From 0515829642c65a4e3c6f44a2209bb426828d26d9 Mon Sep 17 00:00:00 2001 From: Hiren Tandel Date: Mon, 5 May 2014 19:52:27 +0900 Subject: [PATCH] NFC: NCI: Send all NCI frames to raw sockets So that anyone listening on SOCKPROTO_RAW for raw frames will get all NCI frames, in both directions. This actually implements userspace NFC NCI sniffing. It's now up to userspace to decode those frames. Signed-off-by: Hiren Tandel Signed-off-by: Samuel Ortiz --- net/nfc/nci/core.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index 6c34ac978501..2b400e1a8695 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -861,6 +861,10 @@ static int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb) /* Get rid of skb owner, prior to sending to the driver. */ skb_orphan(skb); + /* Send copy to sniffer */ + nfc_send_to_raw_sock(ndev->nfc_dev, skb, + RAW_PAYLOAD_NCI, NFC_DIRECTION_TX); + return ndev->ops->send(ndev, skb); } @@ -935,6 +939,11 @@ static void nci_rx_work(struct work_struct *work) struct sk_buff *skb; while ((skb = skb_dequeue(&ndev->rx_q))) { + + /* Send copy to sniffer */ + nfc_send_to_raw_sock(ndev->nfc_dev, skb, + RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); + /* Process frame */ switch (nci_mt(skb->data)) { case NCI_MT_RSP_PKT: -- GitLab