1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665
|
#line 1033 "ifupdown.nw"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#line 1044 "ifupdown.nw"
#include "header.h"
#line 1263 "ifupdown.nw"
#include <errno.h>
#line 1397 "ifupdown.nw"
#include <ctype.h>
#line 1240 "ifupdown.nw"
static int get_line(char **result, size_t *result_len, FILE *f, int *line);
#line 1467 "ifupdown.nw"
static char *next_word(char *buf, char *word, int maxlen);
#line 1704 "ifupdown.nw"
static address_family *get_address_family(address_family *af[], char *name);
#line 1739 "ifupdown.nw"
static method *get_method(address_family *af, char *name);
#line 1800 "ifupdown.nw"
static int duplicate_if(interface_defn *ifa, interface_defn *ifb);
#line 1919 "ifupdown.nw"
allowup_defn *get_allowup(allowup_defn **allowups, char *name);
#line 1957 "ifupdown.nw"
allowup_defn *add_allow_up(char *filename, int line,
allowup_defn *allow_up, char *iface_name);
#line 1174 "ifupdown.nw"
interfaces_file *read_interfaces(char *filename) {
#line 1210 "ifupdown.nw"
FILE *f;
int line;
#line 1247 "ifupdown.nw"
char *buf = NULL;
size_t buf_len = 0;
#line 1447 "ifupdown.nw"
interface_defn *currif = NULL;
mapping_defn *currmap = NULL;
enum { NONE, IFACE, MAPPING } currently_processing = NONE;
#line 1458 "ifupdown.nw"
char firstword[80];
char *rest;
#line 1176 "ifupdown.nw"
interfaces_file *defn;
#line 1195 "ifupdown.nw"
defn = malloc(sizeof(interfaces_file));
if (defn == NULL) {
return NULL;
}
defn->allowups = NULL;
defn->mappings = NULL;
defn->ifaces = NULL;
#line 1179 "ifupdown.nw"
#line 1215 "ifupdown.nw"
f = fopen(filename, "r");
if ( f == NULL ) return NULL;
line = 0;
#line 1181 "ifupdown.nw"
while (
#line 1255 "ifupdown.nw"
get_line(&buf,&buf_len,f,&line)
#line 1181 "ifupdown.nw"
) {
#line 1494 "ifupdown.nw"
rest = next_word(buf, firstword, 80);
if (rest == NULL) continue; /* blank line */
if (strcmp(firstword, "mapping") == 0) {
#line 1546 "ifupdown.nw"
currmap = malloc(sizeof(mapping_defn));
if (currmap == NULL) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1549 "ifupdown.nw"
}
#line 1553 "ifupdown.nw"
currmap->max_matches = 0;
currmap->n_matches = 0;
currmap->match = NULL;
while((rest = next_word(rest, firstword, 80))) {
if (currmap->max_matches == currmap->n_matches) {
char **tmp;
currmap->max_matches = currmap->max_matches * 2 + 1;
tmp = realloc(currmap->match,
sizeof(*tmp) * currmap->max_matches);
if (tmp == NULL) {
currmap->max_matches = (currmap->max_matches - 1) / 2;
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1566 "ifupdown.nw"
}
currmap->match = tmp;
}
currmap->match[currmap->n_matches++] = strdup(firstword);
}
#line 1575 "ifupdown.nw"
currmap->script = NULL;
currmap->max_mappings = 0;
currmap->n_mappings = 0;
currmap->mapping = NULL;
#line 1583 "ifupdown.nw"
{
mapping_defn **where = &defn->mappings;
while(*where != NULL) {
where = &(*where)->next;
}
*where = currmap;
currmap->next = NULL;
}
#line 1499 "ifupdown.nw"
currently_processing = MAPPING;
} else if (strcmp(firstword, "iface") == 0) {
#line 1635 "ifupdown.nw"
{
#line 1668 "ifupdown.nw"
char iface_name[80];
char address_family_name[80];
char method_name[80];
#line 1638 "ifupdown.nw"
#line 1656 "ifupdown.nw"
currif = malloc(sizeof(interface_defn));
if (!currif) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1659 "ifupdown.nw"
}
#line 1640 "ifupdown.nw"
#line 1674 "ifupdown.nw"
rest = next_word(rest, iface_name, 80);
rest = next_word(rest, address_family_name, 80);
rest = next_word(rest, method_name, 80);
if (rest == NULL) {
#line 2013 "ifupdown.nw"
fprintf(stderr, "%s:%d: too few parameters for iface line\n", filename, line);
return NULL;
#line 1680 "ifupdown.nw"
}
if (rest[0] != '\0') {
#line 2018 "ifupdown.nw"
fprintf(stderr, "%s:%d: too many parameters for iface line\n", filename, line);
return NULL;
#line 1684 "ifupdown.nw"
}
#line 1642 "ifupdown.nw"
#line 1690 "ifupdown.nw"
currif->logical_iface = strdup(iface_name);
if (!currif->logical_iface) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1693 "ifupdown.nw"
}
#line 1643 "ifupdown.nw"
#line 1708 "ifupdown.nw"
currif->address_family = get_address_family(addr_fams, address_family_name);
if (!currif->address_family) {
#line 2023 "ifupdown.nw"
fprintf(stderr, "%s:%d: unknown address type\n", filename, line);
return NULL;
#line 1711 "ifupdown.nw"
}
#line 1644 "ifupdown.nw"
#line 1743 "ifupdown.nw"
currif->method = get_method(currif->address_family, method_name);
if (!currif->method) {
#line 2028 "ifupdown.nw"
fprintf(stderr, "%s:%d: unknown method\n", filename, line);
return NULL;
#line 1746 "ifupdown.nw"
return NULL; /* FIXME */
}
#line 1645 "ifupdown.nw"
#line 1766 "ifupdown.nw"
currif->automatic = 1;
currif->max_options = 0;
currif->n_options = 0;
currif->option = NULL;
#line 1647 "ifupdown.nw"
#line 1782 "ifupdown.nw"
{
interface_defn **where = &defn->ifaces;
while(*where != NULL) {
if (duplicate_if(*where, currif)) {
#line 2033 "ifupdown.nw"
fprintf(stderr, "%s:%d: duplicate interface\n", filename, line);
return NULL;
#line 1787 "ifupdown.nw"
}
where = &(*where)->next;
}
*where = currif;
currif->next = NULL;
}
#line 1648 "ifupdown.nw"
}
#line 1502 "ifupdown.nw"
currently_processing = IFACE;
} else if (strcmp(firstword, "auto") == 0) {
#line 1898 "ifupdown.nw"
allowup_defn *auto_ups = get_allowup(&defn->allowups, "auto");
if (!auto_ups) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1901 "ifupdown.nw"
}
while((rest = next_word(rest, firstword, 80))) {
if (!add_allow_up(filename, line, auto_ups, firstword))
return NULL;
}
#line 1505 "ifupdown.nw"
currently_processing = NONE;
} else if (strncmp(firstword, "allow-", 6) == 0 && strlen(firstword) > 6) {
#line 1908 "ifupdown.nw"
allowup_defn *allow_ups = get_allowup(&defn->allowups, firstword + 6);
if (!allow_ups) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1911 "ifupdown.nw"
}
while((rest = next_word(rest, firstword, 80))) {
if (!add_allow_up(filename, line, allow_ups, firstword))
return NULL;
}
#line 1508 "ifupdown.nw"
currently_processing = NONE;
} else {
#line 1515 "ifupdown.nw"
switch(currently_processing) {
case IFACE:
#line 1821 "ifupdown.nw"
if (strcmp(firstword, "post-up") == 0) {
strcpy(firstword, "up");
}
if (strcmp(firstword, "pre-down") == 0) {
strcpy(firstword, "down");
}
#line 1830 "ifupdown.nw"
{
int i;
if (strlen (rest) == 0) {
#line 2059 "ifupdown.nw"
fprintf(stderr, "%s:%d: option with empty value\n", filename, line);
return NULL;
#line 1835 "ifupdown.nw"
}
if (strcmp(firstword, "pre-up") != 0
&& strcmp(firstword, "up") != 0
&& strcmp(firstword, "down") != 0
&& strcmp(firstword, "post-down") != 0)
{
for (i = 0; i < currif->n_options; i++) {
if (strcmp(currif->option[i].name, firstword) == 0) {
#line 2044 "ifupdown.nw"
fprintf(stderr, "%s:%d: duplicate option\n", filename, line);
return NULL;
#line 1845 "ifupdown.nw"
}
}
}
}
#line 1857 "ifupdown.nw"
if (currif->n_options >= currif->max_options) {
#line 1879 "ifupdown.nw"
{
variable *opt;
currif->max_options = currif->max_options + 10;
opt = realloc(currif->option, sizeof(*opt) * currif->max_options);
if (opt == NULL) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1885 "ifupdown.nw"
}
currif->option = opt;
}
#line 1859 "ifupdown.nw"
}
currif->option[currif->n_options].name = strdup(firstword);
currif->option[currif->n_options].value = strdup(rest);
if (!currif->option[currif->n_options].name) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1866 "ifupdown.nw"
}
if (!currif->option[currif->n_options].value) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1870 "ifupdown.nw"
}
currif->n_options++;
#line 1518 "ifupdown.nw"
break;
case MAPPING:
#line 1598 "ifupdown.nw"
if (strcmp(firstword, "script") == 0) {
#line 1608 "ifupdown.nw"
if (currmap->script != NULL) {
#line 2049 "ifupdown.nw"
fprintf(stderr, "%s:%d: duplicate script in mapping\n", filename, line);
return NULL;
#line 1610 "ifupdown.nw"
} else {
currmap->script = strdup(rest);
}
#line 1600 "ifupdown.nw"
} else if (strcmp(firstword, "map") == 0) {
#line 1616 "ifupdown.nw"
if (currmap->max_mappings == currmap->n_mappings) {
char **opt;
currmap->max_mappings = currmap->max_mappings * 2 + 1;
opt = realloc(currmap->mapping, sizeof(*opt) * currmap->max_mappings);
if (opt == NULL) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1622 "ifupdown.nw"
}
currmap->mapping = opt;
}
currmap->mapping[currmap->n_mappings] = strdup(rest);
currmap->n_mappings++;
#line 1602 "ifupdown.nw"
} else {
#line 2054 "ifupdown.nw"
fprintf(stderr, "%s:%d: misplaced option\n", filename, line);
return NULL;
#line 1604 "ifupdown.nw"
}
#line 1521 "ifupdown.nw"
break;
case NONE:
default:
#line 2054 "ifupdown.nw"
fprintf(stderr, "%s:%d: misplaced option\n", filename, line);
return NULL;
#line 1525 "ifupdown.nw"
}
#line 1511 "ifupdown.nw"
}
#line 1183 "ifupdown.nw"
}
if (
#line 1267 "ifupdown.nw"
ferror(f) != 0
#line 1184 "ifupdown.nw"
) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1186 "ifupdown.nw"
}
#line 1221 "ifupdown.nw"
fclose(f);
line = -1;
#line 1190 "ifupdown.nw"
return defn;
}
#line 1280 "ifupdown.nw"
static int get_line(char **result, size_t *result_len, FILE *f, int *line) {
#line 1305 "ifupdown.nw"
size_t pos;
#line 1283 "ifupdown.nw"
do {
#line 1312 "ifupdown.nw"
pos = 0;
#line 1285 "ifupdown.nw"
#line 1323 "ifupdown.nw"
do {
#line 1344 "ifupdown.nw"
if (*result_len - pos < 10) {
char *newstr = realloc(*result, *result_len * 2 + 80);
if (newstr == NULL) {
return 0;
}
*result = newstr;
*result_len = *result_len * 2 + 80;
}
#line 1325 "ifupdown.nw"
#line 1373 "ifupdown.nw"
if (!fgets(*result + pos, *result_len - pos, f)) {
if (ferror(f) == 0 && pos == 0) return 0;
if (ferror(f) != 0) return 0;
}
pos += strlen(*result + pos);
#line 1326 "ifupdown.nw"
} while(
#line 1364 "ifupdown.nw"
pos == *result_len - 1 && (*result)[pos-1] != '\n'
#line 1326 "ifupdown.nw"
);
#line 1385 "ifupdown.nw"
if (pos != 0 && (*result)[pos-1] == '\n') {
(*result)[--pos] = '\0';
}
#line 1330 "ifupdown.nw"
(*line)++;
assert( (*result)[pos] == '\0' );
#line 1286 "ifupdown.nw"
#line 1401 "ifupdown.nw"
{
int first = 0;
while (isspace((*result)[first]) && (*result)[first]) {
first++;
}
memmove(*result, *result + first, pos - first + 1);
pos -= first;
}
#line 1287 "ifupdown.nw"
} while (
#line 1425 "ifupdown.nw"
(*result)[0] == '#'
#line 1287 "ifupdown.nw"
);
while (
#line 1429 "ifupdown.nw"
(*result)[pos-1] == '\\'
#line 1289 "ifupdown.nw"
) {
#line 1433 "ifupdown.nw"
(*result)[--pos] = '\0';
#line 1291 "ifupdown.nw"
#line 1323 "ifupdown.nw"
do {
#line 1344 "ifupdown.nw"
if (*result_len - pos < 10) {
char *newstr = realloc(*result, *result_len * 2 + 80);
if (newstr == NULL) {
return 0;
}
*result = newstr;
*result_len = *result_len * 2 + 80;
}
#line 1325 "ifupdown.nw"
#line 1373 "ifupdown.nw"
if (!fgets(*result + pos, *result_len - pos, f)) {
if (ferror(f) == 0 && pos == 0) return 0;
if (ferror(f) != 0) return 0;
}
pos += strlen(*result + pos);
#line 1326 "ifupdown.nw"
} while(
#line 1364 "ifupdown.nw"
pos == *result_len - 1 && (*result)[pos-1] != '\n'
#line 1326 "ifupdown.nw"
);
#line 1385 "ifupdown.nw"
if (pos != 0 && (*result)[pos-1] == '\n') {
(*result)[--pos] = '\0';
}
#line 1330 "ifupdown.nw"
(*line)++;
assert( (*result)[pos] == '\0' );
#line 1292 "ifupdown.nw"
}
#line 1413 "ifupdown.nw"
while (isspace((*result)[pos-1])) { /* remove trailing whitespace */
pos--;
}
(*result)[pos] = '\0';
#line 1296 "ifupdown.nw"
return 1;
}
#line 1471 "ifupdown.nw"
static char *next_word(char *buf, char *word, int maxlen) {
if (!buf) return NULL;
if (!*buf) return NULL;
while(!isspace(*buf) && *buf) {
if (maxlen-- > 1) *word++ = *buf;
buf++;
}
if (maxlen > 0) *word = '\0';
while(isspace(*buf) && *buf) buf++;
return buf;
}
#line 1720 "ifupdown.nw"
static address_family *get_address_family(address_family *af[], char *name) {
int i;
for (i = 0; af[i]; i++) {
if (strcmp(af[i]->name, name) == 0) {
return af[i];
}
}
return NULL;
}
#line 1751 "ifupdown.nw"
static method *get_method(address_family *af, char *name) {
int i;
for (i = 0; i < af->n_methods; i++) {
if (strcmp(af->method[i].name, name) == 0) {
return &af->method[i];
}
}
return NULL;
}
#line 1804 "ifupdown.nw"
static int duplicate_if(interface_defn *ifa, interface_defn *ifb) {
if (strcmp(ifa->logical_iface, ifb->logical_iface) != 0) return 0;
if (ifa->address_family != ifb->address_family) return 0;
return 1;
}
#line 1922 "ifupdown.nw"
allowup_defn *get_allowup(allowup_defn **allowups, char *name) {
for (; *allowups; allowups = &(*allowups)->next) {
if (strcmp((*allowups)->when, name) == 0) break;
}
if (*allowups == NULL) {
*allowups = malloc(sizeof(allowup_defn));
if (*allowups == NULL) return NULL;
(*allowups)->when = strdup(name);
(*allowups)->next = NULL;
(*allowups)->max_interfaces = 0;
(*allowups)->n_interfaces = 0;
(*allowups)->interfaces = NULL;
}
return *allowups;
}
#line 1947 "ifupdown.nw"
allowup_defn *find_allowup(interfaces_file *defn, char *name) {
allowup_defn *allowups = defn->allowups;
for (; allowups; allowups = allowups->next) {
if (strcmp(allowups->when, name) == 0) break;
}
return allowups;
}
#line 1962 "ifupdown.nw"
allowup_defn *add_allow_up(char *filename, int line,
allowup_defn *allow_up, char *iface_name)
{
#line 1972 "ifupdown.nw"
{
int i;
for (i = 0; i < allow_up->n_interfaces; i++) {
if (strcmp(iface_name, allow_up->interfaces[i]) == 0) {
#line 2038 "ifupdown.nw"
fprintf(stderr, "%s:%d: interface %s declared allow-%s twice\n",
filename, line, iface_name, allow_up->when);
return NULL;
#line 1978 "ifupdown.nw"
}
}
}
#line 1966 "ifupdown.nw"
#line 1984 "ifupdown.nw"
if (allow_up->n_interfaces == allow_up->max_interfaces) {
char **tmp;
allow_up->max_interfaces *= 2;
allow_up->max_interfaces++;
tmp = realloc(allow_up->interfaces,
sizeof(*tmp) * allow_up->max_interfaces);
if (tmp == NULL) {
#line 2008 "ifupdown.nw"
perror(filename);
return NULL;
#line 1992 "ifupdown.nw"
}
allow_up->interfaces = tmp;
}
allow_up->interfaces[allow_up->n_interfaces] = strdup(iface_name);
allow_up->n_interfaces++;
#line 1967 "ifupdown.nw"
return allow_up;
}
|