lib: remove vrf-interface config when removing the VRF

If we have the following configuration:
```
vrf red
 smth
 exit-vrf
!
interface red vrf red
 smth
```
And we delete the VRF using "no vrf red" command, we end up with:
```
interface red
 smth
```
Interface config is preserved but moved to the default VRF.

This is not an expected behavior. We should remove the interface config
when the VRF is deleted.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
(cherry picked from commit f5eef2d5a8a471fe6e4ec4f6acfa3dbf190eda5d)

1 files changed, 4 insertions, 0 deletions

diff --git a/pbrd/pbr_vty.c b/pbrd/pbr_vty.c
index 216834fe0c..3d56fc3daa 100644
--- a/pbrd/pbr_vty.c
+++ b/pbrd/pbr_vty.c
@@ -1143,10 +1143,14 @@ static const struct cmd_variable_handler pbr_map_name[] = {
 	}
 };
 
+extern struct zebra_privs_t pbr_privs;
+
 void pbr_vty_init(void)
 {
 	cmd_variable_handler_register(pbr_map_name);
 
+	vrf_cmd_init(NULL, &pbr_privs);
+
 	install_node(&interface_node);
 	if_cmd_init();