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/compiler.h>
10 #include <linux/errno.h>
11 #include <linux/file.h>
12 #include <linux/smp_lock.h>
13 #include <linux/highuid.h>
14 #include <linux/dirent.h>
15 #include <linux/resource.h>
16 #include <linux/highmem.h>
17 #include <linux/time.h>
18 #include <linux/times.h>
19 #include <linux/poll.h>
20 #include <linux/slab.h>
21 #include <linux/skbuff.h>
22 #include <linux/filter.h>
23 #include <linux/shm.h>
24 #include <linux/sem.h>
25 #include <linux/msg.h>
26 #include <linux/icmpv6.h>
27 #include <linux/syscalls.h>
28 #include <linux/sysctl.h>
29 #include <linux/utime.h>
30 #include <linux/utsname.h>
31 #include <linux/personality.h>
32 #include <linux/dnotify.h>
33 #include <linux/module.h>
34 #include <linux/binfmts.h>
35 #include <linux/security.h>
36 #include <linux/compat.h>
37 #include <linux/vfs.h>
38 #include <linux/vs_cvirt.h>
45 #include <asm/uaccess.h>
46 #include <asm/mmu_context.h>
49 /* Use this to get at 32-bit user passed pointers. */
50 /* A() macro should be used for places where you e.g.
51 have some internal variable u32 and just want to get
52 rid of a compiler warning. AA() has to be used in
53 places where you want to convert a function argument
54 to 32bit pointer or when you e.g. access pt_regs
55 structure and want to consider 32bit registers only.
57 #define A(__x) ((unsigned long)(__x))
58 #define AA(__x) ((unsigned long)((int)__x))
61 #define merge_64(r1,r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL))
64 #define merge_64(r1,r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
68 * Revalidate the inode. This is required for proper NFS attribute caching.
71 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
73 struct compat_stat tmp;
75 if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
78 memset(&tmp, 0, sizeof(tmp));
79 tmp.st_dev = new_encode_dev(stat->dev);
80 tmp.st_ino = stat->ino;
81 if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
83 tmp.st_mode = stat->mode;
84 tmp.st_nlink = stat->nlink;
85 SET_UID(tmp.st_uid, stat->uid);
86 SET_GID(tmp.st_gid, stat->gid);
87 tmp.st_rdev = new_encode_dev(stat->rdev);
88 tmp.st_size = stat->size;
89 tmp.st_atime = stat->atime.tv_sec;
90 tmp.st_mtime = stat->mtime.tv_sec;
91 tmp.st_ctime = stat->ctime.tv_sec;
93 tmp.st_atime_nsec = stat->atime.tv_nsec;
94 tmp.st_mtime_nsec = stat->mtime.tv_nsec;
95 tmp.st_ctime_nsec = stat->ctime.tv_nsec;
97 tmp.st_blocks = stat->blocks;
98 tmp.st_blksize = stat->blksize;
99 return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
102 asmlinkage unsigned long
103 sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
104 unsigned long flags, unsigned long fd, unsigned long pgoff)
106 struct file * file = NULL;
110 if (pgoff & (~PAGE_MASK >> 12))
112 pgoff >>= PAGE_SHIFT-12;
114 if (!(flags & MAP_ANONYMOUS)) {
120 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
122 down_write(¤t->mm->mmap_sem);
123 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
124 up_write(¤t->mm->mmap_sem);
133 asmlinkage int sys_truncate64(const char __user *path, unsigned int high,
138 return sys_truncate(path, ((long) high << 32) | low);
141 asmlinkage int sys_ftruncate64(unsigned int fd, unsigned int high,
146 return sys_ftruncate(fd, ((long) high << 32) | low);
150 * sys_execve() executes a new program.
152 asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
157 filename = getname(compat_ptr(regs.regs[4]));
158 error = PTR_ERR(filename);
159 if (IS_ERR(filename))
161 error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
162 compat_ptr(regs.regs[6]), ®s);
170 sysn32_waitid(int which, compat_pid_t pid,
171 siginfo_t __user *uinfo, int options,
172 struct compat_rusage __user *uru)
176 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 (__get_user(si_signo, &uinfo->si_signo))
189 if (ret < 0 || si_signo == 0)
193 ret = put_compat_rusage(&ru, uru);
213 asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
217 mm_segment_t old_fs = get_fs ();
220 ret = sys_sysinfo((struct sysinfo __user *)&s);
222 err = put_user (s.uptime, &info->uptime);
223 err |= __put_user (s.loads[0], &info->loads[0]);
224 err |= __put_user (s.loads[1], &info->loads[1]);
225 err |= __put_user (s.loads[2], &info->loads[2]);
226 err |= __put_user (s.totalram, &info->totalram);
227 err |= __put_user (s.freeram, &info->freeram);
228 err |= __put_user (s.sharedram, &info->sharedram);
229 err |= __put_user (s.bufferram, &info->bufferram);
230 err |= __put_user (s.totalswap, &info->totalswap);
231 err |= __put_user (s.freeswap, &info->freeswap);
232 err |= __put_user (s.procs, &info->procs);
233 err |= __put_user (s.totalhigh, &info->totalhigh);
234 err |= __put_user (s.freehigh, &info->freehigh);
235 err |= __put_user (s.mem_unit, &info->mem_unit);
241 #define RLIM_INFINITY32 0x7fffffff
242 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
250 asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
251 int length_hi, int length_lo)
254 asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
255 int length_lo, int length_hi)
260 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
262 return sys_truncate(path, length);
266 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
267 int length_hi, int length_lo)
270 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
271 int length_lo, int length_hi)
276 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
278 return sys_ftruncate(fd, length);
282 get_tv32(struct timeval *o, struct compat_timeval __user *i)
284 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
285 (__get_user(o->tv_sec, &i->tv_sec) |
286 __get_user(o->tv_usec, &i->tv_usec)));
290 put_tv32(struct compat_timeval __user *o, struct timeval *i)
292 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
293 (__put_user(i->tv_sec, &o->tv_sec) |
294 __put_user(i->tv_usec, &o->tv_usec)));
297 extern struct timezone sys_tz;
300 sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
304 do_gettimeofday(&ktv);
305 if (put_tv32(tv, &ktv))
309 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
315 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
319 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
321 if (__get_user(o->tv_sec, &i->tv_sec))
323 if (__get_user(usec, &i->tv_usec))
325 o->tv_nsec = usec * 1000;
330 sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
336 if (get_ts32(&kts, tv))
340 if (copy_from_user(&ktz, tz, sizeof(ktz)))
344 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
347 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
348 unsigned int offset_low, loff_t __user * result,
351 return sys_llseek(fd, offset_high, offset_low, result, origin);
354 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
355 lseek back to original location. They fail just like lseek does on
356 non-seekable files. */
358 asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
359 size_t count, u32 unused, u64 a4, u64 a5)
361 return sys_pread64(fd, buf, count, merge_64(a4, a5));
364 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
365 size_t count, u32 unused, u64 a4, u64 a5)
367 return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
370 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
371 struct compat_timespec __user *interval)
375 mm_segment_t old_fs = get_fs ();
378 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
380 if (put_user (t.tv_sec, &interval->tv_sec) ||
381 __put_user (t.tv_nsec, &interval->tv_nsec))
386 struct msgbuf32 { s32 mtype; char mtext[1]; };
399 struct ipc64_perm32 {
407 unsigned short __pad1;
408 unsigned int __unused1;
409 unsigned int __unused2;
413 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
414 compat_time_t sem_otime; /* last semop time */
415 compat_time_t sem_ctime; /* last change time */
416 u32 sem_base; /* ptr to first semaphore in array */
417 u32 sem_pending; /* pending operations to be processed */
418 u32 sem_pending_last; /* last pending operation */
419 u32 undo; /* undo requests on this array */
420 unsigned short sem_nsems; /* no. of semaphores in array */
423 struct semid64_ds32 {
424 struct ipc64_perm32 sem_perm;
425 compat_time_t sem_otime;
426 compat_time_t sem_ctime;
427 unsigned int sem_nsems;
428 unsigned int __unused1;
429 unsigned int __unused2;
434 struct ipc_perm32 msg_perm;
437 compat_time_t msg_stime;
438 compat_time_t msg_rtime;
439 compat_time_t msg_ctime;
442 unsigned short msg_cbytes;
443 unsigned short msg_qnum;
444 unsigned short msg_qbytes;
445 compat_ipc_pid_t msg_lspid;
446 compat_ipc_pid_t msg_lrpid;
449 struct msqid64_ds32 {
450 struct ipc64_perm32 msg_perm;
451 compat_time_t msg_stime;
452 unsigned int __unused1;
453 compat_time_t msg_rtime;
454 unsigned int __unused2;
455 compat_time_t msg_ctime;
456 unsigned int __unused3;
457 unsigned int msg_cbytes;
458 unsigned int msg_qnum;
459 unsigned int msg_qbytes;
460 compat_pid_t msg_lspid;
461 compat_pid_t msg_lrpid;
462 unsigned int __unused4;
463 unsigned int __unused5;
467 struct ipc_perm32 shm_perm;
469 compat_time_t shm_atime;
470 compat_time_t shm_dtime;
471 compat_time_t shm_ctime;
472 compat_ipc_pid_t shm_cpid;
473 compat_ipc_pid_t shm_lpid;
474 unsigned short shm_nattch;
477 struct shmid64_ds32 {
478 struct ipc64_perm32 shm_perm;
479 compat_size_t shm_segsz;
480 compat_time_t shm_atime;
481 compat_time_t shm_dtime;
482 compat_time_t shm_ctime;
483 compat_pid_t shm_cpid;
484 compat_pid_t shm_lpid;
485 unsigned int shm_nattch;
486 unsigned int __unused1;
487 unsigned int __unused2;
490 struct ipc_kludge32 {
496 do_sys32_semctl(int first, int second, int third, void __user *uptr)
507 if (get_user (pad, (u32 __user *)uptr))
509 if ((third & ~IPC_64) == SETVAL)
510 fourth.val = (int)pad;
512 fourth.__pad = (void __user *)A(pad);
513 switch (third & ~IPC_64) {
525 err = sys_semctl (first, second, third, fourth);
530 fourth.__pad = (struct semid64_ds __user *)&s;
533 err = sys_semctl(first, second, third | IPC_64, fourth);
536 if (third & IPC_64) {
537 struct semid64_ds32 __user *usp64 = (struct semid64_ds32 __user *) A(pad);
539 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
543 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
544 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
545 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
546 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
547 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
548 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
549 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
550 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
551 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
552 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
554 struct semid_ds32 __user *usp32 = (struct semid_ds32 __user *) A(pad);
556 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
560 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
561 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
562 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
563 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
564 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
565 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
566 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
567 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
568 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
569 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
584 do_sys32_msgsnd (int first, int second, int third, void __user *uptr)
586 struct msgbuf32 __user *up = (struct msgbuf32 __user *)uptr;
593 p = kmalloc (second + sizeof (struct msgbuf)
597 err = get_user (p->mtype, &up->mtype);
600 err |= __copy_from_user (p->mtext, &up->mtext, second);
605 err = sys_msgsnd (first, (struct msgbuf __user *)p, second, third);
614 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
615 int version, void __user *uptr)
617 struct msgbuf32 __user *up;
623 struct ipc_kludge32 __user *uipck = (struct ipc_kludge32 __user *)uptr;
624 struct ipc_kludge32 ipck;
630 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
632 uptr = (void __user *)AA(ipck.msgp);
633 msgtyp = ipck.msgtyp;
639 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
644 err = sys_msgrcv (first, (struct msgbuf __user *)p, second + 4, msgtyp, third);
648 up = (struct msgbuf32 __user *)uptr;
649 if (put_user (p->mtype, &up->mtype) ||
650 __copy_to_user (&up->mtext, p->mtext, err))
659 do_sys32_msgctl (int first, int second, void __user *uptr)
661 int err = -EINVAL, err2;
663 struct msqid_ds32 __user *up32 = (struct msqid_ds32 __user *)uptr;
664 struct msqid64_ds32 __user *up64 = (struct msqid64_ds32 __user *)uptr;
667 switch (second & ~IPC_64) {
671 err = sys_msgctl (first, second, (struct msqid_ds __user *)uptr);
675 if (second & IPC_64) {
676 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
680 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
681 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
682 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
683 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
685 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
689 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
690 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
691 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
692 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
698 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
706 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
708 if (second & IPC_64) {
709 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
713 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
714 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
715 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
716 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
717 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
718 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
719 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
720 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
721 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
722 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
723 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
724 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
725 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
726 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
727 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
731 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
735 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
736 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
737 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
738 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
739 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
740 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
741 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
742 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
743 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
744 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
745 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
746 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
747 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
748 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
749 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
760 do_sys32_shmat (int first, int second, int third, int version, void __user *uptr)
763 u32 __user *uaddr = (u32 __user *)A((u32)third);
768 err = do_shmat (first, uptr, second, &raddr);
771 err = put_user (raddr, uaddr);
777 u32 shm_tot, shm_rss, shm_swp;
778 u32 swap_attempts, swap_successes;
782 do_sys32_shmctl (int first, int second, void __user *uptr)
784 struct shmid64_ds32 __user *up64 = (struct shmid64_ds32 __user *)uptr;
785 struct shmid_ds32 __user *up32 = (struct shmid_ds32 __user *)uptr;
786 struct shm_info32 __user *uip = (struct shm_info32 __user *)uptr;
787 int err = -EFAULT, err2;
788 struct shmid64_ds s64;
793 switch (second & ~IPC_64) {
795 second = IPC_INFO; /* So that we don't have to translate it */
799 err = sys_shmctl(first, second, (struct shmid_ds __user *)uptr);
802 if (second & IPC_64) {
803 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
804 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
805 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
807 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
808 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
809 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
815 err = sys_shmctl(first, second & ~IPC_64, (struct shmid_ds __user *)&s);
823 err = sys_shmctl(first, second | IPC_64, (void __user *) &s64);
827 if (second & IPC_64) {
828 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
832 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
833 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
834 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
835 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
836 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
837 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
838 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
839 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
840 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
841 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
842 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
843 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
844 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
845 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
847 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
851 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
852 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
853 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
854 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
855 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
856 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
857 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
858 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
859 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
860 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
861 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
862 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
863 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
864 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
873 err = sys_shmctl(first, second, (void __user *)&si);
877 err2 = put_user(si.used_ids, &uip->used_ids);
878 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
879 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
880 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
881 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
882 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
895 static int sys32_semtimedop(int semid, struct sembuf __user *tsems, int nsems,
896 const struct compat_timespec __user *timeout32)
898 struct compat_timespec t32;
899 struct timespec __user *t64 = compat_alloc_user_space(sizeof(*t64));
901 if (copy_from_user(&t32, timeout32, sizeof(t32)))
904 if (put_user(t32.tv_sec, &t64->tv_sec) ||
905 put_user(t32.tv_nsec, &t64->tv_nsec))
908 return sys_semtimedop(semid, tsems, nsems, t64);
912 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
916 version = call >> 16; /* hack for backward compatibility */
921 /* struct sembuf is the same on 32 and 64bit :)) */
922 err = sys_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
926 err = sys32_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
927 (const struct compat_timespec __user *)AA(fifth));
930 err = sys_semget (first, second, third);
933 err = do_sys32_semctl (first, second, third,
934 (void __user *)AA(ptr));
938 err = do_sys32_msgsnd (first, second, third,
939 (void __user *)AA(ptr));
942 err = do_sys32_msgrcv (first, second, fifth, third,
943 version, (void __user *)AA(ptr));
946 err = sys_msgget ((key_t) first, second);
949 err = do_sys32_msgctl (first, second, (void __user *)AA(ptr));
953 err = do_sys32_shmat (first, second, third,
954 version, (void __user *)AA(ptr));
957 err = sys_shmdt ((char __user *)A(ptr));
960 err = sys_shmget (first, (unsigned)second, third);
963 err = do_sys32_shmctl (first, second, (void __user *)AA(ptr));
973 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
974 int shmflg, int32_t __user *addr)
979 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
983 return put_user(raddr, addr);
990 compat_caddr_t oldval;
991 compat_caddr_t oldlenp;
992 compat_caddr_t newval;
993 compat_size_t newlen;
994 unsigned int __unused[4];
999 asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
1001 struct sysctl_args32 tmp;
1004 size_t __user *oldlenp = NULL;
1005 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
1007 if (copy_from_user(&tmp, args, sizeof(tmp)))
1010 if (tmp.oldval && tmp.oldlenp) {
1011 /* Duh, this is ugly and might not work if sysctl_args
1012 is in read-only memory, but do_sysctl does indirectly
1013 a lot of uaccess in both directions and we'd have to
1014 basically copy the whole sysctl.c here, and
1015 glibc's __sysctl uses rw memory for the structure
1017 if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) ||
1018 put_user(oldlen, (size_t __user *)addr))
1020 oldlenp = (size_t __user *)addr;
1024 error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval),
1025 oldlenp, (void __user *)A(tmp.newval), tmp.newlen);
1029 if (get_user(oldlen, (size_t __user *)addr) ||
1030 put_user(oldlen, (u32 __user *)A(tmp.oldlenp)))
1033 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1038 #endif /* CONFIG_SYSCTL */
1040 asmlinkage long sys32_newuname(struct new_utsname __user * name)
1044 down_read(&uts_sem);
1045 if (copy_to_user(name, vx_new_utsname(), sizeof *name))
1049 if (current->personality == PER_LINUX32 && !ret)
1050 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1056 asmlinkage int sys32_personality(unsigned long personality)
1059 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1060 personality = PER_LINUX32;
1061 ret = sys_personality(personality);
1062 if (ret == PER_LINUX32)
1067 /* ustat compatibility */
1069 compat_daddr_t f_tfree;
1070 compat_ino_t f_tinode;
1075 extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
1077 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
1081 struct ustat32 tmp32;
1082 mm_segment_t old_fs = get_fs();
1085 err = sys_ustat(dev, (struct ustat __user *)&tmp);
1091 memset(&tmp32,0,sizeof(struct ustat32));
1092 tmp32.f_tfree = tmp.f_tfree;
1093 tmp32.f_tinode = tmp.f_tinode;
1095 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1101 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
1104 mm_segment_t old_fs = get_fs();
1108 if (offset && get_user(of, offset))
1112 ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
1115 if (offset && put_user(of, offset))
1121 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1124 return sys_readahead(fd, merge_64(a2, a3), count);
1127 asmlinkage long sys32_sync_file_range(int fd, int __pad,
1128 unsigned long a2, unsigned long a3,
1129 unsigned long a4, unsigned long a5,
1132 return sys_sync_file_range(fd,
1133 merge_64(a2, a3), merge_64(a4, a5),
1137 /* Argument list sizes for sys_socketcall */
1138 #define AL(x) ((x) * sizeof(unsigned int))
1139 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1140 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1141 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1145 * System call vectors.
1147 * Argument checking cleaned up. Saved 20% in size.
1148 * This function doesn't need to set the kernel lock because
1149 * it is set by the callees.
1152 asmlinkage long sys32_socketcall(int call, unsigned int __user *args32)
1158 extern asmlinkage long sys_socket(int family, int type, int protocol);
1159 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1160 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1161 extern asmlinkage long sys_listen(int fd, int backlog);
1162 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1163 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1164 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1165 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1166 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1167 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1168 struct sockaddr __user *addr, int addr_len);
1169 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1170 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1171 struct sockaddr __user *addr, int __user *addr_len);
1172 extern asmlinkage long sys_shutdown(int fd, int how);
1173 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1174 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen);
1175 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1176 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1179 if(call<1||call>SYS_RECVMSG)
1182 /* copy_from_user should be SMP safe. */
1183 if (copy_from_user(a, args32, socketcall_nargs[call]))
1192 err = sys_socket(a0,a1,a[2]);
1195 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1198 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1201 err = sys_listen(a0,a1);
1204 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1206 case SYS_GETSOCKNAME:
1207 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1209 case SYS_GETPEERNAME:
1210 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1212 case SYS_SOCKETPAIR:
1213 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1216 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1219 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1220 (struct sockaddr __user *)A(a[4]), a[5]);
1223 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1226 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1227 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1230 err = sys_shutdown(a0,a1);
1232 case SYS_SETSOCKOPT:
1233 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1235 case SYS_GETSOCKOPT:
1236 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1239 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1242 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1255 u32 payload[(64 / 4) - 3];
1258 extern asmlinkage long
1259 sys_timer_create(clockid_t which_clock,
1260 struct sigevent __user *timer_event_spec,
1261 timer_t __user * created_timer_id);
1264 sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
1266 struct sigevent __user *p = NULL;
1269 p = compat_alloc_user_space(sizeof(struct sigevent));
1270 memset(&se, 0, sizeof(struct sigevent));
1271 if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
1272 __get_user(se.sigev_signo, &se32->sigev_signo) ||
1273 __get_user(se.sigev_notify, &se32->sigev_notify) ||
1274 __copy_from_user(&se._sigev_un._pad, &se32->payload,
1275 sizeof(se32->payload)) ||
1276 copy_to_user(p, &se, sizeof(se)))
1279 return sys_timer_create(clock, p, timer_id);
1282 save_static_function(sys32_clone);
1283 __attribute_used__ noinline static int
1284 _sys32_clone(nabi_no_regargs struct pt_regs regs)
1286 unsigned long clone_flags;
1287 unsigned long newsp;
1288 int __user *parent_tidptr, *child_tidptr;
1290 clone_flags = regs.regs[4];
1291 newsp = regs.regs[5];
1293 newsp = regs.regs[29];
1294 parent_tidptr = (int __user *) regs.regs[6];
1296 /* Use __dummy4 instead of getting it off the stack, so that
1298 child_tidptr = (int __user *) __dummy4;
1299 return do_fork(clone_flags, newsp, ®s, 0,
1300 parent_tidptr, child_tidptr);
1303 extern asmlinkage void sys_set_thread_area(u32 addr);
1304 asmlinkage void sys32_set_thread_area(u32 addr)
1306 sys_set_thread_area(AA(addr));