diff options
Diffstat (limited to 'drivers/net/wireless/bcmdhd/include/proto/ethernet.h')
| -rw-r--r-- | drivers/net/wireless/bcmdhd/include/proto/ethernet.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd/include/proto/ethernet.h b/drivers/net/wireless/bcmdhd/include/proto/ethernet.h new file mode 100644 index 000000000000..2d025502e291 --- /dev/null +++ b/drivers/net/wireless/bcmdhd/include/proto/ethernet.h @@ -0,0 +1,220 @@ +/* + * From FreeBSD 2.2.7: Fundamental constants relating to ethernet. + * + * Copyright (C) 1999-2016, Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2 (the "GPL"), + * available at http://www.broadcom.com/licenses/GPLv2.php, with the + * following added to such license: + * + * As a special exception, the copyright holders of this software give you + * permission to link this software with independent modules, and to copy and + * distribute the resulting executable under terms of your choice, provided that + * you also meet, for each linked independent module, the terms and conditions of + * the license of that module. An independent module is a module which is not + * derived from this software. The special exception does not apply to any + * modifications of the software. + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a license + * other than the GPL, without Broadcom's express prior written consent. + * + * $Id: ethernet.h 403353 2013-05-20 14:05:33Z $ + */ + +#ifndef _NET_ETHERNET_H_ /* use native BSD ethernet.h when available */ +#define _NET_ETHERNET_H_ + +#ifndef _TYPEDEFS_H_ +#include "typedefs.h" +#endif + +/* This marks the start of a packed structure section. */ +#include <packed_section_start.h> + + +/* + * The number of bytes in an ethernet (MAC) address. + */ +#define ETHER_ADDR_LEN 6 + +/* + * The number of bytes in the type field. + */ +#define ETHER_TYPE_LEN 2 + +/* + * The number of bytes in the trailing CRC field. + */ +#define ETHER_CRC_LEN 4 + +/* + * The length of the combined header. + */ +#define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN) + +/* + * The minimum packet length. + */ +#define ETHER_MIN_LEN 64 + +/* + * The minimum packet user data length. + */ +#define ETHER_MIN_DATA 46 + +/* + * The maximum packet length. + */ +#define ETHER_MAX_LEN 1518 + +/* + * The maximum packet user data length. + */ +#define ETHER_MAX_DATA 1500 + +/* ether types */ +#define ETHER_TYPE_MIN 0x0600 /* Anything less than MIN is a length */ +#define ETHER_TYPE_IP 0x0800 /* IP */ +#define ETHER_TYPE_ARP 0x0806 /* ARP */ +#define ETHER_TYPE_8021Q 0x8100 /* 802.1Q */ +#define ETHER_TYPE_IPV6 0x86dd /* IPv6 */ +#define ETHER_TYPE_BRCM 0x886c /* Broadcom Corp. */ +#define ETHER_TYPE_802_1X 0x888e /* 802.1x */ +#ifdef PLC +#define ETHER_TYPE_88E1 0x88e1 /* GIGLE */ +#define ETHER_TYPE_8912 0x8912 /* GIGLE */ +#define ETHER_TYPE_GIGLED 0xffff /* GIGLE */ +#endif /* PLC */ +#define ETHER_TYPE_802_1X_PREAUTH 0x88c7 /* 802.1x preauthentication */ +#define ETHER_TYPE_WAI 0x88b4 /* WAI */ +#define ETHER_TYPE_89_0D 0x890d /* 89-0d frame for TDLS */ + +#define ETHER_TYPE_PPP_SES 0x8864 /* PPPoE Session */ + +#define ETHER_TYPE_IAPP_L2_UPDATE 0x6 /* IAPP L2 update frame */ + +/* Broadcom subtype follows ethertype; First 2 bytes are reserved; Next 2 are subtype; */ +#define ETHER_BRCM_SUBTYPE_LEN 4 /* Broadcom 4 byte subtype */ + +/* ether header */ +#define ETHER_DEST_OFFSET (0 * ETHER_ADDR_LEN) /* dest address offset */ +#define ETHER_SRC_OFFSET (1 * ETHER_ADDR_LEN) /* src address offset */ +#define ETHER_TYPE_OFFSET (2 * ETHER_ADDR_LEN) /* ether type offset */ + +/* + * A macro to validate a length with + */ +#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 /* Quick and ugly hack for VxWorks */ +/* + * Structure of a 10Mb/s Ethernet header. + */ +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; + +/* + * Structure of a 48-bit Ethernet address. + */ +BWL_PRE_PACKED_STRUCT struct ether_addr { + uint8 octet[ETHER_ADDR_LEN]; +} BWL_POST_PACKED_STRUCT; +#endif /* !__INCif_etherh Quick and ugly hack for VxWorks */ + +/* + * Takes a pointer, set, test, clear, toggle locally admininistered + * address bit in the 48-bit Ethernet address. + */ +#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)) + +/* Takes a pointer, marks unicast address bit in the MAC address */ +#define ETHER_SET_UNICAST(ea) (((uint8 *)(ea))[0] = (((uint8 *)(ea))[0] & ~1)) + +/* + * Takes a pointer, returns true if a 48-bit multicast address + * (including broadcast, since it is all ones) + */ +#define ETHER_ISMULTI(ea) (((const uint8 *)(ea))[0] & 1) + + +/* compare two ethernet addresses - assumes the pointers can be referenced as shorts */ +#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) + +/* copy an ethernet address - assumes the pointers can be referenced as shorts */ +#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) + +/* Copy an ethernet address in reverse order */ +#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) + +/* This marks the end of a packed structure section. */ +#include <packed_section_end.h> + +#endif /* _NET_ETHERNET_H_ */ |