/**

 * Seccomp Library test program

 *

 * Copyright (c) 2019 Cisco Systems, Inc. <pmoore2@cisco.com>

 * Author: Paul Moore <paul@paul-moore.com>

 * Additions: Michael Weiser <michael.weiser@gmx.de>

 */

/*

 * This library is free software; you can redistribute it and/or modify it

 * under the terms of version 2.1 of the GNU Lesser General Public License as

 * published by the Free Software Foundation.

 *

 * This library is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License

 * for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this library; if not, see <http://www.gnu.org/licenses>.

 */

#include <errno.h>

#include <unistd.h>

#include <inttypes.h>

#include <seccomp.h>

#include "util.h"

int main(int argc, char *argv[])

{

	int rc;

	struct util_options opts;

	scmp_filter_ctx ctx = NULL;

	struct args {

		uint32_t action;

		int syscall;

		struct scmp_arg_cmp cmp;

	} *a, f[] = {

		{SCMP_ACT_ALLOW, 2000, SCMP_A0(SCMP_CMP_EQ, -1)},

		{SCMP_ACT_ALLOW, 2064, SCMP_A0_64(SCMP_CMP_EQ, -1)},

		{SCMP_ACT_ALLOW, 2032, SCMP_A0_32(SCMP_CMP_EQ, -1)},

		{0},

	};

	rc = util_getopt(argc, argv, &opts);

	if (rc < 0)

		goto out;

	ctx = seccomp_init(SCMP_ACT_KILL);

	if (ctx == NULL)

		return ENOMEM;

	rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 1,

				    SCMP_A0(SCMP_CMP_EQ, -1));

	if (rc != 0)

		goto out;

	rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1064, 1,

				    SCMP_A0_64(SCMP_CMP_EQ, -1));

	if (rc != 0)

		goto out;

	rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1032, 1,

				    SCMP_A0_32(SCMP_CMP_EQ, -1));

	if (rc != 0)

		goto out;

	for (a = f; a->syscall != 0; a++) {

		rc = seccomp_rule_add_exact(ctx, a->action, a->syscall, 1,

					    a->cmp);

		if (rc != 0)

			goto out;

	}

	rc = util_filter_output(&opts, ctx);

	if (rc)

		goto out;

out:

	seccomp_release(ctx);

	return (rc < 0 ? -rc : rc);

}