diff options
Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 247 |
1 files changed, 188 insertions, 59 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index edf208eff..26650a513 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -368,7 +368,10 @@ static ResultCode GetThreadId(Core::System& system, u64* out_thread_id, Handle t // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Get the thread's id. *out_thread_id = thread->GetThreadID(); @@ -478,7 +481,10 @@ static ResultCode CancelSynchronization(Core::System& system, Handle thread_hand // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Cancel the thread's wait. thread->WaitCancel(); @@ -496,8 +502,15 @@ static ResultCode ArbitrateLock(Core::System& system, Handle thread_handle, VAdd thread_handle, address, tag); // Validate the input address. - R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); - R_UNLESS(Common::IsAligned(address, sizeof(u32)), Svc::ResultInvalidAddress); + if (Memory::IsKernelAddress(address)) { + LOG_ERROR(Kernel_SVC, "Attempting to arbitrate a lock on a kernel address (address={:08X})", + address); + return ResultInvalidCurrentMemory; + } + if (!Common::IsAligned(address, sizeof(u32))) { + LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address); + return ResultInvalidAddress; + } return system.Kernel().CurrentProcess()->WaitForAddress(thread_handle, address, tag); } @@ -512,8 +525,16 @@ static ResultCode ArbitrateUnlock(Core::System& system, VAddr address) { LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address); // Validate the input address. - R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); - R_UNLESS(Common::IsAligned(address, sizeof(u32)), Svc::ResultInvalidAddress); + if (Memory::IsKernelAddress(address)) { + LOG_ERROR(Kernel_SVC, + "Attempting to arbitrate an unlock on a kernel address (address={:08X})", + address); + return ResultInvalidCurrentMemory; + } + if (!Common::IsAligned(address, sizeof(u32))) { + LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address); + return ResultInvalidAddress; + } return system.Kernel().CurrentProcess()->SignalToAddress(address); } @@ -1025,37 +1046,47 @@ static ResultCode UnmapPhysicalMemory32(Core::System& system, u32 addr, u32 size return UnmapPhysicalMemory(system, addr, size); } -constexpr bool IsValidThreadActivity(Svc::ThreadActivity thread_activity) { - switch (thread_activity) { - case Svc::ThreadActivity::Runnable: - case Svc::ThreadActivity::Paused: - return true; - default: - return false; - } -} - /// Sets the thread activity static ResultCode SetThreadActivity(Core::System& system, Handle thread_handle, - Svc::ThreadActivity thread_activity) { + ThreadActivity thread_activity) { LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, activity=0x{:08X}", thread_handle, thread_activity); // Validate the activity. - R_UNLESS(IsValidThreadActivity(thread_activity), Svc::ResultInvalidEnumValue); + constexpr auto IsValidThreadActivity = [](ThreadActivity activity) { + return activity == ThreadActivity::Runnable || activity == ThreadActivity::Paused; + }; + if (!IsValidThreadActivity(thread_activity)) { + LOG_ERROR(Kernel_SVC, "Invalid thread activity value provided (activity={})", + thread_activity); + return ResultInvalidEnumValue; + } // Get the thread from its handle. auto& kernel = system.Kernel(); const auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Check that the activity is being set on a non-current thread for the current process. - R_UNLESS(thread->GetOwnerProcess() == kernel.CurrentProcess(), Svc::ResultInvalidHandle); - R_UNLESS(thread.get() != GetCurrentThreadPointer(kernel), Svc::ResultBusy); + if (thread->GetOwnerProcess() != kernel.CurrentProcess()) { + LOG_ERROR(Kernel_SVC, "Invalid owning process for the created thread."); + return ResultInvalidHandle; + } + if (thread.get() == GetCurrentThreadPointer(kernel)) { + LOG_ERROR(Kernel_SVC, "Thread is busy"); + return ResultBusy; + } // Set the activity. - R_TRY(thread->SetActivity(thread_activity)); + const auto set_result = thread->SetActivity(thread_activity); + if (set_result.IsError()) { + LOG_ERROR(Kernel_SVC, "Failed to set thread activity."); + return set_result; + } return RESULT_SUCCESS; } @@ -1074,16 +1105,29 @@ static ResultCode GetThreadContext(Core::System& system, VAddr out_context, Hand const auto* current_process = system.Kernel().CurrentProcess(); const std::shared_ptr<KThread> thread = current_process->GetHandleTable().Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={})", thread_handle); + return ResultInvalidHandle; + } // Require the handle be to a non-current thread in the current process. - R_UNLESS(thread->GetOwnerProcess() == current_process, Svc::ResultInvalidHandle); - R_UNLESS(thread.get() != system.Kernel().CurrentScheduler()->GetCurrentThread(), - Svc::ResultBusy); + if (thread->GetOwnerProcess() != current_process) { + LOG_ERROR(Kernel_SVC, "Thread owning process is not the current process."); + return ResultInvalidHandle; + } + if (thread.get() == system.Kernel().CurrentScheduler()->GetCurrentThread()) { + LOG_ERROR(Kernel_SVC, "Current thread is busy."); + return ResultBusy; + } // Get the thread context. std::vector<u8> context; - R_TRY(thread->GetThreadContext3(context)); + const auto context_result = thread->GetThreadContext3(context); + if (context_result.IsError()) { + LOG_ERROR(Kernel_SVC, "Unable to successfully retrieve thread context (result: {})", + context_result.raw); + return context_result; + } // Copy the thread context to user space. system.Memory().WriteBlock(out_context, context.data(), context.size()); @@ -1102,7 +1146,10 @@ static ResultCode GetThreadPriority(Core::System& system, u32* out_priority, Han // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", handle); + return ResultInvalidHandle; + } // Get the thread's priority. *out_priority = thread->GetPriority(); @@ -1118,13 +1165,18 @@ static ResultCode SetThreadPriority(Core::System& system, Handle handle, u32 pri LOG_TRACE(Kernel_SVC, "called"); // Validate the priority. - R_UNLESS(Svc::HighestThreadPriority <= priority && priority <= Svc::LowestThreadPriority, - Svc::ResultInvalidPriority); + if (HighestThreadPriority > priority || priority > LowestThreadPriority) { + LOG_ERROR(Kernel_SVC, "Invalid thread priority specified (priority={})", priority); + return ResultInvalidPriority; + } // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid handle provided (handle={:08X})", handle); + return ResultInvalidHandle; + } // Set the thread priority. thread->SetBasePriority(priority); @@ -1440,17 +1492,28 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e // Adjust core id, if it's the default magic. auto& kernel = system.Kernel(); auto& process = *kernel.CurrentProcess(); - if (core_id == Svc::IdealCoreUseProcessValue) { + if (core_id == IdealCoreUseProcessValue) { core_id = process.GetIdealCoreId(); } // Validate arguments. - R_UNLESS(IsValidCoreId(core_id), Svc::ResultInvalidCoreId); - R_UNLESS(((1ULL << core_id) & process.GetCoreMask()) != 0, Svc::ResultInvalidCoreId); + if (!IsValidCoreId(core_id)) { + LOG_ERROR(Kernel_SVC, "Invalid Core ID specified (id={})", core_id); + return ResultInvalidCoreId; + } + if (((1ULL << core_id) & process.GetCoreMask()) == 0) { + LOG_ERROR(Kernel_SVC, "Core ID doesn't fall within allowable cores (id={})", core_id); + return ResultInvalidCoreId; + } - R_UNLESS(Svc::HighestThreadPriority <= priority && priority <= Svc::LowestThreadPriority, - Svc::ResultInvalidPriority); - R_UNLESS(process.CheckThreadPriority(priority), Svc::ResultInvalidPriority); + if (HighestThreadPriority > priority || priority > LowestThreadPriority) { + LOG_ERROR(Kernel_SVC, "Invalid priority specified (priority={})", priority); + return ResultInvalidPriority; + } + if (!process.CheckThreadPriority(priority)) { + LOG_ERROR(Kernel_SVC, "Invalid allowable thread priority (priority={})", priority); + return ResultInvalidPriority; + } ASSERT(process.GetResourceLimit()->Reserve( LimitableResource::Threads, 1, system.CoreTiming().GetGlobalTimeNs().count() + 100000000)); @@ -1489,10 +1552,19 @@ static ResultCode StartThread(Core::System& system, Handle thread_handle) { // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle provided (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Try to start the thread. - R_TRY(thread->Run()); + const auto run_result = thread->Run(); + if (run_result.IsError()) { + LOG_ERROR(Kernel_SVC, + "Unable to successfuly start thread (thread handle={:08X}, result={})", + thread_handle, run_result.raw); + return run_result; + } return RESULT_SUCCESS; } @@ -1553,8 +1625,14 @@ static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr address, cv_key, tag, timeout_ns); // Validate input. - R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); - R_UNLESS(Common::IsAligned(address, sizeof(int32_t)), Svc::ResultInvalidAddress); + if (Memory::IsKernelAddress(address)) { + LOG_ERROR(Kernel_SVC, "Attempted to wait on kernel address (address={:08X})", address); + return ResultInvalidCurrentMemory; + } + if (!Common::IsAligned(address, sizeof(s32))) { + LOG_ERROR(Kernel_SVC, "Address must be 4 byte aligned (address={:08X})", address); + return ResultInvalidAddress; + } // Convert timeout from nanoseconds to ticks. s64 timeout{}; @@ -1629,9 +1707,18 @@ static ResultCode WaitForAddress(Core::System& system, VAddr address, Svc::Arbit address, arb_type, value, timeout_ns); // Validate input. - R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); - R_UNLESS(Common::IsAligned(address, sizeof(int32_t)), Svc::ResultInvalidAddress); - R_UNLESS(IsValidArbitrationType(arb_type), Svc::ResultInvalidEnumValue); + if (Memory::IsKernelAddress(address)) { + LOG_ERROR(Kernel_SVC, "Attempting to wait on kernel address (address={:08X})", address); + return ResultInvalidCurrentMemory; + } + if (!Common::IsAligned(address, sizeof(s32))) { + LOG_ERROR(Kernel_SVC, "Wait address must be 4 byte aligned (address={:08X})", address); + return ResultInvalidAddress; + } + if (!IsValidArbitrationType(arb_type)) { + LOG_ERROR(Kernel_SVC, "Invalid arbitration type specified (type={})", arb_type); + return ResultInvalidEnumValue; + } // Convert timeout from nanoseconds to ticks. s64 timeout{}; @@ -1665,9 +1752,18 @@ static ResultCode SignalToAddress(Core::System& system, VAddr address, Svc::Sign address, signal_type, value, count); // Validate input. - R_UNLESS(!Memory::IsKernelAddress(address), Svc::ResultInvalidCurrentMemory); - R_UNLESS(Common::IsAligned(address, sizeof(s32)), Svc::ResultInvalidAddress); - R_UNLESS(IsValidSignalType(signal_type), Svc::ResultInvalidEnumValue); + if (Memory::IsKernelAddress(address)) { + LOG_ERROR(Kernel_SVC, "Attempting to signal to a kernel address (address={:08X})", address); + return ResultInvalidCurrentMemory; + } + if (!Common::IsAligned(address, sizeof(s32))) { + LOG_ERROR(Kernel_SVC, "Signaled address must be 4 byte aligned (address={:08X})", address); + return ResultInvalidAddress; + } + if (!IsValidSignalType(signal_type)) { + LOG_ERROR(Kernel_SVC, "Invalid signal type specified (type={})", signal_type); + return ResultInvalidEnumValue; + } return system.Kernel().CurrentProcess()->SignalAddressArbiter(address, signal_type, value, count); @@ -1815,10 +1911,17 @@ static ResultCode GetThreadCoreMask(Core::System& system, Handle thread_handle, // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle specified (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Get the core mask. - R_TRY(thread->GetCoreMask(out_core_id, out_affinity_mask)); + const auto result = thread->GetCoreMask(out_core_id, out_affinity_mask); + if (result.IsError()) { + LOG_ERROR(Kernel_SVC, "Unable to successfully retrieve core mask (result={})", result.raw); + return result; + } return RESULT_SUCCESS; } @@ -1846,26 +1949,46 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle, } else { // Validate the affinity mask. const u64 process_core_mask = current_process.GetCoreMask(); - R_UNLESS((affinity_mask | process_core_mask) == process_core_mask, - Svc::ResultInvalidCoreId); - R_UNLESS(affinity_mask != 0, Svc::ResultInvalidCombination); + if ((affinity_mask | process_core_mask) != process_core_mask) { + LOG_ERROR(Kernel_SVC, + "Affinity mask does match the process core mask (affinity mask={:016X}, core " + "mask={:016X})", + affinity_mask, process_core_mask); + return ResultInvalidCoreId; + } + if (affinity_mask == 0) { + LOG_ERROR(Kernel_SVC, "Affinity mask is zero."); + return ResultInvalidCombination; + } // Validate the core id. if (IsValidCoreId(core_id)) { - R_UNLESS(((1ULL << core_id) & affinity_mask) != 0, Svc::ResultInvalidCombination); + if (((1ULL << core_id) & affinity_mask) == 0) { + LOG_ERROR(Kernel_SVC, "Invalid core ID (ID={})", core_id); + return ResultInvalidCombination; + } } else { - R_UNLESS(core_id == Svc::IdealCoreNoUpdate || core_id == Svc::IdealCoreDontCare, - Svc::ResultInvalidCoreId); + if (core_id != IdealCoreNoUpdate && core_id != IdealCoreDontCare) { + LOG_ERROR(Kernel_SVC, "Invalid core ID (ID={})", core_id); + return ResultInvalidCoreId; + } } } // Get the thread from its handle. const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); const std::shared_ptr<KThread> thread = handle_table.Get<KThread>(thread_handle); - R_UNLESS(thread, Svc::ResultInvalidHandle); + if (!thread) { + LOG_ERROR(Kernel_SVC, "Invalid thread handle (handle={:08X})", thread_handle); + return ResultInvalidHandle; + } // Set the core mask. - R_TRY(thread->SetCoreMask(core_id, affinity_mask)); + const auto set_result = thread->SetCoreMask(core_id, affinity_mask); + if (set_result.IsError()) { + LOG_ERROR(Kernel_SVC, "Unable to successfully set core mask (result={})", set_result.raw); + return set_result; + } return RESULT_SUCCESS; } @@ -1884,7 +2007,10 @@ static ResultCode SignalEvent(Core::System& system, Handle event_handle) { // Get the writable event. auto writable_event = handle_table.Get<KWritableEvent>(event_handle); - R_UNLESS(writable_event, Svc::ResultInvalidHandle); + if (!writable_event) { + LOG_ERROR(Kernel_SVC, "Invalid event handle provided (handle={:08X})", event_handle); + return ResultInvalidHandle; + } return writable_event->Signal(); } @@ -1933,7 +2059,10 @@ static ResultCode CreateEvent(Core::System& system, Handle* out_write, Handle* o // Create a new event. const auto event = KEvent::Create(kernel, "CreateEvent"); - R_UNLESS(event != nullptr, Svc::ResultOutOfResource); + if (!event) { + LOG_ERROR(Kernel_SVC, "Unable to create new events. Event creation limit reached."); + return ResultOutOfResource; + } // Initialize the event. event->Initialize(); |