diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-07-16 16:09:13 +0400 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-07-17 13:43:06 +0400 |
| commit | 02f3e25457915728624b976b0382601b5605ad64 (patch) | |
| tree | 266106d60c4dea230f27155631434d3c80e7ab4e /net/bluetooth | |
| parent | 9f743d7499bc2c4dc8c35af33bdb2a29bea663b9 (diff) | |
| download | linux-02f3e25457915728624b976b0382601b5605ad64.tar.xz | |
Bluetooth: Don't bother user space without IO capabilities
If user space has a NoInputNoOutput IO capability it makes no sense to
bother it with confirmation requests. This patch updates both SSP and
SMP to check for the local IO capability before sending a user
confirmation request to user space.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_event.c | 4 | ||||
| -rw-r--r-- | net/bluetooth/smp.c | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 1ac526022ad9..1bd4de7e74fc 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -3752,9 +3752,11 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev, /* If we're not the initiators request authorization to * proceed from user space (mgmt_user_confirm with * confirm_hint set to 1). The exception is if neither - * side had MITM in which case we do auto-accept. + * side had MITM or if the local IO capability is + * NoInputNoOutput, in which case we do auto-accept */ if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && + conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && (loc_mitm || rem_mitm)) { BT_DBG("Confirming auto-accept as acceptor"); confirm_hint = 1; diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 70b726518d7b..74a0308e39f3 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -431,6 +431,10 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, if (method == JUST_CFM && test_bit(SMP_FLAG_INITIATOR, &smp->flags)) method = JUST_WORKS; + /* Don't bother user space with no IO capabilities */ + if (method == JUST_CFM && hcon->io_capability == HCI_IO_NO_INPUT_OUTPUT) + method = JUST_WORKS; + /* If Just Works, Continue with Zero TK */ if (method == JUST_WORKS) { set_bit(SMP_FLAG_TK_VALID, &smp->flags); |