mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-27 22:32:15 +00:00
282 lines
9.6 KiB
C++
282 lines
9.6 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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namespace ams::spl {
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namespace {
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enum class InitializeMode {
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None,
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General,
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Crypto,
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Ssl,
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Es,
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Fs,
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Manu
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};
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os::Mutex g_mutex(false);
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s32 g_initialize_count = 0;
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InitializeMode g_initialize_mode = InitializeMode::None;
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Result AllocateAesKeySlotImpl(s32 *out) {
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return serviceDispatchOut(splCryptoGetServiceSession(), 21, *out);
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}
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Result DeallocateAesKeySlotImpl(s32 slot) {
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return serviceDispatchIn(splCryptoGetServiceSession(), 22, slot);
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}
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Result GetAesKeySlotAvailableEventImpl(Handle *out) {
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return serviceDispatch(splCryptoGetServiceSession(), 23,
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.out_handle_attrs = { SfOutHandleAttr_HipcCopy },
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.out_handles = out,
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);
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}
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void GetAesKeySlotAvailableEvent(os::SystemEvent *out) {
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/* Get libnx event. */
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Handle handle = svc::InvalidHandle;
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R_ABORT_UNLESS(GetAesKeySlotAvailableEventImpl(std::addressof(handle)));
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/* Attach to event. */
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out->AttachReadableHandle(handle, true, os::EventClearMode_ManualClear);
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}
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template<typename F>
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Result WaitAvailableKeySlotAndExecute(F f) {
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os::SystemEvent event;
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auto is_event_initialized = false;
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while (true) {
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R_TRY_CATCH(static_cast<::ams::Result>(f())) {
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R_CATCH(spl::ResultOutOfKeyslots) {
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if (!is_event_initialized) {
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GetAesKeySlotAvailableEvent(std::addressof(event));
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is_event_initialized = true;
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}
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event.Wait();
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continue;
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}
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} R_END_TRY_CATCH;
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return ResultSuccess();
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}
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}
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template<typename F>
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void Initialize(InitializeMode mode, F f) {
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std::scoped_lock lk(g_mutex);
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AMS_ASSERT(g_initialize_count >= 0);
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AMS_ABORT_UNLESS(mode != InitializeMode::None);
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if (g_initialize_count == 0) {
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AMS_ABORT_UNLESS(g_initialize_mode == InitializeMode::None);
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f();
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g_initialize_mode = mode;
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} else {
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AMS_ABORT_UNLESS(g_initialize_mode == mode);
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}
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++g_initialize_count;
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}
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}
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void Initialize() {
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return Initialize(InitializeMode::General, [&]() {
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R_ABORT_UNLESS(splInitialize());
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});
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}
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void InitializeForCrypto() {
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return Initialize(InitializeMode::Crypto, [&]() {
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R_ABORT_UNLESS(splCryptoInitialize());
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});
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}
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void InitializeForSsl() {
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return Initialize(InitializeMode::Ssl, [&]() {
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R_ABORT_UNLESS(splSslInitialize());
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});
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}
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void InitializeForEs() {
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return Initialize(InitializeMode::Es, [&]() {
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R_ABORT_UNLESS(splEsInitialize());
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});
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}
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void InitializeForFs() {
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return Initialize(InitializeMode::Fs, [&]() {
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R_ABORT_UNLESS(splFsInitialize());
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});
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}
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void InitializeForManu() {
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return Initialize(InitializeMode::Manu, [&]() {
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R_ABORT_UNLESS(splManuInitialize());
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});
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}
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void Finalize() {
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std::scoped_lock lk(g_mutex);
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AMS_ASSERT(g_initialize_count > 0);
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AMS_ABORT_UNLESS(g_initialize_mode != InitializeMode::None);
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if ((--g_initialize_count) == 0) {
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switch (g_initialize_mode) {
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case InitializeMode::General: splExit(); break;
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case InitializeMode::Crypto: splCryptoExit(); break;
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case InitializeMode::Ssl: splSslExit(); break;
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case InitializeMode::Es: splEsExit(); break;
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case InitializeMode::Fs: splFsExit(); break;
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case InitializeMode::Manu: splManuExit(); break;
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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g_initialize_mode = InitializeMode::None;
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}
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}
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Result AllocateAesKeySlot(s32 *out_slot) {
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return WaitAvailableKeySlotAndExecute([&]() -> Result {
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return AllocateAesKeySlotImpl(out_slot);
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});
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}
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Result DeallocateAesKeySlot(s32 slot) {
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return DeallocateAesKeySlotImpl(slot);
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}
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Result GenerateAesKek(AccessKey *access_key, const void *key_source, size_t key_source_size, s32 generation, u32 option) {
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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return splCryptoGenerateAesKek(key_source, generation, option, static_cast<void *>(access_key));
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}
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Result LoadAesKey(s32 slot, const AccessKey &access_key, const void *key_source, size_t key_source_size) {
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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return splCryptoLoadAesKey(std::addressof(access_key), key_source, static_cast<u32>(slot));
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}
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Result GenerateAesKey(void *dst, size_t dst_size, const AccessKey &access_key, const void *key_source, size_t key_source_size) {
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AMS_ASSERT(dst_size >= crypto::AesEncryptor128::KeySize);
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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return WaitAvailableKeySlotAndExecute([&]() -> Result {
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return splCryptoGenerateAesKey(std::addressof(access_key), key_source, dst);
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});
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}
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Result GenerateSpecificAesKey(void *dst, size_t dst_size, const void *key_source, size_t key_source_size, s32 generation, u32 option) {
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AMS_ASSERT(dst_size >= crypto::AesEncryptor128::KeySize);
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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return splFsGenerateSpecificAesKey(key_source, static_cast<u32>(generation), option, dst);
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}
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Result ComputeCtr(void *dst, size_t dst_size, s32 slot, const void *src, size_t src_size, const void *iv, size_t iv_size) {
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AMS_ASSERT(iv_size >= 0x10);
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AMS_ASSERT(dst_size >= src_size);
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return splCryptoCryptAesCtr(src, dst, src_size, static_cast<s32>(slot), iv);
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}
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Result DecryptAesKey(void *dst, size_t dst_size, const void *key_source, size_t key_source_size, s32 generation, u32 option) {
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AMS_ASSERT(dst_size >= crypto::AesEncryptor128::KeySize);
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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return WaitAvailableKeySlotAndExecute([&]() -> Result {
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return splCryptoDecryptAesKey(key_source, static_cast<u32>(generation), option, dst);
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});
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}
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Result GetConfig(u64 *out, ConfigItem item) {
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return splGetConfig(static_cast<::SplConfigItem>(item), out);
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}
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bool IsDevelopment() {
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bool is_dev;
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R_ABORT_UNLESS(splIsDevelopment(std::addressof(is_dev)));
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return is_dev;
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}
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MemoryArrangement GetMemoryArrangement() {
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u64 mode = 0;
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R_ABORT_UNLESS(spl::GetConfig(std::addressof(mode), spl::ConfigItem::MemoryMode));
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switch (mode & 0x3F) {
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case 2:
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return MemoryArrangement_StandardForAppletDev;
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case 3:
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return MemoryArrangement_StandardForSystemDev;
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case 17:
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return MemoryArrangement_Expanded;
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case 18:
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return MemoryArrangement_ExpandedForAppletDev;
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default:
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return MemoryArrangement_Standard;
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}
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}
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Result SetBootReason(BootReasonValue boot_reason) {
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static_assert(sizeof(boot_reason) == sizeof(u32));
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u32 v;
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std::memcpy(std::addressof(v), std::addressof(boot_reason), sizeof(v));
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return splSetBootReason(v);
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}
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Result GetBootReason(BootReasonValue *out) {
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static_assert(sizeof(*out) == sizeof(u32));
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u32 v;
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R_TRY(splGetBootReason(std::addressof(v)));
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std::memcpy(out, std::addressof(v), sizeof(*out));
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return ResultSuccess();
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}
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SocType GetSocType() {
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switch (GetHardwareType()) {
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case HardwareType::Icosa:
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case HardwareType::Copper:
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return SocType_Erista;
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case HardwareType::Hoag:
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case HardwareType::Iowa:
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case HardwareType::_Five_:
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return SocType_Mariko;
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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Result GetPackage2Hash(void *dst, size_t dst_size) {
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AMS_ASSERT(dst_size >= crypto::Sha256Generator::HashSize);
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return splFsGetPackage2Hash(dst);
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}
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Result GenerateRandomBytes(void *out, size_t buffer_size) {
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return splGetRandomBytes(out, buffer_size);
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}
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Result LoadPreparedAesKey(s32 slot, const AccessKey &access_key) {
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if (g_initialize_mode == InitializeMode::Fs) {
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return splFsLoadTitlekey(std::addressof(access_key), static_cast<u32>(slot));
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} else {
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/* TODO: libnx binding not available. */
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/* return splEsLoadTitlekey(std::addressof(access_key), static_cast<u32>(slot)); */
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AMS_ABORT_UNLESS(false);
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}
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}
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}
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