andreacavalli/tdlib-fork
Archived
1
0
Fork 0
Code Pull Requests Releases Activity

Improve check_tls.

Browse Source 
GitOrigin-RevId: ef95d9d401fc8fd7071dbe58e69610c4d6e849db
This commit is contained in:
levlam 2019-07-01 19:43:50 +03:00
parent 3a2bb833ec
commit e9a03ba5d1
1 changed files with 69 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
benchmark/check_tls.cpp
View File

@ -5,6 +5,7 @@
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/utils/common.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/port/detail/Iocp.h"
@ -13,10 +14,18 @@
#include "td/utils/port/SocketFd.h"
#include "td/utils/port/thread.h"
#include "td/utils/Random.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
#include "td/utils/Time.h"
td::Status test_tls(const td::string &url) {
#include <map>
struct TlsInfo {
td::vector<td::int32> extension_list;
size_t encrypted_application_data_length = 0;
};
td::Result<TlsInfo> test_tls(const td::string &url) {
td::IPAddress address;
TRY_STATUS(address.init_host_port(url, 443));
TRY_RESULT(socket, td::SocketFd::open(address));
@ -90,11 +99,11 @@ td::Status test_tls(const td::string &url) {
socket.write(request);
TlsInfo info;
auto end_time = td::Time::now() + 3;
td::string result;
size_t pos = 0;
size_t server_hello_length = 0;
size_t encrypted_application_data_length = 0;
while (td::Time::now() < end_time) {
char buf[1];
TRY_RESULT(res, socket.read(td::MutableSlice{buf, sizeof(buf)}));
@ -131,7 +140,6 @@ td::Status test_tls(const td::string &url) {
if (server_hello_length > 0) {
if (pos == 5) {
CHECK_LENGTH(server_hello_length);
pos += server_hello_length;
EXPECT_STR(5, "\x02\x00", "Non-TLS response 2");
EXPECT_STR(9, "\x03\x03", "Non-TLS response 3");
@ -151,7 +159,22 @@ td::Status test_tls(const td::string &url) {
}
EXPECT_STR(44, request.substr(44, 32), "TLS <= 1.2: expected mirrored session_id");
EXPECT_STR(76, "\x13\x01\x00", "TLS <= 1.2: expected x25519 as a chosen cipher");
EXPECT_STR(79, "\x00\x2e", "Support only TLS 1.3 extension list of size 47");
pos += 74;
size_t extensions_length = read_length();
if (extensions_length + 76 != server_hello_length) {
return td::Status::Error("Receive wrong extensions length");
}
while (pos < 5 + server_hello_length - 4) {
info.extension_list.push_back(read_length());
size_t extension_length = read_length();
if (pos + extension_length > 5 + server_hello_length) {
return td::Status::Error("Receive wrong extension length");
}
pos += extension_length;
}
if (pos != 5 + server_hello_length) {
return td::Status::Error("Receive wrong extensions list");
}
}
if (pos == 5 + server_hello_length) {
CHECK_LENGTH(9);
@ -161,15 +184,15 @@ td::Status test_tls(const td::string &url) {
}
if (pos == 14 + server_hello_length) {
CHECK_LENGTH(2);
encrypted_application_data_length = read_length();
if (encrypted_application_data_length == 0) {
info.encrypted_application_data_length = read_length();
if (info.encrypted_application_data_length == 0) {
return td::Status::Error("Receive empty encrypted application data");
}
}
if (encrypted_application_data_length > 0) {
CHECK_LENGTH(encrypted_application_data_length);
pos += encrypted_application_data_length;
return td::Status::OK();
if (info.encrypted_application_data_length > 0) {
CHECK_LENGTH(info.encrypted_application_data_length);
pos += info.encrypted_application_data_length;
return info;
}
}
}
@ -197,7 +220,42 @@ int main(int argc, char *argv[]) {
urls.emplace_back(argv[i]);
}
for (auto &url : urls) {
LOG(ERROR) << url << ": " << test_tls(url);
const int MAX_TRIES = 100;
std::map<size_t, int> length_count;
td::vector<td::int32> extension_list;
for (int i = 0; i < MAX_TRIES; i++) {
auto r_tls_info = test_tls(url);
if (r_tls_info.is_error()) {
LOG(ERROR) << url << ": " << r_tls_info.error();
break;
} else {
auto tls_info = r_tls_info.move_as_ok();
length_count[tls_info.encrypted_application_data_length]++;
if (i == 0) {
extension_list = tls_info.extension_list;
} else {
if (extension_list != tls_info.extension_list) {
LOG(ERROR) << url << ": TLS 1.3.0 extension list has changed from " << extension_list << " to "
<< tls_info.extension_list;
break;
}
}
}
if (i == MAX_TRIES - 1) {
if (extension_list != td::vector<td::int32>{51, 43} && extension_list != td::vector<td::int32>{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) << "%|";
}
LOG(ERROR) << url << ": TLS 1.3.0 with extensions " << extension_list
<< " and encrypted application data length distribution " << length_distribution;
}
}
}
}
#if TD_PORT_WINDOWS