Adding upstream version 9.1.upstream/9.1

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

1 files changed, 172 insertions, 0 deletions

diff --git a/ospf6d/ospf6_asbr.h b/ospf6d/ospf6_asbr.h
new file mode 100644
index 0000000..d63e467
--- /dev/null
+++ b/ospf6d/ospf6_asbr.h
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2001 Yasuhiro Ohara
+ */
+
+#ifndef OSPF6_ASBR_H
+#define OSPF6_ASBR_H
+
+/* for struct ospf6_prefix */
+#include "ospf6_proto.h"
+/* for struct ospf6_lsa */
+#include "ospf6_lsa.h"
+/* for struct ospf6_route */
+#include "ospf6_route.h"
+
+/* Debug option */
+extern unsigned char conf_debug_ospf6_asbr;
+#define OSPF6_DEBUG_ASBR_ON() (conf_debug_ospf6_asbr = 1)
+#define OSPF6_DEBUG_ASBR_OFF() (conf_debug_ospf6_asbr = 0)
+#define IS_OSPF6_DEBUG_ASBR (conf_debug_ospf6_asbr)
+
+struct ospf6_external_info {
+	/* External route type */
+	int type;
+
+	/* Originating Link State ID */
+	uint32_t id;
+
+	struct in6_addr forwarding;
+
+	route_tag_t tag;
+
+	ifindex_t ifindex;
+
+};
+
+/* OSPF6 ASBR Summarisation */
+typedef enum {
+	OSPF6_ROUTE_AGGR_NONE = 0,
+	OSPF6_ROUTE_AGGR_ADD,
+	OSPF6_ROUTE_AGGR_DEL,
+	OSPF6_ROUTE_AGGR_MODIFY
+} ospf6_aggr_action_t;
+
+#define OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE 0x1
+#define OSPF6_EXTERNAL_AGGRT_ORIGINATED 0x2
+
+#define OSPF6_EXTERNAL_RT_COUNT(aggr)    \
+	(((struct ospf6_external_aggr_rt *)aggr)->match_extnl_hash->count)
+
+struct ospf6_external_aggr_rt {
+	/* range address and masklen */
+	struct prefix p;
+
+	/* use bits for OSPF6_EXTERNAL_AGGRT_NO_ADVERTISE and
+	 * OSPF6_EXTERNAL_AGGRT_ORIGINATED
+	 */
+	uint16_t aggrflags;
+
+	/* To store external metric-type */
+	uint8_t mtype;
+
+	/* Route tag for summary address */
+	route_tag_t tag;
+
+	/* To store aggregated metric config */
+	int metric;
+
+	/* To Store the LS ID when LSA is originated */
+	uint32_t id;
+
+	/* Action to be done after delay timer expiry */
+	int action;
+
+	/* OSPFv3 route generated by summary address. */
+	struct ospf6_route *route;
+
+	/* Hash table of matching external routes */
+	struct hash *match_extnl_hash;
+};
+
+/* AS-External-LSA */
+#define OSPF6_AS_EXTERNAL_LSA_MIN_SIZE         4U /* w/o IPv6 prefix */
+struct ospf6_as_external_lsa {
+	uint32_t bits_metric;
+
+	struct ospf6_prefix prefix;
+	/* followed by none or one forwarding address */
+	/* followed by none or one external route tag */
+	/* followed by none or one referenced LS-ID */
+};
+
+#define OSPF6_ASBR_BIT_T  ntohl (0x01000000)
+#define OSPF6_ASBR_BIT_F  ntohl (0x02000000)
+#define OSPF6_ASBR_BIT_E  ntohl (0x04000000)
+
+#define OSPF6_ASBR_METRIC(E) (ntohl ((E)->bits_metric & htonl (0x00ffffff)))
+#define OSPF6_ASBR_METRIC_SET(E, C)                                            \
+	{                                                                      \
+		(E)->bits_metric &= htonl(0xff000000);                         \
+		(E)->bits_metric |= htonl(0x00ffffff) & htonl(C);              \
+	}
+
+extern void ospf6_asbr_lsa_add(struct ospf6_lsa *lsa);
+
+extern void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa,
+				  struct ospf6_route *asbr_entry);
+extern void ospf6_asbr_lsentry_add(struct ospf6_route *asbr_entry,
+				   struct ospf6 *ospf6);
+extern void ospf6_asbr_lsentry_remove(struct ospf6_route *asbr_entry,
+				      struct ospf6 *ospf6);
+
+extern int ospf6_asbr_is_asbr(struct ospf6 *o);
+extern void ospf6_asbr_redistribute_add(int type, ifindex_t ifindex,
+					struct prefix *prefix,
+					unsigned int nexthop_num,
+					const struct in6_addr *nexthop,
+					route_tag_t tag, struct ospf6 *ospf6);
+extern void ospf6_asbr_redistribute_remove(int type, ifindex_t ifindex,
+					   struct prefix *prefix,
+					   struct ospf6 *ospf6);
+
+extern int ospf6_redistribute_config_write(struct vty *vty,
+					   struct ospf6 *ospf6);
+
+extern void ospf6_asbr_init(void);
+extern void ospf6_asbr_redistribute_disable(struct ospf6 *ospf6);
+extern void ospf6_asbr_redistribute_reset(struct ospf6 *ospf6);
+extern void ospf6_asbr_terminate(void);
+extern void ospf6_asbr_send_externals_to_area(struct ospf6_area *);
+extern void ospf6_asbr_remove_externals_from_area(struct ospf6_area *oa);
+
+extern int config_write_ospf6_debug_asbr(struct vty *vty);
+extern int ospf6_distribute_config_write(struct vty *vty, struct ospf6 *ospf6);
+extern void install_element_ospf6_debug_asbr(void);
+extern void ospf6_asbr_update_route_ecmp_path(struct ospf6_route *old,
+					      struct ospf6_route *route,
+					      struct ospf6 *ospf6);
+extern void ospf6_asbr_distribute_list_update(struct ospf6 *ospf6,
+					      struct ospf6_redist *red);
+struct ospf6_redist *ospf6_redist_lookup(struct ospf6 *ospf6, int type,
+					 unsigned short instance);
+extern void ospf6_asbr_routemap_update(const char *mapname);
+extern struct ospf6_lsa *
+ospf6_as_external_lsa_originate(struct ospf6_route *route,
+				struct ospf6 *ospf6);
+extern void ospf6_asbr_status_update(struct ospf6 *ospf6, int status);
+
+int ospf6_asbr_external_rt_advertise(struct ospf6 *ospf6,
+				     struct prefix *p);
+int ospf6_external_aggr_delay_timer_set(struct ospf6 *ospf6, uint16_t interval);
+int ospf6_asbr_external_rt_no_advertise(struct ospf6 *ospf6,
+						struct prefix *p);
+
+struct ospf6_external_aggr_rt *
+ospf6_external_aggr_config_lookup(struct ospf6 *ospf6, struct prefix *p);
+
+int ospf6_external_aggr_config_set(struct ospf6 *ospf6, struct prefix *p,
+				   route_tag_t tag, int metric, int mtype);
+
+int ospf6_external_aggr_config_unset(struct ospf6 *ospf6,
+					struct prefix *p);
+void ospf6_handle_external_lsa_origination(struct ospf6 *ospf6,
+					       struct ospf6_route *rt,
+					       struct prefix *p);
+void ospf6_external_aggregator_free(struct ospf6_external_aggr_rt *aggr);
+void ospf6_unset_all_aggr_flag(struct ospf6 *ospf6);
+void ospf6_fill_aggr_route_details(struct ospf6 *ospf6,
+				   struct ospf6_external_aggr_rt *aggr);
+void ospf6_asbr_summary_config_delete(struct ospf6 *ospf6,
+				      struct route_node *rn);
+#endif /* OSPF6_ASBR_H */