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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/sockets/nsd.h"
#include "common/string_util.h"
namespace Service::Sockets {
constexpr Result ResultOverflow{ErrorModule::NSD, 6};
// This is nn::oe::ServerEnvironmentType
enum class ServerEnvironmentType : u8 {
Dd,
Lp,
Sd,
Sp,
Dp,
};
// This is nn::nsd::EnvironmentIdentifier
struct EnvironmentIdentifier {
std::array<u8, 8> identifier;
};
static_assert(sizeof(EnvironmentIdentifier) == 0x8);
NSD::NSD(Core::System& system_, const char* name) : ServiceFramework{system_, name} {
// clang-format off
static const FunctionInfo functions[] = {
{5, nullptr, "GetSettingUrl"},
{10, nullptr, "GetSettingName"},
{11, &NSD::GetEnvironmentIdentifier, "GetEnvironmentIdentifier"},
{12, nullptr, "GetDeviceId"},
{13, nullptr, "DeleteSettings"},
{14, nullptr, "ImportSettings"},
{15, &NSD::SetChangeEnvironmentIdentifierDisabled, "SetChangeEnvironmentIdentifierDisabled"},
{20, &NSD::Resolve, "Resolve"},
{21, &NSD::ResolveEx, "ResolveEx"},
{30, nullptr, "GetNasServiceSetting"},
{31, nullptr, "GetNasServiceSettingEx"},
{40, nullptr, "GetNasRequestFqdn"},
{41, nullptr, "GetNasRequestFqdnEx"},
{42, nullptr, "GetNasApiFqdn"},
{43, nullptr, "GetNasApiFqdnEx"},
{50, nullptr, "GetCurrentSetting"},
{51, nullptr, "WriteTestParameter"},
{52, nullptr, "ReadTestParameter"},
{60, nullptr, "ReadSaveDataFromFsForTest"},
{61, nullptr, "WriteSaveDataToFsForTest"},
{62, nullptr, "DeleteSaveDataOfFsForTest"},
{63, nullptr, "IsChangeEnvironmentIdentifierDisabled"},
{64, nullptr, "SetWithoutDomainExchangeFqdns"},
{100, &NSD::GetApplicationServerEnvironmentType, "GetApplicationServerEnvironmentType"},
{101, nullptr, "SetApplicationServerEnvironmentType"},
{102, nullptr, "DeleteApplicationServerEnvironmentType"},
};
// clang-format on
RegisterHandlers(functions);
}
static std::string ResolveImpl(const std::string& fqdn_in) {
// The real implementation makes various substitutions.
// For now we just return the string as-is, which is good enough when not
// connecting to real Nintendo servers.
LOG_WARNING(Service, "(STUBBED) called, fqdn_in={}", fqdn_in);
return fqdn_in;
}
static Result ResolveCommon(const std::string& fqdn_in, std::array<char, 0x100>& fqdn_out) {
const auto res = ResolveImpl(fqdn_in);
if (res.size() >= fqdn_out.size()) {
return ResultOverflow;
}
std::memcpy(fqdn_out.data(), res.c_str(), res.size() + 1);
return ResultSuccess;
}
void NSD::SetChangeEnvironmentIdentifierDisabled(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const bool disabled = rp.Pop<bool>();
LOG_WARNING(Service, "(STUBBED) called, disabled={}", disabled);
IPC::ResponseBuilder rb{ctx, 1};
rb.Push(ResultSuccess);
}
void NSD::Resolve(HLERequestContext& ctx) {
const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0));
std::array<char, 0x100> fqdn_out{};
const Result res = ResolveCommon(fqdn_in, fqdn_out);
ctx.WriteBuffer(fqdn_out);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res);
}
void NSD::ResolveEx(HLERequestContext& ctx) {
const std::string fqdn_in = Common::StringFromBuffer(ctx.ReadBuffer(0));
std::array<char, 0x100> fqdn_out;
const Result res = ResolveCommon(fqdn_in, fqdn_out);
if (res.IsError()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res);
return;
}
ctx.WriteBuffer(fqdn_out);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(ResultSuccess);
}
void NSD::GetEnvironmentIdentifier(HLERequestContext& ctx) {
constexpr EnvironmentIdentifier lp1 = {
.identifier = {'l', 'p', '1', '\0', '\0', '\0', '\0', '\0'}};
ctx.WriteBuffer(lp1);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void NSD::GetApplicationServerEnvironmentType(HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(ResultSuccess);
rb.Push(static_cast<u32>(ServerEnvironmentType::Lp));
}
NSD::~NSD() = default;
} // namespace Service::Sockets
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