Annotation of embedaddon/bird/conf/conf.h, revision 1.1.1.1
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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