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/*
* 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"
/* 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 logfiles; /* Configured log fils (sysdep) */
struct rtable_config *master_rtc; /* Configuration of master routing table */
u32 router_id; /* Our Router ID */
char *err_msg; /* Parser error message */
int err_lino; /* Line containing error */
char *file_name; /* Name of 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 */
};
/* 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 */
extern struct config *old_config; /* Old configuration when reconfiguration is in progress */
extern struct config *future_config; /* New config held here if recon requested during recon */
extern int shutting_down;
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 *);
void cf_error(char *msg, ...) NORET;
void config_add_obstacle(struct config *);
void config_del_obstacle(struct config *);
void order_shutdown(void);
#define CONF_DONE 0
#define CONF_PROGRESS 1
#define CONF_QUEUED 2
#define CONF_SHUTDOWN 3
/* 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);
/* Lexer */
extern int (*cf_read_hook)(byte *buf, unsigned int max);
struct symbol {
struct symbol *next;
struct sym_scope *scope;
int class;
int aux;
void *aux2;
void *def;
char name[1];
};
#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_VARIABLE 0x100 /* 0x100-0x1ff are variable types */
extern int conf_lino;
int cf_lex(void);
void cf_lex_init(int is_cli);
struct symbol *cf_find_symbol(byte *c);
struct symbol *cf_default_name(char *template, int *counter);
void 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
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