commit 6d0732c8abad7ace509d033a41814ea03a3a1b16
author Stephen Hemminger <shemminger@vyatta.com> Wed Sep 28 14:23:35 2011 +0400
committer Denis Ovsienko <infrastation@yandex.ru> Mon Oct 17 18:59:19 2011 +0400
tree d20c537d0e16cb5245047d8ecd9990201a4fb3b6
parent a5b228b3792937c93b589938a2545b9311b7938e

IPv6 transport class suppport

IPv6 supports the same concept of differentiated service for routing
protocols as IPv4, but like too many things, the standards committee
decided that having two names for the same thing wasn't good enough and
introduced a third more generic term transport class.

The socket option to set transport class works the same as IPv4, but the
arguments are different.

* lib/sockopt.[ch]
  * setsockopt_ipv6_tclass(): new function
* bgpd/bgp_network.c
  * bgp_connect(): set socket option
  * bgp_listener(): set socket option
* ospf6d/ospf6_network.c
  * ospf6_set_transport_class(): new function
  * ospf6_serv_sock(): set socket option
* ripngd/ripngd.c
  * ripng_make_socket(): set socket option

bgpd/bgp_network.c

diff --git a/bgpd/bgp_network.c b/bgpd/bgp_network.c
index 570cc3b..c8ff87a 100644
--- a/bgpd/bgp_network.c
+++ b/bgpd/bgp_network.c
@@ -330,6 +330,10 @@
 #ifdef IPTOS_PREC_INTERNETCONTROL
   if (sockunion_family (&peer->su) == AF_INET)
     setsockopt_ipv4_tos (peer->fd, IPTOS_PREC_INTERNETCONTROL);
+# ifdef HAVE_IPV6
+  else if (sockunion_family (&peer->su) == AF_INET6)
+    setsockopt_ipv6_tclass (peer->fd, IPTOS_PREC_INTERNETCONTROL);
+# endif
 #endif
 
   if (peer->password)
@@ -389,6 +393,10 @@
 #ifdef IPTOS_PREC_INTERNETCONTROL
   if (sa->sa_family == AF_INET)
     setsockopt_ipv4_tos (sock, IPTOS_PREC_INTERNETCONTROL);
+#  ifdef HAVE_IPV6
+  else if (sa->sa_family == AF_INET6)
+    setsockopt_ipv6_tclass (sock, IPTOS_PREC_INTERNETCONTROL);
+#  endif
 #endif
 
 #ifdef IPV6_V6ONLY