nexmon – Rev 1
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/* packet-dhcpv6.c
* Routines for DHCPv6 packet disassembly
* Copyright 2004, Nicolas DICHTEL - 6WIND - <nicolas.dichtel@6wind.com>
* Jun-ichiro itojun Hagino <itojun@iijlab.net>
* IItom Tsutomu MIENO <iitom@utouto.com>
* SHIRASAKI Yasuhiro <yasuhiro@gnome.gr.jp>
* Tony Lindstrom <tony.lindstrom@ericsson.com>
* Copyright 2012, Jerome LAFORGE <jerome.laforge@gmail.com>
*
* The information used comes from:
* RFC3315.txt (DHCPv6)
* RFC3319.txt (SIP options)
* RFC3633.txt (Prefix options)
* RFC3646.txt (DNS servers/domains)
* RFC3898.txt (NIS options)
* RFC4075.txt (Simple Network Time Protocol Option); Deprecated as of RFC 5908
* RFC4242.txt (Information Refresh Time Option)
* RFC4280.txt (Broadcast and Multicast Control Servers Options)
* RFC4649.txt (Remote ID option)
* RFC4704.txt (Client FQDN)
* RFC5007.txt (DHCPv6 Leasequery)
* RFC5417.txt (CAPWAP Access Controller DHCP Option)
* RFC5460.txt (DHCPv6 Bulk Leasequery)
* RFC5908.txt (Network Time Protocol (NTP) Server Option)
* RFC6334.txt (Dual-Stack Lite Option)
* RFC6603.txt (Prefix Exclude Option)
* draft-ietf-dhc-dhcpv6-opt-timeconfig-03.txt
* draft-ietf-dhc-dhcpv6-opt-lifetime-00.txt
* CL-SP-CANN-DHCP-Reg-I10-130808.pdf
*
* Note that protocol constants are still subject to change, based on IANA
* assignment decisions.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/sminmpec.h>
#include <epan/expert.h>
#include <epan/prefs.h>
#include <epan/to_str.h>
#include <epan/arptypes.h>
#include <wsutil/str_util.h>
#include "packet-tcp.h"
#include "packet-arp.h"
void proto_register_dhcpv6(void);
void proto_reg_handoff_dhcpv6(void);
static gboolean dhcpv6_bulk_leasequery_desegment = TRUE;
static gboolean cablelabs_interface_id = FALSE;
static int proto_dhcpv6 = -1;
static int proto_dhcpv6_bulk_leasequery = -1;
static int hf_dhcpv6_msgtype = -1;
static int hf_clientfqdn_reserved = -1;
static int hf_clientfqdn_n = -1;
static int hf_clientfqdn_o = -1;
static int hf_clientfqdn_s = -1;
static int hf_option_type = -1;
static int hf_option_length = -1;
static int hf_option_value = -1;
static int hf_remoteid_enterprise = -1;
static int hf_vendoropts_enterprise = -1;
static int hf_duid_bytes = -1;
static int hf_duid_type = -1;
static int hf_duidllt_time = -1;
static int hf_duidllt_link_layer_addr = -1;
static int hf_duidllt_hwtype = -1;
static int hf_duidll_hwtype = -1;
static int hf_duiden_enterprise = -1;
static int hf_duiden_identifier = -1;
static int hf_duidll_link_layer_addr = -1;
static int hf_duiduuid_bytes = -1;
static int hf_iaid = -1;
static int hf_iaid_t1 = -1;
static int hf_iaid_t2 = -1;
static int hf_iata = -1;
static int hf_iaaddr_ip = -1;
static int hf_iaaddr_pref_lifetime = -1;
static int hf_iaaddr_valid_lifetime = -1;
static int hf_requested_option_code = -1;
static int hf_option_preference = -1;
static int hf_elapsed_time = -1;
static int hf_auth_protocol = -1;
static int hf_auth_algorithm = -1;
static int hf_auth_rdm = -1;
static int hf_auth_replay_detection = -1;
static int hf_auth_info = -1;
static int hf_opt_unicast = -1;
static int hf_opt_status_code = -1;
static int hf_opt_status_msg = -1;
static int hf_vendorclass_enterprise = -1;
static int hf_vendorclass_data = -1;
static int hf_vendoropts_enterprise_option_code = -1;
static int hf_vendoropts_enterprise_option_length = -1;
static int hf_vendoropts_enterprise_option_data = -1;
static int hf_interface_id = -1;
static int hf_reconf_msg = -1;
static int hf_sip_server_domain_search_fqdn = -1;
static int hf_sip_server_a = -1;
static int hf_dns_servers = -1;
static int hf_domain_search_list_fqdn = -1;
static int hf_nis_servers = -1;
static int hf_nisp_servers = -1;
static int hf_nis_fqdn = -1;
static int hf_nisp_fqdn = -1;
static int hf_sntp_servers = -1;
static int hf_opt_lifetime = -1;
static int hf_bcmcs_servers_fqdn = -1;
static int hf_bcmcs_servers_a = -1;
static int hf_remoteid_enterprise_id = -1;
static int hf_subscriber_id = -1;
static int hf_client_fqdn = -1;
static int hf_pana_agent = -1;
static int hf_opt_timezone = -1;
static int hf_opt_tzdb = -1;
static int hf_lq_query = -1;
static int hf_lq_query_link_address = -1;
static int hf_clt_time = -1;
static int hf_lq_relay_data_peer_addr = -1;
static int hf_lq_relay_data_msg = -1;
static int hf_lq_client_link = -1;
static int hf_capwap_ac_v6 = -1;
static int hf_aftr_name = -1;
static int hf_iaprefix_pref_lifetime = -1;
static int hf_iaprefix_valid_lifetime = -1;
static int hf_iaprefix_pref_len = -1;
static int hf_iaprefix_pref_addr = -1;
static int hf_mip6_ha = -1;
static int hf_mip6_hoa = -1;
static int hf_nai = -1;
static int hf_pd_exclude_pref_len = -1;
static int hf_pd_exclude_subnet_id = -1;
static int hf_dhcpv6_hopcount = -1;
static int hf_dhcpv6_xid = -1;
static int hf_dhcpv6_peeraddr = -1;
static int hf_dhcpv6_linkaddr = -1;
static int hf_option_ntpserver_type = -1;
static int hf_option_ntpserver_length = -1;
static int hf_option_ntpserver_addr = -1;
static int hf_option_ntpserver_mc_addr = -1;
static int hf_option_ntpserver_fqdn = -1;
static int hf_packetcable_ccc_suboption = -1;
static int hf_packetcable_ccc_pri_dhcp = -1;
static int hf_packetcable_ccc_sec_dhcp = -1;
static int hf_packetcable_cccV6_suboption = -1;
static int hf_packetcable_cccV6_pri_dss = -1;
static int hf_packetcable_cccV6_sec_dss = -1;
static int hf_packetcable_cccV6_prov_srv_type = -1;
static int hf_packetcable_cccV6_prov_srv_fqdn = -1;
static int hf_packetcable_cccV6_prov_srv_ipv6 = -1;
static int hf_packetcable_cccV6_as_krb_nominal_timeout = -1;
static int hf_packetcable_cccV6_as_krb_max_timeout = -1;
static int hf_packetcable_cccV6_as_krb_max_retry_count = -1;
static int hf_packetcable_cccV6_ap_krb_nominal_timeout = -1;
static int hf_packetcable_cccV6_ap_krb_max_timeout = -1;
static int hf_packetcable_cccV6_ap_krb_max_retry_count = -1;
static int hf_packetcable_cccV6_krb_realm = -1;
static int hf_packetcable_cccV6_tgt_flag = -1;
static int hf_packetcable_cccV6_tgt_flag_fetch = -1;
static int hf_packetcable_cccV6_prov_timer = -1;
static int hf_packetcable_cccV6_sec_tcm = -1;
static int hf_packetcable_cccV6_sec_tcm_provisioning_server = -1;
static int hf_packetcable_cccV6_sec_tcm_call_manager_server = -1;
static int hf_cablelabs_opts = -1;
static int hf_modem_capabilities_encoding_type = -1;
static int hf_eue_capabilities_encoding_type = -1;
static int hf_capabilities_encoding_length = -1;
static int hf_capabilities_encoding_bytes = -1;
static int hf_capabilities_encoding_number = -1;
static int hf_cablelabs_ipv6_server = -1;
static int hf_cablelabs_docsis_version_number = -1;
static int hf_cablelabs_interface_id = -1;
static int hf_cablelabs_interface_id_link_address = -1;
static gint ett_dhcpv6 = -1;
static gint ett_dhcpv6_option = -1;
static gint ett_dhcpv6_option_vsoption = -1;
static gint ett_dhcpv6_vendor_option = -1;
static gint ett_dhcpv6_pkt_option = -1;
static gint ett_dhcpv6_netserver_option = -1;
static gint ett_dhcpv6_tlv5_type = -1;
static gint ett_dhcpv6_sip_server_domain_search_list_option = -1;
static gint ett_dhcpv6_dns_domain_search_list_option = -1;
static gint ett_dhcpv6_nis_domain_name_option = -1;
static gint ett_dhcpv6_nisp_domain_name_option = -1;
static gint ett_dhcpv6_bcmcs_servers_domain_search_list_option = -1;
static expert_field ei_dhcpv6_bogus_length = EI_INIT;
static expert_field ei_dhcpv6_malformed_option = EI_INIT;
static expert_field ei_dhcpv6_no_suboption_len = EI_INIT;
static expert_field ei_dhcpv6_invalid_time_value = EI_INIT;
static expert_field ei_dhcpv6_invalid_type = EI_INIT;
static expert_field ei_dhcpv6_malformed_dns = EI_INIT;
static expert_field ei_dhcpv6_error_hopcount = EI_INIT;
static int hf_dhcpv6_bulk_leasequery_size = -1;
static int hf_dhcpv6_bulk_leasequery_msgtype = -1;
static int hf_dhcpv6_bulk_leasequery_reserved = -1;
static int hf_dhcpv6_bulk_leasequery_trans_id = -1;
static gint ett_dhcpv6_bulk_leasequery = -1;
static gint ett_dhcpv6_bulk_leasequery_options = -1;
static expert_field ei_dhcpv6_bulk_leasequery_bad_query_type = EI_INIT;
static expert_field ei_dhcpv6_bulk_leasequery_no_lq_relay_data = EI_INIT;
static expert_field ei_dhcpv6_bulk_leasequery_bad_msg_type = EI_INIT;
static dissector_handle_t dhcpv6_handle;
#define UDP_PORT_DHCPV6_DOWNSTREAM 546
#define UDP_PORT_DHCPV6_UPSTREAM 547
#define DHCPV6_LEASEDURATION_INFINITY 0xffffffff
#define HOP_COUNT_LIMIT 32
#define SOLICIT 1
#define ADVERTISE 2
#define REQUEST 3
#define CONFIRM 4
#define RENEW 5
#define REBIND 6
#define REPLY 7
#define RELEASE 8
#define DECLINE 9
#define RECONFIGURE 10
#define INFORMATION_REQUEST 11
#define RELAY_FORW 12
#define RELAY_REPLY 13
#define LEASEQUERY 14
#define LEASEQUERY_REPLY 15
#define LEASEQUERY_DONE 16
#define LEASEQUERY_DATA 17
#define RECONFIGURE_REQUEST 18
#define RECONFIGURE_REPLY 19
#define OPTION_CLIENTID 1
#define OPTION_SERVERID 2
#define OPTION_IA_NA 3
#define OPTION_IA_TA 4
#define OPTION_IAADDR 5
#define OPTION_ORO 6
#define OPTION_PREFERENCE 7
#define OPTION_ELAPSED_TIME 8
#define OPTION_RELAY_MSG 9
/* #define OPTION_SERVER_MSG 10 */
#define OPTION_AUTH 11
#define OPTION_UNICAST 12
#define OPTION_STATUS_CODE 13
#define OPTION_RAPID_COMMIT 14
#define OPTION_USER_CLASS 15
#define OPTION_VENDOR_CLASS 16
#define OPTION_VENDOR_OPTS 17
#define OPTION_INTERFACE_ID 18
#define OPTION_RECONF_MSG 19
#define OPTION_RECONF_ACCEPT 20
#define OPTION_SIP_SERVER_D 21
#define OPTION_SIP_SERVER_A 22
#define OPTION_DNS_SERVERS 23
#define OPTION_DOMAIN_LIST 24 /* RFC 3646 */
#define OPTION_IA_PD 25 /* RFC 3633 */
#define OPTION_IAPREFIX 26 /* RFC 3633 */
#define OPTION_NIS_SERVERS 27
#define OPTION_NISP_SERVERS 28
#define OPTION_NIS_DOMAIN_NAME 29
#define OPTION_NISP_DOMAIN_NAME 30
#define OPTION_SNTP_SERVERS 31
#define OPTION_LIFETIME 32
#define OPTION_BCMCS_SERVER_D 33
#define OPTION_BCMCS_SERVER_A 34
/* 35 - Unassigned */
#define OPTION_GEOCONF_CIVIC 36
#define OPTION_REMOTE_ID 37
#define OPTION_SUBSCRIBER_ID 38
#define OPTION_CLIENT_FQDN 39
#define OPTION_PANA_AGENT 40
#define OPTION_TIME_ZONE 41
#define OPTION_TZDB 42
#define OPTION_ERO 43
#define OPTION_LQ_QUERY 44
#define OPTION_CLIENT_DATA 45
#define OPTION_CLT_TIME 46
#define OPTION_LQ_RELAY_DATA 47
#define OPTION_LQ_CLIENT_LINK 48
#define OPTION_MIP6_HNIDF 49
#define OPTION_MIP6_VDINF 50
#define OPTION_V6_LOST 51
#define OPTION_CAPWAP_AC_V6 52
#define OPTION_RELAYID 53
#define OPTION_IPV6_ADDRESS_MOS 54 /* OPTION-IPv6_Address-MoS */
#define OPTION_IPV6_FQDN_MOS 55 /* OPTION-IPv6_FQDN-MoS */
#define OPTION_NTP_SERVER 56
#define OPTION_V6_ACCESS_DOMAIN 57
#define OPTION_SIP_UA_CS_LIST 58
#define OPTION_BOOTFILE_URL 59 /* OPT_BOOTFILE_URL */
#define OPTION_BOOTFILE_PARAM 60 /* OPT_BOOTFILE_PARAM */
#define OPTION_CLIENT_ARCH_TYPE 61
#define OPTION_NII 62
#define OPTION_GEOLOCATION 63
#define OPTION_AFTR_NAME 64 /* RFC 6334 */
#define OPTION_ERP_LOCAL_DOMAIN_NAME 65
#define OPTION_RSOO 66
#define OPTION_PD_EXCLUDE 67
#define OPTION_VSS 68
#define OPTION_MIP6_IDINF 69
#define OPTION_MIP6_UDINF 70
#define OPTION_MIP6_HNP 71
#define OPTION_MIP6_HAA 72
#define OPTION_MIP6_HAF 73
#define OPTION_RDNSS_SELECTION 74
#define OPTION_KRB_PRINCIPAL_NAME 75
#define OPTION_KRB_REALM_NAME 76
#define OPTION_KRB_DEFAULT_REALM_NAME 77
#define OPTION_KRB_KDC 78
#define OPTION_CLIENT_LINKLAYER_ADDR 79
#define OPTION_LINK_ADDRESS 80
#define OPTION_RADIUS 81
#define OPTION_SOL_MAX_RT 82
#define OPTION_INF_MAX_RT 83
/* drafts */
#define OPTION_ADDRSEL 84
#define OPTION_ADDRSEL_TABLE 85
/* temporary value until defined by IETF */
#define OPTION_MIP6_HA 165
#define OPTION_MIP6_HOA 166
#define OPTION_NAI 167
#define DUID_LLT 1
#define DUID_EN 2
#define DUID_LL 3
#define DUID_UUID 4
static const value_string msgtype_vals[] = {
{ SOLICIT, "Solicit" },
{ ADVERTISE, "Advertise" },
{ REQUEST, "Request" },
{ CONFIRM, "Confirm" },
{ RENEW, "Renew" },
{ REBIND, "Rebind" },
{ REPLY, "Reply" },
{ RELEASE, "Release" },
{ DECLINE, "Decline" },
{ RECONFIGURE, "Reconfigure" },
{ INFORMATION_REQUEST, "Information-request" },
{ RELAY_FORW, "Relay-forw" },
{ RELAY_REPLY, "Relay-reply" },
{ LEASEQUERY, "Leasequery" },
{ LEASEQUERY_REPLY, "Leasequery-reply" },
{ LEASEQUERY_DONE, "Leasequery-done" },
{ LEASEQUERY_DATA, "Leasequery-data" },
{ RECONFIGURE_REQUEST, "Reconfigure-request" },
{ RECONFIGURE_REPLY, "Reconfigure-reply" },
{ 0, NULL }
};
static value_string_ext msgtype_vals_ext = VALUE_STRING_EXT_INIT(msgtype_vals);
static const value_string opttype_vals[] = {
{ OPTION_CLIENTID, "Client Identifier" },
{ OPTION_SERVERID, "Server Identifier" },
{ OPTION_IA_NA, "Identity Association for Non-temporary Address" },
{ OPTION_IA_TA, "Identity Association for Temporary Address" },
{ OPTION_IAADDR, "IA Address" },
{ OPTION_ORO, "Option Request" },
{ OPTION_PREFERENCE, "Preference" },
{ OPTION_ELAPSED_TIME, "Elapsed time" },
{ OPTION_RELAY_MSG, "Relay Message" },
/* { OPTION_SERVER_MSG, "Server message" }, */
{ OPTION_AUTH, "Authentication" },
{ OPTION_UNICAST, "Server unicast" },
{ OPTION_STATUS_CODE, "Status code" },
{ OPTION_RAPID_COMMIT, "Rapid Commit" },
{ OPTION_USER_CLASS, "User Class" },
{ OPTION_VENDOR_CLASS, "Vendor Class" },
{ OPTION_VENDOR_OPTS, "Vendor-specific Information" },
{ OPTION_INTERFACE_ID, "Interface-Id" },
{ OPTION_RECONF_MSG, "Reconfigure Message" },
{ OPTION_RECONF_ACCEPT, "Reconfigure Accept" },
{ OPTION_SIP_SERVER_D, "SIP Server Domain Name List" },
{ OPTION_SIP_SERVER_A, "SIP Servers IPv6 Address List" },
{ OPTION_DNS_SERVERS, "DNS recursive name server" },
{ OPTION_DOMAIN_LIST, "Domain Search List" },
{ OPTION_IA_PD, "Identity Association for Prefix Delegation" },
{ OPTION_IAPREFIX, "IA Prefix" },
{ OPTION_NIS_SERVERS, "Network Information Server" },
{ OPTION_NISP_SERVERS, "Network Information Server V2" },
{ OPTION_NIS_DOMAIN_NAME, "Network Information Server Domain Name" },
{ OPTION_NISP_DOMAIN_NAME, "Network Information Server V2 Domain Name" },
{ OPTION_SNTP_SERVERS, "Simple Network Time Protocol Server" },
{ OPTION_LIFETIME, "Lifetime" },
{ OPTION_BCMCS_SERVER_D, "BCMCS Server Domain" },
{ OPTION_BCMCS_SERVER_A, "BCMCS Servers IPv6 Address List" },
{ OPTION_GEOCONF_CIVIC, "Geoconf Civic Address" },
{ OPTION_REMOTE_ID, "Remote Identifier" },
{ OPTION_SUBSCRIBER_ID, "Subscriber Identifier" },
{ OPTION_CLIENT_FQDN, "Fully Qualified Domain Name" },
{ OPTION_PANA_AGENT, "PANA Agents IPv6 Address List" },
{ OPTION_TIME_ZONE, "Time Zone" },
{ OPTION_TZDB, "Time Zone Database" },
{ OPTION_ERO, "Echo Request Option" },
{ OPTION_LQ_QUERY, "Leasequery Query" },
{ OPTION_CLIENT_DATA, "Leasequery Client Data" },
{ OPTION_CLT_TIME, "Client Last Transaction Time" },
{ OPTION_LQ_RELAY_DATA, "Leasequery Relay Data" },
{ OPTION_LQ_CLIENT_LINK, "Leasequery Client Link Address List" },
{ OPTION_MIP6_HNIDF, "Home Network Identifier FQDN" },
{ OPTION_MIP6_VDINF, "Visited Home Network Information" },
{ OPTION_V6_LOST, "LoST Server" },
{ OPTION_CAPWAP_AC_V6, "CAPWAP Access Controllers" },
{ OPTION_RELAYID, "Relay-ID" },
{ OPTION_IPV6_ADDRESS_MOS, "MoS IPv6 Address" },
{ OPTION_IPV6_FQDN_MOS, "MoS Domain Name List" },
{ OPTION_NTP_SERVER, "NTP Server" },
{ OPTION_V6_ACCESS_DOMAIN, "Access Network Domain Name" },
{ OPTION_SIP_UA_CS_LIST, "SIP User Agent Configuration Service Domains" },
{ OPTION_BOOTFILE_URL, "Boot File URL" },
{ OPTION_BOOTFILE_PARAM, "Boot File Parameters" },
{ OPTION_CLIENT_ARCH_TYPE, "Client System Architecture Type" },
{ OPTION_NII, "Client Network Interface Identifier" },
{ OPTION_GEOLOCATION, "Geolocation" },
{ OPTION_AFTR_NAME, "Dual-Stack Lite AFTR Name" },
{ OPTION_ERP_LOCAL_DOMAIN_NAME, "ERP Local Domain Name" },
{ OPTION_RSOO, "Relay-Supplied Options" },
{ OPTION_PD_EXCLUDE, "Prefix Exclude" },
{ OPTION_VSS, "Virtual Subnet Selection" },
{ OPTION_MIP6_IDINF, "Identified Home Network Information" },
{ OPTION_MIP6_UDINF, "Unrestricted Home Network Information" },
{ OPTION_MIP6_HNP, "Home Network Prefix" },
{ OPTION_MIP6_HAA, "Home Agent Address" },
{ OPTION_MIP6_HAF, "Home Agent FQDN" },
{ OPTION_RDNSS_SELECTION, "RDNSS Selection" },
{ OPTION_KRB_PRINCIPAL_NAME, "Kerberos Principal Name" },
{ OPTION_KRB_REALM_NAME, "Kerberos Realm Name" },
{ OPTION_KRB_DEFAULT_REALM_NAME, "Kerberos Default Realm Name" },
{ OPTION_KRB_KDC, "Kerberos KDC" },
{ OPTION_CLIENT_LINKLAYER_ADDR, "Client Link-Layer Address" },
{ OPTION_LINK_ADDRESS, "Link Address" },
{ OPTION_RADIUS, "RADIUS" },
{ OPTION_SOL_MAX_RT, "SOL_MAX_RT" },
{ OPTION_INF_MAX_RT, "INF_MAX_RT" },
{ OPTION_ADDRSEL, "Address Selection" },
{ OPTION_ADDRSEL_TABLE, "Address Selection table" },
{ OPTION_MIP6_HA, "Mobile IPv6 Home Agent" },
{ OPTION_MIP6_HOA, "Mobile IPv6 Home Address" },
{ OPTION_NAI, "Network Access Identifier" },
{ 0, NULL }
};
static value_string_ext opttype_vals_ext = VALUE_STRING_EXT_INIT(opttype_vals);
static const value_string statuscode_vals[] =
{
{ 0, "Success" },
{ 1, "UnspecFail" },
{ 2, "NoAddrAvail" },
{ 3, "NoBinding" },
{ 4, "NotOnLink" },
{ 5, "UseMulticast" },
{ 6, "NoPrefixAvail" },
{ 7, "UnknownQueryType" },
{ 8, "MalformedQuery" },
{ 9, "NotConfigured" },
{10, "NotAllowed" },
{11, "QueryTerminated" },
{0, NULL }
};
static value_string_ext statuscode_vals_ext = VALUE_STRING_EXT_INIT(statuscode_vals);
static const value_string duidtype_vals[] =
{
{ DUID_LLT, "link-layer address plus time" },
{ DUID_EN, "assigned by vendor based on Enterprise number" },
{ DUID_LL, "link-layer address" },
{ DUID_UUID, "Universally Unique IDentifier (UUID)" },
{ 0, NULL }
};
#define NTP_SUBOPTION_SRV_ADDR 1
#define NTP_SUBOPTION_MC_ADDR 2
#define NTP_SUBOPTION_SRV_FQDN 3
static const value_string ntp_server_opttype_vals[] =
{
{ NTP_SUBOPTION_SRV_ADDR, "NTP Server Address" },
{ NTP_SUBOPTION_MC_ADDR, "NTP Multicast Address" },
{ NTP_SUBOPTION_SRV_FQDN, "NTP Server FQDN" },
{ 0, NULL }
};
static const true_false_string fqdn_n = {
"Server should not perform DNS updates",
"Server should perform DNS updates"
};
static const true_false_string fqdn_o = {
"Server has overridden client's S bit preference",
"Server has not overridden client's S bit preference"
};
static const true_false_string fqdn_s = {
"Server should perform forward DNS updates",
"Server should not perform forward DNS updates"
};
#define LQ_QUERY_ADDRESS 1
#define LQ_QUERY_CLIENTID 2
#define LQ_QUERY_RELAYID 3
#define LQ_QUERY_LINK_ADDRESS 4
#define LQ_QUERY_REMOTEID 5
static const value_string lq_query_vals[] = {
{ LQ_QUERY_ADDRESS, "by-address" },
{ LQ_QUERY_CLIENTID, "by-clientID" },
{ LQ_QUERY_RELAYID, "by-relayID" },
{ LQ_QUERY_LINK_ADDRESS, "by-linkAddress" },
{ LQ_QUERY_REMOTEID, "by-remoteID" },
{ 0, NULL },
};
/* CableLabs Common Vendor Specific Options */
#define CL_OPTION_ORO 0x0001 /* 1 */
#define CL_OPTION_DEVICE_TYPE 0x0002 /* 2 */
#define CL_OPTION_EMBEDDED_COMPONENT_LIST 0x0003 /* 3 */
#define CL_OPTION_DEVICE_SERIAL_NUMBER 0x0004 /* 4 */
#define CL_OPTION_HARDWARE_VERSION_NUMBER 0x0005 /* 5 */
#define CL_OPTION_SOFTWARE_VERSION_NUMBER 0x0006 /* 6 */
#define CL_OPTION_BOOT_ROM_VERSION 0x0007 /* 7 */
#define CL_OPTION_VENDOR_OUI 0x0008 /* 8 */
#define CL_OPTION_MODEL_NUMBER 0x0009 /* 9 */
#define CL_OPTION_VENDOR_NAME 0x000a /* 10 */
/* 11-32 are currently reserved */
#define CL_OPTION_TFTP_SERVERS 0x0020 /* 32 */
#define CL_OPTION_CONFIG_FILE_NAME 0x0021 /* 33 */
#define CL_OPTION_SYSLOG_SERVERS 0x0022 /* 34 */
#define CL_OPTION_TLV5 0x0023 /* 35 */
#define CL_OPTION_DEVICE_ID 0x0024 /* 36 */
#define CL_OPTION_RFC868_SERVERS 0x0025 /* 37 */
#define CL_OPTION_TIME_OFFSET 0x0026 /* 38 */
#define CL_OPTION_IP_PREF 0x0027 /* 39 */
/** CableLabs DOCSIS Project Vendor Specific Options */
#define CL_OPTION_DOCS_CMTS_CAP 0x0401 /* 1025 */
#define CL_CM_MAC_ADDR 0x0402 /* 1026 */
#define CL_EROUTER_CONTAINER_OPTION 0x403 /* 1027 */
/** CableLabs PacketCable Project Vendor Specific Options **/
#define CL_OPTION_CCC 0x087a /* 2170 */
#define CL_OPTION_CCCV6 0x087b /* 2171 */
#define CL_OPTION_CORRELATION_ID 0x087c /* 2172 */
/** CableLabs TLVs for DOCS_CMTS_CAP Vendor Option **/
#define CL_OPTION_DOCS_CMTS_TLV_VERS_NUM 0x01 /* 1 */
static const value_string cl_vendor_subopt_values[] = {
/* 1 */ { CL_OPTION_ORO, "Option Request = " },
/* 2 */ { CL_OPTION_DEVICE_TYPE, "Device Type = " },
/* 3 */ { CL_OPTION_EMBEDDED_COMPONENT_LIST, "Embedded Components = " },
/* 4 */ { CL_OPTION_DEVICE_SERIAL_NUMBER, "Serial Number = " },
/* 5 */ { CL_OPTION_HARDWARE_VERSION_NUMBER, "Hardware Version = " },
/* 6 */ { CL_OPTION_SOFTWARE_VERSION_NUMBER, "Software Version = " },
/* 7 */ { CL_OPTION_BOOT_ROM_VERSION, "Boot ROM Version = " },
/* 8 */ { CL_OPTION_VENDOR_OUI, "Organization Unique Identifier = " },
/* 9 */ { CL_OPTION_MODEL_NUMBER, "Model Number = " },
/* 10 */ { CL_OPTION_VENDOR_NAME, "Vendor Name = " },
/* 32 */ { CL_OPTION_TFTP_SERVERS, "TFTP Server Addresses : " },
/* 33 */ { CL_OPTION_CONFIG_FILE_NAME, "Configuration File Name = " },
/* 34 */ { CL_OPTION_SYSLOG_SERVERS, "Syslog Servers : " },
/* 35 */ { CL_OPTION_TLV5, "TLV5 = " },
/* 36 */ { CL_OPTION_DEVICE_ID, "Device Identifier = " },
/* 37 */ { CL_OPTION_RFC868_SERVERS, "Time Protocol Servers : " },
/* 38 */ { CL_OPTION_TIME_OFFSET, "Time Offset = " },
/* 39 */ { CL_OPTION_IP_PREF, "IP preference : " },
/* 1025 */ { CL_OPTION_DOCS_CMTS_CAP, "CMTS Capabilities Option : " },
/* 1026 */ { CL_CM_MAC_ADDR, "CM MAC Address Option = " },
/* 1027 */ { CL_EROUTER_CONTAINER_OPTION, "eRouter Container Option : " },
/* 2170 */ { CL_OPTION_CCC, "CableLabs Client Configuration : " },
/* 2171 */ { CL_OPTION_CCCV6, "CableLabs Client Configuration IPv6 : " },
/* 2172 */ { CL_OPTION_CORRELATION_ID, "CableLabs Correlation ID = " },
{ 0, NULL }
};
static value_string_ext cl_vendor_subopt_values_ext = VALUE_STRING_EXT_INIT(cl_vendor_subopt_values);
/* 17:2170: CL_OPTION_CCC */
#define PKT_CCC_PRI_DHCP 0x0001
#define PKT_CCC_SEC_DHCP 0x0002
static const value_string pkt_ccc_opt_vals[] = {
{ PKT_CCC_PRI_DHCP, "TSP's Primary DHCP Server" },
{ PKT_CCC_SEC_DHCP, "TSP's Secondary DHCP Server" },
{ 0, NULL },
};
/* 17:2171: CL_OPTION_CCCV6 */
#define PKT_CCCV6_PRI_DSS 0x0001
#define PKT_CCCV6_SEC_DSS 0x0002
#define PKT_CCCV6_IETF_PROV_SRV 0x0003
#define PKT_CCCV6_IETF_AS_KRB 0x0004
#define PKT_CCCV6_IETF_AP_KRB 0x0005
#define PKT_CCCV6_KRB_REALM 0x0006
#define PKT_CCCV6_TGT_FLAG 0x0007
#define PKT_CCCV6_PROV_TIMER 0x0008
#define PKT_CCCV6_IETF_SEC_TKT 0x0009
/** 10 -255 Reserved for future extensions **/
static const value_string pkt_cccV6_opt_vals[] = {
{ PKT_CCCV6_PRI_DSS, "TSP's Primary DHCPv6 Server Selector ID" },
{ PKT_CCCV6_SEC_DSS, "TSP's Secondary DHCPv6 Server Selector ID " },
{ PKT_CCCV6_IETF_PROV_SRV, "TSP's Provisioning Server" },
{ PKT_CCCV6_IETF_AS_KRB, "TSP's AS-REQ/AS-REP Backoff and Retry" },
{ PKT_CCCV6_IETF_AP_KRB, "TSP's AP-REQ/AP-REP Backoff and Retry" },
{ PKT_CCCV6_KRB_REALM, "TSP's Kerberos Realm Name" },
{ PKT_CCCV6_TGT_FLAG, "TSP's Ticket Granting Server Utilization" },
{ PKT_CCCV6_PROV_TIMER, "TSP's Provisioning Timer Value" },
{ PKT_CCCV6_IETF_SEC_TKT, "PacketCable Security Ticket Control" },
{ 0, NULL }
};
static value_string_ext pkt_cccV6_opt_vals_ext = VALUE_STRING_EXT_INIT(pkt_cccV6_opt_vals);
static const value_string pkt_cccV6_prov_srv_type_vals[] = {
{ 0, "FQDN" },
{ 1, "IPv6" },
{ 0, NULL },
};
#if 0
static const value_string sec_tcm_vals[] = {
{ 1 << 0, "PacketCable Provisioning Server" },
{ 1 << 1, "PacketCable Call Manager Servers" },
{ 0, NULL },
};
#endif
static const value_string modem_capabilities_encoding [] = {
{ 1, "Concatenation Support" },
{ 2, "DOCSIS Version" },
{ 3, "Fragmentation Support" },
{ 4, "Payload Header Suppression Support" },
{ 5, "IGMP Support" },
{ 6, "Privacy Support" },
{ 7, "Downstream SAID Support" },
{ 8, "Upstream Service Flow Support" },
{ 9, "Optional Filtering Support" },
{ 10, "Transmit Pre-Equalizer Taps per Modulation Interval" },
{ 11, "Number of Transmit Equalizer Taps" },
{ 12, "DCC Support" },
{ 13, "IP Filters Support" },
{ 14, "LLC Filters Support" },
{ 15, "Expanded Unicast SID Space" },
{ 16, "Ranging Hold-Off Support" },
{ 17, "L2VPN Capability" },
{ 18, "L2VPN eSAFE Host Capability" },
{ 19, "Downstream Unencrypted Traffic (DUT) Filtering" },
{ 20, "Upstream Frequency Range Support" },
{ 21, "Upstream Symbol Rate Support" },
{ 22, "Selectable Active Code Mode 2 Support" },
{ 23, "Code Hopping Mode 2 Support" },
{ 24, "Multiple Transmit Channel Support" },
{ 25, "5.12 Msps UpstreamTransmit Channel Support" },
{ 26, "2.56 Msps Upstream Transmit Channel Support" },
{ 27, "Total SID Cluster Support" },
{ 28, "SID Clusters per Service Flow Support" },
{ 29, "Multiple Receive Channel Support" },
{ 30, "Total Downstream Service ID (DSID) Support" },
{ 31, "Resequencing Downstream Service ID (DSID) Support" },
{ 32, "Multicast Downstream Service ID (DSID) Support" },
{ 33, "Multicast DSID Forwarding" },
{ 34, "Frame Control Type Forwarding Capability" },
{ 35, "DPV Capability" },
{ 36, "Unsolicited Grant Service/Upstream Service Flow Support" },
{ 37, "MAP and UCD Receipt Support" },
{ 38, "Upstream Drop Classifier Support" },
{ 39, "IPv6 Support" },
{ 40, "Extended Upstream Transmit Power Capability" },
{ 41, "Optional 802.1ad, 802.1ah, MPLS Classification Support" },
{ 42, "D-ONU Capabilities Encoding" },
{ 43, "TBD" },
{ 44, "Energy Management Capabilities" },
{ 0, NULL },
};
static value_string_ext modem_capabilities_encoding_ext = VALUE_STRING_EXT_INIT(modem_capabilities_encoding);
static const value_string eue_capabilities_encoding [] = {
{ 1, "PacketCable Version" },
{ 2, "Number Of Telephony Endpoints" },
{ 3, "TGT Support" },
{ 4, "HTTP Download File Access Method Support" },
{ 5, "MTA-24 Event SYSLOG Notification Support" },
{ 6, "NCS Service Flow Support" },
{ 7, "Primary Line Support" },
{ 8, "Vendor Specific TLV Type(s)" },
{ 9, "NVRAM Ticket/Ticket Information Storage Support" },
{ 10, "Provisioning Event Reporting Support" },
{ 11, "Supported CODEC(s)" },
{ 12, "Silence Suppression Support" },
{ 13, "Echo Cancellation Support" },
{ 14, "RSVP Support" },
{ 15, "UGS-AD Support" },
{ 16, "MTA's \"ifIndex\" starting number in \"ifTable\"" },
{ 17, "Provisioning Flow Logging Support" },
{ 18, "Supported Provisioning Flows" },
{ 19, "T38 Version Support" },
{ 20, "T38 Error Correction Support" },
{ 21, "RFC2833 DTMF Support" },
{ 22, "Voice Metrics Support" },
{ 23, "Device MIB Support" },
{ 24, "Multiple Grants Per Interval Support" },
{ 25, "V.152 Support" },
{ 26, "Certificate Bootstrapping Support" },
{ 38, "IP Address Provisioning Capability" },
{ 0, NULL },
};
static value_string_ext eue_capabilities_encoding_ext = VALUE_STRING_EXT_INIT(eue_capabilities_encoding);
typedef struct hopcount_info_t {
guint8 hopcount;
proto_item *pi;
gboolean relay_message_previously_detected;
} hopcount_info;
static void
initialize_hopount_info(hopcount_info *hpi) {
memset(hpi, 0, sizeof(hopcount_info));
}
static void
dissect_dhcpv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
int off, int eoff, hopcount_info hpi);
static int
dissect_packetcable_ccc_option(proto_tree *v_tree, proto_item *v_item, packet_info *pinfo, tvbuff_t *tvb, int optoff,
int optend)
{
/** THE ENCODING OF THIS SUBOPTION HAS CHANGED FROM DHCPv4
the code and length fields have grown from a single octet to
two octets each. **/
int suboptoff = optoff;
guint16 subopt, subopt_len;
proto_item *vti;
proto_tree *pkt_s_tree;
subopt = tvb_get_ntohs(tvb, optoff);
suboptoff += 2;
subopt_len = tvb_get_ntohs(tvb, suboptoff);
suboptoff += 2;
/* There must be at least five octets left to be a valid sub element */
if (optend <= 0) {
expert_add_info_format(pinfo, v_item, &ei_dhcpv6_no_suboption_len, "Sub element %d: no room left in option for suboption length", subopt);
return (optend);
}
/* g_print("dissect packetcable ccc option subopt_len=%d optend=%d\n\n", subopt_len, optend); */
vti = proto_tree_add_item(v_tree, hf_packetcable_ccc_suboption, tvb, optoff, 2, ENC_BIG_ENDIAN);
pkt_s_tree = proto_item_add_subtree(vti, ett_dhcpv6_pkt_option);
switch (subopt) {
case PKT_CCC_PRI_DHCP: /* IPv4 address values */
if (subopt_len == 4) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_ccc_pri_dhcp, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
}
else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCC_SEC_DHCP:
if (subopt_len == 4) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_ccc_sec_dhcp, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
}
else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
default:
suboptoff += subopt_len;
break;
}
/** Return the number of bytes processed **/
return (suboptoff - optoff);
}
/* Adds domain */
/* XXX: ToDo: Rework to use some version of (a revised) get_dns_name() for each individual FQDN */
static void
dhcpv6_domain(proto_tree *subtree, proto_item *v_item, packet_info *pinfo, int hfindex, tvbuff_t *tvb, int offset, guint16 optlen)
{
int start_offset = offset;
char domain[256];
int pos;
guint8 len;
pos = 0;
while (optlen) {
/* this is the start of the domain name */
if (!pos) {
start_offset = offset;
}
domain[pos] = '\0';
/* read length of the next substring */
len = tvb_get_guint8(tvb, offset);
/* Microsoft dhcpv6 clients aren't currently RFC 4704 conformant: They send an
* ASCII string instead of a DNS record encoded domain name. Catch that case
* to allow us to continue after such a malformed record.
*/
if (optlen < len) {
expert_add_info(pinfo, v_item, &ei_dhcpv6_malformed_dns);
return;
}
offset += 1;
optlen -= 1;
/* if len==0 and pos>0 we have read an entire domain string */
if (!len) {
if (!pos) {
/* empty string, this must be an error? */
expert_add_info(pinfo, v_item, &ei_dhcpv6_malformed_option);
return;
} else {
proto_tree_add_string(subtree, hfindex, tvb, start_offset, offset-start_offset, domain);
pos = 0;
continue;
}
}
/* add the substring to domain */
if (pos) {
domain[pos] = '.';
pos++;
}
if ((pos + len) > 254) {
/* too long string, this must be an error? */
expert_add_info(pinfo, v_item, &ei_dhcpv6_malformed_option);
return;
}
tvb_memcpy(tvb, domain+pos, offset, len);
pos += len;
offset += len;
optlen -= len;
}
if (pos) {
domain[pos] = '\0';
proto_tree_add_string(subtree, hfindex, tvb, start_offset, offset-start_offset, domain);
}
}
static int
dissect_packetcable_cccV6_option(proto_tree *v_tree, proto_item *v_item, packet_info *pinfo, tvbuff_t *tvb, int optoff,
int optend)
{
int suboptoff = optoff;
guint16 subopt, subopt_len;
guint8 type;
proto_item *vti, *ti;
proto_tree *pkt_s_tree;
int i;
subopt = tvb_get_ntohs(tvb, optoff);
suboptoff += 2;
subopt_len = tvb_get_ntohs(tvb, suboptoff);
suboptoff += 2;
/* There must be at least five octets left to be a valid sub element */
if (optend <= 0) {
expert_add_info_format(pinfo, v_item, &ei_dhcpv6_no_suboption_len, "Sub element %d: no room left in option for suboption length", subopt);
return (optend);
}
vti = proto_tree_add_item(v_tree, hf_packetcable_cccV6_suboption, tvb, optoff, 2, ENC_BIG_ENDIAN);
pkt_s_tree = proto_item_add_subtree(vti, ett_dhcpv6_pkt_option);
switch (subopt) {
case PKT_CCCV6_PRI_DSS:
if (subopt_len < 35) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_pri_dss, tvb, suboptoff, subopt_len, ENC_ASCII|ENC_NA);
} else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_SEC_DSS:
if (subopt_len < 35) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_sec_dss, tvb, suboptoff, subopt_len, ENC_ASCII|ENC_NA);
} else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_IETF_PROV_SRV:
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_prov_srv_type, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
type = tvb_get_guint8(tvb, suboptoff);
/** Type 0 is FQDN **/
if (type == 0) {
dhcpv6_domain(pkt_s_tree, vti, pinfo, hf_packetcable_cccV6_prov_srv_fqdn, tvb, suboptoff+1, subopt_len-1);
/** Type 1 is IPv6 **/
} else if (type == 1) {
if ((subopt_len % 16) == 0) {
for (i = 0; i < subopt_len/16; i++) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_prov_srv_ipv6, tvb, suboptoff+1, 4, ENC_NA);
suboptoff += 16;
}
}
} else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_invalid_type, "Invalid type: %u (%u byte%s)",
type, subopt_len, plurality(subopt_len, "", "s"));
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_IETF_AS_KRB:
if (subopt_len == 12) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_as_krb_nominal_timeout, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_as_krb_max_timeout, tvb, suboptoff+4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_as_krb_max_retry_count, tvb, suboptoff+8, 4, ENC_BIG_ENDIAN);
} else {
proto_item_append_text(vti, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_IETF_AP_KRB:
if (subopt_len == 12) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_ap_krb_nominal_timeout, tvb, suboptoff, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_ap_krb_max_timeout, tvb, suboptoff+4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_ap_krb_max_retry_count, tvb, suboptoff+8, 4, ENC_BIG_ENDIAN);
} else {
proto_item_append_text(vti, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_KRB_REALM:
if (subopt_len > 0) {
dhcpv6_domain(pkt_s_tree, vti, pinfo, hf_packetcable_cccV6_krb_realm, tvb, suboptoff, subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_TGT_FLAG:
if (subopt_len == 1) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_tgt_flag, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_tgt_flag_fetch, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
}
else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_PROV_TIMER:
if (subopt_len == 1) {
ti = proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_prov_timer, tvb, suboptoff, 1, ENC_BIG_ENDIAN);
if (tvb_get_guint8(tvb, suboptoff) > 30)
expert_add_info(pinfo, ti, &ei_dhcpv6_invalid_time_value);
}
else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
case PKT_CCCV6_IETF_SEC_TKT:
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_sec_tcm, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
if (subopt_len == 2) {
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_sec_tcm_provisioning_server, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(pkt_s_tree, hf_packetcable_cccV6_sec_tcm_call_manager_server, tvb, suboptoff, 2, ENC_BIG_ENDIAN);
} else {
expert_add_info_format(pinfo, vti, &ei_dhcpv6_bogus_length, "Bogus length: %d", subopt_len);
}
suboptoff += subopt_len;
break;
default:
suboptoff += subopt_len;
break;
}
/** Return the number of bytes processed **/
return (suboptoff - optoff);
}
/* ToDo: review latest CL docs for updates */
static void
dissect_cablelabs_specific_opts(proto_tree *v_tree, proto_item *v_item, packet_info *pinfo, tvbuff_t *tvb, int voff, int len)
{
guint16 type,
tlv_len, /* holds the number of elements in the tlv */
opt_len, /* holds the length of the suboption */
sub_value;
proto_item *ti;
proto_item *ti2;
proto_tree *subtree;
proto_tree *subtree2;
gint tlv5_cap_index,
tlv5_counter,
tlv5_cap_len;
int off = voff,
sub_off, /** The offset for the sub-option */
i,
field_len, /* holds the length of one occurrence of a field */
field_value;
gchar *device_type = NULL;
if (len > 4) {
while (off - voff < len) {
/* Type */
type = tvb_get_ntohs(tvb, off);
ti = proto_tree_add_item(v_tree, hf_cablelabs_opts, tvb, off, 2, ENC_BIG_ENDIAN);
/* Length */
tlv_len = tvb_get_ntohs(tvb, off+2);
/* Values */
sub_off = off + 4;
switch (type) {
/* String types */
case CL_OPTION_DEVICE_TYPE:
opt_len = tlv_len;
field_len = tlv_len;
device_type = tvb_get_string_enc(wmem_packet_scope(), tvb, sub_off, field_len, ENC_ASCII);
if ((device_type == NULL) || (strlen(device_type) == 0)) {
proto_item_append_text(ti, "Packet does not contain Device Type.");
} else {
proto_item_append_text(ti, "\"%s\"", device_type);
}
break;
case CL_OPTION_DEVICE_SERIAL_NUMBER:
case CL_OPTION_HARDWARE_VERSION_NUMBER:
case CL_OPTION_SOFTWARE_VERSION_NUMBER:
case CL_OPTION_BOOT_ROM_VERSION:
case CL_OPTION_MODEL_NUMBER:
case CL_OPTION_VENDOR_NAME:
case CL_OPTION_CONFIG_FILE_NAME:
case CL_OPTION_EMBEDDED_COMPONENT_LIST:
opt_len = tlv_len;
field_len = tlv_len;
proto_item_append_text(ti, "\"%s\"",
tvb_format_stringzpad(tvb, sub_off, field_len));
break;
case CL_OPTION_VENDOR_OUI:
/* CableLabs specs treat 17.8 inconsistently
* as either binary (3b) or string (6b) */
opt_len = tlv_len;
if (tlv_len == 3) {
proto_item_append_text(ti, "%s",
tvb_bytes_to_str_punct(wmem_packet_scope(), tvb, sub_off, 3, ':'));
} else if (tlv_len == 6) {
proto_item_append_text(ti, "\"%s\"", tvb_format_stringzpad(tvb, sub_off, tlv_len));
} else {
expert_add_info_format(pinfo, ti, &ei_dhcpv6_bogus_length, "Suboption %d: suboption length isn't 3 or 6", type);
}
break;
case CL_OPTION_ORO:
field_len = 2;
opt_len = tlv_len;
if (opt_len > 0) {
for (i = 0; i < tlv_len; i += field_len) {
sub_value = tvb_get_ntohs(tvb, sub_off);
proto_item_append_text(ti, " %d", sub_value);
sub_off += field_len;
}
}
break;
/* List of IPv6 Address */
case CL_OPTION_TFTP_SERVERS:
case CL_OPTION_SYSLOG_SERVERS:
case CL_OPTION_RFC868_SERVERS:
field_len = 16;
opt_len = tlv_len;
subtree = proto_item_add_subtree(ti, ett_dhcpv6_vendor_option);
if ((tlv_len % field_len) == 0) {
for (i = 0; i < tlv_len/field_len; i++) {
ti = proto_tree_add_item(subtree, hf_cablelabs_ipv6_server, tvb, sub_off, 16, ENC_NA);
proto_item_prepend_text(ti, " %d ", i + 1);
sub_off += field_len;
}
}
break;
case CL_OPTION_DEVICE_ID:
opt_len = tlv_len;
field_len = tlv_len;
if (tlv_len != 6) {
expert_add_info_format(pinfo, ti, &ei_dhcpv6_bogus_length, "Bogus length: %d", tlv_len);
}
else {
proto_item_append_text(ti, "%s",
tvb_bytes_to_str(wmem_packet_scope(), tvb, sub_off, field_len));
}
break;
case CL_OPTION_TLV5:
/* ToDo: review latest CL docs for updates */
opt_len = tlv_len;
if (device_type == NULL)
break;
tlv5_counter = 0;
tlv5_cap_index = sub_off;
subtree = proto_item_add_subtree(ti, ett_dhcpv6_tlv5_type);
while (tlv5_counter < tlv_len) {
if (!g_ascii_strncasecmp(device_type, "ecm", 3)) {
ti2 = proto_tree_add_item(subtree, hf_modem_capabilities_encoding_type, tvb, tlv5_cap_index, 1, ENC_BIG_ENDIAN);
} else if (!g_ascii_strncasecmp(device_type, "edva", 3)) {
ti2 = proto_tree_add_item(subtree, hf_eue_capabilities_encoding_type, tvb, tlv5_cap_index, 1, ENC_BIG_ENDIAN);
} else {
break;
}
tlv5_cap_index++;
tlv5_counter++;
/* Why make another subtree (subtree2) below?
The addition of a subtree is not needed for the display.
However, when parsing the PDML, each Type 'contains' it's Length and Value.
*/
subtree2 = proto_item_add_subtree(ti2, ett_dhcpv6_tlv5_type);
proto_tree_add_item(subtree2, hf_capabilities_encoding_length, tvb, tlv5_cap_index, 1, ENC_BIG_ENDIAN);
tlv5_cap_len = (guint8) tvb_get_guint8(tvb, tlv5_cap_index);
tlv5_cap_index++;
tlv5_counter += tlv5_cap_len;
/* In cases where the TLV length is greater than 2, the value fields should be displayed
according to the encoding of the values as described in the CL-SP-CANN-DHCP-Reg specification.
Below, these values are simply displayed as hex.
*/
if (tlv5_cap_len > 2) {
proto_tree_add_item(subtree2, hf_capabilities_encoding_bytes, tvb, tlv5_cap_index, tlv5_cap_len, ENC_NA);
} else {
proto_tree_add_item(subtree2, hf_capabilities_encoding_number, tvb, tlv5_cap_index, tlv5_cap_len, ENC_BIG_ENDIAN);
}
tlv5_cap_index += tlv5_cap_len;
tlv5_counter++;
}
break;
case CL_OPTION_TIME_OFFSET:
opt_len = tlv_len;
proto_item_append_text(ti, "%d", tvb_get_ntohl(tvb, sub_off));
break;
case CL_OPTION_IP_PREF:
opt_len = tlv_len;
field_value = tvb_get_guint8(tvb, sub_off);
if (field_value == 1) {
proto_item_append_text(ti, "%s", "IPv4");
} else if (field_value == 2) {
proto_item_append_text(ti, "%s", "IPv6");
} else if (field_value == 6) {
proto_item_append_text(ti, "%s", "Dual Stack");
} else {
proto_item_append_text(ti, "%s%d", "Invalid IP Preference value ", field_value);
}
break;
case CL_OPTION_DOCS_CMTS_CAP:
opt_len = tlv_len;
field_len = 0;
subtree = proto_item_add_subtree(ti, ett_dhcpv6_vendor_option);
/* tlv_len contains the total length of all the TLVs for this
option */
if (tlv_len > 0) {
for (i = 0; field_len < opt_len; i++) {
int tagLen = 0;
int tag = 0;
tag = tvb_get_guint8(tvb, sub_off);
sub_off++;
tagLen = tvb_get_guint8(tvb, sub_off);
sub_off++;
if ((tag == CL_OPTION_DOCS_CMTS_TLV_VERS_NUM) && (tagLen == 2)) {
proto_tree_add_item(subtree, hf_cablelabs_docsis_version_number, tvb, sub_off,
2, ENC_BIG_ENDIAN);
sub_off += 2;
}
else
sub_off += tagLen;
field_len += tagLen + 2;
}
}
else
proto_item_append_text(ti, " (empty)");
break;
case CL_CM_MAC_ADDR:
opt_len = tlv_len;
if (tlv_len != 6) {
expert_add_info_format(pinfo, ti, &ei_dhcpv6_bogus_length, "Bogus length: %d", tlv_len);
}
else {
/*proto_item_append_text(ti, "CM MAC Address Option = %s", */
proto_item_append_text(ti, "%s", tvb_bytes_to_str_punct(wmem_packet_scope(), tvb, sub_off, opt_len, ':'));
/* tvb_bytes_to_str(wmem_packet_scope(), tvb, sub_off, opt_len)); */
}
break;
case CL_EROUTER_CONTAINER_OPTION:
opt_len = tlv_len;
proto_item_append_text(ti, " %s (len=%d)",
tvb_bytes_to_str(wmem_packet_scope(), tvb, sub_off, opt_len), tlv_len);
break;
case CL_OPTION_CCC:
opt_len = tlv_len;
field_len = 0;
subtree = proto_item_add_subtree(ti, ett_dhcpv6_vendor_option);
proto_item_append_text(ti, " (%d bytes)", opt_len);
while (field_len < opt_len) {
sub_value = dissect_packetcable_ccc_option(subtree, ti, pinfo, tvb,
sub_off, (opt_len - field_len));
sub_off += sub_value;
field_len += sub_value;
}
break;
case CL_OPTION_CCCV6:
opt_len = tlv_len;
field_len = 0;
subtree = proto_item_add_subtree(ti, ett_dhcpv6_vendor_option);
proto_item_append_text(ti, " (%d bytes)", opt_len);
while (field_len < opt_len) {
sub_value = dissect_packetcable_cccV6_option(subtree, ti, pinfo, tvb,
sub_off, (opt_len - field_len));
sub_off += sub_value;
field_len += sub_value;
}
break;
case CL_OPTION_CORRELATION_ID:
opt_len = tlv_len;
if (tlv_len != 4) {
proto_item_append_text(ti, "Bogus value length=%d",
tlv_len);
}
else {
proto_item_append_text(ti, "%u", tvb_get_ntohl(tvb, sub_off));
}
break;
default:
opt_len = tlv_len;
break;
}
off += (opt_len + 4);
}
}
else {
expert_add_info_format(pinfo, v_item, &ei_dhcpv6_bogus_length, "Bogus length: %d", len);
}
}
static void
cablelabs_fmt_docsis_version( gchar *result, guint32 revision )
{
g_snprintf( result, ITEM_LABEL_LENGTH, "%d.%02d", (guint8)(( revision & 0xFF00 ) >> 8), (guint8)(revision & 0xFF) );
}
/* Returns the number of bytes consumed by this option. */
static int
dhcpv6_option(tvbuff_t *tvb, packet_info *pinfo, proto_tree *bp_tree,
int off, int eoff, gboolean *at_end, int protocol, hopcount_info hpi)
{
guint16 opttype, hwtype, subopt_type;
int temp_optlen, optlen, subopt_len; /* 16-bit values that need 16-bit rollover protection */
proto_item *ti = NULL, *option_item;
proto_tree *subtree;
proto_tree *subtree_2;
int i;
guint16 duidtype;
guint32 enterprise_no;
/* option type and length must be present */
if ((eoff - off) < 4) {
*at_end = TRUE;
return 0;
}
opttype = tvb_get_ntohs(tvb, off);
optlen = tvb_get_ntohs(tvb, off + 2);
/* all option data must be present */
if ((eoff - off) < (4 + optlen)) {
*at_end = TRUE;
return 0;
}
subtree = proto_tree_add_subtree(bp_tree, tvb, off, 4 + optlen, ett_dhcpv6_option, &option_item,
val_to_str_ext(opttype, &opttype_vals_ext, "DHCP option %u"));
proto_tree_add_item(subtree, hf_option_type, tvb, off, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_option_length, tvb, off + 2, 2, ENC_BIG_ENDIAN);
off += 4;
/* Right now, none of the options can be filtered at, so provide a hex
array for minimalistic filtering */
if (optlen)
proto_tree_add_item(subtree, hf_option_value, tvb, off, optlen, ENC_NA);
switch (opttype) {
case OPTION_CLIENTID:
col_append_fstr(pinfo->cinfo, COL_INFO, "CID: %s ", tvb_bytes_to_str(wmem_packet_scope(), tvb, off, optlen));
/* Fall through */
case OPTION_SERVERID:
case OPTION_RELAYID:
if (optlen < 2) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DUID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_duid_bytes, tvb, off, optlen, ENC_NA);
duidtype = tvb_get_ntohs(tvb, off);
proto_tree_add_item(subtree, hf_duid_type, tvb, off, 2, ENC_BIG_ENDIAN);
switch (duidtype) {
case DUID_LLT:
{
nstime_t llt_time;
if (optlen < 8) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DUID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_duidllt_hwtype, tvb, off + 2, 2, ENC_BIG_ENDIAN);
/* Packet specifies seconds since Jan 1 2000, so add 946684800U (30 years) to get back to epoch */
llt_time.secs = tvb_get_ntohl(tvb, off + 4) + 946684800U;
llt_time.nsecs = 0;
proto_tree_add_time(subtree, hf_duidllt_time, tvb, off + 4, 4, &llt_time);
if (optlen > 8) {
hwtype = tvb_get_ntohs(tvb, off + 2);
proto_tree_add_string(subtree, hf_duidllt_link_layer_addr, tvb, off + 8,
optlen - 8, tvb_arphrdaddr_to_str(tvb, off+8, optlen-8, hwtype));
}
}
break;
case DUID_EN:
if (optlen < 6) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DUID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_duiden_enterprise, tvb, off + 2, 4, ENC_BIG_ENDIAN);
if (optlen > 6) {
proto_tree_add_item(subtree, hf_duiden_identifier, tvb, off + 6, optlen - 6, ENC_NA);
}
break;
case DUID_LL:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DUID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_duidll_hwtype, tvb, off + 2, 2, ENC_BIG_ENDIAN);
if (optlen > 4) {
hwtype = tvb_get_ntohs(tvb, off + 2);
proto_tree_add_string(subtree, hf_duidll_link_layer_addr, tvb, off + 4,
optlen - 4, tvb_arphrdaddr_to_str(tvb, off+4, optlen-4, hwtype));
}
break;
case DUID_UUID:
if (optlen != 18) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DUID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_duiduuid_bytes, tvb, off + 2, 16, ENC_NA);
break;
}
break;
case OPTION_NTP_SERVER:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "NTP Server: malformed option");
break;
}
temp_optlen = 0;
while (optlen > temp_optlen) {
subopt_type = tvb_get_ntohs(tvb, off + temp_optlen);
subopt_len = tvb_get_ntohs(tvb, off + 2 + temp_optlen);
subtree_2 = proto_tree_add_subtree(subtree, tvb, off+temp_optlen, 4 + subopt_len, ett_dhcpv6_netserver_option, &ti,
val_to_str(subopt_type, ntp_server_opttype_vals, "NTP Server suboption %u"));
proto_tree_add_item(subtree_2, hf_option_ntpserver_type, tvb, off + temp_optlen, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree_2, hf_option_ntpserver_length, tvb, off + temp_optlen + 2, 2, ENC_BIG_ENDIAN);
temp_optlen += 4;
switch (subopt_type) {
case NTP_SUBOPTION_SRV_ADDR:
proto_tree_add_item(subtree_2, hf_option_ntpserver_addr, tvb, off + temp_optlen, 16, ENC_NA);
break;
case NTP_SUBOPTION_MC_ADDR:
proto_tree_add_item(subtree_2, hf_option_ntpserver_mc_addr, tvb, off + temp_optlen, 16, ENC_NA);
break;
case NTP_SUBOPTION_SRV_FQDN:
/* RFC 5906: section 4.3: "Internationalized domain names are not allowed ..." */
dhcpv6_domain(subtree_2, ti, pinfo, hf_option_ntpserver_fqdn, tvb, off + temp_optlen, subopt_len);
break;
}
temp_optlen += subopt_len;
}
break;
case OPTION_IA_NA:
case OPTION_IA_PD:
if (optlen < 12) {
if (opttype == OPTION_IA_NA)
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "IA_NA: malformed option");
else
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "IA_PD: malformed option");
break;
}
proto_tree_add_string(subtree, hf_iaid, tvb, off,
4, tvb_arphrdaddr_to_str(tvb, off, 4, opttype)); /* XXX: IAID is opaque ? review ... */
if (tvb_get_ntohl(tvb, off+4) == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format_value(subtree, hf_iaid_t1, tvb, off+4,
4, DHCPV6_LEASEDURATION_INFINITY, "infinity");
} else {
proto_tree_add_item(subtree, hf_iaid_t1, tvb, off+4,
4, ENC_BIG_ENDIAN);
}
if (tvb_get_ntohl(tvb, off+8) == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format_value(subtree, hf_iaid_t2, tvb, off+8,
4, DHCPV6_LEASEDURATION_INFINITY, "infinity");
} else {
proto_tree_add_item(subtree, hf_iaid_t2, tvb, off+8,
4, ENC_BIG_ENDIAN);
}
temp_optlen = 12;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off+temp_optlen, off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
break;
case OPTION_IA_TA:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "IA_TA: malformed option");
break;
}
proto_tree_add_string(subtree, hf_iata, tvb, off,
4, tvb_arphrdaddr_to_str(tvb, off, 4, opttype)); /* XXX: IAID is opaque ? review ... */
temp_optlen = 4;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off+temp_optlen, off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
break;
case OPTION_IAADDR:
{
guint32 preferred_lifetime, valid_lifetime;
if (optlen < 24) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "IA_TA: malformed option");
break;
}
proto_tree_add_item(subtree, hf_iaaddr_ip, tvb, off, 16, ENC_NA);
col_append_fstr(pinfo->cinfo, COL_INFO, "IAA: %s ", tvb_ip6_to_str(tvb, off));
preferred_lifetime = tvb_get_ntohl(tvb, off + 16);
valid_lifetime = tvb_get_ntohl(tvb, off + 20);
if (preferred_lifetime == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format_value(subtree, hf_iaaddr_pref_lifetime, tvb, off+16,
4, DHCPV6_LEASEDURATION_INFINITY, "infinity");
} else {
proto_tree_add_item(subtree, hf_iaaddr_pref_lifetime, tvb, off+16,
4, ENC_BIG_ENDIAN);
}
if (valid_lifetime == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format(subtree, hf_iaaddr_valid_lifetime, tvb, off+20,
4, DHCPV6_LEASEDURATION_INFINITY, "Preferred lifetime: infinity");
} else {
proto_tree_add_item(subtree, hf_iaaddr_valid_lifetime, tvb, off+20,
4, ENC_BIG_ENDIAN);
}
temp_optlen = 24;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off+temp_optlen, off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
}
break;
case OPTION_ORO:
case OPTION_ERO:
for (i = 0; i < optlen; i += 2) {
proto_tree_add_item(subtree, hf_requested_option_code, tvb, off+i,
2, ENC_BIG_ENDIAN);
}
break;
case OPTION_PREFERENCE:
if (optlen != 1) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "PREFERENCE: malformed option");
break;
}
proto_tree_add_item(subtree, hf_option_preference, tvb, off, 1, ENC_BIG_ENDIAN);
break;
case OPTION_ELAPSED_TIME:
if (optlen != 2) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "ELAPSED-TIME: malformed option");
break;
}
temp_optlen = tvb_get_ntohs(tvb, off);
proto_tree_add_uint_format_value(subtree, hf_elapsed_time, tvb, off,
2, temp_optlen*10, "%u ms", temp_optlen*10);
break;
case OPTION_RELAY_MSG:
if (optlen == 0) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "RELAY-MSG: malformed option");
} else {
/* here, we should dissect a full DHCP message */
dissect_dhcpv6(tvb, pinfo, subtree, off, off + optlen, hpi);
}
break;
case OPTION_AUTH:
if (optlen < 11) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "AUTH: malformed option");
break;
}
proto_tree_add_item(subtree, hf_auth_protocol, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_auth_algorithm, tvb, off+1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_auth_rdm, tvb, off+2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_auth_replay_detection, tvb, off+3, 8, ENC_NA);
if (optlen != 11)
proto_tree_add_item(subtree, hf_auth_info, tvb, off+11, optlen-11, ENC_NA);
break;
case OPTION_UNICAST:
if (optlen != 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "UNICAST: malformed option");
break;
}
proto_tree_add_item(subtree, hf_opt_unicast, tvb, off, 16, ENC_NA);
break;
case OPTION_STATUS_CODE:
proto_tree_add_item(subtree, hf_opt_status_code, tvb, off, 2, ENC_BIG_ENDIAN);
if (optlen > 2)
proto_tree_add_item(subtree, hf_opt_status_msg, tvb, off+2, optlen - 2, ENC_ASCII|ENC_NA);
break;
case OPTION_VENDOR_CLASS:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "VENDOR_CLASS: malformed option");
break;
}
proto_tree_add_item(subtree, hf_vendorclass_enterprise, tvb, off, 4, ENC_BIG_ENDIAN);
if (optlen > 4)
proto_tree_add_item(subtree, hf_vendorclass_data, tvb, off+6, optlen-6, ENC_ASCII|ENC_NA);
break;
case OPTION_VENDOR_OPTS:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "VENDOR_OPTS: malformed option");
break;
}
enterprise_no = tvb_get_ntohl(tvb, off);
ti = proto_tree_add_item(subtree, hf_vendoropts_enterprise, tvb, off, 4, ENC_BIG_ENDIAN);
if (optlen >= 4) {
if (enterprise_no == 4491) {
dissect_cablelabs_specific_opts(subtree, ti, pinfo, tvb, off+4, optlen-4);
} else {
int optoffset = 0;
while ((optlen - 4 - optoffset) > 0) {
int olen = tvb_get_ntohs(tvb, off + optoffset + 6);
subtree_2 = proto_tree_add_subtree(subtree, tvb, off + optoffset + 4,
4 + olen, ett_dhcpv6_option_vsoption, NULL, "option");
proto_tree_add_item(subtree_2, hf_vendoropts_enterprise_option_code, tvb, off + optoffset + 4, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree_2, hf_vendoropts_enterprise_option_length, tvb, off + optoffset + 6, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree_2, hf_vendoropts_enterprise_option_data, tvb, off + optoffset + 8, olen, ENC_NA);
optoffset += (4 + olen);
}
}
}
break;
case OPTION_INTERFACE_ID:
{
if (optlen == 0) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "INTERFACE_ID: malformed option");
break;
}
if (cablelabs_interface_id) {
gint namelen = tvb_strnlen(tvb, off, optlen)+1;
if (namelen == 0) {
proto_tree_add_item(subtree, hf_cablelabs_interface_id, tvb, off, optlen, ENC_ASCII|ENC_NA);
} else {
proto_tree_add_item(subtree, hf_cablelabs_interface_id, tvb, off, namelen-1, ENC_ASCII|ENC_NA);
temp_optlen = optlen - namelen;
off += namelen;
if (temp_optlen >= 6)
proto_tree_add_string(subtree, hf_cablelabs_interface_id_link_address, tvb, off, temp_optlen, tvb_arphrdaddr_to_str(tvb, off, 6, ARPHRD_ETHER));
}
} else {
proto_tree_add_item(subtree, hf_interface_id, tvb, off, optlen, ENC_NA);
}
}
break;
case OPTION_RECONF_MSG:
if (optlen != 1) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "RECONF_MSG: malformed option");
break;
}
proto_tree_add_item(subtree, hf_reconf_msg, tvb, off, 1, ENC_BIG_ENDIAN);
break;
case OPTION_RECONF_ACCEPT:
if (optlen)
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "RECONF_ACCEPT: malformed option");
break;
case OPTION_SIP_SERVER_D:
if (optlen > 0) {
subtree_2 = proto_tree_add_subtree(subtree, tvb, off, optlen, ett_dhcpv6_sip_server_domain_search_list_option, &ti, "SIP Servers Domain Search List");
dhcpv6_domain(subtree_2, ti, pinfo, hf_sip_server_domain_search_fqdn, tvb, off, optlen);
}
break;
case OPTION_SIP_SERVER_A:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "SIP servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_sip_server_a, tvb, off + i, 16, ENC_NA);
break;
case OPTION_DNS_SERVERS:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "DNS servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16) {
ti = proto_tree_add_item(subtree, hf_dns_servers, tvb, off + i, 16, ENC_NA);
proto_item_prepend_text(ti, " %d ", i/16 + 1);
}
break;
case OPTION_DOMAIN_LIST:
if (optlen > 0) {
subtree_2 = proto_tree_add_subtree(subtree, tvb, off, optlen, ett_dhcpv6_dns_domain_search_list_option, &ti, "DNS Domain Search List");
dhcpv6_domain(subtree_2, ti, pinfo, hf_domain_search_list_fqdn, tvb, off, optlen);
}
break;
/* NIS...: RFC 3898 */
case OPTION_NIS_SERVERS:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "NIS servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_nis_servers, tvb, off + i, 16, ENC_NA);
break;
case OPTION_NISP_SERVERS:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "NISP servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_nisp_servers, tvb, off + i, 16, ENC_NA);
break;
case OPTION_NIS_DOMAIN_NAME:
if (optlen > 0) {
subtree_2 = proto_tree_add_subtree(subtree, tvb, off, optlen, ett_dhcpv6_nis_domain_name_option, &ti, "nis-domain-name");
dhcpv6_domain(subtree_2, ti, pinfo, hf_nis_fqdn, tvb, off, optlen);
}
break;
case OPTION_NISP_DOMAIN_NAME:
if (optlen > 0) {
subtree_2 = proto_tree_add_subtree(subtree, tvb, off, optlen, ett_dhcpv6_nisp_domain_name_option, &ti, "nisp-domain-name");
dhcpv6_domain(subtree_2, ti, pinfo, hf_nisp_fqdn, tvb, off, optlen);
}
break;
case OPTION_SNTP_SERVERS:
/* Deprecated as of RFC 5908 */
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "SNTP servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16){
ti = proto_tree_add_item(subtree, hf_sntp_servers, tvb, off + i, 16, ENC_NA);
proto_item_prepend_text(ti, " %d ", i/16 + 1);
}
break;
case OPTION_LIFETIME:
if (optlen != 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "LIFETIME: malformed option");
break;
}
proto_tree_add_item(subtree, hf_opt_lifetime, tvb, off, 4, ENC_BIG_ENDIAN);
break;
/* BCMCS...: RFC 4280 */
case OPTION_BCMCS_SERVER_D:
if (optlen > 0) {
subtree_2 = proto_tree_add_subtree(subtree, tvb, off, optlen, ett_dhcpv6_bcmcs_servers_domain_search_list_option, &ti, "BCMCS Servers Domain Search List");
dhcpv6_domain(subtree_2, ti, pinfo, hf_bcmcs_servers_fqdn, tvb, off, optlen);
}
break;
case OPTION_BCMCS_SERVER_A:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "BCMCS servers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_bcmcs_servers_a, tvb, off + i, 16, ENC_NA);
break;
case OPTION_REMOTE_ID:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "REMOTE_ID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_remoteid_enterprise, tvb, off, 4, ENC_BIG_ENDIAN);
off += 4;
proto_tree_add_item(subtree, hf_remoteid_enterprise_id, tvb, off, optlen - 4, ENC_NA);
break;
case OPTION_SUBSCRIBER_ID:
if (optlen == 0) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "SUBSCRIBER_ID: malformed option");
break;
}
proto_tree_add_item(subtree, hf_subscriber_id, tvb, off, optlen, ENC_ASCII|ENC_NA);
break;
case OPTION_CLIENT_FQDN:
if (optlen < 1) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "FQDN: malformed option");
} else {
/*
* +-----+-+-+-+
* | MBZ |N|O|S|
* +-----+-+-+-+
*/
proto_tree_add_item(subtree, hf_clientfqdn_reserved, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_clientfqdn_n, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_clientfqdn_o, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_clientfqdn_s, tvb, off, 1, ENC_BIG_ENDIAN);
dhcpv6_domain(subtree, option_item, pinfo, hf_client_fqdn, tvb, off+1, optlen-1);
}
break;
case OPTION_PANA_AGENT:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "PANA agent address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_pana_agent, tvb, off + i, 16, ENC_NA);
break;
case OPTION_TIME_ZONE:
if (optlen > 0)
proto_tree_add_item(subtree, hf_opt_timezone, tvb, off, optlen, ENC_ASCII|ENC_NA);
break;
case OPTION_TZDB:
if (optlen > 0)
proto_tree_add_item(subtree, hf_opt_tzdb, tvb, off, optlen, ENC_ASCII|ENC_NA);
break;
case OPTION_LQ_QUERY:
{
guint8 query_type;
if (optlen < 17) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "LQ-QUERY: malformed option");
break;
}
query_type = tvb_get_guint8(tvb, off);
ti = proto_tree_add_item(subtree, hf_lq_query, tvb, off, 1, ENC_BIG_ENDIAN);
if ((protocol == proto_dhcpv6) &&
((query_type == LQ_QUERY_RELAYID) ||
(query_type == LQ_QUERY_LINK_ADDRESS) ||
(query_type == LQ_QUERY_REMOTEID))) {
expert_add_info(pinfo, ti, &ei_dhcpv6_bulk_leasequery_bad_query_type);
}
proto_tree_add_item(subtree, hf_lq_query_link_address, tvb, off+1, 16, ENC_NA);
temp_optlen = 17;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off + temp_optlen,
off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
}
break;
case OPTION_CLIENT_DATA:
temp_optlen = 0;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off + temp_optlen,
off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
break;
case OPTION_CLT_TIME:
if (optlen != 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "CLT_TIME: malformed option");
break;
}
proto_tree_add_item(subtree, hf_clt_time, tvb, off, 4, ENC_BIG_ENDIAN);
break;
case OPTION_LQ_RELAY_DATA:
if (optlen < 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "LQ_RELAY_DATA: malformed option");
break;
}
if (protocol == proto_dhcpv6_bulk_leasequery) {
expert_add_info(pinfo, option_item, &ei_dhcpv6_bulk_leasequery_no_lq_relay_data);
}
proto_tree_add_item(subtree, hf_lq_relay_data_peer_addr, tvb, off, 16, ENC_NA);
proto_tree_add_item(subtree, hf_lq_relay_data_msg, tvb, off+16, optlen - 16, ENC_ASCII|ENC_NA);
break;
case OPTION_LQ_CLIENT_LINK:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "LQ client links address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_lq_client_link, tvb, off + i, 16, ENC_NA);
break;
case OPTION_CAPWAP_AC_V6:
if (optlen % 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "CAPWAP Access Controllers address: malformed option");
break;
}
for (i = 0; i < optlen; i += 16)
proto_tree_add_item(subtree, hf_capwap_ac_v6, tvb, off + i, 16, ENC_NA);
break;
case OPTION_AFTR_NAME:
{
dhcpv6_domain(subtree, option_item, pinfo, hf_aftr_name, tvb, off, optlen);
break;
}
case OPTION_IAPREFIX:
if (optlen < 25) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "IAPREFIX: malformed option");
break;
}
if (tvb_get_ntohl(tvb, off) == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format_value(subtree, hf_iaprefix_pref_lifetime, tvb, off,
4, DHCPV6_LEASEDURATION_INFINITY, "infinity");
} else {
proto_tree_add_item(subtree, hf_iaprefix_pref_lifetime, tvb, off,
4, ENC_BIG_ENDIAN);
}
if (tvb_get_ntohl(tvb, off + 4) == DHCPV6_LEASEDURATION_INFINITY) {
proto_tree_add_uint_format_value(subtree, hf_iaprefix_valid_lifetime, tvb, off+4,
4, DHCPV6_LEASEDURATION_INFINITY, "infinity");
} else {
proto_tree_add_item(subtree, hf_iaprefix_valid_lifetime, tvb, off+4,
4, ENC_BIG_ENDIAN);
}
proto_tree_add_item(subtree, hf_iaprefix_pref_len, tvb, off+8, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_iaprefix_pref_addr, tvb, off+9, 16, ENC_NA);
temp_optlen = 25;
while ((optlen - temp_optlen) > 0) {
temp_optlen += dhcpv6_option(tvb, pinfo, subtree,
off+temp_optlen, off + optlen, at_end, protocol, hpi);
if (*at_end) {
/* Bad option - just skip to the end */
temp_optlen = optlen;
}
}
break;
case OPTION_MIP6_HA:
if (optlen != 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "MIP6_HA: malformed option");
break;
}
proto_tree_add_item(subtree, hf_mip6_ha, tvb, off, 16, ENC_NA);
break;
case OPTION_MIP6_HOA:
if (optlen != 16) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "MIP6_HOA: malformed option");
break;
}
proto_tree_add_item(subtree, hf_mip6_hoa, tvb, off, 16, ENC_NA);
break;
case OPTION_NAI:
if (optlen < 4) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "NAI: malformed option");
break;
}
proto_tree_add_item(subtree, hf_nai, tvb, off, optlen - 2, ENC_ASCII|ENC_NA);
break;
case OPTION_PD_EXCLUDE:
if ((optlen < 2) || (optlen > 17)) {
expert_add_info_format(pinfo, option_item, &ei_dhcpv6_malformed_option, "PD_EXCLUDE: malformed option");
break;
}
proto_tree_add_item(subtree, hf_pd_exclude_pref_len, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(subtree, hf_pd_exclude_subnet_id , tvb, off+1, optlen-1, ENC_NA);
break;
}
return 4 + optlen;
}
/* May be called recursively */
static void
dissect_dhcpv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
int off, int eoff, hopcount_info hpi)
{
proto_tree *bp_tree = NULL;
proto_item *ti;
guint8 msgtype;
gboolean at_end;
msgtype = tvb_get_guint8(tvb, off);
col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_ext(msgtype, &msgtype_vals_ext, "Message Type %u"));
if (tree) {
ti = proto_tree_add_item(tree, proto_dhcpv6, tvb, off, eoff - off, ENC_NA);
bp_tree = proto_item_add_subtree(ti, ett_dhcpv6);
}
if ((msgtype == RELAY_FORW) || (msgtype == RELAY_REPLY)) {
const guint8 previous_hopcount = hpi.hopcount;
proto_item *previous_pi = hpi.pi;
if (tree) {
proto_tree_add_item(bp_tree, hf_dhcpv6_msgtype, tvb, off, 1, ENC_BIG_ENDIAN);
hpi.pi = proto_tree_add_item(bp_tree, hf_dhcpv6_hopcount, tvb, off + 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(bp_tree, hf_dhcpv6_linkaddr, tvb, off + 2, 16, ENC_NA);
proto_tree_add_item(bp_tree, hf_dhcpv6_peeraddr, tvb, off + 18, 16, ENC_NA);
}
/* Check the hopcount not exceed the HOP_COUNT_LIMIT */
hpi.hopcount = tvb_get_guint8(tvb, off + 1);
if (hpi.hopcount > HOP_COUNT_LIMIT) {
expert_add_info_format(pinfo, hpi.pi, &ei_dhcpv6_error_hopcount, "Hopcount (%d) exceeds the maximum limit HOP_COUNT_LIMIT (%d)", hpi.hopcount, HOP_COUNT_LIMIT);
}
/* Check hopcount is correctly incremented by 1 */
if (hpi.relay_message_previously_detected && hpi.hopcount != previous_hopcount - 1) {
expert_add_info_format(pinfo, previous_pi, &ei_dhcpv6_error_hopcount, "hopcount is not correctly incremented by 1 (expected : %d, actual : %d)", hpi.hopcount + 1, previous_hopcount);
}
hpi.relay_message_previously_detected = TRUE;
col_append_fstr(pinfo->cinfo, COL_INFO, "L: %s ", tvb_ip6_to_str(tvb, off + 2));
off += 34;
} else {
/* Check the inner hopcount equals 0 */
if (hpi.hopcount) {
expert_add_info_format(pinfo, hpi.pi, &ei_dhcpv6_error_hopcount, "Hopcount of most inner message has to equal 0 instead of %d", hpi.hopcount);
}
if (tree) {
proto_tree_add_item(bp_tree, hf_dhcpv6_msgtype, tvb, off, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(bp_tree, hf_dhcpv6_xid, tvb, off + 1, 3, ENC_BIG_ENDIAN);
}
col_append_fstr(pinfo->cinfo, COL_INFO, "XID: 0x%x ", tvb_get_ntoh24(tvb, off + 1));
off += 4;
}
at_end = FALSE;
while ((off < eoff) && !at_end)
off += dhcpv6_option(tvb, pinfo, bp_tree, off, eoff, &at_end, proto_dhcpv6, hpi);
}
static int
dissect_dhcpv6_stream(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
hopcount_info hpi;
initialize_hopount_info(&hpi);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DHCPv6");
col_clear(pinfo->cinfo, COL_INFO);
dissect_dhcpv6(tvb, pinfo, tree, 0, tvb_reported_length(tvb), hpi);
return tvb_captured_length(tvb);
}
static guint
get_dhcpv6_bulk_leasequery_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb,
int offset, void *data _U_)
{
return (tvb_get_ntohs(tvb, offset)+2);
}
static int
dissect_dhcpv6_bulk_leasequery_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti;
proto_tree *bulk_tree, *option_tree;
gint offset = 0, end;
guint16 size, trans_id;
guint8 msg_type;
gboolean at_end = FALSE;
hopcount_info hpi;
initialize_hopount_info(&hpi);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DHCPv6 BulkLease");
col_clear(pinfo->cinfo, COL_INFO);
ti = proto_tree_add_item(tree, proto_dhcpv6_bulk_leasequery, tvb, 0, -1, ENC_NA );
bulk_tree = proto_item_add_subtree(ti, ett_dhcpv6_bulk_leasequery);
size = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(bulk_tree, hf_dhcpv6_bulk_leasequery_size, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
msg_type = tvb_get_guint8( tvb, offset );
ti = proto_tree_add_item(bulk_tree, hf_dhcpv6_bulk_leasequery_msgtype, tvb, offset, 1, ENC_BIG_ENDIAN);
if ((msg_type != LEASEQUERY) &&
(msg_type != LEASEQUERY_REPLY) &&
(msg_type != LEASEQUERY_DONE) &&
(msg_type != LEASEQUERY_DATA))
expert_add_info_format(pinfo, ti, &ei_dhcpv6_bulk_leasequery_bad_msg_type,
"Message Type %d not allowed by DHCPv6 Bulk Leasequery", msg_type);
offset += 1;
proto_tree_add_item(bulk_tree, hf_dhcpv6_bulk_leasequery_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
trans_id = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(bulk_tree, hf_dhcpv6_bulk_leasequery_trans_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
col_add_fstr(pinfo->cinfo, COL_INFO, "%s, Transaction ID: %5u",
val_to_str_ext_const(msg_type, &msgtype_vals_ext, "Unknown"), trans_id);
option_tree = proto_tree_add_subtree(bulk_tree, tvb, offset, -1, ett_dhcpv6_bulk_leasequery_options, NULL, "DHCPv6 Options");
end = size + 2;
while ((offset < end) && !at_end)
offset += dhcpv6_option(tvb, pinfo, option_tree, offset,
end, &at_end, proto_dhcpv6_bulk_leasequery, hpi);
return tvb_reported_length(tvb);
}
static int
dissect_dhcpv6_bulk_leasequery(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
tcp_dissect_pdus(tvb, pinfo, tree, dhcpv6_bulk_leasequery_desegment, 2,
get_dhcpv6_bulk_leasequery_pdu_len, dissect_dhcpv6_bulk_leasequery_pdu, data);
return tvb_reported_length(tvb);
}
void
proto_register_dhcpv6(void)
{
module_t *bulkquery_module;
module_t *dhcpv6_module;
static hf_register_info hf[] = {
/* DHCPv6 header */
{ &hf_dhcpv6_msgtype,
{ "Message type", "dhcpv6.msgtype", FT_UINT8, BASE_DEC | BASE_EXT_STRING, &msgtype_vals_ext, 0x0, NULL, HFILL }},
{ &hf_dhcpv6_hopcount,
{ "Hopcount", "dhcpv6.hopcount", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_dhcpv6_xid,
{ "Transaction ID", "dhcpv6.xid", FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL}},
{ &hf_dhcpv6_linkaddr,
{ "Link address", "dhcpv6.linkaddr", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL}},
{ &hf_dhcpv6_peeraddr,
{ "Peer address", "dhcpv6.peeraddr", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL}},
/* Generic option stuff */
{ &hf_option_type,
{ "Option", "dhcpv6.option.type", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &opttype_vals_ext, 0x0, NULL, HFILL}},
{ &hf_option_length,
{ "Length", "dhcpv6.option.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
{ &hf_option_value,
{ "Value", "dhcpv6.option.value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
/* Individual options */
{ &hf_clientfqdn_reserved,
{ "Reserved", "dhcpv6.clientfqdn.reserved", FT_UINT8, BASE_HEX, NULL, 0xF8, NULL, HFILL}},
{ &hf_clientfqdn_n,
{ "N bit", "dhcpv6.clientfqdn.n", FT_BOOLEAN, 8, TFS(&fqdn_n), 0x4, "Whether the server SHOULD NOT perform any DNS updates", HFILL}},
{ &hf_clientfqdn_o,
{ "O bit", "dhcpv6.clientfqdn.o", FT_BOOLEAN, 8, TFS(&fqdn_o), 0x2, "Whether the server has overridden the client's preference for the S bit. Must be 0 when sent from client", HFILL}},
{ &hf_clientfqdn_s,
{ "S bit", "dhcpv6.clientfqdn.s", FT_BOOLEAN, 8, TFS(&fqdn_s), 0x1, "Whether the server SHOULD or SHOULD NOT perform the AAAA RR (FQDN-to-address) DNS updates", HFILL}},
{ &hf_remoteid_enterprise,
{ "Enterprise ID", "dhcpv6.remoteid.enterprise", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0, "RemoteID Enterprise Number", HFILL }},
{ &hf_duid_bytes,
{ "DUID", "dhcpv6.duid.bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_duid_type,
{ "DUID Type", "dhcpv6.duid.type", FT_UINT16, BASE_DEC, VALS(duidtype_vals), 0x0, NULL, HFILL}},
{ &hf_duidllt_time,
{ "DUID Time", "dhcpv6.duidllt.time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}},
{ &hf_duidllt_link_layer_addr,
{ "Link-layer address", "dhcpv6.duidllt.link_layer_addr", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_duidllt_hwtype,
{ "Hardware type", "dhcpv6.duidllt.hwtype", FT_UINT16, BASE_DEC, VALS(arp_hrd_vals), 0, "DUID LLT Hardware Type", HFILL }},
{ &hf_duidll_hwtype,
{ "Hardware type", "dhcpv6.duidll.hwtype", FT_UINT16, BASE_DEC, VALS(arp_hrd_vals), 0, "DUID LL Hardware Type", HFILL }},
{ &hf_duiden_enterprise,
{ "Enterprise ID", "dhcpv6.duiden.enterprise", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0, "DUID EN Enterprise Number", HFILL }},
{ &hf_duiden_identifier,
{ "Identifier", "dhcpv6.duiden.identifier", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_duidll_link_layer_addr,
{ "Link-layer address", "dhcpv6.duidll.link_layer_addr", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_duiduuid_bytes,
{ "UUID", "dhcpv6.duiduuid.bytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_iaid,
{ "IAID", "dhcpv6.iaid", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_iaid_t1,
{ "T1", "dhcpv6.iaid.t1", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_iaid_t2,
{ "T2", "dhcpv6.iaid.t2", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_iata,
{ "IATA", "dhcpv6.iata", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_iaaddr_ip,
{ "IPv6 address", "dhcpv6.iaaddr.ip", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_iaaddr_pref_lifetime,
{ "Preferred lifetime", "dhcpv6.iaaddr.pref_lifetime", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_iaaddr_valid_lifetime,
{ "Valid lifetime", "dhcpv6.iaaddr.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_requested_option_code,
{ "Requested Option code", "dhcpv6.requested_option_code", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &opttype_vals_ext, 0, NULL, HFILL }},
{ &hf_option_preference,
{ "Pref-value", "dhcpv6.option_preference", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_elapsed_time,
{ "Elapsed time", "dhcpv6.elapsed_time", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_auth_protocol,
{ "Protocol", "dhcpv6.auth.protocol", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_auth_algorithm,
{ "Algorithm", "dhcpv6.auth.algorithm", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_auth_rdm,
{ "RDM", "dhcpv6.auth.rdm", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_auth_replay_detection,
{ "Replay Detection", "dhcpv6.auth.replay_detection", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_auth_info,
{ "Authentication Information", "dhcpv6.auth.info", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_opt_unicast,
{ "IPv6 address", "dhcpv6.unicast", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_opt_status_code,
{ "Status Code", "dhcpv6.status_code", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &statuscode_vals_ext, 0, NULL, HFILL }},
{ &hf_opt_status_msg,
{ "Status Message", "dhcpv6.status_msg", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_vendorclass_enterprise,
{ "Enterprise ID", "dhcpv6.vendorclass.enterprise", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0, "Vendor Class Enterprise Number", HFILL }},
{ &hf_vendorclass_data,
{ "vendor-class-data", "dhcpv6.vendorclass.data", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_vendoropts_enterprise,
{ "Enterprise ID", "dhcpv6.vendoropts.enterprise", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &sminmpec_values_ext, 0, "Vendor opts Enterprise Number", HFILL }},
{ &hf_vendoropts_enterprise_option_code,
{ "Option code", "dhcpv6.vendoropts.enterprise.option_code", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_vendoropts_enterprise_option_length,
{ "Option length", "dhcpv6.vendoropts.enterprise.option_length", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_vendoropts_enterprise_option_data,
{ "Option data", "dhcpv6.vendoropts.enterprise.option_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_interface_id,
{ "Interface-ID", "dhcpv6.interface_id", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_reconf_msg,
{ "Reconfigure message type", "dhcpv6.reconf_msg", FT_UINT8, BASE_DEC | BASE_EXT_STRING, &msgtype_vals_ext, 0, NULL, HFILL }},
{ &hf_sip_server_domain_search_fqdn,
{ "SIP Server Domain Search FQDN", "dhcpv6.sip_server_domain_search_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_sip_server_a,
{ "SIP server address", "dhcpv6.sip_server_a", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_dns_servers,
{ "DNS server address", "dhcpv6.dns_server", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_domain_search_list_fqdn,
{ "Domain Search List FQDN", "dhcpv6.domain_search_list_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_nis_servers,
{ "NIS server address", "dhcpv6.nis_server", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_nisp_servers,
{ "NISP server address", "dhcpv6.nisp_server", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_nis_fqdn,
{ "NIS FQDN", "dhcpv6.nis_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_nisp_fqdn,
{ "NISP FQDN", "dhcpv6.nisp_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_sntp_servers,
{ "SNTP server address", "dhcpv6.sntp_server", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_opt_lifetime,
{ "Lifetime", "dhcpv6.lifetime", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_bcmcs_servers_fqdn,
{ "BCMCS server FQDN", "dhcpv6.bcmcs_server_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_bcmcs_servers_a,
{ "BCMCS server address", "dhcpv6.bcmcs_server_a", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_remoteid_enterprise_id,
{ "Remote-ID", "dhcpv6.remoteid_enterprise_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_subscriber_id,
{ "Subscriber-ID", "dhcpv6.subscriber_id", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_client_fqdn,
{ "Client FQDN", "dhcpv6.client_fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_pana_agent,
{ "PANA agents address", "dhcpv6.pana_agent", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_opt_timezone,
{ "Time-zone", "dhcpv6.timezone", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_opt_tzdb,
{ "TZ-database", "dhcpv6.tzdb", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_lq_query,
{ "Query-type", "dhcpv6.lq_query", FT_UINT8, BASE_DEC, VALS(lq_query_vals), 0, NULL, HFILL }},
{ &hf_lq_query_link_address,
{ "Link address", "dhcpv6.lq_query_link_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_clt_time,
{ "Clt_time", "dhcpv6.clt_time", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_lq_relay_data_peer_addr,
{ "Peer address", "dhcpv6.lq_relay_data_peer_addr", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_lq_relay_data_msg,
{ "DHCPv6 relay message", "dhcpv6.lq_relay_data_msg", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_lq_client_link,
{ "LQ client links address", "dhcpv6.lq_client_link", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_capwap_ac_v6,
{ "CAPWAP Access Controllers address", "dhcpv6.capwap_ac_v6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_aftr_name,
{ "DS-Lite AFTR Name", "dhcpv6.aftr_name", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_iaprefix_pref_lifetime,
{ "Preferred lifetime", "dhcpv6.iaprefix.pref_lifetime", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_iaprefix_valid_lifetime,
{ "Valid lifetime", "dhcpv6.iaprefix.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL}},
{ &hf_iaprefix_pref_len,
{ "Prefix length", "dhcpv6.iaprefix.pref_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_iaprefix_pref_addr,
{ "Prefix address", "dhcpv6.iaprefix.pref_addr", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_mip6_ha,
{ "Home Agent", "dhcpv6.mip6_home_agent", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_mip6_hoa,
{ "Home Address", "dhcpv6.mip6_home_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_nai,
{ "NAI", "dhcpv6.nai", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_pd_exclude_pref_len,
{ "Prefix length", "dhcpv6.pd_exclude.pref_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_pd_exclude_subnet_id,
{ "IPv6 subnet ID", "dhcpv6.pd_exclude.subnet_id", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_option_ntpserver_type,
{ "Suboption", "dhcpv6.ntpserver.option.type", FT_UINT16, BASE_DEC, VALS(ntp_server_opttype_vals), 0x0, NULL, HFILL}},
{ &hf_option_ntpserver_length,
{ "Length", "dhcpv6.ntpserver.option.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}},
{ &hf_option_ntpserver_addr,
{ "NTP Server Address", "dhcpv6.ntpserver.addr", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_option_ntpserver_mc_addr,
{ "NTP Multicast Address", "dhcpv6.ntpserver.mc_addr", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_option_ntpserver_fqdn,
{ "NTP Server FQDN", "dhcpv6.ntpserver.fqdn", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_packetcable_ccc_suboption,
{ "Sub element", "dhcpv6.packetcable.ccc.suboption", FT_UINT16, BASE_DEC, VALS(pkt_ccc_opt_vals), 0, NULL, HFILL }},
{ &hf_packetcable_ccc_pri_dhcp,
{ "Primary DHCP", "dhcpv6.packetcable.ccc.pri_dhcp", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_ccc_sec_dhcp,
{ "Secondary DHCP", "dhcpv6.packetcable.ccc.sec_dhcp", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_suboption,
{ "Sub element", "dhcpv6.packetcable.cccV6.suboption", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &pkt_cccV6_opt_vals_ext, 0, NULL, HFILL }},
{ &hf_modem_capabilities_encoding_type,
{ "Type", "dhcpv6.docsis.cccV6.tlv5.suboption", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &modem_capabilities_encoding_ext, 0, NULL, HFILL }},
{ &hf_eue_capabilities_encoding_type,
{ "Type", "dhcpv6.packetcable.cccV6.tlv5.suboption", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &eue_capabilities_encoding_ext, 0, NULL, HFILL }},
{ &hf_capabilities_encoding_length,
{ "Length", "dhcpv6.cccV6.tlv5.suboption.length", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_capabilities_encoding_bytes,
{ "Value", "dhcpv6.cccV6.tlv5.suboption.value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_capabilities_encoding_number,
{ "Value", "dhcpv6.cccV6.tlv5.suboption.value_number", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_pri_dss,
{ "Primary SSID", "dhcpv6.packetcable.cccV6.pri_dss", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_sec_dss,
{ "Secondary SSID", "dhcpv6.packetcable.cccV6.sec_dss", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_prov_srv_type,
{ "Type", "dhcpv6.packetcable.cccV6.prov_srv.type", FT_UINT8, BASE_DEC, VALS(pkt_cccV6_prov_srv_type_vals), 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_prov_srv_fqdn,
{ "FQDN", "dhcpv6.packetcable.cccV6.prov_srv.fqdn", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_prov_srv_ipv6,
{ "IPv6 address", "dhcpv6.packetcable.cccV6.prov_srv.ipv6", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_as_krb_nominal_timeout,
{ "Nominal Timeout", "dhcpv6.packetcable.cccV6.as_krb.nominal_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_as_krb_max_timeout,
{ "Maximum Timeout", "dhcpv6.packetcable.cccV6.as_krb.max_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_as_krb_max_retry_count,
{ "Maximum Retry Count", "dhcpv6.packetcable.cccV6.as_krb.max_retry_count", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_ap_krb_nominal_timeout,
{ "Nominal Timeout", "dhcpv6.packetcable.cccV6.ap_krb.nominal_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_ap_krb_max_timeout,
{ "Maximum Timeout", "dhcpv6.packetcable.cccV6.ap_krb.max_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_ap_krb_max_retry_count,
{ "Maximum Retry Count", "dhcpv6.packetcable.cccV6.ap_krb.max_retry_count", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_krb_realm,
{ "KRB Realm", "dhcpv6.packetcable.cccV6.krb_realm", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_tgt_flag,
{ "TGT Flags", "dhcpv6.packetcable.cccV6.tgt_flag", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_tgt_flag_fetch,
{ "Fetch TGT", "dhcpv6.packetcable.cccV6.tgt_flag.fetch", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0x01, NULL, HFILL }},
{ &hf_packetcable_cccV6_prov_timer,
{ "Provisioning timer", "dhcpv6.packetcable.cccV6.prov_timer", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_sec_tcm,
{ "SEC TCM Flags", "dhcpv6.packetcable.cccV6.sec_tcm", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
{ &hf_packetcable_cccV6_sec_tcm_provisioning_server,
{ "Provisioning Server", "dhcpv6.packetcable.cccV6.sec_tcm.provisioning_server", FT_BOOLEAN, 16, TFS(&tfs_on_off), 0x01, NULL, HFILL }},
{ &hf_packetcable_cccV6_sec_tcm_call_manager_server,
{ "Call Manager Servers", "dhcpv6.packetcable.cccV6.tgt_flag.call_manager_server", FT_BOOLEAN, 16, TFS(&tfs_on_off), 0x02, NULL, HFILL }},
{ &hf_cablelabs_opts,
{ "Suboption", "dhcpv6.cablelabs.opt", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &cl_vendor_subopt_values_ext, 0, NULL, HFILL }},
{ &hf_cablelabs_ipv6_server,
{ "IPv6 address", "dhcpv6.cablelabs.ipv6_server", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL}},
{ &hf_cablelabs_docsis_version_number,
{ "DOCSIS Version Number", "dhcpv6.cablelabs.docsis_version_number", FT_UINT16, BASE_CUSTOM, CF_FUNC(cablelabs_fmt_docsis_version), 0x0, NULL, HFILL}},
{ &hf_cablelabs_interface_id,
{ "Interface-ID", "dhcpv6.cablelabs.interface_id", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
{ &hf_cablelabs_interface_id_link_address,
{ "Link Address", "dhcpv6.cablelabs.interface_id_link_address", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_dhcpv6,
&ett_dhcpv6_option,
&ett_dhcpv6_option_vsoption,
&ett_dhcpv6_vendor_option,
&ett_dhcpv6_pkt_option,
&ett_dhcpv6_netserver_option,
&ett_dhcpv6_tlv5_type,
&ett_dhcpv6_sip_server_domain_search_list_option,
&ett_dhcpv6_dns_domain_search_list_option,
&ett_dhcpv6_nis_domain_name_option,
&ett_dhcpv6_nisp_domain_name_option,
&ett_dhcpv6_bcmcs_servers_domain_search_list_option,
};
static ei_register_info ei[] = {
{ &ei_dhcpv6_bogus_length, { "dhcpv6.bogus_length", PI_MALFORMED, PI_ERROR, "Bogus length", EXPFILL }},
{ &ei_dhcpv6_malformed_option, { "dhcpv6.malformed_option", PI_MALFORMED, PI_ERROR, "Malformed option", EXPFILL }},
{ &ei_dhcpv6_no_suboption_len, { "dhcpv6.no_suboption_len", PI_PROTOCOL, PI_WARN, "no room left in option for suboption length", EXPFILL }},
{ &ei_dhcpv6_invalid_time_value, { "dhcpv6.invalid_time_value", PI_PROTOCOL, PI_WARN, "Invalid time value", EXPFILL }},
{ &ei_dhcpv6_invalid_type, { "dhcpv6.invalid_type", PI_PROTOCOL, PI_WARN, "Invalid type", EXPFILL }},
{ &ei_dhcpv6_malformed_dns, { "dhcpv6.malformed_dns", PI_PROTOCOL, PI_WARN, "Malformed DNS name record (MS Vista client?)", EXPFILL }},
{ &ei_dhcpv6_error_hopcount, { "dhcpv6.error_hopcount", PI_PROTOCOL, PI_WARN, "Detected error on hop-count", EXPFILL }},
};
static hf_register_info bulk_leasequery_hf[] = {
{ &hf_dhcpv6_bulk_leasequery_size,
{ "Message size", "dhcpv6.bulk_leasequery.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dhcpv6_bulk_leasequery_msgtype,
{ "Message type", "dhcpv6.bulk_leasequery.msgtype", FT_UINT8, BASE_DEC | BASE_EXT_STRING, &msgtype_vals_ext, 0x0, NULL, HFILL }},
{ &hf_dhcpv6_bulk_leasequery_reserved,
{ "Reserved", "dhcpv6.bulk_leasequery.reserved", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dhcpv6_bulk_leasequery_trans_id,
{ "Transaction ID", "dhcpv6.bulk_leasequery.trans_id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
};
static gint *ett_bulk_leasequery[] = {
&ett_dhcpv6_bulk_leasequery,
&ett_dhcpv6_bulk_leasequery_options
};
static ei_register_info ei_bulk_leasequery[] = {
{ &ei_dhcpv6_bulk_leasequery_bad_query_type, { "dhcpv6.bulk_leasequery.bad_query_type", PI_MALFORMED, PI_WARN, "LQ-QUERY: Query types only supported by Bulk Leasequery", EXPFILL }},
{ &ei_dhcpv6_bulk_leasequery_no_lq_relay_data, { "dhcpv6.bulk_leasequery.no_lq_relay_data", PI_MALFORMED, PI_WARN, "LQ_RELAY_DATA: Not allowed in Bulk Leasequery", EXPFILL }},
{ &ei_dhcpv6_bulk_leasequery_bad_msg_type, { "dhcpv6.bulk_leasequery.bad_msg_type", PI_MALFORMED, PI_WARN, "Message Type %d not allowed by DHCPv6 Bulk Leasequery", EXPFILL }},
};
expert_module_t *expert_dhcpv6;
expert_module_t *expert_dhcpv6_bulk_leasequery;
proto_dhcpv6 = proto_register_protocol("DHCPv6", "DHCPv6", "dhcpv6");
proto_register_field_array(proto_dhcpv6, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_dhcpv6 = expert_register_protocol(proto_dhcpv6);
expert_register_field_array(expert_dhcpv6, ei, array_length(ei));
proto_dhcpv6_bulk_leasequery = proto_register_protocol("DHCPv6 Bulk Leasequery", "DHCPv6 Bulk Leasequery", "dhcpv6.bulk_leasequery");
proto_register_field_array(proto_dhcpv6_bulk_leasequery, bulk_leasequery_hf, array_length(bulk_leasequery_hf));
proto_register_subtree_array(ett_bulk_leasequery, array_length(ett_bulk_leasequery));
expert_dhcpv6_bulk_leasequery = expert_register_protocol(proto_dhcpv6_bulk_leasequery);
expert_register_field_array(expert_dhcpv6_bulk_leasequery, ei_bulk_leasequery, array_length(ei_bulk_leasequery));
/* Allow other dissectors to find this one by name. */
dhcpv6_handle = register_dissector("dhcpv6", dissect_dhcpv6_stream, proto_dhcpv6);
dhcpv6_module = prefs_register_protocol(proto_dhcpv6, NULL);
prefs_register_bool_preference(dhcpv6_module, "cablelabs_interface_id",
"Dissect Option 18 (Interface-Id) as CableLab option",
"Whether Option 18 is dissected as CableLab or RFC 3315",
&cablelabs_interface_id);
bulkquery_module = prefs_register_protocol(proto_dhcpv6_bulk_leasequery, NULL);
prefs_register_bool_preference(bulkquery_module, "desegment",
"Desegment all Bulk Leasequery messages spanning multiple TCP segments",
"Whether the Bulk Leasequery dissector should desegment all messages spanning multiple TCP segments",
&dhcpv6_bulk_leasequery_desegment);
}
void
proto_reg_handoff_dhcpv6(void)
{
dissector_handle_t dhcpv6_bulkquery_handle;
dissector_add_uint("udp.port", UDP_PORT_DHCPV6_DOWNSTREAM, dhcpv6_handle);
dissector_add_uint("udp.port", UDP_PORT_DHCPV6_UPSTREAM, dhcpv6_handle);
dhcpv6_bulkquery_handle = create_dissector_handle(dissect_dhcpv6_bulk_leasequery,
proto_dhcpv6_bulk_leasequery);
dissector_add_uint("tcp.port", UDP_PORT_DHCPV6_UPSTREAM, dhcpv6_bulkquery_handle);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/