static void
test_channel_listener(void *arg)
{
int old_count;
time_t now = time(NULL);
channel_listener_t *chan = NULL;
(void) arg;
chan = tor_malloc_zero(sizeof(*chan));
tt_assert(chan);
channel_init_listener(chan);
tt_u64_op(chan->global_identifier, OP_EQ, 1);
tt_int_op(chan->timestamp_created, OP_GE, now);
chan->close = test_chan_listener_close;
/* Register it. At this point, it is not open so it will be put in the
* finished list. */
channel_listener_register(chan);
tt_int_op(chan->registered, OP_EQ, 1);
channel_listener_unregister(chan);
/* Register it as listening now thus active. */
chan->state = CHANNEL_LISTENER_STATE_LISTENING;
channel_listener_register(chan);
tt_int_op(chan->registered, OP_EQ, 1);
/* Set the listener function. */
channel_listener_set_listener_fn(chan, test_chan_listener_fn);
tt_ptr_op(chan->listener, OP_EQ, test_chan_listener_fn);
/* Put a channel in the listener incoming list and queue it.
* function. By doing this, the listener() handler will be called. */
channel_t *in_chan = new_fake_channel();
old_count = test_chan_listener_fn_called;
channel_listener_queue_incoming(chan, in_chan);
free_fake_channel(in_chan);
tt_int_op(test_chan_listener_fn_called, OP_EQ, old_count + 1);
/* Put listener channel in CLOSING state. */
old_count = test_chan_listener_close_fn_called;
channel_listener_mark_for_close(chan);
tt_int_op(test_chan_listener_close_fn_called, OP_EQ, old_count + 1);
channel_listener_change_state(chan, CHANNEL_LISTENER_STATE_CLOSED);
/* Dump stats so we at least hit the code path. */
chan->describe_transport = test_chan_listener_describe_transport;
/* There is a check for "now > timestamp_created" when dumping the stats so
* make sure we go in. */
chan->timestamp_created = now - 10;
channel_listener_dump_statistics(chan, LOG_INFO);
done:
channel_free_all();
}
static void
test_channel_lifecycle(void *arg)
{
channel_t *ch1 = NULL, *ch2 = NULL;
packed_cell_t *p_cell = NULL;
int old_count, init_doesnt_want_writes_count;
int init_releases_count;
(void)arg;
/* Mock these for the whole lifecycle test */
MOCK(scheduler_channel_doesnt_want_writes,
scheduler_channel_doesnt_want_writes_mock);
MOCK(scheduler_release_channel,
scheduler_release_channel_mock);
/* Cache some initial counter values */
init_doesnt_want_writes_count = test_doesnt_want_writes_count;
init_releases_count = test_releases_count;
/* Accept cells to lower layer */
test_chan_accept_cells = 1;
ch1 = new_fake_channel();
tt_assert(ch1);
/* Start it off in OPENING */
ch1->state = CHANNEL_STATE_OPENING;
/* Try to register it */
channel_register(ch1);
tt_assert(ch1->registered);
/* Try to write a cell through (should queue) */
p_cell = packed_cell_new();
old_count = test_cells_written;
channel_write_packed_cell(ch1, p_cell);
tt_int_op(old_count, OP_EQ, test_cells_written);
/* Move it to OPEN and flush */
channel_change_state_open(ch1);
/* Get another one */
ch2 = new_fake_channel();
tt_assert(ch2);
ch2->state = CHANNEL_STATE_OPENING;
/* Register */
channel_register(ch2);
tt_assert(ch2->registered);
/* Check counters */
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count);
tt_int_op(test_releases_count, OP_EQ, init_releases_count);
/* Move ch1 to MAINT */
channel_change_state(ch1, CHANNEL_STATE_MAINT);
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count + 1);
tt_int_op(test_releases_count, OP_EQ, init_releases_count);
/* Move ch2 to OPEN */
channel_change_state_open(ch2);
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count + 1);
tt_int_op(test_releases_count, OP_EQ, init_releases_count);
/* Move ch1 back to OPEN */
channel_change_state_open(ch1);
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count + 1);
tt_int_op(test_releases_count, OP_EQ, init_releases_count);
/* Mark ch2 for close */
channel_mark_for_close(ch2);
tt_int_op(ch2->state, OP_EQ, CHANNEL_STATE_CLOSING);
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count + 1);
tt_int_op(test_releases_count, OP_EQ, init_releases_count + 1);
/* Shut down channels */
channel_free_all();
ch1 = ch2 = NULL;
tt_int_op(test_doesnt_want_writes_count, OP_EQ,
init_doesnt_want_writes_count + 1);
/* channel_free() calls scheduler_release_channel() */
tt_int_op(test_releases_count, OP_EQ, init_releases_count + 4);
done:
free_fake_channel(ch1);
free_fake_channel(ch2);
UNMOCK(scheduler_channel_doesnt_want_writes);
UNMOCK(scheduler_release_channel);
}
static void
test_channel_dumpstats(void *arg)
{
channel_t *ch = NULL;
cell_t *cell = NULL;
packed_cell_t *p_cell = NULL;
int old_count;
(void)arg;
/* Mock these for duration of the test */
MOCK(scheduler_channel_doesnt_want_writes,
scheduler_channel_doesnt_want_writes_mock);
MOCK(scheduler_release_channel,
scheduler_release_channel_mock);
/* Set up a new fake channel */
ch = new_fake_channel();
tt_assert(ch);
/* Try to register it */
channel_register(ch);
tt_assert(ch->registered);
/* Set up mock */
dump_statistics_mock_target = ch;
dump_statistics_mock_matches = 0;
MOCK(channel_dump_statistics,
chan_test_channel_dump_statistics_mock);
/* Call channel_dumpstats() */
channel_dumpstats(LOG_DEBUG);
/* Assert that we hit the mock */
tt_int_op(dump_statistics_mock_matches, OP_EQ, 1);
/* Close the channel */
channel_mark_for_close(ch);
tt_int_op(ch->state, OP_EQ, CHANNEL_STATE_CLOSING);
chan_test_finish_close(ch);
tt_int_op(ch->state, OP_EQ, CHANNEL_STATE_CLOSED);
/* Try again and hit the finished channel */
channel_dumpstats(LOG_DEBUG);
tt_int_op(dump_statistics_mock_matches, OP_EQ, 2);
channel_run_cleanup();
ch = NULL;
/* Now we should hit nothing */
channel_dumpstats(LOG_DEBUG);
tt_int_op(dump_statistics_mock_matches, OP_EQ, 2);
/* Unmock */
UNMOCK(channel_dump_statistics);
dump_statistics_mock_target = NULL;
dump_statistics_mock_matches = 0;
/* Now make another channel */
ch = new_fake_channel();
tt_assert(ch);
channel_register(ch);
tt_int_op(ch->registered, OP_EQ, 1);
/* Lie about its age so dumpstats gets coverage for rate calculations */
ch->timestamp_created = time(NULL) - 30;
tt_int_op(ch->timestamp_created, OP_GT, 0);
tt_int_op(time(NULL), OP_GT, ch->timestamp_created);
/* Put cells through it both ways to make the counters non-zero */
p_cell = packed_cell_new();
test_chan_accept_cells = 1;
old_count = test_cells_written;
channel_write_packed_cell(ch, p_cell);
tt_int_op(test_cells_written, OP_EQ, old_count + 1);
tt_u64_op(ch->n_bytes_xmitted, OP_GT, 0);
tt_u64_op(ch->n_cells_xmitted, OP_GT, 0);
/* Receive path */
channel_set_cell_handlers(ch,
chan_test_cell_handler,
chan_test_var_cell_handler);
tt_ptr_op(channel_get_cell_handler(ch), OP_EQ, chan_test_cell_handler);
tt_ptr_op(channel_get_var_cell_handler(ch), OP_EQ,
chan_test_var_cell_handler);
cell = tor_malloc_zero(sizeof(*cell));
old_count = test_chan_fixed_cells_recved;
channel_process_cell(ch, cell);
tt_int_op(test_chan_fixed_cells_recved, OP_EQ, old_count + 1);
tt_u64_op(ch->n_bytes_recved, OP_GT, 0);
tt_u64_op(ch->n_cells_recved, OP_GT, 0);
/* Test channel_dump_statistics */
ch->describe_transport = chan_test_describe_transport;
ch->dumpstats = chan_test_dumpstats;
test_chan_should_be_canonical = 1;
ch->is_canonical = test_chan_is_canonical;
old_count = test_dumpstats_calls;
channel_dump_statistics(ch, LOG_DEBUG);
tt_int_op(test_dumpstats_calls, OP_EQ, old_count + 1);
/* Close the channel */
channel_mark_for_close(ch);
tt_int_op(ch->state, OP_EQ, CHANNEL_STATE_CLOSING);
chan_test_finish_close(ch);
tt_int_op(ch->state, OP_EQ, CHANNEL_STATE_CLOSED);
channel_run_cleanup();
ch = NULL;
done:
free_fake_channel(ch);
tor_free(cell);
UNMOCK(scheduler_channel_doesnt_want_writes);
UNMOCK(scheduler_release_channel);
return;
}
static void
test_channel_for_extend(void *arg)
{
channel_t *chan1 = NULL, *chan2 = NULL;
channel_t *ret_chan = NULL;
char digest[DIGEST_LEN];
ed25519_public_key_t ed_id;
tor_addr_t addr;
const char *msg;
int launch;
time_t now = time(NULL);
(void) arg;
memset(digest, 'A', sizeof(digest));
memset(&ed_id, 'B', sizeof(ed_id));
chan1 = new_fake_channel();
tt_assert(chan1);
/* Need to be registered to get added to the id map. */
channel_register(chan1);
tt_int_op(chan1->registered, OP_EQ, 1);
/* We need those for the test. */
chan1->is_canonical = test_chan_is_canonical;
chan1->matches_target = test_chan_matches_target;
chan1->timestamp_created = now - 9;
chan2 = new_fake_channel();
tt_assert(chan2);
/* Need to be registered to get added to the id map. */
channel_register(chan2);
tt_int_op(chan2->registered, OP_EQ, 1);
/* We need those for the test. */
chan2->is_canonical = test_chan_is_canonical;
chan2->matches_target = test_chan_matches_target;
/* Make it older than chan1. */
chan2->timestamp_created = chan1->timestamp_created - 1;
/* Set channel identities and add it to the channel map. The last one to be
* added is made the first one in the list so the lookup will always return
* that one first. */
channel_set_identity_digest(chan2, digest, &ed_id);
channel_set_identity_digest(chan1, digest, &ed_id);
tt_ptr_op(channel_find_by_remote_identity(digest, NULL), OP_EQ, chan1);
tt_ptr_op(channel_find_by_remote_identity(digest, &ed_id), OP_EQ, chan1);
/* The expected result is chan2 because it is older than chan1. */
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan2);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
/* Switch that around from previous test. */
chan2->timestamp_created = chan1->timestamp_created + 1;
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan1);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
/* Same creation time, num circuits will be used and they both have 0 so the
* channel 2 should be picked due to how channel_is_better() work. */
chan2->timestamp_created = chan1->timestamp_created;
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan1);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
/* For the rest of the tests, we need channel 1 to be the older. */
chan2->timestamp_created = chan1->timestamp_created + 1;
/* Condemned the older channel. */
chan1->state = CHANNEL_STATE_CLOSING;
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan2);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
chan1->state = CHANNEL_STATE_OPEN;
/* Make the older channel a client one. */
channel_mark_client(chan1);
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan2);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
channel_clear_client(chan1);
/* Non matching ed identity with valid digest. */
ed25519_public_key_t dumb_ed_id;
memset(&dumb_ed_id, 0, sizeof(dumb_ed_id));
ret_chan = channel_get_for_extend(digest, &dumb_ed_id, &addr, &msg,
&launch);
tt_assert(!ret_chan);
tt_str_op(msg, OP_EQ, "Not connected. Connecting.");
tt_int_op(launch, OP_EQ, 1);
/* Opening channel, we'll check if the target address matches. */
test_chan_should_match_target = 1;
chan1->state = CHANNEL_STATE_OPENING;
chan2->state = CHANNEL_STATE_OPENING;
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(!ret_chan);
tt_str_op(msg, OP_EQ, "Connection in progress; waiting.");
tt_int_op(launch, OP_EQ, 0);
chan1->state = CHANNEL_STATE_OPEN;
chan2->state = CHANNEL_STATE_OPEN;
/* Mark channel 1 as bad for circuits. */
channel_mark_bad_for_new_circs(chan1);
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(ret_chan);
tt_ptr_op(ret_chan, OP_EQ, chan2);
tt_int_op(launch, OP_EQ, 0);
tt_str_op(msg, OP_EQ, "Connection is fine; using it.");
chan1->is_bad_for_new_circs = 0;
/* Mark both channels as unusable. */
channel_mark_bad_for_new_circs(chan1);
channel_mark_bad_for_new_circs(chan2);
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(!ret_chan);
tt_str_op(msg, OP_EQ, "Connections all too old, or too non-canonical. "
" Launching a new one.");
tt_int_op(launch, OP_EQ, 1);
chan1->is_bad_for_new_circs = 0;
chan2->is_bad_for_new_circs = 0;
/* Non canonical channels. */
test_chan_should_match_target = 0;
test_chan_canonical_should_be_reliable = 1;
ret_chan = channel_get_for_extend(digest, &ed_id, &addr, &msg, &launch);
tt_assert(!ret_chan);
tt_str_op(msg, OP_EQ, "Connections all too old, or too non-canonical. "
" Launching a new one.");
tt_int_op(launch, OP_EQ, 1);
done:
free_fake_channel(chan1);
free_fake_channel(chan2);
}
static void
test_channel_duplicates(void *arg)
{
channel_t *chan = NULL;
routerstatus_t rs;
(void) arg;
setup_full_capture_of_logs(LOG_INFO);
/* Try a flat call with channel nor connections. */
channel_check_for_duplicates();
expect_log_msg_containing(
"Found 0 connections to 0 relays. Found 0 current canonical "
"connections, in 0 of which we were a non-canonical peer. "
"0 relays had more than 1 connection, 0 had more than 2, and "
"0 had more than 4 connections.");
mock_ns = tor_malloc_zero(sizeof(*mock_ns));
mock_ns->routerstatus_list = smartlist_new();
MOCK(networkstatus_get_latest_consensus,
mock_networkstatus_get_latest_consensus);
chan = new_fake_channel();
tt_assert(chan);
chan->is_canonical = test_chan_is_canonical;
memset(chan->identity_digest, 'A', sizeof(chan->identity_digest));
channel_add_to_digest_map(chan);
tt_ptr_op(channel_find_by_remote_identity(chan->identity_digest, NULL),
OP_EQ, chan);
/* No relay has been associated with this channel. */
channel_check_for_duplicates();
expect_log_msg_containing(
"Found 0 connections to 0 relays. Found 0 current canonical "
"connections, in 0 of which we were a non-canonical peer. "
"0 relays had more than 1 connection, 0 had more than 2, and "
"0 had more than 4 connections.");
/* Associate relay to this connection in the consensus. */
memset(&rs, 0, sizeof(rs));
memset(rs.identity_digest, 'A', sizeof(rs.identity_digest));
smartlist_add(mock_ns->routerstatus_list, &rs);
/* Non opened channel. */
chan->state = CHANNEL_STATE_CLOSING;
channel_check_for_duplicates();
expect_log_msg_containing(
"Found 0 connections to 0 relays. Found 0 current canonical "
"connections, in 0 of which we were a non-canonical peer. "
"0 relays had more than 1 connection, 0 had more than 2, and "
"0 had more than 4 connections.");
chan->state = CHANNEL_STATE_OPEN;
channel_check_for_duplicates();
expect_log_msg_containing(
"Found 1 connections to 1 relays. Found 0 current canonical "
"connections, in 0 of which we were a non-canonical peer. "
"0 relays had more than 1 connection, 0 had more than 2, and "
"0 had more than 4 connections.");
test_chan_should_be_canonical = 1;
channel_check_for_duplicates();
expect_log_msg_containing(
"Found 1 connections to 1 relays. Found 1 current canonical "
"connections, in 1 of which we were a non-canonical peer. "
"0 relays had more than 1 connection, 0 had more than 2, and "
"0 had more than 4 connections.");
teardown_capture_of_logs();
done:
free_fake_channel(chan);
smartlist_clear(mock_ns->routerstatus_list);
networkstatus_vote_free(mock_ns);
UNMOCK(networkstatus_get_latest_consensus);
}
static void
test_channel_id_map(void *arg)
{
(void)arg;
#define N_CHAN 6
char rsa_id[N_CHAN][DIGEST_LEN];
ed25519_public_key_t *ed_id[N_CHAN];
channel_t *chan[N_CHAN];
int i;
ed25519_public_key_t ed_zero;
memset(&ed_zero, 0, sizeof(ed_zero));
tt_int_op(DIGEST_LEN, OP_EQ, sizeof(rsa_id[0])); // Do I remember C?
for (i = 0; i < N_CHAN; ++i) {
crypto_rand(rsa_id[i], DIGEST_LEN);
ed_id[i] = tor_malloc_zero(sizeof(*ed_id[i]));
crypto_rand((char*)ed_id[i]->pubkey, sizeof(ed_id[i]->pubkey));
}
/* For channel 3, have no Ed identity. */
tor_free(ed_id[3]);
/* Channel 2 and 4 have same ROSA identity */
memcpy(rsa_id[4], rsa_id[2], DIGEST_LEN);
/* Channel 2 and 4 and 5 have same RSA identity */
memcpy(rsa_id[4], rsa_id[2], DIGEST_LEN);
memcpy(rsa_id[5], rsa_id[2], DIGEST_LEN);
/* Channels 2 and 5 have same Ed25519 identity */
memcpy(ed_id[5], ed_id[2], sizeof(*ed_id[2]));
for (i = 0; i < N_CHAN; ++i) {
chan[i] = new_fake_channel();
channel_register(chan[i]);
channel_set_identity_digest(chan[i], rsa_id[i], ed_id[i]);
}
/* Lookup by RSA id only */
tt_ptr_op(chan[0], OP_EQ,
channel_find_by_remote_identity(rsa_id[0], NULL));
tt_ptr_op(chan[1], OP_EQ,
channel_find_by_remote_identity(rsa_id[1], NULL));
tt_ptr_op(chan[3], OP_EQ,
channel_find_by_remote_identity(rsa_id[3], NULL));
channel_t *ch;
ch = channel_find_by_remote_identity(rsa_id[2], NULL);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_ptr_op(ch, OP_EQ, NULL);
/* As above, but with zero Ed25519 ID (meaning "any ID") */
tt_ptr_op(chan[0], OP_EQ,
channel_find_by_remote_identity(rsa_id[0], &ed_zero));
tt_ptr_op(chan[1], OP_EQ,
channel_find_by_remote_identity(rsa_id[1], &ed_zero));
tt_ptr_op(chan[3], OP_EQ,
channel_find_by_remote_identity(rsa_id[3], &ed_zero));
ch = channel_find_by_remote_identity(rsa_id[2], &ed_zero);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_assert(ch == chan[2] || ch == chan[4] || ch == chan[5]);
ch = channel_next_with_rsa_identity(ch);
tt_ptr_op(ch, OP_EQ, NULL);
/* Lookup nonexistent RSA identity */
tt_ptr_op(NULL, OP_EQ,
channel_find_by_remote_identity("!!!!!!!!!!!!!!!!!!!!", NULL));
/* Look up by full identity pair */
tt_ptr_op(chan[0], OP_EQ,
channel_find_by_remote_identity(rsa_id[0], ed_id[0]));
tt_ptr_op(chan[1], OP_EQ,
channel_find_by_remote_identity(rsa_id[1], ed_id[1]));
tt_ptr_op(chan[3], OP_EQ,
channel_find_by_remote_identity(rsa_id[3], ed_id[3] /*NULL*/));
tt_ptr_op(chan[4], OP_EQ,
channel_find_by_remote_identity(rsa_id[4], ed_id[4]));
ch = channel_find_by_remote_identity(rsa_id[2], ed_id[2]);
tt_assert(ch == chan[2] || ch == chan[5]);
/* Look up RSA identity with wrong ed25519 identity */
tt_ptr_op(NULL, OP_EQ,
channel_find_by_remote_identity(rsa_id[4], ed_id[0]));
tt_ptr_op(NULL, OP_EQ,
channel_find_by_remote_identity(rsa_id[2], ed_id[1]));
tt_ptr_op(NULL, OP_EQ,
channel_find_by_remote_identity(rsa_id[3], ed_id[1]));
done:
for (i = 0; i < N_CHAN; ++i) {
channel_clear_identity_digest(chan[i]);
channel_unregister(chan[i]);
free_fake_channel(chan[i]);
tor_free(ed_id[i]);
}
#undef N_CHAN
}
static void
test_relay_close_circuit(void *arg)
{
channel_t *nchan = NULL, *pchan = NULL;
or_circuit_t *orcirc = NULL;
cell_t *cell = NULL;
int old_count, new_count;
(void)arg;
/* Make fake channels to be nchan and pchan for the circuit */
nchan = new_fake_channel();
tt_assert(nchan);
pchan = new_fake_channel();
tt_assert(pchan);
/* Make a fake orcirc */
orcirc = new_fake_orcirc(nchan, pchan);
tt_assert(orcirc);
circuitmux_attach_circuit(nchan->cmux, TO_CIRCUIT(orcirc),
CELL_DIRECTION_OUT);
circuitmux_attach_circuit(pchan->cmux, TO_CIRCUIT(orcirc),
CELL_DIRECTION_IN);
/* Make a cell */
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
MOCK(scheduler_channel_has_waiting_cells,
scheduler_channel_has_waiting_cells_mock);
MOCK(assert_circuit_ok,
assert_circuit_ok_mock);
/* Append it */
old_count = get_mock_scheduler_has_waiting_cells_count();
append_cell_to_circuit_queue(TO_CIRCUIT(orcirc), nchan, cell,
CELL_DIRECTION_OUT, 0);
new_count = get_mock_scheduler_has_waiting_cells_count();
tt_int_op(new_count, OP_EQ, old_count + 1);
/* Now try the reverse direction */
old_count = get_mock_scheduler_has_waiting_cells_count();
append_cell_to_circuit_queue(TO_CIRCUIT(orcirc), pchan, cell,
CELL_DIRECTION_IN, 0);
new_count = get_mock_scheduler_has_waiting_cells_count();
tt_int_op(new_count, OP_EQ, old_count + 1);
/* Ensure our write totals are 0 */
tt_u64_op(find_largest_max(write_array), OP_EQ, 0);
/* Mark the circuit for close */
circuit_mark_for_close(TO_CIRCUIT(orcirc), 0);
/* Check our write totals. */
advance_obs(write_array);
commit_max(write_array);
/* Check for two cells plus overhead */
tt_u64_op(find_largest_max(write_array), OP_EQ,
2*(get_cell_network_size(nchan->wide_circ_ids)
+TLS_PER_CELL_OVERHEAD));
UNMOCK(scheduler_channel_has_waiting_cells);
/* Get rid of the fake channels */
MOCK(scheduler_release_channel, scheduler_release_channel_mock);
channel_mark_for_close(nchan);
channel_mark_for_close(pchan);
UNMOCK(scheduler_release_channel);
/* Shut down channels */
channel_free_all();
done:
tor_free(cell);
if (orcirc) {
circuitmux_detach_circuit(nchan->cmux, TO_CIRCUIT(orcirc));
circuitmux_detach_circuit(pchan->cmux, TO_CIRCUIT(orcirc));
cell_queue_clear(&orcirc->base_.n_chan_cells);
cell_queue_clear(&orcirc->p_chan_cells);
}
tor_free(orcirc);
free_fake_channel(nchan);
free_fake_channel(pchan);
UNMOCK(assert_circuit_ok);
return;
}
static void
test_relay_append_cell_to_circuit_queue(void *arg)
{
channel_t *nchan = NULL, *pchan = NULL;
or_circuit_t *orcirc = NULL;
cell_t *cell = NULL;
int old_count, new_count;
(void)arg;
/* Make fake channels to be nchan and pchan for the circuit */
nchan = new_fake_channel();
tt_assert(nchan);
pchan = new_fake_channel();
tt_assert(pchan);
/* Make a fake orcirc */
orcirc = new_fake_orcirc(nchan, pchan);
tt_assert(orcirc);
circuitmux_attach_circuit(nchan->cmux, TO_CIRCUIT(orcirc),
CELL_DIRECTION_OUT);
circuitmux_attach_circuit(pchan->cmux, TO_CIRCUIT(orcirc),
CELL_DIRECTION_IN);
/* Make a cell */
cell = tor_malloc_zero(sizeof(cell_t));
make_fake_cell(cell);
MOCK(scheduler_channel_has_waiting_cells,
scheduler_channel_has_waiting_cells_mock);
/* Append it */
old_count = get_mock_scheduler_has_waiting_cells_count();
append_cell_to_circuit_queue(TO_CIRCUIT(orcirc), nchan, cell,
CELL_DIRECTION_OUT, 0);
new_count = get_mock_scheduler_has_waiting_cells_count();
tt_int_op(new_count, OP_EQ, old_count + 1);
/* Now try the reverse direction */
old_count = get_mock_scheduler_has_waiting_cells_count();
append_cell_to_circuit_queue(TO_CIRCUIT(orcirc), pchan, cell,
CELL_DIRECTION_IN, 0);
new_count = get_mock_scheduler_has_waiting_cells_count();
tt_int_op(new_count, OP_EQ, old_count + 1);
UNMOCK(scheduler_channel_has_waiting_cells);
/* Get rid of the fake channels */
MOCK(scheduler_release_channel, scheduler_release_channel_mock);
channel_mark_for_close(nchan);
channel_mark_for_close(pchan);
UNMOCK(scheduler_release_channel);
/* Shut down channels */
channel_free_all();
done:
tor_free(cell);
if (orcirc) {
circuitmux_detach_circuit(nchan->cmux, TO_CIRCUIT(orcirc));
circuitmux_detach_circuit(pchan->cmux, TO_CIRCUIT(orcirc));
cell_queue_clear(&orcirc->base_.n_chan_cells);
cell_queue_clear(&orcirc->p_chan_cells);
}
tor_free(orcirc);
free_fake_channel(nchan);
free_fake_channel(pchan);
return;
}
