/**************************************************************************** * net/net.h * * Copyright (C) 2007-2009, 2011-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "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 * COPYRIGHT OWNER OR CONTRIBUTORS 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. * ****************************************************************************/ #ifndef _NET_NET_H #define _NET_NET_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifdef CONFIG_NET #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Definitions of 8-bit socket flags */ /* Bits 0-2: Socket state */ #define _SF_IDLE 0x00 /* - There is no socket activity */ #define _SF_ACCEPT 0x01 /* - Socket is waiting to accept a connection */ #define _SF_RECV 0x02 /* - Waiting for recv action to complete */ #define _SF_SEND 0x03 /* - Waiting for send action to complete */ #define _SF_MASK 0x03 /* - Mask to isolate the above actions */ #define _SF_NONBLOCK 0x08 /* Bit 3: Don't block if no data (TCP/READ only) */ #define _SF_LISTENING 0x10 /* Bit 4: SOCK_STREAM is listening */ #define _SF_BOUND 0x20 /* Bit 5: SOCK_STREAM is bound to an address */ /* Bits 6-7: Connection state */ #define _SF_CONNECTED 0x40 /* Bit 6: SOCK_STREAM is connected */ #define _SF_CLOSED 0x80 /* Bit 7: SOCK_STREAM was gracefully disconnected */ /* Connection state encoding: * * _SF_CONNECTED==1 && _SF_CLOSED==0 - the socket is connected * _SF_CONNECTED==0 && _SF_CLOSED==1 - the socket was gracefully disconnected * _SF_CONNECTED==0 && _SF_CLOSED==0 - the socket was rudely disconnected */ /* Macro to manage the socket state and flags */ #define _SS_SETSTATE(s,f) (((s) & ~_SF_MASK) | (f)) #define _SS_GETSTATE(s) ((s) & _SF_MASK) #define _SS_ISBUSY(s) (_SS_GETSTATE(s) != _SF_IDLE) #define _SS_ISNONBLOCK(s) (((s) & _SF_NONBLOCK) != 0) #define _SS_ISLISTENING(s) (((s) & _SF_LISTENING) != 0) #define _SS_ISBOUND(s) (((s) & _SF_CONNECTED) != 0) #define _SS_ISCONNECTED(s) (((s) & _SF_CONNECTED) != 0) #define _SS_ISCLOSED(s) (((s) & _SF_CLOSED) != 0) /* This macro converts a socket option value into a bit setting */ #define _SO_BIT(o) (1 << (o)) /* These define bit positions for each socket option (see sys/socket.h) */ #define _SO_DEBUG _SO_BIT(SO_DEBUG) #define _SO_ACCEPTCONN _SO_BIT(SO_ACCEPTCONN) #define _SO_BROADCAST _SO_BIT(SO_BROADCAST) #define _SO_REUSEADDR _SO_BIT(SO_REUSEADDR) #define _SO_KEEPALIVE _SO_BIT(SO_KEEPALIVE) #define _SO_LINGER _SO_BIT(SO_LINGER) #define _SO_OOBINLINE _SO_BIT(SO_OOBINLINE) #define _SO_SNDBUF _SO_BIT(SO_SNDBUF) #define _SO_RCVBUF _SO_BIT(SO_RCVBUF) #define _SO_ERROR _SO_BIT(SO_ERROR) #define _SO_TYPE _SO_BIT(SO_TYPE) #define _SO_DONTROUTE _SO_BIT(SO_DONTROUTE) #define _SO_RCVLOWAT _SO_BIT(SO_RCVLOWAT) #define _SO_RCVTIMEO _SO_BIT(SO_RCVTIMEO) #define _SO_SNDLOWAT _SO_BIT(SO_SNDLOWAT) #define _SO_SNDTIMEO _SO_BIT(SO_SNDTIMEO) /* This is the larget option value */ #define _SO_MAXOPT (15) /* Macros to set, test, clear options */ #define _SO_SETOPT(s,o) ((s) |= _SO_BIT(o)) #define _SO_CLROPT(s,o) ((s) &= ~_SO_BIT(o)) #define _SO_GETOPT(s,o) (((s) & _SO_BIT(o)) != 0) /* These are macros that can be used to determine if socket option code is * valid (in range) and supported by API. */ #define _SO_GETONLYSET (_SO_ACCEPTCONN|_SO_ERROR|_SO_TYPE) #define _SO_GETONLY(o) ((_SO_BIT(o) & _SO_GETONLYSET) != 0) #define _SO_GETVALID(o) (((unsigned int)(o)) <= _SO_MAXOPT) #define _SO_SETVALID(o) ((((unsigned int)(o)) <= _SO_MAXOPT) && !_SO_GETONLY(o)) /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Public Variables ****************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /**************************************************************************** * Public Function Prototypes ****************************************************************************/ /* net_sockets.c *************************************************************/ int sockfd_allocate(int minsd); void sock_release(FAR struct socket *psock); void sockfd_release(int sockfd); FAR struct socket *sockfd_socket(int sockfd); /* net_connect.c *************************************************************/ #ifdef CONFIG_NET_TCP struct tcp_conn_s; /* Forward reference */ int net_startmonitor(FAR struct socket *psock); void net_stopmonitor(FAR struct tcp_conn_s *conn); void net_lostconnection(FAR struct socket *psock, uint16_t flags); #endif /* net_close.c ***************************************************************/ int psock_close(FAR struct socket *psock); /* sockopt support ***********************************************************/ #if defined(CONFIG_NET_SOCKOPTS) && !defined(CONFIG_DISABLE_CLOCK) int net_timeo(uint32_t start_time, socktimeo_t timeo); socktimeo_t net_timeval2dsec(FAR struct timeval *tv); #endif /* send.c ********************************************************************/ ssize_t psock_send(FAR struct socket *psock, FAR const void *buf, size_t len, int flags); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* CONFIG_NET */ #endif /* _NET_NET_H */