/* 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 */ /** * \file test.c * \brief Unit tests for many pieces of the lower level Tor modules. **/ #include "orconfig.h" #include "lib/crypt_ops/crypto_dh.h" #include "lib/crypt_ops/crypto_rand.h" #include "app/config/or_state_st.h" #include #ifdef HAVE_FCNTL_H #include #endif #ifdef _WIN32 /* For mkdir() */ #include #else #include #endif /* defined(_WIN32) */ #include /* These macros pull in declarations for some functions and structures that * are typically file-private. */ #define ROUTER_PRIVATE #define CIRCUITSTATS_PRIVATE #define CIRCUITLIST_PRIVATE #define MAINLOOP_PRIVATE #define STATEFILE_PRIVATE #include "core/or/or.h" #include "lib/err/backtrace.h" #include "lib/container/buffers.h" #include "core/or/circuitlist.h" #include "core/or/circuitstats.h" #include "lib/compress/compress.h" #include "app/config/config.h" #include "core/or/connection_edge.h" #include "feature/rend/rendcommon.h" #include "feature/rend/rendcache.h" #include "feature/rend/rendparse.h" #include "test/test.h" #include "core/mainloop/mainloop.h" #include "lib/memarea/memarea.h" #include "core/or/onion.h" #include "core/crypto/onion_ntor.h" #include "core/crypto/onion_fast.h" #include "core/crypto/onion_tap.h" #include "core/or/policies.h" #include "feature/stats/rephist.h" #include "app/config/statefile.h" #include "lib/crypt_ops/crypto_curve25519.h" #include "core/or/extend_info_st.h" #include "core/or/or_circuit_st.h" #include "feature/rend/rend_encoded_v2_service_descriptor_st.h" #include "feature/rend/rend_intro_point_st.h" #include "feature/rend/rend_service_descriptor_st.h" #include "feature/relay/onion_queue.h" /** Run unit tests for the onion handshake code. */ static void test_onion_handshake(void *arg) { /* client-side */ crypto_dh_t *c_dh = NULL; char c_buf[TAP_ONIONSKIN_CHALLENGE_LEN]; char c_keys[40]; /* server-side */ char s_buf[TAP_ONIONSKIN_REPLY_LEN]; char s_keys[40]; int i; /* shared */ crypto_pk_t *pk = NULL, *pk2 = NULL; (void)arg; pk = pk_generate(0); pk2 = pk_generate(1); /* client handshake 1. */ memset(c_buf, 0, TAP_ONIONSKIN_CHALLENGE_LEN); tt_assert(! onion_skin_TAP_create(pk, &c_dh, c_buf)); for (i = 1; i <= 3; ++i) { crypto_pk_t *k1, *k2; if (i==1) { /* server handshake: only one key known. */ k1 = pk; k2 = NULL; } else if (i==2) { /* server handshake: try the right key first. */ k1 = pk; k2 = pk2; } else { /* server handshake: try the right key second. */ k1 = pk2; k2 = pk; } memset(s_buf, 0, TAP_ONIONSKIN_REPLY_LEN); memset(s_keys, 0, 40); tt_assert(! onion_skin_TAP_server_handshake(c_buf, k1, k2, s_buf, s_keys, 40)); /* client handshake 2 */ memset(c_keys, 0, 40); tt_assert(! onion_skin_TAP_client_handshake(c_dh, s_buf, c_keys, 40, NULL)); tt_mem_op(c_keys,OP_EQ, s_keys, 40); memset(s_buf, 0, 40); tt_mem_op(c_keys,OP_NE, s_buf, 40); } done: crypto_dh_free(c_dh); crypto_pk_free(pk); crypto_pk_free(pk2); } static void test_bad_onion_handshake(void *arg) { char junk_buf[TAP_ONIONSKIN_CHALLENGE_LEN]; char junk_buf2[TAP_ONIONSKIN_CHALLENGE_LEN]; /* client-side */ crypto_dh_t *c_dh = NULL; char c_buf[TAP_ONIONSKIN_CHALLENGE_LEN]; char c_keys[40]; /* server-side */ char s_buf[TAP_ONIONSKIN_REPLY_LEN]; char s_keys[40]; /* shared */ crypto_pk_t *pk = NULL, *pk2 = NULL; (void)arg; pk = pk_generate(0); pk2 = pk_generate(1); /* Server: Case 1: the encrypted data is degenerate. */ memset(junk_buf, 0, sizeof(junk_buf)); crypto_pk_obsolete_public_hybrid_encrypt(pk, junk_buf2, TAP_ONIONSKIN_CHALLENGE_LEN, junk_buf, DH1024_KEY_LEN, PK_PKCS1_OAEP_PADDING, 1); tt_int_op(-1, OP_EQ, onion_skin_TAP_server_handshake(junk_buf2, pk, NULL, s_buf, s_keys, 40)); /* Server: Case 2: the encrypted data is not long enough. */ memset(junk_buf, 0, sizeof(junk_buf)); memset(junk_buf2, 0, sizeof(junk_buf2)); crypto_pk_public_encrypt(pk, junk_buf2, sizeof(junk_buf2), junk_buf, 48, PK_PKCS1_OAEP_PADDING); tt_int_op(-1, OP_EQ, onion_skin_TAP_server_handshake(junk_buf2, pk, NULL, s_buf, s_keys, 40)); /* client handshake 1: do it straight. */ memset(c_buf, 0, TAP_ONIONSKIN_CHALLENGE_LEN); tt_assert(! onion_skin_TAP_create(pk, &c_dh, c_buf)); /* Server: Case 3: we just don't have the right key. */ tt_int_op(-1, OP_EQ, onion_skin_TAP_server_handshake(c_buf, pk2, NULL, s_buf, s_keys, 40)); /* Server: Case 4: The RSA-encrypted portion is corrupt. */ c_buf[64] ^= 33; tt_int_op(-1, OP_EQ, onion_skin_TAP_server_handshake(c_buf, pk, NULL, s_buf, s_keys, 40)); c_buf[64] ^= 33; /* (Let the server proceed) */ tt_int_op(0, OP_EQ, onion_skin_TAP_server_handshake(c_buf, pk, NULL, s_buf, s_keys, 40)); /* Client: Case 1: The server sent back junk. */ const char *msg = NULL; s_buf[64] ^= 33; tt_int_op(-1, OP_EQ, onion_skin_TAP_client_handshake(c_dh, s_buf, c_keys, 40, &msg)); s_buf[64] ^= 33; tt_str_op(msg, OP_EQ, "Digest DOES NOT MATCH on onion handshake. " "Bug or attack."); /* Let the client finish; make sure it can. */ msg = NULL; tt_int_op(0, OP_EQ, onion_skin_TAP_client_handshake(c_dh, s_buf, c_keys, 40, &msg)); tt_mem_op(s_keys,OP_EQ, c_keys, 40); tt_ptr_op(msg, OP_EQ, NULL); /* Client: Case 2: The server sent back a degenerate DH. */ memset(s_buf, 0, sizeof(s_buf)); tt_int_op(-1, OP_EQ, onion_skin_TAP_client_handshake(c_dh, s_buf, c_keys, 40, &msg)); tt_str_op(msg, OP_EQ, "DH computation failed."); done: crypto_dh_free(c_dh); crypto_pk_free(pk); crypto_pk_free(pk2); } static void test_ntor_handshake(void *arg) { /* client-side */ ntor_handshake_state_t *c_state = NULL; uint8_t c_buf[NTOR_ONIONSKIN_LEN]; uint8_t c_keys[400]; /* server-side */ di_digest256_map_t *s_keymap=NULL; curve25519_keypair_t s_keypair; uint8_t s_buf[NTOR_REPLY_LEN]; uint8_t s_keys[400]; /* shared */ const curve25519_public_key_t *server_pubkey; uint8_t node_id[20] = "abcdefghijklmnopqrst"; (void) arg; /* Make the server some keys */ curve25519_secret_key_generate(&s_keypair.seckey, 0); curve25519_public_key_generate(&s_keypair.pubkey, &s_keypair.seckey); dimap_add_entry(&s_keymap, s_keypair.pubkey.public_key, &s_keypair); server_pubkey = &s_keypair.pubkey; /* client handshake 1. */ memset(c_buf, 0, NTOR_ONIONSKIN_LEN); tt_int_op(0, OP_EQ, onion_skin_ntor_create(node_id, server_pubkey, &c_state, c_buf)); /* server handshake */ memset(s_buf, 0, NTOR_REPLY_LEN); memset(s_keys, 0, 40); tt_int_op(0, OP_EQ, onion_skin_ntor_server_handshake(c_buf, s_keymap, NULL, node_id, s_buf, s_keys, 400)); /* client handshake 2 */ memset(c_keys, 0, 40); tt_int_op(0, OP_EQ, onion_skin_ntor_client_handshake(c_state, s_buf, c_keys, 400, NULL)); tt_mem_op(c_keys,OP_EQ, s_keys, 400); memset(s_buf, 0, 40); tt_mem_op(c_keys,OP_NE, s_buf, 40); /* Now try with a bogus server response. Zero input should trigger * All The Problems. */ memset(c_keys, 0, 400); memset(s_buf, 0, NTOR_REPLY_LEN); const char *msg = NULL; tt_int_op(-1, OP_EQ, onion_skin_ntor_client_handshake(c_state, s_buf, c_keys, 400, &msg)); tt_str_op(msg, OP_EQ, "Zero output from curve25519 handshake"); done: ntor_handshake_state_free(c_state); dimap_free(s_keymap, NULL); } static void test_fast_handshake(void *arg) { /* tests for the obsolete "CREATE_FAST" handshake. */ (void) arg; fast_handshake_state_t *state = NULL; uint8_t client_handshake[CREATE_FAST_LEN]; uint8_t server_handshake[CREATED_FAST_LEN]; uint8_t s_keys[100], c_keys[100]; /* First, test an entire handshake. */ memset(client_handshake, 0, sizeof(client_handshake)); tt_int_op(0, OP_EQ, fast_onionskin_create(&state, client_handshake)); tt_assert(! tor_mem_is_zero((char*)client_handshake, sizeof(client_handshake))); tt_int_op(0, OP_EQ, fast_server_handshake(client_handshake, server_handshake, s_keys, 100)); const char *msg = NULL; tt_int_op(0, OP_EQ, fast_client_handshake(state, server_handshake, c_keys, 100, &msg)); tt_ptr_op(msg, OP_EQ, NULL); tt_mem_op(s_keys, OP_EQ, c_keys, 100); /* Now test a failing handshake. */ server_handshake[0] ^= 3; tt_int_op(-1, OP_EQ, fast_client_handshake(state, server_handshake, c_keys, 100, &msg)); tt_str_op(msg, OP_EQ, "Digest DOES NOT MATCH on fast handshake. " "Bug or attack."); done: fast_handshake_state_free(state); } /** Run unit tests for the onion queues. */ static void test_onion_queues(void *arg) { uint8_t buf1[TAP_ONIONSKIN_CHALLENGE_LEN] = {0}; uint8_t buf2[NTOR_ONIONSKIN_LEN] = {0}; or_circuit_t *circ1 = or_circuit_new(0, NULL); or_circuit_t *circ2 = or_circuit_new(0, NULL); create_cell_t *onionskin = NULL, *create2_ptr; create_cell_t *create1 = tor_malloc_zero(sizeof(create_cell_t)); create_cell_t *create2 = tor_malloc_zero(sizeof(create_cell_t)); (void)arg; create2_ptr = create2; /* remember, but do not free */ create_cell_init(create1, CELL_CREATE, ONION_HANDSHAKE_TYPE_TAP, TAP_ONIONSKIN_CHALLENGE_LEN, buf1); create_cell_init(create2, CELL_CREATE, ONION_HANDSHAKE_TYPE_NTOR, NTOR_ONIONSKIN_LEN, buf2); tt_int_op(0,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_TAP)); tt_int_op(0,OP_EQ, onion_pending_add(circ1, create1)); create1 = NULL; tt_int_op(1,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_TAP)); tt_int_op(0,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_NTOR)); tt_int_op(0,OP_EQ, onion_pending_add(circ2, create2)); create2 = NULL; tt_int_op(1,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_NTOR)); tt_ptr_op(circ2,OP_EQ, onion_next_task(&onionskin)); tt_int_op(1,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_TAP)); tt_int_op(0,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_NTOR)); tt_ptr_op(onionskin, OP_EQ, create2_ptr); clear_pending_onions(); tt_int_op(0,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_TAP)); tt_int_op(0,OP_EQ, onion_num_pending(ONION_HANDSHAKE_TYPE_NTOR)); done: circuit_free_(TO_CIRCUIT(circ1)); circuit_free_(TO_CIRCUIT(circ2)); tor_free(create1); tor_free(create2); tor_free(onionskin); } static crypto_cipher_t *crypto_rand_aes_cipher = NULL; // Mock replacement for crypto_rand: Generates bytes from a provided AES_CTR // cipher in crypto_rand_aes_cipher. static void crypto_rand_deterministic_aes(char *out, size_t n) { tor_assert(crypto_rand_aes_cipher); memset(out, 0, n); crypto_cipher_crypt_inplace(crypto_rand_aes_cipher, out, n); } static void test_circuit_timeout(void *arg) { /* Plan: * 1. Generate 1000 samples * 2. Estimate parameters * 3. If difference, repeat * 4. Save state * 5. load state * 6. Estimate parameters * 7. compare differences */ circuit_build_times_t initial; circuit_build_times_t estimate; circuit_build_times_t final; double timeout1, timeout2; or_state_t *state=NULL; int i, runs; double close_ms; (void)arg; initialize_periodic_events(); circuit_build_times_init(&initial); circuit_build_times_init(&estimate); circuit_build_times_init(&final); state = or_state_new(); // Use a deterministic RNG here, or else we'll get nondeterministic // coverage in some of the circuitstats functions. MOCK(crypto_rand, crypto_rand_deterministic_aes); crypto_rand_aes_cipher = crypto_cipher_new("xyzzyplughplover"); circuitbuild_running_unit_tests(); #define timeout0 (build_time_t)(30*1000.0) initial.Xm = 3000; circuit_build_times_initial_alpha(&initial, CBT_DEFAULT_QUANTILE_CUTOFF/100.0, timeout0); close_ms = MAX(circuit_build_times_calculate_timeout(&initial, CBT_DEFAULT_CLOSE_QUANTILE/100.0), CBT_DEFAULT_TIMEOUT_INITIAL_VALUE); do { for (i=0; i < CBT_DEFAULT_MIN_CIRCUITS_TO_OBSERVE; i++) { build_time_t sample = circuit_build_times_generate_sample(&initial,0,1); if (sample > close_ms) { circuit_build_times_add_time(&estimate, CBT_BUILD_ABANDONED); } else { circuit_build_times_add_time(&estimate, sample); } } circuit_build_times_update_alpha(&estimate); timeout1 = circuit_build_times_calculate_timeout(&estimate, CBT_DEFAULT_QUANTILE_CUTOFF/100.0); circuit_build_times_set_timeout(&estimate); log_notice(LD_CIRC, "Timeout1 is %f, Xm is %d", timeout1, estimate.Xm); /* 2% error */ } while (fabs(circuit_build_times_cdf(&initial, timeout0) - circuit_build_times_cdf(&initial, timeout1)) > 0.02); tt_int_op(estimate.total_build_times, OP_LE, CBT_NCIRCUITS_TO_OBSERVE); circuit_build_times_update_state(&estimate, state); circuit_build_times_free_timeouts(&final); tt_int_op(circuit_build_times_parse_state(&final, state), OP_EQ, 0); circuit_build_times_update_alpha(&final); timeout2 = circuit_build_times_calculate_timeout(&final, CBT_DEFAULT_QUANTILE_CUTOFF/100.0); circuit_build_times_set_timeout(&final); log_notice(LD_CIRC, "Timeout2 is %f, Xm is %d", timeout2, final.Xm); /* 5% here because some accuracy is lost due to histogram conversion */ tt_assert(fabs(circuit_build_times_cdf(&initial, timeout0) - circuit_build_times_cdf(&initial, timeout2)) < 0.05); for (runs = 0; runs < 50; runs++) { int build_times_idx = 0; int total_build_times = 0; final.close_ms = final.timeout_ms = CBT_DEFAULT_TIMEOUT_INITIAL_VALUE; estimate.close_ms = estimate.timeout_ms = CBT_DEFAULT_TIMEOUT_INITIAL_VALUE; for (i = 0; i < CBT_DEFAULT_RECENT_CIRCUITS*2; i++) { circuit_build_times_network_circ_success(&estimate); circuit_build_times_add_time(&estimate, circuit_build_times_generate_sample(&estimate, 0, CBT_DEFAULT_QUANTILE_CUTOFF/100.0)); circuit_build_times_network_circ_success(&estimate); circuit_build_times_add_time(&final, circuit_build_times_generate_sample(&final, 0, CBT_DEFAULT_QUANTILE_CUTOFF/100.0)); } tt_assert(!circuit_build_times_network_check_changed(&estimate)); tt_assert(!circuit_build_times_network_check_changed(&final)); /* Reset liveness to be non-live */ final.liveness.network_last_live = 0; estimate.liveness.network_last_live = 0; build_times_idx = estimate.build_times_idx; total_build_times = estimate.total_build_times; tt_assert(circuit_build_times_network_check_live(&estimate)); tt_assert(circuit_build_times_network_check_live(&final)); circuit_build_times_count_close(&estimate, 0, (time_t)(approx_time()-estimate.close_ms/1000.0-1)); circuit_build_times_count_close(&final, 0, (time_t)(approx_time()-final.close_ms/1000.0-1)); tt_assert(!circuit_build_times_network_check_live(&estimate)); tt_assert(!circuit_build_times_network_check_live(&final)); log_info(LD_CIRC, "idx: %d %d, tot: %d %d", build_times_idx, estimate.build_times_idx, total_build_times, estimate.total_build_times); /* Check rollback index. Should match top of loop. */ tt_assert(build_times_idx == estimate.build_times_idx); // This can fail if estimate.total_build_times == 1000, because // in that case, rewind actually causes us to lose timeouts if (total_build_times != CBT_NCIRCUITS_TO_OBSERVE) tt_assert(total_build_times == estimate.total_build_times); /* Now simulate that the network has become live and we need * a change */ circuit_build_times_network_is_live(&estimate); circuit_build_times_network_is_live(&final); for (i = 0; i < CBT_DEFAULT_MAX_RECENT_TIMEOUT_COUNT; i++) { circuit_build_times_count_timeout(&estimate, 1); if (i < CBT_DEFAULT_MAX_RECENT_TIMEOUT_COUNT-1) { circuit_build_times_count_timeout(&final, 1); } } tt_int_op(estimate.liveness.after_firsthop_idx, OP_EQ, 0); tt_assert(final.liveness.after_firsthop_idx == CBT_DEFAULT_MAX_RECENT_TIMEOUT_COUNT-1); tt_assert(circuit_build_times_network_check_live(&estimate)); tt_assert(circuit_build_times_network_check_live(&final)); circuit_build_times_count_timeout(&final, 1); /* Ensure return value for degenerate cases are clamped correctly */ initial.alpha = INT32_MAX; tt_assert(circuit_build_times_calculate_timeout(&initial, .99999999) <= INT32_MAX); initial.alpha = 0; tt_assert(circuit_build_times_calculate_timeout(&initial, .5) <= INT32_MAX); } done: circuit_build_times_free_timeouts(&initial); circuit_build_times_free_timeouts(&estimate); circuit_build_times_free_timeouts(&final); or_state_free(state); teardown_periodic_events(); UNMOCK(crypto_rand); crypto_cipher_free(crypto_rand_aes_cipher); } /** Test encoding and parsing of rendezvous service descriptors. */ static void test_rend_fns(void *arg) { rend_service_descriptor_t *generated = NULL, *parsed = NULL; char service_id[DIGEST_LEN]; char service_id_base32[REND_SERVICE_ID_LEN_BASE32+1]; const char *next_desc; smartlist_t *descs = smartlist_new(); char computed_desc_id[DIGEST_LEN]; char parsed_desc_id[DIGEST_LEN]; crypto_pk_t *pk1 = NULL, *pk2 = NULL; time_t now; char *intro_points_encrypted = NULL; size_t intro_points_size; size_t encoded_size; int i; (void)arg; /* Initialize the service cache. */ rend_cache_init(); pk1 = pk_generate(0); pk2 = pk_generate(1); generated = tor_malloc_zero(sizeof(rend_service_descriptor_t)); generated->pk = crypto_pk_dup_key(pk1); crypto_pk_get_digest(generated->pk, service_id); base32_encode(service_id_base32, REND_SERVICE_ID_LEN_BASE32+1, service_id, REND_SERVICE_ID_LEN); now = time(NULL); generated->timestamp = now; generated->version = 2; generated->protocols = 42; generated->intro_nodes = smartlist_new(); for (i = 0; i < 3; i++) { rend_intro_point_t *intro = tor_malloc_zero(sizeof(rend_intro_point_t)); crypto_pk_t *okey = pk_generate(2 + i); intro->extend_info = tor_malloc_zero(sizeof(extend_info_t)); intro->extend_info->onion_key = okey; crypto_pk_get_digest(intro->extend_info->onion_key, intro->extend_info->identity_digest); //crypto_rand(info->identity_digest, DIGEST_LEN); /* Would this work? */ intro->extend_info->nickname[0] = '$'; base16_encode(intro->extend_info->nickname + 1, sizeof(intro->extend_info->nickname) - 1, intro->extend_info->identity_digest, DIGEST_LEN); /* Does not cover all IP addresses. */ tor_addr_from_ipv4h(&intro->extend_info->addr, crypto_rand_int(65536)); intro->extend_info->port = 1 + crypto_rand_int(65535); intro->intro_key = crypto_pk_dup_key(pk2); smartlist_add(generated->intro_nodes, intro); } int rv = rend_encode_v2_descriptors(descs, generated, now, 0, REND_NO_AUTH, NULL, NULL); tt_int_op(rv, OP_GT, 0); rv = rend_compute_v2_desc_id(computed_desc_id, service_id_base32, NULL, now, 0); tt_int_op(rv, OP_EQ, 0); tt_mem_op(((rend_encoded_v2_service_descriptor_t *) smartlist_get(descs, 0))->desc_id, OP_EQ, computed_desc_id, DIGEST_LEN); rv = rend_parse_v2_service_descriptor(&parsed, parsed_desc_id, &intro_points_encrypted, &intro_points_size, &encoded_size, &next_desc, ((rend_encoded_v2_service_descriptor_t *)smartlist_get(descs, 0)) ->desc_str, 1); tt_int_op(rv, OP_EQ, 0); tt_assert(parsed); tt_mem_op(((rend_encoded_v2_service_descriptor_t *) smartlist_get(descs, 0))->desc_id,OP_EQ, parsed_desc_id, DIGEST_LEN); tt_int_op(rend_parse_introduction_points(parsed, intro_points_encrypted, intro_points_size),OP_EQ, 3); tt_assert(!crypto_pk_cmp_keys(generated->pk, parsed->pk)); tt_int_op(parsed->timestamp,OP_EQ, now); tt_int_op(parsed->version,OP_EQ, 2); tt_int_op(parsed->protocols,OP_EQ, 42); tt_int_op(smartlist_len(parsed->intro_nodes),OP_EQ, 3); for (i = 0; i < smartlist_len(parsed->intro_nodes); i++) { rend_intro_point_t *par_intro = smartlist_get(parsed->intro_nodes, i), *gen_intro = smartlist_get(generated->intro_nodes, i); extend_info_t *par_info = par_intro->extend_info; extend_info_t *gen_info = gen_intro->extend_info; tt_assert(!crypto_pk_cmp_keys(gen_info->onion_key, par_info->onion_key)); tt_mem_op(gen_info->identity_digest,OP_EQ, par_info->identity_digest, DIGEST_LEN); tt_str_op(gen_info->nickname,OP_EQ, par_info->nickname); tt_assert(tor_addr_eq(&gen_info->addr, &par_info->addr)); tt_int_op(gen_info->port,OP_EQ, par_info->port); } rend_service_descriptor_free(parsed); rend_service_descriptor_free(generated); parsed = generated = NULL; done: if (descs) { for (i = 0; i < smartlist_len(descs); i++) rend_encoded_v2_service_descriptor_free_(smartlist_get(descs, i)); smartlist_free(descs); } if (parsed) rend_service_descriptor_free(parsed); if (generated) rend_service_descriptor_free(generated); if (pk1) crypto_pk_free(pk1); if (pk2) crypto_pk_free(pk2); tor_free(intro_points_encrypted); } /** Run unit tests for stats code. */ static void test_stats(void *arg) { time_t now = 1281533250; /* 2010-08-11 13:27:30 UTC */ char *s = NULL; int i; /* Start with testing exit port statistics; we shouldn't collect exit * stats without initializing them. */ (void)arg; rep_hist_note_exit_stream_opened(80); rep_hist_note_exit_bytes(80, 100, 10000); s = rep_hist_format_exit_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Initialize stats, note some streams and bytes, and generate history * string. */ rep_hist_exit_stats_init(now); rep_hist_note_exit_stream_opened(80); rep_hist_note_exit_bytes(80, 100, 10000); rep_hist_note_exit_stream_opened(443); rep_hist_note_exit_bytes(443, 100, 10000); rep_hist_note_exit_bytes(443, 100, 10000); s = rep_hist_format_exit_stats(now + 86400); tt_str_op("exit-stats-end 2010-08-12 13:27:30 (86400 s)\n" "exit-kibibytes-written 80=1,443=1,other=0\n" "exit-kibibytes-read 80=10,443=20,other=0\n" "exit-streams-opened 80=4,443=4,other=0\n",OP_EQ, s); tor_free(s); /* Add a few bytes on 10 more ports and ensure that only the top 10 * ports are contained in the history string. */ for (i = 50; i < 60; i++) { rep_hist_note_exit_bytes(i, i, i); rep_hist_note_exit_stream_opened(i); } s = rep_hist_format_exit_stats(now + 86400); tt_str_op("exit-stats-end 2010-08-12 13:27:30 (86400 s)\n" "exit-kibibytes-written 52=1,53=1,54=1,55=1,56=1,57=1,58=1," "59=1,80=1,443=1,other=1\n" "exit-kibibytes-read 52=1,53=1,54=1,55=1,56=1,57=1,58=1," "59=1,80=10,443=20,other=1\n" "exit-streams-opened 52=4,53=4,54=4,55=4,56=4,57=4,58=4," "59=4,80=4,443=4,other=4\n",OP_EQ, s); tor_free(s); /* Stop collecting stats, add some bytes, and ensure we don't generate * a history string. */ rep_hist_exit_stats_term(); rep_hist_note_exit_bytes(80, 100, 10000); s = rep_hist_format_exit_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Re-start stats, add some bytes, reset stats, and see what history we * get when observing no streams or bytes at all. */ rep_hist_exit_stats_init(now); rep_hist_note_exit_stream_opened(80); rep_hist_note_exit_bytes(80, 100, 10000); rep_hist_reset_exit_stats(now); s = rep_hist_format_exit_stats(now + 86400); tt_str_op("exit-stats-end 2010-08-12 13:27:30 (86400 s)\n" "exit-kibibytes-written other=0\n" "exit-kibibytes-read other=0\n" "exit-streams-opened other=0\n",OP_EQ, s); tor_free(s); /* Continue with testing connection statistics; we shouldn't collect * conn stats without initializing them. */ rep_hist_note_or_conn_bytes(1, 20, 400, now); s = rep_hist_format_conn_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Initialize stats, note bytes, and generate history string. */ rep_hist_conn_stats_init(now); rep_hist_note_or_conn_bytes(1, 30000, 400000, now); rep_hist_note_or_conn_bytes(1, 30000, 400000, now + 5); rep_hist_note_or_conn_bytes(2, 400000, 30000, now + 10); rep_hist_note_or_conn_bytes(2, 400000, 30000, now + 15); s = rep_hist_format_conn_stats(now + 86400); tt_str_op("conn-bi-direct 2010-08-12 13:27:30 (86400 s) 0,0,1,0\n",OP_EQ, s); tor_free(s); /* Stop collecting stats, add some bytes, and ensure we don't generate * a history string. */ rep_hist_conn_stats_term(); rep_hist_note_or_conn_bytes(2, 400000, 30000, now + 15); s = rep_hist_format_conn_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Re-start stats, add some bytes, reset stats, and see what history we * get when observing no bytes at all. */ rep_hist_conn_stats_init(now); rep_hist_note_or_conn_bytes(1, 30000, 400000, now); rep_hist_note_or_conn_bytes(1, 30000, 400000, now + 5); rep_hist_note_or_conn_bytes(2, 400000, 30000, now + 10); rep_hist_note_or_conn_bytes(2, 400000, 30000, now + 15); rep_hist_reset_conn_stats(now); s = rep_hist_format_conn_stats(now + 86400); tt_str_op("conn-bi-direct 2010-08-12 13:27:30 (86400 s) 0,0,0,0\n",OP_EQ, s); tor_free(s); /* Continue with testing buffer statistics; we shouldn't collect buffer * stats without initializing them. */ rep_hist_add_buffer_stats(2.0, 2.0, 20); s = rep_hist_format_buffer_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Initialize stats, add statistics for a single circuit, and generate * the history string. */ rep_hist_buffer_stats_init(now); rep_hist_add_buffer_stats(2.0, 2.0, 20); s = rep_hist_format_buffer_stats(now + 86400); tt_str_op("cell-stats-end 2010-08-12 13:27:30 (86400 s)\n" "cell-processed-cells 20,0,0,0,0,0,0,0,0,0\n" "cell-queued-cells 2.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00," "0.00,0.00\n" "cell-time-in-queue 2,0,0,0,0,0,0,0,0,0\n" "cell-circuits-per-decile 1\n",OP_EQ, s); tor_free(s); /* Add nineteen more circuit statistics to the one that's already in the * history to see that the math works correctly. */ for (i = 21; i < 30; i++) rep_hist_add_buffer_stats(2.0, 2.0, i); for (i = 20; i < 30; i++) rep_hist_add_buffer_stats(3.5, 3.5, i); s = rep_hist_format_buffer_stats(now + 86400); tt_str_op("cell-stats-end 2010-08-12 13:27:30 (86400 s)\n" "cell-processed-cells 29,28,27,26,25,24,23,22,21,20\n" "cell-queued-cells 2.75,2.75,2.75,2.75,2.75,2.75,2.75,2.75," "2.75,2.75\n" "cell-time-in-queue 3,3,3,3,3,3,3,3,3,3\n" "cell-circuits-per-decile 2\n",OP_EQ, s); tor_free(s); /* Stop collecting stats, add statistics for one circuit, and ensure we * don't generate a history string. */ rep_hist_buffer_stats_term(); rep_hist_add_buffer_stats(2.0, 2.0, 20); s = rep_hist_format_buffer_stats(now + 86400); tt_ptr_op(s, OP_EQ, NULL); /* Re-start stats, add statistics for one circuit, reset stats, and make * sure that the history has all zeros. */ rep_hist_buffer_stats_init(now); rep_hist_add_buffer_stats(2.0, 2.0, 20); rep_hist_reset_buffer_stats(now); s = rep_hist_format_buffer_stats(now + 86400); tt_str_op("cell-stats-end 2010-08-12 13:27:30 (86400 s)\n" "cell-processed-cells 0,0,0,0,0,0,0,0,0,0\n" "cell-queued-cells 0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00," "0.00,0.00\n" "cell-time-in-queue 0,0,0,0,0,0,0,0,0,0\n" "cell-circuits-per-decile 0\n",OP_EQ, s); done: tor_free(s); } #define ENT(name) \ { #name, test_ ## name , 0, NULL, NULL } #define FORK(name) \ { #name, test_ ## name , TT_FORK, NULL, NULL } static struct testcase_t test_array[] = { ENT(onion_handshake), { "bad_onion_handshake", test_bad_onion_handshake, 0, NULL, NULL }, ENT(onion_queues), { "ntor_handshake", test_ntor_handshake, 0, NULL, NULL }, { "fast_handshake", test_fast_handshake, 0, NULL, NULL }, FORK(circuit_timeout), FORK(rend_fns), FORK(stats), END_OF_TESTCASES }; struct testgroup_t testgroups[] = { { "", test_array }, { "accounting/", accounting_tests }, { "addr/", addr_tests }, { "address/", address_tests }, { "address_set/", address_set_tests }, { "bridges/", bridges_tests }, { "buffer/", buffer_tests }, { "bwmgt/", bwmgt_tests }, { "cellfmt/", cell_format_tests }, { "cellqueue/", cell_queue_tests }, { "channel/", channel_tests }, { "channelpadding/", channelpadding_tests }, { "channeltls/", channeltls_tests }, { "checkdir/", checkdir_tests }, { "circuitbuild/", circuitbuild_tests }, { "circuitlist/", circuitlist_tests }, { "circuitmux/", circuitmux_tests }, { "circuituse/", circuituse_tests }, { "circuitstats/", circuitstats_tests }, { "compat/libevent/", compat_libevent_tests }, { "config/", config_tests }, { "connection/", connection_tests }, { "conscache/", conscache_tests }, { "consdiff/", consdiff_tests }, { "consdiffmgr/", consdiffmgr_tests }, { "container/", container_tests }, { "control/", controller_tests }, { "control/event/", controller_event_tests }, { "crypto/", crypto_tests }, { "crypto/ope/", crypto_ope_tests }, #ifdef ENABLE_OPENSSL { "crypto/openssl/", crypto_openssl_tests }, #endif { "crypto/pem/", pem_tests }, { "dir/", dir_tests }, { "dir_handle_get/", dir_handle_get_tests }, { "dir/md/", microdesc_tests }, { "dir/voting-schedule/", voting_schedule_tests }, { "dos/", dos_tests }, { "entryconn/", entryconn_tests }, { "entrynodes/", entrynodes_tests }, { "guardfraction/", guardfraction_tests }, { "extorport/", extorport_tests }, { "geoip/", geoip_tests }, { "legacy_hs/", hs_tests }, { "hs_cache/", hs_cache }, { "hs_cell/", hs_cell_tests }, { "hs_common/", hs_common_tests }, { "hs_config/", hs_config_tests }, { "hs_control/", hs_control_tests }, { "hs_descriptor/", hs_descriptor }, { "hs_ntor/", hs_ntor_tests }, { "hs_service/", hs_service_tests }, { "hs_client/", hs_client_tests }, { "hs_intropoint/", hs_intropoint_tests }, { "introduce/", introduce_tests }, { "keypin/", keypin_tests }, { "link-handshake/", link_handshake_tests }, { "mainloop/", mainloop_tests }, { "nodelist/", nodelist_tests }, { "oom/", oom_tests }, { "oos/", oos_tests }, { "options/", options_tests }, { "periodic-event/" , periodic_event_tests }, { "policy/" , policy_tests }, { "procmon/", procmon_tests }, { "proto/http/", proto_http_tests }, { "proto/misc/", proto_misc_tests }, { "protover/", protover_tests }, { "pt/", pt_tests }, { "relay/" , relay_tests }, { "relaycell/", relaycell_tests }, { "relaycrypt/", relaycrypt_tests }, { "rend_cache/", rend_cache_tests }, { "replaycache/", replaycache_tests }, { "router/", router_tests }, { "routerkeys/", routerkeys_tests }, { "routerlist/", routerlist_tests }, { "routerset/" , routerset_tests }, { "scheduler/", scheduler_tests }, { "socks/", socks_tests }, { "shared-random/", sr_tests }, { "status/" , status_tests }, { "storagedir/", storagedir_tests }, { "tortls/", tortls_tests }, #ifndef ENABLE_NSS { "tortls/openssl/", tortls_openssl_tests }, #endif { "tortls/x509/", x509_tests }, { "util/", util_tests }, { "util/format/", util_format_tests }, { "util/logging/", logging_tests }, { "util/process/", util_process_tests }, { "util/thread/", thread_tests }, { "util/handle/", handle_tests }, { "dns/", dns_tests }, END_OF_GROUPS };