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eb5d44eb | 1 | /* |
d62a17ae | 2 | * IS-IS Rout(e)ing protocol - isisd.h |
eb5d44eb | 3 | * |
4 | * Copyright (C) 2001,2002 Sampo Saaristo | |
d62a17ae | 5 | * Tampere University of Technology |
eb5d44eb | 6 | * Institute of Communications Engineering |
7 | * | |
d62a17ae | 8 | * This program is free software; you can redistribute it and/or modify it |
9 | * under the terms of the GNU General Public Licenseas published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
eb5d44eb | 11 | * any later version. |
12 | * | |
d62a17ae | 13 | * This program is distributed in the hope that it will be useful,but WITHOUT |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
eb5d44eb | 16 | * more details. |
896014f4 DL |
17 | * |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
eb5d44eb | 21 | */ |
22 | ||
23 | #ifndef ISISD_H | |
24 | #define ISISD_H | |
25 | ||
91283e76 DS |
26 | #include "vty.h" |
27 | ||
65f9a9a8 DL |
28 | #include "isisd/isis_constants.h" |
29 | #include "isisd/isis_common.h" | |
f3ccedaa | 30 | #include "isisd/isis_redist.h" |
65f9a9a8 DL |
31 | #include "isis_flags.h" |
32 | #include "dict.h" | |
4a1ab8e4 | 33 | #include "isis_memory.h" |
676a4ea3 | 34 | #include "qobj.h" |
f3ccedaa | 35 | |
76e292f9 DS |
36 | extern struct zebra_privs_t isisd_privs; |
37 | ||
eb5d44eb | 38 | /* uncomment if you are a developer in bug hunt */ |
39 | /* #define EXTREME_DEBUG */ | |
8955008f | 40 | /* #define EXTREME_DICT_DEBUG */ |
eb5d44eb | 41 | |
d62a17ae | 42 | struct isis { |
d7c0a89a | 43 | unsigned long process_id; |
d62a17ae | 44 | int sysid_set; |
d7c0a89a QY |
45 | uint8_t sysid[ISIS_SYS_ID_LEN]; /* SystemID for this IS */ |
46 | uint32_t router_id; /* Router ID from zebra */ | |
d62a17ae | 47 | struct list *area_list; /* list of IS-IS areas */ |
48 | struct list *init_circ_list; | |
49 | struct list *nexthops; /* IPv4 next hops from this IS */ | |
50 | struct list *nexthops6; /* IPv6 next hops from this IS */ | |
d7c0a89a | 51 | uint8_t max_area_addrs; /* maximumAreaAdresses */ |
d62a17ae | 52 | struct area_addr *man_area_addrs; /* manualAreaAddresses */ |
d7c0a89a | 53 | uint32_t debugs; /* bitmap for debug */ |
d62a17ae | 54 | time_t uptime; /* when did we start */ |
98c5bc15 | 55 | struct thread *t_dync_clean; /* dynamic hostname cache cleanup thread */ |
c59f88c8 | 56 | uint32_t circuit_ids_used[8]; /* 256 bits to track circuit ids 1 through 255 */ |
d62a17ae | 57 | |
58 | struct route_table *ext_info[REDIST_PROTOCOL_COUNT]; | |
59 | ||
60 | QOBJ_FIELDS | |
eb5d44eb | 61 | }; |
62 | ||
3f045a08 | 63 | extern struct isis *isis; |
676a4ea3 | 64 | DECLARE_QOBJ_TYPE(isis_area) |
3f045a08 | 65 | |
be985ba0 CF |
66 | enum spf_tree_id { |
67 | SPFTREE_IPV4 = 0, | |
68 | SPFTREE_IPV6, | |
69 | SPFTREE_COUNT | |
70 | }; | |
71 | ||
d62a17ae | 72 | struct isis_area { |
73 | struct isis *isis; /* back pointer */ | |
74 | dict_t *lspdb[ISIS_LEVELS]; /* link-state dbs */ | |
be985ba0 | 75 | struct isis_spftree *spftree[SPFTREE_COUNT][ISIS_LEVELS]; |
b20ccb3a | 76 | #define DEFAULT_LSP_MTU 1497 |
d62a17ae | 77 | unsigned int lsp_mtu; /* Size of LSPs to generate */ |
78 | struct list *circuit_list; /* IS-IS circuits */ | |
79 | struct flags flags; | |
80 | struct thread *t_tick; /* LSP walker */ | |
81 | struct thread *t_lsp_refresh[ISIS_LEVELS]; | |
82 | /* t_lsp_refresh is used in two ways: | |
83 | * a) regular refresh of LSPs | |
84 | * b) (possibly throttled) updates to LSPs | |
85 | * | |
86 | * The lsp_regenerate_pending flag tracks whether the timer is active | |
87 | * for the a) or the b) case. | |
88 | * | |
89 | * It is of utmost importance to clear this flag when the timer is | |
90 | * rescheduled for normal refresh, because otherwise, updates will | |
91 | * be delayed until the next regular refresh. | |
92 | */ | |
93 | int lsp_regenerate_pending[ISIS_LEVELS]; | |
94 | ||
95 | /* | |
96 | * Configurables | |
97 | */ | |
98 | struct isis_passwd area_passwd; | |
99 | struct isis_passwd domain_passwd; | |
100 | /* do we support dynamic hostnames? */ | |
101 | char dynhostname; | |
102 | /* do we support new style metrics? */ | |
103 | char newmetric; | |
104 | char oldmetric; | |
105 | /* identifies the routing instance */ | |
106 | char *area_tag; | |
107 | /* area addresses for this area */ | |
108 | struct list *area_addrs; | |
d7c0a89a | 109 | uint16_t max_lsp_lifetime[ISIS_LEVELS]; |
d62a17ae | 110 | char is_type; /* level-1 level-1-2 or level-2-only */ |
111 | /* are we overloaded? */ | |
112 | char overload_bit; | |
113 | /* L1/L2 router identifier for inter-area traffic */ | |
114 | char attached_bit; | |
d7c0a89a | 115 | uint16_t lsp_refresh[ISIS_LEVELS]; |
d62a17ae | 116 | /* minimum time allowed before lsp retransmission */ |
d7c0a89a | 117 | uint16_t lsp_gen_interval[ISIS_LEVELS]; |
d62a17ae | 118 | /* min interval between between consequtive SPFs */ |
d7c0a89a | 119 | uint16_t min_spf_interval[ISIS_LEVELS]; |
d62a17ae | 120 | /* the percentage of LSP mtu size used, before generating a new frag */ |
121 | int lsp_frag_threshold; | |
122 | int ip_circuits; | |
123 | /* logging adjacency changes? */ | |
d7c0a89a | 124 | uint8_t log_adj_changes; |
d62a17ae | 125 | /* multi topology settings */ |
126 | struct list *mt_settings; | |
127 | int ipv6_circuits; | |
128 | /* Counters */ | |
d7c0a89a | 129 | uint32_t circuit_state_changes; |
d62a17ae | 130 | struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT] |
131 | [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS]; | |
132 | struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS]; | |
133 | ||
134 | struct spf_backoff *spf_delay_ietf[ISIS_LEVELS]; /*Structure with IETF | |
135 | SPF algo | |
136 | parameters*/ | |
137 | struct thread *spf_timer[ISIS_LEVELS]; | |
138 | ||
139 | QOBJ_FIELDS | |
eb5d44eb | 140 | }; |
676a4ea3 | 141 | DECLARE_QOBJ_TYPE(isis_area) |
eb5d44eb | 142 | |
d62a17ae | 143 | void isis_init(void); |
3f045a08 JB |
144 | void isis_new(unsigned long); |
145 | struct isis_area *isis_area_create(const char *); | |
d62a17ae | 146 | struct isis_area *isis_area_lookup(const char *); |
147 | int isis_area_get(struct vty *vty, const char *area_tag); | |
3f045a08 JB |
148 | void print_debug(struct vty *, int, int); |
149 | ||
3dace42d CF |
150 | void isis_area_invalidate_routes(struct isis_area *area, int levels); |
151 | void isis_area_verify_routes(struct isis_area *area); | |
152 | ||
a38a72db CF |
153 | void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit); |
154 | void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit); | |
155 | void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname); | |
156 | void isis_area_metricstyle_set(struct isis_area *area, bool old_metric, | |
157 | bool new_metric); | |
6754fc66 CF |
158 | void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu); |
159 | void isis_area_is_type_set(struct isis_area *area, int is_type); | |
466ed406 | 160 | void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level, |
d62a17ae | 161 | uint16_t max_lsp_lifetime); |
466ed406 CF |
162 | void isis_area_lsp_refresh_set(struct isis_area *area, int level, |
163 | uint16_t lsp_refresh); | |
9093b230 | 164 | /* IS_LEVEL_1 sets area_passwd, IS_LEVEL_2 domain_passwd */ |
d62a17ae | 165 | int isis_area_passwd_unset(struct isis_area *area, int level); |
166 | int isis_area_passwd_cleartext_set(struct isis_area *area, int level, | |
d7c0a89a | 167 | const char *passwd, uint8_t snp_auth); |
d62a17ae | 168 | int isis_area_passwd_hmac_md5_set(struct isis_area *area, int level, |
d7c0a89a | 169 | const char *passwd, uint8_t snp_auth); |
d62a17ae | 170 | void isis_vty_init(void); |
65f9a9a8 | 171 | |
3f045a08 JB |
172 | /* Master of threads. */ |
173 | extern struct thread_master *master; | |
eb5d44eb | 174 | |
175 | #define DEBUG_ADJ_PACKETS (1<<0) | |
176 | #define DEBUG_CHECKSUM_ERRORS (1<<1) | |
177 | #define DEBUG_LOCAL_UPDATES (1<<2) | |
178 | #define DEBUG_PROTOCOL_ERRORS (1<<3) | |
179 | #define DEBUG_SNP_PACKETS (1<<4) | |
180 | #define DEBUG_UPDATE_PACKETS (1<<5) | |
181 | #define DEBUG_SPF_EVENTS (1<<6) | |
182 | #define DEBUG_SPF_STATS (1<<7) | |
183 | #define DEBUG_SPF_TRIGGERS (1<<8) | |
184 | #define DEBUG_RTE_EVENTS (1<<9) | |
185 | #define DEBUG_EVENTS (1<<10) | |
c89c05dd | 186 | #define DEBUG_ZEBRA (1<<11) |
3f045a08 | 187 | #define DEBUG_PACKET_DUMP (1<<12) |
14872644 | 188 | #define DEBUG_LSP_GEN (1<<13) |
414766a1 | 189 | #define DEBUG_LSP_SCHED (1<<14) |
14872644 | 190 | |
d62a17ae | 191 | #define lsp_debug(...) \ |
192 | do { \ | |
193 | if (isis->debugs & DEBUG_LSP_GEN) \ | |
194 | zlog_debug(__VA_ARGS__); \ | |
195 | } while (0) | |
196 | ||
197 | #define sched_debug(...) \ | |
198 | do { \ | |
199 | if (isis->debugs & DEBUG_LSP_SCHED) \ | |
200 | zlog_debug(__VA_ARGS__); \ | |
201 | } while (0) | |
414766a1 | 202 | |
f8c06e2c OD |
203 | #define DEBUG_TE (1<<13) |
204 | ||
205 | #define IS_DEBUG_ISIS(x) (isis->debugs & x) | |
206 | ||
eb5d44eb | 207 | #endif /* ISISD_H */ |