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#include <stdio.h>
#include <errno.h>
#include <syslog.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <shutils.h>
#include <bcmnvram.h>
#include <rc.h>
#include <code_pattern.h>
#include <cy_conf.h>
#include <utils.h>
#include <bcmtimer.h>
#ifdef DEBUG_HEARTBEAT
#define MY_LOG syslog
#define MY_LOG1 eval
#else
#define MY_LOG(fmt, args...)
#define MY_LOG1(fmt, args...)
#endif
#define HB_TIMER 5
extern void timer_cancel(timer_t timerid);
int
start_heartbeat(int status)
{
FILE *fp;
int ret;
char authserver[80];
char authdomain[80];
char buf[254];
if(nvram_invmatch("wan_proto", "heartbeat")) return 0;
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "Start heartbeat daemon");
MY_LOG(LOG_DEBUG, "heartbeat: hb_server_ip[%s] wan_get_domain[%s]\n", nvram_safe_get("hb_server_ip"), nvram_safe_get("wan_get_domain"));
/* We must find out HB auth server from domain that get by dhcp if user don't input HB sever. */
if(nvram_invmatch("hb_server_ip", "") && nvram_invmatch("hb_server_ip", "0.0.0.0")){
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "tallest: Using user keyin HB server IP."); // by tallest debug 0210
snprintf(authserver, sizeof(authserver), "%s", nvram_safe_get("hb_server_ip"));
snprintf(authdomain, sizeof(authdomain), "%s", nvram_safe_get("wan_get_domain"));
}
else if(nvram_invmatch("wan_get_domain", " ")){ // NSW
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "tallest: Using nsw.bigpond.net.au"); // by tallest debug 0210
snprintf(authserver, sizeof(authserver), "sm-server.%s", nvram_safe_get("wan_get_domain"));
snprintf(authdomain, sizeof(authdomain), "%s", nvram_safe_get("wan_get_domain"));
}else{
MY_LOG(LOG_DEBUG, "heartbeat: Could not get heartbeat domain.\n");
}
MY_LOG(LOG_DEBUG, "heartbeat: authserver[%s] authdomain[%s]\n", authserver, authdomain);
snprintf(buf, sizeof(buf), "%s%c%s", authserver, !strcmp(authdomain,"") ? '\0' : '.', authdomain);
nvram_set("hb_server_name", buf);
MY_LOG(LOG_DEBUG, "heartbeat: Connect to HB server [%s]\n", buf);
//syslog(LOG_DEBUG, "heartbeat: authserver[%s] authdomain[%s]\n", authserver, authdomain);
if (!(fp = fopen("/tmp/bpalogin.conf", "w"))) {
MY_LOG(LOG_ERR, "heartbeat: Cann't write %s\n", "/tmp/bpalogin.conf");
perror("/tmp/bpalogin.conf");
return errno;
}
fprintf(fp, "username %s\n", nvram_safe_get("ppp_username"));
fprintf(fp, "password %s\n", nvram_safe_get("ppp_passwd"));
fprintf(fp, "authserver %s\n", authserver);
//fprintf(fp, "%cauthdomain %s\n", strcmp(authdomain,"") ? '\0' : '#', authdomain);
fprintf(fp, "authdomain %s\n", authdomain);
fprintf(fp, "localport 5050\n");
fprintf(fp, "logging stdout\n");
fprintf(fp, "debuglevel 4\n");
fprintf(fp, "minheartbeatinterval 60\n");
fprintf(fp, "maxheartbeatinterval 840\n");
fprintf(fp, "connectedprog hb_connect\n");
fprintf(fp, "disconnectedprog hb_disconnect\n");
fclose(fp);
mkdir("/tmp/ppp", 0777);
if((fp = fopen("/tmp/hb_connect_success", "r"))){
ret = eval("bpalogin", "-c", "/tmp/bpalogin.conf", "-t");
fclose(fp);
}
else
ret = eval("bpalogin", "-c", "/tmp/bpalogin.conf");
if (nvram_invmatch("ppp_demand", "1")) {
if(status != REDIAL)
start_redial();
}
return ret;
}
int
stop_heartbeat(void)
{
int ret;
unlink("/tmp/ppp/link");
ret = eval("killall", "bpalogin");
ret += eval("killall", "-9", "bpalogin");
dprintf("done\n");
return ret;
}
/*
* Called when link comes up
* argv[1] : listenport
* argv[2] : pid
*/
int
hb_connect_main(int argc, char **argv)
{
FILE *fp;
char buf[254];
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "hb_connect_main(): init");
mkdir("/tmp/ppp", 0777);
if (!(fp = fopen("/tmp/ppp/link", "a"))) {
perror("/tmp/ppp/link");
return errno;
}
fprintf(fp, "%s", argv[2]);
fclose(fp);
start_wan_done(nvram_safe_get("wan_ifname"));
snprintf(buf, sizeof(buf), "iptables -I INPUT -d %s -i %s -p udp --dport %d -j %s",
nvram_safe_get("wan_ipaddr"),
nvram_safe_get("wan_ifname"),
5050,
"ACCEPT");
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", buf);
system(buf);
return TRUE;
}
/*
* * Called when link goes down
* */
int
hb_disconnect_main(int argc, char **argv)
{
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "hb_disconnect_main(): init");
if(check_wan_link(0))
{
MY_LOG1("logger", "-p", "daemon.debug", "-t", "bpalogin[]", "tallest: Stop_wan in hb_disconnect_main function");// by tallest debug 0210
stop_heartbeat();
}
return 0;
}
int total_time = 0;
int last_num = 0;
void hb_main(timer_t t, int arg)
{
FILE *fp;
int num;
char line[80];
if(check_action() != ACT_IDLE)
return ;
if((fp = popen("iptables -L -n -v | grep lan2wan", "r"))){
fgets(line, sizeof(line), fp);
sscanf(line, "%d", &num);
//cprintf("total_time=%d last_num=%d num=%d\n", total_time, last_num, num);
if(num == last_num)
total_time = total_time + HB_TIMER;
else
total_time = 0;
last_num = num;
if(total_time >= atoi(nvram_safe_get("ppp_idletime"))*60) {
cprintf("The link is idle for %d seconds\n", atoi(nvram_safe_get("ppp_idletime"))*60);
timer_cancel(t);
stop_heartbeat();
stop_ntp();
eval("listen", nvram_safe_get("lan_ifname"));
}
pclose(fp);
}
}
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