106 lines
4.9 KiB
C
106 lines
4.9 KiB
C
/****************************************************************************
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* fs/nfs/nfs_mount.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved.
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* Author: Jose Pablo Rojas Vargas <jrojas@nx-engineering.com>
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*
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* Leveraged from OpenBSD:
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*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __FS_NFS_NFS_MOUNT_H
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#define __FS_NFS_NFS_MOUNT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Convert mount ptr to nfsmount ptr. */
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#define VFSTONFS(mp) ((struct nfsmount *)((mp)->i_private))
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Mount structure.
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* One allocated on every NFS mount.
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* Holds NFS specific information for mount.
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*/
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struct nfsmount
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{
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int nm_flag; /* Flags for soft/hard... */
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int nm_state; /* Internal state flags */
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//struct inode *nm_blkdriver; /* Vfs structure for this filesystem */
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struct nfsnode *nm_head; /* A list to all files opened on this mountpoint */
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bool nm_mounted; /* true: The file system is ready */
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sem_t nm_sem; /* Used to assume thread-safe access */
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int nm_numgrps; /* Max. size of groupslist */
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nfsfh_t nm_fh; /* File handle of root dir */
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int nm_fhsize; /* Size of root file handle */
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struct rpcclnt *nm_rpcclnt; /* rpc state */
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struct socket *nm_so; /* Rpc socket */
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uint8_t nm_sotype; /* Type of socket */
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uint8_t nm_soproto; /* and protocol */
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uint8_t nm_soflags; /* pr_flags for socket protocol */
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struct sockaddr *nm_nam; /* Addr of server */
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int nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
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int nm_retry; /* Max retries */
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int nm_srtt[4]; /* Timers for rpcs */
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int nm_sdrtt[4];
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int nm_sent; /* Request send count */
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int nm_cwnd; /* Request send window */
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int nm_timeouts; /* Request timeouts */
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int nm_deadthresh; /* Threshold of timeouts-->dead server */
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int nm_rsize; /* Max size of read rpc */
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int nm_wsize; /* Max size of write rpc */
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int nm_readdirsize; /* Size of a readdir rpc */
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int nm_readahead; /* Num. of blocks to readahead */
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int nm_acdirmin; /* Directory attr cache min lifetime */
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int nm_acdirmax; /* Directory attr cache max lifetime */
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int nm_acregmin; /* Reg file attr cache min lifetime */
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int nm_acregmax; /* Reg file attr cache max lifetime */
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unsigned char *nm_verf; /* V3 write verifier */
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//char nm_mntonname[90]; /* directory on which mounted */
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//uint8_t *nm_buffer; /* This is an allocated buffer to hold one sector*/
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};
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#endif
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