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7d04638a60
tor/src/test/test_shared_random.c
David Goulet 7d04638a60 test: Fix shared random buffer overrun 
Encoded commit has an extra byte at the end for the NUL terminated byte and
the test was overrunning the payload buffer by one byte.

Found by Coverity issue 1362984.

Fixes #19567

Signed-off-by: David Goulet <dgoulet@torproject.org>
2016-07-04 11:40:06 -04:00

1268 lines
43 KiB
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#define SHARED_RANDOM_PRIVATE
#define SHARED_RANDOM_STATE_PRIVATE
#define CONFIG_PRIVATE
#define DIRVOTE_PRIVATE
#include "or.h"
#include "test.h"
#include "config.h"
#include "dirvote.h"
#include "shared_random.h"
#include "shared_random_state.h"
#include "routerkeys.h"
#include "routerlist.h"
#include "router.h"
#include "routerparse.h"
#include "networkstatus.h"
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(0, ==, load_ed_keys(options, time(NULL)));
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, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_REVEAL);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 00:00:00 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_COMMIT);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 00:00:01 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_COMMIT);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 11:59:00 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_COMMIT);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 12:00:00 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_REVEAL);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 12:00:01 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_REVEAL);
}
{
retval = parse_rfc1123_time("Wed, 20 Apr 2015 13:00:00 UTC", &the_time);
tt_int_op(retval, ==, 0);
phase = get_sr_protocol_phase(the_time);
tt_int_op(phase, ==, SR_PHASE_REVEAL);
}
done:
;
}
static networkstatus_t *mock_consensus = NULL;
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;
{
/* Get the valid until time if called at 00:00:01 */
retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:01 UTC",
&current_time);
tt_int_op(retval, ==, 0);
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",
&current_time);
tt_int_op(retval, ==, 0);
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",
&current_time);
tt_int_op(retval, ==, 0);
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",
&current_time);
tt_int_op(retval, ==, 0);
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:
;
}
/* 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;
}
/** Test the get_next_valid_after_time() function. */
static void
test_get_next_valid_after_time(void *arg)
{
time_t current_time;
time_t valid_after_time;
char tbuf[ISO_TIME_LEN + 1];
int retval;
(void) arg;
{
/* Setup a fake consensus just to get the times out of it, since
get_next_valid_after_time() needs them. */
mock_consensus = tor_malloc_zero(sizeof(networkstatus_t));
retval = parse_rfc1123_time("Mon, 13 Jan 2016 16:00:00 UTC",
&mock_consensus->fresh_until);
tt_int_op(retval, ==, 0);
retval = parse_rfc1123_time("Mon, 13 Jan 2016 15:00:00 UTC",
&mock_consensus->valid_after);
tt_int_op(retval, ==, 0);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
}
{
/* Get the valid after time if called at 00:00:00 */
retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:00 UTC",
&current_time);
tt_int_op(retval, ==, 0);
valid_after_time = get_next_valid_after_time(current_time);
/* Compare it with the correct result */
format_iso_time(tbuf, valid_after_time);
tt_str_op("2015-04-20 01:00:00", OP_EQ, tbuf);
}
{
/* Get the valid until time if called at 00:00:01 */
retval = parse_rfc1123_time("Mon, 20 Apr 2015 00:00:01 UTC",
&current_time);
tt_int_op(retval, ==, 0);
valid_after_time = get_next_valid_after_time(current_time);
/* Compare it with the correct result */
format_iso_time(tbuf, valid_after_time);
tt_str_op("2015-04-20 01:00:00", OP_EQ, tbuf);
}
{
retval = parse_rfc1123_time("Mon, 20 Apr 2015 23:30:01 UTC",
&current_time);
tt_int_op(retval, ==, 0);
valid_after_time = get_next_valid_after_time(current_time);
/* Compare it with the correct result */
format_iso_time(tbuf, valid_after_time);
tt_str_op("2015-04-21 00:00:00", OP_EQ, tbuf);
}
done:
networkstatus_vote_free(mock_consensus);
}
/* 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();
(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(0, ==, load_ed_keys(options, now));
}
/* 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, ==, 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 seperately. */
tt_int_op(0, ==, reveal_decode(our_commit->encoded_reveal,
&test_commit));
tt_int_op(0, ==, commit_decode(our_commit->encoded_commit,
&test_commit));
tt_int_op(0, ==, 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;
tt_int_op(-1, ==, verify_commit_and_reveal(&test_commit));
memcpy(&test_commit, our_commit, sizeof(test_commit));
tt_int_op(0, ==, 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));
tt_int_op(-1, ==, verify_commit_and_reveal(&test_commit));
memcpy(&test_commit, our_commit, sizeof(test_commit));
tt_int_op(0, ==, 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. */
{
sr_commit_t *parsed_commit;
smartlist_add(args, tor_strdup("1"));
smartlist_add(args,
tor_strdup(crypto_digest_algorithm_get_name(our_commit->alg)));
smartlist_add(args, tor_strdup(sr_commit_get_rsa_fpr(our_commit)));
smartlist_add(args, our_commit->encoded_commit);
smartlist_add(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 */
tor_free(smartlist_get(args, 0)); /* strdup here. */
tor_free(smartlist_get(args, 1)); /* strdup here. */
smartlist_clear(args);
sr_commit_free(parsed_commit);
}
done:
smartlist_free(args);
sr_commit_free(our_commit);
}
/* Test the encoding and decoding function for commit and reveal values. */
static void
test_encoding(void *arg)
{
(void) arg;
int ret, duper_rand = 42;
/* 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;
/* Encoded commit is: base64-encode( 1454333590 || H(H(42)) ). Remember
* that we do no expose the raw bytes of our PRNG to the network thus
* explaining the double H(). */
static const char *encoded_commit =
"AAAAAFavXpZbx2LRneYFSLPCP8DLp9BXfeH5FXzbkxM4iRXKGeA54g==";
/* Encoded reveal is: base64-encode( 1454333590 || H(42) ). */
static const char *encoded_reveal =
"AAAAAFavXpYk9x9kTjiQWUqjHwSAEOdPAfCaurXgjPy173SzYjeC2g==";
/* Set up our raw random bytes array. */
memset(raw_rand, 0, sizeof(raw_rand));
memcpy(raw_rand, &duper_rand, sizeof(duper_rand));
/* Hash random number. */
ret = crypto_digest256(hashed_rand, raw_rand,
sizeof(raw_rand), SR_DIGEST_ALG);
tt_int_op(0, ==, ret);
/* Hash reveal value. */
tt_int_op(SR_REVEAL_BASE64_LEN, ==, strlen(encoded_reveal));
ret = crypto_digest256(hashed_reveal, encoded_reveal,
strlen(encoded_reveal), SR_DIGEST_ALG);
tt_int_op(0, ==, ret);
tt_int_op(SR_COMMIT_BASE64_LEN, ==, strlen(encoded_commit));
/* Test our commit/reveal decode functions. */
{
/* Test the reveal encoded value. */
tt_int_op(0, ==, reveal_decode(encoded_reveal, &parsed_commit));
tt_u64_op(ts, ==, 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, ==, commit_decode(encoded_commit, &parsed_commit));
tt_u64_op(ts, ==, 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, ==, 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, ==, 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, ==, 4);
tt_str_op(smartlist_get(chunks, 0), OP_EQ, "shared-rand-participate");
/* Get our commitment line and will validate it agains 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, ==, 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, ==, 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, ==, 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, ==, 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, ==, 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);
}
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_assert(ret == -ENOENT);
/* Now create a mock state directory and state file */
#ifdef _WIN32
ret = mkdir(dir);
#else
ret = mkdir(dir, 0700);
#endif
tt_assert(ret == 0);
ret = write_str_to_file(sr_state_path, sr_state_str, 0);
tt_assert(ret == 0);
/* Try to load the directory itself. Should fail. */
ret = disk_state_load_from_disk_impl(dir);
#ifdef _WIN32
tt_int_op(ret, OP_EQ, -EACCES);
#else
tt_int_op(ret, OP_EQ, -EISDIR);
#endif
/* State should be non-existent at this point. */
the_sr_state = get_sr_state();
tt_assert(!the_sr_state);
/* Now try to load the correct file! */
ret = disk_state_load_from_disk_impl(sr_state_path);
tt_assert(ret == 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, ==, 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));
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));
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));
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));
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), ==, 4);
/* Now during REVEAL phase save commit D by restoring its reveal. */
set_sr_phase(SR_PHASE_REVEAL);
save_commit_to_state(place_holder);
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:
return;
}
/** 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, ==, 3);
tt_str_op(hex_str((char*)current_srv->value, 32),
==,
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);
tt_int_op(get_n_authorities(V3_DIRINFO), ==, 9);
{ /* 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_assert(!chosen_srv);
{ /* 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), ==, 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_assert(!chosen_srv);
/* 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, ==, 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, ==, 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), ==, 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), ==, 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, ==, crypto_pk_get_digest(k, digest));
memcpy(commit.rsa_identity, digest, sizeof(commit.rsa_identity));
tt_int_op(commit_is_authoritative(&commit, digest), ==, 1);
/* Change the pubkey. */
memset(commit.rsa_identity, 0, sizeof(commit.rsa_identity));
tt_int_op(commit_is_authoritative(&commit, digest), ==, 0);
}
/* Testing get_phase_str(). */
{
tt_str_op(get_phase_str(SR_PHASE_REVEAL), ==, "reveal");
tt_str_op(get_phase_str(SR_PHASE_COMMIT), ==, "commit");
}
/* Testing phase transition */
{
init_authority_state();
set_sr_phase(SR_PHASE_COMMIT);
tt_int_op(is_phase_transition(SR_PHASE_REVEAL), ==, 1);
tt_int_op(is_phase_transition(SR_PHASE_COMMIT), ==, 0);
set_sr_phase(SR_PHASE_REVEAL);
tt_int_op(is_phase_transition(SR_PHASE_REVEAL), ==, 0);
tt_int_op(is_phase_transition(SR_PHASE_COMMIT), ==, 1);
/* Junk. */
tt_int_op(is_phase_transition(42), ==, 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), ==, 1);
/* Let's test our delete feature. */
sr_state_delete_commits();
tt_int_op(digestmap_size(state->commits), ==, 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), ==, 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, ==, 0);
tt_int_op(state->n_commit_rounds, ==, 0);
tt_u64_op(state->n_protocol_runs, ==, 45);
tt_int_op(digestmap_size(state->commits), ==, 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_assert(!sr_state_get_current_srv());
}
/* 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), ==, 1);
tt_int_op(state->n_reveal_rounds, ==, 0);
tt_int_op(state->n_commit_rounds, ==, 0);
/* 46 here since we were at 45 just before. */
tt_u64_op(state->n_protocol_runs, ==, 46);
}
/* Cleanup of SRVs. */
{
sr_state_clean_srvs();
tt_assert(!sr_state_get_current_srv());
tt_assert(!sr_state_get_previous_srv());
}
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);
(void) arg;
MOCK(trusteddirserver_get_by_v3_auth_digest,
trusteddirserver_get_by_v3_auth_digest_m);
{ /* Setup a minimal dirauth environment for this test */
crypto_pk_t *k = crypto_pk_new();
/* Have a key that is not the one from our commit. */
tt_int_op(0, ==, crypto_pk_generate_key(k));
tt_int_op(0, ==, crypto_pk_get_fingerprint(k, fp, 0));
init_authority_state();
state = get_sr_state();
}
/* 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), ==, 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), ==, 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), ==, 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), ==, 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), ==, 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), ==, 0);
/* Important to add the commit _without_ the reveal here. */
sr_state_add_commit(dup_commit);
tt_int_op(digestmap_size(state->commits), ==, 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), ==, 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));
tt_int_op(should_keep_commit(commit, commit->rsa_identity,
SR_PHASE_REVEAL), ==, 0);
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), ==, 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), ==, 0);
done:
sr_commit_free(commit);
sr_commit_free(dup_commit);
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;
}
/* 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, ==, commit_phase_time);
tt_int_op(state->n_commit_rounds, ==, 1);
tt_int_op(state->phase, ==, SR_PHASE_COMMIT);
tt_int_op(digestmap_size(state->commits), ==, 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, ==, SR_PHASE_REVEAL);
tt_int_op(state->valid_after, ==, reveal_phase_time);
/* Only our commit should be in there. */
tt_int_op(digestmap_size(state->commits), ==, 1);
tt_int_op(state->n_reveal_rounds, ==, 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, ==, 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, ==, commit_phase_time);
tt_int_op(state->n_commit_rounds, ==, 1);
tt_int_op(state->n_reveal_rounds, ==, 0);
tt_u64_op(state->n_protocol_runs, ==, 1);
tt_int_op(state->phase, ==, SR_PHASE_COMMIT);
tt_int_op(digestmap_size(state->commits), ==, 1);
tt_assert(state->current_srv);
done:
sr_state_free();
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_next_valid_after_time", test_get_next_valid_after_time, 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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