1df8bae1dSRodney W. Grimes /*- 2996c772fSJohn Dyson * Copyright (c) 1982, 1986, 1989, 1994, 1995 3df8bae1dSRodney W. Grimes * The Regents of the University of California. All rights reserved. 4df8bae1dSRodney W. Grimes * 5df8bae1dSRodney W. Grimes * This code is derived from software contributed to Berkeley 6df8bae1dSRodney W. Grimes * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension 7df8bae1dSRodney W. Grimes * Support code is derived from software contributed to Berkeley 8df8bae1dSRodney W. Grimes * by Atsushi Murai (amurai@spec.co.jp). 9df8bae1dSRodney W. Grimes * 10df8bae1dSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 11df8bae1dSRodney W. Grimes * modification, are permitted provided that the following conditions 12df8bae1dSRodney W. Grimes * are met: 13df8bae1dSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 14df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 15df8bae1dSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 16df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 17df8bae1dSRodney W. Grimes * documentation and/or other materials provided with the distribution. 18df8bae1dSRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 19df8bae1dSRodney W. Grimes * must display the following acknowledgement: 20df8bae1dSRodney W. Grimes * This product includes software developed by the University of 21df8bae1dSRodney W. Grimes * California, Berkeley and its contributors. 22df8bae1dSRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 23df8bae1dSRodney W. Grimes * may be used to endorse or promote products derived from this software 24df8bae1dSRodney W. Grimes * without specific prior written permission. 25df8bae1dSRodney W. Grimes * 26df8bae1dSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27df8bae1dSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28df8bae1dSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29df8bae1dSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30df8bae1dSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31df8bae1dSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32df8bae1dSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33df8bae1dSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34df8bae1dSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35df8bae1dSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36df8bae1dSRodney W. Grimes * SUCH DAMAGE. 37df8bae1dSRodney W. Grimes * 38df8bae1dSRodney W. Grimes * @(#)cd9660_node.c 8.2 (Berkeley) 1/23/94 39c3aac50fSPeter Wemm * $FreeBSD$ 40df8bae1dSRodney W. Grimes */ 41df8bae1dSRodney W. Grimes 42df8bae1dSRodney W. Grimes #include <sys/param.h> 43df8bae1dSRodney W. Grimes #include <sys/systm.h> 44df8bae1dSRodney W. Grimes #include <sys/mount.h> 459626b608SPoul-Henning Kamp #include <sys/bio.h> 46df8bae1dSRodney W. Grimes #include <sys/buf.h> 47df8bae1dSRodney W. Grimes #include <sys/vnode.h> 48df8bae1dSRodney W. Grimes #include <sys/malloc.h> 49df8bae1dSRodney W. Grimes #include <sys/stat.h> 501b367556SJason Evans #include <sys/mutex.h> 51a18b1f1dSJason Evans 52df8bae1dSRodney W. Grimes #include <isofs/cd9660/iso.h> 53df8bae1dSRodney W. Grimes #include <isofs/cd9660/cd9660_node.h> 54996c772fSJohn Dyson #include <isofs/cd9660/cd9660_mount.h> 55df8bae1dSRodney W. Grimes 56996c772fSJohn Dyson /* 57996c772fSJohn Dyson * Structures associated with iso_node caching. 58996c772fSJohn Dyson */ 59303b270bSEivind Eklund static struct iso_node **isohashtbl; 60303b270bSEivind Eklund static u_long isohash; 61bfbb9ce6SPoul-Henning Kamp #define INOHASH(device, inum) ((minor(device) + ((inum)>>12)) & isohash) 621b367556SJason Evans static struct mtx cd9660_ihash_mtx; 63df8bae1dSRodney W. Grimes 6489c9a483SAlfred Perlstein static void cd9660_ihashrem(struct iso_node *); 6589c9a483SAlfred Perlstein static unsigned cd9660_chars2ui(unsigned char *begin, int len); 6610dd32cdSBruce Evans 67df8bae1dSRodney W. Grimes /* 68df8bae1dSRodney W. Grimes * Initialize hash links for inodes and dnodes. 69df8bae1dSRodney W. Grimes */ 7026f9a767SRodney W. Grimes int 71996c772fSJohn Dyson cd9660_init(vfsp) 72996c772fSJohn Dyson struct vfsconf *vfsp; 73df8bae1dSRodney W. Grimes { 74df8bae1dSRodney W. Grimes 75996c772fSJohn Dyson isohashtbl = hashinit(desiredvnodes, M_ISOFSMNT, &isohash); 761b367556SJason Evans mtx_init(&cd9660_ihash_mtx, "cd9660_ihash", MTX_DEF); 7726f9a767SRodney W. Grimes return (0); 78df8bae1dSRodney W. Grimes } 79df8bae1dSRodney W. Grimes 806843189aSBoris Popov int 816843189aSBoris Popov cd9660_uninit(vfsp) 826843189aSBoris Popov struct vfsconf *vfsp; 836843189aSBoris Popov { 846843189aSBoris Popov 856843189aSBoris Popov if (isohashtbl != NULL) 866843189aSBoris Popov free(isohashtbl, M_ISOFSMNT); 876843189aSBoris Popov return (0); 886843189aSBoris Popov } 896843189aSBoris Popov 90df8bae1dSRodney W. Grimes 91df8bae1dSRodney W. Grimes /* 92996c772fSJohn Dyson * Use the device/inum pair to find the incore inode, and return a pointer 93996c772fSJohn Dyson * to it. If it is in core, but locked, wait for it. 94df8bae1dSRodney W. Grimes */ 95a0595d02SKirk McKusick int 96a0595d02SKirk McKusick cd9660_ihashget(dev, inum, flags, vpp) 97996c772fSJohn Dyson dev_t dev; 98996c772fSJohn Dyson ino_t inum; 99a0595d02SKirk McKusick int flags; 100a0595d02SKirk McKusick struct vnode **vpp; 101df8bae1dSRodney W. Grimes { 102b40ce416SJulian Elischer struct thread *td = curthread; /* XXX */ 103996c772fSJohn Dyson struct iso_node *ip; 104996c772fSJohn Dyson struct vnode *vp; 105a0595d02SKirk McKusick int error; 106df8bae1dSRodney W. Grimes 107a0595d02SKirk McKusick *vpp = NULL; 108df8bae1dSRodney W. Grimes loop: 1099ed346baSBosko Milekic mtx_lock(&cd9660_ihash_mtx); 110996c772fSJohn Dyson for (ip = isohashtbl[INOHASH(dev, inum)]; ip; ip = ip->i_next) { 111996c772fSJohn Dyson if (inum == ip->i_number && dev == ip->i_dev) { 112df8bae1dSRodney W. Grimes vp = ITOV(ip); 1139ed346baSBosko Milekic mtx_lock(&vp->v_interlock); 1149ed346baSBosko Milekic mtx_unlock(&cd9660_ihash_mtx); 115a0595d02SKirk McKusick error = vget(vp, flags | LK_INTERLOCK, td); 116a0595d02SKirk McKusick if (error == ENOENT) 117996c772fSJohn Dyson goto loop; 118a0595d02SKirk McKusick if (error) 119a0595d02SKirk McKusick return (error); 120a0595d02SKirk McKusick *vpp = vp; 121a0595d02SKirk McKusick return (0); 122df8bae1dSRodney W. Grimes } 123df8bae1dSRodney W. Grimes } 1249ed346baSBosko Milekic mtx_unlock(&cd9660_ihash_mtx); 125a0595d02SKirk McKusick return (0); 126996c772fSJohn Dyson } 127df8bae1dSRodney W. Grimes 128996c772fSJohn Dyson /* 129996c772fSJohn Dyson * Insert the inode into the hash table, and return it locked. 130996c772fSJohn Dyson */ 131996c772fSJohn Dyson void 132996c772fSJohn Dyson cd9660_ihashins(ip) 133996c772fSJohn Dyson struct iso_node *ip; 134996c772fSJohn Dyson { 135996c772fSJohn Dyson struct iso_node **ipp, *iq; 136df8bae1dSRodney W. Grimes 1379ed346baSBosko Milekic mtx_lock(&cd9660_ihash_mtx); 138996c772fSJohn Dyson ipp = &isohashtbl[INOHASH(ip->i_dev, ip->i_number)]; 139d254af07SMatthew Dillon if ((iq = *ipp) != NULL) 140996c772fSJohn Dyson iq->i_prev = &ip->i_next; 141996c772fSJohn Dyson ip->i_next = iq; 142996c772fSJohn Dyson ip->i_prev = ipp; 143df8bae1dSRodney W. Grimes *ipp = ip; 1449ed346baSBosko Milekic mtx_unlock(&cd9660_ihash_mtx); 145996c772fSJohn Dyson 146b40ce416SJulian Elischer lockmgr(&ip->i_vnode->v_lock, LK_EXCLUSIVE, (struct mtx *)0, curthread); 147df8bae1dSRodney W. Grimes } 148df8bae1dSRodney W. Grimes 149df8bae1dSRodney W. Grimes /* 150996c772fSJohn Dyson * Remove the inode from the hash table. 151df8bae1dSRodney W. Grimes */ 152f041a9bdSPoul-Henning Kamp static void 153996c772fSJohn Dyson cd9660_ihashrem(ip) 154df8bae1dSRodney W. Grimes register struct iso_node *ip; 155df8bae1dSRodney W. Grimes { 156996c772fSJohn Dyson register struct iso_node *iq; 157df8bae1dSRodney W. Grimes 1589ed346baSBosko Milekic mtx_lock(&cd9660_ihash_mtx); 159d254af07SMatthew Dillon if ((iq = ip->i_next) != NULL) 160996c772fSJohn Dyson iq->i_prev = ip->i_prev; 161996c772fSJohn Dyson *ip->i_prev = iq; 162996c772fSJohn Dyson #ifdef DIAGNOSTIC 163996c772fSJohn Dyson ip->i_next = NULL; 164996c772fSJohn Dyson ip->i_prev = NULL; 165996c772fSJohn Dyson #endif 1669ed346baSBosko Milekic mtx_unlock(&cd9660_ihash_mtx); 167df8bae1dSRodney W. Grimes } 168df8bae1dSRodney W. Grimes 169df8bae1dSRodney W. Grimes /* 170df8bae1dSRodney W. Grimes * Last reference to an inode, write the inode out and if necessary, 171df8bae1dSRodney W. Grimes * truncate and deallocate the file. 172df8bae1dSRodney W. Grimes */ 173df8bae1dSRodney W. Grimes int 174df8bae1dSRodney W. Grimes cd9660_inactive(ap) 175df8bae1dSRodney W. Grimes struct vop_inactive_args /* { 176df8bae1dSRodney W. Grimes struct vnode *a_vp; 177b40ce416SJulian Elischer struct thread *a_td; 178df8bae1dSRodney W. Grimes } */ *ap; 179df8bae1dSRodney W. Grimes { 180df8bae1dSRodney W. Grimes struct vnode *vp = ap->a_vp; 181b40ce416SJulian Elischer struct thread *td = ap->a_td; 182df8bae1dSRodney W. Grimes register struct iso_node *ip = VTOI(vp); 1831295d82eSGary Palmer int error = 0; 184df8bae1dSRodney W. Grimes 185df8bae1dSRodney W. Grimes if (prtactive && vp->v_usecount != 0) 186df8bae1dSRodney W. Grimes vprint("cd9660_inactive: pushing active", vp); 187df8bae1dSRodney W. Grimes 188df8bae1dSRodney W. Grimes ip->i_flag = 0; 189b40ce416SJulian Elischer VOP_UNLOCK(vp, 0, td); 190df8bae1dSRodney W. Grimes /* 191df8bae1dSRodney W. Grimes * If we are done with the inode, reclaim it 192df8bae1dSRodney W. Grimes * so that it can be reused immediately. 193df8bae1dSRodney W. Grimes */ 194996c772fSJohn Dyson if (ip->inode.iso_mode == 0) 195b40ce416SJulian Elischer vrecycle(vp, NULL, td); 196df8bae1dSRodney W. Grimes return error; 197df8bae1dSRodney W. Grimes } 198df8bae1dSRodney W. Grimes 199df8bae1dSRodney W. Grimes /* 200df8bae1dSRodney W. Grimes * Reclaim an inode so that it can be used for other purposes. 201df8bae1dSRodney W. Grimes */ 202df8bae1dSRodney W. Grimes int 203df8bae1dSRodney W. Grimes cd9660_reclaim(ap) 204df8bae1dSRodney W. Grimes struct vop_reclaim_args /* { 205df8bae1dSRodney W. Grimes struct vnode *a_vp; 206b40ce416SJulian Elischer struct thread *a_td; 207df8bae1dSRodney W. Grimes } */ *ap; 208df8bae1dSRodney W. Grimes { 209df8bae1dSRodney W. Grimes register struct vnode *vp = ap->a_vp; 210df8bae1dSRodney W. Grimes register struct iso_node *ip = VTOI(vp); 211df8bae1dSRodney W. Grimes 212df8bae1dSRodney W. Grimes if (prtactive && vp->v_usecount != 0) 213df8bae1dSRodney W. Grimes vprint("cd9660_reclaim: pushing active", vp); 214df8bae1dSRodney W. Grimes /* 215df8bae1dSRodney W. Grimes * Remove the inode from its hash chain. 216df8bae1dSRodney W. Grimes */ 217996c772fSJohn Dyson cd9660_ihashrem(ip); 218df8bae1dSRodney W. Grimes /* 219df8bae1dSRodney W. Grimes * Purge old data structures associated with the inode. 220df8bae1dSRodney W. Grimes */ 221df8bae1dSRodney W. Grimes cache_purge(vp); 222df8bae1dSRodney W. Grimes if (ip->i_devvp) { 223df8bae1dSRodney W. Grimes vrele(ip->i_devvp); 224df8bae1dSRodney W. Grimes ip->i_devvp = 0; 225df8bae1dSRodney W. Grimes } 226a18b1f1dSJason Evans lockdestroy(&ip->i_vnode->v_lock); 227df8bae1dSRodney W. Grimes FREE(vp->v_data, M_ISOFSNODE); 228df8bae1dSRodney W. Grimes vp->v_data = NULL; 22926f9a767SRodney W. Grimes return (0); 230df8bae1dSRodney W. Grimes } 231df8bae1dSRodney W. Grimes 232df8bae1dSRodney W. Grimes /* 233df8bae1dSRodney W. Grimes * File attributes 234df8bae1dSRodney W. Grimes */ 235df8bae1dSRodney W. Grimes void 236988fa8efSJoerg Wunsch cd9660_defattr(isodir, inop, bp, ftype) 237df8bae1dSRodney W. Grimes struct iso_directory_record *isodir; 238df8bae1dSRodney W. Grimes struct iso_node *inop; 239df8bae1dSRodney W. Grimes struct buf *bp; 240988fa8efSJoerg Wunsch enum ISO_FTYPE ftype; 241df8bae1dSRodney W. Grimes { 242df8bae1dSRodney W. Grimes struct buf *bp2 = NULL; 243df8bae1dSRodney W. Grimes struct iso_mnt *imp; 244df8bae1dSRodney W. Grimes struct iso_extended_attributes *ap = NULL; 245df8bae1dSRodney W. Grimes int off; 246df8bae1dSRodney W. Grimes 247988fa8efSJoerg Wunsch /* high sierra does not have timezone data, flag is one byte ahead */ 248988fa8efSJoerg Wunsch if (isonum_711(ftype == ISO_FTYPE_HIGH_SIERRA? 249988fa8efSJoerg Wunsch &isodir->date[6]: isodir->flags)&2) { 250df8bae1dSRodney W. Grimes inop->inode.iso_mode = S_IFDIR; 251df8bae1dSRodney W. Grimes /* 252df8bae1dSRodney W. Grimes * If we return 2, fts() will assume there are no subdirectories 253df8bae1dSRodney W. Grimes * (just links for the path and .), so instead we return 1. 254df8bae1dSRodney W. Grimes */ 255df8bae1dSRodney W. Grimes inop->inode.iso_links = 1; 256df8bae1dSRodney W. Grimes } else { 257df8bae1dSRodney W. Grimes inop->inode.iso_mode = S_IFREG; 258df8bae1dSRodney W. Grimes inop->inode.iso_links = 1; 259df8bae1dSRodney W. Grimes } 260df8bae1dSRodney W. Grimes if (!bp 261df8bae1dSRodney W. Grimes && ((imp = inop->i_mnt)->im_flags & ISOFSMNT_EXTATT) 262df8bae1dSRodney W. Grimes && (off = isonum_711(isodir->ext_attr_length))) { 263cec0f20cSPoul-Henning Kamp cd9660_blkatoff(ITOV(inop), (off_t)-(off << imp->im_bshift), NULL, 264996c772fSJohn Dyson &bp2); 265df8bae1dSRodney W. Grimes bp = bp2; 266df8bae1dSRodney W. Grimes } 267df8bae1dSRodney W. Grimes if (bp) { 268996c772fSJohn Dyson ap = (struct iso_extended_attributes *)bp->b_data; 269df8bae1dSRodney W. Grimes 270df8bae1dSRodney W. Grimes if (isonum_711(ap->version) == 1) { 271df8bae1dSRodney W. Grimes if (!(ap->perm[0]&0x40)) 272df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VEXEC >> 6; 273df8bae1dSRodney W. Grimes if (!(ap->perm[0]&0x10)) 274df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VREAD >> 6; 275df8bae1dSRodney W. Grimes if (!(ap->perm[0]&4)) 276df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VEXEC >> 3; 277df8bae1dSRodney W. Grimes if (!(ap->perm[0]&1)) 278df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VREAD >> 3; 279df8bae1dSRodney W. Grimes if (!(ap->perm[1]&0x40)) 280df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VEXEC; 281df8bae1dSRodney W. Grimes if (!(ap->perm[1]&0x10)) 282df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VREAD; 283df8bae1dSRodney W. Grimes inop->inode.iso_uid = isonum_723(ap->owner); /* what about 0? */ 284df8bae1dSRodney W. Grimes inop->inode.iso_gid = isonum_723(ap->group); /* what about 0? */ 285df8bae1dSRodney W. Grimes } else 286df8bae1dSRodney W. Grimes ap = NULL; 287df8bae1dSRodney W. Grimes } 288df8bae1dSRodney W. Grimes if (!ap) { 289df8bae1dSRodney W. Grimes inop->inode.iso_mode |= VREAD|VEXEC|(VREAD|VEXEC)>>3|(VREAD|VEXEC)>>6; 290df8bae1dSRodney W. Grimes inop->inode.iso_uid = (uid_t)0; 291df8bae1dSRodney W. Grimes inop->inode.iso_gid = (gid_t)0; 292df8bae1dSRodney W. Grimes } 293df8bae1dSRodney W. Grimes if (bp2) 294df8bae1dSRodney W. Grimes brelse(bp2); 295df8bae1dSRodney W. Grimes } 296df8bae1dSRodney W. Grimes 297df8bae1dSRodney W. Grimes /* 298df8bae1dSRodney W. Grimes * Time stamps 299df8bae1dSRodney W. Grimes */ 300df8bae1dSRodney W. Grimes void 301988fa8efSJoerg Wunsch cd9660_deftstamp(isodir,inop,bp,ftype) 302df8bae1dSRodney W. Grimes struct iso_directory_record *isodir; 303df8bae1dSRodney W. Grimes struct iso_node *inop; 304df8bae1dSRodney W. Grimes struct buf *bp; 305988fa8efSJoerg Wunsch enum ISO_FTYPE ftype; 306df8bae1dSRodney W. Grimes { 307df8bae1dSRodney W. Grimes struct buf *bp2 = NULL; 308df8bae1dSRodney W. Grimes struct iso_mnt *imp; 309df8bae1dSRodney W. Grimes struct iso_extended_attributes *ap = NULL; 310df8bae1dSRodney W. Grimes int off; 311df8bae1dSRodney W. Grimes 312df8bae1dSRodney W. Grimes if (!bp 313df8bae1dSRodney W. Grimes && ((imp = inop->i_mnt)->im_flags & ISOFSMNT_EXTATT) 314df8bae1dSRodney W. Grimes && (off = isonum_711(isodir->ext_attr_length))) { 315cec0f20cSPoul-Henning Kamp cd9660_blkatoff(ITOV(inop), (off_t)-(off << imp->im_bshift), NULL, 316996c772fSJohn Dyson &bp2); 317df8bae1dSRodney W. Grimes bp = bp2; 318df8bae1dSRodney W. Grimes } 319df8bae1dSRodney W. Grimes if (bp) { 320996c772fSJohn Dyson ap = (struct iso_extended_attributes *)bp->b_data; 321df8bae1dSRodney W. Grimes 322596d40b9SBruce Evans if (ftype != ISO_FTYPE_HIGH_SIERRA 323596d40b9SBruce Evans && isonum_711(ap->version) == 1) { 324df8bae1dSRodney W. Grimes if (!cd9660_tstamp_conv17(ap->ftime,&inop->inode.iso_atime)) 325df8bae1dSRodney W. Grimes cd9660_tstamp_conv17(ap->ctime,&inop->inode.iso_atime); 326df8bae1dSRodney W. Grimes if (!cd9660_tstamp_conv17(ap->ctime,&inop->inode.iso_ctime)) 327df8bae1dSRodney W. Grimes inop->inode.iso_ctime = inop->inode.iso_atime; 328df8bae1dSRodney W. Grimes if (!cd9660_tstamp_conv17(ap->mtime,&inop->inode.iso_mtime)) 329df8bae1dSRodney W. Grimes inop->inode.iso_mtime = inop->inode.iso_ctime; 330df8bae1dSRodney W. Grimes } else 331df8bae1dSRodney W. Grimes ap = NULL; 332df8bae1dSRodney W. Grimes } 333df8bae1dSRodney W. Grimes if (!ap) { 334988fa8efSJoerg Wunsch cd9660_tstamp_conv7(isodir->date,&inop->inode.iso_ctime,ftype); 335df8bae1dSRodney W. Grimes inop->inode.iso_atime = inop->inode.iso_ctime; 336df8bae1dSRodney W. Grimes inop->inode.iso_mtime = inop->inode.iso_ctime; 337df8bae1dSRodney W. Grimes } 338df8bae1dSRodney W. Grimes if (bp2) 339df8bae1dSRodney W. Grimes brelse(bp2); 340df8bae1dSRodney W. Grimes } 341df8bae1dSRodney W. Grimes 342df8bae1dSRodney W. Grimes int 343988fa8efSJoerg Wunsch cd9660_tstamp_conv7(pi,pu,ftype) 344996c772fSJohn Dyson u_char *pi; 3451dbaf90cSBruce Evans struct timespec *pu; 346988fa8efSJoerg Wunsch enum ISO_FTYPE ftype; 347df8bae1dSRodney W. Grimes { 348df8bae1dSRodney W. Grimes int crtime, days; 349df8bae1dSRodney W. Grimes int y, m, d, hour, minute, second, tz; 350df8bae1dSRodney W. Grimes 351df8bae1dSRodney W. Grimes y = pi[0] + 1900; 352df8bae1dSRodney W. Grimes m = pi[1]; 353df8bae1dSRodney W. Grimes d = pi[2]; 354df8bae1dSRodney W. Grimes hour = pi[3]; 355df8bae1dSRodney W. Grimes minute = pi[4]; 356df8bae1dSRodney W. Grimes second = pi[5]; 357988fa8efSJoerg Wunsch if(ftype != ISO_FTYPE_HIGH_SIERRA) 358df8bae1dSRodney W. Grimes tz = pi[6]; 359988fa8efSJoerg Wunsch else 360988fa8efSJoerg Wunsch /* original high sierra misses timezone data */ 361988fa8efSJoerg Wunsch tz = 0; 362df8bae1dSRodney W. Grimes 363df8bae1dSRodney W. Grimes if (y < 1970) { 36495a1574eSNate Williams pu->tv_sec = 0; 36595a1574eSNate Williams pu->tv_nsec = 0; 366df8bae1dSRodney W. Grimes return 0; 367df8bae1dSRodney W. Grimes } else { 368df8bae1dSRodney W. Grimes #ifdef ORIGINAL 369df8bae1dSRodney W. Grimes /* computes day number relative to Sept. 19th,1989 */ 370df8bae1dSRodney W. Grimes /* don't even *THINK* about changing formula. It works! */ 371df8bae1dSRodney W. Grimes days = 367*(y-1980)-7*(y+(m+9)/12)/4-3*((y+(m-9)/7)/100+1)/4+275*m/9+d-100; 372df8bae1dSRodney W. Grimes #else 373df8bae1dSRodney W. Grimes /* 374df8bae1dSRodney W. Grimes * Changed :-) to make it relative to Jan. 1st, 1970 375df8bae1dSRodney W. Grimes * and to disambiguate negative division 376df8bae1dSRodney W. Grimes */ 377df8bae1dSRodney W. Grimes days = 367*(y-1960)-7*(y+(m+9)/12)/4-3*((y+(m+9)/12-1)/100+1)/4+275*m/9+d-239; 378df8bae1dSRodney W. Grimes #endif 379df8bae1dSRodney W. Grimes crtime = ((((days * 24) + hour) * 60 + minute) * 60) + second; 380df8bae1dSRodney W. Grimes 381df8bae1dSRodney W. Grimes /* timezone offset is unreliable on some disks */ 382df8bae1dSRodney W. Grimes if (-48 <= tz && tz <= 52) 3832d091ecfSBruce Evans crtime -= tz * 15 * 60; 384df8bae1dSRodney W. Grimes } 38595a1574eSNate Williams pu->tv_sec = crtime; 38695a1574eSNate Williams pu->tv_nsec = 0; 387df8bae1dSRodney W. Grimes return 1; 388df8bae1dSRodney W. Grimes } 389df8bae1dSRodney W. Grimes 390996c772fSJohn Dyson static u_int 391df8bae1dSRodney W. Grimes cd9660_chars2ui(begin,len) 392996c772fSJohn Dyson u_char *begin; 393df8bae1dSRodney W. Grimes int len; 394df8bae1dSRodney W. Grimes { 395996c772fSJohn Dyson u_int rc; 396df8bae1dSRodney W. Grimes 397df8bae1dSRodney W. Grimes for (rc = 0; --len >= 0;) { 398df8bae1dSRodney W. Grimes rc *= 10; 399df8bae1dSRodney W. Grimes rc += *begin++ - '0'; 400df8bae1dSRodney W. Grimes } 401df8bae1dSRodney W. Grimes return rc; 402df8bae1dSRodney W. Grimes } 403df8bae1dSRodney W. Grimes 404df8bae1dSRodney W. Grimes int 405df8bae1dSRodney W. Grimes cd9660_tstamp_conv17(pi,pu) 406996c772fSJohn Dyson u_char *pi; 4071dbaf90cSBruce Evans struct timespec *pu; 408df8bae1dSRodney W. Grimes { 409996c772fSJohn Dyson u_char buf[7]; 410df8bae1dSRodney W. Grimes 411df8bae1dSRodney W. Grimes /* year:"0001"-"9999" -> -1900 */ 412df8bae1dSRodney W. Grimes buf[0] = cd9660_chars2ui(pi,4) - 1900; 413df8bae1dSRodney W. Grimes 414df8bae1dSRodney W. Grimes /* month: " 1"-"12" -> 1 - 12 */ 415df8bae1dSRodney W. Grimes buf[1] = cd9660_chars2ui(pi + 4,2); 416df8bae1dSRodney W. Grimes 417df8bae1dSRodney W. Grimes /* day: " 1"-"31" -> 1 - 31 */ 418df8bae1dSRodney W. Grimes buf[2] = cd9660_chars2ui(pi + 6,2); 419df8bae1dSRodney W. Grimes 420df8bae1dSRodney W. Grimes /* hour: " 0"-"23" -> 0 - 23 */ 421df8bae1dSRodney W. Grimes buf[3] = cd9660_chars2ui(pi + 8,2); 422df8bae1dSRodney W. Grimes 423df8bae1dSRodney W. Grimes /* minute:" 0"-"59" -> 0 - 59 */ 424df8bae1dSRodney W. Grimes buf[4] = cd9660_chars2ui(pi + 10,2); 425df8bae1dSRodney W. Grimes 426df8bae1dSRodney W. Grimes /* second:" 0"-"59" -> 0 - 59 */ 427df8bae1dSRodney W. Grimes buf[5] = cd9660_chars2ui(pi + 12,2); 428df8bae1dSRodney W. Grimes 429df8bae1dSRodney W. Grimes /* difference of GMT */ 430df8bae1dSRodney W. Grimes buf[6] = pi[16]; 431df8bae1dSRodney W. Grimes 432988fa8efSJoerg Wunsch return cd9660_tstamp_conv7(buf, pu, ISO_FTYPE_DEFAULT); 433df8bae1dSRodney W. Grimes } 434df8bae1dSRodney W. Grimes 435996c772fSJohn Dyson ino_t 436996c772fSJohn Dyson isodirino(isodir, imp) 437df8bae1dSRodney W. Grimes struct iso_directory_record *isodir; 438df8bae1dSRodney W. Grimes struct iso_mnt *imp; 439df8bae1dSRodney W. Grimes { 440996c772fSJohn Dyson ino_t ino; 441996c772fSJohn Dyson 442996c772fSJohn Dyson ino = (isonum_733(isodir->extent) + isonum_711(isodir->ext_attr_length)) 443996c772fSJohn Dyson << imp->im_bshift; 444996c772fSJohn Dyson return (ino); 445df8bae1dSRodney W. Grimes } 446