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 ssize_t 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 err = compat_rw_copy_check_uvector(save_addr ? READ : WRITE,
85 compat_ptr(uiov), nr_segs,
86 UIO_FASTIOV, *iov, iov);
88 iov_iter_init(&kmsg->msg_iter, save_addr ? READ : WRITE,
94 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
96 #define CMSG_COMPAT_DATA(cmsg) \
97 ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
98 #define CMSG_COMPAT_SPACE(len) \
99 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
100 #define CMSG_COMPAT_LEN(len) \
101 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
103 #define CMSG_COMPAT_FIRSTHDR(msg) \
104 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
105 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
106 (struct compat_cmsghdr __user *)NULL)
108 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
109 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
110 (ucmlen) <= (unsigned long) \
111 ((mhdr)->msg_controllen - \
112 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
114 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
115 struct compat_cmsghdr __user *cmsg, int cmsg_len)
117 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
118 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
121 return (struct compat_cmsghdr __user *)ptr;
124 /* There is a lot of hair here because the alignment rules (and
125 * thus placement) of cmsg headers and length are different for
126 * 32-bit apps. -DaveM
128 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
129 unsigned char *stackbuf, int stackbuf_size)
131 struct compat_cmsghdr __user *ucmsg;
132 struct cmsghdr *kcmsg, *kcmsg_base;
133 compat_size_t ucmlen;
134 __kernel_size_t kcmlen, tmp;
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 - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
149 CMSG_ALIGN(sizeof(struct cmsghdr)));
150 tmp = CMSG_ALIGN(tmp);
152 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
157 /* The kcmlen holds the 64-bit version of the control length.
158 * It may not be modified as we do not stick it into the kmsg
159 * until we have successfully copied over all of the data
162 if (kcmlen > stackbuf_size)
163 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
167 /* Now copy them over neatly. */
168 memset(kcmsg, 0, kcmlen);
169 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
170 while (ucmsg != NULL) {
171 if (__get_user(ucmlen, &ucmsg->cmsg_len))
173 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
175 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
176 CMSG_ALIGN(sizeof(struct cmsghdr)));
177 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
179 kcmsg->cmsg_len = tmp;
180 tmp = CMSG_ALIGN(tmp);
181 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
182 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
183 copy_from_user(CMSG_DATA(kcmsg),
184 CMSG_COMPAT_DATA(ucmsg),
185 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
189 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
190 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
193 /* Ok, looks like we made it. Hook it up and return success. */
194 kmsg->msg_control = kcmsg_base;
195 kmsg->msg_controllen = kcmlen;
201 if (kcmsg_base != (struct cmsghdr *)stackbuf)
202 sock_kfree_s(sk, kcmsg_base, kcmlen);
206 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
208 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
209 struct compat_cmsghdr cmhdr;
210 struct compat_timeval ctv;
211 struct compat_timespec cts[3];
214 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
215 kmsg->msg_flags |= MSG_CTRUNC;
216 return 0; /* XXX: return error? check spec. */
219 if (!COMPAT_USE_64BIT_TIME) {
220 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
221 struct timeval *tv = (struct timeval *)data;
222 ctv.tv_sec = tv->tv_sec;
223 ctv.tv_usec = tv->tv_usec;
227 if (level == SOL_SOCKET &&
228 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
229 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
231 struct timespec *ts = (struct timespec *)data;
232 for (i = 0; i < count; i++) {
233 cts[i].tv_sec = ts[i].tv_sec;
234 cts[i].tv_nsec = ts[i].tv_nsec;
237 len = sizeof(cts[0]) * count;
241 cmlen = CMSG_COMPAT_LEN(len);
242 if (kmsg->msg_controllen < cmlen) {
243 kmsg->msg_flags |= MSG_CTRUNC;
244 cmlen = kmsg->msg_controllen;
246 cmhdr.cmsg_level = level;
247 cmhdr.cmsg_type = type;
248 cmhdr.cmsg_len = cmlen;
250 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
252 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
254 cmlen = CMSG_COMPAT_SPACE(len);
255 if (kmsg->msg_controllen < cmlen)
256 cmlen = kmsg->msg_controllen;
257 kmsg->msg_control += cmlen;
258 kmsg->msg_controllen -= cmlen;
262 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
264 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
265 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
266 int fdnum = scm->fp->count;
267 struct file **fp = scm->fp->fp;
274 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
276 err = security_file_receive(fp[i]);
279 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
284 err = put_user(new_fd, cmfptr);
286 put_unused_fd(new_fd);
289 /* Bump the usage count and install the file. */
290 fd_install(new_fd, get_file(fp[i]));
294 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
295 err = put_user(SOL_SOCKET, &cm->cmsg_level);
297 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
299 err = put_user(cmlen, &cm->cmsg_len);
301 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
302 kmsg->msg_control += cmlen;
303 kmsg->msg_controllen -= cmlen;
307 kmsg->msg_flags |= MSG_CTRUNC;
310 * All of the files that fit in the message have had their
311 * usage counts incremented, so we just free the list.
316 static int do_set_attach_filter(struct socket *sock, int level, int optname,
317 char __user *optval, unsigned int optlen)
319 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
320 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
324 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
325 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
326 __get_user(len, &fprog32->len) ||
327 __get_user(ptr, &fprog32->filter) ||
328 __put_user(len, &kfprog->len) ||
329 __put_user(compat_ptr(ptr), &kfprog->filter))
332 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
333 sizeof(struct sock_fprog));
336 static int do_set_sock_timeout(struct socket *sock, int level,
337 int optname, char __user *optval, unsigned int optlen)
339 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
340 struct timeval ktime;
344 if (optlen < sizeof(*up))
346 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
347 __get_user(ktime.tv_sec, &up->tv_sec) ||
348 __get_user(ktime.tv_usec, &up->tv_usec))
352 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
358 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
359 char __user *optval, unsigned int optlen)
361 if (optname == SO_ATTACH_FILTER)
362 return do_set_attach_filter(sock, level, optname,
364 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
365 return do_set_sock_timeout(sock, level, optname, optval, optlen);
367 return sock_setsockopt(sock, level, optname, optval, optlen);
370 COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
371 char __user *, optval, unsigned int, optlen)
374 struct socket *sock = sockfd_lookup(fd, &err);
377 err = security_socket_setsockopt(sock, level, optname);
383 if (level == SOL_SOCKET)
384 err = compat_sock_setsockopt(sock, level,
385 optname, optval, optlen);
386 else if (sock->ops->compat_setsockopt)
387 err = sock->ops->compat_setsockopt(sock, level,
388 optname, optval, optlen);
390 err = sock->ops->setsockopt(sock, level,
391 optname, optval, optlen);
397 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
398 char __user *optval, int __user *optlen)
400 struct compat_timeval __user *up;
401 struct timeval ktime;
405 up = (struct compat_timeval __user *) optval;
406 if (get_user(len, optlen))
408 if (len < sizeof(*up))
413 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
417 if (put_user(sizeof(*up), optlen) ||
418 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
419 __put_user(ktime.tv_sec, &up->tv_sec) ||
420 __put_user(ktime.tv_usec, &up->tv_usec))
426 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
427 char __user *optval, int __user *optlen)
429 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
430 return do_get_sock_timeout(sock, level, optname, optval, optlen);
431 return sock_getsockopt(sock, level, optname, optval, optlen);
434 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
436 struct compat_timeval __user *ctv;
440 if (COMPAT_USE_64BIT_TIME)
441 return sock_get_timestamp(sk, userstamp);
443 ctv = (struct compat_timeval __user *) userstamp;
445 if (!sock_flag(sk, SOCK_TIMESTAMP))
446 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
447 tv = ktime_to_timeval(sk->sk_stamp);
450 if (tv.tv_sec == 0) {
451 sk->sk_stamp = ktime_get_real();
452 tv = ktime_to_timeval(sk->sk_stamp);
455 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
456 put_user(tv.tv_usec, &ctv->tv_usec))
460 EXPORT_SYMBOL(compat_sock_get_timestamp);
462 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
464 struct compat_timespec __user *ctv;
468 if (COMPAT_USE_64BIT_TIME)
469 return sock_get_timestampns (sk, userstamp);
471 ctv = (struct compat_timespec __user *) userstamp;
473 if (!sock_flag(sk, SOCK_TIMESTAMP))
474 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
475 ts = ktime_to_timespec(sk->sk_stamp);
478 if (ts.tv_sec == 0) {
479 sk->sk_stamp = ktime_get_real();
480 ts = ktime_to_timespec(sk->sk_stamp);
483 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
484 put_user(ts.tv_nsec, &ctv->tv_nsec))
488 EXPORT_SYMBOL(compat_sock_get_timestampns);
490 COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
491 char __user *, optval, int __user *, optlen)
494 struct socket *sock = sockfd_lookup(fd, &err);
497 err = security_socket_getsockopt(sock, level, optname);
503 if (level == SOL_SOCKET)
504 err = compat_sock_getsockopt(sock, level,
505 optname, optval, optlen);
506 else if (sock->ops->compat_getsockopt)
507 err = sock->ops->compat_getsockopt(sock, level,
508 optname, optval, optlen);
510 err = sock->ops->getsockopt(sock, level,
511 optname, optval, optlen);
517 struct compat_group_req {
519 struct __kernel_sockaddr_storage gr_group
523 struct compat_group_source_req {
525 struct __kernel_sockaddr_storage gsr_group
527 struct __kernel_sockaddr_storage gsr_source
531 struct compat_group_filter {
533 struct __kernel_sockaddr_storage gf_group
537 struct __kernel_sockaddr_storage gf_slist[1]
541 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
542 sizeof(struct __kernel_sockaddr_storage))
545 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
546 char __user *optval, unsigned int optlen,
547 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
549 char __user *koptval = optval;
550 int koptlen = optlen;
553 case MCAST_JOIN_GROUP:
554 case MCAST_LEAVE_GROUP:
556 struct compat_group_req __user *gr32 = (void *)optval;
557 struct group_req __user *kgr =
558 compat_alloc_user_space(sizeof(struct group_req));
561 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
562 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
563 __get_user(interface, &gr32->gr_interface) ||
564 __put_user(interface, &kgr->gr_interface) ||
565 copy_in_user(&kgr->gr_group, &gr32->gr_group,
566 sizeof(kgr->gr_group)))
568 koptval = (char __user *)kgr;
569 koptlen = sizeof(struct group_req);
572 case MCAST_JOIN_SOURCE_GROUP:
573 case MCAST_LEAVE_SOURCE_GROUP:
574 case MCAST_BLOCK_SOURCE:
575 case MCAST_UNBLOCK_SOURCE:
577 struct compat_group_source_req __user *gsr32 = (void *)optval;
578 struct group_source_req __user *kgsr = compat_alloc_user_space(
579 sizeof(struct group_source_req));
582 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
583 !access_ok(VERIFY_WRITE, kgsr,
584 sizeof(struct group_source_req)) ||
585 __get_user(interface, &gsr32->gsr_interface) ||
586 __put_user(interface, &kgsr->gsr_interface) ||
587 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
588 sizeof(kgsr->gsr_group)) ||
589 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
590 sizeof(kgsr->gsr_source)))
592 koptval = (char __user *)kgsr;
593 koptlen = sizeof(struct group_source_req);
598 struct compat_group_filter __user *gf32 = (void *)optval;
599 struct group_filter __user *kgf;
600 u32 interface, fmode, numsrc;
602 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
603 __get_user(interface, &gf32->gf_interface) ||
604 __get_user(fmode, &gf32->gf_fmode) ||
605 __get_user(numsrc, &gf32->gf_numsrc))
607 koptlen = optlen + sizeof(struct group_filter) -
608 sizeof(struct compat_group_filter);
609 if (koptlen < GROUP_FILTER_SIZE(numsrc))
611 kgf = compat_alloc_user_space(koptlen);
612 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
613 __put_user(interface, &kgf->gf_interface) ||
614 __put_user(fmode, &kgf->gf_fmode) ||
615 __put_user(numsrc, &kgf->gf_numsrc) ||
616 copy_in_user(&kgf->gf_group, &gf32->gf_group,
617 sizeof(kgf->gf_group)) ||
618 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
619 numsrc * sizeof(kgf->gf_slist[0]))))
621 koptval = (char __user *)kgf;
628 return setsockopt(sock, level, optname, koptval, koptlen);
630 EXPORT_SYMBOL(compat_mc_setsockopt);
632 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
633 char __user *optval, int __user *optlen,
634 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
636 struct compat_group_filter __user *gf32 = (void *)optval;
637 struct group_filter __user *kgf;
639 u32 interface, fmode, numsrc;
642 if (optname != MCAST_MSFILTER)
643 return getsockopt(sock, level, optname, optval, optlen);
645 koptlen = compat_alloc_user_space(sizeof(*koptlen));
646 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
647 __get_user(ulen, optlen))
650 /* adjust len for pad */
651 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
653 if (klen < GROUP_FILTER_SIZE(0))
656 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
657 __put_user(klen, koptlen))
660 /* have to allow space for previous compat_alloc_user_space, too */
661 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
663 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
664 __get_user(interface, &gf32->gf_interface) ||
665 __get_user(fmode, &gf32->gf_fmode) ||
666 __get_user(numsrc, &gf32->gf_numsrc) ||
667 __put_user(interface, &kgf->gf_interface) ||
668 __put_user(fmode, &kgf->gf_fmode) ||
669 __put_user(numsrc, &kgf->gf_numsrc) ||
670 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
673 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
677 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
678 __get_user(klen, koptlen))
681 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
683 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
684 __put_user(ulen, optlen))
687 if (!access_ok(VERIFY_READ, kgf, klen) ||
688 !access_ok(VERIFY_WRITE, gf32, ulen) ||
689 __get_user(interface, &kgf->gf_interface) ||
690 __get_user(fmode, &kgf->gf_fmode) ||
691 __get_user(numsrc, &kgf->gf_numsrc) ||
692 __put_user(interface, &gf32->gf_interface) ||
693 __put_user(fmode, &gf32->gf_fmode) ||
694 __put_user(numsrc, &gf32->gf_numsrc))
699 klen -= GROUP_FILTER_SIZE(0);
700 copylen = numsrc * sizeof(gf32->gf_slist[0]);
703 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
708 EXPORT_SYMBOL(compat_mc_getsockopt);
711 /* Argument list sizes for compat_sys_socketcall */
712 #define AL(x) ((x) * sizeof(u32))
713 static unsigned char nas[21] = {
714 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
715 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
716 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
721 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
723 return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
726 COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
727 unsigned int, vlen, unsigned int, flags)
729 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
730 flags | MSG_CMSG_COMPAT);
733 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
735 return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
738 COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
740 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
743 COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
744 unsigned int, flags, struct sockaddr __user *, addr,
745 int __user *, addrlen)
747 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
750 COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
751 unsigned int, vlen, unsigned int, flags,
752 struct compat_timespec __user *, timeout)
755 struct timespec ktspec;
758 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
759 flags | MSG_CMSG_COMPAT, NULL);
761 if (compat_get_timespec(&ktspec, timeout))
764 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
765 flags | MSG_CMSG_COMPAT, &ktspec);
766 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
772 COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
778 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
780 if (copy_from_user(a, args, nas[call]))
787 ret = sys_socket(a0, a1, a[2]);
790 ret = sys_bind(a0, compat_ptr(a1), a[2]);
793 ret = sys_connect(a0, compat_ptr(a1), a[2]);
796 ret = sys_listen(a0, a1);
799 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
801 case SYS_GETSOCKNAME:
802 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
804 case SYS_GETPEERNAME:
805 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
808 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
811 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
814 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
817 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
820 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
821 compat_ptr(a[4]), compat_ptr(a[5]));
824 ret = sys_shutdown(a0, a1);
827 ret = compat_sys_setsockopt(a0, a1, a[2],
828 compat_ptr(a[3]), a[4]);
831 ret = compat_sys_getsockopt(a0, a1, a[2],
832 compat_ptr(a[3]), compat_ptr(a[4]));
835 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
838 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
841 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
844 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
848 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);