Virgin import of tcpdump.org tcpdump v3.5

1 files changed, 148 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-lane.c b/contrib/tcpdump/print-lane.c
new file mode 100644
index 0000000..19061de
--- /dev/null
+++ b/contrib/tcpdump/print-lane.c
@@ -0,0 +1,148 @@
+/*
+ * Marko Kiiskila carnil@cs.tut.fi 
+ * 
+ * Tampere University of Technology - Telecommunications Laboratory
+ *
+ * Permission to use, copy, modify and distribute this
+ * software and its documentation is hereby granted,
+ * provided that both the copyright notice and this
+ * permission notice appear in all copies of the software,
+ * derivative works or modified versions, and any portions
+ * thereof, that both notices appear in supporting
+ * documentation, and that the use of this software is
+ * acknowledged in any publications resulting from using
+ * the software.
+ * 
+ * TUT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION AND DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS
+ * SOFTWARE.
+ * 
+ */
+
+#ifndef lint
+static const char rcsid[] =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-lane.c,v 1.2 1999/11/21 09:36:56 fenner Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#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 "lane.h"
+
+static const u_char *packetp;
+static const u_char *snapend;
+
+static inline void
+lane_print(register const u_char *bp, int length)
+{
+	register const struct lecdatahdr_8023 *ep;
+
+	ep = (const struct lecdatahdr_8023 *)bp;
+	if (qflag)
+		(void)printf("lecid:%d %s %s %d: ",
+			     ntohs(ep->le_header),
+			     etheraddr_string(ep->h_source),
+			     etheraddr_string(ep->h_dest),
+			     length);
+	else
+		(void)printf("lecid:%d %s %s %s %d: ",
+			     ntohs(ep->le_header),
+			     etheraddr_string(ep->h_source),
+			     etheraddr_string(ep->h_dest),
+			     etherproto_string(ep->h_type),
+			     length);
+}
+
+/*
+ * This is the top level routine of the printer.  'p' is the points
+ * to the ether header of the packet, 'h->tv' is the timestamp,
+ * 'h->length' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ */
+void
+lane_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
+{
+	int caplen = h->caplen;
+	int length = h->len;
+	struct lecdatahdr_8023 *ep;
+	u_short ether_type;
+	u_short extracted_ethertype;
+
+	ts_print(&h->ts);
+
+	if (caplen < sizeof(struct lecdatahdr_8023)) {
+		printf("[|lane]");
+		goto out;
+	}
+
+	if (eflag)
+		lane_print(p, length);
+
+	/*
+	 * 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 -= sizeof(struct lecdatahdr_8023);
+	caplen -= sizeof(struct lecdatahdr_8023);
+	ep = (struct lecdatahdr_8023 *)p;
+	p += sizeof(struct lecdatahdr_8023);
+
+	ether_type = ntohs(ep->h_type);
+
+	/*
+	 * Is it (gag) an 802.3 encapsulation?
+	 */
+	extracted_ethertype = 0;
+	if (ether_type < ETHERMTU) {
+		/* Try to print the LLC-layer header & higher layers */
+		if (llc_print(p, length, caplen, ep->h_source,ep->h_dest)==0) {
+			/* ether_type not known, print raw packet */
+			if (!eflag)
+				lane_print((u_char *)ep, length);
+			if (extracted_ethertype) {
+				printf("(LLC %s) ",
+			       etherproto_string(htons(extracted_ethertype)));
+			}
+			if (!xflag && !qflag)
+				default_print(p, caplen);
+		}
+	} else if (ether_encap_print(ether_type, p, length, caplen) == 0) {
+		/* ether_type not known, print raw packet */
+		if (!eflag)
+			lane_print((u_char *)ep, length + sizeof(*ep));
+		if (!xflag && !qflag)
+			default_print(p, caplen);
+	}
+	if (xflag)
+		default_print(p, caplen);
+ out:
+	putchar('\n');
+}