[PATCH 1/2] Bluetooth: Move blacklisting functions to hci_core

[PATCH 1/2] Bluetooth: Move blacklisting functions to hci_core

[Antti Julku]

Move blacklisting functions to hci_core.c, so that they can
be used by both management interface and hci socket interface.

Signed-off-by: Antti Julku <antti.julku@nokia.com>
---
 include/net/bluetooth/hci_core.h |    2 +
 net/bluetooth/hci_core.c         |   79 ++++++++++++++++++++++++++++++++++++++
 net/bluetooth/hci_sock.c         |   70 +++------------------------------
 3 files changed, 87 insertions(+), 64 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index fe05946..26233d4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -529,6 +529,8 @@ int hci_inquiry(void __user *arg);
 
 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 int hci_blacklist_clear(struct hci_dev *hdev);
+int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
 
 int hci_uuids_clear(struct hci_dev *hdev);
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f62ca19..8f5bee1 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1205,6 +1205,85 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 	return 0;
 }
 
+struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
+						bdaddr_t *bdaddr)
+{
+	struct list_head *p;
+
+	list_for_each(p, &hdev->blacklist) {
+		struct bdaddr_list *b;
+
+		b = list_entry(p, struct bdaddr_list, list);
+
+		if (bacmp(bdaddr, &b->bdaddr) == 0)
+			return b;
+	}
+
+	return NULL;
+}
+
+int hci_blacklist_clear(struct hci_dev *hdev)
+{
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &hdev->blacklist) {
+		struct bdaddr_list *b;
+
+		b = list_entry(p, struct bdaddr_list, list);
+
+		list_del(p);
+		kfree(b);
+	}
+
+	return 0;
+}
+
+int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct bdaddr_list *entry;
+
+	hci_dev_lock(hdev);
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+		return -EBADF;
+
+	if (hci_blacklist_lookup(hdev, bdaddr))
+		return -EEXIST;
+
+	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+
+	bacpy(&entry->bdaddr, bdaddr);
+
+	list_add(&entry->list, &hdev->blacklist);
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct bdaddr_list *entry;
+
+	hci_dev_lock(hdev);
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+		return hci_blacklist_clear(hdev);
+
+	entry = hci_blacklist_lookup(hdev, bdaddr);
+	if (!entry)
+		return -ENOENT;
+
+	list_del(&entry->list);
+	kfree(entry);
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
 static void hci_clear_adv_cache(unsigned long arg)
 {
 	struct hci_dev *hdev = (void *) arg;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 295e4a8..ff02cf5 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -180,82 +180,24 @@ static int hci_sock_release(struct socket *sock)
 	return 0;
 }
 
-struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
-{
-	struct list_head *p;
-
-	list_for_each(p, &hdev->blacklist) {
-		struct bdaddr_list *b;
-
-		b = list_entry(p, struct bdaddr_list, list);
-
-		if (bacmp(bdaddr, &b->bdaddr) == 0)
-			return b;
-	}
-
-	return NULL;
-}
-
-static int hci_blacklist_add(struct hci_dev *hdev, void __user *arg)
+static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
 {
 	bdaddr_t bdaddr;
-	struct bdaddr_list *entry;
 
 	if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
 		return -EFAULT;
 
-	if (bacmp(&bdaddr, BDADDR_ANY) == 0)
-		return -EBADF;
-
-	if (hci_blacklist_lookup(hdev, &bdaddr))
-		return -EEXIST;
-
-	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
-	if (!entry)
-		return -ENOMEM;
-
-	bacpy(&entry->bdaddr, &bdaddr);
-
-	list_add(&entry->list, &hdev->blacklist);
-
-	return 0;
-}
-
-int hci_blacklist_clear(struct hci_dev *hdev)
-{
-	struct list_head *p, *n;
-
-	list_for_each_safe(p, n, &hdev->blacklist) {
-		struct bdaddr_list *b;
-
-		b = list_entry(p, struct bdaddr_list, list);
-
-		list_del(p);
-		kfree(b);
-	}
-
-	return 0;
+	return hci_blacklist_add(hdev, &bdaddr);
 }
 
-static int hci_blacklist_del(struct hci_dev *hdev, void __user *arg)
+static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
 {
 	bdaddr_t bdaddr;
-	struct bdaddr_list *entry;
 
 	if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
 		return -EFAULT;
 
-	if (bacmp(&bdaddr, BDADDR_ANY) == 0)
-		return hci_blacklist_clear(hdev);
-
-	entry = hci_blacklist_lookup(hdev, &bdaddr);
-	if (!entry)
-		return -ENOENT;
-
-	list_del(&entry->list);
-	kfree(entry);
-
-	return 0;
+	return hci_blacklist_del(hdev, &bdaddr);
 }
 
 /* Ioctls that require bound socket */
@@ -290,12 +232,12 @@ static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsign
 	case HCIBLOCKADDR:
 		if (!capable(CAP_NET_ADMIN))
 			return -EACCES;
-		return hci_blacklist_add(hdev, (void __user *) arg);
+		return hci_sock_blacklist_add(hdev, (void __user *) arg);
 
 	case HCIUNBLOCKADDR:
 		if (!capable(CAP_NET_ADMIN))
 			return -EACCES;
-		return hci_blacklist_del(hdev, (void __user *) arg);
+		return hci_sock_blacklist_del(hdev, (void __user *) arg);
 
 	default:
 		if (hdev->ioctl)
-- 
1.7.2.5

[PATCH 2/2] Bluetooth: Add blacklisting support for mgmt interface

[Antti Julku]

Management interface commands for blocking and unblocking devices.

Signed-off-by: Antti Julku <antti.julku@nokia.com>
---
 include/net/bluetooth/mgmt.h |   10 ++++++
 net/bluetooth/mgmt.c         |   70 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+), 0 deletions(-)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 4899286..45bea25 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 d192089..64c0418 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1666,6 +1666,70 @@ failed:
 	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);
-- 
1.7.2.5

Re: [PATCH 2/2] Bluetooth: Add blacklisting support for mgmt interface

[Gustavo F. Padovan]

* Antti Julku <antti.julku@nokia.com> [2011-06-15 12:01:15 +0300]:

> Management interface commands for blocking and unblocking devices.
> 
> Signed-off-by: Antti Julku <antti.julku@nokia.com>
> ---
>  include/net/bluetooth/mgmt.h |   10 ++++++
>  net/bluetooth/mgmt.c         |   70 ++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 80 insertions(+), 0 deletions(-)
> 
> diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
> index 4899286..45bea25 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

To make hci code consistent call replace _DEVICE by _ADDR in both macros.

	Gustavo

Re: [PATCH 2/2] Bluetooth: Add blacklisting support for mgmt interface

[Johan Hedberg]

Hi Gustavo,

On Wed, Jun 15, 2011, Gustavo F. Padovan wrote:
> > +#define MGMT_OP_BLOCK_DEVICE		0x001D
> > +struct mgmt_cp_block_device {
> > +	bdaddr_t bdaddr;
> > +} __packed;
> > +
> > +#define MGMT_OP_UNBLOCK_DEVICE		0x001E
> 
> To make hci code consistent call replace _DEVICE by _ADDR in both macros.

I think Antti was just taking example from MGMT_OP_PAIR_DEVICE. To me
"device" sounds better than "addr" as far as the management interface is
concerned, but I'm not gonna object if you wanna change these
occurrences to addr.

Johan
Johan

Re: [PATCH 2/2] Bluetooth: Add blacklisting support for mgmt interface

[Gustavo F. Padovan]

* Johan Hedberg <johan.hedberg@gmail.com> [2011-06-15 22:48:49 +0300]:

> Hi Gustavo,
> 
> On Wed, Jun 15, 2011, Gustavo F. Padovan wrote:
> > > +#define MGMT_OP_BLOCK_DEVICE		0x001D
> > > +struct mgmt_cp_block_device {
> > > +	bdaddr_t bdaddr;
> > > +} __packed;
> > > +
> > > +#define MGMT_OP_UNBLOCK_DEVICE		0x001E
> > 
> > To make hci code consistent call replace _DEVICE by _ADDR in both macros.
> 
> I think Antti was just taking example from MGMT_OP_PAIR_DEVICE. To me
> "device" sounds better than "addr" as far as the management interface is
> concerned, but I'm not gonna object if you wanna change these
> occurrences to addr.

Fair enough. Both patches applied. Thanks.

	Gustavo