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freebsd-skq/sys/fs/smbfs/smbfs_node.h

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/* -> /*- for copyright notices, minor format tweaks as necessary
2005-01-06 18:10:42 +00:00
/*-
sys/fs: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 15:15:37 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Switch to our preferred 2-clause BSD license. Approved by: bp
2010-04-07 16:50:38 +00:00
* Copyright (c) 2000-2001 Boris Popov
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
* 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.
*
* $FreeBSD$
*/
#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 */
Implement additional SMB calls to allow proper update of file size as some file servers fail to do it in the right way. New NFLUSHWIRE flag marks pending flush request(s). NB: not all cases covered by this commit. Obtained from: Darwin
2002-09-18 09:27:04 +00:00
#define NFLUSHWIRE 0x1000 /* pending flush request */
Send the close request to the SMB server in smbfs_inactive(), instead of smbfs_close(). This fixes paging to and from mmap()'d regions of smbfs files after the descriptor has been closed, and makes thttpd, GNU ld, and perhaps more things work that depend on being able to do this. PR: 48291
2003-06-17 12:58:02 +00:00
#define NOPEN 0x2000 /* file is open */
Fixes problems that occurred when a file was removed and a directory created with the same name, and vice versa: - Immediately recycle vnodes of files & directories that have been deleted or renamed. - When looking an entry in the VFS name cache or smbfs's private cache, make sure the vnode type is consistent with the type of file the server thinks it is, and re-create the vnode if it isn't. The alternative to this is to recycle vnodes unconditionally when their use count drops to 0, but this would make all the caching we do mostly useless. PR: 62342 MFC after: 2 weeks
2004-02-10 05:53:02 +00:00
#define NGONE 0x4000 /* file has been removed/renamed */
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
struct smbfs_fctx;
struct smbnode {
int n_flag;
Store a reference to the parent directory's vnode in struct smbnode, not to the parent's smbnode, which may be freed during the lifetime of the child if the mount is forcibly unmounted. umount -f should now work properly (ie. not panic) on smbfs mounts.
2002-12-13 10:15:01 +00:00
struct vnode * n_parent;
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
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;
Until now, smbfs_fullpath() computed the full path starting from the vnode and following back the chain of n_parent pointers up to the root, without acquiring the locks of the n_parent vnodes analyzed during the computation. This is immediately wrong because if the vnode lock is not held there's no guarantee on the validity of the vnode pointer or the data. In order to fix, store the whole path in the smbnode structure so that smbfs_fullpath() can use this information. Discussed with: kib Reported and tested by: pho Sponsored by: iXsystems inc.
2012-11-22 08:58:29 +00:00
long n_parentino; /* parent inode number */
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
int n_dosattr;
u_int16_t n_fid; /* file handle */
int n_rwstate; /* granted access mode */
Until now, smbfs_fullpath() computed the full path starting from the vnode and following back the chain of n_parent pointers up to the root, without acquiring the locks of the n_parent vnodes analyzed during the computation. This is immediately wrong because if the vnode lock is not held there's no guarantee on the validity of the vnode pointer or the data. In order to fix, store the whole path in the smbnode structure so that smbfs_fullpath() can use this information. Discussed with: kib Reported and tested by: pho Sponsored by: iXsystems inc.
2012-11-22 08:58:29 +00:00
int n_rplen;
char * n_rpath;
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
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;
};
- Do not put in the mntqueue half-constructed vnodes. - Change the code so that it relies on vfs_hash rather than on a home-made hashtable. - There's no need to inline fnv_32_buf(). Reviewed by: delphij Tested by: pho Sponsored by: iXsystems inc.
2012-10-31 03:55:33 +00:00
struct smbcmp {
struct vnode * n_parent;
int n_nmlen;
const char * n_name;
};
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
#define VTOSMB(vp) ((struct smbnode *)(vp)->v_data)
#define SMBTOV(np) ((struct vnode *)(np)->n_vnode)
Until now, smbfs_fullpath() computed the full path starting from the vnode and following back the chain of n_parent pointers up to the root, without acquiring the locks of the n_parent vnodes analyzed during the computation. This is immediately wrong because if the vnode lock is not held there's no guarantee on the validity of the vnode pointer or the data. In order to fix, store the whole path in the smbnode structure so that smbfs_fullpath() can use this information. Discussed with: kib Reported and tested by: pho Sponsored by: iXsystems inc.
2012-11-22 08:58:29 +00:00
#define SMBFS_DNP_SEP(dnp) ((dnp->n_rplen > 1) ? '\\' : '\0')
Import kernel part of SMB/CIFS requester. Add smbfs(CIFS) filesystem. Userland part will be in the ports tree for a while. Obtained from: smbfs-1.3.7-dev package.
2001-04-10 07:59:06 +00:00
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 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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