Release 4.11 net/bluetooth/hci_core.c

/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated
   Copyright (C) 2011 ProFUSION Embedded Systems

   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
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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

/* Bluetooth HCI core. */

#include <linux/export.h>
#include <linux/idr.h>
#include <linux/rfkill.h>
#include <linux/debugfs.h>
#include <linux/crypto.h>
#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/mgmt.h>

#include "hci_request.h"
#include "hci_debugfs.h"
#include "smp.h"
#include "leds.h"

static void hci_rx_work(struct work_struct *work);
static void hci_cmd_work(struct work_struct *work);
static void hci_tx_work(struct work_struct *work);

/* HCI device list */

LIST_HEAD(hci_dev_list);

DEFINE_RWLOCK(hci_dev_list_lock);

/* HCI callback list */

LIST_HEAD(hci_cb_list);

DEFINE_MUTEX(hci_cb_list_lock);

/* HCI ID Numbering */
static DEFINE_IDA(hci_index_ida);

/* ---- HCI debugfs entries ---- */



static ssize_t dut_mode_read(struct file *file, char __user *user_buf,
			     size_t count, loff_t *ppos)
{
	struct hci_dev *hdev = file->private_data;
	char buf[3];

	buf[0] = hci_dev_test_flag(hdev, HCI_DUT_MODE) ? 'Y' : 'N';
	buf[1] = '\n';
	buf[2] = '\0';
	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}

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static ssize_t dut_mode_write(struct file *file, const char __user *user_buf,
			      size_t count, loff_t *ppos)
{
	struct hci_dev *hdev = file->private_data;
	struct sk_buff *skb;
	char buf[32];
	size_t buf_size = min(count, (sizeof(buf)-1));
	bool enable;

	if (!test_bit(HCI_UP, &hdev->flags))
		return -ENETDOWN;

	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;

	buf[buf_size] = '\0';
	if (strtobool(buf, &enable))
		return -EINVAL;

	if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE))
		return -EALREADY;

	hci_req_sync_lock(hdev);
	if (enable)
		skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL,
				     HCI_CMD_TIMEOUT);
	else
		skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL,
				     HCI_CMD_TIMEOUT);
	hci_req_sync_unlock(hdev);

	if (IS_ERR(skb))
		return PTR_ERR(skb);

	kfree_skb(skb);

	hci_dev_change_flag(hdev, HCI_DUT_MODE);

	return count;
}

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static const struct file_operations dut_mode_fops = {
	.open		= simple_open,
	.read		= dut_mode_read,
	.write		= dut_mode_write,
	.llseek		= default_llseek,
};



static ssize_t vendor_diag_read(struct file *file, char __user *user_buf,
				size_t count, loff_t *ppos)
{
	struct hci_dev *hdev = file->private_data;
	char buf[3];

	buf[0] = hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) ? 'Y' : 'N';
	buf[1] = '\n';
	buf[2] = '\0';
	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}

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static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf,
				 size_t count, loff_t *ppos)
{
	struct hci_dev *hdev = file->private_data;
	char buf[32];
	size_t buf_size = min(count, (sizeof(buf)-1));
	bool enable;
	int err;

	if (copy_from_user(buf, user_buf, buf_size))
		return -EFAULT;

	buf[buf_size] = '\0';
	if (strtobool(buf, &enable))
		return -EINVAL;

	/* When the diagnostic flags are not persistent and the transport
         * is not active, then there is no need for the vendor callback.
         *
         * Instead just store the desired value. If needed the setting
         * will be programmed when the controller gets powered on.
         */
	if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) &&
	    !test_bit(HCI_RUNNING, &hdev->flags))
		goto done;

	hci_req_sync_lock(hdev);
	err = hdev->set_diag(hdev, enable);
	hci_req_sync_unlock(hdev);

	if (err < 0)
		return err;

done:
	if (enable)
		hci_dev_set_flag(hdev, HCI_VENDOR_DIAG);
	else
		hci_dev_clear_flag(hdev, HCI_VENDOR_DIAG);

	return count;
}

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static const struct file_operations vendor_diag_fops = {
	.open		= simple_open,
	.read		= vendor_diag_read,
	.write		= vendor_diag_write,
	.llseek		= default_llseek,
};



static void hci_debugfs_create_basic(struct hci_dev *hdev)
{
	debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev,
			    &dut_mode_fops);

	if (hdev->set_diag)
		debugfs_create_file("vendor_diag", 0644, hdev->debugfs, hdev,
				    &vendor_diag_fops);
}

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static int hci_reset_req(struct hci_request *req, unsigned long opt)
{
	BT_DBG("%s %ld", req->hdev->name, opt);

	/* Reset device */
	set_bit(HCI_RESET, &req->hdev->flags);
	hci_req_add(req, HCI_OP_RESET, 0, NULL);
	return 0;
}

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Gustavo Fernando Padovan
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static void bredr_init(struct hci_request *req)
{
	req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED;

	/* Read Local Supported Features */
	hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);

	/* Read Local Version */
	hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL);

	/* Read BD Address */
	hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL);
}

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16.36%
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Maksim Krasnyanskiy
8
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Andrei Emeltchenko
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static void amp_init1(struct hci_request *req)
{
	req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED;

	/* Read Local Version */
	hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL);

	/* Read Local Supported Commands */
	hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);

	/* Read Local AMP Info */
	hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);

	/* Read Data Blk size */
	hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL);

	/* Read Flow Control Mode */
	hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL);

	/* Read Location Data */
	hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL);
}

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static int amp_init2(struct hci_request *req)
{
	/* Read Local Supported Features. Not all AMP controllers
         * support this so it's placed conditionally in the second
         * stage init.
         */
	if (req->hdev->commands[14] & 0x20)
		hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);

	return 0;
}

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static int hci_init1_req(struct hci_request *req, unsigned long opt)
{
	struct hci_dev *hdev = req->hdev;

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

	/* Reset */
	if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks))
		hci_reset_req(req, 0);

	switch (hdev->dev_type) {
	case HCI_PRIMARY:
		bredr_init(req);
		break;
	case HCI_AMP:
		amp_init1(req);
		break;
	default:
		BT_ERR("Unknown device type %d", hdev->dev_type);
		break;
	}

	return 0;
}

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static void bredr_setup(struct hci_request *req)
{
	__le16 param;
	__u8 flt_type;

	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
	hci_req_add(req, HCI_OP_READ_BUFFER_SIZE, 0, NULL);

	/* Read Class of Device */
	hci_req_add(req, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);

	/* Read Local Name */
	hci_req_add(req, HCI_OP_READ_LOCAL_NAME, 0, NULL);

	/* Read Voice Setting */
	hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL);

	/* Read Number of Supported IAC */
	hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL);

	/* Read Current IAC LAP */
	hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL);

	/* Clear Event Filters */
	flt_type = HCI_FLT_CLEAR_ALL;
	hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);

	/* Connection accept timeout ~20 secs */
	param = cpu_to_le16(0x7d00);
	hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
}

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static void le_setup(struct hci_request *req)
{
	struct hci_dev *hdev = req->hdev;

	/* Read LE Buffer Size */
	hci_req_add(req, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);

	/* Read LE Local Supported Features */
	hci_req_add(req, HCI_OP_LE_READ_LOCAL_FEATURES, 0, NULL);

	/* Read LE Supported States */
	hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL);

	/* LE-only controllers have LE implicitly enabled */
	if (!lmp_bredr_capable(hdev))
		hci_dev_set_flag(hdev, HCI_LE_ENABLED);
}

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static void hci_setup_event_mask(struct hci_request *req)
{
	struct hci_dev *hdev = req->hdev;

	/* The second byte is 0xff instead of 0x9f (two reserved bits
         * disabled) since a Broadcom 1.2 dongle doesn't respond to the
         * command otherwise.
         */
	u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };

	/* CSR 1.1 dongles does not accept any bitfield so don't try to set
         * any event mask for pre 1.2 devices.
         */
	if (hdev->hci_ver < BLUETOOTH_VER_1_2)
		return;

	if (lmp_bredr_capable(hdev)) {
		events[4] |= 0x01; /* Flow Specification Complete */
	} else {
		/* Use a different default for LE-only devices */
		memset(events, 0, sizeof(events));
		events[1] |= 0x20; /* Command Complete */
		events[1] |= 0x40; /* Command Status */
		events[1] |= 0x80; /* Hardware Error */

		/* If the controller supports the Disconnect command, enable
                 * the corresponding event. In addition enable packet flow
                 * control related events.
                 */
		if (hdev->commands[0] & 0x20) {
			events[0] |= 0x10; /* Disconnection Complete */
			events[2] |= 0x04; /* Number of Completed Packets */
			events[3] |= 0x02; /* Data Buffer Overflow */
		}

		/* If the controller supports the Read Remote Version
                 * Information command, enable the corresponding event.
                 */
		if (hdev->commands[2] & 0x80)
			events[1] |= 0x08; /* Read Remote Version Information
                                            * Complete
                                            */

		if (hdev->le_features[0] & HCI_LE_ENCRYPTION) {
			events[0] |= 0x80; /* Encryption Change */
			events[5] |= 0x80; /* Encryption Key Refresh Complete */
		}
	}

	if (lmp_inq_rssi_capable(hdev) ||
	    test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks))
		events[4] |= 0x02; /* Inquiry Result with RSSI */

	if (lmp_ext_feat_capable(hdev))
		events[4] |= 0x04; /* Read Remote Extended Features Complete */

	if (lmp_esco_capable(hdev)) {
		events[5] |= 0x08; /* Synchronous Connection Complete */
		events[5] |= 0x10; /* Synchronous Connection Changed */
	}

	if (lmp_sniffsubr_capable(hdev))
		events[5] |= 0x20; /* Sniff Subrating */

	if (lmp_pause_enc_capable(hdev))
		events[5] |= 0x80; /* Encryption Key Refresh Complete */

	if (lmp_ext_inq_capable(hdev))
		events[5] |= 0x40; /* Extended Inquiry Result */

	if (lmp_no_flush_capable(hdev))
		events[7] |= 0x01; /* Enhanced Flush Complete */

	if (lmp_lsto_capable(hdev))
		events[6] |= 0x80; /* Link Supervision Timeout Changed */

	if (lmp_ssp_capable(hdev)) {
		events[6] |= 0x01;	/* IO Capability Request */
		events[6] |= 0x02;	/* IO Capability Response */
		events[6] |= 0x04;	/* User Confirmation Request */
		events[6] |= 0x08;	/* User Passkey Request */
		events[6] |= 0x10;	/* Remote OOB Data Request */
		events[6] |= 0x20;	/* Simple Pairing Complete */
		events[7] |= 0x04;	/* User Passkey Notification */
		events[7] |= 0x08;	/* Keypress Notification */
		events[7] |= 0x10;	/* Remote Host Supported
                                         * Features Notification
                                         */
	}

	if (lmp_le_capable(hdev))
		events[7] |= 0x20;	/* LE Meta-Event */

	hci_req_add(req, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
}

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static int hci_init2_req(struct hci_request *req, unsigned long opt)
{
	struct hci_dev *hdev = req->hdev;

	if (hdev->dev_type == HCI_AMP)
		return amp_init2(req);

	if (lmp_bredr_capable(hdev))
		bredr_setup(req);
	else
		hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);

	if (lmp_le_capable(hdev))
		le_setup(req);

	/* All Bluetooth 1.2 and later controllers should support the
         * HCI command for reading the local supported commands.
         *
         * Unfortunately some controllers indicate Bluetooth 1.2 support,
         * but do not have support for this command. If that is the case,
         * the driver can quirk the behavior and skip reading the local
         * supported commands.
         */
	if (hdev->hci_ver > BLUETOOTH_VER_1_1 &&
	    !test_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks))
		hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);

	if (lmp_ssp_capable(hdev)) {
		/* When SSP is available, then the host features page
                 * should also be available as well. However some
                 * controllers list the max_page as 0 as long as SSP
                 * has not been enabled. To achieve proper debugging
                 * output, force the minimum max_page to 1 at least.
                 */
		hdev->max_page = 0x01;

		if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
			u8 mode = 0x01;

			hci_req_add(req, HCI_OP_WRITE_SSP_MODE,
				    sizeof(mode), &mode);
		} else {
			struct hci_cp_write_eir cp;

			memset(hdev->eir, 0, sizeof(hdev->eir));
			memset(&cp, 0, sizeof(cp));

			hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
		}
	}

	if (lmp_inq_rssi_capable(hdev) ||
	    test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks)) {
		u8 mode;

		/* If Extended Inquiry Result events are supported, then
                 * they are clearly preferred over Inquiry Result with RSSI
                 * events.
                 */
		mode = lmp_ext_inq_capable(hdev) ? 0x02 : 0x01;

		hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
	}

	if (lmp_inq_tx_pwr_capable(hdev))
		hci_req_add(req, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);

	if (lmp_ext_feat_capable(hdev)) {
		struct hci_cp_read_local_ext_features cp;

		cp.page = 0x01;
		hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES,
			    sizeof(cp), &cp);
	}

	if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) {
		u8 enable = 1;
		hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable),
			    &enable);
	}

	return 0;
}

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static void hci_setup_link_policy(struct hci_request *req)
{
	struct hci_dev *hdev = req->hdev;
	struct hci_cp_write_def_link_policy cp;
	u16 link_policy = 0;

	if (lmp_rswitch_capable(hdev))
		link_policy |= HCI_LP_RSWITCH;
	if (lmp_hold_capable(hdev))
		link_policy |= HCI_LP_HOLD;
	if (lmp_sniff_capable(hdev))
		link_policy |= HCI_LP_SNIFF;
	if (lmp_park_capable(hdev))
		link_policy |= HCI_LP_PARK;

	cp.policy = cpu_to_le16(link_policy);
	hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp);
}

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static void hci_set_le_support(struct hci_request *req)
{
	struct hci_dev *hdev = req->hdev;
	struct hci_cp_write_le_host_supported cp;

	/* LE-only devices do not support explicit enablement */
	if (!lmp_bredr_capable(hdev))
		return;

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

	if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
		cp.le = 0x01;
		cp.simul = 0x00;
	}

	if (cp.le != lmp_host_le_capable(hdev))
		hci_req_add(req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp),
			    &cp);
}

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static void hci_set_event_mask_page_2(struct hci_request *req)
{
	struct hci_dev *hdev = req->hdev;
	u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

	/* If Connectionless Slave Broadcast master role is supported
         * enable all necessary events for it.
         */
	if (lmp_csb_master_capable(hdev)) {
		events[1] |= 0x40;	/* Triggered Clock Capture */
		events[1] |= 0x80;	/* Synchronization Train Complete */
		events[2] |= 0x10;	/* Slave Page Response Timeout */
		events[2] |= 0x20;	/* CSB Channel Map Change */
	}

	/* If Connectionless Slave Broadcast slave role is supported
         * enable all necessary events for it.
         */
	if (lmp_csb_slave_capable(hdev)) {
		events[2] |= 0x01;	/* Synchronization Train Received */
		events[2] |= 0x02;	/* CSB Receive */
		events[2] |= 0x04;	/* CSB Timeout */
		events[2] |= 0x08;	/* Truncated Page Complete */
	}

	/* Enable Authenticated Payload Timeout Expired event if supported */
	if (lmp_ping_capable(hdev) || hdev->le_features[0] & HCI_LE_PING)
		events[2] |= 0x80;

	hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
136
81.93%
1
25.00%
Marcel Holtmann
30
18.07%
3
75.00%
Total
166
100.00%
4
100.00%



static int hci_init3_req(struct hci_request *req, unsigned long opt)
{
	struct hci_dev *hdev = req->hdev;
	u8 p;

	hci_setup_event_mask(req);

	if (hdev->commands[6] & 0x20 &&
	    !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) {
		struct hci_cp_read_stored_link_key cp;

		bacpy(&cp.bdaddr, BDADDR_ANY);
		cp.read_all = 0x01;
		hci_req_add(req, HCI_OP_READ_STORED_LINK_KEY, sizeof(cp), &cp);
	}

	if (hdev->commands[5] & 0x10)
		hci_setup_link_policy(req);

	if (hdev->commands[8] & 0x01)
		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL);

	/* Some older Broadcom based Bluetooth 1.2 controllers do not
         * support the Read Page Scan Type command. Check support for
         * this command in the bit mask of supported commands.
         */
	if (hdev->commands[13] & 0x01)
		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL);

	if (lmp_le_capable(hdev)) {
		u8 events[8];

		memset(events, 0, sizeof(events));

		if (hdev->le_features[0] & HCI_LE_ENCRYPTION)
			events[0] |= 0x10;	/* LE Long Term Key Request */

		/* If controller supports the Connection Parameters Request
                 * Link Layer Procedure, enable the corresponding event.
                 */
		if (hdev->le_features[0] & HCI_LE_CONN_PARAM_REQ_PROC)
			events[0] |= 0x20;	/* LE Remote Connection
                                                 * Parameter Request
                                                 */

		/* If the controller supports the Data Length Extension
                 * feature, enable the corresponding event.
                 */
		if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT)
			events[0] |= 0x40;	/* LE Data Length Change */

		/* If the controller supports Extended Scanner Filter
                 * Policies, enable the correspondig event.
                 */
		if (hdev->le_features[0] & HCI_LE_EXT_SCAN_POLICY)
			events[1] |= 0x04;	/* LE Direct Advertising
                                                 * Report
                                                 */

		/* If the controller supports the LE Set Scan Enable command,
                 * enable the corresponding advertising report event.
                 */
		if (hdev->commands[26] & 0x08)
			events[0] |= 0x02;	/* LE Advertising Report */

		/* If the controller supports the LE Create Connection
                 * command, enable the corresponding event.
                 */
		if (hdev->commands[26] & 0x10)
			events[0] |= 0x01;	/* LE Connection Complete */

		/* If the controller supports the LE Connection Update
                 * command, enable the corresponding event.
                 */
		if (hdev->commands[27] & 0x04)
			events[0] |= 0x04;	/* LE Connection Update
                                                 * Complete
                                                 */

		/* If the controller supports the LE Read Remote Used Features
                 * command, enable the corresponding event.
                 */
		if (hdev->commands[27] & 0x20)
			events[0] |= 0x08;	/* LE Read Remote Used
                                                 * Features Complete
                                                 */

		/* If the controller supports the LE Read Local P-256
                 * Public Key command, enable the corresponding event.
                 */
		if (hdev->commands[34] & 0x02)
			events[0] |= 0x80;	/* LE Read Local P-256
                                                 * Public Key Complete
                                                 */

		/* If the controller supports the LE Generate DHKey
                 * command, enable the corresponding event.
                 */
		if (hdev->commands[34] & 0x04)
			events[1] |= 0x01;	/* LE Generate DHKey Complete */

		hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events),
			    events);

		if (hdev->commands[25] & 0x40) {
			/* Read LE Advertising Channel TX Power */
			hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
		}

		if (hdev->commands[26] & 0x40) {
			/* Read LE White List Size */
			hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE,
				    0, NULL);
		}

		if (hdev->commands[26] & 0x80) {
			/* Clear LE White List */
			hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL);
		}

		if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) {
			/* Read LE Maximum Data Length */
			hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL);

			/* Read LE Suggested Default Data Length */
			hci_req_add(req, HCI_OP_LE_READ_DEF_DATA_LEN, 0, NULL);
		}

		hci_set_le_support(req);
	}

	/* Read features beyond page 1 if available */
	for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
		struct hci_cp_read_local_ext_features cp;

		cp.page = p;
		hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES,
			    sizeof(cp), &cp);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
389
69.59%
10
52.63%
Johan Hedberg
106
18.96%
5
26.32%
Andre Guedes
54
9.66%
2
10.53%
Andrei Emeltchenko
10
1.79%
2
10.53%
Total
559
100.00%
19
100.00%



static int hci_init4_req(struct hci_request *req, unsigned long opt)
{
	struct hci_dev *hdev = req->hdev;

	/* Some Broadcom based Bluetooth controllers do not support the
         * Delete Stored Link Key command. They are clearly indicating its
         * absence in the bit mask of supported commands.
         *
         * Check the supported commands and only if the the command is marked
         * as supported send it. If not supported assume that the controller
         * does not have actual support for stored link keys which makes this
         * command redundant anyway.
         *
         * Some controllers indicate that they support handling deleting
         * stored link keys, but they don't. The quirk lets a driver
         * just disable this command.
         */
	if (hdev->commands[6] & 0x80 &&
	    !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) {
		struct hci_cp_delete_stored_link_key cp;

		bacpy(&cp.bdaddr, BDADDR_ANY);
		cp.delete_all = 0x01;
		hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY,
			    sizeof(cp), &cp);
	}

	/* Set event mask page 2 if the HCI command for it is supported */
	if (hdev->commands[22] & 0x04)
		hci_set_event_mask_page_2(req);

	/* Read local codec list if the HCI command is supported */
	if (hdev->commands[29] & 0x20)
		hci_req_add(req, HCI_OP_READ_LOCAL_CODECS, 0, NULL);

	/* Get MWS transport configuration if the HCI command is supported */
	if (hdev->commands[30] & 0x08)
		hci_req_add(req, HCI_OP_GET_MWS_TRANSPORT_CONFIG, 0, NULL);

	/* Check for Synchronization Train support */
	if (lmp_sync_train_capable(hdev))
		hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL);

	/* Enable Secure Connections if supported and configured */
	if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
	    bredr_sc_enabled(hdev)) {
		u8 support = 0x01;

		hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT,
			    sizeof(support), &support);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
145
70.39%
7
63.64%
Johan Hedberg
61
29.61%
4
36.36%
Total
206
100.00%
11
100.00%



static int __hci_init(struct hci_dev *hdev)
{
	int err;

	err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT, NULL);
	if (err < 0)
		return err;

	if (hci_dev_test_flag(hdev, HCI_SETUP))
		hci_debugfs_create_basic(hdev);

	err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT, NULL);
	if (err < 0)
		return err;

	/* HCI_PRIMARY covers both single-mode LE, BR/EDR and dual-mode
         * BR/EDR/LE type controllers. AMP controllers only need the
         * first two stages of init.
         */
	if (hdev->dev_type != HCI_PRIMARY)
		return 0;

	err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT, NULL);
	if (err < 0)
		return err;

	err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT, NULL);
	if (err < 0)
		return err;

	/* This function is only called when the controller is actually in
         * configured state. When the controller is marked as unconfigured,
         * this initialization procedure is not run.
         *
         * It means that it is possible that a controller runs through its
         * setup phase and then discovers missing settings. If that is the
         * case, then this function will not be called. It then will only
         * be called during the config phase.
         *
         * So only when in setup phase or config phase, create the debugfs
         * entries and register the SMP channels.
         */
	if (!hci_dev_test_flag(hdev, HCI_SETUP) &&
	    !hci_dev_test_flag(hdev, HCI_CONFIG))
		return 0;

	hci_debugfs_create_common(hdev);

	if (lmp_bredr_capable(hdev))
		hci_debugfs_create_bredr(hdev);

	if (lmp_le_capable(hdev))
		hci_debugfs_create_le(hdev);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
94
49.47%
4
26.67%
Marcel Holtmann
81
42.63%
9
60.00%
Andrei Emeltchenko
15
7.89%
2
13.33%
Total
190
100.00%
15
100.00%



static int hci_init0_req(struct hci_request *req, unsigned long opt)
{
	struct hci_dev *hdev = req->hdev;

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

	/* Reset */
	if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks))
		hci_reset_req(req, 0);

	/* Read Local Version */
	hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL);

	/* Read BD Address */
	if (hdev->set_bdaddr)
		hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
75
84.27%
1
25.00%
Andre Guedes
5
5.62%
1
25.00%
Lukasz Rymanowski
5
5.62%
1
25.00%
Johan Hedberg
4
4.49%
1
25.00%
Total
89
100.00%
4
100.00%



static int __hci_unconf_init(struct hci_dev *hdev)
{
	int err;

	if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
		return 0;

	err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT, NULL);
	if (err < 0)
		return err;

	if (hci_dev_test_flag(hdev, HCI_SETUP))
		hci_debugfs_create_basic(hdev);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
60
85.71%
4
50.00%
Lukasz Rymanowski
6
8.57%
1
12.50%
Johan Hedberg
3
4.29%
2
25.00%
Andrei Emeltchenko
1
1.43%
1
12.50%
Total
70
100.00%
8
100.00%



static int hci_scan_req(struct hci_request *req, unsigned long opt)
{
	__u8 scan = opt;

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

	/* Inquiry and Page scans */
	hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
21
42.86%
1
20.00%
Linus Torvalds
17
34.69%
1
20.00%
Johan Hedberg
10
20.41%
2
40.00%
Marcel Holtmann
1
2.04%
1
20.00%
Total
49
100.00%
5
100.00%



static int hci_auth_req(struct hci_request *req, unsigned long opt)
{
	__u8 auth = opt;

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

	/* Authentication */
	hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
30
61.22%
1
16.67%
Johan Hedberg
10
20.41%
2
33.33%
Linus Torvalds
8
16.33%
2
33.33%
Marcel Holtmann
1
2.04%
1
16.67%
Total
49
100.00%
6
100.00%



static int hci_encrypt_req(struct hci_request *req, unsigned long opt)
{
	__u8 encrypt = opt;

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

	/* Encryption */
	hci_req_add(req, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
29
59.18%
1
16.67%
Johan Hedberg
10
20.41%
2
33.33%
Linus Torvalds
8
16.33%
1
16.67%
Marcel Holtmann
2
4.08%
2
33.33%
Total
49
100.00%
6
100.00%



static int hci_linkpol_req(struct hci_request *req, unsigned long opt)
{
	__le16 policy = cpu_to_le16(opt);

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

	/* Default link policy */
	hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
42
80.77%
2
50.00%
Johan Hedberg
10
19.23%
2
50.00%
Total
52
100.00%
4
100.00%

/* Get HCI device by index.
 * Device is held on return. */


struct hci_dev *hci_dev_get(int index)
{
	struct hci_dev *hdev = NULL, *d;

	BT_DBG("%d", index);

	if (index < 0)
		return NULL;

	read_lock(&hci_dev_list_lock);
	list_for_each_entry(d, &hci_dev_list, list) {
		if (d->id == index) {
			hdev = hci_dev_hold(d);
			break;
		}
	}
	read_unlock(&hci_dev_list_lock);
	return hdev;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
45
56.96%
3
42.86%
Linus Torvalds
26
32.91%
2
28.57%
Luiz Augusto von Dentz
6
7.59%
1
14.29%
Maxim Krasnyansky
2
2.53%
1
14.29%
Total
79
100.00%
7
100.00%

/* ---- Inquiry support ---- */



bool hci_discovery_active(struct hci_dev *hdev)
{
	struct discovery_state *discov = &hdev->discovery;

	switch (discov->state) {
	case DISCOVERY_FINDING:
	case DISCOVERY_RESOLVING:
		return true;

	default:
		return false;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
31
75.61%
1
33.33%
Andre Guedes
10
24.39%
2
66.67%
Total
41
100.00%
3
100.00%



void hci_discovery_set_state(struct hci_dev *hdev, int state)
{
	int old_state = hdev->discovery.state;

	BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state);

	if (old_state == state)
		return;

	hdev->discovery.state = state;

	switch (state) {
	case DISCOVERY_STOPPED:
		hci_update_background_scan(hdev);

		if (old_state != DISCOVERY_STARTING)
			mgmt_discovering(hdev, 0);
		break;
	case DISCOVERY_STARTING:
		break;
	case DISCOVERY_FINDING:
		mgmt_discovering(hdev, 1);
		break;
	case DISCOVERY_RESOLVING:
		break;
	case DISCOVERY_STOPPING:
		break;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
93
88.57%
3
42.86%
Andre Guedes
12
11.43%
4
57.14%
Total
105
100.00%
7
100.00%



void hci_inquiry_cache_flush(struct hci_dev *hdev)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *p, *n;

	list_for_each_entry_safe(p, n, &cache->all, all) {
		list_del(&p->all);
		kfree(p);
	}

	INIT_LIST_HEAD(&cache->unknown);
	INIT_LIST_HEAD(&cache->resolve);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
42
60.87%
3
42.86%
Maksim Krasnyanskiy
17
24.64%
1
14.29%
Linus Torvalds
9
13.04%
2
28.57%
Andre Guedes
1
1.45%
1
14.29%
Total
69
100.00%
7
100.00%



struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
					       bdaddr_t *bdaddr)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *e;

	BT_DBG("cache %p, %pMR", cache, bdaddr);

	list_for_each_entry(e, &cache->all, all) {
		if (!bacmp(&e->data.bdaddr, bdaddr))
			return e;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
34
47.89%
3
42.86%
Linus Torvalds
30
42.25%
1
14.29%
Maksim Krasnyanskiy
5
7.04%
1
14.29%
Marcel Holtmann
1
1.41%
1
14.29%
Andrei Emeltchenko
1
1.41%
1
14.29%
Total
71
100.00%
7
100.00%



struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
						       bdaddr_t *bdaddr)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *e;

	BT_DBG("cache %p, %pMR", cache, bdaddr);

	list_for_each_entry(e, &cache->unknown, list) {
		if (!bacmp(&e->data.bdaddr, bdaddr))
			return e;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
51
71.83%
3
42.86%
Maksim Krasnyanskiy
11
15.49%
1
14.29%
Linus Torvalds
7
9.86%
1
14.29%
Marcel Holtmann
1
1.41%
1
14.29%
Andrei Emeltchenko
1
1.41%
1
14.29%
Total
71
100.00%
7
100.00%



struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
						       bdaddr_t *bdaddr,
						       int state)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *e;

	BT_DBG("cache %p bdaddr %pMR state %d", cache, bdaddr, state);

	list_for_each_entry(e, &cache->resolve, list) {
		if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state)
			return e;
		if (!bacmp(&e->data.bdaddr, bdaddr))
			return e;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
94
98.95%
1
50.00%
Andrei Emeltchenko
1
1.05%
1
50.00%
Total
95
100.00%
2
100.00%



void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
				      struct inquiry_entry *ie)
{
	struct discovery_state *cache = &hdev->discovery;
	struct list_head *pos = &cache->resolve;
	struct inquiry_entry *p;

	list_del(&ie->list);

	list_for_each_entry(p, &cache->resolve, list) {
		if (p->name_state != NAME_PENDING &&
		    abs(p->data.rssi) >= abs(ie->data.rssi))
			break;
		pos = &p->list;
	}

	list_add(&ie->list, pos);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
102
100.00%
1
100.00%
Total
102
100.00%
1
100.00%



u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
			     bool name_known)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_entry *ie;
	u32 flags = 0;

	BT_DBG("cache %p, %pMR", cache, &data->bdaddr);

	hci_remove_remote_oob_data(hdev, &data->bdaddr, BDADDR_BREDR);

	if (!data->ssp_mode)
		flags |= MGMT_DEV_FOUND_LEGACY_PAIRING;

	ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr);
	if (ie) {
		if (!ie->data.ssp_mode)
			flags |= MGMT_DEV_FOUND_LEGACY_PAIRING;

		if (ie->name_state == NAME_NEEDED &&
		    data->rssi != ie->data.rssi) {
			ie->data.rssi = data->rssi;
			hci_inquiry_cache_update_resolve(hdev, ie);
		}

		goto update;
	}

	/* Entry not in the cache. Add new one. */
	ie = kzalloc(sizeof(*ie), GFP_KERNEL);
	if (!ie) {
		flags |= MGMT_DEV_FOUND_CONFIRM_NAME;
		goto done;
	}

	list_add(&ie->all, &cache->all);

	if (name_known) {
		ie->name_state = NAME_KNOWN;
	} else {
		ie->name_state = NAME_NOT_KNOWN;
		list_add(&ie->list, &cache->unknown);
	}

update:
	if (name_known && ie->name_state != NAME_KNOWN &&
	    ie->name_state != NAME_PENDING) {
		ie->name_state = NAME_KNOWN;
		list_del(&ie->list);
	}

	memcpy(&ie->data, data, sizeof(*data));
	ie->timestamp = jiffies;
	cache->timestamp = jiffies;

	if (ie->name_state == NAME_NOT_KNOWN)
		flags |= MGMT_DEV_FOUND_CONFIRM_NAME;

done:
	return flags;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
147
49.33%
8
40.00%
Maksim Krasnyanskiy
57
19.13%
2
10.00%
Marcel Holtmann
44
14.77%
5
25.00%
Linus Torvalds
24
8.05%
2
10.00%
Andrei Emeltchenko
16
5.37%
2
10.00%
Szymon Janc
10
3.36%
1
5.00%
Total
298
100.00%
20
100.00%



static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf)
{
	struct discovery_state *cache = &hdev->discovery;
	struct inquiry_info *info = (struct inquiry_info *) buf;
	struct inquiry_entry *e;
	int copied = 0;

	list_for_each_entry(e, &cache->all, all) {
		struct inquiry_data *data = &e->data;

		if (copied >= num)
			break;

		bacpy(&info->bdaddr, &data->bdaddr);
		info->pscan_rep_mode	= data->pscan_rep_mode;
		info->pscan_period_mode	= data->pscan_period_mode;
		info->pscan_mode	= data->pscan_mode;
		memcpy(info->dev_class, data->dev_class, 3);
		info->clock_offset	= data->clock_offset;

		info++;
		copied++;
	}

	BT_DBG("cache %p, copied %d", cache, copied);
	return copied;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
64
41.83%
2
25.00%
Maksim Krasnyanskiy
49
32.03%
2
25.00%
Johan Hedberg
20
13.07%
3
37.50%
Linus Torvalds
20
13.07%
1
12.50%
Total
153
100.00%
8
100.00%



static int hci_inq_req(struct hci_request *req, unsigned long opt)
{
	struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt;
	struct hci_dev *hdev = req->hdev;
	struct hci_cp_inquiry cp;

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

	if (test_bit(HCI_INQUIRY, &hdev->flags))
		return 0;

	/* Start Inquiry */
	memcpy(&cp.lap, &ir->lap, 3);
	cp.length  = ir->length;
	cp.num_rsp = ir->num_rsp;
	hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
63
55.26%
3
42.86%
Linus Torvalds
30
26.32%
1
14.29%
Johan Hedberg
20
17.54%
2
28.57%
Marcel Holtmann
1
0.88%
1
14.29%
Total
114
100.00%
7
100.00%



int hci_inquiry(void __user *arg)
{
	__u8 __user *ptr = arg;
	struct hci_inquiry_req ir;
	struct hci_dev *hdev;
	int err = 0, do_inquiry = 0, max_rsp;
	long timeo;
	__u8 *buf;

	if (copy_from_user(&ir, ptr, sizeof(ir)))
		return -EFAULT;

	hdev = hci_dev_get(ir.dev_id);
	if (!hdev)
		return -ENODEV;

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		err = -EBUSY;
		goto done;
	}

	if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	if (hdev->dev_type != HCI_PRIMARY) {
		err = -EOPNOTSUPP;
		goto done;
	}

	if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	hci_dev_lock(hdev);
	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
	    inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
		hci_inquiry_cache_flush(hdev);
		do_inquiry = 1;
	}
	hci_dev_unlock(hdev);

	timeo = ir.length * msecs_to_jiffies(2000);

	if (do_inquiry) {
		err = hci_req_sync(hdev, hci_inq_req, (unsigned long) &ir,
				   timeo, NULL);
		if (err < 0)
			goto done;

		/* Wait until Inquiry procedure finishes (HCI_INQUIRY flag is
                 * cleared). If it is interrupted by a signal, return -EINTR.
                 */
		if (wait_on_bit(&hdev->flags, HCI_INQUIRY,
				TASK_INTERRUPTIBLE))
			return -EINTR;
	}

	/* for unlimited number of responses we will use buffer with
         * 255 entries
         */
	max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;

	/* cache_dump can't sleep. Therefore we allocate temp buffer and then
         * copy it to the user space.
         */
	buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL);
	if (!buf) {
		err = -ENOMEM;
		goto done;
	}

	hci_dev_lock(hdev);
	ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf);
	hci_dev_unlock(hdev);

	BT_DBG("num_rsp %d", ir.num_rsp);

	if (!copy_to_user(ptr, &ir, sizeof(ir))) {
		ptr += sizeof(ir);
		if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
				 ir.num_rsp))
			err = -EFAULT;
	} else
		err = -EFAULT;

	kfree(buf);

done:
	hci_dev_put(hdev);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
173
41.89%
2
9.09%
Marcel Holtmann
88
21.31%
8
36.36%
Linus Torvalds
71
17.19%
1
4.55%
Andre Guedes
20
4.84%
2
9.09%
Johan Hedberg
20
4.84%
3
13.64%
Andrei Emeltchenko
17
4.12%
2
9.09%
Al Viro
10
2.42%
1
4.55%
Randy Dunlap
9
2.18%
1
4.55%
Gustavo Fernando Padovan
5
1.21%
2
9.09%
Total
413
100.00%
22
100.00%



static int hci_dev_do_open(struct hci_dev *hdev)
{
	int ret = 0;

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

	hci_req_sync_lock(hdev);

	if (hci_dev_test_flag(hdev, HCI_UNREGISTER)) {
		ret = -ENODEV;
		goto done;
	}

	if (!hci_dev_test_flag(hdev, HCI_SETUP) &&
	    !hci_dev_test_flag(hdev, HCI_CONFIG)) {
		/* Check for rfkill but allow the HCI setup stage to
                 * proceed (which in itself doesn't cause any RF activity).
                 */
		if (hci_dev_test_flag(hdev, HCI_RFKILLED)) {
			ret = -ERFKILL;
			goto done;
		}

		/* Check for valid public address or a configured static
                 * random adddress, but let the HCI setup proceed to
                 * be able to determine if there is a public address
                 * or not.
                 *
                 * In case of user channel usage, it is not important
                 * if a public address or static random address is
                 * available.
                 *
                 * This check is only valid for BR/EDR controllers
                 * since AMP controllers do not have an address.
                 */
		if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
		    hdev->dev_type == HCI_PRIMARY &&
		    !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
		    !bacmp(&hdev->static_addr, BDADDR_ANY)) {
			ret = -EADDRNOTAVAIL;
			goto done;
		}
	}

	if (test_bit(HCI_UP, &hdev->flags)) {
		ret = -EALREADY;
		goto done;
	}

	if (hdev->open(hdev)) {
		ret = -EIO;
		goto done;
	}

	set_bit(HCI_RUNNING, &hdev->flags);
	hci_sock_dev_event(hdev, HCI_DEV_OPEN);

	atomic_set(&hdev->cmd_cnt, 1);
	set_bit(HCI_INIT, &hdev->flags);

	if (hci_dev_test_flag(hdev, HCI_SETUP)) {
		hci_sock_dev_event(hdev, HCI_DEV_SETUP);

		if (hdev->setup)
			ret = hdev->setup(hdev);

		/* The transport driver can set these quirks before
                 * creating the HCI device or in its setup callback.
                 *
                 * In case any of them is set, the controller has to
                 * start up as unconfigured.
                 */
		if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
		    test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks))
			hci_dev_set_flag(hdev, HCI_UNCONFIGURED);

		/* For an unconfigured controller it is required to
                 * read at least the version information provided by
                 * the Read Local Version Information command.
                 *
                 * If the set_bdaddr driver callback is provided, then
                 * also the original Bluetooth public device address
                 * will be read using the Read BD Address command.
                 */
		if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
			ret = __hci_unconf_init(hdev);
	}

	if (hci_dev_test_flag(hdev, HCI_CONFIG)) {
		/* If public address change is configured, ensure that
                 * the address gets programmed. If the driver does not
                 * support changing the public address, fail the power
                 * on procedure.
                 */
		if (bacmp(&hdev->public_addr, BDADDR_ANY) &&
		    hdev->set_bdaddr)
			ret = hdev->set_bdaddr(hdev, &hdev->public_addr);
		else
			ret = -EADDRNOTAVAIL;
	}

	if (!ret) {
		if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED) &&
		    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
			ret = __hci_init(hdev);
			if (!ret && hdev->post_init)
				ret = hdev->post_init(hdev);
		}
	}

	/* If the HCI Reset command is clearing all diagnostic settings,
         * then they need to be reprogrammed after the init procedure
         * completed.
         */
	if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) &&
	    hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) && hdev->set_diag)
		ret = hdev->set_diag(hdev, true);

	clear_bit(HCI_INIT, &hdev->flags);

	if (!ret) {
		hci_dev_hold(hdev);
		hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
		set_bit(HCI_UP, &hdev->flags);
		hci_sock_dev_event(hdev, HCI_DEV_UP);
		hci_leds_update_powered(hdev, true);
		if (!hci_dev_test_flag(hdev, HCI_SETUP) &&
		    !hci_dev_test_flag(hdev, HCI_CONFIG) &&
		    !hci_dev_test_flag(hdev, HCI_UNCONFIGURED) &&
		    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
		    hci_dev_test_flag(hdev, HCI_MGMT) &&
		    hdev->dev_type == HCI_PRIMARY) {
			ret = __hci_req_hci_power_on(hdev);
			mgmt_power_on(hdev, ret);
		}
	} else {
		/* Init failed, cleanup */
		flush_work(&hdev->tx_work);
		flush_work(&hdev->cmd_work);
		flush_work(&hdev->rx_work);

		skb_queue_purge(&hdev->cmd_q);
		skb_queue_purge(&hdev->rx_q);

		if (hdev->flush)
			hdev->flush(hdev);

		if (hdev->sent_cmd) {
			kfree_skb(hdev->sent_cmd);
			hdev->sent_cmd = NULL;
		}

		clear_bit(HCI_RUNNING, &hdev->flags);
		hci_sock_dev_event(hdev, HCI_DEV_CLOSE);

		hdev->close(hdev);
		hdev->flags &= BIT(HCI_RAW);
	}

done:
	hci_req_sync_unlock(hdev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
402
60.00%
26
61.90%
Maksim Krasnyanskiy
109
16.27%
2
4.76%
Linus Torvalds
84
12.54%
2
4.76%
Johan Hedberg
46
6.87%
7
16.67%
Johan Hovold
16
2.39%
1
2.38%
Heiner Kallweit
7
1.04%
1
2.38%
Gustavo Fernando Padovan
4
0.60%
2
4.76%
Andrei Emeltchenko
2
0.30%
1
2.38%
Total
670
100.00%
42
100.00%

/* ---- HCI ioctl helpers ---- */



int hci_dev_open(__u16 dev)
{
	struct hci_dev *hdev;
	int err;

	hdev = hci_dev_get(dev);
	if (!hdev)
		return -ENODEV;

	/* Devices that are marked as unconfigured can only be powered
         * up as user channel. Trying to bring them up as normal devices
         * will result into a failure. Only user channel operation is
         * possible.
         *
         * When this function is called for a user channel, the flag
         * HCI_USER_CHANNEL will be set first before attempting to
         * open the device.
         */
	if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) &&
	    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	/* We need to ensure that no other power on/off work is pending
         * before proceeding to call hci_dev_do_open. This is
         * particularly important if the setup procedure has not yet
         * completed.
         */
	if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF))
		cancel_delayed_work(&hdev->power_off);

	/* After this call it is guaranteed that the setup procedure
         * has finished. This means that error conditions like RFKILL
         * or no valid public or static random address apply.
         */
	flush_workqueue(hdev->req_workqueue);

	/* For controllers not using the management interface and that
         * are brought up using legacy ioctl, set the HCI_BONDABLE bit
         * so that pairing works for them. Once the management interface
         * is in use this bit will be cleared again and userspace has
         * to explicitly enable it.
         */
	if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
	    !hci_dev_test_flag(hdev, HCI_MGMT))
		hci_dev_set_flag(hdev, HCI_BONDABLE);

	err = hci_dev_do_open(hdev);

done:
	hci_dev_put(hdev);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
62
48.06%
3
25.00%
Marcel Holtmann
59
45.74%
7
58.33%
Linus Torvalds
5
3.88%
1
8.33%
Maksim Krasnyanskiy
3
2.33%
1
8.33%
Total
129
100.00%
12
100.00%

/* This function requires the caller holds hdev->lock */


static void hci_pend_le_actions_clear(struct hci_dev *hdev)
{
	struct hci_conn_params *p;

	list_for_each_entry(p, &hdev->le_conn_params, list) {
		if (p->conn) {
			hci_conn_drop(p->conn);
			hci_conn_put(p->conn);
			p->conn = NULL;
		}
		list_del_init(&p->action);
	}

	BT_DBG("All LE pending actions cleared");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
63
94.03%
5
83.33%
Linus Torvalds
4
5.97%
1
16.67%
Total
67
100.00%
6
100.00%



int hci_dev_do_close(struct hci_dev *hdev)
{
	bool auto_off;

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

	if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
	    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
	    test_bit(HCI_UP, &hdev->flags)) {
		/* Execute vendor specific shutdown routine */
		if (hdev->shutdown)
			hdev->shutdown(hdev);
	}

	cancel_delayed_work(&hdev->power_off);

	hci_request_cancel_all(hdev);
	hci_req_sync_lock(hdev);

	if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
		cancel_delayed_work_sync(&hdev->cmd_timer);
		hci_req_sync_unlock(hdev);
		return 0;
	}

	hci_leds_update_powered(hdev, false);

	/* Flush RX and TX works */
	flush_work(&hdev->tx_work);
	flush_work(&hdev->rx_work);

	if (hdev->discov_timeout > 0) {
		hdev->discov_timeout = 0;
		hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
		hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
	}

	if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
		cancel_delayed_work(&hdev->service_cache);

	if (hci_dev_test_flag(hdev, HCI_MGMT))
		cancel_delayed_work_sync(&hdev->rpa_expired);

	/* Avoid potential lockdep warnings from the *_flush() calls by
         * ensuring the workqueue is empty up front.
         */
	drain_workqueue(hdev->workqueue);

	hci_dev_lock(hdev);

	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);

	auto_off = hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF);

	if (!auto_off && hdev->dev_type == HCI_PRIMARY &&
	    !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
	    hci_dev_test_flag(hdev, HCI_MGMT))
		__mgmt_power_off(hdev);

	hci_inquiry_cache_flush(hdev);
	hci_pend_le_actions_clear(hdev);
	hci_conn_hash_flush(hdev);
	hci_dev_unlock(hdev);

	smp_unregister(hdev);

	hci_sock_dev_event(hdev, HCI_DEV_DOWN);

	if (hdev->flush)
		hdev->flush(hdev);

	/* Reset device */
	skb_queue_purge(&hdev->cmd_q);
	atomic_set(&hdev->cmd_cnt, 1);
	if (test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks) &&
	    !auto_off && !hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		set_bit(HCI_INIT, &hdev->flags);
		__hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT, NULL);
		clear_bit(HCI_INIT, &hdev->flags);
	}

	/* flush cmd  work */
	flush_work(&hdev->cmd_work);

	/* Drop queues */
	skb_queue_purge(&hdev->rx_q);
	skb_queue_purge(&hdev->cmd_q);
	skb_queue_purge(&hdev->raw_q);

	/* Drop last sent command */
	if (hdev->sent_cmd) {
		cancel_delayed_work_sync(&hdev->cmd_timer);
		kfree_skb(hdev->sent_cmd);
		hdev->sent_cmd = NULL;
	}

	clear_bit(HCI_RUNNING, &hdev->flags);
	hci_sock_dev_event(hdev, HCI_DEV_CLOSE);

	/* After this point our queues are empty
         * and no tasks are scheduled. */
	hdev->close(hdev);

	/* Clear flags */
	hdev->flags &= BIT(HCI_RAW);
	hci_dev_clear_volatile_flags(hdev);

	/* Controller radio is available but is currently powered down */
	hdev->amp_status = AMP_STATUS_POWERED_DOWN;

	memset(hdev->eir, 0, sizeof(hdev->eir));
	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
	bacpy(&hdev->random_addr, BDADDR_ANY);

	hci_req_sync_unlock(hdev);

	hci_dev_put(hdev);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
134
24.23%
19
33.93%
Linus Torvalds
130
23.51%
2
3.57%
Marcel Holtmann
111
20.07%
20
35.71%
Maksim Krasnyanskiy
88
15.91%
2
3.57%
Tedd Ho-Jeong An
23
4.16%
1
1.79%
Vinicius Costa Gomes
22
3.98%
2
3.57%
Gabriele Mazzotta
10
1.81%
1
1.79%
Loic Poulain
8
1.45%
1
1.79%
Gustavo Fernando Padovan
8
1.45%
3
5.36%
Heiner Kallweit
7
1.27%
1
1.79%
Andrei Emeltchenko
7
1.27%
2
3.57%
Andre Guedes
5
0.90%
2
3.57%
Total
553
100.00%
56
100.00%



int hci_dev_close(__u16 dev)
{
	struct hci_dev *hdev;
	int err;

	hdev = hci_dev_get(dev);
	if (!hdev)
		return -ENODEV;

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		err = -EBUSY;
		goto done;
	}

	if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF))
		cancel_delayed_work(&hdev->power_off);

	err = hci_dev_do_close(hdev);

done:
	hci_dev_put(hdev);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
38
44.71%
4
57.14%
Linus Torvalds
31
36.47%
1
14.29%
Maksim Krasnyanskiy
11
12.94%
1
14.29%
Andrei Emeltchenko
5
5.88%
1
14.29%
Total
85
100.00%
7
100.00%



static int hci_dev_do_reset(struct hci_dev *hdev)
{
	int ret;

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

	hci_req_sync_lock(hdev);

	/* Drop queues */
	skb_queue_purge(&hdev->rx_q);
	skb_queue_purge(&hdev->cmd_q);

	/* Avoid potential lockdep warnings from the *_flush() calls by
         * ensuring the workqueue is empty up front.
         */
	drain_workqueue(hdev->workqueue);

	hci_dev_lock(hdev);
	hci_inquiry_cache_flush(hdev);
	hci_conn_hash_flush(hdev);
	hci_dev_unlock(hdev);

	if (hdev->flush)
		hdev->flush(hdev);

	atomic_set(&hdev->cmd_cnt, 1);
	hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0;

	ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT, NULL);

	hci_req_sync_unlock(hdev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
77
55.40%
2
15.38%
Maksim Krasnyanskiy
21
15.11%
1
7.69%
Marcel Holtmann
19
13.67%
3
23.08%
Johan Hedberg
13
9.35%
4
30.77%
Ville Tervo
6
4.32%
1
7.69%
Gustavo Fernando Padovan
2
1.44%
1
7.69%
Andre Guedes
1
0.72%
1
7.69%
Total
139
100.00%
13
100.00%



int hci_dev_reset(__u16 dev)
{
	struct hci_dev *hdev;
	int err;

	hdev = hci_dev_get(dev);
	if (!hdev)
		return -ENODEV;

	if (!test_bit(HCI_UP, &hdev->flags)) {
		err = -ENETDOWN;
		goto done;
	}

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		err = -EBUSY;
		goto done;
	}

	if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	err = hci_dev_do_reset(hdev);

done:
	hci_dev_put(hdev);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
102
92.73%
2
50.00%
Linus Torvalds
8
7.27%
2
50.00%
Total
110
100.00%
4
100.00%



int hci_dev_reset_stat(__u16 dev)
{
	struct hci_dev *hdev;
	int ret = 0;

	hdev = hci_dev_get(dev);
	if (!hdev)
		return -ENODEV;

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		ret = -EBUSY;
		goto done;
	}

	if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		ret = -EOPNOTSUPP;
		goto done;
	}

	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));

done:
	hci_dev_put(hdev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
53
54.08%
2
33.33%
Marcel Holtmann
40
40.82%
3
50.00%
Andrei Emeltchenko
5
5.10%
1
16.67%
Total
98
100.00%
6
100.00%



static void hci_update_scan_state(struct hci_dev *hdev, u8 scan)
{
	bool conn_changed, discov_changed;

	BT_DBG("%s scan 0x%02x", hdev->name, scan);

	if ((scan & SCAN_PAGE))
		conn_changed = !hci_dev_test_and_set_flag(hdev,
							  HCI_CONNECTABLE);
	else
		conn_changed = hci_dev_test_and_clear_flag(hdev,
							   HCI_CONNECTABLE);

	if ((scan & SCAN_INQUIRY)) {
		discov_changed = !hci_dev_test_and_set_flag(hdev,
							    HCI_DISCOVERABLE);
	} else {
		hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
		discov_changed = hci_dev_test_and_clear_flag(hdev,
							     HCI_DISCOVERABLE);
	}

	if (!hci_dev_test_flag(hdev, HCI_MGMT))
		return;

	if (conn_changed || discov_changed) {
		/* In case this was disabled through mgmt */
		hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);

		if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
			hci_req_update_adv_data(hdev, hdev->cur_adv_instance);

		mgmt_new_settings(hdev);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
107
72.79%
4
36.36%
Marcel Holtmann
30
20.41%
6
54.55%
Linus Torvalds
10
6.80%
1
9.09%
Total
147
100.00%
11
100.00%



int hci_dev_cmd(unsigned int cmd, void __user *arg)
{
	struct hci_dev *hdev;
	struct hci_dev_req dr;
	int err = 0;

	if (copy_from_user(&dr, arg, sizeof(dr)))
		return -EFAULT;

	hdev = hci_dev_get(dr.dev_id);
	if (!hdev)
		return -ENODEV;

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		err = -EBUSY;
		goto done;
	}

	if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	if (hdev->dev_type != HCI_PRIMARY) {
		err = -EOPNOTSUPP;
		goto done;
	}

	if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
		err = -EOPNOTSUPP;
		goto done;
	}

	switch (cmd) {
	case HCISETAUTH:
		err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt,
				   HCI_INIT_TIMEOUT, NULL);
		break;

	case HCISETENCRYPT:
		if (!lmp_encrypt_capable(hdev)) {
			err = -EOPNOTSUPP;
			break;
		}

		if (!test_bit(HCI_AUTH, &hdev->flags)) {
			/* Auth must be enabled first */
			err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt,
					   HCI_INIT_TIMEOUT, NULL);
			if (err)
				break;
		}

		err = hci_req_sync(hdev, hci_encrypt_req, dr.dev_opt,
				   HCI_INIT_TIMEOUT, NULL);
		break;

	case HCISETSCAN:
		err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt,
				   HCI_INIT_TIMEOUT, NULL);

		/* Ensure that the connectable and discoverable states
                 * get correctly modified as this was a non-mgmt change.
                 */
		if (!err)
			hci_update_scan_state(hdev, dr.dev_opt);
		break;

	case HCISETLINKPOL:
		err = hci_req_sync(hdev, hci_linkpol_req, dr.dev_opt,
				   HCI_INIT_TIMEOUT, NULL);
		break;

	case HCISETLINKMODE:
		hdev->link_mode = ((__u16) dr.dev_opt) &
					(HCI_LM_MASTER | HCI_LM_ACCEPT);
		break;

	case HCISETPTYPE:
		hdev->pkt_type = (__u16) dr.dev_opt;
		break;

	case HCISETACLMTU:
		hdev->acl_mtu  = *((__u16 *) &dr.dev_opt + 1);
		hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0);
		break;

	case HCISETSCOMTU:
		hdev->sco_mtu  = *((__u16 *) &dr.dev_opt + 1);
		hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0);
		break;

	default:
		err = -EINVAL;
		break;
	}

done:
	hci_dev_put(hdev);
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
196
45.06%
1
5.88%
Linus Torvalds
101
23.22%
2
11.76%
Marcel Holtmann
83
19.08%
6
35.29%
Johan Hedberg
47
10.80%
6
35.29%
Andrei Emeltchenko
5
1.15%
1
5.88%
Al Viro
3
0.69%
1
5.88%
Total
435
100.00%
17
100.00%



int hci_get_dev_list(void __user *arg)
{
	struct hci_dev *hdev;
	struct hci_dev_list_req *dl;
	struct hci_dev_req *dr;
	int n = 0, size, err;
	__u16 dev_num;

	if (get_user(dev_num, (__u16 __user *) arg))
		return -EFAULT;

	if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr))
		return -EINVAL;

	size = sizeof(*dl) + dev_num * sizeof(*dr);

	dl = kzalloc(size, GFP_KERNEL);
	if (!dl)
		return -ENOMEM;

	dr = dl->dev_req;

	read_lock(&hci_dev_list_lock);
	list_for_each_entry(hdev, &hci_dev_list, list) {
		unsigned long flags = hdev->flags;

		/* When the auto-off is configured it means the transport
                 * is running, but in that case still indicate that the
                 * device is actually down.
                 */
		if (hci_dev_test_flag(hdev, HCI_AUTO_OFF))
			flags &= ~BIT(HCI_UP);

		(dr + n)->dev_id  = hdev->id;
		(dr + n)->dev_opt = flags;

		if (++n >= dev_num)
			break;
	}
	read_unlock(&hci_dev_list_lock);

	dl->dev_num = n;
	size = sizeof(*dl) + n * sizeof(*dr);

	err = copy_to_user(arg, dl, size);
	kfree(dl);

	return err ? -EFAULT : 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
130
53.72%
3
18.75%
Marcel Holtmann
46
19.01%
3
18.75%
Maksim Krasnyanskiy
34
14.05%
3
18.75%
Johan Hedberg
11
4.55%
2
12.50%
Luiz Augusto von Dentz
9
3.72%
1
6.25%
Andrei Emeltchenko
5
2.07%
1
6.25%
Al Viro
4
1.65%
1
6.25%
Gustavo Fernando Padovan
2
0.83%
1
6.25%
Vegard Nossum
1
0.41%
1
6.25%
Total
242
100.00%
16
100.00%



int hci_get_dev_info(void __user *arg)
{
	struct hci_dev *hdev;
	struct hci_dev_info di;
	unsigned long flags;
	int err = 0;

	if (copy_from_user(&di, arg, sizeof(di)))
		return -EFAULT;

	hdev = hci_dev_get(di.dev_id);
	if (!hdev)
		return -ENODEV;

	/* When the auto-off is configured it means the transport
         * is running, but in that case still indicate that the
         * device is actually down.
         */
	if (hci_dev_test_flag(hdev, HCI_AUTO_OFF))
		flags = hdev->flags & ~BIT(HCI_UP);
	else
		flags = hdev->flags;

	strcpy(di.name, hdev->name);
	di.bdaddr   = hdev->bdaddr;
	di.type     = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4);
	di.flags    = flags;
	di.pkt_type = hdev->pkt_type;
	if (lmp_bredr_capable(hdev)) {
		di.acl_mtu  = hdev->acl_mtu;
		di.acl_pkts = hdev->acl_pkts;
		di.sco_mtu  = hdev->sco_mtu;
		di.sco_pkts = hdev->sco_pkts;
	} else {
		di.acl_mtu  = hdev->le_mtu;
		di.acl_pkts = hdev->le_pkts;
		di.sco_mtu  = 0;
		di.sco_pkts = 0;
	}
	di.link_policy = hdev->link_policy;
	di.link_mode   = hdev->link_mode;

	memcpy(&di.stat, &hdev->stat, sizeof(di.stat));
	memcpy(&di.features, &hdev->features, sizeof(di.features));

	if (copy_to_user(arg, &di, sizeof(di)))
		err = -EFAULT;

	hci_dev_put(hdev);

	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
188
61.24%
2
14.29%
Johan Hedberg
55
17.92%
4
28.57%
Marcel Holtmann
35
11.40%
5
35.71%
Maksim Krasnyanskiy
21
6.84%
1
7.14%
Andrei Emeltchenko
5
1.63%
1
7.14%
Al Viro
3
0.98%
1
7.14%
Total
307
100.00%
14
100.00%

/* ---- Interface to HCI drivers ---- */



static int hci_rfkill_set_block(void *data, bool blocked)
{
	struct hci_dev *hdev = data;

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

	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
		return -EBUSY;

	if (blocked) {
		hci_dev_set_flag(hdev, HCI_RFKILLED);
		if (!hci_dev_test_flag(hdev, HCI_SETUP) &&
		    !hci_dev_test_flag(hdev, HCI_CONFIG))
			hci_dev_do_close(hdev);
	} else {
		hci_dev_clear_flag(hdev, HCI_RFKILLED);
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
75
78.95%
6
75.00%
Johan Hedberg
20
21.05%
2
25.00%
Total
95
100.00%
8
100.00%


static const struct rfkill_ops hci_rfkill_ops = {
	.set_block = hci_rfkill_set_block,
};



static void hci_power_on(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev, power_on);
	int err;

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

	if (test_bit(HCI_UP, &hdev->flags) &&
	    hci_dev_test_flag(hdev, HCI_MGMT) &&
	    hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) {
		cancel_delayed_work(&hdev->power_off);
		hci_req_sync_lock(hdev);
		err = __hci_req_hci_power_on(hdev);
		hci_req_sync_unlock(hdev);
		mgmt_power_on(hdev, err);
		return;
	}

	err = hci_dev_do_open(hdev);
	if (err < 0) {
		hci_dev_lock(hdev);
		mgmt_set_powered_failed(hdev, err);
		hci_dev_unlock(hdev);
		return;
	}

	/* During the HCI setup phase, a few error conditions are
         * ignored and they need to be checked now. If they are still
         * valid, it is important to turn the device back off.
         */
	if (hci_dev_test_flag(hdev, HCI_RFKILLED) ||
	    hci_dev_test_flag(hdev, HCI_UNCONFIGURED) ||
	    (hdev->dev_type == HCI_PRIMARY &&
	     !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
	     !bacmp(&hdev->static_addr, BDADDR_ANY))) {
		hci_dev_clear_flag(hdev, HCI_AUTO_OFF);
		hci_dev_do_close(hdev);
	} else if (hci_dev_test_flag(hdev, HCI_AUTO_OFF)) {
		queue_delayed_work(hdev->req_workqueue, &hdev->power_off,
				   HCI_AUTO_OFF_TIMEOUT);
	}

	if (hci_dev_test_and_clear_flag(hdev, HCI_SETUP)) {
		/* For unconfigured devices, set the HCI_RAW flag
                 * so that userspace can easily identify them.
                 */
		if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
			set_bit(HCI_RAW, &hdev->flags);

		/* For fully configured devices, this will send
                 * the Index Added event. For unconfigured devices,
                 * it will send Unconfigued Index Added event.
                 *
                 * Devices with HCI_QUIRK_RAW_DEVICE are ignored
                 * and no event will be send.
                 */
		mgmt_index_added(hdev);
	} else if (hci_dev_test_and_clear_flag(hdev, HCI_CONFIG)) {
		/* When the controller is now configured, then it
                 * is important to clear the HCI_RAW flag.
                 */
		if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
			clear_bit(HCI_RAW, &hdev->flags);

		/* Powering on the controller with HCI_CONFIG set only
                 * happens with the transition from unconfigured to
                 * configured. This will send the Index Added event.
                 */
		mgmt_index_added(hdev);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
175
59.32%
7
35.00%
Marcel Holtmann
101
34.24%
10
50.00%
Jaganath Kanakkassery
10
3.39%
1
5.00%
Wei-Ning Huang
8
2.71%
1
5.00%
Andrei Emeltchenko
1
0.34%
1
5.00%
Total
295
100.00%
20
100.00%



static void hci_power_off(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev,
					    power_off.work);

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

	hci_dev_do_close(hdev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
41
97.62%
2
66.67%
Marcel Holtmann
1
2.38%
1
33.33%
Total
42
100.00%
3
100.00%



static void hci_error_reset(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev, error_reset);

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

	if (hdev->hw_error)
		hdev->hw_error(hdev, hdev->hw_error_code);
	else
		BT_ERR("%s hardware error 0x%2.2x", hdev->name,
		       hdev->hw_error_code);

	if (hci_dev_do_close(hdev))
		return;

	hci_dev_do_open(hdev);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
79
100.00%
1
100.00%
Total
79
100.00%
1
100.00%



void hci_uuids_clear(struct hci_dev *hdev)
{
	struct bt_uuid *uuid, *tmp;

	list_for_each_entry_safe(uuid, tmp, &hdev->uuids, list) {
		list_del(&uuid->list);
		kfree(uuid);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
43
100.00%
3
100.00%
Total
43
100.00%
3
100.00%



void hci_link_keys_clear(struct hci_dev *hdev)
{
	struct link_key *key;

	list_for_each_entry_rcu(key, &hdev->link_keys, list) {
		list_del_rcu(&key->list);
		kfree_rcu(key, rcu);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
40
100.00%
3
100.00%
Total
40
100.00%
3
100.00%



void hci_smp_ltks_clear(struct hci_dev *hdev)
{
	struct smp_ltk *k;

	list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
		list_del_rcu(&k->list);
		kfree_rcu(k, rcu);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vinicius Costa Gomes
34
85.00%
1
33.33%
Johan Hedberg
6
15.00%
2
66.67%
Total
40
100.00%
3
100.00%



void hci_smp_irks_clear(struct hci_dev *hdev)
{
	struct smp_irk *k;

	list_for_each_entry_rcu(k, &hdev->identity_resolving_keys, list) {
		list_del_rcu(&k->list);
		kfree_rcu(k, rcu);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
40
100.00%
2
100.00%
Total
40
100.00%
2
100.00%



struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
	struct link_key *k;

	rcu_read_lock();
	list_for_each_entry_rcu(k, &hdev->link_keys, list) {
		if (bacmp(bdaddr, &k->bdaddr) == 0) {
			rcu_read_unlock();
			return k;
		}
	}
	rcu_read_unlock();

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
59
95.16%
2
66.67%
Luiz Augusto von Dentz
3
4.84%
1
33.33%
Total
62
100.00%
3
100.00%



static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
			       u8 key_type, u8 old_key_type)
{
	/* Legacy key */
	if (key_type < 0x03)
		return true;

	/* Debug keys are insecure so don't store them persistently */
	if (key_type == HCI_LK_DEBUG_COMBINATION)
		return false;

	/* Changed combination key and there's no previous one */
	if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff)
		return false;

	/* Security mode 3 case */
	if (!conn)
		return true;

	/* BR/EDR key derived using SC from an LE link */
	if (conn->type == LE_LINK)
		return true;

	/* Neither local nor remote side had no-bonding as requirement */
	if (conn->auth_type > 0x01 && conn->remote_auth > 0x01)
		return true;

	/* Local side had dedicated bonding as requirement */
	if (conn->auth_type == 0x02 || conn->auth_type == 0x03)
		return true;

	/* Remote side had dedicated bonding as requirement */
	if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03)
		return true;

	/* If none of the above criteria match, then don't store the key
         * persistently */
	return false;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
126
93.33%
2
66.67%
Vishal Agarwal
9
6.67%
1
33.33%
Total
135
100.00%
3
100.00%



static u8 ltk_role(u8 type)
{
	if (type == SMP_LTK)
		return HCI_ROLE_MASTER;

	return HCI_ROLE_SLAVE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
21
100.00%
3
100.00%
Total
21
100.00%
3
100.00%



struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			     u8 addr_type, u8 role)
{
	struct smp_ltk *k;

	rcu_read_lock();
	list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
		if (addr_type != k->bdaddr_type || bacmp(bdaddr, &k->bdaddr))
			continue;

		if (smp_ltk_is_sc(k) || ltk_role(k->type) == role) {
			rcu_read_unlock();
			return k;
		}
	}
	rcu_read_unlock();

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vinicius Costa Gomes
52
58.43%
2
25.00%
Johan Hedberg
37
41.57%
6
75.00%
Total
89
100.00%
8
100.00%



struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa)
{
	struct smp_irk *irk;

	rcu_read_lock();
	list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) {
		if (!bacmp(&irk->rpa, rpa)) {
			rcu_read_unlock();
			return irk;
		}
	}

	list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) {
		if (smp_irk_matches(hdev, irk->val, rpa)) {
			bacpy(&irk->rpa, rpa);
			rcu_read_unlock();
			return irk;
		}
	}
	rcu_read_unlock();

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
102
100.00%
2
100.00%
Total
102
100.00%
2
100.00%



struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
				     u8 addr_type)
{
	struct smp_irk *irk;

	/* Identity Address must be public or static random */
	if (addr_type == ADDR_LE_DEV_RANDOM && (bdaddr->b[5] & 0xc0) != 0xc0)
		return NULL;

	rcu_read_lock();
	list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) {
		if (addr_type == irk->addr_type &&
		    bacmp(bdaddr, &irk->bdaddr) == 0) {
			rcu_read_unlock();
			return irk;
		}
	}
	rcu_read_unlock();

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
94
100.00%
3
100.00%
Total
94
100.00%
3
100.00%



struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
				  bdaddr_t *bdaddr, u8 *val, u8 type,
				  u8 pin_len, bool *persistent)
{
	struct link_key *key, *old_key;
	u8 old_key_type;

	old_key = hci_find_link_key(hdev, bdaddr);
	if (old_key) {
		old_key_type = old_key->type;
		key = old_key;
	} else {
		old_key_type = conn ? conn->key_type : 0xff;
		key = kzalloc(sizeof(*key), GFP_KERNEL);
		if (!key)
			return NULL;
		list_add_rcu(&key->list, &hdev->link_keys);
	}

	BT_DBG("%s key for %pMR type %u", hdev->name, bdaddr, type);

	/* Some buggy controller combinations generate a changed
         * combination key for legacy pairing even when there's no
         * previous key */
	if (type == HCI_LK_CHANGED_COMBINATION &&
	    (!conn || conn->remote_auth == 0xff) && old_key_type == 0xff) {
		type = HCI_LK_COMBINATION;
		if (conn)
			conn->key_type = type;
	}

	bacpy(&key->bdaddr, bdaddr);
	memcpy(key->val, val, HCI_LINK_KEY_SIZE);
	key->pin_len = pin_len;

	if (type == HCI_LK_CHANGED_COMBINATION)
		key->type = old_key_type;
	else
		key->type = type;

	if (persistent)
		*persistent = hci_persistent_key(hdev, conn, type,
						 old_key_type);

	return key;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
233
98.73%
10
76.92%
Andrei Emeltchenko
2
0.85%
2
15.38%
Vishal Agarwal
1
0.42%
1
7.69%
Total
236
100.00%
13
100.00%



struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 addr_type, u8 type, u8 authenticated,
			    u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand)
{
	struct smp_ltk *key, *old_key;
	u8 role = ltk_role(type);

	old_key = hci_find_ltk(hdev, bdaddr, addr_type, role);
	if (old_key)
		key = old_key;
	else {
		key = kzalloc(sizeof(*key), GFP_KERNEL);
		if (!key)
			return NULL;
		list_add_rcu(&key->list, &hdev->long_term_keys);
	}

	bacpy(&key->bdaddr, bdaddr);
	key->bdaddr_type = addr_type;
	memcpy(key->val, tk, sizeof(key->val));
	key->authenticated = authenticated;
	key->ediv = ediv;
	key->rand = rand;
	key->enc_size = enc_size;
	key->type = type;

	return key;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vinicius Costa Gomes
153
85.47%
3
27.27%
Johan Hedberg
18
10.06%
6
54.55%
Marcel Holtmann
7
3.91%
1
9.09%
Andrei Emeltchenko
1
0.56%
1
9.09%
Total
179
100.00%
11
100.00%



struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 addr_type, u8 val[16], bdaddr_t *rpa)
{
	struct smp_irk *irk;

	irk = hci_find_irk_by_addr(hdev, bdaddr, addr_type);
	if (!irk) {
		irk = kzalloc(sizeof(*irk), GFP_KERNEL);
		if (!irk)
			return NULL;

		bacpy(&irk->bdaddr, bdaddr);
		irk->addr_type = addr_type;

		list_add_rcu(&irk->list, &hdev->identity_resolving_keys);
	}

	memcpy(irk->val, val, 16);
	bacpy(&irk->rpa, rpa);

	return irk;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
126
100.00%
3
100.00%
Total
126
100.00%
3
100.00%



int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
	struct link_key *key;

	key = hci_find_link_key(hdev, bdaddr);
	if (!key)
		return -ENOENT;

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

	list_del_rcu(&key->list);
	kfree_rcu(key, rcu);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
65
98.48%
2
66.67%
Andrei Emeltchenko
1
1.52%
1
33.33%
Total
66
100.00%
3
100.00%



int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type)
{
	struct smp_ltk *k;
	int removed = 0;

	list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
		if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type)
			continue;

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

		list_del_rcu(&k->list);
		kfree_rcu(k, rcu);
		removed++;
	}

	return removed ? 0 : -ENOENT;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vinicius Costa Gomes
65
69.89%
1
20.00%
Johan Hedberg
27
29.03%
3
60.00%
Andrei Emeltchenko
1
1.08%
1
20.00%
Total
93
100.00%
5
100.00%



void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type)
{
	struct smp_irk *k;

	list_for_each_entry_rcu(k, &hdev->identity_resolving_keys, list) {
		if (bacmp(bdaddr, &k->bdaddr) || k->addr_type != addr_type)
			continue;

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

		list_del_rcu(&k->list);
		kfree_rcu(k, rcu);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
77
100.00%
3
100.00%
Total
77
100.00%
3
100.00%



bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
{
	struct smp_ltk *k;
	struct smp_irk *irk;
	u8 addr_type;

	if (type == BDADDR_BREDR) {
		if (hci_find_link_key(hdev, bdaddr))
			return true;
		return false;
	}

	/* Convert to HCI addr type which struct smp_ltk uses */
	if (type == BDADDR_LE_PUBLIC)
		addr_type = ADDR_LE_DEV_PUBLIC;
	else
		addr_type = ADDR_LE_DEV_RANDOM;

	irk = hci_get_irk(hdev, bdaddr, addr_type);
	if (irk) {
		bdaddr = &irk->bdaddr;
		addr_type = irk->addr_type;
	}

	rcu_read_lock();
	list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
		if (k->bdaddr_type == addr_type && !bacmp(bdaddr, &k->bdaddr)) {
			rcu_read_unlock();
			return true;
		}
	}
	rcu_read_unlock();

	return false;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
145
100.00%
3
100.00%
Total
145
100.00%
3
100.00%

/* HCI command timer function */


static void hci_cmd_timeout(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev,
					    cmd_timer.work);

	if (hdev->sent_cmd) {
		struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data;
		u16 opcode = __le16_to_cpu(sent->opcode);

		BT_ERR("%s command 0x%4.4x tx timeout", hdev->name, opcode);
	} else {
		BT_ERR("%s command tx timeout", hdev->name);
	}

	atomic_set(&hdev->cmd_cnt, 1);
	queue_work(hdev->workqueue, &hdev->cmd_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
48
45.28%
1
25.00%
Ville Tervo
37
34.91%
1
25.00%
Marcel Holtmann
15
14.15%
1
25.00%
Gustavo Fernando Padovan
6
5.66%
1
25.00%
Total
106
100.00%
4
100.00%



struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
					  bdaddr_t *bdaddr, u8 bdaddr_type)
{
	struct oob_data *data;

	list_for_each_entry(data, &hdev->remote_oob_data, list) {
		if (bacmp(bdaddr, &data->bdaddr) != 0)
			continue;
		if (data->bdaddr_type != bdaddr_type)
			continue;
		return data;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Szymon Janc
48
75.00%
1
50.00%
Johan Hedberg
16
25.00%
1
50.00%
Total
64
100.00%
2
100.00%



int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
			       u8 bdaddr_type)
{
	struct oob_data *data;

	data = hci_find_remote_oob_data(hdev, bdaddr, bdaddr_type);
	if (!data)
		return -ENOENT;

	BT_DBG("%s removing %pMR (%u)", hdev->name, bdaddr, bdaddr_type);

	list_del(&data->list);
	kfree(data);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Szymon Janc
63
88.73%
1
50.00%
Johan Hedberg
8
11.27%
1
50.00%
Total
71
100.00%
2
100.00%



void hci_remote_oob_data_clear(struct hci_dev *hdev)
{
	struct oob_data *data, *n;

	list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) {
		list_del(&data->list);
		kfree(data);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Szymon Janc
39
90.70%
1
33.33%
Marcel Holtmann
3
6.98%
1
33.33%
Johan Hedberg
1
2.33%
1
33.33%
Total
43
100.00%
3
100.00%



int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
			    u8 bdaddr_type, u8 *hash192, u8 *rand192,
			    u8 *hash256, u8 *rand256)
{
	struct oob_data *data;

	data = hci_find_remote_oob_data(hdev, bdaddr, bdaddr_type);
	if (!data) {
		data = kmalloc(sizeof(*data), GFP_KERNEL);
		if (!data)
			return -ENOMEM;

		bacpy(&data->bdaddr, bdaddr);
		data->bdaddr_type = bdaddr_type;
		list_add(&data->list, &hdev->remote_oob_data);
	}

	if (hash192 && rand192) {
		memcpy(data->hash192, hash192, sizeof(data->hash192));
		memcpy(data->rand192, rand192, sizeof(data->rand192));
		if (hash256 && rand256)
			data->present = 0x03;
	} else {
		memset(data->hash192, 0, sizeof(data->hash192));
		memset(data->rand192, 0, sizeof(data->rand192));
		if (hash256 && rand256)
			data->present = 0x02;
		else
			data->present = 0x00;
	}

	if (hash256 && rand256) {
		memcpy(data->hash256, hash256, sizeof(data->hash256));
		memcpy(data->rand256, rand256, sizeof(data->rand256));
	} else {
		memset(data->hash256, 0, sizeof(data->hash256));
		memset(data->rand256, 0, sizeof(data->rand256));
		if (hash192 && rand192)
			data->present = 0x01;
	}

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

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
221
70.38%
3
25.00%
Johan Hedberg
60
19.11%
5
41.67%
Antti Julku
23
7.32%
2
16.67%
Szymon Janc
9
2.87%
1
8.33%
Andrei Emeltchenko
1
0.32%
1
8.33%
Total
314
100.00%
12
100.00%

/* This function requires the caller holds hdev->lock */


struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance)
{
	struct adv_info *adv_instance;

	list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
		if (adv_instance->instance == instance)
			return adv_instance;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Grandel
44
100.00%
1
100.00%
Total
44
100.00%
1
100.00%

/* This function requires the caller holds hdev->lock */


struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance)
{
	struct adv_info *cur_instance;

	cur_instance = hci_find_adv_instance(hdev, instance);
	if (!cur_instance)
		return NULL;

	if (cur_instance == list_last_entry(&hdev->adv_instances,
					    struct adv_info, list))
		return list_first_entry(&hdev->adv_instances,
						 struct adv_info, list);
	else
		return list_next_entry(cur_instance, list);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Grandel
77
100.00%
1
100.00%
Total
77
100.00%
1
100.00%

/* This function requires the caller holds hdev->lock */


int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance)
{
	struct adv_info *adv_instance;

	adv_instance = hci_find_adv_instance(hdev, instance);
	if (!adv_instance)
		return -ENOENT;

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

	if (hdev->cur_adv_instance == instance) {
		if (hdev->adv_instance_timeout) {
			cancel_delayed_work(&hdev->adv_instance_expire);
			hdev->adv_instance_timeout = 0;
		}
		hdev->cur_adv_instance = 0x00;
	}

	list_del(&adv_instance->list);
	kfree(adv_instance);

	hdev->adv_instance_cnt--;

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Grandel
95
89.62%
2
66.67%
Johan Hedberg
11
10.38%
1
33.33%
Total
106
100.00%
3
100.00%

/* This function requires the caller holds hdev->lock */


void hci_adv_instances_clear(struct hci_dev *hdev)
{
	struct adv_info *adv_instance, *n;

	if (hdev->adv_instance_timeout) {
		cancel_delayed_work(&hdev->adv_instance_expire);
		hdev->adv_instance_timeout = 0;
	}

	list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
		list_del(&adv_instance->list);
		kfree(adv_instance);
	}

	hdev->adv_instance_cnt = 0;
	hdev->cur_adv_instance = 0x00;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Grandel
71
92.21%
2
66.67%
Johan Hedberg
6
7.79%
1
33.33%
Total
77
100.00%
3
100.00%

/* This function requires the caller holds hdev->lock */


int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
			 u16 adv_data_len, u8 *adv_data,
			 u16 scan_rsp_len, u8 *scan_rsp_data,
			 u16 timeout, u16 duration)
{
	struct adv_info *adv_instance;

	adv_instance = hci_find_adv_instance(hdev, instance);
	if (adv_instance) {
		memset(adv_instance->adv_data, 0,
		       sizeof(adv_instance->adv_data));
		memset(adv_instance->scan_rsp_data, 0,
		       sizeof(adv_instance->scan_rsp_data));
	} else {
		if (hdev->adv_instance_cnt >= HCI_MAX_ADV_INSTANCES ||
		    instance < 1 || instance > HCI_MAX_ADV_INSTANCES)
			return -EOVERFLOW;

		adv_instance = kzalloc(sizeof(*adv_instance), GFP_KERNEL);
		if (!adv_instance)
			return -ENOMEM;

		adv_instance->pending = true;
		adv_instance->instance = instance;
		list_add(&adv_instance->list, &hdev->adv_instances);
		hdev->adv_instance_cnt++;
	}

	adv_instance->flags = flags;
	adv_instance->adv_data_len = adv_data_len;
	adv_instance->scan_rsp_len = scan_rsp_len;

	if (adv_data_len)
		memcpy(adv_instance->adv_data, adv_data, adv_data_len);

	if (scan_rsp_len)
		memcpy(adv_instance->scan_rsp_data,
		       scan_rsp_data, scan_rsp_len);

	adv_instance->timeout = timeout;
	adv_instance->remaining_time = timeout;

	if (duration == 0)
		adv_instance->duration = HCI_DEFAULT_ADV_DURATION;
	else
		adv_instance->duration = duration;

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

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Florian Grandel
255
99.61%
3
75.00%
Johan Hedberg
1
0.39%
1
25.00%
Total
256
100.00%
4
100.00%



struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list,
					 bdaddr_t *bdaddr, u8 type)
{
	struct bdaddr_list *b;

	list_for_each_entry(b, bdaddr_list, list) {
		if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)
			return b;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
55
93.22%
1
50.00%
Johan Hedberg
4
6.78%
1
50.00%
Total
59
100.00%
2
100.00%



void hci_bdaddr_list_clear(struct list_head *bdaddr_list)
{
	struct bdaddr_list *b, *n;

	list_for_each_entry_safe(b, n, bdaddr_list, list) {
		list_del(&b->list);
		kfree(b);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
29
67.44%
1
33.33%
Geliang Tang
10
23.26%
1
33.33%
Johan Hedberg
4
9.30%
1
33.33%
Total
43
100.00%
3
100.00%



int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type)
{
	struct bdaddr_list *entry;

	if (!bacmp(bdaddr, BDADDR_ANY))
		return -EBADF;

	if (hci_bdaddr_list_lookup(list, bdaddr, type))
		return -EEXIST;

	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
	if (!entry)
		return -ENOMEM;

	bacpy(&entry->bdaddr, bdaddr);
	entry->bdaddr_type = type;

	list_add(&entry->list, list);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
83
81.37%
2
33.33%
Antti Julku
12
11.76%
2
33.33%
Johan Hedberg
7
6.86%
2
33.33%
Total
102
100.00%
6
100.00%



int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type)
{
	struct bdaddr_list *entry;

	if (!bacmp(bdaddr, BDADDR_ANY)) {
		hci_bdaddr_list_clear(list);
		return 0;
	}

	entry = hci_bdaddr_list_lookup(list, bdaddr, type);
	if (!entry)
		return -ENOENT;

	list_del(&entry->list);
	kfree(entry);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
73
93.59%
1
50.00%
Johan Hedberg
5
6.41%
1
50.00%
Total
78
100.00%
2
100.00%

/* This function requires the caller holds hdev->lock */


struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
					       bdaddr_t *addr, u8 addr_type)
{
	struct hci_conn_params *params;

	list_for_each_entry(params, &hdev->le_conn_params, list) {
		if (bacmp(&params->addr, addr) == 0 &&
		    params->addr_type == addr_type) {
			return params;
		}
	}

	return NULL;
}

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Prop
Commits
CommitProp
Andre Guedes
62
100.00%
1
100.00%
Total
62
100.00%
1
100.00%

/* This function requires the caller holds hdev->lock */


struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
						  bdaddr_t *addr, u8 addr_type)
{
	struct hci_conn_params *param;

	list_for_each_entry(param, list, action) {
		if (bacmp(&param->addr, addr) == 0 &&
		    param->addr_type == addr_type)
			return param;
	}

	return NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andre Guedes
28
46.67%
2
28.57%
Marcel Holtmann
17
28.33%
1
14.29%
Johan Hedberg
14
23.33%
3
42.86%
Jakub Pawlowski
1
1.67%
1
14.29%
Total
60
100.00%
7
100.00%

/* This function requires the caller holds hdev->lock */


struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
					    bdaddr_t *addr, u8 addr_type)
{
	struct hci_conn_params *params;

	params = hci_conn_params_lookup(hdev, addr, addr_type);
	if (params)
		return params;

	params = kzalloc(sizeof(*params), GFP_KERNEL);
	if (!params) {
		BT_ERR("Out of memory");
		return NULL;
	}

	bacpy(&params->addr, addr);
	params->addr_type = addr_type;

	list_add(&params->list, &hdev->le_conn_params);
	INIT_LIST_HEAD(&params->action);

	params->conn_min_interval = hdev->le_conn_min_interval;
	params->conn_max_interval = hdev->le_conn_max_interval;
	params->conn_latency = hdev->le_conn_latency;
	params->supervision_timeout = hdev->le_supv_timeout;
	params->auto_connect = HCI_AUTO_CONN_DISABLED;

	BT_DBG("addr %pMR (type %u)", addr, addr_type);

	return params;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andre Guedes
116
73.89%
4
50.00%
Marcel Holtmann
33
21.02%
2
25.00%
Johan Hedberg
8
5.10%
2
25.00%
Total
157
100.00%
8
100.00%



static void hci_conn_params_free(struct hci_conn_params *params)
{
	if (params->conn) {
		hci_conn_drop(params->conn);
		hci_conn_put(params->conn);
	}

	list_del(&params->action);
	list_del(&params->list);
	kfree(params);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
30
55.56%
5
71.43%
Andre Guedes
20
37.04%
1
14.29%
Marcel Holtmann
4
7.41%
1
14.29%
Total
54
100.00%
7
100.00%

/* This function requires the caller holds hdev->lock */


void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
{
	struct hci_conn_params *params;

	params = hci_conn_params_lookup(hdev, addr, addr_type);
	if (!params)
		return;

	hci_conn_params_free(params);

	hci_update_background_scan(hdev);

	BT_DBG("addr %pMR (type %u)", addr, addr_type);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
45
77.59%
2
66.67%
Andre Guedes
13
22.41%
1
33.33%
Total
58
100.00%
3
100.00%

/* This function requires the caller holds hdev->lock */


void hci_conn_params_clear_disabled(struct hci_dev *hdev)
{
	struct hci_conn_params *params, *tmp;

	list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) {
		if (params->auto_connect != HCI_AUTO_CONN_DISABLED)
			continue;

		/* If trying to estabilish one time connection to disabled
                 * device, leave the params, but mark them as just once.
                 */
		if (params->explicit_connect) {
			params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
			continue;
		}

		list_del(&params->list);
		kfree(params);
	}

	BT_DBG("All LE disabled connection parameters were removed");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andre Guedes
34
46.58%
2
50.00%
Johan Hedberg
23
31.51%
1
25.00%
Jakub Pawlowski
16
21.92%
1
25.00%
Total
73
100.00%
4
100.00%

/* This function requires the caller holds hdev->lock */


static void hci_conn_params_clear_all(struct hci_dev *hdev)
{
	struct hci_conn_params *params, *tmp;

	list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list)
		hci_conn_params_free(params);

	BT_DBG("All LE connection parameters were removed");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andre Guedes
30
76.92%
1
20.00%
Marcel Holtmann
6
15.38%
1
20.00%
Johan Hedberg
3
7.69%
3
60.00%
Total
39
100.00%
5
100.00%

/* Copy the Identity Address of the controller.
 *
 * If the controller has a public BD_ADDR, then by default use that one.
 * If this is a LE only controller without a public address, default to
 * the static random address.
 *
 * For debugging purposes it is possible to force controllers with a
 * public address to use the static random address instead.
 *
 * In case BR/EDR has been disabled on a dual-mode controller and
 * userspace has configured a static address, then that address
 * becomes the identity address instead of the public BR/EDR address.
 */


void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
			       u8 *bdaddr_type)
{
	if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
	    !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
	    (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
	     bacmp(&hdev->static_addr, BDADDR_ANY))) {
		bacpy(bdaddr, &hdev->static_addr);
		*bdaddr_type = ADDR_LE_DEV_RANDOM;
	} else {
		bacpy(bdaddr, &hdev->bdaddr);
		*bdaddr_type = ADDR_LE_DEV_PUBLIC;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
64
68.82%
1
25.00%
Andre Guedes
28
30.11%
2
50.00%
Marcel Holtmann
1
1.08%
1
25.00%
Total
93
100.00%
4
100.00%

/* Alloc HCI device */


struct hci_dev *hci_alloc_dev(void)
{
	struct hci_dev *hdev;

	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
	if (!hdev)
		return NULL;

	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
	hdev->esco_type = (ESCO_HV1);
	hdev->link_mode = (HCI_LM_ACCEPT);
	hdev->num_iac = 0x01;		/* One IAC support is mandatory */
	hdev->io_capability = 0x03;	/* No Input No Output */
	hdev->manufacturer = 0xffff;	/* Default to internal use */
	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
	hdev->adv_instance_cnt = 0;
	hdev->cur_adv_instance = 0x00;
	hdev->adv_instance_timeout = 0;

	hdev->sniff_max_interval = 800;
	hdev->sniff_min_interval = 80;

	hdev->le_adv_channel_map = 0x07;
	hdev->le_adv_min_interval = 0x0800;
	hdev->le_adv_max_interval = 0x0800;
	hdev->le_scan_interval = 0x0060;
	hdev->le_scan_window = 0x0030;
	hdev->le_conn_min_interval = 0x0028;
	hdev->le_conn_max_interval = 0x0038;
	hdev->le_conn_latency = 0x0000;
	hdev->le_supv_timeout = 0x002a;
	hdev->le_def_tx_len = 0x001b;
	hdev->le_def_tx_time = 0x0148;
	hdev->le_max_tx_len = 0x001b;
	hdev->le_max_tx_time = 0x0148;
	hdev->le_max_rx_len = 0x001b;
	hdev->le_max_rx_time = 0x0148;

	hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
	hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
	hdev->conn_info_min_age = DEFAULT_CONN_INFO_MIN_AGE;
	hdev->conn_info_max_age = DEFAULT_CONN_INFO_MAX_AGE;

	mutex_init(&hdev->lock);
	mutex_init(&hdev->req_lock);

	INIT_LIST_HEAD(&hdev->mgmt_pending);
	INIT_LIST_HEAD(&hdev->blacklist);
	INIT_LIST_HEAD(&hdev->whitelist);
	INIT_LIST_HEAD(&hdev->uuids);
	INIT_LIST_HEAD(&hdev->link_keys);
	INIT_LIST_HEAD(&hdev->long_term_keys);
	INIT_LIST_HEAD(&hdev->identity_resolving_keys);
	INIT_LIST_HEAD(&hdev->remote_oob_data);
	INIT_LIST_HEAD(&hdev->le_white_list);
	INIT_LIST_HEAD(&hdev->le_conn_params);
	INIT_LIST_HEAD(&hdev->pend_le_conns);
	INIT_LIST_HEAD(&hdev->pend_le_reports);
	INIT_LIST_HEAD(&hdev->conn_hash.list);
	INIT_LIST_HEAD(&hdev->adv_instances);

	INIT_WORK(&hdev->rx_work, hci_rx_work);
	INIT_WORK(&hdev->cmd_work, hci_cmd_work);
	INIT_WORK(&hdev->tx_work, hci_tx_work);
	INIT_WORK(&hdev->power_on, hci_power_on);
	INIT_WORK(&hdev->error_reset, hci_error_reset);

	INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);

	skb_queue_head_init(&hdev->rx_q);
	skb_queue_head_init(&hdev->cmd_q);
	skb_queue_head_init(&hdev->raw_q);

	init_waitqueue_head(&hdev->req_wait_q);

	INIT_DELAYED_WORK(&hdev->cmd_timer, hci_cmd_timeout);

	hci_request_setup(hdev);

	hci_init_sysfs(hdev);
	discovery_init(hdev);

	return hdev;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
315
64.29%
8
33.33%
Marcel Holtmann
62
12.65%
5
20.83%
Florian Grandel
26
5.31%
2
8.33%
David Herrmann
22
4.49%
2
8.33%
Andre Guedes
18
3.67%
1
4.17%
Linus Torvalds
15
3.06%
1
4.17%
Maksim Krasnyanskiy
15
3.06%
1
4.17%
Ville Tervo
7
1.43%
1
4.17%
Andrei Emeltchenko
4
0.82%
1
4.17%
Jakub Pawlowski
4
0.82%
1
4.17%
Wesley Kuo
2
0.41%
1
4.17%
Total
490
100.00%
24
100.00%


EXPORT_SYMBOL(hci_alloc_dev);

/* Free HCI device */


void hci_free_dev(struct hci_dev *hdev)
{
	/* will free via device release */
	put_device(&hdev->dev);
}
Contributors
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Commits
CommitProp
David Herrmann
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%


EXPORT_SYMBOL(hci_free_dev);

/* Register HCI device */


int hci_register_dev(struct hci_dev *hdev)
{
	int id, error;

	if (!hdev->open || !hdev->close || !hdev->send)
		return -EINVAL;

	/* Do not allow HCI_AMP devices to register at index 0,
         * so the index can be used as the AMP controller ID.
         */
	switch (hdev->dev_type) {
	case HCI_PRIMARY:
		id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL);
		break;
	case HCI_AMP:
		id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL);
		break;
	default:
		return -EINVAL;
	}

	if (id < 0)
		return id;

	sprintf(hdev->name, "hci%d", id);
	hdev->id = id;

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

	hdev->workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND |
					  WQ_MEM_RECLAIM, 1, hdev->name);
	if (!hdev->workqueue) {
		error = -ENOMEM;
		goto err;
	}

	hdev->req_workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND |
					      WQ_MEM_RECLAIM, 1, hdev->name);
	if (!hdev->req_workqueue) {
		destroy_workqueue(hdev->workqueue);
		error = -ENOMEM;
		goto err;
	}

	if (!IS_ERR_OR_NULL(bt_debugfs))
		hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);

	dev_set_name(&hdev->dev, "%s", hdev->name);

	error = device_add(&hdev->dev);
	if (error < 0)
		goto err_wqueue;

	hci_leds_init(hdev);

	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
				    RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops,
				    hdev);
	if (hdev->rfkill) {
		if (rfkill_register(hdev->rfkill) < 0) {
			rfkill_destroy(hdev->rfkill);
			hdev->rfkill = NULL;
		}
	}

	if (hdev->rfkill && rfkill_blocked(hdev->rfkill))
		hci_dev_set_flag(hdev, HCI_RFKILLED);

	hci_dev_set_flag(hdev, HCI_SETUP);
	hci_dev_set_flag(hdev, HCI_AUTO_OFF);

	if (hdev->dev_type == HCI_PRIMARY) {
		/* Assume BR/EDR support until proven otherwise (such as
                 * through reading supported features during init.
                 */
		hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
	}

	write_lock(&hci_dev_list_lock);
	list_add(&hdev->list, &hci_dev_list);
	write_unlock(&hci_dev_list_lock);

	/* Devices that are marked for raw-only usage are unconfigured
         * and should not be included in normal operation.
         */
	if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
		hci_dev_set_flag(hdev, HCI_UNCONFIGURED);

	hci_sock_dev_event(hdev, HCI_DEV_REG);
	hci_dev_hold(hdev);

	queue_work(hdev->req_workqueue, &hdev->power_on);

	return id;

err_wqueue:
	destroy_workqueue(hdev->workqueue);
	destroy_workqueue(hdev->req_workqueue);
err:
	ida_simple_remove(&hci_index_ida, hdev->id);

	return error;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
170
35.49%
12
34.29%
David Herrmann
110
22.96%
4
11.43%
Johan Hedberg
86
17.95%
9
25.71%
Sasha Levin
50
10.44%
1
2.86%
Gustavo Fernando Padovan
32
6.68%
2
5.71%
Maksim Krasnyanskiy
10
2.09%
2
5.71%
Kees Cook
10
2.09%
1
2.86%
Heiner Kallweit
5
1.04%
1
2.86%
Andre Guedes
2
0.42%
1
2.86%
Linus Torvalds
2
0.42%
1
2.86%
Maxim Krasnyansky
2
0.42%
1
2.86%
Total
479
100.00%
35
100.00%


EXPORT_SYMBOL(hci_register_dev);

/* Unregister HCI device */


void hci_unregister_dev(struct hci_dev *hdev)
{
	int id;

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

	hci_dev_set_flag(hdev, HCI_UNREGISTER);

	id = hdev->id;

	write_lock(&hci_dev_list_lock);
	list_del(&hdev->list);
	write_unlock(&hci_dev_list_lock);

	cancel_work_sync(&hdev->power_on);

	hci_dev_do_close(hdev);

	if (!test_bit(HCI_INIT, &hdev->flags) &&
	    !hci_dev_test_flag(hdev, HCI_SETUP) &&
	    !hci_dev_test_flag(hdev, HCI_CONFIG)) {
		hci_dev_lock(hdev);
		mgmt_index_removed(hdev);
		hci_dev_unlock(hdev);
	}

	/* mgmt_index_removed should take care of emptying the
         * pending list */
	BUG_ON(!list_empty(&hdev->mgmt_pending));

	hci_sock_dev_event(hdev, HCI_DEV_UNREG);

	if (hdev->rfkill) {
		rfkill_unregister(hdev->rfkill);
		rfkill_destroy(hdev->rfkill);
	}

	device_del(&hdev->dev);

	debugfs_remove_recursive(hdev->debugfs);
	kfree_const(hdev->hw_info);
	kfree_const(hdev->fw_info);

	destroy_workqueue(hdev->workqueue);
	destroy_workqueue(hdev->req_workqueue);

	hci_dev_lock(hdev);
	hci_bdaddr_list_clear(&hdev->blacklist);
	hci_bdaddr_list_clear(&hdev->whitelist);
	hci_uuids_clear(hdev);
	hci_link_keys_clear(hdev);
	hci_smp_ltks_clear(hdev);
	hci_smp_irks_clear(hdev);
	hci_remote_oob_data_clear(hdev);
	hci_adv_instances_clear(hdev);
	hci_bdaddr_list_clear(&hdev->le_white_list);
	hci_conn_params_clear_all(hdev);
	hci_discovery_filter_clear(hdev);
	hci_dev_unlock(hdev);

	hci_dev_put(hdev);

	ida_simple_remove(&hci_index_ida, id);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
97
33.22%
12
29.27%
Marcel Holtmann
78
26.71%
12
29.27%
Maksim Krasnyanskiy
49
16.78%
2
4.88%
Sasha Levin
15
5.14%
1
2.44%
Gustavo Fernando Padovan
14
4.79%
3
7.32%
Andre Guedes
8
2.74%
2
4.88%
Jiri Slaby
5
1.71%
1
2.44%
Vinicius Costa Gomes
5
1.71%
1
2.44%
Szymon Janc
5
1.71%
1
2.44%
Florian Grandel
5
1.71%
1
2.44%
Johan Hovold
4
1.37%
1
2.44%
Dave Young
4
1.37%
1
2.44%
David Herrmann
2
0.68%
2
4.88%
Linus Torvalds
1
0.34%
1
2.44%
Total
292
100.00%
41
100.00%


EXPORT_SYMBOL(hci_unregister_dev);

/* Suspend HCI device */


int hci_suspend_dev(struct hci_dev *hdev)
{
	hci_sock_dev_event(hdev, HCI_DEV_SUSPEND);
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
19
95.00%
1
50.00%
Marcel Holtmann
1
5.00%
1
50.00%
Total
20
100.00%
2
100.00%


EXPORT_SYMBOL(hci_suspend_dev);

/* Resume HCI device */


int hci_resume_dev(struct hci_dev *hdev)
{
	hci_sock_dev_event(hdev, HCI_DEV_RESUME);
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
19
95.00%
1
50.00%
Marcel Holtmann
1
5.00%
1
50.00%
Total
20
100.00%
2
100.00%


EXPORT_SYMBOL(hci_resume_dev);

/* Reset HCI device */


int hci_reset_dev(struct hci_dev *hdev)
{
	const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 };
	struct sk_buff *skb;

	skb = bt_skb_alloc(3, GFP_ATOMIC);
	if (!skb)
		return -ENOMEM;

	hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
	memcpy(skb_put(skb, 3), hw_err, 3);

	/* Send Hardware Error to upper stack */
	return hci_recv_frame(hdev, skb);
}
Contributors
Person
Tokens
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CommitProp
Marcel Holtmann
76
100.00%
2
100.00%
Total
76
100.00%
2
100.00%


EXPORT_SYMBOL(hci_reset_dev);

/* Receive frame from HCI drivers */


int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
		      && !test_bit(HCI_INIT, &hdev->flags))) {
		kfree_skb(skb);
		return -ENXIO;
	}

	if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT &&
	    hci_skb_pkt_type(skb) != HCI_ACLDATA_PKT &&
	    hci_skb_pkt_type(skb) != HCI_SCODATA_PKT) {
		kfree_skb(skb);
		return -EINVAL;
	}

	/* Incoming skb */
	bt_cb(skb)->incoming = 1;

	/* Time stamp */
	__net_timestamp(skb);

	skb_queue_tail(&hdev->rx_q, skb);
	queue_work(hdev->workqueue, &hdev->rx_work);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
129
99.23%
6
85.71%
Jorrit Schippers
1
0.77%
1
14.29%
Total
130
100.00%
7
100.00%


EXPORT_SYMBOL(hci_recv_frame);

/* Receive diagnostic message from HCI drivers */


int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb)
{
	/* Mark as diagnostic packet */
	hci_skb_pkt_type(skb) = HCI_DIAG_PKT;

	/* Time stamp */
	__net_timestamp(skb);

	skb_queue_tail(&hdev->rx_q, skb);
	queue_work(hdev->workqueue, &hdev->rx_work);

	return 0;
}
Contributors
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CommitProp
Marcel Holtmann
54
100.00%
3
100.00%
Total
54
100.00%
3
100.00%


EXPORT_SYMBOL(hci_recv_diag);



void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...)
{
	va_list vargs;

	va_start(vargs, fmt);
	kfree_const(hdev->hw_info);
	hdev->hw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs);
	va_end(vargs);
}
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Marcel Holtmann
52
100.00%
1
100.00%
Total
52
100.00%
1
100.00%


EXPORT_SYMBOL(hci_set_hw_info);



void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...)
{
	va_list vargs;

	va_start(vargs, fmt);
	kfree_const(hdev->fw_info);
	hdev->fw_info = kvasprintf_const(GFP_KERNEL, fmt, vargs);
	va_end(vargs);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
52
100.00%
1
100.00%
Total
52
100.00%
1
100.00%


EXPORT_SYMBOL(hci_set_fw_info);

/* ---- Interface to upper protocols ---- */



int hci_register_cb(struct hci_cb *cb)
{
	BT_DBG("%p name %s", cb, cb->name);

	mutex_lock(&hci_cb_list_lock);
	list_add_tail(&cb->list, &hci_cb_list);
	mutex_unlock(&hci_cb_list_lock);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
44
93.62%
1
33.33%
Johan Hedberg
3
6.38%
2
66.67%
Total
47
100.00%
3
100.00%


EXPORT_SYMBOL(hci_register_cb);



int hci_unregister_cb(struct hci_cb *cb)
{
	BT_DBG("%p name %s", cb, cb->name);

	mutex_lock(&hci_cb_list_lock);
	list_del(&cb->list);
	mutex_unlock(&hci_cb_list_lock);

	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
42
95.45%
1
50.00%
Johan Hedberg
2
4.55%
1
50.00%
Total
44
100.00%
2
100.00%


EXPORT_SYMBOL(hci_unregister_cb);



static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
	int err;

	BT_DBG("%s type %d len %d", hdev->name, hci_skb_pkt_type(skb),
	       skb->len);

	/* Time stamp */
	__net_timestamp(skb);

	/* Send copy to monitor */
	hci_send_to_monitor(hdev, skb);

	if (atomic_read(&hdev->promisc)) {
		/* Send copy to the sockets */
		hci_send_to_sock(hdev, skb);
	}

	/* Get rid of skb owner, prior to sending to the driver. */
	skb_orphan(skb);

	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
		kfree_skb(skb);
		return;
	}

	err = hdev->send(hdev, skb);
	if (err < 0) {
		BT_ERR("%s sending frame failed (%d)", hdev->name, err);
		kfree_skb(skb);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
77
57.89%
8
72.73%
Linus Torvalds
29
21.80%
2
18.18%
Maksim Krasnyanskiy
27
20.30%
1
9.09%
Total
133
100.00%
11
100.00%

/* Send HCI command */


int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
		 const void *param)
{
	struct sk_buff *skb;

	BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen);

	skb = hci_prepare_cmd(hdev, opcode, plen, param);
	if (!skb) {
		BT_ERR("%s no memory for command", hdev->name);
		return -ENOMEM;
	}

	/* Stand-alone HCI commands must be flagged as
         * single-command requests.
         */
	bt_cb(skb)->hci.req_flags |= HCI_REQ_START;

	skb_queue_tail(&hdev->cmd_q, skb);
	queue_work(hdev->workqueue, &hdev->cmd_work);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
99
90.83%
4
66.67%
Andre Guedes
9
8.26%
1
16.67%
Marcel Holtmann
1
0.92%
1
16.67%
Total
109
100.00%
6
100.00%

/* Get data from the previously sent command */


void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
{
	struct hci_command_hdr *hdr;

	if (!hdev->sent_cmd)
		return NULL;

	hdr = (void *) hdev->sent_cmd->data;

	if (hdr->opcode != cpu_to_le16(opcode))
		return NULL;

	BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);

	return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
33
44.00%
2
22.22%
Maksim Krasnyanskiy
22
29.33%
2
22.22%
Linus Torvalds
16
21.33%
2
22.22%
Marcel Holtmann
3
4.00%
2
22.22%
Hideaki Yoshifuji / 吉藤英明
1
1.33%
1
11.11%
Total
75
100.00%
9
100.00%

/* Send HCI command and wait for command commplete event */


struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
			     const void *param, u32 timeout)
{
	struct sk_buff *skb;

	if (!test_bit(HCI_UP, &hdev->flags))
		return ERR_PTR(-ENETDOWN);

	bt_dev_dbg(hdev, "opcode 0x%4.4x plen %d", opcode, plen);

	hci_req_sync_lock(hdev);
	skb = __hci_cmd_sync(hdev, opcode, plen, param, timeout);
	hci_req_sync_unlock(hdev);

	return skb;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Loic Poulain
88
97.78%
1
50.00%
Johan Hedberg
2
2.22%
1
50.00%
Total
90
100.00%
2
100.00%


EXPORT_SYMBOL(hci_cmd_sync);

/* Send ACL data */


static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags)
{
	struct hci_acl_hdr *hdr;
	int len = skb->len;

	skb_push(skb, HCI_ACL_HDR_SIZE);
	skb_reset_transport_header(skb);
	hdr = (struct hci_acl_hdr *)skb_transport_header(skb);
	hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags));
	hdr->dlen   = cpu_to_le16(len);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
68
89.47%
3
50.00%
Linus Torvalds
7
9.21%
2
33.33%
Marcel Holtmann
1
1.32%
1
16.67%
Total
76
100.00%
6
100.00%



static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue,
			  struct sk_buff *skb, __u16 flags)
{
	struct hci_conn *conn = chan->conn;
	struct hci_dev *hdev = conn->hdev;
	struct sk_buff *list;

	skb->len = skb_headlen(skb);
	skb->data_len = 0;

	hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;

	switch (hdev->dev_type) {
	case HCI_PRIMARY:
		hci_add_acl_hdr(skb, conn->handle, flags);
		break;
	case HCI_AMP:
		hci_add_acl_hdr(skb, chan->handle, flags);
		break;
	default:
		BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
		return;
	}

	list = skb_shinfo(skb)->frag_list;
	if (!list) {
		/* Non fragmented */
		BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len);

		skb_queue_tail(queue, skb);
	} else {
		/* Fragmented */
		BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);

		skb_shinfo(skb)->frag_list = NULL;

		/* Queue all fragments atomically. We need to use spin_lock_bh
                 * here because of 6LoWPAN links, as there this function is
                 * called from softirq and using normal spin lock could cause
                 * deadlocks.
                 */
		spin_lock_bh(&queue->lock);

		__skb_queue_tail(queue, skb);

		flags &= ~ACL_START;
		flags |= ACL_CONT;
		do {
			skb = list; list = list->next;

			hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
			hci_add_acl_hdr(skb, conn->handle, flags);

			BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);

			__skb_queue_tail(queue, skb);
		} while (list);

		spin_unlock_bh(&queue->lock);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
236
84.29%
3
25.00%
Linus Torvalds
16
5.71%
1
8.33%
Arnaldo Carvalho de Melo
10
3.57%
2
16.67%
Andre Guedes
8
2.86%
3
25.00%
Maksim Krasnyanskiy
7
2.50%
1
8.33%
Marcel Holtmann
3
1.07%
2
16.67%
Total
280
100.00%
12
100.00%



void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
{
	struct hci_dev *hdev = chan->conn->hdev;

	BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags);

	hci_queue_acl(chan, &chan->data_q, skb, flags);

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

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
26
38.24%
2
25.00%
Johan Hedberg
19
27.94%
1
12.50%
Linus Torvalds
12
17.65%
2
25.00%
Gustavo Fernando Padovan
7
10.29%
2
25.00%
Maksim Krasnyanskiy
4
5.88%
1
12.50%
Total
68
100.00%
8
100.00%

/* Send SCO data */


void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
{
	struct hci_dev *hdev = conn->hdev;
	struct hci_sco_hdr hdr;

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

	hdr.handle = cpu_to_le16(conn->handle);
	hdr.dlen   = skb->len;

	skb_push(skb, HCI_SCO_HDR_SIZE);
	skb_reset_transport_header(skb);
	memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);

	hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;

	skb_queue_tail(&conn->data_q, skb);
	queue_work(hdev->workqueue, &hdev->tx_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
61
53.51%
1
16.67%
Maksim Krasnyanskiy
31
27.19%
1
16.67%
Linus Torvalds
19
16.67%
2
33.33%
Marcel Holtmann
3
2.63%
2
33.33%
Total
114
100.00%
6
100.00%

/* ---- HCI TX task (outgoing data) ---- */

/* HCI Connection scheduler */


static struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type,
				     int *quote)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn *conn = NULL, *c;
	unsigned int num = 0, min = ~0;

	/* We don't have to lock device here. Connections are always
         * added and removed with TX task disabled. */

	rcu_read_lock();

	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type != type || skb_queue_empty(&c->data_q))
			continue;

		if (c->state != BT_CONNECTED && c->state != BT_CONFIG)
			continue;

		num++;

		if (c->sent < min) {
			min  = c->sent;
			conn = c;
		}

		if (hci_conn_num(hdev, type) == num)
			break;
	}

	rcu_read_unlock();

	if (conn) {
		int cnt, q;

		switch (conn->type) {
		case ACL_LINK:
			cnt = hdev->acl_cnt;
			break;
		case SCO_LINK:
		case ESCO_LINK:
			cnt = hdev->sco_cnt;
			break;
		case LE_LINK:
			cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
			break;
		default:
			cnt = 0;
			BT_ERR("Unknown link type");
		}

		q = cnt / num;
		*quote = q ? q : 1;
	} else
		*quote = 0;

	BT_DBG("conn %p quote %d", conn, *quote);
	return conn;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
93
38.91%
2
16.67%
Ville Tervo
56
23.43%
1
8.33%
Linus Torvalds
38
15.90%
2
16.67%
Luiz Augusto von Dentz
18
7.53%
2
16.67%
Marcel Holtmann
15
6.28%
1
8.33%
Maxim Krasnyansky
10
4.18%
1
8.33%
Gustavo Fernando Padovan
7
2.93%
1
8.33%
Hideaki Yoshifuji / 吉藤英明
1
0.42%
1
8.33%
Mikel Astiz
1
0.42%
1
8.33%
Total
239
100.00%
12
100.00%



static void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn *c;

	BT_ERR("%s link tx timeout", hdev->name);

	rcu_read_lock();

	/* Kill stalled connections */
	list_for_each_entry_rcu(c, &h->list, list) {
		if (c->type == type && c->sent) {
			BT_ERR("%s killing stalled connection %pMR",
			       hdev->name, &c->dst);
			hci_disconnect(c, HCI_ERROR_REMOTE_USER_TERM);
		}
	}

	rcu_read_unlock();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maxim Krasnyansky
70
77.78%
1
12.50%
Gustavo Fernando Padovan
7
7.78%
1
12.50%
Ville Tervo
6
6.67%
1
12.50%
Luiz Augusto von Dentz
3
3.33%
1
12.50%
Andrei Emeltchenko
2
2.22%
2
25.00%
Andre Guedes
1
1.11%
1
12.50%
Maksim Krasnyanskiy
1
1.11%
1
12.50%
Total
90
100.00%
8
100.00%



static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
				      int *quote)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_chan *chan = NULL;
	unsigned int num = 0, min = ~0, cur_prio = 0;
	struct hci_conn *conn;
	int cnt, q, conn_num = 0;

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

	rcu_read_lock();

	list_for_each_entry_rcu(conn, &h->list, list) {
		struct hci_chan *tmp;

		if (conn->type != type)
			continue;

		if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG)
			continue;

		conn_num++;

		list_for_each_entry_rcu(tmp, &conn->chan_list, list) {
			struct sk_buff *skb;

			if (skb_queue_empty(&tmp->data_q))
				continue;

			skb = skb_peek(&tmp->data_q);
			if (skb->priority < cur_prio)
				continue;

			if (skb->priority > cur_prio) {
				num = 0;
				min = ~0;
				cur_prio = skb->priority;
			}

			num++;

			if (conn->sent < min) {
				min  = conn->sent;
				chan = tmp;
			}
		}

		if (hci_conn_num(hdev, type) == conn_num)
			break;
	}

	rcu_read_unlock();

	if (!chan)
		return NULL;

	switch (chan->conn->type) {
	case ACL_LINK:
		cnt = hdev->acl_cnt;
		break;
	case AMP_LINK:
		cnt = hdev->block_cnt;
		break;
	case SCO_LINK:
	case ESCO_LINK:
		cnt = hdev->sco_cnt;
		break;
	case LE_LINK:
		cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
		break;
	default:
		cnt = 0;
		BT_ERR("Unknown link type");
	}

	q = cnt / num;
	*quote = q ? q : 1;
	BT_DBG("chan %p quote %d", chan, *quote);
	return chan;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Luiz Augusto von Dentz
315
94.03%
1
16.67%
Andrei Emeltchenko
10
2.99%
1
16.67%
Gustavo Fernando Padovan
9
2.69%
3
50.00%
Mikel Astiz
1
0.30%
1
16.67%
Total
335
100.00%
6
100.00%



static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct hci_conn *conn;
	int num = 0;

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

	rcu_read_lock();

	list_for_each_entry_rcu(conn, &h->list, list) {
		struct hci_chan *chan;

		if (conn->type != type)
			continue;

		if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG)
			continue;

		num++;

		list_for_each_entry_rcu(chan, &conn->chan_list, list) {
			struct sk_buff *skb;

			if (chan->sent) {
				chan->sent = 0;
				continue;
			}

			if (skb_queue_empty(&chan->data_q))
				continue;

			skb = skb_peek(&chan->data_q);
			if (skb->priority >= HCI_PRIO_MAX - 1)
				continue;

			skb->priority = HCI_PRIO_MAX - 1;

			BT_DBG("chan %p skb %p promoted to %d", chan, skb,
			       skb->priority);
		}

		if (hci_conn_num(hdev, type) == num)
			break;
	}

	rcu_read_unlock();

}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Luiz Augusto von Dentz
177
95.16%
1
25.00%
Gustavo Fernando Padovan
9
4.84%
3
75.00%
Total
186
100.00%
4
100.00%



static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb)
{
	/* Calculate count of blocks used by this packet */
	return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
32
100.00%
1
100.00%
Total
32
100.00%
1
100.00%



static void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
{
	if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		/* ACL tx timeout must be longer than maximum
                 * link supervision timeout (40.9 seconds) */
		if (!cnt && time_after(jiffies, hdev->acl_last_tx +
				       HCI_ACL_TX_TIMEOUT))
			hci_link_tx_to(hdev, ACL_LINK);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
32
62.75%
2
28.57%
Maksim Krasnyanskiy
7
13.73%
1
14.29%
Marcel Holtmann
6
11.76%
2
28.57%
Linus Torvalds
3
5.88%
1
14.29%
Luiz Augusto von Dentz
3
5.88%
1
14.29%
Total
51
100.00%
7
100.00%



static void hci_sched_acl_pkt(struct hci_dev *hdev)
{
	unsigned int cnt = hdev->acl_cnt;
	struct hci_chan *chan;
	struct sk_buff *skb;
	int quote;

	__check_timeout(hdev, cnt);

	while (hdev->acl_cnt &&
	       (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
		u32 priority = (skb_peek(&chan->data_q))->priority;
		while (quote-- && (skb = skb_peek(&chan->data_q))) {
			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
			       skb->len, skb->priority);

			/* Stop if priority has changed */
			if (skb->priority < priority)
				break;

			skb = skb_dequeue(&chan->data_q);

			hci_conn_enter_active_mode(chan->conn,
						   bt_cb(skb)->force_active);

			hci_send_frame(hdev, skb);
			hdev->acl_last_tx = jiffies;

			hdev->acl_cnt--;
			chan->sent++;
			chan->conn->sent++;
		}
	}

	if (cnt != hdev->acl_cnt)
		hci_prio_recalculate(hdev, ACL_LINK);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
183
95.81%
2
50.00%
Luiz Augusto von Dentz
6
3.14%
1
25.00%
Marcel Holtmann
2
1.05%
1
25.00%
Total
191
100.00%
4
100.00%



static void hci_sched_acl_blk(struct hci_dev *hdev)
{
	unsigned int cnt = hdev->block_cnt;
	struct hci_chan *chan;
	struct sk_buff *skb;
	int quote;
	u8 type;

	__check_timeout(hdev, cnt);

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

	if (hdev->dev_type == HCI_AMP)
		type = AMP_LINK;
	else
		type = ACL_LINK;

	while (hdev->block_cnt > 0 &&
	       (chan = hci_chan_sent(hdev, type, &quote))) {
		u32 priority = (skb_peek(&chan->data_q))->priority;
		while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
			int blocks;

			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
			       skb->len, skb->priority);

			/* Stop if priority has changed */
			if (skb->priority < priority)
				break;

			skb = skb_dequeue(&chan->data_q);

			blocks = __get_blocks(hdev, skb);
			if (blocks > hdev->block_cnt)
				return;

			hci_conn_enter_active_mode(chan->conn,
						   bt_cb(skb)->force_active);

			hci_send_frame(hdev, skb);
			hdev->acl_last_tx = jiffies;

			hdev->block_cnt -= blocks;
			quote -= blocks;

			chan->sent += blocks;
			chan->conn->sent += blocks;
		}
	}

	if (cnt != hdev->block_cnt)
		hci_prio_recalculate(hdev, type);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
102
40.64%
3
21.43%
Luiz Augusto von Dentz
69
27.49%
3
21.43%
Maksim Krasnyanskiy
39
15.54%
1
7.14%
Linus Torvalds
23
9.16%
2
14.29%
Jaikumar Ganesh
7
2.79%
1
7.14%
Marcel Holtmann
7
2.79%
2
14.29%
Maxim Krasnyansky
3
1.20%
1
7.14%
Ville Tervo
1
0.40%
1
7.14%
Total
251
100.00%
14
100.00%



static void hci_sched_acl(struct hci_dev *hdev)
{
	BT_DBG("%s", hdev->name);

	/* No ACL link over BR/EDR controller */
	if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_PRIMARY)
		return;

	/* No AMP link over AMP controller */
	if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP)
		return;

	switch (hdev->flow_ctl_mode) {
	case HCI_FLOW_CTL_MODE_PACKET_BASED:
		hci_sched_acl_pkt(hdev);
		break;

	case HCI_FLOW_CTL_MODE_BLOCK_BASED:
		hci_sched_acl_blk(hdev);
		break;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrei Emeltchenko
81
98.78%
2
66.67%
Marcel Holtmann
1
1.22%
1
33.33%
Total
82
100.00%
3
100.00%

/* Schedule SCO */


static void hci_sched_sco(struct hci_dev *hdev)
{
	struct hci_conn *conn;
	struct sk_buff *skb;
	int quote;

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

	if (!hci_conn_num(hdev, SCO_LINK))
		return;

	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
			BT_DBG("skb %p len %d", skb, skb->len);
			hci_send_frame(hdev, skb);

			conn->sent++;
			if (conn->sent == ~0)
				conn->sent = 0;
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Maksim Krasnyanskiy
64
52.03%
1
16.67%
Maxim Krasnyansky
24
19.51%
1
16.67%
Linus Torvalds
22
17.89%
2
33.33%
Luiz Augusto von Dentz
11
8.94%
1
16.67%
Marcel Holtmann
2
1.63%
1
16.67%
Total
123
100.00%
6
100.00%



static void hci_sched_esco(struct hci_dev *hdev)
{
	struct hci_conn *conn;
	struct sk_buff *skb;
	int quote;

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

	if (!hci_conn_num(hdev, ESCO_LINK))
		return;

	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK,
						     &quote))) {
		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
			BT_DBG("skb %p len %d", skb, skb->len);
			hci_send_frame(hdev, skb);

			conn->sent++;
			if (conn->sent == ~0)
				conn->sent = 0;
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Marcel Holtmann
112
91.06%
2
66.67%
Luiz Augusto von Dentz
11
8.94%
1
33.33%
Total
123
100.00%
3
100.00%



static void hci_sched_le(struct hci_dev *hdev)
{
	struct hci_chan *chan;
	struct sk_buff *skb;
	int quote, cnt, tmp;

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

	if (!hci_conn_num(hdev, LE_LINK))
		return;

	if (!hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
		/* LE tx timeout must be longer than maximum
                 * link supervision timeout (40.9 seconds) */
		if (!hdev->le_cnt && hdev->le_pkts &&
		    time_after(jiffies, hdev->le_last_tx + HZ * 45))
			hci_link_tx_to(hdev, LE_LINK);
	}

	cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt;
	tmp = cnt;
	while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
		u32 priority = (skb_peek(&chan->data_q))->priority;
		while (quote-- && (skb = skb_peek(&chan->data_q))) {
			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
			       skb->len, skb->priority);

			/* Stop if priority has changed */
			if (skb->priority < priority)
				break;

			skb = skb_dequeue(&chan->data_q);

			hci_send_frame(hdev, skb);
			hdev->le_last_tx = jiffies;

			cnt--;
			chan->sent++;
			chan->conn->sent++;
		}
	}

	if (hdev->le_pkts)
		hdev->le_cnt = cnt;
	else
		hdev->acl_cnt = cnt;

	if (cnt != tmp)
		hci_prio_recalculate(hdev, LE_LINK);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ville Tervo
171
65.52%
2
25.00%
Luiz Augusto von Dentz
85
32.57%
4
50.00%
Marcel Holtmann
5
1.92%
2
25.00%
Total
261
100.00%
8
100.00%



static void hci_tx_work(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work);
	struct sk_buff *skb;

	BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
	       hdev->sco_cnt, hdev->le_cnt);

	if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
		/* Schedule queues and send stuff to HCI driver */
		hci_sched_acl(hdev);
		hci_sched_sco(hdev);
		hci_sched_esco(hdev);
		hci_sched_le(hdev);
	}

	/* Send next queued raw (unknown type) packet */
	while ((skb = skb_dequeue(&hdev->raw_q)))
		hci_send_frame(hdev, skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
88
82.24%
2
33.33%
Maksim Krasnyanskiy
9
8.41%
1
16.67%
Gustavo Fernando Padovan
6
5.61%
1
16.67%
Marcel Holtmann
3
2.80%
1
16.67%
Linus Torvalds
1
0.93%
1
16.67%
Total
107
100.00%
6
100.00%

/* ----- HCI RX task (incoming data processing) ----- */

/* ACL data packet */


static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_acl_hdr *hdr = (void *) skb->data;
	struct hci_conn *conn;
	__u16 handle, flags;

	skb_pull(skb, HCI_ACL_HDR_SIZE);

	handle = __le16_to_cpu(hdr->handle);
	flags  = hci_flags(handle);
	handle = hci_handle(handle);

	BT_DBG("%s len %d handle 0x%4.4x flags 0x%4.4x", hdev->name, skb->len,
	       handle, flags);

	hdev->stat.acl_rx++;

	hci_dev_lock(hdev);
	conn = hci_conn_hash_lookup_handle(hdev, handle);
	hci_dev_unlock(hdev);

	if (conn) {
		hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);

		/* Send to upper protocol */
		l2cap_recv_acldata(conn, skb, flags);
		return;
	} else {
		BT_ERR("%s ACL packet for unknown connection handle %d",
		       hdev->name, handle);
	}

	kfree_skb(skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
153
98.71%
4
66.67%
Linus Torvalds
1
0.65%
1
16.67%
Maksim Krasnyanskiy
1
0.65%
1
16.67%
Total
155
100.00%
6
100.00%

/* SCO data packet */


static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct hci_sco_hdr *hdr = (void *) skb->data;
	struct hci_conn *conn;
	__u16 handle;

	skb_pull(skb, HCI_SCO_HDR_SIZE);

	handle = __le16_to_cpu(hdr->handle);

	BT_DBG("%s len %d handle 0x%4.4x", hdev->name, skb->len, handle);

	hdev->stat.sco_rx++;

	hci_dev_lock(hdev);
	conn = hci_conn_hash_lookup_handle(hdev, handle);
	hci_dev_unlock(hdev);

	if (conn) {
		/* Send to upper protocol */
		sco_recv_scodata(conn, skb);
		return;
	} else {
		BT_ERR("%s SCO packet for unknown connection handle %d",
		       hdev->name, handle);
	}

	kfree_skb(skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
76
59.38%
1
12.50%
Linus Torvalds
30
23.44%
2
25.00%
Marcel Holtmann
12
9.38%
4
50.00%
Maksim Krasnyanskiy
10
7.81%
1
12.50%
Total
128
100.00%
8
100.00%



static bool hci_req_is_complete(struct hci_dev *hdev)
{
	struct sk_buff *skb;

	skb = skb_peek(&hdev->cmd_q);
	if (!skb)
		return true;

	return (bt_cb(skb)->hci.req_flags & HCI_REQ_START);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
36
75.00%
3
37.50%
Maksim Krasnyanskiy
5
10.42%
1
12.50%
Marcel Holtmann
4
8.33%
2
25.00%
Linus Torvalds
3
6.25%
2
25.00%
Total
48
100.00%
8
100.00%



static void hci_resend_last(struct hci_dev *hdev)
{
	struct hci_command_hdr *sent;
	struct sk_buff *skb;
	u16 opcode;

	if (!hdev->sent_cmd)
		return;

	sent = (void *) hdev->sent_cmd->data;
	opcode = __le16_to_cpu(sent->opcode);
	if (opcode == HCI_OP_RESET)
		return;

	skb = skb_clone(hdev->sent_cmd, GFP_KERNEL);
	if (!skb)
		return;

	skb_queue_head(&hdev->cmd_q, skb);
	queue_work(hdev->workqueue, &hdev->cmd_work);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
83
83.84%
2
40.00%
Linus Torvalds
13
13.13%
2
40.00%
Marcel Holtmann
3
3.03%
1
20.00%
Total
99
100.00%
5
100.00%



void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
			  hci_req_complete_t *req_complete,
			  hci_req_complete_skb_t *req_complete_skb)
{
	struct sk_buff *skb;
	unsigned long flags;

	BT_DBG("opcode 0x%04x status 0x%02x", opcode, status);

	/* If the completed command doesn't match the last one that was
         * sent we need to do special handling of it.
         */
	if (!hci_sent_cmd_data(hdev, opcode)) {
		/* Some CSR based controllers generate a spontaneous
                 * reset complete event during init and any pending
                 * command will never be completed. In such a case we
                 * need to resend whatever was the last sent
                 * command.
                 */
		if (test_bit(HCI_INIT, &hdev->flags) && opcode == HCI_OP_RESET)
			hci_resend_last(hdev);

		return;
	}

	/* If the command succeeded and there's still more commands in
         * this request the request is not yet complete.
         */
	if (!status && !hci_req_is_complete(hdev))
		return;

	/* If this was the last command in a request the complete
         * callback would be found in hdev->sent_cmd instead of the
         * command queue (hdev->cmd_q).
         */
	if (bt_cb(hdev->sent_cmd)->hci.req_flags & HCI_REQ_SKB) {
		*req_complete_skb = bt_cb(hdev->sent_cmd)->hci.req_complete_skb;
		return;
	}

	if (bt_cb(hdev->sent_cmd)->hci.req_complete) {
		*req_complete = bt_cb(hdev->sent_cmd)->hci.req_complete;
		return;
	}

	/* Remove all pending commands belonging to this request */
	spin_lock_irqsave(&hdev->cmd_q.lock, flags);
	while ((skb = __skb_dequeue(&hdev->cmd_q))) {
		if (bt_cb(skb)->hci.req_flags & HCI_REQ_START) {
			__skb_queue_head(&hdev->cmd_q, skb);
			break;
		}

		if (bt_cb(skb)->hci.req_flags & HCI_REQ_SKB)
			*req_complete_skb = bt_cb(skb)->hci.req_complete_skb;
		else
			*req_complete = bt_cb(skb)->hci.req_complete;
		kfree_skb(skb);
	}
	spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
151
57.20%
4
22.22%
Linus Torvalds
61
23.11%
2
11.11%
Douglas Anderson
18
6.82%
1
5.56%
Marcel Holtmann
16
6.06%
6
33.33%
Maksim Krasnyanskiy
12
4.55%
1
5.56%
Andre Guedes
3
1.14%
1
5.56%
Andrei Emeltchenko
2
0.76%
2
11.11%
Szymon Janc
1
0.38%
1
5.56%
Total
264
100.00%
18
100.00%



static void hci_rx_work(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work);
	struct sk_buff *skb;

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

	while ((skb = skb_dequeue(&hdev->rx_q))) {
		/* Send copy to monitor */
		hci_send_to_monitor(hdev, skb);

		if (atomic_read(&hdev->promisc)) {
			/* Send copy to the sockets */
			hci_send_to_sock(hdev, skb);
		}

		if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) {
			kfree_skb(skb);
			continue;
		}

		if (test_bit(HCI_INIT, &hdev->flags)) {
			/* Don't process data packets in this states. */
			switch (hci_skb_pkt_type(skb)) {
			case HCI_ACLDATA_PKT:
			case HCI_SCODATA_PKT:
				kfree_skb(skb);
				continue;
			}
		}

		/* Process frame */
		switch (hci_skb_pkt_type(skb)) {
		case HCI_EVENT_PKT:
			BT_DBG("%s Event packet", hdev->name);
			hci_event_packet(hdev, skb);
			break;

		case HCI_ACLDATA_PKT:
			BT_DBG("%s ACL data packet", hdev->name);
			hci_acldata_packet(hdev, skb);
			break;

		case HCI_SCODATA_PKT:
			BT_DBG("%s SCO data packet", hdev->name);
			hci_scodata_packet(hdev, skb);
			break;

		default:
			kfree_skb(skb);
			break;
		}
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
133
62.15%
1
7.14%
Marcel Holtmann
34
15.89%
4
28.57%
Linus Torvalds
25
11.68%
2
14.29%
Andre Guedes
10
4.67%
1
7.14%
Andrei Emeltchenko
5
2.34%
2
14.29%
Szymon Janc
3
1.40%
1
7.14%
Ville Tervo
2
0.93%
1
7.14%
Maksim Krasnyanskiy
1
0.47%
1
7.14%
Gustavo Fernando Padovan
1
0.47%
1
7.14%
Total
214
100.00%
14
100.00%



static void hci_cmd_work(struct work_struct *work)
{
	struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_work);
	struct sk_buff *skb;

	BT_DBG("%s cmd_cnt %d cmd queued %d", hdev->name,
	       atomic_read(&hdev->cmd_cnt), skb_queue_len(&hdev->cmd_q));

	/* Send queued commands */
	if (atomic_read(&hdev->cmd_cnt)) {
		skb = skb_dequeue(&hdev->cmd_q);
		if (!skb)
			return;

		kfree_skb(hdev->sent_cmd);

		hdev->sent_cmd = skb_clone(skb, GFP_KERNEL);
		if (hdev->sent_cmd) {
			atomic_dec(&hdev->cmd_cnt);
			hci_send_frame(hdev, skb);
			if (test_bit(HCI_RESET, &hdev->flags))
				cancel_delayed_work(&hdev->cmd_timer);
			else
				schedule_delayed_work(&hdev->cmd_timer,
						      HCI_CMD_TIMEOUT);
		} else {
			skb_queue_head(&hdev->cmd_q, skb);
			queue_work(hdev->workqueue, &hdev->cmd_work);
		}
	}
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
118
64.84%
1
25.00%
Andre Guedes
52
28.57%
1
25.00%
Marcel Holtmann
12
6.59%
2
50.00%
Total
182
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Johan Hedberg
6372
34.49%
132
31.43%
Marcel Holtmann
4970
26.90%
154
36.67%
Maksim Krasnyanskiy
1463
7.92%
7
1.67%
Linus Torvalds
1459
7.90%
3
0.71%
Luiz Augusto von Dentz
716
3.88%
5
1.19%
Andrei Emeltchenko
698
3.78%
23
5.48%
Florian Grandel
578
3.13%
3
0.71%
Andre Guedes
554
3.00%
26
6.19%
Vinicius Costa Gomes
331
1.79%
6
1.43%
Ville Tervo
287
1.55%
3
0.71%
Szymon Janc
178
0.96%
3
0.71%
David Herrmann
165
0.89%
6
1.43%
Gustavo Fernando Padovan
141
0.76%
16
3.81%
Maxim Krasnyansky
111
0.60%
1
0.24%
Loic Poulain
102
0.55%
2
0.48%
Sasha Levin
75
0.41%
1
0.24%
Antti Julku
35
0.19%
2
0.48%
Tedd Ho-Jeong An
23
0.12%
1
0.24%
Jakub Pawlowski
22
0.12%
2
0.48%
Heiner Kallweit
22
0.12%
1
0.24%
Johan Hovold
20
0.11%
1
0.24%
Al Viro
20
0.11%
1
0.24%
Douglas Anderson
18
0.10%
1
0.24%
Lukasz Rymanowski
11
0.06%
1
0.24%
Kees Cook
10
0.05%
1
0.24%
Vishal Agarwal
10
0.05%
1
0.24%
Geliang Tang
10
0.05%
1
0.24%
Jaganath Kanakkassery
10
0.05%
1
0.24%
Gabriele Mazzotta
10
0.05%
1
0.24%
Arnaldo Carvalho de Melo
10
0.05%
2
0.48%
Randy Dunlap
9
0.05%
1
0.24%
Wei-Ning Huang
8
0.04%
1
0.24%
Jaikumar Ganesh
7
0.04%
1
0.24%
Jiri Slaby
5
0.03%
1
0.24%
Dave Young
4
0.02%
1
0.24%
Hideaki Yoshifuji / 吉藤英明
3
0.02%
2
0.48%
Mikel Astiz
2
0.01%
1
0.24%
Wesley Kuo
2
0.01%
1
0.24%
Joe Perches
1
0.01%
1
0.24%
Jorrit Schippers
1
0.01%
1
0.24%
Vegard Nossum
1
0.01%
1
0.24%
Total
18474
100.00%
420
100.00%
Directory: net/bluetooth

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