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authorRoopa Prabhu <roopa@cumulusnetworks.com>2018-09-22 21:26:20 -0700
committerDavid S. Miller <davem@davemloft.net>2018-09-24 12:21:32 -0700
commitfc6e8073f304010605f834cb2eb8c07c46461c9d (patch)
treed3f4fecf55349f4de7a7c8a9f3faafb394632d20 /include/net/neighbour.h
parentf7aa74e483e81c7a064ebc29e5deeb6b31cde412 (diff)
downloadlinux-fc6e8073f304010605f834cb2eb8c07c46461c9d.tar.bz2
neighbour: send netlink notification if NTF_ROUTER changes
send netlink notification if neigh_update results in NTF_ROUTER change and if NEIGH_UPDATE_F_ISROUTER is on. Also move the NTF_ROUTER change function into a helper. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/neighbour.h')
-rw-r--r--include/net/neighbour.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 6c1eecd56a4d..0874f7fcd859 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -544,4 +544,19 @@ static inline void neigh_update_ext_learned(struct neighbour *neigh, u32 flags,
*notify = 1;
}
}
+
+static inline void neigh_update_is_router(struct neighbour *neigh, u32 flags,
+ int *notify)
+{
+ u8 ndm_flags = 0;
+
+ ndm_flags |= (flags & NEIGH_UPDATE_F_ISROUTER) ? NTF_ROUTER : 0;
+ if ((neigh->flags ^ ndm_flags) & NTF_ROUTER) {
+ if (ndm_flags & NTF_ROUTER)
+ neigh->flags |= NTF_ROUTER;
+ else
+ neigh->flags &= ~NTF_ROUTER;
+ *notify = 1;
+ }
+}
#endif