include/linux/ieee80211-mesh.h

File Facts

System

Linux kernel

Corpus path

include/linux/ieee80211-mesh.h

Extension

.h

Size

12258 bytes

Lines

443

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• linux/if_ether.h

Detected Declarations

• struct ieee80211s_hdr
• struct ieee80211_mesh_hwmp_preq_target
• struct ieee80211_mesh_hwmp_preq_top
• struct ieee80211_mesh_hwmp_preq_bottom
• struct ieee80211_mesh_hwmp_prep_top
• struct ieee80211_mesh_hwmp_prep_bottom
• struct ieee80211_mesh_hwmp_perr_dst
• struct ieee80211_mesh_hwmp_perr
• struct ieee80211_mesh_chansw_params_ie
• struct ieee80211_meshconf_ie
• struct ieee80211_rann_ie
• enum ieee80211_preq_flags
• enum ieee80211_preq_target_flags
• enum mesh_config_capab_flags
• enum ieee80211_rann_flags
• enum ieee80211_mesh_actioncode
• enum ieee80211_mesh_sync_method
• enum ieee80211_mesh_path_protocol
• enum ieee80211_mesh_path_metric
• enum ieee80211_root_mode_identifier
• function ieee80211_mesh_preq_prep_ae_enabled
• function ieee80211_mesh_hwmp_preq_get_bottom
• function ieee80211_mesh_hwmp_prep_get_bottom
• function ieee80211_mesh_hwmp_perr_get_dst
• function ieee80211_mesh_hwmp_perr_get_addr
• function ieee80211_mesh_hwmp_perr_get_sn
• function ieee80211_mesh_hwmp_perr_get_rcode
• function ieee80211_mesh_preq_size_ok
• function ieee80211_mesh_prep_size_ok
• function ieee80211_mesh_perr_size_ok

Annotated Snippet

struct ieee80211s_hdr {
	u8 flags;
	u8 ttl;
	__le32 seqnum;
	u8 eaddr1[ETH_ALEN];
	u8 eaddr2[ETH_ALEN];
} __packed __aligned(2);

struct ieee80211_mesh_hwmp_preq_target {
	u8 flags;
	u8 addr[ETH_ALEN];
	__le32 sn;
} __packed;

struct ieee80211_mesh_hwmp_preq_top {
	u8 flags;
	u8 hopcount;
	u8 ttl;
	__le32 preq_id;
	u8 orig_addr[ETH_ALEN];
	__le32 orig_sn;

	/* optional AE, lifetime, metric, target */
	u8 variable[];
} __packed;

struct ieee80211_mesh_hwmp_preq_bottom {
	__le32 lifetime;
	__le32 metric;
	u8 target_count;
	struct ieee80211_mesh_hwmp_preq_target targets[];
} __packed;

struct ieee80211_mesh_hwmp_prep_top {
	u8 flags;
	u8 hopcount;
	u8 ttl;
	u8 target_addr[ETH_ALEN];
	__le32 target_sn;

	/* optional Target External Address */
	u8 variable[];
} __packed;

struct ieee80211_mesh_hwmp_prep_bottom {
	__le32 lifetime;
	__le32 metric;
	u8 orig_addr[ETH_ALEN];
	__le32 orig_sn;
} __packed;

struct ieee80211_mesh_hwmp_perr_dst {
	u8 flags;
	u8 addr[ETH_ALEN];
	__le32 sn;
	/* optional Destination External Address */
	u8 variable[];
} __packed;

struct ieee80211_mesh_hwmp_perr {
	u8 ttl;
	u8 number_of_dst;
	/* Destinations */
	u8 variable[];
} __packed;

/* Mesh flags */
#define MESH_FLAGS_AE_A4 	0x1
#define MESH_FLAGS_AE_A5_A6	0x2
#define MESH_FLAGS_AE		0x3
#define MESH_FLAGS_PS_DEEP	0x4

/* HWMP IE processing macros */
#define AE_F			(1<<6)

/**
 * enum ieee80211_preq_flags - mesh PREQ element flags
 *
 * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 */
enum ieee80211_preq_flags {
	IEEE80211_PREQ_PROACTIVE_PREP_FLAG	= 1<<2,
};

/**
 * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 *
 * @IEEE80211_PREQ_TO_FLAG: target only subfield
 * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 */

Annotation

• Immediate include surface: `linux/types.h`, `linux/if_ether.h`.
• Detected declarations: `struct ieee80211s_hdr`, `struct ieee80211_mesh_hwmp_preq_target`, `struct ieee80211_mesh_hwmp_preq_top`, `struct ieee80211_mesh_hwmp_preq_bottom`, `struct ieee80211_mesh_hwmp_prep_top`, `struct ieee80211_mesh_hwmp_prep_bottom`, `struct ieee80211_mesh_hwmp_perr_dst`, `struct ieee80211_mesh_hwmp_perr`, `struct ieee80211_mesh_chansw_params_ie`, `struct ieee80211_meshconf_ie`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source implementation candidate.

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.