forked from Archive/PX4-Autopilot
150 lines
6.0 KiB
C
150 lines
6.0 KiB
C
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/****************************************************************************
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* fs/nfs/nfs.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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* Gregory Nutt <gnutt@nuttx.org>
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*
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* Leveraged from OpenBSD:
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*
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* Copyright (c) 1989, 1993, 1995
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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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* 3. 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_H
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#define __FS_NFS_NFS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "nfs_mount.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NFS_TICKINTVL MSEC_PER_TICK /* Smallest that we can get */
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#define NFS_TICKS 1 /* Number of system ticks */
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#define NFS_HZ CLOCKS_PER_SEC /* Ticks/sec */
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#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
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#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
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#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
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#define NFS_TIMEOUTMUL 2 /* Timeout/Delay multiplier */
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#define NFS_MAXREXMIT 100 /* Stop counting after this many */
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#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
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#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
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#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
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#define NFS_READDIRSIZE 8192 /* Def. readdir size */
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#define NFS_NPROCS 23
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/* Ideally, NFS_DIRBLKSIZ should be bigger, but I've seen servers with
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* broken NFS/ethernet drivers that won't work with anything bigger (Linux..)
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*/
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#define NFS_DIRBLKSIZ 1024 /* Must be a multiple of DIRBLKSIZ */
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/* Increment NFS statistics */
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#ifdef CONFIG_NFS_STATISTICS
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# define nfs_statistics(n) do { nfsstats.rpccnt[n]++; } while (0)
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#else
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# define nfs_statistics(n)
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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extern uint32_t nfs_true;
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extern uint32_t nfs_false;
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extern uint32_t nfs_xdrneg1;
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#ifdef CONFIG_NFS_STATISTICS
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extern struct nfsstats nfsstats;
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* NFS statistics structure */
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struct nfsstats
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{
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uint64_t rpccnt[NFS_NPROCS];
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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EXTERN void nfs_semtake(FAR struct nfsmount *nmp);
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EXTERN void nfs_semgive(FAR struct nfsmount *nmp);
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EXTERN int nfs_checkmount(FAR struct nfsmount *nmp);
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EXTERN int nfs_fsinfo(FAR struct nfsmount *nmp);
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EXTERN int nfs_request(struct nfsmount *nmp, int procnum,
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FAR void *request, size_t reqlen,
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FAR void *response, size_t resplen);
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EXTERN int nfs_lookup(FAR struct nfsmount *nmp, FAR const char *filename,
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FAR struct file_handle *fhandle,
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FAR struct nfs_fattr *obj_attributes,
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FAR struct nfs_fattr *dir_attributes);
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EXTERN int nfs_findnode(FAR struct nfsmount *nmp, FAR const char *relpath,
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FAR struct file_handle *fhandle,
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FAR struct nfs_fattr *obj_attributes,
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FAR struct nfs_fattr *dir_attributes);
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EXTERN int nfs_finddir(FAR struct nfsmount *nmp, FAR const char *relpath,
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FAR struct file_handle *fhandle,
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FAR struct nfs_fattr *attributes, FAR char *filename);
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EXTERN void nfs_attrupdate(FAR struct nfsnode *np,
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FAR struct nfs_fattr *attributes);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* _NFS_NFS_H */
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