Annotation of embedaddon/bird/conf/conf.h, revision 1.1
1.1 ! misho 1: /*
! 2: * BIRD Internet Routing Daemon -- Configuration File Handling
! 3: *
! 4: * (c) 1998--2000 Martin Mares <mj@ucw.cz>
! 5: *
! 6: * Can be freely distributed and used under the terms of the GNU GPL.
! 7: */
! 8:
! 9: #ifndef _BIRD_CONF_H_
! 10: #define _BIRD_CONF_H_
! 11:
! 12: #include "lib/resource.h"
! 13: #include "lib/timer.h"
! 14:
! 15:
! 16: /* Configuration structure */
! 17:
! 18: struct config {
! 19: pool *pool; /* Pool the configuration is stored in */
! 20: linpool *mem; /* Linear pool containing configuration data */
! 21: list protos; /* Configured protocol instances (struct proto_config) */
! 22: list tables; /* Configured routing tables (struct rtable_config) */
! 23: list roa_tables; /* Configured ROA tables (struct roa_table_config) */
! 24: list logfiles; /* Configured log files (sysdep) */
! 25:
! 26: int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */
! 27: char *syslog_name; /* Name used for syslog (NULL -> no syslog) */
! 28: struct rtable_config *master_rtc; /* Configuration of master routing table */
! 29: struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */
! 30:
! 31: u32 router_id; /* Our Router ID */
! 32: ip_addr listen_bgp_addr; /* Listening BGP socket should use this address */
! 33: unsigned listen_bgp_port; /* Listening BGP socket should use this port (0 is default) */
! 34: u32 listen_bgp_flags; /* Listening BGP socket should use these flags */
! 35: unsigned proto_default_debug; /* Default protocol debug mask */
! 36: unsigned proto_default_mrtdump; /* Default protocol mrtdump mask */
! 37: struct timeformat tf_route; /* Time format for 'show route' */
! 38: struct timeformat tf_proto; /* Time format for 'show protocol' */
! 39: struct timeformat tf_log; /* Time format for the logfile */
! 40: struct timeformat tf_base; /* Time format for other purposes */
! 41: u32 gr_wait; /* Graceful restart wait timeout */
! 42:
! 43: int cli_debug; /* Tracing of CLI connections and commands */
! 44: int latency_debug; /* I/O loop tracks duration of each event */
! 45: u32 latency_limit; /* Events with longer duration are logged (us) */
! 46: u32 watchdog_warning; /* I/O loop watchdog limit for warning (us) */
! 47: u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */
! 48: char *err_msg; /* Parser error message */
! 49: int err_lino; /* Line containing error */
! 50: char *err_file_name; /* File name containing error */
! 51: char *file_name; /* Name of main configuration file */
! 52: int file_fd; /* File descriptor of main configuration file */
! 53: struct symbol **sym_hash; /* Lexer: symbol hash table */
! 54: struct symbol **sym_fallback; /* Lexer: fallback symbol hash table */
! 55: int obstacle_count; /* Number of items blocking freeing of this config */
! 56: int shutdown; /* This is a pseudo-config for daemon shutdown */
! 57: bird_clock_t load_time; /* When we've got this configuration */
! 58: };
! 59:
! 60: /* Please don't use these variables in protocols. Use proto_config->global instead. */
! 61: extern struct config *config; /* Currently active configuration */
! 62: extern struct config *new_config; /* Configuration being parsed */
! 63:
! 64: struct config *config_alloc(const byte *name);
! 65: int config_parse(struct config *);
! 66: int cli_parse(struct config *);
! 67: void config_free(struct config *);
! 68: int config_commit(struct config *, int type, int timeout);
! 69: int config_confirm(void);
! 70: int config_undo(void);
! 71: void config_init(void);
! 72: void cf_error(char *msg, ...) NORET;
! 73: void config_add_obstacle(struct config *);
! 74: void config_del_obstacle(struct config *);
! 75: void order_shutdown(void);
! 76:
! 77: #define RECONFIG_NONE 0
! 78: #define RECONFIG_HARD 1
! 79: #define RECONFIG_SOFT 2
! 80: #define RECONFIG_UNDO 3
! 81:
! 82: #define CONF_DONE 0
! 83: #define CONF_PROGRESS 1
! 84: #define CONF_QUEUED 2
! 85: #define CONF_UNQUEUED 3
! 86: #define CONF_CONFIRM 4
! 87: #define CONF_SHUTDOWN -1
! 88: #define CONF_NOTHING -2
! 89:
! 90:
! 91: /* Pools */
! 92:
! 93: extern linpool *cfg_mem;
! 94:
! 95: #define cfg_alloc(size) lp_alloc(cfg_mem, size)
! 96: #define cfg_allocu(size) lp_allocu(cfg_mem, size)
! 97: #define cfg_allocz(size) lp_allocz(cfg_mem, size)
! 98: char *cfg_strdup(const char *c);
! 99: void cfg_copy_list(list *dest, list *src, unsigned node_size);
! 100:
! 101: /* Lexer */
! 102:
! 103: extern int (*cf_read_hook)(byte *buf, uint max, int fd);
! 104:
! 105: struct symbol {
! 106: struct symbol *next;
! 107: struct sym_scope *scope;
! 108: int class;
! 109: int aux;
! 110: void *aux2;
! 111: void *def;
! 112: char name[1];
! 113: };
! 114:
! 115: #define SYM_MAX_LEN 64
! 116:
! 117: /* Remember to update cf_symbol_class_name() */
! 118: #define SYM_VOID 0
! 119: #define SYM_PROTO 1
! 120: #define SYM_TEMPLATE 2
! 121: #define SYM_FUNCTION 3
! 122: #define SYM_FILTER 4
! 123: #define SYM_TABLE 5
! 124: #define SYM_ROA 6
! 125:
! 126: #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */
! 127: #define SYM_CONSTANT 0x200 /* 0x200-0x2ff are variable types */
! 128:
! 129: #define SYM_TYPE(s) (((struct f_val *) (s)->def)->type)
! 130: #define SYM_VAL(s) (((struct f_val *) (s)->def)->val)
! 131:
! 132: struct include_file_stack {
! 133: void *buffer; /* Internal lexer state */
! 134: char *file_name; /* File name */
! 135: int fd; /* File descriptor */
! 136: int lino; /* Current line num */
! 137: int depth; /* Include depth, 0 = cannot include */
! 138:
! 139: struct include_file_stack *prev; /* Previous record in stack */
! 140: struct include_file_stack *up; /* Parent (who included this file) */
! 141: };
! 142:
! 143: extern struct include_file_stack *ifs;
! 144:
! 145:
! 146: int cf_lex(void);
! 147: void cf_lex_init(int is_cli, struct config *c);
! 148: void cf_lex_unwind(void);
! 149:
! 150: struct symbol *cf_find_symbol(struct config *cfg, byte *c);
! 151:
! 152: struct symbol *cf_get_symbol(byte *c);
! 153: struct symbol *cf_default_name(char *template, int *counter);
! 154: struct symbol *cf_define_symbol(struct symbol *symbol, int type, void *def);
! 155: void cf_push_scope(struct symbol *);
! 156: void cf_pop_scope(void);
! 157: struct symbol *cf_walk_symbols(struct config *cf, struct symbol *sym, int *pos);
! 158: char *cf_symbol_class_name(struct symbol *sym);
! 159:
! 160: static inline int cf_symbol_is_constant(struct symbol *sym)
! 161: { return (sym->class & 0xff00) == SYM_CONSTANT; }
! 162:
! 163:
! 164: /* Parser */
! 165:
! 166: int cf_parse(void);
! 167:
! 168: /* Sysdep hooks */
! 169:
! 170: void sysdep_preconfig(struct config *);
! 171: int sysdep_commit(struct config *, struct config *);
! 172: void sysdep_shutdown_done(void);
! 173:
! 174: #endif
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