/* Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2019, The Tor Project, Inc. */ /* See LICENSE for licensing information */ #include "orconfig.h" #define PT_PRIVATE #define UTIL_PRIVATE #define STATEFILE_PRIVATE #define CONTROL_PRIVATE #define SUBPROCESS_PRIVATE #include "core/or/or.h" #include "app/config/config.h" #include "app/config/confparse.h" #include "feature/control/control.h" #include "feature/client/transports.h" #include "core/or/circuitbuild.h" #include "app/config/statefile.h" #include "test/test.h" #include "lib/process/subprocess.h" #include "lib/encoding/confline.h" #include "lib/net/resolve.h" #include "app/config/or_state_st.h" static void reset_mp(managed_proxy_t *mp) { mp->conf_state = PT_PROTO_LAUNCHED; SMARTLIST_FOREACH(mp->transports, transport_t *, t, transport_free(t)); smartlist_clear(mp->transports); } static void test_pt_parsing(void *arg) { char line[200]; transport_t *transport = NULL; tor_addr_t test_addr; managed_proxy_t *mp = tor_malloc_zero(sizeof(managed_proxy_t)); (void)arg; mp->conf_state = PT_PROTO_INFANT; mp->transports = smartlist_new(); /* incomplete cmethod */ strlcpy(line,"CMETHOD trebuchet",sizeof(line)); tt_int_op(parse_cmethod_line(line, mp), OP_LT, 0); reset_mp(mp); /* wrong proxy type */ strlcpy(line,"CMETHOD trebuchet dog 127.0.0.1:1999",sizeof(line)); tt_int_op(parse_cmethod_line(line, mp), OP_LT, 0); reset_mp(mp); /* wrong addrport */ strlcpy(line,"CMETHOD trebuchet socks4 abcd",sizeof(line)); tt_int_op(parse_cmethod_line(line, mp), OP_LT, 0); reset_mp(mp); /* correct line */ strlcpy(line,"CMETHOD trebuchet socks5 127.0.0.1:1999",sizeof(line)); tt_int_op(parse_cmethod_line(line, mp), OP_EQ, 0); tt_int_op(smartlist_len(mp->transports), OP_EQ, 1); transport = smartlist_get(mp->transports, 0); /* test registered address of transport */ tor_addr_parse(&test_addr, "127.0.0.1"); tt_assert(tor_addr_eq(&test_addr, &transport->addr)); /* test registered port of transport */ tt_uint_op(transport->port, OP_EQ, 1999); /* test registered SOCKS version of transport */ tt_int_op(transport->socks_version, OP_EQ, PROXY_SOCKS5); /* test registered name of transport */ tt_str_op(transport->name,OP_EQ, "trebuchet"); reset_mp(mp); /* incomplete smethod */ strlcpy(line,"SMETHOD trebuchet",sizeof(line)); tt_int_op(parse_smethod_line(line, mp), OP_LT, 0); reset_mp(mp); /* wrong addr type */ strlcpy(line,"SMETHOD trebuchet abcd",sizeof(line)); tt_int_op(parse_smethod_line(line, mp), OP_LT, 0); reset_mp(mp); /* cowwect */ strlcpy(line,"SMETHOD trebuchy 127.0.0.2:2999",sizeof(line)); tt_int_op(parse_smethod_line(line, mp), OP_EQ, 0); tt_int_op(smartlist_len(mp->transports), OP_EQ, 1); transport = smartlist_get(mp->transports, 0); /* test registered address of transport */ tor_addr_parse(&test_addr, "127.0.0.2"); tt_assert(tor_addr_eq(&test_addr, &transport->addr)); /* test registered port of transport */ tt_uint_op(transport->port, OP_EQ, 2999); /* test registered name of transport */ tt_str_op(transport->name,OP_EQ, "trebuchy"); reset_mp(mp); /* Include some arguments. Good ones. */ strlcpy(line,"SMETHOD trebuchet 127.0.0.1:9999 " "ARGS:counterweight=3,sling=snappy", sizeof(line)); tt_int_op(parse_smethod_line(line, mp), OP_EQ, 0); tt_int_op(1, OP_EQ, smartlist_len(mp->transports)); { const transport_t *transport_ = smartlist_get(mp->transports, 0); tt_assert(transport_); tt_str_op(transport_->name, OP_EQ, "trebuchet"); tt_int_op(transport_->port, OP_EQ, 9999); tt_str_op(fmt_addr(&transport_->addr), OP_EQ, "127.0.0.1"); tt_str_op(transport_->extra_info_args, OP_EQ, "counterweight=3,sling=snappy"); } reset_mp(mp); /* unsupported version */ strlcpy(line,"VERSION 666",sizeof(line)); tt_int_op(parse_version(line, mp), OP_LT, 0); /* incomplete VERSION */ strlcpy(line,"VERSION ",sizeof(line)); tt_int_op(parse_version(line, mp), OP_LT, 0); /* correct VERSION */ strlcpy(line,"VERSION 1",sizeof(line)); tt_int_op(parse_version(line, mp), OP_EQ, 0); done: reset_mp(mp); smartlist_free(mp->transports); tor_free(mp); } static void test_pt_get_transport_options(void *arg) { char **execve_args; smartlist_t *transport_list = smartlist_new(); managed_proxy_t *mp; or_options_t *options = get_options_mutable(); char *opt_str = NULL; config_line_t *cl = NULL; (void)arg; execve_args = tor_malloc(sizeof(char*)*2); execve_args[0] = tor_strdup("cheeseshop"); execve_args[1] = NULL; mp = managed_proxy_create(transport_list, execve_args, 1); tt_ptr_op(mp, OP_NE, NULL); opt_str = get_transport_options_for_server_proxy(mp); tt_ptr_op(opt_str, OP_EQ, NULL); smartlist_add_strdup(mp->transports_to_launch, "gruyere"); smartlist_add_strdup(mp->transports_to_launch, "roquefort"); smartlist_add_strdup(mp->transports_to_launch, "stnectaire"); tt_assert(options); cl = tor_malloc_zero(sizeof(config_line_t)); cl->value = tor_strdup("gruyere melty=10 hardness=se;ven"); options->ServerTransportOptions = cl; cl = tor_malloc_zero(sizeof(config_line_t)); cl->value = tor_strdup("stnectaire melty=4 hardness=three"); cl->next = options->ServerTransportOptions; options->ServerTransportOptions = cl; cl = tor_malloc_zero(sizeof(config_line_t)); cl->value = tor_strdup("pepperjack melty=12 hardness=five"); cl->next = options->ServerTransportOptions; options->ServerTransportOptions = cl; opt_str = get_transport_options_for_server_proxy(mp); tt_str_op(opt_str, OP_EQ, "gruyere:melty=10;gruyere:hardness=se\\;ven;" "stnectaire:melty=4;stnectaire:hardness=three"); done: tor_free(opt_str); config_free_lines(cl); managed_proxy_destroy(mp, 0); smartlist_free(transport_list); } static void test_pt_protocol(void *arg) { char line[200]; managed_proxy_t *mp = tor_malloc_zero(sizeof(managed_proxy_t)); (void)arg; mp->conf_state = PT_PROTO_LAUNCHED; mp->transports = smartlist_new(); mp->argv = tor_calloc(2, sizeof(char *)); mp->argv[0] = tor_strdup(""); /* various wrong protocol runs: */ strlcpy(line,"VERSION 1",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_ACCEPTING_METHODS); strlcpy(line,"VERSION 1",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_BROKEN); reset_mp(mp); strlcpy(line,"CMETHOD trebuchet socks5 127.0.0.1:1999",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_BROKEN); reset_mp(mp); /* correct protocol run: */ strlcpy(line,"VERSION 1",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_ACCEPTING_METHODS); strlcpy(line,"CMETHOD trebuchet socks5 127.0.0.1:1999",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_ACCEPTING_METHODS); strlcpy(line,"CMETHODS DONE",sizeof(line)); handle_proxy_line(line, mp); tt_assert(mp->conf_state == PT_PROTO_CONFIGURED); done: reset_mp(mp); smartlist_free(mp->transports); tor_free(mp->argv[0]); tor_free(mp->argv); tor_free(mp); } static void test_pt_get_extrainfo_string(void *arg) { managed_proxy_t *mp1 = NULL, *mp2 = NULL; char **argv1, **argv2; smartlist_t *t1 = smartlist_new(), *t2 = smartlist_new(); int r; char *s = NULL; (void) arg; argv1 = tor_malloc_zero(sizeof(char*)*3); argv1[0] = tor_strdup("ewige"); argv1[1] = tor_strdup("Blumenkraft"); argv1[2] = NULL; argv2 = tor_malloc_zero(sizeof(char*)*4); argv2[0] = tor_strdup("und"); argv2[1] = tor_strdup("ewige"); argv2[2] = tor_strdup("Schlangenkraft"); argv2[3] = NULL; mp1 = managed_proxy_create(t1, argv1, 1); mp2 = managed_proxy_create(t2, argv2, 1); r = parse_smethod_line("SMETHOD hagbard 127.0.0.1:5555", mp1); tt_int_op(r, OP_EQ, 0); r = parse_smethod_line("SMETHOD celine 127.0.0.1:1723 ARGS:card=no-enemy", mp2); tt_int_op(r, OP_EQ, 0); /* Force these proxies to look "completed" or they won't generate output. */ mp1->conf_state = mp2->conf_state = PT_PROTO_COMPLETED; s = pt_get_extra_info_descriptor_string(); tt_assert(s); tt_str_op(s, OP_EQ, "transport hagbard 127.0.0.1:5555\n" "transport celine 127.0.0.1:1723 card=no-enemy\n"); done: /* XXXX clean up better */ smartlist_free(t1); smartlist_free(t2); tor_free(s); } #ifdef _WIN32 #define STDIN_HANDLE HANDLE* #else #define STDIN_HANDLE int #endif static smartlist_t * tor_get_lines_from_handle_replacement(STDIN_HANDLE handle, enum stream_status *stream_status_out) { static int times_called = 0; smartlist_t *retval_sl = smartlist_new(); (void) handle; (void) stream_status_out; /* Generate some dummy CMETHOD lines the first 5 times. The 6th time, send 'CMETHODS DONE' to finish configuring the proxy. */ if (times_called++ != 5) { smartlist_add_asprintf(retval_sl, "SMETHOD mock%d 127.0.0.1:555%d", times_called, times_called); } else { smartlist_add_strdup(retval_sl, "SMETHODS DONE"); } return retval_sl; } /* NOP mock */ static void tor_process_handle_destroy_replacement(process_handle_t *process_handle, int also_terminate_process) { (void) process_handle; (void) also_terminate_process; } static or_state_t *dummy_state = NULL; static or_state_t * get_or_state_replacement(void) { return dummy_state; } static int controlevent_n = 0; static uint16_t controlevent_event = 0; static smartlist_t *controlevent_msgs = NULL; static void queue_control_event_string_replacement(uint16_t event, char *msg) { ++controlevent_n; controlevent_event = event; if (!controlevent_msgs) controlevent_msgs = smartlist_new(); smartlist_add(controlevent_msgs, msg); } /* Test the configure_proxy() function. */ static void test_pt_configure_proxy(void *arg) { int i, retval; managed_proxy_t *mp = NULL; (void) arg; dummy_state = tor_malloc_zero(sizeof(or_state_t)); MOCK(tor_get_lines_from_handle, tor_get_lines_from_handle_replacement); MOCK(tor_process_handle_destroy, tor_process_handle_destroy_replacement); MOCK(get_or_state, get_or_state_replacement); MOCK(queue_control_event_string, queue_control_event_string_replacement); control_testing_set_global_event_mask(EVENT_TRANSPORT_LAUNCHED); mp = tor_malloc_zero(sizeof(managed_proxy_t)); mp->conf_state = PT_PROTO_ACCEPTING_METHODS; mp->transports = smartlist_new(); mp->transports_to_launch = smartlist_new(); mp->process_handle = tor_malloc_zero(sizeof(process_handle_t)); mp->argv = tor_malloc_zero(sizeof(char*)*2); mp->argv[0] = tor_strdup(""); mp->is_server = 1; /* Test the return value of configure_proxy() by calling it some times while it is uninitialized and then finally finalizing its configuration. */ for (i = 0 ; i < 5 ; i++) { retval = configure_proxy(mp); /* retval should be zero because proxy hasn't finished configuring yet */ tt_int_op(retval, OP_EQ, 0); /* check the number of registered transports */ tt_assert(smartlist_len(mp->transports) == i+1); /* check that the mp is still waiting for transports */ tt_assert(mp->conf_state == PT_PROTO_ACCEPTING_METHODS); } /* this last configure_proxy() should finalize the proxy configuration. */ retval = configure_proxy(mp); /* retval should be 1 since the proxy finished configuring */ tt_int_op(retval, OP_EQ, 1); /* check the mp state */ tt_assert(mp->conf_state == PT_PROTO_COMPLETED); tt_int_op(controlevent_n, OP_EQ, 5); tt_int_op(controlevent_event, OP_EQ, EVENT_TRANSPORT_LAUNCHED); tt_int_op(smartlist_len(controlevent_msgs), OP_EQ, 5); smartlist_sort_strings(controlevent_msgs); tt_str_op(smartlist_get(controlevent_msgs, 0), OP_EQ, "650 TRANSPORT_LAUNCHED server mock1 127.0.0.1 5551\r\n"); tt_str_op(smartlist_get(controlevent_msgs, 1), OP_EQ, "650 TRANSPORT_LAUNCHED server mock2 127.0.0.1 5552\r\n"); tt_str_op(smartlist_get(controlevent_msgs, 2), OP_EQ, "650 TRANSPORT_LAUNCHED server mock3 127.0.0.1 5553\r\n"); tt_str_op(smartlist_get(controlevent_msgs, 3), OP_EQ, "650 TRANSPORT_LAUNCHED server mock4 127.0.0.1 5554\r\n"); tt_str_op(smartlist_get(controlevent_msgs, 4), OP_EQ, "650 TRANSPORT_LAUNCHED server mock5 127.0.0.1 5555\r\n"); { /* check that the transport info were saved properly in the tor state */ config_line_t *transport_in_state = NULL; smartlist_t *transport_info_sl = smartlist_new(); char *name_of_transport = NULL; char *bindaddr = NULL; /* Get the bindaddr for "mock1" and check it against the bindaddr that the mocked tor_get_lines_from_handle() generated. */ transport_in_state = get_transport_in_state_by_name("mock1"); tt_assert(transport_in_state); smartlist_split_string(transport_info_sl, transport_in_state->value, NULL, 0, 0); name_of_transport = smartlist_get(transport_info_sl, 0); bindaddr = smartlist_get(transport_info_sl, 1); tt_str_op(name_of_transport, OP_EQ, "mock1"); tt_str_op(bindaddr, OP_EQ, "127.0.0.1:5551"); SMARTLIST_FOREACH(transport_info_sl, char *, cp, tor_free(cp)); smartlist_free(transport_info_sl); } done: or_state_free(dummy_state); UNMOCK(tor_get_lines_from_handle); UNMOCK(tor_process_handle_destroy); UNMOCK(get_or_state); UNMOCK(queue_control_event_string); if (controlevent_msgs) { SMARTLIST_FOREACH(controlevent_msgs, char *, cp, tor_free(cp)); smartlist_free(controlevent_msgs); controlevent_msgs = NULL; } if (mp->transports) { SMARTLIST_FOREACH(mp->transports, transport_t *, t, transport_free(t)); smartlist_free(mp->transports); } smartlist_free(mp->transports_to_launch); tor_free(mp->process_handle); tor_free(mp->argv[0]); tor_free(mp->argv); tor_free(mp); } /* Test the get_pt_proxy_uri() function. */ static void test_get_pt_proxy_uri(void *arg) { or_options_t *options = get_options_mutable(); char *uri = NULL; int ret; (void) arg; /* Test with no proxy. */ uri = get_pt_proxy_uri(); tt_ptr_op(uri, OP_EQ, NULL); /* Test with a SOCKS4 proxy. */ options->Socks4Proxy = tor_strdup("192.0.2.1:1080"); ret = tor_addr_port_lookup(options->Socks4Proxy, &options->Socks4ProxyAddr, &options->Socks4ProxyPort); tt_int_op(ret, OP_EQ, 0); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "socks4a://192.0.2.1:1080"); tor_free(uri); tor_free(options->Socks4Proxy); /* Test with a SOCKS5 proxy, no username/password. */ options->Socks5Proxy = tor_strdup("192.0.2.1:1080"); ret = tor_addr_port_lookup(options->Socks5Proxy, &options->Socks5ProxyAddr, &options->Socks5ProxyPort); tt_int_op(ret, OP_EQ, 0); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "socks5://192.0.2.1:1080"); tor_free(uri); /* Test with a SOCKS5 proxy, with username/password. */ options->Socks5ProxyUsername = tor_strdup("hwest"); options->Socks5ProxyPassword = tor_strdup("r34n1m470r"); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "socks5://hwest:r34n1m470r@192.0.2.1:1080"); tor_free(uri); tor_free(options->Socks5Proxy); tor_free(options->Socks5ProxyUsername); tor_free(options->Socks5ProxyPassword); /* Test with a HTTPS proxy, no authenticator. */ options->HTTPSProxy = tor_strdup("192.0.2.1:80"); ret = tor_addr_port_lookup(options->HTTPSProxy, &options->HTTPSProxyAddr, &options->HTTPSProxyPort); tt_int_op(ret, OP_EQ, 0); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "http://192.0.2.1:80"); tor_free(uri); /* Test with a HTTPS proxy, with authenticator. */ options->HTTPSProxyAuthenticator = tor_strdup("hwest:r34n1m470r"); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "http://hwest:r34n1m470r@192.0.2.1:80"); tor_free(uri); tor_free(options->HTTPSProxy); tor_free(options->HTTPSProxyAuthenticator); /* Token nod to the fact that IPv6 exists. */ options->Socks4Proxy = tor_strdup("[2001:db8::1]:1080"); ret = tor_addr_port_lookup(options->Socks4Proxy, &options->Socks4ProxyAddr, &options->Socks4ProxyPort); tt_int_op(ret, OP_EQ, 0); uri = get_pt_proxy_uri(); tt_str_op(uri, OP_EQ, "socks4a://[2001:db8::1]:1080"); tor_free(uri); tor_free(options->Socks4Proxy); done: if (uri) tor_free(uri); } #define PT_LEGACY(name) \ { #name, test_pt_ ## name , 0, NULL, NULL } struct testcase_t pt_tests[] = { PT_LEGACY(parsing), PT_LEGACY(protocol), { "get_transport_options", test_pt_get_transport_options, TT_FORK, NULL, NULL }, { "get_extrainfo_string", test_pt_get_extrainfo_string, TT_FORK, NULL, NULL }, { "configure_proxy",test_pt_configure_proxy, TT_FORK, NULL, NULL }, { "get_pt_proxy_uri", test_get_pt_proxy_uri, TT_FORK, NULL, NULL }, END_OF_TESTCASES };