123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/*-
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* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
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* Copyright (c) 2004-2011 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by ThinkSec AS and
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* Network Associates Laboratories, the Security Research Division of
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* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
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* ("CBOSS"), as part of the DARPA CHATS research program.
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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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* $Id: pam_start.c 503 2011-12-18 14:00:33Z des $
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <security/pam_appl.h>
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#include "openpam_impl.h"
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#include "openpam_strlcpy.h"
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#ifdef _SC_HOST_NAME_MAX
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#define HOST_NAME_MAX sysconf(_SC_HOST_NAME_MAX)
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#else
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#define HOST_NAME_MAX 1024
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#endif
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/*
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* XSSO 4.2.1
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* XSSO 6 page 89
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*
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* Initiate a PAM transaction
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*/
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int
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pam_start(const char *service,
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const char *user,
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const struct pam_conv *pam_conv,
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pam_handle_t **pamh)
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{
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char hostname[HOST_NAME_MAX + 1];
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struct pam_handle *ph;
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int r;
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ENTER();
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if ((ph = calloc(1, sizeof *ph)) == NULL)
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RETURNC(PAM_BUF_ERR);
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if ((r = pam_set_item(ph, PAM_SERVICE, service)) != PAM_SUCCESS)
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goto fail;
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if (gethostname(hostname, sizeof hostname) != 0)
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strlcpy(hostname, "localhost", sizeof hostname);
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if ((r = pam_set_item(ph, PAM_HOST, hostname)) != PAM_SUCCESS)
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goto fail;
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if ((r = pam_set_item(ph, PAM_USER, user)) != PAM_SUCCESS)
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goto fail;
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if ((r = pam_set_item(ph, PAM_CONV, pam_conv)) != PAM_SUCCESS)
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goto fail;
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if ((r = openpam_configure(ph, service)) != PAM_SUCCESS)
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goto fail;
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*pamh = ph;
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openpam_log(PAM_LOG_DEBUG, "pam_start(\"%s\") succeeded", service);
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RETURNC(PAM_SUCCESS);
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fail:
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pam_end(ph, r);
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RETURNC(r);
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}
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/*
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* Error codes:
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*
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* =openpam_configure
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* =pam_set_item
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* !PAM_SYMBOL_ERR
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* PAM_BUF_ERR
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*/
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/**
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* The =pam_start function creates and initializes a PAM context.
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*
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* The =service argument specifies the name of the policy to apply, and is
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* stored in the =PAM_SERVICE item in the created context.
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*
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* The =user argument specifies the name of the target user - the user the
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* created context will serve to authenticate.
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* It is stored in the =PAM_USER item in the created context.
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*
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* The =pam_conv argument points to a =struct pam_conv describing the
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* conversation function to use; see =pam_conv for details.
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*
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* >pam_get_item
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* >pam_set_item
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* >pam_end
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*/
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