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/export.h>
31 #include <asm/uaccess.h>
32 #include <net/compat.h>
34 int get_compat_msghdr(struct msghdr *kmsg,
35 struct compat_msghdr __user *umsg,
36 struct sockaddr __user **save_addr,
39 compat_uptr_t uaddr, uiov, tmp3;
40 compat_size_t nr_segs;
43 if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
44 __get_user(uaddr, &umsg->msg_name) ||
45 __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
46 __get_user(uiov, &umsg->msg_iov) ||
47 __get_user(nr_segs, &umsg->msg_iovlen) ||
48 __get_user(tmp3, &umsg->msg_control) ||
49 __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
50 __get_user(kmsg->msg_flags, &umsg->msg_flags))
54 kmsg->msg_namelen = 0;
56 if (kmsg->msg_namelen < 0)
59 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
60 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
61 kmsg->msg_control = compat_ptr(tmp3);
64 *save_addr = compat_ptr(uaddr);
66 if (uaddr && kmsg->msg_namelen) {
68 err = move_addr_to_kernel(compat_ptr(uaddr),
75 kmsg->msg_name = NULL;
76 kmsg->msg_namelen = 0;
79 if (nr_segs > UIO_MAXIOV)
82 kmsg->msg_iocb = NULL;
84 return compat_import_iovec(save_addr ? READ : WRITE,
85 compat_ptr(uiov), nr_segs,
86 UIO_FASTIOV, iov, &kmsg->msg_iter);
90 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
92 #define CMSG_COMPAT_DATA(cmsg) \
93 ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
94 #define CMSG_COMPAT_SPACE(len) \
95 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
96 #define CMSG_COMPAT_LEN(len) \
97 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
99 #define CMSG_COMPAT_FIRSTHDR(msg) \
100 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
101 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
102 (struct compat_cmsghdr __user *)NULL)
104 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
105 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
106 (ucmlen) <= (unsigned long) \
107 ((mhdr)->msg_controllen - \
108 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
110 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
111 struct compat_cmsghdr __user *cmsg, int cmsg_len)
113 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
114 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
117 return (struct compat_cmsghdr __user *)ptr;
120 /* There is a lot of hair here because the alignment rules (and
121 * thus placement) of cmsg headers and length are different for
122 * 32-bit apps. -DaveM
124 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
125 unsigned char *stackbuf, int stackbuf_size)
127 struct compat_cmsghdr __user *ucmsg;
128 struct cmsghdr *kcmsg, *kcmsg_base;
129 compat_size_t ucmlen;
130 __kernel_size_t kcmlen, tmp;
134 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
135 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
136 while (ucmsg != NULL) {
137 if (get_user(ucmlen, &ucmsg->cmsg_len))
141 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
144 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
145 CMSG_ALIGN(sizeof(struct cmsghdr)));
146 tmp = CMSG_ALIGN(tmp);
148 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
153 /* The kcmlen holds the 64-bit version of the control length.
154 * It may not be modified as we do not stick it into the kmsg
155 * until we have successfully copied over all of the data
158 if (kcmlen > stackbuf_size)
159 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
163 /* Now copy them over neatly. */
164 memset(kcmsg, 0, kcmlen);
165 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
166 while (ucmsg != NULL) {
167 if (__get_user(ucmlen, &ucmsg->cmsg_len))
169 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
171 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
172 CMSG_ALIGN(sizeof(struct cmsghdr)));
173 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
175 kcmsg->cmsg_len = tmp;
176 tmp = CMSG_ALIGN(tmp);
177 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
178 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
179 copy_from_user(CMSG_DATA(kcmsg),
180 CMSG_COMPAT_DATA(ucmsg),
181 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
185 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
186 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
189 /* Ok, looks like we made it. Hook it up and return success. */
190 kmsg->msg_control = kcmsg_base;
191 kmsg->msg_controllen = kcmlen;
197 if (kcmsg_base != (struct cmsghdr *)stackbuf)
198 sock_kfree_s(sk, kcmsg_base, kcmlen);
202 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
204 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
205 struct compat_cmsghdr cmhdr;
206 struct compat_timeval ctv;
207 struct compat_timespec cts[3];
210 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
211 kmsg->msg_flags |= MSG_CTRUNC;
212 return 0; /* XXX: return error? check spec. */
215 if (!COMPAT_USE_64BIT_TIME) {
216 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
217 struct timeval *tv = (struct timeval *)data;
218 ctv.tv_sec = tv->tv_sec;
219 ctv.tv_usec = tv->tv_usec;
223 if (level == SOL_SOCKET &&
224 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
225 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
227 struct timespec *ts = (struct timespec *)data;
228 for (i = 0; i < count; i++) {
229 cts[i].tv_sec = ts[i].tv_sec;
230 cts[i].tv_nsec = ts[i].tv_nsec;
233 len = sizeof(cts[0]) * count;
237 cmlen = CMSG_COMPAT_LEN(len);
238 if (kmsg->msg_controllen < cmlen) {
239 kmsg->msg_flags |= MSG_CTRUNC;
240 cmlen = kmsg->msg_controllen;
242 cmhdr.cmsg_level = level;
243 cmhdr.cmsg_type = type;
244 cmhdr.cmsg_len = cmlen;
246 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
248 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
250 cmlen = CMSG_COMPAT_SPACE(len);
251 if (kmsg->msg_controllen < cmlen)
252 cmlen = kmsg->msg_controllen;
253 kmsg->msg_control += cmlen;
254 kmsg->msg_controllen -= cmlen;
258 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
260 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
261 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
262 int fdnum = scm->fp->count;
263 struct file **fp = scm->fp->fp;
270 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
272 err = security_file_receive(fp[i]);
275 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
280 err = put_user(new_fd, cmfptr);
282 put_unused_fd(new_fd);
285 /* Bump the usage count and install the file. */
286 fd_install(new_fd, get_file(fp[i]));
290 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
291 err = put_user(SOL_SOCKET, &cm->cmsg_level);
293 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
295 err = put_user(cmlen, &cm->cmsg_len);
297 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
298 kmsg->msg_control += cmlen;
299 kmsg->msg_controllen -= cmlen;
303 kmsg->msg_flags |= MSG_CTRUNC;
306 * All of the files that fit in the message have had their
307 * usage counts incremented, so we just free the list.
312 static int do_set_attach_filter(struct socket *sock, int level, int optname,
313 char __user *optval, unsigned int optlen)
315 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
316 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
320 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
321 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
322 __get_user(len, &fprog32->len) ||
323 __get_user(ptr, &fprog32->filter) ||
324 __put_user(len, &kfprog->len) ||
325 __put_user(compat_ptr(ptr), &kfprog->filter))
328 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
329 sizeof(struct sock_fprog));
332 static int do_set_sock_timeout(struct socket *sock, int level,
333 int optname, char __user *optval, unsigned int optlen)
335 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
336 struct timeval ktime;
340 if (optlen < sizeof(*up))
342 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
343 __get_user(ktime.tv_sec, &up->tv_sec) ||
344 __get_user(ktime.tv_usec, &up->tv_usec))
348 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
354 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
355 char __user *optval, unsigned int optlen)
357 if (optname == SO_ATTACH_FILTER)
358 return do_set_attach_filter(sock, level, optname,
360 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
361 return do_set_sock_timeout(sock, level, optname, optval, optlen);
363 return sock_setsockopt(sock, level, optname, optval, optlen);
366 COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
367 char __user *, optval, unsigned int, optlen)
370 struct socket *sock = sockfd_lookup(fd, &err);
373 err = security_socket_setsockopt(sock, level, optname);
379 if (level == SOL_SOCKET)
380 err = compat_sock_setsockopt(sock, level,
381 optname, optval, optlen);
382 else if (sock->ops->compat_setsockopt)
383 err = sock->ops->compat_setsockopt(sock, level,
384 optname, optval, optlen);
386 err = sock->ops->setsockopt(sock, level,
387 optname, optval, optlen);
393 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
394 char __user *optval, int __user *optlen)
396 struct compat_timeval __user *up;
397 struct timeval ktime;
401 up = (struct compat_timeval __user *) optval;
402 if (get_user(len, optlen))
404 if (len < sizeof(*up))
409 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
413 if (put_user(sizeof(*up), optlen) ||
414 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
415 __put_user(ktime.tv_sec, &up->tv_sec) ||
416 __put_user(ktime.tv_usec, &up->tv_usec))
422 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
423 char __user *optval, int __user *optlen)
425 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
426 return do_get_sock_timeout(sock, level, optname, optval, optlen);
427 return sock_getsockopt(sock, level, optname, optval, optlen);
430 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
432 struct compat_timeval __user *ctv;
436 if (COMPAT_USE_64BIT_TIME)
437 return sock_get_timestamp(sk, userstamp);
439 ctv = (struct compat_timeval __user *) userstamp;
441 if (!sock_flag(sk, SOCK_TIMESTAMP))
442 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
443 tv = ktime_to_timeval(sk->sk_stamp);
446 if (tv.tv_sec == 0) {
447 sk->sk_stamp = ktime_get_real();
448 tv = ktime_to_timeval(sk->sk_stamp);
451 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
452 put_user(tv.tv_usec, &ctv->tv_usec))
456 EXPORT_SYMBOL(compat_sock_get_timestamp);
458 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
460 struct compat_timespec __user *ctv;
464 if (COMPAT_USE_64BIT_TIME)
465 return sock_get_timestampns (sk, userstamp);
467 ctv = (struct compat_timespec __user *) userstamp;
469 if (!sock_flag(sk, SOCK_TIMESTAMP))
470 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
471 ts = ktime_to_timespec(sk->sk_stamp);
474 if (ts.tv_sec == 0) {
475 sk->sk_stamp = ktime_get_real();
476 ts = ktime_to_timespec(sk->sk_stamp);
479 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
480 put_user(ts.tv_nsec, &ctv->tv_nsec))
484 EXPORT_SYMBOL(compat_sock_get_timestampns);
486 COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
487 char __user *, optval, int __user *, optlen)
490 struct socket *sock = sockfd_lookup(fd, &err);
493 err = security_socket_getsockopt(sock, level, optname);
499 if (level == SOL_SOCKET)
500 err = compat_sock_getsockopt(sock, level,
501 optname, optval, optlen);
502 else if (sock->ops->compat_getsockopt)
503 err = sock->ops->compat_getsockopt(sock, level,
504 optname, optval, optlen);
506 err = sock->ops->getsockopt(sock, level,
507 optname, optval, optlen);
513 struct compat_group_req {
515 struct __kernel_sockaddr_storage gr_group
519 struct compat_group_source_req {
521 struct __kernel_sockaddr_storage gsr_group
523 struct __kernel_sockaddr_storage gsr_source
527 struct compat_group_filter {
529 struct __kernel_sockaddr_storage gf_group
533 struct __kernel_sockaddr_storage gf_slist[1]
537 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
538 sizeof(struct __kernel_sockaddr_storage))
541 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
542 char __user *optval, unsigned int optlen,
543 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
545 char __user *koptval = optval;
546 int koptlen = optlen;
549 case MCAST_JOIN_GROUP:
550 case MCAST_LEAVE_GROUP:
552 struct compat_group_req __user *gr32 = (void *)optval;
553 struct group_req __user *kgr =
554 compat_alloc_user_space(sizeof(struct group_req));
557 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
558 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
559 __get_user(interface, &gr32->gr_interface) ||
560 __put_user(interface, &kgr->gr_interface) ||
561 copy_in_user(&kgr->gr_group, &gr32->gr_group,
562 sizeof(kgr->gr_group)))
564 koptval = (char __user *)kgr;
565 koptlen = sizeof(struct group_req);
568 case MCAST_JOIN_SOURCE_GROUP:
569 case MCAST_LEAVE_SOURCE_GROUP:
570 case MCAST_BLOCK_SOURCE:
571 case MCAST_UNBLOCK_SOURCE:
573 struct compat_group_source_req __user *gsr32 = (void *)optval;
574 struct group_source_req __user *kgsr = compat_alloc_user_space(
575 sizeof(struct group_source_req));
578 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
579 !access_ok(VERIFY_WRITE, kgsr,
580 sizeof(struct group_source_req)) ||
581 __get_user(interface, &gsr32->gsr_interface) ||
582 __put_user(interface, &kgsr->gsr_interface) ||
583 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
584 sizeof(kgsr->gsr_group)) ||
585 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
586 sizeof(kgsr->gsr_source)))
588 koptval = (char __user *)kgsr;
589 koptlen = sizeof(struct group_source_req);
594 struct compat_group_filter __user *gf32 = (void *)optval;
595 struct group_filter __user *kgf;
596 u32 interface, fmode, numsrc;
598 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
599 __get_user(interface, &gf32->gf_interface) ||
600 __get_user(fmode, &gf32->gf_fmode) ||
601 __get_user(numsrc, &gf32->gf_numsrc))
603 koptlen = optlen + sizeof(struct group_filter) -
604 sizeof(struct compat_group_filter);
605 if (koptlen < GROUP_FILTER_SIZE(numsrc))
607 kgf = compat_alloc_user_space(koptlen);
608 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
609 __put_user(interface, &kgf->gf_interface) ||
610 __put_user(fmode, &kgf->gf_fmode) ||
611 __put_user(numsrc, &kgf->gf_numsrc) ||
612 copy_in_user(&kgf->gf_group, &gf32->gf_group,
613 sizeof(kgf->gf_group)) ||
614 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
615 numsrc * sizeof(kgf->gf_slist[0]))))
617 koptval = (char __user *)kgf;
624 return setsockopt(sock, level, optname, koptval, koptlen);
626 EXPORT_SYMBOL(compat_mc_setsockopt);
628 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
629 char __user *optval, int __user *optlen,
630 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
632 struct compat_group_filter __user *gf32 = (void *)optval;
633 struct group_filter __user *kgf;
635 u32 interface, fmode, numsrc;
638 if (optname != MCAST_MSFILTER)
639 return getsockopt(sock, level, optname, optval, optlen);
641 koptlen = compat_alloc_user_space(sizeof(*koptlen));
642 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
643 __get_user(ulen, optlen))
646 /* adjust len for pad */
647 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
649 if (klen < GROUP_FILTER_SIZE(0))
652 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
653 __put_user(klen, koptlen))
656 /* have to allow space for previous compat_alloc_user_space, too */
657 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
659 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
660 __get_user(interface, &gf32->gf_interface) ||
661 __get_user(fmode, &gf32->gf_fmode) ||
662 __get_user(numsrc, &gf32->gf_numsrc) ||
663 __put_user(interface, &kgf->gf_interface) ||
664 __put_user(fmode, &kgf->gf_fmode) ||
665 __put_user(numsrc, &kgf->gf_numsrc) ||
666 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
669 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
673 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
674 __get_user(klen, koptlen))
677 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
679 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
680 __put_user(ulen, optlen))
683 if (!access_ok(VERIFY_READ, kgf, klen) ||
684 !access_ok(VERIFY_WRITE, gf32, ulen) ||
685 __get_user(interface, &kgf->gf_interface) ||
686 __get_user(fmode, &kgf->gf_fmode) ||
687 __get_user(numsrc, &kgf->gf_numsrc) ||
688 __put_user(interface, &gf32->gf_interface) ||
689 __put_user(fmode, &gf32->gf_fmode) ||
690 __put_user(numsrc, &gf32->gf_numsrc))
695 klen -= GROUP_FILTER_SIZE(0);
696 copylen = numsrc * sizeof(gf32->gf_slist[0]);
699 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
704 EXPORT_SYMBOL(compat_mc_getsockopt);
707 /* Argument list sizes for compat_sys_socketcall */
708 #define AL(x) ((x) * sizeof(u32))
709 static unsigned char nas[21] = {
710 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
711 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
712 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
717 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
719 return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
722 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
723 unsigned int, vlen, unsigned int, flags)
725 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
726 flags | MSG_CMSG_COMPAT);
729 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
731 return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
734 COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
736 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
739 COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
740 unsigned int, flags, struct sockaddr __user *, addr,
741 int __user *, addrlen)
743 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
746 COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
747 unsigned int, vlen, unsigned int, flags,
748 struct compat_timespec __user *, timeout)
751 struct timespec ktspec;
754 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
755 flags | MSG_CMSG_COMPAT, NULL);
757 if (compat_get_timespec(&ktspec, timeout))
760 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
761 flags | MSG_CMSG_COMPAT, &ktspec);
762 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
768 COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
774 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
776 if (copy_from_user(a, args, nas[call]))
783 ret = sys_socket(a0, a1, a[2]);
786 ret = sys_bind(a0, compat_ptr(a1), a[2]);
789 ret = sys_connect(a0, compat_ptr(a1), a[2]);
792 ret = sys_listen(a0, a1);
795 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
797 case SYS_GETSOCKNAME:
798 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
800 case SYS_GETPEERNAME:
801 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
804 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
807 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
810 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
813 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
816 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
817 compat_ptr(a[4]), compat_ptr(a[5]));
820 ret = sys_shutdown(a0, a1);
823 ret = compat_sys_setsockopt(a0, a1, a[2],
824 compat_ptr(a[3]), a[4]);
827 ret = compat_sys_getsockopt(a0, a1, a[2],
828 compat_ptr(a[3]), compat_ptr(a[4]));
831 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
834 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
837 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
840 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
844 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);