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207 lines
6.7 KiB
C
207 lines
6.7 KiB
C
/* Copyright (c) 2017-2019, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#define CIRCUITBUILD_PRIVATE
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#define CIRCUITSTATS_PRIVATE
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#define CIRCUITLIST_PRIVATE
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#define CHANNEL_PRIVATE_
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#include "core/or/or.h"
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#include "test/test.h"
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#include "test/test_helpers.h"
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#include "test/log_test_helpers.h"
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#include "app/config/config.h"
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#include "core/or/circuitlist.h"
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#include "core/or/circuitbuild.h"
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#include "core/or/circuitstats.h"
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#include "core/or/circuituse.h"
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#include "core/or/channel.h"
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#include "core/or/cpath_build_state_st.h"
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#include "core/or/crypt_path_st.h"
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#include "core/or/extend_info_st.h"
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#include "core/or/origin_circuit_st.h"
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void test_circuitstats_timeout(void *arg);
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void test_circuitstats_hoplen(void *arg);
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origin_circuit_t *subtest_fourhop_circuit(struct timeval, int);
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origin_circuit_t *add_opened_threehop(void);
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origin_circuit_t *build_unopened_fourhop(struct timeval);
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int onion_append_hop(crypt_path_t **head_ptr, extend_info_t *choice);
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static int marked_for_close;
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/* Mock function because we are not trying to test the close circuit that does
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* an awful lot of checks on the circuit object. */
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static void
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mock_circuit_mark_for_close(circuit_t *circ, int reason, int line,
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const char *file)
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{
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(void) circ;
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(void) reason;
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(void) line;
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(void) file;
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marked_for_close = 1;
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return;
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}
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origin_circuit_t *
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add_opened_threehop(void)
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{
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origin_circuit_t *or_circ = origin_circuit_new();
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extend_info_t fakehop;
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memset(&fakehop, 0, sizeof(fakehop));
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TO_CIRCUIT(or_circ)->purpose = CIRCUIT_PURPOSE_C_GENERAL;
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or_circ->build_state = tor_malloc_zero(sizeof(cpath_build_state_t));
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or_circ->build_state->desired_path_len = DEFAULT_ROUTE_LEN;
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onion_append_hop(&or_circ->cpath, &fakehop);
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onion_append_hop(&or_circ->cpath, &fakehop);
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onion_append_hop(&or_circ->cpath, &fakehop);
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or_circ->has_opened = 1;
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TO_CIRCUIT(or_circ)->state = CIRCUIT_STATE_OPEN;
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TO_CIRCUIT(or_circ)->purpose = CIRCUIT_PURPOSE_C_GENERAL;
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return or_circ;
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}
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origin_circuit_t *
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build_unopened_fourhop(struct timeval circ_start_time)
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{
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origin_circuit_t *or_circ = origin_circuit_new();
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extend_info_t *fakehop = tor_malloc_zero(sizeof(extend_info_t));
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memset(fakehop, 0, sizeof(extend_info_t));
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TO_CIRCUIT(or_circ)->purpose = CIRCUIT_PURPOSE_C_GENERAL;
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TO_CIRCUIT(or_circ)->timestamp_began = circ_start_time;
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TO_CIRCUIT(or_circ)->timestamp_created = circ_start_time;
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or_circ->build_state = tor_malloc_zero(sizeof(cpath_build_state_t));
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or_circ->build_state->desired_path_len = 4;
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onion_append_hop(&or_circ->cpath, fakehop);
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onion_append_hop(&or_circ->cpath, fakehop);
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onion_append_hop(&or_circ->cpath, fakehop);
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onion_append_hop(&or_circ->cpath, fakehop);
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tor_free(fakehop);
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return or_circ;
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}
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origin_circuit_t *
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subtest_fourhop_circuit(struct timeval circ_start_time, int should_timeout)
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{
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origin_circuit_t *or_circ = build_unopened_fourhop(circ_start_time);
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// Now make them open one at a time and call
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// circuit_build_times_handle_completed_hop();
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or_circ->cpath->state = CPATH_STATE_OPEN;
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circuit_build_times_handle_completed_hop(or_circ);
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 0);
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or_circ->cpath->next->state = CPATH_STATE_OPEN;
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circuit_build_times_handle_completed_hop(or_circ);
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 0);
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// Third hop: We should count it now.
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or_circ->cpath->next->next->state = CPATH_STATE_OPEN;
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circuit_build_times_handle_completed_hop(or_circ);
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ,
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!should_timeout); // 1 if counted, 0 otherwise
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// Fourth hop: Don't double count
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or_circ->cpath->next->next->next->state = CPATH_STATE_OPEN;
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circuit_build_times_handle_completed_hop(or_circ);
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ,
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!should_timeout);
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done:
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return or_circ;
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}
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void
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test_circuitstats_hoplen(void *arg)
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{
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/* Plan:
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* 0. Test no other opened circs (relaxed timeout)
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* 1. Check >3 hop circ building w/o timeout
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* 2. Check >3 hop circs w/ timeouts..
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*/
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struct timeval circ_start_time;
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origin_circuit_t *threehop = NULL;
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origin_circuit_t *fourhop = NULL;
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(void)arg;
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MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
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circuit_build_times_init(get_circuit_build_times_mutable());
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// Let's set a close_ms to 2X the initial timeout, so we can
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// test relaxed functionality (which uses the close_ms timeout)
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get_circuit_build_times_mutable()->close_ms *= 2;
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tor_gettimeofday(&circ_start_time);
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circ_start_time.tv_sec -= 119; // make us hit "relaxed" cutoff
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// Test 1: Build a fourhop circuit that should get marked
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// as relaxed and eventually counted by circuit_expire_building
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// (but not before)
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fourhop = subtest_fourhop_circuit(circ_start_time, 0);
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tt_int_op(fourhop->relaxed_timeout, OP_EQ, 0);
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tt_int_op(marked_for_close, OP_EQ, 0);
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circuit_expire_building();
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tt_int_op(marked_for_close, OP_EQ, 0);
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tt_int_op(fourhop->relaxed_timeout, OP_EQ, 1);
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TO_CIRCUIT(fourhop)->timestamp_began.tv_sec -= 119;
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circuit_expire_building();
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 1);
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tt_int_op(marked_for_close, OP_EQ, 1);
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circuit_free_(TO_CIRCUIT(fourhop));
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circuit_build_times_reset(get_circuit_build_times_mutable());
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// Test 2: Add a threehop circuit for non-relaxed timeouts
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threehop = add_opened_threehop();
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/* This circuit should not timeout */
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tor_gettimeofday(&circ_start_time);
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circ_start_time.tv_sec -= 59;
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fourhop = subtest_fourhop_circuit(circ_start_time, 0);
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circuit_expire_building();
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 1);
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tt_int_op(TO_CIRCUIT(fourhop)->purpose, OP_NE,
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CIRCUIT_PURPOSE_C_MEASURE_TIMEOUT);
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circuit_free_((circuit_t *)fourhop);
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circuit_build_times_reset(get_circuit_build_times_mutable());
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/* Test 3: This circuit should now time out and get marked as a
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* measurement circuit, but still get counted (and counted only once)
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*/
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circ_start_time.tv_sec -= 2;
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fourhop = subtest_fourhop_circuit(circ_start_time, 0);
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tt_int_op(TO_CIRCUIT(fourhop)->purpose, OP_EQ,
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CIRCUIT_PURPOSE_C_MEASURE_TIMEOUT);
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 1);
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circuit_expire_building();
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tt_int_op(get_circuit_build_times()->total_build_times, OP_EQ, 1);
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done:
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UNMOCK(circuit_mark_for_close_);
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circuit_free_(TO_CIRCUIT(threehop));
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circuit_free_(TO_CIRCUIT(fourhop));
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circuit_build_times_free_timeouts(get_circuit_build_times_mutable());
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}
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#define TEST_CIRCUITSTATS(name, flags) \
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{ #name, test_##name, (flags), NULL, NULL }
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struct testcase_t circuitstats_tests[] = {
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TEST_CIRCUITSTATS(circuitstats_hoplen, TT_FORK),
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END_OF_TESTCASES
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};
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