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add cluster_mcast_ttl option

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This commit is contained in:
Brendan O'Dea 2005-09-02 23:59:56 +00:00
parent a8823a7dfa
commit 2b05f31dc7
7 changed files with 26 additions and 4 deletions
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11
cluster.c
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@ -1,6 +1,6 @@
// L2TPNS Clustering Stuff
char const *cvs_id_cluster = "$Id: cluster.c,v 1.45 2005-07-31 10:04:09 bodea Exp $";
char const *cvs_id_cluster = "$Id: cluster.c,v 1.46 2005-09-02 23:59:56 bodea Exp $";
#include <stdio.h>
#include <stdlib.h>
@ -127,6 +127,15 @@ int cluster_init()
opt = 0; // Turn off multicast loopback.
setsockopt(cluster_sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &opt, sizeof(opt));
if (config->cluster_mcast_ttl != 1)
{
uint8_t ttl = 0;
if (config->cluster_mcast_ttl > 0)
ttl = config->cluster_mcast_ttl < 256 ? config->cluster_mcast_ttl : 255;
setsockopt(cluster_sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
}
if (setsockopt(cluster_sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
{
LOG(0, 0, 0, "Failed to setsockopt (join mcast group): %s\n", strerror(errno));