1/*- 2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3 * Copyright (c) 2004-2007 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 * $Id: openpam_nullconv.c 408 2007-12-21 11:36:24Z des $ 36 */ 37 38#include <sys/types.h> 39 40#include <security/pam_appl.h> 41 42#include "openpam_impl.h" 43 44/* 45 * OpenPAM extension 46 * 47 * Null conversation function 48 */ 49 50int 51openpam_nullconv(int n, 52 const struct pam_message **msg, 53 struct pam_response **resp, 54 void *data) 55{ 56 57 ENTER(); 58 (void)n; 59 (void)msg; 60 (void)resp; 61 (void)data; 62 RETURNC(PAM_CONV_ERR); 63} 64 65/* 66 * Error codes: 67 * 68 * PAM_CONV_ERR 69 */ 70 71/** 72 * The =openpam_nullconv function is a null conversation function suitable 73 * for applications that want to use PAM but don't support interactive 74 * dialog with the user. 75 * Such applications should set =PAM_AUTHTOK to whatever authentication 76 * token they've obtained on their own before calling =pam_authenticate 77 * and / or =pam_chauthtok, and their PAM configuration should specify the 78 * ;use_first_pass option for all modules that require access to the 79 * authentication token, to make sure they use =PAM_AUTHTOK rather than 80 * try to query the user. 81 * 82 * >openpam_ttyconv 83 * >pam_prompt 84 * >pam_set_item 85 * >pam_vprompt 86 */ 87