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2 * IS-IS Rout(e)ing protocol - isis_lsp.h
5 * Copyright (C) 2001,2002 Sampo Saaristo
6 * Tampere University of Technology
7 * Institute of Communications Engineering
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public Licenseas published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
14 * This program is distributed in the hope that it will be useful,but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * You should have received a copy of the GNU General Public License along
20 * with this program; see the file COPYING; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #ifndef _ZEBRA_ISIS_LSP_H
25 #define _ZEBRA_ISIS_LSP_H
27 #include "isisd/isis_pdu.h"
29 /* Structure for isis_lsp, this structure will only support the fixed
30 * System ID (Currently 6) (atleast for now). In order to support more
31 * We will have to split the header into two parts, and for readability
32 * sake it should better be avoided */
34 struct isis_lsp_hdr hdr
;
35 struct stream
*pdu
; /* full pdu lsp */
38 struct isis_lsp
*zero_lsp
;
40 uint32_t SSNflags
[ISIS_MAX_CIRCUITS
];
41 int level
; /* L1 or L2? */
42 int scheduled
; /* scheduled for sending */
44 time_t last_generated
;
46 /* used for 60 second counting when rem_lifetime is zero */
48 struct isis_area
*area
;
49 struct isis_tlvs
*tlvs
;
52 dict_t
*lsp_db_init(void);
53 void lsp_db_destroy(dict_t
*lspdb
);
54 int lsp_tick(struct thread
*thread
);
56 int lsp_generate(struct isis_area
*area
, int level
);
57 #define lsp_regenerate_schedule(area, level, all_pseudo) \
58 _lsp_regenerate_schedule((area), (level), (all_pseudo), true, \
59 __func__, __FILE__, __LINE__)
60 int _lsp_regenerate_schedule(struct isis_area
*area
, int level
,
61 int all_pseudo
, bool postpone
,
62 const char *func
, const char *file
, int line
);
63 int lsp_generate_pseudo(struct isis_circuit
*circuit
, int level
);
64 int lsp_regenerate_schedule_pseudo(struct isis_circuit
*circuit
, int level
);
66 struct isis_lsp
*lsp_new(struct isis_area
*area
, uint8_t *lsp_id
,
67 uint16_t rem_lifetime
, uint32_t seq_num
,
68 uint8_t lsp_bits
, uint16_t checksum
,
69 struct isis_lsp
*lsp0
, int level
);
70 struct isis_lsp
*lsp_new_from_recv(struct isis_lsp_hdr
*hdr
,
71 struct isis_tlvs
*tlvs
,
72 struct stream
*stream
, struct isis_lsp
*lsp0
,
73 struct isis_area
*area
, int level
);
74 void lsp_insert(struct isis_lsp
*lsp
, dict_t
*lspdb
);
75 struct isis_lsp
*lsp_search(uint8_t *id
, dict_t
*lspdb
);
77 void lsp_build_list(uint8_t *start_id
, uint8_t *stop_id
, uint8_t num_lsps
,
78 struct list
*list
, dict_t
*lspdb
);
79 void lsp_build_list_nonzero_ht(uint8_t *start_id
, uint8_t *stop_id
,
80 struct list
*list
, dict_t
*lspdb
);
81 void lsp_search_and_destroy(uint8_t *id
, dict_t
*lspdb
);
82 void lsp_purge_pseudo(uint8_t *id
, struct isis_circuit
*circuit
, int level
);
83 void lsp_purge_non_exist(int level
, struct isis_lsp_hdr
*hdr
,
84 struct isis_area
*area
);
90 #define LSP_PSEUDO_ID(I) ((I)[ISIS_SYS_ID_LEN])
91 #define LSP_FRAGMENT(I) ((I)[ISIS_SYS_ID_LEN + 1])
93 memcpy((I), isis->sysid, ISIS_SYS_ID_LEN); \
94 (I)[ISIS_SYS_ID_LEN] = 0; \
95 (I)[ISIS_SYS_ID_LEN + 1] = 0
96 int lsp_id_cmp(uint8_t *id1
, uint8_t *id2
);
97 int lsp_compare(char *areatag
, struct isis_lsp
*lsp
, uint32_t seqno
,
98 uint16_t checksum
, uint16_t rem_lifetime
);
99 void lsp_update(struct isis_lsp
*lsp
, struct isis_lsp_hdr
*hdr
,
100 struct isis_tlvs
*tlvs
, struct stream
*stream
,
101 struct isis_area
*area
, int level
, bool confusion
);
102 void lsp_inc_seqno(struct isis_lsp
*lsp
, uint32_t seqno
);
103 void lsp_print(struct isis_lsp
*lsp
, struct vty
*vty
, char dynhost
);
104 void lsp_print_detail(struct isis_lsp
*lsp
, struct vty
*vty
, char dynhost
);
105 int lsp_print_all(struct vty
*vty
, dict_t
*lspdb
, char detail
, char dynhost
);
106 /* sets SRMflags for all active circuits of an lsp */
107 void lsp_set_all_srmflags(struct isis_lsp
*lsp
, bool set
);
108 void lsp_flood(struct isis_lsp
*lsp
, struct isis_circuit
*circuit
);
111 #endif /* ISIS_LSP */