801 lines
18 KiB
C
801 lines
18 KiB
C
/*
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* Copyright (c) 1990, 1992 Jan-Simon Pendry
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: kernfs_vnops.c,v 1.10 1993/06/07 05:25:25 cgd Exp $
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*/
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/*
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* Kernel parameter filesystem
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*/
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#include "param.h"
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#include "systm.h"
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#include "kernel.h"
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#include "types.h"
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#include "time.h"
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#include "proc.h"
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#include "file.h"
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#include "vnode.h"
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#include "stat.h"
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#include "mount.h"
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#include "namei.h"
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#include "buf.h"
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#include "miscfs/kernfs/kernfs.h"
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#include "../ufs/dir.h" /* For readdir() XXX */
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struct kernfs_target kernfs_targets[] = {
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/* NOTE: The name must be less than UIO_MX-16 chars in length */
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DIR_TARGET(".", 0, KTT_NULL, KTM_DIR_PERMS )
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DIR_TARGET("..", 0, KTT_NULL, KTM_DIR_PERMS )
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REG_TARGET("copyright", copyright, KTT_STRING, KTM_RO_PERMS )
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REG_TARGET("hostname", 0, KTT_HOSTNAME, KTM_RW_PERMS )
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REG_TARGET("hz", &hz, KTT_INT, KTM_RO_PERMS )
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REG_TARGET("loadavg", 0, KTT_AVENRUN, KTM_RO_PERMS )
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REG_TARGET("physmem", &physmem, KTT_INT, KTM_RO_PERMS )
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DIR_TARGET("root", 0, KTT_NULL, KTM_DIR_PERMS )
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BLK_TARGET("rootdev", 0, KTT_NULL, KTM_RO_PERMS )
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CHR_TARGET("rrootdev", 0, KTT_NULL, KTM_RO_PERMS )
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REG_TARGET("time", 0, KTT_TIME, KTM_RO_PERMS )
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REG_TARGET("version", version, KTT_STRING, KTM_RO_PERMS )
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};
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static int nkernfs_targets = sizeof(kernfs_targets) / sizeof(kernfs_targets[0]);
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static int
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kernfs_xread(kt, buf, len, lenp)
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struct kernfs_target *kt;
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char *buf;
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int len;
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int *lenp;
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{
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int xlen;
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switch (kt->kt_tag) {
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case KTT_TIME: {
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struct timeval tv;
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microtime(&tv);
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sprintf(buf, "%d %d\n", tv.tv_sec, tv.tv_usec);
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break;
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}
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case KTT_INT: {
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int *ip = kt->kt_data;
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sprintf(buf, "%d\n", *ip);
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break;
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}
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case KTT_STRING: {
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char *cp = kt->kt_data;
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int xlen = strlen(cp) + 1;
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if (xlen >= len)
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return (EINVAL);
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bcopy(cp, buf, xlen);
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break;
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}
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case KTT_HOSTNAME: {
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char *cp = hostname;
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int xlen = hostnamelen;
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if (xlen + 2 > len) /* extra space for null and newline */
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return (EINVAL);
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bcopy(cp, buf, xlen); /* safer than sprintf */
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buf[xlen] = '\n';
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buf[xlen+1] = '\0';
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break;
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}
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case KTT_AVENRUN:
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sprintf(buf, "%d %d %d %d\n",
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averunnable[0],
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averunnable[1],
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averunnable[2],
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FSCALE);
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break;
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default:
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return (EINVAL);
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}
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*lenp = strlen(buf);
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return (0);
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}
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static int
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kernfs_xwrite(kt, buf, len)
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struct kernfs_target *kt;
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char *buf;
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int len;
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{
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switch (kt->kt_tag) {
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case KTT_HOSTNAME: {
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if (buf[len-1] == '\n')
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--len;
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bcopy(buf, hostname, len);
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/* kernfs_write set buf[value_passed_as_len] = \0.
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* therefore, buf len (hostnamelen) = len.
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*/
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hostnamelen = len;
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hostname[hostnamelen] = '\0'; /* null end of string. */
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return (0);
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}
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default:
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return (EIO);
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}
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}
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/*
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* vp is the current namei directory
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* ndp is the name to locate in that directory...
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*/
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kernfs_lookup(dvp, ndp, p)
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struct vnode *dvp;
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struct nameidata *ndp;
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struct proc *p;
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{
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char *pname = ndp->ni_ptr;
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int error = ENOENT;
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int i;
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struct vnode *fvp;
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_lookup(%s)\n", pname);
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#endif
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if (ndp->ni_namelen == 1 && *pname == '.') {
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ndp->ni_dvp = dvp;
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ndp->ni_vp = dvp;
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VREF(dvp);
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/*VOP_LOCK(dvp);*/
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return (0);
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}
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if (ndp->ni_namelen == 4 && bcmp(pname, "root", 4) == 0) {
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ndp->ni_dvp = dvp;
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ndp->ni_vp = rootdir;
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VREF(rootdir);
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VOP_LOCK(rootdir);
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return (0);
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}
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/*
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* /kern/rootdev is the root device
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*/
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if (ndp->ni_namelen == 7 && bcmp(pname, "rootdev", 7) == 0) {
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if (vfinddev(rootdev, VBLK, &fvp))
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return (ENXIO);
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ndp->ni_dvp = dvp;
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ndp->ni_vp = fvp;
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VREF(fvp);
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VOP_LOCK(fvp);
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return (0);
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}
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/*
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* /kern/rrootdev is the root device
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*/
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if (ndp->ni_namelen == 8 && bcmp(pname, "rrootdev", 7) == 0) {
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ndp->ni_dvp = dvp;
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ndp->ni_vp = rrootdevvp;
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VREF(rrootdevvp);
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VOP_LOCK(rrootdevvp);
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return (0);
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}
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for (i = 0; i < nkernfs_targets; i++) {
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struct kernfs_target *kt = &kernfs_targets[i];
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if (ndp->ni_namelen == strlen(kt->kt_name) &&
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bcmp(kt->kt_name, pname, ndp->ni_namelen) == 0) {
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error = 0;
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break;
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}
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}
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_lookup: i = %d, error = %d\n", i, error);
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#endif
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if (error)
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goto bad;
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_lookup: allocate new vnode\n");
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#endif
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error = getnewvnode(VT_KERNFS, dvp->v_mount, &kernfs_vnodeops, &fvp);
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if (error)
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goto bad;
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VTOKERN(fvp)->kf_kt = &kernfs_targets[i];
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fvp->v_type = VTOKERN(fvp)->kf_kt->kt_vtype;
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ndp->ni_dvp = dvp;
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ndp->ni_vp = fvp;
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_lookup: newvp = %x\n", fvp);
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#endif
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return (0);
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bad:;
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ndp->ni_dvp = dvp;
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ndp->ni_vp = NULL;
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_lookup: error = %d\n", error);
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#endif
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return (error);
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}
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kernfs_open(vp, mode, cred, p)
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struct vnode *vp;
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int mode;
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struct ucred *cred;
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struct proc *p;
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{
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/* if access succeeded, this always does, too */
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return (0);
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}
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/*
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* Check mode permission on target pointer. Mode is READ, WRITE or EXEC.
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* The mode is shifted to select the owner/group/other fields. The
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* super user is granted all permissions.
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*/
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kernfs_access(vp, mode, cred, p)
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struct vnode *vp;
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register int mode;
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struct ucred *cred;
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struct proc *p;
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{
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struct kernfs_target *kt = VTOKERN(vp)->kf_kt;
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register gid_t *gp;
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int i, error;
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#ifdef KERN_DIAGNOSTIC
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if (!VOP_ISLOCKED(vp)) {
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vprint("kernfs_access: not locked", vp);
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panic("kernfs_access: not locked");
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}
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#endif
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/*
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* If you're the super-user, you always get access.
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*/
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if (cred->cr_uid == 0)
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return (0);
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/*
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* Access check is based on only one of owner, group, public.
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* If not owner, then check group. If not a member of the
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* group, then check public access.
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*/
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if (cred->cr_uid != /* kt->kt_uid XXX */ 0) {
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mode >>= 3;
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gp = cred->cr_groups;
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for (i = 0; i < cred->cr_ngroups; i++, gp++)
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if (/* kt->kt_gid XXX */ 0 == *gp)
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goto found;
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mode >>= 3;
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found:
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;
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}
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if ((kt->kt_perms & mode) == mode)
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return (0);
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return (EACCES);
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}
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kernfs_getattr(vp, vap, cred, p)
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struct vnode *vp;
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struct vattr *vap;
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struct ucred *cred;
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struct proc *p;
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{
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int error = 0;
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char strbuf[KSTRING];
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struct kernfs_target *kt = VTOKERN(vp)->kf_kt;
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bzero((caddr_t) vap, sizeof(*vap));
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vattr_null(vap);
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vap->va_uid = kt->kt_uid;
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vap->va_gid = kt->kt_gid;
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vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
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/* vap->va_qsize = 0; */
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vap->va_blocksize = DEV_BSIZE;
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microtime(&vap->va_atime);
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vap->va_mtime = vap->va_atime;
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vap->va_ctime = vap->va_ctime;
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vap->va_gen = 0;
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vap->va_flags = 0;
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vap->va_rdev = 0;
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/* vap->va_qbytes = 0; */
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vap->va_bytes = 0;
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vap->va_type = kt->kt_vtype;
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vap->va_mode = kt->kt_perms;
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if (vp->v_flag & VROOT) {
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_getattr: stat rootdir\n");
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#endif
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vap->va_nlink = 2;
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vap->va_fileid = 2;
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vap->va_size = DEV_BSIZE;
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} else {
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_getattr: stat target %s\n", kt->kt_name);
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#endif
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vap->va_nlink = 1;
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vap->va_fileid = 3 + (kt - kernfs_targets) / sizeof(*kt);
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error = kernfs_xread(kt, strbuf, sizeof(strbuf), &vap->va_size);
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}
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vp->v_type = vap->va_type;
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#ifdef KERNFS_DIAGNOSTIC
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printf("kernfs_getattr: return error %d\n", error);
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#endif
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return (error);
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}
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/*
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* Change the mode on a file.
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*/
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kernfs_chmod1(vp, mode, p)
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register struct vnode *vp;
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register int mode;
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struct proc *p;
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{
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register struct ucred *cred = p->p_ucred;
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register struct kernfs_target *kt = VTOKERN(vp)->kf_kt;
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int error;
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if ((mode & kt->kt_maxperms) != mode) /* can't set ro var to rw */
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return (EPERM);
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if (cred->cr_uid != kt->kt_uid &&
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(error = suser(cred, &p->p_acflag)))
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return (error);
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if (cred->cr_uid) {
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if (vp->v_type != VDIR && (mode & S_ISVTX))
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return (EFTYPE);
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if (!groupmember(kt->kt_gid, cred) && (mode & S_ISGID))
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return (EPERM);
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}
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kt->kt_perms &= ~07777;
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kt->kt_perms |= mode & 07777;
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/* ip->i_flag |= ICHG;*/
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return (0);
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}
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/*
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* Perform chown operation on kernfs_target kt
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*/
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kernfs_chown1(vp, uid, gid, p)
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register struct vnode *vp;
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uid_t uid;
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gid_t gid;
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struct proc *p;
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{
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register struct kernfs_target *kt = VTOKERN(vp)->kf_kt;
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register struct ucred *cred = p->p_ucred;
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uid_t ouid;
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gid_t ogid;
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int error = 0;
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if (uid == (u_short)VNOVAL)
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uid = kt->kt_uid;
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if (gid == (u_short)VNOVAL)
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gid = kt->kt_gid;
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/*
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* If we don't own the file, are trying to change the owner
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* of the file, or are not a member of the target group,
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* the caller must be superuser or the call fails.
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*/
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if ((cred->cr_uid != kt->kt_uid || uid != kt->kt_uid ||
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!groupmember((gid_t)gid, cred)) &&
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(error = suser(cred, &p->p_acflag)))
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return (error);
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ouid = kt->kt_uid;
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ogid = kt->kt_gid;
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kt->kt_uid = uid;
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kt->kt_gid = gid;
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/* if (ouid != uid || ogid != gid)
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ip->i_flag |= ICHG;*/
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if (ouid != uid && cred->cr_uid != 0)
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kt->kt_perms &= ~S_ISUID;
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if (ogid != gid && cred->cr_uid != 0)
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kt->kt_perms &= ~S_ISGID;
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return (0);
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}
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/*
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* Set attribute vnode op. called from several syscalls
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*/
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kernfs_setattr(vp, vap, cred, p)
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struct vnode *vp;
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struct vattr *vap;
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struct ucred *cred;
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struct proc *p;
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{
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int error = 0;
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/*
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* Check for unsetable attributes.
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*/
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if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
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(vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
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(vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
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((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
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return (EINVAL);
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}
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/*
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* Go through the fields and update iff not VNOVAL.
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*/
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if (vap->va_uid != (u_short)VNOVAL || vap->va_gid != (u_short)VNOVAL)
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if (error = kernfs_chown1(vp, vap->va_uid, vap->va_gid, p))
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return (error);
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if (vap->va_size != VNOVAL) {
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if (vp->v_type == VDIR)
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return (EISDIR);
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/* else just nod and smile... */
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}
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if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
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/* if (cred->cr_uid != ip->i_uid &&
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(error = suser(cred, &p->p_acflag)))
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return (error);
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if (vap->va_atime.tv_sec != VNOVAL)
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ip->i_flag |= IACC;
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if (vap->va_mtime.tv_sec != VNOVAL)
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ip->i_flag |= IUPD;
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ip->i_flag |= ICHG;
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if (error = iupdat(ip, &vap->va_atime, &vap->va_mtime, 1))
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return (error);
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*/
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}
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if (vap->va_mode != (u_short)VNOVAL)
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error = kernfs_chmod1(vp, (int)vap->va_mode, p);
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if (vap->va_flags != VNOVAL) {
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/* if (cred->cr_uid != ip->i_uid &&
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(error = suser(cred, &p->p_acflag)))
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return (error);
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if (cred->cr_uid == 0) {
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ip->i_flags = vap->va_flags;
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} else {
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ip->i_flags &= 0xffff0000;
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ip->i_flags |= (vap->va_flags & 0xffff);
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}
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ip->i_flag |= ICHG;
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*/
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}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
kernfs_read(vp, uio, ioflag, cred)
|
|
struct vnode *vp;
|
|
struct uio *uio;
|
|
int ioflag;
|
|
struct ucred *cred;
|
|
{
|
|
struct kernfs_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
|
|
|
|
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 kernfs_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';
|
|
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 >= nkernfs_targets) {
|
|
*eofflagp = 1;
|
|
break;
|
|
}
|
|
{
|
|
struct direct d;
|
|
struct direct *dp = &d;
|
|
struct kernfs_target *kt = &kernfs_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_KERNFS, 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 */
|
|
};
|