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authorZach Hilman <zachhilman@gmail.com>2018-07-30 02:47:33 +0200
committerZach Hilman <zachhilman@gmail.com>2018-08-01 06:16:54 +0200
commita9c921a41dec63f76f80df1f0d5dc3be40fa80de (patch)
tree51e17454ad3e03e68aff05511e76681e8d5a93eb
parentAdd missing includes and use const where applicable (diff)
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-rw-r--r--src/core/file_sys/card_image.cpp1
-rw-r--r--src/core/file_sys/content_archive.cpp45
-rw-r--r--src/core/file_sys/content_archive.h4
-rw-r--r--src/core/loader/xci.cpp4
4 files changed, 37 insertions, 17 deletions
diff --git a/src/core/file_sys/card_image.cpp b/src/core/file_sys/card_image.cpp
index c69812455..395eea8ae 100644
--- a/src/core/file_sys/card_image.cpp
+++ b/src/core/file_sys/card_image.cpp
@@ -45,6 +45,7 @@ XCI::XCI(VirtualFile file_) : file(std::move(file_)), partitions(0x4) {
status = result;
return;
}
+
result = AddNCAFromPartition(XCIPartition::Update);
if (result != Loader::ResultStatus::Success) {
status = result;
diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
index 9eceaa4c4..cb59c0a2b 100644
--- a/src/core/file_sys/content_archive.cpp
+++ b/src/core/file_sys/content_archive.cpp
@@ -4,7 +4,7 @@
#include <algorithm>
#include <utility>
-
+#include <boost/optional.hpp>
#include "common/logging/log.h"
#include "core/crypto/aes_util.h"
#include "core/crypto/ctr_encryption_layer.h"
@@ -76,13 +76,16 @@ bool IsValidNCA(const NCAHeader& header) {
return header.magic == Common::MakeMagic('N', 'C', 'A', '3');
}
-Core::Crypto::Key128 NCA::GetKeyAreaKey(NCASectionCryptoType type) const {
+boost::optional<Core::Crypto::Key128> NCA::GetKeyAreaKey(NCASectionCryptoType type) const {
u8 master_key_id = header.crypto_type;
if (header.crypto_type_2 > master_key_id)
master_key_id = header.crypto_type_2;
if (master_key_id > 0)
--master_key_id;
+ if (!keys.HasKey(Core::Crypto::S128KeyType::KeyArea, master_key_id, header.key_index))
+ return boost::none;
+
std::vector<u8> key_area(header.key_area.begin(), header.key_area.end());
Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(
keys.GetKey(Core::Crypto::S128KeyType::KeyArea, master_key_id, header.key_index),
@@ -116,13 +119,16 @@ VirtualFile NCA::Decrypt(NCASectionHeader header, VirtualFile in, u64 starting_o
case NCASectionCryptoType::CTR:
LOG_DEBUG(Crypto, "called with mode=CTR, starting_offset={:016X}", starting_offset);
{
+ const auto key = GetKeyAreaKey(NCASectionCryptoType::CTR);
+ if (key == boost::none)
+ return nullptr;
auto out = std::make_shared<Core::Crypto::CTREncryptionLayer>(
- std::move(in), GetKeyAreaKey(NCASectionCryptoType::CTR), starting_offset);
+ std::move(in), key.value(), starting_offset);
std::vector<u8> iv(16);
for (u8 i = 0; i < 8; ++i)
iv[i] = header.raw.section_ctr[0x8 - i - 1];
out->SetIV(iv);
- return out;
+ return std::static_pointer_cast<VfsFile>(out);
}
case NCASectionCryptoType::XTS:
// TODO(DarkLordZach): Implement XTSEncryptionLayer and title key encryption.
@@ -149,7 +155,10 @@ NCA::NCA(VirtualFile file_) : file(std::move(file_)) {
header = dec_header;
encrypted = true;
} else {
- status = Loader::ResultStatus::ErrorInvalidFormat;
+ if (!keys.HasKey(Core::Crypto::S256KeyType::Header))
+ status = Loader::ResultStatus::ErrorEncrypted;
+ else
+ status = Loader::ResultStatus::ErrorInvalidFormat;
return;
}
}
@@ -179,23 +188,29 @@ NCA::NCA(VirtualFile file_) : file(std::move(file_)) {
header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER +
section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
const size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
- files.emplace_back(
+ const auto dec =
Decrypt(section, std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset),
- romfs_offset));
- romfs = files.back();
+ romfs_offset);
+ if (dec != nullptr) {
+ files.emplace_back();
+ romfs = files.back();
+ }
} else if (section.raw.header.filesystem_type == NCASectionFilesystemType::PFS0) {
u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
MEDIA_OFFSET_MULTIPLIER) +
section.pfs0.pfs0_header_offset;
u64 size = MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset -
header.section_tables[i].media_offset);
- auto npfs = std::make_shared<PartitionFilesystem>(
- Decrypt(section, std::make_shared<OffsetVfsFile>(file, size, offset), offset));
-
- if (npfs->GetStatus() == Loader::ResultStatus::Success) {
- dirs.emplace_back(npfs);
- if (IsDirectoryExeFS(dirs.back()))
- exefs = dirs.back();
+ const auto dec =
+ Decrypt(section, std::make_shared<OffsetVfsFile>(file, size, offset), offset);
+ if (dec != nullptr) {
+ auto npfs = std::make_shared<PartitionFilesystem>(dec);
+
+ if (npfs->GetStatus() == Loader::ResultStatus::Success) {
+ dirs.emplace_back(npfs);
+ if (IsDirectoryExeFS(dirs.back()))
+ exefs = dirs.back();
+ }
}
}
}
diff --git a/src/core/file_sys/content_archive.h b/src/core/file_sys/content_archive.h
index e68ab0235..6492163b5 100644
--- a/src/core/file_sys/content_archive.h
+++ b/src/core/file_sys/content_archive.h
@@ -8,7 +8,7 @@
#include <memory>
#include <string>
#include <vector>
-
+#include <boost/optional.hpp>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/swap.h"
@@ -95,7 +95,7 @@ protected:
bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
private:
- Core::Crypto::Key128 GetKeyAreaKey(NCASectionCryptoType type) const;
+ boost::optional<Core::Crypto::Key128> GetKeyAreaKey(NCASectionCryptoType type) const;
VirtualFile Decrypt(NCASectionHeader header, VirtualFile in, u64 starting_offset) const;
std::vector<VirtualDir> dirs;
diff --git a/src/core/loader/xci.cpp b/src/core/loader/xci.cpp
index b4de5bd16..74940fb83 100644
--- a/src/core/loader/xci.cpp
+++ b/src/core/loader/xci.cpp
@@ -48,6 +48,10 @@ ResultStatus AppLoader_XCI::Load(Kernel::SharedPtr<Kernel::Process>& process) {
return ResultStatus::ErrorAlreadyLoaded;
}
+ if (xci->GetNCAFileByType(FileSys::NCAContentType::Program) == nullptr) {
+ return ResultStatus::ErrorEncrypted;
+ }
+
auto result = nca_loader->Load(process);
if (result != ResultStatus::Success)
return result;