Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6

include/net/bluetooth/hci.h

@@ -745,6 +745,33 @@ struct hci_cp_le_conn_update {
 	__le16   max_ce_len;
 } __packed;
 
+#define HCI_OP_LE_START_ENC		0x2019
+struct hci_cp_le_start_enc {
+	__le16	handle;
+	__u8	rand[8];
+	__le16	ediv;
+	__u8	ltk[16];
+} __packed;
+
+#define HCI_OP_LE_LTK_REPLY		0x201a
+struct hci_cp_le_ltk_reply {
+	__le16	handle;
+	__u8	ltk[16];
+} __packed;
+struct hci_rp_le_ltk_reply {
+	__u8	status;
+	__le16	handle;
+} __packed;
+
+#define HCI_OP_LE_LTK_NEG_REPLY		0x201b
+struct hci_cp_le_ltk_neg_reply {
+	__le16	handle;
+} __packed;
+struct hci_rp_le_ltk_neg_reply {
+	__u8	status;
+	__le16	handle;
+} __packed;
+
 /* ---- HCI Events ---- */
 #define HCI_EV_INQUIRY_COMPLETE		0x01
 
@@ -1035,6 +1062,13 @@ struct hci_ev_le_conn_complete {
 	__u8     clk_accurancy;
 } __packed;
 
+#define HCI_EV_LE_LTK_REQ		0x05
+struct hci_ev_le_ltk_req {
+	__le16	handle;
+	__u8	random[8];
+	__le16	ediv;
+} __packed;
+
 /* Advertising report event types */
 #define ADV_IND		0x00
 #define ADV_DIRECT_IND	0x01

include/net/bluetooth/hci_core.h

@@ -177,6 +177,8 @@ struct hci_dev {
 
 	__u16			init_last_cmd;
 
+	struct crypto_blkcipher	*tfm;
+
 	struct inquiry_cache	inq_cache;
 	struct hci_conn_hash	conn_hash;
 	struct list_head	blacklist;
@@ -247,6 +249,7 @@ struct hci_conn {
 	__u8		power_save;
 	__u16		disc_timeout;
 	unsigned long	pend;
+	__u8		ltk[16];
 
 	__u8		remote_cap;
 	__u8		remote_oob;
@@ -526,6 +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);
 
@@ -742,6 +747,9 @@ static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 	if (conn->sec_level == BT_SECURITY_SDP)
 		conn->sec_level = BT_SECURITY_LOW;
 
+	if (conn->pending_sec_level > conn->sec_level)
+		conn->sec_level = conn->pending_sec_level;
+
 	hci_proto_encrypt_cfm(conn, status, encrypt);
 
 	read_lock_bh(&hci_cb_list_lock);
@@ -859,4 +867,9 @@ void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 
 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 					u16 latency, u16 to_multiplier);
+void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
+							__u8 ltk[16]);
+void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
+void hci_le_ltk_neg_reply(struct hci_conn *conn);
+
 #endif /* __HCI_CORE_H */

include/net/bluetooth/l2cap.h

@@ -287,6 +287,10 @@ struct l2cap_chan {
 
 	struct l2cap_conn	*conn;
 
+	__u8		state;
+
+	atomic_t	refcnt;
+
 	__le16		psm;
 	__u16		dcid;
 	__u16		scid;
@@ -320,8 +324,8 @@ struct l2cap_chan {
 	__u16		monitor_timeout;
 	__u16		mps;
 
-	__u8		conf_state;
-	__u16		conn_state;
+	unsigned long	conf_state;
+	unsigned long	conn_state;
 
 	__u8		next_tx_seq;
 	__u8		expected_ack_seq;
@@ -354,6 +358,18 @@ struct l2cap_chan {
 
 	struct list_head list;
 	struct list_head global_l;
+
+	void		*data;
+	struct l2cap_ops *ops;
+};
+
+struct l2cap_ops {
+	char		*name;
+
+	struct l2cap_chan	*(*new_connection) (void *data);
+	int			(*recv) (void *data, struct sk_buff *skb);
+	void			(*close) (void *data);
+	void			(*state_change) (void *data, int state);
 };
 
 struct l2cap_conn {
@@ -379,6 +395,15 @@ struct l2cap_conn {
 
 	__u8		disc_reason;
 
+	__u8		preq[7]; /* SMP Pairing Request */
+	__u8		prsp[7]; /* SMP Pairing Response */
+	__u8		prnd[16]; /* SMP Pairing Random */
+	__u8		pcnf[16]; /* SMP Pairing Confirm */
+	__u8		tk[16]; /* SMP Temporary Key */
+	__u8		smp_key_size;
+
+	struct timer_list security_timer;
+
 	struct list_head chan_l;
 	rwlock_t	chan_lock;
 };
@@ -399,36 +424,45 @@ struct l2cap_pinfo {
 	struct l2cap_chan	*chan;
 };
 
-#define L2CAP_CONF_REQ_SENT       0x01
-#define L2CAP_CONF_INPUT_DONE     0x02
-#define L2CAP_CONF_OUTPUT_DONE    0x04
-#define L2CAP_CONF_MTU_DONE       0x08
-#define L2CAP_CONF_MODE_DONE      0x10
-#define L2CAP_CONF_CONNECT_PEND   0x20
-#define L2CAP_CONF_NO_FCS_RECV    0x40
-#define L2CAP_CONF_STATE2_DEVICE  0x80
+enum {
+	CONF_REQ_SENT,
+	CONF_INPUT_DONE,
+	CONF_OUTPUT_DONE,
+	CONF_MTU_DONE,
+	CONF_MODE_DONE,
+	CONF_CONNECT_PEND,
+	CONF_NO_FCS_RECV,
+	CONF_STATE2_DEVICE,
+};
 
 #define L2CAP_CONF_MAX_CONF_REQ 2
 #define L2CAP_CONF_MAX_CONF_RSP 2
 
-#define L2CAP_CONN_SAR_SDU         0x0001
-#define L2CAP_CONN_SREJ_SENT       0x0002
-#define L2CAP_CONN_WAIT_F          0x0004
-#define L2CAP_CONN_SREJ_ACT        0x0008
-#define L2CAP_CONN_SEND_PBIT       0x0010
-#define L2CAP_CONN_REMOTE_BUSY     0x0020
-#define L2CAP_CONN_LOCAL_BUSY      0x0040
-#define L2CAP_CONN_REJ_ACT         0x0080
-#define L2CAP_CONN_SEND_FBIT       0x0100
-#define L2CAP_CONN_RNR_SENT        0x0200
-#define L2CAP_CONN_SAR_RETRY       0x0400
-
-#define __mod_retrans_timer() mod_timer(&chan->retrans_timer, \
-		jiffies +  msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));
-#define __mod_monitor_timer() mod_timer(&chan->monitor_timer, \
-		jiffies + msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO));
-#define __mod_ack_timer() mod_timer(&chan->ack_timer, \
-		jiffies + msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO));
+enum {
+	CONN_SAR_SDU,
+	CONN_SREJ_SENT,
+	CONN_WAIT_F,
+	CONN_SREJ_ACT,
+	CONN_SEND_PBIT,
+	CONN_REMOTE_BUSY,
+	CONN_LOCAL_BUSY,
+	CONN_REJ_ACT,
+	CONN_SEND_FBIT,
+	CONN_RNR_SENT,
+	CONN_SAR_RETRY,
+};
+
+#define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t))
+#define __clear_chan_timer(c) l2cap_clear_timer(c, &c->chan_timer)
+#define __set_retrans_timer(c) l2cap_set_timer(c, &c->retrans_timer, \
+		L2CAP_DEFAULT_RETRANS_TO);
+#define __clear_retrans_timer(c) l2cap_clear_timer(c, &c->retrans_timer)
+#define __set_monitor_timer(c) l2cap_set_timer(c, &c->monitor_timer, \
+		L2CAP_DEFAULT_MONITOR_TO);
+#define __clear_monitor_timer(c) l2cap_clear_timer(c, &c->monitor_timer)
+#define __set_ack_timer(c) l2cap_set_timer(c, &chan->ack_timer, \
+		L2CAP_DEFAULT_ACK_TO);
+#define __clear_ack_timer(c) l2cap_clear_timer(c, &c->ack_timer)
 
 static inline int l2cap_tx_window_full(struct l2cap_chan *ch)
 {
@@ -459,11 +493,6 @@ int __l2cap_wait_ack(struct sock *sk);
 int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm);
 int l2cap_add_scid(struct l2cap_chan *chan,  __u16 scid);
 
-void l2cap_sock_kill(struct sock *sk);
-void l2cap_sock_init(struct sock *sk, struct sock *parent);
-struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
-							int proto, gfp_t prio);
-
 struct l2cap_chan *l2cap_chan_create(struct sock *sk);
 void l2cap_chan_close(struct l2cap_chan *chan, int reason);
 void l2cap_chan_destroy(struct l2cap_chan *chan);

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;

include/net/bluetooth/smp.h

+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
 #ifndef __SMP_H
 #define __SMP_H
 
@@ -16,6 +38,23 @@ struct smp_cmd_pairing {
 	__u8	resp_key_dist;
 } __packed;
 
+#define SMP_IO_DISPLAY_ONLY	0x00
+#define SMP_IO_DISPLAY_YESNO	0x01
+#define SMP_IO_KEYBOARD_ONLY	0x02
+#define SMP_IO_NO_INPUT_OUTPUT	0x03
+#define SMP_IO_KEYBOARD_DISPLAY	0x04
+
+#define SMP_OOB_NOT_PRESENT	0x00
+#define SMP_OOB_PRESENT		0x01
+
+#define SMP_DIST_ENC_KEY	0x01
+#define SMP_DIST_ID_KEY		0x02
+#define SMP_DIST_SIGN		0x04
+
+#define SMP_AUTH_NONE		0x00
+#define SMP_AUTH_BONDING	0x01
+#define SMP_AUTH_MITM		0x04
+
 #define SMP_CMD_PAIRING_CONFIRM	0x03
 struct smp_cmd_pairing_confirm {
 	__u8	confirm_val[16];
@@ -73,4 +112,11 @@ struct smp_cmd_security_req {
 #define SMP_UNSPECIFIED		0x08
 #define SMP_REPEATED_ATTEMPTS		0x09
 
+#define SMP_MIN_ENC_KEY_SIZE		7
+#define SMP_MAX_ENC_KEY_SIZE		16
+
+/* SMP Commands */
+int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level);
+int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
+
 #endif /* __SMP_H */

net/bluetooth/Kconfig

@@ -22,6 +22,7 @@ menuconfig BT
 	     BNEP Module (Bluetooth Network Encapsulation Protocol)
 	     CMTP Module (CAPI Message Transport Protocol)
 	     HIDP Module (Human Interface Device Protocol)
+	     SMP Module (Security Manager Protocol)
 
 	  Say Y here to compile Bluetooth support into the kernel or say M to
 	  compile it as module (bluetooth).
@@ -36,11 +37,18 @@ if BT != n
 config BT_L2CAP
 	bool "L2CAP protocol support"
 	select CRC16
+	select CRYPTO
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_AES
+	select CRYPTO_ECB
 	help
 	  L2CAP (Logical Link Control and Adaptation Protocol) provides
 	  connection oriented and connection-less data transport.  L2CAP
 	  support is required for most Bluetooth applications.
 
+	  Also included is support for SMP (Security Manager Protocol) which
+	  is the security layer on top of LE (Low Energy) links.
+
 config BT_SCO
 	bool "SCO links support"
 	help

net/bluetooth/Makefile

@@ -9,5 +9,5 @@ obj-$(CONFIG_BT_CMTP)	+= cmtp/
 obj-$(CONFIG_BT_HIDP)	+= hidp/
 
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o hci_sock.o hci_sysfs.o lib.o
-bluetooth-$(CONFIG_BT_L2CAP)	+= l2cap_core.o l2cap_sock.o
+bluetooth-$(CONFIG_BT_L2CAP)	+= l2cap_core.o l2cap_sock.o smp.o
 bluetooth-$(CONFIG_BT_SCO)	+= sco.o

net/bluetooth/hci_conn.c

@@ -53,6 +53,7 @@ static void hci_le_connect(struct hci_conn *conn)
 	conn->state = BT_CONNECT;
 	conn->out = 1;
 	conn->link_mode |= HCI_LM_MASTER;
+	conn->sec_level = BT_SECURITY_LOW;
 
 	memset(&cp, 0, sizeof(cp));
 	cp.scan_interval = cpu_to_le16(0x0004);
@@ -204,6 +205,55 @@ void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 }
 EXPORT_SYMBOL(hci_le_conn_update);
 
+void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
+							__u8 ltk[16])
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_start_enc cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+	memcpy(cp.ltk, ltk, sizeof(cp.ltk));
+	cp.ediv = ediv;
+	memcpy(cp.rand, rand, sizeof(rand));
+
+	hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp);
+}
+EXPORT_SYMBOL(hci_le_start_enc);
+
+void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16])
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_ltk_reply cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+	memcpy(cp.ltk, ltk, sizeof(ltk));
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
+}
+EXPORT_SYMBOL(hci_le_ltk_reply);
+
+void hci_le_ltk_neg_reply(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_ltk_neg_reply cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(cp), &cp);
+}
+
 /* Device _must_ be locked */
 void hci_sco_setup(struct hci_conn *conn, __u8 status)
 {
@@ -620,11 +670,11 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
 		goto encrypt;
 
 auth:
-	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 		return 0;
 
-	hci_conn_auth(conn, sec_level, auth_type);
-	return 0;
+	if (!hci_conn_auth(conn, sec_level, auth_type))
+		return 0;
 
 encrypt:
 	if (conn->link_mode & HCI_LM_ENCRYPT)

net/bluetooth/hci_core.c

@@ -42,6 +42,7 @@
 #include <linux/notifier.h>
 #include <linux/rfkill.h>
 #include <linux/timer.h>
+#include <linux/crypto.h>
 #include <net/sock.h>
 
 #include <asm/system.h>
@@ -59,6 +60,8 @@ static void hci_tx_task(unsigned long arg);
 
 static DEFINE_RWLOCK(hci_task_lock);
 
+static int enable_smp;
+
 /* HCI device list */
 LIST_HEAD(hci_dev_list);
 DEFINE_RWLOCK(hci_dev_list_lock);
@@ -1202,6 +1205,97 @@ 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;
+	int err;
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+		return -EBADF;
+
+	hci_dev_lock(hdev);
+
+	if (hci_blacklist_lookup(hdev, bdaddr)) {
+		err = -EEXIST;
+		goto err;
+	}
+
+	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
+	if (!entry) {
+		return -ENOMEM;
+		goto err;
+	}
+
+	bacpy(&entry->bdaddr, bdaddr);
+
+	list_add(&entry->list, &hdev->blacklist);
+
+	err = 0;
+
+err:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct bdaddr_list *entry;
+	int err = 0;
+
+	hci_dev_lock(hdev);
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0) {
+		hci_blacklist_clear(hdev);
+		goto done;
+	}
+
+	entry = hci_blacklist_lookup(hdev, bdaddr);
+	if (!entry) {
+		err = -ENOENT;
+		goto done;
+	}
+
+	list_del(&entry->list);
+	kfree(entry);
+
+done:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
 static void hci_clear_adv_cache(unsigned long arg)
 {
 	struct hci_dev *hdev = (void *) arg;
@@ -1274,6 +1368,14 @@ int hci_add_adv_entry(struct hci_dev *hdev,
 	return 0;
 }
 
+static struct crypto_blkcipher *alloc_cypher(void)
+{
+	if (enable_smp)
+		return crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+
+	return ERR_PTR(-ENOTSUPP);
+}
+
 /* Register HCI device */
 int hci_register_dev(struct hci_dev *hdev)
 {
@@ -1358,6 +1460,11 @@ int hci_register_dev(struct hci_dev *hdev)
 	if (!hdev->workqueue)
 		goto nomem;
 
+	hdev->tfm = alloc_cypher();
+	if (IS_ERR(hdev->tfm))
+		BT_INFO("Failed to load transform for ecb(aes): %ld",
+							PTR_ERR(hdev->tfm));
+
 	hci_register_sysfs(hdev);
 
 	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
@@ -1406,6 +1513,9 @@ int hci_unregister_dev(struct hci_dev *hdev)
 					!test_bit(HCI_SETUP, &hdev->flags))
 		mgmt_index_removed(hdev->id);
 
+	if (!IS_ERR(hdev->tfm))
+		crypto_free_blkcipher(hdev->tfm);
+
 	hci_notify(hdev, HCI_DEV_UNREG);
 
 	if (hdev->rfkill) {
@@ -2242,3 +2352,6 @@ static void hci_cmd_task(unsigned long arg)
 		}
 	}
 }
+
+module_param(enable_smp, bool, 0644);
+MODULE_PARM_DESC(enable_smp, "Enable SMP support (LE only)");

net/bluetooth/hci_event.c

@@ -868,6 +868,30 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
+static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
+}
+
+static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
+}
+
 static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 {
 	BT_DBG("%s status 0x%x", hdev->name, status);
@@ -1248,6 +1272,11 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
 	hci_dev_unlock(hdev);
 }
 
+static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status 0x%x", hdev->name, status);
+}
+
 static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -1593,6 +1622,7 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
 				/* Encryption implies authentication */
 				conn->link_mode |= HCI_LM_AUTH;
 				conn->link_mode |= HCI_LM_ENCRYPT;
+				conn->sec_level = conn->pending_sec_level;
 			} else
 				conn->link_mode &= ~HCI_LM_ENCRYPT;
 		}
@@ -1856,6 +1886,14 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
 		hci_cc_le_set_scan_enable(hdev, skb);
 		break;
 
+	case HCI_OP_LE_LTK_REPLY:
+		hci_cc_le_ltk_reply(hdev, skb);
+		break;
+
+	case HCI_OP_LE_LTK_NEG_REPLY:
+		hci_cc_le_ltk_neg_reply(hdev, skb);
+		break;
+
 	default:
 		BT_DBG("%s opcode 0x%x", hdev->name, opcode);
 		break;
@@ -1934,6 +1972,10 @@ static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_le_create_conn(hdev, ev->status);
 		break;
 
+	case HCI_OP_LE_START_ENC:
+		hci_cs_le_start_enc(hdev, ev->status);
+		break;
+
 	default:
 		BT_DBG("%s opcode 0x%x", hdev->name, opcode);
 		break;
@@ -2712,6 +2754,7 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff
 
 	mgmt_connected(hdev->id, &ev->bdaddr);
 
+	conn->sec_level = BT_SECURITY_LOW;
 	conn->handle = __le16_to_cpu(ev->handle);
 	conn->state = BT_CONNECTED;
 
@@ -2745,6 +2788,28 @@ static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
+static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
+						struct sk_buff *skb)
+{
+	struct hci_ev_le_ltk_req *ev = (void *) skb->data;
+	struct hci_cp_le_ltk_reply cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+
+	memset(&cp, 0, sizeof(cp));
+	cp.handle = cpu_to_le16(conn->handle);
+	memcpy(cp.ltk, conn->ltk, sizeof(conn->ltk));
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
+
+	hci_dev_unlock(hdev);
+}
+
 static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_meta *le_ev = (void *) skb->data;
@@ -2760,6 +2825,10 @@ static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_le_adv_report_evt(hdev, skb);
 		break;
 
+	case HCI_EV_LE_LTK_REQ:
+		hci_le_ltk_request_evt(hdev, skb);
+		break;
+
 	default:
 		break;
 	}

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)

net/bluetooth/l2cap_sock.c

@@ -29,8 +29,11 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/smp.h>
 
 static const struct proto_ops l2cap_sock_ops;
+static void l2cap_sock_init(struct sock *sk, struct sock *parent);
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio);
 
 static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 {
@@ -87,6 +90,8 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		chan->sec_level = BT_SECURITY_SDP;
 
 	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+
+	chan->state = BT_BOUND;
 	sk->sk_state = BT_BOUND;
 
 done:
@@ -212,6 +217,8 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
 
 	sk->sk_max_ack_backlog = backlog;
 	sk->sk_ack_backlog = 0;
+
+	chan->state = BT_LISTEN;
 	sk->sk_state = BT_LISTEN;
 
 done:
@@ -505,7 +512,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
 		chan->mode = opts.mode;
 		switch (chan->mode) {
 		case L2CAP_MODE_BASIC:
-			chan->conf_state &= ~L2CAP_CONF_STATE2_DEVICE;
+			clear_bit(CONF_STATE2_DEVICE, &chan->conf_state);
 			break;
 		case L2CAP_MODE_ERTM:
 		case L2CAP_MODE_STREAMING:
@@ -556,6 +563,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 	struct bt_security sec;
 	struct bt_power pwr;
+	struct l2cap_conn *conn;
 	int len, err = 0;
 	u32 opt;
 
@@ -592,6 +600,20 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 		}
 
 		chan->sec_level = sec.level;
+
+		conn = chan->conn;
+		if (conn && chan->scid == L2CAP_CID_LE_DATA) {
+			if (!conn->hcon->out) {
+				err = -EINVAL;
+				break;
+			}
+
+			if (smp_conn_security(conn, sec.level))
+				break;
+
+			err = 0;
+			sk->sk_state = BT_CONFIG;
+		}
 		break;
 
 	case BT_DEFER_SETUP:
@@ -711,7 +733,7 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct ms
 /* Kill socket (only if zapped and orphan)
  * Must be called on unlocked socket.
  */
-void l2cap_sock_kill(struct sock *sk)
+static void l2cap_sock_kill(struct sock *sk)
 {
 	if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket)
 		return;
@@ -773,6 +795,49 @@ static int l2cap_sock_release(struct socket *sock)
 	return err;
 }
 
+static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
+{
+	struct sock *sk, *parent = data;
+
+	sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
+								GFP_ATOMIC);
+	if (!sk)
+		return NULL;
+
+	l2cap_sock_init(sk, parent);
+
+	return l2cap_pi(sk)->chan;
+}
+
+static int l2cap_sock_recv_cb(void *data, struct sk_buff *skb)
+{
+	struct sock *sk = data;
+
+	return sock_queue_rcv_skb(sk, skb);
+}
+
+static void l2cap_sock_close_cb(void *data)
+{
+	struct sock *sk = data;
+
+	l2cap_sock_kill(sk);
+}
+
+static void l2cap_sock_state_change_cb(void *data, int state)
+{
+	struct sock *sk = data;
+
+	sk->sk_state = state;
+}
+
+static struct l2cap_ops l2cap_chan_ops = {
+	.name		= "L2CAP Socket Interface",
+	.new_connection	= l2cap_sock_new_connection_cb,
+	.recv		= l2cap_sock_recv_cb,
+	.close		= l2cap_sock_close_cb,
+	.state_change	= l2cap_sock_state_change_cb,
+};
+
 static void l2cap_sock_destruct(struct sock *sk)
 {
 	BT_DBG("sk %p", sk);
@@ -781,7 +846,7 @@ static void l2cap_sock_destruct(struct sock *sk)
 	skb_queue_purge(&sk->sk_write_queue);
 }
 
-void l2cap_sock_init(struct sock *sk, struct sock *parent)
+static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 {
 	struct l2cap_pinfo *pi = l2cap_pi(sk);
 	struct l2cap_chan *chan = pi->chan;
@@ -826,7 +891,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
 		chan->omtu = 0;
 		if (!disable_ertm && sk->sk_type == SOCK_STREAM) {
 			chan->mode = L2CAP_MODE_ERTM;
-			chan->conf_state |= L2CAP_CONF_STATE2_DEVICE;
+			set_bit(CONF_STATE2_DEVICE, &chan->conf_state);
 		} else {
 			chan->mode = L2CAP_MODE_BASIC;
 		}
@@ -838,10 +903,14 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
 		chan->force_reliable = 0;
 		chan->flushable = BT_FLUSHABLE_OFF;
 		chan->force_active = BT_POWER_FORCE_ACTIVE_ON;
+
 	}
 
 	/* Default config options */
 	chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
+
+	chan->data = sk;
+	chan->ops = &l2cap_chan_ops;
 }
 
 static struct proto l2cap_proto = {
@@ -850,9 +919,10 @@ static struct proto l2cap_proto = {
 	.obj_size	= sizeof(struct l2cap_pinfo)
 };
 
-struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
 {
 	struct sock *sk;
+	struct l2cap_chan *chan;
 
 	sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
 	if (!sk)
@@ -869,6 +939,14 @@ struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, g
 	sk->sk_protocol = proto;
 	sk->sk_state = BT_OPEN;
 
+	chan = l2cap_chan_create(sk);
+	if (!chan) {
+		l2cap_sock_kill(sk);
+		return NULL;
+	}
+
+	l2cap_pi(sk)->chan = chan;
+
 	return sk;
 }
 
@@ -876,7 +954,6 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
 			     int kern)
 {
 	struct sock *sk;
-	struct l2cap_chan *chan;
 
 	BT_DBG("sock %p", sock);
 
@@ -895,14 +972,6 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
 	if (!sk)
 		return -ENOMEM;
 
-	chan = l2cap_chan_create(sk);
-	if (!chan) {
-		l2cap_sock_kill(sk);
-		return -ENOMEM;
-	}
-
-	l2cap_pi(sk)->chan = chan;
-
 	l2cap_sock_init(sk, NULL);
 	return 0;
 }

net/bluetooth/mgmt.c

@@ -990,7 +990,7 @@ static int remove_key(struct sock *sk, u16 index, unsigned char *data, u16 len)
 
 		put_unaligned_le16(conn->handle, &dc.handle);
 		dc.reason = 0x13; /* Remote User Terminated Connection */
-		err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, 0, NULL);
+		err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
 	}
 
 unlock:
@@ -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);