From Teemu Rinta-aho: draft 20 MIPv6 support (now in a file of its own).

svn path=/trunk/; revision=7071

1 files changed, 688 insertions, 0 deletions

diff --git a/packet-mip6.c b/packet-mip6.c
new file mode 100644
index 0000000000..e331dc936b
--- /dev/null
+++ b/packet-mip6.c
@@ -0,0 +1,688 @@
+/* packet-mip6.c
+ *
+ * $Id: packet-mip6.c,v 1.1 2003/02/04 20:16:57 guy Exp $
+ *
+ * Routines for Mobile IPv6 dissection (draft-ietf-mobileip-ipv6-20.txt)
+ * Copyright 2003 Oy L M Ericsson Ab <teemu.rinta-aho@ericsson.fi>
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <epan/packet.h>
+
+#include "ipproto.h"
+#include "packet-mip6.h"
+
+/* Initialize the protocol and registered header fields */
+static int proto_mip6 = -1;
+static int hf_mip6_proto = -1;
+static int hf_mip6_hlen = -1;
+static int hf_mip6_mhtype = -1;
+static int hf_mip6_reserved = -1;
+static int hf_mip6_csum = -1;
+
+static int hf_mip6_hoti_cookie = -1;
+
+static int hf_mip6_coti_cookie = -1;
+
+static int hf_mip6_hot_nindex = -1;
+static int hf_mip6_hot_cookie = -1;
+static int hf_mip6_hot_token = -1;
+
+static int hf_mip6_cot_nindex = -1;
+static int hf_mip6_cot_cookie = -1;
+static int hf_mip6_cot_token = -1;
+
+static int hf_mip6_bu_seqnr = -1;
+static int hf_mip6_bu_a_flag = -1;
+static int hf_mip6_bu_h_flag = -1;
+static int hf_mip6_bu_l_flag = -1;
+static int hf_mip6_bu_k_flag = -1;
+static int hf_mip6_bu_lifetime = -1;
+
+static int hf_mip6_ba_status = -1;
+static int hf_mip6_ba_k_flag = -1;
+static int hf_mip6_ba_seqnr = -1;
+static int hf_mip6_ba_lifetime = -1;
+
+static int hf_mip6_be_status = -1;
+static int hf_mip6_be_haddr = -1;
+
+static int hf_mip6_bra_interval = -1;
+
+static int hf_mip6_acoa_acoa = -1;
+
+static int hf_mip6_ni_hni = -1;
+static int hf_mip6_ni_cni = -1;
+
+static int hf_mip6_bad_auth = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_mip6 = -1;
+
+/* Functions to dissect the mobility headers */
+
+static int
+dissect_mip6_brr(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Binding Error");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_BRR_LEN, "Binding Refresh Request");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+    }
+
+    return MIP6_DATA_OFF+MIP6_BRR_LEN;
+}
+
+static int
+dissect_mip6_hoti(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Home Test Init");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_HOTI_LEN, "Home Test Init");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_hoti_cookie, tvb,
+                            MIP6_HOTI_COOKIE_OFF, MIP6_HOTI_COOKIE_LEN, FALSE);
+    }
+
+    return MIP6_DATA_OFF+MIP6_HOTI_LEN;
+}
+
+static int
+dissect_mip6_coti(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Care-of Test Init");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_COTI_LEN, "Care-of Test Init");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_coti_cookie, tvb,
+                            MIP6_COTI_COOKIE_OFF, MIP6_COTI_COOKIE_LEN, FALSE);
+    }
+
+    return MIP6_DATA_OFF+MIP6_COTI_LEN;
+}
+
+static int
+dissect_mip6_hot(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Home Test");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_HOT_LEN, "Home Test");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_hot_nindex, tvb,
+                            MIP6_HOT_INDEX_OFF, MIP6_HOT_INDEX_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_hot_cookie, tvb,
+                            MIP6_HOT_COOKIE_OFF, MIP6_HOT_COOKIE_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_hot_token, tvb,
+                            MIP6_HOT_TOKEN_OFF, MIP6_HOT_TOKEN_LEN, FALSE);
+    }
+
+    return MIP6_DATA_OFF+MIP6_HOT_LEN;
+}
+
+static int
+dissect_mip6_cot(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Care-of Test");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_COT_LEN, "Care-of Test");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_cot_nindex, tvb,
+                            MIP6_COT_INDEX_OFF, MIP6_COT_INDEX_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_cot_cookie, tvb,
+                            MIP6_COT_COOKIE_OFF, MIP6_COT_COOKIE_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_hot_token, tvb,
+                            MIP6_COT_TOKEN_OFF, MIP6_COT_TOKEN_LEN, FALSE);
+    }
+
+    return MIP6_DATA_OFF+MIP6_COT_LEN;
+}
+
+static int
+dissect_mip6_bu(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+    int lifetime;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Binding Update");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_BU_LEN, "Binding Update");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_bu_seqnr, tvb,
+                            MIP6_BU_SEQNR_OFF, MIP6_BU_SEQNR_LEN, FALSE);
+
+        proto_tree_add_item(data_tree, hf_mip6_bu_a_flag, tvb, 
+                            MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_bu_h_flag, tvb, 
+                            MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_bu_l_flag, tvb, 
+                            MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_bu_k_flag, tvb, 
+                            MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
+
+        lifetime = tvb_get_ntohs(tvb, MIP6_BU_LIFETIME_OFF);
+        proto_tree_add_uint_format(data_tree, hf_mip6_bu_lifetime, tvb,
+                                   MIP6_BU_LIFETIME_OFF, 
+                                   MIP6_BU_LIFETIME_LEN, lifetime,
+                                   "Lifetime: %d (%ld seconds)",
+                                   lifetime, (long)lifetime * 4);
+    }
+
+    return MIP6_DATA_OFF+MIP6_BU_LEN;
+}
+
+static int
+dissect_mip6_ba(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+    int lifetime;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Binding Acknowledgement");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_BA_LEN, "Binding Acknowledgement");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_ba_status, tvb,
+                            MIP6_BA_STATUS_OFF, MIP6_BA_STATUS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_ba_k_flag, tvb, 
+                            MIP6_BA_FLAGS_OFF, MIP6_BA_FLAGS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_ba_seqnr, tvb,
+                            MIP6_BA_SEQNR_OFF, MIP6_BA_SEQNR_LEN, FALSE);
+        lifetime = tvb_get_ntohs(tvb, MIP6_BA_LIFETIME_OFF);
+        proto_tree_add_uint_format(data_tree, hf_mip6_ba_lifetime, tvb,
+                                   MIP6_BA_LIFETIME_OFF, 
+                                   MIP6_BA_LIFETIME_LEN, lifetime,
+                                   "Lifetime: %d (%ld seconds)",
+                                   lifetime, (long)lifetime * 4);
+    }
+
+    return MIP6_DATA_OFF+MIP6_BA_LEN;
+}
+
+static int
+dissect_mip6_be(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+    
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Binding Error");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_BE_LEN, "Binding Error");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        proto_tree_add_item(data_tree, hf_mip6_be_status, tvb,
+                            MIP6_BE_STATUS_OFF, MIP6_BE_STATUS_LEN, FALSE);
+        proto_tree_add_item(data_tree, hf_mip6_be_haddr, tvb,
+                            MIP6_BE_HOA_OFF, MIP6_BE_HOA_LEN, FALSE);
+    }
+
+    return MIP6_DATA_OFF+MIP6_BE_LEN;
+}
+
+static int
+dissect_mip6_unknown(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
+{
+    proto_tree *data_tree = NULL;
+    proto_item *ti;
+
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_set_str(pinfo->cinfo, COL_INFO, "Unknown MH Type");
+
+    if (mip6_tree) {
+        ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF, 
+                                 MIP6_DATA_OFF+1, "Unknown MH Type");
+        data_tree = proto_item_add_subtree(ti, ett_mip6);
+    }
+
+    return MIP6_DATA_OFF+1;
+}
+
+/* Functions to dissect the mobility options */
+
+static int
+dissect_mip6_opt_pad1(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    proto_tree_add_text(opts_tree, tvb, offset, len, "Pad1");
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_padn(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    proto_tree_add_text(opts_tree, tvb, offset, len, "PadN: %u bytes", len);
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_bra(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    proto_tree *opt_tree = NULL;
+    proto_item *ti;
+    int len, ri;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    ti = proto_tree_add_text(opts_tree, tvb, offset, len, 
+                             "Binding Refresh Advice");
+    opt_tree = proto_item_add_subtree(ti, ett_mip6);
+    
+    ri = tvb_get_ntohs(tvb, offset+MIP6_BRA_RI_OFF);
+    proto_tree_add_uint_format(opt_tree, hf_mip6_bra_interval, tvb,
+                               offset+MIP6_BRA_RI_OFF, MIP6_BRA_RI_LEN, 
+                               ri, "Refresh interval: %d (%ld seconds)",
+                               ri, (long)ri * 4);
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_acoa(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    proto_tree *opt_tree = NULL;
+    proto_item *ti;
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    ti = proto_tree_add_text(opts_tree, tvb, offset, len,
+                             "Alternate Care-of Address");
+    opt_tree = proto_item_add_subtree(ti, ett_mip6);
+
+    proto_tree_add_item(opt_tree, hf_mip6_acoa_acoa, tvb,
+                        offset+MIP6_ACOA_ACOA_OFF, MIP6_ACOA_ACOA_LEN, FALSE);
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_ni(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    proto_tree *opt_tree = NULL;
+    proto_item *ti;
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    ti = proto_tree_add_text(opts_tree, tvb, offset, len, "Nonce Indices");
+    opt_tree = proto_item_add_subtree(ti, ett_mip6);
+
+    proto_tree_add_item(opt_tree, hf_mip6_ni_hni, tvb,
+                        offset+MIP6_NI_HNI_OFF, MIP6_NI_HNI_LEN, FALSE);
+    proto_tree_add_item(opt_tree, hf_mip6_ni_cni, tvb,
+                        offset+MIP6_NI_CNI_OFF, MIP6_NI_CNI_LEN, FALSE);
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_bad(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    proto_tree *opt_tree = NULL;
+    proto_item *ti;
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    ti = proto_tree_add_text(opts_tree, tvb, offset, len,
+                             "Binding Authorization Data");
+    opt_tree = proto_item_add_subtree(ti, ett_mip6);
+
+    proto_tree_add_item(opt_tree, hf_mip6_bad_auth, tvb,
+                        offset+MIP6_BAD_AUTH_OFF, MIP6_BAD_AUTH_LEN, FALSE);
+
+    return offset+len;
+}
+
+static int
+dissect_mip6_opt_unknown(tvbuff_t *tvb, proto_tree *opts_tree, int offset)
+{
+    int len;
+
+    len = (tvb_get_guint8(tvb, offset + 1)) + 2;
+    proto_tree_add_text(opts_tree, tvb, offset, len, "Unknown option");
+
+    return offset+len;
+}
+
+/* Function to dissect mobility options */
+static int
+dissect_mip6_options(tvbuff_t *tvb, proto_tree *mip6_tree, int offset, int len)
+{
+    proto_tree *opts_tree = NULL;
+    proto_item *ti;
+    guint8     type;
+
+    if (!mip6_tree)
+        return len;
+
+    ti = proto_tree_add_text(mip6_tree, tvb, offset, len - offset, 
+                             "Mobility Options");
+    opts_tree = proto_item_add_subtree(ti, ett_mip6);
+
+    while (offset < len) {
+        type = tvb_get_guint8(tvb, offset);
+        switch (type) {
+        case PAD1:
+            offset = dissect_mip6_opt_pad1(tvb, opts_tree, offset);
+            break;
+        case PADN:
+            offset = dissect_mip6_opt_padn(tvb, opts_tree, offset);
+            break;
+        case BRA:
+            offset = dissect_mip6_opt_bra(tvb, opts_tree, offset);
+            break;
+        case ACOA:
+            offset = dissect_mip6_opt_acoa(tvb, opts_tree, offset);
+            break;
+        case NI:
+            offset = dissect_mip6_opt_ni(tvb, opts_tree, offset);
+            break;
+        case BAD:
+            offset = dissect_mip6_opt_bad(tvb, opts_tree, offset);
+            break;
+        default:
+            dissect_mip6_opt_unknown(tvb, opts_tree, offset);
+            offset = len;
+        }
+    }
+
+    return len;
+}
+
+/* Function that dissects the whole MIPv6 packet */
+static void
+dissect_mip6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+    proto_tree *mip6_tree = NULL;
+    proto_item *ti;
+    guint8     type;
+    guint      len, offset = 0;
+
+    /* Make entries in Protocol column and Info column on summary display */
+    if (check_col(pinfo->cinfo, COL_PROTOCOL))
+        col_set_str(pinfo->cinfo, COL_PROTOCOL, "MIPv6");
+    if (check_col(pinfo->cinfo, COL_INFO))
+        col_clear(pinfo->cinfo, COL_INFO);
+
+    len = (tvb_get_guint8(tvb, MIP6_HLEN_OFF) + 1) * 8;
+    if (tree) {
+        ti = proto_tree_add_item(tree, proto_mip6, tvb, 0, len, FALSE);
+        mip6_tree = proto_item_add_subtree(ti, ett_mip6);
+
+        /* Process header fields */
+        proto_tree_add_uint_format(mip6_tree, hf_mip6_proto, tvb,
+                                   MIP6_PROTO_OFF, 1,
+                                   tvb_get_guint8(tvb, MIP6_PROTO_OFF),
+                                   "Payload protocol: %s (0x%02x)",
+                                   ipprotostr(
+                                       tvb_get_guint8(tvb, MIP6_PROTO_OFF)), 
+                                   tvb_get_guint8(tvb, MIP6_PROTO_OFF));
+
+        proto_tree_add_uint_format(mip6_tree, hf_mip6_hlen, tvb,
+                                   MIP6_HLEN_OFF, 1,
+                                   tvb_get_guint8(tvb, MIP6_HLEN_OFF),
+                                   "Header length: %u (%u bytes)",
+                                   tvb_get_guint8(tvb, MIP6_HLEN_OFF),
+                                   len);
+
+        proto_tree_add_item(mip6_tree, hf_mip6_mhtype, tvb,
+                            MIP6_TYPE_OFF, 1, FALSE);
+
+        proto_tree_add_item(mip6_tree, hf_mip6_reserved, tvb,
+                            MIP6_RES_OFF, 1, FALSE);
+
+        proto_tree_add_item(mip6_tree, hf_mip6_csum, tvb,
+                            MIP6_CSUM_OFF, 2, FALSE);
+    }
+
+    /* Process mobility header */
+    type = tvb_get_guint8(tvb, MIP6_TYPE_OFF);
+    switch (type) {
+    case BRR:
+        offset = dissect_mip6_brr(tvb, mip6_tree, pinfo);
+        break;
+    case HOTI:
+        offset = dissect_mip6_hoti(tvb, mip6_tree, pinfo);
+        break;
+    case COTI:
+        offset = dissect_mip6_coti(tvb, mip6_tree, pinfo);
+        break;
+    case HOT:
+        offset = dissect_mip6_hot(tvb, mip6_tree, pinfo);
+        break;
+    case COT:
+        offset = dissect_mip6_cot(tvb, mip6_tree, pinfo);
+        break;
+    case BU:
+        offset = dissect_mip6_bu(tvb, mip6_tree, pinfo);
+        break;
+    case BA:
+        offset = dissect_mip6_ba(tvb, mip6_tree, pinfo);
+        break;
+    case BE:
+        offset = dissect_mip6_be(tvb, mip6_tree, pinfo);
+        break;
+    default:
+        dissect_mip6_unknown(tvb, mip6_tree, pinfo);
+        offset = len;
+        break;
+    }
+
+    /* Process mobility options */
+    if (offset < len)
+        dissect_mip6_options(tvb, mip6_tree, offset, len);
+}
+
+/* Register the protocol with Ethereal */
+void 
+proto_register_mip6(void)
+{    
+    /* Setup list of header fields */
+    static hf_register_info hf[] = {
+
+        { &hf_mip6_proto,        { "Payload protocol", "mip6.proto",
+                                   FT_UINT8, BASE_DEC, NULL, 0,
+                                   "Payload protocol", HFILL }},
+        { &hf_mip6_hlen,         { "Header length", "mip6.hlen",
+                                   FT_UINT8, BASE_DEC, NULL, 0,
+                                   "Header length", HFILL }},
+        { &hf_mip6_mhtype,       { "Mobility Header Type", "mip6.mhtype",
+                                   FT_UINT8, BASE_DEC, VALS(mip6_mh_types), 0,
+                                   "Mobility Header Type", HFILL }},
+        { &hf_mip6_reserved,     { "Reserved", "mip6.reserved",
+                                   FT_UINT8, BASE_HEX, NULL, 0,
+                                   "Reserved", HFILL }},
+        { &hf_mip6_csum,         { "Checksum", "mip6.csum",
+                                   FT_UINT16, BASE_HEX, NULL, 0,
+                                   "Header Checksum", HFILL }},
+        
+        { &hf_mip6_hoti_cookie,  { "Home Init Cookie", "mip6.hoti.cookie",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Home Init Cookie", HFILL }},
+        
+        { &hf_mip6_coti_cookie,  { "Care-of Init Cookie", "mip6.coti.cookie",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Care-of Init Cookie", HFILL }},
+        
+        { &hf_mip6_hot_nindex,   { "Home Nonce Index", "mip6.hot.nindex",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Home Nonce Index", HFILL }},
+        { &hf_mip6_hot_cookie,   { "Home Init Cookie", "mip6.hot.cookie",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Home Init Cookie", HFILL }},
+        { &hf_mip6_hot_token,    { "Home Keygen Token", "mip6.hot.token",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Home Keygen Token", HFILL }},
+        
+        { &hf_mip6_cot_nindex,   { "Care-of Nonce Index", "mip6.cot.nindex",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Care-of Nonce Index", HFILL }},
+        { &hf_mip6_cot_cookie,   { "Care-of Init Cookie", "mip6.cot.cookie",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Care-of Init Cookie", HFILL }},
+        { &hf_mip6_cot_token,    { "Care-of Keygen Token", "mip6.cot.token",
+                                   FT_UINT64, BASE_HEX, NULL, 0,
+                                   "Care-of Keygen Token", HFILL }},
+        
+        { &hf_mip6_bu_seqnr,     { "Sequence number", "mip6.bu.seqnr",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Sequence number", HFILL }},
+        { &hf_mip6_bu_a_flag,    { "Acknowledge (A) flag", "mip6.bu.a_flag",
+                                   FT_BOOLEAN, 8, TFS(&mip6_bu_a_flag_value),
+                                   0x80, "Acknowledge (A) flag", HFILL }},
+        { &hf_mip6_bu_h_flag,    { "Home Registration (H) flag", 
+                                   "mip6.bu.h_flag",
+                                   FT_BOOLEAN, 8, TFS(&mip6_bu_h_flag_value),
+                                   0x40, "Home Registration (H) flag", HFILL }},
+        { &hf_mip6_bu_l_flag,    { "Link-Local Compatibility (L) flag", 
+                                   "mip6.bu.l_flag",
+                                   FT_BOOLEAN, 8, TFS(&mip6_bu_l_flag_value),
+                                   0x20, "Home Registration (H) flag", HFILL }},
+        { &hf_mip6_bu_k_flag,    { "Key Management Compatibility (K) flag", 
+                                   "mip6.bu.k_flag",
+                                   FT_BOOLEAN, 8, TFS(&mip6_bu_k_flag_value),
+                                   0x10, "Key Management Compatibility (K) flag", 
+                                   HFILL }},
+        { &hf_mip6_bu_lifetime,  { "Lifetime", "mip6.bu.lifetime",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Lifetime", HFILL }},
+        
+        { &hf_mip6_ba_status,    { "Status", "mip6.ba.status",
+                                   FT_UINT8, BASE_DEC,
+                                   VALS(&mip6_ba_status_value), 0,
+                                   "Binding Acknowledgement status", HFILL }},
+        { &hf_mip6_ba_k_flag,    { "Key Management Compatibility (K) flag", 
+                                   "mip6.ba.k_flag",
+                                   FT_BOOLEAN, 8, TFS(&mip6_bu_k_flag_value),
+                                   0x80, "Key Management Compatibility (K) flag", 
+                                   HFILL }},
+        { &hf_mip6_ba_seqnr,     { "Sequence number", "mip6.ba.seqnr",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Sequence number", HFILL }},
+        { &hf_mip6_ba_lifetime,  { "Lifetime", "mip6.ba.lifetime",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Lifetime", HFILL }},
+        
+        { &hf_mip6_be_status,    { "Status", "mip6.be.status",
+                                   FT_UINT8, BASE_DEC,
+                                   VALS(&mip6_be_status_value), 0,
+                                   "Binding Error status", HFILL }},
+        { &hf_mip6_be_haddr,     { "Home Address", "mip6.be.haddr",
+                                   FT_IPv6, BASE_HEX, NULL, 0,
+                                   "Home Address", HFILL }},
+        
+        { &hf_mip6_bra_interval, { "Refresh interval", "mip6.bra.interval",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Refresh interval", HFILL }},
+
+        { &hf_mip6_acoa_acoa,    { "Alternate care-of address", "mip6.acoa.acoa",
+                                   FT_IPv6, BASE_HEX, NULL, 0,
+                                   "Alternate Care-of address", HFILL }},
+        
+        { &hf_mip6_ni_hni,       { "Home nonce index", "mip6.ni.hni",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Home nonce index", HFILL }},
+        { &hf_mip6_ni_cni,       { "Care-of nonce index", "mip6.ni.cni",
+                                   FT_UINT16, BASE_DEC, NULL, 0,
+                                   "Care-of nonce index", HFILL }},
+
+        { &hf_mip6_bad_auth,     { "Authenticator", "mip6.bad.auth",
+                                   FT_BYTES, BASE_HEX, NULL, 0,
+                                   "Care-of nonce index", HFILL }}
+    };
+
+    /* Setup protocol subtree array */
+    static gint *ett[] = {
+        &ett_mip6
+    };
+    
+    /* Register the protocol name and description */
+    proto_mip6 = proto_register_protocol("Mobile IPv6", "MIPv6", "mipv6");
+    
+    /* Register the dissector by name */
+    /* register_dissector("mipv6", dissect_mip6, proto_mip6); */
+    
+    /* Required function calls to register the header fields and subtrees used */
+    proto_register_field_array(proto_mip6, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+};
+
+void
+proto_reg_handoff_mip6(void)
+{
+    dissector_handle_t mip6_handle;
+    
+    /* mip6_handle = find_dissector("mipv6"); */
+    mip6_handle = create_dissector_handle(dissect_mip6, proto_mip6);
+    dissector_add("ip.proto", IP_PROTO_MIPV6, mip6_handle);
+}