From 7fbec224cfb44074ab88720c878aa3bdb3158377 Mon Sep 17 00:00:00 2001
From: Antti Julku <antti.julku@nokia.com>
Date: Wed, 15 Jun 2011 12:01:15 +0300
Subject: [PATCH] Bluetooth: Add blacklisting support for mgmt interface

Management interface commands for blocking and unblocking devices.

Signed-off-by: Antti Julku <antti.julku@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
---
 include/net/bluetooth/mgmt.h | 10 ++++++
 net/bluetooth/mgmt.c         | 70 ++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 4899286ed4e4..45bea25d737f 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -199,6 +199,16 @@ struct mgmt_cp_remove_remote_oob_data {
 
 #define MGMT_OP_STOP_DISCOVERY		0x001C
 
+#define MGMT_OP_BLOCK_DEVICE		0x001D
+struct mgmt_cp_block_device {
+	bdaddr_t bdaddr;
+} __packed;
+
+#define MGMT_OP_UNBLOCK_DEVICE		0x001E
+struct mgmt_cp_unblock_device {
+	bdaddr_t bdaddr;
+} __packed;
+
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
 	__le16 opcode;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d19208903be4..64c0418a6221 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1666,6 +1666,70 @@ static int stop_discovery(struct sock *sk, u16 index)
 	return err;
 }
 
+static int block_device(struct sock *sk, u16 index, unsigned char *data,
+								u16 len)
+{
+	struct hci_dev *hdev;
+	struct mgmt_cp_block_device *cp;
+	int err;
+
+	BT_DBG("hci%u", index);
+
+	cp = (void *) data;
+
+	if (len != sizeof(*cp))
+		return cmd_status(sk, index, MGMT_OP_BLOCK_DEVICE,
+							EINVAL);
+
+	hdev = hci_dev_get(index);
+	if (!hdev)
+		return cmd_status(sk, index, MGMT_OP_BLOCK_DEVICE,
+							ENODEV);
+
+	err = hci_blacklist_add(hdev, &cp->bdaddr);
+
+	if (err < 0)
+		err = cmd_status(sk, index, MGMT_OP_BLOCK_DEVICE, -err);
+	else
+		err = cmd_complete(sk, index, MGMT_OP_BLOCK_DEVICE,
+							NULL, 0);
+	hci_dev_put(hdev);
+
+	return err;
+}
+
+static int unblock_device(struct sock *sk, u16 index, unsigned char *data,
+								u16 len)
+{
+	struct hci_dev *hdev;
+	struct mgmt_cp_unblock_device *cp;
+	int err;
+
+	BT_DBG("hci%u", index);
+
+	cp = (void *) data;
+
+	if (len != sizeof(*cp))
+		return cmd_status(sk, index, MGMT_OP_UNBLOCK_DEVICE,
+								EINVAL);
+
+	hdev = hci_dev_get(index);
+	if (!hdev)
+		return cmd_status(sk, index, MGMT_OP_UNBLOCK_DEVICE,
+								ENODEV);
+
+	err = hci_blacklist_del(hdev, &cp->bdaddr);
+
+	if (err < 0)
+		err = cmd_status(sk, index, MGMT_OP_UNBLOCK_DEVICE, -err);
+	else
+		err = cmd_complete(sk, index, MGMT_OP_UNBLOCK_DEVICE,
+								NULL, 0);
+	hci_dev_put(hdev);
+
+	return err;
+}
+
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 {
 	unsigned char *buf;
@@ -1780,6 +1844,12 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 	case MGMT_OP_STOP_DISCOVERY:
 		err = stop_discovery(sk, index);
 		break;
+	case MGMT_OP_BLOCK_DEVICE:
+		err = block_device(sk, index, buf + sizeof(*hdr), len);
+		break;
+	case MGMT_OP_UNBLOCK_DEVICE:
+		err = unblock_device(sk, index, buf + sizeof(*hdr), len);
+		break;
 	default:
 		BT_DBG("Unknown op %u", opcode);
 		err = cmd_status(sk, index, opcode, 0x01);
-- 
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