1 /* $NetBSD: pam_end.c,v 1.3 2017/05/06 19:50:09 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 5 * Copyright (c) 2004-2017 Dag-Erling Smørgrav 6 * All rights reserved. 7 * 8 * This software was developed for the FreeBSD Project by ThinkSec AS and 9 * Network Associates Laboratories, the Security Research Division of 10 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 11 * ("CBOSS"), as part of the DARPA CHATS research program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote 22 * products derived from this software without specific prior written 23 * permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * $OpenPAM: pam_end.c 938 2017-04-30 21:34:42Z des $ 38 */ 39 40 #ifdef HAVE_CONFIG_H 41 # include "config.h" 42 #endif 43 44 #include <sys/cdefs.h> 45 __RCSID("$NetBSD: pam_end.c,v 1.3 2017/05/06 19:50:09 christos Exp $"); 46 47 #include <stdlib.h> 48 49 #include <security/pam_appl.h> 50 51 #include "openpam_impl.h" 52 53 /* 54 * XSSO 4.2.1 55 * XSSO 6 page 42 56 * 57 * Terminate the PAM transaction 58 */ 59 60 int 61 pam_end(pam_handle_t *pamh, 62 int status) 63 { 64 pam_data_t *dp; 65 int i; 66 67 ENTER(); 68 if (pamh == NULL) 69 RETURNC(PAM_BAD_HANDLE); 70 71 /* clear module data */ 72 while ((dp = pamh->module_data) != NULL) { 73 if (dp->cleanup) 74 (dp->cleanup)(pamh, dp->data, status); 75 pamh->module_data = dp->next; 76 FREE(dp->name); 77 FREE(dp); 78 } 79 80 /* clear environment */ 81 while (pamh->env_count) { 82 --pamh->env_count; 83 FREE(pamh->env[pamh->env_count]); 84 } 85 FREE(pamh->env); 86 87 /* clear chains */ 88 openpam_clear_chains(pamh->chains); 89 90 /* clear items */ 91 for (i = 0; i < PAM_NUM_ITEMS; ++i) 92 pam_set_item(pamh, i, NULL); 93 94 FREE(pamh); 95 96 RETURNC(PAM_SUCCESS); 97 } 98 99 /* 100 * Error codes: 101 * 102 * PAM_BAD_HANDLE 103 */ 104 105 /** 106 * The =pam_end function terminates a PAM transaction and destroys the 107 * corresponding PAM context, releasing all resources allocated to it. 108 * 109 * The =status argument should be set to the error code returned by the 110 * last API call before the call to =pam_end. 111 */ 112