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eb5d44eb | 1 | /* |
d62a17ae | 2 | * IS-IS Rout(e)ing protocol - isis_lsp.h |
eb5d44eb | 3 | * LSP processing |
4 | * | |
5 | * Copyright (C) 2001,2002 Sampo Saaristo | |
d62a17ae | 6 | * Tampere University of Technology |
eb5d44eb | 7 | * Institute of Communications Engineering |
8 | * | |
d62a17ae | 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) | |
eb5d44eb | 12 | * any later version. |
13 | * | |
d62a17ae | 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 | |
eb5d44eb | 17 | * more details. |
896014f4 DL |
18 | * |
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 | |
eb5d44eb | 22 | */ |
23 | ||
24 | #ifndef _ZEBRA_ISIS_LSP_H | |
25 | #define _ZEBRA_ISIS_LSP_H | |
26 | ||
af8ac8f9 CF |
27 | #include "isisd/isis_pdu.h" |
28 | ||
eb5d44eb | 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 */ | |
d62a17ae | 33 | struct isis_lsp { |
af8ac8f9 CF |
34 | struct isis_lsp_hdr hdr; |
35 | struct stream *pdu; /* full pdu lsp */ | |
d62a17ae | 36 | union { |
37 | struct list *frags; | |
38 | struct isis_lsp *zero_lsp; | |
39 | } lspu; | |
d7c0a89a | 40 | uint32_t SSNflags[ISIS_MAX_CIRCUITS]; |
d62a17ae | 41 | int level; /* L1 or L2? */ |
42 | int scheduled; /* scheduled for sending */ | |
43 | time_t installed; | |
44 | time_t last_generated; | |
45 | int own_lsp; | |
46 | /* used for 60 second counting when rem_lifetime is zero */ | |
47 | int age_out; | |
48 | struct isis_area *area; | |
af8ac8f9 | 49 | struct isis_tlvs *tlvs; |
1eb7c3a1 | 50 | |
a6b60da9 | 51 | time_t flooding_time; |
1eb7c3a1 CF |
52 | struct list *flooding_neighbors[TX_LSP_CIRCUIT_SCOPED + 1]; |
53 | char *flooding_interface; | |
a6b60da9 | 54 | bool flooding_circuit_scoped; |
eb5d44eb | 55 | }; |
56 | ||
d62a17ae | 57 | dict_t *lsp_db_init(void); |
58 | void lsp_db_destroy(dict_t *lspdb); | |
59 | int lsp_tick(struct thread *thread); | |
eb5d44eb | 60 | |
d62a17ae | 61 | int lsp_generate(struct isis_area *area, int level); |
691f3e76 | 62 | #define lsp_regenerate_schedule(area, level, all_pseudo) \ |
f93025e1 | 63 | _lsp_regenerate_schedule((area), (level), (all_pseudo), true, \ |
691f3e76 CF |
64 | __func__, __FILE__, __LINE__) |
65 | int _lsp_regenerate_schedule(struct isis_area *area, int level, | |
f93025e1 CF |
66 | int all_pseudo, bool postpone, |
67 | const char *func, const char *file, int line); | |
d62a17ae | 68 | int lsp_generate_pseudo(struct isis_circuit *circuit, int level); |
69 | int lsp_regenerate_schedule_pseudo(struct isis_circuit *circuit, int level); | |
eb5d44eb | 70 | |
af8ac8f9 CF |
71 | struct isis_lsp *lsp_new(struct isis_area *area, uint8_t *lsp_id, |
72 | uint16_t rem_lifetime, uint32_t seq_num, | |
8f5dbe18 CF |
73 | uint8_t lsp_bits, uint16_t checksum, |
74 | struct isis_lsp *lsp0, int level); | |
af8ac8f9 CF |
75 | struct isis_lsp *lsp_new_from_recv(struct isis_lsp_hdr *hdr, |
76 | struct isis_tlvs *tlvs, | |
77 | struct stream *stream, struct isis_lsp *lsp0, | |
78 | struct isis_area *area, int level); | |
d62a17ae | 79 | void lsp_insert(struct isis_lsp *lsp, dict_t *lspdb); |
d7c0a89a | 80 | struct isis_lsp *lsp_search(uint8_t *id, dict_t *lspdb); |
eb5d44eb | 81 | |
d7c0a89a | 82 | void lsp_build_list(uint8_t *start_id, uint8_t *stop_id, uint8_t num_lsps, |
d62a17ae | 83 | struct list *list, dict_t *lspdb); |
d7c0a89a | 84 | void lsp_build_list_nonzero_ht(uint8_t *start_id, uint8_t *stop_id, |
d62a17ae | 85 | struct list *list, dict_t *lspdb); |
d7c0a89a QY |
86 | void lsp_search_and_destroy(uint8_t *id, dict_t *lspdb); |
87 | void lsp_purge_pseudo(uint8_t *id, struct isis_circuit *circuit, int level); | |
af8ac8f9 | 88 | void lsp_purge_non_exist(int level, struct isis_lsp_hdr *hdr, |
d62a17ae | 89 | struct isis_area *area); |
eb5d44eb | 90 | |
91 | #define LSP_EQUAL 1 | |
92 | #define LSP_NEWER 2 | |
93 | #define LSP_OLDER 3 | |
94 | ||
c83dcd3f | 95 | #define LSP_PSEUDO_ID(I) ((I)[ISIS_SYS_ID_LEN]) |
96 | #define LSP_FRAGMENT(I) ((I)[ISIS_SYS_ID_LEN + 1]) | |
d62a17ae | 97 | #define OWNLSPID(I) \ |
98 | memcpy((I), isis->sysid, ISIS_SYS_ID_LEN); \ | |
99 | (I)[ISIS_SYS_ID_LEN] = 0; \ | |
100 | (I)[ISIS_SYS_ID_LEN + 1] = 0 | |
d7c0a89a | 101 | int lsp_id_cmp(uint8_t *id1, uint8_t *id2); |
af8ac8f9 CF |
102 | int lsp_compare(char *areatag, struct isis_lsp *lsp, uint32_t seqno, |
103 | uint16_t checksum, uint16_t rem_lifetime); | |
104 | void lsp_update(struct isis_lsp *lsp, struct isis_lsp_hdr *hdr, | |
105 | struct isis_tlvs *tlvs, struct stream *stream, | |
164066e4 | 106 | struct isis_area *area, int level, bool confusion); |
af8ac8f9 | 107 | void lsp_inc_seqno(struct isis_lsp *lsp, uint32_t seqno); |
0d6fb551 | 108 | void lspid_print(uint8_t *lsp_id, char *dest, char dynhost, char frag); |
d62a17ae | 109 | void lsp_print(struct isis_lsp *lsp, struct vty *vty, char dynhost); |
110 | void lsp_print_detail(struct isis_lsp *lsp, struct vty *vty, char dynhost); | |
111 | int lsp_print_all(struct vty *vty, dict_t *lspdb, char detail, char dynhost); | |
3f045a08 | 112 | /* sets SRMflags for all active circuits of an lsp */ |
9b39405f | 113 | void lsp_set_all_srmflags(struct isis_lsp *lsp, bool set); |
ddb33326 CF |
114 | |
115 | #define lsp_flood(lsp, circuit) \ | |
116 | _lsp_flood((lsp), (circuit), __func__, __FILE__, __LINE__) | |
117 | void _lsp_flood(struct isis_lsp *lsp, struct isis_circuit *circuit, | |
118 | const char *func, const char *file, int line); | |
a5b5e946 | 119 | void lsp_init(void); |
3f045a08 | 120 | |
eb5d44eb | 121 | #endif /* ISIS_LSP */ |