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63115431 TL |
1 | /* parse.c |
2 | ||
3 | Common parser code for dhcpd and dhclient. */ | |
4 | ||
5 | /* | |
b047bd38 | 6 | * Copyright (c) 2004-2012 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 |
b047bd38 SR |
572 | * hardware-type :== ETHERNET | TOKEN_RING | TOKEN_FDDI | INFINIBAND |
573 | * Note that INFINIBAND may not be useful for some items, such as classification | |
574 | * as the hardware address won't always be available. | |
be6be08d | 575 | */ |
63115431 TL |
576 | |
577 | void parse_hardware_param (cfile, hardware) | |
4615d498 | 578 | struct parse *cfile; |
63115431 TL |
579 | struct hardware *hardware; |
580 | { | |
b1b7b521 | 581 | const char *val; |
02a015fb | 582 | enum dhcp_token token; |
e703795d | 583 | unsigned hlen; |
63115431 TL |
584 | unsigned char *t; |
585 | ||
b047bd38 | 586 | token = next_token(&val, NULL, cfile); |
63115431 TL |
587 | switch (token) { |
588 | case ETHERNET: | |
b047bd38 | 589 | hardware->hbuf[0] = HTYPE_ETHER; |
63115431 TL |
590 | break; |
591 | case TOKEN_RING: | |
b047bd38 | 592 | hardware->hbuf[0] = HTYPE_IEEE802; |
63115431 | 593 | break; |
219a65eb | 594 | case TOKEN_FDDI: |
b047bd38 SR |
595 | hardware->hbuf[0] = HTYPE_FDDI; |
596 | break; | |
597 | case TOKEN_INFINIBAND: | |
598 | hardware->hbuf[0] = HTYPE_INFINIBAND; | |
cea8b5c9 | 599 | break; |
63115431 | 600 | default: |
b047bd38 SR |
601 | if (!strncmp(val, "unknown-", 8)) { |
602 | hardware->hbuf[0] = atoi(&val[8]); | |
7d452841 | 603 | } else { |
b047bd38 SR |
604 | parse_warn(cfile, |
605 | "expecting a network hardware type"); | |
606 | skip_to_semi(cfile); | |
7d452841 TL |
607 | |
608 | return; | |
609 | } | |
63115431 TL |
610 | } |
611 | ||
612 | /* Parse the hardware address information. Technically, | |
613 | it would make a lot of sense to restrict the length of the | |
614 | data we'll accept here to the length of a particular hardware | |
615 | address type. Unfortunately, there are some broken clients | |
616 | out there that put bogus data in the chaddr buffer, and we accept | |
617 | that data in the lease file rather than simply failing on such | |
618 | clients. Yuck. */ | |
619 | hlen = 0; | |
b047bd38 | 620 | token = peek_token(&val, NULL, cfile); |
1898dcf7 | 621 | if (token == SEMI) { |
b047bd38 | 622 | hardware->hlen = 1; |
1898dcf7 TL |
623 | goto out; |
624 | } | |
b047bd38 SR |
625 | t = parse_numeric_aggregate(cfile, NULL, &hlen, COLON, 16, 8); |
626 | if (t == NULL) { | |
627 | hardware->hlen = 1; | |
63115431 | 628 | return; |
1898dcf7 | 629 | } |
b047bd38 SR |
630 | if (hlen + 1 > sizeof(hardware->hbuf)) { |
631 | dfree(t, MDL); | |
632 | parse_warn(cfile, "hardware address too long"); | |
63115431 | 633 | } else { |
b047bd38 SR |
634 | hardware->hlen = hlen + 1; |
635 | memcpy((unsigned char *)&hardware->hbuf[1], t, hlen); | |
636 | if (hlen + 1 < sizeof(hardware->hbuf)) | |
637 | memset(&hardware->hbuf[hlen + 1], 0, | |
638 | (sizeof(hardware->hbuf)) - hlen - 1); | |
639 | dfree(t, MDL); | |
63115431 TL |
640 | } |
641 | ||
1898dcf7 | 642 | out: |
b047bd38 | 643 | token = next_token(&val, NULL, cfile); |
63115431 | 644 | if (token != SEMI) { |
b047bd38 SR |
645 | parse_warn(cfile, "expecting semicolon."); |
646 | skip_to_semi(cfile); | |
63115431 TL |
647 | } |
648 | } | |
649 | ||
650 | /* lease-time :== NUMBER SEMI */ | |
651 | ||
652 | void parse_lease_time (cfile, timep) | |
4615d498 | 653 | struct parse *cfile; |
63115431 TL |
654 | TIME *timep; |
655 | { | |
b1b7b521 | 656 | const char *val; |
02a015fb | 657 | enum dhcp_token token; |
88cd8aca | 658 | u_int32_t num; |
63115431 | 659 | |
b3519f23 | 660 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 661 | if (token != NUMBER) { |
4615d498 | 662 | parse_warn (cfile, "Expecting numeric lease time"); |
63115431 TL |
663 | skip_to_semi (cfile); |
664 | return; | |
665 | } | |
88cd8aca | 666 | convert_num(cfile, (unsigned char *)&num, val, 10, 32); |
63115431 | 667 | /* Unswap the number - convert_num returns stuff in NBO. */ |
88cd8aca | 668 | *timep = ntohl(num); |
63115431 TL |
669 | |
670 | parse_semi (cfile); | |
671 | } | |
672 | ||
673 | /* No BNF for numeric aggregates - that's defined by the caller. What | |
c57db45c SK |
674 | this function does is to parse a sequence of numbers separated by |
675 | the token specified in separator. If max is zero, any number of | |
63115431 TL |
676 | numbers will be parsed; otherwise, exactly max numbers are |
677 | expected. Base and size tell us how to internalize the numbers | |
678 | once they've been tokenized. */ | |
679 | ||
680 | unsigned char *parse_numeric_aggregate (cfile, buf, | |
c57db45c | 681 | max, separator, base, size) |
4615d498 | 682 | struct parse *cfile; |
63115431 | 683 | unsigned char *buf; |
b1b7b521 | 684 | unsigned *max; |
c57db45c | 685 | int separator; |
63115431 | 686 | int base; |
b1b7b521 | 687 | unsigned size; |
63115431 | 688 | { |
b1b7b521 | 689 | const char *val; |
02a015fb | 690 | enum dhcp_token token; |
63115431 | 691 | unsigned char *bufp = buf, *s, *t; |
b1b7b521 | 692 | unsigned count = 0; |
63115431 TL |
693 | pair c = (pair)0; |
694 | ||
695 | if (!bufp && *max) { | |
fdac15d9 | 696 | bufp = (unsigned char *)dmalloc (*max * size / 8, MDL); |
63115431 | 697 | if (!bufp) |
1ff8f8ea TL |
698 | log_fatal ("no space for numeric aggregate"); |
699 | s = 0; | |
63115431 TL |
700 | } else |
701 | s = bufp; | |
702 | ||
703 | do { | |
704 | if (count) { | |
b3519f23 | 705 | token = peek_token (&val, (unsigned *)0, cfile); |
c57db45c | 706 | if (token != separator) { |
63115431 TL |
707 | if (!*max) |
708 | break; | |
709 | if (token != RBRACE && token != LBRACE) | |
b3519f23 TL |
710 | token = next_token (&val, |
711 | (unsigned *)0, | |
712 | cfile); | |
4615d498 | 713 | parse_warn (cfile, "too few numbers."); |
63115431 TL |
714 | if (token != SEMI) |
715 | skip_to_semi (cfile); | |
716 | return (unsigned char *)0; | |
717 | } | |
b3519f23 | 718 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 719 | } |
b3519f23 | 720 | token = next_token (&val, (unsigned *)0, cfile); |
63115431 | 721 | |
0b69dcc8 | 722 | if (token == END_OF_FILE) { |
4615d498 | 723 | parse_warn (cfile, "unexpected end of file"); |
63115431 TL |
724 | break; |
725 | } | |
726 | ||
727 | /* Allow NUMBER_OR_NAME if base is 16. */ | |
728 | if (token != NUMBER && | |
729 | (base != 16 || token != NUMBER_OR_NAME)) { | |
4615d498 | 730 | parse_warn (cfile, "expecting numeric value."); |
63115431 TL |
731 | skip_to_semi (cfile); |
732 | return (unsigned char *)0; | |
733 | } | |
734 | /* If we can, convert the number now; otherwise, build | |
735 | a linked list of all the numbers. */ | |
736 | if (s) { | |
4615d498 | 737 | convert_num (cfile, s, val, base, size); |
63115431 TL |
738 | s += size / 8; |
739 | } else { | |
fdac15d9 | 740 | t = (unsigned char *)dmalloc (strlen (val) + 1, MDL); |
63115431 | 741 | if (!t) |
8ae2d595 | 742 | log_fatal ("no temp space for number."); |
338303a4 TL |
743 | strcpy ((char *)t, val); |
744 | c = cons ((caddr_t)t, c); | |
63115431 TL |
745 | } |
746 | } while (++count != *max); | |
747 | ||
748 | /* If we had to cons up a list, convert it now. */ | |
749 | if (c) { | |
fdac15d9 | 750 | bufp = (unsigned char *)dmalloc (count * size / 8, MDL); |
63115431 | 751 | if (!bufp) |
1ff8f8ea | 752 | log_fatal ("no space for numeric aggregate."); |
63115431 TL |
753 | s = bufp + count - size / 8; |
754 | *max = count; | |
755 | } | |
756 | while (c) { | |
757 | pair cdr = c -> cdr; | |
4615d498 | 758 | convert_num (cfile, s, (char *)(c -> car), base, size); |
63115431 TL |
759 | s -= size / 8; |
760 | /* Free up temp space. */ | |
fdac15d9 TL |
761 | dfree (c -> car, MDL); |
762 | dfree (c, MDL); | |
63115431 TL |
763 | c = cdr; |
764 | } | |
765 | return bufp; | |
766 | } | |
767 | ||
4615d498 TL |
768 | void convert_num (cfile, buf, str, base, size) |
769 | struct parse *cfile; | |
63115431 | 770 | unsigned char *buf; |
b1b7b521 | 771 | const char *str; |
63115431 | 772 | int base; |
b1b7b521 | 773 | unsigned size; |
63115431 | 774 | { |
28868515 | 775 | const unsigned char *ptr = (const unsigned char *)str; |
63115431 TL |
776 | int negative = 0; |
777 | u_int32_t val = 0; | |
778 | int tval; | |
779 | int max; | |
780 | ||
781 | if (*ptr == '-') { | |
782 | negative = 1; | |
783 | ++ptr; | |
784 | } | |
785 | ||
786 | /* If base wasn't specified, figure it out from the data. */ | |
787 | if (!base) { | |
788 | if (ptr [0] == '0') { | |
789 | if (ptr [1] == 'x') { | |
790 | base = 16; | |
791 | ptr += 2; | |
792 | } else if (isascii (ptr [1]) && isdigit (ptr [1])) { | |
793 | base = 8; | |
794 | ptr += 1; | |
795 | } else { | |
796 | base = 10; | |
797 | } | |
798 | } else { | |
799 | base = 10; | |
800 | } | |
801 | } | |
802 | ||
803 | do { | |
804 | tval = *ptr++; | |
805 | /* XXX assumes ASCII... */ | |
806 | if (tval >= 'a') | |
807 | tval = tval - 'a' + 10; | |
808 | else if (tval >= 'A') | |
809 | tval = tval - 'A' + 10; | |
810 | else if (tval >= '0') | |
811 | tval -= '0'; | |
812 | else { | |
4615d498 | 813 | parse_warn (cfile, "Bogus number: %s.", str); |
63115431 TL |
814 | break; |
815 | } | |
816 | if (tval >= base) { | |
4615d498 TL |
817 | parse_warn (cfile, |
818 | "Bogus number %s: digit %d not in base %d", | |
f420e08c | 819 | str, tval, base); |
63115431 TL |
820 | break; |
821 | } | |
822 | val = val * base + tval; | |
823 | } while (*ptr); | |
824 | ||
825 | if (negative) | |
826 | max = (1 << (size - 1)); | |
827 | else | |
828 | max = (1 << (size - 1)) + ((1 << (size - 1)) - 1); | |
829 | if (val > max) { | |
830 | switch (base) { | |
831 | case 8: | |
4615d498 | 832 | parse_warn (cfile, |
06afba54 | 833 | "%s%lo exceeds max (%d) for precision.", |
b3d594dd TL |
834 | negative ? "-" : "", |
835 | (unsigned long)val, max); | |
63115431 TL |
836 | break; |
837 | case 16: | |
4615d498 | 838 | parse_warn (cfile, |
06afba54 | 839 | "%s%lx exceeds max (%d) for precision.", |
b3d594dd TL |
840 | negative ? "-" : "", |
841 | (unsigned long)val, max); | |
63115431 TL |
842 | break; |
843 | default: | |
4615d498 | 844 | parse_warn (cfile, |
06afba54 | 845 | "%s%lu exceeds max (%d) for precision.", |
b3d594dd TL |
846 | negative ? "-" : "", |
847 | (unsigned long)val, max); | |
63115431 TL |
848 | break; |
849 | } | |
850 | } | |
851 | ||
852 | if (negative) { | |
853 | switch (size) { | |
854 | case 8: | |
855 | *buf = -(unsigned long)val; | |
856 | break; | |
857 | case 16: | |
b1b7b521 | 858 | putShort (buf, -(long)val); |
63115431 TL |
859 | break; |
860 | case 32: | |
b1b7b521 | 861 | putLong (buf, -(long)val); |
63115431 TL |
862 | break; |
863 | default: | |
4615d498 TL |
864 | parse_warn (cfile, |
865 | "Unexpected integer size: %d\n", size); | |
63115431 TL |
866 | break; |
867 | } | |
868 | } else { | |
869 | switch (size) { | |
870 | case 8: | |
871 | *buf = (u_int8_t)val; | |
872 | break; | |
873 | case 16: | |
874 | putUShort (buf, (u_int16_t)val); | |
875 | break; | |
876 | case 32: | |
877 | putULong (buf, val); | |
878 | break; | |
879 | default: | |
4615d498 TL |
880 | parse_warn (cfile, |
881 | "Unexpected integer size: %d\n", size); | |
63115431 TL |
882 | break; |
883 | } | |
884 | } | |
885 | } | |
886 | ||
be6be08d TL |
887 | /* |
888 | * date :== NUMBER NUMBER SLASH NUMBER SLASH NUMBER | |
83d409ae | 889 | * NUMBER COLON NUMBER COLON NUMBER | |
a82abfc7 | 890 | * NUMBER NUMBER SLASH NUMBER SLASH NUMBER |
83d409ae SR |
891 | * NUMBER COLON NUMBER COLON NUMBER NUMBER | |
892 | * EPOCH NUMBER | | |
be1ee858 | 893 | * NEVER |
be6be08d | 894 | * |
b1d3778c | 895 | * Dates are stored in UTC or with a timezone offset; first number is day |
a82abfc7 TL |
896 | * of week; next is year/month/day; next is hours:minutes:seconds on a |
897 | * 24-hour clock, followed by the timezone offset in seconds, which is | |
898 | * optional. | |
be6be08d | 899 | */ |
63115431 | 900 | |
83d409ae SR |
901 | /* |
902 | * just parse the date | |
903 | * any trailing semi must be consumed by the caller of this routine | |
904 | */ | |
b1d3778c DH |
905 | TIME |
906 | parse_date_core(cfile) | |
4615d498 | 907 | struct parse *cfile; |
63115431 | 908 | { |
63115431 | 909 | int guess; |
a82abfc7 | 910 | int tzoff, wday, year, mon, mday, hour, min, sec; |
b1b7b521 | 911 | const char *val; |
02a015fb | 912 | enum dhcp_token token; |
83d409ae SR |
913 | static int months[11] = { 31, 59, 90, 120, 151, 181, |
914 | 212, 243, 273, 304, 334 }; | |
63115431 | 915 | |
83d409ae SR |
916 | /* "never", "epoch" or day of week */ |
917 | token = peek_token(&val, NULL, cfile); | |
be1ee858 | 918 | if (token == NEVER) { |
83d409ae SR |
919 | token = next_token(&val, NULL, cfile); /* consume NEVER */ |
920 | return(MAX_TIME); | |
be1ee858 TL |
921 | } |
922 | ||
5e864416 DH |
923 | /* This indicates 'local' time format. */ |
924 | if (token == EPOCH) { | |
83d409ae SR |
925 | token = next_token(&val, NULL, cfile); /* consume EPOCH */ |
926 | token = peek_token(&val, NULL, cfile); | |
5e864416 DH |
927 | |
928 | if (token != NUMBER) { | |
5e864416 | 929 | if (token != SEMI) |
83d409ae SR |
930 | token = next_token(&val, NULL, cfile); |
931 | parse_warn(cfile, "Seconds since epoch expected."); | |
932 | return((TIME)0); | |
5e864416 DH |
933 | } |
934 | ||
83d409ae | 935 | token = next_token(&val, NULL, cfile); /* consume number */ |
5e864416 DH |
936 | guess = atoi(val); |
937 | ||
83d409ae | 938 | return((TIME)guess); |
5e864416 DH |
939 | } |
940 | ||
63115431 | 941 | if (token != NUMBER) { |
63115431 | 942 | if (token != SEMI) |
83d409ae SR |
943 | token = next_token(&val, NULL, cfile); |
944 | parse_warn(cfile, "numeric day of week expected."); | |
945 | return((TIME)0); | |
63115431 | 946 | } |
83d409ae SR |
947 | token = next_token(&val, NULL, cfile); /* consume day of week */ |
948 | wday = atoi(val); | |
63115431 TL |
949 | |
950 | /* Year... */ | |
83d409ae | 951 | token = peek_token(&val, NULL, cfile); |
63115431 | 952 | if (token != NUMBER) { |
63115431 | 953 | if (token != SEMI) |
83d409ae SR |
954 | token = next_token(&val, NULL, cfile); |
955 | parse_warn(cfile, "numeric year expected."); | |
956 | return((TIME)0); | |
63115431 | 957 | } |
83d409ae | 958 | token = next_token(&val, NULL, cfile); /* consume year */ |
edca2b1a TL |
959 | |
960 | /* Note: the following is not a Y2K bug - it's a Y1.9K bug. Until | |
961 | somebody invents a time machine, I think we can safely disregard | |
962 | it. This actually works around a stupid Y2K bug that was present | |
963 | in a very early beta release of dhcpd. */ | |
83d409ae | 964 | year = atoi(val); |
a82abfc7 TL |
965 | if (year > 1900) |
966 | year -= 1900; | |
63115431 | 967 | |
c57db45c | 968 | /* Slash separating year from month... */ |
83d409ae | 969 | token = peek_token(&val, NULL, cfile); |
63115431 | 970 | if (token != SLASH) { |
63115431 | 971 | if (token != SEMI) |
83d409ae SR |
972 | token = next_token(&val, NULL, cfile); |
973 | parse_warn(cfile, | |
974 | "expected slash separating year from month."); | |
975 | return((TIME)0); | |
63115431 | 976 | } |
83d409ae | 977 | token = next_token(&val, NULL, cfile); /* consume SLASH */ |
63115431 TL |
978 | |
979 | /* Month... */ | |
83d409ae | 980 | token = peek_token(&val, NULL, cfile); |
63115431 | 981 | if (token != NUMBER) { |
63115431 | 982 | if (token != SEMI) |
83d409ae SR |
983 | token = next_token(&val, NULL, cfile); |
984 | parse_warn(cfile, "numeric month expected."); | |
985 | return((TIME)0); | |
63115431 | 986 | } |
83d409ae SR |
987 | token = next_token(&val, NULL, cfile); /* consume month */ |
988 | mon = atoi(val) - 1; | |
63115431 | 989 | |
c57db45c | 990 | /* Slash separating month from day... */ |
83d409ae | 991 | token = peek_token(&val, NULL, cfile); |
63115431 | 992 | if (token != SLASH) { |
63115431 | 993 | if (token != SEMI) |
83d409ae SR |
994 | token = next_token(&val, NULL, cfile); |
995 | parse_warn(cfile, | |
996 | "expected slash separating month from day."); | |
997 | return((TIME)0); | |
63115431 | 998 | } |
83d409ae | 999 | token = next_token(&val, NULL, cfile); /* consume SLASH */ |
63115431 | 1000 | |
98311e4b | 1001 | /* Day of month... */ |
83d409ae | 1002 | token = peek_token(&val, NULL, cfile); |
63115431 | 1003 | if (token != NUMBER) { |
63115431 | 1004 | if (token != SEMI) |
83d409ae SR |
1005 | token = next_token(&val, NULL, cfile); |
1006 | parse_warn(cfile, "numeric day of month expected."); | |
1007 | return((TIME)0); | |
63115431 | 1008 | } |
83d409ae SR |
1009 | token = next_token(&val, NULL, cfile); /* consume day of month */ |
1010 | mday = atoi(val); | |
63115431 TL |
1011 | |
1012 | /* Hour... */ | |
83d409ae | 1013 | token = peek_token(&val, NULL, cfile); |
63115431 | 1014 | if (token != NUMBER) { |
63115431 | 1015 | if (token != SEMI) |
83d409ae SR |
1016 | token = next_token(&val, NULL, cfile); |
1017 | parse_warn(cfile, "numeric hour expected."); | |
1018 | return((TIME)0); | |
63115431 | 1019 | } |
83d409ae SR |
1020 | token = next_token(&val, NULL, cfile); /* consume hour */ |
1021 | hour = atoi(val); | |
63115431 | 1022 | |
c57db45c | 1023 | /* Colon separating hour from minute... */ |
83d409ae | 1024 | token = peek_token(&val, NULL, cfile); |
63115431 | 1025 | if (token != COLON) { |
63115431 | 1026 | if (token != SEMI) |
83d409ae SR |
1027 | token = next_token(&val, NULL, cfile); |
1028 | parse_warn(cfile, | |
1029 | "expected colon separating hour from minute."); | |
1030 | return((TIME)0); | |
63115431 | 1031 | } |
83d409ae | 1032 | token = next_token(&val, NULL, cfile); /* consume colon */ |
63115431 TL |
1033 | |
1034 | /* Minute... */ | |
83d409ae | 1035 | token = peek_token(&val, NULL, cfile); |
63115431 | 1036 | if (token != NUMBER) { |
63115431 | 1037 | if (token != SEMI) |
83d409ae SR |
1038 | token = next_token(&val, NULL, cfile); |
1039 | parse_warn(cfile, "numeric minute expected."); | |
1040 | return((TIME)0); | |
63115431 | 1041 | } |
83d409ae SR |
1042 | token = next_token(&val, NULL, cfile); /* consume minute */ |
1043 | min = atoi(val); | |
63115431 | 1044 | |
c57db45c | 1045 | /* Colon separating minute from second... */ |
83d409ae | 1046 | token = peek_token(&val, NULL, cfile); |
63115431 | 1047 | if (token != COLON) { |
63115431 | 1048 | if (token != SEMI) |
83d409ae SR |
1049 | token = next_token(&val, NULL, cfile); |
1050 | parse_warn(cfile, | |
1051 | "expected colon separating minute from second."); | |
1052 | return((TIME)0); | |
63115431 | 1053 | } |
83d409ae | 1054 | token = next_token(&val, NULL, cfile); /* consume colon */ |
63115431 | 1055 | |
67674ffb | 1056 | /* Second... */ |
83d409ae | 1057 | token = peek_token(&val, NULL, cfile); |
63115431 | 1058 | if (token != NUMBER) { |
63115431 | 1059 | if (token != SEMI) |
83d409ae SR |
1060 | token = next_token(&val, NULL, cfile); |
1061 | parse_warn(cfile, "numeric second expected."); | |
1062 | return((TIME)0); | |
63115431 | 1063 | } |
83d409ae SR |
1064 | token = next_token(&val, NULL, cfile); /* consume second */ |
1065 | sec = atoi(val); | |
63115431 | 1066 | |
83d409ae SR |
1067 | tzoff = 0; |
1068 | token = peek_token(&val, NULL, cfile); | |
a82abfc7 | 1069 | if (token == NUMBER) { |
83d409ae SR |
1070 | token = next_token(&val, NULL, cfile); /* consume tzoff */ |
1071 | tzoff = atoi(val); | |
1072 | } else if (token != SEMI) { | |
1073 | token = next_token(&val, NULL, cfile); | |
1074 | parse_warn(cfile, | |
1075 | "Time zone offset or semicolon expected."); | |
1076 | return((TIME)0); | |
1077 | } | |
63115431 | 1078 | |
63115431 | 1079 | /* Guess the time value... */ |
a82abfc7 TL |
1080 | guess = ((((((365 * (year - 70) + /* Days in years since '70 */ |
1081 | (year - 69) / 4 + /* Leap days since '70 */ | |
1082 | (mon /* Days in months this year */ | |
1083 | ? months [mon - 1] | |
63115431 | 1084 | : 0) + |
a82abfc7 TL |
1085 | (mon > 1 && /* Leap day this year */ |
1086 | !((year - 72) & 3)) + | |
1087 | mday - 1) * 24) + /* Day of month */ | |
1088 | hour) * 60) + | |
1089 | min) * 60) + sec + tzoff; | |
63115431 TL |
1090 | |
1091 | /* This guess could be wrong because of leap seconds or other | |
1092 | weirdness we don't know about that the system does. For | |
1093 | now, we're just going to accept the guess, but at some point | |
1094 | it might be nice to do a successive approximation here to | |
1095 | get an exact value. Even if the error is small, if the | |
1096 | server is restarted frequently (and thus the lease database | |
1097 | is reread), the error could accumulate into something | |
1098 | significant. */ | |
1099 | ||
83d409ae | 1100 | return((TIME)guess); |
63115431 | 1101 | } |
4761e04b | 1102 | |
83d409ae SR |
1103 | /* |
1104 | * Wrapper to consume the semicolon after the date | |
1105 | * :== date semi | |
1106 | */ | |
1107 | ||
b1d3778c DH |
1108 | TIME |
1109 | parse_date(cfile) | |
1110 | struct parse *cfile; | |
1111 | { | |
83d409ae | 1112 | TIME guess; |
b1d3778c DH |
1113 | guess = parse_date_core(cfile); |
1114 | ||
1115 | /* Make sure the date ends in a semicolon... */ | |
1116 | if (!parse_semi(cfile)) | |
83d409ae SR |
1117 | return((TIME)0); |
1118 | return(guess); | |
b1d3778c DH |
1119 | } |
1120 | ||
1121 | ||
1122 | ||
be6be08d TL |
1123 | /* |
1124 | * option-name :== IDENTIFIER | | |
1125 | IDENTIFIER . IDENTIFIER | |
1126 | */ | |
1127 | ||
f7fdb216 DH |
1128 | isc_result_t |
1129 | parse_option_name (cfile, allocate, known, opt) | |
4615d498 | 1130 | struct parse *cfile; |
6b4b0ec7 | 1131 | int allocate; |
b1b7b521 | 1132 | int *known; |
f7fdb216 | 1133 | struct option **opt; |
4761e04b | 1134 | { |
b1b7b521 | 1135 | const char *val; |
02a015fb | 1136 | enum dhcp_token token; |
6b4b0ec7 | 1137 | char *uname; |
4761e04b TL |
1138 | struct universe *universe; |
1139 | struct option *option; | |
d5341d9b | 1140 | unsigned code; |
4761e04b | 1141 | |
f7fdb216 | 1142 | if (opt == NULL) |
98bf1607 | 1143 | return DHCP_R_INVALIDARG; |
f7fdb216 | 1144 | |
b3519f23 | 1145 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1146 | if (!is_identifier (token)) { |
4615d498 TL |
1147 | parse_warn (cfile, |
1148 | "expecting identifier after option keyword."); | |
4761e04b TL |
1149 | if (token != SEMI) |
1150 | skip_to_semi (cfile); | |
98bf1607 | 1151 | return DHCP_R_BADPARSE; |
4761e04b | 1152 | } |
fdac15d9 | 1153 | uname = dmalloc (strlen (val) + 1, MDL); |
6b4b0ec7 TL |
1154 | if (!uname) |
1155 | log_fatal ("no memory for uname information."); | |
1156 | strcpy (uname, val); | |
b3519f23 | 1157 | token = peek_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1158 | if (token == DOT) { |
1159 | /* Go ahead and take the DOT token... */ | |
b3519f23 | 1160 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1161 | |
1162 | /* The next token should be an identifier... */ | |
b3519f23 | 1163 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1164 | if (!is_identifier (token)) { |
4615d498 | 1165 | parse_warn (cfile, "expecting identifier after '.'"); |
4761e04b TL |
1166 | if (token != SEMI) |
1167 | skip_to_semi (cfile); | |
98bf1607 | 1168 | return DHCP_R_BADPARSE; |
4761e04b TL |
1169 | } |
1170 | ||
1171 | /* Look up the option name hash table for the specified | |
6b4b0ec7 | 1172 | uname. */ |
20916cae TL |
1173 | universe = (struct universe *)0; |
1174 | if (!universe_hash_lookup (&universe, universe_hash, | |
1175 | uname, 0, MDL)) { | |
4615d498 | 1176 | parse_warn (cfile, "no option space named %s.", uname); |
4761e04b | 1177 | skip_to_semi (cfile); |
f7fdb216 | 1178 | return ISC_R_NOTFOUND; |
4761e04b TL |
1179 | } |
1180 | } else { | |
1181 | /* Use the default hash table, which contains all the | |
1182 | standard dhcp option names. */ | |
6b4b0ec7 | 1183 | val = uname; |
4761e04b TL |
1184 | universe = &dhcp_universe; |
1185 | } | |
1186 | ||
1187 | /* Look up the actual option info... */ | |
f7fdb216 DH |
1188 | option_name_hash_lookup(opt, universe->name_hash, val, 0, MDL); |
1189 | option = *opt; | |
4761e04b TL |
1190 | |
1191 | /* If we didn't get an option structure, it's an undefined option. */ | |
b1b7b521 | 1192 | if (option) { |
9a7f6fcd TL |
1193 | if (known) |
1194 | *known = 1; | |
d5341d9b SK |
1195 | /* If the option name is of the form unknown-[decimal], use |
1196 | * the trailing decimal value to find the option definition. | |
1197 | * If there is no definition, construct one. This is to | |
1198 | * support legacy use of unknown options in config files or | |
1199 | * lease databases. | |
1200 | */ | |
1201 | } else if (strncasecmp(val, "unknown-", 8) == 0) { | |
1202 | code = atoi(val+8); | |
f7fdb216 | 1203 | |
d5341d9b SK |
1204 | /* Option code 0 is always illegal for us, thanks |
1205 | * to the option decoder. | |
1206 | */ | |
1207 | if (code == 0 || code == universe->end) { | |
1208 | parse_warn(cfile, "Option codes 0 and %u are illegal " | |
1209 | "in the %s space.", universe->end, | |
1210 | universe->name); | |
1211 | skip_to_semi(cfile); | |
f7fdb216 | 1212 | dfree(uname, MDL); |
d5341d9b | 1213 | return ISC_R_FAILURE; |
6b4b0ec7 | 1214 | } |
d5341d9b SK |
1215 | |
1216 | /* It's odd to think of unknown option codes as | |
1217 | * being known, but this means we know what the | |
1218 | * parsed name is talking about. | |
1219 | */ | |
1220 | if (known) | |
1221 | *known = 1; | |
1222 | ||
1223 | option_code_hash_lookup(opt, universe->code_hash, | |
1224 | &code, 0, MDL); | |
1225 | option = *opt; | |
1226 | ||
1227 | /* If we did not find an option of that code, | |
1228 | * manufacture an unknown-xxx option definition. | |
1229 | * Its single reference will ensure that it is | |
1230 | * deleted once the option is recycled out of | |
1231 | * existence (by the parent). | |
1232 | */ | |
1233 | if (option == NULL) { | |
1234 | option = new_option(val, MDL); | |
1235 | option->universe = universe; | |
1236 | option->code = code; | |
399d3dbe | 1237 | option->format = default_option_format; |
d5341d9b SK |
1238 | option_reference(opt, option, MDL); |
1239 | } else | |
1240 | log_info("option %s has been redefined as option %s. " | |
1241 | "Please update your configs if neccessary.", | |
1242 | val, option->name); | |
1243 | /* If we've been told to allocate, that means that this | |
1244 | * (might) be an option code definition, so we'll create | |
1245 | * an option structure and return it for the parent to | |
1246 | * decide. | |
1247 | */ | |
1248 | } else if (allocate) { | |
1249 | option = new_option(val, MDL); | |
1250 | option -> universe = universe; | |
1251 | option_reference(opt, option, MDL); | |
1252 | } else { | |
1253 | parse_warn(cfile, "no option named %s in space %s", | |
1254 | val, universe->name); | |
4761e04b | 1255 | skip_to_semi (cfile); |
f7fdb216 DH |
1256 | dfree(uname, MDL); |
1257 | return ISC_R_NOTFOUND; | |
4761e04b TL |
1258 | } |
1259 | ||
1260 | /* Free the initial identifier token. */ | |
fdac15d9 | 1261 | dfree (uname, MDL); |
f7fdb216 | 1262 | return ISC_R_SUCCESS; |
4761e04b TL |
1263 | } |
1264 | ||
f7fdb216 DH |
1265 | /* IDENTIFIER [WIDTHS] SEMI |
1266 | * WIDTHS ~= LENGTH WIDTH NUMBER | |
1267 | * CODE WIDTH NUMBER | |
1268 | */ | |
52c9d530 TL |
1269 | |
1270 | void parse_option_space_decl (cfile) | |
4615d498 | 1271 | struct parse *cfile; |
52c9d530 TL |
1272 | { |
1273 | int token; | |
b1b7b521 | 1274 | const char *val; |
52c9d530 | 1275 | struct universe **ua, *nu; |
f7fdb216 DH |
1276 | char *nu_name; |
1277 | int tsize=1, lsize=1, hsize = 0; | |
52c9d530 | 1278 | |
b3519f23 TL |
1279 | next_token (&val, (unsigned *)0, cfile); /* Discard the SPACE token, |
1280 | which was checked by the | |
1281 | caller. */ | |
1282 | token = next_token (&val, (unsigned *)0, cfile); | |
52c9d530 | 1283 | if (!is_identifier (token)) { |
4615d498 | 1284 | parse_warn (cfile, "expecting identifier."); |
52c9d530 TL |
1285 | skip_to_semi (cfile); |
1286 | return; | |
1287 | } | |
4bd8800e | 1288 | nu = new_universe (MDL); |
52c9d530 TL |
1289 | if (!nu) |
1290 | log_fatal ("No memory for new option space."); | |
1291 | ||
1292 | /* Set up the server option universe... */ | |
f7fdb216 DH |
1293 | nu_name = dmalloc (strlen (val) + 1, MDL); |
1294 | if (!nu_name) | |
52c9d530 | 1295 | log_fatal ("No memory for new option space name."); |
f7fdb216 DH |
1296 | strcpy (nu_name, val); |
1297 | nu -> name = nu_name; | |
1298 | ||
1299 | do { | |
1300 | token = next_token(&val, NULL, cfile); | |
1301 | switch(token) { | |
1302 | case SEMI: | |
1303 | break; | |
1304 | ||
1305 | case CODE: | |
1306 | token = next_token(&val, NULL, cfile); | |
1307 | if (token != WIDTH) { | |
1308 | parse_warn(cfile, "expecting width token."); | |
1309 | goto bad; | |
1310 | } | |
1311 | ||
1312 | token = next_token(&val, NULL, cfile); | |
1313 | if (token != NUMBER) { | |
1314 | parse_warn(cfile, "expecting number 1, 2, 4."); | |
1315 | goto bad; | |
1316 | } | |
1317 | ||
1318 | tsize = atoi(val); | |
1319 | ||
1320 | ||
1321 | switch (tsize) { | |
1322 | case 1: | |
1323 | if (!hsize) | |
1324 | hsize = BYTE_NAME_HASH_SIZE; | |
1325 | break; | |
1326 | case 2: | |
1327 | if (!hsize) | |
1328 | hsize = WORD_NAME_HASH_SIZE; | |
1329 | break; | |
1330 | case 4: | |
1331 | if (!hsize) | |
1332 | hsize = QUAD_NAME_HASH_SIZE; | |
1333 | break; | |
1334 | default: | |
1335 | parse_warn(cfile, "invalid code width (%d), " | |
1336 | "expecting a 1, 2 or 4.", | |
d19e2cf7 | 1337 | tsize); |
f7fdb216 DH |
1338 | goto bad; |
1339 | } | |
1340 | break; | |
1341 | ||
1342 | case LENGTH: | |
1343 | token = next_token(&val, NULL, cfile); | |
1344 | if (token != WIDTH) { | |
1345 | parse_warn(cfile, "expecting width token."); | |
1346 | goto bad; | |
1347 | } | |
1348 | ||
1349 | token = next_token(&val, NULL, cfile); | |
1350 | if (token != NUMBER) { | |
1351 | parse_warn(cfile, "expecting number 1 or 2."); | |
1352 | goto bad; | |
1353 | } | |
1354 | ||
1355 | lsize = atoi(val); | |
1356 | if (lsize != 1 && lsize != 2) { | |
1357 | parse_warn(cfile, "invalid length width (%d) " | |
d19e2cf7 | 1358 | "expecting 1 or 2.", lsize); |
f7fdb216 DH |
1359 | goto bad; |
1360 | } | |
1361 | ||
1362 | break; | |
1363 | ||
1364 | case HASH: | |
1365 | token = next_token(&val, NULL, cfile); | |
1366 | if (token != SIZE) { | |
1367 | parse_warn(cfile, "expecting size token."); | |
1368 | goto bad; | |
1369 | } | |
1370 | ||
1371 | token = next_token(&val, NULL, cfile); | |
1372 | if (token != NUMBER) { | |
1373 | parse_warn(cfile, "expecting a 10base number"); | |
1374 | goto bad; | |
1375 | } | |
1376 | ||
1377 | /* (2^31)-1 is the highest Mersenne prime we should | |
1378 | * probably allow... | |
1379 | */ | |
1380 | hsize = atoi(val); | |
1381 | if (hsize < 0 || hsize > 0x7FFFFFFF) { | |
1382 | parse_warn(cfile, "invalid hash length: %d", | |
1383 | hsize); | |
1384 | goto bad; | |
1385 | } | |
1386 | ||
1387 | break; | |
1388 | ||
1389 | default: | |
1390 | parse_warn(cfile, "Unexpected token."); | |
1391 | } | |
1392 | } while (token != SEMI); | |
1393 | ||
1394 | if (!hsize) | |
1395 | hsize = DEFAULT_SPACE_HASH_SIZE; | |
1396 | ||
52c9d530 | 1397 | nu -> lookup_func = lookup_hashed_option; |
f7fdb216 | 1398 | nu -> option_state_dereference = hashed_option_state_dereference; |
f769d5ac | 1399 | nu -> foreach = hashed_option_space_foreach; |
52c9d530 TL |
1400 | nu -> save_func = save_hashed_option; |
1401 | nu -> delete_func = delete_hashed_option; | |
1402 | nu -> encapsulate = hashed_option_space_encapsulate; | |
962dc4ab | 1403 | nu -> decode = parse_option_buffer; |
f7fdb216 DH |
1404 | nu -> length_size = lsize; |
1405 | nu -> tag_size = tsize; | |
1406 | switch(tsize) { | |
1407 | case 1: | |
1408 | nu->get_tag = getUChar; | |
1409 | nu->store_tag = putUChar; | |
1410 | break; | |
1411 | case 2: | |
1412 | nu->get_tag = getUShort; | |
1413 | nu->store_tag = putUShort; | |
1414 | break; | |
1415 | case 4: | |
1416 | nu->get_tag = getULong; | |
1417 | nu->store_tag = putULong; | |
1418 | break; | |
1419 | default: | |
1420 | log_fatal("Impossible condition at %s:%d.", MDL); | |
1421 | } | |
1422 | switch(lsize) { | |
98bd7ca0 DH |
1423 | case 0: |
1424 | nu->get_length = NULL; | |
1425 | nu->store_length = NULL; | |
1426 | break; | |
f7fdb216 DH |
1427 | case 1: |
1428 | nu->get_length = getUChar; | |
1429 | nu->store_length = putUChar; | |
1430 | break; | |
1431 | case 2: | |
1432 | nu->get_length = getUShort; | |
1433 | nu->store_length = putUShort; | |
1434 | break; | |
1435 | default: | |
1436 | log_fatal("Impossible condition at %s:%d.", MDL); | |
1437 | } | |
52c9d530 TL |
1438 | nu -> index = universe_count++; |
1439 | if (nu -> index >= universe_max) { | |
fdac15d9 | 1440 | ua = dmalloc (universe_max * 2 * sizeof *ua, MDL); |
52c9d530 TL |
1441 | if (!ua) |
1442 | log_fatal ("No memory to expand option space array."); | |
1443 | memcpy (ua, universes, universe_max * sizeof *ua); | |
1444 | universe_max *= 2; | |
fdac15d9 | 1445 | dfree (universes, MDL); |
52c9d530 TL |
1446 | universes = ua; |
1447 | } | |
1448 | universes [nu -> index] = nu; | |
f7fdb216 DH |
1449 | if (!option_name_new_hash(&nu->name_hash, hsize, MDL) || |
1450 | !option_code_new_hash(&nu->code_hash, hsize, MDL)) | |
1451 | log_fatal("Can't allocate %s option hash table.", nu->name); | |
20916cae | 1452 | universe_hash_add (universe_hash, nu -> name, 0, nu, MDL); |
f7fdb216 DH |
1453 | return; |
1454 | ||
1455 | bad: | |
1456 | dfree(nu_name, MDL); | |
1457 | dfree(nu, MDL); | |
52c9d530 TL |
1458 | } |
1459 | ||
6b4b0ec7 TL |
1460 | /* This is faked up to look good right now. Ideally, this should do a |
1461 | recursive parse and allow arbitrary data structure definitions, but for | |
1462 | now it just allows you to specify a single type, an array of single types, | |
1463 | a sequence of types, or an array of sequences of types. | |
1464 | ||
1465 | ocd :== NUMBER EQUALS ocsd SEMI | |
1466 | ||
1467 | ocsd :== ocsd_type | | |
1468 | ocsd_type_sequence | | |
d8fc5060 | 1469 | ARRAY OF ocsd_simple_type_sequence |
6b4b0ec7 TL |
1470 | |
1471 | ocsd_type_sequence :== LBRACE ocsd_types RBRACE | |
1472 | ||
d8fc5060 TL |
1473 | ocsd_simple_type_sequence :== LBRACE ocsd_simple_types RBRACE |
1474 | ||
1475 | ocsd_types :== ocsd_type | | |
1476 | ocsd_types ocsd_type | |
1477 | ||
1478 | ocsd_type :== ocsd_simple_type | | |
1479 | ARRAY OF ocsd_simple_type | |
1480 | ||
1481 | ocsd_simple_types :== ocsd_simple_type | | |
1482 | ocsd_simple_types ocsd_simple_type | |
1483 | ||
1484 | ocsd_simple_type :== BOOLEAN | | |
1485 | INTEGER NUMBER | | |
1486 | SIGNED INTEGER NUMBER | | |
1487 | UNSIGNED INTEGER NUMBER | | |
1488 | IP-ADDRESS | | |
1489 | TEXT | | |
962dc4ab TL |
1490 | STRING | |
1491 | ENCAPSULATE identifier */ | |
6b4b0ec7 TL |
1492 | |
1493 | int parse_option_code_definition (cfile, option) | |
4615d498 | 1494 | struct parse *cfile; |
6b4b0ec7 TL |
1495 | struct option *option; |
1496 | { | |
b1b7b521 | 1497 | const char *val; |
6b4b0ec7 | 1498 | enum dhcp_token token; |
f7fdb216 | 1499 | struct option *oldopt; |
b1b7b521 | 1500 | unsigned arrayp = 0; |
6b4b0ec7 TL |
1501 | int recordp = 0; |
1502 | int no_more_in_record = 0; | |
1503 | char tokbuf [128]; | |
b1b7b521 | 1504 | unsigned tokix = 0; |
6b4b0ec7 | 1505 | char type; |
6b4b0ec7 | 1506 | int is_signed; |
b1b7b521 | 1507 | char *s; |
962dc4ab | 1508 | int has_encapsulation = 0; |
98bd7ca0 | 1509 | struct universe *encapsulated; |
6b4b0ec7 TL |
1510 | |
1511 | /* Parse the option code. */ | |
b3519f23 | 1512 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1513 | if (token != NUMBER) { |
4615d498 | 1514 | parse_warn (cfile, "expecting option code number."); |
6b4b0ec7 TL |
1515 | skip_to_semi (cfile); |
1516 | return 0; | |
1517 | } | |
1518 | option -> code = atoi (val); | |
1519 | ||
b3519f23 | 1520 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1521 | if (token != EQUAL) { |
4615d498 | 1522 | parse_warn (cfile, "expecting \"=\""); |
6b4b0ec7 TL |
1523 | skip_to_semi (cfile); |
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | /* See if this is an array. */ | |
b3519f23 | 1528 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1529 | if (token == ARRAY) { |
b3519f23 | 1530 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1531 | if (token != OF) { |
4615d498 | 1532 | parse_warn (cfile, "expecting \"of\"."); |
6b4b0ec7 TL |
1533 | skip_to_semi (cfile); |
1534 | return 0; | |
1535 | } | |
1536 | arrayp = 1; | |
b3519f23 | 1537 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1538 | } |
1539 | ||
1540 | if (token == LBRACE) { | |
1541 | recordp = 1; | |
b3519f23 | 1542 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1543 | } |
1544 | ||
1545 | /* At this point we're expecting a data type. */ | |
1546 | next_type: | |
962dc4ab TL |
1547 | if (has_encapsulation) { |
1548 | parse_warn (cfile, | |
1549 | "encapsulate must always be the last item."); | |
1550 | skip_to_semi (cfile); | |
1551 | return 0; | |
1552 | } | |
1553 | ||
6b4b0ec7 | 1554 | switch (token) { |
d8fc5060 TL |
1555 | case ARRAY: |
1556 | if (arrayp) { | |
1557 | parse_warn (cfile, "no nested arrays."); | |
1558 | skip_to_rbrace (cfile, recordp); | |
1559 | if (recordp) | |
1560 | skip_to_semi (cfile); | |
1561 | return 0; | |
1562 | } | |
b3519f23 | 1563 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1564 | if (token != OF) { |
1565 | parse_warn (cfile, "expecting \"of\"."); | |
1566 | skip_to_semi (cfile); | |
1567 | return 0; | |
1568 | } | |
1569 | arrayp = recordp + 1; | |
b3519f23 | 1570 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1571 | if ((recordp) && (token == LBRACE)) { |
1572 | parse_warn (cfile, | |
1573 | "only uniform array inside record."); | |
1574 | skip_to_rbrace (cfile, recordp + 1); | |
1575 | skip_to_semi (cfile); | |
1576 | return 0; | |
1577 | } | |
1578 | goto next_type; | |
6b4b0ec7 TL |
1579 | case BOOLEAN: |
1580 | type = 'f'; | |
1581 | break; | |
1582 | case INTEGER: | |
1583 | is_signed = 1; | |
1584 | parse_integer: | |
b3519f23 | 1585 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1586 | if (token != NUMBER) { |
4615d498 | 1587 | parse_warn (cfile, "expecting number."); |
6b4b0ec7 TL |
1588 | skip_to_rbrace (cfile, recordp); |
1589 | if (recordp) | |
1590 | skip_to_semi (cfile); | |
1591 | return 0; | |
1592 | } | |
1593 | switch (atoi (val)) { | |
1594 | case 8: | |
1595 | type = is_signed ? 'b' : 'B'; | |
1596 | break; | |
1597 | case 16: | |
1598 | type = is_signed ? 's' : 'S'; | |
1599 | break; | |
1600 | case 32: | |
1601 | type = is_signed ? 'l' : 'L'; | |
1602 | break; | |
1603 | default: | |
4615d498 TL |
1604 | parse_warn (cfile, |
1605 | "%s bit precision is not supported.", val); | |
6b4b0ec7 TL |
1606 | skip_to_rbrace (cfile, recordp); |
1607 | if (recordp) | |
1608 | skip_to_semi (cfile); | |
1609 | return 0; | |
1610 | } | |
1611 | break; | |
1612 | case SIGNED: | |
1613 | is_signed = 1; | |
1614 | parse_signed: | |
b3519f23 | 1615 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 | 1616 | if (token != INTEGER) { |
4615d498 | 1617 | parse_warn (cfile, "expecting \"integer\" keyword."); |
6b4b0ec7 TL |
1618 | skip_to_rbrace (cfile, recordp); |
1619 | if (recordp) | |
1620 | skip_to_semi (cfile); | |
1621 | return 0; | |
1622 | } | |
1623 | goto parse_integer; | |
1624 | case UNSIGNED: | |
1625 | is_signed = 0; | |
1626 | goto parse_signed; | |
1627 | ||
1628 | case IP_ADDRESS: | |
1629 | type = 'I'; | |
1630 | break; | |
98bd7ca0 DH |
1631 | case IP6_ADDRESS: |
1632 | type = '6'; | |
1633 | break; | |
d758ad8c TL |
1634 | case DOMAIN_NAME: |
1635 | type = 'd'; | |
1636 | goto no_arrays; | |
dba5803b | 1637 | case DOMAIN_LIST: |
98bd7ca0 DH |
1638 | /* Consume optional compression indicator. */ |
1639 | token = peek_token(&val, NULL, cfile); | |
1640 | if (token == COMPRESSED) { | |
1641 | token = next_token(&val, NULL, cfile); | |
1642 | tokbuf[tokix++] = 'D'; | |
1643 | type = 'c'; | |
1644 | } else | |
1645 | type = 'D'; | |
dba5803b | 1646 | goto no_arrays; |
6b4b0ec7 TL |
1647 | case TEXT: |
1648 | type = 't'; | |
1649 | no_arrays: | |
1650 | if (arrayp) { | |
4615d498 | 1651 | parse_warn (cfile, "arrays of text strings not %s", |
6b4b0ec7 TL |
1652 | "yet supported."); |
1653 | skip_to_rbrace (cfile, recordp); | |
1654 | if (recordp) | |
1655 | skip_to_semi (cfile); | |
1656 | return 0; | |
1657 | } | |
1658 | no_more_in_record = 1; | |
1659 | break; | |
ef91cb39 | 1660 | case STRING_TOKEN: |
6b4b0ec7 TL |
1661 | type = 'X'; |
1662 | goto no_arrays; | |
1663 | ||
962dc4ab | 1664 | case ENCAPSULATE: |
b3519f23 | 1665 | token = next_token (&val, (unsigned *)0, cfile); |
962dc4ab TL |
1666 | if (!is_identifier (token)) { |
1667 | parse_warn (cfile, | |
1668 | "expecting option space identifier"); | |
1669 | skip_to_semi (cfile); | |
1670 | return 0; | |
1671 | } | |
98bd7ca0 DH |
1672 | encapsulated = NULL; |
1673 | if (!universe_hash_lookup(&encapsulated, universe_hash, | |
1674 | val, strlen(val), MDL)) { | |
a512d11b | 1675 | parse_warn(cfile, "unknown option space %s", val); |
98bd7ca0 DH |
1676 | skip_to_semi (cfile); |
1677 | return 0; | |
1678 | } | |
962dc4ab TL |
1679 | if (strlen (val) + tokix + 2 > sizeof (tokbuf)) |
1680 | goto toobig; | |
1681 | tokbuf [tokix++] = 'E'; | |
1682 | strcpy (&tokbuf [tokix], val); | |
1683 | tokix += strlen (val); | |
1684 | type = '.'; | |
1685 | has_encapsulation = 1; | |
1686 | break; | |
1687 | ||
4cafb815 EH |
1688 | case ZEROLEN: |
1689 | type = 'Z'; | |
1690 | if (arrayp) { | |
1691 | parse_warn (cfile, "array incompatible with zerolen."); | |
1692 | skip_to_rbrace (cfile, recordp); | |
1693 | if (recordp) | |
1694 | skip_to_semi (cfile); | |
1695 | return 0; | |
1696 | } | |
1697 | no_more_in_record = 1; | |
1698 | break; | |
1699 | ||
6b4b0ec7 | 1700 | default: |
4615d498 | 1701 | parse_warn (cfile, "unknown data type %s", val); |
6b4b0ec7 TL |
1702 | skip_to_rbrace (cfile, recordp); |
1703 | if (recordp) | |
1704 | skip_to_semi (cfile); | |
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | if (tokix == sizeof tokbuf) { | |
962dc4ab | 1709 | toobig: |
4615d498 | 1710 | parse_warn (cfile, "too many types in record."); |
6b4b0ec7 TL |
1711 | skip_to_rbrace (cfile, recordp); |
1712 | if (recordp) | |
1713 | skip_to_semi (cfile); | |
1714 | return 0; | |
1715 | } | |
1716 | tokbuf [tokix++] = type; | |
1717 | ||
1718 | if (recordp) { | |
b3519f23 | 1719 | token = next_token (&val, (unsigned *)0, cfile); |
d8fc5060 TL |
1720 | if (arrayp > recordp) { |
1721 | if (tokix == sizeof tokbuf) { | |
1722 | parse_warn (cfile, | |
1723 | "too many types in record."); | |
1724 | skip_to_rbrace (cfile, 1); | |
1725 | skip_to_semi (cfile); | |
1726 | return 0; | |
1727 | } | |
1728 | arrayp = 0; | |
1729 | tokbuf[tokix++] = 'a'; | |
1730 | } | |
6b4b0ec7 TL |
1731 | if (token == COMMA) { |
1732 | if (no_more_in_record) { | |
4615d498 TL |
1733 | parse_warn (cfile, |
1734 | "%s must be at end of record.", | |
6b4b0ec7 TL |
1735 | type == 't' ? "text" : "string"); |
1736 | skip_to_rbrace (cfile, 1); | |
1737 | if (recordp) | |
1738 | skip_to_semi (cfile); | |
1739 | return 0; | |
1740 | } | |
b3519f23 | 1741 | token = next_token (&val, (unsigned *)0, cfile); |
6b4b0ec7 TL |
1742 | goto next_type; |
1743 | } | |
1744 | if (token != RBRACE) { | |
4615d498 | 1745 | parse_warn (cfile, "expecting right brace."); |
6b4b0ec7 TL |
1746 | skip_to_rbrace (cfile, 1); |
1747 | if (recordp) | |
1748 | skip_to_semi (cfile); | |
1749 | return 0; | |
1750 | } | |
1751 | } | |
1752 | if (!parse_semi (cfile)) { | |
4615d498 | 1753 | parse_warn (cfile, "semicolon expected."); |
6b4b0ec7 TL |
1754 | skip_to_semi (cfile); |
1755 | if (recordp) | |
1756 | skip_to_semi (cfile); | |
1757 | return 0; | |
1758 | } | |
962dc4ab TL |
1759 | if (has_encapsulation && arrayp) { |
1760 | parse_warn (cfile, | |
1761 | "Arrays of encapsulations don't make sense."); | |
1762 | return 0; | |
1763 | } | |
98bd7ca0 DH |
1764 | s = dmalloc(tokix + (arrayp ? 1 : 0) + 1, MDL); |
1765 | if (s == NULL) { | |
1766 | log_fatal("no memory for option format."); | |
1767 | } | |
1768 | memcpy(s, tokbuf, tokix); | |
1769 | if (arrayp) { | |
1770 | s[tokix++] = (arrayp > recordp) ? 'a' : 'A'; | |
1771 | } | |
1772 | s[tokix] = '\0'; | |
1773 | ||
b1b7b521 | 1774 | option -> format = s; |
f7fdb216 DH |
1775 | |
1776 | oldopt = NULL; | |
1777 | option_code_hash_lookup(&oldopt, option->universe->code_hash, | |
1778 | &option->code, 0, MDL); | |
86f1d4b7 DH |
1779 | if (oldopt != NULL) { |
1780 | /* | |
1781 | * XXX: This illegalizes a configuration syntax that was | |
1782 | * valid in 3.0.x, where multiple name->code mappings are | |
1783 | * given, but only one code->name mapping survives. It is | |
1784 | * unclear what can or should be done at this point, but it | |
1785 | * seems best to retain 3.0.x behaviour for upgrades to go | |
1786 | * smoothly. | |
1787 | * | |
f7fdb216 DH |
1788 | option_name_hash_delete(option->universe->name_hash, |
1789 | oldopt->name, 0, MDL); | |
86f1d4b7 | 1790 | */ |
f7fdb216 DH |
1791 | option_code_hash_delete(option->universe->code_hash, |
1792 | &oldopt->code, 0, MDL); | |
1793 | ||
1794 | option_dereference(&oldopt, MDL); | |
6b4b0ec7 | 1795 | } |
f7fdb216 DH |
1796 | option_code_hash_add(option->universe->code_hash, &option->code, 0, |
1797 | option, MDL); | |
1798 | option_name_hash_add(option->universe->name_hash, option->name, 0, | |
1799 | option, MDL); | |
98bd7ca0 DH |
1800 | if (has_encapsulation) { |
1801 | /* INSIST(tokbuf[0] == 'E'); */ | |
1802 | /* INSIST(encapsulated != NULL); */ | |
1803 | if (!option_code_hash_lookup(&encapsulated->enc_opt, | |
1804 | option->universe->code_hash, | |
1805 | &option->code, 0, MDL)) { | |
1806 | log_fatal("error finding encapsulated option (%s:%d)", | |
1807 | MDL); | |
1808 | } | |
1809 | } | |
6b4b0ec7 TL |
1810 | return 1; |
1811 | } | |
1812 | ||
028b1f6a TL |
1813 | /* |
1814 | * base64 :== NUMBER_OR_STRING | |
1815 | */ | |
1816 | ||
1817 | int parse_base64 (data, cfile) | |
1818 | struct data_string *data; | |
1819 | struct parse *cfile; | |
1820 | { | |
1821 | enum dhcp_token token; | |
1822 | const char *val; | |
8f01f9ec | 1823 | int i, j, k; |
028b1f6a | 1824 | unsigned acc = 0; |
6b474b5b TL |
1825 | static unsigned char |
1826 | from64 [] = {64, 64, 64, 64, 64, 64, 64, 64, /* \"#$%&' */ | |
1827 | 64, 64, 64, 62, 64, 64, 64, 63, /* ()*+,-./ */ | |
1828 | 52, 53, 54, 55, 56, 57, 58, 59, /* 01234567 */ | |
d758ad8c | 1829 | 60, 61, 64, 64, 64, 64, 64, 64, /* 89:;<=>? */ |
6b474b5b TL |
1830 | 64, 0, 1, 2, 3, 4, 5, 6, /* @ABCDEFG */ |
1831 | 7, 8, 9, 10, 11, 12, 13, 14, /* HIJKLMNO */ | |
1832 | 15, 16, 17, 18, 19, 20, 21, 22, /* PQRSTUVW */ | |
1833 | 23, 24, 25, 64, 64, 64, 64, 64, /* XYZ[\]^_ */ | |
1834 | 64, 26, 27, 28, 29, 30, 31, 32, /* 'abcdefg */ | |
1835 | 33, 34, 35, 36, 37, 38, 39, 40, /* hijklmno */ | |
1836 | 41, 42, 43, 44, 45, 46, 47, 48, /* pqrstuvw */ | |
630786fc | 1837 | 49, 50, 51, 64, 64, 64, 64, 64}; /* xyz{|}~ */ |
8f01f9ec TL |
1838 | struct string_list *bufs = (struct string_list *)0, |
1839 | *last = (struct string_list *)0, | |
1840 | *t; | |
1841 | int cc = 0; | |
1842 | int terminated = 0; | |
028b1f6a | 1843 | |
8f01f9ec TL |
1844 | /* It's possible for a + or a / to cause a base64 quantity to be |
1845 | tokenized into more than one token, so we have to parse them all | |
1846 | in before decoding. */ | |
1847 | do { | |
b3519f23 | 1848 | unsigned l; |
8f01f9ec | 1849 | |
b3519f23 | 1850 | token = next_token (&val, &l, cfile); |
8f01f9ec TL |
1851 | t = dmalloc (l + sizeof *t, MDL); |
1852 | if (!t) | |
1853 | log_fatal ("no memory for base64 buffer."); | |
1854 | memset (t, 0, (sizeof *t) - 1); | |
b3519f23 | 1855 | memcpy (t -> string, val, l + 1); |
8f01f9ec TL |
1856 | cc += l; |
1857 | if (last) | |
1858 | last -> next = t; | |
1859 | else | |
1860 | bufs = t; | |
1861 | last = t; | |
b3519f23 | 1862 | token = peek_token (&val, (unsigned *)0, cfile); |
8f01f9ec | 1863 | } while (token == NUMBER_OR_NAME || token == NAME || token == EQUAL || |
2f98b84e TL |
1864 | token == NUMBER || token == PLUS || token == SLASH || |
1865 | token == STRING); | |
8f01f9ec TL |
1866 | |
1867 | data -> len = cc; | |
028b1f6a TL |
1868 | data -> len = (data -> len * 3) / 4; |
1869 | if (!buffer_allocate (&data -> buffer, data -> len, MDL)) { | |
1870 | parse_warn (cfile, "can't allocate buffer for base64 data."); | |
1871 | data -> len = 0; | |
1872 | data -> data = (unsigned char *)0; | |
1873 | return 0; | |
1874 | } | |
1875 | ||
8f01f9ec TL |
1876 | j = k = 0; |
1877 | for (t = bufs; t; t = t -> next) { | |
1878 | for (i = 0; t -> string [i]; i++) { | |
1879 | unsigned foo = t -> string [i]; | |
1880 | if (terminated && foo != '=') { | |
1881 | parse_warn (cfile, | |
1882 | "stuff after base64 '=' terminator: %s.", | |
1883 | &t -> string [i]); | |
1884 | goto bad; | |
1885 | } | |
028b1f6a TL |
1886 | if (foo < ' ' || foo > 'z') { |
1887 | bad64: | |
1888 | parse_warn (cfile, | |
8f01f9ec TL |
1889 | "invalid base64 character %d.", |
1890 | t -> string [i]); | |
1891 | bad: | |
028b1f6a | 1892 | data_string_forget (data, MDL); |
8f01f9ec | 1893 | goto out; |
028b1f6a | 1894 | } |
8f01f9ec TL |
1895 | if (foo == '=') |
1896 | terminated = 1; | |
1897 | else { | |
1898 | foo = from64 [foo - ' ']; | |
1899 | if (foo == 64) | |
1900 | goto bad64; | |
1901 | acc = (acc << 6) + foo; | |
1902 | switch (k % 4) { | |
1903 | case 0: | |
1904 | break; | |
1905 | case 1: | |
1906 | data -> buffer -> data [j++] = (acc >> 4); | |
1907 | acc = acc & 0x0f; | |
1908 | break; | |
1909 | ||
1910 | case 2: | |
1911 | data -> buffer -> data [j++] = (acc >> 2); | |
1912 | acc = acc & 0x03; | |
1913 | break; | |
1914 | case 3: | |
1915 | data -> buffer -> data [j++] = acc; | |
1916 | acc = 0; | |
1917 | break; | |
1918 | } | |
1919 | } | |
1920 | k++; | |
1921 | } | |
1922 | } | |
1923 | if (k % 4) { | |
1924 | if (acc) { | |
1925 | parse_warn (cfile, | |
1926 | "partial base64 value left over: %d.", | |
1927 | acc); | |
028b1f6a TL |
1928 | } |
1929 | } | |
028b1f6a TL |
1930 | data -> len = j; |
1931 | data -> data = data -> buffer -> data; | |
8f01f9ec TL |
1932 | out: |
1933 | for (t = bufs; t; t = last) { | |
1934 | last = t -> next; | |
1935 | dfree (t, MDL); | |
1936 | } | |
1937 | if (data -> len) | |
1938 | return 1; | |
1939 | else | |
1940 | return 0; | |
028b1f6a TL |
1941 | } |
1942 | ||
1943 | ||
be6be08d | 1944 | /* |
c57db45c SK |
1945 | * colon-separated-hex-list :== NUMBER | |
1946 | * NUMBER COLON colon-separated-hex-list | |
be6be08d TL |
1947 | */ |
1948 | ||
02a015fb TL |
1949 | int parse_cshl (data, cfile) |
1950 | struct data_string *data; | |
4615d498 | 1951 | struct parse *cfile; |
4761e04b | 1952 | { |
c5b0f529 | 1953 | u_int8_t ibuf [128]; |
b1b7b521 TL |
1954 | unsigned ilen = 0; |
1955 | unsigned tlen = 0; | |
4761e04b TL |
1956 | struct option_tag *sl = (struct option_tag *)0; |
1957 | struct option_tag *next, **last = &sl; | |
02a015fb | 1958 | enum dhcp_token token; |
b1b7b521 | 1959 | const char *val; |
02a015fb | 1960 | unsigned char *rvp; |
4761e04b TL |
1961 | |
1962 | do { | |
b3519f23 | 1963 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b | 1964 | if (token != NUMBER && token != NUMBER_OR_NAME) { |
4615d498 | 1965 | parse_warn (cfile, "expecting hexadecimal number."); |
4761e04b TL |
1966 | skip_to_semi (cfile); |
1967 | for (; sl; sl = next) { | |
1968 | next = sl -> next; | |
fdac15d9 | 1969 | dfree (sl, MDL); |
4761e04b | 1970 | } |
02a015fb | 1971 | return 0; |
4761e04b TL |
1972 | } |
1973 | if (ilen == sizeof ibuf) { | |
1974 | next = (struct option_tag *) | |
1975 | dmalloc (ilen - 1 + | |
fdac15d9 | 1976 | sizeof (struct option_tag), MDL); |
4761e04b | 1977 | if (!next) |
8ae2d595 | 1978 | log_fatal ("no memory for string list."); |
4761e04b TL |
1979 | memcpy (next -> data, ibuf, ilen); |
1980 | *last = next; | |
1981 | last = &next -> next; | |
1982 | tlen += ilen; | |
1983 | ilen = 0; | |
1984 | } | |
4615d498 | 1985 | convert_num (cfile, &ibuf [ilen++], val, 16, 8); |
4761e04b | 1986 | |
b3519f23 | 1987 | token = peek_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1988 | if (token != COLON) |
1989 | break; | |
b3519f23 | 1990 | token = next_token (&val, (unsigned *)0, cfile); |
4761e04b TL |
1991 | } while (1); |
1992 | ||
4bd8800e | 1993 | if (!buffer_allocate (&data -> buffer, tlen + ilen, MDL)) |
8ae2d595 | 1994 | log_fatal ("no memory to store octet data."); |
02a015fb TL |
1995 | data -> data = &data -> buffer -> data [0]; |
1996 | data -> len = tlen + ilen; | |
1997 | data -> terminated = 0; | |
1998 | ||
b1b7b521 | 1999 | rvp = &data -> buffer -> data [0]; |
4761e04b TL |
2000 | while (sl) { |
2001 | next = sl -> next; | |
2002 | memcpy (rvp, sl -> data, sizeof ibuf); | |
2003 | rvp += sizeof ibuf; | |
fdac15d9 | 2004 | dfree (sl, MDL); |
4761e04b TL |
2005 | sl = next; |
2006 | } | |
2007 | ||
2008 | memcpy (rvp, ibuf, ilen); | |
02a015fb | 2009 | return 1; |
4761e04b | 2010 | } |
be6be08d TL |
2011 | |
2012 | /* | |
2013 | * executable-statements :== executable-statement executable-statements | | |
2014 | * executable-statement | |
2015 | * | |
2016 | * executable-statement :== | |
2017 | * IF if-statement | | |
2018 | * ADD class-name SEMI | | |
2019 | * BREAK SEMI | | |
2020 | * OPTION option-parameter SEMI | | |
2021 | * SUPERSEDE option-parameter SEMI | | |
2022 | * PREPEND option-parameter SEMI | | |
2023 | * APPEND option-parameter SEMI | |
2024 | */ | |
2025 | ||
f579f39f | 2026 | int parse_executable_statements (statements, cfile, lose, case_context) |
79a65726 | 2027 | struct executable_statement **statements; |
4615d498 | 2028 | struct parse *cfile; |
be6be08d | 2029 | int *lose; |
f579f39f | 2030 | enum expression_context case_context; |
be6be08d | 2031 | { |
79a65726 | 2032 | struct executable_statement **next; |
be6be08d | 2033 | |
79a65726 | 2034 | next = statements; |
f579f39f | 2035 | while (parse_executable_statement (next, cfile, lose, case_context)) |
be6be08d | 2036 | next = &((*next) -> next); |
02a015fb | 2037 | if (!*lose) |
79a65726 TL |
2038 | return 1; |
2039 | return 0; | |
be6be08d TL |
2040 | } |
2041 | ||
f579f39f | 2042 | int parse_executable_statement (result, cfile, lose, case_context) |
79a65726 | 2043 | struct executable_statement **result; |
4615d498 | 2044 | struct parse *cfile; |
be6be08d | 2045 | int *lose; |
f579f39f | 2046 | enum expression_context case_context; |
be6be08d | 2047 | { |
66cebfcb DH |
2048 | #if defined(ENABLE_EXECUTE) |
2049 | unsigned len; | |
2050 | struct expression **ep; | |
2051 | #endif | |
02a015fb | 2052 | enum dhcp_token token; |
b1b7b521 | 2053 | const char *val; |
be6be08d | 2054 | struct class *cta; |
272ef1bc | 2055 | struct option *option=NULL; |
b1013db7 | 2056 | struct option_cache *cache; |
b1b7b521 | 2057 | int known; |
0776fd12 | 2058 | int flag; |
88ab5737 | 2059 | int i; |
fa392aea | 2060 | struct dns_zone *zone; |
fa392aea | 2061 | isc_result_t status; |
d758ad8c | 2062 | char *s; |
be6be08d | 2063 | |
b3519f23 | 2064 | token = peek_token (&val, (unsigned *)0, cfile); |
b1013db7 | 2065 | switch (token) { |
5e864416 DH |
2066 | case DB_TIME_FORMAT: |
2067 | next_token(&val, NULL, cfile); | |
2068 | ||
2069 | token = next_token(&val, NULL, cfile); | |
2070 | if (token == DEFAULT) { | |
2071 | db_time_format = DEFAULT_TIME_FORMAT; | |
2072 | } else if (token == LOCAL) { | |
2073 | db_time_format = LOCAL_TIME_FORMAT; | |
2074 | } else { | |
2075 | parse_warn(cfile, "Expecting 'local' or 'default'."); | |
2076 | if (token != SEMI) | |
2077 | skip_to_semi(cfile); | |
2078 | *lose = 1; | |
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | token = next_token(&val, NULL, cfile); | |
2083 | if (token != SEMI) { | |
2084 | parse_warn(cfile, "Expecting a semicolon."); | |
2085 | *lose = 1; | |
2086 | return 0; | |
2087 | } | |
2088 | ||
2089 | /* We're done here. */ | |
2090 | return 1; | |
2091 | ||
be6be08d | 2092 | case IF: |
b3519f23 | 2093 | next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
2094 | return parse_if_statement (result, cfile, lose); |
2095 | ||
eb018e2b | 2096 | case TOKEN_ADD: |
b3519f23 TL |
2097 | token = next_token (&val, (unsigned *)0, cfile); |
2098 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 2099 | if (token != STRING) { |
4615d498 | 2100 | parse_warn (cfile, "expecting class name."); |
be6be08d TL |
2101 | skip_to_semi (cfile); |
2102 | *lose = 1; | |
79a65726 | 2103 | return 0; |
be6be08d | 2104 | } |
20916cae TL |
2105 | cta = (struct class *)0; |
2106 | status = find_class (&cta, val, MDL); | |
2107 | if (status != ISC_R_SUCCESS) { | |
2108 | parse_warn (cfile, "class %s: %s", | |
2109 | val, isc_result_totext (status)); | |
be6be08d TL |
2110 | skip_to_semi (cfile); |
2111 | *lose = 1; | |
79a65726 | 2112 | return 0; |
be6be08d TL |
2113 | } |
2114 | if (!parse_semi (cfile)) { | |
2115 | *lose = 1; | |
79a65726 | 2116 | return 0; |
be6be08d | 2117 | } |
4bd8800e | 2118 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2119 | log_fatal ("no memory for new statement."); |
2120 | (*result) -> op = add_statement; | |
2121 | (*result) -> data.add = cta; | |
be6be08d TL |
2122 | break; |
2123 | ||
2124 | case BREAK: | |
b3519f23 | 2125 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
2126 | if (!parse_semi (cfile)) { |
2127 | *lose = 1; | |
79a65726 | 2128 | return 0; |
be6be08d | 2129 | } |
4bd8800e | 2130 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2131 | log_fatal ("no memory for new statement."); |
2132 | (*result) -> op = break_statement; | |
be6be08d TL |
2133 | break; |
2134 | ||
25541f2f | 2135 | case SEND: |
b3519f23 | 2136 | token = next_token (&val, (unsigned *)0, cfile); |
1898dcf7 | 2137 | known = 0; |
f7fdb216 DH |
2138 | status = parse_option_name (cfile, 0, &known, &option); |
2139 | if (status != ISC_R_SUCCESS || option == NULL) { | |
1898dcf7 TL |
2140 | *lose = 1; |
2141 | return 0; | |
2142 | } | |
f7fdb216 DH |
2143 | status = parse_option_statement(result, cfile, 1, option, |
2144 | send_option_statement); | |
2145 | option_dereference(&option, MDL); | |
2146 | return status; | |
25541f2f TL |
2147 | |
2148 | case SUPERSEDE: | |
be6be08d | 2149 | case OPTION: |
b3519f23 | 2150 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2151 | known = 0; |
f7fdb216 DH |
2152 | status = parse_option_name (cfile, 0, &known, &option); |
2153 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2154 | *lose = 1; |
79a65726 | 2155 | return 0; |
be6be08d | 2156 | } |
f7fdb216 DH |
2157 | status = parse_option_statement(result, cfile, 1, option, |
2158 | supersede_option_statement); | |
2159 | option_dereference(&option, MDL); | |
2160 | return status; | |
be6be08d | 2161 | |
b1013db7 | 2162 | case ALLOW: |
0776fd12 TL |
2163 | flag = 1; |
2164 | goto pad; | |
b1013db7 | 2165 | case DENY: |
0776fd12 TL |
2166 | flag = 0; |
2167 | goto pad; | |
2168 | case IGNORE: | |
2169 | flag = 2; | |
2170 | pad: | |
b3519f23 | 2171 | token = next_token (&val, (unsigned *)0, cfile); |
b1013db7 | 2172 | cache = (struct option_cache *)0; |
2db25842 | 2173 | if (!parse_allow_deny (&cache, cfile, flag)) |
79a65726 | 2174 | return 0; |
4bd8800e | 2175 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
2176 | log_fatal ("no memory for new statement."); |
2177 | (*result) -> op = supersede_option_statement; | |
2178 | (*result) -> data.option = cache; | |
b1013db7 TL |
2179 | break; |
2180 | ||
be6be08d | 2181 | case DEFAULT: |
b3519f23 TL |
2182 | token = next_token (&val, (unsigned *)0, cfile); |
2183 | token = peek_token (&val, (unsigned *)0, cfile); | |
f579f39f TL |
2184 | if (token == COLON) |
2185 | goto switch_default; | |
b1b7b521 | 2186 | known = 0; |
f7fdb216 DH |
2187 | status = parse_option_name (cfile, 0, &known, &option); |
2188 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2189 | *lose = 1; |
79a65726 | 2190 | return 0; |
be6be08d | 2191 | } |
f7fdb216 DH |
2192 | status = parse_option_statement(result, cfile, 1, option, |
2193 | default_option_statement); | |
2194 | option_dereference(&option, MDL); | |
2195 | return status; | |
be6be08d TL |
2196 | |
2197 | case PREPEND: | |
b3519f23 | 2198 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2199 | known = 0; |
f7fdb216 DH |
2200 | status = parse_option_name (cfile, 0, &known, &option); |
2201 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2202 | *lose = 1; |
79a65726 | 2203 | return 0; |
be6be08d | 2204 | } |
f7fdb216 DH |
2205 | status = parse_option_statement(result, cfile, 1, option, |
2206 | prepend_option_statement); | |
2207 | option_dereference(&option, MDL); | |
2208 | return status; | |
be6be08d TL |
2209 | |
2210 | case APPEND: | |
b3519f23 | 2211 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 2212 | known = 0; |
f7fdb216 DH |
2213 | status = parse_option_name (cfile, 0, &known, &option); |
2214 | if (status != ISC_R_SUCCESS || option == NULL) { | |
be6be08d | 2215 | *lose = 1; |
79a65726 | 2216 | return 0; |
be6be08d | 2217 | } |
f7fdb216 DH |
2218 | status = parse_option_statement(result, cfile, 1, option, |
2219 | append_option_statement); | |
2220 | option_dereference(&option, MDL); | |
2221 | return status; | |
be6be08d | 2222 | |
79a65726 | 2223 | case ON: |
b3519f23 | 2224 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
2225 | return parse_on_statement (result, cfile, lose); |
2226 | ||
f579f39f | 2227 | case SWITCH: |
b3519f23 | 2228 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2229 | return parse_switch_statement (result, cfile, lose); |
2230 | ||
2231 | case CASE: | |
b3519f23 | 2232 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2233 | if (case_context == context_any) { |
2234 | parse_warn (cfile, | |
2235 | "case statement in inappropriate scope."); | |
2236 | *lose = 1; | |
2237 | skip_to_semi (cfile); | |
2238 | return 0; | |
2239 | } | |
2240 | return parse_case_statement (result, | |
2241 | cfile, lose, case_context); | |
2242 | ||
2243 | switch_default: | |
b3519f23 | 2244 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2245 | if (case_context == context_any) { |
2246 | parse_warn (cfile, "switch default statement in %s", | |
2247 | "inappropriate scope."); | |
2248 | ||
2249 | *lose = 1; | |
2250 | return 0; | |
2251 | } else { | |
4bd8800e | 2252 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
2253 | log_fatal ("no memory for default statement."); |
2254 | (*result) -> op = default_statement; | |
2255 | return 1; | |
2256 | } | |
2257 | ||
31cb2a5f | 2258 | case DEFINE: |
f579f39f | 2259 | case TOKEN_SET: |
b3519f23 | 2260 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2261 | if (token == DEFINE) |
2262 | flag = 1; | |
2263 | else | |
2264 | flag = 0; | |
f579f39f | 2265 | |
b3519f23 | 2266 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
2267 | if (token != NAME && token != NUMBER_OR_NAME) { |
2268 | parse_warn (cfile, | |
2269 | "%s can't be a variable name", val); | |
2270 | badset: | |
2271 | skip_to_semi (cfile); | |
2272 | *lose = 1; | |
2273 | return 0; | |
2274 | } | |
2275 | ||
4bd8800e | 2276 | if (!executable_statement_allocate (result, MDL)) |
f579f39f | 2277 | log_fatal ("no memory for set statement."); |
31cb2a5f | 2278 | (*result) -> op = flag ? define_statement : set_statement; |
fdac15d9 | 2279 | (*result) -> data.set.name = dmalloc (strlen (val) + 1, MDL); |
f579f39f TL |
2280 | if (!(*result)->data.set.name) |
2281 | log_fatal ("can't allocate variable name"); | |
2282 | strcpy ((*result) -> data.set.name, val); | |
b3519f23 | 2283 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f | 2284 | |
31cb2a5f TL |
2285 | if (token == LPAREN) { |
2286 | struct string_list *head, *cur, *new; | |
2287 | struct expression *expr; | |
2288 | head = cur = (struct string_list *)0; | |
2289 | do { | |
b3519f23 TL |
2290 | token = next_token (&val, |
2291 | (unsigned *)0, cfile); | |
31cb2a5f TL |
2292 | if (token == RPAREN) |
2293 | break; | |
2294 | if (token != NAME && token != NUMBER_OR_NAME) { | |
2295 | parse_warn (cfile, | |
2296 | "expecting argument name"); | |
2297 | skip_to_rbrace (cfile, 0); | |
2298 | *lose = 1; | |
2299 | executable_statement_dereference | |
2300 | (result, MDL); | |
2301 | return 0; | |
2302 | } | |
2303 | new = ((struct string_list *) | |
2304 | dmalloc (sizeof (struct string_list) + | |
2305 | strlen (val), MDL)); | |
2306 | if (!new) | |
2307 | log_fatal ("can't allocate string."); | |
2308 | memset (new, 0, sizeof *new); | |
2309 | strcpy (new -> string, val); | |
2310 | if (cur) { | |
2311 | cur -> next = new; | |
2312 | cur = new; | |
2313 | } else { | |
2314 | head = cur = new; | |
2315 | } | |
b3519f23 TL |
2316 | token = next_token (&val, |
2317 | (unsigned *)0, cfile); | |
31cb2a5f TL |
2318 | } while (token == COMMA); |
2319 | ||
2320 | if (token != RPAREN) { | |
2321 | parse_warn (cfile, "expecting right paren."); | |
2322 | badx: | |
2323 | skip_to_semi (cfile); | |
f579f39f | 2324 | *lose = 1; |
31cb2a5f TL |
2325 | executable_statement_dereference (result, MDL); |
2326 | return 0; | |
2327 | } | |
2328 | ||
b3519f23 | 2329 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2330 | if (token != LBRACE) { |
2331 | parse_warn (cfile, "expecting left brace."); | |
2332 | goto badx; | |
2333 | } | |
2334 | ||
2335 | expr = (struct expression *)0; | |
2336 | if (!(expression_allocate (&expr, MDL))) | |
2337 | log_fatal ("can't allocate expression."); | |
2338 | expr -> op = expr_function; | |
2339 | if (!fundef_allocate (&expr -> data.func, MDL)) | |
2340 | log_fatal ("can't allocate fundef."); | |
2341 | expr -> data.func -> args = head; | |
2342 | (*result) -> data.set.expr = expr; | |
2343 | ||
2344 | if (!(parse_executable_statements | |
2345 | (&expr -> data.func -> statements, cfile, lose, | |
2346 | case_context))) { | |
2347 | if (*lose) | |
2348 | goto badx; | |
2349 | } | |
2350 | ||
b3519f23 | 2351 | token = next_token (&val, (unsigned *)0, cfile); |
31cb2a5f TL |
2352 | if (token != RBRACE) { |
2353 | parse_warn (cfile, "expecting rigt brace."); | |
2354 | goto badx; | |
2355 | } | |
2356 | } else { | |
2357 | if (token != EQUAL) { | |
2358 | parse_warn (cfile, | |
2359 | "expecting '=' in %s statement.", | |
2360 | flag ? "define" : "set"); | |
2361 | goto badset; | |
2362 | } | |
2363 | ||
2364 | if (!parse_expression (&(*result) -> data.set.expr, | |
2365 | cfile, lose, context_any, | |
2366 | (struct expression **)0, | |
2367 | expr_none)) { | |
2368 | if (!*lose) | |
2369 | parse_warn (cfile, | |
2370 | "expecting expression."); | |
2371 | else | |
2372 | *lose = 1; | |
2373 | skip_to_semi (cfile); | |
2374 | executable_statement_dereference (result, MDL); | |
2375 | return 0; | |
2376 | } | |
98311e4b DH |
2377 | if (!parse_semi (cfile)) { |
2378 | *lose = 1; | |
2379 | executable_statement_dereference (result, MDL); | |
2380 | return 0; | |
2381 | } | |
f579f39f | 2382 | } |
f579f39f TL |
2383 | break; |
2384 | ||
fdac15d9 | 2385 | case UNSET: |
b3519f23 | 2386 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 2387 | |
b3519f23 | 2388 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
2389 | if (token != NAME && token != NUMBER_OR_NAME) { |
2390 | parse_warn (cfile, | |
2391 | "%s can't be a variable name", val); | |
fdac15d9 TL |
2392 | skip_to_semi (cfile); |
2393 | *lose = 1; | |
2394 | return 0; | |
2395 | } | |
2396 | ||
4bd8800e | 2397 | if (!executable_statement_allocate (result, MDL)) |
fdac15d9 TL |
2398 | log_fatal ("no memory for set statement."); |
2399 | (*result) -> op = unset_statement; | |
2400 | (*result) -> data.unset = dmalloc (strlen (val) + 1, MDL); | |
2401 | if (!(*result)->data.unset) | |
2402 | log_fatal ("can't allocate variable name"); | |
2403 | strcpy ((*result) -> data.unset, val); | |
98311e4b DH |
2404 | if (!parse_semi (cfile)) { |
2405 | *lose = 1; | |
2406 | executable_statement_dereference (result, MDL); | |
2407 | return 0; | |
2408 | } | |
fdac15d9 TL |
2409 | break; |
2410 | ||
2411 | case EVAL: | |
b3519f23 | 2412 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 2413 | |
4bd8800e | 2414 | if (!executable_statement_allocate (result, MDL)) |
fdac15d9 TL |
2415 | log_fatal ("no memory for eval statement."); |
2416 | (*result) -> op = eval_statement; | |
2417 | ||
2418 | if (!parse_expression (&(*result) -> data.eval, | |
2419 | cfile, lose, context_data, /* XXX */ | |
2420 | (struct expression **)0, expr_none)) { | |
2421 | if (!*lose) | |
2422 | parse_warn (cfile, | |
2423 | "expecting data expression."); | |
2424 | else | |
2425 | *lose = 1; | |
2426 | skip_to_semi (cfile); | |
4bd8800e | 2427 | executable_statement_dereference (result, MDL); |
fdac15d9 TL |
2428 | return 0; |
2429 | } | |
98311e4b DH |
2430 | if (!parse_semi (cfile)) { |
2431 | *lose = 1; | |
2432 | executable_statement_dereference (result, MDL); | |
2433 | } | |
fdac15d9 TL |
2434 | break; |
2435 | ||
253c8b6a EH |
2436 | case EXECUTE: |
2437 | #ifdef ENABLE_EXECUTE | |
2438 | token = next_token(&val, NULL, cfile); | |
2439 | ||
2440 | if (!executable_statement_allocate (result, MDL)) | |
2441 | log_fatal ("no memory for execute statement."); | |
2442 | (*result)->op = execute_statement; | |
2443 | ||
2444 | token = next_token(&val, NULL, cfile); | |
2445 | if (token != LPAREN) { | |
2446 | parse_warn(cfile, "left parenthesis expected."); | |
2447 | skip_to_semi(cfile); | |
2448 | *lose = 1; | |
2449 | return 0; | |
2450 | } | |
2451 | ||
2452 | token = next_token(&val, &len, cfile); | |
2453 | if (token != STRING) { | |
2454 | parse_warn(cfile, "Expecting a quoted string."); | |
2455 | skip_to_semi(cfile); | |
2456 | *lose = 1; | |
2457 | return 0; | |
2458 | } | |
2459 | ||
2460 | (*result)->data.execute.command = dmalloc(len + 1, MDL); | |
2461 | if ((*result)->data.execute.command == NULL) | |
2462 | log_fatal("can't allocate command name"); | |
2463 | strcpy((*result)->data.execute.command, val); | |
2464 | ||
2465 | ep = &(*result)->data.execute.arglist; | |
2466 | (*result)->data.execute.argc = 0; | |
2467 | ||
2468 | while((token = next_token(&val, NULL, cfile)) == COMMA) { | |
2469 | if (!expression_allocate(ep, MDL)) | |
2470 | log_fatal ("can't allocate expression"); | |
2471 | ||
2472 | if (!parse_data_expression (&(*ep) -> data.arg.val, | |
2473 | cfile, lose)) { | |
2474 | if (!*lose) { | |
2475 | parse_warn (cfile, | |
2476 | "expecting expression."); | |
2477 | *lose = 1; | |
2478 | } | |
2479 | skip_to_semi(cfile); | |
2480 | *lose = 1; | |
2481 | return 0; | |
2482 | } | |
2483 | ep = &(*ep)->data.arg.next; | |
2484 | (*result)->data.execute.argc++; | |
2485 | } | |
2486 | ||
2487 | if (token != RPAREN) { | |
2488 | parse_warn(cfile, "right parenthesis expected."); | |
2489 | skip_to_semi(cfile); | |
2490 | *lose = 1; | |
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | if (!parse_semi (cfile)) { | |
2495 | *lose = 1; | |
2496 | executable_statement_dereference (result, MDL); | |
2497 | } | |
2498 | #else /* ! ENABLE_EXECUTE */ | |
2499 | parse_warn(cfile, "define ENABLE_EXECUTE in site.h to " | |
2500 | "enable execute(); expressions."); | |
2501 | skip_to_semi(cfile); | |
2502 | *lose = 1; | |
2503 | return 0; | |
2504 | #endif /* ENABLE_EXECUTE */ | |
2505 | break; | |
2506 | ||
1b234d44 | 2507 | case RETURN: |
b3519f23 | 2508 | token = next_token (&val, (unsigned *)0, cfile); |
1b234d44 DN |
2509 | |
2510 | if (!executable_statement_allocate (result, MDL)) | |
2511 | log_fatal ("no memory for return statement."); | |
2512 | (*result) -> op = return_statement; | |
2513 | ||
2514 | if (!parse_expression (&(*result) -> data.retval, | |
2515 | cfile, lose, context_data, | |
2516 | (struct expression **)0, expr_none)) { | |
2517 | if (!*lose) | |
2518 | parse_warn (cfile, | |
2519 | "expecting data expression."); | |
2520 | else | |
2521 | *lose = 1; | |
2522 | skip_to_semi (cfile); | |
2523 | executable_statement_dereference (result, MDL); | |
2524 | return 0; | |
2525 | } | |
98311e4b DH |
2526 | if (!parse_semi (cfile)) { |
2527 | *lose = 1; | |
2528 | executable_statement_dereference (result, MDL); | |
2529 | return 0; | |
2530 | } | |
1b234d44 DN |
2531 | break; |
2532 | ||
e7a9c293 | 2533 | case LOG: |
b3519f23 | 2534 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2535 | |
2536 | if (!executable_statement_allocate (result, MDL)) | |
2537 | log_fatal ("no memory for log statement."); | |
2538 | (*result) -> op = log_statement; | |
2539 | ||
b3519f23 | 2540 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2541 | if (token != LPAREN) { |
2542 | parse_warn (cfile, "left parenthesis expected."); | |
2543 | skip_to_semi (cfile); | |
2544 | *lose = 1; | |
2545 | return 0; | |
2546 | } | |
2547 | ||
b3519f23 | 2548 | token = peek_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2549 | i = 1; |
2550 | if (token == FATAL) { | |
2551 | (*result) -> data.log.priority = log_priority_fatal; | |
2552 | } else if (token == ERROR) { | |
2553 | (*result) -> data.log.priority = log_priority_error; | |
2554 | } else if (token == TOKEN_DEBUG) { | |
2555 | (*result) -> data.log.priority = log_priority_debug; | |
2556 | } else if (token == INFO) { | |
2557 | (*result) -> data.log.priority = log_priority_info; | |
2558 | } else { | |
2559 | (*result) -> data.log.priority = log_priority_debug; | |
2560 | i = 0; | |
2561 | } | |
2562 | if (i) { | |
b3519f23 TL |
2563 | token = next_token (&val, (unsigned *)0, cfile); |
2564 | token = next_token (&val, (unsigned *)0, cfile); | |
e7a9c293 DN |
2565 | if (token != COMMA) { |
2566 | parse_warn (cfile, "comma expected."); | |
2567 | skip_to_semi (cfile); | |
2568 | *lose = 1; | |
2569 | return 0; | |
2570 | } | |
2571 | } | |
2572 | ||
2573 | if (!(parse_data_expression | |
2574 | (&(*result) -> data.log.expr, cfile, lose))) { | |
2575 | skip_to_semi (cfile); | |
2576 | *lose = 1; | |
2577 | return 0; | |
2578 | } | |
2579 | ||
b3519f23 | 2580 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2581 | if (token != RPAREN) { |
2582 | parse_warn (cfile, "right parenthesis expected."); | |
2583 | skip_to_semi (cfile); | |
2584 | *lose = 1; | |
2585 | return 0; | |
2586 | } | |
2587 | ||
b3519f23 | 2588 | token = next_token (&val, (unsigned *)0, cfile); |
e7a9c293 DN |
2589 | if (token != SEMI) { |
2590 | parse_warn (cfile, "semicolon expected."); | |
2591 | skip_to_semi (cfile); | |
2592 | *lose = 1; | |
2593 | return 0; | |
2594 | } | |
2595 | break; | |
5e864416 | 2596 | |
fa392aea TL |
2597 | /* Not really a statement, but we parse it here anyway |
2598 | because it's appropriate for all DHCP agents with | |
2599 | parsers. */ | |
2600 | case ZONE: | |
b3519f23 | 2601 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a | 2602 | zone = (struct dns_zone *)0; |
fa392aea TL |
2603 | if (!dns_zone_allocate (&zone, MDL)) |
2604 | log_fatal ("no memory for new zone."); | |
2605 | zone -> name = parse_host_name (cfile); | |
2606 | if (!zone -> name) { | |
e7a9c293 | 2607 | parse_warn (cfile, "expecting hostname."); |
98311e4b | 2608 | badzone: |
fa392aea TL |
2609 | *lose = 1; |
2610 | skip_to_semi (cfile); | |
2611 | dns_zone_dereference (&zone, MDL); | |
2612 | return 0; | |
2613 | } | |
88ab5737 TL |
2614 | i = strlen (zone -> name); |
2615 | if (zone -> name [i - 1] != '.') { | |
d758ad8c | 2616 | s = dmalloc ((unsigned)i + 2, MDL); |
98311e4b DH |
2617 | if (!s) { |
2618 | parse_warn (cfile, "no trailing '.' on zone"); | |
d758ad8c | 2619 | goto badzone; |
98311e4b | 2620 | } |
d758ad8c TL |
2621 | strcpy (s, zone -> name); |
2622 | s [i] = '.'; | |
2623 | s [i + 1] = 0; | |
2624 | dfree (zone -> name, MDL); | |
2625 | zone -> name = s; | |
88ab5737 | 2626 | } |
fa392aea TL |
2627 | if (!parse_zone (zone, cfile)) |
2628 | goto badzone; | |
fa392aea | 2629 | status = enter_dns_zone (zone); |
fa392aea | 2630 | if (status != ISC_R_SUCCESS) { |
98311e4b DH |
2631 | parse_warn (cfile, "dns zone key %s: %s", |
2632 | zone -> name, isc_result_totext (status)); | |
fa392aea TL |
2633 | dns_zone_dereference (&zone, MDL); |
2634 | return 0; | |
2635 | } | |
d758ad8c | 2636 | dns_zone_dereference (&zone, MDL); |
fa392aea TL |
2637 | return 1; |
2638 | ||
2639 | /* Also not really a statement, but same idea as above. */ | |
028b1f6a | 2640 | case KEY: |
b3519f23 | 2641 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a | 2642 | if (!parse_key (cfile)) { |
fa392aea | 2643 | *lose = 1; |
fa392aea TL |
2644 | return 0; |
2645 | } | |
028b1f6a | 2646 | return 1; |
e7a9c293 | 2647 | |
be6be08d | 2648 | default: |
588af269 | 2649 | if (config_universe && is_identifier (token)) { |
20916cae | 2650 | option = (struct option *)0; |
f7fdb216 DH |
2651 | option_name_hash_lookup(&option, |
2652 | config_universe->name_hash, | |
2653 | val, 0, MDL); | |
588af269 | 2654 | if (option) { |
b3519f23 TL |
2655 | token = next_token (&val, |
2656 | (unsigned *)0, cfile); | |
f7fdb216 DH |
2657 | status = parse_option_statement |
2658 | (result, cfile, 1, option, | |
2659 | supersede_option_statement); | |
2660 | option_dereference(&option, MDL); | |
2661 | return status; | |
588af269 TL |
2662 | } |
2663 | } | |
1b234d44 DN |
2664 | |
2665 | if (token == NUMBER_OR_NAME || token == NAME) { | |
2666 | /* This is rather ugly. Since function calls are | |
2667 | data expressions, fake up an eval statement. */ | |
2668 | if (!executable_statement_allocate (result, MDL)) | |
2669 | log_fatal ("no memory for eval statement."); | |
2670 | (*result) -> op = eval_statement; | |
2671 | ||
2672 | if (!parse_expression (&(*result) -> data.eval, | |
2673 | cfile, lose, context_data, | |
2674 | (struct expression **)0, | |
2675 | expr_none)) { | |
2676 | if (!*lose) | |
2677 | parse_warn (cfile, "expecting " | |
2678 | "function call."); | |
2679 | else | |
2680 | *lose = 1; | |
2681 | skip_to_semi (cfile); | |
2682 | executable_statement_dereference (result, MDL); | |
2683 | return 0; | |
2684 | } | |
98311e4b DH |
2685 | if (!parse_semi (cfile)) { |
2686 | *lose = 1; | |
2687 | executable_statement_dereference (result, MDL); | |
2688 | return 0; | |
2689 | } | |
1b234d44 DN |
2690 | break; |
2691 | } | |
2692 | ||
be6be08d | 2693 | *lose = 0; |
79a65726 | 2694 | return 0; |
be6be08d TL |
2695 | } |
2696 | ||
79a65726 TL |
2697 | return 1; |
2698 | } | |
2699 | ||
fa392aea TL |
2700 | /* zone-statements :== zone-statement | |
2701 | zone-statement zone-statements | |
2702 | zone-statement :== | |
2703 | PRIMARY ip-addresses SEMI | | |
2704 | SECONDARY ip-addresses SEMI | | |
d424157d SR |
2705 | PRIMARY6 ip-address6 SEMI | |
2706 | SECONDARY6 ip-address6 SEMI | | |
028b1f6a TL |
2707 | key-reference SEMI |
2708 | ip-addresses :== ip-addr-or-hostname | | |
2709 | ip-addr-or-hostname COMMA ip-addresses | |
2710 | key-reference :== KEY STRING | | |
2711 | KEY identifier */ | |
fa392aea TL |
2712 | |
2713 | int parse_zone (struct dns_zone *zone, struct parse *cfile) | |
2714 | { | |
2715 | int token; | |
2716 | const char *val; | |
630786fc | 2717 | char *key_name; |
fa392aea TL |
2718 | struct option_cache *oc; |
2719 | int done = 0; | |
2720 | ||
b3519f23 | 2721 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2722 | if (token != LBRACE) { |
2723 | parse_warn (cfile, "expecting left brace"); | |
2724 | return 0; | |
2725 | } | |
2726 | ||
fa392aea | 2727 | do { |
b3519f23 | 2728 | token = peek_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2729 | switch (token) { |
2730 | case PRIMARY: | |
2731 | if (zone -> primary) { | |
2732 | parse_warn (cfile, | |
2733 | "more than one primary."); | |
2734 | skip_to_semi (cfile); | |
2735 | return 0; | |
2736 | } | |
2737 | if (!option_cache_allocate (&zone -> primary, MDL)) | |
2738 | log_fatal ("can't allocate primary option cache."); | |
2739 | oc = zone -> primary; | |
2740 | goto consemup; | |
2741 | ||
2742 | case SECONDARY: | |
2743 | if (zone -> secondary) { | |
2744 | parse_warn (cfile, "more than one secondary."); | |
2745 | skip_to_semi (cfile); | |
2746 | return 0; | |
2747 | } | |
2748 | if (!option_cache_allocate (&zone -> secondary, MDL)) | |
2749 | log_fatal ("can't allocate secondary."); | |
2750 | oc = zone -> secondary; | |
2751 | consemup: | |
b3519f23 | 2752 | token = next_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2753 | do { |
2754 | struct expression *expr = (struct expression *)0; | |
2755 | if (!parse_ip_addr_or_hostname (&expr, cfile, 0)) { | |
2756 | parse_warn (cfile, | |
2757 | "expecting IP addr or hostname."); | |
2758 | skip_to_semi (cfile); | |
2759 | return 0; | |
2760 | } | |
2761 | if (oc -> expression) { | |
2762 | struct expression *old = | |
2763 | (struct expression *)0; | |
2764 | expression_reference (&old, | |
2765 | oc -> expression, | |
2766 | MDL); | |
2767 | expression_dereference (&oc -> expression, | |
2768 | MDL); | |
2769 | if (!make_concat (&oc -> expression, | |
2770 | old, expr)) | |
2771 | log_fatal ("no memory for concat."); | |
2772 | expression_dereference (&expr, MDL); | |
2773 | expression_dereference (&old, MDL); | |
2774 | } else { | |
2775 | expression_reference (&oc -> expression, | |
2776 | expr, MDL); | |
2777 | expression_dereference (&expr, MDL); | |
2778 | } | |
b3519f23 | 2779 | token = next_token (&val, (unsigned *)0, cfile); |
fa392aea TL |
2780 | } while (token == COMMA); |
2781 | if (token != SEMI) { | |
2782 | parse_warn (cfile, "expecting semicolon."); | |
2783 | skip_to_semi (cfile); | |
2784 | return 0; | |
2785 | } | |
2786 | break; | |
2787 | ||
d424157d SR |
2788 | case PRIMARY6: |
2789 | if (zone->primary6) { | |
2790 | parse_warn(cfile, "more than one primary6."); | |
2791 | skip_to_semi(cfile); | |
2792 | return (0); | |
2793 | } | |
2794 | if (!option_cache_allocate (&zone->primary6, MDL)) | |
2795 | log_fatal("can't allocate primary6 option cache."); | |
2796 | oc = zone->primary6; | |
2797 | goto consemup6; | |
2798 | ||
2799 | case SECONDARY6: | |
2800 | if (zone->secondary6) { | |
2801 | parse_warn(cfile, "more than one secondary6."); | |
2802 | skip_to_semi(cfile); | |
2803 | return (0); | |
2804 | } | |
2805 | if (!option_cache_allocate (&zone->secondary6, MDL)) | |
2806 | log_fatal("can't allocate secondary6 " | |
2807 | "option cache."); | |
2808 | oc = zone->secondary6; | |
2809 | consemup6: | |
2810 | token = next_token(&val, NULL, cfile); | |
2811 | do { | |
2812 | struct expression *expr = NULL; | |
2813 | if (parse_ip6_addr_expr(&expr, cfile) == 0) { | |
2814 | parse_warn(cfile, "expecting IPv6 addr."); | |
2815 | skip_to_semi(cfile); | |
2816 | return (0); | |
2817 | } | |
2818 | if (oc->expression) { | |
2819 | struct expression *old = NULL; | |
2820 | expression_reference(&old, oc->expression, | |
2821 | MDL); | |
2822 | expression_dereference(&oc->expression, | |
2823 | MDL); | |
2824 | if (!make_concat(&oc->expression, | |
2825 | old, expr)) | |
2826 | log_fatal("no memory for concat."); | |
2827 | expression_dereference(&expr, MDL); | |
2828 | expression_dereference(&old, MDL); | |
2829 | } else { | |
2830 | expression_reference(&oc->expression, | |
2831 | expr, MDL); | |
2832 | expression_dereference(&expr, MDL); | |
2833 | } | |
2834 | token = next_token(&val, NULL, cfile); | |
2835 | } while (token == COMMA); | |
2836 | if (token != SEMI) { | |
2837 | parse_warn(cfile, "expecting semicolon."); | |
2838 | skip_to_semi(cfile); | |
2839 | return (0); | |
2840 | } | |
2841 | break; | |
2842 | ||
028b1f6a | 2843 | case KEY: |
b3519f23 TL |
2844 | token = next_token (&val, (unsigned *)0, cfile); |
2845 | token = peek_token (&val, (unsigned *)0, cfile); | |
630786fc | 2846 | if (token == STRING) { |
b3519f23 | 2847 | token = next_token (&val, (unsigned *)0, cfile); |
630786fc TL |
2848 | key_name = (char *)0; |
2849 | } else { | |
2850 | key_name = parse_host_name (cfile); | |
b49c02cc TL |
2851 | if (!key_name) { |
2852 | parse_warn (cfile, "expecting key name."); | |
2853 | skip_to_semi (cfile); | |
630786fc | 2854 | return 0; |
b49c02cc | 2855 | } |
630786fc | 2856 | val = key_name; |
fa392aea | 2857 | } |
49146f3c DN |
2858 | if (omapi_auth_key_lookup_name (&zone -> key, val) != |
2859 | ISC_R_SUCCESS) | |
fa392aea | 2860 | parse_warn (cfile, "unknown key %s", val); |
630786fc TL |
2861 | if (key_name) |
2862 | dfree (key_name, MDL); | |
fa392aea TL |
2863 | if (!parse_semi (cfile)) |
2864 | return 0; | |
2865 | break; | |
2866 | ||
2867 | default: | |
2868 | done = 1; | |
2869 | break; | |
2870 | } | |
2871 | } while (!done); | |
2872 | ||
b3519f23 | 2873 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2874 | if (token != RBRACE) { |
2875 | parse_warn (cfile, "expecting right brace."); | |
2876 | return 0; | |
2877 | } | |
fa392aea TL |
2878 | return 1; |
2879 | } | |
2880 | ||
028b1f6a TL |
2881 | /* key-statements :== key-statement | |
2882 | key-statement key-statements | |
2883 | key-statement :== | |
2884 | ALGORITHM host-name SEMI | | |
2885 | secret-definition SEMI | |
2886 | secret-definition :== SECRET base64val | | |
2887 | SECRET STRING */ | |
2888 | ||
2889 | int parse_key (struct parse *cfile) | |
2890 | { | |
2891 | int token; | |
2892 | const char *val; | |
2893 | int done = 0; | |
49146f3c DN |
2894 | struct auth_key *key; |
2895 | struct data_string ds; | |
028b1f6a | 2896 | isc_result_t status; |
2f98b84e | 2897 | char *s; |
028b1f6a | 2898 | |
49146f3c DN |
2899 | key = (struct auth_key *)0; |
2900 | if (omapi_auth_key_new (&key, MDL) != ISC_R_SUCCESS) | |
630786fc TL |
2901 | log_fatal ("no memory for key"); |
2902 | ||
b3519f23 | 2903 | token = peek_token (&val, (unsigned *)0, cfile); |
630786fc | 2904 | if (token == STRING) { |
b3519f23 | 2905 | token = next_token (&val, (unsigned *)0, cfile); |
630786fc TL |
2906 | key -> name = dmalloc (strlen (val) + 1, MDL); |
2907 | if (!key -> name) | |
2908 | log_fatal ("no memory for key name."); | |
2909 | strcpy (key -> name, val); | |
2910 | ||
2911 | } else { | |
2912 | key -> name = parse_host_name (cfile); | |
2913 | if (!key -> name) { | |
b49c02cc | 2914 | parse_warn (cfile, "expecting key name."); |
630786fc TL |
2915 | skip_to_semi (cfile); |
2916 | goto bad; | |
2917 | } | |
2918 | } | |
028b1f6a | 2919 | |
b3519f23 | 2920 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2921 | if (token != LBRACE) { |
2922 | parse_warn (cfile, "expecting left brace"); | |
630786fc | 2923 | goto bad; |
028b1f6a TL |
2924 | } |
2925 | ||
2926 | do { | |
b3519f23 | 2927 | token = next_token (&val, (unsigned *)0, cfile); |
028b1f6a TL |
2928 | switch (token) { |
2929 | case ALGORITHM: | |
2930 | if (key -> algorithm) { | |
2931 | parse_warn (cfile, | |
2932 | "key %s: too many algorithms", | |
2933 | key -> name); | |
2934 | goto rbad; | |
2935 | } | |
2936 | key -> algorithm = parse_host_name (cfile); | |
2937 | if (!key -> algorithm) { | |
2938 | parse_warn (cfile, | |
2939 | "expecting key algorithm name."); | |
2940 | goto rbad; | |
2941 | } | |
2942 | if (!parse_semi (cfile)) | |
2943 | goto rbad; | |
2f98b84e TL |
2944 | /* If the algorithm name isn't an FQDN, tack on |
2945 | the .SIG-ALG.REG.NET. domain. */ | |
35155613 | 2946 | s = strrchr (key -> algorithm, '.'); |
2f98b84e | 2947 | if (!s) { |
35155613 TL |
2948 | static char add [] = ".SIG-ALG.REG.INT."; |
2949 | s = dmalloc (strlen (key -> algorithm) + | |
2950 | sizeof (add), MDL); | |
2951 | if (!s) { | |
2952 | log_error ("no memory for key %s.", | |
2953 | "algorithm"); | |
2954 | goto rbad; | |
2955 | } | |
2956 | strcpy (s, key -> algorithm); | |
2957 | strcat (s, add); | |
2958 | dfree (key -> algorithm, MDL); | |
2959 | key -> algorithm = s; | |
2960 | } else if (s [1]) { | |
2961 | /* If there is no trailing '.', hack one in. */ | |
2962 | s = dmalloc (strlen (key -> algorithm) + 2, MDL); | |
2963 | if (!s) { | |
2964 | log_error ("no memory for key %s.", | |
2965 | key -> algorithm); | |
2966 | goto rbad; | |
2967 | } | |
2968 | strcpy (s, key -> algorithm); | |
2969 | strcat (s, "."); | |
2970 | dfree (key -> algorithm, MDL); | |
2971 | key -> algorithm = s; | |
2f98b84e | 2972 | } |
028b1f6a TL |
2973 | break; |
2974 | ||
2975 | case SECRET: | |
49146f3c | 2976 | if (key -> key) { |
028b1f6a TL |
2977 | parse_warn (cfile, "key %s: too many secrets", |
2978 | key -> name); | |
2979 | goto rbad; | |
2980 | } | |
49146f3c DN |
2981 | |
2982 | memset (&ds, 0, sizeof(ds)); | |
2983 | if (!parse_base64 (&ds, cfile)) | |
2984 | goto rbad; | |
2985 | status = omapi_data_string_new (&key -> key, ds.len, | |
2986 | MDL); | |
2987 | if (status != ISC_R_SUCCESS) | |
028b1f6a | 2988 | goto rbad; |
49146f3c DN |
2989 | memcpy (key -> key -> value, |
2990 | ds.buffer -> data, ds.len); | |
2991 | data_string_forget (&ds, MDL); | |
2992 | ||
028b1f6a TL |
2993 | if (!parse_semi (cfile)) |
2994 | goto rbad; | |
2995 | break; | |
2996 | ||
2997 | default: | |
2998 | done = 1; | |
2999 | break; | |
3000 | } | |
3001 | } while (!done); | |
3002 | if (token != RBRACE) { | |
3003 | parse_warn (cfile, "expecting right brace."); | |
3004 | goto rbad; | |
3005 | } | |
13b0934e TL |
3006 | /* Allow the BIND 8 syntax, which has a semicolon after each |
3007 | closing brace. */ | |
b3519f23 | 3008 | token = peek_token (&val, (unsigned *)0, cfile); |
13b0934e | 3009 | if (token == SEMI) |
b3519f23 | 3010 | token = next_token (&val, (unsigned *)0, cfile); |
13b0934e TL |
3011 | |
3012 | /* Remember the key. */ | |
49146f3c | 3013 | status = omapi_auth_key_enter (key); |
028b1f6a TL |
3014 | if (status != ISC_R_SUCCESS) { |
3015 | parse_warn (cfile, "tsig key %s: %s", | |
3016 | key -> name, isc_result_totext (status)); | |
3017 | goto bad; | |
3018 | } | |
d758ad8c | 3019 | omapi_auth_key_dereference (&key, MDL); |
028b1f6a TL |
3020 | return 1; |
3021 | ||
3022 | rbad: | |
3023 | skip_to_rbrace (cfile, 1); | |
3024 | bad: | |
49146f3c | 3025 | omapi_auth_key_dereference (&key, MDL); |
028b1f6a TL |
3026 | return 0; |
3027 | } | |
630786fc | 3028 | |
79a65726 | 3029 | /* |
f579f39f TL |
3030 | * on-statement :== event-types LBRACE executable-statements RBRACE |
3031 | * event-types :== event-type OR event-types | | |
3032 | * event-type | |
79a65726 TL |
3033 | * event-type :== EXPIRY | COMMIT | RELEASE |
3034 | */ | |
3035 | ||
3036 | int parse_on_statement (result, cfile, lose) | |
3037 | struct executable_statement **result; | |
4615d498 | 3038 | struct parse *cfile; |
79a65726 TL |
3039 | int *lose; |
3040 | { | |
3041 | enum dhcp_token token; | |
b1b7b521 | 3042 | const char *val; |
79a65726 | 3043 | |
4bd8800e | 3044 | if (!executable_statement_allocate (result, MDL)) |
8ae2d595 | 3045 | log_fatal ("no memory for new statement."); |
33500c7d | 3046 | (*result) -> op = on_statement; |
79a65726 | 3047 | |
f579f39f | 3048 | do { |
b3519f23 | 3049 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3050 | switch (token) { |
3051 | case EXPIRY: | |
3052 | (*result) -> data.on.evtypes |= ON_EXPIRY; | |
3053 | break; | |
79a65726 | 3054 | |
f579f39f | 3055 | case COMMIT: |
fdac15d9 | 3056 | (*result) -> data.on.evtypes |= ON_COMMIT; |
f579f39f TL |
3057 | break; |
3058 | ||
3059 | case RELEASE: | |
fdac15d9 | 3060 | (*result) -> data.on.evtypes |= ON_RELEASE; |
f579f39f TL |
3061 | break; |
3062 | ||
b49c02cc TL |
3063 | case TRANSMISSION: |
3064 | (*result) -> data.on.evtypes |= ON_TRANSMISSION; | |
3065 | break; | |
3066 | ||
f579f39f TL |
3067 | default: |
3068 | parse_warn (cfile, "expecting a lease event type"); | |
3069 | skip_to_semi (cfile); | |
3070 | *lose = 1; | |
4bd8800e | 3071 | executable_statement_dereference (result, MDL); |
fdac15d9 | 3072 | return 0; |
f579f39f | 3073 | } |
b3519f23 | 3074 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f | 3075 | } while (token == OR); |
79a65726 | 3076 | |
f579f39f TL |
3077 | /* Semicolon means no statements. */ |
3078 | if (token == SEMI) | |
3079 | return 1; | |
3080 | ||
79a65726 | 3081 | if (token != LBRACE) { |
4615d498 | 3082 | parse_warn (cfile, "left brace expected."); |
79a65726 TL |
3083 | skip_to_semi (cfile); |
3084 | *lose = 1; | |
4bd8800e | 3085 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3086 | return 0; |
3087 | } | |
3088 | if (!parse_executable_statements (&(*result) -> data.on.statements, | |
f579f39f | 3089 | cfile, lose, context_any)) { |
79a65726 TL |
3090 | if (*lose) { |
3091 | /* Try to even things up. */ | |
3092 | do { | |
b3519f23 TL |
3093 | token = next_token (&val, |
3094 | (unsigned *)0, cfile); | |
0b69dcc8 | 3095 | } while (token != END_OF_FILE && token != RBRACE); |
4bd8800e | 3096 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3097 | return 0; |
3098 | } | |
3099 | } | |
b3519f23 | 3100 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 | 3101 | if (token != RBRACE) { |
4615d498 | 3102 | parse_warn (cfile, "right brace expected."); |
79a65726 TL |
3103 | skip_to_semi (cfile); |
3104 | *lose = 1; | |
4bd8800e | 3105 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3106 | return 0; |
3107 | } | |
3108 | return 1; | |
be6be08d TL |
3109 | } |
3110 | ||
f579f39f TL |
3111 | /* |
3112 | * switch-statement :== LPAREN expr RPAREN LBRACE executable-statements RBRACE | |
3113 | * | |
3114 | */ | |
3115 | ||
3116 | int parse_switch_statement (result, cfile, lose) | |
3117 | struct executable_statement **result; | |
3118 | struct parse *cfile; | |
3119 | int *lose; | |
3120 | { | |
3121 | enum dhcp_token token; | |
3122 | const char *val; | |
3123 | ||
4bd8800e | 3124 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
3125 | log_fatal ("no memory for new statement."); |
3126 | (*result) -> op = switch_statement; | |
3127 | ||
b3519f23 | 3128 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3129 | if (token != LPAREN) { |
3130 | parse_warn (cfile, "expecting left brace."); | |
3131 | pfui: | |
3132 | *lose = 1; | |
3133 | skip_to_semi (cfile); | |
3134 | gnorf: | |
4bd8800e | 3135 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3136 | return 0; |
3137 | } | |
3138 | ||
3139 | if (!parse_expression (&(*result) -> data.s_switch.expr, | |
3140 | cfile, lose, context_data_or_numeric, | |
3141 | (struct expression **)0, expr_none)) { | |
3142 | if (!*lose) { | |
3143 | parse_warn (cfile, | |
3144 | "expecting data or numeric expression."); | |
3145 | goto pfui; | |
3146 | } | |
3147 | goto gnorf; | |
3148 | } | |
3149 | ||
b3519f23 | 3150 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3151 | if (token != RPAREN) { |
3152 | parse_warn (cfile, "right paren expected."); | |
3153 | goto pfui; | |
3154 | } | |
3155 | ||
b3519f23 | 3156 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3157 | if (token != LBRACE) { |
3158 | parse_warn (cfile, "left brace expected."); | |
3159 | goto pfui; | |
3160 | } | |
3161 | if (!(parse_executable_statements | |
3162 | (&(*result) -> data.s_switch.statements, cfile, lose, | |
3163 | (is_data_expression ((*result) -> data.s_switch.expr) | |
3164 | ? context_data : context_numeric)))) { | |
3165 | if (*lose) { | |
3166 | skip_to_rbrace (cfile, 1); | |
4bd8800e | 3167 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3168 | return 0; |
3169 | } | |
3170 | } | |
b3519f23 | 3171 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3172 | if (token != RBRACE) { |
3173 | parse_warn (cfile, "right brace expected."); | |
3174 | goto pfui; | |
3175 | } | |
3176 | return 1; | |
3177 | } | |
3178 | ||
3179 | /* | |
3180 | * case-statement :== CASE expr COLON | |
3181 | * | |
3182 | */ | |
3183 | ||
3184 | int parse_case_statement (result, cfile, lose, case_context) | |
3185 | struct executable_statement **result; | |
3186 | struct parse *cfile; | |
3187 | int *lose; | |
3188 | enum expression_context case_context; | |
3189 | { | |
3190 | enum dhcp_token token; | |
3191 | const char *val; | |
3192 | ||
4bd8800e | 3193 | if (!executable_statement_allocate (result, MDL)) |
f579f39f TL |
3194 | log_fatal ("no memory for new statement."); |
3195 | (*result) -> op = case_statement; | |
3196 | ||
3197 | if (!parse_expression (&(*result) -> data.c_case, | |
3198 | cfile, lose, case_context, | |
3199 | (struct expression **)0, expr_none)) | |
3200 | { | |
3201 | if (!*lose) { | |
3202 | parse_warn (cfile, "expecting %s expression.", | |
3203 | (case_context == context_data | |
3204 | ? "data" : "numeric")); | |
3205 | } | |
3206 | pfui: | |
3207 | *lose = 1; | |
3208 | skip_to_semi (cfile); | |
4bd8800e | 3209 | executable_statement_dereference (result, MDL); |
f579f39f TL |
3210 | return 0; |
3211 | } | |
3212 | ||
b3519f23 | 3213 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
3214 | if (token != COLON) { |
3215 | parse_warn (cfile, "colon expected."); | |
3216 | goto pfui; | |
3217 | } | |
3218 | return 1; | |
3219 | } | |
3220 | ||
be6be08d TL |
3221 | /* |
3222 | * if-statement :== boolean-expression LBRACE executable-statements RBRACE | |
3223 | * else-statement | |
3224 | * | |
3225 | * else-statement :== <null> | | |
3226 | * ELSE LBRACE executable-statements RBRACE | | |
3227 | * ELSE IF if-statement | | |
3228 | * ELSIF if-statement | |
3229 | */ | |
3230 | ||
79a65726 TL |
3231 | int parse_if_statement (result, cfile, lose) |
3232 | struct executable_statement **result; | |
4615d498 | 3233 | struct parse *cfile; |
be6be08d TL |
3234 | int *lose; |
3235 | { | |
02a015fb | 3236 | enum dhcp_token token; |
b1b7b521 | 3237 | const char *val; |
fdac15d9 | 3238 | int parenp; |
be6be08d | 3239 | |
4bd8800e | 3240 | if (!executable_statement_allocate (result, MDL)) |
79a65726 TL |
3241 | log_fatal ("no memory for if statement."); |
3242 | ||
3243 | (*result) -> op = if_statement; | |
3244 | ||
b3519f23 | 3245 | token = peek_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3246 | if (token == LPAREN) { |
3247 | parenp = 1; | |
b3519f23 | 3248 | next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3249 | } else |
3250 | parenp = 0; | |
3251 | ||
3252 | ||
79a65726 TL |
3253 | if (!parse_boolean_expression (&(*result) -> data.ie.expr, |
3254 | cfile, lose)) { | |
be6be08d | 3255 | if (!*lose) |
4615d498 | 3256 | parse_warn (cfile, "boolean expression expected."); |
4bd8800e | 3257 | executable_statement_dereference (result, MDL); |
166e63eb | 3258 | *lose = 1; |
79a65726 | 3259 | return 0; |
be6be08d | 3260 | } |
02a015fb | 3261 | #if defined (DEBUG_EXPRESSION_PARSE) |
7b01f134 | 3262 | print_expression ("if condition", (*result) -> data.ie.expr); |
02a015fb | 3263 | #endif |
fdac15d9 | 3264 | if (parenp) { |
b3519f23 | 3265 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
3266 | if (token != RPAREN) { |
3267 | parse_warn (cfile, "expecting right paren."); | |
3268 | *lose = 1; | |
4bd8800e | 3269 | executable_statement_dereference (result, MDL); |
fdac15d9 TL |
3270 | return 0; |
3271 | } | |
3272 | } | |
b3519f23 | 3273 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 3274 | if (token != LBRACE) { |
4615d498 | 3275 | parse_warn (cfile, "left brace expected."); |
be6be08d TL |
3276 | skip_to_semi (cfile); |
3277 | *lose = 1; | |
4bd8800e | 3278 | executable_statement_dereference (result, MDL); |
79a65726 | 3279 | return 0; |
be6be08d | 3280 | } |
d758ad8c | 3281 | if (!parse_executable_statements (&(*result) -> data.ie.tc, |
f579f39f | 3282 | cfile, lose, context_any)) { |
79a65726 TL |
3283 | if (*lose) { |
3284 | /* Try to even things up. */ | |
3285 | do { | |
b3519f23 TL |
3286 | token = next_token (&val, |
3287 | (unsigned *)0, cfile); | |
0b69dcc8 | 3288 | } while (token != END_OF_FILE && token != RBRACE); |
4bd8800e | 3289 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3290 | return 0; |
3291 | } | |
efc79acb | 3292 | } |
b3519f23 | 3293 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 3294 | if (token != RBRACE) { |
4615d498 | 3295 | parse_warn (cfile, "right brace expected."); |
be6be08d TL |
3296 | skip_to_semi (cfile); |
3297 | *lose = 1; | |
4bd8800e | 3298 | executable_statement_dereference (result, MDL); |
79a65726 | 3299 | return 0; |
be6be08d | 3300 | } |
b3519f23 | 3301 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d | 3302 | if (token == ELSE) { |
b3519f23 TL |
3303 | token = next_token (&val, (unsigned *)0, cfile); |
3304 | token = peek_token (&val, (unsigned *)0, cfile); | |
be6be08d | 3305 | if (token == IF) { |
b3519f23 | 3306 | token = next_token (&val, (unsigned *)0, cfile); |
d758ad8c | 3307 | if (!parse_if_statement (&(*result) -> data.ie.fc, |
79a65726 | 3308 | cfile, lose)) { |
166e63eb TL |
3309 | if (!*lose) |
3310 | parse_warn (cfile, | |
4bd8800e TL |
3311 | "expecting if statement"); |
3312 | executable_statement_dereference (result, MDL); | |
166e63eb TL |
3313 | *lose = 1; |
3314 | return 0; | |
79a65726 | 3315 | } |
be6be08d | 3316 | } else if (token != LBRACE) { |
4615d498 | 3317 | parse_warn (cfile, "left brace or if expected."); |
be6be08d TL |
3318 | skip_to_semi (cfile); |
3319 | *lose = 1; | |
4bd8800e | 3320 | executable_statement_dereference (result, MDL); |
79a65726 | 3321 | return 0; |
be6be08d | 3322 | } else { |
b3519f23 | 3323 | token = next_token (&val, (unsigned *)0, cfile); |
33500c7d | 3324 | if (!(parse_executable_statements |
d758ad8c | 3325 | (&(*result) -> data.ie.fc, |
f579f39f | 3326 | cfile, lose, context_any))) { |
4bd8800e | 3327 | executable_statement_dereference (result, MDL); |
79a65726 TL |
3328 | return 0; |
3329 | } | |
b3519f23 | 3330 | token = next_token (&val, (unsigned *)0, cfile); |
25541f2f | 3331 | if (token != RBRACE) { |
4615d498 | 3332 | parse_warn (cfile, "right brace expected."); |
25541f2f TL |
3333 | skip_to_semi (cfile); |
3334 | *lose = 1; | |
4bd8800e | 3335 | executable_statement_dereference (result, MDL); |
79a65726 | 3336 | return 0; |
25541f2f | 3337 | } |
be6be08d TL |
3338 | } |
3339 | } else if (token == ELSIF) { | |
b3519f23 | 3340 | token = next_token (&val, (unsigned *)0, cfile); |
d758ad8c | 3341 | if (!parse_if_statement (&(*result) -> data.ie.fc, |
79a65726 | 3342 | cfile, lose)) { |
166e63eb TL |
3343 | if (!*lose) |
3344 | parse_warn (cfile, | |
3345 | "expecting conditional."); | |
4bd8800e | 3346 | executable_statement_dereference (result, MDL); |
166e63eb TL |
3347 | *lose = 1; |
3348 | return 0; | |
79a65726 | 3349 | } |
be6be08d | 3350 | } else |
d758ad8c | 3351 | (*result) -> data.ie.fc = (struct executable_statement *)0; |
be6be08d | 3352 | |
79a65726 | 3353 | return 1; |
be6be08d TL |
3354 | } |
3355 | ||
3356 | /* | |
3357 | * boolean_expression :== CHECK STRING | | |
3358 | * NOT boolean-expression | | |
3359 | * data-expression EQUAL data-expression | | |
2b965a44 | 3360 | * data-expression BANG EQUAL data-expression | |
dd328225 | 3361 | * data-expression REGEX_MATCH data-expression | |
be6be08d TL |
3362 | * boolean-expression AND boolean-expression | |
3363 | * boolean-expression OR boolean-expression | |
02a015fb | 3364 | * EXISTS OPTION-NAME |
be6be08d TL |
3365 | */ |
3366 | ||
02a015fb TL |
3367 | int parse_boolean_expression (expr, cfile, lose) |
3368 | struct expression **expr; | |
4615d498 | 3369 | struct parse *cfile; |
02a015fb TL |
3370 | int *lose; |
3371 | { | |
3372 | /* Parse an expression... */ | |
3373 | if (!parse_expression (expr, cfile, lose, context_boolean, | |
3374 | (struct expression **)0, expr_none)) | |
3375 | return 0; | |
3376 | ||
08514fb8 TL |
3377 | if (!is_boolean_expression (*expr) && |
3378 | (*expr) -> op != expr_variable_reference && | |
3379 | (*expr) -> op != expr_funcall) { | |
4615d498 | 3380 | parse_warn (cfile, "Expecting a boolean expression."); |
02a015fb | 3381 | *lose = 1; |
4bd8800e | 3382 | expression_dereference (expr, MDL); |
02a015fb TL |
3383 | return 0; |
3384 | } | |
3385 | return 1; | |
3386 | } | |
3387 | ||
d15aa964 TM |
3388 | /* boolean :== ON SEMI | OFF SEMI | TRUE SEMI | FALSE SEMI */ |
3389 | ||
3390 | int parse_boolean (cfile) | |
3391 | struct parse *cfile; | |
3392 | { | |
3393 | enum dhcp_token token; | |
3394 | const char *val; | |
3395 | int rv; | |
3396 | ||
3397 | token = next_token (&val, (unsigned *)0, cfile); | |
3398 | if (!strcasecmp (val, "true") | |
3399 | || !strcasecmp (val, "on")) | |
3400 | rv = 1; | |
3401 | else if (!strcasecmp (val, "false") | |
3402 | || !strcasecmp (val, "off")) | |
3403 | rv = 0; | |
3404 | else { | |
3405 | parse_warn (cfile, | |
3406 | "boolean value (true/false/on/off) expected"); | |
3407 | skip_to_semi (cfile); | |
3408 | return 0; | |
3409 | } | |
3410 | parse_semi (cfile); | |
3411 | return rv; | |
3412 | } | |
3413 | ||
3414 | ||
02a015fb TL |
3415 | /* |
3416 | * data_expression :== SUBSTRING LPAREN data-expression COMMA | |
3417 | * numeric-expression COMMA | |
3418 | * numeric-expression RPAREN | | |
a82abfc7 | 3419 | * CONCAT LPAREN data-expression COMMA |
2727c1cf | 3420 | * data-expression RPAREN |
02a015fb | 3421 | * SUFFIX LPAREN data_expression COMMA |
a82abfc7 | 3422 | * numeric-expression RPAREN | |
2727c1cf DH |
3423 | * LCASE LPAREN data_expression RPAREN | |
3424 | * UCASE LPAREN data_expression RPAREN | | |
02a015fb TL |
3425 | * OPTION option_name | |
3426 | * HARDWARE | | |
3427 | * PACKET LPAREN numeric-expression COMMA | |
3428 | * numeric-expression RPAREN | | |
3429 | * STRING | | |
c57db45c | 3430 | * colon_separated_hex_list |
02a015fb TL |
3431 | */ |
3432 | ||
3433 | int parse_data_expression (expr, cfile, lose) | |
3434 | struct expression **expr; | |
4615d498 | 3435 | struct parse *cfile; |
02a015fb TL |
3436 | int *lose; |
3437 | { | |
3438 | /* Parse an expression... */ | |
3439 | if (!parse_expression (expr, cfile, lose, context_data, | |
3440 | (struct expression **)0, expr_none)) | |
3441 | return 0; | |
3442 | ||
08514fb8 TL |
3443 | if (!is_data_expression (*expr) && |
3444 | (*expr) -> op != expr_variable_reference && | |
3445 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3446 | expression_dereference (expr, MDL); |
4615d498 | 3447 | parse_warn (cfile, "Expecting a data expression."); |
02a015fb TL |
3448 | *lose = 1; |
3449 | return 0; | |
3450 | } | |
3451 | return 1; | |
3452 | } | |
3453 | ||
3454 | /* | |
3455 | * numeric-expression :== EXTRACT_INT LPAREN data-expression | |
3456 | * COMMA number RPAREN | | |
3457 | * NUMBER | |
3458 | */ | |
3459 | ||
3460 | int parse_numeric_expression (expr, cfile, lose) | |
3461 | struct expression **expr; | |
4615d498 | 3462 | struct parse *cfile; |
02a015fb TL |
3463 | int *lose; |
3464 | { | |
3465 | /* Parse an expression... */ | |
3466 | if (!parse_expression (expr, cfile, lose, context_numeric, | |
3467 | (struct expression **)0, expr_none)) | |
3468 | return 0; | |
3469 | ||
08514fb8 TL |
3470 | if (!is_numeric_expression (*expr) && |
3471 | (*expr) -> op != expr_variable_reference && | |
3472 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3473 | expression_dereference (expr, MDL); |
4615d498 | 3474 | parse_warn (cfile, "Expecting a numeric expression."); |
02a015fb TL |
3475 | *lose = 1; |
3476 | return 0; | |
3477 | } | |
3478 | return 1; | |
3479 | } | |
98bf1607 | 3480 | #if defined (NSUPDATE_OLD) |
9fb2fb28 TL |
3481 | /* |
3482 | * dns-expression :== | |
3483 | * UPDATE LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3484 | * data-expression COMMA numeric-expression RPAREN | |
3485 | * DELETE LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3486 | * data-expression RPAREN | |
3487 | * EXISTS LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3488 | * data-expression RPAREN | |
3489 | * NOT EXISTS LPAREN ns-class COMMA ns-type COMMA data-expression COMMA | |
3490 | * data-expression RPAREN | |
3491 | * ns-class :== IN | CHAOS | HS | NUMBER | |
3492 | * ns-type :== A | PTR | MX | TXT | NUMBER | |
3493 | */ | |
3494 | ||
3495 | int parse_dns_expression (expr, cfile, lose) | |
3496 | struct expression **expr; | |
3497 | struct parse *cfile; | |
3498 | int *lose; | |
3499 | { | |
3500 | /* Parse an expression... */ | |
3501 | if (!parse_expression (expr, cfile, lose, context_dns, | |
3502 | (struct expression **)0, expr_none)) | |
3503 | return 0; | |
3504 | ||
08514fb8 TL |
3505 | if (!is_dns_expression (*expr) && |
3506 | (*expr) -> op != expr_variable_reference && | |
3507 | (*expr) -> op != expr_funcall) { | |
98311e4b | 3508 | expression_dereference (expr, MDL); |
9fb2fb28 TL |
3509 | parse_warn (cfile, "Expecting a dns update subexpression."); |
3510 | *lose = 1; | |
3511 | return 0; | |
3512 | } | |
3513 | return 1; | |
3514 | } | |
98bf1607 | 3515 | #endif /* NSUPDATE_OLD */ |
02a015fb | 3516 | /* Parse a subexpression that does not contain a binary operator. */ |
be6be08d | 3517 | |
02a015fb TL |
3518 | int parse_non_binary (expr, cfile, lose, context) |
3519 | struct expression **expr; | |
4615d498 | 3520 | struct parse *cfile; |
be6be08d | 3521 | int *lose; |
02a015fb | 3522 | enum expression_context context; |
be6be08d | 3523 | { |
02a015fb | 3524 | enum dhcp_token token; |
b1b7b521 | 3525 | const char *val; |
be6be08d | 3526 | struct collection *col; |
08514fb8 | 3527 | struct expression *nexp, **ep; |
b1b7b521 | 3528 | int known; |
98bf1607 SR |
3529 | char *cptr; |
3530 | #if defined (NSUPDATE_OLD) | |
9fb2fb28 | 3531 | enum expr_op opcode; |
f579f39f | 3532 | const char *s; |
08514fb8 | 3533 | unsigned long u; |
98bf1607 | 3534 | #endif |
28868515 | 3535 | isc_result_t status; |
b3519f23 | 3536 | unsigned len; |
be6be08d | 3537 | |
b3519f23 | 3538 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3539 | |
3540 | /* Check for unary operators... */ | |
3541 | switch (token) { | |
3542 | case CHECK: | |
b3519f23 TL |
3543 | token = next_token (&val, (unsigned *)0, cfile); |
3544 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 3545 | if (token != STRING) { |
4615d498 | 3546 | parse_warn (cfile, "string expected."); |
be6be08d TL |
3547 | skip_to_semi (cfile); |
3548 | *lose = 1; | |
02a015fb | 3549 | return 0; |
be6be08d TL |
3550 | } |
3551 | for (col = collections; col; col = col -> next) | |
3552 | if (!strcmp (col -> name, val)) | |
3553 | break; | |
3554 | if (!col) { | |
4615d498 | 3555 | parse_warn (cfile, "unknown collection."); |
be6be08d | 3556 | *lose = 1; |
02a015fb | 3557 | return 0; |
be6be08d | 3558 | } |
4bd8800e | 3559 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3560 | log_fatal ("can't allocate expression"); |
02a015fb TL |
3561 | (*expr) -> op = expr_check; |
3562 | (*expr) -> data.check = col; | |
3563 | break; | |
be6be08d | 3564 | |
5e6fb153 | 3565 | case TOKEN_NOT: |
b3519f23 | 3566 | token = next_token (&val, (unsigned *)0, cfile); |
98bf1607 | 3567 | #if defined(NSUPDATE_OLD) |
9fb2fb28 | 3568 | if (context == context_dns) { |
b3519f23 | 3569 | token = peek_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
3570 | goto not_exists; |
3571 | } | |
98bf1607 | 3572 | #endif |
4bd8800e | 3573 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3574 | log_fatal ("can't allocate expression"); |
02a015fb TL |
3575 | (*expr) -> op = expr_not; |
3576 | if (!parse_non_binary (&(*expr) -> data.not, | |
9a7f6fcd | 3577 | cfile, lose, context_boolean)) { |
be6be08d | 3578 | if (!*lose) { |
4615d498 | 3579 | parse_warn (cfile, "expression expected"); |
be6be08d TL |
3580 | skip_to_semi (cfile); |
3581 | } | |
3582 | *lose = 1; | |
4bd8800e | 3583 | expression_dereference (expr, MDL); |
02a015fb | 3584 | return 0; |
be6be08d | 3585 | } |
9a7f6fcd TL |
3586 | if (!is_boolean_expression ((*expr) -> data.not)) { |
3587 | *lose = 1; | |
3588 | parse_warn (cfile, "boolean expression expected"); | |
3589 | skip_to_semi (cfile); | |
3590 | expression_dereference (expr, MDL); | |
3591 | return 0; | |
3592 | } | |
be6be08d | 3593 | break; |
be6be08d | 3594 | |
fcd9651f | 3595 | case LPAREN: |
b3519f23 | 3596 | token = next_token (&val, (unsigned *)0, cfile); |
fcd9651f TL |
3597 | if (!parse_expression (expr, cfile, lose, context, |
3598 | (struct expression **)0, expr_none)) { | |
3599 | if (!*lose) { | |
3600 | parse_warn (cfile, "expression expected"); | |
3601 | skip_to_semi (cfile); | |
3602 | } | |
3603 | *lose = 1; | |
3604 | return 0; | |
3605 | } | |
b3519f23 | 3606 | token = next_token (&val, (unsigned *)0, cfile); |
fcd9651f TL |
3607 | if (token != RPAREN) { |
3608 | *lose = 1; | |
3609 | parse_warn (cfile, "right paren expected"); | |
3610 | skip_to_semi (cfile); | |
3611 | return 0; | |
3612 | } | |
3613 | break; | |
3614 | ||
02a015fb | 3615 | case EXISTS: |
98bf1607 | 3616 | #if defined(NSUPDATE_OLD) |
9fb2fb28 TL |
3617 | if (context == context_dns) |
3618 | goto ns_exists; | |
98bf1607 | 3619 | #endif |
b3519f23 | 3620 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3621 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3622 | log_fatal ("can't allocate expression"); |
02a015fb | 3623 | (*expr) -> op = expr_exists; |
b1b7b521 | 3624 | known = 0; |
f7fdb216 DH |
3625 | /* Pass reference directly to expression structure. */ |
3626 | status = parse_option_name(cfile, 0, &known, | |
3627 | &(*expr)->data.option); | |
3628 | if (status != ISC_R_SUCCESS || | |
3629 | (*expr)->data.option == NULL) { | |
02a015fb | 3630 | *lose = 1; |
4bd8800e | 3631 | expression_dereference (expr, MDL); |
02a015fb | 3632 | return 0; |
be6be08d | 3633 | } |
02a015fb | 3634 | break; |
be6be08d | 3635 | |
1c5d5731 | 3636 | case STATIC: |
b3519f23 | 3637 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3638 | if (!expression_allocate (expr, MDL)) |
1c5d5731 TL |
3639 | log_fatal ("can't allocate expression"); |
3640 | (*expr) -> op = expr_static; | |
3641 | break; | |
3642 | ||
70330633 | 3643 | case KNOWN: |
b3519f23 | 3644 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3645 | if (!expression_allocate (expr, MDL)) |
70330633 TL |
3646 | log_fatal ("can't allocate expression"); |
3647 | (*expr) -> op = expr_known; | |
3648 | break; | |
3649 | ||
be6be08d | 3650 | case SUBSTRING: |
b3519f23 | 3651 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3652 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3653 | log_fatal ("can't allocate expression"); |
02a015fb | 3654 | (*expr) -> op = expr_substring; |
be6be08d | 3655 | |
b3519f23 | 3656 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3657 | if (token != LPAREN) { |
3658 | nolparen: | |
4bd8800e | 3659 | expression_dereference (expr, MDL); |
4615d498 | 3660 | parse_warn (cfile, "left parenthesis expected."); |
be6be08d | 3661 | *lose = 1; |
02a015fb | 3662 | return 0; |
be6be08d TL |
3663 | } |
3664 | ||
02a015fb TL |
3665 | if (!parse_data_expression (&(*expr) -> data.substring.expr, |
3666 | cfile, lose)) { | |
be6be08d | 3667 | nodata: |
4bd8800e | 3668 | expression_dereference (expr, MDL); |
962dc4ab TL |
3669 | if (!*lose) { |
3670 | parse_warn (cfile, | |
3671 | "expecting data expression."); | |
3672 | skip_to_semi (cfile); | |
3673 | *lose = 1; | |
3674 | } | |
02a015fb | 3675 | return 0; |
be6be08d TL |
3676 | } |
3677 | ||
b3519f23 | 3678 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3679 | if (token != COMMA) { |
3680 | nocomma: | |
4bd8800e | 3681 | expression_dereference (expr, MDL); |
4615d498 | 3682 | parse_warn (cfile, "comma expected."); |
be6be08d | 3683 | *lose = 1; |
02a015fb TL |
3684 | |
3685 | return 0; | |
be6be08d TL |
3686 | } |
3687 | ||
02a015fb TL |
3688 | if (!parse_numeric_expression |
3689 | (&(*expr) -> data.substring.offset,cfile, lose)) { | |
be6be08d TL |
3690 | nonum: |
3691 | if (!*lose) { | |
4615d498 TL |
3692 | parse_warn (cfile, |
3693 | "expecting numeric expression."); | |
be6be08d TL |
3694 | skip_to_semi (cfile); |
3695 | *lose = 1; | |
3696 | } | |
4bd8800e | 3697 | expression_dereference (expr, MDL); |
02a015fb | 3698 | return 0; |
be6be08d TL |
3699 | } |
3700 | ||
b3519f23 | 3701 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3702 | if (token != COMMA) |
3703 | goto nocomma; | |
3704 | ||
02a015fb TL |
3705 | if (!parse_numeric_expression |
3706 | (&(*expr) -> data.substring.len, cfile, lose)) | |
be6be08d TL |
3707 | goto nonum; |
3708 | ||
b3519f23 | 3709 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3710 | if (token != RPAREN) { |
3711 | norparen: | |
4615d498 | 3712 | parse_warn (cfile, "right parenthesis expected."); |
be6be08d | 3713 | *lose = 1; |
4bd8800e | 3714 | expression_dereference (expr, MDL); |
02a015fb | 3715 | return 0; |
be6be08d | 3716 | } |
02a015fb | 3717 | break; |
be6be08d TL |
3718 | |
3719 | case SUFFIX: | |
b3519f23 | 3720 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3721 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 3722 | log_fatal ("can't allocate expression"); |
02a015fb | 3723 | (*expr) -> op = expr_suffix; |
be6be08d | 3724 | |
b3519f23 | 3725 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3726 | if (token != LPAREN) |
3727 | goto nolparen; | |
3728 | ||
02a015fb TL |
3729 | if (!parse_data_expression (&(*expr) -> data.suffix.expr, |
3730 | cfile, lose)) | |
be6be08d TL |
3731 | goto nodata; |
3732 | ||
b3519f23 | 3733 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3734 | if (token != COMMA) |
3735 | goto nocomma; | |
3736 | ||
b0f452b3 TL |
3737 | if (!parse_numeric_expression (&(*expr) -> data.suffix.len, |
3738 | cfile, lose)) | |
be6be08d TL |
3739 | goto nonum; |
3740 | ||
b3519f23 | 3741 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
3742 | if (token != RPAREN) |
3743 | goto norparen; | |
02a015fb | 3744 | break; |
be6be08d | 3745 | |
2727c1cf DH |
3746 | case LCASE: |
3747 | token = next_token(&val, (unsigned *)0, cfile); | |
3748 | if (!expression_allocate(expr, MDL)) | |
3749 | log_fatal ("can't allocate expression"); | |
3750 | (*expr)->op = expr_lcase; | |
3751 | ||
3752 | token = next_token(&val, (unsigned *)0, cfile); | |
3753 | if (token != LPAREN) | |
3754 | goto nolparen; | |
3755 | ||
3756 | if (!parse_data_expression(&(*expr)->data.lcase, cfile, lose)) | |
3757 | goto nodata; | |
3758 | ||
3759 | token = next_token(&val, (unsigned *)0, cfile); | |
3760 | if (token != RPAREN) | |
3761 | goto norparen; | |
3762 | break; | |
3763 | ||
3764 | case UCASE: | |
3765 | token = next_token(&val, (unsigned *)0, cfile); | |
3766 | if (!expression_allocate(expr, MDL)) | |
3767 | log_fatal ("can't allocate expression"); | |
3768 | (*expr)->op = expr_ucase; | |
3769 | ||
3770 | token = next_token (&val, (unsigned *)0, cfile); | |
3771 | if (token != LPAREN) | |
3772 | goto nolparen; | |
3773 | ||
3774 | if (!parse_data_expression(&(*expr)->data.ucase, | |
3775 | cfile, lose)) | |
3776 | goto nodata; | |
3777 | ||
3778 | token = next_token(&val, (unsigned *)0, cfile); | |
3779 | if (token != RPAREN) | |
3780 | goto norparen; | |
3781 | break; | |
3782 | ||
a82abfc7 | 3783 | case CONCAT: |
b3519f23 | 3784 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3785 | if (!expression_allocate (expr, MDL)) |
a82abfc7 TL |
3786 | log_fatal ("can't allocate expression"); |
3787 | (*expr) -> op = expr_concat; | |
3788 | ||
b3519f23 | 3789 | token = next_token (&val, (unsigned *)0, cfile); |
a82abfc7 TL |
3790 | if (token != LPAREN) |
3791 | goto nolparen; | |
3792 | ||
3793 | if (!parse_data_expression (&(*expr) -> data.concat [0], | |
3794 | cfile, lose)) | |
3795 | goto nodata; | |
3796 | ||
b3519f23 | 3797 | token = next_token (&val, (unsigned *)0, cfile); |
a82abfc7 TL |
3798 | if (token != COMMA) |
3799 | goto nocomma; | |
3800 | ||
720c8262 | 3801 | concat_another: |
a82abfc7 TL |
3802 | if (!parse_data_expression (&(*expr) -> data.concat [1], |
3803 | cfile, lose)) | |
3804 | goto nodata; | |
3805 | ||
b3519f23 | 3806 | token = next_token (&val, (unsigned *)0, cfile); |
720c8262 TL |
3807 | |
3808 | if (token == COMMA) { | |
3809 | nexp = (struct expression *)0; | |
4bd8800e | 3810 | if (!expression_allocate (&nexp, MDL)) |
720c8262 TL |
3811 | log_fatal ("can't allocate at CONCAT2"); |
3812 | nexp -> op = expr_concat; | |
4bd8800e TL |
3813 | expression_reference (&nexp -> data.concat [0], |
3814 | *expr, MDL); | |
3815 | expression_dereference (expr, MDL); | |
3816 | expression_reference (expr, nexp, MDL); | |
d758ad8c | 3817 | expression_dereference (&nexp, MDL); |
720c8262 TL |
3818 | goto concat_another; |
3819 | } | |
3820 | ||
a82abfc7 TL |
3821 | if (token != RPAREN) |
3822 | goto norparen; | |
3823 | break; | |
3824 | ||
da38df14 | 3825 | case BINARY_TO_ASCII: |
b3519f23 | 3826 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3827 | if (!expression_allocate (expr, MDL)) |
da38df14 | 3828 | log_fatal ("can't allocate expression"); |
eb42f00e | 3829 | (*expr) -> op = expr_binary_to_ascii; |
da38df14 | 3830 | |
b3519f23 | 3831 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3832 | if (token != LPAREN) |
3833 | goto nolparen; | |
3834 | ||
3835 | if (!parse_numeric_expression (&(*expr) -> data.b2a.base, | |
3836 | cfile, lose)) | |
3837 | goto nodata; | |
3838 | ||
b3519f23 | 3839 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3840 | if (token != COMMA) |
3841 | goto nocomma; | |
3842 | ||
3843 | if (!parse_numeric_expression (&(*expr) -> data.b2a.width, | |
3844 | cfile, lose)) | |
3845 | goto nodata; | |
3846 | ||
b3519f23 | 3847 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3848 | if (token != COMMA) |
3849 | goto nocomma; | |
3850 | ||
c57db45c | 3851 | if (!parse_data_expression (&(*expr) -> data.b2a.separator, |
da38df14 TL |
3852 | cfile, lose)) |
3853 | goto nodata; | |
3854 | ||
b3519f23 | 3855 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3856 | if (token != COMMA) |
3857 | goto nocomma; | |
3858 | ||
3859 | if (!parse_data_expression (&(*expr) -> data.b2a.buffer, | |
3860 | cfile, lose)) | |
3861 | goto nodata; | |
3862 | ||
b3519f23 | 3863 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3864 | if (token != RPAREN) |
3865 | goto norparen; | |
3866 | break; | |
3867 | ||
3868 | case REVERSE: | |
b3519f23 | 3869 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3870 | if (!expression_allocate (expr, MDL)) |
da38df14 | 3871 | log_fatal ("can't allocate expression"); |
eb42f00e | 3872 | (*expr) -> op = expr_reverse; |
da38df14 | 3873 | |
b3519f23 | 3874 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3875 | if (token != LPAREN) |
3876 | goto nolparen; | |
3877 | ||
3878 | if (!(parse_numeric_expression | |
3879 | (&(*expr) -> data.reverse.width, cfile, lose))) | |
3880 | goto nodata; | |
3881 | ||
b3519f23 | 3882 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3883 | if (token != COMMA) |
3884 | goto nocomma; | |
3885 | ||
3886 | if (!(parse_data_expression | |
3887 | (&(*expr) -> data.reverse.buffer, cfile, lose))) | |
3888 | goto nodata; | |
3889 | ||
b3519f23 | 3890 | token = next_token (&val, (unsigned *)0, cfile); |
da38df14 TL |
3891 | if (token != RPAREN) |
3892 | goto norparen; | |
3893 | break; | |
3894 | ||
fdac15d9 | 3895 | case PICK: |
79a65726 TL |
3896 | /* pick (a, b, c) actually produces an internal representation |
3897 | that looks like pick (a, pick (b, pick (c, nil))). */ | |
b3519f23 | 3898 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 3899 | if (!(expression_allocate (expr, MDL))) |
79a65726 | 3900 | log_fatal ("can't allocate expression"); |
79a65726 | 3901 | |
b3519f23 | 3902 | token = next_token (&val, (unsigned *)0, cfile); |
79a65726 TL |
3903 | if (token != LPAREN) |
3904 | goto nolparen; | |
3905 | ||
d758ad8c TL |
3906 | nexp = (struct expression *)0; |
3907 | expression_reference (&nexp, *expr, MDL); | |
79a65726 | 3908 | do { |
d758ad8c TL |
3909 | nexp -> op = expr_pick_first_value; |
3910 | if (!(parse_data_expression | |
3911 | (&nexp -> data.pick_first_value.car, | |
3912 | cfile, lose))) | |
3913 | goto nodata; | |
79a65726 | 3914 | |
d758ad8c TL |
3915 | token = next_token (&val, (unsigned *)0, cfile); |
3916 | if (token == COMMA) { | |
3917 | struct expression *foo = (struct expression *)0; | |
3918 | if (!expression_allocate (&foo, MDL)) | |
3919 | log_fatal ("can't allocate expr"); | |
3920 | expression_reference | |
3921 | (&nexp -> data.pick_first_value.cdr, foo, MDL); | |
3922 | expression_dereference (&nexp, MDL); | |
3923 | expression_reference (&nexp, foo, MDL); | |
3924 | expression_dereference (&foo, MDL); | |
3925 | } | |
79a65726 | 3926 | } while (token == COMMA); |
d758ad8c | 3927 | expression_dereference (&nexp, MDL); |
79a65726 TL |
3928 | |
3929 | if (token != RPAREN) | |
3930 | goto norparen; | |
3931 | break; | |
3932 | ||
98bf1607 | 3933 | #if defined(NSUPDATE_OLD) |
9fb2fb28 TL |
3934 | /* dns-update and dns-delete are present for historical |
3935 | purposes, but are deprecated in favor of ns-update | |
3936 | in combination with update, delete, exists and not | |
3937 | exists. */ | |
069e9f4c | 3938 | case DNS_UPDATE: |
9fb2fb28 | 3939 | case DNS_DELETE: |
069e9f4c | 3940 | #if !defined (NSUPDATE) |
4615d498 TL |
3941 | parse_warn (cfile, |
3942 | "Please rebuild dhcpd with --with-nsupdate."); | |
069e9f4c | 3943 | #endif |
b3519f23 | 3944 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 | 3945 | if (token == DNS_UPDATE) |
f579f39f | 3946 | opcode = expr_ns_add; |
9fb2fb28 TL |
3947 | else |
3948 | opcode = expr_ns_delete; | |
3949 | ||
b3519f23 | 3950 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
3951 | if (token != LPAREN) |
3952 | goto nolparen; | |
3953 | ||
b3519f23 | 3954 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
3955 | if (token != STRING) { |
3956 | parse_warn (cfile, | |
3957 | "parse_expression: expecting string."); | |
3958 | badnsupdate: | |
069e9f4c TL |
3959 | skip_to_semi (cfile); |
3960 | *lose = 1; | |
3961 | return 0; | |
3962 | } | |
9fb2fb28 TL |
3963 | |
3964 | if (!strcasecmp (val, "a")) | |
08514fb8 | 3965 | u = T_A; |
98bd7ca0 DH |
3966 | else if (!strcasecmp (val, "aaaa")) |
3967 | u = T_AAAA; | |
9fb2fb28 | 3968 | else if (!strcasecmp (val, "ptr")) |
08514fb8 | 3969 | u = T_PTR; |
9fb2fb28 | 3970 | else if (!strcasecmp (val, "mx")) |
08514fb8 | 3971 | u = T_MX; |
9fb2fb28 | 3972 | else if (!strcasecmp (val, "cname")) |
08514fb8 | 3973 | u = T_CNAME; |
9fb2fb28 | 3974 | else if (!strcasecmp (val, "TXT")) |
08514fb8 | 3975 | u = T_TXT; |
9fb2fb28 TL |
3976 | else { |
3977 | parse_warn (cfile, "unexpected rrtype: %s", val); | |
3978 | goto badnsupdate; | |
3979 | } | |
fdac15d9 | 3980 | |
08514fb8 TL |
3981 | s = (opcode == expr_ns_add |
3982 | ? "old-dns-update" | |
3983 | : "old-dns-delete"); | |
3984 | cptr = dmalloc (strlen (s) + 1, MDL); | |
3985 | if (!cptr) | |
3986 | log_fatal ("can't allocate name for %s", s); | |
3987 | strcpy (cptr, s); | |
4bd8800e | 3988 | if (!expression_allocate (expr, MDL)) |
fdac15d9 | 3989 | log_fatal ("can't allocate expression"); |
fdac15d9 | 3990 | (*expr) -> op = expr_funcall; |
08514fb8 | 3991 | (*expr) -> data.funcall.name = cptr; |
fdac15d9 | 3992 | |
08514fb8 TL |
3993 | /* Fake up a function call. */ |
3994 | ep = &(*expr) -> data.funcall.arglist; | |
3995 | if (!expression_allocate (ep, MDL)) | |
3996 | log_fatal ("can't allocate expression"); | |
3997 | (*ep) -> op = expr_arg; | |
3998 | if (!make_const_int (&(*ep) -> data.arg.val, u)) | |
fdac15d9 | 3999 | log_fatal ("can't allocate rrtype value."); |
069e9f4c | 4000 | |
b3519f23 | 4001 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
4002 | if (token != COMMA) |
4003 | goto nocomma; | |
08514fb8 TL |
4004 | ep = &((*ep) -> data.arg.next); |
4005 | if (!expression_allocate (ep, MDL)) | |
4006 | log_fatal ("can't allocate expression"); | |
4007 | (*ep) -> op = expr_arg; | |
4008 | if (!(parse_data_expression (&(*ep) -> data.arg.val, | |
fdac15d9 | 4009 | cfile, lose))) |
069e9f4c TL |
4010 | goto nodata; |
4011 | ||
b3519f23 | 4012 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
4013 | if (token != COMMA) |
4014 | goto nocomma; | |
4015 | ||
08514fb8 TL |
4016 | ep = &((*ep) -> data.arg.next); |
4017 | if (!expression_allocate (ep, MDL)) | |
4018 | log_fatal ("can't allocate expression"); | |
4019 | (*ep) -> op = expr_arg; | |
4020 | if (!(parse_data_expression (&(*ep) -> data.arg.val, | |
fdac15d9 | 4021 | cfile, lose))) |
069e9f4c TL |
4022 | goto nodata; |
4023 | ||
f579f39f | 4024 | if (opcode == expr_ns_add) { |
b3519f23 | 4025 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4026 | if (token != COMMA) |
4027 | goto nocomma; | |
4028 | ||
08514fb8 TL |
4029 | ep = &((*ep) -> data.arg.next); |
4030 | if (!expression_allocate (ep, MDL)) | |
4031 | log_fatal ("can't allocate expression"); | |
4032 | (*ep) -> op = expr_arg; | |
4033 | if (!(parse_numeric_expression (&(*ep) -> data.arg.val, | |
4034 | cfile, lose))) { | |
9fb2fb28 | 4035 | parse_warn (cfile, |
fdac15d9 | 4036 | "expecting numeric expression."); |
9fb2fb28 TL |
4037 | goto badnsupdate; |
4038 | } | |
069e9f4c | 4039 | } |
08514fb8 | 4040 | |
b3519f23 | 4041 | token = next_token (&val, (unsigned *)0, cfile); |
069e9f4c TL |
4042 | if (token != RPAREN) |
4043 | goto norparen; | |
4044 | break; | |
4045 | ||
9fb2fb28 | 4046 | case NS_UPDATE: |
88886e12 TL |
4047 | #if !defined (NSUPDATE) |
4048 | parse_warn (cfile, | |
4049 | "Please rebuild dhcpd with --with-nsupdate."); | |
4050 | #endif | |
b3519f23 | 4051 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4052 | if (!expression_allocate (expr, MDL)) |
88886e12 | 4053 | log_fatal ("can't allocate expression"); |
88886e12 | 4054 | |
b3519f23 | 4055 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4056 | if (token != LPAREN) |
4057 | goto nolparen; | |
4058 | ||
9fb2fb28 TL |
4059 | nexp = *expr; |
4060 | do { | |
4061 | nexp -> op = expr_dns_transaction; | |
4062 | if (!(parse_dns_expression | |
4063 | (&nexp -> data.dns_transaction.car, | |
4064 | cfile, lose))) | |
4065 | { | |
f579f39f TL |
4066 | if (!*lose) |
4067 | parse_warn | |
4068 | (cfile, | |
4069 | "expecting dns expression."); | |
4bd8800e | 4070 | expression_dereference (expr, MDL); |
9fb2fb28 TL |
4071 | *lose = 1; |
4072 | return 0; | |
4073 | } | |
4074 | ||
b3519f23 | 4075 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4076 | |
4077 | if (token == COMMA) { | |
4078 | if (!(expression_allocate | |
4079 | (&nexp -> data.dns_transaction.cdr, | |
4bd8800e | 4080 | MDL))) |
9fb2fb28 TL |
4081 | log_fatal |
4082 | ("can't allocate expression"); | |
4083 | nexp = nexp -> data.dns_transaction.cdr; | |
4084 | } | |
4085 | } while (token == COMMA); | |
4086 | ||
4087 | if (token != RPAREN) | |
4088 | goto norparen; | |
4089 | break; | |
4090 | ||
4091 | /* NOT EXISTS is special cased above... */ | |
4092 | not_exists: | |
b3519f23 | 4093 | token = peek_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
4094 | if (token != EXISTS) { |
4095 | parse_warn (cfile, "expecting DNS prerequisite."); | |
4096 | *lose = 1; | |
4097 | return 0; | |
4098 | } | |
9fb2fb28 TL |
4099 | opcode = expr_ns_not_exists; |
4100 | goto nsupdatecode; | |
f579f39f TL |
4101 | case TOKEN_ADD: |
4102 | opcode = expr_ns_add; | |
9fb2fb28 TL |
4103 | goto nsupdatecode; |
4104 | case TOKEN_DELETE: | |
4105 | opcode = expr_ns_delete; | |
4106 | goto nsupdatecode; | |
4107 | ns_exists: | |
4108 | opcode = expr_ns_exists; | |
4109 | nsupdatecode: | |
b3519f23 | 4110 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4111 | |
4112 | #if !defined (NSUPDATE) | |
4113 | parse_warn (cfile, | |
4114 | "Please rebuild dhcpd with --with-nsupdate."); | |
4115 | #endif | |
4bd8800e | 4116 | if (!expression_allocate (expr, MDL)) |
9fb2fb28 TL |
4117 | log_fatal ("can't allocate expression"); |
4118 | (*expr) -> op = opcode; | |
4119 | ||
b3519f23 | 4120 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4121 | if (token != LPAREN) |
4122 | goto nolparen; | |
4123 | ||
b3519f23 | 4124 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4125 | if (!is_identifier (token) && token != NUMBER) { |
4126 | parse_warn (cfile, "expecting identifier or number."); | |
4127 | badnsop: | |
4bd8800e | 4128 | expression_dereference (expr, MDL); |
88886e12 TL |
4129 | skip_to_semi (cfile); |
4130 | *lose = 1; | |
4131 | return 0; | |
4132 | } | |
9fb2fb28 TL |
4133 | |
4134 | if (token == NUMBER) | |
f579f39f | 4135 | (*expr) -> data.ns_add.rrclass = atoi (val); |
9fb2fb28 | 4136 | else if (!strcasecmp (val, "in")) |
f579f39f | 4137 | (*expr) -> data.ns_add.rrclass = C_IN; |
9fb2fb28 | 4138 | else if (!strcasecmp (val, "chaos")) |
f579f39f | 4139 | (*expr) -> data.ns_add.rrclass = C_CHAOS; |
9fb2fb28 | 4140 | else if (!strcasecmp (val, "hs")) |
f579f39f | 4141 | (*expr) -> data.ns_add.rrclass = C_HS; |
9fb2fb28 TL |
4142 | else { |
4143 | parse_warn (cfile, "unexpected rrclass: %s", val); | |
4144 | goto badnsop; | |
4145 | } | |
4146 | ||
b3519f23 | 4147 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4148 | if (token != COMMA) |
4149 | goto nocomma; | |
4150 | ||
b3519f23 | 4151 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4152 | if (!is_identifier (token) && token != NUMBER) { |
4153 | parse_warn (cfile, "expecting identifier or number."); | |
4154 | goto badnsop; | |
4155 | } | |
4156 | ||
4157 | if (token == NUMBER) | |
f579f39f | 4158 | (*expr) -> data.ns_add.rrtype = atoi (val); |
9fb2fb28 | 4159 | else if (!strcasecmp (val, "a")) |
f579f39f | 4160 | (*expr) -> data.ns_add.rrtype = T_A; |
98bd7ca0 DH |
4161 | else if (!strcasecmp (val, "aaaa")) |
4162 | (*expr) -> data.ns_add.rrtype = T_AAAA; | |
9fb2fb28 | 4163 | else if (!strcasecmp (val, "ptr")) |
f579f39f | 4164 | (*expr) -> data.ns_add.rrtype = T_PTR; |
9fb2fb28 | 4165 | else if (!strcasecmp (val, "mx")) |
f579f39f | 4166 | (*expr) -> data.ns_add.rrtype = T_MX; |
9fb2fb28 | 4167 | else if (!strcasecmp (val, "cname")) |
f579f39f | 4168 | (*expr) -> data.ns_add.rrtype = T_CNAME; |
9fb2fb28 | 4169 | else if (!strcasecmp (val, "TXT")) |
f579f39f | 4170 | (*expr) -> data.ns_add.rrtype = T_TXT; |
9fb2fb28 TL |
4171 | else { |
4172 | parse_warn (cfile, "unexpected rrtype: %s", val); | |
4173 | goto badnsop; | |
4174 | } | |
88886e12 | 4175 | |
b3519f23 | 4176 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4177 | if (token != COMMA) |
4178 | goto nocomma; | |
4179 | ||
4180 | if (!(parse_data_expression | |
f579f39f | 4181 | (&(*expr) -> data.ns_add.rrname, cfile, lose))) |
88886e12 TL |
4182 | goto nodata; |
4183 | ||
b3519f23 | 4184 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4185 | if (token != COMMA) |
4186 | goto nocomma; | |
4187 | ||
4188 | if (!(parse_data_expression | |
f579f39f | 4189 | (&(*expr) -> data.ns_add.rrdata, cfile, lose))) |
88886e12 TL |
4190 | goto nodata; |
4191 | ||
f579f39f | 4192 | if (opcode == expr_ns_add) { |
b3519f23 | 4193 | token = next_token (&val, (unsigned *)0, cfile); |
9fb2fb28 TL |
4194 | if (token != COMMA) |
4195 | goto nocomma; | |
4196 | ||
4197 | if (!(parse_numeric_expression | |
f579f39f TL |
4198 | (&(*expr) -> data.ns_add.ttl, cfile, |
4199 | lose))) { | |
962dc4ab | 4200 | if (!*lose) |
9fb2fb28 | 4201 | parse_warn (cfile, |
962dc4ab TL |
4202 | "expecting numeric expression."); |
4203 | goto badnsupdate; | |
9fb2fb28 TL |
4204 | } |
4205 | } | |
4206 | ||
b3519f23 | 4207 | token = next_token (&val, (unsigned *)0, cfile); |
88886e12 TL |
4208 | if (token != RPAREN) |
4209 | goto norparen; | |
4210 | break; | |
98bf1607 | 4211 | #endif /* NSUPDATE_OLD */ |
79a65726 TL |
4212 | case OPTION: |
4213 | case CONFIG_OPTION: | |
4bd8800e | 4214 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4215 | log_fatal ("can't allocate expression"); |
cd31814f TL |
4216 | (*expr) -> op = (token == OPTION |
4217 | ? expr_option | |
4218 | : expr_config_option); | |
b3519f23 | 4219 | token = next_token (&val, (unsigned *)0, cfile); |
b1b7b521 | 4220 | known = 0; |
f7fdb216 DH |
4221 | /* Pass reference directly to expression structure. */ |
4222 | status = parse_option_name(cfile, 0, &known, | |
4223 | &(*expr)->data.option); | |
4224 | if (status != ISC_R_SUCCESS || | |
4225 | (*expr)->data.option == NULL) { | |
be6be08d | 4226 | *lose = 1; |
4bd8800e | 4227 | expression_dereference (expr, MDL); |
02a015fb | 4228 | return 0; |
be6be08d | 4229 | } |
02a015fb | 4230 | break; |
be6be08d TL |
4231 | |
4232 | case HARDWARE: | |
b3519f23 | 4233 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4234 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4235 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4236 | (*expr) -> op = expr_hardware; |
4237 | break; | |
be6be08d | 4238 | |
da38df14 | 4239 | case LEASED_ADDRESS: |
b3519f23 | 4240 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4241 | if (!expression_allocate (expr, MDL)) |
da38df14 TL |
4242 | log_fatal ("can't allocate expression"); |
4243 | (*expr) -> op = expr_leased_address; | |
4244 | break; | |
4245 | ||
9a7f6fcd | 4246 | case CLIENT_STATE: |
b3519f23 | 4247 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
4248 | if (!expression_allocate (expr, MDL)) |
4249 | log_fatal ("can't allocate expression"); | |
4250 | (*expr) -> op = expr_client_state; | |
4251 | break; | |
4252 | ||
fdac15d9 | 4253 | case FILENAME: |
b3519f23 | 4254 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4255 | if (!expression_allocate (expr, MDL)) |
fdac15d9 TL |
4256 | log_fatal ("can't allocate expression"); |
4257 | (*expr) -> op = expr_filename; | |
4258 | break; | |
4259 | ||
4260 | case SERVER_NAME: | |
b3519f23 | 4261 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4262 | if (!expression_allocate (expr, MDL)) |
fdac15d9 TL |
4263 | log_fatal ("can't allocate expression"); |
4264 | (*expr) -> op = expr_sname; | |
4265 | break; | |
4266 | ||
069e9f4c | 4267 | case LEASE_TIME: |
b3519f23 | 4268 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4269 | if (!expression_allocate (expr, MDL)) |
069e9f4c TL |
4270 | log_fatal ("can't allocate expression"); |
4271 | (*expr) -> op = expr_lease_time; | |
4272 | break; | |
4273 | ||
f579f39f | 4274 | case TOKEN_NULL: |
b3519f23 | 4275 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4276 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4277 | log_fatal ("can't allocate expression"); |
4278 | (*expr) -> op = expr_null; | |
4279 | break; | |
4280 | ||
79a65726 | 4281 | case HOST_DECL_NAME: |
b3519f23 | 4282 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4283 | if (!expression_allocate (expr, MDL)) |
79a65726 TL |
4284 | log_fatal ("can't allocate expression"); |
4285 | (*expr) -> op = expr_host_decl_name; | |
4286 | break; | |
4287 | ||
98bf1607 | 4288 | #if defined(NSUPDATE_OLD) |
846d7d54 | 4289 | case UPDATED_DNS_RR: |
b3519f23 | 4290 | token = next_token (&val, (unsigned *)0, cfile); |
06a8567c | 4291 | |
b3519f23 | 4292 | token = next_token (&val, (unsigned *)0, cfile); |
846d7d54 TL |
4293 | if (token != LPAREN) |
4294 | goto nolparen; | |
f579f39f | 4295 | |
b3519f23 | 4296 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4297 | if (token != STRING) { |
4298 | parse_warn (cfile, "expecting string."); | |
4299 | bad_rrtype: | |
4300 | *lose = 1; | |
4301 | return 0; | |
4302 | } | |
4303 | if (!strcasecmp (val, "a")) | |
4304 | s = "ddns-fwd-name"; | |
4305 | else if (!strcasecmp (val, "ptr")) | |
4306 | s = "ddns-rev-name"; | |
4307 | else { | |
4308 | parse_warn (cfile, "invalid DNS rrtype: %s", val); | |
4309 | goto bad_rrtype; | |
4310 | } | |
846d7d54 | 4311 | |
b3519f23 | 4312 | token = next_token (&val, (unsigned *)0, cfile); |
846d7d54 TL |
4313 | if (token != RPAREN) |
4314 | goto norparen; | |
4315 | ||
4bd8800e | 4316 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4317 | log_fatal ("can't allocate expression"); |
4318 | (*expr) -> op = expr_variable_reference; | |
4319 | (*expr) -> data.variable = | |
fdac15d9 | 4320 | dmalloc (strlen (s) + 1, MDL); |
f579f39f TL |
4321 | if (!(*expr) -> data.variable) |
4322 | log_fatal ("can't allocate variable name."); | |
4323 | strcpy ((*expr) -> data.variable, s); | |
06a8567c | 4324 | break; |
98bf1607 | 4325 | #endif /* NSUPDATE_OLD */ |
be6be08d | 4326 | case PACKET: |
b3519f23 | 4327 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4328 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4329 | log_fatal ("can't allocate expression"); |
02a015fb | 4330 | (*expr) -> op = expr_packet; |
be6be08d | 4331 | |
b3519f23 | 4332 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4333 | if (token != LPAREN) |
4334 | goto nolparen; | |
4335 | ||
02a015fb TL |
4336 | if (!parse_numeric_expression (&(*expr) -> data.packet.offset, |
4337 | cfile, lose)) | |
be6be08d TL |
4338 | goto nonum; |
4339 | ||
b3519f23 | 4340 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4341 | if (token != COMMA) |
4342 | goto nocomma; | |
4343 | ||
02a015fb TL |
4344 | if (!parse_numeric_expression (&(*expr) -> data.packet.len, |
4345 | cfile, lose)) | |
be6be08d TL |
4346 | goto nonum; |
4347 | ||
b3519f23 | 4348 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d TL |
4349 | if (token != RPAREN) |
4350 | goto norparen; | |
02a015fb | 4351 | break; |
be6be08d TL |
4352 | |
4353 | case STRING: | |
b3519f23 | 4354 | token = next_token (&val, &len, cfile); |
b1b7b521 | 4355 | if (!make_const_data (expr, (const unsigned char *)val, |
d758ad8c | 4356 | len, 1, 1, MDL)) |
8ae2d595 | 4357 | log_fatal ("can't make constant string expression."); |
02a015fb | 4358 | break; |
be6be08d | 4359 | |
be6be08d | 4360 | case EXTRACT_INT: |
b3519f23 TL |
4361 | token = next_token (&val, (unsigned *)0, cfile); |
4362 | token = next_token (&val, (unsigned *)0, cfile); | |
be6be08d | 4363 | if (token != LPAREN) { |
4615d498 | 4364 | parse_warn (cfile, "left parenthesis expected."); |
be6be08d | 4365 | *lose = 1; |
02a015fb | 4366 | return 0; |
be6be08d TL |
4367 | } |
4368 | ||
4bd8800e | 4369 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 4370 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4371 | |
4372 | if (!parse_data_expression (&(*expr) -> data.extract_int, | |
4373 | cfile, lose)) { | |
962dc4ab TL |
4374 | if (!*lose) { |
4375 | parse_warn (cfile, | |
4376 | "expecting data expression."); | |
4377 | skip_to_semi (cfile); | |
4378 | *lose = 1; | |
4379 | } | |
4bd8800e | 4380 | expression_dereference (expr, MDL); |
02a015fb | 4381 | return 0; |
be6be08d TL |
4382 | } |
4383 | ||
b3519f23 | 4384 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4385 | if (token != COMMA) { |
4615d498 | 4386 | parse_warn (cfile, "comma expected."); |
be6be08d | 4387 | *lose = 1; |
4bd8800e | 4388 | expression_dereference (expr, MDL); |
02a015fb | 4389 | return 0; |
be6be08d TL |
4390 | } |
4391 | ||
b3519f23 | 4392 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4393 | if (token != NUMBER) { |
4615d498 | 4394 | parse_warn (cfile, "number expected."); |
be6be08d | 4395 | *lose = 1; |
4bd8800e | 4396 | expression_dereference (expr, MDL); |
02a015fb | 4397 | return 0; |
be6be08d | 4398 | } |
be6be08d TL |
4399 | switch (atoi (val)) { |
4400 | case 8: | |
02a015fb | 4401 | (*expr) -> op = expr_extract_int8; |
be6be08d TL |
4402 | break; |
4403 | ||
4404 | case 16: | |
02a015fb | 4405 | (*expr) -> op = expr_extract_int16; |
be6be08d TL |
4406 | break; |
4407 | ||
4408 | case 32: | |
02a015fb | 4409 | (*expr) -> op = expr_extract_int32; |
be6be08d TL |
4410 | break; |
4411 | ||
4412 | default: | |
4615d498 TL |
4413 | parse_warn (cfile, |
4414 | "unsupported integer size %d", atoi (val)); | |
be6be08d TL |
4415 | *lose = 1; |
4416 | skip_to_semi (cfile); | |
4bd8800e | 4417 | expression_dereference (expr, MDL); |
02a015fb | 4418 | return 0; |
be6be08d TL |
4419 | } |
4420 | ||
b3519f23 | 4421 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 4422 | if (token != RPAREN) { |
4615d498 | 4423 | parse_warn (cfile, "right parenthesis expected."); |
be6be08d | 4424 | *lose = 1; |
4bd8800e | 4425 | expression_dereference (expr, MDL); |
02a015fb | 4426 | return 0; |
be6be08d | 4427 | } |
02a015fb | 4428 | break; |
be6be08d | 4429 | |
20c4e94d | 4430 | case ENCODE_INT: |
b3519f23 TL |
4431 | token = next_token (&val, (unsigned *)0, cfile); |
4432 | token = next_token (&val, (unsigned *)0, cfile); | |
20c4e94d | 4433 | if (token != LPAREN) { |
4615d498 | 4434 | parse_warn (cfile, "left parenthesis expected."); |
20c4e94d TL |
4435 | *lose = 1; |
4436 | return 0; | |
4437 | } | |
4438 | ||
4bd8800e | 4439 | if (!expression_allocate (expr, MDL)) |
20c4e94d TL |
4440 | log_fatal ("can't allocate expression"); |
4441 | ||
4442 | if (!parse_numeric_expression (&(*expr) -> data.encode_int, | |
4443 | cfile, lose)) { | |
4615d498 | 4444 | parse_warn (cfile, "expecting numeric expression."); |
20c4e94d TL |
4445 | skip_to_semi (cfile); |
4446 | *lose = 1; | |
4bd8800e | 4447 | expression_dereference (expr, MDL); |
20c4e94d TL |
4448 | return 0; |
4449 | } | |
4450 | ||
b3519f23 | 4451 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4452 | if (token != COMMA) { |
4615d498 | 4453 | parse_warn (cfile, "comma expected."); |
20c4e94d | 4454 | *lose = 1; |
4bd8800e | 4455 | expression_dereference (expr, MDL); |
20c4e94d TL |
4456 | return 0; |
4457 | } | |
4458 | ||
b3519f23 | 4459 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4460 | if (token != NUMBER) { |
4615d498 | 4461 | parse_warn (cfile, "number expected."); |
20c4e94d | 4462 | *lose = 1; |
4bd8800e | 4463 | expression_dereference (expr, MDL); |
20c4e94d TL |
4464 | return 0; |
4465 | } | |
4466 | switch (atoi (val)) { | |
4467 | case 8: | |
4468 | (*expr) -> op = expr_encode_int8; | |
4469 | break; | |
4470 | ||
4471 | case 16: | |
4472 | (*expr) -> op = expr_encode_int16; | |
4473 | break; | |
4474 | ||
4475 | case 32: | |
4476 | (*expr) -> op = expr_encode_int32; | |
4477 | break; | |
4478 | ||
4479 | default: | |
4615d498 TL |
4480 | parse_warn (cfile, |
4481 | "unsupported integer size %d", atoi (val)); | |
20c4e94d TL |
4482 | *lose = 1; |
4483 | skip_to_semi (cfile); | |
4bd8800e | 4484 | expression_dereference (expr, MDL); |
20c4e94d TL |
4485 | return 0; |
4486 | } | |
4487 | ||
b3519f23 | 4488 | token = next_token (&val, (unsigned *)0, cfile); |
20c4e94d | 4489 | if (token != RPAREN) { |
4615d498 | 4490 | parse_warn (cfile, "right parenthesis expected."); |
20c4e94d | 4491 | *lose = 1; |
4bd8800e | 4492 | expression_dereference (expr, MDL); |
20c4e94d TL |
4493 | return 0; |
4494 | } | |
4495 | break; | |
4496 | ||
be6be08d | 4497 | case NUMBER: |
02a015fb TL |
4498 | /* If we're in a numeric context, this should just be a |
4499 | number, by itself. */ | |
f579f39f TL |
4500 | if (context == context_numeric || |
4501 | context == context_data_or_numeric) { | |
b3519f23 | 4502 | next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4503 | if (!expression_allocate (expr, MDL)) |
be19167d | 4504 | log_fatal ("can't allocate expression"); |
02a015fb TL |
4505 | (*expr) -> op = expr_const_int; |
4506 | (*expr) -> data.const_int = atoi (val); | |
4507 | break; | |
4508 | } | |
be6be08d | 4509 | |
02a015fb | 4510 | case NUMBER_OR_NAME: |
4bd8800e | 4511 | if (!expression_allocate (expr, MDL)) |
be19167d TL |
4512 | log_fatal ("can't allocate expression"); |
4513 | ||
02a015fb TL |
4514 | (*expr) -> op = expr_const_data; |
4515 | if (!parse_cshl (&(*expr) -> data.const_data, cfile)) { | |
4bd8800e | 4516 | expression_dereference (expr, MDL); |
02a015fb TL |
4517 | return 0; |
4518 | } | |
4519 | break; | |
4520 | ||
f579f39f TL |
4521 | case NS_FORMERR: |
4522 | known = FORMERR; | |
9a7f6fcd | 4523 | goto ns_const; |
f579f39f | 4524 | ns_const: |
b3519f23 | 4525 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4526 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4527 | log_fatal ("can't allocate expression"); |
4528 | (*expr) -> op = expr_const_int; | |
4529 | (*expr) -> data.const_int = known; | |
4530 | break; | |
4531 | ||
4532 | case NS_NOERROR: | |
1898dcf7 | 4533 | known = ISC_R_SUCCESS; |
f579f39f TL |
4534 | goto ns_const; |
4535 | ||
4536 | case NS_NOTAUTH: | |
98bf1607 | 4537 | known = DHCP_R_NOTAUTH; |
f579f39f TL |
4538 | goto ns_const; |
4539 | ||
4540 | case NS_NOTIMP: | |
1898dcf7 | 4541 | known = ISC_R_NOTIMPLEMENTED; |
f579f39f TL |
4542 | goto ns_const; |
4543 | ||
4544 | case NS_NOTZONE: | |
98bf1607 | 4545 | known = DHCP_R_NOTZONE; |
f579f39f TL |
4546 | goto ns_const; |
4547 | ||
4548 | case NS_NXDOMAIN: | |
98bf1607 | 4549 | known = DHCP_R_NXDOMAIN; |
f579f39f TL |
4550 | goto ns_const; |
4551 | ||
4552 | case NS_NXRRSET: | |
98bf1607 | 4553 | known = DHCP_R_NXRRSET; |
f579f39f TL |
4554 | goto ns_const; |
4555 | ||
4556 | case NS_REFUSED: | |
98bf1607 | 4557 | known = DHCP_R_REFUSED; |
f579f39f TL |
4558 | goto ns_const; |
4559 | ||
4560 | case NS_SERVFAIL: | |
98bf1607 | 4561 | known = DHCP_R_SERVFAIL; |
f579f39f TL |
4562 | goto ns_const; |
4563 | ||
4564 | case NS_YXDOMAIN: | |
98bf1607 | 4565 | known = DHCP_R_YXDOMAIN; |
f579f39f TL |
4566 | goto ns_const; |
4567 | ||
4568 | case NS_YXRRSET: | |
98bf1607 | 4569 | known = DHCP_R_YXRRSET; |
f579f39f TL |
4570 | goto ns_const; |
4571 | ||
8a34e9e6 TL |
4572 | case BOOTING: |
4573 | known = S_INIT; | |
4574 | goto ns_const; | |
4575 | ||
4576 | case REBOOT: | |
4577 | known = S_REBOOTING; | |
4578 | goto ns_const; | |
4579 | ||
4580 | case SELECT: | |
4581 | known = S_SELECTING; | |
4582 | goto ns_const; | |
4583 | ||
543ce4f8 TL |
4584 | case REQUEST: |
4585 | known = S_REQUESTING; | |
4586 | goto ns_const; | |
4587 | ||
8a34e9e6 TL |
4588 | case BOUND: |
4589 | known = S_BOUND; | |
4590 | goto ns_const; | |
4591 | ||
4592 | case RENEW: | |
4593 | known = S_RENEWING; | |
4594 | goto ns_const; | |
4595 | ||
4596 | case REBIND: | |
4597 | known = S_REBINDING; | |
4598 | goto ns_const; | |
4599 | ||
f579f39f | 4600 | case DEFINED: |
b3519f23 TL |
4601 | token = next_token (&val, (unsigned *)0, cfile); |
4602 | token = next_token (&val, (unsigned *)0, cfile); | |
f579f39f TL |
4603 | if (token != LPAREN) |
4604 | goto nolparen; | |
4605 | ||
b3519f23 | 4606 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4607 | if (token != NAME && token != NUMBER_OR_NAME) { |
4608 | parse_warn (cfile, "%s can't be a variable name", val); | |
4609 | skip_to_semi (cfile); | |
4610 | *lose = 1; | |
4611 | return 0; | |
4612 | } | |
4613 | ||
4bd8800e | 4614 | if (!expression_allocate (expr, MDL)) |
f579f39f TL |
4615 | log_fatal ("can't allocate expression"); |
4616 | (*expr) -> op = expr_variable_exists; | |
fdac15d9 | 4617 | (*expr) -> data.variable = dmalloc (strlen (val) + 1, MDL); |
f579f39f TL |
4618 | if (!(*expr)->data.variable) |
4619 | log_fatal ("can't allocate variable name"); | |
4620 | strcpy ((*expr) -> data.variable, val); | |
b3519f23 | 4621 | token = next_token (&val, (unsigned *)0, cfile); |
f579f39f TL |
4622 | if (token != RPAREN) |
4623 | goto norparen; | |
4624 | break; | |
4625 | ||
33ea4622 DH |
4626 | /* This parses 'gethostname()'. */ |
4627 | case GETHOSTNAME: | |
4628 | token = next_token(&val, NULL, cfile); | |
4629 | if (!expression_allocate(expr, MDL)) | |
4630 | log_fatal("can't allocate expression"); | |
4631 | (*expr)->op = expr_gethostname; | |
4632 | ||
4633 | token = next_token(NULL, NULL, cfile); | |
4634 | if (token != LPAREN) | |
4635 | goto nolparen; | |
4636 | ||
4637 | token = next_token(NULL, NULL, cfile); | |
4638 | if (token != RPAREN) | |
4639 | goto norparen; | |
023fbaa0 TM |
4640 | break; |
4641 | ||
4642 | case GETHOSTBYNAME: | |
4643 | token = next_token(&val, NULL, cfile); | |
4644 | ||
4645 | token = next_token(NULL, NULL, cfile); | |
4646 | if (token != LPAREN) | |
4647 | goto nolparen; | |
4648 | ||
4649 | /* The argument is a quoted string. */ | |
4650 | token = next_token(&val, NULL, cfile); | |
4651 | if (token != STRING) { | |
4652 | parse_warn(cfile, "Expecting quoted literal: " | |
4653 | "\"foo.example.com\""); | |
4654 | skip_to_semi(cfile); | |
4655 | *lose = 1; | |
4656 | return 0; | |
4657 | } | |
4658 | if (!make_host_lookup(expr, val)) | |
4659 | log_fatal("Error creating gethostbyname() internal " | |
4660 | "record. (%s:%d)", MDL); | |
4661 | ||
4662 | token = next_token(NULL, NULL, cfile); | |
4663 | if (token != RPAREN) | |
4664 | goto norparen; | |
33ea4622 DH |
4665 | break; |
4666 | ||
02a015fb | 4667 | /* Not a valid start to an expression... */ |
be6be08d | 4668 | default: |
f579f39f TL |
4669 | if (token != NAME && token != NUMBER_OR_NAME) |
4670 | return 0; | |
4671 | ||
b3519f23 | 4672 | token = next_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4673 | |
4674 | /* Save the name of the variable being referenced. */ | |
4675 | cptr = dmalloc (strlen (val) + 1, MDL); | |
4676 | if (!cptr) | |
4677 | log_fatal ("can't allocate variable name"); | |
4678 | strcpy (cptr, val); | |
4679 | ||
4680 | /* Simple variable reference, as far as we can tell. */ | |
b3519f23 | 4681 | token = peek_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4682 | if (token != LPAREN) { |
4683 | if (!expression_allocate (expr, MDL)) | |
4684 | log_fatal ("can't allocate expression"); | |
4685 | (*expr) -> op = expr_variable_reference; | |
4686 | (*expr) -> data.variable = cptr; | |
4687 | break; | |
4688 | } | |
4689 | ||
b3519f23 | 4690 | token = next_token (&val, (unsigned *)0, cfile); |
4bd8800e | 4691 | if (!expression_allocate (expr, MDL)) |
f579f39f | 4692 | log_fatal ("can't allocate expression"); |
08514fb8 TL |
4693 | (*expr) -> op = expr_funcall; |
4694 | (*expr) -> data.funcall.name = cptr; | |
4695 | ||
4696 | /* Now parse the argument list. */ | |
4697 | ep = &(*expr) -> data.funcall.arglist; | |
4698 | do { | |
4699 | if (!expression_allocate (ep, MDL)) | |
4700 | log_fatal ("can't allocate expression"); | |
4701 | (*ep) -> op = expr_arg; | |
4702 | if (!parse_expression (&(*ep) -> data.arg.val, | |
4703 | cfile, lose, context_any, | |
4704 | (struct expression **)0, | |
4705 | expr_none)) { | |
4706 | if (!*lose) { | |
4707 | parse_warn (cfile, | |
4708 | "expecting expression."); | |
4709 | *lose = 1; | |
4710 | } | |
4711 | skip_to_semi (cfile); | |
4712 | expression_dereference (expr, MDL); | |
4713 | return 0; | |
4714 | } | |
4715 | ep = &((*ep) -> data.arg.next); | |
b3519f23 | 4716 | token = next_token (&val, (unsigned *)0, cfile); |
08514fb8 TL |
4717 | } while (token == COMMA); |
4718 | if (token != RPAREN) { | |
4719 | parse_warn (cfile, "Right parenthesis expected."); | |
4720 | skip_to_semi (cfile); | |
4721 | *lose = 1; | |
4722 | expression_dereference (expr, MDL); | |
4723 | return 0; | |
4724 | } | |
f579f39f | 4725 | break; |
be6be08d | 4726 | } |
02a015fb | 4727 | return 1; |
be6be08d TL |
4728 | } |
4729 | ||
02a015fb TL |
4730 | /* Parse an expression. */ |
4731 | ||
4732 | int parse_expression (expr, cfile, lose, context, plhs, binop) | |
4733 | struct expression **expr; | |
4615d498 | 4734 | struct parse *cfile; |
02a015fb TL |
4735 | int *lose; |
4736 | enum expression_context context; | |
4737 | struct expression **plhs; | |
4738 | enum expr_op binop; | |
4739 | { | |
4740 | enum dhcp_token token; | |
b1b7b521 | 4741 | const char *val; |
02a015fb | 4742 | struct expression *rhs = (struct expression *)0, *tmp; |
962dc4ab | 4743 | struct expression *lhs = (struct expression *)0; |
02a015fb | 4744 | enum expr_op next_op; |
1898dcf7 TL |
4745 | enum expression_context |
4746 | lhs_context = context_any, | |
4747 | rhs_context = context_any; | |
02a015fb TL |
4748 | |
4749 | /* Consume the left hand side we were passed. */ | |
4750 | if (plhs) { | |
962dc4ab TL |
4751 | expression_reference (&lhs, *plhs, MDL); |
4752 | expression_dereference (plhs, MDL); | |
4753 | } | |
02a015fb TL |
4754 | |
4755 | new_rhs: | |
4756 | if (!parse_non_binary (&rhs, cfile, lose, context)) { | |
4757 | /* If we already have a left-hand side, then it's not | |
4758 | okay for there not to be a right-hand side here, so | |
4759 | we need to flag it as an error. */ | |
4760 | if (lhs) { | |
4761 | if (!*lose) { | |
4615d498 TL |
4762 | parse_warn (cfile, |
4763 | "expecting right-hand side."); | |
02a015fb TL |
4764 | *lose = 1; |
4765 | skip_to_semi (cfile); | |
4766 | } | |
4bd8800e | 4767 | expression_dereference (&lhs, MDL); |
02a015fb TL |
4768 | } |
4769 | return 0; | |
4770 | } | |
4771 | ||
4772 | /* At this point, rhs contains either an entire subexpression, | |
4773 | or at least a left-hand-side. If we do not see a binary token | |
4774 | as the next token, we're done with the expression. */ | |
4775 | ||
b3519f23 | 4776 | token = peek_token (&val, (unsigned *)0, cfile); |
02a015fb | 4777 | switch (token) { |
2b965a44 | 4778 | case BANG: |
b3519f23 TL |
4779 | token = next_token (&val, (unsigned *)0, cfile); |
4780 | token = peek_token (&val, (unsigned *)0, cfile); | |
2b965a44 TL |
4781 | if (token != EQUAL) { |
4782 | parse_warn (cfile, "! in boolean context without ="); | |
4783 | *lose = 1; | |
4784 | skip_to_semi (cfile); | |
4785 | if (lhs) | |
4bd8800e | 4786 | expression_dereference (&lhs, MDL); |
2b965a44 TL |
4787 | return 0; |
4788 | } | |
4789 | next_op = expr_not_equal; | |
1898dcf7 | 4790 | context = expression_context (rhs); |
2b965a44 TL |
4791 | break; |
4792 | ||
02a015fb TL |
4793 | case EQUAL: |
4794 | next_op = expr_equal; | |
1898dcf7 | 4795 | context = expression_context (rhs); |
02a015fb TL |
4796 | break; |
4797 | ||
dd328225 DH |
4798 | case TILDE: |
4799 | #ifdef HAVE_REGEX_H | |
4800 | token = next_token(&val, NULL, cfile); | |
4801 | token = peek_token(&val, NULL, cfile); | |
4802 | ||
4803 | if (token == TILDE) | |
4804 | next_op = expr_iregex_match; | |
4805 | else if (token == EQUAL) | |
4806 | next_op = expr_regex_match; | |
4807 | else { | |
4808 | parse_warn(cfile, "expecting ~= or ~~ operator"); | |
4809 | *lose = 1; | |
4810 | skip_to_semi(cfile); | |
4811 | if (lhs) | |
4812 | expression_dereference(&lhs, MDL); | |
4813 | return 0; | |
4814 | } | |
4815 | ||
4816 | context = expression_context(rhs); | |
4817 | #else | |
4818 | parse_warn(cfile, "No support for regex operator."); | |
4819 | *lose = 1; | |
4820 | skip_to_semi(cfile); | |
4821 | if (lhs != NULL) | |
4822 | expression_dereference(&lhs, MDL); | |
4823 | return 0; | |
4824 | #endif | |
4825 | break; | |
4826 | ||
02a015fb TL |
4827 | case AND: |
4828 | next_op = expr_and; | |
1898dcf7 | 4829 | context = expression_context (rhs); |
02a015fb TL |
4830 | break; |
4831 | ||
4832 | case OR: | |
4833 | next_op = expr_or; | |
1898dcf7 | 4834 | context = expression_context (rhs); |
02a015fb TL |
4835 | break; |
4836 | ||
31cb2a5f TL |
4837 | case PLUS: |
4838 | next_op = expr_add; | |
1898dcf7 | 4839 | context = expression_context (rhs); |
31cb2a5f TL |
4840 | break; |
4841 | ||
4842 | case MINUS: | |
4843 | next_op = expr_subtract; | |
1898dcf7 | 4844 | context = expression_context (rhs); |
31cb2a5f TL |
4845 | break; |
4846 | ||
4847 | case SLASH: | |
4848 | next_op = expr_divide; | |
1898dcf7 | 4849 | context = expression_context (rhs); |
31cb2a5f TL |
4850 | break; |
4851 | ||
4852 | case ASTERISK: | |
4853 | next_op = expr_multiply; | |
1898dcf7 | 4854 | context = expression_context (rhs); |
31cb2a5f TL |
4855 | break; |
4856 | ||
4857 | case PERCENT: | |
4858 | next_op = expr_remainder; | |
1898dcf7 | 4859 | context = expression_context (rhs); |
31cb2a5f TL |
4860 | break; |
4861 | ||
3c98e80b DN |
4862 | case AMPERSAND: |
4863 | next_op = expr_binary_and; | |
1898dcf7 | 4864 | context = expression_context (rhs); |
3c98e80b DN |
4865 | break; |
4866 | ||
4867 | case PIPE: | |
4868 | next_op = expr_binary_or; | |
1898dcf7 | 4869 | context = expression_context (rhs); |
3c98e80b DN |
4870 | break; |
4871 | ||
4872 | case CARET: | |
4873 | next_op = expr_binary_xor; | |
1898dcf7 | 4874 | context = expression_context (rhs); |
3c98e80b DN |
4875 | break; |
4876 | ||
02a015fb TL |
4877 | default: |
4878 | next_op = expr_none; | |
4879 | } | |
4880 | ||
4881 | /* If we have no lhs yet, we just parsed it. */ | |
4882 | if (!lhs) { | |
4883 | /* If there was no operator following what we just parsed, | |
4884 | then we're done - return it. */ | |
4885 | if (next_op == expr_none) { | |
4886 | *expr = rhs; | |
4887 | return 1; | |
4888 | } | |
4889 | lhs = rhs; | |
4890 | rhs = (struct expression *)0; | |
4891 | binop = next_op; | |
b3519f23 | 4892 | next_token (&val, (unsigned *)0, cfile); |
02a015fb TL |
4893 | goto new_rhs; |
4894 | } | |
4895 | ||
98311e4b DH |
4896 | /* If the next binary operator is of greater precedence than the |
4897 | * current operator, then rhs we have parsed so far is actually | |
4898 | * the lhs of the next operator. To get this value, we have to | |
4899 | * recurse. | |
4900 | */ | |
4901 | if (binop != expr_none && next_op != expr_none && | |
4902 | op_precedence (binop, next_op) < 0) { | |
4903 | ||
4904 | /* Eat the subexpression operator token, which we pass to | |
4905 | * parse_expression...we only peek()'d earlier. | |
4906 | */ | |
4907 | token = next_token (&val, (unsigned *)0, cfile); | |
4908 | ||
4909 | /* Continue parsing of the right hand side with that token. */ | |
4910 | tmp = rhs; | |
4911 | rhs = (struct expression *)0; | |
4912 | if (!parse_expression (&rhs, cfile, lose, op_context (next_op), | |
4913 | &tmp, next_op)) { | |
4914 | if (!*lose) { | |
4915 | parse_warn (cfile, | |
4916 | "expecting a subexpression"); | |
4917 | *lose = 1; | |
4918 | } | |
4919 | return 0; | |
4920 | } | |
4921 | next_op = expr_none; | |
4922 | } | |
4923 | ||
4924 | if (binop != expr_none) { | |
4925 | rhs_context = expression_context(rhs); | |
4926 | lhs_context = expression_context(lhs); | |
4927 | ||
4928 | if ((rhs_context != context_any) && (lhs_context != context_any) && | |
4929 | (rhs_context != lhs_context)) { | |
4930 | parse_warn (cfile, "illegal expression relating different types"); | |
4931 | skip_to_semi (cfile); | |
4932 | expression_dereference (&rhs, MDL); | |
4933 | expression_dereference (&lhs, MDL); | |
4934 | *lose = 1; | |
4935 | return 0; | |
4936 | } | |
4937 | ||
4938 | switch(binop) { | |
4939 | case expr_not_equal: | |
4940 | case expr_equal: | |
4941 | if ((rhs_context != context_data_or_numeric) && | |
4942 | (rhs_context != context_data) && | |
4943 | (rhs_context != context_numeric) && | |
4944 | (rhs_context != context_any)) { | |
4945 | parse_warn (cfile, "expecting data/numeric expression"); | |
4946 | skip_to_semi (cfile); | |
4947 | expression_dereference (&rhs, MDL); | |
4948 | *lose = 1; | |
4949 | return 0; | |
4950 | } | |
4951 | break; | |
4952 | ||
dd328225 DH |
4953 | case expr_regex_match: |
4954 | #ifdef HAVE_REGEX_H | |
4955 | if (expression_context(rhs) != context_data) { | |
4956 | parse_warn(cfile, "expecting data expression"); | |
4957 | skip_to_semi(cfile); | |
4958 | expression_dereference(&rhs, MDL); | |
4959 | *lose = 1; | |
4960 | return 0; | |
4961 | } | |
4962 | #else | |
4963 | /* It should not be possible to attempt to parse the right | |
4964 | * hand side of an operator there is no support for. | |
4965 | */ | |
4966 | log_fatal("Impossible condition at %s:%d.", MDL); | |
4967 | #endif | |
4968 | break; | |
4969 | ||
98311e4b DH |
4970 | case expr_and: |
4971 | case expr_or: | |
4972 | if ((rhs_context != context_boolean) && | |
4973 | (rhs_context != context_any)) { | |
4974 | parse_warn (cfile, "expecting boolean expressions"); | |
4975 | skip_to_semi (cfile); | |
4976 | expression_dereference (&rhs, MDL); | |
4977 | *lose = 1; | |
4978 | return 0; | |
4979 | } | |
4980 | break; | |
4981 | ||
4982 | case expr_add: | |
4983 | case expr_subtract: | |
4984 | case expr_divide: | |
4985 | case expr_multiply: | |
4986 | case expr_remainder: | |
4987 | case expr_binary_and: | |
4988 | case expr_binary_or: | |
4989 | case expr_binary_xor: | |
4990 | if ((rhs_context != context_numeric) && | |
4991 | (rhs_context != context_any)) { | |
4992 | parse_warn (cfile, "expecting numeric expressions"); | |
4993 | skip_to_semi (cfile); | |
4994 | expression_dereference (&rhs, MDL); | |
4995 | *lose = 1; | |
4996 | return 0; | |
4997 | } | |
4998 | break; | |
4999 | ||
5000 | default: | |
5001 | break; | |
5002 | } | |
5003 | } | |
5004 | ||
02a015fb TL |
5005 | /* Now, if we didn't find a binary operator, we're done parsing |
5006 | this subexpression, so combine it with the preceding binary | |
5007 | operator and return the result. */ | |
5008 | if (next_op == expr_none) { | |
4bd8800e | 5009 | if (!expression_allocate (expr, MDL)) |
8ae2d595 | 5010 | log_fatal ("Can't allocate expression!"); |
02a015fb TL |
5011 | |
5012 | (*expr) -> op = binop; | |
5013 | /* All the binary operators' data union members | |
5014 | are the same, so we'll cheat and use the member | |
5015 | for the equals operator. */ | |
5016 | (*expr) -> data.equal [0] = lhs; | |
5017 | (*expr) -> data.equal [1] = rhs; | |
5018 | return 1; | |
5019 | } | |
5020 | ||
5021 | /* Eat the operator token - we now know it was a binary operator... */ | |
b3519f23 | 5022 | token = next_token (&val, (unsigned *)0, cfile); |
02a015fb | 5023 | |
02a015fb TL |
5024 | /* Now combine the LHS and the RHS using binop. */ |
5025 | tmp = (struct expression *)0; | |
4bd8800e | 5026 | if (!expression_allocate (&tmp, MDL)) |
8ae2d595 | 5027 | log_fatal ("No memory for equal precedence combination."); |
02a015fb TL |
5028 | |
5029 | /* Store the LHS and RHS. */ | |
5030 | tmp -> data.equal [0] = lhs; | |
5031 | tmp -> data.equal [1] = rhs; | |
5032 | tmp -> op = binop; | |
5033 | ||
5034 | lhs = tmp; | |
5035 | tmp = (struct expression *)0; | |
5036 | rhs = (struct expression *)0; | |
5037 | ||
5038 | /* Recursions don't return until we have parsed the end of the | |
5039 | expression, so if we recursed earlier, we can now return what | |
5040 | we got. */ | |
5041 | if (next_op == expr_none) { | |
5042 | *expr = lhs; | |
5043 | return 1; | |
5044 | } | |
5045 | ||
5046 | binop = next_op; | |
5047 | goto new_rhs; | |
5048 | } | |
5049 | ||
be6be08d | 5050 | |
b55d0d5f EH |
5051 | int parse_option_data (expr, cfile, lookups, option) |
5052 | struct expression **expr; | |
5053 | struct parse *cfile; | |
5054 | int lookups; | |
5055 | struct option *option; | |
be6be08d | 5056 | { |
b1b7b521 | 5057 | const char *val; |
d8fc5060 | 5058 | const char *fmt = NULL; |
02a015fb | 5059 | struct expression *tmp; |
b55d0d5f | 5060 | enum dhcp_token token; |
a82abfc7 | 5061 | |
be6be08d | 5062 | do { |
b55d0d5f EH |
5063 | /* |
5064 | * Set a flag if this is an array of a simple type (i.e., | |
5065 | * not an array of pairs of IP addresses, or something like | |
5066 | * that. | |
5067 | */ | |
f800f4f6 | 5068 | int uniform = 0; |
be6be08d | 5069 | |
d8fc5060 TL |
5070 | and_again: |
5071 | /* Set fmt to start of format for 'A' and one char back | |
d5341d9b SK |
5072 | * for 'a'. |
5073 | */ | |
5074 | if ((fmt != NULL) && (fmt != option->format) && (*fmt == 'a')) | |
d8fc5060 | 5075 | fmt -= 1; |
d5341d9b SK |
5076 | else if ((fmt == NULL) || (*fmt == 'A')) |
5077 | fmt = option->format; | |
d8fc5060 TL |
5078 | |
5079 | /* 'a' means always uniform */ | |
1babd56e | 5080 | if ((fmt[0] != 'Z') && (tolower((unsigned char)fmt[1]) == 'a')) |
f800f4f6 | 5081 | uniform = 1; |
d8fc5060 | 5082 | |
f800f4f6 | 5083 | do { |
d8fc5060 | 5084 | if ((*fmt == 'A') || (*fmt == 'a')) |
be6be08d | 5085 | break; |
e1a40211 SR |
5086 | if (*fmt == 'o') { |
5087 | /* consume the optional flag */ | |
5088 | fmt++; | |
d8fc5060 | 5089 | continue; |
e1a40211 SR |
5090 | } |
5091 | ||
5092 | if (fmt[1] == 'o') { | |
5093 | /* | |
5094 | * A value for the current format is | |
5095 | * optional - check to see if the next | |
5096 | * token is a semi-colon if so we don't | |
5097 | * need to parse it and doing so would | |
5098 | * consume the semi-colon which our | |
5099 | * caller is expecting to parse | |
5100 | */ | |
5101 | token = peek_token(&val, (unsigned *)0, | |
5102 | cfile); | |
5103 | if (token == SEMI) { | |
5104 | fmt++; | |
5105 | continue; | |
5106 | } | |
5107 | } | |
b55d0d5f EH |
5108 | |
5109 | tmp = *expr; | |
5110 | *expr = NULL; | |
4cafb815 | 5111 | |
b55d0d5f | 5112 | if (!parse_option_token(expr, cfile, &fmt, tmp, |
4cafb815 | 5113 | uniform, lookups)) { |
d8fc5060 TL |
5114 | if (fmt [1] != 'o') { |
5115 | if (tmp) | |
5116 | expression_dereference (&tmp, | |
5117 | MDL); | |
5118 | return 0; | |
5119 | } | |
b55d0d5f EH |
5120 | *expr = tmp; |
5121 | tmp = NULL; | |
02a015fb | 5122 | } |
4cafb815 | 5123 | if (tmp) |
4bd8800e | 5124 | expression_dereference (&tmp, MDL); |
f800f4f6 | 5125 | |
4cafb815 | 5126 | fmt++; |
f800f4f6 SK |
5127 | } while (*fmt != '\0'); |
5128 | ||
d8fc5060 | 5129 | if ((*fmt == 'A') || (*fmt == 'a')) { |
b3519f23 | 5130 | token = peek_token (&val, (unsigned *)0, cfile); |
d8fc5060 | 5131 | /* Comma means: continue with next element in array */ |
be6be08d | 5132 | if (token == COMMA) { |
b3519f23 TL |
5133 | token = next_token (&val, |
5134 | (unsigned *)0, cfile); | |
be6be08d TL |
5135 | continue; |
5136 | } | |
d8fc5060 TL |
5137 | /* no comma: end of array. |
5138 | 'A' or end of string means: leave the loop */ | |
5139 | if ((*fmt == 'A') || (fmt[1] == '\0')) | |
5140 | break; | |
5141 | /* 'a' means: go on with next char */ | |
5142 | if (*fmt == 'a') { | |
5143 | fmt++; | |
5144 | goto and_again; | |
5145 | } | |
be6be08d | 5146 | } |
d8fc5060 | 5147 | } while ((*fmt == 'A') || (*fmt == 'a')); |
be6be08d | 5148 | |
b55d0d5f EH |
5149 | return 1; |
5150 | } | |
5151 | ||
5152 | /* option-statement :== identifier DOT identifier <syntax> SEMI | |
5153 | | identifier <syntax> SEMI | |
5154 | ||
5155 | Option syntax is handled specially through format strings, so it | |
5156 | would be painful to come up with BNF for it. However, it always | |
5157 | starts as above and ends in a SEMI. */ | |
5158 | ||
5159 | int parse_option_statement (result, cfile, lookups, option, op) | |
5160 | struct executable_statement **result; | |
5161 | struct parse *cfile; | |
5162 | int lookups; | |
5163 | struct option *option; | |
5164 | enum statement_op op; | |
5165 | { | |
5166 | const char *val; | |
5167 | enum dhcp_token token; | |
5168 | struct expression *expr = (struct expression *)0; | |
5169 | int lose; | |
b55d0d5f EH |
5170 | |
5171 | token = peek_token (&val, (unsigned *)0, cfile); | |
4cafb815 | 5172 | if ((token == SEMI) && (option->format[0] != 'Z')) { |
b55d0d5f | 5173 | /* Eat the semicolon... */ |
f800f4f6 SK |
5174 | /* |
5175 | * XXXSK: I'm not sure why we should ever get here, but we | |
5176 | * do during our startup. This confuses things if | |
5177 | * we are parsing a zero-length option, so don't | |
5178 | * eat the semicolon token in that case. | |
5179 | */ | |
b55d0d5f | 5180 | token = next_token (&val, (unsigned *)0, cfile); |
f800f4f6 | 5181 | } else if (token == EQUAL) { |
b55d0d5f EH |
5182 | /* Eat the equals sign. */ |
5183 | token = next_token (&val, (unsigned *)0, cfile); | |
5184 | ||
5185 | /* Parse a data expression and use its value for the data. */ | |
5186 | if (!parse_data_expression (&expr, cfile, &lose)) { | |
5187 | /* In this context, we must have an executable | |
5188 | statement, so if we found something else, it's | |
5189 | still an error. */ | |
5190 | if (!lose) { | |
5191 | parse_warn (cfile, | |
5192 | "expecting a data expression."); | |
5193 | skip_to_semi (cfile); | |
5194 | } | |
5195 | return 0; | |
5196 | } | |
f800f4f6 SK |
5197 | } else { |
5198 | if (! parse_option_data(&expr, cfile, lookups, option)) | |
5199 | return 0; | |
b55d0d5f EH |
5200 | } |
5201 | ||
25541f2f | 5202 | if (!parse_semi (cfile)) |
79a65726 | 5203 | return 0; |
4bd8800e | 5204 | if (!executable_statement_allocate (result, MDL)) |
79a65726 | 5205 | log_fatal ("no memory for option statement."); |
b55d0d5f EH |
5206 | |
5207 | (*result)->op = op; | |
5208 | if (expr && !option_cache (&(*result)->data.option, | |
5209 | NULL, expr, option, MDL)) | |
52c9d530 | 5210 | log_fatal ("no memory for option cache"); |
b55d0d5f | 5211 | |
d758ad8c TL |
5212 | if (expr) |
5213 | expression_dereference (&expr, MDL); | |
b55d0d5f | 5214 | |
79a65726 | 5215 | return 1; |
be6be08d TL |
5216 | } |
5217 | ||
02a015fb TL |
5218 | int parse_option_token (rv, cfile, fmt, expr, uniform, lookups) |
5219 | struct expression **rv; | |
4615d498 | 5220 | struct parse *cfile; |
63a0ff88 | 5221 | const char **fmt; |
be6be08d TL |
5222 | struct expression *expr; |
5223 | int uniform; | |
5224 | int lookups; | |
5225 | { | |
b1b7b521 | 5226 | const char *val; |
02a015fb TL |
5227 | enum dhcp_token token; |
5228 | struct expression *t = (struct expression *)0; | |
be6be08d | 5229 | unsigned char buf [4]; |
b3519f23 | 5230 | unsigned len; |
be6be08d | 5231 | struct iaddr addr; |
28868515 | 5232 | int compress; |
57fbc772 | 5233 | isc_boolean_t freeval = ISC_FALSE; |
b49c02cc | 5234 | const char *f, *g; |
42c6a803 | 5235 | struct enumeration_value *e; |
be6be08d | 5236 | |
63a0ff88 | 5237 | switch (**fmt) { |
52c9d530 | 5238 | case 'U': |
98311e4b | 5239 | token = next_token (&val, &len, cfile); |
52c9d530 | 5240 | if (!is_identifier (token)) { |
63a0ff88 | 5241 | if ((*fmt) [1] != 'o') { |
d8fc5060 | 5242 | parse_warn (cfile, "expecting identifier."); |
98311e4b DH |
5243 | if (token != SEMI) |
5244 | skip_to_semi (cfile); | |
d8fc5060 | 5245 | } |
52c9d530 TL |
5246 | return 0; |
5247 | } | |
b1b7b521 | 5248 | if (!make_const_data (&t, (const unsigned char *)val, |
d758ad8c | 5249 | len, 1, 1, MDL)) |
52c9d530 TL |
5250 | log_fatal ("No memory for %s", val); |
5251 | break; | |
5252 | ||
962dc4ab | 5253 | case 'E': |
b49c02cc TL |
5254 | g = strchr (*fmt, '.'); |
5255 | if (!g) { | |
962dc4ab TL |
5256 | parse_warn (cfile, |
5257 | "malformed encapsulation format (bug!)"); | |
5258 | skip_to_semi (cfile); | |
5259 | return 0; | |
5260 | } | |
b49c02cc | 5261 | *fmt = g; |
be6be08d | 5262 | case 'X': |
b3519f23 | 5263 | token = peek_token (&val, (unsigned *)0, cfile); |
be6be08d | 5264 | if (token == NUMBER_OR_NAME || token == NUMBER) { |
4bd8800e | 5265 | if (!expression_allocate (&t, MDL)) |
02a015fb | 5266 | return 0; |
8cc4d857 | 5267 | if (!parse_cshl (&t -> data.const_data, cfile)) { |
4bd8800e | 5268 | expression_dereference (&t, MDL); |
01e20b9e | 5269 | return 0; |
8cc4d857 | 5270 | } |
efc79acb | 5271 | t -> op = expr_const_data; |
be6be08d | 5272 | } else { |
98311e4b DH |
5273 | token = next_token (&val, &len, cfile); |
5274 | ||
5275 | if(token == STRING) { | |
5276 | if (!make_const_data (&t, | |
5277 | (const unsigned char *)val, | |
5278 | len, 1, 1, MDL)) | |
5279 | log_fatal ("No memory for \"%s\"", val); | |
98311e4b | 5280 | } else { |
b55d0d5f EH |
5281 | if ((*fmt) [1] != 'o') { |
5282 | parse_warn (cfile, "expecting string " | |
5283 | "or hexadecimal data."); | |
5284 | skip_to_semi (cfile); | |
5285 | } | |
98311e4b | 5286 | return 0; |
d8fc5060 | 5287 | } |
be6be08d TL |
5288 | } |
5289 | break; | |
dba5803b DH |
5290 | |
5291 | case 'D': /* Domain list... */ | |
98bd7ca0 DH |
5292 | if ((*fmt)[1] == 'c') { |
5293 | compress = 1; | |
5294 | /* Skip the compress-flag atom. */ | |
5295 | (*fmt)++; | |
5296 | } else | |
5297 | compress = 0; | |
5298 | ||
5299 | t = parse_domain_list(cfile, compress); | |
dba5803b DH |
5300 | |
5301 | if (!t) { | |
5302 | if ((*fmt)[1] != 'o') | |
5303 | skip_to_semi(cfile); | |
5304 | return 0; | |
5305 | } | |
5306 | ||
5307 | break; | |
5308 | ||
d758ad8c TL |
5309 | case 'd': /* Domain name... */ |
5310 | val = parse_host_name (cfile); | |
5311 | if (!val) { | |
5312 | parse_warn (cfile, "not a valid domain name."); | |
5313 | skip_to_semi (cfile); | |
5314 | return 0; | |
5315 | } | |
5316 | len = strlen (val); | |
57fbc772 | 5317 | freeval = ISC_TRUE; |
d758ad8c TL |
5318 | goto make_string; |
5319 | ||
be6be08d | 5320 | case 't': /* Text string... */ |
98311e4b | 5321 | token = next_token (&val, &len, cfile); |
be6be08d | 5322 | if (token != STRING && !is_identifier (token)) { |
63a0ff88 | 5323 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5324 | parse_warn (cfile, "expecting string."); |
5325 | if (token != SEMI) | |
5326 | skip_to_semi (cfile); | |
5327 | } | |
02a015fb | 5328 | return 0; |
be6be08d | 5329 | } |
d758ad8c | 5330 | make_string: |
b1b7b521 | 5331 | if (!make_const_data (&t, (const unsigned char *)val, |
d758ad8c | 5332 | len, 1, 1, MDL)) |
8ae2d595 | 5333 | log_fatal ("No memory for concatenation"); |
57fbc772 SR |
5334 | if (freeval == ISC_TRUE) { |
5335 | dfree((char *)val, MDL); | |
5336 | freeval = ISC_FALSE; | |
5337 | } | |
be6be08d TL |
5338 | break; |
5339 | ||
42c6a803 | 5340 | case 'N': |
63a0ff88 | 5341 | f = (*fmt) + 1; |
b49c02cc TL |
5342 | g = strchr (*fmt, '.'); |
5343 | if (!g) { | |
42c6a803 TL |
5344 | parse_warn (cfile, "malformed %s (bug!)", |
5345 | "enumeration format"); | |
5346 | foo: | |
5347 | skip_to_semi (cfile); | |
5348 | return 0; | |
5349 | } | |
b49c02cc | 5350 | *fmt = g; |
b3519f23 | 5351 | token = next_token (&val, (unsigned *)0, cfile); |
42c6a803 TL |
5352 | if (!is_identifier (token)) { |
5353 | parse_warn (cfile, | |
5354 | "identifier expected"); | |
5355 | goto foo; | |
5356 | } | |
c54db708 | 5357 | e = find_enumeration_value (f, (*fmt) - f, &len, val); |
42c6a803 TL |
5358 | if (!e) { |
5359 | parse_warn (cfile, "unknown value"); | |
5360 | goto foo; | |
5361 | } | |
c54db708 | 5362 | if (!make_const_data (&t, &e -> value, len, 0, 1, MDL)) |
42c6a803 TL |
5363 | return 0; |
5364 | break; | |
5365 | ||
be6be08d | 5366 | case 'I': /* IP address or hostname. */ |
02a015fb TL |
5367 | if (lookups) { |
5368 | if (!parse_ip_addr_or_hostname (&t, cfile, uniform)) | |
5369 | return 0; | |
5370 | } else { | |
be6be08d | 5371 | if (!parse_ip_addr (cfile, &addr)) |
02a015fb | 5372 | return 0; |
d758ad8c TL |
5373 | if (!make_const_data (&t, addr.iabuf, addr.len, |
5374 | 0, 1, MDL)) | |
02a015fb | 5375 | return 0; |
be6be08d | 5376 | } |
be6be08d | 5377 | break; |
98bd7ca0 DH |
5378 | |
5379 | case '6': /* IPv6 address. */ | |
5380 | if (!parse_ip6_addr(cfile, &addr)) { | |
5381 | return 0; | |
5382 | } | |
5383 | if (!make_const_data(&t, addr.iabuf, addr.len, 0, 1, MDL)) { | |
5384 | return 0; | |
5385 | } | |
5386 | break; | |
be6be08d | 5387 | |
fdac15d9 | 5388 | case 'T': /* Lease interval. */ |
98311e4b | 5389 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 TL |
5390 | if (token != INFINITE) |
5391 | goto check_number; | |
5392 | putLong (buf, -1); | |
d758ad8c | 5393 | if (!make_const_data (&t, buf, 4, 0, 1, MDL)) |
fdac15d9 TL |
5394 | return 0; |
5395 | break; | |
5396 | ||
be6be08d TL |
5397 | case 'L': /* Unsigned 32-bit integer... */ |
5398 | case 'l': /* Signed 32-bit integer... */ | |
98311e4b | 5399 | token = next_token (&val, (unsigned *)0, cfile); |
fdac15d9 | 5400 | check_number: |
98311e4b | 5401 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) { |
be6be08d | 5402 | need_number: |
63a0ff88 | 5403 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5404 | parse_warn (cfile, "expecting number."); |
5405 | if (token != SEMI) | |
5406 | skip_to_semi (cfile); | |
5407 | } | |
02a015fb | 5408 | return 0; |
be6be08d | 5409 | } |
4615d498 | 5410 | convert_num (cfile, buf, val, 0, 32); |
d758ad8c | 5411 | if (!make_const_data (&t, buf, 4, 0, 1, MDL)) |
02a015fb | 5412 | return 0; |
be6be08d | 5413 | break; |
02a015fb | 5414 | |
be6be08d TL |
5415 | case 's': /* Signed 16-bit integer. */ |
5416 | case 'S': /* Unsigned 16-bit integer. */ | |
b3519f23 | 5417 | token = next_token (&val, (unsigned *)0, cfile); |
98311e4b DH |
5418 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) |
5419 | goto need_number; | |
4615d498 | 5420 | convert_num (cfile, buf, val, 0, 16); |
d758ad8c | 5421 | if (!make_const_data (&t, buf, 2, 0, 1, MDL)) |
02a015fb | 5422 | return 0; |
be6be08d | 5423 | break; |
02a015fb | 5424 | |
be6be08d TL |
5425 | case 'b': /* Signed 8-bit integer. */ |
5426 | case 'B': /* Unsigned 8-bit integer. */ | |
b3519f23 | 5427 | token = next_token (&val, (unsigned *)0, cfile); |
98311e4b DH |
5428 | if ((token != NUMBER) && (token != NUMBER_OR_NAME)) |
5429 | goto need_number; | |
4615d498 | 5430 | convert_num (cfile, buf, val, 0, 8); |
d758ad8c | 5431 | if (!make_const_data (&t, buf, 1, 0, 1, MDL)) |
02a015fb | 5432 | return 0; |
be6be08d | 5433 | break; |
02a015fb | 5434 | |
be6be08d | 5435 | case 'f': /* Boolean flag. */ |
98311e4b | 5436 | token = next_token (&val, (unsigned *)0, cfile); |
be6be08d | 5437 | if (!is_identifier (token)) { |
63a0ff88 | 5438 | if ((*fmt) [1] != 'o') |
d8fc5060 | 5439 | parse_warn (cfile, "expecting identifier."); |
be6be08d | 5440 | bad_flag: |
63a0ff88 | 5441 | if ((*fmt) [1] != 'o') { |
d8fc5060 TL |
5442 | if (token != SEMI) |
5443 | skip_to_semi (cfile); | |
5444 | } | |
02a015fb | 5445 | return 0; |
be6be08d TL |
5446 | } |
5447 | if (!strcasecmp (val, "true") | |
5448 | || !strcasecmp (val, "on")) | |
5449 | buf [0] = 1; | |
5450 | else if (!strcasecmp (val, "false") | |
5451 | || !strcasecmp (val, "off")) | |
5452 | buf [0] = 0; | |
0776fd12 TL |
5453 | else if (!strcasecmp (val, "ignore")) |
5454 | buf [0] = 2; | |
be6be08d | 5455 | else { |
63a0ff88 | 5456 | if ((*fmt) [1] != 'o') |
d8fc5060 | 5457 | parse_warn (cfile, "expecting boolean."); |
be6be08d TL |
5458 | goto bad_flag; |
5459 | } | |
d758ad8c | 5460 | if (!make_const_data (&t, buf, 1, 0, 1, MDL)) |
02a015fb | 5461 | return 0; |
be6be08d | 5462 | break; |
02a015fb | 5463 | |
4cafb815 EH |
5464 | case 'Z': /* Zero-length option. */ |
5465 | token = peek_token (&val, (unsigned *)0, cfile); | |
5466 | if (token != SEMI) { | |
5467 | parse_warn(cfile, "semicolon expected."); | |
5468 | skip_to_semi(cfile); | |
5469 | } | |
5470 | buf[0] = '\0'; | |
f800f4f6 SK |
5471 | if (!make_const_data(&t, /* expression */ |
5472 | buf, /* buffer */ | |
5473 | 0, /* length */ | |
5474 | 0, /* terminated */ | |
5475 | 1, /* allocate */ | |
5476 | MDL)) | |
5477 | return 0; | |
5478 | break; | |
5479 | ||
be6be08d | 5480 | default: |
4cafb815 | 5481 | parse_warn (cfile, "Bad format '%c' in parse_option_token.", |
63a0ff88 | 5482 | **fmt); |
be6be08d | 5483 | skip_to_semi (cfile); |
02a015fb | 5484 | return 0; |
be6be08d | 5485 | } |
02a015fb TL |
5486 | if (expr) { |
5487 | if (!make_concat (rv, expr, t)) | |
5488 | return 0; | |
02a015fb | 5489 | } else |
d758ad8c TL |
5490 | expression_reference (rv, t, MDL); |
5491 | expression_dereference (&t, MDL); | |
02a015fb | 5492 | return 1; |
be6be08d | 5493 | } |
74f45f96 | 5494 | |
9a7f6fcd TL |
5495 | int parse_option_decl (oc, cfile) |
5496 | struct option_cache **oc; | |
5497 | struct parse *cfile; | |
5498 | { | |
5499 | const char *val; | |
5500 | int token; | |
5501 | u_int8_t buf [4]; | |
5502 | u_int8_t hunkbuf [1024]; | |
5503 | unsigned hunkix = 0; | |
42c6a803 | 5504 | const char *fmt, *f; |
4cba29f0 | 5505 | struct option *option=NULL; |
9a7f6fcd TL |
5506 | struct iaddr ip_addr; |
5507 | u_int8_t *dp; | |
98bd7ca0 | 5508 | const u_int8_t *cdp; |
9a7f6fcd TL |
5509 | unsigned len; |
5510 | int nul_term = 0; | |
5511 | struct buffer *bp; | |
5512 | int known = 0; | |
98bd7ca0 DH |
5513 | int compress; |
5514 | struct expression *express = NULL; | |
42c6a803 | 5515 | struct enumeration_value *e; |
f7fdb216 | 5516 | isc_result_t status; |
9a7f6fcd | 5517 | |
f7fdb216 DH |
5518 | status = parse_option_name (cfile, 0, &known, &option); |
5519 | if (status != ISC_R_SUCCESS || option == NULL) | |
9a7f6fcd TL |
5520 | return 0; |
5521 | ||
5522 | /* Parse the option data... */ | |
5523 | do { | |
9a7f6fcd TL |
5524 | for (fmt = option -> format; *fmt; fmt++) { |
5525 | if (*fmt == 'A') | |
5526 | break; | |
507fe25f FD |
5527 | if (*fmt == 'o' && fmt != option -> format) |
5528 | continue; | |
9a7f6fcd TL |
5529 | switch (*fmt) { |
5530 | case 'E': | |
5531 | fmt = strchr (fmt, '.'); | |
5532 | if (!fmt) { | |
5533 | parse_warn (cfile, | |
5534 | "malformed %s (bug!)", | |
5535 | "encapsulation format"); | |
f7fdb216 | 5536 | goto parse_exit; |
9a7f6fcd TL |
5537 | } |
5538 | case 'X': | |
5539 | len = parse_X (cfile, &hunkbuf [hunkix], | |
5540 | sizeof hunkbuf - hunkix); | |
5541 | hunkix += len; | |
5542 | break; | |
5543 | ||
5544 | case 't': /* Text string... */ | |
c54db708 FD |
5545 | token = peek_token (&val, |
5546 | &len, cfile); | |
5547 | if (token == SEMI && fmt[1] == 'o') { | |
5548 | fmt++; | |
5549 | break; | |
5550 | } | |
b3519f23 TL |
5551 | token = next_token (&val, |
5552 | &len, cfile); | |
9a7f6fcd TL |
5553 | if (token != STRING) { |
5554 | parse_warn (cfile, | |
5555 | "expecting string."); | |
f7fdb216 | 5556 | goto parse_exit; |
9a7f6fcd | 5557 | } |
9a7f6fcd TL |
5558 | if (hunkix + len + 1 > sizeof hunkbuf) { |
5559 | parse_warn (cfile, | |
5560 | "option data buffer %s", | |
5561 | "overflow"); | |
f7fdb216 | 5562 | goto parse_exit; |
9a7f6fcd TL |
5563 | } |
5564 | memcpy (&hunkbuf [hunkix], val, len + 1); | |
5565 | nul_term = 1; | |
5566 | hunkix += len; | |
5567 | break; | |
5568 | ||
98bd7ca0 DH |
5569 | case 'D': |
5570 | if (fmt[1] == 'c') { | |
5571 | compress = 1; | |
5572 | fmt++; | |
5573 | } else | |
5574 | compress = 0; | |
5575 | ||
5576 | express = parse_domain_list(cfile, compress); | |
5577 | ||
5578 | if (express == NULL) | |
5579 | goto exit; | |
5580 | ||
5581 | if (express->op != expr_const_data) { | |
5582 | parse_warn(cfile, "unexpected " | |
5583 | "expression"); | |
5584 | goto parse_exit; | |
5585 | } | |
5586 | ||
5587 | len = express->data.const_data.len; | |
5588 | cdp = express->data.const_data.data; | |
5589 | ||
5590 | if ((hunkix + len) > sizeof(hunkbuf)) { | |
5591 | parse_warn(cfile, "option data buffer " | |
5592 | "overflow"); | |
5593 | goto parse_exit; | |
5594 | } | |
5595 | memcpy(&hunkbuf[hunkix], cdp, len); | |
5596 | hunkix += len; | |
5597 | ||
5598 | expression_dereference(&express, MDL); | |
5599 | break; | |
5600 | ||
42c6a803 | 5601 | case 'N': |
c54db708 | 5602 | f = fmt + 1; |
42c6a803 TL |
5603 | fmt = strchr (fmt, '.'); |
5604 | if (!fmt) { | |
5605 | parse_warn (cfile, | |
5606 | "malformed %s (bug!)", | |
5607 | "enumeration format"); | |
f7fdb216 | 5608 | goto parse_exit; |
42c6a803 | 5609 | } |
b3519f23 TL |
5610 | token = next_token (&val, |
5611 | (unsigned *)0, cfile); | |
42c6a803 TL |
5612 | if (!is_identifier (token)) { |
5613 | parse_warn (cfile, | |
5614 | "identifier expected"); | |
f7fdb216 | 5615 | goto parse_exit; |
42c6a803 | 5616 | } |
c54db708 FD |
5617 | e = find_enumeration_value (f, fmt - f, |
5618 | &len, val); | |
42c6a803 TL |
5619 | if (!e) { |
5620 | parse_warn (cfile, | |
5621 | "unknown value"); | |
f7fdb216 | 5622 | goto parse_exit; |
42c6a803 | 5623 | } |
42c6a803 TL |
5624 | dp = &e -> value; |
5625 | goto alloc; | |
5626 | ||
98bd7ca0 DH |
5627 | case '6': |
5628 | if (!parse_ip6_addr(cfile, &ip_addr)) | |
5629 | goto exit; | |
5630 | len = ip_addr.len; | |
5631 | dp = ip_addr.iabuf; | |
5632 | goto alloc; | |
5633 | ||
9a7f6fcd TL |
5634 | case 'I': /* IP address. */ |
5635 | if (!parse_ip_addr (cfile, &ip_addr)) | |
f7fdb216 | 5636 | goto exit; |
9a7f6fcd TL |
5637 | len = ip_addr.len; |
5638 | dp = ip_addr.iabuf; | |
5639 | ||
5640 | alloc: | |
5641 | if (hunkix + len > sizeof hunkbuf) { | |
5642 | parse_warn (cfile, | |
5643 | "option data buffer %s", | |
5644 | "overflow"); | |
f7fdb216 | 5645 | goto parse_exit; |
9a7f6fcd TL |
5646 | } |
5647 | memcpy (&hunkbuf [hunkix], dp, len); | |
5648 | hunkix += len; | |
5649 | break; | |
5650 | ||
5651 | case 'L': /* Unsigned 32-bit integer... */ | |
5652 | case 'l': /* Signed 32-bit integer... */ | |
b3519f23 TL |
5653 | token = next_token (&val, |
5654 | (unsigned *)0, cfile); | |
98311e4b DH |
5655 | if ((token != NUMBER) && |
5656 | (token != NUMBER_OR_NAME)) { | |
9a7f6fcd TL |
5657 | need_number: |
5658 | parse_warn (cfile, | |
5659 | "expecting number."); | |
5660 | if (token != SEMI) | |
f7fdb216 DH |
5661 | goto parse_exit; |
5662 | else | |
5663 | goto exit; | |
9a7f6fcd TL |
5664 | } |
5665 | convert_num (cfile, buf, val, 0, 32); | |
5666 | len = 4; | |
5667 | dp = buf; | |
5668 | goto alloc; | |
5669 | ||
5670 | case 's': /* Signed 16-bit integer. */ | |
5671 | case 'S': /* Unsigned 16-bit integer. */ | |
b3519f23 TL |
5672 | token = next_token (&val, |
5673 | (unsigned *)0, cfile); | |
98311e4b DH |
5674 | if ((token != NUMBER) && |
5675 | (token != NUMBER_OR_NAME)) | |
9a7f6fcd TL |
5676 | goto need_number; |
5677 | convert_num (cfile, buf, val, 0, 16); | |
5678 | len = 2; | |
5679 | dp = buf; | |
5680 | goto alloc; | |
5681 | ||
5682 | case 'b': /* Signed 8-bit integer. */ | |
5683 | case 'B': /* Unsigned 8-bit integer. */ | |
b3519f23 TL |
5684 | token = next_token (&val, |
5685 | (unsigned *)0, cfile); | |
98311e4b DH |
5686 | if ((token != NUMBER) && |
5687 | (token != NUMBER_OR_NAME)) | |
9a7f6fcd TL |
5688 | goto need_number; |
5689 | convert_num (cfile, buf, val, 0, 8); | |
5690 | len = 1; | |
5691 | dp = buf; | |
5692 | goto alloc; | |
5693 | ||
5694 | case 'f': /* Boolean flag. */ | |
b3519f23 TL |
5695 | token = next_token (&val, |
5696 | (unsigned *)0, cfile); | |
9a7f6fcd TL |
5697 | if (!is_identifier (token)) { |
5698 | parse_warn (cfile, | |
5699 | "expecting identifier."); | |
5700 | bad_flag: | |
5701 | if (token != SEMI) | |
f7fdb216 DH |
5702 | goto parse_exit; |
5703 | else | |
5704 | goto exit; | |
9a7f6fcd TL |
5705 | } |
5706 | if (!strcasecmp (val, "true") | |
5707 | || !strcasecmp (val, "on")) | |
5708 | buf [0] = 1; | |
5709 | else if (!strcasecmp (val, "false") | |
5710 | || !strcasecmp (val, "off")) | |
5711 | buf [0] = 0; | |
5712 | else { | |
5713 | parse_warn (cfile, | |
5714 | "expecting boolean."); | |
5715 | goto bad_flag; | |
5716 | } | |
5717 | len = 1; | |
5718 | dp = buf; | |
5719 | goto alloc; | |
5720 | ||
4cafb815 EH |
5721 | case 'Z': /* Zero-length option */ |
5722 | token = next_token(&val, (unsigned *)0, cfile); | |
5723 | if (token != SEMI) { | |
5724 | parse_warn(cfile, | |
5725 | "semicolon expected."); | |
5726 | goto parse_exit; | |
5727 | } | |
5728 | len = 0; | |
5729 | buf[0] = '\0'; | |
5730 | break; | |
5731 | ||
9a7f6fcd TL |
5732 | default: |
5733 | log_error ("parse_option_param: Bad format %c", | |
5734 | *fmt); | |
f7fdb216 | 5735 | goto parse_exit; |
9a7f6fcd TL |
5736 | } |
5737 | } | |
b3519f23 | 5738 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5739 | } while (*fmt == 'A' && token == COMMA); |
5740 | ||
5741 | if (token != SEMI) { | |
5742 | parse_warn (cfile, "semicolon expected."); | |
f7fdb216 | 5743 | goto parse_exit; |
9a7f6fcd TL |
5744 | } |
5745 | ||
5746 | bp = (struct buffer *)0; | |
5747 | if (!buffer_allocate (&bp, hunkix + nul_term, MDL)) | |
5748 | log_fatal ("no memory to store option declaration."); | |
5749 | if (!bp -> data) | |
5750 | log_fatal ("out of memory allocating option data."); | |
5751 | memcpy (bp -> data, hunkbuf, hunkix + nul_term); | |
5752 | ||
5753 | if (!option_cache_allocate (oc, MDL)) | |
5754 | log_fatal ("out of memory allocating option cache."); | |
5755 | ||
5756 | (*oc) -> data.buffer = bp; | |
5757 | (*oc) -> data.data = &bp -> data [0]; | |
5758 | (*oc) -> data.terminated = nul_term; | |
5759 | (*oc) -> data.len = hunkix; | |
f7fdb216 DH |
5760 | option_reference(&(*oc)->option, option, MDL); |
5761 | option_dereference(&option, MDL); | |
9a7f6fcd | 5762 | return 1; |
f7fdb216 DH |
5763 | |
5764 | parse_exit: | |
98bd7ca0 DH |
5765 | if (express != NULL) |
5766 | expression_dereference(&express, MDL); | |
f7fdb216 DH |
5767 | skip_to_semi (cfile); |
5768 | exit: | |
5769 | option_dereference(&option, MDL); | |
5770 | ||
5771 | return 0; | |
9a7f6fcd TL |
5772 | } |
5773 | ||
5774 | /* Consider merging parse_cshl into this. */ | |
5775 | ||
5776 | int parse_X (cfile, buf, max) | |
5777 | struct parse *cfile; | |
5778 | u_int8_t *buf; | |
5779 | unsigned max; | |
5780 | { | |
5781 | int token; | |
5782 | const char *val; | |
5783 | unsigned len; | |
9a7f6fcd | 5784 | |
b3519f23 | 5785 | token = peek_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5786 | if (token == NUMBER_OR_NAME || token == NUMBER) { |
5787 | len = 0; | |
5788 | do { | |
b3519f23 | 5789 | token = next_token (&val, (unsigned *)0, cfile); |
9a7f6fcd TL |
5790 | if (token != NUMBER && token != NUMBER_OR_NAME) { |
5791 | parse_warn (cfile, | |
5792 | "expecting hexadecimal constant."); | |
5793 | skip_to_semi (cfile); | |
5794 | return 0; | |
5795 | } | |
5796 | convert_num (cfile, &buf [len], val, 16, 8); | |
5797 | if (len++ > max) { | |
5798 | parse_warn (cfile, | |
5799 | "hexadecimal constant too long."); | |
5800 | skip_to_semi (cfile); | |
5801 | return 0; | |
5802 | } | |
b3519f23 | 5803 | token = peek_token (&val, (unsigned *)0, cfile); |
9a7f6fcd | 5804 | if (token == COLON) |
b3519f23 TL |
5805 | token = next_token (&val, |
5806 | (unsigned *)0, cfile); | |
9a7f6fcd TL |
5807 | } while (token == COLON); |
5808 | val = (char *)buf; | |
5809 | } else if (token == STRING) { | |
b3519f23 | 5810 | token = next_token (&val, &len, cfile); |
9a7f6fcd TL |
5811 | if (len + 1 > max) { |
5812 | parse_warn (cfile, "string constant too long."); | |
5813 | skip_to_semi (cfile); | |
5814 | return 0; | |
5815 | } | |
5816 | memcpy (buf, val, len + 1); | |
5817 | } else { | |
5818 | parse_warn (cfile, "expecting string or hexadecimal data"); | |
5819 | skip_to_semi (cfile); | |
5820 | return 0; | |
5821 | } | |
5822 | return len; | |
5823 | } | |
5824 | ||
cfdfb9f1 | 5825 | int parse_warn (struct parse *cfile, const char *fmt, ...) |
4bd8800e TL |
5826 | { |
5827 | va_list list; | |
4bd8800e TL |
5828 | char lexbuf [256]; |
5829 | char mbuf [1024]; | |
5830 | char fbuf [1024]; | |
5831 | unsigned i, lix; | |
5832 | ||
5833 | do_percentm (mbuf, fmt); | |
98311e4b DH |
5834 | /* %Audit% This is log output. %2004.06.17,Safe% |
5835 | * If we truncate we hope the user can get a hint from the log. | |
5836 | */ | |
4bd8800e TL |
5837 | snprintf (fbuf, sizeof fbuf, "%s line %d: %s", |
5838 | cfile -> tlname, cfile -> lexline, mbuf); | |
4bd8800e | 5839 | |
cfdfb9f1 | 5840 | va_start (list, fmt); |
4bd8800e TL |
5841 | vsnprintf (mbuf, sizeof mbuf, fbuf, list); |
5842 | va_end (list); | |
5843 | ||
5844 | lix = 0; | |
5845 | for (i = 0; | |
5846 | cfile -> token_line [i] && i < (cfile -> lexchar - 1); i++) { | |
5847 | if (lix < (sizeof lexbuf) - 1) | |
5848 | lexbuf [lix++] = ' '; | |
5849 | if (cfile -> token_line [i] == '\t') { | |
28868515 | 5850 | for (; lix < (sizeof lexbuf) - 1 && (lix & 7); lix++) |
4bd8800e TL |
5851 | lexbuf [lix] = ' '; |
5852 | } | |
5853 | } | |
5854 | lexbuf [lix] = 0; | |
5855 | ||
5856 | #ifndef DEBUG | |
4f9e9f47 TL |
5857 | syslog (log_priority | LOG_ERR, "%s", mbuf); |
5858 | syslog (log_priority | LOG_ERR, "%s", cfile -> token_line); | |
4bd8800e TL |
5859 | if (cfile -> lexchar < 81) |
5860 | syslog (log_priority | LOG_ERR, "%s^", lexbuf); | |
5861 | #endif | |
5862 | ||
5863 | if (log_perror) { | |
ae566556 SR |
5864 | IGNORE_RET (write (STDERR_FILENO, mbuf, strlen (mbuf))); |
5865 | IGNORE_RET (write (STDERR_FILENO, "\n", 1)); | |
5866 | IGNORE_RET (write (STDERR_FILENO, cfile -> token_line, | |
5867 | strlen (cfile -> token_line))); | |
5868 | IGNORE_RET (write (STDERR_FILENO, "\n", 1)); | |
4bd8800e | 5869 | if (cfile -> lexchar < 81) |
ae566556 SR |
5870 | IGNORE_RET (write (STDERR_FILENO, lexbuf, lix)); |
5871 | IGNORE_RET (write (STDERR_FILENO, "^\n", 2)); | |
4bd8800e TL |
5872 | } |
5873 | ||
5874 | cfile -> warnings_occurred = 1; | |
5875 | ||
5876 | return 0; | |
5877 | } | |
dba5803b DH |
5878 | |
5879 | struct expression * | |
98bd7ca0 | 5880 | parse_domain_list(struct parse *cfile, int compress) |
dba5803b DH |
5881 | { |
5882 | const char *val; | |
5883 | enum dhcp_token token = SEMI; | |
5884 | struct expression *t = NULL; | |
5885 | unsigned len, clen = 0; | |
5886 | int result; | |
5887 | unsigned char compbuf[256 * NS_MAXCDNAME]; | |
5888 | const unsigned char *dnptrs[256], **lastdnptr; | |
5889 | ||
5890 | memset(compbuf, 0, sizeof(compbuf)); | |
5891 | memset(dnptrs, 0, sizeof(dnptrs)); | |
5892 | dnptrs[0] = compbuf; | |
5893 | lastdnptr = &dnptrs[255]; | |
5894 | ||
5895 | do { | |
5896 | /* Consume the COMMA token if peeked. */ | |
5897 | if (token == COMMA) | |
5898 | next_token(&val, NULL, cfile); | |
5899 | ||
5900 | /* Get next (or first) value. */ | |
5901 | token = next_token(&val, &len, cfile); | |
5902 | ||
5903 | if (token != STRING) { | |
5904 | parse_warn(cfile, "Expecting a domain string."); | |
5905 | return NULL; | |
5906 | } | |
5907 | ||
98bd7ca0 DH |
5908 | /* If compression pointers are enabled, compress. If not, |
5909 | * just pack the names in series into the buffer. | |
5910 | */ | |
5911 | if (compress) { | |
5912 | result = MRns_name_compress(val, compbuf + clen, | |
5913 | sizeof(compbuf) - clen, | |
5914 | dnptrs, lastdnptr); | |
5915 | ||
5916 | if (result < 0) { | |
5917 | parse_warn(cfile, "Error compressing domain " | |
5918 | "list: %m"); | |
5919 | return NULL; | |
5920 | } | |
dba5803b | 5921 | |
98bd7ca0 DH |
5922 | clen += result; |
5923 | } else { | |
5924 | result = MRns_name_pton(val, compbuf + clen, | |
5925 | sizeof(compbuf) - clen); | |
5926 | ||
5927 | /* result == 1 means the input was fully qualified. | |
5928 | * result == 0 means the input wasn't. | |
5929 | * result == -1 means bad things. | |
5930 | */ | |
5931 | if (result < 0) { | |
5932 | parse_warn(cfile, "Error assembling domain " | |
5933 | "list: %m"); | |
5934 | return NULL; | |
5935 | } | |
5936 | ||
5937 | /* | |
5938 | * We need to figure out how many bytes to increment | |
5939 | * our buffer pointer since pton doesn't tell us. | |
5940 | */ | |
5941 | while (compbuf[clen] != 0) | |
5942 | clen += compbuf[clen] + 1; | |
5943 | ||
5944 | /* Count the last label (0). */ | |
5945 | clen++; | |
dba5803b DH |
5946 | } |
5947 | ||
98bd7ca0 DH |
5948 | if (clen > sizeof(compbuf)) |
5949 | log_fatal("Impossible error at %s:%d", MDL); | |
dba5803b DH |
5950 | |
5951 | token = peek_token(&val, NULL, cfile); | |
5952 | } while (token == COMMA); | |
5953 | ||
5954 | if (!make_const_data(&t, compbuf, clen, 1, 1, MDL)) | |
5955 | log_fatal("No memory for domain list object."); | |
5956 | ||
5957 | return t; | |
5958 | } | |
5959 |