void start_l2tp(int status)
{
int ret;
FILE *fp;
char *l2tp_argv[] = { "xl2tpd",
NULL
};
char username[80], passwd[80];
// stop_dhcpc();
#ifdef HAVE_PPPOE
stop_pppoe();
#endif
#ifdef HAVE_PPTP
stop_pptp();
#endif
stop_l2tp();
snprintf(username, sizeof(username), "%s",
nvram_safe_get("ppp_username"));
snprintf(passwd, sizeof(passwd), "%s", nvram_safe_get("ppp_passwd"));
if (status != REDIAL) {
insmod("ipv6");
insmod("l2tp_core");
insmod("l2tp_netlink");
insmod("l2tp_ppp");
mkdir("/tmp/ppp", 0777);
mkdir("/var/run/xl2tpd", 0777);
mkdir("/tmp/xl2tpd", 0777);
symlink("/sbin/rc", "/tmp/ppp/ip-up");
symlink("/sbin/rc", "/tmp/ppp/ip-down");
symlink("/dev/null", "/tmp/ppp/connect-errors");
/*
* Generate L2TP configuration file
*/
if (!(fp = fopen("/tmp/xl2tpd/xl2tpd.conf", "w"))) {
perror("/tmp/xl2tpd/xl2tpd.conf");
return;
}
/*[global]
port = 1701
;auth file = /etc/xl2tpd/xl2tp-secrets
[lac fbnl2tpserver]
lns = 10.64.1.237
require chap = yes
refuse pap = yes
require authentication = yes
; Name should be the same as the username in the PPP authentication!
name = dani
ppp debug = yes
pppoptfile = /etc/xl2tpd/options.l2tp
length bit = yes
*/
fprintf(fp, "[global]\n"); // Global section
fprintf(fp, "port = 1701\n"); // Bind address
fprintf(fp, "[lac %s]\n", nvram_safe_get("l2tp_server_name"));
fprintf(fp, "lns = %s\n", nvram_safe_get("l2tp_server_name"));
fprintf(fp, "require chap = %s\n",
nvram_default_get("l2tp_req_chap", "yes"));
fprintf(fp, "refuse pap = %s\n",
nvram_default_get("l2tp_ref_pap", "yes"));
fprintf(fp, "redial = yes\n");
fprintf(fp, "redial timeout = 15\n");
fprintf(fp, "require authentication = %s\n",
nvram_default_get("l2tp_req_auth", "yes"));
fprintf(fp, "name = %s\n", username);
fprintf(fp, "pppoptfile = /tmp/ppp/options\n");
fprintf(fp, "length bit = yes\n");
fclose(fp);
/*
* Generate options file
*/
if (!(fp = fopen("/tmp/ppp/options", "w"))) {
perror("/tmp/ppp/options");
return;
}
if (nvram_match("mtu_enable", "1")) {
if (atoi(nvram_safe_get("wan_mtu")) > 0) {
fprintf(fp, "mtu %s\n",
nvram_safe_get("wan_mtu"));
fprintf(fp, "mru %s\n",
nvram_safe_get("wan_mtu"));
}
}
fprintf(fp, "defaultroute\n"); // Add a default route to the
// system routing tables,
// using the peer as the
// gateway
fprintf(fp, "usepeerdns\n"); // Ask the peer for up to 2 DNS
// server addresses
// fprintf(fp, "pty 'pptp %s
// --nolaunchpppd'\n",nvram_safe_get("pptp_server_ip"));
fprintf(fp, "user '%s'\n", username);
// fprintf(fp, "persist\n"); // Do not exit after a connection is
// terminated.
if (nvram_match("ppp_demand", "1")) { // demand mode
fprintf(fp, "idle %d\n",
nvram_match("ppp_demand",
"1") ?
atoi(nvram_safe_get("ppp_idletime")) * 60 : 0);
// fprintf(fp, "demand\n"); // Dial on demand
// fprintf(fp, "persist\n"); // Do not exit after a connection is
// terminated.
// fprintf(fp, "%s:%s\n",PPP_PSEUDO_IP,PPP_PSEUDO_GW); // <local
// IP>:<remote IP>
fprintf(fp, "ipcp-accept-remote\n");
fprintf(fp, "ipcp-accept-local\n");
fprintf(fp, "connect true\n");
fprintf(fp, "noipdefault\n"); // Disables the default
// behaviour when no local IP
// address is specified
fprintf(fp, "ktune\n"); // Set /proc/sys/net/ipv4/ip_dynaddr
// to 1 in demand mode if the local
// address changes
} else { // keepalive mode
start_redial();
}
fprintf(fp, "default-asyncmap\n"); // Disable asyncmap
fprintf(fp, "crtscts\n"); // Disable protocol field compression
// negotiation
fprintf(fp, "nopcomp\n"); // Disable protocol field compression
fprintf(fp, "refuse-eap\n"); // Disable protocol field compression
fprintf(fp, "noaccomp\n"); // Disable Address/Control
// compression
fprintf(fp, "noccp\n"); // Disable CCP (Compression Control
// Protocol)
fprintf(fp, "novj\n"); // Disable Van Jacobson style TCP/IP
// header compression
fprintf(fp, "nobsdcomp\n"); // Disables BSD-Compress compression
fprintf(fp, "nodeflate\n"); // Disables Deflate compression
fprintf(fp, "lcp-echo-interval 0\n"); // Don't send an LCP
// echo-request frame to the
// peer
fprintf(fp, "lock\n");
fprintf(fp, "noauth\n");
// fprintf(fp, "debug\n");
fclose(fp);
/*
* 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");
}
/*
* Bring up WAN interface
*/
// ifconfig(nvram_safe_get("wan_ifname"), IFUP,
// nvram_safe_get("wan_ipaddr"), nvram_safe_get("wan_netmask"));
ret = _evalpid(l2tp_argv, NULL, 0, NULL);
sleep(1);
if (nvram_match("ppp_demand", "1")) {
/*
* Trigger Connect On Demand if user press Connect button in Status
* page
*/
if (nvram_match("action_service", "start_l2tp")) {
start_force_to_dial();
nvram_unset("action_service");
}
/*
* Trigger Connect On Demand if user ping pptp server
*/
else
eval("listen", nvram_safe_get("lan_ifname"));
} else {
sysprintf("echo \"c %s\" > /var/run/xl2tpd/l2tp-control",
nvram_safe_get("l2tp_server_name"));
}
cprintf("done\n");
return;
}
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;
}