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Commit | Line | Data |
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fe7cec12 MM |
1 | /* |
2 | * BIRD Internet Routing Daemon -- Configuration File Handling | |
3 | * | |
50fe90ed | 4 | * (c) 1998--2000 Martin Mares <mj@ucw.cz> |
fe7cec12 MM |
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 | ||
9b0a0ba9 OZ |
12 | #include "sysdep/config.h" |
13 | #include "lib/ip.h" | |
b7761af3 | 14 | #include "lib/hash.h" |
fe7cec12 | 15 | #include "lib/resource.h" |
a6f79ca5 | 16 | #include "lib/timer.h" |
fe7cec12 | 17 | |
31b3e1bb MM |
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) */ | |
4107df1d | 24 | list tables; /* Configured routing tables (struct rtable_config) */ |
c8cafc8e | 25 | list logfiles; /* Configured log files (sysdep) */ |
bd795877 | 26 | list tests; /* Configured unit tests (f_bt_test_suite) */ |
af582c48 | 27 | |
cf31112f | 28 | int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */ |
44d4ab7a | 29 | char *syslog_name; /* Name used for syslog (NULL -> no syslog) */ |
f4a60a9b | 30 | struct rtable_config *def_tables[NET_MAX]; /* Default routing tables for each network */ |
79b4e12e | 31 | struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */ |
cf31112f | 32 | |
31b3e1bb | 33 | u32 router_id; /* Our Router ID */ |
cf31112f OZ |
34 | unsigned proto_default_debug; /* Default protocol debug mask */ |
35 | unsigned proto_default_mrtdump; /* Default protocol mrtdump mask */ | |
c37e7851 OZ |
36 | struct timeformat tf_route; /* Time format for 'show route' */ |
37 | struct timeformat tf_proto; /* Time format for 'show protocol' */ | |
38 | struct timeformat tf_log; /* Time format for the logfile */ | |
39 | struct timeformat tf_base; /* Time format for other purposes */ | |
3e405fb1 | 40 | u32 gr_wait; /* Graceful restart wait timeout (sec) */ |
c37e7851 | 41 | |
4761efdb | 42 | int cli_debug; /* Tracing of CLI connections and commands */ |
8bcb5fb1 OZ |
43 | int latency_debug; /* I/O loop tracks duration of each event */ |
44 | u32 latency_limit; /* Events with longer duration are logged (us) */ | |
45 | u32 watchdog_warning; /* I/O loop watchdog limit for warning (us) */ | |
46 | u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */ | |
31b3e1bb MM |
47 | char *err_msg; /* Parser error message */ |
48 | int err_lino; /* Line containing error */ | |
d50b0bc4 | 49 | int err_chno; /* Character where the parser stopped */ |
48ec367a OF |
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 */ | |
b7761af3 OZ |
53 | HASH(struct symbol) sym_hash; /* Lexer: symbol hash table */ |
54 | struct config *fallback; /* Link to regular config for CLI parsing */ | |
e0835db4 | 55 | struct sym_scope *root_scope; /* Scope for root symbols */ |
50fe90ed | 56 | int obstacle_count; /* Number of items blocking freeing of this config */ |
bf8558bc | 57 | int shutdown; /* This is a pseudo-config for daemon shutdown */ |
f047271c | 58 | btime load_time; /* When we've got this configuration */ |
31b3e1bb MM |
59 | }; |
60 | ||
31b3e1bb | 61 | /* Please don't use these variables in protocols. Use proto_config->global instead. */ |
50fe90ed MM |
62 | extern struct config *config; /* Currently active configuration */ |
63 | extern struct config *new_config; /* Configuration being parsed */ | |
bf8558bc | 64 | |
9b0a0ba9 | 65 | struct config *config_alloc(const char *name); |
31b3e1bb | 66 | int config_parse(struct config *); |
bc2fb680 | 67 | int cli_parse(struct config *); |
31b3e1bb | 68 | void config_free(struct config *); |
3e405fb1 | 69 | int config_commit(struct config *, int type, uint timeout); |
a92cf57d OZ |
70 | int config_confirm(void); |
71 | int config_undo(void); | |
9106a750 OZ |
72 | int config_status(void); |
73 | btime config_timer_status(void); | |
a92cf57d | 74 | void config_init(void); |
1a7daab1 | 75 | void cf_error(const char *msg, ...) NORET; |
50fe90ed MM |
76 | void config_add_obstacle(struct config *); |
77 | void config_del_obstacle(struct config *); | |
bf8558bc | 78 | void order_shutdown(void); |
50fe90ed | 79 | |
a92cf57d OZ |
80 | #define RECONFIG_NONE 0 |
81 | #define RECONFIG_HARD 1 | |
82 | #define RECONFIG_SOFT 2 | |
83 | #define RECONFIG_UNDO 3 | |
84 | ||
85 | #define CONF_DONE 0 | |
86 | #define CONF_PROGRESS 1 | |
87 | #define CONF_QUEUED 2 | |
88 | #define CONF_UNQUEUED 3 | |
89 | #define CONF_CONFIRM 4 | |
90 | #define CONF_SHUTDOWN -1 | |
91 | #define CONF_NOTHING -2 | |
92 | ||
31b3e1bb | 93 | |
49e4a4d1 MM |
94 | /* Pools */ |
95 | ||
b35d72ac | 96 | extern linpool *cfg_mem; |
fe7cec12 | 97 | |
b35d72ac MM |
98 | #define cfg_alloc(size) lp_alloc(cfg_mem, size) |
99 | #define cfg_allocu(size) lp_allocu(cfg_mem, size) | |
100 | #define cfg_allocz(size) lp_allocz(cfg_mem, size) | |
c8cafc8e | 101 | char *cfg_strdup(const char *c); |
a7f23f58 | 102 | void cfg_copy_list(list *dest, list *src, unsigned node_size); |
49e4a4d1 | 103 | |
fe7cec12 MM |
104 | /* Lexer */ |
105 | ||
ae80a2de | 106 | extern int (*cf_read_hook)(byte *buf, uint max, int fd); |
fe7cec12 MM |
107 | |
108 | struct symbol { | |
109 | struct symbol *next; | |
c8f61a01 | 110 | struct sym_scope *scope; |
fe7cec12 | 111 | int class; |
0b62c3a7 | 112 | int aux; |
083c43e2 | 113 | void *aux2; |
fe7cec12 MM |
114 | void *def; |
115 | char name[1]; | |
116 | }; | |
117 | ||
b7761af3 OZ |
118 | struct sym_scope { |
119 | struct sym_scope *next; /* Next on scope stack */ | |
120 | struct symbol *name; /* Name of this scope */ | |
121 | int active; /* Currently entered */ | |
122 | }; | |
123 | ||
bc7f4e0e OZ |
124 | #define SYM_MAX_LEN 64 |
125 | ||
c0b2f646 | 126 | /* Remember to update cf_symbol_class_name() */ |
fe7cec12 | 127 | #define SYM_VOID 0 |
8450be97 | 128 | #define SYM_PROTO 1 |
1103b32e | 129 | #define SYM_TEMPLATE 2 |
cbc31830 MM |
130 | #define SYM_FUNCTION 3 |
131 | #define SYM_FILTER 4 | |
132 | #define SYM_TABLE 5 | |
265419a3 | 133 | #define SYM_ATTRIBUTE 6 |
fe7cec12 | 134 | |
cbc31830 | 135 | #define SYM_VARIABLE 0x100 /* 0x100-0x1ff are variable types */ |
265419a3 | 136 | #define SYM_VARIABLE_RANGE SYM_VARIABLE ... (SYM_VARIABLE | 0xff) |
1103b32e | 137 | #define SYM_CONSTANT 0x200 /* 0x200-0x2ff are variable types */ |
265419a3 | 138 | #define SYM_CONSTANT_RANGE SYM_CONSTANT ... (SYM_CONSTANT | 0xff) |
1103b32e OZ |
139 | |
140 | #define SYM_TYPE(s) (((struct f_val *) (s)->def)->type) | |
141 | #define SYM_VAL(s) (((struct f_val *) (s)->def)->val) | |
ba921648 | 142 | |
48ec367a | 143 | struct include_file_stack { |
4be266a9 OZ |
144 | void *buffer; /* Internal lexer state */ |
145 | char *file_name; /* File name */ | |
146 | int fd; /* File descriptor */ | |
147 | int lino; /* Current line num */ | |
d50b0bc4 JMM |
148 | int chno; /* Current char num (on current line) */ |
149 | int toklen; /* Current token length */ | |
4be266a9 OZ |
150 | int depth; /* Include depth, 0 = cannot include */ |
151 | ||
152 | struct include_file_stack *prev; /* Previous record in stack */ | |
153 | struct include_file_stack *up; /* Parent (who included this file) */ | |
48ec367a OF |
154 | }; |
155 | ||
9b7fdfc8 | 156 | extern struct include_file_stack *ifs; |
48ec367a | 157 | |
e0835db4 OZ |
158 | extern struct sym_scope *conf_this_scope; |
159 | ||
fe7cec12 | 160 | int cf_lex(void); |
48ec367a | 161 | void cf_lex_init(int is_cli, struct config *c); |
0c3d9dac OZ |
162 | void cf_lex_unwind(void); |
163 | ||
9b9a7143 OZ |
164 | struct symbol *cf_find_symbol(struct config *cfg, byte *c); |
165 | ||
166 | struct symbol *cf_get_symbol(byte *c); | |
d272fe22 | 167 | struct symbol *cf_default_name(char *template, int *counter); |
04dc62a0 | 168 | struct symbol *cf_define_symbol(struct symbol *symbol, int type, void *def); |
df8b85e3 MM |
169 | void cf_push_scope(struct symbol *); |
170 | void cf_pop_scope(void); | |
4b87e256 | 171 | char *cf_symbol_class_name(struct symbol *sym); |
fe7cec12 | 172 | |
b2f00837 OZ |
173 | static inline int cf_symbol_is_constant(struct symbol *sym) |
174 | { return (sym->class & 0xff00) == SYM_CONSTANT; } | |
175 | ||
176 | ||
fe7cec12 MM |
177 | /* Parser */ |
178 | ||
9b0a0ba9 | 179 | extern char *cf_text; |
fe7cec12 MM |
180 | int cf_parse(void); |
181 | ||
7c0cc76e MM |
182 | /* Sysdep hooks */ |
183 | ||
184 | void sysdep_preconfig(struct config *); | |
50fe90ed | 185 | int sysdep_commit(struct config *, struct config *); |
bf8558bc | 186 | void sysdep_shutdown_done(void); |
7c0cc76e | 187 | |
fe7cec12 | 188 | #endif |