*/
#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-atalk.c,v 1.49 1999-10-17 21:37:11 mcr Exp $ (LBL)";
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-atalk.c,v 1.81 2004-05-01 09:41:50 hannes Exp $ (LBL)";
#endif
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-
-#if __STDC__
-struct mbuf;
-struct rtentry;
+#ifdef HAVE_CONFIG_H
+#include "config.h"
#endif
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#include <netinet/udp.h>
-#include <netinet/tcp.h>
+#include <tcpdump-stdinc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <pcap.h>
#include "interface.h"
#include "addrtoname.h"
#include "ethertype.h"
#include "extract.h" /* must come after interface.h */
#include "appletalk.h"
-#include "savestr.h"
static struct tok type2str[] = {
{ ddpRTMP, "rtmp" },
};
struct aarp {
- u_short htype, ptype;
- u_char halen, palen;
- u_short op;
- u_char hsaddr[6];
- u_char psaddr[4];
- u_char hdaddr[6];
- u_char pdaddr[4];
+ u_int16_t htype, ptype;
+ u_int8_t halen, palen;
+ u_int16_t op;
+ u_int8_t hsaddr[6];
+ u_int8_t psaddr[4];
+ u_int8_t hdaddr[6];
+ u_int8_t pdaddr[4];
};
static char tstr[] = "[|atalk]";
static const char *ddpskt_string(int);
/*
- * Print AppleTalk Datagram Delivery Protocol packets.
+ * Print LLAP packets received on a physical LocalTalk interface.
*/
-void
-atalk_print(register const u_char *bp, u_int length)
+u_int
+ltalk_if_print(const struct pcap_pkthdr *h, const u_char *p)
+{
+ return (llap_print(p, h->caplen));
+}
+
+/*
+ * Print AppleTalk LLAP packets.
+ */
+u_int
+llap_print(register const u_char *bp, u_int length)
{
register const struct LAP *lp;
register const struct atDDP *dp;
register const struct atShortDDP *sdp;
u_short snet;
+ u_int hdrlen;
- lp = (struct LAP *)bp;
+ /*
+ * Our packet is on a 4-byte boundary, as we're either called
+ * directly from a top-level link-layer printer (ltalk_if_print)
+ * or from the UDP printer. The LLAP+DDP header is a multiple
+ * of 4 bytes in length, so the DDP payload is also on a 4-byte
+ * boundary, and we don't need to align it before calling
+ * "ddp_print()".
+ */
+ lp = (const struct LAP *)bp;
bp += sizeof(*lp);
length -= sizeof(*lp);
+ hdrlen = sizeof(*lp);
switch (lp->type) {
case lapShortDDP:
if (length < ddpSSize) {
(void)printf(" [|sddp %d]", length);
- return;
+ return (length);
}
sdp = (const struct atShortDDP *)bp;
printf("%s.%s",
ataddr_string(0, lp->dst), ddpskt_string(sdp->dstSkt));
bp += ddpSSize;
length -= ddpSSize;
+ hdrlen += ddpSSize;
ddp_print(bp, length, sdp->type, 0, lp->src, sdp->srcSkt);
break;
case lapDDP:
if (length < ddpSize) {
(void)printf(" [|ddp %d]", length);
- return;
+ return (length);
}
dp = (const struct atDDP *)bp;
snet = EXTRACT_16BITS(&dp->srcNet);
ddpskt_string(dp->dstSkt));
bp += ddpSize;
length -= ddpSize;
+ hdrlen += ddpSize;
ddp_print(bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
break;
lp->src, lp->dst, lp->type, length);
break;
}
+ return (hdrlen);
+}
+
+/*
+ * Print EtherTalk/TokenTalk packets (or FDDITalk, or whatever it's called
+ * when it runs over FDDI; yes, I've seen FDDI captures with AppleTalk
+ * packets in them).
+ */
+void
+atalk_print(register const u_char *bp, u_int length)
+{
+ register const struct atDDP *dp;
+ u_short snet;
+
+ if(!eflag)
+ printf("AT ");
+
+ if (length < ddpSize) {
+ (void)printf(" [|ddp %d]", length);
+ return;
+ }
+ dp = (const struct atDDP *)bp;
+ snet = EXTRACT_16BITS(&dp->srcNet);
+ printf("%s.%s", ataddr_string(snet, dp->srcNode),
+ ddpskt_string(dp->srcSkt));
+ printf(" > %s.%s: ",
+ ataddr_string(EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
+ ddpskt_string(dp->dstSkt));
+ bp += ddpSize;
+ length -= ddpSize;
+ ddp_print(bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
}
/* XXX should probably pass in the snap header and do checks like arp_print() */
printf("aarp ");
ap = (const struct aarp *)bp;
- if (ap->htype == 1 && ap->ptype == ETHERTYPE_ATALK &&
+ if (EXTRACT_16BITS(&ap->htype) == 1 &&
+ EXTRACT_16BITS(&ap->ptype) == ETHERTYPE_ATALK &&
ap->halen == 6 && ap->palen == 4 )
- switch (ap->op) {
+ switch (EXTRACT_16BITS(&ap->op)) {
case 1: /* request */
(void)printf("who-has %s tell %s",
AT(pdaddr), AT(psaddr));
return;
}
- (void)printf("len %d op %d htype %d ptype %#x halen %d palen %d",
- length, ap->op, ap->htype, ap->ptype, ap->halen, ap->palen );
+ (void)printf("len %u op %u htype %u ptype %#x halen %u palen %u",
+ length, EXTRACT_16BITS(&ap->op), EXTRACT_16BITS(&ap->htype),
+ EXTRACT_16BITS(&ap->ptype), ap->halen, ap->palen);
}
+/*
+ * Print AppleTalk Datagram Delivery Protocol packets.
+ */
static void
ddp_print(register const u_char *bp, register u_int length, register int t,
register u_short snet, register u_char snode, u_char skt)
atp_print((const struct atATP *)bp, length);
break;
+ case ddpEIGRP:
+ eigrp_print(bp, length);
+ break;
+
default:
(void)printf(" at-%s %d", tok2str(type2str, NULL, t), length);
break;
register u_char snode, register u_char skt)
{
register const struct atNBPtuple *tp =
- (struct atNBPtuple *)((u_char *)np + nbpHeaderSize);
+ (const struct atNBPtuple *)((u_char *)np + nbpHeaderSize);
int i;
const u_char *ep;
+ if (length < nbpHeaderSize) {
+ (void)printf(" truncated-nbp %d", length);
+ return;
+ }
+
length -= nbpHeaderSize;
if (length < 8) {
/* must be room for at least one tuple */
return (0);
}
while ((int)--length >= 0) {
- if (cp >= (char *)ep) {
+ if (cp >= (const char *)ep) {
fputs(tstr, stdout);
return (0);
}
{
register struct hnamemem *tp, *tp2;
register int i = (atnet << 8) | athost;
- char nambuf[256];
+ char nambuf[MAXHOSTNAMELEN + 20];
static int first = 1;
FILE *fp;
while (fgets(line, sizeof(line), fp)) {
if (line[0] == '\n' || line[0] == 0 || line[0] == '#')
continue;
- if (sscanf(line, "%d.%d.%d %s", &i1, &i2, &i3,
+ if (sscanf(line, "%d.%d.%d %256s", &i1, &i2, &i3,
nambuf) == 4)
/* got a hostname. */
i3 |= ((i1 << 8) | i2) << 8;
- else if (sscanf(line, "%d.%d %s", &i1, &i2,
+ else if (sscanf(line, "%d.%d %256s", &i1, &i2,
nambuf) == 3)
/* got a net name */
i3 = (((i1 << 8) | i2) << 8) | 255;
;
tp->addr = i3;
tp->nxt = newhnamemem();
- tp->name = savestr(nambuf);
+ tp->name = strdup(nambuf);
}
fclose(fp);
}
if (tp2->addr == i) {
tp->addr = (atnet << 8) | athost;
tp->nxt = newhnamemem();
- (void)sprintf(nambuf, "%s.%d", tp2->name, athost);
- tp->name = savestr(nambuf);
+ (void)snprintf(nambuf, sizeof(nambuf), "%s.%d",
+ tp2->name, athost);
+ tp->name = strdup(nambuf);
return (tp->name);
}
tp->addr = (atnet << 8) | athost;
tp->nxt = newhnamemem();
if (athost != 255)
- (void)sprintf(nambuf, "%d.%d.%d",
+ (void)snprintf(nambuf, sizeof(nambuf), "%d.%d.%d",
atnet >> 8, atnet & 0xff, athost);
else
- (void)sprintf(nambuf, "%d.%d", atnet >> 8, atnet & 0xff);
- tp->name = savestr(nambuf);
+ (void)snprintf(nambuf, sizeof(nambuf), "%d.%d", atnet >> 8,
+ atnet & 0xff);
+ tp->name = strdup(nambuf);
return (tp->name);
}
static char buf[8];
if (nflag) {
- (void)sprintf(buf, "%d", skt);
+ (void)snprintf(buf, sizeof(buf), "%d", skt);
return (buf);
}
return (tok2str(skt2str, "%d", skt));
projects / tcpdump / blobdiff