Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/isisd/isis_route.h b/isisd/isis_route.h
new file mode 100644
index 0000000..4d49a5a
--- /dev/null
+++ b/isisd/isis_route.h
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IS-IS Rout(e)ing protocol               - isis_route.h
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           Tampere University of Technology
+ *                           Institute of Communications Engineering
+ *
+ *                                         based on ../ospf6d/ospf6_route.[ch]
+ *                                         by Yasuhiro Ohara
+ */
+#ifndef _ZEBRA_ISIS_ROUTE_H
+#define _ZEBRA_ISIS_ROUTE_H
+
+#include "lib/nexthop.h"
+
+struct isis_nexthop {
+	ifindex_t ifindex;
+	int family;
+	union g_addr ip;
+	uint8_t sysid[ISIS_SYS_ID_LEN];
+	struct isis_sr_psid_info sr;
+	struct mpls_label_stack *label_stack;
+};
+
+struct isis_route_info {
+#define ISIS_ROUTE_FLAG_ACTIVE       0x01  /* active route for the prefix */
+#define ISIS_ROUTE_FLAG_ZEBRA_SYNCED 0x02  /* set when route synced to zebra */
+#define ISIS_ROUTE_FLAG_ZEBRA_RESYNC 0x04  /* set when route needs to sync */
+	uint8_t flag;
+	uint32_t cost;
+	uint32_t depth;
+	struct isis_sr_psid_info sr_algo[SR_ALGORITHM_COUNT];
+	struct isis_sr_psid_info sr_algo_previous[SR_ALGORITHM_COUNT];
+	struct list *nexthops;
+	struct isis_route_info *backup;
+};
+
+struct isis_route_table_info {
+	uint8_t algorithm;
+};
+
+DECLARE_HOOK(isis_route_update_hook,
+	     (struct isis_area * area, struct prefix *prefix,
+	      struct isis_route_info *route_info),
+	     (area, prefix, route_info));
+
+void isis_nexthop_delete(struct isis_nexthop *nexthop);
+void adjinfo2nexthop(int family, struct list *nexthops,
+		     struct isis_adjacency *adj, struct isis_sr_psid_info *sr,
+		     struct mpls_label_stack *label_stack);
+struct isis_route_info *
+isis_route_create(struct prefix *prefix, struct prefix_ipv6 *src_p,
+		  uint32_t cost, uint32_t depth, struct isis_sr_psid_info *sr,
+		  struct list *adjacencies, bool allow_ecmp,
+		  struct isis_area *area, struct route_table *table);
+void isis_route_delete(struct isis_area *area, struct route_node *rode,
+		       struct route_table *table);
+
+/* Walk the given table and install new routes to zebra and remove old ones.
+ * route status is tracked using ISIS_ROUTE_FLAG_ACTIVE */
+void isis_route_verify_table(struct isis_area *area, struct route_table *table,
+			     struct route_table *table_backup, int tree);
+
+/* Same as isis_route_verify_table, but merge L1 and L2 routes before */
+void isis_route_verify_merge(struct isis_area *area,
+			     struct route_table *level1_table,
+			     struct route_table *level1_table_backup,
+			     struct route_table *level2_table,
+			     struct route_table *level2_table_backup, int tree);
+
+/* Unset ISIS_ROUTE_FLAG_ACTIVE on all routes. Used before running spf. */
+void isis_route_invalidate_table(struct isis_area *area,
+				 struct route_table *table);
+
+/* Cleanup route node when freeing routing table. */
+void isis_route_node_cleanup(struct route_table *table,
+			     struct route_node *node);
+
+
+void isis_route_switchover_nexthop(struct isis_area *area,
+				   struct route_table *table, int family,
+				   union g_addr *nexthop_addr,
+				   ifindex_t ifindex);
+
+struct isis_route_table_info *isis_route_table_info_alloc(uint8_t algorithm);
+void isis_route_table_info_free(void *info);
+uint8_t isis_route_table_algorithm(const struct route_table *table);
+
+#endif /* _ZEBRA_ISIS_ROUTE_H */