Merge pull request #5920 from bunnei/am-ldn-fix

Fix LDN Initialization return code & resulting AM overflow
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bunnei 2021-02-14 02:46:01 -08:00 committed by GitHub
commit b0a3915351
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4 changed files with 53 additions and 12 deletions

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@ -400,6 +400,7 @@ add_library(core STATIC
hle/service/hid/controllers/xpad.h
hle/service/lbl/lbl.cpp
hle/service/lbl/lbl.h
hle/service/ldn/errors.h
hle/service/ldn/ldn.cpp
hle/service/ldn/ldn.h
hle/service/ldr/ldr.cpp

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@ -1047,20 +1047,21 @@ void IStorageAccessor::Write(Kernel::HLERequestContext& ctx) {
const u64 offset{rp.Pop<u64>()};
const std::vector<u8> data{ctx.ReadBuffer()};
const std::size_t size{std::min(data.size(), backing.GetSize() - offset)};
LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, data.size());
LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size);
if (data.size() > backing.GetSize() - offset) {
if (offset > backing.GetSize()) {
LOG_ERROR(Service_AM,
"offset is out of bounds, backing_buffer_sz={}, data_size={}, offset={}",
backing.GetSize(), data.size(), offset);
backing.GetSize(), size, offset);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERR_SIZE_OUT_OF_BOUNDS);
return;
}
std::memcpy(backing.GetData().data() + offset, data.data(), data.size());
std::memcpy(backing.GetData().data() + offset, data.data(), size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
@ -1070,11 +1071,11 @@ void IStorageAccessor::Read(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 offset{rp.Pop<u64>()};
const std::size_t size{ctx.GetWriteBufferSize()};
const std::size_t size{std::min(ctx.GetWriteBufferSize(), backing.GetSize() - offset)};
LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size);
if (size > backing.GetSize() - offset) {
if (offset > backing.GetSize()) {
LOG_ERROR(Service_AM, "offset is out of bounds, backing_buffer_sz={}, size={}, offset={}",
backing.GetSize(), size, offset);

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@ -0,0 +1,13 @@
// Copyright 2021 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "core/hle/result.h"
namespace Service::LDN {
constexpr ResultCode ERROR_DISABLED{ErrorModule::LDN, 22};
} // namespace Service::LDN

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@ -6,6 +6,7 @@
#include "core/hle/ipc_helpers.h"
#include "core/hle/result.h"
#include "core/hle/service/ldn/errors.h"
#include "core/hle/service/ldn/ldn.h"
#include "core/hle/service/sm/sm.h"
@ -103,7 +104,7 @@ public:
: ServiceFramework{system_, "IUserLocalCommunicationService"} {
// clang-format off
static const FunctionInfo functions[] = {
{0, nullptr, "GetState"},
{0, &IUserLocalCommunicationService::GetState, "GetState"},
{1, nullptr, "GetNetworkInfo"},
{2, nullptr, "GetIpv4Address"},
{3, nullptr, "GetDisconnectReason"},
@ -138,13 +139,38 @@ public:
RegisterHandlers(functions);
}
void Initialize2(Kernel::HLERequestContext& ctx) {
void GetState(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_LDN, "(STUBBED) called");
// Result success seem make this services start network and continue.
// If we just pass result error then it will stop and maybe try again and again.
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_UNKNOWN);
IPC::ResponseBuilder rb{ctx, 3};
// Indicate a network error, as we do not actually emulate LDN
rb.Push(static_cast<u32>(State::Error));
rb.Push(RESULT_SUCCESS);
}
void Initialize2(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_LDN, "called");
is_initialized = true;
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
private:
enum class State {
None,
Initialized,
AccessPointOpened,
AccessPointCreated,
StationOpened,
StationConnected,
Error,
};
bool is_initialized{};
};
class LDNS final : public ServiceFramework<LDNS> {