2 * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Based on
5 * Copyright (C) 2000 VA Linux Co
6 * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
7 * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
8 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
9 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
10 * Copyright (C) 2000 Hewlett-Packard Co.
11 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
12 * Copyright (C) 2000,2001,2002 Andi Kleen, SuSE Labs (x86-64 port)
14 * These routines maintain argument size conversion between 32bit and 64bit
15 * environment. In 2.5 most of this should be moved to a generic directory.
17 * This file assumes that there is a hole at the end of user address space.
19 * $Id: sys_ia32.c,v 1.70 2004/03/03 23:36:43 ak Exp $
22 #include <linux/config.h>
23 #include <linux/kernel.h>
24 #include <linux/sched.h>
26 #include <linux/file.h>
27 #include <linux/signal.h>
28 #include <linux/utime.h>
29 #include <linux/resource.h>
30 #include <linux/times.h>
31 #include <linux/utsname.h>
32 #include <linux/timex.h>
33 #include <linux/smp.h>
34 #include <linux/smp_lock.h>
35 #include <linux/sem.h>
36 #include <linux/msg.h>
38 #include <linux/shm.h>
39 #include <linux/slab.h>
40 #include <linux/uio.h>
41 #include <linux/nfs_fs.h>
42 #include <linux/smb_fs.h>
43 #include <linux/smb_mount.h>
44 #include <linux/ncp_fs.h>
45 #include <linux/quota.h>
46 #include <linux/module.h>
47 #include <linux/sunrpc/svc.h>
48 #include <linux/nfsd/nfsd.h>
49 #include <linux/nfsd/cache.h>
50 #include <linux/nfsd/xdr.h>
51 #include <linux/nfsd/syscall.h>
52 #include <linux/poll.h>
53 #include <linux/personality.h>
54 #include <linux/stat.h>
55 #include <linux/ipc.h>
56 #include <linux/rwsem.h>
57 #include <linux/binfmts.h>
58 #include <linux/init.h>
59 #include <linux/highuid.h>
61 #include <asm/types.h>
62 #include <asm/uaccess.h>
63 #include <asm/semaphore.h>
65 #include <asm/atomic.h>
72 #define A(__x) ((unsigned long)(__x))
73 #define AA(__x) ((unsigned long)(__x))
74 #define ROUND_UP(x,a) ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
75 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
82 #define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
83 #define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
84 #define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
85 #define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
86 extern int overflowuid,overflowgid;
88 typedef u16 old_uid_t;
89 typedef u16 old_gid_t;
91 #include "../../../kernel/uid16.c"
94 putstat(struct stat32 *ubuf, struct stat *kbuf)
96 if (kbuf->st_size > 0x7fffffff)
98 if (verify_area(VERIFY_WRITE, ubuf, sizeof(struct stat32)) ||
99 __put_user (kbuf->st_dev, &ubuf->st_dev) ||
100 __put_user (kbuf->st_ino, &ubuf->st_ino) ||
101 __put_user (kbuf->st_mode, &ubuf->st_mode) ||
102 __put_user (kbuf->st_nlink, &ubuf->st_nlink) ||
103 __put_user (high2lowuid(kbuf->st_uid), &ubuf->st_uid) ||
104 __put_user (high2lowgid(kbuf->st_gid), &ubuf->st_gid) ||
105 __put_user (kbuf->st_rdev, &ubuf->st_rdev) ||
106 __put_user (kbuf->st_size, &ubuf->st_size) ||
107 __put_user (kbuf->st_atime, &ubuf->st_atime) ||
108 __put_user (kbuf->st_mtime, &ubuf->st_mtime) ||
109 __put_user (kbuf->st_ctime, &ubuf->st_ctime) ||
110 __put_user (kbuf->st_blksize, &ubuf->st_blksize) ||
111 __put_user (kbuf->st_blocks, &ubuf->st_blocks))
116 extern asmlinkage long sys_newstat(char * filename, struct stat * statbuf);
119 sys32_newstat(char * filename, struct stat32 *statbuf)
124 mm_segment_t old_fs = get_fs();
126 name = getname(filename);
128 return PTR_ERR(name);
130 ret = sys_newstat(name, &s);
135 return putstat(statbuf, &s);
138 extern asmlinkage long sys_newlstat(char * filename, struct stat * statbuf);
141 sys32_newlstat(char * filename, struct stat32 *statbuf)
146 mm_segment_t old_fs = get_fs();
148 name = getname(filename);
150 return PTR_ERR(name);
152 ret = sys_newlstat(name, &s);
157 return putstat(statbuf, &s);
160 extern asmlinkage long sys_newfstat(unsigned int fd, struct stat * statbuf);
163 sys32_newfstat(unsigned int fd, struct stat32 *statbuf)
167 mm_segment_t old_fs = get_fs();
170 ret = sys_newfstat(fd, &s);
174 return putstat(statbuf, &s);
177 extern long sys_truncate(char *, loff_t);
180 sys32_truncate64(char * filename, unsigned long offset_low, unsigned long offset_high)
182 return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
185 extern long sys_ftruncate(int, loff_t);
188 sys32_ftruncate64(unsigned int fd, unsigned long offset_low, unsigned long offset_high)
190 return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
193 /* Another set for IA32/LFS -- x86_64 struct stat is different due to
194 support for 64bit inode numbers. */
197 putstat64(struct stat64 *ubuf, struct stat *kbuf)
199 if (verify_area(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
200 __put_user (kbuf->st_dev, &ubuf->st_dev) ||
201 __put_user (kbuf->st_ino, &ubuf->__st_ino) ||
202 __put_user (kbuf->st_ino, &ubuf->st_ino) ||
203 __put_user (kbuf->st_mode, &ubuf->st_mode) ||
204 __put_user (kbuf->st_nlink, &ubuf->st_nlink) ||
205 __put_user (kbuf->st_uid, &ubuf->st_uid) ||
206 __put_user (kbuf->st_gid, &ubuf->st_gid) ||
207 __put_user (kbuf->st_rdev, &ubuf->st_rdev) ||
208 __put_user (kbuf->st_size, &ubuf->st_size) ||
209 __put_user (kbuf->st_atime, &ubuf->st_atime) ||
210 __put_user (kbuf->st_mtime, &ubuf->st_mtime) ||
211 __put_user (kbuf->st_ctime, &ubuf->st_ctime) ||
212 __put_user (kbuf->st_blksize, &ubuf->st_blksize) ||
213 __put_user (kbuf->st_blocks, &ubuf->st_blocks))
219 sys32_stat64(char * filename, struct stat64 *statbuf)
224 mm_segment_t old_fs = get_fs();
226 name = getname(filename);
228 return PTR_ERR(name);
230 ret = sys_newstat(name, &s);
235 return putstat64(statbuf, &s);
239 sys32_lstat64(char * filename, struct stat64 *statbuf)
244 mm_segment_t old_fs = get_fs();
246 name = getname(filename);
248 return PTR_ERR(name);
250 ret = sys_newlstat(name, &s);
255 return putstat64(statbuf, &s);
259 sys32_fstat64(unsigned int fd, struct stat64 *statbuf)
263 mm_segment_t old_fs = get_fs();
266 ret = sys_newfstat(fd, &s);
270 return putstat64(statbuf, &s);
273 /* Don't set O_LARGEFILE implicitely. */
274 asmlinkage long sys32_open(const char * filename, int flags, int mode)
279 tmp = getname(filename);
282 fd = get_unused_fd();
284 struct file *f = filp_open(tmp, flags, mode);
302 * Linux/i386 didn't use to be able to handle more than
303 * 4 system call parameters, so these system calls used a memory
304 * block for parameter passing..
307 struct mmap_arg_struct {
317 sys32_mmap(struct mmap_arg_struct *arg)
319 struct mmap_arg_struct a;
320 struct file *file = NULL;
321 unsigned long retval;
322 struct mm_struct *mm ;
324 if (copy_from_user(&a, arg, sizeof(a)))
327 if (a.offset & ~PAGE_MASK)
330 if (!(a.flags & MAP_ANONYMOUS)) {
336 if (a.prot & PROT_READ)
340 down_write(&mm->mmap_sem);
341 retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, a.offset>>PAGE_SHIFT);
345 up_write(&mm->mmap_sem);
350 extern asmlinkage long sys_mprotect(unsigned long start,size_t len,unsigned long prot);
352 asmlinkage long sys32_mprotect(unsigned long start, size_t len, unsigned long prot)
354 if (prot & PROT_READ)
356 return sys_mprotect(start,len,prot);
365 retval = do_pipe(fds);
368 if (copy_to_user(fd, fds, sizeof(fds)))
375 sys32_rt_sigaction(int sig, struct sigaction32 *act,
376 struct sigaction32 *oact, unsigned int sigsetsize)
378 struct k_sigaction new_ka, old_ka;
382 /* XXX: Don't preclude handling different sized sigset_t's. */
383 if (sigsetsize != sizeof(sigset32_t))
387 u32 handler, restorer;
389 if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
390 __get_user(handler, &act->sa_handler) ||
391 __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
392 __get_user(restorer, &act->sa_restorer)||
393 __copy_from_user(&set32, &act->sa_mask, sizeof(sigset32_t)))
395 new_ka.sa.sa_handler = (void*)(u64)handler;
396 new_ka.sa.sa_restorer = (void*)(u64)restorer;
398 /* FIXME: here we rely on _IA32_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
399 switch (_NSIG_WORDS) {
400 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
401 | (((long)set32.sig[7]) << 32);
402 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4]
403 | (((long)set32.sig[5]) << 32);
404 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2]
405 | (((long)set32.sig[3]) << 32);
406 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0]
407 | (((long)set32.sig[1]) << 32);
411 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
414 /* FIXME: here we rely on _IA32_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
415 switch (_NSIG_WORDS) {
417 set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
418 set32.sig[6] = old_ka.sa.sa_mask.sig[3];
420 set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32);
421 set32.sig[4] = old_ka.sa.sa_mask.sig[2];
423 set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32);
424 set32.sig[2] = old_ka.sa.sa_mask.sig[1];
426 set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32);
427 set32.sig[0] = old_ka.sa.sa_mask.sig[0];
429 if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
430 __put_user((long)old_ka.sa.sa_handler, &oact->sa_handler) ||
431 __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer) ||
432 __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
433 __copy_to_user(&oact->sa_mask, &set32, sizeof(sigset32_t)))
441 sys32_sigaction (int sig, struct old_sigaction32 *act, struct old_sigaction32 *oact)
443 struct k_sigaction new_ka, old_ka;
448 u32 handler, restorer;
450 if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
451 __get_user(handler, &act->sa_handler) ||
452 __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
453 __get_user(restorer, &act->sa_restorer) ||
454 __get_user(mask, &act->sa_mask))
456 new_ka.sa.sa_handler = (void*)(u64)handler;
457 new_ka.sa.sa_restorer = (void*)(u64)restorer;
458 siginitset(&new_ka.sa.sa_mask, mask);
461 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
464 if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
465 __put_user((long)old_ka.sa.sa_handler, &oact->sa_handler) ||
466 __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer) ||
467 __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
468 __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
475 extern asmlinkage long sys_rt_sigprocmask(int how, sigset_t *set, sigset_t *oset,
479 sys32_rt_sigprocmask(int how, sigset32_t *set, sigset32_t *oset,
480 unsigned int sigsetsize)
485 mm_segment_t old_fs = get_fs();
488 if (copy_from_user (&s32, set, sizeof(sigset32_t)))
490 switch (_NSIG_WORDS) {
491 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
492 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
493 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
494 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
498 ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL,
503 switch (_NSIG_WORDS) {
504 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
505 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
506 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
507 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
509 if (copy_to_user (oset, &s32, sizeof(sigset32_t)))
516 put_statfs (struct statfs32 *ubuf, struct statfs *kbuf)
518 if (verify_area(VERIFY_WRITE, ubuf, sizeof(struct statfs32)) ||
519 __put_user (kbuf->f_type, &ubuf->f_type) ||
520 __put_user (kbuf->f_bsize, &ubuf->f_bsize) ||
521 __put_user (kbuf->f_blocks, &ubuf->f_blocks) ||
522 __put_user (kbuf->f_bfree, &ubuf->f_bfree) ||
523 __put_user (kbuf->f_bavail, &ubuf->f_bavail) ||
524 __put_user (kbuf->f_files, &ubuf->f_files) ||
525 __put_user (kbuf->f_ffree, &ubuf->f_ffree) ||
526 __put_user (kbuf->f_namelen, &ubuf->f_namelen) ||
527 __put_user (kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]) ||
528 __put_user (kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]) ||
529 __put_user (0, &ubuf->f_spare[0]) ||
530 __put_user (0, &ubuf->f_spare[1]) ||
531 __put_user (0, &ubuf->f_spare[2]) ||
532 __put_user (0, &ubuf->f_spare[3]) ||
533 __put_user (0, &ubuf->f_spare[4]) ||
534 __put_user (0, &ubuf->f_spare[5]))
539 extern asmlinkage long sys_statfs(const char * path, struct statfs * buf);
542 sys32_statfs(const char * path, struct statfs32 *buf)
546 mm_segment_t old_fs = get_fs();
549 name = getname(path);
551 return PTR_ERR(name);
553 ret = sys_statfs(name, &s);
556 if (put_statfs(buf, &s))
561 extern asmlinkage long sys_fstatfs(unsigned int fd, struct statfs * buf);
564 sys32_fstatfs(unsigned int fd, struct statfs32 *buf)
568 mm_segment_t old_fs = get_fs();
571 ret = sys_fstatfs(fd, &s);
573 if (put_statfs(buf, &s))
585 struct timeval32 it_interval;
586 struct timeval32 it_value;
590 get_tv32(struct timeval *o, struct timeval32 *i)
593 if (access_ok(VERIFY_READ, i, sizeof(*i))) {
594 err = __get_user(o->tv_sec, &i->tv_sec);
595 err |= __get_user(o->tv_usec, &i->tv_usec);
601 put_tv32(struct timeval32 *o, struct timeval *i)
604 if (access_ok(VERIFY_WRITE, o, sizeof(*o))) {
605 err = __put_user(i->tv_sec, &o->tv_sec);
606 err |= __put_user(i->tv_usec, &o->tv_usec);
612 get_it32(struct itimerval *o, struct itimerval32 *i)
615 if (access_ok(VERIFY_READ, i, sizeof(*i))) {
616 err = __get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec);
617 err |= __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec);
618 err |= __get_user(o->it_value.tv_sec, &i->it_value.tv_sec);
619 err |= __get_user(o->it_value.tv_usec, &i->it_value.tv_usec);
625 put_it32(struct itimerval32 *o, struct itimerval *i)
628 if (access_ok(VERIFY_WRITE, o, sizeof(*o))) {
629 err = __put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec);
630 err |= __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec);
631 err |= __put_user(i->it_value.tv_sec, &o->it_value.tv_sec);
632 err |= __put_user(i->it_value.tv_usec, &o->it_value.tv_usec);
637 extern int do_getitimer(int which, struct itimerval *value);
640 sys32_getitimer(int which, struct itimerval32 *it)
642 struct itimerval kit;
645 error = do_getitimer(which, &kit);
646 if (!error && put_it32(it, &kit))
652 extern int do_setitimer(int which, struct itimerval *, struct itimerval *);
655 sys32_setitimer(int which, struct itimerval32 *in, struct itimerval32 *out)
657 struct itimerval kin, kout;
661 if (get_it32(&kin, in))
664 memset(&kin, 0, sizeof(kin));
666 error = do_setitimer(which, &kin, out ? &kout : NULL);
669 if (put_it32(out, &kout))
677 sys32_alarm(unsigned int seconds)
679 struct itimerval it_new, it_old;
680 unsigned int oldalarm;
682 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
683 it_new.it_value.tv_sec = seconds;
684 it_new.it_value.tv_usec = 0;
685 do_setitimer(ITIMER_REAL, &it_new, &it_old);
686 oldalarm = it_old.it_value.tv_sec;
687 /* ehhh.. We can't return 0 if we have an alarm pending.. */
688 /* And we'd better return too much than too little anyway */
689 if (it_old.it_value.tv_usec)
694 /* Translations due to time_t size differences. Which affects all
695 sorts of things, like timeval and itimerval. */
702 extern asmlinkage long sys_utimes(char * filename, struct timeval * utimes);
703 extern asmlinkage long sys_gettimeofday (struct timeval *tv, struct timezone *tz);
705 extern struct timezone sys_tz;
706 extern int do_sys_settimeofday(struct timeval *tv, struct timezone *tz);
709 sys32_gettimeofday(struct timeval32 *tv, struct timezone *tz)
713 do_gettimeofday(&ktv);
714 if (put_tv32(tv, &ktv))
718 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
725 sys32_settimeofday(struct timeval32 *tv, struct timezone *tz)
731 if (get_tv32(&ktv, tv))
735 if (copy_from_user(&ktz, tz, sizeof(ktz)))
739 return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL);
742 struct linux32_dirent {
749 struct old_linux32_dirent {
756 struct getdents32_callback {
757 struct linux32_dirent * current_dir;
758 struct linux32_dirent * previous;
763 struct readdir32_callback {
764 struct old_linux32_dirent * dirent;
769 filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
772 struct linux32_dirent * dirent;
773 struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
774 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
776 buf->error = -EINVAL; /* only used if we fail.. */
777 if (reclen > buf->count)
779 dirent = buf->previous;
781 put_user(offset, &dirent->d_off);
782 dirent = buf->current_dir;
783 buf->previous = dirent;
784 put_user(ino, &dirent->d_ino);
785 put_user(reclen, &dirent->d_reclen);
786 copy_to_user(dirent->d_name, name, namlen);
787 put_user(0, dirent->d_name + namlen);
788 dirent = ((void *)dirent) + reclen;
789 buf->current_dir = dirent;
790 buf->count -= reclen;
795 sys32_getdents (unsigned int fd, void * dirent, unsigned int count)
798 struct linux32_dirent * lastdirent;
799 struct getdents32_callback buf;
807 buf.current_dir = (struct linux32_dirent *) dirent;
812 error = vfs_readdir(file, filldir32, &buf);
816 lastdirent = buf.previous;
818 put_user(file->f_pos, &lastdirent->d_off);
819 error = count - buf.count;
829 fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino, unsigned d_type)
831 struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
832 struct old_linux32_dirent * dirent;
837 dirent = buf->dirent;
838 put_user(ino, &dirent->d_ino);
839 put_user(offset, &dirent->d_offset);
840 put_user(namlen, &dirent->d_namlen);
841 copy_to_user(dirent->d_name, name, namlen);
842 put_user(0, dirent->d_name + namlen);
847 sys32_oldreaddir (unsigned int fd, void * dirent, unsigned int count)
851 struct readdir32_callback buf;
861 error = vfs_readdir(file, fillonedir32, &buf);
870 * We can actually return ERESTARTSYS instead of EINTR, but I'd
871 * like to be certain this leads to no problems. So I return
872 * EINTR just for safety.
874 * Update: ERESTARTSYS breaks at least the xview clock binary, so
875 * I'm trying ERESTARTNOHAND which restart only when you want to.
877 #define MAX_SELECT_SECONDS \
878 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
879 #define ROUND_UP_TIME(x,y) (((x)+(y)-1)/(y))
882 sys32_select(int n, fd_set *inp, fd_set *outp, fd_set *exp, struct timeval32 *tvp32)
889 timeout = MAX_SCHEDULE_TIMEOUT;
893 get_user(sec, &tvp32->tv_sec);
894 get_user(usec, &tvp32->tv_usec);
897 if (sec < 0 || usec < 0)
900 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
901 timeout = ROUND_UP_TIME(usec, 1000000/HZ);
902 timeout += sec * (unsigned long) HZ;
911 if (n > current->files->max_fdset)
912 n = current->files->max_fdset;
915 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
916 * since we used fdset we need to allocate memory in units of
920 bits = kmalloc(6 * size, GFP_KERNEL);
923 fds.in = (unsigned long *) bits;
924 fds.out = (unsigned long *) (bits + size);
925 fds.ex = (unsigned long *) (bits + 2*size);
926 fds.res_in = (unsigned long *) (bits + 3*size);
927 fds.res_out = (unsigned long *) (bits + 4*size);
928 fds.res_ex = (unsigned long *) (bits + 5*size);
930 if ((ret = get_fd_set(n, inp, fds.in)) ||
931 (ret = get_fd_set(n, outp, fds.out)) ||
932 (ret = get_fd_set(n, exp, fds.ex)))
934 zero_fd_set(n, fds.res_in);
935 zero_fd_set(n, fds.res_out);
936 zero_fd_set(n, fds.res_ex);
938 ret = do_select(n, &fds, &timeout);
940 if (tvp32 && !(current->personality & STICKY_TIMEOUTS)) {
941 time_t sec = 0, usec = 0;
945 usec *= (1000000/HZ);
947 put_user(sec, (int *)&tvp32->tv_sec);
948 put_user(usec, (int *)&tvp32->tv_usec);
954 ret = -ERESTARTNOHAND;
955 if (signal_pending(current))
960 set_fd_set(n, inp, fds.res_in);
961 set_fd_set(n, outp, fds.res_out);
962 set_fd_set(n, exp, fds.res_ex);
970 struct sel_arg_struct {
979 sys32_old_select(struct sel_arg_struct *arg)
981 struct sel_arg_struct a;
983 if (copy_from_user(&a, arg, sizeof(a)))
985 return sys32_select(a.n, (fd_set *)A(a.inp), (fd_set *)A(a.outp), (fd_set *)A(a.exp),
986 (struct timeval32 *)A(a.tvp));
989 extern asmlinkage long sys_nanosleep(struct timespec *rqtp, struct timespec *rmtp);
992 sys32_nanosleep(struct timespec32 *rqtp, struct timespec32 *rmtp)
994 struct timespec t, tout;
996 mm_segment_t old_fs = get_fs ();
999 if (verify_area(VERIFY_READ, rqtp, sizeof(struct timespec32)) ||
1000 __get_user (t.tv_sec, &rqtp->tv_sec) ||
1001 __get_user (t.tv_nsec, &rqtp->tv_nsec))
1005 ret = sys_nanosleep(rqtp ? &t : NULL, rmtp ? &tout : NULL);
1007 if (rmtp && ret == -EINTR) {
1008 if (verify_area(VERIFY_WRITE, rmtp, sizeof(struct timespec32)) ||
1009 __put_user (tout.tv_sec, &rmtp->tv_sec) ||
1010 __put_user (tout.tv_nsec, &rmtp->tv_nsec))
1016 asmlinkage ssize_t sys_readv(unsigned long,const struct iovec *,unsigned long);
1017 asmlinkage ssize_t sys_writev(unsigned long,const struct iovec *,unsigned long);
1019 static struct iovec *
1020 get_iovec32(struct iovec32 *iov32, struct iovec *iov_buf, u32 *count, int type, int *errp)
1024 struct iovec *ivp, *iov;
1025 unsigned long totlen;
1027 /* Get the "struct iovec" from user memory */
1033 if (*count > UIO_MAXIOV)
1034 return(struct iovec *)0;
1036 if(verify_area(VERIFY_READ, iov32, sizeof(struct iovec32)**count))
1037 return(struct iovec *)0;
1038 if (*count > UIO_FASTIOV) {
1040 iov = kmalloc(*count*sizeof(struct iovec), GFP_KERNEL);
1042 return((struct iovec *)0);
1048 for (i = 0; i < *count; i++) {
1049 *errp = __get_user(len, &iov32->iov_len) |
1050 __get_user(buf, &iov32->iov_base);
1053 *errp = verify_area(type, (void *)A(buf), len);
1065 if ((totlen += len) >= 0x7fffffff)
1067 ivp->iov_base = (void *)A(buf);
1068 ivp->iov_len = (__kernel_size_t)len;
1082 sys32_readv(int fd, struct iovec32 *vector, u32 count)
1084 struct iovec iovstack[UIO_FASTIOV];
1087 mm_segment_t old_fs = get_fs();
1089 if ((iov = get_iovec32(vector, iovstack, &count, VERIFY_WRITE, &ret)) == NULL)
1092 ret = sys_readv(fd, iov, count);
1094 if (iov != iovstack)
1100 sys32_writev(int fd, struct iovec32 *vector, u32 count)
1102 struct iovec iovstack[UIO_FASTIOV];
1105 mm_segment_t old_fs = get_fs();
1107 if ((iov = get_iovec32(vector, iovstack, &count, VERIFY_READ, &ret)) == NULL)
1110 ret = sys_writev(fd, iov, count);
1112 if (iov != iovstack)
1117 #define RLIM_INFINITY32 0xffffffff
1118 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
1125 extern asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit *rlim);
1128 sys32_getrlimit(unsigned int resource, struct rlimit32 *rlim)
1132 mm_segment_t old_fs;
1136 ret = sys_getrlimit(resource, &r);
1139 if (r.rlim_cur >= 0xffffffff)
1140 r.rlim_cur = RLIM_INFINITY32;
1141 if (r.rlim_max >= 0xffffffff)
1142 r.rlim_max = RLIM_INFINITY32;
1143 if (verify_area(VERIFY_WRITE, rlim, sizeof(struct rlimit32)) ||
1144 __put_user(RESOURCE32(r.rlim_cur), &rlim->rlim_cur) ||
1145 __put_user(RESOURCE32(r.rlim_max), &rlim->rlim_max))
1151 extern asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit *rlim);
1154 sys32_old_getrlimit(unsigned int resource, struct rlimit32 *rlim)
1158 mm_segment_t old_fs;
1162 ret = sys_getrlimit(resource, &r);
1165 if (r.rlim_cur >= 0x7fffffff)
1166 r.rlim_cur = RLIM_INFINITY32;
1167 if (r.rlim_max >= 0x7fffffff)
1168 r.rlim_max = RLIM_INFINITY32;
1169 if (verify_area(VERIFY_WRITE, rlim, sizeof(struct rlimit32)) ||
1170 __put_user(r.rlim_cur, &rlim->rlim_cur) ||
1171 __put_user(r.rlim_max, &rlim->rlim_max))
1177 extern asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit *rlim);
1180 sys32_setrlimit(unsigned int resource, struct rlimit32 *rlim)
1184 mm_segment_t old_fs = get_fs ();
1186 if (resource >= RLIM_NLIMITS) return -EINVAL;
1187 if (verify_area(VERIFY_READ, rlim, sizeof(struct rlimit32)) ||
1188 __get_user (r.rlim_cur, &rlim->rlim_cur) ||
1189 __get_user (r.rlim_max, &rlim->rlim_max))
1191 if (r.rlim_cur == RLIM_INFINITY32)
1192 r.rlim_cur = RLIM_INFINITY;
1193 if (r.rlim_max == RLIM_INFINITY32)
1194 r.rlim_max = RLIM_INFINITY;
1196 ret = sys_setrlimit(resource, &r);
1202 * sys_time() can be implemented in user-level using
1203 * sys_gettimeofday(). x86-64 did this but i386 Linux did not
1204 * so we have to implement this system call here.
1206 asmlinkage long sys32_time(int * tloc)
1210 /* SMP: This is fairly trivial. We grab CURRENT_TIME and
1211 stuff it to user space. No side effects */
1214 if (put_user(i,tloc))
1221 struct timeval32 ru_utime;
1222 struct timeval32 ru_stime;
1240 put_rusage (struct rusage32 *ru, struct rusage *r)
1242 if (verify_area(VERIFY_WRITE, ru, sizeof(struct rusage32)) ||
1243 __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec) ||
1244 __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec) ||
1245 __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec) ||
1246 __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec) ||
1247 __put_user (r->ru_maxrss, &ru->ru_maxrss) ||
1248 __put_user (r->ru_ixrss, &ru->ru_ixrss) ||
1249 __put_user (r->ru_idrss, &ru->ru_idrss) ||
1250 __put_user (r->ru_isrss, &ru->ru_isrss) ||
1251 __put_user (r->ru_minflt, &ru->ru_minflt) ||
1252 __put_user (r->ru_majflt, &ru->ru_majflt) ||
1253 __put_user (r->ru_nswap, &ru->ru_nswap) ||
1254 __put_user (r->ru_inblock, &ru->ru_inblock) ||
1255 __put_user (r->ru_oublock, &ru->ru_oublock) ||
1256 __put_user (r->ru_msgsnd, &ru->ru_msgsnd) ||
1257 __put_user (r->ru_msgrcv, &ru->ru_msgrcv) ||
1258 __put_user (r->ru_nsignals, &ru->ru_nsignals) ||
1259 __put_user (r->ru_nvcsw, &ru->ru_nvcsw) ||
1260 __put_user (r->ru_nivcsw, &ru->ru_nivcsw))
1265 extern asmlinkage long sys_wait4(pid_t pid,unsigned int * stat_addr,
1266 int options, struct rusage * ru);
1269 sys32_wait4(__kernel_pid_t32 pid, unsigned int *stat_addr, int options,
1270 struct rusage32 *ru)
1273 return sys_wait4(pid, stat_addr, options, NULL);
1277 unsigned int status;
1278 mm_segment_t old_fs = get_fs();
1281 ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
1283 if (put_rusage (ru, &r)) return -EFAULT;
1284 if (stat_addr && put_user (status, stat_addr))
1291 sys32_waitpid(__kernel_pid_t32 pid, unsigned int *stat_addr, int options)
1293 return sys32_wait4(pid, stat_addr, options, NULL);
1296 extern asmlinkage long
1297 sys_getrusage(int who, struct rusage *ru);
1300 sys32_getrusage(int who, struct rusage32 *ru)
1304 mm_segment_t old_fs = get_fs();
1307 ret = sys_getrusage(who, &r);
1309 if (put_rusage (ru, &r)) return -EFAULT;
1314 __kernel_clock_t32 tms_utime;
1315 __kernel_clock_t32 tms_stime;
1316 __kernel_clock_t32 tms_cutime;
1317 __kernel_clock_t32 tms_cstime;
1320 extern int sys_times(struct tms *);
1323 sys32_times(struct tms32 *tbuf)
1327 mm_segment_t old_fs = get_fs ();
1330 ret = sys_times(tbuf ? &t : NULL);
1333 if (verify_area(VERIFY_WRITE, tbuf, sizeof(struct tms32)) ||
1334 __put_user (t.tms_utime, &tbuf->tms_utime) ||
1335 __put_user (t.tms_stime, &tbuf->tms_stime) ||
1336 __put_user (t.tms_cutime, &tbuf->tms_cutime) ||
1337 __put_user (t.tms_cstime, &tbuf->tms_cstime))
1344 static inline int get_flock(struct flock *kfl, struct flock32 *ufl)
1348 err = get_user(kfl->l_type, &ufl->l_type);
1349 err |= __get_user(kfl->l_whence, &ufl->l_whence);
1350 err |= __get_user(kfl->l_start, &ufl->l_start);
1351 err |= __get_user(kfl->l_len, &ufl->l_len);
1352 err |= __get_user(kfl->l_pid, &ufl->l_pid);
1356 static inline int put_flock(struct flock *kfl, struct flock32 *ufl)
1360 err = __put_user(kfl->l_type, &ufl->l_type);
1361 err |= __put_user(kfl->l_whence, &ufl->l_whence);
1362 err |= __put_user(kfl->l_start, &ufl->l_start);
1363 err |= __put_user(kfl->l_len, &ufl->l_len);
1364 err |= __put_user(kfl->l_pid, &ufl->l_pid);
1368 extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
1369 asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg);
1372 asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
1380 mm_segment_t old_fs;
1383 if (get_flock(&f, (struct flock32 *)arg))
1385 old_fs = get_fs(); set_fs (KERNEL_DS);
1386 ret = sys_fcntl(fd, cmd, (unsigned long)&f);
1388 if (ret) return ret;
1389 if (put_flock(&f, (struct flock32 *)arg))
1396 return sys32_fcntl64(fd,cmd,arg);
1399 return sys_fcntl(fd, cmd, (unsigned long)arg);
1403 static inline int get_flock64(struct ia32_flock64 *fl32, struct flock *fl64)
1405 if (access_ok(fl32, sizeof(struct ia32_flock64), VERIFY_WRITE)) {
1406 int ret = __get_user(fl64->l_type, &fl32->l_type);
1407 ret |= __get_user(fl64->l_whence, &fl32->l_whence);
1408 ret |= __get_user(fl64->l_start, &fl32->l_start);
1409 ret |= __get_user(fl64->l_len, &fl32->l_len);
1410 ret |= __get_user(fl64->l_pid, &fl32->l_pid);
1416 static inline int put_flock64(struct ia32_flock64 *fl32, struct flock *fl64)
1418 if (access_ok(fl32, sizeof(struct ia32_flock64), VERIFY_WRITE)) {
1419 int ret = __put_user(fl64->l_type, &fl32->l_type);
1420 ret |= __put_user(fl64->l_whence, &fl32->l_whence);
1421 ret |= __put_user(fl64->l_start, &fl32->l_start);
1422 ret |= __put_user(fl64->l_len, &fl32->l_len);
1423 ret |= __put_user(fl64->l_pid, &fl32->l_pid);
1429 asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
1432 mm_segment_t oldfs = get_fs();
1435 unsigned long oldarg = arg;
1447 ret = get_flock64((struct ia32_flock64 *)arg, &fl64);
1448 arg = (unsigned long)&fl64;
1454 return sys32_fcntl(fd,cmd,arg);
1457 ret = sys_fcntl(fd, cmd, arg);
1459 if (oldcmd == F_GETLK64 && !ret)
1460 ret = put_flock64((struct ia32_flock64 *)oldarg, &fl64);
1464 asmlinkage long sys32_ni_syscall(int call)
1466 /* Disable for now because the emulation should be pretty complete
1467 and we miss some syscalls from 2.6. */
1469 printk(KERN_INFO "IA32 syscall %d from %s not implemented\n", call,
1475 /* 32-bit timeval and related flotsam. */
1477 extern asmlinkage long sys_utime(char * filename, struct utimbuf * times);
1480 __kernel_time_t32 actime, modtime;
1484 sys32_utime(char * filename, struct utimbuf32 *times)
1487 mm_segment_t old_fs;
1492 return sys_utime(filename, NULL);
1493 if (verify_area(VERIFY_READ, times, sizeof(struct utimbuf32)) ||
1494 __get_user (t.actime, ×->actime) ||
1495 __get_user (t.modtime, ×->modtime))
1497 filenam = getname (filename);
1498 ret = PTR_ERR(filenam);
1499 if (!IS_ERR(filenam)) {
1502 ret = sys_utime(filenam, &t);
1509 extern asmlinkage long sys_sysfs(int option, unsigned long arg1,
1510 unsigned long arg2);
1513 sys32_sysfs(int option, u32 arg1, u32 arg2)
1515 return sys_sysfs(option, arg1, arg2);
1518 extern asmlinkage long sys_mount(char * dev_name, char * dir_name, char * type,
1519 unsigned long new_flags, void *data);
1521 static char *badfs[] = {
1522 "smbfs", "ncpfs", NULL
1525 static int checktype(char *user_type)
1528 char **s,*kernel_type = getname(user_type);
1529 if (!kernel_type || IS_ERR(kernel_type))
1531 for (s = badfs; *s; ++s)
1532 if (!strcmp(kernel_type, *s)) {
1533 printk(KERN_ERR "mount32: unsupported fs `%s' -- use 64bit mount\n", *s);
1542 sys32_mount(char *dev_name, char *dir_name, char *type,
1543 unsigned long new_flags, u32 data)
1546 if(!capable(CAP_SYS_ADMIN))
1548 err = checktype(type);
1551 return sys_mount(dev_name, dir_name, type, new_flags, (void *)AA(data));
1563 unsigned short procs;
1568 char _f[20-2*sizeof(u32)-sizeof(int)];
1571 extern asmlinkage long sys_sysinfo(struct sysinfo *info);
1574 sys32_sysinfo(struct sysinfo32 *info)
1578 mm_segment_t old_fs = get_fs ();
1582 ret = sys_sysinfo(&s);
1585 /* Check to see if any memory value is too large for 32-bit and scale
1588 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
1589 while (s.mem_unit < PAGE_SIZE) {
1593 s.totalram >>= bitcount;
1594 s.freeram >>= bitcount;
1595 s.sharedram >>= bitcount;
1596 s.bufferram >>= bitcount;
1597 s.totalswap >>= bitcount;
1598 s.freeswap >>= bitcount;
1599 s.totalhigh >>= bitcount;
1600 s.freehigh >>= bitcount;
1603 if (verify_area(VERIFY_WRITE, info, sizeof(struct sysinfo32)) ||
1604 __put_user (s.uptime, &info->uptime) ||
1605 __put_user (s.loads[0], &info->loads[0]) ||
1606 __put_user (s.loads[1], &info->loads[1]) ||
1607 __put_user (s.loads[2], &info->loads[2]) ||
1608 __put_user (s.totalram, &info->totalram) ||
1609 __put_user (s.freeram, &info->freeram) ||
1610 __put_user (s.sharedram, &info->sharedram) ||
1611 __put_user (s.bufferram, &info->bufferram) ||
1612 __put_user (s.totalswap, &info->totalswap) ||
1613 __put_user (s.freeswap, &info->freeswap) ||
1614 __put_user (s.procs, &info->procs) ||
1615 __put_user (s.totalhigh, &info->totalhigh) ||
1616 __put_user (s.freehigh, &info->freehigh) ||
1617 __put_user (s.mem_unit, &info->mem_unit))
1622 extern asmlinkage long sys_sched_rr_get_interval(pid_t pid,
1623 struct timespec *interval);
1626 sys32_sched_rr_get_interval(__kernel_pid_t32 pid, struct timespec32 *interval)
1630 mm_segment_t old_fs = get_fs ();
1633 ret = sys_sched_rr_get_interval(pid, &t);
1635 if (verify_area(VERIFY_WRITE, interval, sizeof(struct timespec32)) ||
1636 __put_user (t.tv_sec, &interval->tv_sec) ||
1637 __put_user (t.tv_nsec, &interval->tv_nsec))
1642 extern asmlinkage long sys_sigprocmask(int how, old_sigset_t *set,
1643 old_sigset_t *oset);
1646 sys32_sigprocmask(int how, old_sigset32_t *set, old_sigset32_t *oset)
1650 mm_segment_t old_fs = get_fs();
1652 if (set && get_user (s, set)) return -EFAULT;
1654 ret = sys_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL);
1656 if (ret) return ret;
1657 if (oset && put_user (s, oset)) return -EFAULT;
1661 extern asmlinkage long sys_sigpending(old_sigset_t *set);
1664 sys32_sigpending(old_sigset32_t *set)
1668 mm_segment_t old_fs = get_fs();
1671 ret = sys_sigpending(&s);
1673 if (put_user (s, set)) return -EFAULT;
1677 extern asmlinkage long sys_rt_sigpending(sigset_t *set, size_t sigsetsize);
1680 sys32_rt_sigpending(sigset32_t *set, __kernel_size_t32 sigsetsize)
1685 mm_segment_t old_fs = get_fs();
1688 ret = sys_rt_sigpending(&s, sigsetsize);
1691 switch (_NSIG_WORDS) {
1692 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
1693 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
1694 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
1695 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
1697 if (copy_to_user (set, &s32, sizeof(sigset32_t)))
1704 siginfo64to32(siginfo_t32 *d, siginfo_t *s)
1706 memset (d, 0, sizeof(siginfo_t32));
1707 d->si_signo = s->si_signo;
1708 d->si_errno = s->si_errno;
1709 d->si_code = s->si_code;
1710 if (s->si_signo >= SIGRTMIN) {
1711 d->si_pid = s->si_pid;
1712 d->si_uid = s->si_uid;
1713 memcpy(&d->si_int, &s->si_int,
1714 sizeof(siginfo_t) - offsetof(siginfo_t,si_int));
1715 } else switch (s->si_signo) {
1716 /* XXX: What about POSIX1.b timers */
1718 d->si_pid = s->si_pid;
1719 d->si_status = s->si_status;
1720 d->si_utime = s->si_utime;
1721 d->si_stime = s->si_stime;
1727 d->si_addr = (long)(s->si_addr);
1728 // d->si_trapno = s->si_trapno;
1731 d->si_band = s->si_band;
1732 d->si_fd = s->si_fd;
1735 d->si_pid = s->si_pid;
1736 d->si_uid = s->si_uid;
1743 siginfo32to64(siginfo_t *d, siginfo_t32 *s)
1745 d->si_signo = s->si_signo;
1746 d->si_errno = s->si_errno;
1747 d->si_code = s->si_code;
1748 if (s->si_signo >= SIGRTMIN) {
1749 d->si_pid = s->si_pid;
1750 d->si_uid = s->si_uid;
1753 sizeof(siginfo_t) - offsetof(siginfo_t, si_int));
1754 } else switch (s->si_signo) {
1755 /* XXX: What about POSIX1.b timers */
1757 d->si_pid = s->si_pid;
1758 d->si_status = s->si_status;
1759 d->si_utime = s->si_utime;
1760 d->si_stime = s->si_stime;
1766 d->si_addr = (void *)A(s->si_addr);
1767 // d->si_trapno = s->si_trapno;
1770 d->si_band = s->si_band;
1771 d->si_fd = s->si_fd;
1774 d->si_pid = s->si_pid;
1775 d->si_uid = s->si_uid;
1781 extern asmlinkage long
1782 sys_rt_sigtimedwait(const sigset_t *uthese, siginfo_t *uinfo,
1783 const struct timespec *uts, size_t sigsetsize);
1786 sys32_rt_sigtimedwait(sigset32_t *uthese, siginfo_t32 *uinfo,
1787 struct timespec32 *uts, __kernel_size_t32 sigsetsize)
1793 mm_segment_t old_fs = get_fs();
1797 if (copy_from_user (&s32, uthese, sizeof(sigset32_t)))
1799 switch (_NSIG_WORDS) {
1800 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
1801 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
1802 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
1803 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
1806 if (verify_area(VERIFY_READ, uts, sizeof(struct timespec32)) ||
1807 __get_user (t.tv_sec, &uts->tv_sec) ||
1808 __get_user (t.tv_nsec, &uts->tv_nsec))
1812 ret = sys_rt_sigtimedwait(&s, &info, uts ? &t : NULL, sigsetsize);
1814 if (ret >= 0 && uinfo) {
1815 if (copy_to_user (uinfo, siginfo64to32(&info32, &info),
1816 sizeof(siginfo_t32)))
1822 extern asmlinkage long
1823 sys_rt_sigqueueinfo(int pid, int sig, siginfo_t *uinfo);
1826 sys32_rt_sigqueueinfo(int pid, int sig, siginfo_t32 *uinfo)
1831 mm_segment_t old_fs = get_fs();
1833 if (copy_from_user (&info32, uinfo, sizeof(siginfo_t32)))
1835 /* XXX: Is this correct? */
1836 siginfo32to64(&info, &info32);
1838 ret = sys_rt_sigqueueinfo(pid, sig, &info);
1843 extern void check_pending(int signum);
1845 asmlinkage long sys_utimes(char *, struct timeval *);
1848 sys32_utimes(char *filename, struct timeval32 *tvs)
1851 struct timeval ktvs[2];
1852 mm_segment_t old_fs;
1855 kfilename = getname(filename);
1856 ret = PTR_ERR(kfilename);
1857 if (!IS_ERR(kfilename)) {
1859 if (get_tv32(&ktvs[0], tvs) ||
1860 get_tv32(&ktvs[1], 1+tvs))
1866 ret = sys_utimes(kfilename, &ktvs[0]);
1874 /* These are here just in case some old ia32 binary calls it. */
1878 current->state = TASK_INTERRUPTIBLE;
1880 return -ERESTARTNOHAND;
1884 struct sysctl_ia32 {
1887 unsigned int oldval;
1888 unsigned int oldlenp;
1889 unsigned int newval;
1890 unsigned int newlen;
1891 unsigned int __unused[4];
1896 sys32_sysctl(struct sysctl_ia32 *args32)
1898 #ifndef CONFIG_SYSCTL
1901 struct sysctl_ia32 a32;
1902 mm_segment_t old_fs = get_fs ();
1903 void *oldvalp, *newvalp;
1907 extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
1908 void *newval, size_t newlen);
1911 if (copy_from_user(&a32, args32, sizeof (a32)))
1915 * We need to pre-validate these because we have to disable address checking
1916 * before calling do_sysctl() because of OLDLEN but we can't run the risk of the
1917 * user specifying bad addresses here. Well, since we're dealing with 32 bit
1918 * addresses, we KNOW that access_ok() will always succeed, so this is an
1919 * expensive NOP, but so what...
1921 namep = (int *) A(a32.name);
1922 oldvalp = (void *) A(a32.oldval);
1923 newvalp = (void *) A(a32.newval);
1925 if ((oldvalp && get_user(oldlen, (int *) A(a32.oldlenp)))
1926 || !access_ok(VERIFY_WRITE, namep, 0)
1927 || !access_ok(VERIFY_WRITE, oldvalp, 0)
1928 || !access_ok(VERIFY_WRITE, newvalp, 0))
1933 ret = do_sysctl(namep, a32.nlen, oldvalp, &oldlen, newvalp, (size_t) a32.newlen);
1937 if (oldvalp && put_user (oldlen, (int *) A(a32.oldlenp)))
1944 extern asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
1945 size_t count, loff_t pos);
1947 extern asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf,
1948 size_t count, loff_t pos);
1950 typedef __kernel_ssize_t32 ssize_t32;
1953 /* warning: next two assume little endian */
1955 sys32_pread(unsigned int fd, char *ubuf, __kernel_size_t32 count,
1956 u32 poslo, u32 poshi)
1958 return sys_pread(fd, ubuf, count,
1959 ((loff_t)AA(poshi) << 32) | AA(poslo));
1963 sys32_pwrite(unsigned int fd, char *ubuf, __kernel_size_t32 count,
1964 u32 poslo, u32 poshi)
1966 return sys_pwrite(fd, ubuf, count,
1967 ((loff_t)AA(poshi) << 32) | AA(poslo));
1971 extern asmlinkage long sys_personality(unsigned long);
1974 sys32_personality(unsigned long personality)
1977 if (personality(current->personality) == PER_LINUX32 &&
1978 personality == PER_LINUX)
1979 personality = PER_LINUX32;
1980 ret = sys_personality(personality);
1981 if (ret == PER_LINUX32)
1986 extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t *offset,
1990 sys32_sendfile(int out_fd, int in_fd, __kernel_off_t32 *offset, s32 count)
1992 mm_segment_t old_fs = get_fs();
1996 if (offset && get_user(of, offset))
2000 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
2003 if (!ret && offset && put_user(of, offset))
2009 extern long sys_modify_ldt(int,void*,unsigned long);
2011 asmlinkage long sys32_modify_ldt(int func, void *ptr, unsigned long bytecount)
2014 if (func == 0x1 || func == 0x11) {
2015 struct modify_ldt_ldt_s info;
2016 mm_segment_t old_fs = get_fs();
2017 if (bytecount != sizeof(struct modify_ldt_ldt_s))
2019 if (copy_from_user(&info, ptr, sizeof(struct modify_ldt_ldt_s)))
2021 /* lm bit was undefined in the 32bit ABI and programs
2022 give it random values. Force it to zero here. */
2025 ret = sys_modify_ldt(func, &info, bytecount);
2028 ret = sys_modify_ldt(func, ptr, bytecount);
2033 /* Handle adjtimex compatability. */
2037 s32 offset, freq, maxerror, esterror;
2038 s32 status, constant, precision, tolerance;
2039 struct timeval32 time;
2041 s32 ppsfreq, jitter, shift, stabil;
2042 s32 jitcnt, calcnt, errcnt, stbcnt;
2043 s32 :32; s32 :32; s32 :32; s32 :32;
2044 s32 :32; s32 :32; s32 :32; s32 :32;
2045 s32 :32; s32 :32; s32 :32; s32 :32;
2048 extern int do_adjtimex(struct timex *);
2051 sys32_adjtimex(struct timex32 *utp)
2056 memset(&txc, 0, sizeof(struct timex));
2058 if(verify_area(VERIFY_READ, utp, sizeof(struct timex32)) ||
2059 __get_user(txc.modes, &utp->modes) ||
2060 __get_user(txc.offset, &utp->offset) ||
2061 __get_user(txc.freq, &utp->freq) ||
2062 __get_user(txc.maxerror, &utp->maxerror) ||
2063 __get_user(txc.esterror, &utp->esterror) ||
2064 __get_user(txc.status, &utp->status) ||
2065 __get_user(txc.constant, &utp->constant) ||
2066 __get_user(txc.precision, &utp->precision) ||
2067 __get_user(txc.tolerance, &utp->tolerance) ||
2068 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
2069 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
2070 __get_user(txc.tick, &utp->tick) ||
2071 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
2072 __get_user(txc.jitter, &utp->jitter) ||
2073 __get_user(txc.shift, &utp->shift) ||
2074 __get_user(txc.stabil, &utp->stabil) ||
2075 __get_user(txc.jitcnt, &utp->jitcnt) ||
2076 __get_user(txc.calcnt, &utp->calcnt) ||
2077 __get_user(txc.errcnt, &utp->errcnt) ||
2078 __get_user(txc.stbcnt, &utp->stbcnt))
2081 ret = do_adjtimex(&txc);
2083 if(verify_area(VERIFY_WRITE, utp, sizeof(struct timex32)) ||
2084 __put_user(txc.modes, &utp->modes) ||
2085 __put_user(txc.offset, &utp->offset) ||
2086 __put_user(txc.freq, &utp->freq) ||
2087 __put_user(txc.maxerror, &utp->maxerror) ||
2088 __put_user(txc.esterror, &utp->esterror) ||
2089 __put_user(txc.status, &utp->status) ||
2090 __put_user(txc.constant, &utp->constant) ||
2091 __put_user(txc.precision, &utp->precision) ||
2092 __put_user(txc.tolerance, &utp->tolerance) ||
2093 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
2094 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
2095 __put_user(txc.tick, &utp->tick) ||
2096 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
2097 __put_user(txc.jitter, &utp->jitter) ||
2098 __put_user(txc.shift, &utp->shift) ||
2099 __put_user(txc.stabil, &utp->stabil) ||
2100 __put_user(txc.jitcnt, &utp->jitcnt) ||
2101 __put_user(txc.calcnt, &utp->calcnt) ||
2102 __put_user(txc.errcnt, &utp->errcnt) ||
2103 __put_user(txc.stbcnt, &utp->stbcnt))
2109 asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len,
2110 unsigned long prot, unsigned long flags,
2111 unsigned long fd, unsigned long pgoff)
2113 struct mm_struct *mm = current->mm;
2114 unsigned long error;
2115 struct file * file = NULL;
2117 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
2118 if (!(flags & MAP_ANONYMOUS)) {
2124 if (prot & PROT_READ)
2127 down_write(&mm->mmap_sem);
2128 error = do_mmap_pgoff(file, addr, len, prot, flags|MAP_32BIT, pgoff);
2129 up_write(&mm->mmap_sem);
2136 asmlinkage long sys32_olduname(struct oldold_utsname * name)
2142 if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
2145 down_read(&uts_sem);
2147 error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
2148 __put_user(0,name->sysname+__OLD_UTS_LEN);
2149 __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
2150 __put_user(0,name->nodename+__OLD_UTS_LEN);
2151 __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
2152 __put_user(0,name->release+__OLD_UTS_LEN);
2153 __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
2154 __put_user(0,name->version+__OLD_UTS_LEN);
2156 char *arch = (personality(current->personality) == PER_LINUX32)
2157 ? "i686" : "x86_64";
2159 __copy_to_user(&name->machine,arch,strlen(arch)+1);
2164 error = error ? -EFAULT : 0;
2169 asmlinkage long sys32_uname(struct old_utsname * name)
2172 down_read(&uts_sem);
2173 err=copy_to_user(name, &system_utsname, sizeof (*name));
2175 if (personality(current->personality) == PER_LINUX32)
2176 err = copy_to_user(name->machine, "i686", 5);
2177 return err?-EFAULT:0;
2180 extern int sys_ustat(dev_t, struct ustat *);
2182 asmlinkage long sys32_ustat(dev_t dev, struct ustat32 *u32p)
2190 ret = sys_ustat(dev,&u);
2193 if (!access_ok(VERIFY_WRITE,u32p,sizeof(struct ustat32)) ||
2194 __put_user((__u32) u.f_tfree, &u32p->f_tfree) ||
2195 __put_user((__u32) u.f_tinode, &u32p->f_tfree) ||
2196 __copy_to_user(&u32p->f_fname, u.f_fname, sizeof(u.f_fname)) ||
2197 __copy_to_user(&u32p->f_fpack, u.f_fpack, sizeof(u.f_fpack)))
2203 static int nargs(u32 src, char **dst, int max)
2210 int ret = get_user(val, (__u32 *)(u64)src);
2216 dst[cnt] = (char *)(u64)val;
2225 asmlinkage long sys32_execve(char *name, u32 argv, u32 envp, struct pt_regs regs)
2227 mm_segment_t oldseg;
2233 /* Can actually allocate 2*MAX_ARG_PAGES */
2235 na = nargs(argv, NULL, (MAX_ARG_PAGES * PAGE_SIZE)/sizeof(char*) - 1);
2240 ne = nargs(envp, NULL, (MAX_ARG_PAGES * PAGE_SIZE)/sizeof(char*) - 1);
2246 sz = (na+ne)*sizeof(void *);
2250 buf = kmalloc(sz, GFP_KERNEL);
2256 ret = nargs(argv, buf, na);
2262 ret = nargs(envp, buf + na, ne);
2267 name = getname(name);
2268 ret = PTR_ERR(name);
2274 ret = do_execve(name, argv ? buf : NULL, envp ? buf+na : NULL, ®s);
2278 current->ptrace &= ~PT_DTRACE;
2292 asmlinkage long sys32_fork(struct pt_regs regs)
2294 return do_fork(SIGCHLD, regs.rsp, ®s, 0);
2297 asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp, struct pt_regs regs)
2301 return do_fork(clone_flags, newsp, ®s, 0);
2305 * This is trivial, and on the face of it looks like it
2306 * could equally well be done in user mode.
2308 * Not so, for quite unobvious reasons - register pressure.
2309 * In user mode vfork() cannot have a stack frame, and if
2310 * done by calling the "clone()" system call directly, you
2311 * do not have enough call-clobbered registers to hold all
2312 * the information you need.
2314 asmlinkage long sys32_vfork(struct pt_regs regs)
2316 return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.rsp, ®s, 0);
2320 * Some system calls that need sign extended arguments. This could be done by a generic wrapper.
2323 extern off_t sys_lseek (unsigned int fd, off_t offset, unsigned int origin);
2325 asmlinkage long sys32_lseek (unsigned int fd, int offset, unsigned int whence)
2327 return sys_lseek(fd, offset, whence);
2330 extern int sys_kill(pid_t pid, int sig);
2332 asmlinkage long sys32_kill(int pid, int sig)
2334 return sys_kill(pid, sig);
2338 #if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
2339 /* Stuff for NFS server syscalls... */
2340 struct nfsctl_svc32 {
2345 struct nfsctl_client32 {
2346 s8 cl32_ident[NFSCLNT_IDMAX+1];
2348 struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
2351 u8 cl32_fhkey[NFSCLNT_KEYMAX];
2354 struct nfsctl_export32 {
2355 s8 ex32_client[NFSCLNT_IDMAX+1];
2356 s8 ex32_path[NFS_MAXPATHLEN+1];
2357 __kernel_dev_t32 ex32_dev;
2358 __kernel_ino_t32 ex32_ino;
2360 __kernel_uid_t32 ex32_anon_uid;
2361 __kernel_gid_t32 ex32_anon_gid;
2364 struct nfsctl_uidmap32 {
2365 u32 ug32_ident; /* char * */
2366 __kernel_uid_t32 ug32_uidbase;
2368 u32 ug32_udimap; /* uid_t * */
2369 __kernel_uid_t32 ug32_gidbase;
2371 u32 ug32_gdimap; /* gid_t * */
2374 struct nfsctl_fhparm32 {
2375 struct sockaddr gf32_addr;
2376 __kernel_dev_t32 gf32_dev;
2377 __kernel_ino_t32 gf32_ino;
2381 struct nfsctl_fdparm32 {
2382 struct sockaddr gd32_addr;
2383 s8 gd32_path[NFS_MAXPATHLEN+1];
2387 struct nfsctl_fsparm32 {
2388 struct sockaddr gd32_addr;
2389 s8 gd32_path[NFS_MAXPATHLEN+1];
2393 struct nfsctl_arg32 {
2394 s32 ca32_version; /* safeguard */
2396 struct nfsctl_svc32 u32_svc;
2397 struct nfsctl_client32 u32_client;
2398 struct nfsctl_export32 u32_export;
2399 struct nfsctl_uidmap32 u32_umap;
2400 struct nfsctl_fhparm32 u32_getfh;
2401 struct nfsctl_fdparm32 u32_getfd;
2402 struct nfsctl_fsparm32 u32_getfs;
2404 #define ca32_svc u.u32_svc
2405 #define ca32_client u.u32_client
2406 #define ca32_export u.u32_export
2407 #define ca32_umap u.u32_umap
2408 #define ca32_getfh u.u32_getfh
2409 #define ca32_getfd u.u32_getfd
2410 #define ca32_getfs u.u32_getfs
2411 #define ca32_authd u.u32_authd
2414 union nfsctl_res32 {
2415 __u8 cr32_getfh[NFS_FHSIZE];
2416 struct knfsd_fh cr32_getfs;
2419 static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2423 err = get_user(karg->ca_version, &arg32->ca32_version);
2424 err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
2425 err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
2429 static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2433 err = get_user(karg->ca_version, &arg32->ca32_version);
2434 err |= copy_from_user(&karg->ca_client.cl_ident[0],
2435 &arg32->ca32_client.cl32_ident[0],
2437 err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
2438 err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
2439 &arg32->ca32_client.cl32_addrlist[0],
2440 (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
2441 err |= __get_user(karg->ca_client.cl_fhkeytype,
2442 &arg32->ca32_client.cl32_fhkeytype);
2443 err |= __get_user(karg->ca_client.cl_fhkeylen,
2444 &arg32->ca32_client.cl32_fhkeylen);
2445 err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
2446 &arg32->ca32_client.cl32_fhkey[0],
2451 static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2455 err = get_user(karg->ca_version, &arg32->ca32_version);
2456 err |= copy_from_user(&karg->ca_export.ex_client[0],
2457 &arg32->ca32_export.ex32_client[0],
2459 err |= copy_from_user(&karg->ca_export.ex_path[0],
2460 &arg32->ca32_export.ex32_path[0],
2462 err |= __get_user(karg->ca_export.ex_dev,
2463 &arg32->ca32_export.ex32_dev);
2464 err |= __get_user(karg->ca_export.ex_ino,
2465 &arg32->ca32_export.ex32_ino);
2466 err |= __get_user(karg->ca_export.ex_flags,
2467 &arg32->ca32_export.ex32_flags);
2468 err |= __get_user(karg->ca_export.ex_anon_uid,
2469 &arg32->ca32_export.ex32_anon_uid);
2470 err |= __get_user(karg->ca_export.ex_anon_gid,
2471 &arg32->ca32_export.ex32_anon_gid);
2472 karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
2473 karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
2477 static int nfs_getfh32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2481 err = get_user(karg->ca_version, &arg32->ca32_version);
2482 err |= copy_from_user(&karg->ca_getfh.gf_addr,
2483 &arg32->ca32_getfh.gf32_addr,
2484 (sizeof(struct sockaddr)));
2485 err |= __get_user(karg->ca_getfh.gf_dev,
2486 &arg32->ca32_getfh.gf32_dev);
2487 err |= __get_user(karg->ca_getfh.gf_ino,
2488 &arg32->ca32_getfh.gf32_ino);
2489 err |= __get_user(karg->ca_getfh.gf_version,
2490 &arg32->ca32_getfh.gf32_version);
2494 static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2498 err = get_user(karg->ca_version, &arg32->ca32_version);
2499 err |= copy_from_user(&karg->ca_getfd.gd_addr,
2500 &arg32->ca32_getfd.gd32_addr,
2501 (sizeof(struct sockaddr)));
2502 err |= copy_from_user(&karg->ca_getfd.gd_path,
2503 &arg32->ca32_getfd.gd32_path,
2504 (NFS_MAXPATHLEN+1));
2505 err |= get_user(karg->ca_getfd.gd_version,
2506 &arg32->ca32_getfd.gd32_version);
2510 static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2514 err = get_user(karg->ca_version, &arg32->ca32_version);
2515 err |= copy_from_user(&karg->ca_getfs.gd_addr,
2516 &arg32->ca32_getfs.gd32_addr,
2517 (sizeof(struct sockaddr)));
2518 err |= copy_from_user(&karg->ca_getfs.gd_path,
2519 &arg32->ca32_getfs.gd32_path,
2520 (NFS_MAXPATHLEN+1));
2521 err |= get_user(karg->ca_getfs.gd_maxlen,
2522 &arg32->ca32_getfs.gd32_maxlen);
2526 /* This really doesn't need translations, we are only passing
2527 * back a union which contains opaque nfs file handle data.
2529 static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
2531 return copy_to_user(res32, kres, sizeof(*res32));
2534 long asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
2536 struct nfsctl_arg *karg = NULL;
2537 union nfsctl_res *kres = NULL;
2541 karg = kmalloc(sizeof(*karg), GFP_USER);
2545 kres = kmalloc(sizeof(*kres), GFP_USER);
2553 err = nfs_svc32_trans(karg, arg32);
2555 case NFSCTL_ADDCLIENT:
2556 err = nfs_clnt32_trans(karg, arg32);
2558 case NFSCTL_DELCLIENT:
2559 err = nfs_clnt32_trans(karg, arg32);
2562 case NFSCTL_UNEXPORT:
2563 err = nfs_exp32_trans(karg, arg32);
2566 err = nfs_getfh32_trans(karg, arg32);
2569 err = nfs_getfd32_trans(karg, arg32);
2572 err = nfs_getfs32_trans(karg, arg32);
2582 err = sys_nfsservctl(cmd, karg, kres);
2588 if((cmd == NFSCTL_GETFH) ||
2589 (cmd == NFSCTL_GETFD) ||
2590 (cmd == NFSCTL_GETFS))
2591 err = nfs_getfh32_res_trans(kres, res32);
2595 if(cmd == NFSCTL_UGIDUPDATE) {
2596 if(karg->ca_umap.ug_ident)
2597 kfree(karg->ca_umap.ug_ident);
2598 if(karg->ca_umap.ug_udimap)
2599 kfree(karg->ca_umap.ug_udimap);
2600 if(karg->ca_umap.ug_gdimap)
2601 kfree(karg->ca_umap.ug_gdimap);
2610 extern asmlinkage long sys_ni_syscall(void);
2611 long asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2)
2613 return sys_ni_syscall();
2617 #ifdef CONFIG_MODULES
2619 extern asmlinkage unsigned long sys_create_module(const char *name_user, size_t size);
2621 asmlinkage unsigned long sys32_create_module(const char *name_user, __kernel_size_t32 size)
2623 return sys_create_module(name_user, (size_t)size);
2626 extern asmlinkage int sys_init_module(const char *name_user, struct module *mod_user);
2628 /* Hey, when you're trying to init module, take time and prepare us a nice 64bit
2629 * module structure, even if from 32bit modutils... Why to pollute kernel... :))
2631 asmlinkage int sys32_init_module(const char *name_user, struct module *mod_user)
2633 return sys_init_module(name_user, mod_user);
2636 extern asmlinkage int sys_delete_module(const char *name_user);
2638 asmlinkage int sys32_delete_module(const char *name_user)
2640 return sys_delete_module(name_user);
2643 struct module_info32 {
2650 /* Query various bits about modules. */
2653 get_mod_name(const char *user_name, char **buf)
2658 if ((unsigned long)user_name >= TASK_SIZE
2659 && !segment_eq(get_fs (), KERNEL_DS))
2662 page = __get_free_page(GFP_KERNEL);
2666 retval = strncpy_from_user((char *)page, user_name, PAGE_SIZE);
2668 if (retval < PAGE_SIZE) {
2669 *buf = (char *)page;
2672 retval = -ENAMETOOLONG;
2681 put_mod_name(char *buf)
2683 free_page((unsigned long)buf);
2686 static __inline__ struct module *find_module(const char *name)
2690 for (mod = module_list; mod ; mod = mod->next) {
2691 if (mod->flags & MOD_DELETED)
2693 if (!strcmp(mod->name, name))
2701 qm_modules(char *buf, size_t bufsize, __kernel_size_t32 *ret)
2704 size_t nmod, space, len;
2708 for (mod = module_list; mod->next != NULL; mod = mod->next, ++nmod) {
2709 len = strlen(mod->name)+1;
2711 goto calc_space_needed;
2712 if (copy_to_user(buf, mod->name, len))
2719 if (put_user(nmod, ret))
2726 while ((mod = mod->next)->next != NULL)
2727 space += strlen(mod->name)+1;
2729 if (put_user(space, ret))
2736 qm_deps(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
2738 size_t i, space, len;
2740 if (mod->next == NULL)
2742 if (!MOD_CAN_QUERY(mod))
2743 return put_user(0, ret);
2746 for (i = 0; i < mod->ndeps; ++i) {
2747 const char *dep_name = mod->deps[i].dep->name;
2749 len = strlen(dep_name)+1;
2751 goto calc_space_needed;
2752 if (copy_to_user(buf, dep_name, len))
2759 return put_user(i, ret);
2763 while (++i < mod->ndeps)
2764 space += strlen(mod->deps[i].dep->name)+1;
2766 if (put_user(space, ret))
2773 qm_refs(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
2775 size_t nrefs, space, len;
2776 struct module_ref *ref;
2778 if (mod->next == NULL)
2780 if (!MOD_CAN_QUERY(mod))
2781 if (put_user(0, ret))
2787 for (nrefs = 0, ref = mod->refs; ref ; ++nrefs, ref = ref->next_ref) {
2788 const char *ref_name = ref->ref->name;
2790 len = strlen(ref_name)+1;
2792 goto calc_space_needed;
2793 if (copy_to_user(buf, ref_name, len))
2800 if (put_user(nrefs, ret))
2807 while ((ref = ref->next_ref) != NULL)
2808 space += strlen(ref->ref->name)+1;
2810 if (put_user(space, ret))
2817 qm_symbols(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
2819 size_t i, space, len;
2820 struct module_symbol *s;
2824 if (!MOD_CAN_QUERY(mod))
2825 if (put_user(0, ret))
2830 space = mod->nsyms * 2*sizeof(u32);
2835 if (space > bufsize)
2836 goto calc_space_needed;
2838 if (!access_ok(VERIFY_WRITE, buf, space))
2842 vals = (unsigned *)buf;
2843 strings = buf+space;
2845 for (; i < mod->nsyms ; ++i, ++s, vals += 2) {
2846 len = strlen(s->name)+1;
2848 goto calc_space_needed;
2850 if (copy_to_user(strings, s->name, len)
2851 || __put_user(s->value, vals+0)
2852 || __put_user(space, vals+1))
2860 if (put_user(i, ret))
2866 for (; i < mod->nsyms; ++i, ++s)
2867 space += strlen(s->name)+1;
2869 if (put_user(space, ret))
2876 qm_info(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
2880 if (mod->next == NULL)
2883 if (sizeof(struct module_info32) <= bufsize) {
2884 struct module_info32 info;
2885 info.addr = (unsigned long)mod;
2886 info.size = mod->size;
2887 info.flags = mod->flags;
2889 ((mod_member_present(mod, can_unload)
2891 ? -1 : atomic_read(&mod->uc.usecount));
2893 if (copy_to_user(buf, &info, sizeof(struct module_info32)))
2898 if (put_user(sizeof(struct module_info32), ret))
2904 asmlinkage int sys32_query_module(char *name_user, int which, char *buf, __kernel_size_t32 bufsize, u32 ret)
2910 if (name_user == 0) {
2911 /* This finds "kernel_module" which is not exported. */
2912 for(mod = module_list; mod->next != NULL; mod = mod->next)
2918 if ((namelen = get_mod_name(name_user, &name)) < 0) {
2924 /* This finds "kernel_module" which is not exported. */
2925 for(mod = module_list; mod->next != NULL; mod = mod->next)
2927 } else if ((mod = find_module(name)) == NULL) {
2940 err = qm_modules(buf, bufsize, (__kernel_size_t32 *)AA(ret));
2943 err = qm_deps(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
2946 err = qm_refs(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
2949 err = qm_symbols(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
2952 err = qm_info(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
2963 struct kernel_sym32 {
2968 extern asmlinkage int sys_get_kernel_syms(struct kernel_sym *table);
2970 asmlinkage int sys32_get_kernel_syms(struct kernel_sym32 *table)
2973 struct kernel_sym *tbl;
2974 mm_segment_t old_fs;
2976 len = sys_get_kernel_syms(NULL);
2977 if (!table) return len;
2978 tbl = kmalloc (len * sizeof (struct kernel_sym), GFP_KERNEL);
2979 if (!tbl) return -ENOMEM;
2982 sys_get_kernel_syms(tbl);
2984 for (i = 0; i < len; i++, table++) {
2985 if (put_user (tbl[i].value, &table->value) ||
2986 copy_to_user (table->name, tbl[i].name, 60))
2993 #else /* CONFIG_MODULES */
2995 asmlinkage unsigned long
2996 sys32_create_module(const char *name_user, size_t size)
3002 sys32_init_module(const char *name_user, struct module *mod_user)
3008 sys32_delete_module(const char *name_user)
3014 sys32_query_module(const char *name_user, int which, char *buf, size_t bufsize,
3017 /* Let the program know about the new interface. Not that
3018 it'll do them much good. */
3026 sys32_get_kernel_syms(struct kernel_sym *table)
3031 #endif /* CONFIG_MODULES */
3033 long sys32_vm86_warning(void)
3035 static long warn_time = -(60*HZ);
3036 if (time_before(warn_time + 60*HZ,jiffies)) {
3037 printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n",
3039 warn_time = jiffies;
3044 /* This only triggers an i686 uname */
3045 struct exec_domain ia32_exec_domain = {
3046 name: "linux/uname-i686",
3047 pers_low: PER_LINUX32,
3048 pers_high: PER_LINUX32,
3051 static int __init ia32_init (void)
3053 printk("IA32 emulation $Id: sys_ia32.c,v 1.70 2004/03/03 23:36:43 ak Exp $\n");
3054 ia32_exec_domain.signal_map = default_exec_domain.signal_map;
3055 ia32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
3056 register_exec_domain(&ia32_exec_domain);
3060 __initcall(ia32_init);