2 * arch/s390x/kernel/linux32.c
5 * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
7 * Gerhard Tonn (ton@de.ibm.com)
8 * Thomas Spatzier (tspat@de.ibm.com)
10 * Conversion between 31bit and 64bit native syscalls.
12 * Heavily inspired by the 32-bit Sparc compat code which is
13 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
14 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
19 #include <linux/config.h>
20 #include <linux/kernel.h>
21 #include <linux/sched.h>
24 #include <linux/file.h>
25 #include <linux/signal.h>
26 #include <linux/resource.h>
27 #include <linux/times.h>
28 #include <linux/utsname.h>
29 #include <linux/timex.h>
30 #include <linux/smp.h>
31 #include <linux/smp_lock.h>
32 #include <linux/sem.h>
33 #include <linux/msg.h>
34 #include <linux/shm.h>
35 #include <linux/slab.h>
36 #include <linux/uio.h>
37 #include <linux/nfs_fs.h>
38 #include <linux/smb_fs.h>
39 #include <linux/smb_mount.h>
40 #include <linux/ncp_fs.h>
41 #include <linux/quota.h>
42 #include <linux/module.h>
43 #include <linux/sunrpc/svc.h>
44 #include <linux/nfsd/nfsd.h>
45 #include <linux/nfsd/cache.h>
46 #include <linux/nfsd/xdr.h>
47 #include <linux/nfsd/syscall.h>
48 #include <linux/poll.h>
49 #include <linux/personality.h>
50 #include <linux/stat.h>
51 #include <linux/filter.h>
52 #include <linux/highmem.h>
53 #include <linux/highuid.h>
54 #include <linux/mman.h>
55 #include <linux/ipv6.h>
57 #include <linux/icmpv6.h>
58 #include <linux/sysctl.h>
59 #include <linux/binfmts.h>
60 #include <linux/compat.h>
61 #include <linux/vfs.h>
62 #include <linux/ptrace.h>
64 #include <asm/types.h>
66 #include <asm/uaccess.h>
67 #include <asm/semaphore.h>
72 #include "compat_linux.h"
74 extern asmlinkage long sys_chown(const char *, uid_t,gid_t);
75 extern asmlinkage long sys_lchown(const char *, uid_t,gid_t);
76 extern asmlinkage long sys_fchown(unsigned int, uid_t,gid_t);
77 extern asmlinkage long sys_setregid(gid_t, gid_t);
78 extern asmlinkage long sys_setgid(gid_t);
79 extern asmlinkage long sys_setreuid(uid_t, uid_t);
80 extern asmlinkage long sys_setuid(uid_t);
81 extern asmlinkage long sys_setresuid(uid_t, uid_t, uid_t);
82 extern asmlinkage long sys_setresgid(gid_t, gid_t, gid_t);
83 extern asmlinkage long sys_setfsuid(uid_t);
84 extern asmlinkage long sys_setfsgid(gid_t);
86 /* For this source file, we want overflow handling. */
96 #undef SET_OLDSTAT_UID
97 #undef SET_OLDSTAT_GID
101 #define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
102 #define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
103 #define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
104 #define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
105 #define SET_UID16(var, uid) var = high2lowuid(uid)
106 #define SET_GID16(var, gid) var = high2lowgid(gid)
107 #define NEW_TO_OLD_UID(uid) high2lowuid(uid)
108 #define NEW_TO_OLD_GID(gid) high2lowgid(gid)
109 #define SET_OLDSTAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
110 #define SET_OLDSTAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
111 #define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
112 #define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
114 asmlinkage long sys32_chown16(const char * filename, u16 user, u16 group)
116 return sys_chown(filename, low2highuid(user), low2highgid(group));
119 asmlinkage long sys32_lchown16(const char * filename, u16 user, u16 group)
121 return sys_lchown(filename, low2highuid(user), low2highgid(group));
124 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
126 return sys_fchown(fd, low2highuid(user), low2highgid(group));
129 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
131 return sys_setregid(low2highgid(rgid), low2highgid(egid));
134 asmlinkage long sys32_setgid16(u16 gid)
136 return sys_setgid((gid_t)gid);
139 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
141 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
144 asmlinkage long sys32_setuid16(u16 uid)
146 return sys_setuid((uid_t)uid);
149 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
151 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
155 asmlinkage long sys32_getresuid16(u16 *ruid, u16 *euid, u16 *suid)
159 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
160 !(retval = put_user(high2lowuid(current->euid), euid)))
161 retval = put_user(high2lowuid(current->suid), suid);
166 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
168 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
172 asmlinkage long sys32_getresgid16(u16 *rgid, u16 *egid, u16 *sgid)
176 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
177 !(retval = put_user(high2lowgid(current->egid), egid)))
178 retval = put_user(high2lowgid(current->sgid), sgid);
183 asmlinkage long sys32_setfsuid16(u16 uid)
185 return sys_setfsuid((uid_t)uid);
188 asmlinkage long sys32_setfsgid16(u16 gid)
190 return sys_setfsgid((gid_t)gid);
193 static int groups16_to_user(u16 *grouplist, struct group_info *group_info)
198 for (i = 0; i < group_info->ngroups; i++) {
199 group = (u16)GROUP_AT(group_info, i);
200 if (put_user(group, grouplist+i))
207 static int groups16_from_user(struct group_info *group_info, u16 *grouplist)
212 for (i = 0; i < group_info->ngroups; i++) {
213 if (get_user(group, grouplist+i))
215 GROUP_AT(group_info, i) = (gid_t)group;
221 asmlinkage long sys32_getgroups16(int gidsetsize, u16 *grouplist)
228 get_group_info(current->group_info);
229 i = current->group_info->ngroups;
231 if (i > gidsetsize) {
235 if (groups16_to_user(grouplist, current->group_info)) {
241 put_group_info(current->group_info);
245 asmlinkage long sys32_setgroups16(int gidsetsize, u16 *grouplist)
247 struct group_info *group_info;
250 if (!capable(CAP_SETGID))
252 if ((unsigned)gidsetsize > NGROUPS_MAX)
255 group_info = groups_alloc(gidsetsize);
258 retval = groups16_from_user(group_info, grouplist);
260 put_group_info(group_info);
264 retval = set_current_groups(group_info);
265 put_group_info(group_info);
270 asmlinkage long sys32_getuid16(void)
272 return high2lowuid(current->uid);
275 asmlinkage long sys32_geteuid16(void)
277 return high2lowuid(current->euid);
280 asmlinkage long sys32_getgid16(void)
282 return high2lowgid(current->gid);
285 asmlinkage long sys32_getegid16(void)
287 return high2lowgid(current->egid);
290 /* 32-bit timeval and related flotsam. */
292 static inline long get_tv32(struct timeval *o, struct compat_timeval *i)
294 return (!access_ok(VERIFY_READ, tv32, sizeof(*tv32)) ||
295 (__get_user(o->tv_sec, &i->tv_sec) ||
296 __get_user(o->tv_usec, &i->tv_usec)));
299 static inline long put_tv32(struct compat_timeval *o, struct timeval *i)
301 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
302 (__put_user(i->tv_sec, &o->tv_sec) ||
303 __put_user(i->tv_usec, &o->tv_usec)));
306 struct msgbuf32 { s32 mtype; char mtext[1]; };
308 struct ipc64_perm_ds32
311 __kernel_uid32_t uid;
312 __kernel_gid32_t gid;
313 __kernel_uid32_t cuid;
314 __kernel_gid32_t cgid;
316 unsigned short __pad1;
318 unsigned short __pad2;
319 unsigned int __unused1;
320 unsigned int __unused2;
335 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
336 compat_time_t sem_otime; /* last semop time */
337 compat_time_t sem_ctime; /* last change time */
338 u32 sem_base; /* ptr to first semaphore in array */
339 u32 sem_pending; /* pending operations to be processed */
340 u32 sem_pending_last; /* last pending operation */
341 u32 undo; /* undo requests on this array */
342 unsigned short sem_nsems; /* no. of semaphores in array */
345 struct semid64_ds32 {
346 struct ipc64_perm_ds32 sem_perm;
348 compat_time_t sem_otime;
350 compat_time_t sem_ctime;
358 struct ipc_perm32 msg_perm;
361 compat_time_t msg_stime;
362 compat_time_t msg_rtime;
363 compat_time_t msg_ctime;
366 unsigned short msg_cbytes;
367 unsigned short msg_qnum;
368 unsigned short msg_qbytes;
369 compat_ipc_pid_t msg_lspid;
370 compat_ipc_pid_t msg_lrpid;
373 struct msqid64_ds32 {
374 struct ipc64_perm_ds32 msg_perm;
376 compat_time_t msg_stime;
378 compat_time_t msg_rtime;
380 compat_time_t msg_ctime;
381 unsigned int msg_cbytes;
382 unsigned int msg_qnum;
383 unsigned int msg_qbytes;
384 compat_pid_t msg_lspid;
385 compat_pid_t msg_lrpid;
386 unsigned int __unused1;
387 unsigned int __unused2;
392 struct ipc_perm32 shm_perm;
394 compat_time_t shm_atime;
395 compat_time_t shm_dtime;
396 compat_time_t shm_ctime;
397 compat_ipc_pid_t shm_cpid;
398 compat_ipc_pid_t shm_lpid;
399 unsigned short shm_nattch;
402 struct shmid64_ds32 {
403 struct ipc64_perm_ds32 shm_perm;
404 compat_size_t shm_segsz;
405 compat_time_t shm_atime;
406 unsigned int __unused1;
407 compat_time_t shm_dtime;
408 unsigned int __unused2;
409 compat_time_t shm_ctime;
410 unsigned int __unused3;
411 compat_pid_t shm_cpid;
412 compat_pid_t shm_lpid;
413 unsigned int shm_nattch;
414 unsigned int __unused4;
415 unsigned int __unused5;
418 extern int sem_ctls[];
419 #define sc_semopm (sem_ctls[2])
420 #define SEMOPM_FAST 64 /* ~ 372 bytes on stack */
423 do_sys32_semtimedop (int semid, struct sembuf *tsops, int nsops,
424 struct compat_timespec *timeout32)
426 struct sembuf *sops, fast_sops[SEMOPM_FAST];
431 /* parameter checking precedence should mirror sys_semtimedop() */
432 if (nsops < 1 || semid < 0)
434 if (nsops > sc_semopm)
436 if (nsops <= SEMOPM_FAST)
439 sops = kmalloc(nsops * sizeof(*sops), GFP_KERNEL);
443 if (copy_from_user(sops, tsops, nsops * sizeof(*tsops)) ||
444 get_compat_timespec(&t, timeout32))
449 ret = sys_semtimedop(semid, sops, nsops, &t);
452 if (sops != fast_sops)
457 #define IPCOP_MASK(__x) (1UL << (__x))
458 static int do_sys32_semctl(int first, int second, int third, void *uptr)
467 if (get_user (pad, (u32 *)uptr))
470 fourth.val = (int)pad;
472 fourth.__pad = (void *)A(pad);
473 if (IPCOP_MASK (third) &
474 (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SEM_INFO) | IPCOP_MASK (GETVAL) |
475 IPCOP_MASK (GETPID) | IPCOP_MASK (GETNCNT) | IPCOP_MASK (GETZCNT) |
476 IPCOP_MASK (GETALL) | IPCOP_MASK (SETALL) | IPCOP_MASK (IPC_RMID))) {
477 err = sys_semctl (first, second, third, fourth);
478 } else if (third & IPC_64) {
480 struct semid64_ds32 *usp = (struct semid64_ds32 *)A(pad);
482 int need_back_translation;
484 if (third == (IPC_SET|IPC_64)) {
485 err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
486 err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
487 err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
492 need_back_translation =
493 (IPCOP_MASK (third) &
494 (IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
495 if (need_back_translation)
499 err = sys_semctl (first, second, third, fourth);
501 if (need_back_translation) {
502 int err2 = put_user (s.sem_perm.key, &usp->sem_perm.key);
503 err2 |= __put_user (high2lowuid(s.sem_perm.uid), &usp->sem_perm.uid);
504 err2 |= __put_user (high2lowgid(s.sem_perm.gid), &usp->sem_perm.gid);
505 err2 |= __put_user (high2lowuid(s.sem_perm.cuid), &usp->sem_perm.cuid);
506 err2 |= __put_user (high2lowgid(s.sem_perm.cgid), &usp->sem_perm.cgid);
507 err2 |= __put_user (s.sem_perm.mode, &usp->sem_perm.mode);
508 err2 |= __put_user (s.sem_perm.seq, &usp->sem_perm.seq);
509 err2 |= __put_user (s.sem_otime, &usp->sem_otime);
510 err2 |= __put_user (s.sem_ctime, &usp->sem_ctime);
511 err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
512 if (err2) err = -EFAULT;
516 struct semid_ds32 *usp = (struct semid_ds32 *)A(pad);
518 int need_back_translation;
520 if (third == IPC_SET) {
521 err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
522 err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
523 err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
528 need_back_translation =
529 (IPCOP_MASK (third) &
530 (IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
531 if (need_back_translation)
535 err = sys_semctl (first, second, third, fourth);
537 if (need_back_translation) {
538 int err2 = put_user (s.sem_perm.key, &usp->sem_perm.key);
539 err2 |= __put_user (high2lowuid(s.sem_perm.uid), &usp->sem_perm.uid);
540 err2 |= __put_user (high2lowgid(s.sem_perm.gid), &usp->sem_perm.gid);
541 err2 |= __put_user (high2lowuid(s.sem_perm.cuid), &usp->sem_perm.cuid);
542 err2 |= __put_user (high2lowgid(s.sem_perm.cgid), &usp->sem_perm.cgid);
543 err2 |= __put_user (s.sem_perm.mode, &usp->sem_perm.mode);
544 err2 |= __put_user (s.sem_perm.seq, &usp->sem_perm.seq);
545 err2 |= __put_user (s.sem_otime, &usp->sem_otime);
546 err2 |= __put_user (s.sem_ctime, &usp->sem_ctime);
547 err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
548 if (err2) err = -EFAULT;
555 static int do_sys32_msgsnd (int first, int second, int third, void *uptr)
557 struct msgbuf *p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
558 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
566 if (second > MSGMAX || first < 0 || second < 0)
572 if (get_user (p->mtype, &up->mtype) ||
573 __copy_from_user (p->mtext, &up->mtext, second))
577 err = sys_msgsnd (first, p, second, third);
584 static int do_sys32_msgrcv (int first, int second, int msgtyp, int third,
585 int version, void *uptr)
592 if (first < 0 || second < 0)
596 struct ipc_kludge_32 *uipck = (struct ipc_kludge_32 *)uptr;
597 struct ipc_kludge_32 ipck;
603 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge_32)))
605 uptr = (void *)A(ipck.msgp);
606 msgtyp = ipck.msgtyp;
609 p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
614 err = sys_msgrcv (first, p, second, msgtyp, third);
618 up = (struct msgbuf32 *)uptr;
619 if (put_user (p->mtype, &up->mtype) ||
620 __copy_to_user (&up->mtext, p->mtext, err))
628 static int do_sys32_msgctl (int first, int second, void *uptr)
632 if (IPCOP_MASK (second) &
633 (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (MSG_INFO) |
634 IPCOP_MASK (IPC_RMID))) {
635 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
636 } else if (second & IPC_64) {
638 struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
641 if (second == (IPC_SET|IPC_64)) {
642 err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
643 err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
644 err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
645 err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
651 err = sys_msgctl (first, second, (struct msqid_ds *)&m);
653 if (IPCOP_MASK (second) &
654 (IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
655 int err2 = put_user (m.msg_perm.key, &up->msg_perm.key);
656 err2 |= __put_user (high2lowuid(m.msg_perm.uid), &up->msg_perm.uid);
657 err2 |= __put_user (high2lowgid(m.msg_perm.gid), &up->msg_perm.gid);
658 err2 |= __put_user (high2lowuid(m.msg_perm.cuid), &up->msg_perm.cuid);
659 err2 |= __put_user (high2lowgid(m.msg_perm.cgid), &up->msg_perm.cgid);
660 err2 |= __put_user (m.msg_perm.mode, &up->msg_perm.mode);
661 err2 |= __put_user (m.msg_perm.seq, &up->msg_perm.seq);
662 err2 |= __put_user (m.msg_stime, &up->msg_stime);
663 err2 |= __put_user (m.msg_rtime, &up->msg_rtime);
664 err2 |= __put_user (m.msg_ctime, &up->msg_ctime);
665 err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
666 err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
667 err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
668 err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
669 err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
675 struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
678 if (second == IPC_SET) {
679 err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
680 err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
681 err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
682 err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
688 err = sys_msgctl (first, second, &m);
690 if (IPCOP_MASK (second) &
691 (IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
692 int err2 = put_user (m.msg_perm.key, &up->msg_perm.key);
693 err2 |= __put_user (high2lowuid(m.msg_perm.uid), &up->msg_perm.uid);
694 err2 |= __put_user (high2lowgid(m.msg_perm.gid), &up->msg_perm.gid);
695 err2 |= __put_user (high2lowuid(m.msg_perm.cuid), &up->msg_perm.cuid);
696 err2 |= __put_user (high2lowgid(m.msg_perm.cgid), &up->msg_perm.cgid);
697 err2 |= __put_user (m.msg_perm.mode, &up->msg_perm.mode);
698 err2 |= __put_user (m.msg_perm.seq, &up->msg_perm.seq);
699 err2 |= __put_user (m.msg_stime, &up->msg_stime);
700 err2 |= __put_user (m.msg_rtime, &up->msg_rtime);
701 err2 |= __put_user (m.msg_ctime, &up->msg_ctime);
702 err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
703 err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
704 err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
705 err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
706 err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
716 static int do_sys32_shmat (int first, int second, int third, int version, void *uptr)
719 u32 *uaddr = (u32 *)A((u32)third);
724 err = sys_shmat (first, uptr, second, &raddr);
727 err = put_user (raddr, uaddr);
732 static int do_sys32_shmctl (int first, int second, void *uptr)
736 if (IPCOP_MASK (second) &
737 (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SHM_LOCK) | IPCOP_MASK (SHM_UNLOCK) |
738 IPCOP_MASK (IPC_RMID))) {
739 if (second == (IPC_INFO|IPC_64))
740 second = IPC_INFO; /* So that we don't have to translate it */
741 err = sys_shmctl (first, second, (struct shmid_ds *)uptr);
742 } else if ((second & IPC_64) && second != (SHM_INFO|IPC_64)) {
744 struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
747 if (second == (IPC_SET|IPC_64)) {
748 err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
749 err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
750 err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
756 err = sys_shmctl (first, second, (struct shmid_ds *)&s);
761 /* Mask it even in this case so it becomes a CSE. */
762 if (IPCOP_MASK (second) &
763 (IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
764 int err2 = put_user (s.shm_perm.key, &up->shm_perm.key);
765 err2 |= __put_user (high2lowuid(s.shm_perm.uid), &up->shm_perm.uid);
766 err2 |= __put_user (high2lowgid(s.shm_perm.gid), &up->shm_perm.gid);
767 err2 |= __put_user (high2lowuid(s.shm_perm.cuid), &up->shm_perm.cuid);
768 err2 |= __put_user (high2lowgid(s.shm_perm.cgid), &up->shm_perm.cgid);
769 err2 |= __put_user (s.shm_perm.mode, &up->shm_perm.mode);
770 err2 |= __put_user (s.shm_perm.seq, &up->shm_perm.seq);
771 err2 |= __put_user (s.shm_atime, &up->shm_atime);
772 err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
773 err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
774 err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
775 err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
776 err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
777 err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
783 struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
787 if (second == IPC_SET) {
788 err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
789 err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
790 err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
796 err = sys_shmctl (first, second, &s);
801 /* Mask it even in this case so it becomes a CSE. */
802 if (second == SHM_INFO) {
805 u32 shm_tot, shm_rss, shm_swp;
806 u32 swap_attempts, swap_successes;
807 } *uip = (struct shm_info32 *)uptr;
808 struct shm_info *kp = (struct shm_info *)&s;
809 int err2 = put_user (kp->used_ids, &uip->used_ids);
810 err2 |= __put_user (kp->shm_tot, &uip->shm_tot);
811 err2 |= __put_user (kp->shm_rss, &uip->shm_rss);
812 err2 |= __put_user (kp->shm_swp, &uip->shm_swp);
813 err2 |= __put_user (kp->swap_attempts, &uip->swap_attempts);
814 err2 |= __put_user (kp->swap_successes, &uip->swap_successes);
817 } else if (IPCOP_MASK (second) &
818 (IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
819 int err2 = put_user (s.shm_perm.key, &up->shm_perm.key);
820 err2 |= __put_user (high2lowuid(s.shm_perm.uid), &up->shm_perm.uid);
821 err2 |= __put_user (high2lowgid(s.shm_perm.gid), &up->shm_perm.gid);
822 err2 |= __put_user (high2lowuid(s.shm_perm.cuid), &up->shm_perm.cuid);
823 err2 |= __put_user (high2lowgid(s.shm_perm.cgid), &up->shm_perm.cgid);
824 err2 |= __put_user (s.shm_perm.mode, &up->shm_perm.mode);
825 err2 |= __put_user (s.shm_perm.seq, &up->shm_perm.seq);
826 err2 |= __put_user (s.shm_atime, &up->shm_atime);
827 err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
828 err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
829 err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
830 err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
831 err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
832 err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
842 * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
844 * This is really horribly ugly.
846 asmlinkage int sys32_ipc (u32 call, int first, int second, int third, u32 ptr)
850 version = call >> 16; /* hack for backward compatibility */
856 if (call <= SEMTIMEDOP)
860 err = do_sys32_semtimedop(first,
861 (struct sembuf *)AA(ptr),
863 (struct compat_timespec *)
867 /* else fall through for normal semop() */
869 /* struct sembuf is the same on 32 and 64bit :)) */
870 err = sys_semtimedop (first, (struct sembuf *)AA(ptr),
874 err = sys_semget (first, second, third);
877 err = do_sys32_semctl (first, second, third, (void *)AA(ptr));
886 err = do_sys32_msgsnd (first, second, third, (void *)AA(ptr));
889 err = do_sys32_msgrcv (first, second, 0, third,
890 version, (void *)AA(ptr));
893 err = sys_msgget ((key_t) first, second);
896 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
905 err = do_sys32_shmat (first, second, third,
906 version, (void *)AA(ptr));
909 err = sys_shmdt ((char *)AA(ptr));
912 err = sys_shmget (first, second, third);
915 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
928 extern asmlinkage long sys_truncate(const char * path, unsigned long length);
929 extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
931 asmlinkage int sys32_truncate64(const char * path, unsigned long high, unsigned long low)
936 return sys_truncate(path, (high << 32) | low);
939 asmlinkage int sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
944 return sys_ftruncate(fd, (high << 32) | low);
947 typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
948 typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
950 static long do_readv_writev32(int type, struct file *file,
951 const struct compat_iovec *vector, u32 count)
953 unsigned long tot_len;
954 struct iovec iovstack[UIO_FASTIOV];
955 struct iovec *iov=iovstack, *ivp;
961 /* First get the "struct iovec" from user memory and
962 * verify all the pointers
966 if (verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
968 if (count > UIO_MAXIOV)
970 if (count > UIO_FASTIOV) {
971 iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
981 compat_ssize_t tmp = tot_len;
985 if (__get_user(len, &vector->iov_len) ||
986 __get_user(buf, &vector->iov_base)) {
990 if (len < 0) /* size_t not fitting an ssize_t32 .. */
993 if (tot_len < tmp) /* maths overflow on the compat_ssize_t */
995 ivp->iov_base = (void *)A(buf);
996 ivp->iov_len = (__kernel_size_t) len;
1006 inode = file->f_dentry->d_inode;
1007 /* VERIFY_WRITE actually means a read, as we write to user space */
1008 retval = locks_verify_area((type == VERIFY_WRITE
1009 ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
1010 inode, file, file->f_pos, tot_len);
1014 /* VERIFY_WRITE actually means a read, as we write to user space */
1015 fnv = (type == VERIFY_WRITE ? file->f_op->readv : file->f_op->writev);
1017 retval = fnv(file, iov, count, &file->f_pos);
1021 fn = (type == VERIFY_WRITE ? file->f_op->read :
1022 (io_fn_t) file->f_op->write);
1029 base = ivp->iov_base;
1033 nr = fn(file, base, len, &file->f_pos);
1044 if (iov != iovstack)
1050 asmlinkage long sys32_readv(int fd, struct compat_iovec *vector, u32 count)
1059 if (file->f_op && (file->f_mode & FMODE_READ) &&
1060 (file->f_op->readv || file->f_op->read))
1061 ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
1068 asmlinkage long sys32_writev(int fd, struct compat_iovec *vector, u32 count)
1076 if (file->f_op && (file->f_mode & FMODE_WRITE) &&
1077 (file->f_op->writev || file->f_op->write))
1078 ret = do_readv_writev32(VERIFY_READ, file, vector, count);
1085 /* readdir & getdents */
1087 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
1088 #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1090 struct old_linux_dirent32 {
1093 unsigned short d_namlen;
1097 struct readdir_callback32 {
1098 struct old_linux_dirent32 * dirent;
1102 static int fillonedir(void * __buf, const char * name, int namlen,
1103 loff_t offset, ino_t ino, unsigned int d_type)
1105 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
1106 struct old_linux_dirent32 * dirent;
1111 dirent = buf->dirent;
1112 put_user(ino, &dirent->d_ino);
1113 put_user(offset, &dirent->d_offset);
1114 put_user(namlen, &dirent->d_namlen);
1115 copy_to_user(dirent->d_name, name, namlen);
1116 put_user(0, dirent->d_name + namlen);
1120 asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
1124 struct readdir_callback32 buf;
1131 buf.dirent = dirent;
1133 error = vfs_readdir(file, fillonedir, &buf);
1144 struct linux_dirent32 {
1147 unsigned short d_reclen;
1151 struct getdents_callback32 {
1152 struct linux_dirent32 * current_dir;
1153 struct linux_dirent32 * previous;
1158 static int filldir(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
1159 unsigned int d_type)
1161 struct linux_dirent32 * dirent;
1162 struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
1163 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
1165 buf->error = -EINVAL; /* only used if we fail.. */
1166 if (reclen > buf->count)
1168 dirent = buf->previous;
1170 put_user(offset, &dirent->d_off);
1171 dirent = buf->current_dir;
1172 buf->previous = dirent;
1173 put_user(ino, &dirent->d_ino);
1174 put_user(reclen, &dirent->d_reclen);
1175 copy_to_user(dirent->d_name, name, namlen);
1176 put_user(0, dirent->d_name + namlen);
1177 ((char *) dirent) += reclen;
1178 buf->current_dir = dirent;
1179 buf->count -= reclen;
1183 asmlinkage int sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count)
1186 struct linux_dirent32 * lastdirent;
1187 struct getdents_callback32 buf;
1194 buf.current_dir = dirent;
1195 buf.previous = NULL;
1199 error = vfs_readdir(file, filldir, &buf);
1202 lastdirent = buf.previous;
1205 put_user(file->f_pos, &lastdirent->d_off);
1206 error = count - buf.count;
1214 /* end of readdir & getdents */
1217 * Ooo, nasty. We need here to frob 32-bit unsigned longs to
1218 * 64-bit unsigned longs.
1222 get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
1227 if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
1234 __get_user(l, ufdset);
1235 __get_user(h, ufdset+1);
1237 *fdset++ = h << 32 | l;
1241 __get_user(*fdset, ufdset);
1243 /* Tricky, must clear full unsigned long in the
1244 * kernel fdset at the end, this makes sure that
1247 memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
1253 set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
1266 __put_user(l, ufdset);
1267 __put_user(h, ufdset+1);
1272 __put_user(*fdset, ufdset);
1275 #define MAX_SELECT_SECONDS \
1276 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
1278 asmlinkage int sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
1281 struct compat_timeval *tvp = (struct compat_timeval *)AA(tvp_x);
1287 timeout = MAX_SCHEDULE_TIMEOUT;
1291 if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
1292 || (ret = __get_user(sec, &tvp->tv_sec))
1293 || (ret = __get_user(usec, &tvp->tv_usec)))
1297 if(sec < 0 || usec < 0)
1300 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
1301 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
1302 timeout += sec * (unsigned long) HZ;
1309 if (n > current->files->max_fdset)
1310 n = current->files->max_fdset;
1313 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
1314 * since we used fdset we need to allocate memory in units of
1318 size = FDS_BYTES(n);
1319 bits = kmalloc(6 * size, GFP_KERNEL);
1322 fds.in = (unsigned long *) bits;
1323 fds.out = (unsigned long *) (bits + size);
1324 fds.ex = (unsigned long *) (bits + 2*size);
1325 fds.res_in = (unsigned long *) (bits + 3*size);
1326 fds.res_out = (unsigned long *) (bits + 4*size);
1327 fds.res_ex = (unsigned long *) (bits + 5*size);
1329 nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
1330 if ((ret = get_fd_set32(nn, fds.in, inp)) ||
1331 (ret = get_fd_set32(nn, fds.out, outp)) ||
1332 (ret = get_fd_set32(nn, fds.ex, exp)))
1334 zero_fd_set(n, fds.res_in);
1335 zero_fd_set(n, fds.res_out);
1336 zero_fd_set(n, fds.res_ex);
1338 ret = do_select(n, &fds, &timeout);
1340 if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
1341 int sec = 0, usec = 0;
1344 usec = timeout % HZ;
1345 usec *= (1000000/HZ);
1347 put_user(sec, &tvp->tv_sec);
1348 put_user(usec, &tvp->tv_usec);
1354 ret = -ERESTARTNOHAND;
1355 if (signal_pending(current))
1360 set_fd_set32(nn, inp, fds.res_in);
1361 set_fd_set32(nn, outp, fds.res_out);
1362 set_fd_set32(nn, exp, fds.res_ex);
1370 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
1374 if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
1377 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
1378 err |= put_user(stat->ino, &statbuf->st_ino);
1379 err |= put_user(stat->mode, &statbuf->st_mode);
1380 err |= put_user(stat->nlink, &statbuf->st_nlink);
1381 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
1382 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
1383 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
1384 err |= put_user(stat->size, &statbuf->st_size);
1385 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
1386 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
1387 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
1388 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
1389 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
1390 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
1391 err |= put_user(stat->blksize, &statbuf->st_blksize);
1392 err |= put_user(stat->blocks, &statbuf->st_blocks);
1394 err |= put_user(0, &statbuf->__unused4[0]);
1395 err |= put_user(0, &statbuf->__unused4[1]);
1400 extern asmlinkage int sys_sysfs(int option, unsigned long arg1, unsigned long arg2);
1402 asmlinkage int sys32_sysfs(int option, u32 arg1, u32 arg2)
1404 return sys_sysfs(option, arg1, arg2);
1407 struct ncp_mount_data32 {
1409 unsigned int ncp_fd;
1410 compat_uid_t mounted_uid;
1411 compat_pid_t wdog_pid;
1412 unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
1413 unsigned int time_out;
1414 unsigned int retry_count;
1418 compat_mode_t file_mode;
1419 compat_mode_t dir_mode;
1422 static void *do_ncp_super_data_conv(void *raw_data)
1424 struct ncp_mount_data *n = (struct ncp_mount_data *)raw_data;
1425 struct ncp_mount_data32 *n32 = (struct ncp_mount_data32 *)raw_data;
1427 n->dir_mode = n32->dir_mode;
1428 n->file_mode = n32->file_mode;
1429 n->gid = low2highgid(n32->gid);
1430 n->uid = low2highuid(n32->uid);
1431 memmove (n->mounted_vol, n32->mounted_vol, (sizeof (n32->mounted_vol) + 3 * sizeof (unsigned int)));
1432 n->wdog_pid = n32->wdog_pid;
1433 n->mounted_uid = low2highuid(n32->mounted_uid);
1437 struct smb_mount_data32 {
1439 compat_uid_t mounted_uid;
1442 compat_mode_t file_mode;
1443 compat_mode_t dir_mode;
1446 static void *do_smb_super_data_conv(void *raw_data)
1448 struct smb_mount_data *s = (struct smb_mount_data *)raw_data;
1449 struct smb_mount_data32 *s32 = (struct smb_mount_data32 *)raw_data;
1451 if (s32->version != SMB_MOUNT_OLDVERSION)
1453 s->version = s32->version;
1454 s->mounted_uid = low2highuid(s32->mounted_uid);
1455 s->uid = low2highuid(s32->uid);
1456 s->gid = low2highgid(s32->gid);
1457 s->file_mode = s32->file_mode;
1458 s->dir_mode = s32->dir_mode;
1463 static int copy_mount_stuff_to_kernel(const void *user, unsigned long *kernel)
1467 struct vm_area_struct *vma;
1472 vma = find_vma(current->mm, (unsigned long)user);
1473 if(!vma || (unsigned long)user < vma->vm_start)
1475 if(!(vma->vm_flags & VM_READ))
1477 i = vma->vm_end - (unsigned long) user;
1478 if(PAGE_SIZE <= (unsigned long) i)
1480 if(!(page = __get_free_page(GFP_KERNEL)))
1482 if(copy_from_user((void *) page, user, i)) {
1490 #define SMBFS_NAME "smbfs"
1491 #define NCPFS_NAME "ncpfs"
1493 asmlinkage int sys32_mount(char *dev_name, char *dir_name, char *type, unsigned long new_flags, u32 data)
1495 unsigned long type_page = 0;
1496 unsigned long data_page = 0;
1497 unsigned long dev_page = 0;
1498 unsigned long dir_page = 0;
1499 int err, is_smb, is_ncp;
1501 is_smb = is_ncp = 0;
1503 err = copy_mount_stuff_to_kernel((const void *)type, &type_page);
1512 is_smb = !strcmp((char *)type_page, SMBFS_NAME);
1513 is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
1515 err = copy_mount_stuff_to_kernel((const void *)AA(data), &data_page);
1519 err = copy_mount_stuff_to_kernel(dev_name, &dev_page);
1523 err = copy_mount_stuff_to_kernel(dir_name, &dir_page);
1527 if (!is_smb && !is_ncp) {
1529 err = do_mount((char*)dev_page, (char*)dir_page,
1530 (char*)type_page, new_flags, (char*)data_page);
1534 do_ncp_super_data_conv((void *)data_page);
1536 do_smb_super_data_conv((void *)data_page);
1539 err = do_mount((char*)dev_page, (char*)dir_page,
1540 (char*)type_page, new_flags, (char*)data_page);
1543 free_page(dir_page);
1546 free_page(dev_page);
1549 free_page(data_page);
1552 free_page(type_page);
1567 unsigned short procs;
1568 unsigned short pads;
1571 unsigned int mem_unit;
1575 extern asmlinkage int sys_sysinfo(struct sysinfo *info);
1577 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
1581 mm_segment_t old_fs = get_fs ();
1584 ret = sys_sysinfo(&s);
1586 err = put_user (s.uptime, &info->uptime);
1587 err |= __put_user (s.loads[0], &info->loads[0]);
1588 err |= __put_user (s.loads[1], &info->loads[1]);
1589 err |= __put_user (s.loads[2], &info->loads[2]);
1590 err |= __put_user (s.totalram, &info->totalram);
1591 err |= __put_user (s.freeram, &info->freeram);
1592 err |= __put_user (s.sharedram, &info->sharedram);
1593 err |= __put_user (s.bufferram, &info->bufferram);
1594 err |= __put_user (s.totalswap, &info->totalswap);
1595 err |= __put_user (s.freeswap, &info->freeswap);
1596 err |= __put_user (s.procs, &info->procs);
1597 err |= __put_user (s.totalhigh, &info->totalhigh);
1598 err |= __put_user (s.freehigh, &info->freehigh);
1599 err |= __put_user (s.mem_unit, &info->mem_unit);
1605 extern asmlinkage int sys_sched_rr_get_interval(pid_t pid, struct timespec *interval);
1607 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
1608 struct compat_timespec *interval)
1612 mm_segment_t old_fs = get_fs ();
1615 ret = sys_sched_rr_get_interval(pid, &t);
1617 if (put_compat_timespec(&t, interval))
1622 extern asmlinkage int sys_rt_sigprocmask(int how, sigset_t *set, sigset_t *oset, size_t sigsetsize);
1624 asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t *set, compat_sigset_t *oset, compat_size_t sigsetsize)
1627 compat_sigset_t s32;
1629 mm_segment_t old_fs = get_fs();
1632 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
1634 switch (_NSIG_WORDS) {
1635 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
1636 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
1637 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
1638 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
1642 ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, sigsetsize);
1644 if (ret) return ret;
1646 switch (_NSIG_WORDS) {
1647 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
1648 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
1649 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
1650 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
1652 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
1658 extern asmlinkage int sys_rt_sigpending(sigset_t *set, size_t sigsetsize);
1660 asmlinkage int sys32_rt_sigpending(compat_sigset_t *set, compat_size_t sigsetsize)
1663 compat_sigset_t s32;
1665 mm_segment_t old_fs = get_fs();
1668 ret = sys_rt_sigpending(&s, sigsetsize);
1671 switch (_NSIG_WORDS) {
1672 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
1673 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
1674 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
1675 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
1677 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
1684 copy_siginfo_to_user32(siginfo_t32 *to, siginfo_t *from);
1687 sys32_rt_sigtimedwait(compat_sigset_t *uthese, siginfo_t32 *uinfo,
1688 struct compat_timespec *uts, compat_size_t sigsetsize)
1692 compat_sigset_t these32;
1697 /* XXX: Don't preclude handling different sized sigset_t's. */
1698 if (sigsetsize != sizeof(sigset_t))
1701 if (copy_from_user (&these32, uthese, sizeof(compat_sigset_t)))
1704 switch (_NSIG_WORDS) {
1705 case 4: these.sig[3] = these32.sig[6] | (((long)these32.sig[7]) << 32);
1706 case 3: these.sig[2] = these32.sig[4] | (((long)these32.sig[5]) << 32);
1707 case 2: these.sig[1] = these32.sig[2] | (((long)these32.sig[3]) << 32);
1708 case 1: these.sig[0] = these32.sig[0] | (((long)these32.sig[1]) << 32);
1712 * Invert the set of allowed signals to get those we
1715 sigdelsetmask(&these, sigmask(SIGKILL)|sigmask(SIGSTOP));
1719 if (get_compat_timespec(&ts, uts))
1721 if (ts.tv_nsec >= 1000000000L || ts.tv_nsec < 0
1726 spin_lock_irq(¤t->sighand->siglock);
1727 sig = dequeue_signal(current, &these, &info);
1729 /* None ready -- temporarily unblock those we're interested
1730 in so that we'll be awakened when they arrive. */
1731 current->real_blocked = current->blocked;
1732 sigandsets(¤t->blocked, ¤t->blocked, &these);
1733 recalc_sigpending();
1734 spin_unlock_irq(¤t->sighand->siglock);
1736 timeout = MAX_SCHEDULE_TIMEOUT;
1738 timeout = (timespec_to_jiffies(&ts)
1739 + (ts.tv_sec || ts.tv_nsec));
1741 current->state = TASK_INTERRUPTIBLE;
1742 timeout = schedule_timeout(timeout);
1744 spin_lock_irq(¤t->sighand->siglock);
1745 sig = dequeue_signal(current, &these, &info);
1746 current->blocked = current->real_blocked;
1747 siginitset(¤t->real_blocked, 0);
1748 recalc_sigpending();
1750 spin_unlock_irq(¤t->sighand->siglock);
1755 if (copy_siginfo_to_user32(uinfo, &info))
1767 extern asmlinkage int
1768 sys_rt_sigqueueinfo(int pid, int sig, siginfo_t *uinfo);
1771 sys32_rt_sigqueueinfo(int pid, int sig, siginfo_t32 *uinfo)
1775 mm_segment_t old_fs = get_fs();
1777 if (copy_from_user (&info, uinfo, 3*sizeof(int)) ||
1778 copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
1781 ret = sys_rt_sigqueueinfo(pid, sig, &info);
1786 extern void check_pending(int signum);
1789 * count32() counts the number of arguments/envelopes
1791 static int count32(u32 * argv)
1799 error = get_user(p,argv);
1800 if (error) return error;
1809 * 'copy_string32()' copies argument/envelope strings from user
1810 * memory to free pages in kernel mem. These are in a format ready
1811 * to be put directly into the top of new user memory.
1813 static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
1815 while (argc-- > 0) {
1820 if (get_user(str, argv + argc) ||
1822 !(len = strnlen_user((char *)A(str), bprm->p)))
1834 int offset, bytes_to_copy, new, err;
1836 offset = pos % PAGE_SIZE;
1837 page = bprm->page[pos / PAGE_SIZE];
1840 page = alloc_page(GFP_USER);
1841 bprm->page[pos / PAGE_SIZE] = page;
1846 kaddr = (char *)kmap(page);
1849 memset(kaddr, 0, offset);
1850 bytes_to_copy = PAGE_SIZE - offset;
1851 if (bytes_to_copy > len) {
1852 bytes_to_copy = len;
1854 memset(kaddr+offset+len, 0,
1855 PAGE_SIZE-offset-len);
1858 err = copy_from_user(kaddr + offset, (char *)A(str),
1865 pos += bytes_to_copy;
1866 str += bytes_to_copy;
1867 len -= bytes_to_copy;
1874 * sys32_execve() executes a new program.
1877 do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
1879 struct linux_binprm bprm;
1884 sched_balance_exec();
1886 file = open_exec(filename);
1888 retval = PTR_ERR(file);
1892 bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
1893 memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
1896 bprm.filename = filename;
1897 bprm.interp = filename;
1901 bprm.mm = mm_alloc();
1906 /* init_new_context is empty for s390x. */
1908 bprm.argc = count32(argv);
1909 if ((retval = bprm.argc) < 0)
1912 bprm.envc = count32(envp);
1913 if ((retval = bprm.envc) < 0)
1916 retval = security_bprm_alloc(&bprm);
1920 retval = prepare_binprm(&bprm);
1924 retval = copy_strings_kernel(1, &bprm.filename, &bprm);
1929 retval = copy_strings32(bprm.envc, envp, &bprm);
1933 retval = copy_strings32(bprm.argc, argv, &bprm);
1937 retval = search_binary_handler(&bprm, regs);
1939 /* execve success */
1940 security_bprm_free(&bprm);
1945 /* Something went wrong, return the inode and free the argument pages*/
1946 for (i=0 ; i<MAX_ARG_PAGES ; i++) {
1947 struct page * page = bprm.page[i];
1953 security_bprm_free(&bprm);
1961 allow_write_access(bprm.file);
1969 * sys32_execve() executes a new program after the asm stub has set
1970 * things up for us. This should basically do what I want it to.
1973 sys32_execve(struct pt_regs regs)
1978 filename = getname((char *)A(regs.orig_gpr2));
1979 error = PTR_ERR(filename);
1980 if (IS_ERR(filename))
1982 error = do_execve32(filename, (u32 *)A(regs.gprs[3]), (u32 *)A(regs.gprs[4]), ®s);
1985 current->ptrace &= ~PT_DTRACE;
1986 current->thread.fp_regs.fpc=0;
1987 __asm__ __volatile__
1998 #ifdef CONFIG_MODULES
2000 extern asmlinkage int sys_init_module(const char *name_user, struct module *mod_user);
2002 /* Hey, when you're trying to init module, take time and prepare us a nice 64bit
2003 * module structure, even if from 32bit modutils... Why to pollute kernel... :))
2005 asmlinkage int sys32_init_module(const char *name_user, struct module *mod_user)
2007 return sys_init_module(name_user, mod_user);
2010 extern asmlinkage int sys_delete_module(const char *name_user);
2012 asmlinkage int sys32_delete_module(const char *name_user)
2014 return sys_delete_module(name_user);
2017 struct module_info32 {
2024 #else /* CONFIG_MODULES */
2027 sys32_init_module(const char *name_user, struct module *mod_user)
2033 sys32_delete_module(const char *name_user)
2038 #endif /* CONFIG_MODULES */
2040 /* Stuff for NFS server syscalls... */
2041 struct nfsctl_svc32 {
2046 struct nfsctl_client32 {
2047 s8 cl32_ident[NFSCLNT_IDMAX+1];
2049 struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
2052 u8 cl32_fhkey[NFSCLNT_KEYMAX];
2055 struct nfsctl_export32 {
2056 s8 ex32_client[NFSCLNT_IDMAX+1];
2057 s8 ex32_path[NFS_MAXPATHLEN+1];
2058 compat_dev_t ex32_dev;
2059 compat_ino_t ex32_ino;
2061 compat_uid_t ex32_anon_uid;
2062 compat_gid_t ex32_anon_gid;
2065 struct nfsctl_fdparm32 {
2066 struct sockaddr gd32_addr;
2067 s8 gd32_path[NFS_MAXPATHLEN+1];
2071 struct nfsctl_fsparm32 {
2072 struct sockaddr gd32_addr;
2073 s8 gd32_path[NFS_MAXPATHLEN+1];
2077 struct nfsctl_arg32 {
2078 s32 ca32_version; /* safeguard */
2080 struct nfsctl_svc32 u32_svc;
2081 struct nfsctl_client32 u32_client;
2082 struct nfsctl_export32 u32_export;
2083 struct nfsctl_fdparm32 u32_getfd;
2084 struct nfsctl_fsparm32 u32_getfs;
2086 #define ca32_svc u.u32_svc
2087 #define ca32_client u.u32_client
2088 #define ca32_export u.u32_export
2089 #define ca32_getfd u.u32_getfd
2090 #define ca32_getfs u.u32_getfs
2091 #define ca32_authd u.u32_authd
2094 union nfsctl_res32 {
2095 __u8 cr32_getfh[NFS_FHSIZE];
2096 struct knfsd_fh cr32_getfs;
2099 static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2103 err = __get_user(karg->ca_version, &arg32->ca32_version);
2104 err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
2105 err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
2109 static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2113 err = __get_user(karg->ca_version, &arg32->ca32_version);
2114 err |= copy_from_user(&karg->ca_client.cl_ident[0],
2115 &arg32->ca32_client.cl32_ident[0],
2117 err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
2118 err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
2119 &arg32->ca32_client.cl32_addrlist[0],
2120 (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
2121 err |= __get_user(karg->ca_client.cl_fhkeytype,
2122 &arg32->ca32_client.cl32_fhkeytype);
2123 err |= __get_user(karg->ca_client.cl_fhkeylen,
2124 &arg32->ca32_client.cl32_fhkeylen);
2125 err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
2126 &arg32->ca32_client.cl32_fhkey[0],
2131 static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2135 err = __get_user(karg->ca_version, &arg32->ca32_version);
2136 err |= copy_from_user(&karg->ca_export.ex_client[0],
2137 &arg32->ca32_export.ex32_client[0],
2139 err |= copy_from_user(&karg->ca_export.ex_path[0],
2140 &arg32->ca32_export.ex32_path[0],
2142 err |= __get_user(karg->ca_export.ex_dev,
2143 &arg32->ca32_export.ex32_dev);
2144 err |= __get_user(karg->ca_export.ex_ino,
2145 &arg32->ca32_export.ex32_ino);
2146 err |= __get_user(karg->ca_export.ex_flags,
2147 &arg32->ca32_export.ex32_flags);
2148 err |= __get_user(karg->ca_export.ex_anon_uid,
2149 &arg32->ca32_export.ex32_anon_uid);
2150 err |= __get_user(karg->ca_export.ex_anon_gid,
2151 &arg32->ca32_export.ex32_anon_gid);
2152 karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
2153 karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
2157 static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2161 err = __get_user(karg->ca_version, &arg32->ca32_version);
2162 err |= copy_from_user(&karg->ca_getfd.gd_addr,
2163 &arg32->ca32_getfd.gd32_addr,
2164 (sizeof(struct sockaddr)));
2165 err |= copy_from_user(&karg->ca_getfd.gd_path,
2166 &arg32->ca32_getfd.gd32_path,
2167 (NFS_MAXPATHLEN+1));
2168 err |= __get_user(karg->ca_getfd.gd_version,
2169 &arg32->ca32_getfd.gd32_version);
2173 static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2177 err = __get_user(karg->ca_version, &arg32->ca32_version);
2178 err |= copy_from_user(&karg->ca_getfs.gd_addr,
2179 &arg32->ca32_getfs.gd32_addr,
2180 (sizeof(struct sockaddr)));
2181 err |= copy_from_user(&karg->ca_getfs.gd_path,
2182 &arg32->ca32_getfs.gd32_path,
2183 (NFS_MAXPATHLEN+1));
2184 err |= __get_user(karg->ca_getfs.gd_maxlen,
2185 &arg32->ca32_getfs.gd32_maxlen);
2189 /* This really doesn't need translations, we are only passing
2190 * back a union which contains opaque nfs file handle data.
2192 static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
2194 return copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0;
2198 asmlinkage long sys_ni_syscall(void);
2201 int asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
2203 struct nfsctl_arg *karg = NULL;
2204 union nfsctl_res *kres = NULL;
2208 karg = kmalloc(sizeof(*karg), GFP_USER);
2212 kres = kmalloc(sizeof(*kres), GFP_USER);
2220 err = nfs_svc32_trans(karg, arg32);
2222 case NFSCTL_ADDCLIENT:
2223 err = nfs_clnt32_trans(karg, arg32);
2225 case NFSCTL_DELCLIENT:
2226 err = nfs_clnt32_trans(karg, arg32);
2229 case NFSCTL_UNEXPORT:
2230 err = nfs_exp32_trans(karg, arg32);
2233 err = nfs_getfd32_trans(karg, arg32);
2236 err = nfs_getfs32_trans(karg, arg32);
2246 err = sys_nfsservctl(cmd, karg, kres);
2252 if((cmd == NFSCTL_GETFD) ||
2253 (cmd == NFSCTL_GETFS))
2254 err = nfs_getfh32_res_trans(kres, res32);
2264 /* Translations due to time_t size differences. Which affects all
2265 sorts of things, like timeval and itimerval. */
2267 extern struct timezone sys_tz;
2269 asmlinkage int sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
2273 do_gettimeofday(&ktv);
2274 if (put_tv32(tv, &ktv))
2278 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
2284 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
2288 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
2290 if (__get_user(o->tv_sec, &i->tv_sec))
2292 if (__get_user(usec, &i->tv_usec))
2294 o->tv_nsec = usec * 1000;
2298 asmlinkage int sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
2300 struct timespec kts;
2301 struct timezone ktz;
2304 if (get_ts32(&kts, tv))
2308 if (copy_from_user(&ktz, tz, sizeof(ktz)))
2312 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
2315 asmlinkage int sys_utimes(char *, struct timeval *);
2317 asmlinkage int sys32_utimes(char *filename, struct compat_timeval *tvs)
2320 struct timeval ktvs[2];
2321 mm_segment_t old_fs;
2324 kfilename = getname(filename);
2325 ret = PTR_ERR(kfilename);
2326 if (!IS_ERR(kfilename)) {
2328 if (get_tv32(&ktvs[0], tvs) ||
2329 get_tv32(&ktvs[1], 1+tvs))
2335 ret = sys_utimes(kfilename, &ktvs[0]);
2343 /* These are here just in case some old sparc32 binary calls it. */
2344 asmlinkage int sys32_pause(void)
2346 current->state = TASK_INTERRUPTIBLE;
2348 return -ERESTARTNOHAND;
2351 extern asmlinkage int sys_prctl(int option, unsigned long arg2, unsigned long arg3,
2352 unsigned long arg4, unsigned long arg5);
2354 asmlinkage int sys32_prctl(int option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
2356 return sys_prctl(option,
2357 (unsigned long) arg2,
2358 (unsigned long) arg3,
2359 (unsigned long) arg4,
2360 (unsigned long) arg5);
2364 extern asmlinkage ssize_t sys_pread64(unsigned int fd, char * buf,
2365 size_t count, loff_t pos);
2367 extern asmlinkage ssize_t sys_pwrite64(unsigned int fd, const char * buf,
2368 size_t count, loff_t pos);
2370 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd, char *ubuf,
2371 compat_size_t count, u32 poshi, u32 poslo)
2373 if ((compat_ssize_t) count < 0)
2375 return sys_pread64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
2378 asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd, char *ubuf,
2379 compat_size_t count, u32 poshi, u32 poslo)
2381 if ((compat_ssize_t) count < 0)
2383 return sys_pwrite64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
2386 extern asmlinkage ssize_t sys_readahead(int fd, loff_t offset, size_t count);
2388 asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count)
2390 return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
2393 extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t *offset, size_t count);
2395 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 count)
2397 mm_segment_t old_fs = get_fs();
2401 if (offset && get_user(of, offset))
2405 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
2408 if (!ret && offset && put_user(of, offset))
2414 extern asmlinkage ssize_t sys_sendfile64(int out_fd, int in_fd,
2415 loff_t *offset, size_t count);
2417 asmlinkage int sys32_sendfile64(int out_fd, int in_fd,
2418 compat_loff_t *offset, s32 count)
2420 mm_segment_t old_fs = get_fs();
2424 if (offset && get_user(lof, offset))
2428 ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
2431 if (offset && put_user(lof, offset))
2437 /* Handle adjtimex compatibility. */
2441 s32 offset, freq, maxerror, esterror;
2442 s32 status, constant, precision, tolerance;
2443 struct compat_timeval time;
2445 s32 ppsfreq, jitter, shift, stabil;
2446 s32 jitcnt, calcnt, errcnt, stbcnt;
2447 s32 :32; s32 :32; s32 :32; s32 :32;
2448 s32 :32; s32 :32; s32 :32; s32 :32;
2449 s32 :32; s32 :32; s32 :32; s32 :32;
2452 extern int do_adjtimex(struct timex *);
2454 asmlinkage int sys32_adjtimex(struct timex32 *utp)
2459 memset(&txc, 0, sizeof(struct timex));
2461 if(get_user(txc.modes, &utp->modes) ||
2462 __get_user(txc.offset, &utp->offset) ||
2463 __get_user(txc.freq, &utp->freq) ||
2464 __get_user(txc.maxerror, &utp->maxerror) ||
2465 __get_user(txc.esterror, &utp->esterror) ||
2466 __get_user(txc.status, &utp->status) ||
2467 __get_user(txc.constant, &utp->constant) ||
2468 __get_user(txc.precision, &utp->precision) ||
2469 __get_user(txc.tolerance, &utp->tolerance) ||
2470 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
2471 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
2472 __get_user(txc.tick, &utp->tick) ||
2473 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
2474 __get_user(txc.jitter, &utp->jitter) ||
2475 __get_user(txc.shift, &utp->shift) ||
2476 __get_user(txc.stabil, &utp->stabil) ||
2477 __get_user(txc.jitcnt, &utp->jitcnt) ||
2478 __get_user(txc.calcnt, &utp->calcnt) ||
2479 __get_user(txc.errcnt, &utp->errcnt) ||
2480 __get_user(txc.stbcnt, &utp->stbcnt))
2483 ret = do_adjtimex(&txc);
2485 if(put_user(txc.modes, &utp->modes) ||
2486 __put_user(txc.offset, &utp->offset) ||
2487 __put_user(txc.freq, &utp->freq) ||
2488 __put_user(txc.maxerror, &utp->maxerror) ||
2489 __put_user(txc.esterror, &utp->esterror) ||
2490 __put_user(txc.status, &utp->status) ||
2491 __put_user(txc.constant, &utp->constant) ||
2492 __put_user(txc.precision, &utp->precision) ||
2493 __put_user(txc.tolerance, &utp->tolerance) ||
2494 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
2495 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
2496 __put_user(txc.tick, &utp->tick) ||
2497 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
2498 __put_user(txc.jitter, &utp->jitter) ||
2499 __put_user(txc.shift, &utp->shift) ||
2500 __put_user(txc.stabil, &utp->stabil) ||
2501 __put_user(txc.jitcnt, &utp->jitcnt) ||
2502 __put_user(txc.calcnt, &utp->calcnt) ||
2503 __put_user(txc.errcnt, &utp->errcnt) ||
2504 __put_user(txc.stbcnt, &utp->stbcnt))
2510 extern asmlinkage long sys_setpriority(int which, int who, int niceval);
2512 asmlinkage int sys_setpriority32(u32 which, u32 who, u32 niceval)
2514 return sys_setpriority((int) which,
2519 struct __sysctl_args32 {
2529 extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
2531 struct __sysctl_args32 tmp;
2533 size_t oldlen, *oldlenp = NULL;
2534 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
2536 if (copy_from_user(&tmp, args, sizeof(tmp)))
2539 if (tmp.oldval && tmp.oldlenp) {
2540 /* Duh, this is ugly and might not work if sysctl_args
2541 is in read-only memory, but do_sysctl does indirectly
2542 a lot of uaccess in both directions and we'd have to
2543 basically copy the whole sysctl.c here, and
2544 glibc's __sysctl uses rw memory for the structure
2546 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
2547 put_user(oldlen, (size_t *)addr))
2549 oldlenp = (size_t *)addr;
2553 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
2554 oldlenp, (void *)A(tmp.newval), tmp.newlen);
2558 if (get_user(oldlen, (size_t *)addr) ||
2559 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
2562 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
2567 struct stat64_emu31 {
2568 unsigned long long st_dev;
2569 unsigned int __pad1;
2570 #define STAT64_HAS_BROKEN_ST_INO 1
2572 unsigned int st_mode;
2573 unsigned int st_nlink;
2576 unsigned long long st_rdev;
2577 unsigned int __pad3;
2580 unsigned char __pad4[4];
2581 u32 __pad5; /* future possible st_blocks high bits */
2582 u32 st_blocks; /* Number 512-byte blocks allocated. */
2588 u32 __pad8; /* will be high 32 bits of ctime someday */
2589 unsigned long st_ino;
2592 static int cp_stat64(struct stat64_emu31 *ubuf, struct kstat *stat)
2594 struct stat64_emu31 tmp;
2596 memset(&tmp, 0, sizeof(tmp));
2598 tmp.st_dev = huge_encode_dev(stat->dev);
2599 tmp.st_ino = stat->ino;
2600 tmp.__st_ino = (u32)stat->ino;
2601 tmp.st_mode = stat->mode;
2602 tmp.st_nlink = (unsigned int)stat->nlink;
2603 tmp.st_uid = stat->uid;
2604 tmp.st_gid = stat->gid;
2605 tmp.st_rdev = huge_encode_dev(stat->rdev);
2606 tmp.st_size = stat->size;
2607 tmp.st_blksize = (u32)stat->blksize;
2608 tmp.st_blocks = (u32)stat->blocks;
2609 tmp.st_atime = (u32)stat->atime.tv_sec;
2610 tmp.st_mtime = (u32)stat->mtime.tv_sec;
2611 tmp.st_ctime = (u32)stat->ctime.tv_sec;
2613 return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
2616 asmlinkage long sys32_stat64(char * filename, struct stat64_emu31 * statbuf, long flags)
2619 int ret = vfs_stat(filename, &stat);
2621 ret = cp_stat64(statbuf, &stat);
2625 asmlinkage long sys32_lstat64(char * filename, struct stat64_emu31 * statbuf, long flags)
2628 int ret = vfs_lstat(filename, &stat);
2630 ret = cp_stat64(statbuf, &stat);
2634 asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 * statbuf, long flags)
2637 int ret = vfs_fstat(fd, &stat);
2639 ret = cp_stat64(statbuf, &stat);
2644 * Linux/i386 didn't use to be able to handle more than
2645 * 4 system call parameters, so these system calls used a memory
2646 * block for parameter passing..
2649 struct mmap_arg_struct_emu31 {
2658 /* common code for old and new mmaps */
2659 static inline long do_mmap2(
2660 unsigned long addr, unsigned long len,
2661 unsigned long prot, unsigned long flags,
2662 unsigned long fd, unsigned long pgoff)
2664 struct file * file = NULL;
2665 unsigned long error = -EBADF;
2667 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
2668 if (!(flags & MAP_ANONYMOUS)) {
2674 down_write(¤t->mm->mmap_sem);
2675 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
2676 if (!IS_ERR((void *) error) && error + len >= 0x80000000ULL) {
2677 /* Result is out of bounds. */
2678 do_munmap(current->mm, addr, len);
2681 up_write(¤t->mm->mmap_sem);
2690 asmlinkage unsigned long
2691 old32_mmap(struct mmap_arg_struct_emu31 *arg)
2693 struct mmap_arg_struct_emu31 a;
2694 int error = -EFAULT;
2696 if (copy_from_user(&a, arg, sizeof(a)))
2700 if (a.offset & ~PAGE_MASK)
2703 error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
2709 sys32_mmap2(struct mmap_arg_struct_emu31 *arg)
2711 struct mmap_arg_struct_emu31 a;
2712 int error = -EFAULT;
2714 if (copy_from_user(&a, arg, sizeof(a)))
2716 error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
2721 asmlinkage ssize_t sys_read(unsigned int fd, char * buf, size_t count);
2723 asmlinkage compat_ssize_t sys32_read(unsigned int fd, char * buf, size_t count)
2725 if ((compat_ssize_t) count < 0)
2728 return sys_read(fd, buf, count);
2731 asmlinkage ssize_t sys_write(unsigned int fd, const char * buf, size_t count);
2733 asmlinkage compat_ssize_t sys32_write(unsigned int fd, char * buf, size_t count)
2735 if ((compat_ssize_t) count < 0)
2738 return sys_write(fd, buf, count);
2741 asmlinkage int sys32_clone(struct pt_regs regs)
2743 unsigned long clone_flags;
2744 unsigned long newsp;
2745 int *parent_tidptr, *child_tidptr;
2747 clone_flags = regs.gprs[3] & 0xffffffffUL;
2748 newsp = regs.orig_gpr2 & 0x7fffffffUL;
2749 parent_tidptr = (int *) (regs.gprs[4] & 0x7fffffffUL);
2750 child_tidptr = (int *) (regs.gprs[5] & 0x7fffffffUL);
2752 newsp = regs.gprs[15];
2753 return do_fork(clone_flags & ~CLONE_IDLETASK, newsp, ®s, 0,
2754 parent_tidptr, child_tidptr);
2758 * Wrapper function for sys_timer_create.
2760 extern asmlinkage long
2761 sys_timer_create(clockid_t, struct sigevent *, timer_t *);
2764 sys32_timer_create(clockid_t which_clock, struct sigevent32 *se32,
2769 mm_segment_t old_fs;
2773 return sys_timer_create(which_clock, NULL, timer_id);
2775 /* XXX: converting se32 to se is filthy because of the
2776 * two union members. For now it is ok, because the pointers
2777 * are not touched in kernel.
2779 memset(&se, 0, sizeof(se));
2780 if (get_user(se.sigev_value.sival_int, &se32->sigev_value.sival_int) ||
2781 get_user(se.sigev_signo, &se32->sigev_signo) ||
2782 get_user(se.sigev_notify, &se32->sigev_notify) ||
2783 copy_from_user(&se._sigev_un._pad, &se32->_sigev_un._pad,
2784 sizeof(se._sigev_un._pad)))
2789 ret = sys_timer_create(which_clock, &se, &ktimer_id);
2793 ret = put_user (ktimer_id, timer_id);