net/bridge/netfilter/nf_conntrack_bridge.c

File Facts

System

Linux kernel

Corpus path

net/bridge/netfilter/nf_conntrack_bridge.c

Extension

.c

Size

10588 bytes

Lines

455

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

Dependency Surface

• linux/types.h
• linux/ip.h
• linux/netfilter.h
• linux/netfilter_ipv6.h
• linux/netfilter_bridge.h
• linux/module.h
• linux/skbuff.h
• linux/icmp.h
• linux/sysctl.h
• net/route.h
• net/ip.h
• net/netfilter/nf_conntrack.h
• net/netfilter/nf_conntrack_core.h
• net/netfilter/nf_conntrack_helper.h
• net/netfilter/nf_conntrack_bridge.h
• linux/netfilter_ipv4.h
• ../br_private.h

Detected Declarations

• function nf_br_ip_fragment
• function skb_walk_frags
• function br_skb_cb_save
• function br_skb_cb_restore
• function nf_ct_br_defrag4
• function nf_ct_br_defrag6
• function nf_ct_br_ip_check
• function nf_ct_br_ipv6_check
• function nf_ct_bridge_pre
• function nf_ct_bridge_in
• function nf_ct_bridge_frag_save
• function nf_ct_bridge_refrag
• function nf_ct_bridge_frag_restore
• function nf_ct_bridge_refrag_post
• function nf_ct_bridge_post
• function nf_conntrack_l3proto_bridge_init
• function nf_conntrack_l3proto_bridge_fini
• module init nf_conntrack_l3proto_bridge_init

Annotated Snippet

module_init(nf_conntrack_l3proto_bridge_init);
module_exit(nf_conntrack_l3proto_bridge_fini);

MODULE_ALIAS("nf_conntrack-" __stringify(AF_BRIDGE));
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Bridge IPv4 and IPv6 connection tracking");

Annotation

• Immediate include surface: `linux/types.h`, `linux/ip.h`, `linux/netfilter.h`, `linux/netfilter_ipv6.h`, `linux/netfilter_bridge.h`, `linux/module.h`, `linux/skbuff.h`, `linux/icmp.h`.
• Detected declarations: `function nf_br_ip_fragment`, `function skb_walk_frags`, `function br_skb_cb_save`, `function br_skb_cb_restore`, `function nf_ct_br_defrag4`, `function nf_ct_br_defrag6`, `function nf_ct_br_ip_check`, `function nf_ct_br_ipv6_check`, `function nf_ct_bridge_pre`, `function nf_ct_bridge_in`.
• 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.