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/*
* tunnel_dp.h: data-plane functions tunnels.
*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __TUNNEL_DP_H__
#define __TUNNEL_DP_H__
static_always_inline void
tunnel_encap_fixup_4o4 (tunnel_encap_decap_flags_t flags,
const ip4_header_t * inner, ip4_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip4_header_set_dscp (outer, ip4_header_get_dscp (inner));
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip4_header_set_ecn (outer, ip4_header_get_ecn (inner));
if ((flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
ip4_header_get_df (inner))
ip4_header_set_df (outer);
}
static_always_inline void
tunnel_encap_fixup_6o4 (tunnel_encap_decap_flags_t flags,
const ip6_header_t * inner, ip4_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip4_header_set_dscp (outer, ip6_dscp_network_order (inner));
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip4_header_set_ecn (outer, ip6_ecn_network_order ((inner)));
}
static_always_inline void
tunnel_encap_fixup_6o6 (tunnel_encap_decap_flags_t flags,
const ip6_header_t * inner, ip6_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip6_set_dscp_network_order (outer, ip6_dscp_network_order (inner));
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip6_set_ecn_network_order (outer, ip6_ecn_network_order (inner));
}
static_always_inline void
tunnel_encap_fixup_4o6 (tunnel_encap_decap_flags_t flags,
const ip4_header_t * inner, ip6_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
ip6_set_dscp_network_order (outer, ip4_header_get_dscp (inner));
if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
ip6_set_ecn_network_order (outer, ip4_header_get_ecn (inner));
}
static_always_inline void
tunnel_decap_fixup_4o6 (tunnel_encap_decap_flags_t flags,
ip4_header_t * inner, const ip6_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_DECAP_COPY_ECN)
ip4_header_set_ecn_w_chksum (inner, ip6_ecn_network_order (outer));
}
static_always_inline void
tunnel_decap_fixup_6o6 (tunnel_encap_decap_flags_t flags,
ip6_header_t * inner, const ip6_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_DECAP_COPY_ECN)
ip6_set_ecn_network_order (inner, ip6_ecn_network_order (outer));
}
static_always_inline void
tunnel_decap_fixup_6o4 (tunnel_encap_decap_flags_t flags,
ip6_header_t * inner, const ip4_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_DECAP_COPY_ECN)
ip6_set_ecn_network_order (inner, ip4_header_get_ecn (outer));
}
static_always_inline void
tunnel_decap_fixup_4o4 (tunnel_encap_decap_flags_t flags,
ip4_header_t * inner, const ip4_header_t * outer)
{
if (flags & TUNNEL_ENCAP_DECAP_FLAG_DECAP_COPY_ECN)
ip4_header_set_ecn_w_chksum (inner, ip4_header_get_ecn (outer));
}
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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