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Merge pull request #2787 from yuriks/hle-ipc-tests 

Kernel/IPC: Add tests for HLERequestContext buffer translation
This commit is contained in:
Yuri Kunde Schlesner 2017-06-19 21:06:31 -07:00 committed by GitHub
parent d0888f8548 60a882cd50
commit ecd332b1b7
5 changed files with 206 additions and 7 deletions
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5
src/core/hle/kernel/hle_ipc.cpp
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@ -23,6 +23,11 @@ void SessionRequestHandler::ClientDisconnected(SharedPtr<ServerSession> server_s
boost::range::remove_erase(connected_sessions, server_session);
}
HLERequestContext::HLERequestContext(SharedPtr<ServerSession> session)
: session(std::move(session)) {
cmd_buf[0] = 0;
}
HLERequestContext::~HLERequestContext() = default;
SharedPtr<Object> HLERequestContext::GetIncomingHandle(u32 id_from_cmdbuf) const {

7
src/core/hle/kernel/hle_ipc.h
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@ -84,6 +84,7 @@ protected:
*/
class HLERequestContext {
public:
HLERequestContext(SharedPtr<ServerSession> session);
~HLERequestContext();
/// Returns a pointer to the IPC command buffer for this request.
@ -118,14 +119,14 @@ public:
*/
void ClearIncomingObjects();
private:
friend class Service::ServiceFrameworkBase;
/// Populates this context with data from the requesting process/thread.
ResultCode PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf, Process& src_process,
HandleTable& src_table);
/// Writes data from this context back to the requesting process/thread.
ResultCode WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process,
HandleTable& dst_table) const;
private:
std::array<u32, IPC::COMMAND_BUFFER_LENGTH> cmd_buf;
SharedPtr<ServerSession> session;
// TODO(yuriks): Check common usage of this and optimize size accordingly

3
src/core/hle/service/service.cpp
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@ -173,8 +173,7 @@ void ServiceFrameworkBase::HandleSyncRequest(SharedPtr<ServerSession> server_ses
// TODO(yuriks): The kernel should be the one handling this as part of translation after
// everything else is migrated
Kernel::HLERequestContext context;
context.session = std::move(server_session);
Kernel::HLERequestContext context(std::move(server_session));
context.PopulateFromIncomingCommandBuffer(cmd_buf, *Kernel::g_current_process,
Kernel::g_handle_table);

5
src/tests/CMakeLists.txt
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@ -1,8 +1,9 @@
set(SRCS
glad.cpp
tests.cpp
common/param_package.cpp
core/file_sys/path_parser.cpp
core/hle/kernel/hle_ipc.cpp
glad.cpp
tests.cpp
)
set(HEADERS

193
src/tests/core/hle/kernel/hle_ipc.cpp Normal file
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@ -0,0 +1,193 @@
// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <catch.hpp>
#include "core/hle/ipc.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/server_session.h"
namespace Kernel {
static SharedPtr<Object> MakeObject() {
return Event::Create(ResetType::OneShot);
}
TEST_CASE("HLERequestContext::PopoulateFromIncomingCommandBuffer", "[core][kernel]") {
auto session = std::get<SharedPtr<ServerSession>>(ServerSession::CreateSessionPair());
HLERequestContext context(std::move(session));
auto process = Process::Create(CodeSet::Create("", 0));
HandleTable handle_table;
SECTION("works with empty cmdbuf") {
const u32_le input[]{
IPC::MakeHeader(0x1234, 0, 0),
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
REQUIRE(context.CommandBuffer()[0] == 0x12340000);
}
SECTION("translates regular params") {
const u32_le input[]{
IPC::MakeHeader(0, 3, 0), 0x12345678, 0x21122112, 0xAABBCCDD,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
auto* output = context.CommandBuffer();
REQUIRE(output[1] == 0x12345678);
REQUIRE(output[2] == 0x21122112);
REQUIRE(output[3] == 0xAABBCCDD);
}
SECTION("translates move handles") {
auto a = MakeObject();
Handle a_handle = handle_table.Create(a).Unwrap();
const u32_le input[]{
IPC::MakeHeader(0, 0, 2), IPC::MoveHandleDesc(1), a_handle,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
auto* output = context.CommandBuffer();
REQUIRE(context.GetIncomingHandle(output[2]) == a);
REQUIRE(handle_table.GetGeneric(a_handle) == nullptr);
}
SECTION("translates copy handles") {
auto a = MakeObject();
Handle a_handle = handle_table.Create(a).Unwrap();
const u32_le input[]{
IPC::MakeHeader(0, 0, 2), IPC::CopyHandleDesc(1), a_handle,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
auto* output = context.CommandBuffer();
REQUIRE(context.GetIncomingHandle(output[2]) == a);
REQUIRE(handle_table.GetGeneric(a_handle) == a);
}
SECTION("translates multi-handle descriptors") {
auto a = MakeObject();
auto b = MakeObject();
auto c = MakeObject();
const u32_le input[]{
IPC::MakeHeader(0, 0, 5), IPC::MoveHandleDesc(2),
handle_table.Create(a).Unwrap(), handle_table.Create(b).Unwrap(),
IPC::MoveHandleDesc(1), handle_table.Create(c).Unwrap(),
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
auto* output = context.CommandBuffer();
REQUIRE(context.GetIncomingHandle(output[2]) == a);
REQUIRE(context.GetIncomingHandle(output[3]) == b);
REQUIRE(context.GetIncomingHandle(output[5]) == c);
}
SECTION("translates CallingPid descriptors") {
const u32_le input[]{
IPC::MakeHeader(0, 0, 2), IPC::CallingPidDesc(), 0x98989898,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
REQUIRE(context.CommandBuffer()[2] == process->process_id);
}
SECTION("translates mixed params") {
auto a = MakeObject();
const u32_le input[]{
IPC::MakeHeader(0, 2, 4),
0x12345678,
0xABCDEF00,
IPC::MoveHandleDesc(1),
handle_table.Create(a).Unwrap(),
IPC::CallingPidDesc(),
0,
};
context.PopulateFromIncomingCommandBuffer(input, *process, handle_table);
auto* output = context.CommandBuffer();
REQUIRE(output[1] == 0x12345678);
REQUIRE(output[2] == 0xABCDEF00);
REQUIRE(context.GetIncomingHandle(output[4]) == a);
REQUIRE(output[6] == process->process_id);
}
}
TEST_CASE("HLERequestContext::WriteToOutgoingCommandBuffer", "[core][kernel]") {
auto session = std::get<SharedPtr<ServerSession>>(ServerSession::CreateSessionPair());
HLERequestContext context(std::move(session));
auto process = Process::Create(CodeSet::Create("", 0));
HandleTable handle_table;
auto* input = context.CommandBuffer();
u32_le output[IPC::COMMAND_BUFFER_LENGTH];
SECTION("works with empty cmdbuf") {
input[0] = IPC::MakeHeader(0x1234, 0, 0);
context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
REQUIRE(output[0] == 0x12340000);
}
SECTION("translates regular params") {
input[0] = IPC::MakeHeader(0, 3, 0);
input[1] = 0x12345678;
input[2] = 0x21122112;
input[3] = 0xAABBCCDD;
context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
REQUIRE(output[1] == 0x12345678);
REQUIRE(output[2] == 0x21122112);
REQUIRE(output[3] == 0xAABBCCDD);
}
SECTION("translates move/copy handles") {
auto a = MakeObject();
auto b = MakeObject();
input[0] = IPC::MakeHeader(0, 0, 4);
input[1] = IPC::MoveHandleDesc(1);
input[2] = context.AddOutgoingHandle(a);
input[3] = IPC::CopyHandleDesc(1);
input[4] = context.AddOutgoingHandle(b);
context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
REQUIRE(handle_table.GetGeneric(output[2]) == a);
REQUIRE(handle_table.GetGeneric(output[4]) == b);
}
SECTION("translates multi-handle descriptors") {
auto a = MakeObject();
auto b = MakeObject();
auto c = MakeObject();
input[0] = IPC::MakeHeader(0, 0, 5);
input[1] = IPC::MoveHandleDesc(2);
input[2] = context.AddOutgoingHandle(a);
input[3] = context.AddOutgoingHandle(b);
input[4] = IPC::CopyHandleDesc(1);
input[5] = context.AddOutgoingHandle(c);
context.WriteToOutgoingCommandBuffer(output, *process, handle_table);
REQUIRE(handle_table.GetGeneric(output[2]) == a);
REQUIRE(handle_table.GetGeneric(output[3]) == b);
REQUIRE(handle_table.GetGeneric(output[5]) == c);
}
}
} // namespace Kernel