From 7cd468a3d7dee7d6c92f69a0bb7061ae208ec727 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Mon, 19 Dec 2016 23:05:39 +0100 Subject: Reorganize source tree to use single autotools instance Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion --- src/vnet/ethernet/packet.h | 152 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 src/vnet/ethernet/packet.h (limited to 'src/vnet/ethernet/packet.h') diff --git a/src/vnet/ethernet/packet.h b/src/vnet/ethernet/packet.h new file mode 100644 index 00000000000..964cf638101 --- /dev/null +++ b/src/vnet/ethernet/packet.h @@ -0,0 +1,152 @@ +/* + * 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. + */ +/* + * ethernet/packet.h: ethernet packet format. + * + * Copyright (c) 2008 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. + */ + +#ifndef included_ethernet_packet_h +#define included_ethernet_packet_h + +typedef enum +{ +#define ethernet_type(n,s) ETHERNET_TYPE_##s = n, +#include +#undef ethernet_type +} ethernet_type_t; + +typedef struct +{ + /* Source/destination address. */ + u8 dst_address[6]; + u8 src_address[6]; + + /* Ethernet type. */ + u16 type; +} ethernet_header_t; + +#define ETHERNET_ADDRESS_UNICAST 0 +#define ETHERNET_ADDRESS_MULTICAST 1 + +/* I/G bit: individual (unicast)/group (broadcast/multicast). */ +always_inline uword +ethernet_address_cast (u8 * a) +{ + return (a[0] >> 0) & 1; +} + +always_inline uword +ethernet_address_is_locally_administered (u8 * a) +{ + return (a[0] >> 1) & 1; +} + +always_inline void +ethernet_address_set_locally_administered (u8 * a) +{ + a[0] |= 1 << 1; +} + +/* For VLAN ethernet type. */ +typedef struct +{ + /* 3 bit priority, 1 bit CFI and 12 bit vlan id. */ + u16 priority_cfi_and_id; + +#define ETHERNET_N_VLAN (1 << 12) + + /* Inner ethernet type. */ + u16 type; +} ethernet_vlan_header_t; + + +/* VLAN with ethertype first and vlan id second */ +typedef struct +{ + /* vlan type */ + u16 type; + + /* 3 bit priority, 1 bit CFI and 12 bit vlan id. */ + u16 priority_cfi_and_id; +} ethernet_vlan_header_tv_t; + +/* PBB header with B-TAG - backbone VLAN indicator and I-TAG - service encapsulation */ +typedef struct +{ + /* Backbone source/destination address. */ + u8 b_dst_address[6]; + u8 b_src_address[6]; + + /* B-tag */ + u16 b_type; + /* 3 bit priority, 1 bit DEI and 12 bit vlan id */ + u16 priority_dei_id; + + /* I-tag */ + u16 i_type; + /* 3 bit priority, 1 bit DEI, 1 bit UCA, 3 bit RES and 24 bit I_SID (service identifier) */ + u32 priority_dei_uca_res_sid; + +#define ETHERNET_N_PBB (1 << 24) +} ethernet_pbb_header_t; + +/* *INDENT-OFF* */ +typedef CLIB_PACKED (struct +{ + /* Backbone source/destination address. */ + u8 b_dst_address[6]; + u8 b_src_address[6]; + + /* B-tag */ + u16 b_type; + /* 3 bit priority, 1 bit DEI and 12 bit vlan id */ + u16 priority_dei_id; + + /* I-tag */ + u16 i_type; + /* 3 bit priority, 1 bit DEI, 1 bit UCA, 3 bit RES and 24 bit I_SID (service identifier) */ + u32 priority_dei_uca_res_sid; +}) ethernet_pbb_header_packed_t; +/* *INDENT-ON* */ + +#endif /* included_ethernet_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg