cd9660_rrip.c revision 1541
11541Srgrimes/*- 21541Srgrimes * Copyright (c) 1993, 1994 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * This code is derived from software contributed to Berkeley 61541Srgrimes * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension 71541Srgrimes * Support code is derived from software contributed to Berkeley 81541Srgrimes * by Atsushi Murai (amurai@spec.co.jp). 91541Srgrimes * 101541Srgrimes * Redistribution and use in source and binary forms, with or without 111541Srgrimes * modification, are permitted provided that the following conditions 121541Srgrimes * are met: 131541Srgrimes * 1. Redistributions of source code must retain the above copyright 141541Srgrimes * notice, this list of conditions and the following disclaimer. 151541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 161541Srgrimes * notice, this list of conditions and the following disclaimer in the 171541Srgrimes * documentation and/or other materials provided with the distribution. 181541Srgrimes * 3. All advertising materials mentioning features or use of this software 191541Srgrimes * must display the following acknowledgement: 201541Srgrimes * This product includes software developed by the University of 211541Srgrimes * California, Berkeley and its contributors. 221541Srgrimes * 4. Neither the name of the University nor the names of its contributors 231541Srgrimes * may be used to endorse or promote products derived from this software 241541Srgrimes * without specific prior written permission. 251541Srgrimes * 261541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 271541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 281541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 291541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 301541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 311541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 321541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 331541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 341541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 351541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 361541Srgrimes * SUCH DAMAGE. 371541Srgrimes * 381541Srgrimes * @(#)cd9660_rrip.c 8.2 (Berkeley) 1/23/94 391541Srgrimes */ 401541Srgrimes 411541Srgrimes#include <sys/param.h> 421541Srgrimes#include <sys/namei.h> 431541Srgrimes#include <sys/buf.h> 441541Srgrimes#include <sys/file.h> 451541Srgrimes#include <sys/vnode.h> 461541Srgrimes#include <sys/mount.h> 471541Srgrimes#include <sys/kernel.h> 481541Srgrimes#include <sys/stat.h> 491541Srgrimes#include <sys/types.h> 501541Srgrimes 511541Srgrimes#include <sys/time.h> 521541Srgrimes 531541Srgrimes#include <isofs/cd9660/iso.h> 541541Srgrimes#include <isofs/cd9660/cd9660_node.h> 551541Srgrimes#include <isofs/cd9660/cd9660_rrip.h> 561541Srgrimes#include <isofs/cd9660/iso_rrip.h> 571541Srgrimes 581541Srgrimes/* 591541Srgrimes * POSIX file attribute 601541Srgrimes */ 611541Srgrimesstatic int 621541Srgrimescd9660_rrip_attr(p,ana) 631541Srgrimes ISO_RRIP_ATTR *p; 641541Srgrimes ISO_RRIP_ANALYZE *ana; 651541Srgrimes{ 661541Srgrimes ana->inop->inode.iso_mode = isonum_731(p->mode_l); 671541Srgrimes ana->inop->inode.iso_uid = (uid_t)isonum_731(p->uid_l); 681541Srgrimes ana->inop->inode.iso_gid = (gid_t)isonum_731(p->gid_l); 691541Srgrimes ana->inop->inode.iso_links = isonum_731(p->links_l); 701541Srgrimes ana->fields &= ~ISO_SUSP_ATTR; 711541Srgrimes return ISO_SUSP_ATTR; 721541Srgrimes} 731541Srgrimes 741541Srgrimesstatic void 751541Srgrimescd9660_rrip_defattr(isodir,ana) 761541Srgrimes struct iso_directory_record *isodir; 771541Srgrimes ISO_RRIP_ANALYZE *ana; 781541Srgrimes{ 791541Srgrimes /* But this is a required field! */ 801541Srgrimes printf("RRIP without PX field?\n"); 811541Srgrimes cd9660_defattr(isodir,ana->inop,NULL); 821541Srgrimes} 831541Srgrimes 841541Srgrimes/* 851541Srgrimes * Symbolic Links 861541Srgrimes */ 871541Srgrimesstatic int 881541Srgrimescd9660_rrip_slink(p,ana) 891541Srgrimes ISO_RRIP_SLINK *p; 901541Srgrimes ISO_RRIP_ANALYZE *ana; 911541Srgrimes{ 921541Srgrimes register ISO_RRIP_SLINK_COMPONENT *pcomp; 931541Srgrimes register ISO_RRIP_SLINK_COMPONENT *pcompe; 941541Srgrimes int len, wlen, cont; 951541Srgrimes char *outbuf, *inbuf; 961541Srgrimes 971541Srgrimes pcomp = (ISO_RRIP_SLINK_COMPONENT *)p->component; 981541Srgrimes pcompe = (ISO_RRIP_SLINK_COMPONENT *)((char *)p + isonum_711(p->h.length)); 991541Srgrimes len = *ana->outlen; 1001541Srgrimes outbuf = ana->outbuf; 1011541Srgrimes cont = ana->cont; 1021541Srgrimes 1031541Srgrimes /* 1041541Srgrimes * Gathering a Symbolic name from each component with path 1051541Srgrimes */ 1061541Srgrimes for (; 1071541Srgrimes pcomp < pcompe; 1081541Srgrimes pcomp = (ISO_RRIP_SLINK_COMPONENT *)((char *)pcomp + ISO_RRIP_SLSIZ 1091541Srgrimes + isonum_711(pcomp->clen))) { 1101541Srgrimes 1111541Srgrimes if (!cont) { 1121541Srgrimes if (len < ana->maxlen) { 1131541Srgrimes len++; 1141541Srgrimes *outbuf++ = '/'; 1151541Srgrimes } 1161541Srgrimes } 1171541Srgrimes cont = 0; 1181541Srgrimes 1191541Srgrimes inbuf = ".."; 1201541Srgrimes wlen = 0; 1211541Srgrimes 1221541Srgrimes switch (*pcomp->cflag) { 1231541Srgrimes 1241541Srgrimes case ISO_SUSP_CFLAG_CURRENT: 1251541Srgrimes /* Inserting Current */ 1261541Srgrimes wlen = 1; 1271541Srgrimes break; 1281541Srgrimes 1291541Srgrimes case ISO_SUSP_CFLAG_PARENT: 1301541Srgrimes /* Inserting Parent */ 1311541Srgrimes wlen = 2; 1321541Srgrimes break; 1331541Srgrimes 1341541Srgrimes case ISO_SUSP_CFLAG_ROOT: 1351541Srgrimes /* Inserting slash for ROOT */ 1361541Srgrimes /* start over from beginning(?) */ 1371541Srgrimes outbuf -= len; 1381541Srgrimes len = 0; 1391541Srgrimes break; 1401541Srgrimes 1411541Srgrimes case ISO_SUSP_CFLAG_VOLROOT: 1421541Srgrimes /* Inserting a mount point i.e. "/cdrom" */ 1431541Srgrimes /* same as above */ 1441541Srgrimes outbuf -= len; 1451541Srgrimes len = 0; 1461541Srgrimes inbuf = ana->imp->im_mountp->mnt_stat.f_mntonname; 1471541Srgrimes wlen = strlen(inbuf); 1481541Srgrimes break; 1491541Srgrimes 1501541Srgrimes case ISO_SUSP_CFLAG_HOST: 1511541Srgrimes /* Inserting hostname i.e. "kurt.tools.de" */ 1521541Srgrimes inbuf = hostname; 1531541Srgrimes wlen = hostnamelen; 1541541Srgrimes break; 1551541Srgrimes 1561541Srgrimes case ISO_SUSP_CFLAG_CONTINUE: 1571541Srgrimes cont = 1; 1581541Srgrimes /* fall thru */ 1591541Srgrimes case 0: 1601541Srgrimes /* Inserting component */ 1611541Srgrimes wlen = isonum_711(pcomp->clen); 1621541Srgrimes inbuf = pcomp->name; 1631541Srgrimes break; 1641541Srgrimes default: 1651541Srgrimes printf("RRIP with incorrect flags?"); 1661541Srgrimes wlen = ana->maxlen + 1; 1671541Srgrimes break; 1681541Srgrimes } 1691541Srgrimes 1701541Srgrimes if (len + wlen > ana->maxlen) { 1711541Srgrimes /* indicate error to caller */ 1721541Srgrimes ana->cont = 1; 1731541Srgrimes ana->fields = 0; 1741541Srgrimes ana->outbuf -= *ana->outlen; 1751541Srgrimes *ana->outlen = 0; 1761541Srgrimes return 0; 1771541Srgrimes } 1781541Srgrimes 1791541Srgrimes bcopy(inbuf,outbuf,wlen); 1801541Srgrimes outbuf += wlen; 1811541Srgrimes len += wlen; 1821541Srgrimes 1831541Srgrimes } 1841541Srgrimes ana->outbuf = outbuf; 1851541Srgrimes *ana->outlen = len; 1861541Srgrimes ana->cont = cont; 1871541Srgrimes 1881541Srgrimes if (!isonum_711(p->flags)) { 1891541Srgrimes ana->fields &= ~ISO_SUSP_SLINK; 1901541Srgrimes return ISO_SUSP_SLINK; 1911541Srgrimes } 1921541Srgrimes return 0; 1931541Srgrimes} 1941541Srgrimes 1951541Srgrimes/* 1961541Srgrimes * Alternate name 1971541Srgrimes */ 1981541Srgrimesstatic int 1991541Srgrimescd9660_rrip_altname(p,ana) 2001541Srgrimes ISO_RRIP_ALTNAME *p; 2011541Srgrimes ISO_RRIP_ANALYZE *ana; 2021541Srgrimes{ 2031541Srgrimes char *inbuf; 2041541Srgrimes int wlen; 2051541Srgrimes int cont; 2061541Srgrimes 2071541Srgrimes inbuf = ".."; 2081541Srgrimes wlen = 0; 2091541Srgrimes cont = 0; 2101541Srgrimes 2111541Srgrimes switch (*p->flags) { 2121541Srgrimes case ISO_SUSP_CFLAG_CURRENT: 2131541Srgrimes /* Inserting Current */ 2141541Srgrimes wlen = 1; 2151541Srgrimes break; 2161541Srgrimes 2171541Srgrimes case ISO_SUSP_CFLAG_PARENT: 2181541Srgrimes /* Inserting Parent */ 2191541Srgrimes wlen = 2; 2201541Srgrimes break; 2211541Srgrimes 2221541Srgrimes case ISO_SUSP_CFLAG_HOST: 2231541Srgrimes /* Inserting hostname i.e. "kurt.tools.de" */ 2241541Srgrimes inbuf = hostname; 2251541Srgrimes wlen = hostnamelen; 2261541Srgrimes break; 2271541Srgrimes 2281541Srgrimes case ISO_SUSP_CFLAG_CONTINUE: 2291541Srgrimes cont = 1; 2301541Srgrimes /* fall thru */ 2311541Srgrimes case 0: 2321541Srgrimes /* Inserting component */ 2331541Srgrimes wlen = isonum_711(p->h.length) - 5; 2341541Srgrimes inbuf = (char *)p + 5; 2351541Srgrimes break; 2361541Srgrimes 2371541Srgrimes default: 2381541Srgrimes printf("RRIP with incorrect NM flags?\n"); 2391541Srgrimes wlen = ana->maxlen + 1; 2401541Srgrimes break; 2411541Srgrimes } 2421541Srgrimes 2431541Srgrimes if ((*ana->outlen += wlen) > ana->maxlen) { 2441541Srgrimes /* treat as no name field */ 2451541Srgrimes ana->fields &= ~ISO_SUSP_ALTNAME; 2461541Srgrimes ana->outbuf -= *ana->outlen - wlen; 2471541Srgrimes *ana->outlen = 0; 2481541Srgrimes return 0; 2491541Srgrimes } 2501541Srgrimes 2511541Srgrimes bcopy(inbuf,ana->outbuf,wlen); 2521541Srgrimes ana->outbuf += wlen; 2531541Srgrimes 2541541Srgrimes if (!cont) { 2551541Srgrimes ana->fields &= ~ISO_SUSP_ALTNAME; 2561541Srgrimes return ISO_SUSP_ALTNAME; 2571541Srgrimes } 2581541Srgrimes return 0; 2591541Srgrimes} 2601541Srgrimes 2611541Srgrimesstatic void 2621541Srgrimescd9660_rrip_defname(isodir,ana) 2631541Srgrimes struct iso_directory_record *isodir; 2641541Srgrimes ISO_RRIP_ANALYZE *ana; 2651541Srgrimes{ 2661541Srgrimes strcpy(ana->outbuf,".."); 2671541Srgrimes switch (*isodir->name) { 2681541Srgrimes default: 2691541Srgrimes isofntrans(isodir->name,isonum_711(isodir->name_len), 2701541Srgrimes ana->outbuf,ana->outlen, 2711541Srgrimes 1,isonum_711(isodir->flags)&4); 2721541Srgrimes break; 2731541Srgrimes case 0: 2741541Srgrimes *ana->outlen = 1; 2751541Srgrimes break; 2761541Srgrimes case 1: 2771541Srgrimes *ana->outlen = 2; 2781541Srgrimes break; 2791541Srgrimes } 2801541Srgrimes} 2811541Srgrimes 2821541Srgrimes/* 2831541Srgrimes * Parent or Child Link 2841541Srgrimes */ 2851541Srgrimesstatic int 2861541Srgrimescd9660_rrip_pclink(p,ana) 2871541Srgrimes ISO_RRIP_CLINK *p; 2881541Srgrimes ISO_RRIP_ANALYZE *ana; 2891541Srgrimes{ 2901541Srgrimes *ana->inump = isonum_733(p->dir_loc) << ana->imp->im_bshift; 2911541Srgrimes ana->fields &= ~(ISO_SUSP_CLINK|ISO_SUSP_PLINK); 2921541Srgrimes return *p->h.type == 'C' ? ISO_SUSP_CLINK : ISO_SUSP_PLINK; 2931541Srgrimes} 2941541Srgrimes 2951541Srgrimes/* 2961541Srgrimes * Relocated directory 2971541Srgrimes */ 2981541Srgrimesstatic int 2991541Srgrimescd9660_rrip_reldir(p,ana) 3001541Srgrimes ISO_RRIP_RELDIR *p; 3011541Srgrimes ISO_RRIP_ANALYZE *ana; 3021541Srgrimes{ 3031541Srgrimes /* special hack to make caller aware of RE field */ 3041541Srgrimes *ana->outlen = 0; 3051541Srgrimes ana->fields = 0; 3061541Srgrimes return ISO_SUSP_RELDIR|ISO_SUSP_ALTNAME|ISO_SUSP_CLINK|ISO_SUSP_PLINK; 3071541Srgrimes} 3081541Srgrimes 3091541Srgrimesstatic int 3101541Srgrimescd9660_rrip_tstamp(p,ana) 3111541Srgrimes ISO_RRIP_TSTAMP *p; 3121541Srgrimes ISO_RRIP_ANALYZE *ana; 3131541Srgrimes{ 3141541Srgrimes unsigned char *ptime; 3151541Srgrimes 3161541Srgrimes ptime = p->time; 3171541Srgrimes 3181541Srgrimes /* Check a format of time stamp (7bytes/17bytes) */ 3191541Srgrimes if (!(*p->flags&ISO_SUSP_TSTAMP_FORM17)) { 3201541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_CREAT) 3211541Srgrimes ptime += 7; 3221541Srgrimes 3231541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { 3241541Srgrimes cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_mtime); 3251541Srgrimes ptime += 7; 3261541Srgrimes } else 3271541Srgrimes bzero(&ana->inop->inode.iso_mtime,sizeof(struct timeval)); 3281541Srgrimes 3291541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { 3301541Srgrimes cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_atime); 3311541Srgrimes ptime += 7; 3321541Srgrimes } else 3331541Srgrimes ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; 3341541Srgrimes 3351541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_ATTR) 3361541Srgrimes cd9660_tstamp_conv7(ptime,&ana->inop->inode.iso_ctime); 3371541Srgrimes else 3381541Srgrimes ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; 3391541Srgrimes 3401541Srgrimes } else { 3411541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_CREAT) 3421541Srgrimes ptime += 17; 3431541Srgrimes 3441541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_MODIFY) { 3451541Srgrimes cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_mtime); 3461541Srgrimes ptime += 17; 3471541Srgrimes } else 3481541Srgrimes bzero(&ana->inop->inode.iso_mtime,sizeof(struct timeval)); 3491541Srgrimes 3501541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_ACCESS) { 3511541Srgrimes cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_atime); 3521541Srgrimes ptime += 17; 3531541Srgrimes } else 3541541Srgrimes ana->inop->inode.iso_atime = ana->inop->inode.iso_mtime; 3551541Srgrimes 3561541Srgrimes if (*p->flags&ISO_SUSP_TSTAMP_ATTR) 3571541Srgrimes cd9660_tstamp_conv17(ptime,&ana->inop->inode.iso_ctime); 3581541Srgrimes else 3591541Srgrimes ana->inop->inode.iso_ctime = ana->inop->inode.iso_mtime; 3601541Srgrimes 3611541Srgrimes } 3621541Srgrimes ana->fields &= ~ISO_SUSP_TSTAMP; 3631541Srgrimes return ISO_SUSP_TSTAMP; 3641541Srgrimes} 3651541Srgrimes 3661541Srgrimesstatic void 3671541Srgrimescd9660_rrip_deftstamp(isodir,ana) 3681541Srgrimes struct iso_directory_record *isodir; 3691541Srgrimes ISO_RRIP_ANALYZE *ana; 3701541Srgrimes{ 3711541Srgrimes cd9660_deftstamp(isodir,ana->inop,NULL); 3721541Srgrimes} 3731541Srgrimes 3741541Srgrimes/* 3751541Srgrimes * POSIX device modes 3761541Srgrimes */ 3771541Srgrimesstatic int 3781541Srgrimescd9660_rrip_device(p,ana) 3791541Srgrimes ISO_RRIP_DEVICE *p; 3801541Srgrimes ISO_RRIP_ANALYZE *ana; 3811541Srgrimes{ 3821541Srgrimes unsigned high, low; 3831541Srgrimes 3841541Srgrimes high = isonum_733(p->dev_t_high_l); 3851541Srgrimes low = isonum_733(p->dev_t_low_l); 3861541Srgrimes 3871541Srgrimes if ( high == 0 ) { 3881541Srgrimes ana->inop->inode.iso_rdev = makedev( major(low), minor(low) ); 3891541Srgrimes } else { 3901541Srgrimes ana->inop->inode.iso_rdev = makedev( high, minor(low) ); 3911541Srgrimes } 3921541Srgrimes ana->fields &= ~ISO_SUSP_DEVICE; 3931541Srgrimes return ISO_SUSP_DEVICE; 3941541Srgrimes} 3951541Srgrimes 3961541Srgrimes/* 3971541Srgrimes * Flag indicating 3981541Srgrimes */ 3991541Srgrimesstatic int 4001541Srgrimescd9660_rrip_idflag(p,ana) 4011541Srgrimes ISO_RRIP_IDFLAG *p; 4021541Srgrimes ISO_RRIP_ANALYZE *ana; 4031541Srgrimes{ 4041541Srgrimes ana->fields &= isonum_711(p->flags)|~0xff; /* don't touch high bits */ 4051541Srgrimes /* special handling of RE field */ 4061541Srgrimes if (ana->fields&ISO_SUSP_RELDIR) 4071541Srgrimes return cd9660_rrip_reldir(p,ana); 4081541Srgrimes 4091541Srgrimes return ISO_SUSP_IDFLAG; 4101541Srgrimes} 4111541Srgrimes 4121541Srgrimes/* 4131541Srgrimes * Continuation pointer 4141541Srgrimes */ 4151541Srgrimesstatic int 4161541Srgrimescd9660_rrip_cont(p,ana) 4171541Srgrimes ISO_RRIP_CONT *p; 4181541Srgrimes ISO_RRIP_ANALYZE *ana; 4191541Srgrimes{ 4201541Srgrimes ana->iso_ce_blk = isonum_733(p->location); 4211541Srgrimes ana->iso_ce_off = isonum_733(p->offset); 4221541Srgrimes ana->iso_ce_len = isonum_733(p->length); 4231541Srgrimes return ISO_SUSP_CONT; 4241541Srgrimes} 4251541Srgrimes 4261541Srgrimes/* 4271541Srgrimes * System Use end 4281541Srgrimes */ 4291541Srgrimesstatic int 4301541Srgrimescd9660_rrip_stop(p,ana) 4311541Srgrimes ISO_SUSP_HEADER *p; 4321541Srgrimes ISO_RRIP_ANALYZE *ana; 4331541Srgrimes{ 4341541Srgrimes /* stop analyzing */ 4351541Srgrimes ana->fields = 0; 4361541Srgrimes return ISO_SUSP_STOP; 4371541Srgrimes} 4381541Srgrimes 4391541Srgrimes/* 4401541Srgrimes * Extension reference 4411541Srgrimes */ 4421541Srgrimesstatic int 4431541Srgrimescd9660_rrip_extref(p,ana) 4441541Srgrimes ISO_RRIP_EXTREF *p; 4451541Srgrimes ISO_RRIP_ANALYZE *ana; 4461541Srgrimes{ 4471541Srgrimes if (isonum_711(p->len_id) != 10 4481541Srgrimes || bcmp((char *)p + 8,"RRIP_1991A",10) 4491541Srgrimes || isonum_711(p->version) != 1) 4501541Srgrimes return 0; 4511541Srgrimes ana->fields &= ~ISO_SUSP_EXTREF; 4521541Srgrimes return ISO_SUSP_EXTREF; 4531541Srgrimes} 4541541Srgrimes 4551541Srgrimestypedef struct { 4561541Srgrimes char type[2]; 4571541Srgrimes int (*func)(); 4581541Srgrimes void (*func2)(); 4591541Srgrimes int result; 4601541Srgrimes} RRIP_TABLE; 4611541Srgrimes 4621541Srgrimesstatic int 4631541Srgrimescd9660_rrip_loop(isodir,ana,table) 4641541Srgrimes struct iso_directory_record *isodir; 4651541Srgrimes ISO_RRIP_ANALYZE *ana; 4661541Srgrimes RRIP_TABLE *table; 4671541Srgrimes{ 4681541Srgrimes register RRIP_TABLE *ptable; 4691541Srgrimes register ISO_SUSP_HEADER *phead; 4701541Srgrimes register ISO_SUSP_HEADER *pend; 4711541Srgrimes struct buf *bp = NULL; 4721541Srgrimes int i; 4731541Srgrimes char *pwhead; 4741541Srgrimes int result; 4751541Srgrimes 4761541Srgrimes /* 4771541Srgrimes * Note: If name length is odd, 4781541Srgrimes * it will be padding 1 byte after the name 4791541Srgrimes */ 4801541Srgrimes pwhead = isodir->name + isonum_711(isodir->name_len); 4811541Srgrimes if (!(isonum_711(isodir->name_len)&1)) 4821541Srgrimes pwhead++; 4831541Srgrimes 4841541Srgrimes /* If it's not the '.' entry of the root dir obey SP field */ 4851541Srgrimes if (*isodir->name != 0 4861541Srgrimes || isonum_733(isodir->extent) != ana->imp->root_extent) 4871541Srgrimes pwhead += ana->imp->rr_skip; 4881541Srgrimes else 4891541Srgrimes pwhead += ana->imp->rr_skip0; 4901541Srgrimes 4911541Srgrimes phead = (ISO_SUSP_HEADER *)pwhead; 4921541Srgrimes pend = (ISO_SUSP_HEADER *)((char *)isodir + isonum_711(isodir->length)); 4931541Srgrimes 4941541Srgrimes result = 0; 4951541Srgrimes while (1) { 4961541Srgrimes ana->iso_ce_len = 0; 4971541Srgrimes /* 4981541Srgrimes * Note: "pend" should be more than one SUSP header 4991541Srgrimes */ 5001541Srgrimes while (pend >= phead + 1) { 5011541Srgrimes if (isonum_711(phead->version) == 1) { 5021541Srgrimes for (ptable = table; ptable->func; ptable++) { 5031541Srgrimes if (*phead->type == *ptable->type 5041541Srgrimes && phead->type[1] == ptable->type[1]) { 5051541Srgrimes result |= ptable->func(phead,ana); 5061541Srgrimes break; 5071541Srgrimes } 5081541Srgrimes } 5091541Srgrimes if (!ana->fields) 5101541Srgrimes break; 5111541Srgrimes } 5121541Srgrimes /* 5131541Srgrimes * move to next SUSP 5141541Srgrimes * Hopefully this works with newer versions, too 5151541Srgrimes */ 5161541Srgrimes phead = (ISO_SUSP_HEADER *)((char *)phead + isonum_711(phead->length)); 5171541Srgrimes } 5181541Srgrimes 5191541Srgrimes if ( ana->fields && ana->iso_ce_len ) { 5201541Srgrimes if (ana->iso_ce_blk >= ana->imp->volume_space_size 5211541Srgrimes || ana->iso_ce_off + ana->iso_ce_len > ana->imp->logical_block_size 5221541Srgrimes || bread(ana->imp->im_devvp, 5231541Srgrimes ana->iso_ce_blk * ana->imp->logical_block_size / DEV_BSIZE, 5241541Srgrimes ana->imp->logical_block_size,NOCRED,&bp)) 5251541Srgrimes /* what to do now? */ 5261541Srgrimes break; 5271541Srgrimes phead = (ISO_SUSP_HEADER *)(bp->b_un.b_addr + ana->iso_ce_off); 5281541Srgrimes pend = (ISO_SUSP_HEADER *) ((char *)phead + ana->iso_ce_len); 5291541Srgrimes } else 5301541Srgrimes break; 5311541Srgrimes } 5321541Srgrimes if (bp) 5331541Srgrimes brelse(bp); 5341541Srgrimes /* 5351541Srgrimes * If we don't find the Basic SUSP stuffs, just set default value 5361541Srgrimes * ( attribute/time stamp ) 5371541Srgrimes */ 5381541Srgrimes for (ptable = table; ptable->func2; ptable++) 5391541Srgrimes if (!(ptable->result&result)) 5401541Srgrimes ptable->func2(isodir,ana); 5411541Srgrimes 5421541Srgrimes return result; 5431541Srgrimes} 5441541Srgrimes 5451541Srgrimesstatic RRIP_TABLE rrip_table_analyze[] = { 5461541Srgrimes { "PX", cd9660_rrip_attr, cd9660_rrip_defattr, ISO_SUSP_ATTR }, 5471541Srgrimes { "TF", cd9660_rrip_tstamp, cd9660_rrip_deftstamp, ISO_SUSP_TSTAMP }, 5481541Srgrimes { "PN", cd9660_rrip_device, 0, ISO_SUSP_DEVICE }, 5491541Srgrimes { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 5501541Srgrimes { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 5511541Srgrimes { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 5521541Srgrimes { "", 0, 0, 0 } 5531541Srgrimes}; 5541541Srgrimes 5551541Srgrimesint 5561541Srgrimescd9660_rrip_analyze(isodir,inop,imp) 5571541Srgrimes struct iso_directory_record *isodir; 5581541Srgrimes struct iso_node *inop; 5591541Srgrimes struct iso_mnt *imp; 5601541Srgrimes{ 5611541Srgrimes ISO_RRIP_ANALYZE analyze; 5621541Srgrimes 5631541Srgrimes analyze.inop = inop; 5641541Srgrimes analyze.imp = imp; 5651541Srgrimes analyze.fields = ISO_SUSP_ATTR|ISO_SUSP_TSTAMP|ISO_SUSP_DEVICE; 5661541Srgrimes 5671541Srgrimes return cd9660_rrip_loop(isodir,&analyze,rrip_table_analyze); 5681541Srgrimes} 5691541Srgrimes 5701541Srgrimes/* 5711541Srgrimes * Get Alternate Name from 'AL' record 5721541Srgrimes * If either no AL record or 0 length, 5731541Srgrimes * it will be return the translated ISO9660 name, 5741541Srgrimes */ 5751541Srgrimesstatic RRIP_TABLE rrip_table_getname[] = { 5761541Srgrimes { "NM", cd9660_rrip_altname, cd9660_rrip_defname, ISO_SUSP_ALTNAME }, 5771541Srgrimes { "CL", cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, 5781541Srgrimes { "PL", cd9660_rrip_pclink, 0, ISO_SUSP_CLINK|ISO_SUSP_PLINK }, 5791541Srgrimes { "RE", cd9660_rrip_reldir, 0, ISO_SUSP_RELDIR }, 5801541Srgrimes { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 5811541Srgrimes { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 5821541Srgrimes { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 5831541Srgrimes { "", 0, 0, 0 } 5841541Srgrimes}; 5851541Srgrimes 5861541Srgrimesint 5871541Srgrimescd9660_rrip_getname(isodir,outbuf,outlen,inump,imp) 5881541Srgrimes struct iso_directory_record *isodir; 5891541Srgrimes char *outbuf; 5901541Srgrimes u_short *outlen; 5911541Srgrimes ino_t *inump; 5921541Srgrimes struct iso_mnt *imp; 5931541Srgrimes{ 5941541Srgrimes ISO_RRIP_ANALYZE analyze; 5951541Srgrimes RRIP_TABLE *tab; 5961541Srgrimes 5971541Srgrimes analyze.outbuf = outbuf; 5981541Srgrimes analyze.outlen = outlen; 5991541Srgrimes analyze.maxlen = NAME_MAX; 6001541Srgrimes analyze.inump = inump; 6011541Srgrimes analyze.imp = imp; 6021541Srgrimes analyze.fields = ISO_SUSP_ALTNAME|ISO_SUSP_RELDIR|ISO_SUSP_CLINK|ISO_SUSP_PLINK; 6031541Srgrimes *outlen = 0; 6041541Srgrimes 6051541Srgrimes tab = rrip_table_getname; 6061541Srgrimes if (*isodir->name == 0 6071541Srgrimes || *isodir->name == 1) { 6081541Srgrimes cd9660_rrip_defname(isodir,&analyze); 6091541Srgrimes 6101541Srgrimes analyze.fields &= ~ISO_SUSP_ALTNAME; 6111541Srgrimes tab++; 6121541Srgrimes } 6131541Srgrimes 6141541Srgrimes return cd9660_rrip_loop(isodir,&analyze,tab); 6151541Srgrimes} 6161541Srgrimes 6171541Srgrimes/* 6181541Srgrimes * Get Symbolic Name from 'SL' record 6191541Srgrimes * 6201541Srgrimes * Note: isodir should contains SL record! 6211541Srgrimes */ 6221541Srgrimesstatic RRIP_TABLE rrip_table_getsymname[] = { 6231541Srgrimes { "SL", cd9660_rrip_slink, 0, ISO_SUSP_SLINK }, 6241541Srgrimes { "RR", cd9660_rrip_idflag, 0, ISO_SUSP_IDFLAG }, 6251541Srgrimes { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 6261541Srgrimes { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 6271541Srgrimes { "", 0, 0, 0 } 6281541Srgrimes}; 6291541Srgrimes 6301541Srgrimesint 6311541Srgrimescd9660_rrip_getsymname(isodir,outbuf,outlen,imp) 6321541Srgrimes struct iso_directory_record *isodir; 6331541Srgrimes char *outbuf; 6341541Srgrimes u_short *outlen; 6351541Srgrimes struct iso_mnt *imp; 6361541Srgrimes{ 6371541Srgrimes ISO_RRIP_ANALYZE analyze; 6381541Srgrimes 6391541Srgrimes analyze.outbuf = outbuf; 6401541Srgrimes analyze.outlen = outlen; 6411541Srgrimes *outlen = 0; 6421541Srgrimes analyze.maxlen = MAXPATHLEN; 6431541Srgrimes analyze.cont = 1; /* don't start with a slash */ 6441541Srgrimes analyze.imp = imp; 6451541Srgrimes analyze.fields = ISO_SUSP_SLINK; 6461541Srgrimes 6471541Srgrimes return (cd9660_rrip_loop(isodir,&analyze,rrip_table_getsymname)&ISO_SUSP_SLINK); 6481541Srgrimes} 6491541Srgrimes 6501541Srgrimesstatic RRIP_TABLE rrip_table_extref[] = { 6511541Srgrimes { "ER", cd9660_rrip_extref, 0, ISO_SUSP_EXTREF }, 6521541Srgrimes { "CE", cd9660_rrip_cont, 0, ISO_SUSP_CONT }, 6531541Srgrimes { "ST", cd9660_rrip_stop, 0, ISO_SUSP_STOP }, 6541541Srgrimes { "", 0, 0, 0 } 6551541Srgrimes}; 6561541Srgrimes 6571541Srgrimes/* 6581541Srgrimes * Check for Rock Ridge Extension and return offset of its fields. 6591541Srgrimes * Note: We require the ER field. 6601541Srgrimes */ 6611541Srgrimesint 6621541Srgrimescd9660_rrip_offset(isodir,imp) 6631541Srgrimes struct iso_directory_record *isodir; 6641541Srgrimes struct iso_mnt *imp; 6651541Srgrimes{ 6661541Srgrimes ISO_RRIP_OFFSET *p; 6671541Srgrimes ISO_RRIP_ANALYZE analyze; 6681541Srgrimes 6691541Srgrimes imp->rr_skip0 = 0; 6701541Srgrimes p = (ISO_RRIP_OFFSET *)(isodir->name + 1); 6711541Srgrimes if (bcmp(p,"SP\7\1\276\357",6)) { 6721541Srgrimes /* Maybe, it's a CDROM XA disc? */ 6731541Srgrimes imp->rr_skip0 = 15; 6741541Srgrimes p = (ISO_RRIP_OFFSET *)((char *)p + 15); 6751541Srgrimes if (bcmp(p,"SP\7\1\276\357",6)) 6761541Srgrimes return -1; 6771541Srgrimes } 6781541Srgrimes 6791541Srgrimes analyze.imp = imp; 6801541Srgrimes analyze.fields = ISO_SUSP_EXTREF; 6811541Srgrimes if (!(cd9660_rrip_loop(isodir,&analyze,rrip_table_extref)&ISO_SUSP_EXTREF)) 6821541Srgrimes return -1; 6831541Srgrimes 6841541Srgrimes return isonum_711(p->skip); 6851541Srgrimes} 686