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Commit ca9142b8 authored by Johan Hedberg's avatar Johan Hedberg Committed by Marcel Holtmann
Browse files

Bluetooth: Return added key when adding LTKs and IRKs 



The SMP code will need to postpone the mgmt event emission for the IRK
and LTKs. To avoid extra lookups at the end of the key distribution
simply return the added value from the add_ltk and add_irk functions.

Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 0a14ab41

include/net/bluetooth/hci_core.h

+6 −5
Original line number Diff line number Diff line
@@ -787,8 +787,9 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 
		     bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);

struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8],

			     bool master);

int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,

		int new_key, u8 authenticated, u8 tk[16], u8 enc_size,

struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,

			    u8 addr_type, u8 type, int new_key,

			    u8 authenticated, u8 tk[16], u8 enc_size,

			    __le16 ediv, u8 rand[8]);

struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,

				     u8 addr_type, bool master);
@@ -799,8 +800,8 @@ int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 
struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);

struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,

				     u8 addr_type);

int hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type,

		u8 val[16], bdaddr_t *rpa);

struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,

			    u8 addr_type, u8 val[16], bdaddr_t *rpa);

void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);

void hci_smp_irks_clear(struct hci_dev *hdev);

net/bluetooth/hci_core.c

+11 −10
Original line number Diff line number Diff line
@@ -2761,9 +2761,10 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 
	return 0;

}



int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,

		int new_key, u8 authenticated, u8 tk[16], u8 enc_size, __le16

		ediv, u8 rand[8])

struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,

			    u8 addr_type, u8 type, int new_key,

			    u8 authenticated, u8 tk[16], u8 enc_size,

			    __le16 ediv, u8 rand[8])

{

	struct smp_ltk *key, *old_key;

	bool master = ltk_type_master(type);
@@ -2775,7 +2776,7 @@ int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, 
	else {

		key = kzalloc(sizeof(*key), GFP_KERNEL);

		if (!key)

			return -ENOMEM;

			return NULL;

		list_add(&key->list, &hdev->long_term_keys);

	}
@@ -2789,7 +2790,7 @@ int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, 
	memcpy(key->rand, rand, sizeof(key->rand));



	if (!new_key)

		return 0;

		return key;



	if (addr_type == ADDR_LE_DEV_RANDOM && (bdaddr->b[5] & 0xc0) != 0xc0)

		persistent = 0;
@@ -2799,11 +2800,11 @@ int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, 
	if (type == HCI_SMP_LTK || type == HCI_SMP_LTK_SLAVE)

		mgmt_new_ltk(hdev, key, persistent);



	return 0;

	return key;

}



int hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type,

		u8 val[16], bdaddr_t *rpa)

struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,

			    u8 addr_type, u8 val[16], bdaddr_t *rpa)

{

	struct smp_irk *irk;
@@ -2811,7 +2812,7 @@ int hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, 
	if (!irk) {

		irk = kzalloc(sizeof(*irk), GFP_KERNEL);

		if (!irk)

			return -ENOMEM;

			return NULL;



		bacpy(&irk->bdaddr, bdaddr);

		irk->addr_type = addr_type;
@@ -2822,7 +2823,7 @@ int hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, 
	memcpy(irk->val, val, 16);

	bacpy(&irk->rpa, rpa);



	return 0;

	return irk;

}



int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)