Commit e9bf2bf0 authored by Vinicius Costa Gomes's avatar Vinicius Costa Gomes Committed by Gustavo F. Padovan

Bluetooth: Require authentication if MITM protection is requested

The HIGH security level requires a 16 digit pin code for non-SSP
bondings. Sometimes this requirement is not acceptable and we still
want protection againts MITM attacks (which is something that the
MEDIUM security level doesn't provide), for that we should allow
another way to request authentication without using the HIGH security
level.
Signed-off-by: default avatarVinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 8aab4757
......@@ -1103,9 +1103,10 @@ static int hci_outgoing_auth_needed(struct hci_dev *hdev,
return 0;
/* Only request authentication for SSP connections or non-SSP
* devices with sec_level HIGH */
* devices with sec_level HIGH or if MITM protection is requested */
if (!(hdev->ssp_mode > 0 && conn->ssp_mode > 0) &&
conn->pending_sec_level != BT_SECURITY_HIGH)
conn->pending_sec_level != BT_SECURITY_HIGH &&
!(conn->auth_type & 0x01))
return 0;
return 1;
......
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