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wireshark/epan/dissectors/packet-bootp.c

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/* packet-bootp.c
* Routines for BOOTP/DHCP packet disassembly
* Copyright 1998, Gilbert Ramirez <gram@alumni.rice.edu>
* Copyright 2004, Thomas Anders <thomas.anders [AT] blue-cable.de>
*
* $Id$
*
* The information used comes from:
* RFC 951: Bootstrap Protocol
* RFC 1497: BOOTP extensions
* RFC 1542: Clarifications and Extensions for the Bootstrap Protocol
* RFC 2131: Dynamic Host Configuration Protocol
* RFC 2132: DHCP Options and BOOTP Vendor Extensions
* RFC 2241: DHCP Options for Novell Directory Services
* RFC 2242: NetWare/IP Domain Name and Information
* RFC 2489: Procedure for Defining New DHCP Options
* RFC 2610: DHCP Options for Service Location Protocol
* RFC 3046: DHCP Relay Agent Information Option
* RFC 3118: Authentication for DHCP Messages
* RFC 3203: DHCP reconfigure extension
* RFC 3495: DHCP Option (122) for CableLabs Client Configuration
* RFC 3594: PacketCable Security Ticket Control Sub-Option (122.9)
* RFC 3442: Classless Static Route Option for DHCP version 4
* RFC 4243: Vendor-Specific Information Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option
* RFC 4776: Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information
* draft-ietf-dhc-fqdn-option-07.txt
* BOOTP and DHCP Parameters
* http://www.iana.org/assignments/bootp-dhcp-parameters
* DOCSIS(TM) 2.0 Radio Frequency Interface Specification
* http://www.cablemodem.com/downloads/specs/CM-SP-RFI2.0-I10-051209.pdf
* PacketCable(TM) 1.0 MTA Device Provisioning Specification
* http://www.packetcable.com/downloads/specs/PKT-SP-PROV-I11-050812.pdf
* http://www.cablelabs.com/specifications/archives/PKT-SP-PROV-I05-021127.pdf (superseded by above)
* PacketCable(TM) 1.5 MTA Device Provisioning Specification
* http://www.packetcable.com/downloads/specs/PKT-SP-PROV1.5-I02-050812.pdf
* CableHome(TM) 1.1 Specification
* http://www.cablelabs.com/projects/cablehome/downloads/specs/CH-SP-CH1.1-I11-060407.pdf
* DSL Forum TR-111
* http://www.dslforum.org/techwork/tr/TR-111.pdf
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* Some of the development of the BOOTP/DHCP protocol decoder was sponsored by
* Cable Television Laboratories, Inc. ("CableLabs") based upon proprietary
* CableLabs' specifications. Your license and use of this protocol decoder
* does not mean that you are licensed to use the CableLabs'
* specifications. If you have questions about this protocol, contact
* jf.mule [AT] cablelabs.com or c.stuart [AT] cablelabs.com for additional
* information.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include "packet-arp.h"
#include "packet-dns.h" /* for get_dns_name() */
#include <epan/addr_resolv.h>
#include <epan/prefs.h>
#include <epan/tap.h>
#include <epan/strutil.h>
#include <epan/arptypes.h>
#include <epan/emem.h>
#include <epan/sminmpec.h>
static int bootp_dhcp_tap = -1;
static int proto_bootp = -1;
static int hf_bootp_type = -1;
static int hf_bootp_hw_type = -1;
static int hf_bootp_hw_len = -1;
static int hf_bootp_hops = -1;
static int hf_bootp_id = -1;
static int hf_bootp_secs = -1;
static int hf_bootp_flags = -1;
static int hf_bootp_flags_broadcast = -1;
static int hf_bootp_flags_reserved = -1;
static int hf_bootp_ip_client = -1;
static int hf_bootp_ip_your = -1;
static int hf_bootp_ip_server = -1;
static int hf_bootp_ip_relay = -1;
static int hf_bootp_hw_addr = -1;
static int hf_bootp_server = -1;
static int hf_bootp_file = -1;
static int hf_bootp_cookie = -1;
static int hf_bootp_vendor = -1;
static int hf_bootp_dhcp = -1;
static int hf_bootp_fqdn_s = -1;
static int hf_bootp_fqdn_o = -1;
static int hf_bootp_fqdn_e = -1;
static int hf_bootp_fqdn_n = -1;
static int hf_bootp_fqdn_mbz = -1;
static int hf_bootp_fqdn_rcode1 = -1;
static int hf_bootp_fqdn_rcode2 = -1;
static int hf_bootp_fqdn_name = -1;
static int hf_bootp_fqdn_asciiname = -1;
static int hf_bootp_pkt_mtacap_len = -1;
static int hf_bootp_docsis_cmcap_len = -1;
static int hf_bootp_hw_ether_addr = -1;
static int hf_bootp_alu_vid = -1;
static int hf_bootp_alu_tftp1 = -1;
static int hf_bootp_alu_tftp2 = -1;
static int hf_bootp_client_identifier_uuid = -1;
static int hf_bootp_client_network_id_major_ver = -1;
static int hf_bootp_client_network_id_minor_ver = -1;
static int hf_bootp_option_type = -1;
static int hf_bootp_option_length = -1;
static int hf_bootp_option_value = -1;
static gint ett_bootp = -1;
static gint ett_bootp_flags = -1;
static gint ett_bootp_option = -1;
static gint ett_bootp_fqdn = -1;
/* Civic Address What field (RFC 4776) */
static const value_string civic_address_what_values[] = {
{ 0, "Location of the DHCP server" },
{ 1, "Location of the network element believed to be closest to the client" },
{ 2, "Location of the client"},
{ 0, NULL}
};
/* Civic Address Type field (RFC 4119, RFC 4776, draft-ietf-geopriv-revised-civic-lo-07) */
static const value_string civic_address_type_values[] = {
{ 0, "Language" },
{ 1, "A1" },
{ 2, "A2" },
{ 3, "A3" },
{ 4, "A4" },
{ 5, "A5" },
{ 6, "A6" },
{ 16, "PRD (Leading street direction)" },
{ 17, "POD (Trailing street suffix)" },
{ 18, "STS (Street suffix)" },
{ 19, "HNO (House number)" },
{ 20, "HNS (House number suffix)" },
{ 21, "LMK (Landmark or vanity address)" },
{ 22, "LOC (Additional location information)" },
{ 23, "NAM" },
{ 24, "PC (Postal/ZIP code)" },
{ 25, "BLD (Building)" },
{ 26, "UNIT" },
{ 27, "FLR (Floor)" },
{ 28, "ROOM" },
{ 29, "PLC (Place-type)" },
{ 30, "PCN (Postal community name)" },
{ 31, "POBOX" },
{ 32, "ADDCODE (Additional Code)" },
{ 33, "SEAT" },
{ 34, "RD (Primary road or street)" },
{ 35, "RDSEC (Road section)" },
{ 36, "RDBR (Road branch)" },
{ 37, "RDSUBBR (Road sub-branch)" },
{ 38, "PRM (Road pre-modifier)" },
{ 39, "POM (Road post-modifier" },
{ 128, "Script" },
{ 0, NULL }
};
static gboolean novell_string = FALSE;
#define UDP_PORT_BOOTPS 67
#define UDP_PORT_BOOTPC 68
#define BOOTP_BC 0x8000
#define BOOTP_MBZ 0x7FFF
/* FQDN stuff */
#define F_FQDN_S 0x01
#define F_FQDN_O 0x02
#define F_FQDN_E 0x04
#define F_FQDN_N 0x08
#define F_FQDN_MBZ 0xf0
static const true_false_string tfs_fqdn_s = {
"Server",
"Client"
};
static const true_false_string tfs_fqdn_o = {
"Override",
"No override"
};
static const true_false_string tfs_fqdn_e = {
"Binary encoding",
"ASCII encoding"
};
static const true_false_string tfs_fqdn_n = {
"No server updates",
"Some server updates"
};
enum field_type {
special,
none,
presence,
ipv4, /* single IPv4 address */
ipv4_list, /* list of IPv4 addresses */
string,
bytes,
opaque,
val_boolean,
val_u_byte,
val_u_short,
val_u_short_list,
val_u_le_short,
val_u_long,
time_in_secs,
fqdn,
ipv4_or_fqdn
};
struct opt_info {
const char *text;
enum field_type ftype;
const void *data;
};
static const true_false_string flag_set_broadcast = {
"Broadcast",
"Unicast"
};
/* PacketCable/DOCSIS definitions */
#define PACKETCABLE_MTA_CAP10 "pktc1.0:"
#define PACKETCABLE_MTA_CAP15 "pktc1.5:"
#define PACKETCABLE_CM_CAP11 "docsis1.1:"
#define PACKETCABLE_CM_CAP20 "docsis2.0:"
#define PACKETCABLE_CCC_I05 1
#define PACKETCABLE_CCC_DRAFT5 2
#define PACKETCABLE_CCC_RFC_3495 3
static enum_val_t pkt_ccc_protocol_versions[] = {
{ "ccc_i05", "PKT-SP-PROV-I05-021127", PACKETCABLE_CCC_I05 },
{ "ccc_draft_5", "IETF Draft 5", PACKETCABLE_CCC_DRAFT5 },
{ "rfc_3495", "RFC 3495", PACKETCABLE_CCC_RFC_3495 },
{ NULL, NULL, 0 }
};
static gint pkt_ccc_protocol_version = PACKETCABLE_CCC_RFC_3495;
static guint pkt_ccc_option = 122;
static int dissect_vendor_pxeclient_suboption(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static int dissect_vendor_cablelabs_suboption(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static int dissect_netware_ip_suboption(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static int dissect_vendor_tr111_suboption(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static int bootp_dhcp_decode_agent_info(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static void dissect_packetcable_mta_cap(proto_tree *v_tree, tvbuff_t *tvb,
int voff, int len);
static void dissect_docsis_cm_cap(proto_tree *v_tree, tvbuff_t *tvb,
int voff, int len);
static int dissect_packetcable_i05_ccc(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend);
static int dissect_packetcable_ietf_ccc(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend, int revision);
#define OPT53_DISCOVER "Discover"
/* http://www.iana.org/assignments/bootp-dhcp-parameters */
static const value_string opt53_text[] = {
{ 1, OPT53_DISCOVER },
{ 2, "Offer" },
{ 3, "Request" },
{ 4, "Decline" },
{ 5, "ACK" },
{ 6, "NAK" },
{ 7, "Release" },
{ 8, "Inform" },
{ 9, "Force Renew" },
{ 10, "Lease query" }, /* RFC4388 */
{ 11, "Lease Unassigned" }, /* RFC4388 */
{ 12, "Lease Unknown" }, /* RFC4388 */
{ 13, "Lease Active" }, /* RFC4388 */
/* draft-ietf-dhc-leasequery-09.txt
{ 13, "Lease query" }, */
{ 14, "Lease known" },
{ 15, "Lease unknown" },
{ 16, "Lease active" },
{ 17, "Unimplemented" },
{ 0, NULL }
};
/* DHCP Authentication protocols */
#define AUTHEN_PROTO_CONFIG_TOKEN 0
#define AUTHEN_PROTO_DELAYED_AUTHEN 1
/* DHCP Authentication algorithms for delayed authentication */
#define AUTHEN_DELAYED_ALGO_HMAC_MD5 1
/* DHCP Authentication Replay Detection Methods */
#define AUTHEN_RDM_MONOTONIC_COUNTER 0x00
/* DHCP Option Overload (option code 52) */
#define OPT_OVERLOAD_FILE 1
#define OPT_OVERLOAD_SNAME 2
#define OPT_OVERLOAD_BOTH 3
/* Server name and boot file offsets and lengths */
#define SERVER_NAME_OFFSET 44
#define SERVER_NAME_LEN 64
#define FILE_NAME_OFFSET 108
#define FILE_NAME_LEN 128
#define VENDOR_INFO_OFFSET 236
static const true_false_string toggle_tfs = {
"Enabled",
"Disabled"
};
static const true_false_string yes_no_tfs = {
"Yes",
"No"
};
static const value_string bootp_nbnt_vals[] = {
{0x1, "B-node" },
{0x2, "P-node" },
{0x4, "M-node" },
{0x8, "H-node" },
{0, NULL }
};
static const value_string bootp_client_arch[] = {
{ 0x0000, "IA x86 PC" },
{ 0x0001, "NEC/PC98" },
{ 0x0002, "IA64 PC" },
{ 0x0003, "DEC Alpha" },
{ 0x0004, "ArcX86" },
{ 0x0005, "Intel Lean Client" },
{ 0, NULL }
};
static struct opt_info bootp_opt[] = {
/* 0 */ { "Padding", none, NULL },
/* 1 */ { "Subnet Mask", ipv4, NULL },
/* 2 */ { "Time Offset", time_in_secs, NULL },
/* 3 */ { "Router", ipv4_list, NULL },
/* 4 */ { "Time Server", ipv4_list, NULL },
/* 5 */ { "Name Server", ipv4_list, NULL },
/* 6 */ { "Domain Name Server", ipv4_list, NULL },
/* 7 */ { "Log Server", ipv4_list, NULL },
/* 8 */ { "Cookie Server", ipv4_list, NULL },
/* 9 */ { "LPR Server", ipv4_list, NULL },
/* 10 */ { "Impress Server", ipv4_list, NULL },
/* 11 */ { "Resource Location Server", ipv4_list, NULL },
/* 12 */ { "Host Name", string, NULL },
/* 13 */ { "Boot File Size", val_u_short, NULL },
/* 14 */ { "Merit Dump File", string, NULL },
/* 15 */ { "Domain Name", string, NULL },
/* 16 */ { "Swap Server", ipv4, NULL },
/* 17 */ { "Root Path", string, NULL },
/* 18 */ { "Extensions Path", string, NULL },
/* 19 */ { "IP Forwarding", val_boolean, TFS(&toggle_tfs) },
/* 20 */ { "Non-Local Source Routing", val_boolean, TFS(&toggle_tfs) },
/* 21 */ { "Policy Filter", special, NULL },
/* 22 */ { "Maximum Datagram Reassembly Size", val_u_short, NULL },
/* 23 */ { "Default IP Time-to-Live", val_u_byte, NULL },
/* 24 */ { "Path MTU Aging Timeout", time_in_secs, NULL },
/* 25 */ { "Path MTU Plateau Table", val_u_short_list, NULL },
/* 26 */ { "Interface MTU", val_u_short, NULL },
/* 27 */ { "All Subnets are Local", val_boolean, TFS(&yes_no_tfs) },
/* 28 */ { "Broadcast Address", ipv4, NULL },
/* 29 */ { "Perform Mask Discovery", val_boolean, TFS(&toggle_tfs) },
/* 30 */ { "Mask Supplier", val_boolean, TFS(&yes_no_tfs) },
/* 31 */ { "Perform Router Discover", val_boolean, TFS(&toggle_tfs) },
/* 32 */ { "Router Solicitation Address", ipv4, NULL },
/* 33 */ { "Static Route", special, NULL },
/* 34 */ { "Trailer Encapsulation", val_boolean, TFS(&toggle_tfs) },
/* 35 */ { "ARP Cache Timeout", time_in_secs, NULL },
/* 36 */ { "Ethernet Encapsulation", val_boolean, TFS(&toggle_tfs) },
/* 37 */ { "TCP Default TTL", val_u_byte, NULL },
/* 38 */ { "TCP Keepalive Interval", time_in_secs, NULL },
/* 39 */ { "TCP Keepalive Garbage", val_boolean, TFS(&toggle_tfs) },
/* 40 */ { "Network Information Service Domain", string, NULL },
/* 41 */ { "Network Information Service Servers", ipv4_list, NULL },
/* 42 */ { "Network Time Protocol Servers", ipv4_list, NULL },
/* 43 */ { "Vendor-Specific Information", special, NULL },
/* 44 */ { "NetBIOS over TCP/IP Name Server", ipv4_list, NULL },
/* 45 */ { "NetBIOS over TCP/IP Datagram Distribution Name Server", ipv4_list, NULL },
/* 46 */ { "NetBIOS over TCP/IP Node Type", val_u_byte, VALS(bootp_nbnt_vals) },
/* 47 */ { "NetBIOS over TCP/IP Scope", string, NULL },
/* 48 */ { "X Window System Font Server", ipv4_list, NULL },
/* 49 */ { "X Window System Display Manager", ipv4_list, NULL },
/* 50 */ { "Requested IP Address", ipv4, NULL },
/* 51 */ { "IP Address Lease Time", time_in_secs, NULL },
/* 52 */ { "Option Overload", special, NULL },
/* 53 */ { "DHCP Message Type", special, NULL },
/* 54 */ { "Server Identifier", ipv4, NULL },
/* 55 */ { "Parameter Request List", special, NULL },
/* 56 */ { "Message", string, NULL },
/* 57 */ { "Maximum DHCP Message Size", val_u_short, NULL },
/* 58 */ { "Renewal Time Value", time_in_secs, NULL },
/* 59 */ { "Rebinding Time Value", time_in_secs, NULL },
/* 60 */ { "Vendor class identifier", special, NULL },
/* 61 */ { "Client identifier", special, NULL },
/* 62 */ { "Novell/Netware IP domain", string, NULL },
/* 63 */ { "Novell Options", special, NULL },
/* 64 */ { "Network Information Service+ Domain", string, NULL },
/* 65 */ { "Network Information Service+ Servers", ipv4_list, NULL },
/* 66 */ { "TFTP Server Name", string, NULL },
/* 67 */ { "Bootfile name", string, NULL },
/* 68 */ { "Mobile IP Home Agent", ipv4_list, NULL },
/* 69 */ { "SMTP Server", ipv4_list, NULL },
/* 70 */ { "POP3 Server", ipv4_list, NULL },
/* 71 */ { "NNTP Server", ipv4_list, NULL },
/* 72 */ { "Default WWW Server", ipv4_list, NULL },
/* 73 */ { "Default Finger Server", ipv4_list, NULL },
/* 74 */ { "Default IRC Server", ipv4_list, NULL },
/* 75 */ { "StreetTalk Server", ipv4_list, NULL },
/* 76 */ { "StreetTalk Directory Assistance Server", ipv4_list, NULL },
/* 77 */ { "User Class Information", opaque, NULL },
/* 78 */ { "Directory Agent Information", special, NULL },
/* 79 */ { "Service Location Agent Scope", special, NULL },
/* 80 */ { "Naming Authority", opaque, NULL },
/* 81 */ { "Client Fully Qualified Domain Name", special, NULL },
/* 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", val_u_short, VALS(bootp_client_arch) },
/* 94 */ { "Client Network Device Interface", special, NULL },
/* 95 */ { "Lightweight Directory Access Protocol", opaque, NULL },
/* 96 */ { "IPv6 Transitions", opaque, NULL },
/* 97 */ { "UUID/GUID-based Client Identifier", special, NULL },
/* 98 */ { "Open Group's User Authentication", opaque, NULL },
/* 99 */ { "Civic Addresses Configuration", 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", ipv4_list, NULL },
/* 119 */ { "Domain Search", opaque, NULL },
/* 120 */ { "SIP Servers", opaque, NULL },
/* 121 */ { "Classless Static Route", special, NULL },
/* 122 */ { "CableLabs Client Configuration", opaque, NULL },
/* 123 */ { "Coordinate-based Location Configuration", opaque, NULL },
/* 124 */ { "V-I Vendor Class", opaque, NULL },
/* 125 */ { "V-I Vendor-specific Information", 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 },
/* 211 */ { "Private", opaque, NULL },
/* 212 */ { "Private", opaque, NULL },
/* 213 */ { "Private", opaque, NULL },
/* 214 */ { "Private", opaque, NULL },
/* 215 */ { "Private", opaque, NULL },
/* 216 */ { "Private", opaque, NULL },
/* 217 */ { "Private", opaque, NULL },
/* 218 */ { "Private", opaque, NULL },
/* 219 */ { "Private", opaque, NULL },
/* 220 */ { "Private", opaque, NULL },
/* 221 */ { "Private", opaque, NULL },
/* 222 */ { "Private", opaque, NULL },
/* 223 */ { "Private", opaque, NULL },
/* 224 */ { "Private", opaque, NULL },
/* 225 */ { "Private", opaque, NULL },
/* 226 */ { "Private", opaque, NULL },
/* 227 */ { "Private", opaque, NULL },
/* 228 */ { "Private", opaque, NULL },
/* 229 */ { "Private", opaque, NULL },
/* 230 */ { "Private", opaque, NULL },
/* 231 */ { "Private", opaque, NULL },
/* 232 */ { "Private", opaque, NULL },
/* 233 */ { "Private", opaque, NULL },
/* 234 */ { "Private", opaque, NULL },
/* 235 */ { "Private", opaque, NULL },
/* 236 */ { "Private", opaque, NULL },
/* 237 */ { "Private", opaque, NULL },
/* 238 */ { "Private", opaque, NULL },
/* 239 */ { "Private", opaque, NULL },
/* 240 */ { "Private", opaque, NULL },
/* 241 */ { "Private", opaque, NULL },
/* 242 */ { "Private", opaque, NULL },
/* 243 */ { "Private", opaque, NULL },
/* 244 */ { "Private", opaque, NULL },
/* 245 */ { "Private", opaque, NULL },
/* 246 */ { "Private", opaque, NULL },
/* 247 */ { "Private", opaque, NULL },
/* 248 */ { "Private", opaque, NULL },
/* 249 */ { "Classless Static Route (Microsoft)", special, NULL },
/* 250 */ { "Private", opaque, NULL },
/* 251 */ { "Private", opaque, NULL },
/* 252 */ { "Proxy autodiscovery", string, NULL },
/* 253 */ { "Private", opaque, NULL },
/* 254 */ { "Private", opaque, NULL },
/* 255 */ { "Private", opaque, NULL }
};
static const char *
bootp_get_opt_text(unsigned int idx)
{
if(idx>=(sizeof(bootp_opt)/sizeof(struct opt_info)))
return "unknown";
return bootp_opt[idx].text;
}
static const void *
bootp_get_opt_data(unsigned int idx)
{
if(idx>=(sizeof(bootp_opt)/sizeof(struct opt_info)))
return NULL;
return bootp_opt[idx].data;
}
static enum field_type
bootp_get_opt_ftype(unsigned int idx)
{
if(idx>=(sizeof(bootp_opt)/sizeof(struct opt_info)))
return none;
return bootp_opt[idx].ftype;
}
/* Returns the number of bytes consumed by this option. */
static int
bootp_option(tvbuff_t *tvb, proto_tree *bp_tree, int voff, int eoff,
gboolean first_pass, gboolean *at_end, const char **dhcp_type_p,
const guint8 **vendor_class_id_p, guint8 *overload_p)
{
const char *text;
enum field_type ftype;
guchar code = tvb_get_guint8(tvb, voff);
int optlen;
const struct true_false_string *tfs;
const value_string *vs;
guchar byte;
int i, consumed;
int optoff, optleft, optend;
gulong time_secs;
proto_tree *v_tree, *ft;
proto_item *vti;
guint8 protocol;
guint8 algorithm;
guint8 rdm;
guint8 fqdn_flags;
int o52voff, o52eoff;
gboolean o52at_end;
gboolean skip_opaque = FALSE;
guint8 s_option;
int ava_vid;
const gchar *dns_name;
static const value_string slpda_vals[] = {
{0x00, "Dynamic Discovery" },
{0x01, "Static Discovery" },
{0x80, "Backwards compatibility" },
{0, NULL } };
static const value_string slp_scope_vals[] = {
{0x00, "Preferred Scope" },
{0x01, "Mandatory Scope" },
{0, NULL } };
static const value_string authen_protocol_vals[] = {
{AUTHEN_PROTO_CONFIG_TOKEN, "configuration token" },
{AUTHEN_PROTO_DELAYED_AUTHEN, "delayed authentication" },
{0, NULL } };
static const value_string authen_da_algo_vals[] = {
{AUTHEN_DELAYED_ALGO_HMAC_MD5, "HMAC_MD5" },
{0, NULL } };
static const value_string authen_rdm_vals[] = {
{AUTHEN_RDM_MONOTONIC_COUNTER, "Monotonically-increasing counter" },
{0, NULL } };
static const value_string opt_overload_vals[] = {
{ OPT_OVERLOAD_FILE, "Boot file name holds options", },
{ OPT_OVERLOAD_SNAME, "Server host name holds options", },
{ OPT_OVERLOAD_BOTH, "Boot file and server host names hold options" },
{ 0, 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 (%d byte%s)", i, (i>1)?"s":"");
}
}
consumed = i;
return consumed;
case 255: /* End Option */
if (!first_pass) {
if (bp_tree != NULL) {
proto_tree_add_text(bp_tree, tvb, voff, 1,
"End Option%s", *overload_p?" (overload)":"");
}
}
*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:
*
* 52 (Overload) - we need this to properly dissect the
* file and sname fields
*
* 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 52:
*overload_p = tvb_get_guint8(tvb, voff+2);
break;
case 53:
*dhcp_type_p =
val_to_str(tvb_get_guint8(tvb, voff+2),
opt53_text,
"Unknown Message Type (0x%02x)");
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;
}
/* Normal cases */
text = bootp_get_opt_text(code);
ftype = bootp_get_opt_ftype(code);
optoff = voff+2;
vti = proto_tree_add_text(bp_tree, tvb, voff, consumed,
"Option: (t=%d,l=%d) %s", code, optlen, text);
v_tree = proto_item_add_subtree(vti, ett_bootp_option);
proto_tree_add_uint_format_value(v_tree, hf_bootp_option_type,
tvb, voff, 1, code, "(%d) %s", code, text);
proto_tree_add_item(v_tree, hf_bootp_option_length, tvb, voff+1, 1, FALSE);
if (optlen > 0) {
proto_tree_add_item(v_tree, hf_bootp_option_value, tvb, voff+2, optlen, FALSE);
}
/* Special cases */
switch (code) {
case 21: /* Policy Filter */
if (optlen == 8) {
/* one IP address pair */
proto_item_append_text(vti, " = %s/%s",
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 */
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_item_append_text(vti, " = %s/%s",
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 */
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 */
s_option = tvb_get_guint8(tvb, optoff);
/* Alcatel-Lucent AVA */
if (optlen == 5 && s_option == 58)
{
proto_item_append_text(vti, " (Alcatel-Lucent AVA)");
ava_vid = tvb_get_ntohs(tvb, optoff + 2);
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Opcode: 58");
proto_tree_add_uint (v_tree, hf_bootp_alu_vid, tvb, optoff + 2,
2, ava_vid);
if (ava_vid == 65535)
{
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Type: Request from ALU IP Phone");
} else {
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Type: Response from DHCP Server");
}
break;
}
/* Alcatel-Lucent DHCP Extensions for Spatial Redundancy */
if ((optlen == 12 && s_option == 64) ||
(optlen == 6 && s_option == 64) ||
(optlen == 6 && s_option == 65))
{
if (optlen == 6 && s_option == 64)
{
proto_item_append_text(vti, " (Alcatel-Lucent TFTP Options)");
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Opcode: 64");
proto_tree_add_ipv4(v_tree,hf_bootp_alu_tftp1 ,tvb,optoff+2, 4,
tvb_get_ipv4(tvb,optoff+2));
}
if (optlen == 6 && s_option == 65)
{
proto_item_append_text(vti, " (Alcatel-Lucent TFTP Options)");
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Opcode: 65");
proto_tree_add_ipv4(v_tree,hf_bootp_alu_tftp2 ,tvb,optoff+2 ,4,
tvb_get_ipv4(tvb,optoff+2));
}
if (optlen == 12 && s_option == 64)
{
proto_item_append_text(vti, " (Alcatel-Lucent TFTP Options)");
proto_tree_add_text (v_tree, tvb, optoff + 2,
2, "Opcode: 64 and 65");
proto_tree_add_ipv4(v_tree,hf_bootp_alu_tftp1 ,tvb,optoff+2 ,4,
tvb_get_ipv4(tvb,optoff+2));
proto_tree_add_ipv4(v_tree,hf_bootp_alu_tftp2 ,tvb,optoff+8 ,4,
tvb_get_ipv4(tvb,optoff+8));
}
break;
}
/* PXE protocol 2.1 as described in the intel specs */
if (*vendor_class_id_p != NULL &&
strncmp((const gchar*)*vendor_class_id_p, "PXEClient", strlen("PXEClient")) == 0) {
proto_item_append_text(vti, " (PXEClient)");
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((const gchar*)*vendor_class_id_p, "pktc", strlen("pktc")) == 0) ||
(strncmp((const gchar*)*vendor_class_id_p, "docsis", strlen("docsis")) == 0) ||
(strncmp((const gchar*)*vendor_class_id_p, "OpenCable2.0", strlen("OpenCable2.0")) == 0) ||
(strncmp((const gchar*)*vendor_class_id_p, "CableHome", strlen("CableHome")) == 0))) {
/* CableLabs standard - see www.cablelabs.com/projects */
proto_item_append_text(vti, " (CableLabs)");
optend = optoff + optlen;
while (optoff < optend) {
optoff = dissect_vendor_cablelabs_suboption(v_tree,
tvb, optoff, optend);
}
}
break;
case 52: /* Option Overload */
if (optlen < 1) {
proto_item_append_text(vti, " length isn't >= 1");
break;
}
byte = tvb_get_guint8(tvb, optoff);
proto_item_append_text(vti, " = %s",
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) {
if (byte & OPT_OVERLOAD_FILE) {
proto_tree_add_text (bp_tree, tvb,
FILE_NAME_OFFSET, FILE_NAME_LEN,
"Boot file name option overload");
o52voff = FILE_NAME_OFFSET;
o52eoff = FILE_NAME_OFFSET + FILE_NAME_LEN;
o52at_end = FALSE;
while (o52voff < o52eoff && !o52at_end) {
o52voff += bootp_option(tvb, bp_tree, o52voff,
o52eoff, FALSE, &o52at_end,
dhcp_type_p, vendor_class_id_p,
overload_p);
}
}
if (byte & OPT_OVERLOAD_SNAME) {
proto_tree_add_text (bp_tree, tvb,
SERVER_NAME_OFFSET, SERVER_NAME_LEN,
"Server host name option overload");
o52voff = SERVER_NAME_OFFSET;
o52eoff = SERVER_NAME_OFFSET + SERVER_NAME_LEN;
o52at_end = FALSE;
while (o52voff < o52eoff && !o52at_end) {
o52voff += bootp_option(tvb, bp_tree, o52voff,
o52eoff, FALSE, &o52at_end,
dhcp_type_p, vendor_class_id_p,
overload_p);
}
}
/* The final end option is not in overload */
*overload_p = 0;
}
break;
case 53: /* DHCP Message Type */
if (optlen != 1) {
proto_item_append_text(vti, " length isn't 1");
break;
}
proto_item_append_text(vti, " = DHCP %s",
val_to_str(tvb_get_guint8(tvb, optoff),
opt53_text,
"Unknown Message Type (0x%02x)"));
break;
case 55: /* Parameter Request List */
for (i = 0; i < optlen; i++) {
byte = tvb_get_guint8(tvb, optoff+i);
proto_tree_add_text(v_tree, tvb, optoff+i, 1, "%d = %s",
byte, bootp_get_opt_text(byte));
}
break;
case 60: /* Vendor class identifier */
/*
* XXX - RFC 2132 says this is a string of octets;
* should we check for non-printables?
*/
proto_item_append_text(vti, " = \"%s\"",
tvb_format_stringzpad(tvb, optoff, consumed-2));
if ((tvb_memeql(tvb, optoff, (const guint8*)PACKETCABLE_MTA_CAP10,
strlen(PACKETCABLE_MTA_CAP10)) == 0)
||
(tvb_memeql(tvb, optoff, (const guint8*)PACKETCABLE_MTA_CAP15,
strlen(PACKETCABLE_MTA_CAP10)) == 0))
{
dissect_packetcable_mta_cap(v_tree, tvb, optoff, optlen);
}
else {
if (tvb_memeql(tvb, optoff, (const guint8*)PACKETCABLE_CM_CAP11,
strlen(PACKETCABLE_CM_CAP11)) == 0
||
tvb_memeql(tvb, optoff, (const guint8*)PACKETCABLE_CM_CAP20,
strlen(PACKETCABLE_CM_CAP20)) == 0 )
{
dissect_docsis_cm_cap(v_tree, tvb, optoff, optlen);
}
}
break;
case 61: /* Client Identifier */
case 97: /* Client Identifier (UUID) */
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) {
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 if (optlen == 17 && byte == 0) {
/* Identifier is a UUID */
proto_tree_add_item(v_tree, hf_bootp_client_identifier_uuid,
tvb, optoff + 1, 16, TRUE);
} else {
/* otherwise, it's opaque data */
}
break;
case 63: /* NetWare/IP options (RFC 2242) */
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_item_append_text(vti, " length isn't >= 1");
break;
}
optleft = optlen;
byte = tvb_get_guint8(tvb, optoff);
proto_item_append_text(vti, " = %s",
val_to_str(byte, slpda_vals,
"Unknown (0x%02x)"));
optoff++;
optleft--;
if (byte == 0x80) {
if (optleft == 0)
break;
optoff++;
optleft--;
}
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);
proto_item_append_text(vti, " = %s",
val_to_str(byte, slp_scope_vals,
"Unknown (0x%02x)"));
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_item_append_text(vti, " length isn't >= 3");
break;
}
fqdn_flags = tvb_get_guint8(tvb, optoff);
ft = proto_tree_add_text(v_tree, tvb, optoff, 1, "Flags: 0x%02x", fqdn_flags);
proto_tree_add_item(v_tree, hf_bootp_fqdn_mbz, tvb, optoff, 1, FALSE);
proto_tree_add_item(v_tree, hf_bootp_fqdn_n, tvb, optoff, 1, FALSE);
proto_tree_add_item(v_tree, hf_bootp_fqdn_e, tvb, optoff, 1, FALSE);
proto_tree_add_item(v_tree, hf_bootp_fqdn_o, tvb, optoff, 1, FALSE);
proto_tree_add_item(v_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) {
get_dns_name(tvb, optoff+3, optlen-3, optoff+3, &dns_name);
proto_tree_add_string(v_tree, hf_bootp_fqdn_name,
tvb, optoff+3, optlen-3, dns_name);
} else {
proto_tree_add_item(v_tree, hf_bootp_fqdn_asciiname,
tvb, optoff+3, optlen-3, FALSE);
}
}
break;
case 82: /* Relay Agent Information 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_item_append_text(vti, " = \"%s\"",
tvb_format_stringzpad(tvb, optoff, optlen));
} else {
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 */
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 94: { /* Client network interface identifier */
guint8 id_type;
id_type = tvb_get_guint8(tvb, optoff);
if (id_type == 0x01) {
proto_tree_add_item(v_tree, hf_bootp_client_network_id_major_ver,
tvb, optoff + 1, 1, TRUE);
proto_tree_add_item(v_tree, hf_bootp_client_network_id_minor_ver,
tvb, optoff + 2, 1, TRUE);
}
break;
}
case 90: /* DHCP Authentication */
case 210: /* Was this used for authentication at one time? */
if (optlen < 11) {
proto_item_append_text(vti, " length isn't >= 11");
break;
}
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,
"RDM Replay Detection Value: %" G_GINT64_MODIFIER "x",
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 (*dhcp_type_p && !strcmp(*dhcp_type_p, OPT53_DISCOVER)) {
/* Discover has no Secret ID nor HMAC MD5 Hash */
break;
} else {
if (optlen < 31) {
proto_item_append_text(vti,
" length isn't >= 31");
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;
case 99: /* civic location (RFC 4776) */
optleft = optlen;
if (optleft >= 3)
{
proto_tree_add_text(v_tree, tvb, optoff, 1, "What: %d (%s)",
tvb_get_guint8(tvb, optoff), val_to_str(tvb_get_guint8(tvb, optoff),
civic_address_what_values, "Unknown") );
proto_tree_add_text(v_tree, tvb, optoff + 1, 2, "Country: \"%s\"",
tvb_format_text(tvb, optoff + 1, 2) );
optleft = optleft - 3;
optoff = optoff + 3;
while (optleft >= 2)
{
int catype = tvb_get_guint8(tvb, optoff);
optoff++;
optleft--;
s_option = tvb_get_guint8(tvb, optoff);
optoff++;
optleft--;
if (s_option == 0)
{
proto_tree_add_text(v_tree, tvb, optoff, s_option,
"CAType %d [%s] (l=%d): EMTPY", catype,
val_to_str(catype, civic_address_type_values,
"Unknown"), s_option);
continue;
}
if (optleft >= s_option)
{
proto_tree_add_text(v_tree, tvb, optoff, s_option,
"CAType %d [%s] (l=%d): \"%s\"", catype,
val_to_str(catype, civic_address_type_values,
"Unknown"), s_option,
tvb_format_text(tvb, optoff, s_option));
optoff = optoff + s_option;
optleft = optleft - s_option;
}
else
{
optleft = 0;
proto_tree_add_text(v_tree, tvb, optoff, s_option,
"Error with CAType");
}
}
}
break;
case 121: /* Classless Static Route */
case 249: { /* Classless Static Route (Microsoft) */
int mask_width, significant_octets;
optend = optoff + optlen;
/* minimum length is 5 bytes */
if (optlen < 5) {
proto_item_append_text(vti, " [ERROR: Option length < 5 bytes]");
break;
}
while (optoff < optend) {
mask_width = tvb_get_guint8(tvb, optoff);
/* mask_width <= 32 */
if (mask_width > 32) {
proto_tree_add_text(v_tree, tvb, optoff,
optend - optoff,
"Subnet/MaskWidth-Router: [ERROR: Mask width (%d) > 32]",
mask_width);
break;
}
significant_octets = (mask_width + 7) / 8;
vti = proto_tree_add_text(v_tree, tvb, optoff,
1 + significant_octets + 4,
"Subnet/MaskWidth-Router: ");
optoff++;
/* significant octets + router(4) */
if (optend < optoff + significant_octets + 4) {
proto_item_append_text(vti, "[ERROR: Remaining length (%d) < %d bytes]",
optend - optoff, significant_octets + 4);
break;
}
if(mask_width == 0)
proto_item_append_text(vti, "default");
else {
for(i = 0 ; i < significant_octets ; i++) {
if (i > 0)
proto_item_append_text(vti, ".");
byte = tvb_get_guint8(tvb, optoff++);
proto_item_append_text(vti, "%d", byte);
}
for(i = significant_octets ; i < 4 ; i++)
proto_item_append_text(vti, ".0");
proto_item_append_text(vti, "/%d", mask_width);
}
proto_item_append_text(vti, "-%s",
ip_to_str(tvb_get_ptr(tvb, optoff, 4)));
optoff += 4;
}
break;
}
case 125: { /* V-I Vendor-specific Information */
int enterprise = 0;
int s_end = 0;
int s_option_len = 0;
proto_tree *e_tree = 0;
optend = optoff + optlen;
optleft = optlen;
while (optleft > 0) {
if (optleft < 5) {
proto_tree_add_text(v_tree, tvb, optoff,
optleft, "Vendor-specific Information: malformed option");
break;
}
enterprise = tvb_get_ntohl(tvb, optoff);
vti = proto_tree_add_text(v_tree, tvb, optoff, 4,
"Enterprise-number: %s-%u",
val_to_str( enterprise, sminmpec_values, "Unknown"),
enterprise);
s_option_len = tvb_get_guint8(tvb, optoff + 4);
optoff += 5;
optleft -= 5;
/* Handle DSL Forum TR-111 Option 125 */
if ( enterprise == 3561 ) {
s_end = optoff + s_option_len;
if ( s_end > optend ) {
proto_tree_add_text(v_tree, tvb, optoff, 1,
"no room left in option for enterprise %u data", enterprise);
break;
}
e_tree = proto_item_add_subtree(vti, ett_bootp_option);
while (optoff < s_end) {
optoff = dissect_vendor_tr111_suboption(e_tree,
tvb, optoff, s_end);
}
} else {
/* skip over the data and look for next enterprise number */
optoff += s_option_len;
}
optleft -= s_option_len;
}
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;
proto_item_append_text(vti,
"CableLabs Client Configuration (%d bytes)",
optlen);
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;
}
if (ftype == special)
return consumed;
if (ftype == opaque) {
if (skip_opaque) /* Currently used by PacketCable CCC */
return consumed;
}
switch (ftype) {
case ipv4:
if (optlen != 4) {
proto_item_append_text(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 */
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:
break;
case val_boolean:
if (optlen != 1) {
proto_item_append_text(vti,
" - length isn't 1");
break;
}
tfs = (const struct true_false_string *) bootp_get_opt_data(code);
if(tfs){
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 *) bootp_get_opt_data(code);
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: {
gushort vd;
if (optlen != 2) {
proto_item_append_text(vti,
" - length isn't 2");
break;
}
vs = (const value_string *) bootp_get_opt_data(code);
vd = tvb_get_ntohs(tvb, optoff);
if (vs != NULL) {
proto_item_append_text(vti, " = %s",
val_to_str(vd, vs, "Unknown (%u)"));
} else
proto_item_append_text(vti, " = %u", vd);
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 */
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:
break;
}
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;
int subopt_len, datalen;
guint32 enterprise;
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: /* 1 Agent Circuit ID Sub-option [RFC3046] */
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: /* 2 Agent Remote ID Sub-option [RFC3046] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Agent Remote ID: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
break;
case 3:
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Reserved: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
break;
case 4: /* 4 DOCSIS Device Class Suboption [RFC3256] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"DOCSIS Device Class: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
break;
case 5: /* 5 Link selection Sub-option [RFC3527] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Link selection: %s",
ip_to_str(tvb_get_ptr(tvb, suboptoff, subopt_len)));
break;
case 6: /*Subscriber-ID Suboption [RFC3993] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Subscriber ID: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
break;
case 7: /* 7 RADIUS Attributes Sub-option [RFC4014] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"RADIUS Attributes: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
case 8: /* 8 Authentication Suboption [RFC4030] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Authentication: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
case 9:
while (suboptoff < optend) {
enterprise = tvb_get_ntohl(tvb, suboptoff);
proto_tree_add_text(v_tree, tvb, suboptoff, 4,
"Enterprise-number: %s-%u",
val_to_str( enterprise, sminmpec_values, "Unknown"),
enterprise);
suboptoff += 4;
datalen = tvb_get_guint8(tvb, suboptoff);
proto_tree_add_text(v_tree, tvb, suboptoff, 1,
"Data Length: %u", datalen);
suboptoff++;
proto_tree_add_text(v_tree, tvb, suboptoff, datalen,
"Suboption Data: %s", tvb_bytes_to_str(tvb, suboptoff, datalen));
suboptoff += datalen;
}
break;
case 10: /* 10 Relay Agent Flags [RFC5010] */
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Flags: %s",
tvb_bytes_to_str(tvb, suboptoff, subopt_len));
default:
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"Unknown 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 */ {"eSafe Config File Devices", string, NULL},
/* 16 */ {"Unassigned (CableHome)", special, NULL},
/* 17 */ {"Unassigned (CableHome)", special, NULL},
/* 18 */ {"Video Security Type", string, 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", val_u_long, NULL},
/* 33 */ {"Unassigned (PacketCable)", special, NULL},
/* 34 */ {"Unassigned (PacketCable)", special, NULL},
/* 35 */ {"Unassigned (PacketCable)", special, NULL},
/* 36 */ {"Unassigned (PacketCable)", special, NULL},
/* 37 */ {"Unassigned (PacketCable)", special, NULL},
/* 38 */ {"Unassigned (PacketCable)", special, NULL},
/* 39 */ {"Unassigned (PacketCable)", special, NULL},
/* 40 */ {"Unassigned (PacketCable)", special, NULL},
/* 41 */ {"Unassigned (PacketCable)", special, NULL},
/* 42 */ {"Unassigned (PacketCable)", special, NULL},
/* 43 */ {"Unassigned (PacketCable)", special, NULL},
/* 44 */ {"Unassigned (PacketCable)", special, NULL},
/* 45 */ {"Unassigned (PacketCable)", special, NULL},
/* 46 */ {"Unassigned (PacketCable)", special, NULL},
/* 47 */ {"Unassigned (PacketCable)", special, NULL},
/* 48 */ {"Unassigned (PacketCable)", special, NULL},
/* 49 */ {"Unassigned (PacketCable)", special, NULL},
/* 50 */ {"Unassigned (PacketCable)", special, NULL},
/* *** 51-127: CableLabs *** */
/* 51 */ {"Vendor Name", string, NULL},
/* 52 */ {"CableCARD Capability", special, NULL},
/* 53 */ {"Device Identification (CA)", special, NULL},
/* 54 */ {"Device Identification (X.509)", string, NULL},
/* 55 */ {"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 */
/* CableLabs specs treat 43.8 inconsistently
* as either binary (3b) or string (6b) */
if (subopt_len == 3) {
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_len == 6) {
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
"Suboption %d: OUI = \"%s\"", subopt,
tvb_format_stringzpad(tvb, suboptoff, subopt_len));
} else {
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
"Suboption %d: suboption length isn't 3 or 6", subopt);
}
break;
} 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, suboptoff, 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;
case val_u_long:
if (subopt_len != 4) {
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
"Suboption %d: suboption length isn't 4", subopt);
break;
}
proto_tree_add_text(v_tree, tvb, optoff, subopt_len+2,
"Suboption %d: %s = %u", subopt,
o43cablelabs_opt[subopt].text,
tvb_get_ntohl(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_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 exists 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);
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);
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)));
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)));
} 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");
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: suboption length isn't 1", subopt);
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,
"Suboption %d: %s = Invalid Value %d",
subopt, o63_opt[subopt].text, i);
} else {
proto_tree_add_text(v_tree, tvb, optoff, 3,
"Suboption %d: %s = %s", subopt,
o63_opt[subopt].text,
i == 0 ? tfs->false_string : tfs->true_string);
}
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);
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));
break;
default:
proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,"Unknown suboption %d", subopt);
break;
}
}
optoff += (subopt_len + 2);
return optoff;
}
static int
dissect_vendor_tr111_suboption(proto_tree *v_tree, tvbuff_t *tvb,
int optoff, int optend)
{
int suboptoff = optoff;
guint8 subopt;
guint8 subopt_len;
/* Reference: TR-111 DHCP Option 125 Sub-Option Data Fields
Page 10.
*/
static struct opt_info o125_tr111_opt[]= {
/* 0 */ {"nop", special, NULL}, /* dummy */
/* 1 */ {"DeviceManufacturerOUI", string, NULL},
/* 2 */ {"DeviceSerialNumber", string, NULL},
/* 3 */ {"DeviceProductClass", string, NULL},
/* 4 */ {"GatewayManufacturerOUI", string, NULL},
/* 5 */ {"GatewaySerialNumber", string, NULL},
/* 6 */ {"GatewayProductClass", string, NULL},
};
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++;
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(o125_tr111_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 (o125_tr111_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, o125_tr111_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,
o125_tr111_opt[subopt].text,
tvb_format_stringzpad(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;
}
/* 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_mib_orgs[] = {
{ 0x3030, "CableLabs" },
{ 0x3031, "IETF" },
{ 0x3032, "Reserved" },
{ 0x3033, "Reserved" },
{ 0x3034, "Reserved" },
{ 0x3035, "Reserved" },
{ 0x3036, "Reserved" },
{ 0x3037, "Reserved" },
{ 0x3038, "Reserved" },
{ 0x3039, "Reserved" },
{ 0, NULL }
};
/* DOCSIS Cable Modem device capabilities (option 60). */
#define DOCS_CM_TLV_OFF 12
#define DOCS_CM_CONCAT_SUP 0x3031 /* "01" */
#define DOCS_CM_DOCSIS_VER 0x3032 /* "02" */
#define DOCS_CM_FRAG_SUP 0x3033 /* "03" */
#define DOCS_CM_PHS_SUP 0x3034 /* "04" */
#define DOCS_CM_IGMP_SUP 0x3035 /* "05" */
#define DOCS_CM_PRIV_SUP 0x3036 /* "06" */
#define DOCS_CM_DSAID_SUP 0x3037 /* "07" */
#define DOCS_CM_USID_SUP 0x3038 /* "08" */
#define DOCS_CM_FILT_SUP 0x3039 /* "09" */
#define DOCS_CM_TET_MI 0x3041 /* "0A" */
#define DOCS_CM_TET_MI_LC 0x3061 /* "0a" */
#define DOCS_CM_TET 0x3042 /* "0B" */
#define DOCS_CM_TET_LC 0x3062 /* "0b" */
#define DOCS_CM_DCC_SUP 0x3043 /* "0C" */
#define DOCS_CM_DCC_SUP_LC 0x3063 /* "0c" */
#define DOCS_CM_IPFILT_SUP 0x3044 /* "0D" */
#define DOCS_CM_IPFILT_SUP_LC 0x3064 /* "0d" */
#define DOCS_CM_LLCFILT_SUP 0x3045 /* "0E" */
#define DOCS_CM_LLCFILT_SUP_LC 0x3065 /* "0e" */
static const value_string docs_cm_type_vals[] = {
{ DOCS_CM_CONCAT_SUP, "Concatenation Support" },
{ DOCS_CM_DOCSIS_VER, "DOCSIS Version" },
{ DOCS_CM_FRAG_SUP, "Fragmentation Support" },
{ DOCS_CM_PHS_SUP, "PHS Support" },
{ DOCS_CM_IGMP_SUP, "IGMP Support" },
{ DOCS_CM_PRIV_SUP, "Privacy Support" },
{ DOCS_CM_DSAID_SUP, "Downstream SAID Support" },
{ DOCS_CM_USID_SUP, "Upstream SID Support" },
{ DOCS_CM_FILT_SUP, "Optional Filtering Support" },
{ DOCS_CM_TET_MI, "Transmit Equalizer Taps per Modulation Interval" },
{ DOCS_CM_TET_MI_LC, "Transmit Equalizer Taps per Modulation Interval" },
{ DOCS_CM_TET, "Number of Transmit Equalizer Taps" },
{ DOCS_CM_TET_LC, "Number of Transmit Equalizer Taps" },
{ DOCS_CM_DCC_SUP, "DCC Support" },
{ DOCS_CM_DCC_SUP_LC, "DCC Support" },
{ DOCS_CM_IPFILT_SUP, "IP Filters Support" },
{ DOCS_CM_IPFILT_SUP_LC, "IP Filters Support" },
{ DOCS_CM_LLCFILT_SUP, "LLC Filters Support" },
{ DOCS_CM_LLCFILT_SUP_LC, "LLC Filters Support" },
{ 0, NULL }
};
static const value_string docs_cm_version_vals[] = {
{ 0x3030, "DOCSIS 1.0" },
{ 0x3031, "DOCSIS 1.1" },
{ 0x3032, "DOCSIS 2.0" },
{ 0, NULL }
};
static const value_string docs_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 }
};
#define PKT_MDC_MIB_CL 0x3030
static const value_string pkt_mdc_cl_mib_vals[] = {
{ 1 << 0, "PacketCable 1.5 MTA MIB" },
{ 1 << 1, "PacketCable 1.5 Signaling MIB" },
{ 1 << 2, "PacketCable 1.5 Management Event MIB" },
{ 1 << 3, "PacketCable 1.5 MTA Extension MIB" },
{ 1 << 4, "PacketCable 1.5 Signaling Extension MIB" },
{ 1 << 5, "PacketCable 1.5 MEM Extension MIB" },
{ 1 << 6, "Reserved" },
{ 1 << 7, "Reserved" },
{ 0, NULL }
};
#define PKT_MDC_MIB_IETF 0x3031
static const value_string pkt_mdc_ietf_mib_vals[] = {
{ 1 << 0, "IETF MTA MIB" },
{ 1 << 1, "IETF Signaling MIB" },
{ 1 << 2, "IETF Management Event MIB" },
{ 1 << 3, "Reserved" },
{ 1 << 4, "Reserved" },
{ 1 << 5, "Reserved" },
{ 1 << 6, "Reserved" },
{ 1 << 7, "Reserved" },
{ 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;
int off = PKT_MDC_TLV_OFF + voff;
int subopt_off, max_len;
guint tlv_len, i, mib_val;
guint8 asc_val[3] = " ", flow_val_str[5];
char bit_fld[64];
proto_item *ti, *mib_ti;
proto_tree *subtree, *subtree2;
tvb_memcpy (tvb, asc_val, off, 2);
if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1 || tlv_len > 0xff) {
proto_tree_add_text(v_tree, tvb, off, len - off,
"Bogus length: %s", asc_val);
return;
} else {
proto_tree_add_uint_format_value(v_tree, hf_bootp_pkt_mtacap_len, tvb, off, 2,
tlv_len, "%d", tlv_len);
off += 2;
while (off - voff < len) {
/* Type */
raw_val = tvb_get_ntohs (tvb, off);
/* Length */
tvb_memcpy(tvb, asc_val, off + 2, 2);
if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1 || tlv_len < 1) {
proto_tree_add_text(v_tree, tvb, off, len - off,
"[Bogus length: %s]", asc_val);
return;
} else {
/* Value(s) */
ti = proto_tree_add_text(v_tree,
tvb, off, (tlv_len * 2) + 4,
"0x%s: %s = ",
tvb_format_text(tvb, off, 2),
val_to_str(raw_val, pkt_mdc_type_vals, "unknown"));
switch (raw_val) {
case PKT_MDC_VERSION:
raw_val = tvb_get_ntohs(tvb, off + 4);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, pkt_mdc_version_vals, "Reserved"),
tvb_format_stringzpad(tvb, off + 4, 2) );
break;
case PKT_MDC_TEL_END:
case PKT_MDC_IF_INDEX:
proto_item_append_text(ti,
"%s",
tvb_format_stringzpad(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);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, pkt_mdc_boolean_vals, "unknown"),
tvb_format_stringzpad(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) );
proto_item_append_text(ti,
"%s%s (%s)",
plurality(i + 1, "", ", "),
val_to_str(raw_val, pkt_mdc_codec_vals, "unknown"),
tvb_format_stringzpad(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((gchar*)flow_val_str, NULL, 16);
proto_item_append_text(ti,
"0x%04lx", flow_val);
break;
case PKT_MDC_T38_VERSION:
raw_val = tvb_get_ntohs(tvb, off + 4);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, pkt_mdc_t38_version_vals, "unknown"),
tvb_format_stringzpad(tvb, off + 4, 2) );
break;
case PKT_MDC_T38_EC:
raw_val = tvb_get_ntohs(tvb, off + 4);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, pkt_mdc_t38_ec_vals, "unknown"),
tvb_format_stringzpad(tvb, off + 4, 2) );
break;
case PKT_MDC_MIBS:
break;
case PKT_MDC_VENDOR_TLV:
default:
proto_item_append_text(ti,
"%s",
tvb_format_stringzpad(tvb, off + 4, tlv_len * 2) );
break;
}
}
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(subtree, tvb, off + 4, 4, "%s%s",
bit_fld, pkt_mdc_supp_flow_vals[i].strptr);
}
}
} else if (raw_val == PKT_MDC_MIBS) {
/* 17 06 02 00 38 02 01 07 */
subopt_off = off + 4;
max_len = subopt_off + (tlv_len * 2);
while (subopt_off < max_len) {
raw_val = tvb_get_ntohs(tvb, subopt_off);
if (raw_val != 0x3032) { /* We only know how to handle a length of 2 */
tvb_memcpy(tvb, asc_val, subopt_off, 2);
proto_tree_add_text(subtree, tvb, subopt_off, 2,
"[Bogus length: %s]", asc_val);
return;
}
subopt_off += 2;
raw_val = tvb_get_ntohs(tvb, subopt_off);
tvb_memcpy(tvb, asc_val, subopt_off, 2);
mib_ti = proto_tree_add_text(subtree, tvb, subopt_off, 2, "%s (%s)",
val_to_str(raw_val, pkt_mdc_mib_orgs, "Unknown"), asc_val);
if (subopt_off > off + 4 + 2) {
proto_item_append_text(ti, ", ");
}
proto_item_append_text(ti, "%s", val_to_str(raw_val, pkt_mdc_mib_orgs, "Unknown"));
subopt_off += 2;
tvb_memcpy(tvb, asc_val, subopt_off, 2);
if (sscanf((gchar*)asc_val, "%x", &mib_val) != 1) {
proto_tree_add_text(v_tree, tvb, subopt_off, 2,
"[Bogus bitfield: %s]", asc_val);
return;
}
switch (raw_val) {
case PKT_MDC_MIB_CL:
subtree2 = proto_item_add_subtree(mib_ti, ett_bootp_option);
for (i = 0; i < 8; i++) {
if (mib_val & pkt_mdc_cl_mib_vals[i].value) {
decode_bitfield_value(bit_fld, mib_val, pkt_mdc_cl_mib_vals[i].value, 8);
proto_tree_add_text(subtree2, tvb, subopt_off, 2,
"%s%s", bit_fld, pkt_mdc_cl_mib_vals[i].strptr);
}
}
break;
case PKT_MDC_MIB_IETF:
subtree2 = proto_item_add_subtree(mib_ti, ett_bootp_option);
for (i = 0; i < 8; i++) {
if (mib_val & pkt_mdc_ietf_mib_vals[i].value) {
decode_bitfield_value(bit_fld, mib_val, pkt_mdc_ietf_mib_vals[i].value, 8);
proto_tree_add_text(subtree2, tvb, subopt_off, 2,
"%s%s", bit_fld, pkt_mdc_ietf_mib_vals[i].strptr);
}
}
break;
default:
break;
}
subopt_off += 2;
}
}
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;
int off = DOCS_CM_TLV_OFF + voff;
guint tlv_len, i;
guint8 asc_val[4] = " ";
proto_item *ti;
tvb_memcpy (tvb, asc_val, off, 2);
if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1 || 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_value(v_tree, hf_bootp_docsis_cmcap_len, tvb, off, 2,
tlv_len, "%d", tlv_len);
off += 2;
while (off - voff < len) {
/* Type */
raw_val = tvb_get_ntohs (tvb, off);
/* Length */
tvb_memcpy(tvb, asc_val, off + 2, 2);
if (sscanf((gchar*)asc_val, "%x", &tlv_len) != 1 || tlv_len > 0xff) {
proto_tree_add_text(v_tree, tvb, off, len - off,
"[Bogus length: %s]", asc_val);
return;
} else {
/* Value(s) */
ti = proto_tree_add_text(v_tree, tvb, off,
(tlv_len * 2) + 4,
"0x%s: %s = ",
tvb_format_text(tvb, off, 2),
val_to_str(raw_val, docs_cm_type_vals, "unknown"));
switch (raw_val) {
case DOCS_CM_CONCAT_SUP:
case DOCS_CM_FRAG_SUP:
case DOCS_CM_PHS_SUP:
case DOCS_CM_IGMP_SUP:
case DOCS_CM_DCC_SUP:
case DOCS_CM_DCC_SUP_LC:
for (i = 0; i < tlv_len; i++) {
raw_val = tvb_get_ntohs(tvb, off + 4 + (i * 2) );
proto_item_append_text(ti,
"%s%s (%s)",
plurality(i + 1, "", ", "),
val_to_str(raw_val, pkt_mdc_boolean_vals, "unknown"),
tvb_format_text(tvb, off + 4 + (i * 2), 2) );
}
break;
case DOCS_CM_DOCSIS_VER:
raw_val = tvb_get_ntohs(tvb, off + 4);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, docs_cm_version_vals, "Reserved"),
tvb_format_text(tvb, off + 4, 2) );
break;
case DOCS_CM_PRIV_SUP:
raw_val = tvb_get_ntohs(tvb, off + 4);
proto_item_append_text(ti,
"%s (%s)",
val_to_str(raw_val, docs_cm_privacy_vals, "Reserved"),
tvb_format_text(tvb, off + 4, 2) );
break;
case DOCS_CM_DSAID_SUP:
case DOCS_CM_USID_SUP:
case DOCS_CM_TET_MI:
case DOCS_CM_TET_MI_LC:
case DOCS_CM_TET:
case DOCS_CM_TET_LC:
tvb_memcpy (tvb, asc_val, off + 4, 2);
raw_val = strtoul((gchar*)asc_val, NULL, 16);
proto_item_append_text(ti,
"%lu", raw_val);
break;
case DOCS_CM_IPFILT_SUP:
case DOCS_CM_IPFILT_SUP_LC:
case DOCS_CM_LLCFILT_SUP:
case DOCS_CM_LLCFILT_SUP_LC:
tvb_memcpy (tvb, asc_val, off + 4, 4);
raw_val = strtoul((gchar*)asc_val, NULL, 16);
proto_item_append_text(ti,
"%lu", raw_val);
break;
case DOCS_CM_FILT_SUP:
tvb_memcpy (tvb, asc_val, off + 4, 2);
raw_val = strtoul((gchar*)asc_val, NULL, 16);
if (raw_val & 0x01)
proto_item_append_text(ti,
"802.1p filtering");
if (raw_val & 0x02) {
if (raw_val & 0x01)
proto_item_append_text(ti, ", ");
proto_item_append_text(ti,
"802.1Q filtering");
}
if (!(raw_val & 0x03))
proto_item_append_text(ti,
"None");
proto_item_append_text(ti,
" (0x%02lx)", raw_val);
break;
}
}
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;
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++;
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"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:
proto_item_append_text(vti, "%s (%u byte%s)",
tvb_format_stringzpad(tvb, suboptoff, subopt_len),
subopt_len,
plurality(subopt_len, "", "s") );
suboptoff += subopt_len;
break;
case PKT_CCC_TGT_FLAG:
if (suboptoff+1 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
fetch_tgt = tvb_get_guint8(tvb, suboptoff);
proto_item_append_text(vti, "%s (%u byte%s%s)",
fetch_tgt ? "Yes" : "No",
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 1 ? " [Invalid]" : "");
suboptoff += subopt_len;
break;
case PKT_CCC_PROV_TIMER:
if (suboptoff+1 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
timer_val = tvb_get_guint8(tvb, suboptoff);
proto_item_append_text(vti, "%u%s (%u byte%s%s)", timer_val,
timer_val > 30 ? " [Invalid]" : "",
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 1 ? " [Invalid]" : "");
suboptoff += subopt_len;
break;
case PKT_CCC_AS_KRB:
if (suboptoff+12 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 12 ? " [Invalid]" : "");
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_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 12 ? " [Invalid]" : "");
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_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
ticket_ctl = tvb_get_guint8(tvb, suboptoff);
proto_item_append_text(vti, "%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]" : "");
suboptoff += subopt_len;
break;
default:
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;
guint32 ipv4addr;
guint8 prov_type, fetch_tgt, timer_val;
guint16 sec_tcm;
proto_tree *pkt_s_tree;
proto_item *vti;
int max_timer_val = 255, i;
const char *dns_name;
char bit_fld[24];
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++;
vti = proto_tree_add_text(v_tree, tvb, optoff, subopt_len + 2,
"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_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
ipv4addr = tvb_get_ipv4(tvb, suboptoff);
proto_item_append_text(vti, "%s (%u byte%s%s)",
ip_to_str((guint8 *)&ipv4addr),
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 4 ? " [Invalid]" : "");
suboptoff += subopt_len;
break;
case PKT_CCC_IETF_PROV_SRV:
if (suboptoff+1 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
prov_type = tvb_get_guint8(tvb, suboptoff);
suboptoff += 1;
switch (prov_type) {
case 0:
get_dns_name(tvb, suboptoff, subopt_len, suboptoff, &dns_name);
proto_item_append_text(vti, "%s (%u byte%s)", dns_name,
subopt_len - 1, plurality(subopt_len, "", "s") );
break;
case 1:
if (suboptoff+4 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
ipv4addr = tvb_get_ipv4(tvb, suboptoff);
proto_item_append_text(vti, "%s (%u byte%s%s)",
ip_to_str((guint8 *)&ipv4addr),
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 5 ? " [Invalid]" : "");
break;
default:
proto_item_append_text(vti, "Invalid type: %u (%u byte%s)",
prov_type,
subopt_len,
plurality(subopt_len, "", "s") );
break;
}
suboptoff += subopt_len - 1;
break;
case PKT_CCC_IETF_AS_KRB:
if (suboptoff+12 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 12 ? " [Invalid]" : "");
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:
proto_item_append_text(vti, "(%u byte%s%s)", subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 12 ? " [Invalid]" : "");
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 */
get_dns_name(tvb, suboptoff, subopt_len, suboptoff, &dns_name);
proto_item_append_text(vti, "%s (%u byte%s)", dns_name,
subopt_len, plurality(subopt_len, "", "s") );
suboptoff += subopt_len;
break;
case PKT_CCC_TGT_FLAG:
if (suboptoff+1 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
fetch_tgt = tvb_get_guint8(tvb, suboptoff);
proto_item_append_text(vti, "%s (%u byte%s%s)",
fetch_tgt ? "Yes" : "No",
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 1 ? " [Invalid]" : "");
suboptoff += 1;
break;
case PKT_CCC_PROV_TIMER:
if (suboptoff+1 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
if (revision == PACKETCABLE_CCC_DRAFT5)
max_timer_val = 30;
timer_val = tvb_get_guint8(tvb, suboptoff);
proto_item_append_text(vti, "%u%s (%u byte%s%s)", timer_val,
timer_val > max_timer_val ? " [Invalid]" : "",
subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 1 ? " [Invalid]" : "");
suboptoff += 1;
break;
case PKT_CCC_IETF_SEC_TKT:
if (suboptoff+2 > optend) {
proto_item_append_text(vti,
"no room left in option for suboption value");
return (optend);
}
sec_tcm = tvb_get_ntohs(tvb, suboptoff);
proto_item_append_text(vti, "0x%04x (%u byte%s%s)", sec_tcm, subopt_len,
plurality(subopt_len, "", "s"),
subopt_len != 2 ? " [Invalid]" : "");
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:
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;
proto_item *ti;
proto_tree *flag_tree;
proto_item *fi, *hidden_item;
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, secs;
int offset_delta;
guint8 overload = 0; /* DHCP option overload */
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;
}
}
voff = VENDOR_INFO_OFFSET;
/* rfc2132 says it SHOULD exist, not that it MUST exist */
if (tvb_bytes_exist(tvb, voff, 4) &&
(tvb_get_ntohl(tvb, voff) == 0x63825363)) {
voff += 4;
} else {
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) {
offset_delta = bootp_option(tvb, 0, tmpvoff, eoff, TRUE, &at_end,
&dhcp_type, &vendor_class_id, &overload);
if (offset_delta <= 0) {
THROW(ReportedBoundsError);
}
tmpvoff += offset_delta;
}
/*
* 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));
tap_queue_packet( bootp_dhcp_tap, pinfo, 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.
*/
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_value(bp_tree, hf_bootp_hw_type, tvb,
1, 1,
htype,
"%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);
/*
* Windows (98, XP and Vista tested) sends the "secs" value on
* the wire formatted as little-endian. See if the LE value
* makes sense.
*/
secs = tvb_get_letohs(tvb, 8);
if (secs > 0 && secs <= 0xff) {
proto_tree_add_uint_format(bp_tree, hf_bootp_secs, tvb,
8, 2, secs, "Seconds elapsed: %u (little endian bug?)", secs);
} else {
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 == ARPHRD_ETHER || htype == ARPHRD_IEEE802)
&& hlen == 6)
proto_tree_add_ether(bp_tree, hf_bootp_hw_ether_addr, tvb, 28, 6, haddr);
else
/* The chaddr element is 16 bytes in length,
although only the first hlen bytes are used */
proto_tree_add_bytes_format_value(bp_tree, hf_bootp_hw_addr, tvb,
28, 16,
haddr,
"%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, SERVER_NAME_OFFSET) != '\0') {
if (overload & OPT_OVERLOAD_SNAME) {
proto_tree_add_text (bp_tree, tvb,
SERVER_NAME_OFFSET, SERVER_NAME_LEN,
"Server name option overloaded by DHCP");
} else {
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,
(const gchar*)tvb_get_ptr(tvb, SERVER_NAME_OFFSET, 1),
"Server host name not given");
}
/* Boot file */
if (tvb_get_guint8(tvb, FILE_NAME_OFFSET) != '\0') {
if (overload & OPT_OVERLOAD_FILE) {
proto_tree_add_text (bp_tree, tvb,
FILE_NAME_OFFSET, FILE_NAME_LEN,
"Boot file name option overloaded by DHCP");
} else {
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,
(const gchar*)tvb_get_ptr(tvb, FILE_NAME_OFFSET, 1),
"Boot file name not given");
}
voff = VENDOR_INFO_OFFSET;
if (dhcp_type != NULL) {
hidden_item = proto_tree_add_boolean(bp_tree, hf_bootp_dhcp, tvb, 0, 0, 1);
PROTO_ITEM_SET_HIDDEN(hidden_item);
}
if (tvb_bytes_exist(tvb, voff, 4) &&
(tvb_get_ntohl(tvb, voff) == 0x63825363)) {
ip_addr = tvb_get_ipv4(tvb, voff);
proto_tree_add_ipv4_format_value(bp_tree, hf_bootp_cookie, tvb,
voff, 4, ip_addr, "(OK)");
voff += 4;
} else {
proto_tree_add_text(bp_tree, tvb,
voff, 64, "Bootp vendor specific options");
voff += 64;
}
at_end = FALSE;
while (voff < eoff && !at_end) {
offset_delta = bootp_option(tvb, bp_tree, voff, eoff, FALSE, &at_end,
&dhcp_type, &vendor_class_id, &overload);
if (offset_delta <= 0) {
THROW(ReportedBoundsError);
}
voff += offset_delta;
}
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_STRING,
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,
{ "MTA DC Length", "bootp.vendor.pktc.mtacap_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
"PacketCable MTA Device Capabilities Length", HFILL }},
{ &hf_bootp_docsis_cmcap_len,
{ "CM DC Length", "bootp.vendor.docsis.cmcap_len",
FT_UINT8, BASE_DEC, NULL, 0x0,
"DOCSIS Cable Modem Device Capabilities Length", HFILL }},
{ &hf_bootp_alu_vid,
{ "Voice VLAN ID", "bootp.vendor.alu.vid",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Alcatel-Lucent VLAN ID to define Voice VLAN", HFILL }},
{ &hf_bootp_alu_tftp1,
{ "Spatial Redundancy TFTP1", "bootp.vendor.alu.tftp1" ,FT_IPv4,
BASE_NONE, NULL, 0x0,
"", HFILL }},
{ &hf_bootp_alu_tftp2,
{ "Spatial Redundancy TFTP2", "bootp.vendor.alu.tftp2" ,FT_IPv4,
BASE_NONE, NULL, 0x0,
"", HFILL }},
{ &hf_bootp_client_identifier_uuid,
{ "Client Identifier (UUID)", "bootp.client_id_uuid",
FT_GUID, BASE_NONE, NULL, 0x0,
"Client Machine Identifier (UUID)", HFILL }},
{ &hf_bootp_client_network_id_major_ver,
{ "Client Network ID Major Version", "bootp.client_network_id_major",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Client Machine Identifier, Major Version", HFILL }},
{ &hf_bootp_client_network_id_minor_ver,
{ "Client Network ID Minor Version", "bootp.client_network_id_minor",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Client Machine Identifier, Major Version", HFILL }},
{ &hf_bootp_option_type,
{ "Option", "bootp.option.type",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Bootp/Dhcp option type", HFILL }},
{ &hf_bootp_option_length,
{ "Length", "bootp.option.length",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Bootp/Dhcp option length", HFILL }},
{ &hf_bootp_option_value,
{ "Value", "bootp.option.value",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Bootp/Dhcp option value", 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");
/* Allow dissector to find be found by name. */
register_dissector("bootp", dissect_bootp, proto_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);
}
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