lib, zebra: add new MPLS zapi message with route replace semantics

[mirror_frr.git] / zebra / zebra_mpls.c

diff --git a/zebra/zebra_mpls.c b/zebra/zebra_mpls.c
index bbf4af93eeb49550262ebbaa6d0c0819654cfe67..74eaa582c97d44b84ff6bf0334baa7574961a461 100644 (file)
--- a/zebra/zebra_mpls.c
+++ b/zebra/zebra_mpls.c
@@ -2654,6 +2654,42 @@ int mpls_ftn_update(int add, struct zebra_vrf *zvrf, enum lsp_types_t type,
        return 0;
 }
 
+int mpls_ftn_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type,
+                      struct prefix *prefix, uint8_t route_type,
+                      unsigned short route_instance)
+{
+       struct route_table *table;
+       struct route_node *rn;
+       struct route_entry *re;
+       struct nexthop *nexthop;
+
+       /* Lookup table.  */
+       table = zebra_vrf_table(family2afi(prefix->family), SAFI_UNICAST,
+                               zvrf_id(zvrf));
+       if (!table)
+               return -1;
+
+       /* Lookup existing route */
+       rn = route_node_get(table, prefix);
+       RNODE_FOREACH_RE (rn, re) {
+               if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED))
+                       continue;
+               if (re->type == route_type && re->instance == route_instance)
+                       break;
+       }
+       if (re == NULL)
+               return -1;
+
+       for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next)
+               nexthop_del_labels(nexthop);
+
+       SET_FLAG(re->status, ROUTE_ENTRY_CHANGED);
+       SET_FLAG(re->status, ROUTE_ENTRY_LABELS_CHANGED);
+       rib_queue_add(rn);
+
+       return 0;
+}
+
 /*
  * Install/update a NHLFE for an LSP in the forwarding table. This may be
  * a new LSP entry or a new NHLFE for an existing in-label or an update of
@@ -2786,6 +2822,27 @@ int mpls_lsp_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type,
        return 0;
 }
 
+int mpls_lsp_uninstall_all_vrf(struct zebra_vrf *zvrf, enum lsp_types_t type,
+                              mpls_label_t in_label)
+{
+       struct hash *lsp_table;
+       zebra_ile_t tmp_ile;
+       zebra_lsp_t *lsp;
+
+       /* Lookup table. */
+       lsp_table = zvrf->lsp_table;
+       if (!lsp_table)
+               return -1;
+
+       /* If entry is not present, exit. */
+       tmp_ile.in_label = in_label;
+       lsp = hash_lookup(lsp_table, &tmp_ile);
+       if (!lsp)
+               return 0;
+
+       return mpls_lsp_uninstall_all(lsp_table, lsp, type);
+}
+
 /*
  * Uninstall all NHLFEs for a particular LSP forwarding entry.
  * If no other NHLFEs exist, the entry would be deleted.