BSD 4_3_Net_2 release

[unix-history] / usr / src / sys / kern / dead_vnops.c

diff --git a/usr/src/sys/kern/dead_vnops.c b/usr/src/sys/kern/dead_vnops.c
index 0002f43..e1430bc 100644 (file)
--- a/usr/src/sys/kern/dead_vnops.c
+++ b/usr/src/sys/kern/dead_vnops.c
@@ -2,86 +2,232 @@
  * Copyright (c) 1989 The Regents of the University of California.
  * All rights reserved.
  *
  * Copyright (c) 1989 The Regents of the University of California.
  * All rights reserved.
  *

- * Redistribution is only permitted until one year after the first shipment
- * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
- * binary forms are permitted provided that: (1) source distributions retain
- * this entire copyright notice and comment, and (2) distributions including
- * binaries display the following acknowledgement:  This product includes
- * software developed by the University of California, Berkeley and its
- * contributors'' in the documentation or other materials provided with the
- * distribution and in all advertising materials mentioning features or use
- * of this software.  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 AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * 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.

  *
  *

- *     @(#)dead_vnops.c        7.10 (Berkeley) 6/28/90
+ * 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.
+ *
+ *     @(#)dead_vnops.c        7.13 (Berkeley) 4/15/91

  */
 
 #include "param.h"
  */
 
 #include "param.h"

+#include "systm.h"

 #include "time.h"
 #include "vnode.h"
 #include "errno.h"
 #include "namei.h"
 #include "buf.h"
 
 #include "time.h"
 #include "vnode.h"
 #include "errno.h"
 #include "namei.h"
 #include "buf.h"
 

-int    dead_lookup(),
-       dead_open(),
-       dead_read(),
-       dead_write(),
-       dead_strategy(),
-       dead_ioctl(),
-       dead_select(),
-       dead_lock(),
-       dead_bmap(),
-       dead_print(),
-       dead_ebadf(),
-       dead_badop(),
-       dead_nullop();
+/*
+ * Prototypes for dead operations on vnodes.
+ */
+int    dead_badop(),
+       dead_ebadf();
+int    dead_lookup __P((
+               struct vnode *vp,
+               struct nameidata *ndp,
+               struct proc *p));
+#define dead_create ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct vattr *vap, \
+               struct proc *p))) dead_badop)
+#define dead_mknod ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct vattr *vap, \
+               struct ucred *cred, \
+               struct proc *p))) dead_badop)
+int    dead_open __P((
+               struct vnode *vp,
+               int mode,
+               struct ucred *cred,
+               struct proc *p));
+#define dead_close ((int (*) __P(( \
+               struct vnode *vp, \
+               int fflag, \
+               struct ucred *cred, \
+               struct proc *p))) nullop)
+#define dead_access ((int (*) __P(( \
+               struct vnode *vp, \
+               int mode, \
+               struct ucred *cred, \
+               struct proc *p))) dead_ebadf)
+#define dead_getattr ((int (*) __P(( \
+               struct vnode *vp, \
+               struct vattr *vap, \
+               struct ucred *cred, \
+               struct proc *p))) dead_ebadf)
+#define dead_setattr ((int (*) __P(( \
+               struct vnode *vp, \
+               struct vattr *vap, \
+               struct ucred *cred, \
+               struct proc *p))) dead_ebadf)
+int    dead_read __P((
+               struct vnode *vp,
+               struct uio *uio,
+               int ioflag,
+               struct ucred *cred));
+int    dead_write __P((
+               struct vnode *vp,
+               struct uio *uio,
+               int ioflag,
+               struct ucred *cred));
+int    dead_ioctl __P((
+               struct vnode *vp,
+               int command,
+               caddr_t data,
+               int fflag,
+               struct ucred *cred,
+               struct proc *p));
+int    dead_select __P((
+               struct vnode *vp,
+               int which,
+               int fflags,
+               struct ucred *cred,
+               struct proc *p));
+#define dead_mmap ((int (*) __P(( \
+               struct vnode *vp, \
+               int fflags, \
+               struct ucred *cred, \
+               struct proc *p))) dead_badop)
+#define dead_fsync ((int (*) __P(( \
+               struct vnode *vp, \
+               int fflags, \
+               struct ucred *cred, \
+               int waitfor, \
+               struct proc *p))) nullop)
+#define dead_seek ((int (*) __P(( \
+               struct vnode *vp, \
+               off_t oldoff, \
+               off_t newoff, \
+               struct ucred *cred))) nullop)
+#define dead_remove ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct proc *p))) dead_badop)
+#define dead_link ((int (*) __P(( \
+               struct vnode *vp, \
+               struct nameidata *ndp, \
+               struct proc *p))) dead_badop)
+#define dead_rename ((int (*) __P(( \
+               struct nameidata *fndp, \
+               struct nameidata *tdnp, \
+               struct proc *p))) dead_badop)
+#define dead_mkdir ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct vattr *vap, \
+               struct proc *p))) dead_badop)
+#define dead_rmdir ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct proc *p))) dead_badop)
+#define dead_symlink ((int (*) __P(( \
+               struct nameidata *ndp, \
+               struct vattr *vap, \
+               char *target, \
+               struct proc *p))) dead_badop)
+#define dead_readdir ((int (*) __P(( \
+               struct vnode *vp, \
+               struct uio *uio, \
+               struct ucred *cred, \
+               int *eofflagp))) dead_ebadf)
+#define dead_readlink ((int (*) __P(( \
+               struct vnode *vp, \
+               struct uio *uio, \
+               struct ucred *cred))) dead_ebadf)
+#define dead_abortop ((int (*) __P(( \
+               struct nameidata *ndp))) dead_badop)
+#define dead_inactive ((int (*) __P(( \
+               struct vnode *vp, \
+               struct proc *p))) nullop)
+#define dead_reclaim ((int (*) __P(( \
+               struct vnode *vp))) nullop)
+int    dead_lock __P((
+               struct vnode *vp));
+#define dead_unlock ((int (*) __P(( \
+               struct vnode *vp))) nullop)
+int    dead_bmap __P((
+               struct vnode *vp,
+               daddr_t bn,
+               struct vnode **vpp,
+               daddr_t *bnp));
+int    dead_strategy __P((
+               struct buf *bp));
+int    dead_print __P((
+               struct vnode *vp));
+#define dead_islocked ((int (*) __P(( \
+               struct vnode *vp))) nullop)
+#define dead_advlock ((int (*) __P(( \
+               struct vnode *vp, \
+               caddr_t id, \
+               int op, \
+               struct flock *fl, \
+               int flags))) dead_ebadf)

 
 struct vnodeops dead_vnodeops = {
        dead_lookup,    /* lookup */
 
 struct vnodeops dead_vnodeops = {
        dead_lookup,    /* lookup */

-       dead_badop,     /* create */
-       dead_badop,     /* mknod */
+       dead_create,    /* create */
+       dead_mknod,     /* mknod */

        dead_open,      /* open */
        dead_open,      /* open */

-       dead_nullop,    /* close */
-       dead_ebadf,     /* access */
-       dead_ebadf,     /* getattr */
-       dead_ebadf,     /* setattr */
+       dead_close,     /* close */
+       dead_access,    /* access */
+       dead_getattr,   /* getattr */
+       dead_setattr,   /* setattr */

        dead_read,      /* read */
        dead_write,     /* write */
        dead_ioctl,     /* ioctl */
        dead_select,    /* select */
        dead_read,      /* read */
        dead_write,     /* write */
        dead_ioctl,     /* ioctl */
        dead_select,    /* select */

-       dead_badop,     /* mmap */
-       dead_nullop,    /* fsync */
-       dead_nullop,    /* seek */
-       dead_badop,     /* remove */
-       dead_badop,     /* link */
-       dead_badop,     /* rename */
-       dead_badop,     /* mkdir */
-       dead_badop,     /* rmdir */
-       dead_badop,     /* symlink */
-       dead_ebadf,     /* readdir */
-       dead_ebadf,     /* readlink */
-       dead_badop,     /* abortop */
-       dead_nullop,    /* inactive */
-       dead_nullop,    /* reclaim */
+       dead_mmap,      /* mmap */
+       dead_fsync,     /* fsync */
+       dead_seek,      /* seek */
+       dead_remove,    /* remove */
+       dead_link,      /* link */
+       dead_rename,    /* rename */
+       dead_mkdir,     /* mkdir */
+       dead_rmdir,     /* rmdir */
+       dead_symlink,   /* symlink */
+       dead_readdir,   /* readdir */
+       dead_readlink,  /* readlink */
+       dead_abortop,   /* abortop */
+       dead_inactive,  /* inactive */
+       dead_reclaim,   /* reclaim */

        dead_lock,      /* lock */
        dead_lock,      /* lock */

-       dead_nullop,    /* unlock */
+       dead_unlock,    /* unlock */

        dead_bmap,      /* bmap */
        dead_strategy,  /* strategy */
        dead_print,     /* print */
        dead_bmap,      /* bmap */
        dead_strategy,  /* strategy */
        dead_print,     /* print */

-       dead_nullop,    /* islocked */
+       dead_islocked,  /* islocked */
+       dead_advlock,   /* advlock */

 };
 
 /*
  * Trivial lookup routine that always fails.
  */
 };
 
 /*
  * Trivial lookup routine that always fails.
  */

-dead_lookup(vp, ndp)
+/* ARGSUSED */
+dead_lookup(vp, ndp, p)

        struct vnode *vp;
        struct nameidata *ndp;
        struct vnode *vp;
        struct nameidata *ndp;

+       struct proc *p;

 {
 
        ndp->ni_dvp = vp;
 {
 
        ndp->ni_dvp = vp;


@@ -93,10 +239,11 @@ dead_lookup(vp, ndp)
  * Open always fails as if device did not exist.
  */
 /* ARGSUSED */
  * Open always fails as if device did not exist.
  */
 /* ARGSUSED */

-dead_open(vp, mode, cred)
+dead_open(vp, mode, cred, p)

        struct vnode *vp;
        int mode;
        struct ucred *cred;
        struct vnode *vp;
        int mode;
        struct ucred *cred;

+       struct proc *p;

 {
 
        return (ENXIO);
 {
 
        return (ENXIO);


@@ -143,24 +290,26 @@ dead_write(vp, uio, ioflag, cred)
  * Device ioctl operation.
  */
 /* ARGSUSED */
  * Device ioctl operation.
  */
 /* ARGSUSED */

-dead_ioctl(vp, com, data, fflag, cred)
+dead_ioctl(vp, com, data, fflag, cred, p)

        struct vnode *vp;
        register int com;
        caddr_t data;
        int fflag;
        struct ucred *cred;
        struct vnode *vp;
        register int com;
        caddr_t data;
        int fflag;
        struct ucred *cred;

+       struct proc *p;

 {
 
        if (!chkvnlock(vp))
                return (EBADF);
 {
 
        if (!chkvnlock(vp))
                return (EBADF);

-       return (VOP_IOCTL(vp, com, data, fflag, cred));
+       return (VOP_IOCTL(vp, com, data, fflag, cred, p));

 }
 
 /* ARGSUSED */
 }
 
 /* ARGSUSED */

-dead_select(vp, which, fflags, cred)
+dead_select(vp, which, fflags, cred, p)

        struct vnode *vp;
        int which, fflags;
        struct ucred *cred;
        struct vnode *vp;
        int which, fflags;
        struct ucred *cred;

+       struct proc *p;

 {
 
        /*
 {
 
        /*


@@ -214,6 +363,7 @@ dead_bmap(vp, bn, vpp, bnp)
 /*
  * Print out the contents of a dead vnode.
  */
 /*
  * Print out the contents of a dead vnode.
  */

+/* ARGSUSED */

 dead_print(vp)
        struct vnode *vp;
 {
 dead_print(vp)
        struct vnode *vp;
 {