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63115431 TL |
1 | /* parse.c |
2 | ||
3 | Common parser code for dhcpd and dhclient. */ | |
4 | ||
5 | /* | |
57fbc772 | 6 | * Copyright (c) 2004-2010 by Internet Systems Consortium, Inc. ("ISC") |
98311e4b | 7 | * Copyright (c) 1995-2003 by Internet Software Consortium |
63115431 | 8 | * |
98311e4b DH |
9 | * Permission to use, copy, modify, and distribute this software for any |
10 | * purpose with or without fee is hereby granted, provided that the above | |
11 | * copyright notice and this permission notice appear in all copies. | |
63115431 | 12 | * |
98311e4b DH |
13 | * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES |
14 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
15 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR | |
16 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
18 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
19 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
63115431 | 20 | * |
98311e4b DH |
21 | * Internet Systems Consortium, Inc. |
22 | * 950 Charter Street | |
23 | * Redwood City, CA 94063 | |
24 | * <info@isc.org> | |
2c85ac9b | 25 | * https://www.isc.org/ |
49733f31 | 26 | * |
98311e4b | 27 | * This software has been written for Internet Systems Consortium |
49733f31 | 28 | * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc. |
98311e4b | 29 | * To learn more about Internet Systems Consortium, see |
2c85ac9b | 30 | * ``https://www.isc.org/''. To learn more about Vixie Enterprises, |
49733f31 TL |
31 | * see ``http://www.vix.com''. To learn more about Nominum, Inc., see |
32 | * ``http://www.nominum.com''. | |
63115431 TL |
33 | */ |
34 | ||
63115431 | 35 | #include "dhcpd.h" |
fe5b0fdd | 36 | #include <syslog.h> |
63115431 | 37 | |
42c6a803 TL |
38 | /* Enumerations can be specified in option formats, and are used for |
39 | parsing, so we define the routines that manage them here. */ | |
40 | ||
41 | struct enumeration *enumerations; | |
42 | ||
43 | void add_enumeration (struct enumeration *enumeration) | |
44 | { | |
45 | enumeration -> next = enumerations; | |
46 | enumerations = enumeration; | |
47 | } | |
48 | ||
49 | struct enumeration *find_enumeration (const char *name, int length) | |
50 | { | |
51 | struct enumeration *e; | |
52 | ||
53 | for (e = enumerations; e; e = e -> next) | |
54 | if (strlen (e -> name) == length && | |
55 | !memcmp (e -> name, name, (unsigned)length)) | |
56 | return e; | |
57 | return (struct enumeration *)0; | |
58 | } | |
59 | ||
60 | struct enumeration_value *find_enumeration_value (const char *name, | |
61 | int length, | |
c54db708 | 62 | unsigned *widthp, |
42c6a803 TL |
63 | const char *value) |
64 | { | |
65 | struct enumeration *e; | |
66 | int i; | |
67 | ||
68 | e = find_enumeration (name, length); | |
69 | if (e) { | |
c54db708 FD |
70 | if (widthp != NULL) |
71 | *widthp = e->width; | |
42c6a803 TL |
72 | for (i = 0; e -> values [i].name; i++) { |
73 | if (!strcmp (value, e -> values [i].name)) | |
74 | return &e -> values [i]; | |
75 | } | |
76 | } | |
77 | return (struct enumeration_value *)0; | |
78 | } | |
79 | ||
63115431 TL |
80 | /* Skip to the semicolon ending the current statement. If we encounter |
81 | braces, the matching closing brace terminates the statement. If we | |
82 | encounter a right brace but haven't encountered a left brace, return | |
83 | leaving the brace in the token buffer for the caller. If we see a | |
84 | semicolon and haven't seen a left brace, return. This lets us skip | |
85 | over: | |
86 | ||
87 | statement; | |
88 | statement foo bar { } | |
89 | statement foo bar { statement { } } | |
90 | statement} | |
91 | ||
92 | ...et cetera. */ | |
93 | ||
94 | void skip_to_semi (cfile) | |
4615d498 | 95 | struct parse *cfile; |
cea8b5c9 TL |
96 | { |
97 | skip_to_rbrace (cfile, 0); | |
98 | } | |
99 | ||
100 | void skip_to_rbrace (cfile, brace_count) | |
4615d498 | 101 | struct parse *cfile; |
cea8b5c9 | 102 | int brace_count; |
63115431 | 103 | { |
02a015fb | 104 | enum dhcp_token token; |
b1b7b521 | 105 | const char *val; |
63115431 | 106 | |
f579f39f TL |
107 | #if defined (DEBUG_TOKEN) |
108 | log_error ("skip_to_rbrace: %d\n", brace_count); | |
109 | #endif | |
63115431 | 110 | do { |
b3519f23 | 111 | token = peek_token (&val, (unsigned *)0, cfile); |
63115431 | 112 | if (token == RBRACE) { |
b3519f23 | 113 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 114 | if (brace_count) { |
63115431 TL |
115 | if (!--brace_count) |
116 | return; | |
117 | } else | |
118 | return; | |
119 | } else if (token == LBRACE) { | |
120 | brace_count++; | |
121 | } else if (token == SEMI && !brace_count) { | |
b3519f23 | 122 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 123 | return; |
796ef008 TL |
124 | } else if (token == EOL) { |
125 | /* EOL only happens when parsing /etc/resolv.conf, | |
126 | and we treat it like a semicolon because the | |
127 | resolv.conf file is line-oriented. */ | |
b3519f23 | 128 | token = next_token (&val, (unsigned *)0, cfile); |
796ef008 | 129 | return; |
63115431 | 130 | } |
b3519f23 | 131 | token = next_token (&val, (unsigned *)0, cfile); |
0b69dcc8 | 132 | } while (token != END_OF_FILE); |
63115431 TL |
133 | } |
134 | ||
135 | int parse_semi (cfile) | |
4615d498 | 136 | struct parse *cfile; |
63115431 | 137 | { |
02a015fb | 138 | enum dhcp_token token; |
b1b7b521 | 139 | const char *val; |
63115431 | 140 | |
b3519f23 | 141 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 142 | if (token != SEMI) { |
4615d498 | 143 | parse_warn (cfile, "semicolon expected."); |
63115431 TL |
144 | skip_to_semi (cfile); |
145 | return 0; | |
146 | } | |
147 | return 1; | |
148 | } | |
149 | ||
150 | /* string-parameter :== STRING SEMI */ | |
151 | ||
b3519f23 | 152 | int parse_string (cfile, sptr, lptr) |
4615d498 | 153 | struct parse *cfile; |
b3519f23 TL |
154 | char **sptr; |
155 | unsigned *lptr; | |
63115431 | 156 | { |
b1b7b521 | 157 | const char *val; |
02a015fb | 158 | enum dhcp_token token; |
63115431 | 159 | char *s; |
b3519f23 | 160 | unsigned len; |
63115431 | 161 | |
b3519f23 | 162 | token = next_token (&val, &len, cfile); |
63115431 | 163 | if (token != STRING) { |
f769d5ac | 164 | parse_warn (cfile, "expecting a string"); |
63115431 | 165 | skip_to_semi (cfile); |
b3519f23 | 166 | return 0; |
63115431 | 167 | } |
b3519f23 | 168 | s = (char *)dmalloc (len + 1, MDL); |
63115431 | 169 | if (!s) |
8ae2d595 | 170 | log_fatal ("no memory for string %s.", val); |
b3519f23 | 171 | memcpy (s, val, len + 1); |
63115431 | 172 | |
b3519f23 TL |
173 | if (!parse_semi (cfile)) { |
174 | dfree (s, MDL); | |
175 | return 0; | |
176 | } | |
177 | if (sptr) | |
178 | *sptr = s; | |
179 | else | |
180 | dfree (s, MDL); | |
181 | if (lptr) | |
182 | *lptr = len; | |
183 | return 1; | |
63115431 TL |
184 | } |
185 | ||
be6be08d TL |
186 | /* |
187 | * hostname :== IDENTIFIER | |
188 | * | IDENTIFIER DOT | |
189 | * | hostname DOT IDENTIFIER | |
190 | */ | |
796ef008 TL |
191 | |
192 | char *parse_host_name (cfile) | |
4615d498 | 193 | struct parse *cfile; |
796ef008 | 194 | { |
b1b7b521 | 195 | const char *val; |
02a015fb | 196 | enum dhcp_token token; |
b1b7b521 | 197 | unsigned len = 0; |
796ef008 TL |
198 | char *s; |
199 | char *t; | |
200 | pair c = (pair)0; | |
88ab5737 | 201 | int ltid = 0; |
796ef008 TL |
202 | |
203 | /* Read a dotted hostname... */ | |
204 | do { | |
205 | /* Read a token, which should be an identifier. */ | |
b3519f23 | 206 | token = peek_token (&val, (unsigned *)0, cfile); |
68dda014 TL |
207 | if (!is_identifier (token) && token != NUMBER) |
208 | break; | |
b3519f23 | 209 | token = next_token (&val, (unsigned *)0, cfile); |
68dda014 | 210 | |
796ef008 | 211 | /* Store this identifier... */ |
fdac15d9 | 212 | if (!(s = (char *)dmalloc (strlen (val) + 1, MDL))) |
8ae2d595 | 213 | log_fatal ("can't allocate temp space for hostname."); |
796ef008 TL |
214 | strcpy (s, val); |
215 | c = cons ((caddr_t)s, c); | |
216 | len += strlen (s) + 1; | |
217 | /* Look for a dot; if it's there, keep going, otherwise | |
218 | we're done. */ | |
b3519f23 | 219 | token = peek_token (&val, (unsigned *)0, cfile); |
88ab5737 | 220 | if (token == DOT) { |
b3519f23 | 221 | token = next_token (&val, (unsigned *)0, cfile); |
88ab5737 TL |
222 | ltid = 1; |
223 | } else | |
224 | ltid = 0; | |
796ef008 TL |
225 | } while (token == DOT); |
226 | ||
fa392aea TL |
227 | /* Should be at least one token. */ |
228 | if (!len) | |
229 | return (char *)0; | |
230 | ||
796ef008 | 231 | /* Assemble the hostname together into a string. */ |
88ab5737 | 232 | if (!(s = (char *)dmalloc (len + ltid, MDL))) |
8ae2d595 | 233 | log_fatal ("can't allocate space for hostname."); |
88ab5737 | 234 | t = s + len + ltid; |
796ef008 | 235 | *--t = 0; |
88ab5737 TL |
236 | if (ltid) |
237 | *--t = '.'; | |
796ef008 TL |
238 | while (c) { |
239 | pair cdr = c -> cdr; | |
b1b7b521 | 240 | unsigned l = strlen ((char *)(c -> car)); |
796ef008 TL |
241 | t -= l; |
242 | memcpy (t, (char *)(c -> car), l); | |
243 | /* Free up temp space. */ | |
fdac15d9 TL |
244 | dfree (c -> car, MDL); |
245 | dfree (c, MDL); | |
796ef008 TL |
246 | c = cdr; |
247 | if (t != s) | |
248 | *--t = '.'; | |
249 | } | |
250 | return s; | |
251 | } | |
252 | ||
be6be08d TL |
253 | /* ip-addr-or-hostname :== ip-address | hostname |
254 | ip-address :== NUMBER DOT NUMBER DOT NUMBER DOT NUMBER | |
255 | ||
256 | Parse an ip address or a hostname. If uniform is zero, put in | |
257 | an expr_substring node to limit hostnames that evaluate to more | |
66eaae18 SK |
258 | than one IP address. |
259 | ||
260 | Note that RFC1123 permits hostnames to consist of all digits, | |
261 | making it difficult to quickly disambiguate them from ip addresses. | |
262 | */ | |
be6be08d | 263 | |
02a015fb TL |
264 | int parse_ip_addr_or_hostname (expr, cfile, uniform) |
265 | struct expression **expr; | |
4615d498 | 266 | struct parse *cfile; |
be6be08d TL |
267 | int uniform; |
268 | { | |
b1b7b521 | 269 | const char *val; |
02a015fb | 270 | enum dhcp_token token; |
be6be08d | 271 | unsigned char addr [4]; |
b1b7b521 | 272 | unsigned len = sizeof addr; |
be6be08d | 273 | char *name; |
02a015fb | 274 | struct expression *x = (struct expression *)0; |
66eaae18 | 275 | int ipaddr = 0; |
be6be08d | 276 | |
b3519f23 | 277 | token = peek_token (&val, (unsigned *)0, cfile); |
66eaae18 SK |
278 | |
279 | if (token == NUMBER) { | |
280 | /* | |
281 | * a hostname may be numeric, but domain names must | |
282 | * start with a letter, so we can disambiguate by | |
283 | * looking ahead a few tokens. we save the parse | |
284 | * context first, and restore it after we know what | |
285 | * we're dealing with. | |
286 | */ | |
bda33169 | 287 | save_parse_state(cfile); |
66eaae18 SK |
288 | (void) next_token(NULL, NULL, cfile); |
289 | if (next_token(NULL, NULL, cfile) == DOT && | |
290 | next_token(NULL, NULL, cfile) == NUMBER) | |
291 | ipaddr = 1; | |
bda33169 | 292 | restore_parse_state(cfile); |
66eaae18 SK |
293 | |
294 | if (ipaddr && | |
295 | parse_numeric_aggregate (cfile, addr, &len, DOT, 10, 8)) | |
296 | return make_const_data (expr, addr, len, 0, 1, MDL); | |
297 | ||
298 | } | |
299 | ||
300 | if (is_identifier (token) || token == NUMBER) { | |
be6be08d TL |
301 | name = parse_host_name (cfile); |
302 | if (!name) | |
02a015fb | 303 | return 0; |
98311e4b DH |
304 | if (!make_host_lookup (expr, name)) { |
305 | dfree(name, MDL); | |
02a015fb | 306 | return 0; |
98311e4b DH |
307 | } |
308 | dfree(name, MDL); | |
02a015fb TL |
309 | if (!uniform) { |
310 | if (!make_limit (&x, *expr, 4)) | |
311 | return 0; | |
4bd8800e | 312 | expression_dereference (expr, MDL); |
02a015fb TL |
313 | *expr = x; |
314 | } | |
be6be08d TL |
315 | } else { |
316 | if (token != RBRACE && token != LBRACE) | |
b3519f23 | 317 | token = next_token (&val, (unsigned *)0, cfile); |
4615d498 | 318 | parse_warn (cfile, "%s (%d): expecting IP address or hostname", |
be6be08d TL |
319 | val, token); |
320 | if (token != SEMI) | |
321 | skip_to_semi (cfile); | |
02a015fb | 322 | return 0; |
be6be08d TL |
323 | } |
324 | ||
02a015fb | 325 | return 1; |
be6be08d TL |
326 | } |
327 | ||
328 | /* | |
329 | * ip-address :== NUMBER DOT NUMBER DOT NUMBER DOT NUMBER | |
330 | */ | |
331 | ||
796ef008 | 332 | int parse_ip_addr (cfile, addr) |
4615d498 | 333 | struct parse *cfile; |
796ef008 TL |
334 | struct iaddr *addr; |
335 | { | |
796ef008 TL |
336 | addr -> len = 4; |
337 | if (parse_numeric_aggregate (cfile, addr -> iabuf, | |
338 | &addr -> len, DOT, 10, 8)) | |
339 | return 1; | |
340 | return 0; | |
341 | } | |
342 | ||
98bd7ca0 | 343 | /* |
20ae1aff | 344 | * Return true if every character in the string is hexadecimal. |
98bd7ca0 DH |
345 | */ |
346 | static int | |
347 | is_hex_string(const char *s) { | |
348 | while (*s != '\0') { | |
5eab8594 | 349 | if (!isxdigit((int)*s)) { |
98bd7ca0 DH |
350 | return 0; |
351 | } | |
352 | s++; | |
353 | } | |
354 | return 1; | |
355 | } | |
356 | ||
357 | /* | |
358 | * ip-address6 :== (complicated set of rules) | |
359 | * | |
360 | * See section 2.2 of RFC 1884 for details. | |
361 | * | |
362 | * We are lazy for this. We pull numbers, names, colons, and dots | |
363 | * together and then throw the resulting string at the inet_pton() | |
364 | * function. | |
365 | */ | |
366 | ||
367 | int | |
368 | parse_ip6_addr(struct parse *cfile, struct iaddr *addr) { | |
369 | enum dhcp_token token; | |
370 | const char *val; | |
371 | int val_len; | |
372 | ||
373 | char v6[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")]; | |
374 | int v6_len; | |
375 | ||
bda33169 SK |
376 | /* |
377 | * First token is non-raw. This way we eat any whitespace before | |
378 | * our IPv6 address begins, like one would expect. | |
379 | */ | |
380 | token = peek_token(&val, NULL, cfile); | |
381 | ||
382 | /* | |
383 | * Gather symbols. | |
384 | */ | |
98bd7ca0 DH |
385 | v6_len = 0; |
386 | for (;;) { | |
98bd7ca0 DH |
387 | if ((((token == NAME) || (token == NUMBER_OR_NAME)) && |
388 | is_hex_string(val)) || | |
389 | (token == NUMBER) || | |
390 | (token == DOT) || | |
391 | (token == COLON)) { | |
392 | ||
bda33169 | 393 | next_raw_token(&val, NULL, cfile); |
98bd7ca0 DH |
394 | val_len = strlen(val); |
395 | if ((v6_len + val_len) >= sizeof(v6)) { | |
396 | parse_warn(cfile, "Invalid IPv6 address."); | |
397 | skip_to_semi(cfile); | |
398 | return 0; | |
399 | } | |
400 | memcpy(v6+v6_len, val, val_len); | |
401 | v6_len += val_len; | |
402 | ||
403 | } else { | |
404 | break; | |
405 | } | |
bda33169 | 406 | token = peek_raw_token(&val, NULL, cfile); |
98bd7ca0 DH |
407 | } |
408 | v6[v6_len] = '\0'; | |
409 | ||
bda33169 SK |
410 | /* |
411 | * Use inet_pton() for actual work. | |
412 | */ | |
98bd7ca0 DH |
413 | if (inet_pton(AF_INET6, v6, addr->iabuf) <= 0) { |
414 | parse_warn(cfile, "Invalid IPv6 address."); | |
415 | skip_to_semi(cfile); | |
416 | return 0; | |
417 | } | |
418 | addr->len = 16; | |
419 | return 1; | |
420 | } | |
421 | ||
422 | /* | |
423 | * Same as parse_ip6_addr() above, but returns the value in the | |
424 | * expression rather than in an address structure. | |
425 | */ | |
426 | int | |
427 | parse_ip6_addr_expr(struct expression **expr, | |
428 | struct parse *cfile) { | |
429 | struct iaddr addr; | |
430 | ||
431 | if (!parse_ip6_addr(cfile, &addr)) { | |
432 | return 0; | |
433 | } | |
434 | return make_const_data(expr, addr.iabuf, addr.len, 0, 1, MDL); | |
435 | } | |
436 | ||
1d9774ab FD |
437 | /* |
438 | * ip6-prefix :== ip6-address "/" NUMBER | |
439 | */ | |
440 | int | |
441 | parse_ip6_prefix(struct parse *cfile, struct iaddr *addr, u_int8_t *plen) { | |
442 | enum dhcp_token token; | |
443 | const char *val; | |
444 | int n; | |
445 | ||
446 | if (!parse_ip6_addr(cfile, addr)) { | |
447 | return 0; | |
448 | } | |
449 | token = next_token(&val, NULL, cfile); | |
450 | if (token != SLASH) { | |
451 | parse_warn(cfile, "Slash expected."); | |
452 | if (token != SEMI) | |
453 | skip_to_semi(cfile); | |
454 | return 0; | |
455 | } | |
456 | token = next_token(&val, NULL, cfile); | |
457 | if (token != NUMBER) { | |
458 | parse_warn(cfile, "Number expected."); | |
459 | if (token != SEMI) | |
460 | skip_to_semi(cfile); | |
461 | return 0; | |
462 | } | |
463 | n = atoi(val); | |
464 | if ((n < 0) || (n > 128)) { | |
465 | parse_warn(cfile, "Invalid IPv6 prefix length."); | |
466 | skip_to_semi(cfile); | |
467 | return 0; | |
468 | } | |
469 | if (!is_cidr_mask_valid(addr, n)) { | |
470 | parse_warn(cfile, "network mask too short."); | |
471 | skip_to_semi(cfile); | |
472 | return 0; | |
473 | } | |
474 | *plen = n; | |
475 | return 1; | |
476 | } | |
477 | ||
febbd402 DH |
478 | /* |
479 | * ip-address-with-subnet :== ip-address | | |
480 | * ip-address "/" NUMBER | |
481 | */ | |
482 | ||
483 | int | |
484 | parse_ip_addr_with_subnet(cfile, match) | |
485 | struct parse *cfile; | |
486 | struct iaddrmatch *match; | |
487 | { | |
488 | const char *val, *orig; | |
489 | enum dhcp_token token; | |
490 | int prefixlen; | |
491 | int fflen; | |
492 | unsigned char newval, warnmask=0; | |
493 | ||
494 | if (parse_ip_addr(cfile, &match->addr)) { | |
495 | /* default to host mask */ | |
496 | prefixlen = match->addr.len * 8; | |
497 | ||
498 | token = peek_token(&val, NULL, cfile); | |
499 | ||
500 | if (token == SLASH) { | |
501 | next_token(&val, NULL, cfile); | |
502 | token = next_token(&val, NULL, cfile); | |
503 | ||
504 | if (token != NUMBER) { | |
505 | parse_warn(cfile, "Invalid CIDR prefix length:" | |
506 | " expecting a number."); | |
507 | return 0; | |
508 | } | |
509 | ||
510 | prefixlen = atoi(val); | |
511 | ||
512 | if (prefixlen < 0 || | |
513 | prefixlen > (match->addr.len * 8)) { | |
514 | parse_warn(cfile, "subnet prefix is out of " | |
515 | "range [0..%d].", | |
516 | match->addr.len * 8); | |
517 | return 0; | |
518 | } | |
519 | } | |
520 | ||
521 | /* construct a suitable mask field */ | |
522 | ||
523 | /* copy length */ | |
524 | match->mask.len = match->addr.len; | |
525 | ||
526 | /* count of 0xff bytes in mask */ | |
527 | fflen = prefixlen / 8; | |
528 | ||
529 | /* set leading mask */ | |
530 | memset(match->mask.iabuf, 0xff, fflen); | |
531 | ||
532 | /* set zeroes */ | |
533 | if (fflen < match->mask.len) { | |
534 | match->mask.iabuf[fflen] = | |
535 | "\x00\x80\xc0\xe0\xf0\xf8\xfc\xfe"[prefixlen % 8]; | |
536 | ||
537 | memset(match->mask.iabuf+fflen+1, 0x00, | |
538 | match->mask.len - fflen - 1); | |
539 | ||
540 | /* AND-out insignificant bits from supplied netmask. */ | |
541 | orig = piaddr(match->addr); | |
542 | do { | |
543 | newval = match->addr.iabuf[fflen] & | |
544 | match->mask.iabuf[fflen]; | |
545 | ||
546 | if (newval != match->addr.iabuf[fflen]) { | |
547 | warnmask = 1; | |
548 | match->addr.iabuf[fflen] = newval; | |
549 | } | |
550 | } while (++fflen < match->mask.len); | |
551 | ||
552 | if (warnmask) { | |
553 | log_error("Warning: Extraneous bits removed " | |
554 | "in address component of %s/%d.", | |
555 | orig, prefixlen); | |
556 | log_error("New value: %s/%d.", | |
557 | piaddr(match->addr), prefixlen); | |
558 | } | |
559 | } | |
560 | ||
561 | return 1; | |
562 | } | |
563 | ||
564 | parse_warn(cfile, | |
565 | "expecting ip-address or ip-address/prefixlen"); | |
566 | ||
567 | return 0; /* let caller pick up pieces */ | |
568 | } | |
569 | ||
be6be08d | 570 | /* |
c57db45c | 571 | * hardware-parameter :== HARDWARE hardware-type colon-separated-hex-list SEMI |
219a65eb | 572 | * hardware-type :== ETHERNET | TOKEN_RING | TOKEN_FDDI |
be6be08d | 573 | */ |
63115431 TL |
574 | |
575 | void parse_hardware_param (cfile, hardware) | |
4615d498 | 576 | struct parse *cfile; |
63115431 TL |
577 | struct hardware *hardware; |
578 | { | |
b1b7b521 | 579 | const char *val; |
02a015fb | 580 | enum dhcp_token token; |
e703795d | 581 | unsigned hlen; |
63115431 TL |
582 | unsigned char *t; |
583 | ||
b3519f23 | 584 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 TL |
585 | switch (token) { |
586 | case ETHERNET: | |
9fb2fb28 | 587 | hardware -> hbuf [0] = HTYPE_ETHER; |
63115431 TL |
588 | break; |
589 | case TOKEN_RING: | |
9fb2fb28 | 590 | hardware -> hbuf [0] = HTYPE_IEEE802; |
63115431 | 591 | break; |
219a65eb | 592 | case TOKEN_FDDI: |
9fb2fb28 | 593 | hardware -> hbuf [0] = HTYPE_FDDI; |
cea8b5c9 | 594 | break; |
63115431 | 595 | default: |
7d452841 | 596 | if (!strncmp (val, "unknown-", 8)) { |
9007657d | 597 | hardware -> hbuf [0] = atoi (&val [8]); |
7d452841 TL |
598 | } else { |
599 | parse_warn (cfile, | |
600 | "expecting a network hardware type"); | |
601 | skip_to_semi (cfile); | |
602 | ||
603 | return; | |
604 | } | |
63115431 TL |
605 | } |
606 | ||
607 | /* Parse the hardware address information. Technically, | |
608 | it would make a lot of sense to restrict the length of the | |
609 | data we'll accept here to the length of a particular hardware | |
610 | address type. Unfortunately, there are some broken clients | |
611 | out there that put bogus data in the chaddr buffer, and we accept | |
612 | that data in the lease file rather than simply failing on such | |
613 | clients. Yuck. */ | |
614 | hlen = 0; | |
b3519f23 | 615 | token = peek_token (&val, (unsigned *)0, cfile); |
1898dcf7 TL |
616 | if (token == SEMI) { |
617 | hardware -> hlen = 1; | |
618 | goto out; | |
619 | } | |
63115431 TL |
620 | t = parse_numeric_aggregate (cfile, (unsigned char *)0, &hlen, |
621 | COLON, 16, 8); | |
1898dcf7 TL |
622 | if (!t) { |
623 | hardware -> hlen = 1; | |
63115431 | 624 | return; |
1898dcf7 | 625 | } |
9fb2fb28 | 626 | if (hlen + 1 > sizeof hardware -> hbuf) { |
fdac15d9 | 627 | dfree (t, MDL); |
4615d498 | 628 | parse_warn (cfile, "hardware address too long"); |
63115431 | 629 | } else { |
9fb2fb28 TL |
630 | hardware -> hlen = hlen + 1; |
631 | memcpy ((unsigned char *)&hardware -> hbuf [1], t, hlen); | |
632 | if (hlen + 1 < sizeof hardware -> hbuf) | |
633 | memset (&hardware -> hbuf [hlen + 1], 0, | |
634 | (sizeof hardware -> hbuf) - hlen - 1); | |
fdac15d9 | 635 | dfree (t, MDL); |
63115431 TL |
636 | } |
637 | ||
1898dcf7 | 638 | out: |
b3519f23 | 639 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 640 | if (token != SEMI) { |
4615d498 | 641 | parse_warn (cfile, "expecting semicolon."); |
63115431 TL |
642 | skip_to_semi (cfile); |
643 | } | |
644 | } | |
645 | ||
646 | /* lease-time :== NUMBER SEMI */ | |
647 | ||
648 | void parse_lease_time (cfile, timep) | |
4615d498 | 649 | struct parse *cfile; |
63115431 TL |
650 | TIME *timep; |
651 | { | |
b1b7b521 | 652 | const char *val; |
02a015fb | 653 | enum dhcp_token token; |
88cd8aca | 654 | u_int32_t num; |
63115431 | 655 | |
b3519f23 | 656 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 657 | if (token != NUMBER) { |
4615d498 | 658 | parse_warn (cfile, "Expecting numeric lease time"); |
63115431 TL |
659 | skip_to_semi (cfile); |
660 | return; | |
661 | } | |
88cd8aca | 662 | convert_num(cfile, (unsigned char *)&num, val, 10, 32); |
63115431 | 663 | /* Unswap the number - convert_num returns stuff in NBO. */ |
88cd8aca | 664 | *timep = ntohl(num); |
63115431 TL |
665 | |
666 | parse_semi (cfile); | |
667 | } | |
668 | ||
669 | /* No BNF for numeric aggregates - that's defined by the caller. What | |
c57db45c SK |
670 | this function does is to parse a sequence of numbers separated by |
671 | the token specified in separator. If max is zero, any number of | |
63115431 TL |
672 | numbers will be parsed; otherwise, exactly max numbers are |
673 | expected. Base and size tell us how to internalize the numbers | |
674 | once they've been tokenized. */ | |
675 | ||
676 | unsigned char *parse_numeric_aggregate (cfile, buf, | |
c57db45c | 677 | max, separator, base, size) |
4615d498 | 678 | struct parse *cfile; |
63115431 | 679 | unsigned char *buf; |
b1b7b521 | 680 | unsigned *max; |
c57db45c | 681 | int separator; |
63115431 | 682 | int base; |
b1b7b521 | 683 | unsigned size; |
63115431 | 684 | { |
b1b7b521 | 685 | const char *val; |
02a015fb | 686 | enum dhcp_token token; |
63115431 | 687 | unsigned char *bufp = buf, *s, *t; |
b1b7b521 | 688 | unsigned count = 0; |
63115431 TL |
689 | pair c = (pair)0; |
690 | ||
691 | if (!bufp && *max) { | |
fdac15d9 | 692 | bufp = (unsigned char *)dmalloc (*max * size / 8, MDL); |
63115431 | 693 | if (!bufp) |
1ff8f8ea TL |
694 | log_fatal ("no space for numeric aggregate"); |
695 | s = 0; | |
63115431 TL |
696 | } else |
697 | s = bufp; | |
698 | ||
699 | do { | |
700 | if (count) { | |
b3519f23 | 701 | token = peek_token (&val, (unsigned *)0, cfile); |
c57db45c | 702 | if (token != separator) { |
63115431 TL |
703 | if (!*max) |
704 | break; | |
705 | if (token != RBRACE && token != LBRACE) | |
b3519f23 TL |
706 | token = next_token (&val, |
707 | (unsigned *)0, | |
708 | cfile); | |
4615d498 | 709 | parse_warn (cfile, "too few numbers."); |
63115431 TL |
710 | if (token != SEMI) |
711 | skip_to_semi (cfile); | |
712 | return (unsigned char *)0; | |
713 | } | |
b3519f23 | 714 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 715 | } |
b3519f23 | 716 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 717 | |
0b69dcc8 | 718 | if (token == END_OF_FILE) { |
4615d498 | 719 | parse_warn (cfile, "unexpected end of file"); |
63115431 TL |
720 | break; |
721 | } | |
722 | ||
723 | /* Allow NUMBER_OR_NAME if base is 16. */ | |
724 | if (token != NUMBER && | |
725 | (base != 16 || token != NUMBER_OR_NAME)) { | |
4615d498 | 726 | parse_warn (cfile, "expecting numeric value."); |
63115431 TL |
727 | skip_to_semi (cfile); |
728 | return (unsigned char *)0; | |
729 | } | |
730 | /* If we can, convert the number now; otherwise, build | |
731 | a linked list of all the numbers. */ | |
732 | if (s) { | |
4615d498 | 733 | convert_num (cfile, s, val, base, size); |
63115431 TL |
734 | s += size / 8; |
735 | } else { | |
fdac15d9 | 736 | t = (unsigned char *)dmalloc (strlen (val) + 1, MDL); |
63115431 | 737 | if (!t) |
8ae2d595 | 738 | log_fatal ("no temp space for number."); |
338303a4 TL |
739 | strcpy ((char *)t, val); |
740 | c = cons ((caddr_t)t, c); | |
63115431 TL |
741 | } |
742 | } while (++count != *max); | |
743 | ||
744 | /* If we had to cons up a list, convert it now. */ | |
745 | if (c) { | |
fdac15d9 | 746 | bufp = (unsigned char *)dmalloc (count * size / 8, MDL); |
63115431 | 747 | if (!bufp) |
1ff8f8ea | 748 | log_fatal ("no space for numeric aggregate."); |
63115431 TL |
749 | s = bufp + count - size / 8; |
750 | *max = count; | |
751 | } | |
752 | while (c) { | |
753 | pair cdr = c -> cdr; | |
4615d498 | 754 | convert_num (cfile, s, (char *)(c -> car), base, size); |
63115431 TL |
755 | s -= size / 8; |
756 | /* Free up temp space. */ | |
fdac15d9 TL |
757 | dfree (c -> car, MDL); |
758 | dfree (c, MDL); | |
63115431 TL |
759 | c = cdr; |
760 | } | |
761 | return bufp; | |
762 | } | |
763 | ||
4615d498 TL |
764 | void convert_num (cfile, buf, str, base, size) |
765 | struct parse *cfile; | |
63115431 | 766 | unsigned char *buf; |
b1b7b521 | 767 | const char *str; |
63115431 | 768 | int base; |
b1b7b521 | 769 | unsigned size; |
63115431 | 770 | { |
28868515 | 771 | const unsigned char *ptr = (const unsigned char *)str; |
63115431 TL |
772 | int negative = 0; |
773 | u_int32_t val = 0; | |
774 | int tval; | |
775 | int max; | |
776 | ||
777 | if (*ptr == '-') { | |
778 | negative = 1; | |
779 | ++ptr; | |
780 | } | |
781 | ||
782 | /* If base wasn't specified, figure it out from the data. */ | |
783 | if (!base) { | |
784 | if (ptr [0] == '0') { | |
785 | if (ptr [1] == 'x') { | |
786 | base = 16; | |
787 | ptr += 2; | |
788 | } else if (isascii (ptr [1]) && isdigit (ptr [1])) { | |
789 | base = 8; | |
790 | ptr += 1; | |
791 | } else { | |
792 | base = 10; | |
793 | } | |
794 | } else { | |
795 | base = 10; | |
796 | } | |
797 | } | |
798 | ||
799 | do { | |
800 | tval = *ptr++; | |
801 | /* XXX assumes ASCII... */ | |
802 | if (tval >= 'a') | |
803 | tval = tval - 'a' + 10; | |
804 | else if (tval >= 'A') | |
805 | tval = tval - 'A' + 10; | |
806 | else if (tval >= '0') | |
807 | tval -= '0'; | |
808 | else { | |
4615d498 | 809 | parse_warn (cfile, "Bogus number: %s.", str); |
63115431 TL |
810 | break; |
811 | } | |
812 | if (tval >= base) { | |
4615d498 TL |
813 | parse_warn (cfile, |
814 | "Bogus number %s: digit %d not in base %d", | |
f420e08c | 815 | str, tval, base); |
63115431 TL |
816 | break; |
817 | } | |
818 | val = val * base + tval; | |
819 | } while (*ptr); | |
820 | ||
821 | if (negative) | |
822 | max = (1 << (size - 1)); | |
823 | else | |
824 | max = (1 << (size - 1)) + ((1 << (size - 1)) - 1); | |
825 | if (val > max) { | |
826 | switch (base) { | |
827 | case 8: | |
4615d498 | 828 | parse_warn (cfile, |
06afba54 | 829 | "%s%lo exceeds max (%d) for precision.", |
b3d594dd TL |
830 | negative ? "-" : "", |
831 | (unsigned long)val, max); | |
63115431 TL |
832 | break; |
833 | case 16: | |
4615d498 | 834 | parse_warn (cfile, |
06afba54 | 835 | "%s%lx exceeds max (%d) for precision.", |
b3d594dd TL |
836 | negative ? "-" : "", |
837 | (unsigned long)val, max); | |
63115431 TL |
838 | break; |
839 | default: | |
4615d498 | 840 | parse_warn (cfile, |
06afba54 | 841 | "%s%lu exceeds max (%d) for precision.", |
b3d594dd TL |
842 | negative ? "-" : "", |
843 | (unsigned long)val, max); | |
63115431 TL |
844 | break; |
845 | } | |
846 | } | |
847 | ||
848 | if (negative) { | |
849 | switch (size) { | |
850 | case 8: | |
851 | *buf = -(unsigned long)val; | |
852 | break; | |
853 | case 16: | |
b1b7b521 | 854 | putShort (buf, -(long)val); |
63115431 TL |
855 | break; |
856 | case 32: | |
b1b7b521 | 857 | putLong (buf, -(long)val); |
63115431 TL |
858 | break; |
859 | default: | |
4615d498 TL |
860 | parse_warn (cfile, |
861 | "Unexpected integer size: %d\n", size); | |
63115431 TL |
862 | break; |
863 | } | |
864 | } else { | |
865 | switch (size) { | |
866 | case 8: | |
867 | *buf = (u_int8_t)val; | |
868 | break; | |
869 | case 16: | |
870 | putUShort (buf, (u_int16_t)val); | |
871 | break; | |
872 | case 32: | |
873 | putULong (buf, val); | |
874 | break; | |
875 | default: | |
4615d498 TL |
876 | parse_warn (cfile, |
877 | "Unexpected integer size: %d\n", size); | |
63115431 TL |
878 | break; |
879 | } | |
880 | } | |
881 | } | |
882 | ||
be6be08d TL |
883 | /* |
884 | * date :== NUMBER NUMBER SLASH NUMBER SLASH NUMBER | |
83d409ae | 885 | * NUMBER COLON NUMBER COLON NUMBER | |
a82abfc7 | 886 | * NUMBER NUMBER SLASH NUMBER SLASH NUMBER |
83d409ae SR |
887 | * NUMBER COLON NUMBER COLON NUMBER NUMBER | |
888 | * EPOCH NUMBER | | |
be1ee858 | 889 | * NEVER |
be6be08d | 890 | * |
b1d3778c | 891 | * Dates are stored in UTC or with a timezone offset; first number is day |
a82abfc7 TL |
892 | * of week; next is year/month/day; next is hours:minutes:seconds on a |
893 | * 24-hour clock, followed by the timezone offset in seconds, which is | |
894 | * optional. | |
be6be08d | 895 | */ |
63115431 | 896 | |
83d409ae SR |
897 | /* |
898 | * just parse the date | |
899 | * any trailing semi must be consumed by the caller of this routine | |
900 | */ | |
b1d3778c DH |
901 | TIME |
902 | parse_date_core(cfile) | |
4615d498 | 903 | struct parse *cfile; |
63115431 | 904 | { |
63115431 | 905 | int guess; |
a82abfc7 | 906 | int tzoff, wday, year, mon, mday, hour, min, sec; |
b1b7b521 | 907 | const char *val; |
02a015fb | 908 | enum dhcp_token token; |
83d409ae SR |
909 | static int months[11] = { 31, 59, 90, 120, 151, 181, |
910 | 212, 243, 273, 304, 334 }; | |
63115431 | 911 | |
83d409ae SR |
912 | /* "never", "epoch" or day of week */ |
913 | token = peek_token(&val, NULL, cfile); | |
be1ee858 | 914 | if (token == NEVER) { |
83d409ae SR |
915 | token = next_token(&val, NULL, cfile); /* consume NEVER */ |
916 | return(MAX_TIME); | |
be1ee858 TL |
917 | } |
918 | ||
5e864416 DH |
919 | /* This indicates 'local' time format. */ |
920 | if (token == EPOCH) { | |
83d409ae SR |
921 | token = next_token(&val, NULL, cfile); /* consume EPOCH */ |
922 | token = peek_token(&val, NULL, cfile); | |
5e864416 DH |
923 | |
924 | if (token != NUMBER) { | |
5e864416 | 925 | if (token != SEMI) |
83d409ae SR |
926 | token = next_token(&val, NULL, cfile); |
927 | parse_warn(cfile, "Seconds since epoch expected."); | |
928 | return((TIME)0); | |
5e864416 DH |
929 | } |
930 | ||
83d409ae | 931 | token = next_token(&val, NULL, cfile); /* consume number */ |
5e864416 DH |
932 | guess = atoi(val); |
933 | ||
83d409ae | 934 | return((TIME)guess); |
5e864416 DH |
935 | } |
936 | ||
63115431 | 937 | if (token != NUMBER) { |
63115431 | 938 | if (token != SEMI) |
83d409ae SR |
939 | token = next_token(&val, NULL, cfile); |
940 | parse_warn(cfile, "numeric day of week expected."); | |
941 | return((TIME)0); | |
63115431 | 942 | } |
83d409ae SR |
943 | token = next_token(&val, NULL, cfile); /* consume day of week */ |
944 | wday = atoi(val); | |
63115431 TL |
945 | |
946 | /* Year... */ | |
83d409ae | 947 | token = peek_token(&val, NULL, cfile); |
63115431 | 948 | if (token != NUMBER) { |
63115431 | 949 | if (token != SEMI) |
83d409ae SR |
950 | token = next_token(&val, NULL, cfile); |
951 | parse_warn(cfile, "numeric year expected."); | |
952 | return((TIME)0); | |
63115431 | 953 | } |
83d409ae | 954 | token = next_token(&val, NULL, cfile); /* consume year */ |
edca2b1a TL |
955 | |
956 | /* Note: the following is not a Y2K bug - it's a Y1.9K bug. Until | |
957 | somebody invents a time machine, I think we can safely disregard | |
958 | it. This actually works around a stupid Y2K bug that was present | |
959 | in a very early beta release of dhcpd. */ | |
83d409ae | 960 | year = atoi(val); |
a82abfc7 TL |
961 | if (year > 1900) |
962 | year -= 1900; | |
63115431 | 963 | |
c57db45c | 964 | /* Slash separating year from month... */ |
83d409ae | 965 | token = peek_token(&val, NULL, cfile); |
63115431 | 966 | if (token != SLASH) { |
63115431 | 967 | if (token != SEMI) |
83d409ae SR |
968 | token = next_token(&val, NULL, cfile); |
969 | parse_warn(cfile, | |
970 | "expected slash separating year from month."); | |
971 | return((TIME)0); | |
63115431 | 972 | } |
83d409ae | 973 | token = next_token(&val, NULL, cfile); /* consume SLASH */ |
63115431 TL |
974 | |
975 | /* Month... */ | |
83d409ae | 976 | token = peek_token(&val, NULL, cfile); |
63115431 | 977 | if (token != NUMBER) { |
63115431 | 978 | if (token != SEMI) |
83d409ae SR |
979 | token = next_token(&val, NULL, cfile); |
980 | parse_warn(cfile, "numeric month expected."); | |
981 | return((TIME)0); | |
63115431 | 982 | } |
83d409ae SR |
983 | token = next_token(&val, NULL, cfile); /* consume month */ |
984 | mon = atoi(val) - 1; | |
63115431 | 985 | |
c57db45c | 986 | /* Slash separating month from day... */ |
83d409ae | 987 | token = peek_token(&val, NULL, cfile); |
63115431 | 988 | if (token != SLASH) { |
63115431 | 989 | if (token != SEMI) |
83d409ae SR |
990 | token = next_token(&val, NULL, cfile); |
991 | parse_warn(cfile, | |
992 | "expected slash separating month from day."); | |
993 | return((TIME)0); | |
63115431 | 994 | } |
83d409ae | 995 | token = next_token(&val, NULL, cfile); /* consume SLASH */ |
63115431 | 996 | |
98311e4b | 997 | /* Day of month... */ |
83d409ae | 998 | token = peek_token(&val, NULL, cfile); |
63115431 | 999 | if (token != NUMBER) { |
63115431 | 1000 | if (token != SEMI) |
83d409ae SR |
1001 | token = next_token(&val, NULL, cfile); |
1002 | parse_warn(cfile, "numeric day of month expected."); | |
1003 | return((TIME)0); | |
63115431 | 1004 | } |
83d409ae SR |
1005 | token = next_token(&val, NULL, cfile); /* consume day of month */ |
1006 | mday = atoi(val); | |
63115431 TL |
1007 | |
1008 | /* Hour... */ | |
83d409ae | 1009 | token = peek_token(&val, NULL, cfile); |
63115431 | 1010 | if (token != NUMBER) { |
63115431 | 1011 | if (token != SEMI) |
83d409ae SR |
1012 | token = next_token(&val, NULL, cfile); |
1013 | parse_warn(cfile, "numeric hour expected."); | |
1014 | return((TIME)0); | |
63115431 | 1015 | } |
83d409ae SR |
1016 | token = next_token(&val, NULL, cfile); /* consume hour */ |
1017 | hour = atoi(val); | |
63115431 | 1018 | |
c57db45c | 1019 | /* Colon separating hour from minute... */ |
83d409ae | 1020 | token = peek_token(&val, NULL, cfile); |
63115431 | 1021 | if (token != COLON) { |
63115431 | 1022 | if (token != SEMI) |
83d409ae SR |
1023 | token = next_token(&val, NULL, cfile); |
1024 | parse_warn(cfile, | |
1025 | "expected colon separating hour from minute."); | |
1026 | return((TIME)0); | |
63115431 | 1027 | } |
83d409ae | 1028 | token = next_token(&val, NULL, cfile); /* consume colon */ |
63115431 TL |
1029 | |
1030 | /* Minute... */ | |
83d409ae | 1031 | token = peek_token(&val, NULL, cfile); |
63115431 | 1032 | if (token != NUMBER) { |
63115431 | 1033 | if (token != SEMI) |
83d409ae SR |
1034 | token = next_token(&val, NULL, cfile); |
1035 | parse_warn(cfile, "numeric minute expected."); | |
1036 | return((TIME)0); | |
63115431 | 1037 | } |
83d409ae SR |
1038 | token = next_token(&val, NULL, cfile); /* consume minute */ |
1039 | min = atoi(val); | |
63115431 | 1040 | |
c57db45c | 1041 | /* Colon separating minute from second... */ |
83d409ae | 1042 | token = peek_token(&val, NULL, cfile); |
63115431 | 1043 | if (token != COLON) { |
63115431 | 1044 | if (token != SEMI) |
83d409ae SR |
1045 | token = next_token(&val, NULL, cfile); |
1046 | parse_warn(cfile, | |
1047 | "expected colon separating minute from second."); | |
1048 | return((TIME)0); | |
63115431 | 1049 | } |
83d409ae | 1050 | token = next_token(&val, NULL, cfile); /* consume colon */ |
63115431 | 1051 | |
67674ffb | 1052 | /* Second... */ |
83d409ae | 1053 | token = peek_token(&val, NULL, cfile); |
63115431 | 1054 | if (token != NUMBER) { |
63115431 | 1055 | if (token != SEMI) |
83d409ae SR |
1056 | token = next_token(&val, NULL, cfile); |
1057 | parse_warn(cfile, "numeric second expected."); | |
1058 | return((TIME)0); | |
63115431 | 1059 | } |
83d409ae SR |
1060 | token = next_token(&val, NULL, cfile); /* consume second */ |
1061 | sec = atoi(val); | |
63115431 | 1062 | |
83d409ae SR |
1063 | tzoff = 0; |
1064 | token = peek_token(&val, NULL, cfile); | |
a82abfc7 | 1065 | if (token == NUMBER) { |
83d409ae SR |
1066 | token = next_token(&val, NULL, cfile); /* consume tzoff */ |
1067 | tzoff = atoi(val); | |
1068 | } else if (token != SEMI) { | |
1069 | token = next_token(&val, NULL, cfile); | |
1070 | parse_warn(cfile, | |
1071 | "Time zone offset or semicolon expected."); | |
1072 | return((TIME)0); | |
1073 | } | |
63115431 | 1074 | |
63115431 | 1075 | /* Guess the time value... */ |
a82abfc7 TL |
1076 | guess = ((((((365 * (year - 70) + /* Days in years since '70 */ |
1077 | (year - 69) / 4 + /* Leap days since '70 */ | |
1078 | (mon /* Days in months this year */ | |
1079 | ? months [mon - 1] | |
63115431 | 1080 | : 0) + |
a82abfc7 TL |
1081 | (mon > 1 && /* Leap day this year */ |
1082 | !((year - 72) & 3)) + | |
1083 | mday - 1) * 24) + /* Day of month */ | |
1084 | hour) * 60) + | |
1085 | min) * 60) + sec + tzoff; | |
63115431 TL |
1086 | |
1087 | /* This guess could be wrong because of leap seconds or other | |
1088 | weirdness we don't know about that the system does. For | |
1089 | now, we're just going to accept the guess, but at some point | |
1090 | it might be nice to do a successive approximation here to | |
1091 | get an exact value. Even if the error is small, if the | |
1092 | server is restarted frequently (and thus the lease database | |
1093 | is reread), the error could accumulate into something | |
1094 | significant. */ | |
1095 | ||
83d409ae | 1096 | return((TIME)guess); |
63115431 | 1097 | } |
4761e04b | 1098 | |
83d409ae SR |
1099 | /* |
1100 | * Wrapper to consume the semicolon after the date | |
1101 | * :== date semi | |
1102 | */ | |
1103 | ||
b1d3778c DH |
1104 | TIME |
1105 | parse_date(cfile) | |
1106 | struct parse *cfile; | |
1107 | { | |
83d409ae | 1108 | TIME guess; |
b1d3778c DH |
1109 | guess = parse_date_core(cfile); |
1110 | ||
1111 | /* Make sure the date ends in a semicolon... */ | |
1112 | if (!parse_semi(cfile)) | |
83d409ae SR |
1113 | return((TIME)0); |
1114 | return(guess); | |
b1d3778c DH |
1115 | } |
1116 | ||
1117 | ||
1118 | ||
be6be08d TL |
1119 | /* |
1120 | * option-name :== IDENTIFIER | | |
1121 | IDENTIFIER . IDENTIFIER | |
1122 | */ | |
1123 | ||
f7fdb216 DH |
1124 | isc_result_t |
1125 | parse_option_name (cfile, allocate, known, opt) | |
4615d498 | 1126 | struct parse *cfile; |
6b4b0ec7 | 1127 | int allocate; |
b1b7b521 | 1128 | int *known; |
f7fdb216 | 1129 | struct option **opt; |
4761e04b | 1130 | { |
b1b7b521 | 1131 | const char *val; |
02a015fb | 1132 | enum dhcp_token token; |
6b4b0ec7 | 1133 | char *uname; |
4761e04b TL |
1134 | struct universe *universe; |
1135 | struct option *option; | |
d5341d9b | 1136 | unsigned code; |
4761e04b | 1137 | |
f7fdb216 | 1138 | if (opt == NULL) |
98bf1607 | 1139 | return DHCP_R_INVALIDARG; |
f7fdb216 | 1140 | |
b3519f23 | 1141 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1142 | if (!is_identifier (token)) { |
4615d498 TL |
1143 | parse_warn (cfile, |
1144 | "expecting identifier after option keyword."); | |
4761e04b TL |
1145 | if (token != SEMI) |
1146 | skip_to_semi (cfile); | |
98bf1607 | 1147 | return DHCP_R_BADPARSE; |
4761e04b | 1148 | } |
fdac15d9 | 1149 | uname = dmalloc (strlen (val) + 1, MDL); |
6b4b0ec7 TL |
1150 | if (!uname) |
1151 | log_fatal ("no memory for uname information."); | |
1152 | strcpy (uname, val); | |
b3519f23 | 1153 | token = peek_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1154 | if (token == DOT) { |
1155 | /* Go ahead and take the DOT token... */ | |
b3519f23 | 1156 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1157 | |
1158 | /* The next token should be an identifier... */ | |
b3519f23 | 1159 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1160 | if (!is_identifier (token)) { |
4615d498 | 1161 | parse_warn (cfile, "expecting identifier after '.'"); |
4761e04b TL |
1162 | if (token != SEMI) |
1163 | skip_to_semi (cfile); | |
98bf1607 | 1164 | return DHCP_R_BADPARSE; |
4761e04b TL |
1165 | } |
1166 | ||
1167 | /* Look up the option name hash table for the specified | |
6b4b0ec7 | 1168 | uname. */ |
20916cae TL |
1169 | universe = (struct universe *)0; |
1170 | if (!universe_hash_lookup (&universe, universe_hash, | |
1171 | uname, 0, MDL)) { | |
4615d498 | 1172 | parse_warn (cfile, "no option space named %s.", uname); |
4761e04b | 1173 | skip_to_semi (cfile); |
f7fdb216 | 1174 | return ISC_R_NOTFOUND; |
4761e04b TL |
1175 | } |
1176 | } else { | |
1177 | /* Use the default hash table, which contains all the | |
1178 | standard dhcp option names. */ | |
6b4b0ec7 | 1179 | val = uname; |
4761e04b TL |
1180 | universe = &dhcp_universe; |
1181 | } | |
1182 | ||
1183 | /* Look up the actual option info... */ | |
f7fdb216 DH |
1184 | option_name_hash_lookup(opt, universe->name_hash, val, 0, MDL); |
1185 | option = *opt; | |
4761e04b TL |
1186 | |
1187 | /* If we didn't get an option structure, it's an undefined option. */ | |
b1b7b521 | 1188 | if (option) { |
9a7f6fcd TL |
1189 | if (known) |
1190 | *known = 1; | |
d5341d9b SK |
1191 | /* If the option name is of the form unknown-[decimal], use |
1192 | * the trailing decimal value to find the option definition. | |
1193 | * If there is no definition, construct one. This is to | |
1194 | * support legacy use of unknown options in config files or | |
1195 | * lease databases. | |
1196 | */ | |
1197 | } else if (strncasecmp(val, "unknown-", 8) == 0) { | |
1198 | code = atoi(val+8); | |
f7fdb216 | 1199 | |
d5341d9b SK |
1200 | /* Option code 0 is always illegal for us, thanks |
1201 | * to the option decoder. | |
1202 | */ | |
1203 | if (code == 0 || code == universe->end) { | |
1204 | parse_warn(cfile, "Option codes 0 and %u are illegal " | |
1205 | "in the %s space.", universe->end, | |
1206 | universe->name); | |
1207 | skip_to_semi(cfile); | |
f7fdb216 | 1208 | dfree(uname, MDL); |
d5341d9b | 1209 | return ISC_R_FAILURE; |
6b4b0ec7 | 1210 | } |
d5341d9b SK |
1211 | |
1212 | /* It's odd to think of unknown option codes as | |
1213 | * being known, but this means we know what the | |
1214 | * parsed name is talking about. | |
1215 | */ | |
1216 | if (known) | |
1217 | *known = 1; | |
1218 | ||
1219 | option_code_hash_lookup(opt, universe->code_hash, | |
1220 | &code, 0, MDL); | |
1221 | option = *opt; | |
1222 | ||
1223 | /* If we did not find an option of that code, | |
1224 | * manufacture an unknown-xxx option definition. | |
1225 | * Its single reference will ensure that it is | |
1226 | * deleted once the option is recycled out of | |
1227 | * existence (by the parent). | |
1228 | */ | |
1229 | if (option == NULL) { | |
1230 | option = new_option(val, MDL); | |
1231 | option->universe = universe; | |
1232 | option->code = code; | |
399d3dbe | 1233 | option->format = default_option_format; |
d5341d9b SK |
1234 | option_reference(opt, option, MDL); |
1235 | } else | |
1236 | log_info("option %s has been redefined as option %s. " | |
1237 | "Please update your configs if neccessary.", | |
1238 | val, option->name); | |
1239 | /* If we've been told to allocate, that means that this | |
1240 | * (might) be an option code definition, so we'll create | |
1241 | * an option structure and return it for the parent to | |
1242 | * decide. | |
1243 | */ | |
1244 | } else if (allocate) { | |
1245 | option = new_option(val, MDL); | |
1246 | option -> universe = universe; | |
1247 | option_reference(opt, option, MDL); | |
1248 | } else { | |
1249 | parse_warn(cfile, "no option named %s in space %s", | |
1250 | val, universe->name); | |
4761e04b | 1251 | skip_to_semi (cfile); |
f7fdb216 DH |
1252 | dfree(uname, MDL); |
1253 | return ISC_R_NOTFOUND; | |
4761e04b TL |
1254 | } |
1255 | ||
1256 | /* Free the initial identifier token. */ | |
fdac15d9 | 1257 | dfree (uname, MDL); |
f7fdb216 | 1258 | return ISC_R_SUCCESS; |
4761e04b TL |
1259 | } |
1260 | ||
f7fdb216 DH |
1261 | /* IDENTIFIER [WIDTHS] SEMI |
1262 | * WIDTHS ~= LENGTH WIDTH NUMBER | |
1263 | * CODE WIDTH NUMBER | |
1264 | */ | |
52c9d530 TL |
1265 | |
1266 | void parse_option_space_decl (cfile) | |
4615d498 | 1267 | struct parse *cfile; |
52c9d530 TL |
1268 | { |
1269 | int token; | |
b1b7b521 | 1270 | const char *val; |
52c9d530 | 1271 | struct universe **ua, *nu; |
f7fdb216 DH |
1272 | char *nu_name; |
1273 | int tsize=1, lsize=1, hsize = 0; | |
52c9d530 | 1274 | |
b3519f23 TL |
1275 | next_token (&val, (unsigned *)0, cfile); /* Discard the SPACE token, |
1276 | which was checked by the | |
1277 | caller. */ | |
1278 | token = next_token (&val, (unsigned *)0, cfile); | |
52c9d530 | 1279 | if (!is_identifier (token)) { |
4615d498 | 1280 | parse_warn (cfile, "expecting identifier."); |
52c9d530 TL |
1281 | skip_to_semi (cfile); |
1282 | return; | |
1283 | } | |
4bd8800e | 1284 | nu = new_universe (MDL); |
52c9d530 TL |
1285 | if (!nu) |
1286 | log_fatal ("No memory for new option space."); | |
1287 | ||
1288 | /* Set up the server option universe... */ | |
f7fdb216 DH |
1289 | nu_name = dmalloc (strlen (val) + 1, MDL); |
1290 | if (!nu_name) | |
52c9d530 | 1291 | log_fatal ("No memory for new option space name."); |
f7fdb216 DH |
1292 | strcpy (nu_name, val); |
1293 | nu -> name = nu_name; | |
1294 | ||
1295 | do { | |
1296 | token = next_token(&val, NULL, cfile); | |
1297 | switch(token) { | |
1298 | case SEMI: | |
1299 | break; | |
1300 | ||
1301 | case CODE: | |
1302 | token = next_token(&val, NULL, cfile); | |
1303 | if (token != WIDTH) { | |
1304 | parse_warn(cfile, "expecting width token."); | |
1305 | goto bad; | |
1306 | } | |
1307 | ||
1308 | token = next_token(&val, NULL, cfile); | |
1309 | if (token != NUMBER) { | |
1310 | parse_warn(cfile, "expecting number 1, 2, 4."); | |
1311 | goto bad; | |
1312 | } | |
1313 | ||
1314 | tsize = atoi(val); | |
1315 | ||
1316 | ||
1317 | switch (tsize) { | |
1318 | case 1: | |
1319 | if (!hsize) | |
1320 | hsize = BYTE_NAME_HASH_SIZE; | |
1321 | break; | |
1322 | case 2: | |
1323 | if (!hsize) | |
1324 | hsize = WORD_NAME_HASH_SIZE; | |
1325 | break; | |
1326 | case 4: | |
1327 | if (!hsize) | |
1328 | hsize = QUAD_NAME_HASH_SIZE; | |
1329 | break; | |
1330 | default: | |
1331 | parse_warn(cfile, "invalid code width (%d), " | |
1332 | "expecting a 1, 2 or 4.", | |
d19e2cf7 | 1333 | tsize); |
f7fdb216 DH |
1334 | goto bad; |
1335 | } | |
1336 | break; | |
1337 | ||
1338 | case LENGTH: | |
1339 | token = next_token(&val, NULL, cfile); | |
1340 | if (token != WIDTH) { | |
1341 | parse_warn(cfile, "expecting width token."); | |
1342 | goto bad; | |
1343 | } | |
1344 | ||
1345 | token = next_token(&val, NULL, cfile); | |
1346 | if (token != NUMBER) { | |
1347 | parse_warn(cfile, "expecting number 1 or 2."); | |
1348 | goto bad; | |
1349 | } | |
1350 | ||
1351 | lsize = atoi(val); | |
1352 | if (lsize != 1 && lsize != 2) { | |
1353 | parse_warn(cfile, "invalid length width (%d) " | |
d19e2cf7 | 1354 | "expecting 1 or 2.", lsize); |
f7fdb216 DH |
1355 | goto bad; |
1356 | } | |
1357 | ||
1358 | break; | |
1359 | ||
1360 | case HASH: | |
1361 | token = next_token(&val, NULL, cfile); | |
1362 | if (token != SIZE) { | |
1363 | parse_warn(cfile, "expecting size token."); | |
1364 | goto bad; | |
1365 | } | |
1366 | ||
1367 | token = next_token(&val, NULL, cfile); | |
1368 | if (token != NUMBER) { | |
1369 | parse_warn(cfile, "expecting a 10base number"); | |
1370 | goto bad; | |
1371 | } | |
1372 | ||
1373 | /* (2^31)-1 is the highest Mersenne prime we should | |
1374 | * probably allow... | |
1375 | */ | |
1376 | hsize = atoi(val); | |
1377 | if (hsize < 0 || hsize > 0x7FFFFFFF) { | |
1378 | parse_warn(cfile, "invalid hash length: %d", | |
1379 | hsize); | |
1380 | goto bad; | |
1381 | } | |
1382 | ||
1383 | break; | |
1384 | ||
1385 | default: | |
1386 | parse_warn(cfile, "Unexpected token."); | |
1387 | } | |
1388 | } while (token != SEMI); | |
1389 | ||
1390 | if (!hsize) | |
1391 | hsize = DEFAULT_SPACE_HASH_SIZE; | |
1392 | ||
52c9d530 | 1393 | nu -> lookup_func = lookup_hashed_option; |
f7fdb216 | 1394 | nu -> option_state_dereference = hashed_option_state_dereference; |
f769d5ac | 1395 | nu -> foreach = hashed_option_space_foreach; |
52c9d530 TL |
1396 | nu -> save_func = save_hashed_option; |
1397 | nu -> delete_func = delete_hashed_option; | |
1398 | nu -> encapsulate = hashed_option_space_encapsulate; | |
962dc4ab | 1399 | nu -> decode = parse_option_buffer; |
f7fdb216 DH |
1400 | nu -> length_size = lsize; |
1401 | nu -> tag_size = tsize; | |
1402 | switch(tsize) { | |
1403 | case 1: | |
1404 | nu->get_tag = getUChar; | |
1405 | nu->store_tag = putUChar; | |
1406 | break; | |
1407 | case 2: | |
1408 | nu->get_tag = getUShort; | |
1409 | nu->store_tag = putUShort; | |
1410 | break; | |
1411 | case 4: | |
1412 | nu->get_tag = getULong; | |
1413 | nu->store_tag = putULong; | |
1414 | break; | |
1415 | default: | |
1416 | log_fatal("Impossible condition at %s:%d.", MDL); | |
1417 | } | |
1418 | switch(lsize) { | |
98bd7ca0 DH |
1419 | case 0: |
1420 | nu->get_length = NULL; | |
1421 | nu->store_length = NULL; | |
1422 | break; | |
f7fdb216 DH |
1423 | case 1: |
1424 | nu->get_length = getUChar; | |
1425 | nu->store_length = putUChar; | |
1426 | break; | |
1427 | case 2: | |
1428 | nu->get_length = getUShort; | |
1429 | nu->store_length = putUShort; | |
1430 | break; | |
1431 | default: | |
1432 | log_fatal("Impossible condition at %s:%d.", MDL); | |
1433 | } | |
52c9d530 TL |
1434 | nu -> index = universe_count++; |
1435 | if (nu -> index >= universe_max) { | |
fdac15d9 | 1436 | ua = dmalloc (universe_max * 2 * sizeof *ua, MDL); |
52c9d530 TL |
1437 | if (!ua) |
1438 | log_fatal ("No memory to expand option space array."); | |
1439 | memcpy (ua, universes, universe_max * sizeof *ua); | |
1440 | universe_max *= 2; | |
fdac15d9 | 1441 | dfree (universes, MDL); |
52c9d530 TL |
1442 | universes = ua; |
1443 | } | |
1444 | universes [nu -> index] = nu; | |
f7fdb216 DH |
1445 | if (!option_name_new_hash(&nu->name_hash, hsize, MDL) || |
1446 | !option_code_new_hash(&nu->code_hash, hsize, MDL)) | |
1447 | log_fatal("Can't allocate %s option hash table.", nu->name); | |
20916cae | 1448 | universe_hash_add (universe_hash, nu -> name, 0, nu, MDL); |
f7fdb216 DH |
1449 | return; |
1450 | ||
1451 | bad: | |
1452 | dfree(nu_name, MDL); | |
1453 | dfree(nu, MDL); | |
52c9d530 TL |
1454 | } |
1455 | ||
6b4b0ec7 TL |
1456 | /* This is faked up to look good right now. Ideally, this should do a |
1457 | recursive parse and allow arbitrary data structure definitions, but for | |
1458 | now it just allows you to specify a single type, an array of single types, | |
1459 | a sequence of types, or an array of sequences of types. | |
1460 | ||
1461 | ocd :== NUMBER EQUALS ocsd SEMI | |
1462 | ||
1463 | ocsd :== ocsd_type | | |
1464 | ocsd_type_sequence | | |
d8fc5060 | 1465 | ARRAY OF ocsd_simple_type_sequence |
6b4b0ec7 TL |
1466 | |
1467 | ocsd_type_sequence :== LBRACE ocsd_types RBRACE | |
1468 | ||
d8fc5060 TL |
1469 | ocsd_simple_type_sequence :== LBRACE ocsd_simple_types RBRACE |
1470 | ||
1471 | ocsd_types :== ocsd_type | | |
1472 | ocsd_types ocsd_type | |
1473 | ||
1474 | ocsd_type :== ocsd_simple_type | | |
1475 | ARRAY OF ocsd_simple_type | |
1476 | ||
1477 | ocsd_simple_types :== ocsd_simple_type | | |
1478 | ocsd_simple_types ocsd_simple_type | |
1479 | ||
1480 | ocsd_simple_type :== BOOLEAN | | |
1481 | INTEGER NUMBER | | |
1482 | SIGNED INTEGER NUMBER | | |
1483 | UNSIGNED INTEGER NUMBER | | |
1484 | IP-ADDRESS | | |
1485 | TEXT | | |
962dc4ab TL |
1486 | STRING | |
1487 | ENCAPSULATE identifier */ | |
6b4b0ec7 TL |
1488 | |
1489 | int parse_option_code_definition (cfile, option) | |
4615d498 | 1490 | struct parse *cfile; |
6b4b0ec7 TL |
1491 | struct option *option; |
1492 | { | |
b1b7b521 | 1493 | const char *val; |
6b4b0ec7 | 1494 | enum dhcp_token token; |
f7fdb216 | 1495 | struct option *oldopt; |
b1b7b521 | 1496 | unsigned arrayp = 0; |
6b4b0ec7 TL |
1497 | int recordp = 0; |
1498 | int no_more_in_record = 0; | |
1499 | char tokbuf [128]; | |
b1b7b521 | 1500 | unsigned tokix = 0; |
6b4b0ec7 | 1501 | char type; |
6b4b0ec7 | 1502 | int is_signed; |
b1b7b521 | 1503 | char *s; |
962dc4ab | 1504 | int has_encapsulation = 0; |
98bd7ca0 | 1505 | struct universe *encapsulated; |
6b4b0ec7 TL |
1506 | |
1507 | /* Parse the option code. */ | |
b3519f23 | 1508 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1509 | if (token != NUMBER) { |
4615d498 | 1510 | parse_warn (cfile, "expecting option code number."); |
6b4b0ec7 TL |
1511 | skip_to_semi (cfile); |
1512 | return 0; | |
1513 | } | |
1514 | option -> code = atoi (val); | |
1515 | ||
b3519f23 | 1516 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1517 | if (token != EQUAL) { |
4615d498 | 1518 | parse_warn (cfile, "expecting \"=\""); |
6b4b0ec7 TL |
1519 | skip_to_semi (cfile); |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | /* See if this is an array. */ | |
b3519f23 | 1524 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1525 | if (token == ARRAY) { |
b3519f23 | 1526 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1527 | if (token != OF) { |
4615d498 | 1528 | parse_warn (cfile, "expecting \"of\"."); |
6b4b0ec7 TL |
1529 | skip_to_semi (cfile); |
1530 | return 0; | |
1531 | } | |
1532 | arrayp = 1; | |
b3519f23 | 1533 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1534 | } |
1535 | ||
1536 | if (token == LBRACE) { | |
1537 | recordp = 1; | |
b3519f23 | 1538 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1539 | } |
1540 | ||
1541 | /* At this point we're expecting a data type. */ | |
1542 | next_type: | |
962dc4ab TL |
1543 | if (has_encapsulation) { |
1544 | parse_warn (cfile, | |
1545 | "encapsulate must always be the last item."); | |
1546 | skip_to_semi (cfile); | |
1547 | return 0; | |
1548 | } | |
1549 | ||
6b4b0ec7 | 1550 | switch (token) { |
d8fc5060 TL |
1551 | case ARRAY: |
1552 | if (arrayp) { | |
1553 | parse_warn (cfile, "no nested arrays."); | |
1554 | skip_to_rbrace (cfile, recordp); | |
1555 | if (recordp) | |
1556 | skip_to_semi (cfile); | |
1557 | return 0; | |
1558 | } | |
b3519f23 | 1559 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1560 | if (token != OF) { |
1561 | parse_warn (cfile, "expecting \"of\"."); | |
1562 | skip_to_semi (cfile); | |
1563 | return 0; | |
1564 | } | |
1565 | arrayp = recordp + 1; | |
b3519f23 | 1566 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1567 | if ((recordp) && (token == LBRACE)) { |
1568 | parse_warn (cfile, | |
1569 | "only uniform array inside record."); | |
1570 | skip_to_rbrace (cfile, recordp + 1); | |
1571 | skip_to_semi (cfile); | |
1572 | return 0; | |
1573 | } | |
1574 | goto next_type; | |
6b4b0ec7 TL |
1575 | case BOOLEAN: |
1576 | type = 'f'; | |
1577 | break; | |
1578 | case INTEGER: | |
1579 | is_signed = 1; | |
1580 | parse_integer: | |
b3519f23 | 1581 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1582 | if (token != NUMBER) { |
4615d498 | 1583 | parse_warn (cfile, "expecting number."); |
6b4b0ec7 TL |
1584 | skip_to_rbrace (cfile, recordp); |
1585 | if (recordp) | |
1586 | skip_to_semi (cfile); | |
1587 | return 0; | |
1588 | } | |
1589 | switch (atoi (val)) { | |
1590 | case 8: | |
1591 | type = is_signed ? 'b' : 'B'; | |
1592 | break; | |
1593 | case 16: | |
1594 | type = is_signed ? 's' : 'S'; | |
1595 | break; | |
1596 | case 32: | |
1597 | type = is_signed ? 'l' : 'L'; | |
1598 | break; | |
1599 | default: | |
4615d498 TL |
1600 | parse_warn (cfile, |
1601 | "%s bit precision is not supported.", val); | |
6b4b0ec7 TL |
1602 | skip_to_rbrace (cfile, recordp); |
1603 | if (recordp) | |
1604 | skip_to_semi (cfile); | |
1605 | return 0; | |
1606 | } | |
1607 | break; | |
1608 | case SIGNED: | |
1609 | is_signed = 1; | |
1610 | parse_signed: | |
b3519f23 | 1611 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1612 | if (token != INTEGER) { |
4615d498 | 1613 | parse_warn (cfile, "expecting \"integer\" keyword."); |
6b4b0ec7 TL |
1614 | skip_to_rbrace (cfile, recordp); |
1615 | if (recordp) | |
1616 | skip_to_semi (cfile); | |
1617 | return 0; | |
1618 | } | |
1619 | goto parse_integer; | |
1620 | case UNSIGNED: | |
1621 | is_signed = 0; | |
1622 | goto parse_signed; | |
1623 | ||
1624 | case IP_ADDRESS: | |
1625 | type = 'I'; | |
1626 | break; | |
98bd7ca0 DH |
1627 | case IP6_ADDRESS: |
1628 | type = '6'; | |
1629 | break; | |
d758ad8c TL |
1630 | case DOMAIN_NAME: |
1631 | type = 'd'; | |
1632 | goto no_arrays; | |
dba5803b | 1633 | case DOMAIN_LIST: |
98bd7ca0 DH |
1634 | /* Consume optional compression indicator. */ |
1635 | token = peek_token(&val, NULL, cfile); | |
1636 | if (token == COMPRESSED) { | |
1637 | token = next_token(&val, NULL, cfile); | |
1638 | tokbuf[tokix++] = 'D'; | |
1639 | type = 'c'; | |
1640 | } else | |
1641 | type = 'D'; | |
dba5803b | 1642 | goto no_arrays; |
6b4b0ec7 TL |
1643 | case TEXT: |
1644 | type = 't'; | |
1645 | no_arrays: | |
1646 | if (arrayp) { | |
4615d498 | 1647 | parse_warn (cfile, "arrays of text strings not %s", |
6b4b0ec7 TL |
1648 | "yet supported."); |
1649 | skip_to_rbrace (cfile, recordp); | |
1650 | if (recordp) | |
1651 | skip_to_semi (cfile); | |
1652 | return 0; | |
1653 | } | |
1654 | no_more_in_record = 1; | |
1655 | break; | |
ef91cb39 | 1656 | case STRING_TOKEN: |
6b4b0ec7 TL |
1657 | type = 'X'; |
1658 | goto no_arrays; | |
1659 | ||
962dc4ab | 1660 | case ENCAPSULATE: |
b3519f23 | 1661 | token = next_token (&val, (unsigned *)0, cfile); |
962dc4ab TL |
1662 | if (!is_identifier (token)) { |
1663 | parse_warn (cfile, | |
1664 | "expecting option space identifier"); | |
1665 | skip_to_semi (cfile); | |
1666 | return 0; | |
1667 | } | |
98bd7ca0 DH |
1668 | encapsulated = NULL; |
1669 | if (!universe_hash_lookup(&encapsulated, universe_hash, | |
1670 | val, strlen(val), MDL)) { | |
a512d11b | 1671 | parse_warn(cfile, "unknown option space %s", val); |
98bd7ca0 DH |
1672 | skip_to_semi (cfile); |
1673 | return 0; | |
1674 | } | |
962dc4ab TL |
1675 | if (strlen (val) + tokix + 2 > sizeof (tokbuf)) |
1676 | goto toobig; | |
1677 | tokbuf [tokix++] = 'E'; | |
1678 | strcpy (&tokbuf [tokix], val); | |
1679 | tokix += strlen (val); | |
1680 | type = '.'; | |
1681 | has_encapsulation = 1; | |
1682 | break; | |
1683 | ||
4cafb815 EH |
1684 | case ZEROLEN: |
1685 | type = 'Z'; | |
1686 | if (arrayp) { | |
1687 | parse_warn (cfile, "array incompatible with zerolen."); | |
1688 | skip_to_rbrace (cfile, recordp); | |
1689 | if (recordp) | |
1690 | skip_to_semi (cfile); | |
1691 | return 0; | |
1692 | } | |
1693 | no_more_in_record = 1; | |
1694 | break; | |
1695 | ||
6b4b0ec7 | 1696 | default: |
4615d498 | 1697 | parse_warn (cfile, "unknown data type %s", val); |
6b4b0ec7 TL |
1698 | skip_to_rbrace (cfile, recordp); |
1699 | if (recordp) | |
1700 | skip_to_semi (cfile); | |
1701 | return 0; | |
1702 | } | |
1703 | ||
1704 | if (tokix == sizeof tokbuf) { | |
962dc4ab | 1705 | toobig: |
4615d498 | 1706 | parse_warn (cfile, "too many types in record."); |
6b4b0ec7 TL |
1707 | skip_to_rbrace (cfile, recordp); |
1708 | if (recordp) | |
1709 | skip_to_semi (cfile); | |
1710 | return 0; | |
1711 | } | |
1712 | tokbuf [tokix++] = type; | |
1713 | ||
1714 | if (recordp) { | |
b3519f23 | 1715 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1716 | if (arrayp > recordp) { |
1717 | if (tokix == sizeof tokbuf) { | |
1718 | parse_warn (cfile, | |
1719 | "too many types in record."); | |
1720 | skip_to_rbrace (cfile, 1); | |
1721 | skip_to_semi (cfile); | |
1722 | return 0; | |
1723 | } | |
1724 | arrayp = 0; | |
1725 | tokbuf[tokix++] = 'a'; | |
1726 | } | |
6b4b0ec7 TL |
1727 | if (token == COMMA) { |
1728 | if (no_more_in_record) { | |
4615d498 TL |
1729 | parse_warn (cfile, |
1730 | "%s must be at end of record.", | |
6b4b0ec7 TL |
1731 | type == 't' ? "text" : "string"); |
1732 | skip_to_rbrace (cfile, 1); | |
1733 | if (recordp) | |
1734 | skip_to_semi (cfile); | |
1735 | return 0; | |
1736 | } | |
b3519f23 | 1737 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1738 | goto next_type; |
1739 | } | |
1740 | if (token != RBRACE) { | |
4615d498 | 1741 | parse_warn (cfile, "expecting right brace."); |
6b4b0ec7 TL |
1742 | skip_to_rbrace (cfile, 1); |
1743 | if (recordp) | |
1744 | skip_to_semi (cfile); | |
1745 | return 0; | |
1746 | } | |
1747 | } | |
1748 | if (!parse_semi (cfile)) { | |
4615d498 | 1749 | parse_warn (cfile, "semicolon expected."); |
6b4b0ec7 TL |
1750 | skip_to_semi (cfile); |
1751 | if (recordp) | |
1752 | skip_to_semi (cfile); | |
1753 | return 0; | |
1754 | } | |
962dc4ab TL |
1755 | if (has_encapsulation && arrayp) { |
1756 | parse_warn (cfile, | |
1757 | "Arrays of encapsulations don't make sense."); | |
1758 | return 0; | |
1759 | } | |
98bd7ca0 DH |
1760 | s = dmalloc(tokix + (arrayp ? 1 : 0) + 1, MDL); |
1761 | if (s == NULL) { | |
1762 | log_fatal("no memory for option format."); | |
1763 | } | |
1764 | memcpy(s, tokbuf, tokix); | |
1765 | if (arrayp) { | |
1766 | s[tokix++] = (arrayp > recordp) ? 'a' : 'A'; | |
1767 | } | |
1768 | s[tokix] = '\0'; | |
1769 | ||
b1b7b521 | 1770 | option -> format = s; |
f7fdb216 DH |
1771 | |
1772 | oldopt = NULL; | |
1773 | option_code_hash_lookup(&oldopt, option->universe->code_hash, | |
1774 | &option->code, 0, MDL); | |
86f1d4b7 DH |
1775 | if (oldopt != NULL) { |
1776 | /* | |
1777 | * XXX: This illegalizes a configuration syntax that was | |
1778 | * valid in 3.0.x, where multiple name->code mappings are | |
1779 | * given, but only one code->name mapping survives. It is | |
1780 | * unclear what can or should be done at this point, but it | |
1781 | * seems best to retain 3.0.x behaviour for upgrades to go | |
1782 | * smoothly. | |
1783 | * | |
f7fdb216 DH |
1784 | option_name_hash_delete(option->universe->name_hash, |
1785 | oldopt->name, 0, MDL); | |
86f1d4b7 | 1786 | */ |
f7fdb216 DH |
1787 | option_code_hash_delete(option->universe->code_hash, |
1788 | &oldopt->code, 0, MDL); | |
1789 | ||
1790 | option_dereference(&oldopt, MDL); | |
6b4b0ec7 | 1791 | } |
f7fdb216 DH |
1792 | option_code_hash_add(option->universe->code_hash, &option->code, 0, |
1793 | option, MDL); | |
1794 | option_name_hash_add(option->universe->name_hash, option->name, 0, | |
1795 | option, MDL); | |
98bd7ca0 DH |
1796 | if (has_encapsulation) { |
1797 | /* INSIST(tokbuf[0] == 'E'); */ | |
1798 | /* INSIST(encapsulated != NULL); */ | |
1799 | if (!option_code_hash_lookup(&encapsulated->enc_opt, | |
1800 | option->universe->code_hash, | |
1801 | &option->code, 0, MDL)) { | |
1802 | log_fatal("error finding encapsulated option (%s:%d)", | |
1803 | MDL); | |
1804 | } | |
1805 | } | |
6b4b0ec7 TL |
1806 | return 1; |
1807 | } | |
1808 | ||
028b1f6a TL |
1809 | /* |
1810 | * base64 :== NUMBER_OR_STRING | |
1811 | */ | |
1812 | ||
1813 | int parse_base64 (data, cfile) | |
1814 | struct data_string *data; | |
1815 | struct parse *cfile; | |
1816 | { | |
1817 | enum dhcp_token token; | |
1818 | const char *val; | |
8f01f9ec | 1819 | int i, j, k; |
028b1f6a | 1820 | unsigned acc = 0; |
6b474b5b TL |
1821 | static unsigned char |
1822 | from64 [] = {64, 64, 64, 64, 64, 64, 64, 64, /* \"#$%&' */ | |
1823 | 64, 64, 64, 62, 64, 64, 64, 63, /* ()*+,-./ */ | |
1824 | 52, 53, 54, 55, 56, 57, 58, 59, /* 01234567 */ | |
d758ad8c | 1825 | 60, 61, 64, 64, 64, 64, 64, 64, /* 89:;<=>? */ |
6b474b5b TL |
1826 | 64, 0, 1, 2, 3, 4, 5, 6, /* @ABCDEFG */ |
1827 | 7, 8, 9, 10, 11, 12, 13, 14, /* HIJKLMNO */ | |
1828 | 15, 16, 17, 18, 19, 20, 21, 22, /* PQRSTUVW */ | |
1829 | 23, 24, 25, 64, 64, 64, 64, 64, /* XYZ[\]^_ */ | |
1830 | 64, 26, 27, 28, 29, 30, 31, 32, /* 'abcdefg */ | |
1831 | 33, 34, 35, 36, 37, 38, 39, 40, /* hijklmno */ | |
1832 | 41, 42, 43, 44, 45, 46, 47, 48, /* pqrstuvw */ | |
630786fc | 1833 | 49, 50, 51, 64, 64, 64, 64, 64}; /* xyz{|}~ */ |
8f01f9ec TL |
1834 | struct string_list *bufs = (struct string_list *)0, |
1835 | *last = (struct string_list *)0, | |
1836 | *t; | |
1837 | int cc = 0; | |
1838 | int terminated = 0; | |
028b1f6a | 1839 | |
8f01f9ec TL |
1840 | /* It's possible for a + or a / to cause a base64 quantity to be |
1841 | tokenized into more than one token, so we have to parse them all | |
1842 | in before decoding. */ | |
1843 | do { | |
b3519f23 | 1844 | unsigned l; |
8f01f9ec | 1845 | |
b3519f23 | 1846 | token = next_token (&val, &l, cfile); |
8f01f9ec TL |
1847 | t = dmalloc (l + sizeof *t, MDL); |
1848 | if (!t) | |
1849 | log_fatal ("no memory for base64 buffer."); | |
1850 | memset (t, 0, (sizeof *t) - 1); | |
b3519f23 | 1851 | memcpy (t -> string, val, l + 1); |
8f01f9ec TL |
1852 | cc += l; |
1853 | if (last) | |
1854 | last -> next = t; | |
1855 | else | |
1856 | bufs = t; | |
1857 | last = t; | |
b3519f23 | 1858 | token = peek_token (&val, (unsigned *)0, cfile); |
8f01f9ec | 1859 | } while (token == NUMBER_OR_NAME || token == NAME || token == EQUAL || |
2f98b84e TL |
1860 | token == NUMBER || token == PLUS || token == SLASH || |
1861 | token == STRING); | |
8f01f9ec TL |
1862 | |
1863 | data -> len = cc; | |
028b1f6a TL |
1864 | data -> len = (data -> len * 3) / 4; |
1865 | if (!buffer_allocate (&data -> buffer, data -> len, MDL)) { | |
1866 | parse_warn (cfile, "can't allocate buffer for base64 data."); | |
1867 | data -> len = 0; | |
1868 | data -> data = (unsigned char *)0; | |
1869 | return 0; | |
1870 | } | |
1871 | ||
8f01f9ec TL |
1872 | j = k = 0; |
1873 | for (t = bufs; t; t = t -> next) { | |
1874 | for (i = 0; t -> string [i]; i++) { | |
1875 | unsigned foo = t -> string [i]; | |
1876 | if (terminated && foo != '=') { | |
1877 | parse_warn (cfile, | |
1878 | "stuff after base64 '=' terminator: %s.", | |
1879 | &t -> string [i]); | |
1880 | goto bad; | |
1881 | } | |
028b1f6a TL |
1882 | if (foo < ' ' || foo > 'z') { |
1883 | bad64: | |
1884 | parse_warn (cfile, | |
8f01f9ec TL |
1885 | "invalid base64 character %d.", |
1886 | t -> string [i]); | |
1887 | bad: | |
028b1f6a | 1888 | data_string_forget (data, MDL); |
8f01f9ec | 1889 | goto out; |
028b1f6a | 1890 | } |
8f01f9ec TL |
1891 | if (foo == '=') |
1892 | terminated = 1; | |
1893 | else { | |
1894 | foo = from64 [foo - ' ']; | |
1895 | if (foo == 64) | |
1896 | goto bad64; | |
1897 | acc = (acc << 6) + foo; | |
1898 | switch (k % 4) { | |
1899 | case 0: | |
1900 | break; | |
1901 | case 1: | |
1902 | data -> buffer -> data [j++] = (acc >> 4); | |
1903 | acc = acc & 0x0f; | |
1904 | break; | |
1905 | ||
1906 | case 2: | |
1907 | data -> buffer -> data [j++] = (acc >> 2); | |
1908 | acc = acc & 0x03; | |
1909 | break; | |
1910 | case 3: | |
1911 | data -> buffer -> data [j++] = acc; | |
1912 | acc = 0; | |
1913 | break; | |
1914 | } | |
1915 | } | |
1916 | k++; | |
1917 | } | |
1918 | } | |
1919 | if (k % 4) { | |
1920 | if (acc) { | |
1921 | parse_warn (cfile, | |
1922 | "partial base64 value left over: %d.", | |
1923 | acc); | |
028b1f6a TL |
1924 | } |
1925 | } | |
028b1f6a TL |
1926 | data -> len = j; |
1927 | data -> data = data -> buffer -> data; | |
8f01f9ec TL |
1928 | out: |
1929 | for (t = bufs; t; t = last) { | |
1930 | last = t -> next; | |
1931 | dfree (t, MDL); | |
1932 | } | |
1933 | if (data -> len) | |
1934 | return 1; | |
1935 | else | |
1936 | return 0; | |
028b1f6a TL |
1937 | } |
1938 | ||
1939 | ||
be6be08d | 1940 | /* |
c57db45c SK |
1941 | * colon-separated-hex-list :== NUMBER | |
1942 | * NUMBER COLON colon-separated-hex-list | |
be6be08d TL |
1943 | */ |
1944 | ||
02a015fb TL |
1945 | int parse_cshl (data, cfile) |
1946 | struct data_string *data; | |
4615d498 | 1947 | struct parse *cfile; |
4761e04b | 1948 | { |
c5b0f529 | 1949 | u_int8_t ibuf [128]; |
b1b7b521 TL |
1950 | unsigned ilen = 0; |
1951 | unsigned tlen = 0; | |
4761e04b TL |
1952 | struct option_tag *sl = (struct option_tag *)0; |
1953 | struct option_tag *next, **last = &sl; | |
02a015fb | 1954 | enum dhcp_token token; |
b1b7b521 | 1955 | const char *val; |
02a015fb | 1956 | unsigned char *rvp; |
4761e04b TL |
1957 | |
1958 | do { | |
b3519f23 | 1959 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1960 | if (token != NUMBER && token != NUMBER_OR_NAME) { |
4615d498 | 1961 | parse_warn (cfile, "expecting hexadecimal number."); |
4761e04b TL |
1962 | skip_to_semi (cfile); |
1963 | for (; sl; sl = next) { | |
1964 | next = sl -> next; | |
fdac15d9 | 1965 | dfree (sl, MDL); |
4761e04b | 1966 | } |
02a015fb | 1967 | return 0; |
4761e04b TL |
1968 | } |
1969 | if (ilen == sizeof ibuf) { | |
1970 | next = (struct option_tag *) | |
1971 | dmalloc (ilen - 1 + | |
fdac15d9 | 1972 | sizeof (struct option_tag), MDL); |
4761e04b | 1973 | if (!next) |
8ae2d595 | 1974 | log_fatal ("no memory for string list."); |
4761e04b TL |
1975 | memcpy (next -> data, ibuf, ilen); |
1976 | *last = next; | |
1977 | last = &next -> next; | |
1978 | tlen += ilen; | |
1979 | ilen = 0; | |
1980 | } | |
4615d498 | 1981 | convert_num (cfile, &ibuf [ilen++], val, 16, 8); |
4761e04b | 1982 | |
b3519f23 | 1983 | token = peek_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1984 | if (token != COLON) |
1985 | break; | |
b3519f23 | 1986 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1987 | } while (1); |
1988 | ||
4bd8800e | 1989 | if (!buffer_allocate (&data -> buffer, tlen + ilen, MDL)) |
8ae2d595 | 1990 | log_fatal ("no memory to store octet data."); |
02a015fb TL |
1991 | data -> data = &data -> buffer -> data [0]; |
1992 | data -> len = tlen + ilen; | |
1993 | data -> terminated = 0; | |
1994 | ||
b1b7b521 | 1995 | rvp = &data -> buffer -> data [0]; |
4761e04b TL |
1996 | while (sl) { |
1997 | next = sl -> next; | |
1998 | memcpy (rvp, sl -> data, sizeof ibuf); | |
1999 | rvp += sizeof ibuf; | |
fdac15d9 | 2000 | dfree (sl, MDL); |
4761e04b TL |
2001 | sl = next; |
2002 | } | |
2003 | ||
2004 | memcpy (rvp, ibuf, ilen); | |
02a015fb | 2005 | return 1; |
4761e04b | 2006 | } |
be6be08d TL |
2007 | |
2008 | /* | |
2009 | * executable-statements :== executable-statement executable-statements | | |
2010 | * executable-statement | |
2011 | * | |
2012 | * executable-statement :== | |
2013 | * IF if-statement | | |
2014 | * ADD class-name SEMI | | |
2015 | * BREAK SEMI | | |
2016 | * OPTION option-parameter SEMI | | |
2017 | * SUPERSEDE option-parameter SEMI | | |
2018 | * PREPEND option-parameter SEMI | | |
2019 | * APPEND option-parameter SEMI | |
2020 | */ | |
2021 | ||
f579f39f | 2022 | int parse_executable_statements (statements, cfile, lose, case_context) |
79a65726 | 2023 | struct executable_statement **statements; |
4615d498 | 2024 | struct parse *cfile; |
be6be08d | 2025 | int *lose; |
f579f39f | 2026 | enum expression_context case_context; |
be6be08d | 2027 | { |
79a65726 | 2028 | struct executable_statement **next; |
be6be08d | 2029 | |
79a65726 | 2030 | next = statements; |
f579f39f | 2031 | while (parse_executable_statement (next, cfile, lose, case_context)) |
be6be08d | 2032 | next = &((*next) -> next); |
02a015fb | 2033 | if (!*lose) |
79a65726 TL |
2034 | return 1; |
2035 | return 0; | |
be6be08d TL |
2036 | } |
2037 | ||
f579f39f | 2038 | int parse_executable_statement (result, cfile, lose, case_context) |
79a65726 | 2039 | struct executable_statement **result; |
4615d498 | 2040 | struct parse *cfile; |
be6be08d | 2041 | int *lose; |
f579f39f | 2042 | enum expression_context case_context; |
be6be08d | 2043 | { |
66cebfcb DH |
2044 | #if defined(ENABLE_EXECUTE) |
2045 | unsigned len; | |
2046 | struct expression **ep; | |
2047 | #endif | |
02a015fb | 2048 | enum dhcp_token token; |
b1b7b521 | 2049 | const char *val; |
be6be08d | 2050 | struct class *cta; |
272ef1bc | 2051 | struct option *option=NULL; |
b1013db7 | 2052 | struct option_cache *cache; |
b1b7b521 | 2053 | int known; |
0776fd12 | 2054 | int flag; |
88ab5737 | 2055 | int i; |
fa392aea | 2056 | struct dns_zone *zone; |
fa392aea | 2057 | isc_result_t status; |
d758ad8c | 2058 | char *s; |
be6be08d | 2059 | |
b3519f23 | 2060 | token = peek_token (&val, (unsigned *)0, cfile); |
b1013db7 | 2061 | switch (token) { |
5e864416 DH |
2062 | case DB_TIME_FORMAT: |
2063 | next_token(&val, NULL, cfile); | |
2064 | ||
2065 | token = next_token(&val, NULL, cfile); | |
2066 | if (token == DEFAULT) { | |
2067 | db_time_format = DEFAULT_TIME_FORMAT; | |
2068 | } else if (token == LOCAL) { | |
2069 | db_time_format = LOCAL_TIME_FORMAT; | |
2070 | } else { | |
2071 | parse_warn(cfile, "Expecting 'local' or 'default'."); | |
2072 | if (token != SEMI) | |
2073 | skip_to_semi(cfile); | |
2074 | *lose = 1; | |
2075 | return 0; | |
2076 | } | |
2077 | ||
2078 | token = next_token(&val, NULL, cfile); | |
2079 | if (token != SEMI) { | |
2080 | parse_warn(cfile, "Expecting a semicolon."); | |
2081 | *lose = 1; | |
2082 | return 0; | |
2083 | } | |
2084 | ||
2085 | /* We're done here. */ | |
2086 | return 1; | |
2087 | ||
be6be08d | 2088 | case IF: |
b3519f23 | 2089 | next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
2090 | return parse_if_statement (result, cfile, lose); |
2091 | ||
eb018e2b | 2092 | case TOKEN_ADD: |
b3519f23 TL |
2093 | token = next_token (&val, (unsigned *)0, cfile); |
2094 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 2095 | if (token != STRING) { |
4615d498 | 2096 | parse_warn (cfile, "expecting class name."); |
be6be08d TL |
2097 | skip_to_semi (cfile); |
2098 | *lose = 1; | |
79a65726 | 2099 | return 0; |
be6be08d | 2100 | } |
20916cae TL |
2101 | cta = (struct class *)0; |
2102 | status = find_class (&cta, val, MDL); | |
2103 | if (status != ISC_R_SUCCESS) { | |
2104 | parse_warn (cfile, "class %s: %s", | |
2105 | val, isc_result_totext (status)); | |
be6be08d TL |
2106 | skip_to_semi (cfile); |
2107 | *lose = 1; | |
79a65726 | 2108 | return 0; |
be6be08d TL |
2109 | } |
2110 | if (!parse_semi (cfile)) { | |
2111 | *lose = 1; | |
79a65726 | 2112 | return 0; |
be6be08d | 2113 | } |
4bd8800e | 2114 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2115 | log_fatal ("no memory for new statement."); |
2116 | (*result) -> op = add_statement; | |
2117 | (*result) -> data.add = cta; | |
be6be08d TL |
2118 | break; |
2119 | ||
2120 | case BREAK: | |
b3519f23 | 2121 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
2122 | if (!parse_semi (cfile)) { |
2123 | *lose = 1; | |
79a65726 | 2124 | return 0; |
be6be08d | 2125 | } |
4bd8800e | 2126 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2127 | log_fatal ("no memory for new statement."); |
2128 | (*result) -> op = break_statement; | |
be6be08d TL |
2129 | break; |
2130 | ||
25541f2f | 2131 | case SEND: |
b3519f23 | 2132 | token = next_token (&val, (unsigned *)0, cfile); |
1898dcf7 | 2133 | known = 0; |
f7fdb216 DH |
2134 | status = parse_option_name (cfile, 0, &known, &option); |
2135 | if (status != ISC_R_SUCCESS || option == NULL) { | |
1898dcf7 TL |
2136 | *lose = 1; |
2137 | return 0; | |
2138 | } | |
f7fdb216 DH |
2139 | status = parse_option_statement(result, cfile, 1, option, |
2140 | send_option_statement); | |
2141 | option_dereference(&option, MDL); | |
2142 | return status; | |
25541f2f TL |
2143 | |
2144 | case SUPERSEDE: | |
be6be08d | 2145 | case OPTION: |
b3519f23 | 2146 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2147 | known = 0; |
f7fdb216 DH |
2148 | status = parse_option_name (cfile, 0, &known, &option); |
2149 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2150 | *lose = 1; |
79a65726 | 2151 | return 0; |
be6be08d | 2152 | } |
f7fdb216 DH |
2153 | status = parse_option_statement(result, cfile, 1, option, |
2154 | supersede_option_statement); | |
2155 | option_dereference(&option, MDL); | |
2156 | return status; | |
be6be08d | 2157 | |
b1013db7 | 2158 | case ALLOW: |
0776fd12 TL |
2159 | flag = 1; |
2160 | goto pad; | |
b1013db7 | 2161 | case DENY: |
0776fd12 TL |
2162 | flag = 0; |
2163 | goto pad; | |
2164 | case IGNORE: | |
2165 | flag = 2; | |
2166 | pad: | |
b3519f23 | 2167 | token = next_token (&val, (unsigned *)0, cfile); |
b1013db7 | 2168 | cache = (struct option_cache *)0; |
2db25842 | 2169 | if (!parse_allow_deny (&cache, cfile, flag)) |
79a65726 | 2170 | return 0; |
4bd8800e | 2171 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2172 | log_fatal ("no memory for new statement."); |
2173 | (*result) -> op = supersede_option_statement; | |
2174 | (*result) -> data.option = cache; | |
b1013db7 TL |
2175 | break; |
2176 | ||
be6be08d | 2177 | case DEFAULT: |
b3519f23 TL |
2178 | token = next_token (&val, (unsigned *)0, cfile); |
2179 | token = peek_token (&val, (unsigned *)0, cfile); | |
f579f39f TL |
2180 | if (token == COLON) |
2181 | goto switch_default; | |
b1b7b521 | 2182 | known = 0; |
f7fdb216 DH |
2183 | status = parse_option_name (cfile, 0, &known, &option); |
2184 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2185 | *lose = 1; |
79a65726 | 2186 | return 0; |
be6be08d | 2187 | } |
f7fdb216 DH |
2188 | status = parse_option_statement(result, cfile, 1, option, |
2189 | default_option_statement); | |
2190 | option_dereference(&option, MDL); | |
2191 | return status; | |
be6be08d TL |
2192 | |
2193 | case PREPEND: | |
b3519f23 | 2194 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2195 | known = 0; |
f7fdb216 DH |
2196 | status = parse_option_name (cfile, 0, &known, &option); |
2197 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2198 | *lose = 1; |
79a65726 | 2199 | return 0; |
be6be08d | 2200 | } |
f7fdb216 DH |
2201 | status = parse_option_statement(result, cfile, 1, option, |
2202 | prepend_option_statement); | |
2203 | option_dereference(&option, MDL); | |
2204 | return status; | |
be6be08d TL |
2205 | |
2206 | case APPEND: | |
b3519f23 | 2207 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2208 | known = 0; |
f7fdb216 DH |
2209 | status = parse_option_name (cfile, 0, &known, &option); |
2210 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2211 | *lose = 1; |
79a65726 | 2212 | return 0; |
be6be08d | 2213 | } |
f7fdb216 DH |
2214 | status = parse_option_statement(result, cfile, 1, option, |
2215 | append_option_statement); | |
2216 | option_dereference(&option, MDL); | |
2217 | return status; | |
be6be08d | 2218 | |
79a65726 | 2219 | case ON: |
b3519f23 | 2220 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
2221 | return parse_on_statement (result, cfile, lose); |
2222 | ||
f579f39f | 2223 | case SWITCH: |
b3519f23 | 2224 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2225 | return parse_switch_statement (result, cfile, lose); |
2226 | ||
2227 | case CASE: | |
b3519f23 | 2228 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2229 | if (case_context == context_any) { |
2230 | parse_warn (cfile, | |
2231 | "case statement in inappropriate scope."); | |
2232 | *lose = 1; | |
2233 | skip_to_semi (cfile); | |
2234 | return 0; | |
2235 | } | |
2236 | return parse_case_statement (result, | |
2237 | cfile, lose, case_context); | |
2238 | ||
2239 | switch_default: | |
b3519f23 | 2240 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2241 | if (case_context == context_any) { |
2242 | parse_warn (cfile, "switch default statement in %s", | |
2243 | "inappropriate scope."); | |
2244 | ||
2245 | *lose = 1; | |
2246 | return 0; | |
2247 | } else { | |
4bd8800e | 2248 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
2249 | log_fatal ("no memory for default statement."); |
2250 | (*result) -> op = default_statement; | |
2251 | return 1; | |
2252 | } | |
2253 | ||
31cb2a5f | 2254 | case DEFINE: |
f579f39f | 2255 | case TOKEN_SET: |
b3519f23 | 2256 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2257 | if (token == DEFINE) |
2258 | flag = 1; | |
2259 | else | |
2260 | flag = 0; | |
f579f39f | 2261 | |
b3519f23 | 2262 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2263 | if (token != NAME && token != NUMBER_OR_NAME) { |
2264 | parse_warn (cfile, | |
2265 | "%s can't be a variable name", val); | |
2266 | badset: | |
2267 | skip_to_semi (cfile); | |
2268 | *lose = 1; | |
2269 | return 0; | |
2270 | } | |
2271 | ||
4bd8800e | 2272 | if (!executable_statement_allocate (result, MDL)) |
f579f39f | 2273 | log_fatal ("no memory for set statement."); |
31cb2a5f | 2274 | (*result) -> op = flag ? define_statement : set_statement; |
fdac15d9 | 2275 | (*result) -> data.set.name = dmalloc (strlen (val) + 1, MDL); |
f579f39f TL |
2276 | if (!(*result)->data.set.name) |
2277 | log_fatal ("can't allocate variable name"); | |
2278 | strcpy ((*result) -> data.set.name, val); | |
b3519f23 | 2279 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f | 2280 | |
31cb2a5f TL |
2281 | if (token == LPAREN) { |
2282 | struct string_list *head, *cur, *new; | |
2283 | struct expression *expr; | |
2284 | head = cur = (struct string_list *)0; | |
2285 | do { | |
b3519f23 TL |
2286 | token = next_token (&val, |
2287 | (unsigned *)0, cfile); | |
31cb2a5f TL |
2288 | if (token == RPAREN) |
2289 | break; | |
2290 | if (token != NAME && token != NUMBER_OR_NAME) { | |
2291 | parse_warn (cfile, | |
2292 | "expecting argument name"); | |
2293 | skip_to_rbrace (cfile, 0); | |
2294 | *lose = 1; | |
2295 | executable_statement_dereference | |
2296 | (result, MDL); | |
2297 | return 0; | |
2298 | } | |
2299 | new = ((struct string_list *) | |
2300 | dmalloc (sizeof (struct string_list) + | |
2301 | strlen (val), MDL)); | |
2302 | if (!new) | |
2303 | log_fatal ("can't allocate string."); | |
2304 | memset (new, 0, sizeof *new); | |
2305 | strcpy (new -> string, val); | |
2306 | if (cur) { | |
2307 | cur -> next = new; | |
2308 | cur = new; | |
2309 | } else { | |
2310 | head = cur = new; | |
2311 | } | |
b3519f23 TL |
2312 | token = next_token (&val, |
2313 | (unsigned *)0, cfile); | |
31cb2a5f TL |
2314 | } while (token == COMMA); |
2315 | ||
2316 | if (token != RPAREN) { | |
2317 | parse_warn (cfile, "expecting right paren."); | |
2318 | badx: | |
2319 | skip_to_semi (cfile); | |
f579f39f | 2320 | *lose = 1; |
31cb2a5f TL |
2321 | executable_statement_dereference (result, MDL); |
2322 | return 0; | |
2323 | } | |
2324 | ||
b3519f23 | 2325 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2326 | if (token != LBRACE) { |
2327 | parse_warn (cfile, "expecting left brace."); | |
2328 | goto badx; | |
2329 | } | |
2330 | ||
2331 | expr = (struct expression *)0; | |
2332 | if (!(expression_allocate (&expr, MDL))) | |
2333 | log_fatal ("can't allocate expression."); | |
2334 | expr -> op = expr_function; | |
2335 | if (!fundef_allocate (&expr -> data.func, MDL)) | |
2336 | log_fatal ("can't allocate fundef."); | |
2337 | expr -> data.func -> args = head; | |
2338 | (*result) -> data.set.expr = expr; | |
2339 | ||
2340 | if (!(parse_executable_statements | |
2341 | (&expr -> data.func -> statements, cfile, lose, | |
2342 | case_context))) { | |
2343 | if (*lose) | |
2344 | goto badx; | |
2345 | } | |
2346 | ||
b3519f23 | 2347 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2348 | if (token != RBRACE) { |
2349 | parse_warn (cfile, "expecting rigt brace."); | |
2350 | goto badx; | |
2351 | } | |
2352 | } else { | |
2353 | if (token != EQUAL) { | |
2354 | parse_warn (cfile, | |
2355 | "expecting '=' in %s statement.", | |
2356 | flag ? "define" : "set"); | |
2357 | goto badset; | |
2358 | } | |
2359 | ||
2360 | if (!parse_expression (&(*result) -> data.set.expr, | |
2361 | cfile, lose, context_any, | |
2362 | (struct expression **)0, | |
2363 | expr_none)) { | |
2364 | if (!*lose) | |
2365 | parse_warn (cfile, | |
2366 | "expecting expression."); | |
2367 | else | |
2368 | *lose = 1; | |
2369 | skip_to_semi (cfile); | |
2370 | executable_statement_dereference (result, MDL); | |
2371 | return 0; | |
2372 | } | |
98311e4b DH |
2373 | if (!parse_semi (cfile)) { |
2374 | *lose = 1; | |
2375 | executable_statement_dereference (result, MDL); | |
2376 | return 0; | |
2377 | } | |
f579f39f | 2378 | } |
f579f39f TL |
2379 | break; |
2380 | ||
fdac15d9 | 2381 | case UNSET: |
b3519f23 | 2382 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 2383 | |
b3519f23 | 2384 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
2385 | if (token != NAME && token != NUMBER_OR_NAME) { |
2386 | parse_warn (cfile, | |
2387 | "%s can't be a variable name", val); | |
fdac15d9 TL |
2388 | skip_to_semi (cfile); |
2389 | *lose = 1; | |
2390 | return 0; | |
2391 | } | |
2392 | ||
4bd8800e | 2393 | if (!executable_statement_allocate (result, MDL)) |
fdac15d9 TL |
2394 | log_fatal ("no memory for set statement."); |
2395 | (*result) -> op = unset_statement; | |
2396 | (*result) -> data.unset = dmalloc (strlen (val) + 1, MDL); | |
2397 | if (!(*result)->data.unset) | |
2398 | log_fatal ("can't allocate variable name"); | |
2399 | strcpy ((*result) -> data.unset, val); | |
98311e4b DH |
2400 | if (!parse_semi (cfile)) { |
2401 | *lose = 1; | |
2402 | executable_statement_dereference (result, MDL); | |
2403 | return 0; | |
2404 | } | |
fdac15d9 TL |
2405 | break; |
2406 | ||
2407 | case EVAL: | |
b3519f23 | 2408 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 2409 | |
4bd8800e | 2410 | if (!executable_statement_allocate (result, MDL)) |
fdac15d9 TL |
2411 | log_fatal ("no memory for eval statement."); |
2412 | (*result) -> op = eval_statement; | |
2413 | ||
2414 | if (!parse_expression (&(*result) -> data.eval, | |
2415 | cfile, lose, context_data, /* XXX */ | |
2416 | (struct expression **)0, expr_none)) { | |
2417 | if (!*lose) | |
2418 | parse_warn (cfile, | |
2419 | "expecting data expression."); | |
2420 | else | |
2421 | *lose = 1; | |
2422 | skip_to_semi (cfile); | |
4bd8800e | 2423 | executable_statement_dereference (result, MDL); |
fdac15d9 TL |
2424 | return 0; |
2425 | } | |
98311e4b DH |
2426 | if (!parse_semi (cfile)) { |
2427 | *lose = 1; | |
2428 | executable_statement_dereference (result, MDL); | |
2429 | } | |
fdac15d9 TL |
2430 | break; |
2431 | ||
253c8b6a EH |
2432 | case EXECUTE: |
2433 | #ifdef ENABLE_EXECUTE | |
2434 | token = next_token(&val, NULL, cfile); | |
2435 | ||
2436 | if (!executable_statement_allocate (result, MDL)) | |
2437 | log_fatal ("no memory for execute statement."); | |
2438 | (*result)->op = execute_statement; | |
2439 | ||
2440 | token = next_token(&val, NULL, cfile); | |
2441 | if (token != LPAREN) { | |
2442 | parse_warn(cfile, "left parenthesis expected."); | |
2443 | skip_to_semi(cfile); | |
2444 | *lose = 1; | |
2445 | return 0; | |
2446 | } | |
2447 | ||
2448 | token = next_token(&val, &len, cfile); | |
2449 | if (token != STRING) { | |
2450 | parse_warn(cfile, "Expecting a quoted string."); | |
2451 | skip_to_semi(cfile); | |
2452 | *lose = 1; | |
2453 | return 0; | |
2454 | } | |
2455 | ||
2456 | (*result)->data.execute.command = dmalloc(len + 1, MDL); | |
2457 | if ((*result)->data.execute.command == NULL) | |
2458 | log_fatal("can't allocate command name"); | |
2459 | strcpy((*result)->data.execute.command, val); | |
2460 | ||
2461 | ep = &(*result)->data.execute.arglist; | |
2462 | (*result)->data.execute.argc = 0; | |
2463 | ||
2464 | while((token = next_token(&val, NULL, cfile)) == COMMA) { | |
2465 | if (!expression_allocate(ep, MDL)) | |
2466 | log_fatal ("can't allocate expression"); | |
2467 | ||
2468 | if (!parse_data_expression (&(*ep) -> data.arg.val, | |
2469 | cfile, lose)) { | |
2470 | if (!*lose) { | |
2471 | parse_warn (cfile, | |
2472 | "expecting expression."); | |
2473 | *lose = 1; | |
2474 | } | |
2475 | skip_to_semi(cfile); | |
2476 | *lose = 1; | |
2477 | return 0; | |
2478 | } | |
2479 | ep = &(*ep)->data.arg.next; | |
2480 | (*result)->data.execute.argc++; | |
2481 | } | |
2482 | ||
2483 | if (token != RPAREN) { | |
2484 | parse_warn(cfile, "right parenthesis expected."); | |
2485 | skip_to_semi(cfile); | |
2486 | *lose = 1; | |
2487 | return 0; | |
2488 | } | |
2489 | ||
2490 | if (!parse_semi (cfile)) { | |
2491 | *lose = 1; | |
2492 | executable_statement_dereference (result, MDL); | |
2493 | } | |
2494 | #else /* ! ENABLE_EXECUTE */ | |
2495 | parse_warn(cfile, "define ENABLE_EXECUTE in site.h to " | |
2496 | "enable execute(); expressions."); | |
2497 | skip_to_semi(cfile); | |
2498 | *lose = 1; | |
2499 | return 0; | |
2500 | #endif /* ENABLE_EXECUTE */ | |
2501 | break; | |
2502 | ||
1b234d44 | 2503 | case RETURN: |
b3519f23 | 2504 | token = next_token (&val, (unsigned *)0, cfile); |
1b234d44 DN |
2505 | |
2506 | if (!executable_statement_allocate (result, MDL)) | |
2507 | log_fatal ("no memory for return statement."); | |
2508 | (*result) -> op = return_statement; | |
2509 | ||
2510 | if (!parse_expression (&(*result) -> data.retval, | |
2511 | cfile, lose, context_data, | |
2512 | (struct expression **)0, expr_none)) { | |
2513 | if (!*lose) | |
2514 | parse_warn (cfile, | |
2515 | "expecting data expression."); | |
2516 | else | |
2517 | *lose = 1; | |
2518 | skip_to_semi (cfile); | |
2519 | executable_statement_dereference (result, MDL); | |
2520 | return 0; | |
2521 | } | |
98311e4b DH |
2522 | if (!parse_semi (cfile)) { |
2523 | *lose = 1; | |
2524 | executable_statement_dereference (result, MDL); | |
2525 | return 0; | |
2526 | } | |
1b234d44 DN |
2527 | break; |
2528 | ||
e7a9c293 | 2529 | case LOG: |
b3519f23 | 2530 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2531 | |
2532 | if (!executable_statement_allocate (result, MDL)) | |
2533 | log_fatal ("no memory for log statement."); | |
2534 | (*result) -> op = log_statement; | |
2535 | ||
b3519f23 | 2536 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2537 | if (token != LPAREN) { |
2538 | parse_warn (cfile, "left parenthesis expected."); | |
2539 | skip_to_semi (cfile); | |
2540 | *lose = 1; | |
2541 | return 0; | |
2542 | } | |
2543 | ||
b3519f23 | 2544 | token = peek_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2545 | i = 1; |
2546 | if (token == FATAL) { | |
2547 | (*result) -> data.log.priority = log_priority_fatal; | |
2548 | } else if (token == ERROR) { | |
2549 | (*result) -> data.log.priority = log_priority_error; | |
2550 | } else if (token == TOKEN_DEBUG) { | |
2551 | (*result) -> data.log.priority = log_priority_debug; | |
2552 | } else if (token == INFO) { | |
2553 | (*result) -> data.log.priority = log_priority_info; | |
2554 | } else { | |
2555 | (*result) -> data.log.priority = log_priority_debug; | |
2556 | i = 0; | |
2557 | } | |
2558 | if (i) { | |
b3519f23 TL |
2559 | token = next_token (&val, (unsigned *)0, cfile); |
2560 | token = next_token (&val, (unsigned *)0, cfile); | |
e7a9c293 DN |
2561 | if (token != COMMA) { |
2562 | parse_warn (cfile, "comma expected."); | |
2563 | skip_to_semi (cfile); | |
2564 | *lose = 1; | |
2565 | return 0; | |
2566 | } | |
2567 | } | |
2568 | ||
2569 | if (!(parse_data_expression | |
2570 | (&(*result) -> data.log.expr, cfile, lose))) { | |
2571 | skip_to_semi (cfile); | |
2572 | *lose = 1; | |
2573 | return 0; | |
2574 | } | |
2575 | ||
b3519f23 | 2576 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2577 | if (token != RPAREN) { |
2578 | parse_warn (cfile, "right parenthesis expected."); | |
2579 | skip_to_semi (cfile); | |
2580 | *lose = 1; | |
2581 | return 0; | |
2582 | } | |
2583 | ||
b3519f23 | 2584 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2585 | if (token != SEMI) { |
2586 | parse_warn (cfile, "semicolon expected."); | |
2587 | skip_to_semi (cfile); | |
2588 | *lose = 1; | |
2589 | return 0; | |
2590 | } | |
2591 | break; | |
5e864416 | 2592 | |
fa392aea TL |
2593 | /* Not really a statement, but we parse it here anyway |
2594 | because it's appropriate for all DHCP agents with | |
2595 | parsers. */ | |
2596 | case ZONE: | |
b3519f23 | 2597 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a | 2598 | zone = (struct dns_zone *)0; |
fa392aea TL |
2599 | if (!dns_zone_allocate (&zone, MDL)) |
2600 | log_fatal ("no memory for new zone."); | |
2601 | zone -> name = parse_host_name (cfile); | |
2602 | if (!zone -> name) { | |
e7a9c293 | 2603 | parse_warn (cfile, "expecting hostname."); |
98311e4b | 2604 | badzone: |
fa392aea TL |
2605 | *lose = 1; |
2606 | skip_to_semi (cfile); | |
2607 | dns_zone_dereference (&zone, MDL); | |
2608 | return 0; | |
2609 | } | |
88ab5737 TL |
2610 | i = strlen (zone -> name); |
2611 | if (zone -> name [i - 1] != '.') { | |
d758ad8c | 2612 | s = dmalloc ((unsigned)i + 2, MDL); |
98311e4b DH |
2613 | if (!s) { |
2614 | parse_warn (cfile, "no trailing '.' on zone"); | |
d758ad8c | 2615 | goto badzone; |
98311e4b | 2616 | } |
d758ad8c TL |
2617 | strcpy (s, zone -> name); |
2618 | s [i] = '.'; | |
2619 | s [i + 1] = 0; | |
2620 | dfree (zone -> name, MDL); | |
2621 | zone -> name = s; | |
88ab5737 | 2622 | } |
fa392aea TL |
2623 | if (!parse_zone (zone, cfile)) |
2624 | goto badzone; | |
fa392aea | 2625 | status = enter_dns_zone (zone); |
fa392aea | 2626 | if (status != ISC_R_SUCCESS) { |
98311e4b DH |
2627 | parse_warn (cfile, "dns zone key %s: %s", |
2628 | zone -> name, isc_result_totext (status)); | |
fa392aea TL |
2629 | dns_zone_dereference (&zone, MDL); |
2630 | return 0; | |
2631 | } | |
d758ad8c | 2632 | dns_zone_dereference (&zone, MDL); |
fa392aea TL |
2633 | return 1; |
2634 | ||
2635 | /* Also not really a statement, but same idea as above. */ | |
028b1f6a | 2636 | case KEY: |
b3519f23 | 2637 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a | 2638 | if (!parse_key (cfile)) { |
fa392aea | 2639 | *lose = 1; |
fa392aea TL |
2640 | return 0; |
2641 | } | |
028b1f6a | 2642 | return 1; |
e7a9c293 | 2643 | |
be6be08d | 2644 | default: |
588af269 | 2645 | if (config_universe && is_identifier (token)) { |
20916cae | 2646 | option = (struct option *)0; |
f7fdb216 DH |
2647 | option_name_hash_lookup(&option, |
2648 | config_universe->name_hash, | |
2649 | val, 0, MDL); | |
588af269 | 2650 | if (option) { |
b3519f23 TL |
2651 | token = next_token (&val, |
2652 | (unsigned *)0, cfile); | |
f7fdb216 DH |
2653 | status = parse_option_statement |
2654 | (result, cfile, 1, option, | |
2655 | supersede_option_statement); | |
2656 | option_dereference(&option, MDL); | |
2657 | return status; | |
588af269 TL |
2658 | } |
2659 | } | |
1b234d44 DN |
2660 | |
2661 | if (token == NUMBER_OR_NAME || token == NAME) { | |
2662 | /* This is rather ugly. Since function calls are | |
2663 | data expressions, fake up an eval statement. */ | |
2664 | if (!executable_statement_allocate (result, MDL)) | |
2665 | log_fatal ("no memory for eval statement."); | |
2666 | (*result) -> op = eval_statement; | |
2667 | ||
2668 | if (!parse_expression (&(*result) -> data.eval, | |
2669 | cfile, lose, context_data, | |
2670 | (struct expression **)0, | |
2671 | expr_none)) { | |
2672 | if (!*lose) | |
2673 | parse_warn (cfile, "expecting " | |
2674 | "function call."); | |
2675 | else | |
2676 | *lose = 1; | |
2677 | skip_to_semi (cfile); | |
2678 | executable_statement_dereference (result, MDL); | |
2679 | return 0; | |
2680 | } | |
98311e4b DH |
2681 | if (!parse_semi (cfile)) { |
2682 | *lose = 1; | |
2683 | executable_statement_dereference (result, MDL); | |
2684 | return 0; | |
2685 | } | |
1b234d44 DN |
2686 | break; |
2687 | } | |
2688 | ||
be6be08d | 2689 | *lose = 0; |
79a65726 | 2690 | return 0; |
be6be08d TL |
2691 | } |
2692 | ||
79a65726 TL |
2693 | return 1; |
2694 | } | |
2695 | ||
fa392aea TL |
2696 | /* zone-statements :== zone-statement | |
2697 | zone-statement zone-statements | |
2698 | zone-statement :== | |
2699 | PRIMARY ip-addresses SEMI | | |
2700 | SECONDARY ip-addresses SEMI | | |
028b1f6a TL |
2701 | key-reference SEMI |
2702 | ip-addresses :== ip-addr-or-hostname | | |
2703 | ip-addr-or-hostname COMMA ip-addresses | |
2704 | key-reference :== KEY STRING | | |
2705 | KEY identifier */ | |
fa392aea TL |
2706 | |
2707 | int parse_zone (struct dns_zone *zone, struct parse *cfile) | |
2708 | { | |
2709 | int token; | |
2710 | const char *val; | |
630786fc | 2711 | char *key_name; |
fa392aea TL |
2712 | struct option_cache *oc; |
2713 | int done = 0; | |
2714 | ||
b3519f23 | 2715 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2716 | if (token != LBRACE) { |
2717 | parse_warn (cfile, "expecting left brace"); | |
2718 | return 0; | |
2719 | } | |
2720 | ||
fa392aea | 2721 | do { |
b3519f23 | 2722 | token = peek_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2723 | switch (token) { |
2724 | case PRIMARY: | |
2725 | if (zone -> primary) { | |
2726 | parse_warn (cfile, | |
2727 | "more than one primary."); | |
2728 | skip_to_semi (cfile); | |
2729 | return 0; | |
2730 | } | |
2731 | if (!option_cache_allocate (&zone -> primary, MDL)) | |
2732 | log_fatal ("can't allocate primary option cache."); | |
2733 | oc = zone -> primary; | |
2734 | goto consemup; | |
2735 | ||
2736 | case SECONDARY: | |
2737 | if (zone -> secondary) { | |
2738 | parse_warn (cfile, "more than one secondary."); | |
2739 | skip_to_semi (cfile); | |
2740 | return 0; | |
2741 | } | |
2742 | if (!option_cache_allocate (&zone -> secondary, MDL)) | |
2743 | log_fatal ("can't allocate secondary."); | |
2744 | oc = zone -> secondary; | |
2745 | consemup: | |
b3519f23 | 2746 | token = next_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2747 | do { |
2748 | struct expression *expr = (struct expression *)0; | |
2749 | if (!parse_ip_addr_or_hostname (&expr, cfile, 0)) { | |
2750 | parse_warn (cfile, | |
2751 | "expecting IP addr or hostname."); | |
2752 | skip_to_semi (cfile); | |
2753 | return 0; | |
2754 | } | |
2755 | if (oc -> expression) { | |
2756 | struct expression *old = | |
2757 | (struct expression *)0; | |
2758 | expression_reference (&old, | |
2759 | oc -> expression, | |
2760 | MDL); | |
2761 | expression_dereference (&oc -> expression, | |
2762 | MDL); | |
2763 | if (!make_concat (&oc -> expression, | |
2764 | old, expr)) | |
2765 | log_fatal ("no memory for concat."); | |
2766 | expression_dereference (&expr, MDL); | |
2767 | expression_dereference (&old, MDL); | |
2768 | } else { | |
2769 | expression_reference (&oc -> expression, | |
2770 | expr, MDL); | |
2771 | expression_dereference (&expr, MDL); | |
2772 | } | |
b3519f23 | 2773 | token = next_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2774 | } while (token == COMMA); |
2775 | if (token != SEMI) { | |
2776 | parse_warn (cfile, "expecting semicolon."); | |
2777 | skip_to_semi (cfile); | |
2778 | return 0; | |
2779 | } | |
2780 | break; | |
2781 | ||
028b1f6a | 2782 | case KEY: |
b3519f23 TL |
2783 | token = next_token (&val, (unsigned *)0, cfile); |
2784 | token = peek_token (&val, (unsigned *)0, cfile); | |
630786fc | 2785 | if (token == STRING) { |
b3519f23 | 2786 | token = next_token (&val, (unsigned *)0, cfile); |
630786fc TL |
2787 | key_name = (char *)0; |
2788 | } else { | |
2789 | key_name = parse_host_name (cfile); | |
b49c02cc TL |
2790 | if (!key_name) { |
2791 | parse_warn (cfile, "expecting key name."); | |
2792 | skip_to_semi (cfile); | |
630786fc | 2793 | return 0; |
b49c02cc | 2794 | } |
630786fc | 2795 | val = key_name; |
fa392aea | 2796 | } |
49146f3c DN |
2797 | if (omapi_auth_key_lookup_name (&zone -> key, val) != |
2798 | ISC_R_SUCCESS) | |
fa392aea | 2799 | parse_warn (cfile, "unknown key %s", val); |
630786fc TL |
2800 | if (key_name) |
2801 | dfree (key_name, MDL); | |
fa392aea TL |
2802 | if (!parse_semi (cfile)) |
2803 | return 0; | |
2804 | break; | |
2805 | ||
2806 | default: | |
2807 | done = 1; | |
2808 | break; | |
2809 | } | |
2810 | } while (!done); | |
2811 | ||
b3519f23 | 2812 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2813 | if (token != RBRACE) { |
2814 | parse_warn (cfile, "expecting right brace."); | |
2815 | return 0; | |
2816 | } | |
fa392aea TL |
2817 | return 1; |
2818 | } | |
2819 | ||
028b1f6a TL |
2820 | /* key-statements :== key-statement | |
2821 | key-statement key-statements | |
2822 | key-statement :== | |
2823 | ALGORITHM host-name SEMI | | |
2824 | secret-definition SEMI | |
2825 | secret-definition :== SECRET base64val | | |
2826 | SECRET STRING */ | |
2827 | ||
2828 | int parse_key (struct parse *cfile) | |
2829 | { | |
2830 | int token; | |
2831 | const char *val; | |
2832 | int done = 0; | |
49146f3c DN |
2833 | struct auth_key *key; |
2834 | struct data_string ds; | |
028b1f6a | 2835 | isc_result_t status; |
2f98b84e | 2836 | char *s; |
028b1f6a | 2837 | |
49146f3c DN |
2838 | key = (struct auth_key *)0; |
2839 | if (omapi_auth_key_new (&key, MDL) != ISC_R_SUCCESS) | |
630786fc TL |
2840 | log_fatal ("no memory for key"); |
2841 | ||
b3519f23 | 2842 | token = peek_token (&val, (unsigned *)0, cfile); |
630786fc | 2843 | if (token == STRING) { |
b3519f23 | 2844 | token = next_token (&val, (unsigned *)0, cfile); |
630786fc TL |
2845 | key -> name = dmalloc (strlen (val) + 1, MDL); |
2846 | if (!key -> name) | |
2847 | log_fatal ("no memory for key name."); | |
2848 | strcpy (key -> name, val); | |
2849 | ||
2850 | } else { | |
2851 | key -> name = parse_host_name (cfile); | |
2852 | if (!key -> name) { | |
b49c02cc | 2853 | parse_warn (cfile, "expecting key name."); |
630786fc TL |
2854 | skip_to_semi (cfile); |
2855 | goto bad; | |
2856 | } | |
2857 | } | |
028b1f6a | 2858 | |
b3519f23 | 2859 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2860 | if (token != LBRACE) { |
2861 | parse_warn (cfile, "expecting left brace"); | |
630786fc | 2862 | goto bad; |
028b1f6a TL |
2863 | } |
2864 | ||
2865 | do { | |
b3519f23 | 2866 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2867 | switch (token) { |
2868 | case ALGORITHM: | |
2869 | if (key -> algorithm) { | |
2870 | parse_warn (cfile, | |
2871 | "key %s: too many algorithms", | |
2872 | key -> name); | |
2873 | goto rbad; | |
2874 | } | |
2875 | key -> algorithm = parse_host_name (cfile); | |
2876 | if (!key -> algorithm) { | |
2877 | parse_warn (cfile, | |
2878 | "expecting key algorithm name."); | |
2879 | goto rbad; | |
2880 | } | |
2881 | if (!parse_semi (cfile)) | |
2882 | goto rbad; | |
2f98b84e TL |
2883 | /* If the algorithm name isn't an FQDN, tack on |
2884 | the .SIG-ALG.REG.NET. domain. */ | |
35155613 | 2885 | s = strrchr (key -> algorithm, '.'); |
2f98b84e | 2886 | if (!s) { |
35155613 TL |
2887 | static char add [] = ".SIG-ALG.REG.INT."; |
2888 | s = dmalloc (strlen (key -> algorithm) + | |
2889 | sizeof (add), MDL); | |
2890 | if (!s) { | |
2891 | log_error ("no memory for key %s.", | |
2892 | "algorithm"); | |
2893 | goto rbad; | |
2894 | } | |
2895 | strcpy (s, key -> algorithm); | |
2896 | strcat (s, add); | |
2897 | dfree (key -> algorithm, MDL); | |
2898 | key -> algorithm = s; | |
2899 | } else if (s [1]) { | |
2900 | /* If there is no trailing '.', hack one in. */ | |
2901 | s = dmalloc (strlen (key -> algorithm) + 2, MDL); | |
2902 | if (!s) { | |
2903 | log_error ("no memory for key %s.", | |
2904 | key -> algorithm); | |
2905 | goto rbad; | |
2906 | } | |
2907 | strcpy (s, key -> algorithm); | |
2908 | strcat (s, "."); | |
2909 | dfree (key -> algorithm, MDL); | |
2910 | key -> algorithm = s; | |
2f98b84e | 2911 | } |
028b1f6a TL |
2912 | break; |
2913 | ||
2914 | case SECRET: | |
49146f3c | 2915 | if (key -> key) { |
028b1f6a TL |
2916 | parse_warn (cfile, "key %s: too many secrets", |
2917 | key -> name); | |
2918 | goto rbad; | |
2919 | } | |
49146f3c DN |
2920 | |
2921 | memset (&ds, 0, sizeof(ds)); | |
2922 | if (!parse_base64 (&ds, cfile)) | |
2923 | goto rbad; | |
2924 | status = omapi_data_string_new (&key -> key, ds.len, | |
2925 | MDL); | |
2926 | if (status != ISC_R_SUCCESS) | |
028b1f6a | 2927 | goto rbad; |
49146f3c DN |
2928 | memcpy (key -> key -> value, |
2929 | ds.buffer -> data, ds.len); | |
2930 | data_string_forget (&ds, MDL); | |
2931 | ||
028b1f6a TL |
2932 | if (!parse_semi (cfile)) |
2933 | goto rbad; | |
2934 | break; | |
2935 | ||
2936 | default: | |
2937 | done = 1; | |
2938 | break; | |
2939 | } | |
2940 | } while (!done); | |
2941 | if (token != RBRACE) { | |
2942 | parse_warn (cfile, "expecting right brace."); | |
2943 | goto rbad; | |
2944 | } | |
13b0934e TL |
2945 | /* Allow the BIND 8 syntax, which has a semicolon after each |
2946 | closing brace. */ | |
b3519f23 | 2947 | token = peek_token (&val, (unsigned *)0, cfile); |
13b0934e | 2948 | if (token == SEMI) |
b3519f23 | 2949 | token = next_token (&val, (unsigned *)0, cfile); |
13b0934e TL |
2950 | |
2951 | /* Remember the key. */ | |
49146f3c | 2952 | status = omapi_auth_key_enter (key); |
028b1f6a TL |
2953 | if (status != ISC_R_SUCCESS) { |
2954 | parse_warn (cfile, "tsig key %s: %s", | |
2955 | key -> name, isc_result_totext (status)); | |
2956 | goto bad; | |
2957 | } | |
d758ad8c | 2958 | omapi_auth_key_dereference (&key, MDL); |
028b1f6a TL |
2959 | return 1; |
2960 | ||
2961 | rbad: | |
2962 | skip_to_rbrace (cfile, 1); | |
2963 | bad: | |
49146f3c | 2964 | omapi_auth_key_dereference (&key, MDL); |
028b1f6a TL |
2965 | return 0; |
2966 | } | |
630786fc | 2967 | |
79a65726 | 2968 | /* |
f579f39f TL |
2969 | * on-statement :== event-types LBRACE executable-statements RBRACE |
2970 | * event-types :== event-type OR event-types | | |
2971 | * event-type | |
79a65726 TL |
2972 | * event-type :== EXPIRY | COMMIT | RELEASE |
2973 | */ | |
2974 | ||
2975 | int parse_on_statement (result, cfile, lose) | |
2976 | struct executable_statement **result; | |
4615d498 | 2977 | struct parse *cfile; |
79a65726 TL |
2978 | int *lose; |
2979 | { | |
2980 | enum dhcp_token token; | |
b1b7b521 | 2981 | const char *val; |
79a65726 | 2982 | |
4bd8800e | 2983 | if (!executable_statement_allocate (result, MDL)) |
8ae2d595 | 2984 | log_fatal ("no memory for new statement."); |
33500c7d | 2985 | (*result) -> op = on_statement; |
79a65726 | 2986 | |
f579f39f | 2987 | do { |
b3519f23 | 2988 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2989 | switch (token) { |
2990 | case EXPIRY: | |
2991 | (*result) -> data.on.evtypes |= ON_EXPIRY; | |
2992 | break; | |
79a65726 | 2993 | |
f579f39f | 2994 | case COMMIT: |
fdac15d9 | 2995 | (*result) -> data.on.evtypes |= ON_COMMIT; |
f579f39f TL |
2996 | break; |
2997 | ||
2998 | case RELEASE: | |
fdac15d9 | 2999 | (*result) -> data.on.evtypes |= ON_RELEASE; |
f579f39f TL |
3000 | break; |
3001 | ||
b49c02cc TL |
3002 | case TRANSMISSION: |
3003 | (*result) -> data.on.evtypes |= ON_TRANSMISSION; | |
3004 | break; | |
3005 | ||
f579f39f TL |
3006 | default: |
3007 | parse_warn (cfile, "expecting a lease event type"); | |
3008 | skip_to_semi (cfile); | |
3009 | *lose = 1; | |
4bd8800e | 3010 | executable_statement_dereference (result, MDL); |
fdac15d9 | 3011 | return 0; |
f579f39f | 3012 | } |
b3519f23 | 3013 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f | 3014 | } while (token == OR); |
79a65726 | 3015 | |
f579f39f TL |
3016 | /* Semicolon means no statements. */ |
3017 | if (token == SEMI) | |
3018 | return 1; | |
3019 | ||
79a65726 | 3020 | if (token != LBRACE) { |
4615d498 | 3021 | parse_warn (cfile, "left brace expected."); |
79a65726 TL |
3022 | skip_to_semi (cfile); |
3023 | *lose = 1; | |
4bd8800e | 3024 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3025 | return 0; |
3026 | } | |
3027 | if (!parse_executable_statements (&(*result) -> data.on.statements, | |
f579f39f | 3028 | cfile, lose, context_any)) { |
79a65726 TL |
3029 | if (*lose) { |
3030 | /* Try to even things up. */ | |
3031 | do { | |
b3519f23 TL |
3032 | token = next_token (&val, |
3033 | (unsigned *)0, cfile); | |
0b69dcc8 | 3034 | } while (token != END_OF_FILE && token != RBRACE); |
4bd8800e | 3035 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3036 | return 0; |
3037 | } | |
3038 | } | |
b3519f23 | 3039 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 | 3040 | if (token != RBRACE) { |
4615d498 | 3041 | parse_warn (cfile, "right brace expected."); |
79a65726 TL |
3042 | skip_to_semi (cfile); |
3043 | *lose = 1; | |
4bd8800e | 3044 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3045 | return 0; |
3046 | } | |
3047 | return 1; | |
be6be08d TL |
3048 | } |
3049 | ||
f579f39f TL |
3050 | /* |
3051 | * switch-statement :== LPAREN expr RPAREN LBRACE executable-statements RBRACE | |
3052 | * | |
3053 | */ | |
3054 | ||
3055 | int parse_switch_statement (result, cfile, lose) | |
3056 | struct executable_statement **result; | |
3057 | struct parse *cfile; | |
3058 | int *lose; | |
3059 | { | |
3060 | enum dhcp_token token; | |
3061 | const char *val; | |
3062 | ||
4bd8800e | 3063 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
3064 | log_fatal ("no memory for new statement."); |
3065 | (*result) -> op = switch_statement; | |
3066 | ||
b3519f23 | 3067 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3068 | if (token != LPAREN) { |
3069 | parse_warn (cfile, "expecting left brace."); | |
3070 | pfui: | |
3071 | *lose = 1; | |
3072 | skip_to_semi (cfile); | |
3073 | gnorf: | |
4bd8800e | 3074 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3075 | return 0; |
3076 | } | |
3077 | ||
3078 | if (!parse_expression (&(*result) -> data.s_switch.expr, | |
3079 | cfile, lose, context_data_or_numeric, | |
3080 | (struct expression **)0, expr_none)) { | |
3081 | if (!*lose) { | |
3082 | parse_warn (cfile, | |
3083 | "expecting data or numeric expression."); | |
3084 | goto pfui; | |
3085 | } | |
3086 | goto gnorf; | |
3087 | } | |
3088 | ||
b3519f23 | 3089 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3090 | if (token != RPAREN) { |
3091 | parse_warn (cfile, "right paren expected."); | |
3092 | goto pfui; | |
3093 | } | |
3094 | ||
b3519f23 | 3095 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3096 | if (token != LBRACE) { |
3097 | parse_warn (cfile, "left brace expected."); | |
3098 | goto pfui; | |
3099 | } | |
3100 | if (!(parse_executable_statements | |
3101 | (&(*result) -> data.s_switch.statements, cfile, lose, | |
3102 | (is_data_expression ((*result) -> data.s_switch.expr) | |
3103 | ? context_data : context_numeric)))) { | |
3104 | if (*lose) { | |
3105 | skip_to_rbrace (cfile, 1); | |
4bd8800e | 3106 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3107 | return 0; |
3108 | } | |
3109 | } | |
b3519f23 | 3110 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3111 | if (token != RBRACE) { |
3112 | parse_warn (cfile, "right brace expected."); | |
3113 | goto pfui; | |
3114 | } | |
3115 | return 1; | |
3116 | } | |
3117 | ||
3118 | /* | |
3119 | * case-statement :== CASE expr COLON | |
3120 | * | |
3121 | */ | |
3122 | ||
3123 | int parse_case_statement (result, cfile, lose, case_context) | |
3124 | struct executable_statement **result; | |
3125 | struct parse *cfile; | |
3126 | int *lose; | |
3127 | enum expression_context case_context; | |
3128 | { | |
3129 | enum dhcp_token token; | |
3130 | const char *val; | |
3131 | ||
4bd8800e | 3132 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
3133 | log_fatal ("no memory for new statement."); |
3134 | (*result) -> op = case_statement; | |
3135 | ||
3136 | if (!parse_expression (&(*result) -> data.c_case, | |
3137 | cfile, lose, case_context, | |
3138 | (struct expression **)0, expr_none)) | |
3139 | { | |
3140 | if (!*lose) { | |
3141 | parse_warn (cfile, "expecting %s expression.", | |
3142 | (case_context == context_data | |
3143 | ? "data" : "numeric")); | |
3144 | } | |
3145 | pfui: | |
3146 | *lose = 1; | |
3147 | skip_to_semi (cfile); | |
4bd8800e | 3148 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3149 | return 0; |
3150 | } | |
3151 | ||
b3519f23 | 3152 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3153 | if (token != COLON) { |
3154 | parse_warn (cfile, "colon expected."); | |
3155 | goto pfui; | |
3156 | } | |
3157 | return 1; | |
3158 | } | |
3159 | ||
be6be08d TL |
3160 | /* |
3161 | * if-statement :== boolean-expression LBRACE executable-statements RBRACE | |
3162 | * else-statement | |
3163 | * | |
3164 | * else-statement :== <null> | | |
3165 | * ELSE LBRACE executable-statements RBRACE | | |
3166 | * ELSE IF if-statement | | |
3167 | * ELSIF if-statement | |
3168 | */ | |
3169 | ||
79a65726 TL |
3170 | int parse_if_statement (result, cfile, lose) |
3171 | struct executable_statement **result; | |
4615d498 | 3172 | struct parse *cfile; |
be6be08d TL |
3173 | int *lose; |
3174 | { | |
02a015fb | 3175 | enum dhcp_token token; |
b1b7b521 | 3176 | const char *val; |
fdac15d9 | 3177 | int parenp; |
be6be08d | 3178 | |
4bd8800e | 3179 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
3180 | log_fatal ("no memory for if statement."); |
3181 | ||
3182 | (*result) -> op = if_statement; | |
3183 | ||
b3519f23 | 3184 | token = peek_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3185 | if (token == LPAREN) { |
3186 | parenp = 1; | |
b3519f23 | 3187 | next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3188 | } else |
3189 | parenp = 0; | |
3190 | ||
3191 | ||
79a65726 TL |
3192 | if (!parse_boolean_expression (&(*result) -> data.ie.expr, |
3193 | cfile, lose)) { | |
be6be08d | 3194 | if (!*lose) |
4615d498 | 3195 | parse_warn (cfile, "boolean expression expected."); |
4bd8800e | 3196 | executable_statement_dereference (result, MDL); |
166e63eb | 3197 | *lose = 1; |
79a65726 | 3198 | return 0; |
be6be08d | 3199 | } |
02a015fb | 3200 | #if defined (DEBUG_EXPRESSION_PARSE) |
7b01f134 | 3201 | print_expression ("if condition", (*result) -> data.ie.expr); |
02a015fb | 3202 | #endif |
fdac15d9 | 3203 | if (parenp) { |
b3519f23 | 3204 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3205 | if (token != RPAREN) { |
3206 | parse_warn (cfile, "expecting right paren."); | |
3207 | *lose = 1; | |
4bd8800e | 3208 | executable_statement_dereference (result, MDL); |
fdac15d9 TL |
3209 | return 0; |
3210 | } | |
3211 | } | |
b3519f23 | 3212 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 3213 | if (token != LBRACE) { |
4615d498 | 3214 | parse_warn (cfile, "left brace expected."); |
be6be08d TL |
3215 | skip_to_semi (cfile); |
3216 | *lose = 1; | |
4bd8800e | 3217 | executable_statement_dereference (result, MDL); |
79a65726 | 3218 | return 0; |
be6be08d | 3219 | } |
d758ad8c | 3220 | if (!parse_executable_statements (&(*result) -> data.ie.tc, |
f579f39f | 3221 | cfile, lose, context_any)) { |
79a65726 TL |
3222 | if (*lose) { |
3223 | /* Try to even things up. */ | |
3224 | do { | |
b3519f23 TL |
3225 | token = next_token (&val, |
3226 | (unsigned *)0, cfile); | |
0b69dcc8 | 3227 | } while (token != END_OF_FILE && token != RBRACE); |
4bd8800e | 3228 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3229 | return 0; |
3230 | } | |
efc79acb | 3231 | } |
b3519f23 | 3232 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 3233 | if (token != RBRACE) { |
4615d498 | 3234 | parse_warn (cfile, "right brace expected."); |
be6be08d TL |
3235 | skip_to_semi (cfile); |
3236 | *lose = 1; | |
4bd8800e | 3237 | executable_statement_dereference (result, MDL); |
79a65726 | 3238 | return 0; |
be6be08d | 3239 | } |
b3519f23 | 3240 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d | 3241 | if (token == ELSE) { |
b3519f23 TL |
3242 | token = next_token (&val, (unsigned *)0, cfile); |
3243 | token = peek_token (&val, (unsigned *)0, cfile); | |
be6be08d | 3244 | if (token == IF) { |
b3519f23 | 3245 | token = next_token (&val, (unsigned *)0, cfile); |
d758ad8c | 3246 | if (!parse_if_statement (&(*result) -> data.ie.fc, |
79a65726 | 3247 | cfile, lose)) { |
166e63eb TL |
3248 | if (!*lose) |
3249 | parse_warn (cfile, | |
4bd8800e TL |
3250 | "expecting if statement"); |
3251 | executable_statement_dereference (result, MDL); | |
166e63eb TL |
3252 | *lose = 1; |
3253 | return 0; | |
79a65726 | 3254 | } |
be6be08d | 3255 | } else if (token != LBRACE) { |
4615d498 | 3256 | parse_warn (cfile, "left brace or if expected."); |
be6be08d TL |
3257 | skip_to_semi (cfile); |
3258 | *lose = 1; | |
4bd8800e | 3259 | executable_statement_dereference (result, MDL); |
79a65726 | 3260 | return 0; |
be6be08d | 3261 | } else { |
b3519f23 | 3262 | token = next_token (&val, (unsigned *)0, cfile); |
33500c7d | 3263 | if (!(parse_executable_statements |
d758ad8c | 3264 | (&(*result) -> data.ie.fc, |
f579f39f | 3265 | cfile, lose, context_any))) { |
4bd8800e | 3266 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3267 | return 0; |
3268 | } | |
b3519f23 | 3269 | token = next_token (&val, (unsigned *)0, cfile); |
25541f2f | 3270 | if (token != RBRACE) { |
4615d498 | 3271 | parse_warn (cfile, "right brace expected."); |
25541f2f TL |
3272 | skip_to_semi (cfile); |
3273 | *lose = 1; | |
4bd8800e | 3274 | executable_statement_dereference (result, MDL); |
79a65726 | 3275 | return 0; |
25541f2f | 3276 | } |
be6be08d TL |
3277 | } |
3278 | } else if (token == ELSIF) { | |
b3519f23 | 3279 | token = next_token (&val, (unsigned *)0, cfile); |
d758ad8c | 3280 | if (!parse_if_statement (&(*result) -> data.ie.fc, |
79a65726 | 3281 | cfile, lose)) { |
166e63eb TL |
3282 | if (!*lose) |
3283 | parse_warn (cfile, | |
3284 | "expecting conditional."); | |
4bd8800e | 3285 | executable_statement_dereference (result, MDL); |
166e63eb TL |
3286 | *lose = 1; |
3287 | return 0; | |
79a65726 | 3288 | } |
be6be08d | 3289 | } else |
d758ad8c | 3290 | (*result) -> data.ie.fc = (struct executable_statement *)0; |
be6be08d | 3291 | |
79a65726 | 3292 | return 1; |
be6be08d TL |
3293 | } |
3294 | ||
3295 | /* | |
3296 | * boolean_expression :== CHECK STRING | | |
3297 | * NOT boolean-expression | | |
3298 | * data-expression EQUAL data-expression | | |
2b965a44 | 3299 | * data-expression BANG EQUAL data-expression | |
dd328225 | 3300 | * data-expression REGEX_MATCH data-expression | |
be6be08d TL |
3301 | * boolean-expression AND boolean-expression | |
3302 | * boolean-expression OR boolean-expression | |
02a015fb | 3303 | * EXISTS OPTION-NAME |
be6be08d TL |
3304 | */ |
3305 | ||
02a015fb TL |
3306 | int parse_boolean_expression (expr, cfile, lose) |
3307 | struct expression **expr; | |
4615d498 | 3308 | struct parse *cfile; |
02a015fb TL |
3309 | int *lose; |
3310 | { | |
3311 | /* Parse an expression... */ | |
3312 | if (!parse_expression (expr, cfile, lose, context_boolean, | |
3313 | (struct expression **)0, expr_none)) | |
3314 | return 0; | |
3315 | ||
08514fb8 TL |
3316 | if (!is_boolean_expression (*expr) && |
3317 | (*expr) -> op != expr_variable_reference && | |
3318 | (*expr) -> op != expr_funcall) { | |
4615d498 | 3319 | parse_warn (cfile, "Expecting a boolean expression."); |
02a015fb | 3320 | *lose = 1; |
4bd8800e | 3321 | expression_dereference (expr, MDL); |
02a015fb TL |
3322 | return 0; |
3323 | } | |
3324 | return 1; | |
3325 | } | |
3326 | ||
d15aa964 TM |
3327 | /* boolean :== ON SEMI | OFF SEMI | TRUE SEMI | FALSE SEMI */ |
3328 | ||
3329 | int parse_boolean (cfile) | |
3330 | struct parse *cfile; | |
3331 | { | |
3332 | enum dhcp_token token; | |
3333 | const char *val; | |
3334 | int rv; | |
3335 | ||
3336 | token = next_token (&val, (unsigned *)0, cfile); | |
3337 | if (!strcasecmp (val, "true") | |
3338 | || !strcasecmp (val, "on")) | |
3339 | rv = 1; | |
3340 | else if (!strcasecmp (val, "false") | |
3341 | || !strcasecmp (val, "off")) | |
3342 | rv = 0; | |
3343 | else { | |
3344 | parse_warn (cfile, | |
3345 | "boolean value (true/false/on/off) expected"); | |
3346 | skip_to_semi (cfile); | |
3347 | return 0; | |
3348 | } | |
3349 | parse_semi (cfile); | |
3350 | return rv; | |
3351 | } | |
3352 | ||
3353 | ||
02a015fb TL |
3354 | /* |
3355 | * data_expression :== SUBSTRING LPAREN data-expression COMMA | |
3356 | * numeric-expression COMMA | |
3357 | * numeric-expression RPAREN | | |
a82abfc7 | 3358 | * CONCAT LPAREN data-expression COMMA |
2727c1cf | 3359 | * data-expression RPAREN |
02a015fb | 3360 | * SUFFIX LPAREN data_expression COMMA |
a82abfc7 | 3361 | * numeric-expression RPAREN | |
2727c1cf DH |
3362 | * LCASE LPAREN data_expression RPAREN | |
3363 | * UCASE LPAREN data_expression RPAREN | | |
02a015fb TL |
3364 | * OPTION option_name | |
3365 | * HARDWARE | | |
3366 | * PACKET LPAREN numeric-expression COMMA | |
3367 | * numeric-expression RPAREN | | |
3368 | * STRING | | |
c57db45c | 3369 | * colon_separated_hex_list |
02a015fb TL |
3370 | */ |
3371 | ||
3372 | int parse_data_expression (expr, cfile, lose) | |
3373 | struct expression **expr; | |
4615d498 | 3374 | struct parse *cfile; |
02a015fb TL |
3375 | int *lose; |
3376 | { | |
3377 | /* Parse an expression... */ | |
3378 | if (!parse_expression (expr, cfile, lose, context_data, | |
3379 | (struct expression **)0, expr_none)) | |
3380 | return 0; | |
3381 | ||
08514fb8 TL |
3382 | if (!is_data_expression (*expr) && |
3383 | (*expr) -> op != expr_variable_reference && | |
3384 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3385 | expression_dereference (expr, MDL); |
4615d498 | 3386 | parse_warn (cfile, "Expecting a data expression."); |
02a015fb TL |
3387 | *lose = 1; |
3388 | return 0; | |
3389 | } | |
3390 | return 1; | |
3391 | } | |
3392 | ||
3393 | /* | |
3394 | * numeric-expression :== EXTRACT_INT LPAREN data-expression | |
3395 | * COMMA number RPAREN | | |
3396 | * NUMBER | |
3397 | */ | |
3398 | ||
3399 | int parse_numeric_expression (expr, cfile, lose) | |
3400 | struct expression **expr; | |
4615d498 | 3401 | struct parse *cfile; |
02a015fb TL |
3402 | int *lose; |
3403 | { | |
3404 | /* Parse an expression... */ | |
3405 | if (!parse_expression (expr, cfile, lose, context_numeric, | |
3406 | (struct expression **)0, expr_none)) | |
3407 | return 0; | |
3408 | ||
08514fb8 TL |
3409 | if (!is_numeric_expression (*expr) && |
3410 | (*expr) -> op != expr_variable_reference && | |
3411 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3412 | expression_dereference (expr, MDL); |
4615d498 | 3413 | parse_warn (cfile, "Expecting a numeric expression."); |
02a015fb TL |
3414 | *lose = 1; |
3415 | return 0; | |
3416 | } | |
3417 | return 1; | |
3418 | } | |
98bf1607 | 3419 | #if defined (NSUPDATE_OLD) |
9fb2fb28 TL |
3420 | /* |
3421 | * dns-expression :== | |
3422 | * UPDATE LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3423 | * data-expression COMMA numeric-expression RPAREN | |
3424 | * DELETE LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3425 | * data-expression RPAREN | |
3426 | * EXISTS LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3427 | * data-expression RPAREN | |
3428 | * NOT EXISTS LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3429 | * data-expression RPAREN | |
3430 | * ns-class :== IN | CHAOS | HS | NUMBER | |
3431 | * ns-type :== A | PTR | MX | TXT | NUMBER | |
3432 | */ | |
3433 | ||
3434 | int parse_dns_expression (expr, cfile, lose) | |
3435 | struct expression **expr; | |
3436 | struct parse *cfile; | |
3437 | int *lose; | |
3438 | { | |
3439 | /* Parse an expression... */ | |
3440 | if (!parse_expression (expr, cfile, lose, context_dns, | |
3441 | (struct expression **)0, expr_none)) | |
3442 | return 0; | |
3443 | ||
08514fb8 TL |
3444 | if (!is_dns_expression (*expr) && |
3445 | (*expr) -> op != expr_variable_reference && | |
3446 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3447 | expression_dereference (expr, MDL); |
9fb2fb28 TL |
3448 | parse_warn (cfile, "Expecting a dns update subexpression."); |
3449 | *lose = 1; | |
3450 | return 0; | |
3451 | } | |
3452 | return 1; | |
3453 | } | |
98bf1607 | 3454 | #endif /* NSUPDATE_OLD */ |
02a015fb | 3455 | /* Parse a subexpression that does not contain a binary operator. */ |
be6be08d | 3456 | |
02a015fb TL |
3457 | int parse_non_binary (expr, cfile, lose, context) |
3458 | struct expression **expr; | |
4615d498 | 3459 | struct parse *cfile; |
be6be08d | 3460 | int *lose; |
02a015fb | 3461 | enum expression_context context; |
be6be08d | 3462 | { |
02a015fb | 3463 | enum dhcp_token token; |
b1b7b521 | 3464 | const char *val; |
be6be08d | 3465 | struct collection *col; |
08514fb8 | 3466 | struct expression *nexp, **ep; |
b1b7b521 | 3467 | int known; |
98bf1607 SR |
3468 | char *cptr; |
3469 | #if defined (NSUPDATE_OLD) | |
9fb2fb28 | 3470 | enum expr_op opcode; |
f579f39f | 3471 | const char *s; |
08514fb8 | 3472 | unsigned long u; |
98bf1607 | 3473 | #endif |
28868515 | 3474 | isc_result_t status; |
b3519f23 | 3475 | unsigned len; |
be6be08d | 3476 | |
b3519f23 | 3477 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3478 | |
3479 | /* Check for unary operators... */ | |
3480 | switch (token) { | |
3481 | case CHECK: | |
b3519f23 TL |
3482 | token = next_token (&val, (unsigned *)0, cfile); |
3483 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 3484 | if (token != STRING) { |
4615d498 | 3485 | parse_warn (cfile, "string expected."); |
be6be08d TL |
3486 | skip_to_semi (cfile); |
3487 | *lose = 1; | |
02a015fb | 3488 | return 0; |
be6be08d TL |
3489 | } |
3490 | for (col = collections; col; col = col -> next) | |
3491 | if (!strcmp (col -> name, val)) | |
3492 | break; | |
3493 | if (!col) { | |
4615d498 | 3494 | parse_warn (cfile, "unknown collection."); |
be6be08d | 3495 | *lose = 1; |
02a015fb | 3496 | return 0; |
be6be08d | 3497 | } |
4bd8800e | 3498 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3499 | log_fatal ("can't allocate expression"); |
02a015fb TL |
3500 | (*expr) -> op = expr_check; |
3501 | (*expr) -> data.check = col; | |
3502 | break; | |
be6be08d | 3503 | |
5e6fb153 | 3504 | case TOKEN_NOT: |
b3519f23 | 3505 | token = next_token (&val, (unsigned *)0, cfile); |
98bf1607 | 3506 | #if defined(NSUPDATE_OLD) |
9fb2fb28 | 3507 | if (context == context_dns) { |
b3519f23 | 3508 | token = peek_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
3509 | goto not_exists; |
3510 | } | |
98bf1607 | 3511 | #endif |
4bd8800e | 3512 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3513 | log_fatal ("can't allocate expression"); |
02a015fb TL |
3514 | (*expr) -> op = expr_not; |
3515 | if (!parse_non_binary (&(*expr) -> data.not, | |
9a7f6fcd | 3516 | cfile, lose, context_boolean)) { |
be6be08d | 3517 | if (!*lose) { |
4615d498 | 3518 | parse_warn (cfile, "expression expected"); |
be6be08d TL |
3519 | skip_to_semi (cfile); |
3520 | } | |
3521 | *lose = 1; | |
4bd8800e | 3522 | expression_dereference (expr, MDL); |
02a015fb | 3523 | return 0; |
be6be08d | 3524 | } |
9a7f6fcd TL |
3525 | if (!is_boolean_expression ((*expr) -> data.not)) { |
3526 | *lose = 1; | |
3527 | parse_warn (cfile, "boolean expression expected"); | |
3528 | skip_to_semi (cfile); | |
3529 | expression_dereference (expr, MDL); | |
3530 | return 0; | |
3531 | } | |
be6be08d | 3532 | break; |
be6be08d | 3533 | |
fcd9651f | 3534 | case LPAREN: |
b3519f23 | 3535 | token = next_token (&val, (unsigned *)0, cfile); |
fcd9651f TL |
3536 | if (!parse_expression (expr, cfile, lose, context, |
3537 | (struct expression **)0, expr_none)) { | |
3538 | if (!*lose) { | |
3539 | parse_warn (cfile, "expression expected"); | |
3540 | skip_to_semi (cfile); | |
3541 | } | |
3542 | *lose = 1; | |
3543 | return 0; | |
3544 | } | |
b3519f23 | 3545 | token = next_token (&val, (unsigned *)0, cfile); |
fcd9651f TL |
3546 | if (token != RPAREN) { |
3547 | *lose = 1; | |
3548 | parse_warn (cfile, "right paren expected"); | |
3549 | skip_to_semi (cfile); | |
3550 | return 0; | |
3551 | } | |
3552 | break; | |
3553 | ||
02a015fb | 3554 | case EXISTS: |
98bf1607 | 3555 | #if defined(NSUPDATE_OLD) |
9fb2fb28 TL |
3556 | if (context == context_dns) |
3557 | goto ns_exists; | |
98bf1607 | 3558 | #endif |
b3519f23 | 3559 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3560 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3561 | log_fatal ("can't allocate expression"); |
02a015fb | 3562 | (*expr) -> op = expr_exists; |
b1b7b521 | 3563 | known = 0; |
f7fdb216 DH |
3564 | /* Pass reference directly to expression structure. */ |
3565 | status = parse_option_name(cfile, 0, &known, | |
3566 | &(*expr)->data.option); | |
3567 | if (status != ISC_R_SUCCESS || | |
3568 | (*expr)->data.option == NULL) { | |
02a015fb | 3569 | *lose = 1; |
4bd8800e | 3570 | expression_dereference (expr, MDL); |
02a015fb | 3571 | return 0; |
be6be08d | 3572 | } |
02a015fb | 3573 | break; |
be6be08d | 3574 | |
1c5d5731 | 3575 | case STATIC: |
b3519f23 | 3576 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3577 | if (!expression_allocate (expr, MDL)) |
1c5d5731 TL |
3578 | log_fatal ("can't allocate expression"); |
3579 | (*expr) -> op = expr_static; | |
3580 | break; | |
3581 | ||
70330633 | 3582 | case KNOWN: |
b3519f23 | 3583 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3584 | if (!expression_allocate (expr, MDL)) |
70330633 TL |
3585 | log_fatal ("can't allocate expression"); |
3586 | (*expr) -> op = expr_known; | |
3587 | break; | |
3588 | ||
be6be08d | 3589 | case SUBSTRING: |
b3519f23 | 3590 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3591 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3592 | log_fatal ("can't allocate expression"); |
02a015fb | 3593 | (*expr) -> op = expr_substring; |
be6be08d | 3594 | |
b3519f23 | 3595 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3596 | if (token != LPAREN) { |
3597 | nolparen: | |
4bd8800e | 3598 | expression_dereference (expr, MDL); |
4615d498 | 3599 | parse_warn (cfile, "left parenthesis expected."); |
be6be08d | 3600 | *lose = 1; |
02a015fb | 3601 | return 0; |
be6be08d TL |
3602 | } |
3603 | ||
02a015fb TL |
3604 | if (!parse_data_expression (&(*expr) -> data.substring.expr, |
3605 | cfile, lose)) { | |
be6be08d | 3606 | nodata: |
4bd8800e | 3607 | expression_dereference (expr, MDL); |
962dc4ab TL |
3608 | if (!*lose) { |
3609 | parse_warn (cfile, | |
3610 | "expecting data expression."); | |
3611 | skip_to_semi (cfile); | |
3612 | *lose = 1; | |
3613 | } | |
02a015fb | 3614 | return 0; |
be6be08d TL |
3615 | } |
3616 | ||
b3519f23 | 3617 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3618 | if (token != COMMA) { |
3619 | nocomma: | |
4bd8800e | 3620 | expression_dereference (expr, MDL); |
4615d498 | 3621 | parse_warn (cfile, "comma expected."); |
be6be08d | 3622 | *lose = 1; |
02a015fb TL |
3623 | |
3624 | return 0; | |
be6be08d TL |
3625 | } |
3626 | ||
02a015fb TL |
3627 | if (!parse_numeric_expression |
3628 | (&(*expr) -> data.substring.offset,cfile, lose)) { | |
be6be08d TL |
3629 | nonum: |
3630 | if (!*lose) { | |
4615d498 TL |
3631 | parse_warn (cfile, |
3632 | "expecting numeric expression."); | |
be6be08d TL |
3633 | skip_to_semi (cfile); |
3634 | *lose = 1; | |
3635 | } | |
4bd8800e | 3636 | expression_dereference (expr, MDL); |
02a015fb | 3637 | return 0; |
be6be08d TL |
3638 | } |
3639 | ||
b3519f23 | 3640 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3641 | if (token != COMMA) |
3642 | goto nocomma; | |
3643 | ||
02a015fb TL |
3644 | if (!parse_numeric_expression |
3645 | (&(*expr) -> data.substring.len, cfile, lose)) | |
be6be08d TL |
3646 | goto nonum; |
3647 | ||
b3519f23 | 3648 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3649 | if (token != RPAREN) { |
3650 | norparen: | |
4615d498 | 3651 | parse_warn (cfile, "right parenthesis expected."); |
be6be08d | 3652 | *lose = 1; |
4bd8800e | 3653 | expression_dereference (expr, MDL); |
02a015fb | 3654 | return 0; |
be6be08d | 3655 | } |
02a015fb | 3656 | break; |
be6be08d TL |
3657 | |
3658 | case SUFFIX: | |
b3519f23 | 3659 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3660 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3661 | log_fatal ("can't allocate expression"); |
02a015fb | 3662 | (*expr) -> op = expr_suffix; |
be6be08d | 3663 | |
b3519f23 | 3664 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3665 | if (token != LPAREN) |
3666 | goto nolparen; | |
3667 | ||
02a015fb TL |
3668 | if (!parse_data_expression (&(*expr) -> data.suffix.expr, |
3669 | cfile, lose)) | |
be6be08d TL |
3670 | goto nodata; |
3671 | ||
b3519f23 | 3672 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3673 | if (token != COMMA) |
3674 | goto nocomma; | |
3675 | ||
b0f452b3 TL |
3676 | if (!parse_numeric_expression (&(*expr) -> data.suffix.len, |
3677 | cfile, lose)) | |
be6be08d TL |
3678 | goto nonum; |
3679 | ||
b3519f23 | 3680 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3681 | if (token != RPAREN) |
3682 | goto norparen; | |
02a015fb | 3683 | break; |
be6be08d | 3684 | |
2727c1cf DH |
3685 | case LCASE: |
3686 | token = next_token(&val, (unsigned *)0, cfile); | |
3687 | if (!expression_allocate(expr, MDL)) | |
3688 | log_fatal ("can't allocate expression"); | |
3689 | (*expr)->op = expr_lcase; | |
3690 | ||
3691 | token = next_token(&val, (unsigned *)0, cfile); | |
3692 | if (token != LPAREN) | |
3693 | goto nolparen; | |
3694 | ||
3695 | if (!parse_data_expression(&(*expr)->data.lcase, cfile, lose)) | |
3696 | goto nodata; | |
3697 | ||
3698 | token = next_token(&val, (unsigned *)0, cfile); | |
3699 | if (token != RPAREN) | |
3700 | goto norparen; | |
3701 | break; | |
3702 | ||
3703 | case UCASE: | |
3704 | token = next_token(&val, (unsigned *)0, cfile); | |
3705 | if (!expression_allocate(expr, MDL)) | |
3706 | log_fatal ("can't allocate expression"); | |
3707 | (*expr)->op = expr_ucase; | |
3708 | ||
3709 | token = next_token (&val, (unsigned *)0, cfile); | |
3710 | if (token != LPAREN) | |
3711 | goto nolparen; | |
3712 | ||
3713 | if (!parse_data_expression(&(*expr)->data.ucase, | |
3714 | cfile, lose)) | |
3715 | goto nodata; | |
3716 | ||
3717 | token = next_token(&val, (unsigned *)0, cfile); | |
3718 | if (token != RPAREN) | |
3719 | goto norparen; | |
3720 | break; | |
3721 | ||
a82abfc7 | 3722 | case CONCAT: |
b3519f23 | 3723 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3724 | if (!expression_allocate (expr, MDL)) |
a82abfc7 TL |
3725 | log_fatal ("can't allocate expression"); |
3726 | (*expr) -> op = expr_concat; | |
3727 | ||
b3519f23 | 3728 | token = next_token (&val, (unsigned *)0, cfile); |
a82abfc7 TL |
3729 | if (token != LPAREN) |
3730 | goto nolparen; | |
3731 | ||
3732 | if (!parse_data_expression (&(*expr) -> data.concat [0], | |
3733 | cfile, lose)) | |
3734 | goto nodata; | |
3735 | ||
b3519f23 | 3736 | token = next_token (&val, (unsigned *)0, cfile); |
a82abfc7 TL |
3737 | if (token != COMMA) |
3738 | goto nocomma; | |
3739 | ||
720c8262 | 3740 | concat_another: |
a82abfc7 TL |
3741 | if (!parse_data_expression (&(*expr) -> data.concat [1], |
3742 | cfile, lose)) | |
3743 | goto nodata; | |
3744 | ||
b3519f23 | 3745 | token = next_token (&val, (unsigned *)0, cfile); |
720c8262 TL |
3746 | |
3747 | if (token == COMMA) { | |
3748 | nexp = (struct expression *)0; | |
4bd8800e | 3749 | if (!expression_allocate (&nexp, MDL)) |
720c8262 TL |
3750 | log_fatal ("can't allocate at CONCAT2"); |
3751 | nexp -> op = expr_concat; | |
4bd8800e TL |
3752 | expression_reference (&nexp -> data.concat [0], |
3753 | *expr, MDL); | |
3754 | expression_dereference (expr, MDL); | |
3755 | expression_reference (expr, nexp, MDL); | |
d758ad8c | 3756 | expression_dereference (&nexp, MDL); |
720c8262 TL |
3757 | goto concat_another; |
3758 | } | |
3759 | ||
a82abfc7 TL |
3760 | if (token != RPAREN) |
3761 | goto norparen; | |
3762 | break; | |
3763 | ||
da38df14 | 3764 | case BINARY_TO_ASCII: |
b3519f23 | 3765 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3766 | if (!expression_allocate (expr, MDL)) |
da38df14 | 3767 | log_fatal ("can't allocate expression"); |
eb42f00e | 3768 | (*expr) -> op = expr_binary_to_ascii; |
da38df14 | 3769 | |
b3519f23 | 3770 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3771 | if (token != LPAREN) |
3772 | goto nolparen; | |
3773 | ||
3774 | if (!parse_numeric_expression (&(*expr) -> data.b2a.base, | |
3775 | cfile, lose)) | |
3776 | goto nodata; | |
3777 | ||
b3519f23 | 3778 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3779 | if (token != COMMA) |
3780 | goto nocomma; | |
3781 | ||
3782 | if (!parse_numeric_expression (&(*expr) -> data.b2a.width, | |
3783 | cfile, lose)) | |
3784 | goto nodata; | |
3785 | ||
b3519f23 | 3786 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3787 | if (token != COMMA) |
3788 | goto nocomma; | |
3789 | ||
c57db45c | 3790 | if (!parse_data_expression (&(*expr) -> data.b2a.separator, |
da38df14 TL |
3791 | cfile, lose)) |
3792 | goto nodata; | |
3793 | ||
b3519f23 | 3794 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3795 | if (token != COMMA) |
3796 | goto nocomma; | |
3797 | ||
3798 | if (!parse_data_expression (&(*expr) -> data.b2a.buffer, | |
3799 | cfile, lose)) | |
3800 | goto nodata; | |
3801 | ||
b3519f23 | 3802 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3803 | if (token != RPAREN) |
3804 | goto norparen; | |
3805 | break; | |
3806 | ||
3807 | case REVERSE: | |
b3519f23 | 3808 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3809 | if (!expression_allocate (expr, MDL)) |
da38df14 | 3810 | log_fatal ("can't allocate expression"); |
eb42f00e | 3811 | (*expr) -> op = expr_reverse; |
da38df14 | 3812 | |
b3519f23 | 3813 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3814 | if (token != LPAREN) |
3815 | goto nolparen; | |
3816 | ||
3817 | if (!(parse_numeric_expression | |
3818 | (&(*expr) -> data.reverse.width, cfile, lose))) | |
3819 | goto nodata; | |
3820 | ||
b3519f23 | 3821 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3822 | if (token != COMMA) |
3823 | goto nocomma; | |
3824 | ||
3825 | if (!(parse_data_expression | |
3826 | (&(*expr) -> data.reverse.buffer, cfile, lose))) | |
3827 | goto nodata; | |
3828 | ||
b3519f23 | 3829 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3830 | if (token != RPAREN) |
3831 | goto norparen; | |
3832 | break; | |
3833 | ||
fdac15d9 | 3834 | case PICK: |
79a65726 TL |
3835 | /* pick (a, b, c) actually produces an internal representation |
3836 | that looks like pick (a, pick (b, pick (c, nil))). */ | |
b3519f23 | 3837 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3838 | if (!(expression_allocate (expr, MDL))) |
79a65726 | 3839 | log_fatal ("can't allocate expression"); |
79a65726 | 3840 | |
b3519f23 | 3841 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
3842 | if (token != LPAREN) |
3843 | goto nolparen; | |
3844 | ||
d758ad8c TL |
3845 | nexp = (struct expression *)0; |
3846 | expression_reference (&nexp, *expr, MDL); | |
79a65726 | 3847 | do { |
d758ad8c TL |
3848 | nexp -> op = expr_pick_first_value; |
3849 | if (!(parse_data_expression | |
3850 | (&nexp -> data.pick_first_value.car, | |
3851 | cfile, lose))) | |
3852 | goto nodata; | |
79a65726 | 3853 | |
d758ad8c TL |
3854 | token = next_token (&val, (unsigned *)0, cfile); |
3855 | if (token == COMMA) { | |
3856 | struct expression *foo = (struct expression *)0; | |
3857 | if (!expression_allocate (&foo, MDL)) | |
3858 | log_fatal ("can't allocate expr"); | |
3859 | expression_reference | |
3860 | (&nexp -> data.pick_first_value.cdr, foo, MDL); | |
3861 | expression_dereference (&nexp, MDL); | |
3862 | expression_reference (&nexp, foo, MDL); | |
3863 | expression_dereference (&foo, MDL); | |
3864 | } | |
79a65726 | 3865 | } while (token == COMMA); |
d758ad8c | 3866 | expression_dereference (&nexp, MDL); |
79a65726 TL |
3867 | |
3868 | if (token != RPAREN) | |
3869 | goto norparen; | |
3870 | break; | |
3871 | ||
98bf1607 | 3872 | #if defined(NSUPDATE_OLD) |
9fb2fb28 TL |
3873 | /* dns-update and dns-delete are present for historical |
3874 | purposes, but are deprecated in favor of ns-update | |
3875 | in combination with update, delete, exists and not | |
3876 | exists. */ | |
069e9f4c | 3877 | case DNS_UPDATE: |
9fb2fb28 | 3878 | case DNS_DELETE: |
069e9f4c | 3879 | #if !defined (NSUPDATE) |
4615d498 TL |
3880 | parse_warn (cfile, |
3881 | "Please rebuild dhcpd with --with-nsupdate."); | |
069e9f4c | 3882 | #endif |
b3519f23 | 3883 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 | 3884 | if (token == DNS_UPDATE) |
f579f39f | 3885 | opcode = expr_ns_add; |
9fb2fb28 TL |
3886 | else |
3887 | opcode = expr_ns_delete; | |
3888 | ||
b3519f23 | 3889 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
3890 | if (token != LPAREN) |
3891 | goto nolparen; | |
3892 | ||
b3519f23 | 3893 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
3894 | if (token != STRING) { |
3895 | parse_warn (cfile, | |
3896 | "parse_expression: expecting string."); | |
3897 | badnsupdate: | |
069e9f4c TL |
3898 | skip_to_semi (cfile); |
3899 | *lose = 1; | |
3900 | return 0; | |
3901 | } | |
9fb2fb28 TL |
3902 | |
3903 | if (!strcasecmp (val, "a")) | |
08514fb8 | 3904 | u = T_A; |
98bd7ca0 DH |
3905 | else if (!strcasecmp (val, "aaaa")) |
3906 | u = T_AAAA; | |
9fb2fb28 | 3907 | else if (!strcasecmp (val, "ptr")) |
08514fb8 | 3908 | u = T_PTR; |
9fb2fb28 | 3909 | else if (!strcasecmp (val, "mx")) |
08514fb8 | 3910 | u = T_MX; |
9fb2fb28 | 3911 | else if (!strcasecmp (val, "cname")) |
08514fb8 | 3912 | u = T_CNAME; |
9fb2fb28 | 3913 | else if (!strcasecmp (val, "TXT")) |
08514fb8 | 3914 | u = T_TXT; |
9fb2fb28 TL |
3915 | else { |
3916 | parse_warn (cfile, "unexpected rrtype: %s", val); | |
3917 | goto badnsupdate; | |
3918 | } | |
fdac15d9 | 3919 | |
08514fb8 TL |
3920 | s = (opcode == expr_ns_add |
3921 | ? "old-dns-update" | |
3922 | : "old-dns-delete"); | |
3923 | cptr = dmalloc (strlen (s) + 1, MDL); | |
3924 | if (!cptr) | |
3925 | log_fatal ("can't allocate name for %s", s); | |
3926 | strcpy (cptr, s); | |
4bd8800e | 3927 | if (!expression_allocate (expr, MDL)) |
fdac15d9 | 3928 | log_fatal ("can't allocate expression"); |
fdac15d9 | 3929 | (*expr) -> op = expr_funcall; |
08514fb8 | 3930 | (*expr) -> data.funcall.name = cptr; |
fdac15d9 | 3931 | |
08514fb8 TL |
3932 | /* Fake up a function call. */ |
3933 | ep = &(*expr) -> data.funcall.arglist; | |
3934 | if (!expression_allocate (ep, MDL)) | |
3935 | log_fatal ("can't allocate expression"); | |
3936 | (*ep) -> op = expr_arg; | |
3937 | if (!make_const_int (&(*ep) -> data.arg.val, u)) | |
fdac15d9 | 3938 | log_fatal ("can't allocate rrtype value."); |
069e9f4c | 3939 | |
b3519f23 | 3940 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
3941 | if (token != COMMA) |
3942 | goto nocomma; | |
08514fb8 TL |
3943 | ep = &((*ep) -> data.arg.next); |
3944 | if (!expression_allocate (ep, MDL)) | |
3945 | log_fatal ("can't allocate expression"); | |
3946 | (*ep) -> op = expr_arg; | |
3947 | if (!(parse_data_expression (&(*ep) -> data.arg.val, | |
fdac15d9 | 3948 | cfile, lose))) |
069e9f4c TL |
3949 | goto nodata; |
3950 | ||
b3519f23 | 3951 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
3952 | if (token != COMMA) |
3953 | goto nocomma; | |
3954 | ||
08514fb8 TL |
3955 | ep = &((*ep) -> data.arg.next); |
3956 | if (!expression_allocate (ep, MDL)) | |
3957 | log_fatal ("can't allocate expression"); | |
3958 | (*ep) -> op = expr_arg; | |
3959 | if (!(parse_data_expression (&(*ep) -> data.arg.val, | |
fdac15d9 | 3960 | cfile, lose))) |
069e9f4c TL |
3961 | goto nodata; |
3962 | ||
f579f39f | 3963 | if (opcode == expr_ns_add) { |
b3519f23 | 3964 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
3965 | if (token != COMMA) |
3966 | goto nocomma; | |
3967 | ||
08514fb8 TL |
3968 | ep = &((*ep) -> data.arg.next); |
3969 | if (!expression_allocate (ep, MDL)) | |
3970 | log_fatal ("can't allocate expression"); | |
3971 | (*ep) -> op = expr_arg; | |
3972 | if (!(parse_numeric_expression (&(*ep) -> data.arg.val, | |
3973 | cfile, lose))) { | |
9fb2fb28 | 3974 | parse_warn (cfile, |
fdac15d9 | 3975 | "expecting numeric expression."); |
9fb2fb28 TL |
3976 | goto badnsupdate; |
3977 | } | |
069e9f4c | 3978 | } |
08514fb8 | 3979 | |
b3519f23 | 3980 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
3981 | if (token != RPAREN) |
3982 | goto norparen; | |
3983 | break; | |
3984 | ||
9fb2fb28 | 3985 | case NS_UPDATE: |
88886e12 TL |
3986 | #if !defined (NSUPDATE) |
3987 | parse_warn (cfile, | |
3988 | "Please rebuild dhcpd with --with-nsupdate."); | |
3989 | #endif | |
b3519f23 | 3990 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3991 | if (!expression_allocate (expr, MDL)) |
88886e12 | 3992 | log_fatal ("can't allocate expression"); |
88886e12 | 3993 | |
b3519f23 | 3994 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
3995 | if (token != LPAREN) |
3996 | goto nolparen; | |
3997 | ||
9fb2fb28 TL |
3998 | nexp = *expr; |
3999 | do { | |
4000 | nexp -> op = expr_dns_transaction; | |
4001 | if (!(parse_dns_expression | |
4002 | (&nexp -> data.dns_transaction.car, | |
4003 | cfile, lose))) | |
4004 | { | |
f579f39f TL |
4005 | if (!*lose) |
4006 | parse_warn | |
4007 | (cfile, | |
4008 | "expecting dns expression."); | |
4bd8800e | 4009 | expression_dereference (expr, MDL); |
9fb2fb28 TL |
4010 | *lose = 1; |
4011 | return 0; | |
4012 | } | |
4013 | ||
b3519f23 | 4014 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4015 | |
4016 | if (token == COMMA) { | |
4017 | if (!(expression_allocate | |
4018 | (&nexp -> data.dns_transaction.cdr, | |
4bd8800e | 4019 | MDL))) |
9fb2fb28 TL |
4020 | log_fatal |
4021 | ("can't allocate expression"); | |
4022 | nexp = nexp -> data.dns_transaction.cdr; | |
4023 | } | |
4024 | } while (token == COMMA); | |
4025 | ||
4026 | if (token != RPAREN) | |
4027 | goto norparen; | |
4028 | break; | |
4029 | ||
4030 | /* NOT EXISTS is special cased above... */ | |
4031 | not_exists: | |
b3519f23 | 4032 | token = peek_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
4033 | if (token != EXISTS) { |
4034 | parse_warn (cfile, "expecting DNS prerequisite."); | |
4035 | *lose = 1; | |
4036 | return 0; | |
4037 | } | |
9fb2fb28 TL |
4038 | opcode = expr_ns_not_exists; |
4039 | goto nsupdatecode; | |
f579f39f TL |
4040 | case TOKEN_ADD: |
4041 | opcode = expr_ns_add; | |
9fb2fb28 TL |
4042 | goto nsupdatecode; |
4043 | case TOKEN_DELETE: | |
4044 | opcode = expr_ns_delete; | |
4045 | goto nsupdatecode; | |
4046 | ns_exists: | |
4047 | opcode = expr_ns_exists; | |
4048 | nsupdatecode: | |
b3519f23 | 4049 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4050 | |
4051 | #if !defined (NSUPDATE) | |
4052 | parse_warn (cfile, | |
4053 | "Please rebuild dhcpd with --with-nsupdate."); | |
4054 | #endif | |
4bd8800e | 4055 | if (!expression_allocate (expr, MDL)) |
9fb2fb28 TL |
4056 | log_fatal ("can't allocate expression"); |
4057 | (*expr) -> op = opcode; | |
4058 | ||
b3519f23 | 4059 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4060 | if (token != LPAREN) |
4061 | goto nolparen; | |
4062 | ||
b3519f23 | 4063 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4064 | if (!is_identifier (token) && token != NUMBER) { |
4065 | parse_warn (cfile, "expecting identifier or number."); | |
4066 | badnsop: | |
4bd8800e | 4067 | expression_dereference (expr, MDL); |
88886e12 TL |
4068 | skip_to_semi (cfile); |
4069 | *lose = 1; | |
4070 | return 0; | |
4071 | } | |
9fb2fb28 TL |
4072 | |
4073 | if (token == NUMBER) | |
f579f39f | 4074 | (*expr) -> data.ns_add.rrclass = atoi (val); |
9fb2fb28 | 4075 | else if (!strcasecmp (val, "in")) |
f579f39f | 4076 | (*expr) -> data.ns_add.rrclass = C_IN; |
9fb2fb28 | 4077 | else if (!strcasecmp (val, "chaos")) |
f579f39f | 4078 | (*expr) -> data.ns_add.rrclass = C_CHAOS; |
9fb2fb28 | 4079 | else if (!strcasecmp (val, "hs")) |
f579f39f | 4080 | (*expr) -> data.ns_add.rrclass = C_HS; |
9fb2fb28 TL |
4081 | else { |
4082 | parse_warn (cfile, "unexpected rrclass: %s", val); | |
4083 | goto badnsop; | |
4084 | } | |
4085 | ||
b3519f23 | 4086 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4087 | if (token != COMMA) |
4088 | goto nocomma; | |
4089 | ||
b3519f23 | 4090 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4091 | if (!is_identifier (token) && token != NUMBER) { |
4092 | parse_warn (cfile, "expecting identifier or number."); | |
4093 | goto badnsop; | |
4094 | } | |
4095 | ||
4096 | if (token == NUMBER) | |
f579f39f | 4097 | (*expr) -> data.ns_add.rrtype = atoi (val); |
9fb2fb28 | 4098 | else if (!strcasecmp (val, "a")) |
f579f39f | 4099 | (*expr) -> data.ns_add.rrtype = T_A; |
98bd7ca0 DH |
4100 | else if (!strcasecmp (val, "aaaa")) |
4101 | (*expr) -> data.ns_add.rrtype = T_AAAA; | |
9fb2fb28 | 4102 | else if (!strcasecmp (val, "ptr")) |
f579f39f | 4103 | (*expr) -> data.ns_add.rrtype = T_PTR; |
9fb2fb28 | 4104 | else if (!strcasecmp (val, "mx")) |
f579f39f | 4105 | (*expr) -> data.ns_add.rrtype = T_MX; |
9fb2fb28 | 4106 | else if (!strcasecmp (val, "cname")) |
f579f39f | 4107 | (*expr) -> data.ns_add.rrtype = T_CNAME; |
9fb2fb28 | 4108 | else if (!strcasecmp (val, "TXT")) |
f579f39f | 4109 | (*expr) -> data.ns_add.rrtype = T_TXT; |
9fb2fb28 TL |
4110 | else { |
4111 | parse_warn (cfile, "unexpected rrtype: %s", val); | |
4112 | goto badnsop; | |
4113 | } | |
88886e12 | 4114 | |
b3519f23 | 4115 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4116 | if (token != COMMA) |
4117 | goto nocomma; | |
4118 | ||
4119 | if (!(parse_data_expression | |
f579f39f | 4120 | (&(*expr) -> data.ns_add.rrname, cfile, lose))) |
88886e12 TL |
4121 | goto nodata; |
4122 | ||
b3519f23 | 4123 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4124 | if (token != COMMA) |
4125 | goto nocomma; | |
4126 | ||
4127 | if (!(parse_data_expression | |
f579f39f | 4128 | (&(*expr) -> data.ns_add.rrdata, cfile, lose))) |
88886e12 TL |
4129 | goto nodata; |
4130 | ||
f579f39f | 4131 | if (opcode == expr_ns_add) { |
b3519f23 | 4132 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4133 | if (token != COMMA) |
4134 | goto nocomma; | |
4135 | ||
4136 | if (!(parse_numeric_expression | |
f579f39f TL |
4137 | (&(*expr) -> data.ns_add.ttl, cfile, |
4138 | lose))) { | |
962dc4ab | 4139 | if (!*lose) |
9fb2fb28 | 4140 | parse_warn (cfile, |
962dc4ab TL |
4141 | "expecting numeric expression."); |
4142 | goto badnsupdate; | |
9fb2fb28 TL |
4143 | } |
4144 | } | |
4145 | ||
b3519f23 | 4146 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4147 | if (token != RPAREN) |
4148 | goto norparen; | |
4149 | break; | |
98bf1607 | 4150 | #endif /* NSUPDATE_OLD */ |
79a65726 TL |
4151 | case OPTION: |
4152 | case CONFIG_OPTION: | |
4bd8800e | 4153 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4154 | log_fatal ("can't allocate expression"); |
cd31814f TL |
4155 | (*expr) -> op = (token == OPTION |
4156 | ? expr_option | |
4157 | : expr_config_option); | |
b3519f23 | 4158 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 4159 | known = 0; |
f7fdb216 DH |
4160 | /* Pass reference directly to expression structure. */ |
4161 | status = parse_option_name(cfile, 0, &known, | |
4162 | &(*expr)->data.option); | |
4163 | if (status != ISC_R_SUCCESS || | |
4164 | (*expr)->data.option == NULL) { | |
be6be08d | 4165 | *lose = 1; |
4bd8800e | 4166 | expression_dereference (expr, MDL); |
02a015fb | 4167 | return 0; |
be6be08d | 4168 | } |
02a015fb | 4169 | break; |
be6be08d TL |
4170 | |
4171 | case HARDWARE: | |
b3519f23 | 4172 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4173 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4174 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4175 | (*expr) -> op = expr_hardware; |
4176 | break; | |
be6be08d | 4177 | |
da38df14 | 4178 | case LEASED_ADDRESS: |
b3519f23 | 4179 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4180 | if (!expression_allocate (expr, MDL)) |
da38df14 TL |
4181 | log_fatal ("can't allocate expression"); |
4182 | (*expr) -> op = expr_leased_address; | |
4183 | break; | |
4184 | ||
9a7f6fcd | 4185 | case CLIENT_STATE: |
b3519f23 | 4186 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
4187 | if (!expression_allocate (expr, MDL)) |
4188 | log_fatal ("can't allocate expression"); | |
4189 | (*expr) -> op = expr_client_state; | |
4190 | break; | |
4191 | ||
fdac15d9 | 4192 | case FILENAME: |
b3519f23 | 4193 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4194 | if (!expression_allocate (expr, MDL)) |
fdac15d9 TL |
4195 | log_fatal ("can't allocate expression"); |
4196 | (*expr) -> op = expr_filename; | |
4197 | break; | |
4198 | ||
4199 | case SERVER_NAME: | |
b3519f23 | 4200 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4201 | if (!expression_allocate (expr, MDL)) |
fdac15d9 TL |
4202 | log_fatal ("can't allocate expression"); |
4203 | (*expr) -> op = expr_sname; | |
4204 | break; | |
4205 | ||
069e9f4c | 4206 | case LEASE_TIME: |
b3519f23 | 4207 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4208 | if (!expression_allocate (expr, MDL)) |
069e9f4c TL |
4209 | log_fatal ("can't allocate expression"); |
4210 | (*expr) -> op = expr_lease_time; | |
4211 | break; | |
4212 | ||
f579f39f | 4213 | case TOKEN_NULL: |
b3519f23 | 4214 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4215 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4216 | log_fatal ("can't allocate expression"); |
4217 | (*expr) -> op = expr_null; | |
4218 | break; | |
4219 | ||
79a65726 | 4220 | case HOST_DECL_NAME: |
b3519f23 | 4221 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4222 | if (!expression_allocate (expr, MDL)) |
79a65726 TL |
4223 | log_fatal ("can't allocate expression"); |
4224 | (*expr) -> op = expr_host_decl_name; | |
4225 | break; | |
4226 | ||
98bf1607 | 4227 | #if defined(NSUPDATE_OLD) |
846d7d54 | 4228 | case UPDATED_DNS_RR: |
b3519f23 | 4229 | token = next_token (&val, (unsigned *)0, cfile); |
06a8567c | 4230 | |
b3519f23 | 4231 | token = next_token (&val, (unsigned *)0, cfile); |
846d7d54 TL |
4232 | if (token != LPAREN) |
4233 | goto nolparen; | |
f579f39f | 4234 | |
b3519f23 | 4235 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4236 | if (token != STRING) { |
4237 | parse_warn (cfile, "expecting string."); | |
4238 | bad_rrtype: | |
4239 | *lose = 1; | |
4240 | return 0; | |
4241 | } | |
4242 | if (!strcasecmp (val, "a")) | |
4243 | s = "ddns-fwd-name"; | |
4244 | else if (!strcasecmp (val, "ptr")) | |
4245 | s = "ddns-rev-name"; | |
4246 | else { | |
4247 | parse_warn (cfile, "invalid DNS rrtype: %s", val); | |
4248 | goto bad_rrtype; | |
4249 | } | |
846d7d54 | 4250 | |
b3519f23 | 4251 | token = next_token (&val, (unsigned *)0, cfile); |
846d7d54 TL |
4252 | if (token != RPAREN) |
4253 | goto norparen; | |
4254 | ||
4bd8800e | 4255 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4256 | log_fatal ("can't allocate expression"); |
4257 | (*expr) -> op = expr_variable_reference; | |
4258 | (*expr) -> data.variable = | |
fdac15d9 | 4259 | dmalloc (strlen (s) + 1, MDL); |
f579f39f TL |
4260 | if (!(*expr) -> data.variable) |
4261 | log_fatal ("can't allocate variable name."); | |
4262 | strcpy ((*expr) -> data.variable, s); | |
06a8567c | 4263 | break; |
98bf1607 | 4264 | #endif /* NSUPDATE_OLD */ |
be6be08d | 4265 | case PACKET: |
b3519f23 | 4266 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4267 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4268 | log_fatal ("can't allocate expression"); |
02a015fb | 4269 | (*expr) -> op = expr_packet; |
be6be08d | 4270 | |
b3519f23 | 4271 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4272 | if (token != LPAREN) |
4273 | goto nolparen; | |
4274 | ||
02a015fb TL |
4275 | if (!parse_numeric_expression (&(*expr) -> data.packet.offset, |
4276 | cfile, lose)) | |
be6be08d TL |
4277 | goto nonum; |
4278 | ||
b3519f23 | 4279 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4280 | if (token != COMMA) |
4281 | goto nocomma; | |
4282 | ||
02a015fb TL |
4283 | if (!parse_numeric_expression (&(*expr) -> data.packet.len, |
4284 | cfile, lose)) | |
be6be08d TL |
4285 | goto nonum; |
4286 | ||
b3519f23 | 4287 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4288 | if (token != RPAREN) |
4289 | goto norparen; | |
02a015fb | 4290 | break; |
be6be08d TL |
4291 | |
4292 | case STRING: | |
b3519f23 | 4293 | token = next_token (&val, &len, cfile); |
b1b7b521 | 4294 | if (!make_const_data (expr, (const unsigned char *)val, |
d758ad8c | 4295 | len, 1, 1, MDL)) |
8ae2d595 | 4296 | log_fatal ("can't make constant string expression."); |
02a015fb | 4297 | break; |
be6be08d | 4298 | |
be6be08d | 4299 | case EXTRACT_INT: |
b3519f23 TL |
4300 | token = next_token (&val, (unsigned *)0, cfile); |
4301 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 4302 | if (token != LPAREN) { |
4615d498 | 4303 | parse_warn (cfile, "left parenthesis expected."); |
be6be08d | 4304 | *lose = 1; |
02a015fb | 4305 | return 0; |
be6be08d TL |
4306 | } |
4307 | ||
4bd8800e | 4308 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4309 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4310 | |
4311 | if (!parse_data_expression (&(*expr) -> data.extract_int, | |
4312 | cfile, lose)) { | |
962dc4ab TL |
4313 | if (!*lose) { |
4314 | parse_warn (cfile, | |
4315 | "expecting data expression."); | |
4316 | skip_to_semi (cfile); | |
4317 | *lose = 1; | |
4318 | } | |
4bd8800e | 4319 | expression_dereference (expr, MDL); |
02a015fb | 4320 | return 0; |
be6be08d TL |
4321 | } |
4322 | ||
b3519f23 | 4323 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4324 | if (token != COMMA) { |
4615d498 | 4325 | parse_warn (cfile, "comma expected."); |
be6be08d | 4326 | *lose = 1; |
4bd8800e | 4327 | expression_dereference (expr, MDL); |
02a015fb | 4328 | return 0; |
be6be08d TL |
4329 | } |
4330 | ||
b3519f23 | 4331 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4332 | if (token != NUMBER) { |
4615d498 | 4333 | parse_warn (cfile, "number expected."); |
be6be08d | 4334 | *lose = 1; |
4bd8800e | 4335 | expression_dereference (expr, MDL); |
02a015fb | 4336 | return 0; |
be6be08d | 4337 | } |
be6be08d TL |
4338 | switch (atoi (val)) { |
4339 | case 8: | |
02a015fb | 4340 | (*expr) -> op = expr_extract_int8; |
be6be08d TL |
4341 | break; |
4342 | ||
4343 | case 16: | |
02a015fb | 4344 | (*expr) -> op = expr_extract_int16; |
be6be08d TL |
4345 | break; |
4346 | ||
4347 | case 32: | |
02a015fb | 4348 | (*expr) -> op = expr_extract_int32; |
be6be08d TL |
4349 | break; |
4350 | ||
4351 | default: | |
4615d498 TL |
4352 | parse_warn (cfile, |
4353 | "unsupported integer size %d", atoi (val)); | |
be6be08d TL |
4354 | *lose = 1; |
4355 | skip_to_semi (cfile); | |
4bd8800e | 4356 | expression_dereference (expr, MDL); |
02a015fb | 4357 | return 0; |
be6be08d TL |
4358 | } |
4359 | ||
b3519f23 | 4360 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4361 | if (token != RPAREN) { |
4615d498 | 4362 | parse_warn (cfile, "right parenthesis expected."); |
be6be08d | 4363 | *lose = 1; |
4bd8800e | 4364 | expression_dereference (expr, MDL); |
02a015fb | 4365 | return 0; |
be6be08d | 4366 | } |
02a015fb | 4367 | break; |
be6be08d | 4368 | |
20c4e94d | 4369 | case ENCODE_INT: |
b3519f23 TL |
4370 | token = next_token (&val, (unsigned *)0, cfile); |
4371 | token = next_token (&val, (unsigned *)0, cfile); | |
20c4e94d | 4372 | if (token != LPAREN) { |
4615d498 | 4373 | parse_warn (cfile, "left parenthesis expected."); |
20c4e94d TL |
4374 | *lose = 1; |
4375 | return 0; | |
4376 | } | |
4377 | ||
4bd8800e | 4378 | if (!expression_allocate (expr, MDL)) |
20c4e94d TL |
4379 | log_fatal ("can't allocate expression"); |
4380 | ||
4381 | if (!parse_numeric_expression (&(*expr) -> data.encode_int, | |
4382 | cfile, lose)) { | |
4615d498 | 4383 | parse_warn (cfile, "expecting numeric expression."); |
20c4e94d TL |
4384 | skip_to_semi (cfile); |
4385 | *lose = 1; | |
4bd8800e | 4386 | expression_dereference (expr, MDL); |
20c4e94d TL |
4387 | return 0; |
4388 | } | |
4389 | ||
b3519f23 | 4390 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4391 | if (token != COMMA) { |
4615d498 | 4392 | parse_warn (cfile, "comma expected."); |
20c4e94d | 4393 | *lose = 1; |
4bd8800e | 4394 | expression_dereference (expr, MDL); |
20c4e94d TL |
4395 | return 0; |
4396 | } | |
4397 | ||
b3519f23 | 4398 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4399 | if (token != NUMBER) { |
4615d498 | 4400 | parse_warn (cfile, "number expected."); |
20c4e94d | 4401 | *lose = 1; |
4bd8800e | 4402 | expression_dereference (expr, MDL); |
20c4e94d TL |
4403 | return 0; |
4404 | } | |
4405 | switch (atoi (val)) { | |
4406 | case 8: | |
4407 | (*expr) -> op = expr_encode_int8; | |
4408 | break; | |
4409 | ||
4410 | case 16: | |
4411 | (*expr) -> op = expr_encode_int16; | |
4412 | break; | |
4413 | ||
4414 | case 32: | |
4415 | (*expr) -> op = expr_encode_int32; | |
4416 | break; | |
4417 | ||
4418 | default: | |
4615d498 TL |
4419 | parse_warn (cfile, |
4420 | "unsupported integer size %d", atoi (val)); | |
20c4e94d TL |
4421 | *lose = 1; |
4422 | skip_to_semi (cfile); | |
4bd8800e | 4423 | expression_dereference (expr, MDL); |
20c4e94d TL |
4424 | return 0; |
4425 | } | |
4426 | ||
b3519f23 | 4427 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4428 | if (token != RPAREN) { |
4615d498 | 4429 | parse_warn (cfile, "right parenthesis expected."); |
20c4e94d | 4430 | *lose = 1; |
4bd8800e | 4431 | expression_dereference (expr, MDL); |
20c4e94d TL |
4432 | return 0; |
4433 | } | |
4434 | break; | |
4435 | ||
be6be08d | 4436 | case NUMBER: |
02a015fb TL |
4437 | /* If we're in a numeric context, this should just be a |
4438 | number, by itself. */ | |
f579f39f TL |
4439 | if (context == context_numeric || |
4440 | context == context_data_or_numeric) { | |
b3519f23 | 4441 | next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4442 | if (!expression_allocate (expr, MDL)) |
be19167d | 4443 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4444 | (*expr) -> op = expr_const_int; |
4445 | (*expr) -> data.const_int = atoi (val); | |
4446 | break; | |
4447 | } | |
be6be08d | 4448 | |
02a015fb | 4449 | case NUMBER_OR_NAME: |
4bd8800e | 4450 | if (!expression_allocate (expr, MDL)) |
be19167d TL |
4451 | log_fatal ("can't allocate expression"); |
4452 | ||
02a015fb TL |
4453 | (*expr) -> op = expr_const_data; |
4454 | if (!parse_cshl (&(*expr) -> data.const_data, cfile)) { | |
4bd8800e | 4455 | expression_dereference (expr, MDL); |
02a015fb TL |
4456 | return 0; |
4457 | } | |
4458 | break; | |
4459 | ||
f579f39f TL |
4460 | case NS_FORMERR: |
4461 | known = FORMERR; | |
9a7f6fcd | 4462 | goto ns_const; |
f579f39f | 4463 | ns_const: |
b3519f23 | 4464 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4465 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4466 | log_fatal ("can't allocate expression"); |
4467 | (*expr) -> op = expr_const_int; | |
4468 | (*expr) -> data.const_int = known; | |
4469 | break; | |
4470 | ||
4471 | case NS_NOERROR: | |
1898dcf7 | 4472 | known = ISC_R_SUCCESS; |
f579f39f TL |
4473 | goto ns_const; |
4474 | ||
4475 | case NS_NOTAUTH: | |
98bf1607 | 4476 | known = DHCP_R_NOTAUTH; |
f579f39f TL |
4477 | goto ns_const; |
4478 | ||
4479 | case NS_NOTIMP: | |
1898dcf7 | 4480 | known = ISC_R_NOTIMPLEMENTED; |
f579f39f TL |
4481 | goto ns_const; |
4482 | ||
4483 | case NS_NOTZONE: | |
98bf1607 | 4484 | known = DHCP_R_NOTZONE; |
f579f39f TL |
4485 | goto ns_const; |
4486 | ||
4487 | case NS_NXDOMAIN: | |
98bf1607 | 4488 | known = DHCP_R_NXDOMAIN; |
f579f39f TL |
4489 | goto ns_const; |
4490 | ||
4491 | case NS_NXRRSET: | |
98bf1607 | 4492 | known = DHCP_R_NXRRSET; |
f579f39f TL |
4493 | goto ns_const; |
4494 | ||
4495 | case NS_REFUSED: | |
98bf1607 | 4496 | known = DHCP_R_REFUSED; |
f579f39f TL |
4497 | goto ns_const; |
4498 | ||
4499 | case NS_SERVFAIL: | |
98bf1607 | 4500 | known = DHCP_R_SERVFAIL; |
f579f39f TL |
4501 | goto ns_const; |
4502 | ||
4503 | case NS_YXDOMAIN: | |
98bf1607 | 4504 | known = DHCP_R_YXDOMAIN; |
f579f39f TL |
4505 | goto ns_const; |
4506 | ||
4507 | case NS_YXRRSET: | |
98bf1607 | 4508 | known = DHCP_R_YXRRSET; |
f579f39f TL |
4509 | goto ns_const; |
4510 | ||
8a34e9e6 TL |
4511 | case BOOTING: |
4512 | known = S_INIT; | |
4513 | goto ns_const; | |
4514 | ||
4515 | case REBOOT: | |
4516 | known = S_REBOOTING; | |
4517 | goto ns_const; | |
4518 | ||
4519 | case SELECT: | |
4520 | known = S_SELECTING; | |
4521 | goto ns_const; | |
4522 | ||
543ce4f8 TL |
4523 | case REQUEST: |
4524 | known = S_REQUESTING; | |
4525 | goto ns_const; | |
4526 | ||
8a34e9e6 TL |
4527 | case BOUND: |
4528 | known = S_BOUND; | |
4529 | goto ns_const; | |
4530 | ||
4531 | case RENEW: | |
4532 | known = S_RENEWING; | |
4533 | goto ns_const; | |
4534 | ||
4535 | case REBIND: | |
4536 | known = S_REBINDING; | |
4537 | goto ns_const; | |
4538 | ||
f579f39f | 4539 | case DEFINED: |
b3519f23 TL |
4540 | token = next_token (&val, (unsigned *)0, cfile); |
4541 | token = next_token (&val, (unsigned *)0, cfile); | |
f579f39f TL |
4542 | if (token != LPAREN) |
4543 | goto nolparen; | |
4544 | ||
b3519f23 | 4545 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4546 | if (token != NAME && token != NUMBER_OR_NAME) { |
4547 | parse_warn (cfile, "%s can't be a variable name", val); | |
4548 | skip_to_semi (cfile); | |
4549 | *lose = 1; | |
4550 | return 0; | |
4551 | } | |
4552 | ||
4bd8800e | 4553 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4554 | log_fatal ("can't allocate expression"); |
4555 | (*expr) -> op = expr_variable_exists; | |
fdac15d9 | 4556 | (*expr) -> data.variable = dmalloc (strlen (val) + 1, MDL); |
f579f39f TL |
4557 | if (!(*expr)->data.variable) |
4558 | log_fatal ("can't allocate variable name"); | |
4559 | strcpy ((*expr) -> data.variable, val); | |
b3519f23 | 4560 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4561 | if (token != RPAREN) |
4562 | goto norparen; | |
4563 | break; | |
4564 | ||
33ea4622 DH |
4565 | /* This parses 'gethostname()'. */ |
4566 | case GETHOSTNAME: | |
4567 | token = next_token(&val, NULL, cfile); | |
4568 | if (!expression_allocate(expr, MDL)) | |
4569 | log_fatal("can't allocate expression"); | |
4570 | (*expr)->op = expr_gethostname; | |
4571 | ||
4572 | token = next_token(NULL, NULL, cfile); | |
4573 | if (token != LPAREN) | |
4574 | goto nolparen; | |
4575 | ||
4576 | token = next_token(NULL, NULL, cfile); | |
4577 | if (token != RPAREN) | |
4578 | goto norparen; | |
023fbaa0 TM |
4579 | break; |
4580 | ||
4581 | case GETHOSTBYNAME: | |
4582 | token = next_token(&val, NULL, cfile); | |
4583 | ||
4584 | token = next_token(NULL, NULL, cfile); | |
4585 | if (token != LPAREN) | |
4586 | goto nolparen; | |
4587 | ||
4588 | /* The argument is a quoted string. */ | |
4589 | token = next_token(&val, NULL, cfile); | |
4590 | if (token != STRING) { | |
4591 | parse_warn(cfile, "Expecting quoted literal: " | |
4592 | "\"foo.example.com\""); | |
4593 | skip_to_semi(cfile); | |
4594 | *lose = 1; | |
4595 | return 0; | |
4596 | } | |
4597 | if (!make_host_lookup(expr, val)) | |
4598 | log_fatal("Error creating gethostbyname() internal " | |
4599 | "record. (%s:%d)", MDL); | |
4600 | ||
4601 | token = next_token(NULL, NULL, cfile); | |
4602 | if (token != RPAREN) | |
4603 | goto norparen; | |
33ea4622 DH |
4604 | break; |
4605 | ||
02a015fb | 4606 | /* Not a valid start to an expression... */ |
be6be08d | 4607 | default: |
f579f39f TL |
4608 | if (token != NAME && token != NUMBER_OR_NAME) |
4609 | return 0; | |
4610 | ||
b3519f23 | 4611 | token = next_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4612 | |
4613 | /* Save the name of the variable being referenced. */ | |
4614 | cptr = dmalloc (strlen (val) + 1, MDL); | |
4615 | if (!cptr) | |
4616 | log_fatal ("can't allocate variable name"); | |
4617 | strcpy (cptr, val); | |
4618 | ||
4619 | /* Simple variable reference, as far as we can tell. */ | |
b3519f23 | 4620 | token = peek_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4621 | if (token != LPAREN) { |
4622 | if (!expression_allocate (expr, MDL)) | |
4623 | log_fatal ("can't allocate expression"); | |
4624 | (*expr) -> op = expr_variable_reference; | |
4625 | (*expr) -> data.variable = cptr; | |
4626 | break; | |
4627 | } | |
4628 | ||
b3519f23 | 4629 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4630 | if (!expression_allocate (expr, MDL)) |
f579f39f | 4631 | log_fatal ("can't allocate expression"); |
08514fb8 TL |
4632 | (*expr) -> op = expr_funcall; |
4633 | (*expr) -> data.funcall.name = cptr; | |
4634 | ||
4635 | /* Now parse the argument list. */ | |
4636 | ep = &(*expr) -> data.funcall.arglist; | |
4637 | do { | |
4638 | if (!expression_allocate (ep, MDL)) | |
4639 | log_fatal ("can't allocate expression"); | |
4640 | (*ep) -> op = expr_arg; | |
4641 | if (!parse_expression (&(*ep) -> data.arg.val, | |
4642 | cfile, lose, context_any, | |
4643 | (struct expression **)0, | |
4644 | expr_none)) { | |
4645 | if (!*lose) { | |
4646 | parse_warn (cfile, | |
4647 | "expecting expression."); | |
4648 | *lose = 1; | |
4649 | } | |
4650 | skip_to_semi (cfile); | |
4651 | expression_dereference (expr, MDL); | |
4652 | return 0; | |
4653 | } | |
4654 | ep = &((*ep) -> data.arg.next); | |
b3519f23 | 4655 | token = next_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4656 | } while (token == COMMA); |
4657 | if (token != RPAREN) { | |
4658 | parse_warn (cfile, "Right parenthesis expected."); | |
4659 | skip_to_semi (cfile); | |
4660 | *lose = 1; | |
4661 | expression_dereference (expr, MDL); | |
4662 | return 0; | |
4663 | } | |
f579f39f | 4664 | break; |
be6be08d | 4665 | } |
02a015fb | 4666 | return 1; |
be6be08d TL |
4667 | } |
4668 | ||
02a015fb TL |
4669 | /* Parse an expression. */ |
4670 | ||
4671 | int parse_expression (expr, cfile, lose, context, plhs, binop) | |
4672 | struct expression **expr; | |
4615d498 | 4673 | struct parse *cfile; |
02a015fb TL |
4674 | int *lose; |
4675 | enum expression_context context; | |
4676 | struct expression **plhs; | |
4677 | enum expr_op binop; | |
4678 | { | |
4679 | enum dhcp_token token; | |
b1b7b521 | 4680 | const char *val; |
02a015fb | 4681 | struct expression *rhs = (struct expression *)0, *tmp; |
962dc4ab | 4682 | struct expression *lhs = (struct expression *)0; |
02a015fb | 4683 | enum expr_op next_op; |
1898dcf7 TL |
4684 | enum expression_context |
4685 | lhs_context = context_any, | |
4686 | rhs_context = context_any; | |
02a015fb TL |
4687 | |
4688 | /* Consume the left hand side we were passed. */ | |
4689 | if (plhs) { | |
962dc4ab TL |
4690 | expression_reference (&lhs, *plhs, MDL); |
4691 | expression_dereference (plhs, MDL); | |
4692 | } | |
02a015fb TL |
4693 | |
4694 | new_rhs: | |
4695 | if (!parse_non_binary (&rhs, cfile, lose, context)) { | |
4696 | /* If we already have a left-hand side, then it's not | |
4697 | okay for there not to be a right-hand side here, so | |
4698 | we need to flag it as an error. */ | |
4699 | if (lhs) { | |
4700 | if (!*lose) { | |
4615d498 TL |
4701 | parse_warn (cfile, |
4702 | "expecting right-hand side."); | |
02a015fb TL |
4703 | *lose = 1; |
4704 | skip_to_semi (cfile); | |
4705 | } | |
4bd8800e | 4706 | expression_dereference (&lhs, MDL); |
02a015fb TL |
4707 | } |
4708 | return 0; | |
4709 | } | |
4710 | ||
4711 | /* At this point, rhs contains either an entire subexpression, | |
4712 | or at least a left-hand-side. If we do not see a binary token | |
4713 | as the next token, we're done with the expression. */ | |
4714 | ||
b3519f23 | 4715 | token = peek_token (&val, (unsigned *)0, cfile); |
02a015fb | 4716 | switch (token) { |
2b965a44 | 4717 | case BANG: |
b3519f23 TL |
4718 | token = next_token (&val, (unsigned *)0, cfile); |
4719 | token = peek_token (&val, (unsigned *)0, cfile); | |
2b965a44 TL |
4720 | if (token != EQUAL) { |
4721 | parse_warn (cfile, "! in boolean context without ="); | |
4722 | *lose = 1; | |
4723 | skip_to_semi (cfile); | |
4724 | if (lhs) | |
4bd8800e | 4725 | expression_dereference (&lhs, MDL); |
2b965a44 TL |
4726 | return 0; |
4727 | } | |
4728 | next_op = expr_not_equal; | |
1898dcf7 | 4729 | context = expression_context (rhs); |
2b965a44 TL |
4730 | break; |
4731 | ||
02a015fb TL |
4732 | case EQUAL: |
4733 | next_op = expr_equal; | |
1898dcf7 | 4734 | context = expression_context (rhs); |
02a015fb TL |
4735 | break; |
4736 | ||
dd328225 DH |
4737 | case TILDE: |
4738 | #ifdef HAVE_REGEX_H | |
4739 | token = next_token(&val, NULL, cfile); | |
4740 | token = peek_token(&val, NULL, cfile); | |
4741 | ||
4742 | if (token == TILDE) | |
4743 | next_op = expr_iregex_match; | |
4744 | else if (token == EQUAL) | |
4745 | next_op = expr_regex_match; | |
4746 | else { | |
4747 | parse_warn(cfile, "expecting ~= or ~~ operator"); | |
4748 | *lose = 1; | |
4749 | skip_to_semi(cfile); | |
4750 | if (lhs) | |
4751 | expression_dereference(&lhs, MDL); | |
4752 | return 0; | |
4753 | } | |
4754 | ||
4755 | context = expression_context(rhs); | |
4756 | #else | |
4757 | parse_warn(cfile, "No support for regex operator."); | |
4758 | *lose = 1; | |
4759 | skip_to_semi(cfile); | |
4760 | if (lhs != NULL) | |
4761 | expression_dereference(&lhs, MDL); | |
4762 | return 0; | |
4763 | #endif | |
4764 | break; | |
4765 | ||
02a015fb TL |
4766 | case AND: |
4767 | next_op = expr_and; | |
1898dcf7 | 4768 | context = expression_context (rhs); |
02a015fb TL |
4769 | break; |
4770 | ||
4771 | case OR: | |
4772 | next_op = expr_or; | |
1898dcf7 | 4773 | context = expression_context (rhs); |
02a015fb TL |
4774 | break; |
4775 | ||
31cb2a5f TL |
4776 | case PLUS: |
4777 | next_op = expr_add; | |
1898dcf7 | 4778 | context = expression_context (rhs); |
31cb2a5f TL |
4779 | break; |
4780 | ||
4781 | case MINUS: | |
4782 | next_op = expr_subtract; | |
1898dcf7 | 4783 | context = expression_context (rhs); |
31cb2a5f TL |
4784 | break; |
4785 | ||
4786 | case SLASH: | |
4787 | next_op = expr_divide; | |
1898dcf7 | 4788 | context = expression_context (rhs); |
31cb2a5f TL |
4789 | break; |
4790 | ||
4791 | case ASTERISK: | |
4792 | next_op = expr_multiply; | |
1898dcf7 | 4793 | context = expression_context (rhs); |
31cb2a5f TL |
4794 | break; |
4795 | ||
4796 | case PERCENT: | |
4797 | next_op = expr_remainder; | |
1898dcf7 | 4798 | context = expression_context (rhs); |
31cb2a5f TL |
4799 | break; |
4800 | ||
3c98e80b DN |
4801 | case AMPERSAND: |
4802 | next_op = expr_binary_and; | |
1898dcf7 | 4803 | context = expression_context (rhs); |
3c98e80b DN |
4804 | break; |
4805 | ||
4806 | case PIPE: | |
4807 | next_op = expr_binary_or; | |
1898dcf7 | 4808 | context = expression_context (rhs); |
3c98e80b DN |
4809 | break; |
4810 | ||
4811 | case CARET: | |
4812 | next_op = expr_binary_xor; | |
1898dcf7 | 4813 | context = expression_context (rhs); |
3c98e80b DN |
4814 | break; |
4815 | ||
02a015fb TL |
4816 | default: |
4817 | next_op = expr_none; | |
4818 | } | |
4819 | ||
4820 | /* If we have no lhs yet, we just parsed it. */ | |
4821 | if (!lhs) { | |
4822 | /* If there was no operator following what we just parsed, | |
4823 | then we're done - return it. */ | |
4824 | if (next_op == expr_none) { | |
4825 | *expr = rhs; | |
4826 | return 1; | |
4827 | } | |
4828 | lhs = rhs; | |
4829 | rhs = (struct expression *)0; | |
4830 | binop = next_op; | |
b3519f23 | 4831 | next_token (&val, (unsigned *)0, cfile); |
02a015fb TL |
4832 | goto new_rhs; |
4833 | } | |
4834 | ||
98311e4b DH |
4835 | /* If the next binary operator is of greater precedence than the |
4836 | * current operator, then rhs we have parsed so far is actually | |
4837 | * the lhs of the next operator. To get this value, we have to | |
4838 | * recurse. | |
4839 | */ | |
4840 | if (binop != expr_none && next_op != expr_none && | |
4841 | op_precedence (binop, next_op) < 0) { | |
4842 | ||
4843 | /* Eat the subexpression operator token, which we pass to | |
4844 | * parse_expression...we only peek()'d earlier. | |
4845 | */ | |
4846 | token = next_token (&val, (unsigned *)0, cfile); | |
4847 | ||
4848 | /* Continue parsing of the right hand side with that token. */ | |
4849 | tmp = rhs; | |
4850 | rhs = (struct expression *)0; | |
4851 | if (!parse_expression (&rhs, cfile, lose, op_context (next_op), | |
4852 | &tmp, next_op)) { | |
4853 | if (!*lose) { | |
4854 | parse_warn (cfile, | |
4855 | "expecting a subexpression"); | |
4856 | *lose = 1; | |
4857 | } | |
4858 | return 0; | |
4859 | } | |
4860 | next_op = expr_none; | |
4861 | } | |
4862 | ||
4863 | if (binop != expr_none) { | |
4864 | rhs_context = expression_context(rhs); | |
4865 | lhs_context = expression_context(lhs); | |
4866 | ||
4867 | if ((rhs_context != context_any) && (lhs_context != context_any) && | |
4868 | (rhs_context != lhs_context)) { | |
4869 | parse_warn (cfile, "illegal expression relating different types"); | |
4870 | skip_to_semi (cfile); | |
4871 | expression_dereference (&rhs, MDL); | |
4872 | expression_dereference (&lhs, MDL); | |
4873 | *lose = 1; | |
4874 | return 0; | |
4875 | } | |
4876 | ||
4877 | switch(binop) { | |
4878 | case expr_not_equal: | |
4879 | case expr_equal: | |
4880 | if ((rhs_context != context_data_or_numeric) && | |
4881 | (rhs_context != context_data) && | |
4882 | (rhs_context != context_numeric) && | |
4883 | (rhs_context != context_any)) { | |
4884 | parse_warn (cfile, "expecting data/numeric expression"); | |
4885 | skip_to_semi (cfile); | |
4886 | expression_dereference (&rhs, MDL); | |
4887 | *lose = 1; | |
4888 | return 0; | |
4889 | } | |
4890 | break; | |
4891 | ||
dd328225 DH |
4892 | case expr_regex_match: |
4893 | #ifdef HAVE_REGEX_H | |
4894 | if (expression_context(rhs) != context_data) { | |
4895 | parse_warn(cfile, "expecting data expression"); | |
4896 | skip_to_semi(cfile); | |
4897 | expression_dereference(&rhs, MDL); | |
4898 | *lose = 1; | |
4899 | return 0; | |
4900 | } | |
4901 | #else | |
4902 | /* It should not be possible to attempt to parse the right | |
4903 | * hand side of an operator there is no support for. | |
4904 | */ | |
4905 | log_fatal("Impossible condition at %s:%d.", MDL); | |
4906 | #endif | |
4907 | break; | |
4908 | ||
98311e4b DH |
4909 | case expr_and: |
4910 | case expr_or: | |
4911 | if ((rhs_context != context_boolean) && | |
4912 | (rhs_context != context_any)) { | |
4913 | parse_warn (cfile, "expecting boolean expressions"); | |
4914 | skip_to_semi (cfile); | |
4915 | expression_dereference (&rhs, MDL); | |
4916 | *lose = 1; | |
4917 | return 0; | |
4918 | } | |
4919 | break; | |
4920 | ||
4921 | case expr_add: | |
4922 | case expr_subtract: | |
4923 | case expr_divide: | |
4924 | case expr_multiply: | |
4925 | case expr_remainder: | |
4926 | case expr_binary_and: | |
4927 | case expr_binary_or: | |
4928 | case expr_binary_xor: | |
4929 | if ((rhs_context != context_numeric) && | |
4930 | (rhs_context != context_any)) { | |
4931 | parse_warn (cfile, "expecting numeric expressions"); | |
4932 | skip_to_semi (cfile); | |
4933 | expression_dereference (&rhs, MDL); | |
4934 | *lose = 1; | |
4935 | return 0; | |
4936 | } | |
4937 | break; | |
4938 | ||
4939 | default: | |
4940 | break; | |
4941 | } | |
4942 | } | |
4943 | ||
02a015fb TL |
4944 | /* Now, if we didn't find a binary operator, we're done parsing |
4945 | this subexpression, so combine it with the preceding binary | |
4946 | operator and return the result. */ | |
4947 | if (next_op == expr_none) { | |
4bd8800e | 4948 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4949 | log_fatal ("Can't allocate expression!"); |
02a015fb TL |
4950 | |
4951 | (*expr) -> op = binop; | |
4952 | /* All the binary operators' data union members | |
4953 | are the same, so we'll cheat and use the member | |
4954 | for the equals operator. */ | |
4955 | (*expr) -> data.equal [0] = lhs; | |
4956 | (*expr) -> data.equal [1] = rhs; | |
4957 | return 1; | |
4958 | } | |
4959 | ||
4960 | /* Eat the operator token - we now know it was a binary operator... */ | |
b3519f23 | 4961 | token = next_token (&val, (unsigned *)0, cfile); |
02a015fb | 4962 | |
02a015fb TL |
4963 | /* Now combine the LHS and the RHS using binop. */ |
4964 | tmp = (struct expression *)0; | |
4bd8800e | 4965 | if (!expression_allocate (&tmp, MDL)) |
8ae2d595 | 4966 | log_fatal ("No memory for equal precedence combination."); |
02a015fb TL |
4967 | |
4968 | /* Store the LHS and RHS. */ | |
4969 | tmp -> data.equal [0] = lhs; | |
4970 | tmp -> data.equal [1] = rhs; | |
4971 | tmp -> op = binop; | |
4972 | ||
4973 | lhs = tmp; | |
4974 | tmp = (struct expression *)0; | |
4975 | rhs = (struct expression *)0; | |
4976 | ||
4977 | /* Recursions don't return until we have parsed the end of the | |
4978 | expression, so if we recursed earlier, we can now return what | |
4979 | we got. */ | |
4980 | if (next_op == expr_none) { | |
4981 | *expr = lhs; | |
4982 | return 1; | |
4983 | } | |
4984 | ||
4985 | binop = next_op; | |
4986 | goto new_rhs; | |
4987 | } | |
4988 | ||
be6be08d | 4989 | |
b55d0d5f EH |
4990 | int parse_option_data (expr, cfile, lookups, option) |
4991 | struct expression **expr; | |
4992 | struct parse *cfile; | |
4993 | int lookups; | |
4994 | struct option *option; | |
be6be08d | 4995 | { |
b1b7b521 | 4996 | const char *val; |
d8fc5060 | 4997 | const char *fmt = NULL; |
02a015fb | 4998 | struct expression *tmp; |
b55d0d5f | 4999 | enum dhcp_token token; |
a82abfc7 | 5000 | |
be6be08d | 5001 | do { |
b55d0d5f EH |
5002 | /* |
5003 | * Set a flag if this is an array of a simple type (i.e., | |
5004 | * not an array of pairs of IP addresses, or something like | |
5005 | * that. | |
5006 | */ | |
f800f4f6 | 5007 | int uniform = 0; |
be6be08d | 5008 | |
d8fc5060 TL |
5009 | and_again: |
5010 | /* Set fmt to start of format for 'A' and one char back | |
d5341d9b SK |
5011 | * for 'a'. |
5012 | */ | |
5013 | if ((fmt != NULL) && (fmt != option->format) && (*fmt == 'a')) | |
d8fc5060 | 5014 | fmt -= 1; |
d5341d9b SK |
5015 | else if ((fmt == NULL) || (*fmt == 'A')) |
5016 | fmt = option->format; | |
d8fc5060 TL |
5017 | |
5018 | /* 'a' means always uniform */ | |
1babd56e | 5019 | if ((fmt[0] != 'Z') && (tolower((unsigned char)fmt[1]) == 'a')) |
f800f4f6 | 5020 | uniform = 1; |
d8fc5060 | 5021 | |
f800f4f6 | 5022 | do { |
d8fc5060 | 5023 | if ((*fmt == 'A') || (*fmt == 'a')) |
be6be08d | 5024 | break; |
e1a40211 SR |
5025 | if (*fmt == 'o') { |
5026 | /* consume the optional flag */ | |
5027 | fmt++; | |
d8fc5060 | 5028 | continue; |
e1a40211 SR |
5029 | } |
5030 | ||
5031 | if (fmt[1] == 'o') { | |
5032 | /* | |
5033 | * A value for the current format is | |
5034 | * optional - check to see if the next | |
5035 | * token is a semi-colon if so we don't | |
5036 | * need to parse it and doing so would | |
5037 | * consume the semi-colon which our | |
5038 | * caller is expecting to parse | |
5039 | */ | |
5040 | token = peek_token(&val, (unsigned *)0, | |
5041 | cfile); | |
5042 | if (token == SEMI) { | |
5043 | fmt++; | |
5044 | continue; | |
5045 | } | |
5046 | } | |
b55d0d5f EH |
5047 | |
5048 | tmp = *expr; | |
5049 | *expr = NULL; | |
4cafb815 | 5050 | |
b55d0d5f | 5051 | if (!parse_option_token(expr, cfile, &fmt, tmp, |
4cafb815 | 5052 | uniform, lookups)) { |
d8fc5060 TL |
5053 | if (fmt [1] != 'o') { |
5054 | if (tmp) | |
5055 | expression_dereference (&tmp, | |
5056 | MDL); | |
5057 | return 0; | |
5058 | } | |
b55d0d5f EH |
5059 | *expr = tmp; |
5060 | tmp = NULL; | |
02a015fb | 5061 | } |
4cafb815 | 5062 | if (tmp) |
4bd8800e | 5063 | expression_dereference (&tmp, MDL); |
f800f4f6 | 5064 | |
4cafb815 | 5065 | fmt++; |
f800f4f6 SK |
5066 | } while (*fmt != '\0'); |
5067 | ||
d8fc5060 | 5068 | if ((*fmt == 'A') || (*fmt == 'a')) { |
b3519f23 | 5069 | token = peek_token (&val, (unsigned *)0, cfile); |
d8fc5060 | 5070 | /* Comma means: continue with next element in array */ |
be6be08d | 5071 | if (token == COMMA) { |
b3519f23 TL |
5072 | token = next_token (&val, |
5073 | (unsigned *)0, cfile); | |
be6be08d TL |
5074 | continue; |
5075 | } | |
d8fc5060 TL |
5076 | /* no comma: end of array. |
5077 | 'A' or end of string means: leave the loop */ | |
5078 | if ((*fmt == 'A') || (fmt[1] == '\0')) | |
5079 | break; | |
5080 | /* 'a' means: go on with next char */ | |
5081 | if (*fmt == 'a') { | |
5082 | fmt++; | |
5083 | goto and_again; | |
5084 | } | |
be6be08d | 5085 | } |
d8fc5060 | 5086 | } while ((*fmt == 'A') || (*fmt == 'a')); |
be6be08d | 5087 | |
b55d0d5f EH |
5088 | return 1; |
5089 | } | |
5090 | ||
5091 | /* option-statement :== identifier DOT identifier <syntax> SEMI | |
5092 | | identifier <syntax> SEMI | |
5093 | ||
5094 | Option syntax is handled specially through format strings, so it | |
5095 | would be painful to come up with BNF for it. However, it always | |
5096 | starts as above and ends in a SEMI. */ | |
5097 | ||
5098 | int parse_option_statement (result, cfile, lookups, option, op) | |
5099 | struct executable_statement **result; | |
5100 | struct parse *cfile; | |
5101 | int lookups; | |
5102 | struct option *option; | |
5103 | enum statement_op op; | |
5104 | { | |
5105 | const char *val; | |
5106 | enum dhcp_token token; | |
5107 | struct expression *expr = (struct expression *)0; | |
5108 | int lose; | |
b55d0d5f EH |
5109 | |
5110 | token = peek_token (&val, (unsigned *)0, cfile); | |
4cafb815 | 5111 | if ((token == SEMI) && (option->format[0] != 'Z')) { |
b55d0d5f | 5112 | /* Eat the semicolon... */ |
f800f4f6 SK |
5113 | /* |
5114 | * XXXSK: I'm not sure why we should ever get here, but we | |
5115 | * do during our startup. This confuses things if | |
5116 | * we are parsing a zero-length option, so don't | |
5117 | * eat the semicolon token in that case. | |
5118 | */ | |
b55d0d5f | 5119 | token = next_token (&val, (unsigned *)0, cfile); |
f800f4f6 | 5120 | } else if (token == EQUAL) { |
b55d0d5f EH |
5121 | /* Eat the equals sign. */ |
5122 | token = next_token (&val, (unsigned *)0, cfile); | |
5123 | ||
5124 | /* Parse a data expression and use its value for the data. */ | |
5125 | if (!parse_data_expression (&expr, cfile, &lose)) { | |
5126 | /* In this context, we must have an executable | |
5127 | statement, so if we found something else, it's | |
5128 | still an error. */ | |
5129 | if (!lose) { | |
5130 | parse_warn (cfile, | |
5131 | "expecting a data expression."); | |
5132 | skip_to_semi (cfile); | |
5133 | } | |
5134 | return 0; | |
5135 | } | |
f800f4f6 SK |
5136 | } else { |
5137 | if (! parse_option_data(&expr, cfile, lookups, option)) | |
5138 | return 0; | |
b55d0d5f EH |
5139 | } |
5140 | ||
25541f2f | 5141 | if (!parse_semi (cfile)) |
79a65726 | 5142 | return 0; |
4bd8800e | 5143 | if (!executable_statement_allocate (result, MDL)) |
79a65726 | 5144 | log_fatal ("no memory for option statement."); |
b55d0d5f EH |
5145 | |
5146 | (*result)->op = op; | |
5147 | if (expr && !option_cache (&(*result)->data.option, | |
5148 | NULL, expr, option, MDL)) | |
52c9d530 | 5149 | log_fatal ("no memory for option cache"); |
b55d0d5f | 5150 | |
d758ad8c TL |
5151 | if (expr) |
5152 | expression_dereference (&expr, MDL); | |
b55d0d5f | 5153 | |
79a65726 | 5154 | return 1; |
be6be08d TL |
5155 | } |
5156 | ||
02a015fb TL |
5157 | int parse_option_token (rv, cfile, fmt, expr, uniform, lookups) |
5158 | struct expression **rv; | |
4615d498 | 5159 | struct parse *cfile; |
63a0ff88 | 5160 | const char **fmt; |
be6be08d TL |
5161 | struct expression *expr; |
5162 | int uniform; | |
5163 | int lookups; | |
5164 | { | |
b1b7b521 | 5165 | const char *val; |
02a015fb TL |
5166 | enum dhcp_token token; |
5167 | struct expression *t = (struct expression *)0; | |
be6be08d | 5168 | unsigned char buf [4]; |
b3519f23 | 5169 | unsigned len; |
be6be08d | 5170 | struct iaddr addr; |
28868515 | 5171 | int compress; |
57fbc772 | 5172 | isc_boolean_t freeval = ISC_FALSE; |
b49c02cc | 5173 | const char *f, *g; |
42c6a803 | 5174 | struct enumeration_value *e; |
be6be08d | 5175 | |
63a0ff88 | 5176 | switch (**fmt) { |
52c9d530 | 5177 | case 'U': |
98311e4b | 5178 | token = next_token (&val, &len, cfile); |
52c9d530 | 5179 | if (!is_identifier (token)) { |
63a0ff88 | 5180 | if ((*fmt) [1] != 'o') { |
d8fc5060 | 5181 | parse_warn (cfile, "expecting identifier."); |
98311e4b DH |
5182 | if (token != SEMI) |
5183 | skip_to_semi (cfile); | |
d8fc5060 | 5184 | } |
52c9d530 TL |
5185 | return 0; |
5186 | } | |
b1b7b521 | 5187 | if (!make_const_data (&t, (const unsigned char *)val, |
d758ad8c | 5188 | len, 1, 1, MDL)) |
52c9d530 TL |
5189 | log_fatal ("No memory for %s", val); |
5190 | break; | |
5191 | ||
962dc4ab | 5192 | case 'E': |
b49c02cc TL |
5193 | g = strchr (*fmt, '.'); |
5194 | if (!g) { | |
962dc4ab TL |
5195 | parse_warn (cfile, |
5196 | "malformed encapsulation format (bug!)"); | |
5197 | skip_to_semi (cfile); | |
5198 | return 0; | |
5199 | } | |
b49c02cc | 5200 | *fmt = g; |
be6be08d | 5201 | case 'X': |
b3519f23 | 5202 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d | 5203 | if (token == NUMBER_OR_NAME || token == NUMBER) { |
4bd8800e | 5204 | if (!expression_allocate (&t, MDL)) |
02a015fb | 5205 | return 0; |
8cc4d857 | 5206 | if (!parse_cshl (&t -> data.const_data, cfile)) { |
4bd8800e | 5207 | expression_dereference (&t, MDL); |
01e20b9e | 5208 | return 0; |
8cc4d857 | 5209 | } |
efc79acb | 5210 | t -> op = expr_const_data; |
be6be08d | 5211 | } else { |
98311e4b DH |
5212 | token = next_token (&val, &len, cfile); |
5213 | ||
5214 | if(token == STRING) { | |
5215 | if (!make_const_data (&t, | |
5216 | (const unsigned char *)val, | |
5217 | len, 1, 1, MDL)) | |
5218 | log_fatal ("No memory for \"%s\"", val); | |
98311e4b | 5219 | } else { |
b55d0d5f EH |
5220 | if ((*fmt) [1] != 'o') { |
5221 | parse_warn (cfile, "expecting string " | |
5222 | "or hexadecimal data."); | |
5223 | skip_to_semi (cfile); | |
5224 | } | |
98311e4b | 5225 | return 0; |
d8fc5060 | 5226 | } |
be6be08d TL |
5227 | } |
5228 | break; | |
dba5803b DH |
5229 | |
5230 | case 'D': /* Domain list... */ | |
98bd7ca0 DH |
5231 | if ((*fmt)[1] == 'c') { |
5232 | compress = 1; | |
5233 | /* Skip the compress-flag atom. */ | |
5234 | (*fmt)++; | |
5235 | } else | |
5236 | compress = 0; | |
5237 | ||
5238 | t = parse_domain_list(cfile, compress); | |
dba5803b DH |
5239 | |
5240 | if (!t) { | |
5241 | if ((*fmt)[1] != 'o') | |
5242 | skip_to_semi(cfile); | |
5243 | return 0; | |
5244 | } | |
5245 | ||
5246 | break; | |
5247 | ||
d758ad8c TL |
5248 | case 'd': /* Domain name... */ |
5249 | val = parse_host_name (cfile); | |
5250 | if (!val) { | |
5251 | parse_warn (cfile, "not a valid domain name."); | |
5252 | skip_to_semi (cfile); | |
5253 | return 0; | |
5254 | } | |
5255 | len = strlen (val); | |
57fbc772 | 5256 | freeval = ISC_TRUE; |
d758ad8c TL |
5257 | goto make_string; |
5258 | ||
be6be08d | 5259 | case 't': /* Text string... */ |
98311e4b | 5260 | token = next_token (&val, &len, cfile); |
be6be08d | 5261 | if (token != STRING && !is_identifier (token)) { |
63a0ff88 | 5262 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5263 | parse_warn (cfile, "expecting string."); |
5264 | if (token != SEMI) | |
5265 | skip_to_semi (cfile); | |
5266 | } | |
02a015fb | 5267 | return 0; |
be6be08d | 5268 | } |
d758ad8c | 5269 | make_string: |
b1b7b521 | 5270 | if (!make_const_data (&t, (const unsigned char *)val, |
d758ad8c | 5271 | len, 1, 1, MDL)) |
8ae2d595 | 5272 | log_fatal ("No memory for concatenation"); |
57fbc772 SR |
5273 | if (freeval == ISC_TRUE) { |
5274 | dfree((char *)val, MDL); | |
5275 | freeval = ISC_FALSE; | |
5276 | } | |
be6be08d TL |
5277 | break; |
5278 | ||
42c6a803 | 5279 | case 'N': |
63a0ff88 | 5280 | f = (*fmt) + 1; |
b49c02cc TL |
5281 | g = strchr (*fmt, '.'); |
5282 | if (!g) { | |
42c6a803 TL |
5283 | parse_warn (cfile, "malformed %s (bug!)", |
5284 | "enumeration format"); | |
5285 | foo: | |
5286 | skip_to_semi (cfile); | |
5287 | return 0; | |
5288 | } | |
b49c02cc | 5289 | *fmt = g; |
b3519f23 | 5290 | token = next_token (&val, (unsigned *)0, cfile); |
42c6a803 TL |
5291 | if (!is_identifier (token)) { |
5292 | parse_warn (cfile, | |
5293 | "identifier expected"); | |
5294 | goto foo; | |
5295 | } | |
c54db708 | 5296 | e = find_enumeration_value (f, (*fmt) - f, &len, val); |
42c6a803 TL |
5297 | if (!e) { |
5298 | parse_warn (cfile, "unknown value"); | |
5299 | goto foo; | |
5300 | } | |
c54db708 | 5301 | if (!make_const_data (&t, &e -> value, len, 0, 1, MDL)) |
42c6a803 TL |
5302 | return 0; |
5303 | break; | |
5304 | ||
be6be08d | 5305 | case 'I': /* IP address or hostname. */ |
02a015fb TL |
5306 | if (lookups) { |
5307 | if (!parse_ip_addr_or_hostname (&t, cfile, uniform)) | |
5308 | return 0; | |
5309 | } else { | |
be6be08d | 5310 | if (!parse_ip_addr (cfile, &addr)) |
02a015fb | 5311 | return 0; |
d758ad8c TL |
5312 | if (!make_const_data (&t, addr.iabuf, addr.len, |
5313 | 0, 1, MDL)) | |
02a015fb | 5314 | return 0; |
be6be08d | 5315 | } |
be6be08d | 5316 | break; |
98bd7ca0 DH |
5317 | |
5318 | case '6': /* IPv6 address. */ | |
5319 | if (!parse_ip6_addr(cfile, &addr)) { | |
5320 | return 0; | |
5321 | } | |
5322 | if (!make_const_data(&t, addr.iabuf, addr.len, 0, 1, MDL)) { | |
5323 | return 0; | |
5324 | } | |
5325 | break; | |
be6be08d | 5326 | |
fdac15d9 | 5327 | case 'T': /* Lease interval. */ |
98311e4b | 5328 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
5329 | if (token != INFINITE) |
5330 | goto check_number; | |
5331 | putLong (buf, -1); | |
d758ad8c | 5332 | if (!make_const_data (&t, buf, 4, 0, 1, MDL)) |
fdac15d9 TL |
5333 | return 0; |
5334 | break; | |
5335 | ||
be6be08d TL |
5336 | case 'L': /* Unsigned 32-bit integer... */ |
5337 | case 'l': /* Signed 32-bit integer... */ | |
98311e4b | 5338 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 5339 | check_number: |
98311e4b | 5340 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) { |
be6be08d | 5341 | need_number: |
63a0ff88 | 5342 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5343 | parse_warn (cfile, "expecting number."); |
5344 | if (token != SEMI) | |
5345 | skip_to_semi (cfile); | |
5346 | } | |
02a015fb | 5347 | return 0; |
be6be08d | 5348 | } |
4615d498 | 5349 | convert_num (cfile, buf, val, 0, 32); |
d758ad8c | 5350 | if (!make_const_data (&t, buf, 4, 0, 1, MDL)) |
02a015fb | 5351 | return 0; |
be6be08d | 5352 | break; |
02a015fb | 5353 | |
be6be08d TL |
5354 | case 's': /* Signed 16-bit integer. */ |
5355 | case 'S': /* Unsigned 16-bit integer. */ | |
b3519f23 | 5356 | token = next_token (&val, (unsigned *)0, cfile); |
98311e4b DH |
5357 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) |
5358 | goto need_number; | |
4615d498 | 5359 | convert_num (cfile, buf, val, 0, 16); |
d758ad8c | 5360 | if (!make_const_data (&t, buf, 2, 0, 1, MDL)) |
02a015fb | 5361 | return 0; |
be6be08d | 5362 | break; |
02a015fb | 5363 | |
be6be08d TL |
5364 | case 'b': /* Signed 8-bit integer. */ |
5365 | case 'B': /* Unsigned 8-bit integer. */ | |
b3519f23 | 5366 | token = next_token (&val, (unsigned *)0, cfile); |
98311e4b DH |
5367 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) |
5368 | goto need_number; | |
4615d498 | 5369 | convert_num (cfile, buf, val, 0, 8); |
d758ad8c | 5370 | if (!make_const_data (&t, buf, 1, 0, 1, MDL)) |
02a015fb | 5371 | return 0; |
be6be08d | 5372 | break; |
02a015fb | 5373 | |
be6be08d | 5374 | case 'f': /* Boolean flag. */ |
98311e4b | 5375 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 5376 | if (!is_identifier (token)) { |
63a0ff88 | 5377 | if ((*fmt) [1] != 'o') |
d8fc5060 | 5378 | parse_warn (cfile, "expecting identifier."); |
be6be08d | 5379 | bad_flag: |
63a0ff88 | 5380 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5381 | if (token != SEMI) |
5382 | skip_to_semi (cfile); | |
5383 | } | |
02a015fb | 5384 | return 0; |
be6be08d TL |
5385 | } |
5386 | if (!strcasecmp (val, "true") | |
5387 | || !strcasecmp (val, "on")) | |
5388 | buf [0] = 1; | |
5389 | else if (!strcasecmp (val, "false") | |
5390 | || !strcasecmp (val, "off")) | |
5391 | buf [0] = 0; | |
0776fd12 TL |
5392 | else if (!strcasecmp (val, "ignore")) |
5393 | buf [0] = 2; | |
be6be08d | 5394 | else { |
63a0ff88 | 5395 | if ((*fmt) [1] != 'o') |
d8fc5060 | 5396 | parse_warn (cfile, "expecting boolean."); |
be6be08d TL |
5397 | goto bad_flag; |
5398 | } | |
d758ad8c | 5399 | if (!make_const_data (&t, buf, 1, 0, 1, MDL)) |
02a015fb | 5400 | return 0; |
be6be08d | 5401 | break; |
02a015fb | 5402 | |
4cafb815 EH |
5403 | case 'Z': /* Zero-length option. */ |
5404 | token = peek_token (&val, (unsigned *)0, cfile); | |
5405 | if (token != SEMI) { | |
5406 | parse_warn(cfile, "semicolon expected."); | |
5407 | skip_to_semi(cfile); | |
5408 | } | |
5409 | buf[0] = '\0'; | |
f800f4f6 SK |
5410 | if (!make_const_data(&t, /* expression */ |
5411 | buf, /* buffer */ | |
5412 | 0, /* length */ | |
5413 | 0, /* terminated */ | |
5414 | 1, /* allocate */ | |
5415 | MDL)) | |
5416 | return 0; | |
5417 | break; | |
5418 | ||
be6be08d | 5419 | default: |
4cafb815 | 5420 | parse_warn (cfile, "Bad format '%c' in parse_option_token.", |
63a0ff88 | 5421 | **fmt); |
be6be08d | 5422 | skip_to_semi (cfile); |
02a015fb | 5423 | return 0; |
be6be08d | 5424 | } |
02a015fb TL |
5425 | if (expr) { |
5426 | if (!make_concat (rv, expr, t)) | |
5427 | return 0; | |
02a015fb | 5428 | } else |
d758ad8c TL |
5429 | expression_reference (rv, t, MDL); |
5430 | expression_dereference (&t, MDL); | |
02a015fb | 5431 | return 1; |
be6be08d | 5432 | } |
74f45f96 | 5433 | |
9a7f6fcd TL |
5434 | int parse_option_decl (oc, cfile) |
5435 | struct option_cache **oc; | |
5436 | struct parse *cfile; | |
5437 | { | |
5438 | const char *val; | |
5439 | int token; | |
5440 | u_int8_t buf [4]; | |
5441 | u_int8_t hunkbuf [1024]; | |
5442 | unsigned hunkix = 0; | |
42c6a803 | 5443 | const char *fmt, *f; |
4cba29f0 | 5444 | struct option *option=NULL; |
9a7f6fcd TL |
5445 | struct iaddr ip_addr; |
5446 | u_int8_t *dp; | |
98bd7ca0 | 5447 | const u_int8_t *cdp; |
9a7f6fcd TL |
5448 | unsigned len; |
5449 | int nul_term = 0; | |
5450 | struct buffer *bp; | |
5451 | int known = 0; | |
98bd7ca0 DH |
5452 | int compress; |
5453 | struct expression *express = NULL; | |
42c6a803 | 5454 | struct enumeration_value *e; |
f7fdb216 | 5455 | isc_result_t status; |
9a7f6fcd | 5456 | |
f7fdb216 DH |
5457 | status = parse_option_name (cfile, 0, &known, &option); |
5458 | if (status != ISC_R_SUCCESS || option == NULL) | |
9a7f6fcd TL |
5459 | return 0; |
5460 | ||
5461 | /* Parse the option data... */ | |
5462 | do { | |
9a7f6fcd TL |
5463 | for (fmt = option -> format; *fmt; fmt++) { |
5464 | if (*fmt == 'A') | |
5465 | break; | |
507fe25f FD |
5466 | if (*fmt == 'o' && fmt != option -> format) |
5467 | continue; | |
9a7f6fcd TL |
5468 | switch (*fmt) { |
5469 | case 'E': | |
5470 | fmt = strchr (fmt, '.'); | |
5471 | if (!fmt) { | |
5472 | parse_warn (cfile, | |
5473 | "malformed %s (bug!)", | |
5474 | "encapsulation format"); | |
f7fdb216 | 5475 | goto parse_exit; |
9a7f6fcd TL |
5476 | } |
5477 | case 'X': | |
5478 | len = parse_X (cfile, &hunkbuf [hunkix], | |
5479 | sizeof hunkbuf - hunkix); | |
5480 | hunkix += len; | |
5481 | break; | |
5482 | ||
5483 | case 't': /* Text string... */ | |
c54db708 FD |
5484 | token = peek_token (&val, |
5485 | &len, cfile); | |
5486 | if (token == SEMI && fmt[1] == 'o') { | |
5487 | fmt++; | |
5488 | break; | |
5489 | } | |
b3519f23 TL |
5490 | token = next_token (&val, |
5491 | &len, cfile); | |
9a7f6fcd TL |
5492 | if (token != STRING) { |
5493 | parse_warn (cfile, | |
5494 | "expecting string."); | |
f7fdb216 | 5495 | goto parse_exit; |
9a7f6fcd | 5496 | } |
9a7f6fcd TL |
5497 | if (hunkix + len + 1 > sizeof hunkbuf) { |
5498 | parse_warn (cfile, | |
5499 | "option data buffer %s", | |
5500 | "overflow"); | |
f7fdb216 | 5501 | goto parse_exit; |
9a7f6fcd TL |
5502 | } |
5503 | memcpy (&hunkbuf [hunkix], val, len + 1); | |
5504 | nul_term = 1; | |
5505 | hunkix += len; | |
5506 | break; | |
5507 | ||
98bd7ca0 DH |
5508 | case 'D': |
5509 | if (fmt[1] == 'c') { | |
5510 | compress = 1; | |
5511 | fmt++; | |
5512 | } else | |
5513 | compress = 0; | |
5514 | ||
5515 | express = parse_domain_list(cfile, compress); | |
5516 | ||
5517 | if (express == NULL) | |
5518 | goto exit; | |
5519 | ||
5520 | if (express->op != expr_const_data) { | |
5521 | parse_warn(cfile, "unexpected " | |
5522 | "expression"); | |
5523 | goto parse_exit; | |
5524 | } | |
5525 | ||
5526 | len = express->data.const_data.len; | |
5527 | cdp = express->data.const_data.data; | |
5528 | ||
5529 | if ((hunkix + len) > sizeof(hunkbuf)) { | |
5530 | parse_warn(cfile, "option data buffer " | |
5531 | "overflow"); | |
5532 | goto parse_exit; | |
5533 | } | |
5534 | memcpy(&hunkbuf[hunkix], cdp, len); | |
5535 | hunkix += len; | |
5536 | ||
5537 | expression_dereference(&express, MDL); | |
5538 | break; | |
5539 | ||
42c6a803 | 5540 | case 'N': |
c54db708 | 5541 | f = fmt + 1; |
42c6a803 TL |
5542 | fmt = strchr (fmt, '.'); |
5543 | if (!fmt) { | |
5544 | parse_warn (cfile, | |
5545 | "malformed %s (bug!)", | |
5546 | "enumeration format"); | |
f7fdb216 | 5547 | goto parse_exit; |
42c6a803 | 5548 | } |
b3519f23 TL |
5549 | token = next_token (&val, |
5550 | (unsigned *)0, cfile); | |
42c6a803 TL |
5551 | if (!is_identifier (token)) { |
5552 | parse_warn (cfile, | |
5553 | "identifier expected"); | |
f7fdb216 | 5554 | goto parse_exit; |
42c6a803 | 5555 | } |
c54db708 FD |
5556 | e = find_enumeration_value (f, fmt - f, |
5557 | &len, val); | |
42c6a803 TL |
5558 | if (!e) { |
5559 | parse_warn (cfile, | |
5560 | "unknown value"); | |
f7fdb216 | 5561 | goto parse_exit; |
42c6a803 | 5562 | } |
42c6a803 TL |
5563 | dp = &e -> value; |
5564 | goto alloc; | |
5565 | ||
98bd7ca0 DH |
5566 | case '6': |
5567 | if (!parse_ip6_addr(cfile, &ip_addr)) | |
5568 | goto exit; | |
5569 | len = ip_addr.len; | |
5570 | dp = ip_addr.iabuf; | |
5571 | goto alloc; | |
5572 | ||
9a7f6fcd TL |
5573 | case 'I': /* IP address. */ |
5574 | if (!parse_ip_addr (cfile, &ip_addr)) | |
f7fdb216 | 5575 | goto exit; |
9a7f6fcd TL |
5576 | len = ip_addr.len; |
5577 | dp = ip_addr.iabuf; | |
5578 | ||
5579 | alloc: | |
5580 | if (hunkix + len > sizeof hunkbuf) { | |
5581 | parse_warn (cfile, | |
5582 | "option data buffer %s", | |
5583 | "overflow"); | |
f7fdb216 | 5584 | goto parse_exit; |
9a7f6fcd TL |
5585 | } |
5586 | memcpy (&hunkbuf [hunkix], dp, len); | |
5587 | hunkix += len; | |
5588 | break; | |
5589 | ||
5590 | case 'L': /* Unsigned 32-bit integer... */ | |
5591 | case 'l': /* Signed 32-bit integer... */ | |
b3519f23 TL |
5592 | token = next_token (&val, |
5593 | (unsigned *)0, cfile); | |
98311e4b DH |
5594 | if ((token != NUMBER) && |
5595 | (token != NUMBER_OR_NAME)) { | |
9a7f6fcd TL |
5596 | need_number: |
5597 | parse_warn (cfile, | |
5598 | "expecting number."); | |
5599 | if (token != SEMI) | |
f7fdb216 DH |
5600 | goto parse_exit; |
5601 | else | |
5602 | goto exit; | |
9a7f6fcd TL |
5603 | } |
5604 | convert_num (cfile, buf, val, 0, 32); | |
5605 | len = 4; | |
5606 | dp = buf; | |
5607 | goto alloc; | |
5608 | ||
5609 | case 's': /* Signed 16-bit integer. */ | |
5610 | case 'S': /* Unsigned 16-bit integer. */ | |
b3519f23 TL |
5611 | token = next_token (&val, |
5612 | (unsigned *)0, cfile); | |
98311e4b DH |
5613 | if ((token != NUMBER) && |
5614 | (token != NUMBER_OR_NAME)) | |
9a7f6fcd TL |
5615 | goto need_number; |
5616 | convert_num (cfile, buf, val, 0, 16); | |
5617 | len = 2; | |
5618 | dp = buf; | |
5619 | goto alloc; | |
5620 | ||
5621 | case 'b': /* Signed 8-bit integer. */ | |
5622 | case 'B': /* Unsigned 8-bit integer. */ | |
b3519f23 TL |
5623 | token = next_token (&val, |
5624 | (unsigned *)0, cfile); | |
98311e4b DH |
5625 | if ((token != NUMBER) && |
5626 | (token != NUMBER_OR_NAME)) | |
9a7f6fcd TL |
5627 | goto need_number; |
5628 | convert_num (cfile, buf, val, 0, 8); | |
5629 | len = 1; | |
5630 | dp = buf; | |
5631 | goto alloc; | |
5632 | ||
5633 | case 'f': /* Boolean flag. */ | |
b3519f23 TL |
5634 | token = next_token (&val, |
5635 | (unsigned *)0, cfile); | |
9a7f6fcd TL |
5636 | if (!is_identifier (token)) { |
5637 | parse_warn (cfile, | |
5638 | "expecting identifier."); | |
5639 | bad_flag: | |
5640 | if (token != SEMI) | |
f7fdb216 DH |
5641 | goto parse_exit; |
5642 | else | |
5643 | goto exit; | |
9a7f6fcd TL |
5644 | } |
5645 | if (!strcasecmp (val, "true") | |
5646 | || !strcasecmp (val, "on")) | |
5647 | buf [0] = 1; | |
5648 | else if (!strcasecmp (val, "false") | |
5649 | || !strcasecmp (val, "off")) | |
5650 | buf [0] = 0; | |
5651 | else { | |
5652 | parse_warn (cfile, | |
5653 | "expecting boolean."); | |
5654 | goto bad_flag; | |
5655 | } | |
5656 | len = 1; | |
5657 | dp = buf; | |
5658 | goto alloc; | |
5659 | ||
4cafb815 EH |
5660 | case 'Z': /* Zero-length option */ |
5661 | token = next_token(&val, (unsigned *)0, cfile); | |
5662 | if (token != SEMI) { | |
5663 | parse_warn(cfile, | |
5664 | "semicolon expected."); | |
5665 | goto parse_exit; | |
5666 | } | |
5667 | len = 0; | |
5668 | buf[0] = '\0'; | |
5669 | break; | |
5670 | ||
9a7f6fcd TL |
5671 | default: |
5672 | log_error ("parse_option_param: Bad format %c", | |
5673 | *fmt); | |
f7fdb216 | 5674 | goto parse_exit; |
9a7f6fcd TL |
5675 | } |
5676 | } | |
b3519f23 | 5677 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5678 | } while (*fmt == 'A' && token == COMMA); |
5679 | ||
5680 | if (token != SEMI) { | |
5681 | parse_warn (cfile, "semicolon expected."); | |
f7fdb216 | 5682 | goto parse_exit; |
9a7f6fcd TL |
5683 | } |
5684 | ||
5685 | bp = (struct buffer *)0; | |
5686 | if (!buffer_allocate (&bp, hunkix + nul_term, MDL)) | |
5687 | log_fatal ("no memory to store option declaration."); | |
5688 | if (!bp -> data) | |
5689 | log_fatal ("out of memory allocating option data."); | |
5690 | memcpy (bp -> data, hunkbuf, hunkix + nul_term); | |
5691 | ||
5692 | if (!option_cache_allocate (oc, MDL)) | |
5693 | log_fatal ("out of memory allocating option cache."); | |
5694 | ||
5695 | (*oc) -> data.buffer = bp; | |
5696 | (*oc) -> data.data = &bp -> data [0]; | |
5697 | (*oc) -> data.terminated = nul_term; | |
5698 | (*oc) -> data.len = hunkix; | |
f7fdb216 DH |
5699 | option_reference(&(*oc)->option, option, MDL); |
5700 | option_dereference(&option, MDL); | |
9a7f6fcd | 5701 | return 1; |
f7fdb216 DH |
5702 | |
5703 | parse_exit: | |
98bd7ca0 DH |
5704 | if (express != NULL) |
5705 | expression_dereference(&express, MDL); | |
f7fdb216 DH |
5706 | skip_to_semi (cfile); |
5707 | exit: | |
5708 | option_dereference(&option, MDL); | |
5709 | ||
5710 | return 0; | |
9a7f6fcd TL |
5711 | } |
5712 | ||
5713 | /* Consider merging parse_cshl into this. */ | |
5714 | ||
5715 | int parse_X (cfile, buf, max) | |
5716 | struct parse *cfile; | |
5717 | u_int8_t *buf; | |
5718 | unsigned max; | |
5719 | { | |
5720 | int token; | |
5721 | const char *val; | |
5722 | unsigned len; | |
9a7f6fcd | 5723 | |
b3519f23 | 5724 | token = peek_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5725 | if (token == NUMBER_OR_NAME || token == NUMBER) { |
5726 | len = 0; | |
5727 | do { | |
b3519f23 | 5728 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5729 | if (token != NUMBER && token != NUMBER_OR_NAME) { |
5730 | parse_warn (cfile, | |
5731 | "expecting hexadecimal constant."); | |
5732 | skip_to_semi (cfile); | |
5733 | return 0; | |
5734 | } | |
5735 | convert_num (cfile, &buf [len], val, 16, 8); | |
5736 | if (len++ > max) { | |
5737 | parse_warn (cfile, | |
5738 | "hexadecimal constant too long."); | |
5739 | skip_to_semi (cfile); | |
5740 | return 0; | |
5741 | } | |
b3519f23 | 5742 | token = peek_token (&val, (unsigned *)0, cfile); |
9a7f6fcd | 5743 | if (token == COLON) |
b3519f23 TL |
5744 | token = next_token (&val, |
5745 | (unsigned *)0, cfile); | |
9a7f6fcd TL |
5746 | } while (token == COLON); |
5747 | val = (char *)buf; | |
5748 | } else if (token == STRING) { | |
b3519f23 | 5749 | token = next_token (&val, &len, cfile); |
9a7f6fcd TL |
5750 | if (len + 1 > max) { |
5751 | parse_warn (cfile, "string constant too long."); | |
5752 | skip_to_semi (cfile); | |
5753 | return 0; | |
5754 | } | |
5755 | memcpy (buf, val, len + 1); | |
5756 | } else { | |
5757 | parse_warn (cfile, "expecting string or hexadecimal data"); | |
5758 | skip_to_semi (cfile); | |
5759 | return 0; | |
5760 | } | |
5761 | return len; | |
5762 | } | |
5763 | ||
cfdfb9f1 | 5764 | int parse_warn (struct parse *cfile, const char *fmt, ...) |
4bd8800e TL |
5765 | { |
5766 | va_list list; | |
4bd8800e TL |
5767 | char lexbuf [256]; |
5768 | char mbuf [1024]; | |
5769 | char fbuf [1024]; | |
5770 | unsigned i, lix; | |
5771 | ||
5772 | do_percentm (mbuf, fmt); | |
98311e4b DH |
5773 | /* %Audit% This is log output. %2004.06.17,Safe% |
5774 | * If we truncate we hope the user can get a hint from the log. | |
5775 | */ | |
4bd8800e TL |
5776 | snprintf (fbuf, sizeof fbuf, "%s line %d: %s", |
5777 | cfile -> tlname, cfile -> lexline, mbuf); | |
4bd8800e | 5778 | |
cfdfb9f1 | 5779 | va_start (list, fmt); |
4bd8800e TL |
5780 | vsnprintf (mbuf, sizeof mbuf, fbuf, list); |
5781 | va_end (list); | |
5782 | ||
5783 | lix = 0; | |
5784 | for (i = 0; | |
5785 | cfile -> token_line [i] && i < (cfile -> lexchar - 1); i++) { | |
5786 | if (lix < (sizeof lexbuf) - 1) | |
5787 | lexbuf [lix++] = ' '; | |
5788 | if (cfile -> token_line [i] == '\t') { | |
28868515 | 5789 | for (; lix < (sizeof lexbuf) - 1 && (lix & 7); lix++) |
4bd8800e TL |
5790 | lexbuf [lix] = ' '; |
5791 | } | |
5792 | } | |
5793 | lexbuf [lix] = 0; | |
5794 | ||
5795 | #ifndef DEBUG | |
4f9e9f47 TL |
5796 | syslog (log_priority | LOG_ERR, "%s", mbuf); |
5797 | syslog (log_priority | LOG_ERR, "%s", cfile -> token_line); | |
4bd8800e TL |
5798 | if (cfile -> lexchar < 81) |
5799 | syslog (log_priority | LOG_ERR, "%s^", lexbuf); | |
5800 | #endif | |
5801 | ||
5802 | if (log_perror) { | |
ae566556 SR |
5803 | IGNORE_RET (write (STDERR_FILENO, mbuf, strlen (mbuf))); |
5804 | IGNORE_RET (write (STDERR_FILENO, "\n", 1)); | |
5805 | IGNORE_RET (write (STDERR_FILENO, cfile -> token_line, | |
5806 | strlen (cfile -> token_line))); | |
5807 | IGNORE_RET (write (STDERR_FILENO, "\n", 1)); | |
4bd8800e | 5808 | if (cfile -> lexchar < 81) |
ae566556 SR |
5809 | IGNORE_RET (write (STDERR_FILENO, lexbuf, lix)); |
5810 | IGNORE_RET (write (STDERR_FILENO, "^\n", 2)); | |
4bd8800e TL |
5811 | } |
5812 | ||
5813 | cfile -> warnings_occurred = 1; | |
5814 | ||
5815 | return 0; | |
5816 | } | |
dba5803b DH |
5817 | |
5818 | struct expression * | |
98bd7ca0 | 5819 | parse_domain_list(struct parse *cfile, int compress) |
dba5803b DH |
5820 | { |
5821 | const char *val; | |
5822 | enum dhcp_token token = SEMI; | |
5823 | struct expression *t = NULL; | |
5824 | unsigned len, clen = 0; | |
5825 | int result; | |
5826 | unsigned char compbuf[256 * NS_MAXCDNAME]; | |
5827 | const unsigned char *dnptrs[256], **lastdnptr; | |
5828 | ||
5829 | memset(compbuf, 0, sizeof(compbuf)); | |
5830 | memset(dnptrs, 0, sizeof(dnptrs)); | |
5831 | dnptrs[0] = compbuf; | |
5832 | lastdnptr = &dnptrs[255]; | |
5833 | ||
5834 | do { | |
5835 | /* Consume the COMMA token if peeked. */ | |
5836 | if (token == COMMA) | |
5837 | next_token(&val, NULL, cfile); | |
5838 | ||
5839 | /* Get next (or first) value. */ | |
5840 | token = next_token(&val, &len, cfile); | |
5841 | ||
5842 | if (token != STRING) { | |
5843 | parse_warn(cfile, "Expecting a domain string."); | |
5844 | return NULL; | |
5845 | } | |
5846 | ||
98bd7ca0 DH |
5847 | /* If compression pointers are enabled, compress. If not, |
5848 | * just pack the names in series into the buffer. | |
5849 | */ | |
5850 | if (compress) { | |
5851 | result = MRns_name_compress(val, compbuf + clen, | |
5852 | sizeof(compbuf) - clen, | |
5853 | dnptrs, lastdnptr); | |
5854 | ||
5855 | if (result < 0) { | |
5856 | parse_warn(cfile, "Error compressing domain " | |
5857 | "list: %m"); | |
5858 | return NULL; | |
5859 | } | |
dba5803b | 5860 | |
98bd7ca0 DH |
5861 | clen += result; |
5862 | } else { | |
5863 | result = MRns_name_pton(val, compbuf + clen, | |
5864 | sizeof(compbuf) - clen); | |
5865 | ||
5866 | /* result == 1 means the input was fully qualified. | |
5867 | * result == 0 means the input wasn't. | |
5868 | * result == -1 means bad things. | |
5869 | */ | |
5870 | if (result < 0) { | |
5871 | parse_warn(cfile, "Error assembling domain " | |
5872 | "list: %m"); | |
5873 | return NULL; | |
5874 | } | |
5875 | ||
5876 | /* | |
5877 | * We need to figure out how many bytes to increment | |
5878 | * our buffer pointer since pton doesn't tell us. | |
5879 | */ | |
5880 | while (compbuf[clen] != 0) | |
5881 | clen += compbuf[clen] + 1; | |
5882 | ||
5883 | /* Count the last label (0). */ | |
5884 | clen++; | |
dba5803b DH |
5885 | } |
5886 | ||
98bd7ca0 DH |
5887 | if (clen > sizeof(compbuf)) |
5888 | log_fatal("Impossible error at %s:%d", MDL); | |
dba5803b DH |
5889 | |
5890 | token = peek_token(&val, NULL, cfile); | |
5891 | } while (token == COMMA); | |
5892 | ||
5893 | if (!make_const_data(&t, compbuf, clen, 1, 1, MDL)) | |
5894 | log_fatal("No memory for domain list object."); | |
5895 | ||
5896 | return t; | |
5897 | } | |
5898 |