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packet-netlink-ovs_flow.h
1/* packet-netlink-ovs_flow.h
2 * Public entry points for reusing the ovs_flow key/action/tunnel-key
3 * dissectors from other dissectors (e.g. ovs_packet upcalls).
4 *
5 * Copyright 2026, Red Hat Inc.
6 * By Timothy Redaelli <tredaelli@redhat.com>
7 *
8 * Wireshark - Network traffic analyzer
9 * By Gerald Combs <gerald@wireshark.org>
10 * Copyright 1998 Gerald Combs
11 *
12 * SPDX-License-Identifier: GPL-2.0-or-later
13 */
14
15#ifndef __PACKET_NETLINK_OVS_FLOW_H__
16#define __PACKET_NETLINK_OVS_FLOW_H__
17
18#include "packet-netlink.h"
19
20/*
21 * Dissect an OVS_FLOW_ATTR_KEY / OVS_FLOW_ATTR_MASK attribute payload.
22 * pinfo is required so that string fields can be allocated from the
23 * per-packet memory pool.
24 */
25 int ovs_flow_dissect_key(tvbuff_t *tvb, packet_info *pinfo,
26 struct packet_netlink_data *nl_data, proto_tree *tree,
27 int offset, int len);
28
29/*
30 * Dissect an OVS_FLOW_ATTR_ACTIONS attribute payload.
31 */
32 int ovs_flow_dissect_actions(tvbuff_t *tvb, packet_info *pinfo,
33 struct packet_netlink_data *nl_data, proto_tree *tree,
34 int offset, int len);
35
36/*
37 * Dissect a tunnel-key attribute payload (OVS_TUNNEL_KEY_ATTR_* stream),
38 * used for OVS_PACKET_ATTR_EGRESS_TUN_KEY.
39 */
40 int ovs_flow_dissect_tunnel_key(tvbuff_t *tvb, packet_info *pinfo,
41 struct packet_netlink_data *nl_data, proto_tree *tree,
42 int offset, int len);
43
44#endif /* __PACKET_NETLINK_OVS_FLOW_H__ */
45
46/*
47 * Editor modelines - https://www.wireshark.org/tools/modelines.html
48 *
49 * Local variables:
50 * c-basic-offset: 8
51 * tab-width: 8
52 * indent-tabs-mode: t
53 * End:
54 *
55 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
56 * :indentSize=8:tabSize=8:noTabs=false:
57 */
_packet_info
Definition packet_info.h:43
_proto_node
Definition proto.h:907
packet_netlink_data
Definition packet-netlink.h:98
tvbuff
Definition tvbuff-int.h:36