sockets.h
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- /*
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * This file is part of the lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- */
- #ifndef __LWIP_SOCKETS_H__
- #define __LWIP_SOCKETS_H__
- #include "lwip/ip_addr.h"
- struct sockaddr_in {
- u8_t sin_len;
- u8_t sin_family;
- u16_t sin_port;
- struct in_addr sin_addr;
- char sin_zero[8];
- };
- struct sockaddr {
- u8_t sa_len;
- u8_t sa_family;
- char sa_data[14];
- };
- #ifndef socklen_t
- # define socklen_t int
- #endif
- #define SOCK_STREAM 1
- #define SOCK_DGRAM 2
- #define SOCK_RAW 3
- /*
- * Option flags per-socket.
- */
- #define SO_DEBUG 0x0001 /* turn on debugging info recording */
- #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
- #define SO_REUSEADDR 0x0004 /* allow local address reuse */
- #define SO_KEEPALIVE 0x0008 /* keep connections alive */
- #define SO_DONTROUTE 0x0010 /* just use interface addresses */
- #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */
- #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
- #define SO_LINGER 0x0080 /* linger on close if data present */
- #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
- #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
- #define SO_DONTLINGER (int)(~SO_LINGER)
- /*
- * Additional options, not kept in so_options.
- */
- #define SO_SNDBUF 0x1001 /* send buffer size */
- #define SO_RCVBUF 0x1002 /* receive buffer size */
- #define SO_SNDLOWAT 0x1003 /* send low-water mark */
- #define SO_RCVLOWAT 0x1004 /* receive low-water mark */
- #define SO_SNDTIMEO 0x1005 /* send timeout */
- #define SO_RCVTIMEO 0x1006 /* receive timeout */
- #define SO_ERROR 0x1007 /* get error status and clear */
- #define SO_TYPE 0x1008 /* get socket type */
- /*
- * Structure used for manipulating linger option.
- */
- struct linger {
- int l_onoff; /* option on/off */
- int l_linger; /* linger time */
- };
- /*
- * Level number for (get/set)sockopt() to apply to socket itself.
- */
- #define SOL_SOCKET 0xfff /* options for socket level */
- #define AF_UNSPEC 0
- #define AF_INET 2
- #define PF_INET AF_INET
- #define PF_UNSPEC AF_UNSPEC
- #define IPPROTO_IP 0
- #define IPPROTO_TCP 6
- #define IPPROTO_UDP 17
- #define INADDR_ANY 0
- #define INADDR_BROADCAST 0xffffffff
- /* Flags we can use with send and recv. */
- #define MSG_DONTWAIT 0x40 /* Nonblocking i/o for this operation only */
- /*
- * Options for level IPPROTO_IP
- */
- #define IP_TOS 1
- #define IP_TTL 2
- #define IPTOS_TOS_MASK 0x1E
- #define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
- #define IPTOS_LOWDELAY 0x10
- #define IPTOS_THROUGHPUT 0x08
- #define IPTOS_RELIABILITY 0x04
- #define IPTOS_LOWCOST 0x02
- #define IPTOS_MINCOST IPTOS_LOWCOST
- /*
- * Definitions for IP precedence (also in ip_tos) (hopefully unused)
- */
- #define IPTOS_PREC_MASK 0xe0
- #define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
- #define IPTOS_PREC_NETCONTROL 0xe0
- #define IPTOS_PREC_INTERNETCONTROL 0xc0
- #define IPTOS_PREC_CRITIC_ECP 0xa0
- #define IPTOS_PREC_FLASHOVERRIDE 0x80
- #define IPTOS_PREC_FLASH 0x60
- #define IPTOS_PREC_IMMEDIATE 0x40
- #define IPTOS_PREC_PRIORITY 0x20
- #define IPTOS_PREC_ROUTINE 0x00
- /*
- * Commands for ioctlsocket(), taken from the BSD file fcntl.h.
- *
- *
- * Ioctl's have the command encoded in the lower word,
- * and the size of any in or out parameters in the upper
- * word. The high 2 bits of the upper word are used
- * to encode the in/out status of the parameter; for now
- * we restrict parameters to at most 128 bytes.
- */
- #if !defined(FIONREAD) || !defined(FIONBIO)
- #define IOCPARM_MASK 0x7f /* parameters must be < 128 bytes */
- #define IOC_VOID 0x20000000 /* no parameters */
- #define IOC_OUT 0x40000000 /* copy out parameters */
- #define IOC_IN 0x80000000 /* copy in parameters */
- #define IOC_INOUT (IOC_IN|IOC_OUT)
- /* 0x20000000 distinguishes new &
- old ioctl's */
- #define _IO(x,y) (IOC_VOID|((x)<<8)|(y))
- #define _IOR(x,y,t) (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
- #define _IOW(x,y,t) (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
- #endif
- #ifndef FIONREAD
- #define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */
- #endif
- #ifndef FIONBIO
- #define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
- #endif
- /* Socket I/O Controls */
- #ifndef SIOCSHIWAT
- #define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */
- #define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */
- #define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */
- #define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */
- #define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */
- #endif
- #ifndef O_NONBLOCK
- #define O_NONBLOCK 04000U
- #endif
- #ifndef FD_SET
- #undef FD_SETSIZE
- #define FD_SETSIZE 16
- #define FD_SET(n, p) ((p)->fd_bits[(n)/8] |= (1 << ((n) & 7)))
- #define FD_CLR(n, p) ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
- #define FD_ISSET(n,p) ((p)->fd_bits[(n)/8] & (1 << ((n) & 7)))
- #define FD_ZERO(p) memset((void*)(p),0,sizeof(*(p)))
- typedef struct fd_set {
- unsigned char fd_bits [(FD_SETSIZE+7)/8];
- } fd_set;
- /*
- * only define this in sockets.c so it does not interfere
- * with other projects namespaces where timeval is present
- */
- #ifndef LWIP_TIMEVAL_PRIVATE
- #define LWIP_TIMEVAL_PRIVATE 1
- #endif
- #if LWIP_TIMEVAL_PRIVATE
- struct timeval {
- long tv_sec; /* seconds */
- long tv_usec; /* and microseconds */
- };
- #endif
- #endif
- int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
- int lwip_bind(int s, struct sockaddr *name, socklen_t namelen);
- int lwip_shutdown(int s, int how);
- int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
- int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
- int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
- int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
- int lwip_close(int s);
- int lwip_connect(int s, struct sockaddr *name, socklen_t namelen);
- int lwip_listen(int s, int backlog);
- int lwip_recv(int s, void *mem, int len, unsigned int flags);
- int lwip_read(int s, void *mem, int len);
- int lwip_recvfrom(int s, void *mem, int len, unsigned int flags,
- struct sockaddr *from, socklen_t *fromlen);
- int lwip_send(int s, void *dataptr, int size, unsigned int flags);
- int lwip_sendto(int s, void *dataptr, int size, unsigned int flags,
- struct sockaddr *to, socklen_t tolen);
- int lwip_socket(int domain, int type, int protocol);
- int lwip_write(int s, void *dataptr, int size);
- int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
- struct timeval *timeout);
- int lwip_ioctl(int s, long cmd, void *argp);
- #if LWIP_COMPAT_SOCKETS
- #define accept(a,b,c) lwip_accept(a,b,c)
- #define bind(a,b,c) lwip_bind(a,b,c)
- #define shutdown(a,b) lwip_shutdown(a,b)
- #define close(s) lwip_close(s)
- #define connect(a,b,c) lwip_connect(a,b,c)
- #define getsockname(a,b,c) lwip_getsockname(a,b,c)
- #define getpeername(a,b,c) lwip_getpeername(a,b,c)
- #define setsockopt(a,b,c,d,e) lwip_setsockopt(a,b,c,d,e)
- #define getsockopt(a,b,c,d,e) lwip_getsockopt(a,b,c,d,e)
- #define listen(a,b) lwip_listen(a,b)
- #define recv(a,b,c,d) lwip_recv(a,b,c,d)
- #define read(a,b,c) lwip_read(a,b,c)
- #define recvfrom(a,b,c,d,e,f) lwip_recvfrom(a,b,c,d,e,f)
- #define send(a,b,c,d) lwip_send(a,b,c,d)
- #define sendto(a,b,c,d,e,f) lwip_sendto(a,b,c,d,e,f)
- #define socket(a,b,c) lwip_socket(a,b,c)
- #define write(a,b,c) lwip_write(a,b,c)
- #define select(a,b,c,d,e) lwip_select(a,b,c,d,e)
- #define ioctlsocket(a,b,c) lwip_ioctl(a,b,c)
- #endif /* LWIP_COMPAT_SOCKETS */
- #endif /* __LWIP_SOCKETS_H__ */