32(*u32);
1972 break;
1973 default:
1974 gemu_log("Unknown target RTA type: %d\n", rtattr->rta_type);
1975 break;
1976 }
1977 return 0;
1978}
1979
1980static void target_to_host_link_rtattr(struct rtattr *rtattr,
1981 uint32_t rtattr_len)
1982{
1983 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1984 target_to_host_data_link_rtattr);
1985}
1986
1987static void target_to_host_addr_rtattr(struct rtattr *rtattr,
1988 uint32_t rtattr_len)
1989{
1990 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1991 target_to_host_data_addr_rtattr);
1992}
1993
1994static void target_to_host_route_rtattr(struct rtattr *rtattr,
1995 uint32_t rtattr_len)
1996{
1997 target_to_host_for_each_rtattr(rtattr, rtattr_len,
1998 target_to_host_data_route_rtattr);
1999}
2000
2001static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
2002{
2003 struct ifinfomsg *ifi;
2004 struct ifaddrmsg *ifa;
2005 struct rtmsg *rtm;
2006
2007 switch (nlh->nlmsg_type) {
2008 case RTM_GETLINK:
2009 break;
2010 case RTM_NEWLINK:
2011 case RTM_DELLINK:
2012 ifi = NLMSG_DATA(nlh);
2013 ifi->ifi_type = tswap16(ifi->ifi_type);
2014 ifi->ifi_index = tswap32(ifi->ifi_index);
2015 ifi->ifi_flags = tswap32(ifi->ifi_flags);
2016 ifi->ifi_change = tswap32(ifi->ifi_change);
2017 target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
2018 NLMSG_LENGTH(sizeof(*ifi)));
2019 break;
2020 case RTM_GETADDR:
2021 case RTM_NEWADDR:
2022 case RTM_DELADDR:
2023 ifa = NLMSG_DATA(nlh);
2024 ifa->ifa_index = tswap32(ifa->ifa_index);
2025 target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
2026 NLMSG_LENGTH(sizeof(*ifa)));
2027 break;
2028 case RTM_GETROUTE:
2029 break;
2030 case RTM_NEWROUTE:
2031 case RTM_DELROUTE:
2032 rtm = NLMSG_DATA(nlh);
2033 rtm->rtm_flags = tswap32(rtm->rtm_flags);
2034 target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
2035 NLMSG_LENGTH(sizeof(*rtm)));
2036 break;
2037 default:
2038 return -TARGET_EOPNOTSUPP;
2039 }
2040 return 0;
2041}
2042
2043static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
2044{
2045 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
2046}
575b22b1 2047#endif /* CONFIG_RTNETLINK */
6c5b5645 2048
5ce9bb59
LV		 2049static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
2050{
2051 switch (nlh->nlmsg_type) {
2052 default:
2053 gemu_log("Unknown host audit message type %d\n",
2054 nlh->nlmsg_type);
2055 return -TARGET_EINVAL;
2056 }
2057 return 0;
2058}
2059
2060static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
2061 size_t len)
2062{
2063 return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
2064}
2065
2066static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
2067{
2068 switch (nlh->nlmsg_type) {
2069 case AUDIT_USER:
2070 case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
2071 case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
2072 break;
2073 default:
2074 gemu_log("Unknown target audit message type %d\n",
2075 nlh->nlmsg_type);
2076 return -TARGET_EINVAL;
2077 }
2078
2079 return 0;
2080}
2081
2082static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
2083{
2084 return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
2085}
2086
0da46a6e 2087/* do_setsockopt() Must return target values and target errnos. */
992f48a0 2088static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 2089 abi_ulong optval_addr, socklen_t optlen)
7854b056 2090{
992f48a0 2091 abi_long ret;
32407103 2092 int val;
b975b83b 2093 struct ip_mreqn *ip_mreq;
6e3cb58f 2094 struct ip_mreq_source *ip_mreq_source;
3b46e624 2095
8853f86e
FB		 2096 switch(level) {
2097 case SOL_TCP:
7854b056 2098 /* TCP options all take an 'int' value. */
7854b056 2099 if (optlen < sizeof(uint32_t))
0da46a6e 2100 return -TARGET_EINVAL;
3b46e624 2101
2f619698
FB		 2102 if (get_user_u32(val, optval_addr))
2103 return -TARGET_EFAULT;
8853f86e
FB		 2104 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
2105 break;
2106 case SOL_IP:
2107 switch(optname) {
2efbe911
FB		 2108 case IP_TOS:
2109 case IP_TTL:
8853f86e 2110 case IP_HDRINCL:
2efbe911
FB		 2111 case IP_ROUTER_ALERT:
2112 case IP_RECVOPTS:
2113 case IP_RETOPTS:
2114 case IP_PKTINFO:
2115 case IP_MTU_DISCOVER:
2116 case IP_RECVERR:
2117 case IP_RECVTOS:
2118#ifdef IP_FREEBIND
2119 case IP_FREEBIND:
2120#endif
2121 case IP_MULTICAST_TTL:
2122 case IP_MULTICAST_LOOP:
8853f86e
FB		 2123 val = 0;
2124 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 2125 if (get_user_u32(val, optval_addr))
2126 return -TARGET_EFAULT;
8853f86e 2127 } else if (optlen >= 1) {
2f619698
FB		 2128 if (get_user_u8(val, optval_addr))
2129 return -TARGET_EFAULT;
8853f86e
FB		 2130 }
2131 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
2132 break;
b975b83b
LL		 2133 case IP_ADD_MEMBERSHIP:
2134 case IP_DROP_MEMBERSHIP:
2135 if (optlen < sizeof (struct target_ip_mreq) ||
2136 optlen > sizeof (struct target_ip_mreqn))
2137 return -TARGET_EINVAL;
2138
2139 ip_mreq = (struct ip_mreqn *) alloca(optlen);
2140 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
2141 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
2142 break;
2143
6e3cb58f
LL		 2144 case IP_BLOCK_SOURCE:
2145 case IP_UNBLOCK_SOURCE:
2146 case IP_ADD_SOURCE_MEMBERSHIP:
2147 case IP_DROP_SOURCE_MEMBERSHIP:
2148 if (optlen != sizeof (struct target_ip_mreq_source))
2149 return -TARGET_EINVAL;
2150
2151 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2152 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
2153 unlock_user (ip_mreq_source, optval_addr, 0);
2154 break;
2155
920394db
JH		 2156 default:
2157 goto unimplemented;
2158 }
2159 break;
0d78b3b5
LV		 2160 case SOL_IPV6:
2161 switch (optname) {
2162 case IPV6_MTU_DISCOVER:
2163 case IPV6_MTU:
2164 case IPV6_V6ONLY:
2165 case IPV6_RECVPKTINFO:
2166 val = 0;
2167 if (optlen < sizeof(uint32_t)) {
2168 return -TARGET_EINVAL;
2169 }
2170 if (get_user_u32(val, optval_addr)) {
2171 return -TARGET_EFAULT;
2172 }
2173 ret = get_errno(setsockopt(sockfd, level, optname,
2174 &val, sizeof(val)));
2175 break;
2176 default:
2177 goto unimplemented;
2178 }
2179 break;
920394db
JH		 2180 case SOL_RAW:
2181 switch (optname) {
2182 case ICMP_FILTER:
2183 /* struct icmp_filter takes an u32 value */
2184 if (optlen < sizeof(uint32_t)) {
2185 return -TARGET_EINVAL;
2186 }
2187
2188 if (get_user_u32(val, optval_addr)) {
2189 return -TARGET_EFAULT;
2190 }
2191 ret = get_errno(setsockopt(sockfd, level, optname,
2192 &val, sizeof(val)));
2193 break;
2194
8853f86e
FB		 2195 default:
2196 goto unimplemented;
2197 }
2198 break;
3532fa74 2199 case TARGET_SOL_SOCKET:
8853f86e 2200 switch (optname) {
1b09aeb9
LV		 2201 case TARGET_SO_RCVTIMEO:
2202 {
2203 struct timeval tv;
2204
2205 optname = SO_RCVTIMEO;
2206
2207set_timeout:
2208 if (optlen != sizeof(struct target_timeval)) {
2209 return -TARGET_EINVAL;
2210 }
2211
2212 if (copy_from_user_timeval(&tv, optval_addr)) {
2213 return -TARGET_EFAULT;
2214 }
2215
2216 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2217 &tv, sizeof(tv)));
2218 return ret;
2219 }
2220 case TARGET_SO_SNDTIMEO:
2221 optname = SO_SNDTIMEO;
2222 goto set_timeout;
f57d4192
LV		 2223 case TARGET_SO_ATTACH_FILTER:
2224 {
2225 struct target_sock_fprog *tfprog;
2226 struct target_sock_filter *tfilter;
2227 struct sock_fprog fprog;
2228 struct sock_filter *filter;
2229 int i;
2230
2231 if (optlen != sizeof(*tfprog)) {
2232 return -TARGET_EINVAL;
2233 }
2234 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
2235 return -TARGET_EFAULT;
2236 }
2237 if (!lock_user_struct(VERIFY_READ, tfilter,
2238 tswapal(tfprog->filter), 0)) {
2239 unlock_user_struct(tfprog, optval_addr, 1);
2240 return -TARGET_EFAULT;
2241 }
2242
2243 fprog.len = tswap16(tfprog->len);
0e173b24 2244 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 2245 if (filter == NULL) {
2246 unlock_user_struct(tfilter, tfprog->filter, 1);
2247 unlock_user_struct(tfprog, optval_addr, 1);
2248 return -TARGET_ENOMEM;
2249 }
2250 for (i = 0; i < fprog.len; i++) {
2251 filter[i].code = tswap16(tfilter[i].code);
2252 filter[i].jt = tfilter[i].jt;
2253 filter[i].jf = tfilter[i].jf;
2254 filter[i].k = tswap32(tfilter[i].k);
2255 }
2256 fprog.filter = filter;
2257
2258 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2259 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2260 g_free(filter);
f57d4192
LV		 2261
2262 unlock_user_struct(tfilter, tfprog->filter, 1);
2263 unlock_user_struct(tfprog, optval_addr, 1);
2264 return ret;
2265 }
451aaf68
JT		 2266 case TARGET_SO_BINDTODEVICE:
2267 {
2268 char *dev_ifname, *addr_ifname;
2269
2270 if (optlen > IFNAMSIZ - 1) {
2271 optlen = IFNAMSIZ - 1;
2272 }
2273 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2274 if (!dev_ifname) {
2275 return -TARGET_EFAULT;
2276 }
2277 optname = SO_BINDTODEVICE;
2278 addr_ifname = alloca(IFNAMSIZ);
2279 memcpy(addr_ifname, dev_ifname, optlen);
2280 addr_ifname[optlen] = 0;
fad6c58a
CG		 2281 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2282 addr_ifname, optlen));
451aaf68
JT		 2283 unlock_user (dev_ifname, optval_addr, 0);
2284 return ret;
2285 }
8853f86e 2286 /* Options with 'int' argument. */
3532fa74
FB		 2287 case TARGET_SO_DEBUG:
2288 optname = SO_DEBUG;
2289 break;
2290 case TARGET_SO_REUSEADDR:
2291 optname = SO_REUSEADDR;
2292 break;
2293 case TARGET_SO_TYPE:
2294 optname = SO_TYPE;
2295 break;
2296 case TARGET_SO_ERROR:
2297 optname = SO_ERROR;
2298 break;
2299 case TARGET_SO_DONTROUTE:
2300 optname = SO_DONTROUTE;
2301 break;
2302 case TARGET_SO_BROADCAST:
2303 optname = SO_BROADCAST;
2304 break;
2305 case TARGET_SO_SNDBUF:
2306 optname = SO_SNDBUF;
2307 break;
d79b6cc4
PB		 2308 case TARGET_SO_SNDBUFFORCE:
2309 optname = SO_SNDBUFFORCE;
2310 break;
3532fa74
FB		 2311 case TARGET_SO_RCVBUF:
2312 optname = SO_RCVBUF;
2313 break;
d79b6cc4
PB		 2314 case TARGET_SO_RCVBUFFORCE:
2315 optname = SO_RCVBUFFORCE;
2316 break;
3532fa74
FB		 2317 case TARGET_SO_KEEPALIVE:
2318 optname = SO_KEEPALIVE;
2319 break;
2320 case TARGET_SO_OOBINLINE:
2321 optname = SO_OOBINLINE;
2322 break;
2323 case TARGET_SO_NO_CHECK:
2324 optname = SO_NO_CHECK;
2325 break;
2326 case TARGET_SO_PRIORITY:
2327 optname = SO_PRIORITY;
2328 break;
5e83e8e3 2329#ifdef SO_BSDCOMPAT
3532fa74
FB		 2330 case TARGET_SO_BSDCOMPAT:
2331 optname = SO_BSDCOMPAT;
2332 break;
5e83e8e3 2333#endif
3532fa74
FB		 2334 case TARGET_SO_PASSCRED:
2335 optname = SO_PASSCRED;
2336 break;
82d0fe6b
PB		 2337 case TARGET_SO_PASSSEC:
2338 optname = SO_PASSSEC;
2339 break;
3532fa74
FB		 2340 case TARGET_SO_TIMESTAMP:
2341 optname = SO_TIMESTAMP;
2342 break;
2343 case TARGET_SO_RCVLOWAT:
2344 optname = SO_RCVLOWAT;
2345 break;
8853f86e
FB		 2346 break;
2347 default:
2348 goto unimplemented;
2349 }
3532fa74 2350 if (optlen < sizeof(uint32_t))
2f619698 2351 return -TARGET_EINVAL;
3532fa74 2352
2f619698
FB		 2353 if (get_user_u32(val, optval_addr))
2354 return -TARGET_EFAULT;
3532fa74 2355 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2356 break;
7854b056 2357 default:
8853f86e 2358 unimplemented:
b2bedb21 2359 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 2360 ret = -TARGET_ENOPROTOOPT;
7854b056 2361 }
8853f86e 2362 return ret;
7854b056
FB		 2363}
2364
0da46a6e 2365/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2366static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2367 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2368{
992f48a0 2369 abi_long ret;
b55266b5
BS		 2370 int len, val;
2371 socklen_t lv;
8853f86e
FB		 2372
2373 switch(level) {
3532fa74 2374 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2375 level = SOL_SOCKET;
2376 switch (optname) {
2377 /* These don't just return a single integer */
2378 case TARGET_SO_LINGER:
2379 case TARGET_SO_RCVTIMEO:
2380 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 2381 case TARGET_SO_PEERNAME:
2382 goto unimplemented;
583359a6
AP		 2383 case TARGET_SO_PEERCRED: {
2384 struct ucred cr;
2385 socklen_t crlen;
2386 struct target_ucred *tcr;
2387
2388 if (get_user_u32(len, optlen)) {
2389 return -TARGET_EFAULT;
2390 }
2391 if (len < 0) {
2392 return -TARGET_EINVAL;
2393 }
2394
2395 crlen = sizeof(cr);
2396 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2397 &cr, &crlen));
2398 if (ret < 0) {
2399 return ret;
2400 }
2401 if (len > crlen) {
2402 len = crlen;
2403 }
2404 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2405 return -TARGET_EFAULT;
2406 }
2407 __put_user(cr.pid, &tcr->pid);
2408 __put_user(cr.uid, &tcr->uid);
2409 __put_user(cr.gid, &tcr->gid);
2410 unlock_user_struct(tcr, optval_addr, 1);
2411 if (put_user_u32(len, optlen)) {
2412 return -TARGET_EFAULT;
2413 }
2414 break;
2415 }
f3b974cd
JL		 2416 /* Options with 'int' argument. */
2417 case TARGET_SO_DEBUG:
2418 optname = SO_DEBUG;
2419 goto int_case;
2420 case TARGET_SO_REUSEADDR:
2421 optname = SO_REUSEADDR;
2422 goto int_case;
2423 case TARGET_SO_TYPE:
2424 optname = SO_TYPE;
2425 goto int_case;
2426 case TARGET_SO_ERROR:
2427 optname = SO_ERROR;
2428 goto int_case;
2429 case TARGET_SO_DONTROUTE:
2430 optname = SO_DONTROUTE;
2431 goto int_case;
2432 case TARGET_SO_BROADCAST:
2433 optname = SO_BROADCAST;
2434 goto int_case;
2435 case TARGET_SO_SNDBUF:
2436 optname = SO_SNDBUF;
2437 goto int_case;
2438 case TARGET_SO_RCVBUF:
2439 optname = SO_RCVBUF;
2440 goto int_case;
2441 case TARGET_SO_KEEPALIVE:
2442 optname = SO_KEEPALIVE;
2443 goto int_case;
2444 case TARGET_SO_OOBINLINE:
2445 optname = SO_OOBINLINE;
2446 goto int_case;
2447 case TARGET_SO_NO_CHECK:
2448 optname = SO_NO_CHECK;
2449 goto int_case;
2450 case TARGET_SO_PRIORITY:
2451 optname = SO_PRIORITY;
2452 goto int_case;
2453#ifdef SO_BSDCOMPAT
2454 case TARGET_SO_BSDCOMPAT:
2455 optname = SO_BSDCOMPAT;
2456 goto int_case;
2457#endif
2458 case TARGET_SO_PASSCRED:
2459 optname = SO_PASSCRED;
2460 goto int_case;
2461 case TARGET_SO_TIMESTAMP:
2462 optname = SO_TIMESTAMP;
2463 goto int_case;
2464 case TARGET_SO_RCVLOWAT:
2465 optname = SO_RCVLOWAT;
2466 goto int_case;
aec1ca41
PB		 2467 case TARGET_SO_ACCEPTCONN:
2468 optname = SO_ACCEPTCONN;
2469 goto int_case;
8853f86e 2470 default:
2efbe911
FB		 2471 goto int_case;
2472 }
2473 break;
2474 case SOL_TCP:
2475 /* TCP options all take an 'int' value. */
2476 int_case:
2f619698
FB		 2477 if (get_user_u32(len, optlen))
2478 return -TARGET_EFAULT;
2efbe911 2479 if (len < 0)
0da46a6e 2480 return -TARGET_EINVAL;
73160d95 2481 lv = sizeof(lv);
2efbe911
FB		 2482 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2483 if (ret < 0)
2484 return ret;
8289d112
PB		 2485 if (optname == SO_TYPE) {
2486 val = host_to_target_sock_type(val);
2487 }
2efbe911
FB		 2488 if (len > lv)
2489 len = lv;
2f619698
FB		 2490 if (len == 4) {
2491 if (put_user_u32(val, optval_addr))
2492 return -TARGET_EFAULT;
2493 } else {
2494 if (put_user_u8(val, optval_addr))
2495 return -TARGET_EFAULT;
f3b974cd 2496 }
2f619698
FB		 2497 if (put_user_u32(len, optlen))
2498 return -TARGET_EFAULT;
2efbe911
FB		 2499 break;
2500 case SOL_IP:
2501 switch(optname) {
2502 case IP_TOS:
2503 case IP_TTL:
2504 case IP_HDRINCL:
2505 case IP_ROUTER_ALERT:
2506 case IP_RECVOPTS:
2507 case IP_RETOPTS:
2508 case IP_PKTINFO:
2509 case IP_MTU_DISCOVER:
2510 case IP_RECVERR:
2511 case IP_RECVTOS:
2512#ifdef IP_FREEBIND
2513 case IP_FREEBIND:
2514#endif
2515 case IP_MULTICAST_TTL:
2516 case IP_MULTICAST_LOOP:
2f619698
FB		 2517 if (get_user_u32(len, optlen))
2518 return -TARGET_EFAULT;
8853f86e 2519 if (len < 0)
0da46a6e 2520 return -TARGET_EINVAL;
73160d95 2521 lv = sizeof(lv);
8853f86e
FB		 2522 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2523 if (ret < 0)
2524 return ret;
2efbe911 2525 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2526 len = 1;
2f619698
FB		 2527 if (put_user_u32(len, optlen)
2528 || put_user_u8(val, optval_addr))
2529 return -TARGET_EFAULT;
2efbe911 2530 } else {
2efbe911
FB		 2531 if (len > sizeof(int))
2532 len = sizeof(int);
2f619698
FB		 2533 if (put_user_u32(len, optlen)
2534 || put_user_u32(val, optval_addr))
2535 return -TARGET_EFAULT;
2efbe911 2536 }
8853f86e 2537 break;
2efbe911 2538 default:
c02f499e
TS		 2539 ret = -TARGET_ENOPROTOOPT;
2540 break;
8853f86e
FB		 2541 }
2542 break;
2543 default:
2544 unimplemented:
2545 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2546 level, optname);
c02f499e 2547 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 2548 break;
2549 }
2550 return ret;
7854b056
FB		 2551}
2552
f287b2c2
RH		 2553static struct iovec *lock_iovec(int type, abi_ulong target_addr,
2554 int count, int copy)
53a5960a
PB		 2555{
2556 struct target_iovec *target_vec;
f287b2c2
RH		 2557 struct iovec *vec;
2558 abi_ulong total_len, max_len;
d732dcb4 2559 int i;
501bb4b0 2560 int err = 0;
29560a6c 2561 bool bad_address = false;
53a5960a 2562
f287b2c2
RH		 2563 if (count == 0) {
2564 errno = 0;
2565 return NULL;
2566 }
dfae8e00 2567 if (count < 0 || count > IOV_MAX) {
f287b2c2
RH		 2568 errno = EINVAL;
2569 return NULL;
2570 }
2571
0e173b24 2572 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 2573 if (vec == NULL) {
2574 errno = ENOMEM;
2575 return NULL;
2576 }
2577
2578 target_vec = lock_user(VERIFY_READ, target_addr,
2579 count * sizeof(struct target_iovec), 1);
2580 if (target_vec == NULL) {
501bb4b0 2581 err = EFAULT;
f287b2c2
RH		 2582 goto fail2;
2583 }
2584
2585 /* ??? If host page size > target page size, this will result in a
2586 value larger than what we can actually support. */
2587 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2588 total_len = 0;
2589
2590 for (i = 0; i < count; i++) {
2591 abi_ulong base = tswapal(target_vec[i].iov_base);
2592 abi_long len = tswapal(target_vec[i].iov_len);
2593
2594 if (len < 0) {
501bb4b0 2595 err = EINVAL;
f287b2c2
RH		 2596 goto fail;
2597 } else if (len == 0) {
2598 /* Zero length pointer is ignored. */
2599 vec[i].iov_base = 0;
41df8411 2600 } else {
f287b2c2 2601 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 2602 /* If the first buffer pointer is bad, this is a fault. But
2603 * subsequent bad buffers will result in a partial write; this
2604 * is realized by filling the vector with null pointers and
2605 * zero lengths. */
f287b2c2 2606 if (!vec[i].iov_base) {
29560a6c
TM		 2607 if (i == 0) {
2608 err = EFAULT;
2609 goto fail;
2610 } else {
2611 bad_address = true;
2612 }
2613 }
2614 if (bad_address) {
2615 len = 0;
f287b2c2
RH		 2616 }
2617 if (len > max_len - total_len) {
2618 len = max_len - total_len;
2619 }
41df8411 2620 }
f287b2c2
RH		 2621 vec[i].iov_len = len;
2622 total_len += len;
579a97f7 2623 }
f287b2c2
RH		 2624
2625 unlock_user(target_vec, target_addr, 0);
2626 return vec;
2627
2628 fail:
7eff518b
CG		 2629 while (--i >= 0) {
2630 if (tswapal(target_vec[i].iov_len) > 0) {
2631 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2632 }
2633 }
f287b2c2 2634 unlock_user(target_vec, target_addr, 0);
501bb4b0 2635 fail2:
0e173b24 2636 g_free(vec);
501bb4b0 2637 errno = err;
f287b2c2 2638 return NULL;
53a5960a
PB		 2639}
2640
f287b2c2
RH		 2641static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
2642 int count, int copy)
53a5960a
PB		 2643{
2644 struct target_iovec *target_vec;
53a5960a
PB		 2645 int i;
2646
f287b2c2
RH		 2647 target_vec = lock_user(VERIFY_READ, target_addr,
2648 count * sizeof(struct target_iovec), 1);
2649 if (target_vec) {
2650 for (i = 0; i < count; i++) {
2651 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 2652 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 2653 if (len < 0) {
2654 break;
2655 }
d732dcb4
AZ		 2656 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2657 }
f287b2c2 2658 unlock_user(target_vec, target_addr, 0);
53a5960a 2659 }
579a97f7 2660
0e173b24 2661 g_free(vec);
53a5960a
PB		 2662}
2663
53d09b76 2664static inline int target_to_host_sock_type(int *type)
3532fa74 2665{
f651e6ae
PJ		 2666 int host_type = 0;
2667 int target_type = *type;
2668
2669 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 2670 case TARGET_SOCK_DGRAM:
f651e6ae 2671 host_type = SOCK_DGRAM;
3532fa74
FB		 2672 break;
2673 case TARGET_SOCK_STREAM:
f651e6ae 2674 host_type = SOCK_STREAM;
3532fa74 2675 break;
f651e6ae
PJ		 2676 default:
2677 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 2678 break;
2679 }
f651e6ae 2680 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 2681#if defined(SOCK_CLOEXEC)
f651e6ae 2682 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 2683#else
2684 return -TARGET_EINVAL;
2685#endif
f651e6ae
PJ		 2686 }
2687 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 2688#if defined(SOCK_NONBLOCK)
f651e6ae 2689 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 2690#elif !defined(O_NONBLOCK)
2691 return -TARGET_EINVAL;
2692#endif
f651e6ae
PJ		 2693 }
2694 *type = host_type;
53d09b76
EI		 2695 return 0;
2696}
2697
2698/* Try to emulate socket type flags after socket creation. */
2699static int sock_flags_fixup(int fd, int target_type)
2700{
2701#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2702 if (target_type & TARGET_SOCK_NONBLOCK) {
2703 int flags = fcntl(fd, F_GETFL);
2704 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2705 close(fd);
2706 return -TARGET_EINVAL;
2707 }
2708 }
2709#endif
2710 return fd;
f651e6ae
PJ		 2711}
2712
0cf22722
LV		 2713static abi_long packet_target_to_host_sockaddr(void *host_addr,
2714 abi_ulong target_addr,
2715 socklen_t len)
2716{
2717 struct sockaddr *addr = host_addr;
2718 struct target_sockaddr *target_saddr;
2719
2720 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
2721 if (!target_saddr) {
2722 return -TARGET_EFAULT;
2723 }
2724
2725 memcpy(addr, target_saddr, len);
2726 addr->sa_family = tswap16(target_saddr->sa_family);
2727 /* spkt_protocol is big-endian */
2728
2729 unlock_user(target_saddr, target_addr, 0);
2730 return 0;
2731}
2732
2733static TargetFdTrans target_packet_trans = {
2734 .target_to_host_addr = packet_target_to_host_sockaddr,
2735};
2736
575b22b1 2737#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2738static abi_long netlink_route_target_to_host(void *buf, size_t len)
2739{
2740 return target_to_host_nlmsg_route(buf, len);
2741}
2742
2743static abi_long netlink_route_host_to_target(void *buf, size_t len)
2744{
2745 return host_to_target_nlmsg_route(buf, len);
2746}
2747
2748static TargetFdTrans target_netlink_route_trans = {
2749 .target_to_host_data = netlink_route_target_to_host,
2750 .host_to_target_data = netlink_route_host_to_target,
2751};
575b22b1 2752#endif /* CONFIG_RTNETLINK */
6c5b5645 2753
5ce9bb59
LV		 2754static abi_long netlink_audit_target_to_host(void *buf, size_t len)
2755{
2756 return target_to_host_nlmsg_audit(buf, len);
2757}
2758
2759static abi_long netlink_audit_host_to_target(void *buf, size_t len)
2760{
2761 return host_to_target_nlmsg_audit(buf, len);
2762}
2763
2764static TargetFdTrans target_netlink_audit_trans = {
2765 .target_to_host_data = netlink_audit_target_to_host,
2766 .host_to_target_data = netlink_audit_host_to_target,
2767};
2768
f651e6ae
PJ		 2769/* do_socket() Must return target values and target errnos. */
2770static abi_long do_socket(int domain, int type, int protocol)
2771{
53d09b76
EI		 2772 int target_type = type;
2773 int ret;
2774
2775 ret = target_to_host_sock_type(&type);
2776 if (ret) {
2777 return ret;
2778 }
f651e6ae 2779
575b22b1
LV		 2780 if (domain == PF_NETLINK && !(
2781#ifdef CONFIG_RTNETLINK
2782 protocol == NETLINK_ROUTE ||
2783#endif
2784 protocol == NETLINK_KOBJECT_UEVENT ||
2785 protocol == NETLINK_AUDIT)) {
6c5b5645
LV		 2786 return -EPFNOSUPPORT;
2787 }
ff626f2d
LV		 2788
2789 if (domain == AF_PACKET ||
2790 (domain == AF_INET && type == SOCK_PACKET)) {
2791 protocol = tswap16(protocol);
2792 }
2793
53d09b76
EI		 2794 ret = get_errno(socket(domain, type, protocol));
2795 if (ret >= 0) {
2796 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 2797 if (type == SOCK_PACKET) {
2798 /* Manage an obsolete case :
2799 * if socket type is SOCK_PACKET, bind by name
2800 */
2801 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 2802 } else if (domain == PF_NETLINK) {
2803 switch (protocol) {
575b22b1 2804#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2805 case NETLINK_ROUTE:
2806 fd_trans_register(ret, &target_netlink_route_trans);
2807 break;
575b22b1 2808#endif
b265620b
LV		 2809 case NETLINK_KOBJECT_UEVENT:
2810 /* nothing to do: messages are strings */
2811 break;
5ce9bb59
LV		 2812 case NETLINK_AUDIT:
2813 fd_trans_register(ret, &target_netlink_audit_trans);
2814 break;
6c5b5645
LV		 2815 default:
2816 g_assert_not_reached();
2817 }
0cf22722 2818 }
53d09b76
EI		 2819 }
2820 return ret;
3532fa74
FB		 2821}
2822
0da46a6e 2823/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 2824static abi_long do_bind(int sockfd, abi_ulong target_addr,
2825 socklen_t addrlen)
3532fa74 2826{
8f7aeaf6 2827 void *addr;
917507b0 2828 abi_long ret;
8f7aeaf6 2829
38724253 2830 if ((int)addrlen < 0) {
8f7aeaf6 2831 return -TARGET_EINVAL;
38724253 2832 }
8f7aeaf6 2833
607175e0 2834 addr = alloca(addrlen+1);
3b46e624 2835
7b36f782 2836 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2837 if (ret)
2838 return ret;
2839
3532fa74
FB		 2840 return get_errno(bind(sockfd, addr, addrlen));
2841}
2842
0da46a6e 2843/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 2844static abi_long do_connect(int sockfd, abi_ulong target_addr,
2845 socklen_t addrlen)
3532fa74 2846{
8f7aeaf6 2847 void *addr;
917507b0 2848 abi_long ret;
8f7aeaf6 2849
38724253 2850 if ((int)addrlen < 0) {
8f7aeaf6 2851 return -TARGET_EINVAL;
38724253 2852 }
8f7aeaf6 2853
2dd08dfd 2854 addr = alloca(addrlen+1);
3b46e624 2855
7b36f782 2856 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2857 if (ret)
2858 return ret;
2859
3532fa74
FB		 2860 return get_errno(connect(sockfd, addr, addrlen));
2861}
2862
f19e00d7
AG		 2863/* do_sendrecvmsg_locked() Must return target values and target errnos. */
2864static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2865 int flags, int send)
3532fa74 2866{
6de645c7 2867 abi_long ret, len;
3532fa74
FB		 2868 struct msghdr msg;
2869 int count;
2870 struct iovec *vec;
992f48a0 2871 abi_ulong target_vec;
3532fa74 2872
3532fa74
FB		 2873 if (msgp->msg_name) {
2874 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 2875 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 2876 ret = target_to_host_sockaddr(fd, msg.msg_name,
2877 tswapal(msgp->msg_name),
2878 msg.msg_namelen);
917507b0 2879 if (ret) {
f287b2c2 2880 goto out2;
917507b0 2881 }
3532fa74
FB		 2882 } else {
2883 msg.msg_name = NULL;
2884 msg.msg_namelen = 0;
2885 }
cbb21eed 2886 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74
FB		 2887 msg.msg_control = alloca(msg.msg_controllen);
2888 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 2889
cbb21eed 2890 count = tswapal(msgp->msg_iovlen);
cbb21eed 2891 target_vec = tswapal(msgp->msg_iov);
f287b2c2
RH		 2892 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2893 target_vec, count, send);
2894 if (vec == NULL) {
2895 ret = -host_to_target_errno(errno);
2896 goto out2;
2897 }
3532fa74
FB		 2898 msg.msg_iovlen = count;
2899 msg.msg_iov = vec;
3b46e624 2900
3532fa74 2901 if (send) {
6c5b5645
LV		 2902 if (fd_trans_target_to_host_data(fd)) {
2903 ret = fd_trans_target_to_host_data(fd)(msg.msg_iov->iov_base,
2904 msg.msg_iov->iov_len);
2905 } else {
2906 ret = target_to_host_cmsg(&msg, msgp);
2907 }
2908 if (ret == 0) {
5a4a898d 2909 ret = get_errno(sendmsg(fd, &msg, flags));
6c5b5645 2910 }
3532fa74
FB		 2911 } else {
2912 ret = get_errno(recvmsg(fd, &msg, flags));
6de645c7
AZ		 2913 if (!is_error(ret)) {
2914 len = ret;
6c5b5645
LV		 2915 if (fd_trans_host_to_target_data(fd)) {
2916 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2917 msg.msg_iov->iov_len);
2918 } else {
2919 ret = host_to_target_cmsg(msgp, &msg);
2920 }
ca619067
JH		 2921 if (!is_error(ret)) {
2922 msgp->msg_namelen = tswap32(msg.msg_namelen);
2923 if (msg.msg_name != NULL) {
2924 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2925 msg.msg_name, msg.msg_namelen);
2926 if (ret) {
2927 goto out;
2928 }
2929 }
2930
6de645c7 2931 ret = len;
ca619067 2932 }
6de645c7 2933 }
3532fa74 2934 }
ca619067
JH		 2935
2936out:
3532fa74 2937 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 2938out2:
f19e00d7
AG		 2939 return ret;
2940}
2941
2942static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2943 int flags, int send)
2944{
2945 abi_long ret;
2946 struct target_msghdr *msgp;
2947
2948 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2949 msgp,
2950 target_msg,
2951 send ? 1 : 0)) {
2952 return -TARGET_EFAULT;
2953 }
2954 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 2955 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 2956 return ret;
2957}
2958
f19e00d7
AG		 2959/* We don't rely on the C library to have sendmmsg/recvmmsg support,
2960 * so it might not have this *mmsg-specific flag either.
2961 */
2962#ifndef MSG_WAITFORONE
2963#define MSG_WAITFORONE 0x10000
2964#endif
2965
2966static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2967 unsigned int vlen, unsigned int flags,
2968 int send)
2969{
2970 struct target_mmsghdr *mmsgp;
2971 abi_long ret = 0;
2972 int i;
2973
2974 if (vlen > UIO_MAXIOV) {
2975 vlen = UIO_MAXIOV;
2976 }
2977
2978 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2979 if (!mmsgp) {
2980 return -TARGET_EFAULT;
2981 }
2982
2983 for (i = 0; i < vlen; i++) {
2984 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2985 if (is_error(ret)) {
2986 break;
2987 }
2988 mmsgp[i].msg_len = tswap32(ret);
2989 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2990 if (flags & MSG_WAITFORONE) {
2991 flags |= MSG_DONTWAIT;
2992 }
2993 }
2994
2995 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2996
2997 /* Return number of datagrams sent if we sent any at all;
2998 * otherwise return the error.
2999 */
3000 if (i) {
3001 return i;
3002 }
3003 return ret;
3004}
f19e00d7 3005
a94b4987
PM		 3006/* If we don't have a system accept4() then just call accept.
3007 * The callsites to do_accept4() will ensure that they don't
3008 * pass a non-zero flags argument in this config.
3009 */
3010#ifndef CONFIG_ACCEPT4
3011static inline int accept4(int sockfd, struct sockaddr *addr,
3012 socklen_t *addrlen, int flags)
3013{
3014 assert(flags == 0);
3015 return accept(sockfd, addr, addrlen);
3016}
3017#endif
3018
3019/* do_accept4() Must return target values and target errnos. */
3020static abi_long do_accept4(int fd, abi_ulong target_addr,
3021 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 3022{
2f619698
FB		 3023 socklen_t addrlen;
3024 void *addr;
992f48a0 3025 abi_long ret;
d25295d4
PJ		 3026 int host_flags;
3027
3028 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 3029
a94b4987 3030 if (target_addr == 0) {
d25295d4 3031 return get_errno(accept4(fd, NULL, NULL, host_flags));
a94b4987 3032 }
917507b0
AP		 3033
3034 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 3035 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 3036 return -TARGET_EINVAL;
2f619698 3037
38724253 3038 if ((int)addrlen < 0) {
8f7aeaf6 3039 return -TARGET_EINVAL;
38724253 3040 }
8f7aeaf6 3041
917507b0
AP		 3042 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3043 return -TARGET_EINVAL;
3044
2f619698
FB		 3045 addr = alloca(addrlen);
3046
d25295d4 3047 ret = get_errno(accept4(fd, addr, &addrlen, host_flags));
1be9e1dc
PB		 3048 if (!is_error(ret)) {
3049 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3050 if (put_user_u32(addrlen, target_addrlen_addr))
3051 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3052 }
3053 return ret;
3054}
3055
0da46a6e 3056/* do_getpeername() Must return target values and target errnos. */
992f48a0 3057static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 3058 abi_ulong target_addrlen_addr)
1be9e1dc 3059{
2f619698
FB		 3060 socklen_t addrlen;
3061 void *addr;
992f48a0 3062 abi_long ret;
1be9e1dc 3063
2f619698
FB		 3064 if (get_user_u32(addrlen, target_addrlen_addr))
3065 return -TARGET_EFAULT;
3066
38724253 3067 if ((int)addrlen < 0) {
8f7aeaf6 3068 return -TARGET_EINVAL;
38724253 3069 }
8f7aeaf6 3070
917507b0
AP		 3071 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3072 return -TARGET_EFAULT;
3073
2f619698
FB		 3074 addr = alloca(addrlen);
3075
1be9e1dc
PB		 3076 ret = get_errno(getpeername(fd, addr, &addrlen));
3077 if (!is_error(ret)) {
3078 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3079 if (put_user_u32(addrlen, target_addrlen_addr))
3080 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3081 }
3082 return ret;
3083}
3084
0da46a6e 3085/* do_getsockname() Must return target values and target errnos. */
992f48a0 3086static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 3087 abi_ulong target_addrlen_addr)
1be9e1dc 3088{
2f619698
FB		 3089 socklen_t addrlen;
3090 void *addr;
992f48a0 3091 abi_long ret;
1be9e1dc 3092
2f619698
FB		 3093 if (get_user_u32(addrlen, target_addrlen_addr))
3094 return -TARGET_EFAULT;
3095
38724253 3096 if ((int)addrlen < 0) {
8f7aeaf6 3097 return -TARGET_EINVAL;
38724253 3098 }
8f7aeaf6 3099
917507b0
AP		 3100 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
3101 return -TARGET_EFAULT;
3102
2f619698
FB		 3103 addr = alloca(addrlen);
3104
1be9e1dc
PB		 3105 ret = get_errno(getsockname(fd, addr, &addrlen));
3106 if (!is_error(ret)) {
3107 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3108 if (put_user_u32(addrlen, target_addrlen_addr))
3109 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3110 }
3111 return ret;
3112}
3113
0da46a6e 3114/* do_socketpair() Must return target values and target errnos. */
992f48a0 3115static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 3116 abi_ulong target_tab_addr)
1be9e1dc
PB		 3117{
3118 int tab[2];
992f48a0 3119 abi_long ret;
1be9e1dc 3120
f651e6ae
PJ		 3121 target_to_host_sock_type(&type);
3122
1be9e1dc
PB		 3123 ret = get_errno(socketpair(domain, type, protocol, tab));
3124 if (!is_error(ret)) {
2f619698
FB		 3125 if (put_user_s32(tab[0], target_tab_addr)
3126 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
3127 ret = -TARGET_EFAULT;
1be9e1dc
PB		 3128 }
3129 return ret;
3130}
3131
0da46a6e 3132/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 3133static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
3134 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 3135{
3136 void *addr;
3137 void *host_msg;
992f48a0 3138 abi_long ret;
1be9e1dc 3139
38724253 3140 if ((int)addrlen < 0) {
8f7aeaf6 3141 return -TARGET_EINVAL;
38724253 3142 }
8f7aeaf6 3143
579a97f7
FB		 3144 host_msg = lock_user(VERIFY_READ, msg, len, 1);
3145 if (!host_msg)
3146 return -TARGET_EFAULT;
6c5b5645
LV		 3147 if (fd_trans_target_to_host_data(fd)) {
3148 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
3149 if (ret < 0) {
3150 unlock_user(host_msg, msg, 0);
3151 return ret;
3152 }
3153 }
1be9e1dc 3154 if (target_addr) {
2dd08dfd 3155 addr = alloca(addrlen+1);
7b36f782 3156 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0
AP		 3157 if (ret) {
3158 unlock_user(host_msg, msg, 0);
3159 return ret;
3160 }
1be9e1dc
PB		 3161 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
3162 } else {
3163 ret = get_errno(send(fd, host_msg, len, flags));
3164 }
3165 unlock_user(host_msg, msg, 0);
3166 return ret;
3167}
3168
0da46a6e 3169/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3170static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3171 abi_ulong target_addr,
3172 abi_ulong target_addrlen)
1be9e1dc
PB		 3173{
3174 socklen_t addrlen;
3175 void *addr;
3176 void *host_msg;
992f48a0 3177 abi_long ret;
1be9e1dc 3178
579a97f7
FB		 3179 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3180 if (!host_msg)
3181 return -TARGET_EFAULT;
1be9e1dc 3182 if (target_addr) {
2f619698
FB		 3183 if (get_user_u32(addrlen, target_addrlen)) {
3184 ret = -TARGET_EFAULT;
3185 goto fail;
3186 }
38724253 3187 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3188 ret = -TARGET_EINVAL;
3189 goto fail;
3190 }
1be9e1dc
PB		 3191 addr = alloca(addrlen);
3192 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
3193 } else {
3194 addr = NULL; /* To keep compiler quiet. */
00aa0040 3195 ret = get_errno(qemu_recv(fd, host_msg, len, flags));
1be9e1dc
PB		 3196 }
3197 if (!is_error(ret)) {
3198 if (target_addr) {
3199 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3200 if (put_user_u32(addrlen, target_addrlen)) {
3201 ret = -TARGET_EFAULT;
3202 goto fail;
3203 }
1be9e1dc
PB		 3204 }
3205 unlock_user(host_msg, msg, len);
3206 } else {
2f619698 3207fail:
1be9e1dc
PB		 3208 unlock_user(host_msg, msg, 0);
3209 }
3210 return ret;
3211}
3212
32407103 3213#ifdef TARGET_NR_socketcall
0da46a6e 3214/* do_socketcall() Must return target values and target errnos. */
992f48a0 3215static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3216{
62dc90c6
MT		 3217 static const unsigned ac[] = { /* number of arguments per call */
3218 [SOCKOP_socket] = 3, /* domain, type, protocol */
3219 [SOCKOP_bind] = 3, /* sockfd, addr, addrlen */
3220 [SOCKOP_connect] = 3, /* sockfd, addr, addrlen */
3221 [SOCKOP_listen] = 2, /* sockfd, backlog */
3222 [SOCKOP_accept] = 3, /* sockfd, addr, addrlen */
3223 [SOCKOP_accept4] = 4, /* sockfd, addr, addrlen, flags */
3224 [SOCKOP_getsockname] = 3, /* sockfd, addr, addrlen */
3225 [SOCKOP_getpeername] = 3, /* sockfd, addr, addrlen */
3226 [SOCKOP_socketpair] = 4, /* domain, type, protocol, tab */
3227 [SOCKOP_send] = 4, /* sockfd, msg, len, flags */
3228 [SOCKOP_recv] = 4, /* sockfd, msg, len, flags */
3229 [SOCKOP_sendto] = 6, /* sockfd, msg, len, flags, addr, addrlen */
3230 [SOCKOP_recvfrom] = 6, /* sockfd, msg, len, flags, addr, addrlen */
3231 [SOCKOP_shutdown] = 2, /* sockfd, how */
3232 [SOCKOP_sendmsg] = 3, /* sockfd, msg, flags */
3233 [SOCKOP_recvmsg] = 3, /* sockfd, msg, flags */
5a53dc50
JPAG		 3234 [SOCKOP_sendmmsg] = 4, /* sockfd, msgvec, vlen, flags */
3235 [SOCKOP_recvmmsg] = 4, /* sockfd, msgvec, vlen, flags */
62dc90c6
MT		 3236 [SOCKOP_setsockopt] = 5, /* sockfd, level, optname, optval, optlen */
3237 [SOCKOP_getsockopt] = 5, /* sockfd, level, optname, optval, optlen */
3238 };
3239 abi_long a[6]; /* max 6 args */
3240
3241 /* first, collect the arguments in a[] according to ac[] */
3242 if (num >= 0 && num < ARRAY_SIZE(ac)) {
3243 unsigned i;
3244 assert(ARRAY_SIZE(a) >= ac[num]); /* ensure we have space for args */
3245 for (i = 0; i < ac[num]; ++i) {
3246 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
b9d36eb2
AH		 3247 return -TARGET_EFAULT;
3248 }
31e31b8a 3249 }
62dc90c6 3250 }
7854b056 3251
62dc90c6
MT		 3252 /* now when we have the args, actually handle the call */
3253 switch (num) {
3254 case SOCKOP_socket: /* domain, type, protocol */
3255 return do_socket(a[0], a[1], a[2]);
3256 case SOCKOP_bind: /* sockfd, addr, addrlen */
3257 return do_bind(a[0], a[1], a[2]);
3258 case SOCKOP_connect: /* sockfd, addr, addrlen */
3259 return do_connect(a[0], a[1], a[2]);
3260 case SOCKOP_listen: /* sockfd, backlog */
3261 return get_errno(listen(a[0], a[1]));
3262 case SOCKOP_accept: /* sockfd, addr, addrlen */
3263 return do_accept4(a[0], a[1], a[2], 0);
3264 case SOCKOP_accept4: /* sockfd, addr, addrlen, flags */
3265 return do_accept4(a[0], a[1], a[2], a[3]);
3266 case SOCKOP_getsockname: /* sockfd, addr, addrlen */
3267 return do_getsockname(a[0], a[1], a[2]);
3268 case SOCKOP_getpeername: /* sockfd, addr, addrlen */
3269 return do_getpeername(a[0], a[1], a[2]);
3270 case SOCKOP_socketpair: /* domain, type, protocol, tab */
3271 return do_socketpair(a[0], a[1], a[2], a[3]);
3272 case SOCKOP_send: /* sockfd, msg, len, flags */
3273 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
3274 case SOCKOP_recv: /* sockfd, msg, len, flags */
3275 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
3276 case SOCKOP_sendto: /* sockfd, msg, len, flags, addr, addrlen */
3277 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
3278 case SOCKOP_recvfrom: /* sockfd, msg, len, flags, addr, addrlen */
3279 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
3280 case SOCKOP_shutdown: /* sockfd, how */
3281 return get_errno(shutdown(a[0], a[1]));
3282 case SOCKOP_sendmsg: /* sockfd, msg, flags */
3283 return do_sendrecvmsg(a[0], a[1], a[2], 1);
3284 case SOCKOP_recvmsg: /* sockfd, msg, flags */
3285 return do_sendrecvmsg(a[0], a[1], a[2], 0);
5a53dc50
JPAG		 3286 case SOCKOP_sendmmsg: /* sockfd, msgvec, vlen, flags */
3287 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
3288 case SOCKOP_recvmmsg: /* sockfd, msgvec, vlen, flags */
3289 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
62dc90c6
MT		 3290 case SOCKOP_setsockopt: /* sockfd, level, optname, optval, optlen */
3291 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3292 case SOCKOP_getsockopt: /* sockfd, level, optname, optval, optlen */
3293 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
31e31b8a
FB		 3294 default:
3295 gemu_log("Unsupported socketcall: %d\n", num);
62dc90c6 3296 return -TARGET_ENOSYS;
31e31b8a 3297 }
31e31b8a 3298}
32407103 3299#endif
31e31b8a 3300
8853f86e
FB		 3301#define N_SHM_REGIONS 32
3302
3303static struct shm_region {
b6e17875
PM		 3304 abi_ulong start;
3305 abi_ulong size;
3306 bool in_use;
8853f86e
FB		 3307} shm_regions[N_SHM_REGIONS];
3308
3eb6b044
TS		 3309struct target_semid_ds
3310{
3311 struct target_ipc_perm sem_perm;
992f48a0 3312 abi_ulong sem_otime;
03527344 3313#if !defined(TARGET_PPC64)
992f48a0 3314 abi_ulong __unused1;
03527344 3315#endif
992f48a0 3316 abi_ulong sem_ctime;
03527344 3317#if !defined(TARGET_PPC64)
992f48a0 3318 abi_ulong __unused2;
03527344 3319#endif
992f48a0
BS		 3320 abi_ulong sem_nsems;
3321 abi_ulong __unused3;
3322 abi_ulong __unused4;
3eb6b044
TS		 3323};
3324
579a97f7
FB		 3325static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3326 abi_ulong target_addr)
3eb6b044
TS		 3327{
3328 struct target_ipc_perm *target_ip;
3329 struct target_semid_ds *target_sd;
3330
579a97f7
FB		 3331 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3332 return -TARGET_EFAULT;
e8bbe36c 3333 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3334 host_ip->__key = tswap32(target_ip->__key);
3335 host_ip->uid = tswap32(target_ip->uid);
3336 host_ip->gid = tswap32(target_ip->gid);
3337 host_ip->cuid = tswap32(target_ip->cuid);
3338 host_ip->cgid = tswap32(target_ip->cgid);
3339#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3340 host_ip->mode = tswap32(target_ip->mode);
3341#else
cbb21eed 3342 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3343#endif
3344#if defined(TARGET_PPC)
3345 host_ip->__seq = tswap32(target_ip->__seq);
3346#else
3347 host_ip->__seq = tswap16(target_ip->__seq);
3348#endif
3eb6b044 3349 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3350 return 0;
3eb6b044
TS		 3351}
3352
579a97f7
FB		 3353static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3354 struct ipc_perm *host_ip)
3eb6b044
TS		 3355{
3356 struct target_ipc_perm *target_ip;
3357 struct target_semid_ds *target_sd;
3358
579a97f7
FB		 3359 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3360 return -TARGET_EFAULT;
3eb6b044 3361 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3362 target_ip->__key = tswap32(host_ip->__key);
3363 target_ip->uid = tswap32(host_ip->uid);
3364 target_ip->gid = tswap32(host_ip->gid);
3365 target_ip->cuid = tswap32(host_ip->cuid);
3366 target_ip->cgid = tswap32(host_ip->cgid);
3367#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3368 target_ip->mode = tswap32(host_ip->mode);
3369#else
cbb21eed 3370 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3371#endif
3372#if defined(TARGET_PPC)
3373 target_ip->__seq = tswap32(host_ip->__seq);
3374#else
3375 target_ip->__seq = tswap16(host_ip->__seq);
3376#endif
3eb6b044 3377 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3378 return 0;
3eb6b044
TS		 3379}
3380
579a97f7
FB		 3381static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3382 abi_ulong target_addr)
3eb6b044
TS		 3383{
3384 struct target_semid_ds *target_sd;
3385
579a97f7
FB		 3386 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3387 return -TARGET_EFAULT;
e5289087
AJ		 3388 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3389 return -TARGET_EFAULT;
cbb21eed
MB		 3390 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3391 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3392 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3393 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3394 return 0;
3eb6b044
TS		 3395}
3396
579a97f7
FB		 3397static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3398 struct semid_ds *host_sd)
3eb6b044
TS		 3399{
3400 struct target_semid_ds *target_sd;
3401
579a97f7
FB		 3402 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3403 return -TARGET_EFAULT;
e5289087 3404 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3405 return -TARGET_EFAULT;
cbb21eed
MB		 3406 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3407 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3408 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3409 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3410 return 0;
3eb6b044
TS		 3411}
3412
e5289087
AJ		 3413struct target_seminfo {
3414 int semmap;
3415 int semmni;
3416 int semmns;
3417 int semmnu;
3418 int semmsl;
3419 int semopm;
3420 int semume;
3421 int semusz;
3422 int semvmx;
3423 int semaem;
3424};
3425
3426static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3427 struct seminfo *host_seminfo)
3428{
3429 struct target_seminfo *target_seminfo;
3430 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3431 return -TARGET_EFAULT;
3432 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3433 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3434 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3435 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3436 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3437 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3438 __put_user(host_seminfo->semume, &target_seminfo->semume);
3439 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3440 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3441 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3442 unlock_user_struct(target_seminfo, target_addr, 1);
3443 return 0;
3444}
3445
fa294816
TS		 3446union semun {
3447 int val;
3eb6b044 3448 struct semid_ds *buf;
fa294816 3449 unsigned short *array;
e5289087 3450 struct seminfo *__buf;
fa294816
TS		 3451};
3452
3eb6b044
TS		 3453union target_semun {
3454 int val;
e5289087
AJ		 3455 abi_ulong buf;
3456 abi_ulong array;
3457 abi_ulong __buf;
3eb6b044
TS		 3458};
3459
e5289087
AJ		 3460static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3461 abi_ulong target_addr)
3eb6b044 3462{
e5289087
AJ		 3463 int nsems;
3464 unsigned short *array;
3465 union semun semun;
3466 struct semid_ds semid_ds;
3467 int i, ret;
3eb6b044 3468
e5289087
AJ		 3469 semun.buf = &semid_ds;
3470
3471 ret = semctl(semid, 0, IPC_STAT, semun);
3472 if (ret == -1)
3473 return get_errno(ret);
3474
3475 nsems = semid_ds.sem_nsems;
3476
0e173b24 3477 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 3478 if (!*host_array) {
3479 return -TARGET_ENOMEM;
3480 }
e5289087
AJ		 3481 array = lock_user(VERIFY_READ, target_addr,
3482 nsems*sizeof(unsigned short), 1);
69d4c703 3483 if (!array) {
0e173b24 3484 g_free(*host_array);
e5289087 3485 return -TARGET_EFAULT;
69d4c703 3486 }
e5289087
AJ		 3487
3488 for(i=0; i<nsems; i++) {
3489 __get_user((*host_array)[i], &array[i]);
3eb6b044 3490 }
e5289087
AJ		 3491 unlock_user(array, target_addr, 0);
3492
579a97f7 3493 return 0;
3eb6b044
TS		 3494}
3495
e5289087
AJ		 3496static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3497 unsigned short **host_array)
3eb6b044 3498{
e5289087
AJ		 3499 int nsems;
3500 unsigned short *array;
3501 union semun semun;
3502 struct semid_ds semid_ds;
3503 int i, ret;
3eb6b044 3504
e5289087
AJ		 3505 semun.buf = &semid_ds;
3506
3507 ret = semctl(semid, 0, IPC_STAT, semun);
3508 if (ret == -1)
3509 return get_errno(ret);
3510
3511 nsems = semid_ds.sem_nsems;
3512
3513 array = lock_user(VERIFY_WRITE, target_addr,
3514 nsems*sizeof(unsigned short), 0);
3515 if (!array)
3516 return -TARGET_EFAULT;
3517
3518 for(i=0; i<nsems; i++) {
3519 __put_user((*host_array)[i], &array[i]);
3eb6b044 3520 }
0e173b24 3521 g_free(*host_array);
e5289087
AJ		 3522 unlock_user(array, target_addr, 1);
3523
579a97f7 3524 return 0;
3eb6b044
TS		 3525}
3526
e5289087 3527static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 3528 abi_ulong target_arg)
3eb6b044 3529{
d1c002b6 3530 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 3531 union semun arg;
3532 struct semid_ds dsarg;
7b8118e8 3533 unsigned short *array = NULL;
e5289087
AJ		 3534 struct seminfo seminfo;
3535 abi_long ret = -TARGET_EINVAL;
3536 abi_long err;
3537 cmd &= 0xff;
3eb6b044
TS		 3538
3539 switch( cmd ) {
3540 case GETVAL:
3eb6b044 3541 case SETVAL:
5464baec
TM		 3542 /* In 64 bit cross-endian situations, we will erroneously pick up
3543 * the wrong half of the union for the "val" element. To rectify
3544 * this, the entire 8-byte structure is byteswapped, followed by
3545 * a swap of the 4 byte val field. In other cases, the data is
3546 * already in proper host byte order. */
3547 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3548 target_su.buf = tswapal(target_su.buf);
3549 arg.val = tswap32(target_su.val);
3550 } else {
3551 arg.val = target_su.val;
3552 }
e5289087 3553 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 3554 break;
3555 case GETALL:
3eb6b044 3556 case SETALL:
e5289087
AJ		 3557 err = target_to_host_semarray(semid, &array, target_su.array);
3558 if (err)
3559 return err;
3560 arg.array = array;
3561 ret = get_errno(semctl(semid, semnum, cmd, arg));
3562 err = host_to_target_semarray(semid, target_su.array, &array);
3563 if (err)
3564 return err;
3eb6b044
TS		 3565 break;
3566 case IPC_STAT:
3eb6b044 3567 case IPC_SET:
e5289087
AJ		 3568 case SEM_STAT:
3569 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3570 if (err)
3571 return err;
3572 arg.buf = &dsarg;
3573 ret = get_errno(semctl(semid, semnum, cmd, arg));
3574 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3575 if (err)
3576 return err;
3577 break;
3578 case IPC_INFO:
3579 case SEM_INFO:
3580 arg.__buf = &seminfo;
3581 ret = get_errno(semctl(semid, semnum, cmd, arg));
3582 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3583 if (err)
3584 return err;
3585 break;
3586 case IPC_RMID:
3587 case GETPID:
3588 case GETNCNT:
3589 case GETZCNT:
3590 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 3591 break;
3eb6b044
TS		 3592 }
3593
3594 return ret;
3595}
3596
e5289087
AJ		 3597struct target_sembuf {
3598 unsigned short sem_num;
3599 short sem_op;
3600 short sem_flg;
3601};
3602
3603static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3604 abi_ulong target_addr,
3605 unsigned nsops)
3606{
3607 struct target_sembuf *target_sembuf;
3608 int i;
3609
3610 target_sembuf = lock_user(VERIFY_READ, target_addr,
3611 nsops*sizeof(struct target_sembuf), 1);
3612 if (!target_sembuf)
3613 return -TARGET_EFAULT;
3614
3615 for(i=0; i<nsops; i++) {
3616 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3617 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3618 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3619 }
3620
3621 unlock_user(target_sembuf, target_addr, 0);
3622
3623 return 0;
3624}
3625
3626static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3627{
3628 struct sembuf sops[nsops];
3629
3630 if (target_to_host_sembuf(sops, ptr, nsops))
3631 return -TARGET_EFAULT;
3632
c7128c9f 3633 return get_errno(semop(semid, sops, nsops));
e5289087
AJ		 3634}
3635
1bc012f6
TS		 3636struct target_msqid_ds
3637{
1c54ff97
AJ		 3638 struct target_ipc_perm msg_perm;
3639 abi_ulong msg_stime;
3640#if TARGET_ABI_BITS == 32
3641 abi_ulong __unused1;
3642#endif
3643 abi_ulong msg_rtime;
3644#if TARGET_ABI_BITS == 32
3645 abi_ulong __unused2;
3646#endif
3647 abi_ulong msg_ctime;
3648#if TARGET_ABI_BITS == 32
3649 abi_ulong __unused3;
3650#endif
3651 abi_ulong __msg_cbytes;
3652 abi_ulong msg_qnum;
3653 abi_ulong msg_qbytes;
3654 abi_ulong msg_lspid;
3655 abi_ulong msg_lrpid;
3656 abi_ulong __unused4;
3657 abi_ulong __unused5;
1bc012f6
TS		 3658};
3659
579a97f7
FB		 3660static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3661 abi_ulong target_addr)
1bc012f6
TS		 3662{
3663 struct target_msqid_ds *target_md;
3664
579a97f7
FB		 3665 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3666 return -TARGET_EFAULT;
1c54ff97
AJ		 3667 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3668 return -TARGET_EFAULT;
cbb21eed
MB		 3669 host_md->msg_stime = tswapal(target_md->msg_stime);
3670 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3671 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3672 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3673 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3674 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3675 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3676 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 3677 unlock_user_struct(target_md, target_addr, 0);
579a97f7 3678 return 0;
1bc012f6
TS		 3679}
3680
579a97f7
FB		 3681static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3682 struct msqid_ds *host_md)
1bc012f6
TS		 3683{
3684 struct target_msqid_ds *target_md;
3685
579a97f7
FB		 3686 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3687 return -TARGET_EFAULT;
1c54ff97
AJ		 3688 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3689 return -TARGET_EFAULT;
cbb21eed
MB		 3690 target_md->msg_stime = tswapal(host_md->msg_stime);
3691 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3692 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3693 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3694 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3695 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3696 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3697 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 3698 unlock_user_struct(target_md, target_addr, 1);
579a97f7 3699 return 0;
1bc012f6
TS		 3700}
3701
1c54ff97
AJ		 3702struct target_msginfo {
3703 int msgpool;
3704 int msgmap;
3705 int msgmax;
3706 int msgmnb;
3707 int msgmni;
3708 int msgssz;
3709 int msgtql;
3710 unsigned short int msgseg;
3711};
3712
3713static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3714 struct msginfo *host_msginfo)
3715{
3716 struct target_msginfo *target_msginfo;
3717 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3718 return -TARGET_EFAULT;
3719 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3720 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3721 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3722 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3723 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3724 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3725 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3726 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3727 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 3728 return 0;
1c54ff97
AJ		 3729}
3730
3731static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 3732{
3733 struct msqid_ds dsarg;
1c54ff97
AJ		 3734 struct msginfo msginfo;
3735 abi_long ret = -TARGET_EINVAL;
3736
3737 cmd &= 0xff;
3738
3739 switch (cmd) {
1bc012f6
TS		 3740 case IPC_STAT:
3741 case IPC_SET:
1c54ff97
AJ		 3742 case MSG_STAT:
3743 if (target_to_host_msqid_ds(&dsarg,ptr))
3744 return -TARGET_EFAULT;
3745 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3746 if (host_to_target_msqid_ds(ptr,&dsarg))
3747 return -TARGET_EFAULT;
3748 break;
3749 case IPC_RMID:
3750 ret = get_errno(msgctl(msgid, cmd, NULL));
3751 break;
3752 case IPC_INFO:
3753 case MSG_INFO:
3754 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3755 if (host_to_target_msginfo(ptr, &msginfo))
3756 return -TARGET_EFAULT;
3757 break;
1bc012f6 3758 }
1c54ff97 3759
1bc012f6
TS		 3760 return ret;
3761}
3762
3763struct target_msgbuf {
1c54ff97
AJ		 3764 abi_long mtype;
3765 char mtext[1];
1bc012f6
TS		 3766};
3767
992f48a0 3768static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 3769 ssize_t msgsz, int msgflg)
1bc012f6
TS		 3770{
3771 struct target_msgbuf *target_mb;
3772 struct msgbuf *host_mb;
992f48a0 3773 abi_long ret = 0;
1bc012f6 3774
edcc5f9d
TM		 3775 if (msgsz < 0) {
3776 return -TARGET_EINVAL;
3777 }
3778
579a97f7
FB		 3779 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3780 return -TARGET_EFAULT;
0e173b24 3781 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 3782 if (!host_mb) {
3783 unlock_user_struct(target_mb, msgp, 0);
3784 return -TARGET_ENOMEM;
3785 }
cbb21eed 3786 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 3787 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
1bc012f6 3788 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
0e173b24 3789 g_free(host_mb);
1bc012f6
TS		 3790 unlock_user_struct(target_mb, msgp, 0);
3791
3792 return ret;
3793}
3794
992f48a0 3795static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 3796 ssize_t msgsz, abi_long msgtyp,
992f48a0 3797 int msgflg)
1bc012f6
TS		 3798{
3799 struct target_msgbuf *target_mb;
579a97f7 3800 char *target_mtext;
1bc012f6 3801 struct msgbuf *host_mb;
992f48a0 3802 abi_long ret = 0;
1bc012f6 3803
99874f65
PM		 3804 if (msgsz < 0) {
3805 return -TARGET_EINVAL;
3806 }
3807
579a97f7
FB		 3808 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3809 return -TARGET_EFAULT;
1c54ff97 3810
415d8471
PM		 3811 host_mb = g_try_malloc(msgsz + sizeof(long));
3812 if (!host_mb) {
3813 ret = -TARGET_ENOMEM;
3814 goto end;
3815 }
79dd77de 3816 ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
1c54ff97 3817
579a97f7
FB		 3818 if (ret > 0) {
3819 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3820 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3821 if (!target_mtext) {
3822 ret = -TARGET_EFAULT;
3823 goto end;
3824 }
1c54ff97 3825 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 3826 unlock_user(target_mtext, target_mtext_addr, ret);
3827 }
1c54ff97 3828
cbb21eed 3829 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 3830
579a97f7
FB		 3831end:
3832 if (target_mb)
3833 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 3834 g_free(host_mb);
1bc012f6
TS		 3835 return ret;
3836}
3837
88a8c984
RV		 3838static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3839 abi_ulong target_addr)
3840{
3841 struct target_shmid_ds *target_sd;
3842
3843 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3844 return -TARGET_EFAULT;
3845 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3846 return -TARGET_EFAULT;
3847 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3848 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3849 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3850 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3851 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3852 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3853 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3854 unlock_user_struct(target_sd, target_addr, 0);
3855 return 0;
3856}
3857
3858static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3859 struct shmid_ds *host_sd)
3860{
3861 struct target_shmid_ds *target_sd;
3862
3863 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3864 return -TARGET_EFAULT;
3865 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3866 return -TARGET_EFAULT;
3867 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3868 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3869 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3870 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3871 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3872 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3873 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3874 unlock_user_struct(target_sd, target_addr, 1);
3875 return 0;
3876}
3877
3878struct target_shminfo {
3879 abi_ulong shmmax;
3880 abi_ulong shmmin;
3881 abi_ulong shmmni;
3882 abi_ulong shmseg;
3883 abi_ulong shmall;
3884};
3885
3886static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3887 struct shminfo *host_shminfo)
3888{
3889 struct target_shminfo *target_shminfo;
3890 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3891 return -TARGET_EFAULT;
3892 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3893 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3894 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3895 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3896 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3897 unlock_user_struct(target_shminfo, target_addr, 1);
3898 return 0;
3899}
3900
3901struct target_shm_info {
3902 int used_ids;
3903 abi_ulong shm_tot;
3904 abi_ulong shm_rss;
3905 abi_ulong shm_swp;
3906 abi_ulong swap_attempts;
3907 abi_ulong swap_successes;
3908};
3909
3910static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3911 struct shm_info *host_shm_info)
3912{
3913 struct target_shm_info *target_shm_info;
3914 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3915 return -TARGET_EFAULT;
3916 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3917 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3918 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3919 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3920 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3921 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3922 unlock_user_struct(target_shm_info, target_addr, 1);
3923 return 0;
3924}
3925
3926static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3927{
3928 struct shmid_ds dsarg;
3929 struct shminfo shminfo;
3930 struct shm_info shm_info;
3931 abi_long ret = -TARGET_EINVAL;
3932
3933 cmd &= 0xff;
3934
3935 switch(cmd) {
3936 case IPC_STAT:
3937 case IPC_SET:
3938 case SHM_STAT:
3939 if (target_to_host_shmid_ds(&dsarg, buf))
3940 return -TARGET_EFAULT;
3941 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3942 if (host_to_target_shmid_ds(buf, &dsarg))
3943 return -TARGET_EFAULT;
3944 break;
3945 case IPC_INFO:
3946 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3947 if (host_to_target_shminfo(buf, &shminfo))
3948 return -TARGET_EFAULT;
3949 break;
3950 case SHM_INFO:
3951 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3952 if (host_to_target_shm_info(buf, &shm_info))
3953 return -TARGET_EFAULT;
3954 break;
3955 case IPC_RMID:
3956 case SHM_LOCK:
3957 case SHM_UNLOCK:
3958 ret = get_errno(shmctl(shmid, cmd, NULL));
3959 break;
3960 }
3961
3962 return ret;
3963}
3964
3965static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
3966{
3967 abi_long raddr;
3968 void *host_raddr;
3969 struct shmid_ds shm_info;
3970 int i,ret;
3971
3972 /* find out the length of the shared memory segment */
3973 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
3974 if (is_error(ret)) {
3975 /* can't get length, bail out */
3976 return ret;
3977 }
3978
3979 mmap_lock();
3980
3981 if (shmaddr)
3982 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
3983 else {
3984 abi_ulong mmap_start;
3985
3986 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
3987
3988 if (mmap_start == -1) {
3989 errno = ENOMEM;
3990 host_raddr = (void *)-1;
3991 } else
3992 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
3993 }
3994
3995 if (host_raddr == (void *)-1) {
3996 mmap_unlock();
3997 return get_errno((long)host_raddr);
3998 }
3999 raddr=h2g((unsigned long)host_raddr);
4000
4001 page_set_flags(raddr, raddr + shm_info.shm_segsz,
4002 PAGE_VALID | PAGE_READ |
4003 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
4004
4005 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 4006 if (!shm_regions[i].in_use) {
4007 shm_regions[i].in_use = true;
88a8c984
RV		 4008 shm_regions[i].start = raddr;
4009 shm_regions[i].size = shm_info.shm_segsz;
4010 break;
4011 }
4012 }
4013
4014 mmap_unlock();
4015 return raddr;
4016
4017}
4018
4019static inline abi_long do_shmdt(abi_ulong shmaddr)
4020{
4021 int i;
4022
4023 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 4024 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
4025 shm_regions[i].in_use = false;
e00ac249 4026 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 4027 break;
4028 }
4029 }
4030
4031 return get_errno(shmdt(g2h(shmaddr)));
4032}
4033
1c54ff97 4034#ifdef TARGET_NR_ipc
53a5960a 4035/* ??? This only works with linear mappings. */
0da46a6e 4036/* do_ipc() must return target values and target errnos. */
37ed0956
TM		 4037static abi_long do_ipc(unsigned int call, abi_long first,
4038 abi_long second, abi_long third,
992f48a0 4039 abi_long ptr, abi_long fifth)
8853f86e
FB		 4040{
4041 int version;
992f48a0 4042 abi_long ret = 0;
8853f86e
FB		 4043
4044 version = call >> 16;
4045 call &= 0xffff;
4046
4047 switch (call) {
fa294816 4048 case IPCOP_semop:
e5289087 4049 ret = do_semop(first, ptr, second);
fa294816
TS		 4050 break;
4051
4052 case IPCOP_semget:
4053 ret = get_errno(semget(first, second, third));
4054 break;
4055
5d2fa8eb
TM		 4056 case IPCOP_semctl: {
4057 /* The semun argument to semctl is passed by value, so dereference the
4058 * ptr argument. */
4059 abi_ulong atptr;
37ed0956 4060 get_user_ual(atptr, ptr);
d1c002b6 4061 ret = do_semctl(first, second, third, atptr);
fa294816 4062 break;
5d2fa8eb 4063 }
d96372ef 4064
1c54ff97
AJ		 4065 case IPCOP_msgget:
4066 ret = get_errno(msgget(first, second));
4067 break;
d96372ef 4068
1c54ff97
AJ		 4069 case IPCOP_msgsnd:
4070 ret = do_msgsnd(first, ptr, second, third);
4071 break;
d96372ef 4072
1c54ff97
AJ		 4073 case IPCOP_msgctl:
4074 ret = do_msgctl(first, second, ptr);
4075 break;
d96372ef 4076
1c54ff97
AJ		 4077 case IPCOP_msgrcv:
4078 switch (version) {
4079 case 0:
4080 {
4081 struct target_ipc_kludge {
4082 abi_long msgp;
4083 abi_long msgtyp;
4084 } *tmp;
4085
4086 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
4087 ret = -TARGET_EFAULT;
4088 break;
4089 }
d96372ef 4090
79dd77de 4091 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 4092
1c54ff97
AJ		 4093 unlock_user_struct(tmp, ptr, 0);
4094 break;
4095 }
4096 default:
4097 ret = do_msgrcv(first, ptr, second, fifth, third);
4098 }
4099 break;
d96372ef 4100
8853f86e 4101 case IPCOP_shmat:
88a8c984
RV		 4102 switch (version) {
4103 default:
5a4a898d
FB		 4104 {
4105 abi_ulong raddr;
88a8c984
RV		 4106 raddr = do_shmat(first, ptr, second);
4107 if (is_error(raddr))
4108 return get_errno(raddr);
2f619698 4109 if (put_user_ual(raddr, third))
5a4a898d 4110 return -TARGET_EFAULT;
88a8c984
RV		 4111 break;
4112 }
4113 case 1:
4114 ret = -TARGET_EINVAL;
4115 break;
5a4a898d 4116 }
8853f86e
FB		 4117 break;
4118 case IPCOP_shmdt:
88a8c984 4119 ret = do_shmdt(ptr);
8853f86e
FB		 4120 break;
4121
4122 case IPCOP_shmget:
4123 /* IPC_* flag values are the same on all linux platforms */
4124 ret = get_errno(shmget(first, second, third));
4125 break;
4126
4127 /* IPC_* and SHM_* command values are the same on all linux platforms */
4128 case IPCOP_shmctl:
a2926784 4129 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4130 break;
4131 default:
32407103 4132 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 4133 ret = -TARGET_ENOSYS;
8853f86e
FB		 4134 break;
4135 }
4136 return ret;
4137}
32407103 4138#endif
8853f86e 4139
31e31b8a 4140/* kernel structure types definitions */
31e31b8a 4141
001faf32 4142#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4143#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4144enum {
4145#include "syscall_types.h"
8be656b8 4146STRUCT_MAX
31e31b8a
FB		 4147};
4148#undef STRUCT
4149#undef STRUCT_SPECIAL
4150
001faf32 4151#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4152#define STRUCT_SPECIAL(name)
4153#include "syscall_types.h"
4154#undef STRUCT
4155#undef STRUCT_SPECIAL
4156
d2ef05bb
PM		 4157typedef struct IOCTLEntry IOCTLEntry;
4158
4159typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4160 int fd, int cmd, abi_long arg);
d2ef05bb
PM		 4161
4162struct IOCTLEntry {
9c6bf9c7 4163 int target_cmd;
2ab83ea7 4164 unsigned int host_cmd;
31e31b8a
FB		 4165 const char *name;
4166 int access;
d2ef05bb 4167 do_ioctl_fn *do_ioctl;
1a9353d2 4168 const argtype arg_type[5];
d2ef05bb 4169};
31e31b8a
FB		 4170
4171#define IOC_R 0x0001
4172#define IOC_W 0x0002
4173#define IOC_RW (IOC_R | IOC_W)
4174
4175#define MAX_STRUCT_SIZE 4096
4176
dace20dc 4177#ifdef CONFIG_FIEMAP
285da2b9
PM		 4178/* So fiemap access checks don't overflow on 32 bit systems.
4179 * This is very slightly smaller than the limit imposed by
4180 * the underlying kernel.
4181 */
4182#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4183 / sizeof(struct fiemap_extent))
4184
4185static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4186 int fd, int cmd, abi_long arg)
285da2b9
PM		 4187{
4188 /* The parameter for this ioctl is a struct fiemap followed
4189 * by an array of struct fiemap_extent whose size is set
4190 * in fiemap->fm_extent_count. The array is filled in by the
4191 * ioctl.
4192 */
4193 int target_size_in, target_size_out;
4194 struct fiemap *fm;
4195 const argtype *arg_type = ie->arg_type;
4196 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4197 void *argptr, *p;
4198 abi_long ret;
4199 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4200 uint32_t outbufsz;
4201 int free_fm = 0;
4202
4203 assert(arg_type[0] == TYPE_PTR);
4204 assert(ie->access == IOC_RW);
4205 arg_type++;
4206 target_size_in = thunk_type_size(arg_type, 0);
4207 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4208 if (!argptr) {
4209 return -TARGET_EFAULT;
4210 }
4211 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4212 unlock_user(argptr, arg, 0);
4213 fm = (struct fiemap *)buf_temp;
4214 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4215 return -TARGET_EINVAL;
4216 }
4217
4218 outbufsz = sizeof (*fm) +
4219 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4220
4221 if (outbufsz > MAX_STRUCT_SIZE) {
4222 /* We can't fit all the extents into the fixed size buffer.
4223 * Allocate one that is large enough and use it instead.
4224 */
0e173b24 4225 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4226 if (!fm) {
4227 return -TARGET_ENOMEM;
4228 }
4229 memcpy(fm, buf_temp, sizeof(struct fiemap));
4230 free_fm = 1;
4231 }
4232 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
4233 if (!is_error(ret)) {
4234 target_size_out = target_size_in;
4235 /* An extent_count of 0 means we were only counting the extents
4236 * so there are no structs to copy
4237 */
4238 if (fm->fm_extent_count != 0) {
4239 target_size_out += fm->fm_mapped_extents * extent_size;
4240 }
4241 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4242 if (!argptr) {
4243 ret = -TARGET_EFAULT;
4244 } else {
4245 /* Convert the struct fiemap */
4246 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4247 if (fm->fm_extent_count != 0) {
4248 p = argptr + target_size_in;
4249 /* ...and then all the struct fiemap_extents */
4250 for (i = 0; i < fm->fm_mapped_extents; i++) {
4251 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4252 THUNK_TARGET);
4253 p += extent_size;
4254 }
4255 }
4256 unlock_user(argptr, arg, target_size_out);
4257 }
4258 }
4259 if (free_fm) {
0e173b24 4260 g_free(fm);
285da2b9
PM		 4261 }
4262 return ret;
4263}
dace20dc 4264#endif
285da2b9 4265
059c2f2c 4266static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4267 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4268{
4269 const argtype *arg_type = ie->arg_type;
4270 int target_size;
4271 void *argptr;
4272 int ret;
4273 struct ifconf *host_ifconf;
4274 uint32_t outbufsz;
4275 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4276 int target_ifreq_size;
4277 int nb_ifreq;
4278 int free_buf = 0;
4279 int i;
4280 int target_ifc_len;
4281 abi_long target_ifc_buf;
4282 int host_ifc_len;
4283 char *host_ifc_buf;
4284
4285 assert(arg_type[0] == TYPE_PTR);
4286 assert(ie->access == IOC_RW);
4287
4288 arg_type++;
4289 target_size = thunk_type_size(arg_type, 0);
4290
4291 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4292 if (!argptr)
4293 return -TARGET_EFAULT;
4294 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4295 unlock_user(argptr, arg, 0);
4296
4297 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
4298 target_ifc_len = host_ifconf->ifc_len;
4299 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
4300
4301 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
4302 nb_ifreq = target_ifc_len / target_ifreq_size;
4303 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4304
4305 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4306 if (outbufsz > MAX_STRUCT_SIZE) {
4307 /* We can't fit all the extents into the fixed size buffer.
4308 * Allocate one that is large enough and use it instead.
4309 */
4310 host_ifconf = malloc(outbufsz);
4311 if (!host_ifconf) {
4312 return -TARGET_ENOMEM;
4313 }
4314 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4315 free_buf = 1;
4316 }
4317 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
4318
4319 host_ifconf->ifc_len = host_ifc_len;
4320 host_ifconf->ifc_buf = host_ifc_buf;
4321
4322 ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
4323 if (!is_error(ret)) {
4324 /* convert host ifc_len to target ifc_len */
4325
4326 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4327 target_ifc_len = nb_ifreq * target_ifreq_size;
4328 host_ifconf->ifc_len = target_ifc_len;
4329
4330 /* restore target ifc_buf */
4331
4332 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4333
4334 /* copy struct ifconf to target user */
4335
4336 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4337 if (!argptr)
4338 return -TARGET_EFAULT;
4339 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4340 unlock_user(argptr, arg, target_size);
4341
4342 /* copy ifreq[] to target user */
4343
4344 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4345 for (i = 0; i < nb_ifreq ; i++) {
4346 thunk_convert(argptr + i * target_ifreq_size,
4347 host_ifc_buf + i * sizeof(struct ifreq),
4348 ifreq_arg_type, THUNK_TARGET);
4349 }
4350 unlock_user(argptr, target_ifc_buf, target_ifc_len);
4351 }
4352
4353 if (free_buf) {
4354 free(host_ifconf);
4355 }
4356
4357 return ret;
4358}
4359
56e904ec 4360static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4361 int cmd, abi_long arg)
56e904ec
AG		 4362{
4363 void *argptr;
4364 struct dm_ioctl *host_dm;
4365 abi_long guest_data;
4366 uint32_t guest_data_size;
4367 int target_size;
4368 const argtype *arg_type = ie->arg_type;
4369 abi_long ret;
4370 void *big_buf = NULL;
4371 char *host_data;
4372
4373 arg_type++;
4374 target_size = thunk_type_size(arg_type, 0);
4375 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4376 if (!argptr) {
4377 ret = -TARGET_EFAULT;
4378 goto out;
4379 }
4380 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4381 unlock_user(argptr, arg, 0);
4382
4383 /* buf_temp is too small, so fetch things into a bigger buffer */
4384 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4385 memcpy(big_buf, buf_temp, target_size);
4386 buf_temp = big_buf;
4387 host_dm = big_buf;
4388
4389 guest_data = arg + host_dm->data_start;
4390 if ((guest_data - arg) < 0) {
4391 ret = -EINVAL;
4392 goto out;
4393 }
4394 guest_data_size = host_dm->data_size - host_dm->data_start;
4395 host_data = (char*)host_dm + host_dm->data_start;
4396
4397 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
4398 switch (ie->host_cmd) {
4399 case DM_REMOVE_ALL:
4400 case DM_LIST_DEVICES:
4401 case DM_DEV_CREATE:
4402 case DM_DEV_REMOVE:
4403 case DM_DEV_SUSPEND:
4404 case DM_DEV_STATUS:
4405 case DM_DEV_WAIT:
4406 case DM_TABLE_STATUS:
4407 case DM_TABLE_CLEAR:
4408 case DM_TABLE_DEPS:
4409 case DM_LIST_VERSIONS:
4410 /* no input data */
4411 break;
4412 case DM_DEV_RENAME:
4413 case DM_DEV_SET_GEOMETRY:
4414 /* data contains only strings */
4415 memcpy(host_data, argptr, guest_data_size);
4416 break;
4417 case DM_TARGET_MSG:
4418 memcpy(host_data, argptr, guest_data_size);
4419 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4420 break;
4421 case DM_TABLE_LOAD:
4422 {
4423 void *gspec = argptr;
4424 void *cur_data = host_data;
4425 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4426 int spec_size = thunk_type_size(arg_type, 0);
4427 int i;
4428
4429 for (i = 0; i < host_dm->target_count; i++) {
4430 struct dm_target_spec *spec = cur_data;
4431 uint32_t next;
4432 int slen;
4433
4434 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4435 slen = strlen((char*)gspec + spec_size) + 1;
4436 next = spec->next;
4437 spec->next = sizeof(*spec) + slen;
4438 strcpy((char*)&spec[1], gspec + spec_size);
4439 gspec += next;
4440 cur_data += spec->next;
4441 }
4442 break;
4443 }
4444 default:
4445 ret = -TARGET_EINVAL;
dec0473d 4446 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4447 goto out;
4448 }
4449 unlock_user(argptr, guest_data, 0);
4450
4451 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
4452 if (!is_error(ret)) {
4453 guest_data = arg + host_dm->data_start;
4454 guest_data_size = host_dm->data_size - host_dm->data_start;
4455 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4456 switch (ie->host_cmd) {
4457 case DM_REMOVE_ALL:
4458 case DM_DEV_CREATE:
4459 case DM_DEV_REMOVE:
4460 case DM_DEV_RENAME:
4461 case DM_DEV_SUSPEND:
4462 case DM_DEV_STATUS:
4463 case DM_TABLE_LOAD:
4464 case DM_TABLE_CLEAR:
4465 case DM_TARGET_MSG:
4466 case DM_DEV_SET_GEOMETRY:
4467 /* no return data */
4468 break;
4469 case DM_LIST_DEVICES:
4470 {
4471 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4472 uint32_t remaining_data = guest_data_size;
4473 void *cur_data = argptr;
4474 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4475 int nl_size = 12; /* can't use thunk_size due to alignment */
4476
4477 while (1) {
4478 uint32_t next = nl->next;
4479 if (next) {
4480 nl->next = nl_size + (strlen(nl->name) + 1);
4481 }
4482 if (remaining_data < nl->next) {
4483 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4484 break;
4485 }
4486 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4487 strcpy(cur_data + nl_size, nl->name);
4488 cur_data += nl->next;
4489 remaining_data -= nl->next;
4490 if (!next) {
4491 break;
4492 }
4493 nl = (void*)nl + next;
4494 }
4495 break;
4496 }
4497 case DM_DEV_WAIT:
4498 case DM_TABLE_STATUS:
4499 {
4500 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4501 void *cur_data = argptr;
4502 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4503 int spec_size = thunk_type_size(arg_type, 0);
4504 int i;
4505
4506 for (i = 0; i < host_dm->target_count; i++) {
4507 uint32_t next = spec->next;
4508 int slen = strlen((char*)&spec[1]) + 1;
4509 spec->next = (cur_data - argptr) + spec_size + slen;
4510 if (guest_data_size < spec->next) {
4511 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4512 break;
4513 }
4514 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4515 strcpy(cur_data + spec_size, (char*)&spec[1]);
4516 cur_data = argptr + spec->next;
4517 spec = (void*)host_dm + host_dm->data_start + next;
4518 }
4519 break;
4520 }
4521 case DM_TABLE_DEPS:
4522 {
4523 void *hdata = (void*)host_dm + host_dm->data_start;
4524 int count = *(uint32_t*)hdata;
4525 uint64_t *hdev = hdata + 8;
4526 uint64_t *gdev = argptr + 8;
4527 int i;
4528
4529 *(uint32_t*)argptr = tswap32(count);
4530 for (i = 0; i < count; i++) {
4531 *gdev = tswap64(*hdev);
4532 gdev++;
4533 hdev++;
4534 }
4535 break;
4536 }
4537 case DM_LIST_VERSIONS:
4538 {
4539 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4540 uint32_t remaining_data = guest_data_size;
4541 void *cur_data = argptr;
4542 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4543 int vers_size = thunk_type_size(arg_type, 0);
4544
4545 while (1) {
4546 uint32_t next = vers->next;
4547 if (next) {
4548 vers->next = vers_size + (strlen(vers->name) + 1);
4549 }
4550 if (remaining_data < vers->next) {
4551 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4552 break;
4553 }
4554 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4555 strcpy(cur_data + vers_size, vers->name);
4556 cur_data += vers->next;
4557 remaining_data -= vers->next;
4558 if (!next) {
4559 break;
4560 }
4561 vers = (void*)vers + next;
4562 }
4563 break;
4564 }
4565 default:
dec0473d 4566 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4567 ret = -TARGET_EINVAL;
4568 goto out;
4569 }
4570 unlock_user(argptr, guest_data, guest_data_size);
4571
4572 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4573 if (!argptr) {
4574 ret = -TARGET_EFAULT;
4575 goto out;
4576 }
4577 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4578 unlock_user(argptr, arg, target_size);
4579 }
4580out:
ad11ad77 4581 g_free(big_buf);
56e904ec
AG		 4582 return ret;
4583}
4584
a59b5e35 4585static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4586 int cmd, abi_long arg)
a59b5e35
AG		 4587{
4588 void *argptr;
4589 int target_size;
4590 const argtype *arg_type = ie->arg_type;
4591 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4592 abi_long ret;
4593
4594 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4595 struct blkpg_partition host_part;
4596
4597 /* Read and convert blkpg */
4598 arg_type++;
4599 target_size = thunk_type_size(arg_type, 0);
4600 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4601 if (!argptr) {
4602 ret = -TARGET_EFAULT;
4603 goto out;
4604 }
4605 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4606 unlock_user(argptr, arg, 0);
4607
4608 switch (host_blkpg->op) {
4609 case BLKPG_ADD_PARTITION:
4610 case BLKPG_DEL_PARTITION:
4611 /* payload is struct blkpg_partition */
4612 break;
4613 default:
4614 /* Unknown opcode */
4615 ret = -TARGET_EINVAL;
4616 goto out;
4617 }
4618
4619 /* Read and convert blkpg->data */
4620 arg = (abi_long)(uintptr_t)host_blkpg->data;
4621 target_size = thunk_type_size(part_arg_type, 0);
4622 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4623 if (!argptr) {
4624 ret = -TARGET_EFAULT;
4625 goto out;
4626 }
4627 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4628 unlock_user(argptr, arg, 0);
4629
4630 /* Swizzle the data pointer to our local copy and call! */
4631 host_blkpg->data = &host_part;
4632 ret = get_errno(ioctl(fd, ie->host_cmd, host_blkpg));
4633
4634out:
4635 return ret;
4636}
4637
7ff7b666 4638static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4639 int fd, int cmd, abi_long arg)
7ff7b666
LV		 4640{
4641 const argtype *arg_type = ie->arg_type;
4642 const StructEntry *se;
4643 const argtype *field_types;
4644 const int *dst_offsets, *src_offsets;
4645 int target_size;
4646 void *argptr;
4647 abi_ulong *target_rt_dev_ptr;
4648 unsigned long *host_rt_dev_ptr;
4649 abi_long ret;
4650 int i;
4651
4652 assert(ie->access == IOC_W);
4653 assert(*arg_type == TYPE_PTR);
4654 arg_type++;
4655 assert(*arg_type == TYPE_STRUCT);
4656 target_size = thunk_type_size(arg_type, 0);
4657 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4658 if (!argptr) {
4659 return -TARGET_EFAULT;
4660 }
4661 arg_type++;
4662 assert(*arg_type == (int)STRUCT_rtentry);
4663 se = struct_entries + *arg_type++;
4664 assert(se->convert[0] == NULL);
4665 /* convert struct here to be able to catch rt_dev string */
4666 field_types = se->field_types;
4667 dst_offsets = se->field_offsets[THUNK_HOST];
4668 src_offsets = se->field_offsets[THUNK_TARGET];
4669 for (i = 0; i < se->nb_fields; i++) {
4670 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4671 assert(*field_types == TYPE_PTRVOID);
4672 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4673 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4674 if (*target_rt_dev_ptr != 0) {
4675 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4676 tswapal(*target_rt_dev_ptr));
4677 if (!*host_rt_dev_ptr) {
4678 unlock_user(argptr, arg, 0);
4679 return -TARGET_EFAULT;
4680 }
4681 } else {
4682 *host_rt_dev_ptr = 0;
4683 }
4684 field_types++;
4685 continue;
4686 }
4687 field_types = thunk_convert(buf_temp + dst_offsets[i],
4688 argptr + src_offsets[i],
4689 field_types, THUNK_HOST);
4690 }
4691 unlock_user(argptr, arg, 0);
4692
4693 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
4694 if (*host_rt_dev_ptr != 0) {
4695 unlock_user((void *)*host_rt_dev_ptr,
4696 *target_rt_dev_ptr, 0);
4697 }
4698 return ret;
4699}
4700
ca56f5b5 4701static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4702 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 4703{
4704 int sig = target_to_host_signal(arg);
4705 return get_errno(ioctl(fd, ie->host_cmd, sig));
4706}
4707
9f106a75 4708static IOCTLEntry ioctl_entries[] = {
001faf32 4709#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 4710 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
4711#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
4712 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
31e31b8a
FB		 4713#include "ioctls.h"
4714 { 0, 0, },
4715};
4716
53a5960a 4717/* ??? Implement proper locking for ioctls. */
0da46a6e 4718/* do_ioctl() Must return target values and target errnos. */
45c874eb 4719static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 4720{
4721 const IOCTLEntry *ie;
4722 const argtype *arg_type;
992f48a0 4723 abi_long ret;
31e31b8a 4724 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 4725 int target_size;
4726 void *argptr;
31e31b8a
FB		 4727
4728 ie = ioctl_entries;
4729 for(;;) {
4730 if (ie->target_cmd == 0) {
32407103 4731 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 4732 return -TARGET_ENOSYS;
31e31b8a
FB		 4733 }
4734 if (ie->target_cmd == cmd)
4735 break;
4736 ie++;
4737 }
4738 arg_type = ie->arg_type;
9de5e440 4739#if defined(DEBUG)
32407103 4740 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
72f03900 4741#endif
d2ef05bb
PM		 4742 if (ie->do_ioctl) {
4743 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
4744 }
4745
31e31b8a
FB		 4746 switch(arg_type[0]) {
4747 case TYPE_NULL:
4748 /* no argument */
4749 ret = get_errno(ioctl(fd, ie->host_cmd));
4750 break;
4751 case TYPE_PTRVOID:
4752 case TYPE_INT:
31e31b8a
FB		 4753 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
4754 break;
4755 case TYPE_PTR:
4756 arg_type++;
53a5960a 4757 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 4758 switch(ie->access) {
4759 case IOC_R:
4760 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
4761 if (!is_error(ret)) {
579a97f7
FB		 4762 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4763 if (!argptr)
4764 return -TARGET_EFAULT;
53a5960a
PB		 4765 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4766 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4767 }
4768 break;
4769 case IOC_W:
579a97f7
FB		 4770 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4771 if (!argptr)
4772 return -TARGET_EFAULT;
53a5960a
PB		 4773 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4774 unlock_user(argptr, arg, 0);
31e31b8a
FB		 4775 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
4776 break;
4777 default:
4778 case IOC_RW:
579a97f7
FB		 4779 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4780 if (!argptr)
4781 return -TARGET_EFAULT;
53a5960a
PB		 4782 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4783 unlock_user(argptr, arg, 0);
31e31b8a
FB		 4784 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
4785 if (!is_error(ret)) {
579a97f7
FB		 4786 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4787 if (!argptr)
4788 return -TARGET_EFAULT;
53a5960a
PB		 4789 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4790 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4791 }
4792 break;
4793 }
4794 break;
4795 default:
32407103
JM		 4796 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
4797 (long)cmd, arg_type[0]);
0da46a6e 4798 ret = -TARGET_ENOSYS;
31e31b8a
FB		 4799 break;
4800 }
4801 return ret;
4802}
4803
b39bc503 4804static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 4805 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
4806 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
4807 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
4808 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
4809 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
4810 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
4811 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
4812 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
4813 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
4814 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
4815 { TARGET_IXON, TARGET_IXON, IXON, IXON },
4816 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
4817 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
4818 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
4819 { 0, 0, 0, 0 }
4820};
4821
b39bc503 4822static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 4823 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
4824 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
4825 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
4826 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
4827 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
4828 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
4829 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
4830 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
4831 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
4832 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
4833 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
4834 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
4835 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
4836 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
4837 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
4838 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
4839 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
4840 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
4841 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
4842 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
4843 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
4844 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
4845 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
4846 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
4847 { 0, 0, 0, 0 }
4848};
4849
b39bc503 4850static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 4851 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
4852 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
4853 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
4854 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
4855 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
4856 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
4857 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
4858 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
4859 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
4860 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
4861 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
4862 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
4863 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
4864 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
4865 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
4866 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
4867 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
4868 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
4869 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
4870 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
4871 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
4872 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
4873 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
4874 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
4875 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
4876 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
4877 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
4878 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
4879 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
4880 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
4881 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
4882 { 0, 0, 0, 0 }
4883};
4884
b39bc503 4885static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 4886 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
4887 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
4888 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
4889 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
4890 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
4891 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
4892 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
4893 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
4894 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
4895 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
4896 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
4897 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
4898 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
4899 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
4900 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
4901 { 0, 0, 0, 0 }
4902};
4903
4904static void target_to_host_termios (void *dst, const void *src)
4905{
4906 struct host_termios *host = dst;
4907 const struct target_termios *target = src;
3b46e624 4908
5fafdf24 4909 host->c_iflag =
31e31b8a 4910 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 4911 host->c_oflag =
31e31b8a 4912 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 4913 host->c_cflag =
31e31b8a 4914 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 4915 host->c_lflag =
31e31b8a
FB		 4916 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
4917 host->c_line = target->c_line;
3b46e624 4918
44607123 4919 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 4920 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
4921 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 4922 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 4923 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 4924 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 4925 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 4926 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 4927 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 4928 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 4929 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
4930 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 4931 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
4932 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
4933 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
4934 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
4935 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 4936 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 4937}
3b46e624 4938
31e31b8a
FB		 4939static void host_to_target_termios (void *dst, const void *src)
4940{
4941 struct target_termios *target = dst;
4942 const struct host_termios *host = src;
4943
5fafdf24 4944 target->c_iflag =
31e31b8a 4945 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 4946 target->c_oflag =
31e31b8a 4947 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 4948 target->c_cflag =
31e31b8a 4949 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 4950 target->c_lflag =
31e31b8a
FB		 4951 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
4952 target->c_line = host->c_line;
3b46e624 4953
44607123 4954 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 4955 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
4956 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
4957 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
4958 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
4959 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
4960 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
4961 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
4962 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
4963 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
4964 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
4965 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
4966 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
4967 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
4968 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
4969 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
4970 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
4971 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
4972}
4973
8e853dc7 4974static const StructEntry struct_termios_def = {
31e31b8a
FB		 4975 .convert = { host_to_target_termios, target_to_host_termios },
4976 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
4977 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
4978};
4979
5286db75
FB		 4980static bitmask_transtbl mmap_flags_tbl[] = {
4981 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
4982 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
4983 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
4984 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
4985 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
4986 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
4987 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
4988 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
e8efd8e7
CL		 4989 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, MAP_NORESERVE,
4990 MAP_NORESERVE },
5286db75
FB		 4991 { 0, 0, 0, 0 }
4992};
4993
2ab83ea7 4994#if defined(TARGET_I386)
6dbad63e
FB		 4995
4996/* NOTE: there is really one LDT for all the threads */
b1d8e52e 4997static uint8_t *ldt_table;
6dbad63e 4998
03acab66 4999static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 5000{
5001 int size;
53a5960a 5002 void *p;
6dbad63e
FB		 5003
5004 if (!ldt_table)
5005 return 0;
5006 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5007 if (size > bytecount)
5008 size = bytecount;
579a97f7
FB		 5009 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5010 if (!p)
03acab66 5011 return -TARGET_EFAULT;
579a97f7 5012 /* ??? Should this by byteswapped? */
53a5960a
PB		 5013 memcpy(p, ldt_table, size);
5014 unlock_user(p, ptr, size);
6dbad63e
FB		 5015 return size;
5016}
5017
5018/* XXX: add locking support */
03acab66
FB		 5019static abi_long write_ldt(CPUX86State *env,
5020 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 5021{
5022 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 5023 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 5024 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 5025 int seg_not_present, useable, lm;
6dbad63e
FB		 5026 uint32_t *lp, entry_1, entry_2;
5027
5028 if (bytecount != sizeof(ldt_info))
03acab66 5029 return -TARGET_EINVAL;
579a97f7 5030 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 5031 return -TARGET_EFAULT;
53a5960a 5032 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5033 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 5034 ldt_info.limit = tswap32(target_ldt_info->limit);
5035 ldt_info.flags = tswap32(target_ldt_info->flags);
5036 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 5037
6dbad63e 5038 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 5039 return -TARGET_EINVAL;
6dbad63e
FB		 5040 seg_32bit = ldt_info.flags & 1;
5041 contents = (ldt_info.flags >> 1) & 3;
5042 read_exec_only = (ldt_info.flags >> 3) & 1;
5043 limit_in_pages = (ldt_info.flags >> 4) & 1;
5044 seg_not_present = (ldt_info.flags >> 5) & 1;
5045 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 5046#ifdef TARGET_ABI32
5047 lm = 0;
5048#else
5049 lm = (ldt_info.flags >> 7) & 1;
5050#endif
6dbad63e
FB		 5051 if (contents == 3) {
5052 if (oldmode)
03acab66 5053 return -TARGET_EINVAL;
6dbad63e 5054 if (seg_not_present == 0)
03acab66 5055 return -TARGET_EINVAL;
6dbad63e
FB		 5056 }
5057 /* allocate the LDT */
5058 if (!ldt_table) {
e441570f
AZ		 5059 env->ldt.base = target_mmap(0,
5060 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5061 PROT_READ|PROT_WRITE,
5062 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5063 if (env->ldt.base == -1)
03acab66 5064 return -TARGET_ENOMEM;
e441570f
AZ		 5065 memset(g2h(env->ldt.base), 0,
5066 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 5067 env->ldt.limit = 0xffff;
e441570f 5068 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 5069 }
5070
5071 /* NOTE: same code as Linux kernel */
5072 /* Allow LDTs to be cleared by the user. */
5073 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5074 if (oldmode ||
5075 (contents == 0 &&
5076 read_exec_only == 1 &&
5077 seg_32bit == 0 &&
5078 limit_in_pages == 0 &&
5079 seg_not_present == 1 &&
5080 useable == 0 )) {
5081 entry_1 = 0;
5082 entry_2 = 0;
5083 goto install;
5084 }
5085 }
3b46e624 5086
6dbad63e
FB		 5087 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5088 (ldt_info.limit & 0x0ffff);
5089 entry_2 = (ldt_info.base_addr & 0xff000000) |
5090 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5091 (ldt_info.limit & 0xf0000) |
5092 ((read_exec_only ^ 1) << 9) |
5093 (contents << 10) |
5094 ((seg_not_present ^ 1) << 15) |
5095 (seg_32bit << 22) |
5096 (limit_in_pages << 23) |
8d18e893 5097 (lm << 21) |
6dbad63e
FB		 5098 0x7000;
5099 if (!oldmode)
5100 entry_2 |= (useable << 20);
14ae3ba7 5101
6dbad63e
FB		 5102 /* Install the new entry ... */
5103install:
5104 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5105 lp[0] = tswap32(entry_1);
5106 lp[1] = tswap32(entry_2);
5107 return 0;
5108}
5109
5110/* specific and weird i386 syscalls */
8fcd3692
BS		 5111static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5112 unsigned long bytecount)
6dbad63e 5113{
03acab66 5114 abi_long ret;
3b46e624 5115
6dbad63e
FB		 5116 switch (func) {
5117 case 0:
5118 ret = read_ldt(ptr, bytecount);
5119 break;
5120 case 1:
5121 ret = write_ldt(env, ptr, bytecount, 1);
5122 break;
5123 case 0x11:
5124 ret = write_ldt(env, ptr, bytecount, 0);
5125 break;
03acab66
FB		 5126 default:
5127 ret = -TARGET_ENOSYS;
5128 break;
6dbad63e
FB		 5129 }
5130 return ret;
5131}
1b6b029e 5132
4583f589 5133#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 5134abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5135{
5136 uint64_t *gdt_table = g2h(env->gdt.base);
5137 struct target_modify_ldt_ldt_s ldt_info;
5138 struct target_modify_ldt_ldt_s *target_ldt_info;
5139 int seg_32bit, contents, read_exec_only, limit_in_pages;
5140 int seg_not_present, useable, lm;
5141 uint32_t *lp, entry_1, entry_2;
5142 int i;
5143
5144 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5145 if (!target_ldt_info)
5146 return -TARGET_EFAULT;
5147 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5148 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 5149 ldt_info.limit = tswap32(target_ldt_info->limit);
5150 ldt_info.flags = tswap32(target_ldt_info->flags);
5151 if (ldt_info.entry_number == -1) {
5152 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5153 if (gdt_table[i] == 0) {
5154 ldt_info.entry_number = i;
5155 target_ldt_info->entry_number = tswap32(i);
5156 break;
5157 }
5158 }
5159 }
5160 unlock_user_struct(target_ldt_info, ptr, 1);
5161
5162 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5163 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5164 return -TARGET_EINVAL;
5165 seg_32bit = ldt_info.flags & 1;
5166 contents = (ldt_info.flags >> 1) & 3;
5167 read_exec_only = (ldt_info.flags >> 3) & 1;
5168 limit_in_pages = (ldt_info.flags >> 4) & 1;
5169 seg_not_present = (ldt_info.flags >> 5) & 1;
5170 useable = (ldt_info.flags >> 6) & 1;
5171#ifdef TARGET_ABI32
5172 lm = 0;
5173#else
5174 lm = (ldt_info.flags >> 7) & 1;
5175#endif
5176
5177 if (contents == 3) {
5178 if (seg_not_present == 0)
5179 return -TARGET_EINVAL;
5180 }
5181
5182 /* NOTE: same code as Linux kernel */
5183 /* Allow LDTs to be cleared by the user. */
5184 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5185 if ((contents == 0 &&
5186 read_exec_only == 1 &&
5187 seg_32bit == 0 &&
5188 limit_in_pages == 0 &&
5189 seg_not_present == 1 &&
5190 useable == 0 )) {
5191 entry_1 = 0;
5192 entry_2 = 0;
5193 goto install;
5194 }
5195 }
5196
5197 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5198 (ldt_info.limit & 0x0ffff);
5199 entry_2 = (ldt_info.base_addr & 0xff000000) |
5200 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5201 (ldt_info.limit & 0xf0000) |
5202 ((read_exec_only ^ 1) << 9) |
5203 (contents << 10) |
5204 ((seg_not_present ^ 1) << 15) |
5205 (seg_32bit << 22) |
5206 (limit_in_pages << 23) |
5207 (useable << 20) |
5208 (lm << 21) |
5209 0x7000;
5210
5211 /* Install the new entry ... */
5212install:
5213 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5214 lp[0] = tswap32(entry_1);
5215 lp[1] = tswap32(entry_2);
5216 return 0;
5217}
5218
8fcd3692 5219static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5220{
5221 struct target_modify_ldt_ldt_s *target_ldt_info;
5222 uint64_t *gdt_table = g2h(env->gdt.base);
5223 uint32_t base_addr, limit, flags;
5224 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5225 int seg_not_present, useable, lm;
5226 uint32_t *lp, entry_1, entry_2;
5227
5228 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5229 if (!target_ldt_info)
5230 return -TARGET_EFAULT;
5231 idx = tswap32(target_ldt_info->entry_number);
5232 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5233 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5234 unlock_user_struct(target_ldt_info, ptr, 1);
5235 return -TARGET_EINVAL;
5236 }
5237 lp = (uint32_t *)(gdt_table + idx);
5238 entry_1 = tswap32(lp[0]);
5239 entry_2 = tswap32(lp[1]);
5240
5241 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5242 contents = (entry_2 >> 10) & 3;
5243 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5244 seg_32bit = (entry_2 >> 22) & 1;
5245 limit_in_pages = (entry_2 >> 23) & 1;
5246 useable = (entry_2 >> 20) & 1;
5247#ifdef TARGET_ABI32
5248 lm = 0;
5249#else
5250 lm = (entry_2 >> 21) & 1;
5251#endif
5252 flags = (seg_32bit << 0) | (contents << 1) |
5253 (read_exec_only << 3) | (limit_in_pages << 4) |
5254 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5255 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5256 base_addr = (entry_1 >> 16) |
5257 (entry_2 & 0xff000000) |
5258 ((entry_2 & 0xff) << 16);
cbb21eed 5259 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 5260 target_ldt_info->limit = tswap32(limit);
5261 target_ldt_info->flags = tswap32(flags);
5262 unlock_user_struct(target_ldt_info, ptr, 1);
5263 return 0;
5264}
4583f589 5265#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 5266
d2fd1af7 5267#ifndef TARGET_ABI32
2667e71c 5268abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 5269{
1add8698 5270 abi_long ret = 0;
d2fd1af7
FB		 5271 abi_ulong val;
5272 int idx;
1add8698 5273
d2fd1af7
FB		 5274 switch(code) {
5275 case TARGET_ARCH_SET_GS:
5276 case TARGET_ARCH_SET_FS:
5277 if (code == TARGET_ARCH_SET_GS)
5278 idx = R_GS;
5279 else
5280 idx = R_FS;
5281 cpu_x86_load_seg(env, idx, 0);
5282 env->segs[idx].base = addr;
5283 break;
5284 case TARGET_ARCH_GET_GS:
5285 case TARGET_ARCH_GET_FS:
5286 if (code == TARGET_ARCH_GET_GS)
5287 idx = R_GS;
5288 else
5289 idx = R_FS;
5290 val = env->segs[idx].base;
5291 if (put_user(val, addr, abi_ulong))
1add8698 5292 ret = -TARGET_EFAULT;
d2fd1af7
FB		 5293 break;
5294 default:
5295 ret = -TARGET_EINVAL;
5296 break;
5297 }
1add8698 5298 return ret;
d2fd1af7
FB		 5299}
5300#endif
5301
2ab83ea7
FB		 5302#endif /* defined(TARGET_I386) */
5303
05098a93 5304#define NEW_STACK_SIZE 0x40000
d865bab5 5305
d865bab5
PB		 5306
5307static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5308typedef struct {
9349b4f9 5309 CPUArchState *env;
d865bab5
PB		 5310 pthread_mutex_t mutex;
5311 pthread_cond_t cond;
5312 pthread_t thread;
5313 uint32_t tid;
5314 abi_ulong child_tidptr;
5315 abi_ulong parent_tidptr;
5316 sigset_t sigmask;
5317} new_thread_info;
5318
5319static void *clone_func(void *arg)
5320{
5321 new_thread_info *info = arg;
9349b4f9 5322 CPUArchState *env;
0d34282f 5323 CPUState *cpu;
edf8e2af 5324 TaskState *ts;
d865bab5 5325
70903763 5326 rcu_register_thread();
d865bab5 5327 env = info->env;
0d34282f 5328 cpu = ENV_GET_CPU(env);
a2247f8e 5329 thread_cpu = cpu;
0429a971 5330 ts = (TaskState *)cpu->opaque;
d865bab5 5331 info->tid = gettid();
0d34282f 5332 cpu->host_tid = info->tid;
edf8e2af 5333 task_settid(ts);
d865bab5
PB		 5334 if (info->child_tidptr)
5335 put_user_u32(info->tid, info->child_tidptr);
5336 if (info->parent_tidptr)
5337 put_user_u32(info->tid, info->parent_tidptr);
5338 /* Enable signals. */
5339 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5340 /* Signal to the parent that we're ready. */
5341 pthread_mutex_lock(&info->mutex);
5342 pthread_cond_broadcast(&info->cond);
5343 pthread_mutex_unlock(&info->mutex);
5344 /* Wait until the parent has finshed initializing the tls state. */
5345 pthread_mutex_lock(&clone_lock);
5346 pthread_mutex_unlock(&clone_lock);
5347 cpu_loop(env);
5348 /* never exits */
5349 return NULL;
5350}
1b6b029e 5351
0da46a6e
TS		 5352/* do_fork() Must return host values and target errnos (unlike most
5353 do_*() functions). */
9349b4f9 5354static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 5355 abi_ulong parent_tidptr, target_ulong newtls,
5356 abi_ulong child_tidptr)
1b6b029e 5357{
0429a971 5358 CPUState *cpu = ENV_GET_CPU(env);
1b6b029e 5359 int ret;
5cd4393b 5360 TaskState *ts;
0429a971 5361 CPUState *new_cpu;
9349b4f9 5362 CPUArchState *new_env;
d865bab5
PB		 5363 unsigned int nptl_flags;
5364 sigset_t sigmask;
3b46e624 5365
436d124b
AZ		 5366 /* Emulate vfork() with fork() */
5367 if (flags & CLONE_VFORK)
5368 flags &= ~(CLONE_VFORK | CLONE_VM);
5369
1b6b029e 5370 if (flags & CLONE_VM) {
0429a971 5371 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5372 new_thread_info info;
5373 pthread_attr_t attr;
24cb36a6 5374
c78d65e8 5375 ts = g_new0(TaskState, 1);
624f7979 5376 init_task_state(ts);
1b6b029e 5377 /* we create a new CPU instance. */
c5be9f08 5378 new_env = cpu_copy(env);
6e68e076
PB		 5379 /* Init regs that differ from the parent. */
5380 cpu_clone_regs(new_env, newsp);
0429a971
AF		 5381 new_cpu = ENV_GET_CPU(new_env);
5382 new_cpu->opaque = ts;
edf8e2af
MW		 5383 ts->bprm = parent_ts->bprm;
5384 ts->info = parent_ts->info;
3d3efba0 5385 ts->signal_mask = parent_ts->signal_mask;
d865bab5
PB		 5386 nptl_flags = flags;
5387 flags &= ~CLONE_NPTL_FLAGS2;
5388
c2764719
PB		 5389 if (nptl_flags & CLONE_CHILD_CLEARTID) {
5390 ts->child_tidptr = child_tidptr;
5391 }
5392
d865bab5
PB		 5393 if (nptl_flags & CLONE_SETTLS)
5394 cpu_set_tls (new_env, newtls);
5395
5396 /* Grab a mutex so that thread setup appears atomic. */
5397 pthread_mutex_lock(&clone_lock);
5398
5399 memset(&info, 0, sizeof(info));
5400 pthread_mutex_init(&info.mutex, NULL);
5401 pthread_mutex_lock(&info.mutex);
5402 pthread_cond_init(&info.cond, NULL);
5403 info.env = new_env;
5404 if (nptl_flags & CLONE_CHILD_SETTID)
5405 info.child_tidptr = child_tidptr;
5406 if (nptl_flags & CLONE_PARENT_SETTID)
5407 info.parent_tidptr = parent_tidptr;
5408
5409 ret = pthread_attr_init(&attr);
48e15fc2
NF		 5410 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5411 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 5412 /* It is not safe to deliver signals until the child has finished
5413 initializing, so temporarily block all signals. */
5414 sigfillset(&sigmask);
5415 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5416
5417 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 5418 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 5419
5420 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5421 pthread_attr_destroy(&attr);
5422 if (ret == 0) {
5423 /* Wait for the child to initialize. */
5424 pthread_cond_wait(&info.cond, &info.mutex);
5425 ret = info.tid;
5426 if (flags & CLONE_PARENT_SETTID)
5427 put_user_u32(ret, parent_tidptr);
5428 } else {
5429 ret = -1;
5430 }
5431 pthread_mutex_unlock(&info.mutex);
5432 pthread_cond_destroy(&info.cond);
5433 pthread_mutex_destroy(&info.mutex);
5434 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 5435 } else {
5436 /* if no CLONE_VM, we consider it is a fork */
93b4eff8
TB		 5437 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) {
5438 return -TARGET_EINVAL;
5439 }
7d92d34e
TB		 5440
5441 if (block_signals()) {
5442 return -TARGET_ERESTARTSYS;
5443 }
5444
d865bab5 5445 fork_start();
1b6b029e 5446 ret = fork();
d865bab5 5447 if (ret == 0) {
2b1319c8 5448 /* Child Process. */
a59629fc 5449 rcu_after_fork();
d865bab5
PB		 5450 cpu_clone_regs(env, newsp);
5451 fork_end(1);
2b1319c8
AJ		 5452 /* There is a race condition here. The parent process could
5453 theoretically read the TID in the child process before the child
5454 tid is set. This would require using either ptrace
5455 (not implemented) or having *_tidptr to point at a shared memory
5456 mapping. We can't repeat the spinlock hack used above because
5457 the child process gets its own copy of the lock. */
d865bab5
PB		 5458 if (flags & CLONE_CHILD_SETTID)
5459 put_user_u32(gettid(), child_tidptr);
5460 if (flags & CLONE_PARENT_SETTID)
5461 put_user_u32(gettid(), parent_tidptr);
0429a971 5462 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5463 if (flags & CLONE_SETTLS)
5464 cpu_set_tls (env, newtls);
c2764719
PB		 5465 if (flags & CLONE_CHILD_CLEARTID)
5466 ts->child_tidptr = child_tidptr;
d865bab5
PB		 5467 } else {
5468 fork_end(0);
5469 }
1b6b029e
FB		 5470 }
5471 return ret;
5472}
5473
5f106811
APR		 5474/* warning : doesn't handle linux specific flags... */
5475static int target_to_host_fcntl_cmd(int cmd)
5476{
5477 switch(cmd) {
5478 case TARGET_F_DUPFD:
5479 case TARGET_F_GETFD:
5480 case TARGET_F_SETFD:
5481 case TARGET_F_GETFL:
5482 case TARGET_F_SETFL:
5483 return cmd;
5484 case TARGET_F_GETLK:
5485 return F_GETLK;
5486 case TARGET_F_SETLK:
5487 return F_SETLK;
5488 case TARGET_F_SETLKW:
5489 return F_SETLKW;
5490 case TARGET_F_GETOWN:
5491 return F_GETOWN;
5492 case TARGET_F_SETOWN:
5493 return F_SETOWN;
5494 case TARGET_F_GETSIG:
5495 return F_GETSIG;
5496 case TARGET_F_SETSIG:
5497 return F_SETSIG;
5498#if TARGET_ABI_BITS == 32
5499 case TARGET_F_GETLK64:
5500 return F_GETLK64;
5501 case TARGET_F_SETLK64:
5502 return F_SETLK64;
5503 case TARGET_F_SETLKW64:
5504 return F_SETLKW64;
5505#endif
7e22e546
UH		 5506 case TARGET_F_SETLEASE:
5507 return F_SETLEASE;
5508 case TARGET_F_GETLEASE:
5509 return F_GETLEASE;
fbd5de9b 5510#ifdef F_DUPFD_CLOEXEC
7e22e546
UH		 5511 case TARGET_F_DUPFD_CLOEXEC:
5512 return F_DUPFD_CLOEXEC;
fbd5de9b 5513#endif
7e22e546
UH		 5514 case TARGET_F_NOTIFY:
5515 return F_NOTIFY;
8d5d3004
AS		 5516#ifdef F_GETOWN_EX
5517 case TARGET_F_GETOWN_EX:
5518 return F_GETOWN_EX;
5519#endif
5520#ifdef F_SETOWN_EX
5521 case TARGET_F_SETOWN_EX:
5522 return F_SETOWN_EX;
5523#endif
5f106811
APR		 5524 default:
5525 return -TARGET_EINVAL;
5526 }
5527 return -TARGET_EINVAL;
5528}
5529
2ba7f730
LV		 5530#define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a }
5531static const bitmask_transtbl flock_tbl[] = {
5532 TRANSTBL_CONVERT(F_RDLCK),
5533 TRANSTBL_CONVERT(F_WRLCK),
5534 TRANSTBL_CONVERT(F_UNLCK),
5535 TRANSTBL_CONVERT(F_EXLCK),
5536 TRANSTBL_CONVERT(F_SHLCK),
5537 { 0, 0, 0, 0 }
5538};
5539
992f48a0 5540static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
7775e9ec
FB		 5541{
5542 struct flock fl;
53a5960a 5543 struct target_flock *target_fl;
43f238d7
TS		 5544 struct flock64 fl64;
5545 struct target_flock64 *target_fl64;
8d5d3004
AS		 5546#ifdef F_GETOWN_EX
5547 struct f_owner_ex fox;
5548 struct target_f_owner_ex *target_fox;
5549#endif
992f48a0 5550 abi_long ret;
5f106811
APR		 5551 int host_cmd = target_to_host_fcntl_cmd(cmd);
5552
5553 if (host_cmd == -TARGET_EINVAL)
5554 return host_cmd;
53a5960a 5555
7775e9ec
FB		 5556 switch(cmd) {
5557 case TARGET_F_GETLK:
579a97f7
FB		 5558 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
5559 return -TARGET_EFAULT;
2ba7f730
LV		 5560 fl.l_type =
5561 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
5813427b 5562 fl.l_whence = tswap16(target_fl->l_whence);
cbb21eed
MB		 5563 fl.l_start = tswapal(target_fl->l_start);
5564 fl.l_len = tswapal(target_fl->l_len);
7e22e546 5565 fl.l_pid = tswap32(target_fl->l_pid);
5813427b 5566 unlock_user_struct(target_fl, arg, 0);
5f106811 5567 ret = get_errno(fcntl(fd, host_cmd, &fl));
7775e9ec 5568 if (ret == 0) {
579a97f7
FB		 5569 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
5570 return -TARGET_EFAULT;
2ba7f730
LV		 5571 target_fl->l_type =
5572 host_to_target_bitmask(tswap16(fl.l_type), flock_tbl);
7775e9ec 5573 target_fl->l_whence = tswap16(fl.l_whence);
cbb21eed
MB		 5574 target_fl->l_start = tswapal(fl.l_start);
5575 target_fl->l_len = tswapal(fl.l_len);
7e22e546 5576 target_fl->l_pid = tswap32(fl.l_pid);
53a5960a 5577 unlock_user_struct(target_fl, arg, 1);
7775e9ec
FB		 5578 }
5579 break;
3b46e624 5580
7775e9ec
FB		 5581 case TARGET_F_SETLK:
5582 case TARGET_F_SETLKW:
579a97f7
FB		 5583 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
5584 return -TARGET_EFAULT;
2ba7f730
LV		 5585 fl.l_type =
5586 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
7775e9ec 5587 fl.l_whence = tswap16(target_fl->l_whence);
cbb21eed
MB		 5588 fl.l_start = tswapal(target_fl->l_start);
5589 fl.l_len = tswapal(target_fl->l_len);
7e22e546 5590 fl.l_pid = tswap32(target_fl->l_pid);
53a5960a 5591 unlock_user_struct(target_fl, arg, 0);
5f106811 5592 ret = get_errno(fcntl(fd, host_cmd, &fl));
7775e9ec 5593 break;
3b46e624 5594
7775e9ec 5595 case TARGET_F_GETLK64:
579a97f7
FB		 5596 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
5597 return -TARGET_EFAULT;
2ba7f730
LV		 5598 fl64.l_type =
5599 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
5813427b 5600 fl64.l_whence = tswap16(target_fl64->l_whence);
cbb21eed
MB		 5601 fl64.l_start = tswap64(target_fl64->l_start);
5602 fl64.l_len = tswap64(target_fl64->l_len);
7e22e546 5603 fl64.l_pid = tswap32(target_fl64->l_pid);
5813427b 5604 unlock_user_struct(target_fl64, arg, 0);
5f106811 5605 ret = get_errno(fcntl(fd, host_cmd, &fl64));
43f238d7 5606 if (ret == 0) {
579a97f7
FB		 5607 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
5608 return -TARGET_EFAULT;
2ba7f730
LV		 5609 target_fl64->l_type =
5610 host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1;
43f238d7 5611 target_fl64->l_whence = tswap16(fl64.l_whence);
cbb21eed
MB		 5612 target_fl64->l_start = tswap64(fl64.l_start);
5613 target_fl64->l_len = tswap64(fl64.l_len);
7e22e546 5614 target_fl64->l_pid = tswap32(fl64.l_pid);
43f238d7
TS		 5615 unlock_user_struct(target_fl64, arg, 1);
5616 }
9ee1fa2c 5617 break;
7775e9ec
FB		 5618 case TARGET_F_SETLK64:
5619 case TARGET_F_SETLKW64:
579a97f7
FB		 5620 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
5621 return -TARGET_EFAULT;
2ba7f730
LV		 5622 fl64.l_type =
5623 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
43f238d7 5624 fl64.l_whence = tswap16(target_fl64->l_whence);
cbb21eed
MB		 5625 fl64.l_start = tswap64(target_fl64->l_start);
5626 fl64.l_len = tswap64(target_fl64->l_len);
7e22e546 5627 fl64.l_pid = tswap32(target_fl64->l_pid);
43f238d7 5628 unlock_user_struct(target_fl64, arg, 0);
5f106811 5629 ret = get_errno(fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 5630 break;
5631
5f106811
APR		 5632 case TARGET_F_GETFL:
5633 ret = get_errno(fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 5634 if (ret >= 0) {
5635 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
5636 }
ffa65c3b
FB		 5637 break;
5638
5f106811
APR		 5639 case TARGET_F_SETFL:
5640 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
5641 break;
5642
8d5d3004
AS		 5643#ifdef F_GETOWN_EX
5644 case TARGET_F_GETOWN_EX:
5645 ret = get_errno(fcntl(fd, host_cmd, &fox));
5646 if (ret >= 0) {
5647 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
5648 return -TARGET_EFAULT;
5649 target_fox->type = tswap32(fox.type);
5650 target_fox->pid = tswap32(fox.pid);
5651 unlock_user_struct(target_fox, arg, 1);
5652 }
5653 break;
5654#endif
5655
5656#ifdef F_SETOWN_EX
5657 case TARGET_F_SETOWN_EX:
5658 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
5659 return -TARGET_EFAULT;
5660 fox.type = tswap32(target_fox->type);
5661 fox.pid = tswap32(target_fox->pid);
5662 unlock_user_struct(target_fox, arg, 0);
5663 ret = get_errno(fcntl(fd, host_cmd, &fox));
5664 break;
5665#endif
5666
5f106811
APR		 5667 case TARGET_F_SETOWN:
5668 case TARGET_F_GETOWN:
5669 case TARGET_F_SETSIG:
5670 case TARGET_F_GETSIG:
7e22e546
UH		 5671 case TARGET_F_SETLEASE:
5672 case TARGET_F_GETLEASE:
5f106811 5673 ret = get_errno(fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 5674 break;
5675
7775e9ec 5676 default:
9ee1fa2c 5677 ret = get_errno(fcntl(fd, cmd, arg));
7775e9ec
FB		 5678 break;
5679 }
5680 return ret;
5681}
5682
67867308 5683#ifdef USE_UID16
7775e9ec 5684
67867308
FB		 5685static inline int high2lowuid(int uid)
5686{
5687 if (uid > 65535)
5688 return 65534;
5689 else
5690 return uid;
5691}
5692
5693static inline int high2lowgid(int gid)
5694{
5695 if (gid > 65535)
5696 return 65534;
5697 else
5698 return gid;
5699}
5700
5701static inline int low2highuid(int uid)
5702{
5703 if ((int16_t)uid == -1)
5704 return -1;
5705 else
5706 return uid;
5707}
5708
5709static inline int low2highgid(int gid)
5710{
5711 if ((int16_t)gid == -1)
5712 return -1;
5713 else
5714 return gid;
5715}
0c866a7e
RV		 5716static inline int tswapid(int id)
5717{
5718 return tswap16(id);
5719}
76ca310a
PM		 5720
5721#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
5722
0c866a7e
RV		 5723#else /* !USE_UID16 */
5724static inline int high2lowuid(int uid)
5725{
5726 return uid;
5727}
5728static inline int high2lowgid(int gid)
5729{
5730 return gid;
5731}
5732static inline int low2highuid(int uid)
5733{
5734 return uid;
5735}
5736static inline int low2highgid(int gid)
5737{
5738 return gid;
5739}
5740static inline int tswapid(int id)
5741{
5742 return tswap32(id);
5743}
76ca310a
PM		 5744
5745#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
5746
67867308 5747#endif /* USE_UID16 */
1b6b029e 5748
fd6f7798
PM		 5749/* We must do direct syscalls for setting UID/GID, because we want to
5750 * implement the Linux system call semantics of "change only for this thread",
5751 * not the libc/POSIX semantics of "change for all threads in process".
5752 * (See http://ewontfix.com/17/ for more details.)
5753 * We use the 32-bit version of the syscalls if present; if it is not
5754 * then either the host architecture supports 32-bit UIDs natively with
5755 * the standard syscall, or the 16-bit UID is the best we can do.
5756 */
5757#ifdef __NR_setuid32
5758#define __NR_sys_setuid __NR_setuid32
5759#else
5760#define __NR_sys_setuid __NR_setuid
5761#endif
5762#ifdef __NR_setgid32
5763#define __NR_sys_setgid __NR_setgid32
5764#else
5765#define __NR_sys_setgid __NR_setgid
5766#endif
5767#ifdef __NR_setresuid32
5768#define __NR_sys_setresuid __NR_setresuid32
5769#else
5770#define __NR_sys_setresuid __NR_setresuid
5771#endif
5772#ifdef __NR_setresgid32
5773#define __NR_sys_setresgid __NR_setresgid32
5774#else
5775#define __NR_sys_setresgid __NR_setresgid
5776#endif
5777
5778_syscall1(int, sys_setuid, uid_t, uid)
5779_syscall1(int, sys_setgid, gid_t, gid)
5780_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
5781_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
5782
31e31b8a
FB		 5783void syscall_init(void)
5784{
2ab83ea7
FB		 5785 IOCTLEntry *ie;
5786 const argtype *arg_type;
5787 int size;
b92c47c1 5788 int i;
2ab83ea7 5789
8be656b8
AG		 5790 thunk_init(STRUCT_MAX);
5791
001faf32 5792#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 5793#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 5794#include "syscall_types.h"
5795#undef STRUCT
5796#undef STRUCT_SPECIAL
2ab83ea7 5797
dd6e957a
PM		 5798 /* Build target_to_host_errno_table[] table from
5799 * host_to_target_errno_table[]. */
5800 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
5801 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
5802 }
5803
2ab83ea7
FB		 5804 /* we patch the ioctl size if necessary. We rely on the fact that
5805 no ioctl has all the bits at '1' in the size field */
5806 ie = ioctl_entries;
5807 while (ie->target_cmd != 0) {
5808 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
5809 TARGET_IOC_SIZEMASK) {
5810 arg_type = ie->arg_type;
5811 if (arg_type[0] != TYPE_PTR) {
5fafdf24 5812 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 5813 ie->target_cmd);
5814 exit(1);
5815 }
5816 arg_type++;
5817 size = thunk_type_size(arg_type, 0);
5fafdf24 5818 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 5819 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
5820 (size << TARGET_IOC_SIZESHIFT);
5821 }
b92c47c1 5822
2ab83ea7 5823 /* automatic consistency check if same arch */
872ea0c0
AZ		 5824#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
5825 (defined(__x86_64__) && defined(TARGET_X86_64))
5826 if (unlikely(ie->target_cmd != ie->host_cmd)) {
5827 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
5828 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 5829 }
5830#endif
5831 ie++;
5832 }
31e31b8a 5833}
c573ff67 5834
992f48a0 5835#if TARGET_ABI_BITS == 32
ce4defa0
PB		 5836static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
5837{
af325d36 5838#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 5839 return ((uint64_t)word0 << 32) | word1;
5840#else
5841 return ((uint64_t)word1 << 32) | word0;
5842#endif
5843}
992f48a0 5844#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 5845static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
5846{
5847 return word0;
5848}
992f48a0 5849#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 5850
5851#ifdef TARGET_NR_truncate64
992f48a0
BS		 5852static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
5853 abi_long arg2,
5854 abi_long arg3,
5855 abi_long arg4)
ce4defa0 5856{
48e515d4 5857 if (regpairs_aligned(cpu_env)) {
ce4defa0
PB		 5858 arg2 = arg3;
5859 arg3 = arg4;
48e515d4 5860 }
ce4defa0
PB		 5861 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
5862}
5863#endif
5864
5865#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 5866static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
5867 abi_long arg2,
5868 abi_long arg3,
5869 abi_long arg4)
ce4defa0 5870{
48e515d4 5871 if (regpairs_aligned(cpu_env)) {
ce4defa0
PB		 5872 arg2 = arg3;
5873 arg3 = arg4;
48e515d4 5874 }
ce4defa0
PB		 5875 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
5876}
5877#endif
5878
579a97f7
FB		 5879static inline abi_long target_to_host_timespec(struct timespec *host_ts,
5880 abi_ulong target_addr)
53a5960a
PB		 5881{
5882 struct target_timespec *target_ts;
5883
579a97f7
FB		 5884 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
5885 return -TARGET_EFAULT;
c7e35da3
PM		 5886 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
5887 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 5888 unlock_user_struct(target_ts, target_addr, 0);
b255bfa8 5889 return 0;
53a5960a
PB		 5890}
5891
579a97f7
FB		 5892static inline abi_long host_to_target_timespec(abi_ulong target_addr,
5893 struct timespec *host_ts)
53a5960a
PB		 5894{
5895 struct target_timespec *target_ts;
5896
579a97f7
FB		 5897 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
5898 return -TARGET_EFAULT;
c7e35da3
PM		 5899 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
5900 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 5901 unlock_user_struct(target_ts, target_addr, 1);
b255bfa8 5902 return 0;
53a5960a
PB		 5903}
5904
f4f1e10a
ECL		 5905static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
5906 abi_ulong target_addr)
5907{
5908 struct target_itimerspec *target_itspec;
5909
5910 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
5911 return -TARGET_EFAULT;
5912 }
5913
5914 host_itspec->it_interval.tv_sec =
5915 tswapal(target_itspec->it_interval.tv_sec);
5916 host_itspec->it_interval.tv_nsec =
5917 tswapal(target_itspec->it_interval.tv_nsec);
5918 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
5919 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
5920
5921 unlock_user_struct(target_itspec, target_addr, 1);
5922 return 0;
5923}
5924
5925static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
5926 struct itimerspec *host_its)
5927{
5928 struct target_itimerspec *target_itspec;
5929
5930 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
5931 return -TARGET_EFAULT;
5932 }
5933
5934 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
5935 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
5936
5937 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
5938 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
5939
5940 unlock_user_struct(target_itspec, target_addr, 0);
5941 return 0;
5942}
5943
c065976f
PM		 5944static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
5945 abi_ulong target_addr)
5946{
5947 struct target_sigevent *target_sevp;
5948
5949 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
5950 return -TARGET_EFAULT;
5951 }
5952
5953 /* This union is awkward on 64 bit systems because it has a 32 bit
5954 * integer and a pointer in it; we follow the conversion approach
5955 * used for handling sigval types in signal.c so the guest should get
5956 * the correct value back even if we did a 64 bit byteswap and it's
5957 * using the 32 bit integer.
5958 */
5959 host_sevp->sigev_value.sival_ptr =
5960 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
5961 host_sevp->sigev_signo =
5962 target_to_host_signal(tswap32(target_sevp->sigev_signo));
5963 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
5964 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
5965
5966 unlock_user_struct(target_sevp, target_addr, 1);
5967 return 0;
5968}
5969
6f6a4032
TM		 5970#if defined(TARGET_NR_mlockall)
5971static inline int target_to_host_mlockall_arg(int arg)
5972{
5973 int result = 0;
5974
5975 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
5976 result |= MCL_CURRENT;
5977 }
5978 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
5979 result |= MCL_FUTURE;
5980 }
5981 return result;
5982}
5983#endif
5984
6a24a778
AZ		 5985static inline abi_long host_to_target_stat64(void *cpu_env,
5986 abi_ulong target_addr,
5987 struct stat *host_st)
5988{
09701199 5989#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 5990 if (((CPUARMState *)cpu_env)->eabi) {
5991 struct target_eabi_stat64 *target_st;
5992
5993 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
5994 return -TARGET_EFAULT;
5995 memset(target_st, 0, sizeof(struct target_eabi_stat64));
5996 __put_user(host_st->st_dev, &target_st->st_dev);
5997 __put_user(host_st->st_ino, &target_st->st_ino);
5998#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
5999 __put_user(host_st->st_ino, &target_st->__st_ino);
6000#endif
6001 __put_user(host_st->st_mode, &target_st->st_mode);
6002 __put_user(host_st->st_nlink, &target_st->st_nlink);
6003 __put_user(host_st->st_uid, &target_st->st_uid);
6004 __put_user(host_st->st_gid, &target_st->st_gid);
6005 __put_user(host_st->st_rdev, &target_st->st_rdev);
6006 __put_user(host_st->st_size, &target_st->st_size);
6007 __put_user(host_st->st_blksize, &target_st->st_blksize);
6008 __put_user(host_st->st_blocks, &target_st->st_blocks);
6009 __put_user(host_st->st_atime, &target_st->target_st_atime);
6010 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6011 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6012 unlock_user_struct(target_st, target_addr, 1);
6013 } else
6014#endif
6015 {
20d155bc 6016#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 6017 struct target_stat64 *target_st;
20d155bc
SW		 6018#else
6019 struct target_stat *target_st;
9d33b76b 6020#endif
6a24a778
AZ		 6021
6022 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6023 return -TARGET_EFAULT;
9d33b76b 6024 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 6025 __put_user(host_st->st_dev, &target_st->st_dev);
6026 __put_user(host_st->st_ino, &target_st->st_ino);
6027#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6028 __put_user(host_st->st_ino, &target_st->__st_ino);
6029#endif
6030 __put_user(host_st->st_mode, &target_st->st_mode);
6031 __put_user(host_st->st_nlink, &target_st->st_nlink);
6032 __put_user(host_st->st_uid, &target_st->st_uid);
6033 __put_user(host_st->st_gid, &target_st->st_gid);
6034 __put_user(host_st->st_rdev, &target_st->st_rdev);
6035 /* XXX: better use of kernel struct */
6036 __put_user(host_st->st_size, &target_st->st_size);
6037 __put_user(host_st->st_blksize, &target_st->st_blksize);
6038 __put_user(host_st->st_blocks, &target_st->st_blocks);
6039 __put_user(host_st->st_atime, &target_st->target_st_atime);
6040 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6041 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6042 unlock_user_struct(target_st, target_addr, 1);
6043 }
6044
6045 return 0;
6046}
6a24a778 6047
bd0c5661
PB		 6048/* ??? Using host futex calls even when target atomic operations
6049 are not really atomic probably breaks things. However implementing
6050 futexes locally would make futexes shared between multiple processes
6051 tricky. However they're probably useless because guest atomic
6052 operations won't work either. */
8fcd3692
BS		 6053static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6054 target_ulong uaddr2, int val3)
bd0c5661
PB		 6055{
6056 struct timespec ts, *pts;
a16aae0c 6057 int base_op;
bd0c5661
PB		 6058
6059 /* ??? We assume FUTEX_* constants are the same on both host
6060 and target. */
a29ccd63 6061#ifdef FUTEX_CMD_MASK
a16aae0c 6062 base_op = op & FUTEX_CMD_MASK;
a29ccd63 6063#else
a16aae0c 6064 base_op = op;
a29ccd63 6065#endif
a16aae0c 6066 switch (base_op) {
bd0c5661 6067 case FUTEX_WAIT:
cce246e0 6068 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 6069 if (timeout) {
6070 pts = &ts;
6071 target_to_host_timespec(pts, timeout);
6072 } else {
6073 pts = NULL;
6074 }
d509eeb1 6075 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
cce246e0 6076 pts, NULL, val3));
bd0c5661 6077 case FUTEX_WAKE:
d509eeb1 6078 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6079 case FUTEX_FD:
d509eeb1 6080 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6081 case FUTEX_REQUEUE:
bd0c5661 6082 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 6083 case FUTEX_WAKE_OP:
6084 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
6085 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
6086 But the prototype takes a `struct timespec *'; insert casts
6087 to satisfy the compiler. We do not need to tswap TIMEOUT
6088 since it's not compared to guest memory. */
6089 pts = (struct timespec *)(uintptr_t) timeout;
d509eeb1
PM		 6090 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6091 g2h(uaddr2),
6092 (base_op == FUTEX_CMP_REQUEUE
6093 ? tswap32(val3)
6094 : val3)));
bd0c5661
PB		 6095 default:
6096 return -TARGET_ENOSYS;
6097 }
6098}
0f0426f3
LV		 6099#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6100static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6101 abi_long handle, abi_long mount_id,
6102 abi_long flags)
6103{
6104 struct file_handle *target_fh;
6105 struct file_handle *fh;
6106 int mid = 0;
6107 abi_long ret;
6108 char *name;
6109 unsigned int size, total_size;
6110
6111 if (get_user_s32(size, handle)) {
6112 return -TARGET_EFAULT;
6113 }
6114
6115 name = lock_user_string(pathname);
6116 if (!name) {
6117 return -TARGET_EFAULT;
6118 }
6119
6120 total_size = sizeof(struct file_handle) + size;
6121 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6122 if (!target_fh) {
6123 unlock_user(name, pathname, 0);
6124 return -TARGET_EFAULT;
6125 }
6126
6127 fh = g_malloc0(total_size);
6128 fh->handle_bytes = size;
6129
6130 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6131 unlock_user(name, pathname, 0);
6132
6133 /* man name_to_handle_at(2):
6134 * Other than the use of the handle_bytes field, the caller should treat
6135 * the file_handle structure as an opaque data type
6136 */
6137
6138 memcpy(target_fh, fh, total_size);
6139 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6140 target_fh->handle_type = tswap32(fh->handle_type);
6141 g_free(fh);
6142 unlock_user(target_fh, handle, total_size);
6143
6144 if (put_user_s32(mid, mount_id)) {
6145 return -TARGET_EFAULT;
6146 }
6147
6148 return ret;
6149
6150}
6151#endif
6152
6153#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6154static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6155 abi_long flags)
6156{
6157 struct file_handle *target_fh;
6158 struct file_handle *fh;
6159 unsigned int size, total_size;
6160 abi_long ret;
6161
6162 if (get_user_s32(size, handle)) {
6163 return -TARGET_EFAULT;
6164 }
6165
6166 total_size = sizeof(struct file_handle) + size;
6167 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6168 if (!target_fh) {
6169 return -TARGET_EFAULT;
6170 }
6171
e9d49d51 6172 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 6173 fh->handle_bytes = size;
6174 fh->handle_type = tswap32(target_fh->handle_type);
6175
6176 ret = get_errno(open_by_handle_at(mount_fd, fh,
6177 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6178
6179 g_free(fh);
6180
6181 unlock_user(target_fh, handle, total_size);
6182
6183 return ret;
6184}
6185#endif
bd0c5661 6186
e36800c9
LV		 6187#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6188
6189/* signalfd siginfo conversion */
6190
6191static void
6192host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo,
6193 const struct signalfd_siginfo *info)
6194{
6195 int sig = host_to_target_signal(info->ssi_signo);
6196
6197 /* linux/signalfd.h defines a ssi_addr_lsb
6198 * not defined in sys/signalfd.h but used by some kernels
6199 */
6200
6201#ifdef BUS_MCEERR_AO
6202 if (tinfo->ssi_signo == SIGBUS &&
6203 (tinfo->ssi_code == BUS_MCEERR_AR ||
6204 tinfo->ssi_code == BUS_MCEERR_AO)) {
6205 uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1);
6206 uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1);
6207 *tssi_addr_lsb = tswap16(*ssi_addr_lsb);
6208 }
6209#endif
6210
6211 tinfo->ssi_signo = tswap32(sig);
6212 tinfo->ssi_errno = tswap32(tinfo->ssi_errno);
6213 tinfo->ssi_code = tswap32(info->ssi_code);
6214 tinfo->ssi_pid = tswap32(info->ssi_pid);
6215 tinfo->ssi_uid = tswap32(info->ssi_uid);
6216 tinfo->ssi_fd = tswap32(info->ssi_fd);
6217 tinfo->ssi_tid = tswap32(info->ssi_tid);
6218 tinfo->ssi_band = tswap32(info->ssi_band);
6219 tinfo->ssi_overrun = tswap32(info->ssi_overrun);
6220 tinfo->ssi_trapno = tswap32(info->ssi_trapno);
6221 tinfo->ssi_status = tswap32(info->ssi_status);
6222 tinfo->ssi_int = tswap32(info->ssi_int);
6223 tinfo->ssi_ptr = tswap64(info->ssi_ptr);
6224 tinfo->ssi_utime = tswap64(info->ssi_utime);
6225 tinfo->ssi_stime = tswap64(info->ssi_stime);
6226 tinfo->ssi_addr = tswap64(info->ssi_addr);
6227}
6228
5d4d3665 6229static abi_long host_to_target_data_signalfd(void *buf, size_t len)
e36800c9
LV		 6230{
6231 int i;
6232
6233 for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) {
6234 host_to_target_signalfd_siginfo(buf + i, buf + i);
6235 }
6236
6237 return len;
6238}
6239
6240static TargetFdTrans target_signalfd_trans = {
5d4d3665 6241 .host_to_target_data = host_to_target_data_signalfd,
e36800c9
LV		 6242};
6243
6244static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6245{
6246 int host_flags;
6247 target_sigset_t *target_mask;
6248 sigset_t host_mask;
6249 abi_long ret;
6250
6251 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6252 return -TARGET_EINVAL;
6253 }
6254 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6255 return -TARGET_EFAULT;
6256 }
6257
6258 target_to_host_sigset(&host_mask, target_mask);
6259
6260 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6261
6262 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6263 if (ret >= 0) {
6264 fd_trans_register(ret, &target_signalfd_trans);
6265 }
6266
6267 unlock_user_struct(target_mask, mask, 0);
6268
6269 return ret;
6270}
6271#endif
6272
1d9d8b55
PB		 6273/* Map host to target signal numbers for the wait family of syscalls.
6274 Assume all other status bits are the same. */
a05c6409 6275int host_to_target_waitstatus(int status)
1d9d8b55
PB		 6276{
6277 if (WIFSIGNALED(status)) {
6278 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6279 }
6280 if (WIFSTOPPED(status)) {
6281 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6282 | (status & 0xff);
6283 }
6284 return status;
6285}
6286
76b94245
WVS		 6287static int open_self_cmdline(void *cpu_env, int fd)
6288{
6289 int fd_orig = -1;
6290 bool word_skipped = false;
6291
6292 fd_orig = open("/proc/self/cmdline", O_RDONLY);
6293 if (fd_orig < 0) {
6294 return fd_orig;
6295 }
6296
6297 while (true) {
6298 ssize_t nb_read;
6299 char buf[128];
6300 char *cp_buf = buf;
6301
6302 nb_read = read(fd_orig, buf, sizeof(buf));
6303 if (nb_read < 0) {
a3ca7bb2 6304 int e = errno;
76b94245 6305 fd_orig = close(fd_orig);
a3ca7bb2 6306 errno = e;
76b94245
WVS		 6307 return -1;
6308 } else if (nb_read == 0) {
6309 break;
6310 }
6311
6312 if (!word_skipped) {
6313 /* Skip the first string, which is the path to qemu-*-static
6314 instead of the actual command. */
6315 cp_buf = memchr(buf, 0, sizeof(buf));
6316 if (cp_buf) {
6317 /* Null byte found, skip one string */
6318 cp_buf++;
6319 nb_read -= cp_buf - buf;
6320 word_skipped = true;
6321 }
6322 }
6323
6324 if (word_skipped) {
6325 if (write(fd, cp_buf, nb_read) != nb_read) {
a3ca7bb2 6326 int e = errno;
680dfde9 6327 close(fd_orig);
a3ca7bb2 6328 errno = e;
76b94245
WVS		 6329 return -1;
6330 }
6331 }
6332 }
6333
6334 return close(fd_orig);
6335}
6336
36c08d49
AG		 6337static int open_self_maps(void *cpu_env, int fd)
6338{
0429a971
AF		 6339 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6340 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 6341 FILE *fp;
6342 char *line = NULL;
6343 size_t len = 0;
6344 ssize_t read;
6345
6346 fp = fopen("/proc/self/maps", "r");
6347 if (fp == NULL) {
a3ca7bb2 6348 return -1;
1a49ef2a 6349 }
36c08d49 6350
1a49ef2a
AG		 6351 while ((read = getline(&line, &len, fp)) != -1) {
6352 int fields, dev_maj, dev_min, inode;
6353 uint64_t min, max, offset;
6354 char flag_r, flag_w, flag_x, flag_p;
6355 char path[512] = "";
6356 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6357 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6358 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6359
6360 if ((fields < 10) || (fields > 11)) {
6361 continue;
6362 }
d67f4aaa
MI		 6363 if (h2g_valid(min)) {
6364 int flags = page_get_flags(h2g(min));
6365 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX);
6366 if (page_check_range(h2g(min), max - min, flags) == -1) {
6367 continue;
6368 }
6369 if (h2g(min) == ts->info->stack_limit) {
6370 pstrcpy(path, sizeof(path), " [stack]");
6371 }
1a49ef2a 6372 dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
e24fed4e 6373 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
d67f4aaa 6374 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
1a49ef2a 6375 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 6376 path[0] ? " " : "", path);
1a49ef2a
AG		 6377 }
6378 }
6379
6380 free(line);
6381 fclose(fp);
6382
36c08d49
AG		 6383 return 0;
6384}
6385
480b8e7d
AG		 6386static int open_self_stat(void *cpu_env, int fd)
6387{
0429a971
AF		 6388 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6389 TaskState *ts = cpu->opaque;
480b8e7d
AG		 6390 abi_ulong start_stack = ts->info->start_stack;
6391 int i;
6392
6393 for (i = 0; i < 44; i++) {
6394 char buf[128];
6395 int len;
6396 uint64_t val = 0;
6397
e0e65bee
FE		 6398 if (i == 0) {
6399 /* pid */
6400 val = getpid();
6401 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6402 } else if (i == 1) {
6403 /* app name */
6404 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6405 } else if (i == 27) {
6406 /* stack bottom */
6407 val = start_stack;
6408 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6409 } else {
6410 /* for the rest, there is MasterCard */
6411 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 6412 }
e0e65bee 6413
480b8e7d
AG		 6414 len = strlen(buf);
6415 if (write(fd, buf, len) != len) {
6416 return -1;
6417 }
6418 }
6419
6420 return 0;
6421}
6422
257450ee
AG		 6423static int open_self_auxv(void *cpu_env, int fd)
6424{
0429a971
AF		 6425 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6426 TaskState *ts = cpu->opaque;
257450ee
AG		 6427 abi_ulong auxv = ts->info->saved_auxv;
6428 abi_ulong len = ts->info->auxv_len;
6429 char *ptr;
6430
6431 /*
6432 * Auxiliary vector is stored in target process stack.
6433 * read in whole auxv vector and copy it to file
6434 */
6435 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6436 if (ptr != NULL) {
6437 while (len > 0) {
6438 ssize_t r;
6439 r = write(fd, ptr, len);
6440 if (r <= 0) {
6441 break;
6442 }
6443 len -= r;
6444 ptr += r;
6445 }
6446 lseek(fd, 0, SEEK_SET);
6447 unlock_user(ptr, auxv, len);
6448 }
6449
6450 return 0;
6451}
6452
463d8e73
AS		 6453static int is_proc_myself(const char *filename, const char *entry)
6454{
6455 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6456 filename += strlen("/proc/");
6457 if (!strncmp(filename, "self/", strlen("self/"))) {
6458 filename += strlen("self/");
6459 } else if (*filename >= '1' && *filename <= '9') {
6460 char myself[80];
6461 snprintf(myself, sizeof(myself), "%d/", getpid());
6462 if (!strncmp(filename, myself, strlen(myself))) {
6463 filename += strlen(myself);
6464 } else {
6465 return 0;
6466 }
6467 } else {
6468 return 0;
6469 }
6470 if (!strcmp(filename, entry)) {
6471 return 1;
6472 }
6473 }
6474 return 0;
6475}
6476
de6b9933
LV		 6477#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6478static int is_proc(const char *filename, const char *entry)
6479{
6480 return strcmp(filename, entry) == 0;
6481}
6482
6483static int open_net_route(void *cpu_env, int fd)
6484{
6485 FILE *fp;
6486 char *line = NULL;
6487 size_t len = 0;
6488 ssize_t read;
6489
6490 fp = fopen("/proc/net/route", "r");
6491 if (fp == NULL) {
a3ca7bb2 6492 return -1;
de6b9933
LV		 6493 }
6494
6495 /* read header */
6496
6497 read = getline(&line, &len, fp);
6498 dprintf(fd, "%s", line);
6499
6500 /* read routes */
6501
6502 while ((read = getline(&line, &len, fp)) != -1) {
6503 char iface[16];
6504 uint32_t dest, gw, mask;
6505 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
6506 sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6507 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
6508 &mask, &mtu, &window, &irtt);
6509 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6510 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
6511 metric, tswap32(mask), mtu, window, irtt);
6512 }
6513
6514 free(line);
6515 fclose(fp);
6516
6517 return 0;
6518}
6519#endif
6520
0b2effd7 6521static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 6522{
6523 struct fake_open {
6524 const char *filename;
6525 int (*fill)(void *cpu_env, int fd);
de6b9933 6526 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 6527 };
6528 const struct fake_open *fake_open;
6529 static const struct fake_open fakes[] = {
de6b9933
LV		 6530 { "maps", open_self_maps, is_proc_myself },
6531 { "stat", open_self_stat, is_proc_myself },
6532 { "auxv", open_self_auxv, is_proc_myself },
76b94245 6533 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 6534#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6535 { "/proc/net/route", open_net_route, is_proc },
6536#endif
6537 { NULL, NULL, NULL }
3be14d05
AG		 6538 };
6539
aa07f5ec
MO		 6540 if (is_proc_myself(pathname, "exe")) {
6541 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 6542 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 6543 }
6544
3be14d05 6545 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 6546 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 6547 break;
6548 }
6549 }
6550
6551 if (fake_open->filename) {
6552 const char *tmpdir;
6553 char filename[PATH_MAX];
6554 int fd, r;
6555
6556 /* create temporary file to map stat to */
6557 tmpdir = getenv("TMPDIR");
6558 if (!tmpdir)
6559 tmpdir = "/tmp";
6560 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
6561 fd = mkstemp(filename);
6562 if (fd < 0) {
6563 return fd;
6564 }
6565 unlink(filename);
6566
6567 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 6568 int e = errno;
3be14d05 6569 close(fd);
a3ca7bb2 6570 errno = e;
3be14d05
AG		 6571 return r;
6572 }
6573 lseek(fd, 0, SEEK_SET);
6574
6575 return fd;
6576 }
6577
c10a0738 6578 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 6579}
6580
aecc8861
AG		 6581#define TIMER_MAGIC 0x0caf0000
6582#define TIMER_MAGIC_MASK 0xffff0000
6583
6584/* Convert QEMU provided timer ID back to internal 16bit index format */
6585static target_timer_t get_timer_id(abi_long arg)
6586{
6587 target_timer_t timerid = arg;
6588
6589 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
6590 return -TARGET_EINVAL;
6591 }
6592
6593 timerid &= 0xffff;
6594
6595 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
6596 return -TARGET_EINVAL;
6597 }
6598
6599 return timerid;
6600}
6601
0da46a6e
TS		 6602/* do_syscall() should always have a single exit point at the end so
6603 that actions, such as logging of syscall results, can be performed.
6604 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
992f48a0
BS		 6605abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
6606 abi_long arg2, abi_long arg3, abi_long arg4,
5945cfcb
PM		 6607 abi_long arg5, abi_long arg6, abi_long arg7,
6608 abi_long arg8)
31e31b8a 6609{
182735ef 6610 CPUState *cpu = ENV_GET_CPU(cpu_env);
992f48a0 6611 abi_long ret;
31e31b8a 6612 struct stat st;
56c8f68f 6613 struct statfs stfs;
53a5960a 6614 void *p;
3b46e624 6615
71a8f7fe
TB		 6616#if defined(DEBUG_ERESTARTSYS)
6617 /* Debug-only code for exercising the syscall-restart code paths
6618 * in the per-architecture cpu main loops: restart every syscall
6619 * the guest makes once before letting it through.
6620 */
6621 {
6622 static int flag;
6623
6624 flag = !flag;
6625 if (flag) {
6626 return -TARGET_ERESTARTSYS;
6627 }
6628 }
6629#endif
6630
72f03900 6631#ifdef DEBUG
c573ff67 6632 gemu_log("syscall %d", num);
72f03900 6633#endif
b92c47c1
TS		 6634 if(do_strace)
6635 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
6636
31e31b8a
FB		 6637 switch(num) {
6638 case TARGET_NR_exit:
9b056fcc
AF		 6639 /* In old applications this may be used to implement _exit(2).
6640 However in threaded applictions it is used for thread termination,
6641 and _exit_group is used for application termination.
6642 Do thread termination if we have more then one thread. */
a0995886
TB		 6643
6644 if (block_signals()) {
6645 ret = -TARGET_ERESTARTSYS;
6646 break;
6647 }
6648
bdc44640 6649 if (CPU_NEXT(first_cpu)) {
9b056fcc 6650 TaskState *ts;
9b056fcc
AF		 6651
6652 cpu_list_lock();
9b056fcc 6653 /* Remove the CPU from the list. */
bdc44640 6654 QTAILQ_REMOVE(&cpus, cpu, node);
9b056fcc 6655 cpu_list_unlock();
0429a971 6656 ts = cpu->opaque;
9b056fcc
AF		 6657 if (ts->child_tidptr) {
6658 put_user_u32(0, ts->child_tidptr);
6659 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
6660 NULL, NULL, 0);
6661 }
a2247f8e 6662 thread_cpu = NULL;
0429a971 6663 object_unref(OBJECT(cpu));
9b056fcc 6664 g_free(ts);
70903763 6665 rcu_unregister_thread();
9b056fcc
AF		 6666 pthread_exit(NULL);
6667 }
9788c9ca 6668#ifdef TARGET_GPROF
7d13299d
FB		 6669 _mcleanup();
6670#endif
e9009676 6671 gdb_exit(cpu_env, arg1);
c2764719 6672 _exit(arg1);
31e31b8a
FB		 6673 ret = 0; /* avoid warning */
6674 break;
6675 case TARGET_NR_read:
38d840e6
AJ		 6676 if (arg3 == 0)
6677 ret = 0;
6678 else {
6679 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
6680 goto efault;
50afd02b 6681 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 6682 if (ret >= 0 &&
5d4d3665
LV		 6683 fd_trans_host_to_target_data(arg1)) {
6684 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 6685 }
38d840e6
AJ		 6686 unlock_user(p, arg2, ret);
6687 }
31e31b8a
FB		 6688 break;
6689 case TARGET_NR_write:
579a97f7
FB		 6690 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
6691 goto efault;
50afd02b 6692 ret = get_errno(safe_write(arg1, p, arg3));
53a5960a 6693 unlock_user(p, arg2, 0);
31e31b8a 6694 break;
704eff6c 6695#ifdef TARGET_NR_open
31e31b8a 6696 case TARGET_NR_open:
2f619698
FB		 6697 if (!(p = lock_user_string(arg1)))
6698 goto efault;
0b2effd7
RV		 6699 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
6700 target_to_host_bitmask(arg2, fcntl_flags_tbl),
6701 arg3));
e36800c9 6702 fd_trans_unregister(ret);
53a5960a 6703 unlock_user(p, arg1, 0);
31e31b8a 6704 break;
704eff6c 6705#endif
82424832 6706 case TARGET_NR_openat:
579a97f7
FB		 6707 if (!(p = lock_user_string(arg2)))
6708 goto efault;
0b2effd7
RV		 6709 ret = get_errno(do_openat(cpu_env, arg1, p,
6710 target_to_host_bitmask(arg3, fcntl_flags_tbl),
6711 arg4));
e36800c9 6712 fd_trans_unregister(ret);
579a97f7 6713 unlock_user(p, arg2, 0);
82424832 6714 break;
0f0426f3
LV		 6715#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6716 case TARGET_NR_name_to_handle_at:
6717 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
6718 break;
6719#endif
6720#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6721 case TARGET_NR_open_by_handle_at:
6722 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 6723 fd_trans_unregister(ret);
0f0426f3
LV		 6724 break;
6725#endif
31e31b8a 6726 case TARGET_NR_close:
e36800c9 6727 fd_trans_unregister(arg1);
31e31b8a
FB		 6728 ret = get_errno(close(arg1));
6729 break;
6730 case TARGET_NR_brk:
53a5960a 6731 ret = do_brk(arg1);
31e31b8a 6732 break;
704eff6c 6733#ifdef TARGET_NR_fork
31e31b8a 6734 case TARGET_NR_fork:
d865bab5 6735 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
31e31b8a 6736 break;
704eff6c 6737#endif
e5febef5 6738#ifdef TARGET_NR_waitpid
31e31b8a
FB		 6739 case TARGET_NR_waitpid:
6740 {
53a5960a 6741 int status;
4af80a37 6742 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 6743 if (!is_error(ret) && arg2 && ret
1d9d8b55 6744 && put_user_s32(host_to_target_waitstatus(status), arg2))
2f619698 6745 goto efault;
31e31b8a
FB		 6746 }
6747 break;
e5febef5 6748#endif
f0cbb613
PB		 6749#ifdef TARGET_NR_waitid
6750 case TARGET_NR_waitid:
6751 {
6752 siginfo_t info;
6753 info.si_pid = 0;
4af80a37 6754 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 6755 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 6756 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
f0cbb613
PB		 6757 goto efault;
6758 host_to_target_siginfo(p, &info);
c227f099 6759 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 6760 }
6761 }
6762 break;
6763#endif
7a3148a9 6764#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 6765 case TARGET_NR_creat:
579a97f7
FB		 6766 if (!(p = lock_user_string(arg1)))
6767 goto efault;
53a5960a 6768 ret = get_errno(creat(p, arg2));
e36800c9 6769 fd_trans_unregister(ret);
53a5960a 6770 unlock_user(p, arg1, 0);
31e31b8a 6771 break;
7a3148a9 6772#endif
704eff6c 6773#ifdef TARGET_NR_link
31e31b8a 6774 case TARGET_NR_link:
53a5960a
PB		 6775 {
6776 void * p2;
6777 p = lock_user_string(arg1);
6778 p2 = lock_user_string(arg2);
579a97f7
FB		 6779 if (!p || !p2)
6780 ret = -TARGET_EFAULT;
6781 else
6782 ret = get_errno(link(p, p2));
53a5960a
PB		 6783 unlock_user(p2, arg2, 0);
6784 unlock_user(p, arg1, 0);
6785 }
31e31b8a 6786 break;
704eff6c 6787#endif
c0d472b1 6788#if defined(TARGET_NR_linkat)
64f0ce4c 6789 case TARGET_NR_linkat:
64f0ce4c
TS		 6790 {
6791 void * p2 = NULL;
579a97f7
FB		 6792 if (!arg2 || !arg4)
6793 goto efault;
64f0ce4c
TS		 6794 p = lock_user_string(arg2);
6795 p2 = lock_user_string(arg4);
579a97f7 6796 if (!p || !p2)
0da46a6e 6797 ret = -TARGET_EFAULT;
64f0ce4c 6798 else
c0d472b1 6799 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 6800 unlock_user(p, arg2, 0);
6801 unlock_user(p2, arg4, 0);
64f0ce4c
TS		 6802 }
6803 break;
6804#endif
704eff6c 6805#ifdef TARGET_NR_unlink
31e31b8a 6806 case TARGET_NR_unlink:
579a97f7
FB		 6807 if (!(p = lock_user_string(arg1)))
6808 goto efault;
53a5960a
PB		 6809 ret = get_errno(unlink(p));
6810 unlock_user(p, arg1, 0);
31e31b8a 6811 break;
704eff6c 6812#endif
c0d472b1 6813#if defined(TARGET_NR_unlinkat)
8170f56b 6814 case TARGET_NR_unlinkat:
579a97f7
FB		 6815 if (!(p = lock_user_string(arg2)))
6816 goto efault;
c0d472b1 6817 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 6818 unlock_user(p, arg2, 0);
ed494d87 6819 break;
b7d35e65 6820#endif
31e31b8a 6821 case TARGET_NR_execve:
7854b056
FB		 6822 {
6823 char **argp, **envp;
f7341ff4 6824 int argc, envc;
992f48a0
BS		 6825 abi_ulong gp;
6826 abi_ulong guest_argp;
6827 abi_ulong guest_envp;
6828 abi_ulong addr;
7854b056 6829 char **q;
a6f79cc9 6830 int total_size = 0;
7854b056 6831
f7341ff4 6832 argc = 0;
53a5960a 6833 guest_argp = arg2;
da94d263 6834 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 6835 if (get_user_ual(addr, gp))
2f619698 6836 goto efault;
03aa1976 6837 if (!addr)
2f619698 6838 break;
7854b056 6839 argc++;
2f619698 6840 }
f7341ff4 6841 envc = 0;
53a5960a 6842 guest_envp = arg3;
da94d263 6843 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 6844 if (get_user_ual(addr, gp))
2f619698 6845 goto efault;
03aa1976 6846 if (!addr)
2f619698 6847 break;
7854b056 6848 envc++;
2f619698 6849 }
7854b056 6850
f7341ff4
FB		 6851 argp = alloca((argc + 1) * sizeof(void *));
6852 envp = alloca((envc + 1) * sizeof(void *));
7854b056 6853
da94d263 6854 for (gp = guest_argp, q = argp; gp;
992f48a0 6855 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 6856 if (get_user_ual(addr, gp))
6857 goto execve_efault;
53a5960a
PB		 6858 if (!addr)
6859 break;
2f619698
FB		 6860 if (!(*q = lock_user_string(addr)))
6861 goto execve_efault;
a6f79cc9 6862 total_size += strlen(*q) + 1;
53a5960a 6863 }
f7341ff4
FB		 6864 *q = NULL;
6865
da94d263 6866 for (gp = guest_envp, q = envp; gp;
992f48a0 6867 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 6868 if (get_user_ual(addr, gp))
6869 goto execve_efault;
53a5960a
PB		 6870 if (!addr)
6871 break;
2f619698
FB		 6872 if (!(*q = lock_user_string(addr)))
6873 goto execve_efault;
a6f79cc9 6874 total_size += strlen(*q) + 1;
53a5960a 6875 }
f7341ff4 6876 *q = NULL;
7854b056 6877
2f619698
FB		 6878 if (!(p = lock_user_string(arg1)))
6879 goto execve_efault;
ffdcbe22
TB		 6880 /* Although execve() is not an interruptible syscall it is
6881 * a special case where we must use the safe_syscall wrapper:
6882 * if we allow a signal to happen before we make the host
6883 * syscall then we will 'lose' it, because at the point of
6884 * execve the process leaves QEMU's control. So we use the
6885 * safe syscall wrapper to ensure that we either take the
6886 * signal as a guest signal, or else it does not happen
6887 * before the execve completes and makes it the other
6888 * program's problem.
6889 */
6890 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 6891 unlock_user(p, arg1, 0);
6892
2f619698
FB		 6893 goto execve_end;
6894
6895 execve_efault:
6896 ret = -TARGET_EFAULT;
6897
6898 execve_end:
53a5960a 6899 for (gp = guest_argp, q = argp; *q;
992f48a0 6900 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 6901 if (get_user_ual(addr, gp)
6902 || !addr)
6903 break;
53a5960a
PB		 6904 unlock_user(*q, addr, 0);
6905 }
6906 for (gp = guest_envp, q = envp; *q;
992f48a0 6907 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 6908 if (get_user_ual(addr, gp)
6909 || !addr)
6910 break;
53a5960a
PB		 6911 unlock_user(*q, addr, 0);
6912 }
7854b056 6913 }
31e31b8a
FB		 6914 break;
6915 case TARGET_NR_chdir:
579a97f7
FB		 6916 if (!(p = lock_user_string(arg1)))
6917 goto efault;
53a5960a
PB		 6918 ret = get_errno(chdir(p));
6919 unlock_user(p, arg1, 0);
31e31b8a 6920 break;
a315a145 6921#ifdef TARGET_NR_time
31e31b8a
FB		 6922 case TARGET_NR_time:
6923 {
53a5960a
PB		 6924 time_t host_time;
6925 ret = get_errno(time(&host_time));
2f619698
FB		 6926 if (!is_error(ret)
6927 && arg1
6928 && put_user_sal(host_time, arg1))
6929 goto efault;
31e31b8a
FB		 6930 }
6931 break;
a315a145 6932#endif
704eff6c 6933#ifdef TARGET_NR_mknod
31e31b8a 6934 case TARGET_NR_mknod:
579a97f7
FB		 6935 if (!(p = lock_user_string(arg1)))
6936 goto efault;
53a5960a
PB		 6937 ret = get_errno(mknod(p, arg2, arg3));
6938 unlock_user(p, arg1, 0);
31e31b8a 6939 break;
704eff6c 6940#endif
c0d472b1 6941#if defined(TARGET_NR_mknodat)
75ac37a0 6942 case TARGET_NR_mknodat:
579a97f7
FB		 6943 if (!(p = lock_user_string(arg2)))
6944 goto efault;
c0d472b1 6945 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 6946 unlock_user(p, arg2, 0);
75ac37a0
TS		 6947 break;
6948#endif
704eff6c 6949#ifdef TARGET_NR_chmod
31e31b8a 6950 case TARGET_NR_chmod:
579a97f7
FB		 6951 if (!(p = lock_user_string(arg1)))
6952 goto efault;
53a5960a
PB		 6953 ret = get_errno(chmod(p, arg2));
6954 unlock_user(p, arg1, 0);
31e31b8a 6955 break;
704eff6c 6956#endif
ebc05488 6957#ifdef TARGET_NR_break
31e31b8a
FB		 6958 case TARGET_NR_break:
6959 goto unimplemented;
ebc05488
FB		 6960#endif
6961#ifdef TARGET_NR_oldstat
31e31b8a
FB		 6962 case TARGET_NR_oldstat:
6963 goto unimplemented;
ebc05488 6964#endif
31e31b8a
FB		 6965 case TARGET_NR_lseek:
6966 ret = get_errno(lseek(arg1, arg2, arg3));
6967 break;
9231733a
RH		 6968#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
6969 /* Alpha specific */
7a3148a9 6970 case TARGET_NR_getxpid:
9231733a
RH		 6971 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
6972 ret = get_errno(getpid());
6973 break;
7a3148a9 6974#endif
9231733a
RH		 6975#ifdef TARGET_NR_getpid
6976 case TARGET_NR_getpid:
31e31b8a
FB		 6977 ret = get_errno(getpid());
6978 break;
9231733a 6979#endif
31e31b8a 6980 case TARGET_NR_mount:
356d771b
PB		 6981 {
6982 /* need to look at the data field */
6983 void *p2, *p3;
6984
6985 if (arg1) {
6986 p = lock_user_string(arg1);
6987 if (!p) {
6988 goto efault;
6989 }
6990 } else {
6991 p = NULL;
6992 }
6993
6994 p2 = lock_user_string(arg2);
6995 if (!p2) {
6996 if (arg1) {
6997 unlock_user(p, arg1, 0);
6998 }
6999 goto efault;
7000 }
7001
7002 if (arg3) {
7003 p3 = lock_user_string(arg3);
7004 if (!p3) {
7005 if (arg1) {
579a97f7 7006 unlock_user(p, arg1, 0);
356d771b
PB		 7007 }
7008 unlock_user(p2, arg2, 0);
7009 goto efault;
7010 }
7011 } else {
7012 p3 = NULL;
7013 }
7014
7015 /* FIXME - arg5 should be locked, but it isn't clear how to
7016 * do that since it's not guaranteed to be a NULL-terminated
7017 * string.
7018 */
7019 if (!arg5) {
7020 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7021 } else {
7022 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7023 }
7024 ret = get_errno(ret);
7025
7026 if (arg1) {
7027 unlock_user(p, arg1, 0);
7028 }
7029 unlock_user(p2, arg2, 0);
7030 if (arg3) {
7031 unlock_user(p3, arg3, 0);
7032 }
7033 }
7034 break;
e5febef5 7035#ifdef TARGET_NR_umount
31e31b8a 7036 case TARGET_NR_umount:
579a97f7
FB		 7037 if (!(p = lock_user_string(arg1)))
7038 goto efault;
53a5960a
PB		 7039 ret = get_errno(umount(p));
7040 unlock_user(p, arg1, 0);
31e31b8a 7041 break;
e5febef5 7042#endif
7a3148a9 7043#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 7044 case TARGET_NR_stime:
7045 {
53a5960a 7046 time_t host_time;
2f619698
FB		 7047 if (get_user_sal(host_time, arg1))
7048 goto efault;
53a5960a 7049 ret = get_errno(stime(&host_time));
31e31b8a
FB		 7050 }
7051 break;
7a3148a9 7052#endif
31e31b8a
FB		 7053 case TARGET_NR_ptrace:
7054 goto unimplemented;
7a3148a9 7055#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a
FB		 7056 case TARGET_NR_alarm:
7057 ret = alarm(arg1);
7058 break;
7a3148a9 7059#endif
ebc05488 7060#ifdef TARGET_NR_oldfstat
31e31b8a
FB		 7061 case TARGET_NR_oldfstat:
7062 goto unimplemented;
ebc05488 7063#endif
7a3148a9 7064#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 7065 case TARGET_NR_pause:
f59ec606
TB		 7066 if (!block_signals()) {
7067 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7068 }
7069 ret = -TARGET_EINTR;
31e31b8a 7070 break;
7a3148a9 7071#endif
e5febef5 7072#ifdef TARGET_NR_utime
31e31b8a 7073 case TARGET_NR_utime:
ebc05488 7074 {
53a5960a
PB		 7075 struct utimbuf tbuf, *host_tbuf;
7076 struct target_utimbuf *target_tbuf;
7077 if (arg2) {
579a97f7
FB		 7078 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
7079 goto efault;
cbb21eed
MB		 7080 tbuf.actime = tswapal(target_tbuf->actime);
7081 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 7082 unlock_user_struct(target_tbuf, arg2, 0);
7083 host_tbuf = &tbuf;
f72e8ff4 7084 } else {
53a5960a 7085 host_tbuf = NULL;
f72e8ff4 7086 }
579a97f7
FB		 7087 if (!(p = lock_user_string(arg1)))
7088 goto efault;
53a5960a
PB		 7089 ret = get_errno(utime(p, host_tbuf));
7090 unlock_user(p, arg1, 0);
ebc05488
FB		 7091 }
7092 break;
e5febef5 7093#endif
704eff6c 7094#ifdef TARGET_NR_utimes
978a66ff
FB		 7095 case TARGET_NR_utimes:
7096 {
978a66ff 7097 struct timeval *tvp, tv[2];
53a5960a 7098 if (arg2) {
788f5ec4
TS		 7099 if (copy_from_user_timeval(&tv[0], arg2)
7100 || copy_from_user_timeval(&tv[1],
7101 arg2 + sizeof(struct target_timeval)))
7102 goto efault;
978a66ff
FB		 7103 tvp = tv;
7104 } else {
7105 tvp = NULL;
7106 }
579a97f7
FB		 7107 if (!(p = lock_user_string(arg1)))
7108 goto efault;
53a5960a
PB		 7109 ret = get_errno(utimes(p, tvp));
7110 unlock_user(p, arg1, 0);
978a66ff
FB		 7111 }
7112 break;
704eff6c 7113#endif
c0d472b1 7114#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 7115 case TARGET_NR_futimesat:
7116 {
7117 struct timeval *tvp, tv[2];
7118 if (arg3) {
7119 if (copy_from_user_timeval(&tv[0], arg3)
7120 || copy_from_user_timeval(&tv[1],
7121 arg3 + sizeof(struct target_timeval)))
7122 goto efault;
7123 tvp = tv;
7124 } else {
7125 tvp = NULL;
7126 }
7127 if (!(p = lock_user_string(arg2)))
7128 goto efault;
c0d472b1 7129 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 7130 unlock_user(p, arg2, 0);
7131 }
7132 break;
7133#endif
ebc05488 7134#ifdef TARGET_NR_stty
31e31b8a
FB		 7135 case TARGET_NR_stty:
7136 goto unimplemented;
ebc05488
FB		 7137#endif
7138#ifdef TARGET_NR_gtty
31e31b8a
FB		 7139 case TARGET_NR_gtty:
7140 goto unimplemented;
ebc05488 7141#endif
704eff6c 7142#ifdef TARGET_NR_access
31e31b8a 7143 case TARGET_NR_access:
579a97f7
FB		 7144 if (!(p = lock_user_string(arg1)))
7145 goto efault;
719f908e 7146 ret = get_errno(access(path(p), arg2));
53a5960a 7147 unlock_user(p, arg1, 0);
31e31b8a 7148 break;
704eff6c 7149#endif
92a34c10
TS		 7150#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7151 case TARGET_NR_faccessat:
579a97f7
FB		 7152 if (!(p = lock_user_string(arg2)))
7153 goto efault;
c0d472b1 7154 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 7155 unlock_user(p, arg2, 0);
92a34c10
TS		 7156 break;
7157#endif
7a3148a9 7158#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a
FB		 7159 case TARGET_NR_nice:
7160 ret = get_errno(nice(arg1));
7161 break;
7a3148a9 7162#endif
ebc05488 7163#ifdef TARGET_NR_ftime
31e31b8a
FB		 7164 case TARGET_NR_ftime:
7165 goto unimplemented;
ebc05488 7166#endif
31e31b8a 7167 case TARGET_NR_sync:
04369ff2
FB		 7168 sync();
7169 ret = 0;
31e31b8a
FB		 7170 break;
7171 case TARGET_NR_kill:
bef653d9 7172 ret = get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
31e31b8a 7173 break;
704eff6c 7174#ifdef TARGET_NR_rename
31e31b8a 7175 case TARGET_NR_rename:
53a5960a
PB		 7176 {
7177 void *p2;
7178 p = lock_user_string(arg1);
7179 p2 = lock_user_string(arg2);
579a97f7
FB		 7180 if (!p || !p2)
7181 ret = -TARGET_EFAULT;
7182 else
7183 ret = get_errno(rename(p, p2));
53a5960a
PB		 7184 unlock_user(p2, arg2, 0);
7185 unlock_user(p, arg1, 0);
7186 }
31e31b8a 7187 break;
704eff6c 7188#endif
c0d472b1 7189#if defined(TARGET_NR_renameat)
722183f6 7190 case TARGET_NR_renameat:
722183f6 7191 {
579a97f7 7192 void *p2;
722183f6
TS		 7193 p = lock_user_string(arg2);
7194 p2 = lock_user_string(arg4);
579a97f7 7195 if (!p || !p2)
0da46a6e 7196 ret = -TARGET_EFAULT;
722183f6 7197 else
c0d472b1 7198 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 7199 unlock_user(p2, arg4, 0);
7200 unlock_user(p, arg2, 0);
722183f6
TS		 7201 }
7202 break;
7203#endif
704eff6c 7204#ifdef TARGET_NR_mkdir
31e31b8a 7205 case TARGET_NR_mkdir:
579a97f7
FB		 7206 if (!(p = lock_user_string(arg1)))
7207 goto efault;
53a5960a
PB		 7208 ret = get_errno(mkdir(p, arg2));
7209 unlock_user(p, arg1, 0);
31e31b8a 7210 break;
704eff6c 7211#endif
c0d472b1 7212#if defined(TARGET_NR_mkdirat)
4472ad0d 7213 case TARGET_NR_mkdirat:
579a97f7
FB		 7214 if (!(p = lock_user_string(arg2)))
7215 goto efault;
c0d472b1 7216 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 7217 unlock_user(p, arg2, 0);
4472ad0d
TS		 7218 break;
7219#endif
704eff6c 7220#ifdef TARGET_NR_rmdir
31e31b8a 7221 case TARGET_NR_rmdir:
579a97f7
FB		 7222 if (!(p = lock_user_string(arg1)))
7223 goto efault;
53a5960a
PB		 7224 ret = get_errno(rmdir(p));
7225 unlock_user(p, arg1, 0);
31e31b8a 7226 break;
704eff6c 7227#endif
31e31b8a
FB		 7228 case TARGET_NR_dup:
7229 ret = get_errno(dup(arg1));
e36800c9
LV		 7230 if (ret >= 0) {
7231 fd_trans_dup(arg1, ret);
7232 }
31e31b8a 7233 break;
704eff6c 7234#ifdef TARGET_NR_pipe
31e31b8a 7235 case TARGET_NR_pipe:
fb41a66e 7236 ret = do_pipe(cpu_env, arg1, 0, 0);
099d6b0f 7237 break;
704eff6c 7238#endif
099d6b0f
RV		 7239#ifdef TARGET_NR_pipe2
7240 case TARGET_NR_pipe2:
e7ea6cbe
RH		 7241 ret = do_pipe(cpu_env, arg1,
7242 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
31e31b8a 7243 break;
099d6b0f 7244#endif
31e31b8a 7245 case TARGET_NR_times:
32f36bce 7246 {
53a5960a 7247 struct target_tms *tmsp;
32f36bce
FB		 7248 struct tms tms;
7249 ret = get_errno(times(&tms));
53a5960a 7250 if (arg1) {
579a97f7
FB		 7251 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7252 if (!tmsp)
7253 goto efault;
cbb21eed
MB		 7254 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7255 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7256 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7257 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 7258 }
c596ed17
FB		 7259 if (!is_error(ret))
7260 ret = host_to_target_clock_t(ret);
32f36bce
FB		 7261 }
7262 break;
ebc05488 7263#ifdef TARGET_NR_prof
31e31b8a
FB		 7264 case TARGET_NR_prof:
7265 goto unimplemented;
ebc05488 7266#endif
e5febef5 7267#ifdef TARGET_NR_signal
31e31b8a
FB		 7268 case TARGET_NR_signal:
7269 goto unimplemented;
e5febef5 7270#endif
31e31b8a 7271 case TARGET_NR_acct:
38d840e6
AJ		 7272 if (arg1 == 0) {
7273 ret = get_errno(acct(NULL));
7274 } else {
7275 if (!(p = lock_user_string(arg1)))
7276 goto efault;
7277 ret = get_errno(acct(path(p)));
7278 unlock_user(p, arg1, 0);
7279 }
24836689 7280 break;
8070e7be 7281#ifdef TARGET_NR_umount2
31e31b8a 7282 case TARGET_NR_umount2:
579a97f7
FB		 7283 if (!(p = lock_user_string(arg1)))
7284 goto efault;
53a5960a
PB		 7285 ret = get_errno(umount2(p, arg2));
7286 unlock_user(p, arg1, 0);
31e31b8a 7287 break;
7a3148a9 7288#endif
ebc05488 7289#ifdef TARGET_NR_lock
31e31b8a
FB		 7290 case TARGET_NR_lock:
7291 goto unimplemented;
ebc05488 7292#endif
31e31b8a
FB		 7293 case TARGET_NR_ioctl:
7294 ret = do_ioctl(arg1, arg2, arg3);
7295 break;
7296 case TARGET_NR_fcntl:
9ee1fa2c 7297 ret = do_fcntl(arg1, arg2, arg3);
31e31b8a 7298 break;
ebc05488 7299#ifdef TARGET_NR_mpx
31e31b8a
FB		 7300 case TARGET_NR_mpx:
7301 goto unimplemented;
ebc05488 7302#endif
31e31b8a
FB		 7303 case TARGET_NR_setpgid:
7304 ret = get_errno(setpgid(arg1, arg2));
7305 break;
ebc05488 7306#ifdef TARGET_NR_ulimit
31e31b8a
FB		 7307 case TARGET_NR_ulimit:
7308 goto unimplemented;
ebc05488
FB		 7309#endif
7310#ifdef TARGET_NR_oldolduname
31e31b8a
FB		 7311 case TARGET_NR_oldolduname:
7312 goto unimplemented;
ebc05488 7313#endif
31e31b8a
FB		 7314 case TARGET_NR_umask:
7315 ret = get_errno(umask(arg1));
7316 break;
7317 case TARGET_NR_chroot:
579a97f7
FB		 7318 if (!(p = lock_user_string(arg1)))
7319 goto efault;
53a5960a
PB		 7320 ret = get_errno(chroot(p));
7321 unlock_user(p, arg1, 0);
31e31b8a 7322 break;
704eff6c 7323#ifdef TARGET_NR_ustat
31e31b8a
FB		 7324 case TARGET_NR_ustat:
7325 goto unimplemented;
704eff6c
CG		 7326#endif
7327#ifdef TARGET_NR_dup2
31e31b8a
FB		 7328 case TARGET_NR_dup2:
7329 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 7330 if (ret >= 0) {
7331 fd_trans_dup(arg1, arg2);
7332 }
31e31b8a 7333 break;
704eff6c 7334#endif
d0927938
UH		 7335#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7336 case TARGET_NR_dup3:
7337 ret = get_errno(dup3(arg1, arg2, arg3));
e36800c9
LV		 7338 if (ret >= 0) {
7339 fd_trans_dup(arg1, arg2);
7340 }
d0927938
UH		 7341 break;
7342#endif
7a3148a9 7343#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a
FB		 7344 case TARGET_NR_getppid:
7345 ret = get_errno(getppid());
7346 break;
7a3148a9 7347#endif
704eff6c 7348#ifdef TARGET_NR_getpgrp
31e31b8a
FB		 7349 case TARGET_NR_getpgrp:
7350 ret = get_errno(getpgrp());
7351 break;
704eff6c 7352#endif
31e31b8a
FB		 7353 case TARGET_NR_setsid:
7354 ret = get_errno(setsid());
7355 break;
e5febef5 7356#ifdef TARGET_NR_sigaction
31e31b8a 7357 case TARGET_NR_sigaction:
31e31b8a 7358 {
6049f4f8
RH		 7359#if defined(TARGET_ALPHA)
7360 struct target_sigaction act, oact, *pact = 0;
53a5960a 7361 struct target_old_sigaction *old_act;
53a5960a 7362 if (arg2) {
579a97f7
FB		 7363 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7364 goto efault;
66fb9763
FB		 7365 act._sa_handler = old_act->_sa_handler;
7366 target_siginitset(&act.sa_mask, old_act->sa_mask);
7367 act.sa_flags = old_act->sa_flags;
6049f4f8 7368 act.sa_restorer = 0;
53a5960a 7369 unlock_user_struct(old_act, arg2, 0);
66fb9763 7370 pact = &act;
66fb9763
FB		 7371 }
7372 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 7373 if (!is_error(ret) && arg3) {
579a97f7
FB		 7374 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7375 goto efault;
53a5960a
PB		 7376 old_act->_sa_handler = oact._sa_handler;
7377 old_act->sa_mask = oact.sa_mask.sig[0];
7378 old_act->sa_flags = oact.sa_flags;
53a5960a 7379 unlock_user_struct(old_act, arg3, 1);
66fb9763 7380 }
6049f4f8 7381#elif defined(TARGET_MIPS)
106ec879
FB		 7382 struct target_sigaction act, oact, *pact, *old_act;
7383
7384 if (arg2) {
579a97f7
FB		 7385 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7386 goto efault;
106ec879
FB		 7387 act._sa_handler = old_act->_sa_handler;
7388 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7389 act.sa_flags = old_act->sa_flags;
7390 unlock_user_struct(old_act, arg2, 0);
7391 pact = &act;
7392 } else {
7393 pact = NULL;
7394 }
7395
7396 ret = get_errno(do_sigaction(arg1, pact, &oact));
7397
7398 if (!is_error(ret) && arg3) {
579a97f7
FB		 7399 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7400 goto efault;
106ec879
FB		 7401 old_act->_sa_handler = oact._sa_handler;
7402 old_act->sa_flags = oact.sa_flags;
7403 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7404 old_act->sa_mask.sig[1] = 0;
7405 old_act->sa_mask.sig[2] = 0;
7406 old_act->sa_mask.sig[3] = 0;
7407 unlock_user_struct(old_act, arg3, 1);
7408 }
6049f4f8
RH		 7409#else
7410 struct target_old_sigaction *old_act;
7411 struct target_sigaction act, oact, *pact;
7412 if (arg2) {
7413 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
7414 goto efault;
7415 act._sa_handler = old_act->_sa_handler;
7416 target_siginitset(&act.sa_mask, old_act->sa_mask);
7417 act.sa_flags = old_act->sa_flags;
7418 act.sa_restorer = old_act->sa_restorer;
7419 unlock_user_struct(old_act, arg2, 0);
7420 pact = &act;
7421 } else {
7422 pact = NULL;
7423 }
7424 ret = get_errno(do_sigaction(arg1, pact, &oact));
7425 if (!is_error(ret) && arg3) {
7426 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
7427 goto efault;
7428 old_act->_sa_handler = oact._sa_handler;
7429 old_act->sa_mask = oact.sa_mask.sig[0];
7430 old_act->sa_flags = oact.sa_flags;
7431 old_act->sa_restorer = oact.sa_restorer;
7432 unlock_user_struct(old_act, arg3, 1);
7433 }
388bb21a 7434#endif
31e31b8a
FB		 7435 }
7436 break;
e5febef5 7437#endif
66fb9763 7438 case TARGET_NR_rt_sigaction:
53a5960a 7439 {
6049f4f8
RH		 7440#if defined(TARGET_ALPHA)
7441 struct target_sigaction act, oact, *pact = 0;
7442 struct target_rt_sigaction *rt_act;
7443 /* ??? arg4 == sizeof(sigset_t). */
7444 if (arg2) {
7445 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
7446 goto efault;
7447 act._sa_handler = rt_act->_sa_handler;
7448 act.sa_mask = rt_act->sa_mask;
7449 act.sa_flags = rt_act->sa_flags;
7450 act.sa_restorer = arg5;
7451 unlock_user_struct(rt_act, arg2, 0);
7452 pact = &act;
7453 }
7454 ret = get_errno(do_sigaction(arg1, pact, &oact));
7455 if (!is_error(ret) && arg3) {
7456 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
7457 goto efault;
7458 rt_act->_sa_handler = oact._sa_handler;
7459 rt_act->sa_mask = oact.sa_mask;
7460 rt_act->sa_flags = oact.sa_flags;
7461 unlock_user_struct(rt_act, arg3, 1);
7462 }
7463#else
53a5960a
PB		 7464 struct target_sigaction *act;
7465 struct target_sigaction *oact;
7466
579a97f7
FB		 7467 if (arg2) {
7468 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
7469 goto efault;
7470 } else
53a5960a 7471 act = NULL;
579a97f7
FB		 7472 if (arg3) {
7473 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
7474 ret = -TARGET_EFAULT;
7475 goto rt_sigaction_fail;
7476 }
7477 } else
53a5960a
PB		 7478 oact = NULL;
7479 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 7480 rt_sigaction_fail:
7481 if (act)
53a5960a 7482 unlock_user_struct(act, arg2, 0);
579a97f7 7483 if (oact)
53a5960a 7484 unlock_user_struct(oact, arg3, 1);
6049f4f8 7485#endif
53a5960a 7486 }
66fb9763 7487 break;
7a3148a9 7488#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 7489 case TARGET_NR_sgetmask:
66fb9763
FB		 7490 {
7491 sigset_t cur_set;
992f48a0 7492 abi_ulong target_set;
3d3efba0
PM		 7493 ret = do_sigprocmask(0, NULL, &cur_set);
7494 if (!ret) {
7495 host_to_target_old_sigset(&target_set, &cur_set);
7496 ret = target_set;
7497 }
66fb9763
FB		 7498 }
7499 break;
7a3148a9
JM		 7500#endif
7501#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 7502 case TARGET_NR_ssetmask:
66fb9763
FB		 7503 {
7504 sigset_t set, oset, cur_set;
992f48a0 7505 abi_ulong target_set = arg1;
3d3efba0
PM		 7506 /* We only have one word of the new mask so we must read
7507 * the rest of it with do_sigprocmask() and OR in this word.
7508 * We are guaranteed that a do_sigprocmask() that only queries
7509 * the signal mask will not fail.
7510 */
7511 ret = do_sigprocmask(0, NULL, &cur_set);
7512 assert(!ret);
66fb9763
FB		 7513 target_to_host_old_sigset(&set, &target_set);
7514 sigorset(&set, &set, &cur_set);
3d3efba0
PM		 7515 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
7516 if (!ret) {
7517 host_to_target_old_sigset(&target_set, &oset);
7518 ret = target_set;
7519 }
66fb9763
FB		 7520 }
7521 break;
7a3148a9 7522#endif
e5febef5 7523#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 7524 case TARGET_NR_sigprocmask:
7525 {
a5b3b13b
RH		 7526#if defined(TARGET_ALPHA)
7527 sigset_t set, oldset;
7528 abi_ulong mask;
7529 int how;
7530
7531 switch (arg1) {
7532 case TARGET_SIG_BLOCK:
7533 how = SIG_BLOCK;
7534 break;
7535 case TARGET_SIG_UNBLOCK:
7536 how = SIG_UNBLOCK;
7537 break;
7538 case TARGET_SIG_SETMASK:
7539 how = SIG_SETMASK;
7540 break;
7541 default:
7542 ret = -TARGET_EINVAL;
7543 goto fail;
7544 }
7545 mask = arg2;
7546 target_to_host_old_sigset(&set, &mask);
7547
3d3efba0 7548 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 7549 if (!is_error(ret)) {
7550 host_to_target_old_sigset(&mask, &oldset);
7551 ret = mask;
0229f5a3 7552 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 7553 }
7554#else
66fb9763 7555 sigset_t set, oldset, *set_ptr;
a5b3b13b 7556 int how;
3b46e624 7557
53a5960a 7558 if (arg2) {
a5b3b13b 7559 switch (arg1) {
66fb9763
FB		 7560 case TARGET_SIG_BLOCK:
7561 how = SIG_BLOCK;
7562 break;
7563 case TARGET_SIG_UNBLOCK:
7564 how = SIG_UNBLOCK;
7565 break;
7566 case TARGET_SIG_SETMASK:
7567 how = SIG_SETMASK;
7568 break;
7569 default:
0da46a6e 7570 ret = -TARGET_EINVAL;
66fb9763
FB		 7571 goto fail;
7572 }
c227f099 7573 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
579a97f7 7574 goto efault;
53a5960a
PB		 7575 target_to_host_old_sigset(&set, p);
7576 unlock_user(p, arg2, 0);
66fb9763
FB		 7577 set_ptr = &set;
7578 } else {
7579 how = 0;
7580 set_ptr = NULL;
7581 }
3d3efba0 7582 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7583 if (!is_error(ret) && arg3) {
c227f099 7584 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
579a97f7 7585 goto efault;
53a5960a 7586 host_to_target_old_sigset(p, &oldset);
c227f099 7587 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 7588 }
a5b3b13b 7589#endif
66fb9763
FB		 7590 }
7591 break;
e5febef5 7592#endif
66fb9763
FB		 7593 case TARGET_NR_rt_sigprocmask:
7594 {
7595 int how = arg1;
7596 sigset_t set, oldset, *set_ptr;
3b46e624 7597
53a5960a 7598 if (arg2) {
66fb9763
FB		 7599 switch(how) {
7600 case TARGET_SIG_BLOCK:
7601 how = SIG_BLOCK;
7602 break;
7603 case TARGET_SIG_UNBLOCK:
7604 how = SIG_UNBLOCK;
7605 break;
7606 case TARGET_SIG_SETMASK:
7607 how = SIG_SETMASK;
7608 break;
7609 default:
0da46a6e 7610 ret = -TARGET_EINVAL;
66fb9763
FB		 7611 goto fail;
7612 }
c227f099 7613 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
579a97f7 7614 goto efault;
53a5960a
PB		 7615 target_to_host_sigset(&set, p);
7616 unlock_user(p, arg2, 0);
66fb9763
FB		 7617 set_ptr = &set;
7618 } else {
7619 how = 0;
7620 set_ptr = NULL;
7621 }
3d3efba0 7622 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7623 if (!is_error(ret) && arg3) {
c227f099 7624 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
579a97f7 7625 goto efault;
53a5960a 7626 host_to_target_sigset(p, &oldset);
c227f099 7627 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 7628 }
7629 }
7630 break;
e5febef5 7631#ifdef TARGET_NR_sigpending
66fb9763
FB		 7632 case TARGET_NR_sigpending:
7633 {
7634 sigset_t set;
7635 ret = get_errno(sigpending(&set));
7636 if (!is_error(ret)) {
c227f099 7637 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
579a97f7 7638 goto efault;
53a5960a 7639 host_to_target_old_sigset(p, &set);
c227f099 7640 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7641 }
7642 }
7643 break;
e5febef5 7644#endif
66fb9763
FB		 7645 case TARGET_NR_rt_sigpending:
7646 {
7647 sigset_t set;
7648 ret = get_errno(sigpending(&set));
7649 if (!is_error(ret)) {
c227f099 7650 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
579a97f7 7651 goto efault;
53a5960a 7652 host_to_target_sigset(p, &set);
c227f099 7653 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7654 }
7655 }
7656 break;
e5febef5 7657#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 7658 case TARGET_NR_sigsuspend:
7659 {
3d3efba0 7660 TaskState *ts = cpu->opaque;
f43ce12b
RH		 7661#if defined(TARGET_ALPHA)
7662 abi_ulong mask = arg1;
3d3efba0 7663 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 7664#else
c227f099 7665 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 7666 goto efault;
3d3efba0 7667 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 7668 unlock_user(p, arg1, 0);
f43ce12b 7669#endif
3d3efba0
PM		 7670 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
7671 SIGSET_T_SIZE));
7672 if (ret != -TARGET_ERESTARTSYS) {
7673 ts->in_sigsuspend = 1;
7674 }
66fb9763
FB		 7675 }
7676 break;
e5febef5 7677#endif
66fb9763
FB		 7678 case TARGET_NR_rt_sigsuspend:
7679 {
3d3efba0 7680 TaskState *ts = cpu->opaque;
c227f099 7681 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 7682 goto efault;
3d3efba0 7683 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 7684 unlock_user(p, arg1, 0);
3d3efba0
PM		 7685 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
7686 SIGSET_T_SIZE));
7687 if (ret != -TARGET_ERESTARTSYS) {
7688 ts->in_sigsuspend = 1;
7689 }
66fb9763
FB		 7690 }
7691 break;
7692 case TARGET_NR_rt_sigtimedwait:
7693 {
66fb9763
FB		 7694 sigset_t set;
7695 struct timespec uts, *puts;
7696 siginfo_t uinfo;
3b46e624 7697
c227f099 7698 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 7699 goto efault;
53a5960a
PB		 7700 target_to_host_sigset(&set, p);
7701 unlock_user(p, arg1, 0);
7702 if (arg3) {
66fb9763 7703 puts = &uts;
53a5960a 7704 target_to_host_timespec(puts, arg3);
66fb9763
FB		 7705 } else {
7706 puts = NULL;
7707 }
7708 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
974a196d
PJ		 7709 if (!is_error(ret)) {
7710 if (arg2) {
7711 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
7712 0);
7713 if (!p) {
7714 goto efault;
7715 }
7716 host_to_target_siginfo(p, &uinfo);
7717 unlock_user(p, arg2, sizeof(target_siginfo_t));
7718 }
7719 ret = host_to_target_signal(ret);
66fb9763
FB		 7720 }
7721 }
7722 break;
7723 case TARGET_NR_rt_sigqueueinfo:
7724 {
7725 siginfo_t uinfo;
c227f099 7726 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
579a97f7 7727 goto efault;
53a5960a
PB		 7728 target_to_host_siginfo(&uinfo, p);
7729 unlock_user(p, arg1, 0);
66fb9763
FB		 7730 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
7731 }
7732 break;
e5febef5 7733#ifdef TARGET_NR_sigreturn
66fb9763 7734 case TARGET_NR_sigreturn:
3d3efba0
PM		 7735 if (block_signals()) {
7736 ret = -TARGET_ERESTARTSYS;
7737 } else {
7738 ret = do_sigreturn(cpu_env);
7739 }
66fb9763 7740 break;
e5febef5 7741#endif
66fb9763 7742 case TARGET_NR_rt_sigreturn:
3d3efba0
PM		 7743 if (block_signals()) {
7744 ret = -TARGET_ERESTARTSYS;
7745 } else {
7746 ret = do_rt_sigreturn(cpu_env);
7747 }
66fb9763 7748 break;
31e31b8a 7749 case TARGET_NR_sethostname:
579a97f7
FB		 7750 if (!(p = lock_user_string(arg1)))
7751 goto efault;
53a5960a
PB		 7752 ret = get_errno(sethostname(p, arg2));
7753 unlock_user(p, arg1, 0);
31e31b8a
FB		 7754 break;
7755 case TARGET_NR_setrlimit:
9de5e440 7756 {
e22b7015 7757 int resource = target_to_host_resource(arg1);
53a5960a 7758 struct target_rlimit *target_rlim;
9de5e440 7759 struct rlimit rlim;
579a97f7
FB		 7760 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
7761 goto efault;
81bbe906
TY		 7762 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
7763 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 7764 unlock_user_struct(target_rlim, arg2, 0);
9de5e440
FB		 7765 ret = get_errno(setrlimit(resource, &rlim));
7766 }
7767 break;
31e31b8a 7768 case TARGET_NR_getrlimit:
9de5e440 7769 {
e22b7015 7770 int resource = target_to_host_resource(arg1);
53a5960a 7771 struct target_rlimit *target_rlim;
9de5e440 7772 struct rlimit rlim;
3b46e624 7773
9de5e440
FB		 7774 ret = get_errno(getrlimit(resource, &rlim));
7775 if (!is_error(ret)) {
579a97f7
FB		 7776 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
7777 goto efault;
81bbe906
TY		 7778 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
7779 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 7780 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 7781 }
7782 }
7783 break;
31e31b8a 7784 case TARGET_NR_getrusage:
b409186b
FB		 7785 {
7786 struct rusage rusage;
b409186b
FB		 7787 ret = get_errno(getrusage(arg1, &rusage));
7788 if (!is_error(ret)) {
a39fb273 7789 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 7790 }
7791 }
7792 break;
31e31b8a
FB		 7793 case TARGET_NR_gettimeofday:
7794 {
31e31b8a
FB		 7795 struct timeval tv;
7796 ret = get_errno(gettimeofday(&tv, NULL));
7797 if (!is_error(ret)) {
788f5ec4
TS		 7798 if (copy_to_user_timeval(arg1, &tv))
7799 goto efault;
31e31b8a
FB		 7800 }
7801 }
7802 break;
7803 case TARGET_NR_settimeofday:
7804 {
b67d8031 7805 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 7806 struct timezone tz, *ptz = NULL;
7807
b67d8031
PB		 7808 if (arg1) {
7809 if (copy_from_user_timeval(&tv, arg1)) {
7810 goto efault;
7811 }
7812 ptv = &tv;
7813 }
ef4467e9
PB		 7814
7815 if (arg2) {
7816 if (copy_from_user_timezone(&tz, arg2)) {
7817 goto efault;
7818 }
7819 ptz = &tz;
7820 }
7821
b67d8031 7822 ret = get_errno(settimeofday(ptv, ptz));
31e31b8a
FB		 7823 }
7824 break;
9468a5d4 7825#if defined(TARGET_NR_select)
31e31b8a 7826 case TARGET_NR_select:
9468a5d4
LV		 7827#if defined(TARGET_S390X) || defined(TARGET_ALPHA)
7828 ret = do_select(arg1, arg2, arg3, arg4, arg5);
7829#else
f2674e31 7830 {
53a5960a 7831 struct target_sel_arg_struct *sel;
992f48a0 7832 abi_ulong inp, outp, exp, tvp;
53a5960a
PB		 7833 long nsel;
7834
579a97f7
FB		 7835 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
7836 goto efault;
cbb21eed
MB		 7837 nsel = tswapal(sel->n);
7838 inp = tswapal(sel->inp);
7839 outp = tswapal(sel->outp);
7840 exp = tswapal(sel->exp);
7841 tvp = tswapal(sel->tvp);
53a5960a
PB		 7842 unlock_user_struct(sel, arg1, 0);
7843 ret = do_select(nsel, inp, outp, exp, tvp);
f2674e31 7844 }
9468a5d4 7845#endif
f2674e31 7846 break;
9e42382f
RV		 7847#endif
7848#ifdef TARGET_NR_pselect6
7849 case TARGET_NR_pselect6:
055e0906
MF		 7850 {
7851 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
7852 fd_set rfds, wfds, efds;
7853 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
7854 struct timespec ts, *ts_ptr;
7855
7856 /*
7857 * The 6th arg is actually two args smashed together,
7858 * so we cannot use the C library.
7859 */
7860 sigset_t set;
7861 struct {
7862 sigset_t *set;
7863 size_t size;
7864 } sig, *sig_ptr;
7865
7866 abi_ulong arg_sigset, arg_sigsize, *arg7;
7867 target_sigset_t *target_sigset;
7868
7869 n = arg1;
7870 rfd_addr = arg2;
7871 wfd_addr = arg3;
7872 efd_addr = arg4;
7873 ts_addr = arg5;
7874
7875 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
7876 if (ret) {
7877 goto fail;
7878 }
7879 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
7880 if (ret) {
7881 goto fail;
7882 }
7883 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
7884 if (ret) {
7885 goto fail;
7886 }
7887
7888 /*
7889 * This takes a timespec, and not a timeval, so we cannot
7890 * use the do_select() helper ...
7891 */
7892 if (ts_addr) {
7893 if (target_to_host_timespec(&ts, ts_addr)) {
7894 goto efault;
7895 }
7896 ts_ptr = &ts;
7897 } else {
7898 ts_ptr = NULL;
7899 }
7900
7901 /* Extract the two packed args for the sigset */
7902 if (arg6) {
7903 sig_ptr = &sig;
b28a1f33 7904 sig.size = SIGSET_T_SIZE;
055e0906
MF		 7905
7906 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
7907 if (!arg7) {
7908 goto efault;
7909 }
cbb21eed
MB		 7910 arg_sigset = tswapal(arg7[0]);
7911 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 7912 unlock_user(arg7, arg6, 0);
7913
7914 if (arg_sigset) {
7915 sig.set = &set;
8f04eeb3
PM		 7916 if (arg_sigsize != sizeof(*target_sigset)) {
7917 /* Like the kernel, we enforce correct size sigsets */
7918 ret = -TARGET_EINVAL;
7919 goto fail;
7920 }
055e0906
MF		 7921 target_sigset = lock_user(VERIFY_READ, arg_sigset,
7922 sizeof(*target_sigset), 1);
7923 if (!target_sigset) {
7924 goto efault;
7925 }
7926 target_to_host_sigset(&set, target_sigset);
7927 unlock_user(target_sigset, arg_sigset, 0);
7928 } else {
7929 sig.set = NULL;
7930 }
7931 } else {
7932 sig_ptr = NULL;
7933 }
7934
6df9d38d
PM		 7935 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
7936 ts_ptr, sig_ptr));
055e0906
MF		 7937
7938 if (!is_error(ret)) {
7939 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
7940 goto efault;
7941 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
7942 goto efault;
7943 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
7944 goto efault;
7945
7946 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
7947 goto efault;
7948 }
7949 }
7950 break;
048f6b4d 7951#endif
704eff6c 7952#ifdef TARGET_NR_symlink
31e31b8a 7953 case TARGET_NR_symlink:
53a5960a
PB		 7954 {
7955 void *p2;
7956 p = lock_user_string(arg1);
7957 p2 = lock_user_string(arg2);
579a97f7
FB		 7958 if (!p || !p2)
7959 ret = -TARGET_EFAULT;
7960 else
7961 ret = get_errno(symlink(p, p2));
53a5960a
PB		 7962 unlock_user(p2, arg2, 0);
7963 unlock_user(p, arg1, 0);
7964 }
31e31b8a 7965 break;
704eff6c 7966#endif
c0d472b1 7967#if defined(TARGET_NR_symlinkat)
f0b6243d 7968 case TARGET_NR_symlinkat:
f0b6243d 7969 {
579a97f7 7970 void *p2;
f0b6243d
TS		 7971 p = lock_user_string(arg1);
7972 p2 = lock_user_string(arg3);
579a97f7 7973 if (!p || !p2)
0da46a6e 7974 ret = -TARGET_EFAULT;
f0b6243d 7975 else
c0d472b1 7976 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 7977 unlock_user(p2, arg3, 0);
7978 unlock_user(p, arg1, 0);
f0b6243d
TS		 7979 }
7980 break;
7981#endif
ebc05488 7982#ifdef TARGET_NR_oldlstat
31e31b8a
FB		 7983 case TARGET_NR_oldlstat:
7984 goto unimplemented;
ebc05488 7985#endif
704eff6c 7986#ifdef TARGET_NR_readlink
31e31b8a 7987 case TARGET_NR_readlink:
53a5960a 7988 {
463d8e73 7989 void *p2;
53a5960a 7990 p = lock_user_string(arg1);
579a97f7 7991 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 7992 if (!p || !p2) {
579a97f7 7993 ret = -TARGET_EFAULT;
f17f4989
MF		 7994 } else if (!arg3) {
7995 /* Short circuit this for the magic exe check. */
7996 ret = -TARGET_EINVAL;
463d8e73
AS		 7997 } else if (is_proc_myself((const char *)p, "exe")) {
7998 char real[PATH_MAX], *temp;
7999 temp = realpath(exec_path, real);
f17f4989
MF		 8000 /* Return value is # of bytes that we wrote to the buffer. */
8001 if (temp == NULL) {
8002 ret = get_errno(-1);
8003 } else {
8004 /* Don't worry about sign mismatch as earlier mapping
8005 * logic would have thrown a bad address error. */
8006 ret = MIN(strlen(real), arg3);
8007 /* We cannot NUL terminate the string. */
8008 memcpy(p2, real, ret);
8009 }
463d8e73
AS		 8010 } else {
8011 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 8012 }
53a5960a
PB		 8013 unlock_user(p2, arg2, ret);
8014 unlock_user(p, arg1, 0);
8015 }
31e31b8a 8016 break;
704eff6c 8017#endif
c0d472b1 8018#if defined(TARGET_NR_readlinkat)
5e0ccb18 8019 case TARGET_NR_readlinkat:
5e0ccb18 8020 {
579a97f7 8021 void *p2;
5e0ccb18 8022 p = lock_user_string(arg2);
579a97f7 8023 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 8024 if (!p || !p2) {
8025 ret = -TARGET_EFAULT;
8026 } else if (is_proc_myself((const char *)p, "exe")) {
8027 char real[PATH_MAX], *temp;
8028 temp = realpath(exec_path, real);
8029 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8030 snprintf((char *)p2, arg4, "%s", real);
8031 } else {
c0d472b1 8032 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 8033 }
579a97f7
FB		 8034 unlock_user(p2, arg3, ret);
8035 unlock_user(p, arg2, 0);
5e0ccb18
TS		 8036 }
8037 break;
8038#endif
e5febef5 8039#ifdef TARGET_NR_uselib
31e31b8a
FB		 8040 case TARGET_NR_uselib:
8041 goto unimplemented;
e5febef5
TS		 8042#endif
8043#ifdef TARGET_NR_swapon
31e31b8a 8044 case TARGET_NR_swapon:
579a97f7
FB		 8045 if (!(p = lock_user_string(arg1)))
8046 goto efault;
53a5960a
PB		 8047 ret = get_errno(swapon(p, arg2));
8048 unlock_user(p, arg1, 0);
31e31b8a 8049 break;
e5febef5 8050#endif
31e31b8a 8051 case TARGET_NR_reboot:
c07ecc68
LV		 8052 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8053 /* arg4 must be ignored in all other cases */
8054 p = lock_user_string(arg4);
8055 if (!p) {
8056 goto efault;
8057 }
8058 ret = get_errno(reboot(arg1, arg2, arg3, p));
8059 unlock_user(p, arg4, 0);
8060 } else {
8061 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8062 }
0f6b4d21 8063 break;
e5febef5 8064#ifdef TARGET_NR_readdir
31e31b8a
FB		 8065 case TARGET_NR_readdir:
8066 goto unimplemented;
e5febef5
TS		 8067#endif
8068#ifdef TARGET_NR_mmap
31e31b8a 8069 case TARGET_NR_mmap:
09701199
AG		 8070#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8071 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 8072 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8073 || defined(TARGET_S390X)
31e31b8a 8074 {
992f48a0
BS		 8075 abi_ulong *v;
8076 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7
FB		 8077 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
8078 goto efault;
cbb21eed
MB		 8079 v1 = tswapal(v[0]);
8080 v2 = tswapal(v[1]);
8081 v3 = tswapal(v[2]);
8082 v4 = tswapal(v[3]);
8083 v5 = tswapal(v[4]);
8084 v6 = tswapal(v[5]);
53a5960a 8085 unlock_user(v, arg1, 0);
5fafdf24 8086 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 8087 target_to_host_bitmask(v4, mmap_flags_tbl),
8088 v5, v6));
31e31b8a 8089 }
31e31b8a 8090#else
5fafdf24
TS		 8091 ret = get_errno(target_mmap(arg1, arg2, arg3,
8092 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 8093 arg5,
8094 arg6));
31e31b8a 8095#endif
6fb883e8 8096 break;
e5febef5 8097#endif
a315a145 8098#ifdef TARGET_NR_mmap2
6fb883e8 8099 case TARGET_NR_mmap2:
bb7ec043 8100#ifndef MMAP_SHIFT
c573ff67 8101#define MMAP_SHIFT 12
c573ff67 8102#endif
5fafdf24
TS		 8103 ret = get_errno(target_mmap(arg1, arg2, arg3,
8104 target_to_host_bitmask(arg4, mmap_flags_tbl),
5286db75 8105 arg5,
c573ff67 8106 arg6 << MMAP_SHIFT));
31e31b8a 8107 break;
a315a145 8108#endif
31e31b8a 8109 case TARGET_NR_munmap:
54936004 8110 ret = get_errno(target_munmap(arg1, arg2));
31e31b8a 8111 break;
9de5e440 8112 case TARGET_NR_mprotect:
97374d38 8113 {
0429a971 8114 TaskState *ts = cpu->opaque;
97374d38
PB		 8115 /* Special hack to detect libc making the stack executable. */
8116 if ((arg3 & PROT_GROWSDOWN)
8117 && arg1 >= ts->info->stack_limit
8118 && arg1 <= ts->info->start_stack) {
8119 arg3 &= ~PROT_GROWSDOWN;
8120 arg2 = arg2 + arg1 - ts->info->stack_limit;
8121 arg1 = ts->info->stack_limit;
8122 }
8123 }
54936004 8124 ret = get_errno(target_mprotect(arg1, arg2, arg3));
9de5e440 8125 break;
e5febef5 8126#ifdef TARGET_NR_mremap
9de5e440 8127 case TARGET_NR_mremap:
54936004 8128 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
9de5e440 8129 break;
e5febef5 8130#endif
53a5960a 8131 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 8132#ifdef TARGET_NR_msync
9de5e440 8133 case TARGET_NR_msync:
53a5960a 8134 ret = get_errno(msync(g2h(arg1), arg2, arg3));
9de5e440 8135 break;
e5febef5
TS		 8136#endif
8137#ifdef TARGET_NR_mlock
9de5e440 8138 case TARGET_NR_mlock:
53a5960a 8139 ret = get_errno(mlock(g2h(arg1), arg2));
9de5e440 8140 break;
e5febef5
TS		 8141#endif
8142#ifdef TARGET_NR_munlock
9de5e440 8143 case TARGET_NR_munlock:
53a5960a 8144 ret = get_errno(munlock(g2h(arg1), arg2));
9de5e440 8145 break;
e5febef5
TS		 8146#endif
8147#ifdef TARGET_NR_mlockall
9de5e440 8148 case TARGET_NR_mlockall:
6f6a4032 8149 ret = get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
9de5e440 8150 break;
e5febef5
TS		 8151#endif
8152#ifdef TARGET_NR_munlockall
9de5e440
FB		 8153 case TARGET_NR_munlockall:
8154 ret = get_errno(munlockall());
8155 break;
e5febef5 8156#endif
31e31b8a 8157 case TARGET_NR_truncate:
579a97f7
FB		 8158 if (!(p = lock_user_string(arg1)))
8159 goto efault;
53a5960a
PB		 8160 ret = get_errno(truncate(p, arg2));
8161 unlock_user(p, arg1, 0);
31e31b8a
FB		 8162 break;
8163 case TARGET_NR_ftruncate:
8164 ret = get_errno(ftruncate(arg1, arg2));
8165 break;
8166 case TARGET_NR_fchmod:
8167 ret = get_errno(fchmod(arg1, arg2));
8168 break;
c0d472b1 8169#if defined(TARGET_NR_fchmodat)
814d7977 8170 case TARGET_NR_fchmodat:
579a97f7
FB		 8171 if (!(p = lock_user_string(arg2)))
8172 goto efault;
c0d472b1 8173 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 8174 unlock_user(p, arg2, 0);
814d7977
TS		 8175 break;
8176#endif
31e31b8a 8177 case TARGET_NR_getpriority:
95c09828
RH		 8178 /* Note that negative values are valid for getpriority, so we must
8179 differentiate based on errno settings. */
8180 errno = 0;
8181 ret = getpriority(arg1, arg2);
8182 if (ret == -1 && errno != 0) {
8183 ret = -host_to_target_errno(errno);
8184 break;
8185 }
8186#ifdef TARGET_ALPHA
8187 /* Return value is the unbiased priority. Signal no error. */
8188 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8189#else
8190 /* Return value is a biased priority to avoid negative numbers. */
8191 ret = 20 - ret;
8192#endif
31e31b8a
FB		 8193 break;
8194 case TARGET_NR_setpriority:
8195 ret = get_errno(setpriority(arg1, arg2, arg3));
8196 break;
ebc05488 8197#ifdef TARGET_NR_profil
31e31b8a
FB		 8198 case TARGET_NR_profil:
8199 goto unimplemented;
ebc05488 8200#endif
31e31b8a 8201 case TARGET_NR_statfs:
579a97f7
FB		 8202 if (!(p = lock_user_string(arg1)))
8203 goto efault;
53a5960a
PB		 8204 ret = get_errno(statfs(path(p), &stfs));
8205 unlock_user(p, arg1, 0);
31e31b8a
FB		 8206 convert_statfs:
8207 if (!is_error(ret)) {
53a5960a 8208 struct target_statfs *target_stfs;
3b46e624 8209
579a97f7
FB		 8210 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
8211 goto efault;
8212 __put_user(stfs.f_type, &target_stfs->f_type);
8213 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8214 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8215 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8216 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8217 __put_user(stfs.f_files, &target_stfs->f_files);
8218 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8219 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8220 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8221 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8222 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8223 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 8224 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a
FB		 8225 }
8226 break;
8227 case TARGET_NR_fstatfs:
56c8f68f 8228 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 8229 goto convert_statfs;
56c8f68f
FB		 8230#ifdef TARGET_NR_statfs64
8231 case TARGET_NR_statfs64:
579a97f7
FB		 8232 if (!(p = lock_user_string(arg1)))
8233 goto efault;
53a5960a
PB		 8234 ret = get_errno(statfs(path(p), &stfs));
8235 unlock_user(p, arg1, 0);
56c8f68f
FB		 8236 convert_statfs64:
8237 if (!is_error(ret)) {
53a5960a 8238 struct target_statfs64 *target_stfs;
3b46e624 8239
579a97f7
FB		 8240 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
8241 goto efault;
8242 __put_user(stfs.f_type, &target_stfs->f_type);
8243 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8244 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8245 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8246 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8247 __put_user(stfs.f_files, &target_stfs->f_files);
8248 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8249 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8250 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8251 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8252 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8253 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 8254 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f
FB		 8255 }
8256 break;
8257 case TARGET_NR_fstatfs64:
8258 ret = get_errno(fstatfs(arg1, &stfs));
8259 goto convert_statfs64;
8260#endif
ebc05488 8261#ifdef TARGET_NR_ioperm
31e31b8a
FB		 8262 case TARGET_NR_ioperm:
8263 goto unimplemented;
ebc05488 8264#endif
e5febef5 8265#ifdef TARGET_NR_socketcall
31e31b8a 8266 case TARGET_NR_socketcall:
53a5960a 8267 ret = do_socketcall(arg1, arg2);
31e31b8a 8268 break;
e5febef5 8269#endif
3532fa74
FB		 8270#ifdef TARGET_NR_accept
8271 case TARGET_NR_accept:
a94b4987
PM		 8272 ret = do_accept4(arg1, arg2, arg3, 0);
8273 break;
8274#endif
8275#ifdef TARGET_NR_accept4
8276 case TARGET_NR_accept4:
8277#ifdef CONFIG_ACCEPT4
8278 ret = do_accept4(arg1, arg2, arg3, arg4);
8279#else
8280 goto unimplemented;
8281#endif
3532fa74
FB		 8282 break;
8283#endif
8284#ifdef TARGET_NR_bind
8285 case TARGET_NR_bind:
8286 ret = do_bind(arg1, arg2, arg3);
8287 break;
8288#endif
8289#ifdef TARGET_NR_connect
8290 case TARGET_NR_connect:
8291 ret = do_connect(arg1, arg2, arg3);
8292 break;
8293#endif
8294#ifdef TARGET_NR_getpeername
8295 case TARGET_NR_getpeername:
1be9e1dc 8296 ret = do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 8297 break;
8298#endif
8299#ifdef TARGET_NR_getsockname
8300 case TARGET_NR_getsockname:
1be9e1dc 8301 ret = do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 8302 break;
8303#endif
8304#ifdef TARGET_NR_getsockopt
8305 case TARGET_NR_getsockopt:
8306 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
8307 break;
8308#endif
8309#ifdef TARGET_NR_listen
8310 case TARGET_NR_listen:
1be9e1dc 8311 ret = get_errno(listen(arg1, arg2));
3532fa74
FB		 8312 break;
8313#endif
8314#ifdef TARGET_NR_recv
8315 case TARGET_NR_recv:
214201bd 8316 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8317 break;
8318#endif
8319#ifdef TARGET_NR_recvfrom
8320 case TARGET_NR_recvfrom:
214201bd 8321 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8322 break;
8323#endif
8324#ifdef TARGET_NR_recvmsg
8325 case TARGET_NR_recvmsg:
8326 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
8327 break;
8328#endif
8329#ifdef TARGET_NR_send
8330 case TARGET_NR_send:
1be9e1dc 8331 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8332 break;
8333#endif
8334#ifdef TARGET_NR_sendmsg
8335 case TARGET_NR_sendmsg:
8336 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
8337 break;
8338#endif
f19e00d7
AG		 8339#ifdef TARGET_NR_sendmmsg
8340 case TARGET_NR_sendmmsg:
8341 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
8342 break;
8343 case TARGET_NR_recvmmsg:
8344 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
8345 break;
8346#endif
3532fa74
FB		 8347#ifdef TARGET_NR_sendto
8348 case TARGET_NR_sendto:
1be9e1dc 8349 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8350 break;
8351#endif
8352#ifdef TARGET_NR_shutdown
8353 case TARGET_NR_shutdown:
1be9e1dc 8354 ret = get_errno(shutdown(arg1, arg2));
3532fa74
FB		 8355 break;
8356#endif
f894efd1
LV		 8357#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8358 case TARGET_NR_getrandom:
8359 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8360 if (!p) {
8361 goto efault;
8362 }
8363 ret = get_errno(getrandom(p, arg2, arg3));
8364 unlock_user(p, arg1, ret);
8365 break;
8366#endif
3532fa74
FB		 8367#ifdef TARGET_NR_socket
8368 case TARGET_NR_socket:
8369 ret = do_socket(arg1, arg2, arg3);
e36800c9 8370 fd_trans_unregister(ret);
3532fa74
FB		 8371 break;
8372#endif
8373#ifdef TARGET_NR_socketpair
8374 case TARGET_NR_socketpair:
1be9e1dc 8375 ret = do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 8376 break;
8377#endif
8378#ifdef TARGET_NR_setsockopt
8379 case TARGET_NR_setsockopt:
8380 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
8381 break;
8382#endif
7494b0f9 8383
31e31b8a 8384 case TARGET_NR_syslog:
579a97f7
FB		 8385 if (!(p = lock_user_string(arg2)))
8386 goto efault;
e5574487
TS		 8387 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
8388 unlock_user(p, arg2, 0);
7494b0f9
TS		 8389 break;
8390
31e31b8a 8391 case TARGET_NR_setitimer:
66fb9763 8392 {
66fb9763
FB		 8393 struct itimerval value, ovalue, *pvalue;
8394
53a5960a 8395 if (arg2) {
66fb9763 8396 pvalue = &value;
788f5ec4
TS		 8397 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
8398 || copy_from_user_timeval(&pvalue->it_value,
8399 arg2 + sizeof(struct target_timeval)))
8400 goto efault;
66fb9763
FB		 8401 } else {
8402 pvalue = NULL;
8403 }
8404 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 8405 if (!is_error(ret) && arg3) {
788f5ec4
TS		 8406 if (copy_to_user_timeval(arg3,
8407 &ovalue.it_interval)
8408 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
8409 &ovalue.it_value))
8410 goto efault;
66fb9763
FB		 8411 }
8412 }
8413 break;
31e31b8a 8414 case TARGET_NR_getitimer:
66fb9763 8415 {
66fb9763 8416 struct itimerval value;
3b46e624 8417
66fb9763 8418 ret = get_errno(getitimer(arg1, &value));
53a5960a 8419 if (!is_error(ret) && arg2) {
788f5ec4
TS		 8420 if (copy_to_user_timeval(arg2,
8421 &value.it_interval)
8422 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
8423 &value.it_value))
8424 goto efault;
66fb9763
FB		 8425 }
8426 }
8427 break;
704eff6c 8428#ifdef TARGET_NR_stat
31e31b8a 8429 case TARGET_NR_stat:
579a97f7
FB		 8430 if (!(p = lock_user_string(arg1)))
8431 goto efault;
53a5960a
PB		 8432 ret = get_errno(stat(path(p), &st));
8433 unlock_user(p, arg1, 0);
31e31b8a 8434 goto do_stat;
704eff6c
CG		 8435#endif
8436#ifdef TARGET_NR_lstat
31e31b8a 8437 case TARGET_NR_lstat:
579a97f7
FB		 8438 if (!(p = lock_user_string(arg1)))
8439 goto efault;
53a5960a
PB		 8440 ret = get_errno(lstat(path(p), &st));
8441 unlock_user(p, arg1, 0);
31e31b8a 8442 goto do_stat;
704eff6c 8443#endif
31e31b8a
FB		 8444 case TARGET_NR_fstat:
8445 {
8446 ret = get_errno(fstat(arg1, &st));
704eff6c 8447#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 8448 do_stat:
704eff6c 8449#endif
31e31b8a 8450 if (!is_error(ret)) {
53a5960a 8451 struct target_stat *target_st;
e3584658 8452
579a97f7
FB		 8453 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
8454 goto efault;
12727917 8455 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 8456 __put_user(st.st_dev, &target_st->st_dev);
8457 __put_user(st.st_ino, &target_st->st_ino);
8458 __put_user(st.st_mode, &target_st->st_mode);
8459 __put_user(st.st_uid, &target_st->st_uid);
8460 __put_user(st.st_gid, &target_st->st_gid);
8461 __put_user(st.st_nlink, &target_st->st_nlink);
8462 __put_user(st.st_rdev, &target_st->st_rdev);
8463 __put_user(st.st_size, &target_st->st_size);
8464 __put_user(st.st_blksize, &target_st->st_blksize);
8465 __put_user(st.st_blocks, &target_st->st_blocks);
8466 __put_user(st.st_atime, &target_st->target_st_atime);
8467 __put_user(st.st_mtime, &target_st->target_st_mtime);
8468 __put_user(st.st_ctime, &target_st->target_st_ctime);
53a5960a 8469 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 8470 }
8471 }
8472 break;
ebc05488 8473#ifdef TARGET_NR_olduname
31e31b8a
FB		 8474 case TARGET_NR_olduname:
8475 goto unimplemented;
ebc05488
FB		 8476#endif
8477#ifdef TARGET_NR_iopl
31e31b8a
FB		 8478 case TARGET_NR_iopl:
8479 goto unimplemented;
ebc05488 8480#endif
31e31b8a
FB		 8481 case TARGET_NR_vhangup:
8482 ret = get_errno(vhangup());
8483 break;
ebc05488 8484#ifdef TARGET_NR_idle
31e31b8a
FB		 8485 case TARGET_NR_idle:
8486 goto unimplemented;
42ad6ae9
FB		 8487#endif
8488#ifdef TARGET_NR_syscall
8489 case TARGET_NR_syscall:
5945cfcb
PM		 8490 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
8491 arg6, arg7, arg8, 0);
8492 break;
ebc05488 8493#endif
31e31b8a
FB		 8494 case TARGET_NR_wait4:
8495 {
8496 int status;
992f48a0 8497 abi_long status_ptr = arg2;
31e31b8a 8498 struct rusage rusage, *rusage_ptr;
992f48a0 8499 abi_ulong target_rusage = arg4;
a39fb273 8500 abi_long rusage_err;
31e31b8a
FB		 8501 if (target_rusage)
8502 rusage_ptr = &rusage;
8503 else
8504 rusage_ptr = NULL;
4af80a37 8505 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 8506 if (!is_error(ret)) {
5379557b 8507 if (status_ptr && ret) {
1d9d8b55 8508 status = host_to_target_waitstatus(status);
2f619698
FB		 8509 if (put_user_s32(status, status_ptr))
8510 goto efault;
31e31b8a 8511 }
a39fb273
PJ		 8512 if (target_rusage) {
8513 rusage_err = host_to_target_rusage(target_rusage, &rusage);
8514 if (rusage_err) {
8515 ret = rusage_err;
8516 }
8517 }
31e31b8a
FB		 8518 }
8519 }
8520 break;
e5febef5 8521#ifdef TARGET_NR_swapoff
31e31b8a 8522 case TARGET_NR_swapoff:
579a97f7
FB		 8523 if (!(p = lock_user_string(arg1)))
8524 goto efault;
53a5960a
PB		 8525 ret = get_errno(swapoff(p));
8526 unlock_user(p, arg1, 0);
31e31b8a 8527 break;
e5febef5 8528#endif
31e31b8a 8529 case TARGET_NR_sysinfo:
a5448a7d 8530 {
53a5960a 8531 struct target_sysinfo *target_value;
a5448a7d
FB		 8532 struct sysinfo value;
8533 ret = get_errno(sysinfo(&value));
53a5960a 8534 if (!is_error(ret) && arg1)
a5448a7d 8535 {
579a97f7
FB		 8536 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
8537 goto efault;
a5448a7d
FB		 8538 __put_user(value.uptime, &target_value->uptime);
8539 __put_user(value.loads[0], &target_value->loads[0]);
8540 __put_user(value.loads[1], &target_value->loads[1]);
8541 __put_user(value.loads[2], &target_value->loads[2]);
8542 __put_user(value.totalram, &target_value->totalram);
8543 __put_user(value.freeram, &target_value->freeram);
8544 __put_user(value.sharedram, &target_value->sharedram);
8545 __put_user(value.bufferram, &target_value->bufferram);
8546 __put_user(value.totalswap, &target_value->totalswap);
8547 __put_user(value.freeswap, &target_value->freeswap);
8548 __put_user(value.procs, &target_value->procs);
8549 __put_user(value.totalhigh, &target_value->totalhigh);
8550 __put_user(value.freehigh, &target_value->freehigh);
8551 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 8552 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 8553 }
8554 }
8555 break;
e5febef5 8556#ifdef TARGET_NR_ipc
31e31b8a 8557 case TARGET_NR_ipc:
8853f86e
FB		 8558 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
8559 break;
e5febef5 8560#endif
e5289087
AJ		 8561#ifdef TARGET_NR_semget
8562 case TARGET_NR_semget:
8563 ret = get_errno(semget(arg1, arg2, arg3));
8564 break;
8565#endif
8566#ifdef TARGET_NR_semop
8567 case TARGET_NR_semop:
c7128c9f 8568 ret = do_semop(arg1, arg2, arg3);
e5289087
AJ		 8569 break;
8570#endif
8571#ifdef TARGET_NR_semctl
8572 case TARGET_NR_semctl:
d1c002b6 8573 ret = do_semctl(arg1, arg2, arg3, arg4);
e5289087
AJ		 8574 break;
8575#endif
eeb438c1
AJ		 8576#ifdef TARGET_NR_msgctl
8577 case TARGET_NR_msgctl:
8578 ret = do_msgctl(arg1, arg2, arg3);
8579 break;
8580#endif
8581#ifdef TARGET_NR_msgget
8582 case TARGET_NR_msgget:
8583 ret = get_errno(msgget(arg1, arg2));
8584 break;
8585#endif
8586#ifdef TARGET_NR_msgrcv
8587 case TARGET_NR_msgrcv:
8588 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
8589 break;
8590#endif
8591#ifdef TARGET_NR_msgsnd
8592 case TARGET_NR_msgsnd:
8593 ret = do_msgsnd(arg1, arg2, arg3, arg4);
8594 break;
88a8c984
RV		 8595#endif
8596#ifdef TARGET_NR_shmget
8597 case TARGET_NR_shmget:
8598 ret = get_errno(shmget(arg1, arg2, arg3));
8599 break;
8600#endif
8601#ifdef TARGET_NR_shmctl
8602 case TARGET_NR_shmctl:
8603 ret = do_shmctl(arg1, arg2, arg3);
8604 break;
8605#endif
8606#ifdef TARGET_NR_shmat
8607 case TARGET_NR_shmat:
8608 ret = do_shmat(arg1, arg2, arg3);
8609 break;
8610#endif
8611#ifdef TARGET_NR_shmdt
8612 case TARGET_NR_shmdt:
8613 ret = do_shmdt(arg1);
8614 break;
eeb438c1 8615#endif
31e31b8a
FB		 8616 case TARGET_NR_fsync:
8617 ret = get_errno(fsync(arg1));
8618 break;
31e31b8a 8619 case TARGET_NR_clone:
4ce6243d
PM		 8620 /* Linux manages to have three different orderings for its
8621 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
8622 * match the kernel's CONFIG_CLONE_* settings.
8623 * Microblaze is further special in that it uses a sixth
8624 * implicit argument to clone for the TLS pointer.
8625 */
8626#if defined(TARGET_MICROBLAZE)
a5b3bdcb 8627 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 8628#elif defined(TARGET_CLONE_BACKWARDS)
8629 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
8630#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 8631 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 8632#else
4ce6243d 8633 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 8634#endif
1b6b029e 8635 break;
ec86b0fb
FB		 8636#ifdef __NR_exit_group
8637 /* new thread calls */
8638 case TARGET_NR_exit_group:
9788c9ca 8639#ifdef TARGET_GPROF
6d946cda
AJ		 8640 _mcleanup();
8641#endif
e9009676 8642 gdb_exit(cpu_env, arg1);
ec86b0fb
FB		 8643 ret = get_errno(exit_group(arg1));
8644 break;
8645#endif
31e31b8a 8646 case TARGET_NR_setdomainname:
579a97f7
FB		 8647 if (!(p = lock_user_string(arg1)))
8648 goto efault;
53a5960a
PB		 8649 ret = get_errno(setdomainname(p, arg2));
8650 unlock_user(p, arg1, 0);
31e31b8a
FB		 8651 break;
8652 case TARGET_NR_uname:
8653 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 8654 {
8655 struct new_utsname * buf;
3b46e624 8656
579a97f7
FB		 8657 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
8658 goto efault;
29e619b1
FB		 8659 ret = get_errno(sys_uname(buf));
8660 if (!is_error(ret)) {
8661 /* Overrite the native machine name with whatever is being
8662 emulated. */
da79030f 8663 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
c5937220
PB		 8664 /* Allow the user to override the reported release. */
8665 if (qemu_uname_release && *qemu_uname_release)
8666 strcpy (buf->release, qemu_uname_release);
29e619b1 8667 }
53a5960a 8668 unlock_user_struct(buf, arg1, 1);
29e619b1 8669 }
31e31b8a 8670 break;
6dbad63e 8671#ifdef TARGET_I386
31e31b8a 8672 case TARGET_NR_modify_ldt:
03acab66 8673 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
5cd4393b 8674 break;
84409ddb 8675#if !defined(TARGET_X86_64)
5cd4393b
FB		 8676 case TARGET_NR_vm86old:
8677 goto unimplemented;
8678 case TARGET_NR_vm86:
53a5960a 8679 ret = do_vm86(cpu_env, arg1, arg2);
6dbad63e 8680 break;
84409ddb 8681#endif
6dbad63e 8682#endif
31e31b8a
FB		 8683 case TARGET_NR_adjtimex:
8684 goto unimplemented;
e5febef5 8685#ifdef TARGET_NR_create_module
31e31b8a 8686 case TARGET_NR_create_module:
e5febef5 8687#endif
31e31b8a
FB		 8688 case TARGET_NR_init_module:
8689 case TARGET_NR_delete_module:
e5febef5 8690#ifdef TARGET_NR_get_kernel_syms
31e31b8a 8691 case TARGET_NR_get_kernel_syms:
e5febef5 8692#endif
31e31b8a
FB		 8693 goto unimplemented;
8694 case TARGET_NR_quotactl:
8695 goto unimplemented;
8696 case TARGET_NR_getpgid:
8697 ret = get_errno(getpgid(arg1));
8698 break;
8699 case TARGET_NR_fchdir:
8700 ret = get_errno(fchdir(arg1));
8701 break;
84409ddb 8702#ifdef TARGET_NR_bdflush /* not on x86_64 */
31e31b8a
FB		 8703 case TARGET_NR_bdflush:
8704 goto unimplemented;
84409ddb 8705#endif
e5febef5 8706#ifdef TARGET_NR_sysfs
31e31b8a
FB		 8707 case TARGET_NR_sysfs:
8708 goto unimplemented;
e5febef5 8709#endif
31e31b8a 8710 case TARGET_NR_personality:
1b6b029e 8711 ret = get_errno(personality(arg1));
31e31b8a 8712 break;
e5febef5 8713#ifdef TARGET_NR_afs_syscall
31e31b8a
FB		 8714 case TARGET_NR_afs_syscall:
8715 goto unimplemented;
e5febef5 8716#endif
7a3148a9 8717#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 8718 case TARGET_NR__llseek:
8719 {
0c1592d9 8720 int64_t res;
d35b261c 8721#if !defined(__NR_llseek)
0c1592d9
PM		 8722 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
8723 if (res == -1) {
8724 ret = get_errno(res);
8725 } else {
8726 ret = 0;
8727 }
4f2ac237 8728#else
31e31b8a 8729 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 8730#endif
0c1592d9
PM		 8731 if ((ret == 0) && put_user_s64(res, arg4)) {
8732 goto efault;
8733 }
31e31b8a
FB		 8734 }
8735 break;
7a3148a9 8736#endif
704eff6c 8737#ifdef TARGET_NR_getdents
31e31b8a 8738 case TARGET_NR_getdents:
3307e236 8739#ifdef __NR_getdents
d83c8733 8740#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 8741 {
53a5960a 8742 struct target_dirent *target_dirp;
6556a833 8743 struct linux_dirent *dirp;
992f48a0 8744 abi_long count = arg3;
4add45b4 8745
0e173b24
HK		 8746 dirp = g_try_malloc(count);
8747 if (!dirp) {
579a97f7 8748 ret = -TARGET_ENOMEM;
0da46a6e
TS		 8749 goto fail;
8750 }
3b46e624 8751
4add45b4
FB		 8752 ret = get_errno(sys_getdents(arg1, dirp, count));
8753 if (!is_error(ret)) {
6556a833 8754 struct linux_dirent *de;
4add45b4
FB		 8755 struct target_dirent *tde;
8756 int len = ret;
8757 int reclen, treclen;
8758 int count1, tnamelen;
8759
8760 count1 = 0;
8761 de = dirp;
579a97f7
FB		 8762 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
8763 goto efault;
4add45b4
FB		 8764 tde = target_dirp;
8765 while (len > 0) {
8766 reclen = de->d_reclen;
333858b7
DL		 8767 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
8768 assert(tnamelen >= 0);
8769 treclen = tnamelen + offsetof(struct target_dirent, d_name);
8770 assert(count1 + treclen <= count);
4add45b4 8771 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 8772 tde->d_ino = tswapal(de->d_ino);
8773 tde->d_off = tswapal(de->d_off);
333858b7 8774 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 8775 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 8776 len -= reclen;
1c5bf3bf 8777 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 8778 count1 += treclen;
8779 }
8780 ret = count1;
579a97f7 8781 unlock_user(target_dirp, arg2, ret);
4add45b4 8782 }
0e173b24 8783 g_free(dirp);
4add45b4
FB		 8784 }
8785#else
31e31b8a 8786 {
6556a833 8787 struct linux_dirent *dirp;
992f48a0 8788 abi_long count = arg3;
dab2ed99 8789
579a97f7
FB		 8790 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
8791 goto efault;
72f03900 8792 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 8793 if (!is_error(ret)) {
6556a833 8794 struct linux_dirent *de;
31e31b8a
FB		 8795 int len = ret;
8796 int reclen;
8797 de = dirp;
8798 while (len > 0) {
8083a3e5 8799 reclen = de->d_reclen;
31e31b8a
FB		 8800 if (reclen > len)
8801 break;
8083a3e5 8802 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 8803 tswapls(&de->d_ino);
8804 tswapls(&de->d_off);
6556a833 8805 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 8806 len -= reclen;
8807 }
8808 }
53a5960a 8809 unlock_user(dirp, arg2, ret);
3307e236
PM		 8810 }
8811#endif
8812#else
8813 /* Implement getdents in terms of getdents64 */
8814 {
8815 struct linux_dirent64 *dirp;
8816 abi_long count = arg3;
8817
8818 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
8819 if (!dirp) {
8820 goto efault;
8821 }
8822 ret = get_errno(sys_getdents64(arg1, dirp, count));
8823 if (!is_error(ret)) {
8824 /* Convert the dirent64 structs to target dirent. We do this
8825 * in-place, since we can guarantee that a target_dirent is no
8826 * larger than a dirent64; however this means we have to be
8827 * careful to read everything before writing in the new format.
8828 */
8829 struct linux_dirent64 *de;
8830 struct target_dirent *tde;
8831 int len = ret;
8832 int tlen = 0;
8833
8834 de = dirp;
8835 tde = (struct target_dirent *)dirp;
8836 while (len > 0) {
8837 int namelen, treclen;
8838 int reclen = de->d_reclen;
8839 uint64_t ino = de->d_ino;
8840 int64_t off = de->d_off;
8841 uint8_t type = de->d_type;
8842
8843 namelen = strlen(de->d_name);
8844 treclen = offsetof(struct target_dirent, d_name)
8845 + namelen + 2;
8846 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
8847
8848 memmove(tde->d_name, de->d_name, namelen + 1);
8849 tde->d_ino = tswapal(ino);
8850 tde->d_off = tswapal(off);
8851 tde->d_reclen = tswap16(treclen);
8852 /* The target_dirent type is in what was formerly a padding
8853 * byte at the end of the structure:
8854 */
8855 *(((char *)tde) + treclen - 1) = type;
8856
8857 de = (struct linux_dirent64 *)((char *)de + reclen);
8858 tde = (struct target_dirent *)((char *)tde + treclen);
8859 len -= reclen;
8860 tlen += treclen;
8861 }
8862 ret = tlen;
8863 }
8864 unlock_user(dirp, arg2, ret);
31e31b8a 8865 }
4add45b4 8866#endif
31e31b8a 8867 break;
704eff6c 8868#endif /* TARGET_NR_getdents */
3ae43202 8869#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 8870 case TARGET_NR_getdents64:
8871 {
6556a833 8872 struct linux_dirent64 *dirp;
992f48a0 8873 abi_long count = arg3;
579a97f7
FB		 8874 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
8875 goto efault;
dab2ed99
FB		 8876 ret = get_errno(sys_getdents64(arg1, dirp, count));
8877 if (!is_error(ret)) {
6556a833 8878 struct linux_dirent64 *de;
dab2ed99
FB		 8879 int len = ret;
8880 int reclen;
8881 de = dirp;
8882 while (len > 0) {
8083a3e5 8883 reclen = de->d_reclen;
dab2ed99
FB		 8884 if (reclen > len)
8885 break;
8083a3e5 8886 de->d_reclen = tswap16(reclen);
8582a53a
FB		 8887 tswap64s((uint64_t *)&de->d_ino);
8888 tswap64s((uint64_t *)&de->d_off);
6556a833 8889 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 8890 len -= reclen;
8891 }
8892 }
53a5960a 8893 unlock_user(dirp, arg2, ret);
dab2ed99
FB		 8894 }
8895 break;
a541f297 8896#endif /* TARGET_NR_getdents64 */
9468a5d4 8897#if defined(TARGET_NR__newselect)
31e31b8a 8898 case TARGET_NR__newselect:
53a5960a 8899 ret = do_select(arg1, arg2, arg3, arg4, arg5);
31e31b8a 8900 break;
e5febef5 8901#endif
d8035d4c
MF		 8902#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
8903# ifdef TARGET_NR_poll
9de5e440 8904 case TARGET_NR_poll:
d8035d4c
MF		 8905# endif
8906# ifdef TARGET_NR_ppoll
8907 case TARGET_NR_ppoll:
8908# endif
9de5e440 8909 {
53a5960a 8910 struct target_pollfd *target_pfd;
9de5e440
FB		 8911 unsigned int nfds = arg2;
8912 int timeout = arg3;
8913 struct pollfd *pfd;
7854b056 8914 unsigned int i;
9de5e440 8915
3e24bb3f
LV		 8916 pfd = NULL;
8917 target_pfd = NULL;
8918 if (nfds) {
8919 target_pfd = lock_user(VERIFY_WRITE, arg1,
8920 sizeof(struct target_pollfd) * nfds, 1);
8921 if (!target_pfd) {
8922 goto efault;
8923 }
d8035d4c 8924
3e24bb3f
LV		 8925 pfd = alloca(sizeof(struct pollfd) * nfds);
8926 for (i = 0; i < nfds; i++) {
8927 pfd[i].fd = tswap32(target_pfd[i].fd);
8928 pfd[i].events = tswap16(target_pfd[i].events);
8929 }
9de5e440 8930 }
d8035d4c
MF		 8931
8932# ifdef TARGET_NR_ppoll
8933 if (num == TARGET_NR_ppoll) {
8934 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
8935 target_sigset_t *target_set;
8936 sigset_t _set, *set = &_set;
8937
8938 if (arg3) {
8939 if (target_to_host_timespec(timeout_ts, arg3)) {
8940 unlock_user(target_pfd, arg1, 0);
8941 goto efault;
8942 }
8943 } else {
8944 timeout_ts = NULL;
8945 }
8946
8947 if (arg4) {
8948 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
8949 if (!target_set) {
8950 unlock_user(target_pfd, arg1, 0);
8951 goto efault;
8952 }
8953 target_to_host_sigset(set, target_set);
8954 } else {
8955 set = NULL;
8956 }
8957
b28a1f33
PM		 8958 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts,
8959 set, SIGSET_T_SIZE));
d8035d4c
MF		 8960
8961 if (!is_error(ret) && arg3) {
8962 host_to_target_timespec(arg3, timeout_ts);
8963 }
8964 if (arg4) {
8965 unlock_user(target_set, arg4, 0);
8966 }
8967 } else
8968# endif
8969 ret = get_errno(poll(pfd, nfds, timeout));
8970
9de5e440
FB		 8971 if (!is_error(ret)) {
8972 for(i = 0; i < nfds; i++) {
5cd4393b 8973 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 8974 }
8975 }
30cb4cde 8976 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440
FB		 8977 }
8978 break;
e5febef5 8979#endif
31e31b8a 8980 case TARGET_NR_flock:
9de5e440
FB		 8981 /* NOTE: the flock constant seems to be the same for every
8982 Linux platform */
8983 ret = get_errno(flock(arg1, arg2));
31e31b8a
FB		 8984 break;
8985 case TARGET_NR_readv:
8986 {
f287b2c2
RH		 8987 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
8988 if (vec != NULL) {
8989 ret = get_errno(readv(arg1, vec, arg3));
8990 unlock_iovec(vec, arg2, arg3, 1);
8991 } else {
8992 ret = -host_to_target_errno(errno);
8993 }
31e31b8a
FB		 8994 }
8995 break;
8996 case TARGET_NR_writev:
8997 {
f287b2c2
RH		 8998 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
8999 if (vec != NULL) {
9000 ret = get_errno(writev(arg1, vec, arg3));
9001 unlock_iovec(vec, arg2, arg3, 0);
9002 } else {
9003 ret = -host_to_target_errno(errno);
9004 }
31e31b8a
FB		 9005 }
9006 break;
9007 case TARGET_NR_getsid:
9008 ret = get_errno(getsid(arg1));
9009 break;
7a3148a9 9010#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 9011 case TARGET_NR_fdatasync:
5cd4393b
FB		 9012 ret = get_errno(fdatasync(arg1));
9013 break;
7a3148a9 9014#endif
704eff6c 9015#ifdef TARGET_NR__sysctl
31e31b8a 9016 case TARGET_NR__sysctl:
0da46a6e 9017 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 9018 return value. */
0da46a6e
TS		 9019 ret = -TARGET_ENOTDIR;
9020 break;
704eff6c 9021#endif
737de1d1
MF		 9022 case TARGET_NR_sched_getaffinity:
9023 {
9024 unsigned int mask_size;
9025 unsigned long *mask;
9026
9027 /*
9028 * sched_getaffinity needs multiples of ulong, so need to take
9029 * care of mismatches between target ulong and host ulong sizes.
9030 */
9031 if (arg2 & (sizeof(abi_ulong) - 1)) {
9032 ret = -TARGET_EINVAL;
9033 break;
9034 }
9035 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9036
9037 mask = alloca(mask_size);
9038 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9039
9040 if (!is_error(ret)) {
be3bd286
PM		 9041 if (ret > arg2) {
9042 /* More data returned than the caller's buffer will fit.
9043 * This only happens if sizeof(abi_long) < sizeof(long)
9044 * and the caller passed us a buffer holding an odd number
9045 * of abi_longs. If the host kernel is actually using the
9046 * extra 4 bytes then fail EINVAL; otherwise we can just
9047 * ignore them and only copy the interesting part.
9048 */
9049 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9050 if (numcpus > arg2 * 8) {
9051 ret = -TARGET_EINVAL;
9052 break;
9053 }
9054 ret = arg2;
9055 }
9056
cd18f05e 9057 if (copy_to_user(arg3, mask, ret)) {
737de1d1
MF		 9058 goto efault;
9059 }
737de1d1
MF		 9060 }
9061 }
9062 break;
9063 case TARGET_NR_sched_setaffinity:
9064 {
9065 unsigned int mask_size;
9066 unsigned long *mask;
9067
9068 /*
9069 * sched_setaffinity needs multiples of ulong, so need to take
9070 * care of mismatches between target ulong and host ulong sizes.
9071 */
9072 if (arg2 & (sizeof(abi_ulong) - 1)) {
9073 ret = -TARGET_EINVAL;
9074 break;
9075 }
9076 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9077
9078 mask = alloca(mask_size);
9079 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
9080 goto efault;
9081 }
9082 memcpy(mask, p, arg2);
9083 unlock_user_struct(p, arg2, 0);
9084
9085 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
9086 }
9087 break;
31e31b8a 9088 case TARGET_NR_sched_setparam:
5cd4393b 9089 {
53a5960a 9090 struct sched_param *target_schp;
5cd4393b 9091 struct sched_param schp;
53a5960a 9092
a1d5c5b2
TM		 9093 if (arg2 == 0) {
9094 return -TARGET_EINVAL;
9095 }
579a97f7
FB		 9096 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
9097 goto efault;
5cd4393b 9098 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9099 unlock_user_struct(target_schp, arg2, 0);
5cd4393b
FB		 9100 ret = get_errno(sched_setparam(arg1, &schp));
9101 }
9102 break;
31e31b8a 9103 case TARGET_NR_sched_getparam:
5cd4393b 9104 {
53a5960a 9105 struct sched_param *target_schp;
5cd4393b 9106 struct sched_param schp;
a1d5c5b2
TM		 9107
9108 if (arg2 == 0) {
9109 return -TARGET_EINVAL;
9110 }
5cd4393b
FB		 9111 ret = get_errno(sched_getparam(arg1, &schp));
9112 if (!is_error(ret)) {
579a97f7
FB		 9113 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
9114 goto efault;
5cd4393b 9115 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 9116 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 9117 }
9118 }
9119 break;
31e31b8a 9120 case TARGET_NR_sched_setscheduler:
5cd4393b 9121 {
53a5960a 9122 struct sched_param *target_schp;
5cd4393b 9123 struct sched_param schp;
a1d5c5b2
TM		 9124 if (arg3 == 0) {
9125 return -TARGET_EINVAL;
9126 }
579a97f7
FB		 9127 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
9128 goto efault;
5cd4393b 9129 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9130 unlock_user_struct(target_schp, arg3, 0);
5cd4393b
FB		 9131 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
9132 }
9133 break;
31e31b8a 9134 case TARGET_NR_sched_getscheduler:
5cd4393b
FB		 9135 ret = get_errno(sched_getscheduler(arg1));
9136 break;
31e31b8a
FB		 9137 case TARGET_NR_sched_yield:
9138 ret = get_errno(sched_yield());
9139 break;
9140 case TARGET_NR_sched_get_priority_max:
5cd4393b
FB		 9141 ret = get_errno(sched_get_priority_max(arg1));
9142 break;
31e31b8a 9143 case TARGET_NR_sched_get_priority_min:
5cd4393b
FB		 9144 ret = get_errno(sched_get_priority_min(arg1));
9145 break;
31e31b8a 9146 case TARGET_NR_sched_rr_get_interval:
5cd4393b 9147 {
5cd4393b
FB		 9148 struct timespec ts;
9149 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9150 if (!is_error(ret)) {
d4290c40 9151 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 9152 }
9153 }
9154 break;
31e31b8a 9155 case TARGET_NR_nanosleep:
1b6b029e 9156 {
1b6b029e 9157 struct timespec req, rem;
53a5960a 9158 target_to_host_timespec(&req, arg1);
1b6b029e 9159 ret = get_errno(nanosleep(&req, &rem));
53a5960a
PB		 9160 if (is_error(ret) && arg2) {
9161 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 9162 }
9163 }
9164 break;
e5febef5 9165#ifdef TARGET_NR_query_module
31e31b8a 9166 case TARGET_NR_query_module:
5cd4393b 9167 goto unimplemented;
e5febef5
TS		 9168#endif
9169#ifdef TARGET_NR_nfsservctl
31e31b8a 9170 case TARGET_NR_nfsservctl:
5cd4393b 9171 goto unimplemented;
e5febef5 9172#endif
31e31b8a 9173 case TARGET_NR_prctl:
1e6722f8
PM		 9174 switch (arg1) {
9175 case PR_GET_PDEATHSIG:
9176 {
9177 int deathsig;
9178 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9179 if (!is_error(ret) && arg2
9180 && put_user_ual(deathsig, arg2)) {
9181 goto efault;
e5574487 9182 }
1e6722f8
PM		 9183 break;
9184 }
db9526b1
PM		 9185#ifdef PR_GET_NAME
9186 case PR_GET_NAME:
9187 {
9188 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9189 if (!name) {
9190 goto efault;
9191 }
9192 ret = get_errno(prctl(arg1, (unsigned long)name,
9193 arg3, arg4, arg5));
9194 unlock_user(name, arg2, 16);
9195 break;
9196 }
9197 case PR_SET_NAME:
9198 {
9199 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9200 if (!name) {
9201 goto efault;
9202 }
9203 ret = get_errno(prctl(arg1, (unsigned long)name,
9204 arg3, arg4, arg5));
9205 unlock_user(name, arg2, 0);
9206 break;
9207 }
9208#endif
1e6722f8
PM		 9209 default:
9210 /* Most prctl options have no pointer arguments */
9211 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
9212 break;
9213 }
39b9aae1 9214 break;
d2fd1af7
FB		 9215#ifdef TARGET_NR_arch_prctl
9216 case TARGET_NR_arch_prctl:
9217#if defined(TARGET_I386) && !defined(TARGET_ABI32)
9218 ret = do_arch_prctl(cpu_env, arg1, arg2);
9219 break;
9220#else
9221 goto unimplemented;
9222#endif
9223#endif
f2c7ba15
AJ		 9224#ifdef TARGET_NR_pread64
9225 case TARGET_NR_pread64:
ae017a5b
AG		 9226 if (regpairs_aligned(cpu_env)) {
9227 arg4 = arg5;
9228 arg5 = arg6;
9229 }
f2c7ba15
AJ		 9230 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
9231 goto efault;
9232 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
9233 unlock_user(p, arg2, ret);
9234 break;
9235 case TARGET_NR_pwrite64:
ae017a5b
AG		 9236 if (regpairs_aligned(cpu_env)) {
9237 arg4 = arg5;
9238 arg5 = arg6;
9239 }
f2c7ba15
AJ		 9240 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
9241 goto efault;
9242 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
9243 unlock_user(p, arg2, 0);
9244 break;
67867308 9245#endif
31e31b8a 9246 case TARGET_NR_getcwd:
579a97f7
FB		 9247 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
9248 goto efault;
53a5960a
PB		 9249 ret = get_errno(sys_getcwd1(p, arg2));
9250 unlock_user(p, arg1, ret);
31e31b8a
FB		 9251 break;
9252 case TARGET_NR_capget:
9253 case TARGET_NR_capset:
e0eb210e
PM		 9254 {
9255 struct target_user_cap_header *target_header;
9256 struct target_user_cap_data *target_data = NULL;
9257 struct __user_cap_header_struct header;
9258 struct __user_cap_data_struct data[2];
9259 struct __user_cap_data_struct *dataptr = NULL;
9260 int i, target_datalen;
9261 int data_items = 1;
9262
9263 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
9264 goto efault;
9265 }
9266 header.version = tswap32(target_header->version);
9267 header.pid = tswap32(target_header->pid);
9268
ec864874 9269 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 9270 /* Version 2 and up takes pointer to two user_data structs */
9271 data_items = 2;
9272 }
9273
9274 target_datalen = sizeof(*target_data) * data_items;
9275
9276 if (arg2) {
9277 if (num == TARGET_NR_capget) {
9278 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
9279 } else {
9280 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
9281 }
9282 if (!target_data) {
9283 unlock_user_struct(target_header, arg1, 0);
9284 goto efault;
9285 }
9286
9287 if (num == TARGET_NR_capset) {
9288 for (i = 0; i < data_items; i++) {
9289 data[i].effective = tswap32(target_data[i].effective);
9290 data[i].permitted = tswap32(target_data[i].permitted);
9291 data[i].inheritable = tswap32(target_data[i].inheritable);
9292 }
9293 }
9294
9295 dataptr = data;
9296 }
9297
9298 if (num == TARGET_NR_capget) {
9299 ret = get_errno(capget(&header, dataptr));
9300 } else {
9301 ret = get_errno(capset(&header, dataptr));
9302 }
9303
9304 /* The kernel always updates version for both capget and capset */
9305 target_header->version = tswap32(header.version);
9306 unlock_user_struct(target_header, arg1, 1);
9307
9308 if (arg2) {
9309 if (num == TARGET_NR_capget) {
9310 for (i = 0; i < data_items; i++) {
9311 target_data[i].effective = tswap32(data[i].effective);
9312 target_data[i].permitted = tswap32(data[i].permitted);
9313 target_data[i].inheritable = tswap32(data[i].inheritable);
9314 }
9315 unlock_user(target_data, arg2, target_datalen);
9316 } else {
9317 unlock_user(target_data, arg2, 0);
9318 }
9319 }
9320 break;
9321 }
31e31b8a 9322 case TARGET_NR_sigaltstack:
9349b4f9 9323 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
a04e134a 9324 break;
a8fd1aba
PM		 9325
9326#ifdef CONFIG_SENDFILE
9327 case TARGET_NR_sendfile:
9328 {
9329 off_t *offp = NULL;
9330 off_t off;
9331 if (arg3) {
9332 ret = get_user_sal(off, arg3);
9333 if (is_error(ret)) {
9334 break;
9335 }
9336 offp = &off;
9337 }
9338 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9339 if (!is_error(ret) && arg3) {
9340 abi_long ret2 = put_user_sal(off, arg3);
9341 if (is_error(ret2)) {
9342 ret = ret2;
9343 }
9344 }
9345 break;
9346 }
9347#ifdef TARGET_NR_sendfile64
9348 case TARGET_NR_sendfile64:
9349 {
9350 off_t *offp = NULL;
9351 off_t off;
9352 if (arg3) {
9353 ret = get_user_s64(off, arg3);
9354 if (is_error(ret)) {
9355 break;
9356 }
9357 offp = &off;
9358 }
9359 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9360 if (!is_error(ret) && arg3) {
9361 abi_long ret2 = put_user_s64(off, arg3);
9362 if (is_error(ret2)) {
9363 ret = ret2;
9364 }
9365 }
9366 break;
9367 }
9368#endif
9369#else
31e31b8a 9370 case TARGET_NR_sendfile:
7edd2cf1 9371#ifdef TARGET_NR_sendfile64
a8fd1aba
PM		 9372 case TARGET_NR_sendfile64:
9373#endif
5cd4393b 9374 goto unimplemented;
a8fd1aba
PM		 9375#endif
9376
ebc05488 9377#ifdef TARGET_NR_getpmsg
31e31b8a 9378 case TARGET_NR_getpmsg:
5cd4393b 9379 goto unimplemented;
ebc05488
FB		 9380#endif
9381#ifdef TARGET_NR_putpmsg
31e31b8a 9382 case TARGET_NR_putpmsg:
5cd4393b 9383 goto unimplemented;
ebc05488 9384#endif
048f6b4d 9385#ifdef TARGET_NR_vfork
31e31b8a 9386 case TARGET_NR_vfork:
d865bab5
PB		 9387 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
9388 0, 0, 0, 0));
31e31b8a 9389 break;
048f6b4d 9390#endif
ebc05488 9391#ifdef TARGET_NR_ugetrlimit
31e31b8a 9392 case TARGET_NR_ugetrlimit:
728584be
FB		 9393 {
9394 struct rlimit rlim;
e22b7015
WT		 9395 int resource = target_to_host_resource(arg1);
9396 ret = get_errno(getrlimit(resource, &rlim));
728584be 9397 if (!is_error(ret)) {
53a5960a 9398 struct target_rlimit *target_rlim;
579a97f7
FB		 9399 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
9400 goto efault;
81bbe906
TY		 9401 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9402 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 9403 unlock_user_struct(target_rlim, arg2, 1);
728584be
FB		 9404 }
9405 break;
9406 }
ebc05488 9407#endif
a315a145 9408#ifdef TARGET_NR_truncate64
31e31b8a 9409 case TARGET_NR_truncate64:
579a97f7
FB		 9410 if (!(p = lock_user_string(arg1)))
9411 goto efault;
53a5960a
PB		 9412 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
9413 unlock_user(p, arg1, 0);
667f38b1 9414 break;
a315a145
FB		 9415#endif
9416#ifdef TARGET_NR_ftruncate64
31e31b8a 9417 case TARGET_NR_ftruncate64:
ce4defa0 9418 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
667f38b1 9419 break;
a315a145
FB		 9420#endif
9421#ifdef TARGET_NR_stat64
31e31b8a 9422 case TARGET_NR_stat64:
579a97f7
FB		 9423 if (!(p = lock_user_string(arg1)))
9424 goto efault;
53a5960a
PB		 9425 ret = get_errno(stat(path(p), &st));
9426 unlock_user(p, arg1, 0);
6a24a778
AZ		 9427 if (!is_error(ret))
9428 ret = host_to_target_stat64(cpu_env, arg2, &st);
9429 break;
a315a145
FB		 9430#endif
9431#ifdef TARGET_NR_lstat64
31e31b8a 9432 case TARGET_NR_lstat64:
579a97f7
FB		 9433 if (!(p = lock_user_string(arg1)))
9434 goto efault;
53a5960a
PB		 9435 ret = get_errno(lstat(path(p), &st));
9436 unlock_user(p, arg1, 0);
6a24a778
AZ		 9437 if (!is_error(ret))
9438 ret = host_to_target_stat64(cpu_env, arg2, &st);
9439 break;
a315a145
FB		 9440#endif
9441#ifdef TARGET_NR_fstat64
31e31b8a 9442 case TARGET_NR_fstat64:
6a24a778
AZ		 9443 ret = get_errno(fstat(arg1, &st));
9444 if (!is_error(ret))
9445 ret = host_to_target_stat64(cpu_env, arg2, &st);
9446 break;
ce4defa0 9447#endif
c0d472b1 9448#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 9449#ifdef TARGET_NR_fstatat64
6a24a778 9450 case TARGET_NR_fstatat64:
9d33b76b
AJ		 9451#endif
9452#ifdef TARGET_NR_newfstatat
9453 case TARGET_NR_newfstatat:
9454#endif
6a24a778
AZ		 9455 if (!(p = lock_user_string(arg2)))
9456 goto efault;
c0d472b1 9457 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
6a24a778
AZ		 9458 if (!is_error(ret))
9459 ret = host_to_target_stat64(cpu_env, arg3, &st);
60cd49d5 9460 break;
a315a145 9461#endif
704eff6c 9462#ifdef TARGET_NR_lchown
67867308 9463 case TARGET_NR_lchown:
579a97f7
FB		 9464 if (!(p = lock_user_string(arg1)))
9465 goto efault;
53a5960a
PB		 9466 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
9467 unlock_user(p, arg1, 0);
67867308 9468 break;
704eff6c 9469#endif
0c866a7e 9470#ifdef TARGET_NR_getuid
67867308
FB		 9471 case TARGET_NR_getuid:
9472 ret = get_errno(high2lowuid(getuid()));
9473 break;
0c866a7e
RV		 9474#endif
9475#ifdef TARGET_NR_getgid
67867308
FB		 9476 case TARGET_NR_getgid:
9477 ret = get_errno(high2lowgid(getgid()));
9478 break;
0c866a7e
RV		 9479#endif
9480#ifdef TARGET_NR_geteuid
67867308
FB		 9481 case TARGET_NR_geteuid:
9482 ret = get_errno(high2lowuid(geteuid()));
9483 break;
0c866a7e
RV		 9484#endif
9485#ifdef TARGET_NR_getegid
67867308
FB		 9486 case TARGET_NR_getegid:
9487 ret = get_errno(high2lowgid(getegid()));
9488 break;
0c866a7e 9489#endif
67867308
FB		 9490 case TARGET_NR_setreuid:
9491 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
9492 break;
9493 case TARGET_NR_setregid:
9494 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
9495 break;
9496 case TARGET_NR_getgroups:
9497 {
9498 int gidsetsize = arg1;
0c866a7e 9499 target_id *target_grouplist;
67867308
FB		 9500 gid_t *grouplist;
9501 int i;
9502
9503 grouplist = alloca(gidsetsize * sizeof(gid_t));
9504 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233
AZ		 9505 if (gidsetsize == 0)
9506 break;
67867308 9507 if (!is_error(ret)) {
03903ffc 9508 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7
FB		 9509 if (!target_grouplist)
9510 goto efault;
a2155fcc 9511 for(i = 0;i < ret; i++)
0c866a7e 9512 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 9513 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 9514 }
9515 }
9516 break;
9517 case TARGET_NR_setgroups:
9518 {
9519 int gidsetsize = arg1;
0c866a7e 9520 target_id *target_grouplist;
f2b79ce9 9521 gid_t *grouplist = NULL;
67867308 9522 int i;
f2b79ce9
DA		 9523 if (gidsetsize) {
9524 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 9525 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9
DA		 9526 if (!target_grouplist) {
9527 ret = -TARGET_EFAULT;
9528 goto fail;
9529 }
9530 for (i = 0; i < gidsetsize; i++) {
9531 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
9532 }
9533 unlock_user(target_grouplist, arg2, 0);
579a97f7 9534 }
67867308
FB		 9535 ret = get_errno(setgroups(gidsetsize, grouplist));
9536 }
9537 break;
9538 case TARGET_NR_fchown:
9539 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
9540 break;
c0d472b1 9541#if defined(TARGET_NR_fchownat)
ccfa72b7 9542 case TARGET_NR_fchownat:
579a97f7
FB		 9543 if (!(p = lock_user_string(arg2)))
9544 goto efault;
c0d472b1
PM		 9545 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
9546 low2highgid(arg4), arg5));
579a97f7 9547 unlock_user(p, arg2, 0);
ccfa72b7
TS		 9548 break;
9549#endif
67867308
FB		 9550#ifdef TARGET_NR_setresuid
9551 case TARGET_NR_setresuid:
fd6f7798
PM		 9552 ret = get_errno(sys_setresuid(low2highuid(arg1),
9553 low2highuid(arg2),
9554 low2highuid(arg3)));
67867308
FB		 9555 break;
9556#endif
9557#ifdef TARGET_NR_getresuid
9558 case TARGET_NR_getresuid:
9559 {
53a5960a 9560 uid_t ruid, euid, suid;
67867308
FB		 9561 ret = get_errno(getresuid(&ruid, &euid, &suid));
9562 if (!is_error(ret)) {
76ca310a
PM		 9563 if (put_user_id(high2lowuid(ruid), arg1)
9564 || put_user_id(high2lowuid(euid), arg2)
9565 || put_user_id(high2lowuid(suid), arg3))
2f619698 9566 goto efault;
67867308
FB		 9567 }
9568 }
9569 break;
9570#endif
9571#ifdef TARGET_NR_getresgid
9572 case TARGET_NR_setresgid:
fd6f7798
PM		 9573 ret = get_errno(sys_setresgid(low2highgid(arg1),
9574 low2highgid(arg2),
9575 low2highgid(arg3)));
67867308
FB		 9576 break;
9577#endif
9578#ifdef TARGET_NR_getresgid
9579 case TARGET_NR_getresgid:
9580 {
53a5960a 9581 gid_t rgid, egid, sgid;
67867308
FB		 9582 ret = get_errno(getresgid(&rgid, &egid, &sgid));
9583 if (!is_error(ret)) {
76ca310a
PM		 9584 if (put_user_id(high2lowgid(rgid), arg1)
9585 || put_user_id(high2lowgid(egid), arg2)
9586 || put_user_id(high2lowgid(sgid), arg3))
2f619698 9587 goto efault;
67867308
FB		 9588 }
9589 }
9590 break;
9591#endif
704eff6c 9592#ifdef TARGET_NR_chown
67867308 9593 case TARGET_NR_chown:
579a97f7
FB		 9594 if (!(p = lock_user_string(arg1)))
9595 goto efault;
53a5960a
PB		 9596 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
9597 unlock_user(p, arg1, 0);
67867308 9598 break;
704eff6c 9599#endif
67867308 9600 case TARGET_NR_setuid:
fd6f7798 9601 ret = get_errno(sys_setuid(low2highuid(arg1)));
67867308
FB		 9602 break;
9603 case TARGET_NR_setgid:
fd6f7798 9604 ret = get_errno(sys_setgid(low2highgid(arg1)));
67867308
FB		 9605 break;
9606 case TARGET_NR_setfsuid:
9607 ret = get_errno(setfsuid(arg1));
9608 break;
9609 case TARGET_NR_setfsgid:
9610 ret = get_errno(setfsgid(arg1));
9611 break;
67867308 9612
a315a145 9613#ifdef TARGET_NR_lchown32
31e31b8a 9614 case TARGET_NR_lchown32:
579a97f7
FB		 9615 if (!(p = lock_user_string(arg1)))
9616 goto efault;
53a5960a
PB		 9617 ret = get_errno(lchown(p, arg2, arg3));
9618 unlock_user(p, arg1, 0);
b03c60f3 9619 break;
a315a145
FB		 9620#endif
9621#ifdef TARGET_NR_getuid32
31e31b8a 9622 case TARGET_NR_getuid32:
b03c60f3
FB		 9623 ret = get_errno(getuid());
9624 break;
a315a145 9625#endif
64b4d28c
AJ		 9626
9627#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
9628 /* Alpha specific */
9629 case TARGET_NR_getxuid:
ba0e276d
RH		 9630 {
9631 uid_t euid;
9632 euid=geteuid();
9633 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
9634 }
64b4d28c
AJ		 9635 ret = get_errno(getuid());
9636 break;
9637#endif
9638#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
9639 /* Alpha specific */
9640 case TARGET_NR_getxgid:
ba0e276d
RH		 9641 {
9642 uid_t egid;
9643 egid=getegid();
9644 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
9645 }
64b4d28c
AJ		 9646 ret = get_errno(getgid());
9647 break;
9648#endif
ba0e276d
RH		 9649#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
9650 /* Alpha specific */
9651 case TARGET_NR_osf_getsysinfo:
9652 ret = -TARGET_EOPNOTSUPP;
9653 switch (arg1) {
9654 case TARGET_GSI_IEEE_FP_CONTROL:
9655 {
9656 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
9657
9658 /* Copied from linux ieee_fpcr_to_swcr. */
9659 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
9660 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
9661 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
9662 | SWCR_TRAP_ENABLE_DZE
9663 | SWCR_TRAP_ENABLE_OVF);
9664 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
9665 | SWCR_TRAP_ENABLE_INE);
9666 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
9667 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
9668
9669 if (put_user_u64 (swcr, arg2))
9670 goto efault;
9671 ret = 0;
9672 }
9673 break;
9674
9675 /* case GSI_IEEE_STATE_AT_SIGNAL:
9676 -- Not implemented in linux kernel.
9677 case GSI_UACPROC:
9678 -- Retrieves current unaligned access state; not much used.
9679 case GSI_PROC_TYPE:
9680 -- Retrieves implver information; surely not used.
9681 case GSI_GET_HWRPB:
9682 -- Grabs a copy of the HWRPB; surely not used.
9683 */
9684 }
9685 break;
9686#endif
9687#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
9688 /* Alpha specific */
9689 case TARGET_NR_osf_setsysinfo:
9690 ret = -TARGET_EOPNOTSUPP;
9691 switch (arg1) {
9692 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d
RH		 9693 {
9694 uint64_t swcr, fpcr, orig_fpcr;
9695
6e06d515 9696 if (get_user_u64 (swcr, arg2)) {
ba0e276d 9697 goto efault;
6e06d515
RH		 9698 }
9699 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d
RH		 9700 fpcr = orig_fpcr & FPCR_DYN_MASK;
9701
9702 /* Copied from linux ieee_swcr_to_fpcr. */
9703 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
9704 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
9705 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
9706 | SWCR_TRAP_ENABLE_DZE
9707 | SWCR_TRAP_ENABLE_OVF)) << 48;
9708 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
9709 | SWCR_TRAP_ENABLE_INE)) << 57;
9710 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
9711 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
9712
6e06d515 9713 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 9714 ret = 0;
6e06d515
RH		 9715 }
9716 break;
9717
9718 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
9719 {
9720 uint64_t exc, fpcr, orig_fpcr;
9721 int si_code;
9722
9723 if (get_user_u64(exc, arg2)) {
9724 goto efault;
9725 }
ba0e276d 9726
6e06d515 9727 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 9728
6e06d515
RH		 9729 /* We only add to the exception status here. */
9730 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
9731
9732 cpu_alpha_store_fpcr(cpu_env, fpcr);
9733 ret = 0;
9734
9735 /* Old exceptions are not signaled. */
9736 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
9737
9738 /* If any exceptions set by this call,
9739 and are unmasked, send a signal. */
9740 si_code = 0;
9741 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
9742 si_code = TARGET_FPE_FLTRES;
9743 }
9744 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
9745 si_code = TARGET_FPE_FLTUND;
9746 }
9747 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
9748 si_code = TARGET_FPE_FLTOVF;
9749 }
9750 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
9751 si_code = TARGET_FPE_FLTDIV;
9752 }
9753 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
9754 si_code = TARGET_FPE_FLTINV;
9755 }
9756 if (si_code != 0) {
9757 target_siginfo_t info;
9758 info.si_signo = SIGFPE;
9759 info.si_errno = 0;
9760 info.si_code = si_code;
9761 info._sifields._sigfault._addr
9762 = ((CPUArchState *)cpu_env)->pc;
9763 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
ba0e276d
RH		 9764 }
9765 }
9766 break;
9767
9768 /* case SSI_NVPAIRS:
9769 -- Used with SSIN_UACPROC to enable unaligned accesses.
9770 case SSI_IEEE_STATE_AT_SIGNAL:
9771 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
9772 -- Not implemented in linux kernel
9773 */
9774 }
9775 break;
9776#endif
9777#ifdef TARGET_NR_osf_sigprocmask
9778 /* Alpha specific. */
9779 case TARGET_NR_osf_sigprocmask:
9780 {
9781 abi_ulong mask;
bc088ba1 9782 int how;
ba0e276d
RH		 9783 sigset_t set, oldset;
9784
9785 switch(arg1) {
9786 case TARGET_SIG_BLOCK:
9787 how = SIG_BLOCK;
9788 break;
9789 case TARGET_SIG_UNBLOCK:
9790 how = SIG_UNBLOCK;
9791 break;
9792 case TARGET_SIG_SETMASK:
9793 how = SIG_SETMASK;
9794 break;
9795 default:
9796 ret = -TARGET_EINVAL;
9797 goto fail;
9798 }
9799 mask = arg2;
9800 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 9801 ret = do_sigprocmask(how, &set, &oldset);
9802 if (!ret) {
9803 host_to_target_old_sigset(&mask, &oldset);
9804 ret = mask;
9805 }
ba0e276d
RH		 9806 }
9807 break;
9808#endif
64b4d28c 9809
a315a145 9810#ifdef TARGET_NR_getgid32
31e31b8a 9811 case TARGET_NR_getgid32:
b03c60f3
FB		 9812 ret = get_errno(getgid());
9813 break;
a315a145
FB		 9814#endif
9815#ifdef TARGET_NR_geteuid32
31e31b8a 9816 case TARGET_NR_geteuid32:
b03c60f3
FB		 9817 ret = get_errno(geteuid());
9818 break;
a315a145
FB		 9819#endif
9820#ifdef TARGET_NR_getegid32
31e31b8a 9821 case TARGET_NR_getegid32:
b03c60f3
FB		 9822 ret = get_errno(getegid());
9823 break;
a315a145
FB		 9824#endif
9825#ifdef TARGET_NR_setreuid32
31e31b8a 9826 case TARGET_NR_setreuid32:
b03c60f3
FB		 9827 ret = get_errno(setreuid(arg1, arg2));
9828 break;
a315a145
FB		 9829#endif
9830#ifdef TARGET_NR_setregid32
31e31b8a 9831 case TARGET_NR_setregid32:
b03c60f3
FB		 9832 ret = get_errno(setregid(arg1, arg2));
9833 break;
a315a145
FB		 9834#endif
9835#ifdef TARGET_NR_getgroups32
31e31b8a 9836 case TARGET_NR_getgroups32:
99c475ab
FB		 9837 {
9838 int gidsetsize = arg1;
53a5960a 9839 uint32_t *target_grouplist;
99c475ab
FB		 9840 gid_t *grouplist;
9841 int i;
9842
9843 grouplist = alloca(gidsetsize * sizeof(gid_t));
9844 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233
AZ		 9845 if (gidsetsize == 0)
9846 break;
99c475ab 9847 if (!is_error(ret)) {
579a97f7
FB		 9848 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
9849 if (!target_grouplist) {
9850 ret = -TARGET_EFAULT;
9851 goto fail;
9852 }
a2155fcc 9853 for(i = 0;i < ret; i++)
53a5960a
PB		 9854 target_grouplist[i] = tswap32(grouplist[i]);
9855 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 9856 }
9857 }
9858 break;
a315a145
FB		 9859#endif
9860#ifdef TARGET_NR_setgroups32
31e31b8a 9861 case TARGET_NR_setgroups32:
99c475ab
FB		 9862 {
9863 int gidsetsize = arg1;
53a5960a 9864 uint32_t *target_grouplist;
99c475ab
FB		 9865 gid_t *grouplist;
9866 int i;
3b46e624 9867
99c475ab 9868 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 9869 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
9870 if (!target_grouplist) {
9871 ret = -TARGET_EFAULT;
9872 goto fail;
9873 }
99c475ab 9874 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 9875 grouplist[i] = tswap32(target_grouplist[i]);
9876 unlock_user(target_grouplist, arg2, 0);
99c475ab
FB		 9877 ret = get_errno(setgroups(gidsetsize, grouplist));
9878 }
9879 break;
a315a145
FB		 9880#endif
9881#ifdef TARGET_NR_fchown32
31e31b8a 9882 case TARGET_NR_fchown32:
b03c60f3
FB		 9883 ret = get_errno(fchown(arg1, arg2, arg3));
9884 break;
a315a145
FB		 9885#endif
9886#ifdef TARGET_NR_setresuid32
31e31b8a 9887 case TARGET_NR_setresuid32:
fd6f7798 9888 ret = get_errno(sys_setresuid(arg1, arg2, arg3));
b03c60f3 9889 break;
a315a145
FB		 9890#endif
9891#ifdef TARGET_NR_getresuid32
31e31b8a 9892 case TARGET_NR_getresuid32:
b03c60f3 9893 {
53a5960a 9894 uid_t ruid, euid, suid;
b03c60f3
FB		 9895 ret = get_errno(getresuid(&ruid, &euid, &suid));
9896 if (!is_error(ret)) {
2f619698
FB		 9897 if (put_user_u32(ruid, arg1)
9898 || put_user_u32(euid, arg2)
9899 || put_user_u32(suid, arg3))
9900 goto efault;
b03c60f3
FB		 9901 }
9902 }
9903 break;
a315a145
FB		 9904#endif
9905#ifdef TARGET_NR_setresgid32
31e31b8a 9906 case TARGET_NR_setresgid32:
fd6f7798 9907 ret = get_errno(sys_setresgid(arg1, arg2, arg3));
b03c60f3 9908 break;
a315a145
FB		 9909#endif
9910#ifdef TARGET_NR_getresgid32
31e31b8a 9911 case TARGET_NR_getresgid32:
b03c60f3 9912 {
53a5960a 9913 gid_t rgid, egid, sgid;
b03c60f3
FB		 9914 ret = get_errno(getresgid(&rgid, &egid, &sgid));
9915 if (!is_error(ret)) {
2f619698
FB		 9916 if (put_user_u32(rgid, arg1)
9917 || put_user_u32(egid, arg2)
9918 || put_user_u32(sgid, arg3))
9919 goto efault;
b03c60f3
FB		 9920 }
9921 }
9922 break;
a315a145
FB		 9923#endif
9924#ifdef TARGET_NR_chown32
31e31b8a 9925 case TARGET_NR_chown32:
579a97f7
FB		 9926 if (!(p = lock_user_string(arg1)))
9927 goto efault;
53a5960a
PB		 9928 ret = get_errno(chown(p, arg2, arg3));
9929 unlock_user(p, arg1, 0);
b03c60f3 9930 break;
a315a145
FB		 9931#endif
9932#ifdef TARGET_NR_setuid32
31e31b8a 9933 case TARGET_NR_setuid32:
fd6f7798 9934 ret = get_errno(sys_setuid(arg1));
b03c60f3 9935 break;
a315a145
FB		 9936#endif
9937#ifdef TARGET_NR_setgid32
31e31b8a 9938 case TARGET_NR_setgid32:
fd6f7798 9939 ret = get_errno(sys_setgid(arg1));
b03c60f3 9940 break;
a315a145
FB		 9941#endif
9942#ifdef TARGET_NR_setfsuid32
31e31b8a 9943 case TARGET_NR_setfsuid32:
b03c60f3
FB		 9944 ret = get_errno(setfsuid(arg1));
9945 break;
a315a145
FB		 9946#endif
9947#ifdef TARGET_NR_setfsgid32
31e31b8a 9948 case TARGET_NR_setfsgid32:
b03c60f3
FB		 9949 ret = get_errno(setfsgid(arg1));
9950 break;
a315a145 9951#endif
67867308 9952
31e31b8a 9953 case TARGET_NR_pivot_root:
b03c60f3 9954 goto unimplemented;
ffa65c3b 9955#ifdef TARGET_NR_mincore
31e31b8a 9956 case TARGET_NR_mincore:
04bb9ace
AJ		 9957 {
9958 void *a;
9959 ret = -TARGET_EFAULT;
9960 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
9961 goto efault;
9962 if (!(p = lock_user_string(arg3)))
9963 goto mincore_fail;
9964 ret = get_errno(mincore(a, arg2, p));
9965 unlock_user(p, arg3, ret);
9966 mincore_fail:
9967 unlock_user(a, arg1, 0);
9968 }
9969 break;
ffa65c3b 9970#endif
408321b6
AJ		 9971#ifdef TARGET_NR_arm_fadvise64_64
9972 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 9973 /* arm_fadvise64_64 looks like fadvise64_64 but
9974 * with different argument order: fd, advice, offset, len
9975 * rather than the usual fd, offset, len, advice.
9976 * Note that offset and len are both 64-bit so appear as
9977 * pairs of 32-bit registers.
9978 */
9979 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
9980 target_offset64(arg5, arg6), arg2);
9981 ret = -host_to_target_errno(ret);
9982 break;
408321b6 9983#endif
badd3cd8
PM		 9984
9985#if TARGET_ABI_BITS == 32
9986
9987#ifdef TARGET_NR_fadvise64_64
9988 case TARGET_NR_fadvise64_64:
9989 /* 6 args: fd, offset (high, low), len (high, low), advice */
9990 if (regpairs_aligned(cpu_env)) {
9991 /* offset is in (3,4), len in (5,6) and advice in 7 */
9992 arg2 = arg3;
9993 arg3 = arg4;
9994 arg4 = arg5;
9995 arg5 = arg6;
9996 arg6 = arg7;
9997 }
9998 ret = -host_to_target_errno(posix_fadvise(arg1,
9999 target_offset64(arg2, arg3),
10000 target_offset64(arg4, arg5),
10001 arg6));
10002 break;
10003#endif
10004
10005#ifdef TARGET_NR_fadvise64
10006 case TARGET_NR_fadvise64:
10007 /* 5 args: fd, offset (high, low), len, advice */
10008 if (regpairs_aligned(cpu_env)) {
10009 /* offset is in (3,4), len in 5 and advice in 6 */
10010 arg2 = arg3;
10011 arg3 = arg4;
10012 arg4 = arg5;
10013 arg5 = arg6;
10014 }
10015 ret = -host_to_target_errno(posix_fadvise(arg1,
10016 target_offset64(arg2, arg3),
10017 arg4, arg5));
10018 break;
10019#endif
10020
10021#else /* not a 32-bit ABI */
e0156a9d 10022#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 10023#ifdef TARGET_NR_fadvise64_64
10024 case TARGET_NR_fadvise64_64:
10025#endif
e72d2cc7
UH		 10026#ifdef TARGET_NR_fadvise64
10027 case TARGET_NR_fadvise64:
10028#endif
10029#ifdef TARGET_S390X
10030 switch (arg4) {
10031 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
10032 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
10033 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10034 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10035 default: break;
10036 }
10037#endif
977d8241
PM		 10038 ret = -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
10039 break;
408321b6 10040#endif
badd3cd8
PM		 10041#endif /* end of 64-bit ABI fadvise handling */
10042
ffa65c3b 10043#ifdef TARGET_NR_madvise
31e31b8a 10044 case TARGET_NR_madvise:
24836689 10045 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 10046 turns private file-backed mappings into anonymous mappings.
24836689
PB		 10047 This will break MADV_DONTNEED.
10048 This is a hint, so ignoring and returning success is ok. */
10049 ret = get_errno(0);
10050 break;
ffa65c3b 10051#endif
992f48a0 10052#if TARGET_ABI_BITS == 32
31e31b8a 10053 case TARGET_NR_fcntl64:
77e4672d 10054 {
b1e341eb 10055 int cmd;
77e4672d 10056 struct flock64 fl;
53a5960a 10057 struct target_flock64 *target_fl;
ce4defa0 10058#ifdef TARGET_ARM
53a5960a 10059 struct target_eabi_flock64 *target_efl;
ce4defa0 10060#endif
77e4672d 10061
5f106811 10062 cmd = target_to_host_fcntl_cmd(arg2);
31b63193
PM		 10063 if (cmd == -TARGET_EINVAL) {
10064 ret = cmd;
10065 break;
10066 }
b1e341eb 10067
60cd49d5 10068 switch(arg2) {
b1e341eb 10069 case TARGET_F_GETLK64:
5813427b
TS		 10070#ifdef TARGET_ARM
10071 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 10072 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
10073 goto efault;
5813427b
TS		 10074 fl.l_type = tswap16(target_efl->l_type);
10075 fl.l_whence = tswap16(target_efl->l_whence);
10076 fl.l_start = tswap64(target_efl->l_start);
10077 fl.l_len = tswap64(target_efl->l_len);
7e22e546 10078 fl.l_pid = tswap32(target_efl->l_pid);
5813427b
TS		 10079 unlock_user_struct(target_efl, arg3, 0);
10080 } else
10081#endif
10082 {
9ee1fa2c
FB		 10083 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
10084 goto efault;
5813427b
TS		 10085 fl.l_type = tswap16(target_fl->l_type);
10086 fl.l_whence = tswap16(target_fl->l_whence);
10087 fl.l_start = tswap64(target_fl->l_start);
10088 fl.l_len = tswap64(target_fl->l_len);
7e22e546 10089 fl.l_pid = tswap32(target_fl->l_pid);
5813427b
TS		 10090 unlock_user_struct(target_fl, arg3, 0);
10091 }
b1e341eb 10092 ret = get_errno(fcntl(arg1, cmd, &fl));
77e4672d 10093 if (ret == 0) {
ce4defa0
PB		 10094#ifdef TARGET_ARM
10095 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 10096 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
10097 goto efault;
ce4defa0
PB		 10098 target_efl->l_type = tswap16(fl.l_type);
10099 target_efl->l_whence = tswap16(fl.l_whence);
10100 target_efl->l_start = tswap64(fl.l_start);
10101 target_efl->l_len = tswap64(fl.l_len);
7e22e546 10102 target_efl->l_pid = tswap32(fl.l_pid);
53a5960a 10103 unlock_user_struct(target_efl, arg3, 1);
ce4defa0
PB		 10104 } else
10105#endif
10106 {
9ee1fa2c
FB		 10107 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
10108 goto efault;
ce4defa0
PB		 10109 target_fl->l_type = tswap16(fl.l_type);
10110 target_fl->l_whence = tswap16(fl.l_whence);
10111 target_fl->l_start = tswap64(fl.l_start);
10112 target_fl->l_len = tswap64(fl.l_len);
7e22e546 10113 target_fl->l_pid = tswap32(fl.l_pid);
53a5960a 10114 unlock_user_struct(target_fl, arg3, 1);
ce4defa0 10115 }
77e4672d
FB		 10116 }
10117 break;
10118
b1e341eb
TS		 10119 case TARGET_F_SETLK64:
10120 case TARGET_F_SETLKW64:
ce4defa0
PB		 10121#ifdef TARGET_ARM
10122 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 10123 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
10124 goto efault;
ce4defa0
PB		 10125 fl.l_type = tswap16(target_efl->l_type);
10126 fl.l_whence = tswap16(target_efl->l_whence);
10127 fl.l_start = tswap64(target_efl->l_start);
10128 fl.l_len = tswap64(target_efl->l_len);
7e22e546 10129 fl.l_pid = tswap32(target_efl->l_pid);
53a5960a 10130 unlock_user_struct(target_efl, arg3, 0);
ce4defa0
PB		 10131 } else
10132#endif
10133 {
9ee1fa2c
FB		 10134 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
10135 goto efault;
ce4defa0
PB		 10136 fl.l_type = tswap16(target_fl->l_type);
10137 fl.l_whence = tswap16(target_fl->l_whence);
10138 fl.l_start = tswap64(target_fl->l_start);
10139 fl.l_len = tswap64(target_fl->l_len);
7e22e546 10140 fl.l_pid = tswap32(target_fl->l_pid);
53a5960a 10141 unlock_user_struct(target_fl, arg3, 0);
ce4defa0 10142 }
b1e341eb 10143 ret = get_errno(fcntl(arg1, cmd, &fl));
77e4672d 10144 break;
60cd49d5 10145 default:
5f106811 10146 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 10147 break;
10148 }
77e4672d
FB		 10149 break;
10150 }
60cd49d5 10151#endif
7d600c80
TS		 10152#ifdef TARGET_NR_cacheflush
10153 case TARGET_NR_cacheflush:
10154 /* self-modifying code is handled automatically, so nothing needed */
10155 ret = 0;
10156 break;
10157#endif
ebc05488 10158#ifdef TARGET_NR_security
31e31b8a
FB		 10159 case TARGET_NR_security:
10160 goto unimplemented;
c573ff67
FB		 10161#endif
10162#ifdef TARGET_NR_getpagesize
10163 case TARGET_NR_getpagesize:
10164 ret = TARGET_PAGE_SIZE;
10165 break;
ebc05488 10166#endif
31e31b8a
FB		 10167 case TARGET_NR_gettid:
10168 ret = get_errno(gettid());
10169 break;
e5febef5 10170#ifdef TARGET_NR_readahead
31e31b8a 10171 case TARGET_NR_readahead:
2054ac9b 10172#if TARGET_ABI_BITS == 32
48e515d4 10173 if (regpairs_aligned(cpu_env)) {
2054ac9b
AJ		 10174 arg2 = arg3;
10175 arg3 = arg4;
10176 arg4 = arg5;
10177 }
2054ac9b
AJ		 10178 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
10179#else
10180 ret = get_errno(readahead(arg1, arg2, arg3));
10181#endif
10182 break;
e5febef5 10183#endif
a790ae38 10184#ifdef CONFIG_ATTR
ebc05488 10185#ifdef TARGET_NR_setxattr
31e31b8a
FB		 10186 case TARGET_NR_listxattr:
10187 case TARGET_NR_llistxattr:
fb5590f7
PM		 10188 {
10189 void *p, *b = 0;
10190 if (arg2) {
10191 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10192 if (!b) {
10193 ret = -TARGET_EFAULT;
10194 break;
10195 }
10196 }
10197 p = lock_user_string(arg1);
10198 if (p) {
10199 if (num == TARGET_NR_listxattr) {
10200 ret = get_errno(listxattr(p, b, arg3));
10201 } else {
10202 ret = get_errno(llistxattr(p, b, arg3));
10203 }
10204 } else {
10205 ret = -TARGET_EFAULT;
10206 }
10207 unlock_user(p, arg1, 0);
10208 unlock_user(b, arg2, arg3);
10209 break;
10210 }
31e31b8a 10211 case TARGET_NR_flistxattr:
fb5590f7
PM		 10212 {
10213 void *b = 0;
10214 if (arg2) {
10215 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10216 if (!b) {
10217 ret = -TARGET_EFAULT;
10218 break;
10219 }
10220 }
10221 ret = get_errno(flistxattr(arg1, b, arg3));
10222 unlock_user(b, arg2, arg3);
6f932f91 10223 break;
fb5590f7 10224 }
a790ae38 10225 case TARGET_NR_setxattr:
30297b55 10226 case TARGET_NR_lsetxattr:
a790ae38 10227 {
e3c33ec6
PM		 10228 void *p, *n, *v = 0;
10229 if (arg3) {
10230 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10231 if (!v) {
10232 ret = -TARGET_EFAULT;
10233 break;
10234 }
10235 }
a790ae38
ACH		 10236 p = lock_user_string(arg1);
10237 n = lock_user_string(arg2);
e3c33ec6 10238 if (p && n) {
30297b55
PM		 10239 if (num == TARGET_NR_setxattr) {
10240 ret = get_errno(setxattr(p, n, v, arg4, arg5));
10241 } else {
10242 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
10243 }
a790ae38
ACH		 10244 } else {
10245 ret = -TARGET_EFAULT;
10246 }
10247 unlock_user(p, arg1, 0);
10248 unlock_user(n, arg2, 0);
10249 unlock_user(v, arg3, 0);
10250 }
10251 break;
30297b55
PM		 10252 case TARGET_NR_fsetxattr:
10253 {
10254 void *n, *v = 0;
10255 if (arg3) {
10256 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10257 if (!v) {
10258 ret = -TARGET_EFAULT;
10259 break;
10260 }
10261 }
10262 n = lock_user_string(arg2);
10263 if (n) {
10264 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
10265 } else {
10266 ret = -TARGET_EFAULT;
10267 }
10268 unlock_user(n, arg2, 0);
10269 unlock_user(v, arg3, 0);
10270 }
10271 break;
a790ae38 10272 case TARGET_NR_getxattr:
30297b55 10273 case TARGET_NR_lgetxattr:
a790ae38 10274 {
e3c33ec6
PM		 10275 void *p, *n, *v = 0;
10276 if (arg3) {
10277 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10278 if (!v) {
10279 ret = -TARGET_EFAULT;
10280 break;
10281 }
10282 }
a790ae38
ACH		 10283 p = lock_user_string(arg1);
10284 n = lock_user_string(arg2);
e3c33ec6 10285 if (p && n) {
30297b55
PM		 10286 if (num == TARGET_NR_getxattr) {
10287 ret = get_errno(getxattr(p, n, v, arg4));
10288 } else {
10289 ret = get_errno(lgetxattr(p, n, v, arg4));
10290 }
a790ae38
ACH		 10291 } else {
10292 ret = -TARGET_EFAULT;
10293 }
10294 unlock_user(p, arg1, 0);
10295 unlock_user(n, arg2, 0);
10296 unlock_user(v, arg3, arg4);
10297 }
10298 break;
30297b55
PM		 10299 case TARGET_NR_fgetxattr:
10300 {
10301 void *n, *v = 0;
10302 if (arg3) {
10303 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10304 if (!v) {
10305 ret = -TARGET_EFAULT;
10306 break;
10307 }
10308 }
10309 n = lock_user_string(arg2);
10310 if (n) {
10311 ret = get_errno(fgetxattr(arg1, n, v, arg4));
10312 } else {
10313 ret = -TARGET_EFAULT;
10314 }
10315 unlock_user(n, arg2, 0);
10316 unlock_user(v, arg3, arg4);
10317 }
10318 break;
a790ae38 10319 case TARGET_NR_removexattr:
30297b55 10320 case TARGET_NR_lremovexattr:
a790ae38
ACH		 10321 {
10322 void *p, *n;
10323 p = lock_user_string(arg1);
10324 n = lock_user_string(arg2);
10325 if (p && n) {
30297b55
PM		 10326 if (num == TARGET_NR_removexattr) {
10327 ret = get_errno(removexattr(p, n));
10328 } else {
10329 ret = get_errno(lremovexattr(p, n));
10330 }
a790ae38
ACH		 10331 } else {
10332 ret = -TARGET_EFAULT;
10333 }
10334 unlock_user(p, arg1, 0);
10335 unlock_user(n, arg2, 0);
10336 }
10337 break;
30297b55
PM		 10338 case TARGET_NR_fremovexattr:
10339 {
10340 void *n;
10341 n = lock_user_string(arg2);
10342 if (n) {
10343 ret = get_errno(fremovexattr(arg1, n));
10344 } else {
10345 ret = -TARGET_EFAULT;
10346 }
10347 unlock_user(n, arg2, 0);
10348 }
10349 break;
ebc05488 10350#endif
a790ae38 10351#endif /* CONFIG_ATTR */
ebc05488 10352#ifdef TARGET_NR_set_thread_area
5cd4393b 10353 case TARGET_NR_set_thread_area:
8d18e893 10354#if defined(TARGET_MIPS)
d279279e 10355 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
6f5b89a0
TS		 10356 ret = 0;
10357 break;
ef96779b
EI		 10358#elif defined(TARGET_CRIS)
10359 if (arg1 & 0xff)
10360 ret = -TARGET_EINVAL;
10361 else {
10362 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
10363 ret = 0;
10364 }
10365 break;
8d18e893
FB		 10366#elif defined(TARGET_I386) && defined(TARGET_ABI32)
10367 ret = do_set_thread_area(cpu_env, arg1);
10368 break;
1ccd9374
PM		 10369#elif defined(TARGET_M68K)
10370 {
0429a971 10371 TaskState *ts = cpu->opaque;
1ccd9374 10372 ts->tp_value = arg1;
95c1eb19 10373 ret = 0;
1ccd9374
PM		 10374 break;
10375 }
6f5b89a0
TS		 10376#else
10377 goto unimplemented_nowarn;
10378#endif
10379#endif
10380#ifdef TARGET_NR_get_thread_area
5cd4393b 10381 case TARGET_NR_get_thread_area:
8d18e893
FB		 10382#if defined(TARGET_I386) && defined(TARGET_ABI32)
10383 ret = do_get_thread_area(cpu_env, arg1);
d312bbe1 10384 break;
1ccd9374
PM		 10385#elif defined(TARGET_M68K)
10386 {
0429a971 10387 TaskState *ts = cpu->opaque;
1ccd9374
PM		 10388 ret = ts->tp_value;
10389 break;
10390 }
8d18e893 10391#else
5cd4393b 10392 goto unimplemented_nowarn;
48dc41eb 10393#endif
8d18e893 10394#endif
48dc41eb
FB		 10395#ifdef TARGET_NR_getdomainname
10396 case TARGET_NR_getdomainname:
10397 goto unimplemented_nowarn;
ebc05488 10398#endif
6f5b89a0 10399
b5906f95
TS		 10400#ifdef TARGET_NR_clock_gettime
10401 case TARGET_NR_clock_gettime:
10402 {
10403 struct timespec ts;
10404 ret = get_errno(clock_gettime(arg1, &ts));
10405 if (!is_error(ret)) {
10406 host_to_target_timespec(arg2, &ts);
10407 }
10408 break;
10409 }
10410#endif
10411#ifdef TARGET_NR_clock_getres
10412 case TARGET_NR_clock_getres:
10413 {
10414 struct timespec ts;
10415 ret = get_errno(clock_getres(arg1, &ts));
10416 if (!is_error(ret)) {
10417 host_to_target_timespec(arg2, &ts);
10418 }
10419 break;
10420 }
10421#endif
63d7651b
PB		 10422#ifdef TARGET_NR_clock_nanosleep
10423 case TARGET_NR_clock_nanosleep:
10424 {
10425 struct timespec ts;
10426 target_to_host_timespec(&ts, arg3);
10427 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
10428 if (arg4)
10429 host_to_target_timespec(arg4, &ts);
8fbe8fdf
TM		 10430
10431#if defined(TARGET_PPC)
10432 /* clock_nanosleep is odd in that it returns positive errno values.
10433 * On PPC, CR0 bit 3 should be set in such a situation. */
10434 if (ret) {
10435 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
10436 }
10437#endif
63d7651b
PB		 10438 break;
10439 }
10440#endif
b5906f95 10441
6f5b89a0
TS		 10442#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
10443 case TARGET_NR_set_tid_address:
579a97f7
FB		 10444 ret = get_errno(set_tid_address((int *)g2h(arg1)));
10445 break;
6f5b89a0
TS		 10446#endif
10447
4cae1d16 10448 case TARGET_NR_tkill:
bef653d9 10449 ret = get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 10450 break;
4cae1d16 10451
71455574 10452 case TARGET_NR_tgkill:
bef653d9 10453 ret = get_errno(safe_tgkill((int)arg1, (int)arg2,
4cb05961 10454 target_to_host_signal(arg3)));
bef653d9 10455 break;
71455574 10456
4f2b1fe8
TS		 10457#ifdef TARGET_NR_set_robust_list
10458 case TARGET_NR_set_robust_list:
e9a970a8
PM		 10459 case TARGET_NR_get_robust_list:
10460 /* The ABI for supporting robust futexes has userspace pass
10461 * the kernel a pointer to a linked list which is updated by
10462 * userspace after the syscall; the list is walked by the kernel
10463 * when the thread exits. Since the linked list in QEMU guest
10464 * memory isn't a valid linked list for the host and we have
10465 * no way to reliably intercept the thread-death event, we can't
10466 * support these. Silently return ENOSYS so that guest userspace
10467 * falls back to a non-robust futex implementation (which should
10468 * be OK except in the corner case of the guest crashing while
10469 * holding a mutex that is shared with another process via
10470 * shared memory).
10471 */
10472 goto unimplemented_nowarn;
4f2b1fe8
TS		 10473#endif
10474
1acae9f2 10475#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 10476 case TARGET_NR_utimensat:
10477 {
ebc996f3
RV		 10478 struct timespec *tsp, ts[2];
10479 if (!arg3) {
10480 tsp = NULL;
10481 } else {
10482 target_to_host_timespec(ts, arg3);
10483 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
10484 tsp = ts;
10485 }
9007f0ef 10486 if (!arg2)
ebc996f3 10487 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 10488 else {
579a97f7 10489 if (!(p = lock_user_string(arg2))) {
0da46a6e 10490 ret = -TARGET_EFAULT;
579a97f7
FB		 10491 goto fail;
10492 }
ebc996f3 10493 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 10494 unlock_user(p, arg2, 0);
9007f0ef
TS		 10495 }
10496 }
10497 break;
10498#endif
bd0c5661
PB		 10499 case TARGET_NR_futex:
10500 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
10501 break;
dbfe4c36 10502#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 10503 case TARGET_NR_inotify_init:
10504 ret = get_errno(sys_inotify_init());
10505 break;
10506#endif
a1606b0b 10507#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 10508#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
10509 case TARGET_NR_inotify_init1:
10510 ret = get_errno(sys_inotify_init1(arg1));
10511 break;
10512#endif
a1606b0b 10513#endif
dbfe4c36 10514#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 10515 case TARGET_NR_inotify_add_watch:
10516 p = lock_user_string(arg2);
10517 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
10518 unlock_user(p, arg2, 0);
10519 break;
10520#endif
dbfe4c36 10521#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763
AJ		 10522 case TARGET_NR_inotify_rm_watch:
10523 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
10524 break;
10525#endif
9007f0ef 10526
8ec9cf89 10527#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 10528 case TARGET_NR_mq_open:
10529 {
b6ce1f6b 10530 struct mq_attr posix_mq_attr, *attrp;
24e1003a
AJ		 10531
10532 p = lock_user_string(arg1 - 1);
b6ce1f6b 10533 if (arg4 != 0) {
24e1003a 10534 copy_from_user_mq_attr (&posix_mq_attr, arg4);
b6ce1f6b
TM		 10535 attrp = &posix_mq_attr;
10536 } else {
10537 attrp = 0;
10538 }
10539 ret = get_errno(mq_open(p, arg2, arg3, attrp));
24e1003a
AJ		 10540 unlock_user (p, arg1, 0);
10541 }
10542 break;
10543
10544 case TARGET_NR_mq_unlink:
10545 p = lock_user_string(arg1 - 1);
10546 ret = get_errno(mq_unlink(p));
10547 unlock_user (p, arg1, 0);
10548 break;
10549
10550 case TARGET_NR_mq_timedsend:
10551 {
10552 struct timespec ts;
10553
10554 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10555 if (arg5 != 0) {
10556 target_to_host_timespec(&ts, arg5);
10557 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
10558 host_to_target_timespec(arg5, &ts);
10559 }
10560 else
10561 ret = get_errno(mq_send(arg1, p, arg3, arg4));
10562 unlock_user (p, arg2, arg3);
10563 }
10564 break;
10565
10566 case TARGET_NR_mq_timedreceive:
10567 {
10568 struct timespec ts;
10569 unsigned int prio;
10570
10571 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10572 if (arg5 != 0) {
10573 target_to_host_timespec(&ts, arg5);
10574 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
10575 host_to_target_timespec(arg5, &ts);
10576 }
10577 else
10578 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
10579 unlock_user (p, arg2, arg3);
10580 if (arg4 != 0)
10581 put_user_u32(prio, arg4);
10582 }
10583 break;
10584
10585 /* Not implemented for now... */
10586/* case TARGET_NR_mq_notify: */
10587/* break; */
10588
10589 case TARGET_NR_mq_getsetattr:
10590 {
10591 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
10592 ret = 0;
10593 if (arg3 != 0) {
10594 ret = mq_getattr(arg1, &posix_mq_attr_out);
10595 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
10596 }
10597 if (arg2 != 0) {
10598 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
10599 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
10600 }
10601
10602 }
10603 break;
10604#endif
10605
3ce34dfb
VS		 10606#ifdef CONFIG_SPLICE
10607#ifdef TARGET_NR_tee
10608 case TARGET_NR_tee:
10609 {
10610 ret = get_errno(tee(arg1,arg2,arg3,arg4));
10611 }
10612 break;
10613#endif
10614#ifdef TARGET_NR_splice
10615 case TARGET_NR_splice:
10616 {
10617 loff_t loff_in, loff_out;
10618 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 10619 if (arg2) {
10620 if (get_user_u64(loff_in, arg2)) {
10621 goto efault;
10622 }
3ce34dfb
VS		 10623 ploff_in = &loff_in;
10624 }
17644b36
AS		 10625 if (arg4) {
10626 if (get_user_u64(loff_out, arg4)) {
10627 goto efault;
10628 }
3ce34dfb
VS		 10629 ploff_out = &loff_out;
10630 }
10631 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 10632 if (arg2) {
10633 if (put_user_u64(loff_in, arg2)) {
10634 goto efault;
10635 }
10636 }
10637 if (arg4) {
10638 if (put_user_u64(loff_out, arg4)) {
10639 goto efault;
10640 }
10641 }
3ce34dfb
VS		 10642 }
10643 break;
10644#endif
10645#ifdef TARGET_NR_vmsplice
10646 case TARGET_NR_vmsplice:
10647 {
f287b2c2
RH		 10648 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
10649 if (vec != NULL) {
10650 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
10651 unlock_iovec(vec, arg2, arg3, 0);
10652 } else {
10653 ret = -host_to_target_errno(errno);
10654 }
3ce34dfb
VS		 10655 }
10656 break;
10657#endif
10658#endif /* CONFIG_SPLICE */
c2882b96
RV		 10659#ifdef CONFIG_EVENTFD
10660#if defined(TARGET_NR_eventfd)
10661 case TARGET_NR_eventfd:
10662 ret = get_errno(eventfd(arg1, 0));
e36800c9 10663 fd_trans_unregister(ret);
c2882b96
RV		 10664 break;
10665#endif
10666#if defined(TARGET_NR_eventfd2)
10667 case TARGET_NR_eventfd2:
5947c697
PJ		 10668 {
10669 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
10670 if (arg2 & TARGET_O_NONBLOCK) {
10671 host_flags |= O_NONBLOCK;
10672 }
10673 if (arg2 & TARGET_O_CLOEXEC) {
10674 host_flags |= O_CLOEXEC;
10675 }
10676 ret = get_errno(eventfd(arg1, host_flags));
e36800c9 10677 fd_trans_unregister(ret);
c2882b96 10678 break;
5947c697 10679 }
c2882b96
RV		 10680#endif
10681#endif /* CONFIG_EVENTFD */
d0927938
UH		 10682#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
10683 case TARGET_NR_fallocate:
20249ae1
AG		 10684#if TARGET_ABI_BITS == 32
10685 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
10686 target_offset64(arg5, arg6)));
10687#else
d0927938 10688 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 10689#endif
d0927938 10690 break;
c727f47d
PM		 10691#endif
10692#if defined(CONFIG_SYNC_FILE_RANGE)
10693#if defined(TARGET_NR_sync_file_range)
10694 case TARGET_NR_sync_file_range:
10695#if TARGET_ABI_BITS == 32
bfcedc57
RV		 10696#if defined(TARGET_MIPS)
10697 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
10698 target_offset64(arg5, arg6), arg7));
10699#else
c727f47d
PM		 10700 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
10701 target_offset64(arg4, arg5), arg6));
bfcedc57 10702#endif /* !TARGET_MIPS */
c727f47d
PM		 10703#else
10704 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
10705#endif
10706 break;
10707#endif
10708#if defined(TARGET_NR_sync_file_range2)
10709 case TARGET_NR_sync_file_range2:
10710 /* This is like sync_file_range but the arguments are reordered */
10711#if TARGET_ABI_BITS == 32
10712 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
10713 target_offset64(arg5, arg6), arg2));
10714#else
10715 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
10716#endif
10717 break;
10718#endif
3b6edd16 10719#endif
e36800c9
LV		 10720#if defined(TARGET_NR_signalfd4)
10721 case TARGET_NR_signalfd4:
10722 ret = do_signalfd4(arg1, arg2, arg4);
10723 break;
10724#endif
10725#if defined(TARGET_NR_signalfd)
10726 case TARGET_NR_signalfd:
10727 ret = do_signalfd4(arg1, arg2, 0);
10728 break;
10729#endif
3b6edd16
PM		 10730#if defined(CONFIG_EPOLL)
10731#if defined(TARGET_NR_epoll_create)
10732 case TARGET_NR_epoll_create:
10733 ret = get_errno(epoll_create(arg1));
10734 break;
10735#endif
10736#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
10737 case TARGET_NR_epoll_create1:
10738 ret = get_errno(epoll_create1(arg1));
10739 break;
10740#endif
10741#if defined(TARGET_NR_epoll_ctl)
10742 case TARGET_NR_epoll_ctl:
10743 {
10744 struct epoll_event ep;
10745 struct epoll_event *epp = 0;
10746 if (arg4) {
10747 struct target_epoll_event *target_ep;
10748 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
10749 goto efault;
10750 }
10751 ep.events = tswap32(target_ep->events);
10752 /* The epoll_data_t union is just opaque data to the kernel,
10753 * so we transfer all 64 bits across and need not worry what
10754 * actual data type it is.
10755 */
10756 ep.data.u64 = tswap64(target_ep->data.u64);
10757 unlock_user_struct(target_ep, arg4, 0);
10758 epp = &ep;
10759 }
10760 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
10761 break;
10762 }
10763#endif
10764
10765#if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
10766#define IMPLEMENT_EPOLL_PWAIT
10767#endif
10768#if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
10769#if defined(TARGET_NR_epoll_wait)
10770 case TARGET_NR_epoll_wait:
10771#endif
10772#if defined(IMPLEMENT_EPOLL_PWAIT)
10773 case TARGET_NR_epoll_pwait:
10774#endif
10775 {
10776 struct target_epoll_event *target_ep;
10777 struct epoll_event *ep;
10778 int epfd = arg1;
10779 int maxevents = arg3;
10780 int timeout = arg4;
10781
10782 target_ep = lock_user(VERIFY_WRITE, arg2,
10783 maxevents * sizeof(struct target_epoll_event), 1);
10784 if (!target_ep) {
10785 goto efault;
10786 }
10787
10788 ep = alloca(maxevents * sizeof(struct epoll_event));
10789
10790 switch (num) {
10791#if defined(IMPLEMENT_EPOLL_PWAIT)
10792 case TARGET_NR_epoll_pwait:
10793 {
10794 target_sigset_t *target_set;
10795 sigset_t _set, *set = &_set;
10796
10797 if (arg5) {
10798 target_set = lock_user(VERIFY_READ, arg5,
10799 sizeof(target_sigset_t), 1);
10800 if (!target_set) {
10801 unlock_user(target_ep, arg2, 0);
10802 goto efault;
10803 }
10804 target_to_host_sigset(set, target_set);
10805 unlock_user(target_set, arg5, 0);
10806 } else {
10807 set = NULL;
10808 }
10809
10810 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
10811 break;
10812 }
10813#endif
10814#if defined(TARGET_NR_epoll_wait)
10815 case TARGET_NR_epoll_wait:
10816 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
10817 break;
10818#endif
10819 default:
10820 ret = -TARGET_ENOSYS;
10821 }
10822 if (!is_error(ret)) {
10823 int i;
10824 for (i = 0; i < ret; i++) {
10825 target_ep[i].events = tswap32(ep[i].events);
10826 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
10827 }
10828 }
10829 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
10830 break;
10831 }
10832#endif
163a05a8
PM		 10833#endif
10834#ifdef TARGET_NR_prlimit64
10835 case TARGET_NR_prlimit64:
10836 {
10837 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
10838 struct target_rlimit64 *target_rnew, *target_rold;
10839 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 10840 int resource = target_to_host_resource(arg2);
163a05a8
PM		 10841 if (arg3) {
10842 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
10843 goto efault;
10844 }
10845 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
10846 rnew.rlim_max = tswap64(target_rnew->rlim_max);
10847 unlock_user_struct(target_rnew, arg3, 0);
10848 rnewp = &rnew;
10849 }
10850
95018018 10851 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 10852 if (!is_error(ret) && arg4) {
10853 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
10854 goto efault;
10855 }
10856 target_rold->rlim_cur = tswap64(rold.rlim_cur);
10857 target_rold->rlim_max = tswap64(rold.rlim_max);
10858 unlock_user_struct(target_rold, arg4, 1);
10859 }
10860 break;
10861 }
3d21d29c
RH		 10862#endif
10863#ifdef TARGET_NR_gethostname
10864 case TARGET_NR_gethostname:
10865 {
10866 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
10867 if (name) {
10868 ret = get_errno(gethostname(name, arg2));
10869 unlock_user(name, arg1, arg2);
10870 } else {
10871 ret = -TARGET_EFAULT;
10872 }
10873 break;
10874 }
89aaf1a6
RV		 10875#endif
10876#ifdef TARGET_NR_atomic_cmpxchg_32
10877 case TARGET_NR_atomic_cmpxchg_32:
10878 {
10879 /* should use start_exclusive from main.c */
10880 abi_ulong mem_value;
10881 if (get_user_u32(mem_value, arg6)) {
10882 target_siginfo_t info;
10883 info.si_signo = SIGSEGV;
10884 info.si_errno = 0;
10885 info.si_code = TARGET_SEGV_MAPERR;
10886 info._sifields._sigfault._addr = arg6;
10887 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
10888 ret = 0xdeadbeef;
10889
10890 }
10891 if (mem_value == arg2)
10892 put_user_u32(arg1, arg6);
10893 ret = mem_value;
10894 break;
10895 }
10896#endif
10897#ifdef TARGET_NR_atomic_barrier
10898 case TARGET_NR_atomic_barrier:
10899 {
10900 /* Like the kernel implementation and the qemu arm barrier, no-op this? */
3b899ea7 10901 ret = 0;
89aaf1a6
RV		 10902 break;
10903 }
d0927938 10904#endif
f4f1e10a
ECL		 10905
10906#ifdef TARGET_NR_timer_create
10907 case TARGET_NR_timer_create:
10908 {
10909 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
10910
10911 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 10912
10913 int clkid = arg1;
10914 int timer_index = next_free_host_timer();
10915
10916 if (timer_index < 0) {
10917 ret = -TARGET_EAGAIN;
10918 } else {
10919 timer_t *phtimer = g_posix_timers + timer_index;
10920
10921 if (arg2) {
f4f1e10a 10922 phost_sevp = &host_sevp;
c065976f
PM		 10923 ret = target_to_host_sigevent(phost_sevp, arg2);
10924 if (ret != 0) {
10925 break;
10926 }
f4f1e10a
ECL		 10927 }
10928
10929 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
10930 if (ret) {
10931 phtimer = NULL;
10932 } else {
aecc8861 10933 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
f4f1e10a
ECL		 10934 goto efault;
10935 }
f4f1e10a
ECL		 10936 }
10937 }
10938 break;
10939 }
10940#endif
10941
10942#ifdef TARGET_NR_timer_settime
10943 case TARGET_NR_timer_settime:
10944 {
10945 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
10946 * struct itimerspec * old_value */
aecc8861 10947 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 10948
aecc8861
AG		 10949 if (timerid < 0) {
10950 ret = timerid;
10951 } else if (arg3 == 0) {
f4f1e10a
ECL		 10952 ret = -TARGET_EINVAL;
10953 } else {
e52a99f7 10954 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 10955 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
10956
10957 target_to_host_itimerspec(&hspec_new, arg3);
10958 ret = get_errno(
10959 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
10960 host_to_target_itimerspec(arg2, &hspec_old);
10961 }
10962 break;
10963 }
10964#endif
10965
10966#ifdef TARGET_NR_timer_gettime
10967 case TARGET_NR_timer_gettime:
10968 {
10969 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 10970 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 10971
aecc8861
AG		 10972 if (timerid < 0) {
10973 ret = timerid;
10974 } else if (!arg2) {
10975 ret = -TARGET_EFAULT;
f4f1e10a 10976 } else {
e52a99f7 10977 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 10978 struct itimerspec hspec;
10979 ret = get_errno(timer_gettime(htimer, &hspec));
10980
10981 if (host_to_target_itimerspec(arg2, &hspec)) {
10982 ret = -TARGET_EFAULT;
10983 }
10984 }
10985 break;
10986 }
10987#endif
10988
10989#ifdef TARGET_NR_timer_getoverrun
10990 case TARGET_NR_timer_getoverrun:
10991 {
10992 /* args: timer_t timerid */
aecc8861 10993 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 10994
aecc8861
AG		 10995 if (timerid < 0) {
10996 ret = timerid;
f4f1e10a 10997 } else {
e52a99f7 10998 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 10999 ret = get_errno(timer_getoverrun(htimer));
11000 }
e36800c9 11001 fd_trans_unregister(ret);
f4f1e10a
ECL		 11002 break;
11003 }
11004#endif
11005
11006#ifdef TARGET_NR_timer_delete
11007 case TARGET_NR_timer_delete:
11008 {
11009 /* args: timer_t timerid */
aecc8861 11010 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11011
aecc8861
AG		 11012 if (timerid < 0) {
11013 ret = timerid;
f4f1e10a 11014 } else {
e52a99f7 11015 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 11016 ret = get_errno(timer_delete(htimer));
e52a99f7 11017 g_posix_timers[timerid] = 0;
f4f1e10a
ECL		 11018 }
11019 break;
11020 }
11021#endif
11022
51834341
RV		 11023#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11024 case TARGET_NR_timerfd_create:
11025 ret = get_errno(timerfd_create(arg1,
11026 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
11027 break;
11028#endif
11029
11030#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11031 case TARGET_NR_timerfd_gettime:
11032 {
11033 struct itimerspec its_curr;
11034
11035 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11036
11037 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
11038 goto efault;
11039 }
11040 }
11041 break;
11042#endif
11043
11044#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11045 case TARGET_NR_timerfd_settime:
11046 {
11047 struct itimerspec its_new, its_old, *p_new;
11048
11049 if (arg3) {
11050 if (target_to_host_itimerspec(&its_new, arg3)) {
11051 goto efault;
11052 }
11053 p_new = &its_new;
11054 } else {
11055 p_new = NULL;
11056 }
11057
11058 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11059
11060 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
11061 goto efault;
11062 }
11063 }
11064 break;
11065#endif
11066
ab31cda3
PB		 11067#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11068 case TARGET_NR_ioprio_get:
11069 ret = get_errno(ioprio_get(arg1, arg2));
11070 break;
11071#endif
11072
11073#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11074 case TARGET_NR_ioprio_set:
11075 ret = get_errno(ioprio_set(arg1, arg2, arg3));
11076 break;
11077#endif
11078
9af5c906
RV		 11079#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11080 case TARGET_NR_setns:
11081 ret = get_errno(setns(arg1, arg2));
11082 break;
11083#endif
11084#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11085 case TARGET_NR_unshare:
11086 ret = get_errno(unshare(arg1));
11087 break;
11088#endif
11089
31e31b8a
FB		 11090 default:
11091 unimplemented:
5cd4393b 11092 gemu_log("qemu: Unsupported syscall: %d\n", num);
4f2b1fe8 11093#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
5cd4393b 11094 unimplemented_nowarn:
80a9d035 11095#endif
0da46a6e 11096 ret = -TARGET_ENOSYS;
31e31b8a
FB		 11097 break;
11098 }
579a97f7 11099fail:
c573ff67 11100#ifdef DEBUG
0bf9e31a 11101 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
c573ff67 11102#endif
b92c47c1
TS		 11103 if(do_strace)
11104 print_syscall_ret(num, ret);
31e31b8a 11105 return ret;
579a97f7
FB		 11106efault:
11107 ret = -TARGET_EFAULT;
11108 goto fail;
31e31b8a 11109}
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