From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 18:29:40 +0000 (-0300)
Subject: Bluetooth: Mgmt Device Found Event
X-Git-Tag: firefly_0821_release~176^2~5751^2~78^2^2~23^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=12602d0cc005354a519b3eba443d7912ab71313a;p=firefly-linux-kernel-4.4.55.git

Bluetooth: Mgmt Device Found Event

We only want to send Mgmt Device Found Events if we are running the
Device Discovery procedure (started by the MGMT Start Discovery
Command). Inquiry or LE scanning triggered by HCI raw interface (e.g.
hcitool) or kernel internals should not send Mgmt Device Found Events.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 69d17205745b..7ae737fcf5e7 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4180,6 +4180,9 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	struct mgmt_ev_device_found *ev = (void *) buf;
 	size_t ev_size;
 
+	if (!hci_discovery_active(hdev))
+		return -EPERM;
+
 	/* Leave 5 bytes for a potential CoD field */
 	if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
 		return -EINVAL;