sys/fs/smbfs/smbfs_node.h

root/sys/fs/smbfs/smbfs_node.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2000-2001 Boris Popov
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _FS_SMBFS_NODE_H_
#define _FS_SMBFS_NODE_H_

#define SMBFS_ROOT_INO          2       /* just like in UFS */

/* Bits for smbnode.n_flag */
#define NFLUSHINPROG            0x0001
#define NFLUSHWANT              0x0002  /* they should gone ... */
#define NMODIFIED               0x0004  /* bogus, until async IO implemented */
/*efine NNEW                    0x0008*//* smb/vnode has been allocated */
#define NREFPARENT              0x0010  /* node holds parent from recycling */
#define NFLUSHWIRE              0x1000  /* pending flush request */
#define NOPEN                   0x2000  /* file is open */
#define NGONE                   0x4000  /* file has been removed/renamed */

struct smbfs_fctx;

struct smbnode {
        int                     n_flag;
        struct vnode *          n_parent;
        struct vnode *          n_vnode;
        struct smbmount *       n_mount;
        time_t                  n_attrage;      /* attributes cache time */
/*      time_t                  n_ctime;*/
        struct timespec         n_mtime;        /* modify time */
        struct timespec         n_atime;        /* last access time */
        u_quad_t                n_size;
        long                    n_ino;
        long                    n_parentino;    /* parent inode number */
        int                     n_dosattr;
        u_int16_t               n_fid;          /* file handle */
        int                     n_rwstate;      /* granted access mode */
        int                     n_rplen;
        char *                  n_rpath;
        u_char                  n_nmlen;
        u_char *                n_name;
        struct smbfs_fctx *     n_dirseq;       /* ff context */
        long                    n_dirofs;       /* last ff offset */
        LIST_ENTRY(smbnode)     n_hash;
};

struct smbcmp {
        struct vnode *          n_parent;
        int                     n_nmlen;
        const char *            n_name;
};

#define VTOSMB(vp)      ((struct smbnode *)(vp)->v_data)
#define SMBTOV(np)      ((struct vnode *)(np)->n_vnode)

#define SMBFS_DNP_SEP(dnp)      ((dnp->n_rplen > 1) ? '\\' : '\0')

struct vop_getpages_args;
struct vop_inactive_args;
struct vop_putpages_args;
struct vop_reclaim_args;
struct ucred;
struct uio;
struct smbfattr;

int  smbfs_inactive(struct vop_inactive_args *);
int  smbfs_reclaim(struct vop_reclaim_args *);
int smbfs_nget(struct mount *mp, struct vnode *dvp, const char *name, int nmlen,
        struct smbfattr *fap, struct vnode **vpp);
u_int32_t smbfs_hash(const u_char *name, int nmlen);

int  smbfs_getpages(struct vop_getpages_args *);
int  smbfs_putpages(struct vop_putpages_args *);
int  smbfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred, int *eofp);
int  smbfs_writevnode(struct vnode *vp, struct uio *uiop, struct ucred *cred, int ioflag);
void smbfs_attr_cacheenter(struct vnode *vp, struct smbfattr *fap);
int  smbfs_attr_cachelookup(struct vnode *vp ,struct vattr *va);

#define smbfs_attr_cacheremove(vp)      VTOSMB(vp)->n_attrage = 0

#endif /* _FS_SMBFS_NODE_H_ */
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