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Fix bgp ipv4/ipv6 accept handling

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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.
This commit is contained in:
Stephen Hemminger 2008-08-24 20:36:51 -04:00 committed by Paul Jakma
parent 21b86436a8
commit e9a3670706
1 changed files with 9 additions and 0 deletions
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9
bgpd/bgp_network.c
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@ -412,6 +412,15 @@ bgp_socket (struct bgp *bgp, unsigned short port, char *address)
setsockopt_ipv4_tos (sock, IPTOS_PREC_INTERNETCONTROL); setsockopt_ipv4_tos (sock, IPTOS_PREC_INTERNETCONTROL);
#endif #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) ) if (bgpd_privs.change (ZPRIVS_RAISE) )
zlog_err ("bgp_socket: could not raise privs"); zlog_err ("bgp_socket: could not raise privs");