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);
167 unsigned short d_reclen;
168 char d_name[NAME_MAX + 1];
172 xlate_dirent(void *dirent64, void *dirent32, long n)
176 struct dirent32 *dirp32;
180 dirp = (struct dirent *)(dirent64 + off);
181 dirp32 = (struct dirent32 *)(dirent32 + off);
182 off += dirp->d_reclen;
183 dirp32->d_ino = dirp->d_ino;
184 dirp32->d_off = (unsigned int)dirp->d_off;
185 dirp32->d_reclen = dirp->d_reclen;
186 strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
192 sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
197 dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
198 if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
200 xlate_dirent(dirent64, dirent32, n);
204 asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
207 sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
210 struct dirent dirent64;
212 if ((n = old_readdir(fd, &dirent64, count)) < 0)
214 xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
219 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
221 return compat_sys_wait4(pid, stat_addr, options, NULL);
240 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
244 mm_segment_t old_fs = get_fs ();
247 ret = sys_sysinfo(&s);
249 err = put_user (s.uptime, &info->uptime);
250 err |= __put_user (s.loads[0], &info->loads[0]);
251 err |= __put_user (s.loads[1], &info->loads[1]);
252 err |= __put_user (s.loads[2], &info->loads[2]);
253 err |= __put_user (s.totalram, &info->totalram);
254 err |= __put_user (s.freeram, &info->freeram);
255 err |= __put_user (s.sharedram, &info->sharedram);
256 err |= __put_user (s.bufferram, &info->bufferram);
257 err |= __put_user (s.totalswap, &info->totalswap);
258 err |= __put_user (s.freeswap, &info->freeswap);
259 err |= __put_user (s.procs, &info->procs);
260 err |= __put_user (s.totalhigh, &info->totalhigh);
261 err |= __put_user (s.freehigh, &info->freehigh);
262 err |= __put_user (s.mem_unit, &info->mem_unit);
268 #define RLIM_INFINITY32 0x7fffffff
269 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
277 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
278 int length_hi, int length_lo)
281 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
282 int length_lo, int length_hi)
287 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
289 return sys_truncate(path, length);
293 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
294 int length_hi, int length_lo)
297 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
298 int length_lo, int length_hi)
303 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
305 return sys_ftruncate(fd, length);
309 get_tv32(struct timeval *o, struct compat_timeval *i)
311 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
312 (__get_user(o->tv_sec, &i->tv_sec) |
313 __get_user(o->tv_usec, &i->tv_usec)));
317 put_tv32(struct compat_timeval *o, struct timeval *i)
319 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
320 (__put_user(i->tv_sec, &o->tv_sec) |
321 __put_user(i->tv_usec, &o->tv_usec)));
324 extern struct timezone sys_tz;
327 sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
331 do_gettimeofday(&ktv);
332 if (put_tv32(tv, &ktv))
336 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
342 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
346 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
348 if (__get_user(o->tv_sec, &i->tv_sec))
350 if (__get_user(usec, &i->tv_usec))
352 o->tv_nsec = usec * 1000;
357 sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
363 if (get_ts32(&kts, tv))
367 if (copy_from_user(&ktz, tz, sizeof(ktz)))
371 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
374 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
375 unsigned int offset_low, loff_t * result,
378 return sys_llseek(fd, offset_high, offset_low, result, origin);
381 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
382 lseek back to original location. They fail just like lseek does on
383 non-seekable files. */
385 asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
386 size_t count, u32 unused, u64 a4, u64 a5)
390 ssize_t (*read)(struct file *, char *, size_t, loff_t *);
397 if (!(file->f_mode & FMODE_READ))
399 pos = merge_64(a4, a5);
400 ret = rw_verify_area(READ, file, &pos, count);
404 if (!file->f_op || !(read = file->f_op->read))
409 if (!(file->f_mode & FMODE_PREAD))
411 ret = read(file, buf, count, &pos);
413 dnotify_parent(file->f_dentry, DN_ACCESS);
420 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
421 size_t count, u32 unused, u64 a4, u64 a5)
425 ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
432 if (!(file->f_mode & FMODE_WRITE))
434 pos = merge_64(a4, a5);
435 ret = rw_verify_area(WRITE, file, &pos, count);
439 if (!file->f_op || !(write = file->f_op->write))
445 if (!(file->f_mode & FMODE_PWRITE))
448 ret = write(file, buf, count, &pos);
450 dnotify_parent(file->f_dentry, DN_MODIFY);
457 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
458 struct compat_timespec *interval)
462 mm_segment_t old_fs = get_fs ();
465 ret = sys_sched_rr_get_interval(pid, &t);
467 if (put_user (t.tv_sec, &interval->tv_sec) ||
468 __put_user (t.tv_nsec, &interval->tv_nsec))
473 struct msgbuf32 { s32 mtype; char mtext[1]; };
486 struct ipc64_perm32 {
494 unsigned short __pad1;
495 unsigned int __unused1;
496 unsigned int __unused2;
500 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
501 compat_time_t sem_otime; /* last semop time */
502 compat_time_t sem_ctime; /* last change time */
503 u32 sem_base; /* ptr to first semaphore in array */
504 u32 sem_pending; /* pending operations to be processed */
505 u32 sem_pending_last; /* last pending operation */
506 u32 undo; /* undo requests on this array */
507 unsigned short sem_nsems; /* no. of semaphores in array */
510 struct semid64_ds32 {
511 struct ipc64_perm32 sem_perm;
512 compat_time_t sem_otime;
513 compat_time_t sem_ctime;
514 unsigned int sem_nsems;
515 unsigned int __unused1;
516 unsigned int __unused2;
521 struct ipc_perm32 msg_perm;
524 compat_time_t msg_stime;
525 compat_time_t msg_rtime;
526 compat_time_t msg_ctime;
529 unsigned short msg_cbytes;
530 unsigned short msg_qnum;
531 unsigned short msg_qbytes;
532 compat_ipc_pid_t msg_lspid;
533 compat_ipc_pid_t msg_lrpid;
536 struct msqid64_ds32 {
537 struct ipc64_perm32 msg_perm;
538 compat_time_t msg_stime;
539 unsigned int __unused1;
540 compat_time_t msg_rtime;
541 unsigned int __unused2;
542 compat_time_t msg_ctime;
543 unsigned int __unused3;
544 unsigned int msg_cbytes;
545 unsigned int msg_qnum;
546 unsigned int msg_qbytes;
547 compat_pid_t msg_lspid;
548 compat_pid_t msg_lrpid;
549 unsigned int __unused4;
550 unsigned int __unused5;
554 struct ipc_perm32 shm_perm;
556 compat_time_t shm_atime;
557 compat_time_t shm_dtime;
558 compat_time_t shm_ctime;
559 compat_ipc_pid_t shm_cpid;
560 compat_ipc_pid_t shm_lpid;
561 unsigned short shm_nattch;
564 struct shmid64_ds32 {
565 struct ipc64_perm32 shm_perm;
566 compat_size_t shm_segsz;
567 compat_time_t shm_atime;
568 compat_time_t shm_dtime;
569 compat_time_t shm_ctime;
570 compat_pid_t shm_cpid;
571 compat_pid_t shm_lpid;
572 unsigned int shm_nattch;
573 unsigned int __unused1;
574 unsigned int __unused2;
577 struct ipc_kludge32 {
583 do_sys32_semctl(int first, int second, int third, void *uptr)
594 if (get_user (pad, (u32 *)uptr))
596 if ((third & ~IPC_64) == SETVAL)
597 fourth.val = (int)pad;
599 fourth.__pad = (void *)A(pad);
600 switch (third & ~IPC_64) {
612 err = sys_semctl (first, second, third, fourth);
620 err = sys_semctl(first, second, third | IPC_64, fourth);
623 if (third & IPC_64) {
624 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
626 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
630 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
631 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
632 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
633 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
634 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
635 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
636 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
637 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
638 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
639 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
641 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
643 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
647 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
648 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
649 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
650 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
651 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
652 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
653 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
654 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
655 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
656 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
671 do_sys32_msgsnd (int first, int second, int third, void *uptr)
673 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
680 p = kmalloc (second + sizeof (struct msgbuf)
684 err = get_user (p->mtype, &up->mtype);
687 err |= __copy_from_user (p->mtext, &up->mtext, second);
692 err = sys_msgsnd (first, p, second, third);
701 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
702 int version, void *uptr)
710 struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
711 struct ipc_kludge32 ipck;
717 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
719 uptr = (void *)AA(ipck.msgp);
720 msgtyp = ipck.msgtyp;
726 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
731 err = sys_msgrcv (first, p, second + 4, msgtyp, third);
735 up = (struct msgbuf32 *)uptr;
736 if (put_user (p->mtype, &up->mtype) ||
737 __copy_to_user (&up->mtext, p->mtext, err))
746 do_sys32_msgctl (int first, int second, void *uptr)
748 int err = -EINVAL, err2;
750 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
751 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
754 switch (second & ~IPC_64) {
758 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
762 if (second & IPC_64) {
763 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
767 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
768 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
769 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
770 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
772 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
776 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
777 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
778 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
779 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
785 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
793 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
795 if (second & IPC_64) {
796 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
800 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
801 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
802 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
803 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
804 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
805 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
806 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
807 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
808 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
809 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
810 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
811 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
812 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
813 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
814 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
818 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
822 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
823 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
824 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
825 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
826 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
827 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
828 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
829 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
830 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
831 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
832 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
833 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
834 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
835 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
836 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
847 do_sys32_shmat (int first, int second, int third, int version, void *uptr)
850 u32 *uaddr = (u32 *)A((u32)third);
855 err = do_shmat (first, uptr, second, &raddr);
858 err = put_user (raddr, uaddr);
864 u32 shm_tot, shm_rss, shm_swp;
865 u32 swap_attempts, swap_successes;
869 do_sys32_shmctl (int first, int second, void *uptr)
871 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
872 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
873 struct shm_info32 *uip = (struct shm_info32 *)uptr;
874 int err = -EFAULT, err2;
875 struct shmid64_ds s64;
880 switch (second & ~IPC_64) {
882 second = IPC_INFO; /* So that we don't have to translate it */
886 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
889 if (second & IPC_64) {
890 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
891 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
892 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
894 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
895 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
896 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
902 err = sys_shmctl(first, second & ~IPC_64, &s);
910 err = sys_shmctl(first, second | IPC_64, (void *) &s64);
914 if (second & IPC_64) {
915 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
919 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
920 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
921 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
922 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
923 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
924 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
925 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
926 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
927 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
928 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
929 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
930 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
931 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
932 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
934 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
938 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
939 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
940 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
941 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
942 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
943 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
944 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
945 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
946 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
947 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
948 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
949 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
950 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
951 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
960 err = sys_shmctl(first, second, (void *)&si);
964 err2 = put_user(si.used_ids, &uip->used_ids);
965 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
966 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
967 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
968 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
969 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
982 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
983 const struct compat_timespec *timeout32)
985 struct compat_timespec t32;
986 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
988 if (copy_from_user(&t32, timeout32, sizeof(t32)))
991 if (put_user(t32.tv_sec, &t64->tv_sec) ||
992 put_user(t32.tv_nsec, &t64->tv_nsec))
995 return sys_semtimedop(semid, tsems, nsems, t64);
999 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
1003 version = call >> 16; /* hack for backward compatibility */
1008 /* struct sembuf is the same on 32 and 64bit :)) */
1009 err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
1013 err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
1014 (const struct compat_timespec __user *)AA(fifth));
1017 err = sys_semget (first, second, third);
1020 err = do_sys32_semctl (first, second, third,
1025 err = do_sys32_msgsnd (first, second, third,
1029 err = do_sys32_msgrcv (first, second, fifth, third,
1030 version, (void *)AA(ptr));
1033 err = sys_msgget ((key_t) first, second);
1036 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
1040 err = do_sys32_shmat (first, second, third,
1041 version, (void *)AA(ptr));
1044 err = sys_shmdt ((char *)A(ptr));
1047 err = sys_shmget (first, (unsigned)second, third);
1050 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
1060 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1061 int shmflg, int32_t *addr)
1063 unsigned long raddr;
1066 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1070 return put_user(raddr, addr);
1073 struct sysctl_args32
1075 compat_caddr_t name;
1077 compat_caddr_t oldval;
1078 compat_caddr_t oldlenp;
1079 compat_caddr_t newval;
1080 compat_size_t newlen;
1081 unsigned int __unused[4];
1084 #ifdef CONFIG_SYSCTL
1086 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1088 struct sysctl_args32 tmp;
1090 size_t oldlen, *oldlenp = NULL;
1091 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1093 if (copy_from_user(&tmp, args, sizeof(tmp)))
1096 if (tmp.oldval && tmp.oldlenp) {
1097 /* Duh, this is ugly and might not work if sysctl_args
1098 is in read-only memory, but do_sysctl does indirectly
1099 a lot of uaccess in both directions and we'd have to
1100 basically copy the whole sysctl.c here, and
1101 glibc's __sysctl uses rw memory for the structure
1103 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1104 put_user(oldlen, (size_t *)addr))
1106 oldlenp = (size_t *)addr;
1110 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1111 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1115 if (get_user(oldlen, (size_t *)addr) ||
1116 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1119 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1124 #endif /* CONFIG_SYSCTL */
1126 asmlinkage long sys32_newuname(struct new_utsname * name)
1130 down_read(&uts_sem);
1131 if (copy_to_user(name,&system_utsname,sizeof *name))
1135 if (current->personality == PER_LINUX32 && !ret)
1136 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1142 asmlinkage int sys32_personality(unsigned long personality)
1145 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1146 personality = PER_LINUX32;
1147 ret = sys_personality(personality);
1148 if (ret == PER_LINUX32)
1153 /* ustat compatibility */
1155 compat_daddr_t f_tfree;
1156 compat_ino_t f_tinode;
1161 extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
1163 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
1167 struct ustat32 tmp32;
1168 mm_segment_t old_fs = get_fs();
1171 err = sys_ustat(dev, &tmp);
1177 memset(&tmp32,0,sizeof(struct ustat32));
1178 tmp32.f_tfree = tmp.f_tfree;
1179 tmp32.f_tinode = tmp.f_tinode;
1181 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1187 /* Handle adjtimex compatibility. */
1191 s32 offset, freq, maxerror, esterror;
1192 s32 status, constant, precision, tolerance;
1193 struct compat_timeval time;
1195 s32 ppsfreq, jitter, shift, stabil;
1196 s32 jitcnt, calcnt, errcnt, stbcnt;
1197 s32 :32; s32 :32; s32 :32; s32 :32;
1198 s32 :32; s32 :32; s32 :32; s32 :32;
1199 s32 :32; s32 :32; s32 :32; s32 :32;
1202 extern int do_adjtimex(struct timex *);
1204 asmlinkage int sys32_adjtimex(struct timex32 *utp)
1209 memset(&txc, 0, sizeof(struct timex));
1211 if (get_user(txc.modes, &utp->modes) ||
1212 __get_user(txc.offset, &utp->offset) ||
1213 __get_user(txc.freq, &utp->freq) ||
1214 __get_user(txc.maxerror, &utp->maxerror) ||
1215 __get_user(txc.esterror, &utp->esterror) ||
1216 __get_user(txc.status, &utp->status) ||
1217 __get_user(txc.constant, &utp->constant) ||
1218 __get_user(txc.precision, &utp->precision) ||
1219 __get_user(txc.tolerance, &utp->tolerance) ||
1220 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1221 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1222 __get_user(txc.tick, &utp->tick) ||
1223 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1224 __get_user(txc.jitter, &utp->jitter) ||
1225 __get_user(txc.shift, &utp->shift) ||
1226 __get_user(txc.stabil, &utp->stabil) ||
1227 __get_user(txc.jitcnt, &utp->jitcnt) ||
1228 __get_user(txc.calcnt, &utp->calcnt) ||
1229 __get_user(txc.errcnt, &utp->errcnt) ||
1230 __get_user(txc.stbcnt, &utp->stbcnt))
1233 ret = do_adjtimex(&txc);
1235 if (put_user(txc.modes, &utp->modes) ||
1236 __put_user(txc.offset, &utp->offset) ||
1237 __put_user(txc.freq, &utp->freq) ||
1238 __put_user(txc.maxerror, &utp->maxerror) ||
1239 __put_user(txc.esterror, &utp->esterror) ||
1240 __put_user(txc.status, &utp->status) ||
1241 __put_user(txc.constant, &utp->constant) ||
1242 __put_user(txc.precision, &utp->precision) ||
1243 __put_user(txc.tolerance, &utp->tolerance) ||
1244 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1245 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1246 __put_user(txc.tick, &utp->tick) ||
1247 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1248 __put_user(txc.jitter, &utp->jitter) ||
1249 __put_user(txc.shift, &utp->shift) ||
1250 __put_user(txc.stabil, &utp->stabil) ||
1251 __put_user(txc.jitcnt, &utp->jitcnt) ||
1252 __put_user(txc.calcnt, &utp->calcnt) ||
1253 __put_user(txc.errcnt, &utp->errcnt) ||
1254 __put_user(txc.stbcnt, &utp->stbcnt))
1260 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
1263 mm_segment_t old_fs = get_fs();
1267 if (offset && get_user(of, offset))
1271 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1274 if (offset && put_user(of, offset))
1280 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1283 return sys_readahead(fd, merge_64(a2, a3), count);
1286 /* Argument list sizes for sys_socketcall */
1287 #define AL(x) ((x) * sizeof(unsigned int))
1288 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1289 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1290 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1294 * System call vectors.
1296 * Argument checking cleaned up. Saved 20% in size.
1297 * This function doesn't need to set the kernel lock because
1298 * it is set by the callees.
1301 asmlinkage long sys32_socketcall(int call, unsigned int *args32)
1307 extern asmlinkage long sys_socket(int family, int type, int protocol);
1308 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1309 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1310 extern asmlinkage long sys_listen(int fd, int backlog);
1311 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1312 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1313 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1314 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1315 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1316 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1317 struct sockaddr __user *addr, int addr_len);
1318 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1319 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1320 struct sockaddr __user *addr, int __user *addr_len);
1321 extern asmlinkage long sys_shutdown(int fd, int how);
1322 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1323 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
1324 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1325 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1328 if(call<1||call>SYS_RECVMSG)
1331 /* copy_from_user should be SMP safe. */
1332 if (copy_from_user(a, args32, socketcall_nargs[call]))
1341 err = sys_socket(a0,a1,a[2]);
1344 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1347 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1350 err = sys_listen(a0,a1);
1353 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1355 case SYS_GETSOCKNAME:
1356 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1358 case SYS_GETPEERNAME:
1359 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1361 case SYS_SOCKETPAIR:
1362 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1365 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1368 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1369 (struct sockaddr __user *)A(a[4]), a[5]);
1372 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1375 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1376 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1379 err = sys_shutdown(a0,a1);
1381 case SYS_SETSOCKOPT:
1382 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1384 case SYS_GETSOCKOPT:
1385 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1388 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1391 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);