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Diffstat (limited to 'isisd/isis_circuit.h')
| -rw-r--r-- | isisd/isis_circuit.h | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h new file mode 100644 index 0000000..7acde41 --- /dev/null +++ b/isisd/isis_circuit.h @@ -0,0 +1,247 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * IS-IS Rout(e)ing protocol - isis_circuit.h + * + * Copyright (C) 2001,2002 Sampo Saaristo + * Tampere University of Technology + * Institute of Communications Engineering + */ + +#ifndef ISIS_CIRCUIT_H +#define ISIS_CIRCUIT_H + +#include "vty.h" +#include "if.h" +#include "qobj.h" +#include "prefix.h" +#include "ferr.h" +#include "nexthop.h" + +#include "isis_constants.h" +#include "isis_common.h" +#include "isis_csm.h" + +DECLARE_HOOK(isis_if_new_hook, (struct interface *ifp), (ifp)); + +struct isis_lsp; + +struct password { + struct password *next; + int len; + uint8_t *pass; +}; + +struct metric { + uint8_t metric_default; + uint8_t metric_error; + uint8_t metric_expense; + uint8_t metric_delay; +}; + +struct isis_bcast_info { + uint8_t snpa[ETH_ALEN]; /* SNPA of this circuit */ + char run_dr_elect[ISIS_LEVELS]; /* Should we run dr election ? */ + struct event *t_run_dr[ISIS_LEVELS]; /* DR election thread */ + struct event *t_send_lan_hello[ISIS_LEVELS]; /* send LAN IIHs in this + thread */ + struct list *adjdb[ISIS_LEVELS]; /* adjacency dbs */ + struct list *lan_neighs[ISIS_LEVELS]; /* list of lx neigh snpa */ + char is_dr[ISIS_LEVELS]; /* Are we level x DR ? */ + uint8_t l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */ + uint8_t l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */ + struct event *t_refresh_pseudo_lsp[ISIS_LEVELS]; /* refresh pseudo-node + LSPs */ +}; + +struct isis_p2p_info { + struct isis_adjacency *neighbor; + struct event *t_send_p2p_hello; /* send P2P IIHs in this thread */ +}; + +struct isis_circuit_arg { + int level; + struct isis_circuit *circuit; +}; + +/* + * Hello padding types + */ +enum isis_hello_padding { + ISIS_HELLO_PADDING_ALWAYS, + ISIS_HELLO_PADDING_DISABLED, + ISIS_HELLO_PADDING_DURING_ADJACENCY_FORMATION +}; + +struct isis_circuit { + enum isis_circuit_state state; + uint8_t circuit_id; /* l1/l2 bcast CircuitID */ + time_t last_uptime; + struct isis *isis; + struct isis_area *area; /* back pointer to the area */ + struct interface *interface; /* interface info from z */ + int fd; /* IS-IS l1/2 socket */ + int sap_length; /* SAP length for DLPI */ + struct nlpids nlpids; + /* + * Threads + */ + struct event *t_read; + struct event *t_send_csnp[ISIS_LEVELS]; + struct event *t_send_psnp[ISIS_LEVELS]; + struct isis_tx_queue *tx_queue; + struct isis_circuit_arg + level_arg[ISIS_LEVELS]; /* used as argument for threads */ + + /* there is no real point in two streams, just for programming kicker */ + int (*rx)(struct isis_circuit *circuit, uint8_t *ssnpa); + struct stream *rcv_stream; /* Stream for receiving */ + int (*tx)(struct isis_circuit *circuit, int level); + struct stream *snd_stream; /* Stream for sending */ + int idx; /* idx in S[RM|SN] flags */ +#define CIRCUIT_T_UNKNOWN 0 +#define CIRCUIT_T_BROADCAST 1 +#define CIRCUIT_T_P2P 2 +#define CIRCUIT_T_LOOPBACK 3 + int circ_type; /* type of the physical interface */ + int circ_type_config; /* config type of the physical interface */ + union { + struct isis_bcast_info bc; + struct isis_p2p_info p2p; + } u; + uint8_t priority[ISIS_LEVELS]; /* l1/2 IS configured priority */ + enum isis_hello_padding pad_hellos; /* type of Hello PDUs padding */ + char ext_domain; /* externalDomain (boolean) */ + int lsp_regenerate_pending[ISIS_LEVELS]; + uint64_t lsp_error_counter; + + /* + * Configurables + */ + char *tag; /* area tag */ + struct isis_passwd passwd; /* Circuit rx/tx password */ + int is_type_config; /* configured circuit is type */ + int is_type; /* circuit is type == level of circuit + * differentiated from circuit type (media) */ + uint32_t hello_interval[ISIS_LEVELS]; /* hello-interval in seconds */ + uint16_t hello_multiplier[ISIS_LEVELS]; /* hello-multiplier */ + uint16_t csnp_interval[ISIS_LEVELS]; /* csnp-interval in seconds */ + uint16_t psnp_interval[ISIS_LEVELS]; /* psnp-interval in seconds */ + uint8_t metric[ISIS_LEVELS]; + uint32_t te_metric[ISIS_LEVELS]; + struct isis_ext_subtlvs *ext; /* Extended parameters (TE + Adj SID */ + int ip_router; /* Route IP ? */ + int is_passive; /* Is Passive ? */ + struct list *mt_settings; /* IS-IS MT Settings */ + struct list *ip_addrs; /* our IP addresses */ + int ipv6_router; /* Route IPv6 ? */ + struct list *ipv6_link; /* our link local IPv6 addresses */ + struct list *ipv6_non_link; /* our non-link local IPv6 addresses */ + uint16_t upadjcount[ISIS_LEVELS]; +#define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01 +#define ISIS_CIRCUIT_IF_DOWN_FROM_Z 0x02 + uint8_t flags; + bool disable_threeway_adj; + struct { + bool enabled; + char *profile; + } bfd_config; + struct ldp_sync_info *ldp_sync_info; + bool lfa_protection[ISIS_LEVELS]; + bool rlfa_protection[ISIS_LEVELS]; + uint32_t rlfa_max_metric[ISIS_LEVELS]; + struct hash *lfa_excluded_ifaces[ISIS_LEVELS]; + bool tilfa_protection[ISIS_LEVELS]; + bool tilfa_node_protection[ISIS_LEVELS]; + bool tilfa_link_fallback[ISIS_LEVELS]; + /* + * Counters as in 10589--11.2.5.9 + */ + uint32_t adj_state_changes; /* changesInAdjacencyState */ + uint32_t init_failures; /* intialisationFailures */ + uint32_t ctrl_pdus_rxed; /* controlPDUsReceived */ + uint32_t ctrl_pdus_txed; /* controlPDUsSent */ + uint32_t desig_changes[ISIS_LEVELS]; /* lanLxDesignatedIntermediateSystemChanges + */ + uint32_t rej_adjacencies; /* rejectedAdjacencies */ + /* + * Counters as in ietf-isis@2019-09-09.yang + */ + uint32_t id_len_mismatches; /* id-len-mismatch */ + uint32_t max_area_addr_mismatches; /* max-area-addresses-mismatch */ + uint32_t auth_type_failures; /*authentication-type-fails */ + uint32_t auth_failures; /* authentication-fails */ + + uint32_t snmp_id; /* Circuit id in snmp */ + + uint32_t snmp_adj_idx_gen; /* Create unique id for adjacency on creation + */ + struct list *snmp_adj_list; /* List in id order */ + + QOBJ_FIELDS; +}; +DECLARE_QOBJ_TYPE(isis_circuit); + +void isis_circuit_init(void); +struct isis_circuit *isis_circuit_new(struct interface *ifp, const char *tag); +void isis_circuit_del(struct isis_circuit *circuit); +struct isis_circuit *circuit_scan_by_ifp(struct interface *ifp); +void isis_circuit_configure(struct isis_circuit *circuit, + struct isis_area *area); +void isis_circuit_deconfigure(struct isis_circuit *circuit, + struct isis_area *area); +void isis_circuit_if_add(struct isis_circuit *circuit, struct interface *ifp); +void isis_circuit_if_del(struct isis_circuit *circuit, struct interface *ifp); +void isis_circuit_if_bind(struct isis_circuit *circuit, struct interface *ifp); +void isis_circuit_if_unbind(struct isis_circuit *circuit, + struct interface *ifp); +void isis_circuit_add_addr(struct isis_circuit *circuit, + struct connected *conn); +void isis_circuit_del_addr(struct isis_circuit *circuit, + struct connected *conn); +void isis_circuit_prepare(struct isis_circuit *circuit); +int isis_circuit_up(struct isis_circuit *circuit); +void isis_circuit_down(struct isis_circuit *); +void circuit_update_nlpids(struct isis_circuit *circuit); +void isis_circuit_print_vty(struct isis_circuit *circuit, struct vty *vty, + char detail); +void isis_circuit_print_json(struct isis_circuit *circuit, + struct json_object *json, char detail); +size_t isis_circuit_pdu_size(struct isis_circuit *circuit); +void isis_circuit_switchover_routes(struct isis_circuit *circuit, int family, + union g_addr *nexthop_ip, + ifindex_t ifindex); +void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream); + +void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router, + bool ipv6_router); +ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive); +void isis_circuit_is_type_set(struct isis_circuit *circuit, int is_type); +void isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type); + +ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level, + int metric); + +ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit); +ferr_r isis_circuit_passwd_set(struct isis_circuit *circuit, + uint8_t passwd_type, const char *passwd); +ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit, + const char *passwd); +ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit, + const char *passwd); + +int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid, + bool enabled); + +#ifdef FABRICD +DECLARE_HOOK(isis_circuit_config_write, + (struct isis_circuit *circuit, struct vty *vty), + (circuit, vty)); +#endif + +DECLARE_HOOK(isis_circuit_add_addr_hook, (struct isis_circuit *circuit), + (circuit)); + +DECLARE_HOOK(isis_circuit_new_hook, (struct isis_circuit *circuit), (circuit)); +DECLARE_HOOK(isis_circuit_del_hook, (struct isis_circuit *circuit), (circuit)); + +#endif /* _ZEBRA_ISIS_CIRCUIT_H */ |