Annotation of embedaddon/bird/conf/conf.h, revision 1.1.1.2
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"
1.1.1.2 ! misho 14: #include "lib/hash.h"
1.1 misho 15:
16:
17: /* Configuration structure */
18:
19: struct config {
20: pool *pool; /* Pool the configuration is stored in */
21: linpool *mem; /* Linear pool containing configuration data */
22: list protos; /* Configured protocol instances (struct proto_config) */
23: list tables; /* Configured routing tables (struct rtable_config) */
24: list roa_tables; /* Configured ROA tables (struct roa_table_config) */
25: list logfiles; /* Configured log files (sysdep) */
26:
27: int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */
28: char *syslog_name; /* Name used for syslog (NULL -> no syslog) */
29: struct rtable_config *master_rtc; /* Configuration of master routing table */
30: struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */
31:
32: u32 router_id; /* Our Router ID */
33: ip_addr listen_bgp_addr; /* Listening BGP socket should use this address */
34: unsigned listen_bgp_port; /* Listening BGP socket should use this port (0 is default) */
35: u32 listen_bgp_flags; /* Listening BGP socket should use these flags */
36: unsigned proto_default_debug; /* Default protocol debug mask */
37: unsigned proto_default_mrtdump; /* Default protocol mrtdump mask */
38: struct timeformat tf_route; /* Time format for 'show route' */
39: struct timeformat tf_proto; /* Time format for 'show protocol' */
40: struct timeformat tf_log; /* Time format for the logfile */
41: struct timeformat tf_base; /* Time format for other purposes */
42: u32 gr_wait; /* Graceful restart wait timeout */
43:
44: int cli_debug; /* Tracing of CLI connections and commands */
45: int latency_debug; /* I/O loop tracks duration of each event */
46: u32 latency_limit; /* Events with longer duration are logged (us) */
47: u32 watchdog_warning; /* I/O loop watchdog limit for warning (us) */
48: u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */
49: char *err_msg; /* Parser error message */
50: int err_lino; /* Line containing error */
1.1.1.2 ! misho 51: int err_chno; /* Character where the parser stopped */
1.1 misho 52: char *err_file_name; /* File name containing error */
53: char *file_name; /* Name of main configuration file */
54: int file_fd; /* File descriptor of main configuration file */
1.1.1.2 ! misho 55: HASH(struct symbol) sym_hash; /* Lexer: symbol hash table */
! 56: struct config *fallback; /* Link to regular config for CLI parsing */
1.1 misho 57: int obstacle_count; /* Number of items blocking freeing of this config */
58: int shutdown; /* This is a pseudo-config for daemon shutdown */
59: bird_clock_t load_time; /* When we've got this configuration */
60: };
61:
62: /* Please don't use these variables in protocols. Use proto_config->global instead. */
63: extern struct config *config; /* Currently active configuration */
64: extern struct config *new_config; /* Configuration being parsed */
65:
66: struct config *config_alloc(const byte *name);
67: int config_parse(struct config *);
68: int cli_parse(struct config *);
69: void config_free(struct config *);
70: int config_commit(struct config *, int type, int timeout);
71: int config_confirm(void);
72: int config_undo(void);
73: void config_init(void);
74: void cf_error(char *msg, ...) NORET;
75: void config_add_obstacle(struct config *);
76: void config_del_obstacle(struct config *);
77: void order_shutdown(void);
78:
79: #define RECONFIG_NONE 0
80: #define RECONFIG_HARD 1
81: #define RECONFIG_SOFT 2
82: #define RECONFIG_UNDO 3
83:
84: #define CONF_DONE 0
85: #define CONF_PROGRESS 1
86: #define CONF_QUEUED 2
87: #define CONF_UNQUEUED 3
88: #define CONF_CONFIRM 4
89: #define CONF_SHUTDOWN -1
90: #define CONF_NOTHING -2
91:
92:
93: /* Pools */
94:
95: extern linpool *cfg_mem;
96:
97: #define cfg_alloc(size) lp_alloc(cfg_mem, size)
98: #define cfg_allocu(size) lp_allocu(cfg_mem, size)
99: #define cfg_allocz(size) lp_allocz(cfg_mem, size)
100: char *cfg_strdup(const char *c);
101: void cfg_copy_list(list *dest, list *src, unsigned node_size);
102:
103: /* Lexer */
104:
105: extern int (*cf_read_hook)(byte *buf, uint max, int fd);
106:
107: struct symbol {
108: struct symbol *next;
109: struct sym_scope *scope;
110: int class;
111: int aux;
112: void *aux2;
113: void *def;
114: char name[1];
115: };
116:
1.1.1.2 ! misho 117: struct sym_scope {
! 118: struct sym_scope *next; /* Next on scope stack */
! 119: struct symbol *name; /* Name of this scope */
! 120: int active; /* Currently entered */
! 121: };
! 122:
1.1 misho 123: #define SYM_MAX_LEN 64
124:
125: /* Remember to update cf_symbol_class_name() */
126: #define SYM_VOID 0
127: #define SYM_PROTO 1
128: #define SYM_TEMPLATE 2
129: #define SYM_FUNCTION 3
130: #define SYM_FILTER 4
131: #define SYM_TABLE 5
132: #define SYM_ROA 6
133:
134: #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */
135: #define SYM_CONSTANT 0x200 /* 0x200-0x2ff are variable types */
136:
137: #define SYM_TYPE(s) (((struct f_val *) (s)->def)->type)
138: #define SYM_VAL(s) (((struct f_val *) (s)->def)->val)
139:
140: struct include_file_stack {
141: void *buffer; /* Internal lexer state */
142: char *file_name; /* File name */
143: int fd; /* File descriptor */
144: int lino; /* Current line num */
1.1.1.2 ! misho 145: int chno; /* Current char num (on current line) */
! 146: int toklen; /* Current token length */
1.1 misho 147: int depth; /* Include depth, 0 = cannot include */
148:
149: struct include_file_stack *prev; /* Previous record in stack */
150: struct include_file_stack *up; /* Parent (who included this file) */
151: };
152:
153: extern struct include_file_stack *ifs;
154:
155: int cf_lex(void);
156: void cf_lex_init(int is_cli, struct config *c);
157: void cf_lex_unwind(void);
158:
159: struct symbol *cf_find_symbol(struct config *cfg, byte *c);
160:
161: struct symbol *cf_get_symbol(byte *c);
162: struct symbol *cf_default_name(char *template, int *counter);
163: struct symbol *cf_define_symbol(struct symbol *symbol, int type, void *def);
164: void cf_push_scope(struct symbol *);
165: void cf_pop_scope(void);
166: char *cf_symbol_class_name(struct symbol *sym);
167:
168: static inline int cf_symbol_is_constant(struct symbol *sym)
169: { return (sym->class & 0xff00) == SYM_CONSTANT; }
170:
171:
172: /* Parser */
173:
174: int cf_parse(void);
175:
176: /* Sysdep hooks */
177:
178: void sysdep_preconfig(struct config *);
179: int sysdep_commit(struct config *, struct config *);
180: void sysdep_shutdown_done(void);
181:
182: #endif
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