Merge "Save bonding and pairing state to security record" (1d41507e) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/security/record/security_record.h

+33 −16

Original line number	Diff line number	Diff line
		@@ -28,43 +28,55 @@ namespace bluetooth {
		namespace security {
		namespace record {

		enum BondState {
		/* CreateBond was called, or remote send Pairing Request */
		PAIRING,
		/* Link key has been exchanged, but not stored */
		PAIRED,
		/* Link Keys are stored persistently */
		BONDED
		};

		class SecurityRecord {
		public:
		explicit SecurityRecord(hci::AddressWithType address) : pseudo_address_(address), state_(PAIRING) {}
		explicit SecurityRecord(hci::AddressWithType address) : pseudo_address_(address), pairing_(true) {}

		SecurityRecord& operator=(const SecurityRecord& other) = default;

		/**
		* Returns true if Link Keys are stored persistently
		* Returns true if a device is currently pairing to another device
		*/
		bool IsBonded() {
		return state_ == BONDED;
		bool IsPairing() const {
		return pairing_;
		}

		/* Link key has been exchanged, but not stored */
		bool IsPaired() {
		return state_ == PAIRED;
		bool IsPaired() const {
		return IsClassicLinkKeyValid();
		}

		/**
		* Returns true if Link Keys are stored persistently
		*/
		bool IsBonded() const {
		return IsPaired() && persisted_;
		}

		/**
		* Called by storage manager once record has persisted
		*/
		void SetPersisted(bool persisted) {
		persisted_ = persisted;
		}

		void SetLinkKey(std::array<uint8_t, 16> link_key, hci::KeyType key_type) {
		link_key_ = link_key;
		key_type_ = key_type;
		CancelPairing();
		}

		void CancelPairing() {
		pairing_ = false;
		}

		std::array<uint8_t, 16> GetLinkKey() {
		ASSERT(IsClassicLinkKeyValid());
		return link_key_;
		}

		hci::KeyType GetKeyType() {
		ASSERT(IsClassicLinkKeyValid());
		return key_type_;
		}

		@@ -76,10 +88,15 @@ class SecurityRecord {
		/* First address we have ever seen this device with, that we used to create bond */
		hci::AddressWithType pseudo_address_;

		BondState state_;
		std::array<uint8_t, 16> link_key_ = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
		hci::KeyType key_type_ = hci::KeyType::DEBUG_COMBINATION;

		bool IsClassicLinkKeyValid() const {
		return !std::all_of(link_key_.begin(), link_key_.end(), [](uint8_t b) { return b == 0; });
		}
		bool persisted_ = false;
		bool pairing_ = false;

		public:
		/* Identity Address */
		std::optional<hci::AddressWithType> identity_address_;