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 __user *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 (pgoff & (~PAGE_MASK >> 12))
111 pgoff >>= PAGE_SHIFT-12;
113 if (!(flags & MAP_ANONYMOUS)) {
119 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
121 down_write(¤t->mm->mmap_sem);
122 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
123 up_write(¤t->mm->mmap_sem);
132 asmlinkage int sys_truncate64(const char __user *path, unsigned int high,
137 return sys_truncate(path, ((long) high << 32) | low);
140 asmlinkage int sys_ftruncate64(unsigned int fd, unsigned int high,
145 return sys_ftruncate(fd, ((long) high << 32) | low);
149 * sys_execve() executes a new program.
151 asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
156 filename = getname(compat_ptr(regs.regs[4]));
157 error = PTR_ERR(filename);
158 if (IS_ERR(filename))
160 error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
161 compat_ptr(regs.regs[6]), ®s);
169 sysn32_waitid(int which, compat_pid_t pid,
170 siginfo_t __user *uinfo, int options,
171 struct compat_rusage __user *uru)
175 mm_segment_t old_fs = get_fs();
178 if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
182 ret = sys_waitid(which, pid, uinfo, options,
183 uru ? (struct rusage __user *) &ru : NULL);
186 if (__get_user(si_signo, &uinfo->si_signo))
188 if (ret < 0 || si_signo == 0)
192 ret = put_compat_rusage(&ru, uru);
212 asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
216 mm_segment_t old_fs = get_fs ();
219 ret = sys_sysinfo((struct sysinfo __user *)&s);
221 err = put_user (s.uptime, &info->uptime);
222 err |= __put_user (s.loads[0], &info->loads[0]);
223 err |= __put_user (s.loads[1], &info->loads[1]);
224 err |= __put_user (s.loads[2], &info->loads[2]);
225 err |= __put_user (s.totalram, &info->totalram);
226 err |= __put_user (s.freeram, &info->freeram);
227 err |= __put_user (s.sharedram, &info->sharedram);
228 err |= __put_user (s.bufferram, &info->bufferram);
229 err |= __put_user (s.totalswap, &info->totalswap);
230 err |= __put_user (s.freeswap, &info->freeswap);
231 err |= __put_user (s.procs, &info->procs);
232 err |= __put_user (s.totalhigh, &info->totalhigh);
233 err |= __put_user (s.freehigh, &info->freehigh);
234 err |= __put_user (s.mem_unit, &info->mem_unit);
240 #define RLIM_INFINITY32 0x7fffffff
241 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
249 asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
250 int length_hi, int length_lo)
253 asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
254 int length_lo, int length_hi)
259 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
261 return sys_truncate(path, length);
265 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
266 int length_hi, int length_lo)
269 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
270 int length_lo, int length_hi)
275 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
277 return sys_ftruncate(fd, length);
281 get_tv32(struct timeval *o, struct compat_timeval __user *i)
283 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
284 (__get_user(o->tv_sec, &i->tv_sec) |
285 __get_user(o->tv_usec, &i->tv_usec)));
289 put_tv32(struct compat_timeval __user *o, struct timeval *i)
291 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
292 (__put_user(i->tv_sec, &o->tv_sec) |
293 __put_user(i->tv_usec, &o->tv_usec)));
296 extern struct timezone sys_tz;
299 sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
303 do_gettimeofday(&ktv);
304 if (put_tv32(tv, &ktv))
308 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
314 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
318 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
320 if (__get_user(o->tv_sec, &i->tv_sec))
322 if (__get_user(usec, &i->tv_usec))
324 o->tv_nsec = usec * 1000;
329 sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
335 if (get_ts32(&kts, tv))
339 if (copy_from_user(&ktz, tz, sizeof(ktz)))
343 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
346 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
347 unsigned int offset_low, loff_t __user * result,
350 return sys_llseek(fd, offset_high, offset_low, result, origin);
353 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
354 lseek back to original location. They fail just like lseek does on
355 non-seekable files. */
357 asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
358 size_t count, u32 unused, u64 a4, u64 a5)
362 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
369 if (!(file->f_mode & FMODE_READ))
371 pos = merge_64(a4, a5);
372 ret = rw_verify_area(READ, file, &pos, count);
376 if (!file->f_op || !(read = file->f_op->read))
381 if (!(file->f_mode & FMODE_PREAD))
383 ret = read(file, buf, count, &pos);
385 dnotify_parent(file->f_dentry, DN_ACCESS);
392 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
393 size_t count, u32 unused, u64 a4, u64 a5)
397 ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *);
404 if (!(file->f_mode & FMODE_WRITE))
406 pos = merge_64(a4, a5);
407 ret = rw_verify_area(WRITE, file, &pos, count);
411 if (!file->f_op || !(write = file->f_op->write))
417 if (!(file->f_mode & FMODE_PWRITE))
420 ret = write(file, buf, count, &pos);
422 dnotify_parent(file->f_dentry, DN_MODIFY);
429 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
430 struct compat_timespec __user *interval)
434 mm_segment_t old_fs = get_fs ();
437 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
439 if (put_user (t.tv_sec, &interval->tv_sec) ||
440 __put_user (t.tv_nsec, &interval->tv_nsec))
445 struct msgbuf32 { s32 mtype; char mtext[1]; };
458 struct ipc64_perm32 {
466 unsigned short __pad1;
467 unsigned int __unused1;
468 unsigned int __unused2;
472 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
473 compat_time_t sem_otime; /* last semop time */
474 compat_time_t sem_ctime; /* last change time */
475 u32 sem_base; /* ptr to first semaphore in array */
476 u32 sem_pending; /* pending operations to be processed */
477 u32 sem_pending_last; /* last pending operation */
478 u32 undo; /* undo requests on this array */
479 unsigned short sem_nsems; /* no. of semaphores in array */
482 struct semid64_ds32 {
483 struct ipc64_perm32 sem_perm;
484 compat_time_t sem_otime;
485 compat_time_t sem_ctime;
486 unsigned int sem_nsems;
487 unsigned int __unused1;
488 unsigned int __unused2;
493 struct ipc_perm32 msg_perm;
496 compat_time_t msg_stime;
497 compat_time_t msg_rtime;
498 compat_time_t msg_ctime;
501 unsigned short msg_cbytes;
502 unsigned short msg_qnum;
503 unsigned short msg_qbytes;
504 compat_ipc_pid_t msg_lspid;
505 compat_ipc_pid_t msg_lrpid;
508 struct msqid64_ds32 {
509 struct ipc64_perm32 msg_perm;
510 compat_time_t msg_stime;
511 unsigned int __unused1;
512 compat_time_t msg_rtime;
513 unsigned int __unused2;
514 compat_time_t msg_ctime;
515 unsigned int __unused3;
516 unsigned int msg_cbytes;
517 unsigned int msg_qnum;
518 unsigned int msg_qbytes;
519 compat_pid_t msg_lspid;
520 compat_pid_t msg_lrpid;
521 unsigned int __unused4;
522 unsigned int __unused5;
526 struct ipc_perm32 shm_perm;
528 compat_time_t shm_atime;
529 compat_time_t shm_dtime;
530 compat_time_t shm_ctime;
531 compat_ipc_pid_t shm_cpid;
532 compat_ipc_pid_t shm_lpid;
533 unsigned short shm_nattch;
536 struct shmid64_ds32 {
537 struct ipc64_perm32 shm_perm;
538 compat_size_t shm_segsz;
539 compat_time_t shm_atime;
540 compat_time_t shm_dtime;
541 compat_time_t shm_ctime;
542 compat_pid_t shm_cpid;
543 compat_pid_t shm_lpid;
544 unsigned int shm_nattch;
545 unsigned int __unused1;
546 unsigned int __unused2;
549 struct ipc_kludge32 {
555 do_sys32_semctl(int first, int second, int third, void __user *uptr)
566 if (get_user (pad, (u32 __user *)uptr))
568 if ((third & ~IPC_64) == SETVAL)
569 fourth.val = (int)pad;
571 fourth.__pad = (void __user *)A(pad);
572 switch (third & ~IPC_64) {
584 err = sys_semctl (first, second, third, fourth);
589 fourth.__pad = (struct semid64_ds __user *)&s;
592 err = sys_semctl(first, second, third | IPC_64, fourth);
595 if (third & IPC_64) {
596 struct semid64_ds32 __user *usp64 = (struct semid64_ds32 __user *) A(pad);
598 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
602 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
603 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
604 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
605 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
606 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
607 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
608 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
609 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
610 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
611 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
613 struct semid_ds32 __user *usp32 = (struct semid_ds32 __user *) A(pad);
615 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
619 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
620 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
621 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
622 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
623 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
624 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
625 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
626 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
627 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
628 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
643 do_sys32_msgsnd (int first, int second, int third, void __user *uptr)
645 struct msgbuf32 __user *up = (struct msgbuf32 __user *)uptr;
652 p = kmalloc (second + sizeof (struct msgbuf)
656 err = get_user (p->mtype, &up->mtype);
659 err |= __copy_from_user (p->mtext, &up->mtext, second);
664 err = sys_msgsnd (first, (struct msgbuf __user *)p, second, third);
673 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
674 int version, void __user *uptr)
676 struct msgbuf32 __user *up;
682 struct ipc_kludge32 __user *uipck = (struct ipc_kludge32 __user *)uptr;
683 struct ipc_kludge32 ipck;
689 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
691 uptr = (void __user *)AA(ipck.msgp);
692 msgtyp = ipck.msgtyp;
698 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
703 err = sys_msgrcv (first, (struct msgbuf __user *)p, second + 4, msgtyp, third);
707 up = (struct msgbuf32 __user *)uptr;
708 if (put_user (p->mtype, &up->mtype) ||
709 __copy_to_user (&up->mtext, p->mtext, err))
718 do_sys32_msgctl (int first, int second, void __user *uptr)
720 int err = -EINVAL, err2;
722 struct msqid_ds32 __user *up32 = (struct msqid_ds32 __user *)uptr;
723 struct msqid64_ds32 __user *up64 = (struct msqid64_ds32 __user *)uptr;
726 switch (second & ~IPC_64) {
730 err = sys_msgctl (first, second, (struct msqid_ds __user *)uptr);
734 if (second & IPC_64) {
735 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
739 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
740 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
741 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
742 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
744 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
748 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
749 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
750 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
751 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
757 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
765 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds __user *)&m);
767 if (second & IPC_64) {
768 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
772 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
773 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
774 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
775 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
776 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
777 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
778 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
779 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
780 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
781 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
782 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
783 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
784 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
785 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
786 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
790 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
794 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
795 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
796 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
797 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
798 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
799 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
800 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
801 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
802 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
803 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
804 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
805 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
806 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
807 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
808 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
819 do_sys32_shmat (int first, int second, int third, int version, void __user *uptr)
822 u32 __user *uaddr = (u32 __user *)A((u32)third);
827 err = do_shmat (first, uptr, second, &raddr);
830 err = put_user (raddr, uaddr);
836 u32 shm_tot, shm_rss, shm_swp;
837 u32 swap_attempts, swap_successes;
841 do_sys32_shmctl (int first, int second, void __user *uptr)
843 struct shmid64_ds32 __user *up64 = (struct shmid64_ds32 __user *)uptr;
844 struct shmid_ds32 __user *up32 = (struct shmid_ds32 __user *)uptr;
845 struct shm_info32 __user *uip = (struct shm_info32 __user *)uptr;
846 int err = -EFAULT, err2;
847 struct shmid64_ds s64;
852 switch (second & ~IPC_64) {
854 second = IPC_INFO; /* So that we don't have to translate it */
858 err = sys_shmctl(first, second, (struct shmid_ds __user *)uptr);
861 if (second & IPC_64) {
862 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
863 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
864 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
866 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
867 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
868 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
874 err = sys_shmctl(first, second & ~IPC_64, (struct shmid_ds __user *)&s);
882 err = sys_shmctl(first, second | IPC_64, (void __user *) &s64);
886 if (second & IPC_64) {
887 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
891 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
892 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
893 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
894 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
895 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
896 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
897 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
898 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
899 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
900 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
901 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
902 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
903 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
904 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
906 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
910 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
911 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
912 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
913 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
914 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
915 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
916 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
917 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
918 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
919 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
920 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
921 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
922 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
923 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
932 err = sys_shmctl(first, second, (void __user *)&si);
936 err2 = put_user(si.used_ids, &uip->used_ids);
937 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
938 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
939 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
940 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
941 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
954 static int sys32_semtimedop(int semid, struct sembuf __user *tsems, int nsems,
955 const struct compat_timespec __user *timeout32)
957 struct compat_timespec t32;
958 struct timespec __user *t64 = compat_alloc_user_space(sizeof(*t64));
960 if (copy_from_user(&t32, timeout32, sizeof(t32)))
963 if (put_user(t32.tv_sec, &t64->tv_sec) ||
964 put_user(t32.tv_nsec, &t64->tv_nsec))
967 return sys_semtimedop(semid, tsems, nsems, t64);
971 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
975 version = call >> 16; /* hack for backward compatibility */
980 /* struct sembuf is the same on 32 and 64bit :)) */
981 err = sys_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
985 err = sys32_semtimedop (first, (struct sembuf __user *)AA(ptr), second,
986 (const struct compat_timespec __user *)AA(fifth));
989 err = sys_semget (first, second, third);
992 err = do_sys32_semctl (first, second, third,
993 (void __user *)AA(ptr));
997 err = do_sys32_msgsnd (first, second, third,
998 (void __user *)AA(ptr));
1001 err = do_sys32_msgrcv (first, second, fifth, third,
1002 version, (void __user *)AA(ptr));
1005 err = sys_msgget ((key_t) first, second);
1008 err = do_sys32_msgctl (first, second, (void __user *)AA(ptr));
1012 err = do_sys32_shmat (first, second, third,
1013 version, (void __user *)AA(ptr));
1016 err = sys_shmdt ((char __user *)A(ptr));
1019 err = sys_shmget (first, (unsigned)second, third);
1022 err = do_sys32_shmctl (first, second, (void __user *)AA(ptr));
1032 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1033 int shmflg, int32_t __user *addr)
1035 unsigned long raddr;
1038 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1042 return put_user(raddr, addr);
1045 struct sysctl_args32
1047 compat_caddr_t name;
1049 compat_caddr_t oldval;
1050 compat_caddr_t oldlenp;
1051 compat_caddr_t newval;
1052 compat_size_t newlen;
1053 unsigned int __unused[4];
1056 #ifdef CONFIG_SYSCTL
1058 asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
1060 struct sysctl_args32 tmp;
1063 size_t __user *oldlenp = NULL;
1064 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
1066 if (copy_from_user(&tmp, args, sizeof(tmp)))
1069 if (tmp.oldval && tmp.oldlenp) {
1070 /* Duh, this is ugly and might not work if sysctl_args
1071 is in read-only memory, but do_sysctl does indirectly
1072 a lot of uaccess in both directions and we'd have to
1073 basically copy the whole sysctl.c here, and
1074 glibc's __sysctl uses rw memory for the structure
1076 if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) ||
1077 put_user(oldlen, (size_t __user *)addr))
1079 oldlenp = (size_t __user *)addr;
1083 error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval),
1084 oldlenp, (void __user *)A(tmp.newval), tmp.newlen);
1088 if (get_user(oldlen, (size_t __user *)addr) ||
1089 put_user(oldlen, (u32 __user *)A(tmp.oldlenp)))
1092 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1097 #endif /* CONFIG_SYSCTL */
1099 asmlinkage long sys32_newuname(struct new_utsname __user * name)
1103 down_read(&uts_sem);
1104 if (copy_to_user(name,&system_utsname,sizeof *name))
1108 if (current->personality == PER_LINUX32 && !ret)
1109 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1115 asmlinkage int sys32_personality(unsigned long personality)
1118 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1119 personality = PER_LINUX32;
1120 ret = sys_personality(personality);
1121 if (ret == PER_LINUX32)
1126 /* ustat compatibility */
1128 compat_daddr_t f_tfree;
1129 compat_ino_t f_tinode;
1134 extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
1136 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
1140 struct ustat32 tmp32;
1141 mm_segment_t old_fs = get_fs();
1144 err = sys_ustat(dev, (struct ustat __user *)&tmp);
1150 memset(&tmp32,0,sizeof(struct ustat32));
1151 tmp32.f_tfree = tmp.f_tfree;
1152 tmp32.f_tinode = tmp.f_tinode;
1154 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1160 /* Handle adjtimex compatibility. */
1164 s32 offset, freq, maxerror, esterror;
1165 s32 status, constant, precision, tolerance;
1166 struct compat_timeval time;
1168 s32 ppsfreq, jitter, shift, stabil;
1169 s32 jitcnt, calcnt, errcnt, stbcnt;
1170 s32 :32; s32 :32; s32 :32; s32 :32;
1171 s32 :32; s32 :32; s32 :32; s32 :32;
1172 s32 :32; s32 :32; s32 :32; s32 :32;
1175 extern int do_adjtimex(struct timex *);
1177 asmlinkage int sys32_adjtimex(struct timex32 __user *utp)
1182 memset(&txc, 0, sizeof(struct timex));
1184 if (get_user(txc.modes, &utp->modes) ||
1185 __get_user(txc.offset, &utp->offset) ||
1186 __get_user(txc.freq, &utp->freq) ||
1187 __get_user(txc.maxerror, &utp->maxerror) ||
1188 __get_user(txc.esterror, &utp->esterror) ||
1189 __get_user(txc.status, &utp->status) ||
1190 __get_user(txc.constant, &utp->constant) ||
1191 __get_user(txc.precision, &utp->precision) ||
1192 __get_user(txc.tolerance, &utp->tolerance) ||
1193 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1194 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1195 __get_user(txc.tick, &utp->tick) ||
1196 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1197 __get_user(txc.jitter, &utp->jitter) ||
1198 __get_user(txc.shift, &utp->shift) ||
1199 __get_user(txc.stabil, &utp->stabil) ||
1200 __get_user(txc.jitcnt, &utp->jitcnt) ||
1201 __get_user(txc.calcnt, &utp->calcnt) ||
1202 __get_user(txc.errcnt, &utp->errcnt) ||
1203 __get_user(txc.stbcnt, &utp->stbcnt))
1206 ret = do_adjtimex(&txc);
1208 if (put_user(txc.modes, &utp->modes) ||
1209 __put_user(txc.offset, &utp->offset) ||
1210 __put_user(txc.freq, &utp->freq) ||
1211 __put_user(txc.maxerror, &utp->maxerror) ||
1212 __put_user(txc.esterror, &utp->esterror) ||
1213 __put_user(txc.status, &utp->status) ||
1214 __put_user(txc.constant, &utp->constant) ||
1215 __put_user(txc.precision, &utp->precision) ||
1216 __put_user(txc.tolerance, &utp->tolerance) ||
1217 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1218 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1219 __put_user(txc.tick, &utp->tick) ||
1220 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1221 __put_user(txc.jitter, &utp->jitter) ||
1222 __put_user(txc.shift, &utp->shift) ||
1223 __put_user(txc.stabil, &utp->stabil) ||
1224 __put_user(txc.jitcnt, &utp->jitcnt) ||
1225 __put_user(txc.calcnt, &utp->calcnt) ||
1226 __put_user(txc.errcnt, &utp->errcnt) ||
1227 __put_user(txc.stbcnt, &utp->stbcnt))
1233 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
1236 mm_segment_t old_fs = get_fs();
1240 if (offset && get_user(of, offset))
1244 ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
1247 if (offset && put_user(of, offset))
1253 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1256 return sys_readahead(fd, merge_64(a2, a3), count);
1259 /* Argument list sizes for sys_socketcall */
1260 #define AL(x) ((x) * sizeof(unsigned int))
1261 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1262 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1263 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1267 * System call vectors.
1269 * Argument checking cleaned up. Saved 20% in size.
1270 * This function doesn't need to set the kernel lock because
1271 * it is set by the callees.
1274 asmlinkage long sys32_socketcall(int call, unsigned int __user *args32)
1280 extern asmlinkage long sys_socket(int family, int type, int protocol);
1281 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1282 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1283 extern asmlinkage long sys_listen(int fd, int backlog);
1284 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1285 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1286 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1287 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1288 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1289 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1290 struct sockaddr __user *addr, int addr_len);
1291 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1292 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1293 struct sockaddr __user *addr, int __user *addr_len);
1294 extern asmlinkage long sys_shutdown(int fd, int how);
1295 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1296 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen);
1297 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1298 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1301 if(call<1||call>SYS_RECVMSG)
1304 /* copy_from_user should be SMP safe. */
1305 if (copy_from_user(a, args32, socketcall_nargs[call]))
1314 err = sys_socket(a0,a1,a[2]);
1317 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1320 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1323 err = sys_listen(a0,a1);
1326 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1328 case SYS_GETSOCKNAME:
1329 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1331 case SYS_GETPEERNAME:
1332 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1334 case SYS_SOCKETPAIR:
1335 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1338 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1341 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1342 (struct sockaddr __user *)A(a[4]), a[5]);
1345 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1348 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1349 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1352 err = sys_shutdown(a0,a1);
1354 case SYS_SETSOCKOPT:
1355 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1357 case SYS_GETSOCKOPT:
1358 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1361 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1364 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1377 u32 payload[(64 / 4) - 3];
1380 extern asmlinkage long
1381 sys_timer_create(clockid_t which_clock,
1382 struct sigevent __user *timer_event_spec,
1383 timer_t __user * created_timer_id);
1386 sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
1388 struct sigevent __user *p = NULL;
1391 p = compat_alloc_user_space(sizeof(struct sigevent));
1392 memset(&se, 0, sizeof(struct sigevent));
1393 if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
1394 __get_user(se.sigev_signo, &se32->sigev_signo) ||
1395 __get_user(se.sigev_notify, &se32->sigev_notify) ||
1396 __copy_from_user(&se._sigev_un._pad, &se32->payload,
1397 sizeof(se32->payload)) ||
1398 copy_to_user(p, &se, sizeof(se)))
1401 return sys_timer_create(clock, p, timer_id);
1404 save_static_function(sys32_clone);
1405 __attribute_used__ noinline static int
1406 _sys32_clone(nabi_no_regargs struct pt_regs regs)
1408 unsigned long clone_flags;
1409 unsigned long newsp;
1410 int __user *parent_tidptr, *child_tidptr;
1412 clone_flags = regs.regs[4];
1413 newsp = regs.regs[5];
1415 newsp = regs.regs[29];
1416 parent_tidptr = (int __user *) regs.regs[6];
1418 /* Use __dummy4 instead of getting it off the stack, so that
1420 child_tidptr = (int __user *) __dummy4;
1421 return do_fork(clone_flags, newsp, ®s, 0,
1422 parent_tidptr, child_tidptr);
1425 extern asmlinkage void sys_set_thread_area(u32 addr);
1426 asmlinkage void sys32_set_thread_area(u32 addr)
1428 sys_set_thread_area(AA(addr));