2 * Conversion between 32-bit and 64-bit native system calls.
4 * Copyright (C) 2000 Silicon Graphics, Inc.
5 * Written by Ulf Carlsson (ulfc@engr.sgi.com)
6 * sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com)
8 #include <linux/config.h>
9 #include <linux/compiler.h>
11 #include <linux/errno.h>
12 #include <linux/file.h>
13 #include <linux/smp_lock.h>
14 #include <linux/highuid.h>
15 #include <linux/dirent.h>
16 #include <linux/resource.h>
17 #include <linux/highmem.h>
18 #include <linux/time.h>
19 #include <linux/times.h>
20 #include <linux/poll.h>
21 #include <linux/slab.h>
22 #include <linux/skbuff.h>
23 #include <linux/filter.h>
24 #include <linux/shm.h>
25 #include <linux/sem.h>
26 #include <linux/msg.h>
27 #include <linux/icmpv6.h>
28 #include <linux/syscalls.h>
29 #include <linux/sysctl.h>
30 #include <linux/utime.h>
31 #include <linux/utsname.h>
32 #include <linux/personality.h>
33 #include <linux/timex.h>
34 #include <linux/dnotify.h>
35 #include <linux/module.h>
36 #include <linux/binfmts.h>
37 #include <linux/security.h>
38 #include <linux/compat.h>
39 #include <linux/vfs.h>
46 #include <asm/uaccess.h>
47 #include <asm/mmu_context.h>
50 /* Use this to get at 32-bit user passed pointers. */
51 /* A() macro should be used for places where you e.g.
52 have some internal variable u32 and just want to get
53 rid of a compiler warning. AA() has to be used in
54 places where you want to convert a function argument
55 to 32bit pointer or when you e.g. access pt_regs
56 structure and want to consider 32bit registers only.
58 #define A(__x) ((unsigned long)(__x))
59 #define AA(__x) ((unsigned long)((int)__x))
62 #define merge_64(r1,r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL))
65 #define merge_64(r1,r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
69 * Revalidate the inode. This is required for proper NFS attribute caching.
72 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
74 struct compat_stat tmp;
76 if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
79 memset(&tmp, 0, sizeof(tmp));
80 tmp.st_dev = new_encode_dev(stat->dev);
81 tmp.st_ino = stat->ino;
82 tmp.st_mode = stat->mode;
83 tmp.st_nlink = stat->nlink;
84 SET_UID(tmp.st_uid, stat->uid);
85 SET_GID(tmp.st_gid, stat->gid);
86 tmp.st_rdev = new_encode_dev(stat->rdev);
87 tmp.st_size = stat->size;
88 tmp.st_atime = stat->atime.tv_sec;
89 tmp.st_mtime = stat->mtime.tv_sec;
90 tmp.st_ctime = stat->ctime.tv_sec;
92 tmp.st_atime_nsec = stat->atime.tv_nsec;
93 tmp.st_mtime_nsec = stat->mtime.tv_nsec;
94 tmp.st_ctime_nsec = stat->ctime.tv_nsec;
96 tmp.st_blocks = stat->blocks;
97 tmp.st_blksize = stat->blksize;
98 return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
101 asmlinkage unsigned long
102 sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
103 unsigned long flags, unsigned long fd, unsigned long pgoff)
105 struct file * file = NULL;
109 if (!(flags & MAP_ANONYMOUS)) {
115 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
117 down_write(¤t->mm->mmap_sem);
118 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
119 up_write(¤t->mm->mmap_sem);
128 asmlinkage int sys_truncate64(const char *path, unsigned int high,
133 return sys_truncate(path, ((long) high << 32) | low);
136 asmlinkage int sys_ftruncate64(unsigned int fd, unsigned int high,
141 return sys_ftruncate(fd, ((long) high << 32) | low);
145 * sys_execve() executes a new program.
147 asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
152 filename = getname(compat_ptr(regs.regs[4]));
153 error = PTR_ERR(filename);
154 if (IS_ERR(filename))
156 error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
157 compat_ptr(regs.regs[6]), ®s);
165 sysn32_waitid(int which, compat_pid_t pid,
166 siginfo_t __user *uinfo, int options,
167 struct compat_rusage __user *uru)
171 mm_segment_t old_fs = get_fs();
173 if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
177 ret = sys_waitid(which, pid, uinfo, options,
178 uru ? (struct rusage __user *) &ru : NULL);
181 if (ret < 0 || uinfo->si_signo == 0)
185 ret = put_compat_rusage(&ru, uru);
205 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
209 mm_segment_t old_fs = get_fs ();
212 ret = sys_sysinfo(&s);
214 err = put_user (s.uptime, &info->uptime);
215 err |= __put_user (s.loads[0], &info->loads[0]);
216 err |= __put_user (s.loads[1], &info->loads[1]);
217 err |= __put_user (s.loads[2], &info->loads[2]);
218 err |= __put_user (s.totalram, &info->totalram);
219 err |= __put_user (s.freeram, &info->freeram);
220 err |= __put_user (s.sharedram, &info->sharedram);
221 err |= __put_user (s.bufferram, &info->bufferram);
222 err |= __put_user (s.totalswap, &info->totalswap);
223 err |= __put_user (s.freeswap, &info->freeswap);
224 err |= __put_user (s.procs, &info->procs);
225 err |= __put_user (s.totalhigh, &info->totalhigh);
226 err |= __put_user (s.freehigh, &info->freehigh);
227 err |= __put_user (s.mem_unit, &info->mem_unit);
233 #define RLIM_INFINITY32 0x7fffffff
234 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
242 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
243 int length_hi, int length_lo)
246 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
247 int length_lo, int length_hi)
252 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
254 return sys_truncate(path, length);
258 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
259 int length_hi, int length_lo)
262 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
263 int length_lo, int length_hi)
268 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
270 return sys_ftruncate(fd, length);
274 get_tv32(struct timeval *o, struct compat_timeval *i)
276 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
277 (__get_user(o->tv_sec, &i->tv_sec) |
278 __get_user(o->tv_usec, &i->tv_usec)));
282 put_tv32(struct compat_timeval *o, struct timeval *i)
284 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
285 (__put_user(i->tv_sec, &o->tv_sec) |
286 __put_user(i->tv_usec, &o->tv_usec)));
289 extern struct timezone sys_tz;
292 sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
296 do_gettimeofday(&ktv);
297 if (put_tv32(tv, &ktv))
301 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
307 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
311 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
313 if (__get_user(o->tv_sec, &i->tv_sec))
315 if (__get_user(usec, &i->tv_usec))
317 o->tv_nsec = usec * 1000;
322 sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
328 if (get_ts32(&kts, tv))
332 if (copy_from_user(&ktz, tz, sizeof(ktz)))
336 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
339 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
340 unsigned int offset_low, loff_t * result,
343 return sys_llseek(fd, offset_high, offset_low, result, origin);
346 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
347 lseek back to original location. They fail just like lseek does on
348 non-seekable files. */
350 asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
351 size_t count, u32 unused, u64 a4, u64 a5)
355 ssize_t (*read)(struct file *, char *, size_t, loff_t *);
362 if (!(file->f_mode & FMODE_READ))
364 pos = merge_64(a4, a5);
365 ret = rw_verify_area(READ, file, &pos, count);
369 if (!file->f_op || !(read = file->f_op->read))
374 if (!(file->f_mode & FMODE_PREAD))
376 ret = read(file, buf, count, &pos);
378 dnotify_parent(file->f_dentry, DN_ACCESS);
385 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
386 size_t count, u32 unused, u64 a4, u64 a5)
390 ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
397 if (!(file->f_mode & FMODE_WRITE))
399 pos = merge_64(a4, a5);
400 ret = rw_verify_area(WRITE, file, &pos, count);
404 if (!file->f_op || !(write = file->f_op->write))
410 if (!(file->f_mode & FMODE_PWRITE))
413 ret = write(file, buf, count, &pos);
415 dnotify_parent(file->f_dentry, DN_MODIFY);
422 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
423 struct compat_timespec *interval)
427 mm_segment_t old_fs = get_fs ();
430 ret = sys_sched_rr_get_interval(pid, &t);
432 if (put_user (t.tv_sec, &interval->tv_sec) ||
433 __put_user (t.tv_nsec, &interval->tv_nsec))
438 struct msgbuf32 { s32 mtype; char mtext[1]; };
451 struct ipc64_perm32 {
459 unsigned short __pad1;
460 unsigned int __unused1;
461 unsigned int __unused2;
465 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
466 compat_time_t sem_otime; /* last semop time */
467 compat_time_t sem_ctime; /* last change time */
468 u32 sem_base; /* ptr to first semaphore in array */
469 u32 sem_pending; /* pending operations to be processed */
470 u32 sem_pending_last; /* last pending operation */
471 u32 undo; /* undo requests on this array */
472 unsigned short sem_nsems; /* no. of semaphores in array */
475 struct semid64_ds32 {
476 struct ipc64_perm32 sem_perm;
477 compat_time_t sem_otime;
478 compat_time_t sem_ctime;
479 unsigned int sem_nsems;
480 unsigned int __unused1;
481 unsigned int __unused2;
486 struct ipc_perm32 msg_perm;
489 compat_time_t msg_stime;
490 compat_time_t msg_rtime;
491 compat_time_t msg_ctime;
494 unsigned short msg_cbytes;
495 unsigned short msg_qnum;
496 unsigned short msg_qbytes;
497 compat_ipc_pid_t msg_lspid;
498 compat_ipc_pid_t msg_lrpid;
501 struct msqid64_ds32 {
502 struct ipc64_perm32 msg_perm;
503 compat_time_t msg_stime;
504 unsigned int __unused1;
505 compat_time_t msg_rtime;
506 unsigned int __unused2;
507 compat_time_t msg_ctime;
508 unsigned int __unused3;
509 unsigned int msg_cbytes;
510 unsigned int msg_qnum;
511 unsigned int msg_qbytes;
512 compat_pid_t msg_lspid;
513 compat_pid_t msg_lrpid;
514 unsigned int __unused4;
515 unsigned int __unused5;
519 struct ipc_perm32 shm_perm;
521 compat_time_t shm_atime;
522 compat_time_t shm_dtime;
523 compat_time_t shm_ctime;
524 compat_ipc_pid_t shm_cpid;
525 compat_ipc_pid_t shm_lpid;
526 unsigned short shm_nattch;
529 struct shmid64_ds32 {
530 struct ipc64_perm32 shm_perm;
531 compat_size_t shm_segsz;
532 compat_time_t shm_atime;
533 compat_time_t shm_dtime;
534 compat_time_t shm_ctime;
535 compat_pid_t shm_cpid;
536 compat_pid_t shm_lpid;
537 unsigned int shm_nattch;
538 unsigned int __unused1;
539 unsigned int __unused2;
542 struct ipc_kludge32 {
548 do_sys32_semctl(int first, int second, int third, void *uptr)
559 if (get_user (pad, (u32 *)uptr))
561 if ((third & ~IPC_64) == SETVAL)
562 fourth.val = (int)pad;
564 fourth.__pad = (void *)A(pad);
565 switch (third & ~IPC_64) {
577 err = sys_semctl (first, second, third, fourth);
585 err = sys_semctl(first, second, third | IPC_64, fourth);
588 if (third & IPC_64) {
589 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
591 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
595 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
596 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
597 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
598 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
599 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
600 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
601 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
602 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
603 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
604 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
606 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
608 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
612 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
613 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
614 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
615 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
616 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
617 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
618 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
619 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
620 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
621 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
636 do_sys32_msgsnd (int first, int second, int third, void *uptr)
638 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
645 p = kmalloc (second + sizeof (struct msgbuf)
649 err = get_user (p->mtype, &up->mtype);
652 err |= __copy_from_user (p->mtext, &up->mtext, second);
657 err = sys_msgsnd (first, p, second, third);
666 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
667 int version, void *uptr)
675 struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
676 struct ipc_kludge32 ipck;
682 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
684 uptr = (void *)AA(ipck.msgp);
685 msgtyp = ipck.msgtyp;
691 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
696 err = sys_msgrcv (first, p, second + 4, msgtyp, third);
700 up = (struct msgbuf32 *)uptr;
701 if (put_user (p->mtype, &up->mtype) ||
702 __copy_to_user (&up->mtext, p->mtext, err))
711 do_sys32_msgctl (int first, int second, void *uptr)
713 int err = -EINVAL, err2;
715 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
716 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
719 switch (second & ~IPC_64) {
723 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
727 if (second & IPC_64) {
728 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
732 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
733 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
734 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
735 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
737 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
741 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
742 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
743 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
744 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
750 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
758 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
760 if (second & IPC_64) {
761 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
765 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
766 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
767 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
768 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
769 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
770 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
771 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
772 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
773 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
774 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
775 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
776 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
777 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
778 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
779 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
783 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
787 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
788 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
789 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
790 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
791 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
792 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
793 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
794 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
795 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
796 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
797 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
798 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
799 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
800 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
801 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
812 do_sys32_shmat (int first, int second, int third, int version, void *uptr)
815 u32 *uaddr = (u32 *)A((u32)third);
820 err = do_shmat (first, uptr, second, &raddr);
823 err = put_user (raddr, uaddr);
829 u32 shm_tot, shm_rss, shm_swp;
830 u32 swap_attempts, swap_successes;
834 do_sys32_shmctl (int first, int second, void *uptr)
836 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
837 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
838 struct shm_info32 *uip = (struct shm_info32 *)uptr;
839 int err = -EFAULT, err2;
840 struct shmid64_ds s64;
845 switch (second & ~IPC_64) {
847 second = IPC_INFO; /* So that we don't have to translate it */
851 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
854 if (second & IPC_64) {
855 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
856 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
857 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
859 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
860 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
861 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
867 err = sys_shmctl(first, second & ~IPC_64, &s);
875 err = sys_shmctl(first, second | IPC_64, (void *) &s64);
879 if (second & IPC_64) {
880 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
884 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
885 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
886 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
887 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
888 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
889 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
890 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
891 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
892 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
893 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
894 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
895 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
896 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
897 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
899 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
903 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
904 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
905 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
906 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
907 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
908 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
909 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
910 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
911 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
912 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
913 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
914 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
915 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
916 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
925 err = sys_shmctl(first, second, (void *)&si);
929 err2 = put_user(si.used_ids, &uip->used_ids);
930 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
931 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
932 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
933 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
934 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
947 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
948 const struct compat_timespec *timeout32)
950 struct compat_timespec t32;
951 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
953 if (copy_from_user(&t32, timeout32, sizeof(t32)))
956 if (put_user(t32.tv_sec, &t64->tv_sec) ||
957 put_user(t32.tv_nsec, &t64->tv_nsec))
960 return sys_semtimedop(semid, tsems, nsems, t64);
964 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
968 version = call >> 16; /* hack for backward compatibility */
973 /* struct sembuf is the same on 32 and 64bit :)) */
974 err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
978 err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
979 (const struct compat_timespec __user *)AA(fifth));
982 err = sys_semget (first, second, third);
985 err = do_sys32_semctl (first, second, third,
990 err = do_sys32_msgsnd (first, second, third,
994 err = do_sys32_msgrcv (first, second, fifth, third,
995 version, (void *)AA(ptr));
998 err = sys_msgget ((key_t) first, second);
1001 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
1005 err = do_sys32_shmat (first, second, third,
1006 version, (void *)AA(ptr));
1009 err = sys_shmdt ((char *)A(ptr));
1012 err = sys_shmget (first, (unsigned)second, third);
1015 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
1025 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1026 int shmflg, int32_t *addr)
1028 unsigned long raddr;
1031 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1035 return put_user(raddr, addr);
1038 struct sysctl_args32
1040 compat_caddr_t name;
1042 compat_caddr_t oldval;
1043 compat_caddr_t oldlenp;
1044 compat_caddr_t newval;
1045 compat_size_t newlen;
1046 unsigned int __unused[4];
1049 #ifdef CONFIG_SYSCTL
1051 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1053 struct sysctl_args32 tmp;
1055 size_t oldlen, *oldlenp = NULL;
1056 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1058 if (copy_from_user(&tmp, args, sizeof(tmp)))
1061 if (tmp.oldval && tmp.oldlenp) {
1062 /* Duh, this is ugly and might not work if sysctl_args
1063 is in read-only memory, but do_sysctl does indirectly
1064 a lot of uaccess in both directions and we'd have to
1065 basically copy the whole sysctl.c here, and
1066 glibc's __sysctl uses rw memory for the structure
1068 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1069 put_user(oldlen, (size_t *)addr))
1071 oldlenp = (size_t *)addr;
1075 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1076 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1080 if (get_user(oldlen, (size_t *)addr) ||
1081 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1084 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1089 #endif /* CONFIG_SYSCTL */
1091 asmlinkage long sys32_newuname(struct new_utsname * name)
1095 down_read(&uts_sem);
1096 if (copy_to_user(name,&system_utsname,sizeof *name))
1100 if (current->personality == PER_LINUX32 && !ret)
1101 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1107 asmlinkage int sys32_personality(unsigned long personality)
1110 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1111 personality = PER_LINUX32;
1112 ret = sys_personality(personality);
1113 if (ret == PER_LINUX32)
1118 /* ustat compatibility */
1120 compat_daddr_t f_tfree;
1121 compat_ino_t f_tinode;
1126 extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
1128 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
1132 struct ustat32 tmp32;
1133 mm_segment_t old_fs = get_fs();
1136 err = sys_ustat(dev, &tmp);
1142 memset(&tmp32,0,sizeof(struct ustat32));
1143 tmp32.f_tfree = tmp.f_tfree;
1144 tmp32.f_tinode = tmp.f_tinode;
1146 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1152 /* Handle adjtimex compatibility. */
1156 s32 offset, freq, maxerror, esterror;
1157 s32 status, constant, precision, tolerance;
1158 struct compat_timeval time;
1160 s32 ppsfreq, jitter, shift, stabil;
1161 s32 jitcnt, calcnt, errcnt, stbcnt;
1162 s32 :32; s32 :32; s32 :32; s32 :32;
1163 s32 :32; s32 :32; s32 :32; s32 :32;
1164 s32 :32; s32 :32; s32 :32; s32 :32;
1167 extern int do_adjtimex(struct timex *);
1169 asmlinkage int sys32_adjtimex(struct timex32 *utp)
1174 memset(&txc, 0, sizeof(struct timex));
1176 if (get_user(txc.modes, &utp->modes) ||
1177 __get_user(txc.offset, &utp->offset) ||
1178 __get_user(txc.freq, &utp->freq) ||
1179 __get_user(txc.maxerror, &utp->maxerror) ||
1180 __get_user(txc.esterror, &utp->esterror) ||
1181 __get_user(txc.status, &utp->status) ||
1182 __get_user(txc.constant, &utp->constant) ||
1183 __get_user(txc.precision, &utp->precision) ||
1184 __get_user(txc.tolerance, &utp->tolerance) ||
1185 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1186 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1187 __get_user(txc.tick, &utp->tick) ||
1188 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1189 __get_user(txc.jitter, &utp->jitter) ||
1190 __get_user(txc.shift, &utp->shift) ||
1191 __get_user(txc.stabil, &utp->stabil) ||
1192 __get_user(txc.jitcnt, &utp->jitcnt) ||
1193 __get_user(txc.calcnt, &utp->calcnt) ||
1194 __get_user(txc.errcnt, &utp->errcnt) ||
1195 __get_user(txc.stbcnt, &utp->stbcnt))
1198 ret = do_adjtimex(&txc);
1200 if (put_user(txc.modes, &utp->modes) ||
1201 __put_user(txc.offset, &utp->offset) ||
1202 __put_user(txc.freq, &utp->freq) ||
1203 __put_user(txc.maxerror, &utp->maxerror) ||
1204 __put_user(txc.esterror, &utp->esterror) ||
1205 __put_user(txc.status, &utp->status) ||
1206 __put_user(txc.constant, &utp->constant) ||
1207 __put_user(txc.precision, &utp->precision) ||
1208 __put_user(txc.tolerance, &utp->tolerance) ||
1209 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1210 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1211 __put_user(txc.tick, &utp->tick) ||
1212 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1213 __put_user(txc.jitter, &utp->jitter) ||
1214 __put_user(txc.shift, &utp->shift) ||
1215 __put_user(txc.stabil, &utp->stabil) ||
1216 __put_user(txc.jitcnt, &utp->jitcnt) ||
1217 __put_user(txc.calcnt, &utp->calcnt) ||
1218 __put_user(txc.errcnt, &utp->errcnt) ||
1219 __put_user(txc.stbcnt, &utp->stbcnt))
1225 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
1228 mm_segment_t old_fs = get_fs();
1232 if (offset && get_user(of, offset))
1236 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1239 if (offset && put_user(of, offset))
1245 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1248 return sys_readahead(fd, merge_64(a2, a3), count);
1251 /* Argument list sizes for sys_socketcall */
1252 #define AL(x) ((x) * sizeof(unsigned int))
1253 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1254 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1255 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1259 * System call vectors.
1261 * Argument checking cleaned up. Saved 20% in size.
1262 * This function doesn't need to set the kernel lock because
1263 * it is set by the callees.
1266 asmlinkage long sys32_socketcall(int call, unsigned int *args32)
1272 extern asmlinkage long sys_socket(int family, int type, int protocol);
1273 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1274 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1275 extern asmlinkage long sys_listen(int fd, int backlog);
1276 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1277 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1278 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1279 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1280 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1281 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1282 struct sockaddr __user *addr, int addr_len);
1283 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1284 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1285 struct sockaddr __user *addr, int __user *addr_len);
1286 extern asmlinkage long sys_shutdown(int fd, int how);
1287 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1288 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
1289 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1290 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1293 if(call<1||call>SYS_RECVMSG)
1296 /* copy_from_user should be SMP safe. */
1297 if (copy_from_user(a, args32, socketcall_nargs[call]))
1306 err = sys_socket(a0,a1,a[2]);
1309 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1312 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1315 err = sys_listen(a0,a1);
1318 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1320 case SYS_GETSOCKNAME:
1321 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1323 case SYS_GETPEERNAME:
1324 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1326 case SYS_SOCKETPAIR:
1327 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1330 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1333 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1334 (struct sockaddr __user *)A(a[4]), a[5]);
1337 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1340 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1341 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1344 err = sys_shutdown(a0,a1);
1346 case SYS_SETSOCKOPT:
1347 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1349 case SYS_GETSOCKOPT:
1350 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1353 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1356 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1369 u32 payload[(64 / 4) - 3];
1372 extern asmlinkage long
1373 sys_timer_create(clockid_t which_clock,
1374 struct sigevent __user *timer_event_spec,
1375 timer_t __user * created_timer_id);
1378 sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
1380 struct sigevent __user *p = NULL;
1383 p = compat_alloc_user_space(sizeof(struct sigevent));
1384 memset(&se, 0, sizeof(struct sigevent));
1385 if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
1386 __get_user(se.sigev_signo, &se32->sigev_signo) ||
1387 __get_user(se.sigev_notify, &se32->sigev_notify) ||
1388 __copy_from_user(&se._sigev_un._pad, &se32->payload,
1389 sizeof(se32->payload)) ||
1390 copy_to_user(p, &se, sizeof(se)))
1393 return sys_timer_create(clock, p, timer_id);
1396 save_static_function(sys32_clone);
1397 __attribute_used__ noinline static int
1398 _sys32_clone(nabi_no_regargs struct pt_regs regs)
1400 unsigned long clone_flags;
1401 unsigned long newsp;
1402 int __user *parent_tidptr, *child_tidptr;
1404 clone_flags = regs.regs[4];
1405 newsp = regs.regs[5];
1407 newsp = regs.regs[29];
1408 parent_tidptr = (int *) regs.regs[6];
1410 /* Use __dummy4 instead of getting it off the stack, so that
1412 child_tidptr = (int __user *) __dummy4;
1413 return do_fork(clone_flags, newsp, ®s, 0,
1414 parent_tidptr, child_tidptr);
1417 extern asmlinkage void sys_set_thread_area(u32 addr);
1418 asmlinkage void sys32_set_thread_area(u32 addr)
1420 sys_set_thread_area(AA(addr));