net/phonet/af_phonet.c

File Facts

System

Linux kernel

Corpus path

net/phonet/af_phonet.c

Extension

.c

Size

12522 bytes

Lines

544

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/module.h
• linux/slab.h
• linux/unaligned.h
• net/sock.h
• linux/if_phonet.h
• linux/phonet.h
• net/phonet/phonet.h
• net/phonet/pn_dev.h

Detected Declarations

• function phonet_proto_put
• function pn_socket_create
• function pn_header_create
• function pn_header_parse
• function pn_send
• function pn_raw_send
• function pn_skb_send
• function can_respond
• function send_obj_unreachable
• function send_reset_indications
• function phonet_rcv
• function phonet_proto_register
• function phonet_proto_unregister
• function phonet_init
• function phonet_exit
• module init phonet_init
• export phonet_header_ops
• export pn_skb_send
• export phonet_proto_register
• export phonet_proto_unregister

Annotated Snippet

module_init(phonet_init);
module_exit(phonet_exit);
MODULE_DESCRIPTION("Phonet protocol stack for Linux");
MODULE_LICENSE("GPL");
MODULE_ALIAS_NETPROTO(PF_PHONET);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/slab.h`, `linux/unaligned.h`, `net/sock.h`, `linux/if_phonet.h`, `linux/phonet.h`, `net/phonet/phonet.h`.
• Detected declarations: `function phonet_proto_put`, `function pn_socket_create`, `function pn_header_create`, `function pn_header_parse`, `function pn_send`, `function pn_raw_send`, `function pn_skb_send`, `function can_respond`, `function send_obj_unreachable`, `function send_reset_indications`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration 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.