2012-03-21 21:51:01 -03:00
|
|
|
/****************************************************************************
|
2012-03-26 21:23:40 -03:00
|
|
|
* fs/nfs/nfs_node.h
|
2012-03-21 21:51:01 -03:00
|
|
|
*
|
|
|
|
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
|
|
|
* Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved.
|
|
|
|
* Author: Jose Pablo Rojas Vargas <jrojas@nx-engineering.com>
|
|
|
|
*
|
|
|
|
* Leveraged from OpenBSD:
|
|
|
|
*
|
|
|
|
* Copyright (c) 1989, 1993
|
|
|
|
* The Regents of the University of California. All rights reserved.
|
|
|
|
*
|
|
|
|
* This code is derived from software contributed to Berkeley by
|
|
|
|
* Rick Macklem at The University of Guelph.
|
|
|
|
*
|
|
|
|
* 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. Neither the name of the University nor the names of its contributors
|
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
* without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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_NFS_NFS_NODE_H
|
|
|
|
#define __FS_NFS_NFS_NODE_H
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Included Files
|
|
|
|
****************************************************************************/
|
|
|
|
|
2012-04-23 16:55:32 -03:00
|
|
|
#include <nuttx/fs/nfs.h>
|
2012-03-21 21:51:01 -03:00
|
|
|
|
2012-04-23 20:21:30 -03:00
|
|
|
#include "nfs.h"
|
|
|
|
|
2012-03-21 21:51:01 -03:00
|
|
|
/****************************************************************************
|
|
|
|
* Pre-processor Definitions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/* Values for n_commitflags */
|
|
|
|
|
|
|
|
#define NFS_COMMIT_PUSH_VALID 0x0001/* push range valid */
|
|
|
|
#define NFS_COMMIT_PUSHED_VALID 0x0002/* pushed range valid */
|
|
|
|
|
|
|
|
#define n_atim n_un1.nf_atim
|
|
|
|
#define n_mtim n_un2.nf_mtim
|
|
|
|
#define n_cookieverf n_un1.nd_cookieverf
|
|
|
|
#define n_direofoffset n_un2.nd_direof
|
|
|
|
|
|
|
|
/* Flags for n_flag */
|
|
|
|
|
|
|
|
#define NFLUSHWANT 0x0001/* Want wakeup from a flush in prog. */
|
|
|
|
#define NFLUSHINPROG 0x0002/* Avoid multiple calls to vinvalbuf() */
|
|
|
|
#define NMODIFIED 0x0004/* Might have a modified buffer in bio */
|
|
|
|
#define NWRITEERR 0x0008/* Flag write errors so close will know */
|
|
|
|
#define NACC 0x0100/* Special file accessed */
|
|
|
|
#define NUPD 0x0200/* Special file updated */
|
|
|
|
#define NCHG 0x0400/* Special file times changed */
|
|
|
|
|
|
|
|
#define NFS_INVALIDATE_ATTRCACHE(np) ((np)->n_attrstamp = 0)
|
|
|
|
|
|
|
|
/* Convert between nfsnode pointers and vnode pointers */
|
|
|
|
|
|
|
|
#define VTONFS(vp) ((struct nfsnode *)(vp)->f_priv)
|
|
|
|
#define NFSTOV(np) ((np)->n_vnode)
|
|
|
|
|
2012-04-18 20:31:47 -03:00
|
|
|
#define n_atim n_un1.nf_atim
|
|
|
|
#define n_mtim n_un2.nf_mtim
|
|
|
|
#define n_sillyrename n_un3.nf_silly
|
|
|
|
#define n_cookieverf n_un1.nd_cookieverf
|
|
|
|
#define n4_cookieverf n_un1.nd4_cookieverf
|
|
|
|
#define n_direofoffset n_un2.nd_direof
|
|
|
|
#define n_cookies n_un3.nd_cook
|
|
|
|
|
2012-03-21 21:51:01 -03:00
|
|
|
/****************************************************************************
|
|
|
|
* Public Types
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/* Silly rename structure that hangs off the nfsnode until the name
|
|
|
|
* can be removed by nfs_inactive()
|
|
|
|
|
|
|
|
struct sillyrename
|
|
|
|
{
|
|
|
|
struct ucred *s_cred;
|
|
|
|
struct vnode *s_dvp;
|
|
|
|
long s_namlen;
|
|
|
|
char s_name[24];
|
|
|
|
};
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* The nfsnode is the nfs equivalent to ufs's inode. Any similarity
|
|
|
|
* is purely coincidental.
|
|
|
|
* There is a unique nfsnode allocated for each active file,
|
|
|
|
* each current directory, each mounted-on file, text file, and the root.
|
|
|
|
* An nfsnode is 'named' by its file handle. (nget/nfs_node.c)
|
|
|
|
* If this structure exceeds 256 bytes (it is currently 256 using 4.4BSD-Lite
|
|
|
|
* type definitions), file handles of > 32 bytes should probably be split out
|
|
|
|
* into a separate malloc()'d data structure. (Reduce the size of nfsfh_t by
|
|
|
|
* changing the definition in sys/mount.h of NFS_SMALLFH.)
|
|
|
|
* NB: Hopefully the current order of the fields is such that everything will
|
|
|
|
* be well aligned and, therefore, tightly packed.
|
|
|
|
*/
|
|
|
|
|
|
|
|
struct nfsnode
|
|
|
|
{
|
2012-04-09 20:35:45 -03:00
|
|
|
struct nfsnode *n_next; /* Retained in a singly linked list filehandle/node tree. */
|
|
|
|
bool n_open; /* true: The file is (still) open */
|
|
|
|
uint64_t n_size; /* Current size of file */
|
|
|
|
struct nfs_fattr n_fattr; /* nfs file attribute cache */
|
|
|
|
nfstype nfsv3_type; /* File type */
|
|
|
|
time_t n_attrstamp; /* Attr. cache timestamp */
|
|
|
|
struct timespec n_mtime; /* Prev modify time. */
|
|
|
|
time_t n_ctime; /* Prev create time. */
|
2012-04-18 20:31:47 -03:00
|
|
|
nfsfh_t n_fhp; /* NFS File Handle */
|
2012-04-09 20:35:45 -03:00
|
|
|
struct inode *n_inode; /* associated inode */
|
|
|
|
int n_error; /* Save write error value */
|
2012-03-21 21:51:01 -03:00
|
|
|
union
|
|
|
|
{
|
2012-04-09 20:35:45 -03:00
|
|
|
struct timespec nf_atim; /* Special file times */
|
|
|
|
nfsuint64 nd_cookieverf; /* Cookie verifier (dir only) */
|
2012-03-21 21:51:01 -03:00
|
|
|
} n_un1;
|
|
|
|
union
|
|
|
|
{
|
2012-04-09 20:35:45 -03:00
|
|
|
struct timespec nf_mtim;
|
2012-04-18 20:31:47 -03:00
|
|
|
off_t nd_direof; /* Directory EOF offset cache */
|
2012-03-21 21:51:01 -03:00
|
|
|
} n_un2;
|
2012-04-09 20:35:45 -03:00
|
|
|
short n_fhsize; /* size in bytes, of fh */
|
|
|
|
short n_flag; /* Flag for locking.. */
|
|
|
|
nfsfh_t n_fh; /* Small File Handle */
|
|
|
|
time_t n_accstamp; /* Access cache timestamp */
|
|
|
|
uid_t n_accuid; /* Last access requester */
|
|
|
|
int n_accmode; /* Last mode requested */
|
|
|
|
int n_accerror; /* Last returned error */
|
2012-04-23 16:55:32 -03:00
|
|
|
|
|
|
|
//off_t n_pushedlo; /* 1st blk in commited range */
|
|
|
|
//off_t n_pushedhi; /* Last block in range */
|
|
|
|
//off_t n_pushlo; /* 1st block in commit range */
|
|
|
|
//off_t n_pushhi; /* Last block in range */
|
2012-04-09 20:35:45 -03:00
|
|
|
//struct rwlock n_commitlock; /* Serialize commits */
|
2012-04-23 16:55:32 -03:00
|
|
|
//int n_commitflags;
|
2012-03-21 21:51:01 -03:00
|
|
|
};
|
|
|
|
|
|
|
|
#endif /* __FS_NFS_NFS_NODE_H */
|