1291 lines
29 KiB
C
1291 lines
29 KiB
C
/*-
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* Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/namei.h>
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#include <sys/malloc.h>
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#include <sys/bio.h>
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#include <sys/buf.h>
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#include <sys/dirent.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/vm_page.h>
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#include <vm/vm_object.h>
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#include <vm/vm_pager.h>
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#include <vm/vnode_pager.h>
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#include <vm/vm_extern.h>
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#include <sys/unistd.h> /* for pathconf(2) constants */
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#include <fs/hpfs/hpfs.h>
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#include <fs/hpfs/hpfsmount.h>
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#include <fs/hpfs/hpfs_subr.h>
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#include <fs/hpfs/hpfs_ioctl.h>
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static int hpfs_de_uiomove(struct hpfsmount *, struct hpfsdirent *,
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struct uio *);
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static int hpfs_ioctl(struct vop_ioctl_args *ap);
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static int hpfs_read(struct vop_read_args *);
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static int hpfs_write(struct vop_write_args *ap);
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static int hpfs_getattr(struct vop_getattr_args *ap);
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static int hpfs_setattr(struct vop_setattr_args *ap);
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static int hpfs_inactive(struct vop_inactive_args *ap);
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static int hpfs_print(struct vop_print_args *ap);
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static int hpfs_reclaim(struct vop_reclaim_args *ap);
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static int hpfs_strategy(struct vop_strategy_args *ap);
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static int hpfs_access(struct vop_access_args *ap);
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static int hpfs_open(struct vop_open_args *ap);
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static int hpfs_close(struct vop_close_args *ap);
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static int hpfs_readdir(struct vop_readdir_args *ap);
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static int hpfs_lookup(struct vop_lookup_args *ap);
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static int hpfs_create(struct vop_create_args *);
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static int hpfs_remove(struct vop_remove_args *);
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static int hpfs_bmap(struct vop_bmap_args *ap);
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static int hpfs_fsync(struct vop_fsync_args *ap);
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static int hpfs_pathconf(struct vop_pathconf_args *ap);
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static int
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hpfs_fsync(ap)
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struct vop_fsync_args /* {
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struct vnode *a_vp;
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struct ucred *a_cred;
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int a_waitfor;
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struct thread *a_td;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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int s;
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struct buf *bp, *nbp;
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/*
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* Flush all dirty buffers associated with a vnode.
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*/
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loop:
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s = splbio();
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for (bp = TAILQ_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) {
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nbp = TAILQ_NEXT(bp, b_vnbufs);
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if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT))
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continue;
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if ((bp->b_flags & B_DELWRI) == 0)
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panic("hpfs_fsync: not dirty");
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bremfree(bp);
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splx(s);
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(void) bwrite(bp);
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goto loop;
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}
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while (vp->v_numoutput) {
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vp->v_flag |= VBWAIT;
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(void) tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "hpfsn", 0);
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}
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#ifdef DIAGNOSTIC
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if (!TAILQ_EMPTY(&vp->v_dirtyblkhd)) {
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vprint("hpfs_fsync: dirty", vp);
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goto loop;
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}
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#endif
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splx(s);
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/*
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* Write out the on-disc version of the vnode.
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*/
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return hpfs_update(VTOHP(vp));
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}
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static int
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hpfs_ioctl (
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struct vop_ioctl_args /* {
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struct vnode *a_vp;
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u_long a_command;
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caddr_t a_data;
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int a_fflag;
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struct ucred *a_cred;
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struct thread *a_td;
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} */ *ap)
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{
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register struct vnode *vp = ap->a_vp;
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register struct hpfsnode *hp = VTOHP(vp);
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int error;
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printf("hpfs_ioctl(0x%x, 0x%lx, 0x%p, 0x%x): ",
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hp->h_no, ap->a_command, ap->a_data, ap->a_fflag);
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switch (ap->a_command) {
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case HPFSIOCGEANUM: {
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u_long eanum;
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u_long passed;
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struct ea *eap;
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eanum = 0;
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if (hp->h_fn.fn_ealen > 0) {
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eap = (struct ea *)&(hp->h_fn.fn_int);
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passed = 0;
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while (passed < hp->h_fn.fn_ealen) {
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printf("EAname: %s\n", EA_NAME(eap));
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eanum++;
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passed += sizeof(struct ea) +
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eap->ea_namelen + 1 + eap->ea_vallen;
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eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
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passed);
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}
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error = 0;
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} else {
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error = ENOENT;
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}
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printf("%lu eas\n", eanum);
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*(u_long *)ap->a_data = eanum;
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break;
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}
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case HPFSIOCGEASZ: {
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u_long eanum;
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u_long passed;
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struct ea *eap;
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printf("EA%ld\n", *(u_long *)ap->a_data);
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eanum = 0;
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if (hp->h_fn.fn_ealen > 0) {
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eap = (struct ea *)&(hp->h_fn.fn_int);
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passed = 0;
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error = ENOENT;
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while (passed < hp->h_fn.fn_ealen) {
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printf("EAname: %s\n", EA_NAME(eap));
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if (eanum == *(u_long *)ap->a_data) {
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*(u_long *)ap->a_data =
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eap->ea_namelen + 1 +
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eap->ea_vallen;
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error = 0;
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break;
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}
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eanum++;
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passed += sizeof(struct ea) +
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eap->ea_namelen + 1 + eap->ea_vallen;
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eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
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passed);
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}
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} else {
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error = ENOENT;
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}
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break;
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}
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case HPFSIOCRDEA: {
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u_long eanum;
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u_long passed;
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struct hpfs_rdea *rdeap;
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struct ea *eap;
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rdeap = (struct hpfs_rdea *)ap->a_data;
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printf("EA%ld\n", rdeap->ea_no);
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eanum = 0;
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if (hp->h_fn.fn_ealen > 0) {
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eap = (struct ea *)&(hp->h_fn.fn_int);
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passed = 0;
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error = ENOENT;
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while (passed < hp->h_fn.fn_ealen) {
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printf("EAname: %s\n", EA_NAME(eap));
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if (eanum == rdeap->ea_no) {
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rdeap->ea_sz = eap->ea_namelen + 1 +
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eap->ea_vallen;
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copyout(EA_NAME(eap),rdeap->ea_data,
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rdeap->ea_sz);
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error = 0;
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break;
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}
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eanum++;
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passed += sizeof(struct ea) +
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eap->ea_namelen + 1 + eap->ea_vallen;
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eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
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passed);
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}
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} else {
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error = ENOENT;
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}
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break;
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}
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default:
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error = EOPNOTSUPP;
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break;
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}
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return (error);
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}
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/*
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* Map file offset to disk offset.
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*/
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int
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hpfs_bmap(ap)
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struct vop_bmap_args /* {
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struct vnode *a_vp;
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daddr_t a_bn;
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struct vnode **a_vpp;
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daddr_t *a_bnp;
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int *a_runp;
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int *a_runb;
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} */ *ap;
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{
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register struct hpfsnode *hp = VTOHP(ap->a_vp);
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daddr_t blkno;
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int error;
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if (ap->a_vpp != NULL)
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*ap->a_vpp = hp->h_devvp;
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if (ap->a_runb != NULL)
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*ap->a_runb = 0;
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if (ap->a_bnp == NULL)
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return (0);
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dprintf(("hpfs_bmap(0x%x, 0x%x): ",hp->h_no, ap->a_bn));
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error = hpfs_hpbmap (hp, ap->a_bn, &blkno, ap->a_runp);
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*ap->a_bnp = blkno;
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return (error);
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}
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static int
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hpfs_read(ap)
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struct vop_read_args /* {
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struct vnode *a_vp;
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struct uio *a_uio;
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int a_ioflag;
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struct ucred *a_cred;
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} */ *ap;
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{
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register struct vnode *vp = ap->a_vp;
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register struct hpfsnode *hp = VTOHP(vp);
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struct uio *uio = ap->a_uio;
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struct buf *bp;
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u_int xfersz, toread;
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u_int off;
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daddr_t lbn, bn;
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int resid;
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int runl;
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int error = 0;
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resid = min (uio->uio_resid, hp->h_fn.fn_size - uio->uio_offset);
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dprintf(("hpfs_read(0x%x, off: %d resid: %d, segflg: %d): [resid: 0x%x]\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg, resid));
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while (resid) {
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lbn = uio->uio_offset >> DEV_BSHIFT;
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off = uio->uio_offset & (DEV_BSIZE - 1);
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dprintf(("hpfs_read: resid: 0x%x lbn: 0x%x off: 0x%x\n",
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uio->uio_resid, lbn, off));
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error = hpfs_hpbmap(hp, lbn, &bn, &runl);
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if (error)
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return (error);
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toread = min(off + resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
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xfersz = (toread + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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dprintf(("hpfs_read: bn: 0x%x (0x%x) toread: 0x%x (0x%x)\n",
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bn, runl, toread, xfersz));
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if (toread == 0)
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break;
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error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp);
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if (error) {
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brelse(bp);
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break;
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}
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error = uiomove(bp->b_data + off, toread - off, uio);
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if(error) {
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brelse(bp);
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break;
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}
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brelse(bp);
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resid -= toread;
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}
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dprintf(("hpfs_read: successful\n"));
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return (error);
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}
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static int
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hpfs_write(ap)
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struct vop_write_args /* {
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struct vnode *a_vp;
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struct uio *a_uio;
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int a_ioflag;
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struct ucred *a_cred;
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} */ *ap;
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{
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register struct vnode *vp = ap->a_vp;
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register struct hpfsnode *hp = VTOHP(vp);
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struct uio *uio = ap->a_uio;
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struct buf *bp;
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u_int xfersz, towrite;
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u_int off;
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daddr_t lbn, bn;
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int runl;
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int error = 0;
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dprintf(("hpfs_write(0x%x, off: %d resid: %d, segflg: %d):\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
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if (ap->a_ioflag & IO_APPEND) {
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dprintf(("hpfs_write: APPEND mode\n"));
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uio->uio_offset = hp->h_fn.fn_size;
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}
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if (uio->uio_offset + uio->uio_resid > hp->h_fn.fn_size) {
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error = hpfs_extend (hp, uio->uio_offset + uio->uio_resid);
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if (error) {
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printf("hpfs_write: hpfs_extend FAILED %d\n", error);
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return (error);
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}
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}
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while (uio->uio_resid) {
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lbn = uio->uio_offset >> DEV_BSHIFT;
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off = uio->uio_offset & (DEV_BSIZE - 1);
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dprintf(("hpfs_write: resid: 0x%x lbn: 0x%x off: 0x%x\n",
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uio->uio_resid, lbn, off));
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error = hpfs_hpbmap(hp, lbn, &bn, &runl);
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if (error)
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return (error);
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towrite = min(off + uio->uio_resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
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xfersz = (towrite + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
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dprintf(("hpfs_write: bn: 0x%x (0x%x) towrite: 0x%x (0x%x)\n",
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bn, runl, towrite, xfersz));
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if ((off == 0) && (towrite == xfersz)) {
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bp = getblk(hp->h_devvp, bn, xfersz, 0, 0);
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clrbuf(bp);
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} else {
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error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp);
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if (error) {
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brelse(bp);
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return (error);
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}
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}
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error = uiomove(bp->b_data + off, towrite - off, uio);
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if(error) {
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brelse(bp);
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return (error);
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}
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|
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if (ap->a_ioflag & IO_SYNC)
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bwrite(bp);
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else
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bawrite(bp);
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}
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dprintf(("hpfs_write: successful\n"));
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return (0);
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}
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/*
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* XXXXX do we need hpfsnode locking inside?
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*/
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static int
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hpfs_getattr(ap)
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struct vop_getattr_args /* {
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struct vnode *a_vp;
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struct vattr *a_vap;
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struct ucred *a_cred;
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struct thread *a_td;
|
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} */ *ap;
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{
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register struct vnode *vp = ap->a_vp;
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register struct hpfsnode *hp = VTOHP(vp);
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register struct vattr *vap = ap->a_vap;
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int error;
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dprintf(("hpfs_getattr(0x%x):\n", hp->h_no));
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vap->va_fsid = dev2udev(hp->h_dev);
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vap->va_fileid = hp->h_no;
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vap->va_mode = hp->h_mode;
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vap->va_nlink = 1;
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vap->va_uid = hp->h_uid;
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vap->va_gid = hp->h_gid;
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vap->va_rdev = 0; /* XXX UNODEV ? */
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vap->va_size = hp->h_fn.fn_size;
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vap->va_bytes = ((hp->h_fn.fn_size + DEV_BSIZE-1) & ~(DEV_BSIZE-1)) +
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DEV_BSIZE;
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|
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if (!(hp->h_flag & H_PARVALID)) {
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error = hpfs_validateparent(hp);
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if (error)
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return (error);
|
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}
|
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vap->va_atime = hpfstimetounix(hp->h_atime);
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|
vap->va_mtime = hpfstimetounix(hp->h_mtime);
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vap->va_ctime = hpfstimetounix(hp->h_ctime);
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|
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vap->va_flags = 0;
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vap->va_gen = 0;
|
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vap->va_blocksize = DEV_BSIZE;
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vap->va_type = vp->v_type;
|
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vap->va_filerev = 0;
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|
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return (0);
|
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}
|
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|
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/*
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|
* XXXXX do we need hpfsnode locking inside?
|
|
*/
|
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static int
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hpfs_setattr(ap)
|
|
struct vop_setattr_args /* {
|
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struct vnode *a_vp;
|
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struct vattr *a_vap;
|
|
struct ucred *a_cred;
|
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struct thread *a_td;
|
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} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct hpfsnode *hp = VTOHP(vp);
|
|
struct vattr *vap = ap->a_vap;
|
|
struct ucred *cred = ap->a_cred;
|
|
struct thread *td = ap->a_td;
|
|
int error;
|
|
|
|
dprintf(("hpfs_setattr(0x%x):\n", hp->h_no));
|
|
|
|
/*
|
|
* Check for unsettable attributes.
|
|
*/
|
|
if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
|
|
(vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
|
|
(vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
|
|
(vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
|
|
dprintf(("hpfs_setattr: changing nonsettable attr\n"));
|
|
return (EINVAL);
|
|
}
|
|
|
|
/* Can't change flags XXX Could be implemented */
|
|
if (vap->va_flags != VNOVAL) {
|
|
printf("hpfs_setattr: FLAGS CANNOT BE SET\n");
|
|
return (EINVAL);
|
|
}
|
|
|
|
/* Can't change uid/gid XXX Could be implemented */
|
|
if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
|
|
printf("hpfs_setattr: UID/GID CANNOT BE SET\n");
|
|
return (EINVAL);
|
|
}
|
|
|
|
/* Can't change mode XXX Could be implemented */
|
|
if (vap->va_mode != (mode_t)VNOVAL) {
|
|
printf("hpfs_setattr: MODE CANNOT BE SET\n");
|
|
return (EINVAL);
|
|
}
|
|
|
|
/* Update times */
|
|
if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
if (cred->cr_uid != hp->h_uid &&
|
|
(error = suser_cred(cred, PRISON_ROOT)) &&
|
|
((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
|
|
(error = VOP_ACCESS(vp, VWRITE, cred, td))))
|
|
return (error);
|
|
if (vap->va_atime.tv_sec != VNOVAL)
|
|
hp->h_atime = vap->va_atime.tv_sec;
|
|
if (vap->va_mtime.tv_sec != VNOVAL)
|
|
hp->h_mtime = vap->va_mtime.tv_sec;
|
|
|
|
hp->h_flag |= H_PARCHANGE;
|
|
}
|
|
|
|
if (vap->va_size != VNOVAL) {
|
|
switch (vp->v_type) {
|
|
case VDIR:
|
|
return (EISDIR);
|
|
case VREG:
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
break;
|
|
default:
|
|
printf("hpfs_setattr: WRONG v_type\n");
|
|
return (EINVAL);
|
|
}
|
|
|
|
if (vap->va_size < hp->h_fn.fn_size) {
|
|
error = vtruncbuf(vp, cred, td, vap->va_size, DEV_BSIZE);
|
|
if (error)
|
|
return (error);
|
|
error = hpfs_truncate(hp, vap->va_size);
|
|
if (error)
|
|
return (error);
|
|
|
|
} else if (vap->va_size > hp->h_fn.fn_size) {
|
|
vnode_pager_setsize(vp, vap->va_size);
|
|
error = hpfs_extend(hp, vap->va_size);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Last reference to an node. If necessary, write or delete it.
|
|
*/
|
|
int
|
|
hpfs_inactive(ap)
|
|
struct vop_inactive_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
int error;
|
|
|
|
dprintf(("hpfs_inactive(0x%x): \n", hp->h_no));
|
|
|
|
if (hp->h_flag & H_CHANGE) {
|
|
dprintf(("hpfs_inactive: node changed, update\n"));
|
|
error = hpfs_update (hp);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
if (hp->h_flag & H_PARCHANGE) {
|
|
dprintf(("hpfs_inactive: parent node changed, update\n"));
|
|
error = hpfs_updateparent (hp);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
if (prtactive && vp->v_usecount != 0)
|
|
vprint("hpfs_inactive: pushing active", vp);
|
|
|
|
if (hp->h_flag & H_INVAL) {
|
|
VOP_UNLOCK(vp,0,ap->a_td);
|
|
vrecycle(vp, NULL, ap->a_td);
|
|
return (0);
|
|
}
|
|
|
|
VOP_UNLOCK(vp,0,ap->a_td);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Reclaim an inode so that it can be used for other purposes.
|
|
*/
|
|
int
|
|
hpfs_reclaim(ap)
|
|
struct vop_reclaim_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
|
|
dprintf(("hpfs_reclaim(0x%x0): \n", hp->h_no));
|
|
|
|
hpfs_hphashrem(hp);
|
|
|
|
/* Purge old data structures associated with the inode. */
|
|
cache_purge(vp);
|
|
if (hp->h_devvp) {
|
|
vrele(hp->h_devvp);
|
|
hp->h_devvp = NULL;
|
|
}
|
|
|
|
lockdestroy(&hp->h_lock);
|
|
mtx_destroy(&hp->h_interlock);
|
|
|
|
vp->v_data = NULL;
|
|
|
|
FREE(hp, M_HPFSNO);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
hpfs_print(ap)
|
|
struct vop_print_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
|
|
printf("tag VT_HPFS, ino 0x%x",hp->h_no);
|
|
lockmgr_printinfo(&hp->h_lock);
|
|
printf("\n");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Calculate the logical to physical mapping if not done already,
|
|
* then call the device strategy routine.
|
|
*
|
|
* In order to be able to swap to a file, the hpfs_hpbmap operation may not
|
|
* deadlock on memory. See hpfs_bmap() for details. XXXXXXX (not impl)
|
|
*/
|
|
int
|
|
hpfs_strategy(ap)
|
|
struct vop_strategy_args /* {
|
|
struct buf *a_bp;
|
|
} */ *ap;
|
|
{
|
|
register struct buf *bp = ap->a_bp;
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(ap->a_vp);
|
|
daddr_t blkno;
|
|
int error;
|
|
|
|
dprintf(("hpfs_strategy(): \n"));
|
|
|
|
if (vp->v_type == VBLK || vp->v_type == VCHR)
|
|
panic("hpfs_strategy: spec");
|
|
if (bp->b_blkno == bp->b_lblkno) {
|
|
error = hpfs_hpbmap (hp, bp->b_lblkno, &blkno, NULL);
|
|
bp->b_blkno = blkno;
|
|
if (error) {
|
|
printf("hpfs_strategy: hpfs_bpbmap FAILED %d\n", error);
|
|
bp->b_error = error;
|
|
bp->b_ioflags |= BIO_ERROR;
|
|
biodone(&bp->b_io);
|
|
return (error);
|
|
}
|
|
if ((long)bp->b_blkno == -1)
|
|
vfs_bio_clrbuf(bp);
|
|
}
|
|
if ((long)bp->b_blkno == -1) {
|
|
biodone(&bp->b_io);
|
|
return (0);
|
|
}
|
|
bp->b_dev = hp->h_devvp->v_rdev;
|
|
VOP_STRATEGY(hp->h_devvp, bp);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* XXXXX do we need hpfsnode locking inside?
|
|
*/
|
|
int
|
|
hpfs_access(ap)
|
|
struct vop_access_args /* {
|
|
struct vnode *a_vp;
|
|
int a_mode;
|
|
struct ucred *a_cred;
|
|
struct thread *a_td;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct hpfsnode *hp = VTOHP(vp);
|
|
mode_t mode = ap->a_mode;
|
|
|
|
dprintf(("hpfs_access(0x%x):\n", hp->h_no));
|
|
|
|
/*
|
|
* Disallow write attempts on read-only filesystems;
|
|
* unless the file is a socket, fifo, or a block or
|
|
* character device resident on the filesystem.
|
|
*/
|
|
if (mode & VWRITE) {
|
|
switch ((int)vp->v_type) {
|
|
case VDIR:
|
|
case VLNK:
|
|
case VREG:
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return (vaccess(vp->v_type, hp->h_mode, hp->h_uid, hp->h_gid,
|
|
ap->a_mode, ap->a_cred, NULL));
|
|
}
|
|
|
|
/*
|
|
* Open called.
|
|
*
|
|
* Nothing to do.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
hpfs_open(ap)
|
|
struct vop_open_args /* {
|
|
struct vnode *a_vp;
|
|
int a_mode;
|
|
struct ucred *a_cred;
|
|
struct thread *a_td;
|
|
} */ *ap;
|
|
{
|
|
#if HPFS_DEBUG
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
|
|
printf("hpfs_open(0x%x):\n",hp->h_no);
|
|
#endif
|
|
|
|
/*
|
|
* Files marked append-only must be opened for appending.
|
|
*/
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Close called.
|
|
*
|
|
* Update the times on the inode.
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
hpfs_close(ap)
|
|
struct vop_close_args /* {
|
|
struct vnode *a_vp;
|
|
int a_fflag;
|
|
struct ucred *a_cred;
|
|
struct thread *a_td;
|
|
} */ *ap;
|
|
{
|
|
#if HPFS_DEBUG
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
|
|
printf("hpfs_close: %d\n",hp->h_no);
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
hpfs_de_uiomove (
|
|
struct hpfsmount *hpmp,
|
|
struct hpfsdirent *dep,
|
|
struct uio *uio)
|
|
{
|
|
struct dirent cde;
|
|
int i, error;
|
|
|
|
dprintf(("[no: 0x%x, size: %d, name: %2d:%.*s, flag: 0x%x] ",
|
|
dep->de_fnode, dep->de_size, dep->de_namelen,
|
|
dep->de_namelen, dep->de_name, dep->de_flag));
|
|
|
|
/*strncpy(cde.d_name, dep->de_name, dep->de_namelen);*/
|
|
for (i=0; i<dep->de_namelen; i++)
|
|
cde.d_name[i] = hpfs_d2u(hpmp, dep->de_name[i]);
|
|
|
|
cde.d_name[dep->de_namelen] = '\0';
|
|
cde.d_namlen = dep->de_namelen;
|
|
cde.d_fileno = dep->de_fnode;
|
|
cde.d_type = (dep->de_flag & DE_DIR) ? DT_DIR : DT_REG;
|
|
cde.d_reclen = sizeof(struct dirent);
|
|
|
|
error = uiomove((char *)&cde, sizeof(struct dirent), uio);
|
|
if (error)
|
|
return (error);
|
|
|
|
dprintf(("[0x%x] ", uio->uio_resid));
|
|
return (error);
|
|
}
|
|
|
|
|
|
static struct dirent hpfs_de_dot =
|
|
{ 0, sizeof(struct dirent), DT_DIR, 1, "." };
|
|
static struct dirent hpfs_de_dotdot =
|
|
{ 0, sizeof(struct dirent), DT_DIR, 2, ".." };
|
|
int
|
|
hpfs_readdir(ap)
|
|
struct vop_readdir_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
struct ucred *a_cred;
|
|
int *a_ncookies;
|
|
u_int **cookies;
|
|
} */ *ap;
|
|
{
|
|
register struct vnode *vp = ap->a_vp;
|
|
register struct hpfsnode *hp = VTOHP(vp);
|
|
struct hpfsmount *hpmp = hp->h_hpmp;
|
|
struct uio *uio = ap->a_uio;
|
|
int ncookies = 0, i, num, cnum;
|
|
int error = 0;
|
|
off_t off;
|
|
struct buf *bp;
|
|
struct dirblk *dp;
|
|
struct hpfsdirent *dep;
|
|
lsn_t olsn;
|
|
lsn_t lsn;
|
|
int level;
|
|
|
|
dprintf(("hpfs_readdir(0x%x, 0x%x, 0x%x): ",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid));
|
|
|
|
off = uio->uio_offset;
|
|
|
|
if( uio->uio_offset < sizeof(struct dirent) ) {
|
|
dprintf((". faked, "));
|
|
hpfs_de_dot.d_fileno = hp->h_no;
|
|
error = uiomove((char *)&hpfs_de_dot,sizeof(struct dirent),uio);
|
|
if(error) {
|
|
return (error);
|
|
}
|
|
|
|
ncookies ++;
|
|
}
|
|
|
|
if( uio->uio_offset < 2 * sizeof(struct dirent) ) {
|
|
dprintf((".. faked, "));
|
|
hpfs_de_dotdot.d_fileno = hp->h_fn.fn_parent;
|
|
|
|
error = uiomove((char *)&hpfs_de_dotdot, sizeof(struct dirent),
|
|
uio);
|
|
if(error) {
|
|
return (error);
|
|
}
|
|
|
|
ncookies ++;
|
|
}
|
|
|
|
num = uio->uio_offset / sizeof(struct dirent) - 2;
|
|
cnum = 0;
|
|
|
|
lsn = ((alleaf_t *)hp->h_fn.fn_abd)->al_lsn;
|
|
|
|
olsn = 0;
|
|
level = 1;
|
|
|
|
dive:
|
|
dprintf(("[dive 0x%x] ", lsn));
|
|
error = bread(hp->h_devvp, lsn, D_BSIZE, NOCRED, &bp);
|
|
if (error) {
|
|
brelse(bp);
|
|
return (error);
|
|
}
|
|
|
|
dp = (struct dirblk *) bp->b_data;
|
|
if (dp->d_magic != D_MAGIC) {
|
|
printf("hpfs_readdir: MAGIC DOESN'T MATCH\n");
|
|
brelse(bp);
|
|
return (EINVAL);
|
|
}
|
|
|
|
dep = D_DIRENT(dp);
|
|
|
|
if (olsn) {
|
|
dprintf(("[restore 0x%x] ", olsn));
|
|
|
|
while(!(dep->de_flag & DE_END) ) {
|
|
if((dep->de_flag & DE_DOWN) &&
|
|
(olsn == DE_DOWNLSN(dep)))
|
|
break;
|
|
dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
|
|
}
|
|
|
|
if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) {
|
|
if (dep->de_flag & DE_END)
|
|
goto blockdone;
|
|
|
|
if (!(dep->de_flag & DE_SPECIAL)) {
|
|
if (num <= cnum) {
|
|
if (uio->uio_resid < sizeof(struct dirent)) {
|
|
brelse(bp);
|
|
dprintf(("[resid] "));
|
|
goto readdone;
|
|
}
|
|
|
|
error = hpfs_de_uiomove(hpmp, dep, uio);
|
|
if (error) {
|
|
brelse (bp);
|
|
return (error);
|
|
}
|
|
ncookies++;
|
|
|
|
if (uio->uio_resid < sizeof(struct dirent)) {
|
|
brelse(bp);
|
|
dprintf(("[resid] "));
|
|
goto readdone;
|
|
}
|
|
}
|
|
cnum++;
|
|
}
|
|
|
|
dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
|
|
} else {
|
|
printf("hpfs_readdir: ERROR! oLSN not found\n");
|
|
brelse(bp);
|
|
return (EINVAL);
|
|
}
|
|
}
|
|
|
|
olsn = 0;
|
|
|
|
while(!(dep->de_flag & DE_END)) {
|
|
if(dep->de_flag & DE_DOWN) {
|
|
lsn = DE_DOWNLSN(dep);
|
|
brelse(bp);
|
|
level++;
|
|
goto dive;
|
|
}
|
|
|
|
if (!(dep->de_flag & DE_SPECIAL)) {
|
|
if (num <= cnum) {
|
|
if (uio->uio_resid < sizeof(struct dirent)) {
|
|
brelse(bp);
|
|
dprintf(("[resid] "));
|
|
goto readdone;
|
|
}
|
|
|
|
error = hpfs_de_uiomove(hpmp, dep, uio);
|
|
if (error) {
|
|
brelse (bp);
|
|
return (error);
|
|
}
|
|
ncookies++;
|
|
|
|
if (uio->uio_resid < sizeof(struct dirent)) {
|
|
brelse(bp);
|
|
dprintf(("[resid] "));
|
|
goto readdone;
|
|
}
|
|
}
|
|
cnum++;
|
|
}
|
|
|
|
dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
|
|
}
|
|
|
|
if(dep->de_flag & DE_DOWN) {
|
|
dprintf(("[enddive] "));
|
|
lsn = DE_DOWNLSN(dep);
|
|
brelse(bp);
|
|
level++;
|
|
goto dive;
|
|
}
|
|
|
|
blockdone:
|
|
dprintf(("[EOB] "));
|
|
olsn = lsn;
|
|
lsn = dp->d_parent;
|
|
brelse(bp);
|
|
level--;
|
|
|
|
dprintf(("[level %d] ", level));
|
|
|
|
if (level > 0)
|
|
goto dive; /* undive really */
|
|
|
|
if (ap->a_eofflag) {
|
|
dprintf(("[EOF] "));
|
|
*ap->a_eofflag = 1;
|
|
}
|
|
|
|
readdone:
|
|
dprintf(("[readdone]\n"));
|
|
if (!error && ap->a_ncookies != NULL) {
|
|
struct dirent* dpStart;
|
|
struct dirent* dp;
|
|
u_long *cookies;
|
|
u_long *cookiep;
|
|
|
|
dprintf(("%d cookies, ",ncookies));
|
|
if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
|
|
panic("hpfs_readdir: unexpected uio from NFS server");
|
|
dpStart = (struct dirent *)
|
|
((caddr_t)uio->uio_iov->iov_base -
|
|
(uio->uio_offset - off));
|
|
MALLOC(cookies, u_long *, ncookies * sizeof(u_long),
|
|
M_TEMP, M_WAITOK);
|
|
for (dp = dpStart, cookiep = cookies, i=0;
|
|
i < ncookies;
|
|
dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) {
|
|
off += dp->d_reclen;
|
|
*cookiep++ = (u_int) off;
|
|
}
|
|
*ap->a_ncookies = ncookies;
|
|
*ap->a_cookies = cookies;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
hpfs_lookup(ap)
|
|
struct vop_lookup_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
register struct vnode *dvp = ap->a_dvp;
|
|
register struct hpfsnode *dhp = VTOHP(dvp);
|
|
struct hpfsmount *hpmp = dhp->h_hpmp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct ucred *cred = cnp->cn_cred;
|
|
int error;
|
|
int nameiop = cnp->cn_nameiop;
|
|
int flags = cnp->cn_flags;
|
|
int lockparent = flags & LOCKPARENT;
|
|
#if HPFS_DEBUG
|
|
int wantparent = flags & (LOCKPARENT|WANTPARENT);
|
|
#endif
|
|
dprintf(("hpfs_lookup(0x%x, %s, %ld, %d, %d): \n",
|
|
dhp->h_no, cnp->cn_nameptr, cnp->cn_namelen,
|
|
lockparent, wantparent));
|
|
|
|
if (nameiop != CREATE && nameiop != DELETE && nameiop != LOOKUP) {
|
|
printf("hpfs_lookup: LOOKUP, DELETE and CREATE are only supported\n");
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_thread);
|
|
if(error)
|
|
return (error);
|
|
|
|
if( (cnp->cn_namelen == 1) &&
|
|
!strncmp(cnp->cn_nameptr,".",1) ) {
|
|
dprintf(("hpfs_lookup(0x%x,...): . faked\n",dhp->h_no));
|
|
|
|
VREF(dvp);
|
|
*ap->a_vpp = dvp;
|
|
|
|
return (0);
|
|
} else if( (cnp->cn_namelen == 2) &&
|
|
!strncmp(cnp->cn_nameptr,"..",2) && (flags & ISDOTDOT) ) {
|
|
dprintf(("hpfs_lookup(0x%x,...): .. faked (0x%x)\n",
|
|
dhp->h_no, dhp->h_fn.fn_parent));
|
|
|
|
if (VFS_VGET(hpmp->hpm_mp, dhp->h_fn.fn_parent,
|
|
LK_NOWAIT | LK_EXCLUSIVE, ap->a_vpp)) {
|
|
VOP_UNLOCK(dvp,0,cnp->cn_thread);
|
|
error = VFS_VGET(hpmp->hpm_mp,
|
|
dhp->h_fn.fn_parent, LK_EXCLUSIVE, ap->a_vpp);
|
|
VOP_LOCK(dvp, 0, cnp->cn_thread);
|
|
if(error)
|
|
return(error);
|
|
}
|
|
if (!lockparent || !(flags & ISLASTCN))
|
|
VOP_UNLOCK(dvp,0,cnp->cn_thread);
|
|
return (0);
|
|
} else {
|
|
struct buf *bp;
|
|
struct hpfsdirent *dep;
|
|
struct hpfsnode *hp;
|
|
|
|
error = hpfs_genlookupbyname(dhp,
|
|
cnp->cn_nameptr, cnp->cn_namelen, &bp, &dep);
|
|
if (error) {
|
|
if ((error == ENOENT) && (flags & ISLASTCN) &&
|
|
(nameiop == CREATE || nameiop == RENAME)) {
|
|
if(!lockparent)
|
|
VOP_UNLOCK(dvp, 0, cnp->cn_thread);
|
|
cnp->cn_flags |= SAVENAME;
|
|
return (EJUSTRETURN);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
dprintf(("hpfs_lookup: fnode: 0x%x, CPID: 0x%x\n",
|
|
dep->de_fnode, dep->de_cpid));
|
|
|
|
if (nameiop == DELETE && (flags & ISLASTCN)) {
|
|
error = VOP_ACCESS(dvp, VWRITE, cred, cnp->cn_thread);
|
|
if (error) {
|
|
brelse(bp);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
if (dhp->h_no == dep->de_fnode) {
|
|
brelse(bp);
|
|
VREF(dvp);
|
|
*ap->a_vpp = dvp;
|
|
return (0);
|
|
}
|
|
|
|
error = VFS_VGET(hpmp->hpm_mp, dep->de_fnode, LK_EXCLUSIVE,
|
|
ap->a_vpp);
|
|
if (error) {
|
|
printf("hpfs_lookup: VFS_VGET FAILED %d\n", error);
|
|
brelse(bp);
|
|
return(error);
|
|
}
|
|
|
|
hp = VTOHP(*ap->a_vpp);
|
|
|
|
hp->h_mtime = dep->de_mtime;
|
|
hp->h_ctime = dep->de_ctime;
|
|
hp->h_atime = dep->de_atime;
|
|
bcopy(dep->de_name, hp->h_name, dep->de_namelen);
|
|
hp->h_name[dep->de_namelen] = '\0';
|
|
hp->h_namelen = dep->de_namelen;
|
|
hp->h_flag |= H_PARVALID;
|
|
|
|
brelse(bp);
|
|
|
|
if(!lockparent || !(flags & ISLASTCN))
|
|
VOP_UNLOCK(dvp, 0, cnp->cn_thread);
|
|
if ((flags & MAKEENTRY) &&
|
|
(!(flags & ISLASTCN) ||
|
|
(nameiop != DELETE && nameiop != CREATE)))
|
|
cache_enter(dvp, *ap->a_vpp, cnp);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
hpfs_remove(ap)
|
|
struct vop_remove_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
int error;
|
|
|
|
dprintf(("hpfs_remove(0x%x, %s, %ld): \n", VTOHP(ap->a_vp)->h_no,
|
|
ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
|
|
|
|
if (ap->a_vp->v_type == VDIR)
|
|
return (EPERM);
|
|
|
|
error = hpfs_removefnode (ap->a_dvp, ap->a_vp, ap->a_cnp);
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
hpfs_create(ap)
|
|
struct vop_create_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap;
|
|
{
|
|
int error;
|
|
|
|
dprintf(("hpfs_create(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no,
|
|
ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
|
|
|
|
if (!(ap->a_cnp->cn_flags & HASBUF))
|
|
panic ("hpfs_create: no name\n");
|
|
|
|
error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Return POSIX pathconf information applicable to NTFS filesystem
|
|
*/
|
|
int
|
|
hpfs_pathconf(ap)
|
|
struct vop_pathconf_args /* {
|
|
struct vnode *a_vp;
|
|
int a_name;
|
|
register_t *a_retval;
|
|
} */ *ap;
|
|
{
|
|
switch (ap->a_name) {
|
|
case _PC_LINK_MAX:
|
|
*ap->a_retval = 1;
|
|
return (0);
|
|
case _PC_NAME_MAX:
|
|
*ap->a_retval = HPFS_MAXFILENAME;
|
|
return (0);
|
|
case _PC_PATH_MAX:
|
|
*ap->a_retval = PATH_MAX;
|
|
return (0);
|
|
case _PC_CHOWN_RESTRICTED:
|
|
*ap->a_retval = 1;
|
|
return (0);
|
|
case _PC_NO_TRUNC:
|
|
*ap->a_retval = 0;
|
|
return (0);
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
|
|
/*
|
|
* Global vfs data structures
|
|
*/
|
|
vop_t **hpfs_vnodeop_p;
|
|
struct vnodeopv_entry_desc hpfs_vnodeop_entries[] = {
|
|
{ &vop_default_desc, (vop_t *)vop_defaultop },
|
|
|
|
{ &vop_getattr_desc, (vop_t *)hpfs_getattr },
|
|
{ &vop_setattr_desc, (vop_t *)hpfs_setattr },
|
|
{ &vop_inactive_desc, (vop_t *)hpfs_inactive },
|
|
{ &vop_reclaim_desc, (vop_t *)hpfs_reclaim },
|
|
{ &vop_print_desc, (vop_t *)hpfs_print },
|
|
{ &vop_create_desc, (vop_t *)hpfs_create },
|
|
{ &vop_remove_desc, (vop_t *)hpfs_remove },
|
|
{ &vop_islocked_desc, (vop_t *)vop_stdislocked },
|
|
{ &vop_unlock_desc, (vop_t *)vop_stdunlock },
|
|
{ &vop_lock_desc, (vop_t *)vop_stdlock },
|
|
{ &vop_cachedlookup_desc, (vop_t *)hpfs_lookup },
|
|
{ &vop_lookup_desc, (vop_t *)vfs_cache_lookup },
|
|
{ &vop_access_desc, (vop_t *)hpfs_access },
|
|
{ &vop_close_desc, (vop_t *)hpfs_close },
|
|
{ &vop_open_desc, (vop_t *)hpfs_open },
|
|
{ &vop_readdir_desc, (vop_t *)hpfs_readdir },
|
|
{ &vop_fsync_desc, (vop_t *)hpfs_fsync },
|
|
{ &vop_bmap_desc, (vop_t *)hpfs_bmap },
|
|
{ &vop_strategy_desc, (vop_t *)hpfs_strategy },
|
|
{ &vop_read_desc, (vop_t *)hpfs_read },
|
|
{ &vop_write_desc, (vop_t *)hpfs_write },
|
|
{ &vop_ioctl_desc, (vop_t *)hpfs_ioctl },
|
|
{ &vop_pathconf_desc, (vop_t *)hpfs_pathconf },
|
|
{ NULL, NULL }
|
|
};
|
|
|
|
static
|
|
struct vnodeopv_desc hpfs_vnodeop_opv_desc =
|
|
{ &hpfs_vnodeop_p, hpfs_vnodeop_entries };
|
|
|
|
VNODEOP_SET(hpfs_vnodeop_opv_desc);
|