if_ether.h
资源名称:ixp425BSP.rar [点击查看]
上传用户:luoyougen
上传日期:2008-05-12
资源大小:23136k
文件大小:11k
源码类别:
VxWorks
开发平台:
C/C++
- /* if_ether.h - network interface Ethernet header file */
- /* Copyright 1984 - 2002 Wind River Systems, Inc. */
- /*
- * Copyright (c) 1982, 1986, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)if_ether.h 8.1 (Berkeley) 6/10/93
- */
- /*
- modification history
- --------------------
- 01h,24may02,vvv replaced GNU_PACKED with _WRS_PACK_ALIGN
- 01g,23may02,vvv added SH to GNU_PACKED list
- 01f,10oct01,rae merge from truestack ver 01h base o1d
- SPRs 63006, 69112
- 01e,22jan01,scm dealt with ARM alignment issue
- 01d,27may99,pul added ether_tag_header and SIZEOF_TAG_ETHERHEADER
- 01c,29apr99,pul Upgraded NPT phase3 code to tor2.0.0
- 01b,08Nov98,vin changed the ordering of arguments to ipEtherResolveRtn
- 01a,03mar96,vin created from BSD4.4 stuff,integrated with 03l of if_ether.h
- */
- #ifndef __INCif_etherh
- #define __INCif_etherh
- #ifdef __cplusplus
- extern "C" {
- #endif
- #include "netinet/in.h"
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 1 /* tell gcc960 not to optimize alignments */
- #endif /* CPU_FAMILY==I960 */
- #if ((defined __arm__) || (defined __sh__))
- #define ETHER_PACKED _WRS_PACK_ALIGN(1)
- #else
- #define ETHER_PACKED
- #endif
- /*
- * Ethernet address - 6 octets
- * this is only used by the ethers(3) functions.
- */
- struct ether_addr {
- u_char ether_addr_octet[6];
- } ETHER_PACKED;
- /*
- * Structure of a 10Mb/s Ethernet header.
- */
- struct ether_header {
- u_char ether_dhost[6];
- u_char ether_shost[6];
- u_short ether_type;
- } ETHER_PACKED;
- /* Ether header for tagged frames */
- struct ether_tag_header {
- u_char ether_dhost[6];
- u_char ether_shost[6];
- u_char etherTag[4];
- u_short ether_type;
- };
- #define ETHERTYPE_PUP 0x0200 /* PUP protocol */
- #define ETHERTYPE_IP 0x0800 /* IP protocol */
- #define ETHERTYPE_ARP 0x0806 /* address resolution protocol */
- #define ETHERTYPE_REVARP 0x8035 /* reverse addr resolution protocol */
- /*
- * 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 ETHERMTU 1500
- #define ETHERMIN (60-14)
- /*
- * for compilers that have 4-bytes structure alignment rule,
- * it is understood that sizeof (ether_header) is 0x10
- */
- #define SIZEOF_ETHERHEADER 0xe
- /* For tagged Ethernet headers */
- #define SIZEOF_TAG_ETHERHEADER 0x12
- /* minimal size of an ethernet frame including the headers supported
- * by most ethernet chips.
- */
- #define ETHERSMALL 60
- /*
- * Macro to map an IP multicast address to an Ethernet multicast address.
- * The high-order 25 bits of the Ethernet address are statically assigned,
- * and the low-order 23 bits are taken from the low end of the IP address.
- */
- #define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr)
- /* struct in_addr *ipaddr; */
- /* u_char enaddr[6]; */
- {
- (enaddr)[0] = 0x01;
- (enaddr)[1] = 0x00;
- (enaddr)[2] = 0x5e;
- (enaddr)[3] = ((u_char *)ipaddr)[1] & 0x7f;
- (enaddr)[4] = ((u_char *)ipaddr)[2];
- (enaddr)[5] = ((u_char *)ipaddr)[3];
- }
- /*
- * Macro to test whether the given ethernet address is multicast
- */
- #define ETHER_MULTICAST(enaddr)
- ((enaddr)[0] == 0x1) && ((enaddr)[1] == 0x0) && ((enaddr)[2] == 0x5e)
- /*
- * Ethernet Address Resolution Protocol.
- *
- * See RFC 826 for protocol description. Structure below is adapted
- * to resolving internet addresses. Field names used correspond to
- * RFC 826.
- */
- struct ether_arp {
- struct arphdr ea_hdr; /* fixed-size header */
- u_char arp_sha[6]; /* sender hardware address */
- u_char arp_spa[4]; /* sender protocol address */
- u_char arp_tha[6]; /* target hardware address */
- u_char arp_tpa[4]; /* target protocol address */
- } ETHER_PACKED;
- #define arp_hrd ea_hdr.ar_hrd
- #define arp_pro ea_hdr.ar_pro
- #define arp_hln ea_hdr.ar_hln
- #define arp_pln ea_hdr.ar_pln
- #define arp_op ea_hdr.ar_op
- /*
- * Structure shared between the ethernet driver modules and
- * the address resolution code. For example, each ec_softc or il_softc
- * begins with this structure.
- */
- struct arpcom {
- struct ifnet ac_if; /* network-visible interface */
- u_char ac_enaddr[6]; /* ethernet hardware address */
- struct in_addr ac_ipaddr; /* copy of ip address- XXX */
- struct ether_multi *ac_multiaddrs; /* list of ether multicast addrs */
- int ac_multicnt; /* length of ac_multiaddrs list */
- } ETHER_PACKED;
- /* XXX should be removed */
- /*
- * Internet to ethernet address resolution table.
- */
- struct arptab {
- struct in_addr at_iaddr; /* internet address */
- u_char at_enaddr[6]; /* ethernet address */
- u_char at_timer; /* minutes since last reference */
- u_char at_flags; /* flags */
- struct mbuf *at_hold; /* last packet until resolved/timeout */
- } ETHER_PACKED;
- struct llinfo_arp {
- struct llinfo_arp *la_next;
- struct llinfo_arp *la_prev;
- struct rtentry *la_rt;
- struct mbuf *la_hold; /* last packet until resolved/timeout */
- long la_asked; /* last time we QUERIED for this addr */
- #define la_timer la_rt->rt_rmx.rmx_expire /* deletion time in seconds */
- } ETHER_PACKED;
- struct sockaddr_inarp {
- u_char sin_len;
- u_char sin_family;
- u_short sin_port;
- struct in_addr sin_addr;
- struct in_addr sin_srcaddr;
- u_short sin_tos;
- u_short sin_other;
- #define SIN_PROXY 1
- } ETHER_PACKED;
- /*
- * IP and ethernet specific routing flags
- */
- #define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
- #define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
- /*
- * Ethernet multicast address structure. There is one of these for each
- * multicast address or range of multicast addresses that we are supposed
- * to listen to on a particular interface. They are kept in a linked list,
- * rooted in the interface's arpcom structure. (This really has nothing to
- * do with ARP, or with the Internet address family, but this appears to be
- * the minimally-disrupting place to put it.)
- */
- struct ether_multi {
- u_char enm_addrlo[6]; /* low or only address of range */
- u_char enm_addrhi[6]; /* high or only address of range */
- struct arpcom *enm_ac; /* back pointer to arpcom */
- u_int enm_refcount; /* no. claims to this addr/range */
- struct ether_multi *enm_next; /* ptr to next ether_multi */
- } ETHER_PACKED;
- /*
- * Structure used by macros below to remember position when stepping through
- * all of the ether_multi records.
- */
- struct ether_multistep {
- struct ether_multi *e_enm;
- } ETHER_PACKED;
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 0 /* turn off alignment requirement */
- #endif /* CPU_FAMILY==I960 */
- /*
- * Macro for looking up the ether_multi record for a given range of Ethernet
- * multicast addresses connected to a given arpcom structure. If no matching
- * record is found, "enm" returns NULL.
- */
- #define ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm)
- /* u_char addrlo[6]; */
- /* u_char addrhi[6]; */
- /* struct arpcom *ac; */
- /* struct ether_multi *enm; */
- {
- for ((enm) = (ac)->ac_multiaddrs;
- (enm) != NULL &&
- (bcmp((char *)(enm)->enm_addrlo, (char *)(addrlo), 6) != 0 ||
- bcmp((char *)(enm)->enm_addrhi, (char *)(addrhi), 6) != 0);
- (enm) = (enm)->enm_next);
- }
- /*
- * Macro to step through all of the ether_multi records, one at a time.
- * The current position is remembered in "step", which the caller must
- * provide. ETHER_FIRST_MULTI(), below, must be called to initialize "step"
- * and get the first record. Both macros return a NULL "enm" when there
- * are no remaining records.
- */
- #define ETHER_NEXT_MULTI(step, enm)
- /* struct ether_multistep step; */
- /* struct ether_multi *enm; */
- {
- if (((enm) = (step).e_enm) != NULL)
- (step).e_enm = (enm)->enm_next;
- }
- #define ETHER_FIRST_MULTI(step, ac, enm)
- /* struct ether_multistep step; */
- /* struct arpcom *ac; */
- /* struct ether_multi *enm; */
- {
- (step).e_enm = (ac)->ac_multiaddrs;
- ETHER_NEXT_MULTI((step), (enm));
- }
- extern u_char etherbroadcastaddr[6];
- extern u_char ether_ipmulticast_min[6];
- extern u_char ether_ipmulticast_max[6];
- extern struct ifqueue arpintrq;
- #ifndef VIRTUAL_STACK
- extern struct llinfo_arp llinfo_arp; /* head of the llinfo queue */
- #endif /* VIRTUAL_STACK */
- extern struct llinfo_arp *arptnew (struct in_addr *);
- extern void arpwhohas (struct arpcom *, struct in_addr *);
- #ifdef VIRTUAL_STACK
- extern void arpintr (int);
- #else
- extern void arpintr (void);
- #endif /* VIRTUAL_STACK */
- extern int arpresolve (struct arpcom *, struct rtentry *, struct mbuf *,
- struct sockaddr *, u_char *);
- extern void arp_rtrequest (int, struct rtentry *, struct sockaddr *);
- extern void arpwhohas (struct arpcom *, struct in_addr *);
- extern void revarpinput(struct mbuf *m);
- extern void ipToEtherMCastMap (struct in_addr *, u_char * );
- extern int ipEtherResolvRtn (FUNCPTR, struct mbuf *, struct sockaddr *,
- struct ifnet *, struct rtentry *, char *);
- extern int ether_addmulti (struct ifreq *, struct arpcom *);
- extern int ether_delmulti (struct ifreq *, struct arpcom *);
- extern char * ether_sprintf( u_char * ap);
- extern void db_print_sa(struct sockaddr* sa);
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCif_etherh */