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Bluetooth: Fix missing address type check for removing LTKs

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When removing Long Term Keys we should also be checking that the given
address type (public vs random) matches. This patch updates the
hci_remove_ltk function to take an extra parameter and uses it for
address type matching.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-02-18 17:14:31 +02:00 committed by Marcel Holtmann
parent 6131ddc8eb
commit e0b2b27e62
3 changed files with 14 additions and 6 deletions
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2
include/net/bluetooth/hci_core.h
View File

@ -792,7 +792,7 @@ int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
__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);
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
int hci_smp_ltks_clear(struct hci_dev *hdev);
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);

4
net/bluetooth/hci_core.c
View File

@ -2810,12 +2810,12 @@ int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
return 0;
}
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr)
int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type)
{
struct smp_ltk *k, *tmp;
list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) {
if (bacmp(bdaddr, &k->bdaddr))
if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type)
continue;
BT_DBG("%s removing %pMR", hdev->name, bdaddr);

14
net/bluetooth/mgmt.c
View File

@ -2318,10 +2318,18 @@ static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
goto unlock;
}
if (cp->addr.type == BDADDR_BREDR)
if (cp->addr.type == BDADDR_BREDR) {
err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
else
err = hci_remove_ltk(hdev, &cp->addr.bdaddr);
} else {
u8 addr_type;
if (cp->addr.type == BDADDR_LE_PUBLIC)
addr_type = ADDR_LE_DEV_PUBLIC;
else
addr_type = ADDR_LE_DEV_RANDOM;
err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type);
}
if (err < 0) {
err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,