diff options
Diffstat (limited to 'src/test/test_hs_ob.c')
| -rw-r--r-- | src/test/test_hs_ob.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/src/test/test_hs_ob.c b/src/test/test_hs_ob.c new file mode 100644 index 0000000000..7f40187b5f --- /dev/null +++ b/src/test/test_hs_ob.c @@ -0,0 +1,268 @@ +/* Copyright (c) 2020, The Tor Project, Inc. */ +/* See LICENSE for licensing information */ + +/** + * \file test_hs_ob.c + * \brief Test hidden service onion balance functionality. + */ + +#define CONFIG_PRIVATE +#define HS_SERVICE_PRIVATE +#define HS_OB_PRIVATE + +#include "test/test.h" +#include "test/test_helpers.h" +#include "test/log_test_helpers.h" + +#include "app/config/config.h" +#include "feature/hs/hs_config.h" +#include "feature/hs/hs_ob.h" +#include "feature/hs/hs_service.h" +#include "feature/nodelist/networkstatus.h" +#include "feature/nodelist/networkstatus_st.h" + +static ed25519_keypair_t onion_addr_kp_1; +static char onion_addr_1[HS_SERVICE_ADDR_LEN_BASE32 + 1]; + +static ed25519_keypair_t onion_addr_kp_2; +static char onion_addr_2[HS_SERVICE_ADDR_LEN_BASE32 + 1]; + +static bool config_is_good = true; + +static int +helper_tor_config(const char *conf) +{ + int ret = -1; + or_options_t *options = helper_parse_options(conf); + tt_assert(options); + ret = hs_config_service_all(options, 0); + done: + or_options_free(options); + return ret; +} + +static networkstatus_t mock_ns; + +static networkstatus_t * +mock_networkstatus_get_live_consensus(time_t now) +{ + (void) now; + return &mock_ns; +} + +static char * +mock_read_file_to_str(const char *filename, int flags, struct stat *stat_out) +{ + char *ret = NULL; + + (void) flags; + (void) stat_out; + + if (!strcmp(filename, get_fname("hs3" PATH_SEPARATOR "ob_config"))) { + if (config_is_good) { + tor_asprintf(&ret, "MasterOnionAddress %s.onion\n" + "MasterOnionAddress %s.onion\n", + onion_addr_1, onion_addr_2); + } else { + tor_asprintf(&ret, "MasterOnionAddress JUNKJUNKJUNK.onion\n" + "UnknownOption BLAH\n"); + } + goto done; + } + + done: + return ret; +} + +static void +test_parse_config_file(void *arg) +{ + int ret; + char *conf = NULL; + const ed25519_public_key_t *pkey; + + (void) arg; + + hs_init(); + + MOCK(read_file_to_str, mock_read_file_to_str); + +#define fmt_conf \ + "HiddenServiceDir %s\n" \ + "HiddenServicePort 22\n" \ + "HiddenServiceOnionBalanceInstance 1\n" + tor_asprintf(&conf, fmt_conf, get_fname("hs3")); +#undef fmt_conf + + /* Build the OB frontend onion addresses. */ + ed25519_keypair_generate(&onion_addr_kp_1, 0); + hs_build_address(&onion_addr_kp_1.pubkey, HS_VERSION_THREE, onion_addr_1); + ed25519_keypair_generate(&onion_addr_kp_2, 0); + hs_build_address(&onion_addr_kp_2.pubkey, HS_VERSION_THREE, onion_addr_2); + + ret = helper_tor_config(conf); + tor_free(conf); + tt_int_op(ret, OP_EQ, 0); + + /* Load the keys for the service. After that, the v3 service should be + * registered in the global map and we'll be able to access it. */ + tt_int_op(get_hs_service_staging_list_size(), OP_EQ, 1); + hs_service_load_all_keys(); + tt_int_op(get_hs_service_map_size(), OP_EQ, 1); + const hs_service_t *s = get_first_service(); + tt_assert(s); + tt_assert(s->config.ob_master_pubkeys); + tt_assert(hs_ob_service_is_instance(s)); + tt_assert(smartlist_len(s->config.ob_master_pubkeys) == 2); + + /* Test the public keys we've added. */ + pkey = smartlist_get(s->config.ob_master_pubkeys, 0); + tt_mem_op(&onion_addr_kp_1.pubkey, OP_EQ, pkey, ED25519_PUBKEY_LEN); + pkey = smartlist_get(s->config.ob_master_pubkeys, 1); + tt_mem_op(&onion_addr_kp_2.pubkey, OP_EQ, pkey, ED25519_PUBKEY_LEN); + + done: + hs_free_all(); + + UNMOCK(read_file_to_str); +} + +static void +test_parse_config_file_bad(void *arg) +{ + int ret; + char *conf = NULL; + + (void) arg; + + hs_init(); + + MOCK(read_file_to_str, mock_read_file_to_str); + + /* Indicate mock_read_file_to_str() to use the bad config. */ + config_is_good = false; + +#define fmt_conf \ + "HiddenServiceDir %s\n" \ + "HiddenServicePort 22\n" \ + "HiddenServiceOnionBalanceInstance 1\n" + tor_asprintf(&conf, fmt_conf, get_fname("hs3")); +#undef fmt_conf + + setup_full_capture_of_logs(LOG_INFO); + ret = helper_tor_config(conf); + tor_free(conf); + tt_int_op(ret, OP_EQ, -1); + expect_log_msg_containing("OnionBalance: MasterOnionAddress " + "JUNKJUNKJUNK.onion is invalid"); + expect_log_msg_containing("Found unrecognized option \'UnknownOption\'; " + "saving it."); + teardown_capture_of_logs(); + + done: + hs_free_all(); + + UNMOCK(read_file_to_str); +} + +static void +test_get_subcredentials(void *arg) +{ + int ret; + hs_service_t *service = NULL; + hs_service_config_t config; + hs_subcredential_t *subcreds = NULL; + + (void) arg; + + MOCK(networkstatus_get_live_consensus, + mock_networkstatus_get_live_consensus); + + /* Setup consensus with proper time so we can compute the time period. */ + 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); + + config.ob_master_pubkeys = smartlist_new(); + tt_assert(config.ob_master_pubkeys); + + /* Set up an instance */ + service = tor_malloc_zero(sizeof(hs_service_t)); + service->config = config; + /* Setup the service descriptors */ + service->desc_current = service_descriptor_new(); + service->desc_next = service_descriptor_new(); + + /* First try to compute subcredentials but with no OB keys. Make sure that + * subcreds get NULLed. To do this check we first poison subcreds. */ + subcreds = (void*)999; + tt_ptr_op(subcreds, OP_NE, NULL); + size_t num = compute_subcredentials(service, &subcreds); + tt_ptr_op(subcreds, OP_EQ, NULL); + + /* Generate a keypair to add to the OB keys list. */ + ed25519_keypair_generate(&onion_addr_kp_1, 0); + smartlist_add(config.ob_master_pubkeys, &onion_addr_kp_1.pubkey); + + /* Set up the instance subcredentials */ + char current_subcred[SUBCRED_LEN]; + char next_subcred[SUBCRED_LEN]; + memset(current_subcred, 'C', SUBCRED_LEN); + memset(next_subcred, 'N', SUBCRED_LEN); + memcpy(service->desc_current->desc->subcredential.subcred, current_subcred, + SUBCRED_LEN); + memcpy(service->desc_next->desc->subcredential.subcred, next_subcred, + SUBCRED_LEN); + + /* See that subcreds are computed properly */ + num = compute_subcredentials(service, &subcreds); + /* 5 subcredentials: 3 for the frontend, 2 for the instance */ + tt_uint_op(num, OP_EQ, 5); + tt_ptr_op(subcreds, OP_NE, NULL); + + /* Validate the subcredentials we just got. We'll build them oursevles with + * the right time period steps and compare. */ + const uint64_t tp = hs_get_time_period_num(0); + const int steps[3] = {0, -1, 1}; + + unsigned int i; + for (i = 0; i < 3; i++) { + hs_subcredential_t subcredential; + ed25519_public_key_t blinded_pubkey; + hs_build_blinded_pubkey(&onion_addr_kp_1.pubkey, NULL, 0, tp + steps[i], + &blinded_pubkey); + hs_get_subcredential(&onion_addr_kp_1.pubkey, &blinded_pubkey, + &subcredential); + tt_mem_op(subcreds[i].subcred, OP_EQ, subcredential.subcred, + SUBCRED_LEN); + } + + tt_mem_op(subcreds[i++].subcred, OP_EQ, current_subcred, SUBCRED_LEN); + tt_mem_op(subcreds[i++].subcred, OP_EQ, next_subcred, SUBCRED_LEN); + + done: + tor_free(subcreds); + + smartlist_free(config.ob_master_pubkeys); + if (service) { + memset(&service->config, 0, sizeof(hs_service_config_t)); + hs_service_free(service); + } + + UNMOCK(networkstatus_get_live_consensus); +} + +struct testcase_t hs_ob_tests[] = { + { "parse_config_file", test_parse_config_file, TT_FORK, + NULL, NULL }, + { "parse_config_file_bad", test_parse_config_file_bad, TT_FORK, + NULL, NULL }, + + { "get_subcredentials", test_get_subcredentials, TT_FORK, + NULL, NULL }, + + END_OF_TESTCASES +}; |