mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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112 lines
4 KiB
C++
112 lines
4 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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bool InitializeImpl() {
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/* Initialize implementation api. */
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impl::Initialize();
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return true;
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}
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void EnsureInitialized() {
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AMS_FUNCTION_LOCAL_STATIC(bool, s_initialized, InitializeImpl());
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AMS_ABORT_UNLESS(s_initialized);
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}
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Result WaitAvailableKeySlotAndExecute(auto f) {
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os::SystemEvent *event = nullptr;
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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 (event == nullptr) {
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event = impl::GetAesKeySlotAvailableEvent();
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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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}
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Result AllocateAesKeySlot(s32 *out_slot) {
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EnsureInitialized();
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R_RETURN(WaitAvailableKeySlotAndExecute([&]() -> Result {
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R_RETURN(impl::AllocateAesKeySlot(out_slot));
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}));
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}
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Result DeallocateAesKeySlot(s32 slot) {
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EnsureInitialized();
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R_RETURN(impl::DeallocateAesKeySlot(slot));
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}
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Result GenerateAesKek(AccessKey *out_access_key, const void *key_source, size_t key_source_size, s32 generation, u32 option) {
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EnsureInitialized();
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/* Check key size (assumed valid). */
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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AMS_UNUSED(key_source_size);
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/* AccessKey *out_access_key, const KeySource &key_source, u32 generation, u32 option */
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R_RETURN(impl::GenerateAesKek(out_access_key, *static_cast<const KeySource *>(key_source), generation, option));
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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(impl::LoadAesKey(slot, access_key, *static_cast<const KeySource *>(key_source)));
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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 >= sizeof(AesKey));
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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(impl::GenerateAesKey(static_cast<AesKey *>(dst), access_key, *static_cast<const KeySource *>(key_source)));
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}));
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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 >= sizeof(IvCtr));
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AMS_UNUSED(iv_size);
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AMS_ASSERT(dst_size >= src_size);
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R_RETURN(impl::ComputeCtr(dst, dst_size, slot, src, src_size, *static_cast<const IvCtr *>(iv)));
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}
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Result LoadPreparedAesKey(s32 slot, const AccessKey &access_key) {
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R_RETURN(impl::LoadPreparedAesKey(slot, access_key));
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}
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Result PrepareCommonEsTitleKey(AccessKey *out, const void *key_source, const size_t key_source_size, int generation) {
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AMS_ASSERT(key_source_size == sizeof(KeySource));
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R_RETURN(impl::PrepareCommonEsTitleKey(out, *static_cast<const KeySource *>(key_source), generation));
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}
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}
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