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mgmt.c
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mgmt.c
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/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2010 Nokia Corporation
Copyright (C) 2011-2012 Intel Corporation
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 Management interface */
#include <linux/module.h>
#include <asm/unaligned.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/hci_sock.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/mgmt.h>
#include "hci_request.h"
#include "smp.h"
#include "mgmt_util.h"
#define MGMT_VERSION 1
#define MGMT_REVISION 9
static const u16 mgmt_commands[] = {
MGMT_OP_READ_INDEX_LIST,
MGMT_OP_READ_INFO,
MGMT_OP_SET_POWERED,
MGMT_OP_SET_DISCOVERABLE,
MGMT_OP_SET_CONNECTABLE,
MGMT_OP_SET_FAST_CONNECTABLE,
MGMT_OP_SET_BONDABLE,
MGMT_OP_SET_LINK_SECURITY,
MGMT_OP_SET_SSP,
MGMT_OP_SET_HS,
MGMT_OP_SET_LE,
MGMT_OP_SET_DEV_CLASS,
MGMT_OP_SET_LOCAL_NAME,
MGMT_OP_ADD_UUID,
MGMT_OP_REMOVE_UUID,
MGMT_OP_LOAD_LINK_KEYS,
MGMT_OP_LOAD_LONG_TERM_KEYS,
MGMT_OP_DISCONNECT,
MGMT_OP_GET_CONNECTIONS,
MGMT_OP_PIN_CODE_REPLY,
MGMT_OP_PIN_CODE_NEG_REPLY,
MGMT_OP_SET_IO_CAPABILITY,
MGMT_OP_PAIR_DEVICE,
MGMT_OP_CANCEL_PAIR_DEVICE,
MGMT_OP_UNPAIR_DEVICE,
MGMT_OP_USER_CONFIRM_REPLY,
MGMT_OP_USER_CONFIRM_NEG_REPLY,
MGMT_OP_USER_PASSKEY_REPLY,
MGMT_OP_USER_PASSKEY_NEG_REPLY,
MGMT_OP_READ_LOCAL_OOB_DATA,
MGMT_OP_ADD_REMOTE_OOB_DATA,
MGMT_OP_REMOVE_REMOTE_OOB_DATA,
MGMT_OP_START_DISCOVERY,
MGMT_OP_STOP_DISCOVERY,
MGMT_OP_CONFIRM_NAME,
MGMT_OP_BLOCK_DEVICE,
MGMT_OP_UNBLOCK_DEVICE,
MGMT_OP_SET_DEVICE_ID,
MGMT_OP_SET_ADVERTISING,
MGMT_OP_SET_BREDR,
MGMT_OP_SET_STATIC_ADDRESS,
MGMT_OP_SET_SCAN_PARAMS,
MGMT_OP_SET_SECURE_CONN,
MGMT_OP_SET_DEBUG_KEYS,
MGMT_OP_SET_PRIVACY,
MGMT_OP_LOAD_IRKS,
MGMT_OP_GET_CONN_INFO,
MGMT_OP_GET_CLOCK_INFO,
MGMT_OP_ADD_DEVICE,
MGMT_OP_REMOVE_DEVICE,
MGMT_OP_LOAD_CONN_PARAM,
MGMT_OP_READ_UNCONF_INDEX_LIST,
MGMT_OP_READ_CONFIG_INFO,
MGMT_OP_SET_EXTERNAL_CONFIG,
MGMT_OP_SET_PUBLIC_ADDRESS,
MGMT_OP_START_SERVICE_DISCOVERY,
MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
MGMT_OP_READ_EXT_INDEX_LIST,
MGMT_OP_READ_ADV_FEATURES,
MGMT_OP_ADD_ADVERTISING,
MGMT_OP_REMOVE_ADVERTISING,
};
static const u16 mgmt_events[] = {
MGMT_EV_CONTROLLER_ERROR,
MGMT_EV_INDEX_ADDED,
MGMT_EV_INDEX_REMOVED,
MGMT_EV_NEW_SETTINGS,
MGMT_EV_CLASS_OF_DEV_CHANGED,
MGMT_EV_LOCAL_NAME_CHANGED,
MGMT_EV_NEW_LINK_KEY,
MGMT_EV_NEW_LONG_TERM_KEY,
MGMT_EV_DEVICE_CONNECTED,
MGMT_EV_DEVICE_DISCONNECTED,
MGMT_EV_CONNECT_FAILED,
MGMT_EV_PIN_CODE_REQUEST,
MGMT_EV_USER_CONFIRM_REQUEST,
MGMT_EV_USER_PASSKEY_REQUEST,
MGMT_EV_AUTH_FAILED,
MGMT_EV_DEVICE_FOUND,
MGMT_EV_DISCOVERING,
MGMT_EV_DEVICE_BLOCKED,
MGMT_EV_DEVICE_UNBLOCKED,
MGMT_EV_DEVICE_UNPAIRED,
MGMT_EV_PASSKEY_NOTIFY,
MGMT_EV_NEW_IRK,
MGMT_EV_NEW_CSRK,
MGMT_EV_DEVICE_ADDED,
MGMT_EV_DEVICE_REMOVED,
MGMT_EV_NEW_CONN_PARAM,
MGMT_EV_UNCONF_INDEX_ADDED,
MGMT_EV_UNCONF_INDEX_REMOVED,
MGMT_EV_NEW_CONFIG_OPTIONS,
MGMT_EV_EXT_INDEX_ADDED,
MGMT_EV_EXT_INDEX_REMOVED,
MGMT_EV_LOCAL_OOB_DATA_UPDATED,
MGMT_EV_ADVERTISING_ADDED,
MGMT_EV_ADVERTISING_REMOVED,
};
static const u16 mgmt_untrusted_commands[] = {
MGMT_OP_READ_INDEX_LIST,
MGMT_OP_READ_INFO,
MGMT_OP_READ_UNCONF_INDEX_LIST,
MGMT_OP_READ_CONFIG_INFO,
MGMT_OP_READ_EXT_INDEX_LIST,
};
static const u16 mgmt_untrusted_events[] = {
MGMT_EV_INDEX_ADDED,
MGMT_EV_INDEX_REMOVED,
MGMT_EV_NEW_SETTINGS,
MGMT_EV_CLASS_OF_DEV_CHANGED,
MGMT_EV_LOCAL_NAME_CHANGED,
MGMT_EV_UNCONF_INDEX_ADDED,
MGMT_EV_UNCONF_INDEX_REMOVED,
MGMT_EV_NEW_CONFIG_OPTIONS,
MGMT_EV_EXT_INDEX_ADDED,
MGMT_EV_EXT_INDEX_REMOVED,
};
#define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
"\x00\x00\x00\x00\x00\x00\x00\x00"
/* HCI to MGMT error code conversion table */
static u8 mgmt_status_table[] = {
MGMT_STATUS_SUCCESS,
MGMT_STATUS_UNKNOWN_COMMAND, /* Unknown Command */
MGMT_STATUS_NOT_CONNECTED, /* No Connection */
MGMT_STATUS_FAILED, /* Hardware Failure */
MGMT_STATUS_CONNECT_FAILED, /* Page Timeout */
MGMT_STATUS_AUTH_FAILED, /* Authentication Failed */
MGMT_STATUS_AUTH_FAILED, /* PIN or Key Missing */
MGMT_STATUS_NO_RESOURCES, /* Memory Full */
MGMT_STATUS_TIMEOUT, /* Connection Timeout */
MGMT_STATUS_NO_RESOURCES, /* Max Number of Connections */
MGMT_STATUS_NO_RESOURCES, /* Max Number of SCO Connections */
MGMT_STATUS_ALREADY_CONNECTED, /* ACL Connection Exists */
MGMT_STATUS_BUSY, /* Command Disallowed */
MGMT_STATUS_NO_RESOURCES, /* Rejected Limited Resources */
MGMT_STATUS_REJECTED, /* Rejected Security */
MGMT_STATUS_REJECTED, /* Rejected Personal */
MGMT_STATUS_TIMEOUT, /* Host Timeout */
MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Feature */
MGMT_STATUS_INVALID_PARAMS, /* Invalid Parameters */
MGMT_STATUS_DISCONNECTED, /* OE User Ended Connection */
MGMT_STATUS_NO_RESOURCES, /* OE Low Resources */
MGMT_STATUS_DISCONNECTED, /* OE Power Off */
MGMT_STATUS_DISCONNECTED, /* Connection Terminated */
MGMT_STATUS_BUSY, /* Repeated Attempts */
MGMT_STATUS_REJECTED, /* Pairing Not Allowed */
MGMT_STATUS_FAILED, /* Unknown LMP PDU */
MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Remote Feature */
MGMT_STATUS_REJECTED, /* SCO Offset Rejected */
MGMT_STATUS_REJECTED, /* SCO Interval Rejected */
MGMT_STATUS_REJECTED, /* Air Mode Rejected */
MGMT_STATUS_INVALID_PARAMS, /* Invalid LMP Parameters */
MGMT_STATUS_FAILED, /* Unspecified Error */
MGMT_STATUS_NOT_SUPPORTED, /* Unsupported LMP Parameter Value */
MGMT_STATUS_FAILED, /* Role Change Not Allowed */
MGMT_STATUS_TIMEOUT, /* LMP Response Timeout */
MGMT_STATUS_FAILED, /* LMP Error Transaction Collision */
MGMT_STATUS_FAILED, /* LMP PDU Not Allowed */
MGMT_STATUS_REJECTED, /* Encryption Mode Not Accepted */
MGMT_STATUS_FAILED, /* Unit Link Key Used */
MGMT_STATUS_NOT_SUPPORTED, /* QoS Not Supported */
MGMT_STATUS_TIMEOUT, /* Instant Passed */
MGMT_STATUS_NOT_SUPPORTED, /* Pairing Not Supported */
MGMT_STATUS_FAILED, /* Transaction Collision */
MGMT_STATUS_INVALID_PARAMS, /* Unacceptable Parameter */
MGMT_STATUS_REJECTED, /* QoS Rejected */
MGMT_STATUS_NOT_SUPPORTED, /* Classification Not Supported */
MGMT_STATUS_REJECTED, /* Insufficient Security */
MGMT_STATUS_INVALID_PARAMS, /* Parameter Out Of Range */
MGMT_STATUS_BUSY, /* Role Switch Pending */
MGMT_STATUS_FAILED, /* Slot Violation */
MGMT_STATUS_FAILED, /* Role Switch Failed */
MGMT_STATUS_INVALID_PARAMS, /* EIR Too Large */
MGMT_STATUS_NOT_SUPPORTED, /* Simple Pairing Not Supported */
MGMT_STATUS_BUSY, /* Host Busy Pairing */
MGMT_STATUS_REJECTED, /* Rejected, No Suitable Channel */
MGMT_STATUS_BUSY, /* Controller Busy */
MGMT_STATUS_INVALID_PARAMS, /* Unsuitable Connection Interval */
MGMT_STATUS_TIMEOUT, /* Directed Advertising Timeout */
MGMT_STATUS_AUTH_FAILED, /* Terminated Due to MIC Failure */
MGMT_STATUS_CONNECT_FAILED, /* Connection Establishment Failed */
MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */
};
static u8 mgmt_status(u8 hci_status)
{
if (hci_status < ARRAY_SIZE(mgmt_status_table))
return mgmt_status_table[hci_status];
return MGMT_STATUS_FAILED;
}
static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data,
u16 len, int flag)
{
return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
flag, NULL);
}
static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,
u16 len, int flag, struct sock *skip_sk)
{
return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
flag, skip_sk);
}
static int mgmt_generic_event(u16 event, struct hci_dev *hdev, void *data,
u16 len, struct sock *skip_sk)
{
return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
HCI_MGMT_GENERIC_EVENTS, skip_sk);
}
static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
struct sock *skip_sk)
{
return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
HCI_SOCK_TRUSTED, skip_sk);
}
static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
u16 data_len)
{
struct mgmt_rp_read_version rp;
BT_DBG("sock %p", sk);
rp.version = MGMT_VERSION;
rp.revision = cpu_to_le16(MGMT_REVISION);
return mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0,
&rp, sizeof(rp));
}
static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
u16 data_len)
{
struct mgmt_rp_read_commands *rp;
u16 num_commands, num_events;
size_t rp_size;
int i, err;
BT_DBG("sock %p", sk);
if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
num_commands = ARRAY_SIZE(mgmt_commands);
num_events = ARRAY_SIZE(mgmt_events);
} else {
num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
num_events = ARRAY_SIZE(mgmt_untrusted_events);
}
rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
rp = kmalloc(rp_size, GFP_KERNEL);
if (!rp)
return -ENOMEM;
rp->num_commands = cpu_to_le16(num_commands);
rp->num_events = cpu_to_le16(num_events);
if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
__le16 *opcode = rp->opcodes;
for (i = 0; i < num_commands; i++, opcode++)
put_unaligned_le16(mgmt_commands[i], opcode);
for (i = 0; i < num_events; i++, opcode++)
put_unaligned_le16(mgmt_events[i], opcode);
} else {
__le16 *opcode = rp->opcodes;
for (i = 0; i < num_commands; i++, opcode++)
put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
for (i = 0; i < num_events; i++, opcode++)
put_unaligned_le16(mgmt_untrusted_events[i], opcode);
}
err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
rp, rp_size);
kfree(rp);
return err;
}
static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
u16 data_len)
{
struct mgmt_rp_read_index_list *rp;
struct hci_dev *d;
size_t rp_len;
u16 count;
int err;
BT_DBG("sock %p", sk);
read_lock(&hci_dev_list_lock);
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (d->dev_type == HCI_BREDR &&
!hci_dev_test_flag(d, HCI_UNCONFIGURED))
count++;
}
rp_len = sizeof(*rp) + (2 * count);
rp = kmalloc(rp_len, GFP_ATOMIC);
if (!rp) {
read_unlock(&hci_dev_list_lock);
return -ENOMEM;
}
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (hci_dev_test_flag(d, HCI_SETUP) ||
hci_dev_test_flag(d, HCI_CONFIG) ||
hci_dev_test_flag(d, HCI_USER_CHANNEL))
continue;
/* Devices marked as raw-only are neither configured
* nor unconfigured controllers.
*/
if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
continue;
if (d->dev_type == HCI_BREDR &&
!hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
rp->index[count++] = cpu_to_le16(d->id);
BT_DBG("Added hci%u", d->id);
}
}
rp->num_controllers = cpu_to_le16(count);
rp_len = sizeof(*rp) + (2 * count);
read_unlock(&hci_dev_list_lock);
err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST,
0, rp, rp_len);
kfree(rp);
return err;
}
static int read_unconf_index_list(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_rp_read_unconf_index_list *rp;
struct hci_dev *d;
size_t rp_len;
u16 count;
int err;
BT_DBG("sock %p", sk);
read_lock(&hci_dev_list_lock);
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (d->dev_type == HCI_BREDR &&
hci_dev_test_flag(d, HCI_UNCONFIGURED))
count++;
}
rp_len = sizeof(*rp) + (2 * count);
rp = kmalloc(rp_len, GFP_ATOMIC);
if (!rp) {
read_unlock(&hci_dev_list_lock);
return -ENOMEM;
}
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (hci_dev_test_flag(d, HCI_SETUP) ||
hci_dev_test_flag(d, HCI_CONFIG) ||
hci_dev_test_flag(d, HCI_USER_CHANNEL))
continue;
/* Devices marked as raw-only are neither configured
* nor unconfigured controllers.
*/
if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
continue;
if (d->dev_type == HCI_BREDR &&
hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
rp->index[count++] = cpu_to_le16(d->id);
BT_DBG("Added hci%u", d->id);
}
}
rp->num_controllers = cpu_to_le16(count);
rp_len = sizeof(*rp) + (2 * count);
read_unlock(&hci_dev_list_lock);
err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
MGMT_OP_READ_UNCONF_INDEX_LIST, 0, rp, rp_len);
kfree(rp);
return err;
}
static int read_ext_index_list(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_rp_read_ext_index_list *rp;
struct hci_dev *d;
size_t rp_len;
u16 count;
int err;
BT_DBG("sock %p", sk);
read_lock(&hci_dev_list_lock);
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (d->dev_type == HCI_BREDR || d->dev_type == HCI_AMP)
count++;
}
rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
rp = kmalloc(rp_len, GFP_ATOMIC);
if (!rp) {
read_unlock(&hci_dev_list_lock);
return -ENOMEM;
}
count = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (hci_dev_test_flag(d, HCI_SETUP) ||
hci_dev_test_flag(d, HCI_CONFIG) ||
hci_dev_test_flag(d, HCI_USER_CHANNEL))
continue;
/* Devices marked as raw-only are neither configured
* nor unconfigured controllers.
*/
if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
continue;
if (d->dev_type == HCI_BREDR) {
if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
rp->entry[count].type = 0x01;
else
rp->entry[count].type = 0x00;
} else if (d->dev_type == HCI_AMP) {
rp->entry[count].type = 0x02;
} else {
continue;
}
rp->entry[count].bus = d->bus;
rp->entry[count++].index = cpu_to_le16(d->id);
BT_DBG("Added hci%u", d->id);
}
rp->num_controllers = cpu_to_le16(count);
rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
read_unlock(&hci_dev_list_lock);
/* If this command is called at least once, then all the
* default index and unconfigured index events are disabled
* and from now on only extended index events are used.
*/
hci_sock_set_flag(sk, HCI_MGMT_EXT_INDEX_EVENTS);
hci_sock_clear_flag(sk, HCI_MGMT_INDEX_EVENTS);
hci_sock_clear_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
MGMT_OP_READ_EXT_INDEX_LIST, 0, rp, rp_len);
kfree(rp);
return err;
}
static bool is_configured(struct hci_dev *hdev)
{
if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
!hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
return false;
if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
!bacmp(&hdev->public_addr, BDADDR_ANY))
return false;
return true;
}
static __le32 get_missing_options(struct hci_dev *hdev)
{
u32 options = 0;
if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
!hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
options |= MGMT_OPTION_EXTERNAL_CONFIG;
if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
!bacmp(&hdev->public_addr, BDADDR_ANY))
options |= MGMT_OPTION_PUBLIC_ADDRESS;
return cpu_to_le32(options);
}
static int new_options(struct hci_dev *hdev, struct sock *skip)
{
__le32 options = get_missing_options(hdev);
return mgmt_generic_event(MGMT_EV_NEW_CONFIG_OPTIONS, hdev, &options,
sizeof(options), skip);
}
static int send_options_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
{
__le32 options = get_missing_options(hdev);
return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &options,
sizeof(options));
}
static int read_config_info(struct sock *sk, struct hci_dev *hdev,
void *data, u16 data_len)
{
struct mgmt_rp_read_config_info rp;
u32 options = 0;
BT_DBG("sock %p %s", sk, hdev->name);
hci_dev_lock(hdev);
memset(&rp, 0, sizeof(rp));
rp.manufacturer = cpu_to_le16(hdev->manufacturer);
if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
options |= MGMT_OPTION_EXTERNAL_CONFIG;
if (hdev->set_bdaddr)
options |= MGMT_OPTION_PUBLIC_ADDRESS;
rp.supported_options = cpu_to_le32(options);
rp.missing_options = get_missing_options(hdev);
hci_dev_unlock(hdev);
return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONFIG_INFO, 0,
&rp, sizeof(rp));
}
static u32 get_supported_settings(struct hci_dev *hdev)
{
u32 settings = 0;
settings |= MGMT_SETTING_POWERED;
settings |= MGMT_SETTING_BONDABLE;
settings |= MGMT_SETTING_DEBUG_KEYS;
settings |= MGMT_SETTING_CONNECTABLE;
settings |= MGMT_SETTING_DISCOVERABLE;
if (lmp_bredr_capable(hdev)) {
if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
settings |= MGMT_SETTING_FAST_CONNECTABLE;
settings |= MGMT_SETTING_BREDR;
settings |= MGMT_SETTING_LINK_SECURITY;
if (lmp_ssp_capable(hdev)) {
settings |= MGMT_SETTING_SSP;
settings |= MGMT_SETTING_HS;
}
if (lmp_sc_capable(hdev))
settings |= MGMT_SETTING_SECURE_CONN;
}
if (lmp_le_capable(hdev)) {
settings |= MGMT_SETTING_LE;
settings |= MGMT_SETTING_ADVERTISING;
settings |= MGMT_SETTING_SECURE_CONN;
settings |= MGMT_SETTING_PRIVACY;
settings |= MGMT_SETTING_STATIC_ADDRESS;
}
if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
hdev->set_bdaddr)
settings |= MGMT_SETTING_CONFIGURATION;
return settings;
}
static u32 get_current_settings(struct hci_dev *hdev)
{
u32 settings = 0;
if (hdev_is_powered(hdev))
settings |= MGMT_SETTING_POWERED;
if (hci_dev_test_flag(hdev, HCI_CONNECTABLE))
settings |= MGMT_SETTING_CONNECTABLE;
if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
settings |= MGMT_SETTING_FAST_CONNECTABLE;
if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
settings |= MGMT_SETTING_DISCOVERABLE;
if (hci_dev_test_flag(hdev, HCI_BONDABLE))
settings |= MGMT_SETTING_BONDABLE;
if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
settings |= MGMT_SETTING_BREDR;
if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
settings |= MGMT_SETTING_LE;
if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY))
settings |= MGMT_SETTING_LINK_SECURITY;
if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
settings |= MGMT_SETTING_SSP;
if (hci_dev_test_flag(hdev, HCI_HS_ENABLED))
settings |= MGMT_SETTING_HS;
if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
settings |= MGMT_SETTING_ADVERTISING;
if (hci_dev_test_flag(hdev, HCI_SC_ENABLED))
settings |= MGMT_SETTING_SECURE_CONN;
if (hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS))
settings |= MGMT_SETTING_DEBUG_KEYS;
if (hci_dev_test_flag(hdev, HCI_PRIVACY))
settings |= MGMT_SETTING_PRIVACY;
/* The current setting for static address has two purposes. The
* first is to indicate if the static address will be used and
* the second is to indicate if it is actually set.
*
* This means if the static address is not configured, this flag
* will never be set. If the address is configured, then if the
* address is actually used decides if the flag is set or not.
*
* For single mode LE only controllers and dual-mode controllers
* with BR/EDR disabled, the existence of the static address will
* be evaluated.
*/
if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
!bacmp(&hdev->bdaddr, BDADDR_ANY)) {
if (bacmp(&hdev->static_addr, BDADDR_ANY))
settings |= MGMT_SETTING_STATIC_ADDRESS;
}
return settings;
}
#define PNP_INFO_SVCLASS_ID 0x1200
static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
{
u8 *ptr = data, *uuids_start = NULL;
struct bt_uuid *uuid;
if (len < 4)
return ptr;
list_for_each_entry(uuid, &hdev->uuids, list) {
u16 uuid16;
if (uuid->size != 16)
continue;
uuid16 = get_unaligned_le16(&uuid->uuid[12]);
if (uuid16 < 0x1100)
continue;
if (uuid16 == PNP_INFO_SVCLASS_ID)
continue;
if (!uuids_start) {
uuids_start = ptr;
uuids_start[0] = 1;
uuids_start[1] = EIR_UUID16_ALL;
ptr += 2;
}
/* Stop if not enough space to put next UUID */
if ((ptr - data) + sizeof(u16) > len) {
uuids_start[1] = EIR_UUID16_SOME;
break;
}
*ptr++ = (uuid16 & 0x00ff);
*ptr++ = (uuid16 & 0xff00) >> 8;
uuids_start[0] += sizeof(uuid16);
}
return ptr;
}
static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
{
u8 *ptr = data, *uuids_start = NULL;
struct bt_uuid *uuid;
if (len < 6)
return ptr;
list_for_each_entry(uuid, &hdev->uuids, list) {
if (uuid->size != 32)
continue;
if (!uuids_start) {
uuids_start = ptr;
uuids_start[0] = 1;
uuids_start[1] = EIR_UUID32_ALL;
ptr += 2;
}
/* Stop if not enough space to put next UUID */
if ((ptr - data) + sizeof(u32) > len) {
uuids_start[1] = EIR_UUID32_SOME;
break;
}
memcpy(ptr, &uuid->uuid[12], sizeof(u32));
ptr += sizeof(u32);
uuids_start[0] += sizeof(u32);
}
return ptr;
}
static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
{
u8 *ptr = data, *uuids_start = NULL;
struct bt_uuid *uuid;
if (len < 18)
return ptr;
list_for_each_entry(uuid, &hdev->uuids, list) {
if (uuid->size != 128)
continue;
if (!uuids_start) {
uuids_start = ptr;
uuids_start[0] = 1;
uuids_start[1] = EIR_UUID128_ALL;
ptr += 2;
}
/* Stop if not enough space to put next UUID */
if ((ptr - data) + 16 > len) {
uuids_start[1] = EIR_UUID128_SOME;
break;
}
memcpy(ptr, uuid->uuid, 16);
ptr += 16;
uuids_start[0] += 16;
}
return ptr;
}
static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
{
return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
}
static struct mgmt_pending_cmd *pending_find_data(u16 opcode,
struct hci_dev *hdev,
const void *data)
{
return mgmt_pending_find_data(HCI_CHANNEL_CONTROL, opcode, hdev, data);
}
static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
{
u8 ad_len = 0;
size_t name_len;
name_len = strlen(hdev->dev_name);
if (name_len > 0) {
size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
if (name_len > max_len) {
name_len = max_len;
ptr[1] = EIR_NAME_SHORT;
} else
ptr[1] = EIR_NAME_COMPLETE;
ptr[0] = name_len + 1;
memcpy(ptr + 2, hdev->dev_name, name_len);
ad_len += (name_len + 2);
ptr += (name_len + 2);
}
return ad_len;
}
static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
{
/* TODO: Set the appropriate entries based on advertising instance flags
* here once flags other than 0 are supported.
*/
memcpy(ptr, hdev->adv_instance.scan_rsp_data,
hdev->adv_instance.scan_rsp_len);
return hdev->adv_instance.scan_rsp_len;
}
static void update_scan_rsp_data_for_instance(struct hci_request *req,
u8 instance)
{
struct hci_dev *hdev = req->hdev;
struct hci_cp_le_set_scan_rsp_data cp;
u8 len;
if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
return;
memset(&cp, 0, sizeof(cp));
if (instance)
len = create_instance_scan_rsp_data(hdev, cp.data);
else
len = create_default_scan_rsp_data(hdev, cp.data);
if (hdev->scan_rsp_data_len == len &&
!memcmp(cp.data, hdev->scan_rsp_data, len))
return;
memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
hdev->scan_rsp_data_len = len;
cp.length = len;
hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
}
static void update_scan_rsp_data(struct hci_request *req)
{
struct hci_dev *hdev = req->hdev;
u8 instance;
/* The "Set Advertising" setting supersedes the "Add Advertising"
* setting. Here we set the scan response data based on which
* setting was set. When neither apply, default to the global settings,
* represented by instance "0".
*/
if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
!hci_dev_test_flag(hdev, HCI_ADVERTISING))
instance = 0x01;
else
instance = 0x00;
update_scan_rsp_data_for_instance(req, instance);
}
static u8 get_adv_discov_flags(struct hci_dev *hdev)
{
struct mgmt_pending_cmd *cmd;
/* If there's a pending mgmt command the flags will not yet have
* their final values, so check for this first.
*/
cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
if (cmd) {
struct mgmt_mode *cp = cmd->param;
if (cp->val == 0x01)
return LE_AD_GENERAL;
else if (cp->val == 0x02)
return LE_AD_LIMITED;
} else {
if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
return LE_AD_LIMITED;
else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
return LE_AD_GENERAL;
}
return 0;
}
static u8 get_current_adv_instance(struct hci_dev *hdev)
{
/* The "Set Advertising" setting supersedes the "Add Advertising"
* setting. Here we set the advertising data based on which
* setting was set. When neither apply, default to the global settings,
* represented by instance "0".
*/
if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
!hci_dev_test_flag(hdev, HCI_ADVERTISING))
return 0x01;
return 0x00;
}
static bool get_connectable(struct hci_dev *hdev)
{
struct mgmt_pending_cmd *cmd;
/* If there's a pending mgmt command the flag will not yet have
* it's final value, so check for this first.
*/
cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
if (cmd) {
struct mgmt_mode *cp = cmd->param;
return cp->val;
}
return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
}
static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
{
u32 flags;
if (instance > 0x01)
return 0;
if (instance == 0x01)
return hdev->adv_instance.flags;
/* Instance 0 always manages the "Tx Power" and "Flags" fields */
flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
/* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting corresponds
* to the "connectable" instance flag.
*/
if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
flags |= MGMT_ADV_FLAG_CONNECTABLE;
return flags;
}
static u8 get_adv_instance_scan_rsp_len(struct hci_dev *hdev, u8 instance)
{
/* Ignore instance 0 and other unsupported instances */
if (instance != 0x01)