diff options
Diffstat (limited to 'src/core/hle/kernel/svc/svc_port.cpp')
-rw-r--r-- | src/core/hle/kernel/svc/svc_port.cpp | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/core/hle/kernel/svc/svc_port.cpp b/src/core/hle/kernel/svc/svc_port.cpp new file mode 100644 index 000000000..2e5d228bb --- /dev/null +++ b/src/core/hle/kernel/svc/svc_port.cpp @@ -0,0 +1,122 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "common/scope_exit.h" +#include "core/core.h" +#include "core/hle/kernel/k_client_port.h" +#include "core/hle/kernel/k_client_session.h" +#include "core/hle/kernel/k_port.h" +#include "core/hle/kernel/k_process.h" +#include "core/hle/kernel/svc.h" + +namespace Kernel::Svc { + +/// Connect to an OS service given the port name, returns the handle to the port to out +Result ConnectToNamedPort(Core::System& system, Handle* out, VAddr port_name_address) { + auto& memory = system.Memory(); + if (!memory.IsValidVirtualAddress(port_name_address)) { + LOG_ERROR(Kernel_SVC, + "Port Name Address is not a valid virtual address, port_name_address=0x{:016X}", + port_name_address); + return ResultNotFound; + } + + static constexpr std::size_t PortNameMaxLength = 11; + // Read 1 char beyond the max allowed port name to detect names that are too long. + const std::string port_name = memory.ReadCString(port_name_address, PortNameMaxLength + 1); + if (port_name.size() > PortNameMaxLength) { + LOG_ERROR(Kernel_SVC, "Port name is too long, expected {} but got {}", PortNameMaxLength, + port_name.size()); + return ResultOutOfRange; + } + + LOG_TRACE(Kernel_SVC, "called port_name={}", port_name); + + // Get the current handle table. + auto& kernel = system.Kernel(); + auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); + + // Find the client port. + auto port = kernel.CreateNamedServicePort(port_name); + if (!port) { + LOG_ERROR(Kernel_SVC, "tried to connect to unknown port: {}", port_name); + return ResultNotFound; + } + + // Reserve a handle for the port. + // NOTE: Nintendo really does write directly to the output handle here. + R_TRY(handle_table.Reserve(out)); + auto handle_guard = SCOPE_GUARD({ handle_table.Unreserve(*out); }); + + // Create a session. + KClientSession* session{}; + R_TRY(port->CreateSession(std::addressof(session))); + + kernel.RegisterNamedServiceHandler(port_name, &port->GetParent()->GetServerPort()); + + // Register the session in the table, close the extra reference. + handle_table.Register(*out, session); + session->Close(); + + // We succeeded. + handle_guard.Cancel(); + return ResultSuccess; +} + +Result CreatePort(Core::System& system, Handle* out_server, Handle* out_client, + int32_t max_sessions, bool is_light, uintptr_t name) { + UNIMPLEMENTED(); + R_THROW(ResultNotImplemented); +} + +Result ConnectToPort(Core::System& system, Handle* out_handle, Handle port) { + UNIMPLEMENTED(); + R_THROW(ResultNotImplemented); +} + +Result ManageNamedPort(Core::System& system, Handle* out_server_handle, uint64_t name, + int32_t max_sessions) { + UNIMPLEMENTED(); + R_THROW(ResultNotImplemented); +} + +Result ConnectToNamedPort64(Core::System& system, Handle* out_handle, uint64_t name) { + R_RETURN(ConnectToNamedPort(system, out_handle, name)); +} + +Result CreatePort64(Core::System& system, Handle* out_server_handle, Handle* out_client_handle, + int32_t max_sessions, bool is_light, uint64_t name) { + R_RETURN( + CreatePort(system, out_server_handle, out_client_handle, max_sessions, is_light, name)); +} + +Result ManageNamedPort64(Core::System& system, Handle* out_server_handle, uint64_t name, + int32_t max_sessions) { + R_RETURN(ManageNamedPort(system, out_server_handle, name, max_sessions)); +} + +Result ConnectToPort64(Core::System& system, Handle* out_handle, Handle port) { + R_RETURN(ConnectToPort(system, out_handle, port)); +} + +Result ConnectToNamedPort64From32(Core::System& system, Handle* out_handle, uint32_t name) { + R_RETURN(ConnectToNamedPort(system, out_handle, name)); +} + +Result CreatePort64From32(Core::System& system, Handle* out_server_handle, + Handle* out_client_handle, int32_t max_sessions, bool is_light, + uint32_t name) { + R_RETURN( + CreatePort(system, out_server_handle, out_client_handle, max_sessions, is_light, name)); +} + +Result ManageNamedPort64From32(Core::System& system, Handle* out_server_handle, uint32_t name, + int32_t max_sessions) { + R_RETURN(ManageNamedPort(system, out_server_handle, name, max_sessions)); +} + +Result ConnectToPort64From32(Core::System& system, Handle* out_handle, Handle port) { + R_RETURN(ConnectToPort(system, out_handle, port)); +} + +} // namespace Kernel::Svc |