incubator-nuttx/net/devif/devif_initialize.c

172 lines
5.3 KiB
C

/****************************************************************************
* net/devif/devif_initialize.c
*
* Copyright (C) 2007-2011, 2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Adapted for NuttX from logic in uIP which also has a BSD-like license:
*
* Original author Adam Dunkels <adam@dunkels.com>
* Copyright () 2001-2003, Adam Dunkels.
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#ifdef CONFIG_NET
#include <stdint.h>
#include <nuttx/clock.h>
#include <nuttx/net/netstats.h>
#include <nuttx/net/ip.h>
#include "devif/devif.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/* IP/TCP/UDP/ICMP statistics for all network interfaces */
#ifdef CONFIG_NET_STATISTICS
struct net_stats_s g_netstats;
#endif
/* Increasing number used for the IP ID field. */
uint16_t g_ipid;
#if defined(CONFIG_NET_IPv4) && defined(CONFIG_NET_TCP_REASSEMBLY)
/* Reassembly timer (units: deci-seconds) */
uint8_t g_reassembly_timer;
#endif
#ifdef CONFIG_NET_IPv6
const net_ipv6addr_t g_ipv6_alloneaddr = /* An address of all ones */
{
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff
};
const net_ipv6addr_t g_ipv6_allzeroaddr = /* An address of all zeroes */
{
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
};
#if defined(CONFIG_NET_ICMPv6_AUTOCONF) || defined(CONFIG_NET_ICMPv6_ROUTER)
/* IPv6 Multi-cast IP addresses */
const net_ipv6addr_t g_ipv6_allnodes = /* All link local nodes */
{
HTONS(0xff02),
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
HTONS(0x0001)
};
const net_ipv6addr_t g_ipv6_allrouters = /* All link local routers */
{
HTONS(0xff02),
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
HTONS(0x0002)
};
#ifdef CONFIG_NET_ICMPv6_AUTOCONF
/* Link-Local Address: Link-local addresses have "1111 1110 10" for the
* first ten bits followed by 54 zeroes and then the 64 bit interface
* identifier (typically derived from the data link layer address).
*/
const net_ipv6addr_t g_ipv6_llnetmask = /* Netmask for local link address */
{
0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000
};
#endif /* CONFIG_NET_ICMPv6_AUTOCONF */
#ifdef CONFIG_NET_ETHERNET
/* IPv6 Multi-cast Ethernet addresses. Formed from the 16-bit prefix:
*
* 0x33:0x33:xx:xx:xx:xx:
*
* and the last 32-bits of the IPv6 IP address
*/
const struct ether_addr g_ipv6_ethallnodes = /* All link local nodes */
{
{ 0x33, 0x33, 0x00, 0x00, 0x00, 0x01 }
};
const struct ether_addr g_ipv6_ethallrouters = /* All link local routers */
{
{ 0x33, 0x33, 0x00, 0x00, 0x00, 0x02 }
};
#endif /* CONFIG_NET_ETHERNET */
#endif /* CONFIG_NET_ICMPv6_AUTOCONF || CONFIG_NET_ICMPv6_ROUTER */
#endif /* CONFIG_NET_IPv4 */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: devif_initialize
*
* Description:
* Perform initialization of the network device interface layer
*
* Parameters:
* None
*
* Return:
* None
*
****************************************************************************/
void devif_initialize(void)
{
/* Initialize the time of the last timer poll */
g_polltime = clock_systimer();
/* Initialize callback support */
devif_callback_init();
}
#endif /* CONFIG_NET */