include/net/flow_offload.h

File Facts

System

Linux kernel

Corpus path

include/net/flow_offload.h

Extension

.h

Size

20679 bytes

Lines

748

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/kernel.h
• linux/list.h
• linux/netlink.h
• net/flow_dissector.h

Detected Declarations

• struct flow_match
• struct flow_match_meta
• struct flow_match_basic
• struct flow_match_control
• struct flow_match_eth_addrs
• struct flow_match_vlan
• struct flow_match_arp
• struct flow_match_ipv4_addrs
• struct flow_match_ipv6_addrs
• struct flow_match_ip
• struct flow_match_ports
• struct flow_match_ports_range
• struct flow_match_icmp
• struct flow_match_tcp
• struct flow_match_ipsec
• struct flow_match_mpls
• struct flow_match_enc_keyid
• struct flow_match_enc_opts
• struct flow_match_ct
• struct flow_match_pppoe
• struct flow_match_l2tpv3
• struct flow_rule
• struct flow_action_cookie
• struct flow_action_police
• struct flow_action_entry
• struct flow_action
• struct flow_rule
• struct flow_stats
• struct flow_block
• struct netlink_ext_ack
• struct flow_block_offload
• struct flow_block_cb
• struct flow_block_indr
• struct flow_block_cb
• struct flow_cls_common_offload
• struct flow_cls_offload
• struct flow_offload_action
• enum flow_action_id
• enum flow_action_mangle_base
• enum flow_action_hw_stats_bit
• enum flow_action_hw_stats
• enum flow_block_command
• enum flow_block_binder_type
• enum tc_setup_type
• enum flow_cls_command
• enum offload_act_command
• function flow_action_has_entries
• function flow_offload_has_one_action

Annotated Snippet

struct flow_match {
	struct flow_dissector	*dissector;
	void			*mask;
	void			*key;
};

struct flow_match_meta {
	struct flow_dissector_key_meta *key, *mask;
};

struct flow_match_basic {
	struct flow_dissector_key_basic *key, *mask;
};

struct flow_match_control {
	struct flow_dissector_key_control *key, *mask;
};

struct flow_match_eth_addrs {
	struct flow_dissector_key_eth_addrs *key, *mask;
};

struct flow_match_vlan {
	struct flow_dissector_key_vlan *key, *mask;
};

struct flow_match_arp {
	struct flow_dissector_key_arp *key, *mask;
};

struct flow_match_ipv4_addrs {
	struct flow_dissector_key_ipv4_addrs *key, *mask;
};

struct flow_match_ipv6_addrs {
	struct flow_dissector_key_ipv6_addrs *key, *mask;
};

struct flow_match_ip {
	struct flow_dissector_key_ip *key, *mask;
};

struct flow_match_ports {
	struct flow_dissector_key_ports *key, *mask;
};

struct flow_match_ports_range {
	struct flow_dissector_key_ports_range *key, *mask;
};

struct flow_match_icmp {
	struct flow_dissector_key_icmp *key, *mask;
};

struct flow_match_tcp {
	struct flow_dissector_key_tcp *key, *mask;
};

struct flow_match_ipsec {
	struct flow_dissector_key_ipsec *key, *mask;
};

struct flow_match_mpls {
	struct flow_dissector_key_mpls *key, *mask;
};

struct flow_match_enc_keyid {
	struct flow_dissector_key_keyid *key, *mask;
};

struct flow_match_enc_opts {
	struct flow_dissector_key_enc_opts *key, *mask;
};

struct flow_match_ct {
	struct flow_dissector_key_ct *key, *mask;
};

struct flow_match_pppoe {
	struct flow_dissector_key_pppoe *key, *mask;
};

struct flow_match_l2tpv3 {
	struct flow_dissector_key_l2tpv3 *key, *mask;
};

struct flow_rule;

void flow_rule_match_meta(const struct flow_rule *rule,
			  struct flow_match_meta *out);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/list.h`, `linux/netlink.h`, `net/flow_dissector.h`.
• Detected declarations: `struct flow_match`, `struct flow_match_meta`, `struct flow_match_basic`, `struct flow_match_control`, `struct flow_match_eth_addrs`, `struct flow_match_vlan`, `struct flow_match_arp`, `struct flow_match_ipv4_addrs`, `struct flow_match_ipv6_addrs`, `struct flow_match_ip`.
• 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.