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, 125 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-dtp.c b/freebsd/contrib/tcpdump/print-dtp.c
new file mode 100644
index 00000000..f1471e86
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-dtp.c
@@ -0,0 +1,125 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1998-2007 The TCPDUMP project
+ *
+ * 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, and (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.
+ * 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.
+ *
+ * Dynamic Trunk Protocol (DTP)
+ *
+ * Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"		
+#include "nlpid.h"
+
+#define DTP_HEADER_LEN			1
+#define DTP_DOMAIN_TLV			0x0001
+#define DTP_STATUS_TLV			0x0002
+#define DTP_DTP_TYPE_TLV		0x0003
+#define DTP_NEIGHBOR_TLV		0x0004
+
+static struct tok dtp_tlv_values[] = {
+    { DTP_DOMAIN_TLV, "Domain TLV"},
+    { DTP_STATUS_TLV, "Status TLV"},
+    { DTP_DTP_TYPE_TLV, "DTP type TLV"},
+    { DTP_NEIGHBOR_TLV, "Neighbor TLV"},
+    { 0, NULL}
+};
+
+void
+dtp_print (const u_char *pptr, u_int length)
+{
+    int type, len;
+    const u_char *tptr;
+
+    if (length < DTP_HEADER_LEN)
+        goto trunc;
+
+    tptr = pptr; 
+
+    if (!TTEST2(*tptr, DTP_HEADER_LEN))	
+	goto trunc;
+
+    printf("DTPv%u, length %u", 
+           (*tptr),
+           length);
+
+    /*
+     * In non-verbose mode, just print version.
+     */
+    if (vflag < 1) {
+	return;
+    }
+
+    tptr += DTP_HEADER_LEN;
+
+    while (tptr < (pptr+length)) {
+
+        if (!TTEST2(*tptr, 4)) 
+            goto trunc;
+
+	type = EXTRACT_16BITS(tptr);
+        len  = EXTRACT_16BITS(tptr+2); 
+
+        /* infinite loop check */
+        if (type == 0 || len == 0) {
+            return;
+        }
+
+        printf("\n\t%s (0x%04x) TLV, length %u",
+               tok2str(dtp_tlv_values, "Unknown", type),
+               type, len);
+
+        switch (type) {
+	case DTP_DOMAIN_TLV:
+		printf(", %s", tptr+4);
+		break;
+
+	case DTP_STATUS_TLV:            
+	case DTP_DTP_TYPE_TLV:
+                printf(", 0x%x", *(tptr+4));
+                break;
+
+	case DTP_NEIGHBOR_TLV:
+                printf(", %s", etheraddr_string(tptr+4));
+                break;
+
+        default:
+            break;
+        }	
+        tptr += len;
+    }
+
+    return;
+
+ trunc:
+    printf("[|dtp]");
+}
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 4
+ * End:
+ */