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Improve check_tls.

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GitOrigin-RevId: 6cce74e45b3cf0da84fb6e8ac8c3686d6185f4af
This commit is contained in:
levlam 2019-07-05 23:46:17 +03:00
parent 02c31f486f
commit a0f6616ad3
1 changed files with 44 additions and 23 deletions
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67
benchmark/check_tls.cpp
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@ -21,8 +21,8 @@
#include <map>
struct TlsInfo {
td::vector<td::int32> extension_list;
size_t encrypted_application_data_length = 0;
td::vector<size_t> extension_list;
td::vector<size_t> encrypted_application_data_length;
};
td::Result<TlsInfo> test_tls(const td::string &url) {
@ -104,11 +104,12 @@ td::Result<TlsInfo> test_tls(const td::string &url) {
td::string result;
size_t pos = 0;
size_t server_hello_length = 0;
size_t encrypted_application_data_length_sum = 0;
while (td::Time::now() < end_time) {
char buf[1];
char buf[20000];
TRY_RESULT(res, socket.read(td::MutableSlice{buf, sizeof(buf)}));
if (res > 0) {
auto read_length = [&] {
auto read_length = [&]() -> size_t {
CHECK(result.size() >= 2 + pos);
pos += 2;
return static_cast<unsigned char>(result[pos - 2]) * 256 + static_cast<unsigned char>(result[pos - 1]);
@ -177,22 +178,31 @@ td::Result<TlsInfo> test_tls(const td::string &url) {
}
}
if (pos == 5 + server_hello_length) {
CHECK_LENGTH(9);
CHECK_LENGTH(6);
EXPECT_STR(pos, "\x14\x03\x03\x00\x01\x01", "Expected dummy ChangeCipherSpec");
EXPECT_STR(pos + 6, "\x17\x03\x03", "Expected encrypted application data");
pos += 9;
pos += 6;
}
if (pos == 14 + server_hello_length) {
if (pos == 11 + server_hello_length + encrypted_application_data_length_sum) {
if (pos == result.size()) {
return info;
}
CHECK_LENGTH(3);
EXPECT_STR(pos, "\x17\x03\x03", "Expected encrypted application data");
pos += 3;
}
if (pos == 14 + server_hello_length + encrypted_application_data_length_sum) {
CHECK_LENGTH(2);
info.encrypted_application_data_length = read_length();
if (info.encrypted_application_data_length == 0) {
size_t encrypted_application_data_length = read_length();
info.encrypted_application_data_length.push_back(encrypted_application_data_length);
if (encrypted_application_data_length == 0) {
return td::Status::Error("Receive empty encrypted application data");
}
}
if (info.encrypted_application_data_length > 0) {
CHECK_LENGTH(info.encrypted_application_data_length);
pos += info.encrypted_application_data_length;
return info;
if (pos == 16 + server_hello_length + encrypted_application_data_length_sum) {
CHECK_LENGTH(info.encrypted_application_data_length.back());
pos += info.encrypted_application_data_length.back();
encrypted_application_data_length_sum += info.encrypted_application_data_length.back() + 5;
}
}
}
@ -221,8 +231,8 @@ int main(int argc, char *argv[]) {
}
for (auto &url : urls) {
const int MAX_TRIES = 100;
std::map<size_t, int> length_count;
td::vector<td::int32> extension_list;
td::vector<std::map<size_t, int>> length_count;
td::vector<size_t> extension_list;
for (int i = 0; i < MAX_TRIES; i++) {
auto r_tls_info = test_tls(url);
if (r_tls_info.is_error()) {
@ -230,7 +240,12 @@ int main(int argc, char *argv[]) {
break;
} else {
auto tls_info = r_tls_info.move_as_ok();
length_count[tls_info.encrypted_application_data_length]++;
if (length_count.size() < tls_info.encrypted_application_data_length.size()) {
length_count.resize(tls_info.encrypted_application_data_length.size());
}
for (size_t t = 0; t < tls_info.encrypted_application_data_length.size(); t++) {
length_count[t][tls_info.encrypted_application_data_length[t]]++;
}
if (i == 0) {
extension_list = tls_info.extension_list;
} else {
@ -243,16 +258,22 @@ int main(int argc, char *argv[]) {
}
if (i == MAX_TRIES - 1) {
if (extension_list != td::vector<td::int32>{51, 43} && extension_list != td::vector<td::int32>{43, 51}) {
if (extension_list != td::vector<size_t>{51, 43} && extension_list != td::vector<size_t>{43, 51}) {
LOG(ERROR) << url << ": TLS 1.3.0 unsupported extension list " << extension_list;
} else {
td::string length_distribution = "|";
for (auto it : length_count) {
length_distribution += PSTRING()
<< it.first << " : " << static_cast<int>(it.second * 100.0 / MAX_TRIES) << "%|";
for (size_t t = 0; t < length_count.size(); t++) {
for (auto it : length_count[t]) {
length_distribution += PSTRING()
<< it.first << " : " << static_cast<int>(it.second * 100.0 / MAX_TRIES) << "%|";
}
if (t + 1 != length_count.size()) {
length_distribution += " + |";
}
}
LOG(ERROR) << url << ": TLS 1.3.0 with extensions " << extension_list
<< " and encrypted application data length distribution " << length_distribution;
LOG(ERROR) << url << ": TLS 1.3.0 with extensions " << extension_list << " and "
<< (length_count.size() != 1 ? "unsupported " : "")
<< "encrypted application data length distribution " << length_distribution;
}
}
}