pam_modules/deny/deny.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <strings.h>
#include <syslog.h>

#include <security/pam_appl.h>
#include <security/pam_modules.h>

/*
 * pam_deny - PAM service module that returns the default error code for
 *        all service module types.
 *
 *  Entry   argv = debug, syslog call LOG_AUTH | LOG_DEBUG.
 *
 *  Exit    PAM_* appropriate for service module type.
 *
 *  Uses    PAM_USER, PAM_SERVICE
 */

static void
debug(pam_handle_t *pamh, int flags, int argc, const char **argv, char *mod)
{
    char *user;
    char *service;

    if (argc < 1 || strcmp(argv[0], "debug") != 0)
        return;

    (void) pam_get_item(pamh, PAM_SERVICE, (void **)&service);
    (void) pam_get_item(pamh, PAM_USER, (void **)&user);

    syslog(LOG_AUTH | LOG_DEBUG, "%s pam_deny:%s(%x) for %s",
        service ? service : "No Service Specified", mod, flags,
        user ? user : "No User Specified");
}

int
pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_authenticate");
    return (PAM_AUTH_ERR);
}

int
pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_setcred");
    return (PAM_CRED_ERR);
}

int
pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_acct_mgmt");
    return (PAM_ACCT_EXPIRED);
}

int
pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_open_session");
    return (PAM_SESSION_ERR);
}

int
pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_close_session");
    return (PAM_SESSION_ERR);
}

int
pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
    debug(pamh, flags, argc, argv, "pam_sm_chauthtok");
    return (PAM_AUTHTOK_ERR);
}