Former single-struct layout of the shared PRF storage, not used by the firmware. More...

Data Structures
struct	BLEPairingData
	BLE pairing. More...

struct	BTClassicPairingData
	BT Classic pairing. More...

struct	SharedPRFData
	Legacy shared PRF storage contents. More...

struct	SharedPRFData.main_fw_scratch
	Area reserved for the normal firmware to stash pairing related data. More...

Detailed Description

Former single-struct layout of the shared PRF storage, not used by the firmware.

Data Structure Documentation

struct BLEPairingData

BLE pairing.

Data Fields
struct pbl_bt_sm_key	csrk	Remote signature key.
uint16_t	ediv	Remote EDIV, used when the watch is central.
struct pbl_bt_device_internal	identity	Remote identity address, used when the watch is peripheral.
struct pbl_bt_sm_key	irk	Remote IRK, used when the watch is peripheral.
bool	is_local_encryption_info_valid: 1	local_div and local_ediv are valid.
bool	is_remote_encryption_info_valid: 1	ltk, rand and ediv are valid.
bool	is_remote_identity_info_valid: 1	irk and identity are valid.
bool	is_remote_signing_info_valid: 1	csrk is valid. Since iOS 9, the CSRK is no longer exchanged.
uint16_t	local_div	DIV handed to the remote with our LTK, used when the watch is peripheral.
uint16_t	local_ediv	EDIV handed to the remote with our LTK, used when the watch is peripheral.
struct pbl_bt_sm_key	ltk	Remote LTK, used when the watch is central.
char	name[PBL_BT_DEVICE_NAME_BUFFER_SIZE]	Remote device name.
uint64_t	rand	Remote Rand, used when the watch is central.

struct BTClassicPairingData

BT Classic pairing.

Data Fields
struct pbl_bt_addr	address	Remote address.
struct pbl_bt_sm_key	link_key	Link key.
char	name[PBL_BT_DEVICE_NAME_BUFFER_SIZE]	Remote device name.
uint8_t	platform_bits	Remote platform bits.

struct SharedPRFData

Legacy shared PRF storage contents.

Shared PRF storage entry.

Data Fields
BLEPairingData	ble_data	BLE pairing, must be adjacent to bt_classic_data.
SprfBlePairingData	ble_pairing_data	BLE pairing.
SprfBlePairingName	ble_pairing_name	BLE pairing device name.
BTClassicPairingData	bt_classic_data	BT Classic pairing.
SprfGettingStarted	getting_started	Onboarding state.
bool	getting_started_is_complete	Onboarding has been completed.
char	local_device_name[PBL_BT_DEVICE_NAME_BUFFER_SIZE]	Custom local device name, empty to use the default name.
SprfLocalIdentityAddress	local_identity_address	Local identity address.
SprfLocalName	local_name	Custom local device name.
SprfMagic	magic	Entry state.
struct SharedPRFData.main_fw_scratch	main_fw_scratch	Area reserved for the normal firmware to stash pairing related data.
SprfPinnedAddress	pinned_address	Pinned address.
struct pbl_bt_sm_key	root_keys[PBL_BT_SM_ROOT_KEY_TYPE_NUM]	BLE root keys (ER and IR).
SprfRootKeys	root_keys	BLE root keys.
uint8_t	rsvd[3]	Reserved.
uint32_t	version	Layout version, see SHARED_PRF_STORAGE_VERSION.
uint8_t	version	Layout version, currently 2.

struct SharedPRFData.main_fw_scratch

Area reserved for the normal firmware to stash pairing related data.

Data Fields
uint8_t	rsvd[32]	Reserved.

#define SHARED_PRF_STORAGE_VERSION 3

Layout version.

1: Added BLE and BT Classic pairing data.
2: Added getting started is complete bit.
3: Added remote Rand, remote EDIV, local DIV, local EDIV, is_..._valid flags, local device name.