Commit cd96db6f authored by Christophe Ricard's avatar Christophe Ricard Committed by Samuel Ortiz
Browse files

NFC: Add se_io NFC operand 



se_io allows to send apdu over the CLF to the embedded
Secure Element.

Signed-off-by: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 3682f49f

net/nfc/netlink.c

+46 −1
Original line number Diff line number Diff line
@@ -1310,6 +1310,51 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb) 
	return 0;

}



static int nfc_se_io(struct nfc_dev *dev, u32 se_idx,

		     u8 *apdu, size_t apdu_length,

		     se_io_cb_t cb, void *cb_context)

{

	struct nfc_se *se;

	int rc;



	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);



	device_lock(&dev->dev);



	if (!device_is_registered(&dev->dev)) {

		rc = -ENODEV;

		goto error;

	}



	if (!dev->dev_up) {

		rc = -ENODEV;

		goto error;

	}



	if (!dev->ops->se_io) {

		rc = -EOPNOTSUPP;

		goto error;

	}



	se = nfc_find_se(dev, se_idx);

	if (!se) {

		rc = -EINVAL;

		goto error;

	}



	if (se->state != NFC_SE_ENABLED) {

		rc = -ENODEV;

		goto error;

	}



	rc = dev->ops->se_io(dev, se_idx, apdu,

			apdu_length, cb, cb_context);



error:

	device_unlock(&dev->dev);

	return rc;

}



struct se_io_ctx {

	u32 dev_idx;

	u32 se_idx;
@@ -1392,7 +1437,7 @@ static int nfc_genl_se_io(struct sk_buff *skb, struct genl_info *info) 
	ctx->dev_idx = dev_idx;

	ctx->se_idx = se_idx;



	return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);

	return nfc_se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);

}



static const struct genl_ops nfc_genl_ops[] = {