2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2007 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: openpam_load.c 408 2007-12-21 11:36:24Z des $
42 #include <security/pam_appl.h>
44 #include "openpam_impl.h"
46 const char *_pam_func_name[PAM_NUM_PRIMITIVES] = {
55 const char *_pam_sm_func_name[PAM_NUM_PRIMITIVES] = {
56 "pam_sm_authenticate",
59 "pam_sm_open_session",
60 "pam_sm_close_session",
65 * Locate a matching dynamic or static module.
69 openpam_load_module(const char *path)
73 module = openpam_dynamic(path);
74 openpam_log(PAM_LOG_DEBUG, "%s dynamic %s",
75 (module == NULL) ? "no" : "using", path);
77 #ifdef OPENPAM_STATIC_MODULES
78 /* look for a static module */
79 if (module == NULL && strchr(path, '/') == NULL) {
80 module = openpam_static(path);
81 openpam_log(PAM_LOG_DEBUG, "%s static %s",
82 (module == NULL) ? "no" : "using", path);
86 openpam_log(PAM_LOG_ERROR, "no %s found", path);
95 * XXX highly thread-unsafe
99 openpam_release_module(pam_module_t *module)
103 if (module->dlh == NULL)
106 dlclose(module->dlh);
107 openpam_log(PAM_LOG_DEBUG, "releasing %s", module->path);
114 * Destroy a chain, freeing all its links and releasing the modules
119 openpam_destroy_chain(pam_chain_t *chain)
123 openpam_destroy_chain(chain->next);
125 while (chain->optc) {
127 FREE(chain->optv[chain->optc]);
130 openpam_release_module(chain->module);
131 chain->module = NULL;
137 * Clear the chains and release the modules
141 openpam_clear_chains(pam_chain_t *policy[])
145 for (i = 0; i < PAM_NUM_FACILITIES; ++i) {
146 openpam_destroy_chain(policy[i]);