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Add LocalDiscovery option which tries to detect peers on the local network.

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Currently, this is implemented by sending IPv4 broadcast packets to the
LAN during path MTU discovery.
This commit is contained in:
Guus Sliepen 2012-02-22 23:17:43 +01:00
parent 8e717ddb60
commit 5a28aa7b8b
8 changed files with 67 additions and 7 deletions
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1
src/net_socket.c
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@ -211,6 +211,7 @@ int setup_vpn_in_socket(const sockaddr_t *sa) {
option = 1;
setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, (void *)&option, sizeof(option));
setsockopt(nfd, SOL_SOCKET, SO_BROADCAST, (void *)&option, sizeof(option));
if(udp_rcvbuf && setsockopt(nfd, SOL_SOCKET, SO_RCVBUF, (void *)&udp_rcvbuf, sizeof(udp_rcvbuf)))
logger(LOG_WARNING, "Can't set UDP SO_RCVBUF to %i: %s", udp_rcvbuf, strerror(errno));