2 * Conversion between 32-bit and 64-bit native system calls.
4 * Copyright (C) 2000 Silicon Graphics, Inc.
5 * Written by Ulf Carlsson (ulfc@engr.sgi.com)
6 * sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com)
8 #include <linux/config.h>
9 #include <linux/compiler.h>
11 #include <linux/errno.h>
12 #include <linux/file.h>
13 #include <linux/smp_lock.h>
14 #include <linux/highuid.h>
15 #include <linux/dirent.h>
16 #include <linux/resource.h>
17 #include <linux/highmem.h>
18 #include <linux/time.h>
19 #include <linux/times.h>
20 #include <linux/poll.h>
21 #include <linux/slab.h>
22 #include <linux/skbuff.h>
23 #include <linux/filter.h>
24 #include <linux/shm.h>
25 #include <linux/sem.h>
26 #include <linux/msg.h>
27 #include <linux/icmpv6.h>
28 #include <linux/syscalls.h>
29 #include <linux/sysctl.h>
30 #include <linux/utime.h>
31 #include <linux/utsname.h>
32 #include <linux/personality.h>
33 #include <linux/timex.h>
34 #include <linux/dnotify.h>
35 #include <linux/module.h>
36 #include <linux/binfmts.h>
37 #include <linux/security.h>
38 #include <linux/compat.h>
39 #include <linux/vfs.h>
46 #include <asm/uaccess.h>
47 #include <asm/mmu_context.h>
50 /* Use this to get at 32-bit user passed pointers. */
51 /* A() macro should be used for places where you e.g.
52 have some internal variable u32 and just want to get
53 rid of a compiler warning. AA() has to be used in
54 places where you want to convert a function argument
55 to 32bit pointer or when you e.g. access pt_regs
56 structure and want to consider 32bit registers only.
58 #define A(__x) ((unsigned long)(__x))
59 #define AA(__x) ((unsigned long)((int)__x))
62 #define merge_64(r1,r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL))
65 #define merge_64(r1,r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
69 * Revalidate the inode. This is required for proper NFS attribute caching.
72 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
74 struct compat_stat tmp;
76 if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))
79 memset(&tmp, 0, sizeof(tmp));
80 tmp.st_dev = new_encode_dev(stat->dev);
81 tmp.st_ino = stat->ino;
82 tmp.st_mode = stat->mode;
83 tmp.st_nlink = stat->nlink;
84 SET_UID(tmp.st_uid, stat->uid);
85 SET_GID(tmp.st_gid, stat->gid);
86 tmp.st_rdev = new_encode_dev(stat->rdev);
87 tmp.st_size = stat->size;
88 tmp.st_atime = stat->atime.tv_sec;
89 tmp.st_mtime = stat->mtime.tv_sec;
90 tmp.st_ctime = stat->ctime.tv_sec;
92 tmp.st_atime_nsec = stat->atime.tv_nsec;
93 tmp.st_mtime_nsec = stat->mtime.tv_nsec;
94 tmp.st_ctime_nsec = stat->ctime.tv_nsec;
96 tmp.st_blocks = stat->blocks;
97 tmp.st_blksize = stat->blksize;
98 return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
101 asmlinkage unsigned long
102 sys32_mmap2(unsigned long addr, size_t len, unsigned long prot,
103 unsigned long flags, unsigned long fd, unsigned long pgoff)
105 struct file * file = NULL;
109 if (!(flags & MAP_ANONYMOUS)) {
115 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
117 down_write(¤t->mm->mmap_sem);
118 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
119 up_write(¤t->mm->mmap_sem);
128 asmlinkage int sys_truncate64(const char *path, unsigned int high,
133 return sys_truncate(path, ((long) high << 32) | low);
136 asmlinkage int sys_ftruncate64(unsigned int fd, unsigned int high,
141 return sys_ftruncate(fd, ((long) high << 32) | low);
145 * count32() counts the number of arguments/envelopes
147 static int count32(u32 * argv, int max)
155 error = get_user(p,argv);
170 * 'copy_strings32()' copies argument/envelope strings from user
171 * memory to free pages in kernel mem. These are in a format ready
172 * to be put directly into the top of new user memory.
174 int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
176 struct page *kmapped_page = NULL;
185 if (get_user(str, argv+argc) || !str ||
186 !(len = strnlen_user((char *)A(str), bprm->p))) {
197 /* XXX: add architecture specific overflow check here. */
202 int offset, bytes_to_copy;
205 offset = pos % PAGE_SIZE;
207 page = bprm->page[i];
210 page = alloc_page(GFP_HIGHUSER);
211 bprm->page[i] = page;
219 if (page != kmapped_page) {
221 kunmap(kmapped_page);
223 kaddr = kmap(kmapped_page);
226 memset(kaddr, 0, offset);
227 bytes_to_copy = PAGE_SIZE - offset;
228 if (bytes_to_copy > len) {
231 memset(kaddr+offset+len, 0,
232 PAGE_SIZE-offset-len);
234 err = copy_from_user(kaddr + offset, (char *)A(str),
241 pos += bytes_to_copy;
242 str += bytes_to_copy;
243 len -= bytes_to_copy;
249 kunmap(kmapped_page);
255 #define free_arg_pages(bprm) do { } while (0)
259 static inline void free_arg_pages(struct linux_binprm *bprm)
263 for (i = 0; i < MAX_ARG_PAGES; i++) {
265 __free_page(bprm->page[i]);
266 bprm->page[i] = NULL;
270 #endif /* CONFIG_MMU */
273 * sys32_execve() executes a new program.
276 do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
278 struct linux_binprm bprm;
282 sched_balance_exec();
284 file = open_exec(filename);
286 retval = PTR_ERR(file);
290 bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
291 memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
294 bprm.filename = filename;
295 bprm.interp = filename;
299 bprm.security = NULL;
300 bprm.mm = mm_alloc();
305 retval = init_new_context(current, bprm.mm);
309 bprm.argc = count32(argv, bprm.p / sizeof(u32));
310 if ((retval = bprm.argc) < 0)
313 bprm.envc = count32(envp, bprm.p / sizeof(u32));
314 if ((retval = bprm.envc) < 0)
317 retval = security_bprm_alloc(&bprm);
321 retval = prepare_binprm(&bprm);
325 retval = copy_strings_kernel(1, &bprm.filename, &bprm);
330 retval = copy_strings32(bprm.envc, envp, &bprm);
334 retval = copy_strings32(bprm.argc, argv, &bprm);
338 retval = search_binary_handler(&bprm, regs);
340 free_arg_pages(&bprm);
343 security_bprm_free(&bprm);
348 /* Something went wrong, return the inode and free the argument pages*/
349 free_arg_pages(&bprm);
352 security_bprm_free(&bprm);
360 allow_write_access(bprm.file);
367 * sys_execve() executes a new program.
369 asmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs)
374 filename = getname((char *) (long)regs.regs[4]);
375 error = PTR_ERR(filename);
376 if (IS_ERR(filename))
378 error = do_execve32(filename, (u32 *) (long)regs.regs[5],
379 (u32 *) (long)regs.regs[6], ®s);
389 unsigned short d_reclen;
390 char d_name[NAME_MAX + 1];
394 xlate_dirent(void *dirent64, void *dirent32, long n)
398 struct dirent32 *dirp32;
402 dirp = (struct dirent *)(dirent64 + off);
403 dirp32 = (struct dirent32 *)(dirent32 + off);
404 off += dirp->d_reclen;
405 dirp32->d_ino = dirp->d_ino;
406 dirp32->d_off = (unsigned int)dirp->d_off;
407 dirp32->d_reclen = dirp->d_reclen;
408 strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
414 sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
419 dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
420 if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
422 xlate_dirent(dirent64, dirent32, n);
426 asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
429 sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
432 struct dirent dirent64;
434 if ((n = old_readdir(fd, &dirent64, count)) < 0)
436 xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
441 struct compat_timeval ru_utime;
442 struct compat_timeval ru_stime;
460 put_rusage (struct rusage32 *ru, struct rusage *r)
464 if (verify_area(VERIFY_WRITE, ru, sizeof *ru))
467 err = __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
468 err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
469 err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
470 err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
471 err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
472 err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
473 err |= __put_user (r->ru_idrss, &ru->ru_idrss);
474 err |= __put_user (r->ru_isrss, &ru->ru_isrss);
475 err |= __put_user (r->ru_minflt, &ru->ru_minflt);
476 err |= __put_user (r->ru_majflt, &ru->ru_majflt);
477 err |= __put_user (r->ru_nswap, &ru->ru_nswap);
478 err |= __put_user (r->ru_inblock, &ru->ru_inblock);
479 err |= __put_user (r->ru_oublock, &ru->ru_oublock);
480 err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
481 err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
482 err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
483 err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
484 err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
490 sys32_wait4(compat_pid_t pid, unsigned int * stat_addr, int options,
491 struct rusage32 * ru)
494 return sys_wait4(pid, stat_addr, options, NULL);
499 mm_segment_t old_fs = get_fs();
502 ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
504 if (put_rusage (ru, &r)) return -EFAULT;
505 if (stat_addr && put_user (status, stat_addr))
512 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
514 return sys32_wait4(pid, stat_addr, options, NULL);
533 asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
537 mm_segment_t old_fs = get_fs ();
540 ret = sys_sysinfo(&s);
542 err = put_user (s.uptime, &info->uptime);
543 err |= __put_user (s.loads[0], &info->loads[0]);
544 err |= __put_user (s.loads[1], &info->loads[1]);
545 err |= __put_user (s.loads[2], &info->loads[2]);
546 err |= __put_user (s.totalram, &info->totalram);
547 err |= __put_user (s.freeram, &info->freeram);
548 err |= __put_user (s.sharedram, &info->sharedram);
549 err |= __put_user (s.bufferram, &info->bufferram);
550 err |= __put_user (s.totalswap, &info->totalswap);
551 err |= __put_user (s.freeswap, &info->freeswap);
552 err |= __put_user (s.procs, &info->procs);
553 err |= __put_user (s.totalhigh, &info->totalhigh);
554 err |= __put_user (s.freehigh, &info->freehigh);
555 err |= __put_user (s.mem_unit, &info->mem_unit);
561 #define RLIM_INFINITY32 0x7fffffff
562 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
570 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
571 int length_hi, int length_lo)
574 asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
575 int length_lo, int length_hi)
580 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
582 return sys_truncate(path, length);
586 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
587 int length_hi, int length_lo)
590 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
591 int length_lo, int length_hi)
596 length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
598 return sys_ftruncate(fd, length);
602 get_tv32(struct timeval *o, struct compat_timeval *i)
604 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
605 (__get_user(o->tv_sec, &i->tv_sec) |
606 __get_user(o->tv_usec, &i->tv_usec)));
610 put_tv32(struct compat_timeval *o, struct timeval *i)
612 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
613 (__put_user(i->tv_sec, &o->tv_sec) |
614 __put_user(i->tv_usec, &o->tv_usec)));
617 extern struct timezone sys_tz;
620 sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
624 do_gettimeofday(&ktv);
625 if (put_tv32(tv, &ktv))
629 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
635 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
639 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
641 if (__get_user(o->tv_sec, &i->tv_sec))
643 if (__get_user(usec, &i->tv_usec))
645 o->tv_nsec = usec * 1000;
650 sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
656 if (get_ts32(&kts, tv))
660 if (copy_from_user(&ktz, tz, sizeof(ktz)))
664 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
667 asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
668 unsigned int offset_low, loff_t * result,
671 return sys_llseek(fd, offset_high, offset_low, result, origin);
674 typedef ssize_t (*IO_fn_t)(struct file *, char *, size_t, loff_t *);
677 do_readv_writev32(int type, struct file *file, const struct compat_iovec *vector,
680 unsigned long tot_len;
681 struct iovec iovstack[UIO_FASTIOV];
682 struct iovec *iov=iovstack, *ivp;
687 /* First get the "struct iovec" from user memory and
688 * verify all the pointers
692 if(verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
694 if (count > UIO_MAXIOV)
696 if (count > UIO_FASTIOV) {
697 iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
709 __get_user(len, &vector->iov_len);
710 __get_user(buf, &vector->iov_base);
712 ivp->iov_base = (void *)A(buf);
713 ivp->iov_len = (__kernel_size_t) len;
719 inode = file->f_dentry->d_inode;
720 /* VERIFY_WRITE actually means a read, as we write to user space */
721 retval = locks_verify_area((type == VERIFY_WRITE
722 ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
723 inode, file, file->f_pos, tot_len);
730 /* Then do the actual IO. Note that sockets need to be handled
731 * specially as they have atomicity guarantees and can handle
737 err = sock_readv_writev(type, inode, file, iov, count, tot_len);
749 /* VERIFY_WRITE actually means a read, as we write to user space */
750 fn = file->f_op->read;
751 if (type == VERIFY_READ)
752 fn = (IO_fn_t) file->f_op->write;
758 base = ivp->iov_base;
762 nr = fn(file, base, len, &file->f_pos);
780 sys32_readv(int fd, struct compat_iovec *vector, u32 count)
789 if (file->f_op && (file->f_mode & FMODE_READ) &&
790 (file->f_op->readv || file->f_op->read))
791 ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
800 sys32_writev(int fd, struct compat_iovec *vector, u32 count)
809 if (file->f_op && (file->f_mode & FMODE_WRITE) &&
810 (file->f_op->writev || file->f_op->write))
811 ret = do_readv_writev32(VERIFY_READ, file, vector, count);
818 /* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
819 lseek back to original location. They fail just like lseek does on
820 non-seekable files. */
822 asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
823 size_t count, u32 unused, u64 a4, u64 a5)
827 ssize_t (*read)(struct file *, char *, size_t, loff_t *);
834 if (!(file->f_mode & FMODE_READ))
836 pos = merge_64(a4, a5);
837 ret = locks_verify_area(FLOCK_VERIFY_READ, file->f_dentry->d_inode,
842 if (!file->f_op || !(read = file->f_op->read))
846 ret = read(file, buf, count, &pos);
848 dnotify_parent(file->f_dentry, DN_ACCESS);
855 asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
856 size_t count, u32 unused, u64 a4, u64 a5)
860 ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
867 if (!(file->f_mode & FMODE_WRITE))
869 pos = merge_64(a4, a5);
870 ret = locks_verify_area(FLOCK_VERIFY_WRITE, file->f_dentry->d_inode,
875 if (!file->f_op || !(write = file->f_op->write))
880 ret = write(file, buf, count, &pos);
882 dnotify_parent(file->f_dentry, DN_MODIFY);
889 * Ooo, nasty. We need here to frob 32-bit unsigned longs to
890 * 64-bit unsigned longs.
894 get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
899 if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
906 __get_user(l, ufdset);
907 __get_user(h, ufdset+1);
909 *fdset++ = h << 32 | l;
913 __get_user(*fdset, ufdset);
915 /* Tricky, must clear full unsigned long in the
916 * kernel fdset at the end, this makes sure that
919 memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
925 set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
938 __put_user(l, ufdset);
939 __put_user(h, ufdset+1);
944 __put_user(*fdset, ufdset);
948 * We can actually return ERESTARTSYS instead of EINTR, but I'd
949 * like to be certain this leads to no problems. So I return
950 * EINTR just for safety.
952 * Update: ERESTARTSYS breaks at least the xview clock binary, so
953 * I'm trying ERESTARTNOHAND which restart only when you want to.
955 #define MAX_SELECT_SECONDS \
956 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
958 asmlinkage int sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, struct compat_timeval *tvp)
966 timeout = MAX_SCHEDULE_TIMEOUT;
970 if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
971 || (ret = __get_user(sec, &tvp->tv_sec))
972 || (ret = __get_user(usec, &tvp->tv_usec)))
976 if(sec < 0 || usec < 0)
979 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
980 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
981 timeout += sec * (unsigned long) HZ;
988 if (n > current->files->max_fdset)
989 n = current->files->max_fdset;
992 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
993 * since we used fdset we need to allocate memory in units of
998 bits = kmalloc(6 * size, GFP_KERNEL);
1001 fds.in = (unsigned long *) bits;
1002 fds.out = (unsigned long *) (bits + size);
1003 fds.ex = (unsigned long *) (bits + 2*size);
1004 fds.res_in = (unsigned long *) (bits + 3*size);
1005 fds.res_out = (unsigned long *) (bits + 4*size);
1006 fds.res_ex = (unsigned long *) (bits + 5*size);
1008 nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
1009 if ((ret = get_fd_set32(nn, fds.in, inp)) ||
1010 (ret = get_fd_set32(nn, fds.out, outp)) ||
1011 (ret = get_fd_set32(nn, fds.ex, exp)))
1013 zero_fd_set(n, fds.res_in);
1014 zero_fd_set(n, fds.res_out);
1015 zero_fd_set(n, fds.res_ex);
1017 ret = do_select(n, &fds, &timeout);
1019 if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
1020 time_t sec = 0, usec = 0;
1023 usec = timeout % HZ;
1024 usec *= (1000000/HZ);
1026 put_user(sec, &tvp->tv_sec);
1027 put_user(usec, &tvp->tv_usec);
1033 ret = -ERESTARTNOHAND;
1034 if (signal_pending(current))
1039 set_fd_set32(nn, inp, fds.res_in);
1040 set_fd_set32(nn, outp, fds.res_out);
1041 set_fd_set32(nn, exp, fds.res_ex);
1050 asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
1051 struct compat_timespec *interval)
1055 mm_segment_t old_fs = get_fs ();
1058 ret = sys_sched_rr_get_interval(pid, &t);
1060 if (put_user (t.tv_sec, &interval->tv_sec) ||
1061 __put_user (t.tv_nsec, &interval->tv_nsec))
1066 struct msgbuf32 { s32 mtype; char mtext[1]; };
1079 struct ipc64_perm32 {
1087 unsigned short __pad1;
1088 unsigned int __unused1;
1089 unsigned int __unused2;
1093 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
1094 compat_time_t sem_otime; /* last semop time */
1095 compat_time_t sem_ctime; /* last change time */
1096 u32 sem_base; /* ptr to first semaphore in array */
1097 u32 sem_pending; /* pending operations to be processed */
1098 u32 sem_pending_last; /* last pending operation */
1099 u32 undo; /* undo requests on this array */
1100 unsigned short sem_nsems; /* no. of semaphores in array */
1103 struct semid64_ds32 {
1104 struct ipc64_perm32 sem_perm;
1105 compat_time_t sem_otime;
1106 compat_time_t sem_ctime;
1107 unsigned int sem_nsems;
1108 unsigned int __unused1;
1109 unsigned int __unused2;
1114 struct ipc_perm32 msg_perm;
1117 compat_time_t msg_stime;
1118 compat_time_t msg_rtime;
1119 compat_time_t msg_ctime;
1122 unsigned short msg_cbytes;
1123 unsigned short msg_qnum;
1124 unsigned short msg_qbytes;
1125 compat_ipc_pid_t msg_lspid;
1126 compat_ipc_pid_t msg_lrpid;
1129 struct msqid64_ds32 {
1130 struct ipc64_perm32 msg_perm;
1131 compat_time_t msg_stime;
1132 unsigned int __unused1;
1133 compat_time_t msg_rtime;
1134 unsigned int __unused2;
1135 compat_time_t msg_ctime;
1136 unsigned int __unused3;
1137 unsigned int msg_cbytes;
1138 unsigned int msg_qnum;
1139 unsigned int msg_qbytes;
1140 compat_pid_t msg_lspid;
1141 compat_pid_t msg_lrpid;
1142 unsigned int __unused4;
1143 unsigned int __unused5;
1147 struct ipc_perm32 shm_perm;
1149 compat_time_t shm_atime;
1150 compat_time_t shm_dtime;
1151 compat_time_t shm_ctime;
1152 compat_ipc_pid_t shm_cpid;
1153 compat_ipc_pid_t shm_lpid;
1154 unsigned short shm_nattch;
1157 struct shmid64_ds32 {
1158 struct ipc64_perm32 shm_perm;
1159 compat_size_t shm_segsz;
1160 compat_time_t shm_atime;
1161 compat_time_t shm_dtime;
1162 compat_time_t shm_ctime;
1163 compat_pid_t shm_cpid;
1164 compat_pid_t shm_lpid;
1165 unsigned int shm_nattch;
1166 unsigned int __unused1;
1167 unsigned int __unused2;
1170 struct ipc_kludge32 {
1176 do_sys32_semctl(int first, int second, int third, void *uptr)
1181 struct semid64_ds s;
1182 mm_segment_t old_fs;
1187 if (get_user (pad, (u32 *)uptr))
1189 if ((third & ~IPC_64) == SETVAL)
1190 fourth.val = (int)pad;
1192 fourth.__pad = (void *)A(pad);
1193 switch (third & ~IPC_64) {
1205 err = sys_semctl (first, second, third, fourth);
1213 err = sys_semctl(first, second, third | IPC_64, fourth);
1216 if (third & IPC_64) {
1217 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
1219 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
1223 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
1224 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
1225 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
1226 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
1227 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
1228 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
1229 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
1230 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
1231 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
1232 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
1234 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
1236 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
1240 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
1241 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
1242 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
1243 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
1244 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
1245 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
1246 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
1247 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
1248 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
1249 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
1264 do_sys32_msgsnd (int first, int second, int third, void *uptr)
1266 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
1268 mm_segment_t old_fs;
1273 p = kmalloc (second + sizeof (struct msgbuf)
1277 err = get_user (p->mtype, &up->mtype);
1280 err |= __copy_from_user (p->mtext, &up->mtext, second);
1285 err = sys_msgsnd (first, p, second, third);
1294 do_sys32_msgrcv (int first, int second, int msgtyp, int third,
1295 int version, void *uptr)
1297 struct msgbuf32 *up;
1299 mm_segment_t old_fs;
1303 struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
1304 struct ipc_kludge32 ipck;
1310 if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
1312 uptr = (void *)AA(ipck.msgp);
1313 msgtyp = ipck.msgtyp;
1319 p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
1324 err = sys_msgrcv (first, p, second + 4, msgtyp, third);
1328 up = (struct msgbuf32 *)uptr;
1329 if (put_user (p->mtype, &up->mtype) ||
1330 __copy_to_user (&up->mtext, p->mtext, err))
1339 do_sys32_msgctl (int first, int second, void *uptr)
1341 int err = -EINVAL, err2;
1342 struct msqid64_ds m;
1343 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
1344 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
1345 mm_segment_t old_fs;
1347 switch (second & ~IPC_64) {
1351 err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
1355 if (second & IPC_64) {
1356 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
1360 err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
1361 err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
1362 err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
1363 err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
1365 if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
1369 err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
1370 err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
1371 err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
1372 err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
1378 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
1386 err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
1388 if (second & IPC_64) {
1389 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
1393 err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
1394 err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
1395 err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
1396 err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
1397 err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
1398 err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
1399 err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
1400 err2 |= __put_user(m.msg_stime, &up64->msg_stime);
1401 err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
1402 err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
1403 err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
1404 err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
1405 err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
1406 err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
1407 err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
1411 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
1415 err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
1416 err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
1417 err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
1418 err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
1419 err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
1420 err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
1421 err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
1422 err2 |= __put_user(m.msg_stime, &up32->msg_stime);
1423 err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
1424 err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
1425 err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
1426 err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
1427 err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
1428 err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
1429 err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
1440 do_sys32_shmat (int first, int second, int third, int version, void *uptr)
1442 unsigned long raddr;
1443 u32 *uaddr = (u32 *)A((u32)third);
1448 err = do_shmat (first, uptr, second, &raddr);
1451 err = put_user (raddr, uaddr);
1457 u32 shm_tot, shm_rss, shm_swp;
1458 u32 swap_attempts, swap_successes;
1462 do_sys32_shmctl (int first, int second, void *uptr)
1464 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
1465 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
1466 struct shm_info32 *uip = (struct shm_info32 *)uptr;
1467 int err = -EFAULT, err2;
1468 struct shmid64_ds s64;
1469 mm_segment_t old_fs;
1473 switch (second & ~IPC_64) {
1475 second = IPC_INFO; /* So that we don't have to translate it */
1479 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
1482 if (second & IPC_64) {
1483 err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
1484 err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
1485 err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
1487 err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
1488 err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
1489 err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
1495 err = sys_shmctl(first, second & ~IPC_64, &s);
1503 err = sys_shmctl(first, second | IPC_64, (void *) &s64);
1507 if (second & IPC_64) {
1508 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
1512 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
1513 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
1514 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
1515 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
1516 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
1517 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
1518 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
1519 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
1520 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
1521 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
1522 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
1523 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
1524 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
1525 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
1527 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
1531 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
1532 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
1533 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
1534 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
1535 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
1536 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
1537 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
1538 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
1539 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
1540 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
1541 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
1542 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
1543 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
1544 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
1553 err = sys_shmctl(first, second, (void *)&si);
1557 err2 = put_user(si.used_ids, &uip->used_ids);
1558 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
1559 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
1560 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
1561 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
1562 err2 |= __put_user (si.swap_successes, &uip->swap_successes);
1575 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
1576 const struct compat_timespec *timeout32)
1578 struct compat_timespec t32;
1579 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
1581 if (copy_from_user(&t32, timeout32, sizeof(t32)))
1584 if (put_user(t32.tv_sec, &t64->tv_sec) ||
1585 put_user(t32.tv_nsec, &t64->tv_nsec))
1588 return sys_semtimedop(semid, tsems, nsems, t64);
1592 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
1596 version = call >> 16; /* hack for backward compatibility */
1601 /* struct sembuf is the same on 32 and 64bit :)) */
1602 err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
1606 err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
1607 (const struct compat_timespec __user *)AA(fifth));
1610 err = sys_semget (first, second, third);
1613 err = do_sys32_semctl (first, second, third,
1618 err = do_sys32_msgsnd (first, second, third,
1622 err = do_sys32_msgrcv (first, second, fifth, third,
1623 version, (void *)AA(ptr));
1626 err = sys_msgget ((key_t) first, second);
1629 err = do_sys32_msgctl (first, second, (void *)AA(ptr));
1633 err = do_sys32_shmat (first, second, third,
1634 version, (void *)AA(ptr));
1637 err = sys_shmdt ((char *)A(ptr));
1640 err = sys_shmget (first, second, third);
1643 err = do_sys32_shmctl (first, second, (void *)AA(ptr));
1653 asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
1654 int shmflg, int32_t *addr)
1656 unsigned long raddr;
1659 err = do_shmat(shmid, shmaddr, shmflg, &raddr);
1663 return put_user(raddr, addr);
1666 struct sysctl_args32
1668 compat_caddr_t name;
1670 compat_caddr_t oldval;
1671 compat_caddr_t oldlenp;
1672 compat_caddr_t newval;
1673 compat_size_t newlen;
1674 unsigned int __unused[4];
1677 #ifdef CONFIG_SYSCTL
1679 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1681 struct sysctl_args32 tmp;
1683 size_t oldlen, *oldlenp = NULL;
1684 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1686 if (copy_from_user(&tmp, args, sizeof(tmp)))
1689 if (tmp.oldval && tmp.oldlenp) {
1690 /* Duh, this is ugly and might not work if sysctl_args
1691 is in read-only memory, but do_sysctl does indirectly
1692 a lot of uaccess in both directions and we'd have to
1693 basically copy the whole sysctl.c here, and
1694 glibc's __sysctl uses rw memory for the structure
1696 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1697 put_user(oldlen, (size_t *)addr))
1699 oldlenp = (size_t *)addr;
1703 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1704 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1708 if (get_user(oldlen, (size_t *)addr) ||
1709 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1712 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1717 #else /* CONFIG_SYSCTL */
1719 asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
1724 #endif /* CONFIG_SYSCTL */
1726 asmlinkage long sys32_newuname(struct new_utsname * name)
1730 down_read(&uts_sem);
1731 if (copy_to_user(name, vx_new_utsname(), sizeof *name))
1735 if (current->personality == PER_LINUX32 && !ret)
1736 if (copy_to_user(name->machine, "mips\0\0\0", 8))
1742 asmlinkage int sys32_personality(unsigned long personality)
1745 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
1746 personality = PER_LINUX32;
1747 ret = sys_personality(personality);
1748 if (ret == PER_LINUX32)
1753 /* ustat compatibility */
1755 compat_daddr_t f_tfree;
1756 compat_ino_t f_tinode;
1761 extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
1763 asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
1767 struct ustat32 tmp32;
1768 mm_segment_t old_fs = get_fs();
1771 err = sys_ustat(dev, &tmp);
1777 memset(&tmp32,0,sizeof(struct ustat32));
1778 tmp32.f_tfree = tmp.f_tfree;
1779 tmp32.f_tinode = tmp.f_tinode;
1781 err = copy_to_user(ubuf32,&tmp32,sizeof(struct ustat32)) ? -EFAULT : 0;
1787 /* Handle adjtimex compatibility. */
1791 s32 offset, freq, maxerror, esterror;
1792 s32 status, constant, precision, tolerance;
1793 struct compat_timeval time;
1795 s32 ppsfreq, jitter, shift, stabil;
1796 s32 jitcnt, calcnt, errcnt, stbcnt;
1797 s32 :32; s32 :32; s32 :32; s32 :32;
1798 s32 :32; s32 :32; s32 :32; s32 :32;
1799 s32 :32; s32 :32; s32 :32; s32 :32;
1802 extern int do_adjtimex(struct timex *);
1804 asmlinkage int sys32_adjtimex(struct timex32 *utp)
1809 memset(&txc, 0, sizeof(struct timex));
1811 if (get_user(txc.modes, &utp->modes) ||
1812 __get_user(txc.offset, &utp->offset) ||
1813 __get_user(txc.freq, &utp->freq) ||
1814 __get_user(txc.maxerror, &utp->maxerror) ||
1815 __get_user(txc.esterror, &utp->esterror) ||
1816 __get_user(txc.status, &utp->status) ||
1817 __get_user(txc.constant, &utp->constant) ||
1818 __get_user(txc.precision, &utp->precision) ||
1819 __get_user(txc.tolerance, &utp->tolerance) ||
1820 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1821 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1822 __get_user(txc.tick, &utp->tick) ||
1823 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1824 __get_user(txc.jitter, &utp->jitter) ||
1825 __get_user(txc.shift, &utp->shift) ||
1826 __get_user(txc.stabil, &utp->stabil) ||
1827 __get_user(txc.jitcnt, &utp->jitcnt) ||
1828 __get_user(txc.calcnt, &utp->calcnt) ||
1829 __get_user(txc.errcnt, &utp->errcnt) ||
1830 __get_user(txc.stbcnt, &utp->stbcnt))
1833 ret = do_adjtimex(&txc);
1835 if (put_user(txc.modes, &utp->modes) ||
1836 __put_user(txc.offset, &utp->offset) ||
1837 __put_user(txc.freq, &utp->freq) ||
1838 __put_user(txc.maxerror, &utp->maxerror) ||
1839 __put_user(txc.esterror, &utp->esterror) ||
1840 __put_user(txc.status, &utp->status) ||
1841 __put_user(txc.constant, &utp->constant) ||
1842 __put_user(txc.precision, &utp->precision) ||
1843 __put_user(txc.tolerance, &utp->tolerance) ||
1844 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1845 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1846 __put_user(txc.tick, &utp->tick) ||
1847 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1848 __put_user(txc.jitter, &utp->jitter) ||
1849 __put_user(txc.shift, &utp->shift) ||
1850 __put_user(txc.stabil, &utp->stabil) ||
1851 __put_user(txc.jitcnt, &utp->jitcnt) ||
1852 __put_user(txc.calcnt, &utp->calcnt) ||
1853 __put_user(txc.errcnt, &utp->errcnt) ||
1854 __put_user(txc.stbcnt, &utp->stbcnt))
1860 asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
1863 mm_segment_t old_fs = get_fs();
1867 if (offset && get_user(of, offset))
1871 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1874 if (offset && put_user(of, offset))
1880 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
1883 return sys_readahead(fd, merge_64(a2, a3), count);
1886 /* Argument list sizes for sys_socketcall */
1887 #define AL(x) ((x) * sizeof(unsigned int))
1888 static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
1889 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
1890 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3)};
1894 * System call vectors.
1896 * Argument checking cleaned up. Saved 20% in size.
1897 * This function doesn't need to set the kernel lock because
1898 * it is set by the callees.
1901 asmlinkage long sys32_socketcall(int call, unsigned int *args32)
1907 extern asmlinkage long sys_socket(int family, int type, int protocol);
1908 extern asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen);
1909 extern asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen);
1910 extern asmlinkage long sys_listen(int fd, int backlog);
1911 extern asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen);
1912 extern asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1913 extern asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len);
1914 extern asmlinkage long sys_socketpair(int family, int type, int protocol, int __user *usockvec);
1915 extern asmlinkage long sys_send(int fd, void __user * buff, size_t len, unsigned flags);
1916 extern asmlinkage long sys_sendto(int fd, void __user * buff, size_t len, unsigned flags,
1917 struct sockaddr __user *addr, int addr_len);
1918 extern asmlinkage long sys_recv(int fd, void __user * ubuf, size_t size, unsigned flags);
1919 extern asmlinkage long sys_recvfrom(int fd, void __user * ubuf, size_t size, unsigned flags,
1920 struct sockaddr __user *addr, int __user *addr_len);
1921 extern asmlinkage long sys_shutdown(int fd, int how);
1922 extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
1923 extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
1924 extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
1925 extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
1928 if(call<1||call>SYS_RECVMSG)
1931 /* copy_from_user should be SMP safe. */
1932 if (copy_from_user(a, args32, socketcall_nargs[call]))
1941 err = sys_socket(a0,a1,a[2]);
1944 err = sys_bind(a0,(struct sockaddr __user *)A(a1), a[2]);
1947 err = sys_connect(a0, (struct sockaddr __user *)A(a1), a[2]);
1950 err = sys_listen(a0,a1);
1953 err = sys_accept(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1955 case SYS_GETSOCKNAME:
1956 err = sys_getsockname(a0,(struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1958 case SYS_GETPEERNAME:
1959 err = sys_getpeername(a0, (struct sockaddr __user *)A(a1), (int __user *)A(a[2]));
1961 case SYS_SOCKETPAIR:
1962 err = sys_socketpair(a0,a1, a[2], (int __user *)A(a[3]));
1965 err = sys_send(a0, (void __user *)A(a1), a[2], a[3]);
1968 err = sys_sendto(a0,(void __user *)A(a1), a[2], a[3],
1969 (struct sockaddr __user *)A(a[4]), a[5]);
1972 err = sys_recv(a0, (void __user *)A(a1), a[2], a[3]);
1975 err = sys_recvfrom(a0, (void __user *)A(a1), a[2], a[3],
1976 (struct sockaddr __user *)A(a[4]), (int __user *)A(a[5]));
1979 err = sys_shutdown(a0,a1);
1981 case SYS_SETSOCKOPT:
1982 err = sys_setsockopt(a0, a1, a[2], (char __user *)A(a[3]), a[4]);
1984 case SYS_GETSOCKOPT:
1985 err = sys_getsockopt(a0, a1, a[2], (char __user *)A(a[3]), (int __user *)A(a[4]));
1988 err = sys_sendmsg(a0, (struct msghdr __user *) A(a1), a[2]);
1991 err = sys_recvmsg(a0, (struct msghdr __user *) A(a1), a[2]);