Blame view
net/compat.c
24.3 KB
4768fbcbc [NET]: Fix whites... |
1 |
/* |
1da177e4c Linux-2.6.12-rc2 |
2 3 4 5 6 7 8 9 10 |
* 32bit Socket syscall emulation. Based on arch/sparc64/kernel/sys_sparc32.c. * * Copyright (C) 2000 VA Linux Co * Copyright (C) 2000 Don Dugger <n0ano@valinux.com> * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 2000 Hewlett-Packard Co. * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com> |
4768fbcbc [NET]: Fix whites... |
11 |
* Copyright (C) 2000,2001 Andi Kleen, SuSE Labs |
1da177e4c Linux-2.6.12-rc2 |
12 13 14 |
*/ #include <linux/kernel.h> |
5a0e3ad6a include cleanup: ... |
15 |
#include <linux/gfp.h> |
1da177e4c Linux-2.6.12-rc2 |
16 |
#include <linux/fs.h> |
1da177e4c Linux-2.6.12-rc2 |
17 18 19 20 21 22 23 |
#include <linux/types.h> #include <linux/file.h> #include <linux/icmpv6.h> #include <linux/socket.h> #include <linux/syscalls.h> #include <linux/filter.h> #include <linux/compat.h> |
1da177e4c Linux-2.6.12-rc2 |
24 |
#include <linux/security.h> |
bc3b2d7fb net: Add export.h... |
25 |
#include <linux/export.h> |
1da177e4c Linux-2.6.12-rc2 |
26 27 28 |
#include <net/scm.h> #include <net/sock.h> |
dae502954 ipv4/ipv6 compat:... |
29 30 |
#include <net/ip.h> #include <net/ipv6.h> |
1da177e4c Linux-2.6.12-rc2 |
31 32 |
#include <asm/uaccess.h> #include <net/compat.h> |
da1842849 net: switch impor... |
33 34 35 36 |
int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg, struct sockaddr __user **save_addr, struct iovec **iov) |
1da177e4c Linux-2.6.12-rc2 |
37 |
{ |
08adb7dab fold verify_iovec... |
38 |
compat_uptr_t uaddr, uiov, tmp3; |
c0371da60 put iov_iter into... |
39 |
compat_size_t nr_segs; |
08adb7dab fold verify_iovec... |
40 |
ssize_t err; |
1da177e4c Linux-2.6.12-rc2 |
41 42 |
if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) || |
08adb7dab fold verify_iovec... |
43 |
__get_user(uaddr, &umsg->msg_name) || |
1da177e4c Linux-2.6.12-rc2 |
44 |
__get_user(kmsg->msg_namelen, &umsg->msg_namelen) || |
08adb7dab fold verify_iovec... |
45 |
__get_user(uiov, &umsg->msg_iov) || |
c0371da60 put iov_iter into... |
46 |
__get_user(nr_segs, &umsg->msg_iovlen) || |
1da177e4c Linux-2.6.12-rc2 |
47 48 49 50 |
__get_user(tmp3, &umsg->msg_control) || __get_user(kmsg->msg_controllen, &umsg->msg_controllen) || __get_user(kmsg->msg_flags, &umsg->msg_flags)) return -EFAULT; |
91edd096e net: compat: Upda... |
51 52 53 54 55 56 |
if (!uaddr) kmsg->msg_namelen = 0; if (kmsg->msg_namelen < 0) return -EINVAL; |
1661bf364 net: heap overflo... |
57 |
if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) |
db31c55a6 net: clamp ->msg_... |
58 |
kmsg->msg_namelen = sizeof(struct sockaddr_storage); |
1da177e4c Linux-2.6.12-rc2 |
59 |
kmsg->msg_control = compat_ptr(tmp3); |
1da177e4c Linux-2.6.12-rc2 |
60 |
|
08adb7dab fold verify_iovec... |
61 62 |
if (save_addr) *save_addr = compat_ptr(uaddr); |
1da177e4c Linux-2.6.12-rc2 |
63 |
|
08adb7dab fold verify_iovec... |
64 65 66 67 68 |
if (uaddr && kmsg->msg_namelen) { if (!save_addr) { err = move_addr_to_kernel(compat_ptr(uaddr), kmsg->msg_namelen, kmsg->msg_name); |
e71a4783a [NET] core: white... |
69 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
70 71 |
return err; } |
40eea803c net: sendmsg: fix... |
72 |
} else { |
08adb7dab fold verify_iovec... |
73 74 |
kmsg->msg_name = NULL; kmsg->msg_namelen = 0; |
40eea803c net: sendmsg: fix... |
75 |
} |
1da177e4c Linux-2.6.12-rc2 |
76 |
|
c0371da60 put iov_iter into... |
77 |
if (nr_segs > UIO_MAXIOV) |
084493200 {compat_,}verify_... |
78 |
return -EMSGSIZE; |
0345f9313 net: socket: add ... |
79 |
kmsg->msg_iocb = NULL; |
da1842849 net: switch impor... |
80 81 82 |
return compat_import_iovec(save_addr ? READ : WRITE, compat_ptr(uiov), nr_segs, UIO_FASTIOV, iov, &kmsg->msg_iter); |
1da177e4c Linux-2.6.12-rc2 |
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 |
} /* Bleech... */ #define CMSG_COMPAT_ALIGN(len) ALIGN((len), sizeof(s32)) #define CMSG_COMPAT_DATA(cmsg) \ ((void __user *)((char __user *)(cmsg) + CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)))) #define CMSG_COMPAT_SPACE(len) \ (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + CMSG_COMPAT_ALIGN(len)) #define CMSG_COMPAT_LEN(len) \ (CMSG_COMPAT_ALIGN(sizeof(struct compat_cmsghdr)) + (len)) #define CMSG_COMPAT_FIRSTHDR(msg) \ (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \ (struct compat_cmsghdr __user *)((msg)->msg_control) : \ (struct compat_cmsghdr __user *)NULL) #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \ ((ucmlen) >= sizeof(struct compat_cmsghdr) && \ (ucmlen) <= (unsigned long) \ ((mhdr)->msg_controllen - \ ((char *)(ucmsg) - (char *)(mhdr)->msg_control))) static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg, struct compat_cmsghdr __user *cmsg, int cmsg_len) { char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len); if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) > msg->msg_controllen) return NULL; return (struct compat_cmsghdr __user *)ptr; } /* There is a lot of hair here because the alignment rules (and * thus placement) of cmsg headers and length are different for * 32-bit apps. -DaveM */ |
8920e8f94 [PATCH] Fix 32bit... |
120 |
int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk, |
1da177e4c Linux-2.6.12-rc2 |
121 122 123 124 125 126 |
unsigned char *stackbuf, int stackbuf_size) { struct compat_cmsghdr __user *ucmsg; struct cmsghdr *kcmsg, *kcmsg_base; compat_size_t ucmlen; __kernel_size_t kcmlen, tmp; |
8920e8f94 [PATCH] Fix 32bit... |
127 |
int err = -EFAULT; |
1da177e4c Linux-2.6.12-rc2 |
128 129 130 131 |
kcmlen = 0; kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf; ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg); |
e71a4783a [NET] core: white... |
132 133 |
while (ucmsg != NULL) { if (get_user(ucmlen, &ucmsg->cmsg_len)) |
1da177e4c Linux-2.6.12-rc2 |
134 135 136 137 138 139 140 141 |
return -EFAULT; /* Catch bogons. */ if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg)) return -EINVAL; tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) + CMSG_ALIGN(sizeof(struct cmsghdr))); |
8920e8f94 [PATCH] Fix 32bit... |
142 |
tmp = CMSG_ALIGN(tmp); |
1da177e4c Linux-2.6.12-rc2 |
143 144 145 |
kcmlen += tmp; ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen); } |
e71a4783a [NET] core: white... |
146 |
if (kcmlen == 0) |
1da177e4c Linux-2.6.12-rc2 |
147 148 149 150 151 152 153 |
return -EINVAL; /* The kcmlen holds the 64-bit version of the control length. * It may not be modified as we do not stick it into the kmsg * until we have successfully copied over all of the data * from the user. */ |
8920e8f94 [PATCH] Fix 32bit... |
154 155 156 |
if (kcmlen > stackbuf_size) kcmsg_base = kcmsg = sock_kmalloc(sk, kcmlen, GFP_KERNEL); if (kcmsg == NULL) |
1da177e4c Linux-2.6.12-rc2 |
157 158 159 160 161 |
return -ENOBUFS; /* Now copy them over neatly. */ memset(kcmsg, 0, kcmlen); ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg); |
e71a4783a [NET] core: white... |
162 |
while (ucmsg != NULL) { |
8920e8f94 [PATCH] Fix 32bit... |
163 164 165 166 |
if (__get_user(ucmlen, &ucmsg->cmsg_len)) goto Efault; if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg)) goto Einval; |
1da177e4c Linux-2.6.12-rc2 |
167 168 |
tmp = ((ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))) + CMSG_ALIGN(sizeof(struct cmsghdr))); |
8920e8f94 [PATCH] Fix 32bit... |
169 170 |
if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp)) goto Einval; |
1da177e4c Linux-2.6.12-rc2 |
171 |
kcmsg->cmsg_len = tmp; |
8920e8f94 [PATCH] Fix 32bit... |
172 173 174 175 176 177 178 |
tmp = CMSG_ALIGN(tmp); if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) || __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) || copy_from_user(CMSG_DATA(kcmsg), CMSG_COMPAT_DATA(ucmsg), (ucmlen - CMSG_COMPAT_ALIGN(sizeof(*ucmsg))))) goto Efault; |
1da177e4c Linux-2.6.12-rc2 |
179 180 |
/* Advance. */ |
8920e8f94 [PATCH] Fix 32bit... |
181 |
kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp); |
1da177e4c Linux-2.6.12-rc2 |
182 183 184 185 186 187 188 |
ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen); } /* Ok, looks like we made it. Hook it up and return success. */ kmsg->msg_control = kcmsg_base; kmsg->msg_controllen = kcmlen; return 0; |
8920e8f94 [PATCH] Fix 32bit... |
189 190 191 192 193 194 |
Einval: err = -EINVAL; Efault: if (kcmsg_base != (struct cmsghdr *)stackbuf) sock_kfree_s(sk, kcmsg_base, kcmlen); return err; |
1da177e4c Linux-2.6.12-rc2 |
195 196 197 198 |
} int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) { |
1da177e4c Linux-2.6.12-rc2 |
199 200 |
struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; struct compat_cmsghdr cmhdr; |
818810472 net: Fix referenc... |
201 202 |
struct compat_timeval ctv; struct compat_timespec cts[3]; |
1da177e4c Linux-2.6.12-rc2 |
203 |
int cmlen; |
e71a4783a [NET] core: white... |
204 |
if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) { |
1da177e4c Linux-2.6.12-rc2 |
205 206 207 |
kmsg->msg_flags |= MSG_CTRUNC; return 0; /* XXX: return error? check spec. */ } |
ee4fa23c4 compat: Use COMPA... |
208 |
if (!COMPAT_USE_64BIT_TIME) { |
ee4fa23c4 compat: Use COMPA... |
209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 |
if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { struct timeval *tv = (struct timeval *)data; ctv.tv_sec = tv->tv_sec; ctv.tv_usec = tv->tv_usec; data = &ctv; len = sizeof(ctv); } if (level == SOL_SOCKET && (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { int count = type == SCM_TIMESTAMPNS ? 1 : 3; int i; struct timespec *ts = (struct timespec *)data; for (i = 0; i < count; i++) { cts[i].tv_sec = ts[i].tv_sec; cts[i].tv_nsec = ts[i].tv_nsec; } data = &cts; len = sizeof(cts[0]) * count; |
20d494735 net: socket infra... |
227 |
} |
4768fbcbc [NET]: Fix whites... |
228 |
} |
1da177e4c Linux-2.6.12-rc2 |
229 |
cmlen = CMSG_COMPAT_LEN(len); |
e71a4783a [NET] core: white... |
230 |
if (kmsg->msg_controllen < cmlen) { |
1da177e4c Linux-2.6.12-rc2 |
231 232 233 234 235 236 |
kmsg->msg_flags |= MSG_CTRUNC; cmlen = kmsg->msg_controllen; } cmhdr.cmsg_level = level; cmhdr.cmsg_type = type; cmhdr.cmsg_len = cmlen; |
e71a4783a [NET] core: white... |
237 |
if (copy_to_user(cm, &cmhdr, sizeof cmhdr)) |
1da177e4c Linux-2.6.12-rc2 |
238 |
return -EFAULT; |
e71a4783a [NET] core: white... |
239 |
if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr))) |
1da177e4c Linux-2.6.12-rc2 |
240 241 |
return -EFAULT; cmlen = CMSG_COMPAT_SPACE(len); |
1ac70e7ad [NET]: Fix functi... |
242 243 |
if (kmsg->msg_controllen < cmlen) cmlen = kmsg->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 |
kmsg->msg_control += cmlen; kmsg->msg_controllen -= cmlen; return 0; } void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm) { struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int); int fdnum = scm->fp->count; struct file **fp = scm->fp->fp; int __user *cmfptr; int err = 0, i; if (fdnum < fdmax) fdmax = fdnum; for (i = 0, cmfptr = (int __user *) CMSG_COMPAT_DATA(cm); i < fdmax; i++, cmfptr++) { int new_fd; err = security_file_receive(fp[i]); if (err) break; |
4a19542e5 O_CLOEXEC for SCM... |
266 267 |
err = get_unused_fd_flags(MSG_CMSG_CLOEXEC & kmsg->msg_flags ? O_CLOEXEC : 0); |
1da177e4c Linux-2.6.12-rc2 |
268 269 270 271 272 273 274 275 276 |
if (err < 0) break; new_fd = err; err = put_user(new_fd, cmfptr); if (err) { put_unused_fd(new_fd); break; } /* Bump the usage count and install the file. */ |
cb0942b81 make get_file() r... |
277 |
fd_install(new_fd, get_file(fp[i])); |
1da177e4c Linux-2.6.12-rc2 |
278 279 280 281 |
} if (i > 0) { int cmlen = CMSG_COMPAT_LEN(i * sizeof(int)); |
effee6a00 [NET]: File descr... |
282 |
err = put_user(SOL_SOCKET, &cm->cmsg_level); |
1da177e4c Linux-2.6.12-rc2 |
283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 |
if (!err) err = put_user(SCM_RIGHTS, &cm->cmsg_type); if (!err) err = put_user(cmlen, &cm->cmsg_len); if (!err) { cmlen = CMSG_COMPAT_SPACE(i * sizeof(int)); kmsg->msg_control += cmlen; kmsg->msg_controllen -= cmlen; } } if (i < fdnum) kmsg->msg_flags |= MSG_CTRUNC; /* * All of the files that fit in the message have had their * usage counts incremented, so we just free the list. */ __scm_destroy(scm); } |
719c44d34 packet: compat su... |
302 303 |
/* allocate a 64-bit sock_fprog on the user stack for duration of syscall. */ struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval) |
1da177e4c Linux-2.6.12-rc2 |
304 305 |
{ struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval; |
4768fbcbc [NET]: Fix whites... |
306 |
struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog)); |
1da177e4c Linux-2.6.12-rc2 |
307 308 309 310 311 312 313 314 315 |
compat_uptr_t ptr; u16 len; if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) || !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) || __get_user(len, &fprog32->len) || __get_user(ptr, &fprog32->filter) || __put_user(len, &kfprog->len) || __put_user(compat_ptr(ptr), &kfprog->filter)) |
719c44d34 packet: compat su... |
316 317 318 319 320 321 322 323 324 325 326 327 328 |
return NULL; return kfprog; } EXPORT_SYMBOL_GPL(get_compat_bpf_fprog); static int do_set_attach_filter(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) { struct sock_fprog __user *kfprog; kfprog = get_compat_bpf_fprog(optval); if (!kfprog) |
1da177e4c Linux-2.6.12-rc2 |
329 |
return -EFAULT; |
3fdadf7d2 [NET]: {get|set}s... |
330 |
return sock_setsockopt(sock, level, optname, (char __user *)kfprog, |
1da177e4c Linux-2.6.12-rc2 |
331 332 |
sizeof(struct sock_fprog)); } |
3fdadf7d2 [NET]: {get|set}s... |
333 |
static int do_set_sock_timeout(struct socket *sock, int level, |
b7058842c net: Make setsock... |
334 |
int optname, char __user *optval, unsigned int optlen) |
1da177e4c Linux-2.6.12-rc2 |
335 |
{ |
c6d409cfd From abbffa2aa9bd... |
336 |
struct compat_timeval __user *up = (struct compat_timeval __user *)optval; |
1da177e4c Linux-2.6.12-rc2 |
337 338 339 340 341 342 343 344 345 346 347 348 |
struct timeval ktime; mm_segment_t old_fs; int err; if (optlen < sizeof(*up)) return -EINVAL; if (!access_ok(VERIFY_READ, up, sizeof(*up)) || __get_user(ktime.tv_sec, &up->tv_sec) || __get_user(ktime.tv_usec, &up->tv_usec)) return -EFAULT; old_fs = get_fs(); set_fs(KERNEL_DS); |
c6d409cfd From abbffa2aa9bd... |
349 |
err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime)); |
1da177e4c Linux-2.6.12-rc2 |
350 351 352 353 |
set_fs(old_fs); return err; } |
3fdadf7d2 [NET]: {get|set}s... |
354 |
static int compat_sock_setsockopt(struct socket *sock, int level, int optname, |
b7058842c net: Make setsock... |
355 |
char __user *optval, unsigned int optlen) |
3fdadf7d2 [NET]: {get|set}s... |
356 |
{ |
195759884 soreuseport: add ... |
357 358 |
if (optname == SO_ATTACH_FILTER || optname == SO_ATTACH_REUSEPORT_CBPF) |
3fdadf7d2 [NET]: {get|set}s... |
359 360 361 362 363 364 365 |
return do_set_attach_filter(sock, level, optname, optval, optlen); if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO) return do_set_sock_timeout(sock, level, optname, optval, optlen); return sock_setsockopt(sock, level, optname, optval, optlen); } |
361d93c46 net/compat: conve... |
366 367 |
COMPAT_SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname, char __user *, optval, unsigned int, optlen) |
1da177e4c Linux-2.6.12-rc2 |
368 |
{ |
3fdadf7d2 [NET]: {get|set}s... |
369 |
int err; |
c6d409cfd From abbffa2aa9bd... |
370 |
struct socket *sock = sockfd_lookup(fd, &err); |
3fdadf7d2 [NET]: {get|set}s... |
371 |
|
c6d409cfd From abbffa2aa9bd... |
372 373 |
if (sock) { err = security_socket_setsockopt(sock, level, optname); |
3fdadf7d2 [NET]: {get|set}s... |
374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 |
if (err) { sockfd_put(sock); return err; } if (level == SOL_SOCKET) err = compat_sock_setsockopt(sock, level, optname, optval, optlen); else if (sock->ops->compat_setsockopt) err = sock->ops->compat_setsockopt(sock, level, optname, optval, optlen); else err = sock->ops->setsockopt(sock, level, optname, optval, optlen); sockfd_put(sock); } return err; |
1da177e4c Linux-2.6.12-rc2 |
391 |
} |
3fdadf7d2 [NET]: {get|set}s... |
392 |
static int do_get_sock_timeout(struct socket *sock, int level, int optname, |
1da177e4c Linux-2.6.12-rc2 |
393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 |
char __user *optval, int __user *optlen) { struct compat_timeval __user *up; struct timeval ktime; mm_segment_t old_fs; int len, err; up = (struct compat_timeval __user *) optval; if (get_user(len, optlen)) return -EFAULT; if (len < sizeof(*up)) return -EINVAL; len = sizeof(ktime); old_fs = get_fs(); set_fs(KERNEL_DS); |
3fdadf7d2 [NET]: {get|set}s... |
408 |
err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len); |
1da177e4c Linux-2.6.12-rc2 |
409 410 411 412 413 414 415 416 417 418 419 |
set_fs(old_fs); if (!err) { if (put_user(sizeof(*up), optlen) || !access_ok(VERIFY_WRITE, up, sizeof(*up)) || __put_user(ktime.tv_sec, &up->tv_sec) || __put_user(ktime.tv_usec, &up->tv_usec)) err = -EFAULT; } return err; } |
3fdadf7d2 [NET]: {get|set}s... |
420 |
static int compat_sock_getsockopt(struct socket *sock, int level, int optname, |
1da177e4c Linux-2.6.12-rc2 |
421 422 |
char __user *optval, int __user *optlen) { |
3fdadf7d2 [NET]: {get|set}s... |
423 424 425 |
if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO) return do_get_sock_timeout(sock, level, optname, optval, optlen); return sock_getsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
426 |
} |
f0ac26144 [NET]: socket tim... |
427 428 |
int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) { |
ee4fa23c4 compat: Use COMPA... |
429 430 |
struct compat_timeval __user *ctv; int err; |
b7aa0bf70 [NET]: convert ne... |
431 |
struct timeval tv; |
f0ac26144 [NET]: socket tim... |
432 |
|
ee4fa23c4 compat: Use COMPA... |
433 434 435 436 437 |
if (COMPAT_USE_64BIT_TIME) return sock_get_timestamp(sk, userstamp); ctv = (struct compat_timeval __user *) userstamp; err = -ENOENT; |
f0ac26144 [NET]: socket tim... |
438 |
if (!sock_flag(sk, SOCK_TIMESTAMP)) |
20d494735 net: socket infra... |
439 |
sock_enable_timestamp(sk, SOCK_TIMESTAMP); |
b7aa0bf70 [NET]: convert ne... |
440 441 |
tv = ktime_to_timeval(sk->sk_stamp); if (tv.tv_sec == -1) |
f0ac26144 [NET]: socket tim... |
442 |
return err; |
b7aa0bf70 [NET]: convert ne... |
443 444 445 446 447 448 449 |
if (tv.tv_sec == 0) { sk->sk_stamp = ktime_get_real(); tv = ktime_to_timeval(sk->sk_stamp); } err = 0; if (put_user(tv.tv_sec, &ctv->tv_sec) || put_user(tv.tv_usec, &ctv->tv_usec)) |
f0ac26144 [NET]: socket tim... |
450 451 452 453 |
err = -EFAULT; return err; } EXPORT_SYMBOL(compat_sock_get_timestamp); |
ae40eb1ef [NET]: Introduce ... |
454 455 |
int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) { |
ee4fa23c4 compat: Use COMPA... |
456 457 |
struct compat_timespec __user *ctv; int err; |
ae40eb1ef [NET]: Introduce ... |
458 |
struct timespec ts; |
ee4fa23c4 compat: Use COMPA... |
459 460 461 462 463 |
if (COMPAT_USE_64BIT_TIME) return sock_get_timestampns (sk, userstamp); ctv = (struct compat_timespec __user *) userstamp; err = -ENOENT; |
ae40eb1ef [NET]: Introduce ... |
464 |
if (!sock_flag(sk, SOCK_TIMESTAMP)) |
20d494735 net: socket infra... |
465 |
sock_enable_timestamp(sk, SOCK_TIMESTAMP); |
ae40eb1ef [NET]: Introduce ... |
466 467 468 469 470 471 472 473 474 475 476 477 478 479 |
ts = ktime_to_timespec(sk->sk_stamp); if (ts.tv_sec == -1) return err; if (ts.tv_sec == 0) { sk->sk_stamp = ktime_get_real(); ts = ktime_to_timespec(sk->sk_stamp); } err = 0; if (put_user(ts.tv_sec, &ctv->tv_sec) || put_user(ts.tv_nsec, &ctv->tv_nsec)) err = -EFAULT; return err; } EXPORT_SYMBOL(compat_sock_get_timestampns); |
361d93c46 net/compat: conve... |
480 481 |
COMPAT_SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, char __user *, optval, int __user *, optlen) |
3fdadf7d2 [NET]: {get|set}s... |
482 483 |
{ int err; |
c6d409cfd From abbffa2aa9bd... |
484 |
struct socket *sock = sockfd_lookup(fd, &err); |
3fdadf7d2 [NET]: {get|set}s... |
485 |
|
c6d409cfd From abbffa2aa9bd... |
486 487 |
if (sock) { err = security_socket_getsockopt(sock, level, optname); |
3fdadf7d2 [NET]: {get|set}s... |
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 |
if (err) { sockfd_put(sock); return err; } if (level == SOL_SOCKET) err = compat_sock_getsockopt(sock, level, optname, optval, optlen); else if (sock->ops->compat_getsockopt) err = sock->ops->compat_getsockopt(sock, level, optname, optval, optlen); else err = sock->ops->getsockopt(sock, level, optname, optval, optlen); sockfd_put(sock); } return err; } |
dae502954 ipv4/ipv6 compat:... |
506 507 508 509 |
struct compat_group_req { __u32 gr_interface; struct __kernel_sockaddr_storage gr_group |
e099b2d9d net: __aligned(si... |
510 |
__aligned(4); |
bc10502db net: use __packed... |
511 |
} __packed; |
dae502954 ipv4/ipv6 compat:... |
512 513 514 515 |
struct compat_group_source_req { __u32 gsr_interface; struct __kernel_sockaddr_storage gsr_group |
e099b2d9d net: __aligned(si... |
516 |
__aligned(4); |
dae502954 ipv4/ipv6 compat:... |
517 |
struct __kernel_sockaddr_storage gsr_source |
e099b2d9d net: __aligned(si... |
518 |
__aligned(4); |
bc10502db net: use __packed... |
519 |
} __packed; |
dae502954 ipv4/ipv6 compat:... |
520 521 522 523 |
struct compat_group_filter { __u32 gf_interface; struct __kernel_sockaddr_storage gf_group |
e099b2d9d net: __aligned(si... |
524 |
__aligned(4); |
dae502954 ipv4/ipv6 compat:... |
525 526 527 |
__u32 gf_fmode; __u32 gf_numsrc; struct __kernel_sockaddr_storage gf_slist[1] |
e099b2d9d net: __aligned(si... |
528 |
__aligned(4); |
bc10502db net: use __packed... |
529 |
} __packed; |
dae502954 ipv4/ipv6 compat:... |
530 |
|
be666e0a1 net: Several clea... |
531 532 |
#define __COMPAT_GF0_SIZE (sizeof(struct compat_group_filter) - \ sizeof(struct __kernel_sockaddr_storage)) |
dae502954 ipv4/ipv6 compat:... |
533 534 |
int compat_mc_setsockopt(struct sock *sock, int level, int optname, |
b7058842c net: Make setsock... |
535 |
char __user *optval, unsigned int optlen, |
c6d409cfd From abbffa2aa9bd... |
536 |
int (*setsockopt)(struct sock *, int, int, char __user *, unsigned int)) |
dae502954 ipv4/ipv6 compat:... |
537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 |
{ char __user *koptval = optval; int koptlen = optlen; switch (optname) { case MCAST_JOIN_GROUP: case MCAST_LEAVE_GROUP: { struct compat_group_req __user *gr32 = (void *)optval; struct group_req __user *kgr = compat_alloc_user_space(sizeof(struct group_req)); u32 interface; if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) || !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) || __get_user(interface, &gr32->gr_interface) || __put_user(interface, &kgr->gr_interface) || copy_in_user(&kgr->gr_group, &gr32->gr_group, sizeof(kgr->gr_group))) return -EFAULT; koptval = (char __user *)kgr; koptlen = sizeof(struct group_req); break; } case MCAST_JOIN_SOURCE_GROUP: case MCAST_LEAVE_SOURCE_GROUP: case MCAST_BLOCK_SOURCE: case MCAST_UNBLOCK_SOURCE: { struct compat_group_source_req __user *gsr32 = (void *)optval; |
be666e0a1 net: Several clea... |
567 |
struct group_source_req __user *kgsr = compat_alloc_user_space( |
dae502954 ipv4/ipv6 compat:... |
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 |
sizeof(struct group_source_req)); u32 interface; if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) || !access_ok(VERIFY_WRITE, kgsr, sizeof(struct group_source_req)) || __get_user(interface, &gsr32->gsr_interface) || __put_user(interface, &kgsr->gsr_interface) || copy_in_user(&kgsr->gsr_group, &gsr32->gsr_group, sizeof(kgsr->gsr_group)) || copy_in_user(&kgsr->gsr_source, &gsr32->gsr_source, sizeof(kgsr->gsr_source))) return -EFAULT; koptval = (char __user *)kgsr; koptlen = sizeof(struct group_source_req); break; } case MCAST_MSFILTER: { struct compat_group_filter __user *gf32 = (void *)optval; |
be666e0a1 net: Several clea... |
588 |
struct group_filter __user *kgf; |
dae502954 ipv4/ipv6 compat:... |
589 |
u32 interface, fmode, numsrc; |
be666e0a1 net: Several clea... |
590 |
if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) || |
dae502954 ipv4/ipv6 compat:... |
591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 |
__get_user(interface, &gf32->gf_interface) || __get_user(fmode, &gf32->gf_fmode) || __get_user(numsrc, &gf32->gf_numsrc)) return -EFAULT; koptlen = optlen + sizeof(struct group_filter) - sizeof(struct compat_group_filter); if (koptlen < GROUP_FILTER_SIZE(numsrc)) return -EINVAL; kgf = compat_alloc_user_space(koptlen); if (!access_ok(VERIFY_WRITE, kgf, koptlen) || __put_user(interface, &kgf->gf_interface) || __put_user(fmode, &kgf->gf_fmode) || __put_user(numsrc, &kgf->gf_numsrc) || copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group)) || |
be666e0a1 net: Several clea... |
606 |
(numsrc && copy_in_user(kgf->gf_slist, gf32->gf_slist, |
dae502954 ipv4/ipv6 compat:... |
607 608 609 610 611 612 613 614 615 616 617 |
numsrc * sizeof(kgf->gf_slist[0])))) return -EFAULT; koptval = (char __user *)kgf; break; } default: break; } return setsockopt(sock, level, optname, koptval, koptlen); } |
dae502954 ipv4/ipv6 compat:... |
618 |
EXPORT_SYMBOL(compat_mc_setsockopt); |
42908c69f net: Add compat s... |
619 620 |
int compat_mc_getsockopt(struct sock *sock, int level, int optname, char __user *optval, int __user *optlen, |
c6d409cfd From abbffa2aa9bd... |
621 |
int (*getsockopt)(struct sock *, int, int, char __user *, int __user *)) |
42908c69f net: Add compat s... |
622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 |
{ struct compat_group_filter __user *gf32 = (void *)optval; struct group_filter __user *kgf; int __user *koptlen; u32 interface, fmode, numsrc; int klen, ulen, err; if (optname != MCAST_MSFILTER) return getsockopt(sock, level, optname, optval, optlen); koptlen = compat_alloc_user_space(sizeof(*koptlen)); if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) || __get_user(ulen, optlen)) return -EFAULT; /* adjust len for pad */ klen = ulen + sizeof(*kgf) - sizeof(*gf32); if (klen < GROUP_FILTER_SIZE(0)) return -EINVAL; if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) || __put_user(klen, koptlen)) return -EFAULT; /* have to allow space for previous compat_alloc_user_space, too */ kgf = compat_alloc_user_space(klen+sizeof(*optlen)); if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) || __get_user(interface, &gf32->gf_interface) || __get_user(fmode, &gf32->gf_fmode) || __get_user(numsrc, &gf32->gf_numsrc) || __put_user(interface, &kgf->gf_interface) || __put_user(fmode, &kgf->gf_fmode) || __put_user(numsrc, &kgf->gf_numsrc) || |
c6d409cfd From abbffa2aa9bd... |
657 |
copy_in_user(&kgf->gf_group, &gf32->gf_group, sizeof(kgf->gf_group))) |
42908c69f net: Add compat s... |
658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 |
return -EFAULT; err = getsockopt(sock, level, optname, (char __user *)kgf, koptlen); if (err) return err; if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) || __get_user(klen, koptlen)) return -EFAULT; ulen = klen - (sizeof(*kgf)-sizeof(*gf32)); if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) || __put_user(ulen, optlen)) return -EFAULT; if (!access_ok(VERIFY_READ, kgf, klen) || !access_ok(VERIFY_WRITE, gf32, ulen) || __get_user(interface, &kgf->gf_interface) || __get_user(fmode, &kgf->gf_fmode) || __get_user(numsrc, &kgf->gf_numsrc) || __put_user(interface, &gf32->gf_interface) || __put_user(fmode, &gf32->gf_fmode) || __put_user(numsrc, &gf32->gf_numsrc)) return -EFAULT; if (numsrc) { int copylen; klen -= GROUP_FILTER_SIZE(0); copylen = numsrc * sizeof(gf32->gf_slist[0]); if (copylen > klen) copylen = klen; |
c6d409cfd From abbffa2aa9bd... |
690 |
if (copy_in_user(gf32->gf_slist, kgf->gf_slist, copylen)) |
42908c69f net: Add compat s... |
691 692 693 694 |
return -EFAULT; } return err; } |
42908c69f net: Add compat s... |
695 |
EXPORT_SYMBOL(compat_mc_getsockopt); |
dae502954 ipv4/ipv6 compat:... |
696 |
|
1da177e4c Linux-2.6.12-rc2 |
697 698 |
/* Argument list sizes for compat_sys_socketcall */ #define AL(x) ((x) * sizeof(u32)) |
228e548e6 net: Add sendmmsg... |
699 |
static unsigned char nas[21] = { |
c6d409cfd From abbffa2aa9bd... |
700 701 702 |
AL(0), AL(3), AL(3), AL(3), AL(2), AL(3), AL(3), AL(3), AL(4), AL(4), AL(4), AL(6), AL(6), AL(2), AL(5), AL(5), AL(3), AL(3), |
228e548e6 net: Add sendmmsg... |
703 |
AL(4), AL(5), AL(4) |
c6d409cfd From abbffa2aa9bd... |
704 |
}; |
1da177e4c Linux-2.6.12-rc2 |
705 |
#undef AL |
361d93c46 net/compat: conve... |
706 |
COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
707 |
{ |
666547ff5 separate kernel- ... |
708 |
return __sys_sendmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT); |
1da177e4c Linux-2.6.12-rc2 |
709 |
} |
361d93c46 net/compat: conve... |
710 711 |
COMPAT_SYSCALL_DEFINE4(sendmmsg, int, fd, struct compat_mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags) |
228e548e6 net: Add sendmmsg... |
712 713 714 715 |
{ return __sys_sendmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, flags | MSG_CMSG_COMPAT); } |
361d93c46 net/compat: conve... |
716 |
COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg, unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
717 |
{ |
666547ff5 separate kernel- ... |
718 |
return __sys_recvmsg(fd, (struct user_msghdr __user *)msg, flags | MSG_CMSG_COMPAT); |
1da177e4c Linux-2.6.12-rc2 |
719 |
} |
3a49a0f71 net/compat: conve... |
720 |
COMPAT_SYSCALL_DEFINE4(recv, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags) |
1dacc76d0 net/compat/wext: ... |
721 722 723 |
{ return sys_recv(fd, buf, len, flags | MSG_CMSG_COMPAT); } |
3a49a0f71 net/compat: conve... |
724 725 726 |
COMPAT_SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, buf, compat_size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int __user *, addrlen) |
1dacc76d0 net/compat/wext: ... |
727 728 729 |
{ return sys_recvfrom(fd, buf, len, flags | MSG_CMSG_COMPAT, addr, addrlen); } |
361d93c46 net/compat: conve... |
730 731 732 |
COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags, struct compat_timespec __user *, timeout) |
a2e272554 net: Introduce re... |
733 734 735 |
{ int datagrams; struct timespec ktspec; |
a2e272554 net: Introduce re... |
736 |
|
5b23136bc net: compat_sys_r... |
737 738 739 |
if (timeout == NULL) return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, flags | MSG_CMSG_COMPAT, NULL); |
2def2ef2a x86, x32: Correct... |
740 |
if (compat_get_timespec(&ktspec, timeout)) |
a2e272554 net: Introduce re... |
741 742 743 744 |
return -EFAULT; datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, flags | MSG_CMSG_COMPAT, &ktspec); |
2def2ef2a x86, x32: Correct... |
745 |
if (datagrams > 0 && compat_put_timespec(&ktspec, timeout)) |
a2e272554 net: Introduce re... |
746 747 748 749 |
datagrams = -EFAULT; return datagrams; } |
361d93c46 net/compat: conve... |
750 |
COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args) |
1da177e4c Linux-2.6.12-rc2 |
751 752 753 754 |
{ int ret; u32 a[6]; u32 a0, a1; |
4768fbcbc [NET]: Fix whites... |
755 |
|
228e548e6 net: Add sendmmsg... |
756 |
if (call < SYS_SOCKET || call > SYS_SENDMMSG) |
1da177e4c Linux-2.6.12-rc2 |
757 758 759 760 761 |
return -EINVAL; if (copy_from_user(a, args, nas[call])) return -EFAULT; a0 = a[0]; a1 = a[1]; |
4768fbcbc [NET]: Fix whites... |
762 |
|
e71a4783a [NET] core: white... |
763 |
switch (call) { |
1da177e4c Linux-2.6.12-rc2 |
764 765 766 767 768 769 770 771 772 773 774 775 776 |
case SYS_SOCKET: ret = sys_socket(a0, a1, a[2]); break; case SYS_BIND: ret = sys_bind(a0, compat_ptr(a1), a[2]); break; case SYS_CONNECT: ret = sys_connect(a0, compat_ptr(a1), a[2]); break; case SYS_LISTEN: ret = sys_listen(a0, a1); break; case SYS_ACCEPT: |
de11defeb reintroduce accept4 |
777 |
ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0); |
1da177e4c Linux-2.6.12-rc2 |
778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 |
break; case SYS_GETSOCKNAME: ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2])); break; case SYS_GETPEERNAME: ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2])); break; case SYS_SOCKETPAIR: ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3])); break; case SYS_SEND: ret = sys_send(a0, compat_ptr(a1), a[2], a[3]); break; case SYS_SENDTO: ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]); break; case SYS_RECV: |
1dacc76d0 net/compat/wext: ... |
795 |
ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]); |
1da177e4c Linux-2.6.12-rc2 |
796 797 |
break; case SYS_RECVFROM: |
1dacc76d0 net/compat/wext: ... |
798 799 |
ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), compat_ptr(a[5])); |
1da177e4c Linux-2.6.12-rc2 |
800 801 |
break; case SYS_SHUTDOWN: |
c6d409cfd From abbffa2aa9bd... |
802 |
ret = sys_shutdown(a0, a1); |
1da177e4c Linux-2.6.12-rc2 |
803 804 805 806 807 808 809 810 811 812 813 814 |
break; case SYS_SETSOCKOPT: ret = compat_sys_setsockopt(a0, a1, a[2], compat_ptr(a[3]), a[4]); break; case SYS_GETSOCKOPT: ret = compat_sys_getsockopt(a0, a1, a[2], compat_ptr(a[3]), compat_ptr(a[4])); break; case SYS_SENDMSG: ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]); break; |
228e548e6 net: Add sendmmsg... |
815 816 817 |
case SYS_SENDMMSG: ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]); break; |
1da177e4c Linux-2.6.12-rc2 |
818 819 820 |
case SYS_RECVMSG: ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]); break; |
a2e272554 net: Introduce re... |
821 822 823 824 |
case SYS_RECVMMSG: ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4])); break; |
de11defeb reintroduce accept4 |
825 826 |
case SYS_ACCEPT4: ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]); |
aaca0bdca flag parameters: ... |
827 |
break; |
1da177e4c Linux-2.6.12-rc2 |
828 829 830 831 832 833 |
default: ret = -EINVAL; break; } return ret; } |