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-rw-r--r--src/core/file_sys/archive_ncch.cpp29
-rw-r--r--src/core/file_sys/ncch_container.cpp245
-rw-r--r--src/core/file_sys/ncch_container.h30
-rw-r--r--src/core/file_sys/title_metadata.cpp212
-rw-r--r--src/core/file_sys/title_metadata.h125
5 files changed, 566 insertions, 75 deletions
diff --git a/src/core/file_sys/archive_ncch.cpp b/src/core/file_sys/archive_ncch.cpp
index 6d9007731..e8c5be983 100644
--- a/src/core/file_sys/archive_ncch.cpp
+++ b/src/core/file_sys/archive_ncch.cpp
@@ -13,7 +13,10 @@
#include "core/file_sys/archive_ncch.h"
#include "core/file_sys/errors.h"
#include "core/file_sys/ivfc_archive.h"
+#include "core/file_sys/ncch_container.h"
+#include "core/file_sys/title_metadata.h"
#include "core/hle/service/fs/archive.h"
+#include "core/loader/loader.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
@@ -25,8 +28,18 @@ static std::string GetNCCHContainerPath(const std::string& nand_directory) {
}
static std::string GetNCCHPath(const std::string& mount_point, u32 high, u32 low) {
- return Common::StringFromFormat("%s%08x/%08x/content/00000000.app.romfs", mount_point.c_str(),
- high, low);
+ u32 content_id = 0;
+
+ // TODO(shinyquagsire23): Title database should be doing this path lookup
+ std::string content_path =
+ Common::StringFromFormat("%s%08x/%08x/content/", mount_point.c_str(), high, low);
+ std::string tmd_path = content_path + "00000000.tmd";
+ TitleMetadata tmd(tmd_path);
+ if (tmd.Load() == Loader::ResultStatus::Success) {
+ content_id = tmd.GetBootContentID();
+ }
+
+ return Common::StringFromFormat("%s%08x.app", content_path.c_str(), content_id);
}
ArchiveFactory_NCCH::ArchiveFactory_NCCH(const std::string& nand_directory)
@@ -38,9 +51,14 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NCCH::Open(const Path&
u32 high = data[1];
u32 low = data[0];
std::string file_path = GetNCCHPath(mount_point, high, low);
- auto file = std::make_shared<FileUtil::IOFile>(file_path, "rb");
- if (!file->IsOpen()) {
+ std::shared_ptr<FileUtil::IOFile> romfs_file;
+ u64 romfs_offset = 0;
+ u64 romfs_size = 0;
+ auto ncch_container = NCCHContainer(file_path);
+
+ if (ncch_container.ReadRomFS(romfs_file, romfs_offset, romfs_size) !=
+ Loader::ResultStatus::Success) {
// High Title ID of the archive: The category (https://3dbrew.org/wiki/Title_list).
constexpr u32 shared_data_archive = 0x0004009B;
constexpr u32 system_data_archive = 0x000400DB;
@@ -74,9 +92,8 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NCCH::Open(const Path&
}
return ERROR_NOT_FOUND;
}
- auto size = file->GetSize();
- auto archive = std::make_unique<IVFCArchive>(file, 0, size);
+ auto archive = std::make_unique<IVFCArchive>(romfs_file, romfs_offset, romfs_size);
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
}
diff --git a/src/core/file_sys/ncch_container.cpp b/src/core/file_sys/ncch_container.cpp
index 59c72f3e9..b9fb940c7 100644
--- a/src/core/file_sys/ncch_container.cpp
+++ b/src/core/file_sys/ncch_container.cpp
@@ -116,92 +116,143 @@ Loader::ResultStatus NCCHContainer::Load() {
if (is_loaded)
return Loader::ResultStatus::Success;
- // Reset read pointer in case this file has been read before.
- file.Seek(0, SEEK_SET);
+ if (file.IsOpen()) {
+ // Reset read pointer in case this file has been read before.
+ file.Seek(0, SEEK_SET);
- if (file.ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header))
- return Loader::ResultStatus::Error;
+ if (file.ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header))
+ return Loader::ResultStatus::Error;
- // Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
- if (Loader::MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) {
- LOG_DEBUG(Service_FS, "Only loading the first (bootable) NCCH within the NCSD file!");
- ncch_offset = 0x4000;
- file.Seek(ncch_offset, SEEK_SET);
- file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
- }
+ // Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
+ if (Loader::MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) {
+ LOG_DEBUG(Service_FS, "Only loading the first (bootable) NCCH within the NCSD file!");
+ ncch_offset = 0x4000;
+ file.Seek(ncch_offset, SEEK_SET);
+ file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
+ }
- // Verify we are loading the correct file type...
- if (Loader::MakeMagic('N', 'C', 'C', 'H') != ncch_header.magic)
- return Loader::ResultStatus::ErrorInvalidFormat;
+ // Verify we are loading the correct file type...
+ if (Loader::MakeMagic('N', 'C', 'C', 'H') != ncch_header.magic)
+ return Loader::ResultStatus::ErrorInvalidFormat;
+
+ has_header = true;
+
+ // System archives and DLC don't have an extended header but have RomFS
+ if (ncch_header.extended_header_size) {
+ if (file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)) !=
+ sizeof(ExHeader_Header))
+ return Loader::ResultStatus::Error;
+
+ is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
+ u32 entry_point = exheader_header.codeset_info.text.address;
+ u32 code_size = exheader_header.codeset_info.text.code_size;
+ u32 stack_size = exheader_header.codeset_info.stack_size;
+ u32 bss_size = exheader_header.codeset_info.bss_size;
+ u32 core_version = exheader_header.arm11_system_local_caps.core_version;
+ u8 priority = exheader_header.arm11_system_local_caps.priority;
+ u8 resource_limit_category =
+ exheader_header.arm11_system_local_caps.resource_limit_category;
+
+ LOG_DEBUG(Service_FS, "Name: %s",
+ exheader_header.codeset_info.name);
+ LOG_DEBUG(Service_FS, "Program ID: %016" PRIX64,
+ ncch_header.program_id);
+ LOG_DEBUG(Service_FS, "Code compressed: %s", is_compressed ? "yes" : "no");
+ LOG_DEBUG(Service_FS, "Entry point: 0x%08X", entry_point);
+ LOG_DEBUG(Service_FS, "Code size: 0x%08X", code_size);
+ LOG_DEBUG(Service_FS, "Stack size: 0x%08X", stack_size);
+ LOG_DEBUG(Service_FS, "Bss size: 0x%08X", bss_size);
+ LOG_DEBUG(Service_FS, "Core version: %d", core_version);
+ LOG_DEBUG(Service_FS, "Thread priority: 0x%X", priority);
+ LOG_DEBUG(Service_FS, "Resource limit category: %d", resource_limit_category);
+ LOG_DEBUG(Service_FS, "System Mode: %d",
+ static_cast<int>(exheader_header.arm11_system_local_caps.system_mode));
+
+ if (exheader_header.system_info.jump_id != ncch_header.program_id) {
+ LOG_ERROR(Service_FS,
+ "ExHeader Program ID mismatch: the ROM is probably encrypted.");
+ return Loader::ResultStatus::ErrorEncrypted;
+ }
- // System archives and DLC don't have an extended header but have RomFS
- if (ncch_header.extended_header_size) {
- if (file.ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header))
- return Loader::ResultStatus::Error;
+ has_exheader = true;
+ }
- is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
- u32 entry_point = exheader_header.codeset_info.text.address;
- u32 code_size = exheader_header.codeset_info.text.code_size;
- u32 stack_size = exheader_header.codeset_info.stack_size;
- u32 bss_size = exheader_header.codeset_info.bss_size;
- u32 core_version = exheader_header.arm11_system_local_caps.core_version;
- u8 priority = exheader_header.arm11_system_local_caps.priority;
- u8 resource_limit_category =
- exheader_header.arm11_system_local_caps.resource_limit_category;
-
- LOG_DEBUG(Service_FS, "Name: %s", exheader_header.codeset_info.name);
- LOG_DEBUG(Service_FS, "Program ID: %016" PRIX64, ncch_header.program_id);
- LOG_DEBUG(Service_FS, "Code compressed: %s", is_compressed ? "yes" : "no");
- LOG_DEBUG(Service_FS, "Entry point: 0x%08X", entry_point);
- LOG_DEBUG(Service_FS, "Code size: 0x%08X", code_size);
- LOG_DEBUG(Service_FS, "Stack size: 0x%08X", stack_size);
- LOG_DEBUG(Service_FS, "Bss size: 0x%08X", bss_size);
- LOG_DEBUG(Service_FS, "Core version: %d", core_version);
- LOG_DEBUG(Service_FS, "Thread priority: 0x%X", priority);
- LOG_DEBUG(Service_FS, "Resource limit category: %d", resource_limit_category);
- LOG_DEBUG(Service_FS, "System Mode: %d",
- static_cast<int>(exheader_header.arm11_system_local_caps.system_mode));
-
- if (exheader_header.system_info.jump_id != ncch_header.program_id) {
- LOG_ERROR(Service_FS, "ExHeader Program ID mismatch: the ROM is probably encrypted.");
- return Loader::ResultStatus::ErrorEncrypted;
+ // DLC can have an ExeFS and a RomFS but no extended header
+ if (ncch_header.exefs_size) {
+ exefs_offset = ncch_header.exefs_offset * kBlockSize;
+ u32 exefs_size = ncch_header.exefs_size * kBlockSize;
+
+ LOG_DEBUG(Service_FS, "ExeFS offset: 0x%08X", exefs_offset);
+ LOG_DEBUG(Service_FS, "ExeFS size: 0x%08X", exefs_size);
+
+ file.Seek(exefs_offset + ncch_offset, SEEK_SET);
+ if (file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)) != sizeof(ExeFs_Header))
+ return Loader::ResultStatus::Error;
+
+ exefs_file = FileUtil::IOFile(filepath, "rb");
+ has_exefs = true;
}
- has_exheader = true;
+ if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0)
+ has_romfs = true;
}
- // DLC can have an ExeFS and a RomFS but no extended header
- if (ncch_header.exefs_size) {
- exefs_offset = ncch_header.exefs_offset * kBlockSize;
- u32 exefs_size = ncch_header.exefs_size * kBlockSize;
+ LoadOverrides();
- LOG_DEBUG(Service_FS, "ExeFS offset: 0x%08X", exefs_offset);
- LOG_DEBUG(Service_FS, "ExeFS size: 0x%08X", exefs_size);
+ // We need at least one of these or overrides, practically
+ if (!(has_exefs || has_romfs || is_tainted))
+ return Loader::ResultStatus::Error;
- file.Seek(exefs_offset + ncch_offset, SEEK_SET);
- if (file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)) != sizeof(ExeFs_Header))
- return Loader::ResultStatus::Error;
+ is_loaded = true;
+ return Loader::ResultStatus::Success;
+}
- has_exefs = true;
+Loader::ResultStatus NCCHContainer::LoadOverrides() {
+ // Check for split-off files, mark the archive as tainted if we will use them
+ std::string romfs_override = filepath + ".romfs";
+ if (FileUtil::Exists(romfs_override)) {
+ is_tainted = true;
}
- if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0)
- has_romfs = true;
+ // If we have a split-off exefs file/folder, it takes priority
+ std::string exefs_override = filepath + ".exefs";
+ std::string exefsdir_override = filepath + ".exefsdir/";
+ if (FileUtil::Exists(exefs_override)) {
+ exefs_file = FileUtil::IOFile(exefs_override, "rb");
+
+ if (exefs_file.ReadBytes(&exefs_header, sizeof(ExeFs_Header)) == sizeof(ExeFs_Header)) {
+ LOG_DEBUG(Service_FS, "Loading ExeFS section from %s", exefs_override.c_str());
+ exefs_offset = 0;
+ is_tainted = true;
+ has_exefs = true;
+ } else {
+ exefs_file = FileUtil::IOFile(filepath, "rb");
+ }
+ } else if (FileUtil::Exists(exefsdir_override) && FileUtil::IsDirectory(exefsdir_override)) {
+ is_tainted = true;
+ }
+
+ if (is_tainted)
+ LOG_WARNING(Service_FS,
+ "Loaded NCCH %s is tainted, application behavior may not be as expected!",
+ filepath.c_str());
- is_loaded = true;
return Loader::ResultStatus::Success;
}
Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) {
- if (!file.IsOpen())
- return Loader::ResultStatus::Error;
-
Loader::ResultStatus result = Load();
if (result != Loader::ResultStatus::Success)
return result;
- if (!has_exefs)
- return Loader::ResultStatus::ErrorNotUsed;
+ // Check if we have files that can drop-in and replace
+ result = LoadOverrideExeFSSection(name, buffer);
+ if (result == Loader::ResultStatus::Success || !has_exefs)
+ return result;
+
+ // If we don't have any separate files, we'll need a full ExeFS
+ if (!exefs_file.IsOpen())
+ return Loader::ResultStatus::Error;
LOG_DEBUG(Service_FS, "%d sections:", kMaxSections);
// Iterate through the ExeFs archive until we find a section with the specified name...
@@ -215,7 +266,7 @@ Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vect
s64 section_offset =
(section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset);
- file.Seek(section_offset, SEEK_SET);
+ exefs_file.Seek(section_offset, SEEK_SET);
if (strcmp(section.name, ".code") == 0 && is_compressed) {
// Section is compressed, read compressed .code section...
@@ -226,7 +277,7 @@ Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vect
return Loader::ResultStatus::ErrorMemoryAllocationFailed;
}
- if (file.ReadBytes(&temp_buffer[0], section.size) != section.size)
+ if (exefs_file.ReadBytes(&temp_buffer[0], section.size) != section.size)
return Loader::ResultStatus::Error;
// Decompress .code section...
@@ -237,7 +288,7 @@ Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vect
} else {
// Section is uncompressed...
buffer.resize(section.size);
- if (file.ReadBytes(&buffer[0], section.size) != section.size)
+ if (exefs_file.ReadBytes(&buffer[0], section.size) != section.size)
return Loader::ResultStatus::Error;
}
return Loader::ResultStatus::Success;
@@ -246,20 +297,56 @@ Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vect
return Loader::ResultStatus::ErrorNotUsed;
}
-Loader::ResultStatus NCCHContainer::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file,
- u64& offset, u64& size) {
- if (!file.IsOpen())
+Loader::ResultStatus NCCHContainer::LoadOverrideExeFSSection(const char* name,
+ std::vector<u8>& buffer) {
+ std::string override_name;
+
+ // Map our section name to the extracted equivalent
+ if (!strcmp(name, ".code"))
+ override_name = "code.bin";
+ else if (!strcmp(name, "icon"))
+ override_name = "code.bin";
+ else if (!strcmp(name, "banner"))
+ override_name = "banner.bnr";
+ else if (!strcmp(name, "logo"))
+ override_name = "logo.bcma.lz";
+ else
return Loader::ResultStatus::Error;
+ std::string section_override = filepath + ".exefsdir/" + override_name;
+ FileUtil::IOFile section_file(section_override, "rb");
+
+ if (section_file.IsOpen()) {
+ auto section_size = section_file.GetSize();
+ buffer.resize(section_size);
+
+ section_file.Seek(0, SEEK_SET);
+ if (section_file.ReadBytes(&buffer[0], section_size) == section_size) {
+ LOG_WARNING(Service_FS, "File %s overriding built-in ExeFS file",
+ section_override.c_str());
+ return Loader::ResultStatus::Success;
+ }
+ }
+ return Loader::ResultStatus::ErrorNotUsed;
+}
+
+Loader::ResultStatus NCCHContainer::ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file,
+ u64& offset, u64& size) {
Loader::ResultStatus result = Load();
if (result != Loader::ResultStatus::Success)
return result;
+ if (ReadOverrideRomFS(romfs_file, offset, size) == Loader::ResultStatus::Success)
+ return Loader::ResultStatus::Success;
+
if (!has_romfs) {
LOG_DEBUG(Service_FS, "RomFS requested from NCCH which has no RomFS");
return Loader::ResultStatus::ErrorNotUsed;
}
+ if (!file.IsOpen())
+ return Loader::ResultStatus::Error;
+
u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
@@ -280,11 +367,31 @@ Loader::ResultStatus NCCHContainer::ReadRomFS(std::shared_ptr<FileUtil::IOFile>&
return Loader::ResultStatus::Success;
}
+Loader::ResultStatus NCCHContainer::ReadOverrideRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file,
+ u64& offset, u64& size) {
+ // Check for RomFS overrides
+ std::string split_filepath = filepath + ".romfs";
+ if (FileUtil::Exists(split_filepath)) {
+ romfs_file = std::make_shared<FileUtil::IOFile>(split_filepath, "rb");
+ if (romfs_file->IsOpen()) {
+ LOG_WARNING(Service_FS, "File %s overriding built-in RomFS", split_filepath.c_str());
+ offset = 0;
+ size = romfs_file->GetSize();
+ return Loader::ResultStatus::Success;
+ }
+ }
+
+ return Loader::ResultStatus::ErrorNotUsed;
+}
+
Loader::ResultStatus NCCHContainer::ReadProgramId(u64_le& program_id) {
Loader::ResultStatus result = Load();
if (result != Loader::ResultStatus::Success)
return result;
+ if (!has_header)
+ return Loader::ResultStatus::ErrorNotUsed;
+
program_id = ncch_header.program_id;
return Loader::ResultStatus::Success;
}
diff --git a/src/core/file_sys/ncch_container.h b/src/core/file_sys/ncch_container.h
index 8af9032b4..2cc9d13dc 100644
--- a/src/core/file_sys/ncch_container.h
+++ b/src/core/file_sys/ncch_container.h
@@ -180,6 +180,13 @@ public:
Loader::ResultStatus Load();
/**
+ * Attempt to find overridden sections for the NCCH and mark the container as tainted
+ * if any are found.
+ * @return ResultStatus result of function
+ */
+ Loader::ResultStatus LoadOverrides();
+
+ /**
* Reads an application ExeFS section of an NCCH file (e.g. .code, .logo, etc.)
* @param name Name of section to read out of NCCH file
* @param buffer Vector to read data into
@@ -188,6 +195,15 @@ public:
Loader::ResultStatus LoadSectionExeFS(const char* name, std::vector<u8>& buffer);
/**
+ * Reads an application ExeFS section from external files instead of an NCCH file,
+ * (e.g. code.bin, logo.bcma.lz, icon.icn, banner.bnr)
+ * @param name Name of section to read from external files
+ * @param buffer Vector to read data into
+ * @return ResultStatus result of function
+ */
+ Loader::ResultStatus LoadOverrideExeFSSection(const char* name, std::vector<u8>& buffer);
+
+ /**
* Get the RomFS of the NCCH container
* Since the RomFS can be huge, we return a file reference instead of copying to a buffer
* @param romfs_file The file containing the RomFS
@@ -199,6 +215,17 @@ public:
u64& size);
/**
+ * Get the override RomFS of the NCCH container
+ * Since the RomFS can be huge, we return a file reference instead of copying to a buffer
+ * @param romfs_file The file containing the RomFS
+ * @param offset The offset the romfs begins on
+ * @param size The size of the romfs
+ * @return ResultStatus result of function
+ */
+ Loader::ResultStatus ReadOverrideRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file,
+ u64& offset, u64& size);
+
+ /**
* Get the Program ID of the NCCH container
* @return ResultStatus result of function
*/
@@ -227,10 +254,12 @@ public:
ExHeader_Header exheader_header;
private:
+ bool has_header = false;
bool has_exheader = false;
bool has_exefs = false;
bool has_romfs = false;
+ bool is_tainted = false; // Are there parts of this container being overridden?
bool is_loaded = false;
bool is_compressed = false;
@@ -239,6 +268,7 @@ private:
std::string filepath;
FileUtil::IOFile file;
+ FileUtil::IOFile exefs_file;
};
} // namespace FileSys
diff --git a/src/core/file_sys/title_metadata.cpp b/src/core/file_sys/title_metadata.cpp
new file mode 100644
index 000000000..1ef8840a0
--- /dev/null
+++ b/src/core/file_sys/title_metadata.cpp
@@ -0,0 +1,212 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cinttypes>
+#include <cryptopp/sha.h>
+#include "common/alignment.h"
+#include "common/file_util.h"
+#include "common/logging/log.h"
+#include "core/file_sys/title_metadata.h"
+#include "core/loader/loader.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+static u32 GetSignatureSize(u32 signature_type) {
+ switch (signature_type) {
+ case Rsa4096Sha1:
+ case Rsa4096Sha256:
+ return 0x200;
+
+ case Rsa2048Sha1:
+ case Rsa2048Sha256:
+ return 0x100;
+
+ case EllipticSha1:
+ case EcdsaSha256:
+ return 0x3C;
+ }
+}
+
+Loader::ResultStatus TitleMetadata::Load() {
+ FileUtil::IOFile file(filepath, "rb");
+ if (!file.IsOpen())
+ return Loader::ResultStatus::Error;
+
+ if (!file.ReadBytes(&signature_type, sizeof(u32_be)))
+ return Loader::ResultStatus::Error;
+
+ // Signature lengths are variable, and the body follows the signature
+ u32 signature_size = GetSignatureSize(signature_type);
+
+ tmd_signature.resize(signature_size);
+ if (!file.ReadBytes(&tmd_signature[0], signature_size))
+ return Loader::ResultStatus::Error;
+
+ // The TMD body start position is rounded to the nearest 0x40 after the signature
+ size_t body_start = Common::AlignUp(signature_size + sizeof(u32), 0x40);
+ file.Seek(body_start, SEEK_SET);
+
+ // Read our TMD body, then load the amount of ContentChunks specified
+ if (file.ReadBytes(&tmd_body, sizeof(TitleMetadata::Body)) != sizeof(TitleMetadata::Body))
+ return Loader::ResultStatus::Error;
+
+ for (u16 i = 0; i < tmd_body.content_count; i++) {
+ ContentChunk chunk;
+ if (file.ReadBytes(&chunk, sizeof(ContentChunk)) == sizeof(ContentChunk)) {
+ tmd_chunks.push_back(chunk);
+ } else {
+ LOG_ERROR(Service_FS, "Malformed TMD %s, failed to load content chunk index %u!",
+ filepath.c_str(), i);
+ return Loader::ResultStatus::ErrorInvalidFormat;
+ }
+ }
+
+ return Loader::ResultStatus::Success;
+}
+
+Loader::ResultStatus TitleMetadata::Save() {
+ FileUtil::IOFile file(filepath, "wb");
+ if (!file.IsOpen())
+ return Loader::ResultStatus::Error;
+
+ if (!file.WriteBytes(&signature_type, sizeof(u32_be)))
+ return Loader::ResultStatus::Error;
+
+ // Signature lengths are variable, and the body follows the signature
+ u32 signature_size = GetSignatureSize(signature_type);
+
+ if (!file.WriteBytes(tmd_signature.data(), signature_size))
+ return Loader::ResultStatus::Error;
+
+ // The TMD body start position is rounded to the nearest 0x40 after the signature
+ size_t body_start = Common::AlignUp(signature_size + sizeof(u32), 0x40);
+ file.Seek(body_start, SEEK_SET);
+
+ // Update our TMD body values and hashes
+ tmd_body.content_count = static_cast<u16>(tmd_chunks.size());
+
+ // TODO(shinyquagsire23): Do TMDs with more than one contentinfo exist?
+ // For now we'll just adjust the first index to hold all content chunks
+ // and ensure that no further content info data exists.
+ tmd_body.contentinfo = {};
+ tmd_body.contentinfo[0].index = 0;
+ tmd_body.contentinfo[0].command_count = static_cast<u16>(tmd_chunks.size());
+
+ CryptoPP::SHA256 chunk_hash;
+ for (u16 i = 0; i < tmd_body.content_count; i++) {
+ chunk_hash.Update(reinterpret_cast<u8*>(&tmd_chunks[i]), sizeof(ContentChunk));
+ }
+ chunk_hash.Final(tmd_body.contentinfo[0].hash.data());
+
+ CryptoPP::SHA256 contentinfo_hash;
+ for (size_t i = 0; i < tmd_body.contentinfo.size(); i++) {
+ chunk_hash.Update(reinterpret_cast<u8*>(&tmd_body.contentinfo[i]), sizeof(ContentInfo));
+ }
+ chunk_hash.Final(tmd_body.contentinfo_hash.data());
+
+ // Write our TMD body, then write each of our ContentChunks
+ if (file.WriteBytes(&tmd_body, sizeof(TitleMetadata::Body)) != sizeof(TitleMetadata::Body))
+ return Loader::ResultStatus::Error;
+
+ for (u16 i = 0; i < tmd_body.content_count; i++) {
+ ContentChunk chunk = tmd_chunks[i];
+ if (file.WriteBytes(&chunk, sizeof(ContentChunk)) != sizeof(ContentChunk))
+ return Loader::ResultStatus::Error;
+ }
+
+ return Loader::ResultStatus::Success;
+}
+
+u64 TitleMetadata::GetTitleID() const {
+ return tmd_body.title_id;
+}
+
+u32 TitleMetadata::GetTitleType() const {
+ return tmd_body.title_type;
+}
+
+u16 TitleMetadata::GetTitleVersion() const {
+ return tmd_body.title_version;
+}
+
+u64 TitleMetadata::GetSystemVersion() const {
+ return tmd_body.system_version;
+}
+
+size_t TitleMetadata::GetContentCount() const {
+ return tmd_chunks.size();
+}
+
+u32 TitleMetadata::GetBootContentID() const {
+ return tmd_chunks[TMDContentIndex::Main].id;
+}
+
+u32 TitleMetadata::GetManualContentID() const {
+ return tmd_chunks[TMDContentIndex::Manual].id;
+}
+
+u32 TitleMetadata::GetDLPContentID() const {
+ return tmd_chunks[TMDContentIndex::DLP].id;
+}
+
+void TitleMetadata::SetTitleID(u64 title_id) {
+ tmd_body.title_id = title_id;
+}
+
+void TitleMetadata::SetTitleType(u32 type) {
+ tmd_body.title_type = type;
+}
+
+void TitleMetadata::SetTitleVersion(u16 version) {
+ tmd_body.title_version = version;
+}
+
+void TitleMetadata::SetSystemVersion(u64 version) {
+ tmd_body.system_version = version;
+}
+
+void TitleMetadata::AddContentChunk(const ContentChunk& chunk) {
+ tmd_chunks.push_back(chunk);
+}
+
+void TitleMetadata::Print() const {
+ LOG_DEBUG(Service_FS, "%s - %u chunks", filepath.c_str(),
+ static_cast<u32>(tmd_body.content_count));
+
+ // Content info describes ranges of content chunks
+ LOG_DEBUG(Service_FS, "Content info:");
+ for (size_t i = 0; i < tmd_body.contentinfo.size(); i++) {
+ if (tmd_body.contentinfo[i].command_count == 0)
+ break;
+
+ LOG_DEBUG(Service_FS, " Index %04X, Command Count %04X",
+ static_cast<u32>(tmd_body.contentinfo[i].index),
+ static_cast<u32>(tmd_body.contentinfo[i].command_count));
+ }
+
+ // For each content info, print their content chunk range
+ for (size_t i = 0; i < tmd_body.contentinfo.size(); i++) {
+ u16 index = static_cast<u16>(tmd_body.contentinfo[i].index);
+ u16 count = static_cast<u16>(tmd_body.contentinfo[i].command_count);
+
+ if (count == 0)
+ continue;
+
+ LOG_DEBUG(Service_FS, "Content chunks for content info index %zu:", i);
+ for (u16 j = index; j < index + count; j++) {
+ // Don't attempt to print content we don't have
+ if (j > tmd_body.content_count)
+ break;
+
+ const ContentChunk& chunk = tmd_chunks[j];
+ LOG_DEBUG(Service_FS, " ID %08X, Index %04X, Type %04x, Size %016" PRIX64,
+ static_cast<u32>(chunk.id), static_cast<u32>(chunk.index),
+ static_cast<u32>(chunk.type), static_cast<u64>(chunk.size));
+ }
+ }
+}
+} // namespace FileSys
diff --git a/src/core/file_sys/title_metadata.h b/src/core/file_sys/title_metadata.h
new file mode 100644
index 000000000..1fc157bf3
--- /dev/null
+++ b/src/core/file_sys/title_metadata.h
@@ -0,0 +1,125 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include "common/common_types.h"
+#include "common/swap.h"
+
+namespace Loader {
+enum class ResultStatus;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+// FileSys namespace
+
+namespace FileSys {
+
+enum TMDSignatureType : u32 {
+ Rsa4096Sha1 = 0x10000,
+ Rsa2048Sha1 = 0x10001,
+ EllipticSha1 = 0x10002,
+ Rsa4096Sha256 = 0x10003,
+ Rsa2048Sha256 = 0x10004,
+ EcdsaSha256 = 0x10005
+};
+
+enum TMDContentTypeFlag : u16 {
+ Encrypted = 1 << 1,
+ Disc = 1 << 2,
+ CFM = 1 << 3,
+ Optional = 1 << 14,
+ Shared = 1 << 15
+};
+
+/**
+ * Helper which implements an interface to read and write Title Metadata (TMD) files.
+ * If a file path is provided and the file exists, it can be parsed and used, otherwise
+ * it must be created. The TMD file can then be interpreted, modified and/or saved.
+ */
+class TitleMetadata {
+public:
+ struct ContentChunk {
+ u32_be id;
+ u16_be index;
+ u16_be type;
+ u64_be size;
+ std::array<u8, 0x20> hash;
+ };
+
+ static_assert(sizeof(ContentChunk) == 0x30, "TMD ContentChunk structure size is wrong");
+
+ struct ContentInfo {
+ u16_be index;
+ u16_be command_count;
+ std::array<u8, 0x20> hash;
+ };
+
+ static_assert(sizeof(ContentInfo) == 0x24, "TMD ContentInfo structure size is wrong");
+
+#pragma pack(push, 1)
+
+ struct Body {
+ std::array<u8, 0x40> issuer;
+ u8 version;
+ u8 ca_crl_version;
+ u8 signer_crl_version;
+ u8 reserved;
+ u64_be system_version;
+ u64_be title_id;
+ u32_be title_type;
+ u16_be group_id;
+ u32_be savedata_size;
+ u32_be srl_private_savedata_size;
+ std::array<u8, 4> reserved_2;
+ u8 srl_flag;
+ std::array<u8, 0x31> reserved_3;
+ u32_be access_rights;
+ u16_be title_version;
+ u16_be content_count;
+ u16_be boot_content;
+ std::array<u8, 2> reserved_4;
+ std::array<u8, 0x20> contentinfo_hash;
+ std::array<ContentInfo, 64> contentinfo;
+ };
+
+ static_assert(sizeof(Body) == 0x9C4, "TMD body structure size is wrong");
+
+#pragma pack(pop)
+
+ explicit TitleMetadata(std::string& path) : filepath(std::move(path)) {}
+ Loader::ResultStatus Load();
+ Loader::ResultStatus Save();
+
+ u64 GetTitleID() const;
+ u32 GetTitleType() const;
+ u16 GetTitleVersion() const;
+ u64 GetSystemVersion() const;
+ size_t GetContentCount() const;
+ u32 GetBootContentID() const;
+ u32 GetManualContentID() const;
+ u32 GetDLPContentID() const;
+
+ void SetTitleID(u64 title_id);
+ void SetTitleType(u32 type);
+ void SetTitleVersion(u16 version);
+ void SetSystemVersion(u64 version);
+ void AddContentChunk(const ContentChunk& chunk);
+
+ void Print() const;
+
+private:
+ enum TMDContentIndex { Main = 0, Manual = 1, DLP = 2 };
+
+ Body tmd_body;
+ u32_be signature_type;
+ std::vector<u8> tmd_signature;
+ std::vector<ContentChunk> tmd_chunks;
+
+ std::string filepath;
+};
+
+} // namespace FileSys
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 10:56:34 +0100