* Routines for Mobile IP dissection
* Copyright 2000, Stefan Raab <sraab@cisco.com>
*
- * $Id: packet-mip.c,v 1.28 2002/04/29 08:20:09 guy Exp $
+ * $Id: packet-mip.c,v 1.33 2002/08/28 21:00:20 jmayer Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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.
#include <stdio.h>
#include <stdlib.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-
#include <string.h>
#include <glib.h>
#include <time.h>
-#ifdef NEED_SNPRINTF_H
-# include "snprintf.h"
-#endif
-
#include <epan/packet.h>
/* Initialize the protocol and registered fields */
};
/* Code to dissect extensions */
static void
-dissect_mip_extensions( tvbuff_t *tvb, int offset, packet_info *pinfo,
- proto_tree *tree)
+dissect_mip_extensions( tvbuff_t *tvb, int offset, proto_tree *tree)
{
proto_item *ti;
proto_tree *exts_tree=NULL;
ext_len = tvb_get_guint8(tvb, offset + 1);
hdrLen = 2;
}
-
+
ti = proto_tree_add_text(exts_tree, tvb, offset, ext_len + hdrLen,
"Extension: %s",
val_to_str(ext_type, mip_ext_types,
FALSE);
break;
case MN_NAI_EXT:
- proto_tree_add_item(ext_tree, hf_mip_next_nai, tvb, offset,
+ proto_tree_add_item(ext_tree, hf_mip_next_nai, tvb, offset,
ext_len, FALSE);
break;
/* Key */
proto_tree_add_item(ext_tree, hf_mip_aext_auth, tvb, offset + 4,
ext_len - 4, FALSE);
-
+
break;
case OLD_CVSE_EXT: /* RFC 3115 */
case CVSE_EXT: /* RFC 3115 */
guint8 flags;
nstime_t ident_time;
size_t offset=0;
-
+
/* Make entries in Protocol column and Info column on summary display */
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
+
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MobileIP");
- if (check_col(pinfo->cinfo, COL_INFO))
+ if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
type = tvb_get_guint8(tvb, offset);
switch (type) {
case REGISTRATION_REQUEST:
- if (check_col(pinfo->cinfo, COL_INFO))
- col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Request: HAddr=%s COA=%s",
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Request: HAddr=%s COA=%s",
ip_to_str(tvb_get_ptr(tvb, 4, 4)),
ip_to_str(tvb_get_ptr(tvb,12,4)));
-
+
if (tree) {
ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, FALSE);
mip_tree = proto_item_add_subtree(ti, ett_mip);
-
+
/* type */
proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type);
offset++;
-
+
/* flags */
flags = tvb_get_guint8(tvb, offset);
tf = proto_tree_add_uint(mip_tree, hf_mip_flags, tvb,
/* lifetime */
proto_tree_add_item(mip_tree, hf_mip_life, tvb, offset, 2, FALSE);
offset +=2;
-
+
/* home address */
proto_tree_add_item(mip_tree, hf_mip_homeaddr, tvb, offset, 4, FALSE);
offset += 4;
-
+
/* home agent address */
proto_tree_add_item(mip_tree, hf_mip_haaddr, tvb, offset, 4, FALSE);
offset += 4;
-
+
/* Care of Address */
proto_tree_add_item(mip_tree, hf_mip_coa, tvb, offset, 4, FALSE);
offset += 4;
ident_time.nsecs = tvb_get_ntohl(tvb,20)*1000;
proto_tree_add_time(mip_tree, hf_mip_ident, tvb, offset, 8, &ident_time);
offset += 8;
-
+
} /* if tree */
break;
case REGISTRATION_REPLY:
- if (check_col(pinfo->cinfo, COL_INFO))
- col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Reply: HAddr=%s, Code=%u",
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Reply: HAddr=%s, Code=%u",
ip_to_str(tvb_get_ptr(tvb,4,4)), tvb_get_guint8(tvb,1));
-
+
if (tree) {
/* Add Subtree */
ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, FALSE);
mip_tree = proto_item_add_subtree(ti, ett_mip);
-
+
/* Type */
proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type);
offset++;
-
+
/* Reply Code */
proto_tree_add_item(mip_tree, hf_mip_code, tvb, offset, 1, FALSE);
offset++;
proto_tree_add_time(mip_tree, hf_mip_ident, tvb, offset, 8, &ident_time);
offset += 8;
} /* if tree */
-
+
break;
} /* End switch */
if (tree) {
- if (tvb_offset_exists(tvb, offset))
- dissect_mip_extensions(tvb, offset, pinfo, mip_tree);
+ if (tvb_reported_length_remaining(tvb, offset) > 0)
+ dissect_mip_extensions(tvb, offset, mip_tree);
}
} /* dissect_mip */
/* Register the protocol with Ethereal */
void proto_register_mip(void)
-{
+{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_mip_type,
{ "Message Type", "mip.type",
- FT_UINT8, BASE_DEC, VALS(mip_types), 0,
+ FT_UINT8, BASE_DEC, VALS(mip_types), 0,
"Mobile IP Message type.", HFILL }
},
{ &hf_mip_flags,
{ &hf_mip_s,
{"Simultaneous Bindings", "mip.s",
- FT_BOOLEAN, 8, NULL, 128,
+ FT_BOOLEAN, 8, NULL, 128,
"Simultaneous Bindings Allowed", HFILL }
},
{ &hf_mip_b,
{"Broadcast Datagrams", "mip.b",
- FT_BOOLEAN, 8, NULL, 64,
+ FT_BOOLEAN, 8, NULL, 64,
"Broadcast Datagrams requested", HFILL }
},
{ &hf_mip_d,
{ "Co-lcated Care-of Address", "mip.d",
- FT_BOOLEAN, 8, NULL, 32,
+ FT_BOOLEAN, 8, NULL, 32,
"MN using Co-located Care-of address", HFILL }
},
{ &hf_mip_m,
{"Minimal Encapsulation", "mip.m",
- FT_BOOLEAN, 8, NULL, 16,
+ FT_BOOLEAN, 8, NULL, 16,
"MN wants Minimal encapsulation", HFILL }
},
{ &hf_mip_g,
{"GRE", "mip.g",
- FT_BOOLEAN, 8, NULL, 8,
+ FT_BOOLEAN, 8, NULL, 8,
"MN wants GRE encapsulation", HFILL }
},
{ &hf_mip_v,
{ "Van Jacobson", "mip.v",
- FT_BOOLEAN, 8, NULL, 4,
+ FT_BOOLEAN, 8, NULL, 4,
"Van Jacobson", HFILL }
},
{ &hf_mip_t,
{ "Reverse Tunneling", "mip.t",
- FT_BOOLEAN, 8, NULL, 2,
+ FT_BOOLEAN, 8, NULL, 2,
"Reverse tunneling requested", HFILL }
},
{ &hf_mip_code,
{ "Reply Code", "mip.code",
- FT_UINT8, BASE_DEC, VALS(mip_reply_codes), 0,
+ FT_UINT8, BASE_DEC, VALS(mip_reply_codes), 0,
"Mobile IP Reply code.", HFILL }
},
{ &hf_mip_life,
{ "Lifetime", "mip.life",
- FT_UINT16, BASE_DEC, NULL, 0,
+ FT_UINT16, BASE_DEC, NULL, 0,
"Mobile IP Lifetime.", HFILL }
},
{ &hf_mip_homeaddr,
{ "Home Address", "mip.homeaddr",
- FT_IPv4, BASE_NONE, NULL, 0,
+ FT_IPv4, BASE_NONE, NULL, 0,
"Mobile Node's home address.", HFILL }
},
-
+
{ &hf_mip_haaddr,
{ "Home Agent", "mip.haaddr",
- FT_IPv4, BASE_NONE, NULL, 0,
+ FT_IPv4, BASE_NONE, NULL, 0,
"Home agent IP Address.", HFILL }
},
{ &hf_mip_coa,
{ "Care of Address", "mip.coa",
- FT_IPv4, BASE_NONE, NULL, 0,
+ FT_IPv4, BASE_NONE, NULL, 0,
"Care of Address.", HFILL }
},
{ &hf_mip_ident,
{ "Identification", "mip.ident",
- FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0,
+ FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0,
"MN Identification.", HFILL }
},
{ &hf_mip_ext_type,
{ "Extension Type", "mip.ext.type",
- FT_UINT8, BASE_DEC, VALS(mip_ext_types), 0,
+ FT_UINT8, BASE_DEC, VALS(mip_ext_types), 0,
"Mobile IP Extension Type.", HFILL }
},
{ &hf_mip_ext_stype,
{ "Gen Auth Ext SubType", "mip.ext.auth.subtype",
- FT_UINT8, BASE_DEC, VALS(mip_ext_stypes), 0,
+ FT_UINT8, BASE_DEC, VALS(mip_ext_stypes), 0,
"Mobile IP Auth Extension Sub Type.", HFILL }
},
{ &hf_mip_ext_len,
git.samba.org / obnox / wireshark / wip.git / blobdiff