From e9a3670706edf37c5a863c93e5ef0c269e484eb9 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sun, 24 Aug 2008 20:36:51 -0400 Subject: Fix bgp ipv4/ipv6 accept handling When bgp calls getaddrinfo, it gets both ipv6 and ipv4 addresses. Unless IPV6_ONLY is set on Linux, only the ipv6 bind will succeed, and the IPV4 connections will come in as mapped connections on the IPV6 socket. --- bgpd/bgp_network.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'bgpd') diff --git a/bgpd/bgp_network.c b/bgpd/bgp_network.c index 5dbd4872..6d16c6ec 100644 --- a/bgpd/bgp_network.c +++ b/bgpd/bgp_network.c @@ -412,6 +412,15 @@ bgp_socket (struct bgp *bgp, unsigned short port, char *address) setsockopt_ipv4_tos (sock, IPTOS_PREC_INTERNETCONTROL); #endif +#ifdef IPV6_V6ONLY + /* Want only IPV6 on ipv6 socket (not mapped addresses) */ + if (ainfo->ai_family == AF_INET6) { + int on = 1; + setsockopt (sock, IPPROTO_IPV6, IPV6_V6ONLY, + (void *) &on, sizeof (on)); + } +#endif + if (bgpd_privs.change (ZPRIVS_RAISE) ) zlog_err ("bgp_socket: could not raise privs"); -- cgit v1.2.1