forked from osmocom/wireshark
2153 lines
76 KiB
C
2153 lines
76 KiB
C
/*
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* packet-3g-a11.c
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* Routines for CDMA2000 A11 packet trace
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* Copyright 2002, Ryuji Somegawa <somegawa@wide.ad.jp>
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* packet-3g-a11.c was written based on 'packet-mip.c'.
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*
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* packet-3g-a11.c updated by Ravi Valmikam for 3GPP2 TIA-878-A
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* Copyright 2005, Ravi Valmikam <rvalmikam@airvananet.com>
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*
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* packet-mip.c
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* Routines for Mobile IP dissection
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* Copyright 2000, Stefan Raab <sraab@cisco.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*Ref:
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* http://www.3gpp2.org/Public_html/specs/A.S0009-C_v1.0_070801.pdf
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* http://www.3gpp2.org/Public_html/specs/A.S0017-D_v1.0_070624.pdf (IOS 5.1)
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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/* Include vendor id translation */
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#include <epan/sminmpec.h>
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#include "packet-ntp.h"
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/* Initialize the protocol and registered fields */
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static int proto_a11 = -1;
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static int hf_a11_type = -1;
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static int hf_a11_flags = -1;
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static int hf_a11_s = -1;
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static int hf_a11_b = -1;
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static int hf_a11_d = -1;
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static int hf_a11_m = -1;
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static int hf_a11_g = -1;
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static int hf_a11_v = -1;
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static int hf_a11_t = -1;
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static int hf_a11_code = -1;
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static int hf_a11_status = -1;
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static int hf_a11_life = -1;
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static int hf_a11_homeaddr = -1;
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static int hf_a11_haaddr = -1;
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static int hf_a11_coa = -1;
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static int hf_a11_ident = -1;
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static int hf_a11_ext_type = -1;
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static int hf_a11_ext_stype = -1;
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static int hf_a11_ext_len = -1;
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static int hf_a11_ext = -1;
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static int hf_a11_aext_spi = -1;
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static int hf_a11_aext_auth = -1;
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static int hf_a11_next_nai = -1;
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static int hf_a11_ses_key = -1;
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static int hf_a11_ses_mnsrid = -1;
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static int hf_a11_ses_sidver = -1;
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static int hf_a11_ses_msid_type = -1;
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static int hf_a11_ses_msid_len = -1;
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static int hf_a11_ses_msid = -1;
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static int hf_a11_ses_ptype = -1;
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static int hf_a11_vse_vid = -1;
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static int hf_a11_vse_apptype = -1;
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static int hf_a11_vse_canid = -1;
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static int hf_a11_vse_panid = -1;
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static int hf_a11_vse_srvopt = -1;
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static int hf_a11_vse_qosmode = -1;
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static int hf_a11_vse_pdit = -1;
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static int hf_a11_vse_code = -1;
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static int hf_a11_vse_dormant = -1;
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static int hf_a11_vse_ppaddr = -1;
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/* Additional Session Information */
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static int hf_a11_ase_len_type = -1;
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static int hf_a11_ase_srid_type = -1;
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static int hf_a11_ase_servopt_type = -1;
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static int hf_a11_ase_gre_proto_type = -1;
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static int hf_a11_ase_gre_key = -1;
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static int hf_a11_ase_pcf_addr_key = -1;
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/* Forward QoS Information */
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static int hf_a11_fqi_length = -1;
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static int hf_a11_fqi_srid = -1;
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static int hf_a11_fqi_flags = -1;
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static int hf_a11_fqi_flowcount = -1;
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static int hf_a11_fqi_flowid = -1;
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static int hf_a11_fqi_entrylen = -1;
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static int hf_a11_fqi_dscp = -1;
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static int hf_a11_fqi_flowstate = -1;
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static int hf_a11_fqi_requested_qoslen = -1;
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static int hf_a11_fqi_requested_qos = -1;
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static int hf_a11_fqi_granted_qoslen = -1;
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static int hf_a11_fqi_granted_qos = -1;
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/* Reverse QoS Information */
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static int hf_a11_rqi_length = -1;
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static int hf_a11_rqi_srid = -1;
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static int hf_a11_rqi_flowcount = -1;
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static int hf_a11_rqi_flowid = -1;
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static int hf_a11_rqi_entrylen = -1;
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static int hf_a11_rqi_flowstate = -1;
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static int hf_a11_rqi_requested_qoslen = -1;
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static int hf_a11_rqi_requested_qos = -1;
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static int hf_a11_rqi_granted_qoslen = -1;
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static int hf_a11_rqi_granted_qos = -1;
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/* QoS Update Information */
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static int hf_a11_fqui_flowcount = -1;
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static int hf_a11_rqui_flowcount = -1;
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static int hf_a11_fqui_updated_qoslen = -1;
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static int hf_a11_fqui_updated_qos = -1;
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static int hf_a11_rqui_updated_qoslen = -1;
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static int hf_a11_rqui_updated_qos = -1;
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static int hf_a11_subsciber_profile = -1;
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static int hf_a11_subsciber_profile_len = -1;
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/* Initialize the subtree pointers */
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static gint ett_a11 = -1;
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static gint ett_a11_flags = -1;
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static gint ett_a11_ext = -1;
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static gint ett_a11_exts = -1;
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static gint ett_a11_radius = -1;
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static gint ett_a11_radiuses = -1;
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static gint ett_a11_ase = -1;
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static gint ett_a11_fqi_flowentry = -1;
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static gint ett_a11_rqi_flowentry = -1;
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static gint ett_a11_fqi_flags = -1;
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static gint ett_a11_fqi_entry_flags = -1;
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static gint ett_a11_rqi_entry_flags = -1;
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static gint ett_a11_fqui_flowentry = -1;
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static gint ett_a11_rqui_flowentry = -1;
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static gint ett_a11_subscriber_profile = -1;
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/* Port used for Mobile IP based Tunneling Protocol (A11) */
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#define UDP_PORT_3GA11 699
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typedef enum {
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REGISTRATION_REQUEST = 1,
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REGISTRATION_REPLY = 3,
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REGISTRATION_UPDATE = 20,
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REGISTRATION_ACK = 21,
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SESSION_UPDATE = 22,
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SESSION_ACK = 23,
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CAPABILITIES_INFO = 24,
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CAPABILITIES_INFO_ACK = 25
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} a11MessageTypes;
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static const value_string a11_types[] = {
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{REGISTRATION_REQUEST, "Registration Request"},
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{REGISTRATION_REPLY, "Registration Reply"},
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{REGISTRATION_UPDATE, "Registration Update"},
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{REGISTRATION_ACK, "Registration Ack"},
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{SESSION_UPDATE, "Session Update"},
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{SESSION_ACK, "Session Update Ack"},
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{CAPABILITIES_INFO, "Capabilities Info"},
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{CAPABILITIES_INFO_ACK, "Capabilities Info Ack"},
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{0, NULL},
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};
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static const value_string a11_ses_ptype_vals[] = {
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{0x8881, "Unstructured Byte Stream"},
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{0x88D2, "3GPP2 Packet"},
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{0, NULL},
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};
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static const value_string a11_reply_codes[]= {
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{0, "Reg Accepted"},
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{9, "Connection Update"},
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#if 0
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{1, "Reg Accepted, but Simultaneous Bindings Unsupported."},
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{64, "Reg Deny (FA)- Unspecified Reason"},
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{65, "Reg Deny (FA)- Administratively Prohibited"},
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{66, "Reg Deny (FA)- Insufficient Resources"},
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{67, "Reg Deny (FA)- MN failed Authentication"},
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{68, "Reg Deny (FA)- HA failed Authentication"},
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{69, "Reg Deny (FA)- Requested Lifetime too Long"},
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{70, "Reg Deny (FA)- Poorly Formed Request"},
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{71, "Reg Deny (FA)- Poorly Formed Reply"},
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{72, "Reg Deny (FA)- Requested Encapsulation Unavailable"},
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{73, "Reg Deny (FA)- VJ Compression Unavailable"},
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{74, "Reg Deny (FA)- Requested Reverse Tunnel Unavailable"},
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{75, "Reg Deny (FA)- Reverse Tunnel is Mandatory and 'T' Bit Not Set"},
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{76, "Reg Deny (FA)- Mobile Node Too Distant"},
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{79, "Reg Deny (FA)- Delivery Style Not Supported"},
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{80, "Reg Deny (FA)- Home Network Unreachable"},
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{81, "Reg Deny (FA)- HA Host Unreachable"},
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{82, "Reg Deny (FA)- HA Port Unreachable"},
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{88, "Reg Deny (FA)- HA Unreachable"},
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{96, "Reg Deny (FA)(NAI) - Non Zero Home Address Required"},
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{97, "Reg Deny (FA)(NAI) - Missing NAI"},
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{98, "Reg Deny (FA)(NAI) - Missing Home Agent"},
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{99, "Reg Deny (FA)(NAI) - Missing Home Address"},
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#endif
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{128, "Reg Deny (HA)- Unspecified"},
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{129, "Reg Deny (HA)- Administratively Prohibited"},
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{130, "Reg Deny (HA)- Insufficient Resources"},
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{131, "Reg Deny (HA)- PCF Failed Authentication"},
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/* {132, "Reg Deny (HA)- FA Failed Authentication"}, */
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{133, "Reg Deny (HA)- Identification Mismatch"},
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{134, "Reg Deny (HA)- Poorly Formed Request"},
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/* {135, "Reg Deny (HA)- Too Many Simultaneous Bindings"}, */
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{136, "Reg Deny (HA)- Unknown PDSN Address"},
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{137, "Reg Deny (HA)- Requested Reverse Tunnel Unavailable"},
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{138, "Reg Deny (HA)- Reverse Tunnel is Mandatory and 'T' Bit Not Set"},
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{139, "Reg Deny (HA)- Requested Encapsulation Unavailable"},
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{140, "Registration Denied - no CID available"},
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{141, "Reg Deny (HA)- unsupported Vendor ID / Application Type in CVSE"},
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{142, "Registration Denied - nonexistent A10 or IP flow"},
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{0, NULL},
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};
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static const value_string a11_ack_status[]= {
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{0, "Update Accepted"},
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{1, "Partial QoS updated"},
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{128, "Update Deny - Unspecified"},
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{131, "Update Deny - Sending Node Failed Authentication"},
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{133, "Update Deny - Registration ID Mismatch"},
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{134, "Update Deny - Poorly Formed Request"},
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{193, "Update Deny - Session Parameter Not Updated"},
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{253, "Update Denied - QoS profileID not supported"},
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{254, "Update Denied - insufficient resources"},
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{255, "Update Denied - handoff in progress"},
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{0, NULL},
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};
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typedef enum {
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MH_AUTH_EXT = 32,
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MF_AUTH_EXT = 33,
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FH_AUTH_EXT = 34,
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GEN_AUTH_EXT = 36, /* RFC 3012 */
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OLD_CVSE_EXT = 37, /* RFC 3115 */
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CVSE_EXT = 38, /* RFC 3115 */
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SS_EXT = 39, /* 3GPP2 IOS4.2 */
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RU_AUTH_EXT = 40, /* 3GPP2 IOS4.2 */
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MN_NAI_EXT = 131,
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MF_CHALLENGE_EXT = 132, /* RFC 3012 */
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OLD_NVSE_EXT = 133, /* RFC 3115 */
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NVSE_EXT = 134 /* RFC 3115 */
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} MIP_EXTS;
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static const value_string a11_ext_types[]= {
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{MH_AUTH_EXT, "Mobile-Home Authentication Extension"},
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{MF_AUTH_EXT, "Mobile-Foreign Authentication Extension"},
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{FH_AUTH_EXT, "Foreign-Home Authentication Extension"},
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{MN_NAI_EXT, "Mobile Node NAI Extension"},
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{GEN_AUTH_EXT, "Generalized Mobile-IP Authentication Extension"},
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{MF_CHALLENGE_EXT, "MN-FA Challenge Extension"},
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{CVSE_EXT, "Critical Vendor/Organization Specific Extension"},
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{SS_EXT, "Session Specific Extension"},
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{RU_AUTH_EXT, "Registration Update Authentication Extension"},
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{OLD_CVSE_EXT, "Critical Vendor/Organization Specific Extension (OLD)"},
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{NVSE_EXT, "Normal Vendor/Organization Specific Extension"},
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{OLD_NVSE_EXT, "Normal Vendor/Organization Specific Extension (OLD)"},
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{0, NULL},
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};
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static const value_string a11_ext_stypes[]= {
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{1, "MN AAA Extension"},
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{0, NULL},
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};
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static const value_string a11_ext_nvose_qosmode[]= {
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{0x00, "QoS Disabled"},
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{0x01, "QoS Enabled"},
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{0, NULL},
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};
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static const value_string a11_ext_nvose_srvopt[]= {
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{0x0021, "3G High Speed Packet Data"},
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{0x003B, "HRPD Main Service Connection"},
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{0x003C, "Link Layer Assisted Header Removal"},
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{0x003D, "Link Layer Assisted Robust Header Compression"},
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{0x0040, "HRPD Auxiliary Service Connection"},
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{0, NULL},
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};
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static const value_string a11_ext_nvose_pdsn_code[]= {
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{0xc1, "Connection Release - reason unspecified"},
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{0xc2, "Connection Release - PPP time-out"},
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{0xc3, "Connection Release - registration time-out"},
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{0xc4, "Connection Release - PDSN error"},
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{0xc5, "Connection Release - inter-PCF handoff"},
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{0xc6, "Connection Release - inter-PDSN handoff"},
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{0xc7, "Connection Release - PDSN OAM&P intervention"},
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{0xc8, "Connection Release - accounting error"},
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{0xca, "Connection Release - user (NAI) failed authentication"},
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{0x00, NULL},
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};
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static const value_string a11_ext_dormant[]= {
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{0x0000, "all MS packet data service instances are dormant"},
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{0, NULL},
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};
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static const value_string a11_ext_app[]= {
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{0x0101, "Accounting (RADIUS)"},
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{0x0102, "Accounting (DIAMETER)"},
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{0x0201, "Mobility Event Indicator (Mobility)"},
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{0x0301, "Data Available Indicator (Data Ready to Send)"},
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{0x0401, "Access Network Identifiers (ANID)"},
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{0x0501, "PDSN Identifiers (Anchor P-P Address)"},
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{0x0601, "Indicators (All Dormant Indicator)"},
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{0x0701, "PDSN Code (PDSN Code)"},
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{0x0801, "Session Parameter (RN-PDIT:Radio Network Packet Data Inactivity Timer)"},
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{0x0802, "Session Parameter (Always On)"},
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{0x0803, "Session Parameter (QoS Mode)"},
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{0x0901, "Service Option (Service Option Value)"},
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{0x0A01, "PDSN Enabled Features (Flow Control Enabled)"},
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{0x0A02, "PDSN Enabled Features (Packet Boundary Enabled)"},
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{0x0A03, "PDSN Enabled Features (GRE Segmentation Enabled)"},
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{0x0B01, "PCF Enabled Features (Short Data Indication Supported)"},
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{0x0B02, "PCF Enabled Features (GRE Segmentation Enabled)"},
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{0x0C01, "Additional Session Info"},
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{0x0D01, "QoS Information (Forward QoS Information)"},
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{0x0D02, "QoS Information (Reverse QoS Information)"},
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{0x0D03, "QoS Information (Subscriber QoS Profile)"},
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{0x0DFE, "QoS Information (Forward QoS Update Information)"},
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{0x0DFF, "QoS Information (Reverse QoS Update Information)"},
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{0x0E01, "Header Compression (ROHC Configuration Parameters)"},
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{0, NULL},
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};
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static const value_string a11_airlink_types[]= {
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{1, "Session Setup (Y=1)"},
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{2, "Active Start (Y=2)"},
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{3, "Active Stop (Y=3)"},
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{4, "Short Data Burst (Y=4)"},
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{0, NULL},
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};
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#define ATTRIBUTE_NAME_LEN_MAX 128
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#define ATTR_TYPE_NULL 0
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#define ATTR_TYPE_INT 1
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#define ATTR_TYPE_STR 2
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#define ATTR_TYPE_IPV4 3
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#define ATTR_TYPE_TYPE 4
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#define ATTR_TYPE_MSID 5
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#define A11_MSG_MSID_ELEM_LEN_MAX 8
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#define A11_MSG_MSID_LEN_MAX 15
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struct radius_attribute {
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char attrname[ATTRIBUTE_NAME_LEN_MAX];
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int type;
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int subtype;
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int bytes;
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int data_type;
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};
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static const struct radius_attribute attrs[]={
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{"Airlink Record", 26, 40, 4, ATTR_TYPE_TYPE},
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{"R-P Session ID", 26, 41, 4, ATTR_TYPE_INT},
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{"Airlink Sequence Number", 26, 42, 4, ATTR_TYPE_INT},
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#if 0
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{"MSID", 31, -1, 15, ATTR_TYPE_MSID},
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#endif
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{"Serving PCF", 26, 9, 4, ATTR_TYPE_IPV4},
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{"BSID", 26, 10, 12, ATTR_TYPE_STR},
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{"ESN", 26, 52, 15, ATTR_TYPE_STR},
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{"User Zone", 26, 11, 4, ATTR_TYPE_INT},
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{"Forward FCH Mux Option", 26, 12, 4, ATTR_TYPE_INT},
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{"Reverse FCH Mux Option", 26, 13, 4, ATTR_TYPE_INT},
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{"Forward Fundamental Rate (IOS 4.1)",26, 14, 4, ATTR_TYPE_INT},
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{"Reverse Fundamental Rate (IOS 4.1)",26, 15, 4, ATTR_TYPE_INT},
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{"Service Option", 26, 16, 4, ATTR_TYPE_INT},
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{"Forward Traffic Type", 26, 17, 4, ATTR_TYPE_INT},
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{"Reverse Traffic Type", 26, 18, 4, ATTR_TYPE_INT},
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{"FCH Frame Size", 26, 19, 4, ATTR_TYPE_INT},
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{"Forward FCH RC", 26, 20, 4, ATTR_TYPE_INT},
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{"Reverse FCH RC", 26, 21, 4, ATTR_TYPE_INT},
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{"DCCH Frame Size 0/5/20", 26, 50, 4, ATTR_TYPE_INT},
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{"Forward DCCH Mux Option", 26, 84, 4, ATTR_TYPE_INT},
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{"Reverse DCCH Mux Option", 26, 85, 4, ATTR_TYPE_INT},
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{"Forward DCCH RC", 26, 86, 4, ATTR_TYPE_INT},
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{"Reverse DCCH RC", 26, 87, 4, ATTR_TYPE_INT},
|
|
{"Airlink Priority", 26, 39, 4, ATTR_TYPE_INT},
|
|
{"Active Connection Time", 26, 49, 4, ATTR_TYPE_INT},
|
|
{"Mobile Orig/Term Ind.", 26, 45, 4, ATTR_TYPE_INT},
|
|
{"SDB Octet Count (Term.)", 26, 31, 4, ATTR_TYPE_INT},
|
|
{"SDB Octet Count (Orig.)", 26, 32, 4, ATTR_TYPE_INT},
|
|
{"ESN (Integer)", 26, 48, 4, ATTR_TYPE_INT},
|
|
{"Sublink", 26, 108, 4, ATTR_TYPE_STR},
|
|
{"MEID", 26, 116, 14, ATTR_TYPE_STR},
|
|
{"Reverse PDCH RC", 26, 114, 2, ATTR_TYPE_INT},
|
|
{"Flow ID Parameter", 26, 144, 4, ATTR_TYPE_INT},
|
|
{"Granted QoS Parameters", 26, 132, 4, ATTR_TYPE_INT},
|
|
{"Flow Status", 26, 145, 4, ATTR_TYPE_INT},
|
|
{"Unknown", -1, -1, -1, ATTR_TYPE_NULL},
|
|
};
|
|
#define NUM_ATTR (sizeof(attrs)/sizeof(struct radius_attribute))
|
|
|
|
#define RADIUS_VENDOR_SPECIFIC 26
|
|
#define SKIP_HDR_LEN 6
|
|
|
|
/* decode MSID from SSE */
|
|
|
|
/* MSID is encoded in Binary Coded Decimal format
|
|
First Byte: [odd-indicator] [Digit 1]
|
|
Second Byte: [Digit 3] [Digit 2]
|
|
..
|
|
if[odd]
|
|
Last Byte: [Digit N] [Digit N-1]
|
|
else
|
|
Last Byte: [F] [Digit N]
|
|
*/
|
|
static void
|
|
decode_sse(proto_tree* ext_tree, tvbuff_t* tvb, int offset, guint ext_len)
|
|
{
|
|
guint8 msid_len;
|
|
guint8 msid_start_offset;
|
|
guint8 msid_num_digits;
|
|
guint8 msid_index;
|
|
char *msid_digits;
|
|
const char* p_msid;
|
|
gboolean odd_even_ind;
|
|
|
|
/* Decode Protocol Type */
|
|
if (ext_len < 2)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode Protocol Type - SSE too short");
|
|
return;
|
|
}
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_ptype, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
|
|
/* Decode Session Key */
|
|
if (ext_len < 4)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode Session Key - SSE too short");
|
|
return;
|
|
}
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_key, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
ext_len -= 4;
|
|
|
|
|
|
/* Decode Session Id Version */
|
|
if (ext_len < 2)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode Session Id Version - SSE too short");
|
|
return;
|
|
}
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_sidver, tvb, offset+1, 1, FALSE);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
|
|
|
|
/* Decode SRID */
|
|
if (ext_len < 2)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode SRID - SSE too short");
|
|
return;
|
|
}
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_mnsrid, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
|
|
/* MSID Type */
|
|
if (ext_len < 2)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode MSID Type - SSE too short");
|
|
return;
|
|
}
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_msid_type, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
|
|
|
|
/* MSID Len */
|
|
if (ext_len < 1)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode MSID Length - SSE too short");
|
|
return;
|
|
}
|
|
msid_len = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(ext_tree, hf_a11_ses_msid_len, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
ext_len -= 1;
|
|
|
|
/* Decode MSID */
|
|
if (ext_len < msid_len)
|
|
{
|
|
proto_tree_add_text(ext_tree, tvb, offset, 0,
|
|
"Cannot decode MSID - SSE too short");
|
|
return;
|
|
}
|
|
|
|
msid_digits = ep_alloc(A11_MSG_MSID_LEN_MAX+2);
|
|
msid_start_offset = offset;
|
|
|
|
if(msid_len > A11_MSG_MSID_ELEM_LEN_MAX)
|
|
{
|
|
p_msid = "MSID is too long";
|
|
}else if(msid_len == 0)
|
|
{
|
|
p_msid = "MSID is too short";
|
|
}else
|
|
{
|
|
/* Decode the BCD digits */
|
|
for(msid_index=0; msid_index<msid_len; msid_index++)
|
|
{
|
|
guint8 msid_digit = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
ext_len -= 1;
|
|
|
|
msid_digits[msid_index*2] = (msid_digit & 0x0F) + '0';
|
|
msid_digits[(msid_index*2) + 1] = ((msid_digit & 0xF0) >> 4) + '0';
|
|
}
|
|
|
|
odd_even_ind = (msid_digits[0] == '1');
|
|
|
|
if(odd_even_ind)
|
|
{
|
|
msid_num_digits = ((msid_len-1) * 2) + 1;
|
|
}else
|
|
{
|
|
msid_num_digits = (msid_len-1) * 2;
|
|
}
|
|
|
|
msid_digits[msid_num_digits + 1] = '\0';
|
|
p_msid = msid_digits + 1;
|
|
}
|
|
|
|
|
|
proto_tree_add_string
|
|
(ext_tree, hf_a11_ses_msid, tvb, msid_start_offset, msid_len, p_msid);
|
|
|
|
return;
|
|
}
|
|
|
|
/* RADIUS attributed */
|
|
static void
|
|
dissect_a11_radius( tvbuff_t *tvb, int offset, proto_tree *tree, int app_len)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *radius_tree;
|
|
gint radius_len;
|
|
guint8 radius_type;
|
|
guint8 radius_subtype;
|
|
int attribute_type;
|
|
gint attribute_len;
|
|
gint offset0;
|
|
gint radius_offset;
|
|
guint i;
|
|
guint8 *str_val;
|
|
guint radius_vendor_id;
|
|
|
|
/* None of this really matters if we don't have a tree */
|
|
if (!tree) return;
|
|
|
|
offset0 = offset;
|
|
|
|
/* return if length of extension is not valid */
|
|
if (tvb_reported_length_remaining(tvb, offset) < 12) {
|
|
return;
|
|
}
|
|
|
|
ti = proto_tree_add_text(tree, tvb, offset - 2, app_len, "Airlink Record");
|
|
|
|
radius_tree = proto_item_add_subtree(ti, ett_a11_radiuses);
|
|
|
|
/* And, handle each record */
|
|
while ((tvb_reported_length_remaining(tvb, offset) > 0)
|
|
&& ((offset-offset0) < (app_len-2)))
|
|
{
|
|
|
|
radius_type = tvb_get_guint8(tvb, offset);
|
|
radius_len = tvb_get_guint8(tvb, offset + 1);
|
|
if (radius_len < 2)
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, 2,
|
|
"Bogus RADIUS length %u, should be >= 2",
|
|
radius_len);
|
|
break;
|
|
}
|
|
|
|
if (radius_type == RADIUS_VENDOR_SPECIFIC)
|
|
{
|
|
if (radius_len < SKIP_HDR_LEN)
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"Bogus RADIUS length %u, should be >= %u",
|
|
radius_len, SKIP_HDR_LEN);
|
|
offset += radius_len;
|
|
continue;
|
|
}
|
|
radius_vendor_id = tvb_get_ntohl(tvb, offset +2);
|
|
|
|
if(radius_vendor_id != VENDOR_THE3GPP2)
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"Unknown Vendor-specific Attribute (Vendor Id: %x)", radius_vendor_id);
|
|
offset += radius_len;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
|
|
/**** ad-hoc ***/
|
|
if(radius_type == 31)
|
|
{
|
|
str_val = tvb_get_ephemeral_string(tvb,offset+2,radius_len-2);
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"MSID: %s", str_val);
|
|
}
|
|
else if (radius_type == 46)
|
|
{
|
|
if (radius_len < (2+4))
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"Bogus RADIUS length %u, should be >= %u",
|
|
radius_len, 2+4);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"Acct Session Time: %d",tvb_get_ntohl(tvb,offset+2));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset, radius_len,
|
|
"Unknown RADIUS Attributes (Type: %d)", radius_type);
|
|
}
|
|
|
|
offset += radius_len;
|
|
continue;
|
|
}
|
|
|
|
offset += SKIP_HDR_LEN;
|
|
radius_len -= SKIP_HDR_LEN;
|
|
radius_offset = 0;
|
|
|
|
/* Detect Airlink Record Type */
|
|
|
|
while (radius_len > radius_offset)
|
|
{
|
|
if (radius_len < (radius_offset + 2))
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset, 2,
|
|
"Bogus RADIUS length %u, should be >= %u",
|
|
radius_len + SKIP_HDR_LEN,
|
|
radius_offset + 2 + SKIP_HDR_LEN);
|
|
return;
|
|
}
|
|
|
|
radius_subtype = tvb_get_guint8(tvb, offset + radius_offset);
|
|
attribute_len = tvb_get_guint8(tvb, offset + radius_offset + 1);
|
|
if (attribute_len < 2)
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset, 2,
|
|
"Bogus attribute length %u, should be >= 2", attribute_len);
|
|
return;
|
|
}
|
|
if (attribute_len > (radius_len - radius_offset))
|
|
{
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset, 2,
|
|
"Bogus attribute length %u, should be <= %u",
|
|
attribute_len, radius_len - radius_offset);
|
|
return;
|
|
}
|
|
|
|
attribute_type = -1;
|
|
for(i = 0; i < NUM_ATTR; i++) {
|
|
if (attrs[i].subtype == radius_subtype) {
|
|
attribute_type = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((radius_subtype == 48) &&
|
|
(attribute_len == 0x0a))
|
|
{
|
|
/*
|
|
* trying to compensate for Spec. screwups where
|
|
* certain versions had subtype 48 being a 4 octet integer
|
|
* and others had it being a 15 octet string!
|
|
*/
|
|
str_val = tvb_get_ephemeral_string(tvb,offset+radius_offset+2,attribute_len-2);
|
|
proto_tree_add_text(radius_tree, tvb, offset+radius_offset,
|
|
attribute_len,
|
|
"3GPP2: ESN-48 (String) (%s)", str_val);
|
|
}
|
|
else if(attribute_type >= 0) {
|
|
switch(attrs[attribute_type].data_type) {
|
|
case ATTR_TYPE_INT:
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset,
|
|
attribute_len, "3GPP2: %s (0x%04x)", attrs[attribute_type].attrname,
|
|
tvb_get_ntohl(tvb,offset + radius_offset + 2));
|
|
break;
|
|
case ATTR_TYPE_IPV4:
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset,
|
|
attribute_len, "3GPP2: %s (%s)", attrs[attribute_type].attrname,
|
|
ip_to_str(tvb_get_ptr(tvb,offset + radius_offset + 2,4)));
|
|
break;
|
|
case ATTR_TYPE_TYPE:
|
|
proto_tree_add_text(radius_tree, tvb, offset + radius_offset,
|
|
attribute_len, "3GPP2: %s (%s)", attrs[attribute_type].attrname,
|
|
val_to_str(tvb_get_ntohl(tvb,offset+radius_offset+2),
|
|
a11_airlink_types,"Unknown"));
|
|
break;
|
|
case ATTR_TYPE_STR:
|
|
str_val = tvb_get_ephemeral_string(tvb,offset+radius_offset+2,attribute_len-2);
|
|
proto_tree_add_text(radius_tree, tvb, offset+radius_offset,
|
|
attribute_len,
|
|
"3GPP2: %s (%s)", attrs[attribute_type].attrname, str_val);
|
|
break;
|
|
case ATTR_TYPE_NULL:
|
|
break;
|
|
default:
|
|
proto_tree_add_text(radius_tree, tvb, offset+radius_offset, attribute_len,
|
|
"RADIUS: %s", attrs[attribute_type].attrname);
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
proto_tree_add_text(radius_tree, tvb, offset+radius_offset, attribute_len,
|
|
"RADIUS: Unknown 3GPP2 Attribute (Type:%d, SubType:%d)",
|
|
radius_type,radius_subtype);
|
|
}
|
|
|
|
radius_offset += attribute_len;
|
|
}
|
|
offset += radius_len;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/* Code to dissect Additional Session Info */
|
|
static void dissect_ase(tvbuff_t* tvb, int offset, guint ase_len, proto_tree* ext_tree)
|
|
{
|
|
guint clen = 0; /* consumed length */
|
|
|
|
while(clen < ase_len)
|
|
{
|
|
guint8 srid = tvb_get_guint8(tvb, offset+clen+1);
|
|
proto_item* ti = proto_tree_add_text
|
|
(ext_tree, tvb, offset+clen, 0x0D+1, "GRE Key Entry (SRID: %d)", srid);
|
|
proto_tree* exts_tree = proto_item_add_subtree(ti, ett_a11_ase);
|
|
|
|
/* Entry Length */
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_len_type, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* SRID */
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_srid_type, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Service Option */
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_servopt_type, tvb, offset+clen, 2, FALSE);
|
|
clen+=2;
|
|
|
|
/* GRE Protocol Type*/
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_gre_proto_type, tvb, offset+clen, 2, FALSE);
|
|
clen+=2;
|
|
|
|
/* GRE Key */
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_gre_key, tvb, offset+clen, 4, FALSE);
|
|
clen+=4;
|
|
|
|
/* PCF IP Address */
|
|
proto_tree_add_item(exts_tree, hf_a11_ase_pcf_addr_key, tvb, offset+clen, 4, FALSE);
|
|
clen+=4;
|
|
}
|
|
}
|
|
|
|
#define A11_FQI_IPFLOW_DISC_ENABLED 0x80
|
|
#define A11_FQI_DSCP_INCLUDED 0x40
|
|
|
|
static void dissect_fwd_qosinfo_flags
|
|
(tvbuff_t* tvb, int offset, proto_tree* ext_tree, guint8* p_dscp_included)
|
|
{
|
|
guint8 flags = tvb_get_guint8(tvb, offset);
|
|
guint8 nbits = sizeof(flags) * 8;
|
|
|
|
proto_item* ti = proto_tree_add_text(ext_tree, tvb, offset, sizeof(flags),
|
|
"Flags: %#02x", flags);
|
|
|
|
proto_tree* flags_tree = proto_item_add_subtree(ti, ett_a11_fqi_flags);
|
|
|
|
proto_tree_add_text(flags_tree, tvb, offset, sizeof(flags), "%s",
|
|
decode_boolean_bitfield(flags, A11_FQI_IPFLOW_DISC_ENABLED, nbits,
|
|
"IP Flow Discriminator Enabled", "IP Flow Discriminator Disabled"));
|
|
|
|
proto_tree_add_text(flags_tree, tvb, offset, sizeof(flags), "%s",
|
|
decode_boolean_bitfield(flags, A11_FQI_DSCP_INCLUDED, nbits,
|
|
"DSCP Included", "DSCP Not Included"));
|
|
if(flags & A11_FQI_DSCP_INCLUDED)
|
|
{
|
|
*p_dscp_included = 1;
|
|
}else
|
|
{
|
|
*p_dscp_included = 0;
|
|
}
|
|
}
|
|
|
|
|
|
#define A11_FQI_DSCP 0x7E
|
|
#define A11_FQI_FLOW_STATE 0x01
|
|
|
|
static void dissect_fqi_entry_flags
|
|
(tvbuff_t* tvb, int offset, proto_tree* ext_tree, guint8 dscp_enabled)
|
|
{
|
|
guint8 dscp = tvb_get_guint8(tvb, offset);
|
|
guint8 nbits = sizeof(dscp) * 8;
|
|
|
|
proto_item* ti = proto_tree_add_text(ext_tree, tvb, offset, sizeof(dscp),
|
|
"DSCP and Flow State: %#02x", dscp);
|
|
|
|
proto_tree* flags_tree = proto_item_add_subtree(ti, ett_a11_fqi_entry_flags);
|
|
|
|
if(dscp_enabled)
|
|
{
|
|
proto_tree_add_text(flags_tree, tvb, offset, sizeof(dscp), "%s",
|
|
decode_numeric_bitfield(dscp, A11_FQI_DSCP, nbits,
|
|
"DSCP: %u"));
|
|
}
|
|
|
|
proto_tree_add_text(flags_tree, tvb, offset, sizeof(dscp), "%s",
|
|
decode_boolean_bitfield(dscp, A11_FQI_FLOW_STATE, nbits,
|
|
"Flow State: Active", "Flow State: Inactive"));
|
|
}
|
|
|
|
|
|
#define A11_RQI_FLOW_STATE 0x01
|
|
|
|
static void dissect_rqi_entry_flags
|
|
(tvbuff_t* tvb, int offset, proto_tree* ext_tree)
|
|
{
|
|
guint8 flags = tvb_get_guint8(tvb, offset);
|
|
guint8 nbits = sizeof(flags) * 8;
|
|
|
|
proto_item* ti = proto_tree_add_text(ext_tree, tvb, offset, sizeof(flags),
|
|
"Flags: %#02x", flags);
|
|
|
|
proto_tree* flags_tree = proto_item_add_subtree(ti, ett_a11_rqi_entry_flags);
|
|
|
|
proto_tree_add_text(flags_tree, tvb, offset, sizeof(flags), "%s",
|
|
decode_boolean_bitfield(flags, A11_RQI_FLOW_STATE, nbits,
|
|
"Flow State: Active", "Flow State: Inactive"));
|
|
}
|
|
|
|
/* Code to dissect Forward QoS Info */
|
|
static void dissect_fwd_qosinfo(tvbuff_t* tvb, int offset, proto_tree* ext_tree)
|
|
{
|
|
int clen = 0; /* consumed length */
|
|
guint8 flow_count;
|
|
guint8 flow_index;
|
|
guint8 dscp_enabled = 0;
|
|
|
|
/*
|
|
* Starts with a length field
|
|
* http://www.3gpp2.org/Public_html/specs/A.S0009-C_v1.0_070801.pdf
|
|
*/
|
|
proto_tree_add_item(ext_tree, hf_a11_fqi_length, tvb, offset+clen, 2, FALSE);
|
|
clen = clen + 2;
|
|
|
|
/* SR Id */
|
|
proto_tree_add_item(ext_tree, hf_a11_fqi_srid, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Flags */
|
|
dissect_fwd_qosinfo_flags(tvb, offset+clen, ext_tree, &dscp_enabled);
|
|
clen++;
|
|
|
|
/* Flow Count */
|
|
flow_count = tvb_get_guint8(tvb, offset+clen);
|
|
flow_count &= 0x1F;
|
|
proto_tree_add_item(ext_tree, hf_a11_fqi_flowcount, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
for(flow_index=0; flow_index<flow_count; flow_index++)
|
|
{
|
|
guint8 requested_qos_len = 0;
|
|
guint8 granted_qos_len = 0;
|
|
|
|
guint8 entry_len = tvb_get_guint8(tvb, offset+clen);
|
|
guint8 flow_id = tvb_get_guint8(tvb, offset+clen+1);
|
|
|
|
proto_item* ti = proto_tree_add_text
|
|
(ext_tree, tvb, offset+clen, entry_len+1, "Forward Flow Entry (Flow Id: %d)", flow_id);
|
|
|
|
proto_tree* exts_tree = proto_item_add_subtree(ti, ett_a11_fqi_flowentry);
|
|
|
|
/* Entry Length */
|
|
proto_tree_add_item(exts_tree, hf_a11_fqi_entrylen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Flow Id */
|
|
proto_tree_add_item(exts_tree, hf_a11_fqi_flowid, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* DSCP and Flow State*/
|
|
dissect_fqi_entry_flags(tvb, offset+clen, exts_tree, dscp_enabled);
|
|
clen++;
|
|
|
|
|
|
/* Requested QoS Length */
|
|
requested_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_fqi_requested_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Requested QoS Blob */
|
|
if(requested_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_fqi_requested_qos, tvb, offset+clen,
|
|
requested_qos_len, FALSE);
|
|
clen += requested_qos_len;
|
|
}
|
|
|
|
/* Granted QoS Length */
|
|
granted_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item(exts_tree, hf_a11_fqi_granted_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Granted QoS Blob */
|
|
if(granted_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_fqi_granted_qos, tvb, offset+clen, granted_qos_len, FALSE);
|
|
clen += granted_qos_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Code to dissect Reverse QoS Info */
|
|
static void dissect_rev_qosinfo(tvbuff_t* tvb, int offset, proto_tree* ext_tree)
|
|
{
|
|
int clen = 0; /* consumed length */
|
|
guint8 flow_count;
|
|
guint8 flow_index;
|
|
|
|
/*
|
|
* Starts with a length field
|
|
* http://www.3gpp2.org/Public_html/specs/A.S0009-C_v1.0_070801.pdf
|
|
*/
|
|
proto_tree_add_item(ext_tree, hf_a11_fqi_length, tvb, offset+clen, 2, FALSE);
|
|
clen = clen + 2;
|
|
|
|
/* SR Id */
|
|
proto_tree_add_item(ext_tree, hf_a11_rqi_srid, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Flow Count */
|
|
flow_count = tvb_get_guint8(tvb, offset+clen);
|
|
flow_count &= 0x1F;
|
|
proto_tree_add_item(ext_tree, hf_a11_rqi_flowcount, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
for(flow_index=0; flow_index<flow_count; flow_index++)
|
|
{
|
|
guint8 requested_qos_len;
|
|
guint8 granted_qos_len;
|
|
|
|
guint8 entry_len = tvb_get_guint8(tvb, offset+clen);
|
|
guint8 flow_id = tvb_get_guint8(tvb, offset+clen+1);
|
|
|
|
proto_item* ti = proto_tree_add_text
|
|
(ext_tree, tvb, offset+clen, entry_len+1, "Reverse Flow Entry (Flow Id: %d)", flow_id);
|
|
|
|
proto_tree* exts_tree = proto_item_add_subtree(ti, ett_a11_rqi_flowentry);
|
|
|
|
/* Entry Length */
|
|
proto_tree_add_item(exts_tree, hf_a11_rqi_entrylen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Flow Id */
|
|
proto_tree_add_item(exts_tree, hf_a11_rqi_flowid, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Flags */
|
|
dissect_rqi_entry_flags(tvb, offset+clen, exts_tree);
|
|
clen++;
|
|
|
|
/* Requested QoS Length */
|
|
requested_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item(exts_tree, hf_a11_rqi_requested_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Requested QoS Blob */
|
|
if(requested_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_rqi_requested_qos, tvb, offset+clen, requested_qos_len, FALSE);
|
|
clen += requested_qos_len;
|
|
}
|
|
|
|
/* Granted QoS Length */
|
|
granted_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item(exts_tree, hf_a11_rqi_granted_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Granted QoS Blob */
|
|
if(granted_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_rqi_granted_qos, tvb, offset+clen, granted_qos_len, FALSE);
|
|
clen += granted_qos_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Code to dissect Subscriber QoS Profile */
|
|
static void dissect_subscriber_qos_profile(tvbuff_t* tvb, int offset, int ext_len, proto_tree* ext_tree)
|
|
{
|
|
proto_tree* exts_tree;
|
|
|
|
int qos_profile_len = ext_len;
|
|
|
|
proto_item* ti =
|
|
proto_tree_add_text (ext_tree, tvb, offset, 0,
|
|
"Subscriber Qos Profile (%d bytes)",
|
|
qos_profile_len);
|
|
|
|
exts_tree = proto_item_add_subtree(ti, ett_a11_subscriber_profile);
|
|
|
|
/* Subscriber QoS profile */
|
|
if(qos_profile_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_subsciber_profile, tvb, offset,
|
|
qos_profile_len, FALSE);
|
|
}
|
|
}
|
|
|
|
/* Code to dissect Forward QoS Update Info */
|
|
static void dissect_fwd_qosupdate_info(tvbuff_t* tvb, int offset, proto_tree* ext_tree)
|
|
{
|
|
int clen = 0; /* consumed length */
|
|
guint8 flow_count;
|
|
guint8 flow_index;
|
|
|
|
/* Flow Count */
|
|
flow_count = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item(ext_tree, hf_a11_fqui_flowcount, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
for(flow_index=0; flow_index<flow_count; flow_index++)
|
|
{
|
|
proto_tree* exts_tree;
|
|
guint8 granted_qos_len;
|
|
|
|
guint8 flow_id = tvb_get_guint8(tvb, offset+clen);
|
|
|
|
proto_item* ti = proto_tree_add_text
|
|
(ext_tree, tvb, offset+clen, 1, "Forward Flow Entry (Flow Id: %d)", flow_id);
|
|
|
|
clen++;
|
|
exts_tree = proto_item_add_subtree(ti, ett_a11_fqui_flowentry);
|
|
|
|
/* Forward QoS Sub Blob Length */
|
|
granted_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_fqui_updated_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Forward QoS Sub Blob */
|
|
if(granted_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_fqui_updated_qos, tvb, offset+clen,
|
|
granted_qos_len, FALSE);
|
|
clen += granted_qos_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Code to dissect Reverse QoS Update Info */
|
|
static void dissect_rev_qosupdate_info(tvbuff_t* tvb, int offset, proto_tree* ext_tree)
|
|
{
|
|
int clen = 0; /* consumed length */
|
|
guint8 flow_count;
|
|
guint8 flow_index;
|
|
|
|
/* Flow Count */
|
|
flow_count = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item(ext_tree, hf_a11_rqui_flowcount, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
for(flow_index=0; flow_index<flow_count; flow_index++)
|
|
{
|
|
proto_tree* exts_tree;
|
|
guint8 granted_qos_len;
|
|
|
|
guint8 flow_id = tvb_get_guint8(tvb, offset+clen);
|
|
|
|
proto_item* ti = proto_tree_add_text
|
|
(ext_tree, tvb, offset+clen, 1, "Reverse Flow Entry (Flow Id: %d)", flow_id);
|
|
clen++;
|
|
exts_tree = proto_item_add_subtree(ti, ett_a11_rqui_flowentry);
|
|
|
|
/* Reverse QoS Sub Blob Length */
|
|
granted_qos_len = tvb_get_guint8(tvb, offset+clen);
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_rqui_updated_qoslen, tvb, offset+clen, 1, FALSE);
|
|
clen++;
|
|
|
|
/* Reverse QoS Sub Blob */
|
|
if(granted_qos_len)
|
|
{
|
|
proto_tree_add_item
|
|
(exts_tree, hf_a11_rqui_updated_qos, tvb, offset+clen,
|
|
granted_qos_len, FALSE);
|
|
clen += granted_qos_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Code to dissect extensions */
|
|
static void
|
|
dissect_a11_extensions( tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *exts_tree;
|
|
proto_tree *ext_tree;
|
|
guint ext_len;
|
|
guint8 ext_type;
|
|
guint8 ext_subtype = 0;
|
|
guint hdrLen;
|
|
|
|
gint16 apptype = -1;
|
|
|
|
/* None of this really matters if we don't have a tree */
|
|
if (!tree) return;
|
|
|
|
/* Add our tree, if we have extensions */
|
|
ti = proto_tree_add_text(tree, tvb, offset, -1, "Extensions");
|
|
exts_tree = proto_item_add_subtree(ti, ett_a11_exts);
|
|
|
|
/* And, handle each extension */
|
|
while (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
|
|
/* Get our extension info */
|
|
ext_type = tvb_get_guint8(tvb, offset);
|
|
if (ext_type == GEN_AUTH_EXT) {
|
|
/*
|
|
* Very nasty . . breaks normal extensions, since the length is
|
|
* in the wrong place :(
|
|
*/
|
|
ext_subtype = tvb_get_guint8(tvb, offset + 1);
|
|
ext_len = tvb_get_ntohs(tvb, offset + 2);
|
|
hdrLen = 4;
|
|
} else if ((ext_type == CVSE_EXT) || (ext_type == OLD_CVSE_EXT)) {
|
|
ext_len = tvb_get_ntohs(tvb, offset + 2);
|
|
ext_subtype = tvb_get_guint8(tvb, offset + 8);
|
|
hdrLen = 4;
|
|
} else {
|
|
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, a11_ext_types,
|
|
"Unknown Extension %u"));
|
|
ext_tree = proto_item_add_subtree(ti, ett_a11_ext);
|
|
|
|
proto_tree_add_item(ext_tree, hf_a11_ext_type, tvb, offset, 1, ext_type);
|
|
offset++;
|
|
|
|
if (ext_type == SS_EXT) {
|
|
proto_tree_add_uint(ext_tree, hf_a11_ext_len, tvb, offset, 1, ext_len);
|
|
offset++;
|
|
}
|
|
else if((ext_type == CVSE_EXT) || (ext_type == OLD_CVSE_EXT)) {
|
|
offset++;
|
|
proto_tree_add_uint(ext_tree, hf_a11_ext_len, tvb, offset, 2, ext_len);
|
|
offset+=2;
|
|
}
|
|
else if (ext_type != GEN_AUTH_EXT) {
|
|
/* Another nasty hack since GEN_AUTH_EXT broke everything */
|
|
proto_tree_add_uint(ext_tree, hf_a11_ext_len, tvb, offset, 1, ext_len);
|
|
offset++;
|
|
}
|
|
|
|
switch(ext_type) {
|
|
case SS_EXT:
|
|
decode_sse(ext_tree, tvb, offset, ext_len);
|
|
offset += ext_len;
|
|
ext_len = 0;
|
|
break;
|
|
|
|
case MH_AUTH_EXT:
|
|
case MF_AUTH_EXT:
|
|
case FH_AUTH_EXT:
|
|
case RU_AUTH_EXT:
|
|
/* All these extensions look the same. 4 byte SPI followed by a key */
|
|
if (ext_len < 4)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_aext_spi, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
ext_len -= 4;
|
|
if (ext_len == 0)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_aext_auth, tvb, offset, ext_len,
|
|
FALSE);
|
|
break;
|
|
case MN_NAI_EXT:
|
|
if (ext_len == 0)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_next_nai, tvb, offset,
|
|
ext_len, FALSE);
|
|
break;
|
|
|
|
case GEN_AUTH_EXT: /* RFC 3012 */
|
|
/*
|
|
* Very nasty . . breaks normal extensions, since the length is
|
|
* in the wrong place :(
|
|
*/
|
|
proto_tree_add_uint(ext_tree, hf_a11_ext_stype, tvb, offset, 1, ext_subtype);
|
|
offset++;
|
|
proto_tree_add_uint(ext_tree, hf_a11_ext_len, tvb, offset, 2, ext_len);
|
|
offset+=2;
|
|
/* SPI */
|
|
if (ext_len < 4)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_aext_spi, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
ext_len -= 4;
|
|
/* Key */
|
|
if (ext_len == 0)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_aext_auth, tvb, offset,
|
|
ext_len, FALSE);
|
|
|
|
break;
|
|
case OLD_CVSE_EXT: /* RFC 3115 */
|
|
case CVSE_EXT: /* RFC 3115 */
|
|
if (ext_len < 4)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_vid, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
ext_len -= 4;
|
|
if (ext_len < 2)
|
|
break;
|
|
apptype = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_uint(ext_tree, hf_a11_vse_apptype, tvb, offset, 2, apptype);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
if(apptype == 0x0101) {
|
|
if (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
dissect_a11_radius(tvb, offset, ext_tree, ext_len + 2);
|
|
}
|
|
}
|
|
break;
|
|
case OLD_NVSE_EXT: /* RFC 3115 */
|
|
case NVSE_EXT: /* RFC 3115 */
|
|
if (ext_len < 6)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_vid, tvb, offset+2, 4, FALSE);
|
|
offset += 6;
|
|
ext_len -= 6;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_apptype, tvb, offset, 2, FALSE);
|
|
|
|
if (ext_len < 2)
|
|
break;
|
|
apptype = tvb_get_ntohs(tvb, offset);
|
|
offset += 2;
|
|
ext_len -= 2;
|
|
switch(apptype) {
|
|
case 0x0401:
|
|
if (ext_len < 5)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_panid, tvb, offset, 5, FALSE);
|
|
offset += 5;
|
|
ext_len -= 5;
|
|
if (ext_len < 5)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_canid, tvb, offset, 5, FALSE);
|
|
break;
|
|
case 0x0501:
|
|
if (ext_len < 4)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_ppaddr, tvb, offset, 4, FALSE);
|
|
break;
|
|
case 0x0601:
|
|
if (ext_len < 2)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_dormant, tvb, offset, 2, FALSE);
|
|
break;
|
|
case 0x0701:
|
|
if (ext_len < 1)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_code, tvb, offset, 1, FALSE);
|
|
break;
|
|
case 0x0801:
|
|
if (ext_len < 1)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_pdit, tvb, offset, 1, FALSE);
|
|
break;
|
|
case 0x0802:
|
|
proto_tree_add_text(ext_tree, tvb, offset, -1, "Session Parameter - Always On");
|
|
break;
|
|
case 0x0803:
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_qosmode, tvb, offset, 1, FALSE);
|
|
break;
|
|
case 0x0901:
|
|
if (ext_len < 2)
|
|
break;
|
|
proto_tree_add_item(ext_tree, hf_a11_vse_srvopt, tvb, offset, 2, FALSE);
|
|
break;
|
|
case 0x0C01:
|
|
dissect_ase(tvb, offset, ext_len, ext_tree);
|
|
break;
|
|
case 0x0D01:
|
|
dissect_fwd_qosinfo(tvb, offset, ext_tree);
|
|
break;
|
|
case 0x0D02:
|
|
dissect_rev_qosinfo(tvb, offset, ext_tree);
|
|
break;
|
|
case 0x0D03:
|
|
dissect_subscriber_qos_profile(tvb, offset, ext_len, ext_tree);
|
|
break;
|
|
case 0x0DFE:
|
|
dissect_fwd_qosupdate_info(tvb, offset, ext_tree);
|
|
break;
|
|
case 0x0DFF:
|
|
dissect_rev_qosupdate_info(tvb, offset, ext_tree);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
case MF_CHALLENGE_EXT: /* RFC 3012 */
|
|
/* The default dissector is good here. The challenge is all hex anyway. */
|
|
default:
|
|
proto_tree_add_item(ext_tree, hf_a11_ext, tvb, offset, ext_len, FALSE);
|
|
break;
|
|
} /* ext type */
|
|
|
|
offset += ext_len;
|
|
} /* while data remaining */
|
|
|
|
} /* dissect_a11_extensions */
|
|
|
|
/* Code to actually dissect the packets */
|
|
static int
|
|
dissect_a11( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
/* Set up structures we will need to add the protocol subtree and manage it */
|
|
proto_item *ti;
|
|
proto_tree *a11_tree;
|
|
proto_item *tf;
|
|
proto_tree *flags_tree;
|
|
guint8 type;
|
|
guint8 flags;
|
|
guint offset=0;
|
|
const guint8 *reftime;
|
|
|
|
if (!tvb_bytes_exist(tvb, offset, 1))
|
|
return 0; /* not enough data to check message type */
|
|
|
|
type = tvb_get_guint8(tvb, offset);
|
|
if (match_strval(type, a11_types) == NULL)
|
|
return 0; /* not a known message type */
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "3GPP2 A11");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
switch (type) {
|
|
case REGISTRATION_REQUEST:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Request: PDSN=%s PCF=%s",
|
|
ip_to_str(tvb_get_ptr(tvb, 8, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb,12,4)));
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* flags */
|
|
flags = tvb_get_guint8(tvb, offset);
|
|
tf = proto_tree_add_uint(a11_tree, hf_a11_flags, tvb,
|
|
offset, 1, flags);
|
|
flags_tree = proto_item_add_subtree(tf, ett_a11_flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_s, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_b, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_d, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_m, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_g, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_v, tvb, offset, 1, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_a11_t, tvb, offset, 1, flags);
|
|
offset++;
|
|
|
|
/* lifetime */
|
|
proto_tree_add_item(a11_tree, hf_a11_life, tvb, offset, 2, FALSE);
|
|
offset +=2;
|
|
|
|
/* home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* home agent address */
|
|
proto_tree_add_item(a11_tree, hf_a11_haaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Care of Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_coa, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8, reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case REGISTRATION_REPLY:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Reply: PDSN=%s, Code=%u",
|
|
ip_to_str(tvb_get_ptr(tvb,8,4)), tvb_get_guint8(tvb,1));
|
|
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reply Code */
|
|
proto_tree_add_item(a11_tree, hf_a11_code, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
|
|
/* Registration Lifetime */
|
|
proto_tree_add_item(a11_tree, hf_a11_life, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Home Agent Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_haaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
} /* if tree */
|
|
|
|
break;
|
|
case REGISTRATION_UPDATE:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,"Reg Update: PDSN=%s",
|
|
ip_to_str(tvb_get_ptr(tvb,8,4)));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=3;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Home Agent Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_haaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case REGISTRATION_ACK:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Ack: PCF=%s Status=%u",
|
|
ip_to_str(tvb_get_ptr(tvb, 8, 4)),
|
|
tvb_get_guint8(tvb,3));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=2;
|
|
|
|
/* Ack Status */
|
|
proto_tree_add_item(a11_tree, hf_a11_status, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Care of Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_coa, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case SESSION_UPDATE: /* IOS4.3 */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,"Ses Update: PDSN=%s",
|
|
ip_to_str(tvb_get_ptr(tvb,8,4)));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=3;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Home Agent Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_haaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case SESSION_ACK: /* IOS4.3 */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Ses Upd Ack: PCF=%s, Status=%u",
|
|
ip_to_str(tvb_get_ptr(tvb, 8, 4)),
|
|
tvb_get_guint8(tvb,3));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=2;
|
|
|
|
/* Ack Status */
|
|
proto_tree_add_item(a11_tree, hf_a11_status, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Care of Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_coa, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case CAPABILITIES_INFO: /* IOS5.1 */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Cap Info: PDSN=%s, PCF=%s",
|
|
ip_to_str(tvb_get_ptr(tvb, 8, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb,12,4)));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=3;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Home Agent Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_haaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Care of Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_coa, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
case CAPABILITIES_INFO_ACK: /* IOS5.1 */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Cap Info Ack: PCF=%s",
|
|
ip_to_str(tvb_get_ptr(tvb, 8, 4)));
|
|
if (tree) {
|
|
/* Add Subtree */
|
|
ti = proto_tree_add_item(tree, proto_a11, tvb, offset, -1, FALSE);
|
|
a11_tree = proto_item_add_subtree(ti, ett_a11);
|
|
|
|
/* Type */
|
|
proto_tree_add_uint(a11_tree, hf_a11_type, tvb, offset, 1, type);
|
|
offset++;
|
|
|
|
/* Reserved */
|
|
offset+=3;
|
|
|
|
/* Home address */
|
|
proto_tree_add_item(a11_tree, hf_a11_homeaddr, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Care of Address */
|
|
proto_tree_add_item(a11_tree, hf_a11_coa, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
/* Identifier - assumed to be an NTP time here */
|
|
reftime = tvb_get_ptr(tvb, offset, 8);
|
|
proto_tree_add_bytes_format_value(a11_tree, hf_a11_ident, tvb,
|
|
offset, 8,
|
|
reftime,
|
|
"%s",
|
|
ntp_fmt_ts(reftime));
|
|
offset += 8;
|
|
|
|
} /* if tree */
|
|
break;
|
|
default:
|
|
DISSECTOR_ASSERT_NOT_REACHED();
|
|
break;
|
|
} /* End switch */
|
|
|
|
if (tree) {
|
|
if (tvb_reported_length_remaining(tvb, offset) > 0)
|
|
dissect_a11_extensions(tvb, offset, a11_tree);
|
|
}
|
|
return tvb_length(tvb);
|
|
} /* dissect_a11 */
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void
|
|
proto_register_a11(void)
|
|
{
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
{ &hf_a11_type,
|
|
{ "Message Type", "a11.type",
|
|
FT_UINT8, BASE_DEC, VALS(a11_types), 0,
|
|
"A11 Message type.", HFILL }
|
|
},
|
|
{ &hf_a11_flags,
|
|
{"Flags", "a11.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_a11_s,
|
|
{"Simultaneous Bindings", "a11.s",
|
|
FT_BOOLEAN, 8, NULL, 128,
|
|
"Simultaneous Bindings Allowed", HFILL }
|
|
},
|
|
{ &hf_a11_b,
|
|
{"Broadcast Datagrams", "a11.b",
|
|
FT_BOOLEAN, 8, NULL, 64,
|
|
"Broadcast Datagrams requested", HFILL }
|
|
},
|
|
{ &hf_a11_d,
|
|
{ "Co-located Care-of Address", "a11.d",
|
|
FT_BOOLEAN, 8, NULL, 32,
|
|
"MN using Co-located Care-of address", HFILL }
|
|
},
|
|
{ &hf_a11_m,
|
|
{"Minimal Encapsulation", "a11.m",
|
|
FT_BOOLEAN, 8, NULL, 16,
|
|
"MN wants Minimal encapsulation", HFILL }
|
|
},
|
|
{ &hf_a11_g,
|
|
{"GRE", "a11.g",
|
|
FT_BOOLEAN, 8, NULL, 8,
|
|
"MN wants GRE encapsulation", HFILL }
|
|
},
|
|
{ &hf_a11_v,
|
|
{ "Van Jacobson", "a11.v",
|
|
FT_BOOLEAN, 8, NULL, 4,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_t,
|
|
{ "Reverse Tunneling", "a11.t",
|
|
FT_BOOLEAN, 8, NULL, 2,
|
|
"Reverse tunneling requested", HFILL }
|
|
},
|
|
{ &hf_a11_code,
|
|
{ "Reply Code", "a11.code",
|
|
FT_UINT8, BASE_DEC, VALS(a11_reply_codes), 0,
|
|
"A11 Registration Reply code.", HFILL }
|
|
},
|
|
{ &hf_a11_status,
|
|
{ "Reply Status", "a11.ackstat",
|
|
FT_UINT8, BASE_DEC, VALS(a11_ack_status), 0,
|
|
"A11 Registration Ack Status.", HFILL }
|
|
},
|
|
{ &hf_a11_life,
|
|
{ "Lifetime", "a11.life",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"A11 Registration Lifetime.", HFILL }
|
|
},
|
|
{ &hf_a11_homeaddr,
|
|
{ "Home Address", "a11.homeaddr",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Mobile Node's home address.", HFILL }
|
|
},
|
|
|
|
{ &hf_a11_haaddr,
|
|
{ "Home Agent", "a11.haaddr",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Home agent IP Address.", HFILL }
|
|
},
|
|
{ &hf_a11_coa,
|
|
{ "Care of Address", "a11.coa",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Care of Address.", HFILL }
|
|
},
|
|
{ &hf_a11_ident,
|
|
{ "Identification", "a11.ident",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"MN Identification.", HFILL }
|
|
},
|
|
{ &hf_a11_ext_type,
|
|
{ "Extension Type", "a11.ext.type",
|
|
FT_UINT8, BASE_DEC, VALS(a11_ext_types), 0,
|
|
"Mobile IP Extension Type.", HFILL }
|
|
},
|
|
{ &hf_a11_ext_stype,
|
|
{ "Gen Auth Ext SubType", "a11.ext.auth.subtype",
|
|
FT_UINT8, BASE_DEC, VALS(a11_ext_stypes), 0,
|
|
"Mobile IP Auth Extension Sub Type.", HFILL }
|
|
},
|
|
{ &hf_a11_ext_len,
|
|
{ "Extension Length", "a11.ext.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Mobile IP Extension Length.", HFILL }
|
|
},
|
|
{ &hf_a11_ext,
|
|
{ "Extension", "a11.extension",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_aext_spi,
|
|
{ "SPI", "a11.auth.spi",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
"Authentication Header Security Parameter Index.", HFILL }
|
|
},
|
|
{ &hf_a11_aext_auth,
|
|
{ "Authenticator", "a11.auth.auth",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Authenticator.", HFILL }
|
|
},
|
|
{ &hf_a11_next_nai,
|
|
{ "NAI", "a11.nai",
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_ses_key,
|
|
{ "Key", "a11.ext.key",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
"Session Key.", HFILL }
|
|
},
|
|
{ &hf_a11_ses_sidver,
|
|
{ "Session ID Version", "a11.ext.sidver",
|
|
FT_UINT8, BASE_DEC, NULL, 3,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_a11_ses_mnsrid,
|
|
{ "MNSR-ID", "a11.ext.mnsrid",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_ses_msid_type,
|
|
{ "MSID Type", "a11.ext.msid_type",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"MSID Type.", HFILL }
|
|
},
|
|
{ &hf_a11_ses_msid_len,
|
|
{ "MSID Length", "a11.ext.msid_len",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"MSID Length.", HFILL }
|
|
},
|
|
{ &hf_a11_ses_msid,
|
|
{ "MSID(BCD)", "a11.ext.msid",
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
"MSID(BCD).", HFILL }
|
|
},
|
|
{ &hf_a11_ses_ptype,
|
|
{ "Protocol Type", "a11.ext.ptype",
|
|
FT_UINT16, BASE_HEX, VALS(a11_ses_ptype_vals), 0,
|
|
"Protocol Type.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_vid,
|
|
{ "Vendor ID", "a11.ext.vid",
|
|
FT_UINT32, BASE_HEX|BASE_EXT_STRING, &sminmpec_values_ext, 0,
|
|
"Vendor ID.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_apptype,
|
|
{ "Application Type", "a11.ext.apptype",
|
|
FT_UINT8, BASE_HEX, VALS(a11_ext_app), 0,
|
|
"Application Type.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_ppaddr,
|
|
{ "Anchor P-P Address", "a11.ext.ppaddr",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Anchor P-P Address.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_dormant,
|
|
{ "All Dormant Indicator", "a11.ext.dormant",
|
|
FT_UINT16, BASE_HEX, VALS(a11_ext_dormant), 0,
|
|
"All Dormant Indicator.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_code,
|
|
{ "Reply Code", "a11.ext.code",
|
|
FT_UINT8, BASE_DEC, VALS(a11_reply_codes), 0,
|
|
"PDSN Code.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_pdit,
|
|
{ "PDSN Code", "a11.ext.code",
|
|
FT_UINT8, BASE_HEX, VALS(a11_ext_nvose_pdsn_code), 0,
|
|
"PDSN Code.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_srvopt,
|
|
{ "Service Option", "a11.ext.srvopt",
|
|
FT_UINT16, BASE_HEX, VALS(a11_ext_nvose_srvopt), 0,
|
|
"Service Option.", HFILL }
|
|
},
|
|
{ &hf_a11_vse_panid,
|
|
{ "PANID", "a11.ext.panid",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_vse_canid,
|
|
{ "CANID", "a11.ext.canid",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_vse_qosmode,
|
|
{ "QoS Mode", "a11.ext.qosmode",
|
|
FT_UINT8, BASE_HEX, VALS(a11_ext_nvose_qosmode), 0,
|
|
"QoS Mode.", HFILL }
|
|
},
|
|
{ &hf_a11_ase_len_type,
|
|
{ "Entry Length", "a11.ext.ase.len",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Entry Length.", HFILL }
|
|
},
|
|
{ &hf_a11_ase_srid_type,
|
|
{ "Service Reference ID (SRID)", "a11.ext.ase.srid",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Service Reference ID (SRID).", HFILL }
|
|
},
|
|
{ &hf_a11_ase_servopt_type,
|
|
{ "Service Option", "a11.ext.ase.srvopt",
|
|
FT_UINT16, BASE_HEX, VALS(a11_ext_nvose_srvopt), 0,
|
|
"Service Option.", HFILL }
|
|
},
|
|
{ &hf_a11_ase_gre_proto_type,
|
|
{ "GRE Protocol Type", "a11.ext.ase.ptype",
|
|
FT_UINT16, BASE_HEX, VALS(a11_ses_ptype_vals), 0,
|
|
"GRE Protocol Type.", HFILL }
|
|
},
|
|
{ &hf_a11_ase_gre_key,
|
|
{ "GRE Key", "a11.ext.ase.key",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
"GRE Key.", HFILL }
|
|
},
|
|
{ &hf_a11_ase_pcf_addr_key,
|
|
{ "PCF IP Address", "a11.ext.ase.pcfip",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"PCF IP Address.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_length,
|
|
{ "Length", "a11.ext.fqi.length",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_fqi_srid,
|
|
{ "SRID", "a11.ext.fqi.srid",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Flow Entry SRID.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_flags,
|
|
{ "Flags", "a11.ext.fqi.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Forward Flow Entry Flags.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_flowcount,
|
|
{ "Forward Flow Count", "a11.ext.fqi.flowcount",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Flow Count.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_flowid,
|
|
{ "Forward Flow Id", "a11.ext.fqi.flowid",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Flow Id.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_entrylen,
|
|
{ "Entry Length", "a11.ext.fqi.entrylen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Entry Length.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_dscp,
|
|
{ "Forward DSCP", "a11.ext.fqi.dscp",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Forward Flow DSCP.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_flowstate,
|
|
{ "Forward Flow State", "a11.ext.fqi.flowstate",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Forward Flow State.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_requested_qoslen,
|
|
{ "Requested QoS Length", "a11.ext.fqi.reqqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Requested QoS Length.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_requested_qos,
|
|
{ "Requested QoS", "a11.ext.fqi.reqqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Forward Requested QoS.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_granted_qoslen,
|
|
{ "Granted QoS Length", "a11.ext.fqi.graqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Granted QoS Length.", HFILL }
|
|
},
|
|
{ &hf_a11_fqi_granted_qos,
|
|
{ "Granted QoS", "a11.ext.fqi.graqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Forward Granted QoS.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_length,
|
|
{ "Length", "a11.ext.rqi.length",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_a11_rqi_srid,
|
|
{ "SRID", "a11.ext.rqi.srid",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Flow Entry SRID.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_flowcount,
|
|
{ "Reverse Flow Count", "a11.ext.rqi.flowcount",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Flow Count.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_flowid,
|
|
{ "Reverse Flow Id", "a11.ext.rqi.flowid",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Flow Id.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_entrylen,
|
|
{ "Entry Length", "a11.ext.rqi.entrylen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Flow Entry Length.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_flowstate,
|
|
{ "Flow State", "a11.ext.rqi.flowstate",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Reverse Flow State.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_requested_qoslen,
|
|
{ "Requested QoS Length", "a11.ext.rqi.reqqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Requested QoS Length.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_requested_qos,
|
|
{ "Requested QoS", "a11.ext.rqi.reqqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Reverse Requested QoS.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_granted_qoslen,
|
|
{ "Granted QoS Length", "a11.ext.rqi.graqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Granted QoS Length.", HFILL }
|
|
},
|
|
{ &hf_a11_rqi_granted_qos,
|
|
{ "Granted QoS", "a11.ext.rqi.graqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Reverse Granted QoS.", HFILL }
|
|
},
|
|
{ &hf_a11_fqui_flowcount,
|
|
{ "Forward QoS Update Flow Count", "a11.ext.fqui.flowcount",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward QoS Update Flow Count.", HFILL }
|
|
},
|
|
{ &hf_a11_rqui_flowcount,
|
|
{ "Reverse QoS Update Flow Count", "a11.ext.rqui.flowcount",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse QoS Update Flow Count.", HFILL }
|
|
},
|
|
{ &hf_a11_fqui_updated_qoslen,
|
|
{ "Forward Updated QoS Sub-Blob Length", "a11.ext.fqui.updatedqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Forward Updated QoS Sub-Blob Length.", HFILL }
|
|
},
|
|
{ &hf_a11_fqui_updated_qos,
|
|
{ "Forward Updated QoS Sub-Blob", "a11.ext.fqui.updatedqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Forward Updated QoS Sub-Blob.", HFILL }
|
|
},
|
|
{ &hf_a11_rqui_updated_qoslen,
|
|
{ "Reverse Updated QoS Sub-Blob Length", "a11.ext.rqui.updatedqoslen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Reverse Updated QoS Sub-Blob Length.", HFILL }
|
|
},
|
|
{ &hf_a11_rqui_updated_qos,
|
|
{ "Reverse Updated QoS Sub-Blob", "a11.ext.rqui.updatedqos",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Reverse Updated QoS Sub-Blob.", HFILL }
|
|
},
|
|
{ & hf_a11_subsciber_profile_len,
|
|
{ "Subscriber QoS Profile Length", "a11.ext.sqp.profilelen",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Subscriber QoS Profile Length.", HFILL }
|
|
},
|
|
{ & hf_a11_subsciber_profile,
|
|
{ "Subscriber QoS Profile", "a11.ext.sqp.profile",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Subscriber QoS Profile.", HFILL }
|
|
},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_a11,
|
|
&ett_a11_flags,
|
|
&ett_a11_ext,
|
|
&ett_a11_exts,
|
|
&ett_a11_radius,
|
|
&ett_a11_radiuses,
|
|
&ett_a11_ase,
|
|
&ett_a11_fqi_flowentry,
|
|
&ett_a11_rqi_flowentry,
|
|
&ett_a11_fqi_flags,
|
|
&ett_a11_fqi_entry_flags,
|
|
&ett_a11_rqi_entry_flags,
|
|
&ett_a11_fqui_flowentry,
|
|
&ett_a11_rqui_flowentry,
|
|
&ett_a11_subscriber_profile,
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_a11 = proto_register_protocol("3GPP2 A11", "3GPP2 A11", "a11");
|
|
|
|
/* Register the dissector by name */
|
|
new_register_dissector("a11", dissect_a11, proto_a11);
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_a11, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_a11(void)
|
|
{
|
|
dissector_handle_t a11_handle;
|
|
|
|
a11_handle = find_dissector("a11");
|
|
dissector_add_uint("udp.port", UDP_PORT_3GA11, a11_handle);
|
|
}
|