yuzu/src/core/network/network.cpp
Lioncash 39c8d18feb core/CMakeLists: Make some warnings errors
Makes our error coverage a little more consistent across the board by
applying it to Linux side of things as well. This also makes it more
consistent with the warning settings in other libraries in the project.

This also updates httplib to 0.7.9, as there are several warning
cleanups made that allow us to enable several warnings as errors.
2020-10-13 13:16:49 -04:00

655 lines
17 KiB
C++

// Copyright 2020 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cstring>
#include <limits>
#include <utility>
#include <vector>
#ifdef _WIN32
#define _WINSOCK_DEPRECATED_NO_WARNINGS // gethostname
#include <winsock2.h>
#elif __unix__
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
#include <poll.h>
#include <sys/socket.h>
#include <unistd.h>
#else
#error "Unimplemented platform"
#endif
#include "common/assert.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/network/network.h"
#include "core/network/sockets.h"
namespace Network {
namespace {
#ifdef _WIN32
using socklen_t = int;
void Initialize() {
WSADATA wsa_data;
(void)WSAStartup(MAKEWORD(2, 2), &wsa_data);
}
void Finalize() {
WSACleanup();
}
constexpr IPv4Address TranslateIPv4(in_addr addr) {
auto& bytes = addr.S_un.S_un_b;
return IPv4Address{bytes.s_b1, bytes.s_b2, bytes.s_b3, bytes.s_b4};
}
sockaddr TranslateFromSockAddrIn(SockAddrIn input) {
sockaddr_in result;
#ifdef __unix__
result.sin_len = sizeof(result);
#endif
switch (static_cast<Domain>(input.family)) {
case Domain::INET:
result.sin_family = AF_INET;
break;
default:
UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", static_cast<int>(input.family));
result.sin_family = AF_INET;
break;
}
result.sin_port = htons(input.portno);
auto& ip = result.sin_addr.S_un.S_un_b;
ip.s_b1 = input.ip[0];
ip.s_b2 = input.ip[1];
ip.s_b3 = input.ip[2];
ip.s_b4 = input.ip[3];
sockaddr addr;
std::memcpy(&addr, &result, sizeof(addr));
return addr;
}
LINGER MakeLinger(bool enable, u32 linger_value) {
ASSERT(linger_value <= std::numeric_limits<u_short>::max());
LINGER value;
value.l_onoff = enable ? 1 : 0;
value.l_linger = static_cast<u_short>(linger_value);
return value;
}
int LastError() {
return WSAGetLastError();
}
bool EnableNonBlock(SOCKET fd, bool enable) {
u_long value = enable ? 1 : 0;
return ioctlsocket(fd, FIONBIO, &value) != SOCKET_ERROR;
}
#elif __unix__ // ^ _WIN32 v __unix__
using SOCKET = int;
using WSAPOLLFD = pollfd;
using ULONG = u64;
constexpr SOCKET INVALID_SOCKET = -1;
constexpr SOCKET SOCKET_ERROR = -1;
constexpr int WSAEWOULDBLOCK = EAGAIN;
constexpr int WSAENOTCONN = ENOTCONN;
constexpr int SD_RECEIVE = SHUT_RD;
constexpr int SD_SEND = SHUT_WR;
constexpr int SD_BOTH = SHUT_RDWR;
void Initialize() {}
void Finalize() {}
constexpr IPv4Address TranslateIPv4(in_addr addr) {
const u32 bytes = addr.s_addr;
return IPv4Address{static_cast<u8>(bytes), static_cast<u8>(bytes >> 8),
static_cast<u8>(bytes >> 16), static_cast<u8>(bytes >> 24)};
}
sockaddr TranslateFromSockAddrIn(SockAddrIn input) {
sockaddr_in result;
switch (static_cast<Domain>(input.family)) {
case Domain::INET:
result.sin_family = AF_INET;
break;
default:
UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", static_cast<int>(input.family));
result.sin_family = AF_INET;
break;
}
result.sin_port = htons(input.portno);
result.sin_addr.s_addr = input.ip[0] | input.ip[1] << 8 | input.ip[2] << 16 | input.ip[3] << 24;
sockaddr addr;
std::memcpy(&addr, &result, sizeof(addr));
return addr;
}
int WSAPoll(WSAPOLLFD* fds, ULONG nfds, int timeout) {
return poll(fds, nfds, timeout);
}
int closesocket(SOCKET fd) {
return close(fd);
}
linger MakeLinger(bool enable, u32 linger_value) {
linger value;
value.l_onoff = enable ? 1 : 0;
value.l_linger = linger_value;
return value;
}
int LastError() {
return errno;
}
bool EnableNonBlock(int fd, bool enable) {
int flags = fcntl(fd, F_GETFD);
if (flags == -1) {
return false;
}
if (enable) {
flags |= O_NONBLOCK;
} else {
flags &= ~O_NONBLOCK;
}
return fcntl(fd, F_SETFD, flags) == 0;
}
#endif
int TranslateDomain(Domain domain) {
switch (domain) {
case Domain::INET:
return AF_INET;
default:
UNIMPLEMENTED_MSG("Unimplemented domain={}", static_cast<int>(domain));
return 0;
}
}
int TranslateType(Type type) {
switch (type) {
case Type::STREAM:
return SOCK_STREAM;
case Type::DGRAM:
return SOCK_DGRAM;
default:
UNIMPLEMENTED_MSG("Unimplemented type={}", static_cast<int>(type));
return 0;
}
}
int TranslateProtocol(Protocol protocol) {
switch (protocol) {
case Protocol::TCP:
return IPPROTO_TCP;
case Protocol::UDP:
return IPPROTO_UDP;
default:
UNIMPLEMENTED_MSG("Unimplemented protocol={}", static_cast<int>(protocol));
return 0;
}
}
SockAddrIn TranslateToSockAddrIn(sockaddr input_) {
sockaddr_in input;
std::memcpy(&input, &input_, sizeof(input));
SockAddrIn result;
switch (input.sin_family) {
case AF_INET:
result.family = Domain::INET;
break;
default:
UNIMPLEMENTED_MSG("Unhandled sockaddr family={}", input.sin_family);
result.family = Domain::INET;
break;
}
result.portno = ntohs(input.sin_port);
result.ip = TranslateIPv4(input.sin_addr);
return result;
}
u16 TranslatePollEvents(u32 events) {
u32 result = 0;
if ((events & POLL_IN) != 0) {
events &= ~POLL_IN;
result |= POLLIN;
}
if ((events & POLL_PRI) != 0) {
events &= ~POLL_PRI;
#ifdef _WIN32
LOG_WARNING(Service, "Winsock doesn't support POLLPRI");
#else
result |= POLL_PRI;
#endif
}
if ((events & POLL_OUT) != 0) {
events &= ~POLL_OUT;
result |= POLLOUT;
}
UNIMPLEMENTED_IF_MSG(events != 0, "Unhandled guest events=0x{:x}", events);
return static_cast<u16>(result);
}
u16 TranslatePollRevents(u32 revents) {
u32 result = 0;
const auto translate = [&result, &revents](u32 host, u32 guest) {
if ((revents & host) != 0) {
revents &= ~host;
result |= guest;
}
};
translate(POLLIN, POLL_IN);
translate(POLLPRI, POLL_PRI);
translate(POLLOUT, POLL_OUT);
translate(POLLERR, POLL_ERR);
translate(POLLHUP, POLL_HUP);
UNIMPLEMENTED_IF_MSG(revents != 0, "Unhandled host revents=0x{:x}", revents);
return static_cast<u16>(result);
}
template <typename T>
Errno SetSockOpt(SOCKET fd, int option, T value) {
const int result =
setsockopt(fd, SOL_SOCKET, option, reinterpret_cast<const char*>(&value), sizeof(value));
if (result != SOCKET_ERROR) {
return Errno::SUCCESS;
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
} // Anonymous namespace
NetworkInstance::NetworkInstance() {
Initialize();
}
NetworkInstance::~NetworkInstance() {
Finalize();
}
std::pair<IPv4Address, Errno> GetHostIPv4Address() {
std::array<char, 256> name{};
if (gethostname(name.data(), static_cast<int>(name.size()) - 1) == SOCKET_ERROR) {
UNIMPLEMENTED_MSG("Unhandled gethostname error");
return {IPv4Address{}, Errno::SUCCESS};
}
hostent* const ent = gethostbyname(name.data());
if (!ent) {
UNIMPLEMENTED_MSG("Unhandled gethostbyname error");
return {IPv4Address{}, Errno::SUCCESS};
}
if (ent->h_addr_list == nullptr) {
UNIMPLEMENTED_MSG("No addr provided in hostent->h_addr_list");
return {IPv4Address{}, Errno::SUCCESS};
}
if (ent->h_length != sizeof(in_addr)) {
UNIMPLEMENTED_MSG("Unexpected size={} in hostent->h_length", ent->h_length);
}
in_addr addr;
std::memcpy(&addr, ent->h_addr_list[0], sizeof(addr));
return {TranslateIPv4(addr), Errno::SUCCESS};
}
std::pair<s32, Errno> Poll(std::vector<PollFD>& pollfds, s32 timeout) {
const size_t num = pollfds.size();
std::vector<WSAPOLLFD> host_pollfds(pollfds.size());
std::transform(pollfds.begin(), pollfds.end(), host_pollfds.begin(), [](PollFD fd) {
WSAPOLLFD result;
result.fd = fd.socket->fd;
result.events = TranslatePollEvents(fd.events);
result.revents = 0;
return result;
});
const int result = WSAPoll(host_pollfds.data(), static_cast<ULONG>(num), timeout);
if (result == 0) {
ASSERT(std::all_of(host_pollfds.begin(), host_pollfds.end(),
[](WSAPOLLFD fd) { return fd.revents == 0; }));
return {0, Errno::SUCCESS};
}
for (size_t i = 0; i < num; ++i) {
pollfds[i].revents = TranslatePollRevents(static_cast<u32>(host_pollfds[i].revents));
}
if (result > 0) {
return {result, Errno::SUCCESS};
}
ASSERT(result == SOCKET_ERROR);
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {-1, Errno::SUCCESS};
}
Socket::~Socket() {
if (fd == INVALID_SOCKET) {
return;
}
(void)closesocket(fd);
fd = INVALID_SOCKET;
}
Socket::Socket(Socket&& rhs) noexcept : fd{std::exchange(rhs.fd, INVALID_SOCKET)} {}
Errno Socket::Initialize(Domain domain, Type type, Protocol protocol) {
fd = socket(TranslateDomain(domain), TranslateType(type), TranslateProtocol(protocol));
if (fd != INVALID_SOCKET) {
return Errno::SUCCESS;
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
std::pair<Socket::AcceptResult, Errno> Socket::Accept() {
sockaddr addr;
socklen_t addrlen = sizeof(addr);
const SOCKET new_socket = accept(fd, &addr, &addrlen);
if (new_socket == INVALID_SOCKET) {
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {AcceptResult{}, Errno::SUCCESS};
}
AcceptResult result;
result.socket = std::make_unique<Socket>();
result.socket->fd = new_socket;
ASSERT(addrlen == sizeof(sockaddr_in));
result.sockaddr_in = TranslateToSockAddrIn(addr);
return {std::move(result), Errno::SUCCESS};
}
Errno Socket::Connect(SockAddrIn addr_in) {
const sockaddr host_addr_in = TranslateFromSockAddrIn(addr_in);
if (connect(fd, &host_addr_in, sizeof(host_addr_in)) != SOCKET_ERROR) {
return Errno::SUCCESS;
}
switch (const int ec = LastError()) {
case WSAEWOULDBLOCK:
LOG_DEBUG(Service, "EAGAIN generated");
return Errno::AGAIN;
default:
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
}
std::pair<SockAddrIn, Errno> Socket::GetPeerName() {
sockaddr addr;
socklen_t addrlen = sizeof(addr);
if (getpeername(fd, &addr, &addrlen) == SOCKET_ERROR) {
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {SockAddrIn{}, Errno::SUCCESS};
}
ASSERT(addrlen == sizeof(sockaddr_in));
return {TranslateToSockAddrIn(addr), Errno::SUCCESS};
}
std::pair<SockAddrIn, Errno> Socket::GetSockName() {
sockaddr addr;
socklen_t addrlen = sizeof(addr);
if (getsockname(fd, &addr, &addrlen) == SOCKET_ERROR) {
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {SockAddrIn{}, Errno::SUCCESS};
}
ASSERT(addrlen == sizeof(sockaddr_in));
return {TranslateToSockAddrIn(addr), Errno::SUCCESS};
}
Errno Socket::Bind(SockAddrIn addr) {
const sockaddr addr_in = TranslateFromSockAddrIn(addr);
if (bind(fd, &addr_in, sizeof(addr_in)) != SOCKET_ERROR) {
return Errno::SUCCESS;
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
Errno Socket::Listen(s32 backlog) {
if (listen(fd, backlog) != SOCKET_ERROR) {
return Errno::SUCCESS;
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
Errno Socket::Shutdown(ShutdownHow how) {
int host_how = 0;
switch (how) {
case ShutdownHow::RD:
host_how = SD_RECEIVE;
break;
case ShutdownHow::WR:
host_how = SD_SEND;
break;
case ShutdownHow::RDWR:
host_how = SD_BOTH;
break;
default:
UNIMPLEMENTED_MSG("Unimplemented flag how={}", static_cast<int>(how));
return Errno::SUCCESS;
}
if (shutdown(fd, host_how) != SOCKET_ERROR) {
return Errno::SUCCESS;
}
switch (const int ec = LastError()) {
case WSAENOTCONN:
LOG_ERROR(Service, "ENOTCONN generated");
return Errno::NOTCONN;
default:
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
}
std::pair<s32, Errno> Socket::Recv(int flags, std::vector<u8>& message) {
ASSERT(flags == 0);
ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max()));
const auto result =
recv(fd, reinterpret_cast<char*>(message.data()), static_cast<int>(message.size()), 0);
if (result != SOCKET_ERROR) {
return {static_cast<s32>(result), Errno::SUCCESS};
}
switch (const int ec = LastError()) {
case WSAEWOULDBLOCK:
LOG_DEBUG(Service, "EAGAIN generated");
return {-1, Errno::AGAIN};
case WSAENOTCONN:
LOG_ERROR(Service, "ENOTCONN generated");
return {-1, Errno::NOTCONN};
default:
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {0, Errno::SUCCESS};
}
}
std::pair<s32, Errno> Socket::RecvFrom(int flags, std::vector<u8>& message, SockAddrIn* addr) {
ASSERT(flags == 0);
ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max()));
sockaddr addr_in{};
socklen_t addrlen = sizeof(addr_in);
socklen_t* const p_addrlen = addr ? &addrlen : nullptr;
sockaddr* const p_addr_in = addr ? &addr_in : nullptr;
const auto result = recvfrom(fd, reinterpret_cast<char*>(message.data()),
static_cast<int>(message.size()), 0, p_addr_in, p_addrlen);
if (result != SOCKET_ERROR) {
if (addr) {
ASSERT(addrlen == sizeof(addr_in));
*addr = TranslateToSockAddrIn(addr_in);
}
return {static_cast<s32>(result), Errno::SUCCESS};
}
switch (const int ec = LastError()) {
case WSAEWOULDBLOCK:
LOG_DEBUG(Service, "EAGAIN generated");
return {-1, Errno::AGAIN};
case WSAENOTCONN:
LOG_ERROR(Service, "ENOTCONN generated");
return {-1, Errno::NOTCONN};
default:
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {-1, Errno::SUCCESS};
}
}
std::pair<s32, Errno> Socket::Send(const std::vector<u8>& message, int flags) {
ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max()));
ASSERT(flags == 0);
const auto result = send(fd, reinterpret_cast<const char*>(message.data()),
static_cast<int>(message.size()), 0);
if (result != SOCKET_ERROR) {
return {static_cast<s32>(result), Errno::SUCCESS};
}
const int ec = LastError();
switch (ec) {
case WSAEWOULDBLOCK:
LOG_DEBUG(Service, "EAGAIN generated");
return {-1, Errno::AGAIN};
case WSAENOTCONN:
LOG_ERROR(Service, "ENOTCONN generated");
return {-1, Errno::NOTCONN};
default:
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {-1, Errno::SUCCESS};
}
}
std::pair<s32, Errno> Socket::SendTo(u32 flags, const std::vector<u8>& message,
const SockAddrIn* addr) {
ASSERT(flags == 0);
const sockaddr* to = nullptr;
const int tolen = addr ? 0 : sizeof(sockaddr);
sockaddr host_addr_in;
if (addr) {
host_addr_in = TranslateFromSockAddrIn(*addr);
to = &host_addr_in;
}
const auto result = sendto(fd, reinterpret_cast<const char*>(message.data()),
static_cast<int>(message.size()), 0, to, tolen);
if (result != SOCKET_ERROR) {
return {static_cast<s32>(result), Errno::SUCCESS};
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return {-1, Errno::SUCCESS};
}
Errno Socket::Close() {
[[maybe_unused]] const int result = closesocket(fd);
ASSERT(result == 0);
fd = INVALID_SOCKET;
return Errno::SUCCESS;
}
Errno Socket::SetLinger(bool enable, u32 linger) {
return SetSockOpt(fd, SO_LINGER, MakeLinger(enable, linger));
}
Errno Socket::SetReuseAddr(bool enable) {
return SetSockOpt<u32>(fd, SO_REUSEADDR, enable ? 1 : 0);
}
Errno Socket::SetBroadcast(bool enable) {
return SetSockOpt<u32>(fd, SO_BROADCAST, enable ? 1 : 0);
}
Errno Socket::SetSndBuf(u32 value) {
return SetSockOpt(fd, SO_SNDBUF, value);
}
Errno Socket::SetRcvBuf(u32 value) {
return SetSockOpt(fd, SO_RCVBUF, value);
}
Errno Socket::SetSndTimeo(u32 value) {
return SetSockOpt(fd, SO_SNDTIMEO, value);
}
Errno Socket::SetRcvTimeo(u32 value) {
return SetSockOpt(fd, SO_RCVTIMEO, value);
}
Errno Socket::SetNonBlock(bool enable) {
if (EnableNonBlock(fd, enable)) {
return Errno::SUCCESS;
}
const int ec = LastError();
UNREACHABLE_MSG("Unhandled host socket error={}", ec);
return Errno::SUCCESS;
}
bool Socket::IsOpened() const {
return fd != INVALID_SOCKET;
}
} // namespace Network