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Bluetooth: Fix setting correct authentication information for SMP STK 

When we store the STK in slave role we should set the correct
authentication information for it. If the pairing is producing a HIGH
security level the STK is considered authenticated, and otherwise it's
considered unauthenticated. This patch fixes the value passed to the
hci_add_ltk() function when adding the STK on the slave side.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Tested-by: Marcin Kraglak <marcin.kraglak@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Johan Hedberg 2014-06-10 15:19:50 +03:00 committed by Marcel Holtmann
parent 4ad51a75c7
commit fff3490f47
1 changed files with 7 additions and 2 deletions
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9
net/bluetooth/smp.c
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@ -544,7 +544,7 @@ static u8 smp_random(struct smp_chan *smp)
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = smp->enc_key_size;
} else {
u8 stk[16];
u8 stk[16], auth;
__le64 rand = 0;
__le16 ediv = 0;
@ -556,8 +556,13 @@ static u8 smp_random(struct smp_chan *smp)
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
if (hcon->pending_sec_level == BT_SECURITY_HIGH)
auth = 1;
else
auth = 0;
hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
HCI_SMP_STK_SLAVE, 0, stk, smp->enc_key_size,
HCI_SMP_STK_SLAVE, auth, stk, smp->enc_key_size,
ediv, rand);
}