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, 211 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-vqp.c b/freebsd/contrib/tcpdump/print-vqp.c
new file mode 100644
index 00000000..4dcc385c
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-vqp.c
@@ -0,0 +1,211 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1998-2006 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.
+ *
+ * support for the Cisco prop. VQP Protocol 
+ *
+ * Original code by Carles Kishimoto <Carles.Kishimoto@bsc.es>
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-vqp.c,v 1.3 2006-08-19 06:51:13 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "interface.h"
+#include "extract.h"
+#include "addrtoname.h"
+
+#define VQP_VERSION            		1
+#define VQP_EXTRACT_VERSION(x) ((x)&0xFF)
+
+/*
+ * VQP common header
+ *
+ *  0                   1                   2                   3
+ *  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
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |   Constant    | Packet type   |  Error Code   |    nitems     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                Packet Sequence Number (4 bytes)               |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+struct vqp_common_header_t {
+    u_int8_t version;
+    u_int8_t msg_type;
+    u_int8_t error_code;
+    u_int8_t nitems;
+    u_int8_t sequence[4];
+};
+
+struct vqp_obj_tlv_t {
+    u_int8_t obj_type[4];
+    u_int8_t obj_length[2];
+};
+
+#define VQP_OBJ_REQ_JOIN_PORT  0x01
+#define VQP_OBJ_RESP_VLAN      0x02
+#define VQP_OBJ_REQ_RECONFIRM  0x03
+#define VQP_OBJ_RESP_RECONFIRM 0x04
+
+static const struct tok vqp_msg_type_values[] = {
+    { VQP_OBJ_REQ_JOIN_PORT, "Request, Join Port"},
+    { VQP_OBJ_RESP_VLAN, "Response, VLAN"},
+    { VQP_OBJ_REQ_RECONFIRM, "Request, Reconfirm"},
+    { VQP_OBJ_RESP_RECONFIRM, "Response, Reconfirm"},
+    { 0, NULL}
+};
+
+static const struct tok vqp_error_code_values[] = {
+    { 0x00, "No error"},
+    { 0x03, "Access denied"},
+    { 0x04, "Shutdown port"},
+    { 0x05, "Wrong VTP domain"},
+    { 0, NULL}
+};
+
+/* FIXME the heading 0x0c looks ugly - those must be flags etc. */
+#define VQP_OBJ_IP_ADDRESS    0x0c01
+#define VQP_OBJ_PORT_NAME     0x0c02
+#define VQP_OBJ_VLAN_NAME     0x0c03
+#define VQP_OBJ_VTP_DOMAIN    0x0c04
+#define VQP_OBJ_ETHERNET_PKT  0x0c05
+#define VQP_OBJ_MAC_NULL      0x0c06
+#define VQP_OBJ_MAC_ADDRESS   0x0c08
+
+static const struct tok vqp_obj_values[] = {
+    { VQP_OBJ_IP_ADDRESS, "Client IP Address" },
+    { VQP_OBJ_PORT_NAME, "Port Name" },
+    { VQP_OBJ_VLAN_NAME, "VLAN Name" },
+    { VQP_OBJ_VTP_DOMAIN, "VTP Domain" },
+    { VQP_OBJ_ETHERNET_PKT, "Ethernet Packet" },
+    { VQP_OBJ_MAC_NULL, "MAC Null" },
+    { VQP_OBJ_MAC_ADDRESS, "MAC Address" },
+    { 0, NULL}
+};
+
+void
+vqp_print(register const u_char *pptr, register u_int len) 
+{
+    const struct vqp_common_header_t *vqp_common_header;
+    const struct vqp_obj_tlv_t *vqp_obj_tlv;
+
+    const u_char *tptr;
+    u_int16_t vqp_obj_len;
+    u_int32_t vqp_obj_type;
+    int tlen;
+    u_int8_t nitems;
+
+    tptr=pptr;
+    tlen = len;
+    vqp_common_header = (const struct vqp_common_header_t *)pptr;
+    TCHECK(*vqp_common_header);
+
+    /*
+     * Sanity checking of the header.
+     */
+    if (VQP_EXTRACT_VERSION(vqp_common_header->version) != VQP_VERSION) {
+	printf("VQP version %u packet not supported",
+               VQP_EXTRACT_VERSION(vqp_common_header->version));
+	return;
+    }
+
+    /* in non-verbose mode just lets print the basic Message Type */
+    if (vflag < 1) {
+        printf("VQPv%u %s Message, error-code %s (%u), length %u",
+               VQP_EXTRACT_VERSION(vqp_common_header->version),
+               tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
+               tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
+	       vqp_common_header->error_code,
+               len);
+        return;
+    }
+    
+    /* ok they seem to want to know everything - lets fully decode it */
+    nitems = vqp_common_header->nitems;
+    printf("\n\tVQPv%u, %s Message, error-code %s (%u), seq 0x%08x, items %u, length %u",
+           VQP_EXTRACT_VERSION(vqp_common_header->version),
+	   tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type),
+	   tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code),
+	   vqp_common_header->error_code,
+           EXTRACT_32BITS(&vqp_common_header->sequence),
+           nitems,
+           len);
+
+    /* skip VQP Common header */
+    tptr+=sizeof(const struct vqp_common_header_t);
+    tlen-=sizeof(const struct vqp_common_header_t);
+
+    while (nitems > 0 && tlen > 0) {
+
+        vqp_obj_tlv = (const struct vqp_obj_tlv_t *)tptr;
+        vqp_obj_type = EXTRACT_32BITS(vqp_obj_tlv->obj_type);
+        vqp_obj_len = EXTRACT_16BITS(vqp_obj_tlv->obj_length);
+        tptr+=sizeof(struct vqp_obj_tlv_t);
+        tlen-=sizeof(struct vqp_obj_tlv_t);
+
+        printf("\n\t  %s Object (0x%08x), length %u, value: ",
+               tok2str(vqp_obj_values, "Unknown", vqp_obj_type),
+               vqp_obj_type, vqp_obj_len);
+
+        /* basic sanity check */
+        if (vqp_obj_type == 0 || vqp_obj_len ==0) {
+            return;
+        }
+
+        /* did we capture enough for fully decoding the object ? */
+        if (!TTEST2(*tptr, vqp_obj_len)) 
+            goto trunc;
+
+        switch(vqp_obj_type) {
+	case VQP_OBJ_IP_ADDRESS:
+            printf("%s (0x%08x)", ipaddr_string(tptr), EXTRACT_32BITS(tptr));
+            break;
+            /* those objects have similar semantics - fall through */
+        case VQP_OBJ_PORT_NAME:
+	case VQP_OBJ_VLAN_NAME:
+	case VQP_OBJ_VTP_DOMAIN:
+	case VQP_OBJ_ETHERNET_PKT:
+            safeputs((const char *)tptr, vqp_obj_len);
+            break;
+            /* those objects have similar semantics - fall through */
+	case VQP_OBJ_MAC_ADDRESS:
+	case VQP_OBJ_MAC_NULL:
+	      printf("%s", etheraddr_string(tptr));
+              break;
+        default:
+            if (vflag <= 1)
+                print_unknown_data(tptr, "\n\t    ", vqp_obj_len);
+            break;
+        }
+	tptr += vqp_obj_len;
+	tlen -= vqp_obj_len;
+	nitems--;
+    }
+    return;
+trunc:
+    printf("\n\t[|VQP]");
+}