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//===-- RNBSocketTest.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 "gtest/gtest.h"
#include <arpa/inet.h>
#include <sys/sysctl.h>
#include <unistd.h>
#include "RNBDefs.h"
#include "RNBSocket.h"
#include "lldb/Host/Socket.h"
#include "lldb/Host/StringConvert.h"
#include "lldb/Host/common/TCPSocket.h"
#include "llvm/Testing/Support/Error.h"
using namespace lldb_private;
std::string hello = "Hello, world!";
std::string goodbye = "Goodbye!";
static void ServerCallbackv4(const void *baton, in_port_t port) {
auto child_pid = fork();
if (child_pid == 0) {
char addr_buffer[256];
sprintf(addr_buffer, "%s:%d", baton, port);
llvm::Expected<std::unique_ptr<Socket>> socket_or_err =
Socket::TcpConnect(addr_buffer, false);
ASSERT_THAT_EXPECTED(socket_or_err, llvm::Succeeded());
Socket *client_socket = socket_or_err->get();
char buffer[32];
size_t read_size = 32;
Status err = client_socket->Read((void *)&buffer[0], read_size);
if (err.Fail())
abort();
std::string Recv(&buffer[0], read_size);
if (Recv != hello)
abort();
size_t write_size = goodbye.length();
err = client_socket->Write(goodbye.c_str(), write_size);
if (err.Fail())
abort();
if (write_size != goodbye.length())
abort();
delete client_socket;
exit(0);
}
}
void TestSocketListen(const char *addr) {
// Skip IPv6 tests if there isn't a valid interafce
auto addresses = lldb_private::SocketAddress::GetAddressInfo(
addr, NULL, AF_UNSPEC, SOCK_STREAM, IPPROTO_TCP);
if (addresses.size() == 0)
return;
char addr_wrap[256];
if (addresses.front().GetFamily() == AF_INET6)
sprintf(addr_wrap, "[%s]", addr);
else
sprintf(addr_wrap, "%s", addr);
RNBSocket server_socket;
auto result =
server_socket.Listen(addr, 0, ServerCallbackv4, (const void *)addr_wrap);
ASSERT_TRUE(result == rnb_success);
result = server_socket.Write(hello.c_str(), hello.length());
ASSERT_TRUE(result == rnb_success);
std::string bye;
result = server_socket.Read(bye);
ASSERT_TRUE(result == rnb_success);
ASSERT_EQ(bye, goodbye);
int exit_status;
wait(&exit_status);
ASSERT_EQ(exit_status, 0);
}
TEST(RNBSocket, LoopBackListenIPv4) { TestSocketListen("127.0.0.1"); }
TEST(RNBSocket, LoopBackListenIPv6) { TestSocketListen("::1"); }
TEST(RNBSocket, AnyListen) { TestSocketListen("*"); }
void TestSocketConnect(const char *addr) {
// Skip IPv6 tests if there isn't a valid interafce
auto addresses = lldb_private::SocketAddress::GetAddressInfo(
addr, NULL, AF_UNSPEC, SOCK_STREAM, IPPROTO_TCP);
if (addresses.size() == 0)
return;
char addr_wrap[256];
if (addresses.front().GetFamily() == AF_INET6)
sprintf(addr_wrap, "[%s]:0", addr);
else
sprintf(addr_wrap, "%s:0", addr);
Socket *server_socket;
Predicate<uint16_t> port_predicate;
port_predicate.SetValue(0, eBroadcastNever);
llvm::Expected<std::unique_ptr<Socket>> socket_or_err =
Socket::TcpListen(addr_wrap, false, &port_predicate);
ASSERT_THAT_EXPECTED(socket_or_err, llvm::Succeeded());
server_socket = socket_or_err->get();
auto port = ((TCPSocket *)server_socket)->GetLocalPortNumber();
auto child_pid = fork();
if (child_pid != 0) {
RNBSocket client_socket;
auto result = client_socket.Connect(addr, port);
ASSERT_TRUE(result == rnb_success);
result = client_socket.Write(hello.c_str(), hello.length());
ASSERT_TRUE(result == rnb_success);
std::string bye;
result = client_socket.Read(bye);
ASSERT_TRUE(result == rnb_success);
ASSERT_EQ(bye, goodbye);
} else {
Socket *connected_socket;
Status err = server_socket->Accept(connected_socket);
if (err.Fail()) {
llvm::errs() << err.AsCString();
abort();
}
char buffer[32];
size_t read_size = 32;
err = connected_socket->Read((void *)&buffer[0], read_size);
if (err.Fail()) {
llvm::errs() << err.AsCString();
abort();
}
std::string Recv(&buffer[0], read_size);
if (Recv != hello) {
llvm::errs() << err.AsCString();
abort();
}
size_t write_size = goodbye.length();
err = connected_socket->Write(goodbye.c_str(), write_size);
if (err.Fail()) {
llvm::errs() << err.AsCString();
abort();
}
if (write_size != goodbye.length()) {
llvm::errs() << err.AsCString();
abort();
}
exit(0);
}
int exit_status;
wait(&exit_status);
ASSERT_EQ(exit_status, 0);
}
TEST(RNBSocket, LoopBackConnectIPv4) { TestSocketConnect("127.0.0.1"); }
TEST(RNBSocket, LoopBackConnectIPv6) { TestSocketConnect("::1"); }
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