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/****************************************************************************
* fs/nfs/nfs_mount.h
*
* 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.
* 4. 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_MOUNT_H
#define __FS_NFS_NFS_MOUNT_H
/****************************************************************************
* Included Files
****************************************************************************/
#include "nfs_proto.h"
#include <sys/socket.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Convert mount ptr to nfsmount ptr. */
#define VFSTONFS(mp) ((struct nfsmount *)((mp)->i_private))
/****************************************************************************
* Public Types
****************************************************************************/
/* Mount structure.
* One allocated on every NFS mount.
* Holds NFS specific information for mount.
*/
struct nfsmount
{
uint32_t nm_flag; /* Flags for soft/hard... */
uint32_t nm_state; /* Internal state flags */
struct nfsnode *nm_head; /* A list to all files opened on this mountpoint */
bool nm_mounted; /* true: The file system is ready */
sem_t nm_sem; /* Used to assume thread-safe access */
uint32_t nm_numgrps; /* Max. size of groupslist */
nfsfh_t nm_fh; /* File handle of root dir */
char nm_path[90]; /* server's path of the directory being mount */
uint32_t nm_fhsize; /* Size of root file handle (host order) */
struct nfs_fattr nm_fattr; /* nfs file attribute cache */
struct rpcclnt *nm_rpcclnt; /* rpc state */
struct socket *nm_so; /* Rpc socket */
uint8_t nm_sotype; /* Type of socket */
uint8_t nm_soproto; /* and protocol */
uint8_t nm_soflags; /* pr_flags for socket protocol */
struct sockaddr nm_nam; /* Addr of server */
uint32_t nm_timeo; /* Init timer for NFSMNT_DUMBTIMR */
uint32_t nm_retry; /* Max retries */
uint32_t nm_srtt[4]; /* Timers for rpcs */
uint32_t nm_sdrtt[4];
uint32_t nm_sent; /* Request send count */
uint32_t nm_cwnd; /* Request send window */
uint32_t nm_timeouts; /* Request timeouts */
uint32_t nm_deadthresh; /* Threshold of timeouts-->dead server */
uint32_t nm_rsize; /* Max size of read rpc */
uint32_t nm_wsize; /* Max size of write rpc */
uint32_t nm_readdirsize; /* Size of a readdir rpc */
uint32_t nm_readahead; /* Num. of blocks to readahead */
uint32_t nm_acdirmin; /* Directory attr cache min lifetime */
uint32_t nm_acdirmax; /* Directory attr cache max lifetime */
uint32_t nm_acregmin; /* Reg file attr cache min lifetime */
uint32_t nm_acregmax; /* Reg file attr cache max lifetime */
uint8_t nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
};
#endif
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