/**************************************************************************** * net/net_internal.h * * Copyright (C) 2007-2009 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_INTERNAL_H #define __NET_INTERNAL_H /**************************************************************************** * Included Files ****************************************************************************/ #include #ifdef CONFIG_NET #include #include #include /**************************************************************************** * 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 */ /* Bits 3:4 : unused */ #define _SF_LISTENING 0x20 /* Bit 5: SOCK_STREAM is listening */ #define _SF_BOUND 0x40 /* Bit 6: SOCK_STREAM is bound to an address */ #define _SF_CONNECTED 0x80 /* Bit 7: SOCK_STREAM is connected */ /* 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_ISLISTENING(s) (((s) & _SF_LISTENING) != 0) #define _SS_ISBOUND(s) (((s) & _SF_CONNECTED) != 0) #define _SS_ISCONNECTED(s) (((s) & _SF_CONNECTED) != 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 ****************************************************************************/ /* List of registered ethernet device drivers */ #if CONFIG_NSOCKET_DESCRIPTORS > 0 extern struct uip_driver_s *g_netdevices; extern sem_t g_netdev_sem; #endif /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /* net_sockets.c *************************************************************/ EXTERN int sockfd_allocate(void); EXTERN void sockfd_release(int sockfd); EXTERN FAR struct socket *sockfd_socket(int sockfd); /* sockopt support ***********************************************************/ #if defined(CONFIG_NET_SOCKOPTS) && !defined(CONFIG_DISABLE_CLOCK) EXTERN int net_timeo(uint32 start_time, socktimeo_t timeo); EXTERN socktimeo_t net_timeval2dsec(struct timeval *tv); EXTERN void net_dsec2timeval(uint16 dsec, struct timeval *tv); #endif /* net_register.c ************************************************************/ #if CONFIG_NSOCKET_DESCRIPTORS > 0 EXTERN void netdev_semtake(void); # define netdev_semgive() sem_post(&g_netdev_sem) #endif /* net_findbyname.c **********************************************************/ #if CONFIG_NSOCKET_DESCRIPTORS > 0 EXTERN FAR struct uip_driver_s *netdev_findbyname(const char *ifname); #endif /* net_findbyaddr.c **********************************************************/ #if CONFIG_NSOCKET_DESCRIPTORS > 0 EXTERN FAR struct uip_driver_s *netdev_findbyaddr(const uip_ipaddr_t *raddr); #endif /* net_txnotify.c ************************************************************/ #if CONFIG_NSOCKET_DESCRIPTORS > 0 EXTERN void netdev_txnotify(const uip_ipaddr_t *raddr); #endif /* net_count.c ***************************************************************/ #if CONFIG_NSOCKET_DESCRIPTORS > 0 EXTERN int netdev_count(void); #endif /* net_arptimer.c ************************************************************/ EXTERN void arptimer_init(void); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* CONFIG_NET */ #endif /* __NET_INTERNAL_H */