1 files changed, 77 insertions, 0 deletions
diff --git a/isisd/isis_spf.h b/isisd/isis_spf.h
new file mode 100644
index 0000000..7e9754d
--- /dev/null
+++ b/isisd/isis_spf.h
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IS-IS Rout(e)ing protocol - isis_spf.h
+ *                             IS-IS Shortest Path First algorithm
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           Tampere University of Technology
+ *                           Institute of Communications Engineering
+ */
+
+#ifndef _ZEBRA_ISIS_SPF_H
+#define _ZEBRA_ISIS_SPF_H
+
+#include "isisd/isis_lfa.h"
+#include "lib/json.h"
+
+struct isis_spftree;
+
+enum spf_type {
+	SPF_TYPE_FORWARD = 1,
+	SPF_TYPE_REVERSE,
+	SPF_TYPE_RLFA,
+	SPF_TYPE_TI_LFA,
+};
+
+struct isis_spf_adj {
+	uint8_t id[ISIS_SYS_ID_LEN + 1];
+	struct isis_adjacency *adj;
+	uint32_t metric;
+	struct isis_ext_subtlvs *subtlvs;
+	struct isis_lsp *lsp;
+	struct {
+		uint8_t desig_is_id[ISIS_SYS_ID_LEN + 1];
+	} lan;
+	uint8_t flags;
+#define F_ISIS_SPF_ADJ_BROADCAST 0x01
+#define F_ISIS_SPF_ADJ_OLDMETRIC 0x02
+#define F_ISIS_SPF_ADJ_METRIC_INFINITY 0x04
+};
+
+struct isis_spftree *
+isis_spftree_new(struct isis_area *area, struct lspdb_head *lspdb,
+		 const uint8_t *sysid, int level, enum spf_tree_id tree_id,
+		 enum spf_type type, uint8_t flags, uint8_t algorithm);
+struct isis_vertex *isis_spf_prefix_sid_lookup(struct isis_spftree *spftree,
+					       struct isis_prefix_sid *psid);
+void isis_spf_invalidate_routes(struct isis_spftree *tree);
+void isis_spf_verify_routes(struct isis_area *area, struct isis_spftree **trees,
+			    int tree);
+void isis_spf_switchover_routes(struct isis_area *area,
+				struct isis_spftree **trees, int family,
+				union g_addr *nexthop_ip, ifindex_t ifindex,
+				int level);
+void isis_spftree_del(struct isis_spftree *spftree);
+void spftree_area_init(struct isis_area *area);
+void spftree_area_del(struct isis_area *area);
+struct isis_lsp *isis_root_system_lsp(struct lspdb_head *lspdb,
+				      const uint8_t *sysid);
+#define isis_spf_schedule(area, level) \
+	_isis_spf_schedule((area), (level), __func__, \
+			   __FILE__, __LINE__)
+int _isis_spf_schedule(struct isis_area *area, int level,
+		       const char *func, const char *file, int line);
+void isis_print_spftree(struct vty *vty, struct isis_spftree *spftree);
+void isis_print_routes(struct vty *vty, struct isis_spftree *spftree,
+		       json_object **json, bool prefix_sid, bool backup);
+void isis_spf_init(void);
+void isis_spf_print(struct isis_spftree *spftree, struct vty *vty);
+void isis_spf_print_json(struct isis_spftree *spftree,
+			 struct json_object *json);
+void isis_run_spf(struct isis_spftree *spftree);
+struct isis_spftree *isis_run_hopcount_spf(struct isis_area *area,
+					   uint8_t *sysid,
+					   struct isis_spftree *spftree);
+
+void isis_spf_timer_free(void *run);
+#endif /* _ZEBRA_ISIS_SPF_H */