[NET]: Core net changes to generate netevents

Generate netevents for:
- neighbour changes
- routing redirects
- pmtu changes

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 87c39c978cd0..4b163711f3a8 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -53,6 +53,7 @@
 #include <linux/rtnetlink.h>
 #include <net/dst.h>
 #include <net/xfrm.h>
+#include <net/netevent.h>
 
 #include <asm/uaccess.h>
 
@@ -742,6 +743,7 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
                         dst->metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
                 }
                 dst->metrics[RTAX_MTU-1] = mtu;
+                call_netevent_notifiers(NETEVENT_PMTU_UPDATE, dst);
         }
 }
 
@@ -1155,6 +1157,7 @@ void rt6_redirect(struct in6_addr *dest, struct in6_addr *saddr,
         struct rt6_info *rt, *nrt = NULL;
         int strict;
         struct fib6_node *fn;
+        struct netevent_redirect netevent;
 
         /*
          * Get the "current" route for this destination and
@@ -1252,6 +1255,10 @@ restart:
         if (ip6_ins_rt(nrt, NULL, NULL, NULL))
                 goto out;
 
+        netevent.old = &rt->u.dst;
+        netevent.new = &nrt->u.dst;
+        call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
+
         if (rt->rt6i_flags&RTF_CACHE) {
                 ip6_del_rt(rt, NULL, NULL, NULL);
                 return;