summaryrefslogtreecommitdiffstats
path: root/nest/config.Y
blob: 5ac9c213f536ec492caeddd5d14fdf63a9e4f937 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
/*
 *	BIRD -- Core Configuration
 *
 *	(c) 1998--2000 Martin Mares <mj@ucw.cz>
 *
 *	Can be freely distributed and used under the terms of the GNU GPL.
 */

CF_HDR

#include "nest/rt-dev.h"
#include "nest/password.h"
#include "nest/cmds.h"

CF_DEFINES

static struct proto_config *this_proto;
static struct iface_patt *this_ipatt;

CF_DECLS

CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, TABLE, STATES, ROUTES, FILTERS)
CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
CF_KEYWORDS(PRIMARY)

CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
	RIP, OSPF, OSPF_EXT, OSPF_IA, OSPF_BOUNDARY, BGP, PIPE)

%type <i32> idval
%type <f> imexport
%type <r> rtable
%type <p> password_list password_begin
%type <s> optsym
%type <ra> r_args
%type <i> echo_mask echo_size debug_mask debug_list debug_flag import_or_proto
%type <t> proto_patt

CF_GRAMMAR

/* Setting of router ID */

CF_ADDTO(conf, rtrid)

rtrid: ROUTER ID idval ';' {
   new_config->router_id = $3;
   }
 ;

idval:
   NUM { $$ = $1; }
 | RTRID
 | IPA {
#ifndef IPV6
     $$ = ipa_to_u32($1);
#else
     cf_error("Router IDs must be entered as hexadecimal numbers in IPv6 version");
#endif
   }
 ;

/* Creation of routing tables */

CF_ADDTO(conf, newtab)

newtab: TABLE SYM {
   rt_new_table($2);
   }
 ;

/* Definition of protocols */

CF_ADDTO(conf, proto)

proto_start: PROTOCOL

proto_name:
   /* EMPTY */ {
     struct symbol *s = cf_default_name(this_proto->protocol->template, &this_proto->protocol->name_counter);
     s->class = SYM_PROTO;
     s->def = this_proto;
     this_proto->name = s->name;
     }
 | SYM {
     cf_define_symbol($1, SYM_PROTO, this_proto);
     this_proto->name = $1->name;
   }
 ;

proto_item:
   /* EMPTY */
 | PREFERENCE expr {
     if ($2 < 0 || $2 > 255) cf_error("Invalid preference");
     this_proto->preference = $2;
   }
 | DISABLED { this_proto->disabled = 1; }
 | DEBUG debug_mask { this_proto->debug = $2; }
 | IMPORT imexport { this_proto->in_filter = $2; }
 | EXPORT imexport { this_proto->out_filter = $2; }
 | TABLE rtable { this_proto->table = $2; }
 ;

imexport:
   FILTER filter { $$ = $2; }
 | where_filter
 | ALL { $$ = FILTER_ACCEPT; }
 | NONE { $$ = FILTER_REJECT; }
 ;

rtable:
   SYM {
     if ($1->class != SYM_TABLE) cf_error("Table name expected");
     $$ = $1->def;
   }
 ;

CF_ADDTO(conf, debug_default)

debug_default:
   DEBUG PROTOCOLS debug_mask { new_config->proto_default_debug = $3; }
 ;

/* Interface patterns */

iface_patt:
   TEXT { this_ipatt->pattern = $1; this_ipatt->prefix = IPA_NONE; this_ipatt->pxlen = 0; }
 | IPA pxlen { this_ipatt->pattern = NULL; this_ipatt->prefix = $1; this_ipatt->pxlen = $2; }
 | TEXT IPA pxlen { this_ipatt->pattern = $1; this_ipatt->prefix = $2; this_ipatt->pxlen = $3; }
 ;

/* Direct device route protocol */

CF_ADDTO(proto, dev_proto '}')

dev_proto_start: proto_start DIRECT {
     struct rt_dev_config *p = proto_config_new(&proto_device, sizeof(struct rt_dev_config));
     this_proto = &p->c;
     p->c.preference = DEF_PREF_DIRECT;
     init_list(&p->iface_list);
   }
 ;

dev_proto:
   dev_proto_start proto_name '{'
 | dev_proto proto_item ';'
 | dev_proto dev_iface_list ';'
 ;

dev_iface_entry_init:
   /* EMPTY */ {
     struct rt_dev_config *p = (void *) this_proto;
     struct iface_patt *k = cfg_allocz(sizeof(struct iface_patt));
     add_tail(&p->iface_list, &k->n);
     this_ipatt = k;
   }
 ;

dev_iface_entry:
   dev_iface_entry_init iface_patt
 ;

dev_iface_list:
   INTERFACE dev_iface_entry
 | dev_iface_list ',' dev_iface_entry
 ;

/* Debug flags */

debug_mask:
   ALL { $$ = ~0; }
 | OFF { $$ = 0; }
 | '{' debug_list '}' { $$ = $2; }
 ;

debug_list:
   debug_flag
 | debug_list ',' debug_flag { $$ = $1 | $3; }
 ;

debug_flag:
   STATES	{ $$ = D_STATES; }
 | ROUTES	{ $$ = D_ROUTES; }
 | FILTERS	{ $$ = D_FILTERS; }
 | INTERFACES	{ $$ = D_IFACES; }
 | EVENTS	{ $$ = D_EVENTS; }
 | PACKETS	{ $$ = D_PACKETS; }
 ;

/* Password lists */

password_begin: 
   PASSWORD TEXT {
     last_password_item = cfg_alloc(sizeof (struct password_item));
     last_password_item->password = $2;
     last_password_item->from = 0;
     last_password_item->to = TIME_INFINITY;
     last_password_item->id = 0;
     last_password_item->next = NULL;
     $$=last_password_item;
   }
 ;

password_items:
   /* empty */ { } 
 | FROM datetime password_items { last_password_item->from = $2; }
 | TO datetime password_items { last_password_item->to = $2; }
 | PASSIVE datetime password_items { last_password_item->passive = $2; }
 | ID NUM password_items { last_password_item->id = $2; }
 ;

password_list: 
   /* empty */ { $$ = NULL; } 
 | password_begin password_items ';' password_list {
     $1->next = $4;
     $$ = $1;
   }
 ;

/* Core commands */

CF_CLI_HELP(SHOW, ..., [[Show status information]])

CF_CLI(SHOW STATUS,,, [[Show router status]])
{ cmd_show_status(); }

CF_CLI(SHOW PROTOCOLS, optsym, [<name>], [[Show routing protocols]])
{ proto_show($3, 0); } ;

CF_CLI(SHOW PROTOCOLS ALL, optsym, [<name>], [[Show routing protocol details]])
{ proto_show($4, 1); } ;

optsym:
   SYM
 | /* empty */ { $$ = NULL; }
 ;

CF_CLI(SHOW INTERFACES,,, [[Show network interfaces]])
{ if_show(); } ;

CF_CLI(SHOW INTERFACES SUMMARY,,, [[Show summary of network interfaces]])
{ if_show_summary(); } ;

CF_CLI(SHOW ROUTE, r_args, [<prefix>] [table <t>] [filter <f>] [all] [primary] [(import|protocol) <p>], [[Show routing table]])
{ rt_show($3); } ;

r_args:
   /* empty */ {
     $$ = cfg_allocz(sizeof(struct rt_show_data));
     $$->pxlen = 256;
     $$->filter = FILTER_ACCEPT;
     $$->table = config->master_rtc->table;
   }
 | r_args IPA pxlen {
     $$ = $1;
     if ($$->pxlen != 256) cf_error("Only one prefix expected");
     if (!ip_is_prefix($2, $3)) cf_error("Invalid prefix");
     $$->prefix = $2;
     $$->pxlen = $3;
   }
 | r_args TABLE SYM {
     $$ = $1;
     if ($3->class != SYM_TABLE) cf_error("%s is not a table", $3->name);
     $$->table = ((struct rtable_config *)$3->def)->table;
   }
 | r_args FILTER filter {
     $$ = $1;
     if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
     $$->filter = $3;
   }
 | r_args where_filter {
     $$ = $1;
     if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
     $$->filter = $2;
   }
 | r_args ALL {
     $$ = $1;
     $$->verbose = 1;
   }
 | r_args PRIMARY {
     $$ = $1;
     $$->primary_only = 1;
   }
 | r_args import_or_proto SYM {
     struct proto_config *c = (struct proto_config *) $3->def;
     $$ = $1;
     if ($$->import_mode) cf_error("Protocol specified twice");
     if ($3->class != SYM_PROTO || !c->proto) cf_error("%s is not a protocol", $3->name);
     $$->import_mode = $2;
     $$->primary_only = 1;
     $$->import_protocol = c->proto;
     $$->running_on_config = c->proto->cf->global;
   }
 ;

import_or_proto:
   IMPORT { $$ = 1; }
 | PROTOCOL { $$ = 2; }
 ;

CF_CLI(SHOW SYMBOLS, optsym, [<symbol>], [[Show all known symbolic names]])
{ cmd_show_symbols($3); } ;

CF_CLI_HELP(DUMP, ..., [[Dump debugging information]])
CF_CLI(DUMP RESOURCES,,, [[Dump all allocated resource]])
{ rdump(&root_pool); cli_msg(0, ""); } ;
CF_CLI(DUMP SOCKETS,,, [[Dump open sockets]])
{ sk_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP INTERFACES,,, [[Dump interface information]])
{ if_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP NEIGHBORS,,, [[Dump neighbor cache]])
{ neigh_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP ATTRIBUTES,,, [[Dump attribute cache]])
{ rta_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP ROUTES,,, [[Dump routing table]])
{ rt_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP PROTOCOLS,,, [[Dump protocol information]])
{ protos_dump_all(); cli_msg(0, ""); } ;

CF_CLI(ECHO, echo_mask echo_size, [all | off | <mask>] [<buffer-size>], [[Configure echoing of log messages]]) {
  cli_set_log_echo(this_cli, $2, $3);
  cli_msg(0, "");
} ;

echo_mask:
   ALL { $$ = ~0; }
 | OFF { $$ = 0; }
 | NUM
 ;

echo_size:
   /* empty */ { $$ = 4096; }
 | NUM {
     if ($1 < 256 || $1 > 65536) cf_error("Invalid log buffer size");
     $$ = $1;
   }
 ;

CF_CLI(DISABLE, proto_patt, <protocol> | <pattern> | all, [[Disable protocol]])
{ proto_xxable($2, 0); } ;
CF_CLI(ENABLE, proto_patt, <protocol> | <pattern> | all, [[Enable protocol]])
{ proto_xxable($2, 1); } ;
CF_CLI(RESTART, proto_patt, <protocol> | <pattern> | all, [[Restart protocol]])
{ proto_xxable($2, 2); } ;

CF_CLI_HELP(DEBUG, ..., [[Control protocol debugging]])
CF_CLI(DEBUG, proto_patt debug_mask, (<protocol> | <pattern> | all) (all | off | { states | routes | filters | events | packets }), [[Control protocol debugging]])
{ proto_debug($2, $3); }

proto_patt:
   SYM { $$ = $1->name; }
 | ALL { $$ = "*"; }
 | TEXT
 ;

CF_CODE

CF_END