BSD 4_4 release

[unix-history] / usr / src / sys / ufs / ufs / ufs_vnops.c

diff --git a/usr/src/sys/ufs/ufs/ufs_vnops.c b/usr/src/sys/ufs/ufs/ufs_vnops.c
index 7d94911..71a395e 100644 (file)
--- a/usr/src/sys/ufs/ufs/ufs_vnops.c
+++ b/usr/src/sys/ufs/ufs/ufs_vnops.c
@@ -1,229 +1,103 @@
 /*
 /*

- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1982, 1986, 1989, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not 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.

  *
  *

- *     @(#)ufs_vnops.c 7.38 (Berkeley) %G%
- */
-
-#include "param.h"
-#include "systm.h"
-#include "user.h"
-#include "kernel.h"
-#include "file.h"
-#include "stat.h"
-#include "buf.h"
-#include "proc.h"
-#include "socket.h"
-#include "socketvar.h"
-#include "conf.h"
-#include "mount.h"
-#include "vnode.h"
-#include "specdev.h"
-#include "../ufs/quota.h"
-#include "../ufs/inode.h"
-#include "../ufs/fs.h"
-
-/*
- * Global vfs data structures for ufs
+ * 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.
+ *
+ *     @(#)ufs_vnops.c 8.1 (Berkeley) 6/11/93

  */
 
  */
 

-int    ufs_lookup(),
-       ufs_create(),
-       ufs_mknod(),
-       ufs_open(),
-       ufs_close(),
-       ufs_access(),
-       ufs_getattr(),
-       ufs_setattr(),
-       ufs_read(),
-       ufs_write(),
-       ufs_ioctl(),
-       ufs_select(),
-       ufs_mmap(),
-       ufs_fsync(),
-       ufs_seek(),
-       ufs_remove(),
-       ufs_link(),
-       ufs_rename(),
-       ufs_mkdir(),
-       ufs_rmdir(),
-       ufs_symlink(),
-       ufs_readdir(),
-       ufs_readlink(),
-       ufs_abortop(),
-       ufs_inactive(),
-       ufs_reclaim(),
-       ufs_lock(),
-       ufs_unlock(),
-       ufs_bmap(),
-       ufs_strategy(),
-       ufs_print(),
-       ufs_islocked();
-
-struct vnodeops ufs_vnodeops = {
-       ufs_lookup,             /* lookup */
-       ufs_create,             /* create */
-       ufs_mknod,              /* mknod */
-       ufs_open,               /* open */
-       ufs_close,              /* close */
-       ufs_access,             /* access */
-       ufs_getattr,            /* getattr */
-       ufs_setattr,            /* setattr */
-       ufs_read,               /* read */
-       ufs_write,              /* write */
-       ufs_ioctl,              /* ioctl */
-       ufs_select,             /* select */
-       ufs_mmap,               /* mmap */
-       ufs_fsync,              /* fsync */
-       ufs_seek,               /* seek */
-       ufs_remove,             /* remove */
-       ufs_link,               /* link */
-       ufs_rename,             /* rename */
-       ufs_mkdir,              /* mkdir */
-       ufs_rmdir,              /* rmdir */
-       ufs_symlink,            /* symlink */
-       ufs_readdir,            /* readdir */
-       ufs_readlink,           /* readlink */
-       ufs_abortop,            /* abortop */
-       ufs_inactive,           /* inactive */
-       ufs_reclaim,            /* reclaim */
-       ufs_lock,               /* lock */
-       ufs_unlock,             /* unlock */
-       ufs_bmap,               /* bmap */
-       ufs_strategy,           /* strategy */
-       ufs_print,              /* print */
-       ufs_islocked,           /* islocked */
-};
-
-int    spec_lookup(),
-       spec_open(),
-       ufsspec_read(),
-       ufsspec_write(),
-       spec_strategy(),
-       spec_bmap(),
-       spec_ioctl(),
-       spec_select(),
-       ufsspec_close(),
-       spec_badop(),
-       spec_nullop();
-
-struct vnodeops spec_inodeops = {
-       spec_lookup,            /* lookup */
-       spec_badop,             /* create */
-       spec_badop,             /* mknod */
-       spec_open,              /* open */
-       ufsspec_close,          /* close */
-       ufs_access,             /* access */
-       ufs_getattr,            /* getattr */
-       ufs_setattr,            /* setattr */
-       ufsspec_read,           /* read */
-       ufsspec_write,          /* write */
-       spec_ioctl,             /* ioctl */
-       spec_select,            /* select */
-       spec_badop,             /* mmap */
-       spec_nullop,            /* fsync */
-       spec_badop,             /* seek */
-       spec_badop,             /* remove */
-       spec_badop,             /* link */
-       spec_badop,             /* rename */
-       spec_badop,             /* mkdir */
-       spec_badop,             /* rmdir */
-       spec_badop,             /* symlink */
-       spec_badop,             /* readdir */
-       spec_badop,             /* readlink */
-       spec_badop,             /* abortop */
-       ufs_inactive,           /* inactive */
-       ufs_reclaim,            /* reclaim */
-       ufs_lock,               /* lock */
-       ufs_unlock,             /* unlock */
-       spec_bmap,              /* bmap */
-       spec_strategy,          /* strategy */
-       ufs_print,              /* print */
-       ufs_islocked,           /* islocked */
-};
-
-#ifdef FIFO
-int    fifo_lookup(),
-       fifo_open(),
-       ufsfifo_read(),
-       ufsfifo_write(),
-       fifo_bmap(),
-       fifo_ioctl(),
-       fifo_select(),
-       ufsfifo_close(),
-       fifo_print(),
-       fifo_badop(),
-       fifo_nullop();
-
-struct vnodeops fifo_inodeops = {
-       fifo_lookup,            /* lookup */
-       fifo_badop,             /* create */
-       fifo_badop,             /* mknod */
-       fifo_open,              /* open */
-       ufsfifo_close,          /* close */
-       ufs_access,             /* access */
-       ufs_getattr,            /* getattr */
-       ufs_setattr,            /* setattr */
-       ufsfifo_read,           /* read */
-       ufsfifo_write,          /* write */
-       fifo_ioctl,             /* ioctl */
-       fifo_select,            /* select */
-       fifo_badop,             /* mmap */
-       fifo_nullop,            /* fsync */
-       fifo_badop,             /* seek */
-       fifo_badop,             /* remove */
-       fifo_badop,             /* link */
-       fifo_badop,             /* rename */
-       fifo_badop,             /* mkdir */
-       fifo_badop,             /* rmdir */
-       fifo_badop,             /* symlink */
-       fifo_badop,             /* readdir */
-       fifo_badop,             /* readlink */
-       fifo_badop,             /* abortop */
-       ufs_inactive,           /* inactive */
-       ufs_reclaim,            /* reclaim */
-       ufs_lock,               /* lock */
-       ufs_unlock,             /* unlock */
-       fifo_bmap,              /* bmap */
-       fifo_badop,             /* strategy */
-       ufs_print,              /* print */
-       ufs_islocked,           /* islocked */
-};
-#endif /* FIFO */
-
-enum vtype iftovt_tab[16] = {
-       VNON, VFIFO, VCHR, VNON, VDIR, VNON, VBLK, VNON,
-       VREG, VNON, VLNK, VNON, VSOCK, VNON, VNON, VBAD,
-};
-int    vttoif_tab[9] = {
-       0, IFREG, IFDIR, IFBLK, IFCHR, IFLNK, IFSOCK, IFIFO, IFMT,
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/namei.h>
+#include <sys/resourcevar.h>
+#include <sys/kernel.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/buf.h>
+#include <sys/proc.h>
+#include <sys/conf.h>
+#include <sys/mount.h>
+#include <sys/vnode.h>
+#include <sys/malloc.h>
+#include <sys/dirent.h>
+
+#include <vm/vm.h>
+
+#include <miscfs/specfs/specdev.h>
+
+#include <ufs/ufs/lockf.h>
+#include <ufs/ufs/quota.h>
+#include <ufs/ufs/inode.h>
+#include <ufs/ufs/dir.h>
+#include <ufs/ufs/ufsmount.h>
+#include <ufs/ufs/ufs_extern.h>
+
+static int ufs_chmod __P((struct vnode *, int, struct ucred *, struct proc *));
+static int ufs_chown
+       __P((struct vnode *, uid_t, gid_t, struct ucred *, struct proc *));
+
+union _qcvt {
+       quad_t qcvt;
+       long val[2];

 };
 };

+#define SETHIGH(q, h) { \
+       union _qcvt tmp; \
+       tmp.qcvt = (q); \
+       tmp.val[_QUAD_HIGHWORD] = (h); \
+       (q) = tmp.qcvt; \
+}
+#define SETLOW(q, l) { \
+       union _qcvt tmp; \
+       tmp.qcvt = (q); \
+       tmp.val[_QUAD_LOWWORD] = (l); \
+       (q) = tmp.qcvt; \
+}

 
 /*
  * Create a regular file
  */
 
 /*
  * Create a regular file
  */

-ufs_create(ndp, vap)
-       struct nameidata *ndp;
-       struct vattr *vap;
+int
+ufs_create(ap)
+       struct vop_create_args /* {
+               struct vnode *a_dvp;
+               struct vnode **a_vpp;
+               struct componentname *a_cnp;
+               struct vattr *a_vap;
+       } */ *ap;

 {
 {

-       struct inode *ip;

        int error;
 
        int error;
 

-       if (error = maknode(MAKEIMODE(vap->va_type, vap->va_mode), ndp, &ip))
+       if (error =
+           ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
+           ap->a_dvp, ap->a_vpp, ap->a_cnp))

                return (error);
                return (error);

-       ndp->ni_vp = ITOV(ip);

        return (0);
 }
 
        return (0);
 }
 


@@ -231,17 +105,25 @@ ufs_create(ndp, vap)
  * Mknod vnode call
  */
 /* ARGSUSED */
  * Mknod vnode call
  */
 /* ARGSUSED */

-ufs_mknod(ndp, vap, cred)
-       struct nameidata *ndp;
-       struct ucred *cred;
-       struct vattr *vap;
+int
+ufs_mknod(ap)
+       struct vop_mknod_args /* {
+               struct vnode *a_dvp;
+               struct vnode **a_vpp;
+               struct componentname *a_cnp;
+               struct vattr *a_vap;
+       } */ *ap;

 {
 {

-       register struct vnode *vp;
-       struct inode *ip;
+       register struct vattr *vap = ap->a_vap;
+       register struct vnode **vpp = ap->a_vpp;
+       register struct inode *ip;

        int error;
 
        int error;
 

-       if (error = maknode(MAKEIMODE(vap->va_type, vap->va_mode), ndp, &ip))
+       if (error =
+           ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
+           ap->a_dvp, vpp, ap->a_cnp))

                return (error);
                return (error);

+       ip = VTOI(*vpp);

        ip->i_flag |= IACC|IUPD|ICHG;
        if (vap->va_rdev != VNOVAL) {
                /*
        ip->i_flag |= IACC|IUPD|ICHG;
        if (vap->va_rdev != VNOVAL) {
                /*


@@ -255,10 +137,10 @@ ufs_mknod(ndp, vap, cred)
         * checked to see if it is an alias of an existing entry
         * in the inode cache.
         */
         * checked to see if it is an alias of an existing entry
         * in the inode cache.
         */

-       vp = ITOV(ip);
-       vput(vp);
-       vp->v_type = VNON;
-       vgone(vp);
+       vput(*vpp);
+       (*vpp)->v_type = VNON;
+       vgone(*vpp);
+       *vpp = 0;

        return (0);
 }
 
        return (0);
 }
 


@@ -268,12 +150,22 @@ ufs_mknod(ndp, vap, cred)
  * Nothing to do.
  */
 /* ARGSUSED */
  * Nothing to do.
  */
 /* ARGSUSED */

-ufs_open(vp, mode, cred)
-       struct vnode *vp;
-       int mode;
-       struct ucred *cred;
+int
+ufs_open(ap)
+       struct vop_open_args /* {
+               struct vnode *a_vp;
+               int  a_mode;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 
 {
 

+       /*
+        * Files marked append-only must be opened for appending.
+        */
+       if ((VTOI(ap->a_vp)->i_flags & APPEND) &&
+           (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
+               return (EPERM);

        return (0);
 }
 
        return (0);
 }
 


@@ -283,11 +175,16 @@ ufs_open(vp, mode, cred)
  * Update the times on the inode.
  */
 /* ARGSUSED */
  * Update the times on the inode.
  */
 /* ARGSUSED */

-ufs_close(vp, fflag, cred)
-       struct vnode *vp;
-       int fflag;
-       struct ucred *cred;
+int
+ufs_close(ap)
+       struct vop_close_args /* {
+               struct vnode *a_vp;
+               int  a_fflag;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;

        register struct inode *ip = VTOI(vp);
 
        if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
        register struct inode *ip = VTOI(vp);
 
        if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))


@@ -300,12 +197,19 @@ ufs_close(vp, fflag, cred)
  * The mode is shifted to select the owner/group/other fields. The
  * super user is granted all permissions.
  */
  * The mode is shifted to select the owner/group/other fields. The
  * super user is granted all permissions.
  */

-ufs_access(vp, mode, cred)
-       struct vnode *vp;
-       register int mode;
-       struct ucred *cred;
+int
+ufs_access(ap)
+       struct vop_access_args /* {
+               struct vnode *a_vp;
+               int  a_mode;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;

        register struct inode *ip = VTOI(vp);
        register struct inode *ip = VTOI(vp);

+       register struct ucred *cred = ap->a_cred;
+       mode_t mode = ap->a_mode;

        register gid_t *gp;
        int i, error;
 
        register gid_t *gp;
        int i, error;
 


@@ -324,6 +228,8 @@ ufs_access(vp, mode, cred)
                }
        }
 #endif /* QUOTA */
                }
        }
 #endif /* QUOTA */

+       if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
+               return (EPERM);

        /*
         * If you're the super-user, you always get access.
         */
        /*
         * If you're the super-user, you always get access.
         */


@@ -344,18 +250,22 @@ ufs_access(vp, mode, cred)
 found:
                ;
        }
 found:
                ;
        }

-       if ((ip->i_mode & mode) != 0)
-               return (0);
-       return (EACCES);
+       return ((ip->i_mode & mode) == mode ? 0 : EACCES);

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

-ufs_getattr(vp, vap, cred)
-       struct vnode *vp;
-       register struct vattr *vap;
-       struct ucred *cred;
+int
+ufs_getattr(ap)
+       struct vop_getattr_args /* {
+               struct vnode *a_vp;
+               struct vattr *a_vap;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;

        register struct inode *ip = VTOI(vp);
        register struct inode *ip = VTOI(vp);

+       register struct vattr *vap = ap->a_vap;

 
        ITIMES(ip, &time, &time);
        /*
 
        ITIMES(ip, &time, &time);
        /*


@@ -368,18 +278,10 @@ ufs_getattr(vp, vap, cred)
        vap->va_uid = ip->i_uid;
        vap->va_gid = ip->i_gid;
        vap->va_rdev = (dev_t)ip->i_rdev;
        vap->va_uid = ip->i_uid;
        vap->va_gid = ip->i_gid;
        vap->va_rdev = (dev_t)ip->i_rdev;

-#ifdef tahoe
-       vap->va_size = ip->i_size;
-       vap->va_size_rsv = 0;
-#else
-       vap->va_qsize = ip->i_din.di_qsize;
-#endif
-       vap->va_atime.tv_sec = ip->i_atime;
-       vap->va_atime.tv_usec = 0;
-       vap->va_mtime.tv_sec = ip->i_mtime;
-       vap->va_mtime.tv_usec = 0;
-       vap->va_ctime.tv_sec = ip->i_ctime;
-       vap->va_ctime.tv_usec = 0;
+       vap->va_size = ip->i_din.di_size;
+       vap->va_atime = ip->i_atime;
+       vap->va_mtime = ip->i_mtime;
+       vap->va_ctime = ip->i_ctime;

        vap->va_flags = ip->i_flags;
        vap->va_gen = ip->i_gen;
        /* this doesn't belong here */
        vap->va_flags = ip->i_flags;
        vap->va_gen = ip->i_gen;
        /* this doesn't belong here */


@@ -388,26 +290,35 @@ ufs_getattr(vp, vap, cred)
        else if (vp->v_type == VCHR)
                vap->va_blocksize = MAXBSIZE;
        else
        else if (vp->v_type == VCHR)
                vap->va_blocksize = MAXBSIZE;
        else

-               vap->va_blocksize = ip->i_fs->fs_bsize;
+               vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;

        vap->va_bytes = dbtob(ip->i_blocks);
        vap->va_bytes = dbtob(ip->i_blocks);

-       vap->va_bytes_rsv = 0;

        vap->va_type = vp->v_type;
        vap->va_type = vp->v_type;

+       vap->va_filerev = ip->i_modrev;

        return (0);
 }
 
 /*
  * Set attribute vnode op. called from several syscalls
  */
        return (0);
 }
 
 /*
  * Set attribute vnode op. called from several syscalls
  */

-ufs_setattr(vp, vap, cred)
-       register struct vnode *vp;
-       register struct vattr *vap;
-       register struct ucred *cred;
+int
+ufs_setattr(ap)
+       struct vop_setattr_args /* {
+               struct vnode *a_vp;
+               struct vattr *a_vap;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

+       register struct vattr *vap = ap->a_vap;
+       register struct vnode *vp = ap->a_vp;

        register struct inode *ip = VTOI(vp);
        register struct inode *ip = VTOI(vp);

-       int error = 0;
+       register struct ucred *cred = ap->a_cred;
+       register struct proc *p = ap->a_p;
+       struct timeval atimeval, mtimeval;
+       int error;

 
        /*
 
        /*

-        * Check for unsetable attributes.
+        * Check for unsettable attributes.

         */
        if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
            (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
         */
        if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
            (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||


@@ -415,44 +326,60 @@ ufs_setattr(vp, vap, cred)
            ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
                return (EINVAL);
        }
            ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
                return (EINVAL);
        }

+       if (vap->va_flags != VNOVAL) {
+               if (cred->cr_uid != ip->i_uid &&
+                   (error = suser(cred, &p->p_acflag)))
+                       return (error);
+               if (cred->cr_uid == 0) {
+                       if ((ip->i_flags & (SF_IMMUTABLE | SF_APPEND)) &&
+                           securelevel > 0)
+                               return (EPERM);
+                       ip->i_flags = vap->va_flags;
+               } else {
+                       if (ip->i_flags & (SF_IMMUTABLE | SF_APPEND))
+                               return (EPERM);
+                       ip->i_flags &= SF_SETTABLE;
+                       ip->i_flags |= (vap->va_flags & UF_SETTABLE);
+               }
+               ip->i_flag |= ICHG;
+               if (vap->va_flags & (IMMUTABLE | APPEND))
+                       return (0);
+       }
+       if (ip->i_flags & (IMMUTABLE | APPEND))
+               return (EPERM);

        /*
         * Go through the fields and update iff not VNOVAL.
         */
        /*
         * Go through the fields and update iff not VNOVAL.
         */

-       if (vap->va_uid != (u_short)VNOVAL || vap->va_gid != (u_short)VNOVAL)
-               if (error = chown1(vp, vap->va_uid, vap->va_gid, cred))
+       if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL)
+               if (error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred, p))

                        return (error);
        if (vap->va_size != VNOVAL) {
                if (vp->v_type == VDIR)
                        return (EISDIR);
                        return (error);
        if (vap->va_size != VNOVAL) {
                if (vp->v_type == VDIR)
                        return (EISDIR);

-               if (error = itrunc(ip, vap->va_size, 0)) /* XXX IO_SYNC? */
+               if (error = VOP_TRUNCATE(vp, vap->va_size, 0, cred, p))

                        return (error);
        }
                        return (error);
        }

-       if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
+       ip = VTOI(vp);
+       if (vap->va_atime.ts_sec != VNOVAL || vap->va_mtime.ts_sec != VNOVAL) {

                if (cred->cr_uid != ip->i_uid &&
                if (cred->cr_uid != ip->i_uid &&

-                   (error = suser(cred, &u.u_acflag)))
+                   (error = suser(cred, &p->p_acflag)) &&
+                   ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || 
+                   (error = VOP_ACCESS(vp, VWRITE, cred, p))))

                        return (error);
                        return (error);

-               if (vap->va_atime.tv_sec != VNOVAL)
+               if (vap->va_atime.ts_sec != VNOVAL)

                        ip->i_flag |= IACC;
                        ip->i_flag |= IACC;

-               if (vap->va_mtime.tv_sec != VNOVAL)
-                       ip->i_flag |= IUPD;
-               ip->i_flag |= ICHG;
-               if (error = iupdat(ip, &vap->va_atime, &vap->va_mtime, 1))
+               if (vap->va_mtime.ts_sec != VNOVAL)
+                       ip->i_flag |= IUPD | ICHG;
+               atimeval.tv_sec = vap->va_atime.ts_sec;
+               atimeval.tv_usec = vap->va_atime.ts_nsec / 1000;
+               mtimeval.tv_sec = vap->va_mtime.ts_sec;
+               mtimeval.tv_usec = vap->va_mtime.ts_nsec / 1000;
+               if (error = VOP_UPDATE(vp, &atimeval, &mtimeval, 1))

                        return (error);
        }
                        return (error);
        }

-       if (vap->va_mode != (u_short)VNOVAL)
-               error = chmod1(vp, (int)vap->va_mode, cred);
-       if (vap->va_flags != VNOVAL) {
-               if (cred->cr_uid != ip->i_uid &&
-                   (error = suser(cred, &u.u_acflag)))
-                       return (error);
-               if (cred->cr_uid == 0) {
-                       ip->i_flags = vap->va_flags;
-               } else {
-                       ip->i_flags &= 0xffff0000;
-                       ip->i_flags |= (vap->va_flags & 0xffff);
-               }
-               ip->i_flag |= ICHG;
-       }
+       error = 0;
+       if (vap->va_mode != (mode_t)VNOVAL)
+               error = ufs_chmod(vp, (int)vap->va_mode, cred, p);

        return (error);
 }
 
        return (error);
 }
 


@@ -460,28 +387,30 @@ ufs_setattr(vp, vap, cred)
  * Change the mode on a file.
  * Inode must be locked before calling.
  */
  * Change the mode on a file.
  * Inode must be locked before calling.
  */

-chmod1(vp, mode, cred)
+static int
+ufs_chmod(vp, mode, cred, p)

        register struct vnode *vp;
        register int mode;
        register struct vnode *vp;
        register int mode;

-       struct ucred *cred;
+       register struct ucred *cred;
+       struct proc *p;

 {
        register struct inode *ip = VTOI(vp);
        int error;
 
        if (cred->cr_uid != ip->i_uid &&
 {
        register struct inode *ip = VTOI(vp);
        int error;
 
        if (cred->cr_uid != ip->i_uid &&

-           (error = suser(cred, &u.u_acflag)))
+           (error = suser(cred, &p->p_acflag)))

                return (error);
                return (error);

-       ip->i_mode &= ~07777;

        if (cred->cr_uid) {
        if (cred->cr_uid) {

-               if (vp->v_type != VDIR)
-                       mode &= ~ISVTX;
-               if (!groupmember(ip->i_gid, cred))
-                       mode &= ~ISGID;
+               if (vp->v_type != VDIR && (mode & ISVTX))
+                       return (EFTYPE);
+               if (!groupmember(ip->i_gid, cred) && (mode & ISGID))
+                       return (EPERM);

        }
        }

+       ip->i_mode &= ~07777;

        ip->i_mode |= mode & 07777;
        ip->i_flag |= ICHG;
        if ((vp->v_flag & VTEXT) && (ip->i_mode & ISVTX) == 0)
        ip->i_mode |= mode & 07777;
        ip->i_flag |= ICHG;
        if ((vp->v_flag & VTEXT) && (ip->i_mode & ISVTX) == 0)

-               xrele(vp);
+               (void) vnode_pager_uncache(vp);

        return (0);
 }
 
        return (0);
 }
 


@@ -489,11 +418,13 @@ chmod1(vp, mode, cred)
  * Perform chown operation on inode ip;
  * inode must be locked prior to call.
  */
  * Perform chown operation on inode ip;
  * inode must be locked prior to call.
  */

-chown1(vp, uid, gid, cred)
+static int
+ufs_chown(vp, uid, gid, cred, p)

        register struct vnode *vp;
        uid_t uid;
        gid_t gid;
        struct ucred *cred;
        register struct vnode *vp;
        uid_t uid;
        gid_t gid;
        struct ucred *cred;

+       struct proc *p;

 {
        register struct inode *ip = VTOI(vp);
        uid_t ouid;
 {
        register struct inode *ip = VTOI(vp);
        uid_t ouid;


@@ -504,9 +435,9 @@ chown1(vp, uid, gid, cred)
        long change;
 #endif
 
        long change;
 #endif
 

-       if (uid == (u_short)VNOVAL)
+       if (uid == (uid_t)VNOVAL)

                uid = ip->i_uid;
                uid = ip->i_uid;

-       if (gid == (u_short)VNOVAL)
+       if (gid == (gid_t)VNOVAL)

                gid = ip->i_gid;
        /*
         * If we don't own the file, are trying to change the owner
                gid = ip->i_gid;
        /*
         * If we don't own the file, are trying to change the owner


@@ -515,7 +446,7 @@ chown1(vp, uid, gid, cred)
         */
        if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
            !groupmember((gid_t)gid, cred)) &&
         */
        if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
            !groupmember((gid_t)gid, cred)) &&

-           (error = suser(cred, &u.u_acflag)))
+           (error = suser(cred, &p->p_acflag)))

                return (error);
        ouid = ip->i_uid;
        ogid = ip->i_gid;
                return (error);
        ouid = ip->i_uid;
        ogid = ip->i_gid;


@@ -552,7 +483,7 @@ chown1(vp, uid, gid, cred)
                }
                if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
                        if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
                }
                if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
                        if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)

-                               return (0);
+                               goto good;

                        else
                                (void) chkdq(ip, -change, cred, CHOWN|FORCE);
                }
                        else
                                (void) chkdq(ip, -change, cred, CHOWN|FORCE);
                }


@@ -572,12 +503,15 @@ chown1(vp, uid, gid, cred)
                        dqrele(vp, ip->i_dquot[GRPQUOTA]);
                        ip->i_dquot[GRPQUOTA] = NODQUOT;
                }
                        dqrele(vp, ip->i_dquot[GRPQUOTA]);
                        ip->i_dquot[GRPQUOTA] = NODQUOT;
                }

-               (void) chkdq(ip, change, cred, FORCE);
-               (void) chkiq(ip, 1, cred, FORCE);
+               (void) chkdq(ip, change, cred, FORCE|CHOWN);
+               (void) chkiq(ip, 1, cred, FORCE|CHOWN);
+               (void) getinoquota(ip);

        }
        }

-       if (error)
-               return (error);
-#endif
+       return (error);
+good:
+       if (getinoquota(ip))
+               panic("chown: lost quota");
+#endif /* QUOTA */

        if (ouid != uid || ogid != gid)
                ip->i_flag |= ICHG;
        if (ouid != uid && cred->cr_uid != 0)
        if (ouid != uid || ogid != gid)
                ip->i_flag |= ICHG;
        if (ouid != uid && cred->cr_uid != 0)


@@ -587,178 +521,38 @@ chown1(vp, uid, gid, cred)
        return (0);
 }
 
        return (0);
 }
 

-/*
- * Vnode op for reading.
- */
-/* ARGSUSED */
-ufs_read(vp, uio, ioflag, cred)
-       struct vnode *vp;
-       register struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
-{
-       register struct inode *ip = VTOI(vp);
-       register struct fs *fs;
-       struct buf *bp;
-       daddr_t lbn, bn, rablock;
-       int size, diff, error = 0;
-       long n, on, type;
-
-       if (uio->uio_rw != UIO_READ)
-               panic("ufs_read mode");
-       type = ip->i_mode & IFMT;
-       if (type != IFDIR && type != IFREG && type != IFLNK)
-               panic("ufs_read type");
-       if (uio->uio_resid == 0)
-               return (0);
-       if (uio->uio_offset < 0)
-               return (EINVAL);
-       ip->i_flag |= IACC;
-       fs = ip->i_fs;
-       do {
-               lbn = lblkno(fs, uio->uio_offset);
-               on = blkoff(fs, uio->uio_offset);
-               n = MIN((unsigned)(fs->fs_bsize - on), uio->uio_resid);
-               diff = ip->i_size - uio->uio_offset;
-               if (diff <= 0)
-                       return (0);
-               if (diff < n)
-                       n = diff;
-               size = blksize(fs, ip, lbn);
-               rablock = lbn + 1;
-               if (vp->v_lastr + 1 == lbn &&
-                   lblktosize(fs, rablock) < ip->i_size)
-                       error = breada(ITOV(ip), lbn, size, rablock,
-                               blksize(fs, ip, rablock), NOCRED, &bp);
-               else
-                       error = bread(ITOV(ip), 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_un.b_addr + on, (int)n, uio);
-               if (n + on == fs->fs_bsize || uio->uio_offset == ip->i_size)
-                       bp->b_flags |= B_AGE;
-               brelse(bp);
-       } while (error == 0 && uio->uio_resid > 0 && n != 0);
-       return (error);
-}
-
-/*
- * Vnode op for writing.
- */
-ufs_write(vp, uio, ioflag, cred)
-       register struct vnode *vp;
-       struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
-{
-       register struct inode *ip = VTOI(vp);
-       register struct fs *fs;
-       struct buf *bp;
-       daddr_t lbn, bn;
-       u_long osize;
-       int i, n, on, flags;
-       int count, size, resid, error = 0;
-
-       if (uio->uio_rw != UIO_WRITE)
-               panic("ufs_write mode");
-       switch (vp->v_type) {
-       case VREG:
-               if (ioflag & IO_APPEND)
-                       uio->uio_offset = ip->i_size;
-               /* fall through */
-       case VLNK:
-               break;
-
-       case VDIR:
-               if ((ioflag & IO_SYNC) == 0)
-                       panic("ufs_write nonsync dir write");
-               break;
-
-       default:
-               panic("ufs_write type");
-       }
-       if (uio->uio_offset < 0)
-               return (EINVAL);
-       if (uio->uio_resid == 0)
-               return (0);
-       /*
-        * Maybe this should be above the vnode op call, but so long as
-        * file servers have no limits, i don't think it matters
-        */
-       if (vp->v_type == VREG &&
-           uio->uio_offset + uio->uio_resid >
-             u.u_rlimit[RLIMIT_FSIZE].rlim_cur) {
-               psignal(u.u_procp, SIGXFSZ);
-               return (EFBIG);
-       }
-       resid = uio->uio_resid;
-       osize = ip->i_size;
-       fs = ip->i_fs;
-       flags = 0;
-       if (ioflag & IO_SYNC)
-               flags = B_SYNC;
-       do {
-               lbn = lblkno(fs, uio->uio_offset);
-               on = blkoff(fs, uio->uio_offset);
-               n = MIN((unsigned)(fs->fs_bsize - on), uio->uio_resid);
-               if (n < fs->fs_bsize)
-                       flags |= B_CLRBUF;
-               else
-                       flags &= ~B_CLRBUF;
-               if (error = balloc(ip, lbn, (int)(on + n), &bp, flags))
-                       break;
-               bn = bp->b_blkno;
-               if (uio->uio_offset + n > ip->i_size)
-                       ip->i_size = uio->uio_offset + n;
-               size = blksize(fs, ip, lbn);
-               count = howmany(size, CLBYTES);
-               for (i = 0; i < count; i++)
-                       munhash(ip->i_devvp, bn + i * CLBYTES / DEV_BSIZE);
-               n = MIN(n, size - bp->b_resid);
-               error = uiomove(bp->b_un.b_addr + on, n, uio);
-               if (ioflag & IO_SYNC)
-                       (void) bwrite(bp);
-               else if (n + on == fs->fs_bsize) {
-                       bp->b_flags |= B_AGE;
-                       bawrite(bp);
-               } else
-                       bdwrite(bp);
-               ip->i_flag |= IUPD|ICHG;
-               if (cred->cr_uid != 0)
-                       ip->i_mode &= ~(ISUID|ISGID);
-       } while (error == 0 && uio->uio_resid > 0 && n != 0);
-       if (error && (ioflag & IO_UNIT)) {
-               (void) itrunc(ip, osize, ioflag & IO_SYNC);
-               uio->uio_offset -= resid - uio->uio_resid;
-               uio->uio_resid = resid;
-       }
-       return (error);
-}
-

 /* ARGSUSED */
 /* ARGSUSED */

-ufs_ioctl(vp, com, data, fflag, cred)
-       struct vnode *vp;
-       int com;
-       caddr_t data;
-       int fflag;
-       struct ucred *cred;
+int
+ufs_ioctl(ap)
+       struct vop_ioctl_args /* {
+               struct vnode *a_vp;
+               int  a_command;
+               caddr_t  a_data;
+               int  a_fflag;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 
        return (ENOTTY);
 }
 
 /* ARGSUSED */
 {
 
        return (ENOTTY);
 }
 
 /* ARGSUSED */

-ufs_select(vp, which, fflags, cred)
-       struct vnode *vp;
-       int which, fflags;
-       struct ucred *cred;
+int
+ufs_select(ap)
+       struct vop_select_args /* {
+               struct vnode *a_vp;
+               int  a_which;
+               int  a_fflags;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 
 {
 

-       return (1);             /* XXX */
+       /*
+        * We should really check to see if I/O is possible.
+        */
+       return (1);

 }
 
 /*
 }
 
 /*


@@ -767,43 +561,33 @@ ufs_select(vp, which, fflags, cred)
  * NB Currently unsupported.
  */
 /* ARGSUSED */
  * NB Currently unsupported.
  */
 /* ARGSUSED */

-ufs_mmap(vp, fflags, cred)
-       struct vnode *vp;
-       int fflags;
-       struct ucred *cred;
+int
+ufs_mmap(ap)
+       struct vop_mmap_args /* {
+               struct vnode *a_vp;
+               int  a_fflags;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 
        return (EINVAL);
 }
 
 {
 
        return (EINVAL);
 }
 

-/*
- * Synch an open file.
- */
-/* ARGSUSED */
-ufs_fsync(vp, fflags, cred, waitfor)
-       struct vnode *vp;
-       int fflags;
-       struct ucred *cred;
-       int waitfor;
-{
-       struct inode *ip = VTOI(vp);
-
-       if (fflags&FWRITE)
-               ip->i_flag |= ICHG;
-       vflushbuf(vp, waitfor == MNT_WAIT ? B_SYNC : 0);
-       return (iupdat(ip, &time, &time, waitfor == MNT_WAIT));
-}
-

 /*
  * Seek on a file
  *
  * Nothing to do, so just return.
  */
 /* ARGSUSED */
 /*
  * Seek on a file
  *
  * Nothing to do, so just return.
  */
 /* ARGSUSED */

-ufs_seek(vp, oldoff, newoff, cred)
-       struct vnode *vp;
-       off_t oldoff, newoff;
-       struct ucred *cred;
+int
+ufs_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);
 {
 
        return (0);


@@ -814,58 +598,255 @@ ufs_seek(vp, oldoff, newoff, cred)
  * Hard to avoid races here, especially
  * in unlinking directories.
  */
  * Hard to avoid races here, especially
  * in unlinking directories.
  */

-ufs_remove(ndp)
-       struct nameidata *ndp;
+int
+ufs_remove(ap)
+       struct vop_remove_args /* {
+               struct vnode *a_dvp;
+               struct vnode *a_vp;
+               struct componentname *a_cnp;
+       } */ *ap;

 {
 {

-       register struct inode *ip, *dp;
+       register struct inode *ip;
+       register struct vnode *vp = ap->a_vp;
+       register struct vnode *dvp = ap->a_dvp;

        int error;
 
        int error;
 

-       ip = VTOI(ndp->ni_vp);
-       dp = VTOI(ndp->ni_dvp);
-       error = dirremove(ndp);
-       if (!error) {
+       ip = VTOI(vp);
+       if ((ip->i_flags & (IMMUTABLE | APPEND)) ||
+           (VTOI(dvp)->i_flags & APPEND)) {
+               error = EPERM;
+               goto out;
+       }
+       if ((error = ufs_dirremove(dvp, ap->a_cnp)) == 0) {

                ip->i_nlink--;
                ip->i_flag |= ICHG;
        }
                ip->i_nlink--;
                ip->i_flag |= ICHG;
        }

-       if (dp == ip)
-               vrele(ITOV(ip));
+out:
+       if (dvp == vp)
+               vrele(vp);

        else
        else

-               iput(ip);
-       iput(dp);
+               vput(vp);
+       vput(dvp);

        return (error);
 }
 
 /*
  * link vnode call
  */
        return (error);
 }
 
 /*
  * link vnode call
  */

-ufs_link(vp, ndp)
-       register struct vnode *vp;
-       register struct nameidata *ndp;
+int
+ufs_link(ap)
+       struct vop_link_args /* {
+               struct vnode *a_vp;
+               struct vnode *a_tdvp;
+               struct componentname *a_cnp;
+       } */ *ap;

 {
 {

-       register struct inode *ip = VTOI(vp);
+       register struct vnode *vp = ap->a_vp;
+       register struct vnode *tdvp = ap->a_tdvp;
+       register struct componentname *cnp = ap->a_cnp;
+       register struct inode *ip;
+       struct timeval tv;

        int error;
 
        int error;
 

-       if (ndp->ni_dvp != vp)
-               ILOCK(ip);
-       if (ip->i_nlink == LINK_MAX - 1) {
+#ifdef DIAGNOSTIC
+       if ((cnp->cn_flags & HASBUF) == 0)
+               panic("ufs_link: no name");
+#endif
+       if (vp->v_mount != tdvp->v_mount) {
+               VOP_ABORTOP(vp, cnp);
+               error = EXDEV;
+               goto out2;
+       }
+       if (vp != tdvp && (error = VOP_LOCK(tdvp))) {
+               VOP_ABORTOP(vp, cnp);
+               goto out2;
+       }
+       ip = VTOI(tdvp);
+       if ((nlink_t)ip->i_nlink >= LINK_MAX) {
+               VOP_ABORTOP(vp, cnp);

                error = EMLINK;
                error = EMLINK;

-               goto out;
+               goto out1;
+       }
+       if (ip->i_flags & (IMMUTABLE | APPEND)) {
+               VOP_ABORTOP(vp, cnp);
+               error = EPERM;
+               goto out1;

        }
        ip->i_nlink++;
        ip->i_flag |= ICHG;
        }
        ip->i_nlink++;
        ip->i_flag |= ICHG;

-       error = iupdat(ip, &time, &time, 1);
+       tv = time;
+       error = VOP_UPDATE(tdvp, &tv, &tv, 1);

        if (!error)
        if (!error)

-               error = direnter(ip, ndp);
-out:
-       if (ndp->ni_dvp != vp)
-               IUNLOCK(ip);
+               error = ufs_direnter(ip, vp, cnp);

        if (error) {
                ip->i_nlink--;
                ip->i_flag |= ICHG;
        }
        if (error) {
                ip->i_nlink--;
                ip->i_flag |= ICHG;
        }

+       FREE(cnp->cn_pnbuf, M_NAMEI);
+out1:
+       if (vp != tdvp)
+               VOP_UNLOCK(tdvp);
+out2:
+       vput(vp);

        return (error);
 }
 
        return (error);
 }
 

+
+
+/*
+ * relookup - lookup a path name component
+ *    Used by lookup to re-aquire things.
+ */
+int
+relookup(dvp, vpp, cnp)
+       struct vnode *dvp, **vpp;
+       struct componentname *cnp;
+{
+       register struct vnode *dp = 0;  /* the directory we are searching */
+       struct vnode *tdp;              /* saved dp */
+       struct mount *mp;               /* mount table entry */
+       int docache;                    /* == 0 do not cache last component */
+       int wantparent;                 /* 1 => wantparent or lockparent flag */
+       int rdonly;                     /* lookup read-only flag bit */
+       char *cp;                       /* DEBUG: check name ptr/len */
+       int newhash;                    /* DEBUG: check name hash */
+       int error = 0;
+
+       /*
+        * Setup: break out flag bits into variables.
+        */
+       wantparent = cnp->cn_flags & (LOCKPARENT|WANTPARENT);
+       docache = (cnp->cn_flags & NOCACHE) ^ NOCACHE;
+       if (cnp->cn_nameiop == DELETE ||
+           (wantparent && cnp->cn_nameiop != CREATE))
+               docache = 0;
+       rdonly = cnp->cn_flags & RDONLY;
+       cnp->cn_flags &= ~ISSYMLINK;
+       dp = dvp;
+       VOP_LOCK(dp);
+
+/* dirloop: */
+       /*
+        * Search a new directory.
+        *
+        * The cn_hash value is for use by vfs_cache.
+        * The last component of the filename is left accessible via
+        * cnp->cn_nameptr for callers that need the name. Callers needing
+        * the name set the SAVENAME flag. When done, they assume
+        * responsibility for freeing the pathname buffer.
+        */
+#ifdef NAMEI_DIAGNOSTIC
+       for (newhash = 0, cp = cnp->cn_nameptr; *cp != 0 && *cp != '/'; cp++)
+               newhash += (unsigned char)*cp;
+       if (newhash != cnp->cn_hash)
+               panic("relookup: bad hash");
+       if (cnp->cn_namelen != cp - cnp->cn_nameptr)
+               panic ("relookup: bad len");
+       if (*cp != 0)
+               panic("relookup: not last component");
+       printf("{%s}: ", cnp->cn_nameptr);
+#endif
+
+       /*
+        * Check for degenerate name (e.g. / or "")
+        * which is a way of talking about a directory,
+        * e.g. like "/." or ".".
+        */
+       if (cnp->cn_nameptr[0] == '\0') {
+               if (cnp->cn_nameiop != LOOKUP || wantparent) {
+                       error = EISDIR;
+                       goto bad;
+               }
+               if (dp->v_type != VDIR) {
+                       error = ENOTDIR;
+                       goto bad;
+               }
+               if (!(cnp->cn_flags & LOCKLEAF))
+                       VOP_UNLOCK(dp);
+               *vpp = dp;
+               if (cnp->cn_flags & SAVESTART)
+                       panic("lookup: SAVESTART");
+               return (0);
+       }
+
+       if (cnp->cn_flags & ISDOTDOT)
+               panic ("relookup: lookup on dot-dot");
+
+       /*
+        * We now have a segment name to search for, and a directory to search.
+        */
+       if (error = VOP_LOOKUP(dp, vpp, cnp)) {
+#ifdef DIAGNOSTIC
+               if (*vpp != NULL)
+                       panic("leaf should be empty");
+#endif
+               if (error != EJUSTRETURN)
+                       goto bad;
+               /*
+                * If creating and at end of pathname, then can consider
+                * allowing file to be created.
+                */
+               if (rdonly || (dvp->v_mount->mnt_flag & MNT_RDONLY)) {
+                       error = EROFS;
+                       goto bad;
+               }
+               /* ASSERT(dvp == ndp->ni_startdir) */
+               if (cnp->cn_flags & SAVESTART)
+                       VREF(dvp);
+               /*
+                * We return with ni_vp NULL to indicate that the entry
+                * doesn't currently exist, leaving a pointer to the
+                * (possibly locked) directory inode in ndp->ni_dvp.
+                */
+               return (0);
+       }
+       dp = *vpp;
+
+#ifdef DIAGNOSTIC
+       /*
+        * Check for symbolic link
+        */
+       if (dp->v_type == VLNK && (cnp->cn_flags & FOLLOW))
+               panic ("relookup: symlink found.\n");
+#endif
+
+nextname:
+       /*
+        * Check for read-only file systems.
+        */
+       if (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME) {
+               /*
+                * Disallow directory write attempts on read-only
+                * file systems.
+                */
+               if (rdonly || (dp->v_mount->mnt_flag & MNT_RDONLY) ||
+                   (wantparent &&
+                    (dvp->v_mount->mnt_flag & MNT_RDONLY))) {
+                       error = EROFS;
+                       goto bad2;
+               }
+       }
+       /* ASSERT(dvp == ndp->ni_startdir) */
+       if (cnp->cn_flags & SAVESTART)
+               VREF(dvp);
+       
+       if (!wantparent)
+               vrele(dvp);
+       if ((cnp->cn_flags & LOCKLEAF) == 0)
+               VOP_UNLOCK(dp);
+       return (0);
+
+bad2:
+       if ((cnp->cn_flags & LOCKPARENT) && (cnp->cn_flags & ISLASTCN))
+               VOP_UNLOCK(dvp);
+       vrele(dvp);
+bad:
+       vput(dp);
+       *vpp = NULL;
+       return (error);
+}
+
+

 /*
  * Rename system call.
  *     rename("foo", "bar");
 /*
  * Rename system call.
  *     rename("foo", "bar");


@@ -890,35 +871,116 @@ out:
  *    is different from the source, patch the ".." entry in the
  *    directory.
  */
  *    is different from the source, patch the ".." entry in the
  *    directory.
  */

-ufs_rename(fndp, tndp)
-       register struct nameidata *fndp, *tndp;
+int
+ufs_rename(ap)
+       struct vop_rename_args  /* {
+               struct vnode *a_fdvp;
+               struct vnode *a_fvp;
+               struct componentname *a_fcnp;
+               struct vnode *a_tdvp;
+               struct vnode *a_tvp;
+               struct componentname *a_tcnp;
+       } */ *ap;

 {
 {

+       struct vnode *tvp = ap->a_tvp;
+       register struct vnode *tdvp = ap->a_tdvp;
+       struct vnode *fvp = ap->a_fvp;
+       register struct vnode *fdvp = ap->a_fdvp;
+       register struct componentname *tcnp = ap->a_tcnp;
+       register struct componentname *fcnp = ap->a_fcnp;

        register struct inode *ip, *xp, *dp;
        struct dirtemplate dirbuf;
        register struct inode *ip, *xp, *dp;
        struct dirtemplate dirbuf;

+       struct timeval tv;

        int doingdirectory = 0, oldparent = 0, newparent = 0;
        int error = 0;
        int doingdirectory = 0, oldparent = 0, newparent = 0;
        int error = 0;

+       int fdvpneedsrele = 1, tdvpneedsrele = 1;
+       u_char namlen;

 
 

-       dp = VTOI(fndp->ni_dvp);
-       ip = VTOI(fndp->ni_vp);
-       ILOCK(ip);
-       if ((ip->i_mode&IFMT) == IFDIR) {
-               register struct direct *d = &fndp->ni_dent;
+#ifdef DIAGNOSTIC
+       if ((tcnp->cn_flags & HASBUF) == 0 ||
+           (fcnp->cn_flags & HASBUF) == 0)
+               panic("ufs_rename: no name");
+#endif
+       /*
+        * Check for cross-device rename.
+        */
+       if ((fvp->v_mount != tdvp->v_mount) ||
+           (tvp && (fvp->v_mount != tvp->v_mount))) {
+               error = EXDEV;
+abortit:
+               VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */
+               if (tdvp == tvp)
+                       vrele(tdvp);
+               else
+                       vput(tdvp);
+               if (tvp)
+                       vput(tvp);
+               VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */
+               vrele(fdvp);
+               vrele(fvp);
+               return (error);
+       }

 
 

+       /*
+        * Check if just deleting a link name.
+        */
+       if (tvp && ((VTOI(tvp)->i_flags & (IMMUTABLE | APPEND)) ||
+           (VTOI(tdvp)->i_flags & APPEND))) {
+               error = EPERM;
+               goto abortit;
+       }
+       if (fvp == tvp) {
+               if (fvp->v_type == VDIR) {
+                       error = EINVAL;
+                       goto abortit;
+               }
+               VOP_ABORTOP(fdvp, fcnp);
+               vrele(fdvp);
+               vrele(fvp);
+               vput(tdvp);
+               vput(tvp);
+               tcnp->cn_flags &= ~MODMASK;
+               tcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
+               if ((tcnp->cn_flags & SAVESTART) == 0)
+                       panic("ufs_rename: lost from startdir");
+               tcnp->cn_nameiop = DELETE;
+               (void) relookup(tdvp, &tvp, tcnp);
+               return (VOP_REMOVE(tdvp, tvp, tcnp));
+       }
+       if (error = VOP_LOCK(fvp))
+               goto abortit;
+       dp = VTOI(fdvp);
+       ip = VTOI(fvp);
+       if ((ip->i_flags & (IMMUTABLE | APPEND)) || (dp->i_flags & APPEND)) {
+               VOP_UNLOCK(fvp);
+               error = EPERM;
+               goto abortit;
+       }
+       if ((ip->i_mode & IFMT) == IFDIR) {

                /*
                 * Avoid ".", "..", and aliases of "." for obvious reasons.
                 */
                /*
                 * Avoid ".", "..", and aliases of "." for obvious reasons.
                 */

-               if ((d->d_namlen == 1 && d->d_name[0] == '.') || dp == ip ||
-                   fndp->ni_isdotdot || (ip->i_flag & IRENAME)) {
-                       IUNLOCK(ip);
-                       ufs_abortop(fndp);
-                       ufs_abortop(tndp);
-                       return (EINVAL);
+               if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
+                   dp == ip || (fcnp->cn_flags&ISDOTDOT) ||
+                   (ip->i_flag & IRENAME)) {
+                       VOP_UNLOCK(fvp);
+                       error = EINVAL;
+                       goto abortit;

                }
                ip->i_flag |= IRENAME;
                oldparent = dp->i_number;
                doingdirectory++;
        }
                }
                ip->i_flag |= IRENAME;
                oldparent = dp->i_number;
                doingdirectory++;
        }

-       vrele(fndp->ni_dvp);
+       vrele(fdvp);
+
+       /*
+        * When the target exists, both the directory
+        * and target vnodes are returned locked.
+        */
+       dp = VTOI(tdvp);
+       xp = NULL;
+       if (tvp)
+               xp = VTOI(tvp);

 
        /*
         * 1) Bump link count while we're moving stuff
 
        /*
         * 1) Bump link count while we're moving stuff


@@ -928,17 +990,12 @@ ufs_rename(fndp, tndp)
         */
        ip->i_nlink++;
        ip->i_flag |= ICHG;
         */
        ip->i_nlink++;
        ip->i_flag |= ICHG;

-       error = iupdat(ip, &time, &time, 1);
-       IUNLOCK(ip);
+       tv = time;
+       if (error = VOP_UPDATE(fvp, &tv, &tv, 1)) {
+               VOP_UNLOCK(fvp);
+               goto bad;
+       }

 
 

-       /*
-        * When the target exists, both the directory
-        * and target vnodes are returned locked.
-        */
-       dp = VTOI(tndp->ni_dvp);
-       xp = NULL;
-       if (tndp->ni_vp)
-               xp = VTOI(tndp->ni_vp);

        /*
         * If ".." must be changed (ie the directory gets a new
         * parent) then the source directory must not be in the
        /*
         * If ".." must be changed (ie the directory gets a new
         * parent) then the source directory must not be in the


@@ -949,27 +1006,25 @@ ufs_rename(fndp, tndp)
         * to namei, as the parent directory is unlocked by the
         * call to checkpath().
         */
         * to namei, as the parent directory is unlocked by the
         * call to checkpath().
         */

+       error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc);
+       VOP_UNLOCK(fvp);

        if (oldparent != dp->i_number)
                newparent = dp->i_number;
        if (doingdirectory && newparent) {
        if (oldparent != dp->i_number)
                newparent = dp->i_number;
        if (doingdirectory && newparent) {

-               VOP_LOCK(fndp->ni_vp);
-               error = ufs_access(fndp->ni_vp, VWRITE, tndp->ni_cred);
-               VOP_UNLOCK(fndp->ni_vp);
-               if (error)
+               if (error)      /* write access check above */

                        goto bad;
                        goto bad;

-               tndp->ni_nameiop = RENAME | LOCKPARENT | LOCKLEAF | NOCACHE;
-               do {
-                       dp = VTOI(tndp->ni_dvp);
-                       if (xp != NULL)
-                               iput(xp);
-                       if (error = checkpath(ip, dp, tndp->ni_cred))
-                               goto out;
-                       if (error = namei(tndp))
-                               goto out;
-                       xp = NULL;
-                       if (tndp->ni_vp)
-                               xp = VTOI(tndp->ni_vp);
-               } while (dp != VTOI(tndp->ni_dvp));
+               if (xp != NULL)
+                       vput(tvp);
+               if (error = ufs_checkpath(ip, dp, tcnp->cn_cred))
+                       goto out;
+               if ((tcnp->cn_flags & SAVESTART) == 0)
+                       panic("ufs_rename: lost to startdir");
+               if (error = relookup(tdvp, &tvp, tcnp))
+                       goto out;
+               dp = VTOI(tdvp);
+               xp = NULL;
+               if (tvp)
+                       xp = VTOI(tvp);

        }
        /*
         * 2) If target doesn't exist, link the target
        }
        /*
         * 2) If target doesn't exist, link the target


@@ -987,12 +1042,24 @@ ufs_rename(fndp, tndp)
                 * parent we don't fool with the link count.
                 */
                if (doingdirectory && newparent) {
                 * parent we don't fool with the link count.
                 */
                if (doingdirectory && newparent) {

+                       if ((nlink_t)dp->i_nlink >= LINK_MAX) {
+                               error = EMLINK;
+                               goto bad;
+                       }

                        dp->i_nlink++;
                        dp->i_flag |= ICHG;
                        dp->i_nlink++;
                        dp->i_flag |= ICHG;

-                       error = iupdat(dp, &time, &time, 1);
+                       if (error = VOP_UPDATE(tdvp, &tv, &tv, 1))
+                               goto bad;

                }
                }

-               if (error = direnter(ip, tndp))
-                       goto out;
+               if (error = ufs_direnter(ip, tdvp, tcnp)) {
+                       if (doingdirectory && newparent) {
+                               dp->i_nlink--;
+                               dp->i_flag |= ICHG;
+                               (void)VOP_UPDATE(tdvp, &tv, &tv, 1);
+                       }
+                       goto bad;
+               }
+               vput(tdvp);

        } else {
                if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
                        panic("rename: EXDEV");
        } else {
                if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
                        panic("rename: EXDEV");


@@ -1007,21 +1074,19 @@ ufs_rename(fndp, tndp)
                 * otherwise the destination may not be changed (except by
                 * root). This implements append-only directories.
                 */
                 * otherwise the destination may not be changed (except by
                 * root). This implements append-only directories.
                 */

-               if ((dp->i_mode & ISVTX) && tndp->ni_cred->cr_uid != 0 &&
-                   tndp->ni_cred->cr_uid != dp->i_uid &&
-                   xp->i_uid != tndp->ni_cred->cr_uid) {
+               if ((dp->i_mode & ISVTX) && tcnp->cn_cred->cr_uid != 0 &&
+                   tcnp->cn_cred->cr_uid != dp->i_uid &&
+                   xp->i_uid != tcnp->cn_cred->cr_uid) {

                        error = EPERM;
                        goto bad;
                }
                /*
                        error = EPERM;
                        goto bad;
                }
                /*

-                * Target must be empty if a directory
-                * and have no links to it.
-                * Also, insure source and target are
-                * compatible (both directories, or both
-                * not directories).
+                * Target must be empty if a directory and have no links
+                * to it. Also, ensure source and target are compatible
+                * (both directories, or both not directories).

                 */
                if ((xp->i_mode&IFMT) == IFDIR) {
                 */
                if ((xp->i_mode&IFMT) == IFDIR) {

-                       if (!dirempty(xp, dp->i_number, tndp->ni_cred) || 
+                       if (!ufs_dirempty(xp, dp->i_number, tcnp->cn_cred) || 

                            xp->i_nlink > 2) {
                                error = ENOTEMPTY;
                                goto bad;
                            xp->i_nlink > 2) {
                                error = ENOTEMPTY;
                                goto bad;


@@ -1030,14 +1095,24 @@ ufs_rename(fndp, tndp)
                                error = ENOTDIR;
                                goto bad;
                        }
                                error = ENOTDIR;
                                goto bad;
                        }

-                       cache_purge(ITOV(dp));
+                       cache_purge(tdvp);

                } else if (doingdirectory) {
                        error = EISDIR;
                        goto bad;
                }
                } else if (doingdirectory) {
                        error = EISDIR;
                        goto bad;
                }

-               if (error = dirrewrite(dp, ip, tndp))
+               if (error = ufs_dirrewrite(dp, ip, tcnp))

                        goto bad;
                        goto bad;

-               vput(ITOV(dp));
+               /*
+                * If the target directory is in the same
+                * directory as the source directory,
+                * decrement the link count on the parent
+                * of the target directory.
+                */
+                if (doingdirectory && !newparent) {
+                       dp->i_nlink--;
+                       dp->i_flag |= ICHG;
+               }
+               vput(tdvp);

                /*
                 * Adjust the link count of the target to
                 * reflect the dirrewrite above.  If this is
                /*
                 * Adjust the link count of the target to
                 * reflect the dirrewrite above.  If this is


@@ -1052,26 +1127,33 @@ ufs_rename(fndp, tndp)
                if (doingdirectory) {
                        if (--xp->i_nlink != 0)
                                panic("rename: linked directory");
                if (doingdirectory) {
                        if (--xp->i_nlink != 0)
                                panic("rename: linked directory");

-                       error = itrunc(xp, (u_long)0, IO_SYNC);
+                       error = VOP_TRUNCATE(tvp, (off_t)0, IO_SYNC,
+                           tcnp->cn_cred, tcnp->cn_proc);

                }
                xp->i_flag |= ICHG;
                }
                xp->i_flag |= ICHG;

-               iput(xp);
+               vput(tvp);

                xp = NULL;
        }
 
        /*
         * 3) Unlink the source.
         */
                xp = NULL;
        }
 
        /*
         * 3) Unlink the source.
         */

-       fndp->ni_nameiop = DELETE | LOCKPARENT | LOCKLEAF;
-       (void)namei(fndp);
-       if (fndp->ni_vp != NULL) {
-               xp = VTOI(fndp->ni_vp);
-               dp = VTOI(fndp->ni_dvp);
+       fcnp->cn_flags &= ~MODMASK;
+       fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
+       if ((fcnp->cn_flags & SAVESTART) == 0)
+               panic("ufs_rename: lost from startdir");
+       (void) relookup(fdvp, &fvp, fcnp);
+       if (fvp != NULL) {
+               xp = VTOI(fvp);
+               dp = VTOI(fdvp);

        } else {
        } else {

-               if (fndp->ni_dvp != NULL)
-                       vput(fndp->ni_dvp);
-               xp = NULL;
-               dp = NULL;
+               /*
+                * From name has disappeared.
+                */
+               if (doingdirectory)
+                       panic("rename: lost dir entry");
+               vrele(ap->a_fvp);
+               return (0);

        }
        /*
         * Ensure that the directory entry still exists and has not
        }
        /*
         * Ensure that the directory entry still exists and has not


@@ -1096,28 +1178,38 @@ ufs_rename(fndp, tndp)
                if (doingdirectory && newparent) {
                        dp->i_nlink--;
                        dp->i_flag |= ICHG;
                if (doingdirectory && newparent) {
                        dp->i_nlink--;
                        dp->i_flag |= ICHG;

-                       error = vn_rdwr(UIO_READ, ITOV(xp), (caddr_t)&dirbuf,
+                       error = vn_rdwr(UIO_READ, fvp, (caddr_t)&dirbuf,

                                sizeof (struct dirtemplate), (off_t)0,
                                UIO_SYSSPACE, IO_NODELOCKED, 
                                sizeof (struct dirtemplate), (off_t)0,
                                UIO_SYSSPACE, IO_NODELOCKED, 

-                               tndp->ni_cred, (int *)0);
+                               tcnp->cn_cred, (int *)0, (struct proc *)0);

                        if (error == 0) {
                        if (error == 0) {

-                               if (dirbuf.dotdot_namlen != 2 ||
+#                              if (BYTE_ORDER == LITTLE_ENDIAN)
+                                       if (fvp->v_mount->mnt_maxsymlinklen <= 0)
+                                               namlen = dirbuf.dotdot_type;
+                                       else
+                                               namlen = dirbuf.dotdot_namlen;
+#                              else
+                                       namlen = dirbuf.dotdot_namlen;
+#                              endif
+                               if (namlen != 2 ||

                                    dirbuf.dotdot_name[0] != '.' ||
                                    dirbuf.dotdot_name[1] != '.') {
                                    dirbuf.dotdot_name[0] != '.' ||
                                    dirbuf.dotdot_name[1] != '.') {

-                                       dirbad(xp, 12, "rename: mangled dir");
+                                       ufs_dirbad(xp, (doff_t)12,
+                                           "rename: mangled dir");

                                } else {
                                        dirbuf.dotdot_ino = newparent;
                                } else {
                                        dirbuf.dotdot_ino = newparent;

-                                       (void) vn_rdwr(UIO_WRITE, ITOV(xp),
+                                       (void) vn_rdwr(UIO_WRITE, fvp,

                                            (caddr_t)&dirbuf,
                                            sizeof (struct dirtemplate),
                                            (off_t)0, UIO_SYSSPACE,
                                            IO_NODELOCKED|IO_SYNC,
                                            (caddr_t)&dirbuf,
                                            sizeof (struct dirtemplate),
                                            (off_t)0, UIO_SYSSPACE,
                                            IO_NODELOCKED|IO_SYNC,

-                                           tndp->ni_cred, (int *)0);
-                                       cache_purge(ITOV(dp));
+                                           tcnp->cn_cred, (int *)0,
+                                           (struct proc *)0);
+                                       cache_purge(fdvp);

                                }
                        }
                }
                                }
                        }
                }

-               error = dirremove(fndp);
+               error = ufs_dirremove(fdvp, fcnp);

                if (!error) {
                        xp->i_nlink--;
                        xp->i_flag |= ICHG;
                if (!error) {
                        xp->i_nlink--;
                        xp->i_flag |= ICHG;


@@ -1125,10 +1217,10 @@ ufs_rename(fndp, tndp)
                xp->i_flag &= ~IRENAME;
        }
        if (dp)
                xp->i_flag &= ~IRENAME;
        }
        if (dp)

-               vput(ITOV(dp));
+               vput(fdvp);

        if (xp)
        if (xp)

-               vput(ITOV(xp));
-       vrele(ITOV(ip));
+               vput(fvp);
+       vrele(ap->a_fvp);

        return (error);
 
 bad:
        return (error);
 
 bad:


@@ -1136,16 +1228,23 @@ bad:
                vput(ITOV(xp));
        vput(ITOV(dp));
 out:
                vput(ITOV(xp));
        vput(ITOV(dp));
 out:

-       ip->i_nlink--;
-       ip->i_flag |= ICHG;
-       vrele(ITOV(ip));
+       if (VOP_LOCK(fvp) == 0) {
+               ip->i_nlink--;
+               ip->i_flag |= ICHG;
+               vput(fvp);
+       } else
+               vrele(fvp);

        return (error);
 }
 
 /*
  * A virgin directory (no blushing please).
  */
        return (error);
 }
 
 /*
  * A virgin directory (no blushing please).
  */

-struct dirtemplate mastertemplate = {
+static struct dirtemplate mastertemplate = {
+       0, 12, DT_DIR, 1, ".",
+       0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
+};
+static struct odirtemplate omastertemplate = {

        0, 12, 1, ".",
        0, DIRBLKSIZ - 12, 2, ".."
 };
        0, 12, 1, ".",
        0, DIRBLKSIZ - 12, 2, ".."
 };


@@ -1153,49 +1252,61 @@ struct dirtemplate mastertemplate = {
 /*
  * Mkdir system call
  */
 /*
  * Mkdir system call
  */

-ufs_mkdir(ndp, vap)
-       struct nameidata *ndp;
-       struct vattr *vap;
+int
+ufs_mkdir(ap)
+       struct vop_mkdir_args /* {
+               struct vnode *a_dvp;
+               struct vnode **a_vpp;
+               struct componentname *a_cnp;
+               struct vattr *a_vap;
+       } */ *ap;

 {
 {

+       register struct vnode *dvp = ap->a_dvp;
+       register struct vattr *vap = ap->a_vap;
+       register struct componentname *cnp = ap->a_cnp;

        register struct inode *ip, *dp;
        register struct inode *ip, *dp;

-       struct inode *tip;
-       struct vnode *dvp;
-       struct dirtemplate dirtemplate;
-       int error;
-       int dmode;
+       struct vnode *tvp;
+       struct dirtemplate dirtemplate, *dtp;
+       struct timeval tv;
+       int error, dmode;

 
 

-       dvp = ndp->ni_dvp;
+#ifdef DIAGNOSTIC
+       if ((cnp->cn_flags & HASBUF) == 0)
+               panic("ufs_mkdir: no name");
+#endif

        dp = VTOI(dvp);
        dp = VTOI(dvp);

-       dmode = vap->va_mode&0777;
+       if ((nlink_t)dp->i_nlink >= LINK_MAX) {
+               error = EMLINK;
+               goto out;
+       }
+       dmode = vap->va_mode & 0777;

        dmode |= IFDIR;
        /*
        dmode |= IFDIR;
        /*

-        * Must simulate part of maknode here
-        * in order to acquire the inode, but
-        * not have it entered in the parent
-        * directory.  The entry is made later
-        * after writing "." and ".." entries out.
+        * Must simulate part of ufs_makeinode here to acquire the inode,
+        * but not have it entered in the parent directory. The entry is
+        * made later after writing "." and ".." entries.

         */
         */

-       if (error = ialloc(dp, dirpref(dp->i_fs), dmode, ndp->ni_cred, &tip)) {
-               iput(dp);
-               return (error);
-       }
-       ip = tip;
-       ip->i_uid = ndp->ni_cred->cr_uid;
+       if (error = VOP_VALLOC(dvp, dmode, cnp->cn_cred, &tvp))
+               goto out;
+       ip = VTOI(tvp);
+       ip->i_uid = cnp->cn_cred->cr_uid;

        ip->i_gid = dp->i_gid;
 #ifdef QUOTA
        if ((error = getinoquota(ip)) ||
        ip->i_gid = dp->i_gid;
 #ifdef QUOTA
        if ((error = getinoquota(ip)) ||

-           (error = chkiq(ip, 1, ndp->ni_cred, 0))) {
-               ifree(ip, ip->i_number, dmode);
-               iput(ip);
-               iput(dp);
+           (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
+               free(cnp->cn_pnbuf, M_NAMEI);
+               VOP_VFREE(tvp, ip->i_number, dmode);
+               vput(tvp);
+               vput(dvp);

                return (error);
        }
 #endif
        ip->i_flag |= IACC|IUPD|ICHG;
        ip->i_mode = dmode;
                return (error);
        }
 #endif
        ip->i_flag |= IACC|IUPD|ICHG;
        ip->i_mode = dmode;

-       ITOV(ip)->v_type = VDIR;        /* Rest init'd in iget() */
+       tvp->v_type = VDIR;     /* Rest init'd in iget() */

        ip->i_nlink = 2;
        ip->i_nlink = 2;

-       error = iupdat(ip, &time, &time, 1);
+       tv = time;
+       error = VOP_UPDATE(tvp, &tv, &tv, 1);

 
        /*
         * Bump link count in parent directory
 
        /*
         * Bump link count in parent directory


@@ -1205,77 +1316,79 @@ ufs_mkdir(ndp, vap)
         */
        dp->i_nlink++;
        dp->i_flag |= ICHG;
         */
        dp->i_nlink++;
        dp->i_flag |= ICHG;

-       error = iupdat(dp, &time, &time, 1);
+       if (error = VOP_UPDATE(dvp, &tv, &tv, 1))
+               goto bad;

 
 

-       /*
-        * Initialize directory with "."
-        * and ".." from static template.
-        */
-       dirtemplate = mastertemplate;
+       /* Initialize directory with "." and ".." from static template. */
+       if (dvp->v_mount->mnt_maxsymlinklen > 0)
+               dtp = &mastertemplate;
+       else
+               dtp = (struct dirtemplate *)&omastertemplate;
+       dirtemplate = *dtp;

        dirtemplate.dot_ino = ip->i_number;
        dirtemplate.dotdot_ino = dp->i_number;
        dirtemplate.dot_ino = ip->i_number;
        dirtemplate.dotdot_ino = dp->i_number;

-       error = vn_rdwr(UIO_WRITE, ITOV(ip), (caddr_t)&dirtemplate,
-               sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE,
-               IO_NODELOCKED|IO_SYNC, ndp->ni_cred, (int *)0);
+       error = vn_rdwr(UIO_WRITE, tvp, (caddr_t)&dirtemplate,
+           sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE,
+           IO_NODELOCKED|IO_SYNC, cnp->cn_cred, (int *)0, (struct proc *)0);

        if (error) {
                dp->i_nlink--;
                dp->i_flag |= ICHG;
                goto bad;
        }
        if (error) {
                dp->i_nlink--;
                dp->i_flag |= ICHG;
                goto bad;
        }

-       if (DIRBLKSIZ > dp->i_fs->fs_fsize)
-               panic("mkdir: blksize");     /* XXX - should grow w/balloc() */
-       else
+       if (DIRBLKSIZ > VFSTOUFS(dvp->v_mount)->um_mountp->mnt_stat.f_bsize)
+               panic("ufs_mkdir: blksize"); /* XXX should grow with balloc() */
+       else {

                ip->i_size = DIRBLKSIZ;
                ip->i_size = DIRBLKSIZ;

-       /*
-        * Directory all set up, now
-        * install the entry for it in
-        * the parent directory.
-        */
-       error = direnter(ip, ndp);
-       dp = NULL;
-       if (error) {
-               ndp->ni_nameiop = LOOKUP | NOCACHE;
-               error = namei(ndp);
-               if (!error) {
-                       dp = VTOI(ndp->ni_vp);
-                       dp->i_nlink--;
-                       dp->i_flag |= ICHG;
-               }
+               ip->i_flag |= ICHG;
+       }
+
+       /* Directory set up, now install it's entry in the parent directory. */
+       if (error = ufs_direnter(ip, dvp, cnp)) {
+               dp->i_nlink--;
+               dp->i_flag |= ICHG;

        }
 bad:
        /*
        }
 bad:
        /*

-        * No need to do an explicit itrunc here,
-        * vrele will do this for us because we set
-        * the link count to 0.
+        * No need to do an explicit VOP_TRUNCATE here, vrele will do this
+        * for us because we set the link count to 0.

         */
        if (error) {
                ip->i_nlink = 0;
                ip->i_flag |= ICHG;
         */
        if (error) {
                ip->i_nlink = 0;
                ip->i_flag |= ICHG;

-               iput(ip);
+               vput(tvp);

        } else
        } else

-               ndp->ni_vp = ITOV(ip);
-       if (dp)
-               iput(dp);
+               *ap->a_vpp = tvp;
+out:
+       FREE(cnp->cn_pnbuf, M_NAMEI);
+       vput(dvp);

        return (error);
 }
 
 /*
  * Rmdir system call.
  */
        return (error);
 }
 
 /*
  * Rmdir system call.
  */

-ufs_rmdir(ndp)
-       register struct nameidata *ndp;
+int
+ufs_rmdir(ap)
+       struct vop_rmdir_args /* {
+               struct vnode *a_dvp;
+               struct vnode *a_vp;
+               struct componentname *a_cnp;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;
+       register struct vnode *dvp = ap->a_dvp;
+       register struct componentname *cnp = ap->a_cnp;

        register struct inode *ip, *dp;
        register struct inode *ip, *dp;

-       int error = 0;
+       int error;

 
 

-       ip = VTOI(ndp->ni_vp);
-       dp = VTOI(ndp->ni_dvp);
+       ip = VTOI(vp);
+       dp = VTOI(dvp);

        /*
         * No rmdir "." please.
         */
        if (dp == ip) {
        /*
         * No rmdir "." please.
         */
        if (dp == ip) {

-               vrele(ITOV(dp));
-               iput(ip);
+               vrele(dvp);
+               vput(vp);

                return (EINVAL);
        }
        /*
                return (EINVAL);
        }
        /*


@@ -1285,22 +1398,28 @@ ufs_rmdir(ndp)
         *  the current directory and thus be
         *  non-empty.)
         */
         *  the current directory and thus be
         *  non-empty.)
         */

-       if (ip->i_nlink != 2 || !dirempty(ip, dp->i_number, ndp->ni_cred)) {
+       error = 0;
+       if (ip->i_nlink != 2 ||
+           !ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {

                error = ENOTEMPTY;
                goto out;
        }
                error = ENOTEMPTY;
                goto out;
        }

+       if ((dp->i_flags & APPEND) || (ip->i_flags & (IMMUTABLE | APPEND))) {
+               error = EPERM;
+               goto out;
+       }

        /*
         * Delete reference to directory before purging
         * inode.  If we crash in between, the directory
         * will be reattached to lost+found,
         */
        /*
         * Delete reference to directory before purging
         * inode.  If we crash in between, the directory
         * will be reattached to lost+found,
         */

-       if (error = dirremove(ndp))
+       if (error = ufs_dirremove(dvp, cnp))

                goto out;
        dp->i_nlink--;
        dp->i_flag |= ICHG;
                goto out;
        dp->i_nlink--;
        dp->i_flag |= ICHG;

-       cache_purge(ITOV(dp));
-       iput(dp);
-       ndp->ni_dvp = NULL;
+       cache_purge(dvp);
+       vput(dvp);
+       dvp = NULL;

        /*
         * Truncate inode.  The only stuff left
         * in the directory is "." and "..".  The
        /*
         * Truncate inode.  The only stuff left
         * in the directory is "." and "..".  The


@@ -1313,44 +1432,69 @@ ufs_rmdir(ndp)
         * worry about them later.
         */
        ip->i_nlink -= 2;
         * worry about them later.
         */
        ip->i_nlink -= 2;

-       error = itrunc(ip, (u_long)0, IO_SYNC);
+       error = VOP_TRUNCATE(vp, (off_t)0, IO_SYNC, cnp->cn_cred,
+           cnp->cn_proc);

        cache_purge(ITOV(ip));
 out:
        cache_purge(ITOV(ip));
 out:

-       if (ndp->ni_dvp)
-               iput(dp);
-       iput(ip);
+       if (dvp)
+               vput(dvp);
+       vput(vp);

        return (error);
 }
 
 /*
  * symlink -- make a symbolic link
  */
        return (error);
 }
 
 /*
  * symlink -- make a symbolic link
  */

-ufs_symlink(ndp, vap, target)
-       struct nameidata *ndp;
-       struct vattr *vap;
-       char *target;
+int
+ufs_symlink(ap)
+       struct vop_symlink_args /* {
+               struct vnode *a_dvp;
+               struct vnode **a_vpp;
+               struct componentname *a_cnp;
+               struct vattr *a_vap;
+               char *a_target;
+       } */ *ap;

 {
 {

-       struct inode *ip;
-       int error;
+       register struct vnode *vp, **vpp = ap->a_vpp;
+       register struct inode *ip;
+       int len, error;

 
 

-       error = maknode(IFLNK | vap->va_mode, ndp, &ip);
-       if (error)
+       if (error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
+           vpp, ap->a_cnp))

                return (error);
                return (error);

-       error = vn_rdwr(UIO_WRITE, ITOV(ip), target, strlen(target), (off_t)0,
-               UIO_SYSSPACE, IO_NODELOCKED, ndp->ni_cred, (int *)0);
-       iput(ip);
+       vp = *vpp;
+       len = strlen(ap->a_target);
+       if (len < vp->v_mount->mnt_maxsymlinklen) {
+               ip = VTOI(vp);
+               bcopy(ap->a_target, (char *)ip->i_shortlink, len);
+               ip->i_size = len;
+               ip->i_flag |= IUPD|ICHG;
+       } else
+               error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
+                   UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred, (int *)0,
+                   (struct proc *)0);
+       vput(vp);

        return (error);
 }
 
 /*
        return (error);
 }
 
 /*

- * Vnode op for read and write
+ * Vnode op for reading directories.
+ * 
+ * The routine below assumes that the on-disk format of a directory
+ * is the same as that defined by <sys/dirent.h>. If the on-disk
+ * format changes, then it will be necessary to do a conversion
+ * from the on-disk format that read returns to the format defined
+ * by <sys/dirent.h>.

  */
  */

-ufs_readdir(vp, uio, cred, eofflagp)
-       struct vnode *vp;
-       register struct uio *uio;
-       struct ucred *cred;
-       int *eofflagp;
+int
+ufs_readdir(ap)
+       struct vop_readdir_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 {

+       register struct uio *uio = ap->a_uio;

        int count, lost, error;
 
        count = uio->uio_resid;
        int count, lost, error;
 
        count = uio->uio_resid;


@@ -1360,124 +1504,214 @@ ufs_readdir(vp, uio, cred, eofflagp)
                return (EINVAL);
        uio->uio_resid = count;
        uio->uio_iov->iov_len = count;
                return (EINVAL);
        uio->uio_resid = count;
        uio->uio_iov->iov_len = count;

-       error = ufs_read(vp, uio, 0, cred);
+#      if (BYTE_ORDER == LITTLE_ENDIAN)
+               if (ap->a_vp->v_mount->mnt_maxsymlinklen > 0) {
+                       error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
+               } else {
+                       struct dirent *dp, *edp;
+                       struct uio auio;
+                       struct iovec aiov;
+                       caddr_t dirbuf;
+                       int readcnt;
+                       u_char tmp;
+
+                       auio = *uio;
+                       auio.uio_iov = &aiov;
+                       auio.uio_iovcnt = 1;
+                       auio.uio_segflg = UIO_SYSSPACE;
+                       aiov.iov_len = count;
+                       MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
+                       aiov.iov_base = dirbuf;
+                       error = VOP_READ(ap->a_vp, &auio, 0, ap->a_cred);
+                       if (error == 0) {
+                               readcnt = count - auio.uio_resid;
+                               edp = (struct dirent *)&dirbuf[readcnt];
+                               for (dp = (struct dirent *)dirbuf; dp < edp; ) {
+                                       tmp = dp->d_namlen;
+                                       dp->d_namlen = dp->d_type;
+                                       dp->d_type = tmp;
+                                       if (dp->d_reclen > 0) {
+                                               dp = (struct dirent *)
+                                                   ((char *)dp + dp->d_reclen);
+                                       } else {
+                                               error = EIO;
+                                               break;
+                                       }
+                               }
+                               if (dp >= edp)
+                                       error = uiomove(dirbuf, readcnt, uio);
+                       }
+                       FREE(dirbuf, M_TEMP);
+               }
+#      else
+               error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
+#      endif

        uio->uio_resid += lost;
        uio->uio_resid += lost;

-       if ((VTOI(vp)->i_size - uio->uio_offset) <= 0)
-               *eofflagp = 1;
-       else
-               *eofflagp = 0;

        return (error);
 }
 
 /*
  * Return target name of a symbolic link
  */
        return (error);
 }
 
 /*
  * Return target name of a symbolic link
  */

-ufs_readlink(vp, uiop, cred)
-       struct vnode *vp;
-       struct uio *uiop;
-       struct ucred *cred;
+int
+ufs_readlink(ap)
+       struct vop_readlink_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;
+       register struct inode *ip = VTOI(vp);
+       int isize;

 
 

-       return (ufs_read(vp, uiop, 0, cred));
+       isize = ip->i_size;
+       if (isize < vp->v_mount->mnt_maxsymlinklen) {
+               uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
+               return (0);
+       }
+       return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));

 }
 
 /*
  * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
 }
 
 /*
  * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually

- * done. Iff ni_vp/ni_dvp not null and locked, unlock.
+ * done. If a buffer has been saved in anticipation of a CREATE, delete it.

  */
  */

-ufs_abortop(ndp)
-       register struct nameidata *ndp;
+/* ARGSUSED */
+int
+ufs_abortop(ap)
+       struct vop_abortop_args /* {
+               struct vnode *a_dvp;
+               struct componentname *a_cnp;
+       } */ *ap;

 {
 {

-
-       if (ndp->ni_dvp) {
-               if (VOP_ISLOCKED(ndp->ni_dvp))
-                       VOP_UNLOCK(ndp->ni_dvp);
-               vrele(ndp->ni_dvp);
-       }
-       if (ndp->ni_vp) {
-               if (VOP_ISLOCKED(ndp->ni_vp))
-                       VOP_UNLOCK(ndp->ni_vp);
-               vrele(ndp->ni_vp);
-       }
-       return;
+       if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
+               FREE(ap->a_cnp->cn_pnbuf, M_NAMEI);
+       return (0);

 }
 
 /*
 }
 
 /*

- * Lock an inode.
+ * Lock an inode. If its already locked, set the WANT bit and sleep.

  */
  */

-ufs_lock(vp)
-       struct vnode *vp;
+int
+ufs_lock(ap)
+       struct vop_lock_args /* {
+               struct vnode *a_vp;
+       } */ *ap;

 {
 {

-       register struct inode *ip = VTOI(vp);
+       register struct vnode *vp = ap->a_vp;
+       register struct inode *ip;
+       struct proc *p = curproc;       /* XXX */

 
 

-       ILOCK(ip);
+start:
+       while (vp->v_flag & VXLOCK) {
+               vp->v_flag |= VXWANT;
+               sleep((caddr_t)vp, PINOD);
+       }
+       if (vp->v_tag == VT_NON)
+               return (ENOENT);
+       ip = VTOI(vp);
+       if (ip->i_flag & ILOCKED) {
+               ip->i_flag |= IWANT;
+#ifdef DIAGNOSTIC
+               if (p) {
+                       if (p->p_pid == ip->i_lockholder)
+                               panic("locking against myself");
+                       ip->i_lockwaiter = p->p_pid;
+               } else
+                       ip->i_lockwaiter = -1;
+#endif
+               (void) sleep((caddr_t)ip, PINOD);
+               goto start;
+       }
+#ifdef DIAGNOSTIC
+       ip->i_lockwaiter = 0;
+       if (ip->i_lockholder != 0)
+               panic("lockholder (%d) != 0", ip->i_lockholder);
+       if (p && p->p_pid == 0)
+               printf("locking by process 0\n");
+       if (p)
+               ip->i_lockholder = p->p_pid;
+       else
+               ip->i_lockholder = -1;
+#endif
+       ip->i_flag |= ILOCKED;

        return (0);
 }
 
 /*
        return (0);
 }
 
 /*

- * Unlock an inode.
+ * Unlock an inode.  If WANT bit is on, wakeup.

  */
  */

-ufs_unlock(vp)
-       struct vnode *vp;
+int lockcount = 90;
+int
+ufs_unlock(ap)
+       struct vop_unlock_args /* {
+               struct vnode *a_vp;
+       } */ *ap;

 {
 {

-       register struct inode *ip = VTOI(vp);
+       register struct inode *ip = VTOI(ap->a_vp);
+       struct proc *p = curproc;       /* XXX */

 
 

-       if (!(ip->i_flag & ILOCKED))
+#ifdef DIAGNOSTIC
+       if ((ip->i_flag & ILOCKED) == 0) {
+               vprint("ufs_unlock: unlocked inode", ap->a_vp);

                panic("ufs_unlock NOT LOCKED");
                panic("ufs_unlock NOT LOCKED");

-       IUNLOCK(ip);
+       }
+       if (p && p->p_pid != ip->i_lockholder && p->p_pid > -1 &&
+           ip->i_lockholder > -1 && lockcount++ < 100)
+               panic("unlocker (%d) != lock holder (%d)",
+                   p->p_pid, ip->i_lockholder);
+       ip->i_lockholder = 0;
+#endif
+       ip->i_flag &= ~ILOCKED;
+       if (ip->i_flag & IWANT) {
+               ip->i_flag &= ~IWANT;
+               wakeup((caddr_t)ip);
+       }

        return (0);
 }
 
 /*
  * Check for a locked inode.
  */
        return (0);
 }
 
 /*
  * Check for a locked inode.
  */

-ufs_islocked(vp)
-       struct vnode *vp;
+int
+ufs_islocked(ap)
+       struct vop_islocked_args /* {
+               struct vnode *a_vp;
+       } */ *ap;

 {
 
 {
 

-       if (VTOI(vp)->i_flag & ILOCKED)
+       if (VTOI(ap->a_vp)->i_flag & ILOCKED)

                return (1);
        return (0);
 }
 
 /*
                return (1);
        return (0);
 }
 
 /*

- * Get access to bmap
+ * Calculate the logical to physical mapping if not done already,
+ * then call the device strategy routine.

  */
  */

-ufs_bmap(vp, bn, vpp, bnp)
-       struct vnode *vp;
-       daddr_t bn;
-       struct vnode **vpp;
-       daddr_t *bnp;
+int
+ufs_strategy(ap)
+       struct vop_strategy_args /* {
+               struct buf *a_bp;
+       } */ *ap;

 {
 {

-       struct inode *ip = VTOI(vp);
-
-       if (vpp != NULL)
-               *vpp = ip->i_devvp;
-       if (bnp == NULL)
-               return (0);
-       return (bmap(ip, bn, bnp, (daddr_t *)0, (int *)0));
-}
-
-/*
- * Just call the device strategy routine
- */
-int checkoverlap = 1;
-
-ufs_strategy(bp)
-       register struct buf *bp;
-{
-       register struct inode *ip = VTOI(bp->b_vp);
-       register struct buf *ep;
-       struct vnode *vp;
-       struct buf *ebp;
-       daddr_t start, last;
+       register struct buf *bp = ap->a_bp;
+       register struct vnode *vp = bp->b_vp;
+       register struct inode *ip;

        int error;
 
        int error;
 

-       if (bp->b_vp->v_type == VBLK || bp->b_vp->v_type == VCHR)
+       ip = VTOI(vp);
+       if (vp->v_type == VBLK || vp->v_type == VCHR)

                panic("ufs_strategy: spec");
        if (bp->b_blkno == bp->b_lblkno) {
                panic("ufs_strategy: spec");
        if (bp->b_blkno == bp->b_lblkno) {

-               if (error = bmap(ip, bp->b_lblkno, &bp->b_blkno))
+               if (error =
+                   VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL)) {
+                       bp->b_error = error;
+                       bp->b_flags |= B_ERROR;
+                       biodone(bp);

                        return (error);
                        return (error);

+               }

                if ((long)bp->b_blkno == -1)
                        clrbuf(bp);
        }
                if ((long)bp->b_blkno == -1)
                        clrbuf(bp);
        }


@@ -1485,40 +1719,22 @@ ufs_strategy(bp)
                biodone(bp);
                return (0);
        }
                biodone(bp);
                return (0);
        }

-       if (checkoverlap) {
-               ebp = &buf[nbuf];
-               start = bp->b_blkno;
-               last = start + btodb(bp->b_bcount) - 1;
-               for (ep = buf; ep < ebp; ep++) {
-                       if (ep == bp || (ep->b_flags & B_INVAL) ||
-                           ep->b_vp == NULLVP)
-                               continue;
-                       if (VOP_BMAP(ep->b_vp, (daddr_t)0, &vp, (daddr_t)0))
-                               continue;
-                       if (vp != ip->i_devvp)
-                               continue;
-                       /* look for overlap */
-                       if (ep->b_bcount == 0 || ep->b_blkno > last ||
-                           ep->b_blkno + btodb(ep->b_bcount) <= start)
-                               continue;
-                       vprint("Disk overlap", vp);
-                       printf("\tstart %d, end %d overlap start %d, end %d\n",
-                               start, last, ep->b_blkno,
-                               ep->b_blkno + btodb(ep->b_bcount) - 1);
-               }
-       }

        vp = ip->i_devvp;
        bp->b_dev = vp->v_rdev;
        vp = ip->i_devvp;
        bp->b_dev = vp->v_rdev;

-       (*(vp->v_op->vn_strategy))(bp);
+       VOCALL (vp->v_op, VOFFSET(vop_strategy), ap);

        return (0);
 }
 
 /*
  * Print out the contents of an inode.
  */
        return (0);
 }
 
 /*
  * Print out the contents of an inode.
  */

-ufs_print(vp)
-       struct vnode *vp;
+int
+ufs_print(ap)
+       struct vop_print_args /* {
+               struct vnode *a_vp;
+       } */ *ap;

 {
 {

+       register struct vnode *vp = ap->a_vp;

        register struct inode *ip = VTOI(vp);
 
        printf("tag VT_UFS, ino %d, on dev %d, %d", ip->i_number,
        register struct inode *ip = VTOI(vp);
 
        printf("tag VT_UFS, ino %d, on dev %d, %d", ip->i_number,


@@ -1528,46 +1744,53 @@ ufs_print(vp)
                fifo_printinfo(vp);
 #endif /* FIFO */
        printf("%s\n", (ip->i_flag & ILOCKED) ? " (LOCKED)" : "");
                fifo_printinfo(vp);
 #endif /* FIFO */
        printf("%s\n", (ip->i_flag & ILOCKED) ? " (LOCKED)" : "");

-       if (ip->i_spare0 == 0)
-               return;
-       printf("\towner pid %d", ip->i_spare0);
-       if (ip->i_spare1)
-               printf(" waiting pid %d", ip->i_spare1);
+       if (ip->i_lockholder == 0)
+               return (0);
+       printf("\towner pid %d", ip->i_lockholder);
+       if (ip->i_lockwaiter)
+               printf(" waiting pid %d", ip->i_lockwaiter);

        printf("\n");
        printf("\n");

+       return (0);

 }
 
 /*
  * Read wrapper for special devices.
  */
 }
 
 /*
  * Read wrapper for special devices.
  */

-ufsspec_read(vp, uio, ioflag, cred)
-       struct vnode *vp;
-       struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
+int
+ufsspec_read(ap)
+       struct vop_read_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               int  a_ioflag;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 
        /*
         * Set access flag.
         */
 {
 
        /*
         * Set access flag.
         */

-       VTOI(vp)->i_flag |= IACC;
-       return (spec_read(vp, uio, ioflag, cred));
+       VTOI(ap->a_vp)->i_flag |= IACC;
+       return (VOCALL (spec_vnodeop_p, VOFFSET(vop_read), ap));

 }
 
 /*
  * Write wrapper for special devices.
  */
 }
 
 /*
  * Write wrapper for special devices.
  */

-ufsspec_write(vp, uio, ioflag, cred)
-       struct vnode *vp;
-       struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
+int
+ufsspec_write(ap)
+       struct vop_write_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               int  a_ioflag;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 
        /*
         * Set update and change flags.
         */
 {
 
        /*
         * Set update and change flags.
         */

-       VTOI(vp)->i_flag |= IUPD|ICHG;
-       return (spec_write(vp, uio, ioflag, cred));
+       VTOI(ap->a_vp)->i_flag |= IUPD|ICHG;
+       return (VOCALL (spec_vnodeop_p, VOFFSET(vop_write), ap));

 }
 
 /*
 }
 
 /*


@@ -1575,51 +1798,63 @@ ufsspec_write(vp, uio, ioflag, cred)
  *
  * Update the times on the inode then do device close.
  */
  *
  * Update the times on the inode then do device close.
  */

-ufsspec_close(vp, fflag, cred)
-       struct vnode *vp;
-       int fflag;
-       struct ucred *cred;
+int
+ufsspec_close(ap)
+       struct vop_close_args /* {
+               struct vnode *a_vp;
+               int  a_fflag;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

-       register struct inode *ip = VTOI(vp);
+       register struct inode *ip = VTOI(ap->a_vp);

 
 

-       if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
+       if (ap->a_vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))

                ITIMES(ip, &time, &time);
                ITIMES(ip, &time, &time);

-       return (spec_close(vp, fflag, cred));
+       return (VOCALL (spec_vnodeop_p, VOFFSET(vop_close), ap));

 }
 
 #ifdef FIFO
 /*
  * Read wrapper for fifo's
  */
 }
 
 #ifdef FIFO
 /*
  * Read wrapper for fifo's
  */

-ufsfifo_read(vp, uio, ioflag, cred)
-       struct vnode *vp;
-       struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
+int
+ufsfifo_read(ap)
+       struct vop_read_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               int  a_ioflag;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 {

+       extern int (**fifo_vnodeop_p)();

 
        /*
         * Set access flag.
         */
 
        /*
         * Set access flag.
         */

-       VTOI(vp)->i_flag |= IACC;
-       return (fifo_read(vp, uio, ioflag, cred));
+       VTOI(ap->a_vp)->i_flag |= IACC;
+       return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_read), ap));

 }
 
 /*
  * Write wrapper for fifo's.
  */
 }
 
 /*
  * Write wrapper for fifo's.
  */

-ufsfifo_write(vp, uio, ioflag, cred)
-       struct vnode *vp;
-       struct uio *uio;
-       int ioflag;
-       struct ucred *cred;
+int
+ufsfifo_write(ap)
+       struct vop_write_args /* {
+               struct vnode *a_vp;
+               struct uio *a_uio;
+               int  a_ioflag;
+               struct ucred *a_cred;
+       } */ *ap;

 {
 {

+       extern int (**fifo_vnodeop_p)();

 
        /*
         * Set update and change flags.
         */
 
        /*
         * Set update and change flags.
         */

-       VTOI(vp)->i_flag |= IUPD|ICHG;
-       return (fifo_write(vp, uio, ioflag, cred));
+       VTOI(ap->a_vp)->i_flag |= IUPD|ICHG;
+       return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_write), ap));

 }
 
 /*
 }
 
 /*


@@ -1627,74 +1862,273 @@ ufsfifo_write(vp, uio, ioflag, cred)
  *
  * Update the times on the inode then do device close.
  */
  *
  * Update the times on the inode then do device close.
  */

-ufsfifo_close(vp, fflag, cred)
-       struct vnode *vp;
-       int fflag;
-       struct ucred *cred;
+ufsfifo_close(ap)
+       struct vop_close_args /* {
+               struct vnode *a_vp;
+               int  a_fflag;
+               struct ucred *a_cred;
+               struct proc *a_p;
+       } */ *ap;

 {
 {

-       register struct inode *ip = VTOI(vp);
+       extern int (**fifo_vnodeop_p)();
+       register struct inode *ip = VTOI(ap->a_vp);

 
 

-       if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
+       if (ap->a_vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))

                ITIMES(ip, &time, &time);
                ITIMES(ip, &time, &time);

-       return (fifo_close(vp, fflag, cred));
+       return (VOCALL (fifo_vnodeop_p, VOFFSET(vop_close), ap));

 }
 #endif /* FIFO */
 
 /*
 }
 #endif /* FIFO */
 
 /*

- * Make a new file.
+ * Return POSIX pathconf information applicable to ufs filesystems.
+ */
+ufs_pathconf(ap)
+       struct vop_pathconf_args /* {
+               struct vnode *a_vp;
+               int a_name;
+               int *a_retval;
+       } */ *ap;
+{
+
+       switch (ap->a_name) {
+       case _PC_LINK_MAX:
+               *ap->a_retval = LINK_MAX;
+               return (0);
+       case _PC_NAME_MAX:
+               *ap->a_retval = NAME_MAX;
+               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 */
+}
+
+/*
+ * Advisory record locking support
+ */
+int
+ufs_advlock(ap)
+       struct vop_advlock_args /* {
+               struct vnode *a_vp;
+               caddr_t  a_id;
+               int  a_op;
+               struct flock *a_fl;
+               int  a_flags;
+       } */ *ap;
+{
+       register struct inode *ip = VTOI(ap->a_vp);
+       register struct flock *fl = ap->a_fl;
+       register struct lockf *lock;
+       off_t start, end;
+       int error;
+
+       /*
+        * Avoid the common case of unlocking when inode has no locks.
+        */
+       if (ip->i_lockf == (struct lockf *)0) {
+               if (ap->a_op != F_SETLK) {
+                       fl->l_type = F_UNLCK;
+                       return (0);
+               }
+       }
+       /*
+        * Convert the flock structure into a start and end.
+        */
+       switch (fl->l_whence) {
+
+       case SEEK_SET:
+       case SEEK_CUR:
+               /*
+                * Caller is responsible for adding any necessary offset
+                * when SEEK_CUR is used.
+                */
+               start = fl->l_start;
+               break;
+
+       case SEEK_END:
+               start = ip->i_size + fl->l_start;
+               break;
+
+       default:
+               return (EINVAL);
+       }
+       if (start < 0)
+               return (EINVAL);
+       if (fl->l_len == 0)
+               end = -1;
+       else
+               end = start + fl->l_len - 1;
+       /*
+        * Create the lockf structure
+        */
+       MALLOC(lock, struct lockf *, sizeof *lock, M_LOCKF, M_WAITOK);
+       lock->lf_start = start;
+       lock->lf_end = end;
+       lock->lf_id = ap->a_id;
+       lock->lf_inode = ip;
+       lock->lf_type = fl->l_type;
+       lock->lf_next = (struct lockf *)0;
+       lock->lf_block = (struct lockf *)0;
+       lock->lf_flags = ap->a_flags;
+       /*
+        * Do the requested operation.
+        */
+       switch(ap->a_op) {
+       case F_SETLK:
+               return (lf_setlock(lock));
+
+       case F_UNLCK:
+               error = lf_clearlock(lock);
+               FREE(lock, M_LOCKF);
+               return (error);
+
+       case F_GETLK:
+               error = lf_getlock(lock, fl);
+               FREE(lock, M_LOCKF);
+               return (error);
+       
+       default:
+               free(lock, M_LOCKF);
+               return (EINVAL);
+       }
+       /* NOTREACHED */
+}
+
+/*
+ * Initialize the vnode associated with a new inode, handle aliased
+ * vnodes.

  */
  */

-maknode(mode, ndp, ipp)
+int
+ufs_vinit(mntp, specops, fifoops, vpp)
+       struct mount *mntp;
+       int (**specops)();
+       int (**fifoops)();
+       struct vnode **vpp;
+{
+       struct inode *ip;
+       struct vnode *vp, *nvp;
+
+       vp = *vpp;
+       ip = VTOI(vp);
+       switch(vp->v_type = IFTOVT(ip->i_mode)) {
+       case VCHR:
+       case VBLK:
+               vp->v_op = specops;
+               if (nvp = checkalias(vp, ip->i_rdev, mntp)) {
+                       /*
+                        * Discard unneeded vnode, but save its inode.
+                        */
+                       ufs_ihashrem(ip);
+                       VOP_UNLOCK(vp);
+                       nvp->v_data = vp->v_data;
+                       vp->v_data = NULL;
+                       vp->v_op = spec_vnodeop_p;
+                       vrele(vp);
+                       vgone(vp);
+                       /*
+                        * Reinitialize aliased inode.
+                        */
+                       vp = nvp;
+                       ip->i_vnode = vp;
+                       ufs_ihashins(ip);
+               }
+               break;
+       case VFIFO:
+#ifdef FIFO
+               vp->v_op = fifoops;
+               break;
+#else
+               return (EOPNOTSUPP);
+#endif
+       }
+       if (ip->i_number == ROOTINO)
+                vp->v_flag |= VROOT;
+       /*
+        * Initialize modrev times
+        */
+       SETHIGH(ip->i_modrev, mono_time.tv_sec);
+       SETLOW(ip->i_modrev, mono_time.tv_usec * 4294);
+       *vpp = vp;
+       return (0);
+}
+
+/*
+ * Allocate a new inode.
+ */
+int
+ufs_makeinode(mode, dvp, vpp, cnp)

        int mode;
        int mode;

-       register struct nameidata *ndp;
-       struct inode **ipp;
+       struct vnode *dvp;
+       struct vnode **vpp;
+       struct componentname *cnp;

 {
 {

-       register struct inode *ip;
-       struct inode *tip;
-       register struct inode *pdir = VTOI(ndp->ni_dvp);
-       ino_t ipref;
+       register struct inode *ip, *pdir;
+       struct timeval tv;
+       struct vnode *tvp;

        int error;
 
        int error;
 

-       *ipp = 0;
+       pdir = VTOI(dvp);
+#ifdef DIAGNOSTIC
+       if ((cnp->cn_flags & HASBUF) == 0)
+               panic("ufs_makeinode: no name");
+#endif
+       *vpp = NULL;

        if ((mode & IFMT) == 0)
                mode |= IFREG;
        if ((mode & IFMT) == 0)
                mode |= IFREG;

-       if ((mode & IFMT) == IFDIR)
-               ipref = dirpref(pdir->i_fs);
-       else
-               ipref = pdir->i_number;
-       if (error = ialloc(pdir, ipref, mode, ndp->ni_cred, &tip)) {
-               iput(pdir);
+
+       if (error = VOP_VALLOC(dvp, mode, cnp->cn_cred, &tvp)) {
+               free(cnp->cn_pnbuf, M_NAMEI);
+               vput(dvp);

                return (error);
        }
                return (error);
        }

-       ip = tip;
-       ip->i_uid = ndp->ni_cred->cr_uid;
+       ip = VTOI(tvp);

        ip->i_gid = pdir->i_gid;
        ip->i_gid = pdir->i_gid;

+       if ((mode & IFMT) == IFLNK)
+               ip->i_uid = pdir->i_uid;
+       else
+               ip->i_uid = cnp->cn_cred->cr_uid;

 #ifdef QUOTA
        if ((error = getinoquota(ip)) ||
 #ifdef QUOTA
        if ((error = getinoquota(ip)) ||

-           (error = chkiq(ip, 1, ndp->ni_cred, 0))) {
-               ifree(ip, ip->i_number, mode);
-               iput(ip);
-               iput(pdir);
+           (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
+               free(cnp->cn_pnbuf, M_NAMEI);
+               VOP_VFREE(tvp, ip->i_number, mode);
+               vput(tvp);
+               vput(dvp);

                return (error);
        }
 #endif
        ip->i_flag |= IACC|IUPD|ICHG;
        ip->i_mode = mode;
                return (error);
        }
 #endif
        ip->i_flag |= IACC|IUPD|ICHG;
        ip->i_mode = mode;

-       ITOV(ip)->v_type = IFTOVT(mode);        /* Rest init'd in iget() */
+       tvp->v_type = IFTOVT(mode);     /* Rest init'd in iget() */

        ip->i_nlink = 1;
        ip->i_nlink = 1;

-       if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, ndp->ni_cred) &&
-           suser(ndp->ni_cred, NULL))
+       if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
+           suser(cnp->cn_cred, NULL))

                ip->i_mode &= ~ISGID;
 
        /*
         * Make sure inode goes to disk before directory entry.
         */
                ip->i_mode &= ~ISGID;
 
        /*
         * Make sure inode goes to disk before directory entry.
         */

-       if (error = iupdat(ip, &time, &time, 1))
+       tv = time;
+       if (error = VOP_UPDATE(tvp, &tv, &tv, 1))

                goto bad;
                goto bad;

-       if (error = direnter(ip, ndp)) {
-               pdir = NULL;
+       if (error = ufs_direnter(ip, dvp, cnp))

                goto bad;
                goto bad;

-       }
-       *ipp = ip;
+       if ((cnp->cn_flags & SAVESTART) == 0)
+               FREE(cnp->cn_pnbuf, M_NAMEI);
+       vput(dvp);
+       *vpp = tvp;

        return (0);
 
 bad:
        return (0);
 
 bad:


@@ -1702,10 +2136,10 @@ bad:
         * Write error occurred trying to update the inode
         * or the directory so must deallocate the inode.
         */
         * Write error occurred trying to update the inode
         * or the directory so must deallocate the inode.
         */

-       if (pdir)
-               iput(pdir);
+       free(cnp->cn_pnbuf, M_NAMEI);
+       vput(dvp);

        ip->i_nlink = 0;
        ip->i_flag |= ICHG;
        ip->i_nlink = 0;
        ip->i_flag |= ICHG;

-       iput(ip);
+       vput(tvp);

        return (error);
 }
        return (error);
 }