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Bluetooth: Implemented HCI frame reassembly for RX from stream
Implemented frame reassembly implementation for reassembling fragments received from stream. Signed-off-by: Suraj Sumangala <suraj@atheros.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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@ -437,6 +437,7 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
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int hci_recv_frame(struct sk_buff *skb);
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int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
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int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
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int hci_register_sysfs(struct hci_dev *hdev);
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void hci_unregister_sysfs(struct hci_dev *hdev);
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@ -1163,6 +1163,41 @@ int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
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}
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EXPORT_SYMBOL(hci_recv_fragment);
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#define STREAM_REASSEMBLY 0
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int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count)
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{
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int type;
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int rem = 0;
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do {
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struct sk_buff *skb = hdev->reassembly[STREAM_REASSEMBLY];
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if (!skb) {
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struct { char type; } *pkt;
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/* Start of the frame */
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pkt = data;
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type = pkt->type;
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data++;
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count--;
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} else
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type = bt_cb(skb)->pkt_type;
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rem = hci_reassembly(hdev, type, data,
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count, STREAM_REASSEMBLY, GFP_ATOMIC);
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if (rem < 0)
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return rem;
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data += (count - rem);
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count = rem;
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} while (count);
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return rem;
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}
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EXPORT_SYMBOL(hci_recv_stream_fragment);
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/* ---- Interface to upper protocols ---- */
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/* Register/Unregister protocols.
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