279 lines
6.3 KiB
C
279 lines
6.3 KiB
C
/* $NetBSD: print-arcnet.c,v 1.2 2000/04/24 13:02:28 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
|
|
* 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: (1) source code distributions
|
|
* retain the above copyright notice and this paragraph in its entirety, (2)
|
|
* distributions including binary code include the above copyright notice and
|
|
* this paragraph in its entirety in the documentation or other materials
|
|
* provided with the distribution, and (3) all advertising materials mentioning
|
|
* features or use of this software display the following acknowledgement:
|
|
* ``This product includes software developed by the University of California,
|
|
* Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static const char rcsid[] =
|
|
"@(#) Header: print-ether.c,v 1.44 97/05/26 17:18:13 leres Exp (LBL)";
|
|
#else
|
|
__RCSID("$NetBSD: print-arcnet.c,v 1.2 2000/04/24 13:02:28 itojun Exp $");
|
|
#endif
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
|
|
#if __STDC__
|
|
struct mbuf;
|
|
struct rtentry;
|
|
#endif
|
|
#include <net/if.h>
|
|
|
|
#include <netinet/in.h>
|
|
#ifdef __NetBSD__
|
|
#include <net/if_arc.h>
|
|
#else
|
|
Error: ARCnet support only available on NetBSD
|
|
#endif
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/tcpip.h>
|
|
|
|
#include <stdio.h>
|
|
#include <pcap.h>
|
|
|
|
#include "interface.h"
|
|
#include "addrtoname.h"
|
|
#include "ethertype.h"
|
|
|
|
const u_char *packetp;
|
|
const u_char *snapend;
|
|
|
|
int arcnet_encap_print(u_char arctype, const u_char *p,
|
|
u_int length, u_int caplen);
|
|
|
|
struct arctype_map {
|
|
const int arctype;
|
|
char * const name;
|
|
} arctypemap[] = {
|
|
{ ARCTYPE_IP_OLD, "oldip" },
|
|
{ ARCTYPE_ARP_OLD, "oldarp" },
|
|
{ ARCTYPE_IP, "ip" },
|
|
{ ARCTYPE_ARP, "arp" },
|
|
{ ARCTYPE_REVARP, "rarp" },
|
|
{ ARCTYPE_ATALK, "atalk" },
|
|
{ ARCTYPE_BANIAN, "banyan" },
|
|
{ ARCTYPE_IPX, "ipx" },
|
|
{ ARCTYPE_INET6, "ipv6" },
|
|
{ ARCTYPE_DIAGNOSE, "diag" },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static inline void
|
|
arcnet_print(const u_char *bp, u_int length, int phds, int flag, u_int seqid)
|
|
{
|
|
const struct arc_header *ap;
|
|
struct arctype_map *atmp;
|
|
char *arctypename;
|
|
char typebuf[3];
|
|
|
|
|
|
ap = (const struct arc_header *)bp;
|
|
|
|
|
|
if (qflag) {
|
|
(void)printf("%02x %02x %d: ",
|
|
ap->arc_shost,
|
|
ap->arc_dhost,
|
|
length);
|
|
return;
|
|
}
|
|
|
|
for (arctypename = NULL, atmp = arctypemap; atmp->arctype; atmp++) {
|
|
if (atmp->arctype == ap->arc_type) {
|
|
arctypename = atmp->name;
|
|
break;
|
|
}
|
|
}
|
|
if (!arctypename) {
|
|
arctypename = typebuf;
|
|
(void)snprintf(typebuf, sizeof(typebuf), "%02x", ap->arc_type);
|
|
}
|
|
|
|
if (!phds) {
|
|
(void)printf("%02x %02x %s %d: ",
|
|
ap->arc_shost, ap->arc_dhost, arctypename,
|
|
length);
|
|
return;
|
|
}
|
|
|
|
if (flag == 0) {
|
|
(void)printf("%02x %02x %s seqid %04x %d: ",
|
|
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
|
|
length);
|
|
return;
|
|
}
|
|
|
|
if (flag & 1)
|
|
(void)printf("%02x %02x %s seqid %04x "
|
|
"(first of %d fragments) %d: ",
|
|
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
|
|
(flag + 3) / 2, length);
|
|
else
|
|
(void)printf("%02x %02x %s seqid %04x "
|
|
"(fragment %d) %d: ",
|
|
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
|
|
flag/2 + 1, length);
|
|
}
|
|
|
|
/*
|
|
* This is the top level routine of the printer. 'p' is the points
|
|
* to the ether header of the packet, 'tvp' is the timestamp,
|
|
* 'length' is the length of the packet off the wire, and 'caplen'
|
|
* is the number of bytes actually captured.
|
|
*/
|
|
void
|
|
arcnet_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
|
|
{
|
|
u_int caplen = h->caplen;
|
|
u_int length = h->len;
|
|
struct arc_header *ap;
|
|
|
|
int phds, flag, archdrlen;
|
|
u_int seqid;
|
|
u_char arc_type;
|
|
|
|
ts_print(&h->ts);
|
|
|
|
if (caplen < ARC_HDRLEN) {
|
|
printf("[|arcnet]");
|
|
goto out;
|
|
}
|
|
|
|
ap = (struct arc_header *)p;
|
|
arc_type = ap->arc_type;
|
|
|
|
switch (arc_type) {
|
|
default:
|
|
phds = 1;
|
|
break;
|
|
case ARCTYPE_IP_OLD:
|
|
case ARCTYPE_ARP_OLD:
|
|
case ARCTYPE_DIAGNOSE:
|
|
phds = 0;
|
|
archdrlen = ARC_HDRLEN;
|
|
break;
|
|
}
|
|
|
|
if (phds) {
|
|
if (caplen < ARC_HDRNEWLEN) {
|
|
arcnet_print(p, length, 0, 0, 0);
|
|
printf("[|phds]");
|
|
goto out;
|
|
}
|
|
|
|
if (ap->arc_flag == 0xff) {
|
|
if (caplen < ARC_HDRNEWLEN_EXC) {
|
|
arcnet_print(p, length, 0, 0, 0);
|
|
printf("[|phds extended]");
|
|
goto out;
|
|
}
|
|
flag = ap->arc_flag2;
|
|
seqid = ap->arc_seqid2;
|
|
archdrlen = ARC_HDRNEWLEN_EXC;
|
|
} else {
|
|
flag = ap->arc_flag;
|
|
seqid = ap->arc_seqid;
|
|
archdrlen = ARC_HDRNEWLEN;
|
|
}
|
|
}
|
|
|
|
|
|
if (eflag)
|
|
arcnet_print(p, length, phds, flag, seqid);
|
|
|
|
/*
|
|
* Some printers want to get back at the ethernet addresses,
|
|
* and/or check that they're not walking off the end of the packet.
|
|
* Rather than pass them all the way down, we set these globals.
|
|
*/
|
|
packetp = p;
|
|
snapend = p + caplen;
|
|
|
|
length -= archdrlen;
|
|
caplen -= archdrlen;
|
|
p += archdrlen;
|
|
|
|
if (phds && flag && (flag & 1) == 0)
|
|
goto out2;
|
|
|
|
if (!arcnet_encap_print(arc_type, p, length, caplen)) {
|
|
default_print(p, caplen);
|
|
goto out;
|
|
}
|
|
|
|
out2:
|
|
if (xflag)
|
|
default_print(p, caplen);
|
|
|
|
out:
|
|
putchar('\n');
|
|
}
|
|
|
|
/*
|
|
* Prints the packet encapsulated in an ARCnet data field,
|
|
* given the ARCnet system code.
|
|
*
|
|
* Returns non-zero if it can do so, zero if the system code is unknown.
|
|
*/
|
|
|
|
|
|
int
|
|
arcnet_encap_print(u_char arctype, const u_char *p,
|
|
u_int length, u_int caplen)
|
|
{
|
|
switch (arctype) {
|
|
|
|
case ARCTYPE_IP_OLD:
|
|
case ARCTYPE_IP:
|
|
ip_print(p, length);
|
|
return (1);
|
|
|
|
#ifdef INET6
|
|
case ARCTYPE_INET6:
|
|
ip6_print(p, length);
|
|
return (1);
|
|
#endif /*INET6*/
|
|
|
|
case ARCTYPE_ARP_OLD:
|
|
case ARCTYPE_ARP:
|
|
case ARCTYPE_REVARP:
|
|
arp_print(p, length, caplen);
|
|
return (1);
|
|
|
|
case ARCTYPE_ATALK: /* XXX was this ever used? */
|
|
if (vflag)
|
|
fputs("et1 ", stdout);
|
|
atalk_print(p, length);
|
|
return (1);
|
|
|
|
default:
|
|
return (0);
|
|
}
|
|
}
|