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- /* Copyright (c) 2001-2004, Roger Dingledine.
- * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2018, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #include "core/or/or.h"
- #include "lib/container/buffers.h"
- #include "app/config/config.h"
- #include "core/mainloop/connection.h"
- #include "core/proto/proto_socks.h"
- #include "test/test.h"
- #include "test/log_test_helpers.h"
- #include "core/or/socks_request_st.h"
- #include "lib/net/socks5_status.h"
- typedef struct socks_test_data_t {
- socks_request_t *req;
- buf_t *buf;
- } socks_test_data_t;
- static void *
- socks_test_setup(const struct testcase_t *testcase)
- {
- socks_test_data_t *data = tor_malloc(sizeof(socks_test_data_t));
- (void)testcase;
- data->buf = buf_new_with_capacity(256);
- data->req = socks_request_new();
- config_register_addressmaps(get_options());
- return data;
- }
- static int
- socks_test_cleanup(const struct testcase_t *testcase, void *ptr)
- {
- socks_test_data_t *data = ptr;
- (void)testcase;
- buf_free(data->buf);
- socks_request_free(data->req);
- tor_free(data);
- return 1;
- }
- static const struct testcase_setup_t socks_setup = {
- socks_test_setup, socks_test_cleanup
- };
- #define SOCKS_TEST_INIT() \
- socks_test_data_t *testdata = ptr; \
- buf_t *buf = testdata->buf; \
- socks_request_t *socks = testdata->req;
- #define ADD_DATA(buf, s) \
- buf_add(buf, s, sizeof(s)-1)
- static void
- socks_request_clear(socks_request_t *socks)
- {
- tor_free(socks->username);
- tor_free(socks->password);
- memset(socks, 0, sizeof(socks_request_t));
- }
- /** Perform unsupported SOCKS 4 commands */
- static void
- test_socks_4_unsupported_commands(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 4 Send BIND [02] to IP address 2.2.2.2:4369 */
- ADD_DATA(buf, "\x04\x02\x11\x11\x02\x02\x02\x02\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- tt_int_op(4,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
- done:
- ;
- }
- /** Perform supported SOCKS 4 commands */
- static void
- test_socks_4_supported_commands(void *ptr)
- {
- SOCKS_TEST_INIT();
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- /* SOCKS 4 Send CONNECT [01] to IP address 2.2.2.2:4370 */
- ADD_DATA(buf, "\x04\x01\x11\x12\x02\x02\x02\x03\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, 1);
- tt_int_op(4,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
- tt_int_op(SOCKS_COMMAND_CONNECT,OP_EQ, socks->command);
- tt_str_op("2.2.2.3",OP_EQ, socks->address);
- tt_int_op(4370,OP_EQ, socks->port);
- tt_assert(socks->got_auth == 0);
- tt_assert(! socks->username);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 4 Send CONNECT [01] to IP address 2.2.2.2:4369 with userid*/
- ADD_DATA(buf, "\x04\x01\x11\x12\x02\x02\x02\x04me\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
- OP_EQ, 1);
- tt_int_op(4,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
- tt_int_op(SOCKS_COMMAND_CONNECT,OP_EQ, socks->command);
- tt_str_op("2.2.2.4",OP_EQ, socks->address);
- tt_int_op(4370,OP_EQ, socks->port);
- tt_assert(socks->got_auth == 1);
- tt_assert(socks->username);
- tt_int_op(2,OP_EQ, socks->usernamelen);
- tt_mem_op("me",OP_EQ, socks->username, 2);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 4a Send RESOLVE [F0] request for torproject.org */
- ADD_DATA(buf, "\x04\xF0\x01\x01\x00\x00\x00\x02me\x00torproject.org\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, 1,
- get_options()->SafeSocks),
- OP_EQ, 1);
- tt_int_op(4,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, socks->replylen); /* XXX: shouldn't tor reply? */
- tt_str_op("torproject.org",OP_EQ, socks->address);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- done:
- ;
- }
- static void
- test_socks_4_bad_arguments(void *ptr)
- {
- SOCKS_TEST_INIT();
- setup_capture_of_logs(LOG_DEBUG);
- /* Try with 0 IPv4 address */
- ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x00\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Port or DestIP is zero.");
- mock_clean_saved_logs();
- /* Try with 0 port */
- ADD_DATA(buf, "\x04\x01\x00\x00\x01\x02\x03\x04\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Port or DestIP is zero.");
- mock_clean_saved_logs();
- /* Try with 2000-byte username (!) */
- ADD_DATA(buf, "\x04\x01\x00\x50\x01\x02\x03\x04");
- int i;
- for (i = 0; i < 200; ++i) {
- ADD_DATA(buf, "1234567890");
- }
- ADD_DATA(buf, "\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
- OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("user name too long; rejecting.");
- mock_clean_saved_logs();
- /* Try with 2000-byte hostname */
- ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00");
- for (i = 0; i < 200; ++i) {
- ADD_DATA(buf, "1234567890");
- }
- ADD_DATA(buf, "\x00");
- {
- const char *p;
- size_t s;
- buf_pullup(buf, 9999, &p, &s);
- }
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
- OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Destaddr too long. Rejecting.");
- mock_clean_saved_logs();
- /* Try with 2000-byte hostname, not terminated. */
- ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00");
- for (i = 0; i < 200; ++i) {
- ADD_DATA(buf, "1234567890");
- }
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0),
- OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Destaddr too long.");
- mock_clean_saved_logs();
- /* Socks4, bogus hostname */
- ADD_DATA(buf, "\x04\x01\x00\x50\x00\x00\x00\x01\x00" "---\x00" );
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Your application (using socks4 to port 80) "
- "gave Tor a malformed hostname: ");
- mock_clean_saved_logs();
- done:
- teardown_capture_of_logs();
- }
- /** Perform unsupported SOCKS 5 commands */
- static void
- test_socks_5_unsupported_commands(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 5 Send unsupported BIND [02] command */
- ADD_DATA(buf, "\x05\x02\x00\x01");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, 0);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- ADD_DATA(buf, "\x05\x02\x00\x01\x02\x02\x02\x01\x01\x01");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_COMMAND_NOT_SUPPORTED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- buf_clear(buf);
- socks_request_clear(socks);
- /* SOCKS 5 Send unsupported UDP_ASSOCIATE [03] command */
- ADD_DATA(buf, "\x05\x02\x00\x01");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, 0);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- ADD_DATA(buf, "\x05\x03\x00\x01\x02\x02\x02\x01\x01\x01");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_COMMAND_NOT_SUPPORTED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- done:
- ;
- }
- /** Perform supported SOCKS 5 commands */
- static void
- test_socks_5_supported_commands(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 5 Send CONNECT [01] to IP address 2.2.2.2:4369 */
- ADD_DATA(buf, "\x05\x01\x00");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, 0);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- ADD_DATA(buf, "\x05\x01\x00\x01\x02\x02\x02\x02\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, 1);
- tt_str_op("2.2.2.2",OP_EQ, socks->address);
- tt_int_op(4369,OP_EQ, socks->port);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 Send CONNECT [01] to one of the ipv6 addresses for
- torproject.org:80 */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\x01\x00\x04"
- "\x20\x02\x41\xb8\x02\x02\x0d\xeb\x02\x13\x21\xff\xfe\x20\x14\x26"
- "\x00\x50");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, 1);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_str_op("[2002:41b8:202:deb:213:21ff:fe20:1426]",OP_EQ, socks->address);
- tt_int_op(80,OP_EQ, socks->port);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 Send CONNECT [01] to FQDN torproject.org:4369 */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\x01\x00\x03\x0Etorproject.org\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, 1,
- get_options()->SafeSocks),OP_EQ, 1);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_str_op("torproject.org",OP_EQ, socks->address);
- tt_int_op(4369,OP_EQ, socks->port);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 Send RESOLVE [F0] request for torproject.org:4369 */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF0\x00\x03\x0Etorproject.org\x01\x02");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, 1);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_str_op("torproject.org",OP_EQ, socks->address);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 Should NOT reject RESOLVE [F0] request for IPv4 address
- * string if SafeSocks is enabled. */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF0\x00\x03\x07");
- ADD_DATA(buf, "8.8.8.8");
- ADD_DATA(buf, "\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
- OP_EQ, 1);
- tt_str_op("8.8.8.8", OP_EQ, socks->address);
- tt_int_op(4369, OP_EQ, socks->port);
- tt_int_op(0, OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 should NOT reject RESOLVE [F0] request for IPv6 address
- * string if SafeSocks is enabled. */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF0\x00\x03\x29");
- ADD_DATA(buf, "[2001:0db8:85a3:0000:0000:8a2e:0370:7334]");
- ADD_DATA(buf, "\x01\x02");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
- OP_EQ, 1);
- tt_str_op("[2001:0db8:85a3:0000:0000:8a2e:0370:7334]", OP_EQ,
- socks->address);
- tt_int_op(258, OP_EQ, socks->port);
- tt_int_op(0, OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* Also allow bracket-less form. */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF0\x00\x03\x27");
- ADD_DATA(buf, "2001:0db8:85a3:0000:0000:8a2e:0370:7334");
- ADD_DATA(buf, "\x01\x02");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
- OP_EQ, 1);
- tt_str_op("2001:0db8:85a3:0000:0000:8a2e:0370:7334", OP_EQ,
- socks->address);
- tt_int_op(258, OP_EQ, socks->port);
- tt_int_op(0, OP_EQ, buf_datalen(buf));
- socks_request_clear(socks);
- /* SOCKS 5 Send RESOLVE_PTR [F1] for IP address 2.2.2.5 */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF1\x00\x01\x02\x02\x02\x05\x01\x03");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, 1);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_str_op("2.2.2.5",OP_EQ, socks->address);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- done:
- ;
- }
- /** Perform SOCKS 5 authentication */
- static void
- test_socks_5_no_authenticate(void *ptr)
- {
- SOCKS_TEST_INIT();
- /*SOCKS 5 No Authentication */
- ADD_DATA(buf,"\x05\x01\x00");
- tt_assert(!fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks));
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(SOCKS_NO_AUTH,OP_EQ, socks->reply[1]);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- /*SOCKS 5 Send username/password anyway - pretend to be broken */
- ADD_DATA(buf,"\x01\x02\x01\x01\x02\x01\x01");
- tt_assert(!fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks));
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(1,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_int_op(2,OP_EQ, socks->usernamelen);
- tt_int_op(2,OP_EQ, socks->passwordlen);
- tt_mem_op("\x01\x01",OP_EQ, socks->username, 2);
- tt_mem_op("\x01\x01",OP_EQ, socks->password, 2);
- done:
- ;
- }
- /** Perform SOCKS 5 authentication */
- static void
- test_socks_5_authenticate(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 5 Negotiate username/password authentication */
- ADD_DATA(buf, "\x05\x01\x02");
- tt_assert(!fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks));
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(SOCKS_USER_PASS,OP_EQ, socks->reply[1]);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- /* SOCKS 5 Send username/password */
- ADD_DATA(buf, "\x01\x02me\x08mypasswd");
- tt_assert(!fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks));
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(1,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_int_op(2,OP_EQ, socks->usernamelen);
- tt_int_op(8,OP_EQ, socks->passwordlen);
- tt_mem_op("me",OP_EQ, socks->username, 2);
- tt_mem_op("mypasswd",OP_EQ, socks->password, 8);
- done:
- ;
- }
- /** Perform SOCKS 5 authentication and send data all in one go */
- static void
- test_socks_5_authenticate_with_data(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 5 Negotiate username/password authentication */
- ADD_DATA(buf, "\x05\x01\x02");
- tt_assert(!fetch_from_buf_socks(buf, socks,
- get_options()->TestSocks,
- get_options()->SafeSocks));
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(SOCKS_USER_PASS,OP_EQ, socks->reply[1]);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, buf_datalen(buf));
- /* SOCKS 5 Send username/password */
- /* SOCKS 5 Send CONNECT [01] to IP address 2.2.2.2:4369 */
- ADD_DATA(buf, "\x01\x02me\x03you\x05\x01\x00\x01\x02\x02\x02\x02\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, 1);
- tt_int_op(5,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(1,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- tt_str_op("2.2.2.2",OP_EQ, socks->address);
- tt_int_op(4369,OP_EQ, socks->port);
- tt_int_op(2,OP_EQ, socks->usernamelen);
- tt_int_op(3,OP_EQ, socks->passwordlen);
- tt_mem_op("me",OP_EQ, socks->username, 2);
- tt_mem_op("you",OP_EQ, socks->password, 3);
- done:
- ;
- }
- /** Try to negotiate an unsupported authentication type */
- static void
- test_socks_5_auth_unsupported_type(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* None of these authentication types are recognized. */
- ADD_DATA(buf, "\x05\x03\x99\x21\x10");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- tt_int_op(0,OP_EQ, socks->socks_version);
- tt_int_op(2,OP_EQ, socks->replylen);
- tt_int_op(5,OP_EQ, socks->reply[0]);
- tt_int_op(0xff,OP_EQ, socks->reply[1]);
- done:
- ;
- }
- /** Try to negotiate an unsupported version of username/password auth. */
- static void
- test_socks_5_auth_unsupported_version(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* Negotiate username/password */
- ADD_DATA(buf, "\x05\x01\x02");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, 0);
- tt_int_op(0,OP_EQ, buf_datalen(buf)); /* buf should be drained */
- /* Now, suggest an unrecognized username/password version */
- ADD_DATA(buf, "\x02\x05" "hello" "\x05" "world");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- done:
- ;
- }
- /** Perform SOCKS 5 authentication before method negotiated */
- static void
- test_socks_5_auth_before_negotiation(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* SOCKS 5 Send username/password */
- ADD_DATA(buf, "\x01\x02me\x02me");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),
- OP_EQ, -1);
- tt_int_op(0,OP_EQ, socks->socks_version);
- tt_int_op(0,OP_EQ, socks->replylen);
- tt_int_op(0,OP_EQ, socks->reply[0]);
- tt_int_op(0,OP_EQ, socks->reply[1]);
- done:
- ;
- }
- /** Perform malformed SOCKS 5 commands */
- static void
- test_socks_5_malformed_commands(void *ptr)
- {
- SOCKS_TEST_INIT();
- /* XXX: Stringified address length > MAX_SOCKS_ADDR_LEN will never happen */
- /** SOCKS 5 Send CONNECT [01] to IP address 2.2.2.2:4369, with SafeSocks set
- */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\x01\x00\x01\x02\x02\x02\x02\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks, 1),
- OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_NOT_ALLOWED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- buf_clear(buf);
- socks_request_clear(socks);
- /* SOCKS 5 Send RESOLVE_PTR [F1] for FQDN torproject.org */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\xF1\x00\x03\x0Etorproject.org\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_ADDRESS_TYPE_NOT_SUPPORTED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- buf_clear(buf);
- socks_request_clear(socks);
- /* XXX: len + 1 > MAX_SOCKS_ADDR_LEN (FQDN request) will never happen */
- /* SOCKS 5 Send CONNECT [01] to FQDN """"".com */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\x01\x00\x03\x09\"\"\"\"\".com\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_GENERAL_ERROR,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- buf_clear(buf);
- socks_request_clear(socks);
- /* SOCKS 5 Send CONNECT [01] to address type 0x23 */
- ADD_DATA(buf, "\x05\x01\x00");
- ADD_DATA(buf, "\x05\x01\x00\x23\x02\x02\x02\x02\x11\x11");
- tt_int_op(fetch_from_buf_socks(buf, socks, get_options()->TestSocks,
- get_options()->SafeSocks),OP_EQ, -1);
- tt_int_op(5,OP_EQ,socks->socks_version);
- tt_int_op(10,OP_EQ,socks->replylen);
- tt_int_op(5,OP_EQ,socks->reply[0]);
- tt_int_op(SOCKS5_ADDRESS_TYPE_NOT_SUPPORTED,OP_EQ,socks->reply[1]);
- tt_int_op(1,OP_EQ,socks->reply[3]);
- done:
- ;
- }
- static void
- test_socks_5_bad_arguments(void *ptr)
- {
- SOCKS_TEST_INIT();
- setup_capture_of_logs(LOG_DEBUG);
- /* Socks5, bogus hostname */
- ADD_DATA(buf, "\x05\x01\x00" "\x05\x01\x00\x03\x03" "---" "\x00\x50" );
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Your application (using socks5 to port 80) "
- "gave Tor a malformed hostname: ");
- mock_clean_saved_logs();
- socks_request_clear(socks);
- done:
- teardown_capture_of_logs();
- }
- /** check for correct behavior when the socks command has not arrived. */
- static void
- test_socks_truncated(void *ptr)
- {
- const struct {
- enum { NONE, AUTH, ALL } setup;
- const char *body;
- size_t len;
- } commands[] = {
- /* SOCKS4 */
- /* Connect, to an IP. */
- { NONE, "\x04\x01\x05\x05\x01\x02\x03\x04\x00", 9},
- /* Connect, to an IP, with authentication. */
- { NONE, "\x04\x01\x05\x05\x01\x02\x03\x04hello\x00", 14},
- /* SOCKS4A */
- /* Connect, to a hostname */
- { NONE, "\x04\x01\x09\x09\x00\x00\x00\x01\x00www.example.com\x00", 25},
- /* Connect, to a hostname, with authentication */
- { NONE, "\x04\x01\x09\x09\x00\x00\x00\x01hi\x00www.example.com\x00", 27},
- /* SOCKS5 */
- /* initial handshake */
- { NONE, "\x05\x00", 2 },
- /* no-auth handshake */
- { NONE, "\x05\x03\x99\x21\x10", 5 },
- /* SOCSK5, username-password, all empty. */
- { AUTH, "\x01\x00\x00", 3 },
- /* SOCSK5, username-password, 1 char each. */
- { AUTH, "\x01\x01x\x01y", 5 },
- /* SOCSK5, username-password, max length. */
- { AUTH, "\x01\xff"
- "Ogni tempo ha il suo fascismo: se ne notano i segni premonitori "
- "dovunque la concentrazione di potere nega al cittadino la "
- "possibilit\xc3\xa0 e la capacit\xc3\xa0 di esprimere ed attuare la "
- "sua volont\xc3\xa0. A questo si arriva in molti modi, non "
- "necessariamente col terror"
- "\xff"
- "e dell'intimidazione poliziesca, ma anche negando o distorcendo "
- "l'informazione, inquinando la giustizia, paralizzando la scuola, "
- "diffondendo in molti modi sottili la nostalgia per un mondo in cui "
- "regnava sovrano l'ordine, ed in cui la sicurezza dei pochi "
- /* privilegiati riposava sul lavoro forzato e sul silenzio forzato dei
- molti. -- Primo Levi */ , 513 },
- /* Socks5, IPv4 address */
- { ALL, "\x05\x01\x00\x01\x01\x02\x03\x04\x20\x20", 10 },
- /* Socks5, IPv6 address */
- { ALL, "\x05\x01\x00\x04"
- "\x49\x20\x48\x41\x5a\x20\x45\x41\x53\x54\x45\x52\x20\x45\x47\x47"
- "\x20\x20", 22 },
- /* Socks5, hostname, empty. */
- { ALL, "\x05\x01\x00\x03" "\x00" "\x00\x50", 7 },
- /* Socks5, hostname, moderate. */
- { ALL, "\x05\x01\x00\x03" "\x11" "onion.example.com" "\x00\x50", 24 },
- /* Socks5, hostname, maximum. */
- { ALL, "\x05\x01\x00\x03" "\xff"
- "whatsoever.I.shall.see.or.hear.in.the.course.of.my.profession.as.well."
- "as.outside.my.profession.in.my.intercourse.with.men.if.it.be.what."
- "should.not.be.published.abroad.I.will.never.divulge.holding.such."
- "things.to.be.holy.secrets.x.hippocratic.oath.wikipedia"
- "\x00\x50", 262 },
- };
- unsigned i, j;
- SOCKS_TEST_INIT();
- for (i = 0; i < ARRAY_LENGTH(commands); ++i) {
- for (j = 0; j < commands[i].len; ++j) {
- switch (commands[i].setup) {
- default: /* Falls through */
- case NONE:
- /* This test calls for no setup on the socks state. */
- break;
- case AUTH:
- /* This test calls for the socks state to be waiting for
- * username/password authentication */
- ADD_DATA(buf, "\x05\x01\x02");
- tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
- tt_int_op(0, OP_EQ, buf_datalen(buf));
- break;
- case ALL:
- /* This test calls for the socks state to be waiting for
- * the connection request */
- ADD_DATA(buf, "\x05\x01\x00");
- tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
- tt_int_op(0, OP_EQ, buf_datalen(buf));
- }
- TT_BLATHER(("Checking command %u, length %u, omitting char %u", i, j,
- (unsigned)commands[i].body[j]));
- buf_add(buf, commands[i].body, j);
- /* This should return 0 meaning "not done yet" */
- tt_int_op(0, OP_EQ, fetch_from_buf_socks(buf, socks, 0, 0));
- tt_uint_op(j, OP_EQ, buf_datalen(buf)); /* Nothing was drained */
- buf_clear(buf);
- socks_request_free(testdata->req);
- socks = testdata->req = socks_request_new();
- }
- }
- done:
- ;
- }
- static void
- test_socks_wrong_protocol(void *ptr)
- {
- SOCKS_TEST_INIT();
- setup_capture_of_logs(LOG_DEBUG);
- /* HTTP request. */
- ADD_DATA(buf, "GET /index.html HTTP/1.0" );
- tt_int_op(fetch_from_buf_socks(buf, socks, 1, 0), OP_EQ, -1);
- buf_clear(buf);
- expect_log_msg_containing("Socks version 71 not recognized. "
- "(This port is not an HTTP proxy;");
- mock_clean_saved_logs();
- socks_request_clear(socks);
- done:
- teardown_capture_of_logs();
- }
- /* Check our client-side socks4 parsing (that is to say, our parsing of
- * server responses).
- */
- static void
- test_socks_client_v4(void *arg)
- {
- (void)arg;
- buf_t *buf = buf_new();
- char *reason = NULL;
- /* Legit socks4 response, success */
- ADD_DATA(buf, "\x04\x5a\x20\x25\x01\x02\x03\x04");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf, PROXY_SOCKS4_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Legit socks4 response, failure. */
- ADD_DATA(buf, "\x04\x5b\x20\x25\x01\x02\x03\x04");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf, PROXY_SOCKS4_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_NE, NULL);
- tt_str_op(reason, OP_EQ, "server rejected connection");
- done:
- buf_free(buf);
- tor_free(reason);
- }
- /* Check our client-side socks5 authentication-negotiation parsing (that is to
- * say, our parsing of server responses).
- */
- static void
- test_socks_client_v5_auth(void *arg)
- {
- (void)arg;
- buf_t *buf = buf_new();
- char *reason = NULL;
- /* Legit socks5 responses, got a method we like. */
- ADD_DATA(buf, "\x05\x00");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_METHOD_NONE,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Same, but we wanted something else. */
- ADD_DATA(buf, "\x05\x00");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Same, and they offered a password. */
- ADD_DATA(buf, "\x05\x02");
- tt_int_op(2, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* They rejected our method, or selected something we don't know. */
- ADD_DATA(buf, "\x05\xff");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_METHOD_NONE,
- &reason));
- tt_str_op(reason, OP_EQ, "server doesn't support any of our available "
- "authentication methods");
- buf_clear(buf);
- tor_free(reason);
- ADD_DATA(buf, "\x05\xff");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929,
- &reason));
- tt_str_op(reason, OP_EQ, "server doesn't support any of our available "
- "authentication methods");
- tor_free(reason);
- buf_clear(buf);
- /* Now check for authentication responses: check success and failure. */
- ADD_DATA(buf, "\x01\x00");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_RFC1929_OK,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- ADD_DATA(buf, "\x01\xf0");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_AUTH_RFC1929_OK,
- &reason));
- tt_ptr_op(reason, OP_NE, NULL);
- tt_str_op(reason, OP_EQ, "authentication failed");
- done:
- buf_free(buf);
- tor_free(reason);
- }
- /* Check our client-side socks5 connect parsing (that is to say, our parsing
- * of server responses).
- */
- static void
- test_socks_client_v5_connect(void *arg)
- {
- (void)arg;
- buf_t *buf = buf_new();
- char *reason = NULL;
- /* Legit socks5 responses, success, ipv4. */
- ADD_DATA(buf, "\x05\x00\x00\x01\x01\x02\x03\x04\x00\x05");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Legit socks5 responses, success, ipv6. */
- ADD_DATA(buf, "\x05\x00\x00\x04"
- "abcdefghijklmnop"
- "\x00\x05");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Legit socks5 responses, success, hostname. */
- ADD_DATA(buf, "\x05\x00\x00\x03\x12"
- "gopher.example.com"
- "\x00\x05");
- tt_int_op(1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_EQ, NULL);
- tt_int_op(buf_datalen(buf), OP_EQ, 0);
- /* Legit socks5 responses, failure, hostname. */
- ADD_DATA(buf, "\x05\x03\x00\x03\x12"
- "gopher.example.com"
- "\x00\x05");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_NE, NULL);
- tt_str_op(reason, OP_EQ, "Network unreachable");
- tor_free(reason);
- buf_clear(buf);
- /* Bogus socks5 responses: what is address type 0x17? */
- ADD_DATA(buf, "\x05\x03\x00\x17\x12 blah blah");
- tt_int_op(-1, OP_EQ,
- fetch_from_buf_socks_client(buf,
- PROXY_SOCKS5_WANT_CONNECT_OK,
- &reason));
- tt_ptr_op(reason, OP_NE, NULL);
- tt_str_op(reason, OP_EQ, "invalid response to connect request");
- buf_clear(buf);
- done:
- buf_free(buf);
- tor_free(reason);
- }
- static void
- test_socks_client_truncated(void *arg)
- {
- (void)arg;
- buf_t *buf = buf_new();
- char *reason = NULL;
- #define S(str) str, (sizeof(str)-1)
- const struct {
- int state;
- const char *body;
- size_t len;
- } replies[] = {
- { PROXY_SOCKS4_WANT_CONNECT_OK, S("\x04\x5a\x20\x25\x01\x02\x03\x04") },
- { PROXY_SOCKS4_WANT_CONNECT_OK, S("\x04\x5b\x20\x25\x01\x02\x03\x04") },
- { PROXY_SOCKS5_WANT_AUTH_METHOD_NONE, S("\x05\x00") },
- { PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929, S("\x05\x00") },
- { PROXY_SOCKS5_WANT_AUTH_RFC1929_OK, S("\x01\x00") },
- { PROXY_SOCKS5_WANT_CONNECT_OK,
- S("\x05\x00\x00\x01\x01\x02\x03\x04\x00\x05") },
- { PROXY_SOCKS5_WANT_CONNECT_OK,
- S("\x05\x00\x00\x04" "abcdefghijklmnop" "\x00\x05") },
- { PROXY_SOCKS5_WANT_CONNECT_OK,
- S("\x05\x00\x00\x03\x12" "gopher.example.com" "\x00\x05") },
- { PROXY_SOCKS5_WANT_CONNECT_OK,
- S("\x05\x03\x00\x03\x12" "gopher.example.com""\x00\x05") },
- { PROXY_SOCKS5_WANT_CONNECT_OK,
- S("\x05\x03\x00\x17") },
- };
- unsigned i, j;
- for (i = 0; i < ARRAY_LENGTH(replies); ++i) {
- for (j = 0; j < replies[i].len; ++j) {
- TT_BLATHER(("Checking command %u, length %u", i, j));
- buf_add(buf, replies[i].body, j);
- /* This should return 0 meaning "not done yet" */
- tt_int_op(0, OP_EQ,
- fetch_from_buf_socks_client(buf, replies[i].state, &reason));
- tt_uint_op(j, OP_EQ, buf_datalen(buf)); /* Nothing was drained */
- buf_clear(buf);
- tt_ptr_op(reason, OP_EQ, NULL);
- }
- }
- done:
- tor_free(reason);
- buf_free(buf);
- }
- #define SOCKSENT(name) \
- { #name, test_socks_##name, TT_FORK, &socks_setup, NULL }
- struct testcase_t socks_tests[] = {
- SOCKSENT(4_unsupported_commands),
- SOCKSENT(4_supported_commands),
- SOCKSENT(4_bad_arguments),
- SOCKSENT(5_unsupported_commands),
- SOCKSENT(5_supported_commands),
- SOCKSENT(5_no_authenticate),
- SOCKSENT(5_auth_unsupported_type),
- SOCKSENT(5_auth_unsupported_version),
- SOCKSENT(5_auth_before_negotiation),
- SOCKSENT(5_authenticate),
- SOCKSENT(5_authenticate_with_data),
- SOCKSENT(5_malformed_commands),
- SOCKSENT(5_bad_arguments),
- SOCKSENT(truncated),
- SOCKSENT(wrong_protocol),
- { "client/v4", test_socks_client_v4, TT_FORK, NULL, NULL },
- { "client/v5_auth", test_socks_client_v5_auth, TT_FORK, NULL, NULL },
- { "client/v5_connect", test_socks_client_v5_connect, TT_FORK, NULL, NULL },
- { "client/truncated", test_socks_client_truncated, TT_FORK, NULL, NULL },
- END_OF_TESTCASES
- };
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