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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 DL |
33 | #include "isis_flags.h" |
34 | #include "dict.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 */ | |
8955008f | 61 | /* #define EXTREME_DICT_DEBUG */ |
eb5d44eb | 62 | |
8e6fb83b CF |
63 | struct fabricd; |
64 | ||
d62a17ae | 65 | struct isis { |
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; | |
72 | struct list *nexthops; /* IPv4 next hops from this IS */ | |
73 | struct list *nexthops6; /* IPv6 next hops from this IS */ | |
d7c0a89a | 74 | uint8_t max_area_addrs; /* maximumAreaAdresses */ |
d62a17ae | 75 | struct area_addr *man_area_addrs; /* manualAreaAddresses */ |
d7c0a89a | 76 | uint32_t debugs; /* bitmap for debug */ |
d62a17ae | 77 | time_t uptime; /* when did we start */ |
98c5bc15 | 78 | struct thread *t_dync_clean; /* dynamic hostname cache cleanup thread */ |
c59f88c8 | 79 | uint32_t circuit_ids_used[8]; /* 256 bits to track circuit ids 1 through 255 */ |
d62a17ae | 80 | |
81 | struct route_table *ext_info[REDIST_PROTOCOL_COUNT]; | |
82 | ||
83 | QOBJ_FIELDS | |
eb5d44eb | 84 | }; |
85 | ||
3f045a08 | 86 | extern struct isis *isis; |
676a4ea3 | 87 | DECLARE_QOBJ_TYPE(isis_area) |
3f045a08 | 88 | |
be985ba0 CF |
89 | enum spf_tree_id { |
90 | SPFTREE_IPV4 = 0, | |
91 | SPFTREE_IPV6, | |
321c1bbb | 92 | SPFTREE_DSTSRC, |
be985ba0 CF |
93 | SPFTREE_COUNT |
94 | }; | |
95 | ||
9196731f CF |
96 | struct lsp_refresh_arg { |
97 | struct isis_area *area; | |
98 | int level; | |
99 | }; | |
100 | ||
e0df3206 EDP |
101 | /* for yang configuration */ |
102 | enum isis_metric_style { | |
103 | ISIS_NARROW_METRIC = 0, | |
104 | ISIS_WIDE_METRIC, | |
105 | ISIS_TRANSITION_METRIC, | |
106 | }; | |
107 | ||
d62a17ae | 108 | struct isis_area { |
109 | struct isis *isis; /* back pointer */ | |
110 | dict_t *lspdb[ISIS_LEVELS]; /* link-state dbs */ | |
be985ba0 | 111 | struct isis_spftree *spftree[SPFTREE_COUNT][ISIS_LEVELS]; |
b20ccb3a | 112 | #define DEFAULT_LSP_MTU 1497 |
d62a17ae | 113 | unsigned int lsp_mtu; /* Size of LSPs to generate */ |
114 | struct list *circuit_list; /* IS-IS circuits */ | |
115 | struct flags flags; | |
116 | struct thread *t_tick; /* LSP walker */ | |
117 | struct thread *t_lsp_refresh[ISIS_LEVELS]; | |
f93025e1 | 118 | struct timeval last_lsp_refresh_event[ISIS_LEVELS]; |
d62a17ae | 119 | /* t_lsp_refresh is used in two ways: |
120 | * a) regular refresh of LSPs | |
121 | * b) (possibly throttled) updates to LSPs | |
122 | * | |
123 | * The lsp_regenerate_pending flag tracks whether the timer is active | |
124 | * for the a) or the b) case. | |
125 | * | |
126 | * It is of utmost importance to clear this flag when the timer is | |
127 | * rescheduled for normal refresh, because otherwise, updates will | |
128 | * be delayed until the next regular refresh. | |
129 | */ | |
130 | int lsp_regenerate_pending[ISIS_LEVELS]; | |
131 | ||
8e6fb83b CF |
132 | struct fabricd *fabricd; |
133 | ||
d62a17ae | 134 | /* |
135 | * Configurables | |
136 | */ | |
137 | struct isis_passwd area_passwd; | |
138 | struct isis_passwd domain_passwd; | |
139 | /* do we support dynamic hostnames? */ | |
140 | char dynhostname; | |
141 | /* do we support new style metrics? */ | |
142 | char newmetric; | |
143 | char oldmetric; | |
144 | /* identifies the routing instance */ | |
145 | char *area_tag; | |
146 | /* area addresses for this area */ | |
147 | struct list *area_addrs; | |
d7c0a89a | 148 | uint16_t max_lsp_lifetime[ISIS_LEVELS]; |
d62a17ae | 149 | char is_type; /* level-1 level-1-2 or level-2-only */ |
150 | /* are we overloaded? */ | |
151 | char overload_bit; | |
152 | /* L1/L2 router identifier for inter-area traffic */ | |
153 | char attached_bit; | |
d7c0a89a | 154 | uint16_t lsp_refresh[ISIS_LEVELS]; |
d62a17ae | 155 | /* minimum time allowed before lsp retransmission */ |
d7c0a89a | 156 | uint16_t lsp_gen_interval[ISIS_LEVELS]; |
d62a17ae | 157 | /* min interval between between consequtive SPFs */ |
d7c0a89a | 158 | uint16_t min_spf_interval[ISIS_LEVELS]; |
d62a17ae | 159 | /* the percentage of LSP mtu size used, before generating a new frag */ |
160 | int lsp_frag_threshold; | |
062f4d36 | 161 | uint64_t lsp_gen_count[ISIS_LEVELS]; |
6f004b60 | 162 | uint64_t lsp_purge_count[ISIS_LEVELS]; |
d62a17ae | 163 | int ip_circuits; |
164 | /* logging adjacency changes? */ | |
d7c0a89a | 165 | uint8_t log_adj_changes; |
d62a17ae | 166 | /* multi topology settings */ |
167 | struct list *mt_settings; | |
2e2a8b91 OD |
168 | /* MPLS-TE settings */ |
169 | struct mpls_te_area *mta; | |
d62a17ae | 170 | int ipv6_circuits; |
2c92bee4 | 171 | bool purge_originator; |
d62a17ae | 172 | /* Counters */ |
d7c0a89a | 173 | uint32_t circuit_state_changes; |
d62a17ae | 174 | struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT] |
175 | [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS]; | |
176 | struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS]; | |
177 | ||
178 | struct spf_backoff *spf_delay_ietf[ISIS_LEVELS]; /*Structure with IETF | |
179 | SPF algo | |
180 | parameters*/ | |
181 | struct thread *spf_timer[ISIS_LEVELS]; | |
9196731f CF |
182 | |
183 | struct lsp_refresh_arg lsp_refresh_arg[ISIS_LEVELS]; | |
d62a17ae | 184 | |
39bb53d6 CF |
185 | pdu_counter_t pdu_tx_counters; |
186 | pdu_counter_t pdu_rx_counters; | |
86d6f80d | 187 | uint64_t lsp_rxmt_count; |
39bb53d6 | 188 | |
d62a17ae | 189 | QOBJ_FIELDS |
eb5d44eb | 190 | }; |
676a4ea3 | 191 | DECLARE_QOBJ_TYPE(isis_area) |
eb5d44eb | 192 | |
d62a17ae | 193 | void isis_init(void); |
3f045a08 JB |
194 | void isis_new(unsigned long); |
195 | struct isis_area *isis_area_create(const char *); | |
d62a17ae | 196 | struct isis_area *isis_area_lookup(const char *); |
197 | int isis_area_get(struct vty *vty, const char *area_tag); | |
aaf2fd21 | 198 | int isis_area_destroy(const char *area_tag); |
3f045a08 | 199 | void print_debug(struct vty *, int, int); |
eb2bcb28 | 200 | struct isis_lsp *lsp_for_arg(const char *argv, dict_t *lspdb); |
3f045a08 | 201 | |
3dace42d CF |
202 | void isis_area_invalidate_routes(struct isis_area *area, int levels); |
203 | void isis_area_verify_routes(struct isis_area *area); | |
204 | ||
a38a72db CF |
205 | void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit); |
206 | void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit); | |
207 | void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname); | |
208 | void isis_area_metricstyle_set(struct isis_area *area, bool old_metric, | |
209 | bool new_metric); | |
6754fc66 CF |
210 | void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu); |
211 | void isis_area_is_type_set(struct isis_area *area, int is_type); | |
466ed406 | 212 | void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level, |
d62a17ae | 213 | uint16_t max_lsp_lifetime); |
466ed406 CF |
214 | void isis_area_lsp_refresh_set(struct isis_area *area, int level, |
215 | uint16_t lsp_refresh); | |
9093b230 | 216 | /* IS_LEVEL_1 sets area_passwd, IS_LEVEL_2 domain_passwd */ |
d62a17ae | 217 | int isis_area_passwd_unset(struct isis_area *area, int level); |
218 | int isis_area_passwd_cleartext_set(struct isis_area *area, int level, | |
d7c0a89a | 219 | const char *passwd, uint8_t snp_auth); |
d62a17ae | 220 | int isis_area_passwd_hmac_md5_set(struct isis_area *area, int level, |
d7c0a89a | 221 | const char *passwd, uint8_t snp_auth); |
65f9a9a8 | 222 | |
20bd27e2 EDP |
223 | extern const struct frr_yang_module_info frr_isisd_info; |
224 | extern void isis_northbound_init(void); | |
9414b6f6 EDP |
225 | |
226 | /* YANG northbound notifications */ | |
227 | extern void isis_notif_db_overload(const struct isis_area *area, bool overload); | |
56e22fb6 EDP |
228 | extern void isis_notif_lsp_too_large(const struct isis_circuit *circuit, |
229 | uint32_t pdu_size, const char *lsp_id); | |
392b89f3 EDP |
230 | extern void isis_notif_if_state_change(const struct isis_circuit *circuit, |
231 | bool down); | |
a2370545 EDP |
232 | extern void isis_notif_corrupted_lsp(const struct isis_area *area, |
233 | const char *lsp_id); /* currently unused */ | |
b21b068d EDP |
234 | extern void isis_notif_lsp_exceed_max(const struct isis_area *area, |
235 | const char *lsp_id); | |
2ab5a2d1 EDP |
236 | extern void |
237 | isis_notif_max_area_addr_mismatch(const struct isis_circuit *circuit, | |
238 | uint8_t max_area_addrs, const char *raw_pdu); | |
3380c990 EDP |
239 | extern void |
240 | isis_notif_authentication_type_failure(const struct isis_circuit *circuit, | |
241 | const char *raw_pdu); | |
242 | extern void | |
243 | isis_notif_authentication_failure(const struct isis_circuit *circuit, | |
244 | const char *raw_pdu); | |
de983bb8 EDP |
245 | extern void isis_notif_adj_state_change(const struct isis_adjacency *adj, |
246 | int new_state, const char *reason); | |
af6911c9 EDP |
247 | extern void isis_notif_reject_adjacency(const struct isis_circuit *circuit, |
248 | const char *reason, | |
249 | const char *raw_pdu); | |
9d92b84b EDP |
250 | extern void isis_notif_area_mismatch(const struct isis_circuit *circuit, |
251 | const char *raw_pdu); | |
8375020a EDP |
252 | extern void isis_notif_lsp_received(const struct isis_circuit *circuit, |
253 | const char *lsp_id, uint32_t seqno, | |
254 | uint32_t timestamp, const char *sys_id); | |
998011fa EDP |
255 | extern void isis_notif_lsp_gen(const struct isis_area *area, const char *lsp_id, |
256 | uint32_t seqno, uint32_t timestamp); | |
e98d7633 EDP |
257 | extern void isis_notif_id_len_mismatch(const struct isis_circuit *circuit, |
258 | uint8_t rcv_id_len, const char *raw_pdu); | |
0532bd84 EDP |
259 | extern void isis_notif_version_skew(const struct isis_circuit *circuit, |
260 | uint8_t version, const char *raw_pdu); | |
86370604 EDP |
261 | extern void isis_notif_lsp_error(const struct isis_circuit *circuit, |
262 | const char *lsp_id, const char *raw_pdu, | |
263 | uint32_t offset, uint8_t tlv_type); | |
897989f8 EDP |
264 | extern void isis_notif_seqno_skipped(const struct isis_circuit *circuit, |
265 | const char *lsp_id); | |
d32f213a EDP |
266 | extern void isis_notif_own_lsp_purge(const struct isis_circuit *circuit, |
267 | const char *lsp_id); | |
268 | ||
3f045a08 JB |
269 | /* Master of threads. */ |
270 | extern struct thread_master *master; | |
eb5d44eb | 271 | |
272 | #define DEBUG_ADJ_PACKETS (1<<0) | |
26687d25 CF |
273 | #define DEBUG_SNP_PACKETS (1<<1) |
274 | #define DEBUG_UPDATE_PACKETS (1<<2) | |
275 | #define DEBUG_SPF_EVENTS (1<<3) | |
276 | #define DEBUG_RTE_EVENTS (1<<4) | |
277 | #define DEBUG_EVENTS (1<<5) | |
278 | #define DEBUG_PACKET_DUMP (1<<6) | |
279 | #define DEBUG_LSP_GEN (1<<7) | |
280 | #define DEBUG_LSP_SCHED (1<<8) | |
ddb33326 | 281 | #define DEBUG_FLOODING (1<<9) |
26687d25 | 282 | #define DEBUG_BFD (1<<10) |
161fa356 | 283 | #define DEBUG_TX_QUEUE (1<<11) |
14872644 | 284 | |
d62a17ae | 285 | #define lsp_debug(...) \ |
286 | do { \ | |
287 | if (isis->debugs & DEBUG_LSP_GEN) \ | |
288 | zlog_debug(__VA_ARGS__); \ | |
289 | } while (0) | |
290 | ||
291 | #define sched_debug(...) \ | |
292 | do { \ | |
293 | if (isis->debugs & DEBUG_LSP_SCHED) \ | |
294 | zlog_debug(__VA_ARGS__); \ | |
295 | } while (0) | |
414766a1 | 296 | |
26687d25 | 297 | #define DEBUG_TE DEBUG_LSP_GEN |
f8c06e2c OD |
298 | |
299 | #define IS_DEBUG_ISIS(x) (isis->debugs & x) | |
300 | ||
eb5d44eb | 301 | #endif /* ISISD_H */ |