X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/55e303ae13a4cf49d70f2294092726f2fffb9ef2..bca245acd4c03fd752d1a45f011ad495e60fe53d:/bsd/net/ethernet.h?ds=sidebyside

diff --git a/bsd/net/ethernet.h b/bsd/net/ethernet.h
index 09c78d9ea..c4df50720 100644
--- a/bsd/net/ethernet.h
+++ b/bsd/net/ethernet.h
@@ -1,17 +1,20 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -19,8 +22,8 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Fundamental constants relating to ethernet.
@@ -30,86 +33,136 @@
 #ifndef _NET_ETHERNET_H_
 #define _NET_ETHERNET_H_
 #include <sys/appleapiopts.h>
+#include <sys/types.h>          /* u_ types */
 
 /*
  * The number of bytes in an ethernet (MAC) address.
  */
-#define	ETHER_ADDR_LEN		6
+#define ETHER_ADDR_LEN          6
 
 /*
  * The number of bytes in the type field.
  */
-#define	ETHER_TYPE_LEN		2
+#define ETHER_TYPE_LEN          2
 
 /*
  * The number of bytes in the trailing CRC field.
  */
-#define	ETHER_CRC_LEN		4
+#define ETHER_CRC_LEN           4
 
 /*
  * The length of the combined header.
  */
-#define	ETHER_HDR_LEN		(ETHER_ADDR_LEN*2+ETHER_TYPE_LEN)
+#define ETHER_HDR_LEN           (ETHER_ADDR_LEN*2+ETHER_TYPE_LEN)
 
 /*
  * The minimum packet length.
  */
-#define	ETHER_MIN_LEN		64
+#define ETHER_MIN_LEN           64
 
 /*
  * The maximum packet length.
  */
-#define	ETHER_MAX_LEN		1518
+#define ETHER_MAX_LEN           1518
+
+/*
+ * Mbuf adjust factor to force 32-bit alignment of IP header.
+ * Drivers should do m_adj(m, ETHER_ALIGN) when setting up a
+ * receive so the upper layers get the IP header properly aligned
+ * past the 14-byte Ethernet header.
+ */
+#define ETHER_ALIGN             2       /* driver adjust for IP hdr alignment */
 
 /*
  * A macro to validate a length with
  */
-#define	ETHER_IS_VALID_LEN(foo)	\
+#define ETHER_IS_VALID_LEN(foo) \
 	((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)
 
 /*
  * Structure of a 10Mb/s Ethernet header.
  */
-struct	ether_header {
-	u_char	ether_dhost[ETHER_ADDR_LEN];
-	u_char	ether_shost[ETHER_ADDR_LEN];
-	u_short	ether_type;
-};
+typedef struct  ether_header {
+	u_char  ether_dhost[ETHER_ADDR_LEN];
+	u_char  ether_shost[ETHER_ADDR_LEN];
+	u_short ether_type;
+} ether_header_t;
 
 /*
  * Structure of a 48-bit Ethernet address.
  */
-struct	ether_addr {
+typedef struct  ether_addr {
 	u_char octet[ETHER_ADDR_LEN];
-};
+} ether_addr_t;
 
 #define ether_addr_octet octet
 
-#define	ETHERTYPE_PUP		0x0200	/* PUP protocol */
-#define	ETHERTYPE_IP		0x0800	/* IP protocol */
-#define ETHERTYPE_ARP		0x0806	/* Addr. resolution protocol */
-#define ETHERTYPE_REVARP	0x8035	/* reverse Addr. resolution protocol */
-#define	ETHERTYPE_VLAN		0x8100	/* IEEE 802.1Q VLAN tagging */
-#define ETHERTYPE_IPV6		0x86dd	/* IPv6 */
-#define	ETHERTYPE_LOOPBACK	0x9000	/* used to test interfaces */
+#define ETHERTYPE_PUP           0x0200  /* PUP protocol */
+#define ETHERTYPE_IP            0x0800  /* IP protocol */
+#define ETHERTYPE_ARP           0x0806  /* Addr. resolution protocol */
+#define ETHERTYPE_REVARP        0x8035  /* reverse Addr. resolution protocol */
+#define ETHERTYPE_VLAN          0x8100  /* IEEE 802.1Q VLAN tagging */
+#define ETHERTYPE_IPV6          0x86dd  /* IPv6 */
+#define ETHERTYPE_PAE           0x888e  /* EAPOL PAE/802.1x */
+#define ETHERTYPE_RSN_PREAUTH   0x88c7  /* 802.11i / RSN Pre-Authentication */
+#define ETHERTYPE_PTP           0x88f7  /* IEEE 1588 Precision Time Protocol */
+#define ETHERTYPE_LOOPBACK      0x9000  /* used to test interfaces */
 /* XXX - add more useful types here */
+#define ETHERTYPE_IEEE802154    0x0809  /* 802.15.4 */
 
 /*
  * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
  * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
  * by an ETHER type (as given above) and then the (variable-length) header.
  */
-#define	ETHERTYPE_TRAIL		0x1000		/* Trailer packet */
-#define	ETHERTYPE_NTRAILER	16
+#define ETHERTYPE_TRAIL         0x1000          /* Trailer packet */
+#define ETHERTYPE_NTRAILER      16
+
+#define ETHERMTU        (ETHER_MAX_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
+#define ETHERMIN        (ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
+
+#ifdef KERNEL_PRIVATE
+/*
+ * The following are used by ethernet interfaces.
+ */
+
+struct  ether_addr *ether_aton(const char *);
+
+#ifdef BSD_KERNEL_PRIVATE
+extern u_char   etherbroadcastaddr[ETHER_ADDR_LEN];
+
+#if defined (__arm__)
+
+#include <string.h>
+
+static __inline__ int
+_ether_cmp(const void * a, const void * b)
+{
+	return memcmp(a, b, ETHER_ADDR_LEN);
+}
+
+#else /* __arm__ */
+
+static __inline__ int
+_ether_cmp(const void * a, const void * b)
+{
+	const u_int16_t * a_s = (const u_int16_t *)a;
+	const u_int16_t * b_s = (const u_int16_t *)b;
+
+	if (a_s[0] != b_s[0]
+	    || a_s[1] != b_s[1]
+	    || a_s[2] != b_s[2]) {
+		return 1;
+	}
+	return 0;
+}
+
+#endif /* __arm__ */
+#endif /* BSD_KERNEL_PRIVATE */
 
-#define	ETHERMTU	(ETHER_MAX_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
-#define	ETHERMIN	(ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
+#define ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */
 
-#ifdef KERNEL
-#ifdef __APPLE_API_PRIVATE
-struct	ether_addr *ether_aton __P((char *));
-#endif /* __APPLE_API_PRIVATE */
-#endif
+#endif /* KERNEL_PRIVATE */
 
 #ifndef KERNEL
 #include <sys/cdefs.h>
@@ -119,10 +172,11 @@ struct	ether_addr *ether_aton __P((char *));
  */
 __BEGIN_DECLS
 
-int	ether_hostton __P((char *, struct ether_addr *));
-int	ether_line __P((char *, struct ether_addr *, char *));
-char 	*ether_ntoa __P((const struct ether_addr *));
-int	ether_ntohost __P((char *, struct ether_addr *));
+int     ether_hostton(const char *, struct ether_addr *);
+int     ether_line(const char *, struct ether_addr *, char *);
+char    *ether_ntoa(const struct ether_addr *);
+struct  ether_addr *ether_aton(const char *);
+int     ether_ntohost(char *, const struct ether_addr *);
 __END_DECLS
 #endif /* !KERNEL */