1/**************************************************************************** 2 * fs/nfs/nfs_node.h 3 * 4 * Copyright (C) 2012-2013, 2017 Gregory Nutt. All rights reserved. 5 * Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved. 6 * Author: Jose Pablo Rojas Vargas <jrojas@nx-engineering.com> 7 * Gregory Nutt <gnutt@nuttx.org> 8 * 9 * Leveraged from OpenBSD: 10 * 11 * Copyright (c) 1989, 1993 12 * The Regents of the University of California. All rights reserved. 13 * 14 * This code is derived from software contributed to Berkeley by 15 * Rick Macklem at The University of Guelph. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer. 23 * 2. Redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in the 25 * documentation and/or other materials provided with the distribution. 26 * 3. Neither the name of the University nor the names of its contributors 27 * may be used to endorse or promote products derived from this software 28 * without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 ****************************************************************************/ 43 44#ifndef __FS_NFS_NFS_NODE_H 45#define __FS_NFS_NFS_NODE_H 46 47/**************************************************************************** 48 * Included Files 49 ****************************************************************************/ 50 51#include "nfs_proto.h" 52 53#ifdef __cplusplus 54#if __cplusplus 55extern "C" { 56#endif /* __cplusplus */ 57#endif /* __cplusplus */ 58 59/**************************************************************************** 60 * Pre-processor Definitions 61 ****************************************************************************/ 62 63/* Flags for struct nfsnode n_flag */ 64 65#define NFSNODE_OPEN (1 << 0) /* File is still open */ 66#define NFSNODE_MODIFIED (1 << 1) /* Might have a modified buffer */ 67 68/**************************************************************************** 69 * Public Types 70 ****************************************************************************/ 71 72/* There is a unique nfsnode allocated for each active file. An nfsnode is 73 * 'named' by its file handle. 74 */ 75 76struct nfsnode 77{ 78 struct nfsnode *n_next; /* Retained in a singly linked list. */ 79 uint8_t n_crefs; /* Reference count (for nfs_dup) */ 80 uint8_t n_type; /* File type */ 81 uint8_t n_fhsize; /* Size in bytes of the file handle */ 82 uint8_t n_pfhsize; /* Size in bytes of the file handle of parent */ 83 uint8_t n_flags; /* Node flags */ 84 uint16_t n_mode; /* File mode for fstat() */ 85 time_t n_atime; /* File access time */ 86 time_t n_ctime; /* File creation time */ 87 struct timespec n_timestamp; /* Timestamp (modification time) */ 88 nfsfh_t n_fhandle; /* NFS File Handle */ 89 nfsfh_t n_pfhandle; /* NFS File Handle of parent */ 90 uint64_t n_size; /* Current size of file */ 91 int n_oflags; /* Flags provided when file was opened */ 92 loff_t n_fpos; /* NFS File position */ 93 struct file *n_filep; /* File pointer from VFS */ 94 char *n_name; 95}; 96 97#ifdef __cplusplus 98#if __cplusplus 99} 100#endif /* __cplusplus */ 101#endif /* __cplusplus */ 102 103#endif /* __FS_NFS_NFS_NODE_H */ 104