net/netfilter/xt_TCPOPTSTRIP.c

File Facts

System

Linux kernel

Corpus path

net/netfilter/xt_TCPOPTSTRIP.c

Extension

.c

Size

3861 bytes

Lines

154

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/skbuff.h
• linux/ip.h
• linux/ipv6.h
• linux/tcp.h
• net/ipv6.h
• net/tcp.h
• linux/netfilter/x_tables.h
• linux/netfilter/xt_TCPOPTSTRIP.h

Detected Declarations

• function Copyright
• function tcpoptstrip_mangle_packet
• function tcpoptstrip_tg4
• function tcpoptstrip_tg6
• function tcpoptstrip_tg_init
• function tcpoptstrip_tg_exit
• module init tcpoptstrip_tg_init

Annotated Snippet

module_init(tcpoptstrip_tg_init);
module_exit(tcpoptstrip_tg_exit);
MODULE_AUTHOR("Sven Schnelle <svens@bitebene.org>, Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: TCP option stripping");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_TCPOPTSTRIP");
MODULE_ALIAS("ip6t_TCPOPTSTRIP");

Annotation

• Immediate include surface: `linux/module.h`, `linux/skbuff.h`, `linux/ip.h`, `linux/ipv6.h`, `linux/tcp.h`, `net/ipv6.h`, `net/tcp.h`, `linux/netfilter/x_tables.h`.
• Detected declarations: `function Copyright`, `function tcpoptstrip_mangle_packet`, `function tcpoptstrip_tg4`, `function tcpoptstrip_tg6`, `function tcpoptstrip_tg_init`, `function tcpoptstrip_tg_exit`, `module init tcpoptstrip_tg_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.