/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* $NetBSD: cd9660_vnops.c,v 1.22 1994/12/27 19:05:12 mycroft Exp $ */ /*- * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * @(#)cd9660_vnops.c 8.15 (Berkeley) 12/5/94 * * HISTORY * 02-Feb-00 chw Add cd9660_copyfile to return error * 29-Sep-98 djb Add cd9660_getattrlist VOP for VDI support. * 15-sep-98 added cd9660_rmdir to do proper unlocking - chw * 12-aug-98 added cd9660_remove which will do proper unlocking - chw * 17-Feb-98 radar 1669467 - changed lock protocols to use the lock manager - chw * 22-Jan-98 radar 1669467 - ISO 9660 CD support - jwc */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Open called. * * Nothing to do. */ /* ARGSUSED */ int cd9660_open(ap) struct vop_open_args /* { struct vnode *a_vp; int a_mode; struct ucred *a_cred; struct proc *a_p; } */ *ap; { return (0); } /* * Close called * * Update the times on the inode on writeable file systems. */ /* ARGSUSED */ int cd9660_close(ap) struct vop_close_args /* { struct vnode *a_vp; int a_fflag; struct ucred *a_cred; struct proc *a_p; } */ *ap; { 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 */ int cd9660_access(ap) struct vop_access_args /* { struct vnode *a_vp; int a_mode; struct ucred *a_cred; struct proc *a_p; } */ *ap; { struct vnode *vp = ap->a_vp; struct iso_node *ip = VTOI(vp); struct ucred *cred = ap->a_cred; mode_t mask, mode = ap->a_mode; register gid_t *gp; int i, error; /* * Disallow write attempts on read-only file systems; * unless the file is a socket, fifo, or a block or * character device resident on the file system. */ if (mode & VWRITE) { switch (vp->v_type) { case VDIR: case VLNK: case VREG: return (EROFS); /* NOT REACHED */ default: break; } } /* If immutable bit set, nobody gets to write it. */ #if 0 if ((mode & VWRITE) && (ip->i_flag & IMMUTABLE)) return (EPERM); #endif /* Otherwise, user id 0 always gets access. */ if (cred->cr_uid == 0) return (0); mask = 0; /* Otherwise, check the owner. */ if (cred->cr_uid == ip->inode.iso_uid) { if (mode & VEXEC) mask |= S_IXUSR; if (mode & VREAD) mask |= S_IRUSR; if (mode & VWRITE) mask |= S_IWUSR; return ((ip->inode.iso_mode & mask) == mask ? 0 : EACCES); } /* Otherwise, check the groups. */ for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++) if (ip->inode.iso_gid == *gp) { if (mode & VEXEC) mask |= S_IXGRP; if (mode & VREAD) mask |= S_IRGRP; if (mode & VWRITE) mask |= S_IWGRP; return ((ip->inode.iso_mode & mask) == mask ? 0 : EACCES); } /* Otherwise, check everyone else. */ if (mode & VEXEC) mask |= S_IXOTH; if (mode & VREAD) mask |= S_IROTH; if (mode & VWRITE) mask |= S_IWOTH; return ((ip->inode.iso_mode & mask) == mask ? 0 : EACCES); } int cd9660_getattr(ap) struct vop_getattr_args /* { struct vnode *a_vp; struct vattr *a_vap; struct ucred *a_cred; struct proc *a_p; } */ *ap; { struct vnode *vp = ap->a_vp; register struct vattr *vap = ap->a_vap; register struct iso_node *ip = VTOI(vp); vap->va_fsid = ip->i_dev; vap->va_fileid = ip->i_number; vap->va_mode = ip->inode.iso_mode; vap->va_nlink = ip->inode.iso_links; vap->va_uid = ip->inode.iso_uid; vap->va_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; MALLOC(cp, char *, 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_procp = ap->a_p; 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 + ip->i_rsrcsize); vap->va_type = vp->v_type; return (0); } /* * Vnode op for reading. */ int cd9660_read(ap) struct vop_read_args /* { struct vnode *a_vp; struct uio *a_uio; int a_ioflag; struct ucred *a_cred; } */ *ap; { struct vnode *vp = ap->a_vp; register struct uio *uio = ap->a_uio; register struct iso_node *ip = VTOI(vp); register struct iso_mnt *imp; struct buf *bp; daddr_t lbn, rablock; off_t diff; int rasize, error = 0; long size, n, on; int devBlockSize = 0; if (uio->uio_resid == 0) return (0); if (uio->uio_offset < 0) return (EINVAL); imp = ip->i_mnt; VOP_DEVBLOCKSIZE(ip->i_devvp, &devBlockSize); if (UBCISVALID(vp)) error = cluster_read(vp, uio, (off_t)ip->i_size, devBlockSize, 0); else { do { lbn = lblkno(imp, uio->uio_offset); on = blkoff(imp, uio->uio_offset); n = min((u_int)(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_lastr + 1 == lbn && 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); vp->v_lastr = lbn; n = min(n, size - bp->b_resid); if (error) { brelse(bp); return (error); } error = uiomove(bp->b_data + on, (int)n, uio); if (n + on == imp->logical_block_size || uio->uio_offset == (off_t)ip->i_size) bp->b_flags |= B_AGE; brelse(bp); } while (error == 0 && uio->uio_resid > 0 && n != 0); } return (error); } /* ARGSUSED */ int cd9660_ioctl(ap) struct vop_ioctl_args /* { struct vnode *a_vp; u_long a_command; caddr_t a_data; int a_fflag; struct ucred *a_cred; struct proc *a_p; } */ *ap; { printf("You did ioctl for isofs !!\n"); return (ENOTTY); } /* ARGSUSED */ int cd9660_select(ap) struct vop_select_args /* { struct vnode *a_vp; int a_which; int a_fflags; struct ucred *a_cred; void *a_wql; struct proc *a_p; } */ *ap; { /* * We should really check to see if I/O is possible. */ return (1); } /* * Mmap a file * * NB Currently unsupported. */ /* ARGSUSED */ int cd9660_mmap(ap) struct vop_mmap_args /* { struct vnode *a_vp; int a_fflags; struct ucred *a_cred; struct proc *a_p; } */ *ap; { return (EINVAL); } /* * Seek on a file * * Nothing to do, so just return. */ /* ARGSUSED */ int cd9660_seek(ap) struct vop_seek_args /* { struct vnode *a_vp; off_t a_oldoff; off_t a_newoff; struct ucred *a_cred; } */ *ap; { return (0); } /* * Structure for reading directories */ struct isoreaddir { struct dirent saveent; struct dirent current; off_t saveoff; off_t curroff; struct uio *uio; off_t uio_off; int eofflag; // u_long **cookies; // int *ncookies; }; static int iso_uiodir(idp,dp,off) struct isoreaddir *idp; struct dirent *dp; off_t off; { int error; dp->d_name[dp->d_namlen] = 0; dp->d_reclen = DIRSIZ(dp); if (idp->uio->uio_resid < dp->d_reclen) { idp->eofflag = 0; return (-1); } #if 0 if (idp->cookies) { if (*idp->ncookies <= 0) { idp->eofflag = 0; return (-1); } **idp->cookies++ = off; --*idp->ncookies; } #endif if ( (error = uiomove( (caddr_t)dp, dp->d_reclen, idp->uio )) ) return (error); idp->uio_off = off; return (0); } static int iso_shipdir(idp) struct isoreaddir *idp; { struct dirent *dp; int cl, sl; int error; char *cname, *sname; cl = idp->current.d_namlen; cname = idp->current.d_name; dp = &idp->saveent; sname = dp->d_name; sl = dp->d_namlen; if (sl > 0) { if (sl != cl || bcmp(sname,cname,sl)) { if (idp->saveent.d_namlen) { if ( (error = iso_uiodir(idp,&idp->saveent,idp->saveoff)) ) return (error); idp->saveent.d_namlen = 0; } } } idp->current.d_reclen = DIRSIZ(&idp->current); idp->saveoff = idp->curroff; bcopy(&idp->current,&idp->saveent,idp->current.d_reclen); return (0); } /* * Vnode op for readdir */ int cd9660_readdir(ap) struct vop_readdir_args /* { struct vnodeop_desc *a_desc; struct vnode *a_vp; struct uio *a_uio; struct ucred *a_cred; int *a_eofflag; int *a_ncookies; u_long **a_cookies; } */ *ap; { register struct uio *uio = ap->a_uio; off_t startingOffset = uio->uio_offset; size_t lost = 0; 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; dp = VTOI(vdp); imp = dp->i_mnt; bmask = imp->im_bmask; MALLOC(idp, struct isoreaddir *, sizeof(*idp), M_TEMP, M_WAITOK); idp->saveent.d_namlen = 0; /* * XXX * Is it worth trying to figure out the type? */ idp->saveent.d_type = idp->current.d_type = DT_UNKNOWN; idp->uio = uio; idp->eofflag = 1; idp->curroff = uio->uio_offset; if ((entryoffsetinblock = idp->curroff & bmask) && (error = VOP_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 = VOP_BLKATOFF(vdp, (off_t)idp->curroff, NULL, &bp)) ) 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; } /* skip over associated files (Mac OS resource fork) */ if (isonum_711(ep->flags) & associatedBit) { idp->curroff += reclen; entryoffsetinblock += reclen; continue; } if ( isonum_711(ep->flags) & directoryBit ) idp->current.d_fileno = isodirino(ep, imp); else { idp->current.d_fileno = (bp->b_blkno << imp->im_bshift) + entryoffsetinblock; } idp->curroff += reclen; switch (imp->iso_ftype) { case ISO_FTYPE_RRIP: cd9660_rrip_getname(ep,idp->current.d_name, &namelen, &idp->current.d_fileno,imp); idp->current.d_namlen = (u_char)namelen; if (idp->current.d_namlen) error = iso_uiodir(idp,&idp->current,idp->curroff); break; case ISO_FTYPE_JOLIET: ucsfntrans((u_int16_t *)ep->name, idp->current.d_namlen, idp->current.d_name, &namelen, isonum_711(ep->flags) & directoryBit); 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 */ strcpy(idp->current.d_name,".."); switch (ep->name[0]) { case 0: idp->current.d_namlen = 1; error = iso_uiodir(idp,&idp->current,idp->curroff); break; case 1: idp->current.d_namlen = 2; error = iso_uiodir(idp,&idp->current,idp->curroff); break; default: isofntrans(ep->name,idp->current.d_namlen, idp->current.d_name, &namelen, imp->iso_ftype == ISO_FTYPE_9660); 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); break; } } if (error) break; entryoffsetinblock += reclen; } if (!error && imp->iso_ftype == ISO_FTYPE_DEFAULT) { idp->current.d_namlen = 0; error = iso_shipdir(idp); } if (!error && ap->a_ncookies) { struct dirent *dp, *dpstart; off_t bufferOffset; u_long *cookies; int ncookies; /* * Only the NFS server uses cookies, and it loads the * directory block into system space, so we can just look at * it directly. * * We assume the entire transfer is done to a single contiguous buffer. */ if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1) panic("ufs_readdir: lost in space"); /* * Make a first pass over the buffer just generated, * counting the number of entries: */ dpstart = (struct dirent *) (uio->uio_iov->iov_base - (uio->uio_offset - startingOffset)); for (dp = dpstart, bufferOffset = startingOffset, ncookies = 0; bufferOffset < uio->uio_offset; ) { if (dp->d_reclen == 0) break; bufferOffset += dp->d_reclen; ncookies++; dp = (struct dirent *)((caddr_t)dp + dp->d_reclen); } lost += uio->uio_offset - bufferOffset; uio->uio_offset = bufferOffset; /* * Allocate a buffer to hold the cookies requested: */ MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP, M_WAITOK); *ap->a_ncookies = ncookies; *ap->a_cookies = cookies; /* * Fill in the offsets for each entry in the buffer just allocated: */ for (bufferOffset = startingOffset, dp = dpstart; bufferOffset < uio->uio_offset; ) { *(cookies++) = bufferOffset; bufferOffset += dp->d_reclen; dp = (struct dirent *)((caddr_t)dp + dp->d_reclen); } } if (error < 0) error = 0; 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; int cd9660_readlink(ap) struct vop_readlink_args /* { struct vnode *a_vp; struct uio *a_uio; struct ucred *a_cred; } */ *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->logical_block_size, NOCRED, &bp); if (error) { brelse(bp); 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) > 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 MALLOC_ZONE(symname, char *, MAXPATHLEN, M_NAMEI, 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) FREE_ZONE(symname, MAXPATHLEN, M_NAMEI); 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); FREE_ZONE(symname, MAXPATHLEN, M_NAMEI); return (error); } uio->uio_resid -= symlen; uio->uio_iov->iov_base += symlen; uio->uio_iov->iov_len -= symlen; return (0); } /* * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually * done. If a buffer has been saved in anticipation of a CREATE, delete it. */ int cd9660_abortop(ap) struct vop_abortop_args /* { struct vnode *a_dvp; struct componentname *a_cnp; } */ *ap; { if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF) FREE_ZONE(ap->a_cnp->cn_pnbuf, ap->a_cnp->cn_pnlen, M_NAMEI); return (0); } /* * Lock an inode. */ int cd9660_lock(ap) struct vop_lock_args /* { struct vnode *a_vp; int a_flags; struct proc *a_p; } */ *ap; { struct vnode *vp = ap->a_vp; if (VTOI(vp) == (struct iso_node *) NULL) panic ("cd9660_lock: null inode"); return (lockmgr(&VTOI(vp)->i_lock, ap->a_flags, &vp->v_interlock,ap->a_p)); } /* * Unlock an inode. */ int cd9660_unlock(ap) struct vop_unlock_args /* { struct vnode *a_vp; int a_flags; struct proc *a_p; } */ *ap; { struct vnode *vp = ap->a_vp; return (lockmgr(&VTOI(vp)->i_lock, ap->a_flags | LK_RELEASE, &vp->v_interlock,ap->a_p)); } /* * Calculate the logical to physical mapping if not done already, * then call the device strategy routine. */ int cd9660_strategy(ap) struct vop_strategy_args /* { struct buf *a_bp; } */ *ap; { register struct buf *bp = ap->a_bp; register struct vnode *vp = bp->b_vp; register struct iso_node *ip; int error; ip = VTOI(vp); if (vp->v_type == VBLK || vp->v_type == VCHR) panic("cd9660_strategy: spec"); if (bp->b_blkno == bp->b_lblkno) { if ( (error = VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL)) ) { bp->b_error = error; bp->b_flags |= B_ERROR; biodone(bp); return (error); } if ((long)bp->b_blkno == -1) clrbuf(bp); } if ((long)bp->b_blkno == -1) { biodone(bp); return (0); } vp = ip->i_devvp; bp->b_dev = vp->v_rdev; VOCALL (vp->v_op, VOFFSET(vop_strategy), ap); return (0); } /* * Print out the contents of an inode. */ int cd9660_print(ap) struct vop_print_args /* { struct vnode *a_vp; } */ *ap; { printf("tag VT_ISOFS, isofs vnode\n"); return (0); } /* * Check for a locked inode. */ int cd9660_islocked(ap) struct vop_islocked_args /* { struct vnode *a_vp; } */ *ap; { return (lockstatus(&VTOI(ap->a_vp)->i_lock)); } /* * Return POSIX pathconf information applicable to cd9660 filesystems. */ int cd9660_pathconf(ap) struct vop_pathconf_args /* { struct vnode *a_vp; int a_name; register_t *a_retval; } */ *ap; { switch (ap->a_name) { case _PC_LINK_MAX: *ap->a_retval = 1; return (0); case _PC_NAME_MAX: switch (VTOI(ap->a_vp)->i_mnt->iso_ftype) { case ISO_FTYPE_RRIP: *ap->a_retval = ISO_RRIP_NAMEMAX; break; case ISO_FTYPE_JOLIET: *ap->a_retval = ISO_JOLIET_NAMEMAX; break; default: *ap->a_retval = ISO_NAMEMAX; } return (0); case _PC_PATH_MAX: *ap->a_retval = PATH_MAX; return (0); case _PC_PIPE_BUF: *ap->a_retval = PIPE_BUF; return (0); case _PC_CHOWN_RESTRICTED: *ap->a_retval = 1; return (0); case _PC_NO_TRUNC: *ap->a_retval = 1; return (0); default: return (EINVAL); } /* NOTREACHED */ } /* * Unsupported operation */ int cd9660_enotsupp() { return (EOPNOTSUPP); } /* Pagein. similar to read */ int cd9660_pagein(ap) struct vop_pagein_args /* { struct vnode *a_vp, upl_t a_pl, vm_offset_t a_pl_offset, off_t a_f_offset, size_t a_size, struct ucred *a_cred, int a_flags } */ *ap; { struct vnode *vp = ap->a_vp; upl_t pl = ap->a_pl; size_t size= ap->a_size; off_t f_offset = ap->a_f_offset; vm_offset_t pl_offset = ap->a_pl_offset; int flags = ap->a_flags; register struct iso_node *ip = VTOI(vp); int devBlockSize=0, error; /* check pageouts are for reg file only and ubc info is present*/ if (UBCINVALID(vp)) panic("cd9660_pagein: Not a VREG"); UBCINFOCHECK("cd9660_pagein", vp); VOP_DEVBLOCKSIZE(ip->i_devvp, &devBlockSize); error = cluster_pagein(vp, pl, pl_offset, f_offset, size, (off_t)ip->i_size, devBlockSize, flags); return (error); } /* * cd9660_remove - not possible to remove a file from iso cds * * Locking policy: a_dvp and vp locked on entry, unlocked on exit */ int cd9660_remove(ap) struct vop_remove_args /* { struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap; { if (ap->a_dvp == ap->a_vp) vrele(ap->a_vp); else vput(ap->a_vp); vput(ap->a_dvp); return (EROFS); } /* * cd9660_rmdir - not possible to remove a directory from iso cds * * Locking policy: a_dvp and vp locked on entry, unlocked on exit */ int cd9660_rmdir(ap) struct vop_rmdir_args /* { struct vnode *a_dvp; struct vnode *a_vp; struct componentname *a_cnp; } */ *ap; { (void) nop_rmdir(ap); return (EROFS); } /* # #% getattrlist vp = = = # vop_getattrlist { IN struct vnode *vp; IN struct attrlist *alist; INOUT struct uio *uio; IN struct ucred *cred; IN struct proc *p; }; */ int cd9660_getattrlist(ap) struct vop_getattrlist_args /* { struct vnode *a_vp; struct attrlist *a_alist struct uio *a_uio; struct ucred *a_cred; struct proc *a_p; } */ *ap; { struct attrlist *alist = ap->a_alist; int fixedblocksize; int attrblocksize; int attrbufsize; void *attrbufptr; void *attrptr; void *varptr; int error = 0; if ((alist->bitmapcount != ATTR_BIT_MAP_COUNT) || ((alist->commonattr & ~ATTR_CMN_VALIDMASK) != 0) || ((alist->volattr & ~ATTR_VOL_VALIDMASK) != 0) || ((alist->dirattr & ~ATTR_DIR_VALIDMASK) != 0) || ((alist->fileattr & ~ATTR_FILE_VALIDMASK) != 0) || ((alist->forkattr & ~ATTR_FORK_VALIDMASK) != 0)) { return EINVAL; }; /* * Requesting volume information requires setting the ATTR_VOL_INFO bit and * volume info requests are mutually exclusive with all other info requests: */ if ((alist->volattr != 0) && (((alist->volattr & ATTR_VOL_INFO) == 0) || (alist->dirattr != 0) || (alist->fileattr != 0) || (alist->forkattr != 0) )) { return EINVAL; }; /* * Reject requests for unsupported options for now: */ if (alist->volattr & ATTR_VOL_MOUNTPOINT) return EINVAL; if (alist->commonattr & (ATTR_CMN_NAMEDATTRCOUNT | ATTR_CMN_NAMEDATTRLIST)) return EINVAL; if (alist->fileattr & (ATTR_FILE_FILETYPE | ATTR_FILE_FORKCOUNT | ATTR_FILE_FORKLIST | ATTR_FILE_DATAEXTENTS | ATTR_FILE_RSRCEXTENTS)) { return EINVAL; }; fixedblocksize = attrcalcsize(alist); attrblocksize = fixedblocksize + (sizeof(u_long)); /* u_long for length longword */ if (alist->commonattr & ATTR_CMN_NAME) attrblocksize += NAME_MAX; if (alist->commonattr & ATTR_CMN_NAMEDATTRLIST) attrblocksize += 0; /* XXX PPD */ if (alist->volattr & ATTR_VOL_MOUNTPOINT) attrblocksize += PATH_MAX; if (alist->volattr & ATTR_VOL_NAME) attrblocksize += NAME_MAX; if (alist->fileattr & ATTR_FILE_FORKLIST) attrblocksize += 0; /* XXX PPD */ attrbufsize = MIN(ap->a_uio->uio_resid, attrblocksize); MALLOC(attrbufptr, void *, attrblocksize, M_TEMP, M_WAITOK); attrptr = attrbufptr; *((u_long *)attrptr) = 0; /* Set buffer length in case of errors */ ++((u_long *)attrptr); /* Reserve space for length field */ varptr = ((char *)attrptr) + fixedblocksize; /* Point to variable-length storage */ packattrblk(alist, ap->a_vp, &attrptr, &varptr); /* Store length of fixed + var block */ *((u_long *)attrbufptr) = ((char*)varptr - (char*)attrbufptr); /* Don't copy out more data than was generated */ attrbufsize = MIN(attrbufsize, (char*)varptr - (char*)attrbufptr); error = uiomove((caddr_t)attrbufptr, attrbufsize, ap->a_uio); FREE(attrbufptr, M_TEMP); return error; } /* * Global vfs data structures for isofs */ #define cd9660_create \ ((int (*) __P((struct vop_create_args *)))err_create) #define cd9660_mknod ((int (*) __P((struct vop_mknod_args *)))err_mknod) #define cd9660_setattr \ ((int (*) __P((struct vop_setattr_args *)))cd9660_enotsupp) #define cd9660_write ((int (*) __P((struct vop_write_args *)))cd9660_enotsupp) #if NFSSERVER int lease_check __P((struct vop_lease_args *)); #define cd9660_lease_check lease_check #else #define cd9660_lease_check ((int (*) __P((struct vop_lease_args *)))nullop) #endif #define cd9660_fsync ((int (*) __P((struct vop_fsync_args *)))nullop) #define cd9660_rename \ ((int (*) __P((struct vop_rename_args *)))err_rename) #define cd9660_copyfile \ ((int (*) __P((struct vop_copyfile_args *)))err_copyfile) #define cd9660_link ((int (*) __P((struct vop_link_args *)))err_link) #define cd9660_mkdir ((int (*) __P((struct vop_mkdir_args *)))err_mkdir) #define cd9660_symlink \ ((int (*) __P((struct vop_symlink_args *)))err_symlink) #define cd9660_advlock \ ((int (*) __P((struct vop_advlock_args *)))cd9660_enotsupp) #define cd9660_valloc ((int(*) __P(( \ struct vnode *pvp, \ int mode, \ struct ucred *cred, \ struct vnode **vpp))) cd9660_enotsupp) #define cd9660_vfree ((int (*) __P((struct vop_vfree_args *)))cd9660_enotsupp) #define cd9660_truncate \ ((int (*) __P((struct vop_truncate_args *)))cd9660_enotsupp) #define cd9660_update \ ((int (*) __P((struct vop_update_args *)))cd9660_enotsupp) #define cd9660_bwrite \ ((int (*) __P((struct vop_bwrite_args *)))cd9660_enotsupp) #define cd9660_pageout \ ((int (*) __P((struct vop_pageout_args *)))cd9660_enotsupp) int cd9660_blktooff(struct vop_blktooff_args *ap); int cd9660_offtoblk(struct vop_offtoblk_args *ap); int cd9660_cmap(struct vop_cmap_args *ap); #define VOPFUNC int (*)(void *) /* * Global vfs data structures for cd9660 */ int (**cd9660_vnodeop_p)(void *); struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = { { &vop_default_desc, (VOPFUNC)vn_default_error }, { &vop_lookup_desc, (VOPFUNC)cd9660_lookup }, /* lookup */ { &vop_create_desc, (VOPFUNC)cd9660_create }, /* create */ { &vop_mknod_desc, (VOPFUNC)cd9660_mknod }, /* mknod */ { &vop_open_desc, (VOPFUNC)cd9660_open }, /* open */ { &vop_close_desc, (VOPFUNC)cd9660_close }, /* close */ { &vop_access_desc, (VOPFUNC)cd9660_access }, /* access */ { &vop_getattr_desc, (VOPFUNC)cd9660_getattr }, /* getattr */ { &vop_setattr_desc, (VOPFUNC)cd9660_setattr }, /* setattr */ { &vop_read_desc, (VOPFUNC)cd9660_read }, /* read */ { &vop_write_desc, (VOPFUNC)cd9660_write }, /* write */ { &vop_lease_desc, (VOPFUNC)cd9660_lease_check },/* lease */ { &vop_ioctl_desc, (VOPFUNC)cd9660_ioctl }, /* ioctl */ { &vop_select_desc, (VOPFUNC)cd9660_select }, /* select */ { &vop_mmap_desc, (VOPFUNC)cd9660_mmap }, /* mmap */ { &vop_fsync_desc, (VOPFUNC)cd9660_fsync }, /* fsync */ { &vop_seek_desc, (VOPFUNC)cd9660_seek }, /* seek */ { &vop_remove_desc, (VOPFUNC)cd9660_remove }, /* remove */ { &vop_link_desc, (VOPFUNC)cd9660_link }, /* link */ { &vop_rename_desc, (VOPFUNC)cd9660_rename }, /* rename */ { &vop_copyfile_desc, (VOPFUNC)cd9660_copyfile },/* copyfile */ { &vop_mkdir_desc, (VOPFUNC)cd9660_mkdir }, /* mkdir */ { &vop_rmdir_desc, (VOPFUNC)cd9660_rmdir }, /* rmdir */ { &vop_symlink_desc, (VOPFUNC)cd9660_symlink }, /* symlink */ { &vop_readdir_desc, (VOPFUNC)cd9660_readdir }, /* readdir */ { &vop_readlink_desc, (VOPFUNC)cd9660_readlink },/* readlink */ { &vop_abortop_desc, (VOPFUNC)cd9660_abortop }, /* abortop */ { &vop_inactive_desc, (VOPFUNC)cd9660_inactive },/* inactive */ { &vop_reclaim_desc, (VOPFUNC)cd9660_reclaim }, /* reclaim */ { &vop_lock_desc, (VOPFUNC)cd9660_lock }, /* lock */ { &vop_unlock_desc, (VOPFUNC)cd9660_unlock }, /* unlock */ { &vop_bmap_desc, (VOPFUNC)cd9660_bmap }, /* bmap */ { &vop_strategy_desc, (VOPFUNC)cd9660_strategy },/* strategy */ { &vop_print_desc, (VOPFUNC)cd9660_print }, /* print */ { &vop_islocked_desc, (VOPFUNC)cd9660_islocked },/* islocked */ { &vop_pathconf_desc, (VOPFUNC)cd9660_pathconf },/* pathconf */ { &vop_advlock_desc, (VOPFUNC)cd9660_advlock }, /* advlock */ { &vop_blkatoff_desc, (VOPFUNC)cd9660_blkatoff },/* blkatoff */ { &vop_valloc_desc, (VOPFUNC)cd9660_valloc }, /* valloc */ { &vop_vfree_desc, (VOPFUNC)cd9660_vfree }, /* vfree */ { &vop_truncate_desc, (VOPFUNC)cd9660_truncate },/* truncate */ { &vop_update_desc, (VOPFUNC)cd9660_update }, /* update */ { &vop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vop_pagein_desc, (VOPFUNC)cd9660_pagein }, /* Pagein */ { &vop_pageout_desc, (VOPFUNC)cd9660_pageout }, /* Pageout */ { &vop_getattrlist_desc, (VOPFUNC)cd9660_getattrlist }, /* getattrlist */ { &vop_blktooff_desc, (VOPFUNC)cd9660_blktooff }, /* blktooff */ { &vop_offtoblk_desc, (VOPFUNC)cd9660_offtoblk }, /* offtoblk */ { &vop_cmap_desc, (VOPFUNC)cd9660_cmap }, /* cmap */ { (struct vnodeop_desc*)NULL, (VOPFUNC)NULL } }; struct vnodeopv_desc cd9660_vnodeop_opv_desc = { &cd9660_vnodeop_p, cd9660_vnodeop_entries }; /* * Special device vnode ops */ int (**cd9660_specop_p)(void *); struct vnodeopv_entry_desc cd9660_specop_entries[] = { { &vop_default_desc, (VOPFUNC)vn_default_error }, { &vop_lookup_desc, (VOPFUNC)spec_lookup }, /* lookup */ { &vop_create_desc, (VOPFUNC)spec_create }, /* create */ { &vop_mknod_desc, (VOPFUNC)spec_mknod }, /* mknod */ { &vop_open_desc, (VOPFUNC)spec_open }, /* open */ { &vop_close_desc, (VOPFUNC)spec_close }, /* close */ { &vop_access_desc, (VOPFUNC)cd9660_access }, /* access */ { &vop_getattr_desc, (VOPFUNC)cd9660_getattr }, /* getattr */ { &vop_setattr_desc, (VOPFUNC)cd9660_setattr }, /* setattr */ { &vop_read_desc, (VOPFUNC)spec_read }, /* read */ { &vop_write_desc, (VOPFUNC)spec_write }, /* write */ { &vop_lease_desc, (VOPFUNC)spec_lease_check }, /* lease */ { &vop_ioctl_desc, (VOPFUNC)spec_ioctl }, /* ioctl */ { &vop_select_desc, (VOPFUNC)spec_select }, /* select */ { &vop_mmap_desc, (VOPFUNC)spec_mmap }, /* mmap */ { &vop_fsync_desc, (VOPFUNC)spec_fsync }, /* fsync */ { &vop_seek_desc, (VOPFUNC)spec_seek }, /* seek */ { &vop_remove_desc, (VOPFUNC)spec_remove }, /* remove */ { &vop_link_desc, (VOPFUNC)spec_link }, /* link */ { &vop_rename_desc, (VOPFUNC)spec_rename }, /* rename */ { &vop_mkdir_desc, (VOPFUNC)spec_mkdir }, /* mkdir */ { &vop_rmdir_desc, (VOPFUNC)spec_rmdir }, /* rmdir */ { &vop_symlink_desc, (VOPFUNC)spec_symlink }, /* symlink */ { &vop_readdir_desc, (VOPFUNC)spec_readdir }, /* readdir */ { &vop_readlink_desc, (VOPFUNC)spec_readlink }, /* readlink */ { &vop_abortop_desc, (VOPFUNC)spec_abortop }, /* abortop */ { &vop_inactive_desc, (VOPFUNC)cd9660_inactive },/* inactive */ { &vop_reclaim_desc, (VOPFUNC)cd9660_reclaim }, /* reclaim */ { &vop_lock_desc, (VOPFUNC)cd9660_lock }, /* lock */ { &vop_unlock_desc, (VOPFUNC)cd9660_unlock }, /* unlock */ { &vop_bmap_desc, (VOPFUNC)spec_bmap }, /* bmap */ { &vop_strategy_desc, (VOPFUNC)spec_strategy }, /* strategy */ { &vop_print_desc, (VOPFUNC)cd9660_print }, /* print */ { &vop_islocked_desc, (VOPFUNC)cd9660_islocked },/* islocked */ { &vop_pathconf_desc, (VOPFUNC)spec_pathconf }, /* pathconf */ { &vop_advlock_desc, (VOPFUNC)spec_advlock }, /* advlock */ { &vop_blkatoff_desc, (VOPFUNC)spec_blkatoff }, /* blkatoff */ { &vop_valloc_desc, (VOPFUNC)spec_valloc }, /* valloc */ { &vop_vfree_desc, (VOPFUNC)spec_vfree }, /* vfree */ { &vop_truncate_desc, (VOPFUNC)spec_truncate }, /* truncate */ { &vop_update_desc, (VOPFUNC)cd9660_update }, /* update */ { &vop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vop_devblocksize_desc, (VOPFUNC)spec_devblocksize }, /* devblocksize */ { &vop_pagein_desc, (VOPFUNC)cd9660_pagein }, /* Pagein */ { &vop_pageout_desc, (VOPFUNC)cd9660_pageout }, /* Pageout */ { &vop_blktooff_desc, (VOPFUNC)cd9660_blktooff }, /* blktooff */ { &vop_offtoblk_desc, (VOPFUNC)cd9660_offtoblk }, /* offtoblk */ { &vop_cmap_desc, (VOPFUNC)cd9660_cmap }, /* cmap */ { (struct vnodeop_desc*)NULL, (VOPFUNC)NULL } }; struct vnodeopv_desc cd9660_specop_opv_desc = { &cd9660_specop_p, cd9660_specop_entries }; #if FIFO int (**cd9660_fifoop_p)(void *); struct vnodeopv_entry_desc cd9660_fifoop_entries[] = { { &vop_default_desc, (VOPFUNC)vn_default_error }, { &vop_lookup_desc, (VOPFUNC)fifo_lookup }, /* lookup */ { &vop_create_desc, (VOPFUNC)fifo_create }, /* create */ { &vop_mknod_desc, (VOPFUNC)fifo_mknod }, /* mknod */ { &vop_open_desc, (VOPFUNC)fifo_open }, /* open */ { &vop_close_desc, (VOPFUNC)fifo_close }, /* close */ { &vop_access_desc, (VOPFUNC)cd9660_access }, /* access */ { &vop_getattr_desc, (VOPFUNC)cd9660_getattr }, /* getattr */ { &vop_setattr_desc, (VOPFUNC)cd9660_setattr }, /* setattr */ { &vop_read_desc, (VOPFUNC)fifo_read }, /* read */ { &vop_write_desc, (VOPFUNC)fifo_write }, /* write */ { &vop_lease_desc, (VOPFUNC)fifo_lease_check }, /* lease */ { &vop_ioctl_desc, (VOPFUNC)fifo_ioctl }, /* ioctl */ { &vop_select_desc, (VOPFUNC)fifo_select }, /* select */ { &vop_mmap_desc, (VOPFUNC)fifo_mmap }, /* mmap */ { &vop_fsync_desc, (VOPFUNC)fifo_fsync }, /* fsync */ { &vop_seek_desc, (VOPFUNC)fifo_seek }, /* seek */ { &vop_remove_desc, (VOPFUNC)fifo_remove }, /* remove */ { &vop_link_desc, (VOPFUNC)fifo_link } , /* link */ { &vop_rename_desc, (VOPFUNC)fifo_rename }, /* rename */ { &vop_mkdir_desc, (VOPFUNC)fifo_mkdir }, /* mkdir */ { &vop_rmdir_desc, (VOPFUNC)fifo_rmdir }, /* rmdir */ { &vop_symlink_desc, (VOPFUNC)fifo_symlink }, /* symlink */ { &vop_readdir_desc, (VOPFUNC)fifo_readdir }, /* readdir */ { &vop_readlink_desc, (VOPFUNC)fifo_readlink }, /* readlink */ { &vop_abortop_desc, (VOPFUNC)fifo_abortop }, /* abortop */ { &vop_inactive_desc, (VOPFUNC)cd9660_inactive },/* inactive */ { &vop_reclaim_desc, (VOPFUNC)cd9660_reclaim }, /* reclaim */ { &vop_lock_desc, (VOPFUNC)cd9660_lock }, /* lock */ { &vop_unlock_desc, (VOPFUNC)cd9660_unlock }, /* unlock */ { &vop_bmap_desc, (VOPFUNC)fifo_bmap }, /* bmap */ { &vop_strategy_desc, (VOPFUNC)fifo_strategy }, /* strategy */ { &vop_print_desc, (VOPFUNC)cd9660_print }, /* print */ { &vop_islocked_desc, (VOPFUNC)cd9660_islocked },/* islocked */ { &vop_pathconf_desc, (VOPFUNC)fifo_pathconf }, /* pathconf */ { &vop_advlock_desc, (VOPFUNC)fifo_advlock }, /* advlock */ { &vop_blkatoff_desc, (VOPFUNC)fifo_blkatoff }, /* blkatoff */ { &vop_valloc_desc, (VOPFUNC)fifo_valloc }, /* valloc */ { &vop_vfree_desc, (VOPFUNC)fifo_vfree }, /* vfree */ { &vop_truncate_desc, (VOPFUNC)fifo_truncate }, /* truncate */ { &vop_update_desc, (VOPFUNC)cd9660_update }, /* update */ { &vop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vop_pagein_desc, (VOPFUNC)cd9660_pagein }, /* Pagein */ { &vop_pageout_desc, (VOPFUNC)cd9660_pageout }, /* Pageout */ { &vop_blktooff_desc, (VOPFUNC)cd9660_blktooff }, /* blktooff */ { &vop_offtoblk_desc, (VOPFUNC)cd9660_offtoblk }, /* offtoblk */ { (struct vnodeop_desc*)NULL, (VOPFUNC)NULL } }; struct vnodeopv_desc cd9660_fifoop_opv_desc = { &cd9660_fifoop_p, cd9660_fifoop_entries }; #endif /* FIFO */