Merge pull request #6732 from opensourcerouting/printfrr-prep

[mirror_frr.git] / pimd / pim_register.c

diff --git a/pimd/pim_register.c b/pimd/pim_register.c
index cb6aae7fae688fe4242e26ce75c5b523afbbc509..19e15f3edec041edfd955d49da714fbe01f345a1 100644 (file)
--- a/pimd/pim_register.c
+++ b/pimd/pim_register.c
@@ -520,3 +520,32 @@ int pim_register_recv(struct interface *ifp, struct in_addr dest_addr,
 
        return 0;
 }
+
+/*
+ * This routine scan all upstream and update register state and remove pimreg
+ * when couldreg becomes false.
+ */
+void pim_reg_del_on_couldreg_fail(struct interface *ifp)
+{
+       struct pim_interface *pim_ifp = ifp->info;
+       struct pim_instance *pim;
+       struct pim_upstream *up;
+
+       if (!pim_ifp)
+               return;
+
+       pim = pim_ifp->pim;
+
+       frr_each (rb_pim_upstream, &pim->upstream_head, up) {
+               if (ifp != up->rpf.source_nexthop.interface)
+                       continue;
+
+               if (!pim_upstream_could_register(up)
+                   && (up->reg_state != PIM_REG_NOINFO)) {
+                       pim_channel_del_oif(up->channel_oil, pim->regiface,
+                                           PIM_OIF_FLAG_PROTO_PIM, __func__);
+                       THREAD_OFF(up->t_rs_timer);
+                       up->reg_state = PIM_REG_NOINFO;
+               }
+       }
+}