FreeBSD/Linux Kernel Cross Reference
sys/nwfs/nwfs_node.h

     /*
      * Copyright (c) 1999, 2000 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *    This product includes software developed by Boris Popov.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * 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.
     *
     * $FreeBSD$
     */
    #ifndef _NWFS_NODE_H_
    #define _NWFS_NODE_H_
    
    #define NWFS_ROOT_INO   0x7ffffffd
    #define NWFS_ROOTVOL    "#.ROOT"
    
    /* Bits for nwnode.n_flag */
    #define NFLUSHINPROG    0x0001
    #define NFLUSHWANT      0x0002          /* they should gone ... */
    #define NMODIFIED       0x0004          /* bogus, until async IO implemented */
    #define NNEW            0x0008          /* vnode has been allocated */
    #define NVOLUME         0x0010          /* vnode references a volume */
    #define NSHOULDFREE     0x0020          /* vnode should be removed from hash */
    
    struct nwnode {
            struct lock             n_lock;         /* Keep this first */
            LIST_ENTRY(nwnode)      n_hash;
            struct vnode            *n_vnode;
            struct vattr            n_vattr;
            struct nwmount          *n_mount;
            time_t                  n_atime;        /* attributes cache time*/
            time_t                  n_ctime;
            time_t                  n_mtime;
            int                     n_flag;
            ncpfid                  n_parent;
            ncpfid                  n_fid;
            int                     n_refparent;
            u_long                  n_attr;         /* LH */
            u_long                  n_size;
            u_long                  n_dosfid;
            int                     opened;
    /*      int                     access;*/
            u_long                  n_origfh;
            ncp_fh                  n_fh;
            struct nw_search_seq    n_seq;
            u_char                  n_nmlen;
            u_char                  n_name[256];
    };
    
    #define VTONW(vp)       ((struct nwnode *)(vp)->v_data)
    #define NWTOV(np)       ((struct vnode *)(np)->n_vnode)
    #define NWCMPF(f1,f2)   ((f1)->f_parent == (f2)->f_parent && \
                             (f1)->f_id == (f2)->f_id)
    #define NWCMPN(np1,np2) NWCMPF(&(np1)->n_fid, &(np2)->n_fid)
    #define NWCMPV(vp1,vp2) NWCMPN(VTONW(vp1),VTONW(vp2))
    
    struct vop_getpages_args;
    struct vop_inactive_args;
    struct vop_putpages_args;
    struct vop_reclaim_args;
    struct ucred;
    struct uio;
    
    void nwfs_hash_init(void);
    void nwfs_hash_free(void);
    int  nwfs_allocvp(struct mount *mp, ncpfid fid, struct vnode **vpp);
    int  nwfs_lookupnp(struct nwmount *nmp, ncpfid fid, struct proc *p,
            struct nwnode **npp);
    int  nwfs_inactive(struct vop_inactive_args *);
    int  nwfs_reclaim(struct vop_reclaim_args *);
    int nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
        struct vnode *dvp, struct vnode **vpp);
    
    int  nwfs_getpages(struct vop_getpages_args *);
    int  nwfs_putpages(struct vop_putpages_args *);
    int  nwfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred);
   int  nwfs_writevnode(struct vnode *vp, struct uio *uiop, struct ucred *cred, int ioflag);
   void nwfs_attr_cacheenter(struct vnode *vp, struct nw_entry_info *fi);
   int  nwfs_attr_cachelookup(struct vnode *vp,struct vattr *va);
   
   #define nwfs_attr_cacheremove(vp)       VTONW(vp)->n_atime = 0
   
   #endif /* _NWFS_NODE_H_ */

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