| 1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| 3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ |
| 5 | * |
| 6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| 9 | * compliance with the License. Please obtain a copy of the License at |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this |
| 11 | * file. |
| 12 | * |
| 13 | * The Original Code and all software distributed under the License are |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and |
| 19 | * limitations under the License. |
| 20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ |
| 22 | */ |
| 23 | /* $NetBSD: cd9660_rrip.c,v 1.11 1994/12/24 15:30:10 cgd Exp $ */ |
| 24 | |
| 25 | /*- |
| 26 | * Copyright (c) 1993, 1994 |
| 27 | * The Regents of the University of California. All rights reserved. |
| 28 | * |
| 29 | * This code is derived from software contributed to Berkeley |
| 30 | * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension |
| 31 | * Support code is derived from software contributed to Berkeley |
| 32 | * by Atsushi Murai (amurai@spec.co.jp). |
| 33 | * |
| 34 | * Redistribution and use in source and binary forms, with or without |
| 35 | * modification, are permitted provided that the following conditions |
| 36 | * are met: |
| 37 | * 1. Redistributions of source code must retain the above copyright |
| 38 | * notice, this list of conditions and the following disclaimer. |
| 39 | * 2. Redistributions in binary form must reproduce the above copyright |
| 40 | * notice, this list of conditions and the following disclaimer in the |
| 41 | * documentation and/or other materials provided with the distribution. |
| 42 | * 3. All advertising materials mentioning features or use of this software |
| 43 | * must display the following acknowledgement: |
| 44 | * This product includes software developed by the University of |
| 45 | * California, Berkeley and its contributors. |
| 46 | * 4. Neither the name of the University nor the names of its contributors |
| 47 | * may be used to endorse or promote products derived from this software |
| 48 | * without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 51 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 53 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 54 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 55 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 56 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 57 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 58 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 59 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 60 | * SUCH DAMAGE. |
| 61 | * |
| 62 | * @(#)cd9660_rrip.c 8.6 (Berkeley) 12/5/94 |
| 63 | |
| 64 | |
| 65 | |
| 66 | * HISTORY |
| 67 | * 22-Jan-98 radar 1669467 - ISO 9660 CD support - jwc |
| 68 | |
| 69 | */ |
| 70 | |
| 71 | #include <sys/param.h> |
| 72 | #include <sys/systm.h> |
| 73 | #include <sys/vnode.h> |
| 74 | #include <sys/mount.h> |
| 75 | #include <sys/namei.h> |
| 76 | #include <sys/buf.h> |
| 77 | #include <sys/file.h> |
| 78 | #include <sys/kernel.h> |
| 79 | #include <sys/stat.h> |
| 80 | #include <sys/types.h> |
| 81 | |
| 82 | #include <sys/time.h> |
| 83 | |
| 84 | #include <isofs/cd9660/iso.h> |
| 85 | #include <isofs/cd9660/cd9660_node.h> |
| 86 | #include <isofs/cd9660/cd9660_rrip.h> |
| 87 | #include <isofs/cd9660/iso_rrip.h> |
| 88 | |
| 89 | /* |
| 90 | * POSIX file attribute |
| 91 | */ |
| 92 | static int |
| 93 | cd9660_rrip_attr(ISO_RRIP_ATTR *p, ISO_RRIP_ANALYZE *ana) |
| 94 | { |
| 95 | ana->inop->inode.iso_mode = isonum_733(p->mode); |
| 96 | ana->inop->inode.iso_uid = isonum_733(p->uid); |
| 97 | ana->inop->inode.iso_gid = isonum_733(p->gid); |
| 98 | ana->inop->inode.iso_links = isonum_733(p->links); |
| 99 | ana->fields &= ~ISO_SUSP_ATTR; |
| 100 | return ISO_SUSP_ATTR; |
| 101 | } |
| 102 | |
| 103 | static void |
| 104 | cd9660_rrip_defattr(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana) |
| 105 | { |
| 106 | /* But this is a required field! */ |
| 107 | printf("RRIP without PX field?\n"); |
| 108 | cd9660_defattr(isodir,ana->inop,NULL); |
| 109 | } |
| 110 | |
| 111 | /* |
| 112 | * Symbolic Links |
| 113 | */ |
| 114 | static int |
| 115 | cd9660_rrip_slink(ISO_RRIP_SLINK *p, ISO_RRIP_ANALYZE *ana) |
| 116 | { |
| 117 | register ISO_RRIP_SLINK_COMPONENT *pcomp; |
| 118 | register ISO_RRIP_SLINK_COMPONENT *pcompe; |
| 119 | int len, wlen, cont; |
| 120 | char *outbuf, *inbuf; |
| 121 | |
| 122 | pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component; |
| 123 | pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length)); |
| 124 | len = *ana->outlen; |
| 125 | outbuf = ana->outbuf; |
| 126 | cont = ana->cont; |
| 127 | |
| 128 | /* |
| 129 | * Gathering a Symbolic name from each component with path |
| 130 | */ |
| 131 | for (; |
| 132 | pcomp < pcompe; |
| 133 | pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ |
| 134 | + isonum_711(pcomp->clen))) { |
| 135 | |
| 136 | if (!cont) { |
| 137 | if (len < ana->maxlen) { |
| 138 | len++; |
| 139 | *outbuf++ = '/'; |
| 140 | } |
| 141 | } |
| 142 | cont = 0; |
| 143 | |
| 144 | inbuf = ".."; |
| 145 | wlen = 0; |
| 146 | |
| 147 | switch (*pcomp->cflag) { |
| 148 | |
| 149 | case ISO_SUSP_CFLAG_CURRENT: |
| 150 | /* Inserting Current */ |
| 151 | wlen = 1; |
| 152 | break; |
| 153 | |
| 154 | case ISO_SUSP_CFLAG_PARENT: |
| 155 | /* Inserting Parent */ |
| 156 | wlen = 2; |
| 157 | break; |
| 158 | |
| 159 | case ISO_SUSP_CFLAG_ROOT: |
| 160 | /* Inserting slash for ROOT */ |
| 161 | /* start over from beginning(?) */ |
| 162 | outbuf -= len; |
| 163 | len = 0; |
| 164 | break; |
| 165 | |
| 166 | case ISO_SUSP_CFLAG_VOLROOT: |
| 167 | /* Inserting a mount point i.e. "/cdrom" */ |
| 168 | /* same as above */ |
| 169 | outbuf -= len; |
| 170 | len = 0; |
| 171 | inbuf = &(vfs_statfs(ana->imp->im_mountp)->f_mntonname); |
| 172 | wlen = strlen(inbuf); |
| 173 | break; |
| 174 | |
| 175 | case ISO_SUSP_CFLAG_HOST: |
| 176 | /* Inserting hostname i.e. "kurt.tools.de" */ |
| 177 | inbuf = hostname; |
| 178 | wlen = hostnamelen; |
| 179 | break; |
| 180 | |
| 181 | case ISO_SUSP_CFLAG_CONTINUE: |
| 182 | cont = 1; |
| 183 | /* fall thru */ |
| 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(ISO_RRIP_ALTNAME *p, ISO_RRIP_ANALYZE *ana) |
| 225 | { |
| 226 | char *inbuf; |
| 227 | int wlen; |
| 228 | int cont; |
| 229 | |
| 230 | inbuf = ".."; |
| 231 | wlen = 0; |
| 232 | cont = 0; |
| 233 | |
| 234 | switch (*p->flags) { |
| 235 | case ISO_SUSP_CFLAG_CURRENT: |
| 236 | /* Inserting Current */ |
| 237 | wlen = 1; |
| 238 | break; |
| 239 | |
| 240 | case ISO_SUSP_CFLAG_PARENT: |
| 241 | /* Inserting Parent */ |
| 242 | wlen = 2; |
| 243 | break; |
| 244 | |
| 245 | case ISO_SUSP_CFLAG_HOST: |
| 246 | /* Inserting hostname i.e. "kurt.tools.de" */ |
| 247 | inbuf = hostname; |
| 248 | wlen = hostnamelen; |
| 249 | break; |
| 250 | |
| 251 | case ISO_SUSP_CFLAG_CONTINUE: |
| 252 | cont = 1; |
| 253 | /* fall thru */ |
| 254 | case 0: |
| 255 | /* Inserting component */ |
| 256 | wlen = isonum_711(p->h.length) - 5; |
| 257 | inbuf = (char *)p + 5; |
| 258 | break; |
| 259 | |
| 260 | default: |
| 261 | printf("RRIP with incorrect NM flags?\n"); |
| 262 | wlen = ana->maxlen + 1; |
| 263 | break; |
| 264 | } |
| 265 | |
| 266 | if ((*ana->outlen += wlen) > ana->maxlen) { |
| 267 | /* treat as no name field */ |
| 268 | ana->fields &= ~ISO_SUSP_ALTNAME; |
| 269 | ana->outbuf -= *ana->outlen - wlen; |
| 270 | *ana->outlen = 0; |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | bcopy(inbuf,ana->outbuf,wlen); |
| 275 | ana->outbuf += wlen; |
| 276 | |
| 277 | if (!cont) { |
| 278 | ana->fields &= ~ISO_SUSP_ALTNAME; |
| 279 | return ISO_SUSP_ALTNAME; |
| 280 | } |
| 281 | return 0; |
| 282 | } |
| 283 | |
| 284 | static void |
| 285 | cd9660_rrip_defname(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana) |
| 286 | { |
| 287 | strcpy(ana->outbuf,".."); |
| 288 | switch (*isodir->name) { |
| 289 | default: |
| 290 | isofntrans(isodir->name, isonum_711(isodir->name_len), |
| 291 | ana->outbuf, ana->outlen, 1, |
| 292 | isonum_711(isodir->flags) & associatedBit); |
| 293 | break; |
| 294 | case 0: |
| 295 | *ana->outlen = 1; |
| 296 | break; |
| 297 | case 1: |
| 298 | *ana->outlen = 2; |
| 299 | break; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | /* |
| 304 | * Parent or Child Link |
| 305 | */ |
| 306 | static int |
| 307 | cd9660_rrip_pclink(ISO_RRIP_CLINK *p, ISO_RRIP_ANALYZE *ana) |
| 308 | { |
| 309 | *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift; |
| 310 | ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK); |
| 311 | return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK; |
| 312 | } |
| 313 | |
| 314 | /* |
| 315 | * Relocated directory |
| 316 | */ |
| 317 | /* ARGSUSED */ |
| 318 | static int |
| 319 | cd9660_rrip_reldir(__unused ISO_RRIP_RELDIR *p, ISO_RRIP_ANALYZE *ana) |
| 320 | { |
| 321 | /* special hack to make caller aware of RE field */ |
| 322 | *ana->outlen = 0; |
| 323 | ana->fields = 0; |
| 324 | return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK; |
| 325 | } |
| 326 | |
| 327 | static int |
| 328 | cd9660_rrip_tstamp(ISO_RRIP_TSTAMP *p, ISO_RRIP_ANALYZE *ana) |
| 329 | { |
| 330 | u_char *ptime; |
| 331 | |
| 332 | ptime = p->time; |
| 333 | |
| 334 | /* Check a format of time stamp (7bytes/17bytes) */ |
| 335 | if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) { |
| 336 | if (*p->flags&ISO_SUSP_TSTAMP_CREAT) |
| 337 | ptime += 7; |
| 338 | |
| 339 | if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { |
| 340 | cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime); |
| 341 | ptime += 7; |
| 342 | } else |
| 343 | bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec)); |
| 344 | |
| 345 | if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { |
| 346 | cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime); |
| 347 | ptime += 7; |
| 348 | } else |
| 349 | ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; |
| 350 | |
| 351 | if (*p->flags&ISO_SUSP_TSTAMP_ATTR) |
| 352 | cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime); |
| 353 | else |
| 354 | ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; |
| 355 | |
| 356 | } else { |
| 357 | if (*p->flags&ISO_SUSP_TSTAMP_CREAT) |
| 358 | ptime += 17; |
| 359 | |
| 360 | if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { |
| 361 | cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime); |
| 362 | ptime += 17; |
| 363 | } else |
| 364 | bzero(&ana->inop->inode.iso_mtime,sizeof(struct timespec)); |
| 365 | |
| 366 | if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { |
| 367 | cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime); |
| 368 | ptime += 17; |
| 369 | } else |
| 370 | ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; |
| 371 | |
| 372 | if (*p->flags&ISO_SUSP_TSTAMP_ATTR) |
| 373 | cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime); |
| 374 | else |
| 375 | ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; |
| 376 | |
| 377 | } |
| 378 | ana->fields &= ~ISO_SUSP_TSTAMP; |
| 379 | return ISO_SUSP_TSTAMP; |
| 380 | } |
| 381 | |
| 382 | static void |
| 383 | cd9660_rrip_deftstamp(struct iso_directory_record *isodir, |
| 384 | ISO_RRIP_ANALYZE *ana) |
| 385 | { |
| 386 | cd9660_deftstamp(isodir,ana->inop,NULL); |
| 387 | } |
| 388 | |
| 389 | /* |
| 390 | * POSIX device modes |
| 391 | */ |
| 392 | static int |
| 393 | cd9660_rrip_device(ISO_RRIP_DEVICE *p, ISO_RRIP_ANALYZE *ana) |
| 394 | { |
| 395 | u_int high, low; |
| 396 | |
| 397 | high = isonum_733(p->dev_t_high); |
| 398 | low = isonum_733(p->dev_t_low); |
| 399 | |
| 400 | if (high == 0) |
| 401 | ana->inop->inode.iso_rdev = makedev(major(low), minor(low)); |
| 402 | else |
| 403 | ana->inop->inode.iso_rdev = makedev(high, minor(low)); |
| 404 | ana->fields &= ~ISO_SUSP_DEVICE; |
| 405 | return ISO_SUSP_DEVICE; |
| 406 | } |
| 407 | |
| 408 | /* |
| 409 | * Flag indicating |
| 410 | */ |
| 411 | static int |
| 412 | cd9660_rrip_idflag(ISO_RRIP_IDFLAG *p, ISO_RRIP_ANALYZE *ana) |
| 413 | { |
| 414 | ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */ |
| 415 | /* special handling of RE field */ |
| 416 | if (ana->fields&ISO_SUSP_RELDIR) |
| 417 | return cd9660_rrip_reldir(p,ana); |
| 418 | |
| 419 | return ISO_SUSP_IDFLAG; |
| 420 | } |
| 421 | |
| 422 | /* |
| 423 | * Continuation pointer |
| 424 | */ |
| 425 | static int |
| 426 | cd9660_rrip_cont(ISO_RRIP_CONT *p, ISO_RRIP_ANALYZE *ana) |
| 427 | { |
| 428 | ana->iso_ce_blk = isonum_733(p->location); |
| 429 | ana->iso_ce_off = isonum_733(p->offset); |
| 430 | ana->iso_ce_len = isonum_733(p->length); |
| 431 | return ISO_SUSP_CONT; |
| 432 | } |
| 433 | |
| 434 | /* |
| 435 | * System Use end |
| 436 | */ |
| 437 | /* ARGSUSED */ |
| 438 | static int |
| 439 | cd9660_rrip_stop(__unused ISO_SUSP_HEADER *p, __unused ISO_RRIP_ANALYZE *ana) |
| 440 | { |
| 441 | return ISO_SUSP_STOP; |
| 442 | } |
| 443 | |
| 444 | /* |
| 445 | * Extension reference |
| 446 | */ |
| 447 | static int |
| 448 | cd9660_rrip_extref(ISO_RRIP_EXTREF *p, ISO_RRIP_ANALYZE *ana) |
| 449 | { |
| 450 | if (isonum_711(p->len_id) != 10 |
| 451 | || bcmp((char *)p + 8,"RRIP_1991A",10) |
| 452 | || isonum_711(p->version) != 1) |
| 453 | return 0; |
| 454 | ana->fields &= ~ISO_SUSP_EXTREF; |
| 455 | return ISO_SUSP_EXTREF; |
| 456 | } |
| 457 | |
| 458 | typedef int (*rrip_table_func)(ISO_SUSP_HEADER *phead, ISO_RRIP_ANALYZE *ana); |
| 459 | typedef int (*rrip_table_func2)(struct iso_directory_record *isodir, |
| 460 | ISO_RRIP_ANALYZE *ana); |
| 461 | typedef struct { |
| 462 | char type[2]; |
| 463 | rrip_table_func func; |
| 464 | rrip_table_func2 func2; |
| 465 | int result; |
| 466 | } RRIP_TABLE; |
| 467 | |
| 468 | static int |
| 469 | cd9660_rrip_loop(struct iso_directory_record *isodir, ISO_RRIP_ANALYZE *ana, |
| 470 | RRIP_TABLE *table) |
| 471 | { |
| 472 | register RRIP_TABLE *ptable; |
| 473 | register ISO_SUSP_HEADER *phead; |
| 474 | register ISO_SUSP_HEADER *pend; |
| 475 | struct buf *bp = NULL; |
| 476 | char *pwhead; |
| 477 | int result; |
| 478 | |
| 479 | /* |
| 480 | * Note: If name length is odd, |
| 481 | * it will be padding 1 byte after the name |
| 482 | */ |
| 483 | pwhead = isodir->name + isonum_711(isodir->name_len); |
| 484 | if (!(isonum_711(isodir->name_len)&1)) |
| 485 | pwhead++; |
| 486 | |
| 487 | /* If it's not the '.' entry of the root dir obey SP field */ |
| 488 | if (*isodir->name != 0 |
| 489 | || isonum_733(isodir->extent) != ana->imp->root_extent) |
| 490 | pwhead += ana->imp->rr_skip; |
| 491 | else |
| 492 | pwhead += ana->imp->rr_skip0; |
| 493 | |
| 494 | phead = (ISO_SUSP_HEADER *)pwhead; |
| 495 | pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length)); |
| 496 | |
| 497 | result = 0; |
| 498 | while (1) { |
| 499 | ana->iso_ce_len = 0; |
| 500 | /* |
| 501 | * Note: "pend" should be more than one SUSP header |
| 502 | */ |
| 503 | while (pend >= phead + 1) { |
| 504 | if (isonum_711(phead->version) == 1) { |
| 505 | for (ptable = table; ptable->func; ptable++) { |
| 506 | if (*phead->type == *ptable->type |
| 507 | && phead->type[1] == ptable->type[1]) { |
| 508 | result |= (ptable->func(phead,ana)); |
| 509 | break; |
| 510 | } |
| 511 | } |
| 512 | if (!ana->fields) |
| 513 | break; |
| 514 | } |
| 515 | if (result&ISO_SUSP_STOP) { |
| 516 | result &= ~ISO_SUSP_STOP; |
| 517 | break; |
| 518 | } |
| 519 | /* plausibility check */ |
| 520 | if (isonum_711(phead->length) < sizeof(*phead)) |
| 521 | break; |
| 522 | /* |
| 523 | * move to next SUSP |
| 524 | * Hopefully this works with newer versions, too |
| 525 | */ |
| 526 | phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length)); |
| 527 | } |
| 528 | |
| 529 | if (ana->fields && ana->iso_ce_len) { |
| 530 | if (ana->iso_ce_blk >= ana->imp->volume_space_size |
| 531 | || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size |
| 532 | || buf_bread(ana->imp->im_devvp, |
| 533 | #if 1 // radar 1669467 - logical and physical blocksize are the same |
| 534 | (daddr64_t)((unsigned)ana->iso_ce_blk), |
| 535 | #else |
| 536 | (daddr64_t)((unsigned)(ana->iso_ce_blk << (ana->imp->im_bshift - DEV_BSHIFT))), |
| 537 | #endif // radar 1669467 |
| 538 | ana->imp->logical_block_size, NOCRED, &bp)) |
| 539 | /* what to do now? */ |
| 540 | break; |
| 541 | phead = (ISO_SUSP_HEADER *)((char *)buf_dataptr(bp) + ana->iso_ce_off); |
| 542 | pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len); |
| 543 | } else |
| 544 | break; |
| 545 | } |
| 546 | if (bp) |
| 547 | buf_brelse(bp); |
| 548 | /* |
| 549 | * If we don't find the Basic SUSP stuffs, just set default value |
| 550 | * (attribute/time stamp) |
| 551 | */ |
| 552 | for (ptable = table; ptable->func2; ptable++) |
| 553 | if (!(ptable->result&result)) |
| 554 | ptable->func2(isodir,ana); |
| 555 | |
| 556 | return result; |
| 557 | } |
| 558 | |
| 559 | /* |
| 560 | * Get Attributes. |
| 561 | */ |
| 562 | static RRIP_TABLE rrip_table_analyze[] = { |
| 563 | { "PX", (rrip_table_func)cd9660_rrip_attr, |
| 564 | (rrip_table_func2)cd9660_rrip_defattr, |
| 565 | ISO_SUSP_ATTR }, |
| 566 | { "TF", (rrip_table_func)cd9660_rrip_tstamp, |
| 567 | (rrip_table_func2)cd9660_rrip_deftstamp, |
| 568 | ISO_SUSP_TSTAMP }, |
| 569 | { "PN", (rrip_table_func)cd9660_rrip_device, |
| 570 | 0, ISO_SUSP_DEVICE }, |
| 571 | { "RR", (rrip_table_func)cd9660_rrip_idflag, |
| 572 | 0, ISO_SUSP_IDFLAG }, |
| 573 | { "CE", (rrip_table_func)cd9660_rrip_cont, |
| 574 | 0, ISO_SUSP_CONT }, |
| 575 | { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, |
| 576 | { "", 0, 0, 0 } |
| 577 | }; |
| 578 | |
| 579 | int |
| 580 | cd9660_rrip_analyze(struct iso_directory_record *isodir, struct iso_node *inop, |
| 581 | struct iso_mnt *imp) |
| 582 | { |
| 583 | ISO_RRIP_ANALYZE analyze; |
| 584 | |
| 585 | analyze.inop = inop; |
| 586 | analyze.imp = imp; |
| 587 | analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE; |
| 588 | |
| 589 | return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze); |
| 590 | } |
| 591 | |
| 592 | /* |
| 593 | * Get Alternate Name. |
| 594 | */ |
| 595 | static RRIP_TABLE rrip_table_getname[] = { |
| 596 | { "NM", (rrip_table_func)cd9660_rrip_altname, |
| 597 | (rrip_table_func2)cd9660_rrip_defname, |
| 598 | ISO_SUSP_ALTNAME }, |
| 599 | { "CL", (rrip_table_func)cd9660_rrip_pclink, |
| 600 | 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, |
| 601 | { "PL", (rrip_table_func)cd9660_rrip_pclink, |
| 602 | 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, |
| 603 | { "RE", (rrip_table_func)cd9660_rrip_reldir, |
| 604 | 0, ISO_SUSP_RELDIR }, |
| 605 | { "RR", (rrip_table_func)cd9660_rrip_idflag, |
| 606 | 0, ISO_SUSP_IDFLAG }, |
| 607 | { "CE", (rrip_table_func)cd9660_rrip_cont, |
| 608 | 0, ISO_SUSP_CONT }, |
| 609 | { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, |
| 610 | { "", 0, 0, 0 } |
| 611 | }; |
| 612 | |
| 613 | int |
| 614 | cd9660_rrip_getname(struct iso_directory_record *isodir, char *outbuf, |
| 615 | u_short *outlen, ino_t *inump, struct iso_mnt *imp) |
| 616 | { |
| 617 | ISO_RRIP_ANALYZE analyze; |
| 618 | RRIP_TABLE *tab; |
| 619 | |
| 620 | analyze.outbuf = outbuf; |
| 621 | analyze.outlen = outlen; |
| 622 | analyze.maxlen = ISO_RRIP_NAMEMAX; |
| 623 | analyze.inump = inump; |
| 624 | analyze.imp = imp; |
| 625 | analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK; |
| 626 | *outlen = 0; |
| 627 | |
| 628 | tab = rrip_table_getname; |
| 629 | if (*isodir->name == 0 |
| 630 | || *isodir->name == 1) { |
| 631 | cd9660_rrip_defname(isodir,&analyze); |
| 632 | |
| 633 | analyze.fields &= ~ISO_SUSP_ALTNAME; |
| 634 | tab++; |
| 635 | } |
| 636 | |
| 637 | return cd9660_rrip_loop(isodir,&analyze,tab); |
| 638 | } |
| 639 | |
| 640 | /* |
| 641 | * Get Symbolic Link. |
| 642 | */ |
| 643 | static RRIP_TABLE rrip_table_getsymname[] = { |
| 644 | { "SL", (rrip_table_func)cd9660_rrip_slink, |
| 645 | 0, ISO_SUSP_SLINK }, |
| 646 | { "RR", (rrip_table_func)cd9660_rrip_idflag, |
| 647 | 0, ISO_SUSP_IDFLAG }, |
| 648 | { "CE", (rrip_table_func)cd9660_rrip_cont, |
| 649 | 0, ISO_SUSP_CONT }, |
| 650 | { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, |
| 651 | { "", 0, 0, 0 } |
| 652 | }; |
| 653 | |
| 654 | int |
| 655 | cd9660_rrip_getsymname(struct iso_directory_record *isodir, char *outbuf, |
| 656 | u_short *outlen, struct iso_mnt *imp) |
| 657 | { |
| 658 | ISO_RRIP_ANALYZE analyze; |
| 659 | |
| 660 | analyze.outbuf = outbuf; |
| 661 | analyze.outlen = outlen; |
| 662 | *outlen = 0; |
| 663 | analyze.maxlen = MAXPATHLEN; |
| 664 | analyze.cont = 1; /* don't start with a slash */ |
| 665 | analyze.imp = imp; |
| 666 | analyze.fields = ISO_SUSP_SLINK; |
| 667 | |
| 668 | return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK); |
| 669 | } |
| 670 | |
| 671 | static RRIP_TABLE rrip_table_extref[] = { |
| 672 | { "ER", (rrip_table_func)cd9660_rrip_extref, |
| 673 | 0, ISO_SUSP_EXTREF }, |
| 674 | { "CE", (rrip_table_func)cd9660_rrip_cont, |
| 675 | 0, ISO_SUSP_CONT }, |
| 676 | { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, |
| 677 | { "", 0, 0, 0 } |
| 678 | }; |
| 679 | |
| 680 | /* |
| 681 | * Check for Rock Ridge Extension and return offset of its fields. |
| 682 | * Note: We insist on the ER field. |
| 683 | */ |
| 684 | int |
| 685 | cd9660_rrip_offset(struct iso_directory_record *isodir, struct iso_mnt *imp) |
| 686 | { |
| 687 | ISO_RRIP_OFFSET *p; |
| 688 | ISO_RRIP_ANALYZE analyze; |
| 689 | |
| 690 | imp->rr_skip0 = 0; |
| 691 | p = (ISO_RRIP_OFFSET *)(isodir->name + 1); |
| 692 | if (bcmp(p,"SP\7\1\276\357",6)) { |
| 693 | /* Maybe, it's a CDROM XA disc? */ |
| 694 | imp->rr_skip0 = 15; |
| 695 | p = (ISO_RRIP_OFFSET *)((char *)p + 15); |
| 696 | if (bcmp(p,"SP\7\1\276\357",6)) |
| 697 | return -1; |
| 698 | } |
| 699 | |
| 700 | analyze.imp = imp; |
| 701 | analyze.fields = ISO_SUSP_EXTREF; |
| 702 | if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF)) |
| 703 | return -1; |
| 704 | |
| 705 | return isonum_711(p->skip); |
| 706 | } |