From 4041199db40aefa40a87c07df6f701ab34d7f338 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Mon, 9 Sep 2019 15:23:42 +0800
Subject: [PATCH] ipv6: Default fib6_type to RTN_UNICAST when not set
[ Upstream commit c7036d97acd2527cef145b5ef9ad1a37ed21bbe6 ]
A user reported that routes are getting installed with type 0 (RTN_UNSPEC)
where before the routes were RTN_UNICAST. One example is from accel-ppp
which apparently still uses the ioctl interface and does not set
rtmsg_type. Another is the netlink interface where ipv6 does not require
rtm_type to be set (v4 does). Prior to the commit in the Fixes tag the
ipv6 stack converted type 0 to RTN_UNICAST, so restore that behavior.
Fixes: e8478e80e5a7 ("net/ipv6: Save route type in rt6_info")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
net/ipv6/route.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 039435f73d0f..08042a97edf6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3109,7 +3109,7 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
rt->fib6_metric = cfg->fc_metric;
rt->fib6_nh.nh_weight = 1;
- rt->fib6_type = cfg->fc_type;
+ rt->fib6_type = cfg->fc_type ? : RTN_UNICAST;
/* We cannot add true routes via loopback here,
they would result in kernel looping; promote them to reject routes
--
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