177 lines
6.1 KiB
C
177 lines
6.1 KiB
C
/****************************************************************************
|
|
* nuttx/net.h
|
|
*
|
|
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 __NUTTX_NET_H
|
|
#define __NUTTX_NET_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#ifdef CONFIG_NET
|
|
|
|
#include <semaphore.h>
|
|
|
|
#include <net/uip/uip.h>
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/* Socket descriptors are the index into the TCB sockets list, offset by the
|
|
* following amount. This offset is used to distinquish file descriptors from
|
|
* socket descriptors
|
|
*/
|
|
|
|
#ifdef CONFIG_NFILE_DESCRIPTORS
|
|
# define __SOCKFD_OFFSET CONFIG_NFILE_DESCRIPTORS
|
|
#else
|
|
# define __SOCKFD_OFFSET 0
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* This defines a bitmap big enough for one bit for each socket option */
|
|
|
|
typedef uint16 sockopt_t;
|
|
|
|
/* This defines the storage size of a timeout value. This effects only
|
|
* range of supported timeout values. With an LSB in seciseconds, the
|
|
* 16-bit maximum of 65535 corresponds to 1 hr 49 min 13.5 sec at decisecond
|
|
* resolution.
|
|
*/
|
|
|
|
typedef uint16 socktimeo_t;
|
|
|
|
/* This is the internal representation of a socket reference by a file
|
|
* descriptor.
|
|
*/
|
|
|
|
struct socket
|
|
{
|
|
int s_crefs; /* Reference count on the socket */
|
|
uint8 s_type; /* Protocol type: Only SOCK_STREAM or SOCK_DGRAM */
|
|
uint8 s_flags; /* See _SF_* definitions */
|
|
#ifdef CONFIG_NET_SOCKOPTS
|
|
sockopt_t s_options; /* Selected socket options */
|
|
#ifndef CONFIG_DISABLE_CLOCK
|
|
socktimeo_t s_rcvtimeo; /* Receive timeout value (in deciseconds) */
|
|
socktimeo_t s_sndtimeo; /* Send timeout value (in deciseconds) */
|
|
#endif
|
|
#endif
|
|
void *s_conn; /* Connection: struct uip_conn or uip_udp_conn */
|
|
};
|
|
|
|
/* This defines a list of sockets indexed by the socket descriptor */
|
|
|
|
#if CONFIG_NSOCKET_DESCRIPTORS > 0
|
|
struct socketlist
|
|
{
|
|
sem_t sl_sem; /* Manage access to the socket list */
|
|
sint16 sl_crefs; /* Reference count */
|
|
struct socket sl_sockets[CONFIG_NSOCKET_DESCRIPTORS];
|
|
};
|
|
#endif
|
|
|
|
/* This defines a bitmap big enough for one bit for each socket option */
|
|
|
|
typedef uint16 sockopt_t;
|
|
|
|
/* Callback from netdev_foreach() */
|
|
|
|
struct uip_driver_s; /* Forward reference. See net/uip/uip-arch.h */
|
|
typedef int (*netdev_callback_t)(FAR struct uip_driver_s *dev, void *arg);
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/* net_sockets.c *************************************************************/
|
|
/* There interfaces are called only from OS scheduling and iniialization logic
|
|
* under sched/
|
|
*/
|
|
|
|
EXTERN void weak_function net_initialize(void);
|
|
EXTERN FAR struct socketlist *net_alloclist(void);
|
|
EXTERN int net_addreflist(FAR struct socketlist *list);
|
|
EXTERN int net_releaselist(FAR struct socketlist *list);
|
|
|
|
/* net-close.c ***************************************************************/
|
|
/* The standard close() operation redirects operations on socket descriptors
|
|
* to this function.
|
|
*/
|
|
|
|
EXTERN int net_close(int sockfd);
|
|
|
|
/* net-ioctl.c ***************************************************************/
|
|
/* The standard ioctl() operation redirects operations on socket descriptors
|
|
* to this function.
|
|
*/
|
|
|
|
struct ifreq; /* Forward reference -- see net/ioctls.h */
|
|
EXTERN int netdev_ioctl(int sockfd, int cmd, struct ifreq *req);
|
|
|
|
/* netdev-register.c *********************************************************/
|
|
/* This function is called by network interface device drivers to inform the
|
|
* socket layer of their existence. This registration is necesary to support
|
|
* ioctl() operations on network devices to, for example, set MAC and IP
|
|
* addresses
|
|
*/
|
|
|
|
EXTERN int netdev_register(FAR struct uip_driver_s *dev);
|
|
|
|
/* net-foreach.c ************************************************************/
|
|
/* Enumerates all registered network devices */
|
|
|
|
EXTERN int netdev_foreach(netdev_callback_t callback, void *arg);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* CONFIG_NET */
|
|
#endif /* __NUTTX_NET_H */
|