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* $Id: pam_unix_sess.c,v 1.1 2001/04/29 04:17:39 hartmans Exp $
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* Copyright Alexander O. Yuriev, 1996. All rights reserved.
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* Copyright Jan R�korajski, 1999. All rights reserved.
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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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* 1. Redistributions of source code must retain the above copyright
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* notice, and the entire permission notice in its entirety,
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* including the disclaimer of warranties.
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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
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* ALTERNATIVELY, this product may be distributed under the terms of
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* the GNU Public License, in which case the provisions of the GPL are
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* required INSTEAD OF the above restrictions. (This clause is
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* necessary due to a potential bad interaction between the GPL and
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* the restrictions contained in a BSD-style copyright.)
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <security/_pam_aconf.h>
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#include <sys/types.h>
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/* indicate the following groups are defined */
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#define PAM_SM_SESSION
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#include <security/_pam_macros.h>
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#include <security/pam_modules.h>
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#include <security/pam_appl.h>
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#endif /* LINUX_PAM */
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* PAM framework looks for these entry-points to pass control to the
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PAM_EXTERN int pam_sm_open_session(pam_handle_t * pamh, int flags,
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int argc, const char **argv)
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char *user_name, *service;
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ctrl = _set_ctrl(pamh, flags, NULL, argc, argv);
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retval = pam_get_item(pamh, PAM_USER, (void *) &user_name);
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if (user_name == NULL || retval != PAM_SUCCESS) {
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_log_err(LOG_CRIT, pamh,
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"open_session - error recovering username");
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return PAM_SESSION_ERR; /* How did we get authenticated with
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retval = pam_get_item(pamh, PAM_SERVICE, (void *) &service);
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if (service == NULL || retval != PAM_SUCCESS) {
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_log_err(LOG_CRIT, pamh,
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"open_session - error recovering service");
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return PAM_SESSION_ERR;
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_log_err(LOG_INFO, pamh, "session opened for user %s by %s(uid=%d)"
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,PAM_getlogin() == NULL ? "" : PAM_getlogin(), getuid());
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PAM_EXTERN int pam_sm_close_session(pam_handle_t * pamh, int flags,
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int argc, const char **argv)
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char *user_name, *service;
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ctrl = _set_ctrl(pamh, flags, NULL, argc, argv);
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retval = pam_get_item(pamh, PAM_USER, (void *) &user_name);
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if (user_name == NULL || retval != PAM_SUCCESS) {
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_log_err(LOG_CRIT, pamh,
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"close_session - error recovering username");
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return PAM_SESSION_ERR; /* How did we get authenticated with
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retval = pam_get_item(pamh, PAM_SERVICE, (void *) &service);
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if (service == NULL || retval != PAM_SUCCESS) {
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_log_err(LOG_CRIT, pamh,
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"close_session - error recovering service");
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return PAM_SESSION_ERR;
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_log_err(LOG_INFO, pamh, "session closed for user %s"
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/* static module data */
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struct pam_module _pam_unix_session_modstruct = {
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pam_sm_close_session,