2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2013 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 * $OpenPAM: openpam_load.c 938 2017-04-30 21:34:42Z des $
46 #include <security/pam_appl.h>
48 #include "openpam_impl.h"
51 * Locate a matching dynamic or static module.
55 openpam_load_module(const char *modulename)
59 module = openpam_dynamic(modulename);
60 openpam_log(PAM_LOG_DEBUG, "%s dynamic %s",
61 (module == NULL) ? "no" : "using", modulename);
63 #ifdef OPENPAM_STATIC_MODULES
64 /* look for a static module */
65 if (module == NULL && strchr(modulename, '/') == NULL) {
66 module = openpam_static(modulename);
67 openpam_log(PAM_LOG_DEBUG, "%s static %s",
68 (module == NULL) ? "no" : "using", modulename);
72 openpam_log(PAM_LOG_ERROR, "no %s found", modulename);
81 * XXX highly thread-unsafe
85 openpam_release_module(pam_module_t *module)
90 if (module->dlh == NULL)
94 openpam_log(PAM_LOG_DEBUG, "releasing %s", module->path);
101 * Destroy a chain, freeing all its links and releasing the modules
106 openpam_destroy_chain(pam_chain_t *chain)
111 openpam_destroy_chain(chain->next);
113 FREEV(chain->optc, chain->optv);
114 openpam_release_module(chain->module);
115 chain->module = NULL;
121 * Clear the chains and release the modules
125 openpam_clear_chains(pam_chain_t *policy[])
129 for (i = 0; i < PAM_NUM_FACILITIES; ++i) {
130 openpam_destroy_chain(policy[i]);