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))
76 kmsg->msg_namelen = 0;
78 if (kmsg->msg_namelen < 0)
81 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
82 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
83 kmsg->msg_name = compat_ptr(tmp1);
84 kmsg->msg_iov = compat_ptr(tmp2);
85 kmsg->msg_control = compat_ptr(tmp3);
89 /* I've named the args so it is easy to tell whose space the pointers are in. */
90 int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
91 struct sockaddr_storage *kern_address, int mode)
95 if (kern_msg->msg_name && kern_msg->msg_namelen) {
96 if (mode == VERIFY_READ) {
97 int err = move_addr_to_kernel(kern_msg->msg_name,
98 kern_msg->msg_namelen,
103 kern_msg->msg_name = kern_address;
105 kern_msg->msg_name = NULL;
106 kern_msg->msg_namelen = 0;
109 tot_len = iov_from_user_compat_to_kern(kern_iov,
110 (struct compat_iovec __user *)kern_msg->msg_iov,
111 kern_msg->msg_iovlen);
113 kern_msg->msg_iov = kern_iov;
119 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
121 #define CMSG_COMPAT_DATA(cmsg) \
122 ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
123 #define CMSG_COMPAT_SPACE(len) \
124 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
125 #define CMSG_COMPAT_LEN(len) \
126 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
128 #define CMSG_COMPAT_FIRSTHDR(msg) \
129 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
130 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
131 (struct compat_cmsghdr __user *)NULL)
133 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
134 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
135 (ucmlen) <= (unsigned long) \
136 ((mhdr)->msg_controllen - \
137 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
139 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
140 struct compat_cmsghdr __user *cmsg, int cmsg_len)
142 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
143 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
146 return (struct compat_cmsghdr __user *)ptr;
149 /* There is a lot of hair here because the alignment rules (and
150 * thus placement) of cmsg headers and length are different for
151 * 32-bit apps. -DaveM
153 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
154 unsigned char *stackbuf, int stackbuf_size)
156 struct compat_cmsghdr __user *ucmsg;
157 struct cmsghdr *kcmsg, *kcmsg_base;
158 compat_size_t ucmlen;
159 __kernel_size_t kcmlen, tmp;
163 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
164 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
165 while (ucmsg != NULL) {
166 if (get_user(ucmlen, &ucmsg->cmsg_len))
170 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
173 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
174 CMSG_ALIGN(sizeof(struct cmsghdr)));
175 tmp = CMSG_ALIGN(tmp);
177 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
182 /* The kcmlen holds the 64-bit version of the control length.
183 * It may not be modified as we do not stick it into the kmsg
184 * until we have successfully copied over all of the data
187 if (kcmlen > stackbuf_size)
188 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
192 /* Now copy them over neatly. */
193 memset(kcmsg, 0, kcmlen);
194 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
195 while (ucmsg != NULL) {
196 if (__get_user(ucmlen, &ucmsg->cmsg_len))
198 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
200 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
201 CMSG_ALIGN(sizeof(struct cmsghdr)));
202 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
204 kcmsg->cmsg_len = tmp;
205 tmp = CMSG_ALIGN(tmp);
206 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
207 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
208 copy_from_user(CMSG_DATA(kcmsg),
209 CMSG_COMPAT_DATA(ucmsg),
210 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
214 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
215 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
218 /* Ok, looks like we made it. Hook it up and return success. */
219 kmsg->msg_control = kcmsg_base;
220 kmsg->msg_controllen = kcmlen;
226 if (kcmsg_base != (struct cmsghdr *)stackbuf)
227 sock_kfree_s(sk, kcmsg_base, kcmlen);
231 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
233 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
234 struct compat_cmsghdr cmhdr;
235 struct compat_timeval ctv;
236 struct compat_timespec cts[3];
239 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
240 kmsg->msg_flags |= MSG_CTRUNC;
241 return 0; /* XXX: return error? check spec. */
244 if (!COMPAT_USE_64BIT_TIME) {
245 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
246 struct timeval *tv = (struct timeval *)data;
247 ctv.tv_sec = tv->tv_sec;
248 ctv.tv_usec = tv->tv_usec;
252 if (level == SOL_SOCKET &&
253 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
254 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
256 struct timespec *ts = (struct timespec *)data;
257 for (i = 0; i < count; i++) {
258 cts[i].tv_sec = ts[i].tv_sec;
259 cts[i].tv_nsec = ts[i].tv_nsec;
262 len = sizeof(cts[0]) * count;
266 cmlen = CMSG_COMPAT_LEN(len);
267 if (kmsg->msg_controllen < cmlen) {
268 kmsg->msg_flags |= MSG_CTRUNC;
269 cmlen = kmsg->msg_controllen;
271 cmhdr.cmsg_level = level;
272 cmhdr.cmsg_type = type;
273 cmhdr.cmsg_len = cmlen;
275 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
277 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
279 cmlen = CMSG_COMPAT_SPACE(len);
280 if (kmsg->msg_controllen < cmlen)
281 cmlen = kmsg->msg_controllen;
282 kmsg->msg_control += cmlen;
283 kmsg->msg_controllen -= cmlen;
287 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
289 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
290 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
291 int fdnum = scm->fp->count;
292 struct file **fp = scm->fp->fp;
299 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
301 err = security_file_receive(fp[i]);
304 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
309 err = put_user(new_fd, cmfptr);
311 put_unused_fd(new_fd);
314 /* Bump the usage count and install the file. */
315 fd_install(new_fd, get_file(fp[i]));
319 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
320 err = put_user(SOL_SOCKET, &cm->cmsg_level);
322 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
324 err = put_user(cmlen, &cm->cmsg_len);
326 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
327 kmsg->msg_control += cmlen;
328 kmsg->msg_controllen -= cmlen;
332 kmsg->msg_flags |= MSG_CTRUNC;
335 * All of the files that fit in the message have had their
336 * usage counts incremented, so we just free the list.
341 static int do_set_attach_filter(struct socket *sock, int level, int optname,
342 char __user *optval, unsigned int optlen)
344 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
345 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
349 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
350 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
351 __get_user(len, &fprog32->len) ||
352 __get_user(ptr, &fprog32->filter) ||
353 __put_user(len, &kfprog->len) ||
354 __put_user(compat_ptr(ptr), &kfprog->filter))
357 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
358 sizeof(struct sock_fprog));
361 static int do_set_sock_timeout(struct socket *sock, int level,
362 int optname, char __user *optval, unsigned int optlen)
364 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
365 struct timeval ktime;
369 if (optlen < sizeof(*up))
371 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
372 __get_user(ktime.tv_sec, &up->tv_sec) ||
373 __get_user(ktime.tv_usec, &up->tv_usec))
377 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
383 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
384 char __user *optval, unsigned int optlen)
386 if (optname == SO_ATTACH_FILTER)
387 return do_set_attach_filter(sock, level, optname,
389 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
390 return do_set_sock_timeout(sock, level, optname, optval, optlen);
392 return sock_setsockopt(sock, level, optname, optval, optlen);
395 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
396 char __user *optval, unsigned int optlen)
399 struct socket *sock = sockfd_lookup(fd, &err);
402 err = security_socket_setsockopt(sock, level, optname);
408 if (level == SOL_SOCKET)
409 err = compat_sock_setsockopt(sock, level,
410 optname, optval, optlen);
411 else if (sock->ops->compat_setsockopt)
412 err = sock->ops->compat_setsockopt(sock, level,
413 optname, optval, optlen);
415 err = sock->ops->setsockopt(sock, level,
416 optname, optval, optlen);
422 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
423 char __user *optval, int __user *optlen)
425 struct compat_timeval __user *up;
426 struct timeval ktime;
430 up = (struct compat_timeval __user *) optval;
431 if (get_user(len, optlen))
433 if (len < sizeof(*up))
438 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
442 if (put_user(sizeof(*up), optlen) ||
443 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
444 __put_user(ktime.tv_sec, &up->tv_sec) ||
445 __put_user(ktime.tv_usec, &up->tv_usec))
451 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
452 char __user *optval, int __user *optlen)
454 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
455 return do_get_sock_timeout(sock, level, optname, optval, optlen);
456 return sock_getsockopt(sock, level, optname, optval, optlen);
459 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
461 struct compat_timeval __user *ctv;
465 if (COMPAT_USE_64BIT_TIME)
466 return sock_get_timestamp(sk, userstamp);
468 ctv = (struct compat_timeval __user *) userstamp;
470 if (!sock_flag(sk, SOCK_TIMESTAMP))
471 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
472 tv = ktime_to_timeval(sk->sk_stamp);
475 if (tv.tv_sec == 0) {
476 sk->sk_stamp = ktime_get_real();
477 tv = ktime_to_timeval(sk->sk_stamp);
480 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
481 put_user(tv.tv_usec, &ctv->tv_usec))
485 EXPORT_SYMBOL(compat_sock_get_timestamp);
487 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
489 struct compat_timespec __user *ctv;
493 if (COMPAT_USE_64BIT_TIME)
494 return sock_get_timestampns (sk, userstamp);
496 ctv = (struct compat_timespec __user *) userstamp;
498 if (!sock_flag(sk, SOCK_TIMESTAMP))
499 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
500 ts = ktime_to_timespec(sk->sk_stamp);
503 if (ts.tv_sec == 0) {
504 sk->sk_stamp = ktime_get_real();
505 ts = ktime_to_timespec(sk->sk_stamp);
508 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
509 put_user(ts.tv_nsec, &ctv->tv_nsec))
513 EXPORT_SYMBOL(compat_sock_get_timestampns);
515 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
516 char __user *optval, int __user *optlen)
519 struct socket *sock = sockfd_lookup(fd, &err);
522 err = security_socket_getsockopt(sock, level, optname);
528 if (level == SOL_SOCKET)
529 err = compat_sock_getsockopt(sock, level,
530 optname, optval, optlen);
531 else if (sock->ops->compat_getsockopt)
532 err = sock->ops->compat_getsockopt(sock, level,
533 optname, optval, optlen);
535 err = sock->ops->getsockopt(sock, level,
536 optname, optval, optlen);
542 struct compat_group_req {
544 struct __kernel_sockaddr_storage gr_group
545 __attribute__ ((aligned(4)));
548 struct compat_group_source_req {
550 struct __kernel_sockaddr_storage gsr_group
551 __attribute__ ((aligned(4)));
552 struct __kernel_sockaddr_storage gsr_source
553 __attribute__ ((aligned(4)));
556 struct compat_group_filter {
558 struct __kernel_sockaddr_storage gf_group
559 __attribute__ ((aligned(4)));
562 struct __kernel_sockaddr_storage gf_slist[1]
563 __attribute__ ((aligned(4)));
566 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
567 sizeof(struct __kernel_sockaddr_storage))
570 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
571 char __user *optval, unsigned int optlen,
572 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
574 char __user *koptval = optval;
575 int koptlen = optlen;
578 case MCAST_JOIN_GROUP:
579 case MCAST_LEAVE_GROUP:
581 struct compat_group_req __user *gr32 = (void *)optval;
582 struct group_req __user *kgr =
583 compat_alloc_user_space(sizeof(struct group_req));
586 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
587 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
588 __get_user(interface, &gr32->gr_interface) ||
589 __put_user(interface, &kgr->gr_interface) ||
590 copy_in_user(&kgr->gr_group, &gr32->gr_group,
591 sizeof(kgr->gr_group)))
593 koptval = (char __user *)kgr;
594 koptlen = sizeof(struct group_req);
597 case MCAST_JOIN_SOURCE_GROUP:
598 case MCAST_LEAVE_SOURCE_GROUP:
599 case MCAST_BLOCK_SOURCE:
600 case MCAST_UNBLOCK_SOURCE:
602 struct compat_group_source_req __user *gsr32 = (void *)optval;
603 struct group_source_req __user *kgsr = compat_alloc_user_space(
604 sizeof(struct group_source_req));
607 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
608 !access_ok(VERIFY_WRITE, kgsr,
609 sizeof(struct group_source_req)) ||
610 __get_user(interface, &gsr32->gsr_interface) ||
611 __put_user(interface, &kgsr->gsr_interface) ||
612 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
613 sizeof(kgsr->gsr_group)) ||
614 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
615 sizeof(kgsr->gsr_source)))
617 koptval = (char __user *)kgsr;
618 koptlen = sizeof(struct group_source_req);
623 struct compat_group_filter __user *gf32 = (void *)optval;
624 struct group_filter __user *kgf;
625 u32 interface, fmode, numsrc;
627 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
628 __get_user(interface, &gf32->gf_interface) ||
629 __get_user(fmode, &gf32->gf_fmode) ||
630 __get_user(numsrc, &gf32->gf_numsrc))
632 koptlen = optlen + sizeof(struct group_filter) -
633 sizeof(struct compat_group_filter);
634 if (koptlen < GROUP_FILTER_SIZE(numsrc))
636 kgf = compat_alloc_user_space(koptlen);
637 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
638 __put_user(interface, &kgf->gf_interface) ||
639 __put_user(fmode, &kgf->gf_fmode) ||
640 __put_user(numsrc, &kgf->gf_numsrc) ||
641 copy_in_user(&kgf->gf_group, &gf32->gf_group,
642 sizeof(kgf->gf_group)) ||
643 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
644 numsrc * sizeof(kgf->gf_slist[0]))))
646 koptval = (char __user *)kgf;
653 return setsockopt(sock, level, optname, koptval, koptlen);
655 EXPORT_SYMBOL(compat_mc_setsockopt);
657 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
658 char __user *optval, int __user *optlen,
659 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
661 struct compat_group_filter __user *gf32 = (void *)optval;
662 struct group_filter __user *kgf;
664 u32 interface, fmode, numsrc;
667 if (optname != MCAST_MSFILTER)
668 return getsockopt(sock, level, optname, optval, optlen);
670 koptlen = compat_alloc_user_space(sizeof(*koptlen));
671 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
672 __get_user(ulen, optlen))
675 /* adjust len for pad */
676 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
678 if (klen < GROUP_FILTER_SIZE(0))
681 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
682 __put_user(klen, koptlen))
685 /* have to allow space for previous compat_alloc_user_space, too */
686 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
688 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
689 __get_user(interface, &gf32->gf_interface) ||
690 __get_user(fmode, &gf32->gf_fmode) ||
691 __get_user(numsrc, &gf32->gf_numsrc) ||
692 __put_user(interface, &kgf->gf_interface) ||
693 __put_user(fmode, &kgf->gf_fmode) ||
694 __put_user(numsrc, &kgf->gf_numsrc) ||
695 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
698 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
702 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
703 __get_user(klen, koptlen))
706 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
708 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
709 __put_user(ulen, optlen))
712 if (!access_ok(VERIFY_READ, kgf, klen) ||
713 !access_ok(VERIFY_WRITE, gf32, ulen) ||
714 __get_user(interface, &kgf->gf_interface) ||
715 __get_user(fmode, &kgf->gf_fmode) ||
716 __get_user(numsrc, &kgf->gf_numsrc) ||
717 __put_user(interface, &gf32->gf_interface) ||
718 __put_user(fmode, &gf32->gf_fmode) ||
719 __put_user(numsrc, &gf32->gf_numsrc))
724 klen -= GROUP_FILTER_SIZE(0);
725 copylen = numsrc * sizeof(gf32->gf_slist[0]);
728 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
733 EXPORT_SYMBOL(compat_mc_getsockopt);
736 /* Argument list sizes for compat_sys_socketcall */
737 #define AL(x) ((x) * sizeof(u32))
738 static unsigned char nas[21] = {
739 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
740 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
741 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
746 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
748 return __sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
751 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
752 unsigned int vlen, unsigned int flags)
754 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
755 flags | MSG_CMSG_COMPAT);
758 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
760 return __sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
763 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, unsigned int flags)
765 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
768 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
769 unsigned int flags, struct sockaddr __user *addr,
772 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
775 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
776 unsigned int vlen, unsigned int flags,
777 struct compat_timespec __user *timeout)
780 struct timespec ktspec;
783 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
784 flags | MSG_CMSG_COMPAT, NULL);
786 if (compat_get_timespec(&ktspec, timeout))
789 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
790 flags | MSG_CMSG_COMPAT, &ktspec);
791 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
797 asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
803 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
805 if (copy_from_user(a, args, nas[call]))
812 ret = sys_socket(a0, a1, a[2]);
815 ret = sys_bind(a0, compat_ptr(a1), a[2]);
818 ret = sys_connect(a0, compat_ptr(a1), a[2]);
821 ret = sys_listen(a0, a1);
824 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
826 case SYS_GETSOCKNAME:
827 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
829 case SYS_GETPEERNAME:
830 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
833 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
836 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
839 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
842 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
845 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
846 compat_ptr(a[4]), compat_ptr(a[5]));
849 ret = sys_shutdown(a0, a1);
852 ret = compat_sys_setsockopt(a0, a1, a[2],
853 compat_ptr(a[3]), a[4]);
856 ret = compat_sys_getsockopt(a0, a1, a[2],
857 compat_ptr(a[3]), compat_ptr(a[4]));
860 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
863 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
866 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
869 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
873 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);