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libvirt/tests/sockettest.c
Laine Stump 1e334a0a00 network: validate DHCP ranges are completely within defined network 
virSocketAddrGetRange() has been updated to take the network address
and prefix, and now checks that both the start and end of the range
are within that network, thus validating that the entire range of
addresses is in the network. For IPv4, it also checks that ranges to
not start with the "network address" of the subnet, nor end with the
broadcast address of the subnet (this check doesn't apply to IPv6,
since IPv6 doesn't have a broadcast or network address)

Negative tests have been added to the network update and socket tests
to verify that bad ranges properly generate an error.

This resolves: https://bugzilla.redhat.com/show_bug.cgi?id=985653
2015-06-02 12:40:07 -04:00

444 lines
15 KiB
C
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/*
* sockettest.c: Testing for src/util/network.c APIs
*
* Copyright (C) 2010-2011, 2014, 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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 <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "virsocketaddr.h"
#include "testutils.h"
#include "virlog.h"
#include "viralloc.h"
VIR_LOG_INIT("tests.sockettest");
static int testParse(virSocketAddr *addr, const char *addrstr, int family, bool pass)
{
int rc;
rc = virSocketAddrParse(addr, addrstr, family);
if (rc < 0)
return pass ? -1 : 0;
else
return pass ? 0 : -1;
}
static int testFormat(virSocketAddr *addr, const char *addrstr, bool pass)
{
char *newaddrstr;
newaddrstr = virSocketAddrFormat(addr);
if (!newaddrstr)
return pass ? -1 : 0;
if (STRNEQ(newaddrstr, addrstr)) {
virtTestDifference(stderr, newaddrstr, addrstr);
VIR_FREE(newaddrstr);
return pass ? -1 : 0;
} else {
VIR_FREE(newaddrstr);
return pass ? 0 : -1;
}
}
struct testParseData {
virSocketAddr *addr;
const char *addrstr;
int family;
bool pass;
};
static int testParseHelper(const void *opaque)
{
const struct testParseData *data = opaque;
return testParse(data->addr, data->addrstr, data->family, data->pass);
}
struct testFormatData {
virSocketAddr *addr;
const char *addrstr;
bool pass;
};
static int testFormatHelper(const void *opaque)
{
const struct testFormatData *data = opaque;
return testFormat(data->addr, data->addrstr, data->pass);
}
static int
testRange(const char *saddrstr, const char *eaddrstr,
const char *netstr, int prefix, int size, bool pass)
{
virSocketAddr saddr;
virSocketAddr eaddr;
virSocketAddr netaddr;
if (virSocketAddrParse(&saddr, saddrstr, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrParse(&eaddr, eaddrstr, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrParse(&netaddr, netstr, AF_UNSPEC) < 0)
return -1;
int gotsize = virSocketAddrGetRange(&saddr, &eaddr, &netaddr, prefix);
VIR_DEBUG("Size want %d vs got %d", size, gotsize);
if (pass) {
/* fail if virSocketAddrGetRange returns failure, or unexpected size */
return (gotsize < 0 || gotsize != size) ? -1 : 0;
} else {
/* succeed if virSocketAddrGetRange fails, otherwise fail. */
return gotsize < 0 ? 0 : -1;
}
}
struct testRangeData {
const char *saddr;
const char *eaddr;
const char *netaddr;
int prefix;
int size;
bool pass;
};
static int testRangeHelper(const void *opaque)
{
const struct testRangeData *data = opaque;
return testRange(data->saddr, data->eaddr,
data->netaddr, data->prefix,
data->size, data->pass);
}
static int testNetmask(const char *addr1str, const char *addr2str,
const char *netmaskstr, bool pass)
{
virSocketAddr addr1;
virSocketAddr addr2;
virSocketAddr netmask;
if (virSocketAddrParse(&addr1, addr1str, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrParse(&addr2, addr2str, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrParse(&netmask, netmaskstr, AF_UNSPEC) < 0)
return -1;
int ret = virSocketAddrCheckNetmask(&addr1, &addr2, &netmask);
if (ret <= 0) {
return pass ? -1 : 0;
} else {
return pass ? 0 : -1;
}
}
struct testNetmaskData {
const char *addr1;
const char *addr2;
const char *netmask;
bool pass;
};
static int testNetmaskHelper(const void *opaque)
{
const struct testNetmaskData *data = opaque;
return testNetmask(data->addr1, data->addr2, data->netmask, data->pass);
}
static int testMaskNetwork(const char *addrstr,
int prefix,
const char *networkstr)
{
virSocketAddr addr;
virSocketAddr network;
char *gotnet = NULL;
/* Intentionally fill with garbage */
memset(&network, 1, sizeof(network));
if (virSocketAddrParse(&addr, addrstr, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrMaskByPrefix(&addr, prefix, &network) < 0)
return -1;
if (!(gotnet = virSocketAddrFormat(&network)))
return -1;
if (STRNEQ(networkstr, gotnet)) {
VIR_FREE(gotnet);
fprintf(stderr, "Expected %s, got %s\n", networkstr, gotnet);
return -1;
}
VIR_FREE(gotnet);
return 0;
}
struct testMaskNetworkData {
const char *addr1;
int prefix;
const char *network;
};
static int testMaskNetworkHelper(const void *opaque)
{
const struct testMaskNetworkData *data = opaque;
return testMaskNetwork(data->addr1, data->prefix, data->network);
}
static int testWildcard(const char *addrstr,
bool pass)
{
virSocketAddr addr;
if (virSocketAddrParse(&addr, addrstr, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrIsWildcard(&addr))
return pass ? 0 : -1;
return pass ? -1 : 0;
}
struct testWildcardData {
const char *addr;
bool pass;
};
static int testWildcardHelper(const void *opaque)
{
const struct testWildcardData *data = opaque;
return testWildcard(data->addr, data->pass);
}
struct testNumericData {
const char *addr;
int expected;
};
static int
testNumericHelper(const void *opaque)
{
const struct testNumericData *data = opaque;
if (virSocketAddrNumericFamily(data->addr) != data->expected)
return -1;
return 0;
}
struct testIsLocalhostData {
const char *addr;
bool result;
};
static int
testIsLocalhostHelper(const void *opaque)
{
const struct testIsLocalhostData *data = opaque;
if (virSocketAddrIsNumericLocalhost(data->addr) != data->result)
return -1;
return 0;
}
static int
mymain(void)
{
int ret = 0;
/* Some of our tests deliberately test failure cases, so
* register a handler to stop error messages cluttering
* up display
*/
virtTestQuiesceLibvirtErrors(false);
#define DO_TEST_PARSE_AND_FORMAT(addrstr, family, pass) \
do { \
virSocketAddr addr; \
struct testParseData data = { &addr, addrstr, family, pass }; \
memset(&addr, 0, sizeof(addr)); \
if (virtTestRun("Test parse " addrstr " family " #family, \
testParseHelper, &data) < 0) \
ret = -1; \
struct testFormatData data2 = { &addr, addrstr, pass }; \
if (virtTestRun("Test format " addrstr " family " #family, \
testFormatHelper, &data2) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_PARSE_AND_CHECK_FORMAT(addrstr, addrformated, family, pass) \
do { \
virSocketAddr addr; \
struct testParseData data = { &addr, addrstr, family, true}; \
memset(&addr, 0, sizeof(addr)); \
if (virtTestRun("Test parse " addrstr " family " #family, \
testParseHelper, &data) < 0) \
ret = -1; \
struct testFormatData data2 = { &addr, addrformated, pass }; \
if (virtTestRun("Test format " addrstr " family " #family, \
testFormatHelper, &data2) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_RANGE(saddr, eaddr, netaddr, prefix, size, pass) \
do { \
struct testRangeData data \
= { saddr, eaddr, netaddr, prefix, size, pass }; \
if (virtTestRun("Test range " saddr " -> " eaddr "(" netaddr \
"/" #prefix") size " #size, \
testRangeHelper, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_NETMASK(addr1, addr2, netmask, pass) \
do { \
struct testNetmaskData data = { addr1, addr2, netmask, pass }; \
if (virtTestRun("Test netmask " addr1 " + " addr2 " in " netmask, \
testNetmaskHelper, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_MASK_NETWORK(addr1, prefix, network) \
do { \
struct testMaskNetworkData data = { addr1, prefix, network }; \
if (virtTestRun("Test mask network " addr1 " / " #prefix " == " network, \
testMaskNetworkHelper, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_WILDCARD(addr, pass) \
do { \
struct testWildcardData data = { addr, pass}; \
if (virtTestRun("Test wildcard " addr, \
testWildcardHelper, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_NUMERIC_FAMILY(addr, pass) \
do { \
struct testNumericData data = { addr, pass }; \
if (virtTestRun("Test Numeric Family" addr, \
testNumericHelper, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_LOCALHOST(addr, pass) \
do { \
struct testIsLocalhostData data = { addr, pass }; \
if (virtTestRun("Test localhost " addr, \
testIsLocalhostHelper, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST_PARSE_AND_FORMAT("127.0.0.1", AF_UNSPEC, true);
DO_TEST_PARSE_AND_FORMAT("127.0.0.1", AF_INET, true);
DO_TEST_PARSE_AND_FORMAT("127.0.0.1", AF_INET6, false);
DO_TEST_PARSE_AND_FORMAT("127.0.0.1", AF_UNIX, false);
DO_TEST_PARSE_AND_FORMAT("127.0.0.256", AF_UNSPEC, false);
DO_TEST_PARSE_AND_CHECK_FORMAT("127.0.0.2", "127.0.0.2", AF_INET, true);
DO_TEST_PARSE_AND_CHECK_FORMAT("127.0.0.2", "127.0.0.3", AF_INET, false);
DO_TEST_PARSE_AND_CHECK_FORMAT("0", "0.0.0.0", AF_INET, true);
DO_TEST_PARSE_AND_CHECK_FORMAT("127", "0.0.0.127", AF_INET, true);
DO_TEST_PARSE_AND_CHECK_FORMAT("127", "127.0.0.0", AF_INET, false);
DO_TEST_PARSE_AND_CHECK_FORMAT("127.2", "127.0.0.2", AF_INET, true);
DO_TEST_PARSE_AND_CHECK_FORMAT("127.2", "127.2.0.0", AF_INET, false);
DO_TEST_PARSE_AND_CHECK_FORMAT("1.2.3", "1.2.0.3", AF_INET, true);
DO_TEST_PARSE_AND_CHECK_FORMAT("1.2.3", "1.2.3.0", AF_INET, false);
DO_TEST_PARSE_AND_FORMAT("::1", AF_UNSPEC, true);
DO_TEST_PARSE_AND_FORMAT("::1", AF_INET, false);
DO_TEST_PARSE_AND_FORMAT("::1", AF_INET6, true);
DO_TEST_PARSE_AND_FORMAT("::1", AF_UNIX, false);
DO_TEST_PARSE_AND_FORMAT("::ffff", AF_UNSPEC, true);
DO_TEST_RANGE("192.168.122.1", "192.168.122.1", "192.168.122.1", 24, 1, true);
DO_TEST_RANGE("192.168.122.1", "192.168.122.20", "192.168.122.22", 24, 20, true);
DO_TEST_RANGE("192.168.122.0", "192.168.122.254", "192.168.122.1", 24, -1, false);
DO_TEST_RANGE("192.168.122.1", "192.168.122.255", "192.168.122.1", 24, -1, false);
DO_TEST_RANGE("192.168.122.0", "192.168.122.255", "192.168.122.1", 16, 256, true);
DO_TEST_RANGE("192.168.122.20", "192.168.122.1", "192.168.122.1", 24, -1, false);
DO_TEST_RANGE("10.0.0.1", "192.168.122.20", "192.168.122.1", 24, -1, false);
DO_TEST_RANGE("192.168.122.20", "10.0.0.1", "192.168.122.1", 24, -1, false);
DO_TEST_RANGE("172.16.0.50", "172.16.0.254", "1.2.3.4", 8, -1, false);
DO_TEST_RANGE("192.168.122.1", "192.168.123.20", "192.168.122.22", 24, -1, false);
DO_TEST_RANGE("192.168.122.1", "192.168.123.20", "192.168.122.22", 23, 276, true);
DO_TEST_RANGE("2000::1", "2000::1", "2000::1", 64, 1, true);
DO_TEST_RANGE("2000::1", "2000::2", "2000::1", 64, 2, true);
DO_TEST_RANGE("2000::2", "2000::1", "2000::1", 64, -1, false);
DO_TEST_RANGE("2000::1", "9001::1", "2000::1", 64, -1, false);
DO_TEST_NETMASK("192.168.122.1", "192.168.122.2",
"255.255.255.0", true);
DO_TEST_NETMASK("192.168.122.1", "192.168.122.4",
"255.255.255.248", true);
DO_TEST_NETMASK("192.168.122.1", "192.168.123.2",
"255.255.255.0", false);
DO_TEST_NETMASK("192.168.122.1", "192.168.123.2",
"255.255.0.0", true);
DO_TEST_NETMASK("2000::1:1", "2000::1:1",
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:0", true);
DO_TEST_NETMASK("2000::1:1", "2000::2:1",
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:0", false);
DO_TEST_NETMASK("2000::1:1", "2000::2:1",
"ffff:ffff:ffff:ffff:ffff:ffff:fff8:0", true);
DO_TEST_NETMASK("2000::1:1", "9000::1:1",
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:0", false);
DO_TEST_MASK_NETWORK("2001:db8:ca2:2::1", 64, "2001:db8:ca2:2::");
DO_TEST_WILDCARD("0.0.0.0", true);
DO_TEST_WILDCARD("::", true);
DO_TEST_WILDCARD("0", true);
DO_TEST_WILDCARD("0.0", true);
DO_TEST_WILDCARD("0.0.0", true);
DO_TEST_WILDCARD("1", false);
DO_TEST_WILDCARD("0.1", false);
DO_TEST_NUMERIC_FAMILY("0.0.0.0", AF_INET);
DO_TEST_NUMERIC_FAMILY("::", AF_INET6);
DO_TEST_NUMERIC_FAMILY("1", AF_INET);
DO_TEST_NUMERIC_FAMILY("::ffff", AF_INET6);
DO_TEST_NUMERIC_FAMILY("examplehost", -1);
DO_TEST_LOCALHOST("127.0.0.1", true);
DO_TEST_LOCALHOST("2130706433", true);
DO_TEST_LOCALHOST("0177.0.0.01", true);
DO_TEST_LOCALHOST("::1", true);
DO_TEST_LOCALHOST("0::1", true);
DO_TEST_LOCALHOST("0:0:0::1", true);
DO_TEST_LOCALHOST("[00:0::1]", false);
DO_TEST_LOCALHOST("[::1]", false);
DO_TEST_LOCALHOST("128.0.0.1", false);
DO_TEST_LOCALHOST("0.0.0.1", false);
DO_TEST_LOCALHOST("hello", false);
DO_TEST_LOCALHOST("fe80::1:1", false);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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