linux/include/net/bluetooth/hci_sync.h
Luiz Augusto von Dentz d883a4669a Bluetooth: hci_sync: Only allow hci_cmd_sync_queue if running
This makes sure hci_cmd_sync_queue only queue new work if HCI_RUNNING
has been set otherwise there is a risk of commands being sent while
turning off.

Because hci_cmd_sync_queue can no longer queue work while HCI_RUNNING is
not set it cannot be used to power on adapters so instead
hci_cmd_sync_submit is introduced which bypass the HCI_RUNNING check, so
it behaves like the old implementation.

Link: https://lore.kernel.org/all/CAB4PzUpDMvdc8j2MdeSAy1KkAE-D3woprCwAdYWeOc-3v3c9Sw@mail.gmail.com/
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2023-04-23 22:07:43 -07:00

136 lines
5.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2021 Intel Corporation
*/
typedef int (*hci_cmd_sync_work_func_t)(struct hci_dev *hdev, void *data);
typedef void (*hci_cmd_sync_work_destroy_t)(struct hci_dev *hdev, void *data,
int err);
struct hci_cmd_sync_work_entry {
struct list_head list;
hci_cmd_sync_work_func_t func;
void *data;
hci_cmd_sync_work_destroy_t destroy;
};
struct adv_info;
/* Function with sync suffix shall not be called with hdev->lock held as they
* wait the command to complete and in the meantime an event could be received
* which could attempt to acquire hdev->lock causing a deadlock.
*/
struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout);
struct sk_buff *__hci_cmd_sync_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout,
struct sock *sk);
int __hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u32 timeout);
int __hci_cmd_sync_status_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param, u8 event, u32 timeout,
struct sock *sk);
void hci_cmd_sync_init(struct hci_dev *hdev);
void hci_cmd_sync_clear(struct hci_dev *hdev);
void hci_cmd_sync_cancel(struct hci_dev *hdev, int err);
void __hci_cmd_sync_cancel(struct hci_dev *hdev, int err);
int hci_cmd_sync_submit(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_update_eir_sync(struct hci_dev *hdev);
int hci_update_class_sync(struct hci_dev *hdev);
int hci_update_eir_sync(struct hci_dev *hdev);
int hci_update_class_sync(struct hci_dev *hdev);
int hci_update_name_sync(struct hci_dev *hdev);
int hci_write_ssp_mode_sync(struct hci_dev *hdev, u8 mode);
int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
bool use_rpa, struct adv_info *adv_instance,
u8 *own_addr_type, bdaddr_t *rand_addr);
int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
bool rpa, u8 *own_addr_type);
int hci_update_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance);
int hci_update_adv_data_sync(struct hci_dev *hdev, u8 instance);
int hci_update_adv_data(struct hci_dev *hdev, u8 instance);
int hci_schedule_adv_instance_sync(struct hci_dev *hdev, u8 instance,
bool force);
int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
int hci_start_ext_adv_sync(struct hci_dev *hdev, u8 instance);
int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance);
int hci_enable_advertising_sync(struct hci_dev *hdev);
int hci_enable_advertising(struct hci_dev *hdev);
int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
u8 *data, u32 flags, u16 min_interval,
u16 max_interval, u16 sync_interval);
int hci_remove_advertising_sync(struct hci_dev *hdev, struct sock *sk,
u8 instance, bool force);
int hci_disable_advertising_sync(struct hci_dev *hdev);
int hci_clear_adv_instance_sync(struct hci_dev *hdev, struct sock *sk,
u8 instance, bool force);
int hci_update_passive_scan_sync(struct hci_dev *hdev);
int hci_update_passive_scan(struct hci_dev *hdev);
int hci_read_rssi_sync(struct hci_dev *hdev, __le16 handle);
int hci_read_tx_power_sync(struct hci_dev *hdev, __le16 handle, u8 type);
int hci_write_sc_support_sync(struct hci_dev *hdev, u8 val);
int hci_read_clock_sync(struct hci_dev *hdev, struct hci_cp_read_clock *cp);
int hci_write_fast_connectable_sync(struct hci_dev *hdev, bool enable);
int hci_update_scan_sync(struct hci_dev *hdev);
int hci_update_scan(struct hci_dev *hdev);
int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le, u8 simul);
int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance,
struct sock *sk);
int hci_remove_ext_adv_instance(struct hci_dev *hdev, u8 instance);
struct sk_buff *hci_read_local_oob_data_sync(struct hci_dev *hdev, bool ext,
struct sock *sk);
int hci_reset_sync(struct hci_dev *hdev);
int hci_dev_open_sync(struct hci_dev *hdev);
int hci_dev_close_sync(struct hci_dev *hdev);
int hci_powered_update_sync(struct hci_dev *hdev);
int hci_set_powered_sync(struct hci_dev *hdev, u8 val);
int hci_update_discoverable_sync(struct hci_dev *hdev);
int hci_update_discoverable(struct hci_dev *hdev);
int hci_update_connectable_sync(struct hci_dev *hdev);
int hci_start_discovery_sync(struct hci_dev *hdev);
int hci_stop_discovery_sync(struct hci_dev *hdev);
int hci_suspend_sync(struct hci_dev *hdev);
int hci_resume_sync(struct hci_dev *hdev);
struct hci_conn;
int hci_abort_conn_sync(struct hci_dev *hdev, struct hci_conn *conn, u8 reason);
int hci_le_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn);
int hci_le_create_cis_sync(struct hci_dev *hdev, struct hci_conn *conn);
int hci_le_remove_cig_sync(struct hci_dev *hdev, u8 handle);
int hci_le_terminate_big_sync(struct hci_dev *hdev, u8 handle, u8 reason);
int hci_le_big_terminate_sync(struct hci_dev *hdev, u8 handle);
int hci_le_pa_terminate_sync(struct hci_dev *hdev, u16 handle);