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-rw-r--r--sys/miscfs/umapfs/umap_vfsops.c454
1 files changed, 0 insertions, 454 deletions
diff --git a/sys/miscfs/umapfs/umap_vfsops.c b/sys/miscfs/umapfs/umap_vfsops.c
deleted file mode 100644
index 280ded9..0000000
--- a/sys/miscfs/umapfs/umap_vfsops.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*
- * Copyright (c) 1992, 1993, 1995
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software donated to Berkeley by
- * the UCLA Ficus project.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)umap_vfsops.c 8.8 (Berkeley) 5/14/95
- *
- * $FreeBSD$
- */
-
-/*
- * Umap Layer
- * (See mount_umap(8) for a description of this layer.)
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/malloc.h>
-#include <sys/mount.h>
-#include <sys/mutex.h>
-#include <sys/namei.h>
-#include <sys/vnode.h>
-
-#include <miscfs/umapfs/umap.h>
-
-static MALLOC_DEFINE(M_UMAPFSMNT, "UMAP mount", "UMAP mount structure");
-
-static int umapfs_fhtovp __P((struct mount *mp, struct fid *fidp,
- struct vnode **vpp));
-static int umapfs_checkexp __P((struct mount *mp, struct sockaddr *nam,
- int *extflagsp, struct ucred **credanonp));
-static int umapfs_mount __P((struct mount *mp, char *path, caddr_t data,
- struct nameidata *ndp, struct proc *p));
-static int umapfs_quotactl __P((struct mount *mp, int cmd, uid_t uid,
- caddr_t arg, struct proc *p));
-static int umapfs_root __P((struct mount *mp, struct vnode **vpp));
-static int umapfs_start __P((struct mount *mp, int flags, struct proc *p));
-static int umapfs_statfs __P((struct mount *mp, struct statfs *sbp,
- struct proc *p));
-static int umapfs_sync __P((struct mount *mp, int waitfor,
- struct ucred *cred, struct proc *p));
-static int umapfs_unmount __P((struct mount *mp, int mntflags,
- struct proc *p));
-static int umapfs_vget __P((struct mount *mp, ino_t ino,
- struct vnode **vpp));
-static int umapfs_vptofh __P((struct vnode *vp, struct fid *fhp));
-static int umapfs_extattrctl __P((struct mount *mp, int cmd,
- struct vnode *filename_vp,
- int namespace, const char *attrname,
- struct proc *p));
-
-/*
- * Mount umap layer
- */
-static int
-umapfs_mount(mp, path, data, ndp, p)
- struct mount *mp;
- char *path;
- caddr_t data;
- struct nameidata *ndp;
- struct proc *p;
-{
- struct umap_args args;
- struct vnode *lowerrootvp, *vp;
- struct vnode *umapm_rootvp;
- struct umap_mount *amp;
- u_int size;
- int error;
-#ifdef DEBUG
- int i;
-#endif
-
- /*
- * Only for root
- */
- if ((error = suser(p)) != 0)
- return (error);
-
-#ifdef DEBUG
- printf("umapfs_mount(mp = %p)\n", (void *)mp);
-#endif
-
- /*
- * Update is a no-op
- */
- if (mp->mnt_flag & MNT_UPDATE) {
- return (EOPNOTSUPP);
- /* return (VFS_MOUNT(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, path, data, ndp, p));*/
- }
-
- /*
- * Get argument
- */
- error = copyin(data, (caddr_t)&args, sizeof(struct umap_args));
- if (error)
- return (error);
-
- /*
- * Find lower node
- */
- NDINIT(ndp, LOOKUP, FOLLOW|WANTPARENT|LOCKLEAF,
- UIO_USERSPACE, args.target, p);
- error = namei(ndp);
- if (error)
- return (error);
- NDFREE(ndp, NDF_ONLY_PNBUF);
-
- /*
- * Sanity check on lower vnode
- */
- lowerrootvp = ndp->ni_vp;
-#ifdef DEBUG
- printf("vp = %p, check for VDIR...\n", (void *)lowerrootvp);
-#endif
- vrele(ndp->ni_dvp);
- ndp->ni_dvp = 0;
-
- if (lowerrootvp->v_type != VDIR) {
- vput(lowerrootvp);
- return (EINVAL);
- }
-
-#ifdef DEBUG
- printf("mp = %p\n", (void *)mp);
-#endif
-
- amp = (struct umap_mount *) malloc(sizeof(struct umap_mount),
- M_UMAPFSMNT, M_WAITOK); /* XXX */
-
- /*
- * Save reference to underlying FS
- */
- amp->umapm_vfs = lowerrootvp->v_mount;
-
- /*
- * Now copy in the number of entries and maps for umap mapping.
- */
- amp->info_nentries = args.nentries;
- amp->info_gnentries = args.gnentries;
- error = copyin(args.mapdata, (caddr_t)amp->info_mapdata,
- 2*sizeof(u_long)*args.nentries);
- if (error)
- return (error);
-
-#ifdef DEBUG
- printf("umap_mount:nentries %d\n",args.nentries);
- for (i = 0; i < args.nentries; i++)
- printf(" %lu maps to %lu\n", amp->info_mapdata[i][0],
- amp->info_mapdata[i][1]);
-#endif
-
- error = copyin(args.gmapdata, (caddr_t)amp->info_gmapdata,
- 2*sizeof(u_long)*args.gnentries);
- if (error)
- return (error);
-
-#ifdef DEBUG
- printf("umap_mount:gnentries %d\n",args.gnentries);
- for (i = 0; i < args.gnentries; i++)
- printf(" group %lu maps to %lu\n",
- amp->info_gmapdata[i][0],
- amp->info_gmapdata[i][1]);
-#endif
-
-
- /*
- * Save reference. Each mount also holds
- * a reference on the root vnode.
- */
- error = umap_node_create(mp, lowerrootvp, &vp);
- /*
- * Unlock the node (either the lower or the alias)
- */
- VOP_UNLOCK(vp, 0, p);
- /*
- * Make sure the node alias worked
- */
- if (error) {
- vrele(lowerrootvp);
- free(amp, M_UMAPFSMNT); /* XXX */
- return (error);
- }
-
- /*
- * Keep a held reference to the root vnode.
- * It is vrele'd in umapfs_unmount.
- */
- umapm_rootvp = vp;
- umapm_rootvp->v_flag |= VROOT;
- amp->umapm_rootvp = umapm_rootvp;
- if (UMAPVPTOLOWERVP(umapm_rootvp)->v_mount->mnt_flag & MNT_LOCAL)
- mp->mnt_flag |= MNT_LOCAL;
- mp->mnt_data = (qaddr_t) amp;
- vfs_getnewfsid(mp);
-
- (void) copyinstr(args.target, mp->mnt_stat.f_mntfromname, MNAMELEN - 1,
- &size);
- bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
- (void)umapfs_statfs(mp, &mp->mnt_stat, p);
-#ifdef DEBUG
- printf("umapfs_mount: lower %s, alias at %s\n",
- mp->mnt_stat.f_mntfromname, mp->mnt_stat.f_mntonname);
-#endif
- return (0);
-}
-
-/*
- * VFS start. Nothing needed here - the start routine
- * on the underlying filesystem will have been called
- * when that filesystem was mounted.
- */
-static int
-umapfs_start(mp, flags, p)
- struct mount *mp;
- int flags;
- struct proc *p;
-{
- return (0);
- /* return (VFS_START(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, flags, p)); */
-}
-
-/*
- * Free reference to umap layer
- */
-static int
-umapfs_unmount(mp, mntflags, p)
- struct mount *mp;
- int mntflags;
- struct proc *p;
-{
- int error;
- int flags = 0;
-
-#ifdef DEBUG
- printf("umapfs_unmount(mp = %p)\n", (void *)mp);
-#endif
-
- if (mntflags & MNT_FORCE)
- flags |= FORCECLOSE;
-
- /*
- * Clear out buffer cache. I don't think we
- * ever get anything cached at this level at the
- * moment, but who knows...
- */
-#ifdef notyet
- mntflushbuf(mp, 0);
- if (mntinvalbuf(mp, 1))
- return (EBUSY);
-#endif
- /* There is 1 extra root vnode reference (umapm_rootvp). */
- error = vflush(mp, 1, flags);
- if (error)
- return (error);
-
- /*
- * Finally, throw away the umap_mount structure
- */
- free(mp->mnt_data, M_UMAPFSMNT); /* XXX */
- mp->mnt_data = 0;
- return (0);
-}
-
-static int
-umapfs_root(mp, vpp)
- struct mount *mp;
- struct vnode **vpp;
-{
- struct proc *p = curproc; /* XXX */
- struct vnode *vp;
-
-#ifdef DEBUG
- printf("umapfs_root(mp = %p, vp = %p->%p)\n",
- (void *)mp, (void *)MOUNTTOUMAPMOUNT(mp)->umapm_rootvp,
- (void *)UMAPVPTOLOWERVP(MOUNTTOUMAPMOUNT(mp)->umapm_rootvp));
-#endif
-
- /*
- * Return locked reference to root.
- */
- vp = MOUNTTOUMAPMOUNT(mp)->umapm_rootvp;
- VREF(vp);
- vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
- *vpp = vp;
- return (0);
-}
-
-static int
-umapfs_quotactl(mp, cmd, uid, arg, p)
- struct mount *mp;
- int cmd;
- uid_t uid;
- caddr_t arg;
- struct proc *p;
-{
- return (VFS_QUOTACTL(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, cmd, uid, arg, p));
-}
-
-static int
-umapfs_statfs(mp, sbp, p)
- struct mount *mp;
- struct statfs *sbp;
- struct proc *p;
-{
- int error;
- struct statfs mstat;
-
-#ifdef DEBUG
- printf("umapfs_statfs(mp = %p, vp = %p->%p)\n",
- (void *)mp, (void *)MOUNTTOUMAPMOUNT(mp)->umapm_rootvp,
- (void *)UMAPVPTOLOWERVP(MOUNTTOUMAPMOUNT(mp)->umapm_rootvp));
-#endif
-
- bzero(&mstat, sizeof(mstat));
-
- error = VFS_STATFS(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, &mstat, p);
- if (error)
- return (error);
-
- /* now copy across the "interesting" information and fake the rest */
- sbp->f_type = mstat.f_type;
- sbp->f_flags = mstat.f_flags;
- sbp->f_bsize = mstat.f_bsize;
- sbp->f_iosize = mstat.f_iosize;
- sbp->f_blocks = mstat.f_blocks;
- sbp->f_bfree = mstat.f_bfree;
- sbp->f_bavail = mstat.f_bavail;
- sbp->f_files = mstat.f_files;
- sbp->f_ffree = mstat.f_ffree;
- if (sbp != &mp->mnt_stat) {
- bcopy(&mp->mnt_stat.f_fsid, &sbp->f_fsid, sizeof(sbp->f_fsid));
- bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
- bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
- }
- return (0);
-}
-
-static int
-umapfs_sync(mp, waitfor, cred, p)
- struct mount *mp;
- int waitfor;
- struct ucred *cred;
- struct proc *p;
-{
- /*
- * XXX - Assumes no data cached at umap layer.
- */
- return (0);
-}
-
-static int
-umapfs_vget(mp, ino, vpp)
- struct mount *mp;
- ino_t ino;
- struct vnode **vpp;
-{
-
- return (VFS_VGET(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, ino, vpp));
-}
-
-static int
-umapfs_fhtovp(mp, fidp, vpp)
- struct mount *mp;
- struct fid *fidp;
- struct vnode **vpp;
-{
-
- return (VFS_FHTOVP(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, fidp, vpp));
-}
-
-static int
-umapfs_checkexp(mp, nam, exflagsp, credanonp)
- struct mount *mp;
- struct sockaddr *nam;
- int *exflagsp;
- struct ucred **credanonp;
-{
-
- return (VFS_CHECKEXP(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, nam,
- exflagsp, credanonp));
-}
-
-static int
-umapfs_vptofh(vp, fhp)
- struct vnode *vp;
- struct fid *fhp;
-{
- return (VFS_VPTOFH(UMAPVPTOLOWERVP(vp), fhp));
-}
-
-static int
-umapfs_extattrctl(mp, cmd, filename_vp, namespace, attrname, p)
- struct mount *mp;
- int cmd;
- struct vnode *filename_vp;
- int namespace;
- const char *attrname;
- struct proc *p;
-{
- return (VFS_EXTATTRCTL(MOUNTTOUMAPMOUNT(mp)->umapm_vfs, cmd,
- filename_vp, namespace, attrname, p));
-}
-
-
-static struct vfsops umap_vfsops = {
- umapfs_mount,
- umapfs_start,
- umapfs_unmount,
- umapfs_root,
- umapfs_quotactl,
- umapfs_statfs,
- umapfs_sync,
- umapfs_vget,
- umapfs_fhtovp,
- umapfs_checkexp,
- umapfs_vptofh,
- umapfs_init,
- vfs_stduninit,
- umapfs_extattrctl,
-};
-
-VFS_SET(umap_vfsops, umap, VFCF_LOOPBACK);
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