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authorSamuel Ortiz <sameo@linux.intel.com>2013-05-10 17:07:32 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2013-06-14 13:45:02 +0200
commitbe0856535c64697685af47c5bf2be9f36ab5ca08 (patch)
tree7660c74894de0a6116bcaaf12c9c181e7fd79425 /net/nfc
parentc531c9ec2969860c98a8a47f501c4874278388d3 (diff)
downloadlinux-be0856535c64697685af47c5bf2be9f36ab5ca08.tar.gz
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: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/netlink.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 8a11a3a27e69..b05ad909778f 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1145,6 +1145,52 @@ free_msg:
 	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,
+	},
 };