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authorNeale Ranns <nranns@cisco.com>2019-12-31 05:13:14 +0000
committerDamjan Marion <dmarion@me.com>2020-01-30 20:12:19 +0000
commite5b94dded0dfd7258d5fd0f4ef897d9ccb48715b (patch)
tree819c62a17acf0b234a76c8eef2f00e944e1da8b3 /src/vnet/tunnel
parent9ace36d0f9b04e2d4db410607ee33a8e72ef00c5 (diff)
gre: Tunnel encap/decap flags
Type: feature common funcitons across IP-in-IP and GRE tunnels for encap/decap functions Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I325b66824878d843af167adfe5a7a96b0ab90566
Diffstat (limited to 'src/vnet/tunnel')
-rw-r--r--src/vnet/tunnel/tunnel_dp.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/vnet/tunnel/tunnel_dp.h b/src/vnet/tunnel/tunnel_dp.h
new file mode 100644
index 00000000000..3e3a81307f1
--- /dev/null
+++ b/src/vnet/tunnel/tunnel_dp.h
@@ -0,0 +1,104 @@
+/*
+ * 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:
+ */