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test/circuitbuild: Add a test for extend_state_valid

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Part of 33633.
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teor 2020-04-01 22:36:33 +10:00
parent 7261078566
commit eb11c9d07c
1 changed files with 85 additions and 0 deletions
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85
src/test/test_circuitbuild.c
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@ -14,12 +14,16 @@
#include "app/config/config.h"
#include "core/or/circuitbuild.h"
#include "core/or/circuitlist.h"
#include "core/or/channel.h"
#include "core/or/cpath_build_state_st.h"
#include "core/or/extend_info_st.h"
#include "core/or/origin_circuit_st.h"
#include "core/or/or_circuit_st.h"
#include "feature/client/entrynodes.h"
#include "feature/relay/circuitbuild_relay.h"
#include "feature/relay/routermode.h"
/* Dummy nodes smartlist for testing */
static smartlist_t dummy_nodes;
@ -180,17 +184,98 @@ test_upgrade_from_guard_wait(void *arg)
entry_guard_free_(guard);
}
static int server = 0;
static int
mock_server_mode(const or_options_t *options)
{
(void)options;
return server;
}
/* Test the different cases in circuit_extend_state_valid_helper(). */
static void
test_circuit_extend_state_valid(void *arg)
{
(void)arg;
circuit_t *circ = tor_malloc_zero(sizeof(circuit_t));
server = 0;
MOCK(server_mode, mock_server_mode);
setup_full_capture_of_logs(LOG_INFO);
/* Clients can't extend */
server = 0;
tt_int_op(circuit_extend_state_valid_helper(NULL), OP_EQ, -1);
expect_log_msg("Got an extend cell, but running as a client. Closing.\n");
mock_clean_saved_logs();
/* Circuit must be non-NULL */
tor_capture_bugs_(1);
server = 1;
tt_int_op(circuit_extend_state_valid_helper(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();
/* n_chan and n_hop are NULL, this should succeed */
server = 1;
tt_int_op(circuit_extend_state_valid_helper(circ), OP_EQ, 0);
mock_clean_saved_logs();
/* But clients still can't extend */
server = 0;
tt_int_op(circuit_extend_state_valid_helper(circ), OP_EQ, -1);
expect_log_msg("Got an extend cell, but running as a client. Closing.\n");
mock_clean_saved_logs();
/* n_chan must be NULL */
circ->n_chan = tor_malloc_zero(sizeof(channel_t));
server = 1;
tt_int_op(circuit_extend_state_valid_helper(circ), OP_EQ, -1);
expect_log_msg("n_chan already set. Bug/attack. Closing.\n");
mock_clean_saved_logs();
tor_free(circ->n_chan);
/* n_hop must be NULL */
circ->n_hop = tor_malloc_zero(sizeof(extend_info_t));
server = 1;
tt_int_op(circuit_extend_state_valid_helper(circ), OP_EQ, -1);
expect_log_msg("conn to next hop already launched. Bug/attack. Closing.\n");
mock_clean_saved_logs();
tor_free(circ->n_hop);
done:
tor_end_capture_bugs_();
teardown_capture_of_logs();
UNMOCK(server_mode);
server = 0;
tor_free(circ->n_chan);
tor_free(circ->n_hop);
tor_free(circ);
}
#define TEST(name, flags, setup, cleanup) \
{ #name, test_ ## name, flags, setup, cleanup }
#define TEST_NEW_ROUTE_LEN(name, flags) \
{ #name, test_new_route_len_ ## name, flags, NULL, NULL }
#define TEST_CIRCUIT(name, flags) \
{ #name, test_circuit_ ## name, flags, NULL, NULL }
struct testcase_t circuitbuild_tests[] = {
TEST_NEW_ROUTE_LEN(noexit, 0),
TEST_NEW_ROUTE_LEN(safe_exit, 0),
TEST_NEW_ROUTE_LEN(unsafe_exit, 0),
TEST_NEW_ROUTE_LEN(unhandled_exit, 0),
TEST(upgrade_from_guard_wait, TT_FORK, &helper_pubsub_setup, NULL),
TEST_CIRCUIT(extend_state_valid, 0),
END_OF_TESTCASES
};