Add tcpdump and libpcap.

- Update the file builder generator to handle generator specific cflags and
  includes. The tcpdump and libpcap have localised headers and need specific
  headers paths to see them. There are also module specific flags and these
  need to be passed to the lex and yacc generators.

- Add the tcpdump support.

1 files changed, 120 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-lane.c b/freebsd/contrib/tcpdump/print-lane.c
new file mode 100644
index 00000000..b637b984
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-lane.c
@@ -0,0 +1,120 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * 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[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-lane.c,v 1.25 2005-11-13 12:12:42 guy Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <pcap.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+#include "ether.h"
+#include "lane.h"
+
+static const struct tok lecop2str[] = {
+	{ 0x0001,	"configure request" },
+	{ 0x0101,	"configure response" },
+	{ 0x0002,	"join request" },
+	{ 0x0102,	"join response" },
+	{ 0x0003,	"ready query" },
+	{ 0x0103,	"ready indication" },
+	{ 0x0004,	"register request" },
+	{ 0x0104,	"register response" },
+	{ 0x0005,	"unregister request" },
+	{ 0x0105,	"unregister response" },
+	{ 0x0006,	"ARP request" },
+	{ 0x0106,	"ARP response" },
+	{ 0x0007,	"flush request" },
+	{ 0x0107,	"flush response" },
+	{ 0x0008,	"NARP request" },
+	{ 0x0009,	"topology request" },
+	{ 0,		NULL }
+};
+
+static void
+lane_hdr_print(netdissect_options *ndo, const u_char *bp)
+{
+	(void)ND_PRINT((ndo, "lecid:%x ", EXTRACT_16BITS(bp)));
+}
+
+/*
+ * This is the top level routine of the printer.  'p' points
+ * to the LANE header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ *
+ * This assumes 802.3, not 802.5, LAN emulation.
+ */
+void
+lane_print(const u_char *p, u_int length, u_int caplen)
+{
+	struct lane_controlhdr *lec;
+
+	if (caplen < sizeof(struct lane_controlhdr)) {
+		printf("[|lane]");
+		return;
+	}
+
+	lec = (struct lane_controlhdr *)p;
+	if (EXTRACT_16BITS(&lec->lec_header) == 0xff00) {
+		/*
+		 * LE Control.
+		 */
+		printf("lec: proto %x vers %x %s",
+		    lec->lec_proto, lec->lec_vers,
+		    tok2str(lecop2str, "opcode-#%u", EXTRACT_16BITS(&lec->lec_opcode)));
+		return;
+	}
+
+	/*
+	 * Go past the LE header.
+	 */
+	length -= 2;
+	caplen -= 2;
+	p += 2;
+
+	/*
+	 * Now print the encapsulated frame, under the assumption
+	 * that it's an Ethernet frame.
+	 */
+	ether_print(gndo, p, length, caplen, lane_hdr_print, p - 2);
+}
+
+u_int
+lane_if_print(const struct pcap_pkthdr *h, const u_char *p)
+{
+	lane_print(p, h->len, h->caplen);
+
+	return (sizeof(struct lecdatahdr_8023));
+}