epan/dissectors/packet-wifi-p2p.c

   1 /* packet-wifi-p2p.c
   2  *
   3  * Wi-Fi P2P
   4  *
   5  * Copyright 2009-2010 Atheros Communications
   6  *
   7  * $Id$
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <glib.h>
  29 #include <epan/packet.h>
  30 #include <epan/expert.h>
  31
  32 #include "packet-wifi-p2p.h"
  33
  34 enum {
  35   P2P_ATTR_STATUS = 0,
  36   P2P_ATTR_MINOR_REASON_CODE = 1,
  37   P2P_ATTR_P2P_CAPABILITY = 2,
  38   P2P_ATTR_P2P_DEVICE_ID = 3,
  39   P2P_ATTR_GROUP_OWNER_INTENT = 4,
  40   P2P_ATTR_CONFIGURATION_TIMEOUT = 5,
  41   P2P_ATTR_LISTEN_CHANNEL = 6,
  42   P2P_ATTR_P2P_GROUP_BSSID = 7,
  43   P2P_ATTR_EXTENDED_LISTEN_TIMING = 8,
  44   P2P_ATTR_INTENDED_P2P_INTERFACE_ADDRESS = 9,
  45   P2P_ATTR_P2P_MANAGEABILITY = 10,
  46   P2P_ATTR_CHANNEL_LIST = 11,
  47   P2P_ATTR_NOTICE_OF_ABSENCE = 12,
  48   P2P_ATTR_P2P_DEVICE_INFO = 13,
  49   P2P_ATTR_P2P_GROUP_INFO = 14,
  50   P2P_ATTR_P2P_GROUP_ID = 15,
  51   P2P_ATTR_P2P_INTERFACE = 16,
  52   P2P_ATTR_OPERATING_CHANNEL = 17,
  53   P2P_ATTR_INVITATION_FLAGS = 18,
  54   /* 19-220 Reserved */
  55   P2P_ATTR_VENDOR_SPECIFIC = 221,
  56   /* 222-255 Reserved */
  57 };
  58
  59 static const value_string p2p_attr_types[] = {
  60   { P2P_ATTR_STATUS, "Status" },
  61   { P2P_ATTR_MINOR_REASON_CODE, "Minor Reason Code" },
  62   { P2P_ATTR_P2P_CAPABILITY, "P2P Capability" },
  63   { P2P_ATTR_P2P_DEVICE_ID, "P2P Device ID" },
  64   { P2P_ATTR_GROUP_OWNER_INTENT, "Group Owner Intent" },
  65   { P2P_ATTR_CONFIGURATION_TIMEOUT, "Configuration Timeout" },
  66   { P2P_ATTR_LISTEN_CHANNEL, "Listen Channel" },
  67   { P2P_ATTR_P2P_GROUP_BSSID, "P2P Group BSSID" },
  68   { P2P_ATTR_EXTENDED_LISTEN_TIMING, "Extended Listen Timing" },
  69   { P2P_ATTR_INTENDED_P2P_INTERFACE_ADDRESS,
  70     "Intended P2P Interface Address" },
  71   { P2P_ATTR_P2P_MANAGEABILITY, "P2P Manageability" },
  72   { P2P_ATTR_CHANNEL_LIST, "Channel List" },
  73   { P2P_ATTR_NOTICE_OF_ABSENCE, "Notice of Absence" },
  74   { P2P_ATTR_P2P_DEVICE_INFO, "P2P Device Info" },
  75   { P2P_ATTR_P2P_GROUP_INFO, "P2P Group Info" },
  76   { P2P_ATTR_P2P_GROUP_ID, "P2P Group ID" },
  77   { P2P_ATTR_P2P_INTERFACE, "P2P Interface" },
  78   { P2P_ATTR_OPERATING_CHANNEL, "Operating Channel" },
  79   { P2P_ATTR_INVITATION_FLAGS, "Invitation Flags" },
  80   { P2P_ATTR_VENDOR_SPECIFIC, "Vendor specific attribute" },
  81   { 0, NULL }
  82 };
  83
  84 #define P2P_DEV_CAPAB_SERVICE_DISCOVERY 0x01
  85 #define P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY 0x02
  86 #define P2P_DEV_CAPAB_CONCURRENT_OPERATION 0x04
  87 #define P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED 0x08
  88 #define P2P_DEV_CAPAB_P2P_DEVICE_LIMIT 0x10
  89 #define P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE 0x20
  90
  91 #define P2P_GROUP_CAPAB_P2P_GROUP_OWNER 0x01
  92 #define P2P_GROUP_CAPAB_PERSISTENT_P2P_GROUP 0x02
  93 #define P2P_GROUP_CAPAB_P2P_GROUP_LIMIT 0x04
  94 #define P2P_GROUP_CAPAB_INTRA_BSS_DISTRIBUTION 0x08
  95 #define P2P_GROUP_CAPAB_CROSS_CONNECTION 0x10
  96 #define P2P_GROUP_CAPAB_PERSISTENT_RECONNECT 0x20
  97 #define P2P_GROUP_CAPAB_GROUP_FORMATION 0x40
  98
  99 #define WPS_CONF_METH_USBA 0x0001
 100 #define WPS_CONF_METH_ETHERNET 0x0002
 101 #define WPS_CONF_METH_LABEL 0x0004
 102 #define WPS_CONF_METH_DISPLAY 0x0008
 103 #define WPS_CONF_METH_EXT_NFC_TOKEN 0x0010
 104 #define WPS_CONF_METH_INT_NFC_TOKEN 0x0020
 105 #define WPS_CONF_METH_NFC_INTERFACE 0x0040
 106 #define WPS_CONF_METH_PUSHBUTTON 0x0080
 107 #define WPS_CONF_METH_KEYPAD 0x0100
 108
 109 enum {
 110   P2P_ACT_GO_NEG_REQ = 0,
 111   P2P_ACT_GO_NEG_RESP = 1,
 112   P2P_ACT_GO_NEG_CONF = 2,
 113   P2P_ACT_INVITATION_REQ = 3,
 114   P2P_ACT_INVITATION_RESP = 4,
 115   P2P_ACT_DEV_DISC_REQ = 5,
 116   P2P_ACT_DEV_DISC_RESP = 6,
 117   P2P_ACT_PROV_DISC_REQ = 7,
 118   P2P_ACT_PROV_DISC_RESP = 8,
 119 };
 120
 121 static const value_string p2p_public_action_subtypes[] = {
 122   { P2P_ACT_GO_NEG_REQ, "GO Negotiation Request" },
 123   { P2P_ACT_GO_NEG_RESP, "GO Negotiation Response" },
 124   { P2P_ACT_GO_NEG_CONF, "GO Negotiation Confirmation" },
 125   { P2P_ACT_INVITATION_REQ, "P2P Invitation Request" },
 126   { P2P_ACT_INVITATION_RESP, "P2P Invitation Response" },
 127   { P2P_ACT_DEV_DISC_REQ, "Device Discoverability Request" },
 128   { P2P_ACT_DEV_DISC_RESP, "Device Discoverability Response" },
 129   { P2P_ACT_PROV_DISC_REQ, "Provision Discovery Request" },
 130   { P2P_ACT_PROV_DISC_RESP, "Provision Discovery Response" },
 131   { 0, NULL }
 132 };
 133
 134 enum {
 135   P2P_ACT_NOA = 0,
 136   P2P_ACT_P2P_PRESENCE_REQ = 1,
 137   P2P_ACT_P2P_PRESENCE_RESP = 2,
 138   P2P_ACT_GO_DISC_REQ = 3,
 139 };
 140
 141 static const value_string p2p_action_subtypes[] = {
 142   { P2P_ACT_NOA, "Notice of Absence" },
 143   { P2P_ACT_P2P_PRESENCE_REQ, "P2P Presence Request" },
 144   { P2P_ACT_P2P_PRESENCE_RESP, "P2P Presence Response" },
 145   { P2P_ACT_GO_DISC_REQ, "GO Discoverability Request" },
 146   { 0, NULL }
 147 };
 148
 149 enum {
 150   P2P_STATUS_SUCCESS = 0,
 151   P2P_FAIL_INFORMATION_CURRENTLY_UNAVAILABLE = 1,
 152   P2P_FAIL_INCOMPATIBLE_PARAMETERS = 2,
 153   P2P_FAIL_LIMIT_REACHED = 3,
 154   P2P_FAIL_INVALID_PARAMETERS = 4,
 155   P2P_FAIL_UNABLE_TO_ACCOMMODATE = 5,
 156   P2P_FAIL_PREVIOUS_PROTOCOL_ERROR = 6,
 157   P2P_FAIL_NO_COMMON_CHANNELS = 7,
 158   P2P_FAIL_UNKNOWN_P2P_GROUP = 8,
 159   P2P_FAIL_BOTH_DEVICES_GO = 9,
 160   P2P_FAIL_INCOMPATIBLE_PROVISION_METHOD = 10,
 161   P2P_FAIL_REJECTED_BY_USER = 11,
 162 };
 163
 164 static const value_string p2p_status_codes[] = {
 165   { P2P_STATUS_SUCCESS, "Success" },
 166   { P2P_FAIL_INFORMATION_CURRENTLY_UNAVAILABLE, "Fail; information is "
 167     "currently unavailable" },
 168   { P2P_FAIL_INCOMPATIBLE_PARAMETERS, "Fail; incompatible parameters" },
 169   { P2P_FAIL_LIMIT_REACHED, "Fail; limit reached" },
 170   { P2P_FAIL_INVALID_PARAMETERS, "Fail; invalid parameters" },
 171   { P2P_FAIL_UNABLE_TO_ACCOMMODATE, "Fail; unable to accommodate request" },
 172   { P2P_FAIL_PREVIOUS_PROTOCOL_ERROR, "Fail; previous protocol error, or "
 173     "disruptive behavior" },
 174   { P2P_FAIL_NO_COMMON_CHANNELS, "Fail; no common channels" },
 175   { P2P_FAIL_UNKNOWN_P2P_GROUP, "Fail; unknown P2P Group" },
 176   { P2P_FAIL_BOTH_DEVICES_GO, "Fail; both P2P Devices indicated an Intent of "
 177     "15 in Group Owner Negotiation" },
 178   { P2P_FAIL_INCOMPATIBLE_PROVISION_METHOD, "Fail; incompatible provisioning "
 179     "method" },
 180   { P2P_FAIL_REJECTED_BY_USER, "Fail; rejected by user" },
 181   { 0, NULL }
 182 };
 183
 184 enum {
 185   P2P_MINOR_RESERVED = 0,
 186   P2P_MINOR_DISCONNECT_DUE_TO_CROSS_CONNECTION = 1,
 187   P2P_MINOR_DISCONNECT_DUE_TO_NOT_P2P_MANAGED = 2,
 188   P2P_MINOR_DISCONNECT_DUE_TO_NO_COEXISTENCE = 3,
 189   P2P_MINOR_DISCONNECT_DUE_TO_OUTSIDE_POLICY = 4,
 190 };
 191
 192 static const value_string p2p_minor_reason_codes[] = {
 193   { P2P_MINOR_RESERVED, "Reserved" },
 194   { P2P_MINOR_DISCONNECT_DUE_TO_CROSS_CONNECTION,
 195     "Disconnected because Cross Connection capability is not allow" },
 196   { P2P_MINOR_DISCONNECT_DUE_TO_NOT_P2P_MANAGED,
 197     "Disconnected because P2P Infrastructure Managed not supported" },
 198   { P2P_MINOR_DISCONNECT_DUE_TO_NO_COEXISTENCE,
 199     "Disconnected because concurrent device is not setting coexistence "
 200     "parameters" },
 201   { P2P_MINOR_DISCONNECT_DUE_TO_OUTSIDE_POLICY,
 202     "Disconnected because P2P operation is outside the IT defined policy" },
 203   { 0, NULL }
 204 };
 205
 206 static const value_string invitation_types[] = {
 207   { 0, "Join active P2P Group" },
 208   { 1, "Reinvoke Persistent Group" },
 209   { 0, NULL }
 210 };
 211
 212 static const value_string p2p_service_protocol_types[] = {
 213   { 0, "All Service Protocol Types" },
 214   { 1, "Bonjour" },
 215   { 2, "UPnP" },
 216   { 3, "WS-Discovery" },
 217   { 0, NULL }
 218 };
 219
 220 static const value_string p2p_sd_status_codes[] = {
 221   { 0, "Success" },
 222   { 1, "Service Protocol Type not available" },
 223   { 2, "Requested information not available" },
 224   { 3, "Bad Request" },
 225   { 0, NULL }
 226 };
 227
 228 static int proto_p2p = -1;
 229
 230 static gint ett_p2p_tlv = -1;
 231 static gint ett_p2p_service_tlv = -1;
 232
 233 static int hf_p2p_attr_type = -1;
 234 static int hf_p2p_attr_len = -1;
 235
 236 static int hf_p2p_attr_capab = -1;
 237 static int hf_p2p_attr_capab_device = -1;
 238 static int hf_p2p_attr_capab_device_service_discovery = -1;
 239 static int hf_p2p_attr_capab_device_client_discoverability = -1;
 240 static int hf_p2p_attr_capab_device_concurrent_operation = -1;
 241 static int hf_p2p_attr_capab_device_infrastructure_managed = -1;
 242 static int hf_p2p_attr_capab_device_limit = -1;
 243 static int hf_p2p_attr_capab_invitation_procedure = -1;
 244 static int hf_p2p_attr_capab_group = -1;
 245 static int hf_p2p_attr_capab_group_owner = -1;
 246 static int hf_p2p_attr_capab_group_persistent = -1;
 247 static int hf_p2p_attr_capab_group_limit = -1;
 248 static int hf_p2p_attr_capab_group_intra_bss_distribution = -1;
 249 static int hf_p2p_attr_capab_group_cross_connection = -1;
 250 static int hf_p2p_attr_capab_group_persistent_reconnect = -1;
 251 static int hf_p2p_attr_capab_group_group_formation = -1;
 252
 253 static int hf_p2p_attr_device_id = -1;
 254
 255 static int hf_p2p_attr_status = -1;
 256
 257 static int hf_p2p_attr_go_intent = -1;
 258 static int hf_p2p_attr_go_intent_tie_breaker = -1;
 259
 260 static int hf_p2p_attr_listen_channel = -1;
 261 static int hf_p2p_attr_listen_channel_country = -1;
 262 static int hf_p2p_attr_listen_channel_oper_class = -1;
 263 static int hf_p2p_attr_listen_channel_number = -1;
 264
 265 static int hf_p2p_attr_operating_channel = -1;
 266 static int hf_p2p_attr_operating_channel_country = -1;
 267 static int hf_p2p_attr_operating_channel_oper_class = -1;
 268 static int hf_p2p_attr_operating_channel_number = -1;
 269
 270 static int hf_p2p_attr_channel_list = -1;
 271 static int hf_p2p_attr_channel_list_country = -1;
 272 static int hf_p2p_attr_channel_list_oper_class = -1;
 273 static int hf_p2p_attr_channel_list_num_chan = -1;
 274 static int hf_p2p_attr_channel_list_chan = -1;
 275
 276 static int hf_p2p_attr_dev_info = -1;
 277 static int hf_p2p_attr_dev_info_p2p_dev_addr = -1;
 278 static int hf_p2p_attr_dev_info_pri_dev_type = -1;
 279 static int hf_p2p_attr_dev_info_pri_dev_type_category = -1;
 280 static int hf_p2p_attr_dev_info_pri_dev_type_oui = -1;
 281 static int hf_p2p_attr_dev_info_pri_dev_type_subcategory = -1;
 282 static int hf_p2p_attr_dev_info_num_sec = -1;
 283 static int hf_p2p_attr_dev_info_sec_dev_type = -1;
 284 static int hf_p2p_attr_dev_info_dev_name_type = -1;
 285 static int hf_p2p_attr_dev_info_dev_name_len = -1;
 286 static int hf_p2p_attr_dev_info_dev_name = -1;
 287 static int hf_p2p_attr_dev_info_config_methods = -1;
 288 static int hf_p2p_attr_dev_info_config_methods_usba = -1;
 289 static int hf_p2p_attr_dev_info_config_methods_ethernet = -1;
 290 static int hf_p2p_attr_dev_info_config_methods_label = -1;
 291 static int hf_p2p_attr_dev_info_config_methods_display = -1;
 292 static int hf_p2p_attr_dev_info_config_methods_ext_nfc_token = -1;
 293 static int hf_p2p_attr_dev_info_config_methods_int_nfc_token = -1;
 294 static int hf_p2p_attr_dev_info_config_methods_nfc_interface = -1;
 295 static int hf_p2p_attr_dev_info_config_methods_pushbutton = -1;
 296 static int hf_p2p_attr_dev_info_config_methods_keypad = -1;
 297 static int hf_p2p_attr_config_timeout_go = -1;
 298 static int hf_p2p_attr_config_timeout_client = -1;
 299 static int hf_p2p_attr_intended_interface_addr = -1;
 300 static int hf_p2p_attr_extended_listen_timing_period = -1;
 301 static int hf_p2p_attr_extended_listen_timing_interval = -1;
 302 static int hf_p2p_attr_p2p_group_id_dev_addr = -1;
 303 static int hf_p2p_attr_p2p_group_id_ssid = -1;
 304 static int hf_p2p_attr_p2p_group_bssid = -1;
 305
 306 static int hf_p2p_attr_noa_index = -1;
 307 static int hf_p2p_attr_noa_params = -1;
 308 static int hf_p2p_attr_noa_params_opp_ps = -1;
 309 static int hf_p2p_attr_noa_params_ctwindow = -1;
 310 static int hf_p2p_attr_noa_count_type = -1;
 311 static int hf_p2p_attr_noa_duration = -1;
 312 static int hf_p2p_attr_noa_interval = -1;
 313 static int hf_p2p_attr_noa_start_time = -1;
 314
 315 static int hf_p2p_attr_gi = -1;
 316 static int hf_p2p_attr_gi_length = -1;
 317 static int hf_p2p_attr_gi_p2p_dev_addr = -1;
 318 static int hf_p2p_attr_gi_p2p_iface_addr = -1;
 319 static int hf_p2p_attr_gi_dev_capab = -1;
 320 static int hf_p2p_attr_gi_dev_capab_service_discovery = -1;
 321 static int hf_p2p_attr_gi_dev_capab_client_discoverability = -1;
 322 static int hf_p2p_attr_gi_dev_capab_concurrent_operation = -1;
 323 static int hf_p2p_attr_gi_dev_capab_infrastructure_managed = -1;
 324 static int hf_p2p_attr_gi_dev_capab_limit = -1;
 325 static int hf_p2p_attr_gi_dev_capab_invitation_procedure = -1;
 326 static int hf_p2p_attr_gi_config_methods = -1;
 327 static int hf_p2p_attr_gi_config_methods_usba = -1;
 328 static int hf_p2p_attr_gi_config_methods_ethernet = -1;
 329 static int hf_p2p_attr_gi_config_methods_label = -1;
 330 static int hf_p2p_attr_gi_config_methods_display = -1;
 331 static int hf_p2p_attr_gi_config_methods_ext_nfc_token = -1;
 332 static int hf_p2p_attr_gi_config_methods_int_nfc_token = -1;
 333 static int hf_p2p_attr_gi_config_methods_nfc_interface = -1;
 334 static int hf_p2p_attr_gi_config_methods_pushbutton = -1;
 335 static int hf_p2p_attr_gi_config_methods_keypad = -1;
 336 static int hf_p2p_attr_gi_pri_dev_type = -1;
 337 static int hf_p2p_attr_gi_pri_dev_type_category = -1;
 338 static int hf_p2p_attr_gi_pri_dev_type_oui = -1;
 339 static int hf_p2p_attr_gi_pri_dev_type_subcategory = -1;
 340 static int hf_p2p_attr_gi_num_sec_dev_types = -1;
 341 static int hf_p2p_attr_gi_sec_dev_type = -1;
 342 static int hf_p2p_attr_gi_dev_name_type = -1;
 343 static int hf_p2p_attr_gi_dev_name_len = -1;
 344 static int hf_p2p_attr_gi_dev_name = -1;
 345
 346 static int hf_p2p_attr_invitation_flags = -1;
 347 static int hf_p2p_attr_invitation_flags_type = -1;
 348
 349 static int hf_p2p_attr_manageability_bitmap = -1;
 350 static int hf_p2p_attr_manageability_bitmap_mgmt = -1;
 351 static int hf_p2p_attr_manageability_bitmap_cross_connect = -1;
 352 static int hf_p2p_attr_manageability_bitmap_coex_opt = -1;
 353
 354 static int hf_p2p_attr_minor_reason_code = -1;
 355
 356 static int hf_p2p_anqp_service_update_indicator = -1;
 357 static int hf_p2p_anqp_length = -1;
 358 static int hf_p2p_anqp_service_protocol_type = -1;
 359 static int hf_p2p_anqp_service_transaction_id = -1;
 360 static int hf_p2p_anqp_query_data = -1;
 361 static int hf_p2p_anqp_status_code = -1;
 362 static int hf_p2p_anqp_response_data = -1;
 363
 364 static int hf_p2p_action_subtype = -1;
 365 static int hf_p2p_action_dialog_token = -1;
 366 static int hf_p2p_public_action_subtype = -1;
 367 static int hf_p2p_public_action_dialog_token = -1;
 368
 369 static void dissect_wifi_p2p_capability(proto_item *tlv_root,
 370                                         proto_item *tlv_item,
 371                                         tvbuff_t *tvb, int offset)
 372 {
 373   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_device, tvb,
 374                       offset + 3, 1, FALSE);
 375   proto_tree_add_item(tlv_root,
 376                       hf_p2p_attr_capab_device_service_discovery, tvb,
 377                       offset + 3, 1, FALSE);
 378   proto_tree_add_item(tlv_root,
 379                       hf_p2p_attr_capab_device_client_discoverability,
 380                       tvb, offset + 3, 1, FALSE);
 381   proto_tree_add_item(tlv_root,
 382                       hf_p2p_attr_capab_device_concurrent_operation,
 383                       tvb, offset + 3, 1, FALSE);
 384   proto_tree_add_item(tlv_root,
 385                       hf_p2p_attr_capab_device_infrastructure_managed,
 386                       tvb, offset + 3, 1, FALSE);
 387   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_device_limit, tvb,
 388                       offset + 3, 1, FALSE);
 389   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_invitation_procedure, tvb,
 390                       offset + 3, 1, FALSE);
 391
 392   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group,
 393                       tvb, offset + 4, 1, FALSE);
 394   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_owner,
 395                       tvb, offset + 4, 1, FALSE);
 396   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_persistent,
 397                       tvb, offset + 4, 1, FALSE);
 398   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_limit,
 399                       tvb, offset + 4, 1, FALSE);
 400   proto_tree_add_item(tlv_root,
 401                       hf_p2p_attr_capab_group_intra_bss_distribution,
 402                       tvb, offset + 4, 1, FALSE);
 403   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_cross_connection,
 404                       tvb, offset + 4, 1, FALSE);
 405   proto_tree_add_item(tlv_root,
 406                       hf_p2p_attr_capab_group_persistent_reconnect,
 407                       tvb, offset + 4, 1, FALSE);
 408   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_group_formation,
 409                       tvb, offset + 4, 1, FALSE);
 410
 411   proto_item_append_text(tlv_item, ": Device 0x%x  Group 0x%x",
 412                          tvb_get_guint8(tvb, offset + 3),
 413                          tvb_get_guint8(tvb, offset + 4));
 414 }
 415
 416 static void dissect_device_id(proto_item *tlv_root, proto_item *tlv_item,
 417                               tvbuff_t *tvb, int offset)
 418 {
 419   guint8 addr[6];
 420   proto_tree_add_item(tlv_root, hf_p2p_attr_device_id, tvb,
 421                       offset + 3, 6, FALSE);
 422   tvb_memcpy(tvb, addr, offset + 3, 6);
 423   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 424 }
 425
 426 static void dissect_group_owner_intent(proto_item *tlv_root,
 427                                        proto_item *tlv_item,
 428                                        tvbuff_t *tvb, int offset)
 429 {
 430   proto_tree_add_item(tlv_root, hf_p2p_attr_go_intent, tvb,
 431                       offset + 3, 1, FALSE);
 432   proto_tree_add_item(tlv_root, hf_p2p_attr_go_intent_tie_breaker, tvb,
 433                       offset + 3, 1, FALSE);
 434   proto_item_append_text(tlv_item, ": Intent %u  Tie breaker %u",
 435                          tvb_get_guint8(tvb, offset + 3) >> 1,
 436                          tvb_get_guint8(tvb, offset + 3) & 0x01);
 437 }
 438
 439 static void dissect_status(proto_item *tlv_root, proto_item *tlv_item,
 440                            tvbuff_t *tvb, int offset)
 441 {
 442   proto_tree_add_item(tlv_root, hf_p2p_attr_status, tvb,
 443                       offset + 3, 1, FALSE);
 444   proto_item_append_text(tlv_item, ": %u (%s)",
 445                          tvb_get_guint8(tvb, offset + 3),
 446                          val_to_str(tvb_get_guint8(tvb, offset + 3),
 447                                     p2p_status_codes,
 448                                     "Unknown Status Code (%u)"));
 449 }
 450
 451 static void dissect_listen_channel(proto_item *tlv_root, proto_item *tlv_item,
 452                                    tvbuff_t *tvb, int offset)
 453 {
 454   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_country, tvb,
 455                       offset + 3, 3, FALSE);
 456   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_oper_class, tvb,
 457                       offset + 6, 1, FALSE);
 458   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_number, tvb,
 459                       offset + 7, 1, FALSE);
 460   proto_item_append_text(tlv_item, ": Operating Class %u  "
 461                          "Channel Number %u",
 462                          tvb_get_guint8(tvb, offset + 6),
 463                          tvb_get_guint8(tvb, offset + 7));
 464 }
 465
 466 static void dissect_operating_channel(proto_item *tlv_root,
 467                                       proto_item *tlv_item,
 468                                       tvbuff_t *tvb, int offset)
 469 {
 470   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_country, tvb,
 471                       offset + 3, 3, FALSE);
 472   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_oper_class, tvb,
 473                       offset + 6, 1, FALSE);
 474   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_number, tvb,
 475                       offset + 7, 1, FALSE);
 476   proto_item_append_text(tlv_item, ": Operating Class %u  "
 477                          "Channel Number %u",
 478                          tvb_get_guint8(tvb, offset + 6),
 479                          tvb_get_guint8(tvb, offset + 7));
 480 }
 481
 482 static void dissect_channel_list(proto_item *tlv_root, tvbuff_t *tvb,
 483                                  int offset, guint16 slen)
 484 {
 485   int s_offset = offset + 3;
 486   guint8 num_chan;
 487
 488   proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_country, tvb,
 489                       s_offset, 3, FALSE);
 490   s_offset += 3;
 491
 492   while (offset + 3 + slen > s_offset) {
 493     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_oper_class, tvb,
 494                         s_offset, 1, FALSE);
 495     s_offset++;
 496
 497     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_num_chan, tvb,
 498                         s_offset, 1, FALSE);
 499     num_chan = tvb_get_guint8(tvb, s_offset);
 500     s_offset++;
 501
 502     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_chan, tvb,
 503                         s_offset, num_chan, FALSE);
 504     s_offset += num_chan;
 505   }
 506 }
 507
 508 static void dissect_wifi_p2p_device_info(packet_info *pinfo,
 509                                          proto_item *tlv_root, tvbuff_t *tvb,
 510                                          int offset, guint16 slen)
 511 {
 512   int s_offset, nlen;
 513   guint8 num_sec;
 514   guint16 attr_type, attr_len;
 515   proto_item *item;
 516
 517   s_offset = offset + 3;
 518
 519   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_p2p_dev_addr, tvb,
 520                       s_offset, 6, FALSE);
 521   s_offset += 6;
 522
 523   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_config_methods,
 524                       tvb, s_offset, 2, FALSE);
 525   proto_tree_add_item(tlv_root,
 526                       hf_p2p_attr_dev_info_config_methods_usba,
 527                       tvb, s_offset, 2, FALSE);
 528   proto_tree_add_item(tlv_root,
 529                       hf_p2p_attr_dev_info_config_methods_ethernet,
 530                       tvb, s_offset, 2, FALSE);
 531   proto_tree_add_item(tlv_root,
 532                       hf_p2p_attr_dev_info_config_methods_label,
 533                       tvb, s_offset, 2, FALSE);
 534   proto_tree_add_item(tlv_root,
 535                       hf_p2p_attr_dev_info_config_methods_display,
 536                       tvb, s_offset, 2, FALSE);
 537   proto_tree_add_item(tlv_root,
 538                       hf_p2p_attr_dev_info_config_methods_ext_nfc_token,
 539                       tvb, s_offset, 2, FALSE);
 540   proto_tree_add_item(tlv_root,
 541                       hf_p2p_attr_dev_info_config_methods_int_nfc_token,
 542                       tvb, s_offset, 2, FALSE);
 543   proto_tree_add_item(tlv_root,
 544                       hf_p2p_attr_dev_info_config_methods_nfc_interface,
 545                       tvb, s_offset, 2, FALSE);
 546   proto_tree_add_item(tlv_root,
 547                       hf_p2p_attr_dev_info_config_methods_pushbutton,
 548                       tvb, s_offset, 2, FALSE);
 549   proto_tree_add_item(tlv_root,
 550                       hf_p2p_attr_dev_info_config_methods_keypad,
 551                       tvb, s_offset, 2, FALSE);
 552
 553   s_offset += 2;
 554
 555   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type, tvb,
 556                       s_offset, 8, FALSE);
 557   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_category,
 558                       tvb, s_offset, 2, FALSE);
 559   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_oui,
 560                       tvb, s_offset + 2, 4, FALSE);
 561   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_subcategory,
 562                       tvb, s_offset + 6, 2, FALSE);
 563   s_offset += 8;
 564
 565   num_sec = tvb_get_guint8(tvb, s_offset);
 566   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_num_sec, tvb,
 567                       s_offset, 1, FALSE);
 568   s_offset++;
 569
 570   while (num_sec > 0) {
 571     proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_sec_dev_type,
 572                         tvb, s_offset, 8, FALSE);
 573     s_offset += 8;
 574     num_sec--;
 575   }
 576
 577   item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name_type,
 578                              tvb, s_offset, 2, FALSE);
 579   attr_type = tvb_get_ntohs(tvb, s_offset);
 580   if (attr_type != 0x1011) {
 581     expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 582                            "Incorrect Device Name attribute type");
 583   }
 584   s_offset += 2;
 585   item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name_len,
 586                              tvb, s_offset, 2, FALSE);
 587   attr_len = tvb_get_ntohs(tvb, s_offset);
 588   s_offset += 2;
 589   if (attr_len > offset + 3 + slen - s_offset) {
 590     expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 591                            "Invalid Device Name attribute length");
 592     return;
 593   }
 594   nlen = offset + 3 + slen - s_offset;
 595   if (nlen > 0)
 596     item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name,
 597                                tvb, s_offset,
 598                                nlen > attr_len ? attr_len : nlen,
 599                                FALSE);
 600   if (nlen != attr_len) {
 601     expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 602                            "Invalid Device Name attribute");
 603   }
 604 }
 605
 606 static void dissect_configuration_timeout(proto_item *tlv_root,
 607                                           proto_item *tlv_item,
 608                                           tvbuff_t *tvb, int offset)
 609 {
 610   proto_tree_add_item(tlv_root, hf_p2p_attr_config_timeout_go, tvb,
 611                       offset + 3, 1, FALSE);
 612   proto_tree_add_item(tlv_root, hf_p2p_attr_config_timeout_client, tvb,
 613                       offset + 4, 1, FALSE);
 614   proto_item_append_text(tlv_item, ": GO %u msec, client %u msec",
 615                          tvb_get_guint8(tvb, offset + 3) * 10,
 616                          tvb_get_guint8(tvb, offset + 4) * 10);
 617 }
 618
 619 static void dissect_intended_interface_addr(proto_item *tlv_root,
 620                                             proto_item *tlv_item,
 621                                             tvbuff_t *tvb, int offset)
 622 {
 623   guint8 addr[6];
 624   proto_tree_add_item(tlv_root, hf_p2p_attr_intended_interface_addr, tvb,
 625                       offset + 3, 6, FALSE);
 626   tvb_memcpy(tvb, addr, offset + 3, 6);
 627   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 628 }
 629
 630 static void dissect_extended_listen_timing(proto_item *tlv_root,
 631                                            proto_item *tlv_item,
 632                                            tvbuff_t *tvb, int offset)
 633 {
 634   guint16 period, interval;
 635   period = tvb_get_letohs(tvb, offset + 3);
 636   interval = tvb_get_letohs(tvb, offset + 5);
 637   proto_tree_add_uint(tlv_root, hf_p2p_attr_extended_listen_timing_period, tvb,
 638                       offset + 3, 2, period);
 639   proto_tree_add_uint(tlv_root, hf_p2p_attr_extended_listen_timing_interval,
 640                       tvb, offset + 5, 2, interval);
 641   proto_item_append_text(tlv_item, ": Availability Period %u msec, "
 642                          "Availability Interval %u msec", period, interval);
 643 }
 644
 645 static void dissect_wifi_p2p_group_id(proto_item *tlv_root,
 646                                       proto_item *tlv_item, tvbuff_t *tvb,
 647                                       int offset, guint16 slen)
 648 {
 649   int s_offset;
 650   guint8 addr[6];
 651
 652   s_offset = offset + 3;
 653   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_id_dev_addr, tvb,
 654                       s_offset, 6, FALSE);
 655   tvb_memcpy(tvb, addr, offset + 3, 6);
 656   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 657   s_offset += 6;
 658   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_id_ssid, tvb,
 659                       s_offset, offset + 3 + slen - s_offset, FALSE);
 660 }
 661
 662 static void dissect_wifi_p2p_group_bssid(packet_info *pinfo,
 663                                          proto_item *tlv_root,
 664                                          proto_item *tlv_item, tvbuff_t *tvb,
 665                                          int offset, guint16 slen)
 666 {
 667   int s_offset;
 668   guint8 addr[6];
 669
 670   if (slen != 6) {
 671     expert_add_info_format(pinfo, tlv_item, PI_MALFORMED, PI_ERROR,
 672                            "Invalid ethernet address");
 673     return;
 674   }
 675
 676   s_offset = offset + 3;
 677   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_bssid, tvb,
 678                       s_offset, 6, FALSE);
 679   tvb_memcpy(tvb, addr, offset + 3, 6);
 680   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 681 }
 682
 683 static void dissect_notice_of_absence(packet_info *pinfo, proto_item *tlv_root,
 684                                       proto_item *tlv_item,
 685                                       tvbuff_t *tvb, int offset, guint16 slen)
 686 {
 687   int s_offset = offset + 3;
 688
 689   if (slen < 2) {
 690     expert_add_info_format(pinfo, tlv_item, PI_MALFORMED, PI_ERROR,
 691                            "Too short NoA");
 692     return;
 693   }
 694
 695   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_index, tvb, s_offset, 1,
 696                       FALSE);
 697   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params, tvb, s_offset + 1, 1,
 698                       FALSE);
 699   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params_opp_ps, tvb,
 700                       s_offset + 1, 1, FALSE);
 701   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params_ctwindow, tvb,
 702                       s_offset + 1, 1, FALSE);
 703
 704   s_offset += 2;
 705   while (offset + 3 + slen >= s_offset + 13) {
 706     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_count_type, tvb, s_offset, 1,
 707                         FALSE);
 708     s_offset++;
 709     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_duration, tvb, s_offset, 4,
 710                         TRUE);
 711     s_offset += 4;
 712     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_interval, tvb, s_offset, 4,
 713                         TRUE);
 714     s_offset += 4;
 715     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_start_time, tvb, s_offset, 4,
 716                         TRUE);
 717     s_offset += 4;
 718   }
 719 }
 720
 721 static void dissect_wifi_p2p_group_info(packet_info *pinfo,
 722                                         proto_item *tlv_root,
 723                                         proto_item *tlv_item,
 724                                         tvbuff_t *tvb, int offset,
 725                                         guint16 slen)
 726 {
 727   int s_offset = offset + 3;
 728   int next_offset, ci_len, num_sec, left, nlen;
 729   guint16 attr_type, attr_len;
 730   proto_item *item;
 731
 732   while (offset + 3 + slen > s_offset) {
 733     if (offset + 3 + slen - s_offset < 25) {
 734       expert_add_info_format(pinfo, tlv_item, PI_MALFORMED, PI_ERROR,
 735                              "Too short P2P Client Info Descriptor");
 736       break;
 737     }
 738
 739     item = proto_tree_add_item(tlv_root, hf_p2p_attr_gi_length, tvb, s_offset,
 740                                1, FALSE);
 741     ci_len = tvb_get_guint8(tvb, s_offset);
 742     if (ci_len < 24 || s_offset + ci_len > offset + 3 + slen) {
 743       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 744                              "Invalid P2P Client Info Descriptor Length");
 745       break;
 746     }
 747     s_offset++;
 748     next_offset = s_offset + ci_len;
 749
 750     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_p2p_dev_addr, tvb, s_offset,
 751                         6, FALSE);
 752     s_offset += 6;
 753
 754     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_p2p_iface_addr, tvb, s_offset,
 755                         6, FALSE);
 756     s_offset += 6;
 757
 758     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_dev_capab, tvb, s_offset, 1,
 759                         FALSE);
 760     proto_tree_add_item(tlv_root,
 761                         hf_p2p_attr_gi_dev_capab_service_discovery, tvb,
 762                         s_offset, 1, FALSE);
 763     proto_tree_add_item(tlv_root,
 764                         hf_p2p_attr_gi_dev_capab_client_discoverability,
 765                         tvb, s_offset, 1, FALSE);
 766     proto_tree_add_item(tlv_root,
 767                         hf_p2p_attr_gi_dev_capab_concurrent_operation,
 768                         tvb, s_offset, 1, FALSE);
 769     proto_tree_add_item(tlv_root,
 770                         hf_p2p_attr_gi_dev_capab_infrastructure_managed,
 771                         tvb, s_offset, 1, FALSE);
 772     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_dev_capab_limit, tvb,
 773                         s_offset, 1, FALSE);
 774     proto_tree_add_item(tlv_root, hf_p2p_attr_capab_invitation_procedure, tvb,
 775                         s_offset, 1, FALSE);
 776     s_offset++;
 777
 778     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_config_methods, tvb, s_offset,
 779                         2, FALSE);
 780     s_offset += 2;
 781
 782     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_pri_dev_type, tvb,
 783                         s_offset, 8, FALSE);
 784     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_pri_dev_type_category,
 785                         tvb, s_offset, 2, FALSE);
 786     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_pri_dev_type_oui,
 787                         tvb, s_offset + 2, 4, FALSE);
 788     proto_tree_add_item(tlv_root, hf_p2p_attr_gi_pri_dev_type_subcategory,
 789                         tvb, s_offset + 6, 2, FALSE);
 790     s_offset += 8;
 791
 792     item = proto_tree_add_item(tlv_root, hf_p2p_attr_gi_num_sec_dev_types, tvb,
 793                                s_offset, 1, FALSE);
 794     num_sec = tvb_get_guint8(tvb, s_offset);
 795     s_offset++;
 796     left = offset + 3 + slen - s_offset;
 797     if (left < 8 * num_sec) {
 798       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 799                              "Invalid Secondary Device Type List");
 800       break;
 801     }
 802     while (num_sec > 0) {
 803       proto_tree_add_item(tlv_root, hf_p2p_attr_gi_sec_dev_type,
 804                           tvb, s_offset, 8, FALSE);
 805       s_offset += 8;
 806       num_sec--;
 807     }
 808
 809     item = proto_tree_add_item(tlv_root, hf_p2p_attr_gi_dev_name_type,
 810                                tvb, s_offset, 2, FALSE);
 811     attr_type = tvb_get_ntohs(tvb, s_offset);
 812     if (attr_type != 0x1011) {
 813       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 814                              "Incorrect Device Name attribute type");
 815     }
 816     s_offset += 2;
 817     item = proto_tree_add_item(tlv_root, hf_p2p_attr_gi_dev_name_len,
 818                                tvb, s_offset, 2, FALSE);
 819     attr_len = tvb_get_ntohs(tvb, s_offset);
 820     s_offset += 2;
 821     if (attr_len > offset + 3 + slen - s_offset) {
 822       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 823                              "Invalid Device Name attribute length");
 824       break;
 825     }
 826     nlen = offset + 3 + slen - s_offset;
 827     if (nlen > 0)
 828       item = proto_tree_add_item(tlv_root, hf_p2p_attr_gi_dev_name,
 829                                  tvb, s_offset,
 830                                  nlen > attr_len ? attr_len : nlen,
 831                                  FALSE);
 832     if (nlen != attr_len) {
 833       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
 834                              "Invalid Device Name attribute");
 835     }
 836
 837     s_offset = next_offset;
 838   }
 839 }
 840
 841 static void dissect_invitation_flags(proto_item *tlv_root,
 842                                      proto_item *tlv_item,
 843                                      tvbuff_t *tvb, int offset)
 844 {
 845   proto_tree_add_item(tlv_root, hf_p2p_attr_invitation_flags, tvb,
 846                       offset + 3, 1, FALSE);
 847   proto_tree_add_item(tlv_root, hf_p2p_attr_invitation_flags_type, tvb,
 848                       offset + 3, 1, FALSE);
 849   proto_item_append_text(tlv_item, ": Invitation Flags 0x%x",
 850                          tvb_get_guint8(tvb, offset + 3));
 851 }
 852
 853 static void dissect_manageability(proto_item *tlv_root,
 854                                   proto_item *tlv_item,
 855                                   tvbuff_t *tvb, int offset)
 856 {
 857   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap, tvb,
 858                       offset + 3, 1, FALSE);
 859   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_mgmt, tvb,
 860                       offset + 3, 1, FALSE);
 861   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_cross_connect,
 862                       tvb, offset + 3, 1, FALSE);
 863   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_coex_opt, tvb,
 864                       offset + 3, 1, FALSE);
 865   proto_item_append_text(tlv_item, ": Bitmap field 0x%x",
 866                          tvb_get_guint8(tvb, offset + 3));
 867 }
 868
 869 static void dissect_minor_reason_code(proto_item *tlv_root,
 870                                       proto_item *tlv_item,
 871                                       tvbuff_t *tvb, int offset)
 872 {
 873   proto_tree_add_item(tlv_root, hf_p2p_attr_minor_reason_code, tvb,
 874                       offset + 3, 1, FALSE);
 875   proto_item_append_text(tlv_item, ": %u (%s)",
 876                          tvb_get_guint8(tvb, offset + 3),
 877                          val_to_str(tvb_get_guint8(tvb, offset + 3),
 878                                     p2p_minor_reason_codes,
 879                                     "Unknown Minor Reason Code (%u)"));
 880 }
 881
 882 void dissect_wifi_p2p_ie(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb,
 883                          int offset, gint size)
 884 {
 885   guint16 slen = 0;
 886   guint8 stype = 0;
 887   proto_item *tlv_root, *tlv_item;
 888
 889   while (size > 0) {
 890     if (size < 3) {
 891       expert_add_info_format(pinfo, NULL, PI_MALFORMED, PI_ERROR,
 892                              "Packet too short for P2P IE");
 893       break;
 894     }
 895
 896     stype = tvb_get_guint8(tvb, offset);
 897     slen = tvb_get_letohs(tvb, offset + 1);
 898
 899     tlv_item = proto_tree_add_text(tree, tvb, offset, 3 + slen, "%s",
 900                                    val_to_str(stype, p2p_attr_types,
 901                                               "Unknown attribute type (%u)"));
 902     tlv_root = proto_item_add_subtree(tlv_item, ett_p2p_tlv);
 903
 904     proto_tree_add_item(tlv_root, hf_p2p_attr_type, tvb, offset, 1, FALSE);
 905     proto_tree_add_uint(tlv_root, hf_p2p_attr_len, tvb, offset + 1, 2,
 906                         slen);
 907
 908     switch(stype) {
 909     case P2P_ATTR_P2P_CAPABILITY:
 910       dissect_wifi_p2p_capability(tlv_root, tlv_item, tvb, offset);
 911       break;
 912     case P2P_ATTR_P2P_DEVICE_ID:
 913       dissect_device_id(tlv_root, tlv_item, tvb, offset);
 914       break;
 915     case P2P_ATTR_GROUP_OWNER_INTENT:
 916       dissect_group_owner_intent(tlv_root, tlv_item, tvb, offset);
 917       break;
 918     case P2P_ATTR_STATUS:
 919       dissect_status(tlv_root, tlv_item, tvb, offset);
 920       break;
 921     case P2P_ATTR_LISTEN_CHANNEL:
 922       dissect_listen_channel(tlv_root, tlv_item, tvb, offset);
 923       break;
 924     case P2P_ATTR_OPERATING_CHANNEL:
 925       dissect_operating_channel(tlv_root, tlv_item, tvb, offset);
 926       break;
 927     case P2P_ATTR_CHANNEL_LIST:
 928       dissect_channel_list(tlv_root, tvb, offset, slen);
 929       break;
 930     case P2P_ATTR_P2P_DEVICE_INFO:
 931       dissect_wifi_p2p_device_info(pinfo, tlv_root, tvb, offset, slen);
 932       break;
 933     case P2P_ATTR_CONFIGURATION_TIMEOUT:
 934       dissect_configuration_timeout(tlv_root, tlv_item, tvb, offset);
 935       break;
 936     case P2P_ATTR_INTENDED_P2P_INTERFACE_ADDRESS:
 937       dissect_intended_interface_addr(tlv_root, tlv_item, tvb, offset);
 938       break;
 939     case P2P_ATTR_EXTENDED_LISTEN_TIMING:
 940       dissect_extended_listen_timing(tlv_root, tlv_item, tvb, offset);
 941       break;
 942     case P2P_ATTR_P2P_GROUP_ID:
 943       dissect_wifi_p2p_group_id(tlv_root, tlv_item, tvb, offset, slen);
 944       break;
 945     case P2P_ATTR_P2P_GROUP_BSSID:
 946       dissect_wifi_p2p_group_bssid(pinfo, tlv_root, tlv_item, tvb, offset, slen);
 947       break;
 948     case P2P_ATTR_NOTICE_OF_ABSENCE:
 949       dissect_notice_of_absence(pinfo, tlv_root, tlv_item, tvb, offset, slen);
 950       break;
 951     case P2P_ATTR_P2P_GROUP_INFO:
 952       dissect_wifi_p2p_group_info(pinfo, tlv_root, tlv_item, tvb, offset,
 953                                   slen);
 954       break;
 955     case P2P_ATTR_INVITATION_FLAGS:
 956       dissect_invitation_flags(tlv_root, tlv_item, tvb, offset);
 957       break;
 958     case P2P_ATTR_P2P_MANAGEABILITY:
 959       dissect_manageability(tlv_root, tlv_item, tvb, offset);
 960       break;
 961     case P2P_ATTR_MINOR_REASON_CODE:
 962       dissect_minor_reason_code(tlv_root, tlv_item, tvb, offset);
 963       break;
 964     }
 965
 966     offset += 3 + slen;
 967     size -= 3 + slen;
 968   }
 969 }
 970
 971 int dissect_wifi_p2p_public_action(proto_tree *tree, tvbuff_t *tvb, int offset)
 972 {
 973   proto_tree_add_item(tree, hf_p2p_public_action_subtype, tvb, offset, 1,
 974                       FALSE);
 975   offset++;
 976   proto_tree_add_item(tree, hf_p2p_public_action_dialog_token, tvb, offset, 1,
 977                       FALSE);
 978   offset++;
 979   /* Followed by variable length IEs dissected by packet-ieee80211.c */
 980   return offset;
 981 }
 982
 983 int dissect_wifi_p2p_action(proto_tree *tree, tvbuff_t *tvb, int offset)
 984 {
 985   proto_tree_add_item(tree, hf_p2p_action_subtype, tvb, offset, 1, FALSE);
 986   offset++;
 987   proto_tree_add_item(tree, hf_p2p_action_dialog_token, tvb, offset, 1, FALSE);
 988   offset++;
 989   /* Followed by variable length IEs dissected by packet-ieee80211.c */
 990   return offset;
 991 }
 992
 993 void dissect_wifi_p2p_anqp(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb,
 994                            int offset, gboolean request)
 995 {
 996   proto_item *item;
 997
 998   item = proto_tree_add_item(tree, hf_p2p_anqp_service_update_indicator, tvb,
 999                              offset, 2, TRUE);
1000   offset += 2;
1001
1002   while (tvb_length_remaining(tvb, offset) >= (request ? 4 : 5)) {
1003     guint16 len;
1004     proto_tree *tlv;
1005     guint8 type, id;
1006
1007     len = tvb_get_letohs(tvb, offset);
1008     if (len < 2) {
1009       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
1010                              "Too short Service TLV field");
1011       return;
1012     }
1013     if (len > tvb_length_remaining(tvb, offset + 2)) {
1014       expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
1015                              "Too short frame for Service TLV field");
1016       return;
1017     }
1018
1019     type = tvb_get_guint8(tvb, offset + 2);
1020     id = tvb_get_guint8(tvb, offset + 3);
1021     item = proto_tree_add_text(tree, tvb, offset, 2 + len,
1022                                "Service TLV (Transaction ID: %u  Type: %s)",
1023                                id, val_to_str(type, p2p_service_protocol_types,
1024                                               "Unknown (%u)"));
1025     tlv = proto_item_add_subtree(item, ett_p2p_service_tlv);
1026
1027     proto_tree_add_item(tlv, hf_p2p_anqp_length, tvb, offset, 2, TRUE);
1028     offset += 2;
1029     proto_tree_add_item(tlv, hf_p2p_anqp_service_protocol_type, tvb,
1030                         offset, 1, FALSE);
1031     proto_tree_add_item(tlv, hf_p2p_anqp_service_transaction_id, tvb,
1032                         offset + 1, 1, FALSE);
1033     if (request) {
1034       proto_tree_add_item(tlv, hf_p2p_anqp_query_data, tvb,
1035                           offset + 2, len - 2, FALSE);
1036     } else {
1037       proto_tree_add_item(tlv, hf_p2p_anqp_status_code, tvb,
1038                           offset + 2, 1, FALSE);
1039       proto_tree_add_item(tlv, hf_p2p_anqp_response_data, tvb,
1040                           offset + 3, len - 3, FALSE);
1041     }
1042     offset += len;
1043   }
1044
1045   if (tvb_length_remaining(tvb, offset) > 0) {
1046     expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
1047                            "Unexpected padding in the end of P2P ANQP");
1048   }
1049 }
1050
1051 void
1052 proto_register_p2p(void)
1053 {
1054   static hf_register_info hf[] = {
1055     { &hf_p2p_attr_type,
1056       { "Attribute Type", "wifi_p2p.type",
1057         FT_UINT8, BASE_DEC, VALS(p2p_attr_types), 0x0, NULL, HFILL }},
1058     { &hf_p2p_attr_len,
1059       { "Attribute Length", "wifi_p2p.length",
1060         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1061
1062     { &hf_p2p_attr_capab,
1063       { "P2P Capability", "wifi_p2p.p2p_capability",
1064         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1065     { &hf_p2p_attr_capab_device,
1066       { "Device Capability Bitmap",
1067         "wifi_p2p.p2p_capability.device_capability",
1068         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1069     { &hf_p2p_attr_capab_device_service_discovery,
1070       { "Service Discovery",
1071         "wifi_p2p.p2p_capability.device_capability.service_discovery",
1072         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_SERVICE_DISCOVERY, NULL, HFILL
1073       }},
1074     { &hf_p2p_attr_capab_device_client_discoverability,
1075       { "P2P Client Discoverability",
1076         "wifi_p2p.p2p_capability.device_capability.client_discoverability",
1077         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY,
1078         NULL, HFILL
1079       }},
1080     { &hf_p2p_attr_capab_device_concurrent_operation,
1081       { "Concurrent Operation",
1082         "wifi_p2p.p2p_capability.device_capability.concurrent_operation",
1083         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_CONCURRENT_OPERATION, NULL,
1084         HFILL
1085       }},
1086     { &hf_p2p_attr_capab_device_infrastructure_managed,
1087       { "P2P Infrastructure Managed",
1088         "wifi_p2p.p2p_capability.device_capability.infrastructure_managed",
1089         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED,
1090         NULL, HFILL
1091       }},
1092     { &hf_p2p_attr_capab_device_limit,
1093       { "P2P Device Limit",
1094         "wifi_p2p.p2p_capability.device_capability.device_limit",
1095         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_DEVICE_LIMIT, NULL, HFILL
1096       }},
1097     { &hf_p2p_attr_capab_invitation_procedure,
1098       { "P2P Invitation Procedure",
1099         "wifi_p2p.p2p_capability.device_capability.invitation_procedure",
1100         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE, NULL,
1101         HFILL
1102       }},
1103     { &hf_p2p_attr_capab_group,
1104       { "Group Capability Bitmap", "wifi_p2p.p2p_capability.group_capability",
1105         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1106     { &hf_p2p_attr_capab_group_owner,
1107       { "P2P Group Owner",
1108         "wifi_p2p.p2p_capability.group_capability.group_owner",
1109         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_P2P_GROUP_OWNER, NULL, HFILL
1110       }},
1111     { &hf_p2p_attr_capab_group_persistent,
1112       { "Persistent P2P Group",
1113         "wifi_p2p.p2p_capability.group_capability.persistent_group",
1114         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_PERSISTENT_P2P_GROUP, NULL,
1115         HFILL }},
1116     { &hf_p2p_attr_capab_group_limit,
1117       { "P2P Group Limit",
1118         "wifi_p2p.p2p_capability.group_capability.group_limit",
1119         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_P2P_GROUP_LIMIT, NULL, HFILL
1120       }},
1121     { &hf_p2p_attr_capab_group_intra_bss_distribution,
1122       { "Intra-BSS Distribution",
1123         "wifi_p2p.p2p_capability.group_capability.intra_bss_distribution",
1124         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_INTRA_BSS_DISTRIBUTION, NULL,
1125         HFILL }},
1126     { &hf_p2p_attr_capab_group_cross_connection,
1127       { "Cross Connection",
1128         "wifi_p2p.p2p_capability.group_capability.cross_connection",
1129         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_CROSS_CONNECTION, NULL, HFILL
1130       }},
1131     { &hf_p2p_attr_capab_group_persistent_reconnect,
1132       { "Persistent Reconnect",
1133         "wifi_p2p.p2p_capability.group_capability.persistent_reconnect",
1134         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_PERSISTENT_RECONNECT, NULL,
1135         HFILL }},
1136     { &hf_p2p_attr_capab_group_group_formation,
1137       { "Group Formation",
1138         "wifi_p2p.p2p_capability.group_capability.group_formation",
1139         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_GROUP_FORMATION, NULL, HFILL
1140       }},
1141
1142     { &hf_p2p_attr_device_id,
1143       { "Device ID", "wifi_p2p.device_id",
1144         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1145
1146     { &hf_p2p_attr_status,
1147       { "Status Code", "wifi_p2p.status",
1148         FT_UINT8, BASE_DEC, VALS(p2p_status_codes), 0x0, NULL, HFILL }},
1149
1150     { &hf_p2p_attr_go_intent,
1151       { "Group Owner Intent", "wifi_p2p.go_intent",
1152         FT_UINT8, BASE_DEC, NULL, 0x1e, NULL, HFILL }},
1153     { &hf_p2p_attr_go_intent_tie_breaker,
1154       { "Group Owner Intent Tie Breaker", "wifi_p2p.go_intent_tie_breaker",
1155         FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }},
1156
1157     { &hf_p2p_attr_listen_channel,
1158       { "Listen Channel", "wifi_p2p.listen_channel",
1159         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1160     { &hf_p2p_attr_listen_channel_country,
1161       { "Country String", "wifi_p2p.listen_channel.country_string",
1162         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1163     { &hf_p2p_attr_listen_channel_oper_class,
1164       { "Operating Class", "wifi_p2p.listen_channel.operating_class",
1165         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1166     { &hf_p2p_attr_listen_channel_number,
1167       { "Channel Number", "wifi_p2p.listen_channel.channel_number",
1168         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1169
1170     { &hf_p2p_attr_operating_channel,
1171       { "Operating Channel", "wifi_p2p.operating_channel",
1172         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1173     { &hf_p2p_attr_operating_channel_country,
1174       { "Country String", "wifi_p2p.operating_channel.country_string",
1175         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1176     { &hf_p2p_attr_operating_channel_oper_class,
1177       { "Operating Class", "wifi_p2p.channel.operating_class",
1178         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1179     { &hf_p2p_attr_operating_channel_number,
1180       { "Channel Number", "wifi_p2p.channel.channel_number",
1181         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1182
1183     { &hf_p2p_attr_channel_list,
1184       { "Channel List", "wifi_p2p.channel_list",
1185         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1186     { &hf_p2p_attr_channel_list_country,
1187       { "Country String", "wifi_p2p.channel_list.country_string",
1188         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1189     { &hf_p2p_attr_channel_list_oper_class,
1190       { "Operating Class", "wifi_p2p.channel_list.operating_class",
1191         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1192     { &hf_p2p_attr_channel_list_num_chan,
1193       { "Number of Channels", "wifi_p2p.channel_list.num_chan",
1194         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1195     { &hf_p2p_attr_channel_list_chan,
1196       { "Channel List", "wifi_p2p.channel_list.channel_list",
1197         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1198
1199     { &hf_p2p_attr_dev_info,
1200       { "Device Info", "wifi_p2p.dev_info",
1201         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1202     { &hf_p2p_attr_dev_info_p2p_dev_addr,
1203       { "P2P Device address", "wifi_p2p.dev_info.p2p_dev_addr",
1204         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1205     { &hf_p2p_attr_dev_info_pri_dev_type,
1206       { "Primary Device Type", "wifi_p2p.dev_info.pri_dev_type",
1207         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1208     { &hf_p2p_attr_dev_info_pri_dev_type_category,
1209       { "Primary Device Type: Category",
1210         "wifi_p2p.dev_info.pri_dev_type.category",
1211         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1212     { &hf_p2p_attr_dev_info_pri_dev_type_oui,
1213       { "Primary Device Type: OUI", "wifi_p2p.dev_info.pri_dev_type.oui",
1214         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1215     { &hf_p2p_attr_dev_info_pri_dev_type_subcategory,
1216       { "Primary Device Type: Subcategory",
1217         "wifi_p2p.dev_info.pri_dev_type.subcategory",
1218         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1219     { &hf_p2p_attr_dev_info_num_sec,
1220       { "Number of Secondary Device Types", "wifi_p2p.dev_info.num_sec",
1221         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1222     { &hf_p2p_attr_dev_info_sec_dev_type,
1223       { "Secondary Device Type", "wifi_p2p.dev_info.sec_dev_type",
1224         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1225     { &hf_p2p_attr_dev_info_dev_name_type,
1226       { "Device Name attribute type", "wifi_p2p.dev_info.dev_name_type",
1227         FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1228     { &hf_p2p_attr_dev_info_dev_name_len,
1229       { "Device Name attribute length", "wifi_p2p.dev_info.dev_name",
1230         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1231     { &hf_p2p_attr_dev_info_dev_name,
1232       { "Device Name", "wifi_p2p.dev_info.dev_name",
1233         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1234     { &hf_p2p_attr_dev_info_config_methods,
1235       { "Config Methods", "wifi_p2p.dev_info.config_methods",
1236         FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
1237     { &hf_p2p_attr_dev_info_config_methods_usba,
1238       { "USBA (Flash Drive)", "wifi_p2p.dev_info.config_methods.usba",
1239         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_USBA, NULL, HFILL }},
1240     { &hf_p2p_attr_dev_info_config_methods_ethernet,
1241       { "Ethernet", "wifi_p2p.dev_info.config_methods.ethernet",
1242         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_ETHERNET, NULL, HFILL }},
1243     { &hf_p2p_attr_dev_info_config_methods_label,
1244       { "Label", "wifi_p2p.dev_info.config_methods.label",
1245         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_LABEL, NULL, HFILL }},
1246     { &hf_p2p_attr_dev_info_config_methods_display,
1247       { "Display", "wifi_p2p.dev_info.config_methods.display",
1248         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_DISPLAY, NULL, HFILL }},
1249     { &hf_p2p_attr_dev_info_config_methods_ext_nfc_token,
1250       { "External NFC Token", "wifi_p2p.dev_info.config_methods.ext_nfc_token",
1251         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_EXT_NFC_TOKEN, NULL, HFILL }},
1252     { &hf_p2p_attr_dev_info_config_methods_int_nfc_token,
1253       { "Integrated NFC Token",
1254         "wifi_p2p.dev_info.config_methods.int_nfc_token",
1255         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_INT_NFC_TOKEN, NULL, HFILL }},
1256     { &hf_p2p_attr_dev_info_config_methods_nfc_interface,
1257       { "NFC Interface", "wifi_p2p.dev_info.config_methods.nfc_interface",
1258         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_NFC_INTERFACE, NULL, HFILL }},
1259     { &hf_p2p_attr_dev_info_config_methods_pushbutton,
1260       { "PushButton", "wifi_p2p.dev_info.config_methods.pushbutton",
1261         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_PUSHBUTTON, NULL, HFILL }},
1262     { &hf_p2p_attr_dev_info_config_methods_keypad,
1263       { "Keypad", "wifi_p2p.dev_info.config_methods.keypad",
1264         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_KEYPAD, NULL, HFILL }},
1265     { &hf_p2p_attr_config_timeout_go,
1266       { "GO Configuration Timeout", "wifi_p2p.config_timeout.go",
1267         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1268     { &hf_p2p_attr_config_timeout_client,
1269       { "Client Configuration Timeout", "wifi_p2p.config_timeout.client",
1270         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1271     { &hf_p2p_attr_intended_interface_addr,
1272       { "P2P Interface Address", "wifi_p2p.intended_interface_addr",
1273         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1274     { &hf_p2p_attr_extended_listen_timing_period,
1275       { "Availability Period", "wifi_p2p.extended_listen_timing.period",
1276         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1277     { &hf_p2p_attr_extended_listen_timing_interval,
1278       { "Availability Interval", "wifi_p2p.extended_listen_timing.interval",
1279         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1280     { &hf_p2p_attr_p2p_group_id_dev_addr,
1281       { "P2P Device address", "wifi_p2p.p2p_group_id.p2p_dev_addr",
1282         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1283     { &hf_p2p_attr_p2p_group_id_ssid,
1284       { "SSID", "wifi_p2p.p2p_group_id.ssid",
1285         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1286     { &hf_p2p_attr_p2p_group_bssid,
1287       { "BSSID", "wifi_p2p.p2p_group_bssid",
1288         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1289
1290     { &hf_p2p_attr_noa_index,
1291       { "Index", "wifi_p2p.noa.index",
1292         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1293     { &hf_p2p_attr_noa_params,
1294       { "CTWindow and OppPS Parameters", "wifi_p2p.noa.params",
1295         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1296     { &hf_p2p_attr_noa_params_opp_ps,
1297       { "OppPS", "wifi_p2p.noa.params.opp_ps",
1298         FT_UINT8, BASE_DEC, NULL, 0x80, NULL, HFILL }},
1299     { &hf_p2p_attr_noa_params_ctwindow,
1300       { "CTWindow", "wifi_p2p.noa.params.ctwindow",
1301         FT_UINT8, BASE_DEC, NULL, 0x7f, NULL, HFILL }},
1302     { &hf_p2p_attr_noa_count_type,
1303       { "Count/Type", "wifi_p2p.noa.count_type",
1304         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1305     { &hf_p2p_attr_noa_duration,
1306       { "Duration", "wifi_p2p.noa.duration",
1307         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1308     { &hf_p2p_attr_noa_interval,
1309       { "Interval", "wifi_p2p.noa.interval",
1310         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1311     { &hf_p2p_attr_noa_start_time,
1312       { "Start Time", "wifi_p2p.noa.start_time",
1313         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1314
1315     { &hf_p2p_attr_gi,
1316       { "Device Info", "wifi_p2p.group_info",
1317         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1318     { &hf_p2p_attr_gi_length,
1319       { "P2P Client Info Descriptor Length", "wifi_p2p.group_info.length",
1320         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1321     { &hf_p2p_attr_gi_p2p_dev_addr,
1322       { "P2P Device address", "wifi_p2p.group_info.p2p_dev_addr",
1323         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1324     { &hf_p2p_attr_gi_p2p_iface_addr,
1325       { "P2P Interface address", "wifi_p2p.group_info.p2p_interface_addr",
1326         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1327     { &hf_p2p_attr_gi_dev_capab,
1328       { "Device Capability Bitmap", "wifi_p2p.group_info.device_capability",
1329         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1330     { &hf_p2p_attr_gi_dev_capab_service_discovery,
1331       { "Service Discovery",
1332         "wifi_p2p.group_info.device_capability.service_discovery",
1333         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_SERVICE_DISCOVERY, NULL, HFILL
1334       }},
1335     { &hf_p2p_attr_gi_dev_capab_client_discoverability,
1336       { "P2P Client Discoverability",
1337         "wifi_p2p.group_info.device_capability.client_discoverability",
1338         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY,
1339         NULL, HFILL
1340       }},
1341     { &hf_p2p_attr_gi_dev_capab_concurrent_operation,
1342       { "Concurrent Operation",
1343         "wifi_p2p.group_info.device_capability.concurrent_operation",
1344         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_CONCURRENT_OPERATION, NULL,
1345         HFILL
1346       }},
1347     { &hf_p2p_attr_gi_dev_capab_infrastructure_managed,
1348       { "P2P Infrastructure Managed",
1349         "wifi_p2p.group_info.device_capability.infrastructure_managed",
1350         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED,
1351         NULL, HFILL
1352       }},
1353     { &hf_p2p_attr_gi_dev_capab_limit,
1354       { "P2P Device Limit",
1355         "wifi_p2p.group_info.device_capability.device_limit",
1356         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_DEVICE_LIMIT, NULL, HFILL
1357       }},
1358     { &hf_p2p_attr_gi_dev_capab_invitation_procedure,
1359       { "P2P Invitation Procedure",
1360         "wifi_p2p.group_info.device_capability.invitation_procedure",
1361         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE, NULL,
1362         HFILL
1363       }},
1364     { &hf_p2p_attr_gi_pri_dev_type,
1365       { "Primary Device Type", "wifi_p2p.group_info.pri_dev_type",
1366         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1367     { &hf_p2p_attr_gi_pri_dev_type_category,
1368       { "Primary Device Type: Category",
1369         "wifi_p2p.group_info.pri_dev_type.category",
1370         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1371     { &hf_p2p_attr_gi_pri_dev_type_oui,
1372       { "Primary Device Type: OUI", "wifi_p2p.group_info.pri_dev_type.oui",
1373         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1374     { &hf_p2p_attr_gi_pri_dev_type_subcategory,
1375       { "Primary Device Type: Subcategory",
1376         "wifi_p2p.group_info.pri_dev_type.subcategory",
1377         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1378     { &hf_p2p_attr_gi_num_sec_dev_types,
1379       { "Number of Secondary Device Types", "wifi_p2p.group_info.num_sec",
1380         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1381     { &hf_p2p_attr_gi_sec_dev_type,
1382       { "Secondary Device Type", "wifi_p2p.group_info.sec_dev_type",
1383         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1384     { &hf_p2p_attr_gi_dev_name_type,
1385       { "Device Name attribute type", "wifi_p2p.group_info.dev_name_type",
1386         FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1387     { &hf_p2p_attr_gi_dev_name_len,
1388       { "Device Name attribute length", "wifi_p2p.group_info.dev_name",
1389         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1390     { &hf_p2p_attr_gi_dev_name,
1391       { "Device Name", "wifi_p2p.group_info.dev_name",
1392         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1393     { &hf_p2p_attr_gi_config_methods,
1394       { "Config Methods", "wifi_p2p.group_info.config_methods",
1395         FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
1396     { &hf_p2p_attr_gi_config_methods_usba,
1397       { "USBA (Flash Drive)", "wifi_p2p.group_info.config_methods.usba",
1398         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_USBA, NULL, HFILL }},
1399     { &hf_p2p_attr_gi_config_methods_ethernet,
1400       { "Ethernet", "wifi_p2p.group_info.config_methods.ethernet",
1401         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_ETHERNET, NULL, HFILL }},
1402     { &hf_p2p_attr_gi_config_methods_label,
1403       { "Label", "wifi_p2p.group_info.config_methods.label",
1404         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_LABEL, NULL, HFILL }},
1405     { &hf_p2p_attr_gi_config_methods_display,
1406       { "Display", "wifi_p2p.group_info.config_methods.display",
1407         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_DISPLAY, NULL, HFILL }},
1408     { &hf_p2p_attr_gi_config_methods_ext_nfc_token,
1409       { "External NFC Token",
1410         "wifi_p2p.group_info.config_methods.ext_nfc_token",
1411         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_EXT_NFC_TOKEN, NULL, HFILL }},
1412     { &hf_p2p_attr_gi_config_methods_int_nfc_token,
1413       { "Integrated NFC Token",
1414         "wifi_p2p.group_info.config_methods.int_nfc_token",
1415         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_INT_NFC_TOKEN, NULL, HFILL }},
1416     { &hf_p2p_attr_gi_config_methods_nfc_interface,
1417       { "NFC Interface", "wifi_p2p.group_info.config_methods.nfc_interface",
1418         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_NFC_INTERFACE, NULL, HFILL }},
1419     { &hf_p2p_attr_gi_config_methods_pushbutton,
1420       { "PushButton", "wifi_p2p.group_info.config_methods.pushbutton",
1421         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_PUSHBUTTON, NULL, HFILL }},
1422     { &hf_p2p_attr_gi_config_methods_keypad,
1423       { "Keypad", "wifi_p2p.group_info.config_methods.keypad",
1424         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_KEYPAD, NULL, HFILL }},
1425
1426     { &hf_p2p_attr_invitation_flags,
1427       { "Invitation Flags", "wifi_p2p.invitation_flags",
1428         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1429     { &hf_p2p_attr_invitation_flags_type,
1430       { "Invitation Type", "wifi_p2p.invitation_flags.type",
1431         FT_UINT8, BASE_HEX, VALS(invitation_types), 0x01, NULL, HFILL }},
1432
1433     { &hf_p2p_attr_manageability_bitmap,
1434       { "Manageability Bitmap field", "wifi_p2p.manageability.bitmap",
1435         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1436     { &hf_p2p_attr_manageability_bitmap_mgmt,
1437       { "P2P Device Management", "wifi_p2p.manageability.bitmap.dev_mgmt",
1438         FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL }},
1439     { &hf_p2p_attr_manageability_bitmap_cross_connect,
1440       { "Cross Connection Permitted",
1441         "wifi_p2p.manageability.bitmap.cross_connect",
1442         FT_UINT8, BASE_HEX, NULL, 0x02, NULL, HFILL }},
1443     { &hf_p2p_attr_manageability_bitmap_coex_opt,
1444       { "Coexistence Optional", "wifi_p2p.manageability.bitmap.coex_opt",
1445         FT_UINT8, BASE_HEX, NULL, 0x04, NULL, HFILL }},
1446
1447     { &hf_p2p_attr_minor_reason_code,
1448       { "Minor Reason Code", "wifi_p2p.minor_reason_code",
1449         FT_UINT8, BASE_DEC, VALS(p2p_minor_reason_codes), 0x0, NULL, HFILL }},
1450
1451     { &hf_p2p_anqp_service_update_indicator,
1452       { "Service Update Indicator", "wifi_p2p.anqp.service_update_indicator",
1453         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1454     { &hf_p2p_anqp_length,
1455       { "Length", "wifi_p2p.anqp.length",
1456         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1457     { &hf_p2p_anqp_service_protocol_type,
1458       { "Service Protocol Type", "wifi_p2p.anqp.service_protocol_type",
1459         FT_UINT8, BASE_DEC, VALS(p2p_service_protocol_types), 0x0, NULL,
1460         HFILL }},
1461     { &hf_p2p_anqp_service_transaction_id,
1462       { "Service Transaction ID", "wifi_p2p.anqp.service_transaction_id",
1463         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1464     { &hf_p2p_anqp_query_data,
1465       { "Query Data", "wifi_p2p.anqp.query_data",
1466         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1467     { &hf_p2p_anqp_status_code,
1468       { "Status Code", "wifi_p2p.anqp.status_code",
1469         FT_UINT8, BASE_DEC, VALS(p2p_sd_status_codes), 0x0,
1470         "Service Query Status Code", HFILL }},
1471     { &hf_p2p_anqp_response_data,
1472       { "Response Data", "wifi_p2p.anqp.response_data",
1473         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1474
1475     { &hf_p2p_action_subtype,
1476       { "P2P Action Subtype", "wifi_p2p.action.subtype",
1477         FT_UINT8, BASE_DEC, VALS(p2p_action_subtypes), 0x0, NULL, HFILL }},
1478     { &hf_p2p_action_dialog_token,
1479       { "P2P Action Dialog Token", "wifi_p2p.action.dialog_token",
1480         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1481     { &hf_p2p_public_action_subtype,
1482       { "P2P Public Action Subtype", "wifi_p2p.public_action.subtype",
1483         FT_UINT8, BASE_DEC, VALS(p2p_public_action_subtypes), 0x0, NULL, HFILL
1484       }},
1485     { &hf_p2p_public_action_dialog_token,
1486       { "P2P Public Action Dialog Token",
1487         "wifi_p2p.public_action.dialog_token",
1488         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}
1489   };
1490   static gint *ett[] = {
1491     &ett_p2p_tlv,
1492     &ett_p2p_service_tlv
1493   };
1494
1495   proto_p2p = proto_register_protocol("Wi-Fi Peer-to-Peer", "Wi-Fi P2P",
1496                                       "wifi_p2p");
1497   proto_register_field_array(proto_p2p, hf, array_length(hf));
1498   proto_register_subtree_array(ett, array_length(ett));
1499 }
1500
1501 /*
1502  * Editor modelines
1503  *
1504  * Local Variables:
1505  * c-basic-offset: 2
1506  * tab-width: 8
1507  * indent-tabs-mode: nil
1508  * End:
1509  *
1510  * ex: set shiftwidth=2 tabstop=8 expandtab:
1511  * :indentSize=2:tabSize=8:noTabs=true:
1512  */