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Crypto: fix metadata variable names

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header_size was just wrong, on PS3 games it just happens to match the meta offset, which is half of data_offset
PS3: meta_offset + meta_size = data_offset
PSP: meta_offset + meta_size = metadata_header_hmac_offset
PSP: metadata_header_hmac_offset + ext_data_size = data_offset
This commit is contained in:
Megamouse 2020-04-18 13:08:17 +02:00
parent e4b6de409a
commit 1762324702
2 changed files with 20 additions and 16 deletions
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30
rpcs3/Crypto/unpkg.cpp
View File

@ -3,6 +3,7 @@
#include "aes.h"
#include "sha1.h"
#include "key_vault.h"
#include "Utilities/StrUtil.h"
#include "Utilities/StrFmt.h"
#include "Emu/System.h"
#include "Emu/VFS.h"
@ -92,9 +93,9 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
pkg_log.notice("Header: pkg_magic = 0x%x = \"%s\"", +header.pkg_magic, std::string(reinterpret_cast<const char*>(&header.pkg_magic), 4));
pkg_log.notice("Header: pkg_type = 0x%x = %d", header.pkg_type, header.pkg_type);
pkg_log.notice("Header: pkg_platform = 0x%x = %d", header.pkg_platform, header.pkg_platform);
pkg_log.notice("Header: pkg_info_off = 0x%x = %d", header.pkg_info_off, header.pkg_info_off);
pkg_log.notice("Header: pkg_info_num = 0x%x = %d", header.pkg_info_num, header.pkg_info_num);
pkg_log.notice("Header: header_size = 0x%x = %d", header.header_size, header.header_size);
pkg_log.notice("Header: meta_offset = 0x%x = %d", header.meta_offset, header.meta_offset);
pkg_log.notice("Header: meta_count = 0x%x = %d", header.meta_count, header.meta_count);
pkg_log.notice("Header: meta_size = 0x%x = %d", header.meta_size, header.meta_size);
pkg_log.notice("Header: file_count = 0x%x = %d", header.file_count, header.file_count);
pkg_log.notice("Header: pkg_size = 0x%x = %d", header.pkg_size, header.pkg_size);
pkg_log.notice("Header: data_offset = 0x%x = %d", header.data_offset, header.data_offset);
@ -191,16 +192,18 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
}
PKGMetaData metadata;
std::string install_id;
std::string install_dir;
// Read title ID and use it as an installation directory
install_id.resize(9);
install_dir.resize(9);
archive_seek(55);
archive_read(&install_id.front(), install_id.size());
archive_read(&install_dir.front(), install_dir.size());
archive_seek(header.pkg_info_off);
// Read package metadata
for (u32 i = 0; i < header.pkg_info_num; i++)
archive_seek(header.meta_offset);
for (u32 i = 0; i < header.meta_count; i++)
{
struct packet_T
{
@ -292,6 +295,7 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
if (packet.size == metadata.title_id.size())
{
archive_read(&metadata.title_id, metadata.title_id.size());
metadata.title_id = fmt::trim(metadata.title_id);
pkg_log.notice("Metadata: Title ID = %s", metadata.title_id);
continue;
}
@ -330,10 +334,10 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
if (packet.size > 8)
{
// Read an actual installation directory (DLC)
install_id.resize(packet.size);
archive_read(&install_id.front(), packet.size);
install_id = install_id.c_str() + 8;
metadata.install_dir = install_id;
install_dir.resize(packet.size);
archive_read(&install_dir.front(), packet.size);
install_dir = install_dir.c_str() + 8;
metadata.install_dir = install_dir;
pkg_log.notice("Metadata: Install Dir = %s", metadata.install_dir);
continue;
}
@ -375,7 +379,7 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
}
// Get full path and create the directory
const std::string dir = Emulator::GetHddDir() + "game/" + install_id + '/';
const std::string dir = Emulator::GetHddDir() + "game/" + install_dir + '/';
// If false, an existing directory is being overwritten: cannot cancel the operation
const bool was_null = !fs::is_dir(dir);

6
rpcs3/Crypto/unpkg.h
View File

@ -38,9 +38,9 @@ struct PKGHeader
le_t<u32> pkg_magic; // Magic (0x7f504b47) (" PKG")
be_t<u16> pkg_type; // Release type (Retail:0x8000, Debug:0x0000)
be_t<u16> pkg_platform; // Platform type (PS3:0x0001, PSP:0x0002)
be_t<u32> pkg_info_off;
be_t<u32> pkg_info_num;
be_t<u32> header_size; // Header size
be_t<u32> meta_offset; // Metadata offset. Usually 0xC0 for PS3, usually 0x280 for PSP and PSVita
be_t<u32> meta_count; // Metadata item count
be_t<u32> meta_size; // Metadata size.
be_t<u32> file_count; // Number of files
be_t<u64> pkg_size; // PKG size in bytes
be_t<u64> data_offset; // Encrypted data offset