1 /* Hey Emacs use -*- mode: C -*- */
3 * Copyright (c) 2019 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 option version = "1.0.0";
19 * Flags controlling tunnel behaviour
21 enum tunnel_encap_decap_flags : u8
23 TUNNEL_API_ENCAP_DECAP_FLAG_NONE = 0,
24 /** at encap, copy the DF bit of the payload into the tunnel header */
25 TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DF = 0x1,
26 /** at encap, set the DF bit in the tunnel header */
27 TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_SET_DF = 0x2,
28 /** at encap, copy the DSCP bits of the payload into the tunnel header */
29 TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP = 0x4,
30 /** at encap, copy the ECN bit of the payload into the tunnel header */
31 TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN = 0x8,
32 /** at decap, copy the ECN bit of the tunnel header into the payload */
33 TUNNEL_API_ENCAP_DECAP_FLAG_DECAP_COPY_ECN = 0x10,
34 /** at encap, compute flow hash on the inner packet for more entropy */
35 TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_INNER_HASH = 0x20 [backwards_compatible],
44 TUNNEL_API_MODE_P2P = 0,
51 * eval: (c-set-style "gnu")