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pam_deny.c revision 1.2.54.1 
      1 /*	$NetBSD: pam_deny.c,v 1.2.54.1 2014/08/20 00:02:19 tls Exp $	*/
      2 
      3 /*-
      4  * Copyright 2001 Mark R V Murray
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #ifdef __FreeBSD__
     31 __FBSDID("$FreeBSD: src/lib/libpam/modules/pam_deny/pam_deny.c,v 1.9 2002/04/12 22:27:19 des Exp $");
     32 #else
     33 __RCSID("$NetBSD: pam_deny.c,v 1.2.54.1 2014/08/20 00:02:19 tls Exp $");
     34 #endif
     35 
     36 #include <stddef.h>
     37 #include <string.h>
     38 #include <syslog.h>
     39 
     40 #define PAM_SM_AUTH
     41 #define PAM_SM_ACCOUNT
     42 #define PAM_SM_SESSION
     43 #define PAM_SM_PASSWORD
     44 
     45 #include <security/pam_appl.h>
     46 #include <security/pam_modules.h>
     47 
     48 PAM_EXTERN int
     49 pam_sm_authenticate(pam_handle_t *pamh, int flags __unused,
     50     int argc __unused, const char *argv[] __unused)
     51 {
     52 	const char *user;
     53 	int r;
     54 
     55 	if ((r = pam_get_user(pamh, &user, NULL)) != PAM_SUCCESS)
     56 		return (r);
     57 
     58 	return (PAM_AUTH_ERR);
     59 }
     60 
     61 PAM_EXTERN int
     62 pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused,
     63     int argc __unused, const char *argv[] __unused)
     64 {
     65 
     66 	return (PAM_CRED_ERR);
     67 }
     68 
     69 PAM_EXTERN int
     70 pam_sm_acct_mgmt(pam_handle_t *pamh __unused, int flags __unused,
     71     int argc __unused, const char *argv[] __unused)
     72 {
     73 
     74 	return (PAM_AUTH_ERR);
     75 }
     76 
     77 PAM_EXTERN int
     78 pam_sm_chauthtok(pam_handle_t *pamh __unused, int flags,
     79     int argc, const char *argv[])
     80 {
     81 	int prelim_ignore = 0;
     82 	int i;
     83 
     84 	for (i = 0; i < argc; i++) {
     85 		if (strcmp(argv[i], "prelim_ignore") == 0)
     86 			prelim_ignore = 1;
     87 		else if (strcmp(argv[i], "debug") == 0)
     88 			/* nothing */;
     89 		else
     90 			syslog(LOG_ERR, "illegal option %s", argv[i]);
     91 	}
     92 
     93 	if (flags & PAM_PRELIM_CHECK && prelim_ignore)
     94 		return (PAM_IGNORE);
     95 	else
     96 		return (PAM_AUTHTOK_ERR);
     97 }
     98 
     99 PAM_EXTERN int
    100 pam_sm_open_session(pam_handle_t *pamh __unused, int flags __unused,
    101     int argc __unused, const char *argv[] __unused)
    102 {
    103 
    104 	return (PAM_SESSION_ERR);
    105 }
    106 
    107 PAM_EXTERN int
    108 pam_sm_close_session(pam_handle_t *pamh __unused, int flags __unused,
    109     int argc __unused, const char *argv[] __unused)
    110 {
    111 
    112 	return (PAM_SESSION_ERR);
    113 }
    114 
    115 PAM_MODULE_ENTRY("pam_deny");
    116