forked from osmocom/wireshark
3129 lines
101 KiB
C
3129 lines
101 KiB
C
/* packet-bootp.c
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* Routines for BOOTP/DHCP packet disassembly
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* Copyright 1998, Gilbert Ramirez <gram@alumni.rice.edu>
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* Copyright 2004, Thomas Anders <thomas.anders [AT] blue-cable.de>
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*
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* $Id$
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*
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* The information used comes from:
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* RFC 951: Bootstrap Protocol
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* RFC 1497: BOOTP extensions
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* RFC 1542: Clarifications and Extensions for the Bootstrap Protocol
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* RFC 2131: Dynamic Host Configuration Protocol
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* RFC 2132: DHCP Options and BOOTP Vendor Extensions
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* RFC 2241: DHCP Options for Novell Directory Services
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* RFC 2242: NetWare/IP Domain Name and Information
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* RFC 2489: Procedure for Defining New DHCP Options
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* RFC 2610: DHCP Options for Service Location Protocol
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* RFC 3046: DHCP Relay Agent Information Option
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* RFC 3118: Authentication for DHCP Messages
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* RFC 3203: DHCP reconfigure extension
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* RFC 3495: DHCP Option (122) for CableLabs Client Configuration
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* RFC 3594: PacketCable Security Ticket Control Sub-Option (122.9)
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* draft-ietf-dhc-fqdn-option-07.txt
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* BOOTP and DHCP Parameters
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* http://www.iana.org/assignments/bootp-dhcp-parameters
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* DOCSIS(TM) 2.0 Radio Frequency Interface Specification
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* http://www.cablemodem.com/downloads/specs/CM-SP-RFIv2.0-I06-040804.pdf
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* PacketCable(TM) MTA Device Provisioning Specification
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* http://www.packetcable.com/downloads/specs/PKT-SP-PROV-I10-040730.pdf
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* http://www.cablelabs.com/specifications/archives/PKT-SP-PROV-I05-021127.pdf (superseded by above)
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* CableHome(TM) 1.1 Specification
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* http://www.cablelabs.com/projects/cablehome/downloads/specs/CH-SP-CH1.1-I05-040806.pdf
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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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/*
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* Some of the development of the BOOTP/DHCP protocol decoder was sponsored by
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* Cable Television Laboratories, Inc. ("CableLabs") based upon proprietary
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* CableLabs' specifications. Your license and use of this protocol decoder
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* does not mean that you are licensed to use the CableLabs'
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* specifications. If you have questions about this protocol, contact
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* jf.mule [AT] cablelabs.com or c.stuart [AT] cablelabs.com for additional
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* information.
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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 <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include "packet-arp.h"
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#include "packet-dns.h" /* for get_dns_name() */
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#include <epan/addr_resolv.h>
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#include <epan/prefs.h>
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#include <epan/tap.h>
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#include <epan/strutil.h>
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#include <epan/arptypes.h>
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static int bootp_dhcp_tap = -1;
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static int proto_bootp = -1;
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static int hf_bootp_type = -1;
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static int hf_bootp_hw_type = -1;
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static int hf_bootp_hw_len = -1;
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static int hf_bootp_hops = -1;
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static int hf_bootp_id = -1;
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static int hf_bootp_secs = -1;
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static int hf_bootp_flags = -1;
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static int hf_bootp_flags_broadcast = -1;
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static int hf_bootp_flags_reserved = -1;
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static int hf_bootp_ip_client = -1;
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static int hf_bootp_ip_your = -1;
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static int hf_bootp_ip_server = -1;
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static int hf_bootp_ip_relay = -1;
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static int hf_bootp_hw_addr = -1;
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static int hf_bootp_server = -1;
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static int hf_bootp_file = -1;
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static int hf_bootp_cookie = -1;
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static int hf_bootp_vendor = -1;
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static int hf_bootp_dhcp = -1;
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static int hf_bootp_fqdn_s = -1;
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static int hf_bootp_fqdn_o = -1;
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static int hf_bootp_fqdn_e = -1;
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static int hf_bootp_fqdn_n = -1;
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static int hf_bootp_fqdn_mbz = -1;
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static int hf_bootp_fqdn_rcode1 = -1;
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static int hf_bootp_fqdn_rcode2 = -1;
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static int hf_bootp_fqdn_name = -1;
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static int hf_bootp_fqdn_asciiname = -1;
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static int hf_bootp_pkt_mtacap_len = -1;
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static int hf_bootp_docsis_cmcap_len = -1;
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static int hf_bootp_hw_ether_addr = -1;
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static gint ett_bootp = -1;
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static gint ett_bootp_flags = -1;
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static gint ett_bootp_option = -1;
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static gint ett_bootp_fqdn = -1;
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gboolean novell_string = FALSE;
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#define UDP_PORT_BOOTPS 67
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#define UDP_PORT_BOOTPC 68
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#define BOOTP_BC 0x8000
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#define BOOTP_MBZ 0x7FFF
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/* FQDN stuff */
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#define F_FQDN_S 0x01
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#define F_FQDN_O 0x02
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#define F_FQDN_E 0x04
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#define F_FQDN_N 0x08
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#define F_FQDN_MBZ 0xf0
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static const true_false_string tfs_fqdn_s = {
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"Server",
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"Client"
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};
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static const true_false_string tfs_fqdn_o = {
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"Override",
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"No override"
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};
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static const true_false_string tfs_fqdn_e = {
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"Binary encoding",
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"ASCII encoding"
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};
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static const true_false_string tfs_fqdn_n = {
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"No server updates",
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"Some server updates"
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};
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enum field_type {
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special,
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none,
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presence,
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ipv4, /* single IPv4 address */
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ipv4_list, /* list of IPv4 addresses */
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string,
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bytes,
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opaque,
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val_boolean,
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val_u_byte,
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val_u_short,
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val_u_short_list,
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val_u_le_short,
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val_u_long,
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time_in_secs,
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fqdn,
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ipv4_or_fqdn
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};
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struct opt_info {
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char *text;
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enum field_type ftype;
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const void *data;
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};
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static const true_false_string flag_set_broadcast = {
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"Broadcast",
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"Unicast"
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};
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/* PacketCable definitions */
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#define PACKETCABLE_MTA_CAP10 "pktc1.0:"
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#define PACKETCABLE_MTA_CAP15 "pktc1.5:"
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#define PACKETCABLE_CM_CAP11 "docsis1.1:"
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#define PACKETCABLE_CM_CAP20 "docsis2.0:"
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#define PACKETCABLE_CCC_I05 1
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#define PACKETCABLE_CCC_DRAFT5 2
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#define PACKETCABLE_CCC_RFC_3495 3
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static enum_val_t pkt_ccc_protocol_versions[] = {
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{ "ccc_i05", "PKT-SP-PROV-I05-021127", PACKETCABLE_CCC_I05 },
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{ "ccc_draft_5", "IETF Draft 5", PACKETCABLE_CCC_DRAFT5 },
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{ "rfc_3495", "RFC 3495", PACKETCABLE_CCC_RFC_3495 },
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{ NULL, NULL, 0 }
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};
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static gint pkt_ccc_protocol_version = PACKETCABLE_CCC_RFC_3495;
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static gint pkt_ccc_option = 122;
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static int dissect_vendor_pxeclient_suboption(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend);
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static int dissect_vendor_cablelabs_suboption(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend);
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static int dissect_netware_ip_suboption(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend);
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static int bootp_dhcp_decode_agent_info(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend);
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static void dissect_packetcable_mta_cap(proto_tree *v_tree, tvbuff_t *tvb,
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int voff, int len);
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static void dissect_docsis_cm_cap(proto_tree *v_tree, tvbuff_t *tvb,
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int voff, int len);
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static int dissect_packetcable_i05_ccc(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend);
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static int dissect_packetcable_ietf_ccc(proto_tree *v_tree, tvbuff_t *tvb,
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int optoff, int optend, int revision);
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static const char *
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get_dhcp_type(guint8 byte)
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{
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static const char *opt53_text[] = {
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"Unknown Message Type",
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"Discover",
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"Offer",
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"Request",
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"Decline",
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"ACK",
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"NAK",
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"Release",
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"Inform",
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"Force Renew"
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};
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int i;
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if (byte > 0 && byte < (sizeof opt53_text / sizeof opt53_text[0]))
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i = byte;
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else
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i = 0;
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return opt53_text[i];
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}
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/* DHCP Authentication protocols */
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#define AUTHEN_PROTO_CONFIG_TOKEN 0
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#define AUTHEN_PROTO_DELAYED_AUTHEN 1
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/* DHCP Authentication algorithms for delayed authentication */
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#define AUTHEN_DELAYED_ALGO_HMAC_MD5 1
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/* DHCP Authentication Replay Detection Methods */
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#define AUTHEN_RDM_MONOTONIC_COUNTER 0x00
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/* DHCP Option Overload (option code 52) */
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#define OPT_OVERLOAD_FILE 1
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#define OPT_OVERLOAD_SNAME 2
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#define OPT_OVERLOAD_BOTH 3
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/* Server name and boot file offsets and lengths */
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#define SERVER_NAME_OFFSET 44
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#define SERVER_NAME_LEN 64
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#define FILE_NAME_OFFSET 108
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#define FILE_NAME_LEN 128
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#define VENDOR_INFO_OFFSET 236
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static const true_false_string toggle_tfs = {
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"Enabled",
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"Disabled"
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};
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static const true_false_string yes_no_tfs = {
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"Yes",
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"No"
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};
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/* Returns the number of bytes consumed by this option. */
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static int
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bootp_option(tvbuff_t *tvb, proto_tree *bp_tree, int voff, int eoff,
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gboolean first_pass, gboolean *at_end, const char **dhcp_type_p,
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const guint8 **vendor_class_id_p)
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{
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char *text;
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enum field_type ftype;
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guchar code = tvb_get_guint8(tvb, voff);
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int optlen;
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const struct true_false_string *tfs;
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const value_string *vs;
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guchar byte;
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int i, consumed;
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int optoff, optleft, optend;
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gulong time_secs;
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proto_tree *v_tree, *o52tree, *flags_tree, *ft;
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proto_item *vti;
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guint8 protocol;
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guint8 algorithm;
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guint8 rdm;
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guint8 fqdn_flags;
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int o52voff, o52eoff;
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gboolean o52at_end;
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gboolean skip_opaque = FALSE;
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static const value_string nbnt_vals[] = {
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{0x1, "B-node" },
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{0x2, "P-node" },
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{0x4, "M-node" },
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{0x8, "H-node" },
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{0, NULL } };
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static const value_string slpda_vals[] = {
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{0x00, "Dynamic Discovery" },
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{0x01, "Static Discovery" },
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{0x80, "Backwards compatibility" },
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{0, NULL } };
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static const value_string slp_scope_vals[] = {
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{0x00, "Preferred Scope" },
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{0x01, "Mandatory Scope" },
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{0, NULL } };
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static const value_string authen_protocol_vals[] = {
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{AUTHEN_PROTO_CONFIG_TOKEN, "configuration token" },
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{AUTHEN_PROTO_DELAYED_AUTHEN, "delayed authentication" },
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{0, NULL } };
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static const value_string authen_da_algo_vals[] = {
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{AUTHEN_DELAYED_ALGO_HMAC_MD5, "HMAC_MD5" },
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{0, NULL } };
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static const value_string authen_rdm_vals[] = {
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{AUTHEN_RDM_MONOTONIC_COUNTER, "Monotonically-increasing counter" },
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{0, NULL } };
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static const value_string opt_overload_vals[] = {
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{ OPT_OVERLOAD_FILE, "Boot file name holds options", },
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{ OPT_OVERLOAD_SNAME, "Server host name holds options", },
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{ OPT_OVERLOAD_BOTH, "Boot file and server host names hold options" },
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{ 0, NULL } };
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static struct opt_info opt[] = {
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/* 0 */ { "Padding", none, NULL },
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/* 1 */ { "Subnet Mask", ipv4, NULL },
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/* 2 */ { "Time Offset", time_in_secs, NULL },
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/* 3 */ { "Router", ipv4_list, NULL },
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/* 4 */ { "Time Server", ipv4_list, NULL },
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/* 5 */ { "Name Server", ipv4_list, NULL },
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/* 6 */ { "Domain Name Server", ipv4_list, NULL },
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/* 7 */ { "Log Server", ipv4_list, NULL },
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/* 8 */ { "Cookie Server", ipv4_list, NULL },
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/* 9 */ { "LPR Server", ipv4_list, NULL },
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/* 10 */ { "Impress Server", ipv4_list, NULL },
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/* 11 */ { "Resource Location Server", ipv4_list, NULL },
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/* 12 */ { "Host Name", string, NULL },
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/* 13 */ { "Boot File Size", val_u_short, NULL },
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/* 14 */ { "Merit Dump File", string, NULL },
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/* 15 */ { "Domain Name", string, NULL },
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/* 16 */ { "Swap Server", ipv4, NULL },
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/* 17 */ { "Root Path", string, NULL },
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/* 18 */ { "Extensions Path", string, NULL },
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/* 19 */ { "IP Forwarding", val_boolean, TFS(&toggle_tfs) },
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/* 20 */ { "Non-Local Source Routing", val_boolean, TFS(&toggle_tfs) },
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/* 21 */ { "Policy Filter", special, NULL },
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/* 22 */ { "Maximum Datagram Reassembly Size", val_u_short, NULL },
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/* 23 */ { "Default IP Time-to-Live", val_u_byte, NULL },
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/* 24 */ { "Path MTU Aging Timeout", time_in_secs, NULL },
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/* 25 */ { "Path MTU Plateau Table", val_u_short_list, NULL },
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/* 26 */ { "Interface MTU", val_u_short, NULL },
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/* 27 */ { "All Subnets are Local", val_boolean, TFS(&yes_no_tfs) },
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/* 28 */ { "Broadcast Address", ipv4, NULL },
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/* 29 */ { "Perform Mask Discovery", val_boolean, TFS(&toggle_tfs) },
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/* 30 */ { "Mask Supplier", val_boolean, TFS(&yes_no_tfs) },
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/* 31 */ { "Perform Router Discover", val_boolean, TFS(&toggle_tfs) },
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/* 32 */ { "Router Solicitation Address", ipv4, NULL },
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/* 33 */ { "Static Route", special, NULL },
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/* 34 */ { "Trailer Encapsulation", val_boolean, TFS(&toggle_tfs) },
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/* 35 */ { "ARP Cache Timeout", time_in_secs, NULL },
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/* 36 */ { "Ethernet Encapsulation", val_boolean, TFS(&toggle_tfs) },
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/* 37 */ { "TCP Default TTL", val_u_byte, NULL },
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/* 38 */ { "TCP Keepalive Interval", time_in_secs, NULL },
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/* 39 */ { "TCP Keepalive Garbage", val_boolean, TFS(&toggle_tfs) },
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/* 40 */ { "Network Information Service Domain", string, NULL },
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/* 41 */ { "Network Information Service Servers", ipv4_list, NULL },
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/* 42 */ { "Network Time Protocol Servers", ipv4_list, NULL },
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/* 43 */ { "Vendor-Specific Information", special, NULL },
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/* 44 */ { "NetBIOS over TCP/IP Name Server", ipv4_list, NULL },
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/* 45 */ { "NetBIOS over TCP/IP Datagram Distribution Name Server", ipv4_list, NULL },
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/* 46 */ { "NetBIOS over TCP/IP Node Type", val_u_byte, VALS(nbnt_vals) },
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/* 47 */ { "NetBIOS over TCP/IP Scope", string, NULL },
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/* 48 */ { "X Window System Font Server", ipv4_list, NULL },
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/* 49 */ { "X Window System Display Manager", ipv4_list, NULL },
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/* 50 */ { "Requested IP Address", ipv4, NULL },
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/* 51 */ { "IP Address Lease Time", time_in_secs, NULL },
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/* 52 */ { "Option Overload", special, NULL },
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/* 53 */ { "DHCP Message Type", special, NULL },
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/* 54 */ { "Server Identifier", ipv4, NULL },
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/* 55 */ { "Parameter Request List", special, NULL },
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/* 56 */ { "Message", string, NULL },
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/* 57 */ { "Maximum DHCP Message Size", val_u_short, NULL },
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/* 58 */ { "Renewal Time Value", time_in_secs, NULL },
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/* 59 */ { "Rebinding Time Value", time_in_secs, NULL },
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/* 60 */ { "Vendor class identifier", special, NULL },
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/* 61 */ { "Client identifier", special, NULL },
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/* 62 */ { "Novell/Netware IP domain", string, NULL },
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/* 63 */ { "Novell Options", special, NULL },
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/* 64 */ { "Network Information Service+ Domain", string, NULL },
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/* 65 */ { "Network Information Service+ Servers", ipv4_list, NULL },
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/* 66 */ { "TFTP Server Name", string, NULL },
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/* 67 */ { "Bootfile name", string, NULL },
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/* 68 */ { "Mobile IP Home Agent", ipv4_list, NULL },
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/* 69 */ { "SMTP Server", ipv4_list, NULL },
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/* 70 */ { "POP3 Server", ipv4_list, NULL },
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/* 71 */ { "NNTP Server", ipv4_list, NULL },
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/* 72 */ { "Default WWW Server", ipv4_list, NULL },
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/* 73 */ { "Default Finger Server", ipv4_list, NULL },
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/* 74 */ { "Default IRC Server", ipv4_list, NULL },
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/* 75 */ { "StreetTalk Server", ipv4_list, NULL },
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/* 76 */ { "StreetTalk Directory Assistance Server", ipv4_list, NULL },
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/* 77 */ { "User Class Information", opaque, NULL },
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/* 78 */ { "Directory Agent Information", special, NULL },
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/* 79 */ { "Service Location Agent Scope", special, NULL },
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/* 80 */ { "Naming Authority", opaque, NULL },
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/* 81 */ { "Client Fully Qualified Domain Name", special, NULL },
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/* 82 */ { "Agent Information Option", special, NULL },
|
|
/* 83 */ { "Unassigned", opaque, NULL },
|
|
/* 84 */ { "Unassigned", opaque, NULL },
|
|
/* 85 */ { "Novell Directory Services Servers", special, NULL },
|
|
/* 86 */ { "Novell Directory Services Tree Name", string, NULL },
|
|
/* 87 */ { "Novell Directory Services Context", string, NULL },
|
|
/* 88 */ { "IEEE 1003.1 POSIX Timezone", opaque, NULL },
|
|
/* 89 */ { "Fully Qualified Domain Name", opaque, NULL },
|
|
/* 90 */ { "Authentication", special, NULL },
|
|
/* 91 */ { "Vines TCP/IP Server Option", opaque, NULL },
|
|
/* 92 */ { "Server Selection Option", opaque, NULL },
|
|
/* 93 */ { "Client System Architecture", opaque, NULL },
|
|
/* 94 */ { "Client Network Device Interface", opaque, NULL },
|
|
/* 95 */ { "Lightweight Directory Access Protocol", opaque, NULL },
|
|
/* 96 */ { "IPv6 Transitions", opaque, NULL },
|
|
/* 97 */ { "UUID/GUID-based Client Identifier", opaque, NULL },
|
|
/* 98 */ { "Open Group's User Authentication", opaque, NULL },
|
|
/* 99 */ { "Unassigned", opaque, NULL },
|
|
/* 100 */ { "Printer Name", opaque, NULL },
|
|
/* 101 */ { "MDHCP multicast address", opaque, NULL },
|
|
/* 102 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 103 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 104 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 105 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 106 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 107 */ { "Removed/unassigned", opaque, NULL },
|
|
/* 108 */ { "Swap Path Option", opaque, NULL },
|
|
/* 109 */ { "Unassigned", opaque, NULL },
|
|
/* 110 */ { "IPX Compability", opaque, NULL },
|
|
/* 111 */ { "Unassigned", opaque, NULL },
|
|
/* 112 */ { "NetInfo Parent Server Address", ipv4_list, NULL },
|
|
/* 113 */ { "NetInfo Parent Server Tag", string, NULL },
|
|
/* 114 */ { "URL", opaque, NULL },
|
|
/* 115 */ { "DHCP Failover Protocol", opaque, NULL },
|
|
/* 116 */ { "DHCP Auto-Configuration", opaque, NULL },
|
|
/* 117 */ { "Name Service Search", opaque, NULL },
|
|
/* 118 */ { "Subnet Selection Option", opaque, NULL },
|
|
/* 119 */ { "Domain Search", opaque, NULL },
|
|
/* 120 */ { "SIP Servers", opaque, NULL },
|
|
/* 121 */ { "Classless Static Route", opaque, NULL },
|
|
/* 122 */ { "CableLabs Client Configuration", opaque, NULL },
|
|
/* 123 */ { "Unassigned", opaque, NULL },
|
|
/* 124 */ { "Unassigned", opaque, NULL },
|
|
/* 125 */ { "Unassigned", opaque, NULL },
|
|
/* 126 */ { "Extension", opaque, NULL },
|
|
/* 127 */ { "Extension", opaque, NULL },
|
|
/* 128 */ { "Private", opaque, NULL },
|
|
/* 129 */ { "Private", opaque, NULL },
|
|
/* 130 */ { "Private", opaque, NULL },
|
|
/* 131 */ { "Private", opaque, NULL },
|
|
/* 132 */ { "Private", opaque, NULL },
|
|
/* 133 */ { "Private", opaque, NULL },
|
|
/* 134 */ { "Private", opaque, NULL },
|
|
/* 135 */ { "Private", opaque, NULL },
|
|
/* 136 */ { "Private", opaque, NULL },
|
|
/* 137 */ { "Private", opaque, NULL },
|
|
/* 138 */ { "Private", opaque, NULL },
|
|
/* 139 */ { "Private", opaque, NULL },
|
|
/* 140 */ { "Private", opaque, NULL },
|
|
/* 141 */ { "Private", opaque, NULL },
|
|
/* 142 */ { "Private", opaque, NULL },
|
|
/* 143 */ { "Private", opaque, NULL },
|
|
/* 144 */ { "Private", opaque, NULL },
|
|
/* 145 */ { "Private", opaque, NULL },
|
|
/* 146 */ { "Private", opaque, NULL },
|
|
/* 147 */ { "Private", opaque, NULL },
|
|
/* 148 */ { "Private", opaque, NULL },
|
|
/* 149 */ { "Private", opaque, NULL },
|
|
/* 150 */ { "Private", opaque, NULL },
|
|
/* 151 */ { "Private", opaque, NULL },
|
|
/* 152 */ { "Private", opaque, NULL },
|
|
/* 153 */ { "Private", opaque, NULL },
|
|
/* 154 */ { "Private", opaque, NULL },
|
|
/* 155 */ { "Private", opaque, NULL },
|
|
/* 156 */ { "Private", opaque, NULL },
|
|
/* 157 */ { "Private", opaque, NULL },
|
|
/* 158 */ { "Private", opaque, NULL },
|
|
/* 159 */ { "Private", opaque, NULL },
|
|
/* 160 */ { "Private", opaque, NULL },
|
|
/* 161 */ { "Private", opaque, NULL },
|
|
/* 162 */ { "Private", opaque, NULL },
|
|
/* 163 */ { "Private", opaque, NULL },
|
|
/* 164 */ { "Private", opaque, NULL },
|
|
/* 165 */ { "Private", opaque, NULL },
|
|
/* 166 */ { "Private", opaque, NULL },
|
|
/* 167 */ { "Private", opaque, NULL },
|
|
/* 168 */ { "Private", opaque, NULL },
|
|
/* 169 */ { "Private", opaque, NULL },
|
|
/* 170 */ { "Private", opaque, NULL },
|
|
/* 171 */ { "Private", opaque, NULL },
|
|
/* 172 */ { "Private", opaque, NULL },
|
|
/* 173 */ { "Private", opaque, NULL },
|
|
/* 174 */ { "Private", opaque, NULL },
|
|
/* 175 */ { "Private", opaque, NULL },
|
|
/* 176 */ { "Private", opaque, NULL },
|
|
/* 177 */ { "Private", opaque, NULL },
|
|
/* 178 */ { "Private", opaque, NULL },
|
|
/* 179 */ { "Private", opaque, NULL },
|
|
/* 180 */ { "Private", opaque, NULL },
|
|
/* 181 */ { "Private", opaque, NULL },
|
|
/* 182 */ { "Private", opaque, NULL },
|
|
/* 183 */ { "Private", opaque, NULL },
|
|
/* 184 */ { "Private", opaque, NULL },
|
|
/* 185 */ { "Private", opaque, NULL },
|
|
/* 186 */ { "Private", opaque, NULL },
|
|
/* 187 */ { "Private", opaque, NULL },
|
|
/* 188 */ { "Private", opaque, NULL },
|
|
/* 189 */ { "Private", opaque, NULL },
|
|
/* 190 */ { "Private", opaque, NULL },
|
|
/* 191 */ { "Private", opaque, NULL },
|
|
/* 192 */ { "Private", opaque, NULL },
|
|
/* 193 */ { "Private", opaque, NULL },
|
|
/* 194 */ { "Private", opaque, NULL },
|
|
/* 195 */ { "Private", opaque, NULL },
|
|
/* 196 */ { "Private", opaque, NULL },
|
|
/* 197 */ { "Private", opaque, NULL },
|
|
/* 198 */ { "Private", opaque, NULL },
|
|
/* 199 */ { "Private", opaque, NULL },
|
|
/* 200 */ { "Private", opaque, NULL },
|
|
/* 201 */ { "Private", opaque, NULL },
|
|
/* 202 */ { "Private", opaque, NULL },
|
|
/* 203 */ { "Private", opaque, NULL },
|
|
/* 204 */ { "Private", opaque, NULL },
|
|
/* 205 */ { "Private", opaque, NULL },
|
|
/* 206 */ { "Private", opaque, NULL },
|
|
/* 207 */ { "Private", opaque, NULL },
|
|
/* 208 */ { "Private", opaque, NULL },
|
|
/* 209 */ { "Private", opaque, NULL },
|
|
/* 210 */ { "Authentication", special, NULL }
|
|
};
|
|
|
|
/* Options whose length isn't "optlen + 2". */
|
|
switch (code) {
|
|
|
|
case 0: /* Padding */
|
|
/* check how much padding we have */
|
|
for (i = voff + 1; i < eoff; i++ ) {
|
|
if (tvb_get_guint8(tvb, i) != 0) {
|
|
break;
|
|
}
|
|
}
|
|
i = i - voff;
|
|
if (!first_pass) {
|
|
if (bp_tree != NULL) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, i,
|
|
"Padding");
|
|
}
|
|
}
|
|
consumed = i;
|
|
return consumed;
|
|
break;
|
|
|
|
case 255: /* End Option */
|
|
if (!first_pass) {
|
|
if (bp_tree != NULL) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, 1,
|
|
"End Option");
|
|
}
|
|
}
|
|
*at_end = TRUE;
|
|
consumed = 1;
|
|
return consumed;
|
|
}
|
|
|
|
/*
|
|
* Get the length of the option, and the number of bytes it
|
|
* consumes (the length doesn't include the option code or
|
|
* length bytes).
|
|
*
|
|
* On the first pass, check first whether we have the length
|
|
* byte, so that we don't throw an exception; if we throw an
|
|
* exception in the first pass, which is only checking for options
|
|
* whose values we need in order to properly dissect the packet
|
|
* on the second pass, we won't actually dissect the options, so
|
|
* you won't be able to see which option had the problem.
|
|
*/
|
|
if (first_pass) {
|
|
if (!tvb_bytes_exist(tvb, voff+1, 1)) {
|
|
/*
|
|
* We don't have the length byte; just return 1
|
|
* as the number of bytes we consumed, to count
|
|
* the code byte.
|
|
*/
|
|
return 1;
|
|
}
|
|
}
|
|
optlen = tvb_get_guint8(tvb, voff+1);
|
|
consumed = optlen + 2;
|
|
|
|
/*
|
|
* In the first pass, we don't put anything into the protocol
|
|
* tree; we just check for some options we have to look at
|
|
* in order to properly process the packet:
|
|
*
|
|
* 53 (DHCP message type) - if this is present, this is DHCP
|
|
*
|
|
* 60 (Vendor class identifier) - we need this in order to
|
|
* interpret the vendor-specific info
|
|
*
|
|
* We also check, before fetching anything, to make sure we
|
|
* have the entire item we're fetching, so that we don't throw
|
|
* an exception.
|
|
*/
|
|
if (first_pass) {
|
|
if (tvb_bytes_exist(tvb, voff+2, consumed-2)) {
|
|
switch (code) {
|
|
|
|
case 53:
|
|
*dhcp_type_p =
|
|
get_dhcp_type(tvb_get_guint8(tvb, voff+2));
|
|
break;
|
|
|
|
case 60:
|
|
*vendor_class_id_p =
|
|
tvb_get_ptr(tvb, voff+2, consumed-2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We don't do anything else here.
|
|
*/
|
|
return consumed;
|
|
}
|
|
|
|
/*
|
|
* This is the second pass - if there's a protocol tree to be
|
|
* built, we put stuff into it, otherwise we just return.
|
|
*/
|
|
if (bp_tree == NULL) {
|
|
/* Don't put anything in the protocol tree. */
|
|
return consumed;
|
|
}
|
|
|
|
optoff = voff+2;
|
|
|
|
text = opt[code].text;
|
|
/* Special cases */
|
|
switch (code) {
|
|
|
|
case 21: /* Policy Filter */
|
|
if (optlen == 8) {
|
|
/* one IP address pair */
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s/%s", code, text,
|
|
ip_to_str(tvb_get_ptr(tvb, optoff, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb, optoff+4, 4)));
|
|
} else {
|
|
/* > 1 IP address pair. Let's make a sub-tree */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff, optleft = optlen;
|
|
optleft > 0; i += 8, optleft -= 8) {
|
|
if (optleft < 8) {
|
|
proto_tree_add_text(v_tree, tvb, i, optleft,
|
|
"Option length isn't a multiple of 8");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 8, "IP Address/Mask: %s/%s",
|
|
ip_to_str(tvb_get_ptr(tvb, i, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb, i+4, 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 33: /* Static Route */
|
|
if (optlen == 8) {
|
|
/* one IP address pair */
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s/%s", code, text,
|
|
ip_to_str(tvb_get_ptr(tvb, optoff, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb, optoff+4, 4)));
|
|
} else {
|
|
/* > 1 IP address pair. Let's make a sub-tree */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff, optleft = optlen; optleft > 0;
|
|
i += 8, optleft -= 8) {
|
|
if (optleft < 8) {
|
|
proto_tree_add_text(v_tree, tvb, i, optleft,
|
|
"Option length isn't a multiple of 8");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 8,
|
|
"Destination IP Address/Router: %s/%s",
|
|
ip_to_str(tvb_get_ptr(tvb, i, 4)),
|
|
ip_to_str(tvb_get_ptr(tvb, i+4, 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 43: /* Vendor-Specific Info */
|
|
/* PXE protocol 2.1 as described in the intel specs */
|
|
if (*vendor_class_id_p != NULL &&
|
|
strncmp(*vendor_class_id_p, "PXEClient", strlen("PXEClient")) == 0) {
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s (PXEClient)", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
|
|
optend = optoff + optlen;
|
|
while (optoff < optend) {
|
|
optoff = dissect_vendor_pxeclient_suboption(v_tree,
|
|
tvb, optoff, optend);
|
|
}
|
|
} else if (*vendor_class_id_p != NULL &&
|
|
((strncmp(*vendor_class_id_p, "pktc", strlen("pktc")) == 0) ||
|
|
(strncmp(*vendor_class_id_p, "docsis", strlen("docsis")) == 0) ||
|
|
(strncmp(*vendor_class_id_p, "CableHome", strlen("CableHome")) == 0))) {
|
|
/* CableLabs standard - see www.cablelabs.com/projects */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s (CableLabs)", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
|
|
optend = optoff + optlen;
|
|
while (optoff < optend) {
|
|
optoff = dissect_vendor_cablelabs_suboption(v_tree,
|
|
tvb, optoff, optend);
|
|
}
|
|
} else {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s (%d bytes)", code, text, optlen);
|
|
}
|
|
break;
|
|
|
|
case 52: /* Option Overload */
|
|
if (optlen < 1) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: length isn't >= 1", code);
|
|
break;
|
|
}
|
|
byte = tvb_get_guint8(tvb, optoff);
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s", code, text,
|
|
val_to_str(byte, opt_overload_vals,
|
|
"Unknown (0x%02x)"));
|
|
|
|
/* Just in case we find an option 52 in sname or file */
|
|
if (voff > VENDOR_INFO_OFFSET && byte >= 1 && byte <= 3) {
|
|
o52tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
if (byte == 1 || byte == 3) { /* 'file' */
|
|
vti = proto_tree_add_text (o52tree, tvb,
|
|
FILE_NAME_OFFSET, FILE_NAME_LEN,
|
|
"Boot file name option overload");
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
o52voff = FILE_NAME_OFFSET;
|
|
o52eoff = FILE_NAME_OFFSET + FILE_NAME_LEN;
|
|
o52at_end = FALSE;
|
|
while (o52voff < o52eoff && !o52at_end) {
|
|
o52voff += bootp_option(tvb, v_tree, o52voff,
|
|
o52eoff, FALSE, &o52at_end,
|
|
dhcp_type_p, vendor_class_id_p);
|
|
}
|
|
}
|
|
if (byte == 2 || byte == 3) { /* 'sname' */
|
|
vti = proto_tree_add_text (o52tree, tvb,
|
|
SERVER_NAME_OFFSET, SERVER_NAME_LEN,
|
|
"Server host name option overload");
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
o52voff = SERVER_NAME_OFFSET;
|
|
o52eoff = SERVER_NAME_OFFSET + SERVER_NAME_LEN;
|
|
o52at_end = FALSE;
|
|
while (o52voff < o52eoff && !o52at_end) {
|
|
o52voff += bootp_option(tvb, v_tree, o52voff,
|
|
o52eoff, FALSE, &o52at_end,
|
|
dhcp_type_p, vendor_class_id_p);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* protocol = tvb_get_guint8(tvb, optoff);
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "Protocol: %s (%u)",
|
|
val_to_str(protocol, authen_protocol_vals, "Unknown"),
|
|
protocol); */
|
|
break;
|
|
|
|
case 53: /* DHCP Message Type */
|
|
if (optlen != 1) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: length isn't 1", code);
|
|
break;
|
|
}
|
|
proto_tree_add_text(bp_tree, tvb, voff, 3, "Option %d: %s = DHCP %s",
|
|
code, text, get_dhcp_type(tvb_get_guint8(tvb, optoff)));
|
|
break;
|
|
|
|
case 55: /* Parameter Request List */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = 0; i < optlen; i++) {
|
|
byte = tvb_get_guint8(tvb, optoff+i);
|
|
if (byte < array_length(opt)) {
|
|
proto_tree_add_text(v_tree, tvb, optoff+i, 1, "%d = %s",
|
|
byte, opt[byte].text);
|
|
} else {
|
|
proto_tree_add_text(vti, tvb, optoff+i, 1,
|
|
"Unknown Option Code: %d", byte);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 60: /* Vendor class identifier */
|
|
/*
|
|
* XXX - RFC 2132 says this is a string of octets;
|
|
* should we check for non-printables?
|
|
*/
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = \"%s\"", code, text,
|
|
tvb_format_stringzpad(tvb, optoff, consumed-2));
|
|
if ((tvb_memeql(tvb, optoff, PACKETCABLE_MTA_CAP10, strlen(PACKETCABLE_MTA_CAP10)) == 0) ||
|
|
(tvb_memeql(tvb, optoff, PACKETCABLE_MTA_CAP15, strlen(PACKETCABLE_MTA_CAP10)) == 0)) {
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
dissect_packetcable_mta_cap(v_tree, tvb, optoff, optlen);
|
|
} else if (tvb_memeql(tvb, optoff, PACKETCABLE_CM_CAP11, strlen(PACKETCABLE_CM_CAP11)) == 0 ||
|
|
tvb_memeql(tvb, optoff, PACKETCABLE_CM_CAP20, strlen(PACKETCABLE_CM_CAP20)) == 0 ) {
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
dissect_docsis_cm_cap(v_tree, tvb, optoff, optlen);
|
|
}
|
|
break;
|
|
|
|
case 61: /* Client Identifier */
|
|
if (optlen > 0)
|
|
byte = tvb_get_guint8(tvb, optoff);
|
|
else
|
|
byte = 0;
|
|
|
|
/* We *MAY* use hwtype/hwaddr. If we have 7 bytes, I'll
|
|
guess that the first is the hwtype, and the last 6
|
|
are the hw addr */
|
|
/* See http://www.iana.org/assignments/arp-parameters */
|
|
/* RFC2132 9.14 Client-identifier has the following to say:
|
|
A hardware type of 0 (zero) should be used when the value
|
|
field contains an identifier other than a hardware address
|
|
(e.g. a fully qualified domain name). */
|
|
|
|
if (optlen == 7 && byte > 0 && byte < 48) {
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Hardware type: %s",
|
|
arphrdtype_to_str(byte,
|
|
"Unknown (0x%02x)"));
|
|
if (byte == ARPHRD_ETHER || byte == ARPHRD_IEEE802)
|
|
proto_tree_add_item(v_tree,
|
|
hf_bootp_hw_ether_addr, tvb, optoff+1, 6,
|
|
FALSE);
|
|
else
|
|
proto_tree_add_text(v_tree, tvb, optoff+1, 6,
|
|
"Client hardware address: %s",
|
|
arphrdaddr_to_str(tvb_get_ptr(tvb, optoff+1, 6),
|
|
6, byte));
|
|
} else {
|
|
/* otherwise, it's opaque data */
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s (%d bytes)", code, text, optlen);
|
|
}
|
|
break;
|
|
|
|
case 63: /* NetWare/IP options (RFC 2242) */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
|
|
optend = optoff + optlen;
|
|
while (optoff < optend)
|
|
optoff = dissect_netware_ip_suboption(v_tree, tvb, optoff, optend);
|
|
break;
|
|
|
|
case 78: /* SLP Directory Agent Option RFC2610 Added by Greg Morris (gmorris@novell.com)*/
|
|
if (optlen < 1) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: length isn't >= 1", code);
|
|
break;
|
|
}
|
|
optleft = optlen;
|
|
byte = tvb_get_guint8(tvb, optoff);
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s", code, text,
|
|
val_to_str(byte, slpda_vals,
|
|
"Unknown (0x%02x)"));
|
|
optoff++;
|
|
optleft--;
|
|
if (byte == 0x80) {
|
|
if (optleft == 0)
|
|
break;
|
|
optoff++;
|
|
optleft--;
|
|
}
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff; optleft > 0; i += 4, optleft -= 4) {
|
|
if (optleft < 4) {
|
|
proto_tree_add_text(v_tree, tvb, i, optleft,
|
|
"Option length isn't a multiple of 4");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 4, "SLPDA Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, i, 4)));
|
|
}
|
|
break;
|
|
|
|
case 79: /* SLP Service Scope Option RFC2610 Added by Greg Morris (gmorris@novell.com)*/
|
|
byte = tvb_get_guint8(tvb, optoff);
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s", code, text,
|
|
val_to_str(byte, slp_scope_vals,
|
|
"Unknown (0x%02x)"));
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
optoff++;
|
|
optleft = optlen - 1;
|
|
proto_tree_add_text(v_tree, tvb, optoff, optleft,
|
|
"%s = \"%s\"", text,
|
|
tvb_format_stringzpad(tvb, optoff, optleft));
|
|
break;
|
|
|
|
case 81: /* Client Fully Qualified Domain Name */
|
|
if (optlen < 3) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: length isn't >= 3", code);
|
|
break;
|
|
}
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: FQDN", code);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
fqdn_flags = tvb_get_guint8(tvb, optoff);
|
|
ft = proto_tree_add_text(v_tree, tvb, optoff, 1, "Flags: 0x%02x", fqdn_flags);
|
|
flags_tree = proto_item_add_subtree(ft, ett_bootp_fqdn);
|
|
proto_tree_add_item(flags_tree, hf_bootp_fqdn_mbz, tvb, optoff, 1, FALSE);
|
|
proto_tree_add_item(flags_tree, hf_bootp_fqdn_n, tvb, optoff, 1, FALSE);
|
|
proto_tree_add_item(flags_tree, hf_bootp_fqdn_e, tvb, optoff, 1, FALSE);
|
|
proto_tree_add_item(flags_tree, hf_bootp_fqdn_o, tvb, optoff, 1, FALSE);
|
|
proto_tree_add_item(flags_tree, hf_bootp_fqdn_s, tvb, optoff, 1, FALSE);
|
|
/* XXX: use code from packet-dns for return code decoding */
|
|
proto_tree_add_item(v_tree, hf_bootp_fqdn_rcode1, tvb, optoff+1, 1, FALSE);
|
|
/* XXX: use code from packet-dns for return code decoding */
|
|
proto_tree_add_item(v_tree, hf_bootp_fqdn_rcode2, tvb, optoff+2, 1, FALSE);
|
|
if (optlen > 3) {
|
|
if (fqdn_flags & F_FQDN_E) {
|
|
/* XXX: use code from packet-dns for binary encoded name */
|
|
proto_tree_add_item(v_tree, hf_bootp_fqdn_name,
|
|
tvb, optoff+3, optlen-3, FALSE);
|
|
|
|
} else {
|
|
proto_tree_add_item(v_tree, hf_bootp_fqdn_asciiname,
|
|
tvb, optoff+3, optlen-3, FALSE);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 82: /* Relay Agent Information Option */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s (%d bytes)",
|
|
code, text, optlen);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
optend = optoff + optlen;
|
|
while (optoff < optend)
|
|
optoff = bootp_dhcp_decode_agent_info(v_tree, tvb, optoff, optend);
|
|
break;
|
|
|
|
case 85: /* Novell Servers (RFC 2241) */
|
|
/* Option 85 can be sent as a string */
|
|
/* Added by Greg Morris (gmorris[AT]novell.com) */
|
|
if (novell_string) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = \"%s\"", code, text,
|
|
tvb_format_stringzpad(tvb, optoff, optlen));
|
|
} else {
|
|
if (optlen == 4) {
|
|
/* one IP address */
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s = %s", code, text,
|
|
ip_to_str(tvb_get_ptr(tvb, optoff, 4)));
|
|
} else {
|
|
/* > 1 IP addresses. Let's make a sub-tree */
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff, optleft = optlen; optleft > 0;
|
|
i += 4, optleft -= 4) {
|
|
if (optleft < 4) {
|
|
proto_tree_add_text(v_tree, tvb, i, optleft,
|
|
"Option length isn't a multiple of 4");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 4, "IP Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, i, 4)));
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 90: /* DHCP Authentication */
|
|
case 210: /* Was this used for authentication at one time? */
|
|
if (optlen < 11) {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: length isn't >= 11", code);
|
|
break;
|
|
}
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff,
|
|
consumed, "Option %d: %s", code, text);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
|
|
optleft = optlen;
|
|
protocol = tvb_get_guint8(tvb, optoff);
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "Protocol: %s (%u)",
|
|
val_to_str(protocol, authen_protocol_vals, "Unknown"),
|
|
protocol);
|
|
optoff++;
|
|
optleft--;
|
|
|
|
algorithm = tvb_get_guint8(tvb, optoff);
|
|
switch (protocol) {
|
|
|
|
case AUTHEN_PROTO_DELAYED_AUTHEN:
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Algorithm: %s (%u)",
|
|
val_to_str(algorithm, authen_da_algo_vals, "Unknown"),
|
|
algorithm);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Algorithm: %u", algorithm);
|
|
break;
|
|
}
|
|
optoff++;
|
|
optleft--;
|
|
|
|
rdm = tvb_get_guint8(tvb, optoff);
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Replay Detection Method: %s (%u)",
|
|
val_to_str(rdm, authen_rdm_vals, "Unknown"),
|
|
rdm);
|
|
optoff++;
|
|
optleft--;
|
|
|
|
switch (rdm) {
|
|
|
|
case AUTHEN_RDM_MONOTONIC_COUNTER:
|
|
proto_tree_add_text(v_tree, tvb, optoff, 8,
|
|
"Replay Detection Value: %" PRIx64,
|
|
tvb_get_ntoh64(tvb, optoff));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, 8,
|
|
"Replay Detection Value: %s",
|
|
tvb_bytes_to_str(tvb, optoff, 8));
|
|
break;
|
|
}
|
|
optoff += 8;
|
|
optleft -= 8;
|
|
|
|
switch (protocol) {
|
|
|
|
case AUTHEN_PROTO_DELAYED_AUTHEN:
|
|
switch (algorithm) {
|
|
|
|
case AUTHEN_DELAYED_ALGO_HMAC_MD5:
|
|
if (optlen < 31) {
|
|
proto_tree_add_text(bp_tree, tvb, 0, 0,
|
|
"Option %d: length isn't >= 31", code);
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 4,
|
|
"Secret ID: 0x%08x",
|
|
tvb_get_ntohl(tvb, optoff));
|
|
optoff += 4;
|
|
optleft -= 4;
|
|
proto_tree_add_text(v_tree, tvb, optoff, 16,
|
|
"HMAC MD5 Hash: %s",
|
|
tvb_bytes_to_str(tvb, optoff, 16));
|
|
break;
|
|
|
|
default:
|
|
if (optleft == 0)
|
|
break;
|
|
proto_tree_add_text(v_tree, tvb, optoff, optleft,
|
|
"Authentication Information: %s",
|
|
tvb_bytes_to_str(tvb, optoff, optleft));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (optleft == 0)
|
|
break;
|
|
proto_tree_add_text(v_tree, tvb, optoff, optleft,
|
|
"Authentication Information: %s",
|
|
tvb_bytes_to_str(tvb, optoff, optleft));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default: /* not special */
|
|
/* The PacketCable CCC option number can vary. If this is a CCC option,
|
|
handle it and skip the "opaque" case below.
|
|
*/
|
|
if (code == pkt_ccc_option) {
|
|
skip_opaque = TRUE;
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: CableLabs Client Configuration (%d bytes)",
|
|
code, optlen);
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
optend = optoff + optlen;
|
|
while (optoff < optend) {
|
|
switch (pkt_ccc_protocol_version) {
|
|
case PACKETCABLE_CCC_I05:
|
|
optoff = dissect_packetcable_i05_ccc(v_tree, tvb, optoff, optend);
|
|
break;
|
|
case PACKETCABLE_CCC_DRAFT5:
|
|
case PACKETCABLE_CCC_RFC_3495:
|
|
optoff = dissect_packetcable_ietf_ccc(v_tree, tvb, optoff, optend, pkt_ccc_protocol_version);
|
|
break;
|
|
default: /* XXX Should we do something here? */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* Normal cases */
|
|
if (code < array_length(opt)) {
|
|
text = opt[code].text;
|
|
ftype = opt[code].ftype;
|
|
|
|
if (ftype == special)
|
|
return consumed;
|
|
if (ftype == opaque) {
|
|
if (skip_opaque) /* Currently used by PacketCable CCC */
|
|
return consumed;
|
|
}
|
|
|
|
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Option %d: %s", code, text);
|
|
switch (ftype) {
|
|
|
|
case ipv4:
|
|
if (optlen != 4) {
|
|
proto_item_append_string(vti,
|
|
" - length isn't 4");
|
|
break;
|
|
}
|
|
proto_item_append_text(vti, " = %s",
|
|
ip_to_str(tvb_get_ptr(tvb, optoff, 4)));
|
|
break;
|
|
|
|
case ipv4_list:
|
|
if (optlen == 4) {
|
|
/* one IP address */
|
|
proto_item_append_text(vti, " = %s",
|
|
ip_to_str(tvb_get_ptr(tvb, optoff, 4)));
|
|
} else {
|
|
/* > 1 IP addresses. Let's make a sub-tree */
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff, optleft = optlen; optleft > 0;
|
|
i += 4, optleft -= 4) {
|
|
if (optleft < 4) {
|
|
proto_tree_add_text(v_tree, tvb, i, voff + consumed - i,
|
|
"Option length isn't a multiple of 4");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 4, "IP Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, i, 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case string:
|
|
/* Fix for non null-terminated string supplied by
|
|
* John Lines <John.Lines[AT]aeat.co.uk>
|
|
*/
|
|
proto_item_append_text(vti, " = \"%s\"",
|
|
tvb_format_stringzpad(tvb, optoff, consumed-2));
|
|
break;
|
|
|
|
case opaque:
|
|
proto_item_append_text(vti, " (%d bytes)", optlen);
|
|
break;
|
|
|
|
case val_boolean:
|
|
if (optlen != 1) {
|
|
proto_item_append_text(vti,
|
|
" - length isn't 1");
|
|
break;
|
|
}
|
|
tfs = (const struct true_false_string *) opt[code].data;
|
|
i = tvb_get_guint8(tvb, optoff);
|
|
if (i != 0 && i != 1) {
|
|
proto_item_append_text(vti,
|
|
" = Invalid Value %d", i);
|
|
} else {
|
|
proto_item_append_text(vti, " = %s",
|
|
i == 0 ? tfs->false_string : tfs->true_string);
|
|
}
|
|
break;
|
|
|
|
case val_u_byte:
|
|
if (optlen != 1) {
|
|
proto_item_append_text(vti,
|
|
" - length isn't 1");
|
|
break;
|
|
}
|
|
vs = (const value_string *) opt[code].data;
|
|
byte = tvb_get_guint8(tvb, optoff);
|
|
if (vs != NULL) {
|
|
proto_item_append_text(vti, " = %s",
|
|
val_to_str(byte, vs, "Unknown (%u)"));
|
|
} else
|
|
proto_item_append_text(vti, " = %u", byte);
|
|
break;
|
|
|
|
case val_u_short:
|
|
if (optlen != 2) {
|
|
proto_item_append_text(vti,
|
|
" - length isn't 2");
|
|
break;
|
|
}
|
|
proto_item_append_text(vti, " = %u",
|
|
tvb_get_ntohs(tvb, optoff));
|
|
break;
|
|
|
|
case val_u_short_list:
|
|
if (optlen == 2) {
|
|
/* one gushort */
|
|
proto_item_append_text(vti, " = %u",
|
|
tvb_get_ntohs(tvb, optoff));
|
|
} else {
|
|
/* > 1 gushort */
|
|
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = optoff, optleft = optlen; optleft > 0;
|
|
i += 2, optleft -= 2) {
|
|
if (optleft < 2) {
|
|
proto_tree_add_text(v_tree, tvb, i, voff + consumed - i,
|
|
"Option length isn't a multiple of 2");
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, i, 4, "Value: %u",
|
|
tvb_get_ntohs(tvb, i));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case val_u_long:
|
|
if (optlen != 4) {
|
|
proto_item_append_text(vti,
|
|
" - length isn't 4");
|
|
break;
|
|
}
|
|
proto_item_append_text(vti, " = %u",
|
|
tvb_get_ntohl(tvb, optoff));
|
|
break;
|
|
|
|
case time_in_secs:
|
|
if (optlen != 4) {
|
|
proto_item_append_text(vti,
|
|
" - length isn't 4");
|
|
break;
|
|
}
|
|
time_secs = tvb_get_ntohl(tvb, optoff);
|
|
proto_item_append_text(vti, " = %s",
|
|
((time_secs == 0xffffffff) ?
|
|
"infinity" :
|
|
time_secs_to_str(time_secs)));
|
|
break;
|
|
|
|
default:
|
|
proto_item_append_text(vti, " (%d bytes)", optlen);
|
|
break;
|
|
}
|
|
} else {
|
|
proto_tree_add_text(bp_tree, tvb, voff, consumed,
|
|
"Unknown Option Code: %d (%d bytes)", code, optlen);
|
|
}
|
|
|
|
return consumed;
|
|
}
|
|
|
|
static int
|
|
bootp_dhcp_decode_agent_info(proto_tree *v_tree, tvbuff_t *tvb, int optoff,
|
|
int optend)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt;
|
|
guint8 subopt_len;
|
|
|
|
subopt = tvb_get_guint8(tvb, optoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff+subopt_len >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
switch (subopt) {
|
|
case 1:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Agent Circuit ID: %s",
|
|
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
|
|
break;
|
|
case 2:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Agent Remote ID: %s",
|
|
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
|
|
break;
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Invalid agent suboption %d (%d bytes)",
|
|
subopt, subopt_len);
|
|
break;
|
|
}
|
|
optoff += (subopt_len + 2);
|
|
return optoff;
|
|
}
|
|
|
|
static int
|
|
dissect_vendor_pxeclient_suboption(proto_tree *v_tree, tvbuff_t *tvb,
|
|
int optoff, int optend)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt;
|
|
guint8 subopt_len;
|
|
int suboptleft;
|
|
proto_tree *o43pxeclient_v_tree;
|
|
proto_item *vti;
|
|
|
|
static struct opt_info o43pxeclient_opt[]= {
|
|
/* 0 */ {"nop", special, NULL}, /* dummy */
|
|
/* 1 */ {"PXE mtftp IP", ipv4_list, NULL},
|
|
/* 2 */ {"PXE mtftp client port", val_u_le_short, NULL},
|
|
/* 3 */ {"PXE mtftp server port",val_u_le_short, NULL},
|
|
/* 4 */ {"PXE mtftp timeout", val_u_byte, NULL},
|
|
/* 5 */ {"PXE mtftp delay", val_u_byte, NULL},
|
|
/* 6 */ {"PXE discovery control", val_u_byte, NULL},
|
|
/*
|
|
* Correct: b0 (lsb): disable broadcast discovery
|
|
* b1: disable multicast discovery
|
|
* b2: only use/accept servers in boot servers
|
|
* b3: download bootfile without prompt/menu/disc
|
|
*/
|
|
/* 7 */ {"PXE multicast address", ipv4_list, NULL},
|
|
/* 8 */ {"PXE boot servers", special, NULL},
|
|
/* 9 */ {"PXE boot menu", special, NULL},
|
|
/* 10 */ {"PXE menu prompt", special, NULL},
|
|
/* 11 */ {"PXE multicast address alloc", special, NULL},
|
|
/* 12 */ {"PXE credential types", special, NULL},
|
|
/* 71 {"PXE boot item", special, NULL}, */
|
|
/* 255 {"PXE end options", special, NULL} */
|
|
};
|
|
|
|
subopt = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (subopt == 0) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "Padding");
|
|
return (suboptoff);
|
|
} else if (subopt == 255) { /* End Option */
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "End PXEClient option");
|
|
/* Make sure we skip any junk left this option */
|
|
return (optend);
|
|
}
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff+subopt_len >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
if ( subopt == 71 ) { /* 71 {"PXE boot item", special} */
|
|
/* case special */
|
|
/* I may need to decode that properly one day */
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s (%d byte%s)" ,
|
|
subopt, "PXE boot item",
|
|
subopt_len, plurality(subopt_len, "", "s"));
|
|
} else if ((subopt < 1) || (subopt > array_length(o43pxeclient_opt))) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Unknown suboption %d (%d byte%s)", subopt, subopt_len,
|
|
plurality(subopt_len, "", "s"));
|
|
} else {
|
|
switch (o43pxeclient_opt[subopt].ftype) {
|
|
|
|
case special:
|
|
/* I may need to decode that properly one day */
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s (%d byte%s)",
|
|
subopt, o43pxeclient_opt[subopt].text,
|
|
subopt_len, plurality(subopt_len, "", "s"));
|
|
break;
|
|
|
|
case ipv4_list:
|
|
if (subopt_len == 4) {
|
|
/* one IP address */
|
|
proto_tree_add_text(v_tree, tvb, optoff, 6,
|
|
"Suboption %d : %s = %s",
|
|
subopt, o43pxeclient_opt[subopt].text,
|
|
ip_to_str(tvb_get_ptr(tvb, suboptoff, 4)));
|
|
} else {
|
|
/* > 1 IP addresses. Let's make a sub-tree */
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff,
|
|
subopt_len+2, "Suboption %d: %s",
|
|
subopt, o43pxeclient_opt[subopt].text);
|
|
o43pxeclient_v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (suboptleft = subopt_len; suboptleft > 0;
|
|
suboptoff += 4, suboptleft -= 4) {
|
|
if (suboptleft < 4) {
|
|
proto_tree_add_text(o43pxeclient_v_tree,
|
|
tvb, suboptoff, suboptleft,
|
|
"Suboption length isn't a multiple of 4");
|
|
break;
|
|
}
|
|
proto_tree_add_text(o43pxeclient_v_tree,
|
|
tvb, suboptoff, 4, "IP Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, suboptoff, 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* XXX case string:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s", subopt, o43pxeclient_opt[subopt].text);
|
|
break;
|
|
XXX */
|
|
|
|
case val_u_byte:
|
|
if (subopt_len != 1) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: suboption length isn't 1", subopt);
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 3, "Suboption %d: %s = %u",
|
|
subopt, o43pxeclient_opt[subopt].text,
|
|
tvb_get_guint8(tvb, suboptoff));
|
|
break;
|
|
|
|
case val_u_le_short:
|
|
if (subopt_len != 2) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: suboption length isn't 2", subopt);
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 4, "Suboption %d: %s = %u",
|
|
subopt, o43pxeclient_opt[subopt].text,
|
|
tvb_get_letohs(tvb, suboptoff));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,"ERROR, please report: Unknown subopt type handler %d", subopt);
|
|
break;
|
|
}
|
|
}
|
|
optoff += (subopt_len + 2);
|
|
return optoff;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_vendor_cablelabs_suboption(proto_tree *v_tree, tvbuff_t *tvb,
|
|
int optoff, int optend)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt, byte_val;
|
|
guint8 subopt_len;
|
|
|
|
static struct opt_info o43cablelabs_opt[]= {
|
|
/* 0 */ {"nop", special, NULL}, /* dummy */
|
|
/* 1 */ {"Suboption Request List", string, NULL},
|
|
/* 2 */ {"Device Type", string, NULL},
|
|
/* 3 */ {"eSAFE Types", string, NULL},
|
|
/* 4 */ {"Serial Number", string, NULL},
|
|
/* 5 */ {"Hardware Version", string, NULL},
|
|
/* 6 */ {"Software Version", string, NULL},
|
|
/* 7 */ {"Boot ROM version", string, NULL},
|
|
/* 8 */ {"Organizationally Unique Identifier", special, NULL},
|
|
/* 9 */ {"Model Number", string, NULL},
|
|
/* 10 */ {"Vendor Name", string, NULL},
|
|
/* *** 11-30: CableHome *** */
|
|
/* 11 */ {"Address Realm", special, NULL},
|
|
/* 12 */ {"CM/PS System Description", string, NULL},
|
|
/* 13 */ {"CM/PS Firmware Revision", string, NULL},
|
|
/* 14 */ {"Firewall Policy File Version", string, NULL},
|
|
/* 15 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 16 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 17 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 18 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 19 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 20 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 21 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 22 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 23 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 24 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 25 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 26 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 27 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 28 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 29 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* 30 */ {"Unassigned (CableHome)", special, NULL},
|
|
/* *** 31-50: PacketCable *** */
|
|
/* 31 */ {"MTA MAC Address", special, NULL},
|
|
/* 32 */ {"Correlation ID", string, NULL},
|
|
/* 33-50 {"Unassigned (PacketCable)", special, NULL}, */
|
|
/* *** 51-127: CableLabs *** */
|
|
/* 51-127 {"Unassigned (CableLabs)", special, NULL}, */
|
|
/* *** 128-254: Vendors *** */
|
|
/* 128-254 {"Unassigned (Vendors)", special, NULL}, */
|
|
/* 255 {"end options", special, NULL} */
|
|
};
|
|
|
|
static const value_string cablehome_subopt11_vals[] = {
|
|
{ 1, "PS WAN-Man" },
|
|
{ 2, "PS WAN-Data" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
subopt = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (subopt == 0) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "Padding");
|
|
return (suboptoff);
|
|
} else if (subopt == 255) { /* End Option */
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1, "End CableLabs option");
|
|
/* Make sure we skip any junk left this option */
|
|
return (optend);
|
|
}
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff+subopt_len >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
if ( (subopt < 1 ) || (subopt > array_length(o43cablelabs_opt)) ) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: Unassigned (%d byte%s)", subopt, subopt_len,
|
|
plurality(subopt_len, "", "s"));
|
|
} else {
|
|
switch (o43cablelabs_opt[subopt].ftype) {
|
|
|
|
case special:
|
|
if ( subopt == 8 ) { /* OUI */
|
|
if (subopt_len != 3) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: suboption length isn't 3", subopt);
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: OUI = %s",
|
|
subopt, bytes_to_str_punct(tvb_get_ptr(tvb, suboptoff, 3), 3, ':'));
|
|
} else if ( subopt == 11 ) { /* Address Realm */
|
|
if (subopt_len != 1) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: suboption length isn't 1", subopt);
|
|
break;
|
|
}
|
|
byte_val = tvb_get_guint8(tvb, suboptoff);
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s = %s (0x%02x)",
|
|
subopt, o43cablelabs_opt[subopt].text,
|
|
val_to_str(byte_val, cablehome_subopt11_vals, "Unknown"), byte_val);
|
|
} else if ( subopt == 31 ) { /* MTA MAC address */
|
|
if (subopt_len != 6) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: suboption length isn't 6", subopt);
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s = %s",
|
|
subopt, o43cablelabs_opt[subopt].text,
|
|
bytes_to_str_punct(tvb_get_ptr(tvb, suboptoff, 6), 6, ':'));
|
|
} else {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s (%d byte%s)" ,
|
|
subopt, o43cablelabs_opt[subopt].text,
|
|
subopt_len, plurality(subopt_len, "", "s"));
|
|
}
|
|
break;
|
|
|
|
case string:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s = \"%s\"", subopt,
|
|
o43cablelabs_opt[subopt].text,
|
|
tvb_format_stringzpad(tvb, optoff, subopt_len));
|
|
break;
|
|
|
|
case bytes:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
|
|
"Suboption %d: %s = 0x%s", subopt,
|
|
o43cablelabs_opt[subopt].text,
|
|
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,"ERROR, please report: Unknown subopt type handler %d", subopt);
|
|
break;
|
|
}
|
|
}
|
|
optoff += (subopt_len + 2);
|
|
return optoff;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
dissect_netware_ip_suboption(proto_tree *v_tree, tvbuff_t *tvb,
|
|
int optoff, int optend)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt;
|
|
guint8 subopt_len;
|
|
int suboptleft;
|
|
const struct true_false_string *tfs;
|
|
int i;
|
|
proto_tree *o63_v_tree;
|
|
proto_item *vti;
|
|
|
|
static struct opt_info o63_opt[]= {
|
|
/* 0 */ {"",none,NULL},
|
|
/* 1 */ {"NWIP does not exist on subnet",presence,NULL},
|
|
/* 2 */ {"NWIP exist in options area",presence,NULL},
|
|
/* 3 */ {"NWIP exists in sname/file",presence,NULL},
|
|
/* 4 */ {"NWIP exists,but too big",presence,NULL},
|
|
/* 5 */ {"Broadcast for nearest Netware server",val_boolean,TFS(&yes_no_tfs)},
|
|
/* 6 */ {"Preferred DSS server",ipv4_list,NULL},
|
|
/* 7 */ {"Nearest NWIP server",ipv4_list,NULL},
|
|
/* 8 */ {"Autoretries",val_u_byte,NULL},
|
|
/* 9 */ {"Autoretry delay,secs",val_u_byte,NULL},
|
|
/* 10*/ {"Support NetWare/IP v1.1",val_boolean,TFS(&yes_no_tfs)},
|
|
/* 11*/ {"Primary DSS",ipv4,NULL}
|
|
};
|
|
|
|
subopt = tvb_get_guint8(tvb, optoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (subopt > array_length(o63_opt)) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, "Unknown suboption %d", subopt);
|
|
} else {
|
|
switch (o63_opt[subopt].ftype) {
|
|
|
|
case presence:
|
|
if (subopt_len != 0) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Suboption %d: length isn't 0", subopt);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 2, "Suboption %d: %s", subopt, o63_opt[subopt].text);
|
|
break;
|
|
|
|
case ipv4:
|
|
if (subopt_len != 4) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Suboption %d: length isn't 4", subopt);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
if (suboptoff+4 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 6,
|
|
"Suboption %d: %s = %s" ,
|
|
subopt, o63_opt[subopt].text,
|
|
ip_to_str(tvb_get_ptr(tvb, suboptoff, 4)));
|
|
suboptoff += 6;
|
|
break;
|
|
|
|
case ipv4_list:
|
|
if (subopt_len == 4) {
|
|
/* one IP address */
|
|
proto_tree_add_text(v_tree, tvb, optoff, 6,
|
|
"Suboption %d : %s = %s",
|
|
subopt, o63_opt[subopt].text,
|
|
ip_to_str(tvb_get_ptr(tvb, suboptoff, 4)));
|
|
suboptoff += 4;
|
|
} else {
|
|
/* > 1 IP addresses. Let's make a sub-tree */
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff,
|
|
subopt_len+2, "Suboption %d: %s",
|
|
subopt, o63_opt[subopt].text);
|
|
o63_v_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (suboptleft = subopt_len; suboptleft > 0;
|
|
suboptoff += 4, suboptleft -= 4) {
|
|
if (suboptleft < 4) {
|
|
proto_tree_add_text(o63_v_tree,
|
|
tvb, suboptoff, suboptleft,
|
|
"Suboption length isn't a multiple of 4");
|
|
suboptoff += suboptleft;
|
|
break;
|
|
}
|
|
proto_tree_add_text(o63_v_tree, tvb, suboptoff, 4, "IP Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, suboptoff, 4)));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case val_boolean:
|
|
if (subopt_len != 1) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Suboption %d: length isn't 1", subopt);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
tfs = (const struct true_false_string *) o63_opt[subopt].data;
|
|
i = tvb_get_guint8(tvb, suboptoff);
|
|
if (i != 0 && i != 1) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 3,
|
|
"Subption %d: %s = Invalid Value %d",
|
|
subopt, o63_opt[subopt].text, i);
|
|
} else {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 3,
|
|
"Subption %d: %s = %s", subopt,
|
|
o63_opt[subopt].text,
|
|
i == 0 ? tfs->false_string : tfs->true_string);
|
|
}
|
|
suboptoff += 3;
|
|
break;
|
|
|
|
case val_u_byte:
|
|
if (subopt_len != 1) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
|
|
"Suboption %d: length isn't 1", subopt);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, optoff, 3, "Suboption %d: %s = %u",
|
|
subopt, o63_opt[subopt].text,
|
|
tvb_get_guint8(tvb, suboptoff));
|
|
suboptoff += 1;
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,"Unknown suboption %d", subopt);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
}
|
|
return suboptoff;
|
|
}
|
|
|
|
|
|
/* PacketCable Multimedia Terminal Adapter device capabilities (option 60).
|
|
Ref: PKT-SP-I05-021127 sections 8.2 and 10 */
|
|
|
|
#define PKT_MDC_TLV_OFF 10
|
|
|
|
|
|
/* These are ASCII-encoded hexadecimal digits. We use the raw hex equivalent for
|
|
convenience. */
|
|
#define PKT_MDC_VERSION 0x3031 /* "01" */
|
|
#define PKT_MDC_TEL_END 0x3032 /* "02" */
|
|
#define PKT_MDC_TGT 0x3033 /* "03" */
|
|
#define PKT_MDC_HTTP_ACC 0x3034 /* "04" */
|
|
#define PKT_MDC_SYSLOG 0x3035 /* "05" */
|
|
#define PKT_MDC_NCS 0x3036 /* "06" */
|
|
#define PKT_MDC_PRI_LINE 0x3037 /* "07" */
|
|
#define PKT_MDC_VENDOR_TLV 0x3038 /* "08" */
|
|
#define PKT_MDC_NVRAM_STOR 0x3039 /* "09" */
|
|
#define PKT_MDC_PROV_REP 0x3041 /* "0A" */
|
|
#define PKT_MDC_PROV_REP_LC 0x3061 /* "0A" */
|
|
#define PKT_MDC_SUPP_CODECS 0x3042 /* "0B" */
|
|
#define PKT_MDC_SUPP_CODECS_LC 0x3062 /* "0b" */
|
|
#define PKT_MDC_SILENCE 0x3043 /* "0C" */
|
|
#define PKT_MDC_SILENCE_LC 0x3063 /* "0c" */
|
|
#define PKT_MDC_ECHO_CANCEL 0x3044 /* "0D" */
|
|
#define PKT_MDC_ECHO_CANCEL_LC 0x3064 /* "0d" */
|
|
#define PKT_MDC_RSVP 0x3045 /* "0E" */
|
|
#define PKT_MDC_RSVP_LC 0x3065 /* "0e" */
|
|
#define PKT_MDC_UGS_AD 0x3046 /* "0F" */
|
|
#define PKT_MDC_UGS_AD_LC 0x3066 /* "0f" */
|
|
#define PKT_MDC_IF_INDEX 0x3130 /* "10" */
|
|
#define PKT_MDC_FLOW_LOG 0x3131 /* "11" */
|
|
#define PKT_MDC_PROV_FLOWS 0x3132 /* "12" */
|
|
/* PacketCable 1.5: */
|
|
#define PKT_MDC_T38_VERSION 0x3133 /* "13" */
|
|
#define PKT_MDC_T38_EC 0x3134 /* "14" */
|
|
#define PKT_MDC_RFC2833_DTMF 0x3135 /* "15" */
|
|
#define PKT_MDC_VOICE_METRICS 0x3136 /* "16" */
|
|
#define PKT_MDC_MIBS 0x3137 /* "17" */
|
|
#define PKT_MDC_MGPI 0x3138 /* "18" */
|
|
|
|
static const value_string pkt_mdc_type_vals[] = {
|
|
{ PKT_MDC_VERSION, "PacketCable Version" },
|
|
{ PKT_MDC_TEL_END, "Number Of Telephony Endpoints" },
|
|
{ PKT_MDC_TGT, "TGT Support" },
|
|
{ PKT_MDC_HTTP_ACC, "HTTP Download File Access Method Support" },
|
|
{ PKT_MDC_SYSLOG, "MTA-24 Event SYSLOG Notification Support" },
|
|
{ PKT_MDC_NCS, "NCS Service Flow Support" },
|
|
{ PKT_MDC_PRI_LINE, "Primary Line Support" },
|
|
{ PKT_MDC_VENDOR_TLV, "Vendor Specific TLV Type(s)" },
|
|
{ PKT_MDC_NVRAM_STOR, "NVRAM Ticket/Session Keys Storage Support" },
|
|
{ PKT_MDC_PROV_REP, "Provisioning Event Reporting Support" },
|
|
{ PKT_MDC_PROV_REP_LC, "Provisioning Event Reporting Support" },
|
|
{ PKT_MDC_SUPP_CODECS, "Supported CODEC(s)" },
|
|
{ PKT_MDC_SUPP_CODECS_LC, "Supported CODEC(s)" },
|
|
{ PKT_MDC_SILENCE, "Silence Suppression Support" },
|
|
{ PKT_MDC_SILENCE_LC, "Silence Suppression Support" },
|
|
{ PKT_MDC_ECHO_CANCEL, "Echo Cancellation Support" },
|
|
{ PKT_MDC_ECHO_CANCEL_LC, "Echo Cancellation Support" },
|
|
{ PKT_MDC_RSVP, "RSVP Support/ Reserved" },
|
|
{ PKT_MDC_RSVP_LC, "RSVP Support/ Reserved" },
|
|
{ PKT_MDC_UGS_AD, "UGS-AD Support" },
|
|
{ PKT_MDC_UGS_AD_LC, "UGS-AD Support" },
|
|
{ PKT_MDC_IF_INDEX, "MTA's \"ifIndex\" starting number in \"ifTable\"" },
|
|
{ PKT_MDC_FLOW_LOG, "Provisioning Flow Logging Support" },
|
|
{ PKT_MDC_PROV_FLOWS, "Supported Provisioning Flows" },
|
|
/* PacketCable 1.5: */
|
|
{ PKT_MDC_T38_VERSION, "T38 Version Support" },
|
|
{ PKT_MDC_T38_EC, "T38 Error Correction Support" },
|
|
{ PKT_MDC_RFC2833_DTMF, "RFC 2833 DTMF Support" },
|
|
{ PKT_MDC_VOICE_METRICS, "Voice Metrics Support" },
|
|
{ PKT_MDC_MIBS, "MIB Support" },
|
|
{ PKT_MDC_MGPI, "Multiple Grants Per Interval Support" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_version_vals[] = {
|
|
{ 0x3030, "PacketCable 1.0" },
|
|
{ 0x3031, "PacketCable 1.1/1.5" }, /* 1.5 replaces 1.1-1.3 */
|
|
{ 0x3032, "PacketCable 1.2" },
|
|
{ 0x3033, "PacketCable 1.3" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_boolean_vals[] = {
|
|
{ 0x3030, "No" },
|
|
{ 0x3031, "Yes" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_codec_vals[] = {
|
|
{ 0x3031, "other" }, /* "01" */
|
|
{ 0x3032, "unknown" },
|
|
{ 0x3033, "G.729" },
|
|
{ 0x3034, "reserved" },
|
|
{ 0x3035, "G.729E" },
|
|
{ 0x3036, "PCMU" },
|
|
{ 0x3037, "G.726-32" },
|
|
{ 0x3038, "G.728" },
|
|
{ 0x3039, "PCMA" }, /* "09" */
|
|
{ 0x3041, "G.726-16" }, /* "0A" */
|
|
{ 0x3042, "G.726-24" },
|
|
{ 0x3043, "G.726-40" },
|
|
{ 0x3044, "iLBC" },
|
|
{ 0x3045, "BV16" },
|
|
{ 0x3046, "telephone-event" }, /* "0F" */
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_t38_version_vals[] = {
|
|
{ 0x3030, "Unsupported" },
|
|
{ 0x3031, "T.38 Version Zero" }, /* default */
|
|
{ 0x3032, "T.38 Version One" },
|
|
{ 0x3033, "T.38 Version Two" },
|
|
{ 0x3035, "T.38 Version Three" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_t38_ec_vals[] = {
|
|
{ 0x3030, "None" },
|
|
{ 0x3031, "Redundancy" }, /* default */
|
|
{ 0x3032, "FEC" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_mdc_mibs_vals[] = {
|
|
{ 0x3030, "PacketCable 1.0" },
|
|
{ 0x3031, "PacketCable 1.5" },
|
|
{ 0x3032, "Reserved" },
|
|
{ 0x3033, "Reserved" },
|
|
{ 0x3034, "Reserved" },
|
|
{ 0x3035, "IETF" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* DOCSIS Cable Modem device capabilities (option 60). */
|
|
/* XXX we should rename all PKT_CM_* variables to DOCSIS_CM_* */
|
|
#define PKT_CM_TLV_OFF 12
|
|
|
|
#define PKT_CM_CONCAT_SUP 0x3031 /* "01" */
|
|
#define PKT_CM_DOCSIS_VER 0x3032 /* "02" */
|
|
#define PKT_CM_FRAG_SUP 0x3033 /* "03" */
|
|
#define PKT_CM_PHS_SUP 0x3034 /* "04" */
|
|
#define PKT_CM_IGMP_SUP 0x3035 /* "05" */
|
|
#define PKT_CM_PRIV_SUP 0x3036 /* "06" */
|
|
#define PKT_CM_DSAID_SUP 0x3037 /* "07" */
|
|
#define PKT_CM_USID_SUP 0x3038 /* "08" */
|
|
#define PKT_CM_FILT_SUP 0x3039 /* "09" */
|
|
#define PKT_CM_TET_MI 0x3041 /* "0A" */
|
|
#define PKT_CM_TET_MI_LC 0x3061 /* "0a" */
|
|
#define PKT_CM_TET 0x3042 /* "0B" */
|
|
#define PKT_CM_TET_LC 0x3062 /* "0b" */
|
|
#define PKT_CM_DCC_SUP 0x3043 /* "0C" */
|
|
#define PKT_CM_DCC_SUP_LC 0x3063 /* "0c" */
|
|
|
|
static const value_string pkt_cm_type_vals[] = {
|
|
{ PKT_CM_CONCAT_SUP, "Concatenation Support" },
|
|
{ PKT_CM_DOCSIS_VER, "DOCSIS Version" },
|
|
{ PKT_CM_FRAG_SUP, "Fragmentation Support" },
|
|
{ PKT_CM_PHS_SUP, "PHS Support" },
|
|
{ PKT_CM_IGMP_SUP, "IGMP Support" },
|
|
{ PKT_CM_PRIV_SUP, "Privacy Support" },
|
|
{ PKT_CM_DSAID_SUP, "Downstream SAID Support" },
|
|
{ PKT_CM_USID_SUP, "Upstream SID Support" },
|
|
{ PKT_CM_FILT_SUP, "Optional Filtering Support" },
|
|
{ PKT_CM_TET_MI, "Transmit Equalizer Taps per Modulation Interval" },
|
|
{ PKT_CM_TET_MI_LC, "Transmit Equalizer Taps per Modulation Interval" },
|
|
{ PKT_CM_TET, "Number of Transmit Equalizer Taps" },
|
|
{ PKT_CM_TET_LC, "Number of Transmit Equalizer Taps" },
|
|
{ PKT_CM_DCC_SUP, "DCC Support" },
|
|
{ PKT_CM_DCC_SUP_LC, "DCC Support" }
|
|
};
|
|
|
|
static const value_string pkt_cm_version_vals[] = {
|
|
{ 0x3030, "DOCSIS 1.0" },
|
|
{ 0x3031, "DOCSIS 1.1" },
|
|
{ 0x3032, "DOCSIS 2.0" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string pkt_cm_privacy_vals[] = {
|
|
{ 0x3030, "BPI Support" },
|
|
{ 0x3031, "BPI Plus Support" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
|
|
static const value_string pkt_mdc_supp_flow_vals[] = {
|
|
{ 1 << 0, "Secure Flow (Full Secure Provisioning Flow)" },
|
|
{ 1 << 1, "Hybrid Flow" },
|
|
{ 1 << 2, "Basic Flow" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
|
|
static void
|
|
dissect_packetcable_mta_cap(proto_tree *v_tree, tvbuff_t *tvb, int voff, int len)
|
|
{
|
|
guint16 raw_val;
|
|
unsigned long flow_val = 0;
|
|
guint off = PKT_MDC_TLV_OFF + voff;
|
|
guint tlv_len, i;
|
|
guint8 asc_val[3] = " ", flow_val_str[5];
|
|
static GString *tlv_str = NULL;
|
|
char bit_fld[64];
|
|
proto_item *ti;
|
|
proto_tree *subtree;
|
|
|
|
if (! tlv_str)
|
|
tlv_str = g_string_new("");
|
|
|
|
tvb_memcpy (tvb, asc_val, off, 2);
|
|
if (sscanf(asc_val, "%x", &tlv_len) != 1) {
|
|
proto_tree_add_text(v_tree, tvb, off, len - off,
|
|
"Bogus length: %s", asc_val);
|
|
return;
|
|
} else {
|
|
proto_tree_add_uint_format(v_tree, hf_bootp_pkt_mtacap_len, tvb, off, 2,
|
|
tlv_len, "MTA DC Length: %d", tlv_len);
|
|
off += 2;
|
|
|
|
while ((int) off - voff < len) {
|
|
/* Type */
|
|
raw_val = tvb_get_ntohs (tvb, off);
|
|
g_string_sprintf(tlv_str, "0x%.2s: %s = ",
|
|
tvb_get_ptr(tvb, off, 2),
|
|
val_to_str(raw_val, pkt_mdc_type_vals, "unknown"));
|
|
|
|
/* Length */
|
|
tvb_memcpy(tvb, asc_val, off + 2, 2);
|
|
if (sscanf(asc_val, "%x", &tlv_len) != 1) {
|
|
proto_tree_add_text(v_tree, tvb, off, len - off,
|
|
"[Bogus length: %s]", asc_val);
|
|
return;
|
|
} else {
|
|
/* Value(s) */
|
|
/*g_string_sprintfa(tlv_str, "Length: %d, Value: ", tlv_len);*/
|
|
|
|
switch (raw_val) {
|
|
case PKT_MDC_VERSION:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_mdc_version_vals, "Reserved"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_TEL_END:
|
|
case PKT_MDC_IF_INDEX:
|
|
g_string_sprintfa(tlv_str, "%.2s",
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_TGT:
|
|
case PKT_MDC_HTTP_ACC:
|
|
case PKT_MDC_SYSLOG:
|
|
case PKT_MDC_NCS:
|
|
case PKT_MDC_PRI_LINE:
|
|
case PKT_MDC_NVRAM_STOR:
|
|
case PKT_MDC_PROV_REP:
|
|
case PKT_MDC_PROV_REP_LC:
|
|
case PKT_MDC_SILENCE:
|
|
case PKT_MDC_SILENCE_LC:
|
|
case PKT_MDC_ECHO_CANCEL:
|
|
case PKT_MDC_ECHO_CANCEL_LC:
|
|
case PKT_MDC_RSVP:
|
|
case PKT_MDC_RSVP_LC:
|
|
case PKT_MDC_UGS_AD:
|
|
case PKT_MDC_UGS_AD_LC:
|
|
case PKT_MDC_FLOW_LOG:
|
|
case PKT_MDC_RFC2833_DTMF:
|
|
case PKT_MDC_VOICE_METRICS:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_mdc_boolean_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_SUPP_CODECS:
|
|
case PKT_MDC_SUPP_CODECS_LC:
|
|
for (i = 0; i < tlv_len; i++) {
|
|
raw_val = tvb_get_ntohs(tvb, off + 4 + (i * 2) );
|
|
g_string_sprintfa(tlv_str, "%s%s (%.2s)",
|
|
plurality(i + 1, "", ", "),
|
|
val_to_str(raw_val, pkt_mdc_codec_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4 + (i * 2), 2) );
|
|
}
|
|
break;
|
|
case PKT_MDC_PROV_FLOWS:
|
|
tvb_memcpy(tvb, flow_val_str, off + 4, 4);
|
|
flow_val_str[4] = '\0';
|
|
flow_val = strtoul(flow_val_str, NULL, 16);
|
|
g_string_sprintfa(tlv_str, "0x%04lx", flow_val);
|
|
break;
|
|
case PKT_MDC_T38_VERSION:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_mdc_t38_version_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_T38_EC:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_mdc_t38_ec_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_MIBS:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_mdc_mibs_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_MDC_VENDOR_TLV:
|
|
default:
|
|
g_string_sprintfa(tlv_str, "%s",
|
|
tvb_format_stringzpad(tvb, off + 4, tlv_len * 2) );
|
|
break;
|
|
}
|
|
}
|
|
ti = proto_tree_add_text(v_tree, tvb, off, (tlv_len * 2) + 4, tlv_str->str);
|
|
subtree = proto_item_add_subtree(ti, ett_bootp_option);
|
|
if (raw_val == PKT_MDC_PROV_FLOWS) {
|
|
for (i = 0 ; i < 3; i++) {
|
|
if (flow_val & pkt_mdc_supp_flow_vals[i].value) {
|
|
decode_bitfield_value(bit_fld, flow_val, pkt_mdc_supp_flow_vals[i].value, 16);
|
|
proto_tree_add_text(ti, tvb, off + 4, 4, "%s%s",
|
|
bit_fld, pkt_mdc_supp_flow_vals[i].strptr);
|
|
}
|
|
}
|
|
}
|
|
off += (tlv_len * 2) + 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_docsis_cm_cap(proto_tree *v_tree, tvbuff_t *tvb, int voff, int len)
|
|
{
|
|
unsigned long raw_val;
|
|
guint off = PKT_CM_TLV_OFF + voff;
|
|
guint tlv_len, i;
|
|
guint8 asc_val[3] = " ";
|
|
static GString *tlv_str = NULL;
|
|
|
|
if (! tlv_str)
|
|
tlv_str = g_string_new("");
|
|
|
|
tvb_memcpy (tvb, asc_val, off, 2);
|
|
if (sscanf(asc_val, "%x", &tlv_len) != 1) {
|
|
proto_tree_add_text(v_tree, tvb, off, len - off,
|
|
"Bogus length: %s", asc_val);
|
|
return;
|
|
} else {
|
|
proto_tree_add_uint_format(v_tree, hf_bootp_docsis_cmcap_len, tvb, off, 2,
|
|
tlv_len, "CM DC Length: %d", tlv_len);
|
|
off += 2;
|
|
|
|
while ((int) off - voff < len) {
|
|
/* Type */
|
|
raw_val = tvb_get_ntohs (tvb, off);
|
|
g_string_sprintf(tlv_str, "0x%.2s: %s = ",
|
|
tvb_get_ptr(tvb, off, 2),
|
|
val_to_str(raw_val, pkt_cm_type_vals, "unknown"));
|
|
|
|
/* Length */
|
|
tvb_memcpy(tvb, asc_val, off + 2, 2);
|
|
if (sscanf(asc_val, "%x", &tlv_len) != 1) {
|
|
proto_tree_add_text(v_tree, tvb, off, len - off,
|
|
"[Bogus length: %s]", asc_val);
|
|
return;
|
|
} else {
|
|
/* Value(s) */
|
|
/*g_string_sprintfa(tlv_str, "Length: %d, Value%s: ", tlv_len,
|
|
plurality(tlv_len, "", "s") );*/
|
|
|
|
switch (raw_val) {
|
|
case PKT_CM_CONCAT_SUP:
|
|
case PKT_CM_FRAG_SUP:
|
|
case PKT_CM_PHS_SUP:
|
|
case PKT_CM_IGMP_SUP:
|
|
case PKT_CM_DCC_SUP:
|
|
case PKT_CM_DCC_SUP_LC:
|
|
for (i = 0; i < tlv_len; i++) {
|
|
raw_val = tvb_get_ntohs(tvb, off + 4 + (i * 2) );
|
|
g_string_sprintfa(tlv_str, "%s%s (%.2s)",
|
|
plurality(i + 1, "", ", "),
|
|
val_to_str(raw_val, pkt_mdc_boolean_vals, "unknown"),
|
|
tvb_get_ptr(tvb, off + 4 + (i * 2), 2) );
|
|
}
|
|
break;
|
|
case PKT_CM_DOCSIS_VER:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_cm_version_vals, "Reserved"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_CM_PRIV_SUP:
|
|
raw_val = tvb_get_ntohs(tvb, off + 4);
|
|
g_string_sprintfa(tlv_str, "%s (%.2s)",
|
|
val_to_str(raw_val, pkt_cm_privacy_vals, "Reserved"),
|
|
tvb_get_ptr(tvb, off + 4, 2) );
|
|
break;
|
|
case PKT_CM_DSAID_SUP:
|
|
case PKT_CM_USID_SUP:
|
|
case PKT_CM_TET_MI:
|
|
case PKT_CM_TET_MI_LC:
|
|
case PKT_CM_TET:
|
|
case PKT_CM_TET_LC:
|
|
tvb_memcpy (tvb, asc_val, off + 4, 2);
|
|
raw_val = strtoul(asc_val, NULL, 16);
|
|
g_string_sprintfa(tlv_str, "%lu", raw_val);
|
|
break;
|
|
case PKT_CM_FILT_SUP:
|
|
tvb_memcpy (tvb, asc_val, off + 4, 2);
|
|
raw_val = strtoul(asc_val, NULL, 16);
|
|
if (raw_val & 0x01)
|
|
g_string_append(tlv_str, "802.1P filtering");
|
|
if (raw_val & 0x02) {
|
|
if (raw_val & 0x01)
|
|
g_string_append(tlv_str, ", ");
|
|
g_string_append(tlv_str, "802.1Q filtering");
|
|
}
|
|
if (! raw_val & 0x03)
|
|
g_string_append(tlv_str, "None");
|
|
g_string_sprintfa(tlv_str, " (0x%02lx)", raw_val);
|
|
break;
|
|
}
|
|
}
|
|
proto_tree_add_text(v_tree, tvb, off, (tlv_len * 2) + 4, tlv_str->str);
|
|
off += (tlv_len * 2) + 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Definitions specific to PKT-SP-PROV-I05-021127 begin with "PKT_CCC_I05".
|
|
Definitions specific to IETF draft 5 and RFC 3495 begin with "PKT_CCC_IETF".
|
|
Shared definitions begin with "PKT_CCC".
|
|
*/
|
|
#define PKT_CCC_PRI_DHCP 1
|
|
#define PKT_CCC_SEC_DHCP 2
|
|
#define PKT_CCC_I05_SNMP 3
|
|
#define PKT_CCC_IETF_PROV_SRV 3
|
|
#define PKT_CCC_I05_PRI_DNS 4
|
|
#define PKT_CCC_IETF_AS_KRB 4
|
|
#define PKT_CCC_I05_SEC_DNS 5
|
|
#define PKT_CCC_IETF_AP_KRB 5
|
|
#define PKT_CCC_KRB_REALM 6
|
|
#define PKT_CCC_TGT_FLAG 7
|
|
#define PKT_CCC_PROV_TIMER 8
|
|
#define PKT_CCC_CMS_FQDN 9
|
|
#define PKT_CCC_IETF_SEC_TKT 9
|
|
#define PKT_CCC_AS_KRB 10
|
|
#define PKT_CCC_AP_KRB 11
|
|
#define PKT_CCC_MTA_KRB_CLEAR 12
|
|
|
|
static const value_string pkt_i05_ccc_opt_vals[] = {
|
|
{ PKT_CCC_PRI_DHCP, "Primary DHCP Server" },
|
|
{ PKT_CCC_SEC_DHCP, "Secondary DHCP Server" },
|
|
{ PKT_CCC_I05_SNMP, "SNMP Entity" },
|
|
{ PKT_CCC_I05_PRI_DNS, "Primary DNS Server" },
|
|
{ PKT_CCC_I05_SEC_DNS, "Secondary DNS Server" },
|
|
{ PKT_CCC_KRB_REALM, "Kerberos Realm" },
|
|
{ PKT_CCC_TGT_FLAG, "MTA should fetch TGT?" },
|
|
{ PKT_CCC_PROV_TIMER, "Provisioning Timer" },
|
|
{ PKT_CCC_CMS_FQDN, "CMS FQDN" },
|
|
{ PKT_CCC_AS_KRB, "AS-REQ/AS-REP Backoff and Retry" },
|
|
{ PKT_CCC_AP_KRB, "AP-REQ/AP-REP Backoff and Retry" },
|
|
{ PKT_CCC_MTA_KRB_CLEAR, "MTA should clear Kerberos tickets?" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string pkt_draft5_ccc_opt_vals[] = {
|
|
{ PKT_CCC_PRI_DHCP, "TSP's Primary DHCP Server" },
|
|
{ PKT_CCC_SEC_DHCP, "TSP's Secondary DHCP Server" },
|
|
{ PKT_CCC_IETF_PROV_SRV, "TSP's Provisioning Server" },
|
|
{ PKT_CCC_IETF_AS_KRB, "TSP's AS-REQ/AS-REP Backoff and Retry" },
|
|
{ PKT_CCC_IETF_AP_KRB, "TSP's AP-REQ/AP-REP Backoff and Retry" },
|
|
{ PKT_CCC_KRB_REALM, "TSP's Kerberos Realm Name" },
|
|
{ PKT_CCC_TGT_FLAG, "TSP's Ticket Granting Server Utilization" },
|
|
{ PKT_CCC_PROV_TIMER, "TSP's Provisioning Timer Value" },
|
|
{ PKT_CCC_IETF_SEC_TKT, "PacketCable Security Ticket Control" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string pkt_i05_ccc_ticket_ctl_vals[] = {
|
|
{ 1, "Invalidate Provisioning Application Server's ticket" },
|
|
{ 2, "Invalidate all CMS Application Server tickets" },
|
|
{ 3, "Invalidate all Application Server tickets" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static int
|
|
dissect_packetcable_i05_ccc(proto_tree *v_tree, tvbuff_t *tvb, int optoff,
|
|
int optend)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt, subopt_len, fetch_tgt, timer_val, ticket_ctl;
|
|
proto_tree *pkt_s_tree;
|
|
proto_item *vti;
|
|
static GString *opt_str = NULL;
|
|
|
|
if (! opt_str)
|
|
opt_str = g_string_new("");
|
|
|
|
subopt = tvb_get_guint8(tvb, optoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, optoff);
|
|
suboptoff++;
|
|
|
|
g_string_sprintf(opt_str, "Suboption %u: %s: ", subopt,
|
|
val_to_str(subopt, pkt_i05_ccc_opt_vals, "unknown/reserved") );
|
|
|
|
switch (subopt) {
|
|
case PKT_CCC_PRI_DHCP: /* String values */
|
|
case PKT_CCC_SEC_DHCP:
|
|
case PKT_CCC_I05_SNMP:
|
|
case PKT_CCC_I05_PRI_DNS:
|
|
case PKT_CCC_I05_SEC_DNS:
|
|
case PKT_CCC_KRB_REALM:
|
|
case PKT_CCC_CMS_FQDN:
|
|
g_string_sprintfa(opt_str, "%s (%u byte%s)",
|
|
tvb_format_stringzpad(tvb, suboptoff, subopt_len),
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s") );
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_TGT_FLAG:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
fetch_tgt = tvb_get_guint8(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "%s (%u byte%s%s)",
|
|
fetch_tgt ? "Yes" : "No",
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 1 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_PROV_TIMER:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
timer_val = tvb_get_guint8(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "%u%s (%u byte%s%s)", timer_val,
|
|
timer_val > 30 ? " [Invalid]" : "",
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 1 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_AS_KRB:
|
|
if (suboptoff+12 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
g_string_sprintfa(opt_str, "(%u byte%s%s)", subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 12 ? " [Invalid]" : "");
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
if (subopt_len == 12) {
|
|
pkt_s_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyNomTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 4, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyMaxTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 4));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 8, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyMaxRetries: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 8));
|
|
}
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_AP_KRB:
|
|
if (suboptoff+12 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
g_string_sprintfa(opt_str, "(%u byte%s%s)", subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 12 ? " [Invalid]" : "");
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
if (subopt_len == 12) {
|
|
pkt_s_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyNomTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 4, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyMaxTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 4));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 8, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyMaxRetries: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 8));
|
|
}
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_MTA_KRB_CLEAR:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
ticket_ctl = tvb_get_guint8(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "%s (%u) (%u byte%s%s)",
|
|
val_to_str (ticket_ctl, pkt_i05_ccc_ticket_ctl_vals, "unknown/invalid"),
|
|
ticket_ctl,
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 1 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
}
|
|
return suboptoff;
|
|
}
|
|
|
|
|
|
static const value_string sec_tcm_vals[] = {
|
|
{ 1 << 0, "PacketCable Provisioning Server" },
|
|
{ 1 << 1, "All PacketCable Call Management Servers" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_packetcable_ietf_ccc(proto_tree *v_tree, tvbuff_t *tvb, int optoff,
|
|
int optend, int revision)
|
|
{
|
|
int suboptoff = optoff;
|
|
guint8 subopt, subopt_len, ipv4_addr[4];
|
|
guint8 prov_type, fetch_tgt, timer_val;
|
|
guint16 sec_tcm;
|
|
proto_tree *pkt_s_tree;
|
|
proto_item *vti;
|
|
static GString *opt_str = NULL;
|
|
int max_timer_val = 255, i;
|
|
char dns_name[255], bit_fld[24];
|
|
|
|
if (! opt_str)
|
|
opt_str = g_string_new("");
|
|
|
|
subopt = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
if (suboptoff >= optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, 1,
|
|
"Suboption %d: no room left in option for suboption length",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
subopt_len = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff++;
|
|
|
|
g_string_sprintf(opt_str, "Suboption %u: %s: ", subopt,
|
|
val_to_str(subopt, pkt_draft5_ccc_opt_vals, "unknown/reserved") );
|
|
|
|
switch (subopt) {
|
|
case PKT_CCC_PRI_DHCP: /* IPv4 values */
|
|
case PKT_CCC_SEC_DHCP:
|
|
if (suboptoff+4 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
tvb_memcpy(tvb, ipv4_addr, suboptoff, 4);
|
|
g_string_sprintfa(opt_str, "%u.%u.%u.%u (%u byte%s%s)",
|
|
ipv4_addr[0], ipv4_addr[1], ipv4_addr[2], ipv4_addr[3],
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 4 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_IETF_PROV_SRV:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
prov_type = tvb_get_guint8(tvb, suboptoff);
|
|
suboptoff += 1;
|
|
switch (prov_type) {
|
|
case 0:
|
|
/* XXX - check suboption length */
|
|
get_dns_name(tvb, optoff, suboptoff, dns_name,
|
|
sizeof(dns_name));
|
|
g_string_sprintfa(opt_str, "%s (%u byte%s)", dns_name,
|
|
subopt_len - 1, plurality(subopt_len, "", "s") );
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
break;
|
|
case 1:
|
|
if (suboptoff+4 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
tvb_memcpy(tvb, ipv4_addr, suboptoff, 4);
|
|
g_string_sprintfa(opt_str, "%u.%u.%u.%u (%u byte%s%s)",
|
|
ipv4_addr[0], ipv4_addr[1], ipv4_addr[2], ipv4_addr[3],
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 5 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
break;
|
|
default:
|
|
g_string_sprintfa(opt_str, "Invalid type: %u (%u byte%s)",
|
|
prov_type,
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s") );
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
break;
|
|
}
|
|
suboptoff += subopt_len - 1;
|
|
break;
|
|
|
|
case PKT_CCC_IETF_AS_KRB:
|
|
if (suboptoff+12 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
g_string_sprintfa(opt_str, "(%u byte%s%s)", subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 12 ? " [Invalid]" : "");
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
if (subopt_len == 12) {
|
|
pkt_s_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyNomTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 4, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyMaxTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 4));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 8, 4,
|
|
"pktcMtaDevRealmUnsolicitedKeyMaxRetries: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 8));
|
|
}
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_IETF_AP_KRB:
|
|
g_string_sprintfa(opt_str, "(%u byte%s%s)", subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 12 ? " [Invalid]" : "");
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
if (subopt_len == 12) {
|
|
pkt_s_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyNomTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 4, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyMaxTimeout: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 4));
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff + 8, 4,
|
|
"pktcMtaDevProvUnsolicitedKeyMaxRetries: %u",
|
|
tvb_get_ntohl(tvb, suboptoff + 8));
|
|
}
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_KRB_REALM: /* String values */
|
|
/* XXX - check suboption length */
|
|
get_dns_name(tvb, optoff, suboptoff, dns_name, sizeof(dns_name));
|
|
g_string_sprintfa(opt_str, "%s (%u byte%s)", dns_name,
|
|
subopt_len, plurality(subopt_len, "", "s") );
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
case PKT_CCC_TGT_FLAG:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
fetch_tgt = tvb_get_guint8(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "%s (%u byte%s%s)",
|
|
fetch_tgt ? "Yes" : "No",
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 1 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += 1;
|
|
break;
|
|
|
|
case PKT_CCC_PROV_TIMER:
|
|
if (suboptoff+1 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
if (revision == PACKETCABLE_CCC_DRAFT5)
|
|
max_timer_val = 30;
|
|
timer_val = tvb_get_guint8(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "%u%s (%u byte%s%s)", timer_val,
|
|
timer_val > max_timer_val ? " [Invalid]" : "",
|
|
subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 1 ? " [Invalid]" : "");
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += 1;
|
|
break;
|
|
|
|
case PKT_CCC_IETF_SEC_TKT:
|
|
if (suboptoff+2 > optend) {
|
|
proto_tree_add_text(v_tree, tvb, optoff, optend-optoff,
|
|
"Suboption %d: no room left in option for suboption value",
|
|
subopt);
|
|
return (optend);
|
|
}
|
|
sec_tcm = tvb_get_ntohs(tvb, suboptoff);
|
|
g_string_sprintfa(opt_str, "0x%04x (%u byte%s%s)", sec_tcm, subopt_len,
|
|
plurality(subopt_len, "", "s"),
|
|
subopt_len != 2 ? " [Invalid]" : "");
|
|
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
if (subopt_len == 2) {
|
|
pkt_s_tree = proto_item_add_subtree(vti, ett_bootp_option);
|
|
for (i = 0; i < 2; i++) {
|
|
if (sec_tcm & sec_tcm_vals[i].value) {
|
|
decode_bitfield_value(bit_fld, sec_tcm, sec_tcm_vals[i].value, 16);
|
|
proto_tree_add_text(pkt_s_tree, tvb, suboptoff, 2, "%sInvalidate %s",
|
|
bit_fld, sec_tcm_vals[i].strptr);
|
|
}
|
|
}
|
|
}
|
|
suboptoff += subopt_len;
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2, opt_str->str);
|
|
suboptoff += subopt_len;
|
|
break;
|
|
}
|
|
return suboptoff;
|
|
}
|
|
|
|
#define BOOTREQUEST 1
|
|
#define BOOTREPLY 2
|
|
|
|
static const value_string op_vals[] = {
|
|
{ BOOTREQUEST, "Boot Request" },
|
|
{ BOOTREPLY, "Boot Reply" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static void
|
|
dissect_bootp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_tree *bp_tree = NULL;
|
|
proto_item *ti;
|
|
proto_tree *flag_tree = NULL;
|
|
proto_item *fi;
|
|
guint8 op;
|
|
guint8 htype, hlen;
|
|
const guint8 *haddr;
|
|
int voff, eoff, tmpvoff; /* vendor offset, end offset */
|
|
guint32 ip_addr;
|
|
gboolean at_end;
|
|
const char *dhcp_type = NULL;
|
|
const guint8 *vendor_class_id = NULL;
|
|
guint16 flags;
|
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BOOTP");
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
/*
|
|
* In case we throw an exception fetching the opcode, etc.
|
|
*/
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
}
|
|
|
|
op = tvb_get_guint8(tvb, 0);
|
|
htype = tvb_get_guint8(tvb, 1);
|
|
hlen = tvb_get_guint8(tvb, 2);
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
switch (op) {
|
|
|
|
case BOOTREQUEST:
|
|
if ((htype == ARPHRD_ETHER || htype == ARPHRD_IEEE802) && hlen == 6)
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Boot Request from %s (%s)",
|
|
arphrdaddr_to_str(tvb_get_ptr(tvb, 28, hlen),
|
|
hlen, htype),
|
|
get_ether_name(tvb_get_ptr(tvb, 28, hlen)));
|
|
else
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Boot Request from %s",
|
|
arphrdaddr_to_str(tvb_get_ptr(tvb, 28, hlen),
|
|
hlen, htype));
|
|
break;
|
|
|
|
case BOOTREPLY:
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Boot Reply");
|
|
break;
|
|
|
|
default:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown BOOTP message type (%u)",
|
|
op);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_bootp, tvb, 0, -1, FALSE);
|
|
bp_tree = proto_item_add_subtree(ti, ett_bootp);
|
|
|
|
proto_tree_add_uint(bp_tree, hf_bootp_type, tvb,
|
|
0, 1,
|
|
op);
|
|
proto_tree_add_uint_format(bp_tree, hf_bootp_hw_type, tvb,
|
|
1, 1,
|
|
htype,
|
|
"Hardware type: %s",
|
|
arphrdtype_to_str(htype,
|
|
"Unknown (0x%02x)"));
|
|
proto_tree_add_uint(bp_tree, hf_bootp_hw_len, tvb,
|
|
2, 1, hlen);
|
|
proto_tree_add_item(bp_tree, hf_bootp_hops, tvb,
|
|
3, 1, FALSE);
|
|
proto_tree_add_item(bp_tree, hf_bootp_id, tvb,
|
|
4, 4, FALSE);
|
|
proto_tree_add_item(bp_tree, hf_bootp_secs, tvb,
|
|
8, 2, FALSE);
|
|
flags = tvb_get_ntohs(tvb, 10);
|
|
fi = proto_tree_add_uint(bp_tree, hf_bootp_flags, tvb,
|
|
10, 2, flags);
|
|
proto_item_append_text(fi, " (%s)",
|
|
(flags & BOOTP_BC) ? "Broadcast" : "Unicast");
|
|
flag_tree = proto_item_add_subtree(fi, ett_bootp_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_bootp_flags_broadcast, tvb,
|
|
10, 2, flags);
|
|
proto_tree_add_uint(flag_tree, hf_bootp_flags_reserved, tvb,
|
|
10, 2, flags);
|
|
proto_tree_add_item(bp_tree, hf_bootp_ip_client, tvb,
|
|
12, 4, FALSE);
|
|
proto_tree_add_item(bp_tree, hf_bootp_ip_your, tvb,
|
|
16, 4, FALSE);
|
|
proto_tree_add_item(bp_tree, hf_bootp_ip_server, tvb,
|
|
20, 4, FALSE);
|
|
proto_tree_add_item(bp_tree, hf_bootp_ip_relay, tvb,
|
|
24, 4, FALSE);
|
|
|
|
if (hlen > 0 && hlen <= 16) {
|
|
haddr = tvb_get_ptr(tvb, 28, hlen);
|
|
if((htype == 1 || htype == 6) && hlen == 6)
|
|
proto_tree_add_ether(bp_tree, hf_bootp_hw_ether_addr, tvb, 28, 6, haddr);
|
|
else
|
|
proto_tree_add_bytes_format(bp_tree, hf_bootp_hw_addr, tvb,
|
|
/* The chaddr element is 16 bytes in length, although
|
|
only the first hlen bytes are used */
|
|
28, 16,
|
|
haddr,
|
|
"Client hardware address: %s",
|
|
arphrdaddr_to_str(haddr,
|
|
hlen,
|
|
htype));
|
|
}
|
|
else {
|
|
proto_tree_add_text(bp_tree, tvb,
|
|
28, 16, "Client address not given");
|
|
}
|
|
|
|
/* The server host name is optional */
|
|
if (tvb_get_guint8(tvb, 44) != '\0') {
|
|
proto_tree_add_item(bp_tree, hf_bootp_server, tvb,
|
|
SERVER_NAME_OFFSET,
|
|
SERVER_NAME_LEN, FALSE);
|
|
}
|
|
else {
|
|
proto_tree_add_string_format(bp_tree, hf_bootp_server, tvb,
|
|
SERVER_NAME_OFFSET,
|
|
SERVER_NAME_LEN,
|
|
tvb_get_ptr(tvb, SERVER_NAME_OFFSET, 1),
|
|
"Server host name not given");
|
|
}
|
|
|
|
/* Boot file */
|
|
if (tvb_get_guint8(tvb, 108) != '\0') {
|
|
proto_tree_add_item(bp_tree, hf_bootp_file, tvb,
|
|
FILE_NAME_OFFSET,
|
|
FILE_NAME_LEN, FALSE);
|
|
}
|
|
else {
|
|
proto_tree_add_string_format(bp_tree, hf_bootp_file, tvb,
|
|
FILE_NAME_OFFSET,
|
|
FILE_NAME_LEN,
|
|
tvb_get_ptr(tvb, FILE_NAME_OFFSET, 1),
|
|
"Boot file name not given");
|
|
}
|
|
}
|
|
|
|
voff = VENDOR_INFO_OFFSET;
|
|
|
|
/* rfc2132 says it SHOULD exist, not that it MUST exist */
|
|
if (tvb_bytes_exist(tvb, voff, 4)) {
|
|
if (tvb_get_ntohl(tvb, voff) == 0x63825363) {
|
|
if (tree) {
|
|
tvb_memcpy(tvb, (void *)&ip_addr, voff, sizeof(ip_addr));
|
|
proto_tree_add_ipv4_format(bp_tree, hf_bootp_cookie, tvb,
|
|
voff, 4, ip_addr,
|
|
"Magic cookie: (OK)");
|
|
}
|
|
voff += 4;
|
|
}
|
|
else {
|
|
if (tree) {
|
|
proto_tree_add_text(bp_tree, tvb,
|
|
voff, 64, "Bootp vendor specific options");
|
|
}
|
|
voff += 64;
|
|
}
|
|
}
|
|
|
|
eoff = tvb_reported_length(tvb);
|
|
|
|
/*
|
|
* In the first pass, we just look for the DHCP message type
|
|
* and Vendor class identifier options.
|
|
*/
|
|
tmpvoff = voff;
|
|
at_end = FALSE;
|
|
while (tmpvoff < eoff && !at_end) {
|
|
tmpvoff += bootp_option(tvb, 0, tmpvoff, eoff, TRUE, &at_end,
|
|
&dhcp_type, &vendor_class_id);
|
|
}
|
|
|
|
/*
|
|
* If there was a DHCP message type option, flag this packet
|
|
* as DHCP.
|
|
*/
|
|
if (dhcp_type != NULL) {
|
|
/*
|
|
* Yes, this is a DHCP packet, and "dhcp_type" is the
|
|
* packet type.
|
|
*/
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DHCP");
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "DHCP %-8s - Transaction ID 0x%x",
|
|
dhcp_type, tvb_get_ntohl(tvb, 4));
|
|
if (tree)
|
|
proto_tree_add_boolean_hidden(bp_tree, hf_bootp_dhcp,
|
|
tvb, 0, 0, 1);
|
|
tap_queue_packet( bootp_dhcp_tap, pinfo, (gpointer) dhcp_type);
|
|
}
|
|
|
|
/*
|
|
* If we're not building the protocol tree, we don't need to
|
|
* make a second pass.
|
|
*/
|
|
if (tree == NULL)
|
|
return;
|
|
|
|
/*
|
|
* OK, now build the protocol tree.
|
|
*/
|
|
at_end = FALSE;
|
|
while (voff < eoff && !at_end) {
|
|
voff += bootp_option(tvb, bp_tree, voff, eoff, FALSE, &at_end,
|
|
&dhcp_type, &vendor_class_id);
|
|
}
|
|
if (voff < eoff) {
|
|
/*
|
|
* Padding after the end option.
|
|
*/
|
|
proto_tree_add_text(bp_tree, tvb, voff, eoff - voff, "Padding");
|
|
}
|
|
}
|
|
|
|
void
|
|
proto_register_bootp(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_bootp_dhcp,
|
|
{ "Frame is DHCP", "bootp.dhcp", FT_BOOLEAN,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_type,
|
|
{ "Message type", "bootp.type", FT_UINT8,
|
|
BASE_DEC, VALS(op_vals), 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_hw_type,
|
|
{ "Hardware type", "bootp.hw.type", FT_UINT8,
|
|
BASE_HEX, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_hw_len,
|
|
{ "Hardware address length", "bootp.hw.len", FT_UINT8,
|
|
BASE_DEC, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_hops,
|
|
{ "Hops", "bootp.hops", FT_UINT8,
|
|
BASE_DEC, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_id,
|
|
{ "Transaction ID", "bootp.id", FT_UINT32,
|
|
BASE_HEX, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_secs,
|
|
{ "Seconds elapsed", "bootp.secs", FT_UINT16,
|
|
BASE_DEC, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_flags,
|
|
{ "Bootp flags", "bootp.flags", FT_UINT16,
|
|
BASE_HEX, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_flags_broadcast,
|
|
{ "Broadcast flag", "bootp.flags.bc", FT_BOOLEAN,
|
|
16, TFS(&flag_set_broadcast), BOOTP_BC,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_flags_reserved,
|
|
{ "Reserved flags", "bootp.flags.reserved", FT_UINT16,
|
|
BASE_HEX, NULL, BOOTP_MBZ,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_ip_client,
|
|
{ "Client IP address", "bootp.ip.client",FT_IPv4,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_ip_your,
|
|
{ "Your (client) IP address", "bootp.ip.your", FT_IPv4,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_ip_server,
|
|
{ "Next server IP address", "bootp.ip.server",FT_IPv4,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_ip_relay,
|
|
{ "Relay agent IP address", "bootp.ip.relay", FT_IPv4,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_hw_addr,
|
|
{ "Client hardware address", "bootp.hw.addr", FT_BYTES,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_hw_ether_addr,
|
|
{ "Client MAC address", "bootp.hw.mac_addr", FT_ETHER,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_server,
|
|
{ "Server host name", "bootp.server", FT_STRING,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_file,
|
|
{ "Boot file name", "bootp.file", FT_STRING,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_cookie,
|
|
{ "Magic cookie", "bootp.cookie", FT_IPv4,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_vendor,
|
|
{ "Bootp Vendor Options", "bootp.vendor", FT_BYTES,
|
|
BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_s,
|
|
{ "Server", "bootp.fqdn.s", FT_BOOLEAN,
|
|
8, TFS(&tfs_fqdn_s), F_FQDN_S,
|
|
"If true, server should do DDNS update", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_o,
|
|
{ "Server overrides", "bootp.fqdn.o", FT_BOOLEAN,
|
|
8, TFS(&tfs_fqdn_o), F_FQDN_O,
|
|
"If true, server insists on doing DDNS update", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_e,
|
|
{ "Encoding", "bootp.fqdn.e", FT_BOOLEAN,
|
|
8, TFS(&tfs_fqdn_e), F_FQDN_E,
|
|
"If true, name is binary encoded", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_n,
|
|
{ "Server DDNS", "bootp.fqdn.n", FT_BOOLEAN,
|
|
8, TFS(&tfs_fqdn_n), F_FQDN_N,
|
|
"If true, server should not do any DDNS updates", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_mbz,
|
|
{ "Reserved flags", "bootp.fqdn.mbz", FT_UINT8,
|
|
BASE_HEX, NULL, F_FQDN_MBZ,
|
|
"", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_rcode1,
|
|
{ "A-RR result", "bootp.fqdn.rcode1", FT_UINT8,
|
|
BASE_DEC, NULL, 0x0,
|
|
"Result code of A-RR update", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_rcode2,
|
|
{ "PTR-RR result", "bootp.fqdn.rcode2", FT_UINT8,
|
|
BASE_DEC, NULL, 0x0,
|
|
"Result code of PTR-RR update", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_name,
|
|
{ "Client name", "bootp.fqdn.name", FT_BYTES,
|
|
BASE_NONE, NULL, 0x0,
|
|
"Name to register via DDNS", HFILL }},
|
|
|
|
{ &hf_bootp_fqdn_asciiname,
|
|
{ "Client name", "bootp.fqdn.name", FT_STRING,
|
|
BASE_NONE, NULL, 0x0,
|
|
"Name to register via DDNS", HFILL }},
|
|
|
|
{ &hf_bootp_pkt_mtacap_len,
|
|
{ "PacketCable MTA Device Capabilities Length", "bootp.vendor.pktc.mtacap_len",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"PacketCable MTA Device Capabilities Length", HFILL }},
|
|
{ &hf_bootp_docsis_cmcap_len,
|
|
{ "DOCSIS CM Device Capabilities Length", "bootp.vendor.docsis.cmcap_len",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"DOCSIS Cable Modem Device Capabilities Length", HFILL }},
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_bootp,
|
|
&ett_bootp_flags,
|
|
&ett_bootp_option,
|
|
&ett_bootp_fqdn,
|
|
};
|
|
|
|
module_t *bootp_module;
|
|
|
|
proto_bootp = proto_register_protocol("Bootstrap Protocol", "BOOTP/DHCP",
|
|
"bootp");
|
|
proto_register_field_array(proto_bootp, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
bootp_dhcp_tap = register_tap("bootp");
|
|
|
|
bootp_module = prefs_register_protocol(proto_bootp, NULL);
|
|
|
|
prefs_register_bool_preference(bootp_module, "novellserverstring",
|
|
"Decode Option 85 as String",
|
|
"Novell Servers option 85 can be configured as a string instead of address",
|
|
&novell_string);
|
|
|
|
prefs_register_enum_preference(bootp_module, "pkt.ccc.protocol_version",
|
|
"PacketCable CCC protocol version",
|
|
"The PacketCable CCC protocol version",
|
|
&pkt_ccc_protocol_version,
|
|
pkt_ccc_protocol_versions,
|
|
FALSE);
|
|
|
|
prefs_register_uint_preference(bootp_module, "pkt.ccc.option",
|
|
"PacketCable CCC option",
|
|
"Option Number for PacketCable CableLabs Client Configuration",
|
|
10,
|
|
&pkt_ccc_option);
|
|
|
|
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_bootp(void)
|
|
{
|
|
dissector_handle_t bootp_handle;
|
|
|
|
bootp_handle = create_dissector_handle(dissect_bootp, proto_bootp);
|
|
dissector_add("udp.port", UDP_PORT_BOOTPS, bootp_handle);
|
|
dissector_add("udp.port", UDP_PORT_BOOTPC, bootp_handle);
|
|
}
|