net/bridge/netfilter/nft_meta_bridge.c

File Facts

System

Linux kernel

Corpus path

net/bridge/netfilter/nft_meta_bridge.c

Extension

.c

Size

5891 bytes

Lines

236

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/init.h
• linux/module.h
• linux/netlink.h
• linux/netfilter.h
• linux/netfilter/nf_tables.h
• net/netfilter/nf_tables.h
• net/netfilter/nft_meta.h
• linux/if_bridge.h
• uapi/linux/netfilter_bridge.h
• ../br_private.h

Detected Declarations

• function nft_meta_get_bridge
• function nft_meta_bridge_get_eval
• function nft_meta_bridge_get_init
• function nft_meta_bridge_set_eval
• function nft_meta_bridge_set_init
• function nft_meta_bridge_set_validate
• function nft_meta_bridge_select_ops
• function nft_meta_bridge_module_init
• function nft_meta_bridge_module_exit
• module init nft_meta_bridge_module_init

Annotated Snippet

module_init(nft_meta_bridge_module_init);
module_exit(nft_meta_bridge_module_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("wenxu <wenxu@ucloud.cn>");
MODULE_ALIAS_NFT_AF_EXPR(AF_BRIDGE, "meta");
MODULE_DESCRIPTION("Support for bridge dedicated meta key");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/init.h`, `linux/module.h`, `linux/netlink.h`, `linux/netfilter.h`, `linux/netfilter/nf_tables.h`, `net/netfilter/nf_tables.h`, `net/netfilter/nft_meta.h`.
• Detected declarations: `function nft_meta_get_bridge`, `function nft_meta_bridge_get_eval`, `function nft_meta_bridge_get_init`, `function nft_meta_bridge_set_eval`, `function nft_meta_bridge_set_init`, `function nft_meta_bridge_set_validate`, `function nft_meta_bridge_select_ops`, `function nft_meta_bridge_module_init`, `function nft_meta_bridge_module_exit`, `module init nft_meta_bridge_module_init`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.