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 static inline int iov_from_user_compat_to_kern(struct iovec *kiov,
35 struct compat_iovec __user *uiov32,
44 if (get_user(len, &uiov32->iov_len) ||
45 get_user(buf, &uiov32->iov_base))
48 if (len > INT_MAX - tot_len)
49 len = INT_MAX - tot_len;
52 kiov->iov_base = compat_ptr(buf);
53 kiov->iov_len = (__kernel_size_t) len;
61 int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
63 compat_uptr_t tmp1, tmp2, tmp3;
65 if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
66 __get_user(tmp1, &umsg->msg_name) ||
67 __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
68 __get_user(tmp2, &umsg->msg_iov) ||
69 __get_user(kmsg->msg_iovlen, &umsg->msg_iovlen) ||
70 __get_user(tmp3, &umsg->msg_control) ||
71 __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
72 __get_user(kmsg->msg_flags, &umsg->msg_flags))
74 kmsg->msg_name = compat_ptr(tmp1);
75 kmsg->msg_iov = compat_ptr(tmp2);
76 kmsg->msg_control = compat_ptr(tmp3);
80 /* I've named the args so it is easy to tell whose space the pointers are in. */
81 int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
82 struct sockaddr *kern_address, int mode)
86 if (kern_msg->msg_namelen) {
87 if (mode == VERIFY_READ) {
88 int err = move_addr_to_kernel(kern_msg->msg_name,
89 kern_msg->msg_namelen,
94 kern_msg->msg_name = kern_address;
96 kern_msg->msg_name = NULL;
98 tot_len = iov_from_user_compat_to_kern(kern_iov,
99 (struct compat_iovec __user *)kern_msg->msg_iov,
100 kern_msg->msg_iovlen);
102 kern_msg->msg_iov = kern_iov;
108 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
110 #define CMSG_COMPAT_DATA(cmsg) \
111 ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
112 #define CMSG_COMPAT_SPACE(len) \
113 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
114 #define CMSG_COMPAT_LEN(len) \
115 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
117 #define CMSG_COMPAT_FIRSTHDR(msg) \
118 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
119 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
120 (struct compat_cmsghdr __user *)NULL)
122 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
123 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
124 (ucmlen) <= (unsigned long) \
125 ((mhdr)->msg_controllen - \
126 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
128 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
129 struct compat_cmsghdr __user *cmsg, int cmsg_len)
131 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
132 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
135 return (struct compat_cmsghdr __user *)ptr;
138 /* There is a lot of hair here because the alignment rules (and
139 * thus placement) of cmsg headers and length are different for
140 * 32-bit apps. -DaveM
142 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
143 unsigned char *stackbuf, int stackbuf_size)
145 struct compat_cmsghdr __user *ucmsg;
146 struct cmsghdr *kcmsg, *kcmsg_base;
147 compat_size_t ucmlen;
148 __kernel_size_t kcmlen, tmp;
152 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
153 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
154 while (ucmsg != NULL) {
155 if (get_user(ucmlen, &ucmsg->cmsg_len))
159 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
162 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
163 CMSG_ALIGN(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 - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
190 CMSG_ALIGN(sizeof(struct cmsghdr)));
191 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
193 kcmsg->cmsg_len = tmp;
194 tmp = CMSG_ALIGN(tmp);
195 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
196 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
197 copy_from_user(CMSG_DATA(kcmsg),
198 CMSG_COMPAT_DATA(ucmsg),
199 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
203 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
204 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
207 /* Ok, looks like we made it. Hook it up and return success. */
208 kmsg->msg_control = kcmsg_base;
209 kmsg->msg_controllen = kcmlen;
215 if (kcmsg_base != (struct cmsghdr *)stackbuf)
216 sock_kfree_s(sk, kcmsg_base, kcmlen);
220 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
222 struct compat_timeval ctv;
223 struct compat_timespec cts[3];
224 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
225 struct compat_cmsghdr cmhdr;
228 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
229 kmsg->msg_flags |= MSG_CTRUNC;
230 return 0; /* XXX: return error? check spec. */
233 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
234 struct timeval *tv = (struct timeval *)data;
235 ctv.tv_sec = tv->tv_sec;
236 ctv.tv_usec = tv->tv_usec;
240 if (level == SOL_SOCKET &&
241 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
242 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
244 struct timespec *ts = (struct timespec *)data;
245 for (i = 0; i < count; i++) {
246 cts[i].tv_sec = ts[i].tv_sec;
247 cts[i].tv_nsec = ts[i].tv_nsec;
250 len = sizeof(cts[0]) * count;
253 cmlen = CMSG_COMPAT_LEN(len);
254 if (kmsg->msg_controllen < cmlen) {
255 kmsg->msg_flags |= MSG_CTRUNC;
256 cmlen = kmsg->msg_controllen;
258 cmhdr.cmsg_level = level;
259 cmhdr.cmsg_type = type;
260 cmhdr.cmsg_len = cmlen;
262 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
264 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
266 cmlen = CMSG_COMPAT_SPACE(len);
267 if (kmsg->msg_controllen < cmlen)
268 cmlen = kmsg->msg_controllen;
269 kmsg->msg_control += cmlen;
270 kmsg->msg_controllen -= cmlen;
274 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
276 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
277 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
278 int fdnum = scm->fp->count;
279 struct file **fp = scm->fp->fp;
286 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
288 err = security_file_receive(fp[i]);
291 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
296 err = put_user(new_fd, cmfptr);
298 put_unused_fd(new_fd);
301 /* Bump the usage count and install the file. */
303 fd_install(new_fd, fp[i]);
307 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
308 err = put_user(SOL_SOCKET, &cm->cmsg_level);
310 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
312 err = put_user(cmlen, &cm->cmsg_len);
314 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
315 kmsg->msg_control += cmlen;
316 kmsg->msg_controllen -= cmlen;
320 kmsg->msg_flags |= MSG_CTRUNC;
323 * All of the files that fit in the message have had their
324 * usage counts incremented, so we just free the list.
329 static int do_set_attach_filter(struct socket *sock, int level, int optname,
330 char __user *optval, unsigned int optlen)
332 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
333 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
337 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
338 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
339 __get_user(len, &fprog32->len) ||
340 __get_user(ptr, &fprog32->filter) ||
341 __put_user(len, &kfprog->len) ||
342 __put_user(compat_ptr(ptr), &kfprog->filter))
345 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
346 sizeof(struct sock_fprog));
349 static int do_set_sock_timeout(struct socket *sock, int level,
350 int optname, char __user *optval, unsigned int optlen)
352 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
353 struct timeval ktime;
357 if (optlen < sizeof(*up))
359 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
360 __get_user(ktime.tv_sec, &up->tv_sec) ||
361 __get_user(ktime.tv_usec, &up->tv_usec))
365 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
371 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
372 char __user *optval, unsigned int optlen)
374 if (optname == SO_ATTACH_FILTER)
375 return do_set_attach_filter(sock, level, optname,
377 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
378 return do_set_sock_timeout(sock, level, optname, optval, optlen);
380 return sock_setsockopt(sock, level, optname, optval, optlen);
383 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
384 char __user *optval, unsigned int optlen)
387 struct socket *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 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
411 char __user *optval, int __user *optlen)
413 struct compat_timeval __user *up;
414 struct timeval ktime;
418 up = (struct compat_timeval __user *) optval;
419 if (get_user(len, optlen))
421 if (len < sizeof(*up))
426 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
430 if (put_user(sizeof(*up), optlen) ||
431 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
432 __put_user(ktime.tv_sec, &up->tv_sec) ||
433 __put_user(ktime.tv_usec, &up->tv_usec))
439 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
440 char __user *optval, int __user *optlen)
442 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
443 return do_get_sock_timeout(sock, level, optname, optval, optlen);
444 return sock_getsockopt(sock, level, optname, optval, optlen);
447 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
449 struct compat_timeval __user *ctv =
450 (struct compat_timeval __user *) userstamp;
454 if (!sock_flag(sk, SOCK_TIMESTAMP))
455 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
456 tv = ktime_to_timeval(sk->sk_stamp);
459 if (tv.tv_sec == 0) {
460 sk->sk_stamp = ktime_get_real();
461 tv = ktime_to_timeval(sk->sk_stamp);
464 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
465 put_user(tv.tv_usec, &ctv->tv_usec))
469 EXPORT_SYMBOL(compat_sock_get_timestamp);
471 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
473 struct compat_timespec __user *ctv =
474 (struct compat_timespec __user *) userstamp;
478 if (!sock_flag(sk, SOCK_TIMESTAMP))
479 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
480 ts = ktime_to_timespec(sk->sk_stamp);
483 if (ts.tv_sec == 0) {
484 sk->sk_stamp = ktime_get_real();
485 ts = ktime_to_timespec(sk->sk_stamp);
488 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
489 put_user(ts.tv_nsec, &ctv->tv_nsec))
493 EXPORT_SYMBOL(compat_sock_get_timestampns);
495 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
496 char __user *optval, int __user *optlen)
499 struct socket *sock = sockfd_lookup(fd, &err);
502 err = security_socket_getsockopt(sock, level, optname);
508 if (level == SOL_SOCKET)
509 err = compat_sock_getsockopt(sock, level,
510 optname, optval, optlen);
511 else if (sock->ops->compat_getsockopt)
512 err = sock->ops->compat_getsockopt(sock, level,
513 optname, optval, optlen);
515 err = sock->ops->getsockopt(sock, level,
516 optname, optval, optlen);
522 struct compat_group_req {
524 struct __kernel_sockaddr_storage gr_group
525 __attribute__ ((aligned(4)));
528 struct compat_group_source_req {
530 struct __kernel_sockaddr_storage gsr_group
531 __attribute__ ((aligned(4)));
532 struct __kernel_sockaddr_storage gsr_source
533 __attribute__ ((aligned(4)));
536 struct compat_group_filter {
538 struct __kernel_sockaddr_storage gf_group
539 __attribute__ ((aligned(4)));
542 struct __kernel_sockaddr_storage gf_slist[1]
543 __attribute__ ((aligned(4)));
546 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
547 sizeof(struct __kernel_sockaddr_storage))
550 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
551 char __user *optval, unsigned int optlen,
552 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
554 char __user *koptval = optval;
555 int koptlen = optlen;
558 case MCAST_JOIN_GROUP:
559 case MCAST_LEAVE_GROUP:
561 struct compat_group_req __user *gr32 = (void *)optval;
562 struct group_req __user *kgr =
563 compat_alloc_user_space(sizeof(struct group_req));
566 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
567 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
568 __get_user(interface, &gr32->gr_interface) ||
569 __put_user(interface, &kgr->gr_interface) ||
570 copy_in_user(&kgr->gr_group, &gr32->gr_group,
571 sizeof(kgr->gr_group)))
573 koptval = (char __user *)kgr;
574 koptlen = sizeof(struct group_req);
577 case MCAST_JOIN_SOURCE_GROUP:
578 case MCAST_LEAVE_SOURCE_GROUP:
579 case MCAST_BLOCK_SOURCE:
580 case MCAST_UNBLOCK_SOURCE:
582 struct compat_group_source_req __user *gsr32 = (void *)optval;
583 struct group_source_req __user *kgsr = compat_alloc_user_space(
584 sizeof(struct group_source_req));
587 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
588 !access_ok(VERIFY_WRITE, kgsr,
589 sizeof(struct group_source_req)) ||
590 __get_user(interface, &gsr32->gsr_interface) ||
591 __put_user(interface, &kgsr->gsr_interface) ||
592 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
593 sizeof(kgsr->gsr_group)) ||
594 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
595 sizeof(kgsr->gsr_source)))
597 koptval = (char __user *)kgsr;
598 koptlen = sizeof(struct group_source_req);
603 struct compat_group_filter __user *gf32 = (void *)optval;
604 struct group_filter __user *kgf;
605 u32 interface, fmode, numsrc;
607 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
608 __get_user(interface, &gf32->gf_interface) ||
609 __get_user(fmode, &gf32->gf_fmode) ||
610 __get_user(numsrc, &gf32->gf_numsrc))
612 koptlen = optlen + sizeof(struct group_filter) -
613 sizeof(struct compat_group_filter);
614 if (koptlen < GROUP_FILTER_SIZE(numsrc))
616 kgf = compat_alloc_user_space(koptlen);
617 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
618 __put_user(interface, &kgf->gf_interface) ||
619 __put_user(fmode, &kgf->gf_fmode) ||
620 __put_user(numsrc, &kgf->gf_numsrc) ||
621 copy_in_user(&kgf->gf_group, &gf32->gf_group,
622 sizeof(kgf->gf_group)) ||
623 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
624 numsrc * sizeof(kgf->gf_slist[0]))))
626 koptval = (char __user *)kgf;
633 return setsockopt(sock, level, optname, koptval, koptlen);
635 EXPORT_SYMBOL(compat_mc_setsockopt);
637 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
638 char __user *optval, int __user *optlen,
639 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
641 struct compat_group_filter __user *gf32 = (void *)optval;
642 struct group_filter __user *kgf;
644 u32 interface, fmode, numsrc;
647 if (optname != MCAST_MSFILTER)
648 return getsockopt(sock, level, optname, optval, optlen);
650 koptlen = compat_alloc_user_space(sizeof(*koptlen));
651 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
652 __get_user(ulen, optlen))
655 /* adjust len for pad */
656 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
658 if (klen < GROUP_FILTER_SIZE(0))
661 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
662 __put_user(klen, koptlen))
665 /* have to allow space for previous compat_alloc_user_space, too */
666 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
668 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
669 __get_user(interface, &gf32->gf_interface) ||
670 __get_user(fmode, &gf32->gf_fmode) ||
671 __get_user(numsrc, &gf32->gf_numsrc) ||
672 __put_user(interface, &kgf->gf_interface) ||
673 __put_user(fmode, &kgf->gf_fmode) ||
674 __put_user(numsrc, &kgf->gf_numsrc) ||
675 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
678 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
682 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
683 __get_user(klen, koptlen))
686 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
688 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
689 __put_user(ulen, optlen))
692 if (!access_ok(VERIFY_READ, kgf, klen) ||
693 !access_ok(VERIFY_WRITE, gf32, ulen) ||
694 __get_user(interface, &kgf->gf_interface) ||
695 __get_user(fmode, &kgf->gf_fmode) ||
696 __get_user(numsrc, &kgf->gf_numsrc) ||
697 __put_user(interface, &gf32->gf_interface) ||
698 __put_user(fmode, &gf32->gf_fmode) ||
699 __put_user(numsrc, &gf32->gf_numsrc))
704 klen -= GROUP_FILTER_SIZE(0);
705 copylen = numsrc * sizeof(gf32->gf_slist[0]);
708 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
713 EXPORT_SYMBOL(compat_mc_getsockopt);
716 /* Argument list sizes for compat_sys_socketcall */
717 #define AL(x) ((x) * sizeof(u32))
718 static unsigned char nas[21] = {
719 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
720 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
721 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
726 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags)
728 return sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
731 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
732 unsigned vlen, unsigned int flags)
734 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
735 flags | MSG_CMSG_COMPAT);
738 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
740 return sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
743 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, unsigned flags)
745 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
748 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
749 unsigned flags, struct sockaddr __user *addr,
752 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
755 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
756 unsigned vlen, unsigned int flags,
757 struct compat_timespec __user *timeout)
760 struct timespec ktspec;
763 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
764 flags | MSG_CMSG_COMPAT, NULL);
766 if (get_compat_timespec(&ktspec, timeout))
769 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
770 flags | MSG_CMSG_COMPAT, &ktspec);
771 if (datagrams > 0 && put_compat_timespec(&ktspec, timeout))
777 asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
783 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
785 if (copy_from_user(a, args, nas[call]))
792 ret = sys_socket(a0, a1, a[2]);
795 ret = sys_bind(a0, compat_ptr(a1), a[2]);
798 ret = sys_connect(a0, compat_ptr(a1), a[2]);
801 ret = sys_listen(a0, a1);
804 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
806 case SYS_GETSOCKNAME:
807 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
809 case SYS_GETPEERNAME:
810 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
813 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
816 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
819 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
822 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
825 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
826 compat_ptr(a[4]), compat_ptr(a[5]));
829 ret = sys_shutdown(a0, a1);
832 ret = compat_sys_setsockopt(a0, a1, a[2],
833 compat_ptr(a[3]), a[4]);
836 ret = compat_sys_getsockopt(a0, a1, a[2],
837 compat_ptr(a[3]), compat_ptr(a[4]));
840 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
843 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
846 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
849 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
853 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);