1421 lines
34 KiB
C
1421 lines
34 KiB
C
/* $NetBSD: smbfs_vnops.c,v 1.41 2004/03/21 13:43:09 jdolecek Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jaromir Dolecek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 2000-2001 Boris Popov
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Boris Popov.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE 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: src/sys/fs/smbfs/smbfs_vnops.c,v 1.15 2001/12/20 15:56:45 bp Exp
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: smbfs_vnops.c,v 1.41 2004/03/21 13:43:09 jdolecek Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/buf.h>
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#include <sys/fcntl.h>
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#include <sys/mount.h>
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#include <sys/unistd.h>
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#include <sys/vnode.h>
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#include <sys/lockf.h>
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#include <machine/limits.h>
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#include <uvm/uvm.h>
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#include <uvm/uvm_extern.h>
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#include <netsmb/smb.h>
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#include <netsmb/smb_conn.h>
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#include <netsmb/smb_subr.h>
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#include <fs/smbfs/smbfs.h>
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#include <fs/smbfs/smbfs_node.h>
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#include <fs/smbfs/smbfs_subr.h>
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#include <miscfs/genfs/genfs.h>
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/*
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* Prototypes for SMBFS vnode operations
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*/
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int smbfs_create(void *);
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int smbfs_open(void *);
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int smbfs_close(void *);
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int smbfs_access(void *);
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int smbfs_getattr(void *);
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int smbfs_setattr(void *);
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int smbfs_read(void *);
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int smbfs_write(void *);
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int smbfs_fsync(void *);
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int smbfs_remove(void *);
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int smbfs_link(void *);
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int smbfs_lookup(void *);
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int smbfs_rename(void *);
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int smbfs_mkdir(void *);
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int smbfs_rmdir(void *);
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int smbfs_symlink(void *);
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int smbfs_readdir(void *);
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int smbfs_strategy(void *);
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int smbfs_print(void *);
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int smbfs_pathconf(void *ap);
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int smbfs_advlock(void *);
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int (**smbfs_vnodeop_p) __P((void *));
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static struct vnodeopv_entry_desc smbfs_vnodeop_entries[] = {
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{ &vop_default_desc, vn_default_error },
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{ &vop_access_desc, smbfs_access },
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{ &vop_advlock_desc, smbfs_advlock },
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{ &vop_close_desc, smbfs_close },
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{ &vop_create_desc, smbfs_create },
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{ &vop_fsync_desc, smbfs_fsync },
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{ &vop_getattr_desc, smbfs_getattr },
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{ &vop_getpages_desc, genfs_compat_getpages },
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{ &vop_inactive_desc, smbfs_inactive },
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{ &vop_ioctl_desc, genfs_enoioctl },
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{ &vop_islocked_desc, genfs_islocked },
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{ &vop_link_desc, smbfs_link },
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{ &vop_lock_desc, genfs_lock },
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{ &vop_lookup_desc, smbfs_lookup },
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{ &vop_mkdir_desc, smbfs_mkdir },
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{ &vop_mknod_desc, genfs_eopnotsupp },
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{ &vop_open_desc, smbfs_open },
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{ &vop_pathconf_desc, smbfs_pathconf },
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{ &vop_print_desc, smbfs_print },
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{ &vop_putpages_desc, genfs_putpages },
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{ &vop_read_desc, smbfs_read },
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{ &vop_readdir_desc, smbfs_readdir },
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{ &vop_reclaim_desc, smbfs_reclaim },
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{ &vop_remove_desc, smbfs_remove },
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{ &vop_rename_desc, smbfs_rename },
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{ &vop_rmdir_desc, smbfs_rmdir },
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{ &vop_setattr_desc, smbfs_setattr },
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{ &vop_strategy_desc, smbfs_strategy },
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{ &vop_symlink_desc, smbfs_symlink },
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{ &vop_unlock_desc, genfs_unlock },
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{ &vop_write_desc, smbfs_write },
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{ &vop_mmap_desc, genfs_mmap }, /* mmap */
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{ &vop_seek_desc, genfs_seek }, /* seek */
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{ &vop_kqfilter_desc, smbfs_kqfilter}, /* kqfilter */
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{ NULL, NULL }
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};
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const struct vnodeopv_desc smbfs_vnodeop_opv_desc =
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{ &smbfs_vnodeop_p, smbfs_vnodeop_entries };
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int
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smbfs_access(v)
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void *v;
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{
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struct vop_access_args /* {
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struct vnode *a_vp;
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int a_mode;
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struct ucred *a_cred;
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struct proc *a_p;
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} */ *ap = v;
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struct vnode *vp = ap->a_vp;
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#ifdef SMB_VNODE_DEBUG
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struct smbnode *np = VTOSMB(vp);
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#endif
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u_int acc_mode = ap->a_mode;
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struct smbmount *smp = VTOSMBFS(vp);
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SMBVDEBUG("file '%.*s', node mode=%o, acc mode=%x\n",
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(int) np->n_nmlen, np->n_name,
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(vp->v_type == VDIR) ? smp->sm_args.dir_mode : smp->sm_args.file_mode,
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acc_mode);
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/*
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* Disallow write attempts on read-only file systems;
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* unless the file is a socket, fifo, or a block or
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* character device resident on the file system.
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*/
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if (acc_mode & VWRITE) {
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switch (vp->v_type) {
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case VREG:
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case VDIR:
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case VLNK:
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if (vp->v_mount->mnt_flag & MNT_RDONLY)
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return EROFS;
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default:
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break;
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}
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}
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return (vaccess(vp->v_type,
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(vp->v_type == VDIR) ? smp->sm_args.dir_mode : smp->sm_args.file_mode,
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smp->sm_args.uid, smp->sm_args.gid,
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acc_mode, ap->a_cred));
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}
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/* ARGSUSED */
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int
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smbfs_open(v)
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void *v;
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{
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struct vop_open_args /* {
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struct vnode *a_vp;
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int a_mode;
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struct ucred *a_cred;
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struct proc *a_p;
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} */ *ap = v;
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struct vnode *vp = ap->a_vp;
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struct smbnode *np = VTOSMB(vp);
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struct smb_cred scred;
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struct vattr vattr;
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u_int32_t sv_caps = SMB_CAPS(SSTOVC(np->n_mount->sm_share));
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int error, accmode;
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SMBVDEBUG("%.*s,%d\n", (int) np->n_nmlen, np->n_name,
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(np->n_flag & NOPEN) != 0);
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if (vp->v_type != VREG && vp->v_type != VDIR) {
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SMBFSERR("open eacces vtype=%d\n", vp->v_type);
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return EACCES;
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}
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if (vp->v_type == VDIR) {
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if ((sv_caps & SMB_CAP_NT_SMBS) == 0) {
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np->n_flag |= NOPEN;
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return 0;
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}
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goto do_open; /* skip 'modified' check */
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}
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if (np->n_flag & NMODIFIED) {
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if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1)) == EINTR)
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return error;
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smbfs_attr_cacheremove(vp);
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error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
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if (error)
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return error;
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np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
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} else {
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error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);
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if (error)
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return error;
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if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
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error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1);
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if (error == EINTR)
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return error;
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np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
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}
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}
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do_open:
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if ((np->n_flag & NOPEN) != 0)
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return 0;
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smb_makescred(&scred, ap->a_p, ap->a_cred);
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if (vp->v_type == VDIR)
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error = smbfs_smb_ntcreatex(np, SMB_AM_OPENREAD, &scred);
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else {
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accmode = SMB_AM_OPENREAD;
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if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
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accmode = SMB_AM_OPENRW;
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error = smbfs_smb_open(np, accmode, &scred);
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if (error) {
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if (ap->a_mode & FWRITE)
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return EACCES;
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error = smbfs_smb_open(np, SMB_AM_OPENREAD, &scred);
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}
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}
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if (!error)
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np->n_flag |= NOPEN;
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smbfs_attr_cacheremove(vp);
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return error;
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}
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/*
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* Close called.
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*/
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int
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smbfs_close(v)
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void *v;
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{
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struct vop_close_args /* {
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struct vnodeop_desc *a_desc;
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struct vnode *a_vp;
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int a_fflag;
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struct ucred *a_cred;
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struct proc *a_p;
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} */ *ap = v;
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int error;
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struct vnode *vp = ap->a_vp;
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struct smbnode *np = VTOSMB(vp);
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/* Flush all file data */
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error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_p, 1);
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if (error)
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return (error);
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/*
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* We must close the directory lookup context now, so that
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* later directory changes would be properly detected.
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* Ideally, the lookup routines should handle such case, and
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* the context would be removed only in smbfs_inactive().
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*/
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if (vp->v_type == VDIR && (np->n_flag & NOPEN) != 0 &&
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np->n_dirseq != NULL) {
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struct smb_cred scred;
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smb_makescred(&scred, ap->a_p, ap->a_cred);
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smbfs_findclose(np->n_dirseq, &scred);
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np->n_dirseq = NULL;
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}
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return (0);
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}
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/*
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* smbfs_getattr call from vfs.
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*/
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int
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smbfs_getattr(v)
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void *v;
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{
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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 proc *p;
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} */ *ap = v;
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struct vnode *vp = ap->a_vp;
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struct smbnode *np = VTOSMB(vp);
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struct vattr *va=ap->a_vap;
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struct smbfattr fattr;
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struct smb_cred scred;
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u_quad_t oldsize;
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int error;
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SMBVDEBUG("%p: '%.*s' isroot %d\n", vp,
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(int) np->n_nmlen, np->n_name, (vp->v_flag & VROOT) != 0);
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if ((error = smbfs_attr_cachelookup(vp, va)) == 0)
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return (0);
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SMBVDEBUG("not in the cache\n");
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smb_makescred(&scred, ap->a_p, ap->a_cred);
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oldsize = np->n_size;
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error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
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if (error) {
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SMBVDEBUG("error %d\n", error);
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return error;
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}
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smbfs_attr_cacheenter(vp, &fattr);
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smbfs_attr_cachelookup(vp, va);
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if ((np->n_flag & NOPEN) != 0)
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np->n_size = oldsize;
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return 0;
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}
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int
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smbfs_setattr(v)
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void *v;
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{
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struct vop_setattr_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 proc *p;
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} */ *ap = v;
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struct vnode *vp = ap->a_vp;
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struct smbnode *np = VTOSMB(vp);
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struct vattr *vap = ap->a_vap;
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struct timespec *mtime, *atime;
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struct smb_cred scred;
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struct smb_share *ssp = np->n_mount->sm_share;
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struct smb_vc *vcp = SSTOVC(ssp);
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u_quad_t tsize = 0;
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int isreadonly, doclose, error = 0;
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SMBVDEBUG("\n");
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if (vap->va_flags != VNOVAL)
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return EOPNOTSUPP;
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isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
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/*
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* Disallow write attempts if the filesystem is mounted read-only.
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*/
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if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
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vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
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vap->va_mode != (mode_t)VNOVAL) && isreadonly)
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return EROFS;
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smb_makescred(&scred, ap->a_p, ap->a_cred);
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if (vap->va_size != VNOVAL) {
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switch (vp->v_type) {
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case VDIR:
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return EISDIR;
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case VREG:
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break;
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default:
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return EINVAL;
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};
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if (isreadonly)
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return EROFS;
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doclose = 0;
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tsize = np->n_size;
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np->n_size = vap->va_size;
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uvm_vnp_setsize(vp, vap->va_size);
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if ((np->n_flag & NOPEN) == 0) {
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error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred);
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if (error == 0)
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doclose = 1;
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}
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if (error == 0)
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error = smbfs_smb_setfsize(np, vap->va_size, &scred);
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if (doclose)
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smbfs_smb_close(ssp, np->n_fid, NULL, &scred);
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if (error) {
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np->n_size = tsize;
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uvm_vnp_setsize(vp, tsize);
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return (error);
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}
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}
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mtime = atime = NULL;
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if (vap->va_mtime.tv_sec != VNOVAL)
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mtime = &vap->va_mtime;
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if (vap->va_atime.tv_sec != VNOVAL)
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atime = &vap->va_atime;
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if (mtime != atime) {
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if (ap->a_cred->cr_uid != VTOSMBFS(vp)->sm_args.uid &&
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(error = suser(ap->a_cred, &ap->a_p->p_acflag)) &&
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((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
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(error = VOP_ACCESS(ap->a_vp, VWRITE, ap->a_cred, ap->a_p))))
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return (error);
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#if 0
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if (mtime == NULL)
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mtime = &np->n_mtime;
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if (atime == NULL)
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atime = &np->n_atime;
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#endif
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/*
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|
* If file is opened, then we can use handle based calls.
|
|
* If not, use path based ones.
|
|
*/
|
|
if ((np->n_flag & NOPEN) == 0) {
|
|
if (vcp->vc_flags & SMBV_WIN95) {
|
|
error = VOP_OPEN(vp, FWRITE, ap->a_cred, ap->a_p);
|
|
if (!error) {
|
|
/* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
|
|
VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_p);*/
|
|
if (mtime)
|
|
np->n_mtime = *mtime;
|
|
VOP_CLOSE(vp, FWRITE, ap->a_cred, ap->a_p);
|
|
}
|
|
} else if (SMB_CAPS(vcp) & SMB_CAP_NT_SMBS) {
|
|
error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
|
|
/* error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);*/
|
|
} else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) {
|
|
error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
|
|
} else {
|
|
error = smbfs_smb_setpattr(np, 0, mtime, &scred);
|
|
}
|
|
} else {
|
|
if (SMB_CAPS(vcp) & SMB_CAP_NT_SMBS) {
|
|
error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
|
|
} else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) {
|
|
error = smbfs_smb_setftime(np, mtime, atime, &scred);
|
|
} else {
|
|
/*
|
|
* XXX I have no idea how to handle this for core
|
|
* level servers. The possible solution is to
|
|
* update mtime after file is closed.
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* Invalidate attribute cache in case if server doesn't set
|
|
* required attributes.
|
|
*/
|
|
smbfs_attr_cacheremove(vp); /* invalidate cache */
|
|
VOP_GETATTR(vp, vap, ap->a_cred, ap->a_p);
|
|
np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
|
|
VN_KNOTE(vp, NOTE_ATTRIB);
|
|
return error;
|
|
}
|
|
/*
|
|
* smbfs_read call.
|
|
*/
|
|
int
|
|
smbfs_read(v)
|
|
void *v;
|
|
{
|
|
struct vop_read_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
int a_ioflag;
|
|
struct ucred *a_cred;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
|
|
if (vp->v_type != VREG && vp->v_type != VDIR)
|
|
return EPERM;
|
|
|
|
return smbfs_readvnode(vp, ap->a_uio, ap->a_cred);
|
|
}
|
|
|
|
int
|
|
smbfs_write(v)
|
|
void *v;
|
|
{
|
|
struct vop_write_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
int a_ioflag;
|
|
struct ucred *a_cred;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct uio *uio = ap->a_uio;
|
|
|
|
SMBVDEBUG("%d,ofs=%lld,sz=%u\n",vp->v_type, (long long int)uio->uio_offset, uio->uio_resid);
|
|
if (vp->v_type != VREG)
|
|
return (EPERM);
|
|
return smbfs_writevnode(vp, uio, ap->a_cred, ap->a_ioflag);
|
|
}
|
|
/*
|
|
* smbfs_create call
|
|
* Create a regular file. On entry the directory to contain the file being
|
|
* created is locked. We must release before we return. We must also free
|
|
* the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
|
|
* only if the SAVESTART bit in cn_flags is clear on success.
|
|
*/
|
|
int
|
|
smbfs_create(v)
|
|
void *v;
|
|
{
|
|
struct vop_create_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap = v;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct vattr *vap = ap->a_vap;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct smbnode *dnp = VTOSMB(dvp);
|
|
struct smbfattr fattr;
|
|
struct smb_cred scred;
|
|
const char *name = cnp->cn_nameptr;
|
|
int nmlen = cnp->cn_namelen;
|
|
int error = EINVAL;
|
|
|
|
|
|
if (vap->va_type != VREG)
|
|
goto out;
|
|
|
|
smb_makescred(&scred, cnp->cn_proc, cnp->cn_cred);
|
|
error = smbfs_smb_create(dnp, name, nmlen, &scred);
|
|
if (error)
|
|
goto out;
|
|
|
|
error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
|
|
if (error)
|
|
goto out;
|
|
error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, ap->a_vpp);
|
|
if (error)
|
|
goto out;
|
|
|
|
/* No error */
|
|
if (cnp->cn_flags & MAKEENTRY)
|
|
cache_enter(dvp, *ap->a_vpp, cnp);
|
|
|
|
out:
|
|
if (error || ((cnp->cn_flags & SAVESTART) == 0))
|
|
PNBUF_PUT(cnp->cn_pnbuf);
|
|
VN_KNOTE(dvp, NOTE_WRITE);
|
|
vput(dvp);
|
|
return (error);
|
|
|
|
|
|
}
|
|
|
|
int
|
|
smbfs_remove(v)
|
|
void *v;
|
|
{
|
|
struct vop_remove_args /* {
|
|
struct vnodeop_desc *a_desc;
|
|
struct vnode * a_dvp;
|
|
struct vnode * a_vp;
|
|
struct componentname * a_cnp;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
struct smb_cred scred;
|
|
int error;
|
|
|
|
if (vp->v_type == VDIR || (np->n_flag & NOPEN) != 0
|
|
|| vp->v_usecount != 1) {
|
|
/* XXX Eventually should do something along NFS sillyrename */
|
|
error = EPERM;
|
|
} else {
|
|
smb_makescred(&scred, cnp->cn_proc, cnp->cn_cred);
|
|
error = smbfs_smb_delete(np, &scred);
|
|
}
|
|
|
|
VN_KNOTE(ap->a_vp, NOTE_DELETE);
|
|
VN_KNOTE(ap->a_dvp, NOTE_WRITE);
|
|
if (dvp == vp)
|
|
vrele(vp);
|
|
else
|
|
vput(vp);
|
|
vput(dvp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* smbfs_file rename call
|
|
*/
|
|
int
|
|
smbfs_rename(v)
|
|
void *v;
|
|
{
|
|
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 = v;
|
|
struct vnode *fvp = ap->a_fvp;
|
|
struct vnode *tvp = ap->a_tvp;
|
|
struct vnode *fdvp = ap->a_fdvp;
|
|
struct vnode *tdvp = ap->a_tdvp;
|
|
struct componentname *tcnp = ap->a_tcnp;
|
|
/* struct componentname *fcnp = ap->a_fcnp;*/
|
|
struct smb_cred scred;
|
|
#ifdef notyet
|
|
u_int16_t flags = 6;
|
|
#endif
|
|
int error=0;
|
|
|
|
/* Check for cross-device rename */
|
|
if ((fvp->v_mount != tdvp->v_mount) ||
|
|
(tvp && (fvp->v_mount != tvp->v_mount))) {
|
|
error = EXDEV;
|
|
goto out;
|
|
}
|
|
|
|
if (tvp && tvp->v_usecount > 1) {
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
#ifdef notnow
|
|
flags = 0x10; /* verify all writes */
|
|
if (fvp->v_type == VDIR) {
|
|
flags |= 2;
|
|
} else if (fvp->v_type == VREG) {
|
|
flags |= 1;
|
|
} else {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
#endif
|
|
smb_makescred(&scred, tcnp->cn_proc, tcnp->cn_cred);
|
|
/*
|
|
* It seems that Samba doesn't implement SMB_COM_MOVE call...
|
|
*/
|
|
#ifdef notnow
|
|
if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
|
|
error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
|
|
tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred);
|
|
} else
|
|
#endif
|
|
{
|
|
/*
|
|
* We have to do the work atomicaly
|
|
*/
|
|
if (tvp && tvp != fvp) {
|
|
error = smbfs_smb_delete(VTOSMB(tvp), &scred);
|
|
if (error)
|
|
goto out;
|
|
VN_KNOTE(tdvp, NOTE_WRITE);
|
|
VN_KNOTE(tvp, NOTE_DELETE);
|
|
cache_purge(tvp);
|
|
}
|
|
error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
|
|
tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
|
|
VN_KNOTE(fdvp, NOTE_WRITE);
|
|
VN_KNOTE(fvp, NOTE_RENAME);
|
|
}
|
|
|
|
if (fvp->v_type == VDIR) {
|
|
if (tvp != NULL && tvp->v_type == VDIR)
|
|
cache_purge(tdvp);
|
|
cache_purge(fdvp);
|
|
}
|
|
|
|
smbfs_attr_cacheremove(fdvp);
|
|
smbfs_attr_cacheremove(tdvp);
|
|
|
|
out:
|
|
|
|
if (tdvp == tvp)
|
|
vrele(tdvp);
|
|
else
|
|
vput(tdvp);
|
|
if (tvp)
|
|
vput(tvp);
|
|
|
|
vrele(fdvp);
|
|
vrele(fvp);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* somtime it will come true...
|
|
*/
|
|
int
|
|
smbfs_link(v)
|
|
void *v;
|
|
{
|
|
return genfs_eopnotsupp(v);
|
|
}
|
|
|
|
/*
|
|
* smbfs_symlink link create call.
|
|
* Sometime it will be functional...
|
|
*/
|
|
int
|
|
smbfs_symlink(v)
|
|
void *v;
|
|
{
|
|
return genfs_eopnotsupp(v);
|
|
}
|
|
|
|
int
|
|
smbfs_mkdir(v)
|
|
void *v;
|
|
{
|
|
struct vop_mkdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap = v;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
/* struct vattr *vap = ap->a_vap;*/
|
|
struct vnode *vp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct smbnode *dnp = VTOSMB(dvp);
|
|
struct smb_cred scred;
|
|
struct smbfattr fattr;
|
|
const char *name = cnp->cn_nameptr;
|
|
int len = cnp->cn_namelen;
|
|
int error;
|
|
|
|
if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))){
|
|
error = EEXIST;
|
|
goto out;
|
|
}
|
|
|
|
smb_makescred(&scred, cnp->cn_proc, cnp->cn_cred);
|
|
error = smbfs_smb_mkdir(dnp, name, len, &scred);
|
|
if (error)
|
|
goto out;
|
|
error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
|
|
if (error)
|
|
goto out;
|
|
error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
|
|
if (error)
|
|
goto out;
|
|
*ap->a_vpp = vp;
|
|
|
|
out:
|
|
if (error || ((cnp->cn_flags & SAVESTART) == 0))
|
|
PNBUF_PUT(cnp->cn_pnbuf);
|
|
VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
|
|
vput(dvp);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* smbfs_remove directory call
|
|
*/
|
|
int
|
|
smbfs_rmdir(v)
|
|
void *v;
|
|
{
|
|
struct vop_rmdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
/* struct smbmount *smp = VTOSMBFS(vp);*/
|
|
struct smbnode *dnp = VTOSMB(dvp);
|
|
struct smbnode *np = VTOSMB(vp);
|
|
struct smb_cred scred;
|
|
int error;
|
|
|
|
if (dvp == vp) {
|
|
vrele(dvp);
|
|
vput(dvp);
|
|
return (EINVAL);
|
|
}
|
|
|
|
smb_makescred(&scred, cnp->cn_proc, cnp->cn_cred);
|
|
error = smbfs_smb_rmdir(np, &scred);
|
|
dnp->n_flag |= NMODIFIED;
|
|
smbfs_attr_cacheremove(dvp);
|
|
VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
|
|
VN_KNOTE(vp, NOTE_DELETE);
|
|
cache_purge(dvp);
|
|
cache_purge(vp);
|
|
vput(vp);
|
|
vput(dvp);
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* smbfs_readdir call
|
|
*/
|
|
int
|
|
smbfs_readdir(v)
|
|
void *v;
|
|
{
|
|
struct vop_readdir_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
struct ucred *a_cred;
|
|
int *a_eofflag;
|
|
u_long *a_cookies;
|
|
int a_ncookies;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
|
|
if (vp->v_type != VDIR)
|
|
return (EPERM);
|
|
#ifdef notnow
|
|
if (ap->a_ncookies) {
|
|
printf("smbfs_readdir: no support for cookies now...");
|
|
return (EOPNOTSUPP);
|
|
}
|
|
#endif
|
|
return (smbfs_readvnode(vp, ap->a_uio, ap->a_cred));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
int
|
|
smbfs_fsync(v)
|
|
void *v;
|
|
{
|
|
/*return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_p, 1));*/
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
smbfs_print(v)
|
|
void *v;
|
|
{
|
|
struct vop_print_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
|
|
printf("tag VT_SMBFS, name = %.*s, parent = %p, open = %d\n",
|
|
(int)np->n_nmlen, np->n_name,
|
|
np->n_parent ? SMBTOV(np->n_parent) : NULL,
|
|
(np->n_flag & NOPEN) != 0);
|
|
printf(" ");
|
|
lockmgr_printinfo(vp->v_vnlock);
|
|
printf("\n");
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
smbfs_pathconf(v)
|
|
void *v;
|
|
{
|
|
struct vop_pathconf_args /* {
|
|
struct vnode *vp;
|
|
int a_name;
|
|
register_t *a_retval;
|
|
} */ *ap = v;
|
|
struct smbmount *smp = VFSTOSMBFS(VTOVFS(ap->a_vp));
|
|
struct smb_vc *vcp = SSTOVC(smp->sm_share);
|
|
register_t *retval = ap->a_retval;
|
|
int error = 0;
|
|
|
|
switch (ap->a_name) {
|
|
case _PC_PIPE_BUF:
|
|
*retval = PIPE_BUF;
|
|
break;
|
|
case _PC_SYNC_IO:
|
|
*retval = 1;
|
|
break;
|
|
case _PC_LINK_MAX:
|
|
*retval = 0;
|
|
break;
|
|
case _PC_NAME_MAX:
|
|
*retval = (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
|
|
break;
|
|
case _PC_PATH_MAX:
|
|
*retval = 800; /* XXX: a correct one ? */
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
smbfs_strategy(v)
|
|
void *v;
|
|
{
|
|
struct vop_strategy_args /* {
|
|
struct vnode *a_vp;
|
|
struct buf *a_bp;
|
|
} */ *ap = v;
|
|
struct buf *bp = ap->a_bp;
|
|
struct ucred *cr;
|
|
struct proc *p;
|
|
int error = 0;
|
|
|
|
SMBVDEBUG("\n");
|
|
if ((bp->b_flags & (B_PHYS|B_ASYNC)) == (B_PHYS|B_ASYNC))
|
|
panic("smbfs physio/async");
|
|
if (bp->b_flags & B_ASYNC)
|
|
p = NULL;
|
|
else
|
|
p = curproc; /* XXX */
|
|
|
|
cr = p->p_ucred; /* XXX */
|
|
|
|
if ((bp->b_flags & B_ASYNC) == 0)
|
|
error = smbfs_doio(bp, cr, p);
|
|
|
|
return (error);
|
|
}
|
|
|
|
#ifndef __NetBSD__
|
|
static char smbfs_atl[] = "rhsvda";
|
|
static int
|
|
smbfs_getextattr(struct vop_getextattr_args *ap)
|
|
/* {
|
|
IN struct vnode *a_vp;
|
|
IN char *a_name;
|
|
INOUT struct uio *a_uio;
|
|
IN struct ucred *a_cred;
|
|
IN struct proc *p;
|
|
};
|
|
*/
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct proc *p = ap->a_p;
|
|
struct ucred *cred = ap->a_cred;
|
|
struct uio *uio = ap->a_uio;
|
|
const char *name = ap->a_name;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
struct vattr vattr;
|
|
char buf[10];
|
|
int i, attr, error;
|
|
|
|
error = VOP_ACCESS(vp, VREAD, cred, td);
|
|
if (error)
|
|
return error;
|
|
error = VOP_GETATTR(vp, &vattr, cred, td);
|
|
if (error)
|
|
return error;
|
|
if (strcmp(name, "dosattr") == 0) {
|
|
attr = np->n_dosattr;
|
|
for (i = 0; i < 6; i++, attr >>= 1)
|
|
buf[i] = (attr & 1) ? smbfs_atl[i] : '-';
|
|
buf[i] = 0;
|
|
error = uiomove(buf, i, uio);
|
|
|
|
} else
|
|
error = EINVAL;
|
|
return error;
|
|
}
|
|
#endif /* !__NetBSD__ */
|
|
|
|
/*
|
|
* Since we expected to support F_GETLK (and SMB protocol has no such function),
|
|
* it is necessary to use lf_advlock(). It would be nice if this function had
|
|
* a callback mechanism because it will help to improve a level of consistency.
|
|
*/
|
|
int
|
|
smbfs_advlock(v)
|
|
void *v;
|
|
{
|
|
struct vop_advlock_args /* {
|
|
struct vnode *a_vp;
|
|
caddr_t a_id;
|
|
int a_op;
|
|
struct flock *a_fl;
|
|
int a_flags;
|
|
} */ *ap = v;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
struct flock *fl = ap->a_fl;
|
|
struct proc *p = curproc;
|
|
struct smb_cred scred;
|
|
u_quad_t size;
|
|
off_t start, end, oadd;
|
|
int error, lkop;
|
|
|
|
if (vp->v_type == VDIR) {
|
|
/*
|
|
* SMB protocol have no support for directory locking.
|
|
* Although locks can be processed on local machine, I don't
|
|
* think that this is a good idea, because some programs
|
|
* can work wrong assuming directory is locked. So, we just
|
|
* return 'operation not supported'.
|
|
*/
|
|
return EOPNOTSUPP;
|
|
}
|
|
size = np->n_size;
|
|
switch (fl->l_whence) {
|
|
|
|
case SEEK_SET:
|
|
case SEEK_CUR:
|
|
start = fl->l_start;
|
|
break;
|
|
|
|
case SEEK_END:
|
|
#ifndef __NetBSD__
|
|
if (size > OFF_MAX ||
|
|
(fl->l_start > 0 && size > OFF_MAX - fl->l_start))
|
|
return EOVERFLOW;
|
|
#endif
|
|
start = size + fl->l_start;
|
|
break;
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
if (start < 0)
|
|
return EINVAL;
|
|
if (fl->l_len < 0) {
|
|
if (start == 0)
|
|
return EINVAL;
|
|
end = start - 1;
|
|
start += fl->l_len;
|
|
if (start < 0)
|
|
return EINVAL;
|
|
} else if (fl->l_len == 0)
|
|
end = -1;
|
|
else {
|
|
oadd = fl->l_len - 1;
|
|
#ifndef __NetBSD__
|
|
if (oadd > OFF_MAX - start)
|
|
return EOVERFLOW;
|
|
#endif
|
|
end = start + oadd;
|
|
}
|
|
smb_makescred(&scred, p, p ? p->p_ucred : NULL);
|
|
switch (ap->a_op) {
|
|
case F_SETLK:
|
|
switch (fl->l_type) {
|
|
case F_WRLCK:
|
|
lkop = SMB_LOCK_EXCL;
|
|
break;
|
|
case F_RDLCK:
|
|
lkop = SMB_LOCK_SHARED;
|
|
break;
|
|
case F_UNLCK:
|
|
lkop = SMB_LOCK_RELEASE;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
error = lf_advlock(ap, &np->n_lockf, size);
|
|
if (error)
|
|
break;
|
|
/*
|
|
* The ID we use for smb_lock is passed as PID to SMB
|
|
* server. It MUST agree with PID as setup in basic
|
|
* SMB header in later write requests, otherwise SMB server
|
|
* returns EDEADLK. See also smb_rq_new() on SMB header setup.
|
|
*/
|
|
error = smbfs_smb_lock(np, lkop,(caddr_t)1, start, end, &scred);
|
|
if (error) {
|
|
ap->a_op = F_UNLCK;
|
|
lf_advlock(ap, &np->n_lockf, size);
|
|
}
|
|
break;
|
|
case F_UNLCK:
|
|
lf_advlock(ap, &np->n_lockf, size);
|
|
error = smbfs_smb_lock(np, SMB_LOCK_RELEASE, ap->a_id, start, end, &scred);
|
|
break;
|
|
case F_GETLK:
|
|
error = lf_advlock(ap, &np->n_lockf, size);
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
smbfs_pathcheck(struct smbmount *smp, const char *name, int nmlen)
|
|
{
|
|
static const char * const badchars = "*/\\:<>;?";
|
|
static const char * const badchars83 = " +|,[]=";
|
|
const char *cp;
|
|
int i;
|
|
|
|
if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
|
|
/*
|
|
* Name should conform 8.3 format
|
|
*/
|
|
if (nmlen > 12)
|
|
return (ENAMETOOLONG);
|
|
|
|
if ((cp = memchr(name, '.', nmlen)) == NULL
|
|
|| cp == name || (cp - name) > 8
|
|
|| (cp = memchr(cp + 1, '.', nmlen - (cp - name))) != NULL)
|
|
goto bad;
|
|
|
|
for (cp = name, i = 0; i < nmlen; i++, cp++)
|
|
if (strchr(badchars83, *cp) != NULL)
|
|
goto bad;
|
|
}
|
|
|
|
for (cp = name, i = 0; i < nmlen; i++, cp++)
|
|
if (strchr(badchars, *cp) != NULL)
|
|
goto bad;
|
|
|
|
/* name is fine */
|
|
return (0);
|
|
|
|
bad:
|
|
return (ENOENT);
|
|
}
|
|
|
|
/*
|
|
* Things go even weird without fixed inode numbers...
|
|
*/
|
|
int
|
|
smbfs_lookup(v)
|
|
void *v;
|
|
{
|
|
struct vop_lookup_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap = v;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct vnode **vpp = ap->a_vpp;
|
|
struct mount *mp = dvp->v_mount;
|
|
struct smbnode *dnp;
|
|
struct smbfattr fattr;
|
|
struct smb_cred scred;
|
|
const char *name = cnp->cn_nameptr;
|
|
int flags = cnp->cn_flags;
|
|
int nameiop = cnp->cn_nameiop;
|
|
int nmlen = cnp->cn_namelen;
|
|
int lockparent, wantparent, error, islastcn, isdot;
|
|
|
|
/*
|
|
* Check accessiblity of directory.
|
|
*/
|
|
error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_proc);
|
|
if (error)
|
|
return (error);
|
|
|
|
if ((cnp->cn_flags & ISLASTCN) &&
|
|
(dvp->v_mount->mnt_flag & MNT_RDONLY) &&
|
|
(cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
|
|
return (EROFS);
|
|
|
|
SMBVDEBUG("%d '%.*s' in '%.*s' id=d\n", nameiop, nmlen, name,
|
|
(int) VTOSMB(dvp)->n_nmlen, VTOSMB(dvp)->n_name);
|
|
|
|
islastcn = flags & ISLASTCN;
|
|
lockparent = flags & LOCKPARENT;
|
|
|
|
/*
|
|
* Before tediously performing a linear scan of the directory,
|
|
* check the name cache to see if the directory/name pair
|
|
* we are looking for is known already.
|
|
* If the directory/name pair is found in the name cache,
|
|
* we have to ensure the directory has not changed from
|
|
* the time the cache entry has been created. If it has,
|
|
* the cache entry has to be ignored.
|
|
*/
|
|
if ((error = cache_lookup(dvp, vpp, cnp)) >= 0) {
|
|
struct vattr vattr;
|
|
struct vnode *newvp;
|
|
int err2;
|
|
|
|
if (error && error != ENOENT) {
|
|
*vpp = NULLVP;
|
|
return error;
|
|
}
|
|
|
|
if (cnp->cn_flags & PDIRUNLOCK) {
|
|
err2 = vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
|
|
if (err2 != 0) {
|
|
*vpp = NULLVP;
|
|
return err2;
|
|
}
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
}
|
|
|
|
err2 = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_proc);
|
|
if (err2 != 0) {
|
|
if (error == 0) {
|
|
if (*vpp != dvp)
|
|
vput(*vpp);
|
|
else
|
|
vrele(*vpp);
|
|
}
|
|
*vpp = NULLVP;
|
|
return err2;
|
|
}
|
|
|
|
if (error == ENOENT) {
|
|
if (!VOP_GETATTR(dvp, &vattr, cnp->cn_cred,
|
|
cnp->cn_proc) && vattr.va_mtime.tv_sec ==
|
|
VTOSMB(dvp)->n_nctime)
|
|
return ENOENT;
|
|
cache_purge(dvp);
|
|
VTOSMB(dvp)->n_nctime = 0;
|
|
goto dolookup;
|
|
}
|
|
|
|
newvp = *vpp;
|
|
if (!VOP_GETATTR(newvp, &vattr, cnp->cn_cred, cnp->cn_proc)
|
|
&& vattr.va_ctime.tv_sec == VTOSMB(newvp)->n_ctime)
|
|
{
|
|
/* nfsstats.lookupcache_hits++; */
|
|
if (cnp->cn_nameiop != LOOKUP && islastcn)
|
|
cnp->cn_flags |= SAVENAME;
|
|
|
|
if ((!lockparent || !islastcn) &&
|
|
newvp != dvp) {
|
|
VOP_UNLOCK(dvp, 0);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
cache_purge(newvp);
|
|
if (newvp != dvp)
|
|
vput(newvp);
|
|
else
|
|
vrele(newvp);
|
|
*vpp = NULLVP;
|
|
}
|
|
|
|
dolookup:
|
|
|
|
/* ensure the name is sane */
|
|
if (nameiop != LOOKUP) {
|
|
error = smbfs_pathcheck(VFSTOSMBFS(mp), cnp->cn_nameptr,
|
|
cnp->cn_namelen);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
|
|
wantparent = flags & (LOCKPARENT|WANTPARENT);
|
|
dnp = VTOSMB(dvp);
|
|
isdot = (nmlen == 1 && name[0] == '.');
|
|
|
|
/*
|
|
* entry is not in the cache or has been expired
|
|
*/
|
|
smb_makescred(&scred, cnp->cn_proc, cnp->cn_cred);
|
|
if (flags & ISDOTDOT)
|
|
error = smbfs_smb_lookup(dnp->n_parent, NULL, 0, &fattr, &scred);
|
|
else
|
|
error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
|
|
|
|
if (error) {
|
|
/* Not found */
|
|
|
|
if (error != ENOENT)
|
|
return (error);
|
|
|
|
/*
|
|
* Handle RENAME or CREATE case...
|
|
*/
|
|
if ((nameiop == CREATE || nameiop == RENAME) && islastcn) {
|
|
/*
|
|
* Access for write is interpreted as allowing
|
|
* creation of files in the directory.
|
|
*/
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc);
|
|
if (error)
|
|
return (error);
|
|
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent) {
|
|
VOP_UNLOCK(dvp, 0);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
return (EJUSTRETURN);
|
|
}
|
|
|
|
/*
|
|
* Insert name into cache (as non-existent) if appropriate.
|
|
*/
|
|
if ((cnp->cn_flags & MAKEENTRY) && nameiop != CREATE)
|
|
cache_enter(dvp, *vpp, cnp);
|
|
|
|
return (ENOENT);
|
|
}
|
|
|
|
/* Found */
|
|
|
|
/* Handle RENAME case... */
|
|
if (nameiop == RENAME && islastcn && wantparent) {
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_proc);
|
|
if (error)
|
|
return (error);
|
|
|
|
if (isdot)
|
|
return (EISDIR);
|
|
if (flags & ISDOTDOT)
|
|
VOP_UNLOCK(dvp, 0);
|
|
error = smbfs_nget(mp, dvp, name, nmlen, &fattr, vpp);
|
|
if (flags & ISDOTDOT)
|
|
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
|
|
if (error)
|
|
return (error);
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent) {
|
|
VOP_UNLOCK(dvp, 0);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
if (isdot) {
|
|
/*
|
|
* "." lookup
|
|
*/
|
|
VREF(dvp);
|
|
*vpp = dvp;
|
|
} else if (flags & ISDOTDOT) {
|
|
/*
|
|
* ".." lookup
|
|
*/
|
|
VOP_UNLOCK(dvp, 0);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
|
|
error = smbfs_nget(mp, dvp, name, nmlen, NULL, vpp);
|
|
if (error) {
|
|
if (vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY) == 0)
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
return error;
|
|
}
|
|
|
|
if (lockparent && islastcn) {
|
|
if ((error = vn_lock(dvp, LK_EXCLUSIVE))) {
|
|
vput(*vpp);
|
|
*vpp = NULLVP;
|
|
return error;
|
|
}
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
}
|
|
} else {
|
|
/*
|
|
* Other lookups.
|
|
*/
|
|
error = smbfs_nget(mp, dvp, name, nmlen, &fattr, vpp);
|
|
if (error)
|
|
return error;
|
|
if (!lockparent || !islastcn) {
|
|
VOP_UNLOCK(dvp, 0);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
}
|
|
|
|
if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
|
|
cnp->cn_flags |= SAVENAME;
|
|
|
|
if ((cnp->cn_flags & MAKEENTRY)) {
|
|
if (!error && (cnp->cn_nameiop != DELETE || !islastcn)) {
|
|
VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_mtime.tv_sec;
|
|
cache_enter(dvp, *vpp, cnp);
|
|
} else if (error == ENOENT && cnp->cn_nameiop != CREATE) {
|
|
VTOSMB(*vpp)->n_nctime = VTOSMB(*vpp)->n_mtime.tv_sec;
|
|
cache_enter(dvp, *vpp, cnp);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|