X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/2d21ac55c334faf3a56e5634905ed6987fc787d4..94ff46dc2849db4d43eaaf144872decc522aafb4:/bsd/net/ethernet.h diff --git a/bsd/net/ethernet.h b/bsd/net/ethernet.h index efbf23c0f..c4df50720 100644 --- a/bsd/net/ethernet.h +++ b/bsd/net/ethernet.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2017 Apple Inc. All rights reserved. * * @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 @@ -11,10 +11,10 @@ * 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, @@ -22,7 +22,7 @@ * 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@ */ /* @@ -33,92 +33,135 @@ #ifndef _NET_ETHERNET_H_ #define _NET_ETHERNET_H_ #include -#include /* u_ types */ +#include /* 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) +#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 *); +struct ether_addr *ether_aton(const char *); #ifdef BSD_KERNEL_PRIVATE -extern u_char etherbroadcastaddr[ETHER_ADDR_LEN]; -#endif +extern u_char etherbroadcastaddr[ETHER_ADDR_LEN]; + +#if defined (__arm__) + +#include + +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 ETHER_IS_MULTICAST(addr) (*(addr) & 0x01) /* is address mcast/bcast? */ + #endif /* KERNEL_PRIVATE */ #ifndef KERNEL @@ -129,11 +172,11 @@ extern u_char etherbroadcastaddr[ETHER_ADDR_LEN]; */ __BEGIN_DECLS -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 *); +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 */