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			299 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			299 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 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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        constinit os::SdkMutex g_mutex;
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        constinit s32 g_initialize_count = 0;
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        constinit InitializeMode g_initialize_mode = InitializeMode::None;
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        Result AllocateAesKeySlotImpl(s32 *out) {
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            R_RETURN(serviceDispatchOut(splCryptoGetServiceSession(), 21, *out));
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        }
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        Result DeallocateAesKeySlotImpl(s32 slot) {
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            R_RETURN(serviceDispatchIn(splCryptoGetServiceSession(), 22, slot));
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        }
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        Result GetAesKeySlotAvailableEventImpl(os::NativeHandle *out) {
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            R_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 event handle. */
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            os::NativeHandle handle;
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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::ResultNoAvailableKeySlot) {
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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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                R_SUCCEED();
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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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        R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
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            R_RETURN(AllocateAesKeySlotImpl(out_slot));
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        }));
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    }
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    Result DeallocateAesKeySlot(s32 slot) {
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        R_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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        AMS_UNUSED(key_source_size);
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        R_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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        AMS_UNUSED(key_source_size);
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        R_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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        AMS_UNUSED(dst_size, key_source_size);
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        R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
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            R_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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        AMS_UNUSED(dst_size, key_source_size);
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        R_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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        AMS_UNUSED(dst_size, iv_size);
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        R_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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        AMS_UNUSED(dst_size, key_source_size);
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        R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
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            R_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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        R_RETURN(splGetConfig(static_cast<::SplConfigItem>(item), out));
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    }
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    Result SetConfig(ConfigItem item, u64 v) {
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        R_RETURN(splSetConfig(static_cast<::SplConfigItem>(item), v));
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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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        R_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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        R_SUCCEED();
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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::Aula:
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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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        AMS_UNUSED(dst_size);
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        R_RETURN(splFsGetPackage2Hash(dst));
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    }
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    Result GenerateRandomBytes(void *out, size_t buffer_size) {
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        R_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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            R_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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            /* R_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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