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freebsd/sys/fs/cd9660/cd9660_vnops.c
Poul-Henning Kamp 539ef70c2d Stylistic overhaul of vnops tables.
1. Remove comment stating the blatantly obvious.
        2. Align in two columns.
        3. Sort all but the default element alphabetically.
        4. Remove XXX comments pointing out entries not needed.
1997-10-15 09:22:02 +00:00

1153 lines
30 KiB
C

/*-
* 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 8.19 (Berkeley) 5/27/95
* $Id: cd9660_vnops.c,v 1.40 1997/09/27 13:38:51 kato Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/kernel.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/buf.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <miscfs/specfs/specdev.h>
#include <miscfs/fifofs/fifo.h>
#include <sys/malloc.h>
#include <sys/dirent.h>
#include <sys/unistd.h>
#include <isofs/cd9660/iso.h>
#include <isofs/cd9660/cd9660_node.h>
#include <isofs/cd9660/iso_rrip.h>
static int cd9660_setattr __P((struct vop_setattr_args *));
static int cd9660_open __P((struct vop_open_args *));
static int cd9660_close __P((struct vop_close_args *));
static int cd9660_access __P((struct vop_access_args *));
static int cd9660_getattr __P((struct vop_getattr_args *));
static int cd9660_read __P((struct vop_read_args *));
static int cd9660_ioctl __P((struct vop_ioctl_args *));
static int cd9660_mmap __P((struct vop_mmap_args *));
static int cd9660_seek __P((struct vop_seek_args *));
struct isoreaddir;
static int iso_uiodir __P((struct isoreaddir *idp, struct dirent *dp,
off_t off));
static int iso_shipdir __P((struct isoreaddir *idp));
static int cd9660_readdir __P((struct vop_readdir_args *));
static int cd9660_readlink __P((struct vop_readlink_args *ap));
static int cd9660_abortop __P((struct vop_abortop_args *));
static int cd9660_lock __P((struct vop_lock_args *));
static int cd9660_unlock __P((struct vop_unlock_args *));
static int cd9660_strategy __P((struct vop_strategy_args *));
static int cd9660_print __P((struct vop_print_args *));
static int cd9660_islocked __P((struct vop_islocked_args *));
/*
* Setattr call. Only allowed for block and character special devices.
*/
int
cd9660_setattr(ap)
struct vop_setattr_args /* {
struct vnodeop_desc *a_desc;
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
} */ *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:
return (0);
}
}
return (0);
}
/*
* Open called.
*
* Nothing to do.
*/
/* ARGSUSED */
static 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 */
static 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 */
static 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;
gid_t *gp;
int i;
/*
* Disallow write attempts 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);
}
}
/* 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);
}
static 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;
vap->va_type = vp->v_type;
vap->va_filerev = 0;
return (0);
}
/*
* Vnode op for reading.
*/
static 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;
if (uio->uio_resid == 0)
return (0);
if (uio->uio_offset < 0)
return (EINVAL);
ip->i_flag |= IN_ACCESS;
imp = ip->i_mnt;
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_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), &bp);
else
error = bread(vp, lbn, size, NOCRED, &bp);
} else {
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);
brelse(bp);
} while (error == 0 && uio->uio_resid > 0 && n != 0);
return (error);
}
/* ARGSUSED */
static 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);
}
/*
* Mmap a file
*
* NB Currently unsupported.
*/
/* ARGSUSED */
static 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 */
static 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 assocent;
struct dirent current;
off_t saveoff;
off_t assocoff;
off_t curroff;
struct uio *uio;
off_t uio_off;
int eofflag;
u_long *cookies;
int ncookies;
};
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 = GENERIC_DIRSIZ(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((caddr_t) dp,dp->d_reclen,idp->uio))
return (error);
idp->uio_off = off;
return (0);
}
int
iso_shipdir(idp)
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))
return (error);
idp->assocent.d_namlen = 0;
}
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 = GENERIC_DIRSIZ(&idp->current);
if (assoc) {
idp->assocoff = idp->curroff;
bcopy(&idp->current,&idp->assocent,idp->current.d_reclen);
} else {
idp->saveoff = idp->curroff;
bcopy(&idp->current,&idp->saveent,idp->current.d_reclen);
}
return (0);
}
/*
* Vnode op for readdir
*/
static int
cd9660_readdir(ap)
struct vop_readdir_args /* {
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;
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;
int ncookies = 0;
u_long *cookies = NULL;
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 = 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;
MALLOC(cookies, u_long *, ncookies * sizeof(u_int), M_TEMP,
M_WAITOK);
idp->cookies = cookies;
idp->ncookies = ncookies;
}
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;
}
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;
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;
default: /* ISO_FTYPE_DEFAULT || ISO_FTYPE_9660 || ISO_FTYPE_HIGH_SIERRA*/
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,
isonum_711(ep->flags)&4);
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 < 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(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->im_bshift - DEV_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)
> (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 = zalloc(namei_zone);
/*
* 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)
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);
zfree(namei_zone, symname);
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.
*/
static 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)
zfree(namei_zone, ap->a_cnp->cn_pnbuf);
return (0);
}
/*
* Lock an inode.
*/
static 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;
return (lockmgr(&VTOI(vp)->i_lock, ap->a_flags, &vp->v_interlock,
ap->a_p));
}
/*
* Unlock an inode.
*/
static 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.
*/
static 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, 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.
*/
static 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:
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_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 */
}
/*
* Global vfs data structures for isofs
*/
#define cd9660_create \
((int (*) __P((struct vop_create_args *)))eopnotsupp)
#define cd9660_mknod ((int (*) __P((struct vop_mknod_args *)))eopnotsupp)
#define cd9660_write ((int (*) __P((struct vop_write_args *)))eopnotsupp)
#ifdef NFS
#define cd9660_lease_check lease_check
#else
#define cd9660_lease_check ((int (*) __P((struct vop_lease_args *)))nullop)
#endif
#define cd9660_poll vop_nopoll
#define cd9660_fsync ((int (*) __P((struct vop_fsync_args *)))nullop)
#define cd9660_remove \
((int (*) __P((struct vop_remove_args *)))eopnotsupp)
#define cd9660_link ((int (*) __P((struct vop_link_args *)))eopnotsupp)
#define cd9660_rename \
((int (*) __P((struct vop_rename_args *)))eopnotsupp)
#define cd9660_mkdir ((int (*) __P((struct vop_mkdir_args *)))eopnotsupp)
#define cd9660_rmdir ((int (*) __P((struct vop_rmdir_args *)))eopnotsupp)
#define cd9660_symlink \
((int (*) __P((struct vop_symlink_args *)))eopnotsupp)
#define cd9660_advlock \
((int (*) __P((struct vop_advlock_args *)))eopnotsupp)
#define cd9660_valloc ((int(*) __P(( \
struct vnode *pvp, \
int mode, \
struct ucred *cred, \
struct vnode **vpp))) eopnotsupp)
#define cd9660_vfree ((int (*) __P((struct vop_vfree_args *)))eopnotsupp)
#define cd9660_truncate \
((int (*) __P((struct vop_truncate_args *)))eopnotsupp)
#define cd9660_update \
((int (*) __P((struct vop_update_args *)))eopnotsupp)
#define cd9660_bwrite \
((int (*) __P((struct vop_bwrite_args *)))eopnotsupp)
/*
* Global vfs data structures for cd9660
*/
vop_t **cd9660_vnodeop_p;
struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = {
{ &vop_default_desc, (vop_t *) vn_default_error },
{ &vop_abortop_desc, (vop_t *) cd9660_abortop },
{ &vop_access_desc, (vop_t *) cd9660_access },
{ &vop_advlock_desc, (vop_t *) cd9660_advlock },
{ &vop_blkatoff_desc, (vop_t *) cd9660_blkatoff },
{ &vop_bmap_desc, (vop_t *) cd9660_bmap },
{ &vop_bwrite_desc, (vop_t *) vn_bwrite },
{ &vop_cachedlookup_desc, (vop_t *) cd9660_lookup },
{ &vop_close_desc, (vop_t *) cd9660_close },
{ &vop_create_desc, (vop_t *) cd9660_create },
{ &vop_fsync_desc, (vop_t *) cd9660_fsync },
{ &vop_getattr_desc, (vop_t *) cd9660_getattr },
{ &vop_inactive_desc, (vop_t *) cd9660_inactive },
{ &vop_ioctl_desc, (vop_t *) cd9660_ioctl },
{ &vop_islocked_desc, (vop_t *) cd9660_islocked },
{ &vop_lease_desc, (vop_t *) cd9660_lease_check },
{ &vop_link_desc, (vop_t *) cd9660_link },
{ &vop_lock_desc, (vop_t *) cd9660_lock },
{ &vop_lookup_desc, (vop_t *) vfs_cache_lookup },
{ &vop_mkdir_desc, (vop_t *) cd9660_mkdir },
{ &vop_mknod_desc, (vop_t *) cd9660_mknod },
{ &vop_mmap_desc, (vop_t *) cd9660_mmap },
{ &vop_open_desc, (vop_t *) cd9660_open },
{ &vop_pathconf_desc, (vop_t *) cd9660_pathconf },
{ &vop_poll_desc, (vop_t *) cd9660_poll },
{ &vop_print_desc, (vop_t *) cd9660_print },
{ &vop_read_desc, (vop_t *) cd9660_read },
{ &vop_readdir_desc, (vop_t *) cd9660_readdir },
{ &vop_readlink_desc, (vop_t *) cd9660_readlink },
{ &vop_reclaim_desc, (vop_t *) cd9660_reclaim },
{ &vop_remove_desc, (vop_t *) cd9660_remove },
{ &vop_rename_desc, (vop_t *) cd9660_rename },
{ &vop_revoke_desc, (vop_t *) cd9660_revoke },
{ &vop_rmdir_desc, (vop_t *) cd9660_rmdir },
{ &vop_seek_desc, (vop_t *) cd9660_seek },
{ &vop_setattr_desc, (vop_t *) cd9660_setattr },
{ &vop_strategy_desc, (vop_t *) cd9660_strategy },
{ &vop_symlink_desc, (vop_t *) cd9660_symlink },
{ &vop_truncate_desc, (vop_t *) cd9660_truncate },
{ &vop_unlock_desc, (vop_t *) cd9660_unlock },
{ &vop_update_desc, (vop_t *) cd9660_update },
{ &vop_valloc_desc, (vop_t *) cd9660_valloc },
{ &vop_vfree_desc, (vop_t *) cd9660_vfree },
{ &vop_write_desc, (vop_t *) cd9660_write },
{ NULL, NULL }
};
static struct vnodeopv_desc cd9660_vnodeop_opv_desc =
{ &cd9660_vnodeop_p, cd9660_vnodeop_entries };
VNODEOP_SET(cd9660_vnodeop_opv_desc);
/*
* Special device vnode ops
*/
vop_t **cd9660_specop_p;
struct vnodeopv_entry_desc cd9660_specop_entries[] = {
{ &vop_default_desc, (vop_t *) vn_default_error },
{ &vop_abortop_desc, (vop_t *) spec_abortop },
{ &vop_access_desc, (vop_t *) cd9660_access },
{ &vop_advlock_desc, (vop_t *) spec_advlock },
{ &vop_blkatoff_desc, (vop_t *) spec_blkatoff },
{ &vop_bmap_desc, (vop_t *) spec_bmap },
{ &vop_bwrite_desc, (vop_t *) vn_bwrite },
{ &vop_close_desc, (vop_t *) spec_close },
{ &vop_create_desc, (vop_t *) spec_create },
{ &vop_fsync_desc, (vop_t *) spec_fsync },
{ &vop_getattr_desc, (vop_t *) cd9660_getattr },
{ &vop_inactive_desc, (vop_t *) cd9660_inactive },
{ &vop_ioctl_desc, (vop_t *) spec_ioctl },
{ &vop_islocked_desc, (vop_t *) cd9660_islocked },
{ &vop_lease_desc, (vop_t *) spec_lease_check },
{ &vop_link_desc, (vop_t *) spec_link },
{ &vop_lock_desc, (vop_t *) cd9660_lock },
{ &vop_lookup_desc, (vop_t *) spec_lookup },
{ &vop_mkdir_desc, (vop_t *) spec_mkdir },
{ &vop_mknod_desc, (vop_t *) spec_mknod },
{ &vop_mmap_desc, (vop_t *) spec_mmap },
{ &vop_open_desc, (vop_t *) spec_open },
{ &vop_pathconf_desc, (vop_t *) spec_pathconf },
{ &vop_poll_desc, (vop_t *) spec_poll },
{ &vop_print_desc, (vop_t *) cd9660_print },
{ &vop_read_desc, (vop_t *) spec_read },
{ &vop_readdir_desc, (vop_t *) spec_readdir },
{ &vop_readlink_desc, (vop_t *) spec_readlink },
{ &vop_reclaim_desc, (vop_t *) cd9660_reclaim },
{ &vop_remove_desc, (vop_t *) spec_remove },
{ &vop_rename_desc, (vop_t *) spec_rename },
{ &vop_revoke_desc, (vop_t *) spec_revoke },
{ &vop_rmdir_desc, (vop_t *) spec_rmdir },
{ &vop_seek_desc, (vop_t *) spec_seek },
{ &vop_setattr_desc, (vop_t *) cd9660_setattr },
{ &vop_strategy_desc, (vop_t *) spec_strategy },
{ &vop_symlink_desc, (vop_t *) spec_symlink },
{ &vop_truncate_desc, (vop_t *) spec_truncate },
{ &vop_unlock_desc, (vop_t *) cd9660_unlock },
{ &vop_update_desc, (vop_t *) cd9660_update },
{ &vop_valloc_desc, (vop_t *) spec_valloc },
{ &vop_vfree_desc, (vop_t *) spec_vfree },
{ &vop_write_desc, (vop_t *) spec_write },
{ NULL, NULL }
};
static struct vnodeopv_desc cd9660_specop_opv_desc =
{ &cd9660_specop_p, cd9660_specop_entries };
VNODEOP_SET(cd9660_specop_opv_desc);
vop_t **cd9660_fifoop_p;
struct vnodeopv_entry_desc cd9660_fifoop_entries[] = {
{ &vop_default_desc, (vop_t *) vn_default_error },
{ &vop_abortop_desc, (vop_t *) fifo_abortop },
{ &vop_access_desc, (vop_t *) cd9660_access },
{ &vop_advlock_desc, (vop_t *) fifo_advlock },
{ &vop_blkatoff_desc, (vop_t *) fifo_blkatoff },
{ &vop_bmap_desc, (vop_t *) fifo_bmap },
{ &vop_bwrite_desc, (vop_t *) vn_bwrite },
{ &vop_close_desc, (vop_t *) fifo_close },
{ &vop_create_desc, (vop_t *) fifo_create },
{ &vop_fsync_desc, (vop_t *) fifo_fsync },
{ &vop_getattr_desc, (vop_t *) cd9660_getattr },
{ &vop_inactive_desc, (vop_t *) cd9660_inactive },
{ &vop_ioctl_desc, (vop_t *) fifo_ioctl },
{ &vop_islocked_desc, (vop_t *) cd9660_islocked },
{ &vop_lease_desc, (vop_t *) fifo_lease_check },
{ &vop_link_desc, (vop_t *) fifo_link },
{ &vop_lock_desc, (vop_t *) cd9660_lock },
{ &vop_lookup_desc, (vop_t *) fifo_lookup },
{ &vop_mkdir_desc, (vop_t *) fifo_mkdir },
{ &vop_mknod_desc, (vop_t *) fifo_mknod },
{ &vop_mmap_desc, (vop_t *) fifo_mmap },
{ &vop_open_desc, (vop_t *) fifo_open },
{ &vop_pathconf_desc, (vop_t *) fifo_pathconf },
{ &vop_poll_desc, (vop_t *) fifo_poll },
{ &vop_print_desc, (vop_t *) cd9660_print },
{ &vop_read_desc, (vop_t *) fifo_read },
{ &vop_readdir_desc, (vop_t *) fifo_readdir },
{ &vop_readlink_desc, (vop_t *) fifo_readlink },
{ &vop_reclaim_desc, (vop_t *) cd9660_reclaim },
{ &vop_remove_desc, (vop_t *) fifo_remove },
{ &vop_rename_desc, (vop_t *) fifo_rename },
{ &vop_revoke_desc, (vop_t *) fifo_revoke },
{ &vop_rmdir_desc, (vop_t *) fifo_rmdir },
{ &vop_seek_desc, (vop_t *) fifo_seek },
{ &vop_setattr_desc, (vop_t *) cd9660_setattr },
{ &vop_strategy_desc, (vop_t *) fifo_strategy },
{ &vop_symlink_desc, (vop_t *) fifo_symlink },
{ &vop_truncate_desc, (vop_t *) fifo_truncate },
{ &vop_unlock_desc, (vop_t *) cd9660_unlock },
{ &vop_update_desc, (vop_t *) cd9660_update },
{ &vop_valloc_desc, (vop_t *) fifo_valloc },
{ &vop_vfree_desc, (vop_t *) fifo_vfree },
{ &vop_write_desc, (vop_t *) fifo_write },
{ NULL, NULL }
};
static struct vnodeopv_desc cd9660_fifoop_opv_desc =
{ &cd9660_fifoop_p, cd9660_fifoop_entries };
VNODEOP_SET(cd9660_fifoop_opv_desc);