mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-29 21:56:04 +00:00
426 lines
15 KiB
C++
426 lines
15 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
#include "htclow_mux.hpp"
|
|
#include "../htclow_packet_factory.hpp"
|
|
#include "../ctrl/htclow_ctrl_state_machine.hpp"
|
|
|
|
namespace ams::htclow::mux {
|
|
|
|
Mux::Mux(PacketFactory *pf, ctrl::HtcctrlStateMachine *sm)
|
|
: m_packet_factory(pf), m_state_machine(sm), m_task_manager(), m_event(os::EventClearMode_ManualClear),
|
|
m_channel_impl_map(pf, sm, std::addressof(m_task_manager), std::addressof(m_event)), m_global_send_buffer(pf),
|
|
m_mutex(), m_state(MuxState::Normal), m_version(ProtocolVersion)
|
|
{
|
|
/* ... */
|
|
}
|
|
|
|
void Mux::SetVersion(u16 version) {
|
|
/* Set our version. */
|
|
m_version = version;
|
|
|
|
/* Set all entries in our map. */
|
|
/* NOTE: Nintendo does this highly inefficiently... */
|
|
for (auto &pair : m_channel_impl_map.GetMap()) {
|
|
m_channel_impl_map[pair.second].SetVersion(m_version);
|
|
}
|
|
}
|
|
|
|
Result Mux::CheckReceivedHeader(const PacketHeader &header) const {
|
|
/* Check the packet signature. */
|
|
AMS_ASSERT(header.signature == HtcGen2Signature);
|
|
|
|
/* Switch on the packet type. */
|
|
switch (header.packet_type) {
|
|
case PacketType_Data:
|
|
R_UNLESS(header.version == m_version, htclow::ResultProtocolError());
|
|
R_UNLESS(header.body_size <= sizeof(PacketBody), htclow::ResultProtocolError());
|
|
break;
|
|
case PacketType_MaxData:
|
|
R_UNLESS(header.version == m_version, htclow::ResultProtocolError());
|
|
R_UNLESS(header.body_size == 0, htclow::ResultProtocolError());
|
|
break;
|
|
case PacketType_Error:
|
|
R_UNLESS(header.body_size == 0, htclow::ResultProtocolError());
|
|
break;
|
|
AMS_UNREACHABLE_DEFAULT_CASE();
|
|
}
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result Mux::ProcessReceivePacket(const PacketHeader &header, const void *body, size_t body_size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Process for the channel. */
|
|
if (auto it = m_channel_impl_map.GetMap().find(header.channel); it != m_channel_impl_map.GetMap().end()) {
|
|
R_RETURN(m_channel_impl_map[it->second].ProcessReceivePacket(header, body, body_size));
|
|
} else {
|
|
if (header.packet_type == PacketType_Data || header.packet_type == PacketType_MaxData) {
|
|
this->SendErrorPacket(header.channel);
|
|
}
|
|
R_THROW(htclow::ResultChannelNotExist());
|
|
}
|
|
}
|
|
|
|
bool Mux::QuerySendPacket(PacketHeader *header, PacketBody *body, int *out_body_size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Check for an error packet. */
|
|
/* NOTE: Nintendo checks this once per iteration of the below loop. */
|
|
/* The extra checks are unnecessary, because we hold our mutex. */
|
|
if (auto *error_packet = m_global_send_buffer.GetNextPacket(); error_packet != nullptr) {
|
|
std::memcpy(header, error_packet->GetHeader(), sizeof(*header));
|
|
*out_body_size = 0;
|
|
return true;
|
|
}
|
|
|
|
/* Iterate the map, checking each channel for a valid valid packet. */
|
|
for (auto &pair : m_channel_impl_map.GetMap()) {
|
|
/* Get the current channel impl. */
|
|
/* See if the channel has something for us to send. */
|
|
if (m_channel_impl_map[pair.second].QuerySendPacket(header, body, out_body_size)) {
|
|
return this->IsSendable(header->packet_type);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void Mux::RemovePacket(const PacketHeader &header) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Remove the packet from the appropriate source. */
|
|
if (header.packet_type == PacketType_Error) {
|
|
m_global_send_buffer.RemovePacket();
|
|
} else if (auto it = m_channel_impl_map.GetMap().find(header.channel); it != m_channel_impl_map.GetMap().end()) {
|
|
m_channel_impl_map[it->second].RemovePacket(header);
|
|
}
|
|
|
|
/* Notify the task manager. */
|
|
m_task_manager.NotifySendReady();
|
|
}
|
|
|
|
void Mux::UpdateChannelState() {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Update the state of all channels in our map. */
|
|
/* NOTE: Nintendo does this highly inefficiently... */
|
|
for (auto pair : m_channel_impl_map.GetMap()) {
|
|
m_channel_impl_map[pair.second].UpdateState();
|
|
}
|
|
}
|
|
|
|
void Mux::UpdateMuxState() {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Update whether we're sleeping. */
|
|
if (m_state_machine->IsSleeping()) {
|
|
m_state = MuxState::Sleep;
|
|
} else {
|
|
m_state = MuxState::Normal;
|
|
m_event.Signal();
|
|
}
|
|
}
|
|
|
|
Result Mux::CheckChannelExist(impl::ChannelInternalType channel) {
|
|
R_UNLESS(m_channel_impl_map.Exists(channel), htclow::ResultChannelNotExist());
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result Mux::SendErrorPacket(impl::ChannelInternalType channel) {
|
|
/* Create and send the packet. */
|
|
R_TRY(m_global_send_buffer.AddPacket(m_packet_factory->MakeErrorPacket(channel)));
|
|
|
|
/* Signal our event. */
|
|
m_event.Signal();
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
bool Mux::IsSendable(PacketType packet_type) const {
|
|
AMS_UNUSED(packet_type);
|
|
|
|
switch (m_state) {
|
|
case MuxState::Normal:
|
|
return true;
|
|
case MuxState::Sleep:
|
|
return false;
|
|
AMS_UNREACHABLE_DEFAULT_CASE();
|
|
}
|
|
}
|
|
|
|
Result Mux::Open(impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Check that the channel doesn't already exist. */
|
|
R_UNLESS(!m_channel_impl_map.Exists(channel), htclow::ResultChannelAlreadyExist());
|
|
|
|
/* Add the channel. */
|
|
R_TRY(m_channel_impl_map.AddChannel(channel));
|
|
|
|
/* Set the channel version. */
|
|
m_channel_impl_map.GetChannelImpl(channel).SetVersion(m_version);
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result Mux::Close(impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* If we have the channel, close it. */
|
|
if (auto it = m_channel_impl_map.GetMap().find(channel); it != m_channel_impl_map.GetMap().end()) {
|
|
/* Shut down the channel. */
|
|
m_channel_impl_map[it->second].ShutdownForce();
|
|
|
|
/* Remove the channel. */
|
|
R_ABORT_UNLESS(m_channel_impl_map.RemoveChannel(channel));
|
|
}
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result Mux::ConnectBegin(u32 *out_task_id, impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the connection. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoConnectBegin(out_task_id));
|
|
}
|
|
|
|
Result Mux::ConnectEnd(impl::ChannelInternalType channel, u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Get the trigger for the task. */
|
|
const auto trigger = m_task_manager.GetTrigger(task_id);
|
|
|
|
/* Free the task. */
|
|
m_task_manager.FreeTask(task_id);
|
|
|
|
/* Check that we didn't hit a disconnect. */
|
|
R_UNLESS(trigger != EventTrigger_Disconnect, htclow::ResultInvalidChannelStateDisconnected());
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the disconnection. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoConnectEnd());
|
|
}
|
|
|
|
ChannelState Mux::GetChannelState(impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
return m_channel_impl_map.GetChannelImpl(channel).GetChannelState();
|
|
}
|
|
|
|
os::EventType *Mux::GetChannelStateEvent(impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
return m_channel_impl_map.GetChannelImpl(channel).GetChannelStateEvent();
|
|
}
|
|
|
|
Result Mux::FlushBegin(u32 *out_task_id, impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the connection. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoFlush(out_task_id));
|
|
}
|
|
|
|
Result Mux::FlushEnd(u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Get the trigger for the task. */
|
|
const auto trigger = m_task_manager.GetTrigger(task_id);
|
|
|
|
/* Free the task. */
|
|
m_task_manager.FreeTask(task_id);
|
|
|
|
/* Check that we didn't hit a disconnect. */
|
|
R_UNLESS(trigger != EventTrigger_Disconnect, htclow::ResultInvalidChannelStateDisconnected());
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
os::EventType *Mux::GetTaskEvent(u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
return m_task_manager.GetTaskEvent(task_id);
|
|
}
|
|
|
|
Result Mux::ReceiveBegin(u32 *out_task_id, impl::ChannelInternalType channel, size_t size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the connection. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoReceiveBegin(out_task_id, size));
|
|
}
|
|
|
|
Result Mux::ReceiveEnd(size_t *out, void *dst, size_t dst_size, impl::ChannelInternalType channel, u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Free the task. */
|
|
m_task_manager.FreeTask(task_id);
|
|
|
|
/* If we have data, perform the receive. */
|
|
if (dst_size > 0) {
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the receive. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoReceiveEnd(out, dst, dst_size));
|
|
} else {
|
|
*out = 0;
|
|
R_SUCCEED();
|
|
}
|
|
}
|
|
|
|
Result Mux::SendBegin(u32 *out_task_id, size_t *out, const void *src, size_t src_size, impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the connection. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoSend(out_task_id, out, src, src_size));
|
|
}
|
|
|
|
Result Mux::SendEnd(u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Get the trigger for the task. */
|
|
const auto trigger = m_task_manager.GetTrigger(task_id);
|
|
|
|
/* Free the task. */
|
|
m_task_manager.FreeTask(task_id);
|
|
|
|
/* Check that we didn't hit a disconnect. */
|
|
R_UNLESS(trigger != EventTrigger_Disconnect, htclow::ResultInvalidChannelStateDisconnected());
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
Result Mux::WaitReceiveBegin(u32 *out_task_id, impl::ChannelInternalType channel, size_t size) {
|
|
R_RETURN(this->ReceiveBegin(out_task_id, channel, size));
|
|
}
|
|
|
|
Result Mux::WaitReceiveEnd(u32 task_id) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Get the trigger for the task. */
|
|
const auto trigger = m_task_manager.GetTrigger(task_id);
|
|
|
|
/* Free the task. */
|
|
m_task_manager.FreeTask(task_id);
|
|
|
|
/* Check that we didn't hit a disconnect. */
|
|
R_UNLESS(trigger != EventTrigger_Disconnect, htclow::ResultInvalidChannelStateDisconnected());
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
void Mux::SetConfig(impl::ChannelInternalType channel, const ChannelConfig &config) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
AMS_ABORT_UNLESS(it != m_channel_impl_map.GetMap().end());
|
|
|
|
/* Perform the connection. */
|
|
return m_channel_impl_map[it->second].SetConfig(config);
|
|
}
|
|
|
|
void Mux::SetSendBuffer(impl::ChannelInternalType channel, void *buf, size_t buf_size, size_t max_packet_size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
AMS_ABORT_UNLESS(it != m_channel_impl_map.GetMap().end());
|
|
|
|
/* Set the send buffer. */
|
|
m_channel_impl_map[it->second].SetSendBuffer(buf, buf_size, max_packet_size);
|
|
}
|
|
|
|
void Mux::SetSendBufferWithData(impl::ChannelInternalType channel, const void *buf, size_t buf_size, size_t max_packet_size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
AMS_ABORT_UNLESS(it != m_channel_impl_map.GetMap().end());
|
|
|
|
/* Set the send buffer. */
|
|
m_channel_impl_map[it->second].SetSendBufferWithData(buf, buf_size, max_packet_size);
|
|
}
|
|
|
|
void Mux::SetReceiveBuffer(impl::ChannelInternalType channel, void *buf, size_t buf_size) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
AMS_ABORT_UNLESS(it != m_channel_impl_map.GetMap().end());
|
|
|
|
/* Set the send buffer. */
|
|
m_channel_impl_map[it->second].SetReceiveBuffer(buf, buf_size);
|
|
}
|
|
|
|
Result Mux::Shutdown(impl::ChannelInternalType channel) {
|
|
/* Lock ourselves. */
|
|
std::scoped_lock lk(m_mutex);
|
|
|
|
/* Find the channel. */
|
|
auto it = m_channel_impl_map.GetMap().find(channel);
|
|
R_UNLESS(it != m_channel_impl_map.GetMap().end(), htclow::ResultChannelNotExist());
|
|
|
|
/* Perform the shutdown. */
|
|
R_RETURN(m_channel_impl_map[it->second].DoShutdown());
|
|
}
|
|
|
|
}
|