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tor/src/test/test_config.c
George Kadianakis 9bdd33eae6 Add parse_bridge_line() unittests.
2013-02-11 23:45:18 +01:00

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/* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2013, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "orconfig.h"
#include "or.h"
#include "addressmap.h"
#include "config.h"
#include "confparse.h"
#include "connection_edge.h"
#include "test.h"
#include "util.h"
#include "address.h"
static void
test_config_addressmap(void *arg)
{
char buf[1024];
char address[256];
time_t expires = TIME_MAX;
(void)arg;
strlcpy(buf, "MapAddress .invalidwildcard.com *.torserver.exit\n" // invalid
"MapAddress *invalidasterisk.com *.torserver.exit\n" // invalid
"MapAddress *.google.com *.torserver.exit\n"
"MapAddress *.yahoo.com *.google.com.torserver.exit\n"
"MapAddress *.cn.com www.cnn.com\n"
"MapAddress *.cnn.com www.cnn.com\n"
"MapAddress ex.com www.cnn.com\n"
"MapAddress ey.com *.cnn.com\n"
"MapAddress www.torproject.org 1.1.1.1\n"
"MapAddress other.torproject.org "
"this.torproject.org.otherserver.exit\n"
"MapAddress test.torproject.org 2.2.2.2\n"
"MapAddress www.google.com 3.3.3.3\n"
"MapAddress www.example.org 4.4.4.4\n"
"MapAddress 4.4.4.4 7.7.7.7\n"
"MapAddress 4.4.4.4 5.5.5.5\n"
"MapAddress www.infiniteloop.org 6.6.6.6\n"
"MapAddress 6.6.6.6 www.infiniteloop.org\n"
, sizeof(buf));
config_get_lines(buf, &(get_options_mutable()->AddressMap), 0);
config_register_addressmaps(get_options());
/* Use old interface for now, so we don't need to rewrite the unit tests */
#define addressmap_rewrite(a,s,eo,ao) \
addressmap_rewrite((a),(s),AMR_FLAG_USE_IPV4_DNS|AMR_FLAG_USE_IPV6_DNS, \
(eo),(ao))
/* MapAddress .invalidwildcard.com .torserver.exit - no match */
strlcpy(address, "www.invalidwildcard.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
/* MapAddress *invalidasterisk.com .torserver.exit - no match */
strlcpy(address, "www.invalidasterisk.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
/* Where no mapping for FQDN match on top-level domain */
/* MapAddress .google.com .torserver.exit */
strlcpy(address, "reader.google.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "reader.torserver.exit");
/* MapAddress *.yahoo.com *.google.com.torserver.exit */
strlcpy(address, "reader.yahoo.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "reader.google.com.torserver.exit");
/*MapAddress *.cnn.com www.cnn.com */
strlcpy(address, "cnn.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "www.cnn.com");
/* MapAddress .cn.com www.cnn.com */
strlcpy(address, "www.cn.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "www.cnn.com");
/* MapAddress ex.com www.cnn.com - no match */
strlcpy(address, "www.ex.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
/* MapAddress ey.com *.cnn.com - invalid expression */
strlcpy(address, "ey.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
/* Where mapping for FQDN match on FQDN */
strlcpy(address, "www.google.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "3.3.3.3");
strlcpy(address, "www.torproject.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "1.1.1.1");
strlcpy(address, "other.torproject.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "this.torproject.org.otherserver.exit");
strlcpy(address, "test.torproject.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "2.2.2.2");
/* Test a chain of address mappings and the order in which they were added:
"MapAddress www.example.org 4.4.4.4"
"MapAddress 4.4.4.4 7.7.7.7"
"MapAddress 4.4.4.4 5.5.5.5"
*/
strlcpy(address, "www.example.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "5.5.5.5");
/* Test infinite address mapping results in no change */
strlcpy(address, "www.infiniteloop.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "www.infiniteloop.org");
/* Test we don't find false positives */
strlcpy(address, "www.example.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
/* Test top-level-domain matching a bit harder */
addressmap_clear_configured();
strlcpy(buf, "MapAddress *.com *.torserver.exit\n"
"MapAddress *.torproject.org 1.1.1.1\n"
"MapAddress *.net 2.2.2.2\n"
, sizeof(buf));
config_get_lines(buf, &(get_options_mutable()->AddressMap), 0);
config_register_addressmaps(get_options());
strlcpy(address, "www.abc.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "www.abc.torserver.exit");
strlcpy(address, "www.def.com", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "www.def.torserver.exit");
strlcpy(address, "www.torproject.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "1.1.1.1");
strlcpy(address, "test.torproject.org", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "1.1.1.1");
strlcpy(address, "torproject.net", sizeof(address));
test_assert(addressmap_rewrite(address, sizeof(address), &expires, NULL));
test_streq(address, "2.2.2.2");
/* We don't support '*' as a mapping directive */
addressmap_clear_configured();
strlcpy(buf, "MapAddress * *.torserver.exit\n", sizeof(buf));
config_get_lines(buf, &(get_options_mutable()->AddressMap), 0);
config_register_addressmaps(get_options());
strlcpy(address, "www.abc.com", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
strlcpy(address, "www.def.net", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
strlcpy(address, "www.torproject.org", sizeof(address));
test_assert(!addressmap_rewrite(address, sizeof(address), &expires, NULL));
#undef addressmap_rewrite
done:
;
}
/* Test helper function: Make sure that a bridge line gets parsed
* properly. Also make sure that the resulting bridge_line_t structure
* has its fields set correctly. */
static void
good_bridge_line_test(const char *string, const char *test_addrport,
const char *test_digest, const char *test_transport,
const smartlist_t *test_socks_args)
{
char *tmp = NULL;
bridge_line_t *bridge_line = parse_bridge_line(string);
test_assert(bridge_line);
/* test addrport */
tmp = tor_strdup(fmt_addrport(&bridge_line->addr, bridge_line->port));
test_streq(test_addrport, tmp);
tor_free(tmp);
/* If we were asked to validate a digest, but we did not get a
digest after parsing, we failed. */
if (test_digest && tor_digest_is_zero(bridge_line->digest))
test_assert(0);
/* If we were not asked to validate a digest, and we got a digest
after parsing, we failed again. */
if (!test_digest && !tor_digest_is_zero(bridge_line->digest))
test_assert(0);
/* If we were asked to validate a digest, and we got a digest after
parsing, make sure it's correct. */
if (test_digest) {
tmp = tor_strdup(hex_str(bridge_line->digest, DIGEST_LEN));
tor_strlower(tmp);
test_streq(test_digest, tmp);
tor_free(tmp);
}
/* If we were asked to validate a transport name, make sure tha it
matches with the transport name that was parsed. */
if (test_transport && !bridge_line->transport_name)
test_assert(0);
if (!test_transport && bridge_line->transport_name)
test_assert(0);
if (test_transport)
test_streq(test_transport, bridge_line->transport_name);
/* Validate the SOCKS argument smartlist. */
if (test_socks_args && !bridge_line->socks_args)
test_assert(0);
if (!test_socks_args && bridge_line->socks_args)
test_assert(0);
if (test_socks_args)
test_assert(smartlist_strings_eq(test_socks_args,
bridge_line->socks_args));
done:
tor_free(tmp);
bridge_line_free(bridge_line);
}
/* Test helper function: Make sure that a bridge line is
* unparseable. */
static void
bad_bridge_line_test(const char *string)
{
bridge_line_t *bridge_line = parse_bridge_line(string);
test_assert(!bridge_line);
done:
bridge_line_free(bridge_line);
}
static void
test_config_parse_bridge_line(void *arg)
{
(void) arg;
good_bridge_line_test("192.0.2.1:4123",
"192.0.2.1:4123", NULL, NULL, NULL);
good_bridge_line_test("192.0.2.1",
"192.0.2.1:443", NULL, NULL, NULL);
good_bridge_line_test("transport [::1]",
"[::1]:443", NULL, "transport", NULL);
good_bridge_line_test("transport 192.0.2.1:12 "
"4352e58420e68f5e40bf7c74faddccd9d1349413",
"192.0.2.1:12",
"4352e58420e68f5e40bf7c74faddccd9d1349413",
"transport", NULL);
{
smartlist_t *sl_tmp = smartlist_new();
smartlist_add_asprintf(sl_tmp, "twoandtwo=five");
good_bridge_line_test("transport 192.0.2.1:12 "
"4352e58420e68f5e40bf7c74faddccd9d1349413 twoandtwo=five",
"192.0.2.1:12", "4352e58420e68f5e40bf7c74faddccd9d1349413",
"transport", sl_tmp);
SMARTLIST_FOREACH(sl_tmp, char *, s, tor_free(s));
smartlist_free(sl_tmp);
}
{
smartlist_t *sl_tmp = smartlist_new();
smartlist_add_asprintf(sl_tmp, "twoandtwo=five");
smartlist_add_asprintf(sl_tmp, "z=z");
good_bridge_line_test("transport 192.0.2.1:12 twoandtwo=five z=z",
"192.0.2.1:12", NULL, "transport", sl_tmp);
SMARTLIST_FOREACH(sl_tmp, char *, s, tor_free(s));
smartlist_free(sl_tmp);
}
good_bridge_line_test("192.0.2.1:1231 "
"4352e58420e68f5e40bf7c74faddccd9d1349413",
"192.0.2.1:1231",
"4352e58420e68f5e40bf7c74faddccd9d1349413",
NULL, NULL);
/* Empty line */
bad_bridge_line_test("");
/* bad transport name */
bad_bridge_line_test("tr$n_sp0r7 190.20.2.2");
/* weird ip address */
bad_bridge_line_test("a.b.c.d");
/* invalid fpr */
bad_bridge_line_test("2.2.2.2:1231 4352e58420e68f5e40bf7c74faddccd9d1349");
/* no k=v in the end */
bad_bridge_line_test("obfs2 2.2.2.2:1231 "
"4352e58420e68f5e40bf7c74faddccd9d1349413 what");
/* no addrport */
bad_bridge_line_test("asdw");
/* huge k=v value that can't fit in SOCKS fields */
bad_bridge_line_test(
"obfs2 2.2.2.2:1231 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aa=b");
}
#define CONFIG_TEST(name, flags) \
{ #name, test_config_ ## name, flags, NULL, NULL }
struct testcase_t config_tests[] = {
CONFIG_TEST(addressmap, 0),
CONFIG_TEST(parse_bridge_line, 0),
END_OF_TESTCASES
};
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