xref: /freebsd/lib/libpam/modules/pam_permit/pam_permit.c (revision 04f71c5352de62224d77b93e4e34d795a0c3e076)

/*-
 * Copyright 2001 Mark R V Murray
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <stddef.h>

#define	PAM_SM_AUTH
#define	PAM_SM_ACCOUNT
#define	PAM_SM_SESSION
#define	PAM_SM_PASSWORD

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

#define NOBODY "nobody"

PAM_EXTERN int
pam_sm_authenticate(pam_handle_t *pamh, int flags __unused, int argc, const char **argv)
{
	struct options options;
	int retval;
	const char *user;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	/* We always need to know who the user is */
	user = NULL;
	retval = pam_get_user(pamh, &user, NULL);
	if (retval != PAM_SUCCESS)
		PAM_RETURN(retval);

	PAM_LOG("Got user: %s", user);

	if (user == NULL || *user == '\0')
		pam_set_item(pamh, PAM_USER, (const void *)NOBODY);
	user = NULL;

	PAM_RETURN(PAM_SUCCESS);
}

PAM_EXTERN int
pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused, int argc, const char **argv)
{
	struct options options;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	PAM_RETURN(PAM_SUCCESS);
}

PAM_EXTERN int
pam_sm_acct_mgmt(pam_handle_t *pamh __unused, int flags __unused, int argc ,const char **argv)
{
	struct options options;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	PAM_RETURN(PAM_SUCCESS);
}

PAM_EXTERN int
pam_sm_chauthtok(pam_handle_t *pamh __unused, int flags __unused, int argc, const char **argv)
{
	struct options options;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	PAM_RETURN(PAM_SUCCESS);
}

PAM_EXTERN int
pam_sm_open_session(pam_handle_t *pamh __unused, int flags __unused, int argc, const char **argv)
{
	struct options options;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	PAM_RETURN(PAM_SUCCESS);
}

PAM_EXTERN int
pam_sm_close_session(pam_handle_t *pamh __unused, int flags __unused, int argc, const char **argv)
{
	struct options options;

	pam_std_option(&options, NULL, argc, argv);

	PAM_LOG("Options processed");

	PAM_RETURN(PAM_SUCCESS);
}

PAM_MODULE_ENTRY("pam_permit");