2014-07-04 11:18:53 +00:00
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/*-
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* Copyright (c) 2013 Universitetet i Oslo
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* All rights reserved.
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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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* 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. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* Author: Dag-Erling Smørgrav <des@des.no>
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* Sponsor: the University of Oslo
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*
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2014-07-04 11:20:46 +00:00
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* $Cryb$
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2014-07-04 11:18:53 +00:00
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*/
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#include "cryb/impl.h"
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#include <sys/mman.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <cryb/oath.h>
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/*
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* OATH
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*
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* Allocates an OATH key structure
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*/
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struct oath_key *
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oath_key_alloc(void)
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{
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struct oath_key *key;
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int prot, flags;
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prot = PROT_READ|PROT_WRITE;
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flags = MAP_ANON;
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#ifdef MAP_NOCORE
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flags |= MAP_NOCORE;
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#endif
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if ((key = mmap(NULL, sizeof *key, prot, flags, -1, 0)) != NULL) {
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memset(key, 0, sizeof *key);
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key->mapped = 1;
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if (mlock(key, sizeof *key) == 0)
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key->locked = 1;
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} else {
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/* openpam_log(PAM_LOG_ERROR, "mmap(): %m"); */
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if ((key = calloc(sizeof *key, 1)) == NULL)
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/* openpam_log(PAM_LOG_ERROR, "malloc(): %m") */;
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}
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return (key);
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}
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/**
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* The =oath_key_alloc function allocates and initializes an OATH key
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* structure.
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*
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* Keys allocated with =oath_key_alloc must be freed using =oath_key_free.
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*
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* >oath_key_free
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*
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* AUTHOR UIO
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*/
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