Merge pull request #2796 from yuriks/hle-null-handles
Kernel/IPC: Support translation of null handles
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commit
8223d18088
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@ -67,10 +67,13 @@ ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(const u32_le* sr
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ASSERT(i + num_handles <= command_size); // TODO(yuriks): Return error
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for (u32 j = 0; j < num_handles; ++j) {
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Handle handle = src_cmdbuf[i];
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SharedPtr<Object> object = src_table.GetGeneric(handle);
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ASSERT(object != nullptr); // TODO(yuriks): Return error
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if (descriptor == IPC::DescriptorType::MoveHandle) {
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src_table.Close(handle);
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SharedPtr<Object> object = nullptr;
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if (handle != 0) {
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object = src_table.GetGeneric(handle);
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ASSERT(object != nullptr); // TODO(yuriks): Return error
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if (descriptor == IPC::DescriptorType::MoveHandle) {
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src_table.Close(handle);
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}
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}
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cmd_buf[i++] = AddOutgoingHandle(std::move(object));
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@ -112,9 +115,11 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, P
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ASSERT(i + num_handles <= command_size);
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for (u32 j = 0; j < num_handles; ++j) {
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SharedPtr<Object> object = GetIncomingHandle(cmd_buf[i]);
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// TODO(yuriks): Figure out the proper error handling for if this fails
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Handle handle = dst_table.Create(object).Unwrap();
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Handle handle = 0;
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if (object != nullptr) {
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// TODO(yuriks): Figure out the proper error handling for if this fails
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handle = dst_table.Create(object).Unwrap();
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}
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dst_cmdbuf[i++] = handle;
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}
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break;
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@ -18,7 +18,7 @@ static SharedPtr<Object> MakeObject() {
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return Event::Create(ResetType::OneShot);
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}
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TEST_CASE("HLERequestContext::PopoulateFromIncomingCommandBuffer", "[core][kernel]") {
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TEST_CASE("HLERequestContext::PopulateFromIncomingCommandBuffer", "[core][kernel]") {
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auto session = std::get<SharedPtr<ServerSession>>(ServerSession::CreateSessionPair());
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HLERequestContext context(std::move(session));
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@ -94,6 +94,18 @@ TEST_CASE("HLERequestContext::PopoulateFromIncomingCommandBuffer", "[core][kerne
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REQUIRE(context.GetIncomingHandle(output[5]) == c);
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}
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SECTION("translates null handles") {
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const u32_le input[]{
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IPC::MakeHeader(0, 0, 2), IPC::MoveHandleDesc(1), 0,
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};
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auto result = context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
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REQUIRE(result == RESULT_SUCCESS);
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auto* output = context.CommandBuffer();
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REQUIRE(context.GetIncomingHandle(output[2]) == nullptr);
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}
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SECTION("translates CallingPid descriptors") {
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const u32_le input[]{
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IPC::MakeHeader(0, 0, 2), IPC::CallingPidDesc(), 0x98989898,
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@ -171,6 +183,17 @@ TEST_CASE("HLERequestContext::WriteToOutgoingCommandBuffer", "[core][kernel]") {
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REQUIRE(handle_table.GetGeneric(output[4]) == b);
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}
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SECTION("translates null handles") {
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input[0] = IPC::MakeHeader(0, 0, 2);
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input[1] = IPC::MoveHandleDesc(1);
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input[2] = context.AddOutgoingHandle(nullptr);
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auto result = context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
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REQUIRE(result == RESULT_SUCCESS);
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REQUIRE(output[2] == 0);
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}
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SECTION("translates multi-handle descriptors") {
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auto a = MakeObject();
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auto b = MakeObject();
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