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-rw-r--r--isisd/isis_lsp.h165
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diff --git a/isisd/isis_lsp.h b/isisd/isis_lsp.h
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+/*
+ * IS-IS Rout(e)ing protocol - isis_lsp.h
+ * LSP processing
+ *
+ * Copyright (C) 2001,2002 Sampo Saaristo
+ * Tampere University of Technology
+ * Institute of Communications Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public Licenseas published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ZEBRA_ISIS_LSP_H
+#define _ZEBRA_ISIS_LSP_H
+
+#include "lib/typesafe.h"
+#include "isisd/isis_pdu.h"
+
+PREDECL_RBTREE_UNIQ(lspdb);
+
+struct isis;
+/* Structure for isis_lsp, this structure will only support the fixed
+ * System ID (Currently 6) (atleast for now). In order to support more
+ * We will have to split the header into two parts, and for readability
+ * sake it should better be avoided */
+struct isis_lsp {
+ struct lspdb_item dbe;
+
+ struct isis_lsp_hdr hdr;
+ struct stream *pdu; /* full pdu lsp */
+ union {
+ struct list *frags;
+ struct isis_lsp *zero_lsp;
+ } lspu;
+ uint32_t SSNflags[ISIS_MAX_CIRCUITS];
+ int level; /* L1 or L2? */
+ int scheduled; /* scheduled for sending */
+ time_t installed;
+ time_t last_generated;
+ int own_lsp;
+ /* used for 60 second counting when rem_lifetime is zero */
+ int age_out;
+ struct isis_area *area;
+ struct isis_tlvs *tlvs;
+
+ time_t flooding_time;
+ struct list *flooding_neighbors[TX_LSP_CIRCUIT_SCOPED + 1];
+ char *flooding_interface;
+ bool flooding_circuit_scoped;
+};
+
+extern int lspdb_compare(const struct isis_lsp *a, const struct isis_lsp *b);
+DECLARE_RBTREE_UNIQ(lspdb, struct isis_lsp, dbe, lspdb_compare);
+
+void lsp_db_init(struct lspdb_head *head);
+void lsp_db_fini(struct lspdb_head *head);
+void lsp_tick(struct thread *thread);
+
+int lsp_generate(struct isis_area *area, int level);
+#define lsp_regenerate_schedule(area, level, all_pseudo) \
+ _lsp_regenerate_schedule((area), (level), (all_pseudo), true, \
+ __func__, __FILE__, __LINE__)
+int _lsp_regenerate_schedule(struct isis_area *area, int level,
+ int all_pseudo, bool postpone,
+ const char *func, const char *file, int line);
+int lsp_generate_pseudo(struct isis_circuit *circuit, int level);
+int lsp_regenerate_schedule_pseudo(struct isis_circuit *circuit, int level);
+
+bool isis_level2_adj_up(struct isis_area *area);
+
+struct isis_lsp *lsp_new(struct isis_area *area, uint8_t *lsp_id,
+ uint16_t rem_lifetime, uint32_t seq_num,
+ uint8_t lsp_bits, uint16_t checksum,
+ struct isis_lsp *lsp0, int level);
+struct isis_lsp *lsp_new_from_recv(struct isis_lsp_hdr *hdr,
+ struct isis_tlvs *tlvs,
+ struct stream *stream, struct isis_lsp *lsp0,
+ struct isis_area *area, int level);
+void lsp_insert(struct lspdb_head *head, struct isis_lsp *lsp);
+struct isis_lsp *lsp_search(struct lspdb_head *head, const uint8_t *id);
+
+void lsp_build_list(struct lspdb_head *head, const uint8_t *start_id,
+ const uint8_t *stop_id, uint8_t num_lsps,
+ struct list *list);
+void lsp_build_list_nonzero_ht(struct lspdb_head *head,
+ const uint8_t *start_id,
+ const uint8_t *stop_id, struct list *list);
+void lsp_search_and_destroy(struct lspdb_head *head, const uint8_t *id);
+void lsp_purge_pseudo(uint8_t *id, struct isis_circuit *circuit, int level);
+void lsp_purge_non_exist(int level, struct isis_lsp_hdr *hdr,
+ struct isis_area *area);
+
+#define LSP_EQUAL 1
+#define LSP_NEWER 2
+#define LSP_OLDER 3
+
+#define LSP_PSEUDO_ID(I) ((I)[ISIS_SYS_ID_LEN])
+#define LSP_FRAGMENT(I) ((I)[ISIS_SYS_ID_LEN + 1])
+#define OWNLSPID(I) \
+ memcpy((I), isis->sysid, ISIS_SYS_ID_LEN); \
+ (I)[ISIS_SYS_ID_LEN] = 0; \
+ (I)[ISIS_SYS_ID_LEN + 1] = 0
+int lsp_id_cmp(uint8_t *id1, uint8_t *id2);
+int lsp_compare(char *areatag, struct isis_lsp *lsp, uint32_t seqno,
+ uint16_t checksum, uint16_t rem_lifetime);
+void lsp_update(struct isis_lsp *lsp, struct isis_lsp_hdr *hdr,
+ struct isis_tlvs *tlvs, struct stream *stream,
+ struct isis_area *area, int level, bool confusion);
+void lsp_inc_seqno(struct isis_lsp *lsp, uint32_t seqno);
+void lspid_print(uint8_t *lsp_id, char *dest, size_t dest_len, char dynhost,
+ char frag, struct isis *isis);
+void lsp_print_common(struct isis_lsp *lsp, struct vty *vty,
+ struct json_object *json, char dynhost,
+ struct isis *isis);
+void lsp_print_vty(struct isis_lsp *lsp, struct vty *vty, char dynhost,
+ struct isis *isis);
+void lsp_print_json(struct isis_lsp *lsp, struct json_object *json,
+ char dynhost, struct isis *isis);
+void lsp_print_detail(struct isis_lsp *lsp, struct vty *vty,
+ struct json_object *json, char dynhost,
+ struct isis *isis);
+int lsp_print_all(struct vty *vty, struct json_object *json,
+ struct lspdb_head *head, char detail, char dynhost,
+ struct isis *isis);
+/* sets SRMflags for all active circuits of an lsp */
+void lsp_set_all_srmflags(struct isis_lsp *lsp, bool set);
+
+#define LSP_ITER_CONTINUE 0
+#define LSP_ITER_STOP -1
+
+/* Callback used by isis_lsp_iterate_ip_reach() function. */
+struct isis_subtlvs;
+typedef int (*lsp_ip_reach_iter_cb)(const struct prefix *prefix,
+ uint32_t metric, bool external,
+ struct isis_subtlvs *subtlvs, void *arg);
+
+/* Callback used by isis_lsp_iterate_is_reach() function. */
+typedef int (*lsp_is_reach_iter_cb)(const uint8_t *id, uint32_t metric,
+ bool oldmetric,
+ struct isis_ext_subtlvs *subtlvs,
+ void *arg);
+
+int isis_lsp_iterate_ip_reach(struct isis_lsp *lsp, int family, uint16_t mtid,
+ lsp_ip_reach_iter_cb cb, void *arg);
+int isis_lsp_iterate_is_reach(struct isis_lsp *lsp, uint16_t mtid,
+ lsp_is_reach_iter_cb cb, void *arg);
+
+#define lsp_flood(lsp, circuit) \
+ _lsp_flood((lsp), (circuit), __func__, __FILE__, __LINE__)
+void _lsp_flood(struct isis_lsp *lsp, struct isis_circuit *circuit,
+ const char *func, const char *file, int line);
+void lsp_init(void);
+
+#endif /* ISIS_LSP */