net/bridge/br_netfilter_hooks.c

File Facts

System

Linux kernel

Corpus path

net/bridge/br_netfilter_hooks.c

Extension

.c

Size

35756 bytes

Lines

1339

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/module.h
• linux/kernel.h
• linux/slab.h
• linux/ip.h
• linux/netdevice.h
• linux/skbuff.h
• linux/if_arp.h
• linux/if_ether.h
• linux/if_vlan.h
• linux/if_pppox.h
• linux/ppp_defs.h
• linux/netfilter_bridge.h
• uapi/linux/netfilter_bridge.h
• linux/netfilter_ipv4.h
• linux/netfilter_ipv6.h
• linux/netfilter_arp.h
• linux/in_route.h
• linux/rculist.h
• linux/inetdevice.h
• net/ip.h
• net/ipv6.h
• net/ip6_route.h
• net/addrconf.h
• net/dst_metadata.h
• net/route.h
• net/netfilter/br_netfilter.h
• net/netns/generic.h
• net/inet_dscp.h
• linux/uaccess.h
• br_private.h
• linux/sysctl.h
• net/netfilter/nf_conntrack_core.h

Detected Declarations

• struct brnf_net
• struct brnf_frag_data
• function vlan_proto
• function is_vlan_ip
• function is_vlan_ipv6
• function is_vlan_arp
• function pppoe_proto
• function is_pppoe_ip
• function is_pppoe_ipv6
• function nf_bridge_info_free
• function nf_bridge_encap_header_len
• function nf_bridge_pull_encap_header
• function nf_bridge_pull_encap_header_rcsum
• function br_validate_ipv4
• function nf_bridge_update_protocol
• function br_handle_frame_finish
• function br_nf_ipv4_daddr_was_changed
• function place
• function br_nf_pre_routing
• function is_pppoe_ipv6
• function ethX
• function br_nf_forward_finish
• function br_nf_forward_ip
• function br_nf_forward_arp
• function br_nf_forward
• function br_nf_push_frag_xmit
• function br_nf_ip_fragment
• function nf_bridge_mtu_reduction
• function br_nf_dev_queue_xmit
• function br_nf_post_routing
• function ip_sabotage_in
• function br_nf_pre_routing_finish_bridge_slow
• function br_nf_dev_xmit
• function brnf_device_event
• function hooks
• function brnf_sysctl_call_tables
• function br_netfilter_sysctl_default
• function br_netfilter_sysctl_init_net
• function br_netfilter_sysctl_exit_net
• function brnf_init_net
• function brnf_exit_net
• function br_netfilter_init
• function br_netfilter_fini
• module init br_netfilter_init

Annotated Snippet

module_init(br_netfilter_init);
module_exit(br_netfilter_fini);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Lennert Buytenhek <buytenh@gnu.org>");
MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
MODULE_DESCRIPTION("Linux ethernet netfilter firewall bridge");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/slab.h`, `linux/ip.h`, `linux/netdevice.h`, `linux/skbuff.h`, `linux/if_arp.h`, `linux/if_ether.h`.
• Detected declarations: `struct brnf_net`, `struct brnf_frag_data`, `function vlan_proto`, `function is_vlan_ip`, `function is_vlan_ipv6`, `function is_vlan_arp`, `function pppoe_proto`, `function is_pppoe_ip`, `function is_pppoe_ipv6`, `function nf_bridge_info_free`.
• 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.