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 49struct 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 67enum { 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 76struct sockaddr { 77 sa_family_t sa_family; 78 char sa_data[14]; 79}; 80 81struct linger { 82 int l_onoff; 83 int l_linger; 84}; 85 86struct 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 96struct mmsghdr { 97 struct msghdr msg_hdr; 98 unsigned int msg_len; 99}; 100 101struct 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__ 118struct cmsghdr* __cmsg_nxthdr(struct msghdr*, struct cmsghdr*) __INTRODUCED_IN(21); 119#else 120/* TODO(danalbert): Move this into libandroid_support. */ 121static 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 138struct 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 320ssize_t recv(int, void*, size_t, int) __overloadable __RENAME_CLANG(recv); 321ssize_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 328extern ssize_t __sendto_chk(int, const void*, size_t, size_t, int, const struct sockaddr*, 329 socklen_t) __INTRODUCED_IN(26); 330ssize_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 340ssize_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 348ssize_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 364ssize_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 372ssize_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 386ssize_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__) */ 394ssize_t __recvfrom_real(int, void*, size_t, int, struct sockaddr*, socklen_t*) __RENAME(recvfrom); 395__errordecl(__recvfrom_error, __recvfrom_bad_size); 396 397extern 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 403ssize_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 425ssize_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 450ssize_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 456ssize_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