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 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
167 return compat_sys_wait4(pid, stat_addr, options, NULL);
171 sysn32_waitid(int which, compat_pid_t pid,
172 siginfo_t __user *uinfo, int options,
173 struct compat_rusage __user *uru)
177 mm_segment_t old_fs = get_fs();
179 if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
183 ret = sys_waitid(which, pid, uinfo, options,
184 uru ? (struct rusage __user *) &ru : NULL);
187 if (ret < 0 || uinfo->si_signo == 0)
191 ret = put_compat_rusage(&ru, uru);
211 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
215 mm_segment_t old_fs = get_fs ();
218 ret = sys_sysinfo(&s);
220 err = put_user (s.uptime, &info->uptime);
221 err |= __put_user (s.loads[0], &info->loads[0]);
222 err |= __put_user (s.loads[1], &info->loads[1]);
223 err |= __put_user (s.loads[2], &info->loads[2]);
224 err |= __put_user (s.totalram, &info->totalram);
225 err |= __put_user (s.freeram, &info->freeram);
226 err |= __put_user (s.sharedram, &info->sharedram);
227 err |= __put_user (s.bufferram, &info->bufferram);
228 err |= __put_user (s.totalswap, &info->totalswap);
229 err |= __put_user (s.freeswap, &info->freeswap);
230 err |= __put_user (s.procs, &info->procs);
231 err |= __put_user (s.totalhigh, &info->totalhigh);
232 err |= __put_user (s.freehigh, &info->freehigh);
233 err |= __put_user (s.mem_unit, &info->mem_unit);
239 #define RLIM_INFINITY32 0x7fffffff
240 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
248 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
249 int length_hi, int length_lo)
252 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
253 int length_lo, int length_hi)
258 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
260 return sys_truncate(path, length);
264 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
265 int length_hi, int length_lo)
268 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
269 int length_lo, int length_hi)
274 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
276 return sys_ftruncate(fd, length);
280 get_tv32(struct timeval *o, struct compat_timeval *i)
282 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
283 (__get_user(o->tv_sec, &i->tv_sec) |
284 __get_user(o->tv_usec, &i->tv_usec)));
288 put_tv32(struct compat_timeval *o, struct timeval *i)
290 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
291 (__put_user(i->tv_sec, &o->tv_sec) |
292 __put_user(i->tv_usec, &o->tv_usec)));
295 extern struct timezone sys_tz;
298 sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
302 do_gettimeofday(&ktv);
303 if (put_tv32(tv, &ktv))
307 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
313 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
317 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
319 if (__get_user(o->tv_sec, &i->tv_sec))
321 if (__get_user(usec, &i->tv_usec))
323 o->tv_nsec = usec * 1000;
328 sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
334 if (get_ts32(&kts, tv))
338 if (copy_from_user(&ktz, tz, sizeof(ktz)))
342 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
345 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
346 unsigned int offset_low, loff_t * result,
349 return sys_llseek(fd, offset_high, offset_low, result, origin);
352 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
353 lseek back to original location. They fail just like lseek does on
354 non-seekable files. */
356 asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
357 size_t count, u32 unused, u64 a4, u64 a5)
361 ssize_t (*read)(struct file *, char *, size_t, loff_t *);
368 if (!(file->f_mode & FMODE_READ))
370 pos = merge_64(a4, a5);
371 ret = rw_verify_area(READ, file, &pos, count);
375 if (!file->f_op || !(read = file->f_op->read))
380 if (!(file->f_mode & FMODE_PREAD))
382 ret = read(file, buf, count, &pos);
384 dnotify_parent(file->f_dentry, DN_ACCESS);
391 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
392 size_t count, u32 unused, u64 a4, u64 a5)
396 ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
403 if (!(file->f_mode & FMODE_WRITE))
405 pos = merge_64(a4, a5);
406 ret = rw_verify_area(WRITE, file, &pos, count);
410 if (!file->f_op || !(write = file->f_op->write))
416 if (!(file->f_mode & FMODE_PWRITE))
419 ret = write(file, buf, count, &pos);
421 dnotify_parent(file->f_dentry, DN_MODIFY);
428 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
429 struct compat_timespec *interval)
433 mm_segment_t old_fs = get_fs ();
436 ret = sys_sched_rr_get_interval(pid, &t);
438 if (put_user (t.tv_sec, &interval->tv_sec) ||
439 __put_user (t.tv_nsec, &interval->tv_nsec))
444 struct msgbuf32 { s32 mtype; char mtext[1]; };
457 struct ipc64_perm32 {
465 unsigned short __pad1;
466 unsigned int __unused1;
467 unsigned int __unused2;
471 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
472 compat_time_t sem_otime; /* last semop time */
473 compat_time_t sem_ctime; /* last change time */
474 u32 sem_base; /* ptr to first semaphore in array */
475 u32 sem_pending; /* pending operations to be processed */
476 u32 sem_pending_last; /* last pending operation */
477 u32 undo; /* undo requests on this array */
478 unsigned short sem_nsems; /* no. of semaphores in array */
481 struct semid64_ds32 {
482 struct ipc64_perm32 sem_perm;
483 compat_time_t sem_otime;
484 compat_time_t sem_ctime;
485 unsigned int sem_nsems;
486 unsigned int __unused1;
487 unsigned int __unused2;
492 struct ipc_perm32 msg_perm;
495 compat_time_t msg_stime;
496 compat_time_t msg_rtime;
497 compat_time_t msg_ctime;
500 unsigned short msg_cbytes;
501 unsigned short msg_qnum;
502 unsigned short msg_qbytes;
503 compat_ipc_pid_t msg_lspid;
504 compat_ipc_pid_t msg_lrpid;
507 struct msqid64_ds32 {
508 struct ipc64_perm32 msg_perm;
509 compat_time_t msg_stime;
510 unsigned int __unused1;
511 compat_time_t msg_rtime;
512 unsigned int __unused2;
513 compat_time_t msg_ctime;
514 unsigned int __unused3;
515 unsigned int msg_cbytes;
516 unsigned int msg_qnum;
517 unsigned int msg_qbytes;
518 compat_pid_t msg_lspid;
519 compat_pid_t msg_lrpid;
520 unsigned int __unused4;
521 unsigned int __unused5;
525 struct ipc_perm32 shm_perm;
527 compat_time_t shm_atime;
528 compat_time_t shm_dtime;
529 compat_time_t shm_ctime;
530 compat_ipc_pid_t shm_cpid;
531 compat_ipc_pid_t shm_lpid;
532 unsigned short shm_nattch;
535 struct shmid64_ds32 {
536 struct ipc64_perm32 shm_perm;
537 compat_size_t shm_segsz;
538 compat_time_t shm_atime;
539 compat_time_t shm_dtime;
540 compat_time_t shm_ctime;
541 compat_pid_t shm_cpid;
542 compat_pid_t shm_lpid;
543 unsigned int shm_nattch;
544 unsigned int __unused1;
545 unsigned int __unused2;
548 struct ipc_kludge32 {
554 do_sys32_semctl(int first, int second, int third, void *uptr)
565 if (get_user (pad, (u32 *)uptr))
567 if ((third & ~IPC_64) == SETVAL)
568 fourth.val = (int)pad;
570 fourth.__pad = (void *)A(pad);
571 switch (third & ~IPC_64) {
583 err = sys_semctl (first, second, third, fourth);
591 err = sys_semctl(first, second, third | IPC_64, fourth);
594 if (third & IPC_64) {
595 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
597 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
601 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
602 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
603 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
604 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
605 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
606 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
607 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
608 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
609 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
610 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
612 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
614 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
618 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
619 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
620 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
621 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
622 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
623 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
624 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
625 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
626 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
627 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
642 do_sys32_msgsnd (int first, int second, int third, void *uptr)
644 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
651 p = kmalloc (second + sizeof (struct msgbuf)
655 err = get_user (p->mtype, &up->mtype);
658 err |= __copy_from_user (p->mtext, &up->mtext, second);
663 err = sys_msgsnd (first, p, second, third);
672 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
673 int version, void *uptr)
681 struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
682 struct ipc_kludge32 ipck;
688 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
690 uptr = (void *)AA(ipck.msgp);
691 msgtyp = ipck.msgtyp;
697 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
702 err = sys_msgrcv (first, p, second + 4, msgtyp, third);
706 up = (struct msgbuf32 *)uptr;
707 if (put_user (p->mtype, &up->mtype) ||
708 __copy_to_user (&up->mtext, p->mtext, err))
717 do_sys32_msgctl (int first, int second, void *uptr)
719 int err = -EINVAL, err2;
721 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
722 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
725 switch (second & ~IPC_64) {
729 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
733 if (second & IPC_64) {
734 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
738 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
739 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
740 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
741 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
743 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
747 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
748 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
749 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
750 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
756 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
764 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
766 if (second & IPC_64) {
767 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
771 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
772 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
773 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
774 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
775 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
776 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
777 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
778 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
779 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
780 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
781 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
782 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
783 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
784 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
785 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
789 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
793 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
794 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
795 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
796 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
797 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
798 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
799 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
800 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
801 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
802 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
803 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
804 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
805 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
806 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
807 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
818 do_sys32_shmat (int first, int second, int third, int version, void *uptr)
821 u32 *uaddr = (u32 *)A((u32)third);
826 err = do_shmat (first, uptr, second, &raddr);
829 err = put_user (raddr, uaddr);
835 u32 shm_tot, shm_rss, shm_swp;
836 u32 swap_attempts, swap_successes;
840 do_sys32_shmctl (int first, int second, void *uptr)
842 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
843 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
844 struct shm_info32 *uip = (struct shm_info32 *)uptr;
845 int err = -EFAULT, err2;
846 struct shmid64_ds s64;
851 switch (second & ~IPC_64) {
853 second = IPC_INFO; /* So that we don't have to translate it */
857 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
860 if (second & IPC_64) {
861 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
862 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
863 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
865 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
866 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
867 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
873 err = sys_shmctl(first, second & ~IPC_64, &s);
881 err = sys_shmctl(first, second | IPC_64, (void *) &s64);
885 if (second & IPC_64) {
886 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
890 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
891 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
892 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
893 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
894 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
895 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
896 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
897 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
898 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
899 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
900 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
901 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
902 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
903 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
905 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
909 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
910 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
911 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
912 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
913 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
914 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
915 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
916 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
917 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
918 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
919 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
920 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
921 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
922 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
931 err = sys_shmctl(first, second, (void *)&si);
935 err2 = put_user(si.used_ids, &uip->used_ids);
936 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
937 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
938 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
939 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
940 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
953 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
954 const struct compat_timespec *timeout32)
956 struct compat_timespec t32;
957 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
959 if (copy_from_user(&t32, timeout32, sizeof(t32)))
962 if (put_user(t32.tv_sec, &t64->tv_sec) ||
963 put_user(t32.tv_nsec, &t64->tv_nsec))
966 return sys_semtimedop(semid, tsems, nsems, t64);
970 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
974 version = call >> 16; /* hack for backward compatibility */
979 /* struct sembuf is the same on 32 and 64bit :)) */
980 err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
984 err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
985 (const struct compat_timespec __user *)AA(fifth));
988 err = sys_semget (first, second, third);
991 err = do_sys32_semctl (first, second, third,
996 err = do_sys32_msgsnd (first, second, third,
1000 err = do_sys32_msgrcv (first, second, fifth, third,
1001 version, (void *)AA(ptr));
1004 err = sys_msgget ((key_t) first, second);
1007 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
1011 err = do_sys32_shmat (first, second, third,
1012 version, (void *)AA(ptr));
1015 err = sys_shmdt ((char *)A(ptr));
1018 err = sys_shmget (first, (unsigned)second, third);
1021 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
1031 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1032 int shmflg, int32_t *addr)
1034 unsigned long raddr;
1037 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1041 return put_user(raddr, addr);
1044 struct sysctl_args32
1046 compat_caddr_t name;
1048 compat_caddr_t oldval;
1049 compat_caddr_t oldlenp;
1050 compat_caddr_t newval;
1051 compat_size_t newlen;
1052 unsigned int __unused[4];
1055 #ifdef CONFIG_SYSCTL
1057 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1059 struct sysctl_args32 tmp;
1061 size_t oldlen, *oldlenp = NULL;
1062 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1064 if (copy_from_user(&tmp, args, sizeof(tmp)))
1067 if (tmp.oldval && tmp.oldlenp) {
1068 /* Duh, this is ugly and might not work if sysctl_args
1069 is in read-only memory, but do_sysctl does indirectly
1070 a lot of uaccess in both directions and we'd have to
1071 basically copy the whole sysctl.c here, and
1072 glibc's __sysctl uses rw memory for the structure
1074 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1075 put_user(oldlen, (size_t *)addr))
1077 oldlenp = (size_t *)addr;
1081 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1082 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1086 if (get_user(oldlen, (size_t *)addr) ||
1087 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1090 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1095 #endif /* CONFIG_SYSCTL */
1097 asmlinkage long sys32_newuname(struct new_utsname * name)
1101 down_read(&uts_sem);
1102 if (copy_to_user(name,&system_utsname,sizeof *name))
1106 if (current->personality == PER_LINUX32 && !ret)
1107 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1113 asmlinkage int sys32_personality(unsigned long personality)
1116 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1117 personality = PER_LINUX32;
1118 ret = sys_personality(personality);
1119 if (ret == PER_LINUX32)
1124 /* ustat compatibility */
1126 compat_daddr_t f_tfree;
1127 compat_ino_t f_tinode;
1132 extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
1134 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
1138 struct ustat32 tmp32;
1139 mm_segment_t old_fs = get_fs();
1142 err = sys_ustat(dev, &tmp);
1148 memset(&tmp32,0,sizeof(struct ustat32));
1149 tmp32.f_tfree = tmp.f_tfree;
1150 tmp32.f_tinode = tmp.f_tinode;
1152 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1158 /* Handle adjtimex compatibility. */
1162 s32 offset, freq, maxerror, esterror;
1163 s32 status, constant, precision, tolerance;
1164 struct compat_timeval time;
1166 s32 ppsfreq, jitter, shift, stabil;
1167 s32 jitcnt, calcnt, errcnt, stbcnt;
1168 s32 :32; s32 :32; s32 :32; s32 :32;
1169 s32 :32; s32 :32; s32 :32; s32 :32;
1170 s32 :32; s32 :32; s32 :32; s32 :32;
1173 extern int do_adjtimex(struct timex *);
1175 asmlinkage int sys32_adjtimex(struct timex32 *utp)
1180 memset(&txc, 0, sizeof(struct timex));
1182 if (get_user(txc.modes, &utp->modes) ||
1183 __get_user(txc.offset, &utp->offset) ||
1184 __get_user(txc.freq, &utp->freq) ||
1185 __get_user(txc.maxerror, &utp->maxerror) ||
1186 __get_user(txc.esterror, &utp->esterror) ||
1187 __get_user(txc.status, &utp->status) ||
1188 __get_user(txc.constant, &utp->constant) ||
1189 __get_user(txc.precision, &utp->precision) ||
1190 __get_user(txc.tolerance, &utp->tolerance) ||
1191 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1192 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1193 __get_user(txc.tick, &utp->tick) ||
1194 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1195 __get_user(txc.jitter, &utp->jitter) ||
1196 __get_user(txc.shift, &utp->shift) ||
1197 __get_user(txc.stabil, &utp->stabil) ||
1198 __get_user(txc.jitcnt, &utp->jitcnt) ||
1199 __get_user(txc.calcnt, &utp->calcnt) ||
1200 __get_user(txc.errcnt, &utp->errcnt) ||
1201 __get_user(txc.stbcnt, &utp->stbcnt))
1204 ret = do_adjtimex(&txc);
1206 if (put_user(txc.modes, &utp->modes) ||
1207 __put_user(txc.offset, &utp->offset) ||
1208 __put_user(txc.freq, &utp->freq) ||
1209 __put_user(txc.maxerror, &utp->maxerror) ||
1210 __put_user(txc.esterror, &utp->esterror) ||
1211 __put_user(txc.status, &utp->status) ||
1212 __put_user(txc.constant, &utp->constant) ||
1213 __put_user(txc.precision, &utp->precision) ||
1214 __put_user(txc.tolerance, &utp->tolerance) ||
1215 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1216 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1217 __put_user(txc.tick, &utp->tick) ||
1218 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1219 __put_user(txc.jitter, &utp->jitter) ||
1220 __put_user(txc.shift, &utp->shift) ||
1221 __put_user(txc.stabil, &utp->stabil) ||
1222 __put_user(txc.jitcnt, &utp->jitcnt) ||
1223 __put_user(txc.calcnt, &utp->calcnt) ||
1224 __put_user(txc.errcnt, &utp->errcnt) ||
1225 __put_user(txc.stbcnt, &utp->stbcnt))
1231 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
1234 mm_segment_t old_fs = get_fs();
1238 if (offset && get_user(of, offset))
1242 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1245 if (offset && put_user(of, offset))
1251 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1254 return sys_readahead(fd, merge_64(a2, a3), count);
1257 /* Argument list sizes for sys_socketcall */
1258 #define AL(x) ((x) * sizeof(unsigned int))
1259 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1260 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1261 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1265 * System call vectors.
1267 * Argument checking cleaned up. Saved 20% in size.
1268 * This function doesn't need to set the kernel lock because
1269 * it is set by the callees.
1272 asmlinkage long sys32_socketcall(int call, unsigned int *args32)
1278 extern asmlinkage long sys_socket(int family, int type, int protocol);
1279 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1280 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1281 extern asmlinkage long sys_listen(int fd, int backlog);
1282 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1283 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1284 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1285 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1286 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1287 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1288 struct sockaddr __user *addr, int addr_len);
1289 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1290 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1291 struct sockaddr __user *addr, int __user *addr_len);
1292 extern asmlinkage long sys_shutdown(int fd, int how);
1293 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1294 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
1295 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1296 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1299 if(call<1||call>SYS_RECVMSG)
1302 /* copy_from_user should be SMP safe. */
1303 if (copy_from_user(a, args32, socketcall_nargs[call]))
1312 err = sys_socket(a0,a1,a[2]);
1315 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1318 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1321 err = sys_listen(a0,a1);
1324 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1326 case SYS_GETSOCKNAME:
1327 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1329 case SYS_GETPEERNAME:
1330 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1332 case SYS_SOCKETPAIR:
1333 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1336 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1339 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1340 (struct sockaddr __user *)A(a[4]), a[5]);
1343 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1346 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1347 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1350 err = sys_shutdown(a0,a1);
1352 case SYS_SETSOCKOPT:
1353 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1355 case SYS_GETSOCKOPT:
1356 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1359 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1362 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1375 u32 payload[(64 / 4) - 3];
1378 extern asmlinkage long
1379 sys_timer_create(clockid_t which_clock,
1380 struct sigevent __user *timer_event_spec,
1381 timer_t __user * created_timer_id);
1384 sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
1386 struct sigevent __user *p = NULL;
1389 p = compat_alloc_user_space(sizeof(struct sigevent));
1390 memset(&se, 0, sizeof(struct sigevent));
1391 if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
1392 __get_user(se.sigev_signo, &se32->sigev_signo) ||
1393 __get_user(se.sigev_notify, &se32->sigev_notify) ||
1394 __copy_from_user(&se._sigev_un._pad, &se32->payload,
1395 sizeof(se32->payload)) ||
1396 copy_to_user(p, &se, sizeof(se)))
1399 return sys_timer_create(clock, p, timer_id);
1402 save_static_function(sys32_clone);
1403 __attribute_used__ noinline static int
1404 _sys32_clone(nabi_no_regargs struct pt_regs regs)
1406 unsigned long clone_flags;
1407 unsigned long newsp;
1408 int __user *parent_tidptr, *child_tidptr;
1410 clone_flags = regs.regs[4];
1411 newsp = regs.regs[5];
1413 newsp = regs.regs[29];
1414 parent_tidptr = (int *) regs.regs[6];
1416 /* Use __dummy4 instead of getting it off the stack, so that
1418 child_tidptr = (int __user *) __dummy4;
1419 return do_fork(clone_flags, newsp, ®s, 0,
1420 parent_tidptr, child_tidptr);
1423 extern asmlinkage void sys_set_thread_area(u32 addr);
1424 asmlinkage void sys32_set_thread_area(u32 addr)
1426 sys_set_thread_area(AA(addr));