diff options
author | sreejith <sreejith.surendrannair@linaro.org> | 2017-03-29 01:15:02 -0400 |
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committer | sreejith <sreejith.surendrannair@linaro.org> | 2017-03-29 02:23:59 -0400 |
commit | a23197980e40d4d9414bcfaf59005a1dc2a89251 (patch) | |
tree | da3fc5410a9cda99e05d2e0f6dae06072a0c50b8 /vpp/vnet/vnet/gre/packet.h | |
parent | 746b57564deede624261ab8a96c94f562f24d22c (diff) |
Added vpp intial source code from master branch 17.01.1
Change-Id: I81bdace6f330825a1746a853766779dfb24765fd
Signed-off-by: sreejith <sreejith.surendrannair@linaro.org>
Diffstat (limited to 'vpp/vnet/vnet/gre/packet.h')
-rw-r--r-- | vpp/vnet/vnet/gre/packet.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/vpp/vnet/vnet/gre/packet.h b/vpp/vnet/vnet/gre/packet.h new file mode 100644 index 00000000..cc2ccda9 --- /dev/null +++ b/vpp/vnet/vnet/gre/packet.h @@ -0,0 +1,55 @@ +#ifndef included_vnet_gre_packet_h +#define included_vnet_gre_packet_h + +/* + * GRE packet format + * + * Copyright (c) 2012 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. + */ + +#define foreach_gre_protocol \ +_ (0x0800, ip4) \ +_ (0x86DD, ip6) \ +_ (0x6558, teb) \ +_ (0x0806, arp) \ +_ (0x8847, mpls_unicast) \ +_ (0x894F, nsh) + +typedef enum { +#define _(n,f) GRE_PROTOCOL_##f = n, + foreach_gre_protocol +#undef _ +} gre_protocol_t; + +typedef struct { + /* flags and version */ + u16 flags_and_version; + /* unimplemented at the moment */ +#define GRE_FLAGS_CHECKSUM (1 << 15) + + /* deprecated, according to rfc2784 */ +#define GRE_FLAGS_ROUTING (1 << 14) +#define GRE_FLAGS_KEY (1 << 13) +#define GRE_FLAGS_SEQUENCE (1 << 12) +#define GRE_FLAGS_STRICT_SOURCE_ROUTE (1 << 11) + + /* version 1 is PPTP which we don't support */ +#define GRE_SUPPORTED_VERSION 0 +#define GRE_VERSION_MASK 0x7 + + /* 0x800 for ip4, etc. */ + u16 protocol; +} gre_header_t; + +#endif /* included_vnet_gre_packet_h */ |