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Diffstat (limited to 'src/common/include/proto/ethernet.h')
| -rw-r--r-- | src/common/include/proto/ethernet.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/common/include/proto/ethernet.h b/src/common/include/proto/ethernet.h new file mode 100644 index 0000000..09315c9 --- /dev/null +++ b/src/common/include/proto/ethernet.h @@ -0,0 +1,156 @@ +/* + * From FreeBSD 2.2.7: Fundamental constants relating to ethernet. + * + * Copyright (C) 2015, Broadcom Corporation. All Rights Reserved. + * + * 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. + * + * $Id: ethernet.h 370577 2012-11-22 07:55:21Z $ + */ + +#ifndef _NET_ETHERNET_H_ +#define _NET_ETHERNET_H_ + +#ifndef _TYPEDEFS_H_ +#include "typedefs.h" +#endif + +#include <packed_section_start.h> + +#define ETHER_ADDR_LEN 6 + +#define ETHER_TYPE_LEN 2 + +#define ETHER_CRC_LEN 4 + +#define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN) + +#define ETHER_MIN_LEN 64 + +#define ETHER_MIN_DATA 46 + +#define ETHER_MAX_LEN 1518 + +#define ETHER_MAX_DATA 1500 + +#define ETHER_TYPE_MIN 0x0600 +#define ETHER_TYPE_IP 0x0800 +#define ETHER_TYPE_ARP 0x0806 +#define ETHER_TYPE_8021Q 0x8100 +#define ETHER_TYPE_IPV6 0x86dd +#define ETHER_TYPE_BRCM 0x886c +#define ETHER_TYPE_802_1X 0x888e +#define ETHER_TYPE_802_1X_PREAUTH 0x88c7 +#define ETHER_TYPE_WAI 0x88b4 +#define ETHER_TYPE_89_0D 0x890d + +#define ETHER_TYPE_PPP_SES 0x8864 + +#define ETHER_TYPE_IPV6 0x86dd + +#define ETHER_BRCM_SUBTYPE_LEN 4 + +#define ETHER_DEST_OFFSET (0 * ETHER_ADDR_LEN) +#define ETHER_SRC_OFFSET (1 * ETHER_ADDR_LEN) +#define ETHER_TYPE_OFFSET (2 * ETHER_ADDR_LEN) + +#define ETHER_IS_VALID_LEN(foo) \ + ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN) + +#define ETHER_FILL_MCAST_ADDR_FROM_IP(ea, mgrp_ip) { \ + ((uint8 *)ea)[0] = 0x01; \ + ((uint8 *)ea)[1] = 0x00; \ + ((uint8 *)ea)[2] = 0x5e; \ + ((uint8 *)ea)[3] = ((mgrp_ip) >> 16) & 0x7f; \ + ((uint8 *)ea)[4] = ((mgrp_ip) >> 8) & 0xff; \ + ((uint8 *)ea)[5] = ((mgrp_ip) >> 0) & 0xff; \ +} + +#ifndef __INCif_etherh + +BWL_PRE_PACKED_STRUCT struct ether_header { + uint8 ether_dhost[ETHER_ADDR_LEN]; + uint8 ether_shost[ETHER_ADDR_LEN]; + uint16 ether_type; +} BWL_POST_PACKED_STRUCT; + +BWL_PRE_PACKED_STRUCT struct ether_addr { + uint8 octet[ETHER_ADDR_LEN]; +} BWL_POST_PACKED_STRUCT; +#endif + +#define ETHER_SET_LOCALADDR(ea) (((uint8 *)(ea))[0] = (((uint8 *)(ea))[0] | 2)) +#define ETHER_IS_LOCALADDR(ea) (((uint8 *)(ea))[0] & 2) +#define ETHER_CLR_LOCALADDR(ea) (((uint8 *)(ea))[0] = (((uint8 *)(ea))[0] & 0xfd)) +#define ETHER_TOGGLE_LOCALADDR(ea) (((uint8 *)(ea))[0] = (((uint8 *)(ea))[0] ^ 2)) + +#define ETHER_SET_UNICAST(ea) (((uint8 *)(ea))[0] = (((uint8 *)(ea))[0] & ~1)) + +#define ETHER_ISMULTI(ea) (((const uint8 *)(ea))[0] & 1) + +#define eacmp(a, b) ((((const uint16 *)(a))[0] ^ ((const uint16 *)(b))[0]) | \ + (((const uint16 *)(a))[1] ^ ((const uint16 *)(b))[1]) | \ + (((const uint16 *)(a))[2] ^ ((const uint16 *)(b))[2])) + +#define ether_cmp(a, b) eacmp(a, b) + +#define eacopy(s, d) \ +do { \ + ((uint16 *)(d))[0] = ((const uint16 *)(s))[0]; \ + ((uint16 *)(d))[1] = ((const uint16 *)(s))[1]; \ + ((uint16 *)(d))[2] = ((const uint16 *)(s))[2]; \ +} while (0) + +#define ether_copy(s, d) eacopy(s, d) + +#define ether_rcopy(s, d) \ +do { \ + ((uint16 *)(d))[2] = ((uint16 *)(s))[2]; \ + ((uint16 *)(d))[1] = ((uint16 *)(s))[1]; \ + ((uint16 *)(d))[0] = ((uint16 *)(s))[0]; \ +} while (0) + +static const struct ether_addr ether_bcast = {{255, 255, 255, 255, 255, 255}}; +static const struct ether_addr ether_null = {{0, 0, 0, 0, 0, 0}}; +static const struct ether_addr ether_ipv6_mcast = {{0x33, 0x33, 0x00, 0x00, 0x00, 0x01}}; + +#define ETHER_ISBCAST(ea) ((((const uint8 *)(ea))[0] & \ + ((const uint8 *)(ea))[1] & \ + ((const uint8 *)(ea))[2] & \ + ((const uint8 *)(ea))[3] & \ + ((const uint8 *)(ea))[4] & \ + ((const uint8 *)(ea))[5]) == 0xff) +#define ETHER_ISNULLADDR(ea) ((((const uint8 *)(ea))[0] | \ + ((const uint8 *)(ea))[1] | \ + ((const uint8 *)(ea))[2] | \ + ((const uint8 *)(ea))[3] | \ + ((const uint8 *)(ea))[4] | \ + ((const uint8 *)(ea))[5]) == 0) + +#define ETHER_ISNULLDEST(da) ((((const uint16 *)(da))[0] | \ + ((const uint16 *)(da))[1] | \ + ((const uint16 *)(da))[2]) == 0) +#define ETHER_ISNULLSRC(sa) ETHER_ISNULLDEST(sa) + +#define ETHER_MOVE_HDR(d, s) \ +do { \ + struct ether_header t; \ + t = *(struct ether_header *)(s); \ + *(struct ether_header *)(d) = t; \ +} while (0) + +#define ETHER_ISUCAST(ea) ((((uint8 *)(ea))[0] & 0x01) == 0) + +#include <packed_section_end.h> + +#endif |