hci_event.c 113 KB
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/*
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   BlueZ - Bluetooth protocol stack for Linux
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   Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
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   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

   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
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   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
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   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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   SOFTWARE IS DISCLAIMED.
*/

/* Bluetooth HCI event handling. */

#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/mgmt.h>
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#include "a2mp.h"
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#include "amp.h"
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#include "smp.h"
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/* Handle HCI Event packets */

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static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
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{
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	__u8 status = *((__u8 *) skb->data);
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
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		return;
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	clear_bit(HCI_INQUIRY, &hdev->flags);
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	smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
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	wake_up_bit(&hdev->flags, HCI_INQUIRY);
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	hci_dev_lock(hdev);
	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
	hci_dev_unlock(hdev);

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	hci_conn_check_pending(hdev);
}
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static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;

	set_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);
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}

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static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;
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	clear_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);

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	hci_conn_check_pending(hdev);
}

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static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
					  struct sk_buff *skb)
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{
	BT_DBG("%s", hdev->name);
}

static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_role_discovery *rp = (void *) skb->data;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
	if (conn) {
		if (rp->role)
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			clear_bit(HCI_CONN_MASTER, &conn->flags);
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		else
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			set_bit(HCI_CONN_MASTER, &conn->flags);
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	}
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	hci_dev_unlock(hdev);
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}

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static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_link_policy *rp = (void *) skb->data;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
	if (conn)
		conn->link_policy = __le16_to_cpu(rp->policy);

	hci_dev_unlock(hdev);
}

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static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
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{
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	struct hci_rp_write_link_policy *rp = (void *) skb->data;
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	struct hci_conn *conn;
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	void *sent;
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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
	if (!sent)
		return;
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	hci_dev_lock(hdev);
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	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
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	if (conn)
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		conn->link_policy = get_unaligned_le16(sent + 2);
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	hci_dev_unlock(hdev);
}
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static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
					struct sk_buff *skb)
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{
	struct hci_rp_read_def_link_policy *rp = (void *) skb->data;

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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

	hdev->link_policy = __le16_to_cpu(rp->policy);
}

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static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
					 struct sk_buff *skb)
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{
	__u8 status = *((__u8 *) skb->data);
	void *sent;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
	if (!sent)
		return;

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	hdev->link_policy = get_unaligned_le16(sent);
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}

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static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	clear_bit(HCI_RESET, &hdev->flags);

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	/* Reset all non-persistent flags */
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	hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
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	hdev->discovery.state = DISCOVERY_STOPPED;
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	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
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	memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
	hdev->adv_data_len = 0;
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	memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
	hdev->scan_rsp_data_len = 0;
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	hdev->le_scan_type = LE_SCAN_PASSIVE;

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	hdev->ssp_debug_mode = 0;
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}
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static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
	void *sent;
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
	if (!sent)
		return;
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	hci_dev_lock(hdev);

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	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_set_local_name_complete(hdev, sent, status);
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	else if (!status)
		memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
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	hci_dev_unlock(hdev);
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}

static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_local_name *rp = (void *) skb->data;

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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

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	if (test_bit(HCI_SETUP, &hdev->dev_flags))
		memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
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}

static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
	void *sent;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
	if (!sent)
		return;

	if (!status) {
		__u8 param = *((__u8 *) sent);

		if (param == AUTH_ENABLED)
			set_bit(HCI_AUTH, &hdev->flags);
		else
			clear_bit(HCI_AUTH, &hdev->flags);
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	}
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	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_auth_enable_complete(hdev, status);
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}

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static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
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{
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	__u8 status = *((__u8 *) skb->data);
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	__u8 param;
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	void *sent;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
	if (!sent)
		return;
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	param = *((__u8 *) sent);
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	if (param)
		set_bit(HCI_ENCRYPT, &hdev->flags);
	else
		clear_bit(HCI_ENCRYPT, &hdev->flags);
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}
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static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
{
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	__u8 status = *((__u8 *) skb->data);
	__u8 param;
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	void *sent;
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
	if (!sent)
		return;
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	param = *((__u8 *) sent);

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	hci_dev_lock(hdev);

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	if (status) {
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		hdev->discov_timeout = 0;
		goto done;
	}

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	if (param & SCAN_INQUIRY)
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		set_bit(HCI_ISCAN, &hdev->flags);
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	else
		clear_bit(HCI_ISCAN, &hdev->flags);
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	if (param & SCAN_PAGE)
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		set_bit(HCI_PSCAN, &hdev->flags);
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	else
		clear_bit(HCI_ISCAN, &hdev->flags);
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done:
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	hci_dev_unlock(hdev);
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}
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static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;
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	memcpy(hdev->dev_class, rp->dev_class, 3);
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	BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
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	       hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
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}
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static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
	void *sent;
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
	if (!sent)
		return;
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	hci_dev_lock(hdev);

	if (status == 0)
		memcpy(hdev->dev_class, sent, 3);

	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_set_class_of_dev_complete(hdev, sent, status);

	hci_dev_unlock(hdev);
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}
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static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_voice_setting *rp = (void *) skb->data;
	__u16 setting;

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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

	setting = __le16_to_cpu(rp->voice_setting);

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	if (hdev->voice_setting == setting)
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		return;

	hdev->voice_setting = setting;

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	BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
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	if (hdev->notify)
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		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
}

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static void hci_cc_write_voice_setting(struct hci_dev *hdev,
				       struct sk_buff *skb)
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{
	__u8 status = *((__u8 *) skb->data);
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	__u16 setting;
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	void *sent;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
	if (!sent)
		return;
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	setting = get_unaligned_le16(sent);
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	if (hdev->voice_setting == setting)
		return;

	hdev->voice_setting = setting;
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	BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
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	if (hdev->notify)
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		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
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}

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static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
					  struct sk_buff *skb)
{
	struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

	if (rp->status)
		return;

	hdev->num_iac = rp->num_iac;

	BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
}

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static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
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	struct hci_cp_write_ssp_mode *sent;
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
	if (!sent)
		return;

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	if (!status) {
		if (sent->mode)
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			hdev->features[1][0] |= LMP_HOST_SSP;
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		else
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			hdev->features[1][0] &= ~LMP_HOST_SSP;
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	}

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	if (test_bit(HCI_MGMT, &hdev->dev_flags))
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		mgmt_ssp_enable_complete(hdev, sent->mode, status);
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	else if (!status) {
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		if (sent->mode)
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			set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
		else
			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
	}
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}

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static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
{
	u8 status = *((u8 *) skb->data);
	struct hci_cp_write_sc_support *sent;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
	if (!sent)
		return;

	if (!status) {
		if (sent->support)
			hdev->features[1][0] |= LMP_HOST_SC;
		else
			hdev->features[1][0] &= ~LMP_HOST_SC;
	}

	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_sc_enable_complete(hdev, sent->support, status);
	else if (!status) {
		if (sent->support)
			set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
		else
			clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
	}
}

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static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_local_version *rp = (void *) skb->data;
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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
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		return;
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	if (test_bit(HCI_SETUP, &hdev->dev_flags)) {
		hdev->hci_ver = rp->hci_ver;
		hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
		hdev->lmp_ver = rp->lmp_ver;
		hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
		hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
	}
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}

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static void hci_cc_read_local_commands(struct hci_dev *hdev,
				       struct sk_buff *skb)
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{
	struct hci_rp_read_local_commands *rp = (void *) skb->data;
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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;

	if (test_bit(HCI_SETUP, &hdev->dev_flags))
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		memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
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}
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static void hci_cc_read_local_features(struct hci_dev *hdev,
				       struct sk_buff *skb)
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{
	struct hci_rp_read_local_features *rp = (void *) skb->data;
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	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;
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	memcpy(hdev->features, rp->features, 8);
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	/* Adjust default settings according to features
	 * supported by device. */
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	if (hdev->features[0][0] & LMP_3SLOT)
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		hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
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	if (hdev->features[0][0] & LMP_5SLOT)
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		hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
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	if (hdev->features[0][1] & LMP_HV2) {
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		hdev->pkt_type  |= (HCI_HV2);
		hdev->esco_type |= (ESCO_HV2);
	}
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	if (hdev->features[0][1] & LMP_HV3) {
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		hdev->pkt_type  |= (HCI_HV3);
		hdev->esco_type |= (ESCO_HV3);
	}
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	if (lmp_esco_capable(hdev))
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		hdev->esco_type |= (ESCO_EV3);
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	if (hdev->features[0][4] & LMP_EV4)
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		hdev->esco_type |= (ESCO_EV4);
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	if (hdev->features[0][4] & LMP_EV5)
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		hdev->esco_type |= (ESCO_EV5);
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	if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
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		hdev->esco_type |= (ESCO_2EV3);

565
	if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
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		hdev->esco_type |= (ESCO_3EV3);

568
	if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
569
		hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
570
}
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572
static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
573
					   struct sk_buff *skb)
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{
	struct hci_rp_read_local_ext_features *rp = (void *) skb->data;

577
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
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		return;
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	if (hdev->max_page < rp->max_page)
		hdev->max_page = rp->max_page;
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	if (rp->page < HCI_MAX_PAGES)
		memcpy(hdev->features[rp->page], rp->features, 8);
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}

589
static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
590
					  struct sk_buff *skb)
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{
	struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;

594
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
595

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	if (rp->status)
		return;

	hdev->flow_ctl_mode = rp->mode;
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}

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static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_buffer_size *rp = (void *) skb->data;
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606
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
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	if (rp->status)
		return;
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	hdev->acl_mtu  = __le16_to_cpu(rp->acl_mtu);
	hdev->sco_mtu  = rp->sco_mtu;
	hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
	hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);

	if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
		hdev->sco_mtu  = 64;
		hdev->sco_pkts = 8;
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619
	}
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	hdev->acl_cnt = hdev->acl_pkts;
	hdev->sco_cnt = hdev->sco_pkts;

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	BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
	       hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
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}

static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_bd_addr *rp = (void *) skb->data;

632
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
633

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	if (rp->status)
		return;

	if (test_bit(HCI_INIT, &hdev->flags))
638
		bacpy(&hdev->bdaddr, &rp->bdaddr);
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	if (test_bit(HCI_SETUP, &hdev->dev_flags))
		bacpy(&hdev->setup_addr, &rp->bdaddr);
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}

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static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
					   struct sk_buff *skb)
{
	struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

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	if (rp->status)
		return;

	if (test_bit(HCI_INIT, &hdev->flags)) {
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		hdev->page_scan_interval = __le16_to_cpu(rp->interval);
		hdev->page_scan_window = __le16_to_cpu(rp->window);
	}
}

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static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
					    struct sk_buff *skb)
{
	u8 status = *((u8 *) skb->data);
	struct hci_cp_write_page_scan_activity *sent;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	if (status)
		return;

	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
	if (!sent)
		return;

	hdev->page_scan_interval = __le16_to_cpu(sent->interval);
	hdev->page_scan_window = __le16_to_cpu(sent->window);
}

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static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
					   struct sk_buff *skb)
{
	struct hci_rp_read_page_scan_type *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

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	if (rp->status)
		return;

	if (test_bit(HCI_INIT, &hdev->flags))
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		hdev->page_scan_type = rp->type;
}

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static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
					struct sk_buff *skb)
{
	u8 status = *((u8 *) skb->data);
	u8 *type;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	if (status)
		return;

	type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
	if (type)
		hdev->page_scan_type = *type;
}

709
static void hci_cc_read_data_block_size(struct hci_dev *hdev,
710
					struct sk_buff *skb)
711 712 713
{
	struct hci_rp_read_data_block_size *rp = (void *) skb->data;

714
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
715 716 717 718 719 720 721 722 723 724 725

	if (rp->status)
		return;

	hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
	hdev->block_len = __le16_to_cpu(rp->block_len);
	hdev->num_blocks = __le16_to_cpu(rp->num_blocks);

	hdev->block_cnt = hdev->num_blocks;

	BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
726
	       hdev->block_cnt, hdev->block_len);
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}

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static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_clock *rp = (void *) skb->data;
	struct hci_cp_read_clock *cp;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	if (skb->len < sizeof(*rp))
		return;

	if (rp->status)
		return;

	hci_dev_lock(hdev);

	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
	if (!cp)
		goto unlock;

	if (cp->which == 0x00) {
		hdev->clock = le32_to_cpu(rp->clock);
		goto unlock;
	}

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
	if (conn) {
		conn->clock = le32_to_cpu(rp->clock);
		conn->clock_accuracy = le16_to_cpu(rp->accuracy);
	}

unlock:
	hci_dev_unlock(hdev);
}

764
static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
765
				       struct sk_buff *skb)
766 767 768
{
	struct hci_rp_read_local_amp_info *rp = (void *) skb->data;

769
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
770 771

	if (rp->status)
772
		goto a2mp_rsp;
773 774 775 776 777 778 779 780 781 782 783 784

	hdev->amp_status = rp->amp_status;
	hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
	hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
	hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
	hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
	hdev->amp_type = rp->amp_type;
	hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
	hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
	hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
	hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);

785 786
a2mp_rsp:
	a2mp_send_getinfo_rsp(hdev);
787 788
}

789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804
static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
					struct sk_buff *skb)
{
	struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
	struct amp_assoc *assoc = &hdev->loc_assoc;
	size_t rem_len, frag_len;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

	if (rp->status)
		goto a2mp_rsp;

	frag_len = skb->len - sizeof(*rp);
	rem_len = __le16_to_cpu(rp->rem_len);

	if (rem_len > frag_len) {
805
		BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822

		memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
		assoc->offset += frag_len;

		/* Read other fragments */
		amp_read_loc_assoc_frag(hdev, rp->phy_handle);

		return;
	}

	memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
	assoc->len = assoc->offset + rem_len;
	assoc->offset = 0;

a2mp_rsp:
	/* Send A2MP Rsp when all fragments are received */
	a2mp_send_getampassoc_rsp(hdev, rp->status);
823
	a2mp_send_create_phy_link_req(hdev, rp->status);
824 825
}

826
static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
827
					 struct sk_buff *skb)
828
{
829
	struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
830

831
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
832

833 834 835 836
	if (rp->status)
		return;

	hdev->inq_tx_power = rp->tx_power;
837 838
}

839 840 841 842 843 844
static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_pin_code_reply *rp = (void *) skb->data;
	struct hci_cp_pin_code_reply *cp;
	struct hci_conn *conn;

845
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
846

847 848
	hci_dev_lock(hdev);

849
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
850
		mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
851

852
	if (rp->status)
853
		goto unlock;
854 855 856

	cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
	if (!cp)
857
		goto unlock;
858 859 860 861

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
	if (conn)
		conn->pin_length = cp->pin_len;
862 863 864

unlock:
	hci_dev_unlock(hdev);
865 866 867 868 869 870
}

static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;

871
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
872

873 874
	hci_dev_lock(hdev);

875
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
876
		mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
877
						 rp->status);
878 879

	hci_dev_unlock(hdev);
880
}
881

882 883 884 885 886
static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
				       struct sk_buff *skb)
{
	struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;

887
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
888 889 890 891 892 893 894 895 896 897 898

	if (rp->status)
		return;

	hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
	hdev->le_pkts = rp->le_max_pkt;

	hdev->le_cnt = hdev->le_pkts;

	BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
}
899

900 901 902 903 904 905 906
static void hci_cc_le_read_local_features(struct hci_dev *hdev,
					  struct sk_buff *skb)
{
	struct hci_rp_le_read_local_features *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

907 908 909 910
	if (rp->status)
		return;

	memcpy(hdev->le_features, rp->features, 8);
911 912
}

913 914 915 916 917 918 919
static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
					struct sk_buff *skb)
{
	struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

920 921 922 923
	if (rp->status)
		return;

	hdev->adv_tx_power = rp->tx_power;
924 925
}

926 927 928 929
static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;

930
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
931

932 933
	hci_dev_lock(hdev);

934
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
935 936
		mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
						 rp->status);
937 938

	hci_dev_unlock(hdev);
939 940 941
}

static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
942
					  struct sk_buff *skb)
943 944 945
{
	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;

946
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
947

948 949
	hci_dev_lock(hdev);

950
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
951
		mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
952
						     ACL_LINK, 0, rp->status);
953 954

	hci_dev_unlock(hdev);
955 956
}

957 958 959 960
static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;

961
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
962 963 964

	hci_dev_lock(hdev);

965
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
966
		mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
967
						 0, rp->status);
968 969 970 971 972

	hci_dev_unlock(hdev);
}

static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
973
					  struct sk_buff *skb)
974 975 976
{
	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;

977
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
978 979 980

	hci_dev_lock(hdev);

981
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
982
		mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
983
						     ACL_LINK, 0, rp->status);
984 985 986 987

	hci_dev_unlock(hdev);
}

988 989
static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
				       struct sk_buff *skb)
990 991 992
{
	struct hci_rp_read_local_oob_data *rp = (void *) skb->data;

993
	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
994

995
	hci_dev_lock(hdev);
996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
	mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->randomizer,
					  NULL, NULL, rp->status);
	hci_dev_unlock(hdev);
}

static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
					   struct sk_buff *skb)
{
	struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

	hci_dev_lock(hdev);
	mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->randomizer192,
					  rp->hash256, rp->randomizer256,
					  rp->status);
1012
	hci_dev_unlock(hdev);
1013 1014
}

1015 1016 1017 1018 1019 1020 1021 1022

static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);
	bdaddr_t *sent;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

1023 1024 1025
	if (status)
		return;

1026 1027 1028 1029 1030 1031
	sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
	if (!sent)
		return;

	hci_dev_lock(hdev);

1032
	bacpy(&hdev->random_addr, sent);
1033 1034 1035 1036

	hci_dev_unlock(hdev);
}

1037 1038 1039 1040 1041 1042
static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
{
	__u8 *sent, status = *((__u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

1043
	if (status)
1044 1045
		return;

1046 1047
	sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
	if (!sent)
1048 1049
		return;

1050 1051
	hci_dev_lock(hdev);

1052 1053 1054 1055 1056 1057
	/* If we're doing connection initation as peripheral. Set a
	 * timeout in case something goes wrong.
	 */
	if (*sent) {
		struct hci_conn *conn;

1058 1059
		set_bit(HCI_LE_ADV, &hdev->dev_flags);

1060 1061 1062 1063
		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
		if (conn)
			queue_delayed_work(hdev->workqueue,
					   &conn->le_conn_timeout,
1064
					   conn->conn_timeout);
1065 1066
	} else {
		clear_bit(HCI_LE_ADV, &hdev->dev_flags);
1067 1068
	}

1069
	hci_dev_unlock(hdev);
1070 1071
}

1072 1073 1074 1075 1076 1077 1078
static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_cp_le_set_scan_param *cp;
	__u8 status = *((__u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

1079 1080 1081
	if (status)
		return;

1082 1083 1084 1085 1086 1087
	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
	if (!cp)
		return;

	hci_dev_lock(hdev);

1088
	hdev->le_scan_type = cp->type;
1089 1090 1091 1092

	hci_dev_unlock(hdev);
}

1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
static bool has_pending_adv_report(struct hci_dev *hdev)
{
	struct discovery_state *d = &hdev->discovery;

	return bacmp(&d->last_adv_addr, BDADDR_ANY);
}

static void clear_pending_adv_report(struct hci_dev *hdev)
{
	struct discovery_state *d = &hdev->discovery;

	bacpy(&d->last_adv_addr, BDADDR_ANY);
	d->last_adv_data_len = 0;
}

static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1109 1110
				     u8 bdaddr_type, s8 rssi, u32 flags,
				     u8 *data, u8 len)
1111 1112 1113 1114 1115
{
	struct discovery_state *d = &hdev->discovery;

	bacpy(&d->last_adv_addr, bdaddr);
	d->last_adv_addr_type = bdaddr_type;
1116
	d->last_adv_rssi = rssi;
1117
	d->last_adv_flags = flags;
1118 1119 1120 1121
	memcpy(d->last_adv_data, data, len);
	d->last_adv_data_len = len;
}

1122
static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1123
				      struct sk_buff *skb)
1124 1125 1126 1127
{
	struct hci_cp_le_set_scan_enable *cp;
	__u8 status = *((__u8 *) skb->data);

1128
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1129

1130
	if (status)
1131 1132
		return;

1133 1134
	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
	if (!cp)
1135 1136
		return;

1137
	switch (cp->enable) {
1138
	case LE_SCAN_ENABLE:
1139
		set_bit(HCI_LE_SCAN, &hdev->dev_flags);
1140 1141
		if (hdev->le_scan_type == LE_SCAN_ACTIVE)
			clear_pending_adv_report(hdev);
1142 1143
		break;

1144
	case LE_SCAN_DISABLE:
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		/* We do this here instead of when setting DISCOVERY_STOPPED
		 * since the latter would potentially require waiting for
		 * inquiry to stop too.
		 */
		if (has_pending_adv_report(hdev)) {
			struct discovery_state *d = &hdev->discovery;

			mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1153
					  d->last_adv_addr_type, NULL,
1154
					  d->last_adv_rssi, d->last_adv_flags,
1155
					  d->last_adv_data,
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					  d->last_adv_data_len, NULL, 0);
		}

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		/* Cancel this timer so that we don't try to disable scanning
		 * when it's already disabled.
		 */
		cancel_delayed_work(&hdev->le_scan_disable);

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		clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
1165

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		/* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
		 * interrupted scanning due to a connect request. Mark
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		 * therefore discovery as stopped. If this was not
		 * because of a connect request advertising might have
		 * been disabled because of active scanning, so
		 * re-enable it again if necessary.
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		 */
		if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED,
				       &hdev->dev_flags))
			hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
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		else if (!test_bit(HCI_LE_ADV, &hdev->dev_flags) &&
1177
			 hdev->discovery.state == DISCOVERY_FINDING)
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			mgmt_reenable_advertising(hdev);

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		break;

	default:
		BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
		break;
1185
	}
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}

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static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
					   struct sk_buff *skb)
{
	struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);

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	if (rp->status)
		return;

	hdev->le_white_list_size = rp->size;
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}

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static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
				       struct sk_buff *skb)
{
	__u8 status = *((__u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

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	if (status)
		return;

1211
	hci_bdaddr_list_clear(&hdev->le_white_list);
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}

static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
					struct sk_buff *skb)
{
	struct hci_cp_le_add_to_white_list *sent;
	__u8 status = *((__u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
	if (!sent)
		return;

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	hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
			   sent->bdaddr_type);
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}

static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
					  struct sk_buff *skb)
{
	struct hci_cp_le_del_from_white_list *sent;
	__u8 status = *((__u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
	if (!sent)
		return;

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	hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
			    sent->bdaddr_type);
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}

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static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
					    struct sk_buff *skb)
{
	struct hci_rp_le_read_supported_states *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

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	if (rp->status)
		return;

	memcpy(hdev->le_states, rp->le_states, 8);
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}

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static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
					   struct sk_buff *skb)
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{
1268
	struct hci_cp_write_le_host_supported *sent;
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	__u8 status = *((__u8 *) skb->data);

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (status)
		return;

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	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
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	if (!sent)
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		return;

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	if (sent->le) {
		hdev->features[1][0] |= LMP_HOST_LE;
		set_bit(HCI_LE_ENABLED, &hdev->dev_flags);
	} else {
		hdev->features[1][0] &= ~LMP_HOST_LE;
		clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
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	}
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	if (sent->simul)
		hdev->features[1][0] |= LMP_HOST_LE_BREDR;
	else
		hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
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}

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static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_cp_le_set_adv_param *cp;
	u8 status = *((u8 *) skb->data);

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	if (status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
	if (!cp)
		return;

	hci_dev_lock(hdev);
	hdev->adv_addr_type = cp->own_address_type;
	hci_dev_unlock(hdev);
}

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static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
					  struct sk_buff *skb)
{
	struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data;

	BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
	       hdev->name, rp->status, rp->phy_handle);

	if (rp->status)
		return;

	amp_write_rem_assoc_continue(hdev, rp->phy_handle);
}

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static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_rp_read_rssi *rp = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

	if (rp->status)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
	if (conn)
		conn->rssi = rp->rssi;

	hci_dev_unlock(hdev);
}

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static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_cp_read_tx_power *sent;
	struct hci_rp_read_tx_power *rp = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);

	if (rp->status)
		return;

	sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
	if (!sent)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
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	if (!conn)
		goto unlock;

	switch (sent->type) {
	case 0x00:
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		conn->tx_power = rp->tx_power;
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		break;
	case 0x01:
		conn->max_tx_power = rp->tx_power;
		break;
	}
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unlock:
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	hci_dev_unlock(hdev);
}

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static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1382
{
1383
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1384 1385 1386

	if (status) {
		hci_conn_check_pending(hdev);
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		return;
	}

1390
	set_bit(HCI_INQUIRY, &hdev->flags);
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}

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static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
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{
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	struct hci_cp_create_conn *cp;
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	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
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	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);

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	BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
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	if (status) {
		if (conn && conn->state == BT_CONNECT) {
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			if (status != 0x0c || conn->attempt > 2) {
				conn->state = BT_CLOSED;
				hci_proto_connect_cfm(conn, status);
				hci_conn_del(conn);
			} else
				conn->state = BT_CONNECT2;
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		}
	} else {
		if (!conn) {
			conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
			if (conn) {
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				conn->out = true;
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				set_bit(HCI_CONN_MASTER, &conn->flags);
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			} else
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				BT_ERR("No memory for new connection");
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		}
	}

	hci_dev_unlock(hdev);
}

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static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
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{
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	struct hci_cp_add_sco *cp;
	struct hci_conn *acl, *sco;
	__u16 handle;
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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1440

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	if (!status)
		return;
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	cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
	if (!cp)
		return;
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	handle = __le16_to_cpu(cp->handle);
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	BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
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	hci_dev_lock(hdev);
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	acl = hci_conn_hash_lookup_handle(hdev, handle);
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	if (acl) {
		sco = acl->link;
		if (sco) {
			sco->state = BT_CLOSED;
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			hci_proto_connect_cfm(sco, status);
			hci_conn_del(sco);
		}
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	}
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	hci_dev_unlock(hdev);
}
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static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
{
	struct hci_cp_auth_requested *cp;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (conn) {
		if (conn->state == BT_CONFIG) {
			hci_proto_connect_cfm(conn, status);
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			hci_conn_drop(conn);
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		}
	}

	hci_dev_unlock(hdev);
}

static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
{
	struct hci_cp_set_conn_encrypt *cp;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (conn) {
		if (conn->state == BT_CONFIG) {
			hci_proto_connect_cfm(conn, status);
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			hci_conn_drop(conn);
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		}
	}

	hci_dev_unlock(hdev);
}

1522
static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1523
				    struct hci_conn *conn)
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{
	if (conn->state != BT_CONFIG || !conn->out)
		return 0;

1528
	if (conn->pending_sec_level == BT_SECURITY_SDP)
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		return 0;

	/* Only request authentication for SSP connections or non-SSP
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	 * devices with sec_level MEDIUM or HIGH or if MITM protection
	 * is requested.
	 */
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	if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
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	    conn->pending_sec_level != BT_SECURITY_FIPS &&
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	    conn->pending_sec_level != BT_SECURITY_HIGH &&
	    conn->pending_sec_level != BT_SECURITY_MEDIUM)
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		return 0;

	return 1;
}

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static int hci_resolve_name(struct hci_dev *hdev,
1545
				   struct inquiry_entry *e)
1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558
{
	struct hci_cp_remote_name_req cp;

	memset(&cp, 0, sizeof(cp));

	bacpy(&cp.bdaddr, &e->data.bdaddr);
	cp.pscan_rep_mode = e->data.pscan_rep_mode;
	cp.pscan_mode = e->data.pscan_mode;
	cp.clock_offset = e->data.clock_offset;

	return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
}

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static bool hci_resolve_next_name(struct hci_dev *hdev)
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{
	struct discovery_state *discov = &hdev->discovery;
	struct inquiry_entry *e;

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	if (list_empty(&discov->resolve))
		return false;

	e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
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	if (!e)
		return false;

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	if (hci_resolve_name(hdev, e) == 0) {
		e->name_state = NAME_PENDING;
		return true;
	}

	return false;
}

static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
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				   bdaddr_t *bdaddr, u8 *name, u8 name_len)
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{
	struct discovery_state *discov = &hdev->discovery;
	struct inquiry_entry *e;

	if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
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		mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name,
				      name_len, conn->dev_class);
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	if (discov->state == DISCOVERY_STOPPED)
		return;

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	if (discov->state == DISCOVERY_STOPPING)
		goto discov_complete;

	if (discov->state != DISCOVERY_RESOLVING)
		return;

	e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
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	/* If the device was not found in a list of found devices names of which
	 * are pending. there is no need to continue resolving a next name as it
	 * will be done upon receiving another Remote Name Request Complete
	 * Event */
	if (!e)
		return;

	list_del(&e->list);
	if (name) {
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		e->name_state = NAME_KNOWN;
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		mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
				 e->data.rssi, name, name_len);
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	} else {
		e->name_state = NAME_NOT_KNOWN;
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	}

1615
	if (hci_resolve_next_name(hdev))
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		return;

discov_complete:
	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
}

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static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
{
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	struct hci_cp_remote_name_req *cp;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	/* If successful wait for the name req complete event before
	 * checking for the need to do authentication */
	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
	if (!cp)
		return;

	hci_dev_lock(hdev);

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	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);

1642
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
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		hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
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	if (!conn)
		goto unlock;

	if (!hci_outgoing_auth_needed(hdev, conn))
		goto unlock;

1651
	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
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		struct hci_cp_auth_requested auth_cp;

		auth_cp.handle = __cpu_to_le16(conn->handle);
		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
			     sizeof(auth_cp), &auth_cp);
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	}

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unlock:
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	hci_dev_unlock(hdev);
1661
}
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static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
{
	struct hci_cp_read_remote_features *cp;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (conn) {
		if (conn->state == BT_CONFIG) {
			hci_proto_connect_cfm(conn, status);
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			hci_conn_drop(conn);
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		}
	}

	hci_dev_unlock(hdev);
}

static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
{
	struct hci_cp_read_remote_ext_features *cp;
	struct hci_conn *conn;

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	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (conn) {
		if (conn->state == BT_CONFIG) {
			hci_proto_connect_cfm(conn, status);
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			hci_conn_drop(conn);
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		}
	}

	hci_dev_unlock(hdev);
}

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static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
{
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	struct hci_cp_setup_sync_conn *cp;
	struct hci_conn *acl, *sco;
	__u16 handle;

1723
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
	if (!cp)
		return;

	handle = __le16_to_cpu(cp->handle);

1734
	BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
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	hci_dev_lock(hdev);

	acl = hci_conn_hash_lookup_handle(hdev, handle);
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	if (acl) {
		sco = acl->link;
		if (sco) {
			sco->state = BT_CLOSED;
1743

1744 1745 1746
			hci_proto_connect_cfm(sco, status);
			hci_conn_del(sco);
		}
1747 1748 1749
	}

	hci_dev_unlock(hdev);
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1750 1751
}

1752
static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
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1753
{
1754 1755
	struct hci_cp_sniff_mode *cp;
	struct hci_conn *conn;
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1756

1757
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1758

1759 1760
	if (!status)
		return;
1761

1762 1763 1764
	cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
	if (!cp)
		return;
1765

1766
	hci_dev_lock(hdev);
1767

1768
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1769
	if (conn) {
1770
		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1771

1772
		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1773 1774 1775
			hci_sco_setup(conn, status);
	}

1776 1777
	hci_dev_unlock(hdev);
}
1778

1779 1780 1781 1782
static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
{
	struct hci_cp_exit_sniff_mode *cp;
	struct hci_conn *conn;
1783

1784
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1785

1786 1787
	if (!status)
		return;
1788

1789 1790 1791
	cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
	if (!cp)
		return;
1792

1793
	hci_dev_lock(hdev);
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1795
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1796
	if (conn) {
1797
		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
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1799
		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1800 1801 1802
			hci_sco_setup(conn, status);
	}

1803
	hci_dev_unlock(hdev);
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}

1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822
static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
{
	struct hci_cp_disconnect *cp;
	struct hci_conn *conn;

	if (!status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (conn)
		mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1823
				       conn->dst_type, status);
1824 1825 1826 1827

	hci_dev_unlock(hdev);
}

1828 1829
static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
{
1830 1831
	struct hci_cp_create_phy_link *cp;

1832
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
1833 1834 1835 1836 1837

	cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
	if (!cp)
		return;

1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850
	hci_dev_lock(hdev);

	if (status) {
		struct hci_conn *hcon;

		hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
		if (hcon)
			hci_conn_del(hcon);
	} else {
		amp_write_remote_assoc(hdev, cp->phy_handle);
	}

	hci_dev_unlock(hdev);
1851 1852
}

1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868
static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
{
	struct hci_cp_accept_phy_link *cp;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	if (status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
	if (!cp)
		return;

	amp_write_remote_assoc(hdev, cp->phy_handle);
}

1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905
static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
{
	struct hci_cp_le_create_conn *cp;
	struct hci_conn *conn;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	/* All connection failure handling is taken care of by the
	 * hci_le_conn_failed function which is triggered by the HCI
	 * request completion callbacks used for connecting.
	 */
	if (status)
		return;

	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
	if (!cp)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
	if (!conn)
		goto unlock;

	/* Store the initiator and responder address information which
	 * is needed for SMP. These values will not change during the
	 * lifetime of the connection.
	 */
	conn->init_addr_type = cp->own_address_type;
	if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
		bacpy(&conn->init_addr, &hdev->random_addr);
	else
		bacpy(&conn->init_addr, &hdev->bdaddr);

	conn->resp_addr_type = cp->peer_addr_type;
	bacpy(&conn->resp_addr, &cp->peer_addr);

1906 1907 1908 1909 1910 1911 1912 1913
	/* We don't want the connection attempt to stick around
	 * indefinitely since LE doesn't have a page timeout concept
	 * like BR/EDR. Set a timer for any connection that doesn't use
	 * the white list for connecting.
	 */
	if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
		queue_delayed_work(conn->hdev->workqueue,
				   &conn->le_conn_timeout,
1914
				   conn->conn_timeout);
1915

1916 1917 1918 1919
unlock:
	hci_dev_unlock(hdev);
}

1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
{
	struct hci_cp_le_start_enc *cp;
	struct hci_conn *conn;

	BT_DBG("%s status 0x%2.2x", hdev->name, status);

	if (!status)
		return;

	hci_dev_lock(hdev);

	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
	if (!cp)
		goto unlock;

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
	if (!conn)
		goto unlock;

	if (conn->state != BT_CONNECTED)
		goto unlock;

	hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
	hci_conn_drop(conn);

unlock:
	hci_dev_unlock(hdev);
}

1950
static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
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1951 1952
{
	__u8 status = *((__u8 *) skb->data);
1953 1954
	struct discovery_state *discov = &hdev->discovery;
	struct inquiry_entry *e;
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1955

1956
	BT_DBG("%s status 0x%2.2x", hdev->name, status);
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1957

1958
	hci_conn_check_pending(hdev);
1959 1960 1961 1962

	if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
		return;

1963
	smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
1964 1965
	wake_up_bit(&hdev->flags, HCI_INQUIRY);

1966
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
1967 1968
		return;

1969
	hci_dev_lock(hdev);
1970

1971
	if (discov->state != DISCOVERY_FINDING)
1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987
		goto unlock;

	if (list_empty(&discov->resolve)) {
		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
		goto unlock;
	}

	e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
	if (e && hci_resolve_name(hdev, e) == 0) {
		e->name_state = NAME_PENDING;
		hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
	} else {
		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
	}

unlock:
1988
	hci_dev_unlock(hdev);
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1989 1990
}

1991
static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
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1992
{
1993
	struct inquiry_data data;
1994
	struct inquiry_info *info = (void *) (skb->data + 1);
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1995 1996 1997 1998
	int num_rsp = *((__u8 *) skb->data);

	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);

1999 2000 2001
	if (!num_rsp)
		return;

2002 2003 2004
	if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
		return;

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2005
	hci_dev_lock(hdev);
2006

2007
	for (; num_rsp; num_rsp--, info++) {
2008
		u32 flags;
2009

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2010 2011 2012 2013 2014 2015 2016
		bacpy(&data.bdaddr, &info->bdaddr);
		data.pscan_rep_mode	= info->pscan_rep_mode;
		data.pscan_period_mode	= info->pscan_period_mode;
		data.pscan_mode		= info->pscan_mode;
		memcpy(data.dev_class, info->dev_class, 3);
		data.clock_offset	= info->clock_offset;
		data.rssi		= 0x00;
2017
		data.ssp_mode		= 0x00;
2018

2019 2020
		flags = hci_inquiry_cache_update(hdev, &data, false);

2021
		mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2022
				  info->dev_class, 0, flags, NULL, 0, NULL, 0);
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2023
	}
2024

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2025 2026 2027
	hci_dev_unlock(hdev);
}

2028
static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
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{
2030 2031
	struct hci_ev_conn_complete *ev = (void *) skb->data;
	struct hci_conn *conn;
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2032 2033 2034 2035 2036 2037

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2038 2039 2040 2041 2042 2043 2044 2045 2046 2047
	if (!conn) {
		if (ev->link_type != SCO_LINK)
			goto unlock;

		conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
		if (!conn)
			goto unlock;

		conn->type = SCO_LINK;
	}
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2048 2049 2050

	if (!ev->status) {
		conn->handle = __le16_to_cpu(ev->handle);
2051 2052 2053 2054

		if (conn->type == ACL_LINK) {
			conn->state = BT_CONFIG;
			hci_conn_hold(conn);
2055 2056 2057 2058 2059 2060

			if (!conn->out && !hci_conn_ssp_enabled(conn) &&
			    !hci_find_link_key(hdev, &ev->bdaddr))
				conn->disc_timeout = HCI_PAIRING_TIMEOUT;
			else
				conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2061 2062
		} else
			conn->state = BT_CONNECTED;
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2064 2065
		hci_conn_add_sysfs(conn);

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		if (test_bit(HCI_AUTH, &hdev->flags))
2067
			set_bit(HCI_CONN_AUTH, &conn->flags);
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2068 2069

		if (test_bit(HCI_ENCRYPT, &hdev->flags))
2070
			set_bit(HCI_CONN_ENCRYPT, &conn->flags);
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2071

2072 2073 2074 2075
		/* Get remote features */
		if (conn->type == ACL_LINK) {
			struct hci_cp_read_remote_features cp;
			cp.handle = ev->handle;
2076
			hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2077
				     sizeof(cp), &cp);
2078 2079
		}

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2080
		/* Set packet type for incoming connection */
2081
		if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
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			struct hci_cp_change_conn_ptype cp;
			cp.handle = ev->handle;
2084
			cp.pkt_type = cpu_to_le16(conn->pkt_type);
2085 2086
			hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
				     &cp);
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2087
		}
2088
	} else {
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2089
		conn->state = BT_CLOSED;
2090
		if (conn->type == ACL_LINK)
2091
			mgmt_connect_failed(hdev, &conn->dst, conn->type,
2092
					    conn->dst_type, ev->status);
2093
	}
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2094

2095 2096
	if (conn->type == ACL_LINK)
		hci_sco_setup(conn, ev->status);
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2097

2098 2099
	if (ev->status) {
		hci_proto_connect_cfm(conn, ev->status);
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2100
		hci_conn_del(conn);
2101 2102
	} else if (ev->link_type != ACL_LINK)
		hci_proto_connect_cfm(conn, ev->status);
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2104
unlock:
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2105 2106
	hci_dev_unlock(hdev);

2107
	hci_conn_check_pending(hdev);
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2108 2109
}

2110 2111 2112 2113 2114 2115 2116 2117 2118
static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
	struct hci_cp_reject_conn_req cp;

	bacpy(&cp.bdaddr, bdaddr);
	cp.reason = HCI_ERROR_REJ_BAD_ADDR;
	hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
}

2119
static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
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2120
{
2121 2122
	struct hci_ev_conn_request *ev = (void *) skb->data;
	int mask = hdev->link_mode;
2123 2124
	struct inquiry_entry *ie;
	struct hci_conn *conn;
2125
	__u8 flags = 0;
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2126

2127
	BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2128
	       ev->link_type);
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2130 2131
	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
				      &flags);
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2133 2134 2135 2136 2137
	if (!(mask & HCI_LM_ACCEPT)) {
		hci_reject_conn(hdev, &ev->bdaddr);
		return;
	}

2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149
	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) {
		if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
					   BDADDR_BREDR)) {
			hci_reject_conn(hdev, &ev->bdaddr);
			return;
		}
	} else {
		if (!hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
					    BDADDR_BREDR)) {
			hci_reject_conn(hdev, &ev->bdaddr);
			return;
		}
2150
	}
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2151

2152
	/* Connection accepted */
2153

2154 2155 2156 2157 2158
	hci_dev_lock(hdev);

	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
	if (ie)
		memcpy(ie->data.dev_class, ev->dev_class, 3);
2159

2160 2161 2162 2163
	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
			&ev->bdaddr);
	if (!conn) {
		conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
2164
		if (!conn) {
2165 2166 2167
			BT_ERR("No memory for new connection");
			hci_dev_unlock(hdev);
			return;
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2168
		}
2169
	}
2170

2171
	memcpy(conn->dev_class, ev->dev_class, 3);
2172

2173
	hci_dev_unlock(hdev);
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2175 2176 2177 2178
	if (ev->link_type == ACL_LINK ||
	    (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
		struct hci_cp_accept_conn_req cp;
		conn->state = BT_CONNECT;
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2180
		bacpy(&cp.bdaddr, &ev->bdaddr);
2181

2182 2183 2184 2185
		if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
			cp.role = 0x00; /* Become master */
		else
			cp.role = 0x01; /* Remain slave */
2186

2187 2188 2189 2190
		hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
	} else if (!(flags & HCI_PROTO_DEFER)) {
		struct hci_cp_accept_sync_conn_req cp;
		conn->state = BT_CONNECT;
2191

2192 2193
		bacpy(&cp.bdaddr, &ev->bdaddr);
		cp.pkt_type = cpu_to_le16(conn->pkt_type);
2194

2195 2196 2197 2198 2199
		cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
		cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
		cp.max_latency    = cpu_to_le16(0xffff);
		cp.content_format = cpu_to_le16(hdev->voice_setting);
		cp.retrans_effort = 0xff;
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2201 2202
		hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
			     &cp);
2203
	} else {
2204 2205
		conn->state = BT_CONNECT2;
		hci_proto_connect_cfm(conn, 0);
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	}
}

2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224
static u8 hci_to_mgmt_reason(u8 err)
{
	switch (err) {
	case HCI_ERROR_CONNECTION_TIMEOUT:
		return MGMT_DEV_DISCONN_TIMEOUT;
	case HCI_ERROR_REMOTE_USER_TERM:
	case HCI_ERROR_REMOTE_LOW_RESOURCES:
	case HCI_ERROR_REMOTE_POWER_OFF:
		return MGMT_DEV_DISCONN_REMOTE;
	case HCI_ERROR_LOCAL_HOST_TERM:
		return MGMT_DEV_DISCONN_LOCAL_HOST;
	default:
		return MGMT_DEV_DISCONN_UNKNOWN;
	}
}

2225
static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2226
{
2227
	struct hci_ev_disconn_complete *ev = (void *) skb->data;
2228
	u8 reason = hci_to_mgmt_reason(ev->reason);
2229
	struct hci_conn_params *params;
2230
	struct hci_conn *conn;
2231
	bool mgmt_connected;
2232
	u8 type;
2233

2234
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2235 2236 2237 2238

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2239 2240
	if (!conn)
		goto unlock;
2241

2242 2243 2244 2245
	if (ev->status) {
		mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
				       conn->dst_type, ev->status);
		goto unlock;
2246
	}
2247

2248 2249
	conn->state = BT_CLOSED;

2250 2251 2252
	mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
	mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
				reason, mgmt_connected);
2253

2254 2255
	if (conn->type == ACL_LINK &&
	    test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2256
		hci_remove_link_key(hdev, &conn->dst);
2257

2258 2259 2260 2261 2262 2263 2264 2265 2266
	params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
	if (params) {
		switch (params->auto_connect) {
		case HCI_AUTO_CONN_LINK_LOSS:
			if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
				break;
			/* Fall through */

		case HCI_AUTO_CONN_ALWAYS:
2267 2268 2269
			list_del_init(&params->action);
			list_add(&params->action, &hdev->pend_le_conns);
			hci_update_background_scan(hdev);
2270 2271 2272 2273 2274 2275 2276
			break;

		default:
			break;
		}
	}

2277
	type = conn->type;
2278

2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293
	hci_proto_disconn_cfm(conn, ev->reason);
	hci_conn_del(conn);

	/* Re-enable advertising if necessary, since it might
	 * have been disabled by the connection. From the
	 * HCI_LE_Set_Advertise_Enable command description in
	 * the core specification (v4.0):
	 * "The Controller shall continue advertising until the Host
	 * issues an LE_Set_Advertise_Enable command with
	 * Advertising_Enable set to 0x00 (Advertising is disabled)
	 * or until a connection is created or until the Advertising
	 * is timed out due to Directed Advertising."
	 */
	if (type == LE_LINK)
		mgmt_reenable_advertising(hdev);
2294 2295

unlock:
2296 2297 2298
	hci_dev_unlock(hdev);
}

2299
static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
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2300
{
2301
	struct hci_ev_auth_complete *ev = (void *) skb->data;
2302
	struct hci_conn *conn;
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2303

2304
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
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2305 2306 2307

	hci_dev_lock(hdev);

2308
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2309 2310 2311 2312
	if (!conn)
		goto unlock;

	if (!ev->status) {
2313
		if (!hci_conn_ssp_enabled(conn) &&
2314
		    test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2315
			BT_INFO("re-auth of legacy device is not possible.");
2316
		} else {
2317
			set_bit(HCI_CONN_AUTH, &conn->flags);
2318
			conn->sec_level = conn->pending_sec_level;
2319
		}
2320
	} else {
2321
		mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
2322
				 ev->status);
2323
	}
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2325 2326
	clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
	clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
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2327

2328
	if (conn->state == BT_CONFIG) {
2329
		if (!ev->status && hci_conn_ssp_enabled(conn)) {
2330 2331 2332 2333
			struct hci_cp_set_conn_encrypt cp;
			cp.handle  = ev->handle;
			cp.encrypt = 0x01;
			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2334
				     &cp);
2335
		} else {
2336 2337
			conn->state = BT_CONNECTED;
			hci_proto_connect_cfm(conn, ev->status);
2338
			hci_conn_drop(conn);
2339
		}
2340 2341
	} else {
		hci_auth_cfm(conn, ev->status);
2342

2343 2344
		hci_conn_hold(conn);
		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2345
		hci_conn_drop(conn);
2346 2347
	}

2348
	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2349 2350 2351 2352 2353
		if (!ev->status) {
			struct hci_cp_set_conn_encrypt cp;
			cp.handle  = ev->handle;
			cp.encrypt = 0x01;
			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2354
				     &cp);
2355
		} else {
2356
			clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2357
			hci_encrypt_cfm(conn, ev->status, 0x00);
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		}
	}

2361
unlock:
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	hci_dev_unlock(hdev);
}

2365
static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
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2366
{
2367 2368 2369
	struct hci_ev_remote_name *ev = (void *) skb->data;
	struct hci_conn *conn;

2370
	BT_DBG("%s", hdev->name);
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2371

2372
	hci_conn_check_pending(hdev);
2373 2374 2375

	hci_dev_lock(hdev);

2376
	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2377

2378 2379
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
		goto check_auth;
2380

2381 2382
	if (ev->status == 0)
		hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2383
				       strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2384 2385 2386 2387
	else
		hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);

check_auth:
2388 2389 2390 2391 2392 2393
	if (!conn)
		goto unlock;

	if (!hci_outgoing_auth_needed(hdev, conn))
		goto unlock;

2394
	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2395 2396 2397 2398 2399
		struct hci_cp_auth_requested cp;
		cp.handle = __cpu_to_le16(conn->handle);
		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
	}

2400
unlock:
2401
	hci_dev_unlock(hdev);
2402 2403
}

2404
static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2405 2406 2407 2408
{
	struct hci_ev_encrypt_change *ev = (void *) skb->data;
	struct hci_conn *conn;

2409
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
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2410 2411 2412

	hci_dev_lock(hdev);

2413
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2414 2415
	if (!conn)
		goto unlock;
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2416

2417 2418 2419
	if (!ev->status) {
		if (ev->encrypt) {
			/* Encryption implies authentication */
2420 2421
			set_bit(HCI_CONN_AUTH, &conn->flags);
			set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2422
			conn->sec_level = conn->pending_sec_level;
2423

2424 2425
			/* P-256 authentication key implies FIPS */
			if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2426
				set_bit(HCI_CONN_FIPS, &conn->flags);
2427

2428 2429 2430 2431
			if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
			    conn->type == LE_LINK)
				set_bit(HCI_CONN_AES_CCM, &conn->flags);
		} else {
2432
			clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2433 2434
			clear_bit(HCI_CONN_AES_CCM, &conn->flags);
		}
2435
	}
2436

2437
	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2438

2439 2440 2441 2442
	if (ev->status && conn->state == BT_CONNECTED) {
		hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
		hci_conn_drop(conn);
		goto unlock;
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2443 2444
	}

2445 2446 2447 2448
	if (conn->state == BT_CONFIG) {
		if (!ev->status)
			conn->state = BT_CONNECTED;

2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460
		/* In Secure Connections Only mode, do not allow any
		 * connections that are not encrypted with AES-CCM
		 * using a P-256 authenticated combination key.
		 */
		if (test_bit(HCI_SC_ONLY, &hdev->dev_flags) &&
		    (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
		     conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
			hci_proto_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
			hci_conn_drop(conn);
			goto unlock;
		}

2461 2462 2463 2464 2465
		hci_proto_connect_cfm(conn, ev->status);
		hci_conn_drop(conn);
	} else
		hci_encrypt_cfm(conn, ev->status, ev->encrypt);

2466
unlock:
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2467 2468 2469
	hci_dev_unlock(hdev);
}

2470 2471
static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
					     struct sk_buff *skb)
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2472
{
2473
	struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2474
	struct hci_conn *conn;
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2475

2476
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
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2477 2478 2479

	hci_dev_lock(hdev);

2480
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
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2481 2482
	if (conn) {
		if (!ev->status)
2483
			set_bit(HCI_CONN_SECURE, &conn->flags);
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2484

2485
		clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
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2486 2487 2488 2489 2490 2491 2492

		hci_key_change_cfm(conn, ev->status);
	}

	hci_dev_unlock(hdev);
}

2493 2494
static void hci_remote_features_evt(struct hci_dev *hdev,
				    struct sk_buff *skb)
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2495
{
2496 2497 2498
	struct hci_ev_remote_features *ev = (void *) skb->data;
	struct hci_conn *conn;

2499
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2500 2501 2502 2503

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2504 2505
	if (!conn)
		goto unlock;
2506

2507
	if (!ev->status)
2508
		memcpy(conn->features[0], ev->features, 8);
2509 2510 2511 2512 2513 2514 2515 2516 2517

	if (conn->state != BT_CONFIG)
		goto unlock;

	if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
		struct hci_cp_read_remote_ext_features cp;
		cp.handle = ev->handle;
		cp.page = 0x01;
		hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
2518
			     sizeof(cp), &cp);
2519 2520 2521
		goto unlock;
	}

2522
	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2523 2524 2525 2526 2527
		struct hci_cp_remote_name_req cp;
		memset(&cp, 0, sizeof(cp));
		bacpy(&cp.bdaddr, &conn->dst);
		cp.pscan_rep_mode = 0x02;
		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2528 2529
	} else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
		mgmt_device_connected(hdev, &conn->dst, conn->type,
2530 2531
				      conn->dst_type, 0, NULL, 0,
				      conn->dev_class);
2532

2533
	if (!hci_outgoing_auth_needed(hdev, conn)) {
2534 2535
		conn->state = BT_CONNECTED;
		hci_proto_connect_cfm(conn, ev->status);
2536
		hci_conn_drop(conn);
2537
	}
2538

2539
unlock:
2540
	hci_dev_unlock(hdev);
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2541 2542
}

2543
static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2544 2545
{
	struct hci_ev_cmd_complete *ev = (void *) skb->data;
2546
	u8 status = skb->data[sizeof(*ev)];
2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557
	__u16 opcode;

	skb_pull(skb, sizeof(*ev));

	opcode = __le16_to_cpu(ev->opcode);

	switch (opcode) {
	case HCI_OP_INQUIRY_CANCEL:
		hci_cc_inquiry_cancel(hdev, skb);
		break;

2558 2559 2560 2561
	case HCI_OP_PERIODIC_INQ:
		hci_cc_periodic_inq(hdev, skb);
		break;

2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573
	case HCI_OP_EXIT_PERIODIC_INQ:
		hci_cc_exit_periodic_inq(hdev, skb);
		break;

	case HCI_OP_REMOTE_NAME_REQ_CANCEL:
		hci_cc_remote_name_req_cancel(hdev, skb);
		break;

	case HCI_OP_ROLE_DISCOVERY:
		hci_cc_role_discovery(hdev, skb);
		break;

2574 2575 2576 2577
	case HCI_OP_READ_LINK_POLICY:
		hci_cc_read_link_policy(hdev, skb);
		break;

2578 2579 2580 2581
	case HCI_OP_WRITE_LINK_POLICY:
		hci_cc_write_link_policy(hdev, skb);
		break;

2582 2583 2584 2585 2586 2587 2588 2589
	case HCI_OP_READ_DEF_LINK_POLICY:
		hci_cc_read_def_link_policy(hdev, skb);
		break;

	case HCI_OP_WRITE_DEF_LINK_POLICY:
		hci_cc_write_def_link_policy(hdev, skb);
		break;

2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629
	case HCI_OP_RESET:
		hci_cc_reset(hdev, skb);
		break;

	case HCI_OP_WRITE_LOCAL_NAME:
		hci_cc_write_local_name(hdev, skb);
		break;

	case HCI_OP_READ_LOCAL_NAME:
		hci_cc_read_local_name(hdev, skb);
		break;

	case HCI_OP_WRITE_AUTH_ENABLE:
		hci_cc_write_auth_enable(hdev, skb);
		break;

	case HCI_OP_WRITE_ENCRYPT_MODE:
		hci_cc_write_encrypt_mode(hdev, skb);
		break;

	case HCI_OP_WRITE_SCAN_ENABLE:
		hci_cc_write_scan_enable(hdev, skb);
		break;

	case HCI_OP_READ_CLASS_OF_DEV:
		hci_cc_read_class_of_dev(hdev, skb);
		break;

	case HCI_OP_WRITE_CLASS_OF_DEV:
		hci_cc_write_class_of_dev(hdev, skb);
		break;

	case HCI_OP_READ_VOICE_SETTING:
		hci_cc_read_voice_setting(hdev, skb);
		break;

	case HCI_OP_WRITE_VOICE_SETTING:
		hci_cc_write_voice_setting(hdev, skb);
		break;

2630 2631 2632 2633
	case HCI_OP_READ_NUM_SUPPORTED_IAC:
		hci_cc_read_num_supported_iac(hdev, skb);
		break;

2634 2635 2636 2637
	case HCI_OP_WRITE_SSP_MODE:
		hci_cc_write_ssp_mode(hdev, skb);
		break;

2638 2639 2640 2641
	case HCI_OP_WRITE_SC_SUPPORT:
		hci_cc_write_sc_support(hdev, skb);
		break;

2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653
	case HCI_OP_READ_LOCAL_VERSION:
		hci_cc_read_local_version(hdev, skb);
		break;

	case HCI_OP_READ_LOCAL_COMMANDS:
		hci_cc_read_local_commands(hdev, skb);
		break;

	case HCI_OP_READ_LOCAL_FEATURES:
		hci_cc_read_local_features(hdev, skb);
		break;

2654 2655 2656 2657
	case HCI_OP_READ_LOCAL_EXT_FEATURES:
		hci_cc_read_local_ext_features(hdev, skb);
		break;

2658 2659 2660 2661 2662 2663 2664 2665
	case HCI_OP_READ_BUFFER_SIZE:
		hci_cc_read_buffer_size(hdev, skb);
		break;

	case HCI_OP_READ_BD_ADDR:
		hci_cc_read_bd_addr(hdev, skb);
		break;

2666 2667 2668 2669
	case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
		hci_cc_read_page_scan_activity(hdev, skb);
		break;

2670 2671 2672 2673
	case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
		hci_cc_write_page_scan_activity(hdev, skb);
		break;

2674 2675 2676 2677
	case HCI_OP_READ_PAGE_SCAN_TYPE:
		hci_cc_read_page_scan_type(hdev, skb);
		break;

2678 2679 2680 2681
	case HCI_OP_WRITE_PAGE_SCAN_TYPE:
		hci_cc_write_page_scan_type(hdev, skb);
		break;

2682 2683 2684 2685
	case HCI_OP_READ_DATA_BLOCK_SIZE:
		hci_cc_read_data_block_size(hdev, skb);
		break;

2686 2687 2688 2689
	case HCI_OP_READ_FLOW_CONTROL_MODE:
		hci_cc_read_flow_control_mode(hdev, skb);
		break;

2690 2691 2692 2693
	case HCI_OP_READ_LOCAL_AMP_INFO:
		hci_cc_read_local_amp_info(hdev, skb);
		break;

2694 2695 2696 2697
	case HCI_OP_READ_CLOCK:
		hci_cc_read_clock(hdev, skb);
		break;

2698 2699 2700 2701
	case HCI_OP_READ_LOCAL_AMP_ASSOC:
		hci_cc_read_local_amp_assoc(hdev, skb);
		break;

2702 2703 2704 2705
	case HCI_OP_READ_INQ_RSP_TX_POWER:
		hci_cc_read_inq_rsp_tx_power(hdev, skb);
		break;

2706 2707 2708 2709 2710 2711 2712 2713
	case HCI_OP_PIN_CODE_REPLY:
		hci_cc_pin_code_reply(hdev, skb);
		break;

	case HCI_OP_PIN_CODE_NEG_REPLY:
		hci_cc_pin_code_neg_reply(hdev, skb);
		break;

2714
	case HCI_OP_READ_LOCAL_OOB_DATA:
2715 2716 2717 2718 2719
		hci_cc_read_local_oob_data(hdev, skb);
		break;

	case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
		hci_cc_read_local_oob_ext_data(hdev, skb);
2720 2721
		break;

2722 2723 2724 2725
	case HCI_OP_LE_READ_BUFFER_SIZE:
		hci_cc_le_read_buffer_size(hdev, skb);
		break;

2726 2727 2728 2729
	case HCI_OP_LE_READ_LOCAL_FEATURES:
		hci_cc_le_read_local_features(hdev, skb);
		break;

2730 2731 2732 2733
	case HCI_OP_LE_READ_ADV_TX_POWER:
		hci_cc_le_read_adv_tx_power(hdev, skb);
		break;

2734 2735 2736 2737 2738 2739 2740 2741
	case HCI_OP_USER_CONFIRM_REPLY:
		hci_cc_user_confirm_reply(hdev, skb);
		break;

	case HCI_OP_USER_CONFIRM_NEG_REPLY:
		hci_cc_user_confirm_neg_reply(hdev, skb);
		break;

2742 2743 2744 2745 2746 2747
	case HCI_OP_USER_PASSKEY_REPLY:
		hci_cc_user_passkey_reply(hdev, skb);
		break;

	case HCI_OP_USER_PASSKEY_NEG_REPLY:
		hci_cc_user_passkey_neg_reply(hdev, skb);
2748
		break;
2749

2750 2751 2752 2753
	case HCI_OP_LE_SET_RANDOM_ADDR:
		hci_cc_le_set_random_addr(hdev, skb);
		break;

2754 2755 2756 2757
	case HCI_OP_LE_SET_ADV_ENABLE:
		hci_cc_le_set_adv_enable(hdev, skb);
		break;

2758 2759 2760 2761
	case HCI_OP_LE_SET_SCAN_PARAM:
		hci_cc_le_set_scan_param(hdev, skb);
		break;

2762 2763 2764 2765
	case HCI_OP_LE_SET_SCAN_ENABLE:
		hci_cc_le_set_scan_enable(hdev, skb);
		break;

2766 2767 2768 2769
	case HCI_OP_LE_READ_WHITE_LIST_SIZE:
		hci_cc_le_read_white_list_size(hdev, skb);
		break;

2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781
	case HCI_OP_LE_CLEAR_WHITE_LIST:
		hci_cc_le_clear_white_list(hdev, skb);
		break;

	case HCI_OP_LE_ADD_TO_WHITE_LIST:
		hci_cc_le_add_to_white_list(hdev, skb);
		break;

	case HCI_OP_LE_DEL_FROM_WHITE_LIST:
		hci_cc_le_del_from_white_list(hdev, skb);
		break;

2782 2783 2784 2785
	case HCI_OP_LE_READ_SUPPORTED_STATES:
		hci_cc_le_read_supported_states(hdev, skb);
		break;

2786 2787 2788 2789
	case HCI_OP_WRITE_LE_HOST_SUPPORTED:
		hci_cc_write_le_host_supported(hdev, skb);
		break;

2790 2791 2792 2793
	case HCI_OP_LE_SET_ADV_PARAM:
		hci_cc_set_adv_param(hdev, skb);
		break;

2794 2795 2796 2797
	case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
		hci_cc_write_remote_amp_assoc(hdev, skb);
		break;

2798 2799 2800 2801
	case HCI_OP_READ_RSSI:
		hci_cc_read_rssi(hdev, skb);
		break;

2802 2803 2804 2805
	case HCI_OP_READ_TX_POWER:
		hci_cc_read_tx_power(hdev, skb);
		break;

2806
	default:
2807
		BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2808 2809 2810
		break;
	}

2811
	if (opcode != HCI_OP_NOP)
2812
		cancel_delayed_work(&hdev->cmd_timer);
2813

2814
	hci_req_cmd_complete(hdev, opcode, status);
2815

2816
	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2817 2818
		atomic_set(&hdev->cmd_cnt, 1);
		if (!skb_queue_empty(&hdev->cmd_q))
2819
			queue_work(hdev->workqueue, &hdev->cmd_work);
2820 2821 2822
	}
}

2823
static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844
{
	struct hci_ev_cmd_status *ev = (void *) skb->data;
	__u16 opcode;

	skb_pull(skb, sizeof(*ev));

	opcode = __le16_to_cpu(ev->opcode);

	switch (opcode) {
	case HCI_OP_INQUIRY:
		hci_cs_inquiry(hdev, ev->status);
		break;

	case HCI_OP_CREATE_CONN:
		hci_cs_create_conn(hdev, ev->status);
		break;

	case HCI_OP_ADD_SCO:
		hci_cs_add_sco(hdev, ev->status);
		break;

2845 2846 2847 2848 2849 2850 2851 2852
	case HCI_OP_AUTH_REQUESTED:
		hci_cs_auth_requested(hdev, ev->status);
		break;

	case HCI_OP_SET_CONN_ENCRYPT:
		hci_cs_set_conn_encrypt(hdev, ev->status);
		break;

2853 2854 2855 2856
	case HCI_OP_REMOTE_NAME_REQ:
		hci_cs_remote_name_req(hdev, ev->status);
		break;

2857 2858 2859 2860 2861 2862 2863 2864
	case HCI_OP_READ_REMOTE_FEATURES:
		hci_cs_read_remote_features(hdev, ev->status);
		break;

	case HCI_OP_READ_REMOTE_EXT_FEATURES:
		hci_cs_read_remote_ext_features(hdev, ev->status);
		break;

2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876
	case HCI_OP_SETUP_SYNC_CONN:
		hci_cs_setup_sync_conn(hdev, ev->status);
		break;

	case HCI_OP_SNIFF_MODE:
		hci_cs_sniff_mode(hdev, ev->status);
		break;

	case HCI_OP_EXIT_SNIFF_MODE:
		hci_cs_exit_sniff_mode(hdev, ev->status);
		break;

2877
	case HCI_OP_DISCONNECT:
2878
		hci_cs_disconnect(hdev, ev->status);
2879 2880
		break;

2881 2882 2883 2884
	case HCI_OP_CREATE_PHY_LINK:
		hci_cs_create_phylink(hdev, ev->status);
		break;

2885 2886 2887 2888
	case HCI_OP_ACCEPT_PHY_LINK:
		hci_cs_accept_phylink(hdev, ev->status);
		break;

2889 2890 2891 2892
	case HCI_OP_LE_CREATE_CONN:
		hci_cs_le_create_conn(hdev, ev->status);
		break;

2893 2894 2895 2896
	case HCI_OP_LE_START_ENC:
		hci_cs_le_start_enc(hdev, ev->status);
		break;

2897
	default:
2898
		BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2899 2900 2901
		break;
	}

2902
	if (opcode != HCI_OP_NOP)
2903
		cancel_delayed_work(&hdev->cmd_timer);
2904

2905 2906 2907
	if (ev->status ||
	    (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
		hci_req_cmd_complete(hdev, opcode, ev->status);
2908

2909
	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2910 2911
		atomic_set(&hdev->cmd_cnt, 1);
		if (!skb_queue_empty(&hdev->cmd_q))
2912
			queue_work(hdev->workqueue, &hdev->cmd_work);
2913 2914 2915
	}
}

2916
static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2917 2918 2919 2920
{
	struct hci_ev_role_change *ev = (void *) skb->data;
	struct hci_conn *conn;

2921
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2922 2923 2924 2925 2926 2927 2928

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (conn) {
		if (!ev->status) {
			if (ev->role)
2929
				clear_bit(HCI_CONN_MASTER, &conn->flags);
2930
			else
2931
				set_bit(HCI_CONN_MASTER, &conn->flags);
2932 2933
		}

2934
		clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2935 2936 2937 2938 2939 2940 2941

		hci_role_switch_cfm(conn, ev->status, ev->role);
	}

	hci_dev_unlock(hdev);
}

2942
static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2943 2944 2945 2946
{
	struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
	int i;

2947 2948 2949 2950 2951
	if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
		BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
		return;
	}

2952
	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
2953
	    ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
2954 2955 2956 2957
		BT_DBG("%s bad parameters", hdev->name);
		return;
	}

2958 2959
	BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);

2960 2961
	for (i = 0; i < ev->num_hndl; i++) {
		struct hci_comp_pkts_info *info = &ev->handles[i];
2962 2963 2964
		struct hci_conn *conn;
		__u16  handle, count;

2965 2966
		handle = __le16_to_cpu(info->handle);
		count  = __le16_to_cpu(info->count);
2967 2968

		conn = hci_conn_hash_lookup_handle(hdev, handle);
2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986
		if (!conn)
			continue;

		conn->sent -= count;

		switch (conn->type) {
		case ACL_LINK:
			hdev->acl_cnt += count;
			if (hdev->acl_cnt > hdev->acl_pkts)
				hdev->acl_cnt = hdev->acl_pkts;
			break;

		case LE_LINK:
			if (hdev->le_pkts) {
				hdev->le_cnt += count;
				if (hdev->le_cnt > hdev->le_pkts)
					hdev->le_cnt = hdev->le_pkts;
			} else {
2987 2988
				hdev->acl_cnt += count;
				if (hdev->acl_cnt > hdev->acl_pkts)
2989 2990
					hdev->acl_cnt = hdev->acl_pkts;
			}
2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001
			break;

		case SCO_LINK:
			hdev->sco_cnt += count;
			if (hdev->sco_cnt > hdev->sco_pkts)
				hdev->sco_cnt = hdev->sco_pkts;
			break;

		default:
			BT_ERR("Unknown type %d conn %p", conn->type, conn);
			break;
3002 3003 3004
		}
	}

3005
	queue_work(hdev->workqueue, &hdev->tx_work);
3006 3007
}

3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028
static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
						 __u16 handle)
{
	struct hci_chan *chan;

	switch (hdev->dev_type) {
	case HCI_BREDR:
		return hci_conn_hash_lookup_handle(hdev, handle);
	case HCI_AMP:
		chan = hci_chan_lookup_handle(hdev, handle);
		if (chan)
			return chan->conn;
		break;
	default:
		BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
		break;
	}

	return NULL;
}

3029
static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3030 3031 3032 3033 3034 3035 3036 3037 3038 3039
{
	struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
	int i;

	if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
		BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
		return;
	}

	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3040
	    ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
3041 3042 3043 3044 3045
		BT_DBG("%s bad parameters", hdev->name);
		return;
	}

	BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3046
	       ev->num_hndl);
3047 3048 3049

	for (i = 0; i < ev->num_hndl; i++) {
		struct hci_comp_blocks_info *info = &ev->handles[i];
3050
		struct hci_conn *conn = NULL;
3051 3052 3053 3054 3055
		__u16  handle, block_count;

		handle = __le16_to_cpu(info->handle);
		block_count = __le16_to_cpu(info->blocks);

3056
		conn = __hci_conn_lookup_handle(hdev, handle);
3057 3058 3059 3060 3061 3062 3063
		if (!conn)
			continue;

		conn->sent -= block_count;

		switch (conn->type) {
		case ACL_LINK:
3064
		case AMP_LINK:
3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078
			hdev->block_cnt += block_count;
			if (hdev->block_cnt > hdev->num_blocks)
				hdev->block_cnt = hdev->num_blocks;
			break;

		default:
			BT_ERR("Unknown type %d conn %p", conn->type, conn);
			break;
		}
	}

	queue_work(hdev->workqueue, &hdev->tx_work);
}

3079
static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3080
{
3081
	struct hci_ev_mode_change *ev = (void *) skb->data;
3082 3083
	struct hci_conn *conn;

3084
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3085 3086 3087 3088

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3089 3090 3091
	if (conn) {
		conn->mode = ev->mode;

3092 3093
		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
					&conn->flags)) {
3094
			if (conn->mode == HCI_CM_ACTIVE)
3095
				set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3096
			else
3097
				clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3098
		}
3099

3100
		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3101
			hci_sco_setup(conn, ev->status);
3102 3103 3104 3105 3106
	}

	hci_dev_unlock(hdev);
}

3107
static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3108
{
3109 3110 3111
	struct hci_ev_pin_code_req *ev = (void *) skb->data;
	struct hci_conn *conn;

3112
	BT_DBG("%s", hdev->name);
3113 3114 3115 3116

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3117 3118 3119 3120
	if (!conn)
		goto unlock;

	if (conn->state == BT_CONNECTED) {
3121 3122
		hci_conn_hold(conn);
		conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3123
		hci_conn_drop(conn);
3124 3125
	}

3126
	if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
3127
		hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3128
			     sizeof(ev->bdaddr), &ev->bdaddr);
3129
	else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
3130 3131 3132 3133 3134 3135 3136
		u8 secure;

		if (conn->pending_sec_level == BT_SECURITY_HIGH)
			secure = 1;
		else
			secure = 0;

3137
		mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3138
	}
3139

3140
unlock:
3141
	hci_dev_unlock(hdev);
3142 3143
}

3144
static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3145
{
3146 3147 3148 3149 3150
	struct hci_ev_link_key_req *ev = (void *) skb->data;
	struct hci_cp_link_key_reply cp;
	struct hci_conn *conn;
	struct link_key *key;

3151
	BT_DBG("%s", hdev->name);
3152

3153
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3154 3155 3156 3157 3158 3159
		return;

	hci_dev_lock(hdev);

	key = hci_find_link_key(hdev, &ev->bdaddr);
	if (!key) {
3160 3161
		BT_DBG("%s link key not found for %pMR", hdev->name,
		       &ev->bdaddr);
3162 3163 3164
		goto not_found;
	}

3165 3166
	BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
	       &ev->bdaddr);
3167 3168

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3169
	if (conn) {
3170 3171
		if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
		     key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3172
		    conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3173 3174 3175
			BT_DBG("%s ignoring unauthenticated key", hdev->name);
			goto not_found;
		}
3176

3177
		if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3178 3179
		    (conn->pending_sec_level == BT_SECURITY_HIGH ||
		     conn->pending_sec_level == BT_SECURITY_FIPS)) {
3180 3181
			BT_DBG("%s ignoring key unauthenticated for high security",
			       hdev->name);
3182 3183 3184 3185 3186
			goto not_found;
		}

		conn->key_type = key->type;
		conn->pin_length = key->pin_len;
3187 3188 3189
	}

	bacpy(&cp.bdaddr, &ev->bdaddr);
3190
	memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3191 3192 3193 3194 3195 3196 3197 3198 3199 3200

	hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);

	hci_dev_unlock(hdev);

	return;

not_found:
	hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
	hci_dev_unlock(hdev);
3201 3202
}

3203
static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3204
{
3205 3206
	struct hci_ev_link_key_notify *ev = (void *) skb->data;
	struct hci_conn *conn;
3207 3208
	struct link_key *key;
	bool persistent;
3209
	u8 pin_len = 0;
3210

3211
	BT_DBG("%s", hdev->name);
3212 3213 3214 3215 3216 3217 3218

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (conn) {
		hci_conn_hold(conn);
		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3219
		pin_len = conn->pin_length;
3220 3221 3222 3223

		if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
			conn->key_type = ev->key_type;

3224
		hci_conn_drop(conn);
3225 3226
	}

3227 3228 3229 3230 3231 3232 3233 3234 3235
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
		goto unlock;

	key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
			        ev->key_type, pin_len, &persistent);
	if (!key)
		goto unlock;

	mgmt_new_link_key(hdev, key, persistent);
3236

3237 3238 3239 3240 3241 3242 3243 3244 3245 3246
	/* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
	 * is set. If it's not set simply remove the key from the kernel
	 * list (we've still notified user space about it but with
	 * store_hint being 0).
	 */
	if (key->type == HCI_LK_DEBUG_COMBINATION &&
	    !test_bit(HCI_KEEP_DEBUG_KEYS, &hdev->dev_flags)) {
		list_del(&key->list);
		kfree(key);
	} else if (conn) {
3247 3248 3249 3250
		if (persistent)
			clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
		else
			set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3251
	}
3252 3253

unlock:
3254
	hci_dev_unlock(hdev);
3255 3256
}

3257
static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
Linus Torvalds's avatar
Linus Torvalds committed
3258
{
3259
	struct hci_ev_clock_offset *ev = (void *) skb->data;
3260
	struct hci_conn *conn;
Linus Torvalds's avatar
Linus Torvalds committed
3261

3262
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
Linus Torvalds's avatar
Linus Torvalds committed
3263 3264 3265

	hci_dev_lock(hdev);

3266
	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
Linus Torvalds's avatar
Linus Torvalds committed
3267 3268 3269
	if (conn && !ev->status) {
		struct inquiry_entry *ie;

3270 3271
		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
		if (ie) {
Linus Torvalds's avatar
Linus Torvalds committed
3272 3273 3274 3275 3276 3277 3278 3279
			ie->data.clock_offset = ev->clock_offset;
			ie->timestamp = jiffies;
		}
	}

	hci_dev_unlock(hdev);
}

3280
static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3281 3282 3283 3284
{
	struct hci_ev_pkt_type_change *ev = (void *) skb->data;
	struct hci_conn *conn;

3285
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3286 3287 3288 3289 3290 3291 3292 3293 3294 3295

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
	if (conn && !ev->status)
		conn->pkt_type = __le16_to_cpu(ev->pkt_type);

	hci_dev_unlock(hdev);
}

3296
static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
3297
{
3298
	struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
3299 3300 3301 3302 3303 3304
	struct inquiry_entry *ie;

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

3305 3306
	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
	if (ie) {
3307 3308 3309 3310 3311 3312 3313
		ie->data.pscan_rep_mode = ev->pscan_rep_mode;
		ie->timestamp = jiffies;
	}

	hci_dev_unlock(hdev);
}

3314 3315
static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
					     struct sk_buff *skb)
3316 3317 3318 3319 3320 3321 3322 3323 3324
{
	struct inquiry_data data;
	int num_rsp = *((__u8 *) skb->data);

	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);

	if (!num_rsp)
		return;

3325 3326 3327
	if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
		return;

3328 3329 3330
	hci_dev_lock(hdev);

	if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
3331 3332
		struct inquiry_info_with_rssi_and_pscan_mode *info;
		info = (void *) (skb->data + 1);
3333

3334
		for (; num_rsp; num_rsp--, info++) {
3335 3336
			u32 flags;

3337 3338 3339 3340 3341 3342 3343
			bacpy(&data.bdaddr, &info->bdaddr);
			data.pscan_rep_mode	= info->pscan_rep_mode;
			data.pscan_period_mode	= info->pscan_period_mode;
			data.pscan_mode		= info->pscan_mode;
			memcpy(data.dev_class, info->dev_class, 3);
			data.clock_offset	= info->clock_offset;
			data.rssi		= info->rssi;
3344
			data.ssp_mode		= 0x00;
3345

3346 3347
			flags = hci_inquiry_cache_update(hdev, &data, false);

3348
			mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3349
					  info->dev_class, info->rssi,
3350
					  flags, NULL, 0, NULL, 0);
3351 3352 3353 3354
		}
	} else {
		struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);

3355
		for (; num_rsp; num_rsp--, info++) {
3356 3357
			u32 flags;

3358 3359 3360 3361 3362 3363 3364
			bacpy(&data.bdaddr, &info->bdaddr);
			data.pscan_rep_mode	= info->pscan_rep_mode;
			data.pscan_period_mode	= info->pscan_period_mode;
			data.pscan_mode		= 0x00;
			memcpy(data.dev_class, info->dev_class, 3);
			data.clock_offset	= info->clock_offset;
			data.rssi		= info->rssi;
3365
			data.ssp_mode		= 0x00;
3366 3367 3368

			flags = hci_inquiry_cache_update(hdev, &data, false);

3369
			mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3370
					  info->dev_class, info->rssi,
3371
					  flags, NULL, 0, NULL, 0);
3372 3373 3374 3375 3376 3377
		}
	}

	hci_dev_unlock(hdev);
}

3378 3379
static void hci_remote_ext_features_evt(struct hci_dev *hdev,
					struct sk_buff *skb)
3380
{
3381 3382 3383
	struct hci_ev_remote_ext_features *ev = (void *) skb->data;
	struct hci_conn *conn;

3384
	BT_DBG("%s", hdev->name);
3385 3386 3387 3388

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3389 3390
	if (!conn)
		goto unlock;
3391

3392 3393 3394
	if (ev->page < HCI_MAX_PAGES)
		memcpy(conn->features[ev->page], ev->features, 8);

3395 3396
	if (!ev->status && ev->page == 0x01) {
		struct inquiry_entry *ie;
3397

3398 3399
		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
		if (ie)
3400
			ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3401

3402
		if (ev->features[0] & LMP_HOST_SSP) {
3403
			set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414
		} else {
			/* It is mandatory by the Bluetooth specification that
			 * Extended Inquiry Results are only used when Secure
			 * Simple Pairing is enabled, but some devices violate
			 * this.
			 *
			 * To make these devices work, the internal SSP
			 * enabled flag needs to be cleared if the remote host
			 * features do not indicate SSP support */
			clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
		}
3415 3416 3417

		if (ev->features[0] & LMP_HOST_SC)
			set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
3418 3419 3420 3421 3422
	}

	if (conn->state != BT_CONFIG)
		goto unlock;

3423
	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3424 3425 3426 3427 3428
		struct hci_cp_remote_name_req cp;
		memset(&cp, 0, sizeof(cp));
		bacpy(&cp.bdaddr, &conn->dst);
		cp.pscan_rep_mode = 0x02;
		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3429 3430
	} else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
		mgmt_device_connected(hdev, &conn->dst, conn->type,
3431 3432
				      conn->dst_type, 0, NULL, 0,
				      conn->dev_class);
3433

3434
	if (!hci_outgoing_auth_needed(hdev, conn)) {
3435 3436
		conn->state = BT_CONNECTED;
		hci_proto_connect_cfm(conn, ev->status);
3437
		hci_conn_drop(conn);
3438 3439
	}

3440
unlock:
3441
	hci_dev_unlock(hdev);
3442 3443
}

3444 3445
static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
				       struct sk_buff *skb)
3446
{
3447 3448 3449
	struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
	struct hci_conn *conn;

3450
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3451 3452 3453 3454

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3455 3456 3457 3458 3459 3460 3461 3462 3463 3464
	if (!conn) {
		if (ev->link_type == ESCO_LINK)
			goto unlock;

		conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
		if (!conn)
			goto unlock;

		conn->type = SCO_LINK;
	}
3465

3466 3467
	switch (ev->status) {
	case 0x00:
3468 3469
		conn->handle = __le16_to_cpu(ev->handle);
		conn->state  = BT_CONNECTED;
3470 3471

		hci_conn_add_sysfs(conn);
3472 3473
		break;

3474
	case 0x10:	/* Connection Accept Timeout */
3475
	case 0x0d:	/* Connection Rejected due to Limited Resources */
3476
	case 0x11:	/* Unsupported Feature or Parameter Value */
3477
	case 0x1c:	/* SCO interval rejected */
3478
	case 0x1a:	/* Unsupported Remote Feature */
3479
	case 0x1f:	/* Unspecified error */
3480
	case 0x20:	/* Unsupported LMP Parameter value */
3481
		if (conn->out) {
3482 3483
			conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
					(hdev->esco_type & EDR_ESCO_MASK);
3484 3485
			if (hci_setup_sync(conn, conn->link->handle))
				goto unlock;
3486 3487 3488 3489
		}
		/* fall through */

	default:
3490
		conn->state = BT_CLOSED;
3491 3492
		break;
	}
3493 3494 3495 3496 3497 3498 3499

	hci_proto_connect_cfm(conn, ev->status);
	if (ev->status)
		hci_conn_del(conn);

unlock:
	hci_dev_unlock(hdev);
3500 3501
}

3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518
static inline size_t eir_get_length(u8 *eir, size_t eir_len)
{
	size_t parsed = 0;

	while (parsed < eir_len) {
		u8 field_len = eir[0];

		if (field_len == 0)
			return parsed;

		parsed += field_len + 1;
		eir += field_len + 1;
	}

	return eir_len;
}

3519 3520
static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
					    struct sk_buff *skb)
Linus Torvalds's avatar
Linus Torvalds committed
3521
{
3522 3523 3524
	struct inquiry_data data;
	struct extended_inquiry_info *info = (void *) (skb->data + 1);
	int num_rsp = *((__u8 *) skb->data);
3525
	size_t eir_len;
Linus Torvalds's avatar
Linus Torvalds committed
3526

3527
	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
Linus Torvalds's avatar
Linus Torvalds committed
3528

3529 3530
	if (!num_rsp)
		return;
Linus Torvalds's avatar
Linus Torvalds committed
3531

3532 3533 3534
	if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
		return;

3535 3536
	hci_dev_lock(hdev);

3537
	for (; num_rsp; num_rsp--, info++) {
3538 3539
		u32 flags;
		bool name_known;
3540

3541
		bacpy(&data.bdaddr, &info->bdaddr);
3542 3543 3544
		data.pscan_rep_mode	= info->pscan_rep_mode;
		data.pscan_period_mode	= info->pscan_period_mode;
		data.pscan_mode		= 0x00;
3545
		memcpy(data.dev_class, info->dev_class, 3);
3546 3547
		data.clock_offset	= info->clock_offset;
		data.rssi		= info->rssi;
3548
		data.ssp_mode		= 0x01;
3549

3550
		if (test_bit(HCI_MGMT, &hdev->dev_flags))
3551
			name_known = eir_has_data_type(info->data,
3552 3553
						       sizeof(info->data),
						       EIR_NAME_COMPLETE);
3554 3555 3556
		else
			name_known = true;

3557 3558
		flags = hci_inquiry_cache_update(hdev, &data, name_known);

3559
		eir_len = eir_get_length(info->data, sizeof(info->data));
3560

3561
		mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3562 3563
				  info->dev_class, info->rssi,
				  flags, info->data, eir_len, NULL, 0);
3564 3565 3566 3567
	}

	hci_dev_unlock(hdev);
}
Linus Torvalds's avatar
Linus Torvalds committed
3568

3569 3570 3571 3572 3573 3574
static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
					 struct sk_buff *skb)
{
	struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
	struct hci_conn *conn;

3575
	BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
3576 3577 3578 3579 3580 3581 3582 3583
	       __le16_to_cpu(ev->handle));

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
	if (!conn)
		goto unlock;

3584 3585 3586 3587 3588 3589
	/* For BR/EDR the necessary steps are taken through the
	 * auth_complete event.
	 */
	if (conn->type != LE_LINK)
		goto unlock;

3590 3591 3592 3593 3594 3595
	if (!ev->status)
		conn->sec_level = conn->pending_sec_level;

	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);

	if (ev->status && conn->state == BT_CONNECTED) {
3596
		hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3597
		hci_conn_drop(conn);
3598 3599 3600 3601 3602 3603 3604 3605
		goto unlock;
	}

	if (conn->state == BT_CONFIG) {
		if (!ev->status)
			conn->state = BT_CONNECTED;

		hci_proto_connect_cfm(conn, ev->status);
3606
		hci_conn_drop(conn);
3607 3608 3609 3610 3611
	} else {
		hci_auth_cfm(conn, ev->status);

		hci_conn_hold(conn);
		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3612
		hci_conn_drop(conn);
3613 3614 3615 3616 3617 3618
	}

unlock:
	hci_dev_unlock(hdev);
}

3619
static u8 hci_get_auth_req(struct hci_conn *conn)
3620 3621
{
	/* If remote requests no-bonding follow that lead */
3622 3623
	if (conn->remote_auth == HCI_AT_NO_BONDING ||
	    conn->remote_auth == HCI_AT_NO_BONDING_MITM)
3624
		return conn->remote_auth | (conn->auth_type & 0x01);
3625

3626 3627 3628 3629 3630 3631 3632
	/* If both remote and local have enough IO capabilities, require
	 * MITM protection
	 */
	if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
	    conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
		return conn->remote_auth | 0x01;

3633 3634
	/* No MITM protection possible so ignore remote requirement */
	return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
3635 3636
}

3637
static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3638 3639 3640 3641 3642 3643 3644 3645 3646
{
	struct hci_ev_io_capa_request *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3647 3648 3649 3650 3651
	if (!conn)
		goto unlock;

	hci_conn_hold(conn);

3652
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3653 3654
		goto unlock;

3655
	if (test_bit(HCI_PAIRABLE, &hdev->dev_flags) ||
3656
	    (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
3657 3658 3659
		struct hci_cp_io_capability_reply cp;

		bacpy(&cp.bdaddr, &ev->bdaddr);
3660 3661 3662
		/* Change the IO capability from KeyboardDisplay
		 * to DisplayYesNo as it is not supported by BT spec. */
		cp.capability = (conn->io_capability == 0x04) ?
3663
				HCI_IO_DISPLAY_YESNO : conn->io_capability;
3664 3665 3666 3667

		/* If we are initiators, there is no remote information yet */
		if (conn->remote_auth == 0xff) {
			cp.authentication = conn->auth_type;
3668

3669
			/* Request MITM protection if our IO caps allow it
3670 3671 3672 3673 3674
			 * except for the no-bonding case.
			 * conn->auth_type is not updated here since
			 * that might cause the user confirmation to be
			 * rejected in case the remote doesn't have the
			 * IO capabilities for MITM.
3675
			 */
3676
			if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3677
			    cp.authentication != HCI_AT_NO_BONDING)
3678
				cp.authentication |= 0x01;
3679 3680 3681 3682
		} else {
			conn->auth_type = hci_get_auth_req(conn);
			cp.authentication = conn->auth_type;
		}
3683

3684 3685
		if (hci_find_remote_oob_data(hdev, &conn->dst) &&
		    (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)))
3686 3687 3688 3689
			cp.oob_data = 0x01;
		else
			cp.oob_data = 0x00;

3690
		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
3691
			     sizeof(cp), &cp);
3692 3693 3694 3695
	} else {
		struct hci_cp_io_capability_neg_reply cp;

		bacpy(&cp.bdaddr, &ev->bdaddr);
3696
		cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
3697

3698
		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
3699
			     sizeof(cp), &cp);
3700 3701 3702 3703 3704 3705
	}

unlock:
	hci_dev_unlock(hdev);
}

3706
static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720
{
	struct hci_ev_io_capa_reply *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (!conn)
		goto unlock;

	conn->remote_cap = ev->capability;
	conn->remote_auth = ev->authentication;
3721 3722
	if (ev->oob_data)
		set_bit(HCI_CONN_REMOTE_OOB, &conn->flags);
3723 3724

unlock:
3725 3726 3727
	hci_dev_unlock(hdev);
}

3728 3729
static void hci_user_confirm_request_evt(struct hci_dev *hdev,
					 struct sk_buff *skb)
3730 3731
{
	struct hci_ev_user_confirm_req *ev = (void *) skb->data;
3732
	int loc_mitm, rem_mitm, confirm_hint = 0;
3733
	struct hci_conn *conn;
3734 3735 3736 3737 3738

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

3739
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3740
		goto unlock;
3741

3742 3743 3744 3745 3746 3747 3748 3749
	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (!conn)
		goto unlock;

	loc_mitm = (conn->auth_type & 0x01);
	rem_mitm = (conn->remote_auth & 0x01);

	/* If we require MITM but the remote device can't provide that
3750 3751 3752
	 * (it has NoInputNoOutput) then reject the confirmation request
	 */
	if (loc_mitm && conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
3753 3754
		BT_DBG("Rejecting request: remote device can't provide MITM");
		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
3755
			     sizeof(ev->bdaddr), &ev->bdaddr);
3756 3757 3758 3759
		goto unlock;
	}

	/* If no side requires MITM protection; auto-accept */
3760 3761
	if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
	    (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
3762 3763 3764

		/* If we're not the initiators request authorization to
		 * proceed from user space (mgmt_user_confirm with
3765 3766 3767 3768 3769
		 * confirm_hint set to 1). The exception is if neither
		 * side had MITM in which case we do auto-accept.
		 */
		if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
		    (loc_mitm || rem_mitm)) {
3770 3771 3772 3773 3774
			BT_DBG("Confirming auto-accept as acceptor");
			confirm_hint = 1;
			goto confirm;
		}

3775
		BT_DBG("Auto-accept of user confirmation with %ums delay",
3776
		       hdev->auto_accept_delay);
3777 3778 3779

		if (hdev->auto_accept_delay > 0) {
			int delay = msecs_to_jiffies(hdev->auto_accept_delay);
3780 3781
			queue_delayed_work(conn->hdev->workqueue,
					   &conn->auto_accept_work, delay);
3782 3783 3784
			goto unlock;
		}

3785
		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
3786
			     sizeof(ev->bdaddr), &ev->bdaddr);
3787 3788 3789
		goto unlock;
	}

3790
confirm:
3791 3792
	mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
				  le32_to_cpu(ev->passkey), confirm_hint);
3793 3794

unlock:
3795 3796 3797
	hci_dev_unlock(hdev);
}

3798 3799
static void hci_user_passkey_request_evt(struct hci_dev *hdev,
					 struct sk_buff *skb)
3800 3801 3802 3803 3804
{
	struct hci_ev_user_passkey_req *ev = (void *) skb->data;

	BT_DBG("%s", hdev->name);

3805
	if (test_bit(HCI_MGMT, &hdev->dev_flags))
3806
		mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
3807 3808
}

3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867
static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
					struct sk_buff *skb)
{
	struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (!conn)
		return;

	conn->passkey_notify = __le32_to_cpu(ev->passkey);
	conn->passkey_entered = 0;

	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
					 conn->dst_type, conn->passkey_notify,
					 conn->passkey_entered);
}

static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_ev_keypress_notify *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (!conn)
		return;

	switch (ev->type) {
	case HCI_KEYPRESS_STARTED:
		conn->passkey_entered = 0;
		return;

	case HCI_KEYPRESS_ENTERED:
		conn->passkey_entered++;
		break;

	case HCI_KEYPRESS_ERASED:
		conn->passkey_entered--;
		break;

	case HCI_KEYPRESS_CLEARED:
		conn->passkey_entered = 0;
		break;

	case HCI_KEYPRESS_COMPLETED:
		return;
	}

	if (test_bit(HCI_MGMT, &hdev->dev_flags))
		mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
					 conn->dst_type, conn->passkey_notify,
					 conn->passkey_entered);
}

3868 3869
static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
					 struct sk_buff *skb)
3870 3871 3872 3873 3874 3875 3876 3877 3878
{
	struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3879 3880 3881 3882 3883 3884 3885 3886
	if (!conn)
		goto unlock;

	/* To avoid duplicate auth_failed events to user space we check
	 * the HCI_CONN_AUTH_PEND flag which will be set if we
	 * initiated the authentication. A traditional auth_complete
	 * event gets always produced as initiator and is also mapped to
	 * the mgmt_auth_failed event */
3887
	if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
3888
		mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
3889
				 ev->status);
3890

3891
	hci_conn_drop(conn);
3892 3893

unlock:
3894 3895 3896
	hci_dev_unlock(hdev);
}

3897 3898
static void hci_remote_host_features_evt(struct hci_dev *hdev,
					 struct sk_buff *skb)
3899 3900 3901
{
	struct hci_ev_remote_host_features *ev = (void *) skb->data;
	struct inquiry_entry *ie;
3902
	struct hci_conn *conn;
3903 3904 3905 3906 3907

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

3908 3909 3910 3911
	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
	if (conn)
		memcpy(conn->features[1], ev->features, 8);

3912 3913
	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
	if (ie)
3914
		ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3915 3916 3917 3918

	hci_dev_unlock(hdev);
}

3919 3920
static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
					    struct sk_buff *skb)
3921 3922 3923 3924 3925 3926 3927 3928
{
	struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
	struct oob_data *data;

	BT_DBG("%s", hdev->name);

	hci_dev_lock(hdev);

3929
	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3930 3931
		goto unlock;

3932 3933
	data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
	if (data) {
3934 3935
		if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) {
			struct hci_cp_remote_oob_ext_data_reply cp;
3936

3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948
			bacpy(&cp.bdaddr, &ev->bdaddr);
			memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
			memcpy(cp.randomizer192, data->randomizer192,
			       sizeof(cp.randomizer192));
			memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
			memcpy(cp.randomizer256, data->randomizer256,
			       sizeof(cp.randomizer256));

			hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
				     sizeof(cp), &cp);
		} else {
			struct hci_cp_remote_oob_data_reply cp;
3949

3950 3951 3952 3953 3954 3955 3956 3957
			bacpy(&cp.bdaddr, &ev->bdaddr);
			memcpy(cp.hash, data->hash192, sizeof(cp.hash));
			memcpy(cp.randomizer, data->randomizer192,
			       sizeof(cp.randomizer));

			hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
				     sizeof(cp), &cp);
		}
3958 3959 3960 3961
	} else {
		struct hci_cp_remote_oob_data_neg_reply cp;

		bacpy(&cp.bdaddr, &ev->bdaddr);
3962 3963
		hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
			     sizeof(cp), &cp);
3964 3965
	}

3966
unlock:
3967 3968 3969
	hci_dev_unlock(hdev);
}

3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999
static void hci_phy_link_complete_evt(struct hci_dev *hdev,
				      struct sk_buff *skb)
{
	struct hci_ev_phy_link_complete *ev = (void *) skb->data;
	struct hci_conn *hcon, *bredr_hcon;

	BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
	       ev->status);

	hci_dev_lock(hdev);

	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
	if (!hcon) {
		hci_dev_unlock(hdev);
		return;
	}

	if (ev->status) {
		hci_conn_del(hcon);
		hci_dev_unlock(hdev);
		return;
	}

	bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;

	hcon->state = BT_CONNECTED;
	bacpy(&hcon->dst, &bredr_hcon->dst);

	hci_conn_hold(hcon);
	hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4000
	hci_conn_drop(hcon);
4001 4002 4003

	hci_conn_add_sysfs(hcon);

4004
	amp_physical_cfm(bredr_hcon, hcon);
4005

4006
	hci_dev_unlock(hdev);
4007 4008
}

4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046
static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_ev_logical_link_complete *ev = (void *) skb->data;
	struct hci_conn *hcon;
	struct hci_chan *hchan;
	struct amp_mgr *mgr;

	BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
	       hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
	       ev->status);

	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
	if (!hcon)
		return;

	/* Create AMP hchan */
	hchan = hci_chan_create(hcon);
	if (!hchan)
		return;

	hchan->handle = le16_to_cpu(ev->handle);

	BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);

	mgr = hcon->amp_mgr;
	if (mgr && mgr->bredr_chan) {
		struct l2cap_chan *bredr_chan = mgr->bredr_chan;

		l2cap_chan_lock(bredr_chan);

		bredr_chan->conn->mtu = hdev->block_mtu;
		l2cap_logical_cfm(bredr_chan, hchan, 0);
		hci_conn_hold(hcon);

		l2cap_chan_unlock(bredr_chan);
	}
}

4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070
static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
					     struct sk_buff *skb)
{
	struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
	struct hci_chan *hchan;

	BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
	       le16_to_cpu(ev->handle), ev->status);

	if (ev->status)
		return;

	hci_dev_lock(hdev);

	hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
	if (!hchan)
		goto unlock;

	amp_destroy_logical_link(hchan, ev->reason);

unlock:
	hci_dev_unlock(hdev);
}

4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092
static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
					     struct sk_buff *skb)
{
	struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
	struct hci_conn *hcon;

	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);

	if (ev->status)
		return;

	hci_dev_lock(hdev);

	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
	if (hcon) {
		hcon->state = BT_CLOSED;
		hci_conn_del(hcon);
	}

	hci_dev_unlock(hdev);
}

4093
static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4094 4095
{
	struct hci_ev_le_conn_complete *ev = (void *) skb->data;
4096
	struct hci_conn_params *params;
4097
	struct hci_conn *conn;
4098
	struct smp_irk *irk;
4099
	u8 addr_type;
4100

4101
	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4102 4103 4104

	hci_dev_lock(hdev);

4105 4106 4107 4108 4109
	/* All controllers implicitly stop advertising in the event of a
	 * connection, so ensure that the state bit is cleared.
	 */
	clear_bit(HCI_LE_ADV, &hdev->dev_flags);

4110
	conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
4111 4112 4113 4114
	if (!conn) {
		conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
		if (!conn) {
			BT_ERR("No memory for new connection");
4115
			goto unlock;
4116
		}
4117 4118

		conn->dst_type = ev->bdaddr_type;
4119 4120 4121

		if (ev->role == LE_CONN_ROLE_MASTER) {
			conn->out = true;
4122
			set_bit(HCI_CONN_MASTER, &conn->flags);
4123
		}
4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144

		/* If we didn't have a hci_conn object previously
		 * but we're in master role this must be something
		 * initiated using a white list. Since white list based
		 * connections are not "first class citizens" we don't
		 * have full tracking of them. Therefore, we go ahead
		 * with a "best effort" approach of determining the
		 * initiator address based on the HCI_PRIVACY flag.
		 */
		if (conn->out) {
			conn->resp_addr_type = ev->bdaddr_type;
			bacpy(&conn->resp_addr, &ev->bdaddr);
			if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) {
				conn->init_addr_type = ADDR_LE_DEV_RANDOM;
				bacpy(&conn->init_addr, &hdev->rpa);
			} else {
				hci_copy_identity_address(hdev,
							  &conn->init_addr,
							  &conn->init_addr_type);
			}
		}
4145 4146
	} else {
		cancel_delayed_work(&conn->le_conn_timeout);
4147
	}
4148

4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160
	if (!conn->out) {
		/* Set the responder (our side) address type based on
		 * the advertising address type.
		 */
		conn->resp_addr_type = hdev->adv_addr_type;
		if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
			bacpy(&conn->resp_addr, &hdev->random_addr);
		else
			bacpy(&conn->resp_addr, &hdev->bdaddr);

		conn->init_addr_type = ev->bdaddr_type;
		bacpy(&conn->init_addr, &ev->bdaddr);
4161 4162 4163 4164 4165 4166 4167 4168

		/* For incoming connections, set the default minimum
		 * and maximum connection interval. They will be used
		 * to check if the parameters are in range and if not
		 * trigger the connection update procedure.
		 */
		conn->le_conn_min_interval = hdev->le_conn_min_interval;
		conn->le_conn_max_interval = hdev->le_conn_max_interval;
4169
	}
4170

4171 4172 4173 4174 4175 4176 4177 4178 4179 4180
	/* Lookup the identity address from the stored connection
	 * address and address type.
	 *
	 * When establishing connections to an identity address, the
	 * connection procedure will store the resolvable random
	 * address first. Now if it can be converted back into the
	 * identity address, start using the identity address from
	 * now on.
	 */
	irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4181 4182 4183 4184 4185
	if (irk) {
		bacpy(&conn->dst, &irk->bdaddr);
		conn->dst_type = irk->addr_type;
	}

4186 4187 4188 4189 4190 4191
	if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
		addr_type = BDADDR_LE_PUBLIC;
	else
		addr_type = BDADDR_LE_RANDOM;

	/* Drop the connection if he device is blocked */
4192
	if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4193 4194 4195 4196
		hci_conn_drop(conn);
		goto unlock;
	}

4197
	if (ev->status) {
4198
		hci_le_conn_failed(conn, ev->status);
4199 4200 4201
		goto unlock;
	}

4202
	if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4203
		mgmt_device_connected(hdev, &conn->dst, conn->type,
4204
				      conn->dst_type, 0, NULL, 0, NULL);
4205

4206
	conn->sec_level = BT_SECURITY_LOW;
4207 4208 4209
	conn->handle = __le16_to_cpu(ev->handle);
	conn->state = BT_CONNECTED;

4210 4211 4212 4213
	conn->le_conn_interval = le16_to_cpu(ev->interval);
	conn->le_conn_latency = le16_to_cpu(ev->latency);
	conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);

4214 4215 4216 4217
	hci_conn_add_sysfs(conn);

	hci_proto_connect_cfm(conn, ev->status);

4218
	params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
4219
	if (params)
4220
		list_del_init(&params->action);
4221

4222
unlock:
4223
	hci_update_background_scan(hdev);
4224 4225 4226
	hci_dev_unlock(hdev);
}

4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249
static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
					    struct sk_buff *skb)
{
	struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
	struct hci_conn *conn;

	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);

	if (ev->status)
		return;

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
	if (conn) {
		conn->le_conn_interval = le16_to_cpu(ev->interval);
		conn->le_conn_latency = le16_to_cpu(ev->latency);
		conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
	}

	hci_dev_unlock(hdev);
}

4250
/* This function requires the caller holds hdev->lock */
4251
static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr,
4252
				  u8 addr_type, u8 adv_type)
4253 4254 4255
{
	struct hci_conn *conn;

4256 4257
	/* If the event is not connectable don't proceed further */
	if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
4258
		return;
4259 4260

	/* Ignore if the device is blocked */
4261
	if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
4262
		return;
4263 4264 4265 4266 4267 4268 4269 4270 4271

	/* If we're connectable, always connect any ADV_DIRECT_IND event */
	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) &&
	    adv_type == LE_ADV_DIRECT_IND)
		goto connect;

	/* If we're not connectable only connect devices that we have in
	 * our pend_le_conns list.
	 */
4272
	if (!hci_pend_le_action_lookup(&hdev->pend_le_conns, addr, addr_type))
4273
		return;
4274

4275
connect:
4276
	/* Request connection in master = true role */
4277
	conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
4278
			      HCI_LE_AUTOCONN_TIMEOUT, true);
4279
	if (!IS_ERR(conn))
4280
		return;
4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294

	switch (PTR_ERR(conn)) {
	case -EBUSY:
		/* If hci_connect() returns -EBUSY it means there is already
		 * an LE connection attempt going on. Since controllers don't
		 * support more than one connection attempt at the time, we
		 * don't consider this an error case.
		 */
		break;
	default:
		BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
	}
}

4295 4296 4297
static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
			       u8 bdaddr_type, s8 rssi, u8 *data, u8 len)
{
4298
	struct discovery_state *d = &hdev->discovery;
4299
	struct smp_irk *irk;
4300
	bool match;
4301
	u32 flags;
4302

4303 4304 4305 4306 4307 4308 4309 4310 4311 4312
	/* Check if we need to convert to identity address */
	irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
	if (irk) {
		bdaddr = &irk->bdaddr;
		bdaddr_type = irk->addr_type;
	}

	/* Check if we have been requested to connect to this device */
	check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);

4313 4314 4315 4316
	/* Passive scanning shouldn't trigger any device found events,
	 * except for devices marked as CONN_REPORT for which we do send
	 * device found events.
	 */
4317
	if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
4318 4319 4320 4321 4322
		struct hci_conn_params *param;

		if (type == LE_ADV_DIRECT_IND)
			return;

4323 4324 4325
		param = hci_pend_le_action_lookup(&hdev->pend_le_reports,
						  bdaddr, bdaddr_type);
		if (!param)
4326 4327 4328 4329 4330 4331 4332 4333
			return;

		if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
			flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
		else
			flags = 0;
		mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
				  rssi, flags, data, len, NULL, 0);
4334
		return;
4335
	}
4336

4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357
	/* When receiving non-connectable or scannable undirected
	 * advertising reports, this means that the remote device is
	 * not connectable and then clearly indicate this in the
	 * device found event.
	 *
	 * When receiving a scan response, then there is no way to
	 * know if the remote device is connectable or not. However
	 * since scan responses are merged with a previously seen
	 * advertising report, the flags field from that report
	 * will be used.
	 *
	 * In the really unlikely case that a controller get confused
	 * and just sends a scan response event, then it is marked as
	 * not connectable as well.
	 */
	if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
	    type == LE_ADV_SCAN_RSP)
		flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
	else
		flags = 0;

4358 4359 4360 4361 4362 4363 4364 4365 4366 4367
	/* If there's nothing pending either store the data from this
	 * event or send an immediate device found event if the data
	 * should not be stored for later.
	 */
	if (!has_pending_adv_report(hdev)) {
		/* If the report will trigger a SCAN_REQ store it for
		 * later merging.
		 */
		if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
			store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4368
						 rssi, flags, data, len);
4369 4370 4371 4372
			return;
		}

		mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4373
				  rssi, flags, data, len, NULL, 0);
4374 4375 4376
		return;
	}

4377 4378 4379 4380
	/* Check if the pending report is for the same device as the new one */
	match = (!bacmp(bdaddr, &d->last_adv_addr) &&
		 bdaddr_type == d->last_adv_addr_type);

4381 4382 4383 4384
	/* If the pending data doesn't match this report or this isn't a
	 * scan response (e.g. we got a duplicate ADV_IND) then force
	 * sending of the pending data.
	 */
4385 4386 4387 4388
	if (type != LE_ADV_SCAN_RSP || !match) {
		/* Send out whatever is in the cache, but skip duplicates */
		if (!match)
			mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4389
					  d->last_adv_addr_type, NULL,
4390
					  d->last_adv_rssi, d->last_adv_flags,
4391
					  d->last_adv_data,
4392
					  d->last_adv_data_len, NULL, 0);
4393 4394 4395 4396 4397 4398

		/* If the new report will trigger a SCAN_REQ store it for
		 * later merging.
		 */
		if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
			store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4399
						 rssi, flags, data, len);
4400 4401 4402 4403 4404 4405 4406
			return;
		}

		/* The advertising reports cannot be merged, so clear
		 * the pending report and send out a device found event.
		 */
		clear_pending_adv_report(hdev);
4407
		mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4408
				  rssi, flags, data, len, NULL, 0);
4409 4410 4411 4412 4413 4414 4415 4416
		return;
	}

	/* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
	 * the new event is a SCAN_RSP. We can therefore proceed with
	 * sending a merged device found event.
	 */
	mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4417
			  d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
4418
			  d->last_adv_data, d->last_adv_data_len, data, len);
4419
	clear_pending_adv_report(hdev);
4420 4421
}

4422
static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
4423
{
4424 4425
	u8 num_reports = skb->data[0];
	void *ptr = &skb->data[1];
4426

4427 4428
	hci_dev_lock(hdev);

4429 4430
	while (num_reports--) {
		struct hci_ev_le_advertising_info *ev = ptr;
4431
		s8 rssi;
4432

Andre Guedes's avatar
Andre Guedes committed
4433
		rssi = ev->data[ev->length];
4434 4435
		process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
				   ev->bdaddr_type, rssi, ev->data, ev->length);
Andre Guedes's avatar
Andre Guedes committed
4436

4437
		ptr += sizeof(*ev) + ev->length + 1;
4438
	}
4439 4440

	hci_dev_unlock(hdev);
4441 4442
}

4443
static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4444 4445 4446
{
	struct hci_ev_le_ltk_req *ev = (void *) skb->data;
	struct hci_cp_le_ltk_reply cp;
4447
	struct hci_cp_le_ltk_neg_reply neg;
4448
	struct hci_conn *conn;
4449
	struct smp_ltk *ltk;
4450

4451
	BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
4452 4453 4454 4455

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4456 4457
	if (conn == NULL)
		goto not_found;
4458

4459
	ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->out);
4460 4461 4462 4463
	if (ltk == NULL)
		goto not_found;

	memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
4464
	cp.handle = cpu_to_le16(conn->handle);
4465 4466

	if (ltk->authenticated)
4467 4468 4469
		conn->pending_sec_level = BT_SECURITY_HIGH;
	else
		conn->pending_sec_level = BT_SECURITY_MEDIUM;
4470

4471
	conn->enc_key_size = ltk->enc_size;
4472 4473 4474

	hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);

4475 4476 4477 4478 4479 4480
	/* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
	 * temporary key used to encrypt a connection following
	 * pairing. It is used during the Encrypted Session Setup to
	 * distribute the keys. Later, security can be re-established
	 * using a distributed LTK.
	 */
4481
	if (ltk->type == SMP_STK) {
4482
		set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4483 4484
		list_del(&ltk->list);
		kfree(ltk);
4485 4486
	} else {
		clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4487 4488
	}

4489
	hci_dev_unlock(hdev);
4490 4491 4492 4493 4494 4495 4496

	return;

not_found:
	neg.handle = ev->handle;
	hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
	hci_dev_unlock(hdev);
4497 4498
}

4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533
static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
				      u8 reason)
{
	struct hci_cp_le_conn_param_req_neg_reply cp;

	cp.handle = cpu_to_le16(handle);
	cp.reason = reason;

	hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
		     &cp);
}

static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
					     struct sk_buff *skb)
{
	struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
	struct hci_cp_le_conn_param_req_reply cp;
	struct hci_conn *hcon;
	u16 handle, min, max, latency, timeout;

	handle = le16_to_cpu(ev->handle);
	min = le16_to_cpu(ev->interval_min);
	max = le16_to_cpu(ev->interval_max);
	latency = le16_to_cpu(ev->latency);
	timeout = le16_to_cpu(ev->timeout);

	hcon = hci_conn_hash_lookup_handle(hdev, handle);
	if (!hcon || hcon->state != BT_CONNECTED)
		return send_conn_param_neg_reply(hdev, handle,
						 HCI_ERROR_UNKNOWN_CONN_ID);

	if (hci_check_conn_params(min, max, latency, timeout))
		return send_conn_param_neg_reply(hdev, handle,
						 HCI_ERROR_INVALID_LL_PARAMS);

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	if (test_bit(HCI_CONN_MASTER, &hcon->flags)) {
		struct hci_conn_params *params;
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		u8 store_hint;
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		hci_dev_lock(hdev);

		params = hci_conn_params_lookup(hdev, &hcon->dst,
						hcon->dst_type);
		if (params) {
			params->conn_min_interval = min;
			params->conn_max_interval = max;
			params->conn_latency = latency;
			params->supervision_timeout = timeout;
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			store_hint = 0x01;
		} else{
			store_hint = 0x00;
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		}

		hci_dev_unlock(hdev);

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		mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
				    store_hint, min, max, latency, timeout);
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	}
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	cp.handle = ev->handle;
	cp.interval_min = ev->interval_min;
	cp.interval_max = ev->interval_max;
	cp.latency = ev->latency;
	cp.timeout = ev->timeout;
	cp.min_ce_len = 0;
	cp.max_ce_len = 0;

	hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
}

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static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
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{
	struct hci_ev_le_meta *le_ev = (void *) skb->data;

	skb_pull(skb, sizeof(*le_ev));

	switch (le_ev->subevent) {
	case HCI_EV_LE_CONN_COMPLETE:
		hci_le_conn_complete_evt(hdev, skb);
		break;

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	case HCI_EV_LE_CONN_UPDATE_COMPLETE:
		hci_le_conn_update_complete_evt(hdev, skb);
		break;

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	case HCI_EV_LE_ADVERTISING_REPORT:
		hci_le_adv_report_evt(hdev, skb);
		break;

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	case HCI_EV_LE_LTK_REQ:
		hci_le_ltk_request_evt(hdev, skb);
		break;

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	case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
		hci_le_remote_conn_param_req_evt(hdev, skb);
		break;

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	default:
		break;
	}
}

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static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_ev_channel_selected *ev = (void *) skb->data;
	struct hci_conn *hcon;

	BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);

	skb_pull(skb, sizeof(*ev));

	hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
	if (!hcon)
		return;

	amp_read_loc_assoc_final_data(hdev, hcon);
}

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void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_event_hdr *hdr = (void *) skb->data;
	__u8 event = hdr->evt;

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	hci_dev_lock(hdev);

	/* Received events are (currently) only needed when a request is
	 * ongoing so avoid unnecessary memory allocation.
	 */
	if (hdev->req_status == HCI_REQ_PEND) {
		kfree_skb(hdev->recv_evt);
		hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
	}

	hci_dev_unlock(hdev);

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	skb_pull(skb, HCI_EVENT_HDR_SIZE);

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	if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
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		struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
		u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
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		hci_req_cmd_complete(hdev, opcode, 0);
	}

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	switch (event) {
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	case HCI_EV_INQUIRY_COMPLETE:
		hci_inquiry_complete_evt(hdev, skb);
		break;

	case HCI_EV_INQUIRY_RESULT:
		hci_inquiry_result_evt(hdev, skb);
		break;

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	case HCI_EV_CONN_COMPLETE:
		hci_conn_complete_evt(hdev, skb);
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		break;

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	case HCI_EV_CONN_REQUEST:
		hci_conn_request_evt(hdev, skb);
		break;

	case HCI_EV_DISCONN_COMPLETE:
		hci_disconn_complete_evt(hdev, skb);
		break;

	case HCI_EV_AUTH_COMPLETE:
		hci_auth_complete_evt(hdev, skb);
		break;

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	case HCI_EV_REMOTE_NAME:
		hci_remote_name_evt(hdev, skb);
		break;

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	case HCI_EV_ENCRYPT_CHANGE:
		hci_encrypt_change_evt(hdev, skb);
		break;

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	case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
		hci_change_link_key_complete_evt(hdev, skb);
		break;

	case HCI_EV_REMOTE_FEATURES:
		hci_remote_features_evt(hdev, skb);
		break;

	case HCI_EV_CMD_COMPLETE:
		hci_cmd_complete_evt(hdev, skb);
		break;

	case HCI_EV_CMD_STATUS:
		hci_cmd_status_evt(hdev, skb);
		break;

	case HCI_EV_ROLE_CHANGE:
		hci_role_change_evt(hdev, skb);
		break;

	case HCI_EV_NUM_COMP_PKTS:
		hci_num_comp_pkts_evt(hdev, skb);
		break;

	case HCI_EV_MODE_CHANGE:
		hci_mode_change_evt(hdev, skb);
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		break;

	case HCI_EV_PIN_CODE_REQ:
		hci_pin_code_request_evt(hdev, skb);
		break;

	case HCI_EV_LINK_KEY_REQ:
		hci_link_key_request_evt(hdev, skb);
		break;

	case HCI_EV_LINK_KEY_NOTIFY:
		hci_link_key_notify_evt(hdev, skb);
		break;

	case HCI_EV_CLOCK_OFFSET:
		hci_clock_offset_evt(hdev, skb);
		break;

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	case HCI_EV_PKT_TYPE_CHANGE:
		hci_pkt_type_change_evt(hdev, skb);
		break;

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	case HCI_EV_PSCAN_REP_MODE:
		hci_pscan_rep_mode_evt(hdev, skb);
		break;

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	case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
		hci_inquiry_result_with_rssi_evt(hdev, skb);
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		break;

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	case HCI_EV_REMOTE_EXT_FEATURES:
		hci_remote_ext_features_evt(hdev, skb);
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		break;

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	case HCI_EV_SYNC_CONN_COMPLETE:
		hci_sync_conn_complete_evt(hdev, skb);
		break;
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	case HCI_EV_EXTENDED_INQUIRY_RESULT:
		hci_extended_inquiry_result_evt(hdev, skb);
		break;
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	case HCI_EV_KEY_REFRESH_COMPLETE:
		hci_key_refresh_complete_evt(hdev, skb);
		break;

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	case HCI_EV_IO_CAPA_REQUEST:
		hci_io_capa_request_evt(hdev, skb);
		break;

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	case HCI_EV_IO_CAPA_REPLY:
		hci_io_capa_reply_evt(hdev, skb);
		break;

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	case HCI_EV_USER_CONFIRM_REQUEST:
		hci_user_confirm_request_evt(hdev, skb);
		break;

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	case HCI_EV_USER_PASSKEY_REQUEST:
		hci_user_passkey_request_evt(hdev, skb);
		break;

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	case HCI_EV_USER_PASSKEY_NOTIFY:
		hci_user_passkey_notify_evt(hdev, skb);
		break;

	case HCI_EV_KEYPRESS_NOTIFY:
		hci_keypress_notify_evt(hdev, skb);
		break;

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	case HCI_EV_SIMPLE_PAIR_COMPLETE:
		hci_simple_pair_complete_evt(hdev, skb);
		break;

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	case HCI_EV_REMOTE_HOST_FEATURES:
		hci_remote_host_features_evt(hdev, skb);
		break;

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	case HCI_EV_LE_META:
		hci_le_meta_evt(hdev, skb);
		break;

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	case HCI_EV_CHANNEL_SELECTED:
		hci_chan_selected_evt(hdev, skb);
		break;

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	case HCI_EV_REMOTE_OOB_DATA_REQUEST:
		hci_remote_oob_data_request_evt(hdev, skb);
		break;

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	case HCI_EV_PHY_LINK_COMPLETE:
		hci_phy_link_complete_evt(hdev, skb);
		break;

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	case HCI_EV_LOGICAL_LINK_COMPLETE:
		hci_loglink_complete_evt(hdev, skb);
		break;

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	case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
		hci_disconn_loglink_complete_evt(hdev, skb);
		break;

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	case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
		hci_disconn_phylink_complete_evt(hdev, skb);
		break;

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	case HCI_EV_NUM_COMP_BLOCKS:
		hci_num_comp_blocks_evt(hdev, skb);
		break;

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	default:
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		BT_DBG("%s event 0x%2.2x", hdev->name, event);
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		break;
	}

	kfree_skb(skb);
	hdev->stat.evt_rx++;
}