yuzu/src/core/hle/service/sockets/bsd.cpp

1062 lines
32 KiB
C++

// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <array>
#include <memory>
#include <utility>
#include <vector>
#include <fmt/format.h>
#include "common/microprofile.h"
#include "common/socket_types.h"
#include "core/core.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/sockets/bsd.h"
#include "core/hle/service/sockets/sockets_translate.h"
#include "core/internal_network/network.h"
#include "core/internal_network/socket_proxy.h"
#include "core/internal_network/sockets.h"
#include "network/network.h"
using Common::Expected;
using Common::Unexpected;
namespace Service::Sockets {
namespace {
bool IsConnectionBased(Type type) {
switch (type) {
case Type::STREAM:
return true;
case Type::DGRAM:
return false;
default:
UNIMPLEMENTED_MSG("Unimplemented type={}", type);
return false;
}
}
template <typename T>
T GetValue(std::span<const u8> buffer) {
T t{};
std::memcpy(&t, buffer.data(), std::min(sizeof(T), buffer.size()));
return t;
}
template <typename T>
void PutValue(std::span<u8> buffer, const T& t) {
std::memcpy(buffer.data(), &t, std::min(sizeof(T), buffer.size()));
}
} // Anonymous namespace
void BSD::PollWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->PollImpl(write_buffer, read_buffer, nfds, timeout);
}
void BSD::PollWork::Response(HLERequestContext& ctx) {
if (write_buffer.size() > 0) {
ctx.WriteBuffer(write_buffer);
}
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
}
void BSD::AcceptWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->AcceptImpl(fd, write_buffer);
}
void BSD::AcceptWork::Response(HLERequestContext& ctx) {
if (write_buffer.size() > 0) {
ctx.WriteBuffer(write_buffer);
}
IPC::ResponseBuilder rb{ctx, 5};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
rb.Push<u32>(static_cast<u32>(write_buffer.size()));
}
void BSD::ConnectWork::Execute(BSD* bsd) {
bsd_errno = bsd->ConnectImpl(fd, addr);
}
void BSD::ConnectWork::Response(HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(bsd_errno == Errno::SUCCESS ? 0 : -1);
rb.PushEnum(bsd_errno);
}
void BSD::RecvWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->RecvImpl(fd, flags, message);
}
void BSD::RecvWork::Response(HLERequestContext& ctx) {
ctx.WriteBuffer(message);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
}
void BSD::RecvFromWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->RecvFromImpl(fd, flags, message, addr);
}
void BSD::RecvFromWork::Response(HLERequestContext& ctx) {
ctx.WriteBuffer(message, 0);
if (!addr.empty()) {
ctx.WriteBuffer(addr, 1);
}
IPC::ResponseBuilder rb{ctx, 5};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
rb.Push<u32>(static_cast<u32>(addr.size()));
}
void BSD::SendWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->SendImpl(fd, flags, message);
}
void BSD::SendWork::Response(HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
}
void BSD::SendToWork::Execute(BSD* bsd) {
std::tie(ret, bsd_errno) = bsd->SendToImpl(fd, flags, message, addr);
}
void BSD::SendToWork::Response(HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
}
void BSD::RegisterClient(HLERequestContext& ctx) {
LOG_WARNING(Service, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(ResultSuccess);
rb.Push<s32>(0); // bsd errno
}
void BSD::StartMonitoring(HLERequestContext& ctx) {
LOG_WARNING(Service, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void BSD::Socket(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u32 domain = rp.Pop<u32>();
const u32 type = rp.Pop<u32>();
const u32 protocol = rp.Pop<u32>();
LOG_DEBUG(Service, "called. domain={} type={} protocol={}", domain, type, protocol);
const auto [fd, bsd_errno] = SocketImpl(static_cast<Domain>(domain), static_cast<Type>(type),
static_cast<Protocol>(protocol));
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(fd);
rb.PushEnum(bsd_errno);
}
void BSD::Select(HLERequestContext& ctx) {
LOG_DEBUG(Service, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<u32>(0); // ret
rb.Push<u32>(0); // bsd errno
}
void BSD::Poll(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 nfds = rp.Pop<s32>();
const s32 timeout = rp.Pop<s32>();
LOG_DEBUG(Service, "called. nfds={} timeout={}", nfds, timeout);
ExecuteWork(ctx, PollWork{
.nfds = nfds,
.timeout = timeout,
.read_buffer = ctx.ReadBuffer(),
.write_buffer = std::vector<u8>(ctx.GetWriteBufferSize()),
});
}
void BSD::Accept(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={}", fd);
ExecuteWork(ctx, AcceptWork{
.fd = fd,
.write_buffer = std::vector<u8>(ctx.GetWriteBufferSize()),
});
}
void BSD::Bind(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} addrlen={}", fd, ctx.GetReadBufferSize());
BuildErrnoResponse(ctx, BindImpl(fd, ctx.ReadBuffer()));
}
void BSD::Connect(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} addrlen={}", fd, ctx.GetReadBufferSize());
ExecuteWork(ctx, ConnectWork{
.fd = fd,
.addr = ctx.ReadBuffer(),
});
}
void BSD::GetPeerName(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={}", fd);
std::vector<u8> write_buffer(ctx.GetWriteBufferSize());
const Errno bsd_errno = GetPeerNameImpl(fd, write_buffer);
ctx.WriteBuffer(write_buffer);
IPC::ResponseBuilder rb{ctx, 5};
rb.Push(ResultSuccess);
rb.Push<s32>(bsd_errno != Errno::SUCCESS ? -1 : 0);
rb.PushEnum(bsd_errno);
rb.Push<u32>(static_cast<u32>(write_buffer.size()));
}
void BSD::GetSockName(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={}", fd);
std::vector<u8> write_buffer(ctx.GetWriteBufferSize());
const Errno bsd_errno = GetSockNameImpl(fd, write_buffer);
ctx.WriteBuffer(write_buffer);
IPC::ResponseBuilder rb{ctx, 5};
rb.Push(ResultSuccess);
rb.Push<s32>(bsd_errno != Errno::SUCCESS ? -1 : 0);
rb.PushEnum(bsd_errno);
rb.Push<u32>(static_cast<u32>(write_buffer.size()));
}
void BSD::GetSockOpt(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 level = rp.Pop<u32>();
const auto optname = static_cast<OptName>(rp.Pop<u32>());
std::vector<u8> optval(ctx.GetWriteBufferSize());
LOG_DEBUG(Service, "called. fd={} level={} optname=0x{:x} len=0x{:x}", fd, level, optname,
optval.size());
const Errno err = GetSockOptImpl(fd, level, optname, optval);
ctx.WriteBuffer(optval);
IPC::ResponseBuilder rb{ctx, 5};
rb.Push(ResultSuccess);
rb.Push<s32>(err == Errno::SUCCESS ? 0 : -1);
rb.PushEnum(err);
rb.Push<u32>(static_cast<u32>(optval.size()));
}
void BSD::Listen(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const s32 backlog = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} backlog={}", fd, backlog);
BuildErrnoResponse(ctx, ListenImpl(fd, backlog));
}
void BSD::Fcntl(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const s32 cmd = rp.Pop<s32>();
const s32 arg = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} cmd={} arg={}", fd, cmd, arg);
const auto [ret, bsd_errno] = FcntlImpl(fd, static_cast<FcntlCmd>(cmd), arg);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(ret);
rb.PushEnum(bsd_errno);
}
void BSD::SetSockOpt(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 level = rp.Pop<u32>();
const OptName optname = static_cast<OptName>(rp.Pop<u32>());
const auto optval = ctx.ReadBuffer();
LOG_DEBUG(Service, "called. fd={} level={} optname=0x{:x} optlen={}", fd, level,
static_cast<u32>(optname), optval.size());
BuildErrnoResponse(ctx, SetSockOptImpl(fd, level, optname, optval));
}
void BSD::Shutdown(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const s32 how = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} how={}", fd, how);
BuildErrnoResponse(ctx, ShutdownImpl(fd, how));
}
void BSD::Recv(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 flags = rp.Pop<u32>();
LOG_DEBUG(Service, "called. fd={} flags=0x{:x} len={}", fd, flags, ctx.GetWriteBufferSize());
ExecuteWork(ctx, RecvWork{
.fd = fd,
.flags = flags,
.message = std::vector<u8>(ctx.GetWriteBufferSize()),
});
}
void BSD::RecvFrom(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 flags = rp.Pop<u32>();
LOG_DEBUG(Service, "called. fd={} flags=0x{:x} len={} addrlen={}", fd, flags,
ctx.GetWriteBufferSize(0), ctx.GetWriteBufferSize(1));
ExecuteWork(ctx, RecvFromWork{
.fd = fd,
.flags = flags,
.message = std::vector<u8>(ctx.GetWriteBufferSize(0)),
.addr = std::vector<u8>(ctx.GetWriteBufferSize(1)),
});
}
void BSD::Send(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 flags = rp.Pop<u32>();
LOG_DEBUG(Service, "called. fd={} flags=0x{:x} len={}", fd, flags, ctx.GetReadBufferSize());
ExecuteWork(ctx, SendWork{
.fd = fd,
.flags = flags,
.message = ctx.ReadBuffer(),
});
}
void BSD::SendTo(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
const u32 flags = rp.Pop<u32>();
LOG_DEBUG(Service, "called. fd={} flags=0x{} len={} addrlen={}", fd, flags,
ctx.GetReadBufferSize(0), ctx.GetReadBufferSize(1));
ExecuteWork(ctx, SendToWork{
.fd = fd,
.flags = flags,
.message = ctx.ReadBuffer(0),
.addr = ctx.ReadBuffer(1),
});
}
void BSD::Write(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={} len={}", fd, ctx.GetReadBufferSize());
ExecuteWork(ctx, SendWork{
.fd = fd,
.flags = 0,
.message = ctx.ReadBuffer(),
});
}
void BSD::Read(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_WARNING(Service, "(STUBBED) called. fd={} len={}", fd, ctx.GetWriteBufferSize());
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<u32>(0); // ret
rb.Push<u32>(0); // bsd errno
}
void BSD::Close(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const s32 fd = rp.Pop<s32>();
LOG_DEBUG(Service, "called. fd={}", fd);
BuildErrnoResponse(ctx, CloseImpl(fd));
}
void BSD::DuplicateSocket(HLERequestContext& ctx) {
struct InputParameters {
s32 fd;
u64 reserved;
};
static_assert(sizeof(InputParameters) == 0x10);
struct OutputParameters {
s32 ret;
Errno bsd_errno;
};
static_assert(sizeof(OutputParameters) == 0x8);
IPC::RequestParser rp{ctx};
auto input = rp.PopRaw<InputParameters>();
Expected<s32, Errno> res = DuplicateSocketImpl(input.fd);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.PushRaw(OutputParameters{
.ret = res.value_or(0),
.bsd_errno = res ? Errno::SUCCESS : res.error(),
});
}
void BSD::EventFd(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 initval = rp.Pop<u64>();
const u32 flags = rp.Pop<u32>();
LOG_WARNING(Service, "(STUBBED) called. initval={}, flags={}", initval, flags);
BuildErrnoResponse(ctx, Errno::SUCCESS);
}
template <typename Work>
void BSD::ExecuteWork(HLERequestContext& ctx, Work work) {
work.Execute(this);
work.Response(ctx);
}
std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protocol) {
if (type == Type::SEQPACKET) {
UNIMPLEMENTED_MSG("SOCK_SEQPACKET errno management");
} else if (type == Type::RAW && (domain != Domain::INET || protocol != Protocol::ICMP)) {
UNIMPLEMENTED_MSG("SOCK_RAW errno management");
}
[[maybe_unused]] const bool unk_flag = (static_cast<u32>(type) & 0x20000000) != 0;
UNIMPLEMENTED_IF_MSG(unk_flag, "Unknown flag in type");
type = static_cast<Type>(static_cast<u32>(type) & ~0x20000000);
const s32 fd = FindFreeFileDescriptorHandle();
if (fd < 0) {
LOG_ERROR(Service, "No more file descriptors available");
return {-1, Errno::MFILE};
}
file_descriptors[fd] = FileDescriptor{};
FileDescriptor& descriptor = *file_descriptors[fd];
// ENONMEM might be thrown here
LOG_INFO(Service, "New socket fd={}", fd);
auto room_member = room_network.GetRoomMember().lock();
if (room_member && room_member->IsConnected()) {
descriptor.socket = std::make_shared<Network::ProxySocket>(room_network);
} else {
descriptor.socket = std::make_shared<Network::Socket>();
}
descriptor.socket->Initialize(Translate(domain), Translate(type), Translate(protocol));
descriptor.is_connection_based = IsConnectionBased(type);
return {fd, Errno::SUCCESS};
}
std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::span<const u8> read_buffer,
s32 nfds, s32 timeout) {
if (nfds <= 0) {
// When no entries are provided, -1 is returned with errno zero
return {-1, Errno::SUCCESS};
}
if (read_buffer.size() < nfds * sizeof(PollFD)) {
return {-1, Errno::INVAL};
}
if (write_buffer.size() < nfds * sizeof(PollFD)) {
return {-1, Errno::INVAL};
}
std::vector<PollFD> fds(nfds);
std::memcpy(fds.data(), read_buffer.data(), nfds * sizeof(PollFD));
if (timeout >= 0) {
const s64 seconds = timeout / 1000;
const u64 nanoseconds = 1'000'000 * (static_cast<u64>(timeout) % 1000);
if (seconds < 0) {
return {-1, Errno::INVAL};
}
if (nanoseconds > 999'999'999) {
return {-1, Errno::INVAL};
}
} else if (timeout != -1) {
return {-1, Errno::INVAL};
}
for (PollFD& pollfd : fds) {
ASSERT(False(pollfd.revents));
if (pollfd.fd > static_cast<s32>(MAX_FD) || pollfd.fd < 0) {
LOG_ERROR(Service, "File descriptor handle={} is invalid", pollfd.fd);
pollfd.revents = PollEvents{};
return {0, Errno::SUCCESS};
}
const std::optional<FileDescriptor>& descriptor = file_descriptors[pollfd.fd];
if (!descriptor) {
LOG_TRACE(Service, "File descriptor handle={} is not allocated", pollfd.fd);
pollfd.revents = PollEvents::Nval;
return {0, Errno::SUCCESS};
}
}
std::vector<Network::PollFD> host_pollfds(fds.size());
std::transform(fds.begin(), fds.end(), host_pollfds.begin(), [this](PollFD pollfd) {
Network::PollFD result;
result.socket = file_descriptors[pollfd.fd]->socket.get();
result.events = Translate(pollfd.events);
result.revents = Network::PollEvents{};
return result;
});
const auto result = Network::Poll(host_pollfds, timeout);
const size_t num = host_pollfds.size();
for (size_t i = 0; i < num; ++i) {
fds[i].revents = Translate(host_pollfds[i].revents);
}
std::memcpy(write_buffer.data(), fds.data(), nfds * sizeof(PollFD));
return Translate(result);
}
std::pair<s32, Errno> BSD::AcceptImpl(s32 fd, std::vector<u8>& write_buffer) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
const s32 new_fd = FindFreeFileDescriptorHandle();
if (new_fd < 0) {
LOG_ERROR(Service, "No more file descriptors available");
return {-1, Errno::MFILE};
}
FileDescriptor& descriptor = *file_descriptors[fd];
auto [result, bsd_errno] = descriptor.socket->Accept();
if (bsd_errno != Network::Errno::SUCCESS) {
return {-1, Translate(bsd_errno)};
}
file_descriptors[new_fd] = FileDescriptor{};
FileDescriptor& new_descriptor = *file_descriptors[new_fd];
new_descriptor.socket = std::move(result.socket);
new_descriptor.is_connection_based = descriptor.is_connection_based;
const SockAddrIn guest_addr_in = Translate(result.sockaddr_in);
PutValue(write_buffer, guest_addr_in);
return {new_fd, Errno::SUCCESS};
}
Errno BSD::BindImpl(s32 fd, std::span<const u8> addr) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
ASSERT(addr.size() == sizeof(SockAddrIn));
auto addr_in = GetValue<SockAddrIn>(addr);
return Translate(file_descriptors[fd]->socket->Bind(Translate(addr_in)));
}
Errno BSD::ConnectImpl(s32 fd, std::span<const u8> addr) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
UNIMPLEMENTED_IF(addr.size() != sizeof(SockAddrIn));
auto addr_in = GetValue<SockAddrIn>(addr);
return Translate(file_descriptors[fd]->socket->Connect(Translate(addr_in)));
}
Errno BSD::GetPeerNameImpl(s32 fd, std::vector<u8>& write_buffer) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
const auto [addr_in, bsd_errno] = file_descriptors[fd]->socket->GetPeerName();
if (bsd_errno != Network::Errno::SUCCESS) {
return Translate(bsd_errno);
}
const SockAddrIn guest_addrin = Translate(addr_in);
ASSERT(write_buffer.size() >= sizeof(guest_addrin));
write_buffer.resize(sizeof(guest_addrin));
PutValue(write_buffer, guest_addrin);
return Translate(bsd_errno);
}
Errno BSD::GetSockNameImpl(s32 fd, std::vector<u8>& write_buffer) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
const auto [addr_in, bsd_errno] = file_descriptors[fd]->socket->GetSockName();
if (bsd_errno != Network::Errno::SUCCESS) {
return Translate(bsd_errno);
}
const SockAddrIn guest_addrin = Translate(addr_in);
ASSERT(write_buffer.size() >= sizeof(guest_addrin));
write_buffer.resize(sizeof(guest_addrin));
PutValue(write_buffer, guest_addrin);
return Translate(bsd_errno);
}
Errno BSD::ListenImpl(s32 fd, s32 backlog) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
return Translate(file_descriptors[fd]->socket->Listen(backlog));
}
std::pair<s32, Errno> BSD::FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
FileDescriptor& descriptor = *file_descriptors[fd];
switch (cmd) {
case FcntlCmd::GETFL:
ASSERT(arg == 0);
return {descriptor.flags, Errno::SUCCESS};
case FcntlCmd::SETFL: {
const bool enable = (arg & Network::FLAG_O_NONBLOCK) != 0;
const Errno bsd_errno = Translate(descriptor.socket->SetNonBlock(enable));
if (bsd_errno != Errno::SUCCESS) {
return {-1, bsd_errno};
}
descriptor.flags = arg;
return {0, Errno::SUCCESS};
}
default:
UNIMPLEMENTED_MSG("Unimplemented cmd={}", cmd);
return {-1, Errno::SUCCESS};
}
}
Errno BSD::GetSockOptImpl(s32 fd, u32 level, OptName optname, std::vector<u8>& optval) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
if (level != static_cast<u32>(SocketLevel::SOCKET)) {
UNIMPLEMENTED_MSG("Unknown getsockopt level");
return Errno::SUCCESS;
}
Network::SocketBase* const socket = file_descriptors[fd]->socket.get();
switch (optname) {
case OptName::ERROR_: {
auto [pending_err, getsockopt_err] = socket->GetPendingError();
if (getsockopt_err == Network::Errno::SUCCESS) {
Errno translated_pending_err = Translate(pending_err);
ASSERT_OR_EXECUTE_MSG(
optval.size() == sizeof(Errno), { return Errno::INVAL; },
"Incorrect getsockopt option size");
optval.resize(sizeof(Errno));
PutValue(optval, translated_pending_err);
}
return Translate(getsockopt_err);
}
default:
UNIMPLEMENTED_MSG("Unimplemented optname={}", optname);
return Errno::SUCCESS;
}
}
Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, std::span<const u8> optval) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
if (level != static_cast<u32>(SocketLevel::SOCKET)) {
UNIMPLEMENTED_MSG("Unknown setsockopt level");
return Errno::SUCCESS;
}
Network::SocketBase* const socket = file_descriptors[fd]->socket.get();
if (optname == OptName::LINGER) {
ASSERT(optval.size() == sizeof(Linger));
auto linger = GetValue<Linger>(optval);
ASSERT(linger.onoff == 0 || linger.onoff == 1);
return Translate(socket->SetLinger(linger.onoff != 0, linger.linger));
}
ASSERT(optval.size() == sizeof(u32));
auto value = GetValue<u32>(optval);
switch (optname) {
case OptName::REUSEADDR:
ASSERT(value == 0 || value == 1);
return Translate(socket->SetReuseAddr(value != 0));
case OptName::KEEPALIVE:
ASSERT(value == 0 || value == 1);
return Translate(socket->SetKeepAlive(value != 0));
case OptName::BROADCAST:
ASSERT(value == 0 || value == 1);
return Translate(socket->SetBroadcast(value != 0));
case OptName::SNDBUF:
return Translate(socket->SetSndBuf(value));
case OptName::RCVBUF:
return Translate(socket->SetRcvBuf(value));
case OptName::SNDTIMEO:
return Translate(socket->SetSndTimeo(value));
case OptName::RCVTIMEO:
return Translate(socket->SetRcvTimeo(value));
case OptName::NOSIGPIPE:
LOG_WARNING(Service, "(STUBBED) setting NOSIGPIPE to {}", value);
return Errno::SUCCESS;
default:
UNIMPLEMENTED_MSG("Unimplemented optname={}", optname);
return Errno::SUCCESS;
}
}
Errno BSD::ShutdownImpl(s32 fd, s32 how) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
const Network::ShutdownHow host_how = Translate(static_cast<ShutdownHow>(how));
return Translate(file_descriptors[fd]->socket->Shutdown(host_how));
}
std::pair<s32, Errno> BSD::RecvImpl(s32 fd, u32 flags, std::vector<u8>& message) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
FileDescriptor& descriptor = *file_descriptors[fd];
// Apply flags
using Network::FLAG_MSG_DONTWAIT;
using Network::FLAG_O_NONBLOCK;
if ((flags & FLAG_MSG_DONTWAIT) != 0) {
flags &= ~FLAG_MSG_DONTWAIT;
if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
descriptor.socket->SetNonBlock(true);
}
}
const auto [ret, bsd_errno] = Translate(descriptor.socket->Recv(flags, message));
// Restore original state
if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
descriptor.socket->SetNonBlock(false);
}
return {ret, bsd_errno};
}
std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& message,
std::vector<u8>& addr) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
FileDescriptor& descriptor = *file_descriptors[fd];
Network::SockAddrIn addr_in{};
Network::SockAddrIn* p_addr_in = nullptr;
if (descriptor.is_connection_based) {
// Connection based file descriptors (e.g. TCP) zero addr
addr.clear();
} else {
p_addr_in = &addr_in;
}
// Apply flags
using Network::FLAG_MSG_DONTWAIT;
using Network::FLAG_O_NONBLOCK;
if ((flags & FLAG_MSG_DONTWAIT) != 0) {
flags &= ~FLAG_MSG_DONTWAIT;
if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
descriptor.socket->SetNonBlock(true);
}
}
const auto [ret, bsd_errno] = Translate(descriptor.socket->RecvFrom(flags, message, p_addr_in));
// Restore original state
if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
descriptor.socket->SetNonBlock(false);
}
if (p_addr_in) {
if (ret < 0) {
addr.clear();
} else {
ASSERT(addr.size() == sizeof(SockAddrIn));
const SockAddrIn result = Translate(addr_in);
PutValue(addr, result);
}
}
return {ret, bsd_errno};
}
std::pair<s32, Errno> BSD::SendImpl(s32 fd, u32 flags, std::span<const u8> message) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
return Translate(file_descriptors[fd]->socket->Send(message, flags));
}
std::pair<s32, Errno> BSD::SendToImpl(s32 fd, u32 flags, std::span<const u8> message,
std::span<const u8> addr) {
if (!IsFileDescriptorValid(fd)) {
return {-1, Errno::BADF};
}
Network::SockAddrIn addr_in;
Network::SockAddrIn* p_addr_in = nullptr;
if (!addr.empty()) {
ASSERT(addr.size() == sizeof(SockAddrIn));
auto guest_addr_in = GetValue<SockAddrIn>(addr);
addr_in = Translate(guest_addr_in);
p_addr_in = &addr_in;
}
return Translate(file_descriptors[fd]->socket->SendTo(flags, message, p_addr_in));
}
Errno BSD::CloseImpl(s32 fd) {
if (!IsFileDescriptorValid(fd)) {
return Errno::BADF;
}
const Errno bsd_errno = Translate(file_descriptors[fd]->socket->Close());
if (bsd_errno != Errno::SUCCESS) {
return bsd_errno;
}
LOG_INFO(Service, "Close socket fd={}", fd);
file_descriptors[fd].reset();
return bsd_errno;
}
Expected<s32, Errno> BSD::DuplicateSocketImpl(s32 fd) {
if (!IsFileDescriptorValid(fd)) {
return Unexpected(Errno::BADF);
}
const s32 new_fd = FindFreeFileDescriptorHandle();
if (new_fd < 0) {
LOG_ERROR(Service, "No more file descriptors available");
return Unexpected(Errno::MFILE);
}
file_descriptors[new_fd] = file_descriptors[fd];
return new_fd;
}
std::optional<std::shared_ptr<Network::SocketBase>> BSD::GetSocket(s32 fd) {
if (!IsFileDescriptorValid(fd)) {
return std::nullopt;
}
return file_descriptors[fd]->socket;
}
s32 BSD::FindFreeFileDescriptorHandle() noexcept {
for (s32 fd = 0; fd < static_cast<s32>(file_descriptors.size()); ++fd) {
if (!file_descriptors[fd]) {
return fd;
}
}
return -1;
}
bool BSD::IsFileDescriptorValid(s32 fd) const noexcept {
if (fd > static_cast<s32>(MAX_FD) || fd < 0) {
LOG_ERROR(Service, "Invalid file descriptor handle={}", fd);
return false;
}
if (!file_descriptors[fd]) {
LOG_ERROR(Service, "File descriptor handle={} is not allocated", fd);
return false;
}
return true;
}
void BSD::BuildErrnoResponse(HLERequestContext& ctx, Errno bsd_errno) const noexcept {
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push<s32>(bsd_errno == Errno::SUCCESS ? 0 : -1);
rb.PushEnum(bsd_errno);
}
void BSD::OnProxyPacketReceived(const Network::ProxyPacket& packet) {
for (auto& optional_descriptor : file_descriptors) {
if (!optional_descriptor.has_value()) {
continue;
}
FileDescriptor& descriptor = *optional_descriptor;
descriptor.socket.get()->HandleProxyPacket(packet);
}
}
BSD::BSD(Core::System& system_, const char* name)
: ServiceFramework{system_, name}, room_network{system_.GetRoomNetwork()} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &BSD::RegisterClient, "RegisterClient"},
{1, &BSD::StartMonitoring, "StartMonitoring"},
{2, &BSD::Socket, "Socket"},
{3, nullptr, "SocketExempt"},
{4, nullptr, "Open"},
{5, &BSD::Select, "Select"},
{6, &BSD::Poll, "Poll"},
{7, nullptr, "Sysctl"},
{8, &BSD::Recv, "Recv"},
{9, &BSD::RecvFrom, "RecvFrom"},
{10, &BSD::Send, "Send"},
{11, &BSD::SendTo, "SendTo"},
{12, &BSD::Accept, "Accept"},
{13, &BSD::Bind, "Bind"},
{14, &BSD::Connect, "Connect"},
{15, &BSD::GetPeerName, "GetPeerName"},
{16, &BSD::GetSockName, "GetSockName"},
{17, &BSD::GetSockOpt, "GetSockOpt"},
{18, &BSD::Listen, "Listen"},
{19, nullptr, "Ioctl"},
{20, &BSD::Fcntl, "Fcntl"},
{21, &BSD::SetSockOpt, "SetSockOpt"},
{22, &BSD::Shutdown, "Shutdown"},
{23, nullptr, "ShutdownAllSockets"},
{24, &BSD::Write, "Write"},
{25, &BSD::Read, "Read"},
{26, &BSD::Close, "Close"},
{27, &BSD::DuplicateSocket, "DuplicateSocket"},
{28, nullptr, "GetResourceStatistics"},
{29, nullptr, "RecvMMsg"},
{30, nullptr, "SendMMsg"},
{31, &BSD::EventFd, "EventFd"},
{32, nullptr, "RegisterResourceStatisticsName"},
{33, nullptr, "Initialize2"},
};
// clang-format on
RegisterHandlers(functions);
if (auto room_member = room_network.GetRoomMember().lock()) {
proxy_packet_received = room_member->BindOnProxyPacketReceived(
[this](const Network::ProxyPacket& packet) { OnProxyPacketReceived(packet); });
} else {
LOG_ERROR(Service, "Network isn't initialized");
}
}
BSD::~BSD() {
if (auto room_member = room_network.GetRoomMember().lock()) {
room_member->Unbind(proxy_packet_received);
}
}
std::unique_lock<std::mutex> BSD::LockService() {
// Do not lock socket IClient instances.
return {};
}
BSDCFG::BSDCFG(Core::System& system_) : ServiceFramework{system_, "bsdcfg"} {
// clang-format off
static const FunctionInfo functions[] = {
{0, nullptr, "SetIfUp"},
{1, nullptr, "SetIfUpWithEvent"},
{2, nullptr, "CancelIf"},
{3, nullptr, "SetIfDown"},
{4, nullptr, "GetIfState"},
{5, nullptr, "DhcpRenew"},
{6, nullptr, "AddStaticArpEntry"},
{7, nullptr, "RemoveArpEntry"},
{8, nullptr, "LookupArpEntry"},
{9, nullptr, "LookupArpEntry2"},
{10, nullptr, "ClearArpEntries"},
{11, nullptr, "ClearArpEntries2"},
{12, nullptr, "PrintArpEntries"},
{13, nullptr, "Unknown13"},
{14, nullptr, "Unknown14"},
{15, nullptr, "Unknown15"},
};
// clang-format on
RegisterHandlers(functions);
}
BSDCFG::~BSDCFG() = default;
} // namespace Service::Sockets