2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2011 Dag-Erling Smørgrav
6 * This software was developed for the FreeBSD Project by ThinkSec AS and
7 * Network Associates Laboratories, the Security Research Division of
8 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
9 * ("CBOSS"), as part of the DARPA CHATS research program.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote
20 * products derived from this software without specific prior written
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * $Id: pam_start.c 648 2013-03-05 17:54:27Z des $
46 #include <security/pam_appl.h>
48 #include "openpam_impl.h"
49 #include "openpam_strlcpy.h"
51 #ifdef _SC_HOST_NAME_MAX
52 #define HOST_NAME_MAX sysconf(_SC_HOST_NAME_MAX)
54 #define HOST_NAME_MAX 1024
61 * Initiate a PAM transaction
65 pam_start(const char *service,
67 const struct pam_conv *pam_conv,
70 char hostname[HOST_NAME_MAX + 1];
71 struct pam_handle *ph;
75 if ((ph = calloc(1, sizeof *ph)) == NULL)
77 if ((r = pam_set_item(ph, PAM_SERVICE, service)) != PAM_SUCCESS)
79 if (gethostname(hostname, sizeof hostname) != 0)
80 strlcpy(hostname, "localhost", sizeof hostname);
81 if ((r = pam_set_item(ph, PAM_HOST, hostname)) != PAM_SUCCESS)
83 if ((r = pam_set_item(ph, PAM_USER, user)) != PAM_SUCCESS)
85 if ((r = pam_set_item(ph, PAM_CONV, pam_conv)) != PAM_SUCCESS)
87 if ((r = openpam_configure(ph, service)) != PAM_SUCCESS)
90 openpam_log(PAM_LOG_DEBUG, "pam_start(\"%s\") succeeded", service);
107 * The =pam_start function creates and initializes a PAM context.
109 * The =service argument specifies the name of the policy to apply, and is
110 * stored in the =PAM_SERVICE item in the created context.
112 * The =user argument specifies the name of the target user - the user the
113 * created context will serve to authenticate.
114 * It is stored in the =PAM_USER item in the created context.
116 * The =pam_conv argument points to a =struct pam_conv describing the
117 * conversation function to use; see =pam_conv for details.