742 lines
16 KiB
C
742 lines
16 KiB
C
/*
|
|
* Copyright (c) 1992 The Regents of the University of California
|
|
* Copyright (c) 1990, 1992 Jan-Simon Pendry
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software donated to Berkeley by
|
|
* Jan-Simon Pendry.
|
|
*
|
|
* 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.
|
|
*
|
|
* From:
|
|
* Id: kernfs_vnops.c,v 4.1 1994/01/02 14:41:30 jsp Exp
|
|
*
|
|
* $Id: kernfs_vnops.c,v 1.20 1994/02/14 19:46:18 ws Exp $
|
|
*/
|
|
|
|
/*
|
|
* Kernel parameter filesystem
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/file.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/namei.h>
|
|
#include <sys/buf.h>
|
|
#include <miscfs/kernfs/kernfs.h>
|
|
|
|
#include <ufs/dir.h> /* For readdir() XXX */
|
|
|
|
#define KSTRING 256 /* Largest I/O available via this filesystem */
|
|
#define UIO_MX 32
|
|
|
|
struct kern_target {
|
|
char *kt_name;
|
|
void *kt_data;
|
|
#define KTT_NULL 1
|
|
#define KTT_TIME 5
|
|
#define KTT_INT 17
|
|
#define KTT_STRING 31
|
|
#define KTT_HOSTNAME 47
|
|
#define KTT_AVENRUN 53
|
|
int kt_tag;
|
|
#define KTM_RO 0
|
|
#define KTM_RO_MODE \
|
|
((VREAD) | (VREAD >> 3) | (VREAD >> 6))
|
|
#define KTM_RW 43
|
|
#define KTM_RW_MODE \
|
|
((VWRITE) | KTM_RO_MODE)
|
|
#define KTM_DIR_MODE \
|
|
((VREAD|VEXEC) | ((VREAD|VEXEC) >> 3) | ((VREAD|VEXEC) >> 6))
|
|
int kt_rw;
|
|
enum vtype kt_vtype;
|
|
} kern_targets[] = {
|
|
/* NOTE: The name must be less than UIO_MX-16 chars in length */
|
|
/* name data tag ro/rw */
|
|
{ ".", 0, KTT_NULL, KTM_RO, VDIR },
|
|
{ "..", 0, KTT_NULL, KTM_RO, VDIR },
|
|
{ "copyright", copyright, KTT_STRING, KTM_RO, VREG },
|
|
{ "hostname", 0, KTT_HOSTNAME, KTM_RW, VREG },
|
|
{ "hz", &hz, KTT_INT, KTM_RO, VREG },
|
|
{ "loadavg", 0, KTT_AVENRUN, KTM_RO, VREG },
|
|
{ "physmem", &physmem, KTT_INT, KTM_RO, VREG },
|
|
#if 0
|
|
{ "root", 0, KTT_NULL, KTM_RO, VDIR },
|
|
#endif
|
|
{ "rootdev", 0, KTT_NULL, KTM_RO, VBLK },
|
|
#ifdef notdef
|
|
{ "rrootdev", 0, KTT_NULL, KTM_RO, VCHR },
|
|
#endif
|
|
{ "time", 0, KTT_TIME, KTM_RO, VREG },
|
|
{ "version", version, KTT_STRING, KTM_RO, VREG },
|
|
};
|
|
|
|
static int nkern_targets = sizeof(kern_targets) / sizeof(kern_targets[0]);
|
|
|
|
static int
|
|
kernfs_xread(kt, buf, len, lenp)
|
|
struct kern_target *kt;
|
|
char *buf;
|
|
int len;
|
|
int *lenp;
|
|
{
|
|
int xlen;
|
|
|
|
switch (kt->kt_tag) {
|
|
case KTT_TIME: {
|
|
struct timeval tv;
|
|
microtime(&tv);
|
|
sprintf(buf, "%d %d\n", tv.tv_sec, tv.tv_usec);
|
|
break;
|
|
}
|
|
|
|
case KTT_INT: {
|
|
int *ip = kt->kt_data;
|
|
sprintf(buf, "%d\n", *ip);
|
|
break;
|
|
}
|
|
|
|
case KTT_STRING: {
|
|
char *cp = kt->kt_data;
|
|
int xlen = strlen(cp) + 1;
|
|
|
|
if (xlen >= len)
|
|
return (EINVAL);
|
|
|
|
bcopy(cp, buf, xlen);
|
|
break;
|
|
}
|
|
|
|
case KTT_HOSTNAME: {
|
|
char *cp = hostname;
|
|
int xlen = hostnamelen;
|
|
|
|
if (xlen >= (len-2))
|
|
return (EINVAL);
|
|
|
|
bcopy(cp, buf, xlen);
|
|
buf[xlen] = '\n';
|
|
buf[xlen+1] = '\0';
|
|
break;
|
|
}
|
|
|
|
case KTT_AVENRUN:
|
|
sprintf(buf, "%d %d %d %d\n",
|
|
averunnable.ldavg[0],
|
|
averunnable.ldavg[1],
|
|
averunnable.ldavg[2],
|
|
averunnable.fscale);
|
|
break;
|
|
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
|
|
*lenp = strlen(buf);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
kernfs_xwrite(kt, buf, len)
|
|
struct kern_target *kt;
|
|
char *buf;
|
|
int len;
|
|
{
|
|
switch (kt->kt_tag) {
|
|
case KTT_HOSTNAME: {
|
|
if (buf[len-1] == '\n')
|
|
--len;
|
|
bcopy(buf, hostname, len);
|
|
hostname[len] = '\0';
|
|
hostnamelen = len;
|
|
return (0);
|
|
}
|
|
|
|
default:
|
|
return (EIO);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* implement access checking.
|
|
*
|
|
* something very similar to this code is duplicated
|
|
* throughout the 4bsd kernel and should be moved
|
|
* into kern/vfs_subr.c sometime.
|
|
*
|
|
* actually, the check for super-user is slightly
|
|
* broken since it will allow read access to write-only
|
|
* objects. this doesn't cause any particular trouble
|
|
* but does mean that the i/o entry points need to check
|
|
* that the operation really does make sense.
|
|
*/
|
|
kernfs_access(vp, mode, cred, p)
|
|
struct vnode *vp;
|
|
int mode;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
{
|
|
struct vattr *vap;
|
|
struct vattr vattr;
|
|
int error;
|
|
|
|
/*
|
|
* If you're the super-user,
|
|
* you always get access.
|
|
*/
|
|
if (cred->cr_uid == (uid_t) 0)
|
|
return (0);
|
|
vap = &vattr;
|
|
if (error = VOP_GETATTR(vp, vap, cred, p))
|
|
return (error);
|
|
|
|
/*
|
|
* Access check is based on only one of owner, group, public.
|
|
* If not owner, then check group. If not a member of the
|
|
* group, then check public access.
|
|
*/
|
|
if (cred->cr_uid != vap->va_uid) {
|
|
gid_t *gp;
|
|
int i;
|
|
|
|
mode >>= 3;
|
|
gp = cred->cr_groups;
|
|
for (i = 0; i < cred->cr_ngroups; i++, gp++)
|
|
if (vap->va_gid == *gp)
|
|
goto found;
|
|
mode >>= 3;
|
|
found:
|
|
;
|
|
}
|
|
|
|
if ((vap->va_mode & mode) == mode)
|
|
return (0);
|
|
|
|
return (EACCES);
|
|
}
|
|
|
|
/*
|
|
* vp is the current namei directory
|
|
* ndp is the name to locate in that directory...
|
|
*/
|
|
kernfs_lookup(dvp, ndp, p)
|
|
struct vnode *dvp;
|
|
struct nameidata *ndp;
|
|
struct proc *p;
|
|
{
|
|
char *pname = ndp->ni_ptr;
|
|
int error = ENOENT;
|
|
int i;
|
|
struct vnode *fvp;
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_lookup(%s)\n", pname);
|
|
#endif
|
|
if (ndp->ni_namelen == 1 && *pname == '.') {
|
|
ndp->ni_dvp = dvp;
|
|
ndp->ni_vp = dvp;
|
|
VREF(dvp);
|
|
/*VOP_LOCK(dvp);*/
|
|
return (0);
|
|
}
|
|
|
|
#if 0
|
|
if (ndp->ni_namelen == 4 && bcmp(pname, "root", 4) == 0) {
|
|
ndp->ni_dvp = rootdir;
|
|
ndp->ni_vp = rootdir;
|
|
VREF(rootdir);
|
|
VREF(rootdir);
|
|
VOP_LOCK(rootdir);
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* /kern/rootdev is the root device
|
|
*/
|
|
if (ndp->ni_namelen == 7 && bcmp(pname, "rootdev", 7) == 0) {
|
|
if (vfinddev(rootdev, VBLK, &fvp))
|
|
return (ENXIO);
|
|
ndp->ni_dvp = dvp;
|
|
ndp->ni_vp = fvp;
|
|
VREF(fvp);
|
|
VOP_LOCK(fvp);
|
|
return (0);
|
|
}
|
|
|
|
for (i = 0; i < nkern_targets; i++) {
|
|
struct kern_target *kt = &kern_targets[i];
|
|
if (ndp->ni_namelen == strlen(kt->kt_name) &&
|
|
bcmp(kt->kt_name, pname, ndp->ni_namelen) == 0) {
|
|
error = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_lookup: i = %d, error = %d\n", i, error);
|
|
#endif
|
|
|
|
if (error)
|
|
goto bad;
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_lookup: allocate new vnode\n");
|
|
#endif
|
|
error = getnewvnode(VT_KERNFS, dvp->v_mount, &kernfs_vnodeops, &fvp);
|
|
if (error)
|
|
goto bad;
|
|
VTOKERN(fvp)->kf_kt = &kern_targets[i];
|
|
fvp->v_type = VTOKERN(fvp)->kf_kt->kt_vtype;
|
|
ndp->ni_dvp = dvp;
|
|
ndp->ni_vp = fvp;
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_lookup: newvp = %x\n", fvp);
|
|
#endif
|
|
return (0);
|
|
|
|
bad:;
|
|
ndp->ni_dvp = dvp;
|
|
ndp->ni_vp = NULL;
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_lookup: error = %d\n", error);
|
|
#endif
|
|
return (error);
|
|
}
|
|
|
|
kernfs_open(vp, mode, cred, p)
|
|
struct vnode *vp;
|
|
int mode;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
{
|
|
int error;
|
|
struct filedesc *fdp;
|
|
struct file *fp;
|
|
int dfd;
|
|
int fd;
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_open\n");
|
|
#endif
|
|
|
|
/*
|
|
* Can always open the root (modulo perms)
|
|
*/
|
|
if (vp->v_flag & VROOT)
|
|
return (0);
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_open, mode = %x, file = %s\n",
|
|
mode, VTOKERN(vp)->kf_kt->kt_name);
|
|
#endif
|
|
|
|
if ((mode & FWRITE) && VTOKERN(vp)->kf_kt->kt_rw != KTM_RW)
|
|
return (EACCES);
|
|
|
|
return (0);
|
|
}
|
|
|
|
kernfs_getattr(vp, vap, cred, p)
|
|
struct vnode *vp;
|
|
struct vattr *vap;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
{
|
|
int error = 0;
|
|
char strbuf[KSTRING];
|
|
struct kern_target *kt = VTOKERN(vp)->kf_kt;
|
|
|
|
bzero((caddr_t) vap, sizeof(*vap));
|
|
vattr_null(vap);
|
|
vap->va_uid = 0;
|
|
vap->va_gid = 0;
|
|
vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
|
|
/* vap->va_qsize = 0; */
|
|
vap->va_blocksize = DEV_BSIZE;
|
|
microtime(&vap->va_atime);
|
|
vap->va_mtime = vap->va_atime;
|
|
vap->va_ctime = vap->va_ctime;
|
|
vap->va_gen = 0;
|
|
vap->va_flags = 0;
|
|
vap->va_rdev = 0;
|
|
/* vap->va_qbytes = 0; */
|
|
vap->va_bytes = 0;
|
|
|
|
if (vp->v_flag & VROOT) {
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_getattr: stat rootdir\n");
|
|
#endif
|
|
vap->va_type = VDIR;
|
|
vap->va_mode = KTM_DIR_MODE;
|
|
vap->va_nlink = 2;
|
|
vap->va_fileid = 2;
|
|
vap->va_size = DEV_BSIZE;
|
|
} else {
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_getattr: stat target %s\n", kt->kt_name);
|
|
#endif
|
|
vap->va_type = kt->kt_vtype;
|
|
vap->va_mode = (kt->kt_rw ? KTM_RW_MODE : KTM_RO_MODE);
|
|
vap->va_nlink = 1;
|
|
vap->va_fileid = 3 + (kt - kern_targets) / sizeof(*kt);
|
|
error = kernfs_xread(kt, strbuf, sizeof(strbuf), &vap->va_size);
|
|
}
|
|
|
|
vp->v_type = vap->va_type;
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_getattr: return error %d\n", error);
|
|
#endif
|
|
return (error);
|
|
}
|
|
|
|
kernfs_setattr(vp, vap, cred, p)
|
|
struct vnode *vp;
|
|
struct vattr *vap;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
{
|
|
|
|
/*
|
|
* Silently ignore attribute changes.
|
|
* This allows for open with truncate to have no
|
|
* effect until some data is written. I want to
|
|
* do it this way because all writes are atomic.
|
|
*/
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
kernfs_read(vp, uio, ioflag, cred)
|
|
struct vnode *vp;
|
|
struct uio *uio;
|
|
int ioflag;
|
|
struct ucred *cred;
|
|
{
|
|
struct kern_target *kt = VTOKERN(vp)->kf_kt;
|
|
char strbuf[KSTRING];
|
|
int off = uio->uio_offset;
|
|
int len = 0;
|
|
char *cp = strbuf;
|
|
int error;
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kern_read %s\n", kt->kt_name);
|
|
#endif
|
|
|
|
if (vp->v_flag & VROOT)
|
|
return (EOPNOTSUPP);
|
|
|
|
error = kernfs_xread(kt, strbuf, sizeof(strbuf), &len);
|
|
if (error)
|
|
return (error);
|
|
cp = strbuf + off;
|
|
len -= off;
|
|
return (uiomove(cp, len, uio));
|
|
}
|
|
|
|
static int
|
|
kernfs_write(vp, uio, ioflag, cred)
|
|
struct vnode *vp;
|
|
struct uio *uio;
|
|
int ioflag;
|
|
struct ucred *cred;
|
|
{
|
|
struct kern_target *kt = VTOKERN(vp)->kf_kt;
|
|
char strbuf[KSTRING];
|
|
int len = uio->uio_resid;
|
|
char *cp = strbuf;
|
|
int xlen;
|
|
int error;
|
|
|
|
if (uio->uio_offset != 0)
|
|
return (EINVAL);
|
|
|
|
xlen = min(uio->uio_resid, KSTRING-1);
|
|
error = uiomove(strbuf, xlen, uio);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (uio->uio_resid != 0)
|
|
return (EIO);
|
|
|
|
strbuf[xlen] = '\0';
|
|
xlen = strlen(strbuf);
|
|
return (kernfs_xwrite(kt, strbuf, xlen));
|
|
}
|
|
|
|
kernfs_readdir(vp, uio, cred, eofflagp)
|
|
struct vnode *vp;
|
|
struct uio *uio;
|
|
struct ucred *cred;
|
|
int *eofflagp;
|
|
{
|
|
struct filedesc *fdp;
|
|
int i;
|
|
int error;
|
|
|
|
i = uio->uio_offset / UIO_MX;
|
|
error = 0;
|
|
while (uio->uio_resid > 0) {
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_readdir: i = %d\n", i);
|
|
#endif
|
|
if (i >= nkern_targets) {
|
|
*eofflagp = 1;
|
|
break;
|
|
}
|
|
{
|
|
struct direct d;
|
|
struct direct *dp = &d;
|
|
struct kern_target *kt = &kern_targets[i];
|
|
|
|
bzero((caddr_t) dp, UIO_MX);
|
|
|
|
dp->d_namlen = strlen(kt->kt_name);
|
|
bcopy(kt->kt_name, dp->d_name, dp->d_namlen+1);
|
|
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_readdir: name = %s, len = %d\n",
|
|
dp->d_name, dp->d_namlen);
|
|
#endif
|
|
/*
|
|
* Fill in the remaining fields
|
|
*/
|
|
dp->d_reclen = UIO_MX;
|
|
dp->d_ino = i + 3;
|
|
/*
|
|
* And ship to userland
|
|
*/
|
|
error = uiomove((caddr_t) dp, UIO_MX, uio);
|
|
if (error)
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
uio->uio_offset = i * UIO_MX;
|
|
|
|
return (error);
|
|
}
|
|
|
|
kernfs_inactive(vp, p)
|
|
struct vnode *vp;
|
|
struct proc *p;
|
|
{
|
|
/*
|
|
* Clear out the v_type field to avoid
|
|
* nasty things happening in vgone().
|
|
*/
|
|
vp->v_type = VNON;
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
printf("kernfs_inactive(%x)\n", vp);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Print out the contents of a kernfs vnode.
|
|
*/
|
|
/* ARGSUSED */
|
|
kernfs_print(vp)
|
|
struct vnode *vp;
|
|
{
|
|
printf("tag VT_NON, kernfs vnode\n");
|
|
}
|
|
|
|
/*
|
|
* kernfs vnode unsupported operation
|
|
*/
|
|
kernfs_enotsupp()
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
/*
|
|
* kernfs "should never get here" operation
|
|
*/
|
|
kernfs_badop()
|
|
{
|
|
panic("kernfs: bad op");
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/*
|
|
* kernfs vnode null operation
|
|
*/
|
|
kernfs_nullop()
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
#define kernfs_create ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct vattr *vap, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_mknod ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct vattr *vap, \
|
|
struct ucred *cred, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_close ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
int fflag, \
|
|
struct ucred *cred, \
|
|
struct proc *p))) nullop)
|
|
#define kernfs_ioctl ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
int command, \
|
|
caddr_t data, \
|
|
int fflag, \
|
|
struct ucred *cred, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_select ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
int which, \
|
|
int fflags, \
|
|
struct ucred *cred, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_mmap ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
int fflags, \
|
|
struct ucred *cred, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_fsync ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
int fflags, \
|
|
struct ucred *cred, \
|
|
int waitfor, \
|
|
struct proc *p))) nullop)
|
|
#define kernfs_seek ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
off_t oldoff, \
|
|
off_t newoff, \
|
|
struct ucred *cred))) nullop)
|
|
#define kernfs_remove ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_link ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
struct nameidata *ndp, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_rename ((int (*) __P(( \
|
|
struct nameidata *fndp, \
|
|
struct nameidata *tdnp, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_mkdir ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct vattr *vap, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_rmdir ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_symlink ((int (*) __P(( \
|
|
struct nameidata *ndp, \
|
|
struct vattr *vap, \
|
|
char *target, \
|
|
struct proc *p))) kernfs_enotsupp)
|
|
#define kernfs_readlink ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
struct uio *uio, \
|
|
struct ucred *cred))) kernfs_enotsupp)
|
|
#define kernfs_abortop ((int (*) __P(( \
|
|
struct nameidata *ndp))) nullop)
|
|
#ifdef KERNFS_DIAGNOSTIC
|
|
int kernfs_reclaim(vp)
|
|
struct vnode *vp;
|
|
{
|
|
printf("kernfs_reclaim(%x)\n", vp);
|
|
return (0);
|
|
}
|
|
#else
|
|
#define kernfs_reclaim ((int (*) __P(( \
|
|
struct vnode *vp))) nullop)
|
|
#endif
|
|
#define kernfs_lock ((int (*) __P(( \
|
|
struct vnode *vp))) nullop)
|
|
#define kernfs_unlock ((int (*) __P(( \
|
|
struct vnode *vp))) nullop)
|
|
#define kernfs_bmap ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
daddr_t bn, \
|
|
struct vnode **vpp, \
|
|
daddr_t *bnp))) kernfs_badop)
|
|
#define kernfs_strategy ((int (*) __P(( \
|
|
struct buf *bp))) kernfs_badop)
|
|
#define kernfs_islocked ((int (*) __P(( \
|
|
struct vnode *vp))) nullop)
|
|
#define kernfs_advlock ((int (*) __P(( \
|
|
struct vnode *vp, \
|
|
caddr_t id, \
|
|
int op, \
|
|
struct flock *fl, \
|
|
int flags))) kernfs_enotsupp)
|
|
|
|
struct vnodeops kernfs_vnodeops = {
|
|
kernfs_lookup, /* lookup */
|
|
kernfs_create, /* create */
|
|
kernfs_mknod, /* mknod */
|
|
kernfs_open, /* open */
|
|
kernfs_close, /* close */
|
|
kernfs_access, /* access */
|
|
kernfs_getattr, /* getattr */
|
|
kernfs_setattr, /* setattr */
|
|
kernfs_read, /* read */
|
|
kernfs_write, /* write */
|
|
kernfs_ioctl, /* ioctl */
|
|
kernfs_select, /* select */
|
|
kernfs_mmap, /* mmap */
|
|
kernfs_fsync, /* fsync */
|
|
kernfs_seek, /* seek */
|
|
kernfs_remove, /* remove */
|
|
kernfs_link, /* link */
|
|
kernfs_rename, /* rename */
|
|
kernfs_mkdir, /* mkdir */
|
|
kernfs_rmdir, /* rmdir */
|
|
kernfs_symlink, /* symlink */
|
|
kernfs_readdir, /* readdir */
|
|
kernfs_readlink, /* readlink */
|
|
kernfs_abortop, /* abortop */
|
|
kernfs_inactive, /* inactive */
|
|
kernfs_reclaim, /* reclaim */
|
|
kernfs_lock, /* lock */
|
|
kernfs_unlock, /* unlock */
|
|
kernfs_bmap, /* bmap */
|
|
kernfs_strategy, /* strategy */
|
|
kernfs_print, /* print */
|
|
kernfs_islocked, /* islocked */
|
|
kernfs_advlock, /* advlock */
|
|
};
|