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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" |
39bb53d6 | 31 | #include "isisd/isis_pdu_counter.h" |
aaf2fd21 | 32 | #include "isisd/isis_circuit.h" |
65f9a9a8 | 33 | #include "isis_flags.h" |
4bef0ec4 | 34 | #include "isis_lsp.h" |
4a1ab8e4 | 35 | #include "isis_memory.h" |
676a4ea3 | 36 | #include "qobj.h" |
f3ccedaa | 37 | |
7c0cbd0e CF |
38 | #ifdef FABRICD |
39 | static const bool fabricd = true; | |
40 | #define PROTO_TYPE ZEBRA_ROUTE_OPENFABRIC | |
41 | #define PROTO_NAME "openfabric" | |
42 | #define PROTO_HELP "OpenFabric routing protocol\n" | |
43 | #define PROTO_REDIST_STR FRR_REDIST_STR_FABRICD | |
44 | #define PROTO_REDIST_HELP FRR_REDIST_HELP_STR_FABRICD | |
45 | #define ROUTER_NODE OPENFABRIC_NODE | |
46 | #else | |
47 | static const bool fabricd = false; | |
48 | #define PROTO_TYPE ZEBRA_ROUTE_ISIS | |
49 | #define PROTO_NAME "isis" | |
50 | #define PROTO_HELP "IS-IS routing protocol\n" | |
51 | #define PROTO_REDIST_STR FRR_REDIST_STR_ISISD | |
52 | #define PROTO_REDIST_HELP FRR_REDIST_HELP_STR_ISISD | |
53 | #define ROUTER_NODE ISIS_NODE | |
20bd27e2 | 54 | extern void isis_cli_init(void); |
7c0cbd0e CF |
55 | #endif |
56 | ||
76e292f9 DS |
57 | extern struct zebra_privs_t isisd_privs; |
58 | ||
eb5d44eb | 59 | /* uncomment if you are a developer in bug hunt */ |
60 | /* #define EXTREME_DEBUG */ | |
eb5d44eb | 61 | |
8e6fb83b CF |
62 | struct fabricd; |
63 | ||
d62a17ae | 64 | struct isis { |
260fcb95 | 65 | vrf_id_t vrf_id; |
d7c0a89a | 66 | unsigned long process_id; |
d62a17ae | 67 | int sysid_set; |
d7c0a89a QY |
68 | uint8_t sysid[ISIS_SYS_ID_LEN]; /* SystemID for this IS */ |
69 | uint32_t router_id; /* Router ID from zebra */ | |
d62a17ae | 70 | struct list *area_list; /* list of IS-IS areas */ |
71 | struct list *init_circ_list; | |
363be4dd | 72 | struct list *nexthops; /* IP next hops from this IS */ |
d7c0a89a | 73 | uint8_t max_area_addrs; /* maximumAreaAdresses */ |
d62a17ae | 74 | struct area_addr *man_area_addrs; /* manualAreaAddresses */ |
d7c0a89a | 75 | uint32_t debugs; /* bitmap for debug */ |
d62a17ae | 76 | time_t uptime; /* when did we start */ |
98c5bc15 | 77 | struct thread *t_dync_clean; /* dynamic hostname cache cleanup thread */ |
c59f88c8 | 78 | uint32_t circuit_ids_used[8]; /* 256 bits to track circuit ids 1 through 255 */ |
d62a17ae | 79 | |
80 | struct route_table *ext_info[REDIST_PROTOCOL_COUNT]; | |
81 | ||
82 | QOBJ_FIELDS | |
eb5d44eb | 83 | }; |
84 | ||
3f045a08 | 85 | extern struct isis *isis; |
676a4ea3 | 86 | DECLARE_QOBJ_TYPE(isis_area) |
3f045a08 | 87 | |
be985ba0 CF |
88 | enum spf_tree_id { |
89 | SPFTREE_IPV4 = 0, | |
90 | SPFTREE_IPV6, | |
321c1bbb | 91 | SPFTREE_DSTSRC, |
be985ba0 CF |
92 | SPFTREE_COUNT |
93 | }; | |
94 | ||
9196731f CF |
95 | struct lsp_refresh_arg { |
96 | struct isis_area *area; | |
97 | int level; | |
98 | }; | |
99 | ||
e0df3206 EDP |
100 | /* for yang configuration */ |
101 | enum isis_metric_style { | |
102 | ISIS_NARROW_METRIC = 0, | |
103 | ISIS_WIDE_METRIC, | |
104 | ISIS_TRANSITION_METRIC, | |
105 | }; | |
106 | ||
d62a17ae | 107 | struct isis_area { |
108 | struct isis *isis; /* back pointer */ | |
4bef0ec4 | 109 | struct lspdb_head lspdb[ISIS_LEVELS]; /* link-state dbs */ |
be985ba0 | 110 | struct isis_spftree *spftree[SPFTREE_COUNT][ISIS_LEVELS]; |
b20ccb3a | 111 | #define DEFAULT_LSP_MTU 1497 |
d62a17ae | 112 | unsigned int lsp_mtu; /* Size of LSPs to generate */ |
113 | struct list *circuit_list; /* IS-IS circuits */ | |
114 | struct flags flags; | |
115 | struct thread *t_tick; /* LSP walker */ | |
116 | struct thread *t_lsp_refresh[ISIS_LEVELS]; | |
f93025e1 | 117 | struct timeval last_lsp_refresh_event[ISIS_LEVELS]; |
d62a17ae | 118 | /* t_lsp_refresh is used in two ways: |
119 | * a) regular refresh of LSPs | |
120 | * b) (possibly throttled) updates to LSPs | |
121 | * | |
122 | * The lsp_regenerate_pending flag tracks whether the timer is active | |
123 | * for the a) or the b) case. | |
124 | * | |
125 | * It is of utmost importance to clear this flag when the timer is | |
126 | * rescheduled for normal refresh, because otherwise, updates will | |
127 | * be delayed until the next regular refresh. | |
128 | */ | |
129 | int lsp_regenerate_pending[ISIS_LEVELS]; | |
130 | ||
8e6fb83b CF |
131 | struct fabricd *fabricd; |
132 | ||
d62a17ae | 133 | /* |
134 | * Configurables | |
135 | */ | |
136 | struct isis_passwd area_passwd; | |
137 | struct isis_passwd domain_passwd; | |
138 | /* do we support dynamic hostnames? */ | |
139 | char dynhostname; | |
140 | /* do we support new style metrics? */ | |
141 | char newmetric; | |
142 | char oldmetric; | |
143 | /* identifies the routing instance */ | |
144 | char *area_tag; | |
145 | /* area addresses for this area */ | |
146 | struct list *area_addrs; | |
d7c0a89a | 147 | uint16_t max_lsp_lifetime[ISIS_LEVELS]; |
d62a17ae | 148 | char is_type; /* level-1 level-1-2 or level-2-only */ |
149 | /* are we overloaded? */ | |
150 | char overload_bit; | |
151 | /* L1/L2 router identifier for inter-area traffic */ | |
152 | char attached_bit; | |
d7c0a89a | 153 | uint16_t lsp_refresh[ISIS_LEVELS]; |
d62a17ae | 154 | /* minimum time allowed before lsp retransmission */ |
d7c0a89a | 155 | uint16_t lsp_gen_interval[ISIS_LEVELS]; |
d62a17ae | 156 | /* min interval between between consequtive SPFs */ |
d7c0a89a | 157 | uint16_t min_spf_interval[ISIS_LEVELS]; |
d62a17ae | 158 | /* the percentage of LSP mtu size used, before generating a new frag */ |
159 | int lsp_frag_threshold; | |
062f4d36 | 160 | uint64_t lsp_gen_count[ISIS_LEVELS]; |
6f004b60 | 161 | uint64_t lsp_purge_count[ISIS_LEVELS]; |
d62a17ae | 162 | int ip_circuits; |
163 | /* logging adjacency changes? */ | |
d7c0a89a | 164 | uint8_t log_adj_changes; |
d62a17ae | 165 | /* multi topology settings */ |
166 | struct list *mt_settings; | |
2e2a8b91 OD |
167 | /* MPLS-TE settings */ |
168 | struct mpls_te_area *mta; | |
d62a17ae | 169 | int ipv6_circuits; |
2c92bee4 | 170 | bool purge_originator; |
d62a17ae | 171 | /* Counters */ |
d7c0a89a | 172 | uint32_t circuit_state_changes; |
d62a17ae | 173 | struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT] |
174 | [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS]; | |
175 | struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS]; | |
176 | ||
177 | struct spf_backoff *spf_delay_ietf[ISIS_LEVELS]; /*Structure with IETF | |
178 | SPF algo | |
179 | parameters*/ | |
180 | struct thread *spf_timer[ISIS_LEVELS]; | |
9196731f CF |
181 | |
182 | struct lsp_refresh_arg lsp_refresh_arg[ISIS_LEVELS]; | |
d62a17ae | 183 | |
39bb53d6 CF |
184 | pdu_counter_t pdu_tx_counters; |
185 | pdu_counter_t pdu_rx_counters; | |
86d6f80d | 186 | uint64_t lsp_rxmt_count; |
39bb53d6 | 187 | |
d62a17ae | 188 | QOBJ_FIELDS |
eb5d44eb | 189 | }; |
676a4ea3 | 190 | DECLARE_QOBJ_TYPE(isis_area) |
eb5d44eb | 191 | |
d62a17ae | 192 | void isis_init(void); |
260fcb95 | 193 | void isis_new(unsigned long process_id, vrf_id_t vrf_id); |
3f045a08 | 194 | struct isis_area *isis_area_create(const char *); |
d62a17ae | 195 | struct isis_area *isis_area_lookup(const char *); |
196 | int isis_area_get(struct vty *vty, const char *area_tag); | |
aaf2fd21 | 197 | int isis_area_destroy(const char *area_tag); |
3f045a08 | 198 | void print_debug(struct vty *, int, int); |
4bef0ec4 | 199 | struct isis_lsp *lsp_for_arg(struct lspdb_head *head, const char *argv); |
3f045a08 | 200 | |
3dace42d CF |
201 | void isis_area_invalidate_routes(struct isis_area *area, int levels); |
202 | void isis_area_verify_routes(struct isis_area *area); | |
203 | ||
a38a72db CF |
204 | void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit); |
205 | void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit); | |
206 | void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname); | |
207 | void isis_area_metricstyle_set(struct isis_area *area, bool old_metric, | |
208 | bool new_metric); | |
6754fc66 CF |
209 | void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu); |
210 | void isis_area_is_type_set(struct isis_area *area, int is_type); | |
466ed406 | 211 | void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level, |
d62a17ae | 212 | uint16_t max_lsp_lifetime); |
466ed406 CF |
213 | void isis_area_lsp_refresh_set(struct isis_area *area, int level, |
214 | uint16_t lsp_refresh); | |
9093b230 | 215 | /* IS_LEVEL_1 sets area_passwd, IS_LEVEL_2 domain_passwd */ |
d62a17ae | 216 | int isis_area_passwd_unset(struct isis_area *area, int level); |
217 | int isis_area_passwd_cleartext_set(struct isis_area *area, int level, | |
d7c0a89a | 218 | const char *passwd, uint8_t snp_auth); |
d62a17ae | 219 | int isis_area_passwd_hmac_md5_set(struct isis_area *area, int level, |
d7c0a89a | 220 | const char *passwd, uint8_t snp_auth); |
65f9a9a8 | 221 | |
3f045a08 JB |
222 | /* Master of threads. */ |
223 | extern struct thread_master *master; | |
eb5d44eb | 224 | |
225 | #define DEBUG_ADJ_PACKETS (1<<0) | |
26687d25 CF |
226 | #define DEBUG_SNP_PACKETS (1<<1) |
227 | #define DEBUG_UPDATE_PACKETS (1<<2) | |
228 | #define DEBUG_SPF_EVENTS (1<<3) | |
229 | #define DEBUG_RTE_EVENTS (1<<4) | |
230 | #define DEBUG_EVENTS (1<<5) | |
231 | #define DEBUG_PACKET_DUMP (1<<6) | |
232 | #define DEBUG_LSP_GEN (1<<7) | |
233 | #define DEBUG_LSP_SCHED (1<<8) | |
ddb33326 | 234 | #define DEBUG_FLOODING (1<<9) |
26687d25 | 235 | #define DEBUG_BFD (1<<10) |
161fa356 | 236 | #define DEBUG_TX_QUEUE (1<<11) |
14872644 | 237 | |
d62a17ae | 238 | #define lsp_debug(...) \ |
239 | do { \ | |
240 | if (isis->debugs & DEBUG_LSP_GEN) \ | |
241 | zlog_debug(__VA_ARGS__); \ | |
242 | } while (0) | |
243 | ||
244 | #define sched_debug(...) \ | |
245 | do { \ | |
246 | if (isis->debugs & DEBUG_LSP_SCHED) \ | |
247 | zlog_debug(__VA_ARGS__); \ | |
248 | } while (0) | |
414766a1 | 249 | |
26687d25 | 250 | #define DEBUG_TE DEBUG_LSP_GEN |
f8c06e2c OD |
251 | |
252 | #define IS_DEBUG_ISIS(x) (isis->debugs & x) | |
253 | ||
eb5d44eb | 254 | #endif /* ISISD_H */ |