| /* |
| * Copyright (c) 2010 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _NET_ETHERNET_H_ |
| #define _NET_ETHERNET_H_ |
| |
| #include <linux/if_ether.h> |
| |
| #include <packed_section_start.h> |
| |
| #define ETHER_TYPE_LEN 2 |
| #define ETHER_CRC_LEN 4 |
| #define ETHER_MIN_LEN 64 |
| #define ETHER_MIN_DATA 46 |
| #define ETHER_MAX_LEN 1518 |
| #define ETHER_MAX_DATA 1500 |
| |
| #define ETHER_TYPE_BRCM 0x886c |
| |
| #define ETHER_DEST_OFFSET (0 * ETH_ALEN) |
| #define ETHER_SRC_OFFSET (1 * ETH_ALEN) |
| #define ETHER_TYPE_OFFSET (2 * ETH_ALEN) |
| |
| #define ETHER_IS_VALID_LEN(foo) \ |
| ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN) |
| |
| #define ETHER_FILL_MCAST_ADDR_FROM_IP(ea, mgrp_ip) { \ |
| ((u8 *)ea)[0] = 0x01; \ |
| ((u8 *)ea)[1] = 0x00; \ |
| ((u8 *)ea)[2] = 0x5e; \ |
| ((u8 *)ea)[3] = ((mgrp_ip) >> 16) & 0x7f; \ |
| ((u8 *)ea)[4] = ((mgrp_ip) >> 8) & 0xff; \ |
| ((u8 *)ea)[5] = ((mgrp_ip) >> 0) & 0xff; \ |
| } |
| |
| BWL_PRE_PACKED_STRUCT struct ether_header { |
| u8 ether_dhost[ETH_ALEN]; |
| u8 ether_shost[ETH_ALEN]; |
| u16 ether_type; |
| } BWL_POST_PACKED_STRUCT; |
| |
| BWL_PRE_PACKED_STRUCT struct ether_addr { |
| u8 octet[ETH_ALEN]; |
| } BWL_POST_PACKED_STRUCT; |
| |
| #define ETHER_SET_UNICAST(ea) (((u8 *)(ea))[0] = (((u8 *)(ea))[0] & ~1)) |
| |
| static const struct ether_addr ether_bcast = { {255, 255, 255, 255, 255, 255} }; |
| |
| #define ETHER_MOVE_HDR(d, s) \ |
| do { \ |
| struct ether_header t; \ |
| t = *(struct ether_header *)(s); \ |
| *(struct ether_header *)(d) = t; \ |
| } while (0) |
| |
| #include <packed_section_end.h> |
| |
| #endif /* _NET_ETHERNET_H_ */ |