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, 380 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-vtp.c b/freebsd/contrib/tcpdump/print-vtp.c
new file mode 100644
index 00000000..47afa101
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-vtp.c
@@ -0,0 +1,380 @@
+#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.
+ *
+ * VLAN TRUNKING PROTOCOL (VTP)
+ *
+ * Reference documentation:
+ *  http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52.shtml 
+ *  http://www.cisco.com/warp/public/473/21.html 
+ *  http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/frames.htm
+ *
+ * Original code ode 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 VTP_HEADER_LEN			36
+#define	VTP_DOMAIN_NAME_LEN		32
+#define	VTP_MD5_DIGEST_LEN		16
+#define VTP_UPDATE_TIMESTAMP_LEN	12
+#define VTP_VLAN_INFO_OFFSET		12
+
+#define VTP_SUMMARY_ADV			0x01
+#define VTP_SUBSET_ADV			0x02
+#define VTP_ADV_REQUEST			0x03
+#define VTP_JOIN_MESSAGE		0x04
+
+struct vtp_vlan_ {
+    u_int8_t  len;
+    u_int8_t  status;
+    u_int8_t  type;
+    u_int8_t  name_len;
+    u_int16_t vlanid;
+    u_int16_t mtu;
+    u_int32_t index;
+};
+
+static struct tok vtp_message_type_values[] = {
+    { VTP_SUMMARY_ADV, "Summary advertisement"},
+    { VTP_SUBSET_ADV, "Subset advertisement"},
+    { VTP_ADV_REQUEST, "Advertisement request"},
+    { VTP_JOIN_MESSAGE, "Join message"},
+    { 0, NULL }
+};
+
+static struct tok vtp_header_values[] = {
+    { 0x01, "Followers"}, /* On Summary advertisement, 3rd byte is Followers */
+    { 0x02, "Seq number"}, /* On Subset  advertisement, 3rd byte is Sequence number */
+    { 0x03, "Rsvd"}, /* On Adver. requests 3rd byte is Rsvd */
+    { 0x04, "Rsvd"}, /* On Adver. requests 3rd byte is Rsvd */
+    { 0, NULL }
+};
+
+static struct tok vtp_vlan_type_values[] = {
+    { 0x01, "Ethernet"},
+    { 0x02, "FDDI"},
+    { 0x03, "TrCRF"},
+    { 0x04, "FDDI-net"},
+    { 0x05, "TrBRF"},
+    { 0, NULL }
+};
+
+static struct tok vtp_vlan_status[] = {
+    { 0x00, "Operational"},
+    { 0x01, "Suspended"},
+    { 0, NULL }
+};
+
+#define VTP_VLAN_SOURCE_ROUTING_RING_NUMBER      0x01
+#define VTP_VLAN_SOURCE_ROUTING_BRIDGE_NUMBER    0x02
+#define VTP_VLAN_STP_TYPE                        0x03
+#define VTP_VLAN_PARENT_VLAN                     0x04
+#define VTP_VLAN_TRANS_BRIDGED_VLAN              0x05
+#define VTP_VLAN_PRUNING                         0x06
+#define VTP_VLAN_BRIDGE_TYPE                     0x07
+#define VTP_VLAN_ARP_HOP_COUNT                   0x08
+#define VTP_VLAN_STE_HOP_COUNT                   0x09
+#define VTP_VLAN_BACKUP_CRF_MODE                 0x0A
+
+static struct tok vtp_vlan_tlv_values[] = {
+    { VTP_VLAN_SOURCE_ROUTING_RING_NUMBER, "Source-Routing Ring Number TLV"},
+    { VTP_VLAN_SOURCE_ROUTING_BRIDGE_NUMBER, "Source-Routing Bridge Number TLV"},
+    { VTP_VLAN_STP_TYPE, "STP type TLV"},
+    { VTP_VLAN_PARENT_VLAN, "Parent VLAN TLV"},
+    { VTP_VLAN_TRANS_BRIDGED_VLAN, "Translationally bridged VLANs TLV"},
+    { VTP_VLAN_PRUNING, "Pruning TLV"},
+    { VTP_VLAN_BRIDGE_TYPE, "Bridge Type TLV"},
+    { VTP_VLAN_ARP_HOP_COUNT, "Max ARP Hop Count TLV"},
+    { VTP_VLAN_STE_HOP_COUNT, "Max STE Hop Count TLV"},
+    { VTP_VLAN_BACKUP_CRF_MODE, "Backup CRF Mode TLV"},
+    { 0,                                  NULL }
+};
+
+static struct tok vtp_stp_type_values[] = {
+    { 1, "SRT"},
+    { 2, "SRB"},
+    { 3, "Auto"},
+    { 0, NULL }
+};
+
+void
+vtp_print (const u_char *pptr, u_int length)
+{
+    int type, len, tlv_len, tlv_value;
+    const u_char *tptr;
+    const struct vtp_vlan_ *vtp_vlan;
+
+    if (length < VTP_HEADER_LEN)
+        goto trunc;
+
+    tptr = pptr; 
+
+    if (!TTEST2(*tptr, VTP_HEADER_LEN))	
+	goto trunc;
+
+    type = *(tptr+1);
+    printf("VTPv%u, Message %s (0x%02x), length %u",
+	   *tptr,  
+	   tok2str(vtp_message_type_values,"Unknown message type", type),
+	   *(tptr+1),
+	   length);
+
+    /* In non-verbose mode, just print version and message type */
+    if (vflag < 1) {
+        return;
+    }
+
+    /* verbose mode print all fields */
+    printf("\n\tDomain name: %s, %s: %u", 
+	   (tptr+4),
+	   tok2str(vtp_header_values,"Unknown",*(tptr+1)),
+	   *(tptr+2));
+
+    tptr += VTP_HEADER_LEN;
+
+    switch (type) {
+
+    case VTP_SUMMARY_ADV:
+
+	/*
+	 *  SUMMARY ADVERTISEMENT
+	 *
+	 *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |     Version   |     Code      |    Followers  |    MmgtD Len  |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Management Domain Name                     |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Configuration revision number              |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                  Updater Identity IP address                  |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Update Timestamp (12 bytes)                |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                        MD5 digest (16 bytes)                  |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  
+	 */
+
+	printf("\n\t  Config Rev %x, Updater %s",
+	       EXTRACT_32BITS(tptr),
+	       ipaddr_string(tptr+4));
+	tptr += 8;	
+	printf(", Timestamp 0x%08x 0x%08x 0x%08x",
+	       EXTRACT_32BITS(tptr),
+	       EXTRACT_32BITS(tptr + 4),
+	       EXTRACT_32BITS(tptr + 8));
+	tptr += VTP_UPDATE_TIMESTAMP_LEN;
+	printf(", MD5 digest: %08x%08x%08x%08x",
+	       EXTRACT_32BITS(tptr),
+	       EXTRACT_32BITS(tptr + 4),
+	       EXTRACT_32BITS(tptr + 8),
+	       EXTRACT_32BITS(tptr + 12));
+	tptr += VTP_MD5_DIGEST_LEN;
+	break;
+
+    case VTP_SUBSET_ADV:
+
+	/*
+	 *  SUBSET ADVERTISEMENT
+	 *
+	 *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |     Version   |     Code      |   Seq number  |    MmgtD Len  |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Management Domain Name                     |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Configuration revision number              |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                         VLAN info field 1                     |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                         ................                      |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                         VLAN info field N                     |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *      
+	 */
+
+	printf(", Config Rev %x", EXTRACT_32BITS(tptr));
+
+	/*  
+	 *  VLAN INFORMATION
+	 *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  | V info len    |    Status     |  VLAN type    | VLAN name len |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |       ISL vlan id             |            MTU size           |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                     802.10 index (SAID)                       |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                         VLAN name                             |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *
+	 */
+
+	tptr += 4;
+	while (tptr < (pptr+length)) {
+
+	    len = *tptr;
+	    if (len == 0)
+		break;
+
+	    if (!TTEST2(*tptr, len))
+		goto trunc;
+
+	    vtp_vlan = (struct vtp_vlan_*)tptr;
+	    printf("\n\tVLAN info status %s, type %s, VLAN-id %u, MTU %u, SAID 0x%08x, Name %s",
+		   tok2str(vtp_vlan_status,"Unknown",vtp_vlan->status),
+		   tok2str(vtp_vlan_type_values,"Unknown",vtp_vlan->type),
+		   EXTRACT_16BITS(&vtp_vlan->vlanid),
+		   EXTRACT_16BITS(&vtp_vlan->mtu),
+		   EXTRACT_32BITS(&vtp_vlan->index),
+		   (tptr + VTP_VLAN_INFO_OFFSET));
+
+            /*
+             * Vlan names are aligned to 32-bit boundaries.
+             */
+            len  -= VTP_VLAN_INFO_OFFSET + 4*((vtp_vlan->name_len + 3)/4);
+            tptr += VTP_VLAN_INFO_OFFSET + 4*((vtp_vlan->name_len + 3)/4);
+
+            /* TLV information follows */
+
+            while (len > 0) {
+
+                /* 
+                 * Cisco specs says 2 bytes for type + 2 bytes for length, take only 1
+                 * See: http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/frames.htm 
+                 */
+                type = *tptr;
+                tlv_len = *(tptr+1);
+
+                printf("\n\t\t%s (0x%04x) TLV",
+                       tok2str(vtp_vlan_tlv_values, "Unknown", type),
+                       type);
+
+                /*
+                 * infinite loop check
+                 */
+                if (type == 0 || tlv_len == 0) {
+                    return;
+                }
+
+                if (!TTEST2(*tptr, tlv_len*2 +2))
+                    goto trunc;
+
+                tlv_value = EXTRACT_16BITS(tptr+2);
+
+                switch (type) {
+                case VTP_VLAN_STE_HOP_COUNT:
+                    printf(", %u", tlv_value);
+                    break;
+
+                case VTP_VLAN_PRUNING:
+                    printf(", %s (%u)",
+                           tlv_value == 1 ? "Enabled" : "Disabled",
+                           tlv_value);
+                    break;
+
+                case VTP_VLAN_STP_TYPE:
+                    printf(", %s (%u)",
+                           tok2str(vtp_stp_type_values, "Unknown", tlv_value),
+                           tlv_value);
+                    break;
+
+                case VTP_VLAN_BRIDGE_TYPE:
+                    printf(", %s (%u)",
+                           tlv_value == 1 ? "SRB" : "SRT",
+                           tlv_value);
+                    break;
+
+                case VTP_VLAN_BACKUP_CRF_MODE:
+                    printf(", %s (%u)",
+                           tlv_value == 1 ? "Backup" : "Not backup",
+                           tlv_value);
+                    break;
+
+                    /*
+                     * FIXME those are the defined TLVs that lack a decoder
+                     * you are welcome to contribute code ;-)
+                     */
+
+                case VTP_VLAN_SOURCE_ROUTING_RING_NUMBER:
+                case VTP_VLAN_SOURCE_ROUTING_BRIDGE_NUMBER:
+                case VTP_VLAN_PARENT_VLAN:
+                case VTP_VLAN_TRANS_BRIDGED_VLAN:
+                case VTP_VLAN_ARP_HOP_COUNT:
+                default:
+		    print_unknown_data(tptr, "\n\t\t  ", 2 + tlv_len*2);
+                    break;
+                }
+                len -= 2 + tlv_len*2;
+                tptr += 2 + tlv_len*2;
+            }
+	}
+	break;
+
+    case VTP_ADV_REQUEST:
+
+	/*
+	 *  ADVERTISEMENT REQUEST
+	 *
+	 *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |     Version   |     Code      |   Reserved    |    MmgtD Len  |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                    Management Domain Name                     |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *  |                          Start value                          |
+	 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	 *
+	 */
+
+	printf("\n\tStart value: %u", EXTRACT_32BITS(tptr));
+	break;
+
+    case VTP_JOIN_MESSAGE:
+
+	/* FIXME - Could not find message format */
+	break;
+
+    default:
+	break;
+    }
+
+    return;
+
+ trunc:
+    printf("[|vtp]");
+}
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 4
+ * End:
+ */