net/sched/act_connmark.c
Source file repositories/reference/linux-study-clean/net/sched/act_connmark.c
File Facts
- System
- Linux kernel
- Corpus path
net/sched/act_connmark.c- Extension
.c- Size
- 6755 bytes
- Lines
- 285
- 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.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/init.hlinux/kernel.hlinux/skbuff.hlinux/rtnetlink.hlinux/pkt_cls.hlinux/ip.hlinux/ipv6.hnet/netlink.hnet/pkt_sched.hnet/act_api.hnet/pkt_cls.huapi/linux/tc_act/tc_connmark.hnet/tc_act/tc_connmark.hnet/tc_wrapper.hnet/netfilter/nf_conntrack.hnet/netfilter/nf_conntrack_core.hnet/netfilter/nf_conntrack_zones.h
Detected Declarations
function tcf_connmark_actfunction tcf_connmark_initfunction tcf_connmark_dumpfunction tcf_connmark_cleanupfunction connmark_init_netfunction connmark_exit_netfunction connmark_init_modulefunction connmark_cleanup_modulemodule init connmark_init_module
Annotated Snippet
module_init(connmark_init_module);
module_exit(connmark_cleanup_module);
MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
MODULE_DESCRIPTION("Connection tracking mark restoring");
MODULE_LICENSE("GPL");Annotation
- Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/kernel.h`, `linux/skbuff.h`, `linux/rtnetlink.h`, `linux/pkt_cls.h`, `linux/ip.h`, `linux/ipv6.h`.
- Detected declarations: `function tcf_connmark_act`, `function tcf_connmark_init`, `function tcf_connmark_dump`, `function tcf_connmark_cleanup`, `function connmark_init_net`, `function connmark_exit_net`, `function connmark_init_module`, `function connmark_cleanup_module`, `module init connmark_init_module`.
- Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.