From: Donald Sharp <sharpd@cumulusnetworks.com>
Date: Sat, 20 Oct 2018 00:43:47 +0000 (-0400)
Subject: bgpd: Dissallow v6 routes from setting a v4 nexthop
X-Git-Tag: frr-7.1-dev~255^2
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=77f4dfb9b0f58a1f45856c421513be4a459365dc;p=mirror%2Ffrr.git

bgpd: Dissallow v6 routes from setting a v4 nexthop

Do not allow a v6 route to set a v4 nexthop via a routemap.
As that this will crash bgp.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
---

diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c
index 1b2c1306f7..ca0291d0a1 100644
--- a/bgpd/bgp_routemap.c
+++ b/bgpd/bgp_routemap.c
@@ -1406,6 +1406,9 @@ static route_map_result_t route_set_ip_nexthop(void *rule,
 	if (type != RMAP_BGP)
 		return RMAP_OKAY;
 
+	if (prefix->family == AF_INET6)
+		return RMAP_OKAY;
+
 	path = object;
 	peer = path->peer;