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Bootp: Adding some DHCP options 

Used Ref:
* https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml
* RFC 6225: Dynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration Information
* RFC 6704: Forcerenew Nonce Authentication
* RFC 6731: Improved Recursive DNS Server Selection for Multi-Interfaced Nodes
* RFC 6926: DHCPv4 Bulk Leasequery
* RFC 7291: DHCP Options for the Port Control Protocol (PCP)
* RFC 7618: Dynamic Allocation of Shared IPv4 Addresses

Change-Id: Ied53f88b2018f1d054a8ba22f1a1d6f7c075621a
Reviewed-on: https://code.wireshark.org/review/26063
Reviewed-by: Craig Jackson <cejackson51@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This commit is contained in:
Uli Heilmeier 2018-02-22 22:36:06 +01:00 committed by Anders Broman
parent ba4ff84e94
commit 20d7254cb6
1 changed files with 324 additions and 15 deletions
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339
epan/dissectors/packet-bootp.c
View File

@ -52,7 +52,13 @@
* RFC 5223: Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)
* RFC 5417: CAPWAP Access Controller DHCP Option
* RFC 5969: IPv6 Rapid Deployment on IPv4 Infrastructures (6rd)
* RFC 6225: Dynamic Host Configuration Protocol Options for Coordinate-Based Location Configuration Information
* RFC 6607: Virtual Subnet Selection Options for DHCPv4 and DHCPv6
* RFC 6704: Forcerenew Nonce Authentication
* RFC 6731: Improved Recursive DNS Server Selection for Multi-Interfaced Nodes
* RFC 6926: DHCPv4 Bulk Leasequery
* RFC 7291: DHCP Options for the Port Control Protocol (PCP)
* RFC 7618: Dynamic Allocation of Shared IPv4 Addresses
* RFC 7710: Captive-Portal Identification Using DHCP or Router Advertisements (RAs)
* draft-ietf-dhc-fqdn-option-07.txt
* TFTP Server Address Option for DHCPv4 [draft-raj-dhc-tftp-addr-option-06.txt: http://tools.ietf.org/html/draft-raj-dhc-tftp-addr-option-06]
@ -532,7 +538,27 @@ static int hf_bootp_option125_cl_modem_capabilities = -1; /* 125:CL 5 */
static int hf_bootp_option_subnet_selection_option = -1; /* 118 */
static int hf_bootp_option_lost_server_domain_name = -1; /* 137 */
static int hf_bootp_option_capwap_access_controller = -1; /* 138 */
static int hf_bootp_option_andsf_server = -1; /* 142 */
static int hf_bootp_option_forcerenew_nonce_algo = -1; /* 145 */
static int hf_bootp_option_rdnss_reserved = -1; /* 146 */
static int hf_bootp_option_rdnss_pref = -1; /* 146 */
static int hf_bootp_option_rdnss_prim_dns_server = -1; /* 146 */
static int hf_bootp_option_rdnss_sec_dns_server = -1; /* 146 */
static int hf_bootp_option_rdnss_domain = -1; /* 146 */
static int hf_bootp_option_tftp_server_address = -1; /* 150 */
static int hf_bootp_option_bulk_lease_status_code = -1; /* 151 */
static int hf_bootp_option_bulk_lease_status_message = -1; /* 151 */
static int hf_bootp_option_bulk_lease_base_time = -1; /* 152 */
static int hf_bootp_option_bulk_lease_start_time_of_state = -1; /* 153 */
static int hf_bootp_option_bulk_lease_query_start = -1; /* 154 */
static int hf_bootp_option_bulk_lease_query_end = -1; /* 155 */
static int hf_bootp_option_bulk_lease_dhcp_state = -1; /* 156 */
static int hf_bootp_option_bulk_lease_data_source = -1; /* 157 */
static int hf_bootp_option_pcp_list_length = -1; /* 158 */
static int hf_bootp_option_pcp_server = -1; /* 158 */
static int hf_bootp_option_portparams_offset = -1; /* 159 */
static int hf_bootp_option_portparams_psid_length = -1; /* 159 */
static int hf_bootp_option_portparams_psid = -1; /* 159 */
static int hf_bootp_option_captive_portal = -1; /* 160 */
static int hf_bootp_option_mudurl = -1; /* 161 */
static int hf_bootp_option_pxe_config_file = -1; /* 209 */
@ -601,6 +627,7 @@ static gint ett_bootp_o43_bsdp_attributes = -1;
static gint ett_bootp_o43_bsdp_image_desc_list = -1;
static gint ett_bootp_o43_bsdp_image_desc = -1;
static gint ett_bootp_o43_bsdp_attributes_flags = -1;
static gint ett_bootp_option158_pcp_list = -1;
static expert_field ei_bootp_bad_length = EI_INIT;
static expert_field ei_bootp_bad_bitfield = EI_INIT;
@ -852,6 +879,40 @@ static const value_string duidtype_vals[] =
{ 0, NULL }
};
static const value_string forcerenew_nonce_algo_vals[] = {
{ 1, "HMAC-MD5" },
{ 0, NULL },
};
static const value_string rdnss_pref_vals[] = {
{ 0, "Medium" },
{ 1, "High" },
{ 2, "Reserved" },
{ 3, "Low" },
{ 0, NULL },
};
static const value_string bulk_lease_dhcp_status_code_vals[] = {
{ 0, "Success" },
{ 1, "UpsecFail" },
{ 2, "QueryTerminated" },
{ 3, "MalformedQuery" },
{ 4, "NotAllowed" },
{ 0, NULL },
};
static const value_string bulk_lease_dhcp_state_vals[] = {
{ 1, "Available" },
{ 2, "Active" },
{ 3, "Expired" },
{ 4, "Released" },
{ 5, "Abandoned" },
{ 6, "Reset" },
{ 7, "Remote" },
{ 8, "Transitioning" },
{ 0, NULL },
};
static gboolean novell_string = FALSE;
static guint bootp_uuid_endian = ENC_LITTLE_ENDIAN;
@ -936,6 +997,11 @@ static const true_false_string tfs_isns_functions_sec_distrib = {
"By other means",
};
static const true_false_string tfs_bulk_lease_data_source = {
"Remote",
"Local"
};
enum field_type {
special,
none,
@ -1202,7 +1268,7 @@ static const string_string option242_avaya_static_vals[] = {
#define BOOTP_OPT_NUM 256
/* All of the options that have a "basic" type that can be handled by dissect_bootpopt_basic_type() */
#define BOOTP_OPTION_BASICTYPE_RANGE "1-20,22-32,34-42,44-51,53-54,56-59,64-76,86-87,91-93,100-101,112-113,116,118,137-138,150,161,209-210,252"
#define BOOTP_OPTION_BASICTYPE_RANGE "1-20,22-32,34-42,44-51,53-54,56-59,64-76,86-87,91-93,100-101,112-113,116,118,137-138,142,150,153,156-157,161,209-210,252"
/* Re-define structure. Values to be updated by bootp_init_protocol */
static struct opt_info bootp_opt[BOOTP_OPT_NUM];
@ -1350,24 +1416,24 @@ static struct opt_info default_bootp_opt[BOOTP_OPT_NUM] = {
/* 139 */ { "IPv4 Address-MoS", opaque, NULL },
/* 140 */ { "IPv4 FQDN-MoS", opaque, NULL },
/* 141 */ { "SIP UA Configuration Domains", opaque, NULL },
/* 142 */ { "Unassigned", opaque, NULL },
/* 143 */ { "Unassigned", opaque, NULL },
/* 144 */ { "Unassigned", opaque, NULL },
/* 145 */ { "Unassigned", opaque, NULL },
/* 146 */ { "Unassigned", opaque, NULL },
/* 142 */ { "IPv4 Address ANDSF", ipv4_list, &hf_bootp_option_andsf_server },
/* 143 */ { "Zerotouch Redirect [TODO: draft-ietf-netconf-zerotouch]", opaque, NULL },
/* 144 */ { "Geospatial Location [TODO:RFC6225]", opaque, NULL },
/* 145 */ { "Forcerenew Nonce Capable", special, NULL },
/* 146 */ { "RDNSS Selection", special, NULL },
/* 147 */ { "Unassigned", opaque, NULL },
/* 148 */ { "Unassigned", opaque, NULL },
/* 149 */ { "Unassigned", opaque, NULL },
/* 150 */ { "TFTP Server Address", ipv4_list, &hf_bootp_option_tftp_server_address },
/* 151 */ { "Unassigned", opaque, NULL },
/* 152 */ { "Unassigned", opaque, NULL },
/* 153 */ { "Unassigned", opaque, NULL },
/* 154 */ { "Unassigned", opaque, NULL },
/* 155 */ { "Unassigned", opaque, NULL },
/* 156 */ { "Unassigned", opaque, NULL },
/* 157 */ { "Unassigned", opaque, NULL },
/* 158 */ { "Unassigned", opaque, NULL },
/* 159 */ { "Unassigned", opaque, NULL },
/* 151 */ { "Leasequery Status code", special, NULL },
/* 152 */ { "Leasequery Base Time", special, NULL },
/* 153 */ { "Leasequery Start Time of State", time_in_u_secs, &hf_bootp_option_bulk_lease_start_time_of_state },
/* 154 */ { "Leasequery Query Start Time", special, NULL },
/* 155 */ { "Leasequery Query End Time", special, NULL },
/* 156 */ { "Leasequery Dhcp State", val_u_byte, &hf_bootp_option_bulk_lease_dhcp_state },
/* 157 */ { "Leasequery Data Source", val_boolean, &hf_bootp_option_bulk_lease_data_source },
/* 158 */ { "PCP Server", special, NULL },
/* 159 */ { "Portparams", special, NULL },
/* 160 */ { "DHCP Captive-Portal", special, NULL },
/* 161 */ { "Manufacturer Usage Description", string, &hf_bootp_option_mudurl},
/* 162 */ { "Unassigned", opaque, NULL },
@ -2859,6 +2925,44 @@ dissect_bootpopt_vi_vendor_class(tvbuff_t *tvb, packet_info *pinfo, proto_tree *
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_forcerenew_nonce(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = 0;
while ( tvb_reported_length_remaining(tvb, offset) > 0) {
proto_tree_add_item(tree, hf_bootp_option_forcerenew_nonce_algo, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_rdnss(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
int offset = 0;
const guchar *dns_name;
guint dns_name_len;
if (tvb_reported_length(tvb) < 10) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must be >= 10");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_rdnss_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_bootp_option_rdnss_pref, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_bootp_option_rdnss_prim_dns_server, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_bootp_option_rdnss_sec_dns_server, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
get_dns_name(tvb, offset, tvb_reported_length_remaining(tvb,offset), offset, &dns_name, &dns_name_len);
proto_tree_add_string(tree, hf_bootp_option_rdnss_domain, tvb, offset,
tvb_reported_length_remaining(tvb,offset), format_text(wmem_packet_scope(), dns_name, dns_name_len));
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_dhcp_captive_portal(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
@ -2869,6 +2973,102 @@ dissect_bootpopt_dhcp_captive_portal(tvbuff_t *tvb, packet_info *pinfo _U_, prot
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_bulk_lease_query_start(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
if (tvb_reported_length(tvb) != 4) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must be 4");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_bulk_lease_query_start, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_bulk_lease_query_end(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
if (tvb_reported_length(tvb) != 4) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must be 4");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_bulk_lease_query_end, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_bulk_lease_base_time(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
if (tvb_reported_length(tvb) != 4) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must be 4");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_bulk_lease_base_time, tvb, 0, 4, ENC_TIME_SECS_NTP|ENC_BIG_ENDIAN);
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_bulk_lease_status_code(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
if (tvb_reported_length(tvb) < 1) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must >= 1");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_bulk_lease_status_code, tvb, 0, 1, ENC_BIG_ENDIAN);
if ( tvb_reported_length_remaining(tvb, 1) > 0) {
proto_tree_add_item(tree, hf_bootp_option_bulk_lease_status_message, tvb, 1, tvb_reported_length_remaining(tvb, 1), ENC_UTF_8|ENC_NA);
}
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_pcp_server(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
proto_tree *tree_pcp;
int offset = 0;
guint8 list_length;
guint8 ip_list_length;
proto_item *ti_pcp;
if (tvb_reported_length(tvb) < 5) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must >= 5");
return 1;
}
while (tvb_reported_length_remaining(tvb, offset) >= 5) {
ip_list_length = 0;
list_length = tvb_get_guint8(tvb, offset);
tree_pcp = proto_tree_add_subtree(tree, tvb, offset, list_length, ett_bootp_option158_pcp_list,
&ti_pcp, "PCP server list");
proto_tree_add_item(tree_pcp, hf_bootp_option_pcp_list_length, tvb, offset, 1, ENC_NA);
offset += 1;
ip_list_length += 1;
while (((list_length - 1)%4 == 0) && (ip_list_length < list_length) && tvb_reported_length_remaining(tvb,offset) >= 4) {
proto_tree_add_item(tree_pcp, hf_bootp_option_pcp_server, tvb, offset, 4, ENC_NA);
offset += 4;
ip_list_length += 4;
}
}
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_portparams(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
if (tvb_reported_length(tvb) != 4) {
expert_add_info_format(pinfo, tree, &ei_bootp_bad_length, "length must be 4");
return 1;
}
proto_tree_add_item(tree, hf_bootp_option_portparams_offset, tvb, 0, 1, ENC_NA);
proto_tree_add_item(tree, hf_bootp_option_portparams_psid_length, tvb, 1, 1, ENC_NA);
proto_tree_add_item(tree, hf_bootp_option_portparams_psid, tvb, 2, 2, ENC_NA);
return tvb_captured_length(tvb);
}
static int
dissect_bootpopt_6RD_option(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
@ -8600,11 +8800,111 @@ proto_register_bootp(void)
FT_IPv4, BASE_NONE, NULL, 0x00,
"Option 138: CAPWAP Access Controllers", HFILL }},
{ &hf_bootp_option_andsf_server,
{ "ANDSF Server", "bootp.option.andsf_server",
FT_IPv4, BASE_NONE, NULL, 0x00,
"ANDSF (Access Network Discovery and Selection Function) Server", HFILL }},
{ &hf_bootp_option_forcerenew_nonce_algo,
{ "Algorithm", "bootp.option.forcerenew_nonce.algorithm",
FT_UINT8, BASE_DEC, VALS(forcerenew_nonce_algo_vals), 0x00,
"Forcenew Nonce Algorithm", HFILL }},
{ &hf_bootp_option_rdnss_reserved,
{ "Reserved", "bootp.option.rdnss.reserved",
FT_UINT8, BASE_HEX, NULL, 0xfc,
"RDNSS Reserved", HFILL }},
{ &hf_bootp_option_rdnss_pref,
{ "Preference", "bootp.option.rdnss.preference",
FT_UINT8, BASE_DEC, VALS(rdnss_pref_vals), 0x03,
"RDNSS (Recursive DNS Server) Preference", HFILL }},
{ &hf_bootp_option_rdnss_prim_dns_server,
{ "Primary DNS", "bootp.option.rdnss.primary_dns",
FT_IPv4, BASE_NONE, NULL, 0x00,
"RDNSS Primary DNS-recursive-name-server's IPv4 address", HFILL }},
{ &hf_bootp_option_rdnss_sec_dns_server,
{ "Secondary DNS", "bootp.option.rdnss.secondary_dns",
FT_IPv4, BASE_NONE, NULL, 0x00,
"RDNSS Secondary DNS-recursive-name-server's IPv4 address", HFILL }},
{ &hf_bootp_option_rdnss_domain,
{ "Domains and networks", "bootp.option.rdnss.domain",
FT_STRING, BASE_NONE, NULL, 0x00,
"RDNSS Domains and networks", HFILL }},
{ &hf_bootp_option_tftp_server_address,
{ "TFTP Server Address", "bootp.option.tftp_server_address",
FT_IPv4, BASE_NONE, NULL, 0x00,
"Option 150: TFTP Server Address", HFILL }},
{ &hf_bootp_option_bulk_lease_status_code,
{ "Status Code", "bootp.option.bulk_lease.status_code",
FT_UINT8, BASE_DEC, VALS(bulk_lease_dhcp_status_code_vals), 0x00,
"DHCPv4 Bulk Leasequery Status Code", HFILL }},
{ &hf_bootp_option_bulk_lease_status_message,
{ "Status Code Message", "bootp.option.bulk_lease.status_code_message",
FT_STRING, BASE_NONE, NULL, 0x00,
"DHCPv4 Bulk Leasequery Status Code Message", HFILL }},
{ &hf_bootp_option_bulk_lease_base_time,
{ "Base Time", "bootp.option.bulk_lease.base_time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
"DHCPv4 Bulk Leasequery Base Time", HFILL }},
{ &hf_bootp_option_bulk_lease_start_time_of_state,
{ "Start Time Of State", "bootp.option.bulk_lease.start_time_of_state",
FT_UINT32, BASE_DEC, NULL, 0x00,
"DHCPv4 Bulk Leasequery Start Time Of State", HFILL }},
{ &hf_bootp_option_bulk_lease_query_start,
{ "Query Start Time", "bootp.option.bulk_lease.query_start_time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
"DHCPv4 Bulk Leasequery Query Start Time", HFILL }},
{ &hf_bootp_option_bulk_lease_query_end,
{ "Query End Time", "bootp.option.bulk_lease.query_end_time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
"DHCPv4 Bulk Leasequery Query End Time", HFILL }},
{ &hf_bootp_option_bulk_lease_dhcp_state,
{ "Dhcp State", "bootp.option.bulk_lease.dhcp_state",
FT_UINT8, BASE_DEC, VALS(bulk_lease_dhcp_state_vals), 0x00,
"DHCPv4 Bulk Leasequery Dhcp State", HFILL }},
{ &hf_bootp_option_bulk_lease_data_source,
{ "Data Source", "bootp.option.bulk_lease.data_source",
FT_BOOLEAN, BASE_NONE, TFS(&tfs_bulk_lease_data_source), 0x00,
"DHCPv4 Bulk Leasequery Data Source", HFILL }},
{ &hf_bootp_option_pcp_list_length,
{ "List-Length", "bootp.option.pcp.list_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Port Control Protocol (PCP) List Length", HFILL }},
{ &hf_bootp_option_pcp_server,
{ "PCP Server", "bootp.option.pcp.server",
FT_IPv4, BASE_NONE, NULL, 0x0,
"Port Control Protocol (PCP) Server", HFILL }},
{ &hf_bootp_option_portparams_offset,
{ "Offset", "bootp.option.portparams.offset",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Port Set ID (PSID) offset", HFILL }},
{ &hf_bootp_option_portparams_psid_length,
{ "PSID-Length", "bootp.option.portparams.psid_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Port Set ID (PSID) Length", HFILL }},
{ &hf_bootp_option_portparams_psid,
{ "PSID", "bootp.option.portparams.psid",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Port Set ID (PSID)", HFILL }},
{ &hf_bootp_option_mudurl,
{ "MUDURL", "bootp.option.mudurl",
FT_STRING, BASE_NONE, NULL, 0x0,
@ -8850,6 +9150,7 @@ proto_register_bootp(void)
&ett_bootp_o43_bsdp_image_desc_list,
&ett_bootp_o43_bsdp_image_desc,
&ett_bootp_o43_bsdp_attributes_flags,
&ett_bootp_option158_pcp_list,
};
static ei_register_info ei[] = {
@ -9019,6 +9320,14 @@ proto_reg_handoff_bootp(void)
dissector_add_uint("bootp.option", 123, create_dissector_handle( dissect_bootpopt_coordinate_based_location, -1 ));
dissector_add_uint("bootp.option", 124, create_dissector_handle( dissect_bootpopt_vi_vendor_class, -1 ));
dissector_add_uint("bootp.option", 125, create_dissector_handle( dissect_bootpopt_vi_vendor_specific_info, -1 ));
dissector_add_uint("bootp.option", 145, create_dissector_handle( dissect_bootpopt_forcerenew_nonce, -1 ));
dissector_add_uint("bootp.option", 146, create_dissector_handle( dissect_bootpopt_rdnss, -1 ));
dissector_add_uint("bootp.option", 151, create_dissector_handle( dissect_bootpopt_bulk_lease_status_code, -1 ));
dissector_add_uint("bootp.option", 152, create_dissector_handle( dissect_bootpopt_bulk_lease_base_time, -1 ));
dissector_add_uint("bootp.option", 154, create_dissector_handle( dissect_bootpopt_bulk_lease_query_start, -1 ));
dissector_add_uint("bootp.option", 155, create_dissector_handle( dissect_bootpopt_bulk_lease_query_end, -1 ));
dissector_add_uint("bootp.option", 158, create_dissector_handle( dissect_bootpopt_pcp_server, -1 ));
dissector_add_uint("bootp.option", 159, create_dissector_handle( dissect_bootpopt_portparams, -1 ));
dissector_add_uint("bootp.option", 160, create_dissector_handle( dissect_bootpopt_dhcp_captive_portal, -1 ));
dissector_add_uint("bootp.option", 212, create_dissector_handle( dissect_bootpopt_6RD_option, -1 ));
dissector_add_uint("bootp.option", 242, create_dissector_handle( dissect_bootpopt_avaya_ip_telephone, -1 ));