diff options
Diffstat (limited to 'src/core/hle/kernel/hle_ipc.cpp')
-rw-r--r-- | src/core/hle/kernel/hle_ipc.cpp | 94 |
1 files changed, 90 insertions, 4 deletions
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp index 5a74645c7..656405dd6 100644 --- a/src/core/hle/kernel/hle_ipc.cpp +++ b/src/core/hle/kernel/hle_ipc.cpp @@ -8,6 +8,7 @@ #include "core/hle/kernel/handle_table.h" #include "core/hle/kernel/hle_ipc.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/process.h" #include "core/hle/kernel/server_session.h" namespace Kernel { @@ -24,12 +25,97 @@ void SessionRequestHandler::ClientDisconnected(SharedPtr<ServerSession> server_s HLERequestContext::~HLERequestContext() = default; -SharedPtr<Object> HLERequestContext::GetIncomingHandle(Handle id_from_cmdbuf) const { - return Kernel::g_handle_table.GetGeneric(id_from_cmdbuf); +SharedPtr<Object> HLERequestContext::GetIncomingHandle(u32 id_from_cmdbuf) const { + ASSERT(id_from_cmdbuf < request_handles.size()); + return request_handles[id_from_cmdbuf]; } -Handle HLERequestContext::AddOutgoingHandle(SharedPtr<Object> object) { - return Kernel::g_handle_table.Create(object).Unwrap(); +u32 HLERequestContext::AddOutgoingHandle(SharedPtr<Object> object) { + request_handles.push_back(std::move(object)); + return request_handles.size() - 1; +} + +ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf, + Process& src_process, + HandleTable& src_table) { + IPC::Header header{src_cmdbuf[0]}; + + size_t untranslated_size = 1u + header.normal_params_size; + size_t command_size = untranslated_size + header.translate_params_size; + ASSERT(command_size <= IPC::COMMAND_BUFFER_LENGTH); // TODO(yuriks): Return error + + std::copy_n(src_cmdbuf, untranslated_size, cmd_buf.begin()); + + size_t i = untranslated_size; + while (i < command_size) { + u32 descriptor = cmd_buf[i] = src_cmdbuf[i]; + i += 1; + + switch (IPC::GetDescriptorType(descriptor)) { + case IPC::DescriptorType::CopyHandle: + case IPC::DescriptorType::MoveHandle: { + u32 num_handles = IPC::HandleNumberFromDesc(descriptor); + ASSERT(i + num_handles <= command_size); // TODO(yuriks): Return error + for (u32 j = 0; j < num_handles; ++j) { + Handle handle = src_cmdbuf[i]; + SharedPtr<Object> object = src_table.GetGeneric(handle); + ASSERT(object != nullptr); // TODO(yuriks): Return error + if (descriptor == IPC::DescriptorType::MoveHandle) { + src_table.Close(handle); + } + + cmd_buf[i++] = AddOutgoingHandle(std::move(object)); + } + break; + } + case IPC::DescriptorType::CallingPid: { + cmd_buf[i++] = src_process.process_id; + break; + } + default: + UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor); + } + } + + return RESULT_SUCCESS; +} + +ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process, + HandleTable& dst_table) const { + IPC::Header header{cmd_buf[0]}; + + size_t untranslated_size = 1u + header.normal_params_size; + size_t command_size = untranslated_size + header.translate_params_size; + ASSERT(command_size <= IPC::COMMAND_BUFFER_LENGTH); + + std::copy_n(cmd_buf.begin(), untranslated_size, dst_cmdbuf); + + size_t i = untranslated_size; + while (i < command_size) { + u32 descriptor = dst_cmdbuf[i] = cmd_buf[i]; + i += 1; + + switch (IPC::GetDescriptorType(descriptor)) { + case IPC::DescriptorType::CopyHandle: + case IPC::DescriptorType::MoveHandle: { + // HLE services don't use handles, so we treat both CopyHandle and MoveHandle equally + u32 num_handles = IPC::HandleNumberFromDesc(descriptor); + ASSERT(i + num_handles <= command_size); + for (u32 j = 0; j < num_handles; ++j) { + SharedPtr<Object> object = GetIncomingHandle(cmd_buf[i]); + + // TODO(yuriks): Figure out the proper error handling for if this fails + Handle handle = dst_table.Create(object).Unwrap(); + dst_cmdbuf[i++] = handle; + } + break; + } + default: + UNIMPLEMENTED_MSG("Unsupported handle translation: 0x%08X", descriptor); + } + } + + return RESULT_SUCCESS; } } // namespace Kernel |