51504aa997
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4443 42af7a65-404d-4744-a932-0658087f49c3
70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
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/* $OpenBSD: idgen.h,v 1.2 2008/06/25 00:55:53 djm Exp $ */
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/*
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*/
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/****************************************************************************
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* fs/nfs/rpc_idgen.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) 2008 Damien Miller <djm@mindrot.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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****************************************************************************/
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#ifndef __FS_NFS_RPC_IDGEN_H
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#define __FS_NFS_RPC_IDGEN_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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#define IDGEN32_ROUNDS 31
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#define IDGEN32_KEYLEN 32
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#define IDGEN32_REKEY_LIMIT 0x60000000
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#define IDGEN32_REKEY_TIME 600
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct idgen32_ctx
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{
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uint32_t id_counter;
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uint32_t id_offset;
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uint32_t id_hibit;
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uint8_t id_key[IDGEN32_KEYLEN];
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time_t id_rekey_time;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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void idgen32_init(struct idgen32_ctx *);
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uint32_t idgen32(struct idgen32_ctx *);
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#endif /* __FS_NFS_RPC_IDGEN_H */
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