commit b2f025cb568673acd00b7158957d24193ed739d9 Merge: 2709828494 917f8beb54 Author: Mike Perry mikeperry-git@torproject.org Date: Thu Feb 18 18:17:18 2021 +0000
Merge branch 'bug40168+34088-035-v3' into bug40168+34088-035-v3-master
changes/bug34088 | 4 ++ changes/bug40168 | 16 +++++ src/core/or/circuitstats.c | 168 ++++++++++++++------------------------------- src/core/or/circuitstats.h | 11 +-- src/test/test.c | 112 +++++++++++++++++++++++++++--- 5 files changed, 182 insertions(+), 129 deletions(-)
diff --cc src/core/or/circuitstats.c index 51bd9e1208,e23b11ccf9..b7f5216d72 --- a/src/core/or/circuitstats.c +++ b/src/core/or/circuitstats.c @@@ -1193,9 -1143,8 +1141,8 @@@ circuit_build_times_update_alpha(circui build_time_t *x=cbt->circuit_build_times; double a = 0; int n=0,i=0,abandoned_count=0; - build_time_t max_time=0;
- /* http://en.wikipedia.org/wiki/Pareto_distribution#Parameter_estimation */ + /* https://en.wikipedia.org/wiki/Pareto_distribution#Parameter_estimation */ /* We sort of cheat here and make our samples slightly more pareto-like * and less frechet-like. */ cbt->Xm = circuit_build_times_get_xm(cbt); diff --cc src/test/test.c index ffea158141,f4a37b0ac4..0d6c0a0d4a --- a/src/test/test.c +++ b/src/test/test.c @@@ -56,8 -54,10 +56,9 @@@ #include "core/crypto/onion_fast.h" #include "core/crypto/onion_tap.h" #include "core/or/policies.h" -#include "feature/stats/rephist.h" #include "app/config/statefile.h" #include "lib/crypt_ops/crypto_curve25519.h" + #include "feature/nodelist/networkstatus.h"
#include "core/or/extend_info_st.h" #include "core/or/or_circuit_st.h" @@@ -355,6 -355,118 +356,106 @@@ test_onion_queues(void *arg tor_free(onionskin); }
-static crypto_cipher_t *crypto_rand_aes_cipher = NULL; - -// Mock replacement for crypto_rand: Generates bytes from a provided AES_CTR -// cipher in <b>crypto_rand_aes_cipher</b>. -static void -crypto_rand_deterministic_aes(char *out, size_t n) -{ - tor_assert(crypto_rand_aes_cipher); - memset(out, 0, n); - crypto_cipher_crypt_inplace(crypto_rand_aes_cipher, out, n); -} - + static int32_t cbtnummodes = 10; + + static int32_t + mock_xm_networkstatus_get_param( + const networkstatus_t *ns, const char *param_name, int32_t default_val, + int32_t min_val, int32_t max_val) + { + (void)ns; + (void)default_val; + (void)min_val; + (void)max_val; + // only support cbtnummodes right now + tor_assert(strcmp(param_name, "cbtnummodes")==0); + return cbtnummodes; + } + + static void + test_circuit_timeout_xm_alpha(void *arg) + { + circuit_build_times_t cbt; + build_time_t Xm; + int alpha_ret; + circuit_build_times_init(&cbt); + (void)arg; + + /* Plan: + * 1. Create array of build times with 10 modes. + * 2. Make sure Xm calc is sane for 1,3,5,10,15,20 modes. + * 3. Make sure alpha calc is sane for 1,3,5,10,15,20 modes. + */ + + /* 110 build times, 9 modes, 8 mode ties, 10 abandoned */ + build_time_t circuit_build_times[] = { + 100, 20, 1000, 500, 200, 5000, 30, 600, 200, 300, CBT_BUILD_ABANDONED, + 101, 21, 1001, 501, 201, 5001, 31, 601, 201, 301, CBT_BUILD_ABANDONED, + 102, 22, 1002, 502, 202, 5002, 32, 602, 202, 302, CBT_BUILD_ABANDONED, + 103, 23, 1003, 503, 203, 5003, 33, 603, 203, 303, CBT_BUILD_ABANDONED, + 104, 24, 1004, 504, 204, 5004, 34, 604, 204, 304, CBT_BUILD_ABANDONED, + 105, 25, 1005, 505, 205, 5005, 35, 605, 205, 305, CBT_BUILD_ABANDONED, + 106, 26, 1006, 506, 206, 5006, 36, 606, 206, 306, CBT_BUILD_ABANDONED, + 107, 27, 1007, 507, 207, 5007, 37, 607, 207, 307, CBT_BUILD_ABANDONED, + 108, 28, 1008, 508, 208, 5008, 38, 608, 208, 308, CBT_BUILD_ABANDONED, + 109, 29, 1009, 509, 209, 5009, 39, 609, 209, 309, CBT_BUILD_ABANDONED + }; + + memcpy(cbt.circuit_build_times, circuit_build_times, + sizeof(circuit_build_times)); + cbt.total_build_times = 110; + + MOCK(networkstatus_get_param, mock_xm_networkstatus_get_param); + + #define CBT_ALPHA_PRECISION 0.00001 + cbtnummodes = 1; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 205); + tt_assert(fabs(cbt.alpha - 1.394401) < CBT_ALPHA_PRECISION); + + cbtnummodes = 3; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 117); + tt_assert(fabs(cbt.alpha - 0.902313) < CBT_ALPHA_PRECISION); + + cbtnummodes = 5; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 146); + tt_assert(fabs(cbt.alpha - 1.049032) < CBT_ALPHA_PRECISION); + + cbtnummodes = 10; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 800); + tt_assert(fabs(cbt.alpha - 4.851754) < CBT_ALPHA_PRECISION); + + cbtnummodes = 15; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 800); + tt_assert(fabs(cbt.alpha - 4.851754) < CBT_ALPHA_PRECISION); + + cbtnummodes = 20; + Xm = circuit_build_times_get_xm(&cbt); + alpha_ret = circuit_build_times_update_alpha(&cbt); + tt_int_op(alpha_ret, OP_EQ, 1); + tt_int_op(Xm, OP_EQ, 800); + tt_assert(fabs(cbt.alpha - 4.851754) < CBT_ALPHA_PRECISION); + + done: + #undef CBT_ALPHA_PRECISION + UNMOCK(networkstatus_get_param); + circuit_build_times_free_timeouts(&cbt); + } + static void test_circuit_timeout(void *arg) { @@@ -659,7 -916,9 +752,8 @@@ static struct testcase_t test_array[] { "ntor_handshake", test_ntor_handshake, 0, NULL, NULL }, { "fast_handshake", test_fast_handshake, 0, NULL, NULL }, FORK(circuit_timeout), + FORK(circuit_timeout_xm_alpha), FORK(rend_fns), - FORK(stats),
END_OF_TESTCASES };