1 // SPDX-License-Identifier: GPL-2.0-only
3 * 32bit Socket syscall emulation. Based on arch/sparc64/kernel/sys_sparc32.c.
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 Andi Kleen, SuSE Labs
15 #include <linux/kernel.h>
16 #include <linux/gfp.h>
18 #include <linux/types.h>
19 #include <linux/file.h>
20 #include <linux/icmpv6.h>
21 #include <linux/socket.h>
22 #include <linux/syscalls.h>
23 #include <linux/filter.h>
24 #include <linux/compat.h>
25 #include <linux/security.h>
26 #include <linux/audit.h>
27 #include <linux/export.h>
33 #include <linux/uaccess.h>
34 #include <net/compat.h>
36 int __get_compat_msghdr(struct msghdr *kmsg,
37 struct compat_msghdr __user *umsg,
38 struct sockaddr __user **save_addr,
39 compat_uptr_t *ptr, compat_size_t *len)
41 struct compat_msghdr msg;
44 if (copy_from_user(&msg, umsg, sizeof(*umsg)))
47 kmsg->msg_flags = msg.msg_flags;
48 kmsg->msg_namelen = msg.msg_namelen;
51 kmsg->msg_namelen = 0;
53 if (kmsg->msg_namelen < 0)
56 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
57 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
59 kmsg->msg_control = compat_ptr(msg.msg_control);
60 kmsg->msg_controllen = msg.msg_controllen;
63 *save_addr = compat_ptr(msg.msg_name);
65 if (msg.msg_name && kmsg->msg_namelen) {
67 err = move_addr_to_kernel(compat_ptr(msg.msg_name),
74 kmsg->msg_name = NULL;
75 kmsg->msg_namelen = 0;
78 if (msg.msg_iovlen > UIO_MAXIOV)
81 kmsg->msg_iocb = NULL;
83 *len = msg.msg_iovlen;
87 int get_compat_msghdr(struct msghdr *kmsg,
88 struct compat_msghdr __user *umsg,
89 struct sockaddr __user **save_addr,
96 err = __get_compat_msghdr(kmsg, umsg, save_addr, &ptr, &len);
100 err = compat_import_iovec(save_addr ? READ : WRITE, compat_ptr(ptr),
101 len, UIO_FASTIOV, iov, &kmsg->msg_iter);
102 return err < 0 ? err : 0;
106 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
108 #define CMSG_COMPAT_DATA(cmsg) \
109 ((void __user *)((char __user *)(cmsg) + sizeof(struct compat_cmsghdr)))
110 #define CMSG_COMPAT_SPACE(len) \
111 (sizeof(struct compat_cmsghdr) + CMSG_COMPAT_ALIGN(len))
112 #define CMSG_COMPAT_LEN(len) \
113 (sizeof(struct compat_cmsghdr) + (len))
115 #define CMSG_COMPAT_FIRSTHDR(msg) \
116 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
117 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
118 (struct compat_cmsghdr __user *)NULL)
120 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
121 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
122 (ucmlen) <= (unsigned long) \
123 ((mhdr)->msg_controllen - \
124 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
126 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
127 struct compat_cmsghdr __user *cmsg, int cmsg_len)
129 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
130 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
133 return (struct compat_cmsghdr __user *)ptr;
136 /* There is a lot of hair here because the alignment rules (and
137 * thus placement) of cmsg headers and length are different for
138 * 32-bit apps. -DaveM
140 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
141 unsigned char *stackbuf, int stackbuf_size)
143 struct compat_cmsghdr __user *ucmsg;
144 struct cmsghdr *kcmsg, *kcmsg_base;
145 compat_size_t ucmlen;
146 __kernel_size_t kcmlen, tmp;
149 BUILD_BUG_ON(sizeof(struct compat_cmsghdr) !=
150 CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)));
153 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
154 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
155 while (ucmsg != NULL) {
156 if (get_user(ucmlen, &ucmsg->cmsg_len))
160 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
163 tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));
164 tmp = CMSG_ALIGN(tmp);
166 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
171 /* The kcmlen holds the 64-bit version of the control length.
172 * It may not be modified as we do not stick it into the kmsg
173 * until we have successfully copied over all of the data
176 if (kcmlen > stackbuf_size)
177 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
181 /* Now copy them over neatly. */
182 memset(kcmsg, 0, kcmlen);
183 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
184 while (ucmsg != NULL) {
185 if (__get_user(ucmlen, &ucmsg->cmsg_len))
187 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
189 tmp = ((ucmlen - sizeof(*ucmsg)) + sizeof(struct cmsghdr));
190 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
192 kcmsg->cmsg_len = tmp;
193 tmp = CMSG_ALIGN(tmp);
194 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
195 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
196 copy_from_user(CMSG_DATA(kcmsg),
197 CMSG_COMPAT_DATA(ucmsg),
198 (ucmlen - sizeof(*ucmsg))))
202 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
203 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
207 * check the length of messages copied in is the same as the
208 * what we get from the first loop
210 if ((char *)kcmsg - (char *)kcmsg_base != kcmlen)
213 /* Ok, looks like we made it. Hook it up and return success. */
214 kmsg->msg_control = kcmsg_base;
215 kmsg->msg_controllen = kcmlen;
221 if (kcmsg_base != (struct cmsghdr *)stackbuf)
222 sock_kfree_s(sk, kcmsg_base, kcmlen);
226 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
228 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
229 struct compat_cmsghdr cmhdr;
230 struct old_timeval32 ctv;
231 struct old_timespec32 cts[3];
234 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
235 kmsg->msg_flags |= MSG_CTRUNC;
236 return 0; /* XXX: return error? check spec. */
239 if (!COMPAT_USE_64BIT_TIME) {
240 if (level == SOL_SOCKET && type == SO_TIMESTAMP_OLD) {
241 struct __kernel_old_timeval *tv = (struct __kernel_old_timeval *)data;
242 ctv.tv_sec = tv->tv_sec;
243 ctv.tv_usec = tv->tv_usec;
247 if (level == SOL_SOCKET &&
248 (type == SO_TIMESTAMPNS_OLD || type == SO_TIMESTAMPING_OLD)) {
249 int count = type == SO_TIMESTAMPNS_OLD ? 1 : 3;
251 struct __kernel_old_timespec *ts = data;
252 for (i = 0; i < count; i++) {
253 cts[i].tv_sec = ts[i].tv_sec;
254 cts[i].tv_nsec = ts[i].tv_nsec;
257 len = sizeof(cts[0]) * count;
261 cmlen = CMSG_COMPAT_LEN(len);
262 if (kmsg->msg_controllen < cmlen) {
263 kmsg->msg_flags |= MSG_CTRUNC;
264 cmlen = kmsg->msg_controllen;
266 cmhdr.cmsg_level = level;
267 cmhdr.cmsg_type = type;
268 cmhdr.cmsg_len = cmlen;
270 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
272 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
274 cmlen = CMSG_COMPAT_SPACE(len);
275 if (kmsg->msg_controllen < cmlen)
276 cmlen = kmsg->msg_controllen;
277 kmsg->msg_control += cmlen;
278 kmsg->msg_controllen -= cmlen;
282 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
284 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
285 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
286 int fdnum = scm->fp->count;
287 struct file **fp = scm->fp->fp;
294 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
296 err = security_file_receive(fp[i]);
299 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
304 err = put_user(new_fd, cmfptr);
306 put_unused_fd(new_fd);
309 /* Bump the usage count and install the file. */
310 fd_install(new_fd, get_file(fp[i]));
314 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
315 err = put_user(SOL_SOCKET, &cm->cmsg_level);
317 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
319 err = put_user(cmlen, &cm->cmsg_len);
321 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
322 kmsg->msg_control += cmlen;
323 kmsg->msg_controllen -= cmlen;
327 kmsg->msg_flags |= MSG_CTRUNC;
330 * All of the files that fit in the message have had their
331 * usage counts incremented, so we just free the list.
336 /* allocate a 64-bit sock_fprog on the user stack for duration of syscall. */
337 struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval)
339 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
340 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
341 struct compat_sock_fprog f32;
344 if (copy_from_user(&f32, fprog32, sizeof(*fprog32)))
346 memset(&f, 0, sizeof(f));
348 f.filter = compat_ptr(f32.filter);
349 if (copy_to_user(kfprog, &f, sizeof(struct sock_fprog)))
354 EXPORT_SYMBOL_GPL(get_compat_bpf_fprog);
356 static int do_set_attach_filter(struct socket *sock, int level, int optname,
357 char __user *optval, unsigned int optlen)
359 struct sock_fprog __user *kfprog;
361 kfprog = get_compat_bpf_fprog(optval);
365 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
366 sizeof(struct sock_fprog));
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 return sock_setsockopt(sock, level, optname, optval, optlen);
379 static int __compat_sys_setsockopt(int fd, int level, int optname,
380 char __user *optval, unsigned int optlen)
385 if (optlen > INT_MAX)
388 sock = sockfd_lookup(fd, &err);
390 err = security_socket_setsockopt(sock, level, optname);
396 if (level == SOL_SOCKET)
397 err = compat_sock_setsockopt(sock, level,
398 optname, optval, optlen);
399 else if (sock->ops->compat_setsockopt)
400 err = sock->ops->compat_setsockopt(sock, level,
401 optname, optval, optlen);
403 err = sock->ops->setsockopt(sock, level,
404 optname, optval, optlen);
410 COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
411 char __user *, optval, unsigned int, optlen)
413 return __compat_sys_setsockopt(fd, level, optname, optval, optlen);
416 static int __compat_sys_getsockopt(int fd, int level, int optname,
421 struct socket *sock = sockfd_lookup(fd, &err);
424 err = security_socket_getsockopt(sock, level, optname);
430 if (level == SOL_SOCKET)
431 err = sock_getsockopt(sock, level,
432 optname, optval, optlen);
433 else if (sock->ops->compat_getsockopt)
434 err = sock->ops->compat_getsockopt(sock, level,
435 optname, optval, optlen);
437 err = sock->ops->getsockopt(sock, level,
438 optname, optval, optlen);
444 COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
445 char __user *, optval, int __user *, optlen)
447 return __compat_sys_getsockopt(fd, level, optname, optval, optlen);
450 struct compat_group_req {
452 struct __kernel_sockaddr_storage gr_group
456 struct compat_group_source_req {
458 struct __kernel_sockaddr_storage gsr_group
460 struct __kernel_sockaddr_storage gsr_source
464 struct compat_group_filter {
466 struct __kernel_sockaddr_storage gf_group
470 struct __kernel_sockaddr_storage gf_slist[1]
474 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
475 sizeof(struct __kernel_sockaddr_storage))
478 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
479 char __user *optval, unsigned int optlen,
480 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
482 char __user *koptval = optval;
483 int koptlen = optlen;
486 case MCAST_JOIN_GROUP:
487 case MCAST_LEAVE_GROUP:
489 struct compat_group_req __user *gr32 = (void __user *)optval;
490 struct group_req __user *kgr =
491 compat_alloc_user_space(sizeof(struct group_req));
494 if (!access_ok(gr32, sizeof(*gr32)) ||
495 !access_ok(kgr, sizeof(struct group_req)) ||
496 __get_user(interface, &gr32->gr_interface) ||
497 __put_user(interface, &kgr->gr_interface) ||
498 copy_in_user(&kgr->gr_group, &gr32->gr_group,
499 sizeof(kgr->gr_group)))
501 koptval = (char __user *)kgr;
502 koptlen = sizeof(struct group_req);
505 case MCAST_JOIN_SOURCE_GROUP:
506 case MCAST_LEAVE_SOURCE_GROUP:
507 case MCAST_BLOCK_SOURCE:
508 case MCAST_UNBLOCK_SOURCE:
510 struct compat_group_source_req __user *gsr32 = (void __user *)optval;
511 struct group_source_req __user *kgsr = compat_alloc_user_space(
512 sizeof(struct group_source_req));
515 if (!access_ok(gsr32, sizeof(*gsr32)) ||
517 sizeof(struct group_source_req)) ||
518 __get_user(interface, &gsr32->gsr_interface) ||
519 __put_user(interface, &kgsr->gsr_interface) ||
520 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
521 sizeof(kgsr->gsr_group)) ||
522 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
523 sizeof(kgsr->gsr_source)))
525 koptval = (char __user *)kgsr;
526 koptlen = sizeof(struct group_source_req);
531 struct compat_group_filter __user *gf32 = (void __user *)optval;
532 struct group_filter __user *kgf;
533 u32 interface, fmode, numsrc;
535 if (!access_ok(gf32, __COMPAT_GF0_SIZE) ||
536 __get_user(interface, &gf32->gf_interface) ||
537 __get_user(fmode, &gf32->gf_fmode) ||
538 __get_user(numsrc, &gf32->gf_numsrc))
540 koptlen = optlen + sizeof(struct group_filter) -
541 sizeof(struct compat_group_filter);
542 if (koptlen < GROUP_FILTER_SIZE(numsrc))
544 kgf = compat_alloc_user_space(koptlen);
545 if (!access_ok(kgf, koptlen) ||
546 __put_user(interface, &kgf->gf_interface) ||
547 __put_user(fmode, &kgf->gf_fmode) ||
548 __put_user(numsrc, &kgf->gf_numsrc) ||
549 copy_in_user(&kgf->gf_group, &gf32->gf_group,
550 sizeof(kgf->gf_group)) ||
551 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
552 numsrc * sizeof(kgf->gf_slist[0]))))
554 koptval = (char __user *)kgf;
561 return setsockopt(sock, level, optname, koptval, koptlen);
563 EXPORT_SYMBOL(compat_mc_setsockopt);
565 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
566 char __user *optval, int __user *optlen,
567 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
569 struct compat_group_filter __user *gf32 = (void __user *)optval;
570 struct group_filter __user *kgf;
572 u32 interface, fmode, numsrc;
575 if (optname != MCAST_MSFILTER)
576 return getsockopt(sock, level, optname, optval, optlen);
578 koptlen = compat_alloc_user_space(sizeof(*koptlen));
579 if (!access_ok(optlen, sizeof(*optlen)) ||
580 __get_user(ulen, optlen))
583 /* adjust len for pad */
584 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
586 if (klen < GROUP_FILTER_SIZE(0))
589 if (!access_ok(koptlen, sizeof(*koptlen)) ||
590 __put_user(klen, koptlen))
593 /* have to allow space for previous compat_alloc_user_space, too */
594 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
596 if (!access_ok(gf32, __COMPAT_GF0_SIZE) ||
597 __get_user(interface, &gf32->gf_interface) ||
598 __get_user(fmode, &gf32->gf_fmode) ||
599 __get_user(numsrc, &gf32->gf_numsrc) ||
600 __put_user(interface, &kgf->gf_interface) ||
601 __put_user(fmode, &kgf->gf_fmode) ||
602 __put_user(numsrc, &kgf->gf_numsrc) ||
603 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
606 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
610 if (!access_ok(koptlen, sizeof(*koptlen)) ||
611 __get_user(klen, koptlen))
614 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
616 if (!access_ok(optlen, sizeof(*optlen)) ||
617 __put_user(ulen, optlen))
620 if (!access_ok(kgf, klen) ||
621 !access_ok(gf32, ulen) ||
622 __get_user(interface, &kgf->gf_interface) ||
623 __get_user(fmode, &kgf->gf_fmode) ||
624 __get_user(numsrc, &kgf->gf_numsrc) ||
625 __put_user(interface, &gf32->gf_interface) ||
626 __put_user(fmode, &gf32->gf_fmode) ||
627 __put_user(numsrc, &gf32->gf_numsrc))
632 klen -= GROUP_FILTER_SIZE(0);
633 copylen = numsrc * sizeof(gf32->gf_slist[0]);
636 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
641 EXPORT_SYMBOL(compat_mc_getsockopt);
644 /* Argument list sizes for compat_sys_socketcall */
645 #define AL(x) ((x) * sizeof(u32))
646 static unsigned char nas[21] = {
647 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
648 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
649 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
654 static inline long __compat_sys_sendmsg(int fd,
655 struct compat_msghdr __user *msg,
658 return __sys_sendmsg(fd, (struct user_msghdr __user *)msg,
659 flags | MSG_CMSG_COMPAT, false);
662 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg,
665 return __compat_sys_sendmsg(fd, msg, flags);
668 static inline long __compat_sys_sendmmsg(int fd,
669 struct compat_mmsghdr __user *mmsg,
670 unsigned int vlen, unsigned int flags)
672 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
673 flags | MSG_CMSG_COMPAT, false);
676 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
677 unsigned int, vlen, unsigned int, flags)
679 return __compat_sys_sendmmsg(fd, mmsg, vlen, flags);
682 static inline long __compat_sys_recvmsg(int fd,
683 struct compat_msghdr __user *msg,
686 return __sys_recvmsg(fd, (struct user_msghdr __user *)msg,
687 flags | MSG_CMSG_COMPAT, false);
690 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg,
693 return __compat_sys_recvmsg(fd, msg, flags);
696 static inline long __compat_sys_recvfrom(int fd, void __user *buf,
697 compat_size_t len, unsigned int flags,
698 struct sockaddr __user *addr,
701 return __sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr,
705 COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
707 return __compat_sys_recvfrom(fd, buf, len, flags, NULL, NULL);
710 COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
711 unsigned int, flags, struct sockaddr __user *, addr,
712 int __user *, addrlen)
714 return __compat_sys_recvfrom(fd, buf, len, flags, addr, addrlen);
717 COMPAT_SYSCALL_DEFINE5(recvmmsg_time64, int, fd, struct compat_mmsghdr __user *, mmsg,
718 unsigned int, vlen, unsigned int, flags,
719 struct __kernel_timespec __user *, timeout)
721 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
722 flags | MSG_CMSG_COMPAT, timeout, NULL);
725 #ifdef CONFIG_COMPAT_32BIT_TIME
726 COMPAT_SYSCALL_DEFINE5(recvmmsg_time32, int, fd, struct compat_mmsghdr __user *, mmsg,
727 unsigned int, vlen, unsigned int, flags,
728 struct old_timespec32 __user *, timeout)
730 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
731 flags | MSG_CMSG_COMPAT, NULL, timeout);
735 COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
742 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
748 if (copy_from_user(a, args, len))
751 ret = audit_socketcall_compat(len / sizeof(a[0]), a);
760 ret = __sys_socket(a0, a1, a[2]);
763 ret = __sys_bind(a0, compat_ptr(a1), a[2]);
766 ret = __sys_connect(a0, compat_ptr(a1), a[2]);
769 ret = __sys_listen(a0, a1);
772 ret = __sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
774 case SYS_GETSOCKNAME:
775 ret = __sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
777 case SYS_GETPEERNAME:
778 ret = __sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
781 ret = __sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
784 ret = __sys_sendto(a0, compat_ptr(a1), a[2], a[3], NULL, 0);
787 ret = __sys_sendto(a0, compat_ptr(a1), a[2], a[3],
788 compat_ptr(a[4]), a[5]);
791 ret = __compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
795 ret = __compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
800 ret = __sys_shutdown(a0, a1);
803 ret = __compat_sys_setsockopt(a0, a1, a[2],
804 compat_ptr(a[3]), a[4]);
807 ret = __compat_sys_getsockopt(a0, a1, a[2],
812 ret = __compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
815 ret = __compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
818 ret = __compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
821 ret = __sys_recvmmsg(a0, compat_ptr(a1), a[2],
822 a[3] | MSG_CMSG_COMPAT, NULL,
826 ret = __sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);