void refresh_ntpc(void)
{
if (nvram_match("wan_route_x", "IP_Routed") && (!has_wan_ip() || !found_default_route()))
return;
setenv("TZ", nvram_safe_get("time_zone_x"), 1);
if (pids("ntpclient"))
system("killall ntpclient");
if (!pids("ntp"))
{
stop_ntpc();
start_ntpc();
}
else
kill_pidfile_s("/var/run/ntp.pid", SIGTSTP);
}
int ipdown_main(int argc, char **argv)
{
int proto;
TRACE_PT("begin\n");
if (!wait_action_idle(10)) return -1;
stop_ddns(); // avoid to trigger DOD
stop_ntpc();
unlink("/tmp/ppp/link");
proto = get_wan_proto();
if (proto == WP_L2TP || proto == WP_PPTP) {
/* clear dns from the resolv.conf */
nvram_set("wan_get_dns","");
dns_to_resolv();
if (proto == WP_L2TP) {
route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"),
nvram_safe_get("wan_gateway"), "255.255.255.255"); // fixed routing problem in Israel by kanki
}
// Restore the default gateway for WAN interface
nvram_set("wan_gateway_get", nvram_safe_get("wan_gateway"));
// Set default route to gateway if specified
route_del(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
route_add(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
}
if (nvram_get_int("ppp_demand")) {
killall("listen", SIGKILL);
eval("listen", nvram_safe_get("lan_ifname"));
}
TRACE_PT("end\n");
return 1;
}
int ntp_main(int argc, char *argv[])
{
FILE *fp;
int ret;
pid_t pid;
char *args[] = {"ntpclient", "-h", servers, "-i", "3", "-l", "-s", NULL};
strcpy(servers, nvram_safe_get("ntp_server0"));
fp = fopen("/var/run/ntp.pid", "w");
if (fp == NULL)
exit(0);
fprintf(fp, "%d", getpid());
fclose(fp);
dbg("starting ntp...\n");
signal(SIGTSTP, catch_sig);
signal(SIGTERM, catch_sig);
signal(SIGCHLD, chld_reap);
nvram_set("ntp_ready", "0");
nvram_set("svc_ready", "0");
while (1)
{
if (sig_cur != -1)
{
pause();
}
else if (nvram_get_int("sw_mode") == SW_MODE_ROUTER &&
!nvram_match("link_internet", "1"))
{
sleep(NTP_RETRY_INTERVAL);
}
else if (strlen(servers))
{
stop_ntpc();
nvram_set("ntp_server_tried", servers);
ret = _eval(args, NULL, 0, &pid);
sleep(SECONDS_TO_WAIT);
if (strlen(nvram_safe_get("ntp_server0")))
{
if (server_idx)
strcpy(servers, nvram_safe_get("ntp_server1"));
else
strcpy(servers, nvram_safe_get("ntp_server0"));
server_idx = (server_idx + 1) % 2;
}
else strcpy(servers, "");
args[2] = servers;
if(nvram_get_int("ntp_ready"))
{
/* ntp sync every hour when time_zone set as "DST" */
if(strstr(nvram_safe_get("time_zone_x"), "DST")) {
struct tm local;
time_t now;
int diff_sec;
time(&now);
localtime_r(&now, &local);
// dbg("%s: %d-%d-%d, %d:%d:%d dst:%d\n", __FUNCTION__, local.tm_year+1900, local.tm_mon+1, local.tm_mday, local.tm_hour, local.tm_min, local.tm_sec, local.tm_isdst);
/* every hour */
if((local.tm_min != 0) || (local.tm_sec != 0)) {
/* compensate for the sleep(SECONDS_TO_WAIT) */
diff_sec = (3600 - SECONDS_TO_WAIT) - (local.tm_min * 60 + local.tm_sec);
if(diff_sec == 0) diff_sec = 3600 - SECONDS_TO_WAIT;
else if(diff_sec < 0) diff_sec = -diff_sec;
// dbg("diff_sec: %d \n", diff_sec);
sleep(diff_sec);
}
else sleep(3600 - SECONDS_TO_WAIT);
}
else /* every 12 hours */
{
sleep(3600 * 12 - SECONDS_TO_WAIT);
}
}
else
{
sleep(NTP_RETRY_INTERVAL - SECONDS_TO_WAIT);
}
}
else
{
pause();
}
}
}
/*
* Called when link goes down
*/
int ipdown_main(int argc, char **argv)
{
if (check_action() != ACT_IDLE)
return -1;
runStartup("/etc/config", ".ipdown");
#ifdef HAVE_REGISTER
if (isregistered_real())
#endif
{
#ifdef HAVE_RB500
runStartup("/usr/local/etc/config", ".ipdown");
#else
runStartup("/jffs/etc/config", ".ipdown");
runStartup("/mmc/etc/config", ".ipdown");
runStartup("/tmp/etc/config", ".ipdown");
#endif
}
stop_ddns();
stop_ntpc();
unlink("/tmp/ppp/link");
if (nvram_match("wan_proto", "l2tp")) {
/*
* clear dns from the resolv.conf
*/
nvram_set("wan_get_dns", "");
dns_to_resolv();
// todo
route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"), nvram_safe_get("wan_gateway_buf"), "255.255.255.255");
/*
* Restore the default gateway for WAN interface
*/
nvram_set("wan_gateway", nvram_safe_get("wan_gateway_buf"));
/*
* Set default route to gateway if specified
*/
route_add(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
}
if (nvram_match("wan_proto", "pptp")) {
eval("route", "del", "default");
nvram_set("wan_gateway", nvram_safe_get("wan_gateway_buf"));
eval("route", "add", "default", "gw", nvram_safe_get("wan_gateway"));
sysprintf("iptables -t nat -A POSTROUTING -o %s -j MASQUERADE\n", nvram_safe_get("pptp_ifname"));
}
#ifdef HAVE_3G
#if defined(HAVE_TMK) || defined(HAVE_BKM)
else if (nvram_match("wan_proto", "3g")) {
char *gpio3g = nvram_get("gpio3g");
if (gpio3g != NULL)
set_gpio(atoi(gpio3g), 0);
}
#endif
#endif
nvram_set("pppoe_ifname", "");
nvram_set("pppd_pppifname", "");
// write PPP traffic statistics to nvram if wanted
if (nvram_match("ppp_traffic", "1")) {
char buffer[64];
long long old_in, old_out;
long long in, out;
char *pin;
char *pout;
time_t stamp;
old_in = atol(nvram_safe_get("ppp_byte_in"));
old_out = atol(nvram_safe_get("ppp_byte_out"));
if ((pin = getenv("BYTES_RCVD")))
in = atol(pin);
else
in = 0;
if ((pout = getenv("BYTES_SENT")))
out = atol(pout);
else
out = 0;
in += old_in;
out += old_out;
snprintf(buffer, 63, "%lld", in);
nvram_set("ppp_byte_in", buffer);
snprintf(buffer, 63, "%lld", out);
nvram_set("ppp_byte_out", buffer);
if ((stamp = time(NULL)) < 1087818160) // clock is not set
// properly
stamp = 0;
snprintf(buffer, 63, "%ld", stamp);
nvram_set("ppp_byte_stamp", buffer);
nvram_commit();
}
if (nvram_match("ppp_demand", "1")
&& (nvram_match("wan_proto", "pptp")
|| nvram_match("wan_proto", "l2tp")
|| nvram_match("wan_proto", "pppoe"))) {
stop_process("listen", "activity listener");
eval("listen", nvram_safe_get("lan_ifname"));
}
return 1;
}