/* * BIRD Internet Routing Daemon -- Configuration File Handling * * (c) 1998--2000 Martin Mares * * Can be freely distributed and used under the terms of the GNU GPL. */ #ifndef _BIRD_CONF_H_ #define _BIRD_CONF_H_ #include "sysdep/config.h" #include "lib/ip.h" #include "lib/resource.h" #include "lib/timer.h" /* Configuration structures */ #define MRT_TABLE_NOT_CONFIGURED -1 #define MRT_TABLE_DEFAULT_PERIOD 60 #define MRT_TABLE_DEFAULT_FILENAME_FMT "%f_%F_%T.mrt" #define MRT_TABLE_DEFAULT_TABLENAME_PATTERN "*" struct mrt_table_common_config { u32 period; /* Time in seconds between Table Dump */ char *filename_fmt; struct filter *filter; struct cli *cli; /* Client console or NULL */ struct config *config; /* Configuration or NULL */ }; /* Template of configuration that can be apply at any table */ struct mrt_table_config { node n; /* Node in config->mrt_table_dumps */ struct mrt_table_common_config c; char *rtable_wildcard_name; }; /* Configuration that is specific per table */ struct mrt_table_individual_config { node n; /* Node in rtable_config->mrt_table_dumps */ struct mrt_table_common_config c; timer *timer; /* Timer for periodic dumps */ struct rtable_config *table_cf; bird_clock_t next_dump; }; struct config { pool *pool; /* Pool the configuration is stored in */ linpool *mem; /* Linear pool containing configuration data */ list protos; /* Configured protocol instances (struct proto_config) */ list tables; /* Configured routing tables (struct rtable_config) */ list roa_tables; /* Configured ROA tables (struct roa_table_config) */ list logfiles; /* Configured log files (sysdep) */ list mrt_table_dumps; /* Configured MRT table dumps (struct mrt_table_config) */ int mrt_proto_file; /* Configured MRTDump file (sysdep, fd in unix) for Protocols*/ char *syslog_name; /* Name used for syslog (NULL -> no syslog) */ struct rtable_config *master_rtc; /* Configuration of master routing table */ struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */ u32 router_id; /* Our Router ID */ ip_addr listen_bgp_addr; /* Listening BGP socket should use this address */ unsigned listen_bgp_port; /* Listening BGP socket should use this port (0 is default) */ u32 listen_bgp_flags; /* Listening BGP socket should use these flags */ unsigned proto_default_debug; /* Default protocol debug mask */ unsigned proto_default_mrtdump; /* Default protocol mrtdump mask */ struct timeformat tf_route; /* Time format for 'show route' */ struct timeformat tf_proto; /* Time format for 'show protocol' */ struct timeformat tf_log; /* Time format for the logfile */ struct timeformat tf_base; /* Time format for other purposes */ u32 gr_wait; /* Graceful restart wait timeout */ int cli_debug; /* Tracing of CLI connections and commands */ int latency_debug; /* I/O loop tracks duration of each event */ u32 latency_limit; /* Events with longer duration are logged (us) */ u32 watchdog_warning; /* I/O loop watchdog limit for warning (us) */ u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */ char *err_msg; /* Parser error message */ int err_lino; /* Line containing error */ char *err_file_name; /* File name containing error */ char *file_name; /* Name of main configuration file */ int file_fd; /* File descriptor of main configuration file */ struct symbol **sym_hash; /* Lexer: symbol hash table */ struct symbol **sym_fallback; /* Lexer: fallback symbol hash table */ int obstacle_count; /* Number of items blocking freeing of this config */ int shutdown; /* This is a pseudo-config for daemon shutdown */ bird_clock_t load_time; /* When we've got this configuration */ }; /* Please don't use these variables in protocols. Use proto_config->global instead. */ extern struct config *config; /* Currently active configuration */ extern struct config *new_config; /* Configuration being parsed */ struct config *config_alloc(byte *name); int config_parse(struct config *); int cli_parse(struct config *); void config_free(struct config *); int config_commit(struct config *, int type, int timeout); int config_confirm(void); int config_undo(void); void config_init(void); void cf_error(char *msg, ...) NORET; void config_add_obstacle(struct config *); void config_del_obstacle(struct config *); void order_shutdown(void); #define RECONFIG_NONE 0 #define RECONFIG_HARD 1 #define RECONFIG_SOFT 2 #define RECONFIG_UNDO 3 #define CONF_DONE 0 #define CONF_PROGRESS 1 #define CONF_QUEUED 2 #define CONF_UNQUEUED 3 #define CONF_CONFIRM 4 #define CONF_SHUTDOWN -1 #define CONF_NOTHING -2 /* Pools */ extern linpool *cfg_mem; #define cfg_alloc(size) lp_alloc(cfg_mem, size) #define cfg_allocu(size) lp_allocu(cfg_mem, size) #define cfg_allocz(size) lp_allocz(cfg_mem, size) char *cfg_strdup(char *c); void cfg_copy_list(list *dest, list *src, unsigned node_size); /* Lexer */ extern int (*cf_read_hook)(byte *buf, uint max, int fd); struct symbol { struct symbol *next; struct sym_scope *scope; int class; int aux; void *aux2; void *def; char name[1]; }; #define SYM_MAX_LEN 64 /* Remember to update cf_symbol_class_name() */ #define SYM_VOID 0 #define SYM_PROTO 1 #define SYM_TEMPLATE 2 #define SYM_FUNCTION 3 #define SYM_FILTER 4 #define SYM_TABLE 5 #define SYM_ROA 6 #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */ #define SYM_CONSTANT 0x200 /* 0x200-0x2ff are variable types */ #define SYM_TYPE(s) (((struct f_val *) (s)->def)->type) #define SYM_VAL(s) (((struct f_val *) (s)->def)->val) struct include_file_stack { void *buffer; /* Internal lexer state */ char *file_name; /* File name */ int fd; /* File descriptor */ int lino; /* Current line num */ int depth; /* Include depth, 0 = cannot include */ struct include_file_stack *prev; /* Previous record in stack */ struct include_file_stack *up; /* Parent (who included this file) */ }; extern struct include_file_stack *ifs; int cf_lex(void); void cf_lex_init(int is_cli, struct config *c); void cf_lex_unwind(void); struct symbol *cf_find_symbol(struct config *cfg, byte *c); struct symbol *cf_get_symbol(byte *c); struct symbol *cf_default_name(char *template, int *counter); struct symbol *cf_define_symbol(struct symbol *symbol, int type, void *def); void cf_push_scope(struct symbol *); void cf_pop_scope(void); struct symbol *cf_walk_symbols(struct config *cf, struct symbol *sym, int *pos); char *cf_symbol_class_name(struct symbol *sym); static inline int cf_symbol_is_constant(struct symbol *sym) { return (sym->class & 0xff00) == SYM_CONSTANT; } /* Parser */ int cf_parse(void); /* Sysdep hooks */ void sysdep_preconfig(struct config *); int sysdep_commit(struct config *, struct config *); void sysdep_shutdown_done(void); #endif