mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-28 14:23:30 +01:00
test/circuitbuild: Add tests for circuit_extend()
Part of 33633.
This commit is contained in:
teor
parent
2b66429fcf
commit
6d75f3244f
@ -21,6 +21,7 @@
|
|||||||
#include "core/or/circuitlist.h"
|
#include "core/or/circuitlist.h"
|
||||||
#include "core/or/onion.h"
|
#include "core/or/onion.h"
|
||||||
|
|
||||||
|
#include "core/or/cell_st.h"
|
||||||
#include "core/or/cpath_build_state_st.h"
|
#include "core/or/cpath_build_state_st.h"
|
||||||
#include "core/or/extend_info_st.h"
|
#include "core/or/extend_info_st.h"
|
||||||
#include "core/or/origin_circuit_st.h"
|
#include "core/or/origin_circuit_st.h"
|
||||||
@ -841,6 +842,318 @@ test_circuit_open_connection_for_extend(void *arg)
|
|||||||
tor_free(fake_n_chan);
|
tor_free(fake_n_chan);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* Guaranteed to be initialised to zero. */
|
||||||
|
static extend_cell_t mock_extend_cell_parse_cell_out;
|
||||||
|
static int mock_extend_cell_parse_result = 0;
|
||||||
|
static int mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
static int
|
||||||
|
mock_extend_cell_parse(extend_cell_t *cell_out,
|
||||||
|
const uint8_t command,
|
||||||
|
const uint8_t *payload_in,
|
||||||
|
size_t payload_len)
|
||||||
|
{
|
||||||
|
(void)command;
|
||||||
|
(void)payload_in;
|
||||||
|
(void)payload_len;
|
||||||
|
|
||||||
|
mock_extend_cell_parse_calls++;
|
||||||
|
memcpy(cell_out, &mock_extend_cell_parse_cell_out,
|
||||||
|
sizeof(extend_cell_t));
|
||||||
|
return mock_extend_cell_parse_result;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int mock_channel_get_for_extend_calls = 0;
|
||||||
|
static int mock_channel_get_for_extend_launch_out = 0;
|
||||||
|
static channel_t *mock_channel_get_for_extend_nchan = NULL;
|
||||||
|
static channel_t *
|
||||||
|
mock_channel_get_for_extend(const char *rsa_id_digest,
|
||||||
|
const ed25519_public_key_t *ed_id,
|
||||||
|
const tor_addr_t *target_addr,
|
||||||
|
const char **msg_out,
|
||||||
|
int *launch_out)
|
||||||
|
{
|
||||||
|
(void)rsa_id_digest;
|
||||||
|
(void)ed_id;
|
||||||
|
(void)target_addr;
|
||||||
|
|
||||||
|
/* channel_get_for_extend() requires non-NULL arguments */
|
||||||
|
tt_ptr_op(msg_out, OP_NE, NULL);
|
||||||
|
tt_ptr_op(launch_out, OP_NE, NULL);
|
||||||
|
|
||||||
|
mock_channel_get_for_extend_calls++;
|
||||||
|
*msg_out = NULL;
|
||||||
|
*launch_out = mock_channel_get_for_extend_launch_out;
|
||||||
|
return mock_channel_get_for_extend_nchan;
|
||||||
|
|
||||||
|
done:
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const char *
|
||||||
|
mock_channel_get_canonical_remote_descr(channel_t *chan)
|
||||||
|
{
|
||||||
|
(void)chan;
|
||||||
|
return "mock_channel_get_canonical_remote_descr()";
|
||||||
|
}
|
||||||
|
|
||||||
|
static int mock_circuit_deliver_create_cell_calls = 0;
|
||||||
|
static int mock_circuit_deliver_create_cell_result = 0;
|
||||||
|
static int
|
||||||
|
mock_circuit_deliver_create_cell(circuit_t *circ,
|
||||||
|
const struct create_cell_t *create_cell,
|
||||||
|
int relayed)
|
||||||
|
{
|
||||||
|
(void)create_cell;
|
||||||
|
|
||||||
|
/* circuit_deliver_create_cell() requires non-NULL arguments,
|
||||||
|
* but we only check circ and circ->n_chan here. */
|
||||||
|
tt_ptr_op(circ, OP_NE, NULL);
|
||||||
|
tt_ptr_op(circ->n_chan, OP_NE, NULL);
|
||||||
|
|
||||||
|
/* We should only ever get relayed cells from extends */
|
||||||
|
tt_int_op(relayed, OP_EQ, 1);
|
||||||
|
|
||||||
|
mock_circuit_deliver_create_cell_calls++;
|
||||||
|
return mock_circuit_deliver_create_cell_result;
|
||||||
|
|
||||||
|
done:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Test the different cases in circuit_extend(). */
|
||||||
|
static void
|
||||||
|
test_circuit_extend(void *arg)
|
||||||
|
{
|
||||||
|
(void)arg;
|
||||||
|
cell_t *cell = tor_malloc_zero(sizeof(cell_t));
|
||||||
|
channel_t *p_chan = tor_malloc_zero(sizeof(channel_t));
|
||||||
|
or_circuit_t *or_circ = tor_malloc_zero(sizeof(or_circuit_t));
|
||||||
|
circuit_t *circ = TO_CIRCUIT(or_circ);
|
||||||
|
channel_t *fake_n_chan = tor_malloc_zero(sizeof(channel_t));
|
||||||
|
|
||||||
|
server = 0;
|
||||||
|
MOCK(server_mode, mock_server_mode);
|
||||||
|
|
||||||
|
/* Mock a debug function, but otherwise ignore it */
|
||||||
|
MOCK(channel_get_canonical_remote_descr,
|
||||||
|
mock_channel_get_canonical_remote_descr);
|
||||||
|
|
||||||
|
setup_full_capture_of_logs(LOG_INFO);
|
||||||
|
|
||||||
|
/* Circuit must be non-NULL */
|
||||||
|
tor_capture_bugs_(1);
|
||||||
|
tt_int_op(circuit_extend(cell, NULL), OP_EQ, -1);
|
||||||
|
tt_int_op(smartlist_len(tor_get_captured_bug_log_()), OP_EQ, 1);
|
||||||
|
tt_str_op(smartlist_get(tor_get_captured_bug_log_(), 0), OP_EQ,
|
||||||
|
"!(ASSERT_PREDICT_UNLIKELY_(!circ))");
|
||||||
|
tor_end_capture_bugs_();
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
|
||||||
|
/* Cell must be non-NULL */
|
||||||
|
tor_capture_bugs_(1);
|
||||||
|
tt_int_op(circuit_extend(NULL, circ), OP_EQ, -1);
|
||||||
|
tt_int_op(smartlist_len(tor_get_captured_bug_log_()), OP_EQ, 1);
|
||||||
|
tt_str_op(smartlist_get(tor_get_captured_bug_log_(), 0), OP_EQ,
|
||||||
|
"!(ASSERT_PREDICT_UNLIKELY_(!cell))");
|
||||||
|
tor_end_capture_bugs_();
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
|
||||||
|
/* Extend cell and circuit must be non-NULL */
|
||||||
|
tor_capture_bugs_(1);
|
||||||
|
tt_int_op(circuit_extend(NULL, NULL), OP_EQ, -1);
|
||||||
|
/* Since we're using IF_BUG_ONCE(), we might not log any bugs */
|
||||||
|
tt_int_op(smartlist_len(tor_get_captured_bug_log_()), OP_GE, 0);
|
||||||
|
tt_int_op(smartlist_len(tor_get_captured_bug_log_()), OP_LE, 2);
|
||||||
|
tor_end_capture_bugs_();
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
|
||||||
|
/* Clients can't extend */
|
||||||
|
server = 0;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
expect_log_msg("Got an extend cell, but running as a client. Closing.\n");
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
|
||||||
|
/* But servers can. Unpack the cell, but fail parsing. */
|
||||||
|
server = 1;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
expect_log_msg("Can't parse extend cell. Closing circuit.\n");
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
|
||||||
|
/* Now mock parsing */
|
||||||
|
MOCK(extend_cell_parse, mock_extend_cell_parse);
|
||||||
|
|
||||||
|
/* And make parsing succeed, but fail on adding ed25519 */
|
||||||
|
memset(&mock_extend_cell_parse_cell_out, 0,
|
||||||
|
sizeof(mock_extend_cell_parse_cell_out));
|
||||||
|
mock_extend_cell_parse_result = 0;
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
expect_log_msg(
|
||||||
|
"Client asked me to extend without specifying an id_digest.\n");
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
/* Now add a node_id. Fail the lspec check because IPv4 and port are zero. */
|
||||||
|
memset(&mock_extend_cell_parse_cell_out.node_id, 0xAA,
|
||||||
|
sizeof(mock_extend_cell_parse_cell_out.node_id));
|
||||||
|
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
expect_log_msg("Client asked me to extend to "
|
||||||
|
"zero destination port or addr.\n");
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
/* Now add a valid IPv4 and port. Fail the OR circuit magic check. */
|
||||||
|
tor_addr_parse(&mock_extend_cell_parse_cell_out.orport_ipv4.addr,
|
||||||
|
PUBLIC_IPV4);
|
||||||
|
mock_extend_cell_parse_cell_out.orport_ipv4.port = VALID_PORT;
|
||||||
|
|
||||||
|
tor_capture_bugs_(1);
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(smartlist_len(tor_get_captured_bug_log_()), OP_EQ, 1);
|
||||||
|
tt_str_op(smartlist_get(tor_get_captured_bug_log_(), 0), OP_EQ,
|
||||||
|
"!(ASSERT_PREDICT_UNLIKELY_(circ->magic != 0x98ABC04Fu))");
|
||||||
|
tor_end_capture_bugs_();
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
/* Now add the right magic and a p_chan. */
|
||||||
|
or_circ->base_.magic = OR_CIRCUIT_MAGIC;
|
||||||
|
or_circ->p_chan = p_chan;
|
||||||
|
|
||||||
|
/* Mock channel_get_for_extend(), so it doesn't crash. */
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
MOCK(channel_get_for_extend, mock_channel_get_for_extend);
|
||||||
|
|
||||||
|
/* Test circuit not established, but don't launch another one */
|
||||||
|
mock_channel_get_for_extend_launch_out = 0;
|
||||||
|
mock_channel_get_for_extend_nchan = NULL;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, 0);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_get_for_extend_calls, OP_EQ, 1);
|
||||||
|
|
||||||
|
/* cleanup */
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
/* circ and or_circ are the same object */
|
||||||
|
tor_free(circ->n_hop);
|
||||||
|
tor_free(circ->n_chan_create_cell);
|
||||||
|
|
||||||
|
/* Mock channel_connect_for_circuit(), so we don't crash */
|
||||||
|
mock_channel_connect_calls = 0;
|
||||||
|
MOCK(channel_connect_for_circuit, mock_channel_connect_for_circuit);
|
||||||
|
|
||||||
|
/* Test circuit not established, and successful launch of a channel */
|
||||||
|
mock_channel_get_for_extend_launch_out = 1;
|
||||||
|
mock_channel_get_for_extend_nchan = NULL;
|
||||||
|
mock_channel_connect_nchan = fake_n_chan;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, 0);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_get_for_extend_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_connect_calls, OP_EQ, 1);
|
||||||
|
|
||||||
|
/* cleanup */
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
mock_channel_connect_calls = 0;
|
||||||
|
/* circ and or_circ are the same object */
|
||||||
|
tor_free(circ->n_hop);
|
||||||
|
tor_free(circ->n_chan_create_cell);
|
||||||
|
|
||||||
|
/* Mock circuit_deliver_create_cell(), so it doesn't crash */
|
||||||
|
mock_circuit_deliver_create_cell_calls = 0;
|
||||||
|
MOCK(circuit_deliver_create_cell, mock_circuit_deliver_create_cell);
|
||||||
|
|
||||||
|
/* Test circuit established, re-using channel, successful delivery */
|
||||||
|
mock_channel_get_for_extend_launch_out = 0;
|
||||||
|
mock_channel_get_for_extend_nchan = fake_n_chan;
|
||||||
|
mock_channel_connect_nchan = NULL;
|
||||||
|
mock_circuit_deliver_create_cell_result = 0;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, 0);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_get_for_extend_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_connect_calls, OP_EQ, 0);
|
||||||
|
tt_int_op(mock_circuit_deliver_create_cell_calls, OP_EQ, 1);
|
||||||
|
tt_ptr_op(circ->n_chan, OP_EQ, fake_n_chan);
|
||||||
|
|
||||||
|
/* cleanup */
|
||||||
|
circ->n_chan = NULL;
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
mock_channel_connect_calls = 0;
|
||||||
|
mock_circuit_deliver_create_cell_calls = 0;
|
||||||
|
/* circ and or_circ are the same object */
|
||||||
|
tor_free(circ->n_hop);
|
||||||
|
tor_free(circ->n_chan_create_cell);
|
||||||
|
|
||||||
|
/* Test circuit established, re-using channel, failed delivery */
|
||||||
|
mock_channel_get_for_extend_launch_out = 0;
|
||||||
|
mock_channel_get_for_extend_nchan = fake_n_chan;
|
||||||
|
mock_channel_connect_nchan = NULL;
|
||||||
|
mock_circuit_deliver_create_cell_result = -1;
|
||||||
|
tt_int_op(circuit_extend(cell, circ), OP_EQ, -1);
|
||||||
|
tt_int_op(mock_extend_cell_parse_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_get_for_extend_calls, OP_EQ, 1);
|
||||||
|
tt_int_op(mock_channel_connect_calls, OP_EQ, 0);
|
||||||
|
tt_int_op(mock_circuit_deliver_create_cell_calls, OP_EQ, 1);
|
||||||
|
tt_ptr_op(circ->n_chan, OP_EQ, fake_n_chan);
|
||||||
|
|
||||||
|
/* cleanup */
|
||||||
|
circ->n_chan = NULL;
|
||||||
|
mock_clean_saved_logs();
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
mock_channel_connect_calls = 0;
|
||||||
|
mock_circuit_deliver_create_cell_calls = 0;
|
||||||
|
/* circ and or_circ are the same object */
|
||||||
|
tor_free(circ->n_hop);
|
||||||
|
tor_free(circ->n_chan_create_cell);
|
||||||
|
|
||||||
|
done:
|
||||||
|
tor_end_capture_bugs_();
|
||||||
|
teardown_capture_of_logs();
|
||||||
|
|
||||||
|
UNMOCK(server_mode);
|
||||||
|
server = 0;
|
||||||
|
|
||||||
|
UNMOCK(channel_get_canonical_remote_descr);
|
||||||
|
|
||||||
|
UNMOCK(extend_cell_parse);
|
||||||
|
memset(&mock_extend_cell_parse_cell_out, 0,
|
||||||
|
sizeof(mock_extend_cell_parse_cell_out));
|
||||||
|
mock_extend_cell_parse_result = 0;
|
||||||
|
mock_extend_cell_parse_calls = 0;
|
||||||
|
|
||||||
|
UNMOCK(channel_get_for_extend);
|
||||||
|
mock_channel_get_for_extend_calls = 0;
|
||||||
|
mock_channel_get_for_extend_launch_out = 0;
|
||||||
|
mock_channel_get_for_extend_nchan = NULL;
|
||||||
|
|
||||||
|
UNMOCK(channel_connect_for_circuit);
|
||||||
|
mock_channel_connect_calls = 0;
|
||||||
|
mock_channel_connect_nchan = NULL;
|
||||||
|
|
||||||
|
UNMOCK(circuit_deliver_create_cell);
|
||||||
|
mock_circuit_deliver_create_cell_calls = 0;
|
||||||
|
mock_circuit_deliver_create_cell_result = 0;
|
||||||
|
|
||||||
|
tor_free(cell);
|
||||||
|
/* circ and or_circ are the same object */
|
||||||
|
tor_free(circ->n_hop);
|
||||||
|
tor_free(circ->n_chan_create_cell);
|
||||||
|
tor_free(or_circ);
|
||||||
|
tor_free(p_chan);
|
||||||
|
tor_free(fake_n_chan);
|
||||||
|
}
|
||||||
|
|
||||||
#define TEST(name, flags, setup, cleanup) \
|
#define TEST(name, flags, setup, cleanup) \
|
||||||
{ #name, test_ ## name, flags, setup, cleanup }
|
{ #name, test_ ## name, flags, setup, cleanup }
|
||||||
|
|
||||||
@ -862,5 +1175,6 @@ struct testcase_t circuitbuild_tests[] = {
|
|||||||
TEST_CIRCUIT(extend_add_ed25519, TT_FORK),
|
TEST_CIRCUIT(extend_add_ed25519, TT_FORK),
|
||||||
TEST_CIRCUIT(extend_lspec_valid, TT_FORK),
|
TEST_CIRCUIT(extend_lspec_valid, TT_FORK),
|
||||||
TEST_CIRCUIT(open_connection_for_extend, TT_FORK),
|
TEST_CIRCUIT(open_connection_for_extend, TT_FORK),
|
||||||
|
TEST_CIRCUIT(extend, TT_FORK),
|
||||||
END_OF_TESTCASES
|
END_OF_TESTCASES
|
||||||
};
|
};
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user