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/config.h>
12 #include <linux/kernel.h>
13 #include <linux/sched.h>
14 #include <linux/capability.h>
17 #include <linux/file.h>
18 #include <linux/signal.h>
19 #include <linux/resource.h>
20 #include <linux/times.h>
21 #include <linux/utsname.h>
22 #include <linux/timex.h>
23 #include <linux/smp.h>
24 #include <linux/smp_lock.h>
25 #include <linux/sem.h>
26 #include <linux/msg.h>
27 #include <linux/shm.h>
28 #include <linux/slab.h>
29 #include <linux/uio.h>
30 #include <linux/nfs_fs.h>
31 #include <linux/quota.h>
32 #include <linux/module.h>
33 #include <linux/sunrpc/svc.h>
34 #include <linux/nfsd/nfsd.h>
35 #include <linux/nfsd/cache.h>
36 #include <linux/nfsd/xdr.h>
37 #include <linux/nfsd/syscall.h>
38 #include <linux/poll.h>
39 #include <linux/personality.h>
40 #include <linux/stat.h>
41 #include <linux/filter.h>
42 #include <linux/highmem.h>
43 #include <linux/highuid.h>
44 #include <linux/mman.h>
45 #include <linux/ipv6.h>
47 #include <linux/icmpv6.h>
48 #include <linux/syscalls.h>
49 #include <linux/sysctl.h>
50 #include <linux/binfmts.h>
51 #include <linux/dnotify.h>
52 #include <linux/security.h>
53 #include <linux/compat.h>
54 #include <linux/vfs.h>
55 #include <linux/netfilter_ipv4/ip_tables.h>
56 #include <linux/ptrace.h>
57 #include <linux/highuid.h>
59 #include <asm/types.h>
61 #include <asm/uaccess.h>
62 #include <asm/fpumacro.h>
63 #include <asm/semaphore.h>
64 #include <asm/mmu_context.h>
65 #include <asm/a.out.h>
67 asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
69 return sys_chown(filename, low2highuid(user), low2highgid(group));
72 asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
74 return sys_lchown(filename, low2highuid(user), low2highgid(group));
77 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
79 return sys_fchown(fd, low2highuid(user), low2highgid(group));
82 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
84 return sys_setregid(low2highgid(rgid), low2highgid(egid));
87 asmlinkage long sys32_setgid16(u16 gid)
89 return sys_setgid((gid_t)gid);
92 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
94 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
97 asmlinkage long sys32_setuid16(u16 uid)
99 return sys_setuid((uid_t)uid);
102 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
104 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
108 asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
112 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
113 !(retval = put_user(high2lowuid(current->euid), euid)))
114 retval = put_user(high2lowuid(current->suid), suid);
119 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
121 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
125 asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
129 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
130 !(retval = put_user(high2lowgid(current->egid), egid)))
131 retval = put_user(high2lowgid(current->sgid), sgid);
136 asmlinkage long sys32_setfsuid16(u16 uid)
138 return sys_setfsuid((uid_t)uid);
141 asmlinkage long sys32_setfsgid16(u16 gid)
143 return sys_setfsgid((gid_t)gid);
146 static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
151 for (i = 0; i < group_info->ngroups; i++) {
152 group = (u16)GROUP_AT(group_info, i);
153 if (put_user(group, grouplist+i))
160 static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
165 for (i = 0; i < group_info->ngroups; i++) {
166 if (get_user(group, grouplist+i))
168 GROUP_AT(group_info, i) = (gid_t)group;
174 asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
181 get_group_info(current->group_info);
182 i = current->group_info->ngroups;
184 if (i > gidsetsize) {
188 if (groups16_to_user(grouplist, current->group_info)) {
194 put_group_info(current->group_info);
198 asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
200 struct group_info *group_info;
203 if (!capable(CAP_SETGID))
205 if ((unsigned)gidsetsize > NGROUPS_MAX)
208 group_info = groups_alloc(gidsetsize);
211 retval = groups16_from_user(group_info, grouplist);
213 put_group_info(group_info);
217 retval = set_current_groups(group_info);
218 put_group_info(group_info);
223 asmlinkage long sys32_getuid16(void)
225 return high2lowuid(current->uid);
228 asmlinkage long sys32_geteuid16(void)
230 return high2lowuid(current->euid);
233 asmlinkage long sys32_getgid16(void)
235 return high2lowgid(current->gid);
238 asmlinkage long sys32_getegid16(void)
240 return high2lowgid(current->egid);
243 /* 32-bit timeval and related flotsam. */
245 static long get_tv32(struct timeval *o, struct compat_timeval __user *i)
247 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
248 (__get_user(o->tv_sec, &i->tv_sec) |
249 __get_user(o->tv_usec, &i->tv_usec)));
252 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
254 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
255 (__put_user(i->tv_sec, &o->tv_sec) |
256 __put_user(i->tv_usec, &o->tv_usec)));
259 #ifdef CONFIG_SYSVIPC
260 asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
264 version = call >> 16; /* hack for backward compatibility */
270 /* sign extend semid */
271 return compat_sys_semtimedop((int)first,
272 compat_ptr(ptr), second,
274 /* else fall through for normal semop() */
276 /* struct sembuf is the same on 32 and 64bit :)) */
277 /* sign extend semid */
278 return sys_semtimedop((int)first, compat_ptr(ptr), second,
281 /* sign extend key, nsems */
282 return sys_semget((int)first, (int)second, third);
284 /* sign extend semid, semnum */
285 return compat_sys_semctl((int)first, (int)second, third,
289 /* sign extend msqid */
290 return compat_sys_msgsnd((int)first, (int)second, third,
293 /* sign extend msqid, msgtyp */
294 return compat_sys_msgrcv((int)first, second, (int)fifth,
295 third, version, compat_ptr(ptr));
297 /* sign extend key */
298 return sys_msgget((int)first, second);
300 /* sign extend msqid */
301 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
304 /* sign extend shmid */
305 return compat_sys_shmat((int)first, second, third, version,
308 return sys_shmdt(compat_ptr(ptr));
310 /* sign extend key_t */
311 return sys_shmget((int)first, second, third);
313 /* sign extend shmid */
314 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
324 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
329 return sys_truncate(path, (high << 32) | low);
332 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
337 return sys_ftruncate(fd, (high << 32) | low);
340 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
344 if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
345 !old_valid_dev(stat->rdev))
348 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
349 err |= put_user(stat->ino, &statbuf->st_ino);
350 err |= put_user(stat->mode, &statbuf->st_mode);
351 err |= put_user(stat->nlink, &statbuf->st_nlink);
352 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
353 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
354 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
355 err |= put_user(stat->size, &statbuf->st_size);
356 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
357 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
358 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
359 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
360 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
361 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
362 err |= put_user(stat->blksize, &statbuf->st_blksize);
363 err |= put_user(stat->blocks, &statbuf->st_blocks);
364 err |= put_user(0, &statbuf->__unused4[0]);
365 err |= put_user(0, &statbuf->__unused4[1]);
370 int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf)
374 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
375 err |= put_user(stat->ino, &statbuf->st_ino);
376 err |= put_user(stat->mode, &statbuf->st_mode);
377 err |= put_user(stat->nlink, &statbuf->st_nlink);
378 err |= put_user(stat->uid, &statbuf->st_uid);
379 err |= put_user(stat->gid, &statbuf->st_gid);
380 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
381 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
382 err |= put_user(stat->size, &statbuf->st_size);
383 err |= put_user(stat->blksize, &statbuf->st_blksize);
384 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
385 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
386 err |= put_user(stat->blocks, &statbuf->st_blocks);
387 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
388 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
389 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
390 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
391 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
392 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
393 err |= put_user(0, &statbuf->__unused4);
394 err |= put_user(0, &statbuf->__unused5);
399 asmlinkage long compat_sys_stat64(char __user * filename,
400 struct compat_stat64 __user *statbuf)
403 int error = vfs_stat(filename, &stat);
406 error = cp_compat_stat64(&stat, statbuf);
410 asmlinkage long compat_sys_lstat64(char __user * filename,
411 struct compat_stat64 __user *statbuf)
414 int error = vfs_lstat(filename, &stat);
417 error = cp_compat_stat64(&stat, statbuf);
421 asmlinkage long compat_sys_fstat64(unsigned int fd,
422 struct compat_stat64 __user * statbuf)
425 int error = vfs_fstat(fd, &stat);
428 error = cp_compat_stat64(&stat, statbuf);
432 asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
433 struct compat_stat64 __user * statbuf, int flag)
438 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
441 if (flag & AT_SYMLINK_NOFOLLOW)
442 error = vfs_lstat_fd(dfd, filename, &stat);
444 error = vfs_stat_fd(dfd, filename, &stat);
447 error = cp_compat_stat64(&stat, statbuf);
453 asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
455 return sys_sysfs(option, arg1, arg2);
467 unsigned short procs;
472 char _f[20-2*sizeof(int)-sizeof(int)];
475 asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
480 mm_segment_t old_fs = get_fs ();
483 ret = sys_sysinfo((struct sysinfo __user *) &s);
485 /* Check to see if any memory value is too large for 32-bit and
486 * scale down if needed.
488 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
489 while (s.mem_unit < PAGE_SIZE) {
493 s.totalram >>= bitcount;
494 s.freeram >>= bitcount;
495 s.sharedram >>= bitcount;
496 s.bufferram >>= bitcount;
497 s.totalswap >>= bitcount;
498 s.freeswap >>= bitcount;
499 s.totalhigh >>= bitcount;
500 s.freehigh >>= bitcount;
503 err = put_user (s.uptime, &info->uptime);
504 err |= __put_user (s.loads[0], &info->loads[0]);
505 err |= __put_user (s.loads[1], &info->loads[1]);
506 err |= __put_user (s.loads[2], &info->loads[2]);
507 err |= __put_user (s.totalram, &info->totalram);
508 err |= __put_user (s.freeram, &info->freeram);
509 err |= __put_user (s.sharedram, &info->sharedram);
510 err |= __put_user (s.bufferram, &info->bufferram);
511 err |= __put_user (s.totalswap, &info->totalswap);
512 err |= __put_user (s.freeswap, &info->freeswap);
513 err |= __put_user (s.procs, &info->procs);
514 err |= __put_user (s.totalhigh, &info->totalhigh);
515 err |= __put_user (s.freehigh, &info->freehigh);
516 err |= __put_user (s.mem_unit, &info->mem_unit);
522 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
526 mm_segment_t old_fs = get_fs ();
529 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
531 if (put_compat_timespec(&t, interval))
536 asmlinkage long compat_sys_rt_sigprocmask(int how,
537 compat_sigset_t __user *set,
538 compat_sigset_t __user *oset,
539 compat_size_t sigsetsize)
544 mm_segment_t old_fs = get_fs();
547 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
549 switch (_NSIG_WORDS) {
550 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
551 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
552 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
553 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
557 ret = sys_rt_sigprocmask(how,
558 set ? (sigset_t __user *) &s : NULL,
559 oset ? (sigset_t __user *) &s : NULL,
564 switch (_NSIG_WORDS) {
565 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
566 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
567 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
568 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
570 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
576 asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
577 compat_size_t sigsetsize)
582 mm_segment_t old_fs = get_fs();
585 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
588 switch (_NSIG_WORDS) {
589 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
590 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
591 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
592 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
594 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
600 asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
601 struct compat_siginfo __user *uinfo)
605 mm_segment_t old_fs = get_fs();
607 if (copy_siginfo_from_user32(&info, uinfo))
611 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
616 asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
617 struct old_sigaction32 __user *oact)
619 struct k_sigaction new_ka, old_ka;
623 set_thread_flag(TIF_NEWSIGNALS);
628 compat_old_sigset_t mask;
629 u32 u_handler, u_restorer;
631 ret = get_user(u_handler, &act->sa_handler);
632 new_ka.sa.sa_handler = compat_ptr(u_handler);
633 ret |= __get_user(u_restorer, &act->sa_restorer);
634 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
635 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
636 ret |= __get_user(mask, &act->sa_mask);
639 new_ka.ka_restorer = NULL;
640 siginitset(&new_ka.sa.sa_mask, mask);
643 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
646 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
647 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
648 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
649 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
655 asmlinkage long compat_sys_rt_sigaction(int sig,
656 struct sigaction32 __user *act,
657 struct sigaction32 __user *oact,
658 void __user *restorer,
659 compat_size_t sigsetsize)
661 struct k_sigaction new_ka, old_ka;
663 compat_sigset_t set32;
665 /* XXX: Don't preclude handling different sized sigset_t's. */
666 if (sigsetsize != sizeof(compat_sigset_t))
669 /* All tasks which use RT signals (effectively) use
672 set_thread_flag(TIF_NEWSIGNALS);
675 u32 u_handler, u_restorer;
677 new_ka.ka_restorer = restorer;
678 ret = get_user(u_handler, &act->sa_handler);
679 new_ka.sa.sa_handler = compat_ptr(u_handler);
680 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
681 switch (_NSIG_WORDS) {
682 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
683 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
684 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
685 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
687 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
688 ret |= __get_user(u_restorer, &act->sa_restorer);
689 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
694 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
697 switch (_NSIG_WORDS) {
698 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
699 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
700 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
701 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
703 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
704 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
705 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
706 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
715 * sparc32_execve() executes a new program after the asm stub has set
716 * things up for us. This should basically do what I want it to.
718 asmlinkage long sparc32_execve(struct pt_regs *regs)
723 /* User register window flush is done by entry.S */
725 /* Check for indirect call. */
726 if ((u32)regs->u_regs[UREG_G1] == 0)
729 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
730 error = PTR_ERR(filename);
731 if (IS_ERR(filename))
734 error = compat_do_execve(filename,
735 compat_ptr(regs->u_regs[base + UREG_I1]),
736 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
742 current_thread_info()->xfsr[0] = 0;
743 current_thread_info()->fpsaved[0] = 0;
744 regs->tstate &= ~TSTATE_PEF;
746 current->ptrace &= ~PT_DTRACE;
747 task_unlock(current);
753 #ifdef CONFIG_MODULES
755 asmlinkage long sys32_init_module(void __user *umod, u32 len,
756 const char __user *uargs)
758 return sys_init_module(umod, len, uargs);
761 asmlinkage long sys32_delete_module(const char __user *name_user,
764 return sys_delete_module(name_user, flags);
767 #else /* CONFIG_MODULES */
769 asmlinkage long sys32_init_module(const char __user *name_user,
770 struct module __user *mod_user)
775 asmlinkage long sys32_delete_module(const char __user *name_user)
780 #endif /* CONFIG_MODULES */
782 /* Translations due to time_t size differences. Which affects all
783 sorts of things, like timeval and itimerval. */
785 extern struct timezone sys_tz;
787 asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
788 struct timezone __user *tz)
792 do_gettimeofday(&ktv);
793 if (put_tv32(tv, &ktv))
797 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
803 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
807 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
809 if (__get_user(o->tv_sec, &i->tv_sec))
811 if (__get_user(usec, &i->tv_usec))
813 o->tv_nsec = usec * 1000;
817 asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
818 struct timezone __user *tz)
824 if (get_ts32(&kts, tv))
828 if (copy_from_user(&ktz, tz, sizeof(ktz)))
832 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
835 asmlinkage long sys32_utimes(char __user *filename,
836 struct compat_timeval __user *tvs)
838 struct timeval ktvs[2];
841 if (get_tv32(&ktvs[0], tvs) ||
842 get_tv32(&ktvs[1], 1+tvs))
846 return do_utimes(AT_FDCWD, filename, (tvs ? &ktvs[0] : NULL));
849 /* These are here just in case some old sparc32 binary calls it. */
850 asmlinkage long sys32_pause(void)
852 current->state = TASK_INTERRUPTIBLE;
854 return -ERESTARTNOHAND;
857 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
863 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
866 asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
872 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
875 asmlinkage long compat_sys_readahead(int fd,
880 return sys_readahead(fd, (offhi << 32) | offlo, count);
883 long compat_sys_fadvise64(int fd,
886 compat_size_t len, int advice)
888 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
891 long compat_sys_fadvise64_64(int fd,
892 unsigned long offhi, unsigned long offlo,
893 unsigned long lenhi, unsigned long lenlo,
896 return sys_fadvise64_64(fd,
897 (offhi << 32) | offlo,
898 (lenhi << 32) | lenlo,
902 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
903 compat_off_t __user *offset,
906 mm_segment_t old_fs = get_fs();
910 if (offset && get_user(of, offset))
914 ret = sys_sendfile(out_fd, in_fd,
915 offset ? (off_t __user *) &of : NULL,
919 if (offset && put_user(of, offset))
925 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
926 compat_loff_t __user *offset,
929 mm_segment_t old_fs = get_fs();
933 if (offset && get_user(lof, offset))
937 ret = sys_sendfile64(out_fd, in_fd,
938 offset ? (loff_t __user *) &lof : NULL,
942 if (offset && put_user(lof, offset))
948 /* Handle adjtimex compatibility. */
952 s32 offset, freq, maxerror, esterror;
953 s32 status, constant, precision, tolerance;
954 struct compat_timeval time;
956 s32 ppsfreq, jitter, shift, stabil;
957 s32 jitcnt, calcnt, errcnt, stbcnt;
958 s32 :32; s32 :32; s32 :32; s32 :32;
959 s32 :32; s32 :32; s32 :32; s32 :32;
960 s32 :32; s32 :32; s32 :32; s32 :32;
963 extern int do_adjtimex(struct timex *);
965 asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
970 memset(&txc, 0, sizeof(struct timex));
972 if (get_user(txc.modes, &utp->modes) ||
973 __get_user(txc.offset, &utp->offset) ||
974 __get_user(txc.freq, &utp->freq) ||
975 __get_user(txc.maxerror, &utp->maxerror) ||
976 __get_user(txc.esterror, &utp->esterror) ||
977 __get_user(txc.status, &utp->status) ||
978 __get_user(txc.constant, &utp->constant) ||
979 __get_user(txc.precision, &utp->precision) ||
980 __get_user(txc.tolerance, &utp->tolerance) ||
981 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
982 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
983 __get_user(txc.tick, &utp->tick) ||
984 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
985 __get_user(txc.jitter, &utp->jitter) ||
986 __get_user(txc.shift, &utp->shift) ||
987 __get_user(txc.stabil, &utp->stabil) ||
988 __get_user(txc.jitcnt, &utp->jitcnt) ||
989 __get_user(txc.calcnt, &utp->calcnt) ||
990 __get_user(txc.errcnt, &utp->errcnt) ||
991 __get_user(txc.stbcnt, &utp->stbcnt))
994 ret = do_adjtimex(&txc);
996 if (put_user(txc.modes, &utp->modes) ||
997 __put_user(txc.offset, &utp->offset) ||
998 __put_user(txc.freq, &utp->freq) ||
999 __put_user(txc.maxerror, &utp->maxerror) ||
1000 __put_user(txc.esterror, &utp->esterror) ||
1001 __put_user(txc.status, &utp->status) ||
1002 __put_user(txc.constant, &utp->constant) ||
1003 __put_user(txc.precision, &utp->precision) ||
1004 __put_user(txc.tolerance, &utp->tolerance) ||
1005 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1006 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1007 __put_user(txc.tick, &utp->tick) ||
1008 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1009 __put_user(txc.jitter, &utp->jitter) ||
1010 __put_user(txc.shift, &utp->shift) ||
1011 __put_user(txc.stabil, &utp->stabil) ||
1012 __put_user(txc.jitcnt, &utp->jitcnt) ||
1013 __put_user(txc.calcnt, &utp->calcnt) ||
1014 __put_user(txc.errcnt, &utp->errcnt) ||
1015 __put_user(txc.stbcnt, &utp->stbcnt))
1021 /* This is just a version for 32-bit applications which does
1022 * not force O_LARGEFILE on.
1025 asmlinkage long sparc32_open(const char __user *filename,
1026 int flags, int mode)
1028 return do_sys_open(AT_FDCWD, filename, flags, mode);
1031 extern unsigned long do_mremap(unsigned long addr,
1032 unsigned long old_len, unsigned long new_len,
1033 unsigned long flags, unsigned long new_addr);
1035 asmlinkage unsigned long sys32_mremap(unsigned long addr,
1036 unsigned long old_len, unsigned long new_len,
1037 unsigned long flags, u32 __new_addr)
1039 struct vm_area_struct *vma;
1040 unsigned long ret = -EINVAL;
1041 unsigned long new_addr = __new_addr;
1043 if (old_len > STACK_TOP32 || new_len > STACK_TOP32)
1045 if (addr > STACK_TOP32 - old_len)
1047 down_write(¤t->mm->mmap_sem);
1048 if (flags & MREMAP_FIXED) {
1049 if (new_addr > STACK_TOP32 - new_len)
1051 } else if (addr > STACK_TOP32 - new_len) {
1052 unsigned long map_flags = 0;
1053 struct file *file = NULL;
1056 if (!(flags & MREMAP_MAYMOVE))
1059 vma = find_vma(current->mm, addr);
1061 if (vma->vm_flags & VM_SHARED)
1062 map_flags |= MAP_SHARED;
1063 file = vma->vm_file;
1066 /* MREMAP_FIXED checked above. */
1067 new_addr = get_unmapped_area(file, addr, new_len,
1068 vma ? vma->vm_pgoff : 0,
1071 if (new_addr & ~PAGE_MASK)
1073 flags |= MREMAP_FIXED;
1075 ret = do_mremap(addr, old_len, new_len, flags, new_addr);
1077 up_write(¤t->mm->mmap_sem);
1082 struct __sysctl_args32 {
1092 asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
1094 #ifndef CONFIG_SYSCTL
1097 struct __sysctl_args32 tmp;
1099 size_t oldlen, __user *oldlenp = NULL;
1100 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
1102 if (copy_from_user(&tmp, args, sizeof(tmp)))
1105 if (tmp.oldval && tmp.oldlenp) {
1106 /* Duh, this is ugly and might not work if sysctl_args
1107 is in read-only memory, but do_sysctl does indirectly
1108 a lot of uaccess in both directions and we'd have to
1109 basically copy the whole sysctl.c here, and
1110 glibc's __sysctl uses rw memory for the structure
1112 if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
1113 put_user(oldlen, (size_t __user *)addr))
1115 oldlenp = (size_t __user *)addr;
1119 error = do_sysctl((int __user *)(unsigned long) tmp.name,
1121 (void __user *)(unsigned long) tmp.oldval,
1123 (void __user *)(unsigned long) tmp.newval,
1128 if (get_user(oldlen, (size_t __user *)addr) ||
1129 put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
1132 if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
1139 long sys32_lookup_dcookie(unsigned long cookie_high,
1140 unsigned long cookie_low,
1141 char __user *buf, size_t len)
1143 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,