1 /*- 2 * Copyright (c) 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley 6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension 7 * Support code is derived from software contributed to Berkeley 8 * by Atsushi Murai (amurai@spec.co.jp). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)cd9660_rrip.c 8.6 (Berkeley) 12/5/94 35 */ 36 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/bio.h> 43 #include <sys/buf.h> 44 #include <sys/vnode.h> 45 #include <sys/mount.h> 46 #include <sys/kernel.h> 47 #include <sys/vimage.h> 48 49 #include <fs/cd9660/iso.h> 50 #include <fs/cd9660/cd9660_node.h> 51 #include <fs/cd9660/cd9660_rrip.h> 52 #include <fs/cd9660/iso_rrip.h> 53 54 typedef int rrt_func_t(void *, ISO_RRIP_ANALYZE *ana); 55 56 typedef struct { 57 char type[2]; 58 rrt_func_t *func; 59 void (*func2)(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana); 60 int result; 61 } RRIP_TABLE; 62 63 static int cd9660_rrip_altname(ISO_RRIP_ALTNAME *p, ISO_RRIP_ANALYZE *ana); 64 static int cd9660_rrip_attr(ISO_RRIP_ATTR *p, ISO_RRIP_ANALYZE *ana); 65 static int cd9660_rrip_cont(ISO_RRIP_CONT *p, ISO_RRIP_ANALYZE *ana); 66 static void cd9660_rrip_defattr(struct iso_directory_record *isodir, 67 ISO_RRIP_ANALYZE *ana); 68 static void cd9660_rrip_defname(struct iso_directory_record *isodir, 69 ISO_RRIP_ANALYZE *ana); 70 static void cd9660_rrip_deftstamp(struct iso_directory_record *isodir, 71 ISO_RRIP_ANALYZE *ana); 72 static int cd9660_rrip_device(ISO_RRIP_DEVICE *p, ISO_RRIP_ANALYZE *ana); 73 static int cd9660_rrip_extref(ISO_RRIP_EXTREF *p, ISO_RRIP_ANALYZE *ana); 74 static int cd9660_rrip_idflag(ISO_RRIP_IDFLAG *p, ISO_RRIP_ANALYZE *ana); 75 static int cd9660_rrip_loop(struct iso_directory_record *isodir, 76 ISO_RRIP_ANALYZE *ana, RRIP_TABLE *table); 77 static int cd9660_rrip_pclink(ISO_RRIP_CLINK *p, ISO_RRIP_ANALYZE *ana); 78 static int cd9660_rrip_reldir(ISO_RRIP_RELDIR *p, ISO_RRIP_ANALYZE *ana); 79 static int cd9660_rrip_slink(ISO_RRIP_SLINK *p, ISO_RRIP_ANALYZE *ana); 80 static int cd9660_rrip_stop(ISO_SUSP_HEADER *p, ISO_RRIP_ANALYZE *ana); 81 static int cd9660_rrip_tstamp(ISO_RRIP_TSTAMP *p, ISO_RRIP_ANALYZE *ana); 82 83 /* 84 * POSIX file attribute 85 */ 86 static int 87 cd9660_rrip_attr(p,ana) 88 ISO_RRIP_ATTR *p; 89 ISO_RRIP_ANALYZE *ana; 90 { 91 ana->inop->inode.iso_mode = isonum_733(p->mode); 92 ana->inop->inode.iso_uid = isonum_733(p->uid); 93 ana->inop->inode.iso_gid = isonum_733(p->gid); 94 ana->inop->inode.iso_links = isonum_733(p->links); 95 ana->fields &= ~ISO_SUSP_ATTR; 96 return ISO_SUSP_ATTR; 97 } 98 99 static void 100 cd9660_rrip_defattr(isodir,ana) 101 struct iso_directory_record *isodir; 102 ISO_RRIP_ANALYZE *ana; 103 { 104 /* But this is a required field! */ 105 printf("RRIP without PX field?\n"); 106 cd9660_defattr(isodir,ana->inop,NULL,ISO_FTYPE_RRIP); 107 } 108 109 /* 110 * Symbolic Links 111 */ 112 static int 113 cd9660_rrip_slink(p,ana) 114 ISO_RRIP_SLINK *p; 115 ISO_RRIP_ANALYZE *ana; 116 { 117 INIT_VPROCG(TD_TO_VPROCG(curthread)); 118 ISO_RRIP_SLINK_COMPONENT *pcomp; 119 ISO_RRIP_SLINK_COMPONENT *pcompe; 120 int len, wlen, cont; 121 char *outbuf, *inbuf; 122 123 pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component; 124 pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length)); 125 len = *ana->outlen; 126 outbuf = ana->outbuf; 127 cont = ana->cont; 128 129 /* 130 * Gathering a Symbolic name from each component with path 131 */ 132 for (; 133 pcomp < pcompe; 134 pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ 135 + isonum_711(pcomp->clen))) { 136 137 if (!cont) { 138 if (len < ana->maxlen) { 139 len++; 140 *outbuf++ = '/'; 141 } 142 } 143 cont = 0; 144 145 inbuf = ".."; 146 wlen = 0; 147 148 switch (*pcomp->cflag) { 149 150 case ISO_SUSP_CFLAG_CURRENT: 151 /* Inserting Current */ 152 wlen = 1; 153 break; 154 155 case ISO_SUSP_CFLAG_PARENT: 156 /* Inserting Parent */ 157 wlen = 2; 158 break; 159 160 case ISO_SUSP_CFLAG_ROOT: 161 /* Inserting slash for ROOT */ 162 /* Double slash, nothing really to do here. */ 163 break; 164 165 case ISO_SUSP_CFLAG_VOLROOT: 166 /* Inserting a mount point i.e. "/cdrom" */ 167 /* same as above */ 168 outbuf -= len; 169 len = 0; 170 inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname; 171 wlen = strlen(inbuf); 172 break; 173 174 case ISO_SUSP_CFLAG_HOST: 175 /* XXXRW: locking. */ 176 /* Inserting hostname i.e. "kurt.tools.de" */ 177 inbuf = V_hostname; 178 wlen = strlen(V_hostname); 179 break; 180 181 case ISO_SUSP_CFLAG_CONTINUE: 182 cont = 1; 183 /* FALLTHROUGH */ 184 case 0: 185 /* Inserting component */ 186 wlen = isonum_711(pcomp->clen); 187 inbuf = pcomp->name; 188 break; 189 default: 190 printf("RRIP with incorrect flags?"); 191 wlen = ana->maxlen + 1; 192 break; 193 } 194 195 if (len + wlen > ana->maxlen) { 196 /* indicate error to caller */ 197 ana->cont = 1; 198 ana->fields = 0; 199 ana->outbuf -= *ana->outlen; 200 *ana->outlen = 0; 201 return 0; 202 } 203 204 bcopy(inbuf,outbuf,wlen); 205 outbuf += wlen; 206 len += wlen; 207 208 } 209 ana->outbuf = outbuf; 210 *ana->outlen = len; 211 ana->cont = cont; 212 213 if (!isonum_711(p->flags)) { 214 ana->fields &= ~ISO_SUSP_SLINK; 215 return ISO_SUSP_SLINK; 216 } 217 return 0; 218 } 219 220 /* 221 * Alternate name 222 */ 223 static int 224 cd9660_rrip_altname(p,ana) 225 ISO_RRIP_ALTNAME *p; 226 ISO_RRIP_ANALYZE *ana; 227 { 228 INIT_VPROCG(TD_TO_VPROCG(curthread)); 229 char *inbuf; 230 int wlen; 231 int cont; 232 233 inbuf = ".."; 234 wlen = 0; 235 cont = 0; 236 237 switch (*p->flags) { 238 case ISO_SUSP_CFLAG_CURRENT: 239 /* Inserting Current */ 240 wlen = 1; 241 break; 242 243 case ISO_SUSP_CFLAG_PARENT: 244 /* Inserting Parent */ 245 wlen = 2; 246 break; 247 248 case ISO_SUSP_CFLAG_HOST: 249 /* XXXRW: locking. */ 250 /* Inserting hostname i.e. "kurt.tools.de" */ 251 inbuf = V_hostname; 252 wlen = strlen(V_hostname); 253 break; 254 255 case ISO_SUSP_CFLAG_CONTINUE: 256 cont = 1; 257 /* FALLTHROUGH */ 258 case 0: 259 /* Inserting component */ 260 wlen = isonum_711(p->h.length) - 5; 261 inbuf = (char *)p + 5; 262 break; 263 264 default: 265 printf("RRIP with incorrect NM flags?\n"); 266 wlen = ana->maxlen + 1; 267 break; 268 } 269 270 if ((*ana->outlen += wlen) > ana->maxlen) { 271 /* treat as no name field */ 272 ana->fields &= ~ISO_SUSP_ALTNAME; 273 ana->outbuf -= *ana->outlen - wlen; 274 *ana->outlen = 0; 275 return 0; 276 } 277 278 bcopy(inbuf,ana->outbuf,wlen); 279 ana->outbuf += wlen; 280 281 if (!cont) { 282 ana->fields &= ~ISO_SUSP_ALTNAME; 283 return ISO_SUSP_ALTNAME; 284 } 285 return 0; 286 } 287 288 static void 289 cd9660_rrip_defname(isodir,ana) 290 struct iso_directory_record *isodir; 291 ISO_RRIP_ANALYZE *ana; 292 { 293 isofntrans(isodir->name,isonum_711(isodir->name_len), 294 ana->outbuf,ana->outlen, 295 1,isonum_711(isodir->flags)&4, ana->imp->joliet_level, 296 ana->imp->im_flags, ana->imp->im_d2l); 297 switch (*ana->outbuf) { 298 default: 299 break; 300 case 1: 301 *ana->outlen = 2; 302 /* FALLTHROUGH */ 303 case 0: 304 /* outlen is 1 already */ 305 strcpy(ana->outbuf,".."); 306 break; 307 } 308 } 309 310 /* 311 * Parent or Child Link 312 */ 313 static int 314 cd9660_rrip_pclink(p,ana) 315 ISO_RRIP_CLINK *p; 316 ISO_RRIP_ANALYZE *ana; 317 { 318 *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift; 319 ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK); 320 return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK; 321 } 322 323 /* 324 * Relocated directory 325 */ 326 static int 327 cd9660_rrip_reldir(p,ana) 328 ISO_RRIP_RELDIR *p; 329 ISO_RRIP_ANALYZE *ana; 330 { 331 /* special hack to make caller aware of RE field */ 332 *ana->outlen = 0; 333 ana->fields = 0; 334 return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK; 335 } 336 337 static int 338 cd9660_rrip_tstamp(p,ana) 339 ISO_RRIP_TSTAMP *p; 340 ISO_RRIP_ANALYZE *ana; 341 { 342 u_char *ptime; 343 344 ptime = p->time; 345 346 /* Check a format of time stamp (7bytes/17bytes) */ 347 if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) { 348 if (*p->flags&ISO_SUSP_TSTAMP_CREAT) 349 ptime += 7; 350 351 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { 352 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime, 353 ISO_FTYPE_RRIP); 354 ptime += 7; 355 } else 356 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec)); 357 358 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { 359 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime, 360 ISO_FTYPE_RRIP); 361 ptime += 7; 362 } else 363 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; 364 365 if (*p->flags&ISO_SUSP_TSTAMP_ATTR) 366 cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime, 367 ISO_FTYPE_RRIP); 368 else 369 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; 370 371 } else { 372 if (*p->flags&ISO_SUSP_TSTAMP_CREAT) 373 ptime += 17; 374 375 if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { 376 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime); 377 ptime += 17; 378 } else 379 bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec)); 380 381 if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { 382 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime); 383 ptime += 17; 384 } else 385 ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; 386 387 if (*p->flags&ISO_SUSP_TSTAMP_ATTR) 388 cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime); 389 else 390 ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; 391 392 } 393 ana->fields &= ~ISO_SUSP_TSTAMP; 394 return ISO_SUSP_TSTAMP; 395 } 396 397 static void 398 cd9660_rrip_deftstamp(isodir,ana) 399 struct iso_directory_record *isodir; 400 ISO_RRIP_ANALYZE *ana; 401 { 402 cd9660_deftstamp(isodir,ana->inop,NULL,ISO_FTYPE_RRIP); 403 } 404 405 /* 406 * POSIX device modes 407 */ 408 static int 409 cd9660_rrip_device(p,ana) 410 ISO_RRIP_DEVICE *p; 411 ISO_RRIP_ANALYZE *ana; 412 { 413 u_int high, low; 414 415 high = isonum_733(p->dev_t_high); 416 low = isonum_733(p->dev_t_low); 417 418 if (high == 0) 419 ana->inop->inode.iso_rdev = makedev(major(low), minor(low)); 420 else 421 ana->inop->inode.iso_rdev = makedev(high, minor(low)); 422 ana->fields &= ~ISO_SUSP_DEVICE; 423 return ISO_SUSP_DEVICE; 424 } 425 426 /* 427 * Flag indicating 428 */ 429 static int 430 cd9660_rrip_idflag(p,ana) 431 ISO_RRIP_IDFLAG *p; 432 ISO_RRIP_ANALYZE *ana; 433 { 434 ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */ 435 /* special handling of RE field */ 436 if (ana->fields&ISO_SUSP_RELDIR) 437 return cd9660_rrip_reldir(/* XXX */ (ISO_RRIP_RELDIR *)p,ana); 438 439 return ISO_SUSP_IDFLAG; 440 } 441 442 /* 443 * Continuation pointer 444 */ 445 static int 446 cd9660_rrip_cont(p,ana) 447 ISO_RRIP_CONT *p; 448 ISO_RRIP_ANALYZE *ana; 449 { 450 ana->iso_ce_blk = isonum_733(p->location); 451 ana->iso_ce_off = isonum_733(p->offset); 452 ana->iso_ce_len = isonum_733(p->length); 453 return ISO_SUSP_CONT; 454 } 455 456 /* 457 * System Use end 458 */ 459 static int 460 cd9660_rrip_stop(p,ana) 461 ISO_SUSP_HEADER *p; 462 ISO_RRIP_ANALYZE *ana; 463 { 464 return ISO_SUSP_STOP; 465 } 466 467 /* 468 * Extension reference 469 */ 470 static int 471 cd9660_rrip_extref(p,ana) 472 ISO_RRIP_EXTREF *p; 473 ISO_RRIP_ANALYZE *ana; 474 { 475 if ( ! ((isonum_711(p->len_id) == 10 476 && bcmp((char *)p + 8,"RRIP_1991A",10) == 0) 477 || (isonum_711(p->len_id) == 10 478 && bcmp((char *)p + 8,"IEEE_P1282",10) == 0) 479 || (isonum_711(p->len_id) == 9 480 && bcmp((char *)p + 8,"IEEE_1282", 9) == 0)) 481 || isonum_711(p->version) != 1) 482 return 0; 483 ana->fields &= ~ISO_SUSP_EXTREF; 484 return ISO_SUSP_EXTREF; 485 } 486 487 static int 488 cd9660_rrip_loop(isodir,ana,table) 489 struct iso_directory_record *isodir; 490 ISO_RRIP_ANALYZE *ana; 491 RRIP_TABLE *table; 492 { 493 RRIP_TABLE *ptable; 494 ISO_SUSP_HEADER *phead; 495 ISO_SUSP_HEADER *pend; 496 struct buf *bp = NULL; 497 char *pwhead; 498 u_short c; 499 int result; 500 501 /* 502 * Note: If name length is odd, 503 * it will be padding 1 byte after the name 504 */ 505 pwhead = isodir->name + isonum_711(isodir->name_len); 506 if (!(isonum_711(isodir->name_len)&1)) 507 pwhead++; 508 isochar(isodir->name, pwhead, ana->imp->joliet_level, &c, NULL, 509 ana->imp->im_flags, ana->imp->im_d2l); 510 511 /* If it's not the '.' entry of the root dir obey SP field */ 512 if (c != 0 || isonum_733(isodir->extent) != ana->imp->root_extent) 513 pwhead += ana->imp->rr_skip; 514 else 515 pwhead += ana->imp->rr_skip0; 516 517 phead = (ISO_SUSP_HEADER *)pwhead; 518 pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length)); 519 520 result = 0; 521 while (1) { 522 ana->iso_ce_len = 0; 523 /* 524 * Note: "pend" should be more than one SUSP header 525 */ 526 while (pend >= phead + 1) { 527 if (isonum_711(phead->version) == 1) { 528 for (ptable = table; ptable->func; ptable++) { 529 if (*phead->type == *ptable->type 530 && phead->type[1] == ptable->type[1]) { 531 result |= ptable->func(phead,ana); 532 break; 533 } 534 } 535 if (!ana->fields) 536 break; 537 } 538 if (result&ISO_SUSP_STOP) { 539 result &= ~ISO_SUSP_STOP; 540 break; 541 } 542 /* plausibility check */ 543 if (isonum_711(phead->length) < sizeof(*phead)) 544 break; 545 /* 546 * move to next SUSP 547 * Hopefully this works with newer versions, too 548 */ 549 phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length)); 550 } 551 552 if (ana->fields && ana->iso_ce_len) { 553 if (ana->iso_ce_blk >= ana->imp->volume_space_size 554 || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size 555 || bread(ana->imp->im_devvp, 556 ana->iso_ce_blk << 557 (ana->imp->im_bshift - DEV_BSHIFT), 558 ana->imp->logical_block_size, NOCRED, &bp)) 559 /* what to do now? */ 560 break; 561 phead = (ISO_SUSP_HEADER *)(bp->b_data + ana->iso_ce_off); 562 pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len); 563 } else 564 break; 565 } 566 if (bp) 567 brelse(bp); 568 /* 569 * If we don't find the Basic SUSP stuffs, just set default value 570 * (attribute/time stamp) 571 */ 572 for (ptable = table; ptable->func2; ptable++) 573 if (!(ptable->result&result)) 574 ptable->func2(isodir,ana); 575 576 return result; 577 } 578 579 /* 580 * Get Attributes. 581 */ 582 /* 583 * XXX the casts are bogus but will do for now. 584 */ 585 #define BC (rrt_func_t *) 586 static RRIP_TABLE rrip_table_analyze[] = { 587 { "PX", BC cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR }, 588 { "TF", BC cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP }, 589 { "PN", BC cd9660_rrip_device, 0, ISO_SUSP_DEVICE }, 590 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 591 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 592 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 593 { "", 0, 0, 0 } 594 }; 595 596 int 597 cd9660_rrip_analyze(isodir,inop,imp) 598 struct iso_directory_record *isodir; 599 struct iso_node *inop; 600 struct iso_mnt *imp; 601 { 602 ISO_RRIP_ANALYZE analyze; 603 604 analyze.inop = inop; 605 analyze.imp = imp; 606 analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE; 607 608 return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze); 609 } 610 611 /* 612 * Get Alternate Name. 613 */ 614 static RRIP_TABLE rrip_table_getname[] = { 615 { "NM", BC cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME }, 616 { "CL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, 617 { "PL", BC cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, 618 { "RE", BC cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR }, 619 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 620 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 621 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 622 { "", 0, 0, 0 } 623 }; 624 625 int 626 cd9660_rrip_getname(isodir,outbuf,outlen,inump,imp) 627 struct iso_directory_record *isodir; 628 char *outbuf; 629 u_short *outlen; 630 ino_t *inump; 631 struct iso_mnt *imp; 632 { 633 ISO_RRIP_ANALYZE analyze; 634 RRIP_TABLE *tab; 635 u_short c; 636 637 analyze.outbuf = outbuf; 638 analyze.outlen = outlen; 639 analyze.maxlen = NAME_MAX; 640 analyze.inump = inump; 641 analyze.imp = imp; 642 analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK; 643 *outlen = 0; 644 645 isochar(isodir->name, isodir->name + isonum_711(isodir->name_len), 646 imp->joliet_level, &c, NULL, imp->im_flags, imp->im_d2l); 647 tab = rrip_table_getname; 648 if (c == 0 || c == 1) { 649 cd9660_rrip_defname(isodir,&analyze); 650 651 analyze.fields &= ~ISO_SUSP_ALTNAME; 652 tab++; 653 } 654 655 return cd9660_rrip_loop(isodir,&analyze,tab); 656 } 657 658 /* 659 * Get Symbolic Link. 660 */ 661 static RRIP_TABLE rrip_table_getsymname[] = { 662 { "SL", BC cd9660_rrip_slink, 0, ISO_SUSP_SLINK }, 663 { "RR", BC cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 664 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 665 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 666 { "", 0, 0, 0 } 667 }; 668 669 int 670 cd9660_rrip_getsymname(isodir,outbuf,outlen,imp) 671 struct iso_directory_record *isodir; 672 char *outbuf; 673 u_short *outlen; 674 struct iso_mnt *imp; 675 { 676 ISO_RRIP_ANALYZE analyze; 677 678 analyze.outbuf = outbuf; 679 analyze.outlen = outlen; 680 *outlen = 0; 681 analyze.maxlen = MAXPATHLEN; 682 analyze.cont = 1; /* don't start with a slash */ 683 analyze.imp = imp; 684 analyze.fields = ISO_SUSP_SLINK; 685 686 return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK); 687 } 688 689 static RRIP_TABLE rrip_table_extref[] = { 690 { "ER", BC cd9660_rrip_extref, 0, ISO_SUSP_EXTREF }, 691 { "CE", BC cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 692 { "ST", BC cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 693 { "", 0, 0, 0 } 694 }; 695 696 /* 697 * Check for Rock Ridge Extension and return offset of its fields. 698 * Note: We insist on the ER field. 699 */ 700 int 701 cd9660_rrip_offset(isodir,imp) 702 struct iso_directory_record *isodir; 703 struct iso_mnt *imp; 704 { 705 ISO_RRIP_OFFSET *p; 706 ISO_RRIP_ANALYZE analyze; 707 708 imp->rr_skip0 = 0; 709 p = (ISO_RRIP_OFFSET *)(isodir->name + 1); 710 if (bcmp(p,"SP\7\1\276\357",6)) { 711 /* Maybe, it's a CDROM XA disc? */ 712 imp->rr_skip0 = 15; 713 p = (ISO_RRIP_OFFSET *)((char *)p + 15); 714 if (bcmp(p,"SP\7\1\276\357",6)) 715 return -1; 716 } 717 718 analyze.imp = imp; 719 analyze.fields = ISO_SUSP_EXTREF; 720 if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF)) 721 return -1; 722 723 return isonum_711(p->skip); 724 } 725