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/*-
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2011 Dag-Erling Smørgrav
* All rights reserved.
*
* This software was developed for the FreeBSD Project by ThinkSec AS and
* Network Associates Laboratories, the Security Research Division of
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
* ("CBOSS"), as part of the DARPA CHATS research program.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: pam_start.c 648 2013-03-05 17:54:27Z des $
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <security/pam_appl.h>
#include "openpam_impl.h"
#include "openpam_strlcpy.h"
#ifdef _SC_HOST_NAME_MAX
#define HOST_NAME_MAX sysconf(_SC_HOST_NAME_MAX)
#else
#define HOST_NAME_MAX 1024
#endif
/*
* XSSO 4.2.1
* XSSO 6 page 89
*
* Initiate a PAM transaction
*/
int
pam_start(const char *service,
const char *user,
const struct pam_conv *pam_conv,
pam_handle_t **pamh)
{
char hostname[HOST_NAME_MAX + 1];
struct pam_handle *ph;
int r;
ENTER();
if ((ph = calloc(1, sizeof *ph)) == NULL)
RETURNC(PAM_BUF_ERR);
if ((r = pam_set_item(ph, PAM_SERVICE, service)) != PAM_SUCCESS)
goto fail;
if (gethostname(hostname, sizeof hostname) != 0)
strlcpy(hostname, "localhost", sizeof hostname);
if ((r = pam_set_item(ph, PAM_HOST, hostname)) != PAM_SUCCESS)
goto fail;
if ((r = pam_set_item(ph, PAM_USER, user)) != PAM_SUCCESS)
goto fail;
if ((r = pam_set_item(ph, PAM_CONV, pam_conv)) != PAM_SUCCESS)
goto fail;
if ((r = openpam_configure(ph, service)) != PAM_SUCCESS)
goto fail;
*pamh = ph;
openpam_log(PAM_LOG_DEBUG, "pam_start(\"%s\") succeeded", service);
RETURNC(PAM_SUCCESS);
fail:
pam_end(ph, r);
RETURNC(r);
}
/*
* Error codes:
*
* =openpam_configure
* =pam_set_item
* !PAM_SYMBOL_ERR
* PAM_BUF_ERR
*/
/**
* The =pam_start function creates and initializes a PAM context.
*
* The =service argument specifies the name of the policy to apply, and is
* stored in the =PAM_SERVICE item in the created context.
*
* The =user argument specifies the name of the target user - the user the
* created context will serve to authenticate.
* It is stored in the =PAM_USER item in the created context.
*
* The =pam_conv argument points to a =struct pam_conv describing the
* conversation function to use; see =pam_conv for details.
*
* >pam_get_item
* >pam_set_item
* >pam_end
*/
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