mirror of
https://github.com/Atmosphere-NX/Atmosphere
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496adb0018
* Work around Clang's incomplete C++20 support for omitting typename * vapours: fix Clang error about missing return in constexpr function * stratosphere: fix call to non-constexpr strlen in constexpr function strlen being constexpr is a non-compliant GCC extension; Clang explicitly rejects it: https://reviews.llvm.org/D23692 * stratosphere: add a bunch of missing override specifiers * stratosphere: work around Clang consteval bug Minimal example: https://godbolt.org/z/MoM64v93M The issue seems to be that Clang does not consider f(x) to be a constant expression if x comes from a template argument that isn't a non-type auto template argument (???) We can work around this by relaxing GetMessageHeaderForCheck (by using constexpr instead of consteval). This produces no functional changes because the result of GetMessageHeaderForCheck() is assigned to a constexpr variable, so the result is guaranteed to be computed at compile-time. * stratosphere: fix missing require clauses in definitions GCC not requiring the require clauses to be repeated for member definitions is actually a compiler bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96830 Clang rejects declarations with missing require clauses. * Fix ALWAYS_INLINE_LAMBDA and parameter list relative order While GCC doesn't seem to care about the position of the always_inline attribute relative to the parameter list, Clang is very picky and requires the attribute to appear after the parameter list (and before a trailing return type) * stratosphere: fix static constexpr member variable with incomplete type GCC accepts this for some reason (because of the lambda?) but Clang correctly rejects this.
522 lines
23 KiB
C++
522 lines
23 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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#include "sysupdater_service.hpp"
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#include "sysupdater_async_impl.hpp"
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#include "sysupdater_fs_utils.hpp"
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namespace ams::mitm::sysupdater {
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namespace {
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/* ExFat NCAs prior to 2.0.0 do not actually include the exfat driver, and don't boot. */
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constexpr inline u32 MinimumVersionForExFatDriver = 65536;
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bool IsExFatDriverSupported(const ncm::ContentMetaInfo &info) {
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return info.version >= MinimumVersionForExFatDriver && ((info.attributes & ncm::ContentMetaAttribute_IncludesExFatDriver) != 0);
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}
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template<typename F>
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Result ForEachFileInDirectory(const char *root_path, F f) {
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/* Open the directory. */
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fs::DirectoryHandle dir;
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R_TRY(fs::OpenDirectory(std::addressof(dir), root_path, fs::OpenDirectoryMode_File));
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ON_SCOPE_EXIT { fs::CloseDirectory(dir); };
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while (true) {
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/* Read the current entry. */
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s64 count;
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fs::DirectoryEntry entry;
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R_TRY(fs::ReadDirectory(std::addressof(count), std::addressof(entry), dir, 1));
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if (count == 0) {
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break;
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}
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/* Invoke our handler on the entry. */
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bool done;
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R_TRY(f(std::addressof(done), entry));
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R_SUCCEED_IF(done);
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}
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return ResultSuccess();
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}
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Result ConvertToFsCommonPath(char *dst, size_t dst_size, const char *package_root_path, const char *entry_path) {
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char package_path[ams::fs::EntryNameLengthMax];
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const size_t path_len = util::SNPrintf(package_path, sizeof(package_path), "%s%s", package_root_path, entry_path);
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AMS_ABORT_UNLESS(path_len < ams::fs::EntryNameLengthMax);
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return ams::fs::ConvertToFsCommonPath(dst, dst_size, package_path);
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}
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Result LoadContentMeta(ncm::AutoBuffer *out, const char *package_root_path, const fs::DirectoryEntry &entry) {
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AMS_ABORT_UNLESS(PathView(entry.name).HasSuffix(".cnmt.nca"));
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char path[ams::fs::EntryNameLengthMax];
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R_TRY(ConvertToFsCommonPath(path, sizeof(path), package_root_path, entry.name));
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return ncm::ReadContentMetaPath(out, path);
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}
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Result ReadContentMetaPath(ncm::AutoBuffer *out, const char *package_root, const ncm::ContentInfo &content_info) {
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/* Get the .cnmt.nca path for the info. */
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char cnmt_nca_name[ncm::ContentIdStringLength + 10];
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ncm::GetStringFromContentId(cnmt_nca_name, sizeof(cnmt_nca_name), content_info.GetId());
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std::memcpy(cnmt_nca_name + ncm::ContentIdStringLength, ".cnmt.nca", std::strlen(".cnmt.nca"));
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cnmt_nca_name[sizeof(cnmt_nca_name) - 1] = '\x00';
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/* Create a new path. */
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ncm::Path content_path;
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R_TRY(ConvertToFsCommonPath(content_path.str, sizeof(content_path.str), package_root, cnmt_nca_name));
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/* Read the content meta path. */
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return ncm::ReadContentMetaPath(out, content_path.str);
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}
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Result GetSystemUpdateUpdateContentInfoFromPackage(ncm::ContentInfo *out, const char *package_root) {
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bool found_system_update = false;
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/* Iterate over all files to find the system update meta. */
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R_TRY(ForEachFileInDirectory(package_root, [&](bool *done, const fs::DirectoryEntry &entry) -> Result {
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/* Don't early terminate by default. */
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*done = false;
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/* We have nothing to list if we're not looking at a meta. */
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R_SUCCEED_IF(!PathView(entry.name).HasSuffix(".cnmt.nca"));
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/* Read the content meta path, and build. */
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ncm::AutoBuffer package_meta;
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R_TRY(LoadContentMeta(std::addressof(package_meta), package_root, entry));
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/* Create a reader. */
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const auto reader = ncm::PackagedContentMetaReader(package_meta.Get(), package_meta.GetSize());
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/* If we find a system update, we're potentially done. */
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if (reader.GetHeader()->type == ncm::ContentMetaType::SystemUpdate) {
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/* Try to parse a content id from the name. */
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auto content_id = ncm::GetContentIdFromString(entry.name, sizeof(entry.name));
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R_UNLESS(content_id, ncm::ResultInvalidPackageFormat());
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/* We're done. */
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*done = true;
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found_system_update = true;
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*out = ncm::ContentInfo::Make(*content_id, entry.file_size, ncm::ContentType::Meta);
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}
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return ResultSuccess();
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}));
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/* If we didn't find anything, error. */
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R_UNLESS(found_system_update, ncm::ResultSystemUpdateNotFoundInPackage());
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return ResultSuccess();
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}
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Result ValidateSystemUpdate(Result *out_result, Result *out_exfat_result, UpdateValidationInfo *out_info, const ncm::PackagedContentMetaReader &update_reader, const char *package_root) {
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/* Clear output. */
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*out_result = ResultSuccess();
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*out_exfat_result = ResultSuccess();
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/* We want to track all content the update requires. */
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const size_t num_content_metas = update_reader.GetContentMetaCount();
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bool content_meta_valid[num_content_metas] = {};
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/* Allocate a buffer to use for validation. */
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size_t data_buffer_size = 1_MB;
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void *data_buffer;
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do {
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data_buffer = std::malloc(data_buffer_size);
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if (data_buffer != nullptr) {
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break;
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}
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data_buffer_size /= 2;
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} while (data_buffer_size >= 16_KB);
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R_UNLESS(data_buffer != nullptr, fs::ResultAllocationFailureInNew());
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ON_SCOPE_EXIT { std::free(data_buffer); };
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/* Declare helper for result validation. */
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auto ValidateResult = [&](Result result) ALWAYS_INLINE_LAMBDA -> Result {
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*out_result = result;
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return result;
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};
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/* Iterate over all files to find all content metas. */
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R_TRY(ForEachFileInDirectory(package_root, [&](bool *done, const fs::DirectoryEntry &entry) -> Result {
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/* Clear output. */
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*out_info = {};
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/* Don't early terminate by default. */
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*done = false;
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/* We have nothing to list if we're not looking at a meta. */
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R_SUCCEED_IF(!PathView(entry.name).HasSuffix(".cnmt.nca"));
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/* Read the content meta path, and build. */
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ncm::AutoBuffer package_meta;
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R_TRY(LoadContentMeta(std::addressof(package_meta), package_root, entry));
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/* Create a reader. */
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const auto reader = ncm::PackagedContentMetaReader(package_meta.Get(), package_meta.GetSize());
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/* Get the key for the reader. */
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const auto key = reader.GetKey();
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/* Check if we need to validate this content. */
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bool need_validate = false;
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size_t validation_index = 0;
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for (size_t i = 0; i < num_content_metas; ++i) {
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if (update_reader.GetContentMetaInfo(i)->ToKey() == key) {
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need_validate = true;
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validation_index = i;
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break;
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}
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}
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/* If we don't need to validate, continue. */
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R_SUCCEED_IF(!need_validate);
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/* We're validating. */
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out_info->invalid_key = key;
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/* Validate all contents. */
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for (size_t i = 0; i < reader.GetContentCount(); ++i) {
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const auto *content_info = reader.GetContentInfo(i);
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const auto &content_id = content_info->GetId();
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const s64 content_size = content_info->info.GetSize();
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out_info->invalid_content_id = content_id;
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/* Get the content id string. */
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auto content_id_str = ncm::GetContentIdString(content_id);
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/* Open the file. */
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fs::FileHandle file;
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{
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char path[fs::EntryNameLengthMax];
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util::SNPrintf(path, sizeof(path), "%s%s%s", package_root, content_id_str.data, content_info->GetType() == ncm::ContentType::Meta ? ".cnmt.nca" : ".nca");
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if (R_FAILED(ValidateResult(fs::OpenFile(std::addressof(file), path, ams::fs::OpenMode_Read)))) {
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*done = true;
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return ResultSuccess();
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}
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}
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ON_SCOPE_EXIT { fs::CloseFile(file); };
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/* Validate the file size is correct. */
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s64 file_size;
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if (R_FAILED(ValidateResult(fs::GetFileSize(std::addressof(file_size), file)))) {
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*done = true;
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return ResultSuccess();
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}
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if (file_size != content_size) {
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*out_result = ncm::ResultInvalidContentHash();
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*done = true;
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return ResultSuccess();
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}
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/* Read and hash the file in chunks. */
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crypto::Sha256Generator sha;
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sha.Initialize();
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s64 ofs = 0;
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while (ofs < content_size) {
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const size_t cur_size = std::min(static_cast<size_t>(content_size - ofs), data_buffer_size);
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if (R_FAILED(ValidateResult(fs::ReadFile(file, ofs, data_buffer, cur_size)))) {
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*done = true;
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return ResultSuccess();
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}
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sha.Update(data_buffer, cur_size);
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ofs += cur_size;
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}
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/* Get the hash. */
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ncm::Digest calc_digest;
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sha.GetHash(std::addressof(calc_digest), sizeof(calc_digest));
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/* Validate the hash. */
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if (std::memcmp(std::addressof(calc_digest), std::addressof(content_info->digest), sizeof(ncm::Digest)) != 0) {
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*out_result = ncm::ResultInvalidContentHash();
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*done = true;
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return ResultSuccess();
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}
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}
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/* Mark the relevant content as validated. */
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content_meta_valid[validation_index] = true;
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*out_info = {};
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return ResultSuccess();
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}));
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/* If we're otherwise going to succeed, ensure that every content was found. */
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if (R_SUCCEEDED(*out_result)) {
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for (size_t i = 0; i < num_content_metas; ++i) {
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if (!content_meta_valid[i]) {
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const ncm::ContentMetaInfo *info = update_reader.GetContentMetaInfo(i);
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*out_info = { .invalid_key = info->ToKey(), };
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if (IsExFatDriverSupported(*info)) {
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*out_exfat_result = fs::ResultPathNotFound();
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/* Continue, in case there's a non-exFAT failure result. */
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} else {
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*out_result = fs::ResultPathNotFound();
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break;
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}
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}
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}
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}
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return ResultSuccess();
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}
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Result FormatUserPackagePath(ncm::Path *out, const ncm::Path &user_path) {
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/* Ensure that the user path is valid. */
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R_UNLESS(user_path.str[0] == '/', fs::ResultInvalidPath());
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/* Print as @Sdcard:<user_path>/ */
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util::SNPrintf(out->str, sizeof(out->str), "%s:%s/", ams::fs::impl::SdCardFileSystemMountName, user_path.str);
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/* Normalize, if the user provided an ending / */
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const size_t len = std::strlen(out->str);
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if (out->str[len - 1] == '/' && out->str[len - 2] == '/') {
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out->str[len - 1] = '\x00';
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}
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return ResultSuccess();
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}
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const char *GetFirmwareVariationSettingName(settings::system::PlatformRegion region) {
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switch (region) {
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case settings::system::PlatformRegion_Global: return "firmware_variation";
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case settings::system::PlatformRegion_China: return "t_firmware_variation";
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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ncm::FirmwareVariationId GetFirmwareVariationId() {
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/* Get the firmware variation setting name. */
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const char * const setting_name = GetFirmwareVariationSettingName(settings::system::GetPlatformRegion());
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/* Retrieve the firmware variation id. */
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ncm::FirmwareVariationId id = {};
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settings::fwdbg::GetSettingsItemValue(std::addressof(id.value), sizeof(u8), "ns.systemupdate", setting_name);
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return id;
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}
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}
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Result SystemUpdateService::GetUpdateInformation(sf::Out<UpdateInformation> out, const ncm::Path &path) {
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/* Adjust the path. */
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ncm::Path package_root;
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R_TRY(FormatUserPackagePath(std::addressof(package_root), path));
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/* Create a new update information. */
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UpdateInformation update_info = {};
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/* Parse the update. */
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{
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/* Get the content info for the system update. */
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ncm::ContentInfo content_info;
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R_TRY(GetSystemUpdateUpdateContentInfoFromPackage(std::addressof(content_info), package_root.str));
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/* Read the content meta. */
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ncm::AutoBuffer content_meta_buffer;
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R_TRY(ReadContentMetaPath(std::addressof(content_meta_buffer), package_root.str, content_info));
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/* Create a reader. */
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const auto reader = ncm::PackagedContentMetaReader(content_meta_buffer.Get(), content_meta_buffer.GetSize());
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/* Get the version from the header. */
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update_info.version = reader.GetHeader()->version;
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/* Iterate over infos to find the system update info. */
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for (size_t i = 0; i < reader.GetContentMetaCount(); ++i) {
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const auto &meta_info = *reader.GetContentMetaInfo(i);
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switch (meta_info.type) {
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case ncm::ContentMetaType::BootImagePackage:
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/* Detect exFAT support. */
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update_info.exfat_supported |= IsExFatDriverSupported(meta_info);
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break;
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default:
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break;
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}
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}
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/* Default to no firmware variations. */
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update_info.firmware_variation_count = 0;
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/* Parse firmware variations if relevant. */
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if (reader.GetExtendedDataSize() != 0) {
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/* Get the actual firmware variation count. */
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ncm::SystemUpdateMetaExtendedDataReader extended_data_reader(reader.GetExtendedData(), reader.GetExtendedDataSize());
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update_info.firmware_variation_count = extended_data_reader.GetFirmwareVariationCount();
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/* NOTE: Update this if Nintendo ever actually releases an update with this many variations? */
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R_UNLESS(update_info.firmware_variation_count <= FirmwareVariationCountMax, ncm::ResultInvalidFirmwareVariation());
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for (size_t i = 0; i < update_info.firmware_variation_count; ++i) {
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update_info.firmware_variation_ids[i] = *extended_data_reader.GetFirmwareVariationId(i);
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}
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}
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}
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/* Set the parsed update info. */
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out.SetValue(update_info);
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return ResultSuccess();
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}
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Result SystemUpdateService::ValidateUpdate(sf::Out<Result> out_validate_result, sf::Out<Result> out_validate_exfat_result, sf::Out<UpdateValidationInfo> out_validate_info, const ncm::Path &path) {
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/* Adjust the path. */
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ncm::Path package_root;
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R_TRY(FormatUserPackagePath(std::addressof(package_root), path));
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/* Parse the update. */
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{
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/* Get the content info for the system update. */
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ncm::ContentInfo content_info;
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R_TRY(GetSystemUpdateUpdateContentInfoFromPackage(std::addressof(content_info), package_root.str));
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/* Read the content meta. */
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ncm::AutoBuffer content_meta_buffer;
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R_TRY(ReadContentMetaPath(std::addressof(content_meta_buffer), package_root.str, content_info));
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/* Create a reader. */
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const auto reader = ncm::PackagedContentMetaReader(content_meta_buffer.Get(), content_meta_buffer.GetSize());
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/* Validate the update. */
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R_TRY(ValidateSystemUpdate(out_validate_result.GetPointer(), out_validate_exfat_result.GetPointer(), out_validate_info.GetPointer(), reader, package_root.str));
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}
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return ResultSuccess();
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};
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Result SystemUpdateService::SetupUpdate(sf::CopyHandle &&transfer_memory, u64 transfer_memory_size, const ncm::Path &path, bool exfat) {
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return this->SetupUpdateImpl(std::move(transfer_memory), transfer_memory_size, path, exfat, GetFirmwareVariationId());
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}
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Result SystemUpdateService::SetupUpdateWithVariation(sf::CopyHandle &&transfer_memory, u64 transfer_memory_size, const ncm::Path &path, bool exfat, ncm::FirmwareVariationId firmware_variation_id) {
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return this->SetupUpdateImpl(std::move(transfer_memory), transfer_memory_size, path, exfat, firmware_variation_id);
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}
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Result SystemUpdateService::RequestPrepareUpdate(sf::OutCopyHandle out_event_handle, sf::Out<sf::SharedPointer<ns::impl::IAsyncResult>> out_async) {
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/* Ensure the update is setup but not prepared. */
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R_UNLESS(m_setup_update, ns::ResultCardUpdateNotSetup());
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R_UNLESS(!m_requested_update, ns::ResultPrepareCardUpdateAlreadyRequested());
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/* Create the async result. */
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auto async_result = sf::CreateSharedObjectEmplaced<ns::impl::IAsyncResult, AsyncPrepareSdCardUpdateImpl>(std::addressof(*m_update_task));
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R_UNLESS(async_result != nullptr, ns::ResultOutOfMaxRunningTask());
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/* Run the task. */
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R_TRY(async_result.GetImpl().Run());
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/* We prepared the task! */
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m_requested_update = true;
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out_event_handle.SetValue(async_result.GetImpl().GetEvent().GetReadableHandle(), false);
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*out_async = std::move(async_result);
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return ResultSuccess();
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}
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Result SystemUpdateService::GetPrepareUpdateProgress(sf::Out<SystemUpdateProgress> out) {
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/* Ensure the update is setup. */
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R_UNLESS(m_setup_update, ns::ResultCardUpdateNotSetup());
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/* Get the progress. */
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auto install_progress = m_update_task->GetProgress();
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out.SetValue({ .current_size = install_progress.installed_size, .total_size = install_progress.total_size });
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return ResultSuccess();
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}
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Result SystemUpdateService::HasPreparedUpdate(sf::Out<bool> out) {
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/* Ensure the update is setup. */
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R_UNLESS(m_setup_update, ns::ResultCardUpdateNotSetup());
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out.SetValue(m_update_task->GetProgress().state == ncm::InstallProgressState::Downloaded);
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return ResultSuccess();
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}
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Result SystemUpdateService::ApplyPreparedUpdate() {
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/* Ensure the update is setup. */
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R_UNLESS(m_setup_update, ns::ResultCardUpdateNotSetup());
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|
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/* Ensure the update is prepared. */
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R_UNLESS(m_update_task->GetProgress().state == ncm::InstallProgressState::Downloaded, ns::ResultCardUpdateNotPrepared());
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|
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/* Apply the task. */
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R_TRY(m_apply_manager.ApplyPackageTask(std::addressof(*m_update_task)));
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|
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return ResultSuccess();
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}
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Result SystemUpdateService::SetupUpdateImpl(sf::NativeHandle &&transfer_memory, u64 transfer_memory_size, const ncm::Path &path, bool exfat, ncm::FirmwareVariationId firmware_variation_id) {
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/* Ensure we don't already have an update set up. */
|
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R_UNLESS(!m_setup_update, ns::ResultCardUpdateAlreadySetup());
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|
|
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/* Destroy any existing update tasks. */
|
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nim::SystemUpdateTaskId id;
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auto count = nim::ListSystemUpdateTask(std::addressof(id), 1);
|
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if (count > 0) {
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R_TRY(nim::DestroySystemUpdateTask(id));
|
|
}
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|
|
|
/* Initialize the update task. */
|
|
R_TRY(InitializeUpdateTask(std::move(transfer_memory), transfer_memory_size, path, exfat, firmware_variation_id));
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|
|
|
/* The update is now set up. */
|
|
m_setup_update = true;
|
|
return ResultSuccess();
|
|
}
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|
|
|
Result SystemUpdateService::InitializeUpdateTask(sf::NativeHandle &&transfer_memory, u64 transfer_memory_size, const ncm::Path &path, bool exfat, ncm::FirmwareVariationId firmware_variation_id) {
|
|
/* Map the transfer memory. */
|
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const size_t tmem_buffer_size = static_cast<size_t>(transfer_memory_size);
|
|
m_update_transfer_memory.emplace(tmem_buffer_size, transfer_memory.GetOsHandle(), transfer_memory.IsManaged());
|
|
transfer_memory.Detach();
|
|
|
|
void *tmem_buffer;
|
|
R_TRY(m_update_transfer_memory->Map(std::addressof(tmem_buffer), os::MemoryPermission_None));
|
|
auto tmem_guard = SCOPE_GUARD {
|
|
m_update_transfer_memory->Unmap();
|
|
m_update_transfer_memory = util::nullopt;
|
|
};
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|
|
|
/* Adjust the package root. */
|
|
ncm::Path package_root;
|
|
R_TRY(FormatUserPackagePath(std::addressof(package_root), path));
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|
|
|
/* Ensure that we can create an update context. */
|
|
R_TRY(fs::EnsureDirectoryRecursively("@Sdcard:/atmosphere/update/"));
|
|
const char *context_path = "@Sdcard:/atmosphere/update/cup.ctx";
|
|
|
|
/* Create and initialize the update task. */
|
|
m_update_task.emplace();
|
|
R_TRY(m_update_task->Initialize(package_root.str, context_path, tmem_buffer, tmem_buffer_size, exfat, firmware_variation_id));
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|
|
|
/* We successfully setup the update. */
|
|
tmem_guard.Cancel();
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
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