netdev - [PATCH iproute2 net-next] ipneigh: exclude NTF_EXT

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Date:   Mon, 16 Jul 2018 15:19:52 -0700
From:   Roopa Prabhu <roopa@...ulusnetworks.com>
To:     dsahern@...il.com
Cc:     netdev@...r.kernel.org
Subject: [PATCH iproute2 net-next] ipneigh: exclude NTF_EXT_LEARNED from default filter

From: Roopa Prabhu <roopa@...ulusnetworks.com>

NUD_NOARP entries are filtered out by default by iproute2.
We dont want NUD_NOARP with NTF_EXT_LEARNED flag filtered out.
This patch extends the default filter check for ip neigh show
to include the NTF_EXT_LEARNED flag.

Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>
---
 ip/ipneigh.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ip/ipneigh.c b/ip/ipneigh.c
index bd6e5c5..a0af705 100644
--- a/ip/ipneigh.c
+++ b/ip/ipneigh.c
@@ -262,6 +262,7 @@ int print_neigh(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
 		return 0;
 	if (!(filter.state&r->ndm_state) &&
 	    !(r->ndm_flags & NTF_PROXY) &&
+	    !(r->ndm_flags & NTF_EXT_LEARNED) &&
 	    (r->ndm_state || !(filter.state&0x100)) &&
 	    (r->ndm_family != AF_DECnet))
 		return 0;
-- 
2.1.4