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Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 004fffb6c221..58c449ad7f6e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2234,6 +2234,27 @@ void rt6_remove_prefsrc(struct inet6_ifaddr *ifp)
fib6_clean_all(net, fib6_remove_prefsrc, &adni);
}
+#define RTF_RA_ROUTER (RTF_ADDRCONF | RTF_DEFAULT | RTF_GATEWAY)
+#define RTF_CACHE_GATEWAY (RTF_GATEWAY | RTF_CACHE)
+
+/* Remove routers and update dst entries when gateway turn into host. */
+static int fib6_clean_tohost(struct rt6_info *rt, void *arg)
+{
+ struct in6_addr *gateway = (struct in6_addr *)arg;
+
+ if ((((rt->rt6i_flags & RTF_RA_ROUTER) == RTF_RA_ROUTER) ||
+ ((rt->rt6i_flags & RTF_CACHE_GATEWAY) == RTF_CACHE_GATEWAY)) &&
+ ipv6_addr_equal(gateway, &rt->rt6i_gateway)) {
+ return -1;
+ }
+ return 0;
+}
+
+void rt6_clean_tohost(struct net *net, struct in6_addr *gateway)
+{
+ fib6_clean_all(net, fib6_clean_tohost, gateway);
+}
+
struct arg_dev_net {
struct net_device *dev;
struct net *net;