/* isi-ss.c * Dissector for ISI's Subscriber Services resource * Copyright 2010, Sebastian Reichel * Copyright 2010, Tyson Key * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include "packet-isi.h" #include "isi-ss.h" #include static const value_string isi_ss_message_id[] = { {0x00, "SS_SERVICE_REQ"}, {0x01, "SS_SERVICE_COMPLETED_RESP"}, {0x02, "SS_SERVICE_FAILED_RESP"}, {0x03, "SS_SERVICE_NOT_SUPPORTED_RESP"}, {0x04, "SS_GSM_USSD_SEND_REQ"}, {0x05, "SS_GSM_USSD_SEND_RESP"}, {0x06, "SS_GSM_USSD_RECEIVE_IND"}, {0x09, "SS_STATUS_IND"}, {0x10, "SS_SERVICE_COMPLETED_IND"}, {0x11, "SS_CANCEL_REQ"}, {0x12, "SS_CANCEL_RESP"}, {0x15, "SS_RELEASE_REQ"}, {0x16, "SS_RELEASE_RESP"}, {0xF0, "COMMON_MESSAGE"}, }; static const value_string isi_ss_ussd_type[] = { {0x01, "SS_GSM_USSD_MT_REPLY"}, {0x02, "SS_GSM_USSD_COMMAND"}, {0x03, "SS_GSM_USSD_REQUEST"}, {0x04, "SS_GSM_USSD_NOTIFY"}, {0x05, "SS_GSM_USSD_END"}, }; static const value_string isi_ss_subblock[] = { {0x00, "SS_FORWARDING"}, {0x01, "SS_STATUS_RESULT"}, {0x03, "SS_GSM_PASSWORD"}, {0x04, "SS_GSM_FORWARDING_INFO"}, {0x05, "SS_GSM_FORWARDING_FEATURE"}, {0x08, "SS_GSM_DATA"}, {0x09, "SS_GSM_BSC_INFO"}, {0x0B, "SS_GSM_PASSWORD_INFO"}, {0x0D, "SS_GSM_INDICATE_PASSWORD_ERROR"}, {0x0E, "SS_GSM_INDICATE_ERROR"}, {0x2F, "SS_GSM_ADDITIONAL_INFO"}, {0x32, "SS_GSM_USSD_STRING"}, }; static const value_string isi_ss_operation[] = { {0x01, "SS_ACTIVATION"}, {0x02, "SS_DEACTIVATION"}, {0x03, "SS_REGISTRATION"}, {0x04, "SS_ERASURE"}, {0x05, "SS_INTERROGATION"}, {0x06, "SS_GSM_PASSWORD_REGISTRATION"}, }; static const value_string isi_ss_service_code[] = { {0x00, "SS_ALL_TELE_AND_BEARER"}, {0x0A, "SS_GSM_ALL_TELE"}, {0x0B, "SS_GSM_TELEPHONY"}, {0x0C, "SS_GSM_ALL_DATA_TELE"}, {0x0D, "SS_GSM_FACSIMILE"}, {0x10, "SS_GSM_SMS"}, {0x00, NULL} }; static const value_string isi_ss_status_indication[] = { {0x00, "SS_STATUS_REQUEST_SERVICE_START"}, {0x01, "SS_STATUS_REQUEST_SERVICE_STOP"}, {0x02, "SS_GSM_STATUS_REQUEST_USSD_START"}, {0x03, "SS_GSM_STATUS_REQUEST_USSD_STOP"}, {0x00, NULL} }; static const value_string isi_ss_common_message_id[] = { {0x01, "COMM_SERVICE_NOT_IDENTIFIED_RESP"}, {0x12, "COMM_ISI_VERSION_GET_REQ"}, {0x13, "COMM_ISI_VERSION_GET_RESP"}, {0x14, "COMM_ISA_ENTITY_NOT_REACHABLE_RESP"}, }; static dissector_handle_t isi_ss_handle; static void dissect_isi_ss(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree); static gint32 hf_isi_ss_message_id = -1; static gint32 hf_isi_ss_ussd_type = -1; static gint32 hf_isi_ss_subblock_count = -1; static gint32 hf_isi_ss_subblock = -1; static gint32 hf_isi_ss_operation = -1; static gint32 hf_isi_ss_service_code = -1; static gint32 hf_isi_ss_status_indication = -1; static gint32 hf_isi_ss_ussd_length = -1; static gint32 hf_isi_ss_common_message_id = -1; void proto_reg_handoff_isi_ss(void) { static gboolean initialized=FALSE; if (!initialized) { isi_ss_handle = create_dissector_handle(dissect_isi_ss, proto_isi); dissector_add_uint("isi.resource", 0x06, isi_ss_handle); } } void proto_register_isi_ss(void) { static hf_register_info hf[] = { { &hf_isi_ss_message_id, { "Message ID", "isi.ss.msg_id", FT_UINT8, BASE_HEX, isi_ss_message_id, 0x0, "Message ID", HFILL }}, { &hf_isi_ss_ussd_type, { "USSD Type", "isi.ss.ussd.type", FT_UINT8, BASE_HEX, isi_ss_ussd_type, 0x0, "USSD Type", HFILL }}, { &hf_isi_ss_subblock_count, { "Subblock Count", "isi.ss.subblock_count", FT_UINT8, BASE_DEC, NULL, 0x0, "Subblock Count", HFILL }}, { &hf_isi_ss_subblock, { "Subblock", "isi.ss.subblock", FT_UINT8, BASE_HEX, isi_ss_subblock, 0x0, "Subblock", HFILL }}, { &hf_isi_ss_operation, { "Operation", "isi.ss.operation", FT_UINT8, BASE_HEX, isi_ss_operation, 0x0, "Operation", HFILL }}, { &hf_isi_ss_service_code, { "Service Code", "isi.ss.service_code", FT_UINT8, BASE_HEX, isi_ss_service_code, 0x0, "Service Code", HFILL }}, { &hf_isi_ss_status_indication, { "Status Indication", "isi.ss.status_indication", FT_UINT8, BASE_HEX, isi_ss_status_indication, 0x0, "Status Indication", HFILL }}, { &hf_isi_ss_ussd_length, { "Length", "isi.ss.ussd.length", FT_UINT8, BASE_DEC, NULL, 0x0, "Length", HFILL }}, { &hf_isi_ss_common_message_id, { "Common Message ID", "isi.ss.common.msg_id", FT_UINT8, BASE_HEX, isi_ss_common_message_id, 0x0, "Common Message ID", HFILL }}, }; proto_register_field_array(proto_isi, hf, array_length(hf)); register_dissector("isi.ss", dissect_isi_ss, proto_isi); } static void dissect_isi_ss(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) { proto_item *item = NULL; proto_tree *tree = NULL; guint8 cmd, code; if(isitree) { tree = proto_tree_add_subtree_format(isitree, tvb, 0, -1, ett_isi_msg, &item, "Payload"); proto_tree_add_item(tree, hf_isi_ss_message_id, tvb, 0, 1, FALSE); cmd = tvb_get_guint8(tvb, 0); switch(cmd) { case 0x00: /* SS_SERVICE_REQ */ proto_tree_add_item(tree, hf_isi_ss_operation, tvb, 1, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_service_code, tvb, 2, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x05: col_set_str(pinfo->cinfo, COL_INFO, "Service Request: Interrogation"); break; case 0x06: col_set_str(pinfo->cinfo, COL_INFO, "Service Request: GSM Password Registration"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "Service Request"); break; } break; case 0x01: /* SS_SERVICE_COMPLETED_RESP */ proto_tree_add_item(tree, hf_isi_ss_operation, tvb, 1, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_service_code, tvb, 2, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x05: col_set_str(pinfo->cinfo, COL_INFO, "Service Completed Response: Interrogation"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "Service Completed Response"); break; } break; case 0x02: /* SS_SERVICE_FAILED_RESP */ //proto_tree_add_item(tree, hf_isi_ss_service_type, tvb, 1, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { //case 0x2F: // col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN"); // break; default: col_set_str(pinfo->cinfo, COL_INFO, "Service Failed Response"); break; } break; case 0x04: /* SS_GSM_USSD_SEND_REQ */ proto_tree_add_item(tree, hf_isi_ss_ussd_type, tvb, 1, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_subblock_count, tvb, 2, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x02: //SS_GSM_USSD_COMMAND proto_tree_add_item(tree, hf_isi_ss_subblock, tvb, 3, 1, FALSE); col_set_str(pinfo->cinfo, COL_INFO, "GSM USSD Send Command Request"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "GSM USSD Message Send Request"); break; } break; case 0x05: /* SS_GSM_USSD_SEND_RESP */ //proto_tree_add_item(tree, hf_isi_ss_service_type, tvb, 1, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { //case 0x2F: // col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN"); // break; default: col_set_str(pinfo->cinfo, COL_INFO, "GSM USSD Message Send Response"); break; } break; case 0x06: /* SS_GSM_USSD_RECEIVE_IND */ //An unknown Encoding Information byte precedes - see 3GPP TS 23.038 chapter 5 proto_tree_add_item(tree, hf_isi_ss_ussd_type, tvb, 2, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_ussd_length, tvb, 3, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x04: col_set_str(pinfo->cinfo, COL_INFO, "GSM USSD Message Received Notification"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "GSM USSD Message Received Indication"); break; } break; case 0x09: /* SS_STATUS_IND */ proto_tree_add_item(tree, hf_isi_ss_status_indication, tvb, 1, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_subblock_count, tvb, 2, 1, FALSE); //proto_tree_add_item(tree, hf_isi_ss_subblock, tvb, 3, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x00: col_set_str(pinfo->cinfo, COL_INFO, "Status Indication: Request Service Start"); break; case 0x01: col_set_str(pinfo->cinfo, COL_INFO, "Status Indication: Request Service Stop"); break; case 0x02: col_set_str(pinfo->cinfo, COL_INFO, "Status Indication: Request USSD Start"); break; case 0x03: col_set_str(pinfo->cinfo, COL_INFO, "Status Indication: Request USSD Stop"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "Status Indication"); break; } break; case 0x10: /* SS_SERVICE_COMPLETED_IND */ proto_tree_add_item(tree, hf_isi_ss_operation, tvb, 1, 1, FALSE); proto_tree_add_item(tree, hf_isi_ss_service_code, tvb, 2, 1, FALSE); code = tvb_get_guint8(tvb, 1); switch(code) { case 0x05: col_set_str(pinfo->cinfo, COL_INFO, "Service Completed Indication: Interrogation"); break; default: col_set_str(pinfo->cinfo, COL_INFO, "Service Completed Indication"); break; } break; case 0xF0: /* COMMON_MESSAGE */ dissect_isi_common("Subscriber Service", tvb, pinfo, tree); break; default: col_set_str(pinfo->cinfo, COL_INFO, "Unknown type"); break; } } }