2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
27 * This file is part of the lwIP TCP/IP stack.
29 * Author: Adam Dunkels <adam@sics.se>
34 #ifndef __LWIP_SOCKETS_H__
35 #define __LWIP_SOCKETS_H__
36 #include "lwip/ip_addr.h"
44 struct in_addr sin_addr;
55 # define socklen_t int
64 * Option flags per-socket.
66 #define SO_DEBUG 0x0001 /* turn on debugging info recording */
67 #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
68 #define SO_REUSEADDR 0x0004 /* allow local address reuse */
69 #define SO_KEEPALIVE 0x0008 /* keep connections alive */
70 #define SO_DONTROUTE 0x0010 /* just use interface addresses */
71 #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
72 #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
73 #define SO_LINGER 0x0080 /* linger on close if data present */
74 #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
75 #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
77 #define SO_DONTLINGER (int)(~SO_LINGER)
80 * Additional options, not kept in so_options.
82 #define SO_SNDBUF 0x1001 /* send buffer size */
83 #define SO_RCVBUF 0x1002 /* receive buffer size */
84 #define SO_SNDLOWAT 0x1003 /* send low-water mark */
85 #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
86 #define SO_SNDTIMEO 0x1005 /* send timeout */
87 #define SO_RCVTIMEO 0x1006 /* receive timeout */
88 #define SO_ERROR 0x1007 /* get error status and clear */
89 #define SO_TYPE 0x1008 /* get socket type */
90 #define SO_CONTIMEO 0x1009 /* connect timeout */
94 * Structure used for manipulating linger option.
97 int l_onoff; /* option on/off */
98 int l_linger; /* linger time */
102 * Level number for (get/set)sockopt() to apply to socket itself.
104 #define SOL_SOCKET 0xfff /* options for socket level */
109 #define PF_INET AF_INET
110 #define PF_UNSPEC AF_UNSPEC
113 #define IPPROTO_TCP 6
114 #define IPPROTO_UDP 17
117 #define INADDR_BROADCAST 0xffffffff
119 /* Flags we can use with send and recv. */
120 #define MSG_DONTWAIT 0x40 /* Nonblocking i/o for this operation only */
124 * Options for level IPPROTO_IP
132 * Options and types for UDP multicast traffic handling
134 #define IP_ADD_MEMBERSHIP 3
135 #define IP_DROP_MEMBERSHIP 4
136 #define IP_MULTICAST_TTL 5
137 #define IP_MULTICAST_IF 6
138 #define IP_MULTICAST_LOOP 7
140 typedef struct ip_mreq {
141 struct in_addr imr_multiaddr; /* IP multicast address of group */
142 struct in_addr imr_interface; /* local IP address of interface */
144 #endif /* LWIP_IGMP */
146 #define IPTOS_TOS_MASK 0x1E
147 #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
148 #define IPTOS_LOWDELAY 0x10
149 #define IPTOS_THROUGHPUT 0x08
150 #define IPTOS_RELIABILITY 0x04
151 #define IPTOS_LOWCOST 0x02
152 #define IPTOS_MINCOST IPTOS_LOWCOST
155 * Definitions for IP precedence (also in ip_tos) (hopefully unused)
157 #define IPTOS_PREC_MASK 0xe0
158 #define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
159 #define IPTOS_PREC_NETCONTROL 0xe0
160 #define IPTOS_PREC_INTERNETCONTROL 0xc0
161 #define IPTOS_PREC_CRITIC_ECP 0xa0
162 #define IPTOS_PREC_FLASHOVERRIDE 0x80
163 #define IPTOS_PREC_FLASH 0x60
164 #define IPTOS_PREC_IMMEDIATE 0x40
165 #define IPTOS_PREC_PRIORITY 0x20
166 #define IPTOS_PREC_ROUTINE 0x00
170 * Commands for ioctlsocket(), taken from the BSD file fcntl.h.
173 * Ioctl's have the command encoded in the lower word,
174 * and the size of any in or out parameters in the upper
175 * word. The high 2 bits of the upper word are used
176 * to encode the in/out status of the parameter; for now
177 * we restrict parameters to at most 128 bytes.
179 #if !defined(FIONREAD) || !defined(FIONBIO)
180 #define IOCPARM_MASK 0x7f /* parameters must be < 128 bytes */
181 #define IOC_VOID 0x20000000 /* no parameters */
182 #define IOC_OUT 0x40000000 /* copy out parameters */
183 #define IOC_IN 0x80000000 /* copy in parameters */
184 #define IOC_INOUT (IOC_IN|IOC_OUT)
185 /* 0x20000000 distinguishes new &
187 #define _IO(x,y) (IOC_VOID|((x)<<8)|(y))
189 #define _IOR(x,y,t) (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
191 #define _IOW(x,y,t) (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
195 #define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */
198 #define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
201 /* Socket I/O Controls */
203 #define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */
204 #define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */
205 #define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */
206 #define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */
207 #define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */
211 #define O_NONBLOCK 04000U
216 #define FD_SETSIZE 16
217 #define FD_SET(n, p) ((p)->fd_bits[(n)/8] |= (1 << ((n) & 7)))
218 #define FD_CLR(n, p) ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
219 #define FD_ISSET(n,p) ((p)->fd_bits[(n)/8] & (1 << ((n) & 7)))
220 #define FD_ZERO(p) memset((void*)(p),0,sizeof(*(p)))
222 typedef struct fd_set {
223 unsigned char fd_bits [(FD_SETSIZE+7)/8];
227 * only define this in sockets.c so it does not interfere
228 * with other projects namespaces where timeval is present
230 #ifndef LWIP_TIMEVAL_PRIVATE
231 #define LWIP_TIMEVAL_PRIVATE 1
234 #if LWIP_TIMEVAL_PRIVATE
236 long tv_sec; /* seconds */
237 long tv_usec; /* and microseconds */
243 void lwip_socket_init(void);
245 int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
246 int lwip_bind(int s, struct sockaddr *name, socklen_t namelen);
247 int lwip_shutdown(int s, int how);
248 int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
249 int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
250 int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
251 int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
252 int lwip_close(int s);
253 int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
254 int lwip_listen(int s, int backlog);
255 int lwip_recv(int s, void *mem, int len, unsigned int flags);
256 int lwip_read(int s, void *mem, int len);
257 int lwip_recvfrom(int s, void *mem, int len, unsigned int flags,
258 struct sockaddr *from, socklen_t *fromlen);
259 int lwip_send(int s, const void *dataptr, int size, unsigned int flags);
260 int lwip_sendto(int s, const void *dataptr, int size, unsigned int flags,
261 struct sockaddr *to, socklen_t tolen);
262 int lwip_socket(int domain, int type, int protocol);
263 int lwip_write(int s, const void *dataptr, int size);
264 int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
265 struct timeval *timeout);
266 int lwip_ioctl(int s, long cmd, void *argp);
268 #if LWIP_COMPAT_SOCKETS
269 #define accept(a,b,c) lwip_accept(a,b,c)
270 #define bind(a,b,c) lwip_bind(a,b,c)
271 #define shutdown(a,b) lwip_shutdown(a,b)
272 #define closesocket(s) lwip_close(s)
273 #define connect(a,b,c) lwip_connect(a,b,c)
274 #define getsockname(a,b,c) lwip_getsockname(a,b,c)
275 #define getpeername(a,b,c) lwip_getpeername(a,b,c)
276 #define setsockopt(a,b,c,d,e) lwip_setsockopt(a,b,c,d,e)
277 #define getsockopt(a,b,c,d,e) lwip_getsockopt(a,b,c,d,e)
278 #define listen(a,b) lwip_listen(a,b)
279 #define recv(a,b,c,d) lwip_recv(a,b,c,d)
280 #define recvfrom(a,b,c,d,e,f) lwip_recvfrom(a,b,c,d,e,f)
281 #define send(a,b,c,d) lwip_send(a,b,c,d)
282 #define sendto(a,b,c,d,e,f) lwip_sendto(a,b,c,d,e,f)
283 #define socket(a,b,c) lwip_socket(a,b,c)
284 #define select(a,b,c,d,e) lwip_select(a,b,c,d,e)
285 #define ioctlsocket(a,b,c) lwip_ioctl(a,b,c)
287 #if LWIP_POSIX_SOCKETS_IO_NAMES
288 #define read(a,b,c) lwip_read(a,b,c)
289 #define write(a,b,c) lwip_write(a,b,c)
290 #define close(s) lwip_close(s)
291 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
293 #endif /* LWIP_COMPAT_SOCKETS */
295 #endif /* __LWIP_SOCKETS_H__ */