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/* Copyright (c) 2014-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#define CIRCUITBUILD_PRIVATE
#define RELAY_PRIVATE
#define REPHIST_PRIVATE
#include "core/or/or.h"
#include "core/or/circuitbuild.h"
#include "core/or/circuitlist.h"
#include "core/or/channeltls.h"
#include "feature/stats/rephist.h"
#include "core/or/relay.h"
#include "lib/container/order.h"
/* For init/free stuff */
#include "core/or/scheduler.h"
#include "core/or/cell_st.h"
#include "core/or/or_circuit_st.h"
/* Test suite stuff */
#include "test/test.h"
#include "test/fakechans.h"
#include "test/fakecircs.h"
static void test_relay_append_cell_to_circuit_queue(void *arg);
static void
assert_circuit_ok_mock(const circuit_t *c)
{
(void) c;
return;
}
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);
}
free_fake_orcirc(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);
}
free_fake_orcirc(orcirc);
free_fake_channel(nchan);
free_fake_channel(pchan);
return;
}
struct testcase_t relay_tests[] = {
{ "append_cell_to_circuit_queue", test_relay_append_cell_to_circuit_queue,
TT_FORK, NULL, NULL },
{ "close_circ_rephist", test_relay_close_circuit,
TT_FORK, NULL, NULL },
END_OF_TESTCASES
};
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