2 * 32bit Socket syscall emulation. Based on arch/sparc64/kernel/sys_sparc32.c.
4 * Copyright (C) 2000 VA Linux Co
5 * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
6 * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
7 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
8 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
9 * Copyright (C) 2000 Hewlett-Packard Co.
10 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
11 * Copyright (C) 2000,2001 Andi Kleen, SuSE Labs
14 #include <linux/kernel.h>
15 #include <linux/gfp.h>
17 #include <linux/types.h>
18 #include <linux/file.h>
19 #include <linux/icmpv6.h>
20 #include <linux/socket.h>
21 #include <linux/syscalls.h>
22 #include <linux/filter.h>
23 #include <linux/compat.h>
24 #include <linux/security.h>
25 #include <linux/audit.h>
26 #include <linux/export.h>
32 #include <linux/uaccess.h>
33 #include <net/compat.h>
35 int get_compat_msghdr(struct msghdr *kmsg,
36 struct compat_msghdr __user *umsg,
37 struct sockaddr __user **save_addr,
40 compat_uptr_t uaddr, uiov, tmp3;
41 compat_size_t nr_segs;
44 if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
45 __get_user(uaddr, &umsg->msg_name) ||
46 __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
47 __get_user(uiov, &umsg->msg_iov) ||
48 __get_user(nr_segs, &umsg->msg_iovlen) ||
49 __get_user(tmp3, &umsg->msg_control) ||
50 __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
51 __get_user(kmsg->msg_flags, &umsg->msg_flags))
55 kmsg->msg_namelen = 0;
57 if (kmsg->msg_namelen < 0)
60 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
61 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
62 kmsg->msg_control = compat_ptr(tmp3);
65 *save_addr = compat_ptr(uaddr);
67 if (uaddr && kmsg->msg_namelen) {
69 err = move_addr_to_kernel(compat_ptr(uaddr),
76 kmsg->msg_name = NULL;
77 kmsg->msg_namelen = 0;
80 if (nr_segs > UIO_MAXIOV)
83 kmsg->msg_iocb = NULL;
85 return compat_import_iovec(save_addr ? READ : WRITE,
86 compat_ptr(uiov), nr_segs,
87 UIO_FASTIOV, iov, &kmsg->msg_iter);
91 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
93 #define CMSG_COMPAT_DATA(cmsg) \
94 ((void __user *)((char __user *)(cmsg) + sizeof(struct compat_cmsghdr)))
95 #define CMSG_COMPAT_SPACE(len) \
96 (sizeof(struct compat_cmsghdr) + CMSG_COMPAT_ALIGN(len))
97 #define CMSG_COMPAT_LEN(len) \
98 (sizeof(struct compat_cmsghdr) + (len))
100 #define CMSG_COMPAT_FIRSTHDR(msg) \
101 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
102 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
103 (struct compat_cmsghdr __user *)NULL)
105 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
106 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
107 (ucmlen) <= (unsigned long) \
108 ((mhdr)->msg_controllen - \
109 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
111 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
112 struct compat_cmsghdr __user *cmsg, int cmsg_len)
114 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
115 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
118 return (struct compat_cmsghdr __user *)ptr;
121 /* There is a lot of hair here because the alignment rules (and
122 * thus placement) of cmsg headers and length are different for
123 * 32-bit apps. -DaveM
125 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
126 unsigned char *stackbuf, int stackbuf_size)
128 struct compat_cmsghdr __user *ucmsg;
129 struct cmsghdr *kcmsg, *kcmsg_base;
130 compat_size_t ucmlen;
131 __kernel_size_t kcmlen, tmp;
134 BUILD_BUG_ON(sizeof(struct compat_cmsghdr) !=
135 CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)));
138 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
139 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
140 while (ucmsg != NULL) {
141 if (get_user(ucmlen, &ucmsg->cmsg_len))
145 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
148 tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));
149 tmp = CMSG_ALIGN(tmp);
151 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
156 /* The kcmlen holds the 64-bit version of the control length.
157 * It may not be modified as we do not stick it into the kmsg
158 * until we have successfully copied over all of the data
161 if (kcmlen > stackbuf_size)
162 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
166 /* Now copy them over neatly. */
167 memset(kcmsg, 0, kcmlen);
168 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
169 while (ucmsg != NULL) {
170 if (__get_user(ucmlen, &ucmsg->cmsg_len))
172 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
174 tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));
175 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
177 kcmsg->cmsg_len = tmp;
178 tmp = CMSG_ALIGN(tmp);
179 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
180 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
181 copy_from_user(CMSG_DATA(kcmsg),
182 CMSG_COMPAT_DATA(ucmsg),
183 (ucmlen - sizeof(*ucmsg))))
187 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
188 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
191 /* Ok, looks like we made it. Hook it up and return success. */
192 kmsg->msg_control = kcmsg_base;
193 kmsg->msg_controllen = kcmlen;
199 if (kcmsg_base != (struct cmsghdr *)stackbuf)
200 sock_kfree_s(sk, kcmsg_base, kcmlen);
204 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
206 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
207 struct compat_cmsghdr cmhdr;
208 struct compat_timeval ctv;
209 struct compat_timespec cts[3];
212 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
213 kmsg->msg_flags |= MSG_CTRUNC;
214 return 0; /* XXX: return error? check spec. */
217 if (!COMPAT_USE_64BIT_TIME) {
218 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
219 struct timeval *tv = (struct timeval *)data;
220 ctv.tv_sec = tv->tv_sec;
221 ctv.tv_usec = tv->tv_usec;
225 if (level == SOL_SOCKET &&
226 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
227 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
229 struct timespec *ts = (struct timespec *)data;
230 for (i = 0; i < count; i++) {
231 cts[i].tv_sec = ts[i].tv_sec;
232 cts[i].tv_nsec = ts[i].tv_nsec;
235 len = sizeof(cts[0]) * count;
239 cmlen = CMSG_COMPAT_LEN(len);
240 if (kmsg->msg_controllen < cmlen) {
241 kmsg->msg_flags |= MSG_CTRUNC;
242 cmlen = kmsg->msg_controllen;
244 cmhdr.cmsg_level = level;
245 cmhdr.cmsg_type = type;
246 cmhdr.cmsg_len = cmlen;
248 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
250 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
252 cmlen = CMSG_COMPAT_SPACE(len);
253 if (kmsg->msg_controllen < cmlen)
254 cmlen = kmsg->msg_controllen;
255 kmsg->msg_control += cmlen;
256 kmsg->msg_controllen -= cmlen;
260 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
262 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
263 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
264 int fdnum = scm->fp->count;
265 struct file **fp = scm->fp->fp;
272 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
274 err = security_file_receive(fp[i]);
277 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
282 err = put_user(new_fd, cmfptr);
284 put_unused_fd(new_fd);
287 /* Bump the usage count and install the file. */
288 fd_install(new_fd, get_file(fp[i]));
292 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
293 err = put_user(SOL_SOCKET, &cm->cmsg_level);
295 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
297 err = put_user(cmlen, &cm->cmsg_len);
299 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
300 kmsg->msg_control += cmlen;
301 kmsg->msg_controllen -= cmlen;
305 kmsg->msg_flags |= MSG_CTRUNC;
308 * All of the files that fit in the message have had their
309 * usage counts incremented, so we just free the list.
314 /* allocate a 64-bit sock_fprog on the user stack for duration of syscall. */
315 struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval)
317 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
318 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
322 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
323 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
324 __get_user(len, &fprog32->len) ||
325 __get_user(ptr, &fprog32->filter) ||
326 __put_user(len, &kfprog->len) ||
327 __put_user(compat_ptr(ptr), &kfprog->filter))
332 EXPORT_SYMBOL_GPL(get_compat_bpf_fprog);
334 static int do_set_attach_filter(struct socket *sock, int level, int optname,
335 char __user *optval, unsigned int optlen)
337 struct sock_fprog __user *kfprog;
339 kfprog = get_compat_bpf_fprog(optval);
343 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
344 sizeof(struct sock_fprog));
347 static int do_set_sock_timeout(struct socket *sock, int level,
348 int optname, char __user *optval, unsigned int optlen)
350 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
351 struct timeval ktime;
355 if (optlen < sizeof(*up))
357 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
358 __get_user(ktime.tv_sec, &up->tv_sec) ||
359 __get_user(ktime.tv_usec, &up->tv_usec))
363 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
369 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
370 char __user *optval, unsigned int optlen)
372 if (optname == SO_ATTACH_FILTER ||
373 optname == SO_ATTACH_REUSEPORT_CBPF)
374 return do_set_attach_filter(sock, level, optname,
376 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
377 return do_set_sock_timeout(sock, level, optname, optval, optlen);
379 return sock_setsockopt(sock, level, optname, optval, optlen);
382 COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
383 char __user *, optval, unsigned int, optlen)
386 struct socket *sock = sockfd_lookup(fd, &err);
389 err = security_socket_setsockopt(sock, level, optname);
395 if (level == SOL_SOCKET)
396 err = compat_sock_setsockopt(sock, level,
397 optname, optval, optlen);
398 else if (sock->ops->compat_setsockopt)
399 err = sock->ops->compat_setsockopt(sock, level,
400 optname, optval, optlen);
402 err = sock->ops->setsockopt(sock, level,
403 optname, optval, optlen);
409 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
410 char __user *optval, int __user *optlen)
412 struct compat_timeval __user *up;
413 struct timeval ktime;
417 up = (struct compat_timeval __user *) optval;
418 if (get_user(len, optlen))
420 if (len < sizeof(*up))
425 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
429 if (put_user(sizeof(*up), optlen) ||
430 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
431 __put_user(ktime.tv_sec, &up->tv_sec) ||
432 __put_user(ktime.tv_usec, &up->tv_usec))
438 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
439 char __user *optval, int __user *optlen)
441 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
442 return do_get_sock_timeout(sock, level, optname, optval, optlen);
443 return sock_getsockopt(sock, level, optname, optval, optlen);
446 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
448 struct compat_timeval __user *ctv;
452 if (COMPAT_USE_64BIT_TIME)
453 return sock_get_timestamp(sk, userstamp);
455 ctv = (struct compat_timeval __user *) userstamp;
457 if (!sock_flag(sk, SOCK_TIMESTAMP))
458 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
459 tv = ktime_to_timeval(sk->sk_stamp);
462 if (tv.tv_sec == 0) {
463 sk->sk_stamp = ktime_get_real();
464 tv = ktime_to_timeval(sk->sk_stamp);
467 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
468 put_user(tv.tv_usec, &ctv->tv_usec))
472 EXPORT_SYMBOL(compat_sock_get_timestamp);
474 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
476 struct compat_timespec __user *ctv;
480 if (COMPAT_USE_64BIT_TIME)
481 return sock_get_timestampns (sk, userstamp);
483 ctv = (struct compat_timespec __user *) userstamp;
485 if (!sock_flag(sk, SOCK_TIMESTAMP))
486 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
487 ts = ktime_to_timespec(sk->sk_stamp);
490 if (ts.tv_sec == 0) {
491 sk->sk_stamp = ktime_get_real();
492 ts = ktime_to_timespec(sk->sk_stamp);
495 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
496 put_user(ts.tv_nsec, &ctv->tv_nsec))
500 EXPORT_SYMBOL(compat_sock_get_timestampns);
502 COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
503 char __user *, optval, int __user *, optlen)
506 struct socket *sock = sockfd_lookup(fd, &err);
509 err = security_socket_getsockopt(sock, level, optname);
515 if (level == SOL_SOCKET)
516 err = compat_sock_getsockopt(sock, level,
517 optname, optval, optlen);
518 else if (sock->ops->compat_getsockopt)
519 err = sock->ops->compat_getsockopt(sock, level,
520 optname, optval, optlen);
522 err = sock->ops->getsockopt(sock, level,
523 optname, optval, optlen);
529 struct compat_group_req {
531 struct __kernel_sockaddr_storage gr_group
535 struct compat_group_source_req {
537 struct __kernel_sockaddr_storage gsr_group
539 struct __kernel_sockaddr_storage gsr_source
543 struct compat_group_filter {
545 struct __kernel_sockaddr_storage gf_group
549 struct __kernel_sockaddr_storage gf_slist[1]
553 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
554 sizeof(struct __kernel_sockaddr_storage))
557 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
558 char __user *optval, unsigned int optlen,
559 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
561 char __user *koptval = optval;
562 int koptlen = optlen;
565 case MCAST_JOIN_GROUP:
566 case MCAST_LEAVE_GROUP:
568 struct compat_group_req __user *gr32 = (void *)optval;
569 struct group_req __user *kgr =
570 compat_alloc_user_space(sizeof(struct group_req));
573 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
574 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
575 __get_user(interface, &gr32->gr_interface) ||
576 __put_user(interface, &kgr->gr_interface) ||
577 copy_in_user(&kgr->gr_group, &gr32->gr_group,
578 sizeof(kgr->gr_group)))
580 koptval = (char __user *)kgr;
581 koptlen = sizeof(struct group_req);
584 case MCAST_JOIN_SOURCE_GROUP:
585 case MCAST_LEAVE_SOURCE_GROUP:
586 case MCAST_BLOCK_SOURCE:
587 case MCAST_UNBLOCK_SOURCE:
589 struct compat_group_source_req __user *gsr32 = (void *)optval;
590 struct group_source_req __user *kgsr = compat_alloc_user_space(
591 sizeof(struct group_source_req));
594 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
595 !access_ok(VERIFY_WRITE, kgsr,
596 sizeof(struct group_source_req)) ||
597 __get_user(interface, &gsr32->gsr_interface) ||
598 __put_user(interface, &kgsr->gsr_interface) ||
599 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
600 sizeof(kgsr->gsr_group)) ||
601 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
602 sizeof(kgsr->gsr_source)))
604 koptval = (char __user *)kgsr;
605 koptlen = sizeof(struct group_source_req);
610 struct compat_group_filter __user *gf32 = (void *)optval;
611 struct group_filter __user *kgf;
612 u32 interface, fmode, numsrc;
614 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
615 __get_user(interface, &gf32->gf_interface) ||
616 __get_user(fmode, &gf32->gf_fmode) ||
617 __get_user(numsrc, &gf32->gf_numsrc))
619 koptlen = optlen + sizeof(struct group_filter) -
620 sizeof(struct compat_group_filter);
621 if (koptlen < GROUP_FILTER_SIZE(numsrc))
623 kgf = compat_alloc_user_space(koptlen);
624 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
625 __put_user(interface, &kgf->gf_interface) ||
626 __put_user(fmode, &kgf->gf_fmode) ||
627 __put_user(numsrc, &kgf->gf_numsrc) ||
628 copy_in_user(&kgf->gf_group, &gf32->gf_group,
629 sizeof(kgf->gf_group)) ||
630 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
631 numsrc * sizeof(kgf->gf_slist[0]))))
633 koptval = (char __user *)kgf;
640 return setsockopt(sock, level, optname, koptval, koptlen);
642 EXPORT_SYMBOL(compat_mc_setsockopt);
644 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
645 char __user *optval, int __user *optlen,
646 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
648 struct compat_group_filter __user *gf32 = (void *)optval;
649 struct group_filter __user *kgf;
651 u32 interface, fmode, numsrc;
654 if (optname != MCAST_MSFILTER)
655 return getsockopt(sock, level, optname, optval, optlen);
657 koptlen = compat_alloc_user_space(sizeof(*koptlen));
658 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
659 __get_user(ulen, optlen))
662 /* adjust len for pad */
663 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
665 if (klen < GROUP_FILTER_SIZE(0))
668 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
669 __put_user(klen, koptlen))
672 /* have to allow space for previous compat_alloc_user_space, too */
673 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
675 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
676 __get_user(interface, &gf32->gf_interface) ||
677 __get_user(fmode, &gf32->gf_fmode) ||
678 __get_user(numsrc, &gf32->gf_numsrc) ||
679 __put_user(interface, &kgf->gf_interface) ||
680 __put_user(fmode, &kgf->gf_fmode) ||
681 __put_user(numsrc, &kgf->gf_numsrc) ||
682 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
685 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
689 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
690 __get_user(klen, koptlen))
693 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
695 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
696 __put_user(ulen, optlen))
699 if (!access_ok(VERIFY_READ, kgf, klen) ||
700 !access_ok(VERIFY_WRITE, gf32, ulen) ||
701 __get_user(interface, &kgf->gf_interface) ||
702 __get_user(fmode, &kgf->gf_fmode) ||
703 __get_user(numsrc, &kgf->gf_numsrc) ||
704 __put_user(interface, &gf32->gf_interface) ||
705 __put_user(fmode, &gf32->gf_fmode) ||
706 __put_user(numsrc, &gf32->gf_numsrc))
711 klen -= GROUP_FILTER_SIZE(0);
712 copylen = numsrc * sizeof(gf32->gf_slist[0]);
715 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
720 EXPORT_SYMBOL(compat_mc_getsockopt);
723 /* Argument list sizes for compat_sys_socketcall */
724 #define AL(x) ((x) * sizeof(u32))
725 static unsigned char nas[21] = {
726 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
727 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
728 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
733 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
735 return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
738 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
739 unsigned int, vlen, unsigned int, flags)
741 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
742 flags | MSG_CMSG_COMPAT);
745 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
747 return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
750 COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
752 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
755 COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
756 unsigned int, flags, struct sockaddr __user *, addr,
757 int __user *, addrlen)
759 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
762 COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
763 unsigned int, vlen, unsigned int, flags,
764 struct compat_timespec __user *, timeout)
767 struct timespec ktspec;
770 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
771 flags | MSG_CMSG_COMPAT, NULL);
773 if (compat_get_timespec(&ktspec, timeout))
776 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
777 flags | MSG_CMSG_COMPAT, &ktspec);
778 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
784 COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
791 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
797 if (copy_from_user(a, args, len))
800 ret = audit_socketcall_compat(len / sizeof(a[0]), a);
809 ret = sys_socket(a0, a1, a[2]);
812 ret = sys_bind(a0, compat_ptr(a1), a[2]);
815 ret = sys_connect(a0, compat_ptr(a1), a[2]);
818 ret = sys_listen(a0, a1);
821 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
823 case SYS_GETSOCKNAME:
824 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
826 case SYS_GETPEERNAME:
827 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
830 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
833 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
836 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
839 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
842 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
843 compat_ptr(a[4]), compat_ptr(a[5]));
846 ret = sys_shutdown(a0, a1);
849 ret = compat_sys_setsockopt(a0, a1, a[2],
850 compat_ptr(a[3]), a[4]);
853 ret = compat_sys_getsockopt(a0, a1, a[2],
854 compat_ptr(a[3]), compat_ptr(a[4]));
857 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
860 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
863 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
866 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
870 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);