/**

 * Seccomp Library test program

 *

 * Copyright IBM Corp. 2012

 * Author: Corey Bryant <coreyb@linux.vnet.ibm.com>

 */

/*

 * 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 <seccomp.h>

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

{

	int rc;

	scmp_filter_ctx ctx;

	uint32_t attr;

	/* seccomp_init errors */

	ctx = seccomp_init(SCMP_ACT_ALLOW + 1);

	if (ctx != NULL)

		return -1;

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	seccomp_release(ctx);

	ctx = NULL;

	/* ensure that seccomp_reset(NULL, ...) is accepted */

	rc = seccomp_reset(NULL, SCMP_ACT_ALLOW);

	if (rc != 0)

		return -1;

	/* seccomp_load error */

	rc = seccomp_load(ctx);

	if (rc != -EINVAL)

		return -1;

	/* seccomp_syscall_priority errors */

	rc = seccomp_syscall_priority(ctx, SCMP_SYS(read), 1);

	if (rc != -EINVAL)

		return -1;

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	else {

		rc = seccomp_syscall_priority(ctx, -10, 1);

		if (rc != -EINVAL)

			return -1;

	}

	seccomp_release(ctx);

	ctx = NULL;

	/* seccomp_rule_add errors */

	rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 1,

			      SCMP_A0(SCMP_CMP_EQ, 0));

	if (rc != -EINVAL)

		return -1;

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	else {

		rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 0);

		if (rc != -EACCES)

			return -1;

		rc = seccomp_rule_add(ctx, SCMP_ACT_KILL - 1, SCMP_SYS(read), 0);

		if (rc != -EINVAL)

			return -1;

		rc = seccomp_rule_add(ctx, SCMP_ACT_KILL, SCMP_SYS(read), 7);

		if (rc != -EINVAL)

			return -1;

		rc = seccomp_rule_add(ctx, SCMP_ACT_KILL, SCMP_SYS(read), 7,

				      SCMP_A0(SCMP_CMP_EQ, 0),

				      SCMP_A1(SCMP_CMP_EQ, 0),

				      SCMP_A2(SCMP_CMP_EQ, 0),

				      SCMP_A3(SCMP_CMP_EQ, 0),

				      SCMP_A4(SCMP_CMP_EQ, 0),

				      SCMP_A5(SCMP_CMP_EQ, 0),

				      SCMP_CMP(6, SCMP_CMP_EQ, 0));

		if (rc != -EINVAL)

			return -1;

		rc = seccomp_rule_add(ctx, SCMP_ACT_KILL, SCMP_SYS(read), 1,

				      SCMP_A0(_SCMP_CMP_MIN, 0));

		if (rc != -EINVAL)

			return -1;

		rc = seccomp_rule_add(ctx, SCMP_ACT_KILL, SCMP_SYS(read), 1,

				      SCMP_A0(_SCMP_CMP_MAX, 0));

		if (rc != -EINVAL)

			return -1;

		rc = seccomp_rule_add_exact(ctx, SCMP_ACT_KILL, -10001, 0);

		if (rc != -EDOM)

			return -1;

	}

	seccomp_release(ctx);

	ctx = NULL;

	/* seccomp_rule_add_exact error */

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	rc = seccomp_arch_remove(ctx, SCMP_ARCH_NATIVE);

	if (rc != 0)

		return -1;

	rc = seccomp_arch_add(ctx, SCMP_ARCH_X86);

	if (rc != 0)

		return -1;

	rc = seccomp_rule_add_exact(ctx, SCMP_ACT_KILL, SCMP_SYS(socket), 1,

				    SCMP_A0(SCMP_CMP_EQ, 2));

	if (rc != -EINVAL)

		return -1;

	seccomp_release(ctx);

	ctx = NULL;

	/* errno values beyond MAX_ERRNO */

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(0xffff), 0, 0);

	if (rc != -EINVAL)

		return -1;

	seccomp_release(ctx);

	ctx = NULL;

	/* seccomp_export_pfc errors */

	rc = seccomp_export_pfc(ctx, STDOUT_FILENO);

	if (rc != -EINVAL)

		return -1;

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	else {

		rc = seccomp_export_pfc(ctx, sysconf(_SC_OPEN_MAX) - 1);

		if (rc != -ECANCELED)

			return -1;

	}

	seccomp_release(ctx);

	ctx = NULL;

	/* seccomp_export_bpf errors */

	rc = seccomp_export_bpf(ctx, STDOUT_FILENO);

	if (rc != -EINVAL)

		return -1;

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	else {

		rc = seccomp_export_bpf(ctx, sysconf(_SC_OPEN_MAX) - 1);

		if (rc != -ECANCELED)

			return -1;

	}

	seccomp_release(ctx);

	ctx = NULL;

	/* seccomp_attr_* errors */

	ctx = seccomp_init(SCMP_ACT_ALLOW);

	if (ctx == NULL)

		return -1;

	rc = seccomp_attr_get(ctx, 1000, &attr);

	if (rc != -EINVAL)

		return -1;

	rc = seccomp_attr_set(ctx, 1000, 1);

	if (rc != -EINVAL)

		return -1;

	return 0;

}