epan/dissectors/packet-usb-com.c

   1 /* packet-usb-com.c
   2  * Routines for USB Communications and CDC Control dissection
   3  * Copyright 2013, Pascal Quantin <pascal@wireshark.org>
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12 #include "config.h"
  13
  14 #include <epan/packet.h>
  15 #include <epan/expert.h>
  16 #include <epan/follow.h>
  17 #include <epan/conversation.h>
  18 #include <epan/tfs.h>
  19 #include <epan/unit_strings.h>
  20 #include "packet-usb.h"
  21
  22 static int cdc_data_follow_tap;
  23 static int proto_usb;
  24
  25 /* protocols and header fields */
  26 static int proto_usb_com;
  27 static int hf_usb_com_descriptor_subtype;
  28 static int hf_usb_com_descriptor_cdc;
  29 static int hf_usb_com_descriptor_payload;
  30 static int hf_usb_com_control_subclass;
  31 static int hf_usb_com_control_request_code;
  32 static int hf_usb_com_control_value;
  33 static int hf_usb_com_control_index;
  34 static int hf_usb_com_control_length;
  35 static int hf_usb_com_control_response_code;
  36 static int hf_usb_com_control_payload;
  37 static int hf_usb_com_get_ntb_params_length;
  38 static int hf_usb_com_get_ntb_params_ntb_formats_supported;
  39 static int hf_usb_com_get_ntb_params_ntb_formats_supported_16bit;
  40 static int hf_usb_com_get_ntb_params_ntb_formats_supported_32bit;
  41 static int hf_usb_com_get_ntb_params_ntb_in_max_size;
  42 static int hf_usb_com_get_ntb_params_ndp_in_divisor;
  43 static int hf_usb_com_get_ntb_params_ndp_in_payload_remainder;
  44 static int hf_usb_com_get_ntb_params_ndp_in_alignment;
  45 static int hf_usb_com_get_ntb_params_reserved;
  46 static int hf_usb_com_get_ntb_params_ntb_out_max_size;
  47 static int hf_usb_com_get_ntb_params_ndp_out_divisor;
  48 static int hf_usb_com_get_ntb_params_ndp_out_payload_remainder;
  49 static int hf_usb_com_get_ntb_params_ndp_out_alignment;
  50 static int hf_usb_com_get_ntb_params_ntb_out_max_datagrams;
  51 static int hf_usb_com_get_net_address_eui48;
  52 static int hf_usb_com_set_net_address_eui48;
  53 static int hf_usb_com_get_ntb_format_ntb_format;
  54 static int hf_usb_com_set_ntb_format_ntb_format;
  55 static int hf_usb_com_get_ntb_input_size_ntb_in_max_size;
  56 static int hf_usb_com_get_ntb_input_size_ntb_in_max_datagrams;
  57 static int hf_usb_com_get_ntb_input_size_reserved;
  58 static int hf_usb_com_set_ntb_input_size_ntb_in_max_size;
  59 static int hf_usb_com_set_ntb_input_size_ntb_in_max_datagrams;
  60 static int hf_usb_com_set_ntb_input_size_reserved;
  61 static int hf_usb_com_get_max_datagram_size_size;
  62 static int hf_usb_com_set_max_datagram_size_size;
  63 static int hf_usb_com_get_crc_mode_crc_mode;
  64 static int hf_usb_com_set_crc_mode_crc_mode;
  65 static int hf_usb_com_capabilities;
  66 static int hf_usb_com_descriptor_acm_capabilities_reserved;
  67 static int hf_usb_com_descriptor_acm_capabilities_network_connection;
  68 static int hf_usb_com_descriptor_acm_capabilities_send_break;
  69 static int hf_usb_com_descriptor_acm_capabilities_line_and_state;
  70 static int hf_usb_com_descriptor_acm_capabilities_comm_features;
  71 static int hf_usb_com_descriptor_control_interface;
  72 static int hf_usb_com_descriptor_subordinate_interface;
  73 static int hf_usb_com_descriptor_cm_capabilities_reserved;
  74 static int hf_usb_com_descriptor_cm_capabilities_call_management_over_data_class_interface;
  75 static int hf_usb_com_descriptor_cm_capabilities_call_management;
  76 static int hf_usb_com_descriptor_cm_data_interface;
  77 static int hf_usb_com_descriptor_ecm_mac_address;
  78 static int hf_usb_com_descriptor_ecm_eth_stats;
  79 static int hf_usb_com_descriptor_ecm_eth_stats_reserved;
  80 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_late_collisions;
  81 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_times_crs_lost;
  82 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_heartbeat_failure;
  83 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_underrun;
  84 static int hf_usb_com_descriptor_ecm_eth_stats_rcv_overrun;
  85 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_max_collisions;
  86 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_deferred;
  87 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_more_collisions;
  88 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_one_collision;
  89 static int hf_usb_com_descriptor_ecm_eth_stats_rcv_error_alignment;
  90 static int hf_usb_com_descriptor_ecm_eth_stats_transmit_queue_length;
  91 static int hf_usb_com_descriptor_ecm_eth_stats_rcv_crc_error;
  92 static int hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_rcv;
  93 static int hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_rcv;
  94 static int hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_rcv;
  95 static int hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_rcv;
  96 static int hf_usb_com_descriptor_ecm_eth_stats_directed_frames_rcv;
  97 static int hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_rcv;
  98 static int hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_xmit;
  99 static int hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_xmit;
 100 static int hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_xmit;
 101 static int hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_xmit;
 102 static int hf_usb_com_descriptor_ecm_eth_stats_directed_frames_xmit;
 103 static int hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_xmit;
 104 static int hf_usb_com_descriptor_ecm_eth_stats_rcv_no_buffer;
 105 static int hf_usb_com_descriptor_ecm_eth_stats_rcv_error;
 106 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_error;
 107 static int hf_usb_com_descriptor_ecm_eth_stats_rvc_ok;
 108 static int hf_usb_com_descriptor_ecm_eth_stats_xmit_ok;
 109 static int hf_usb_com_descriptor_ecm_max_segment_size;
 110 static int hf_usb_com_descriptor_ecm_nb_mc_filters;
 111 static int hf_usb_com_descriptor_ecm_nb_mc_filters_mc_address_filtering;
 112 static int hf_usb_com_descriptor_ecm_nb_mc_filters_nb_filters_supported;
 113 static int hf_usb_com_descriptor_ecm_nb_power_filters;
 114 static int hf_usb_com_interrupt_request_type;
 115 static int hf_usb_com_interrupt_notif_code;
 116 static int hf_usb_com_interrupt_value;
 117 static int hf_usb_com_interrupt_value_nw_conn;
 118 static int hf_usb_com_interrupt_index;
 119 static int hf_usb_com_interrupt_length;
 120 static int hf_usb_com_interrupt_dl_bitrate;
 121 static int hf_usb_com_interrupt_ul_bitrate;
 122 static int hf_usb_com_interrupt_payload;
 123 static int hf_usb_com_data_stream;
 124 static int hf_usb_com_data_in_payload;
 125 static int hf_usb_com_data_out_payload;
 126
 127 static int ett_usb_com;
 128 static int ett_usb_com_capabilities;
 129 static int ett_usb_com_bitmap;
 130 static int ett_usb_com_descriptor_ecm_eth_stats;
 131 static int ett_usb_com_descriptor_ecm_nb_mc_filters;
 132
 133 static dissector_handle_t usb_com_descriptor_handle;
 134 static dissector_handle_t usb_com_control_handle;
 135 static dissector_handle_t usb_com_bulk_handle;
 136 static dissector_handle_t usb_com_interrupt_handle;
 137
 138 static dissector_handle_t mbim_control_handle;
 139 static dissector_handle_t mbim_descriptor_handle;
 140 static dissector_handle_t mbim_bulk_handle;
 141 static dissector_handle_t eth_withoutfcs_handle;
 142
 143 static expert_field ei_unexpected_controlling_iface;
 144
 145 static wmem_tree_t* controlling_ifaces;
 146
 147 typedef struct _controlling_iface {
 148     uint16_t interfaceClass;
 149     uint16_t interfaceSubclass;
 150     uint16_t interfaceProtocol;
 151 } controlling_iface_t;
 152
 153 static uint32_t cdc_data_stream_count;
 154
 155 typedef struct _cdc_data_conv {
 156     uint32_t stream;
 157 } cdc_data_conv_t;
 158
 159 #define CS_INTERFACE 0x24
 160 #define CS_ENDPOINT  0x25
 161
 162 static const value_string usb_com_descriptor_type_vals[] = {
 163     { CS_INTERFACE, "CS_INTERFACE"},
 164     { CS_ENDPOINT, "CS_ENDPOINT"},
 165     { 0, NULL}
 166 };
 167 static value_string_ext usb_com_descriptor_type_vals_ext = VALUE_STRING_EXT_INIT(usb_com_descriptor_type_vals);
 168
 169 static const value_string usb_com_descriptor_subtype_vals[] = {
 170     { 0x00, "Header Functional Descriptor"},
 171     { 0x01, "Call Management Functional Descriptor"},
 172     { 0x02, "Abstract Control Management Functional Descriptor"},
 173     { 0x03, "Direct Line Management Functional Descriptor"},
 174     { 0x04, "Telephone Ringer Functional Descriptor"},
 175     { 0x05, "Telephone Call and Line State Reporting Capabilities Functional Descriptor"},
 176     { 0x06, "Union Functional Descriptor"},
 177     { 0x07, "Country Selection Functional Descriptor"},
 178     { 0x08, "Telephone Operational Modes Functional Descriptor"},
 179     { 0x09, "USB Terminal Functional Descriptor"},
 180     { 0x0A, "Network Channel Terminal Descriptor"},
 181     { 0x0B, "Protocol Unit Functional Descriptor"},
 182     { 0x0C, "Extension Unit Functional Descriptor"},
 183     { 0x0D, "Multi-Channel Management Functional Descriptor"},
 184     { 0x0E, "CAPI Control Management Functional Descriptor"},
 185     { 0x0F, "Ethernet Networking Functional Descriptor"},
 186     { 0x10, "ATM Networking Functional Descriptor"},
 187     { 0x11, "Wireless Handset Control Model Functional Descriptor"},
 188     { 0x12, "Mobile Direct Line Model Functional Descriptor"},
 189     { 0x13, "MDLM Detail Functional Descriptor"},
 190     { 0x14, "Device Management Model Functional Descriptor"},
 191     { 0x15, "OBEX Functional Descriptor"},
 192     { 0x16, "Command Set Functional Descriptor"},
 193     { 0x17, "Command Set Detail Functional Descriptor"},
 194     { 0x18, "Telephone Control Model Functional Descriptor"},
 195     { 0x19, "OBEX Service Identifier Functional Descriptor"},
 196     { 0x1A, "NCM Functional Descriptor"},
 197     { 0x1B, "MBIM Functional Descriptor"},
 198     { 0x1C, "MBIM Extended Functional Descriptor"},
 199     { 0, NULL}
 200 };
 201 static value_string_ext usb_com_descriptor_subtype_vals_ext = VALUE_STRING_EXT_INIT(usb_com_descriptor_subtype_vals);
 202
 203 #define COM_SUBCLASS_RESERVED 0x00
 204 #define COM_SUBCLASS_DLCM     0x01
 205 #define COM_SUBCLASS_ACM      0x02
 206 #define COM_SUBCLASS_TCM      0x03
 207 #define COM_SUBCLASS_MCCM     0x04
 208 #define COM_SUBCLASS_CCM      0x05
 209 #define COM_SUBCLASS_ENCM     0x06
 210 #define COM_SUBCLASS_ANCM     0x07
 211 #define COM_SUBCLASS_WHCM     0x08
 212 #define COM_SUBCLASS_DM       0x09
 213 #define COM_SUBCLASS_MDLM     0x0a
 214 #define COM_SUBCLASS_OBEX     0x0b
 215 #define COM_SUBCLASS_EEM      0x0c
 216 #define COM_SUBCLASS_NCM      0x0d
 217 #define COM_SUBCLASS_MBIM     0x0e
 218
 219 static const value_string usb_com_subclass_vals[] = {
 220     {COM_SUBCLASS_RESERVED, "RESERVED"},
 221     {COM_SUBCLASS_DLCM, "Direct Line Control Model"},
 222     {COM_SUBCLASS_ACM, "Abstract Control Model"},
 223     {COM_SUBCLASS_TCM, "Telephone Control Model"},
 224     {COM_SUBCLASS_MCCM, "Multi-Channel Control Model"},
 225     {COM_SUBCLASS_CCM, "CAPI Control Model"},
 226     {COM_SUBCLASS_ENCM, "Ethernet Networking Control Model"},
 227     {COM_SUBCLASS_ANCM, "ATM Networking Control Model"},
 228     {COM_SUBCLASS_WHCM, "Wireless Handset Control Model"},
 229     {COM_SUBCLASS_DM, "Device Management"},
 230     {COM_SUBCLASS_MDLM, "Mobile Direct Line Model"},
 231     {COM_SUBCLASS_OBEX, "OBEX"},
 232     {COM_SUBCLASS_EEM, "Ethernet Emulation Model"},
 233     {COM_SUBCLASS_NCM, "Network Control Model"},
 234     {COM_SUBCLASS_MBIM, "Mobile Broadband Interface Model"},
 235     {0, NULL}
 236 };
 237 value_string_ext ext_usb_com_subclass_vals = VALUE_STRING_EXT_INIT(usb_com_subclass_vals);
 238
 239 #define SEND_ENCAPSULATED_COMMAND                    0x00
 240 #define GET_ENCAPSULATED_RESPONSE                    0x01
 241 #define SET_COMM_FEATURE                             0x02
 242 #define GET_COMM_FEATURE                             0x03
 243 #define CLEAR_COMM_FEATURE                           0x04
 244 #define RESET_FUNCTION                               0x05
 245 #define SET_AUX_LINE_STATE                           0x10
 246 #define SET_HOOK_STATE                               0x11
 247 #define PULSE_SETUP                                  0x12
 248 #define SEND_PULSE                                   0x13
 249 #define SET_PULSE_TIME                               0x14
 250 #define RING_AUX_JACK                                0x15
 251 #define SET_LINE_CODING                              0x20
 252 #define GET_LINE_CODING                              0x21
 253 #define SET_CONTROL_LINE_STATE                       0x22
 254 #define SEND_BREAK                                   0x23
 255 #define SET_RINGER_PARMS                             0x30
 256 #define GET_RINGER_PARMS                             0x31
 257 #define SET_OPERATION_PARMS                          0x32
 258 #define GET_OPERATION_PARMS                          0x33
 259 #define SET_LINE_PARMS                               0x34
 260 #define GET_LINE_PARMS                               0x35
 261 #define DIAL_DIGITS                                  0x36
 262 #define SET_UNIT_PARAMETER                           0x37
 263 #define GET_UNIT_PARAMETER                           0x38
 264 #define CLEAR_UNIT_PARAMETER                         0x39
 265 #define GET_PROFILE                                  0x3a
 266 #define SET_ETHERNET_MULTICAST_FILTERS               0x40
 267 #define SET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER 0x41
 268 #define GET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER 0x42
 269 #define SET_ETHERNET_PACKET_FILTER                   0x43
 270 #define GET_ETHERNET_STATISTIC                       0x44
 271 #define SET_ATM_DATA_FORMAT                          0x50
 272 #define GET_ATM_DEVICE_STATISTICS                    0x51
 273 #define SET_ATM_DEFAULT_VC                           0x52
 274 #define GET_ATM_VC_STATISTICS                        0x53
 275 #define GET_NTB_PARAMETERS                           0x80
 276 #define GET_NET_ADDRESS                              0x81
 277 #define SET_NET_ADDRESS                              0x82
 278 #define GET_NTB_FORMAT                               0x83
 279 #define SET_NTB_FORMAT                               0x84
 280 #define GET_NTB_INPUT_SIZE                           0x85
 281 #define SET_NTB_INPUT_SIZE                           0x86
 282 #define GET_MAX_DATAGRAM_SIZE                        0x87
 283 #define SET_MAX_DATAGRAM_SIZE                        0x88
 284 #define GET_CRC_MODE                                 0x89
 285 #define SET_CRC_MODE                                 0x8a
 286
 287 static const value_string usb_com_setup_request_vals[] = {
 288     {SEND_ENCAPSULATED_COMMAND, "SEND ENCAPSULATED COMMAND"},
 289     {GET_ENCAPSULATED_RESPONSE, "GET ENCAPSULATED RESPONSE"},
 290     {SET_COMM_FEATURE, "SET COMM FEATURE"},
 291     {GET_COMM_FEATURE, "GET COMM FEATURE"},
 292     {CLEAR_COMM_FEATURE, "CLEAR COMM FEATURE"},
 293     {RESET_FUNCTION, "RESET FUNCTION"},
 294     {SET_AUX_LINE_STATE, "SET AUX LINE STATE"},
 295     {SET_HOOK_STATE, "SET HOOK STATE"},
 296     {PULSE_SETUP, "PULSE SETUP"},
 297     {SEND_PULSE, "SEND PULSE"},
 298     {SET_PULSE_TIME, "SET PULSE TIME"},
 299     {RING_AUX_JACK, "RING AUX JACK"},
 300     {SET_LINE_CODING, "SET LINE CODING"},
 301     {GET_LINE_CODING, "GET LINE CODING"},
 302     {SET_CONTROL_LINE_STATE, "SET CONTROL LINE STATE"},
 303     {SEND_BREAK, "SEND BREAK"},
 304     {SET_RINGER_PARMS, "SET RINGER PARMS"},
 305     {GET_RINGER_PARMS, "GET RINGER PARMS"},
 306     {SET_OPERATION_PARMS, "SET OPERATION PARMS"},
 307     {GET_OPERATION_PARMS, "GET OPERATION PARMS"},
 308     {SET_LINE_PARMS, "SET LINE PARMS"},
 309     {GET_LINE_PARMS, "GET LINE PARMS"},
 310     {DIAL_DIGITS, "DIAL DIGITS"},
 311     {SET_UNIT_PARAMETER, "SET UNIT PARAMETER"},
 312     {GET_UNIT_PARAMETER, "GET UNIT PARAMETER"},
 313     {CLEAR_UNIT_PARAMETER, "CLEAR UNIT PARAMETER"},
 314     {GET_PROFILE, "GET PROFILE"},
 315     {SET_ETHERNET_MULTICAST_FILTERS, "SET ETHERNET MULTICAST FILTERS"},
 316     {SET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER, "SET ETHERNET POWER MANAGEMENT PATTERN FILTER"},
 317     {GET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER, "GET ETHERNET POWER MANAGEMENT PATTERN FILTER"},
 318     {SET_ETHERNET_PACKET_FILTER, "SET ETHERNET PACKET FILTER"},
 319     {GET_ETHERNET_STATISTIC, "GET ETHERNET STATISTIC"},
 320     {SET_ATM_DATA_FORMAT, "SET ATM DATA FORMAT"},
 321     {GET_ATM_DEVICE_STATISTICS, "GET ATM DEVICE STATISTICS"},
 322     {SET_ATM_DEFAULT_VC, "SET ATM DEFAULT VC"},
 323     {GET_ATM_VC_STATISTICS, "GET ATM VC STATISTICS"},
 324     {GET_NTB_PARAMETERS, "GET NTB PARAMETERS"},
 325     {GET_NET_ADDRESS, "GET NET ADDRESS"},
 326     {SET_NET_ADDRESS, "SET NET ADDRESS"},
 327     {GET_NTB_FORMAT, "GET NTB FORMAT"},
 328     {SET_NTB_FORMAT, "SET NTB FORMAT"},
 329     {GET_NTB_INPUT_SIZE, "GET NTB INPUT SIZE"},
 330     {SET_NTB_INPUT_SIZE, "SET NTB INPUT SIZE"},
 331     {GET_MAX_DATAGRAM_SIZE, "GET MAX DATAGRAM SIZE"},
 332     {SET_MAX_DATAGRAM_SIZE, "SET MAX DATAGRAM SIZE"},
 333     {GET_CRC_MODE, "GET CRC MODE"},
 334     {SET_CRC_MODE, "SET CRC MODE"},
 335     {0, NULL}
 336 };
 337 static value_string_ext usb_com_setup_request_vals_ext = VALUE_STRING_EXT_INIT(usb_com_setup_request_vals);
 338
 339 static int * const usb_com_get_ntb_params_ntb_formats_supported_fields[] = {
 340     &hf_usb_com_get_ntb_params_ntb_formats_supported_16bit,
 341     &hf_usb_com_get_ntb_params_ntb_formats_supported_32bit,
 342     NULL
 343 };
 344
 345 static const value_string usb_com_ntb_format_vals[] = {
 346     { 0x0000, "NTB-16"},
 347     { 0x0001, "NTB-32"},
 348     {0, NULL}
 349 };
 350
 351 static const value_string usb_com_crc_mode_vals[] = {
 352     { 0x0000, "CRCs shall not be appended"},
 353     { 0x0001, "CRCs shall be appended"},
 354     {0, NULL}
 355 };
 356
 357 static int * const ecm_eth_stats[] = {
 358     &hf_usb_com_descriptor_ecm_eth_stats_reserved,
 359     &hf_usb_com_descriptor_ecm_eth_stats_xmit_late_collisions,
 360     &hf_usb_com_descriptor_ecm_eth_stats_xmit_times_crs_lost,
 361     &hf_usb_com_descriptor_ecm_eth_stats_xmit_heartbeat_failure,
 362     &hf_usb_com_descriptor_ecm_eth_stats_xmit_underrun,
 363     &hf_usb_com_descriptor_ecm_eth_stats_rcv_overrun,
 364     &hf_usb_com_descriptor_ecm_eth_stats_xmit_max_collisions,
 365     &hf_usb_com_descriptor_ecm_eth_stats_xmit_deferred,
 366     &hf_usb_com_descriptor_ecm_eth_stats_xmit_more_collisions,
 367     &hf_usb_com_descriptor_ecm_eth_stats_xmit_one_collision,
 368     &hf_usb_com_descriptor_ecm_eth_stats_rcv_error_alignment,
 369     &hf_usb_com_descriptor_ecm_eth_stats_transmit_queue_length,
 370     &hf_usb_com_descriptor_ecm_eth_stats_rcv_crc_error,
 371     &hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_rcv,
 372     &hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_rcv,
 373     &hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_rcv,
 374     &hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_rcv,
 375     &hf_usb_com_descriptor_ecm_eth_stats_directed_frames_rcv,
 376     &hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_rcv,
 377     &hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_xmit,
 378     &hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_xmit,
 379     &hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_xmit,
 380     &hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_xmit,
 381     &hf_usb_com_descriptor_ecm_eth_stats_directed_frames_xmit,
 382     &hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_xmit,
 383     &hf_usb_com_descriptor_ecm_eth_stats_rcv_no_buffer,
 384     &hf_usb_com_descriptor_ecm_eth_stats_rcv_error,
 385     &hf_usb_com_descriptor_ecm_eth_stats_xmit_error,
 386     &hf_usb_com_descriptor_ecm_eth_stats_rvc_ok,
 387     &hf_usb_com_descriptor_ecm_eth_stats_xmit_ok,
 388     NULL
 389 };
 390
 391 static const true_false_string usb_com_ecm_mc_address_filtering = {
 392     "Imperfect",
 393     "Perfect"
 394 };
 395
 396 static int * const ecm_nb_mc_filters[] = {
 397     &hf_usb_com_descriptor_ecm_nb_mc_filters_mc_address_filtering,
 398     &hf_usb_com_descriptor_ecm_nb_mc_filters_nb_filters_supported,
 399     NULL
 400 };
 401
 402 #define NETWORK_CONNECTION      0x00
 403 #define RESPONSE_AVAILABLE      0x01
 404 #define AUX_JACK_HOOK_STATE     0x08
 405 #define RING_DETECT             0x09
 406 #define SERIAL_STATE            0x20
 407 #define CALL_STATE_CHANGE       0x28
 408 #define LINE_STATE_CHANGE       0x29
 409 #define CONNECTION_SPEED_CHANGE 0x2a
 410
 411 static const value_string usb_com_interrupt_notif_code_vals[] = {
 412     {NETWORK_CONNECTION, "NETWORK CONNECTION"},
 413     {RESPONSE_AVAILABLE, "RESPONSE AVAILABLE"},
 414     {AUX_JACK_HOOK_STATE, "AUX JACK HOOK STATE"},
 415     {RING_DETECT, "RING DETECT"},
 416     {SERIAL_STATE, "SERIAL STATE"},
 417     {CALL_STATE_CHANGE, "CALL STATE CHANGE"},
 418     {LINE_STATE_CHANGE, "LINE STATE CHANGE"},
 419     {CONNECTION_SPEED_CHANGE, "CONNECTION SPEED CHANGE"},
 420     {0, NULL}
 421 };
 422
 423 static const value_string usb_com_interrupt_value_nw_conn_vals[] = {
 424     {0, "Disconnect"},
 425     {1, "Connected"},
 426     {0, NULL}
 427 };
 428
 429 void proto_register_usb_com(void);
 430 void proto_reg_handoff_usb_com(void);
 431
 432 static int
 433 dissect_usb_com_descriptor(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
 434 {
 435     urb_info_t *urb = (urb_info_t *)data;
 436     int offset = 0;
 437     uint8_t type, subtype;
 438     proto_tree *subtree;
 439     proto_tree *subtree_capabilities;
 440     proto_item *subitem_capabilities;
 441
 442     if (!urb) {
 443         return 0;
 444     }
 445
 446     subtree = proto_tree_add_subtree(tree, tvb, offset, tvb_captured_length(tvb), ett_usb_com, NULL, "COMMUNICATIONS DESCRIPTOR");
 447
 448     dissect_usb_descriptor_header(subtree, tvb, offset, &usb_com_descriptor_type_vals_ext);
 449     offset += 2;
 450
 451     type = tvb_get_uint8(tvb, 1);
 452     switch (type) {
 453         case CS_INTERFACE:
 454             subtype = tvb_get_uint8(tvb, offset);
 455             proto_tree_add_uint(subtree, hf_usb_com_descriptor_subtype, tvb, offset, 1, subtype);
 456             offset++;
 457             switch (subtype) {
 458                 case 0x00:
 459                     proto_tree_add_item(subtree, hf_usb_com_descriptor_cdc, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 460                     offset += 2;
 461                     break;
 462                 case 0x01:
 463                     subitem_capabilities = proto_tree_add_item(subtree, hf_usb_com_capabilities, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 464                     subtree_capabilities = proto_item_add_subtree(subitem_capabilities, ett_usb_com_capabilities);
 465
 466                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_cm_capabilities_reserved, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 467                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_cm_capabilities_call_management_over_data_class_interface, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 468                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_cm_capabilities_call_management, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 469
 470                     proto_tree_add_item(subtree, hf_usb_com_descriptor_cm_data_interface, tvb, 4, 1, ENC_LITTLE_ENDIAN);
 471                     offset = 5;
 472                     break;
 473                 case 0x02:
 474                     subitem_capabilities = proto_tree_add_item(subtree, hf_usb_com_capabilities, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 475                     subtree_capabilities = proto_item_add_subtree(subitem_capabilities, ett_usb_com_capabilities);
 476
 477                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_acm_capabilities_reserved, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 478                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_acm_capabilities_network_connection, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 479                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_acm_capabilities_send_break, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 480                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_acm_capabilities_line_and_state, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 481                     proto_tree_add_item(subtree_capabilities, hf_usb_com_descriptor_acm_capabilities_comm_features, tvb, 3, 1, ENC_LITTLE_ENDIAN);
 482                     offset = 4;
 483                     break;
 484                 case 0x06: {
 485                     proto_item *control_item;
 486                     uint32_t k_bus_id;
 487                     uint32_t k_device_address;
 488                     uint32_t k_subordinate_id;
 489                     uint32_t k_frame_number;
 490                     wmem_tree_key_t key[] = {
 491                         { .length = 1, .key = &k_bus_id },
 492                         { .length = 1, .key = &k_device_address },
 493                         { .length = 1, .key = &k_subordinate_id },
 494                         { .length = 1, .key = &k_frame_number },
 495                         { .length = 0, .key = NULL },
 496                     };
 497                     controlling_iface_t *master_info = NULL;
 498                     uint32_t master;
 499
 500                     k_bus_id = urb->bus_id;
 501                     k_device_address = urb->device_address;
 502                     k_frame_number = pinfo->num;
 503
 504                     control_item = proto_tree_add_item_ret_uint(subtree, hf_usb_com_descriptor_control_interface, tvb, offset, 1, ENC_LITTLE_ENDIAN, &master);
 505
 506                     if (master != urb->conv->interfaceNum) {
 507                         expert_add_info(pinfo, control_item, &ei_unexpected_controlling_iface);
 508                     } else if (!PINFO_FD_VISITED(pinfo)) {
 509                         master_info = wmem_new(wmem_file_scope(), controlling_iface_t);
 510                         master_info->interfaceClass = urb->conv->interfaceClass;
 511                         master_info->interfaceSubclass = urb->conv->interfaceSubclass;
 512                         master_info->interfaceProtocol = urb->conv->interfaceProtocol;
 513                     }
 514
 515                     offset += 1;
 516                     while (tvb_reported_length_remaining(tvb,offset) > 0) {
 517                         proto_tree_add_item_ret_uint(subtree, hf_usb_com_descriptor_subordinate_interface, tvb, offset, 1, ENC_LITTLE_ENDIAN, &k_subordinate_id);
 518                         offset += 1;
 519
 520                         if (master_info) {
 521                             wmem_tree_insert32_array(controlling_ifaces, key, master_info);
 522                         }
 523                     }
 524                     break;
 525                 }
 526                 case 0x0f:
 527                     proto_tree_add_item(subtree, hf_usb_com_descriptor_ecm_mac_address, tvb, offset, 1, ENC_LITTLE_ENDIAN);
 528                     offset += 1;
 529                     proto_tree_add_bitmask_with_flags(subtree, tvb, offset, hf_usb_com_descriptor_ecm_eth_stats,
 530                                                       ett_usb_com_descriptor_ecm_eth_stats, ecm_eth_stats,
 531                                                       ENC_LITTLE_ENDIAN, BMT_NO_APPEND);
 532                     offset += 4;
 533                     proto_tree_add_item(subtree, hf_usb_com_descriptor_ecm_max_segment_size, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 534                     offset += 2;
 535                     proto_tree_add_bitmask_with_flags(subtree, tvb, offset, hf_usb_com_descriptor_ecm_nb_mc_filters,
 536                                                       ett_usb_com_descriptor_ecm_nb_mc_filters, ecm_nb_mc_filters,
 537                                                       ENC_LITTLE_ENDIAN, BMT_NO_APPEND);
 538                     offset += 2;
 539                     proto_tree_add_item(subtree, hf_usb_com_descriptor_ecm_nb_power_filters, tvb, offset, 1, ENC_LITTLE_ENDIAN);
 540                     offset += 1;
 541                     break;
 542                 case 0x1b:
 543                 case 0x1c:
 544                     offset = call_dissector_only(mbim_descriptor_handle, tvb, pinfo, subtree, data);
 545                     break;
 546                 default:
 547                     break;
 548             }
 549             break;
 550         case CS_ENDPOINT:
 551         default:
 552             break;
 553     }
 554
 555     if (tvb_reported_length_remaining(tvb, offset) > 0) {
 556         proto_tree_add_item(subtree, hf_usb_com_descriptor_payload, tvb, offset, -1, ENC_NA);
 557     }
 558     return tvb_captured_length(tvb);
 559 }
 560
 561 static int
 562 dissect_usb_com_get_ntb_params(tvbuff_t *tvb, proto_tree *tree, int base_offset)
 563 {
 564     int offset = base_offset;
 565
 566     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 567     offset += 2;
 568     proto_tree_add_bitmask(tree, tvb, offset, hf_usb_com_get_ntb_params_ntb_formats_supported, ett_usb_com_bitmap,
 569                            usb_com_get_ntb_params_ntb_formats_supported_fields, ENC_LITTLE_ENDIAN);
 570     offset += 2;
 571     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ntb_in_max_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);
 572     offset += 4;
 573     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_in_divisor, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 574     offset += 2;
 575     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_in_payload_remainder, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 576     offset += 2;
 577     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_in_alignment, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 578     offset += 2;
 579     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_reserved, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 580     offset += 2;
 581     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ntb_out_max_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);
 582     offset += 4;
 583     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_out_divisor, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 584     offset += 2;
 585     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_out_payload_remainder, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 586     offset += 2;
 587     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ndp_out_alignment, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 588     offset += 2;
 589     proto_tree_add_item(tree, hf_usb_com_get_ntb_params_ntb_out_max_datagrams, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 590     offset += 2;
 591
 592     return offset;
 593 }
 594
 595 static int
 596 dissect_usb_com_ntb_input_size(tvbuff_t *tvb, proto_tree *tree, int base_offset, bool is_set)
 597 {
 598     int offset = base_offset;
 599
 600     proto_tree_add_item(tree, is_set ? hf_usb_com_set_ntb_input_size_ntb_in_max_size :
 601                         hf_usb_com_get_ntb_input_size_ntb_in_max_size, tvb, offset, 4, ENC_LITTLE_ENDIAN);
 602     offset += 4;
 603     if (tvb_reported_length_remaining(tvb, offset) > 0) {
 604         proto_tree_add_item(tree, is_set ? hf_usb_com_set_ntb_input_size_ntb_in_max_datagrams :
 605                             hf_usb_com_get_ntb_input_size_ntb_in_max_datagrams, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 606         offset += 2;
 607         proto_tree_add_item(tree, is_set ? hf_usb_com_set_ntb_input_size_reserved :
 608                             hf_usb_com_get_ntb_input_size_reserved, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 609         offset += 2;
 610     }
 611
 612     return offset;
 613 }
 614
 615 static int
 616 dissect_usb_com_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
 617 {
 618     urb_info_t *urb = (urb_info_t *)data;
 619     usb_trans_info_t *usb_trans_info;
 620     proto_tree *subtree;
 621     proto_item *ti;
 622     int offset = 0;
 623     bool is_request;
 624
 625     if (tvb_reported_length(tvb) == 0) {
 626         return 0;
 627     }
 628
 629     col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBCOM");
 630
 631     ti = proto_tree_add_item(tree, proto_usb_com, tvb, 0, -1, ENC_NA);
 632     subtree = proto_item_add_subtree(ti, ett_usb_com);
 633
 634     if (urb) {
 635         usb_trans_info = urb->usb_trans_info;
 636
 637         ti = proto_tree_add_uint(subtree, hf_usb_com_control_subclass, tvb, 0, 0,
 638                                  urb->conv->interfaceSubclass);
 639         proto_item_set_generated(ti);
 640
 641         is_request = (pinfo->srcport==NO_ENDPOINT);
 642         col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
 643         val_to_str_ext(usb_trans_info->setup.request, &usb_com_setup_request_vals_ext, "Unknown type %x"),
 644             is_request ? "Request" : "Response");
 645
 646         if (is_request) {
 647             proto_tree_add_item(subtree, hf_usb_com_control_request_code, tvb, offset, 1, ENC_LITTLE_ENDIAN);
 648             offset += 1;
 649             proto_tree_add_item(subtree, hf_usb_com_control_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 650             offset += 2;
 651             proto_tree_add_item(subtree, hf_usb_com_control_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 652             offset += 2;
 653             proto_tree_add_item(subtree, hf_usb_com_control_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 654             offset += 2;
 655         } else {
 656             ti = proto_tree_add_uint(subtree, hf_usb_com_control_response_code, tvb, 0, 0,
 657                                      usb_trans_info->setup.request);
 658             proto_item_set_generated(ti);
 659         }
 660
 661         switch (usb_trans_info->setup.request)
 662         {
 663             case SEND_ENCAPSULATED_COMMAND:
 664                 if ((urb->conv->interfaceSubclass == COM_SUBCLASS_MBIM) && is_request) {
 665                     tvbuff_t *mbim_tvb = tvb_new_subset_remaining(tvb, offset);
 666                     offset += call_dissector_only(mbim_control_handle, mbim_tvb, pinfo, tree, urb);
 667                 }
 668                 break;
 669             case GET_ENCAPSULATED_RESPONSE:
 670                 if ((urb->conv->interfaceSubclass == COM_SUBCLASS_MBIM) && !is_request) {
 671                     offset += call_dissector_only(mbim_control_handle, tvb, pinfo, tree, urb);
 672                 }
 673                 break;
 674             case GET_NTB_PARAMETERS:
 675                 if (!is_request) {
 676                     offset = dissect_usb_com_get_ntb_params(tvb, subtree, offset);
 677                 }
 678                 break;
 679             case GET_NET_ADDRESS:
 680                 if (!is_request) {
 681                     proto_tree_add_item(subtree, hf_usb_com_get_net_address_eui48, tvb, offset, 6, ENC_NA);
 682                     offset += 6;
 683                 }
 684                 break;
 685             case SET_NET_ADDRESS:
 686                 if (is_request) {
 687                     proto_tree_add_item(subtree, hf_usb_com_set_net_address_eui48, tvb, offset, 6, ENC_NA);
 688                     offset += 6;
 689                 }
 690                 break;
 691             case GET_NTB_FORMAT:
 692                 if (!is_request) {
 693                     proto_tree_add_item(subtree, hf_usb_com_get_ntb_format_ntb_format, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 694                     offset += 2;
 695                 }
 696                 break;
 697             case SET_NTB_FORMAT:
 698                 if (is_request) {
 699                     proto_tree_add_item(subtree, hf_usb_com_set_ntb_format_ntb_format, tvb, offset-6, 2, ENC_LITTLE_ENDIAN);
 700                 }
 701                 break;
 702             case GET_NTB_INPUT_SIZE:
 703                 if (!is_request) {
 704                     offset = dissect_usb_com_ntb_input_size(tvb, subtree, offset, false);
 705                 }
 706                 break;
 707             case SET_NTB_INPUT_SIZE:
 708                 if (!is_request) {
 709                     offset = dissect_usb_com_ntb_input_size(tvb, subtree, offset, true);
 710                 }
 711                 break;
 712             case GET_MAX_DATAGRAM_SIZE:
 713                 if (!is_request) {
 714                     proto_tree_add_item(subtree, hf_usb_com_get_max_datagram_size_size, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 715                     offset += 2;
 716                 }
 717                 break;
 718             case SET_MAX_DATAGRAM_SIZE:
 719                 if (is_request) {
 720                     proto_tree_add_item(subtree, hf_usb_com_set_max_datagram_size_size, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 721                     offset += 2;
 722                 }
 723                 break;
 724             case GET_CRC_MODE:
 725                 if (!is_request) {
 726                     proto_tree_add_item(subtree, hf_usb_com_get_crc_mode_crc_mode, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 727                     offset += 2;
 728                 }
 729                 break;
 730             case SET_CRC_MODE:
 731                 if (is_request) {
 732                     proto_tree_add_item(subtree, hf_usb_com_set_crc_mode_crc_mode, tvb, offset-6, 2, ENC_LITTLE_ENDIAN);
 733                 }
 734                 break;
 735             default:
 736                 break;
 737         }
 738     }
 739
 740     if (tvb_reported_length_remaining(tvb, offset) > 0) {
 741         proto_tree_add_item(subtree, hf_usb_com_control_payload, tvb, offset, -1, ENC_NA);
 742     }
 743     return tvb_captured_length(tvb);
 744 }
 745
 746 static int
 747 dissect_usb_com_bulk(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
 748 {
 749     urb_info_t *urb = (urb_info_t *)data;
 750     usb_conv_info_t *usb_conv_info;
 751     cdc_data_conv_t *cdc_data_info;
 752     uint32_t k_bus_id;
 753     uint32_t k_device_address;
 754     uint32_t k_subordinate_id;
 755     wmem_tree_key_t key[] = {
 756         { .length = 1, .key = &k_bus_id },
 757         { .length = 1, .key = &k_device_address },
 758         { .length = 1, .key = &k_subordinate_id },
 759         { .length = 0, .key = NULL },
 760     };
 761     wmem_tree_t *wmem_tree;
 762     controlling_iface_t *master_iface = NULL;
 763     proto_tree *subtree;
 764     proto_item *item;
 765
 766     if (!urb || !urb->conv) {
 767         return 0;
 768     }
 769
 770     usb_conv_info = urb->conv;
 771
 772     if ((usb_conv_info->interfaceClass != IF_CLASS_CDC_DATA) || (usb_conv_info->interfaceSubclass != 0)) {
 773         /* As per Communications Device Class Revision 1.2 subclass is currently unused for CDC Data and should be zero
 774          * If it is not, then we are either dealing with malformed descriptor or a new CDC Revision.
 775          */
 776         return 0;
 777     }
 778
 779     /* Generic handling to allow follow stream functionality regardless if data
 780      * is passed to higher layer dissector or not.
 781      */
 782     cdc_data_info = (cdc_data_conv_t *)usb_conv_info->class_data;
 783     if (!cdc_data_info) {
 784         cdc_data_info = wmem_new(wmem_file_scope(), cdc_data_conv_t);
 785         cdc_data_info->stream = cdc_data_stream_count++;
 786         usb_conv_info->class_data = cdc_data_info;
 787         usb_conv_info->class_data_type = USB_CONV_CDC_DATA;
 788     } else if (usb_conv_info->class_data_type != USB_CONV_CDC_DATA) {
 789         /* Don't dissect if another USB type is in the conversation */
 790         return 0;
 791     }
 792
 793     col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBCOM");
 794
 795     item = proto_tree_add_item(tree, proto_usb_com, tvb, 0, -1, ENC_NA);
 796     subtree = proto_item_add_subtree(item, ett_usb_com);
 797
 798     item = proto_tree_add_uint(subtree, hf_usb_com_data_stream, tvb, 0, 0, cdc_data_info->stream);
 799     proto_item_set_generated(item);
 800
 801     if (pinfo->p2p_dir == P2P_DIR_RECV) {
 802         proto_tree_add_item(subtree, hf_usb_com_data_in_payload, tvb, 0, -1, ENC_NA);
 803     } else {
 804         proto_tree_add_item(subtree, hf_usb_com_data_out_payload, tvb, 0, -1, ENC_NA);
 805     }
 806
 807     if (have_tap_listener(cdc_data_follow_tap)) {
 808         tap_queue_packet(cdc_data_follow_tap, pinfo, tvb);
 809     }
 810
 811     k_bus_id = urb->bus_id;
 812     k_device_address = urb->device_address;
 813     k_subordinate_id = usb_conv_info->interfaceNum;
 814
 815     wmem_tree = (wmem_tree_t*)wmem_tree_lookup32_array(controlling_ifaces, key);
 816     if (wmem_tree) {
 817         master_iface = (controlling_iface_t *)wmem_tree_lookup32_le(wmem_tree, pinfo->num);
 818     }
 819
 820     if (master_iface) {
 821         if (master_iface->interfaceClass == IF_CLASS_COMMUNICATIONS) {
 822             if ((master_iface->interfaceSubclass == COM_SUBCLASS_ENCM) &&
 823                 (master_iface->interfaceProtocol == 0) &&
 824                 (usb_conv_info->interfaceProtocol == 0)) {
 825                 /* Ethernet without FCS */
 826                 return call_dissector_only(eth_withoutfcs_handle, tvb, pinfo, tree, NULL);
 827             }
 828         }
 829     }
 830
 831
 832     switch (usb_conv_info->interfaceProtocol) {
 833         case 0x01: /* Network Transfer Block */
 834         case 0x02: /* Network Transfer Block (IP + DSS) */
 835             return call_dissector_only(mbim_bulk_handle, tvb, pinfo, tree, NULL);
 836         default:
 837             break;
 838     }
 839
 840     /* Unknown (class, subclass, protocol) tuple. No further dissection. */
 841     return tvb_captured_length(tvb);
 842 }
 843
 844 static int
 845 dissect_usb_com_interrupt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 846 {
 847     proto_tree *subtree;
 848     proto_item *it;
 849     uint32_t notif_code;
 850     int offset = 0;
 851
 852     col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBCOM");
 853
 854     it = proto_tree_add_item(tree, proto_usb_com, tvb, 0, -1, ENC_NA);
 855     subtree = proto_item_add_subtree(it, ett_usb_com);
 856
 857     proto_tree_add_item(subtree, hf_usb_com_interrupt_request_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
 858     offset++;
 859     proto_tree_add_item_ret_uint(subtree, hf_usb_com_interrupt_notif_code, tvb, offset, 1, ENC_LITTLE_ENDIAN, &notif_code);
 860     offset++;
 861     col_add_str(pinfo->cinfo, COL_INFO, val_to_str(notif_code, usb_com_interrupt_notif_code_vals, "Unknown type %x"));
 862     switch (notif_code) {
 863         case NETWORK_CONNECTION:
 864             proto_tree_add_item(subtree, hf_usb_com_interrupt_value_nw_conn, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 865             offset += 2;
 866             proto_tree_add_item(subtree, hf_usb_com_interrupt_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 867             offset += 2;
 868             proto_tree_add_item(subtree, hf_usb_com_interrupt_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 869             offset += 2;
 870             break;
 871         case RESPONSE_AVAILABLE:
 872             proto_tree_add_item(subtree, hf_usb_com_interrupt_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 873             offset += 2;
 874             proto_tree_add_item(subtree, hf_usb_com_interrupt_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 875             offset += 2;
 876             proto_tree_add_item(subtree, hf_usb_com_interrupt_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 877             offset += 2;
 878             break;
 879         case CONNECTION_SPEED_CHANGE:
 880             proto_tree_add_item(subtree, hf_usb_com_interrupt_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 881             offset += 2;
 882             proto_tree_add_item(subtree, hf_usb_com_interrupt_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 883             offset += 2;
 884             proto_tree_add_item(subtree, hf_usb_com_interrupt_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
 885             offset += 2;
 886             proto_tree_add_item(subtree, hf_usb_com_interrupt_dl_bitrate, tvb, offset, 4, ENC_LITTLE_ENDIAN);
 887             offset += 4;
 888             proto_tree_add_item(subtree, hf_usb_com_interrupt_ul_bitrate, tvb, offset, 4, ENC_LITTLE_ENDIAN);
 889             offset += 4;
 890             break;
 891         default:
 892             break;
 893     }
 894
 895     if (tvb_reported_length_remaining(tvb, offset) > 0) {
 896         proto_tree_add_item(subtree, hf_usb_com_interrupt_payload, tvb, offset, -1, ENC_NA);
 897     }
 898     return tvb_captured_length(tvb);
 899 }
 900
 901 static cdc_data_conv_t *get_cdc_data_conv(packet_info *pinfo)
 902 {
 903     conversation_t *conversation;
 904     usb_conv_info_t *usb_conv_info;
 905
 906     if (pinfo->ptype != PT_USB) {
 907         return NULL;
 908     }
 909
 910     conversation = find_conversation(pinfo->num, &pinfo->src, &pinfo->dst, CONVERSATION_USB,
 911                                      pinfo->srcport, pinfo->destport, 0);
 912     if (!conversation) {
 913         return NULL;
 914     }
 915
 916     usb_conv_info = (usb_conv_info_t *)conversation_get_proto_data(conversation, proto_usb);
 917     if (!usb_conv_info || (usb_conv_info->class_data_type != USB_CONV_CDC_DATA)) {
 918         return NULL;
 919     }
 920
 921     return (cdc_data_conv_t *)usb_conv_info->class_data;
 922 }
 923
 924 static char *cdc_data_follow_conv_filter(epan_dissect_t *edt _U_, packet_info *pinfo, unsigned *stream, unsigned *sub_stream _U_)
 925 {
 926     cdc_data_conv_t *cdc_data_info;
 927
 928     cdc_data_info = get_cdc_data_conv(pinfo);
 929     if (cdc_data_info) {
 930         *stream = cdc_data_info->stream;
 931         return ws_strdup_printf("usbcom.data.stream eq %u", cdc_data_info->stream);
 932     }
 933
 934     return NULL;
 935 }
 936
 937 static char *cdc_data_follow_index_filter(unsigned stream, unsigned sub_stream _U_)
 938 {
 939     return ws_strdup_printf("usbcom.data.stream eq %u", stream);
 940 }
 941
 942 static char *cdc_data_follow_address_filter(address *src_addr _U_, address *dst_addr _U_, int src_port _U_, int dst_port _U_)
 943 {
 944     /* We always just filter stream based on an arbitrarily generated index. */
 945     return NULL;
 946 }
 947
 948 static char *cdc_data_port_to_display(wmem_allocator_t *allocator, unsigned port)
 949 {
 950     return wmem_strdup(allocator, port == NO_ENDPOINT ? "host" : "device");
 951 }
 952
 953 static tap_packet_status
 954 follow_cdc_data_tap_listener(void *tapdata, packet_info *pinfo, epan_dissect_t *edt _U_,
 955                              const void *data, tap_flags_t flags _U_)
 956 {
 957     follow_record_t *follow_record;
 958     follow_info_t *follow_info = (follow_info_t *)tapdata;
 959     tvbuff_t *tvb = (tvbuff_t *)data;
 960     uint32_t data_length = tvb_captured_length(tvb);
 961     bool is_server;
 962
 963     if (follow_info->client_port == 0) {
 964         /* XXX: Client/Server does not quite match how USB works. Simply assume
 965          * that host is "server" but it is important to note that client port
 966          * will be set to either IN or OUT endpoint (whichever transmits data
 967          * first). Client "receive" is OUT endpoint while client "transmit" is
 968          * IN endpoint. The "other end" is always host.
 969          */
 970         if (pinfo->srcport == NO_ENDPOINT) {
 971             follow_info->client_port = pinfo->destport;
 972             copy_address(&follow_info->client_ip, &pinfo->dst);
 973             follow_info->server_port = pinfo->srcport;
 974             copy_address(&follow_info->server_ip, &pinfo->src);
 975         } else {
 976             follow_info->client_port = pinfo->srcport;
 977             copy_address(&follow_info->client_ip, &pinfo->src);
 978             follow_info->server_port = pinfo->destport;
 979             copy_address(&follow_info->server_ip, &pinfo->dst);
 980         }
 981     }
 982
 983     is_server = pinfo->srcport == NO_ENDPOINT;
 984
 985     follow_record = g_new0(follow_record_t, 1);
 986     follow_record->is_server = is_server;
 987     follow_record->packet_num = pinfo->fd->num;
 988     follow_record->abs_ts = pinfo->fd->abs_ts;
 989     follow_record->data = g_byte_array_append(g_byte_array_new(),
 990                                               tvb_get_ptr(tvb, 0, data_length),
 991                                               data_length);
 992
 993     follow_info->bytes_written[is_server] += follow_record->data->len;
 994     follow_info->payload = g_list_prepend(follow_info->payload, follow_record);
 995
 996     return TAP_PACKET_DONT_REDRAW;
 997 }
 998
 999 static uint32_t get_cdc_data_stream_count(void)
1000 {
1001     return cdc_data_stream_count;
1002 }
1003
1004 static void
1005 usb_com_cleanup_data(void)
1006 {
1007     cdc_data_stream_count = 0;
1008 }
1009
1010 void
1011 proto_register_usb_com(void)
1012 {
1013     static hf_register_info hf[] = {
1014         { &hf_usb_com_descriptor_subtype,
1015             { "Descriptor Subtype", "usbcom.descriptor.subtype", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
1016               &usb_com_descriptor_subtype_vals_ext, 0, NULL, HFILL }},
1017         { &hf_usb_com_descriptor_cdc,
1018             { "CDC", "usbcom.descriptor.cdc", FT_UINT16, BASE_HEX,
1019               NULL, 0, NULL, HFILL }},
1020         { &hf_usb_com_descriptor_payload,
1021             { "Payload", "usbcom.descriptor.payload", FT_BYTES, BASE_NONE,
1022               NULL, 0, NULL, HFILL }},
1023         { &hf_usb_com_control_subclass,
1024             { "Subclass", "usbcom.control.subclass", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
1025               &ext_usb_com_subclass_vals, 0, NULL, HFILL }},
1026         { &hf_usb_com_control_request_code,
1027             { "Request Code", "usbcom.control.request_code", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
1028               &usb_com_setup_request_vals_ext, 0, NULL, HFILL }},
1029         { &hf_usb_com_control_value,
1030             { "Value", "usbcom.control.value", FT_UINT16, BASE_DEC,
1031               NULL, 0, NULL, HFILL }},
1032         { &hf_usb_com_control_index,
1033             { "Index", "usbcom.control.index", FT_UINT16, BASE_DEC,
1034               NULL, 0, NULL, HFILL }},
1035         { &hf_usb_com_control_length,
1036             { "Length", "usbcom.control.length", FT_UINT16, BASE_DEC,
1037               NULL, 0, NULL, HFILL }},
1038         { &hf_usb_com_control_response_code,
1039             { "Response Code", "usbcom.control.response_code", FT_UINT8, BASE_HEX|BASE_EXT_STRING,
1040               &usb_com_setup_request_vals_ext, 0, NULL, HFILL }},
1041         { &hf_usb_com_get_ntb_params_length,
1042             { "Length", "usbcom.control.get_ntb_params.length", FT_UINT16, BASE_DEC,
1043               NULL, 0, NULL, HFILL }},
1044         { &hf_usb_com_get_ntb_params_ntb_formats_supported,
1045             { "NTB Formats Supported", "usbcom.control.get_ntb_params.ntb_formats_supported", FT_UINT16, BASE_HEX,
1046               NULL, 0, NULL, HFILL }},
1047         { &hf_usb_com_get_ntb_params_ntb_formats_supported_16bit,
1048             { "16-bit NTB", "usbcom.control.get_ntb_params.ntb_formats_supported.16bit", FT_BOOLEAN, 16,
1049               TFS(&tfs_supported_not_supported), 0x0001, NULL, HFILL }},
1050         { &hf_usb_com_get_ntb_params_ntb_formats_supported_32bit,
1051             { "32-bit NTB", "usbcom.control.get_ntb_params.ntb_formats_supported.32bit", FT_BOOLEAN, 16,
1052               TFS(&tfs_supported_not_supported), 0x0002, NULL, HFILL }},
1053         { &hf_usb_com_get_ntb_params_ntb_in_max_size,
1054             { "NTB IN Max Size", "usbcom.control.get_ntb_params.ntb_in_max_size", FT_UINT32, BASE_DEC,
1055               NULL, 0, NULL, HFILL }},
1056         { &hf_usb_com_get_ntb_params_ndp_in_divisor,
1057             { "NDP IN Divisor", "usbcom.control.get_ntb_params.ndp_in_divisor", FT_UINT16, BASE_DEC,
1058               NULL, 0, NULL, HFILL }},
1059         { &hf_usb_com_get_ntb_params_ndp_in_payload_remainder,
1060             { "NDP IN Payload Remainder", "usbcom.control.get_ntb_params.ndp_in_payload_remainder", FT_UINT16, BASE_DEC,
1061               NULL, 0, NULL, HFILL }},
1062         { &hf_usb_com_get_ntb_params_ndp_in_alignment,
1063             { "NDP IN Alignment", "usbcom.control.get_ntb_params.ndp_in_alignment", FT_UINT16, BASE_DEC,
1064               NULL, 0, NULL, HFILL }},
1065         { &hf_usb_com_get_ntb_params_reserved,
1066             { "Reserved", "usbcom.control.get_ntb_params.reserved", FT_UINT16, BASE_HEX,
1067               NULL, 0, NULL, HFILL }},
1068         { &hf_usb_com_get_ntb_params_ntb_out_max_size,
1069             { "NTB OUT Max Size", "usbcom.control.get_ntb_params.ntb_out_max_size", FT_UINT32, BASE_DEC,
1070               NULL, 0, NULL, HFILL }},
1071         { &hf_usb_com_get_ntb_params_ndp_out_divisor,
1072             { "NDP OUT Divisor", "usbcom.control.get_ntb_params.ndp_out_divisor", FT_UINT16, BASE_DEC,
1073               NULL, 0, NULL, HFILL }},
1074         { &hf_usb_com_get_ntb_params_ndp_out_payload_remainder,
1075             { "NDP OUT Payload Remainder", "usbcom.control.get_ntb_params.ndp_out_payload_remainder", FT_UINT16, BASE_DEC,
1076               NULL, 0, NULL, HFILL }},
1077         { &hf_usb_com_get_ntb_params_ndp_out_alignment,
1078             { "NDP OUT Alignment", "usbcom.control.get_ntb_params.ndp_out_alignment", FT_UINT16, BASE_DEC,
1079               NULL, 0, NULL, HFILL }},
1080         { &hf_usb_com_get_ntb_params_ntb_out_max_datagrams,
1081             { "NTB OUT Max Datagrams", "usbcom.control.get_ntb_params.ntb_out_max_datagrams", FT_UINT16, BASE_DEC,
1082               NULL, 0, NULL, HFILL }},
1083         { &hf_usb_com_get_net_address_eui48,
1084             { "EUI-48", "usbcom.control.get_net_address.eui48", FT_ETHER, BASE_NONE,
1085               NULL, 0, NULL, HFILL }},
1086         { &hf_usb_com_set_net_address_eui48,
1087             { "EUI-48", "usbcom.control.set_net_address.eui48", FT_ETHER, BASE_NONE,
1088               NULL, 0, NULL, HFILL }},
1089         { &hf_usb_com_get_ntb_format_ntb_format,
1090             { "NTB Format", "usbcom.control.get_net_address.ntb_format", FT_UINT16, BASE_HEX,
1091               VALS(usb_com_ntb_format_vals), 0, NULL, HFILL }},
1092         { &hf_usb_com_set_ntb_format_ntb_format,
1093             { "NTB Format", "usbcom.control.set_net_address.ntb_format", FT_UINT16, BASE_HEX,
1094               VALS(usb_com_ntb_format_vals), 0, NULL, HFILL }},
1095         { &hf_usb_com_get_ntb_input_size_ntb_in_max_size,
1096             { "NTB IN Max Size", "usbcom.control.get_ntb_input_size.ntb_in_max_size", FT_UINT32, BASE_DEC,
1097               NULL, 0, NULL, HFILL }},
1098         { &hf_usb_com_get_ntb_input_size_ntb_in_max_datagrams,
1099             { "NTB IN Max Datagrams", "usbcom.control.get_ntb_input_size.ntb_in_max_datagrams", FT_UINT16, BASE_DEC,
1100               NULL, 0, NULL, HFILL }},
1101         { &hf_usb_com_get_ntb_input_size_reserved,
1102             { "Reserved", "usbcom.control.get_ntb_input_size.reserved", FT_UINT16, BASE_HEX,
1103               NULL, 0, NULL, HFILL }},
1104         { &hf_usb_com_set_ntb_input_size_ntb_in_max_size,
1105             { "NTB IN Max Size", "usbcom.control.set_ntb_input_size.ntb_in_max_size", FT_UINT32, BASE_DEC,
1106               NULL, 0, NULL, HFILL }},
1107         { &hf_usb_com_set_ntb_input_size_ntb_in_max_datagrams,
1108             { "NTB IN Max Datagrams", "usbcom.control.set_ntb_input_size.ntb_in_max_datagrams", FT_UINT16, BASE_DEC,
1109               NULL, 0, NULL, HFILL }},
1110         { &hf_usb_com_set_ntb_input_size_reserved,
1111             { "Reserved", "usbcom.control.set_ntb_input_size.reserved", FT_UINT16, BASE_HEX,
1112               NULL, 0, NULL, HFILL }},
1113         { &hf_usb_com_get_max_datagram_size_size,
1114             { "Max Datagram Size", "usbcom.control.get_max_datagram_size.size", FT_UINT16, BASE_DEC,
1115               NULL, 0, NULL, HFILL }},
1116         { &hf_usb_com_set_max_datagram_size_size,
1117             { "Max Datagram Size", "usbcom.control.set_max_datagram_size.size", FT_UINT16, BASE_DEC,
1118               NULL, 0, NULL, HFILL }},
1119         { &hf_usb_com_get_crc_mode_crc_mode,
1120             { "CRC Mode", "usbcom.control.get_crc_mode.crc_mode", FT_UINT16, BASE_HEX,
1121               VALS(usb_com_crc_mode_vals), 0, NULL, HFILL }},
1122         { &hf_usb_com_set_crc_mode_crc_mode,
1123             { "CRC Mode", "usbcom.control.set_crc_mode.crc_mode", FT_UINT16, BASE_HEX,
1124               VALS(usb_com_crc_mode_vals), 0, NULL, HFILL }},
1125         { &hf_usb_com_control_payload,
1126             { "Payload", "usbcom.control.payload", FT_BYTES, BASE_NONE,
1127               NULL, 0, NULL, HFILL }},
1128         { &hf_usb_com_capabilities,
1129             { "bmCapabilities", "usbcom.descriptor.capabilities", FT_UINT8, BASE_HEX,
1130               NULL, 0, NULL, HFILL }},
1131         { &hf_usb_com_descriptor_acm_capabilities_reserved,
1132             { "Reserved", "usbcom.descriptor.acm.capabilities.reserved", FT_UINT8, BASE_HEX,
1133               NULL, 0xF0, NULL, HFILL }},
1134         { &hf_usb_com_descriptor_acm_capabilities_network_connection,
1135             { "Network_Connection", "usbcom.descriptor.acm.capabilities.network_connection", FT_BOOLEAN, 8,
1136               TFS(&tfs_supported_not_supported), 0x08, NULL, HFILL }},
1137         { &hf_usb_com_descriptor_acm_capabilities_send_break,
1138             { "Send_Break", "usbcom.descriptor.acm.capabilities.send_break", FT_BOOLEAN, 8,
1139               TFS(&tfs_supported_not_supported), 0x04, NULL, HFILL }},
1140         { &hf_usb_com_descriptor_acm_capabilities_line_and_state,
1141             { "Line Requests and State Notification", "usbcom.descriptor.acm.capabilities.line_and_state", FT_BOOLEAN, 8,
1142               TFS(&tfs_supported_not_supported), 0x02, NULL, HFILL }},
1143         { &hf_usb_com_descriptor_acm_capabilities_comm_features,
1144             { "Comm Features Combinations", "usbcom.descriptor.acm.capabilities.comm_features", FT_BOOLEAN, 8,
1145               TFS(&tfs_supported_not_supported), 0x01, NULL, HFILL }},
1146         { &hf_usb_com_descriptor_control_interface,
1147             { "Control Interface", "usbcom.descriptor.control_interface", FT_UINT8, BASE_HEX,
1148               NULL, 0, NULL, HFILL }},
1149         { &hf_usb_com_descriptor_subordinate_interface,
1150             { "Subordinate Interface", "usbcom.descriptor.subordinate_interface", FT_UINT8, BASE_HEX,
1151               NULL, 0, NULL, HFILL }},
1152         { &hf_usb_com_descriptor_cm_capabilities_reserved,
1153             { "Reserved", "usbcom.descriptor.cm.capabilities.reserved", FT_UINT8, BASE_HEX,
1154               NULL, 0xFC, NULL, HFILL }},
1155         { &hf_usb_com_descriptor_cm_capabilities_call_management_over_data_class_interface,
1156             { "Call Management over Data Class Interface", "usbcom.descriptor.cm.capabilities.call_management_over_data_class_interface", FT_BOOLEAN, 8,
1157               TFS(&tfs_supported_not_supported), 0x02, NULL, HFILL }},
1158         { &hf_usb_com_descriptor_cm_capabilities_call_management,
1159             { "Call Management", "usbcom.descriptor.cm.capabilities.call_management", FT_BOOLEAN, 8,
1160               TFS(&tfs_supported_not_supported), 0x01, NULL, HFILL }},
1161         { &hf_usb_com_descriptor_cm_data_interface,
1162             { "Data Interface", "usbcom.descriptor.cm.data_interface", FT_UINT8, BASE_HEX,
1163               NULL, 0, NULL, HFILL }},
1164         { &hf_usb_com_descriptor_ecm_mac_address,
1165             { "MAC Address", "usbcom.descriptor.ecm.mac_address", FT_UINT8, BASE_HEX,
1166               NULL, 0, NULL, HFILL }},
1167         { &hf_usb_com_descriptor_ecm_eth_stats,
1168             { "Ethernet Statistics", "usbcom.descriptor.ecm.eth_stats", FT_UINT32, BASE_HEX,
1169               NULL, 0, NULL, HFILL }},
1170         { &hf_usb_com_descriptor_ecm_eth_stats_reserved,
1171             { "Reserved", "usbcom.descriptor.ecm.eth_stats.reserved", FT_UINT32, BASE_HEX,
1172               NULL, 0xe0000000, NULL, HFILL }},
1173         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_late_collisions,
1174             { "XMIT Late Collisions", "usbcom.descriptor.ecm.eth_stats.xmit_late_collisions", FT_BOOLEAN, 32,
1175               TFS(&tfs_supported_not_supported), 0x10000000, NULL, HFILL }},
1176         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_times_crs_lost,
1177             { "XMIT TImes CRS Lost", "usbcom.descriptor.ecm.eth_stats.xmit_times_crs_lost", FT_BOOLEAN, 32,
1178               TFS(&tfs_supported_not_supported), 0x08000000, NULL, HFILL }},
1179         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_heartbeat_failure,
1180             { "XMIT Heartbeat Failure", "usbcom.descriptor.ecm.eth_stats.xmit_heartbeat_failure", FT_BOOLEAN, 32,
1181               TFS(&tfs_supported_not_supported), 0x04000000, NULL, HFILL }},
1182         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_underrun,
1183             { "XMIT Underrun", "usbcom.descriptor.ecm.eth_stats.xmit_underrun", FT_BOOLEAN, 32,
1184               TFS(&tfs_supported_not_supported), 0x02000000, NULL, HFILL }},
1185         { &hf_usb_com_descriptor_ecm_eth_stats_rcv_overrun,
1186             { "RCV Overrun", "usbcom.descriptor.ecm.eth_stats.rcv_overrun", FT_BOOLEAN, 32,
1187               TFS(&tfs_supported_not_supported), 0x01000000, NULL, HFILL }},
1188         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_max_collisions,
1189             { "XMIT Max Collisions", "usbcom.descriptor.ecm.eth_stats.xmit_max_collisions", FT_BOOLEAN, 32,
1190               TFS(&tfs_supported_not_supported), 0x00800000, NULL, HFILL }},
1191         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_deferred,
1192             { "XMIT Deferred", "usbcom.descriptor.ecm.eth_stats.xmit_deferred", FT_BOOLEAN, 32,
1193               TFS(&tfs_supported_not_supported), 0x00400000, NULL, HFILL }},
1194         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_more_collisions,
1195             { "XMIT More Collisions", "usbcom.descriptor.ecm.eth_stats.xmit_more_collisions", FT_BOOLEAN, 32,
1196               TFS(&tfs_supported_not_supported), 0x00200000, NULL, HFILL }},
1197         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_one_collision,
1198             { "XMIT One Collision", "usbcom.descriptor.ecm.eth_stats.xmit_one_collision", FT_BOOLEAN, 32,
1199               TFS(&tfs_supported_not_supported), 0x00100000, NULL, HFILL }},
1200         { &hf_usb_com_descriptor_ecm_eth_stats_rcv_error_alignment,
1201             { "RCV Error Alignment", "usbcom.descriptor.ecm.eth_stats.rcv_error_alignment", FT_BOOLEAN, 32,
1202               TFS(&tfs_supported_not_supported), 0x00080000, NULL, HFILL }},
1203         { &hf_usb_com_descriptor_ecm_eth_stats_transmit_queue_length,
1204             { "Transmit Queue Length", "usbcom.descriptor.ecm.eth_stats.transmit_queue_length", FT_BOOLEAN, 32,
1205               TFS(&tfs_supported_not_supported), 0x00040000, NULL, HFILL }},
1206         { &hf_usb_com_descriptor_ecm_eth_stats_rcv_crc_error,
1207             { "RCV CRC Error", "usbcom.descriptor.ecm.eth_stats.rcv_crc_error", FT_BOOLEAN, 32,
1208               TFS(&tfs_supported_not_supported), 0x00020000, NULL, HFILL }},
1209         { &hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_rcv,
1210             { "Broadcast Frames RCV", "usbcom.descriptor.ecm.eth_stats.broadcast_frames_rcv", FT_BOOLEAN, 32,
1211               TFS(&tfs_supported_not_supported), 0x00010000, NULL, HFILL }},
1212         { &hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_rcv,
1213             { "Broadcast Bytes RCV", "usbcom.descriptor.ecm.eth_stats.broadcast_bytes_rcv", FT_BOOLEAN, 32,
1214               TFS(&tfs_supported_not_supported), 0x00008000, NULL, HFILL }},
1215         { &hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_rcv,
1216             { "Multicast Frames RCV", "usbcom.descriptor.ecm.eth_stats.multicast_frames_rcv", FT_BOOLEAN, 32,
1217               TFS(&tfs_supported_not_supported), 0x00004000, NULL, HFILL }},
1218         { &hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_rcv,
1219             { "Multicast Bytes RCV", "usbcom.descriptor.ecm.eth_stats.multicast_bytes_rcv", FT_BOOLEAN, 32,
1220               TFS(&tfs_supported_not_supported), 0x00002000, NULL, HFILL }},
1221         { &hf_usb_com_descriptor_ecm_eth_stats_directed_frames_rcv,
1222             { "Directed Frames RCV", "usbcom.descriptor.ecm.eth_stats.directed_frames_rcv", FT_BOOLEAN, 32,
1223               TFS(&tfs_supported_not_supported), 0x00001000, NULL, HFILL }},
1224         { &hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_rcv,
1225             { "Directed Bytes RCV", "usbcom.descriptor.ecm.eth_stats.directed_bytes_rcv", FT_BOOLEAN, 32,
1226               TFS(&tfs_supported_not_supported), 0x00000800, NULL, HFILL }},
1227         { &hf_usb_com_descriptor_ecm_eth_stats_broadcast_frames_xmit,
1228             { "Broadcast Frames XMIT", "usbcom.descriptor.ecm.eth_stats.broadcast_frames_xmit", FT_BOOLEAN, 32,
1229               TFS(&tfs_supported_not_supported), 0x00000400, NULL, HFILL }},
1230         { &hf_usb_com_descriptor_ecm_eth_stats_broadcast_bytes_xmit,
1231             { "Broadcast Bytes XMIT", "usbcom.descriptor.ecm.eth_stats.broadcast_bytes_xmit", FT_BOOLEAN, 32,
1232               TFS(&tfs_supported_not_supported), 0x00000200, NULL, HFILL }},
1233         { &hf_usb_com_descriptor_ecm_eth_stats_multicast_frames_xmit,
1234             { "Multicast Frames XMIT", "usbcom.descriptor.ecm.eth_stats.multicast_frames_xmit", FT_BOOLEAN, 32,
1235               TFS(&tfs_supported_not_supported), 0x00000100, NULL, HFILL }},
1236         { &hf_usb_com_descriptor_ecm_eth_stats_multicast_bytes_xmit,
1237             { "Multicast Bytes XMIT", "usbcom.descriptor.ecm.eth_stats.multicast_bytes_xmit", FT_BOOLEAN, 32,
1238               TFS(&tfs_supported_not_supported), 0x00000080, NULL, HFILL }},
1239         { &hf_usb_com_descriptor_ecm_eth_stats_directed_frames_xmit,
1240             { "Directed Frames XMIT", "usbcom.descriptor.ecm.eth_stats.directed_frames_xmit", FT_BOOLEAN, 32,
1241               TFS(&tfs_supported_not_supported), 0x00000040, NULL, HFILL }},
1242         { &hf_usb_com_descriptor_ecm_eth_stats_directed_bytes_xmit,
1243             { "Directed Bytes XMIT", "usbcom.descriptor.ecm.eth_stats.directed_bytes_xmit", FT_BOOLEAN, 32,
1244               TFS(&tfs_supported_not_supported), 0x00000020, NULL, HFILL }},
1245         { &hf_usb_com_descriptor_ecm_eth_stats_rcv_no_buffer,
1246             { "RCV No Buffer", "usbcom.descriptor.ecm.eth_stats.rcv_no_buffer", FT_BOOLEAN, 32,
1247               TFS(&tfs_supported_not_supported), 0x00000010, NULL, HFILL }},
1248         { &hf_usb_com_descriptor_ecm_eth_stats_rcv_error,
1249             { "RCV Error", "usbcom.descriptor.ecm.eth_stats.rcv_error", FT_BOOLEAN, 32,
1250               TFS(&tfs_supported_not_supported), 0x00000008, NULL, HFILL }},
1251         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_error,
1252             { "XMIT Error", "usbcom.descriptor.ecm.eth_stats.xmit_error", FT_BOOLEAN, 32,
1253               TFS(&tfs_supported_not_supported), 0x00000004, NULL, HFILL }},
1254         { &hf_usb_com_descriptor_ecm_eth_stats_rvc_ok,
1255             { "RCV OK", "usbcom.descriptor.ecm.eth_stats.rvc_ok", FT_BOOLEAN, 32,
1256               TFS(&tfs_supported_not_supported), 0x00000002, NULL, HFILL }},
1257         { &hf_usb_com_descriptor_ecm_eth_stats_xmit_ok,
1258             { "XMIT OK", "usbcom.descriptor.ecm.eth_stats.xmit_ok", FT_BOOLEAN, 32,
1259               TFS(&tfs_supported_not_supported), 0x00000001, NULL, HFILL }},
1260         { &hf_usb_com_descriptor_ecm_max_segment_size,
1261             { "Max Segment Size", "usbcom.descriptor.ecm.max_segment_size", FT_UINT16, BASE_DEC,
1262               NULL, 0, NULL, HFILL }},
1263         { &hf_usb_com_descriptor_ecm_nb_mc_filters,
1264             { "Number MC Filters", "usbcom.descriptor.ecm.nb_mc_filters", FT_UINT16, BASE_HEX,
1265               NULL, 0, NULL, HFILL }},
1266         { &hf_usb_com_descriptor_ecm_nb_mc_filters_mc_address_filtering,
1267             { "Multicast Address Filtering", "usbcom.descriptor.ecm.nb_mc_filters.mc_address_filtering", FT_BOOLEAN, 16,
1268               TFS(&usb_com_ecm_mc_address_filtering), 0x8000, NULL, HFILL }},
1269         { &hf_usb_com_descriptor_ecm_nb_mc_filters_nb_filters_supported,
1270             { "Number of Multicast Address Filters Supported", "usbcom.descriptor.ecm.nb_mc_filters.nb_filters_supported", FT_UINT16, BASE_DEC,
1271               NULL, 0x7fff, NULL, HFILL }},
1272         { &hf_usb_com_descriptor_ecm_nb_power_filters,
1273             { "Number Power Filters", "usbcom.descriptor.ecm.nb_power_filters", FT_UINT8, BASE_DEC,
1274               NULL, 0, NULL, HFILL }},
1275         { &hf_usb_com_interrupt_request_type,
1276             { "Request Type", "usbcom.interrupt.request_type", FT_UINT8, BASE_HEX,
1277               NULL, 0, NULL, HFILL }},
1278         { &hf_usb_com_interrupt_notif_code,
1279             { "Notification Code", "usbcom.interrupt.notification_code", FT_UINT8, BASE_HEX,
1280               VALS(usb_com_interrupt_notif_code_vals), 0, NULL, HFILL }},
1281         { &hf_usb_com_interrupt_value,
1282             { "Value", "usbcom.interrupt.value", FT_UINT16, BASE_HEX,
1283               NULL, 0, NULL, HFILL }},
1284         { &hf_usb_com_interrupt_value_nw_conn,
1285             { "Value", "usbcom.interrupt.value", FT_UINT16, BASE_HEX,
1286               VALS(usb_com_interrupt_value_nw_conn_vals), 0, NULL, HFILL }},
1287         { &hf_usb_com_interrupt_index,
1288             { "Index", "usbcom.interrupt.index", FT_UINT16, BASE_DEC,
1289               NULL, 0, NULL, HFILL }},
1290         { &hf_usb_com_interrupt_length,
1291             { "Length", "usbcom.interrupt.length", FT_UINT16, BASE_DEC,
1292               NULL, 0, NULL, HFILL }},
1293         { &hf_usb_com_interrupt_dl_bitrate,
1294             { "DL Bitrate", "usbcom.interrupt.conn_speed_change.dl_bitrate", FT_UINT32, BASE_DEC|BASE_UNIT_STRING,
1295               UNS(&units_bit_sec), 0, NULL, HFILL }},
1296         { &hf_usb_com_interrupt_ul_bitrate,
1297             { "UL Bitrate", "usbcom.interrupt.conn_speed_change.ul_bitrate", FT_UINT32, BASE_DEC|BASE_UNIT_STRING,
1298               UNS(&units_bit_sec), 0, NULL, HFILL }},
1299         { &hf_usb_com_interrupt_payload,
1300             { "Payload", "usbcom.interrupt.payload", FT_BYTES, BASE_NONE,
1301               NULL, 0, NULL, HFILL }},
1302         { &hf_usb_com_data_stream,
1303             { "Stream index", "usbcom.data.stream", FT_UINT32, BASE_DEC,
1304               NULL, 0, NULL, HFILL }},
1305         { &hf_usb_com_data_in_payload,
1306             { "IN payload", "usbcom.data.in_payload", FT_BYTES, BASE_NONE,
1307               NULL, 0, NULL, HFILL }},
1308         { &hf_usb_com_data_out_payload,
1309             { "OUT payload", "usbcom.data.out_payload", FT_BYTES, BASE_NONE,
1310               NULL, 0, NULL, HFILL }},
1311     };
1312
1313     static int *usb_com_ett[] = {
1314         &ett_usb_com,
1315         &ett_usb_com_capabilities,
1316         &ett_usb_com_bitmap,
1317         &ett_usb_com_descriptor_ecm_eth_stats,
1318         &ett_usb_com_descriptor_ecm_nb_mc_filters
1319     };
1320
1321     static ei_register_info ei[] = {
1322         { &ei_unexpected_controlling_iface, { "usbcom.descriptor.control_interface.unexpected_iface", PI_MALFORMED, PI_ERROR, "Unexpected controlling interface index (report to wireshark.org)", EXPFILL }},
1323     };
1324
1325     expert_module_t* expert_usb_com;
1326
1327     controlling_ifaces = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
1328
1329     proto_usb_com = proto_register_protocol("USB Communications and CDC Control", "USBCOM", "usbcom");
1330     proto_register_field_array(proto_usb_com, hf, array_length(hf));
1331     proto_register_subtree_array(usb_com_ett, array_length(usb_com_ett));
1332
1333     usb_com_descriptor_handle = register_dissector("usbcom.descriptor", dissect_usb_com_descriptor, proto_usb_com);
1334     usb_com_control_handle = register_dissector("usbcom.control", dissect_usb_com_control, proto_usb_com);
1335     usb_com_bulk_handle = register_dissector("usbcom.bulk", dissect_usb_com_bulk, proto_usb_com);
1336     usb_com_interrupt_handle = register_dissector("usbcom.interrupt", dissect_usb_com_interrupt, proto_usb_com);
1337
1338     expert_usb_com = expert_register_protocol(proto_usb_com);
1339     expert_register_field_array(expert_usb_com, ei, array_length(ei));
1340
1341     register_cleanup_routine(usb_com_cleanup_data);
1342
1343     cdc_data_follow_tap = register_tap("cdc_data_follow");
1344     register_follow_stream(proto_usb_com, "cdc_data_follow", cdc_data_follow_conv_filter, cdc_data_follow_index_filter,
1345                            cdc_data_follow_address_filter, cdc_data_port_to_display, follow_cdc_data_tap_listener,
1346                            get_cdc_data_stream_count, NULL);
1347 }
1348
1349 void
1350 proto_reg_handoff_usb_com(void)
1351 {
1352     dissector_add_uint("usb.descriptor", IF_CLASS_COMMUNICATIONS, usb_com_descriptor_handle);
1353     dissector_add_uint("usb.control", IF_CLASS_COMMUNICATIONS, usb_com_control_handle);
1354     dissector_add_uint("usb.bulk", IF_CLASS_CDC_DATA, usb_com_bulk_handle);
1355     dissector_add_uint("usb.interrupt", IF_CLASS_COMMUNICATIONS, usb_com_interrupt_handle);
1356     mbim_control_handle = find_dissector_add_dependency("mbim.control", proto_usb_com);
1357     mbim_descriptor_handle = find_dissector_add_dependency("mbim.descriptor", proto_usb_com);
1358     mbim_bulk_handle = find_dissector_add_dependency("mbim.bulk", proto_usb_com);
1359     eth_withoutfcs_handle = find_dissector_add_dependency("eth_withoutfcs", proto_usb_com);
1360
1361     proto_usb = proto_get_id_by_filter_name("usb");
1362 }
1363
1364 /*
1365  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
1366  *
1367  * Local variables:
1368  * c-basic-offset: 4
1369  * tab-width: 8
1370  * indent-tabs-mode: nil
1371  * End:
1372  *
1373  * vi: set shiftwidth=4 tabstop=8 expandtab:
1374  * :indentSize=4:tabSize=8:noTabs=true:
1375  */