nwfs_node.h

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    1 /*-
    2  * Copyright (c) 1999, 2000, 2001 Boris Popov
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *    This product includes software developed by Boris Popov.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  * $FreeBSD$
   33  */
   34 #ifndef _NWFS_NODE_H_
   35 #define _NWFS_NODE_H_
   36 
   37 #define NWFS_ROOT_INO   0x7ffffffd
   38 
   39 /* Bits for nwnode.n_flag */
   40 #define NFLUSHINPROG    0x0001
   41 #define NFLUSHWANT      0x0002          /* they should gone ... */
   42 #define NMODIFIED       0x0004          /* bogus, until async IO implemented */
   43 #define NREFPARENT      0x0008          /* vnode holds reference to a parent vnode */
   44 #define NVOLUME         0x0010          /* vnode references a volume */
   45 #define NSHOULDFREE     0x0020          /* vnode should be removed from hash */
   46 
   47 struct nwnode {
   48         LIST_ENTRY(nwnode)      n_hash;
   49         struct vnode            *n_vnode;
   50         struct vattr            n_vattr;
   51         struct nwmount          *n_mount;
   52         time_t                  n_atime;        /* attributes cache time*/
   53         time_t                  n_ctime;
   54         time_t                  n_mtime;
   55         int                     n_flag;
   56         ncpfid                  n_parent;
   57         ncpfid                  n_fid;
   58         u_long                  n_attr;         /* LH */
   59         u_long                  n_size;
   60         u_long                  n_dosfid;
   61         int                     opened;
   62 /*      int                     access;*/
   63         u_long                  n_origfh;
   64         ncp_fh                  n_fh;
   65         struct nw_search_seq    n_seq;
   66         u_char                  n_nmlen;
   67         u_char                  n_name[256];
   68 };
   69 
   70 #define VTONW(vp)       ((struct nwnode *)(vp)->v_data)
   71 #define NWTOV(np)       ((struct vnode *)(np)->n_vnode)
   72 #define NWCMPF(f1,f2)   ((f1)->f_parent == (f2)->f_parent && \
   73                          (f1)->f_id == (f2)->f_id)
   74 #define NWCMPN(np1,np2) NWCMPF(&(np1)->n_fid, &(np2)->n_fid)
   75 #define NWCMPV(vp1,vp2) NWCMPN(VTONW(vp1),VTONW(vp2))
   76 
   77 struct vop_getpages_args;
   78 struct vop_inactive_args;
   79 struct vop_putpages_args;
   80 struct vop_reclaim_args;
   81 struct ucred;
   82 struct uio;
   83 
   84 void nwfs_hash_init(void);
   85 void nwfs_hash_free(void);
   86 int  nwfs_lookupnp(struct nwmount *nmp, ncpfid fid, struct thread *td,
   87         struct nwnode **npp);
   88 int  nwfs_inactive(struct vop_inactive_args *);
   89 int  nwfs_reclaim(struct vop_reclaim_args *);
   90 int  nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
   91         struct vnode *dvp, struct vnode **vpp);
   92 
   93 int  nwfs_getpages(struct vop_getpages_args *);
   94 int  nwfs_putpages(struct vop_putpages_args *);
   95 int  nwfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred);
   96 int  nwfs_writevnode(struct vnode *vp, struct uio *uiop, struct ucred *cred, int ioflag);
   97 void nwfs_attr_cacheenter(struct vnode *vp, struct nw_entry_info *fi);
   98 int  nwfs_attr_cachelookup(struct vnode *vp,struct vattr *va);
   99 
  100 #define nwfs_attr_cacheremove(vp)       VTONW(vp)->n_atime = 0
  101 
  102 #endif /* _NWFS_NODE_H_ */

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

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