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[mirror_frr.git] / isisd / isis_circuit.h
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eb5d44eb 1/*
2 * IS-IS Rout(e)ing protocol - isis_circuit.h
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 ISIS_CIRCUIT_H
24#define ISIS_CIRCUIT_H
25
91283e76 26#include "vty.h"
65f9a9a8 27#include "if.h"
676a4ea3 28#include "qobj.h"
d1be6968 29#include "prefix.h"
64dd3ffe 30#include "ferr.h"
65f9a9a8
DL		 31
32#include "isis_constants.h"
33#include "isis_common.h"
91283e76 34
ef7bd2a3
DS		 35DECLARE_HOOK(isis_if_new_hook, (struct interface *ifp), (ifp));
36
58e16237
CF		 37struct isis_lsp;
38
d62a17ae 39struct password {
40 struct password *next;
41 int len;
d7c0a89a 42 uint8_t *pass;
eb5d44eb 43};
44
d62a17ae 45struct metric {
d7c0a89a
QY		 46 uint8_t metric_default;
47 uint8_t metric_error;
48 uint8_t metric_expense;
49 uint8_t metric_delay;
eb5d44eb 50};
51
d62a17ae 52struct isis_bcast_info {
981cc629
RW		 53 uint8_t snpa[ETH_ALEN]; /* SNPA of this circuit */
54 char run_dr_elect[ISIS_LEVELS]; /* Should we run dr election ? */
55 struct thread *t_run_dr[ISIS_LEVELS]; /* DR election thread */
56 struct thread *t_send_lan_hello[ISIS_LEVELS]; /* send LAN IIHs in this
57 thread */
58 struct list *adjdb[ISIS_LEVELS]; /* adjacency dbs */
59 struct list *lan_neighs[ISIS_LEVELS]; /* list of lx neigh snpa */
60 char is_dr[ISIS_LEVELS]; /* Are we level x DR ? */
d7c0a89a
QY		 61 uint8_t l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
62 uint8_t l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
981cc629
RW		 63 struct thread *t_refresh_pseudo_lsp[ISIS_LEVELS]; /* refresh pseudo-node
64 LSPs */
eb5d44eb 65};
66
d62a17ae 67struct isis_p2p_info {
68 struct isis_adjacency *neighbor;
69 struct thread *t_send_p2p_hello; /* send P2P IIHs in this thread */
eb5d44eb 70};
71
215eccb0
CF		 72struct bfd_info;
73
7da4aa3c
CF		 74struct isis_circuit_arg {
75 int level;
76 struct isis_circuit *circuit;
77};
78
d62a17ae 79struct isis_circuit {
80 int state;
d7c0a89a 81 uint8_t circuit_id; /* l1/l2 bcast CircuitID */
d62a17ae 82 struct isis_area *area; /* back pointer to the area */
83 struct interface *interface; /* interface info from z */
84 int fd; /* IS-IS l1/2 socket */
85 int sap_length; /* SAP length for DLPI */
86 struct nlpids nlpids;
87 /*
88 * Threads
89 */
90 struct thread *t_read;
981cc629
RW		 91 struct thread *t_send_csnp[ISIS_LEVELS];
92 struct thread *t_send_psnp[ISIS_LEVELS];
9b39405f 93 struct isis_tx_queue *tx_queue;
981cc629
RW		 94 struct isis_circuit_arg
95 level_arg[ISIS_LEVELS]; /* used as argument for threads */
9b39405f 96
d62a17ae 97 /* there is no real point in two streams, just for programming kicker */
d7c0a89a 98 int (*rx)(struct isis_circuit *circuit, uint8_t *ssnpa);
d62a17ae 99 struct stream *rcv_stream; /* Stream for receiving */
100 int (*tx)(struct isis_circuit *circuit, int level);
101 struct stream *snd_stream; /* Stream for sending */
102 int idx; /* idx in S[RM|SN] flags */
3f045a08
JB		 103#define CIRCUIT_T_UNKNOWN 0
104#define CIRCUIT_T_BROADCAST 1
105#define CIRCUIT_T_P2P 2
106#define CIRCUIT_T_LOOPBACK 3
d62a17ae 107 int circ_type; /* type of the physical interface */
108 int circ_type_config; /* config type of the physical interface */
109 union {
110 struct isis_bcast_info bc;
111 struct isis_p2p_info p2p;
112 } u;
981cc629 113 uint8_t priority[ISIS_LEVELS]; /* l1/2 IS configured priority */
d62a17ae 114 int pad_hellos; /* add padding to Hello PDUs ? */
115 char ext_domain; /* externalDomain (boolean) */
116 int lsp_regenerate_pending[ISIS_LEVELS];
117 /*
118 * Configurables
119 */
120 struct isis_passwd passwd; /* Circuit rx/tx password */
121 int is_type; /* circuit is type == level of circuit
122 * differentiated from circuit type (media) */
981cc629
RW		 123 uint32_t hello_interval[ISIS_LEVELS]; /* hello-interval in seconds */
124 uint16_t hello_multiplier[ISIS_LEVELS]; /* hello-multiplier */
125 uint16_t csnp_interval[ISIS_LEVELS]; /* csnp-interval in seconds */
126 uint16_t psnp_interval[ISIS_LEVELS]; /* psnp-interval in seconds */
127 uint8_t metric[ISIS_LEVELS];
128 uint32_t te_metric[ISIS_LEVELS];
1b3f47d0 129 struct isis_ext_subtlvs *ext; /* Extended parameters (TE + Adj SID */
d62a17ae 130 int ip_router; /* Route IP ? */
131 int is_passive; /* Is Passive ? */
132 struct list *mt_settings; /* IS-IS MT Settings */
133 struct list *ip_addrs; /* our IP addresses */
134 int ipv6_router; /* Route IPv6 ? */
135 struct list *ipv6_link; /* our link local IPv6 addresses */
136 struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
981cc629 137 uint16_t upadjcount[ISIS_LEVELS];
3f045a08 138#define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01
d7c0a89a 139 uint8_t flags;
58e5d748 140 bool disable_threeway_adj;
215eccb0 141 struct bfd_info *bfd_info;
d62a17ae 142 /*
143 * Counters as in 10589--11.2.5.9
144 */
d7c0a89a
QY		 145 uint32_t adj_state_changes; /* changesInAdjacencyState */
146 uint32_t init_failures; /* intialisationFailures */
147 uint32_t ctrl_pdus_rxed; /* controlPDUsReceived */
148 uint32_t ctrl_pdus_txed; /* controlPDUsSent */
981cc629
RW		 149 uint32_t desig_changes[ISIS_LEVELS]; /* lanLxDesignatedIntermediateSystemChanges
150 */
d7c0a89a 151 uint32_t rej_adjacencies; /* rejectedAdjacencies */
c32496ee
RW		 152 /*
153 * Counters as in ietf-isis@2019-09-09.yang
154 */
155 uint32_t id_len_mismatches; /* id-len-mismatch */
156 uint32_t max_area_addr_mismatches; /* max-area-addresses-mismatch */
157 uint32_t auth_type_failures; /*authentication-type-fails */
158 uint32_t auth_failures; /* authentication-fails */
d62a17ae 159
160 QOBJ_FIELDS
eb5d44eb 161};
676a4ea3 162DECLARE_QOBJ_TYPE(isis_circuit)
eb5d44eb 163
d62a17ae 164void isis_circuit_init(void);
165struct isis_circuit *isis_circuit_new(void);
166void isis_circuit_del(struct isis_circuit *circuit);
167struct isis_circuit *circuit_lookup_by_ifp(struct interface *ifp,
168 struct list *list);
169struct isis_circuit *circuit_scan_by_ifp(struct interface *ifp);
170void isis_circuit_configure(struct isis_circuit *circuit,
171 struct isis_area *area);
172void isis_circuit_deconfigure(struct isis_circuit *circuit,
173 struct isis_area *area);
174void isis_circuit_if_add(struct isis_circuit *circuit, struct interface *ifp);
175void isis_circuit_if_del(struct isis_circuit *circuit, struct interface *ifp);
176void isis_circuit_if_bind(struct isis_circuit *circuit, struct interface *ifp);
177void isis_circuit_if_unbind(struct isis_circuit *circuit,
178 struct interface *ifp);
179void isis_circuit_add_addr(struct isis_circuit *circuit,
180 struct connected *conn);
181void isis_circuit_del_addr(struct isis_circuit *circuit,
182 struct connected *conn);
183void isis_circuit_prepare(struct isis_circuit *circuit);
184int isis_circuit_up(struct isis_circuit *circuit);
185void isis_circuit_down(struct isis_circuit *);
186void circuit_update_nlpids(struct isis_circuit *circuit);
187void isis_circuit_print_vty(struct isis_circuit *circuit, struct vty *vty,
188 char detail);
b20ccb3a
CF		 189size_t isis_circuit_pdu_size(struct isis_circuit *circuit);
190void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream);
3f045a08 191
d62a17ae 192struct isis_circuit *isis_circuit_create(struct isis_area *area,
193 struct interface *ifp);
194void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router,
195 bool ipv6_router);
64dd3ffe 196ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive);
d62a17ae 197void isis_circuit_is_type_set(struct isis_circuit *circuit, int is_type);
d0820765 198void isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type);
d62a17ae 199
64dd3ffe
DL		 200ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level,
201 int metric);
d62a17ae 202
64dd3ffe 203ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit);
e28544ed
QY		 204ferr_r isis_circuit_passwd_set(struct isis_circuit *circuit,
205 uint8_t passwd_type, const char *passwd);
64dd3ffe
DL		 206ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit,
207 const char *passwd);
208ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit,
209 const char *passwd);
d62a17ae 210
211int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid,
212 bool enabled);
064f4896 213
05e4ec37 214#ifdef FABRICD
d56afe53
CF		 215DECLARE_HOOK(isis_circuit_config_write,
216 (struct isis_circuit *circuit, struct vty *vty),
217 (circuit, vty))
05e4ec37 218#endif
d56afe53 219
eb5d44eb 220#endif /* _ZEBRA_ISIS_CIRCUIT_H */
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