net/netfilter/xt_HL.c
Source file repositories/reference/linux-study-clean/net/netfilter/xt_HL.c
File Facts
- System
- Linux kernel
- Corpus path
net/netfilter/xt_HL.c- Extension
.c- Size
- 3464 bytes
- Lines
- 160
- 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.hlinux/skbuff.hlinux/ip.hlinux/ipv6.hnet/checksum.hlinux/netfilter/x_tables.hlinux/netfilter_ipv4/ipt_TTL.hlinux/netfilter_ipv6/ip6t_HL.h
Detected Declarations
function ttl_tgfunction hl_tg6function ttl_tg_checkfunction hl_tg6_checkfunction hl_tg_initfunction hl_tg_exitmodule init hl_tg_init
Annotated Snippet
module_init(hl_tg_init);
module_exit(hl_tg_exit);
MODULE_ALIAS("ipt_TTL");
MODULE_ALIAS("ip6t_HL");Annotation
- Immediate include surface: `linux/module.h`, `linux/skbuff.h`, `linux/ip.h`, `linux/ipv6.h`, `net/checksum.h`, `linux/netfilter/x_tables.h`, `linux/netfilter_ipv4/ipt_TTL.h`, `linux/netfilter_ipv6/ip6t_HL.h`.
- Detected declarations: `function ttl_tg`, `function hl_tg6`, `function ttl_tg_check`, `function hl_tg6_check`, `function hl_tg_init`, `function hl_tg_exit`, `module init hl_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.