1 /** 2 * @file 3 * Socket API (to be used from non-TCPIP threads) 4 */ 5 6 /* 7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without modification, 11 * are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 30 * OF SUCH DAMAGE. 31 * 32 * This file is part of the lwIP TCP/IP stack. 33 * 34 * Author: Adam Dunkels <[email protected]> 35 * 36 */ 37 38 39 #ifndef LWIP_HDR_SOCKETS_H 40 #define LWIP_HDR_SOCKETS_H 41 42 #include "lwip/opt.h" 43 44 #if LWIP_SOCKET_EXTERNAL_HEADERS 45 #include LWIP_SOCKET_EXTERNAL_HEADER_SOCKETS_H 46 #else /* LWIP_SOCKET_EXTERNAL_HEADERS */ 47 48 #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ 49 50 #include "lwip/ip_addr.h" 51 #include "lwip/netif.h" 52 #include "lwip/err.h" 53 #include "lwip/inet.h" 54 #include "lwip/errno.h" 55 56 #include <string.h> 57 58 #ifdef __cplusplus 59 extern "C" { 60 #endif 61 62 /* If your port already typedef's sa_family_t, define SA_FAMILY_T_DEFINED 63 to prevent this code from redefining it. */ 64 #if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED) 65 typedef u8_t sa_family_t; 66 #endif 67 /* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED 68 to prevent this code from redefining it. */ 69 #if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED) 70 typedef u16_t in_port_t; 71 #endif 72 73 #if LWIP_IPV4 74 /* members are in network byte order */ 75 struct sockaddr_in { 76 u8_t sin_len; 77 sa_family_t sin_family; 78 in_port_t sin_port; 79 struct in_addr sin_addr; 80 #define SIN_ZERO_LEN 8 81 char sin_zero[SIN_ZERO_LEN]; 82 }; 83 #endif /* LWIP_IPV4 */ 84 85 #if LWIP_IPV6 86 struct sockaddr_in6 { 87 u8_t sin6_len; /* length of this structure */ 88 sa_family_t sin6_family; /* AF_INET6 */ 89 in_port_t sin6_port; /* Transport layer port # */ 90 u32_t sin6_flowinfo; /* IPv6 flow information */ 91 struct in6_addr sin6_addr; /* IPv6 address */ 92 u32_t sin6_scope_id; /* Set of interfaces for scope */ 93 }; 94 #endif /* LWIP_IPV6 */ 95 96 struct sockaddr { 97 u8_t sa_len; 98 sa_family_t sa_family; 99 char sa_data[14]; 100 }; 101 102 struct sockaddr_storage { 103 u8_t s2_len; 104 sa_family_t ss_family; 105 char s2_data1[2]; 106 u32_t s2_data2[3]; 107 #if LWIP_IPV6 108 u32_t s2_data3[3]; 109 #endif /* LWIP_IPV6 */ 110 }; 111 112 /* If your port already typedef's socklen_t, define SOCKLEN_T_DEFINED 113 to prevent this code from redefining it. */ 114 #if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED) 115 typedef u32_t socklen_t; 116 #endif 117 118 #if !defined IOV_MAX 119 #define IOV_MAX 0xFFFF 120 #elif IOV_MAX > 0xFFFF 121 #error "IOV_MAX larger than supported by LwIP" 122 #endif /* IOV_MAX */ 123 124 #if !defined(iovec) 125 struct iovec { 126 void *iov_base; 127 size_t iov_len; 128 }; 129 #endif 130 131 struct msghdr { 132 void *msg_name; 133 socklen_t msg_namelen; 134 struct iovec *msg_iov; 135 int msg_iovlen; 136 void *msg_control; 137 socklen_t msg_controllen; 138 int msg_flags; 139 }; 140 141 /* struct msghdr->msg_flags bit field values */ 142 #define MSG_TRUNC 0x04 143 #define MSG_CTRUNC 0x08 144 145 /* RFC 3542, Section 20: Ancillary Data */ 146 struct cmsghdr { 147 socklen_t cmsg_len; /* number of bytes, including header */ 148 int cmsg_level; /* originating protocol */ 149 int cmsg_type; /* protocol-specific type */ 150 }; 151 /* Data section follows header and possible padding, typically referred to as 152 unsigned char cmsg_data[]; */ 153 154 /* cmsg header/data alignment. NOTE: we align to native word size (double word 155 size on 16-bit arch) so structures are not placed at an unaligned address. 156 16-bit arch needs double word to ensure 32-bit alignment because socklen_t 157 could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment 158 will need to increase long long */ 159 #define ALIGN_H(size) (((size) + sizeof(long) - 1U) & ~(sizeof(long)-1U)) 160 #define ALIGN_D(size) ALIGN_H(size) 161 162 #define CMSG_FIRSTHDR(mhdr) \ 163 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 164 (struct cmsghdr *)(mhdr)->msg_control : \ 165 (struct cmsghdr *)NULL) 166 167 #define CMSG_NXTHDR(mhdr, cmsg) \ 168 (((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \ 169 (((u8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) \ 170 + ALIGN_D(sizeof(struct cmsghdr)) > \ 171 (u8_t *)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \ 172 (struct cmsghdr *)NULL : \ 173 (struct cmsghdr *)((void*)((u8_t *)(cmsg) + \ 174 ALIGN_H((cmsg)->cmsg_len))))) 175 176 #define CMSG_DATA(cmsg) ((void*)((u8_t *)(cmsg) + \ 177 ALIGN_D(sizeof(struct cmsghdr)))) 178 179 #define CMSG_SPACE(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ 180 ALIGN_H(length)) 181 182 #define CMSG_LEN(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ 183 length) 184 185 /* Set socket options argument */ 186 #define IFNAMSIZ NETIF_NAMESIZE 187 struct ifreq { 188 char ifr_name[IFNAMSIZ]; /* Interface name */ 189 }; 190 191 /* Socket protocol types (TCP/UDP/RAW) */ 192 #define SOCK_STREAM 1 193 #define SOCK_DGRAM 2 194 #define SOCK_RAW 3 195 196 /* 197 * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c) 198 */ 199 #define SO_REUSEADDR 0x0004 /* Allow local address reuse */ 200 #define SO_KEEPALIVE 0x0008 /* keep connections alive */ 201 #define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ 202 203 204 /* 205 * Additional options, not kept in so_options. 206 */ 207 #define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */ 208 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 209 #define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */ 210 #define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */ 211 #define SO_LINGER 0x0080 /* linger on close if data present */ 212 #define SO_DONTLINGER ((int)(~SO_LINGER)) 213 #define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */ 214 #define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */ 215 #define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */ 216 #define SO_RCVBUF 0x1002 /* receive buffer size */ 217 #define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */ 218 #define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */ 219 #define SO_SNDTIMEO 0x1005 /* send timeout */ 220 #define SO_RCVTIMEO 0x1006 /* receive timeout */ 221 #define SO_ERROR 0x1007 /* get error status and clear */ 222 #define SO_TYPE 0x1008 /* get socket type */ 223 #define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */ 224 #define SO_NO_CHECK 0x100a /* don't create UDP checksum */ 225 #define SO_BINDTODEVICE 0x100b /* bind to device */ 226 227 /* 228 * Structure used for manipulating linger option. 229 */ 230 struct linger { 231 int l_onoff; /* option on/off */ 232 int l_linger; /* linger time in seconds */ 233 }; 234 235 /* 236 * Level number for (get/set)sockopt() to apply to socket itself. 237 */ 238 #define SOL_SOCKET 0xfff /* options for socket level */ 239 240 241 #define AF_UNSPEC 0 242 #define AF_INET 2 243 #if LWIP_IPV6 244 #define AF_INET6 10 245 #else /* LWIP_IPV6 */ 246 #define AF_INET6 AF_UNSPEC 247 #endif /* LWIP_IPV6 */ 248 #define PF_INET AF_INET 249 #define PF_INET6 AF_INET6 250 #define PF_UNSPEC AF_UNSPEC 251 252 #define IPPROTO_IP 0 253 #define IPPROTO_ICMP 1 254 #define IPPROTO_TCP 6 255 #define IPPROTO_UDP 17 256 #if LWIP_IPV6 257 #define IPPROTO_IPV6 41 258 #define IPPROTO_ICMPV6 58 259 #endif /* LWIP_IPV6 */ 260 #define IPPROTO_UDPLITE 136 261 #define IPPROTO_RAW 255 262 263 /* Flags we can use with send and recv. */ 264 #define MSG_PEEK 0x01 /* Peeks at an incoming message */ 265 #define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */ 266 #define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */ 267 #define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */ 268 #define MSG_MORE 0x10 /* Sender will send more */ 269 #define MSG_NOSIGNAL 0x20 /* Uninmplemented: Requests not to send the SIGPIPE signal if an attempt to send is made on a stream-oriented socket that is no longer connected. */ 270 271 272 /* 273 * Options for level IPPROTO_IP 274 */ 275 #define IP_TOS 1 276 #define IP_TTL 2 277 #define IP_PKTINFO 8 278 279 #if LWIP_TCP 280 /* 281 * Options for level IPPROTO_TCP 282 */ 283 #define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ 284 #define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */ 285 #define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */ 286 #define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */ 287 #define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */ 288 #endif /* LWIP_TCP */ 289 290 #if LWIP_IPV6 291 /* 292 * Options for level IPPROTO_IPV6 293 */ 294 #define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */ 295 #define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */ 296 #endif /* LWIP_IPV6 */ 297 298 #if LWIP_UDP && LWIP_UDPLITE 299 /* 300 * Options for level IPPROTO_UDPLITE 301 */ 302 #define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */ 303 #define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */ 304 #endif /* LWIP_UDP && LWIP_UDPLITE*/ 305 306 307 #if LWIP_MULTICAST_TX_OPTIONS 308 /* 309 * Options and types for UDP multicast traffic handling 310 */ 311 #define IP_MULTICAST_TTL 5 312 #define IP_MULTICAST_IF 6 313 #define IP_MULTICAST_LOOP 7 314 #endif /* LWIP_MULTICAST_TX_OPTIONS */ 315 316 #if LWIP_IGMP 317 /* 318 * Options and types related to multicast membership 319 */ 320 #define IP_ADD_MEMBERSHIP 3 321 #define IP_DROP_MEMBERSHIP 4 322 323 typedef struct ip_mreq { 324 struct in_addr imr_multiaddr; /* IP multicast address of group */ 325 struct in_addr imr_interface; /* local IP address of interface */ 326 } ip_mreq; 327 #endif /* LWIP_IGMP */ 328 329 #if LWIP_IPV4 330 struct in_pktinfo { 331 unsigned int ipi_ifindex; /* Interface index */ 332 struct in_addr ipi_addr; /* Destination (from header) address */ 333 }; 334 #endif /* LWIP_IPV4 */ 335 336 #if LWIP_IPV6_MLD 337 /* 338 * Options and types related to IPv6 multicast membership 339 */ 340 #define IPV6_JOIN_GROUP 12 341 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP 342 #define IPV6_LEAVE_GROUP 13 343 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP 344 345 typedef struct ipv6_mreq { 346 struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */ 347 unsigned int ipv6mr_interface; /* interface index, or 0 */ 348 } ipv6_mreq; 349 #endif /* LWIP_IPV6_MLD */ 350 351 /* 352 * The Type of Service provides an indication of the abstract 353 * parameters of the quality of service desired. These parameters are 354 * to be used to guide the selection of the actual service parameters 355 * when transmitting a datagram through a particular network. Several 356 * networks offer service precedence, which somehow treats high 357 * precedence traffic as more important than other traffic (generally 358 * by accepting only traffic above a certain precedence at time of high 359 * load). The major choice is a three way tradeoff between low-delay, 360 * high-reliability, and high-throughput. 361 * The use of the Delay, Throughput, and Reliability indications may 362 * increase the cost (in some sense) of the service. In many networks 363 * better performance for one of these parameters is coupled with worse 364 * performance on another. Except for very unusual cases at most two 365 * of these three indications should be set. 366 */ 367 #define IPTOS_TOS_MASK 0x1E 368 #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK) 369 #define IPTOS_LOWDELAY 0x10 370 #define IPTOS_THROUGHPUT 0x08 371 #define IPTOS_RELIABILITY 0x04 372 #define IPTOS_LOWCOST 0x02 373 #define IPTOS_MINCOST IPTOS_LOWCOST 374 375 /* 376 * The Network Control precedence designation is intended to be used 377 * within a network only. The actual use and control of that 378 * designation is up to each network. The Internetwork Control 379 * designation is intended for use by gateway control originators only. 380 * If the actual use of these precedence designations is of concern to 381 * a particular network, it is the responsibility of that network to 382 * control the access to, and use of, those precedence designations. 383 */ 384 #define IPTOS_PREC_MASK 0xe0 385 #define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK) 386 #define IPTOS_PREC_NETCONTROL 0xe0 387 #define IPTOS_PREC_INTERNETCONTROL 0xc0 388 #define IPTOS_PREC_CRITIC_ECP 0xa0 389 #define IPTOS_PREC_FLASHOVERRIDE 0x80 390 #define IPTOS_PREC_FLASH 0x60 391 #define IPTOS_PREC_IMMEDIATE 0x40 392 #define IPTOS_PREC_PRIORITY 0x20 393 #define IPTOS_PREC_ROUTINE 0x00 394 395 396 /* 397 * Commands for ioctlsocket(), taken from the BSD file fcntl.h. 398 * lwip_ioctl only supports FIONREAD and FIONBIO, for now 399 * 400 * Ioctl's have the command encoded in the lower word, 401 * and the size of any in or out parameters in the upper 402 * word. The high 2 bits of the upper word are used 403 * to encode the in/out status of the parameter; for now 404 * we restrict parameters to at most 128 bytes. 405 */ 406 #if !defined(FIONREAD) || !defined(FIONBIO) 407 #define IOCPARM_MASK 0x7fU /* parameters must be < 128 bytes */ 408 #define IOC_VOID 0x20000000UL /* no parameters */ 409 #define IOC_OUT 0x40000000UL /* copy out parameters */ 410 #define IOC_IN 0x80000000UL /* copy in parameters */ 411 #define IOC_INOUT (IOC_IN|IOC_OUT) 412 /* 0x20000000 distinguishes new & 413 old ioctl's */ 414 #define _IO(x,y) ((long)(IOC_VOID|((x)<<8)|(y))) 415 416 #define _IOR(x,y,t) ((long)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) 417 418 #define _IOW(x,y,t) ((long)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) 419 #endif /* !defined(FIONREAD) || !defined(FIONBIO) */ 420 421 #ifndef FIONREAD 422 #define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */ 423 #endif 424 #ifndef FIONBIO 425 #define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */ 426 #endif 427 428 /* Socket I/O Controls: unimplemented */ 429 #ifndef SIOCSHIWAT 430 #define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */ 431 #define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */ 432 #define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */ 433 #define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */ 434 #define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */ 435 #endif 436 437 /* commands for fnctl */ 438 #ifndef F_GETFL 439 #define F_GETFL 3 440 #endif 441 #ifndef F_SETFL 442 #define F_SETFL 4 443 #endif 444 445 /* File status flags and file access modes for fnctl, 446 these are bits in an int. */ 447 #ifndef O_NONBLOCK 448 #define O_NONBLOCK 1 /* nonblocking I/O */ 449 #endif 450 #ifndef O_NDELAY 451 #define O_NDELAY O_NONBLOCK /* same as O_NONBLOCK, for compatibility */ 452 #endif 453 #ifndef O_RDONLY 454 #define O_RDONLY 2 455 #endif 456 #ifndef O_WRONLY 457 #define O_WRONLY 4 458 #endif 459 #ifndef O_RDWR 460 #define O_RDWR (O_RDONLY|O_WRONLY) 461 #endif 462 463 #ifndef SHUT_RD 464 #define SHUT_RD 0 465 #define SHUT_WR 1 466 #define SHUT_RDWR 2 467 #endif 468 469 /* FD_SET used for lwip_select */ 470 #ifndef FD_SET 471 #undef FD_SETSIZE 472 /* Make FD_SETSIZE match NUM_SOCKETS in socket.c */ 473 #define FD_SETSIZE MEMP_NUM_NETCONN 474 #define LWIP_SELECT_MAXNFDS (FD_SETSIZE + LWIP_SOCKET_OFFSET) 475 #define FDSETSAFESET(n, code) do { \ 476 if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \ 477 code; }} while(0) 478 #define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\ 479 (code) : 0) 480 #define FD_SET(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] | (1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) 481 #define FD_CLR(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & ~(1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) 482 #define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))) 483 #define FD_ZERO(p) memset((void*)(p), 0, sizeof(*(p))) 484 485 typedef struct fd_set 486 { 487 unsigned char fd_bits [(FD_SETSIZE+7)/8]; 488 } fd_set; 489 490 #elif FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN) 491 #error "external FD_SETSIZE too small for number of sockets" 492 #else 493 #define LWIP_SELECT_MAXNFDS FD_SETSIZE 494 #endif /* FD_SET */ 495 496 /* poll-related defines and types */ 497 /* @todo: find a better way to guard the definition of these defines and types if already defined */ 498 #if !defined(POLLIN) && !defined(POLLOUT) 499 #define POLLIN 0x1 500 #define POLLOUT 0x2 501 #define POLLERR 0x4 502 #define POLLNVAL 0x8 503 /* Below values are unimplemented */ 504 #define POLLRDNORM 0x10 505 #define POLLRDBAND 0x20 506 #define POLLPRI 0x40 507 #define POLLWRNORM 0x80 508 #define POLLWRBAND 0x100 509 #define POLLHUP 0x200 510 typedef unsigned int nfds_t; 511 struct pollfd 512 { 513 int fd; 514 short events; 515 short revents; 516 }; 517 #endif 518 519 /** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided 520 * by your system, set this to 0 and include <sys/time.h> in cc.h */ 521 #ifndef LWIP_TIMEVAL_PRIVATE 522 #define LWIP_TIMEVAL_PRIVATE 1 523 #endif 524 525 #if LWIP_TIMEVAL_PRIVATE 526 struct timeval { 527 long tv_sec; /* seconds */ 528 long tv_usec; /* and microseconds */ 529 }; 530 #endif /* LWIP_TIMEVAL_PRIVATE */ 531 532 #define lwip_socket_init() /* Compatibility define, no init needed. */ 533 void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */ 534 void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */ 535 536 #if LWIP_COMPAT_SOCKETS == 2 537 /* This helps code parsers/code completion by not having the COMPAT functions as defines */ 538 #define lwip_accept accept 539 #define lwip_bind bind 540 #define lwip_shutdown shutdown 541 #define lwip_getpeername getpeername 542 #define lwip_getsockname getsockname 543 #define lwip_setsockopt setsockopt 544 #define lwip_getsockopt getsockopt 545 #define lwip_close closesocket 546 #define lwip_connect connect 547 #define lwip_listen listen 548 #define lwip_recv recv 549 #define lwip_recvmsg recvmsg 550 #define lwip_recvfrom recvfrom 551 #define lwip_send send 552 #define lwip_sendmsg sendmsg 553 #define lwip_sendto sendto 554 #define lwip_socket socket 555 #if LWIP_SOCKET_SELECT 556 #define lwip_select select 557 #endif 558 #if LWIP_SOCKET_POLL 559 #define lwip_poll poll 560 #endif 561 #define lwip_ioctl ioctlsocket 562 #define lwip_inet_ntop inet_ntop 563 #define lwip_inet_pton inet_pton 564 565 #if LWIP_POSIX_SOCKETS_IO_NAMES 566 #define lwip_read read 567 #define lwip_readv readv 568 #define lwip_write write 569 #define lwip_writev writev 570 #undef lwip_close 571 #define lwip_close close 572 #define closesocket(s) close(s) 573 int fcntl(int s, int cmd, ...); 574 #undef lwip_ioctl 575 #define lwip_ioctl ioctl 576 #define ioctlsocket ioctl 577 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ 578 #endif /* LWIP_COMPAT_SOCKETS == 2 */ 579 580 int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen); 581 int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen); 582 int lwip_shutdown(int s, int how); 583 int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen); 584 int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen); 585 int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen); 586 int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen); 587 int lwip_close(int s); 588 int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen); 589 int lwip_listen(int s, int backlog); 590 ssize_t lwip_recv(int s, void *mem, size_t len, int flags); 591 ssize_t lwip_read(int s, void *mem, size_t len); 592 ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt); 593 ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags, 594 struct sockaddr *from, socklen_t *fromlen); 595 ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags); 596 ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags); 597 ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags); 598 ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags, 599 const struct sockaddr *to, socklen_t tolen); 600 int lwip_socket(int domain, int type, int protocol); 601 ssize_t lwip_write(int s, const void *dataptr, size_t size); 602 ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt); 603 #if LWIP_SOCKET_SELECT 604 int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, 605 struct timeval *timeout); 606 #endif 607 #if LWIP_SOCKET_POLL 608 int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout); 609 #endif 610 int lwip_ioctl(int s, long cmd, void *argp); 611 int lwip_fcntl(int s, int cmd, int val); 612 const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size); 613 int lwip_inet_pton(int af, const char *src, void *dst); 614 615 #if LWIP_COMPAT_SOCKETS 616 #if LWIP_COMPAT_SOCKETS != 2 617 /** @ingroup socket */ 618 #define accept(s,addr,addrlen) lwip_accept(s,addr,addrlen) 619 /** @ingroup socket */ 620 #define bind(s,name,namelen) lwip_bind(s,name,namelen) 621 /** @ingroup socket */ 622 #define shutdown(s,how) lwip_shutdown(s,how) 623 /** @ingroup socket */ 624 #define getpeername(s,name,namelen) lwip_getpeername(s,name,namelen) 625 /** @ingroup socket */ 626 #define getsockname(s,name,namelen) lwip_getsockname(s,name,namelen) 627 /** @ingroup socket */ 628 #define setsockopt(s,level,optname,opval,optlen) lwip_setsockopt(s,level,optname,opval,optlen) 629 /** @ingroup socket */ 630 #define getsockopt(s,level,optname,opval,optlen) lwip_getsockopt(s,level,optname,opval,optlen) 631 /** @ingroup socket */ 632 #define closesocket(s) lwip_close(s) 633 /** @ingroup socket */ 634 #define connect(s,name,namelen) lwip_connect(s,name,namelen) 635 /** @ingroup socket */ 636 #define listen(s,backlog) lwip_listen(s,backlog) 637 /** @ingroup socket */ 638 #define recv(s,mem,len,flags) lwip_recv(s,mem,len,flags) 639 /** @ingroup socket */ 640 #define recvmsg(s,message,flags) lwip_recvmsg(s,message,flags) 641 /** @ingroup socket */ 642 #define recvfrom(s,mem,len,flags,from,fromlen) lwip_recvfrom(s,mem,len,flags,from,fromlen) 643 /** @ingroup socket */ 644 #define send(s,dataptr,size,flags) lwip_send(s,dataptr,size,flags) 645 /** @ingroup socket */ 646 #define sendmsg(s,message,flags) lwip_sendmsg(s,message,flags) 647 /** @ingroup socket */ 648 #define sendto(s,dataptr,size,flags,to,tolen) lwip_sendto(s,dataptr,size,flags,to,tolen) 649 /** @ingroup socket */ 650 #define socket(domain,type,protocol) lwip_socket(domain,type,protocol) 651 #if LWIP_SOCKET_SELECT 652 /** @ingroup socket */ 653 #define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout) 654 #endif 655 #if LWIP_SOCKET_POLL 656 /** @ingroup socket */ 657 #define poll(fds,nfds,timeout) lwip_poll(fds,nfds,timeout) 658 #endif 659 /** @ingroup socket */ 660 #define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp) 661 /** @ingroup socket */ 662 #define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size) 663 /** @ingroup socket */ 664 #define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst) 665 666 #if LWIP_POSIX_SOCKETS_IO_NAMES 667 /** @ingroup socket */ 668 #define read(s,mem,len) lwip_read(s,mem,len) 669 /** @ingroup socket */ 670 #define readv(s,iov,iovcnt) lwip_readv(s,iov,iovcnt) 671 /** @ingroup socket */ 672 #define write(s,dataptr,len) lwip_write(s,dataptr,len) 673 /** @ingroup socket */ 674 #define writev(s,iov,iovcnt) lwip_writev(s,iov,iovcnt) 675 /** @ingroup socket */ 676 #define close(s) lwip_close(s) 677 /** @ingroup socket */ 678 #define fcntl(s,cmd,val) lwip_fcntl(s,cmd,val) 679 /** @ingroup socket */ 680 #define ioctl(s,cmd,argp) lwip_ioctl(s,cmd,argp) 681 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ 682 #endif /* LWIP_COMPAT_SOCKETS != 2 */ 683 684 #endif /* LWIP_COMPAT_SOCKETS */ 685 686 #ifdef __cplusplus 687 } 688 #endif 689 690 #endif /* LWIP_SOCKET */ 691 692 #endif /* LWIP_SOCKET_EXTERNAL_HEADERS */ 693 694 #endif /* LWIP_HDR_SOCKETS_H */ 695