rename target/linux/package/openwrt to base-files

[openwrt/svn-archive/archive.git] / openwrt / target / linux / package / base-files / include / proto / ethernet.h

diff --git a/openwrt/target/linux/package/base-files/include/proto/ethernet.h b/openwrt/target/linux/package/base-files/include/proto/ethernet.h
new file mode 100644 (file)
index 0000000..173464a
--- /dev/null
+++ b/openwrt/target/linux/package/base-files/include/proto/ethernet.h
@@ -0,0 +1,179 @@
+/*******************************************************************************
+ * $Id$
+ * Copyright 2004, Broadcom Corporation      
+ * All Rights Reserved.      
+ *       
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY      
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM      
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS      
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.      
+ * From FreeBSD 2.2.7: Fundamental constants relating to ethernet.
+ ******************************************************************************/
+
+#ifndef _NET_ETHERNET_H_           /* use native BSD ethernet.h when available */
+#define _NET_ETHERNET_H_
+
+#ifndef _TYPEDEFS_H_
+#include "typedefs.h"
+#endif
+
+#if defined(__GNUC__)
+#define        PACKED  __attribute__((packed))
+#else
+#define        PACKED
+#endif
+
+/*
+ * The number of bytes in an ethernet (MAC) address.
+ */
+#ifndef ETHER_ADDR_LEN
+#define        ETHER_ADDR_LEN          6
+#endif
+
+/*
+ * The number of bytes in the type field.
+ */
+#ifndef        ETHER_TYPE_LEN
+#define        ETHER_TYPE_LEN          2
+#endif
+
+/*
+ * The number of bytes in the trailing CRC field.
+ */
+#ifndef        ETHER_CRC_LEN
+#define        ETHER_CRC_LEN           4
+#endif
+
+/*
+ * The length of the combined header.
+ */
+#ifndef        ETHER_HDR_LEN
+#define        ETHER_HDR_LEN           (ETHER_ADDR_LEN*2+ETHER_TYPE_LEN)
+#endif
+
+/*
+ * The minimum packet length.
+ */
+#ifndef ETHER_MIN_LEN
+#define        ETHER_MIN_LEN           64
+#endif
+
+/*
+ * The minimum packet user data length.
+ */
+#ifndef ETHER_MIN_DATA
+#define        ETHER_MIN_DATA          46
+#endif
+
+/*
+ * The maximum packet length.
+ */
+#ifndef ETHER_MAX_LEN
+#define        ETHER_MAX_LEN           1518
+#endif
+
+/*
+ * The maximum packet user data length.
+ */
+#define        ETHER_MAX_DATA          1500
+
+/*
+ * Used to uniquely identify a 802.1q VLAN-tagged header.
+ */
+#define        VLAN_TAG                        0x8100
+
+/*
+ * Located after dest & src address in ether header.
+ */
+#define VLAN_FIELDS_OFFSET             (ETHER_ADDR_LEN * 2)
+
+/*
+ * 4 bytes of vlan field info.
+ */
+#define VLAN_FIELDS_SIZE               4
+
+/* location of bits in 16-bit vlan fields */
+#define VLAN_PRI_SHIFT         13      /* user priority */
+#define VLAN_CFI_SHIFT         12      /* canonical format indicator bit */
+
+/* 3 bits of priority */
+#define VLAN_PRI_MASK                  7
+/* 12 bits of vlan identfier (VID) */
+#define VLAN_VID_MASK          0xFFF   /* VLAN identifier (VID) field */
+
+struct  vlan_tags {
+       uint16  tag_type;       /* 0x8100 for VLAN */
+       uint16  tag_control;    /* prio | cfi | vid */
+} PACKED ;
+
+/* 802.1X ethertype */
+
+#define        ETHER_TYPE_IP           0x0800          /* IP */
+#define        ETHER_TYPE_BRCM         0x886c          /* Broadcom Corp. */
+#define        ETHER_TYPE_802_1X       0x888e          /* 802.1x */
+
+#define        ETHER_BRCM_SUBTYPE_LEN  4               /* Broadcom 4byte subtype follows ethertype */
+#define        ETHER_BRCM_CRAM         0x1             /* Broadcom subtype cram protocol */
+
+/*
+ * A macro to validate a length with
+ */
+#define        ETHER_IS_VALID_LEN(foo) \
+       ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
+
+#ifndef __NET_ETHERNET_H
+#ifndef __INCif_etherh     /* Quick and ugly hack for VxWorks */
+/*
+ * Structure of a 10Mb/s Ethernet header.
+ */
+struct ether_header {
+       uint8   ether_dhost[ETHER_ADDR_LEN];
+       uint8   ether_shost[ETHER_ADDR_LEN];
+       uint16  ether_type;
+} PACKED ;
+
+/*
+ * Structure of a 48-bit Ethernet address.
+ */
+struct ether_addr {
+       uint8 octet[ETHER_ADDR_LEN];
+} PACKED ;
+#endif
+#endif
+
+/*
+ * Takes a pointer, returns true if a 48-bit multicast address
+ * (including broadcast, since it is all ones)
+ */
+#define ETHER_ISMULTI(ea) (((uint8 *)(ea))[0] & 1)
+
+/*
+ * Takes a pointer, returns true if a 48-bit broadcast (all ones)
+ */
+#define ETHER_ISBCAST(ea) ((((uint8 *)(ea))[0] &               \
+                           ((uint8 *)(ea))[1] &                \
+                           ((uint8 *)(ea))[2] &                \
+                           ((uint8 *)(ea))[3] &                \
+                           ((uint8 *)(ea))[4] &                \
+                           ((uint8 *)(ea))[5]) == 0xff)
+
+static const struct ether_addr ether_bcast = {{255, 255, 255, 255, 255, 255}};
+
+/*
+ * Takes a pointer, returns true if a 48-bit null address (all zeros)
+ */
+#define ETHER_ISNULLADDR(ea) ((((uint8 *)(ea))[0] |            \
+                           ((uint8 *)(ea))[1] |                \
+                           ((uint8 *)(ea))[2] |                \
+                           ((uint8 *)(ea))[3] |                \
+                           ((uint8 *)(ea))[4] |                \
+                           ((uint8 *)(ea))[5]) == 0)
+
+/* Differentiated Services Codepoint - lower 6 bits of tos in iphdr */
+#define        DSCP_PRI_MASK           0x3F            /* bits 0-6 */
+#define        DSCP_WME_PRI_MASK       0x38            /* bits 3-6 */
+#define        DSCP_WME_PRI_SHIFT      3
+
+#undef PACKED
+
+#endif /* _NET_ETHERNET_H_ */