blob: bc8aeefddf3f23cb259b15c319e05949b9f78901 [file] [log] [blame]
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +09001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 32bit Socket syscall emulation. Based on arch/sparc64/kernel/sys_sparc32.c.
3 *
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>
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +090011 * Copyright (C) 2000,2001 Andi Kleen, SuSE Labs
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 */
13
14#include <linux/kernel.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090015#include <linux/gfp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include <linux/fs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include <linux/security.h>
Paul Gortmakerbc3b2d72011-07-15 11:47:34 -040025#include <linux/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
27#include <net/scm.h>
28#include <net/sock.h>
David L Stevensdae50292008-04-27 01:06:07 -070029#include <net/ip.h>
30#include <net/ipv6.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <asm/uaccess.h>
32#include <net/compat.h>
33
34static inline int iov_from_user_compat_to_kern(struct iovec *kiov,
35 struct compat_iovec __user *uiov32,
36 int niov)
37{
38 int tot_len = 0;
39
Stephen Hemmingere71a4782007-04-10 20:10:33 -070040 while (niov > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 compat_uptr_t buf;
42 compat_size_t len;
43
Stephen Hemmingere71a4782007-04-10 20:10:33 -070044 if (get_user(len, &uiov32->iov_len) ||
David S. Miller8acfe462010-10-28 11:41:55 -070045 get_user(buf, &uiov32->iov_base))
46 return -EFAULT;
47
48 if (len > INT_MAX - tot_len)
49 len = INT_MAX - tot_len;
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 tot_len += len;
52 kiov->iov_base = compat_ptr(buf);
53 kiov->iov_len = (__kernel_size_t) len;
54 uiov32++;
55 kiov++;
56 niov--;
57 }
58 return tot_len;
59}
60
61int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
62{
63 compat_uptr_t tmp1, tmp2, tmp3;
64
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))
73 return -EFAULT;
Dan Carpenter1661bf32013-10-03 00:27:20 +030074 if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
Dan Carpenterdb31c552013-11-27 15:40:21 +030075 kmsg->msg_namelen = sizeof(struct sockaddr_storage);
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 kmsg->msg_name = compat_ptr(tmp1);
77 kmsg->msg_iov = compat_ptr(tmp2);
78 kmsg->msg_control = compat_ptr(tmp3);
79 return 0;
80}
81
82/* I've named the args so it is easy to tell whose space the pointers are in. */
83int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
Maciej Żenczykowski43db3622012-03-11 12:51:50 +000084 struct sockaddr_storage *kern_address, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -070085{
86 int tot_len;
87
Andrey Ryabinin40eea802014-07-26 21:26:58 +040088 if (kern_msg->msg_name && kern_msg->msg_namelen) {
Eric Dumazetc6d409c2010-06-03 20:03:40 -070089 if (mode == VERIFY_READ) {
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 int err = move_addr_to_kernel(kern_msg->msg_name,
91 kern_msg->msg_namelen,
92 kern_address);
Stephen Hemmingere71a4782007-04-10 20:10:33 -070093 if (err < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 return err;
95 }
Andrey Ryabinin40eea802014-07-26 21:26:58 +040096 kern_msg->msg_name = kern_address;
97 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 kern_msg->msg_name = NULL;
Andrey Ryabinin40eea802014-07-26 21:26:58 +040099 kern_msg->msg_namelen = 0;
100 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 tot_len = iov_from_user_compat_to_kern(kern_iov,
103 (struct compat_iovec __user *)kern_msg->msg_iov,
104 kern_msg->msg_iovlen);
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700105 if (tot_len >= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 kern_msg->msg_iov = kern_iov;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108 return tot_len;
109}
110
111/* Bleech... */
112#define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32))
113
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))
120
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)
125
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)))
131
132static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
133 struct compat_cmsghdr __user *cmsg, int cmsg_len)
134{
135 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
136 if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
137 msg->msg_controllen)
138 return NULL;
139 return (struct compat_cmsghdr __user *)ptr;
140}
141
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
145 */
Al Viro8920e8f2005-09-07 18:28:51 -0700146int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 unsigned char *stackbuf, int stackbuf_size)
148{
149 struct compat_cmsghdr __user *ucmsg;
150 struct cmsghdr *kcmsg, *kcmsg_base;
151 compat_size_t ucmlen;
152 __kernel_size_t kcmlen, tmp;
Al Viro8920e8f2005-09-07 18:28:51 -0700153 int err = -EFAULT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
155 kcmlen = 0;
156 kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
157 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700158 while (ucmsg != NULL) {
159 if (get_user(ucmlen, &ucmsg->cmsg_len))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 return -EFAULT;
161
162 /* Catch bogons. */
163 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
164 return -EINVAL;
165
166 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
167 CMSG_ALIGN(sizeof(struct cmsghdr)));
Al Viro8920e8f2005-09-07 18:28:51 -0700168 tmp = CMSG_ALIGN(tmp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 kcmlen += tmp;
170 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
171 }
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700172 if (kcmlen == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 return -EINVAL;
174
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
178 * from the user.
179 */
Al Viro8920e8f2005-09-07 18:28:51 -0700180 if (kcmlen > stackbuf_size)
181 kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL);
182 if (kcmsg == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 return -ENOBUFS;
184
185 /* Now copy them over neatly. */
186 memset(kcmsg, 0, kcmlen);
187 ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700188 while (ucmsg != NULL) {
Al Viro8920e8f2005-09-07 18:28:51 -0700189 if (__get_user(ucmlen, &ucmsg->cmsg_len))
190 goto Efault;
191 if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
192 goto Einval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) +
194 CMSG_ALIGN(sizeof(struct cmsghdr)));
Al Viro8920e8f2005-09-07 18:28:51 -0700195 if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp))
196 goto Einval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 kcmsg->cmsg_len = tmp;
Al Viro8920e8f2005-09-07 18:28:51 -0700198 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)))))
204 goto Efault;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205
206 /* Advance. */
Al Viro8920e8f2005-09-07 18:28:51 -0700207 kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
209 }
210
211 /* Ok, looks like we made it. Hook it up and return success. */
212 kmsg->msg_control = kcmsg_base;
213 kmsg->msg_controllen = kcmlen;
214 return 0;
215
Al Viro8920e8f2005-09-07 18:28:51 -0700216Einval:
217 err = -EINVAL;
218Efault:
219 if (kcmsg_base != (struct cmsghdr *)stackbuf)
220 sock_kfree_s(sk, kcmsg_base, kcmlen);
221 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222}
223
224int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
225{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
227 struct compat_cmsghdr cmhdr;
Jesper Juhl81881042012-07-22 11:37:20 +0000228 struct compat_timeval ctv;
229 struct compat_timespec cts[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 int cmlen;
231
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700232 if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 kmsg->msg_flags |= MSG_CTRUNC;
234 return 0; /* XXX: return error? check spec. */
235 }
236
H. J. Luee4fa232012-02-19 17:50:46 -0800237 if (!COMPAT_USE_64BIT_TIME) {
H. J. Luee4fa232012-02-19 17:50:46 -0800238 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;
242 data = &ctv;
243 len = sizeof(ctv);
Patrick Ohly20d49472009-02-12 05:03:38 +0000244 }
H. J. Luee4fa232012-02-19 17:50:46 -0800245 if (level == SOL_SOCKET &&
246 (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) {
247 int count = type == SCM_TIMESTAMPNS ? 1 : 3;
248 int i;
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;
253 }
254 data = &cts;
255 len = sizeof(cts[0]) * count;
256 }
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +0900257 }
258
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 cmlen = CMSG_COMPAT_LEN(len);
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700260 if (kmsg->msg_controllen < cmlen) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 kmsg->msg_flags |= MSG_CTRUNC;
262 cmlen = kmsg->msg_controllen;
263 }
264 cmhdr.cmsg_level = level;
265 cmhdr.cmsg_type = type;
266 cmhdr.cmsg_len = cmlen;
267
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700268 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 return -EFAULT;
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700270 if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 return -EFAULT;
272 cmlen = CMSG_COMPAT_SPACE(len);
Wei Yongjun1ac70e72007-12-20 14:36:44 -0800273 if (kmsg->msg_controllen < cmlen)
274 cmlen = kmsg->msg_controllen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 kmsg->msg_control += cmlen;
276 kmsg->msg_controllen -= cmlen;
277 return 0;
278}
279
280void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
281{
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;
286 int __user *cmfptr;
287 int err = 0, i;
288
289 if (fdnum < fdmax)
290 fdmax = fdnum;
291
292 for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) {
293 int new_fd;
294 err = security_file_receive(fp[i]);
295 if (err)
296 break;
Ulrich Drepper4a195422007-07-15 23:40:34 -0700297 err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags
298 ? O_CLOEXEC : 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 if (err < 0)
300 break;
301 new_fd = err;
302 err = put_user(new_fd, cmfptr);
303 if (err) {
304 put_unused_fd(new_fd);
305 break;
306 }
307 /* Bump the usage count and install the file. */
Al Virocb0942b2012-08-27 14:48:26 -0400308 fd_install(new_fd, get_file(fp[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 }
310
311 if (i > 0) {
312 int cmlen = CMSG_COMPAT_LEN(i * sizeof(int));
Miklos Szeredieffee6a2006-10-09 21:42:14 -0700313 err = put_user(SOL_SOCKET, &cm->cmsg_level);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 if (!err)
315 err = put_user(SCM_RIGHTS, &cm->cmsg_type);
316 if (!err)
317 err = put_user(cmlen, &cm->cmsg_len);
318 if (!err) {
319 cmlen = CMSG_COMPAT_SPACE(i * sizeof(int));
320 kmsg->msg_control += cmlen;
321 kmsg->msg_controllen -= cmlen;
322 }
323 }
324 if (i < fdnum)
325 kmsg->msg_flags |= MSG_CTRUNC;
326
327 /*
328 * All of the files that fit in the message have had their
329 * usage counts incremented, so we just free the list.
330 */
331 __scm_destroy(scm);
332}
333
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800334static int do_set_attach_filter(struct socket *sock, int level, int optname,
David S. Millerb7058842009-09-30 16:12:20 -0700335 char __user *optval, unsigned int optlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336{
337 struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +0900338 struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 compat_uptr_t ptr;
340 u16 len;
341
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))
348 return -EFAULT;
349
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800350 return sock_setsockopt(sock, level, optname, (char __user *)kfprog,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 sizeof(struct sock_fprog));
352}
353
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800354static int do_set_sock_timeout(struct socket *sock, int level,
David S. Millerb7058842009-09-30 16:12:20 -0700355 int optname, char __user *optval, unsigned int optlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356{
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700357 struct compat_timeval __user *up = (struct compat_timeval __user *)optval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 struct timeval ktime;
359 mm_segment_t old_fs;
360 int err;
361
362 if (optlen < sizeof(*up))
363 return -EINVAL;
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))
367 return -EFAULT;
368 old_fs = get_fs();
369 set_fs(KERNEL_DS);
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700370 err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 set_fs(old_fs);
372
373 return err;
374}
375
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800376static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
David S. Millerb7058842009-09-30 16:12:20 -0700377 char __user *optval, unsigned int optlen)
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800378{
379 if (optname == SO_ATTACH_FILTER)
380 return do_set_attach_filter(sock, level, optname,
381 optval, optlen);
382 if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
383 return do_set_sock_timeout(sock, level, optname, optval, optlen);
384
385 return sock_setsockopt(sock, level, optname, optval, optlen);
386}
387
Heiko Carstens361d93c2014-03-03 16:21:27 +0100388COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
389 char __user *, optval, unsigned int, optlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390{
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800391 int err;
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700392 struct socket *sock = sockfd_lookup(fd, &err);
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800393
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700394 if (sock) {
395 err = security_socket_setsockopt(sock, level, optname);
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800396 if (err) {
397 sockfd_put(sock);
398 return err;
399 }
400
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);
407 else
408 err = sock->ops->setsockopt(sock, level,
409 optname, optval, optlen);
410 sockfd_put(sock);
411 }
412 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413}
414
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800415static int do_get_sock_timeout(struct socket *sock, int level, int optname,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 char __user *optval, int __user *optlen)
417{
418 struct compat_timeval __user *up;
419 struct timeval ktime;
420 mm_segment_t old_fs;
421 int len, err;
422
423 up = (struct compat_timeval __user *) optval;
424 if (get_user(len, optlen))
425 return -EFAULT;
426 if (len < sizeof(*up))
427 return -EINVAL;
428 len = sizeof(ktime);
429 old_fs = get_fs();
430 set_fs(KERNEL_DS);
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800431 err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 set_fs(old_fs);
433
434 if (!err) {
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))
439 err = -EFAULT;
440 }
441 return err;
442}
443
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800444static int compat_sock_getsockopt(struct socket *sock, int level, int optname,
445 char __user *optval, int __user *optlen)
446{
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);
450}
451
Shaun Pereiraf0ac2612006-03-21 23:59:39 -0800452int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
453{
H. J. Luee4fa232012-02-19 17:50:46 -0800454 struct compat_timeval __user *ctv;
455 int err;
Eric Dumazetb7aa0bf2007-04-19 16:16:32 -0700456 struct timeval tv;
Shaun Pereiraf0ac2612006-03-21 23:59:39 -0800457
H. J. Luee4fa232012-02-19 17:50:46 -0800458 if (COMPAT_USE_64BIT_TIME)
459 return sock_get_timestamp(sk, userstamp);
460
461 ctv = (struct compat_timeval __user *) userstamp;
462 err = -ENOENT;
Shaun Pereiraf0ac2612006-03-21 23:59:39 -0800463 if (!sock_flag(sk, SOCK_TIMESTAMP))
Patrick Ohly20d49472009-02-12 05:03:38 +0000464 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
Eric Dumazetb7aa0bf2007-04-19 16:16:32 -0700465 tv = ktime_to_timeval(sk->sk_stamp);
466 if (tv.tv_sec == -1)
Shaun Pereiraf0ac2612006-03-21 23:59:39 -0800467 return err;
Eric Dumazetb7aa0bf2007-04-19 16:16:32 -0700468 if (tv.tv_sec == 0) {
469 sk->sk_stamp = ktime_get_real();
470 tv = ktime_to_timeval(sk->sk_stamp);
471 }
472 err = 0;
473 if (put_user(tv.tv_sec, &ctv->tv_sec) ||
474 put_user(tv.tv_usec, &ctv->tv_usec))
Shaun Pereiraf0ac2612006-03-21 23:59:39 -0800475 err = -EFAULT;
476 return err;
477}
478EXPORT_SYMBOL(compat_sock_get_timestamp);
479
Eric Dumazetae40eb12007-03-18 17:33:16 -0700480int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
481{
H. J. Luee4fa232012-02-19 17:50:46 -0800482 struct compat_timespec __user *ctv;
483 int err;
Eric Dumazetae40eb12007-03-18 17:33:16 -0700484 struct timespec ts;
485
H. J. Luee4fa232012-02-19 17:50:46 -0800486 if (COMPAT_USE_64BIT_TIME)
487 return sock_get_timestampns (sk, userstamp);
488
489 ctv = (struct compat_timespec __user *) userstamp;
490 err = -ENOENT;
Eric Dumazetae40eb12007-03-18 17:33:16 -0700491 if (!sock_flag(sk, SOCK_TIMESTAMP))
Patrick Ohly20d49472009-02-12 05:03:38 +0000492 sock_enable_timestamp(sk, SOCK_TIMESTAMP);
Eric Dumazetae40eb12007-03-18 17:33:16 -0700493 ts = ktime_to_timespec(sk->sk_stamp);
494 if (ts.tv_sec == -1)
495 return err;
496 if (ts.tv_sec == 0) {
497 sk->sk_stamp = ktime_get_real();
498 ts = ktime_to_timespec(sk->sk_stamp);
499 }
500 err = 0;
501 if (put_user(ts.tv_sec, &ctv->tv_sec) ||
502 put_user(ts.tv_nsec, &ctv->tv_nsec))
503 err = -EFAULT;
504 return err;
505}
506EXPORT_SYMBOL(compat_sock_get_timestampns);
507
Heiko Carstens361d93c2014-03-03 16:21:27 +0100508COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
509 char __user *, optval, int __user *, optlen)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510{
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800511 int err;
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700512 struct socket *sock = sockfd_lookup(fd, &err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700514 if (sock) {
515 err = security_socket_getsockopt(sock, level, optname);
Dmitry Mishin3fdadf72006-03-20 22:45:21 -0800516 if (err) {
517 sockfd_put(sock);
518 return err;
519 }
520
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);
527 else
528 err = sock->ops->getsockopt(sock, level,
529 optname, optval, optlen);
530 sockfd_put(sock);
531 }
532 return err;
533}
David L Stevensdae50292008-04-27 01:06:07 -0700534
535struct compat_group_req {
536 __u32 gr_interface;
537 struct __kernel_sockaddr_storage gr_group
538 __attribute__ ((aligned(4)));
Eric Dumazetbc105022010-06-03 03:21:52 -0700539} __packed;
David L Stevensdae50292008-04-27 01:06:07 -0700540
541struct compat_group_source_req {
542 __u32 gsr_interface;
543 struct __kernel_sockaddr_storage gsr_group
544 __attribute__ ((aligned(4)));
545 struct __kernel_sockaddr_storage gsr_source
546 __attribute__ ((aligned(4)));
Eric Dumazetbc105022010-06-03 03:21:52 -0700547} __packed;
David L Stevensdae50292008-04-27 01:06:07 -0700548
549struct compat_group_filter {
550 __u32 gf_interface;
551 struct __kernel_sockaddr_storage gf_group
552 __attribute__ ((aligned(4)));
553 __u32 gf_fmode;
554 __u32 gf_numsrc;
555 struct __kernel_sockaddr_storage gf_slist[1]
556 __attribute__ ((aligned(4)));
Eric Dumazetbc105022010-06-03 03:21:52 -0700557} __packed;
David L Stevensdae50292008-04-27 01:06:07 -0700558
David L Stevensbe666e02008-04-29 03:23:00 -0700559#define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \
560 sizeof(struct __kernel_sockaddr_storage))
561
David L Stevensdae50292008-04-27 01:06:07 -0700562
563int compat_mc_setsockopt(struct sock *sock, int level, int optname,
David S. Millerb7058842009-09-30 16:12:20 -0700564 char __user *optval, unsigned int optlen,
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700565 int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int))
David L Stevensdae50292008-04-27 01:06:07 -0700566{
567 char __user *koptval = optval;
568 int koptlen = optlen;
569
570 switch (optname) {
571 case MCAST_JOIN_GROUP:
572 case MCAST_LEAVE_GROUP:
573 {
574 struct compat_group_req __user *gr32 = (void *)optval;
575 struct group_req __user *kgr =
576 compat_alloc_user_space(sizeof(struct group_req));
577 u32 interface;
578
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)))
585 return -EFAULT;
586 koptval = (char __user *)kgr;
587 koptlen = sizeof(struct group_req);
588 break;
589 }
590 case MCAST_JOIN_SOURCE_GROUP:
591 case MCAST_LEAVE_SOURCE_GROUP:
592 case MCAST_BLOCK_SOURCE:
593 case MCAST_UNBLOCK_SOURCE:
594 {
595 struct compat_group_source_req __user *gsr32 = (void *)optval;
David L Stevensbe666e02008-04-29 03:23:00 -0700596 struct group_source_req __user *kgsr = compat_alloc_user_space(
David L Stevensdae50292008-04-27 01:06:07 -0700597 sizeof(struct group_source_req));
598 u32 interface;
599
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)))
609 return -EFAULT;
610 koptval = (char __user *)kgsr;
611 koptlen = sizeof(struct group_source_req);
612 break;
613 }
614 case MCAST_MSFILTER:
615 {
616 struct compat_group_filter __user *gf32 = (void *)optval;
David L Stevensbe666e02008-04-29 03:23:00 -0700617 struct group_filter __user *kgf;
David L Stevensdae50292008-04-27 01:06:07 -0700618 u32 interface, fmode, numsrc;
619
David L Stevensbe666e02008-04-29 03:23:00 -0700620 if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
David L Stevensdae50292008-04-27 01:06:07 -0700621 __get_user(interface, &gf32->gf_interface) ||
622 __get_user(fmode, &gf32->gf_fmode) ||
623 __get_user(numsrc, &gf32->gf_numsrc))
624 return -EFAULT;
625 koptlen = optlen + sizeof(struct group_filter) -
626 sizeof(struct compat_group_filter);
627 if (koptlen < GROUP_FILTER_SIZE(numsrc))
628 return -EINVAL;
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)) ||
David L Stevensbe666e02008-04-29 03:23:00 -0700636 (numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist,
David L Stevensdae50292008-04-27 01:06:07 -0700637 numsrc * sizeof(kgf->gf_slist[0]))))
638 return -EFAULT;
639 koptval = (char __user *)kgf;
640 break;
641 }
642
643 default:
644 break;
645 }
646 return setsockopt(sock, level, optname, koptval, koptlen);
647}
David L Stevensdae50292008-04-27 01:06:07 -0700648EXPORT_SYMBOL(compat_mc_setsockopt);
649
David L Stevens42908c62008-04-29 03:23:22 -0700650int compat_mc_getsockopt(struct sock *sock, int level, int optname,
651 char __user *optval, int __user *optlen,
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700652 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
David L Stevens42908c62008-04-29 03:23:22 -0700653{
654 struct compat_group_filter __user *gf32 = (void *)optval;
655 struct group_filter __user *kgf;
656 int __user *koptlen;
657 u32 interface, fmode, numsrc;
658 int klen, ulen, err;
659
660 if (optname != MCAST_MSFILTER)
661 return getsockopt(sock, level, optname, optval, optlen);
662
663 koptlen = compat_alloc_user_space(sizeof(*koptlen));
664 if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
665 __get_user(ulen, optlen))
666 return -EFAULT;
667
668 /* adjust len for pad */
669 klen = ulen + sizeof(*kgf) - sizeof(*gf32);
670
671 if (klen < GROUP_FILTER_SIZE(0))
672 return -EINVAL;
673
674 if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
675 __put_user(klen, koptlen))
676 return -EFAULT;
677
678 /* have to allow space for previous compat_alloc_user_space, too */
679 kgf = compat_alloc_user_space(klen+sizeof(*optlen));
680
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) ||
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700688 copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)))
David L Stevens42908c62008-04-29 03:23:22 -0700689 return -EFAULT;
690
691 err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen);
692 if (err)
693 return err;
694
695 if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
696 __get_user(klen, koptlen))
697 return -EFAULT;
698
699 ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
700
701 if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
702 __put_user(ulen, optlen))
703 return -EFAULT;
704
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))
713 return -EFAULT;
714 if (numsrc) {
715 int copylen;
716
717 klen -= GROUP_FILTER_SIZE(0);
718 copylen = numsrc * sizeof(gf32->gf_slist[0]);
719 if (copylen > klen)
720 copylen = klen;
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700721 if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen))
David L Stevens42908c62008-04-29 03:23:22 -0700722 return -EFAULT;
723 }
724 return err;
725}
David L Stevens42908c62008-04-29 03:23:22 -0700726EXPORT_SYMBOL(compat_mc_getsockopt);
727
David L Stevensdae50292008-04-27 01:06:07 -0700728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729/* Argument list sizes for compat_sys_socketcall */
730#define AL(x) ((x) * sizeof(u32))
Anton Blanchard228e5482011-05-02 20:21:35 +0000731static unsigned char nas[21] = {
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700732 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),
Anton Blanchard228e5482011-05-02 20:21:35 +0000735 AL(4), AL(5), AL(4)
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700736};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737#undef AL
738
Heiko Carstens361d93c2014-03-03 16:21:27 +0100739COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740{
Andy Lutomirskia7526eb2013-06-05 19:38:26 +0000741 if (flags & MSG_CMSG_COMPAT)
742 return -EINVAL;
743 return __sys_sendmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744}
745
Heiko Carstens361d93c2014-03-03 16:21:27 +0100746COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
747 unsigned int, vlen, unsigned int, flags)
Anton Blanchard228e5482011-05-02 20:21:35 +0000748{
Andy Lutomirskia7526eb2013-06-05 19:38:26 +0000749 if (flags & MSG_CMSG_COMPAT)
750 return -EINVAL;
Anton Blanchard228e5482011-05-02 20:21:35 +0000751 return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
752 flags | MSG_CMSG_COMPAT);
753}
754
Heiko Carstens361d93c2014-03-03 16:21:27 +0100755COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756{
Andy Lutomirskia7526eb2013-06-05 19:38:26 +0000757 if (flags & MSG_CMSG_COMPAT)
758 return -EINVAL;
759 return __sys_recvmsg(fd, (struct msghdr __user *)msg, flags | MSG_CMSG_COMPAT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760}
761
Heiko Carstens3a49a0f2014-03-04 17:09:57 +0100762COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags)
Johannes Berg1dacc762009-07-01 11:26:02 +0000763{
764 return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT);
765}
766
Heiko Carstens3a49a0f2014-03-04 17:09:57 +0100767COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len,
768 unsigned int, flags, struct sockaddr __user *, addr,
769 int __user *, addrlen)
Johannes Berg1dacc762009-07-01 11:26:02 +0000770{
771 return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen);
772}
773
Heiko Carstens361d93c2014-03-03 16:21:27 +0100774COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
775 unsigned int, vlen, unsigned int, flags,
776 struct compat_timespec __user *, timeout)
Arnaldo Carvalho de Meloa2e27252009-10-12 23:40:10 -0700777{
778 int datagrams;
779 struct timespec ktspec;
Arnaldo Carvalho de Meloa2e27252009-10-12 23:40:10 -0700780
Andy Lutomirskia7526eb2013-06-05 19:38:26 +0000781 if (flags & MSG_CMSG_COMPAT)
782 return -EINVAL;
783
Jean-Mickael Guerin5b231362009-12-01 07:52:16 +0000784 if (timeout == NULL)
785 return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
786 flags | MSG_CMSG_COMPAT, NULL);
787
PaX Team2def2ef2014-01-30 16:59:25 -0800788 if (compat_get_timespec(&ktspec, timeout))
Arnaldo Carvalho de Meloa2e27252009-10-12 23:40:10 -0700789 return -EFAULT;
790
791 datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
792 flags | MSG_CMSG_COMPAT, &ktspec);
PaX Team2def2ef2014-01-30 16:59:25 -0800793 if (datagrams > 0 && compat_put_timespec(&ktspec, timeout))
Arnaldo Carvalho de Meloa2e27252009-10-12 23:40:10 -0700794 datagrams = -EFAULT;
795
796 return datagrams;
797}
798
Heiko Carstens361d93c2014-03-03 16:21:27 +0100799COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800{
801 int ret;
802 u32 a[6];
803 u32 a0, a1;
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +0900804
Anton Blanchard228e5482011-05-02 20:21:35 +0000805 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806 return -EINVAL;
807 if (copy_from_user(a, args, nas[call]))
808 return -EFAULT;
809 a0 = a[0];
810 a1 = a[1];
YOSHIFUJI Hideaki4768fbc2007-02-09 23:25:31 +0900811
Stephen Hemmingere71a4782007-04-10 20:10:33 -0700812 switch (call) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813 case SYS_SOCKET:
814 ret = sys_socket(a0, a1, a[2]);
815 break;
816 case SYS_BIND:
817 ret = sys_bind(a0, compat_ptr(a1), a[2]);
818 break;
819 case SYS_CONNECT:
820 ret = sys_connect(a0, compat_ptr(a1), a[2]);
821 break;
822 case SYS_LISTEN:
823 ret = sys_listen(a0, a1);
824 break;
825 case SYS_ACCEPT:
Ulrich Drepperde11def2008-11-19 15:36:14 -0800826 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 break;
828 case SYS_GETSOCKNAME:
829 ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
830 break;
831 case SYS_GETPEERNAME:
832 ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
833 break;
834 case SYS_SOCKETPAIR:
835 ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
836 break;
837 case SYS_SEND:
838 ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
839 break;
840 case SYS_SENDTO:
841 ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
842 break;
843 case SYS_RECV:
Johannes Berg1dacc762009-07-01 11:26:02 +0000844 ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 break;
846 case SYS_RECVFROM:
Johannes Berg1dacc762009-07-01 11:26:02 +0000847 ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
848 compat_ptr(a[4]), compat_ptr(a[5]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 break;
850 case SYS_SHUTDOWN:
Eric Dumazetc6d409c2010-06-03 20:03:40 -0700851 ret = sys_shutdown(a0, a1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 break;
853 case SYS_SETSOCKOPT:
854 ret = compat_sys_setsockopt(a0, a1, a[2],
855 compat_ptr(a[3]), a[4]);
856 break;
857 case SYS_GETSOCKOPT:
858 ret = compat_sys_getsockopt(a0, a1, a[2],
859 compat_ptr(a[3]), compat_ptr(a[4]));
860 break;
861 case SYS_SENDMSG:
862 ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
863 break;
Anton Blanchard228e5482011-05-02 20:21:35 +0000864 case SYS_SENDMMSG:
865 ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
866 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 case SYS_RECVMSG:
868 ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
869 break;
Arnaldo Carvalho de Meloa2e27252009-10-12 23:40:10 -0700870 case SYS_RECVMMSG:
871 ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
872 compat_ptr(a[4]));
873 break;
Ulrich Drepperde11def2008-11-19 15:36:14 -0800874 case SYS_ACCEPT4:
875 ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);
Ulrich Drepperaaca0bd2008-07-23 21:29:20 -0700876 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 default:
878 ret = -EINVAL;
879 break;
880 }
881 return ret;
882}