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, size_t 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 struct compat_timeval ru_utime;
220 struct compat_timeval ru_stime;
238 put_rusage (struct rusage32 *ru, struct rusage *r)
242 if (verify_area(VERIFY_WRITE, ru, sizeof *ru))
245 err = __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
246 err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
247 err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
248 err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
249 err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
250 err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
251 err |= __put_user (r->ru_idrss, &ru->ru_idrss);
252 err |= __put_user (r->ru_isrss, &ru->ru_isrss);
253 err |= __put_user (r->ru_minflt, &ru->ru_minflt);
254 err |= __put_user (r->ru_majflt, &ru->ru_majflt);
255 err |= __put_user (r->ru_nswap, &ru->ru_nswap);
256 err |= __put_user (r->ru_inblock, &ru->ru_inblock);
257 err |= __put_user (r->ru_oublock, &ru->ru_oublock);
258 err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
259 err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
260 err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
261 err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
262 err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
268 sys32_wait4(compat_pid_t pid, unsigned int * stat_addr, int options,
269 struct rusage32 * ru)
272 return sys_wait4(pid, stat_addr, options, NULL);
277 mm_segment_t old_fs = get_fs();
280 ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
282 if (put_rusage (ru, &r)) return -EFAULT;
283 if (stat_addr && put_user (status, stat_addr))
290 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
292 return sys32_wait4(pid, stat_addr, options, NULL);
311 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
315 mm_segment_t old_fs = get_fs ();
318 ret = sys_sysinfo(&s);
320 err = put_user (s.uptime, &info->uptime);
321 err |= __put_user (s.loads[0], &info->loads[0]);
322 err |= __put_user (s.loads[1], &info->loads[1]);
323 err |= __put_user (s.loads[2], &info->loads[2]);
324 err |= __put_user (s.totalram, &info->totalram);
325 err |= __put_user (s.freeram, &info->freeram);
326 err |= __put_user (s.sharedram, &info->sharedram);
327 err |= __put_user (s.bufferram, &info->bufferram);
328 err |= __put_user (s.totalswap, &info->totalswap);
329 err |= __put_user (s.freeswap, &info->freeswap);
330 err |= __put_user (s.procs, &info->procs);
331 err |= __put_user (s.totalhigh, &info->totalhigh);
332 err |= __put_user (s.freehigh, &info->freehigh);
333 err |= __put_user (s.mem_unit, &info->mem_unit);
339 #define RLIM_INFINITY32 0x7fffffff
340 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
348 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
349 int length_hi, int length_lo)
352 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
353 int length_lo, int length_hi)
358 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
360 return sys_truncate(path, length);
364 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
365 int length_hi, int length_lo)
368 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
369 int length_lo, int length_hi)
374 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
376 return sys_ftruncate(fd, length);
380 get_tv32(struct timeval *o, struct compat_timeval *i)
382 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
383 (__get_user(o->tv_sec, &i->tv_sec) |
384 __get_user(o->tv_usec, &i->tv_usec)));
388 put_tv32(struct compat_timeval *o, struct timeval *i)
390 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
391 (__put_user(i->tv_sec, &o->tv_sec) |
392 __put_user(i->tv_usec, &o->tv_usec)));
395 extern struct timezone sys_tz;
398 sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
402 do_gettimeofday(&ktv);
403 if (put_tv32(tv, &ktv))
407 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
413 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
417 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
419 if (__get_user(o->tv_sec, &i->tv_sec))
421 if (__get_user(usec, &i->tv_usec))
423 o->tv_nsec = usec * 1000;
428 sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
434 if (get_ts32(&kts, tv))
438 if (copy_from_user(&ktz, tz, sizeof(ktz)))
442 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
445 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
446 unsigned int offset_low, loff_t * result,
449 return sys_llseek(fd, offset_high, offset_low, result, origin);
452 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
453 lseek back to original location. They fail just like lseek does on
454 non-seekable files. */
456 asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
457 size_t count, u32 unused, u64 a4, u64 a5)
461 ssize_t (*read)(struct file *, char *, size_t, loff_t *);
468 if (!(file->f_mode & FMODE_READ))
470 pos = merge_64(a4, a5);
471 ret = locks_verify_area(FLOCK_VERIFY_READ, file->f_dentry->d_inode,
476 if (!file->f_op || !(read = file->f_op->read))
480 ret = read(file, buf, count, &pos);
482 dnotify_parent(file->f_dentry, DN_ACCESS);
489 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
490 size_t count, u32 unused, u64 a4, u64 a5)
494 ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
501 if (!(file->f_mode & FMODE_WRITE))
503 pos = merge_64(a4, a5);
504 ret = locks_verify_area(FLOCK_VERIFY_WRITE, file->f_dentry->d_inode,
509 if (!file->f_op || !(write = file->f_op->write))
514 ret = write(file, buf, count, &pos);
516 dnotify_parent(file->f_dentry, DN_MODIFY);
523 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
524 struct compat_timespec *interval)
528 mm_segment_t old_fs = get_fs ();
531 ret = sys_sched_rr_get_interval(pid, &t);
533 if (put_user (t.tv_sec, &interval->tv_sec) ||
534 __put_user (t.tv_nsec, &interval->tv_nsec))
539 struct msgbuf32 { s32 mtype; char mtext[1]; };
552 struct ipc64_perm32 {
560 unsigned short __pad1;
561 unsigned int __unused1;
562 unsigned int __unused2;
566 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
567 compat_time_t sem_otime; /* last semop time */
568 compat_time_t sem_ctime; /* last change time */
569 u32 sem_base; /* ptr to first semaphore in array */
570 u32 sem_pending; /* pending operations to be processed */
571 u32 sem_pending_last; /* last pending operation */
572 u32 undo; /* undo requests on this array */
573 unsigned short sem_nsems; /* no. of semaphores in array */
576 struct semid64_ds32 {
577 struct ipc64_perm32 sem_perm;
578 compat_time_t sem_otime;
579 compat_time_t sem_ctime;
580 unsigned int sem_nsems;
581 unsigned int __unused1;
582 unsigned int __unused2;
587 struct ipc_perm32 msg_perm;
590 compat_time_t msg_stime;
591 compat_time_t msg_rtime;
592 compat_time_t msg_ctime;
595 unsigned short msg_cbytes;
596 unsigned short msg_qnum;
597 unsigned short msg_qbytes;
598 compat_ipc_pid_t msg_lspid;
599 compat_ipc_pid_t msg_lrpid;
602 struct msqid64_ds32 {
603 struct ipc64_perm32 msg_perm;
604 compat_time_t msg_stime;
605 unsigned int __unused1;
606 compat_time_t msg_rtime;
607 unsigned int __unused2;
608 compat_time_t msg_ctime;
609 unsigned int __unused3;
610 unsigned int msg_cbytes;
611 unsigned int msg_qnum;
612 unsigned int msg_qbytes;
613 compat_pid_t msg_lspid;
614 compat_pid_t msg_lrpid;
615 unsigned int __unused4;
616 unsigned int __unused5;
620 struct ipc_perm32 shm_perm;
622 compat_time_t shm_atime;
623 compat_time_t shm_dtime;
624 compat_time_t shm_ctime;
625 compat_ipc_pid_t shm_cpid;
626 compat_ipc_pid_t shm_lpid;
627 unsigned short shm_nattch;
630 struct shmid64_ds32 {
631 struct ipc64_perm32 shm_perm;
632 compat_size_t shm_segsz;
633 compat_time_t shm_atime;
634 compat_time_t shm_dtime;
635 compat_time_t shm_ctime;
636 compat_pid_t shm_cpid;
637 compat_pid_t shm_lpid;
638 unsigned int shm_nattch;
639 unsigned int __unused1;
640 unsigned int __unused2;
643 struct ipc_kludge32 {
649 do_sys32_semctl(int first, int second, int third, void *uptr)
660 if (get_user (pad, (u32 *)uptr))
662 if ((third & ~IPC_64) == SETVAL)
663 fourth.val = (int)pad;
665 fourth.__pad = (void *)A(pad);
666 switch (third & ~IPC_64) {
678 err = sys_semctl (first, second, third, fourth);
686 err = sys_semctl(first, second, third | IPC_64, fourth);
689 if (third & IPC_64) {
690 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
692 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
696 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
697 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
698 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
699 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
700 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
701 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
702 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
703 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
704 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
705 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
707 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
709 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
713 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
714 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
715 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
716 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
717 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
718 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
719 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
720 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
721 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
722 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
737 do_sys32_msgsnd (int first, int second, int third, void *uptr)
739 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
746 p = kmalloc (second + sizeof (struct msgbuf)
750 err = get_user (p->mtype, &up->mtype);
753 err |= __copy_from_user (p->mtext, &up->mtext, second);
758 err = sys_msgsnd (first, p, second, third);
767 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
768 int version, void *uptr)
776 struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
777 struct ipc_kludge32 ipck;
783 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
785 uptr = (void *)AA(ipck.msgp);
786 msgtyp = ipck.msgtyp;
792 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
797 err = sys_msgrcv (first, p, second + 4, msgtyp, third);
801 up = (struct msgbuf32 *)uptr;
802 if (put_user (p->mtype, &up->mtype) ||
803 __copy_to_user (&up->mtext, p->mtext, err))
812 do_sys32_msgctl (int first, int second, void *uptr)
814 int err = -EINVAL, err2;
816 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
817 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
820 switch (second & ~IPC_64) {
824 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
828 if (second & IPC_64) {
829 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
833 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
834 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
835 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
836 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
838 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
842 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
843 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
844 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
845 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
851 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
859 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
861 if (second & IPC_64) {
862 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
866 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
867 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
868 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
869 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
870 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
871 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
872 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
873 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
874 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
875 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
876 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
877 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
878 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
879 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
880 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
884 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
888 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
889 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
890 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
891 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
892 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
893 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
894 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
895 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
896 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
897 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
898 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
899 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
900 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
901 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
902 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
913 do_sys32_shmat (int first, int second, int third, int version, void *uptr)
916 u32 *uaddr = (u32 *)A((u32)third);
921 err = do_shmat (first, uptr, second, &raddr);
924 err = put_user (raddr, uaddr);
930 u32 shm_tot, shm_rss, shm_swp;
931 u32 swap_attempts, swap_successes;
935 do_sys32_shmctl (int first, int second, void *uptr)
937 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
938 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
939 struct shm_info32 *uip = (struct shm_info32 *)uptr;
940 int err = -EFAULT, err2;
941 struct shmid64_ds s64;
946 switch (second & ~IPC_64) {
948 second = IPC_INFO; /* So that we don't have to translate it */
952 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
955 if (second & IPC_64) {
956 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
957 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
958 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
960 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
961 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
962 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
968 err = sys_shmctl(first, second & ~IPC_64, &s);
976 err = sys_shmctl(first, second | IPC_64, (void *) &s64);
980 if (second & IPC_64) {
981 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
985 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
986 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
987 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
988 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
989 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
990 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
991 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
992 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
993 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
994 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
995 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
996 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
997 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
998 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
1000 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
1004 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
1005 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
1006 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
1007 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
1008 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
1009 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
1010 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
1011 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
1012 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
1013 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
1014 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
1015 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
1016 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
1017 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
1026 err = sys_shmctl(first, second, (void *)&si);
1030 err2 = put_user(si.used_ids, &uip->used_ids);
1031 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
1032 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
1033 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
1034 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
1035 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
1048 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
1049 const struct compat_timespec *timeout32)
1051 struct compat_timespec t32;
1052 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
1054 if (copy_from_user(&t32, timeout32, sizeof(t32)))
1057 if (put_user(t32.tv_sec, &t64->tv_sec) ||
1058 put_user(t32.tv_nsec, &t64->tv_nsec))
1061 return sys_semtimedop(semid, tsems, nsems, t64);
1065 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
1069 version = call >> 16; /* hack for backward compatibility */
1074 /* struct sembuf is the same on 32 and 64bit :)) */
1075 err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
1079 err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
1080 (const struct compat_timespec __user *)AA(fifth));
1083 err = sys_semget (first, second, third);
1086 err = do_sys32_semctl (first, second, third,
1091 err = do_sys32_msgsnd (first, second, third,
1095 err = do_sys32_msgrcv (first, second, fifth, third,
1096 version, (void *)AA(ptr));
1099 err = sys_msgget ((key_t) first, second);
1102 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
1106 err = do_sys32_shmat (first, second, third,
1107 version, (void *)AA(ptr));
1110 err = sys_shmdt ((char *)A(ptr));
1113 err = sys_shmget (first, second, third);
1116 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
1126 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1127 int shmflg, int32_t *addr)
1129 unsigned long raddr;
1132 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1136 return put_user(raddr, addr);
1139 struct sysctl_args32
1141 compat_caddr_t name;
1143 compat_caddr_t oldval;
1144 compat_caddr_t oldlenp;
1145 compat_caddr_t newval;
1146 compat_size_t newlen;
1147 unsigned int __unused[4];
1150 #ifdef CONFIG_SYSCTL
1152 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1154 struct sysctl_args32 tmp;
1156 size_t oldlen, *oldlenp = NULL;
1157 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1159 if (copy_from_user(&tmp, args, sizeof(tmp)))
1162 if (tmp.oldval && tmp.oldlenp) {
1163 /* Duh, this is ugly and might not work if sysctl_args
1164 is in read-only memory, but do_sysctl does indirectly
1165 a lot of uaccess in both directions and we'd have to
1166 basically copy the whole sysctl.c here, and
1167 glibc's __sysctl uses rw memory for the structure
1169 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1170 put_user(oldlen, (size_t *)addr))
1172 oldlenp = (size_t *)addr;
1176 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1177 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1181 if (get_user(oldlen, (size_t *)addr) ||
1182 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1185 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1190 #else /* CONFIG_SYSCTL */
1192 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1197 #endif /* CONFIG_SYSCTL */
1199 asmlinkage long sys32_newuname(struct new_utsname * name)
1203 down_read(&uts_sem);
1204 if (copy_to_user(name,&system_utsname,sizeof *name))
1208 if (current->personality == PER_LINUX32 && !ret)
1209 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1215 asmlinkage int sys32_personality(unsigned long personality)
1218 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1219 personality = PER_LINUX32;
1220 ret = sys_personality(personality);
1221 if (ret == PER_LINUX32)
1226 /* ustat compatibility */
1228 compat_daddr_t f_tfree;
1229 compat_ino_t f_tinode;
1234 extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
1236 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
1240 struct ustat32 tmp32;
1241 mm_segment_t old_fs = get_fs();
1244 err = sys_ustat(dev, &tmp);
1250 memset(&tmp32,0,sizeof(struct ustat32));
1251 tmp32.f_tfree = tmp.f_tfree;
1252 tmp32.f_tinode = tmp.f_tinode;
1254 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1260 /* Handle adjtimex compatibility. */
1264 s32 offset, freq, maxerror, esterror;
1265 s32 status, constant, precision, tolerance;
1266 struct compat_timeval time;
1268 s32 ppsfreq, jitter, shift, stabil;
1269 s32 jitcnt, calcnt, errcnt, stbcnt;
1270 s32 :32; s32 :32; s32 :32; s32 :32;
1271 s32 :32; s32 :32; s32 :32; s32 :32;
1272 s32 :32; s32 :32; s32 :32; s32 :32;
1275 extern int do_adjtimex(struct timex *);
1277 asmlinkage int sys32_adjtimex(struct timex32 *utp)
1282 memset(&txc, 0, sizeof(struct timex));
1284 if (get_user(txc.modes, &utp->modes) ||
1285 __get_user(txc.offset, &utp->offset) ||
1286 __get_user(txc.freq, &utp->freq) ||
1287 __get_user(txc.maxerror, &utp->maxerror) ||
1288 __get_user(txc.esterror, &utp->esterror) ||
1289 __get_user(txc.status, &utp->status) ||
1290 __get_user(txc.constant, &utp->constant) ||
1291 __get_user(txc.precision, &utp->precision) ||
1292 __get_user(txc.tolerance, &utp->tolerance) ||
1293 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1294 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1295 __get_user(txc.tick, &utp->tick) ||
1296 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1297 __get_user(txc.jitter, &utp->jitter) ||
1298 __get_user(txc.shift, &utp->shift) ||
1299 __get_user(txc.stabil, &utp->stabil) ||
1300 __get_user(txc.jitcnt, &utp->jitcnt) ||
1301 __get_user(txc.calcnt, &utp->calcnt) ||
1302 __get_user(txc.errcnt, &utp->errcnt) ||
1303 __get_user(txc.stbcnt, &utp->stbcnt))
1306 ret = do_adjtimex(&txc);
1308 if (put_user(txc.modes, &utp->modes) ||
1309 __put_user(txc.offset, &utp->offset) ||
1310 __put_user(txc.freq, &utp->freq) ||
1311 __put_user(txc.maxerror, &utp->maxerror) ||
1312 __put_user(txc.esterror, &utp->esterror) ||
1313 __put_user(txc.status, &utp->status) ||
1314 __put_user(txc.constant, &utp->constant) ||
1315 __put_user(txc.precision, &utp->precision) ||
1316 __put_user(txc.tolerance, &utp->tolerance) ||
1317 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1318 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1319 __put_user(txc.tick, &utp->tick) ||
1320 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1321 __put_user(txc.jitter, &utp->jitter) ||
1322 __put_user(txc.shift, &utp->shift) ||
1323 __put_user(txc.stabil, &utp->stabil) ||
1324 __put_user(txc.jitcnt, &utp->jitcnt) ||
1325 __put_user(txc.calcnt, &utp->calcnt) ||
1326 __put_user(txc.errcnt, &utp->errcnt) ||
1327 __put_user(txc.stbcnt, &utp->stbcnt))
1333 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
1336 mm_segment_t old_fs = get_fs();
1340 if (offset && get_user(of, offset))
1344 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1347 if (offset && put_user(of, offset))
1353 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1356 return sys_readahead(fd, merge_64(a2, a3), count);
1359 /* Argument list sizes for sys_socketcall */
1360 #define AL(x) ((x) * sizeof(unsigned int))
1361 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1362 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1363 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1367 * System call vectors.
1369 * Argument checking cleaned up. Saved 20% in size.
1370 * This function doesn't need to set the kernel lock because
1371 * it is set by the callees.
1374 asmlinkage long sys32_socketcall(int call, unsigned int *args32)
1380 extern asmlinkage long sys_socket(int family, int type, int protocol);
1381 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1382 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1383 extern asmlinkage long sys_listen(int fd, int backlog);
1384 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1385 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1386 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1387 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1388 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1389 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1390 struct sockaddr __user *addr, int addr_len);
1391 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1392 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1393 struct sockaddr __user *addr, int __user *addr_len);
1394 extern asmlinkage long sys_shutdown(int fd, int how);
1395 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1396 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
1397 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1398 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1401 if(call<1||call>SYS_RECVMSG)
1404 /* copy_from_user should be SMP safe. */
1405 if (copy_from_user(a, args32, socketcall_nargs[call]))
1414 err = sys_socket(a0,a1,a[2]);
1417 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1420 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1423 err = sys_listen(a0,a1);
1426 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1428 case SYS_GETSOCKNAME:
1429 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1431 case SYS_GETPEERNAME:
1432 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1434 case SYS_SOCKETPAIR:
1435 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1438 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1441 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1442 (struct sockaddr __user *)A(a[4]), a[5]);
1445 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1448 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1449 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1452 err = sys_shutdown(a0,a1);
1454 case SYS_SETSOCKOPT:
1455 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1457 case SYS_GETSOCKOPT:
1458 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1461 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1464 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);