/* * BIRD Internet Routing Daemon -- Configuration File Handling * * (c) 1998--2000 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ #ifndef _BIRD_CONF_H_ #define _BIRD_CONF_H_ #include "lib/resource.h" #include "lib/timer.h" /* Configuration structure */ 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 fils (sysdep) */ int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */ 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 */ int cli_debug; /* Tracing of CLI connections and commands */ 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, unsigned int max, int fd); struct symbol { struct symbol *next; struct sym_scope *scope; int class; int aux; void *aux2; void *def; char name[1]; }; /* Remember to update cf_symbol_class_name() */ #define SYM_VOID 0 #define SYM_PROTO 1 #define SYM_NUMBER 2 #define SYM_FUNCTION 3 #define SYM_FILTER 4 #define SYM_TABLE 5 #define SYM_IPA 6 #define SYM_TEMPLATE 7 #define SYM_ROA 8 #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */ 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); struct symbol *cf_find_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); /* 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