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- /* Copyright (c) 2016-2018, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- /**
- * \file test_hs_service.c
- * \brief Test hidden service functionality.
- */
- #define CIRCUITBUILD_PRIVATE
- #define CIRCUITLIST_PRIVATE
- #define CONFIG_PRIVATE
- #define CONNECTION_PRIVATE
- #define CRYPTO_PRIVATE
- #define HS_COMMON_PRIVATE
- #define HS_SERVICE_PRIVATE
- #define HS_INTROPOINT_PRIVATE
- #define HS_CIRCUIT_PRIVATE
- #define MAIN_PRIVATE
- #define NETWORKSTATUS_PRIVATE
- #define STATEFILE_PRIVATE
- #define TOR_CHANNEL_INTERNAL_
- #define HS_CLIENT_PRIVATE
- #define ROUTERPARSE_PRIVATE
- #include "test/test.h"
- #include "test/test_helpers.h"
- #include "test/log_test_helpers.h"
- #include "test/rend_test_helpers.h"
- #include "test/hs_test_helpers.h"
- #include "core/or/or.h"
- #include "app/config/config.h"
- #include "core/or/circuitbuild.h"
- #include "core/or/circuitlist.h"
- #include "core/or/circuituse.h"
- #include "lib/crypt_ops/crypto_rand.h"
- #include "feature/dirauth/dirvote.h"
- #include "feature/nodelist/networkstatus.h"
- #include "feature/nodelist/nodelist.h"
- #include "core/or/relay.h"
- #include "feature/nodelist/routerparse.h"
- #include "feature/hs/hs_common.h"
- #include "feature/hs/hs_config.h"
- #include "feature/hs/hs_ident.h"
- #include "feature/hs/hs_intropoint.h"
- #include "core/crypto/hs_ntor.h"
- #include "feature/hs/hs_circuit.h"
- #include "feature/hs/hs_circuitmap.h"
- #include "feature/hs/hs_service.h"
- #include "feature/hs/hs_client.h"
- #include "core/mainloop/main.h"
- #include "feature/rend/rendservice.h"
- #include "app/config/statefile.h"
- #include "feature/dirauth/shared_random_state.h"
- #include "feature/dircommon/voting_schedule.h"
- #include "core/or/cpath_build_state_st.h"
- #include "core/or/crypt_path_st.h"
- #include "feature/nodelist/networkstatus_st.h"
- #include "feature/nodelist/node_st.h"
- #include "core/or/origin_circuit_st.h"
- #include "app/config/or_state_st.h"
- #include "feature/nodelist/routerinfo_st.h"
- /* Trunnel */
- #include "trunnel/hs/cell_establish_intro.h"
- static networkstatus_t mock_ns;
- static networkstatus_t *
- mock_networkstatus_get_live_consensus(time_t now)
- {
- (void) now;
- return &mock_ns;
- }
- static or_state_t *dummy_state = NULL;
- /* Mock function to get fake or state (used for rev counters) */
- static or_state_t *
- get_or_state_replacement(void)
- {
- return dummy_state;
- }
- /* Mock function because we are not trying to test the close circuit that does
- * an awful lot of checks on the circuit object. */
- static void
- mock_circuit_mark_for_close(circuit_t *circ, int reason, int line,
- const char *file)
- {
- (void) circ;
- (void) reason;
- (void) line;
- (void) file;
- return;
- }
- static int
- mock_relay_send_command_from_edge(streamid_t stream_id, circuit_t *circ,
- uint8_t relay_command, const char *payload,
- size_t payload_len,
- crypt_path_t *cpath_layer,
- const char *filename, int lineno)
- {
- (void) stream_id;
- (void) circ;
- (void) relay_command;
- (void) payload;
- (void) payload_len;
- (void) cpath_layer;
- (void) filename;
- (void) lineno;
- return 0;
- }
- /* Helper: from a set of options in conf, configure a service which will add
- * it to the staging list of the HS subsytem. */
- static int
- helper_config_service(const char *conf)
- {
- int ret = 0;
- or_options_t *options = NULL;
- tt_assert(conf);
- options = helper_parse_options(conf);
- tt_assert(options);
- ret = hs_config_service_all(options, 0);
- done:
- or_options_free(options);
- return ret;
- }
- /* Test: Ensure that setting up rendezvous circuits works correctly. */
- static void
- test_e2e_rend_circuit_setup(void *arg)
- {
- ed25519_public_key_t service_pk;
- origin_circuit_t *or_circ;
- int retval;
- /** In this test we create a v3 prop224 service-side rendezvous circuit.
- * We simulate an HS ntor key exchange with a client, and check that
- * the circuit was setup correctly and is ready to accept rendezvous data */
- (void) arg;
- /* Now make dummy circuit */
- {
- or_circ = origin_circuit_new();
- or_circ->base_.purpose = CIRCUIT_PURPOSE_S_CONNECT_REND;
- or_circ->build_state = tor_malloc_zero(sizeof(cpath_build_state_t));
- or_circ->build_state->is_internal = 1;
- /* prop224: Setup hs conn identifier on the stream */
- ed25519_secret_key_t sk;
- tt_int_op(0, OP_EQ, ed25519_secret_key_generate(&sk, 0));
- tt_int_op(0, OP_EQ, ed25519_public_key_generate(&service_pk, &sk));
- or_circ->hs_ident = hs_ident_circuit_new(&service_pk,
- HS_IDENT_CIRCUIT_RENDEZVOUS);
- TO_CIRCUIT(or_circ)->state = CIRCUIT_STATE_OPEN;
- }
- /* Check number of hops */
- retval = cpath_get_n_hops(&or_circ->cpath);
- tt_int_op(retval, OP_EQ, 0);
- /* Setup the circuit: do the ntor key exchange */
- {
- uint8_t ntor_key_seed[DIGEST256_LEN] = {2};
- retval = hs_circuit_setup_e2e_rend_circ(or_circ,
- ntor_key_seed, sizeof(ntor_key_seed),
- 1);
- tt_int_op(retval, OP_EQ, 0);
- }
- /* See that a hop was added to the circuit's cpath */
- retval = cpath_get_n_hops(&or_circ->cpath);
- tt_int_op(retval, OP_EQ, 1);
- /* Check the digest algo */
- tt_int_op(crypto_digest_get_algorithm(or_circ->cpath->crypto.f_digest),
- OP_EQ, DIGEST_SHA3_256);
- tt_int_op(crypto_digest_get_algorithm(or_circ->cpath->crypto.b_digest),
- OP_EQ, DIGEST_SHA3_256);
- tt_assert(or_circ->cpath->crypto.f_crypto);
- tt_assert(or_circ->cpath->crypto.b_crypto);
- /* Ensure that circ purpose was changed */
- tt_int_op(or_circ->base_.purpose, OP_EQ, CIRCUIT_PURPOSE_S_REND_JOINED);
- done:
- circuit_free_(TO_CIRCUIT(or_circ));
- }
- /* Helper: Return a newly allocated and initialized origin circuit with
- * purpose and flags. A default HS identifier is set to an ed25519
- * authentication key for introduction point. */
- static origin_circuit_t *
- helper_create_origin_circuit(int purpose, int flags)
- {
- origin_circuit_t *circ = NULL;
- circ = origin_circuit_init(purpose, flags);
- tor_assert(circ);
- circ->cpath = tor_malloc_zero(sizeof(crypt_path_t));
- circ->cpath->magic = CRYPT_PATH_MAGIC;
- circ->cpath->state = CPATH_STATE_OPEN;
- circ->cpath->package_window = circuit_initial_package_window();
- circ->cpath->deliver_window = CIRCWINDOW_START;
- circ->cpath->prev = circ->cpath;
- /* Random nonce. */
- crypto_rand(circ->cpath->prev->rend_circ_nonce, DIGEST_LEN);
- /* Create a default HS identifier. */
- circ->hs_ident = tor_malloc_zero(sizeof(hs_ident_circuit_t));
- return circ;
- }
- /* Helper: Return a newly allocated service object with the identity keypair
- * sets and the current descriptor. Then register it to the global map.
- * Caller should us hs_free_all() to free this service or remove it from the
- * global map before freeing. */
- static hs_service_t *
- helper_create_service(void)
- {
- /* Set a service for this circuit. */
- hs_service_t *service = hs_service_new(get_options());
- tor_assert(service);
- service->config.version = HS_VERSION_THREE;
- ed25519_secret_key_generate(&service->keys.identity_sk, 0);
- ed25519_public_key_generate(&service->keys.identity_pk,
- &service->keys.identity_sk);
- service->desc_current = service_descriptor_new();
- tt_assert(service->desc_current);
- /* Register service to global map. */
- int ret = register_service(get_hs_service_map(), service);
- tt_int_op(ret, OP_EQ, 0);
- done:
- return service;
- }
- /* Helper: Return a newly allocated service intro point with two link
- * specifiers, one IPv4 and one legacy ID set to As. */
- static hs_service_intro_point_t *
- helper_create_service_ip(void)
- {
- hs_desc_link_specifier_t *ls;
- hs_service_intro_point_t *ip = service_intro_point_new(NULL, 0);
- tor_assert(ip);
- /* Add a first unused link specifier. */
- ls = tor_malloc_zero(sizeof(*ls));
- ls->type = LS_IPV4;
- smartlist_add(ip->base.link_specifiers, ls);
- /* Add a second link specifier used by a test. */
- ls = tor_malloc_zero(sizeof(*ls));
- ls->type = LS_LEGACY_ID;
- memset(ls->u.legacy_id, 'A', sizeof(ls->u.legacy_id));
- smartlist_add(ip->base.link_specifiers, ls);
- return ip;
- }
- static void
- test_load_keys(void *arg)
- {
- int ret;
- char *conf = NULL;
- char *hsdir_v2 = tor_strdup(get_fname("hs2"));
- char *hsdir_v3 = tor_strdup(get_fname("hs3"));
- char addr[HS_SERVICE_ADDR_LEN_BASE32 + 1];
- (void) arg;
- /* We'll register two services, a v2 and a v3, then we'll load keys and
- * validate that both are in a correct state. */
- hs_init();
- #define conf_fmt \
- "HiddenServiceDir %s\n" \
- "HiddenServiceVersion %d\n" \
- "HiddenServicePort 65535\n"
- /* v2 service. */
- tor_asprintf(&conf, conf_fmt, hsdir_v2, HS_VERSION_TWO);
- ret = helper_config_service(conf);
- tor_free(conf);
- tt_int_op(ret, OP_EQ, 0);
- /* This one should now be registered into the v2 list. */
- tt_int_op(get_hs_service_staging_list_size(), OP_EQ, 0);
- tt_int_op(rend_num_services(), OP_EQ, 1);
- /* v3 service. */
- tor_asprintf(&conf, conf_fmt, hsdir_v3, HS_VERSION_THREE);
- ret = helper_config_service(conf);
- tor_free(conf);
- tt_int_op(ret, OP_EQ, 0);
- /* It's in staging? */
- tt_int_op(get_hs_service_staging_list_size(), OP_EQ, 1);
- /* Load the keys for these. After that, the v3 service should be registered
- * in the global map. */
- hs_service_load_all_keys();
- tt_int_op(get_hs_service_map_size(), OP_EQ, 1);
- hs_service_t *s = get_first_service();
- tt_assert(s);
- /* Ok we have the service object. Validate few things. */
- tt_assert(!tor_mem_is_zero(s->onion_address, sizeof(s->onion_address)));
- tt_int_op(hs_address_is_valid(s->onion_address), OP_EQ, 1);
- tt_assert(!tor_mem_is_zero((char *) s->keys.identity_sk.seckey,
- ED25519_SECKEY_LEN));
- tt_assert(!tor_mem_is_zero((char *) s->keys.identity_pk.pubkey,
- ED25519_PUBKEY_LEN));
- /* Check onion address from identity key. */
- hs_build_address(&s->keys.identity_pk, s->config.version, addr);
- tt_int_op(hs_address_is_valid(addr), OP_EQ, 1);
- tt_str_op(addr, OP_EQ, s->onion_address);
- done:
- tor_free(hsdir_v2);
- tor_free(hsdir_v3);
- hs_free_all();
- }
- static void
- test_access_service(void *arg)
- {
- int ret;
- char *conf = NULL;
- char *hsdir_v3 = tor_strdup(get_fname("hs3"));
- hs_service_ht *global_map;
- hs_service_t *s = NULL;
- (void) arg;
- /* We'll register two services, a v2 and a v3, then we'll load keys and
- * validate that both are in a correct state. */
- hs_init();
- #define conf_fmt \
- "HiddenServiceDir %s\n" \
- "HiddenServiceVersion %d\n" \
- "HiddenServicePort 65535\n"
- /* v3 service. */
- tor_asprintf(&conf, conf_fmt, hsdir_v3, HS_VERSION_THREE);
- ret = helper_config_service(conf);
- tor_free(conf);
- tt_int_op(ret, OP_EQ, 0);
- /* It's in staging? */
- tt_int_op(get_hs_service_staging_list_size(), OP_EQ, 1);
- /* Load the keys for these. After that, the v3 service should be registered
- * in the global map. */
- hs_service_load_all_keys();
- tt_int_op(get_hs_service_map_size(), OP_EQ, 1);
- s = get_first_service();
- tt_assert(s);
- global_map = get_hs_service_map();
- tt_assert(global_map);
- /* From here, we'll try the service accessors. */
- hs_service_t *query = find_service(global_map, &s->keys.identity_pk);
- tt_assert(query);
- tt_mem_op(query, OP_EQ, s, sizeof(hs_service_t));
- /* Remove service, check if it actually works and then put it back. */
- remove_service(global_map, s);
- tt_int_op(get_hs_service_map_size(), OP_EQ, 0);
- query = find_service(global_map, &s->keys.identity_pk);
- tt_ptr_op(query, OP_EQ, NULL);
- /* Register back the service in the map. */
- ret = register_service(global_map, s);
- tt_int_op(ret, OP_EQ, 0);
- tt_int_op(get_hs_service_map_size(), OP_EQ, 1);
- /* Twice should fail. */
- ret = register_service(global_map, s);
- tt_int_op(ret, OP_EQ, -1);
- /* Remove service from map so we don't double free on cleanup. */
- remove_service(global_map, s);
- tt_int_op(get_hs_service_map_size(), OP_EQ, 0);
- query = find_service(global_map, &s->keys.identity_pk);
- tt_ptr_op(query, OP_EQ, NULL);
- /* Let's try to remove twice for fun. */
- setup_full_capture_of_logs(LOG_WARN);
- remove_service(global_map, s);
- expect_log_msg_containing("Could not find service in the global map");
- teardown_capture_of_logs();
- done:
- hs_service_free(s);
- tor_free(hsdir_v3);
- hs_free_all();
- }
- /** Test that we can create intro point objects, index them and find them */
- static void
- test_service_intro_point(void *arg)
- {
- hs_service_t *service = NULL;
- hs_service_intro_point_t *ip = NULL;
- (void) arg;
- /* Test simple creation of an object. */
- {
- time_t now = time(NULL);
- ip = helper_create_service_ip();
- tt_assert(ip);
- /* Make sure the authentication keypair is not zeroes. */
- tt_int_op(tor_mem_is_zero((const char *) &ip->auth_key_kp,
- sizeof(ed25519_keypair_t)), OP_EQ, 0);
- /* The introduce2_max MUST be in that range. */
- tt_u64_op(ip->introduce2_max, OP_GE,
- INTRO_POINT_MIN_LIFETIME_INTRODUCTIONS);
- tt_u64_op(ip->introduce2_max, OP_LE,
- INTRO_POINT_MAX_LIFETIME_INTRODUCTIONS);
- /* Time to expire MUST also be in that range. We subtract 500 seconds
- * because there could be a gap between setting now and the time taken in
- * service_intro_point_new. On ARM and other older CPUs, it can be
- * surprisingly slow... */
- tt_u64_op(ip->time_to_expire, OP_GE,
- now + INTRO_POINT_LIFETIME_MIN_SECONDS - 500);
- /* We add 500 seconds, because this time we're testing against the
- * maximum allowed time. */
- tt_u64_op(ip->time_to_expire, OP_LE,
- now + INTRO_POINT_LIFETIME_MAX_SECONDS + 500);
- tt_assert(ip->replay_cache);
- tt_assert(ip->base.link_specifiers);
- /* By default, this is NOT a legacy object. */
- tt_int_op(ip->base.is_only_legacy, OP_EQ, 0);
- }
- /* Test functions that uses a service intropoints map with that previously
- * created object (non legacy). */
- {
- ed25519_public_key_t garbage = { {0} };
- hs_service_intro_point_t *query;
- service = hs_service_new(get_options());
- tt_assert(service);
- service->desc_current = service_descriptor_new();
- tt_assert(service->desc_current);
- /* Add intropoint to descriptor map. */
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- query = service_intro_point_find(service, &ip->auth_key_kp.pubkey);
- tt_mem_op(query, OP_EQ, ip, sizeof(hs_service_intro_point_t));
- query = service_intro_point_find(service, &garbage);
- tt_ptr_op(query, OP_EQ, NULL);
- /* While at it, can I find the descriptor with the intro point? */
- hs_service_descriptor_t *desc_lookup =
- service_desc_find_by_intro(service, ip);
- tt_mem_op(service->desc_current, OP_EQ, desc_lookup,
- sizeof(hs_service_descriptor_t));
- /* Remove object from service descriptor and make sure it is out. */
- service_intro_point_remove(service, ip);
- query = service_intro_point_find(service, &ip->auth_key_kp.pubkey);
- tt_ptr_op(query, OP_EQ, NULL);
- }
- done:
- /* If the test succeed, this object is no longer referenced in the service
- * so we can free it without use after free. Else, it might explode because
- * it's still in the service descriptor map. */
- service_intro_point_free(ip);
- hs_service_free(service);
- }
- static node_t mock_node;
- static const node_t *
- mock_node_get_by_id(const char *digest)
- {
- (void) digest;
- memset(mock_node.identity, 'A', DIGEST_LEN);
- /* Only return the matchin identity of As */
- if (!tor_memcmp(mock_node.identity, digest, DIGEST_LEN)) {
- return &mock_node;
- }
- return NULL;
- }
- static void
- test_helper_functions(void *arg)
- {
- int ret;
- hs_service_t *service = NULL;
- hs_service_intro_point_t *ip = NULL;
- hs_ident_circuit_t ident;
- (void) arg;
- MOCK(node_get_by_id, mock_node_get_by_id);
- hs_service_init();
- service = helper_create_service();
- ip = helper_create_service_ip();
- /* Immediately add the intro point to the service so the free service at the
- * end cleans it as well. */
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* Setup the circuit identifier. */
- ed25519_pubkey_copy(&ident.intro_auth_pk, &ip->auth_key_kp.pubkey);
- ed25519_pubkey_copy(&ident.identity_pk, &service->keys.identity_pk);
- /* Testing get_objects_from_ident(). */
- {
- hs_service_t *s_lookup = NULL;
- hs_service_intro_point_t *ip_lookup = NULL;
- hs_service_descriptor_t *desc_lookup = NULL;
- get_objects_from_ident(&ident, &s_lookup, &ip_lookup, &desc_lookup);
- tt_mem_op(s_lookup, OP_EQ, service, sizeof(hs_service_t));
- tt_mem_op(ip_lookup, OP_EQ, ip, sizeof(hs_service_intro_point_t));
- tt_mem_op(desc_lookup, OP_EQ, service->desc_current,
- sizeof(hs_service_descriptor_t));
- /* Reset */
- s_lookup = NULL; ip_lookup = NULL; desc_lookup = NULL;
- /* NULL parameter should work. */
- get_objects_from_ident(&ident, NULL, &ip_lookup, &desc_lookup);
- tt_mem_op(ip_lookup, OP_EQ, ip, sizeof(hs_service_intro_point_t));
- tt_mem_op(desc_lookup, OP_EQ, service->desc_current,
- sizeof(hs_service_descriptor_t));
- /* Reset. */
- s_lookup = NULL; ip_lookup = NULL; desc_lookup = NULL;
- /* Break the ident and we should find nothing. */
- memset(&ident, 0, sizeof(ident));
- get_objects_from_ident(&ident, &s_lookup, &ip_lookup, &desc_lookup);
- tt_ptr_op(s_lookup, OP_EQ, NULL);
- tt_ptr_op(ip_lookup, OP_EQ, NULL);
- tt_ptr_op(desc_lookup, OP_EQ, NULL);
- }
- /* Testing get_node_from_intro_point() */
- {
- const node_t *node = get_node_from_intro_point(ip);
- tt_ptr_op(node, OP_EQ, &mock_node);
- SMARTLIST_FOREACH_BEGIN(ip->base.link_specifiers,
- hs_desc_link_specifier_t *, ls) {
- if (ls->type == LS_LEGACY_ID) {
- /* Change legacy id in link specifier which is not the mock node. */
- memset(ls->u.legacy_id, 'B', sizeof(ls->u.legacy_id));
- }
- } SMARTLIST_FOREACH_END(ls);
- node = get_node_from_intro_point(ip);
- tt_ptr_op(node, OP_EQ, NULL);
- }
- /* Testing can_service_launch_intro_circuit() */
- {
- time_t now = time(NULL);
- /* Put the start of the retry period back in time, we should be allowed.
- * to launch intro circuit. */
- service->state.num_intro_circ_launched = 2;
- service->state.intro_circ_retry_started_time =
- (now - INTRO_CIRC_RETRY_PERIOD - 1);
- ret = can_service_launch_intro_circuit(service, now);
- tt_int_op(ret, OP_EQ, 1);
- tt_u64_op(service->state.intro_circ_retry_started_time, OP_EQ, now);
- tt_u64_op(service->state.num_intro_circ_launched, OP_EQ, 0);
- /* Call it again, we should still be allowed because we are under
- * MAX_INTRO_CIRCS_PER_PERIOD which been set to 0 previously. */
- ret = can_service_launch_intro_circuit(service, now);
- tt_int_op(ret, OP_EQ, 1);
- tt_u64_op(service->state.intro_circ_retry_started_time, OP_EQ, now);
- tt_u64_op(service->state.num_intro_circ_launched, OP_EQ, 0);
- /* Too many intro circuit launched means we are not allowed. */
- service->state.num_intro_circ_launched = 20;
- ret = can_service_launch_intro_circuit(service, now);
- tt_int_op(ret, OP_EQ, 0);
- }
- /* Testing intro_point_should_expire(). */
- {
- time_t now = time(NULL);
- /* Just some basic test of the current state. */
- tt_u64_op(ip->introduce2_max, OP_GE,
- INTRO_POINT_MIN_LIFETIME_INTRODUCTIONS);
- tt_u64_op(ip->introduce2_max, OP_LE,
- INTRO_POINT_MAX_LIFETIME_INTRODUCTIONS);
- tt_u64_op(ip->time_to_expire, OP_GE,
- now + INTRO_POINT_LIFETIME_MIN_SECONDS);
- tt_u64_op(ip->time_to_expire, OP_LE,
- now + INTRO_POINT_LIFETIME_MAX_SECONDS);
- /* This newly created IP from above shouldn't expire now. */
- ret = intro_point_should_expire(ip, now);
- tt_int_op(ret, OP_EQ, 0);
- /* Maximum number of INTRODUCE2 cell reached, it should expire. */
- ip->introduce2_count = INTRO_POINT_MAX_LIFETIME_INTRODUCTIONS + 1;
- ret = intro_point_should_expire(ip, now);
- tt_int_op(ret, OP_EQ, 1);
- ip->introduce2_count = 0;
- /* It should expire if time to expire has been reached. */
- ip->time_to_expire = now - 1000;
- ret = intro_point_should_expire(ip, now);
- tt_int_op(ret, OP_EQ, 1);
- }
- done:
- /* This will free the service and all objects associated to it. */
- hs_service_free_all();
- UNMOCK(node_get_by_id);
- }
- /** Test that we do the right operations when an intro circuit opens */
- static void
- test_intro_circuit_opened(void *arg)
- {
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- hs_service_t *service;
- origin_circuit_t *circ = NULL;
- (void) arg;
- hs_init();
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- MOCK(relay_send_command_from_edge_, mock_relay_send_command_from_edge);
- circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_ESTABLISH_INTRO,
- flags);
- /* No service associated with this circuit. */
- setup_full_capture_of_logs(LOG_WARN);
- hs_service_circuit_has_opened(circ);
- expect_log_msg_containing("Unknown service identity key");
- teardown_capture_of_logs();
- /* Set a service for this circuit. */
- {
- service = helper_create_service();
- ed25519_pubkey_copy(&circ->hs_ident->identity_pk,
- &service->keys.identity_pk);
- /* No intro point associated with this circuit. */
- setup_full_capture_of_logs(LOG_WARN);
- hs_service_circuit_has_opened(circ);
- expect_log_msg_containing("Unknown introduction point auth key");
- teardown_capture_of_logs();
- }
- /* Set an IP object now for this circuit. */
- {
- hs_service_intro_point_t *ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* Update ident to contain the intro point auth key. */
- ed25519_pubkey_copy(&circ->hs_ident->intro_auth_pk,
- &ip->auth_key_kp.pubkey);
- }
- /* This one should go all the way. */
- setup_full_capture_of_logs(LOG_INFO);
- hs_service_circuit_has_opened(circ);
- expect_log_msg_containing("Introduction circuit 0 established for service");
- teardown_capture_of_logs();
- done:
- circuit_free_(TO_CIRCUIT(circ));
- hs_free_all();
- UNMOCK(circuit_mark_for_close_);
- UNMOCK(relay_send_command_from_edge_);
- }
- /** Test the operations we do on a circuit after we learn that we successfully
- * established an intro point on it */
- static void
- test_intro_established(void *arg)
- {
- int ret;
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- uint8_t payload[RELAY_PAYLOAD_SIZE] = {0};
- origin_circuit_t *circ = NULL;
- hs_service_t *service;
- hs_service_intro_point_t *ip = NULL;
- (void) arg;
- hs_init();
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_ESTABLISH_INTRO,
- flags);
- tt_assert(circ);
- /* Test a wrong purpose. */
- TO_CIRCUIT(circ)->purpose = CIRCUIT_PURPOSE_S_INTRO;
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_intro_established(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Received an INTRO_ESTABLISHED cell on a "
- "non introduction circuit of purpose");
- teardown_capture_of_logs();
- /* Back to normal. */
- TO_CIRCUIT(circ)->purpose = CIRCUIT_PURPOSE_S_ESTABLISH_INTRO;
- /* No service associated to it. */
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_intro_established(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Unknown service identity key");
- teardown_capture_of_logs();
- /* Set a service for this circuit. */
- service = helper_create_service();
- ed25519_pubkey_copy(&circ->hs_ident->identity_pk,
- &service->keys.identity_pk);
- /* No introduction point associated to it. */
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_intro_established(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Introduction circuit established without an "
- "intro point object on circuit");
- teardown_capture_of_logs();
- /* Set an IP object now for this circuit. */
- {
- ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* Update ident to contain the intro point auth key. */
- ed25519_pubkey_copy(&circ->hs_ident->intro_auth_pk,
- &ip->auth_key_kp.pubkey);
- }
- /* Send an empty payload. INTRO_ESTABLISHED cells are basically zeroes. */
- ret = hs_service_receive_intro_established(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, 0);
- tt_u64_op(ip->circuit_established, OP_EQ, 1);
- tt_int_op(TO_CIRCUIT(circ)->purpose, OP_EQ, CIRCUIT_PURPOSE_S_INTRO);
- done:
- if (circ)
- circuit_free_(TO_CIRCUIT(circ));
- hs_free_all();
- UNMOCK(circuit_mark_for_close_);
- }
- /** Check the operations we do on a rendezvous circuit after we learn it's
- * open */
- static void
- test_rdv_circuit_opened(void *arg)
- {
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- origin_circuit_t *circ = NULL;
- hs_service_t *service;
- (void) arg;
- hs_init();
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- MOCK(relay_send_command_from_edge_, mock_relay_send_command_from_edge);
- circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_CONNECT_REND, flags);
- crypto_rand((char *) circ->hs_ident->rendezvous_cookie, REND_COOKIE_LEN);
- crypto_rand((char *) circ->hs_ident->rendezvous_handshake_info,
- sizeof(circ->hs_ident->rendezvous_handshake_info));
- /* No service associated with this circuit. */
- setup_full_capture_of_logs(LOG_WARN);
- hs_service_circuit_has_opened(circ);
- expect_log_msg_containing("Unknown service identity key");
- teardown_capture_of_logs();
- /* This should be set to a non zero timestamp. */
- tt_u64_op(TO_CIRCUIT(circ)->timestamp_dirty, OP_NE, 0);
- /* Set a service for this circuit. */
- service = helper_create_service();
- ed25519_pubkey_copy(&circ->hs_ident->identity_pk,
- &service->keys.identity_pk);
- /* Should be all good. */
- hs_service_circuit_has_opened(circ);
- tt_int_op(TO_CIRCUIT(circ)->purpose, OP_EQ, CIRCUIT_PURPOSE_S_REND_JOINED);
- done:
- circuit_free_(TO_CIRCUIT(circ));
- hs_free_all();
- UNMOCK(circuit_mark_for_close_);
- UNMOCK(relay_send_command_from_edge_);
- }
- static void
- mock_assert_circuit_ok(const circuit_t *c)
- {
- (void) c;
- return;
- }
- /** Test for the general mechanism for closing intro circs.
- * Also a way to identify that #23603 has been fixed. */
- static void
- test_closing_intro_circs(void *arg)
- {
- hs_service_t *service = NULL;
- hs_service_intro_point_t *ip = NULL, *entry = NULL;
- origin_circuit_t *intro_circ = NULL, *tmp_circ;
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- (void) arg;
- MOCK(assert_circuit_ok, mock_assert_circuit_ok);
- hs_init();
- /* Initialize service */
- service = helper_create_service();
- /* Initialize intro point */
- ip = helper_create_service_ip();
- tt_assert(ip);
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* Initialize intro circuit */
- intro_circ = origin_circuit_init(CIRCUIT_PURPOSE_S_ESTABLISH_INTRO, flags);
- intro_circ->hs_ident = hs_ident_circuit_new(&service->keys.identity_pk,
- HS_IDENT_CIRCUIT_INTRO);
- /* Register circuit in the circuitmap . */
- hs_circuitmap_register_intro_circ_v3_service_side(intro_circ,
- &ip->auth_key_kp.pubkey);
- tmp_circ =
- hs_circuitmap_get_intro_circ_v3_service_side(&ip->auth_key_kp.pubkey);
- tt_ptr_op(tmp_circ, OP_EQ, intro_circ);
- /* Pretend that intro point has failed too much */
- ip->circuit_retries = MAX_INTRO_POINT_CIRCUIT_RETRIES+1;
- /* Now pretend we are freeing this intro circuit. We want to see that our
- * destructor is not gonna kill our intro point structure since that's the
- * job of the cleanup routine. */
- circuit_free_(TO_CIRCUIT(intro_circ));
- intro_circ = NULL;
- entry = service_intro_point_find(service, &ip->auth_key_kp.pubkey);
- tt_assert(entry);
- /* The free should also remove the circuit from the circuitmap. */
- tmp_circ =
- hs_circuitmap_get_intro_circ_v3_service_side(&ip->auth_key_kp.pubkey);
- tt_assert(!tmp_circ);
- /* Now pretend that a new intro point circ was launched and opened. Check
- * that the intro point will be established correctly. */
- intro_circ = origin_circuit_init(CIRCUIT_PURPOSE_S_ESTABLISH_INTRO, flags);
- intro_circ->hs_ident = hs_ident_circuit_new(&service->keys.identity_pk,
- HS_IDENT_CIRCUIT_INTRO);
- ed25519_pubkey_copy(&intro_circ->hs_ident->intro_auth_pk,
- &ip->auth_key_kp.pubkey);
- /* Register circuit in the circuitmap . */
- hs_circuitmap_register_intro_circ_v3_service_side(intro_circ,
- &ip->auth_key_kp.pubkey);
- tmp_circ =
- hs_circuitmap_get_intro_circ_v3_service_side(&ip->auth_key_kp.pubkey);
- tt_ptr_op(tmp_circ, OP_EQ, intro_circ);
- tt_int_op(TO_CIRCUIT(intro_circ)->marked_for_close, OP_EQ, 0);
- circuit_mark_for_close(TO_CIRCUIT(intro_circ), END_CIRC_REASON_INTERNAL);
- tt_int_op(TO_CIRCUIT(intro_circ)->marked_for_close, OP_NE, 0);
- /* At this point, we should not be able to find it in the circuitmap. */
- tmp_circ =
- hs_circuitmap_get_intro_circ_v3_service_side(&ip->auth_key_kp.pubkey);
- tt_assert(!tmp_circ);
- done:
- if (intro_circ) {
- circuit_free_(TO_CIRCUIT(intro_circ));
- }
- /* Frees the service object. */
- hs_free_all();
- UNMOCK(assert_circuit_ok);
- }
- /** Test sending and receiving introduce2 cells */
- static void
- test_introduce2(void *arg)
- {
- int ret;
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- uint8_t payload[RELAY_PAYLOAD_SIZE] = {0};
- origin_circuit_t *circ = NULL;
- hs_service_t *service;
- hs_service_intro_point_t *ip = NULL;
- (void) arg;
- hs_init();
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- MOCK(get_or_state,
- get_or_state_replacement);
- dummy_state = tor_malloc_zero(sizeof(or_state_t));
- circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_INTRO, flags);
- tt_assert(circ);
- /* Test a wrong purpose. */
- TO_CIRCUIT(circ)->purpose = CIRCUIT_PURPOSE_S_ESTABLISH_INTRO;
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_introduce2(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Received an INTRODUCE2 cell on a "
- "non introduction circuit of purpose");
- teardown_capture_of_logs();
- /* Back to normal. */
- TO_CIRCUIT(circ)->purpose = CIRCUIT_PURPOSE_S_INTRO;
- /* No service associated to it. */
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_introduce2(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Unknown service identity key");
- teardown_capture_of_logs();
- /* Set a service for this circuit. */
- service = helper_create_service();
- ed25519_pubkey_copy(&circ->hs_ident->identity_pk,
- &service->keys.identity_pk);
- /* No introduction point associated to it. */
- setup_full_capture_of_logs(LOG_WARN);
- ret = hs_service_receive_introduce2(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- expect_log_msg_containing("Unknown introduction auth key when handling "
- "an INTRODUCE2 cell on circuit");
- teardown_capture_of_logs();
- /* Set an IP object now for this circuit. */
- {
- ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* Update ident to contain the intro point auth key. */
- ed25519_pubkey_copy(&circ->hs_ident->intro_auth_pk,
- &ip->auth_key_kp.pubkey);
- }
- /* This will fail because receiving an INTRODUCE2 cell implies a valid cell
- * and then launching circuits so let's not do that and instead test that
- * behaviour differently. */
- ret = hs_service_receive_introduce2(circ, payload, sizeof(payload));
- tt_int_op(ret, OP_EQ, -1);
- tt_u64_op(ip->introduce2_count, OP_EQ, 0);
- done:
- or_state_free(dummy_state);
- dummy_state = NULL;
- if (circ)
- circuit_free_(TO_CIRCUIT(circ));
- hs_free_all();
- UNMOCK(circuit_mark_for_close_);
- }
- /** Test basic hidden service housekeeping operations (maintaining intro
- * points, etc) */
- static void
- test_service_event(void *arg)
- {
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- time_t now = time(NULL);
- hs_service_t *service;
- origin_circuit_t *circ = NULL;
- (void) arg;
- hs_init();
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_INTRO, flags);
- /* Set a service for this circuit. */
- service = helper_create_service();
- ed25519_pubkey_copy(&circ->hs_ident->identity_pk,
- &service->keys.identity_pk);
- /* Currently this consists of cleaning invalid intro points. So adding IPs
- * here that should get cleaned up. */
- {
- hs_service_intro_point_t *ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- /* This run will remove the IP because we have no circuits nor node_t
- * associated with it. */
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 0);
- /* We'll trigger a removal because we've reached our maximum amount of
- * times we should retry a circuit. For this, we need to have a node_t
- * that matches the identity of this IP. */
- routerinfo_t ri;
- memset(&ri, 0, sizeof(ri));
- ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- memset(ri.cache_info.identity_digest, 'A', DIGEST_LEN);
- /* This triggers a node_t creation. */
- tt_assert(nodelist_set_routerinfo(&ri, NULL));
- ip->circuit_retries = MAX_INTRO_POINT_CIRCUIT_RETRIES + 1;
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 0);
- /* No removal but no circuit so this means the IP object will stay in the
- * descriptor map so we can retry it. */
- ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- ip->circuit_established = 1; /* We'll test that, it MUST be 0 after. */
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 1);
- /* Remove the IP object at once for the next test. */
- ip->circuit_retries = MAX_INTRO_POINT_CIRCUIT_RETRIES + 1;
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 0);
- /* Now, we'll create an IP with a registered circuit. The IP object
- * shouldn't go away. */
- ip = helper_create_service_ip();
- service_intro_point_add(service->desc_current->intro_points.map, ip);
- ed25519_pubkey_copy(&circ->hs_ident->intro_auth_pk,
- &ip->auth_key_kp.pubkey);
- hs_circuitmap_register_intro_circ_v3_service_side(
- circ, &ip->auth_key_kp.pubkey);
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 1);
- /* We'll mangle the IP object to expire. */
- ip->time_to_expire = now;
- run_housekeeping_event(now);
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 0);
- }
- done:
- hs_circuitmap_remove_circuit(TO_CIRCUIT(circ));
- circuit_free_(TO_CIRCUIT(circ));
- hs_free_all();
- UNMOCK(circuit_mark_for_close_);
- }
- /** Test that we rotate descriptors correctly. */
- static void
- test_rotate_descriptors(void *arg)
- {
- int ret;
- time_t next_rotation_time, now = time(NULL);
- hs_service_t *service;
- hs_service_descriptor_t *desc_next;
- (void) arg;
- dummy_state = tor_malloc_zero(sizeof(or_state_t));
- hs_init();
- MOCK(get_or_state, get_or_state_replacement);
- MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- /* Descriptor rotation happens with a consensus with a new SRV. */
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
- &mock_ns.valid_after);
- tt_int_op(ret, OP_EQ, 0);
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 14:00:00 UTC",
- &mock_ns.fresh_until);
- tt_int_op(ret, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), mock_ns.valid_after);
- /* Create a service with a default descriptor and state. It's added to the
- * global map. */
- service = helper_create_service();
- service_descriptor_free(service->desc_current);
- service->desc_current = NULL;
- /* This triggers a build for both descriptors. The time now is only used in
- * the descriptor certificate which is important to be now else the decoding
- * will complain that the cert has expired if we use valid_after. */
- build_all_descriptors(now);
- tt_assert(service->desc_current);
- tt_assert(service->desc_next);
- /* Tweak our service next rotation time so we can use a custom time. */
- service->state.next_rotation_time = next_rotation_time =
- mock_ns.valid_after + (11 * 60 * 60);
- /* Nothing should happen, we are not at a new SRV. Our next rotation time
- * should be untouched. */
- rotate_all_descriptors(mock_ns.valid_after);
- tt_u64_op(service->state.next_rotation_time, OP_EQ, next_rotation_time);
- tt_assert(service->desc_current);
- tt_assert(service->desc_next);
- tt_u64_op(service->desc_current->time_period_num, OP_EQ,
- hs_get_previous_time_period_num(0));
- tt_u64_op(service->desc_next->time_period_num, OP_EQ,
- hs_get_time_period_num(0));
- /* Keep a reference so we can compare it after rotation to the current. */
- desc_next = service->desc_next;
- /* Going right after a new SRV. */
- ret = parse_rfc1123_time("Sat, 27 Oct 1985 01:00:00 UTC",
- &mock_ns.valid_after);
- tt_int_op(ret, OP_EQ, 0);
- ret = parse_rfc1123_time("Sat, 27 Oct 1985 02:00:00 UTC",
- &mock_ns.fresh_until);
- tt_int_op(ret, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), mock_ns.valid_after);
- /* Note down what to expect for the next rotation time which is 01:00 + 23h
- * meaning 00:00:00. */
- next_rotation_time = mock_ns.valid_after + (23 * 60 * 60);
- /* We should have our next rotation time modified, our current descriptor
- * cleaned up and the next descriptor becoming the current. */
- rotate_all_descriptors(mock_ns.valid_after);
- tt_u64_op(service->state.next_rotation_time, OP_EQ, next_rotation_time);
- tt_mem_op(service->desc_current, OP_EQ, desc_next, sizeof(*desc_next));
- tt_assert(service->desc_next == NULL);
- /* A second time should do nothing. */
- rotate_all_descriptors(mock_ns.valid_after);
- tt_u64_op(service->state.next_rotation_time, OP_EQ, next_rotation_time);
- tt_mem_op(service->desc_current, OP_EQ, desc_next, sizeof(*desc_next));
- tt_assert(service->desc_next == NULL);
- build_all_descriptors(now);
- tt_mem_op(service->desc_current, OP_EQ, desc_next, sizeof(*desc_next));
- tt_u64_op(service->desc_current->time_period_num, OP_EQ,
- hs_get_time_period_num(0));
- tt_u64_op(service->desc_next->time_period_num, OP_EQ,
- hs_get_next_time_period_num(0));
- tt_assert(service->desc_next);
- done:
- hs_free_all();
- UNMOCK(get_or_state);
- UNMOCK(circuit_mark_for_close_);
- UNMOCK(networkstatus_get_live_consensus);
- }
- /** Test building descriptors: picking intro points, setting up their link
- * specifiers, etc. */
- static void
- test_build_update_descriptors(void *arg)
- {
- int ret;
- time_t now = time(NULL);
- node_t *node;
- hs_service_t *service;
- hs_service_intro_point_t *ip_cur, *ip_next;
- routerinfo_t ri;
- (void) arg;
- hs_init();
- MOCK(get_or_state,
- get_or_state_replacement);
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- dummy_state = tor_malloc_zero(sizeof(or_state_t));
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 03:00:00 UTC",
- &mock_ns.valid_after);
- tt_int_op(ret, OP_EQ, 0);
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 04:00:00 UTC",
- &mock_ns.fresh_until);
- tt_int_op(ret, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), mock_ns.valid_after);
- /* Create a service without a current descriptor to trigger a build. */
- service = helper_create_service();
- tt_assert(service);
- /* Unfortunately, the helper creates a dummy descriptor so get rid of it. */
- service_descriptor_free(service->desc_current);
- service->desc_current = NULL;
- /* We have a fresh service so this should trigger a build for both
- * descriptors for specific time period that we'll test. */
- build_all_descriptors(now);
- /* Check *current* descriptor. */
- tt_assert(service->desc_current);
- tt_assert(service->desc_current->desc);
- tt_assert(service->desc_current->intro_points.map);
- /* The current time period is the one expected when starting at 03:00. */
- tt_u64_op(service->desc_current->time_period_num, OP_EQ,
- hs_get_time_period_num(0));
- /* This should be untouched, the update descriptor process changes it. */
- tt_u64_op(service->desc_current->next_upload_time, OP_EQ, 0);
- /* Check *next* descriptor. */
- tt_assert(service->desc_next);
- tt_assert(service->desc_next->desc);
- tt_assert(service->desc_next->intro_points.map);
- tt_assert(service->desc_current != service->desc_next);
- tt_u64_op(service->desc_next->time_period_num, OP_EQ,
- hs_get_next_time_period_num(0));
- /* This should be untouched, the update descriptor process changes it. */
- tt_u64_op(service->desc_next->next_upload_time, OP_EQ, 0);
- /* Time to test the update of those descriptors. At first, we have no node
- * in the routerlist so this will find NO suitable node for the IPs. */
- setup_full_capture_of_logs(LOG_INFO);
- update_all_descriptors(now);
- expect_log_msg_containing("Unable to find a suitable node to be an "
- "introduction point for service");
- teardown_capture_of_logs();
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 0);
- tt_int_op(digest256map_size(service->desc_next->intro_points.map),
- OP_EQ, 0);
- /* Now, we'll setup a node_t. */
- {
- tor_addr_t ipv4_addr;
- curve25519_secret_key_t curve25519_secret_key;
- memset(&ri, 0, sizeof(routerinfo_t));
- tor_addr_parse(&ipv4_addr, "127.0.0.1");
- ri.addr = tor_addr_to_ipv4h(&ipv4_addr);
- ri.or_port = 1337;
- ri.purpose = ROUTER_PURPOSE_GENERAL;
- /* Ugly yes but we never free the "ri" object so this just makes things
- * easier. */
- ri.protocol_list = (char *) "HSDir=1-2 LinkAuth=3";
- summarize_protover_flags(&ri.pv, ri.protocol_list, NULL);
- ret = curve25519_secret_key_generate(&curve25519_secret_key, 0);
- tt_int_op(ret, OP_EQ, 0);
- ri.onion_curve25519_pkey =
- tor_malloc_zero(sizeof(curve25519_public_key_t));
- ri.onion_pkey = crypto_pk_new();
- curve25519_public_key_generate(ri.onion_curve25519_pkey,
- &curve25519_secret_key);
- memset(ri.cache_info.identity_digest, 'A', DIGEST_LEN);
- /* Setup ed25519 identity */
- ed25519_keypair_t kp1;
- ed25519_keypair_generate(&kp1, 0);
- ri.cache_info.signing_key_cert = tor_malloc_zero(sizeof(tor_cert_t));
- tt_assert(ri.cache_info.signing_key_cert);
- ed25519_pubkey_copy(&ri.cache_info.signing_key_cert->signing_key,
- &kp1.pubkey);
- nodelist_set_routerinfo(&ri, NULL);
- node = node_get_mutable_by_id(ri.cache_info.identity_digest);
- tt_assert(node);
- node->is_running = node->is_valid = node->is_fast = node->is_stable = 1;
- }
- /* We have to set this, or the lack of microdescriptors for these
- * nodes will make them unusable. */
- get_options_mutable()->UseMicrodescriptors = 0;
- /* We expect to pick only one intro point from the node above. */
- setup_full_capture_of_logs(LOG_INFO);
- update_all_descriptors(now);
- tor_free(node->ri->onion_curve25519_pkey); /* Avoid memleak. */
- tor_free(node->ri->cache_info.signing_key_cert);
- crypto_pk_free(node->ri->onion_pkey);
- expect_log_msg_containing("just picked 1 intro points and wanted 3 for next "
- "descriptor. It currently has 0 intro points. "
- "Launching ESTABLISH_INTRO circuit shortly.");
- teardown_capture_of_logs();
- tt_int_op(digest256map_size(service->desc_current->intro_points.map),
- OP_EQ, 1);
- tt_int_op(digest256map_size(service->desc_next->intro_points.map),
- OP_EQ, 1);
- /* Get the IP object. Because we don't have the auth key of the IP, we can't
- * query it so get the first element in the map. */
- {
- void *obj = NULL;
- const uint8_t *key;
- digest256map_iter_t *iter =
- digest256map_iter_init(service->desc_current->intro_points.map);
- digest256map_iter_get(iter, &key, &obj);
- tt_assert(obj);
- ip_cur = obj;
- /* Get also the IP from the next descriptor. We'll make sure it's not the
- * same object as in the current descriptor. */
- iter = digest256map_iter_init(service->desc_next->intro_points.map);
- digest256map_iter_get(iter, &key, &obj);
- tt_assert(obj);
- ip_next = obj;
- }
- tt_mem_op(ip_cur, OP_NE, ip_next, sizeof(hs_desc_intro_point_t));
- /* We won't test the service IP object because there is a specific test
- * already for this but we'll make sure that the state is coherent.*/
- /* Three link specifiers are mandatoy so make sure we do have them. */
- tt_int_op(smartlist_len(ip_cur->base.link_specifiers), OP_EQ, 3);
- /* Make sure we have a valid encryption keypair generated when we pick an
- * intro point in the update process. */
- tt_assert(!tor_mem_is_zero((char *) ip_cur->enc_key_kp.seckey.secret_key,
- CURVE25519_SECKEY_LEN));
- tt_assert(!tor_mem_is_zero((char *) ip_cur->enc_key_kp.pubkey.public_key,
- CURVE25519_PUBKEY_LEN));
- tt_u64_op(ip_cur->time_to_expire, OP_GE, now +
- INTRO_POINT_LIFETIME_MIN_SECONDS);
- tt_u64_op(ip_cur->time_to_expire, OP_LE, now +
- INTRO_POINT_LIFETIME_MAX_SECONDS);
- /* Now, we will try to set up a service after a new time period has started
- * and see if it behaves as expected. */
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
- &mock_ns.valid_after);
- tt_int_op(ret, OP_EQ, 0);
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 14:00:00 UTC",
- &mock_ns.fresh_until);
- tt_int_op(ret, OP_EQ, 0);
- /* Create a service without a current descriptor to trigger a build. */
- service = helper_create_service();
- tt_assert(service);
- /* Unfortunately, the helper creates a dummy descriptor so get rid of it. */
- service_descriptor_free(service->desc_current);
- service->desc_current = NULL;
- /* We have a fresh service so this should trigger a build for both
- * descriptors for specific time period that we'll test. */
- build_all_descriptors(now);
- /* Check *current* descriptor. */
- tt_assert(service->desc_current);
- tt_assert(service->desc_current->desc);
- tt_assert(service->desc_current->intro_points.map);
- /* This should be for the previous time period. */
- tt_u64_op(service->desc_current->time_period_num, OP_EQ,
- hs_get_previous_time_period_num(0));
- /* This should be untouched, the update descriptor process changes it. */
- tt_u64_op(service->desc_current->next_upload_time, OP_EQ, 0);
- /* Check *next* descriptor. */
- tt_assert(service->desc_next);
- tt_assert(service->desc_next->desc);
- tt_assert(service->desc_next->intro_points.map);
- tt_assert(service->desc_current != service->desc_next);
- tt_u64_op(service->desc_next->time_period_num, OP_EQ,
- hs_get_time_period_num(0));
- /* This should be untouched, the update descriptor process changes it. */
- tt_u64_op(service->desc_next->next_upload_time, OP_EQ, 0);
- /* Let's remove the next descriptor to simulate a rotation. */
- service_descriptor_free(service->desc_next);
- service->desc_next = NULL;
- build_all_descriptors(now);
- /* Check *next* descriptor. */
- tt_assert(service->desc_next);
- tt_assert(service->desc_next->desc);
- tt_assert(service->desc_next->intro_points.map);
- tt_assert(service->desc_current != service->desc_next);
- tt_u64_op(service->desc_next->time_period_num, OP_EQ,
- hs_get_next_time_period_num(0));
- /* This should be untouched, the update descriptor process changes it. */
- tt_u64_op(service->desc_next->next_upload_time, OP_EQ, 0);
- done:
- hs_free_all();
- nodelist_free_all();
- }
- static void
- test_upload_descriptors(void *arg)
- {
- int ret;
- time_t now = time(NULL);
- hs_service_t *service;
- (void) arg;
- hs_init();
- MOCK(get_or_state,
- get_or_state_replacement);
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- dummy_state = tor_malloc_zero(sizeof(or_state_t));
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
- &mock_ns.valid_after);
- tt_int_op(ret, OP_EQ, 0);
- ret = parse_rfc1123_time("Sat, 26 Oct 1985 14:00:00 UTC",
- &mock_ns.fresh_until);
- tt_int_op(ret, OP_EQ, 0);
- /* Create a service with no descriptor. It's added to the global map. */
- service = hs_service_new(get_options());
- tt_assert(service);
- service->config.version = HS_VERSION_THREE;
- ed25519_secret_key_generate(&service->keys.identity_sk, 0);
- ed25519_public_key_generate(&service->keys.identity_pk,
- &service->keys.identity_sk);
- /* Register service to global map. */
- ret = register_service(get_hs_service_map(), service);
- tt_int_op(ret, OP_EQ, 0);
- /* But first, build our descriptor. */
- build_all_descriptors(now);
- /* Nothing should happen because we have 0 introduction circuit established
- * and we want (by default) 3 intro points. */
- run_upload_descriptor_event(now);
- /* If no upload happened, this should be untouched. */
- tt_u64_op(service->desc_current->next_upload_time, OP_EQ, 0);
- /* We'll simulate that we've opened our intro point circuit and that we only
- * want one intro point. */
- service->config.num_intro_points = 1;
- /* Set our next upload time after now which will skip the upload. */
- service->desc_current->next_upload_time = now + 1000;
- run_upload_descriptor_event(now);
- /* If no upload happened, this should be untouched. */
- tt_u64_op(service->desc_current->next_upload_time, OP_EQ, now + 1000);
- done:
- hs_free_all();
- UNMOCK(get_or_state);
- }
- /** Test the functions that save and load HS revision counters to state. */
- static void
- test_revision_counter_state(void *arg)
- {
- char *state_line_one = NULL;
- char *state_line_two = NULL;
- hs_service_descriptor_t *desc_one = service_descriptor_new();
- hs_service_descriptor_t *desc_two = service_descriptor_new();
- (void) arg;
- /* Prepare both descriptors */
- desc_one->desc->plaintext_data.revision_counter = 42;
- desc_two->desc->plaintext_data.revision_counter = 240;
- memset(&desc_one->blinded_kp.pubkey.pubkey, 66,
- sizeof(desc_one->blinded_kp.pubkey.pubkey));
- memset(&desc_two->blinded_kp.pubkey.pubkey, 240,
- sizeof(desc_one->blinded_kp.pubkey.pubkey));
- /* Turn the descriptor rev counters into state lines */
- state_line_one = encode_desc_rev_counter_for_state(desc_one);
- tt_str_op(state_line_one, OP_EQ,
- "QkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkI 42");
- state_line_two = encode_desc_rev_counter_for_state(desc_two);
- tt_str_op(state_line_two, OP_EQ,
- "8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PDw8PA 240");
- /* Now let's test our state parsing function: */
- int service_found;
- uint64_t cached_rev_counter;
- /* First's try with wrong pubkey and check that no service was found */
- cached_rev_counter =check_state_line_for_service_rev_counter(state_line_one,
- &desc_two->blinded_kp.pubkey,
- &service_found);
- tt_int_op(service_found, OP_EQ, 0);
- tt_u64_op(cached_rev_counter, OP_EQ, 0);
- /* Now let's try with the right pubkeys */
- cached_rev_counter =check_state_line_for_service_rev_counter(state_line_one,
- &desc_one->blinded_kp.pubkey,
- &service_found);
- tt_int_op(service_found, OP_EQ, 1);
- tt_u64_op(cached_rev_counter, OP_EQ, 42);
- cached_rev_counter =check_state_line_for_service_rev_counter(state_line_two,
- &desc_two->blinded_kp.pubkey,
- &service_found);
- tt_int_op(service_found, OP_EQ, 1);
- tt_u64_op(cached_rev_counter, OP_EQ, 240);
- done:
- tor_free(state_line_one);
- tor_free(state_line_two);
- service_descriptor_free(desc_one);
- service_descriptor_free(desc_two);
- }
- /** Global vars used by test_rendezvous1_parsing() */
- static char rend1_payload[RELAY_PAYLOAD_SIZE];
- static size_t rend1_payload_len = 0;
- /** Mock for relay_send_command_from_edge() to send a RENDEZVOUS1 cell. Instead
- * of sending it to the network, instead save it to the global `rend1_payload`
- * variable so that we can inspect it in the test_rendezvous1_parsing()
- * test. */
- static int
- mock_relay_send_rendezvous1(streamid_t stream_id, circuit_t *circ,
- uint8_t relay_command, const char *payload,
- size_t payload_len,
- crypt_path_t *cpath_layer,
- const char *filename, int lineno)
- {
- (void) stream_id;
- (void) circ;
- (void) relay_command;
- (void) cpath_layer;
- (void) filename;
- (void) lineno;
- memcpy(rend1_payload, payload, payload_len);
- rend1_payload_len = payload_len;
- return 0;
- }
- /** Send a RENDEZVOUS1 as a service, and parse it as a client. */
- static void
- test_rendezvous1_parsing(void *arg)
- {
- int retval;
- static const char *test_addr =
- "4acth47i6kxnvkewtm6q7ib2s3ufpo5sqbsnzjpbi7utijcltosqemad.onion";
- hs_service_t *service = NULL;
- origin_circuit_t *service_circ = NULL;
- origin_circuit_t *client_circ = NULL;
- ed25519_keypair_t ip_auth_kp;
- curve25519_keypair_t ephemeral_kp;
- curve25519_keypair_t client_kp;
- curve25519_keypair_t ip_enc_kp;
- int flags = CIRCLAUNCH_NEED_UPTIME | CIRCLAUNCH_IS_INTERNAL;
- (void) arg;
- MOCK(relay_send_command_from_edge_, mock_relay_send_rendezvous1);
- {
- /* Let's start by setting up the service that will start the rend */
- service = tor_malloc_zero(sizeof(hs_service_t));
- ed25519_secret_key_generate(&service->keys.identity_sk, 0);
- ed25519_public_key_generate(&service->keys.identity_pk,
- &service->keys.identity_sk);
- memcpy(service->onion_address, test_addr, sizeof(service->onion_address));
- tt_assert(service);
- }
- {
- /* Now let's set up the service rendezvous circuit and its keys. */
- service_circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_S_CONNECT_REND,
- flags);
- tor_free(service_circ->hs_ident);
- hs_ntor_rend_cell_keys_t hs_ntor_rend_cell_keys;
- uint8_t rendezvous_cookie[HS_REND_COOKIE_LEN];
- curve25519_keypair_generate(&ip_enc_kp, 0);
- curve25519_keypair_generate(&ephemeral_kp, 0);
- curve25519_keypair_generate(&client_kp, 0);
- ed25519_keypair_generate(&ip_auth_kp, 0);
- retval = hs_ntor_service_get_rendezvous1_keys(&ip_auth_kp.pubkey,
- &ip_enc_kp,
- &ephemeral_kp,
- &client_kp.pubkey,
- &hs_ntor_rend_cell_keys);
- tt_int_op(retval, OP_EQ, 0);
- memset(rendezvous_cookie, 2, sizeof(rendezvous_cookie));
- service_circ->hs_ident =
- create_rp_circuit_identifier(service, rendezvous_cookie,
- &ephemeral_kp.pubkey,
- &hs_ntor_rend_cell_keys);
- }
- /* Send out the RENDEZVOUS1 and make sure that our mock func worked */
- tt_assert(tor_mem_is_zero(rend1_payload, 32));
- hs_circ_service_rp_has_opened(service, service_circ);
- tt_assert(!tor_mem_is_zero(rend1_payload, 32));
- tt_int_op(rend1_payload_len, OP_EQ, HS_LEGACY_RENDEZVOUS_CELL_SIZE);
- /******************************/
- /** Now let's create the client rendezvous circuit */
- client_circ =
- helper_create_origin_circuit(CIRCUIT_PURPOSE_C_REND_READY_INTRO_ACKED,
- flags);
- /* fix up its circ ident */
- ed25519_pubkey_copy(&client_circ->hs_ident->intro_auth_pk,
- &ip_auth_kp.pubkey);
- memcpy(&client_circ->hs_ident->rendezvous_client_kp,
- &client_kp, sizeof(client_circ->hs_ident->rendezvous_client_kp));
- memcpy(&client_circ->hs_ident->intro_enc_pk.public_key,
- &ip_enc_kp.pubkey.public_key,
- sizeof(client_circ->hs_ident->intro_enc_pk.public_key));
- /* Now parse the rendezvous2 circuit and make sure it was fine. We are
- * skipping 20 bytes off its payload, since that's the rendezvous cookie
- * which is only present in REND1. */
- retval = handle_rendezvous2(client_circ,
- (uint8_t*)rend1_payload+20,
- rend1_payload_len-20);
- tt_int_op(retval, OP_EQ, 0);
- /* TODO: We are only simulating client/service here. We could also simulate
- * the rendezvous point by plugging in rend_mid_establish_rendezvous(). We
- * would need an extra circuit and some more stuff but it's doable. */
- done:
- circuit_free_(TO_CIRCUIT(service_circ));
- circuit_free_(TO_CIRCUIT(client_circ));
- hs_service_free(service);
- hs_free_all();
- UNMOCK(relay_send_command_from_edge_);
- }
- struct testcase_t hs_service_tests[] = {
- { "e2e_rend_circuit_setup", test_e2e_rend_circuit_setup, TT_FORK,
- NULL, NULL },
- { "load_keys", test_load_keys, TT_FORK,
- NULL, NULL },
- { "access_service", test_access_service, TT_FORK,
- NULL, NULL },
- { "service_intro_point", test_service_intro_point, TT_FORK,
- NULL, NULL },
- { "helper_functions", test_helper_functions, TT_FORK,
- NULL, NULL },
- { "intro_circuit_opened", test_intro_circuit_opened, TT_FORK,
- NULL, NULL },
- { "intro_established", test_intro_established, TT_FORK,
- NULL, NULL },
- { "closing_intro_circs", test_closing_intro_circs, TT_FORK,
- NULL, NULL },
- { "rdv_circuit_opened", test_rdv_circuit_opened, TT_FORK,
- NULL, NULL },
- { "introduce2", test_introduce2, TT_FORK,
- NULL, NULL },
- { "service_event", test_service_event, TT_FORK,
- NULL, NULL },
- { "rotate_descriptors", test_rotate_descriptors, TT_FORK,
- NULL, NULL },
- { "build_update_descriptors", test_build_update_descriptors, TT_FORK,
- NULL, NULL },
- { "upload_descriptors", test_upload_descriptors, TT_FORK,
- NULL, NULL },
- { "revision_counter_state", test_revision_counter_state, TT_FORK,
- NULL, NULL },
- { "rendezvous1_parsing", test_rendezvous1_parsing, TT_FORK,
- NULL, NULL },
- END_OF_TESTCASES
- };
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