int main(int argc, char **argv)
{
openlog("ntpc", LOG_PID, LOG_USER);
if (!nvram_contains_word("log_events", "ntp")) {
setlogmask(LOG_MASK(LOG_EMERG)); // can't set to 0
}
if (strstr(argv[0], "ntpsync") != NULL) return ntpsync_main(argc, argv);
if (strstr(argv[0], "ntpstep") != NULL) return ntpstep_main(argc, argv);
return ntpc_main(argc, argv);
}
int rcheck_main(int argc, char *argv[])
{
char buf[256];
char *p;
int sched_begin;
int sched_end;
int sched_dow;
time_t now;
struct tm *tms;
int now_dow;
int now_mins;
int n;
int nrule;
char comp;
int insch;
unsigned long long activated;
int count;
int radio;
int r;
#ifdef TCONFIG_IPV6
int r6;
#endif
#ifdef LINUX26
int ipt_active;
#endif
if (!nvram_contains_word("log_events", "acre")) {
setlogmask(LOG_MASK(LOG_EMERG)); // can't set to 0
}
simple_lock("restrictions");
now = time(0);
if (now < Y2K) {
if (!nvram_match("rrules_timewarn", "1")) {
nvram_set("rrules_timewarn", "1");
syslog(LOG_INFO, "Time not yet set. Only \"all day, everyday\" restrictions will be activated.");
}
now_mins = now_dow = 0;
}
else {
tms = localtime(&now);
now_dow = 1 << tms->tm_wday;
now_mins = (tms->tm_hour * 60) + tms->tm_min;
}
#ifdef LINUX26
ipt_active = 0;
#endif
activated = strtoull(nvram_safe_get("rrules_activated"), NULL, 16);
count = 0;
radio = foreach_wif(0, NULL, radio_on) ? -1 : -2;
for (nrule = 0; nrule < MAX_NRULES; ++nrule) {
sprintf(buf, "rrule%d", nrule);
if ((p = nvram_get(buf)) == NULL) continue;
if (sscanf(p, "%d|%d|%d|%d|%c", &n, &sched_begin, &sched_end, &sched_dow, &comp) != 5) continue;
if (n == 0) continue;
++count;
if (now < Y2K) {
if ((sched_begin >= 0) || (sched_end >= 0) || (sched_dow != 0x7F)) continue;
insch = 1;
}
else {
insch = in_sched(now_mins, now_dow, sched_begin, sched_end, sched_dow);
}
#ifdef LINUX26
if ((insch) && (comp != '~'))
++ipt_active;
#endif
n = 1 << nrule;
if ((insch) == ((activated & n) != 0)) {
continue;
}
syslog(LOG_INFO, "%sctivating rule %d", insch ? "A" : "Dea", nrule);
if (comp == '~') {
if ((radio != 0) && (radio != -2)) radio = !insch;
}
else {
sprintf(buf, "r%s%02d", (comp != '|') ? "dev" : "res", nrule);
r = eval("iptables", "-D", "restrict", "-j", buf);
if (insch) {
// ignore error above (if any)
r = eval("iptables", "-A", "restrict", "-j", buf);
}
#ifdef TCONFIG_IPV6
r6 = eval("ip6tables", "-D", "restrict", "-j", buf);
if (ipv6_enabled()) {
if (insch) {
// ignore error above (if any)
r6 = eval("ip6tables", "-A", "restrict", "-j", buf);
}
r |= r6;
}
#endif
if (r != 0) {
syslog(LOG_ERR, "Iptables: %sactivating chain \"%s\" failed. Retrying in 15 minutes.",
insch ? "" : "de", buf);
continue;
}
}
if (insch) activated |= n;
else activated &= ~n;
}
sprintf(buf, "%llx", activated);
nvram_set("rrules_activated", buf);
if (count > 0) {
if ((argc != 2) || (strcmp(argv[1], "--cron") != 0)) {
eval("cru", "a", "rcheck", "*/15 * * * * rcheck --cron");
}
}
else {
unsched_restrictions();
}
if (radio >= 0) {
nvram_set("rrules_radio", radio ? "0" : "1");
#if 1
// changed for dual radio support
_dprintf("%s: radio = %d\n", __FUNCTION__, radio);
eval("radio", radio ? "on" : "off");
#else
if (get_radio() != radio) {
_dprintf("%s: radio = %d\n", __FUNCTION__, radio);
eval("radio", radio ? "on" : "off");
}
else {
_dprintf("%s: no radio change = %d\n", __FUNCTION__, radio);
}
#endif
}
#ifdef LINUX26
allow_fastnat("restrictions", (ipt_active == 0));
try_enabling_fastnat();
#endif
simple_unlock("restrictions");
return 0;
}