int dhcpc_renew_main(int argc, char **argv)
{
int pid;
_dprintf("%s: begin\n", __FUNCTION__);
if (!using_dhcpc()) return 1;
if ((pid = pidof("udhcpc")) > 1) {
kill(pid, SIGUSR1);
f_write(renewing, NULL, 0, 0, 0);
}
else {
stop_dhcpc();
start_dhcpc();
}
_dprintf("%s: end\n", __FUNCTION__);
return 0;
}
void start_pptp(int status)
{
int ret;
FILE *fp;
char *pptp_argv[] = { "pppd",
NULL
};
char username[80], passwd[80];
stop_dhcpc();
#ifdef HAVE_PPPOE
stop_pppoe();
#endif
stop_vpn_modules();
snprintf(username, sizeof(username), "%s",
nvram_safe_get("ppp_username"));
snprintf(passwd, sizeof(passwd), "%s", nvram_safe_get("ppp_passwd"));
if (status != REDIAL) {
create_pptp_config(nvram_safe_get("pptp_server_name"),
username);
/*
* Generate pap-secrets file
*/
if (!(fp = fopen("/tmp/ppp/pap-secrets", "w"))) {
perror("/tmp/ppp/pap-secrets");
return;
}
fprintf(fp, "\"%s\" * \"%s\" *\n", username, passwd);
fclose(fp);
chmod("/tmp/ppp/pap-secrets", 0600);
/*
* Generate chap-secrets file
*/
if (!(fp = fopen("/tmp/ppp/chap-secrets", "w"))) {
perror("/tmp/ppp/chap-secrets");
return;
}
fprintf(fp, "\"%s\" * \"%s\" *\n", username, passwd);
fclose(fp);
chmod("/tmp/ppp/chap-secrets", 0600);
/*
* Enable Forwarding
*/
if ((fp = fopen("/proc/sys/net/ipv4/ip_forward", "r+"))) {
fputc('1', fp);
fclose(fp);
} else
perror("/proc/sys/net/ipv4/ip_forward");
}
char *wan_ifname = nvram_safe_get("wan_ifname");
if (isClient()) {
wan_ifname = getSTA();
}
nvram_set("pptp_ifname", wan_ifname);
/*
* Bring up WAN interface
*/
if (nvram_match("pptp_use_dhcp", "1")) {
// pid_t pid;
// char *wan_ipaddr;
// char *wan_netmask;
// char *wan_gateway;
// char *pptp_server_ip = nvram_safe_get ("pptp_server_ip");
// char *wan_hostname = nvram_safe_get ("wan_hostname");
nvram_set("wan_get_dns", "");
nvram_unset("dhcpc_done");
//dirty hack
start_dhcpc(wan_ifname, NULL, NULL, 1);
int timeout;
for (timeout = 60; !nvram_match("dhcpc_done", "1") && timeout > 0; --timeout) { /* wait for info from dhcp server */
sleep(1);
}
stop_dhcpc(); /* we don't need dhcp client anymore */
create_pptp_config(nvram_safe_get("pptp_server_ip"), username);
} else {
ifconfig(wan_ifname, IFUP, nvram_safe_get("wan_ipaddr"),
nvram_safe_get("wan_netmask"));
struct dns_lists *dns_list = NULL;
dns_to_resolv();
dns_list = get_dns_list();
int i = 0;
if (dns_list) {
for (i = 0; i < dns_list->num_servers; i++)
route_add(wan_ifname, 0,
dns_list->dns_server[i],
nvram_safe_get("pptp_wan_gateway"),
"255.255.255.255");
}
route_add(wan_ifname, 0, "0.0.0.0",
nvram_safe_get("pptp_wan_gateway"), "0.0.0.0");
char pptpip[64];
getIPFromName(nvram_safe_get("pptp_server_name"), pptpip);
route_del(wan_ifname, 0, "0.0.0.0",
nvram_safe_get("pptp_wan_gateway"), "0.0.0.0");
if (dns_list) {
for (i = 0; i < dns_list->num_servers; i++)
route_del(wan_ifname, 0,
dns_list->dns_server[i],
nvram_safe_get("pptp_wan_gateway"),
"255.255.255.255");
free(dns_list);
}
nvram_set("pptp_server_ip", pptpip);
if (!nvram_match("pptp_wan_gateway", "0.0.0.0"))
route_add(wan_ifname, 0,
nvram_safe_get("pptp_server_ip"),
nvram_safe_get("pptp_wan_gateway"),
"255.255.255.255");
}
ret = _evalpid(pptp_argv, NULL, 0, NULL);
if (nvram_match("ppp_demand", "1")) {
/*
* Trigger Connect On Demand if user press Connect button in Status
* page
*/
if (nvram_match("action_service", "start_pptp")
|| nvram_match("action_service", "start_l2tp")) {
start_force_to_dial();
// force_to_dial(nvram_safe_get("action_service"));
nvram_unset("action_service");
}
/*
* Trigger Connect On Demand if user ping pptp server
*/
else {
eval("listen", nvram_safe_get("lan_ifname"));
}
}
stop_wland();
start_wshaper();
start_wland();
cprintf("done\n");
return;
}