1028 lines
26 KiB
C
1028 lines
26 KiB
C
/*
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* Copyright (c) 1999, 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/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 <vm/vm.h>
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#include <vm/vm_extern.h>
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#include <machine/mutex.h>
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#include <netncp/ncp.h>
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#include <netncp/ncp_conn.h>
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#include <netncp/ncp_subr.h>
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#include <netncp/nwerror.h>
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#include <netncp/ncp_nls.h>
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#include <fs/nwfs/nwfs.h>
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#include <fs/nwfs/nwfs_node.h>
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#include <fs/nwfs/nwfs_subr.h>
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/*
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* Prototypes for NWFS vnode operations
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*/
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static int nwfs_create(struct vop_create_args *);
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static int nwfs_mknod(struct vop_mknod_args *);
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static int nwfs_open(struct vop_open_args *);
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static int nwfs_close(struct vop_close_args *);
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static int nwfs_access(struct vop_access_args *);
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static int nwfs_getattr(struct vop_getattr_args *);
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static int nwfs_setattr(struct vop_setattr_args *);
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static int nwfs_read(struct vop_read_args *);
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static int nwfs_write(struct vop_write_args *);
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static int nwfs_fsync(struct vop_fsync_args *);
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static int nwfs_remove(struct vop_remove_args *);
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static int nwfs_link(struct vop_link_args *);
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static int nwfs_lookup(struct vop_lookup_args *);
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static int nwfs_rename(struct vop_rename_args *);
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static int nwfs_mkdir(struct vop_mkdir_args *);
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static int nwfs_rmdir(struct vop_rmdir_args *);
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static int nwfs_symlink(struct vop_symlink_args *);
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static int nwfs_readdir(struct vop_readdir_args *);
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static int nwfs_strategy(struct vop_strategy_args *);
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static int nwfs_print(struct vop_print_args *);
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static int nwfs_pathconf(struct vop_pathconf_args *ap);
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/* Global vfs data structures for nwfs */
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vop_t **nwfs_vnodeop_p;
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static struct vnodeopv_entry_desc nwfs_vnodeop_entries[] = {
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{ &vop_default_desc, (vop_t *) vop_defaultop },
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{ &vop_access_desc, (vop_t *) nwfs_access },
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{ &vop_open_desc, (vop_t *) nwfs_open },
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{ &vop_close_desc, (vop_t *) nwfs_close },
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{ &vop_create_desc, (vop_t *) nwfs_create },
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{ &vop_fsync_desc, (vop_t *) nwfs_fsync },
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{ &vop_getattr_desc, (vop_t *) nwfs_getattr },
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{ &vop_getpages_desc, (vop_t *) nwfs_getpages },
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{ &vop_putpages_desc, (vop_t *) nwfs_putpages },
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{ &vop_ioctl_desc, (vop_t *) nwfs_ioctl },
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{ &vop_inactive_desc, (vop_t *) nwfs_inactive },
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{ &vop_link_desc, (vop_t *) nwfs_link },
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{ &vop_lookup_desc, (vop_t *) nwfs_lookup },
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{ &vop_mkdir_desc, (vop_t *) nwfs_mkdir },
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{ &vop_mknod_desc, (vop_t *) nwfs_mknod },
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{ &vop_pathconf_desc, (vop_t *) nwfs_pathconf },
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{ &vop_print_desc, (vop_t *) nwfs_print },
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{ &vop_read_desc, (vop_t *) nwfs_read },
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{ &vop_readdir_desc, (vop_t *) nwfs_readdir },
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{ &vop_reclaim_desc, (vop_t *) nwfs_reclaim },
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{ &vop_remove_desc, (vop_t *) nwfs_remove },
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{ &vop_rename_desc, (vop_t *) nwfs_rename },
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{ &vop_rmdir_desc, (vop_t *) nwfs_rmdir },
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{ &vop_setattr_desc, (vop_t *) nwfs_setattr },
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{ &vop_strategy_desc, (vop_t *) nwfs_strategy },
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{ &vop_symlink_desc, (vop_t *) nwfs_symlink },
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{ &vop_write_desc, (vop_t *) nwfs_write },
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{ NULL, NULL }
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};
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static struct vnodeopv_desc nwfs_vnodeop_opv_desc =
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{ &nwfs_vnodeop_p, nwfs_vnodeop_entries };
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VNODEOP_SET(nwfs_vnodeop_opv_desc);
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/*
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* nwfs_access vnode op
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*/
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static int
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nwfs_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 *td;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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mode_t mpmode;
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struct nwmount *nmp = VTONWFS(vp);
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NCPVNDEBUG("\n");
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if ((ap->a_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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mpmode = vp->v_type == VREG ? nmp->m.file_mode :
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nmp->m.dir_mode;
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return (vaccess(vp->v_type, mpmode, nmp->m.uid,
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nmp->m.gid, ap->a_mode, ap->a_cred, NULL));
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}
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/*
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* nwfs_open vnode op
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*/
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/* ARGSUSED */
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static int
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nwfs_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 *td;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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int mode = ap->a_mode;
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struct nwnode *np = VTONW(vp);
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struct ncp_open_info no;
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struct nwmount *nmp = VTONWFS(vp);
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struct vattr vattr;
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int error, nwm;
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NCPVNDEBUG("%s,%d\n", np->n_name, np->opened);
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if (vp->v_type != VREG && vp->v_type != VDIR) {
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NCPFATAL("open 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) return 0; /* nothing to do now */
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if (np->n_flag & NMODIFIED) {
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if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_td, 1)) == EINTR)
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return (error);
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np->n_atime = 0;
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error = VOP_GETATTR(vp, &vattr, ap->a_cred, ap->a_td);
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if (error) return (error);
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np->n_mtime = 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) return (error);
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if (np->n_mtime != vattr.va_mtime.tv_sec) {
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if ((error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_td, 1)) == EINTR)
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return (error);
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np->n_mtime = vattr.va_mtime.tv_sec;
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}
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}
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if (np->opened) {
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np->opened++;
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return 0;
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}
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nwm = AR_READ;
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if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
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nwm |= AR_WRITE;
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error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN,
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0, nwm, &no, ap->a_td, ap->a_cred);
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if (error) {
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if (mode & FWRITE)
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return EACCES;
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nwm = AR_READ;
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error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0,
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nwm, &no, ap->a_td, ap->a_cred);
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}
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if (!error) {
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np->opened++;
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np->n_fh = no.fh;
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np->n_origfh = no.origfh;
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}
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np->n_atime = 0;
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return (error);
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}
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static int
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nwfs_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 *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 nwnode *np = VTONW(vp);
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int error;
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NCPVNDEBUG("name=%s,pid=%d,c=%d\n", np->n_name, ap->a_td->td_proc->p_pid,
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np->opened);
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if (vp->v_type == VDIR) return 0; /* nothing to do now */
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error = 0;
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mtx_lock(&vp->v_interlock);
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if (np->opened == 0) {
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mtx_unlock(&vp->v_interlock);
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return 0;
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}
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mtx_unlock(&vp->v_interlock);
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error = nwfs_vinvalbuf(vp, V_SAVE, ap->a_cred, ap->a_td, 1);
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mtx_lock(&vp->v_interlock);
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if (np->opened == 0) {
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mtx_unlock(&vp->v_interlock);
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return 0;
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}
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if (--np->opened == 0) {
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mtx_unlock(&vp->v_interlock);
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error = ncp_close_file(NWFSTOCONN(VTONWFS(vp)), &np->n_fh,
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ap->a_td, ap->a_cred);
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} else
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mtx_unlock(&vp->v_interlock);
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np->n_atime = 0;
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return (error);
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}
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/*
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* nwfs_getattr call from vfs.
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*/
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static int
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nwfs_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 *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 nwnode *np = VTONW(vp);
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struct vattr *va=ap->a_vap;
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struct nwmount *nmp = VTONWFS(vp);
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struct nw_entry_info fattr;
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int error;
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u_int32_t oldsize;
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NCPVNDEBUG("%lx:%d: '%s' %d\n", (long)vp, nmp->n_volume, np->n_name, (vp->v_vflag & VV_ROOT) != 0);
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error = nwfs_attr_cachelookup(vp, va);
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if (!error) return 0;
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NCPVNDEBUG("not in cache\n");
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oldsize = np->n_size;
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if (np->n_flag & NVOLUME) {
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error = ncp_obtain_info(nmp, np->n_fid.f_id, 0, NULL, &fattr,
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ap->a_td, ap->a_cred);
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} else {
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error = ncp_obtain_info(nmp, np->n_fid.f_parent, np->n_nmlen,
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np->n_name, &fattr, ap->a_td, ap->a_cred);
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}
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if (error) {
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NCPVNDEBUG("error %d\n", error);
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return error;
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}
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nwfs_attr_cacheenter(vp, &fattr);
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*va = np->n_vattr;
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if (np->opened)
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np->n_size = oldsize;
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return (0);
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}
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/*
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* nwfs_setattr call from vfs.
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*/
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static int
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nwfs_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 *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 nwnode *np = VTONW(vp);
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struct vattr *vap = ap->a_vap;
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u_quad_t tsize=0;
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int error = 0;
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NCPVNDEBUG("\n");
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if (vap->va_flags != VNOVAL)
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return (EOPNOTSUPP);
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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) &&(vp->v_mount->mnt_flag & MNT_RDONLY))
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return (EROFS);
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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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/*
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* Disallow write attempts if the filesystem is
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* mounted read-only.
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*/
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if (vp->v_mount->mnt_flag & MNT_RDONLY)
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return (EROFS);
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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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break;
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default:
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return EINVAL;
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};
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}
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error = ncp_setattr(vp, vap, ap->a_cred, ap->a_td);
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if (error && vap->va_size != VNOVAL) {
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np->n_size = tsize;
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vnode_pager_setsize(vp, (u_long)tsize);
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}
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np->n_atime = 0; /* invalidate cache */
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VOP_GETATTR(vp, vap, ap->a_cred, ap->a_td);
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np->n_mtime = vap->va_mtime.tv_sec;
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return (0);
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}
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/*
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* nwfs_read call.
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*/
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static int
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nwfs_read(ap)
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struct vop_read_args /* {
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struct vnode *a_vp;
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struct uio *a_uio;
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int a_ioflag;
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struct ucred *a_cred;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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struct uio *uio=ap->a_uio;
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int error;
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NCPVNDEBUG("nwfs_read:\n");
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if (vp->v_type != VREG && vp->v_type != VDIR)
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return (EPERM);
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error = nwfs_readvnode(vp, uio, ap->a_cred);
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return error;
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}
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static int
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nwfs_write(ap)
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struct vop_write_args /* {
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struct vnode *a_vp;
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struct uio *a_uio;
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int a_ioflag;
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struct ucred *a_cred;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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struct uio *uio = ap->a_uio;
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int error;
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NCPVNDEBUG("%d,ofs=%d,sz=%d\n", vp->v_type, (int)uio->uio_offset, uio->uio_resid);
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if (vp->v_type != VREG)
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return (EPERM);
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error = nwfs_writevnode(vp, uio, ap->a_cred, ap->a_ioflag);
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return(error);
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}
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/*
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* nwfs_create call
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* Create a regular file. On entry the directory to contain the file being
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* created is locked. We must release before we return. We must also free
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* the pathname buffer pointed at by cnp->cn_pnbuf, always on error, or
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* only if the SAVESTART bit in cn_flags is clear on success.
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*/
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static int
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nwfs_create(ap)
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struct vop_create_args /* {
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struct vnode *a_dvp;
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struct vnode **a_vpp;
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struct componentname *a_cnp;
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struct vattr *a_vap;
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} */ *ap;
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{
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struct vnode *dvp = ap->a_dvp;
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struct vattr *vap = ap->a_vap;
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struct vnode **vpp=ap->a_vpp;
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struct componentname *cnp = ap->a_cnp;
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struct vnode *vp = (struct vnode *)0;
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int error = 0, fmode;
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struct vattr vattr;
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struct nwnode *np;
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struct ncp_open_info no;
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struct nwmount *nmp=VTONWFS(dvp);
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ncpfid fid;
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|
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NCPVNDEBUG("\n");
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*vpp = NULL;
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if (vap->va_type == VSOCK)
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return (EOPNOTSUPP);
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if ((error = VOP_GETATTR(dvp, &vattr, cnp->cn_cred, cnp->cn_thread))) {
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return (error);
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}
|
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fmode = AR_READ | AR_WRITE;
|
|
/* if (vap->va_vaflags & VA_EXCLUSIVE)
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fmode |= AR_DENY_READ | AR_DENY_WRITE;*/
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|
|
error = ncp_open_create_file_or_subdir(nmp, dvp, cnp->cn_namelen, cnp->cn_nameptr,
|
|
OC_MODE_CREATE | OC_MODE_OPEN | OC_MODE_REPLACE,
|
|
0, fmode, &no, cnp->cn_thread, cnp->cn_cred);
|
|
if (!error) {
|
|
error = ncp_close_file(NWFSTOCONN(nmp), &no.fh, cnp->cn_thread, cnp->cn_cred);
|
|
fid.f_parent = VTONW(dvp)->n_fid.f_id;
|
|
fid.f_id = no.fattr.dirEntNum;
|
|
error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &vp);
|
|
if (!error) {
|
|
np = VTONW(vp);
|
|
np->opened = 0;
|
|
*vpp = vp;
|
|
}
|
|
if (cnp->cn_flags & MAKEENTRY)
|
|
cache_enter(dvp, vp, cnp);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* nwfs_remove call. It isn't possible to emulate UFS behaivour because
|
|
* NetWare doesn't allow delete/rename operations on an opened file.
|
|
*/
|
|
static int
|
|
nwfs_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 nwnode *np = VTONW(vp);
|
|
struct nwmount *nmp = VTONWFS(vp);
|
|
int error;
|
|
|
|
if (vp->v_type == VDIR || np->opened || vrefcnt(vp) != 1)
|
|
return EPERM;
|
|
cache_purge(vp);
|
|
error = ncp_DeleteNSEntry(nmp, VTONW(dvp)->n_fid.f_id,
|
|
cnp->cn_namelen, cnp->cn_nameptr, cnp->cn_thread, cnp->cn_cred);
|
|
if (error == 0)
|
|
np->n_flag |= NSHOULDFREE;
|
|
else if (error == 0x899c)
|
|
error = EACCES;
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* nwfs_file rename call
|
|
*/
|
|
static int
|
|
nwfs_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 nwmount *nmp=VTONWFS(fvp);
|
|
u_int16_t oldtype = 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 && vrefcnt(tvp) > 1) {
|
|
error = EBUSY;
|
|
goto out;
|
|
}
|
|
if (fvp->v_type == VDIR) {
|
|
oldtype |= NW_TYPE_SUBDIR;
|
|
} else if (fvp->v_type == VREG) {
|
|
oldtype |= NW_TYPE_FILE;
|
|
} else {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
if (tvp && tvp != fvp) {
|
|
error = ncp_DeleteNSEntry(nmp, VTONW(tdvp)->n_fid.f_id,
|
|
tcnp->cn_namelen, tcnp->cn_nameptr,
|
|
tcnp->cn_thread, tcnp->cn_cred);
|
|
if (error == 0x899c) error = EACCES;
|
|
if (error)
|
|
goto out_cacherem;
|
|
}
|
|
error = ncp_nsrename(NWFSTOCONN(nmp), nmp->n_volume, nmp->name_space,
|
|
oldtype, &nmp->m.nls,
|
|
VTONW(fdvp)->n_fid.f_id, fcnp->cn_nameptr, fcnp->cn_namelen,
|
|
VTONW(tdvp)->n_fid.f_id, tcnp->cn_nameptr, tcnp->cn_namelen,
|
|
tcnp->cn_thread, tcnp->cn_cred);
|
|
|
|
if (error == 0x8992)
|
|
error = EEXIST;
|
|
if (fvp->v_type == VDIR) {
|
|
if (tvp != NULL && tvp->v_type == VDIR)
|
|
cache_purge(tdvp);
|
|
cache_purge(fdvp);
|
|
}
|
|
out_cacherem:
|
|
nwfs_attr_cacheremove(fdvp);
|
|
nwfs_attr_cacheremove(tdvp);
|
|
nwfs_attr_cacheremove(fvp);
|
|
out:
|
|
if (tdvp == tvp)
|
|
vrele(tdvp);
|
|
else
|
|
vput(tdvp);
|
|
if (tvp)
|
|
vput(tvp);
|
|
vrele(fdvp);
|
|
vrele(fvp);
|
|
if (tvp)
|
|
nwfs_attr_cacheremove(tvp);
|
|
/*
|
|
* Kludge: Map ENOENT => 0 assuming that it is a reply to a retry.
|
|
*/
|
|
if (error == ENOENT)
|
|
error = 0;
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* nwfs hard link create call
|
|
* Netware filesystems don't know what links are.
|
|
*/
|
|
static int
|
|
nwfs_link(ap)
|
|
struct vop_link_args /* {
|
|
struct vnode *a_tdvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
/*
|
|
* nwfs_symlink link create call
|
|
* Netware filesystems don't know what symlinks are.
|
|
*/
|
|
static int
|
|
nwfs_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 nwfs_mknod(ap)
|
|
struct vop_mknod_args /* {
|
|
} */ *ap;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
/*
|
|
* nwfs_mkdir call
|
|
*/
|
|
static int
|
|
nwfs_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 componentname *cnp = ap->a_cnp;
|
|
int len=cnp->cn_namelen;
|
|
struct ncp_open_info no;
|
|
struct nwnode *np;
|
|
struct vnode *newvp = (struct vnode *)0;
|
|
ncpfid fid;
|
|
int error = 0;
|
|
struct vattr vattr;
|
|
char *name=cnp->cn_nameptr;
|
|
|
|
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;
|
|
}
|
|
if (ncp_open_create_file_or_subdir(VTONWFS(dvp), dvp, cnp->cn_namelen,
|
|
cnp->cn_nameptr, OC_MODE_CREATE, aDIR, 0xffff,
|
|
&no, cnp->cn_thread, cnp->cn_cred) != 0) {
|
|
error = EACCES;
|
|
} else {
|
|
error = 0;
|
|
}
|
|
if (!error) {
|
|
fid.f_parent = VTONW(dvp)->n_fid.f_id;
|
|
fid.f_id = no.fattr.dirEntNum;
|
|
error = nwfs_nget(VTOVFS(dvp), fid, &no.fattr, dvp, &newvp);
|
|
if (!error) {
|
|
np = VTONW(newvp);
|
|
newvp->v_type = VDIR;
|
|
*ap->a_vpp = newvp;
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* nwfs_remove directory call
|
|
*/
|
|
static int
|
|
nwfs_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 nwnode *np = VTONW(vp);
|
|
struct nwmount *nmp = VTONWFS(vp);
|
|
struct nwnode *dnp = VTONW(dvp);
|
|
int error = EIO;
|
|
|
|
if (dvp == vp)
|
|
return EINVAL;
|
|
|
|
error = ncp_DeleteNSEntry(nmp, dnp->n_fid.f_id,
|
|
cnp->cn_namelen, cnp->cn_nameptr, cnp->cn_thread, cnp->cn_cred);
|
|
if (error == 0)
|
|
np->n_flag |= NSHOULDFREE;
|
|
else if (error == NWE_DIR_NOT_EMPTY)
|
|
error = ENOTEMPTY;
|
|
dnp->n_flag |= NMODIFIED;
|
|
nwfs_attr_cacheremove(dvp);
|
|
cache_purge(dvp);
|
|
cache_purge(vp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* nwfs_readdir call
|
|
*/
|
|
static int
|
|
nwfs_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);
|
|
if (ap->a_ncookies) {
|
|
printf("nwfs_readdir: no support for cookies now...");
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
error = nwfs_readvnode(vp, uio, ap->a_cred);
|
|
return error;
|
|
}
|
|
/* ARGSUSED */
|
|
static int
|
|
nwfs_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 (nfs_flush(ap->a_vp, ap->a_cred, ap->a_waitfor, ap->a_td, 1));*/
|
|
return (0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static
|
|
int nwfs_print (ap)
|
|
struct vop_print_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct nwnode *np = VTONW(vp);
|
|
|
|
printf("\tnwfs node: name = '%s', fid = %d, pfid = %d\n",
|
|
np->n_name, np->n_fid.f_id, np->n_fid.f_parent);
|
|
return (0);
|
|
}
|
|
|
|
static int nwfs_pathconf (ap)
|
|
struct vop_pathconf_args /* {
|
|
struct vnode *vp;
|
|
int name;
|
|
register_t *retval;
|
|
} */ *ap;
|
|
{
|
|
int name=ap->a_name, error=0;
|
|
register_t *retval=ap->a_retval;
|
|
|
|
switch(name){
|
|
case _PC_LINK_MAX:
|
|
*retval=0;
|
|
break;
|
|
case _PC_NAME_MAX:
|
|
*retval=NCP_MAX_FILENAME; /* XXX from nwfsnode */
|
|
break;
|
|
case _PC_PATH_MAX:
|
|
*retval=NCP_MAXPATHLEN; /* XXX from nwfsnode */
|
|
break;
|
|
default:
|
|
error=EINVAL;
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
static int nwfs_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;
|
|
|
|
KASSERT(ap->a_vp == ap->a_bp->b_vp, ("%s(%p != %p)",
|
|
__func__, ap->a_vp, ap->a_bp->b_vp));
|
|
NCPVNDEBUG("\n");
|
|
if (bp->b_flags & B_PHYS)
|
|
panic("nwfs 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 the op is asynchronous and an i/o daemon is waiting
|
|
* queue the request, wake it up and wait for completion
|
|
* otherwise just do it ourselves.
|
|
*/
|
|
if ((bp->b_flags & B_ASYNC) == 0 )
|
|
error = nwfs_doio(bp, cr, td);
|
|
return (error);
|
|
}
|
|
|
|
|
|
/*
|
|
* How to keep the brain busy ...
|
|
* Currently lookup routine can make two lookup for vnode. This can be
|
|
* avoided by reorg the code.
|
|
*/
|
|
int
|
|
nwfs_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 vnode *dvp = ap->a_dvp;
|
|
struct vnode **vpp = ap->a_vpp;
|
|
int flags = cnp->cn_flags;
|
|
struct vnode *vp;
|
|
struct nwmount *nmp;
|
|
struct mount *mp = dvp->v_mount;
|
|
struct nwnode *dnp, *npp;
|
|
struct nw_entry_info fattr, *fap;
|
|
ncpfid fid;
|
|
int nameiop=cnp->cn_nameiop, islastcn;
|
|
int lockparent, wantparent, error = 0, notfound;
|
|
struct thread *td = cnp->cn_thread;
|
|
char _name[cnp->cn_namelen+1];
|
|
bcopy(cnp->cn_nameptr, _name, cnp->cn_namelen);
|
|
_name[cnp->cn_namelen]=0;
|
|
|
|
if (dvp->v_type != VDIR)
|
|
return (ENOTDIR);
|
|
if ((flags & ISDOTDOT) && (dvp->v_vflag & VV_ROOT)) {
|
|
printf("nwfs_lookup: invalid '..'\n");
|
|
return EIO;
|
|
}
|
|
|
|
NCPVNDEBUG("%d '%s' in '%s' id=d\n", nameiop, _name,
|
|
VTONW(dvp)->n_name/*, VTONW(dvp)->n_name*/);
|
|
|
|
islastcn = flags & ISLASTCN;
|
|
if (islastcn && (mp->mnt_flag & MNT_RDONLY) && (nameiop != LOOKUP))
|
|
return (EROFS);
|
|
if ((error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, td)))
|
|
return (error);
|
|
lockparent = flags & LOCKPARENT;
|
|
wantparent = flags & (LOCKPARENT|WANTPARENT);
|
|
nmp = VFSTONWFS(mp);
|
|
dnp = VTONW(dvp);
|
|
/*
|
|
printf("dvp %d:%d:%d\n", (int)mp, (int)dvp->v_vflag & VV_ROOT, (int)flags & ISDOTDOT);
|
|
*/
|
|
error = ncp_pathcheck(cnp->cn_nameptr, cnp->cn_namelen, &nmp->m.nls,
|
|
(nameiop == CREATE || nameiop == RENAME) && (nmp->m.nls.opt & NWHP_NOSTRICT) == 0);
|
|
if (error)
|
|
return ENOENT;
|
|
|
|
error = cache_lookup(dvp, vpp, cnp);
|
|
NCPVNDEBUG("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;
|
|
NCPVNDEBUG("cached '.'");
|
|
} else if (flags & ISDOTDOT) {
|
|
VOP_UNLOCK(dvp, 0, td); /* unlock parent */
|
|
error = vget(vp, LK_EXCLUSIVE, td);
|
|
if (!error && lockparent && islastcn)
|
|
error = vn_lock(dvp, LK_EXCLUSIVE, td);
|
|
} else {
|
|
error = vget(vp, LK_EXCLUSIVE, td);
|
|
if (!lockparent || error || !islastcn)
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
}
|
|
if (!error) {
|
|
if (vpid == vp->v_id) {
|
|
if (!VOP_GETATTR(vp, &vattr, cnp->cn_cred, td)
|
|
&& vattr.va_ctime.tv_sec == VTONW(vp)->n_ctime) {
|
|
if (nameiop != LOOKUP && islastcn)
|
|
cnp->cn_flags |= SAVENAME;
|
|
NCPVNDEBUG("use cached vnode");
|
|
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)
|
|
return (error);
|
|
}
|
|
/* not in cache, so ... */
|
|
error = 0;
|
|
*vpp = NULLVP;
|
|
fap = NULL;
|
|
if (flags & ISDOTDOT) {
|
|
if (NWCMPF(&dnp->n_parent, &nmp->n_rootent)) {
|
|
fid = nmp->n_rootent;
|
|
fap = NULL;
|
|
notfound = 0;
|
|
} else {
|
|
error = nwfs_lookupnp(nmp, dnp->n_parent, td, &npp);
|
|
if (error) {
|
|
return error;
|
|
}
|
|
fid = dnp->n_parent;
|
|
fap = &fattr;
|
|
/*np = *npp;*/
|
|
notfound = ncp_obtain_info(nmp, npp->n_dosfid,
|
|
0, NULL, fap, td, cnp->cn_cred);
|
|
}
|
|
} else {
|
|
fap = &fattr;
|
|
notfound = ncp_lookup(dvp, cnp->cn_namelen, cnp->cn_nameptr,
|
|
fap, td, cnp->cn_cred);
|
|
fid.f_id = fap->dirEntNum;
|
|
if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
|
|
fid.f_parent = dnp->n_fid.f_parent;
|
|
} else
|
|
fid.f_parent = dnp->n_fid.f_id;
|
|
NCPVNDEBUG("call to ncp_lookup returned=%d\n", notfound);
|
|
}
|
|
if (notfound && notfound < 0x80 )
|
|
return (notfound); /* hard error */
|
|
if (notfound) { /* entry not found */
|
|
/* Handle RENAME or CREATE case... */
|
|
if ((nameiop == CREATE || nameiop == RENAME) && wantparent && islastcn) {
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent)
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
return (EJUSTRETURN);
|
|
}
|
|
return ENOENT;
|
|
}/* else {
|
|
NCPVNDEBUG("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, cnp->cn_thread);
|
|
if (error) return (error);
|
|
if (NWCMPF(&dnp->n_fid, &fid)) { /* we found ourselfs */
|
|
VREF(dvp);
|
|
*vpp = dvp;
|
|
return 0;
|
|
}
|
|
error = nwfs_nget(mp, fid, fap, dvp, &vp);
|
|
if (error) return (error);
|
|
*vpp = vp;
|
|
cnp->cn_flags |= SAVENAME; /* I free it later */
|
|
if (!lockparent) VOP_UNLOCK(dvp, 0, td);
|
|
return (0);
|
|
}
|
|
if (nameiop == RENAME && islastcn && wantparent) {
|
|
error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, cnp->cn_thread);
|
|
if (error) return (error);
|
|
if (NWCMPF(&dnp->n_fid, &fid)) return EISDIR;
|
|
error = nwfs_nget(mp, fid, fap, dvp, &vp);
|
|
if (error) return (error);
|
|
*vpp = vp;
|
|
cnp->cn_flags |= SAVENAME;
|
|
if (!lockparent)
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
return (0);
|
|
}
|
|
if (flags & ISDOTDOT) {
|
|
VOP_UNLOCK(dvp, 0, td); /* race to get the inode */
|
|
error = nwfs_nget(mp, fid, NULL, NULL, &vp);
|
|
if (error) {
|
|
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY, td);
|
|
return (error);
|
|
}
|
|
if (lockparent && islastcn &&
|
|
(error = vn_lock(dvp, LK_EXCLUSIVE, td))) {
|
|
vput(vp);
|
|
return (error);
|
|
}
|
|
*vpp = vp;
|
|
} else if (NWCMPF(&dnp->n_fid, &fid)) {
|
|
vref(dvp);
|
|
*vpp = dvp;
|
|
} else {
|
|
error = nwfs_nget(mp, fid, fap, dvp, &vp);
|
|
if (error) return (error);
|
|
*vpp = vp;
|
|
NCPVNDEBUG("lookup: getnewvp!\n");
|
|
if (!lockparent || !islastcn)
|
|
VOP_UNLOCK(dvp, 0, td);
|
|
}
|
|
if ((cnp->cn_flags & MAKEENTRY)/* && !islastcn*/) {
|
|
VTONW(*vpp)->n_ctime = VTONW(*vpp)->n_vattr.va_ctime.tv_sec;
|
|
cache_enter(dvp, *vpp, cnp);
|
|
}
|
|
return (0);
|
|
}
|