1 /*- 2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3 * Copyright (c) 2004-2017 Dag-Erling Smørgrav 4 * All rights reserved. 5 * 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. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 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 21 * permission. 22 * 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 33 * SUCH DAMAGE. 34 */ 35 36 #ifdef HAVE_CONFIG_H 37 # include "config.h" 38 #endif 39 40 #include <sys/param.h> 41 42 #include <security/pam_appl.h> 43 44 #include "openpam_impl.h" 45 46 /* 47 * XSSO 4.2.1 48 * XSSO 6 page 38 49 * 50 * Perform password related functions within the PAM framework 51 */ 52 53 int 54 pam_chauthtok(pam_handle_t *pamh, 55 int flags) 56 { 57 int r; 58 59 ENTER(); 60 if (flags & ~(PAM_SILENT|PAM_CHANGE_EXPIRED_AUTHTOK)) 61 RETURNC(PAM_BAD_CONSTANT); 62 r = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK, 63 flags | PAM_PRELIM_CHECK); 64 if (r == PAM_SUCCESS) 65 r = openpam_dispatch(pamh, PAM_SM_CHAUTHTOK, 66 flags | PAM_UPDATE_AUTHTOK); 67 pam_set_item(pamh, PAM_OLDAUTHTOK, NULL); 68 pam_set_item(pamh, PAM_AUTHTOK, NULL); 69 RETURNC(r); 70 } 71 72 /* 73 * Error codes: 74 * 75 * =openpam_dispatch 76 * =pam_sm_chauthtok 77 * !PAM_IGNORE 78 * PAM_BAD_CONSTANT 79 */ 80 81 /** 82 * The =pam_chauthtok function attempts to change the authentication token 83 * for the user associated with the pam context specified by the =pamh 84 * argument. 85 * 86 * The =flags argument is the binary or of zero or more of the following 87 * values: 88 * 89 * =PAM_SILENT: 90 * Do not emit any messages. 91 * =PAM_CHANGE_EXPIRED_AUTHTOK: 92 * Change only those authentication tokens that have expired. 93 * 94 * If any other bits are set, =pam_chauthtok will return =PAM_BAD_CONSTANT. 95 */ 96