| /* |
| * IS-IS Rout(e)ing protocol - isisd.h |
| * |
| * Copyright (C) 2001,2002 Sampo Saaristo |
| * Tampere University of Technology |
| * Institute of Communications Engineering |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public Licenseas published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful,but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #ifndef ISISD_H |
| #define ISISD_H |
| |
| #define ISISD_VERSION "0.0.7" |
| |
| #include "isisd/isis_constants.h" |
| #include "isisd/isis_common.h" |
| #include "isisd/isis_redist.h" |
| #include "isis_flags.h" |
| #include "dict.h" |
| |
| /* uncomment if you are a developer in bug hunt */ |
| /* #define EXTREME_DEBUG */ |
| /* #define EXTREME_TLV_DEBUG */ |
| |
| struct isis |
| { |
| u_long process_id; |
| int sysid_set; |
| u_char sysid[ISIS_SYS_ID_LEN]; /* SystemID for this IS */ |
| u_int32_t router_id; /* Router ID from zebra */ |
| struct list *area_list; /* list of IS-IS areas */ |
| struct list *init_circ_list; |
| struct list *nexthops; /* IPv4 next hops from this IS */ |
| #ifdef HAVE_IPV6 |
| struct list *nexthops6; /* IPv6 next hops from this IS */ |
| #endif /* HAVE_IPV6 */ |
| u_char max_area_addrs; /* maximumAreaAdresses */ |
| struct area_addr *man_area_addrs; /* manualAreaAddresses */ |
| u_int32_t debugs; /* bitmap for debug */ |
| time_t uptime; /* when did we start */ |
| struct thread *t_dync_clean; /* dynamic hostname cache cleanup thread */ |
| |
| struct route_table *ext_info[REDIST_PROTOCOL_COUNT]; |
| }; |
| |
| extern struct isis *isis; |
| |
| struct isis_area |
| { |
| struct isis *isis; /* back pointer */ |
| dict_t *lspdb[ISIS_LEVELS]; /* link-state dbs */ |
| struct isis_spftree *spftree[ISIS_LEVELS]; /* The v4 SPTs */ |
| struct route_table *route_table[ISIS_LEVELS]; /* IPv4 routes */ |
| #ifdef HAVE_IPV6 |
| struct isis_spftree *spftree6[ISIS_LEVELS]; /* The v6 SPTs */ |
| struct route_table *route_table6[ISIS_LEVELS]; /* IPv6 routes */ |
| #endif |
| #define DEFAULT_LSP_MTU 1497 |
| unsigned int lsp_mtu; /* Size of LSPs to generate */ |
| struct list *circuit_list; /* IS-IS circuits */ |
| struct flags flags; |
| struct thread *t_tick; /* LSP walker */ |
| struct thread *t_lsp_refresh[ISIS_LEVELS]; |
| /* t_lsp_refresh is used in two ways: |
| * a) regular refresh of LSPs |
| * b) (possibly throttled) updates to LSPs |
| * |
| * The lsp_regenerate_pending flag tracks whether the timer is active |
| * for the a) or the b) case. |
| * |
| * It is of utmost importance to clear this flag when the timer is |
| * rescheduled for normal refresh, because otherwise, updates will |
| * be delayed until the next regular refresh. |
| */ |
| int lsp_regenerate_pending[ISIS_LEVELS]; |
| |
| /* |
| * Configurables |
| */ |
| struct isis_passwd area_passwd; |
| struct isis_passwd domain_passwd; |
| /* do we support dynamic hostnames? */ |
| char dynhostname; |
| /* do we support new style metrics? */ |
| char newmetric; |
| char oldmetric; |
| /* identifies the routing instance */ |
| char *area_tag; |
| /* area addresses for this area */ |
| struct list *area_addrs; |
| u_int16_t max_lsp_lifetime[ISIS_LEVELS]; |
| char is_type; /* level-1 level-1-2 or level-2-only */ |
| /* are we overloaded? */ |
| char overload_bit; |
| /* L1/L2 router identifier for inter-area traffic */ |
| char attached_bit; |
| u_int16_t lsp_refresh[ISIS_LEVELS]; |
| /* minimum time allowed before lsp retransmission */ |
| u_int16_t lsp_gen_interval[ISIS_LEVELS]; |
| /* min interval between between consequtive SPFs */ |
| u_int16_t min_spf_interval[ISIS_LEVELS]; |
| /* the percentage of LSP mtu size used, before generating a new frag */ |
| int lsp_frag_threshold; |
| int ip_circuits; |
| /* logging adjacency changes? */ |
| u_char log_adj_changes; |
| #ifdef HAVE_IPV6 |
| int ipv6_circuits; |
| #endif /* HAVE_IPV6 */ |
| /* Counters */ |
| u_int32_t circuit_state_changes; |
| struct isis_redist redist_settings[REDIST_PROTOCOL_COUNT] |
| [ZEBRA_ROUTE_MAX + 1][ISIS_LEVELS]; |
| struct route_table *ext_reach[REDIST_PROTOCOL_COUNT][ISIS_LEVELS]; |
| |
| #ifdef TOPOLOGY_GENERATE |
| struct list *topology; |
| u_char topology_baseis[ISIS_SYS_ID_LEN]; /* IS for the first IS emulated. */ |
| char *topology_basedynh; /* Dynamic hostname base. */ |
| char top_params[200]; /* FIXME: what is reasonable? */ |
| #endif /* TOPOLOGY_GENERATE */ |
| }; |
| |
| void isis_init (void); |
| void isis_new(unsigned long); |
| struct isis_area *isis_area_create(const char *); |
| struct isis_area *isis_area_lookup (const char *); |
| int isis_area_get (struct vty *vty, const char *area_tag); |
| void print_debug(struct vty *, int, int); |
| |
| void isis_area_overload_bit_set(struct isis_area *area, bool overload_bit); |
| void isis_area_attached_bit_set(struct isis_area *area, bool attached_bit); |
| void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname); |
| void isis_area_metricstyle_set(struct isis_area *area, bool old_metric, |
| bool new_metric); |
| void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu); |
| void isis_area_is_type_set(struct isis_area *area, int is_type); |
| void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level, |
| uint16_t max_lsp_lifetime); |
| void isis_area_lsp_refresh_set(struct isis_area *area, int level, |
| uint16_t lsp_refresh); |
| /* IS_LEVEL_1 sets area_passwd, IS_LEVEL_2 domain_passwd */ |
| int isis_area_passwd_unset (struct isis_area *area, int level); |
| int isis_area_passwd_cleartext_set (struct isis_area *area, int level, |
| const char *passwd, u_char snp_auth); |
| int isis_area_passwd_hmac_md5_set (struct isis_area *area, int level, |
| const char *passwd, u_char snp_auth); |
| void isis_vty_init (void); |
| |
| /* Master of threads. */ |
| extern struct thread_master *master; |
| |
| #define DEBUG_ADJ_PACKETS (1<<0) |
| #define DEBUG_CHECKSUM_ERRORS (1<<1) |
| #define DEBUG_LOCAL_UPDATES (1<<2) |
| #define DEBUG_PROTOCOL_ERRORS (1<<3) |
| #define DEBUG_SNP_PACKETS (1<<4) |
| #define DEBUG_UPDATE_PACKETS (1<<5) |
| #define DEBUG_SPF_EVENTS (1<<6) |
| #define DEBUG_SPF_STATS (1<<7) |
| #define DEBUG_SPF_TRIGGERS (1<<8) |
| #define DEBUG_RTE_EVENTS (1<<9) |
| #define DEBUG_EVENTS (1<<10) |
| #define DEBUG_ZEBRA (1<<11) |
| #define DEBUG_PACKET_DUMP (1<<12) |
| #define DEBUG_LSP_GEN (1<<13) |
| #define DEBUG_LSP_SCHED (1<<14) |
| |
| #define lsp_debug(...) \ |
| do \ |
| { \ |
| if (isis->debugs & DEBUG_LSP_GEN) \ |
| zlog_debug(__VA_ARGS__); \ |
| } \ |
| while (0) |
| |
| #define sched_debug(...) \ |
| do \ |
| { \ |
| if (isis->debugs & DEBUG_LSP_SCHED) \ |
| zlog_debug(__VA_ARGS__); \ |
| } \ |
| while (0) |
| |
| #define DEBUG_TE (1<<13) |
| |
| #define IS_DEBUG_ISIS(x) (isis->debugs & x) |
| |
| #endif /* ISISD_H */ |