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 <asm/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) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
95 #define CMSG_COMPAT_SPACE(len) \
96 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
97 #define CMSG_COMPAT_LEN(len) \
98 (CMSG_COMPAT_ALIGN(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;
135 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
136 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
137 while (ucmsg != NULL) {
138 if (get_user(ucmlen, &ucmsg->cmsg_len))
142 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
145 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
146 CMSG_ALIGN(sizeof(struct cmsghdr)));
147 tmp = CMSG_ALIGN(tmp);
149 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
154 /* The kcmlen holds the 64-bit version of the control length.
155 * It may not be modified as we do not stick it into the kmsg
156 * until we have successfully copied over all of the data
159 if (kcmlen > stackbuf_size)
160 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
164 /* Now copy them over neatly. */
165 memset(kcmsg, 0, kcmlen);
166 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
167 while (ucmsg != NULL) {
168 if (__get_user(ucmlen, &ucmsg->cmsg_len))
170 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
172 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
173 CMSG_ALIGN(sizeof(struct cmsghdr)));
174 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
176 kcmsg->cmsg_len = tmp;
177 tmp = CMSG_ALIGN(tmp);
178 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
179 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
180 copy_from_user(CMSG_DATA(kcmsg),
181 CMSG_COMPAT_DATA(ucmsg),
182 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
186 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
187 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
190 /* Ok, looks like we made it. Hook it up and return success. */
191 kmsg->msg_control = kcmsg_base;
192 kmsg->msg_controllen = kcmlen;
198 if (kcmsg_base != (struct cmsghdr *)stackbuf)
199 sock_kfree_s(sk, kcmsg_base, kcmlen);
203 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
205 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
206 struct compat_cmsghdr cmhdr;
207 struct compat_timeval ctv;
208 struct compat_timespec cts[3];
211 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
212 kmsg->msg_flags |= MSG_CTRUNC;
213 return 0; /* XXX: return error? check spec. */
216 if (!COMPAT_USE_64BIT_TIME) {
217 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
218 struct timeval *tv = (struct timeval *)data;
219 ctv.tv_sec = tv->tv_sec;
220 ctv.tv_usec = tv->tv_usec;
224 if (level == SOL_SOCKET &&
225 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
226 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
228 struct timespec *ts = (struct timespec *)data;
229 for (i = 0; i < count; i++) {
230 cts[i].tv_sec = ts[i].tv_sec;
231 cts[i].tv_nsec = ts[i].tv_nsec;
234 len = sizeof(cts[0]) * count;
238 cmlen = CMSG_COMPAT_LEN(len);
239 if (kmsg->msg_controllen < cmlen) {
240 kmsg->msg_flags |= MSG_CTRUNC;
241 cmlen = kmsg->msg_controllen;
243 cmhdr.cmsg_level = level;
244 cmhdr.cmsg_type = type;
245 cmhdr.cmsg_len = cmlen;
247 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
249 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
251 cmlen = CMSG_COMPAT_SPACE(len);
252 if (kmsg->msg_controllen < cmlen)
253 cmlen = kmsg->msg_controllen;
254 kmsg->msg_control += cmlen;
255 kmsg->msg_controllen -= cmlen;
259 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
261 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
262 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
263 int fdnum = scm->fp->count;
264 struct file **fp = scm->fp->fp;
271 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
273 err = security_file_receive(fp[i]);
276 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
281 err = put_user(new_fd, cmfptr);
283 put_unused_fd(new_fd);
286 /* Bump the usage count and install the file. */
287 fd_install(new_fd, get_file(fp[i]));
291 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
292 err = put_user(SOL_SOCKET, &cm->cmsg_level);
294 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
296 err = put_user(cmlen, &cm->cmsg_len);
298 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
299 kmsg->msg_control += cmlen;
300 kmsg->msg_controllen -= cmlen;
304 kmsg->msg_flags |= MSG_CTRUNC;
307 * All of the files that fit in the message have had their
308 * usage counts incremented, so we just free the list.
313 static int do_set_attach_filter(struct socket *sock, int level, int optname,
314 char __user *optval, unsigned int optlen)
316 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
317 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
321 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
322 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
323 __get_user(len, &fprog32->len) ||
324 __get_user(ptr, &fprog32->filter) ||
325 __put_user(len, &kfprog->len) ||
326 __put_user(compat_ptr(ptr), &kfprog->filter))
329 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
330 sizeof(struct sock_fprog));
333 static int do_set_sock_timeout(struct socket *sock, int level,
334 int optname, char __user *optval, unsigned int optlen)
336 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
337 struct timeval ktime;
341 if (optlen < sizeof(*up))
343 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
344 __get_user(ktime.tv_sec, &up->tv_sec) ||
345 __get_user(ktime.tv_usec, &up->tv_usec))
349 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
355 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
356 char __user *optval, unsigned int optlen)
358 if (optname == SO_ATTACH_FILTER)
359 return do_set_attach_filter(sock, level, optname,
361 if (!COMPAT_USE_64BIT_TIME &&
362 (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
363 return do_set_sock_timeout(sock, level, optname, optval, optlen);
365 return sock_setsockopt(sock, level, optname, optval, optlen);
368 COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
369 char __user *, optval, unsigned int, optlen)
372 struct socket *sock = sockfd_lookup(fd, &err);
375 err = security_socket_setsockopt(sock, level, optname);
381 if (level == SOL_SOCKET)
382 err = compat_sock_setsockopt(sock, level,
383 optname, optval, optlen);
384 else if (sock->ops->compat_setsockopt)
385 err = sock->ops->compat_setsockopt(sock, level,
386 optname, optval, optlen);
388 err = sock->ops->setsockopt(sock, level,
389 optname, optval, optlen);
395 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
396 char __user *optval, int __user *optlen)
398 struct compat_timeval __user *up;
399 struct timeval ktime;
403 up = (struct compat_timeval __user *) optval;
404 if (get_user(len, optlen))
406 if (len < sizeof(*up))
411 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
415 if (put_user(sizeof(*up), optlen) ||
416 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
417 __put_user(ktime.tv_sec, &up->tv_sec) ||
418 __put_user(ktime.tv_usec, &up->tv_usec))
424 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
425 char __user *optval, int __user *optlen)
427 if (!COMPAT_USE_64BIT_TIME &&
428 (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
429 return do_get_sock_timeout(sock, level, optname, optval, optlen);
430 return sock_getsockopt(sock, level, optname, optval, optlen);
433 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
435 struct compat_timeval __user *ctv;
439 if (COMPAT_USE_64BIT_TIME)
440 return sock_get_timestamp(sk, userstamp);
442 ctv = (struct compat_timeval __user *) userstamp;
444 if (!sock_flag(sk, SOCK_TIMESTAMP))
445 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
446 tv = ktime_to_timeval(sk->sk_stamp);
449 if (tv.tv_sec == 0) {
450 sk->sk_stamp = ktime_get_real();
451 tv = ktime_to_timeval(sk->sk_stamp);
454 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
455 put_user(tv.tv_usec, &ctv->tv_usec))
459 EXPORT_SYMBOL(compat_sock_get_timestamp);
461 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
463 struct compat_timespec __user *ctv;
467 if (COMPAT_USE_64BIT_TIME)
468 return sock_get_timestampns (sk, userstamp);
470 ctv = (struct compat_timespec __user *) userstamp;
472 if (!sock_flag(sk, SOCK_TIMESTAMP))
473 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
474 ts = ktime_to_timespec(sk->sk_stamp);
477 if (ts.tv_sec == 0) {
478 sk->sk_stamp = ktime_get_real();
479 ts = ktime_to_timespec(sk->sk_stamp);
482 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
483 put_user(ts.tv_nsec, &ctv->tv_nsec))
487 EXPORT_SYMBOL(compat_sock_get_timestampns);
489 COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
490 char __user *, optval, int __user *, optlen)
493 struct socket *sock = sockfd_lookup(fd, &err);
496 err = security_socket_getsockopt(sock, level, optname);
502 if (level == SOL_SOCKET)
503 err = compat_sock_getsockopt(sock, level,
504 optname, optval, optlen);
505 else if (sock->ops->compat_getsockopt)
506 err = sock->ops->compat_getsockopt(sock, level,
507 optname, optval, optlen);
509 err = sock->ops->getsockopt(sock, level,
510 optname, optval, optlen);
516 struct compat_group_req {
518 struct __kernel_sockaddr_storage gr_group
522 struct compat_group_source_req {
524 struct __kernel_sockaddr_storage gsr_group
526 struct __kernel_sockaddr_storage gsr_source
530 struct compat_group_filter {
532 struct __kernel_sockaddr_storage gf_group
536 struct __kernel_sockaddr_storage gf_slist[1]
540 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
541 sizeof(struct __kernel_sockaddr_storage))
544 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
545 char __user *optval, unsigned int optlen,
546 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
548 char __user *koptval = optval;
549 int koptlen = optlen;
552 case MCAST_JOIN_GROUP:
553 case MCAST_LEAVE_GROUP:
555 struct compat_group_req __user *gr32 = (void *)optval;
556 struct group_req __user *kgr =
557 compat_alloc_user_space(sizeof(struct group_req));
560 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
561 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
562 __get_user(interface, &gr32->gr_interface) ||
563 __put_user(interface, &kgr->gr_interface) ||
564 copy_in_user(&kgr->gr_group, &gr32->gr_group,
565 sizeof(kgr->gr_group)))
567 koptval = (char __user *)kgr;
568 koptlen = sizeof(struct group_req);
571 case MCAST_JOIN_SOURCE_GROUP:
572 case MCAST_LEAVE_SOURCE_GROUP:
573 case MCAST_BLOCK_SOURCE:
574 case MCAST_UNBLOCK_SOURCE:
576 struct compat_group_source_req __user *gsr32 = (void *)optval;
577 struct group_source_req __user *kgsr = compat_alloc_user_space(
578 sizeof(struct group_source_req));
581 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
582 !access_ok(VERIFY_WRITE, kgsr,
583 sizeof(struct group_source_req)) ||
584 __get_user(interface, &gsr32->gsr_interface) ||
585 __put_user(interface, &kgsr->gsr_interface) ||
586 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
587 sizeof(kgsr->gsr_group)) ||
588 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
589 sizeof(kgsr->gsr_source)))
591 koptval = (char __user *)kgsr;
592 koptlen = sizeof(struct group_source_req);
597 struct compat_group_filter __user *gf32 = (void *)optval;
598 struct group_filter __user *kgf;
599 u32 interface, fmode, numsrc;
601 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
602 __get_user(interface, &gf32->gf_interface) ||
603 __get_user(fmode, &gf32->gf_fmode) ||
604 __get_user(numsrc, &gf32->gf_numsrc))
606 koptlen = optlen + sizeof(struct group_filter) -
607 sizeof(struct compat_group_filter);
608 if (koptlen < GROUP_FILTER_SIZE(numsrc))
610 kgf = compat_alloc_user_space(koptlen);
611 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
612 __put_user(interface, &kgf->gf_interface) ||
613 __put_user(fmode, &kgf->gf_fmode) ||
614 __put_user(numsrc, &kgf->gf_numsrc) ||
615 copy_in_user(&kgf->gf_group, &gf32->gf_group,
616 sizeof(kgf->gf_group)) ||
617 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
618 numsrc * sizeof(kgf->gf_slist[0]))))
620 koptval = (char __user *)kgf;
627 return setsockopt(sock, level, optname, koptval, koptlen);
629 EXPORT_SYMBOL(compat_mc_setsockopt);
631 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
632 char __user *optval, int __user *optlen,
633 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
635 struct compat_group_filter __user *gf32 = (void *)optval;
636 struct group_filter __user *kgf;
638 u32 interface, fmode, numsrc;
641 if (optname != MCAST_MSFILTER)
642 return getsockopt(sock, level, optname, optval, optlen);
644 koptlen = compat_alloc_user_space(sizeof(*koptlen));
645 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
646 __get_user(ulen, optlen))
649 /* adjust len for pad */
650 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
652 if (klen < GROUP_FILTER_SIZE(0))
655 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
656 __put_user(klen, koptlen))
659 /* have to allow space for previous compat_alloc_user_space, too */
660 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
662 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
663 __get_user(interface, &gf32->gf_interface) ||
664 __get_user(fmode, &gf32->gf_fmode) ||
665 __get_user(numsrc, &gf32->gf_numsrc) ||
666 __put_user(interface, &kgf->gf_interface) ||
667 __put_user(fmode, &kgf->gf_fmode) ||
668 __put_user(numsrc, &kgf->gf_numsrc) ||
669 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
672 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
676 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
677 __get_user(klen, koptlen))
680 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
682 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
683 __put_user(ulen, optlen))
686 if (!access_ok(VERIFY_READ, kgf, klen) ||
687 !access_ok(VERIFY_WRITE, gf32, ulen) ||
688 __get_user(interface, &kgf->gf_interface) ||
689 __get_user(fmode, &kgf->gf_fmode) ||
690 __get_user(numsrc, &kgf->gf_numsrc) ||
691 __put_user(interface, &gf32->gf_interface) ||
692 __put_user(fmode, &gf32->gf_fmode) ||
693 __put_user(numsrc, &gf32->gf_numsrc))
698 klen -= GROUP_FILTER_SIZE(0);
699 copylen = numsrc * sizeof(gf32->gf_slist[0]);
702 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
707 EXPORT_SYMBOL(compat_mc_getsockopt);
710 /* Argument list sizes for compat_sys_socketcall */
711 #define AL(x) ((x) * sizeof(u32))
712 static unsigned char nas[21] = {
713 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
714 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
715 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
720 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
722 return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
725 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
726 unsigned int, vlen, unsigned int, flags)
728 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
729 flags | MSG_CMSG_COMPAT);
732 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
734 return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
737 COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
739 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
742 COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
743 unsigned int, flags, struct sockaddr __user *, addr,
744 int __user *, addrlen)
746 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
749 COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
750 unsigned int, vlen, unsigned int, flags,
751 struct compat_timespec __user *, timeout)
754 struct timespec ktspec;
757 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
758 flags | MSG_CMSG_COMPAT, NULL);
760 if (compat_get_timespec(&ktspec, timeout))
763 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
764 flags | MSG_CMSG_COMPAT, &ktspec);
765 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
771 COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
778 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
784 if (copy_from_user(a, args, len))
787 ret = audit_socketcall_compat(len / sizeof(a[0]), a);
796 ret = sys_socket(a0, a1, a[2]);
799 ret = sys_bind(a0, compat_ptr(a1), a[2]);
802 ret = sys_connect(a0, compat_ptr(a1), a[2]);
805 ret = sys_listen(a0, a1);
808 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
810 case SYS_GETSOCKNAME:
811 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
813 case SYS_GETPEERNAME:
814 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
817 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
820 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
823 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
826 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
829 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
830 compat_ptr(a[4]), compat_ptr(a[5]));
833 ret = sys_shutdown(a0, a1);
836 ret = compat_sys_setsockopt(a0, a1, a[2],
837 compat_ptr(a[3]), a[4]);
840 ret = compat_sys_getsockopt(a0, a1, a[2],
841 compat_ptr(a[3]), compat_ptr(a[4]));
844 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
847 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
850 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
853 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
857 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);