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-rw-r--r--src/core/CMakeLists.txt8
-rw-r--r--src/core/file_sys/nca_metadata.cpp125
-rw-r--r--src/core/file_sys/nca_metadata.h105
3 files changed, 238 insertions, 0 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index cceb1564b..8cf9fb405 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -20,6 +20,8 @@ add_library(core STATIC
crypto/key_manager.h
crypto/ctr_encryption_layer.cpp
crypto/ctr_encryption_layer.h
+ file_sys/bis_factory.cpp
+ file_sys/bis_factory.h
file_sys/card_image.cpp
file_sys/card_image.h
file_sys/content_archive.cpp
@@ -29,10 +31,14 @@ add_library(core STATIC
file_sys/directory.h
file_sys/errors.h
file_sys/mode.h
+ file_sys/nca_metadata.cpp
+ file_sys/nca_metadata.h
file_sys/partition_filesystem.cpp
file_sys/partition_filesystem.h
file_sys/program_metadata.cpp
file_sys/program_metadata.h
+ file_sys/registered_cache.cpp
+ file_sys/registered_cache.h
file_sys/romfs.cpp
file_sys/romfs.h
file_sys/romfs_factory.cpp
@@ -43,6 +49,8 @@ add_library(core STATIC
file_sys/sdmc_factory.h
file_sys/vfs.cpp
file_sys/vfs.h
+ file_sys/vfs_concat.cpp
+ file_sys/vfs_concat.h
file_sys/vfs_offset.cpp
file_sys/vfs_offset.h
file_sys/vfs_real.cpp
diff --git a/src/core/file_sys/nca_metadata.cpp b/src/core/file_sys/nca_metadata.cpp
new file mode 100644
index 000000000..fa06897b7
--- /dev/null
+++ b/src/core/file_sys/nca_metadata.cpp
@@ -0,0 +1,125 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_funcs.h"
+#include "common/swap.h"
+#include "content_archive.h"
+#include "core/file_sys/nca_metadata.h"
+
+namespace FileSys {
+
+CNMT::CNMT(VirtualFile file_) : file(std::move(file_)), header(std::make_unique<CNMTHeader>()) {
+ if (file->ReadObject(header.get()) != sizeof(CNMTHeader))
+ return;
+
+ // If type is {Application, Update, AOC} has opt-header.
+ if (static_cast<u8>(header->type) >= 0x80 && static_cast<u8>(header->type) <= 0x82) {
+ opt_header = std::make_unique<OptionalHeader>();
+ if (file->ReadObject(opt_header.get(), sizeof(CNMTHeader)) != sizeof(OptionalHeader)) {
+ opt_header = nullptr;
+ }
+ }
+
+ for (u16 i = 0; i < header->number_content_entries; ++i) {
+ auto& next = content_records.emplace_back(ContentRecord{});
+ if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(ContentRecord) +
+ header->table_offset) != sizeof(ContentRecord)) {
+ content_records.erase(content_records.end() - 1);
+ }
+ }
+
+ for (u16 i = 0; i < header->number_meta_entries; ++i) {
+ auto& next = meta_records.emplace_back(MetaRecord{});
+ if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(MetaRecord) +
+ header->table_offset) != sizeof(MetaRecord)) {
+ meta_records.erase(meta_records.end() - 1);
+ }
+ }
+}
+
+CNMT::CNMT(CNMTHeader header, OptionalHeader opt_header, std::vector<ContentRecord> content_records,
+ std::vector<MetaRecord> meta_records)
+ : file(nullptr), header(std::make_unique<CNMTHeader>(std::move(header))),
+ opt_header(std::make_unique<OptionalHeader>(std::move(opt_header))),
+ content_records(std::move(content_records)), meta_records(std::move(meta_records)) {}
+
+u64 CNMT::GetTitleID() const {
+ return header->title_id;
+}
+
+u32 CNMT::GetTitleVersion() const {
+ return header->title_version;
+}
+
+TitleType CNMT::GetType() const {
+ return header->type;
+}
+
+const std::vector<ContentRecord>& CNMT::GetContentRecords() const {
+ return content_records;
+}
+
+const std::vector<MetaRecord>& CNMT::GetMetaRecords() const {
+ return meta_records;
+}
+
+bool CNMT::UnionRecords(const CNMT& other) {
+ bool change = false;
+ for (const auto& rec : other.content_records) {
+ const auto iter = std::find_if(
+ content_records.begin(), content_records.end(),
+ [rec](const ContentRecord& r) { return r.nca_id == rec.nca_id && r.type == rec.type; });
+ if (iter == content_records.end()) {
+ content_records.emplace_back(rec);
+ ++header->number_content_entries;
+ change = true;
+ }
+ }
+ for (const auto& rec : other.meta_records) {
+ const auto iter =
+ std::find_if(meta_records.begin(), meta_records.end(), [rec](const MetaRecord& r) {
+ return r.title_id == rec.title_id && r.title_version == rec.title_version &&
+ r.type == rec.type;
+ });
+ if (iter == meta_records.end()) {
+ meta_records.emplace_back(rec);
+ ++header->number_meta_entries;
+ change = true;
+ }
+ }
+ return change;
+}
+
+std::vector<u8> CNMT::Serialize() const {
+ if (header == nullptr)
+ return {};
+ std::vector<u8> out(sizeof(CNMTHeader));
+ out.reserve(0x100); // Avoid resizing -- average size.
+ memcpy(out.data(), header.get(), sizeof(CNMTHeader));
+ if (opt_header != nullptr) {
+ out.resize(out.size() + sizeof(OptionalHeader));
+ memcpy(out.data() + sizeof(CNMTHeader), opt_header.get(), sizeof(OptionalHeader));
+ }
+
+ auto offset = header->table_offset;
+
+ const auto dead_zone = offset + sizeof(CNMTHeader) - out.size();
+ if (dead_zone > 0)
+ out.resize(offset + sizeof(CNMTHeader));
+
+ for (const auto& rec : content_records) {
+ out.resize(out.size() + sizeof(ContentRecord));
+ memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(ContentRecord));
+ offset += sizeof(ContentRecord);
+ }
+
+ for (const auto& rec : meta_records) {
+ out.resize(out.size() + sizeof(MetaRecord));
+ memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(MetaRecord));
+ offset += sizeof(MetaRecord);
+ }
+
+ return out;
+}
+} // namespace FileSys
diff --git a/src/core/file_sys/nca_metadata.h b/src/core/file_sys/nca_metadata.h
new file mode 100644
index 000000000..7b0725f36
--- /dev/null
+++ b/src/core/file_sys/nca_metadata.h
@@ -0,0 +1,105 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include "core/file_sys/vfs.h"
+
+namespace FileSys {
+class CNMT;
+
+struct CNMTHeader;
+struct OptionalHeader;
+
+enum class TitleType : u8 {
+ SystemProgram = 0x01,
+ SystemDataArchive = 0x02,
+ SystemUpdate = 0x03,
+ FirmwarePackageA = 0x04,
+ FirmwarePackageB = 0x05,
+ Application = 0x80,
+ Update = 0x81,
+ AOC = 0x82,
+ DeltaTitle = 0x83,
+};
+
+enum class ContentRecordType : u8 {
+ Meta = 0,
+ Program = 1,
+ Data = 2,
+ Control = 3,
+ Manual = 4,
+ Legal = 5,
+ Patch = 6,
+};
+
+struct ContentRecord {
+ std::array<u8, 0x20> hash;
+ std::array<u8, 0x10> nca_id;
+ std::array<u8, 0x6> size;
+ ContentRecordType type;
+ INSERT_PADDING_BYTES(1);
+};
+static_assert(sizeof(ContentRecord) == 0x38, "ContentRecord has incorrect size.");
+
+constexpr ContentRecord EMPTY_META_CONTENT_RECORD{{}, {}, {}, ContentRecordType::Meta, {}};
+
+struct MetaRecord {
+ u64_le title_id;
+ u32_le title_version;
+ TitleType type;
+ u8 install_byte;
+ INSERT_PADDING_BYTES(2);
+};
+static_assert(sizeof(MetaRecord) == 0x10, "MetaRecord has incorrect size.");
+
+struct OptionalHeader {
+ u64_le title_id;
+ u64_le minimum_version;
+};
+static_assert(sizeof(OptionalHeader) == 0x10, "OptionalHeader has incorrect size.");
+
+struct CNMTHeader {
+ u64_le title_id;
+ u32_le title_version;
+ TitleType type;
+ INSERT_PADDING_BYTES(1);
+ u16_le table_offset;
+ u16_le number_content_entries;
+ u16_le number_meta_entries;
+ INSERT_PADDING_BYTES(12);
+};
+static_assert(sizeof(CNMTHeader) == 0x20, "CNMTHeader has incorrect size.");
+
+// A class representing the format used by NCA metadata files, typically named {}.cnmt.nca or
+// meta0.ncd. These describe which NCA's belong with which titles in the registered cache.
+class CNMT {
+public:
+ explicit CNMT(VirtualFile file);
+ CNMT(CNMTHeader header, OptionalHeader opt_header, std::vector<ContentRecord> content_records,
+ std::vector<MetaRecord> meta_records);
+
+ u64 GetTitleID() const;
+ u32 GetTitleVersion() const;
+ TitleType GetType() const;
+
+ const std::vector<ContentRecord>& GetContentRecords() const;
+ const std::vector<MetaRecord>& GetMetaRecords() const;
+
+ bool UnionRecords(const CNMT& other);
+ std::vector<u8> Serialize() const;
+
+private:
+ VirtualFile file;
+ std::unique_ptr<CNMTHeader> header;
+ std::unique_ptr<OptionalHeader> opt_header;
+ std::vector<ContentRecord> content_records;
+ std::vector<MetaRecord> meta_records;
+
+ // TODO(DarkLordZach): According to switchbrew, for Patch-type there is additional data
+ // after the table. This is not documented, unfortunately.
+};
+
+} // namespace FileSys
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 21:22:08 +0100