include/net/amt.h

File Facts

System

Linux kernel

Corpus path

include/net/amt.h

Extension

.h

Size

8543 bytes

Lines

409

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/siphash.h
• linux/jhash.h
• linux/netdevice.h
• net/gro_cells.h
• net/rtnetlink.h

Detected Declarations

• struct amt_header
• struct amt_header_discovery
• struct amt_header_advertisement
• struct amt_header_request
• struct amt_header_membership_query
• struct amt_header_membership_update
• struct amt_header_mcast_data
• struct amt_headers
• struct amt_gw_headers
• struct amt_relay_headers
• struct amt_skb_cb
• struct amt_tunnel_list
• struct amt_source_node
• struct amt_group_node
• struct amt_events
• struct amt_dev
• enum amt_msg_type
• enum amt_ops
• enum amt_filter
• enum amt_act
• enum amt_status
• enum amt_event
• enum amt_source_status
• function amt_gmi

Annotated Snippet

struct amt_header {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u8 type:4,
	   version:4;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u8 version:4,
	   type:4;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
} __packed;

struct amt_header_discovery {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved:24;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		reserved:24;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_advertisement {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved:24;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		reserved:24;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
	__be32	ip4;
} __packed;

struct amt_header_request {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u32	type:4,
		version:4,
		reserved1:7,
		p:1,
		reserved2:16;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u32	version:4,
		type:4,
		p:1,
		reserved1:7,
		reserved2:16;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_membership_query {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u64	type:4,
		version:4,
		reserved:6,
		l:1,
		g:1,
		response_mac:48;
#elif defined(__BIG_ENDIAN_BITFIELD)
	u64	version:4,
		type:4,
		g:1,
		l:1,
		reserved:6,
		response_mac:48;
#else
#error  "Please fix <asm/byteorder.h>"
#endif
	__be32	nonce;
} __packed;

struct amt_header_membership_update {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	u64	type:4,
		version:4,
		reserved:8,
		response_mac:48;
#elif defined(__BIG_ENDIAN_BITFIELD)

Annotation

• Immediate include surface: `linux/siphash.h`, `linux/jhash.h`, `linux/netdevice.h`, `net/gro_cells.h`, `net/rtnetlink.h`.
• Detected declarations: `struct amt_header`, `struct amt_header_discovery`, `struct amt_header_advertisement`, `struct amt_header_request`, `struct amt_header_membership_query`, `struct amt_header_membership_update`, `struct amt_header_mcast_data`, `struct amt_headers`, `struct amt_gw_headers`, `struct amt_relay_headers`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• 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.