*
* From: NetBSD: print-arcnet.c,v 1.2 2000/04/24 13:02:28 itojun Exp
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-arcnet.c,v 1.20 2005-04-06 21:32:38 mcr Exp $ (LBL)";
-#endif
+
+/* \summary: Attached Resource Computer NETwork (ARCNET) printer */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
-#include <stdio.h>
-#include <pcap.h>
-
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
-#include "arcnet.h"
-static int arcnet_encap_print(u_char arctype, const u_char *p,
+/*
+ * from: NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp
+ */
+
+/*
+ * Structure of a 2.5MB/s Arcnet header on the BSDs,
+ * as given to interface code.
+ */
+struct arc_header {
+ uint8_t arc_shost;
+ uint8_t arc_dhost;
+ uint8_t arc_type;
+ /*
+ * only present for newstyle encoding with LL fragmentation.
+ * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead.
+ */
+ uint8_t arc_flag;
+ uint16_t arc_seqid;
+
+ /*
+ * only present in exception packets (arc_flag == 0xff)
+ */
+ uint8_t arc_type2; /* same as arc_type */
+ uint8_t arc_flag2; /* real flag value */
+ uint16_t arc_seqid2; /* real seqid value */
+};
+
+#define ARC_HDRLEN 3
+#define ARC_HDRNEWLEN 6
+#define ARC_HDRNEWLEN_EXC 10
+
+/* RFC 1051 */
+#define ARCTYPE_IP_OLD 240 /* IP protocol */
+#define ARCTYPE_ARP_OLD 241 /* address resolution protocol */
+
+/* RFC 1201 */
+#define ARCTYPE_IP 212 /* IP protocol */
+#define ARCTYPE_ARP 213 /* address resolution protocol */
+#define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */
+
+#define ARCTYPE_ATALK 221 /* Appletalk */
+#define ARCTYPE_BANIAN 247 /* Banyan Vines */
+#define ARCTYPE_IPX 250 /* Novell IPX */
+
+#define ARCTYPE_INET6 0xc4 /* IPng */
+#define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */
+
+/*
+ * Structure of a 2.5MB/s Arcnet header on Linux. Linux has
+ * an extra "offset" field when given to interface code, and
+ * never presents packets that look like exception frames.
+ */
+struct arc_linux_header {
+ uint8_t arc_shost;
+ uint8_t arc_dhost;
+ uint16_t arc_offset;
+ uint8_t arc_type;
+ /*
+ * only present for newstyle encoding with LL fragmentation.
+ * Don't use sizeof(anything), use ARC_LINUX_HDR{,NEW}LEN
+ * instead.
+ */
+ uint8_t arc_flag;
+ uint16_t arc_seqid;
+};
+
+#define ARC_LINUX_HDRLEN 5
+#define ARC_LINUX_HDRNEWLEN 8
+
+static int arcnet_encap_print(netdissect_options *, u_char arctype, const u_char *p,
u_int length, u_int caplen);
-struct tok arctypemap[] = {
+static const struct tok arctypemap[] = {
{ ARCTYPE_IP_OLD, "oldip" },
{ ARCTYPE_ARP_OLD, "oldarp" },
{ ARCTYPE_IP, "ip" },
};
static inline void
-arcnet_print(const u_char *bp, u_int length, int phds, int flag, u_int seqid)
+arcnet_print(netdissect_options *ndo, const u_char *bp, u_int length, int phds,
+ int flag, u_int seqid)
{
const struct arc_header *ap;
const char *arctypename;
ap = (const struct arc_header *)bp;
- if (qflag) {
- (void)printf("%02x %02x %d: ",
+ if (ndo->ndo_qflag) {
+ ND_PRINT((ndo, "%02x %02x %d: ",
ap->arc_shost,
ap->arc_dhost,
- length);
+ length));
return;
}
arctypename = tok2str(arctypemap, "%02x", ap->arc_type);
if (!phds) {
- (void)printf("%02x %02x %s %d: ",
+ ND_PRINT((ndo, "%02x %02x %s %d: ",
ap->arc_shost, ap->arc_dhost, arctypename,
- length);
+ length));
return;
}
if (flag == 0) {
- (void)printf("%02x %02x %s seqid %04x %d: ",
+ ND_PRINT((ndo, "%02x %02x %s seqid %04x %d: ",
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
- length);
+ length));
return;
}
if (flag & 1)
- (void)printf("%02x %02x %s seqid %04x "
+ ND_PRINT((ndo, "%02x %02x %s seqid %04x "
"(first of %d fragments) %d: ",
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
- (flag + 3) / 2, length);
+ (flag + 3) / 2, length));
else
- (void)printf("%02x %02x %s seqid %04x "
+ ND_PRINT((ndo, "%02x %02x %s seqid %04x "
"(fragment %d) %d: ",
ap->arc_shost, ap->arc_dhost, arctypename, seqid,
- flag/2 + 1, length);
+ flag/2 + 1, length));
}
/*
* is the number of bytes actually captured.
*/
u_int
-arcnet_if_print(const struct pcap_pkthdr *h, const u_char *p)
+arcnet_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
{
u_int caplen = h->caplen;
u_int length = h->len;
u_int seqid = 0;
u_char arc_type;
- if (caplen < ARC_HDRLEN) {
- printf("[|arcnet]");
+ if (caplen < ARC_HDRLEN || length < ARC_HDRLEN) {
+ ND_PRINT((ndo, "[|arcnet]"));
return (caplen);
}
}
if (phds) {
- if (caplen < ARC_HDRNEWLEN) {
- arcnet_print(p, length, 0, 0, 0);
- printf("[|phds]");
+ if (caplen < ARC_HDRNEWLEN || length < ARC_HDRNEWLEN) {
+ arcnet_print(ndo, p, length, 0, 0, 0);
+ ND_PRINT((ndo, "[|phds]"));
return (caplen);
}
if (ap->arc_flag == 0xff) {
- if (caplen < ARC_HDRNEWLEN_EXC) {
- arcnet_print(p, length, 0, 0, 0);
- printf("[|phds extended]");
+ if (caplen < ARC_HDRNEWLEN_EXC || length < ARC_HDRNEWLEN_EXC) {
+ arcnet_print(ndo, p, length, 0, 0, 0);
+ ND_PRINT((ndo, "[|phds extended]"));
return (caplen);
}
flag = ap->arc_flag2;
}
- if (eflag)
- arcnet_print(p, length, phds, flag, seqid);
+ if (ndo->ndo_eflag)
+ arcnet_print(ndo, p, length, phds, flag, seqid);
/*
* Go past the ARCNET header.
return (archdrlen);
}
- if (!arcnet_encap_print(arc_type, p, length, caplen))
- default_print(p, caplen);
+ if (!arcnet_encap_print(ndo, arc_type, p, length, caplen))
+ ND_DEFAULTPRINT(p, caplen);
return (archdrlen);
}
* extra "offset" field between the src/dest and packet type.
*/
u_int
-arcnet_linux_if_print(const struct pcap_pkthdr *h, const u_char *p)
+arcnet_linux_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
{
u_int caplen = h->caplen;
u_int length = h->len;
int archdrlen = 0;
u_char arc_type;
- if (caplen < ARC_LINUX_HDRLEN) {
- printf("[|arcnet]");
+ if (caplen < ARC_LINUX_HDRLEN || length < ARC_LINUX_HDRLEN) {
+ ND_PRINT((ndo, "[|arcnet]"));
return (caplen);
}
switch (arc_type) {
default:
archdrlen = ARC_LINUX_HDRNEWLEN;
- if (caplen < ARC_LINUX_HDRNEWLEN) {
- printf("[|arcnet]");
+ if (caplen < ARC_LINUX_HDRNEWLEN || length < ARC_LINUX_HDRNEWLEN) {
+ ND_PRINT((ndo, "[|arcnet]"));
return (caplen);
}
break;
break;
}
- if (eflag)
- arcnet_print(p, length, 0, 0, 0);
+ if (ndo->ndo_eflag)
+ arcnet_print(ndo, p, length, 0, 0, 0);
/*
* Go past the ARCNET header.
caplen -= archdrlen;
p += archdrlen;
- if (!arcnet_encap_print(arc_type, p, length, caplen))
- default_print(p, caplen);
+ if (!arcnet_encap_print(ndo, arc_type, p, length, caplen))
+ ND_DEFAULTPRINT(p, caplen);
return (archdrlen);
}
static int
-arcnet_encap_print(u_char arctype, const u_char *p,
+arcnet_encap_print(netdissect_options *ndo, u_char arctype, const u_char *p,
u_int length, u_int caplen)
{
switch (arctype) {
case ARCTYPE_IP_OLD:
case ARCTYPE_IP:
- ip_print(gndo, p, length);
+ ip_print(ndo, p, length);
return (1);
-#ifdef INET6
case ARCTYPE_INET6:
- ip6_print(p, length);
+ ip6_print(ndo, p, length);
return (1);
-#endif /*INET6*/
case ARCTYPE_ARP_OLD:
case ARCTYPE_ARP:
case ARCTYPE_REVARP:
- arp_print(gndo, p, length, caplen);
+ arp_print(ndo, p, length, caplen);
return (1);
case ARCTYPE_ATALK: /* XXX was this ever used? */
- if (vflag)
- fputs("et1 ", stdout);
- atalk_print(p, length);
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo, "et1 "));
+ atalk_print(ndo, p, length);
return (1);
case ARCTYPE_IPX:
- ipx_print(p, length);
+ ipx_print(ndo, p, length);
return (1);
default:
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