net/netfilter/nf_conntrack_timestamp.c
Source file repositories/reference/linux-study-clean/net/netfilter/nf_conntrack_timestamp.c
File Facts
- System
- Linux kernel
- Corpus path
net/netfilter/nf_conntrack_timestamp.c- Extension
.c- Size
- 667 bytes
- Lines
- 26
- Domain
- Networking Core
- Bucket
- Sockets, Protocols, Packet Path, And Network Policy
- Inferred role
- Networking Core: implementation source
- Status
- source 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/netfilter.hlinux/slab.hlinux/kernel.hlinux/moduleparam.hnet/netfilter/nf_conntrack.hnet/netfilter/nf_conntrack_extend.hnet/netfilter/nf_conntrack_timestamp.h
Detected Declarations
function nf_conntrack_tstamp_pernet_init
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (C) 2010 Pablo Neira Ayuso <pablo@netfilter.org>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/netfilter.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_extend.h>
#include <net/netfilter/nf_conntrack_timestamp.h>
static bool nf_ct_tstamp __read_mostly;
module_param_named(tstamp, nf_ct_tstamp, bool, 0644);
MODULE_PARM_DESC(tstamp, "Enable connection tracking flow timestamping.");
void nf_conntrack_tstamp_pernet_init(struct net *net)
{
net->ct.sysctl_tstamp = nf_ct_tstamp;
}
Annotation
- Immediate include surface: `linux/netfilter.h`, `linux/slab.h`, `linux/kernel.h`, `linux/moduleparam.h`, `net/netfilter/nf_conntrack.h`, `net/netfilter/nf_conntrack_extend.h`, `net/netfilter/nf_conntrack_timestamp.h`.
- Detected declarations: `function nf_conntrack_tstamp_pernet_init`.
- Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
- Implementation status: source 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.