net/netlink/diag.c

File Facts

System

Linux kernel

Corpus path

net/netlink/diag.c

Extension

.c

Size

5672 bytes

Lines

264

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• 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

• linux/module.h
• net/sock.h
• linux/netlink.h
• linux/sock_diag.h
• linux/netlink_diag.h
• linux/rhashtable.h
• af_netlink.h

Detected Declarations

• function sk_diag_dump_groups
• function sk_diag_put_flags
• function sk_diag_fill
• function __netlink_diag_dump
• function netlink_diag_dump
• function netlink_diag_dump_done
• function netlink_diag_handler_dump
• function netlink_diag_init
• function netlink_diag_exit
• module init netlink_diag_init

Annotated Snippet

module_init(netlink_diag_init);
module_exit(netlink_diag_exit);
MODULE_DESCRIPTION("Netlink-based socket monitoring/diagnostic interface (sock_diag)");
MODULE_LICENSE("GPL");
MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 16 /* AF_NETLINK */);

Annotation

• Immediate include surface: `linux/module.h`, `net/sock.h`, `linux/netlink.h`, `linux/sock_diag.h`, `linux/netlink_diag.h`, `linux/rhashtable.h`, `af_netlink.h`.
• Detected declarations: `function sk_diag_dump_groups`, `function sk_diag_put_flags`, `function sk_diag_fill`, `function __netlink_diag_dump`, `function netlink_diag_dump`, `function netlink_diag_dump_done`, `function netlink_diag_handler_dump`, `function netlink_diag_init`, `function netlink_diag_exit`, `module init netlink_diag_init`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration 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.