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test: Unit tests for find_my_address() IPv6
Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
David Goulet
@@ -1004,7 +1004,13 @@ tor_addr_lookup_01010101(const char *name, uint16_t family, tor_addr_t *addr)
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if (name && addr) {
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tor_addr_from_ipv4h(addr, 0x01010101);
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}
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} else if (family == AF_INET6) {
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if (name && addr) {
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int ret = tor_addr_parse(addr, "0101::0101");
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tt_int_op(ret, OP_EQ, AF_INET6);
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}
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}
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done:
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return 0;
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}
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@@ -1024,7 +1030,13 @@ tor_addr_lookup_localhost(const char *name, uint16_t family, tor_addr_t *addr)
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if (name && addr) {
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tor_addr_from_ipv4h(addr, 0x7f000001);
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}
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} else if (family == AF_INET6) {
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if (name && addr) {
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int ret = tor_addr_parse(addr, "::1");
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tt_int_op(ret, OP_EQ, AF_INET6);
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}
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}
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done:
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return 0;
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}
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@@ -1119,7 +1131,13 @@ get_interface_address6_08080808(int severity, sa_family_t family,
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if (addr) {
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tor_addr_from_ipv4h(addr, 0x08080808);
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}
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} else if (family == AF_INET6) {
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if (addr) {
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int ret = tor_addr_parse(addr, "0808::0808");
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tt_int_op(ret, OP_EQ, AF_INET6);
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}
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}
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done:
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return 0;
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}
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@@ -1169,6 +1187,402 @@ get_interface_address6_failure(int severity, sa_family_t family,
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return -1;
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}
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static void
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test_config_find_my_address_v6(void *arg)
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{
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or_options_t *options;
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tor_addr_t resolved_addr, test_addr;
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const char *method_used;
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char *hostname_out = NULL;
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bool retval;
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int prev_n_hostname_01010101;
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int prev_n_hostname_localhost;
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int prev_n_hostname_failure;
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int prev_n_gethostname_replacement;
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int prev_n_gethostname_failure;
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int prev_n_gethostname_localhost;
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int prev_n_get_interface_address6;
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int prev_n_get_interface_address6_failure;
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(void)arg;
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options = options_new();
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options_init(options);
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/*
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* CASE 1:
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* If options->Address is a valid IPv6 address string, we want
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* the corresponding address to be parsed and returned.
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*/
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config_line_append(&options->Address, "Address",
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"2a01:4f8:fff0:4f:266:37ff:fe2c:5d19");
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tor_addr_parse(&test_addr, "2a01:4f8:fff0:4f:266:37ff:fe2c:5d19");
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(retval == true);
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tt_want_str_op(method_used, OP_EQ, "CONFIGURED");
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tt_want(hostname_out == NULL);
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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config_free_lines(options->Address);
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/*
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* CASE 2:
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* If options->Address is a valid DNS address, we want find_my_address()
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* function to ask tor_addr_lookup() for help with resolving it
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* and return the address that was resolved (in host order).
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*/
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MOCK(tor_addr_lookup, tor_addr_lookup_01010101);
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config_line_append(&options->Address, "Address", "www.torproject.org");
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tor_addr_parse(&test_addr, "0101::0101");
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prev_n_hostname_01010101 = n_hostname_01010101;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(retval == true);
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tt_want(n_hostname_01010101 == prev_n_hostname_01010101 + 1);
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tt_want_str_op(method_used, OP_EQ, "RESOLVED");
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tt_want_str_op(hostname_out, OP_EQ, "www.torproject.org");
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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UNMOCK(tor_addr_lookup);
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config_free_lines(options->Address);
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tor_free(hostname_out);
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/*
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* CASE 3:
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* Given that options->Address is NULL, we want find_my_address()
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* to try and use tor_gethostname() to get hostname AND use
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* tor_addr_lookup() to get IP address.
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*/
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tor_addr_make_unspec(&resolved_addr);
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options->Address = NULL;
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tor_addr_parse(&test_addr, "0101::0101");
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MOCK(tor_gethostname, tor_gethostname_replacement);
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MOCK(tor_addr_lookup, tor_addr_lookup_01010101);
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prev_n_gethostname_replacement = n_gethostname_replacement;
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prev_n_hostname_01010101 = n_hostname_01010101;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(retval == true);
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tt_want(n_gethostname_replacement == prev_n_gethostname_replacement + 1);
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tt_want(n_hostname_01010101 == prev_n_hostname_01010101 + 1);
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tt_want_str_op(method_used, OP_EQ, "GETHOSTNAME");
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tt_want_str_op(hostname_out, OP_EQ, "onionrouter!");
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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UNMOCK(tor_gethostname);
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UNMOCK(tor_addr_lookup);
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tor_free(hostname_out);
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/*
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* CASE 4:
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* Given that options->Address is a local host address, we want
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* find_my_address() function to fail.
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*/
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tor_addr_make_unspec(&resolved_addr);
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config_line_append(&options->Address, "Address", "::1");
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tor_addr_parse(&test_addr, "::1");
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(tor_addr_is_null(&resolved_addr) == 1);
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tt_want(retval == false);
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config_free_lines(options->Address);
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tor_free(hostname_out);
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/*
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* CASE 5:
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* We want find_my_address() to fail if DNS address in options->Address
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* cannot be resolved.
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*/
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MOCK(tor_addr_lookup, tor_addr_lookup_failure);
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prev_n_hostname_failure = n_hostname_failure;
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config_line_append(&options->Address, "Address", "www.tor-project.org");
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_hostname_failure == prev_n_hostname_failure + 1);
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tt_want(tor_addr_is_null(&resolved_addr) == 1);
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tt_want(retval == false);
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UNMOCK(tor_addr_lookup);
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config_free_lines(options->Address);
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options->Address = NULL;
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tor_free(hostname_out);
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/*
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* CASE 6:
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* If options->Address is NULL AND gettting local hostname fails, we want
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* find_my_address() to fail as well.
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*/
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MOCK(tor_gethostname,tor_gethostname_failure);
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prev_n_gethostname_failure = n_gethostname_failure;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_gethostname_failure == prev_n_gethostname_failure + 1);
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tt_want(tor_addr_is_null(&resolved_addr) == 1);
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tt_want(retval == false);
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UNMOCK(tor_gethostname);
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tor_free(hostname_out);
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/*
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* CASE 7:
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* We want find_my_address() to try and get network interface address via
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* get_interface_address() if hostname returned by tor_gethostname() cannot
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* be resolved into IP address.
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*/
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MOCK(tor_gethostname, tor_gethostname_replacement);
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MOCK(tor_addr_lookup, tor_addr_lookup_failure);
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MOCK(get_interface_address6, get_interface_address6_08080808);
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tor_addr_parse(&test_addr, "0808::0808");
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prev_n_gethostname_replacement = n_gethostname_replacement;
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prev_n_get_interface_address6 = n_get_interface_address6;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(retval == true);
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tt_want_int_op(n_gethostname_replacement, OP_EQ,
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prev_n_gethostname_replacement + 1);
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tt_want_int_op(n_get_interface_address6, OP_EQ,
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prev_n_get_interface_address6 + 1);
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tt_want_str_op(method_used, OP_EQ, "INTERFACE");
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tt_want(hostname_out == NULL);
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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UNMOCK(get_interface_address);
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tor_free(hostname_out);
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/*
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* CASE 8:
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* Suppose options->Address is NULL AND hostname returned by
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* tor_gethostname() is unresolvable. We want find_my_address to fail if
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* get_interface_address() fails.
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*/
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MOCK(get_interface_address6, get_interface_address6_failure);
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prev_n_get_interface_address6_failure = n_get_interface_address6_failure;
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prev_n_gethostname_replacement = n_gethostname_replacement;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_get_interface_address6_failure ==
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prev_n_get_interface_address6_failure + 1);
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tt_want(n_gethostname_replacement ==
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prev_n_gethostname_replacement + 1);
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tt_want(retval == false);
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UNMOCK(get_interface_address);
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tor_free(hostname_out);
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/*
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* CASE 9:
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* Given that options->Address is NULL AND tor_addr_lookup()
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* fails AND hostname returned by gethostname() resolves
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* to local IP address, we want find_my_address() function to
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* call get_interface_address6(.,AF_INET6,.) and return IP address
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* the latter function has found.
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*/
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MOCK(tor_addr_lookup, tor_addr_lookup_failure);
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MOCK(tor_gethostname, tor_gethostname_replacement);
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MOCK(get_interface_address6, get_interface_address6_08080808);
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tor_addr_parse(&test_addr, "0808::0808");
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prev_n_gethostname_replacement = n_gethostname_replacement;
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prev_n_hostname_failure = n_hostname_failure;
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prev_n_get_interface_address6 = n_get_interface_address6;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(last_address6_family == AF_INET6);
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tt_want(n_get_interface_address6 == prev_n_get_interface_address6 + 1);
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tt_want(n_hostname_failure == prev_n_hostname_failure + 1);
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tt_want(n_gethostname_replacement == prev_n_gethostname_replacement + 1);
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tt_want(retval == true);
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tt_want_str_op(method_used, OP_EQ, "INTERFACE");
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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UNMOCK(tor_addr_lookup);
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UNMOCK(tor_gethostname);
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UNMOCK(get_interface_address6);
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tor_free(hostname_out);
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/*
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* CASE 10: We want find_my_address() to fail if all of the following
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* are true:
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* 1. options->Address is not NULL
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* 2. ... but it cannot be converted to struct in_addr by
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* tor_inet_aton()
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* 3. ... and tor_addr_lookup() fails to resolve the
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* options->Address
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*/
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MOCK(tor_addr_lookup, tor_addr_lookup_failure);
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prev_n_hostname_failure = n_hostname_failure;
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config_line_append(&options->Address, "Address", "some_hostname");
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_hostname_failure == prev_n_hostname_failure + 1);
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tt_want(retval == false);
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UNMOCK(tor_gethostname);
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UNMOCK(tor_addr_lookup);
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tor_free(hostname_out);
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/*
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* CASE 11:
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* Suppose the following sequence of events:
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* 1. options->Address is NULL
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* 2. tor_gethostname() succeeds to get hostname of machine Tor
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* if running on.
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* 3. Hostname from previous step cannot be converted to
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* address by using tor_inet_aton() function.
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* 4. However, tor_addr_lookup() succeeds in resolving the
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* hostname from step 2.
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* 5. Unfortunately, tor_addr_is_internal() deems this address
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* to be internal.
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* 6. get_interface_address6(.,AF_INET,.) returns non-internal
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* IPv4
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*
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* We want resolve_my_addr() to succeed with method "INTERFACE"
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* and address from step 6.
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*/
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config_free_lines(options->Address);
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options->Address = NULL;
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tor_addr_parse(&test_addr, "0808::0808");
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MOCK(tor_gethostname, tor_gethostname_replacement);
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MOCK(tor_addr_lookup, tor_addr_lookup_localhost);
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MOCK(get_interface_address6, get_interface_address6_08080808);
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prev_n_gethostname_replacement = n_gethostname_replacement;
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prev_n_hostname_localhost = n_hostname_localhost;
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prev_n_get_interface_address6 = n_get_interface_address6;
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retval = find_my_address(options, AF_INET6, LOG_NOTICE, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_gethostname_replacement == prev_n_gethostname_replacement + 1);
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tt_want(n_hostname_localhost == prev_n_hostname_localhost + 1);
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tt_want(n_get_interface_address6 == prev_n_get_interface_address6 + 1);
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tt_str_op(method_used, OP_EQ, "INTERFACE");
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tt_ptr_op(hostname_out, OP_EQ, NULL);
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tt_want(retval == true);
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tt_assert(tor_addr_eq(&resolved_addr, &test_addr));
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/*
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* CASE 11b:
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* 1-5 as above.
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* 6. get_interface_address6() fails.
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*
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* In this subcase, we want find_my_address() to fail.
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*/
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UNMOCK(get_interface_address6);
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MOCK(get_interface_address6, get_interface_address6_failure);
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prev_n_gethostname_replacement = n_gethostname_replacement;
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prev_n_hostname_localhost = n_hostname_localhost;
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prev_n_get_interface_address6_failure = n_get_interface_address6_failure;
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retval = find_my_address(options, AF_INET6, LOG_DEBUG, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_gethostname_replacement == prev_n_gethostname_replacement + 1);
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tt_want(n_hostname_localhost == prev_n_hostname_localhost + 1);
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tt_want(n_get_interface_address6_failure ==
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prev_n_get_interface_address6_failure + 1);
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tt_want(retval == false);
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UNMOCK(tor_gethostname);
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UNMOCK(tor_addr_lookup);
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UNMOCK(get_interface_address6);
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/* CASE 12:
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* Suppose the following happens:
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* 1. options->Address is NULL AND options->DirAuthorities is non-NULL
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* 2. tor_gethostname() succeeds in getting hostname of a machine ...
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* 3. ... which is successfully parsed by tor_inet_aton() ...
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* 4. into IPv4 address that tor_addr_is_inernal() considers to be
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* internal.
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*
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* In this case, we want find_my_address() to fail.
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*/
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tor_free(options->Address);
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options->Address = NULL;
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options->DirAuthorities = tor_malloc_zero(sizeof(config_line_t));
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MOCK(tor_gethostname,tor_gethostname_localhost);
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prev_n_gethostname_localhost = n_gethostname_localhost;
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retval = find_my_address(options, AF_INET6, LOG_DEBUG, &resolved_addr,
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&method_used, &hostname_out);
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tt_want(n_gethostname_localhost == prev_n_gethostname_localhost + 1);
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tt_want(retval == false);
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UNMOCK(tor_gethostname);
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done:
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config_free_lines(options->Address);
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tor_free(options->DirAuthorities);
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or_options_free(options);
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tor_free(hostname_out);
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UNMOCK(tor_gethostname);
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UNMOCK(tor_addr_lookup);
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UNMOCK(get_interface_address);
|
||||
UNMOCK(get_interface_address6);
|
||||
UNMOCK(tor_gethostname);
|
||||
}
|
||||
|
||||
static void
|
||||
test_config_find_my_address_v4(void *arg)
|
||||
{
|
||||
@@ -6246,6 +6660,7 @@ struct testcase_t config_tests[] = {
|
||||
CONFIG_TEST(default_dir_servers, TT_FORK),
|
||||
CONFIG_TEST(default_fallback_dirs, 0),
|
||||
CONFIG_TEST(find_my_address_v4, TT_FORK),
|
||||
CONFIG_TEST(find_my_address_v6, TT_FORK),
|
||||
CONFIG_TEST(addressmap, 0),
|
||||
CONFIG_TEST(parse_bridge_line, 0),
|
||||
CONFIG_TEST(parse_transport_options_line, 0),
|
||||
|
||||
Reference in New Issue
Block a user