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  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "config.h"
  23
  24 #include <glib.h>
  25 #include <epan/packet.h>
  26 #include <epan/to_str.h>
  27 #include <epan/expert.h>
  28
  29 #include "packet-ieee80211.h"
  30
  31 void proto_register_p2p(void);
  32
  33 enum {
  34   P2P_ATTR_STATUS = 0,
  35   P2P_ATTR_MINOR_REASON_CODE = 1,
  36   P2P_ATTR_P2P_CAPABILITY = 2,
  37   P2P_ATTR_P2P_DEVICE_ID = 3,
  38   P2P_ATTR_GROUP_OWNER_INTENT = 4,
  39   P2P_ATTR_CONFIGURATION_TIMEOUT = 5,
  40   P2P_ATTR_LISTEN_CHANNEL = 6,
  41   P2P_ATTR_P2P_GROUP_BSSID = 7,
  42   P2P_ATTR_EXTENDED_LISTEN_TIMING = 8,
  43   P2P_ATTR_INTENDED_P2P_INTERFACE_ADDRESS = 9,
  44   P2P_ATTR_P2P_MANAGEABILITY = 10,
  45   P2P_ATTR_CHANNEL_LIST = 11,
  46   P2P_ATTR_NOTICE_OF_ABSENCE = 12,
  47   P2P_ATTR_P2P_DEVICE_INFO = 13,
  48   P2P_ATTR_P2P_GROUP_INFO = 14,
  49   P2P_ATTR_P2P_GROUP_ID = 15,
  50   P2P_ATTR_P2P_INTERFACE = 16,
  51   P2P_ATTR_OPERATING_CHANNEL = 17,
  52   P2P_ATTR_INVITATION_FLAGS = 18,
  53   /* 19-220 Reserved */
  54   P2P_ATTR_VENDOR_SPECIFIC = 221
  55   /* 222-255 Reserved */
  56 };
  57
  58 static const value_string p2p_attr_types[] = {
  59   { P2P_ATTR_STATUS, "Status" },
  60   { P2P_ATTR_MINOR_REASON_CODE, "Minor Reason Code" },
  61   { P2P_ATTR_P2P_CAPABILITY, "P2P Capability" },
  62   { P2P_ATTR_P2P_DEVICE_ID, "P2P Device ID" },
  63   { P2P_ATTR_GROUP_OWNER_INTENT, "Group Owner Intent" },
  64   { P2P_ATTR_CONFIGURATION_TIMEOUT, "Configuration Timeout" },
  65   { P2P_ATTR_LISTEN_CHANNEL, "Listen Channel" },
  66   { P2P_ATTR_P2P_GROUP_BSSID, "P2P Group BSSID" },
  67   { P2P_ATTR_EXTENDED_LISTEN_TIMING, "Extended Listen Timing" },
  68   { P2P_ATTR_INTENDED_P2P_INTERFACE_ADDRESS,
  69     "Intended P2P Interface Address" },
  70   { P2P_ATTR_P2P_MANAGEABILITY, "P2P Manageability" },
  71   { P2P_ATTR_CHANNEL_LIST, "Channel List" },
  72   { P2P_ATTR_NOTICE_OF_ABSENCE, "Notice of Absence" },
  73   { P2P_ATTR_P2P_DEVICE_INFO, "P2P Device Info" },
  74   { P2P_ATTR_P2P_GROUP_INFO, "P2P Group Info" },
  75   { P2P_ATTR_P2P_GROUP_ID, "P2P Group ID" },
  76   { P2P_ATTR_P2P_INTERFACE, "P2P Interface" },
  77   { P2P_ATTR_OPERATING_CHANNEL, "Operating Channel" },
  78   { P2P_ATTR_INVITATION_FLAGS, "Invitation Flags" },
  79   { P2P_ATTR_VENDOR_SPECIFIC, "Vendor specific attribute" },
  80   { 0, NULL }
  81 };
  82
  83 #define P2P_DEV_CAPAB_SERVICE_DISCOVERY 0x01
  84 #define P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY 0x02
  85 #define P2P_DEV_CAPAB_CONCURRENT_OPERATION 0x04
  86 #define P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED 0x08
  87 #define P2P_DEV_CAPAB_P2P_DEVICE_LIMIT 0x10
  88 #define P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE 0x20
  89
  90 #define P2P_GROUP_CAPAB_P2P_GROUP_OWNER 0x01
  91 #define P2P_GROUP_CAPAB_PERSISTENT_P2P_GROUP 0x02
  92 #define P2P_GROUP_CAPAB_P2P_GROUP_LIMIT 0x04
  93 #define P2P_GROUP_CAPAB_INTRA_BSS_DISTRIBUTION 0x08
  94 #define P2P_GROUP_CAPAB_CROSS_CONNECTION 0x10
  95 #define P2P_GROUP_CAPAB_PERSISTENT_RECONNECT 0x20
  96 #define P2P_GROUP_CAPAB_GROUP_FORMATION 0x40
  97
  98 #define WPS_CONF_METH_USBA 0x0001
  99 #define WPS_CONF_METH_ETHERNET 0x0002
 100 #define WPS_CONF_METH_LABEL 0x0004
 101 #define WPS_CONF_METH_DISPLAY 0x0008
 102 #define WPS_CONF_METH_EXT_NFC_TOKEN 0x0010
 103 #define WPS_CONF_METH_INT_NFC_TOKEN 0x0020
 104 #define WPS_CONF_METH_NFC_INTERFACE 0x0040
 105 #define WPS_CONF_METH_PUSHBUTTON 0x0080
 106 #define WPS_CONF_METH_KEYPAD 0x0100
 107
 108 enum {
 109   P2P_ACT_GO_NEG_REQ = 0,
 110   P2P_ACT_GO_NEG_RESP = 1,
 111   P2P_ACT_GO_NEG_CONF = 2,
 112   P2P_ACT_INVITATION_REQ = 3,
 113   P2P_ACT_INVITATION_RESP = 4,
 114   P2P_ACT_DEV_DISC_REQ = 5,
 115   P2P_ACT_DEV_DISC_RESP = 6,
 116   P2P_ACT_PROV_DISC_REQ = 7,
 117   P2P_ACT_PROV_DISC_RESP = 8
 118 };
 119
 120 static const value_string p2p_public_action_subtypes[] = {
 121   { P2P_ACT_GO_NEG_REQ, "GO Negotiation Request" },
 122   { P2P_ACT_GO_NEG_RESP, "GO Negotiation Response" },
 123   { P2P_ACT_GO_NEG_CONF, "GO Negotiation Confirmation" },
 124   { P2P_ACT_INVITATION_REQ, "P2P Invitation Request" },
 125   { P2P_ACT_INVITATION_RESP, "P2P Invitation Response" },
 126   { P2P_ACT_DEV_DISC_REQ, "Device Discoverability Request" },
 127   { P2P_ACT_DEV_DISC_RESP, "Device Discoverability Response" },
 128   { P2P_ACT_PROV_DISC_REQ, "Provision Discovery Request" },
 129   { P2P_ACT_PROV_DISC_RESP, "Provision Discovery Response" },
 130   { 0, NULL }
 131 };
 132
 133 enum {
 134   P2P_ACT_NOA = 0,
 135   P2P_ACT_P2P_PRESENCE_REQ = 1,
 136   P2P_ACT_P2P_PRESENCE_RESP = 2,
 137   P2P_ACT_GO_DISC_REQ = 3
 138 };
 139
 140 static const value_string p2p_action_subtypes[] = {
 141   { P2P_ACT_NOA, "Notice of Absence" },
 142   { P2P_ACT_P2P_PRESENCE_REQ, "P2P Presence Request" },
 143   { P2P_ACT_P2P_PRESENCE_RESP, "P2P Presence Response" },
 144   { P2P_ACT_GO_DISC_REQ, "GO Discoverability Request" },
 145   { 0, NULL }
 146 };
 147
 148 enum {
 149   P2P_STATUS_SUCCESS = 0,
 150   P2P_FAIL_INFORMATION_CURRENTLY_UNAVAILABLE = 1,
 151   P2P_FAIL_INCOMPATIBLE_PARAMETERS = 2,
 152   P2P_FAIL_LIMIT_REACHED = 3,
 153   P2P_FAIL_INVALID_PARAMETERS = 4,
 154   P2P_FAIL_UNABLE_TO_ACCOMMODATE = 5,
 155   P2P_FAIL_PREVIOUS_PROTOCOL_ERROR = 6,
 156   P2P_FAIL_NO_COMMON_CHANNELS = 7,
 157   P2P_FAIL_UNKNOWN_P2P_GROUP = 8,
 158   P2P_FAIL_BOTH_DEVICES_GO = 9,
 159   P2P_FAIL_INCOMPATIBLE_PROVISION_METHOD = 10,
 160   P2P_FAIL_REJECTED_BY_USER = 11
 161 };
 162
 163 static const value_string p2p_status_codes[] = {
 164   { P2P_STATUS_SUCCESS, "Success" },
 165   { P2P_FAIL_INFORMATION_CURRENTLY_UNAVAILABLE, "Fail; information is "
 166     "currently unavailable" },
 167   { P2P_FAIL_INCOMPATIBLE_PARAMETERS, "Fail; incompatible parameters" },
 168   { P2P_FAIL_LIMIT_REACHED, "Fail; limit reached" },
 169   { P2P_FAIL_INVALID_PARAMETERS, "Fail; invalid parameters" },
 170   { P2P_FAIL_UNABLE_TO_ACCOMMODATE, "Fail; unable to accommodate request" },
 171   { P2P_FAIL_PREVIOUS_PROTOCOL_ERROR, "Fail; previous protocol error, or "
 172     "disruptive behavior" },
 173   { P2P_FAIL_NO_COMMON_CHANNELS, "Fail; no common channels" },
 174   { P2P_FAIL_UNKNOWN_P2P_GROUP, "Fail; unknown P2P Group" },
 175   { P2P_FAIL_BOTH_DEVICES_GO, "Fail; both P2P Devices indicated an Intent of "
 176     "15 in Group Owner Negotiation" },
 177   { P2P_FAIL_INCOMPATIBLE_PROVISION_METHOD, "Fail; incompatible provisioning "
 178     "method" },
 179   { P2P_FAIL_REJECTED_BY_USER, "Fail; rejected by user" },
 180   { 0, NULL }
 181 };
 182
 183 enum {
 184   P2P_MINOR_RESERVED = 0,
 185   P2P_MINOR_DISCONNECT_DUE_TO_CROSS_CONNECTION = 1,
 186   P2P_MINOR_DISCONNECT_DUE_TO_NOT_P2P_MANAGED = 2,
 187   P2P_MINOR_DISCONNECT_DUE_TO_NO_COEXISTENCE = 3,
 188   P2P_MINOR_DISCONNECT_DUE_TO_OUTSIDE_POLICY = 4
 189 };
 190
 191 static const value_string p2p_minor_reason_codes[] = {
 192   { P2P_MINOR_RESERVED, "Reserved" },
 193   { P2P_MINOR_DISCONNECT_DUE_TO_CROSS_CONNECTION,
 194     "Disconnected because Cross Connection capability is not allow" },
 195   { P2P_MINOR_DISCONNECT_DUE_TO_NOT_P2P_MANAGED,
 196     "Disconnected because P2P Infrastructure Managed not supported" },
 197   { P2P_MINOR_DISCONNECT_DUE_TO_NO_COEXISTENCE,
 198     "Disconnected because concurrent device is not setting coexistence "
 199     "parameters" },
 200   { P2P_MINOR_DISCONNECT_DUE_TO_OUTSIDE_POLICY,
 201     "Disconnected because P2P operation is outside the IT defined policy" },
 202   { 0, NULL }
 203 };
 204
 205 static const value_string invitation_types[] = {
 206   { 0, "Join active P2P Group" },
 207   { 1, "Reinvoke Persistent Group" },
 208   { 0, NULL }
 209 };
 210
 211 static const value_string p2p_service_protocol_types[] = {
 212   { 0, "All Service Protocol Types" },
 213   { 1, "Bonjour" },
 214   { 2, "UPnP" },
 215   { 3, "WS-Discovery" },
 216   { 4, "Wi-Fi Display" },
 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 static gint ett_p2p_client_descr = -1;
 233
 234 static int hf_p2p_attr_type = -1;
 235 static int hf_p2p_attr_len = -1;
 236
 237 /* static int hf_p2p_attr_capab = -1; */
 238 static int hf_p2p_attr_capab_device = -1;
 239 static int hf_p2p_attr_capab_device_service_discovery = -1;
 240 static int hf_p2p_attr_capab_device_client_discoverability = -1;
 241 static int hf_p2p_attr_capab_device_concurrent_operation = -1;
 242 static int hf_p2p_attr_capab_device_infrastructure_managed = -1;
 243 static int hf_p2p_attr_capab_device_limit = -1;
 244 static int hf_p2p_attr_capab_invitation_procedure = -1;
 245 static int hf_p2p_attr_capab_group = -1;
 246 static int hf_p2p_attr_capab_group_owner = -1;
 247 static int hf_p2p_attr_capab_group_persistent = -1;
 248 static int hf_p2p_attr_capab_group_limit = -1;
 249 static int hf_p2p_attr_capab_group_intra_bss_distribution = -1;
 250 static int hf_p2p_attr_capab_group_cross_connection = -1;
 251 static int hf_p2p_attr_capab_group_persistent_reconnect = -1;
 252 static int hf_p2p_attr_capab_group_group_formation = -1;
 253
 254 static int hf_p2p_attr_device_id = -1;
 255
 256 static int hf_p2p_attr_status = -1;
 257
 258 static int hf_p2p_attr_go_intent = -1;
 259 static int hf_p2p_attr_go_intent_tie_breaker = -1;
 260
 261 /* static int hf_p2p_attr_listen_channel = -1; */
 262 static int hf_p2p_attr_listen_channel_country = -1;
 263 static int hf_p2p_attr_listen_channel_oper_class = -1;
 264 static int hf_p2p_attr_listen_channel_number = -1;
 265
 266 /* static int hf_p2p_attr_operating_channel = -1; */
 267 static int hf_p2p_attr_operating_channel_country = -1;
 268 static int hf_p2p_attr_operating_channel_oper_class = -1;
 269 static int hf_p2p_attr_operating_channel_number = -1;
 270
 271 /* static int hf_p2p_attr_channel_list = -1; */
 272 static int hf_p2p_attr_channel_list_country = -1;
 273 static int hf_p2p_attr_channel_list_oper_class = -1;
 274 static int hf_p2p_attr_channel_list_num_chan = -1;
 275 static int hf_p2p_attr_channel_list_chan = -1;
 276
 277 /* static int hf_p2p_attr_dev_info = -1; */
 278 static int hf_p2p_attr_dev_info_p2p_dev_addr = -1;
 279 static int hf_p2p_attr_dev_info_pri_dev_type = -1;
 280 static int hf_p2p_attr_dev_info_pri_dev_type_category = -1;
 281 static int hf_p2p_attr_dev_info_pri_dev_type_oui = -1;
 282 static int hf_p2p_attr_dev_info_pri_dev_type_subcategory = -1;
 283 static int hf_p2p_attr_dev_info_num_sec = -1;
 284 static int hf_p2p_attr_dev_info_sec_dev_type = -1;
 285 static int hf_p2p_attr_dev_info_dev_name_type = -1;
 286 static int hf_p2p_attr_dev_info_dev_name_len = -1;
 287 static int hf_p2p_attr_dev_info_dev_name = -1;
 288 static int hf_p2p_attr_dev_info_config_methods = -1;
 289 static int hf_p2p_attr_dev_info_config_methods_usba = -1;
 290 static int hf_p2p_attr_dev_info_config_methods_ethernet = -1;
 291 static int hf_p2p_attr_dev_info_config_methods_label = -1;
 292 static int hf_p2p_attr_dev_info_config_methods_display = -1;
 293 static int hf_p2p_attr_dev_info_config_methods_ext_nfc_token = -1;
 294 static int hf_p2p_attr_dev_info_config_methods_int_nfc_token = -1;
 295 static int hf_p2p_attr_dev_info_config_methods_nfc_interface = -1;
 296 static int hf_p2p_attr_dev_info_config_methods_pushbutton = -1;
 297 static int hf_p2p_attr_dev_info_config_methods_keypad = -1;
 298 static int hf_p2p_attr_config_timeout_go = -1;
 299 static int hf_p2p_attr_config_timeout_client = -1;
 300 static int hf_p2p_attr_intended_interface_addr = -1;
 301 static int hf_p2p_attr_extended_listen_timing_period = -1;
 302 static int hf_p2p_attr_extended_listen_timing_interval = -1;
 303 static int hf_p2p_attr_p2p_group_id_dev_addr = -1;
 304 static int hf_p2p_attr_p2p_group_id_ssid = -1;
 305 static int hf_p2p_attr_p2p_group_bssid = -1;
 306
 307 static int hf_p2p_attr_noa_index = -1;
 308 static int hf_p2p_attr_noa_params = -1;
 309 static int hf_p2p_attr_noa_params_opp_ps = -1;
 310 static int hf_p2p_attr_noa_params_ctwindow = -1;
 311 static int hf_p2p_attr_noa_count_type = -1;
 312 static int hf_p2p_attr_noa_duration = -1;
 313 static int hf_p2p_attr_noa_interval = -1;
 314 static int hf_p2p_attr_noa_start_time = -1;
 315
 316 /* static int hf_p2p_attr_gi = -1; */
 317 static int hf_p2p_attr_gi_length = -1;
 318 static int hf_p2p_attr_gi_p2p_dev_addr = -1;
 319 static int hf_p2p_attr_gi_p2p_iface_addr = -1;
 320 static int hf_p2p_attr_gi_dev_capab = -1;
 321 static int hf_p2p_attr_gi_dev_capab_service_discovery = -1;
 322 static int hf_p2p_attr_gi_dev_capab_client_discoverability = -1;
 323 static int hf_p2p_attr_gi_dev_capab_concurrent_operation = -1;
 324 static int hf_p2p_attr_gi_dev_capab_infrastructure_managed = -1;
 325 static int hf_p2p_attr_gi_dev_capab_limit = -1;
 326 /* static int hf_p2p_attr_gi_dev_capab_invitation_procedure = -1; */
 327 static int hf_p2p_attr_gi_config_methods = -1;
 328 /* static int hf_p2p_attr_gi_config_methods_usba = -1; */
 329 /* static int hf_p2p_attr_gi_config_methods_ethernet = -1; */
 330 /* static int hf_p2p_attr_gi_config_methods_label = -1; */
 331 /* static int hf_p2p_attr_gi_config_methods_display = -1; */
 332 /* static int hf_p2p_attr_gi_config_methods_ext_nfc_token = -1; */
 333 /* static int hf_p2p_attr_gi_config_methods_int_nfc_token = -1; */
 334 /* static int hf_p2p_attr_gi_config_methods_nfc_interface = -1; */
 335 /* static int hf_p2p_attr_gi_config_methods_pushbutton = -1; */
 336 /* static int hf_p2p_attr_gi_config_methods_keypad = -1; */
 337 static int hf_p2p_attr_gi_pri_dev_type = -1;
 338 static int hf_p2p_attr_gi_pri_dev_type_category = -1;
 339 static int hf_p2p_attr_gi_pri_dev_type_oui = -1;
 340 static int hf_p2p_attr_gi_pri_dev_type_subcategory = -1;
 341 static int hf_p2p_attr_gi_num_sec_dev_types = -1;
 342 static int hf_p2p_attr_gi_sec_dev_type = -1;
 343 static int hf_p2p_attr_gi_dev_name_type = -1;
 344 static int hf_p2p_attr_gi_dev_name_len = -1;
 345 static int hf_p2p_attr_gi_dev_name = -1;
 346
 347 static int hf_p2p_attr_invitation_flags = -1;
 348 static int hf_p2p_attr_invitation_flags_type = -1;
 349
 350 static int hf_p2p_attr_manageability_bitmap = -1;
 351 static int hf_p2p_attr_manageability_bitmap_mgmt = -1;
 352 static int hf_p2p_attr_manageability_bitmap_cross_connect = -1;
 353 static int hf_p2p_attr_manageability_bitmap_coex_opt = -1;
 354
 355 static int hf_p2p_attr_minor_reason_code = -1;
 356
 357 static int hf_p2p_anqp_service_update_indicator = -1;
 358 static int hf_p2p_anqp_length = -1;
 359 static int hf_p2p_anqp_service_protocol_type = -1;
 360 static int hf_p2p_anqp_service_transaction_id = -1;
 361 static int hf_p2p_anqp_query_data = -1;
 362 static int hf_p2p_anqp_status_code = -1;
 363 static int hf_p2p_anqp_response_data = -1;
 364
 365 static int hf_p2p_action_subtype = -1;
 366 static int hf_p2p_action_dialog_token = -1;
 367 static int hf_p2p_public_action_subtype = -1;
 368 static int hf_p2p_public_action_dialog_token = -1;
 369
 370 static expert_field ei_wifi_p2p_attr_dev_info_dev_name_type = EI_INIT;
 371 static expert_field ei_wifi_p2p_attr_len = EI_INIT;
 372 static expert_field ei_wifi_p2p_anqp_length = EI_INIT;
 373 static expert_field ei_wifi_p2p_anqp_unexpected_padding = EI_INIT;
 374
 375 static void dissect_wifi_p2p_capability(proto_item *tlv_root,
 376                                         proto_item *tlv_item,
 377                                         tvbuff_t *tvb, int offset)
 378 {
 379   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_device, tvb,
 380                       offset + 3, 1, ENC_BIG_ENDIAN);
 381   proto_tree_add_item(tlv_root,
 382                       hf_p2p_attr_capab_device_service_discovery, tvb,
 383                       offset + 3, 1, ENC_BIG_ENDIAN);
 384   proto_tree_add_item(tlv_root,
 385                       hf_p2p_attr_capab_device_client_discoverability,
 386                       tvb, offset + 3, 1, ENC_BIG_ENDIAN);
 387   proto_tree_add_item(tlv_root,
 388                       hf_p2p_attr_capab_device_concurrent_operation,
 389                       tvb, offset + 3, 1, ENC_BIG_ENDIAN);
 390   proto_tree_add_item(tlv_root,
 391                       hf_p2p_attr_capab_device_infrastructure_managed,
 392                       tvb, offset + 3, 1, ENC_BIG_ENDIAN);
 393   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_device_limit, tvb,
 394                       offset + 3, 1, ENC_BIG_ENDIAN);
 395   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_invitation_procedure, tvb,
 396                       offset + 3, 1, ENC_BIG_ENDIAN);
 397
 398   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group,
 399                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 400   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_owner,
 401                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 402   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_persistent,
 403                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 404   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_limit,
 405                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 406   proto_tree_add_item(tlv_root,
 407                       hf_p2p_attr_capab_group_intra_bss_distribution,
 408                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 409   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_cross_connection,
 410                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 411   proto_tree_add_item(tlv_root,
 412                       hf_p2p_attr_capab_group_persistent_reconnect,
 413                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 414   proto_tree_add_item(tlv_root, hf_p2p_attr_capab_group_group_formation,
 415                       tvb, offset + 4, 1, ENC_BIG_ENDIAN);
 416
 417   proto_item_append_text(tlv_item, ": Device 0x%x  Group 0x%x",
 418                          tvb_get_guint8(tvb, offset + 3),
 419                          tvb_get_guint8(tvb, offset + 4));
 420 }
 421
 422 static void dissect_device_id(proto_item *tlv_root, proto_item *tlv_item,
 423                               tvbuff_t *tvb, int offset)
 424 {
 425   guint8 addr[6];
 426   proto_tree_add_item(tlv_root, hf_p2p_attr_device_id, tvb,
 427                       offset + 3, 6, ENC_NA);
 428   tvb_memcpy(tvb, addr, offset + 3, 6);
 429   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 430 }
 431
 432 static void dissect_group_owner_intent(proto_item *tlv_root,
 433                                        proto_item *tlv_item,
 434                                        tvbuff_t *tvb, int offset)
 435 {
 436   proto_tree_add_item(tlv_root, hf_p2p_attr_go_intent, tvb,
 437                       offset + 3, 1, ENC_BIG_ENDIAN);
 438   proto_tree_add_item(tlv_root, hf_p2p_attr_go_intent_tie_breaker, tvb,
 439                       offset + 3, 1, ENC_BIG_ENDIAN);
 440   proto_item_append_text(tlv_item, ": Intent %u  Tie breaker %u",
 441                          tvb_get_guint8(tvb, offset + 3) >> 1,
 442                          tvb_get_guint8(tvb, offset + 3) & 0x01);
 443 }
 444
 445 static void dissect_status(proto_item *tlv_root, proto_item *tlv_item,
 446                            tvbuff_t *tvb, int offset)
 447 {
 448   proto_tree_add_item(tlv_root, hf_p2p_attr_status, tvb,
 449                       offset + 3, 1, ENC_BIG_ENDIAN);
 450   proto_item_append_text(tlv_item, ": %u (%s)",
 451                          tvb_get_guint8(tvb, offset + 3),
 452                          val_to_str(tvb_get_guint8(tvb, offset + 3),
 453                                     p2p_status_codes,
 454                                     "Unknown Status Code (%u)"));
 455 }
 456
 457 static void dissect_listen_channel(proto_item *tlv_root, proto_item *tlv_item,
 458                                    tvbuff_t *tvb, int offset)
 459 {
 460   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_country, tvb,
 461                       offset + 3, 3, ENC_ASCII|ENC_NA);
 462   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_oper_class, tvb,
 463                       offset + 6, 1, ENC_BIG_ENDIAN);
 464   proto_tree_add_item(tlv_root, hf_p2p_attr_listen_channel_number, tvb,
 465                       offset + 7, 1, ENC_BIG_ENDIAN);
 466   proto_item_append_text(tlv_item, ": Operating Class %u  "
 467                          "Channel Number %u",
 468                          tvb_get_guint8(tvb, offset + 6),
 469                          tvb_get_guint8(tvb, offset + 7));
 470 }
 471
 472 static void dissect_operating_channel(proto_item *tlv_root,
 473                                       proto_item *tlv_item,
 474                                       tvbuff_t *tvb, int offset)
 475 {
 476   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_country, tvb,
 477                       offset + 3, 3, ENC_ASCII|ENC_NA);
 478   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_oper_class, tvb,
 479                       offset + 6, 1, ENC_BIG_ENDIAN);
 480   proto_tree_add_item(tlv_root, hf_p2p_attr_operating_channel_number, tvb,
 481                       offset + 7, 1, ENC_BIG_ENDIAN);
 482   proto_item_append_text(tlv_item, ": Operating Class %u  "
 483                          "Channel Number %u",
 484                          tvb_get_guint8(tvb, offset + 6),
 485                          tvb_get_guint8(tvb, offset + 7));
 486 }
 487
 488 static void dissect_channel_list(proto_item *tlv_root, tvbuff_t *tvb,
 489                                  int offset, guint16 slen)
 490 {
 491   int s_offset = offset + 3;
 492   guint8 num_chan;
 493
 494   proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_country, tvb,
 495                       s_offset, 3, ENC_ASCII|ENC_NA);
 496   s_offset += 3;
 497
 498   while (offset + 3 + slen > s_offset) {
 499     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_oper_class, tvb,
 500                         s_offset, 1, ENC_BIG_ENDIAN);
 501     s_offset++;
 502
 503     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_num_chan, tvb,
 504                         s_offset, 1, ENC_BIG_ENDIAN);
 505     num_chan = tvb_get_guint8(tvb, s_offset);
 506     s_offset++;
 507
 508     proto_tree_add_item(tlv_root, hf_p2p_attr_channel_list_chan, tvb,
 509                         s_offset, num_chan, ENC_NA);
 510     s_offset += num_chan;
 511   }
 512 }
 513
 514 static void dissect_wifi_p2p_device_info(packet_info *pinfo,
 515                                          proto_item *tlv_root, tvbuff_t *tvb,
 516                                          int offset, guint16 slen)
 517 {
 518   int s_offset, nlen;
 519   guint8 num_sec;
 520   guint16 attr_type, attr_len;
 521   proto_item *item;
 522
 523   s_offset = offset + 3;
 524
 525   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_p2p_dev_addr, tvb,
 526                       s_offset, 6, ENC_NA);
 527   s_offset += 6;
 528
 529   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_config_methods,
 530                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 531   proto_tree_add_item(tlv_root,
 532                       hf_p2p_attr_dev_info_config_methods_usba,
 533                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 534   proto_tree_add_item(tlv_root,
 535                       hf_p2p_attr_dev_info_config_methods_ethernet,
 536                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 537   proto_tree_add_item(tlv_root,
 538                       hf_p2p_attr_dev_info_config_methods_label,
 539                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 540   proto_tree_add_item(tlv_root,
 541                       hf_p2p_attr_dev_info_config_methods_display,
 542                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 543   proto_tree_add_item(tlv_root,
 544                       hf_p2p_attr_dev_info_config_methods_ext_nfc_token,
 545                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 546   proto_tree_add_item(tlv_root,
 547                       hf_p2p_attr_dev_info_config_methods_int_nfc_token,
 548                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 549   proto_tree_add_item(tlv_root,
 550                       hf_p2p_attr_dev_info_config_methods_nfc_interface,
 551                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 552   proto_tree_add_item(tlv_root,
 553                       hf_p2p_attr_dev_info_config_methods_pushbutton,
 554                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 555   proto_tree_add_item(tlv_root,
 556                       hf_p2p_attr_dev_info_config_methods_keypad,
 557                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 558
 559   s_offset += 2;
 560
 561   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type, tvb,
 562                       s_offset, 8, ENC_NA);
 563   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_category,
 564                       tvb, s_offset, 2, ENC_BIG_ENDIAN);
 565   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_oui,
 566                       tvb, s_offset + 2, 4, ENC_NA);
 567   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_pri_dev_type_subcategory,
 568                       tvb, s_offset + 6, 2, ENC_BIG_ENDIAN);
 569   s_offset += 8;
 570
 571   num_sec = tvb_get_guint8(tvb, s_offset);
 572   proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_num_sec, tvb,
 573                       s_offset, 1, ENC_BIG_ENDIAN);
 574   s_offset++;
 575
 576   while (num_sec > 0) {
 577     proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_sec_dev_type,
 578                         tvb, s_offset, 8, ENC_NA);
 579     s_offset += 8;
 580     num_sec--;
 581   }
 582
 583   item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name_type,
 584                              tvb, s_offset, 2, ENC_BIG_ENDIAN);
 585   attr_type = tvb_get_ntohs(tvb, s_offset);
 586   if (attr_type != 0x1011) {
 587     expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_dev_info_dev_name_type, "Incorrect Device Name attribute type");
 588   }
 589   s_offset += 2;
 590   item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name_len,
 591                              tvb, s_offset, 2, ENC_BIG_ENDIAN);
 592   attr_len = tvb_get_ntohs(tvb, s_offset);
 593   s_offset += 2;
 594   if (attr_len > offset + 3 + slen - s_offset) {
 595     expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid Device Name attribute length");
 596     return;
 597   }
 598   nlen = offset + 3 + slen - s_offset;
 599   if (nlen > 0)
 600     item = proto_tree_add_item(tlv_root, hf_p2p_attr_dev_info_dev_name,
 601                                tvb, s_offset,
 602                                nlen > attr_len ? attr_len : nlen,
 603                                ENC_ASCII|ENC_NA);
 604   if (nlen != attr_len) {
 605     expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid Device Name attribute");
 606   }
 607 }
 608
 609 static void dissect_configuration_timeout(proto_item *tlv_root,
 610                                           proto_item *tlv_item,
 611                                           tvbuff_t *tvb, int offset)
 612 {
 613   proto_tree_add_item(tlv_root, hf_p2p_attr_config_timeout_go, tvb,
 614                       offset + 3, 1, ENC_BIG_ENDIAN);
 615   proto_tree_add_item(tlv_root, hf_p2p_attr_config_timeout_client, tvb,
 616                       offset + 4, 1, ENC_BIG_ENDIAN);
 617   proto_item_append_text(tlv_item, ": GO %u msec, client %u msec",
 618                          tvb_get_guint8(tvb, offset + 3) * 10,
 619                          tvb_get_guint8(tvb, offset + 4) * 10);
 620 }
 621
 622 static void dissect_intended_interface_addr(proto_item *tlv_root,
 623                                             proto_item *tlv_item,
 624                                             tvbuff_t *tvb, int offset)
 625 {
 626   guint8 addr[6];
 627   proto_tree_add_item(tlv_root, hf_p2p_attr_intended_interface_addr, tvb,
 628                       offset + 3, 6, ENC_NA);
 629   tvb_memcpy(tvb, addr, offset + 3, 6);
 630   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 631 }
 632
 633 static void dissect_extended_listen_timing(proto_item *tlv_root,
 634                                            proto_item *tlv_item,
 635                                            tvbuff_t *tvb, int offset)
 636 {
 637   guint16 period, interval;
 638   period = tvb_get_letohs(tvb, offset + 3);
 639   interval = tvb_get_letohs(tvb, offset + 5);
 640   proto_tree_add_uint(tlv_root, hf_p2p_attr_extended_listen_timing_period, tvb,
 641                       offset + 3, 2, period);
 642   proto_tree_add_uint(tlv_root, hf_p2p_attr_extended_listen_timing_interval,
 643                       tvb, offset + 5, 2, interval);
 644   proto_item_append_text(tlv_item, ": Availability Period %u msec, "
 645                          "Availability Interval %u msec", period, interval);
 646 }
 647
 648 static void dissect_wifi_p2p_group_id(proto_item *tlv_root,
 649                                       proto_item *tlv_item, tvbuff_t *tvb,
 650                                       int offset, guint16 slen)
 651 {
 652   int s_offset;
 653   guint8 addr[6];
 654
 655   s_offset = offset + 3;
 656   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_id_dev_addr, tvb,
 657                       s_offset, 6, ENC_NA);
 658   tvb_memcpy(tvb, addr, offset + 3, 6);
 659   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 660   s_offset += 6;
 661   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_id_ssid, tvb,
 662                       s_offset, offset + 3 + slen - s_offset, ENC_ASCII|ENC_NA);
 663 }
 664
 665 static void dissect_wifi_p2p_group_bssid(packet_info *pinfo,
 666                                          proto_item *tlv_root,
 667                                          proto_item *tlv_item, tvbuff_t *tvb,
 668                                          int offset, guint16 slen)
 669 {
 670   int s_offset;
 671   guint8 addr[6];
 672
 673   if (slen != 6) {
 674     expert_add_info_format(pinfo, tlv_item, &ei_wifi_p2p_attr_len, "Invalid ethernet address");
 675     return;
 676   }
 677
 678   s_offset = offset + 3;
 679   proto_tree_add_item(tlv_root, hf_p2p_attr_p2p_group_bssid, tvb,
 680                       s_offset, 6, ENC_NA);
 681   tvb_memcpy(tvb, addr, offset + 3, 6);
 682   proto_item_append_text(tlv_item, ": %s", ether_to_str(addr));
 683 }
 684
 685 static void dissect_notice_of_absence(packet_info *pinfo, proto_item *tlv_root,
 686                                       proto_item *tlv_item,
 687                                       tvbuff_t *tvb, int offset, guint16 slen)
 688 {
 689   int s_offset = offset + 3;
 690
 691   if (slen < 2) {
 692     expert_add_info_format(pinfo, tlv_item, &ei_wifi_p2p_attr_len, "Too short NoA");
 693     return;
 694   }
 695
 696   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_index, tvb, s_offset, 1,
 697                       ENC_BIG_ENDIAN);
 698   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params, tvb, s_offset + 1, 1,
 699                       ENC_BIG_ENDIAN);
 700   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params_opp_ps, tvb,
 701                       s_offset + 1, 1, ENC_BIG_ENDIAN);
 702   proto_tree_add_item(tlv_root, hf_p2p_attr_noa_params_ctwindow, tvb,
 703                       s_offset + 1, 1, ENC_BIG_ENDIAN);
 704
 705   s_offset += 2;
 706   while (offset + 3 + slen >= s_offset + 13) {
 707     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_count_type, tvb, s_offset, 1,
 708                         ENC_BIG_ENDIAN);
 709     s_offset++;
 710     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_duration, tvb, s_offset, 4,
 711                         ENC_LITTLE_ENDIAN);
 712     s_offset += 4;
 713     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_interval, tvb, s_offset, 4,
 714                         ENC_LITTLE_ENDIAN);
 715     s_offset += 4;
 716     proto_tree_add_item(tlv_root, hf_p2p_attr_noa_start_time, tvb, s_offset, 4,
 717                         ENC_LITTLE_ENDIAN);
 718     s_offset += 4;
 719   }
 720 }
 721
 722 static void dissect_wifi_p2p_group_info(packet_info *pinfo,
 723                                         proto_item *tlv_root,
 724                                         proto_item *tlv_item,
 725                                         tvbuff_t *tvb, int offset,
 726                                         guint16 slen)
 727 {
 728   int s_offset = offset + 3;
 729   int next_offset, ci_len, num_sec, left, nlen;
 730   guint16 attr_type, attr_len;
 731   proto_item *item;
 732   proto_tree *tree;
 733
 734   while (offset + 3 + slen > s_offset) {
 735     if (offset + 3 + slen - s_offset < 25) {
 736       expert_add_info_format(pinfo, tlv_item, &ei_wifi_p2p_attr_len, "Too short P2P Client Info Descriptor");
 737       break;
 738     }
 739
 740     ci_len = tvb_get_guint8(tvb, s_offset);
 741     item = proto_tree_add_text(tlv_root, tvb, s_offset, 1 + ci_len,
 742                                "P2P Client Info Descriptor");
 743     tree = proto_item_add_subtree(item, ett_p2p_client_descr);
 744
 745     item = proto_tree_add_item(tree, hf_p2p_attr_gi_length, tvb, s_offset,
 746                                1, ENC_BIG_ENDIAN);
 747     if (ci_len < 24 || s_offset + ci_len > offset + 3 + slen) {
 748       expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid P2P Client Info Descriptor Length");
 749       break;
 750     }
 751     s_offset++;
 752     next_offset = s_offset + ci_len;
 753
 754     proto_tree_add_item(tree, hf_p2p_attr_gi_p2p_dev_addr, tvb, s_offset,
 755                         6, ENC_NA);
 756     proto_item_append_text(tree, ": %s", tvb_ether_to_str(tvb, s_offset));
 757     s_offset += 6;
 758
 759     proto_tree_add_item(tree, hf_p2p_attr_gi_p2p_iface_addr, tvb, s_offset,
 760                         6, ENC_NA);
 761     s_offset += 6;
 762
 763     proto_tree_add_item(tree, hf_p2p_attr_gi_dev_capab, tvb, s_offset, 1,
 764                         ENC_BIG_ENDIAN);
 765     proto_tree_add_item(tree,
 766                         hf_p2p_attr_gi_dev_capab_service_discovery, tvb,
 767                         s_offset, 1, ENC_BIG_ENDIAN);
 768     proto_tree_add_item(tree,
 769                         hf_p2p_attr_gi_dev_capab_client_discoverability,
 770                         tvb, s_offset, 1, ENC_BIG_ENDIAN);
 771     proto_tree_add_item(tree,
 772                         hf_p2p_attr_gi_dev_capab_concurrent_operation,
 773                         tvb, s_offset, 1, ENC_BIG_ENDIAN);
 774     proto_tree_add_item(tree,
 775                         hf_p2p_attr_gi_dev_capab_infrastructure_managed,
 776                         tvb, s_offset, 1, ENC_BIG_ENDIAN);
 777     proto_tree_add_item(tree, hf_p2p_attr_gi_dev_capab_limit, tvb,
 778                         s_offset, 1, ENC_BIG_ENDIAN);
 779     proto_tree_add_item(tree, hf_p2p_attr_capab_invitation_procedure, tvb,
 780                         s_offset, 1, ENC_BIG_ENDIAN);
 781     s_offset++;
 782
 783     proto_tree_add_item(tree, hf_p2p_attr_gi_config_methods, tvb, s_offset,
 784                         2, ENC_BIG_ENDIAN);
 785     s_offset += 2;
 786
 787     proto_tree_add_item(tree, hf_p2p_attr_gi_pri_dev_type, tvb,
 788                         s_offset, 8, ENC_NA);
 789     proto_tree_add_item(tree, hf_p2p_attr_gi_pri_dev_type_category,
 790                         tvb, s_offset, 2, ENC_BIG_ENDIAN);
 791     proto_tree_add_item(tree, hf_p2p_attr_gi_pri_dev_type_oui,
 792                         tvb, s_offset + 2, 4, ENC_NA);
 793     proto_tree_add_item(tree, hf_p2p_attr_gi_pri_dev_type_subcategory,
 794                         tvb, s_offset + 6, 2, ENC_BIG_ENDIAN);
 795     s_offset += 8;
 796
 797     item = proto_tree_add_item(tree, hf_p2p_attr_gi_num_sec_dev_types, tvb,
 798                                s_offset, 1, ENC_BIG_ENDIAN);
 799     num_sec = tvb_get_guint8(tvb, s_offset);
 800     s_offset++;
 801     left = offset + 3 + slen - s_offset;
 802     if (left < 8 * num_sec) {
 803       expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid Secondary Device Type List");
 804       break;
 805     }
 806     while (num_sec > 0) {
 807       proto_tree_add_item(tree, hf_p2p_attr_gi_sec_dev_type,
 808                           tvb, s_offset, 8, ENC_NA);
 809       s_offset += 8;
 810       num_sec--;
 811     }
 812
 813     item = proto_tree_add_item(tree, hf_p2p_attr_gi_dev_name_type,
 814                                tvb, s_offset, 2, ENC_BIG_ENDIAN);
 815     attr_type = tvb_get_ntohs(tvb, s_offset);
 816     if (attr_type != 0x1011) {
 817       expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_dev_info_dev_name_type, "Incorrect Device Name attribute type");
 818     }
 819     s_offset += 2;
 820     item = proto_tree_add_item(tree, hf_p2p_attr_gi_dev_name_len,
 821                                tvb, s_offset, 2, ENC_BIG_ENDIAN);
 822     attr_len = tvb_get_ntohs(tvb, s_offset);
 823     s_offset += 2;
 824     if (attr_len > offset + 3 + slen - s_offset) {
 825       expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid Device Name attribute length");
 826       break;
 827     }
 828     nlen = next_offset - s_offset;
 829     if (nlen > 0)
 830       item = proto_tree_add_item(tree, hf_p2p_attr_gi_dev_name,
 831                                  tvb, s_offset,
 832                                  nlen > attr_len ? attr_len : nlen,
 833                                  ENC_ASCII|ENC_NA);
 834     if (nlen != attr_len) {
 835       expert_add_info_format(pinfo, item, &ei_wifi_p2p_attr_len, "Invalid Device Name attribute");
 836     }
 837
 838     s_offset = next_offset;
 839   }
 840 }
 841
 842 static void dissect_invitation_flags(proto_item *tlv_root,
 843                                      proto_item *tlv_item,
 844                                      tvbuff_t *tvb, int offset)
 845 {
 846   proto_tree_add_item(tlv_root, hf_p2p_attr_invitation_flags, tvb,
 847                       offset + 3, 1, ENC_BIG_ENDIAN);
 848   proto_tree_add_item(tlv_root, hf_p2p_attr_invitation_flags_type, tvb,
 849                       offset + 3, 1, ENC_BIG_ENDIAN);
 850   proto_item_append_text(tlv_item, ": Invitation Flags 0x%x",
 851                          tvb_get_guint8(tvb, offset + 3));
 852 }
 853
 854 static void dissect_manageability(proto_item *tlv_root,
 855                                   proto_item *tlv_item,
 856                                   tvbuff_t *tvb, int offset)
 857 {
 858   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap, tvb,
 859                       offset + 3, 1, ENC_BIG_ENDIAN);
 860   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_mgmt, tvb,
 861                       offset + 3, 1, ENC_BIG_ENDIAN);
 862   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_cross_connect,
 863                       tvb, offset + 3, 1, ENC_BIG_ENDIAN);
 864   proto_tree_add_item(tlv_root, hf_p2p_attr_manageability_bitmap_coex_opt, tvb,
 865                       offset + 3, 1, ENC_BIG_ENDIAN);
 866   proto_item_append_text(tlv_item, ": Bitmap field 0x%x",
 867                          tvb_get_guint8(tvb, offset + 3));
 868 }
 869
 870 static void dissect_minor_reason_code(proto_item *tlv_root,
 871                                       proto_item *tlv_item,
 872                                       tvbuff_t *tvb, int offset)
 873 {
 874   proto_tree_add_item(tlv_root, hf_p2p_attr_minor_reason_code, tvb,
 875                       offset + 3, 1, ENC_BIG_ENDIAN);
 876   proto_item_append_text(tlv_item, ": %u (%s)",
 877                          tvb_get_guint8(tvb, offset + 3),
 878                          val_to_str(tvb_get_guint8(tvb, offset + 3),
 879                                     p2p_minor_reason_codes,
 880                                     "Unknown Minor Reason Code (%u)"));
 881 }
 882
 883 void dissect_wifi_p2p_ie(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb,
 884                          int offset, gint size)
 885 {
 886   guint16 slen = 0;
 887   guint8 stype = 0;
 888   proto_item *tlv_root, *tlv_item;
 889
 890   while (size > 0) {
 891     if (size < 3) {
 892       expert_add_info_format(pinfo, NULL, &ei_wifi_p2p_attr_len, "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, ENC_BIG_ENDIAN);
 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(packet_info *pinfo, proto_tree *tree,
 972                                    tvbuff_t *tvb, int offset)
 973 {
 974   guint8 subtype;
 975   proto_tree_add_item(tree, hf_p2p_public_action_subtype, tvb, offset, 1,
 976                       ENC_BIG_ENDIAN);
 977   subtype = tvb_get_guint8(tvb, offset);
 978   col_append_fstr(pinfo->cinfo, COL_INFO, ", P2P - %s",
 979                   val_to_str(subtype, p2p_public_action_subtypes,
 980                              "Unknown (%u)"));
 981   offset++;
 982   proto_tree_add_item(tree, hf_p2p_public_action_dialog_token, tvb, offset, 1,
 983                       ENC_BIG_ENDIAN);
 984   offset++;
 985   /* Followed by variable length IEs dissected by packet-ieee80211.c */
 986   return offset;
 987 }
 988
 989 int dissect_wifi_p2p_action(proto_tree *tree, tvbuff_t *tvb, int offset)
 990 {
 991   proto_tree_add_item(tree, hf_p2p_action_subtype, tvb, offset, 1, ENC_BIG_ENDIAN);
 992   offset++;
 993   proto_tree_add_item(tree, hf_p2p_action_dialog_token, tvb, offset, 1, ENC_BIG_ENDIAN);
 994   offset++;
 995   /* Followed by variable length IEs dissected by packet-ieee80211.c */
 996   return offset;
 997 }
 998
 999 void dissect_wifi_p2p_anqp(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb,
1000                            int offset, gboolean request)
1001 {
1002   proto_item *item;
1003
1004   item = proto_tree_add_item(tree, hf_p2p_anqp_service_update_indicator, tvb,
1005                              offset, 2, ENC_LITTLE_ENDIAN);
1006   offset += 2;
1007
1008   while (tvb_length_remaining(tvb, offset) >= (request ? 4 : 5)) {
1009     guint16 len;
1010     proto_tree *tlv;
1011     guint8 type, id, sd_proto;
1012
1013     len = tvb_get_letohs(tvb, offset);
1014     if (len < 2) {
1015       expert_add_info_format(pinfo, item, &ei_wifi_p2p_anqp_length, "Too short Service TLV field");
1016       return;
1017     }
1018     if (len > tvb_length_remaining(tvb, offset + 2)) {
1019       expert_add_info_format(pinfo, item, &ei_wifi_p2p_anqp_length, "Too short frame for Service TLV field");
1020       return;
1021     }
1022
1023     type = tvb_get_guint8(tvb, offset + 2);
1024     id = tvb_get_guint8(tvb, offset + 3);
1025     item = proto_tree_add_text(tree, tvb, offset, 2 + len,
1026                                "Service TLV (Transaction ID: %u  Type: %s)",
1027                                id, val_to_str(type, p2p_service_protocol_types,
1028                                               "Unknown (%u)"));
1029     tlv = proto_item_add_subtree(item, ett_p2p_service_tlv);
1030
1031     proto_tree_add_item(tlv, hf_p2p_anqp_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
1032     offset += 2;
1033     sd_proto = tvb_get_guint8(tvb, offset);
1034     proto_tree_add_item(tlv, hf_p2p_anqp_service_protocol_type, tvb,
1035                         offset, 1, ENC_BIG_ENDIAN);
1036     proto_tree_add_item(tlv, hf_p2p_anqp_service_transaction_id, tvb,
1037                         offset + 1, 1, ENC_BIG_ENDIAN);
1038     if (request) {
1039       proto_tree_add_item(tlv, hf_p2p_anqp_query_data, tvb,
1040                           offset + 2, len - 2, ENC_NA);
1041     } else {
1042       proto_tree_add_item(tlv, hf_p2p_anqp_status_code, tvb,
1043                           offset + 2, 1, ENC_BIG_ENDIAN);
1044       proto_tree_add_item(tlv, hf_p2p_anqp_response_data, tvb,
1045                           offset + 3, len - 3, ENC_NA);
1046       if (sd_proto == 4)
1047         dissect_wifi_display_ie(pinfo, tlv, tvb, offset + 3, len - 3);
1048     }
1049     offset += len;
1050   }
1051
1052   if (tvb_length_remaining(tvb, offset) > 0) {
1053     expert_add_info(pinfo, item, &ei_wifi_p2p_anqp_unexpected_padding);
1054   }
1055 }
1056
1057 void
1058 proto_register_p2p(void)
1059 {
1060   static hf_register_info hf[] = {
1061     { &hf_p2p_attr_type,
1062       { "Attribute Type", "wifi_p2p.type",
1063         FT_UINT8, BASE_DEC, VALS(p2p_attr_types), 0x0, NULL, HFILL }},
1064     { &hf_p2p_attr_len,
1065       { "Attribute Length", "wifi_p2p.length",
1066         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1067
1068 #if 0
1069     { &hf_p2p_attr_capab,
1070       { "P2P Capability", "wifi_p2p.p2p_capability",
1071         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1072 #endif
1073     { &hf_p2p_attr_capab_device,
1074       { "Device Capability Bitmap",
1075         "wifi_p2p.p2p_capability.device_capability",
1076         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1077     { &hf_p2p_attr_capab_device_service_discovery,
1078       { "Service Discovery",
1079         "wifi_p2p.p2p_capability.device_capability.service_discovery",
1080         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_SERVICE_DISCOVERY, NULL, HFILL
1081       }},
1082     { &hf_p2p_attr_capab_device_client_discoverability,
1083       { "P2P Client Discoverability",
1084         "wifi_p2p.p2p_capability.device_capability.client_discoverability",
1085         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY,
1086         NULL, HFILL
1087       }},
1088     { &hf_p2p_attr_capab_device_concurrent_operation,
1089       { "Concurrent Operation",
1090         "wifi_p2p.p2p_capability.device_capability.concurrent_operation",
1091         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_CONCURRENT_OPERATION, NULL,
1092         HFILL
1093       }},
1094     { &hf_p2p_attr_capab_device_infrastructure_managed,
1095       { "P2P Infrastructure Managed",
1096         "wifi_p2p.p2p_capability.device_capability.infrastructure_managed",
1097         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED,
1098         NULL, HFILL
1099       }},
1100     { &hf_p2p_attr_capab_device_limit,
1101       { "P2P Device Limit",
1102         "wifi_p2p.p2p_capability.device_capability.device_limit",
1103         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_DEVICE_LIMIT, NULL, HFILL
1104       }},
1105     { &hf_p2p_attr_capab_invitation_procedure,
1106       { "P2P Invitation Procedure",
1107         "wifi_p2p.p2p_capability.device_capability.invitation_procedure",
1108         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE, NULL,
1109         HFILL
1110       }},
1111     { &hf_p2p_attr_capab_group,
1112       { "Group Capability Bitmap", "wifi_p2p.p2p_capability.group_capability",
1113         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1114     { &hf_p2p_attr_capab_group_owner,
1115       { "P2P Group Owner",
1116         "wifi_p2p.p2p_capability.group_capability.group_owner",
1117         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_P2P_GROUP_OWNER, NULL, HFILL
1118       }},
1119     { &hf_p2p_attr_capab_group_persistent,
1120       { "Persistent P2P Group",
1121         "wifi_p2p.p2p_capability.group_capability.persistent_group",
1122         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_PERSISTENT_P2P_GROUP, NULL,
1123         HFILL }},
1124     { &hf_p2p_attr_capab_group_limit,
1125       { "P2P Group Limit",
1126         "wifi_p2p.p2p_capability.group_capability.group_limit",
1127         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_P2P_GROUP_LIMIT, NULL, HFILL
1128       }},
1129     { &hf_p2p_attr_capab_group_intra_bss_distribution,
1130       { "Intra-BSS Distribution",
1131         "wifi_p2p.p2p_capability.group_capability.intra_bss_distribution",
1132         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_INTRA_BSS_DISTRIBUTION, NULL,
1133         HFILL }},
1134     { &hf_p2p_attr_capab_group_cross_connection,
1135       { "Cross Connection",
1136         "wifi_p2p.p2p_capability.group_capability.cross_connection",
1137         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_CROSS_CONNECTION, NULL, HFILL
1138       }},
1139     { &hf_p2p_attr_capab_group_persistent_reconnect,
1140       { "Persistent Reconnect",
1141         "wifi_p2p.p2p_capability.group_capability.persistent_reconnect",
1142         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_PERSISTENT_RECONNECT, NULL,
1143         HFILL }},
1144     { &hf_p2p_attr_capab_group_group_formation,
1145       { "Group Formation",
1146         "wifi_p2p.p2p_capability.group_capability.group_formation",
1147         FT_UINT8, BASE_HEX, NULL, P2P_GROUP_CAPAB_GROUP_FORMATION, NULL, HFILL
1148       }},
1149
1150     { &hf_p2p_attr_device_id,
1151       { "Device ID", "wifi_p2p.device_id",
1152         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1153
1154     { &hf_p2p_attr_status,
1155       { "Status Code", "wifi_p2p.status",
1156         FT_UINT8, BASE_DEC, VALS(p2p_status_codes), 0x0, NULL, HFILL }},
1157
1158     { &hf_p2p_attr_go_intent,
1159       { "Group Owner Intent", "wifi_p2p.go_intent",
1160         FT_UINT8, BASE_DEC, NULL, 0x1e, NULL, HFILL }},
1161     { &hf_p2p_attr_go_intent_tie_breaker,
1162       { "Group Owner Intent Tie Breaker", "wifi_p2p.go_intent_tie_breaker",
1163         FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }},
1164
1165 #if 0
1166     { &hf_p2p_attr_listen_channel,
1167       { "Listen Channel", "wifi_p2p.listen_channel",
1168         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1169 #endif
1170     { &hf_p2p_attr_listen_channel_country,
1171       { "Country String", "wifi_p2p.listen_channel.country_string",
1172         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1173     { &hf_p2p_attr_listen_channel_oper_class,
1174       { "Operating Class", "wifi_p2p.listen_channel.operating_class",
1175         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1176     { &hf_p2p_attr_listen_channel_number,
1177       { "Channel Number", "wifi_p2p.listen_channel.channel_number",
1178         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1179
1180 #if 0
1181     { &hf_p2p_attr_operating_channel,
1182       { "Operating Channel", "wifi_p2p.operating_channel",
1183         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1184 #endif
1185     { &hf_p2p_attr_operating_channel_country,
1186       { "Country String", "wifi_p2p.operating_channel.country_string",
1187         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1188     { &hf_p2p_attr_operating_channel_oper_class,
1189       { "Operating Class", "wifi_p2p.channel.operating_class",
1190         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1191     { &hf_p2p_attr_operating_channel_number,
1192       { "Channel Number", "wifi_p2p.channel.channel_number",
1193         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1194
1195 #if 0
1196     { &hf_p2p_attr_channel_list,
1197       { "Channel List", "wifi_p2p.channel_list",
1198         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1199 #endif
1200     { &hf_p2p_attr_channel_list_country,
1201       { "Country String", "wifi_p2p.channel_list.country_string",
1202         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1203     { &hf_p2p_attr_channel_list_oper_class,
1204       { "Operating Class", "wifi_p2p.channel_list.operating_class",
1205         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1206     { &hf_p2p_attr_channel_list_num_chan,
1207       { "Number of Channels", "wifi_p2p.channel_list.num_chan",
1208         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1209     { &hf_p2p_attr_channel_list_chan,
1210       { "Channel List", "wifi_p2p.channel_list.channel_list",
1211         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1212 #if 0
1213     { &hf_p2p_attr_dev_info,
1214       { "Device Info", "wifi_p2p.dev_info",
1215         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1216 #endif
1217     { &hf_p2p_attr_dev_info_p2p_dev_addr,
1218       { "P2P Device address", "wifi_p2p.dev_info.p2p_dev_addr",
1219         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1220     { &hf_p2p_attr_dev_info_pri_dev_type,
1221       { "Primary Device Type", "wifi_p2p.dev_info.pri_dev_type",
1222         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1223     { &hf_p2p_attr_dev_info_pri_dev_type_category,
1224       { "Primary Device Type: Category",
1225         "wifi_p2p.dev_info.pri_dev_type.category",
1226         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1227     { &hf_p2p_attr_dev_info_pri_dev_type_oui,
1228       { "Primary Device Type: OUI", "wifi_p2p.dev_info.pri_dev_type.oui",
1229         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1230     { &hf_p2p_attr_dev_info_pri_dev_type_subcategory,
1231       { "Primary Device Type: Subcategory",
1232         "wifi_p2p.dev_info.pri_dev_type.subcategory",
1233         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1234     { &hf_p2p_attr_dev_info_num_sec,
1235       { "Number of Secondary Device Types", "wifi_p2p.dev_info.num_sec",
1236         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1237     { &hf_p2p_attr_dev_info_sec_dev_type,
1238       { "Secondary Device Type", "wifi_p2p.dev_info.sec_dev_type",
1239         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1240     { &hf_p2p_attr_dev_info_dev_name_type,
1241       { "Device Name attribute type", "wifi_p2p.dev_info.dev_name_type",
1242         FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1243     { &hf_p2p_attr_dev_info_dev_name_len,
1244       { "Device Name attribute length", "wifi_p2p.dev_info.dev_name",
1245         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1246     { &hf_p2p_attr_dev_info_dev_name,
1247       { "Device Name", "wifi_p2p.dev_info.dev_name",
1248         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1249     { &hf_p2p_attr_dev_info_config_methods,
1250       { "Config Methods", "wifi_p2p.dev_info.config_methods",
1251         FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
1252     { &hf_p2p_attr_dev_info_config_methods_usba,
1253       { "USBA (Flash Drive)", "wifi_p2p.dev_info.config_methods.usba",
1254         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_USBA, NULL, HFILL }},
1255     { &hf_p2p_attr_dev_info_config_methods_ethernet,
1256       { "Ethernet", "wifi_p2p.dev_info.config_methods.ethernet",
1257         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_ETHERNET, NULL, HFILL }},
1258     { &hf_p2p_attr_dev_info_config_methods_label,
1259       { "Label", "wifi_p2p.dev_info.config_methods.label",
1260         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_LABEL, NULL, HFILL }},
1261     { &hf_p2p_attr_dev_info_config_methods_display,
1262       { "Display", "wifi_p2p.dev_info.config_methods.display",
1263         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_DISPLAY, NULL, HFILL }},
1264     { &hf_p2p_attr_dev_info_config_methods_ext_nfc_token,
1265       { "External NFC Token", "wifi_p2p.dev_info.config_methods.ext_nfc_token",
1266         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_EXT_NFC_TOKEN, NULL, HFILL }},
1267     { &hf_p2p_attr_dev_info_config_methods_int_nfc_token,
1268       { "Integrated NFC Token",
1269         "wifi_p2p.dev_info.config_methods.int_nfc_token",
1270         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_INT_NFC_TOKEN, NULL, HFILL }},
1271     { &hf_p2p_attr_dev_info_config_methods_nfc_interface,
1272       { "NFC Interface", "wifi_p2p.dev_info.config_methods.nfc_interface",
1273         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_NFC_INTERFACE, NULL, HFILL }},
1274     { &hf_p2p_attr_dev_info_config_methods_pushbutton,
1275       { "PushButton", "wifi_p2p.dev_info.config_methods.pushbutton",
1276         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_PUSHBUTTON, NULL, HFILL }},
1277     { &hf_p2p_attr_dev_info_config_methods_keypad,
1278       { "Keypad", "wifi_p2p.dev_info.config_methods.keypad",
1279         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_KEYPAD, NULL, HFILL }},
1280     { &hf_p2p_attr_config_timeout_go,
1281       { "GO Configuration Timeout", "wifi_p2p.config_timeout.go",
1282         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1283     { &hf_p2p_attr_config_timeout_client,
1284       { "Client Configuration Timeout", "wifi_p2p.config_timeout.client",
1285         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1286     { &hf_p2p_attr_intended_interface_addr,
1287       { "P2P Interface Address", "wifi_p2p.intended_interface_addr",
1288         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1289     { &hf_p2p_attr_extended_listen_timing_period,
1290       { "Availability Period", "wifi_p2p.extended_listen_timing.period",
1291         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1292     { &hf_p2p_attr_extended_listen_timing_interval,
1293       { "Availability Interval", "wifi_p2p.extended_listen_timing.interval",
1294         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1295     { &hf_p2p_attr_p2p_group_id_dev_addr,
1296       { "P2P Device address", "wifi_p2p.p2p_group_id.p2p_dev_addr",
1297         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1298     { &hf_p2p_attr_p2p_group_id_ssid,
1299       { "SSID", "wifi_p2p.p2p_group_id.ssid",
1300         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1301     { &hf_p2p_attr_p2p_group_bssid,
1302       { "BSSID", "wifi_p2p.p2p_group_bssid",
1303         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1304
1305     { &hf_p2p_attr_noa_index,
1306       { "Index", "wifi_p2p.noa.index",
1307         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1308     { &hf_p2p_attr_noa_params,
1309       { "CTWindow and OppPS Parameters", "wifi_p2p.noa.params",
1310         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1311     { &hf_p2p_attr_noa_params_opp_ps,
1312       { "OppPS", "wifi_p2p.noa.params.opp_ps",
1313         FT_UINT8, BASE_DEC, NULL, 0x80, NULL, HFILL }},
1314     { &hf_p2p_attr_noa_params_ctwindow,
1315       { "CTWindow", "wifi_p2p.noa.params.ctwindow",
1316         FT_UINT8, BASE_DEC, NULL, 0x7f, NULL, HFILL }},
1317     { &hf_p2p_attr_noa_count_type,
1318       { "Count/Type", "wifi_p2p.noa.count_type",
1319         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1320     { &hf_p2p_attr_noa_duration,
1321       { "Duration", "wifi_p2p.noa.duration",
1322         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1323     { &hf_p2p_attr_noa_interval,
1324       { "Interval", "wifi_p2p.noa.interval",
1325         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1326     { &hf_p2p_attr_noa_start_time,
1327       { "Start Time", "wifi_p2p.noa.start_time",
1328         FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1329
1330 #if 0
1331     { &hf_p2p_attr_gi,
1332       { "Device Info", "wifi_p2p.group_info",
1333         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1334 #endif
1335     { &hf_p2p_attr_gi_length,
1336       { "P2P Client Info Descriptor Length", "wifi_p2p.group_info.length",
1337         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1338     { &hf_p2p_attr_gi_p2p_dev_addr,
1339       { "P2P Device address", "wifi_p2p.group_info.p2p_dev_addr",
1340         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1341     { &hf_p2p_attr_gi_p2p_iface_addr,
1342       { "P2P Interface address", "wifi_p2p.group_info.p2p_interface_addr",
1343         FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1344     { &hf_p2p_attr_gi_dev_capab,
1345       { "Device Capability Bitmap", "wifi_p2p.group_info.device_capability",
1346         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1347     { &hf_p2p_attr_gi_dev_capab_service_discovery,
1348       { "Service Discovery",
1349         "wifi_p2p.group_info.device_capability.service_discovery",
1350         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_SERVICE_DISCOVERY, NULL, HFILL
1351       }},
1352     { &hf_p2p_attr_gi_dev_capab_client_discoverability,
1353       { "P2P Client Discoverability",
1354         "wifi_p2p.group_info.device_capability.client_discoverability",
1355         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_CLIENT_DISCOVERABILITY,
1356         NULL, HFILL
1357       }},
1358     { &hf_p2p_attr_gi_dev_capab_concurrent_operation,
1359       { "Concurrent Operation",
1360         "wifi_p2p.group_info.device_capability.concurrent_operation",
1361         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_CONCURRENT_OPERATION, NULL,
1362         HFILL
1363       }},
1364     { &hf_p2p_attr_gi_dev_capab_infrastructure_managed,
1365       { "P2P Infrastructure Managed",
1366         "wifi_p2p.group_info.device_capability.infrastructure_managed",
1367         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INFRASTRUCTURE_MANAGED,
1368         NULL, HFILL
1369       }},
1370     { &hf_p2p_attr_gi_dev_capab_limit,
1371       { "P2P Device Limit",
1372         "wifi_p2p.group_info.device_capability.device_limit",
1373         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_DEVICE_LIMIT, NULL, HFILL }},
1374 #if 0
1375     { &hf_p2p_attr_gi_dev_capab_invitation_procedure,
1376       { "P2P Invitation Procedure",
1377         "wifi_p2p.group_info.device_capability.invitation_procedure",
1378         FT_UINT8, BASE_HEX, NULL, P2P_DEV_CAPAB_P2P_INVITATION_PROCEDURE, NULL,
1379         HFILL }},
1380 #endif
1381     { &hf_p2p_attr_gi_pri_dev_type,
1382       { "Primary Device Type", "wifi_p2p.group_info.pri_dev_type",
1383         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1384     { &hf_p2p_attr_gi_pri_dev_type_category,
1385       { "Primary Device Type: Category",
1386         "wifi_p2p.group_info.pri_dev_type.category",
1387         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1388     { &hf_p2p_attr_gi_pri_dev_type_oui,
1389       { "Primary Device Type: OUI", "wifi_p2p.group_info.pri_dev_type.oui",
1390         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1391     { &hf_p2p_attr_gi_pri_dev_type_subcategory,
1392       { "Primary Device Type: Subcategory",
1393         "wifi_p2p.group_info.pri_dev_type.subcategory",
1394         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1395     { &hf_p2p_attr_gi_num_sec_dev_types,
1396       { "Number of Secondary Device Types", "wifi_p2p.group_info.num_sec",
1397         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1398     { &hf_p2p_attr_gi_sec_dev_type,
1399       { "Secondary Device Type", "wifi_p2p.group_info.sec_dev_type",
1400         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1401     { &hf_p2p_attr_gi_dev_name_type,
1402       { "Device Name attribute type", "wifi_p2p.group_info.dev_name_type",
1403         FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1404     { &hf_p2p_attr_gi_dev_name_len,
1405       { "Device Name attribute length", "wifi_p2p.group_info.dev_name",
1406         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1407     { &hf_p2p_attr_gi_dev_name,
1408       { "Device Name", "wifi_p2p.group_info.dev_name",
1409         FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1410     { &hf_p2p_attr_gi_config_methods,
1411       { "Config Methods", "wifi_p2p.group_info.config_methods",
1412         FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
1413 #if 0
1414     { &hf_p2p_attr_gi_config_methods_usba,
1415       { "USBA (Flash Drive)", "wifi_p2p.group_info.config_methods.usba",
1416         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_USBA, NULL, HFILL }},
1417 #endif
1418 #if 0
1419     { &hf_p2p_attr_gi_config_methods_ethernet,
1420       { "Ethernet", "wifi_p2p.group_info.config_methods.ethernet",
1421         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_ETHERNET, NULL, HFILL }},
1422 #endif
1423 #if 0
1424     { &hf_p2p_attr_gi_config_methods_label,
1425       { "Label", "wifi_p2p.group_info.config_methods.label",
1426         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_LABEL, NULL, HFILL }},
1427 #endif
1428 #if 0
1429     { &hf_p2p_attr_gi_config_methods_display,
1430       { "Display", "wifi_p2p.group_info.config_methods.display",
1431         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_DISPLAY, NULL, HFILL }},
1432 #endif
1433 #if 0
1434     { &hf_p2p_attr_gi_config_methods_ext_nfc_token,
1435       { "External NFC Token",
1436         "wifi_p2p.group_info.config_methods.ext_nfc_token",
1437         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_EXT_NFC_TOKEN, NULL, HFILL }},
1438 #endif
1439 #if 0
1440     { &hf_p2p_attr_gi_config_methods_int_nfc_token,
1441       { "Integrated NFC Token",
1442         "wifi_p2p.group_info.config_methods.int_nfc_token",
1443         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_INT_NFC_TOKEN, NULL, HFILL }},
1444 #endif
1445 #if 0
1446     { &hf_p2p_attr_gi_config_methods_nfc_interface,
1447       { "NFC Interface", "wifi_p2p.group_info.config_methods.nfc_interface",
1448         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_NFC_INTERFACE, NULL, HFILL }},
1449 #endif
1450 #if 0
1451     { &hf_p2p_attr_gi_config_methods_pushbutton,
1452       { "PushButton", "wifi_p2p.group_info.config_methods.pushbutton",
1453         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_PUSHBUTTON, NULL, HFILL }},
1454 #endif
1455 #if 0
1456     { &hf_p2p_attr_gi_config_methods_keypad,
1457       { "Keypad", "wifi_p2p.group_info.config_methods.keypad",
1458         FT_UINT16, BASE_HEX, NULL, WPS_CONF_METH_KEYPAD, NULL, HFILL }},
1459 #endif
1460
1461     { &hf_p2p_attr_invitation_flags,
1462       { "Invitation Flags", "wifi_p2p.invitation_flags",
1463         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1464     { &hf_p2p_attr_invitation_flags_type,
1465       { "Invitation Type", "wifi_p2p.invitation_flags.type",
1466         FT_UINT8, BASE_HEX, VALS(invitation_types), 0x01, NULL, HFILL }},
1467
1468     { &hf_p2p_attr_manageability_bitmap,
1469       { "Manageability Bitmap field", "wifi_p2p.manageability.bitmap",
1470         FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
1471     { &hf_p2p_attr_manageability_bitmap_mgmt,
1472       { "P2P Device Management", "wifi_p2p.manageability.bitmap.dev_mgmt",
1473         FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL }},
1474     { &hf_p2p_attr_manageability_bitmap_cross_connect,
1475       { "Cross Connection Permitted",
1476         "wifi_p2p.manageability.bitmap.cross_connect",
1477         FT_UINT8, BASE_HEX, NULL, 0x02, NULL, HFILL }},
1478     { &hf_p2p_attr_manageability_bitmap_coex_opt,
1479       { "Coexistence Optional", "wifi_p2p.manageability.bitmap.coex_opt",
1480         FT_UINT8, BASE_HEX, NULL, 0x04, NULL, HFILL }},
1481
1482     { &hf_p2p_attr_minor_reason_code,
1483       { "Minor Reason Code", "wifi_p2p.minor_reason_code",
1484         FT_UINT8, BASE_DEC, VALS(p2p_minor_reason_codes), 0x0, NULL, HFILL }},
1485
1486     { &hf_p2p_anqp_service_update_indicator,
1487       { "Service Update Indicator", "wifi_p2p.anqp.service_update_indicator",
1488         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1489     { &hf_p2p_anqp_length,
1490       { "Length", "wifi_p2p.anqp.length",
1491         FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1492     { &hf_p2p_anqp_service_protocol_type,
1493       { "Service Protocol Type", "wifi_p2p.anqp.service_protocol_type",
1494         FT_UINT8, BASE_DEC, VALS(p2p_service_protocol_types), 0x0, NULL,
1495         HFILL }},
1496     { &hf_p2p_anqp_service_transaction_id,
1497       { "Service Transaction ID", "wifi_p2p.anqp.service_transaction_id",
1498         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1499     { &hf_p2p_anqp_query_data,
1500       { "Query Data", "wifi_p2p.anqp.query_data",
1501         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1502     { &hf_p2p_anqp_status_code,
1503       { "Status Code", "wifi_p2p.anqp.status_code",
1504         FT_UINT8, BASE_DEC, VALS(p2p_sd_status_codes), 0x0,
1505         "Service Query Status Code", HFILL }},
1506     { &hf_p2p_anqp_response_data,
1507       { "Response Data", "wifi_p2p.anqp.response_data",
1508         FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
1509
1510     { &hf_p2p_action_subtype,
1511       { "P2P Action Subtype", "wifi_p2p.action.subtype",
1512         FT_UINT8, BASE_DEC, VALS(p2p_action_subtypes), 0x0, NULL, HFILL }},
1513     { &hf_p2p_action_dialog_token,
1514       { "P2P Action Dialog Token", "wifi_p2p.action.dialog_token",
1515         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
1516     { &hf_p2p_public_action_subtype,
1517       { "P2P Public Action Subtype", "wifi_p2p.public_action.subtype",
1518         FT_UINT8, BASE_DEC, VALS(p2p_public_action_subtypes), 0x0, NULL, HFILL
1519       }},
1520     { &hf_p2p_public_action_dialog_token,
1521       { "P2P Public Action Dialog Token",
1522         "wifi_p2p.public_action.dialog_token",
1523         FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}
1524   };
1525   static gint *ett[] = {
1526     &ett_p2p_tlv,
1527     &ett_p2p_service_tlv,
1528     &ett_p2p_client_descr
1529   };
1530
1531   static ei_register_info ei[] = {
1532       { &ei_wifi_p2p_attr_dev_info_dev_name_type, { "wifi_p2p.dev_info.dev_name_type.invalid", PI_MALFORMED, PI_ERROR, "Incorrect Device Name attribute type", EXPFILL }},
1533       { &ei_wifi_p2p_attr_len, { "wifi_p2p.length.invalid", PI_MALFORMED, PI_ERROR, "Invalid attribute length", EXPFILL }},
1534       { &ei_wifi_p2p_anqp_length, { "wifi_p2p.anqp.length.invalid", PI_MALFORMED, PI_ERROR, "Invalid anqp_length", EXPFILL }},
1535       { &ei_wifi_p2p_anqp_unexpected_padding, { "wifi_p2p.anqp.unexpected_padding", PI_MALFORMED, PI_ERROR, "Unexpected padding in the end of P2P ANQP", EXPFILL }},
1536   };
1537
1538   expert_module_t* expert_p2p;
1539
1540   proto_p2p = proto_register_protocol("Wi-Fi Peer-to-Peer", "Wi-Fi P2P", "wifi_p2p");
1541   proto_register_field_array(proto_p2p, hf, array_length(hf));
1542   proto_register_subtree_array(ett, array_length(ett));
1543
1544   expert_p2p = expert_register_protocol(proto_p2p);
1545   expert_register_field_array(expert_p2p, ei, array_length(ei));
1546 }
1547
1548 /*
1549  * Editor modelines
1550  *
1551  * Local Variables:
1552  * c-basic-offset: 2
1553  * tab-width: 8
1554  * indent-tabs-mode: nil
1555  * End:
1556  *
1557  * ex: set shiftwidth=2 tabstop=8 expandtab:
1558  * :indentSize=2:tabSize=8:noTabs=true:
1559  */