15f6e1d7a3
This commit changes the method of accessing the default v6 prefix. Instead of always using `UIP_DS6_DEFAULT_PREFIX`, we store the default prefix in a variable. We subsequently retrieve the prefix by calling `uip_ds6_default_prefix()`. `uip_ds6_init()` will set this variable to the value of `UIP_DS6_DEFAULT_PREFIX`, but only if the startup code has not set a different default prefix before `uip_ds6_init()` gets called. This approach has the following benefits: * It allows us to change the default prefix at run time. * It allows the startup code to set a prefix different than the one specified by `UIP_DS6_DEFAULT_PREFIX`, which can be useful if the default prefix comes from a different source (e.g. the command line for native, or a configuration stored on a node's flash) * In many places the current code assumes that the prefix contains 6 bytes of zeros (e.g. `FDxx::/64`). Changing to a different prefix (e.g. `FD00:ABCD::`) would need extensive code changes. This change here makes it easy to use a prefix of any length.
337 lines
8.5 KiB
C
337 lines
8.5 KiB
C
/*
|
|
* Copyright (c) 2002, 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.
|
|
*
|
|
* This file is part of the Contiki OS
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \ingroup platform
|
|
*
|
|
* \defgroup native_platform Native platform
|
|
*
|
|
* Platform running in the host (Windows or Linux) environment.
|
|
*
|
|
* Used mainly for development and debugging.
|
|
* @{
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/select.h>
|
|
#include <errno.h>
|
|
|
|
#ifdef __CYGWIN__
|
|
#include "net/wpcap-drv.h"
|
|
#endif /* __CYGWIN__ */
|
|
|
|
#include "contiki.h"
|
|
#include "net/netstack.h"
|
|
|
|
#include "dev/serial-line.h"
|
|
#include "dev/button-hal.h"
|
|
#include "dev/gpio-hal.h"
|
|
#include "dev/leds.h"
|
|
|
|
#include "net/ipv6/uip.h"
|
|
#include "net/ipv6/uip-debug.h"
|
|
#include "net/queuebuf.h"
|
|
|
|
#if NETSTACK_CONF_WITH_IPV6
|
|
#include "net/ipv6/uip-ds6.h"
|
|
#endif /* NETSTACK_CONF_WITH_IPV6 */
|
|
|
|
/* Log configuration */
|
|
#include "sys/log.h"
|
|
#define LOG_MODULE "Native"
|
|
#define LOG_LEVEL LOG_LEVEL_MAIN
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \name Native Platform Configuration
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/*
|
|
* Defines the maximum number of file descriptors monitored by the platform
|
|
* main loop.
|
|
*/
|
|
#ifdef SELECT_CONF_MAX
|
|
#define SELECT_MAX SELECT_CONF_MAX
|
|
#else
|
|
#define SELECT_MAX 8
|
|
#endif
|
|
|
|
/*
|
|
* Defines the timeout (in msec) of the select operation if no monitored file
|
|
* descriptors becomes ready.
|
|
*/
|
|
#ifdef SELECT_CONF_TIMEOUT
|
|
#define SELECT_TIMEOUT SELECT_CONF_TIMEOUT
|
|
#else
|
|
#define SELECT_TIMEOUT 1000
|
|
#endif
|
|
|
|
/*
|
|
* Adds the STDIN file descriptor to the list of monitored file descriptors.
|
|
*/
|
|
#ifdef SELECT_CONF_STDIN
|
|
#define SELECT_STDIN SELECT_CONF_STDIN
|
|
#else
|
|
#define SELECT_STDIN 1
|
|
#endif
|
|
/** @} */
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
static const struct select_callback *select_callback[SELECT_MAX];
|
|
static int select_max = 0;
|
|
|
|
#ifdef PLATFORM_CONF_MAC_ADDR
|
|
static uint8_t mac_addr[] = PLATFORM_CONF_MAC_ADDR;
|
|
#else /* PLATFORM_CONF_MAC_ADDR */
|
|
static uint8_t mac_addr[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
|
|
#endif /* PLATFORM_CONF_MAC_ADDR */
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
select_set_callback(int fd, const struct select_callback *callback)
|
|
{
|
|
int i;
|
|
if(fd >= 0 && fd < SELECT_MAX) {
|
|
/* Check that the callback functions are set */
|
|
if(callback != NULL &&
|
|
(callback->set_fd == NULL || callback->handle_fd == NULL)) {
|
|
callback = NULL;
|
|
}
|
|
|
|
select_callback[fd] = callback;
|
|
|
|
/* Update fd max */
|
|
if(callback != NULL) {
|
|
if(fd > select_max) {
|
|
select_max = fd;
|
|
}
|
|
} else {
|
|
select_max = 0;
|
|
for(i = SELECT_MAX - 1; i > 0; i--) {
|
|
if(select_callback[i] != NULL) {
|
|
select_max = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#if SELECT_STDIN
|
|
static int
|
|
stdin_set_fd(fd_set *rset, fd_set *wset)
|
|
{
|
|
FD_SET(STDIN_FILENO, rset);
|
|
return 1;
|
|
}
|
|
static void
|
|
stdin_handle_fd(fd_set *rset, fd_set *wset)
|
|
{
|
|
char c;
|
|
if(FD_ISSET(STDIN_FILENO, rset)) {
|
|
if(read(STDIN_FILENO, &c, 1) > 0) {
|
|
serial_line_input_byte(c);
|
|
}
|
|
}
|
|
}
|
|
const static struct select_callback stdin_fd = {
|
|
stdin_set_fd, stdin_handle_fd
|
|
};
|
|
#endif /* SELECT_STDIN */
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
set_lladdr(void)
|
|
{
|
|
linkaddr_t addr;
|
|
|
|
memset(&addr, 0, sizeof(linkaddr_t));
|
|
#if NETSTACK_CONF_WITH_IPV6
|
|
memcpy(addr.u8, mac_addr, sizeof(addr.u8));
|
|
#else
|
|
int i;
|
|
for(i = 0; i < sizeof(linkaddr_t); ++i) {
|
|
addr.u8[i] = mac_addr[7 - i];
|
|
}
|
|
#endif
|
|
linkaddr_set_node_addr(&addr);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#if NETSTACK_CONF_WITH_IPV6
|
|
static void
|
|
set_global_address(void)
|
|
{
|
|
uip_ipaddr_t ipaddr;
|
|
const uip_ipaddr_t *default_prefix = uip_ds6_default_prefix();
|
|
|
|
/* Assign a unique local address (RFC4193,
|
|
http://tools.ietf.org/html/rfc4193). */
|
|
uip_ip6addr_copy(&ipaddr, default_prefix);
|
|
|
|
/* Assumes that the uip_lladdr is set */
|
|
uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
|
|
uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
|
|
|
|
LOG_INFO("Added global IPv6 address ");
|
|
LOG_INFO_6ADDR(&ipaddr);
|
|
LOG_INFO_("\n");
|
|
|
|
/* set the PREFIX::1 address to the IF */
|
|
uip_ip6addr_copy(&ipaddr, default_prefix);
|
|
ipaddr.u8[15] = 1;
|
|
uip_ds6_defrt_add(&ipaddr, 0);
|
|
}
|
|
#endif
|
|
/*---------------------------------------------------------------------------*/
|
|
int contiki_argc = 0;
|
|
char **contiki_argv;
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
platform_process_args(int argc, char**argv)
|
|
{
|
|
/* crappy way of remembering and accessing argc/v */
|
|
contiki_argc = argc;
|
|
contiki_argv = argv;
|
|
|
|
/* native under windows is hardcoded to use the first one or two args */
|
|
/* for wpcap configuration so this needs to be "removed" from */
|
|
/* contiki_args (used by the native-border-router) */
|
|
#ifdef __CYGWIN__
|
|
contiki_argc--;
|
|
contiki_argv++;
|
|
#ifdef UIP_FALLBACK_INTERFACE
|
|
contiki_argc--;
|
|
contiki_argv++;
|
|
#endif
|
|
#endif
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
platform_init_stage_one()
|
|
{
|
|
gpio_hal_init();
|
|
button_hal_init();
|
|
leds_init();
|
|
return;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
platform_init_stage_two()
|
|
{
|
|
set_lladdr();
|
|
serial_line_init();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
platform_init_stage_three()
|
|
{
|
|
#if NETSTACK_CONF_WITH_IPV6
|
|
#ifdef __CYGWIN__
|
|
process_start(&wpcap_process, NULL);
|
|
#endif
|
|
|
|
set_global_address();
|
|
|
|
#endif /* NETSTACK_CONF_WITH_IPV6 */
|
|
|
|
/* Make standard output unbuffered. */
|
|
setvbuf(stdout, (char *)NULL, _IONBF, 0);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
platform_main_loop()
|
|
{
|
|
#if SELECT_STDIN
|
|
select_set_callback(STDIN_FILENO, &stdin_fd);
|
|
#endif /* SELECT_STDIN */
|
|
while(1) {
|
|
fd_set fdr;
|
|
fd_set fdw;
|
|
int maxfd;
|
|
int i;
|
|
int retval;
|
|
struct timeval tv;
|
|
|
|
retval = process_run();
|
|
|
|
tv.tv_sec = 0;
|
|
tv.tv_usec = retval ? 1 : SELECT_TIMEOUT;
|
|
|
|
FD_ZERO(&fdr);
|
|
FD_ZERO(&fdw);
|
|
maxfd = 0;
|
|
for(i = 0; i <= select_max; i++) {
|
|
if(select_callback[i] != NULL && select_callback[i]->set_fd(&fdr, &fdw)) {
|
|
maxfd = i;
|
|
}
|
|
}
|
|
|
|
retval = select(maxfd + 1, &fdr, &fdw, NULL, &tv);
|
|
if(retval < 0) {
|
|
if(errno != EINTR) {
|
|
perror("select");
|
|
}
|
|
} else if(retval > 0) {
|
|
/* timeout => retval == 0 */
|
|
for(i = 0; i <= maxfd; i++) {
|
|
if(select_callback[i] != NULL) {
|
|
select_callback[i]->handle_fd(&fdr, &fdw);
|
|
}
|
|
}
|
|
}
|
|
|
|
etimer_request_poll();
|
|
}
|
|
|
|
return;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
log_message(char *m1, char *m2)
|
|
{
|
|
fprintf(stderr, "%s%s\n", m1, m2);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
uip_log(char *m)
|
|
{
|
|
fprintf(stderr, "%s\n", m);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|