forked from OSchip/llvm-project
129 lines
4.5 KiB
C++
129 lines
4.5 KiB
C++
//===-- SocketTestUtilities.cpp -------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "SocketTestUtilities.h"
|
|
#include "lldb/Host/Config.h"
|
|
#include "lldb/Utility/StreamString.h"
|
|
|
|
#ifdef _WIN32
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#else
|
|
#include <arpa/inet.h>
|
|
#endif
|
|
|
|
using namespace lldb_private;
|
|
|
|
static void AcceptThread(Socket *listen_socket, bool child_processes_inherit,
|
|
Socket **accept_socket, Status *error) {
|
|
*error = listen_socket->Accept(*accept_socket);
|
|
}
|
|
|
|
template <typename SocketType>
|
|
void lldb_private::CreateConnectedSockets(
|
|
llvm::StringRef listen_remote_address,
|
|
const std::function<std::string(const SocketType &)> &get_connect_addr,
|
|
std::unique_ptr<SocketType> *a_up, std::unique_ptr<SocketType> *b_up) {
|
|
bool child_processes_inherit = false;
|
|
Status error;
|
|
std::unique_ptr<SocketType> listen_socket_up(
|
|
new SocketType(true, child_processes_inherit));
|
|
ASSERT_THAT_ERROR(error.ToError(), llvm::Succeeded());
|
|
error = listen_socket_up->Listen(listen_remote_address, 5);
|
|
ASSERT_THAT_ERROR(error.ToError(), llvm::Succeeded());
|
|
ASSERT_TRUE(listen_socket_up->IsValid());
|
|
|
|
Status accept_error;
|
|
Socket *accept_socket;
|
|
std::thread accept_thread(AcceptThread, listen_socket_up.get(),
|
|
child_processes_inherit, &accept_socket,
|
|
&accept_error);
|
|
|
|
std::string connect_remote_address = get_connect_addr(*listen_socket_up);
|
|
std::unique_ptr<SocketType> connect_socket_up(
|
|
new SocketType(true, child_processes_inherit));
|
|
ASSERT_THAT_ERROR(error.ToError(), llvm::Succeeded());
|
|
error = connect_socket_up->Connect(connect_remote_address);
|
|
ASSERT_THAT_ERROR(error.ToError(), llvm::Succeeded());
|
|
ASSERT_TRUE(connect_socket_up->IsValid());
|
|
|
|
a_up->swap(connect_socket_up);
|
|
ASSERT_TRUE((*a_up)->IsValid());
|
|
|
|
accept_thread.join();
|
|
b_up->reset(static_cast<SocketType *>(accept_socket));
|
|
ASSERT_THAT_ERROR(accept_error.ToError(), llvm::Succeeded());
|
|
ASSERT_NE(nullptr, b_up->get());
|
|
ASSERT_TRUE((*b_up)->IsValid());
|
|
|
|
listen_socket_up.reset();
|
|
}
|
|
|
|
bool lldb_private::CreateTCPConnectedSockets(
|
|
std::string listen_remote_ip, std::unique_ptr<TCPSocket> *socket_a_up,
|
|
std::unique_ptr<TCPSocket> *socket_b_up) {
|
|
StreamString strm;
|
|
strm.Printf("[%s]:0", listen_remote_ip.c_str());
|
|
CreateConnectedSockets<TCPSocket>(
|
|
strm.GetString(),
|
|
[=](const TCPSocket &s) {
|
|
char connect_remote_address[64];
|
|
snprintf(connect_remote_address, sizeof(connect_remote_address),
|
|
"[%s]:%u", listen_remote_ip.c_str(), s.GetLocalPortNumber());
|
|
return std::string(connect_remote_address);
|
|
},
|
|
socket_a_up, socket_b_up);
|
|
return true;
|
|
}
|
|
|
|
#if LLDB_ENABLE_POSIX
|
|
void lldb_private::CreateDomainConnectedSockets(
|
|
llvm::StringRef path, std::unique_ptr<DomainSocket> *socket_a_up,
|
|
std::unique_ptr<DomainSocket> *socket_b_up) {
|
|
return CreateConnectedSockets<DomainSocket>(
|
|
path, [=](const DomainSocket &) { return path.str(); }, socket_a_up,
|
|
socket_b_up);
|
|
}
|
|
#endif
|
|
|
|
static bool CheckIPSupport(llvm::StringRef Proto, llvm::StringRef Addr) {
|
|
llvm::Expected<std::unique_ptr<TCPSocket>> Sock = Socket::TcpListen(
|
|
Addr, /*child_processes_inherit=*/false);
|
|
if (Sock)
|
|
return true;
|
|
llvm::Error Err = Sock.takeError();
|
|
GTEST_LOG_(WARNING) << llvm::formatv(
|
|
"Creating a canary {0} TCP socket failed: {1}.",
|
|
Proto, Err)
|
|
.str();
|
|
bool HasProtocolError = false;
|
|
handleAllErrors(std::move(Err), [&](std::unique_ptr<llvm::ECError> ECErr) {
|
|
std::error_code ec = ECErr->convertToErrorCode();
|
|
if (ec == std::make_error_code(std::errc::address_family_not_supported) ||
|
|
ec == std::make_error_code(std::errc::address_not_available))
|
|
HasProtocolError = true;
|
|
});
|
|
if (HasProtocolError) {
|
|
GTEST_LOG_(WARNING)
|
|
<< llvm::formatv(
|
|
"Assuming the host does not support {0}. Skipping test.", Proto)
|
|
.str();
|
|
return false;
|
|
}
|
|
GTEST_LOG_(WARNING) << "Continuing anyway. The test will probably fail.";
|
|
return true;
|
|
}
|
|
|
|
bool lldb_private::HostSupportsIPv4() {
|
|
return CheckIPSupport("IPv4", "127.0.0.1:0");
|
|
}
|
|
|
|
bool lldb_private::HostSupportsIPv6() {
|
|
return CheckIPSupport("IPv6", "[::1]:0");
|
|
}
|