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Bluetooth: L2CAP: Ignore packets received while disconnecting

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Drop packets received while disconnecting since they would most likely
be flushed once peer respond there is no gain in keeping them on a
queue.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Luiz Augusto von Dentz 2019-11-18 13:53:57 +02:00 • committed by Johan Hedberg
commit 99066db21d
1 changed files with 14 additions and 2 deletions
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16
subsys/bluetooth/host/l2cap.c
View file

@ -1693,6 +1693,19 @@ static void l2cap_chan_le_recv(struct bt_l2cap_le_chan *chan,
l2cap_chan_send_credits(chan, buf, 1); l2cap_chan_send_credits(chan, buf, 1);
} }
static void l2cap_chan_recv_queue(struct bt_l2cap_le_chan *chan,
struct net_buf *buf)
{
if (chan->chan.state == BT_L2CAP_DISCONNECT) {
BT_WARN("Ignoring data received while disconnecting");
net_buf_unref(buf);
return;
}
net_buf_put(&chan->rx_queue, buf);
k_work_submit(&chan->rx_work);
}
#endif /* CONFIG_BT_L2CAP_DYNAMIC_CHANNEL */ #endif /* CONFIG_BT_L2CAP_DYNAMIC_CHANNEL */
static void l2cap_chan_recv(struct bt_l2cap_chan *chan, struct net_buf *buf) static void l2cap_chan_recv(struct bt_l2cap_chan *chan, struct net_buf *buf)
@ -1701,8 +1714,7 @@ static void l2cap_chan_recv(struct bt_l2cap_chan *chan, struct net_buf *buf)
struct bt_l2cap_le_chan *ch = BT_L2CAP_LE_CHAN(chan); struct bt_l2cap_le_chan *ch = BT_L2CAP_LE_CHAN(chan);
if (L2CAP_LE_CID_IS_DYN(ch->rx.cid)) { if (L2CAP_LE_CID_IS_DYN(ch->rx.cid)) {
net_buf_put(&ch->rx_queue, net_buf_ref(buf)); l2cap_chan_recv_queue(ch, buf);
k_work_submit(&ch->rx_work);
return; return;
} }
#endif /* CONFIG_BT_L2CAP_DYNAMIC_CHANNEL */ #endif /* CONFIG_BT_L2CAP_DYNAMIC_CHANNEL */