/* Sometimes, httpd becomes inaccessible, try to re-run it */
static void httpd_process_check(void)
{
int httpd_is_run = pids("httpd");
if (!httpd_is_run)
httpd_missing++;
else
httpd_missing = 0;
if (httpd_missing == 1)
return;
if (!httpd_is_run
#ifdef HTTPD_CHECK
|| !httpd_check_v2()
#endif
)
{
printf("## restart httpd ##\n");
httpd_missing = 0;
stop_httpd();
#ifdef HTTPD_CHECK
system("killall -9 httpd");
sleep(1);
remove(DETECT_HTTPD_FILE);
#endif
start_httpd(0);
}
}
/* Sometimes, httpd becomes inaccessible, try to re-run it */
httpd_processcheck(void)
{
int httpd_is_missing = !pids("httpd");
if (httpd_is_missing)
printf("## httpd is gone! ##\n");
#ifndef ASUS_DDNS
if (httpd_is_missing
#ifdef HTTPD_CHECK
|| !httpd_check_v2()
#endif
)
#else // 2007.03.27 Yau add for prevent httpd die when doing hostname check
if (httpd_is_missing
#ifdef HTTPD_CHECK
|| (/*!nvram_match("httpd_check_ddns", "1") && */!httpd_check_v2())
#endif
)
#endif
{
printf("## restart httpd ##\n");
stop_httpd();
sleep(1);
#ifdef HTTPD_CHECK
if (pids("httpdcheck"))
system("killall -SIGTERM httpdcheck");
remove(DETECT_HTTPD_FILE);
#endif
start_httpd();
}
}
void
stop_services(int stopall)
{
if (stopall) {
stop_telnetd();
#if defined(APP_SSHD)
stop_sshd();
#endif
stop_httpd();
stop_vpn_server();
}
#if (BOARD_NUM_USB_PORTS > 0)
stop_p910nd();
#if defined(SRV_LPRD)
stop_lpd();
#endif
#if defined(SRV_U2EC)
stop_u2ec();
#endif
#endif
stop_networkmap();
stop_lltd();
stop_detect_internet();
stop_rstats();
stop_infosvr();
stop_igmpproxy(NULL);
}
void full_restart_ipv6(int ipv6_type_old)
{
int ipv6_type = get_ipv6_type();
int ipv6_toggled = ((ipv6_type == IPV6_DISABLED || ipv6_type_old == IPV6_DISABLED) && (ipv6_type != ipv6_type_old)) ? 1 : 0;
if (ipv6_toggled) {
stop_lltd();
stop_httpd();
}
stop_upnp();
stop_dhcp6c();
stop_dns_dhcpd();
if (ipv6_type == IPV6_DISABLED) {
clear_all_route6();
clear_all_addr6();
clear_if_neigh6(IFNAME_BR);
stop_sit_tunnel();
reset_lan6_vars();
reset_wan6_vars();
control_if_ipv6_all(0);
set_libc_gai(1);
update_resolvconf(0, 1);
reload_nat_modules();
restart_firewall();
start_dns_dhcpd(0);
} else {
set_libc_gai(0);
control_if_ipv6_all(1);
clear_all_addr6();
reset_lan6_vars();
reload_lan_addr6();
full_restart_wan();
if (!is_dns_dhcpd_run())
start_dns_dhcpd(0);
}
if (ipv6_toggled) {
start_httpd(0);
start_lltd();
}
}
/* Sometimes, httpd becomes inaccessible, try to re-run it */
static void httpd_processcheck(void)
{
int httpd_is_missing = !pids("httpd");
if (httpd_is_missing
#ifdef HTTPD_CHECK
|| !httpd_check_v2()
#endif
)
{
printf("## restart httpd ##\n");
stop_httpd();
#ifdef HTTPD_CHECK
system("killall -9 httpd");
sleep(1);
remove(DETECT_HTTPD_FILE);
#endif
start_httpd(0);
}
}
/**
* Start and stop the monit http server
* @param action START_HTTP or STOP_HTTP
*/
void monit_http(int action) {
int status;
switch(action) {
case STOP_HTTP:
if(!running) break;
LogInfo("Shutting down %s HTTP server\n", prog);
stop_httpd();
if( (status= pthread_join(thread, NULL)) != 0) {
LogError("%s: Failed to stop the http server. Thread error -- %s.\n",
prog, strerror(status));
} else {
LogInfo("%s HTTP server stopped\n", prog);
running = FALSE;
}
break;
case START_HTTP:
LogInfo("Starting %s HTTP server at [%s:%d]\n",
prog, Run.bind_addr?Run.bind_addr:"*", Run.httpdport);
if( (status= pthread_create(&thread, NULL, thread_wrapper, NULL)) != 0) {
LogError("%s: Failed to create the http server. Thread error -- %s.\n",
prog, strerror(status));
} else {
LogInfo("%s HTTP server started\n", prog);
running = TRUE;
}
break;
default:
LogError("%s: Unknown http server action\n", prog);
break;
}
return;
}
/* wathchdog is runned in NORMAL_PERIOD, 1 seconds
* check in each NORMAL_PERIOD
* 1. button
*
* check in each NORAML_PERIOD*10
*
* 1. ntptime
* 2. time-dependent service
* 3. http-process
* 4. usb hotplug status
*/
void watchdog(void)
{
/* handle button */
btn_check();
/* if timer is set to less than 1 sec, then bypass the following */
if (itv.it_value.tv_sec == 0) return;
if (nvram_match("asus_mfg", "1"))
{
system("rmmod hw_nat");
if (pids("ntp"))
system("killall -SIGTERM ntp");
if (pids("ntpclient"))
system("killall ntpclient");
if (pids("udhcpc"))
system("killall -SIGTERM udhcpc");
#if (!defined(W7_LOGO) && !defined(WIFI_LOGO))
if (pids("ots"))
system("killall ots");
#endif
stop_wanduck();
stop_logger();
stop_upnp(); // it may cause upnp cannot run
stop_dhcpd();
stop_dns();
#if (!defined(W7_LOGO) && !defined(WIFI_LOGO))
stop_pspfix();
#endif
stop_wsc();
stop_wsc_2g();
stop_lltd();
stop_networkmap();
stop_httpd();
stop_lpd();
stop_u2ec();
kill_pidfile_s("/var/run/linkstatus_monitor.pid", SIGTERM);
if (pids("detectWan"))
system("killall detectWan");
#if (!defined(W7_LOGO) && !defined(WIFI_LOGO))
stop_rstats();
kill_pidfile_s("/var/run/detect_internet.pid", SIGTERM);
#endif
if (pids("tcpcheck"))
system("killall -SIGTERM tcpcheck");
#ifdef HTTPD_CHECK
if (pids("httpdcheck"))
system("killall -SIGTERM httpdcheck");
#endif
if (pids("traceroute"))
system("killall traceroute");
if (pids("usbled"))
system("killall -SIGTERM usbled");
nvram_set("asus_mfg", "2");
}
#if 0
// reboot signal checking
if (nvram_match("reboot", "1"))
{
printf("[watchdog] nvram match reboot\n");
reboot_count++;
if (reboot_count >= 2)
{
// kill(1, SIGTERM);
sys_exit();
}
return;
}
#else
if (nvram_match("reboot", "1")) return;
#endif
if (stop_service_type_99) return;
if (!nvram_match("asus_mfg", "0")) return;
watchdog_period = (watchdog_period + 1) % 10;
if (watchdog_period) return;
#ifdef BTN_SETUP
if (btn_pressed_setup >= BTNSETUP_START) return;
#endif
#if (!defined(W7_LOGO) && !defined(WIFI_LOGO))
if (count_to_stop_wps > 0)
{
count_to_stop_wps--;
if (!count_to_stop_wps)
{
// if (nvram_match("wl_radio_x", "1"))
stop_wsc(); // psp fix
// if (nvram_match("rt_radio_x", "1"))
stop_wsc_2g(); // psp fix
nvram_set("wps_enable", "0"); // psp fix
}
}
#endif
ddns_timer = (ddns_timer + 1) % 4320;
if (nvram_match("asus_debug", "1"))
mem_timer = (mem_timer + 1) % 60;
if (!watchdog_count)
watchdog_count++;
else if (watchdog_count++ == 1)
{
#if 0
if (!strcmp(nvram_safe_get("rc_service"), "restart_upnp"))
service_handle();
else
#endif
if ( nvram_match("router_disable", "0") &&
nvram_match("upnp_enable", "1") &&
nvram_match("upnp_started", "0") )
{
// if (has_wan_ip())
{
dbg("[watchdog] starting upnp...\n");
stop_upnp();
start_upnp();
}
}
}
/* check for time-dependent services */
svc_timecheck();
/* http server check */
httpd_processcheck();
u2ec_processcheck();
media_processcheck();
#if 0
samba_processcheck();
#endif
pppd_processcheck();
if (nvram_match("wan_route_x", "IP_Routed"))
nm_processcheck();
cpu_usage_minotor();
dm_block_chk();
if (nvram_match("asus_debug", "1") && !mem_timer)
{
print_num_of_connections();
dbg("Hardware NAT: %s\n", is_hwnat_loaded() ? "Enabled": "Disabled");
dbg("Software QoS: %s\n", nvram_match("qos_enable", "1") ? "Enabled": "Disabled");
dbg("pppd running: %s\n", pids("pppd") ? "Yes": "No");
#if 0
dbg("CPU usage: %d%%\n", get_cpu_usage());
#else
dbg("CPU usage: %d%%\n", cpu_main(0, NULL, 0));
#endif
system("free");
system("date");
print_uptime();
}
#ifdef CDMA
/* CDMA_DOWN = 99, none
* CDMA_DOWN = 1, currently down
* CDMA_DOWN = 2, currently up
* CDMA_DOWN = 0, currently trying to connect
*/
if (nvram_match("cdma_down", "1"))
{
logmessage("CDMA client", "cdma is down(%d)!", cdma_down);
cdma_down++;
cdma_connec t = 0;
if (cdma_down == 2)
{
printf("[watchdog] stop wan\n");
stop_wan();
start_wan();
}
else if (cdma_down >= 12) /* 2 minutes timeout for retry */
{
cdma_down = 0;
}
}
else if (nvram_match("cdma_down", "0"))
{
logmessage("CDMA client", "cdma try connect(%d)!", cdma_connect);
cdma_down = 0;
cdma_connect++;
if (cdma_connect > 12) /* 2 minitues timeout for connecting */
{
nvram_set("cdma_down", "1");
}
}
else
{
cdma_down = 0;
cdma_connect = 0;
}
#endif
if (nvram_match("wan_route_x", "IP_Routed"))
{
if (!is_phyconnected() || !has_wan_ip())
return;
/* sync time to ntp server if necessary */
if (!nvram_match("wan_dns_t", "") && !nvram_match("wan_gateway_t", ""))
{
ntp_timesync();
}
if ( nvram_match("ddns_enable_x", "1") &&
(!nvram_match("ddns_updated", "1") || !ddns_timer)
)
{
logmessage("RT-N56U", "[start ddns] watchdog");
start_ddns();
}
if (!ddns_timer)
{
stop_networkmap();
start_networkmap();
}
}
else
{
if (/*!nvram_match("lan_dns_t", "") && */!nvram_match("lan_gateway_t", ""))
ntp_timesync();
}
}
void
restart_httpd(void)
{
stop_httpd();
start_httpd(1);
}