From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Mon, 16 Jul 2018 22:19:52 +0000 (-0700)
Subject: ipneigh: exclude NTF_EXT_LEARNED from default filter
X-Git-Tag: v4.19.0~99
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c6a6d84ee1bc02d8a124cadd9727445aba23d3e;p=thirdparty%2Fiproute2.git

ipneigh: exclude NTF_EXT_LEARNED from default filter

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@cumulusnetworks.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
---

diff --git a/ip/ipneigh.c b/ip/ipneigh.c
index bd6e5c5e1..a0af705b6 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;