diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch b/target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch new file mode 100644 index 000000000..e9c95cf9d --- /dev/null +++ b/target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch @@ -0,0 +1,41 @@ +--- a/net/ipv6/ndisc.c ++++ b/net/ipv6/ndisc.c +@@ -1105,6 +1105,18 @@ errout: + rtnl_set_sk_err(net, RTNLGRP_ND_USEROPT, err); + } + ++static inline int accept_ra(struct inet6_dev *in6_dev) ++{ ++ /* ++ * If forwarding is enabled, RA are not accepted unless the special ++ * hybrid mode (accept_ra=2) is enabled. ++ */ ++ if (in6_dev->cnf.forwarding && in6_dev->cnf.accept_ra < 2) ++ return 0; ++ ++ return in6_dev->cnf.accept_ra; ++} ++ + static void ndisc_router_discovery(struct sk_buff *skb) + { + struct ra_msg *ra_msg = (struct ra_msg *)skb_transport_header(skb); +@@ -1158,8 +1170,7 @@ static void ndisc_router_discovery(struc + return; + } + +- /* skip route and link configuration on routers */ +- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra) ++ if (!accept_ra(in6_dev)) + goto skip_linkparms; + + #ifdef CONFIG_IPV6_NDISC_NODETYPE +@@ -1309,8 +1320,7 @@ skip_linkparms: + NEIGH_UPDATE_F_ISROUTER); + } + +- /* skip route and link configuration on routers */ +- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra) ++ if (!accept_ra(in6_dev)) + goto out; + + #ifdef CONFIG_IPV6_ROUTE_INFO |