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- /* Copyright (c) 2016-2018, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- #define SHARED_RANDOM_PRIVATE
- #define SHARED_RANDOM_STATE_PRIVATE
- #define CONFIG_PRIVATE
- #define DIRVOTE_PRIVATE
- #include "core/or/or.h"
- #include "test/test.h"
- #include "app/config/config.h"
- #include "lib/crypt_ops/crypto_rand.h"
- #include "feature/dirauth/dirvote.h"
- #include "feature/dirauth/shared_random.h"
- #include "feature/dirauth/shared_random_state.h"
- #include "test/log_test_helpers.h"
- #include "feature/nodelist/networkstatus.h"
- #include "feature/relay/router.h"
- #include "feature/relay/routerkeys.h"
- #include "feature/nodelist/authcert.h"
- #include "feature/nodelist/dirlist.h"
- #include "feature/dirparse/authcert_parse.h"
- #include "feature/hs_common/shared_random_client.h"
- #include "feature/dircommon/voting_schedule.h"
- #include "feature/dirclient/dir_server_st.h"
- #include "feature/nodelist/networkstatus_st.h"
- #include "app/config/or_state_st.h"
- #ifdef HAVE_SYS_STAT_H
- #include <sys/stat.h>
- #endif
- #ifdef _WIN32
- /* For mkdir */
- #include <direct.h>
- #endif
- static authority_cert_t *mock_cert;
- static authority_cert_t *
- get_my_v3_authority_cert_m(void)
- {
- tor_assert(mock_cert);
- return mock_cert;
- }
- static dir_server_t ds;
- static dir_server_t *
- trusteddirserver_get_by_v3_auth_digest_m(const char *digest)
- {
- (void) digest;
- /* The shared random code only need to know if a valid pointer to a dir
- * server object has been found so this is safe because it won't use the
- * pointer at all never. */
- return &ds;
- }
- /* Setup a minimal dirauth environment by initializing the SR state and
- * making sure the options are set to be an authority directory. */
- static void
- init_authority_state(void)
- {
- MOCK(get_my_v3_authority_cert, get_my_v3_authority_cert_m);
- or_options_t *options = get_options_mutable();
- mock_cert = authority_cert_parse_from_string(AUTHORITY_CERT_1, NULL);
- tt_assert(mock_cert);
- options->AuthoritativeDir = 1;
- tt_int_op(load_ed_keys(options, time(NULL)), OP_GE, 0);
- sr_state_init(0, 0);
- /* It's possible a commit has been generated in our state depending on
- * the phase we are currently in which uses "now" as the starting
- * timestamp. Delete it before we do any testing below. */
- sr_state_delete_commits();
- done:
- UNMOCK(get_my_v3_authority_cert);
- }
- static void
- test_get_sr_protocol_phase(void *arg)
- {
- time_t the_time;
- sr_phase_t phase;
- int retval;
- (void) arg;
- /* Initialize SR state */
- init_authority_state();
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 23:59:00 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_REVEAL);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 00:00:00 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_COMMIT);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 00:00:01 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_COMMIT);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 11:59:00 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_COMMIT);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 12:00:00 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_REVEAL);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 12:00:01 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_REVEAL);
- }
- {
- retval = parse_rfc1123_time("Wed, 20 Apr 2015 13:00:00 UTC", &the_time);
- tt_int_op(retval, OP_EQ, 0);
- phase = get_sr_protocol_phase(the_time);
- tt_int_op(phase, OP_EQ, SR_PHASE_REVEAL);
- }
- done:
- ;
- }
- static networkstatus_t mock_consensus;
- /* Mock function to immediately return our local 'mock_consensus'. */
- static networkstatus_t *
- mock_networkstatus_get_live_consensus(time_t now)
- {
- (void) now;
- return &mock_consensus;
- }
- static void
- test_get_state_valid_until_time(void *arg)
- {
- time_t current_time;
- time_t valid_until_time;
- char tbuf[ISO_TIME_LEN + 1];
- int retval;
- (void) arg;
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
- &mock_consensus.fresh_until);
- tt_int_op(retval, OP_EQ, 0);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- &mock_consensus.valid_after);
- tt_int_op(retval, OP_EQ, 0);
- {
- /* Get the valid until time if called at 00:00:01 */
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:01 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- valid_until_time = get_state_valid_until_time(current_time);
- /* Compare it with the correct result */
- format_iso_time(tbuf, valid_until_time);
- tt_str_op("2015-04-21 00:00:00", OP_EQ, tbuf);
- }
- {
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 19:22:00 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- valid_until_time = get_state_valid_until_time(current_time);
- format_iso_time(tbuf, valid_until_time);
- tt_str_op("2015-04-21 00:00:00", OP_EQ, tbuf);
- }
- {
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 23:59:00 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- valid_until_time = get_state_valid_until_time(current_time);
- format_iso_time(tbuf, valid_until_time);
- tt_str_op("2015-04-21 00:00:00", OP_EQ, tbuf);
- }
- {
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- valid_until_time = get_state_valid_until_time(current_time);
- format_iso_time(tbuf, valid_until_time);
- tt_str_op("2015-04-21 00:00:00", OP_EQ, tbuf);
- }
- done:
- UNMOCK(networkstatus_get_live_consensus);
- }
- /** Test the function that calculates the start time of the current SRV
- * protocol run. */
- static void
- test_get_start_time_of_current_run(void *arg)
- {
- int retval;
- char tbuf[ISO_TIME_LEN + 1];
- time_t current_time, run_start_time;
- (void) arg;
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
- &mock_consensus.fresh_until);
- tt_int_op(retval, OP_EQ, 0);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- &mock_consensus.valid_after);
- tt_int_op(retval, OP_EQ, 0);
- {
- /* Get start time if called at 00:00:01 */
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:01 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- run_start_time = sr_state_get_start_time_of_current_protocol_run();
- /* Compare it with the correct result */
- format_iso_time(tbuf, run_start_time);
- tt_str_op("2015-04-20 00:00:00", OP_EQ, tbuf);
- }
- {
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 23:59:59 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- run_start_time = sr_state_get_start_time_of_current_protocol_run();
- /* Compare it with the correct result */
- format_iso_time(tbuf, run_start_time);
- tt_str_op("2015-04-20 00:00:00", OP_EQ, tbuf);
- }
- {
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- run_start_time = sr_state_get_start_time_of_current_protocol_run();
- /* Compare it with the correct result */
- format_iso_time(tbuf, run_start_time);
- tt_str_op("2015-04-20 00:00:00", OP_EQ, tbuf);
- }
- {
- /* We want the local time to be past midnight, but the current consensus to
- * have valid-after 23:00 (e.g. this can happen if we fetch a new consensus
- * at 00:08 before dircaches have a chance to get the midnight consensus).
- *
- * Basically, we want to cause a desynch between ns->valid_after (23:00)
- * and the voting_schedule.interval_starts (01:00), to make sure that
- * sr_state_get_start_time_of_current_protocol_run() handles it gracefully:
- * It should actually follow the local consensus time and not the voting
- * schedule (which is designed for authority voting purposes). */
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- &mock_consensus.fresh_until);
- tt_int_op(retval, OP_EQ, 0);
- retval = parse_rfc1123_time("Mon, 19 Apr 2015 23:00:00 UTC",
- &mock_consensus.valid_after);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:08:00 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- update_approx_time(current_time);
- voting_schedule_recalculate_timing(get_options(), current_time);
- run_start_time = sr_state_get_start_time_of_current_protocol_run();
- /* Compare it with the correct result */
- format_iso_time(tbuf, run_start_time);
- tt_str_op("2015-04-19 00:00:00", OP_EQ, tbuf);
- /* Check that voting_schedule.interval_starts is at 01:00 (see above) */
- time_t interval_starts = voting_schedule_get_next_valid_after_time();
- format_iso_time(tbuf, interval_starts);
- tt_str_op("2015-04-20 01:00:00", OP_EQ, tbuf);
- }
- /* Next test is testing it without a consensus to use the testing voting
- * interval . */
- UNMOCK(networkstatus_get_live_consensus);
- /* Now let's alter the voting schedule and check the correctness of the
- * function. Voting interval of 10 seconds, means that an SRV protocol run
- * takes 10 seconds * 24 rounds = 4 mins */
- {
- or_options_t *options = get_options_mutable();
- options->V3AuthVotingInterval = 10;
- options->TestingV3AuthInitialVotingInterval = 10;
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:15:32 UTC",
- ¤t_time);
- tt_int_op(retval, OP_EQ, 0);
- voting_schedule_recalculate_timing(get_options(), current_time);
- run_start_time = sr_state_get_start_time_of_current_protocol_run();
- /* Compare it with the correct result */
- format_iso_time(tbuf, run_start_time);
- tt_str_op("2015-04-20 00:12:00", OP_EQ, tbuf);
- }
- done:
- ;
- }
- /** Do some rudimentary consistency checks between the functions that
- * understand the shared random protocol schedule */
- static void
- test_get_start_time_functions(void *arg)
- {
- (void) arg;
- int retval;
- MOCK(networkstatus_get_live_consensus,
- mock_networkstatus_get_live_consensus);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
- &mock_consensus.fresh_until);
- tt_int_op(retval, OP_EQ, 0);
- retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
- &mock_consensus.valid_after);
- tt_int_op(retval, OP_EQ, 0);
- time_t now = mock_consensus.valid_after;
- voting_schedule_recalculate_timing(get_options(), now);
- time_t start_time_of_protocol_run =
- sr_state_get_start_time_of_current_protocol_run();
- tt_assert(start_time_of_protocol_run);
- /* Check that the round start time of the beginning of the run, is itself */
- tt_int_op(get_start_time_of_current_round(), OP_EQ,
- start_time_of_protocol_run);
- done:
- UNMOCK(networkstatus_get_live_consensus);
- }
- static void
- test_get_sr_protocol_duration(void *arg)
- {
- (void) arg;
- /* Check that by default an SR phase is 12 hours */
- tt_int_op(sr_state_get_phase_duration(), OP_EQ, 12*60*60);
- tt_int_op(sr_state_get_protocol_run_duration(), OP_EQ, 24*60*60);
- /* Now alter the voting interval and check that the SR phase is 2 mins long
- * if voting happens every 10 seconds (10*12 seconds = 2 mins) */
- or_options_t *options = get_options_mutable();
- options->V3AuthVotingInterval = 10;
- tt_int_op(sr_state_get_phase_duration(), OP_EQ, 2*60);
- tt_int_op(sr_state_get_protocol_run_duration(), OP_EQ, 4*60);
- done: ;
- }
- /* In this test we are going to generate a sr_commit_t object and validate
- * it. We first generate our values, and then we parse them as if they were
- * received from the network. After we parse both the commit and the reveal,
- * we verify that they indeed match. */
- static void
- test_sr_commit(void *arg)
- {
- authority_cert_t *auth_cert = NULL;
- time_t now = time(NULL);
- sr_commit_t *our_commit = NULL;
- smartlist_t *args = smartlist_new();
- sr_commit_t *parsed_commit = NULL;
- (void) arg;
- { /* Setup a minimal dirauth environment for this test */
- or_options_t *options = get_options_mutable();
- auth_cert = authority_cert_parse_from_string(AUTHORITY_CERT_1, NULL);
- tt_assert(auth_cert);
- options->AuthoritativeDir = 1;
- tt_int_op(load_ed_keys(options, time(NULL)), OP_GE, 0);
- }
- /* Generate our commit object and validate it has the appropriate field
- * that we can then use to build a representation that we'll find in a
- * vote coming from the network. */
- {
- sr_commit_t test_commit;
- our_commit = sr_generate_our_commit(now, auth_cert);
- tt_assert(our_commit);
- /* Default and only supported algorithm for now. */
- tt_assert(our_commit->alg == DIGEST_SHA3_256);
- /* We should have a reveal value. */
- tt_assert(commit_has_reveal_value(our_commit));
- /* We should have a random value. */
- tt_assert(!tor_mem_is_zero((char *) our_commit->random_number,
- sizeof(our_commit->random_number)));
- /* Commit and reveal timestamp should be the same. */
- tt_u64_op(our_commit->commit_ts, OP_EQ, our_commit->reveal_ts);
- /* We should have a hashed reveal. */
- tt_assert(!tor_mem_is_zero(our_commit->hashed_reveal,
- sizeof(our_commit->hashed_reveal)));
- /* Do we have a valid encoded commit and reveal. Note the following only
- * tests if the generated values are correct. Their could be a bug in
- * the decode function but we test them separately. */
- tt_int_op(0, OP_EQ, reveal_decode(our_commit->encoded_reveal,
- &test_commit));
- tt_int_op(0, OP_EQ, commit_decode(our_commit->encoded_commit,
- &test_commit));
- tt_int_op(0, OP_EQ, verify_commit_and_reveal(our_commit));
- }
- /* Let's make sure our verify commit and reveal function works. We'll
- * make it fail a bit with known failure case. */
- {
- /* Copy our commit so we don't alter it for the rest of testing. */
- sr_commit_t test_commit;
- memcpy(&test_commit, our_commit, sizeof(test_commit));
- /* Timestamp MUST match. */
- test_commit.commit_ts = test_commit.reveal_ts - 42;
- setup_full_capture_of_logs(LOG_WARN);
- tt_int_op(-1, OP_EQ, verify_commit_and_reveal(&test_commit));
- expect_log_msg_containing("doesn't match reveal timestamp");
- teardown_capture_of_logs();
- memcpy(&test_commit, our_commit, sizeof(test_commit));
- tt_int_op(0, OP_EQ, verify_commit_and_reveal(&test_commit));
- /* Hashed reveal must match the H(encoded_reveal). */
- memset(test_commit.hashed_reveal, 'X',
- sizeof(test_commit.hashed_reveal));
- setup_full_capture_of_logs(LOG_WARN);
- tt_int_op(-1, OP_EQ, verify_commit_and_reveal(&test_commit));
- expect_single_log_msg_containing("doesn't match the commit value");
- teardown_capture_of_logs();
- memcpy(&test_commit, our_commit, sizeof(test_commit));
- tt_int_op(0, OP_EQ, verify_commit_and_reveal(&test_commit));
- }
- /* We'll build a list of values from our commit that our parsing function
- * takes from a vote line and see if we can parse it correctly. */
- {
- smartlist_add_strdup(args, "1");
- smartlist_add_strdup(args,
- crypto_digest_algorithm_get_name(our_commit->alg));
- smartlist_add_strdup(args, sr_commit_get_rsa_fpr(our_commit));
- smartlist_add_strdup(args, our_commit->encoded_commit);
- smartlist_add_strdup(args, our_commit->encoded_reveal);
- parsed_commit = sr_parse_commit(args);
- tt_assert(parsed_commit);
- /* That parsed commit should be _EXACTLY_ like our original commit (we
- * have to explicitly set the valid flag though). */
- parsed_commit->valid = 1;
- tt_mem_op(parsed_commit, OP_EQ, our_commit, sizeof(*parsed_commit));
- /* Cleanup */
- }
- done:
- teardown_capture_of_logs();
- SMARTLIST_FOREACH(args, char *, cp, tor_free(cp));
- smartlist_free(args);
- sr_commit_free(our_commit);
- sr_commit_free(parsed_commit);
- authority_cert_free(auth_cert);
- }
- /* Test the encoding and decoding function for commit and reveal values. */
- static void
- test_encoding(void *arg)
- {
- (void) arg;
- int ret;
- /* Random number is 32 bytes. */
- char raw_rand[32];
- time_t ts = 1454333590;
- char hashed_rand[DIGEST256_LEN], hashed_reveal[DIGEST256_LEN];
- sr_commit_t parsed_commit;
- /* Those values were generated by sr_commit_calc_ref.py where the random
- * value is 32 'A' and timestamp is the one in ts. */
- static const char *encoded_reveal =
- "AAAAAFavXpZJxbwTupvaJCTeIUCQmOPxAMblc7ChL5H2nZKuGchdaA==";
- static const char *encoded_commit =
- "AAAAAFavXpbkBMzMQG7aNoaGLFNpm2Wkk1ozXhuWWqL//GynltxVAg==";
- /* Set up our raw random bytes array. */
- memset(raw_rand, 'A', sizeof(raw_rand));
- /* Hash random number because we don't expose bytes of the RNG. */
- ret = crypto_digest256(hashed_rand, raw_rand,
- sizeof(raw_rand), SR_DIGEST_ALG);
- tt_int_op(0, OP_EQ, ret);
- /* Hash reveal value. */
- tt_int_op(SR_REVEAL_BASE64_LEN, OP_EQ, strlen(encoded_reveal));
- ret = crypto_digest256(hashed_reveal, encoded_reveal,
- strlen(encoded_reveal), SR_DIGEST_ALG);
- tt_int_op(0, OP_EQ, ret);
- tt_int_op(SR_COMMIT_BASE64_LEN, OP_EQ, strlen(encoded_commit));
- /* Test our commit/reveal decode functions. */
- {
- /* Test the reveal encoded value. */
- tt_int_op(0, OP_EQ, reveal_decode(encoded_reveal, &parsed_commit));
- tt_u64_op(ts, OP_EQ, parsed_commit.reveal_ts);
- tt_mem_op(hashed_rand, OP_EQ, parsed_commit.random_number,
- sizeof(hashed_rand));
- /* Test the commit encoded value. */
- memset(&parsed_commit, 0, sizeof(parsed_commit));
- tt_int_op(0, OP_EQ, commit_decode(encoded_commit, &parsed_commit));
- tt_u64_op(ts, OP_EQ, parsed_commit.commit_ts);
- tt_mem_op(encoded_commit, OP_EQ, parsed_commit.encoded_commit,
- sizeof(parsed_commit.encoded_commit));
- tt_mem_op(hashed_reveal, OP_EQ, parsed_commit.hashed_reveal,
- sizeof(hashed_reveal));
- }
- /* Test our commit/reveal encode functions. */
- {
- /* Test the reveal encode. */
- char encoded[SR_REVEAL_BASE64_LEN + 1];
- parsed_commit.reveal_ts = ts;
- memcpy(parsed_commit.random_number, hashed_rand,
- sizeof(parsed_commit.random_number));
- ret = reveal_encode(&parsed_commit, encoded, sizeof(encoded));
- tt_int_op(SR_REVEAL_BASE64_LEN, OP_EQ, ret);
- tt_mem_op(encoded_reveal, OP_EQ, encoded, strlen(encoded_reveal));
- }
- {
- /* Test the commit encode. */
- char encoded[SR_COMMIT_BASE64_LEN + 1];
- parsed_commit.commit_ts = ts;
- memcpy(parsed_commit.hashed_reveal, hashed_reveal,
- sizeof(parsed_commit.hashed_reveal));
- ret = commit_encode(&parsed_commit, encoded, sizeof(encoded));
- tt_int_op(SR_COMMIT_BASE64_LEN, OP_EQ, ret);
- tt_mem_op(encoded_commit, OP_EQ, encoded, strlen(encoded_commit));
- }
- done:
- ;
- }
- /** Setup some SRVs in our SR state. If <b>also_current</b> is set, then set
- * both current and previous SRVs.
- * Helper of test_vote() and test_sr_compute_srv(). */
- static void
- test_sr_setup_srv(int also_current)
- {
- sr_srv_t *srv = tor_malloc_zero(sizeof(sr_srv_t));
- srv->num_reveals = 42;
- memcpy(srv->value,
- "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ",
- sizeof(srv->value));
- sr_state_set_previous_srv(srv);
- if (also_current) {
- srv = tor_malloc_zero(sizeof(sr_srv_t));
- srv->num_reveals = 128;
- memcpy(srv->value,
- "NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN",
- sizeof(srv->value));
- sr_state_set_current_srv(srv);
- }
- }
- /* Test anything that has to do with SR protocol and vote. */
- static void
- test_vote(void *arg)
- {
- int ret;
- time_t now = time(NULL);
- sr_commit_t *our_commit = NULL;
- (void) arg;
- MOCK(trusteddirserver_get_by_v3_auth_digest,
- trusteddirserver_get_by_v3_auth_digest_m);
- { /* Setup a minimal dirauth environment for this test */
- init_authority_state();
- /* Set ourself in reveal phase so we can parse the reveal value in the
- * vote as well. */
- set_sr_phase(SR_PHASE_REVEAL);
- }
- /* Generate our commit object and validate it has the appropriate field
- * that we can then use to build a representation that we'll find in a
- * vote coming from the network. */
- {
- sr_commit_t *saved_commit;
- our_commit = sr_generate_our_commit(now, mock_cert);
- tt_assert(our_commit);
- sr_state_add_commit(our_commit);
- /* Make sure it's there. */
- saved_commit = sr_state_get_commit(our_commit->rsa_identity);
- tt_assert(saved_commit);
- }
- /* Also setup the SRVs */
- test_sr_setup_srv(1);
- { /* Now test the vote generation */
- smartlist_t *chunks = smartlist_new();
- smartlist_t *tokens = smartlist_new();
- /* Get our vote line and validate it. */
- char *lines = sr_get_string_for_vote();
- tt_assert(lines);
- /* Split the lines. We expect 2 here. */
- ret = smartlist_split_string(chunks, lines, "\n", SPLIT_IGNORE_BLANK, 0);
- tt_int_op(ret, OP_EQ, 4);
- tt_str_op(smartlist_get(chunks, 0), OP_EQ, "shared-rand-participate");
- /* Get our commitment line and will validate it against our commit. The
- * format is as follow:
- * "shared-rand-commitment" SP version SP algname SP identity
- * SP COMMIT [SP REVEAL] NL
- */
- char *commit_line = smartlist_get(chunks, 1);
- tt_assert(commit_line);
- ret = smartlist_split_string(tokens, commit_line, " ", 0, 0);
- tt_int_op(ret, OP_EQ, 6);
- tt_str_op(smartlist_get(tokens, 0), OP_EQ, "shared-rand-commit");
- tt_str_op(smartlist_get(tokens, 1), OP_EQ, "1");
- tt_str_op(smartlist_get(tokens, 2), OP_EQ,
- crypto_digest_algorithm_get_name(DIGEST_SHA3_256));
- char digest[DIGEST_LEN];
- base16_decode(digest, sizeof(digest), smartlist_get(tokens, 3),
- HEX_DIGEST_LEN);
- tt_mem_op(digest, OP_EQ, our_commit->rsa_identity, sizeof(digest));
- tt_str_op(smartlist_get(tokens, 4), OP_EQ, our_commit->encoded_commit);
- tt_str_op(smartlist_get(tokens, 5), OP_EQ, our_commit->encoded_reveal)
- ;
- /* Finally, does this vote line creates a valid commit object? */
- smartlist_t *args = smartlist_new();
- smartlist_add(args, smartlist_get(tokens, 1));
- smartlist_add(args, smartlist_get(tokens, 2));
- smartlist_add(args, smartlist_get(tokens, 3));
- smartlist_add(args, smartlist_get(tokens, 4));
- smartlist_add(args, smartlist_get(tokens, 5));
- sr_commit_t *parsed_commit = sr_parse_commit(args);
- tt_assert(parsed_commit);
- /* Set valid flag explicitly here to compare since it's not set by
- * simply parsing the commit. */
- parsed_commit->valid = 1;
- tt_mem_op(parsed_commit, OP_EQ, our_commit, sizeof(*our_commit));
- /* minor cleanup */
- SMARTLIST_FOREACH(tokens, char *, s, tor_free(s));
- smartlist_clear(tokens);
- /* Now test the previous SRV */
- char *prev_srv_line = smartlist_get(chunks, 2);
- tt_assert(prev_srv_line);
- ret = smartlist_split_string(tokens, prev_srv_line, " ", 0, 0);
- tt_int_op(ret, OP_EQ, 3);
- tt_str_op(smartlist_get(tokens, 0), OP_EQ, "shared-rand-previous-value");
- tt_str_op(smartlist_get(tokens, 1), OP_EQ, "42");
- tt_str_op(smartlist_get(tokens, 2), OP_EQ,
- "WlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlpaWlo=");
- /* minor cleanup */
- SMARTLIST_FOREACH(tokens, char *, s, tor_free(s));
- smartlist_clear(tokens);
- /* Now test the current SRV */
- char *current_srv_line = smartlist_get(chunks, 3);
- tt_assert(current_srv_line);
- ret = smartlist_split_string(tokens, current_srv_line, " ", 0, 0);
- tt_int_op(ret, OP_EQ, 3);
- tt_str_op(smartlist_get(tokens, 0), OP_EQ, "shared-rand-current-value");
- tt_str_op(smartlist_get(tokens, 1), OP_EQ, "128");
- tt_str_op(smartlist_get(tokens, 2), OP_EQ,
- "Tk5OTk5OTk5OTk5OTk5OTk5OTk5OTk5OTk5OTk5OTk4=");
- /* Clean up */
- sr_commit_free(parsed_commit);
- SMARTLIST_FOREACH(chunks, char *, s, tor_free(s));
- smartlist_free(chunks);
- SMARTLIST_FOREACH(tokens, char *, s, tor_free(s));
- smartlist_free(tokens);
- smartlist_clear(args);
- smartlist_free(args);
- tor_free(lines);
- }
- done:
- sr_commit_free(our_commit);
- UNMOCK(trusteddirserver_get_by_v3_auth_digest);
- }
- static const char *sr_state_str = "Version 1\n"
- "TorVersion 0.2.9.0-alpha-dev\n"
- "ValidAfter 2037-04-19 07:16:00\n"
- "ValidUntil 2037-04-20 07:16:00\n"
- "Commit 1 sha3-256 FA3CEC2C99DC68D3166B9B6E4FA21A4026C2AB1C "
- "7M8GdubCAAdh7WUG0DiwRyxTYRKji7HATa7LLJEZ/UAAAAAAVmfUSg== "
- "AAAAAFZn1EojfIheIw42bjK3VqkpYyjsQFSbv/dxNna3Q8hUEPKpOw==\n"
- "Commit 1 sha3-256 41E89EDFBFBA44983E21F18F2230A4ECB5BFB543 "
- "17aUsYuMeRjd2N1r8yNyg7aHqRa6gf4z7QPoxxAZbp0AAAAAVmfUSg==\n"
- "Commit 1 sha3-256 36637026573A04110CF3E6B1D201FB9A98B88734 "
- "DDDYtripvdOU+XPEUm5xpU64d9IURSds1xSwQsgeB8oAAAAAVmfUSg==\n"
- "SharedRandPreviousValue 4 qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqo=\n"
- "SharedRandCurrentValue 3 8dWeW12KEzTGEiLGgO1UVJ7Z91CekoRcxt6Q9KhnOFI=\n";
- /** Create an SR disk state, parse it and validate that the parsing went
- * well. Yes! */
- static void
- test_state_load_from_disk(void *arg)
- {
- int ret;
- char *dir = tor_strdup(get_fname("test_sr_state"));
- char *sr_state_path = tor_strdup(get_fname("test_sr_state/sr_state"));
- sr_state_t *the_sr_state = NULL;
- (void) arg;
- MOCK(trusteddirserver_get_by_v3_auth_digest,
- trusteddirserver_get_by_v3_auth_digest_m);
- /* First try with a nonexistent path. */
- ret = disk_state_load_from_disk_impl("NONEXISTENTNONEXISTENT");
- tt_int_op(ret, OP_EQ, -ENOENT);
- /* Now create a mock state directory and state file */
- #ifdef _WIN32
- ret = mkdir(dir);
- #else
- ret = mkdir(dir, 0700);
- #endif
- tt_int_op(ret, OP_EQ, 0);
- ret = write_str_to_file(sr_state_path, sr_state_str, 0);
- tt_int_op(ret, OP_EQ, 0);
- /* Try to load the directory itself. Should fail. */
- ret = disk_state_load_from_disk_impl(dir);
- tt_int_op(ret, OP_LT, 0);
- /* State should be non-existent at this point. */
- the_sr_state = get_sr_state();
- tt_ptr_op(the_sr_state, OP_EQ, NULL);
- /* Now try to load the correct file! */
- ret = disk_state_load_from_disk_impl(sr_state_path);
- tt_int_op(ret, OP_EQ, 0);
- /* Check the content of the state */
- /* XXX check more deeply!!! */
- the_sr_state = get_sr_state();
- tt_assert(the_sr_state);
- tt_assert(the_sr_state->version == 1);
- tt_assert(digestmap_size(the_sr_state->commits) == 3);
- tt_assert(the_sr_state->current_srv);
- tt_assert(the_sr_state->current_srv->num_reveals == 3);
- tt_assert(the_sr_state->previous_srv);
- /* XXX Now also try loading corrupted state files and make sure parsing
- fails */
- done:
- tor_free(dir);
- tor_free(sr_state_path);
- UNMOCK(trusteddirserver_get_by_v3_auth_digest);
- }
- /** Generate three specially crafted commits (based on the test
- * vector at sr_srv_calc_ref.py). Helper of test_sr_compute_srv(). */
- static void
- test_sr_setup_commits(void)
- {
- time_t now = time(NULL);
- sr_commit_t *commit_a, *commit_b, *commit_c, *commit_d;
- sr_commit_t *place_holder = tor_malloc_zero(sizeof(*place_holder));
- authority_cert_t *auth_cert = NULL;
- { /* Setup a minimal dirauth environment for this test */
- or_options_t *options = get_options_mutable();
- auth_cert = authority_cert_parse_from_string(AUTHORITY_CERT_1, NULL);
- tt_assert(auth_cert);
- options->AuthoritativeDir = 1;
- tt_int_op(0, OP_EQ, load_ed_keys(options, now));
- }
- /* Generate three dummy commits according to sr_srv_calc_ref.py . Then
- register them to the SR state. Also register a fourth commit 'd' with no
- reveal info, to make sure that it will get ignored during SRV
- calculation. */
- { /* Commit from auth 'a' */
- commit_a = sr_generate_our_commit(now, auth_cert);
- tt_assert(commit_a);
- /* Do some surgery on the commit */
- memset(commit_a->rsa_identity, 'A', sizeof(commit_a->rsa_identity));
- base16_encode(commit_a->rsa_identity_hex,
- sizeof(commit_a->rsa_identity_hex), commit_a->rsa_identity,
- sizeof(commit_a->rsa_identity));
- strlcpy(commit_a->encoded_reveal,
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
- sizeof(commit_a->encoded_reveal));
- memcpy(commit_a->hashed_reveal,
- "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
- sizeof(commit_a->hashed_reveal));
- }
- { /* Commit from auth 'b' */
- commit_b = sr_generate_our_commit(now, auth_cert);
- tt_assert(commit_b);
- /* Do some surgery on the commit */
- memset(commit_b->rsa_identity, 'B', sizeof(commit_b->rsa_identity));
- base16_encode(commit_b->rsa_identity_hex,
- sizeof(commit_b->rsa_identity_hex), commit_b->rsa_identity,
- sizeof(commit_b->rsa_identity));
- strlcpy(commit_b->encoded_reveal,
- "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
- sizeof(commit_b->encoded_reveal));
- memcpy(commit_b->hashed_reveal,
- "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
- sizeof(commit_b->hashed_reveal));
- }
- { /* Commit from auth 'c' */
- commit_c = sr_generate_our_commit(now, auth_cert);
- tt_assert(commit_c);
- /* Do some surgery on the commit */
- memset(commit_c->rsa_identity, 'C', sizeof(commit_c->rsa_identity));
- base16_encode(commit_c->rsa_identity_hex,
- sizeof(commit_c->rsa_identity_hex), commit_c->rsa_identity,
- sizeof(commit_c->rsa_identity));
- strlcpy(commit_c->encoded_reveal,
- "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC",
- sizeof(commit_c->encoded_reveal));
- memcpy(commit_c->hashed_reveal,
- "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC",
- sizeof(commit_c->hashed_reveal));
- }
- { /* Commit from auth 'd' */
- commit_d = sr_generate_our_commit(now, auth_cert);
- tt_assert(commit_d);
- /* Do some surgery on the commit */
- memset(commit_d->rsa_identity, 'D', sizeof(commit_d->rsa_identity));
- base16_encode(commit_d->rsa_identity_hex,
- sizeof(commit_d->rsa_identity_hex), commit_d->rsa_identity,
- sizeof(commit_d->rsa_identity));
- strlcpy(commit_d->encoded_reveal,
- "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD",
- sizeof(commit_d->encoded_reveal));
- memcpy(commit_d->hashed_reveal,
- "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD",
- sizeof(commit_d->hashed_reveal));
- /* Clean up its reveal info */
- memcpy(place_holder, commit_d, sizeof(*place_holder));
- memset(commit_d->encoded_reveal, 0, sizeof(commit_d->encoded_reveal));
- tt_assert(!commit_has_reveal_value(commit_d));
- }
- /* Register commits to state (during commit phase) */
- set_sr_phase(SR_PHASE_COMMIT);
- save_commit_to_state(commit_a);
- save_commit_to_state(commit_b);
- save_commit_to_state(commit_c);
- save_commit_to_state(commit_d);
- tt_int_op(digestmap_size(get_sr_state()->commits), OP_EQ, 4);
- /* Now during REVEAL phase save commit D by restoring its reveal. */
- set_sr_phase(SR_PHASE_REVEAL);
- save_commit_to_state(place_holder);
- place_holder = NULL;
- tt_str_op(commit_d->encoded_reveal, OP_EQ,
- "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD");
- /* Go back to an empty encoded reveal value. */
- memset(commit_d->encoded_reveal, 0, sizeof(commit_d->encoded_reveal));
- memset(commit_d->random_number, 0, sizeof(commit_d->random_number));
- tt_assert(!commit_has_reveal_value(commit_d));
- done:
- tor_free(place_holder);
- authority_cert_free(auth_cert);
- }
- /** Verify that the SRV generation procedure is proper by testing it against
- * the test vector from ./sr_srv_calc_ref.py. */
- static void
- test_sr_compute_srv(void *arg)
- {
- (void) arg;
- const sr_srv_t *current_srv = NULL;
- #define SRV_TEST_VECTOR \
- "2A9B1D6237DAB312A40F575DA85C147663E7ED3F80E9555395F15B515C74253D"
- MOCK(trusteddirserver_get_by_v3_auth_digest,
- trusteddirserver_get_by_v3_auth_digest_m);
- init_authority_state();
- /* Setup the commits for this unittest */
- test_sr_setup_commits();
- test_sr_setup_srv(0);
- /* Now switch to reveal phase */
- set_sr_phase(SR_PHASE_REVEAL);
- /* Compute the SRV */
- sr_compute_srv();
- /* Check the result against the test vector */
- current_srv = sr_state_get_current_srv();
- tt_assert(current_srv);
- tt_u64_op(current_srv->num_reveals, OP_EQ, 3);
- tt_str_op(hex_str((char*)current_srv->value, 32),
- OP_EQ,
- SRV_TEST_VECTOR);
- done:
- UNMOCK(trusteddirserver_get_by_v3_auth_digest);
- }
- /** Return a minimal vote document with a current SRV value set to
- * <b>srv</b>. */
- static networkstatus_t *
- get_test_vote_with_curr_srv(const char *srv)
- {
- networkstatus_t *vote = tor_malloc_zero(sizeof(networkstatus_t));
- vote->type = NS_TYPE_VOTE;
- vote->sr_info.participate = 1;
- vote->sr_info.current_srv = tor_malloc_zero(sizeof(sr_srv_t));
- vote->sr_info.current_srv->num_reveals = 42;
- memcpy(vote->sr_info.current_srv->value,
- srv,
- sizeof(vote->sr_info.current_srv->value));
- return vote;
- }
- /* Test the function that picks the right SRV given a bunch of votes. Make sure
- * that the function returns an SRV iff the majority/agreement requirements are
- * met. */
- static void
- test_sr_get_majority_srv_from_votes(void *arg)
- {
- sr_srv_t *chosen_srv;
- smartlist_t *votes = smartlist_new();
- #define SRV_1 "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
- #define SRV_2 "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"
- (void) arg;
- init_authority_state();
- /* Make sure our SRV is fresh so we can consider the super majority with
- * the consensus params of number of agreements needed. */
- sr_state_set_fresh_srv();
- /* The test relies on the dirauth list being initialized. */
- clear_dir_servers();
- add_default_trusted_dir_authorities(V3_DIRINFO);
- { /* Prepare voting environment with just a single vote. */
- networkstatus_t *vote = get_test_vote_with_curr_srv(SRV_1);
- smartlist_add(votes, vote);
- }
- /* Since it's only one vote with an SRV, it should not achieve majority and
- hence no SRV will be returned. */
- chosen_srv = get_majority_srv_from_votes(votes, 1);
- tt_ptr_op(chosen_srv, OP_EQ, NULL);
- { /* Now put in 8 more votes. Let SRV_1 have majority. */
- int i;
- /* Now 7 votes believe in SRV_1 */
- for (i = 0; i < 3; i++) {
- networkstatus_t *vote = get_test_vote_with_curr_srv(SRV_1);
- smartlist_add(votes, vote);
- }
- /* and 2 votes believe in SRV_2 */
- for (i = 0; i < 2; i++) {
- networkstatus_t *vote = get_test_vote_with_curr_srv(SRV_2);
- smartlist_add(votes, vote);
- }
- for (i = 0; i < 3; i++) {
- networkstatus_t *vote = get_test_vote_with_curr_srv(SRV_1);
- smartlist_add(votes, vote);
- }
- tt_int_op(smartlist_len(votes), OP_EQ, 9);
- }
- /* Now we achieve majority for SRV_1, but not the AuthDirNumSRVAgreements
- requirement. So still not picking an SRV. */
- set_num_srv_agreements(8);
- chosen_srv = get_majority_srv_from_votes(votes, 1);
- tt_ptr_op(chosen_srv, OP_EQ, NULL);
- /* We will now lower the AuthDirNumSRVAgreements requirement by tweaking the
- * consensus parameter and we will try again. This time it should work. */
- set_num_srv_agreements(7);
- chosen_srv = get_majority_srv_from_votes(votes, 1);
- tt_assert(chosen_srv);
- tt_u64_op(chosen_srv->num_reveals, OP_EQ, 42);
- tt_mem_op(chosen_srv->value, OP_EQ, SRV_1, sizeof(chosen_srv->value));
- done:
- SMARTLIST_FOREACH(votes, networkstatus_t *, vote,
- networkstatus_vote_free(vote));
- smartlist_free(votes);
- }
- static void
- test_utils(void *arg)
- {
- (void) arg;
- /* Testing srv_dup(). */
- {
- sr_srv_t *srv = NULL, *dup_srv = NULL;
- const char *srv_value =
- "1BDB7C3E973936E4D13A49F37C859B3DC69C429334CF9412E3FEF6399C52D47A";
- srv = tor_malloc_zero(sizeof(*srv));
- srv->num_reveals = 42;
- memcpy(srv->value, srv_value, sizeof(srv->value));
- dup_srv = srv_dup(srv);
- tt_assert(dup_srv);
- tt_u64_op(dup_srv->num_reveals, OP_EQ, srv->num_reveals);
- tt_mem_op(dup_srv->value, OP_EQ, srv->value, sizeof(srv->value));
- tor_free(srv);
- tor_free(dup_srv);
- }
- /* Testing commitments_are_the_same(). Currently, the check is to test the
- * value of the encoded commit so let's make sure that actually works. */
- {
- /* Payload of 57 bytes that is the length of sr_commit_t->encoded_commit.
- * 56 bytes of payload and a NUL terminated byte at the end ('\x00')
- * which comes down to SR_COMMIT_BASE64_LEN + 1. */
- const char *payload =
- "\x5d\xb9\x60\xb6\xcc\x51\x68\x52\x31\xd9\x88\x88\x71\x71\xe0\x30"
- "\x59\x55\x7f\xcd\x61\xc0\x4b\x05\xb8\xcd\xc1\x48\xe9\xcd\x16\x1f"
- "\x70\x15\x0c\xfc\xd3\x1a\x75\xd0\x93\x6c\xc4\xe0\x5c\xbe\xe2\x18"
- "\xc7\xaf\x72\xb6\x7c\x9b\x52\x00";
- sr_commit_t commit1, commit2;
- memcpy(commit1.encoded_commit, payload, sizeof(commit1.encoded_commit));
- memcpy(commit2.encoded_commit, payload, sizeof(commit2.encoded_commit));
- tt_int_op(commitments_are_the_same(&commit1, &commit2), OP_EQ, 1);
- /* Let's corrupt one of them. */
- memset(commit1.encoded_commit, 'A', sizeof(commit1.encoded_commit));
- tt_int_op(commitments_are_the_same(&commit1, &commit2), OP_EQ, 0);
- }
- /* Testing commit_is_authoritative(). */
- {
- crypto_pk_t *k = crypto_pk_new();
- char digest[DIGEST_LEN];
- sr_commit_t commit;
- tt_assert(!crypto_pk_generate_key(k));
- tt_int_op(0, OP_EQ, crypto_pk_get_digest(k, digest));
- memcpy(commit.rsa_identity, digest, sizeof(commit.rsa_identity));
- tt_int_op(commit_is_authoritative(&commit, digest), OP_EQ, 1);
- /* Change the pubkey. */
- memset(commit.rsa_identity, 0, sizeof(commit.rsa_identity));
- tt_int_op(commit_is_authoritative(&commit, digest), OP_EQ, 0);
- crypto_pk_free(k);
- }
- /* Testing get_phase_str(). */
- {
- tt_str_op(get_phase_str(SR_PHASE_REVEAL), OP_EQ, "reveal");
- tt_str_op(get_phase_str(SR_PHASE_COMMIT), OP_EQ, "commit");
- }
- /* Testing phase transition */
- {
- init_authority_state();
- set_sr_phase(SR_PHASE_COMMIT);
- tt_int_op(is_phase_transition(SR_PHASE_REVEAL), OP_EQ, 1);
- tt_int_op(is_phase_transition(SR_PHASE_COMMIT), OP_EQ, 0);
- set_sr_phase(SR_PHASE_REVEAL);
- tt_int_op(is_phase_transition(SR_PHASE_REVEAL), OP_EQ, 0);
- tt_int_op(is_phase_transition(SR_PHASE_COMMIT), OP_EQ, 1);
- /* Junk. */
- tt_int_op(is_phase_transition(42), OP_EQ, 1);
- }
- done:
- return;
- }
- static void
- test_state_transition(void *arg)
- {
- sr_state_t *state = NULL;
- time_t now = time(NULL);
- (void) arg;
- { /* Setup a minimal dirauth environment for this test */
- init_authority_state();
- state = get_sr_state();
- tt_assert(state);
- }
- /* Test our state reset for a new protocol run. */
- {
- /* Add a commit to the state so we can test if the reset cleans the
- * commits. Also, change all params that we expect to be updated. */
- sr_commit_t *commit = sr_generate_our_commit(now, mock_cert);
- tt_assert(commit);
- sr_state_add_commit(commit);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- /* Let's test our delete feature. */
- sr_state_delete_commits();
- tt_int_op(digestmap_size(state->commits), OP_EQ, 0);
- /* Add it back so we can continue the rest of the test because after
- * deletiong our commit will be freed so generate a new one. */
- commit = sr_generate_our_commit(now, mock_cert);
- tt_assert(commit);
- sr_state_add_commit(commit);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- state->n_reveal_rounds = 42;
- state->n_commit_rounds = 43;
- state->n_protocol_runs = 44;
- reset_state_for_new_protocol_run(now);
- tt_int_op(state->n_reveal_rounds, OP_EQ, 0);
- tt_int_op(state->n_commit_rounds, OP_EQ, 0);
- tt_u64_op(state->n_protocol_runs, OP_EQ, 45);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 0);
- }
- /* Test SRV rotation in our state. */
- {
- const sr_srv_t *cur, *prev;
- test_sr_setup_srv(1);
- cur = sr_state_get_current_srv();
- tt_assert(cur);
- /* After, current srv should be the previous and then set to NULL. */
- state_rotate_srv();
- prev = sr_state_get_previous_srv();
- tt_assert(prev == cur);
- tt_ptr_op(sr_state_get_current_srv(), OP_EQ, NULL);
- sr_state_clean_srvs();
- }
- /* New protocol run. */
- {
- const sr_srv_t *cur;
- /* Setup some new SRVs so we can confirm that a new protocol run
- * actually makes them rotate and compute new ones. */
- test_sr_setup_srv(1);
- cur = sr_state_get_current_srv();
- tt_assert(cur);
- set_sr_phase(SR_PHASE_REVEAL);
- MOCK(get_my_v3_authority_cert, get_my_v3_authority_cert_m);
- new_protocol_run(now);
- UNMOCK(get_my_v3_authority_cert);
- /* Rotation happened. */
- tt_assert(sr_state_get_previous_srv() == cur);
- /* We are going into COMMIT phase so we had to rotate our SRVs. Usually
- * our current SRV would be NULL but a new protocol run should make us
- * compute a new SRV. */
- tt_assert(sr_state_get_current_srv());
- /* Also, make sure we did change the current. */
- tt_assert(sr_state_get_current_srv() != cur);
- /* We should have our commitment alone. */
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- tt_int_op(state->n_reveal_rounds, OP_EQ, 0);
- tt_int_op(state->n_commit_rounds, OP_EQ, 0);
- /* 46 here since we were at 45 just before. */
- tt_u64_op(state->n_protocol_runs, OP_EQ, 46);
- }
- /* Cleanup of SRVs. */
- {
- sr_state_clean_srvs();
- tt_ptr_op(sr_state_get_current_srv(), OP_EQ, NULL);
- tt_ptr_op(sr_state_get_previous_srv(), OP_EQ, NULL);
- }
- done:
- return;
- }
- static void
- test_keep_commit(void *arg)
- {
- char fp[FINGERPRINT_LEN + 1];
- sr_commit_t *commit = NULL, *dup_commit = NULL;
- sr_state_t *state;
- time_t now = time(NULL);
- crypto_pk_t *k = NULL;
- (void) arg;
- MOCK(trusteddirserver_get_by_v3_auth_digest,
- trusteddirserver_get_by_v3_auth_digest_m);
- {
- k = pk_generate(1);
- /* Setup a minimal dirauth environment for this test */
- /* Have a key that is not the one from our commit. */
- init_authority_state();
- state = get_sr_state();
- }
- crypto_rand((char*)fp, sizeof(fp));
- /* Test this very important function that tells us if we should keep a
- * commit or not in our state. Most of it depends on the phase and what's
- * in the commit so we'll change the commit as we go. */
- commit = sr_generate_our_commit(now, mock_cert);
- tt_assert(commit);
- /* Set us in COMMIT phase for starter. */
- set_sr_phase(SR_PHASE_COMMIT);
- /* We should never keep a commit from a non authoritative authority. */
- tt_int_op(should_keep_commit(commit, fp, SR_PHASE_COMMIT), OP_EQ, 0);
- /* This should NOT be kept because it has a reveal value in it. */
- tt_assert(commit_has_reveal_value(commit));
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_COMMIT), OP_EQ, 0);
- /* Add it to the state which should return to not keep it. */
- sr_state_add_commit(commit);
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_COMMIT), OP_EQ, 0);
- /* Remove it from state so we can continue our testing. */
- digestmap_remove(state->commits, commit->rsa_identity);
- /* Let's remove our reveal value which should make it OK to keep it. */
- memset(commit->encoded_reveal, 0, sizeof(commit->encoded_reveal));
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_COMMIT), OP_EQ, 1);
- /* Let's reset our commit and go into REVEAL phase. */
- sr_commit_free(commit);
- commit = sr_generate_our_commit(now, mock_cert);
- tt_assert(commit);
- /* Dup the commit so we have one with and one without a reveal value. */
- dup_commit = tor_malloc_zero(sizeof(*dup_commit));
- memcpy(dup_commit, commit, sizeof(*dup_commit));
- memset(dup_commit->encoded_reveal, 0, sizeof(dup_commit->encoded_reveal));
- set_sr_phase(SR_PHASE_REVEAL);
- /* We should never keep a commit from a non authoritative authority. */
- tt_int_op(should_keep_commit(commit, fp, SR_PHASE_REVEAL), OP_EQ, 0);
- /* We shouldn't accept a commit that is not in our state. */
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_REVEAL), OP_EQ, 0);
- /* Important to add the commit _without_ the reveal here. */
- sr_state_add_commit(dup_commit);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- /* Our commit should be valid that is authoritative, contains a reveal, be
- * in the state and commitment and reveal values match. */
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_REVEAL), OP_EQ, 1);
- /* The commit shouldn't be kept if it's not verified that is no matchin
- * hashed reveal. */
- {
- /* Let's save the hash reveal so we can restore it. */
- sr_commit_t place_holder;
- memcpy(place_holder.hashed_reveal, commit->hashed_reveal,
- sizeof(place_holder.hashed_reveal));
- memset(commit->hashed_reveal, 0, sizeof(commit->hashed_reveal));
- setup_full_capture_of_logs(LOG_WARN);
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_REVEAL), OP_EQ, 0);
- expect_log_msg_containing("doesn't match the commit value.");
- expect_log_msg_containing("has an invalid reveal value.");
- assert_log_predicate(mock_saved_log_n_entries() == 2,
- ("expected 2 log entries"));
- teardown_capture_of_logs();
- memcpy(commit->hashed_reveal, place_holder.hashed_reveal,
- sizeof(commit->hashed_reveal));
- }
- /* We shouldn't keep a commit that has no reveal. */
- tt_int_op(should_keep_commit(dup_commit, dup_commit->rsa_identity,
- SR_PHASE_REVEAL), OP_EQ, 0);
- /* We must not keep a commit that is not the same from the commit phase. */
- memset(commit->encoded_commit, 0, sizeof(commit->encoded_commit));
- tt_int_op(should_keep_commit(commit, commit->rsa_identity,
- SR_PHASE_REVEAL), OP_EQ, 0);
- done:
- teardown_capture_of_logs();
- sr_commit_free(commit);
- sr_commit_free(dup_commit);
- crypto_pk_free(k);
- UNMOCK(trusteddirserver_get_by_v3_auth_digest);
- }
- static void
- test_state_update(void *arg)
- {
- time_t commit_phase_time = 1452076000;
- time_t reveal_phase_time = 1452086800;
- sr_state_t *state;
- (void) arg;
- {
- init_authority_state();
- state = get_sr_state();
- set_sr_phase(SR_PHASE_COMMIT);
- /* We'll cheat a bit here and reset the creation time of the state which
- * will avoid us to compute a valid_after time that fits the commit
- * phase. */
- state->valid_after = 0;
- state->n_reveal_rounds = 0;
- state->n_commit_rounds = 0;
- state->n_protocol_runs = 0;
- }
- /* We need to mock for the state update function call. */
- MOCK(get_my_v3_authority_cert, get_my_v3_authority_cert_m);
- /* We are in COMMIT phase here and we'll trigger a state update but no
- * transition. */
- sr_state_update(commit_phase_time);
- tt_int_op(state->valid_after, OP_EQ, commit_phase_time);
- tt_int_op(state->n_commit_rounds, OP_EQ, 1);
- tt_int_op(state->phase, OP_EQ, SR_PHASE_COMMIT);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- /* We are still in the COMMIT phase here but we'll trigger a state
- * transition to the REVEAL phase. */
- sr_state_update(reveal_phase_time);
- tt_int_op(state->phase, OP_EQ, SR_PHASE_REVEAL);
- tt_int_op(state->valid_after, OP_EQ, reveal_phase_time);
- /* Only our commit should be in there. */
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- tt_int_op(state->n_reveal_rounds, OP_EQ, 1);
- /* We can't update a state with a valid after _lower_ than the creation
- * time so here it is. */
- sr_state_update(commit_phase_time);
- tt_int_op(state->valid_after, OP_EQ, reveal_phase_time);
- /* Finally, let's go back in COMMIT phase so we can test the state update
- * of a new protocol run. */
- state->valid_after = 0;
- sr_state_update(commit_phase_time);
- tt_int_op(state->valid_after, OP_EQ, commit_phase_time);
- tt_int_op(state->n_commit_rounds, OP_EQ, 1);
- tt_int_op(state->n_reveal_rounds, OP_EQ, 0);
- tt_u64_op(state->n_protocol_runs, OP_EQ, 1);
- tt_int_op(state->phase, OP_EQ, SR_PHASE_COMMIT);
- tt_int_op(digestmap_size(state->commits), OP_EQ, 1);
- tt_assert(state->current_srv);
- done:
- sr_state_free_all();
- UNMOCK(get_my_v3_authority_cert);
- }
- struct testcase_t sr_tests[] = {
- { "get_sr_protocol_phase", test_get_sr_protocol_phase, TT_FORK,
- NULL, NULL },
- { "sr_commit", test_sr_commit, TT_FORK,
- NULL, NULL },
- { "keep_commit", test_keep_commit, TT_FORK,
- NULL, NULL },
- { "encoding", test_encoding, TT_FORK,
- NULL, NULL },
- { "get_start_time_of_current_run", test_get_start_time_of_current_run,
- TT_FORK, NULL, NULL },
- { "get_start_time_functions", test_get_start_time_functions,
- TT_FORK, NULL, NULL },
- { "get_sr_protocol_duration", test_get_sr_protocol_duration, TT_FORK,
- NULL, NULL },
- { "get_state_valid_until_time", test_get_state_valid_until_time, TT_FORK,
- NULL, NULL },
- { "vote", test_vote, TT_FORK,
- NULL, NULL },
- { "state_load_from_disk", test_state_load_from_disk, TT_FORK,
- NULL, NULL },
- { "sr_compute_srv", test_sr_compute_srv, TT_FORK, NULL, NULL },
- { "sr_get_majority_srv_from_votes", test_sr_get_majority_srv_from_votes,
- TT_FORK, NULL, NULL },
- { "utils", test_utils, TT_FORK, NULL, NULL },
- { "state_transition", test_state_transition, TT_FORK, NULL, NULL },
- { "state_update", test_state_update, TT_FORK,
- NULL, NULL },
- END_OF_TESTCASES
- };
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