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 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
75 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
76 kmsg->msg_name = compat_ptr(tmp1);
77 kmsg->msg_iov = compat_ptr(tmp2);
78 kmsg->msg_control = compat_ptr(tmp3);
82 /* I've named the args so it is easy to tell whose space the pointers are in. */
83 int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
84 struct sockaddr_storage *kern_address, int mode)
88 if (kern_msg->msg_name && kern_msg->msg_namelen) {
89 if (mode == VERIFY_READ) {
90 int err = move_addr_to_kernel(kern_msg->msg_name,
91 kern_msg->msg_namelen,
96 kern_msg->msg_name = kern_address;
98 kern_msg->msg_name = NULL;
99 kern_msg->msg_namelen = 0;
102 tot_len = iov_from_user_compat_to_kern(kern_iov,
103 (struct compat_iovec __user *)kern_msg->msg_iov,
104 kern_msg->msg_iovlen);
106 kern_msg->msg_iov = kern_iov;
112 #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
114 #define CMSG_COMPAT_DATA(cmsg) \
115 ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr))))
116 #define CMSG_COMPAT_SPACE(len) \
117 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len))
118 #define CMSG_COMPAT_LEN(len) \
119 (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len))
121 #define CMSG_COMPAT_FIRSTHDR(msg) \
122 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
123 (struct compat_cmsghdr __user *)((msg)->msg_control) : \
124 (struct compat_cmsghdr __user *)NULL)
126 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
127 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
128 (ucmlen) <= (unsigned long) \
129 ((mhdr)->msg_controllen - \
130 ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
132 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
133 struct compat_cmsghdr __user *cmsg, int cmsg_len)
135 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
136 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
139 return (struct compat_cmsghdr __user *)ptr;
142 /* There is a lot of hair here because the alignment rules (and
143 * thus placement) of cmsg headers and length are different for
144 * 32-bit apps. -DaveM
146 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
147 unsigned char *stackbuf, int stackbuf_size)
149 struct compat_cmsghdr __user *ucmsg;
150 struct cmsghdr *kcmsg, *kcmsg_base;
151 compat_size_t ucmlen;
152 __kernel_size_t kcmlen, tmp;
156 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
157 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
158 while (ucmsg != NULL) {
159 if (get_user(ucmlen, &ucmsg->cmsg_len))
163 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
166 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
167 CMSG_ALIGN(sizeof(struct cmsghdr)));
168 tmp = CMSG_ALIGN(tmp);
170 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
175 /* The kcmlen holds the 64-bit version of the control length.
176 * It may not be modified as we do not stick it into the kmsg
177 * until we have successfully copied over all of the data
180 if (kcmlen > stackbuf_size)
181 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
185 /* Now copy them over neatly. */
186 memset(kcmsg, 0, kcmlen);
187 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
188 while (ucmsg != NULL) {
189 if (__get_user(ucmlen, &ucmsg->cmsg_len))
191 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
193 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
194 CMSG_ALIGN(sizeof(struct cmsghdr)));
195 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
197 kcmsg->cmsg_len = tmp;
198 tmp = CMSG_ALIGN(tmp);
199 if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) ||
200 __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) ||
201 copy_from_user(CMSG_DATA(kcmsg),
202 CMSG_COMPAT_DATA(ucmsg),
203 (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg)))))
207 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
208 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
211 /* Ok, looks like we made it. Hook it up and return success. */
212 kmsg->msg_control = kcmsg_base;
213 kmsg->msg_controllen = kcmlen;
219 if (kcmsg_base != (struct cmsghdr *)stackbuf)
220 sock_kfree_s(sk, kcmsg_base, kcmlen);
224 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
226 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
227 struct compat_cmsghdr cmhdr;
228 struct compat_timeval ctv;
229 struct compat_timespec cts[3];
232 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
233 kmsg->msg_flags |= MSG_CTRUNC;
234 return 0; /* XXX: return error? check spec. */
237 if (!COMPAT_USE_64BIT_TIME) {
238 if (level == SOL_SOCKET && type == SCM_TIMESTAMP) {
239 struct timeval *tv = (struct timeval *)data;
240 ctv.tv_sec = tv->tv_sec;
241 ctv.tv_usec = tv->tv_usec;
245 if (level == SOL_SOCKET &&
246 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
247 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
249 struct timespec *ts = (struct timespec *)data;
250 for (i = 0; i < count; i++) {
251 cts[i].tv_sec = ts[i].tv_sec;
252 cts[i].tv_nsec = ts[i].tv_nsec;
255 len = sizeof(cts[0]) * count;
259 cmlen = CMSG_COMPAT_LEN(len);
260 if (kmsg->msg_controllen < cmlen) {
261 kmsg->msg_flags |= MSG_CTRUNC;
262 cmlen = kmsg->msg_controllen;
264 cmhdr.cmsg_level = level;
265 cmhdr.cmsg_type = type;
266 cmhdr.cmsg_len = cmlen;
268 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
270 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
272 cmlen = CMSG_COMPAT_SPACE(len);
273 if (kmsg->msg_controllen < cmlen)
274 cmlen = kmsg->msg_controllen;
275 kmsg->msg_control += cmlen;
276 kmsg->msg_controllen -= cmlen;
280 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
282 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
283 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
284 int fdnum = scm->fp->count;
285 struct file **fp = scm->fp->fp;
292 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
294 err = security_file_receive(fp[i]);
297 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
302 err = put_user(new_fd, cmfptr);
304 put_unused_fd(new_fd);
307 /* Bump the usage count and install the file. */
308 fd_install(new_fd, get_file(fp[i]));
312 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
313 err = put_user(SOL_SOCKET, &cm->cmsg_level);
315 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
317 err = put_user(cmlen, &cm->cmsg_len);
319 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
320 kmsg->msg_control += cmlen;
321 kmsg->msg_controllen -= cmlen;
325 kmsg->msg_flags |= MSG_CTRUNC;
328 * All of the files that fit in the message have had their
329 * usage counts incremented, so we just free the list.
334 static int do_set_attach_filter(struct socket *sock, int level, int optname,
335 char __user *optval, unsigned int optlen)
337 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
338 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
342 if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
343 !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
344 __get_user(len, &fprog32->len) ||
345 __get_user(ptr, &fprog32->filter) ||
346 __put_user(len, &kfprog->len) ||
347 __put_user(compat_ptr(ptr), &kfprog->filter))
350 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
351 sizeof(struct sock_fprog));
354 static int do_set_sock_timeout(struct socket *sock, int level,
355 int optname, char __user *optval, unsigned int optlen)
357 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
358 struct timeval ktime;
362 if (optlen < sizeof(*up))
364 if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
365 __get_user(ktime.tv_sec, &up->tv_sec) ||
366 __get_user(ktime.tv_usec, &up->tv_usec))
370 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
376 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
377 char __user *optval, unsigned int optlen)
379 if (optname == SO_ATTACH_FILTER)
380 return do_set_attach_filter(sock, level, optname,
382 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
383 return do_set_sock_timeout(sock, level, optname, optval, optlen);
385 return sock_setsockopt(sock, level, optname, optval, optlen);
388 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
389 char __user *optval, unsigned int optlen)
392 struct socket *sock = sockfd_lookup(fd, &err);
395 err = security_socket_setsockopt(sock, level, optname);
401 if (level == SOL_SOCKET)
402 err = compat_sock_setsockopt(sock, level,
403 optname, optval, optlen);
404 else if (sock->ops->compat_setsockopt)
405 err = sock->ops->compat_setsockopt(sock, level,
406 optname, optval, optlen);
408 err = sock->ops->setsockopt(sock, level,
409 optname, optval, optlen);
415 static int do_get_sock_timeout(struct socket *sock, int level, int optname,
416 char __user *optval, int __user *optlen)
418 struct compat_timeval __user *up;
419 struct timeval ktime;
423 up = (struct compat_timeval __user *) optval;
424 if (get_user(len, optlen))
426 if (len < sizeof(*up))
431 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
435 if (put_user(sizeof(*up), optlen) ||
436 !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
437 __put_user(ktime.tv_sec, &up->tv_sec) ||
438 __put_user(ktime.tv_usec, &up->tv_usec))
444 static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
445 char __user *optval, int __user *optlen)
447 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
448 return do_get_sock_timeout(sock, level, optname, optval, optlen);
449 return sock_getsockopt(sock, level, optname, optval, optlen);
452 int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
454 struct compat_timeval __user *ctv;
458 if (COMPAT_USE_64BIT_TIME)
459 return sock_get_timestamp(sk, userstamp);
461 ctv = (struct compat_timeval __user *) userstamp;
463 if (!sock_flag(sk, SOCK_TIMESTAMP))
464 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
465 tv = ktime_to_timeval(sk->sk_stamp);
468 if (tv.tv_sec == 0) {
469 sk->sk_stamp = ktime_get_real();
470 tv = ktime_to_timeval(sk->sk_stamp);
473 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
474 put_user(tv.tv_usec, &ctv->tv_usec))
478 EXPORT_SYMBOL(compat_sock_get_timestamp);
480 int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
482 struct compat_timespec __user *ctv;
486 if (COMPAT_USE_64BIT_TIME)
487 return sock_get_timestampns (sk, userstamp);
489 ctv = (struct compat_timespec __user *) userstamp;
491 if (!sock_flag(sk, SOCK_TIMESTAMP))
492 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
493 ts = ktime_to_timespec(sk->sk_stamp);
496 if (ts.tv_sec == 0) {
497 sk->sk_stamp = ktime_get_real();
498 ts = ktime_to_timespec(sk->sk_stamp);
501 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
502 put_user(ts.tv_nsec, &ctv->tv_nsec))
506 EXPORT_SYMBOL(compat_sock_get_timestampns);
508 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
509 char __user *optval, int __user *optlen)
512 struct socket *sock = sockfd_lookup(fd, &err);
515 err = security_socket_getsockopt(sock, level, optname);
521 if (level == SOL_SOCKET)
522 err = compat_sock_getsockopt(sock, level,
523 optname, optval, optlen);
524 else if (sock->ops->compat_getsockopt)
525 err = sock->ops->compat_getsockopt(sock, level,
526 optname, optval, optlen);
528 err = sock->ops->getsockopt(sock, level,
529 optname, optval, optlen);
535 struct compat_group_req {
537 struct __kernel_sockaddr_storage gr_group
538 __attribute__ ((aligned(4)));
541 struct compat_group_source_req {
543 struct __kernel_sockaddr_storage gsr_group
544 __attribute__ ((aligned(4)));
545 struct __kernel_sockaddr_storage gsr_source
546 __attribute__ ((aligned(4)));
549 struct compat_group_filter {
551 struct __kernel_sockaddr_storage gf_group
552 __attribute__ ((aligned(4)));
555 struct __kernel_sockaddr_storage gf_slist[1]
556 __attribute__ ((aligned(4)));
559 #define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
560 sizeof(struct __kernel_sockaddr_storage))
563 int compat_mc_setsockopt(struct sock *sock, int level, int optname,
564 char __user *optval, unsigned int optlen,
565 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
567 char __user *koptval = optval;
568 int koptlen = optlen;
571 case MCAST_JOIN_GROUP:
572 case MCAST_LEAVE_GROUP:
574 struct compat_group_req __user *gr32 = (void *)optval;
575 struct group_req __user *kgr =
576 compat_alloc_user_space(sizeof(struct group_req));
579 if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
580 !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
581 __get_user(interface, &gr32->gr_interface) ||
582 __put_user(interface, &kgr->gr_interface) ||
583 copy_in_user(&kgr->gr_group, &gr32->gr_group,
584 sizeof(kgr->gr_group)))
586 koptval = (char __user *)kgr;
587 koptlen = sizeof(struct group_req);
590 case MCAST_JOIN_SOURCE_GROUP:
591 case MCAST_LEAVE_SOURCE_GROUP:
592 case MCAST_BLOCK_SOURCE:
593 case MCAST_UNBLOCK_SOURCE:
595 struct compat_group_source_req __user *gsr32 = (void *)optval;
596 struct group_source_req __user *kgsr = compat_alloc_user_space(
597 sizeof(struct group_source_req));
600 if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
601 !access_ok(VERIFY_WRITE, kgsr,
602 sizeof(struct group_source_req)) ||
603 __get_user(interface, &gsr32->gsr_interface) ||
604 __put_user(interface, &kgsr->gsr_interface) ||
605 copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group,
606 sizeof(kgsr->gsr_group)) ||
607 copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source,
608 sizeof(kgsr->gsr_source)))
610 koptval = (char __user *)kgsr;
611 koptlen = sizeof(struct group_source_req);
616 struct compat_group_filter __user *gf32 = (void *)optval;
617 struct group_filter __user *kgf;
618 u32 interface, fmode, numsrc;
620 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
621 __get_user(interface, &gf32->gf_interface) ||
622 __get_user(fmode, &gf32->gf_fmode) ||
623 __get_user(numsrc, &gf32->gf_numsrc))
625 koptlen = optlen + sizeof(struct group_filter) -
626 sizeof(struct compat_group_filter);
627 if (koptlen < GROUP_FILTER_SIZE(numsrc))
629 kgf = compat_alloc_user_space(koptlen);
630 if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
631 __put_user(interface, &kgf->gf_interface) ||
632 __put_user(fmode, &kgf->gf_fmode) ||
633 __put_user(numsrc, &kgf->gf_numsrc) ||
634 copy_in_user(&kgf->gf_group, &gf32->gf_group,
635 sizeof(kgf->gf_group)) ||
636 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
637 numsrc * sizeof(kgf->gf_slist[0]))))
639 koptval = (char __user *)kgf;
646 return setsockopt(sock, level, optname, koptval, koptlen);
648 EXPORT_SYMBOL(compat_mc_setsockopt);
650 int compat_mc_getsockopt(struct sock *sock, int level, int optname,
651 char __user *optval, int __user *optlen,
652 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
654 struct compat_group_filter __user *gf32 = (void *)optval;
655 struct group_filter __user *kgf;
657 u32 interface, fmode, numsrc;
660 if (optname != MCAST_MSFILTER)
661 return getsockopt(sock, level, optname, optval, optlen);
663 koptlen = compat_alloc_user_space(sizeof(*koptlen));
664 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
665 __get_user(ulen, optlen))
668 /* adjust len for pad */
669 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
671 if (klen < GROUP_FILTER_SIZE(0))
674 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
675 __put_user(klen, koptlen))
678 /* have to allow space for previous compat_alloc_user_space, too */
679 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
681 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
682 __get_user(interface, &gf32->gf_interface) ||
683 __get_user(fmode, &gf32->gf_fmode) ||
684 __get_user(numsrc, &gf32->gf_numsrc) ||
685 __put_user(interface, &kgf->gf_interface) ||
686 __put_user(fmode, &kgf->gf_fmode) ||
687 __put_user(numsrc, &kgf->gf_numsrc) ||
688 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
691 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
695 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
696 __get_user(klen, koptlen))
699 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
701 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
702 __put_user(ulen, optlen))
705 if (!access_ok(VERIFY_READ, kgf, klen) ||
706 !access_ok(VERIFY_WRITE, gf32, ulen) ||
707 __get_user(interface, &kgf->gf_interface) ||
708 __get_user(fmode, &kgf->gf_fmode) ||
709 __get_user(numsrc, &kgf->gf_numsrc) ||
710 __put_user(interface, &gf32->gf_interface) ||
711 __put_user(fmode, &gf32->gf_fmode) ||
712 __put_user(numsrc, &gf32->gf_numsrc))
717 klen -= GROUP_FILTER_SIZE(0);
718 copylen = numsrc * sizeof(gf32->gf_slist[0]);
721 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
726 EXPORT_SYMBOL(compat_mc_getsockopt);
729 /* Argument list sizes for compat_sys_socketcall */
730 #define AL(x) ((x) * sizeof(u32))
731 static unsigned char nas[21] = {
732 AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
733 AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
734 AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
739 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
741 if (flags & MSG_CMSG_COMPAT)
743 return __sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
746 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
747 unsigned int vlen, unsigned int flags)
749 if (flags & MSG_CMSG_COMPAT)
751 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
752 flags | MSG_CMSG_COMPAT);
755 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags)
757 if (flags & MSG_CMSG_COMPAT)
759 return __sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
762 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, unsigned int flags)
764 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
767 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
768 unsigned int flags, struct sockaddr __user *addr,
771 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
774 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
775 unsigned int vlen, unsigned int flags,
776 struct compat_timespec __user *timeout)
779 struct timespec ktspec;
781 if (flags & MSG_CMSG_COMPAT)
785 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
786 flags | MSG_CMSG_COMPAT, NULL);
788 if (compat_get_timespec(&ktspec, timeout))
791 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
792 flags | MSG_CMSG_COMPAT, &ktspec);
793 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
799 asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
805 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
807 if (copy_from_user(a, args, nas[call]))
814 ret = sys_socket(a0, a1, a[2]);
817 ret = sys_bind(a0, compat_ptr(a1), a[2]);
820 ret = sys_connect(a0, compat_ptr(a1), a[2]);
823 ret = sys_listen(a0, a1);
826 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
828 case SYS_GETSOCKNAME:
829 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
831 case SYS_GETPEERNAME:
832 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
835 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
838 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
841 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
844 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
847 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
848 compat_ptr(a[4]), compat_ptr(a[5]));
851 ret = sys_shutdown(a0, a1);
854 ret = compat_sys_setsockopt(a0, a1, a[2],
855 compat_ptr(a[3]), a[4]);
858 ret = compat_sys_getsockopt(a0, a1, a[2],
859 compat_ptr(a[3]), compat_ptr(a[4]));
862 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
865 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
868 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
871 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
875 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);