Add of the ppp_keepalive option.

[l2tpns.git] / l2tpns.c

diff --git a/l2tpns.c b/l2tpns.c
index 114981f..1c50a3e 100644 (file)
--- a/l2tpns.c
+++ b/l2tpns.c
@@ -132,6 +132,7 @@ config_descriptt config_values[] = {
        CONFIG("ppp_restart_time", ppp_restart_time, INT),
        CONFIG("ppp_max_configure", ppp_max_configure, INT),
        CONFIG("ppp_max_failure", ppp_max_failure, INT),
+       CONFIG("ppp_keepalive", ppp_keepalive, BOOL),
        CONFIG("primary_dns", default_dns1, IPv4),
        CONFIG("secondary_dns", default_dns2, IPv4),
        CONFIG("primary_radius", radiusserver[0], IPv4),
@@ -3780,8 +3781,10 @@ static void regular_cleanups(double period)
                }
 
                // No data in ECHO_TIMEOUT seconds, send LCP ECHO
-               if (session[s].ppp.phase >= Establish && (time_now - session[s].last_packet >= config->echo_timeout) &&
-                       (time_now - sess_local[s].last_echo >= ECHO_TIMEOUT))
+               if (session[s].ppp.phase >= Establish &&
+                    ((!config->ppp_keepalive) ||
+                     (time_now - session[s].last_packet >= config->echo_timeout)) &&
+                   (time_now - sess_local[s].last_echo >= ECHO_TIMEOUT))
                {
                        uint8_t b[MAXETHER];
 
@@ -4600,6 +4603,7 @@ static void initdata(int optdebug, char *optconfig)
        // Set default value echo_timeout and idle_echo_timeout
        config->echo_timeout = ECHO_TIMEOUT;
        config->idle_echo_timeout = IDLE_ECHO_TIMEOUT;
+       config->ppp_keepalive = 1;
        // Set default RDNSS lifetime
        config->dns6_lifetime = 1200;