diff --git a/sbin/mount_cd9660/mount_cd9660.8 b/sbin/mount_cd9660/mount_cd9660.8 index cd6f7a19f6eb..d2cdd2f3ef20 100644 --- a/sbin/mount_cd9660/mount_cd9660.8 +++ b/sbin/mount_cd9660/mount_cd9660.8 @@ -1,159 +1,194 @@ .\" Copyright (c) 1993, 1994 .\" The Regents of the University of California. All rights reserved. .\" All rights reserved. .\" .\" This code is derived from software donated to Berkeley by .\" Christopher G. Demetriou. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd August 11, 2018 +.Dd January 2, 2024 .Dt MOUNT_CD9660 8 .Os .Sh NAME .Nm mount_cd9660 .Nd mount an ISO-9660 file system .Sh SYNOPSIS .Nm .Op Fl begjrv .Op Fl C Ar charset +.Op Fl G Ar gid +.Op Fl m Ar mask +.Op Fl M Ar mask .Op Fl o Ar options .Op Fl s Ar startsector +.Op Fl U Ar uid .Ar special node .Sh DESCRIPTION The .Nm utility attaches the ISO-9660 file system residing on the device .Pa special to the global file system namespace at the location indicated by .Pa node . This command is normally executed by .Xr mount 8 at boot time. .Pp The options are as follows: .Bl -tag -width indent .It Fl b Relax checking for Supplementary Volume Descriptor Flags field which is set to a wrong value on some Joliet formatted disks. .It Fl e Enable the use of extended attributes. .It Fl g Do not strip version numbers on files. (By default, if there are files with different version numbers on the disk, only the last one will be listed.) In either case, files may be opened without explicitly stating a version number. +.It Fl G Ar group +Set the group of the files in the file system to +.Ar group . +The default gid on non-Rockridge volumes is zero. +.It Fl U Ar user +Set the owner of the files in the file system to +.Ar user . +The default uid on non-Rockridge volumes is zero. +.It Fl m Ar mask +Specify the maximum file permissions for files +in the file system. +(For example, a +.Ar mask +of +.Li 755 +specifies that, by default, the owner should have +read, write, and execute permissions for files, but +others should only have read and execute permissions). +See +.Xr chmod 1 +for more information about octal file modes. +Only the nine low-order bits of +.Ar mask +are used. +The default +.Ar mask +on non-Rockridge volumes is 755. +.It Fl M Ar mask +Specify the maximum file permissions for directories +in the file system. +See the previous option's description for details. .It Fl j Do not use any Joliet extensions included in the file system. .It Fl o Options are specified with a .Fl o flag followed by a comma separated string of options. See the .Xr mount 8 man page for possible options and their meanings. The following cd9660 specific options are available: .Pp .Bl -tag -width "brokenjoliet" -compact .It Cm extatt Same as .Fl e . .It Cm gens Same as .Fl g . .It Cm nojoliet Same as .Fl j . .It Cm norrip Same as .Fl r . .It Cm brokenjoliet Same as .Fl b . .El .It Fl r Do not use any Rockridge extensions included in the file system. .It Fl s Ar startsector Start the file system at .Ar startsector . Normally, if the underlying device is a CD-ROM drive, .Nm will try to figure out the last track from the CD-ROM containing data, and start the file system there. If the device is not a CD-ROM, or the table of contents cannot be examined, the file system will be started at sector 0. This option can be used to override the behaviour. Note that .Ar startsector is measured in CD-ROM blocks, with 2048 bytes each. This is the same as for example the .Cm info command of .Xr cdcontrol 1 is printing. It is possible to mount an arbitrary session of a multi-session CD by specifying the correct .Ar startsector here. .It Fl C Ar charset Specify local .Ar charset to convert Unicode file names when using Joliet extensions. .It Fl v Be verbose about the starting sector decisions made. .El .Sh EXAMPLES The following command can be used to mount a Kodak Photo-CD: .Pp .Dl "mount_cd9660 -o rw -v -s 0 /dev/cd0 /cdrom" .Sh SEE ALSO .Xr cdcontrol 1 , .Xr mount 2 , .Xr unmount 2 , .Xr cd9660 5 , .Xr fstab 5 , .Xr mdconfig 8 , .Xr mount 8 .Sh HISTORY The .Nm utility first appeared in .Bx 4.4 . .Pp The Unicode conversion routine was added by .An Ryuichiro Imura Aq Mt imura@ryu16.org in 2003. .Sh BUGS POSIX device node mapping is currently not supported. .Pp Version numbers are not stripped if Rockridge extensions are in use. In this case, accessing files that do not have Rockridge names without version numbers gets the one with the lowest version number and not the one with the highest. .Pp There is no ECMA support. diff --git a/sbin/mount_cd9660/mount_cd9660.c b/sbin/mount_cd9660/mount_cd9660.c index ab6da7271c17..d8d64eb5a656 100644 --- a/sbin/mount_cd9660/mount_cd9660.c +++ b/sbin/mount_cd9660/mount_cd9660.c @@ -1,256 +1,329 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include +#include #include #include +#include +#include #include #include #include #include #include #include "mntopts.h" static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_UPDATE, MOPT_END }; +static gid_t a_gid(const char *); +static uid_t a_uid(const char *); +static mode_t a_mask(const char *); static int get_ssector(const char *dev); static int set_charset(struct iovec **, int *iovlen, const char *); void usage(void); int main(int argc, char **argv) { struct iovec *iov; int iovlen; int ch, mntflags; char *dev, *dir, *p, *val, mntpath[MAXPATHLEN]; int verbose; int ssector; /* starting sector, 0 for 1st session */ char fstype[] = "cd9660"; iov = NULL; iovlen = 0; mntflags = verbose = 0; ssector = -1; - while ((ch = getopt(argc, argv, "begjo:rs:vC:")) != -1) + while ((ch = getopt(argc, argv, "begG:jm:M:o:rs:U:vC:")) != -1) switch (ch) { case 'b': build_iovec(&iov, &iovlen, "brokenjoliet", NULL, (size_t)-1); break; case 'e': build_iovec(&iov, &iovlen, "extatt", NULL, (size_t)-1); break; case 'g': build_iovec(&iov, &iovlen, "gens", NULL, (size_t)-1); break; + case 'G': + build_iovec_argf(&iov, &iovlen, "gid", "%d", a_gid(optarg)); + break; + case 'm': + build_iovec_argf(&iov, &iovlen, "mask", "%u", a_mask(optarg)); + break; + case 'M': + build_iovec_argf(&iov, &iovlen, "dirmask", "%u", a_mask(optarg)); + break; case 'j': build_iovec(&iov, &iovlen, "nojoliet", NULL, (size_t)-1); break; case 'o': getmntopts(optarg, mopts, &mntflags, NULL); p = strchr(optarg, '='); val = NULL; if (p != NULL) { *p = '\0'; val = p + 1; } build_iovec(&iov, &iovlen, optarg, val, (size_t)-1); break; case 'r': build_iovec(&iov, &iovlen, "norrip", NULL, (size_t)-1); break; case 's': ssector = atoi(optarg); break; + case 'U': + build_iovec_argf(&iov, &iovlen, "uid", "%d", a_uid(optarg)); + break; case 'v': verbose++; break; case 'C': if (set_charset(&iov, &iovlen, optarg) == -1) err(EX_OSERR, "cd9660_iconv"); build_iovec(&iov, &iovlen, "kiconv", NULL, (size_t)-1); break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 2) usage(); dev = argv[0]; dir = argv[1]; /* * Resolve the mountpoint with realpath(3) and remove unnecessary * slashes from the devicename if there are any. */ if (checkpath(dir, mntpath) != 0) err(1, "%s", mntpath); (void)rmslashes(dev, dev); if (ssector == -1) { /* * The start of the session has not been specified on * the command line. If we can successfully read the * TOC of a CD-ROM, use the last data track we find. * Otherwise, just use 0, in order to mount the very * first session. This is compatible with the * historic behaviour of mount_cd9660(8). If the user * has specified -s above, we don't get here * and leave the user's will. */ if ((ssector = get_ssector(dev)) == -1) { if (verbose) printf("could not determine starting sector, " "using very first session\n"); ssector = 0; } else if (verbose) printf("using starting sector %d\n", ssector); } mntflags |= MNT_RDONLY; build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1); build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1); build_iovec(&iov, &iovlen, "from", dev, (size_t)-1); build_iovec_argf(&iov, &iovlen, "ssector", "%d", ssector); if (nmount(iov, iovlen, mntflags) < 0) err(1, "%s", dev); exit(0); } void usage(void) { (void)fprintf(stderr, -"usage: mount_cd9660 [-begjrv] [-C charset] [-o options] [-s startsector]\n" -" special node\n"); +"usage: mount_cd9660 [-begjrv] [-C charset] [-G gid] [-m mask] [-M mask]\n" +" [-o options] [-U uid] [-s startsector] special node\n"); exit(EX_USAGE); } static int get_ssector(const char *dev) { struct ioc_toc_header h; struct ioc_read_toc_entry t; struct cd_toc_entry toc_buffer[100]; int fd, ntocentries, i; if ((fd = open(dev, O_RDONLY)) == -1) return -1; if (ioctl(fd, CDIOREADTOCHEADER, &h) == -1) { close(fd); return -1; } ntocentries = h.ending_track - h.starting_track + 1; if (ntocentries > 100) { /* unreasonable, only 100 allowed */ close(fd); return -1; } t.address_format = CD_LBA_FORMAT; t.starting_track = 0; t.data_len = ntocentries * sizeof(struct cd_toc_entry); t.data = toc_buffer; if (ioctl(fd, CDIOREADTOCENTRYS, (char *) &t) == -1) { close(fd); return -1; } close(fd); for (i = ntocentries - 1; i >= 0; i--) if ((toc_buffer[i].control & 4) != 0) /* found a data track */ break; if (i < 0) return -1; return ntohl(toc_buffer[i].addr.lba); } static int set_charset(struct iovec **iov, int *iovlen, const char *localcs) { int error; char *cs_disk; /* disk charset for Joliet cs conversion */ char *cs_local; /* local charset for Joliet cs conversion */ cs_disk = NULL; cs_local = NULL; if (modfind("cd9660_iconv") < 0) if (kldload("cd9660_iconv") < 0 || modfind("cd9660_iconv") < 0) { warnx( "cannot find or load \"cd9660_iconv\" kernel module"); return (-1); } if ((cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL) return (-1); if ((cs_local = malloc(ICONV_CSNMAXLEN)) == NULL) { free(cs_disk); return (-1); } strncpy(cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN); strncpy(cs_local, kiconv_quirkcs(localcs, KICONV_VENDOR_MICSFT), ICONV_CSNMAXLEN); error = kiconv_add_xlat16_cspairs(cs_disk, cs_local); if (error) return (-1); build_iovec(iov, iovlen, "cs_disk", cs_disk, (size_t)-1); build_iovec(iov, iovlen, "cs_local", cs_local, (size_t)-1); return (0); } + +static gid_t +a_gid(const char *s) +{ + struct group *gr; + const char *gname; + gid_t gid; + + if ((gr = getgrnam(s)) != NULL) + gid = gr->gr_gid; + else { + for (gname = s; *s && isdigit(*s); ++s); + if (!*s) + gid = atoi(gname); + else + errx(EX_NOUSER, "unknown group id: %s", gname); + } + return (gid); +} + +static uid_t +a_uid(const char *s) +{ + struct passwd *pw; + const char *uname; + uid_t uid; + + if ((pw = getpwnam(s)) != NULL) + uid = pw->pw_uid; + else { + for (uname = s; *s && isdigit(*s); ++s); + if (!*s) + uid = atoi(uname); + else + errx(EX_NOUSER, "unknown user id: %s", uname); + } + return (uid); +} + +static mode_t +a_mask(const char *s) +{ + int done, rv; + char *ep; + + done = 0; + rv = -1; + if (*s >= '0' && *s <= '7') { + done = 1; + rv = strtol(optarg, &ep, 8); + } + if (!done || rv < 0 || *ep) + errx(EX_USAGE, "invalid file mode: %s", s); + return (rv); +} diff --git a/sys/fs/cd9660/cd9660_mount.h b/sys/fs/cd9660/cd9660_mount.h index 88075dc2788b..4f2d9538a10a 100644 --- a/sys/fs/cd9660/cd9660_mount.h +++ b/sys/fs/cd9660/cd9660_mount.h @@ -1,53 +1,60 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1995 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Arguments to mount ISO 9660 filesystems. */ struct iso_args { char *fspec; /* block special device to mount */ struct oexport_args export; /* network export info */ + uid_t uid; /* uid that owns ISO-9660 files */ + gid_t gid; /* gid that owns ISO-9660 files */ + mode_t fmask; /* file mask to be applied for files */ + mode_t dmask; /* file mask to be applied for directories */ int flags; /* mounting flags, see below */ int ssector; /* starting sector, 0 for 1st session */ char *cs_disk; /* disk charset for Joliet cs conversion */ char *cs_local; /* local charset for Joliet cs conversion */ }; #define ISOFSMNT_NORRIP 0x00000001 /* disable Rock Ridge Ext.*/ #define ISOFSMNT_GENS 0x00000002 /* enable generation numbers */ #define ISOFSMNT_EXTATT 0x00000004 /* enable extended attributes */ #define ISOFSMNT_NOJOLIET 0x00000008 /* disable Joliet Ext.*/ #define ISOFSMNT_BROKENJOLIET 0x00000010/* allow broken Joliet disks */ #define ISOFSMNT_KICONV 0x00000020 /* Use libiconv to convert chars */ + +#define ISOFSMNT_UID 0x00000100 /* override uid */ +#define ISOFSMNT_GID 0x00000200 /* override gid */ diff --git a/sys/fs/cd9660/cd9660_vfsops.c b/sys/fs/cd9660/cd9660_vfsops.c index ee0b68714c2a..f067453d3458 100644 --- a/sys/fs/cd9660/cd9660_vfsops.c +++ b/sys/fs/cd9660/cd9660_vfsops.c @@ -1,827 +1,850 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include MALLOC_DEFINE(M_ISOFSMNT, "isofs_mount", "ISOFS mount structure"); MALLOC_DEFINE(M_ISOFSNODE, "isofs_node", "ISOFS vnode private part"); struct iconv_functions *cd9660_iconv = NULL; static vfs_mount_t cd9660_mount; static vfs_cmount_t cd9660_cmount; static vfs_unmount_t cd9660_unmount; static vfs_root_t cd9660_root; static vfs_statfs_t cd9660_statfs; static vfs_vget_t cd9660_vget; static vfs_fhtovp_t cd9660_fhtovp; static struct vfsops cd9660_vfsops = { .vfs_fhtovp = cd9660_fhtovp, .vfs_mount = cd9660_mount, .vfs_cmount = cd9660_cmount, .vfs_root = cd9660_root, .vfs_statfs = cd9660_statfs, .vfs_unmount = cd9660_unmount, .vfs_vget = cd9660_vget, }; VFS_SET(cd9660_vfsops, cd9660, VFCF_READONLY); MODULE_VERSION(cd9660, 1); static int cd9660_vfs_hash_cmp(struct vnode *vp, void *pino); static int iso_mountfs(struct vnode *devvp, struct mount *mp); /* * VFS Operations. */ static int cd9660_cmount(struct mntarg *ma, void *data, uint64_t flags) { struct iso_args args; int error; error = copyin(data, &args, sizeof args); if (error) return (error); ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN); ma = mount_arg(ma, "export", &args.export, sizeof(args.export)); + if (args.flags & ISOFSMNT_UID) + ma = mount_argf(ma, "uid", "%d", args.uid); + if (args.flags & ISOFSMNT_GID) + ma = mount_argf(ma, "gid", "%d", args.gid); + ma = mount_argf(ma, "mask", "%d", args.fmask); + ma = mount_argf(ma, "dirmask", "%d", args.dmask); ma = mount_argsu(ma, "cs_disk", args.cs_disk, 64); ma = mount_argsu(ma, "cs_local", args.cs_local, 64); ma = mount_argf(ma, "ssector", "%u", args.ssector); ma = mount_argb(ma, !(args.flags & ISOFSMNT_NORRIP), "norrip"); ma = mount_argb(ma, args.flags & ISOFSMNT_GENS, "nogens"); ma = mount_argb(ma, args.flags & ISOFSMNT_EXTATT, "noextatt"); ma = mount_argb(ma, !(args.flags & ISOFSMNT_NOJOLIET), "nojoliet"); ma = mount_argb(ma, args.flags & ISOFSMNT_BROKENJOLIET, "nobrokenjoliet"); ma = mount_argb(ma, args.flags & ISOFSMNT_KICONV, "nokiconv"); error = kernel_mount(ma, flags); return (error); } static int cd9660_mount(struct mount *mp) { struct vnode *devvp; struct thread *td; char *fspec; int error; accmode_t accmode; struct nameidata ndp; struct iso_mnt *imp = NULL; td = curthread; /* * Unconditionally mount as read-only. */ MNT_ILOCK(mp); mp->mnt_flag |= MNT_RDONLY; MNT_IUNLOCK(mp); fspec = vfs_getopts(mp->mnt_optnew, "from", &error); if (error) return (error); imp = VFSTOISOFS(mp); if (mp->mnt_flag & MNT_UPDATE) { if (vfs_flagopt(mp->mnt_optnew, "export", NULL, 0)) return (0); } /* * Not an update, or updating the name: look up the name * and verify that it refers to a sensible block device. */ NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, fspec); if ((error = namei(&ndp))) return (error); NDFREE_PNBUF(&ndp); devvp = ndp.ni_vp; if (!vn_isdisk_error(devvp, &error)) { vput(devvp); return (error); } /* * Verify that user has necessary permissions on the device, * or has superuser abilities */ accmode = VREAD; error = VOP_ACCESS(devvp, accmode, td->td_ucred, td); if (error) error = priv_check(td, PRIV_VFS_MOUNT_PERM); if (error) { vput(devvp); return (error); } if ((mp->mnt_flag & MNT_UPDATE) == 0) { error = iso_mountfs(devvp, mp); if (error) vrele(devvp); } else { if (devvp != imp->im_devvp) error = EINVAL; /* needs translation */ vput(devvp); } if (error) return (error); vfs_mountedfrom(mp, fspec); return (0); } /* * Common code for mount and mountroot */ static int iso_mountfs(struct vnode *devvp, struct mount *mp) { struct iso_mnt *isomp = NULL; struct buf *bp = NULL; struct buf *pribp = NULL, *supbp = NULL; struct cdev *dev; int error = EINVAL; int high_sierra = 0; int iso_bsize; int iso_blknum; int joliet_level; int isverified = 0; struct iso_volume_descriptor *vdp = NULL; struct iso_primary_descriptor *pri = NULL; struct iso_sierra_primary_descriptor *pri_sierra = NULL; struct iso_supplementary_descriptor *sup = NULL; struct iso_directory_record *rootp; int logical_block_size, ssector; struct g_consumer *cp; struct bufobj *bo; char *cs_local, *cs_disk; + int v; dev = devvp->v_rdev; dev_ref(dev); g_topology_lock(); error = g_vfs_open(devvp, &cp, "cd9660", 0); if (error == 0) g_getattr("MNT::verified", cp, &isverified); g_topology_unlock(); VOP_UNLOCK(devvp); if (error) goto out; if (devvp->v_rdev->si_iosize_max != 0) mp->mnt_iosize_max = devvp->v_rdev->si_iosize_max; if (mp->mnt_iosize_max > maxphys) mp->mnt_iosize_max = maxphys; bo = &devvp->v_bufobj; /* This is the "logical sector size". The standard says this * should be 2048 or the physical sector size on the device, * whichever is greater. */ if ((ISO_DEFAULT_BLOCK_SIZE % cp->provider->sectorsize) != 0) { error = EINVAL; goto out; } iso_bsize = cp->provider->sectorsize; joliet_level = 0; if (1 != vfs_scanopt(mp->mnt_optnew, "ssector", "%d", &ssector)) ssector = 0; for (iso_blknum = 16 + ssector; iso_blknum < 100 + ssector; iso_blknum++) { if ((error = bread(devvp, iso_blknum * btodb(ISO_DEFAULT_BLOCK_SIZE), iso_bsize, NOCRED, &bp)) != 0) goto out; vdp = (struct iso_volume_descriptor *)bp->b_data; if (bcmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) != 0) { if (bcmp (vdp->id_sierra, ISO_SIERRA_ID, sizeof vdp->id_sierra) != 0) { error = EINVAL; goto out; } else high_sierra = 1; } switch (isonum_711 (high_sierra? vdp->type_sierra: vdp->type)){ case ISO_VD_PRIMARY: if (pribp == NULL) { pribp = bp; bp = NULL; pri = (struct iso_primary_descriptor *)vdp; pri_sierra = (struct iso_sierra_primary_descriptor *)vdp; } break; case ISO_VD_SUPPLEMENTARY: if (supbp == NULL) { supbp = bp; bp = NULL; sup = (struct iso_supplementary_descriptor *)vdp; if (!vfs_flagopt(mp->mnt_optnew, "nojoliet", NULL, 0)) { if (bcmp(sup->escape, "%/@", 3) == 0) joliet_level = 1; if (bcmp(sup->escape, "%/C", 3) == 0) joliet_level = 2; if (bcmp(sup->escape, "%/E", 3) == 0) joliet_level = 3; if ((isonum_711 (sup->flags) & 1) && !vfs_flagopt(mp->mnt_optnew, "brokenjoliet", NULL, 0)) joliet_level = 0; } } break; case ISO_VD_END: goto vd_end; default: break; } if (bp != NULL) { brelse(bp); bp = NULL; } } vd_end: if (bp != NULL) { brelse(bp); bp = NULL; } if (pri == NULL) { error = EINVAL; goto out; } logical_block_size = isonum_723 (high_sierra? pri_sierra->logical_block_size: pri->logical_block_size); if (logical_block_size < DEV_BSIZE || logical_block_size > MAXBSIZE || (logical_block_size & (logical_block_size - 1)) != 0) { error = EINVAL; goto out; } if (logical_block_size < cp->provider->sectorsize) { printf("cd9660: Unsupported logical block size %u\n", logical_block_size); error = EINVAL; goto out; } rootp = (struct iso_directory_record *) (high_sierra? pri_sierra->root_directory_record: pri->root_directory_record); isomp = malloc(sizeof *isomp, M_ISOFSMNT, M_WAITOK | M_ZERO); isomp->im_cp = cp; isomp->im_bo = bo; isomp->logical_block_size = logical_block_size; isomp->volume_space_size = isonum_733 (high_sierra? pri_sierra->volume_space_size: pri->volume_space_size); isomp->joliet_level = 0; /* * Since an ISO9660 multi-session CD can also access previous * sessions, we have to include them into the space consider- * ations. This doesn't yield a very accurate number since * parts of the old sessions might be inaccessible now, but we * can't do much better. This is also important for the NFS * filehandle validation. */ isomp->volume_space_size += ssector; memcpy(isomp->root, rootp, sizeof isomp->root); isomp->root_extent = isonum_733 (rootp->extent); isomp->root_size = isonum_733 (rootp->size); isomp->im_bmask = logical_block_size - 1; isomp->im_bshift = ffs(logical_block_size) - 1; pribp->b_flags |= B_AGE; brelse(pribp); pribp = NULL; rootp = NULL; pri = NULL; pri_sierra = NULL; mp->mnt_data = isomp; mp->mnt_stat.f_fsid.val[0] = dev2udev(dev); mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum; MNT_ILOCK(mp); if (isverified) mp->mnt_flag |= MNT_VERIFIED; mp->mnt_flag |= MNT_LOCAL; mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_EXTENDED_SHARED; MNT_IUNLOCK(mp); isomp->im_mountp = mp; isomp->im_dev = dev; isomp->im_devvp = devvp; + isomp->im_fmask = isomp->im_dmask = ACCESSPERMS; vfs_flagopt(mp->mnt_optnew, "norrip", &isomp->im_flags, ISOFSMNT_NORRIP); vfs_flagopt(mp->mnt_optnew, "gens", &isomp->im_flags, ISOFSMNT_GENS); vfs_flagopt(mp->mnt_optnew, "extatt", &isomp->im_flags, ISOFSMNT_EXTATT); vfs_flagopt(mp->mnt_optnew, "nojoliet", &isomp->im_flags, ISOFSMNT_NOJOLIET); vfs_flagopt(mp->mnt_optnew, "kiconv", &isomp->im_flags, ISOFSMNT_KICONV); + if (vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v) == 1) { + isomp->im_flags |= ISOFSMNT_UID; + isomp->im_uid = v; + } + if (vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v) == 1) { + isomp->im_flags |= ISOFSMNT_GID; + isomp->im_gid = v; + } + if (vfs_scanopt(mp->mnt_optnew, "mask", "%d", &v) == 1) { + isomp->im_fmask &= v; + } + if (vfs_scanopt(mp->mnt_optnew, "dirmask", "%d", &v) == 1) { + isomp->im_dmask &= v; + } + /* Check the Rock Ridge Extension support */ if (!(isomp->im_flags & ISOFSMNT_NORRIP)) { if ((error = bread(isomp->im_devvp, (isomp->root_extent + isonum_711(((struct iso_directory_record *)isomp->root)-> ext_attr_length)) << (isomp->im_bshift - DEV_BSHIFT), isomp->logical_block_size, NOCRED, &bp)) != 0) goto out; rootp = (struct iso_directory_record *)bp->b_data; if ((isomp->rr_skip = cd9660_rrip_offset(rootp,isomp)) < 0) { isomp->im_flags |= ISOFSMNT_NORRIP; } else { isomp->im_flags &= ~ISOFSMNT_GENS; } /* * The contents are valid, * but they will get reread as part of another vnode, so... */ bp->b_flags |= B_AGE; brelse(bp); bp = NULL; rootp = NULL; } if (isomp->im_flags & ISOFSMNT_KICONV && cd9660_iconv) { cs_local = vfs_getopts(mp->mnt_optnew, "cs_local", &error); if (error) goto out; cs_disk = vfs_getopts(mp->mnt_optnew, "cs_disk", &error); if (error) goto out; cd9660_iconv->open(cs_local, cs_disk, &isomp->im_d2l); cd9660_iconv->open(cs_disk, cs_local, &isomp->im_l2d); } else { isomp->im_d2l = NULL; isomp->im_l2d = NULL; } if (high_sierra) { /* this effectively ignores all the mount flags */ if (bootverbose) log(LOG_INFO, "cd9660: High Sierra Format\n"); isomp->iso_ftype = ISO_FTYPE_HIGH_SIERRA; } else switch (isomp->im_flags&(ISOFSMNT_NORRIP|ISOFSMNT_GENS)) { default: isomp->iso_ftype = ISO_FTYPE_DEFAULT; break; case ISOFSMNT_GENS|ISOFSMNT_NORRIP: isomp->iso_ftype = ISO_FTYPE_9660; break; case 0: if (bootverbose) log(LOG_INFO, "cd9660: RockRidge Extension\n"); isomp->iso_ftype = ISO_FTYPE_RRIP; break; } /* Decide whether to use the Joliet descriptor */ if (isomp->iso_ftype != ISO_FTYPE_RRIP && joliet_level) { if (bootverbose) log(LOG_INFO, "cd9660: Joliet Extension (Level %d)\n", joliet_level); rootp = (struct iso_directory_record *) sup->root_directory_record; memcpy(isomp->root, rootp, sizeof isomp->root); isomp->root_extent = isonum_733 (rootp->extent); isomp->root_size = isonum_733 (rootp->size); isomp->joliet_level = joliet_level; supbp->b_flags |= B_AGE; } if (supbp) { brelse(supbp); supbp = NULL; sup = NULL; } return 0; out: if (bp != NULL) brelse(bp); if (pribp != NULL) brelse(pribp); if (supbp != NULL) brelse(supbp); if (cp != NULL) { g_topology_lock(); g_vfs_close(cp); g_topology_unlock(); } if (isomp) { free(isomp, M_ISOFSMNT); mp->mnt_data = NULL; } dev_rel(dev); return error; } /* * unmount system call */ static int cd9660_unmount(struct mount *mp, int mntflags) { struct iso_mnt *isomp; int error, flags = 0; if (mntflags & MNT_FORCE) flags |= FORCECLOSE; if ((error = vflush(mp, 0, flags, curthread))) return (error); isomp = VFSTOISOFS(mp); if (isomp->im_flags & ISOFSMNT_KICONV && cd9660_iconv) { if (isomp->im_d2l) cd9660_iconv->close(isomp->im_d2l); if (isomp->im_l2d) cd9660_iconv->close(isomp->im_l2d); } g_topology_lock(); g_vfs_close(isomp->im_cp); g_topology_unlock(); vrele(isomp->im_devvp); dev_rel(isomp->im_dev); free(isomp, M_ISOFSMNT); mp->mnt_data = NULL; return (error); } /* * Return root of a filesystem */ static int cd9660_root(struct mount *mp, int flags, struct vnode **vpp) { struct iso_mnt *imp = VFSTOISOFS(mp); struct iso_directory_record *dp = (struct iso_directory_record *)imp->root; cd_ino_t ino = isodirino(dp, imp); /* * With RRIP we must use the `.' entry of the root directory. * Simply tell vget, that it's a relocated directory. */ return (cd9660_vget_internal(mp, ino, flags, vpp, imp->iso_ftype == ISO_FTYPE_RRIP, dp)); } /* * Get filesystem statistics. */ static int cd9660_statfs(struct mount *mp, struct statfs *sbp) { struct iso_mnt *isomp; isomp = VFSTOISOFS(mp); sbp->f_bsize = isomp->logical_block_size; sbp->f_iosize = sbp->f_bsize; /* XXX */ sbp->f_blocks = isomp->volume_space_size; sbp->f_bfree = 0; /* total free blocks */ sbp->f_bavail = 0; /* blocks free for non superuser */ sbp->f_files = 0; /* total files */ sbp->f_ffree = 0; /* free file nodes */ return 0; } /* * File handle to vnode * * Have to be really careful about stale file handles: * - check that the inode number is in range * - call iget() to get the locked inode * - check for an unallocated inode (i_mode == 0) * - check that the generation number matches */ /* ARGSUSED */ static int cd9660_fhtovp(struct mount *mp, struct fid *fhp, int flags, struct vnode **vpp) { struct ifid ifh; struct iso_node *ip; struct vnode *nvp; int error; memcpy(&ifh, fhp, sizeof(ifh)); #ifdef ISOFS_DBG printf("fhtovp: ino %d, start %ld\n", ifh.ifid_ino, ifh.ifid_start); #endif if ((error = VFS_VGET(mp, ifh.ifid_ino, LK_EXCLUSIVE, &nvp)) != 0) { *vpp = NULLVP; return (error); } ip = VTOI(nvp); if (ip->inode.iso_mode == 0) { vput(nvp); *vpp = NULLVP; return (ESTALE); } *vpp = nvp; vnode_create_vobject(*vpp, ip->i_size, curthread); return (0); } /* * Conform to standard VFS interface; can't vget arbitrary inodes beyond 4GB * into media with current inode scheme and 32-bit ino_t. This shouldn't be * needed for anything other than nfsd, and who exports a mounted DVD over NFS? */ static int cd9660_vget(struct mount *mp, ino_t ino, int flags, struct vnode **vpp) { /* * XXXX * It would be nice if we didn't always set the `relocated' flag * and force the extra read, but I don't want to think about fixing * that right now. */ return (cd9660_vget_internal(mp, ino, flags, vpp, #if 0 VFSTOISOFS(mp)->iso_ftype == ISO_FTYPE_RRIP, #else 0, #endif (struct iso_directory_record *)0)); } /* Use special comparator for full 64-bit ino comparison. */ static int cd9660_vfs_hash_cmp(struct vnode *vp, void *pino) { struct iso_node *ip; cd_ino_t ino; ip = VTOI(vp); ino = *(cd_ino_t *)pino; return (ip->i_number != ino); } int cd9660_vget_internal(struct mount *mp, cd_ino_t ino, int flags, struct vnode **vpp, int relocated, struct iso_directory_record *isodir) { struct iso_mnt *imp; struct iso_node *ip; struct buf *bp; struct vnode *vp; int error; struct thread *td; td = curthread; error = vfs_hash_get(mp, ino, flags, td, vpp, cd9660_vfs_hash_cmp, &ino); if (error || *vpp != NULL) return (error); /* * We must promote to an exclusive lock for vnode creation. This * can happen if lookup is passed LOCKSHARED. */ if ((flags & LK_TYPE_MASK) == LK_SHARED) { flags &= ~LK_TYPE_MASK; flags |= LK_EXCLUSIVE; } /* * We do not lock vnode creation as it is believed to be too * expensive for such rare case as simultaneous creation of vnode * for same ino by different processes. We just allow them to race * and check later to decide who wins. Let the race begin! */ imp = VFSTOISOFS(mp); /* Allocate a new vnode/iso_node. */ if ((error = getnewvnode("isofs", mp, &cd9660_vnodeops, &vp)) != 0) { *vpp = NULLVP; return (error); } ip = malloc(sizeof(struct iso_node), M_ISOFSNODE, M_WAITOK | M_ZERO); vp->v_data = ip; ip->i_vnode = vp; ip->i_number = ino; lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL); error = insmntque(vp, mp); if (error != 0) { free(ip, M_ISOFSNODE); *vpp = NULLVP; return (error); } error = vfs_hash_insert(vp, ino, flags, td, vpp, cd9660_vfs_hash_cmp, &ino); if (error || *vpp != NULL) return (error); if (isodir == NULL) { int lbn, off; lbn = lblkno(imp, ino); if (lbn >= imp->volume_space_size) { vput(vp); printf("fhtovp: lbn exceed volume space %d\n", lbn); return (ESTALE); } off = blkoff(imp, ino); if (off + ISO_DIRECTORY_RECORD_SIZE > imp->logical_block_size) { vput(vp); printf("fhtovp: crosses block boundary %d\n", off + ISO_DIRECTORY_RECORD_SIZE); return (ESTALE); } error = bread(imp->im_devvp, lbn << (imp->im_bshift - DEV_BSHIFT), imp->logical_block_size, NOCRED, &bp); if (error) { vput(vp); printf("fhtovp: bread error %d\n",error); return (error); } isodir = (struct iso_directory_record *)(bp->b_data + off); if (off + isonum_711(isodir->length) > imp->logical_block_size) { vput(vp); brelse(bp); printf("fhtovp: directory crosses block boundary %d[off=%d/len=%d]\n", off +isonum_711(isodir->length), off, isonum_711(isodir->length)); return (ESTALE); } #if 0 if (isonum_733(isodir->extent) + isonum_711(isodir->ext_attr_length) != ifhp->ifid_start) { brelse(bp); printf("fhtovp: file start miss %d vs %d\n", isonum_733(isodir->extent) + isonum_711(isodir->ext_attr_length), ifhp->ifid_start); return (ESTALE); } #endif } else bp = NULL; ip->i_mnt = imp; if (relocated) { /* * On relocated directories we must * read the `.' entry out of a dir. */ ip->iso_start = ino >> imp->im_bshift; if (bp != NULL) brelse(bp); if ((error = cd9660_blkatoff(vp, (off_t)0, NULL, &bp)) != 0) { vput(vp); return (error); } isodir = (struct iso_directory_record *)bp->b_data; } ip->iso_extent = isonum_733(isodir->extent); ip->i_size = isonum_733(isodir->size); ip->iso_start = isonum_711(isodir->ext_attr_length) + ip->iso_extent; /* * Setup time stamp, attribute */ vp->v_type = VNON; switch (imp->iso_ftype) { default: /* ISO_FTYPE_9660 */ { struct buf *bp2; int off; if ((imp->im_flags & ISOFSMNT_EXTATT) && (off = isonum_711(isodir->ext_attr_length))) cd9660_blkatoff(vp, (off_t)-(off << imp->im_bshift), NULL, &bp2); else bp2 = NULL; cd9660_defattr(isodir, ip, bp2, ISO_FTYPE_9660); cd9660_deftstamp(isodir, ip, bp2, ISO_FTYPE_9660); if (bp2) brelse(bp2); break; } case ISO_FTYPE_RRIP: cd9660_rrip_analyze(isodir, ip, imp); break; } brelse(bp); /* * Initialize the associated vnode */ switch (vp->v_type = IFTOVT(ip->inode.iso_mode)) { case VFIFO: vp->v_op = &cd9660_fifoops; break; default: VN_LOCK_ASHARE(vp); break; } if (ip->iso_extent == imp->root_extent) vp->v_vflag |= VV_ROOT; /* * XXX need generation number? */ vn_set_state(vp, VSTATE_CONSTRUCTED); *vpp = vp; return (0); } diff --git a/sys/fs/cd9660/cd9660_vnops.c b/sys/fs/cd9660/cd9660_vnops.c index 1b11da80431b..33ca58472490 100644 --- a/sys/fs/cd9660/cd9660_vnops.c +++ b/sys/fs/cd9660/cd9660_vnops.c @@ -1,851 +1,867 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include +#include #include static vop_setattr_t cd9660_setattr; static vop_open_t cd9660_open; static vop_access_t cd9660_access; static vop_getattr_t cd9660_getattr; static vop_ioctl_t cd9660_ioctl; static vop_pathconf_t cd9660_pathconf; static vop_read_t cd9660_read; struct isoreaddir; static int iso_uiodir(struct isoreaddir *idp, struct dirent *dp, off_t off); static int iso_shipdir(struct isoreaddir *idp); static vop_readdir_t cd9660_readdir; static vop_readlink_t cd9660_readlink; static vop_strategy_t cd9660_strategy; static vop_vptofh_t cd9660_vptofh; static vop_getpages_t cd9660_getpages; /* * Setattr call. Only allowed for block and character special devices. */ static int cd9660_setattr(struct vop_setattr_args *ap) { struct vnode *vp = ap->a_vp; struct vattr *vap = ap->a_vap; if (vap->va_flags != (u_long)VNOVAL || vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL || vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_mode != (mode_t)VNOVAL) return (EROFS); if (vap->va_size != (u_quad_t)VNOVAL) { switch (vp->v_type) { case VDIR: return (EISDIR); case VLNK: case VREG: return (EROFS); case VCHR: case VBLK: case VSOCK: case VFIFO: case VNON: case VBAD: case VMARKER: return (0); } } return (0); } /* * Check mode permission on inode pointer. Mode is READ, WRITE or EXEC. * The mode is shifted to select the owner/group/other fields. The * super user is granted all permissions. */ /* ARGSUSED */ static int cd9660_access(struct vop_access_args *ap) { struct vnode *vp = ap->a_vp; struct iso_node *ip = VTOI(vp); accmode_t accmode = ap->a_accmode; + accmode_t file_mode; + uid_t uid; + gid_t gid; if (vp->v_type == VCHR || vp->v_type == VBLK) return (EOPNOTSUPP); /* * Disallow write attempts unless the file is a socket, * fifo, or a block or character device resident on the * filesystem. */ if (accmode & VWRITE) { switch (vp->v_type) { case VDIR: case VLNK: case VREG: return (EROFS); /* NOT REACHED */ default: break; } } - return (vaccess(vp->v_type, ip->inode.iso_mode, ip->inode.iso_uid, - ip->inode.iso_gid, ap->a_accmode, ap->a_cred)); + file_mode = ip->inode.iso_mode; + file_mode &= (vp->v_type == VDIR) ? ip->i_mnt->im_dmask : ip->i_mnt->im_fmask; + + uid = (ip->i_mnt->im_flags & ISOFSMNT_UID) ? + ip->i_mnt->im_uid : ip->inode.iso_uid; + gid = (ip->i_mnt->im_flags & ISOFSMNT_GID) ? + ip->i_mnt->im_gid : ip->inode.iso_gid; + + return (vaccess(vp->v_type, file_mode, uid, + gid, ap->a_accmode, ap->a_cred)); } static int cd9660_open(struct vop_open_args *ap) { struct vnode *vp = ap->a_vp; struct iso_node *ip = VTOI(vp); if (vp->v_type == VCHR || vp->v_type == VBLK) return (EOPNOTSUPP); vnode_create_vobject(vp, ip->i_size, ap->a_td); return (0); } static int cd9660_getattr(struct vop_getattr_args *ap) { struct vnode *vp = ap->a_vp; struct vattr *vap = ap->a_vap; struct iso_node *ip = VTOI(vp); vap->va_fsid = dev2udev(ip->i_mnt->im_dev); vap->va_fileid = ip->i_number; vap->va_mode = ip->inode.iso_mode; + vap->va_mode &= (vp->v_type == VDIR) ? ip->i_mnt->im_dmask : ip->i_mnt->im_fmask; + vap->va_nlink = ip->inode.iso_links; - vap->va_uid = ip->inode.iso_uid; - vap->va_gid = ip->inode.iso_gid; + vap->va_uid = (ip->i_mnt->im_flags & ISOFSMNT_UID) ? + ip->i_mnt->im_uid : ip->inode.iso_uid; + vap->va_gid = (ip->i_mnt->im_flags & ISOFSMNT_GID) ? + ip->i_mnt->im_gid : ip->inode.iso_gid; vap->va_atime = ip->inode.iso_atime; vap->va_mtime = ip->inode.iso_mtime; vap->va_ctime = ip->inode.iso_ctime; vap->va_rdev = ip->inode.iso_rdev; vap->va_size = (u_quad_t) ip->i_size; if (ip->i_size == 0 && (vap->va_mode & S_IFMT) == S_IFLNK) { struct vop_readlink_args rdlnk; struct iovec aiov; struct uio auio; char *cp; cp = malloc(MAXPATHLEN, M_TEMP, M_WAITOK); aiov.iov_base = cp; aiov.iov_len = MAXPATHLEN; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; auio.uio_offset = 0; auio.uio_rw = UIO_READ; auio.uio_segflg = UIO_SYSSPACE; auio.uio_td = curthread; auio.uio_resid = MAXPATHLEN; rdlnk.a_uio = &auio; rdlnk.a_vp = ap->a_vp; rdlnk.a_cred = ap->a_cred; if (cd9660_readlink(&rdlnk) == 0) vap->va_size = MAXPATHLEN - auio.uio_resid; free(cp, M_TEMP); } vap->va_flags = 0; vap->va_gen = 1; vap->va_blocksize = ip->i_mnt->logical_block_size; vap->va_bytes = (u_quad_t) ip->i_size; vap->va_type = vp->v_type; vap->va_filerev = 0; return (0); } /* * Vnode op for ioctl. */ static int cd9660_ioctl(struct vop_ioctl_args *ap) { struct vnode *vp; struct iso_node *ip; int error; vp = ap->a_vp; vn_lock(vp, LK_SHARED | LK_RETRY); if (VN_IS_DOOMED(vp)) { VOP_UNLOCK(vp); return (EBADF); } if (vp->v_type == VCHR || vp->v_type == VBLK) { VOP_UNLOCK(vp); return (EOPNOTSUPP); } ip = VTOI(vp); error = 0; switch (ap->a_command) { case FIOGETLBA: *(int *)(ap->a_data) = ip->iso_start; break; default: error = ENOTTY; break; } VOP_UNLOCK(vp); return (error); } /* * Vnode op for reading. */ static int cd9660_read(struct vop_read_args *ap) { struct vnode *vp = ap->a_vp; struct uio *uio = ap->a_uio; struct iso_node *ip = VTOI(vp); struct iso_mnt *imp; struct buf *bp; daddr_t lbn, rablock; off_t diff; int rasize, error = 0; int seqcount; long size, n, on; if (vp->v_type == VCHR || vp->v_type == VBLK) return (EOPNOTSUPP); seqcount = ap->a_ioflag >> IO_SEQSHIFT; if (uio->uio_resid == 0) return (0); if (uio->uio_offset < 0) return (EINVAL); imp = ip->i_mnt; do { lbn = lblkno(imp, uio->uio_offset); on = blkoff(imp, uio->uio_offset); n = MIN(imp->logical_block_size - on, uio->uio_resid); diff = (off_t)ip->i_size - uio->uio_offset; if (diff <= 0) return (0); if (diff < n) n = diff; size = blksize(imp, ip, lbn); rablock = lbn + 1; if ((vp->v_mount->mnt_flag & MNT_NOCLUSTERR) == 0) { if (lblktosize(imp, rablock) < ip->i_size) error = cluster_read(vp, (off_t)ip->i_size, lbn, size, NOCRED, uio->uio_resid, (ap->a_ioflag >> 16), 0, &bp); else error = bread(vp, lbn, size, NOCRED, &bp); } else { if (seqcount > 1 && lblktosize(imp, rablock) < ip->i_size) { rasize = blksize(imp, ip, rablock); error = breadn(vp, lbn, size, &rablock, &rasize, 1, NOCRED, &bp); } else error = bread(vp, lbn, size, NOCRED, &bp); } if (error != 0) return (error); n = MIN(n, size - bp->b_resid); error = uiomove(bp->b_data + on, (int)n, uio); brelse(bp); } while (error == 0 && uio->uio_resid > 0 && n != 0); return (error); } /* * Structure for reading directories */ struct isoreaddir { struct dirent saveent; struct dirent assocent; struct dirent current; off_t saveoff; off_t assocoff; off_t curroff; struct uio *uio; off_t uio_off; int eofflag; uint64_t *cookies; int ncookies; }; static int iso_uiodir(struct isoreaddir *idp, struct dirent *dp, off_t off) { int error; dp->d_reclen = GENERIC_DIRSIZ(dp); dirent_terminate(dp); if (idp->uio->uio_resid < dp->d_reclen) { idp->eofflag = 0; return (-1); } if (idp->cookies) { if (idp->ncookies <= 0) { idp->eofflag = 0; return (-1); } *idp->cookies++ = off; --idp->ncookies; } if ((error = uiomove(dp, dp->d_reclen, idp->uio)) != 0) return (error); idp->uio_off = off; return (0); } static int iso_shipdir(struct isoreaddir *idp) { struct dirent *dp; int cl, sl, assoc; int error; char *cname, *sname; cl = idp->current.d_namlen; cname = idp->current.d_name; assoc = (cl > 1) && (*cname == ASSOCCHAR); if (assoc) { cl--; cname++; } dp = &idp->saveent; sname = dp->d_name; if (!(sl = dp->d_namlen)) { dp = &idp->assocent; sname = dp->d_name + 1; sl = dp->d_namlen - 1; } if (sl > 0) { if (sl != cl || bcmp(sname,cname,sl)) { if (idp->assocent.d_namlen) { if ((error = iso_uiodir(idp,&idp->assocent,idp->assocoff)) != 0) return (error); idp->assocent.d_namlen = 0; } if (idp->saveent.d_namlen) { if ((error = iso_uiodir(idp,&idp->saveent,idp->saveoff)) != 0) return (error); idp->saveent.d_namlen = 0; } } } idp->current.d_reclen = GENERIC_DIRSIZ(&idp->current); if (assoc) { idp->assocoff = idp->curroff; memcpy(&idp->assocent, &idp->current, idp->current.d_reclen); } else { idp->saveoff = idp->curroff; memcpy(&idp->saveent, &idp->current, idp->current.d_reclen); } return (0); } /* * Vnode op for readdir */ static int cd9660_readdir(struct vop_readdir_args *ap) { struct uio *uio = ap->a_uio; struct isoreaddir *idp; struct vnode *vdp = ap->a_vp; struct iso_node *dp; struct iso_mnt *imp; struct buf *bp = NULL; struct iso_directory_record *ep; int entryoffsetinblock; doff_t endsearch; u_long bmask; int error = 0; int reclen; u_short namelen; u_int ncookies = 0; uint64_t *cookies = NULL; cd_ino_t ino; dp = VTOI(vdp); imp = dp->i_mnt; bmask = imp->im_bmask; idp = malloc(sizeof(*idp), M_TEMP, M_WAITOK); idp->saveent.d_namlen = idp->assocent.d_namlen = 0; /* * XXX * Is it worth trying to figure out the type? */ idp->saveent.d_type = idp->assocent.d_type = idp->current.d_type = DT_UNKNOWN; idp->uio = uio; if (ap->a_ncookies == NULL) { idp->cookies = NULL; } else { /* * Guess the number of cookies needed. */ ncookies = uio->uio_resid / 16; cookies = malloc(ncookies * sizeof(*cookies), M_TEMP, M_WAITOK); idp->cookies = cookies; idp->ncookies = ncookies; } idp->eofflag = 1; idp->curroff = uio->uio_offset; idp->uio_off = uio->uio_offset; if ((entryoffsetinblock = idp->curroff & bmask) && (error = cd9660_blkatoff(vdp, (off_t)idp->curroff, NULL, &bp))) { free(idp, M_TEMP); return (error); } endsearch = dp->i_size; while (idp->curroff < endsearch) { /* * If offset is on a block boundary, * read the next directory block. * Release previous if it exists. */ if ((idp->curroff & bmask) == 0) { if (bp != NULL) brelse(bp); if ((error = cd9660_blkatoff(vdp, (off_t)idp->curroff, NULL, &bp)) != 0) break; entryoffsetinblock = 0; } /* * Get pointer to next entry. */ ep = (struct iso_directory_record *) ((char *)bp->b_data + entryoffsetinblock); reclen = isonum_711(ep->length); if (reclen == 0) { /* skip to next block, if any */ idp->curroff = (idp->curroff & ~bmask) + imp->logical_block_size; continue; } if (reclen < ISO_DIRECTORY_RECORD_SIZE) { error = EINVAL; /* illegal entry, stop */ break; } if (entryoffsetinblock + reclen > imp->logical_block_size) { error = EINVAL; /* illegal directory, so stop looking */ break; } idp->current.d_namlen = isonum_711(ep->name_len); if (reclen < ISO_DIRECTORY_RECORD_SIZE + idp->current.d_namlen) { error = EINVAL; /* illegal entry, stop */ break; } if (isonum_711(ep->flags)&2) idp->current.d_fileno = isodirino(ep, imp); else idp->current.d_fileno = dbtob(bp->b_blkno) + entryoffsetinblock; idp->curroff += reclen; /* NOTE: d_off is the offset of *next* entry. */ idp->current.d_off = idp->curroff; switch (imp->iso_ftype) { case ISO_FTYPE_RRIP: ino = idp->current.d_fileno; cd9660_rrip_getname(ep, idp->current.d_name, &namelen, &ino, imp); idp->current.d_fileno = ino; idp->current.d_namlen = (u_char)namelen; if (idp->current.d_namlen) error = iso_uiodir(idp,&idp->current,idp->curroff); break; default: /* ISO_FTYPE_DEFAULT || ISO_FTYPE_9660 || ISO_FTYPE_HIGH_SIERRA*/ strcpy(idp->current.d_name,".."); if (idp->current.d_namlen == 1 && ep->name[0] == 0) { idp->current.d_namlen = 1; error = iso_uiodir(idp,&idp->current,idp->curroff); } else if (idp->current.d_namlen == 1 && ep->name[0] == 1) { idp->current.d_namlen = 2; error = iso_uiodir(idp,&idp->current,idp->curroff); } else { isofntrans(ep->name,idp->current.d_namlen, idp->current.d_name, &namelen, imp->iso_ftype == ISO_FTYPE_9660, isonum_711(ep->flags)&4, imp->joliet_level, imp->im_flags, imp->im_d2l); idp->current.d_namlen = (u_char)namelen; if (imp->iso_ftype == ISO_FTYPE_DEFAULT) error = iso_shipdir(idp); else error = iso_uiodir(idp,&idp->current,idp->curroff); } } if (error) break; entryoffsetinblock += reclen; } if (!error && imp->iso_ftype == ISO_FTYPE_DEFAULT) { idp->current.d_namlen = 0; error = iso_shipdir(idp); } if (error < 0) error = 0; if (ap->a_ncookies != NULL) { if (error) free(cookies, M_TEMP); else { /* * Work out the number of cookies actually used. */ *ap->a_ncookies = ncookies - idp->ncookies; *ap->a_cookies = cookies; } } if (bp) brelse (bp); uio->uio_offset = idp->uio_off; *ap->a_eofflag = idp->eofflag; free(idp, M_TEMP); return (error); } /* * Return target name of a symbolic link * Shouldn't we get the parent vnode and read the data from there? * This could eventually result in deadlocks in cd9660_lookup. * But otherwise the block read here is in the block buffer two times. */ typedef struct iso_directory_record ISODIR; typedef struct iso_node ISONODE; typedef struct iso_mnt ISOMNT; static int cd9660_readlink(struct vop_readlink_args *ap) { ISONODE *ip; ISODIR *dirp; ISOMNT *imp; struct buf *bp; struct uio *uio; u_short symlen; int error; char *symname; ip = VTOI(ap->a_vp); imp = ip->i_mnt; uio = ap->a_uio; if (imp->iso_ftype != ISO_FTYPE_RRIP) return (EINVAL); /* * Get parents directory record block that this inode included. */ error = bread(imp->im_devvp, (ip->i_number >> imp->im_bshift) << (imp->im_bshift - DEV_BSHIFT), imp->logical_block_size, NOCRED, &bp); if (error) { return (EINVAL); } /* * Setup the directory pointer for this inode */ dirp = (ISODIR *)(bp->b_data + (ip->i_number & imp->im_bmask)); /* * Just make sure, we have a right one.... * 1: Check not cross boundary on block */ if ((ip->i_number & imp->im_bmask) + isonum_711(dirp->length) > (unsigned)imp->logical_block_size) { brelse(bp); return (EINVAL); } /* * Now get a buffer * Abuse a namei buffer for now. */ if (uio->uio_segflg == UIO_SYSSPACE) symname = uio->uio_iov->iov_base; else symname = uma_zalloc(namei_zone, M_WAITOK); /* * Ok, we just gathering a symbolic name in SL record. */ if (cd9660_rrip_getsymname(dirp, symname, &symlen, imp) == 0) { if (uio->uio_segflg != UIO_SYSSPACE) uma_zfree(namei_zone, symname); brelse(bp); return (EINVAL); } /* * Don't forget before you leave from home ;-) */ brelse(bp); /* * return with the symbolic name to caller's. */ if (uio->uio_segflg != UIO_SYSSPACE) { error = uiomove(symname, symlen, uio); uma_zfree(namei_zone, symname); return (error); } uio->uio_resid -= symlen; uio->uio_iov->iov_base = (char *)uio->uio_iov->iov_base + symlen; uio->uio_iov->iov_len -= symlen; return (0); } /* * Calculate the logical to physical mapping if not done already, * then call the device strategy routine. */ static int cd9660_strategy(struct vop_strategy_args *ap) { struct buf *bp = ap->a_bp; struct vnode *vp = ap->a_vp; struct iso_node *ip; struct bufobj *bo; ip = VTOI(vp); if (vp->v_type == VBLK || vp->v_type == VCHR) panic("cd9660_strategy: spec"); if (bp->b_blkno == bp->b_lblkno) { bp->b_blkno = (ip->iso_start + bp->b_lblkno) << (ip->i_mnt->im_bshift - DEV_BSHIFT); } bp->b_iooffset = dbtob(bp->b_blkno); bo = ip->i_mnt->im_bo; BO_STRATEGY(bo, bp); return (0); } /* * Return POSIX pathconf information applicable to cd9660 filesystems. */ static int cd9660_pathconf(struct vop_pathconf_args *ap) { switch (ap->a_name) { case _PC_FILESIZEBITS: *ap->a_retval = 32; return (0); case _PC_LINK_MAX: *ap->a_retval = 1; return (0); case _PC_NAME_MAX: if (VTOI(ap->a_vp)->i_mnt->iso_ftype == ISO_FTYPE_RRIP) *ap->a_retval = NAME_MAX; else *ap->a_retval = 37; return (0); case _PC_SYMLINK_MAX: if (VTOI(ap->a_vp)->i_mnt->iso_ftype == ISO_FTYPE_RRIP) { *ap->a_retval = MAXPATHLEN; return (0); } return (EINVAL); case _PC_NO_TRUNC: *ap->a_retval = 1; return (0); default: return (vop_stdpathconf(ap)); } /* NOTREACHED */ } /* * Vnode pointer to File handle */ static int cd9660_vptofh(struct vop_vptofh_args *ap) { struct ifid ifh; struct iso_node *ip = VTOI(ap->a_vp); ifh.ifid_len = sizeof(struct ifid); ifh.ifid_ino = ip->i_number; ifh.ifid_start = ip->iso_start; /* * This intentionally uses sizeof(ifh) in order to not copy stack * garbage on ILP32. */ memcpy(ap->a_fhp, &ifh, sizeof(ifh)); #ifdef ISOFS_DBG printf("vptofh: ino %jd, start %ld\n", (uintmax_t)ifh.ifid_ino, ifh.ifid_start); #endif return (0); } SYSCTL_NODE(_vfs, OID_AUTO, cd9660, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, "cd9660 filesystem"); static int use_buf_pager = 1; SYSCTL_INT(_vfs_cd9660, OID_AUTO, use_buf_pager, CTLFLAG_RWTUN, &use_buf_pager, 0, "Use buffer pager instead of bmap"); static daddr_t cd9660_gbp_getblkno(struct vnode *vp, vm_ooffset_t off) { return (lblkno(VTOI(vp)->i_mnt, off)); } static int cd9660_gbp_getblksz(struct vnode *vp, daddr_t lbn, long *sz) { struct iso_node *ip; ip = VTOI(vp); *sz = blksize(ip->i_mnt, ip, lbn); return (0); } static int cd9660_getpages(struct vop_getpages_args *ap) { struct vnode *vp; vp = ap->a_vp; if (vp->v_type == VCHR || vp->v_type == VBLK) return (EOPNOTSUPP); if (use_buf_pager) return (vfs_bio_getpages(vp, ap->a_m, ap->a_count, ap->a_rbehind, ap->a_rahead, cd9660_gbp_getblkno, cd9660_gbp_getblksz)); return (vnode_pager_generic_getpages(vp, ap->a_m, ap->a_count, ap->a_rbehind, ap->a_rahead, NULL, NULL)); } /* * Global vfs data structures for cd9660 */ struct vop_vector cd9660_vnodeops = { .vop_default = &default_vnodeops, .vop_open = cd9660_open, .vop_access = cd9660_access, .vop_bmap = cd9660_bmap, .vop_cachedlookup = cd9660_lookup, .vop_getattr = cd9660_getattr, .vop_inactive = cd9660_inactive, .vop_ioctl = cd9660_ioctl, .vop_lookup = vfs_cache_lookup, .vop_pathconf = cd9660_pathconf, .vop_read = cd9660_read, .vop_readdir = cd9660_readdir, .vop_readlink = cd9660_readlink, .vop_reclaim = cd9660_reclaim, .vop_setattr = cd9660_setattr, .vop_strategy = cd9660_strategy, .vop_vptofh = cd9660_vptofh, .vop_getpages = cd9660_getpages, }; VFS_VOP_VECTOR_REGISTER(cd9660_vnodeops); /* * Special device vnode ops */ struct vop_vector cd9660_fifoops = { .vop_default = &fifo_specops, .vop_access = cd9660_access, .vop_getattr = cd9660_getattr, .vop_inactive = cd9660_inactive, .vop_reclaim = cd9660_reclaim, .vop_setattr = cd9660_setattr, .vop_vptofh = cd9660_vptofh, }; VFS_VOP_VECTOR_REGISTER(cd9660_fifoops); diff --git a/sys/fs/cd9660/iso.h b/sys/fs/cd9660/iso.h index 2d9e2e8b682a..a9733f62c077 100644 --- a/sys/fs/cd9660/iso.h +++ b/sys/fs/cd9660/iso.h @@ -1,369 +1,374 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _ISOFS_CD9660_ISO_H_ #define _ISOFS_CD9660_ISO_H_ #define ISODCL(from, to) (to - from + 1) struct iso_volume_descriptor { char type[ISODCL(1,1)]; /* 711 */ char id[ISODCL(2,6)]; char version[ISODCL(7,7)]; char unused[ISODCL(8,8)]; char type_sierra[ISODCL(9,9)]; /* 711 */ char id_sierra[ISODCL(10,14)]; char version_sierra[ISODCL(15,15)]; char data[ISODCL(16,2048)]; }; /* volume descriptor types */ #define ISO_VD_PRIMARY 1 #define ISO_VD_SUPPLEMENTARY 2 #define ISO_VD_END 255 #define ISO_STANDARD_ID "CD001" #define ISO_ECMA_ID "CDW01" #define ISO_SIERRA_ID "CDROM" struct iso_primary_descriptor { u_char type [ISODCL ( 1, 1)]; /* 711 */ char id [ISODCL ( 2, 6)]; char version [ISODCL ( 7, 7)]; /* 711 */ char unused1 [ISODCL ( 8, 8)]; char system_id [ISODCL ( 9, 40)]; /* achars */ char volume_id [ISODCL ( 41, 72)]; /* dchars */ char unused2 [ISODCL ( 73, 80)]; char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ char unused3 [ISODCL ( 89, 120)]; char volume_set_size [ISODCL (121, 124)]; /* 723 */ char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ u_char logical_block_size [ISODCL (129, 132)]; /* 723 */ char path_table_size [ISODCL (133, 140)]; /* 733 */ char type_l_path_table [ISODCL (141, 144)]; /* 731 */ char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ char type_m_path_table [ISODCL (149, 152)]; /* 732 */ char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ char volume_set_id [ISODCL (191, 318)]; /* dchars */ char publisher_id [ISODCL (319, 446)]; /* achars */ char preparer_id [ISODCL (447, 574)]; /* achars */ char application_id [ISODCL (575, 702)]; /* achars */ char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ char file_structure_version [ISODCL (882, 882)]; /* 711 */ char unused4 [ISODCL (883, 883)]; char application_data [ISODCL (884, 1395)]; char unused5 [ISODCL (1396, 2048)]; } __packed; #define ISO_DEFAULT_BLOCK_SHIFT 11 #define ISO_DEFAULT_BLOCK_SIZE (1 << ISO_DEFAULT_BLOCK_SHIFT) /* * Used by Microsoft Joliet extension to ISO9660. Almost the same * as PVD, but byte position 8 is a flag, and 89-120 is for escape. */ struct iso_supplementary_descriptor { char type [ISODCL ( 1, 1)]; /* 711 */ char id [ISODCL ( 2, 6)]; char version [ISODCL ( 7, 7)]; /* 711 */ char flags [ISODCL ( 8, 8)]; /* 711? */ char system_id [ISODCL ( 9, 40)]; /* achars */ char volume_id [ISODCL ( 41, 72)]; /* dchars */ char unused2 [ISODCL ( 73, 80)]; char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ char escape [ISODCL ( 89, 120)]; char volume_set_size [ISODCL (121, 124)]; /* 723 */ char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ u_char logical_block_size [ISODCL (129, 132)]; /* 723 */ char path_table_size [ISODCL (133, 140)]; /* 733 */ char type_l_path_table [ISODCL (141, 144)]; /* 731 */ char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ char type_m_path_table [ISODCL (149, 152)]; /* 732 */ char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ char volume_set_id [ISODCL (191, 318)]; /* dchars */ char publisher_id [ISODCL (319, 446)]; /* achars */ char preparer_id [ISODCL (447, 574)]; /* achars */ char application_id [ISODCL (575, 702)]; /* achars */ char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ char file_structure_version [ISODCL (882, 882)]; /* 711 */ char unused4 [ISODCL (883, 883)]; char application_data [ISODCL (884, 1395)]; char unused5 [ISODCL (1396, 2048)]; }; struct iso_sierra_primary_descriptor { char unknown1 [ISODCL ( 1, 8)]; /* 733 */ char type [ISODCL ( 9, 9)]; /* 711 */ char id [ISODCL ( 10, 14)]; char version [ISODCL ( 15, 15)]; /* 711 */ char unused1 [ISODCL ( 16, 16)]; char system_id [ISODCL ( 17, 48)]; /* achars */ char volume_id [ISODCL ( 49, 80)]; /* dchars */ char unused2 [ISODCL ( 81, 88)]; char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ char unused3 [ISODCL ( 97, 128)]; char volume_set_size [ISODCL (129, 132)]; /* 723 */ char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ u_char logical_block_size [ISODCL (137, 140)]; /* 723 */ char path_table_size [ISODCL (141, 148)]; /* 733 */ char type_l_path_table [ISODCL (149, 152)]; /* 731 */ char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */ char unknown2 [ISODCL (157, 160)]; /* 731 */ char unknown3 [ISODCL (161, 164)]; /* 731 */ char type_m_path_table [ISODCL (165, 168)]; /* 732 */ char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */ char unknown4 [ISODCL (173, 176)]; /* 732 */ char unknown5 [ISODCL (177, 180)]; /* 732 */ char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ char volume_set_id [ISODCL (215, 342)]; /* dchars */ char publisher_id [ISODCL (343, 470)]; /* achars */ char preparer_id [ISODCL (471, 598)]; /* achars */ char application_id [ISODCL (599, 726)]; /* achars */ char copyright_id [ISODCL (727, 790)]; /* achars */ char creation_date [ISODCL (791, 806)]; /* ? */ char modification_date [ISODCL (807, 822)]; /* ? */ char expiration_date [ISODCL (823, 838)]; /* ? */ char effective_date [ISODCL (839, 854)]; /* ? */ char file_structure_version [ISODCL (855, 855)]; /* 711 */ char unused4 [ISODCL (856, 2048)]; }; struct iso_directory_record { u_char length [ISODCL (1, 1)]; /* 711 */ u_char ext_attr_length [ISODCL (2, 2)]; /* 711 */ u_char extent [ISODCL (3, 10)]; /* 733 */ u_char size [ISODCL (11, 18)]; /* 733 */ u_char date [ISODCL (19, 25)]; /* 7 by 711 */ u_char flags [ISODCL (26, 26)]; u_char file_unit_size [ISODCL (27, 27)]; /* 711 */ u_char interleave [ISODCL (28, 28)]; /* 711 */ u_char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ u_char name_len [ISODCL (33, 33)]; /* 711 */ char name [1]; /* XXX */ } __packed; /* can't take sizeof(iso_directory_record), because of possible alignment of the last entry (34 instead of 33) */ #define ISO_DIRECTORY_RECORD_SIZE 33 struct iso_extended_attributes { u_char owner [ISODCL (1, 4)]; /* 723 */ u_char group [ISODCL (5, 8)]; /* 723 */ u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ char recfmt [ISODCL (79, 79)]; /* 711 */ char recattr [ISODCL (80, 80)]; /* 711 */ u_char reclen [ISODCL (81, 84)]; /* 723 */ char system_id [ISODCL (85, 116)]; /* achars */ char system_use [ISODCL (117, 180)]; char version [ISODCL (181, 181)]; /* 711 */ char len_esc [ISODCL (182, 182)]; /* 711 */ char reserved [ISODCL (183, 246)]; u_char len_au [ISODCL (247, 250)]; /* 723 */ }; #ifdef _KERNEL /* CD-ROM Format type */ enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA }; #ifndef ISOFSMNT_ROOT #define ISOFSMNT_ROOT 0 #endif /* * When ino_t becomes 64-bit, we can remove this definition in favor of ino_t. */ typedef __uint64_t cd_ino_t; struct iso_mnt { uint64_t im_flags; struct mount *im_mountp; struct cdev *im_dev; struct vnode *im_devvp; struct g_consumer *im_cp; struct bufobj *im_bo; + uid_t im_uid; + gid_t im_gid; + mode_t im_fmask; + mode_t im_dmask; + int logical_block_size; int im_bshift; int im_bmask; int volume_space_size; char root[ISODCL (157, 190)]; int root_extent; int root_size; enum ISO_FTYPE iso_ftype; int rr_skip; int rr_skip0; int joliet_level; void *im_d2l; void *im_l2d; }; struct ifid { u_short ifid_len; u_short ifid_pad; cd_ino_t ifid_ino; long ifid_start; }; #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data)) #define blkoff(imp, loc) ((loc) & (imp)->im_bmask) #define lblktosize(imp, blk) ((blk) << (imp)->im_bshift) #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) #define blksize(imp, ip, lbn) ((imp)->logical_block_size) int cd9660_vget_internal(struct mount *, cd_ino_t, int, struct vnode **, int, struct iso_directory_record *); #define cd9660_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \ size_t, struct proc *))eopnotsupp) extern struct vop_vector cd9660_vnodeops; extern struct vop_vector cd9660_fifoops; int isochar(u_char *, u_char *, int, u_short *, int *, int, void *); int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *); void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *); cd_ino_t isodirino(struct iso_directory_record *, struct iso_mnt *); u_short sgetrune(const char *, size_t, char const **, int, void *); #endif /* _KERNEL */ /* * The isonum_xxx functions are inlined anyway, and could come handy even * outside the kernel. Thus we don't hide them here. */ /* * 7xy * x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits * y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be) */ static __inline uint8_t isonum_711(const unsigned char *p) { return (p[0]); } static __inline int8_t isonum_712(const unsigned char *p) { return ((signed char)p[0]); } static __inline uint8_t isonum_713(const unsigned char *p) { return (p[0]); } static __inline uint16_t isonum_721(const unsigned char *p) { return (p[0] | p[1] << 8); } static __inline uint16_t isonum_722(const unsigned char *p) { return (p[1] | p[0] << 8); } static __inline uint16_t isonum_723(const unsigned char *p) { return (p[0] | p[1] << 8); } static __inline uint32_t isonum_731(const unsigned char *p) { return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); } static __inline uint32_t isonum_732(const unsigned char *p) { return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24); } static __inline uint32_t isonum_733(const unsigned char *p) { return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); } /* * Associated files have a leading '='. */ #define ASSOCCHAR '=' #endif /* _ISOFS_CD9660_ISO_H_ */