net/bluetooth/msft.c

Source file repositories/reference/linux-study-clean/net/bluetooth/msft.c

File Facts

System: Linux kernel
Corpus path: net/bluetooth/msft.c
Extension: .c
Size: 30612 bytes
Lines: 1202
Domain: Networking Core
Bucket: Sockets, Protocols, Packet Path, And Network Policy
Inferred role: Networking Core: implementation source
Status: source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
Allocates kernel memory; connect allocation flags and lifetime to context constraints.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

net/bluetooth/bluetooth.h
net/bluetooth/hci_core.h
net/bluetooth/mgmt.h
mgmt_util.h
msft.h

Detected Declarations

struct msft_cp_read_supported_features
struct msft_rp_read_supported_features
struct msft_le_monitor_advertisement_pattern
struct msft_le_monitor_advertisement_pattern_data
struct msft_cp_le_monitor_advertisement
struct msft_rp_le_monitor_advertisement
struct msft_cp_le_cancel_monitor_advertisement
struct msft_rp_le_cancel_monitor_advertisement
struct msft_cp_le_set_advertisement_filter_enable
struct msft_rp_le_set_advertisement_filter_enable
struct msft_ev_le_monitor_device
struct msft_monitor_advertisement_handle_data
struct msft_monitor_addr_filter_data
struct msft_data
enum monitor_addr_filter_state
function msft_monitor_supported
function read_supported_features
function list_for_each_entry
function list_for_each_entry
function msft_monitor_device_del
function list_for_each_entry_safe
function msft_le_monitor_advertisement_cb
function msft_remove_addr_filters_sync
function list_for_each_entry_safe
function msft_add_address_filter_sync
function list_for_each_entry_safe
function msft_le_cancel_monitor_advertisement_cb
function msft_remove_monitor_sync
function msft_suspend_sync
function msft_monitor_rssi_valid
function msft_monitor_pattern_valid
function msft_add_monitor_sync
function list_for_each_entry
function list_for_each_entry
function reregister_monitor
function msft_resume_sync
function msft_do_open
function msft_do_close
function msft_cancel_address_filter_sync
function msft_register
function msft_release
function msft_device_found
function msft_device_lost
function msft_add_address_filter_sync
function msft_monitor_device_evt
function msft_monitor_device_evt
function msft_vendor_evt
function msft_get_features

Annotated Snippet

struct msft_cp_read_supported_features {
	__u8   sub_opcode;
} __packed;

struct msft_rp_read_supported_features {
	__u8   status;
	__u8   sub_opcode;
	__le64 features;
	__u8   evt_prefix_len;
	__u8   evt_prefix[];
} __packed;

#define MSFT_OP_LE_MONITOR_ADVERTISEMENT	0x03
#define MSFT_MONITOR_ADVERTISEMENT_TYPE_PATTERN	0x01
struct msft_le_monitor_advertisement_pattern {
	__u8 length;
	__u8 data_type;
	__u8 start_byte;
	__u8 pattern[];
};

struct msft_le_monitor_advertisement_pattern_data {
	__u8 count;
	__u8 data[];
};

struct msft_cp_le_monitor_advertisement {
	__u8 sub_opcode;
	__s8 rssi_high;
	__s8 rssi_low;
	__u8 rssi_low_interval;
	__u8 rssi_sampling_period;
	__u8 cond_type;
	__u8 data[];
} __packed;

struct msft_rp_le_monitor_advertisement {
	__u8 status;
	__u8 sub_opcode;
	__u8 handle;
} __packed;

#define MSFT_OP_LE_CANCEL_MONITOR_ADVERTISEMENT	0x04
struct msft_cp_le_cancel_monitor_advertisement {
	__u8 sub_opcode;
	__u8 handle;
} __packed;

struct msft_rp_le_cancel_monitor_advertisement {
	__u8 status;
	__u8 sub_opcode;
} __packed;

#define MSFT_OP_LE_SET_ADVERTISEMENT_FILTER_ENABLE	0x05
struct msft_cp_le_set_advertisement_filter_enable {
	__u8 sub_opcode;
	__u8 enable;
} __packed;

struct msft_rp_le_set_advertisement_filter_enable {
	__u8 status;
	__u8 sub_opcode;
} __packed;

#define MSFT_EV_LE_MONITOR_DEVICE	0x02
struct msft_ev_le_monitor_device {
	__u8     addr_type;
	bdaddr_t bdaddr;
	__u8     monitor_handle;
	__u8     monitor_state;
} __packed;

struct msft_monitor_advertisement_handle_data {
	__u8  msft_handle;
	__u16 mgmt_handle;
	__s8 rssi_high;
	__s8 rssi_low;
	__u8 rssi_low_interval;
	__u8 rssi_sampling_period;
	__u8 cond_type;
	struct list_head list;
};

enum monitor_addr_filter_state {
	AF_STATE_IDLE,
	AF_STATE_ADDING,
	AF_STATE_ADDED,
	AF_STATE_REMOVING,
};

Annotation

Immediate include surface: `net/bluetooth/bluetooth.h`, `net/bluetooth/hci_core.h`, `net/bluetooth/mgmt.h`, `mgmt_util.h`, `msft.h`.
Detected declarations: `struct msft_cp_read_supported_features`, `struct msft_rp_read_supported_features`, `struct msft_le_monitor_advertisement_pattern`, `struct msft_le_monitor_advertisement_pattern_data`, `struct msft_cp_le_monitor_advertisement`, `struct msft_rp_le_monitor_advertisement`, `struct msft_cp_le_cancel_monitor_advertisement`, `struct msft_rp_le_cancel_monitor_advertisement`, `struct msft_cp_le_set_advertisement_filter_enable`, `struct msft_rp_le_set_advertisement_filter_enable`.
Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
Implementation status: source implementation candidate.
Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.