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 <adam@sics.se> 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 /* don't build if not configured for use in lwipopts.h */ 45 46 #if LWIP_SOCKET_EXTERNAL_HEADERS 47 #include LWIP_SOCKET_EXTERNAL_HEADER_SOCKETS_H 48 #else /* LWIP_SOCKET_EXTERNAL_HEADERS */ 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 /* sockaddr and pals include length fields */ 63 #define LWIP_SOCKET_HAVE_SA_LEN 1 64 65 /* If your port already typedef's sa_family_t, define SA_FAMILY_T_DEFINED 66 to prevent this code from redefining it. */ 67 #if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED) 68 typedef u8_t sa_family_t; 69 #endif 70 /* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED 71 to prevent this code from redefining it. */ 72 #if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED) 73 typedef u16_t in_port_t; 74 #endif 75 76 #if LWIP_IPV4 77 /* members are in network byte order */ 78 struct sockaddr_in { 79 u8_t sin_len; 80 sa_family_t sin_family; 81 in_port_t sin_port; 82 struct in_addr sin_addr; 83 #define SIN_ZERO_LEN 8 84 char sin_zero[SIN_ZERO_LEN]; 85 }; 86 #endif /* LWIP_IPV4 */ 87 88 #if LWIP_IPV6 89 struct sockaddr_in6 { 90 u8_t sin6_len; /* length of this structure */ 91 sa_family_t sin6_family; /* AF_INET6 */ 92 in_port_t sin6_port; /* Transport layer port # */ 93 u32_t sin6_flowinfo; /* IPv6 flow information */ 94 struct in6_addr sin6_addr; /* IPv6 address */ 95 u32_t sin6_scope_id; /* Set of interfaces for scope */ 96 }; 97 #endif /* LWIP_IPV6 */ 98 99 struct sockaddr { 100 u8_t sa_len; 101 sa_family_t sa_family; 102 char sa_data[14]; 103 }; 104 105 struct sockaddr_storage { 106 u8_t s2_len; 107 sa_family_t ss_family; 108 char s2_data1[2]; 109 u32_t s2_data2[3]; 110 #if LWIP_IPV6 111 u32_t s2_data3[3]; 112 #endif /* LWIP_IPV6 */ 113 }; 114 115 /* If your port already typedef's socklen_t, define SOCKLEN_T_DEFINED 116 to prevent this code from redefining it. */ 117 #if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED) 118 typedef u32_t socklen_t; 119 #endif 120 121 #if !defined IOV_MAX 122 #define IOV_MAX 0xFFFF 123 #elif IOV_MAX > 0xFFFF 124 #error "IOV_MAX larger than supported by LwIP" 125 #endif /* IOV_MAX */ 126 127 #if !defined(iovec) 128 struct iovec { 129 void *iov_base; 130 size_t iov_len; 131 }; 132 #endif 133 134 typedef int msg_iovlen_t; 135 136 struct msghdr { 137 void *msg_name; 138 socklen_t msg_namelen; 139 struct iovec *msg_iov; 140 msg_iovlen_t msg_iovlen; 141 void *msg_control; 142 socklen_t msg_controllen; 143 int msg_flags; 144 }; 145 146 /* struct msghdr->msg_flags bit field values */ 147 #define MSG_TRUNC 0x04 148 #define MSG_CTRUNC 0x08 149 150 /* RFC 3542, Section 20: Ancillary Data */ 151 struct cmsghdr { 152 socklen_t cmsg_len; /* number of bytes, including header */ 153 int cmsg_level; /* originating protocol */ 154 int cmsg_type; /* protocol-specific type */ 155 }; 156 /* Data section follows header and possible padding, typically referred to as 157 unsigned char cmsg_data[]; */ 158 159 /* cmsg header/data alignment. NOTE: we align to native word size (double word 160 size on 16-bit arch) so structures are not placed at an unaligned address. 161 16-bit arch needs double word to ensure 32-bit alignment because socklen_t 162 could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment 163 will need to increase long long */ 164 #define ALIGN_H(size) (((size) + sizeof(long) - 1U) & ~(sizeof(long)-1U)) 165 #define ALIGN_D(size) ALIGN_H(size) 166 167 #define CMSG_FIRSTHDR(mhdr) \ 168 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 169 (struct cmsghdr *)(mhdr)->msg_control : \ 170 (struct cmsghdr *)NULL) 171 172 #define CMSG_NXTHDR(mhdr, cmsg) \ 173 (((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \ 174 (((u8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) \ 175 + ALIGN_D(sizeof(struct cmsghdr)) > \ 176 (u8_t *)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \ 177 (struct cmsghdr *)NULL : \ 178 (struct cmsghdr *)((void*)((u8_t *)(cmsg) + \ 179 ALIGN_H((cmsg)->cmsg_len))))) 180 181 #define CMSG_DATA(cmsg) ((void*)((u8_t *)(cmsg) + \ 182 ALIGN_D(sizeof(struct cmsghdr)))) 183 184 #define CMSG_SPACE(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ 185 ALIGN_H(length)) 186 187 #define CMSG_LEN(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ 188 length) 189 190 /* Set socket options argument */ 191 #define IFNAMSIZ NETIF_NAMESIZE 192 struct ifreq { 193 char ifr_name[IFNAMSIZ]; /* Interface name */ 194 }; 195 196 /* Socket protocol types (TCP/UDP/RAW) */ 197 #define SOCK_STREAM 1 198 #define SOCK_DGRAM 2 199 #define SOCK_RAW 3 200 201 /* 202 * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c) 203 */ 204 #define SO_REUSEADDR 0x0004 /* Allow local address reuse */ 205 #define SO_KEEPALIVE 0x0008 /* keep connections alive */ 206 #define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ 207 208 209 /* 210 * Additional options, not kept in so_options. 211 */ 212 #define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */ 213 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 214 #define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */ 215 #define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */ 216 #define SO_LINGER 0x0080 /* linger on close if data present */ 217 #define SO_DONTLINGER ((int)(~SO_LINGER)) 218 #define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */ 219 #define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */ 220 #define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */ 221 #define SO_RCVBUF 0x1002 /* receive buffer size */ 222 #define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */ 223 #define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */ 224 #define SO_SNDTIMEO 0x1005 /* send timeout */ 225 #define SO_RCVTIMEO 0x1006 /* receive timeout */ 226 #define SO_ERROR 0x1007 /* get error status and clear */ 227 #define SO_TYPE 0x1008 /* get socket type */ 228 #define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */ 229 #define SO_NO_CHECK 0x100a /* don't create UDP checksum */ 230 #define SO_BINDTODEVICE 0x100b /* bind to device */ 231 232 /* 233 * Structure used for manipulating linger option. 234 */ 235 struct linger { 236 int l_onoff; /* option on/off */ 237 int l_linger; /* linger time in seconds */ 238 }; 239 240 /* 241 * Level number for (get/set)sockopt() to apply to socket itself. 242 */ 243 #define SOL_SOCKET 0xfff /* options for socket level */ 244 245 246 #define AF_UNSPEC 0 247 #define AF_INET 2 248 #if LWIP_IPV6 249 #define AF_INET6 10 250 #else /* LWIP_IPV6 */ 251 #define AF_INET6 AF_UNSPEC 252 #endif /* LWIP_IPV6 */ 253 #define PF_INET AF_INET 254 #define PF_INET6 AF_INET6 255 #define PF_UNSPEC AF_UNSPEC 256 257 #define IPPROTO_IP 0 258 #define IPPROTO_ICMP 1 259 #define IPPROTO_TCP 6 260 #define IPPROTO_UDP 17 261 #if LWIP_IPV6 262 #define IPPROTO_IPV6 41 263 #define IPPROTO_ICMPV6 58 264 #endif /* LWIP_IPV6 */ 265 #define IPPROTO_UDPLITE 136 266 #define IPPROTO_RAW 255 267 268 /* Flags we can use with send and recv. */ 269 #define MSG_PEEK 0x01 /* Peeks at an incoming message */ 270 #define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */ 271 #define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */ 272 #define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */ 273 #define MSG_MORE 0x10 /* Sender will send more */ 274 #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. */ 275 276 277 /* 278 * Options for level IPPROTO_IP 279 */ 280 #define IP_TOS 1 281 #define IP_TTL 2 282 #define IP_PKTINFO 8 283 284 #if LWIP_TCP 285 /* 286 * Options for level IPPROTO_TCP 287 */ 288 #define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ 289 #define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */ 290 #define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */ 291 #define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */ 292 #define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */ 293 #endif /* LWIP_TCP */ 294 295 #if LWIP_IPV6 296 /* 297 * Options for level IPPROTO_IPV6 298 */ 299 #define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */ 300 #define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */ 301 #endif /* LWIP_IPV6 */ 302 303 #if LWIP_UDP && LWIP_UDPLITE 304 /* 305 * Options for level IPPROTO_UDPLITE 306 */ 307 #define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */ 308 #define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */ 309 #endif /* LWIP_UDP && LWIP_UDPLITE*/ 310 311 312 #if LWIP_MULTICAST_TX_OPTIONS 313 /* 314 * Options and types for UDP multicast traffic handling 315 */ 316 #define IP_MULTICAST_TTL 5 317 #define IP_MULTICAST_IF 6 318 #define IP_MULTICAST_LOOP 7 319 #endif /* LWIP_MULTICAST_TX_OPTIONS */ 320 321 #if LWIP_IGMP 322 /* 323 * Options and types related to multicast membership 324 */ 325 #define IP_ADD_MEMBERSHIP 3 326 #define IP_DROP_MEMBERSHIP 4 327 328 typedef struct ip_mreq { 329 struct in_addr imr_multiaddr; /* IP multicast address of group */ 330 struct in_addr imr_interface; /* local IP address of interface */ 331 } ip_mreq; 332 #endif /* LWIP_IGMP */ 333 334 #if LWIP_IPV4 335 struct in_pktinfo { 336 unsigned int ipi_ifindex; /* Interface index */ 337 struct in_addr ipi_addr; /* Destination (from header) address */ 338 }; 339 #endif /* LWIP_IPV4 */ 340 341 #if LWIP_IPV6_MLD 342 /* 343 * Options and types related to IPv6 multicast membership 344 */ 345 #define IPV6_JOIN_GROUP 12 346 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP 347 #define IPV6_LEAVE_GROUP 13 348 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP 349 350 typedef struct ipv6_mreq { 351 struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */ 352 unsigned int ipv6mr_interface; /* interface index, or 0 */ 353 } ipv6_mreq; 354 #endif /* LWIP_IPV6_MLD */ 355 356 /* 357 * The Type of Service provides an indication of the abstract 358 * parameters of the quality of service desired. These parameters are 359 * to be used to guide the selection of the actual service parameters 360 * when transmitting a datagram through a particular network. Several 361 * networks offer service precedence, which somehow treats high 362 * precedence traffic as more important than other traffic (generally 363 * by accepting only traffic above a certain precedence at time of high 364 * load). The major choice is a three way tradeoff between low-delay, 365 * high-reliability, and high-throughput. 366 * The use of the Delay, Throughput, and Reliability indications may 367 * increase the cost (in some sense) of the service. In many networks 368 * better performance for one of these parameters is coupled with worse 369 * performance on another. Except for very unusual cases at most two 370 * of these three indications should be set. 371 */ 372 #define IPTOS_TOS_MASK 0x1E 373 #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK) 374 #define IPTOS_LOWDELAY 0x10 375 #define IPTOS_THROUGHPUT 0x08 376 #define IPTOS_RELIABILITY 0x04 377 #define IPTOS_LOWCOST 0x02 378 #define IPTOS_MINCOST IPTOS_LOWCOST 379 380 /* 381 * The Network Control precedence designation is intended to be used 382 * within a network only. The actual use and control of that 383 * designation is up to each network. The Internetwork Control 384 * designation is intended for use by gateway control originators only. 385 * If the actual use of these precedence designations is of concern to 386 * a particular network, it is the responsibility of that network to 387 * control the access to, and use of, those precedence designations. 388 */ 389 #define IPTOS_PREC_MASK 0xe0 390 #define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK) 391 #define IPTOS_PREC_NETCONTROL 0xe0 392 #define IPTOS_PREC_INTERNETCONTROL 0xc0 393 #define IPTOS_PREC_CRITIC_ECP 0xa0 394 #define IPTOS_PREC_FLASHOVERRIDE 0x80 395 #define IPTOS_PREC_FLASH 0x60 396 #define IPTOS_PREC_IMMEDIATE 0x40 397 #define IPTOS_PREC_PRIORITY 0x20 398 #define IPTOS_PREC_ROUTINE 0x00 399 400 401 /* 402 * Commands for ioctlsocket(), taken from the BSD file fcntl.h. 403 * lwip_ioctl only supports FIONREAD and FIONBIO, for now 404 * 405 * Ioctl's have the command encoded in the lower word, 406 * and the size of any in or out parameters in the upper 407 * word. The high 2 bits of the upper word are used 408 * to encode the in/out status of the parameter; for now 409 * we restrict parameters to at most 128 bytes. 410 */ 411 #if !defined(FIONREAD) || !defined(FIONBIO) 412 #define IOCPARM_MASK 0x7fUL /* parameters must be < 128 bytes */ 413 #define IOC_VOID 0x20000000UL /* no parameters */ 414 #define IOC_OUT 0x40000000UL /* copy out parameters */ 415 #define IOC_IN 0x80000000UL /* copy in parameters */ 416 #define IOC_INOUT (IOC_IN|IOC_OUT) 417 /* 0x20000000 distinguishes new & 418 old ioctl's */ 419 #define _IO(x,y) ((long)(IOC_VOID|((x)<<8)|(y))) 420 421 #define _IOR(x,y,t) ((long)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) 422 423 #define _IOW(x,y,t) ((long)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) 424 #endif /* !defined(FIONREAD) || !defined(FIONBIO) */ 425 426 #ifndef FIONREAD 427 #define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */ 428 #endif 429 #ifndef FIONBIO 430 #define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */ 431 #endif 432 433 /* Socket I/O Controls: unimplemented */ 434 #ifndef SIOCSHIWAT 435 #define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */ 436 #define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */ 437 #define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */ 438 #define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */ 439 #define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */ 440 #endif 441 442 /* commands for fnctl */ 443 #ifndef F_GETFL 444 #define F_GETFL 3 445 #endif 446 #ifndef F_SETFL 447 #define F_SETFL 4 448 #endif 449 450 /* File status flags and file access modes for fnctl, 451 these are bits in an int. */ 452 #ifndef O_NONBLOCK 453 #define O_NONBLOCK 1 /* nonblocking I/O */ 454 #endif 455 #ifndef O_NDELAY 456 #define O_NDELAY O_NONBLOCK /* same as O_NONBLOCK, for compatibility */ 457 #endif 458 #ifndef O_RDONLY 459 #define O_RDONLY 2 460 #endif 461 #ifndef O_WRONLY 462 #define O_WRONLY 4 463 #endif 464 #ifndef O_RDWR 465 #define O_RDWR (O_RDONLY|O_WRONLY) 466 #endif 467 468 #ifndef SHUT_RD 469 #define SHUT_RD 0 470 #define SHUT_WR 1 471 #define SHUT_RDWR 2 472 #endif 473 474 /* FD_SET used for lwip_select */ 475 #ifndef FD_SET 476 #undef FD_SETSIZE 477 /* Make FD_SETSIZE match NUM_SOCKETS in socket.c */ 478 #define FD_SETSIZE MEMP_NUM_NETCONN 479 #define LWIP_SELECT_MAXNFDS (FD_SETSIZE + LWIP_SOCKET_OFFSET) 480 #define FDSETSAFESET(n, code) do { \ 481 if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \ 482 code; }} while(0) 483 #define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\ 484 (code) : 0) 485 #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)))) 486 #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)))) 487 #define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))) 488 #define FD_ZERO(p) memset((void*)(p), 0, sizeof(*(p))) 489 490 typedef struct fd_set 491 { 492 unsigned char fd_bits [(FD_SETSIZE+7)/8]; 493 } fd_set; 494 495 #elif FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN) 496 #error "external FD_SETSIZE too small for number of sockets" 497 #else 498 #define LWIP_SELECT_MAXNFDS FD_SETSIZE 499 #endif /* FD_SET */ 500 501 /* poll-related defines and types */ 502 /* @todo: find a better way to guard the definition of these defines and types if already defined */ 503 #if !defined(POLLIN) && !defined(POLLOUT) 504 #define POLLIN 0x1 505 #define POLLOUT 0x2 506 #define POLLERR 0x4 507 #define POLLNVAL 0x8 508 /* Below values are unimplemented */ 509 #define POLLRDNORM 0x10 510 #define POLLRDBAND 0x20 511 #define POLLPRI 0x40 512 #define POLLWRNORM 0x80 513 #define POLLWRBAND 0x100 514 #define POLLHUP 0x200 515 typedef unsigned int nfds_t; 516 struct pollfd 517 { 518 int fd; 519 short events; 520 short revents; 521 }; 522 #endif 523 524 /** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided 525 * by your system, set this to 0 and include <sys/time.h> in cc.h */ 526 #ifndef LWIP_TIMEVAL_PRIVATE 527 #define LWIP_TIMEVAL_PRIVATE 1 528 #endif 529 530 #if LWIP_TIMEVAL_PRIVATE 531 struct timeval { 532 long tv_sec; /* seconds */ 533 long tv_usec; /* and microseconds */ 534 }; 535 #endif /* LWIP_TIMEVAL_PRIVATE */ 536 537 #ifdef __cplusplus 538 } 539 #endif 540 541 #endif /* LWIP_SOCKET_EXTERNAL_HEADERS */ 542 543 #ifdef __cplusplus 544 extern "C" { 545 #endif 546 547 #define lwip_socket_init() /* Compatibility define, no init needed. */ 548 void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */ 549 void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */ 550 551 #if LWIP_COMPAT_SOCKETS == 2 552 /* This helps code parsers/code completion by not having the COMPAT functions as defines */ 553 #define lwip_accept accept 554 #define lwip_bind bind 555 #define lwip_shutdown shutdown 556 #define lwip_getpeername getpeername 557 #define lwip_getsockname getsockname 558 #define lwip_setsockopt setsockopt 559 #define lwip_getsockopt getsockopt 560 #define lwip_close closesocket 561 #define lwip_connect connect 562 #define lwip_listen listen 563 #define lwip_recv recv 564 #define lwip_recvmsg recvmsg 565 #define lwip_recvfrom recvfrom 566 #define lwip_send send 567 #define lwip_sendmsg sendmsg 568 #define lwip_sendto sendto 569 #define lwip_socket socket 570 #if LWIP_SOCKET_SELECT 571 #define lwip_select select 572 #endif 573 #if LWIP_SOCKET_POLL 574 #define lwip_poll poll 575 #endif 576 #define lwip_ioctl ioctlsocket 577 #define lwip_inet_ntop inet_ntop 578 #define lwip_inet_pton inet_pton 579 580 #if LWIP_POSIX_SOCKETS_IO_NAMES 581 #define lwip_read read 582 #define lwip_readv readv 583 #define lwip_write write 584 #define lwip_writev writev 585 #undef lwip_close 586 #define lwip_close close 587 #define closesocket(s) close(s) 588 int fcntl(int s, int cmd, ...); 589 #undef lwip_ioctl 590 #define lwip_ioctl ioctl 591 #define ioctlsocket ioctl 592 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ 593 #endif /* LWIP_COMPAT_SOCKETS == 2 */ 594 595 int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen); 596 int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen); 597 int lwip_shutdown(int s, int how); 598 int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen); 599 int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen); 600 int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen); 601 int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen); 602 int lwip_close(int s); 603 int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen); 604 int lwip_listen(int s, int backlog); 605 ssize_t lwip_recv(int s, void *mem, size_t len, int flags); 606 ssize_t lwip_read(int s, void *mem, size_t len); 607 ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt); 608 ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags, 609 struct sockaddr *from, socklen_t *fromlen); 610 ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags); 611 ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags); 612 ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags); 613 ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags, 614 const struct sockaddr *to, socklen_t tolen); 615 int lwip_socket(int domain, int type, int protocol); 616 ssize_t lwip_write(int s, const void *dataptr, size_t size); 617 ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt); 618 #if LWIP_SOCKET_SELECT 619 int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, 620 struct timeval *timeout); 621 #endif 622 #if LWIP_SOCKET_POLL 623 int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout); 624 #endif 625 int lwip_ioctl(int s, long cmd, void *argp); 626 int lwip_fcntl(int s, int cmd, int val); 627 const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size); 628 int lwip_inet_pton(int af, const char *src, void *dst); 629 630 #if LWIP_COMPAT_SOCKETS 631 #if LWIP_COMPAT_SOCKETS != 2 632 /** @ingroup socket */ 633 #define accept(s,addr,addrlen) lwip_accept(s,addr,addrlen) 634 /** @ingroup socket */ 635 #define bind(s,name,namelen) lwip_bind(s,name,namelen) 636 /** @ingroup socket */ 637 #define shutdown(s,how) lwip_shutdown(s,how) 638 /** @ingroup socket */ 639 #define getpeername(s,name,namelen) lwip_getpeername(s,name,namelen) 640 /** @ingroup socket */ 641 #define getsockname(s,name,namelen) lwip_getsockname(s,name,namelen) 642 /** @ingroup socket */ 643 #define setsockopt(s,level,optname,opval,optlen) lwip_setsockopt(s,level,optname,opval,optlen) 644 /** @ingroup socket */ 645 #define getsockopt(s,level,optname,opval,optlen) lwip_getsockopt(s,level,optname,opval,optlen) 646 /** @ingroup socket */ 647 #define closesocket(s) lwip_close(s) 648 /** @ingroup socket */ 649 #define connect(s,name,namelen) lwip_connect(s,name,namelen) 650 /** @ingroup socket */ 651 #define listen(s,backlog) lwip_listen(s,backlog) 652 /** @ingroup socket */ 653 #define recv(s,mem,len,flags) lwip_recv(s,mem,len,flags) 654 /** @ingroup socket */ 655 #define recvmsg(s,message,flags) lwip_recvmsg(s,message,flags) 656 /** @ingroup socket */ 657 #define recvfrom(s,mem,len,flags,from,fromlen) lwip_recvfrom(s,mem,len,flags,from,fromlen) 658 /** @ingroup socket */ 659 #define send(s,dataptr,size,flags) lwip_send(s,dataptr,size,flags) 660 /** @ingroup socket */ 661 #define sendmsg(s,message,flags) lwip_sendmsg(s,message,flags) 662 /** @ingroup socket */ 663 #define sendto(s,dataptr,size,flags,to,tolen) lwip_sendto(s,dataptr,size,flags,to,tolen) 664 /** @ingroup socket */ 665 #define socket(domain,type,protocol) lwip_socket(domain,type,protocol) 666 #if LWIP_SOCKET_SELECT 667 /** @ingroup socket */ 668 #define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout) 669 #endif 670 #if LWIP_SOCKET_POLL 671 /** @ingroup socket */ 672 #define poll(fds,nfds,timeout) lwip_poll(fds,nfds,timeout) 673 #endif 674 /** @ingroup socket */ 675 #define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp) 676 /** @ingroup socket */ 677 #define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size) 678 /** @ingroup socket */ 679 #define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst) 680 681 #if LWIP_POSIX_SOCKETS_IO_NAMES 682 /** @ingroup socket */ 683 #define read(s,mem,len) lwip_read(s,mem,len) 684 /** @ingroup socket */ 685 #define readv(s,iov,iovcnt) lwip_readv(s,iov,iovcnt) 686 /** @ingroup socket */ 687 #define write(s,dataptr,len) lwip_write(s,dataptr,len) 688 /** @ingroup socket */ 689 #define writev(s,iov,iovcnt) lwip_writev(s,iov,iovcnt) 690 /** @ingroup socket */ 691 #define close(s) lwip_close(s) 692 /** @ingroup socket */ 693 #define fcntl(s,cmd,val) lwip_fcntl(s,cmd,val) 694 /** @ingroup socket */ 695 #define ioctl(s,cmd,argp) lwip_ioctl(s,cmd,argp) 696 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ 697 #endif /* LWIP_COMPAT_SOCKETS != 2 */ 698 699 #endif /* LWIP_COMPAT_SOCKETS */ 700 701 #ifdef __cplusplus 702 } 703 #endif 704 705 #endif /* LWIP_SOCKET */ 706 707 #endif /* LWIP_HDR_SOCKETS_H */ 708