1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2002 Networks Associates Technology, Inc. 5 * All rights reserved. 6 * 7 * This software was developed for the FreeBSD Project by ThinkSec AS and 8 * NAI Labs, the Security Research Division of Network Associates, Inc. 9 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 10 * DARPA CHATS research program. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. The name of the author may not be used to endorse or promote 21 * products derived from this software without specific prior written 22 * permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#include <sys/cdefs.h> 38__FBSDID("$FreeBSD$"); 39 40#define _BSD_SOURCE 41 42#include <sys/types.h> 43#include <opie.h> 44#include <pwd.h> 45#include <unistd.h> 46#include <syslog.h> 47 48#define PAM_SM_AUTH 49 50#include <security/pam_appl.h> 51#include <security/pam_modules.h> 52#include <security/pam_mod_misc.h> 53 54PAM_EXTERN int 55pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, 56 int argc __unused, const char *argv[] __unused) 57{ 58 struct opie opie; 59 struct passwd *pwent; 60 const void *luser, *rhost; 61 int r; 62 63 r = pam_get_item(pamh, PAM_USER, &luser); 64 if (r != PAM_SUCCESS) 65 return (r); 66 if (luser == NULL) 67 return (PAM_SERVICE_ERR); 68 69 pwent = getpwnam(luser); 70 if (pwent == NULL || opielookup(&opie, __DECONST(char *, luser)) != 0) 71 return (PAM_SUCCESS); 72 73 r = pam_get_item(pamh, PAM_RHOST, &rhost); 74 if (r != PAM_SUCCESS) 75 return (r); 76 if (rhost == NULL || *(const char *)rhost == '\0') 77 rhost = openpam_get_option(pamh, "allow_local") ? 78 "" : "localhost"; 79 80 if (opieaccessfile(__DECONST(char *, rhost)) != 0 && 81 opiealways(pwent->pw_dir) != 0) 82 return (PAM_SUCCESS); 83 84 PAM_VERBOSE_ERROR("Refused; remote host is not in opieaccess"); 85 86 return (PAM_AUTH_ERR); 87} 88 89PAM_EXTERN int 90pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused, 91 int argc __unused, const char *argv[] __unused) 92{ 93 94 return (PAM_SUCCESS); 95} 96 97PAM_MODULE_ENTRY("pam_opieaccess"); 98