44f3878ecb
good for this file. This should allow read only access to file which is already opened on server.
1346 lines
33 KiB
C
1346 lines
33 KiB
C
/*
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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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* $FreeBSD$
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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/namei.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/bio.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 <vm/vm.h>
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#include <vm/vm_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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/*
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* Prototypes for SMBFS vnode operations
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*/
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static int smbfs_create(struct vop_create_args *);
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static int smbfs_mknod(struct vop_mknod_args *);
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static int smbfs_open(struct vop_open_args *);
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static int smbfs_close(struct vop_close_args *);
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static int smbfs_access(struct vop_access_args *);
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static int smbfs_getattr(struct vop_getattr_args *);
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static int smbfs_setattr(struct vop_setattr_args *);
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static int smbfs_read(struct vop_read_args *);
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static int smbfs_write(struct vop_write_args *);
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static int smbfs_fsync(struct vop_fsync_args *);
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static int smbfs_remove(struct vop_remove_args *);
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static int smbfs_link(struct vop_link_args *);
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static int smbfs_lookup(struct vop_lookup_args *);
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static int smbfs_rename(struct vop_rename_args *);
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static int smbfs_mkdir(struct vop_mkdir_args *);
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static int smbfs_rmdir(struct vop_rmdir_args *);
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static int smbfs_symlink(struct vop_symlink_args *);
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static int smbfs_readdir(struct vop_readdir_args *);
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static int smbfs_strategy(struct vop_strategy_args *);
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static int smbfs_print(struct vop_print_args *);
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static int smbfs_pathconf(struct vop_pathconf_args *ap);
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static int smbfs_advlock(struct vop_advlock_args *);
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#ifndef FB_RELENG3
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static int smbfs_getextattr(struct vop_getextattr_args *ap);
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#endif
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vop_t **smbfs_vnodeop_p;
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static struct vnodeopv_entry_desc smbfs_vnodeop_entries[] = {
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{ &vop_default_desc, (vop_t *) vop_defaultop },
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{ &vop_access_desc, (vop_t *) smbfs_access },
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{ &vop_advlock_desc, (vop_t *) smbfs_advlock },
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{ &vop_close_desc, (vop_t *) smbfs_close },
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{ &vop_create_desc, (vop_t *) smbfs_create },
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{ &vop_fsync_desc, (vop_t *) smbfs_fsync },
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{ &vop_getattr_desc, (vop_t *) smbfs_getattr },
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{ &vop_getpages_desc, (vop_t *) smbfs_getpages },
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{ &vop_inactive_desc, (vop_t *) smbfs_inactive },
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{ &vop_ioctl_desc, (vop_t *) smbfs_ioctl },
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{ &vop_islocked_desc, (vop_t *) vop_stdislocked },
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{ &vop_link_desc, (vop_t *) smbfs_link },
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{ &vop_lock_desc, (vop_t *) vop_stdlock },
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{ &vop_lookup_desc, (vop_t *) smbfs_lookup },
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{ &vop_mkdir_desc, (vop_t *) smbfs_mkdir },
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{ &vop_mknod_desc, (vop_t *) smbfs_mknod },
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{ &vop_open_desc, (vop_t *) smbfs_open },
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{ &vop_pathconf_desc, (vop_t *) smbfs_pathconf },
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{ &vop_print_desc, (vop_t *) smbfs_print },
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{ &vop_putpages_desc, (vop_t *) smbfs_putpages },
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{ &vop_read_desc, (vop_t *) smbfs_read },
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{ &vop_readdir_desc, (vop_t *) smbfs_readdir },
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{ &vop_reclaim_desc, (vop_t *) smbfs_reclaim },
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{ &vop_remove_desc, (vop_t *) smbfs_remove },
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{ &vop_rename_desc, (vop_t *) smbfs_rename },
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{ &vop_rmdir_desc, (vop_t *) smbfs_rmdir },
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{ &vop_setattr_desc, (vop_t *) smbfs_setattr },
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{ &vop_strategy_desc, (vop_t *) smbfs_strategy },
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{ &vop_symlink_desc, (vop_t *) smbfs_symlink },
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{ &vop_unlock_desc, (vop_t *) vop_stdunlock },
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{ &vop_write_desc, (vop_t *) smbfs_write },
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#ifndef FB_RELENG3
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{ &vop_getextattr_desc, (vop_t *) smbfs_getextattr },
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/* { &vop_setextattr_desc, (vop_t *) smbfs_setextattr },*/
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#endif
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{ NULL, NULL }
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};
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static struct vnodeopv_desc smbfs_vnodeop_opv_desc =
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{ &smbfs_vnodeop_p, smbfs_vnodeop_entries };
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VNODEOP_SET(smbfs_vnodeop_opv_desc);
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static int
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smbfs_access(ap)
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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 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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struct ucred *cred = ap->a_cred;
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u_int mode = ap->a_mode;
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struct smbmount *smp = VTOSMBFS(vp);
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int error = 0;
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SMBVDEBUG("\n");
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if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY)) {
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switch (vp->v_type) {
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case VREG: case VDIR: case VLNK:
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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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if (cred->cr_uid == 0)
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return 0;
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if (cred->cr_uid != smp->sm_args.uid) {
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mode >>= 3;
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if (!groupmember(smp->sm_args.gid, cred))
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mode >>= 3;
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}
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error = (((vp->v_type == VREG) ? smp->sm_args.file_mode : smp->sm_args.dir_mode) & mode) == mode ? 0 : EACCES;
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return error;
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}
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/* ARGSUSED */
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static int
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smbfs_open(ap)
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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 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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struct smbnode *np = VTOSMB(vp);
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struct smb_cred scred;
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struct vattr vattr;
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int mode = ap->a_mode;
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int error, accmode;
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SMBVDEBUG("%s,%d\n", np->n_name, np->n_opencount);
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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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np->n_opencount++;
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return 0;
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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_td, 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_td);
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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_td);
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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_td, 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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if (np->n_opencount) {
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np->n_opencount++;
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return 0;
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}
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/*
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* Use DENYNONE to give unixy semantics of permitting
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* everything not forbidden by permissions. Ie denial
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* is up to server with clients/openers needing to use
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* advisory locks for further control.
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*/
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accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
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if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
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accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW;
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smb_makescred(&scred, ap->a_td, ap->a_cred);
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error = smbfs_smb_open(np, accmode, &scred);
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if (error) {
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if (mode & FWRITE)
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return EACCES;
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else if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
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accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
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error = smbfs_smb_open(np, accmode, &scred);
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}
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}
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if (!error) {
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np->n_opencount++;
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}
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smbfs_attr_cacheremove(vp);
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return error;
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}
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static int
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smbfs_closel(struct vop_close_args *ap)
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{
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struct vnode *vp = ap->a_vp;
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struct smbnode *np = VTOSMB(vp);
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struct thread *td = ap->a_td;
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struct smb_cred scred;
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struct vattr vattr;
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int error;
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SMBVDEBUG("name=%s, pid=%d, c=%d\n",np->n_name, td->td_pid, np->n_opencount);
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smb_makescred(&scred, td, ap->a_cred);
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if (np->n_opencount == 0) {
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if (vp->v_type != VDIR)
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SMBERROR("Negative opencount\n");
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return 0;
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}
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np->n_opencount--;
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if (vp->v_type == VDIR) {
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if (np->n_opencount)
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return 0;
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if (np->n_dirseq) {
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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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error = 0;
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} else {
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error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, td, 1);
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if (np->n_opencount)
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return error;
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VOP_GETATTR(vp, &vattr, ap->a_cred, td);
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error = smbfs_smb_close(np->n_mount->sm_share, np->n_fid,
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&np->n_mtime, &scred);
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}
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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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* XXX: VOP_CLOSE() usually called without lock held which is suck. Here we
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* do some heruistic to determine if vnode should be locked.
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*/
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static int
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smbfs_close(ap)
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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 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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struct thread *td = ap->a_td;
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int error, dolock;
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VI_LOCK(vp);
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dolock = (vp->v_iflag & VI_XLOCK) == 0;
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if (dolock)
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vn_lock(vp, LK_EXCLUSIVE | LK_RETRY | LK_INTERLOCK, td);
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else
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VI_UNLOCK(vp);
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error = smbfs_closel(ap);
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if (dolock)
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VOP_UNLOCK(vp, 0, td);
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return error;
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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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static int
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smbfs_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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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_int32_t oldsize;
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int error;
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SMBVDEBUG("%lx: '%s' %d\n", (long)vp, np->n_name, (vp->v_vflag & VV_ROOT) != 0);
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error = smbfs_attr_cachelookup(vp, va);
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if (!error)
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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_td, 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_opencount)
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np->n_size = oldsize;
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return 0;
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}
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static int
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smbfs_setattr(ap)
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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 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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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_td, 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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vnode_pager_setsize(vp, (u_long)vap->va_size);
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tsize = np->n_size;
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np->n_size = vap->va_size;
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if (np->n_opencount == 0) {
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error = smbfs_smb_open(np,
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SMB_SM_DENYNONE|SMB_AM_OPENRW,
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&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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vnode_pager_setsize(vp, (u_long)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 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_opencount == 0) {
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if (vcp->vc_flags & SMBV_WIN95) {
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error = VOP_OPEN(vp, FWRITE, ap->a_cred, ap->a_td);
|
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if (!error) {
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/* error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
|
|
VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);*/
|
|
if (mtime)
|
|
np->n_mtime = *mtime;
|
|
VOP_CLOSE(vp, FWRITE, ap->a_cred, ap->a_td);
|
|
}
|
|
} else if ((vcp->vc_sopt.sv_caps & 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 (vcp->vc_sopt.sv_caps & 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 {
|
|
/*
|
|
* I have no idea how to handle this for core
|
|
* level servers. The possible solution is to
|
|
* update mtime after file is closed.
|
|
*/
|
|
SMBERROR("can't update times on an opened file\n");
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* 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_td);
|
|
np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
|
|
return error;
|
|
}
|
|
/*
|
|
* smbfs_read call.
|
|
*/
|
|
static int
|
|
smbfs_read(ap)
|
|
struct vop_read_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
int a_ioflag;
|
|
struct ucred *a_cred;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct uio *uio = ap->a_uio;
|
|
|
|
SMBVDEBUG("\n");
|
|
if (vp->v_type != VREG && vp->v_type != VDIR)
|
|
return EPERM;
|
|
return smbfs_readvnode(vp, uio, ap->a_cred);
|
|
}
|
|
|
|
static int
|
|
smbfs_write(ap)
|
|
struct vop_write_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
int a_ioflag;
|
|
struct ucred *a_cred;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct uio *uio = ap->a_uio;
|
|
|
|
SMBVDEBUG("%d,ofs=%d,sz=%d\n",vp->v_type, (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.
|
|
*/
|
|
static int
|
|
smbfs_create(ap)
|
|
struct vop_create_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct vattr *vap = ap->a_vap;
|
|
struct vnode **vpp=ap->a_vpp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct smbnode *dnp = VTOSMB(dvp);
|
|
struct vnode *vp;
|
|
struct vattr vattr;
|
|
struct smbfattr fattr;
|
|
struct smb_cred scred;
|
|
char *name = cnp->cn_nameptr;
|
|
int nmlen = cnp->cn_namelen;
|
|
int error;
|
|
|
|
|
|
SMBVDEBUG("\n");
|
|
*vpp = NULL;
|
|
if (vap->va_type != VREG)
|
|
return EOPNOTSUPP;
|
|
if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread)))
|
|
return error;
|
|
smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
|
|
|
|
error = smbfs_smb_create(dnp, name, nmlen, &scred);
|
|
if (error)
|
|
return error;
|
|
error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
|
|
if (error)
|
|
return error;
|
|
error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, &vp);
|
|
if (error)
|
|
return error;
|
|
*vpp = vp;
|
|
if (cnp->cn_flags & MAKEENTRY)
|
|
cache_enter(dvp, vp, cnp);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
smbfs_remove(ap)
|
|
struct vop_remove_args /* {
|
|
struct vnodeop_desc *a_desc;
|
|
struct vnode * a_dvp;
|
|
struct vnode * a_vp;
|
|
struct componentname * a_cnp;
|
|
} */ *ap;
|
|
{
|
|
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_opencount || vp->v_usecount != 1)
|
|
return EPERM;
|
|
smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
|
|
error = smbfs_smb_delete(np, &scred);
|
|
cache_purge(vp);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* smbfs_file rename call
|
|
*/
|
|
static int
|
|
smbfs_rename(ap)
|
|
struct vop_rename_args /* {
|
|
struct vnode *a_fdvp;
|
|
struct vnode *a_fvp;
|
|
struct componentname *a_fcnp;
|
|
struct vnode *a_tdvp;
|
|
struct vnode *a_tvp;
|
|
struct componentname *a_tcnp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *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;
|
|
u_int16_t flags = 6;
|
|
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;
|
|
}
|
|
flags = 0x10; /* verify all writes */
|
|
if (fvp->v_type == VDIR) {
|
|
flags |= 2;
|
|
} else if (fvp->v_type == VREG) {
|
|
flags |= 1;
|
|
} else
|
|
return EINVAL;
|
|
smb_makescred(&scred, tcnp->cn_thread, 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;
|
|
}
|
|
error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
|
|
tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
|
|
}
|
|
|
|
if (fvp->v_type == VDIR) {
|
|
if (tvp != NULL && tvp->v_type == VDIR)
|
|
cache_purge(tdvp);
|
|
cache_purge(fdvp);
|
|
}
|
|
out:
|
|
if (tdvp == tvp)
|
|
vrele(tdvp);
|
|
else
|
|
vput(tdvp);
|
|
if (tvp)
|
|
vput(tvp);
|
|
vrele(fdvp);
|
|
vrele(fvp);
|
|
smbfs_attr_cacheremove(fdvp);
|
|
smbfs_attr_cacheremove(tdvp);
|
|
#ifdef possible_mistake
|
|
vgone(fvp);
|
|
if (tvp)
|
|
vgone(tvp);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* somtime it will come true...
|
|
*/
|
|
static int
|
|
smbfs_link(ap)
|
|
struct vop_link_args /* {
|
|
struct vnode *a_tdvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
/*
|
|
* smbfs_symlink link create call.
|
|
* Sometime it will be functional...
|
|
*/
|
|
static int
|
|
smbfs_symlink(ap)
|
|
struct vop_symlink_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
char *a_target;
|
|
} */ *ap;
|
|
{
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
smbfs_mknod(ap)
|
|
struct vop_mknod_args /* {
|
|
} */ *ap;
|
|
{
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
smbfs_mkdir(ap)
|
|
struct vop_mkdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap;
|
|
{
|
|
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 vattr vattr;
|
|
struct smb_cred scred;
|
|
struct smbfattr fattr;
|
|
char *name = cnp->cn_nameptr;
|
|
int len = cnp->cn_namelen;
|
|
int error;
|
|
|
|
if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread))) {
|
|
return error;
|
|
}
|
|
if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.'))))
|
|
return EEXIST;
|
|
smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
|
|
error = smbfs_smb_mkdir(dnp, name, len, &scred);
|
|
if (error)
|
|
return error;
|
|
error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
|
|
if (error)
|
|
return error;
|
|
error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
|
|
if (error)
|
|
return error;
|
|
*ap->a_vpp = vp;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* smbfs_remove directory call
|
|
*/
|
|
static int
|
|
smbfs_rmdir(ap)
|
|
struct vop_rmdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
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)
|
|
return EINVAL;
|
|
|
|
smb_makescred(&scred, cnp->cn_thread, cnp->cn_cred);
|
|
error = smbfs_smb_rmdir(np, &scred);
|
|
dnp->n_flag |= NMODIFIED;
|
|
smbfs_attr_cacheremove(dvp);
|
|
/* cache_purge(dvp);*/
|
|
cache_purge(vp);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* smbfs_readdir call
|
|
*/
|
|
static int
|
|
smbfs_readdir(ap)
|
|
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;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct uio *uio = ap->a_uio;
|
|
int error;
|
|
|
|
if (vp->v_type != VDIR)
|
|
return (EPERM);
|
|
#ifdef notnow
|
|
if (ap->a_ncookies) {
|
|
printf("smbfs_readdir: no support for cookies now...");
|
|
return (EOPNOTSUPP);
|
|
}
|
|
#endif
|
|
error = smbfs_readvnode(vp, uio, ap->a_cred);
|
|
return error;
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
smbfs_fsync(ap)
|
|
struct vop_fsync_args /* {
|
|
struct vnodeop_desc *a_desc;
|
|
struct vnode * a_vp;
|
|
struct ucred * a_cred;
|
|
int a_waitfor;
|
|
struct thread * a_td;
|
|
} */ *ap;
|
|
{
|
|
/* return (smb_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
|
|
return (0);
|
|
}
|
|
|
|
static
|
|
int smbfs_print (ap)
|
|
struct vop_print_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
|
|
if (np == NULL) {
|
|
printf("no smbnode data\n");
|
|
return (0);
|
|
}
|
|
printf("tag %s, name = %s, parent = %p, opencount = %d",
|
|
vp->v_tag, np->n_name, np->n_parent ? SMBTOV(np->n_parent) : NULL,
|
|
np->n_opencount);
|
|
lockmgr_printinfo(&vp->v_lock);
|
|
printf("\n");
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
smbfs_pathconf (ap)
|
|
struct vop_pathconf_args /* {
|
|
struct vnode *vp;
|
|
int name;
|
|
register_t *retval;
|
|
} */ *ap;
|
|
{
|
|
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_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;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
smbfs_strategy (ap)
|
|
struct vop_strategy_args /* {
|
|
struct buf *a_bp
|
|
} */ *ap;
|
|
{
|
|
struct buf *bp=ap->a_bp;
|
|
struct ucred *cr;
|
|
struct thread *td;
|
|
int error = 0;
|
|
|
|
SMBVDEBUG("\n");
|
|
if (bp->b_flags & B_PHYS)
|
|
panic("smbfs physio");
|
|
if (bp->b_flags & B_ASYNC)
|
|
td = (struct thread *)0;
|
|
else
|
|
td = curthread; /* XXX */
|
|
if (bp->b_iocmd == BIO_READ)
|
|
cr = bp->b_rcred;
|
|
else
|
|
cr = bp->b_wcred;
|
|
|
|
if ((bp->b_flags & B_ASYNC) == 0 )
|
|
error = smbfs_doio(bp, cr, td);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
smbfs_ioctl(ap)
|
|
struct vop_ioctl_args /* {
|
|
struct vnode *a_vp;
|
|
u_long a_command;
|
|
caddr_t a_data;
|
|
int fflag;
|
|
struct ucred *cred;
|
|
struct thread *td;
|
|
} */ *ap;
|
|
{
|
|
return EINVAL;
|
|
}
|
|
|
|
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 thread *a_td;
|
|
};
|
|
*/
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct thread *td = ap->a_td;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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(ap)
|
|
struct vop_advlock_args /* {
|
|
struct vnode *a_vp;
|
|
caddr_t a_id;
|
|
int a_op;
|
|
struct flock *a_fl;
|
|
int a_flags;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct smbnode *np = VTOSMB(vp);
|
|
struct flock *fl = ap->a_fl;
|
|
caddr_t id = (caddr_t)1 /* ap->a_id */;
|
|
/* int flags = ap->a_flags;*/
|
|
struct thread *td = curthread;
|
|
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:
|
|
if (size > OFF_MAX ||
|
|
(fl->l_start > 0 && size > OFF_MAX - fl->l_start))
|
|
return EOVERFLOW;
|
|
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;
|
|
if (oadd > OFF_MAX - start)
|
|
return EOVERFLOW;
|
|
end = start + oadd;
|
|
}
|
|
smb_makescred(&scred, td, td->td_ucred);
|
|
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;
|
|
lkop = SMB_LOCK_EXCL;
|
|
error = smbfs_smb_lock(np, lkop, id, 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, 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, int nameiop)
|
|
{
|
|
static const char *badchars = "*/\[]:<>=;?";
|
|
static const char *badchars83 = " +|,";
|
|
const char *cp;
|
|
int i, error;
|
|
|
|
if (nameiop == LOOKUP)
|
|
return 0;
|
|
error = ENOENT;
|
|
if (SMB_DIALECT(SSTOVC(smp->sm_share)) < SMB_DIALECT_LANMAN2_0) {
|
|
/*
|
|
* Name should conform 8.3 format
|
|
*/
|
|
if (nmlen > 12)
|
|
return ENAMETOOLONG;
|
|
cp = index(name, '.');
|
|
if (cp == NULL)
|
|
return error;
|
|
if (cp == name || (cp - name) > 8)
|
|
return error;
|
|
cp = index(cp + 1, '.');
|
|
if (cp != NULL)
|
|
return error;
|
|
for (cp = name, i = 0; i < nmlen; i++, cp++)
|
|
if (index(badchars83, *cp) != NULL)
|
|
return error;
|
|
}
|
|
for (cp = name, i = 0; i < nmlen; i++, cp++)
|
|
if (index(badchars, *cp) != NULL)
|
|
return error;
|
|
return 0;
|
|
}
|
|
|
|
#ifndef PDIRUNLOCK
|
|
#define PDIRUNLOCK 0
|
|
#endif
|
|
|
|
/*
|
|
* Things go even weird without fixed inode numbers...
|
|
*/
|
|
int
|
|
smbfs_lookup(ap)
|
|
struct vop_lookup_args /* {
|
|
struct vnodeop_desc *a_desc;
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct thread *td = cnp->cn_thread;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct vnode **vpp = ap->a_vpp;
|
|
struct vnode *vp;
|
|
struct smbmount *smp;
|
|
struct mount *mp = dvp->v_mount;
|
|
struct smbnode *dnp;
|
|
struct smbfattr fattr, *fap;
|
|
struct smb_cred scred;
|
|
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;
|
|
|
|
SMBVDEBUG("\n");
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
if (dvp->v_type != VDIR)
|
|
return ENOTDIR;
|
|
if ((flags & ISDOTDOT) && (dvp->v_vflag & VV_ROOT)) {
|
|
SMBFSERR("invalid '..'\n");
|
|
return EIO;
|
|
}
|
|
#ifdef SMB_VNODE_DEBUG
|
|
{
|
|
char *cp, c;
|
|
|
|
cp = name + nmlen;
|
|
c = *cp;
|
|
*cp = 0;
|
|
SMBVDEBUG("%d '%s' in '%s' id=d\n", nameiop, name,
|
|
VTOSMB(dvp)->n_name);
|
|
*cp = c;
|
|
}
|
|
#endif
|
|
islastcn = flags & ISLASTCN;
|
|
if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
|
|
return EROFS;
|
|
if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)) != 0)
|
|
return error;
|
|
lockparent = flags & LOCKPARENT;
|
|
wantparent = flags & (LOCKPARENT|WANTPARENT);
|
|
smp = VFSTOSMBFS(mp);
|
|
dnp = VTOSMB(dvp);
|
|
isdot = (nmlen == 1 && name[0] == '.');
|
|
|
|
error = smbfs_pathcheck(smp, cnp->cn_nameptr, cnp->cn_namelen, nameiop);
|
|
|
|
if (error)
|
|
return ENOENT;
|
|
|
|
error = cache_lookup(dvp, vpp, cnp);
|
|
SMBVDEBUG("cache_lookup returned %d\n", error);
|
|
if (error > 0)
|
|
return error;
|
|
if (error) { /* name was found */
|
|
struct vattr vattr;
|
|
int vpid;
|
|
|
|
vp = *vpp;
|
|
vpid = vp->v_id;
|
|
if (dvp == vp) { /* lookup on current */
|
|
vref(vp);
|
|
error = 0;
|
|
SMBVDEBUG("cached '.'\n");
|
|
} else if (flags & ISDOTDOT) {
|
|
VOP_UNLOCK(dvp, 0, td); /* unlock parent */
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
error = vget(vp, LK_EXCLUSIVE, td);
|
|
if (!error && lockparent && islastcn) {
|
|
error = vn_lock(dvp, LK_EXCLUSIVE, td);
|
|
if (error == 0)
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
}
|
|
} else {
|
|
error = vget(vp, LK_EXCLUSIVE, td);
|
|
if (!lockparent || error || !islastcn) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
}
|
|
if (!error) {
|
|
if (vpid == vp->v_id) {
|
|
if (!VOP_GETATTR(vp, &vattr, cnp->cn_cred, td)
|
|
/* && vattr.va_ctime.tv_sec == VTOSMB(vp)->n_ctime*/) {
|
|
if (nameiop != LOOKUP && islastcn)
|
|
cnp->cn_flags |= SAVENAME;
|
|
SMBVDEBUG("use cached vnode\n");
|
|
return (0);
|
|
}
|
|
cache_purge(vp);
|
|
}
|
|
vput(vp);
|
|
if (lockparent && dvp != vp && islastcn)
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
}
|
|
error = vn_lock(dvp, LK_EXCLUSIVE, td);
|
|
*vpp = NULLVP;
|
|
if (error) {
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
return (error);
|
|
}
|
|
cnp->cn_flags &= ~PDIRUNLOCK;
|
|
}
|
|
/*
|
|
* entry is not in the cache or has been expired
|
|
*/
|
|
error = 0;
|
|
*vpp = NULLVP;
|
|
smb_makescred(&scred, td, cnp->cn_cred);
|
|
fap = &fattr;
|
|
if (flags & ISDOTDOT) {
|
|
error = smbfs_smb_lookup(dnp->n_parent, NULL, 0, fap, &scred);
|
|
SMBVDEBUG("result of dotdot lookup: %d\n", error);
|
|
} else {
|
|
fap = &fattr;
|
|
error = smbfs_smb_lookup(dnp, name, nmlen, fap, &scred);
|
|
/* if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.')*/
|
|
SMBVDEBUG("result of smbfs_smb_lookup: %d\n", error);
|
|
}
|
|
if (error && error != ENOENT)
|
|
return error;
|
|
if (error) { /* entry not found */
|
|
/*
|
|
* Handle RENAME or CREATE case...
|
|
*/
|
|
if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) {
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
|
|
if (error)
|
|
return error;
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
return (EJUSTRETURN);
|
|
}
|
|
return ENOENT;
|
|
}/* else {
|
|
SMBVDEBUG("Found entry %s with id=%d\n", fap->entryName, fap->dirEntNum);
|
|
}*/
|
|
/*
|
|
* handle DELETE case ...
|
|
*/
|
|
if (nameiop == DELETE && islastcn) { /* delete last component */
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
|
|
if (error)
|
|
return error;
|
|
if (isdot) {
|
|
VREF(dvp);
|
|
*vpp = dvp;
|
|
return 0;
|
|
}
|
|
error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
|
|
if (error)
|
|
return error;
|
|
*vpp = vp;
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
return 0;
|
|
}
|
|
if (nameiop == RENAME && islastcn && wantparent) {
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, td);
|
|
if (error)
|
|
return error;
|
|
if (isdot)
|
|
return EISDIR;
|
|
error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
|
|
if (error)
|
|
return error;
|
|
*vpp = vp;
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
return 0;
|
|
}
|
|
if (flags & ISDOTDOT) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
|
|
if (error) {
|
|
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td);
|
|
return error;
|
|
}
|
|
if (lockparent && islastcn) {
|
|
error = vn_lock(dvp, LK_EXCLUSIVE, td);
|
|
if (error) {
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
vput(vp);
|
|
return error;
|
|
}
|
|
}
|
|
*vpp = vp;
|
|
} else if (isdot) {
|
|
vref(dvp);
|
|
*vpp = dvp;
|
|
} else {
|
|
error = smbfs_nget(mp, dvp, name, nmlen, fap, &vp);
|
|
if (error)
|
|
return error;
|
|
*vpp = vp;
|
|
SMBVDEBUG("lookup: getnewvp!\n");
|
|
if (!lockparent || !islastcn) {
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
cnp->cn_flags |= PDIRUNLOCK;
|
|
}
|
|
}
|
|
if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
|
|
/* VTOSMB(*vpp)->n_ctime = VTOSMB(*vpp)->n_vattr.va_ctime.tv_sec;*/
|
|
cache_enter(dvp, *vpp, cnp);
|
|
}
|
|
return 0;
|
|
}
|