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Crypto: read and log PSP and PSVita headers

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This commit is contained in:
Megamouse 2020-04-18 10:39:09 +02:00
parent 3b9dc29781
commit 3a6bda4d93
2 changed files with 36 additions and 9 deletions
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36
rpcs3/Crypto/unpkg.cpp
View File

@ -85,11 +85,11 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
if (archive_read(&header, sizeof(header)) != sizeof(header))
{
pkg_log.error("PKG file is too short!");
pkg_log.error("Reading PKG header: file is too short!");
return false;
}
pkg_log.notice("Header: pkg_magic = 0x%x = %d", header.pkg_magic, header.pkg_magic);
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);
@ -103,6 +103,32 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
pkg_log.notice("Header: qa_digest = 0x%x 0x%x", header.qa_digest[0], header.qa_digest[1]);
//pkg_log.notice("Header: klicensee = 0x%x = %d", header.klicensee, header.klicensee);
// Get extended PKG information for PSP or PSVita
if (header.pkg_platform == PKG_PLATFORM_TYPE_PSP_PSVITA)
{
PKGExtHeader ext_header;
archive_seek(PKG_HEADER_SIZE);
if (archive_read(&ext_header, sizeof(ext_header)) != sizeof(ext_header))
{
pkg_log.error("Reading extended PKG header: file is too short!");
return false;
}
pkg_log.notice("Extended header: magic = 0x%x = \"%s\"", +ext_header.magic, std::string(reinterpret_cast<const char*>(&ext_header.magic), 4));
pkg_log.notice("Extended header: unknown_1 = 0x%x = %d", ext_header.unknown_1, ext_header.unknown_1);
pkg_log.notice("Extended header: ext_hdr_size = 0x%x = %d", ext_header.ext_hdr_size, ext_header.ext_hdr_size);
pkg_log.notice("Extended header: ext_data_size = 0x%x = %d", ext_header.ext_data_size, ext_header.ext_data_size);
pkg_log.notice("Extended header: main_and_ext_headers_hmac_offset = 0x%x = %d", ext_header.main_and_ext_headers_hmac_offset, ext_header.main_and_ext_headers_hmac_offset);
pkg_log.notice("Extended header: metadata_header_hmac_offset = 0x%x = %d", ext_header.metadata_header_hmac_offset, ext_header.metadata_header_hmac_offset);
pkg_log.notice("Extended header: tail_offset = 0x%x = %d", ext_header.tail_offset, ext_header.tail_offset);
//pkg_log.notice("Extended header: padding1 = 0x%x = %d", ext_header.padding1, ext_header.padding1);
pkg_log.notice("Extended header: pkg_key_id = 0x%x = %d", ext_header.pkg_key_id, ext_header.pkg_key_id);
pkg_log.notice("Extended header: full_header_hmac_offset = 0x%x = %d", ext_header.full_header_hmac_offset, ext_header.full_header_hmac_offset);
//pkg_log.notice("Extended header: padding2 = 0x%x = %d", ext_header.padding2, ext_header.padding2);
}
if (header.pkg_magic != "\x7FPKG"_u32)
{
pkg_log.error("Not a PKG file!");
@ -123,7 +149,7 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
switch (const u16 platform = header.pkg_platform)
{
case PKG_PLATFORM_TYPE_PS3: break;
case PKG_PLATFORM_TYPE_PSP: break;
case PKG_PLATFORM_TYPE_PSP_PSVITA: break;
default:
{
pkg_log.error("Unknown PKG platform (0x%x)", platform);
@ -432,7 +458,7 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
std::array<uchar, 16> dec_key;
if (header.pkg_platform == PKG_PLATFORM_TYPE_PSP && metadata.content_type >= 0x15 && metadata.content_type <= 0x17)
if (header.pkg_platform == PKG_PLATFORM_TYPE_PSP_PSVITA && metadata.content_type >= 0x15 && metadata.content_type <= 0x17)
{
// PSVita
@ -448,7 +474,7 @@ bool pkg_install(const std::string& path, atomic_t<double>& sync)
else
{
std::memcpy(dec_key.data(), PKG_AES_KEY, dec_key.size());
decrypt(0, header.file_count * sizeof(PKGEntry), header.pkg_platform == PKG_PLATFORM_TYPE_PSP ? PKG_AES_KEY2 : dec_key.data());
decrypt(0, header.file_count * sizeof(PKGEntry), header.pkg_platform == PKG_PLATFORM_TYPE_PSP_PSVITA ? PKG_AES_KEY2 : dec_key.data());
}
size_t num_failures = 0;

9
rpcs3/Crypto/unpkg.h
View File

@ -15,7 +15,7 @@ enum : u16
PKG_RELEASE_TYPE_DEBUG = 0x0000,
PKG_PLATFORM_TYPE_PS3 = 0x0001,
PKG_PLATFORM_TYPE_PSP = 0x0002,
PKG_PLATFORM_TYPE_PSP_PSVITA = 0x0002,
};
enum : u32
@ -35,7 +35,7 @@ enum : u32
// Structs
struct PKGHeader
{
nse_t<u32> pkg_magic; // Magic (0x7f504b47)
nse_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;
@ -48,12 +48,13 @@ struct PKGHeader
char title_id[48]; // Title ID
be_t<u64> qa_digest[2]; // This should be the hash of "files + attribs"
be_t<u128> klicensee; // Nonce
// + some stuff
};
// Extended header in PSP and PSVita packages
struct PkgExtHeader
struct PKGExtHeader
{
be_t<u32> magic; // 0x7F657874 (".ext")
nse_t<u32> magic; // 0x7F657874 (" ext")
be_t<u32> unknown_1; // Maybe version. always 1
be_t<u32> ext_hdr_size; // Extended header size. ex: 0x40
be_t<u32> ext_data_size; // ex: 0x180