Bluetooth: Don't send store hint for devices using identity addresses (bab6d1e5) · Commits · 戴 / test

The identity resolving keys should only be stored for devices using resolvable random addresses. If the device is already using an identity address, inform it about the new identity resolving key, but tell userspace that this key is not persistent. Signed-off-by:

Marcel Holtmann <marcel@holtmann.org> Signed-off-by:

Johan Hedberg <johan.hedberg@intel.com>

net/bluetooth/mgmt.c

+16 −1

Original line number	Diff line number	Diff line
		@@ -4798,7 +4798,22 @@ void mgmt_new_irk(struct hci_dev hdev, struct smp_irk irk)

		memset(&ev, 0, sizeof(ev));

		/* For identity resolving keys from devices that are already
		* using a public address or static random address, do not
		* ask for storing this key. The identity resolving key really
		* is only mandatory for devices using resovlable random
		* addresses.
		*
		* Storing all identity resolving keys has the downside that
		* they will be also loaded on next boot of they system. More
		* identity resolving keys, means more time during scanning is
		* needed to actually resolve these addresses.
		*/
		if (bacmp(&irk->rpa, BDADDR_ANY))
		ev.store_hint = 0x01;
		else
		ev.store_hint = 0x00;

		bacpy(&ev.rpa, &irk->rpa);
		bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
		ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);

Admin message