bind9/lib/dns/tests/acl_test.c

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */


/*! \file */

#include <config.h>

#include <atf-c.h>

#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>

#include <isc/print.h>
#include <isc/string.h>

#include <dns/acl.h>
#include "dnstest.h"

/*
 * Helper functions
 */

#define	BUFLEN		255
#define	BIGBUFLEN	(70 * 1024)
#define TEST_ORIGIN	"test"

ATF_TC(dns_acl_isinsecure);
ATF_TC_HEAD(dns_acl_isinsecure, tc) {
	atf_tc_set_md_var(tc, "descr", "test that dns_acl_isinsecure works");
}
ATF_TC_BODY(dns_acl_isinsecure, tc) {
	isc_result_t result;
	unsigned int pass;
	struct {
		bool first;
		bool second;
	} ecs[] = {
		{ false, false },
		{ true, true },
		{ true, false },
		{ false, true }
	};

	dns_acl_t *any = NULL;
	dns_acl_t *none = NULL;
	dns_acl_t *notnone = NULL;
	dns_acl_t *notany = NULL;
#ifdef HAVE_GEOIP
	dns_acl_t *geoip = NULL;
	dns_acl_t *notgeoip = NULL;
	dns_aclelement_t *de;
#endif

	dns_acl_t *pos4pos6 = NULL;
	dns_acl_t *notpos4pos6 = NULL;
	dns_acl_t *neg4pos6 = NULL;
	dns_acl_t *notneg4pos6 = NULL;
	dns_acl_t *pos4neg6 = NULL;
	dns_acl_t *notpos4neg6 = NULL;
	dns_acl_t *neg4neg6 = NULL;
	dns_acl_t *notneg4neg6 = NULL;

	dns_acl_t *loop4 = NULL;
	dns_acl_t *notloop4 = NULL;

	dns_acl_t *loop6 = NULL;
	dns_acl_t *notloop6 = NULL;

	dns_acl_t *loop4pos6 = NULL;
	dns_acl_t *notloop4pos6 = NULL;
	dns_acl_t *loop4neg6 = NULL;
	dns_acl_t *notloop4neg6 = NULL;

	struct in_addr inaddr;
	isc_netaddr_t addr;

	UNUSED(tc);

	result = dns_test_begin(NULL, false);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_any(mctx, &any);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_none(mctx, &none);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_create(mctx, 1, &notnone);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_create(mctx, 1, &notany);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_merge(notnone, none, false);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_merge(notany, any, false);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

#ifdef HAVE_GEOIP
	result = dns_acl_create(mctx, 1, &geoip);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	de = geoip->elements;
	ATF_REQUIRE(de != NULL);
	strlcpy(de->geoip_elem.as_string, "AU",
		sizeof(de->geoip_elem.as_string));
	de->geoip_elem.subtype = dns_geoip_country_code;
	de->type = dns_aclelementtype_geoip;
	de->negative = false;
	ATF_REQUIRE(geoip->length < geoip->alloc);
	geoip->node_count++;
	de->node_num = geoip->node_count;
	geoip->length++;

	result = dns_acl_create(mctx, 1, &notgeoip);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

	result = dns_acl_merge(notgeoip, geoip, false);
	ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
#endif

	ATF_CHECK(dns_acl_isinsecure(any));		/* any; */
	ATF_CHECK(!dns_acl_isinsecure(none));		/* none; */
	ATF_CHECK(!dns_acl_isinsecure(notany));		/* !any; */
	ATF_CHECK(!dns_acl_isinsecure(notnone));	/* !none; */

#ifdef HAVE_GEOIP
	ATF_CHECK(dns_acl_isinsecure(geoip));		/* geoip; */
	ATF_CHECK(!dns_acl_isinsecure(notgeoip));	/* !geoip; */
#endif

	dns_acl_detach(&any);
	dns_acl_detach(&none);
	dns_acl_detach(&notany);
	dns_acl_detach(&notnone);
#ifdef HAVE_GEOIP
	dns_acl_detach(&geoip);
	dns_acl_detach(&notgeoip);
#endif

	for (pass = 0; pass < sizeof(ecs)/sizeof(ecs[0]); pass++) {
		result = dns_acl_create(mctx, 1, &pos4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notpos4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &neg4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notneg4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &pos4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notpos4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &neg4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notneg4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x0a000000);	/* 10.0.0.0 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(pos4pos6->iptable, &addr, 8,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* 0a00:: */
		result = dns_iptable_addprefix2(pos4pos6->iptable, &addr, 8,
						true, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notpos4pos6, pos4pos6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x0a000000);	/* !10.0.0.0/8 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(neg4pos6->iptable, &addr, 8,
						false, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* 0a00::/8 */
		result = dns_iptable_addprefix2(neg4pos6->iptable, &addr, 8,
						true, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notneg4pos6, neg4pos6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x0a000000);	/* 10.0.0.0/8 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(pos4neg6->iptable, &addr, 8,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* !0a00::/8 */
		result = dns_iptable_addprefix2(pos4neg6->iptable, &addr, 8,
						false, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notpos4neg6, pos4neg6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x0a000000);	/* !10.0.0.0/8 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(neg4neg6->iptable, &addr, 8,
						false, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* !0a00::/8 */
		result = dns_iptable_addprefix2(neg4neg6->iptable, &addr, 8,
						false, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notneg4neg6, neg4neg6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		ATF_CHECK(dns_acl_isinsecure(pos4pos6));
		ATF_CHECK(!dns_acl_isinsecure(notpos4pos6));
		ATF_CHECK(dns_acl_isinsecure(neg4pos6));
		ATF_CHECK(!dns_acl_isinsecure(notneg4pos6));
		ATF_CHECK(dns_acl_isinsecure(pos4neg6));
		ATF_CHECK(!dns_acl_isinsecure(notpos4neg6));
		ATF_CHECK(!dns_acl_isinsecure(neg4neg6));
		ATF_CHECK(!dns_acl_isinsecure(notneg4neg6));

		dns_acl_detach(&pos4pos6);
		dns_acl_detach(&notpos4pos6);
		dns_acl_detach(&neg4pos6);
		dns_acl_detach(&notneg4pos6);
		dns_acl_detach(&pos4neg6);
		dns_acl_detach(&notpos4neg6);
		dns_acl_detach(&neg4neg6);
		dns_acl_detach(&notneg4neg6);

		result = dns_acl_create(mctx, 1, &loop4);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notloop4);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &loop6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notloop6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x7f000001);	/* 127.0.0.1 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(loop4->iptable, &addr, 32,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notloop4, loop4, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		isc_netaddr_fromin6(&addr, &in6addr_loopback);	/* ::1 */
		result = dns_iptable_addprefix2(loop6->iptable, &addr, 128,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notloop6, loop6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		if (!ecs[pass].first) {
			ATF_CHECK(!dns_acl_isinsecure(loop4));
			ATF_CHECK(!dns_acl_isinsecure(notloop4));
			ATF_CHECK(!dns_acl_isinsecure(loop6));
			ATF_CHECK(!dns_acl_isinsecure(notloop6));
		} else if (ecs[pass].first) {
			ATF_CHECK(dns_acl_isinsecure(loop4));
			ATF_CHECK(!dns_acl_isinsecure(notloop4));
			ATF_CHECK(dns_acl_isinsecure(loop6));
			ATF_CHECK(!dns_acl_isinsecure(notloop6));
		}

		dns_acl_detach(&loop4);
		dns_acl_detach(&notloop4);
		dns_acl_detach(&loop6);
		dns_acl_detach(&notloop6);

		result = dns_acl_create(mctx, 1, &loop4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notloop4pos6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &loop4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_create(mctx, 1, &notloop4neg6);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x7f000001);	/* 127.0.0.1 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(loop4pos6->iptable, &addr, 32,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* f700:0001::/32 */
		result = dns_iptable_addprefix2(loop4pos6->iptable, &addr, 32,
						true, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notloop4pos6, loop4pos6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		inaddr.s_addr = htonl(0x7f000001);	/* 127.0.0.1 */
		isc_netaddr_fromin(&addr, &inaddr);
		result = dns_iptable_addprefix2(loop4neg6->iptable, &addr, 32,
						true, ecs[pass].first);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		addr.family = AF_INET6;			/* !f700:0001::/32 */
		result = dns_iptable_addprefix2(loop4neg6->iptable, &addr, 32,
						false, ecs[pass].second);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		result = dns_acl_merge(notloop4neg6, loop4neg6, false);
		ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

		if (!ecs[pass].first && !ecs[pass].second) {
			ATF_CHECK(dns_acl_isinsecure(loop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(loop4neg6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4neg6));
		} else if (ecs[pass].first && !ecs[pass].second) {
			ATF_CHECK(dns_acl_isinsecure(loop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4pos6));
			ATF_CHECK(dns_acl_isinsecure(loop4neg6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4neg6));
		} else if (!ecs[pass].first && ecs[pass].second) {
			ATF_CHECK(dns_acl_isinsecure(loop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(loop4neg6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4neg6));
		} else {
			ATF_CHECK(dns_acl_isinsecure(loop4pos6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4pos6));
			ATF_CHECK(dns_acl_isinsecure(loop4neg6));
			ATF_CHECK(!dns_acl_isinsecure(notloop4neg6));
		}

		dns_acl_detach(&loop4pos6);
		dns_acl_detach(&notloop4pos6);
		dns_acl_detach(&loop4neg6);
		dns_acl_detach(&notloop4neg6);
	}

	dns_test_end();
}

/*
 * Main
 */
ATF_TP_ADD_TCS(tp) {
	ATF_TP_ADD_TC(tp, dns_acl_isinsecure);
	return (atf_no_error());
}