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Commit be085653 authored by Samuel Ortiz's avatar Samuel Ortiz
Browse files

NFC: Add secure element enablement netlink API 



Enabling or disabling an NFC accessible secure element through netlink
requires giving both an NFC controller and a secure element indexes.
Once enabled the secure element will handle card emulation once polling
starts.

Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent c531c9ec

net/nfc/netlink.c

+56 −0
Original line number Diff line number Diff line
@@ -1145,6 +1145,52 @@ int nfc_genl_fw_upload_done(struct nfc_dev *dev, const char *firmware_name) 
	return -EMSGSIZE;

}



static int nfc_genl_enable_se(struct sk_buff *skb, struct genl_info *info)

{

	struct nfc_dev *dev;

	int rc;

	u32 idx, se_idx;



	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||

	    !info->attrs[NFC_ATTR_SE_INDEX])

		return -EINVAL;



	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);

	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);



	dev = nfc_get_device(idx);

	if (!dev)

		return -ENODEV;



	rc = nfc_enable_se(dev, se_idx);



	nfc_put_device(dev);

	return rc;

}



static int nfc_genl_disable_se(struct sk_buff *skb, struct genl_info *info)

{

	struct nfc_dev *dev;

	int rc;

	u32 idx, se_idx;



	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||

	    !info->attrs[NFC_ATTR_SE_INDEX])

		return -EINVAL;



	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);

	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);



	dev = nfc_get_device(idx);

	if (!dev)

		return -ENODEV;



	rc = nfc_disable_se(dev, se_idx);



	nfc_put_device(dev);

	return rc;

}



static struct genl_ops nfc_genl_ops[] = {

	{

		.cmd = NFC_CMD_GET_DEVICE,
@@ -1209,6 +1255,16 @@ static struct genl_ops nfc_genl_ops[] = { 
		.doit = nfc_genl_fw_upload,

		.policy = nfc_genl_policy,

	},

	{

		.cmd = NFC_CMD_ENABLE_SE,

		.doit = nfc_genl_enable_se,

		.policy = nfc_genl_policy,

	},

	{

		.cmd = NFC_CMD_DISABLE_SE,

		.doit = nfc_genl_disable_se,

		.policy = nfc_genl_policy,

	},

};