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Diffstat (limited to 'src/vnet/hdlc/packet.h')
-rw-r--r-- | src/vnet/hdlc/packet.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/vnet/hdlc/packet.h b/src/vnet/hdlc/packet.h new file mode 100644 index 00000000000..45e5496fbc8 --- /dev/null +++ b/src/vnet/hdlc/packet.h @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2015 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 included_vnet_hdlc_packet_h +#define included_vnet_hdlc_packet_h + +/* + * HDLC packet format + * + * Copyright (c) 2009 Eliot Dresselhaus + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define foreach_hdlc_protocol \ + _ (0x0800, ip4) \ + _ (0x2000, cdp) \ + _ (0x8035, slarp) \ + _ (0x8847, mpls_unicast) \ + _ (0x8848, mpls_multicast) \ + _ (0x86dd, ip6) \ + _ (0xfefe, osi) + +typedef enum { +#define _(n,f) HDLC_PROTOCOL_##f = n, + foreach_hdlc_protocol +#undef _ +} hdlc_protocol_t; + +typedef struct { + /* Set to 0x0f for unicast; 0x8f for broadcast. */ + u8 address; + + /* Always zero. */ + u8 control; + + /* Layer 3 protocol for this packet. */ + u16 protocol; + + /* Layer 3 payload. */ + u8 payload[0]; +} hdlc_header_t; + +#endif /* included_vnet_hdlc_packet_h */ |