zebra: fix vanished blackhole route

Fix vanished blackhole route when kernel routes are updated.

> root@router# echo "100 my_table" | tee -a /etc/iproute2/rt_tables
> root@router# ip l add du0 type dummy
> root@router# ifconfig du0 192.168.0.1/24 up
> root@router# ip route add blackhole default table 100
> root@router# ip route show table 100
> blackhole default
> root@router# vtysh -c 'show ip route table 100'
> [...]
> Table 100:
> K>* 0.0.0.0/0 [0/0] unreachable (blackhole), weight 1, 00:00:05
> root@router# ip l add red type vrf table 100
> root@router# vtysh -c 'show ip route table 100'
> [...]
> Table 100:
> K>* 0.0.0.0/0 [0/0] unreachable (blackhole), weight 1, 00:00:16
> root@router# ip l set du0 master red
> root@router# vtysh -c 'show ip route table 100'
> [...]
> Table 100:
> C>* 192.168.0.0/24 is directly connected, du0, weight 1, 00:00:02
> L>* 192.168.0.1/32 is directly connected, du0, weight 1, 00:00:02
> root@router# ip route show table 100
> blackhole default
> 192.168.0.0/24 dev du0 proto kernel scope link src 192.168.0.1
> local 192.168.0.1 dev du0 proto kernel scope host src 192.168.0.1
> broadcast 192.168.0.255 dev du0 proto kernel scope link src 192.168.0.1

Fixes: d528c02a20 ("zebra: Handle kernel routes appropriately")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>

0 files changed, 0 insertions, 0 deletions