Commit b9ee0a78 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
Browse files

Bluetooth: Add address type to device blacklist table 



The device blacklist is not taking care of the address type. Actually
store the address type in the list entries and also use them when
looking up addresses in the table.

This is actually a serious bug. When adding a LE public address to
the blacklist, then it would be blocking a device on BR/EDR. And this
is not the expected behavior.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 041000b9

include/net/bluetooth/hci_core.h

+2 −1
Original line number Diff line number Diff line
@@ -81,6 +81,7 @@ struct hci_conn_hash { 
struct bdaddr_list {

	struct list_head list;

	bdaddr_t bdaddr;

	u8 bdaddr_type;

};



struct bt_uuid {
@@ -732,7 +733,7 @@ int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 
int hci_inquiry(void __user *arg);



struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,

					 bdaddr_t *bdaddr);

					 bdaddr_t *bdaddr, u8 type);

int hci_blacklist_clear(struct hci_dev *hdev);

int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);

int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);

net/bluetooth/hci_core.c

+11 −10
Original line number Diff line number Diff line
@@ -2158,13 +2158,15 @@ 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 bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,

					 bdaddr_t *bdaddr, u8 type)

{

	struct bdaddr_list *b;



	list_for_each_entry(b, &hdev->blacklist, list)

		if (bacmp(bdaddr, &b->bdaddr) == 0)

	list_for_each_entry(b, &hdev->blacklist, list) {

		if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)

			return b;

	}



	return NULL;

}
@@ -2174,9 +2176,7 @@ 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);

		struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list);



		list_del(p);

		kfree(b);
@@ -2189,10 +2189,10 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) 
{

	struct bdaddr_list *entry;



	if (bacmp(bdaddr, BDADDR_ANY) == 0)

	if (!bacmp(bdaddr, BDADDR_ANY))

		return -EBADF;



	if (hci_blacklist_lookup(hdev, bdaddr))

	if (hci_blacklist_lookup(hdev, bdaddr, type))

		return -EEXIST;



	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
@@ -2200,6 +2200,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) 
		return -ENOMEM;



	bacpy(&entry->bdaddr, bdaddr);

	entry->bdaddr_type = type;



	list_add(&entry->list, &hdev->blacklist);
@@ -2210,10 +2211,10 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) 
{

	struct bdaddr_list *entry;



	if (bacmp(bdaddr, BDADDR_ANY) == 0)

	if (!bacmp(bdaddr, BDADDR_ANY))

		return hci_blacklist_clear(hdev);



	entry = hci_blacklist_lookup(hdev, bdaddr);

	entry = hci_blacklist_lookup(hdev, bdaddr, type);

	if (!entry)

		return -ENOENT;

net/bluetooth/hci_event.c

+1 −1
Original line number Diff line number Diff line
@@ -1692,7 +1692,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) 
				      &flags);



	if ((mask & HCI_LM_ACCEPT) &&

	    !hci_blacklist_lookup(hdev, &ev->bdaddr)) {

	    !hci_blacklist_lookup(hdev, &ev->bdaddr, BDADDR_BREDR)) {

		/* Connection accepted */

		struct inquiry_entry *ie;

		struct hci_conn *conn;

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