bgpd: fix special vrf leak label valid

Do not consider BGP_PREVENT_VRF_2_VRF_LEAK special label as a valid label. Signed-off-by: Louis Scalbert <[email protected]>
FRRouting · Feb 1, 2024 · 83e53c0 · 83e53c0
1 parent 769f25b
commit 83e53c0
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/bgpd/bgp_label.h b/bgpd/bgp_label.h
@@ -62,6 +62,10 @@ static inline int bgp_is_withdraw_label(mpls_label_t *label)
 static inline int bgp_is_valid_label(const mpls_label_t *label)
 {
 	uint8_t *t = (uint8_t *)label;
+
+	if (*label == BGP_PREVENT_VRF_2_VRF_LEAK)
+		return 0;
+
 	if (!t)
 		return 0;
 	return (t[2] & 0x02);