net/openvswitch/drop.h

Source file repositories/reference/linux-study-clean/net/openvswitch/drop.h

File Facts

System
Linux kernel
Corpus path
net/openvswitch/drop.h
Extension
.h
Size
955 bytes
Lines
42
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef OPENVSWITCH_DROP_H
#define OPENVSWITCH_DROP_H
#include <linux/skbuff.h>
#include <net/dropreason.h>

#define OVS_DROP_REASONS(R)			\
	R(OVS_DROP_LAST_ACTION)		        \
	R(OVS_DROP_ACTION_ERROR)		\
	R(OVS_DROP_EXPLICIT)			\
	R(OVS_DROP_EXPLICIT_WITH_ERROR)		\
	R(OVS_DROP_METER)			\
	R(OVS_DROP_RECURSION_LIMIT)		\
	R(OVS_DROP_DEFERRED_LIMIT)		\
	R(OVS_DROP_FRAG_L2_TOO_LONG)		\
	R(OVS_DROP_FRAG_INVALID_PROTO)		\
	R(OVS_DROP_CONNTRACK)			\
	R(OVS_DROP_IP_TTL)			\
	/* deliberate comment for trailing \ */

enum ovs_drop_reason {
	__OVS_DROP_REASON = SKB_DROP_REASON_SUBSYS_OPENVSWITCH <<
				SKB_DROP_REASON_SUBSYS_SHIFT,
#define ENUM(x) x,
	OVS_DROP_REASONS(ENUM)
#undef ENUM

	OVS_DROP_MAX,
};

static inline void
ovs_kfree_skb_reason(struct sk_buff *skb, enum ovs_drop_reason reason)
{
	kfree_skb_reason(skb, (u32)reason);
}

#endif /* OPENVSWITCH_DROP_H */

Annotation

Implementation Notes