1 /* $Id: sys_sparc32.c,v 1.184 2002/02/09 19:49:31 davem Exp $
2 * sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
4 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
7 * These routines maintain argument size conversion between 32bit and 64bit
11 #include <linux/kernel.h>
12 #include <linux/sched.h>
13 #include <linux/capability.h>
16 #include <linux/file.h>
17 #include <linux/signal.h>
18 #include <linux/resource.h>
19 #include <linux/times.h>
20 #include <linux/utsname.h>
21 #include <linux/smp.h>
22 #include <linux/smp_lock.h>
23 #include <linux/sem.h>
24 #include <linux/msg.h>
25 #include <linux/shm.h>
26 #include <linux/slab.h>
27 #include <linux/uio.h>
28 #include <linux/nfs_fs.h>
29 #include <linux/quota.h>
30 #include <linux/module.h>
31 #include <linux/sunrpc/svc.h>
32 #include <linux/nfsd/nfsd.h>
33 #include <linux/nfsd/cache.h>
34 #include <linux/nfsd/xdr.h>
35 #include <linux/nfsd/syscall.h>
36 #include <linux/poll.h>
37 #include <linux/personality.h>
38 #include <linux/stat.h>
39 #include <linux/filter.h>
40 #include <linux/highmem.h>
41 #include <linux/highuid.h>
42 #include <linux/mman.h>
43 #include <linux/ipv6.h>
45 #include <linux/icmpv6.h>
46 #include <linux/syscalls.h>
47 #include <linux/sysctl.h>
48 #include <linux/binfmts.h>
49 #include <linux/dnotify.h>
50 #include <linux/security.h>
51 #include <linux/compat.h>
52 #include <linux/vfs.h>
53 #include <linux/netfilter_ipv4/ip_tables.h>
54 #include <linux/ptrace.h>
55 #include <linux/highuid.h>
57 #include <asm/types.h>
59 #include <asm/uaccess.h>
60 #include <asm/fpumacro.h>
61 #include <asm/semaphore.h>
62 #include <asm/mmu_context.h>
63 #include <asm/a.out.h>
65 asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
67 return sys_chown(filename, low2highuid(user), low2highgid(group));
70 asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
72 return sys_lchown(filename, low2highuid(user), low2highgid(group));
75 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
77 return sys_fchown(fd, low2highuid(user), low2highgid(group));
80 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
82 return sys_setregid(low2highgid(rgid), low2highgid(egid));
85 asmlinkage long sys32_setgid16(u16 gid)
87 return sys_setgid((gid_t)gid);
90 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
92 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
95 asmlinkage long sys32_setuid16(u16 uid)
97 return sys_setuid((uid_t)uid);
100 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
102 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
106 asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
110 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
111 !(retval = put_user(high2lowuid(current->euid), euid)))
112 retval = put_user(high2lowuid(current->suid), suid);
117 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
119 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
123 asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
127 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
128 !(retval = put_user(high2lowgid(current->egid), egid)))
129 retval = put_user(high2lowgid(current->sgid), sgid);
134 asmlinkage long sys32_setfsuid16(u16 uid)
136 return sys_setfsuid((uid_t)uid);
139 asmlinkage long sys32_setfsgid16(u16 gid)
141 return sys_setfsgid((gid_t)gid);
144 static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
149 for (i = 0; i < group_info->ngroups; i++) {
150 group = (u16)GROUP_AT(group_info, i);
151 if (put_user(group, grouplist+i))
158 static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
163 for (i = 0; i < group_info->ngroups; i++) {
164 if (get_user(group, grouplist+i))
166 GROUP_AT(group_info, i) = (gid_t)group;
172 asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
179 get_group_info(current->group_info);
180 i = current->group_info->ngroups;
182 if (i > gidsetsize) {
186 if (groups16_to_user(grouplist, current->group_info)) {
192 put_group_info(current->group_info);
196 asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
198 struct group_info *group_info;
201 if (!capable(CAP_SETGID))
203 if ((unsigned)gidsetsize > NGROUPS_MAX)
206 group_info = groups_alloc(gidsetsize);
209 retval = groups16_from_user(group_info, grouplist);
211 put_group_info(group_info);
215 retval = set_current_groups(group_info);
216 put_group_info(group_info);
221 asmlinkage long sys32_getuid16(void)
223 return high2lowuid(current->uid);
226 asmlinkage long sys32_geteuid16(void)
228 return high2lowuid(current->euid);
231 asmlinkage long sys32_getgid16(void)
233 return high2lowgid(current->gid);
236 asmlinkage long sys32_getegid16(void)
238 return high2lowgid(current->egid);
241 /* 32-bit timeval and related flotsam. */
243 static long get_tv32(struct timeval *o, struct compat_timeval __user *i)
245 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
246 (__get_user(o->tv_sec, &i->tv_sec) |
247 __get_user(o->tv_usec, &i->tv_usec)));
250 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
252 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
253 (__put_user(i->tv_sec, &o->tv_sec) |
254 __put_user(i->tv_usec, &o->tv_usec)));
257 #ifdef CONFIG_SYSVIPC
258 asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
262 version = call >> 16; /* hack for backward compatibility */
268 /* sign extend semid */
269 return compat_sys_semtimedop((int)first,
270 compat_ptr(ptr), second,
272 /* else fall through for normal semop() */
274 /* struct sembuf is the same on 32 and 64bit :)) */
275 /* sign extend semid */
276 return sys_semtimedop((int)first, compat_ptr(ptr), second,
279 /* sign extend key, nsems */
280 return sys_semget((int)first, (int)second, third);
282 /* sign extend semid, semnum */
283 return compat_sys_semctl((int)first, (int)second, third,
287 /* sign extend msqid */
288 return compat_sys_msgsnd((int)first, (int)second, third,
291 /* sign extend msqid, msgtyp */
292 return compat_sys_msgrcv((int)first, second, (int)fifth,
293 third, version, compat_ptr(ptr));
295 /* sign extend key */
296 return sys_msgget((int)first, second);
298 /* sign extend msqid */
299 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
302 /* sign extend shmid */
303 return compat_sys_shmat((int)first, second, third, version,
306 return sys_shmdt(compat_ptr(ptr));
308 /* sign extend key_t */
309 return sys_shmget((int)first, second, third);
311 /* sign extend shmid */
312 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
322 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
327 return sys_truncate(path, (high << 32) | low);
330 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
335 return sys_ftruncate(fd, (high << 32) | low);
338 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
343 if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
344 !old_valid_dev(stat->rdev))
348 if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
351 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
352 err |= put_user(stat->ino, &statbuf->st_ino);
353 err |= put_user(stat->mode, &statbuf->st_mode);
354 err |= put_user(stat->nlink, &statbuf->st_nlink);
355 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
356 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
357 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
358 err |= put_user(stat->size, &statbuf->st_size);
359 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
360 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
361 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
362 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
363 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
364 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
365 err |= put_user(stat->blksize, &statbuf->st_blksize);
366 err |= put_user(stat->blocks, &statbuf->st_blocks);
367 err |= put_user(0, &statbuf->__unused4[0]);
368 err |= put_user(0, &statbuf->__unused4[1]);
373 int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf)
377 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
378 err |= put_user(stat->ino, &statbuf->st_ino);
379 err |= put_user(stat->mode, &statbuf->st_mode);
380 err |= put_user(stat->nlink, &statbuf->st_nlink);
381 err |= put_user(stat->uid, &statbuf->st_uid);
382 err |= put_user(stat->gid, &statbuf->st_gid);
383 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
384 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
385 err |= put_user(stat->size, &statbuf->st_size);
386 err |= put_user(stat->blksize, &statbuf->st_blksize);
387 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
388 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
389 err |= put_user(stat->blocks, &statbuf->st_blocks);
390 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
391 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
392 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
393 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
394 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
395 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
396 err |= put_user(0, &statbuf->__unused4);
397 err |= put_user(0, &statbuf->__unused5);
402 asmlinkage long compat_sys_stat64(char __user * filename,
403 struct compat_stat64 __user *statbuf)
406 int error = vfs_stat(filename, &stat);
409 error = cp_compat_stat64(&stat, statbuf);
413 asmlinkage long compat_sys_lstat64(char __user * filename,
414 struct compat_stat64 __user *statbuf)
417 int error = vfs_lstat(filename, &stat);
420 error = cp_compat_stat64(&stat, statbuf);
424 asmlinkage long compat_sys_fstat64(unsigned int fd,
425 struct compat_stat64 __user * statbuf)
428 int error = vfs_fstat(fd, &stat);
431 error = cp_compat_stat64(&stat, statbuf);
435 asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
436 struct compat_stat64 __user * statbuf, int flag)
441 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
444 if (flag & AT_SYMLINK_NOFOLLOW)
445 error = vfs_lstat_fd(dfd, filename, &stat);
447 error = vfs_stat_fd(dfd, filename, &stat);
450 error = cp_compat_stat64(&stat, statbuf);
456 asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
458 return sys_sysfs(option, arg1, arg2);
470 unsigned short procs;
475 char _f[20-2*sizeof(int)-sizeof(int)];
478 asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
483 mm_segment_t old_fs = get_fs ();
486 ret = sys_sysinfo((struct sysinfo __user *) &s);
488 /* Check to see if any memory value is too large for 32-bit and
489 * scale down if needed.
491 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
492 while (s.mem_unit < PAGE_SIZE) {
496 s.totalram >>= bitcount;
497 s.freeram >>= bitcount;
498 s.sharedram >>= bitcount;
499 s.bufferram >>= bitcount;
500 s.totalswap >>= bitcount;
501 s.freeswap >>= bitcount;
502 s.totalhigh >>= bitcount;
503 s.freehigh >>= bitcount;
506 err = put_user (s.uptime, &info->uptime);
507 err |= __put_user (s.loads[0], &info->loads[0]);
508 err |= __put_user (s.loads[1], &info->loads[1]);
509 err |= __put_user (s.loads[2], &info->loads[2]);
510 err |= __put_user (s.totalram, &info->totalram);
511 err |= __put_user (s.freeram, &info->freeram);
512 err |= __put_user (s.sharedram, &info->sharedram);
513 err |= __put_user (s.bufferram, &info->bufferram);
514 err |= __put_user (s.totalswap, &info->totalswap);
515 err |= __put_user (s.freeswap, &info->freeswap);
516 err |= __put_user (s.procs, &info->procs);
517 err |= __put_user (s.totalhigh, &info->totalhigh);
518 err |= __put_user (s.freehigh, &info->freehigh);
519 err |= __put_user (s.mem_unit, &info->mem_unit);
525 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
529 mm_segment_t old_fs = get_fs ();
532 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
534 if (put_compat_timespec(&t, interval))
539 asmlinkage long compat_sys_rt_sigprocmask(int how,
540 compat_sigset_t __user *set,
541 compat_sigset_t __user *oset,
542 compat_size_t sigsetsize)
547 mm_segment_t old_fs = get_fs();
550 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
552 switch (_NSIG_WORDS) {
553 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
554 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
555 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
556 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
560 ret = sys_rt_sigprocmask(how,
561 set ? (sigset_t __user *) &s : NULL,
562 oset ? (sigset_t __user *) &s : NULL,
567 switch (_NSIG_WORDS) {
568 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
569 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
570 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
571 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
573 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
579 asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
580 compat_size_t sigsetsize)
585 mm_segment_t old_fs = get_fs();
588 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
591 switch (_NSIG_WORDS) {
592 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
593 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
594 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
595 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
597 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
603 asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
604 struct compat_siginfo __user *uinfo)
608 mm_segment_t old_fs = get_fs();
610 if (copy_siginfo_from_user32(&info, uinfo))
614 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
619 asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
620 struct old_sigaction32 __user *oact)
622 struct k_sigaction new_ka, old_ka;
626 set_thread_flag(TIF_NEWSIGNALS);
631 compat_old_sigset_t mask;
632 u32 u_handler, u_restorer;
634 ret = get_user(u_handler, &act->sa_handler);
635 new_ka.sa.sa_handler = compat_ptr(u_handler);
636 ret |= __get_user(u_restorer, &act->sa_restorer);
637 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
638 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
639 ret |= __get_user(mask, &act->sa_mask);
642 new_ka.ka_restorer = NULL;
643 siginitset(&new_ka.sa.sa_mask, mask);
646 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
649 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
650 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
651 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
652 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
658 asmlinkage long compat_sys_rt_sigaction(int sig,
659 struct sigaction32 __user *act,
660 struct sigaction32 __user *oact,
661 void __user *restorer,
662 compat_size_t sigsetsize)
664 struct k_sigaction new_ka, old_ka;
666 compat_sigset_t set32;
668 /* XXX: Don't preclude handling different sized sigset_t's. */
669 if (sigsetsize != sizeof(compat_sigset_t))
672 /* All tasks which use RT signals (effectively) use
675 set_thread_flag(TIF_NEWSIGNALS);
678 u32 u_handler, u_restorer;
680 new_ka.ka_restorer = restorer;
681 ret = get_user(u_handler, &act->sa_handler);
682 new_ka.sa.sa_handler = compat_ptr(u_handler);
683 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
684 switch (_NSIG_WORDS) {
685 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
686 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
687 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
688 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
690 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
691 ret |= __get_user(u_restorer, &act->sa_restorer);
692 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
697 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
700 switch (_NSIG_WORDS) {
701 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
702 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
703 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
704 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
706 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
707 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
708 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
709 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
718 * sparc32_execve() executes a new program after the asm stub has set
719 * things up for us. This should basically do what I want it to.
721 asmlinkage long sparc32_execve(struct pt_regs *regs)
726 /* User register window flush is done by entry.S */
728 /* Check for indirect call. */
729 if ((u32)regs->u_regs[UREG_G1] == 0)
732 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
733 error = PTR_ERR(filename);
734 if (IS_ERR(filename))
737 error = compat_do_execve(filename,
738 compat_ptr(regs->u_regs[base + UREG_I1]),
739 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
745 current_thread_info()->xfsr[0] = 0;
746 current_thread_info()->fpsaved[0] = 0;
747 regs->tstate &= ~TSTATE_PEF;
749 current->ptrace &= ~PT_DTRACE;
750 task_unlock(current);
756 #ifdef CONFIG_MODULES
758 asmlinkage long sys32_init_module(void __user *umod, u32 len,
759 const char __user *uargs)
761 return sys_init_module(umod, len, uargs);
764 asmlinkage long sys32_delete_module(const char __user *name_user,
767 return sys_delete_module(name_user, flags);
770 #else /* CONFIG_MODULES */
772 asmlinkage long sys32_init_module(const char __user *name_user,
773 struct module __user *mod_user)
778 asmlinkage long sys32_delete_module(const char __user *name_user)
783 #endif /* CONFIG_MODULES */
785 /* Translations due to time_t size differences. Which affects all
786 sorts of things, like timeval and itimerval. */
788 extern struct timezone sys_tz;
790 asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
791 struct timezone __user *tz)
795 do_gettimeofday(&ktv);
796 if (put_tv32(tv, &ktv))
800 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
806 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
810 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
812 if (__get_user(o->tv_sec, &i->tv_sec))
814 if (__get_user(usec, &i->tv_usec))
816 o->tv_nsec = usec * 1000;
820 asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
821 struct timezone __user *tz)
827 if (get_ts32(&kts, tv))
831 if (copy_from_user(&ktz, tz, sizeof(ktz)))
835 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
838 asmlinkage long sys32_utimes(char __user *filename,
839 struct compat_timeval __user *tvs)
841 struct timeval ktvs[2];
844 if (get_tv32(&ktvs[0], tvs) ||
845 get_tv32(&ktvs[1], 1+tvs))
849 return do_utimes(AT_FDCWD, filename, (tvs ? &ktvs[0] : NULL));
852 /* These are here just in case some old sparc32 binary calls it. */
853 asmlinkage long sys32_pause(void)
855 current->state = TASK_INTERRUPTIBLE;
857 return -ERESTARTNOHAND;
860 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
866 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
869 asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
875 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
878 asmlinkage long compat_sys_readahead(int fd,
883 return sys_readahead(fd, (offhi << 32) | offlo, count);
886 long compat_sys_fadvise64(int fd,
889 compat_size_t len, int advice)
891 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
894 long compat_sys_fadvise64_64(int fd,
895 unsigned long offhi, unsigned long offlo,
896 unsigned long lenhi, unsigned long lenlo,
899 return sys_fadvise64_64(fd,
900 (offhi << 32) | offlo,
901 (lenhi << 32) | lenlo,
905 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
906 compat_off_t __user *offset,
909 mm_segment_t old_fs = get_fs();
913 if (offset && get_user(of, offset))
917 ret = sys_sendfile(out_fd, in_fd,
918 offset ? (off_t __user *) &of : NULL,
922 if (offset && put_user(of, offset))
928 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
929 compat_loff_t __user *offset,
932 mm_segment_t old_fs = get_fs();
936 if (offset && get_user(lof, offset))
940 ret = sys_sendfile64(out_fd, in_fd,
941 offset ? (loff_t __user *) &lof : NULL,
945 if (offset && put_user(lof, offset))
951 /* This is just a version for 32-bit applications which does
952 * not force O_LARGEFILE on.
955 asmlinkage long sparc32_open(const char __user *filename,
958 return do_sys_open(AT_FDCWD, filename, flags, mode);
961 extern unsigned long do_mremap(unsigned long addr,
962 unsigned long old_len, unsigned long new_len,
963 unsigned long flags, unsigned long new_addr);
965 asmlinkage unsigned long sys32_mremap(unsigned long addr,
966 unsigned long old_len, unsigned long new_len,
967 unsigned long flags, u32 __new_addr)
969 struct vm_area_struct *vma;
970 unsigned long ret = -EINVAL;
971 unsigned long new_addr = __new_addr;
973 if (old_len > STACK_TOP32 || new_len > STACK_TOP32)
975 if (addr > STACK_TOP32 - old_len)
977 down_write(¤t->mm->mmap_sem);
978 if (flags & MREMAP_FIXED) {
979 if (new_addr > STACK_TOP32 - new_len)
981 } else if (addr > STACK_TOP32 - new_len) {
982 unsigned long map_flags = 0;
983 struct file *file = NULL;
986 if (!(flags & MREMAP_MAYMOVE))
989 vma = find_vma(current->mm, addr);
991 if (vma->vm_flags & VM_SHARED)
992 map_flags |= MAP_SHARED;
996 /* MREMAP_FIXED checked above. */
997 new_addr = get_unmapped_area(file, addr, new_len,
998 vma ? vma->vm_pgoff : 0,
1001 if (new_addr & ~PAGE_MASK)
1003 flags |= MREMAP_FIXED;
1005 ret = do_mremap(addr, old_len, new_len, flags, new_addr);
1007 up_write(¤t->mm->mmap_sem);
1012 struct __sysctl_args32 {
1022 asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
1024 #ifndef CONFIG_SYSCTL_SYSCALL
1027 struct __sysctl_args32 tmp;
1029 size_t oldlen, __user *oldlenp = NULL;
1030 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
1032 if (copy_from_user(&tmp, args, sizeof(tmp)))
1035 if (tmp.oldval && tmp.oldlenp) {
1036 /* Duh, this is ugly and might not work if sysctl_args
1037 is in read-only memory, but do_sysctl does indirectly
1038 a lot of uaccess in both directions and we'd have to
1039 basically copy the whole sysctl.c here, and
1040 glibc's __sysctl uses rw memory for the structure
1042 if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
1043 put_user(oldlen, (size_t __user *)addr))
1045 oldlenp = (size_t __user *)addr;
1049 error = do_sysctl((int __user *)(unsigned long) tmp.name,
1051 (void __user *)(unsigned long) tmp.oldval,
1053 (void __user *)(unsigned long) tmp.newval,
1058 if (get_user(oldlen, (size_t __user *)addr) ||
1059 put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
1062 if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
1069 long sys32_lookup_dcookie(unsigned long cookie_high,
1070 unsigned long cookie_low,
1071 char __user *buf, size_t len)
1073 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
1077 long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
1079 return sys_sync_file_range(fd,
1080 (off_high << 32) | off_low,
1081 (nb_high << 32) | nb_low,