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libvirt/tests/sockettest.c
Daniel P. Berrange ba08c5932e Fix unitialized data in virSocketAddrMask 
The virSocketAddrMask method did not initialize all fields
in the sockaddr_in6 struct. In paticular the 'sin6_scope_id'
field could contain random garbage, which would in turn
affect the result of any later virSocketAddrFormat calls.
This led to ip6tables rules in the FORWARD chain which
matched on random garbage sin6_scope_id. Fortunately these
were ACCEPT rules, so the impact was merely that desired
traffic was blocked, rather than undesired traffic allowed.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-03-20 12:15:00 +00:00

398 lines
14 KiB
C
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/*
* sockettest.c: Testing for src/util/network.c APIs
*
* Copyright (C) 2010-2011, 2014 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, int size, bool pass)
{
virSocketAddr saddr;
virSocketAddr eaddr;
if (virSocketAddrParse(&saddr, saddrstr, AF_UNSPEC) < 0)
return -1;
if (virSocketAddrParse(&eaddr, eaddrstr, AF_UNSPEC) < 0)
return -1;
int gotsize = virSocketAddrGetRange(&saddr, &eaddr);
VIR_DEBUG("Size want %d vs got %d", size, gotsize);
if (gotsize < 0 || gotsize != size) {
return pass ? -1 : 0;
} else {
return pass ? 0 : -1;
}
}
struct testRangeData {
const char *saddr;
const char *eaddr;
int size;
bool pass;
};
static int testRangeHelper(const void *opaque)
{
const struct testRangeData *data = opaque;
return testRange(data->saddr, data->eaddr, 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 testIsNumericData {
const char *addr;
bool pass;
};
static int
testIsNumericHelper(const void *opaque)
{
const struct testIsNumericData *data = opaque;
if (virSocketAddrIsNumeric(data->addr))
return data->pass ? 0 : -1;
return data->pass ? -1 : 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(addrstr, family, pass) \
do { \
virSocketAddr addr; \
struct testParseData data = { &addr, addrstr, family, pass }; \
memset(&addr, 0, sizeof(addr)); \
if (virtTestRun("Test parse " addrstr, \
testParseHelper, &data) < 0) \
ret = -1; \
} while (0)
#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, size, pass) \
do { \
struct testRangeData data = { saddr, eaddr, size, pass }; \
if (virtTestRun("Test range " saddr " -> " eaddr " 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_IS_NUMERIC(addr, pass) \
do { \
struct testIsNumericData data = { addr, pass}; \
if (virtTestRun("Test isNumeric " addr, \
testIsNumericHelper, &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", 1, true);
DO_TEST_RANGE("192.168.122.1", "192.168.122.20", 20, true);
DO_TEST_RANGE("192.168.122.0", "192.168.122.255", 256, true);
DO_TEST_RANGE("192.168.122.20", "192.168.122.1", -1, false);
DO_TEST_RANGE("10.0.0.1", "192.168.122.20", -1, false);
DO_TEST_RANGE("192.168.122.20", "10.0.0.1", -1, false);
DO_TEST_RANGE("2000::1", "2000::1", 1, true);
DO_TEST_RANGE("2000::1", "2000::2", 2, true);
DO_TEST_RANGE("2000::2", "2000::1", -1, false);
DO_TEST_RANGE("2000::1", "9001::1", -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_IS_NUMERIC("0.0.0.0", true);
DO_TEST_IS_NUMERIC("::", true);
DO_TEST_IS_NUMERIC("1", true);
DO_TEST_IS_NUMERIC("::ffff", true);
DO_TEST_IS_NUMERIC("examplehost", false);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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