/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * 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. 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Fundamental constants relating to ethernet.
#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>
*/
__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 */
projects / apple / xnu.git / blobdiff