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/*
* ipmi_auth.c
*
* MontaVista IPMI authentication
*
* Author: MontaVista Software, Inc.
* Corey Minyard <minyard@mvista.com>
* source@mvista.com
*
* Copyright 2002,2003,2004,2005 MontaVista Software Inc.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* Lesser General Public License (GPL) Version 2 or the modified BSD
* license below. The following disclamer applies to both licenses:
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
*
* GNU Lesser General Public Licence
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Modified BSD Licence
*
* 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.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*/
#include <string.h>
#include <errno.h>
#include <OpenIPMI/ipmi_auth.h>
#include <OpenIPMI/ipmi_err.h>
#include <OpenIPMI/internal/md2.h>
#include <OpenIPMI/internal/md5.h>
struct ipmi_authdata_s
{
void *info;
void *(*mem_alloc)(void *info, int size);
void (*mem_free)(void *info, void *data);
unsigned char data[16];
};
static int
pw_authcode_init(unsigned char *password,
ipmi_authdata_t *handle,
void *info,
void *(*mem_alloc)(void *info, int size),
void (*mem_free)(void *info, void *data))
{
struct ipmi_authdata_s *data;
data = mem_alloc(info, sizeof(*data));
if (!data)
return ENOMEM;
data->info = info;
data->mem_alloc = mem_alloc;
data->mem_free = mem_free;
memcpy(data->data, password, 16);
*handle = data;
return 0;
}
static int
pw_authcode_gen(ipmi_authdata_t handle, ipmi_auth_sg_t data[], void *output)
{
memcpy(output, handle->data, 16);
return 0;
}
static int
pw_authcode_check(ipmi_authdata_t handle, ipmi_auth_sg_t data[], void *code)
{
if (strncmp((char *) handle->data, code, 16) != 0)
return EINVAL;
return 0;
}
static void
pw_authcode_cleanup(ipmi_authdata_t handle)
{
memset(handle->data, 0, sizeof(handle->data));
handle->mem_free(handle->info, handle);
}
static int
no_authcode_init(unsigned char *password,
ipmi_authdata_t *handle,
void *info,
void *(*mem_alloc)(void *info, int size),
void (*mem_free)(void *info, void *data))
{
return 0;
}
static int
no_authcode_gen(ipmi_authdata_t handle, ipmi_auth_sg_t data[], void *output)
{
memset(output, 0, 16);
return 0;
}
static int
no_authcode_check(ipmi_authdata_t handle, ipmi_auth_sg_t data[], void *code)
{
return 0;
}
static void
no_authcode_cleanup(ipmi_authdata_t handle)
{
}
ipmi_auth_t ipmi_auths[MAX_IPMI_AUTHS] =
{
{ no_authcode_init, no_authcode_gen,
no_authcode_check, no_authcode_cleanup },
{ ipmi_md2_authcode_init, ipmi_md2_authcode_gen,
ipmi_md2_authcode_check, ipmi_md2_authcode_cleanup },
{ ipmi_md5_authcode_init, ipmi_md5_authcode_gen,
ipmi_md5_authcode_check, ipmi_md5_authcode_cleanup },
{ NULL, NULL, NULL, NULL },
{ pw_authcode_init, pw_authcode_gen,
pw_authcode_check, pw_authcode_cleanup },
{ NULL, NULL, NULL, NULL },
};
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