Annotation of embedaddon/bird2/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 "sysdep/config.h"
! 13: #include "lib/ip.h"
! 14: #include "lib/hash.h"
! 15: #include "lib/resource.h"
! 16: #include "lib/timer.h"
! 17:
! 18: /* Configuration structure */
! 19:
! 20: struct config {
! 21: pool *pool; /* Pool the configuration is stored in */
! 22: linpool *mem; /* Linear pool containing configuration data */
! 23: list protos; /* Configured protocol instances (struct proto_config) */
! 24: list tables; /* Configured routing tables (struct rtable_config) */
! 25: list logfiles; /* Configured log files (sysdep) */
! 26: list tests; /* Configured unit tests (f_bt_test_suite) */
! 27: list symbols; /* Configured symbols in config order */
! 28:
! 29: int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */
! 30: char *syslog_name; /* Name used for syslog (NULL -> no syslog) */
! 31: struct rtable_config *def_tables[NET_MAX]; /* Default routing tables for each network */
! 32: struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */
! 33:
! 34: u32 router_id; /* Our Router ID */
! 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 (sec) */
! 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: int err_chno; /* Character where the parser stopped */
! 51: char *err_file_name; /* File name containing error */
! 52: char *file_name; /* Name of main configuration file */
! 53: int file_fd; /* File descriptor of main configuration file */
! 54: HASH(struct symbol) sym_hash; /* Lexer: symbol hash table */
! 55: struct config *fallback; /* Link to regular config for CLI parsing */
! 56: struct sym_scope *root_scope; /* Scope for root symbols */
! 57: int obstacle_count; /* Number of items blocking freeing of this config */
! 58: int shutdown; /* This is a pseudo-config for daemon shutdown */
! 59: int gr_down; /* This is a pseudo-config for graceful restart */
! 60: btime load_time; /* When we've got this configuration */
! 61: };
! 62:
! 63: /* Please don't use these variables in protocols. Use proto_config->global instead. */
! 64: extern struct config *config; /* Currently active configuration */
! 65: extern struct config *new_config; /* Configuration being parsed */
! 66:
! 67: struct config *config_alloc(const char *name);
! 68: int config_parse(struct config *);
! 69: int cli_parse(struct config *);
! 70: void config_free(struct config *);
! 71: int config_commit(struct config *, int type, uint timeout);
! 72: int config_confirm(void);
! 73: int config_undo(void);
! 74: int config_status(void);
! 75: btime config_timer_status(void);
! 76: void config_init(void);
! 77: void cf_error(const char *msg, ...) NORET;
! 78: void config_add_obstacle(struct config *);
! 79: void config_del_obstacle(struct config *);
! 80: void order_shutdown(int gr);
! 81:
! 82: #define RECONFIG_NONE 0
! 83: #define RECONFIG_HARD 1
! 84: #define RECONFIG_SOFT 2
! 85: #define RECONFIG_UNDO 3
! 86:
! 87: #define CONF_DONE 0
! 88: #define CONF_PROGRESS 1
! 89: #define CONF_QUEUED 2
! 90: #define CONF_UNQUEUED 3
! 91: #define CONF_CONFIRM 4
! 92: #define CONF_SHUTDOWN -1
! 93: #define CONF_NOTHING -2
! 94:
! 95:
! 96: /* Pools */
! 97:
! 98: extern linpool *cfg_mem;
! 99:
! 100: #define cfg_alloc(size) lp_alloc(cfg_mem, size)
! 101: #define cfg_allocu(size) lp_allocu(cfg_mem, size)
! 102: #define cfg_allocz(size) lp_allocz(cfg_mem, size)
! 103: char *cfg_strdup(const char *c);
! 104: void cfg_copy_list(list *dest, list *src, unsigned node_size);
! 105:
! 106: /* Lexer */
! 107:
! 108: extern int (*cf_read_hook)(byte *buf, uint max, int fd);
! 109:
! 110: struct symbol {
! 111: node n; /* In list of symbols in config */
! 112: struct symbol *next;
! 113: struct sym_scope *scope;
! 114: int class; /* SYM_* */
! 115: uint flags; /* SYM_FLAG_* */
! 116:
! 117: union {
! 118: struct proto_config *proto; /* For SYM_PROTO and SYM_TEMPLATE */
! 119: const struct f_line *function; /* For SYM_FUNCTION */
! 120: const struct filter *filter; /* For SYM_FILTER */
! 121: struct rtable_config *table; /* For SYM_TABLE */
! 122: struct f_dynamic_attr *attribute; /* For SYM_ATTRIBUTE */
! 123: struct f_val *val; /* For SYM_CONSTANT */
! 124: uint offset; /* For SYM_VARIABLE */
! 125: };
! 126:
! 127: char name[0];
! 128: };
! 129:
! 130: struct sym_scope {
! 131: struct sym_scope *next; /* Next on scope stack */
! 132: struct symbol *name; /* Name of this scope */
! 133: uint slots; /* Variable slots */
! 134: int active; /* Currently entered */
! 135: };
! 136:
! 137: #define SYM_MAX_LEN 64
! 138:
! 139: /* Remember to update cf_symbol_class_name() */
! 140: #define SYM_VOID 0
! 141: #define SYM_PROTO 1
! 142: #define SYM_TEMPLATE 2
! 143: #define SYM_FUNCTION 3
! 144: #define SYM_FILTER 4
! 145: #define SYM_TABLE 5
! 146: #define SYM_ATTRIBUTE 6
! 147:
! 148: #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */
! 149: #define SYM_VARIABLE_RANGE SYM_VARIABLE ... (SYM_VARIABLE | 0xff)
! 150: #define SYM_CONSTANT 0x200 /* 0x200-0x2ff are variable types */
! 151: #define SYM_CONSTANT_RANGE SYM_CONSTANT ... (SYM_CONSTANT | 0xff)
! 152:
! 153: #define SYM_TYPE(s) ((s)->val->type)
! 154: #define SYM_VAL(s) ((s)->val->val)
! 155:
! 156: /* Symbol flags */
! 157: #define SYM_FLAG_SAME 0x1 /* For SYM_FUNCTION and SYM_FILTER */
! 158:
! 159: struct include_file_stack {
! 160: void *buffer; /* Internal lexer state */
! 161: char *file_name; /* File name */
! 162: int fd; /* File descriptor */
! 163: int lino; /* Current line num */
! 164: int chno; /* Current char num (on current line) */
! 165: int toklen; /* Current token length */
! 166: int depth; /* Include depth, 0 = cannot include */
! 167:
! 168: struct include_file_stack *prev; /* Previous record in stack */
! 169: struct include_file_stack *up; /* Parent (who included this file) */
! 170: };
! 171:
! 172: extern struct include_file_stack *ifs;
! 173:
! 174: extern struct sym_scope *conf_this_scope;
! 175:
! 176: int cf_lex(void);
! 177: void cf_lex_init(int is_cli, struct config *c);
! 178: void cf_lex_unwind(void);
! 179:
! 180: struct symbol *cf_find_symbol(const struct config *cfg, const byte *c);
! 181:
! 182: struct symbol *cf_get_symbol(const byte *c);
! 183: struct symbol *cf_default_name(char *template, int *counter);
! 184: struct symbol *cf_localize_symbol(struct symbol *sym);
! 185:
! 186: /**
! 187: * cf_define_symbol - define meaning of a symbol
! 188: * @sym: symbol to be defined
! 189: * @type: symbol class to assign
! 190: * @def: class dependent data
! 191: *
! 192: * Defines new meaning of a symbol. If the symbol is an undefined
! 193: * one (%SYM_VOID), it's just re-defined to the new type. If it's defined
! 194: * in different scope, a new symbol in current scope is created and the
! 195: * meaning is assigned to it. If it's already defined in the current scope,
! 196: * an error is reported via cf_error().
! 197: *
! 198: * Result: Pointer to the newly defined symbol. If we are in the top-level
! 199: * scope, it's the same @sym as passed to the function.
! 200: */
! 201: #define cf_define_symbol(sym_, type_, var_, def_) ({ \
! 202: struct symbol *sym = cf_localize_symbol(sym_); \
! 203: sym->class = type_; \
! 204: sym->var_ = def_; \
! 205: sym; })
! 206:
! 207: void cf_push_scope(struct symbol *);
! 208: void cf_pop_scope(void);
! 209: char *cf_symbol_class_name(struct symbol *sym);
! 210:
! 211: /* Parser */
! 212:
! 213: extern char *cf_text;
! 214: int cf_parse(void);
! 215:
! 216: /* Sysdep hooks */
! 217:
! 218: void sysdep_preconfig(struct config *);
! 219: int sysdep_commit(struct config *, struct config *);
! 220: void sysdep_shutdown_done(void);
! 221:
! 222: #endif
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to conf.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / bird2 / conf