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