[nx/ncatool] Update SacEntry and NcaHeader to inherit from ISerialiseableBinary. ncatool is updated accordingly.

lib/nx/NcaHeader.cpp

@@ -14,13 +14,13 @@ void NcaHeader::exportBinary()
 
 	// TODO: properly reconstruct NCA layout? atm in hands of user
 
-	for (size_t i = 0; i < mSections.size(); i++)
+	for (size_t i = 0; i < mSections.getSize(); i++)
 	{
 		// determine section index
-		u8 section = mSections.size() - 1 - i;
+		u8 section = mSections.getSize() - 1 - i;
 
-		hdr->section(section).set_start(mSections[i].start_blk);
+		hdr->section(section).set_start(sizeToBlockNum(mSections[i].offset));
-		hdr->section(section).set_end(mSections[i].end_blk);
+		hdr->section(section).set_end(sizeToBlockNum(mSections[i].offset) + sizeToBlockNum(mSections[i].size));
 		hdr->section(section).set_key_type(mSections[i].key_type);
 		hdr->section_hash(section) = mSections[i].hash;
 	}
@@ -59,12 +59,12 @@ void NcaHeader::importBinary(const u8 * bytes)
 		if (hdr->section(section).start() == 0 && hdr->section(section).end() == 0) continue;
 		
 		// add high level struct
-		mSections.push_back({ hdr->section(section).start(), hdr->section(section).end(), blockNumToSize(hdr->section(section).start()), blockNumToSize(hdr->section(section).end()- hdr->section(section).start()), hdr->section(section).key_type(), hdr->section_hash(section) });
+		mSections.addElement({ blockNumToSize(hdr->section(section).start()), blockNumToSize(hdr->section(section).end() - hdr->section(section).start()), hdr->section(section).key_type(), hdr->section_hash(section) });
 	}
 
 	for (size_t i = 0; i < kAesKeyNum; i++)
 	{
-		mAesKeys.push_back(hdr->aes_key(i));
+		mAesKeys.addElement(hdr->aes_key(i));
 	}
 }
 
@@ -102,33 +102,33 @@ u32 NcaHeader::getUnk() const
 	return mUnk0;
 }
 
-const std::vector<NcaHeader::sSection>& NcaHeader::getSections() const
+const fnd::List<NcaHeader::sSection>& NcaHeader::getSections() const
 {
 	return mSections;
 }
 
 void NcaHeader::addSection(const sSection & section)
 {
-	if (mSections.size() >= kSectionNum)
+	if (mSections.getSize() >= kSectionNum)
 	{
 		throw fnd::Exception(kModuleName, "Too many NCA sections");
 	}
-	mSections.push_back(section);
+	mSections.addElement(section);
 }
 
-const std::vector<crypto::aes::sAes128Key>& NcaHeader::getAesKeys() const
+const fnd::List<crypto::aes::sAes128Key>& NcaHeader::getAesKeys() const
 {
 	return mAesKeys;
 }
 
 void NcaHeader::addKey(const crypto::aes::sAes128Key & key)
 {
-	if (mAesKeys.size() >= kAesKeyNum)
+	if (mAesKeys.getSize() >= kAesKeyNum)
 	{
 		throw fnd::Exception(kModuleName, "Too many NCA aes keys");
 	}
 
-	mAesKeys.push_back(key);
+	mAesKeys.addElement(key);
 }
 
 void NcaHeader::clearVariables()
@@ -151,6 +151,34 @@ u32 NcaHeader::sizeToBlockNum(u64 real_size) const
 	return align(real_size, mBlockSize)/mBlockSize;
 }
 
+bool NcaHeader::isEqual(const NcaHeader & other) const
+{
+	return (mBlockSize == other.mBlockSize) \
+		&& (mNcaSize == other.mNcaSize) \
+		&& (mProgramId == other.mProgramId) \
+		&& (mUnk0 == other.mUnk0) \
+		&& (mSections == other.mSections) \
+		&& (mAesKeys == other.mAesKeys);
+}
+
+void NcaHeader::copyFrom(const NcaHeader & other)
+{
+	if (other.getSize())
+	{
+		importBinary(other.getBytes(), other.getSize());
+	}
+	else
+	{
+		this->mBinaryBlob.clear();
+		mBlockSize = other.mBlockSize;
+		mNcaSize = other.mNcaSize;
+		mProgramId = other.mProgramId;
+		mUnk0 = other.mUnk0;
+		mSections = other.mSections;
+		mAesKeys = other.mAesKeys;
+	}
+}
+
 NcaHeader::NcaHeader()
 {
 	clearVariables();
@@ -158,7 +186,7 @@ NcaHeader::NcaHeader()
 
 NcaHeader::NcaHeader(const NcaHeader & other)
 {
-	importBinary(other.getBytes());
+	copyFrom(other);
 }
 
 NcaHeader::NcaHeader(const u8 * bytes)
@@ -166,9 +194,14 @@ NcaHeader::NcaHeader(const u8 * bytes)
 	importBinary(bytes);
 }
 
-bool NcaHeader::operator==(const NcaHeader & other)
+bool NcaHeader::operator==(const NcaHeader & other) const
 {
-	return memcmp(this->getBytes(), other.getBytes(), this->getSize()) == 0;
+	return isEqual(other);
+}
+
+bool NcaHeader::operator!=(const NcaHeader & other) const
+{
+	return !isEqual(other);
 }
 
 void NcaHeader::operator=(const NcaHeader & other)

lib/nx/NcaHeader.h

@@ -1,8 +1,8 @@
 #pragma once
-#include <vector>
 #include <string>
 #include <fnd/types.h>
 #include <fnd/memory_blob.h>
+#include <fnd/List.h>
 #include <crypto/aes.h>
 #include <crypto/sha.h>
 #include <nx/ISerialiseableBinary.h>
@@ -12,12 +12,33 @@ class NcaHeader : public ISerialiseableBinary
 public:
 	struct sSection
 	{
-		u32 start_blk;
-		u32 end_blk;
 		u64 offset;
 		u64 size;
 		u8 key_type;
 		crypto::sha::sSha256Hash hash;
+
+		const sSection& operator=(const sSection& other)
+		{
+			offset = other.offset;
+			size = other.size;
+			key_type = other.key_type;
+			hash = other.hash;
+
+			return *this;
+		}
+
+		bool operator==(const sSection& other) const
+		{
+			return (offset == other.offset) \
+				&& (size == other.size) \
+				&& (key_type == other.key_type) \
+				&& (hash == other.hash);
+		}
+
+		bool operator!=(const sSection& other) const
+		{
+			return operator==(other);
+		}
 	};
 
 	static const size_t kDefaultBlockSize = 0x200;
@@ -26,7 +47,8 @@ public:
 	NcaHeader(const NcaHeader& other);
 	NcaHeader(const u8* bytes);
 
-	bool operator==(const NcaHeader& other);
+	bool operator==(const NcaHeader& other) const;
+	bool operator!=(const NcaHeader& other) const;
 	void operator=(const NcaHeader& other);
 
 	// to be used after export
@@ -44,9 +66,9 @@ public:
 	u64 getProgramId() const;
 	void setProgramId(u64 program_id);
 	u32 getUnk() const;
-	const std::vector<sSection>& getSections() const;
+	const fnd::List<sSection>& getSections() const;
 	void addSection(const sSection& section);
-	const std::vector<crypto::aes::sAes128Key>& getAesKeys() const;
+	const fnd::List<crypto::aes::sAes128Key>& getAesKeys() const;
 	void addKey(const crypto::aes::sAes128Key& key);
 
 private:
@@ -122,10 +144,12 @@ private:
 	u64 mNcaSize;
 	u64 mProgramId;
 	u32 mUnk0;
-	std::vector<sSection> mSections;
+	fnd::List<sSection> mSections;
-	std::vector<crypto::aes::sAes128Key> mAesKeys;
+	fnd::List<crypto::aes::sAes128Key> mAesKeys;
 
 	void clearVariables();
 	u64 blockNumToSize(u32 block_num) const;
 	u32 sizeToBlockNum(u64 real_size) const;
+	bool isEqual(const NcaHeader& other) const;
+	void copyFrom(const NcaHeader& other);
 };

lib/nx/SacEntry.cpp

@@ -6,14 +6,31 @@ SacEntry::SacEntry() :
 {
 }
 
-SacEntry::SacEntry(const SacEntry & other)
+SacEntry::SacEntry(const std::string & name, bool isServer) :
+	mIsServer(isServer),
+	mName(name)
 {
-	importBinary(other.getBytes(), other.getSize());
+	exportBinary();
 }
 
-SacEntry::SacEntry(const u8 * bytes)
+SacEntry::SacEntry(const SacEntry & other)
 {
-	importBinary(bytes);
+	copyFrom(other);
+}
+
+bool SacEntry::operator==(const SacEntry & other) const
+{
+	return isEqual(other);
+}
+
+bool SacEntry::operator!=(const SacEntry & other) const
+{
+	return !isEqual(other);
+}
+
+void SacEntry::operator=(const SacEntry & other)
+{
+	copyFrom(other);
 }
 
 const u8 * SacEntry::getBytes() const
@@ -47,9 +64,20 @@ void SacEntry::exportBinary()
 }
 
 void SacEntry::importBinary(const u8 * bytes)
+{
+	throw fnd::Exception(kModuleName, "Unsupported operation. importBinary(const u8* bytes) is not supported for variable size structures.");
+}
+
+void SacEntry::importBinary(const u8 * bytes, size_t len)
 {
 	bool isServer = (bytes[0] & SAC_IS_SERVER) == SAC_IS_SERVER;
 	size_t nameLen = (bytes[0] & SAC_NAME_LEN_MASK);
+
+	if (nameLen+1 > len)
+	{
+		throw fnd::Exception(kModuleName, "SAC entry is too small");
+	}
+
 	if (nameLen == 0)
 	{
 		throw fnd::Exception(kModuleName, "SAC entry has no service name");
@@ -66,15 +94,6 @@ void SacEntry::importBinary(const u8 * bytes)
 	mName = std::string((const char*)(mBinaryBlob.getBytes() + 1), nameLen);
 }
 
-void SacEntry::importBinary(const u8 * bytes, size_t len)
-{
-	importBinary(bytes);
-	if (getSize() != len)
-	{
-		throw fnd::Exception(kModuleName, "SAC Entry has unexpected size");
-	}
-}
-
 bool SacEntry::isServer() const
 {
 	return mIsServer;
@@ -99,3 +118,22 @@ void SacEntry::setName(const std::string & name)
 
 	mName = name;
 }
+
+bool SacEntry::isEqual(const SacEntry & other) const
+{
+	return (mIsServer == other.mIsServer) \
+		&& (mName == other.mName);
+}
+
+void SacEntry::copyFrom(const SacEntry & other)
+{
+	if (other.getSize())
+	{
+		importBinary(other.getBytes(), other.getSize());
+	}
+	else
+	{
+		this->mIsServer = other.mIsServer;
+		this->mName = other.mName;
+	}
+}

lib/nx/SacEntry.h

@@ -6,9 +6,14 @@
 
 class SacEntry : public ISerialiseableBinary
 {
+public:
 	SacEntry();
+	SacEntry(const std::string& name, bool isServer);
 	SacEntry(const SacEntry& other);
-	SacEntry(const u8* bytes);
+
+	bool operator==(const SacEntry& other) const;
+	bool operator!=(const SacEntry& other) const;
+	void operator=(const SacEntry& other);
 
 	// to be used after export
 	const u8* getBytes() const;
@@ -40,4 +45,7 @@ private:
 	// variables
 	bool mIsServer;
 	std::string mName;
+
+	bool isEqual(const SacEntry& other) const;
+	void copyFrom(const SacEntry& other);
 };

programs/ncatool/main.cpp

@@ -57,46 +57,52 @@ int main(int argc, char** argv)
 		return 1;
 	}
 
-	fnd::MemoryBlob nca;
+	try
-	fnd::io::readFile(argv[1], nca);
-
-	u8 sector[kNcaSectorSize];
-
-	// nca test
-	if (argc == 2)
 	{
-		decryptNcaSectorXts(nca, sector, 1, nx::crypto::aes::nca_header_key[0], nx::crypto::aes::nca_header_key[1]);
+		fnd::MemoryBlob nca;
+		fnd::io::readFile(argv[1], nca);
 
-		NcaHeader hdr;
+		u8 sector[kNcaSectorSize];
-		hdr.importBinary(sector);
 
-		printf("NCA Header\n");
+		// nca test
-		printf("  Size:       0x%" PRIx64 "\n", hdr.getNcaSize());
+		if (argc == 2)
-		printf("  ProgID:     0x%016" PRIx64 "\n", hdr.getProgramId());
-		printf("  Unk0:       0x%" PRIx32 "\n", hdr.getUnk());
-		printf("  Sections:\n");
-		for (size_t i = 0; i < hdr.getSections().size(); i++)
 		{
-			const NcaHeader::sSection& section = hdr.getSections()[i];
+			decryptNcaSectorXts(nca, sector, 1, nx::crypto::aes::nca_header_key[0], nx::crypto::aes::nca_header_key[1]);
-			printf("    %lu:\n", i);
-			printf("      Start Blk: %" PRId32 "\n", section.start_blk);
-			printf("      End Blk:   %" PRId32 "\n", section.end_blk);
-			printf("      Offset:    0x%" PRIx64 "\n", section.offset);
-			printf("      Size:      0x%" PRIx64 "\n", section.size);
-			printf("      KeyType:   0x%02x\n", section.key_type);
-			printf("      Hash:      ");
-			hexDump(section.hash.bytes, crypto::sha::kSha256HashLen);
-			printf("\n");
-		}
-		printf("  AES Keys:\n");
-		for (size_t i = 0; i < hdr.getAesKeys().size(); i++)
-		{
-			printf("    %lu: ", i);
-			hexDump(hdr.getAesKeys()[i].key, crypto::aes::kAes128KeySize);
-			printf("\n");
-		}
 
-		
+			NcaHeader hdr;
+			hdr.importBinary(sector);
+
+			printf("[NCA Header]\n");
+			printf("  Size:       0x%" PRIx64 "\n", hdr.getNcaSize());
+			printf("  ProgID:     0x%016" PRIx64 "\n", hdr.getProgramId());
+			printf("  Unk0:       0x%" PRIx32 "\n", hdr.getUnk());
+			printf("  Sections:\n");
+			for (size_t i = 0; i < hdr.getSections().getSize(); i++)
+			{
+				const NcaHeader::sSection& section = hdr.getSections()[i];
+				printf("    %lu:\n", i);
+				//printf("      Start Blk: %" PRId32 "\n", section.start_blk);
+				//printf("      End Blk:   %" PRId32 "\n", section.end_blk);
+				printf("      Offset:    0x%" PRIx64 "\n", section.offset);
+				printf("      Size:      0x%" PRIx64 "\n", section.size);
+				printf("      KeyType:   0x%02x\n", section.key_type);
+				printf("      Hash:      ");
+				hexDump(section.hash.bytes, crypto::sha::kSha256HashLen);
+				printf("\n");
+			}
+			printf("  AES Keys:\n");
+			for (size_t i = 0; i < hdr.getAesKeys().getSize(); i++)
+			{
+				printf("    %lu: ", i);
+				hexDump(hdr.getAesKeys()[i].key, crypto::aes::kAes128KeySize);
+				printf("\n");
+			}
+
+
+		}
+	} catch (const fnd::Exception& e)
+	{
+		printf("[%s%sERROR] %s\n", e.module(), strlen(e.module()) > 0 ? " " : "", e.what());
 	}
 
 	return 0;