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
55extern "C" {
56#endif
57
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)
61typedef 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)
66typedef u16_t in_port_t;
67#endif
68
69#if LWIP_IPV4
70/* members are in network byte order */
71struct 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
82struct 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
92struct sockaddr {
93  u8_t        sa_len;
94  sa_family_t sa_family;
95  char        sa_data[14];
96};
97
98struct 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)
111typedef 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)
121struct iovec {
122  void  *iov_base;
123  size_t iov_len;
124};
125#endif
126
127struct 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 */
142struct 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
151size on 16-bit arch) so structures are not placed at an unaligned address.
15216-bit arch needs double word to ensure 32-bit alignment because socklen_t
153could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment
154will 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
183struct 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 */
226struct 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
319typedef 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
326struct 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
341typedef 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
481typedef 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
506typedef unsigned int nfds_t;
507struct 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
522struct timeval {
523  long    tv_sec;         /* seconds */
524  long    tv_usec;        /* and microseconds */
525};
526#endif /* LWIP_TIMEVAL_PRIVATE */
527
528#define lwip_socket_init() /* Compatibility define, no init needed. */
529void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */
530void 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)
569int 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
576int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
577int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
578int lwip_shutdown(int s, int how);
579int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
580int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
581int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
582int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
583 int lwip_close(int s);
584int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
585int lwip_listen(int s, int backlog);
586ssize_t lwip_recv(int s, void *mem, size_t len, int flags);
587ssize_t lwip_read(int s, void *mem, size_t len);
588ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt);
589ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags,
590      struct sockaddr *from, socklen_t *fromlen);
591ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags);
592ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags);
593ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags);
594ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags,
595    const struct sockaddr *to, socklen_t tolen);
596int lwip_socket(int domain, int type, int protocol);
597ssize_t lwip_write(int s, const void *dataptr, size_t size);
598ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt);
599#if LWIP_SOCKET_SELECT
600int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
601                struct timeval *timeout);
602#endif
603#if LWIP_SOCKET_POLL
604int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout);
605#endif
606int lwip_ioctl(int s, long cmd, void *argp);
607int lwip_fcntl(int s, int cmd, int val);
608const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size);
609int lwip_inet_pton(int af, const char *src, void *dst);
610
611#if LWIP_COMPAT_SOCKETS
612#if LWIP_COMPAT_SOCKETS != 2
613/** @ingroup socket */
614#define accept(s,addr,addrlen)                    lwip_accept(s,addr,addrlen)
615/** @ingroup socket */
616#define bind(s,name,namelen)                      lwip_bind(s,name,namelen)
617/** @ingroup socket */
618#define shutdown(s,how)                           lwip_shutdown(s,how)
619/** @ingroup socket */
620#define getpeername(s,name,namelen)               lwip_getpeername(s,name,namelen)
621/** @ingroup socket */
622#define getsockname(s,name,namelen)               lwip_getsockname(s,name,namelen)
623/** @ingroup socket */
624#define setsockopt(s,level,optname,opval,optlen)  lwip_setsockopt(s,level,optname,opval,optlen)
625/** @ingroup socket */
626#define getsockopt(s,level,optname,opval,optlen)  lwip_getsockopt(s,level,optname,opval,optlen)
627/** @ingroup socket */
628#define closesocket(s)                            lwip_close(s)
629/** @ingroup socket */
630#define connect(s,name,namelen)                   lwip_connect(s,name,namelen)
631/** @ingroup socket */
632#define listen(s,backlog)                         lwip_listen(s,backlog)
633/** @ingroup socket */
634#define recv(s,mem,len,flags)                     lwip_recv(s,mem,len,flags)
635/** @ingroup socket */
636#define recvmsg(s,message,flags)                  lwip_recvmsg(s,message,flags)
637/** @ingroup socket */
638#define recvfrom(s,mem,len,flags,from,fromlen)    lwip_recvfrom(s,mem,len,flags,from,fromlen)
639/** @ingroup socket */
640#define send(s,dataptr,size,flags)                lwip_send(s,dataptr,size,flags)
641/** @ingroup socket */
642#define sendmsg(s,message,flags)                  lwip_sendmsg(s,message,flags)
643/** @ingroup socket */
644#define sendto(s,dataptr,size,flags,to,tolen)     lwip_sendto(s,dataptr,size,flags,to,tolen)
645/** @ingroup socket */
646#define socket(domain,type,protocol)              lwip_socket(domain,type,protocol)
647#if LWIP_SOCKET_SELECT
648/** @ingroup socket */
649#define select(maxfdp1,readset,writeset,exceptset,timeout)     lwip_select(maxfdp1,readset,writeset,exceptset,timeout)
650#endif
651#if LWIP_SOCKET_POLL
652/** @ingroup socket */
653#define poll(fds,nfds,timeout)                    lwip_poll(fds,nfds,timeout)
654#endif
655/** @ingroup socket */
656#define ioctlsocket(s,cmd,argp)                   lwip_ioctl(s,cmd,argp)
657/** @ingroup socket */
658#define inet_ntop(af,src,dst,size)                lwip_inet_ntop(af,src,dst,size)
659/** @ingroup socket */
660#define inet_pton(af,src,dst)                     lwip_inet_pton(af,src,dst)
661
662#if LWIP_POSIX_SOCKETS_IO_NAMES
663/** @ingroup socket */
664#define read(s,mem,len)                           lwip_read(s,mem,len)
665/** @ingroup socket */
666#define readv(s,iov,iovcnt)                       lwip_readv(s,iov,iovcnt)
667/** @ingroup socket */
668#define write(s,dataptr,len)                      lwip_write(s,dataptr,len)
669/** @ingroup socket */
670#define writev(s,iov,iovcnt)                      lwip_writev(s,iov,iovcnt)
671/** @ingroup socket */
672#define close(s)                                  lwip_close(s)
673/** @ingroup socket */
674#define fcntl(s,cmd,val)                          lwip_fcntl(s,cmd,val)
675/** @ingroup socket */
676#define ioctl(s,cmd,argp)                         lwip_ioctl(s,cmd,argp)
677#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
678#endif /* LWIP_COMPAT_SOCKETS != 2 */
679
680#endif /* LWIP_COMPAT_SOCKETS */
681
682#ifdef __cplusplus
683}
684#endif
685
686#endif /* LWIP_SOCKET */
687
688#endif /* LWIP_HDR_SOCKETS_H */
689