1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_SOCKET_H_ 30 #define _SYS_SOCKET_H_ 31 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 #include <linux/socket.h> 35 36 #include <asm/fcntl.h> 37 #include <asm/socket.h> 38 #include <linux/sockios.h> 39 #include <linux/uio.h> 40 #include <linux/types.h> 41 #include <linux/compiler.h> 42 43 #include <bits/sa_family_t.h> 44 45 __BEGIN_DECLS 46 47 #define sockaddr_storage __kernel_sockaddr_storage 48 49 struct timespec; 50 51 #ifdef __mips__ 52 #define SOCK_DGRAM 1 53 #define SOCK_STREAM 2 54 #else 55 #define SOCK_STREAM 1 56 #define SOCK_DGRAM 2 57 #endif 58 #define SOCK_RAW 3 59 #define SOCK_RDM 4 60 #define SOCK_SEQPACKET 5 61 #define SOCK_DCCP 6 62 #define SOCK_PACKET 10 63 64 #define SOCK_CLOEXEC O_CLOEXEC 65 #define SOCK_NONBLOCK O_NONBLOCK 66 67 enum { 68 SHUT_RD = 0, 69 #define SHUT_RD SHUT_RD 70 SHUT_WR, 71 #define SHUT_WR SHUT_WR 72 SHUT_RDWR 73 #define SHUT_RDWR SHUT_RDWR 74 }; 75 76 struct sockaddr { 77 sa_family_t sa_family; 78 char sa_data[14]; 79 }; 80 81 struct linger { 82 int l_onoff; 83 int l_linger; 84 }; 85 86 struct msghdr { 87 void* msg_name; 88 socklen_t msg_namelen; 89 struct iovec* msg_iov; 90 size_t msg_iovlen; 91 void* msg_control; 92 size_t msg_controllen; 93 int msg_flags; 94 }; 95 96 struct mmsghdr { 97 struct msghdr msg_hdr; 98 unsigned int msg_len; 99 }; 100 101 struct cmsghdr { 102 size_t cmsg_len; 103 int cmsg_level; 104 int cmsg_type; 105 }; 106 107 #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr((mhdr), (cmsg)) 108 #define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) ) 109 #define CMSG_DATA(cmsg) (((unsigned char*)(cmsg) + CMSG_ALIGN(sizeof(struct cmsghdr)))) 110 #define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len)) 111 #define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len)) 112 #define CMSG_FIRSTHDR(msg) \ 113 ((msg)->msg_controllen >= sizeof(struct cmsghdr) \ 114 ? (struct cmsghdr*) (msg)->msg_control : (struct cmsghdr*) NULL) 115 #define CMSG_OK(mhdr, cmsg) ((cmsg)->cmsg_len >= sizeof(struct cmsghdr) && (cmsg)->cmsg_len <= (unsigned long) ((mhdr)->msg_controllen - ((char*)(cmsg) - (char*)(mhdr)->msg_control))) 116 117 #if __ANDROID_API__ >= __ANDROID_API_L__ 118 struct cmsghdr* __cmsg_nxthdr(struct msghdr*, struct cmsghdr*) __INTRODUCED_IN(21); 119 #else 120 /* TODO(danalbert): Move this into libandroid_support. */ 121 static inline struct cmsghdr* __cmsg_nxthdr(struct msghdr* msg, struct cmsghdr* cmsg) { 122 struct cmsghdr* ptr = 123 __BIONIC_CAST(reinterpret_cast, struct cmsghdr*, 124 (__BIONIC_CAST(reinterpret_cast, char*, cmsg) + CMSG_ALIGN(cmsg->cmsg_len))); 125 size_t len = __BIONIC_CAST(reinterpret_cast, char*, ptr + 1) - 126 __BIONIC_CAST(reinterpret_cast, char*, msg->msg_control); 127 if (len > msg->msg_controllen) { 128 return NULL; 129 } 130 return ptr; 131 } 132 #endif /* __ANDROID_API__ >= __ANDROID_API_L__ */ 133 134 #define SCM_RIGHTS 0x01 135 #define SCM_CREDENTIALS 0x02 136 #define SCM_SECURITY 0x03 137 138 struct ucred { 139 pid_t pid; 140 uid_t uid; 141 gid_t gid; 142 }; 143 144 #define AF_UNSPEC 0 145 #define AF_UNIX 1 146 #define AF_LOCAL 1 147 #define AF_INET 2 148 #define AF_AX25 3 149 #define AF_IPX 4 150 #define AF_APPLETALK 5 151 #define AF_NETROM 6 152 #define AF_BRIDGE 7 153 #define AF_ATMPVC 8 154 #define AF_X25 9 155 #define AF_INET6 10 156 #define AF_ROSE 11 157 #define AF_DECnet 12 158 #define AF_NETBEUI 13 159 #define AF_SECURITY 14 160 #define AF_KEY 15 161 #define AF_NETLINK 16 162 #define AF_ROUTE AF_NETLINK 163 #define AF_PACKET 17 164 #define AF_ASH 18 165 #define AF_ECONET 19 166 #define AF_ATMSVC 20 167 #define AF_RDS 21 168 #define AF_SNA 22 169 #define AF_IRDA 23 170 #define AF_PPPOX 24 171 #define AF_WANPIPE 25 172 #define AF_LLC 26 173 #define AF_CAN 29 174 #define AF_TIPC 30 175 #define AF_BLUETOOTH 31 176 #define AF_IUCV 32 177 #define AF_RXRPC 33 178 #define AF_ISDN 34 179 #define AF_PHONET 35 180 #define AF_IEEE802154 36 181 #define AF_CAIF 37 182 #define AF_ALG 38 183 #define AF_NFC 39 184 #define AF_VSOCK 40 185 #define AF_KCM 41 186 #define AF_QIPCRTR 42 187 #define AF_MAX 43 188 189 #define PF_UNSPEC AF_UNSPEC 190 #define PF_UNIX AF_UNIX 191 #define PF_LOCAL AF_LOCAL 192 #define PF_INET AF_INET 193 #define PF_AX25 AF_AX25 194 #define PF_IPX AF_IPX 195 #define PF_APPLETALK AF_APPLETALK 196 #define PF_NETROM AF_NETROM 197 #define PF_BRIDGE AF_BRIDGE 198 #define PF_ATMPVC AF_ATMPVC 199 #define PF_X25 AF_X25 200 #define PF_INET6 AF_INET6 201 #define PF_ROSE AF_ROSE 202 #define PF_DECnet AF_DECnet 203 #define PF_NETBEUI AF_NETBEUI 204 #define PF_SECURITY AF_SECURITY 205 #define PF_KEY AF_KEY 206 #define PF_NETLINK AF_NETLINK 207 #define PF_ROUTE AF_ROUTE 208 #define PF_PACKET AF_PACKET 209 #define PF_ASH AF_ASH 210 #define PF_ECONET AF_ECONET 211 #define PF_ATMSVC AF_ATMSVC 212 #define PF_RDS AF_RDS 213 #define PF_SNA AF_SNA 214 #define PF_IRDA AF_IRDA 215 #define PF_PPPOX AF_PPPOX 216 #define PF_WANPIPE AF_WANPIPE 217 #define PF_LLC AF_LLC 218 #define PF_CAN AF_CAN 219 #define PF_TIPC AF_TIPC 220 #define PF_BLUETOOTH AF_BLUETOOTH 221 #define PF_IUCV AF_IUCV 222 #define PF_RXRPC AF_RXRPC 223 #define PF_ISDN AF_ISDN 224 #define PF_PHONET AF_PHONET 225 #define PF_IEEE802154 AF_IEEE802154 226 #define PF_CAIF AF_CAIF 227 #define PF_ALG AF_ALG 228 #define PF_NFC AF_NFC 229 #define PF_VSOCK AF_VSOCK 230 #define PF_KCM AF_KCM 231 #define PF_QIPCRTR AF_QIPCRTR 232 #define PF_MAX AF_MAX 233 234 #define SOMAXCONN 128 235 236 #define MSG_OOB 1 237 #define MSG_PEEK 2 238 #define MSG_DONTROUTE 4 239 #define MSG_TRYHARD 4 240 #define MSG_CTRUNC 8 241 #define MSG_PROBE 0x10 242 #define MSG_TRUNC 0x20 243 #define MSG_DONTWAIT 0x40 244 #define MSG_EOR 0x80 245 #define MSG_WAITALL 0x100 246 #define MSG_FIN 0x200 247 #define MSG_SYN 0x400 248 #define MSG_CONFIRM 0x800 249 #define MSG_RST 0x1000 250 #define MSG_ERRQUEUE 0x2000 251 #define MSG_NOSIGNAL 0x4000 252 #define MSG_MORE 0x8000 253 #define MSG_WAITFORONE 0x10000 254 #define MSG_BATCH 0x40000 255 #define MSG_FASTOPEN 0x20000000 256 #define MSG_CMSG_CLOEXEC 0x40000000 257 #define MSG_EOF MSG_FIN 258 #define MSG_CMSG_COMPAT 0 259 260 #define SOL_IP 0 261 #define SOL_TCP 6 262 #define SOL_UDP 17 263 #define SOL_IPV6 41 264 #define SOL_ICMPV6 58 265 #define SOL_SCTP 132 266 #define SOL_RAW 255 267 #define SOL_IPX 256 268 #define SOL_AX25 257 269 #define SOL_ATALK 258 270 #define SOL_NETROM 259 271 #define SOL_ROSE 260 272 #define SOL_DECNET 261 273 #define SOL_X25 262 274 #define SOL_PACKET 263 275 #define SOL_ATM 264 276 #define SOL_AAL 265 277 #define SOL_IRDA 266 278 #define SOL_NETBEUI 267 279 #define SOL_LLC 268 280 #define SOL_DCCP 269 281 #define SOL_NETLINK 270 282 #define SOL_TIPC 271 283 #define SOL_RXRPC 272 284 #define SOL_PPPOL2TP 273 285 #define SOL_BLUETOOTH 274 286 #define SOL_PNPIPE 275 287 #define SOL_RDS 276 288 #define SOL_IUCV 277 289 #define SOL_CAIF 278 290 #define SOL_ALG 279 291 #define SOL_NFC 280 292 #define SOL_KCM 281 293 294 #define IPX_TYPE 1 295 296 #ifdef __i386__ 297 # define __socketcall extern __attribute__((__cdecl__)) 298 #else 299 # define __socketcall extern 300 #endif 301 302 __socketcall int accept(int, struct sockaddr*, socklen_t*); 303 __socketcall int accept4(int, struct sockaddr*, socklen_t*, int) __INTRODUCED_IN(21); 304 __socketcall int bind(int, const struct sockaddr*, socklen_t); 305 __socketcall int connect(int, const struct sockaddr*, socklen_t); 306 __socketcall int getpeername(int, struct sockaddr*, socklen_t*); 307 __socketcall int getsockname(int, struct sockaddr*, socklen_t*); 308 __socketcall int getsockopt(int, int, int, void*, socklen_t*); 309 __socketcall int listen(int, int); 310 __socketcall int recvmmsg(int, struct mmsghdr*, unsigned int, int, const struct timespec*) 311 __INTRODUCED_IN(21); 312 __socketcall ssize_t recvmsg(int, struct msghdr*, int); 313 __socketcall int sendmmsg(int, const struct mmsghdr*, unsigned int, int) __INTRODUCED_IN(21); 314 __socketcall ssize_t sendmsg(int, const struct msghdr*, int); 315 __socketcall int setsockopt(int, int, int, const void*, socklen_t); 316 __socketcall int shutdown(int, int); 317 __socketcall int socket(int, int, int); 318 __socketcall int socketpair(int, int, int, int*); 319 320 ssize_t recv(int, void*, size_t, int) __overloadable __RENAME_CLANG(recv); 321 ssize_t send(int, const void*, size_t, int) __overloadable __RENAME_CLANG(send); 322 323 __socketcall ssize_t sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t) 324 __overloadable __RENAME_CLANG(sendto); 325 __socketcall ssize_t recvfrom(int, void*, size_t, int, struct sockaddr*, 326 socklen_t*) __overloadable __RENAME_CLANG(recvfrom); 327 328 extern ssize_t __sendto_chk(int, const void*, size_t, size_t, int, const struct sockaddr*, 329 socklen_t) __INTRODUCED_IN(26); 330 ssize_t __recvfrom_chk(int, void*, size_t, size_t, int, struct sockaddr*, 331 socklen_t*) __INTRODUCED_IN(21); 332 333 #if defined(__BIONIC_FORTIFY) 334 335 #define __recvfrom_bad_size "recvfrom called with size bigger than buffer" 336 #define __sendto_bad_size "sendto called with size bigger than buffer" 337 #if defined(__clang__) 338 #if __ANDROID_API__ >= __ANDROID_API_N__ 339 __BIONIC_ERROR_FUNCTION_VISIBILITY 340 ssize_t recvfrom(int fd, void* const buf __pass_object_size0, size_t len, 341 int flags, struct sockaddr* src_addr, socklen_t* addr_len) 342 __overloadable 343 __enable_if(__bos(buf) != __BIONIC_FORTIFY_UNKNOWN_SIZE && 344 __bos(buf) < len, "selected when the buffer is too small") 345 __errorattr(__recvfrom_bad_size); 346 347 __BIONIC_FORTIFY_INLINE 348 ssize_t recvfrom(int fd, void* const buf __pass_object_size0, size_t len, 349 int flags, struct sockaddr* src_addr, socklen_t* addr_len) 350 __overloadable { 351 size_t bos = __bos0(buf); 352 353 if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 354 return __call_bypassing_fortify(recvfrom)(fd, buf, len, flags, src_addr, 355 addr_len); 356 } 357 358 return __recvfrom_chk(fd, buf, len, bos, flags, src_addr, addr_len); 359 } 360 #endif /* __ANDROID_API__ >= __ANDROID_API_N__ */ 361 362 #if __ANDROID_API__ >= __ANDROID_API_N_MR1__ 363 __BIONIC_ERROR_FUNCTION_VISIBILITY 364 ssize_t sendto(int fd, const void* buf, size_t len, int flags, 365 const struct sockaddr* dest_addr, socklen_t addr_len) 366 __overloadable 367 __enable_if(__bos0(buf) != __BIONIC_FORTIFY_UNKNOWN_SIZE && 368 __bos0(buf) < len, "selected when the buffer is too small") 369 __errorattr(__sendto_bad_size); 370 371 __BIONIC_FORTIFY_INLINE 372 ssize_t sendto(int fd, const void* const buf __pass_object_size0, size_t len, 373 int flags, const struct sockaddr* dest_addr, socklen_t addr_len) 374 __overloadable { 375 size_t bos = __bos0(buf); 376 377 if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 378 return __call_bypassing_fortify(sendto)(fd, buf, len, flags, dest_addr, 379 addr_len); 380 } 381 382 return __sendto_chk(fd, buf, len, bos, flags, dest_addr, addr_len); 383 } 384 385 __BIONIC_ERROR_FUNCTION_VISIBILITY 386 ssize_t send(int socket, const void* buf, size_t len, int flags) 387 __overloadable 388 __enable_if(__bos0(buf) != __BIONIC_FORTIFY_UNKNOWN_SIZE && 389 __bos0(buf) < len, "selected when the buffer is too small") 390 __errorattr("send called with size bigger than buffer"); 391 #endif /* __ANDROID_API__ >= __ANDROID_API_N_MR1__ */ 392 393 #else /* defined(__clang__) */ 394 ssize_t __recvfrom_real(int, void*, size_t, int, struct sockaddr*, socklen_t*) __RENAME(recvfrom); 395 __errordecl(__recvfrom_error, __recvfrom_bad_size); 396 397 extern ssize_t __sendto_real(int, const void*, size_t, int, const struct sockaddr*, socklen_t) 398 __RENAME(sendto); 399 __errordecl(__sendto_error, __sendto_bad_size); 400 401 #if __ANDROID_API__ >= __ANDROID_API_N__ 402 __BIONIC_FORTIFY_INLINE 403 ssize_t recvfrom(int fd, void* buf, size_t len, int flags, 404 struct sockaddr* src_addr, socklen_t* addr_len) { 405 size_t bos = __bos0(buf); 406 407 if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 408 return __recvfrom_real(fd, buf, len, flags, src_addr, addr_len); 409 } 410 411 if (__builtin_constant_p(len) && (len <= bos)) { 412 return __recvfrom_real(fd, buf, len, flags, src_addr, addr_len); 413 } 414 415 if (__builtin_constant_p(len) && (len > bos)) { 416 __recvfrom_error(); 417 } 418 419 return __recvfrom_chk(fd, buf, len, bos, flags, src_addr, addr_len); 420 } 421 #endif /* __ANDROID_API__ >= __ANDROID_API_N__ */ 422 423 #if __ANDROID_API__ >= __ANDROID_API_N_MR1__ 424 __BIONIC_FORTIFY_INLINE 425 ssize_t sendto(int fd, const void* buf, size_t len, int flags, 426 const struct sockaddr* dest_addr, socklen_t addr_len) { 427 size_t bos = __bos0(buf); 428 429 if (bos == __BIONIC_FORTIFY_UNKNOWN_SIZE) { 430 return __sendto_real(fd, buf, len, flags, dest_addr, addr_len); 431 } 432 433 if (__builtin_constant_p(len) && (len <= bos)) { 434 return __sendto_real(fd, buf, len, flags, dest_addr, addr_len); 435 } 436 437 if (__builtin_constant_p(len) && (len > bos)) { 438 __sendto_error(); 439 } 440 441 return __sendto_chk(fd, buf, len, bos, flags, dest_addr, addr_len); 442 } 443 #endif /* __ANDROID_API__ >= __ANDROID_API_N_MR1__ */ 444 445 #endif /* defined(__clang__) */ 446 #undef __recvfrom_bad_size 447 #undef __sendto_bad_size 448 449 __BIONIC_FORTIFY_INLINE 450 ssize_t recv(int socket, void* const buf __pass_object_size0, size_t len, 451 int flags) __overloadable { 452 return recvfrom(socket, buf, len, flags, NULL, 0); 453 } 454 455 __BIONIC_FORTIFY_INLINE 456 ssize_t send(int socket, const void* const buf __pass_object_size0, size_t len, int flags) 457 __overloadable { 458 return sendto(socket, buf, len, flags, NULL, 0); 459 } 460 461 #endif /* __BIONIC_FORTIFY */ 462 463 #undef __socketcall 464 465 __END_DECLS 466 467 #endif /* _SYS_SOCKET_H */ 468
