net/netfilter/ipset/pfxlen.c

File Facts

System

Linux kernel

Corpus path

net/netfilter/ipset/pfxlen.c

Extension

.c

Size

8248 bytes

Lines

190

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.

Dependency Surface

• linux/export.h
• linux/netfilter/ipset/pfxlen.h

Detected Declarations

• function ip_set_range_to_cidr
• export ip_set_netmask_map
• export ip_set_hostmask_map
• export ip_set_range_to_cidr

Annotated Snippet

if (!after(last, to)) {
			*cidr = i;
			return last;
		}
	}
	*cidr = 32;
	return from;
}
EXPORT_SYMBOL_GPL(ip_set_range_to_cidr);

Annotation

• Immediate include surface: `linux/export.h`, `linux/netfilter/ipset/pfxlen.h`.
• Detected declarations: `function ip_set_range_to_cidr`, `export ip_set_netmask_map`, `export ip_set_hostmask_map`, `export ip_set_range_to_cidr`.
• 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.