/* packet-dvbci.c * Routines for DVB-CI (Common Interface) dissection * Copyright 2011-2012, Martin Kaiser * * $Id$ * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* This dissector supports DVB-CI as defined in EN50221 and * CI+ (www.ci-plus.com). * For more details, see http://wiki.wireshark.org/DVB-CI. * * The pcap input format for this dissector is documented at * http://www.kaiser.cx/pcap-dvbci.html. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #include #include #include #include #include #include #include "packet-ber.h" #ifdef HAVE_LIBGCRYPT #include #endif #define AES_BLOCK_LEN 16 #define AES_KEY_LEN 16 /* event byte in the pseudo-header */ #define DATA_CAM_TO_HOST 0xFF #define DATA_HOST_TO_CAM 0xFE #define CIS_READ 0xFD #define COR_WRITE 0xFC #define HW_EVT 0xFB #define IS_DATA_TRANSFER(e) (e==DATA_CAM_TO_HOST || e==DATA_HOST_TO_CAM) /* for [as]pdu_info_t when the message is allowed in either direction */ #define DIRECTION_ANY 0x0 /* source/destination address field */ #define ADDR_HOST "Host" #define ADDR_CAM "CAM" /* hardware event */ #define CAM_IN 0x01 #define CAM_OUT 0x02 #define POWER_ON 0x03 #define POWER_OFF 0x04 #define TS_ROUTE 0x05 #define TS_BYPASS 0x06 #define RESET_H 0x07 #define RESET_L 0x08 #define READY_H 0x09 #define READY_L 0x0A /* Card Information Structure */ #define CISTPL_NO_LINK 0x14 #define CISTPL_VERS_1 0x15 #define CISTPL_CONFIG 0x1A #define CISTPL_CFTABLE_ENTRY 0x1B #define CISTPL_DEVICE_OC 0x1C #define CISTPL_DEVICE_OA 0x1D #define CISTPL_MANFID 0x20 #define CISTPL_END 0xFF /* link layer */ #define ML_MORE 0x80 #define ML_LAST 0x00 /* sequence id for reassembly of fragmented lpdus this can be an arbitrary constant value since lpdus must arrive in order */ #define SEQ_ID_LINK_LAYER 4 /* the same goes for the transport layer */ #define SEQ_ID_TRANSPORT_LAYER 7 /* transport layer */ #define NO_TAG 0x00 #define T_SB 0x80 #define T_RCV 0x81 #define T_CREATE_T_C 0x82 #define T_C_T_C_REPLY 0x83 #define T_DELETE_T_C 0x84 #define T_D_T_C_REPLY 0x85 #define T_REQUEST_T_C 0x86 #define T_NEW_T_C 0x87 #define T_T_C_ERROR 0x88 #define T_DATA_LAST 0xA0 #define T_DATA_MORE 0xA1 #define SB_VAL_MSG_AVAILABLE 0x80 #define SB_VAL_NO_MSG_AVAILABLE 0x00 /* session layer */ #define T_SESSION_NUMBER 0x90 #define T_OPEN_SESSION_REQUEST 0x91 #define T_OPEN_SESSION_RESPONSE 0x92 #define T_CREATE_SESSION 0x93 #define T_CREATE_SESSION_RESPONSE 0x94 #define T_CLOSE_SESSION_REQUEST 0x95 #define T_CLOSE_SESSION_RESPONSE 0x96 /* status for open/create session */ #define SESS_OPENED 0x00 #define SESS_NOT_OPENED_RES_NON_EXIST 0xF0 #define SESS_NOT_OPENED_RES_UNAVAIL 0xF1 #define SESS_NOT_OPENED_RES_VER_LOWER 0xF2 #define SESS_NOT_OPENED_RES_BUSY 0xF3 /* status for close session */ #define SESS_CLOSED 0x00 #define SESS_NB_NOT_ALLOC 0xF0 /* resource id */ #define RES_ID_TYPE_MASK 0xC0000000 #define RES_CLASS_MASK 0x3FFF0000 #define RES_TYPE_MASK 0x0000FFC0 #define RES_VER_MASK 0x0000003F /* resource class */ #define RES_CLASS_RM 0x01 #define RES_CLASS_AP 0x02 #define RES_CLASS_CA 0x03 #define RES_CLASS_AUT 0x10 #define RES_CLASS_HC 0x20 #define RES_CLASS_DT 0x24 #define RES_CLASS_MMI 0x40 #define RES_CLASS_AMI 0x41 #define RES_CLASS_LSC 0x60 #define RES_CLASS_CC 0x8C #define RES_CLASS_HLC 0x8D #define RES_CLASS_CUP 0x8E #define RES_CLASS_OPP 0x8F #define RES_CLASS_SAS 0x96 #define RES_ID_LEN 4 /* bytes */ #define RES_CLASS(_res_id) (_res_id & RES_CLASS_MASK) >> 16 #define RES_VER(_res_id) (_res_id & RES_VER_MASK) /* appinfo resource */ #define APP_TYPE_CA 0x1 #define APP_TYPE_EPG 0x2 #define DATA_RATE_72 0x0 #define DATA_RATE_96 0x1 /* ca resource */ #define LIST_MGMT_MORE 0x0 #define LIST_MGMT_FIRST 0x1 #define LIST_MGMT_LAST 0x2 #define LIST_MGMT_ONLY 0x3 #define LIST_MGMT_ADD 0x4 #define LIST_MGMT_UPDATE 0x5 #define CMD_ID_OK_DESCR 0x1 #define CMD_ID_OK_MMI 0x2 #define CMD_ID_QUERY 0x3 #define CMD_ID_NOT_SELECTED 0x4 #define CA_DESC_TAG 0x9 #define CA_ENAB_DESC_OK 0x01 #define CA_ENAB_DESC_OK_PURCHASE 0x02 #define CA_ENAB_DESC_OK_TECH 0x03 #define CA_ENAB_DESC_NG_ENTITLEMENT 0x71 #define CA_ENAB_DESC_NG_TECH 0x73 /* host control resource */ #define HC_STAT_OK 0x0 #define HC_STAT_ERR_DLVRY 0x1 #define HC_STAT_ERR_LOCK 0x2 #define HC_STAT_ERR_BUSY 0x3 #define HC_STAT_ERR_PARAM 0x4 #define HC_STAT_ERR_NOT_FOUND 0x5 #define HC_STAT_ERR_UNKNOWN 0x6 /* mmi resource */ #define CLOSE_MMI_CMD_ID_IMMEDIATE 0x0 #define CLOSE_MMI_CMD_ID_DELAY 0x1 /* only commands and parameters for high-level mmi are supported */ #define DISP_CMD_SET_MMI_MODE 1 #define DISP_CMD_GET_DISP_TBL 2 #define DISP_CMD_GET_INP_TBL 3 #define MMI_MODE_HIGH 1 #define DISP_REP_ID_MMI_MODE_ACK 0x01 #define DISP_REP_ID_DISP_CHAR_TBL 0x02 #define DISP_REP_ID_INP_CHAR_TBL 0x03 #define DISP_REP_ID_UNKNOWN_CMD 0xF0 #define DISP_REP_ID_UNKNOWN_MMI_MODE 0xF1 #define DISP_REP_ID_UNKNOWN_CHAR_TBL 0xF2 #define VISIBLE_ANS 0 #define BLIND_ANS 1 #define ANSW_ID_CANCEL 0x00 #define ANSW_ID_ANSWER 0x01 /* used for answer_text_length, choice_nb and item_nb */ #define NB_UNKNOWN 0xFF /* character tables, DVB-SI spec annex A.2 */ #define CHAR_TBL_8859_5 0x01 #define CHAR_TBL_8859_6 0x02 #define CHAR_TBL_8859_7 0x03 #define CHAR_TBL_8859_8 0x04 #define CHAR_TBL_8859_9 0x05 #define CHAR_TBL_8859_10 0x06 #define CHAR_TBL_8859_11 0x07 #define CHAR_TBL_8859_13 0x09 #define CHAR_TBL_8859_14 0x0A #define CHAR_TBL_8859_15 0x0B #define CHAR_TBL_MULTI_BYTE 0x10 #define CHAR_TBL_ENC_TYPE_ID 0x1F /* control codes for texts, DVB-SI spec annex A.1 */ #define TEXT_CTRL_EMPH_ON 0x86 #define TEXT_CTRL_EMPH_OFF 0x87 #define TEXT_CTRL_CRLF 0x8A /* cam upgrade resource */ #define CUP_DELAYED 0x0 #define CUP_IMMEDIATE 0x1 #define CUP_ANS_NO 0x0 #define CUP_ANS_YES 0x1 #define CUP_ANS_ASK 0x2 #define CUP_RESET_PCMCIA 0x0 #define CUP_RESET_CMDIF 0x1 #define CUP_RESET_NONE 0x2 /* content control resource */ #define CC_ID_HOST_ID 0x05 #define CC_ID_CICAM_ID 0x06 #define CC_ID_HOST_BRAND_CERT 0x07 #define CC_ID_CICAM_BRAND_CERT 0x08 #define CC_ID_KP 0x0C #define CC_ID_DHPH 0x0D #define CC_ID_DHPM 0x0E #define CC_ID_HOST_DEV_CERT 0x0F #define CC_ID_CICAM_DEV_CERT 0x10 #define CC_ID_SIG_A 0x11 #define CC_ID_SIG_B 0x12 #define CC_ID_AUTH_NONCE 0x13 #define CC_ID_NS_HOST 0x14 #define CC_ID_NS_MODULE 0x15 #define CC_ID_AKH 0x16 #define CC_ID_URI 0x19 #define CC_ID_PROG_NUM 0x1A #define CC_ID_URI_CNF 0x1B #define CC_ID_KEY_REGISTER 0x1C #define CC_ID_URI_VERSIONS 0x1D #define CC_ID_STATUS_FIELD 0x1E #define CC_ID_CICAM_LICENSE 0x21 #define CC_ID_LICENSE_STATUS 0x22 #define CC_ID_LICENSE_RCV_STATUS 0x23 #define CC_ID_OPERATING_MODE 0x26 #define CC_ID_PINCODE_DATA 0x27 #define CC_ID_REC_START_STATUS 0x28 #define CC_ID_MODE_CHG_STATUS 0x29 #define CC_ID_REC_STOP_STATUS 0x2A #define CC_KEY_EVEN 0x0 #define CC_KEY_ODD 0x1 #define CC_STATUS_OK 0x0 #define CC_STATUS_NO_CC_SUPPORT 0x1 #define CC_STATUS_HOST_BUSY 0x2 #define CC_STATUS_AUTH_FAILED 0x3 #define CC_STATUS_CICAM_BUSY 0x4 #define CC_STATUS_REC_MODE_ERR 0x5 #define CC_SAC_AUTH_AES128_XCBC_MAC 0x0 #define CC_SAC_ENC_AES128_CBC 0x0 #define CC_CAP_NONE 0x0 #define CC_CAP_CAS_PIN 0x1 #define CC_CAP_CAS_FTA_PIN 0x2 #define CC_CAP_CAS_PIN_CACHED 0x3 #define CC_CAP_CAS_FTA_PIN_CACHED 0x4 /* length of DVB-SI utc time field in bytes */ #define UTC_TIME_LEN 5 #define CC_PIN_BAD 0x0 #define CC_PIN_CAM_BUSY 0x1 #define CC_PIN_OK 0x2 #define CC_PIN_UNCONFIRMED 0x3 #define CC_PIN_VB_NOT_REQ 0x4 #define CC_PIN_CSA 0x5 #define CC_OP_MODE_WATCH_BUFFER 0x0 #define CC_OP_MODE_TIMESHIFT 0x1 #define CC_OP_MODE_UNATTENDED 0x2 /* application mmi resource */ #define ACK_CODE_OK 0x1 #define ACK_CODE_WRONG_API 0x2 #define ACK_CODE_API_BUSY 0x3 #define REQ_TYPE_FILE 0x0 #define REQ_TYPE_DATA 0x1 #define REQ_TYPE_FILE_HASH 0x2 #define REQ_TYPE_REQ 0x3 /* lsc resource */ #define COMMS_CMD_ID_CONNECT_ON_CHANNEL 1 #define COMMS_CMD_ID_DISCONNECT_ON_CHANNEL 2 #define COMMS_CMD_ID_SET_PARAMS 3 #define COMMS_CMD_ID_ENQUIRE_STATUS 4 #define COMMS_CMD_ID_GET_NEXT_BUFFER 5 #define CONN_DESC_TEL 1 #define CONN_DESC_CABLE 2 #define CONN_DESC_IP 3 #define CONN_DESC_HOSTNAME 4 #define LSC_DESC_IP 0xCF #define LSC_DESC_HOSTNAME 0xCD #define LSC_IPV4 1 #define LSC_IPV6 2 #define LSC_TCP 1 #define LSC_UDP 2 #define COMMS_REP_ID_CONNECT_ACK 1 #define COMMS_REP_ID_DISCONNECT_ACK 2 #define COMMS_REP_ID_SET_PARAMS_ACK 3 #define COMMS_REP_ID_STATUS_REPLY 4 #define COMMS_REP_ID_GET_NEXT_BUFFER_ACK 5 #define COMMS_REP_ID_SEND_ACK 6 #define LSC_RET_OK 0 #define LSC_RET_DISCONNECTED 0 #define LSC_RET_CONNECTED 1 #define LSC_RET_TOO_BIG 0xFE /* sas resource */ #define SAS_SESS_STATE_CONNECTED 0 #define SAS_SESS_STATE_NOT_FOUND 1 #define SAS_SESS_STATE_DENIED 2 /* application layer */ #define APDU_TAG_SIZE 3 /* "don't care" value for min_len_field and len_field (this can't be 0) */ #define LEN_FIELD_ANY G_MAXUINT32 static GHashTable *apdu_table = NULL; typedef struct _apdu_info_t { guint32 tag; /* the minimum length required for this apdu */ guint32 min_len_field; /* if the apdu has a well-known length, we enforce it here * (otherwise, we set this to LEN_FIELD_ANY) */ guint32 len_field; guint8 direction; guint16 res_class; guint8 res_min_ver; void (*dissect_payload)(guint32, gint, tvbuff_t *, gint, circuit_t *, packet_info *, proto_tree *); } apdu_info_t; void proto_reg_handoff_dvbci(void); static void dissect_dvbci_payload_rm(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_ap(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_ca(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_aut(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo _U_, proto_tree *tree); static void dissect_dvbci_payload_hc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_dt(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_mmi(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_hlc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_cup(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_cc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_ami(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_lsc(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_opp(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree); static void dissect_dvbci_payload_sas(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit, packet_info *pinfo, proto_tree *tree); /* apdu defines */ #define T_PROFILE_ENQ 0x9F8010 #define T_PROFILE 0x9F8011 #define T_PROFILE_CHANGE 0x9F8012 #define T_APP_INFO_ENQ 0x9F8020 #define T_APP_INFO 0x9F8021 #define T_ENTER_MENU 0x9F8022 #define T_REQUEST_CICAM_RESET 0x9F8023 #define T_DATARATE_INFO 0x9F8024 #define T_CA_INFO_ENQ 0x9F8030 #define T_CA_INFO 0x9F8031 #define T_CA_PMT 0x9F8032 #define T_CA_PMT_REPLY 0x9F8033 #define T_AUTH_REQ 0x9F8200 #define T_AUTH_RESP 0x9F8201 #define T_TUNE 0x9F8400 #define T_REPLACE 0x9F8401 #define T_CLEAR_REPLACE 0x9F8402 #define T_ASK_RELEASE 0x9F8403 #define T_TUNE_BROADCAST_REQ 0x9F8404 #define T_TUNE_REPLY 0x9F8405 #define T_ASK_RELEASE_REPLY 0x9F8406 #define T_DATE_TIME_ENQ 0x9F8440 #define T_DATE_TIME 0x9F8441 #define T_CLOSE_MMI 0x9F8800 #define T_DISPLAY_CONTROL 0x9F8801 #define T_DISPLAY_REPLY 0x9F8802 #define T_ENQ 0x9F8807 #define T_ANSW 0x9F8808 #define T_MENU_LAST 0x9F8809 #define T_MENU_MORE 0x9F880A #define T_MENU_ANSW 0x9F880B #define T_LIST_LAST 0x9F880C #define T_LIST_MORE 0x9F880D #define T_HOST_COUNTRY_ENQ 0x9F8100 #define T_HOST_COUNTRY 0x9F8101 #define T_HOST_LANGUAGE_ENQ 0x9F8110 #define T_HOST_LANGUAGE 0x9F8111 #define T_CAM_FIRMWARE_UPGRADE 0x9F9D01 #define T_CAM_FIRMWARE_UPGRADE_REPLY 0x9F9D02 #define T_CAM_FIRMWARE_UPGRADE_PROGRESS 0x9F9D03 #define T_CAM_FIRMWARE_UPGRADE_COMPLETE 0x9F9D04 #define T_CC_OPEN_REQ 0x9F9001 #define T_CC_OPEN_CNF 0x9F9002 #define T_CC_DATA_REQ 0x9F9003 #define T_CC_DATA_CNF 0x9F9004 #define T_CC_SYNC_REQ 0x9F9005 #define T_CC_SYNC_CNF 0x9F9006 #define T_CC_SAC_DATA_REQ 0x9F9007 #define T_CC_SAC_DATA_CNF 0x9F9008 #define T_CC_SAC_SYNC_REQ 0x9F9009 #define T_CC_SAC_SYNC_CNF 0x9F9010 #define T_CC_PIN_CAPABILITIES_REQ 0x9F9011 #define T_CC_PIN_CAPABILITIES_REPLY 0x9F9012 #define T_CC_PIN_CMD 0x9F9013 #define T_CC_PIN_REPLY 0x9F9014 #define T_CC_PIN_EVENT 0x9F9015 #define T_CC_PIN_PLAYBACK 0x9F9016 #define T_CC_PIN_MMI_REQ 0x9F9017 #define T_REQUEST_START 0x9F8000 #define T_REQUEST_START_ACK 0x9F8001 #define T_FILE_REQUEST 0x9F8002 #define T_FILE_ACKNOWLEDGE 0x9F8003 #define T_APP_ABORT_REQUEST 0x9F8004 #define T_APP_ABORT_ACK 0x9F8005 #define T_COMMS_CMD 0x9F8C00 #define T_COMMS_REPLY 0x9F8C02 #define T_COMMS_SEND_LAST 0x9F8C03 #define T_COMMS_SEND_MORE 0x9F8C04 #define T_COMMS_RCV_LAST 0x9F8C05 #define T_COMMS_RCV_MORE 0x9F8C06 #define T_OPERATOR_STATUS_REQ 0x9F9C00 #define T_OPERATOR_STATUS 0x9F9C01 #define T_OPERATOR_NIT_REQ 0x9F9C02 #define T_OPERATOR_NIT 0x9F9C03 #define T_OPERATOR_INFO_REQ 0x9F9C04 #define T_OPERATOR_INFO 0x9F9C05 #define T_OPERATOR_SEARCH_START 0x9F9C06 #define T_OPERATOR_SEARCH_STATUS 0x9F9C07 #define T_OPERATOR_EXIT 0x9F9C08 #define T_OPERATOR_TUNE 0x9F9C09 #define T_OPERATOR_TUNE_STATUS 0x9F9C0A #define T_OPERATOR_ENTITLEMENT_ACK 0x9F9C0B #define T_OPERATOR_SEARCH_CANCEL 0x9F9C0C #define T_SAS_CONNECT_RQST 0x9F9A00 #define T_SAS_CONNECT_CNF 0x9F9A01 #define T_SAS_ASYNC_MSG 0x9F9A07 /* these are no real apdus, they just use the same format */ #define T_TEXT_LAST 0x9F8803 #define T_TEXT_MORE 0x9F8804 #define T_CONNECTION_DESCRIPTOR 0x9F8C01 #define IS_MENU_APDU(t) (t==T_MENU_MORE || t==T_MENU_LAST) static const apdu_info_t apdu_info[] = { {T_PROFILE_ENQ, 0, 0, DIRECTION_ANY, RES_CLASS_RM, 1, NULL}, {T_PROFILE, 0, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_RM, 1, dissect_dvbci_payload_rm}, {T_PROFILE_CHANGE, 0, 0, DIRECTION_ANY, RES_CLASS_RM, 1, NULL}, {T_APP_INFO_ENQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_AP, 1, NULL}, {T_APP_INFO, 6, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_AP, 1, dissect_dvbci_payload_ap}, {T_ENTER_MENU, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_AP, 1, NULL}, {T_REQUEST_CICAM_RESET, 0, 0, DATA_CAM_TO_HOST, RES_CLASS_AP, 3, NULL}, {T_DATARATE_INFO, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_AP, 3, dissect_dvbci_payload_ap}, {T_CA_INFO_ENQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_CA, 1, NULL}, {T_CA_INFO, 0, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_CA, 1, dissect_dvbci_payload_ca}, {T_CA_PMT, 6, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_CA, 1, dissect_dvbci_payload_ca}, {T_CA_PMT_REPLY, 8, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_CA, 1, dissect_dvbci_payload_ca}, {T_AUTH_REQ, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_AUT, 1, dissect_dvbci_payload_aut}, {T_AUTH_RESP, 2, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_AUT, 1, dissect_dvbci_payload_aut}, {T_TUNE, 0, 8, DATA_CAM_TO_HOST, RES_CLASS_HC, 1, dissect_dvbci_payload_hc}, {T_REPLACE, 0, 5, DATA_CAM_TO_HOST, RES_CLASS_HC, 1, dissect_dvbci_payload_hc}, {T_CLEAR_REPLACE, 0, 1, DATA_CAM_TO_HOST, RES_CLASS_HC, 1, dissect_dvbci_payload_hc}, {T_ASK_RELEASE, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_HC, 1, NULL}, {T_TUNE_BROADCAST_REQ, 5, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_HC, 2, dissect_dvbci_payload_hc}, {T_TUNE_REPLY, 1, 1, DATA_HOST_TO_CAM, RES_CLASS_HC, 2, dissect_dvbci_payload_hc}, {T_ASK_RELEASE_REPLY, 1, 1, DATA_CAM_TO_HOST, RES_CLASS_HC, 2, dissect_dvbci_payload_hc}, {T_DATE_TIME_ENQ, 0, 1, DATA_CAM_TO_HOST, RES_CLASS_DT, 1, dissect_dvbci_payload_dt}, {T_DATE_TIME, 5, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_DT, 1, dissect_dvbci_payload_dt}, {T_CLOSE_MMI, 1, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_DISPLAY_CONTROL, 1, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_DISPLAY_REPLY, 1, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_ENQ, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_ANSW, 1, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_MENU_LAST, 13, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_MENU_MORE, 13, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_MENU_ANSW, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_LIST_LAST, 13, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_LIST_MORE, 13, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_MMI, 1, dissect_dvbci_payload_mmi}, {T_HOST_COUNTRY_ENQ, 0, 0, DATA_CAM_TO_HOST, RES_CLASS_HLC, 1, NULL}, {T_HOST_COUNTRY, 0, 3, DATA_HOST_TO_CAM, RES_CLASS_HLC, 1, dissect_dvbci_payload_hlc}, {T_HOST_LANGUAGE_ENQ, 0, 0, DATA_CAM_TO_HOST, RES_CLASS_HLC, 1, NULL}, {T_HOST_LANGUAGE, 0, 3, DATA_HOST_TO_CAM, RES_CLASS_HLC, 1, dissect_dvbci_payload_hlc}, {T_CAM_FIRMWARE_UPGRADE, 0, 3, DATA_CAM_TO_HOST, RES_CLASS_CUP, 1, dissect_dvbci_payload_cup}, {T_CAM_FIRMWARE_UPGRADE_REPLY, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_CUP, 1, dissect_dvbci_payload_cup}, {T_CAM_FIRMWARE_UPGRADE_PROGRESS, 0, 1, DATA_CAM_TO_HOST, RES_CLASS_CUP, 1, dissect_dvbci_payload_cup}, {T_CAM_FIRMWARE_UPGRADE_COMPLETE, 0, 1, DATA_CAM_TO_HOST, RES_CLASS_CUP, 1, dissect_dvbci_payload_cup}, {T_CC_OPEN_REQ, 0, 0, DATA_CAM_TO_HOST, RES_CLASS_CC, 1, NULL}, {T_CC_OPEN_CNF, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_DATA_REQ, 3, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_DATA_CNF, 2, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_SYNC_REQ, 0, 0, DATA_CAM_TO_HOST, RES_CLASS_CC, 1, NULL}, {T_CC_SYNC_CNF, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_SAC_DATA_REQ, 8, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_SAC_DATA_CNF, 8, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_SAC_SYNC_REQ, 8, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_SAC_SYNC_CNF, 8, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_CC, 1, dissect_dvbci_payload_cc}, {T_CC_PIN_CAPABILITIES_REQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_CC, 2, NULL}, {T_CC_PIN_CAPABILITIES_REPLY, 7, 7, DATA_CAM_TO_HOST, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_CC_PIN_CMD, 1, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_CC_PIN_REPLY, 1, 1, DATA_CAM_TO_HOST, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_CC_PIN_EVENT, 25, 25, DATA_CAM_TO_HOST, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_CC_PIN_PLAYBACK, 16, 16, DATA_HOST_TO_CAM, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_CC_PIN_MMI_REQ, 1, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_CC, 2, dissect_dvbci_payload_cc}, {T_REQUEST_START, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_REQUEST_START_ACK, 0, 1, DATA_HOST_TO_CAM, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_FILE_REQUEST, 1, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_FILE_ACKNOWLEDGE, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_APP_ABORT_REQUEST, 0, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_APP_ABORT_ACK, 0, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_AMI, 1, dissect_dvbci_payload_ami}, {T_COMMS_CMD, 1, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_COMMS_REPLY, 0, 2, DATA_HOST_TO_CAM, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_COMMS_SEND_LAST, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_COMMS_SEND_MORE, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_COMMS_RCV_LAST, 2, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_COMMS_RCV_MORE, 2, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_LSC, 1, dissect_dvbci_payload_lsc}, {T_OPERATOR_STATUS_REQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_OPERATOR_STATUS, 0, 6, DATA_CAM_TO_HOST, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_NIT_REQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_OPERATOR_NIT, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_INFO_REQ, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_OPERATOR_INFO, 1, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_SEARCH_START, 3, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_SEARCH_STATUS, 0, 6, DATA_CAM_TO_HOST, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_EXIT, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_OPERATOR_TUNE, 2, LEN_FIELD_ANY, DATA_CAM_TO_HOST, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_TUNE_STATUS, 5, LEN_FIELD_ANY, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, dissect_dvbci_payload_opp}, {T_OPERATOR_ENTITLEMENT_ACK, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_OPERATOR_SEARCH_CANCEL, 0, 0, DATA_HOST_TO_CAM, RES_CLASS_OPP, 1, NULL}, {T_SAS_CONNECT_RQST, 0, 8, DATA_HOST_TO_CAM, RES_CLASS_SAS, 1, dissect_dvbci_payload_sas}, {T_SAS_CONNECT_CNF, 0, 9, DATA_CAM_TO_HOST, RES_CLASS_SAS, 1, dissect_dvbci_payload_sas}, {T_SAS_ASYNC_MSG, 3, LEN_FIELD_ANY, DIRECTION_ANY, RES_CLASS_SAS, 1, dissect_dvbci_payload_sas} }; static const value_string dvbci_apdu_tag[] = { { T_PROFILE_ENQ, "Profile enquiry" }, { T_PROFILE, "Profile information" }, { T_PROFILE_CHANGE, "Profile change notification" }, { T_APP_INFO_ENQ, "Application info enquiry" }, { T_APP_INFO, "Application info" }, { T_ENTER_MENU, "Enter menu" }, { T_REQUEST_CICAM_RESET, "Request CICAM reset" }, { T_DATARATE_INFO, "Datarate info" }, { T_CA_INFO_ENQ, "CA info enquiry" }, { T_CA_INFO, "CA info" }, { T_CA_PMT, "CA PMT" }, { T_CA_PMT_REPLY, "CA PMT reply" }, { T_AUTH_REQ, "Authentication request" }, { T_AUTH_RESP, "Authentication response" }, { T_TUNE, "Tune" }, { T_REPLACE, "Replace" }, { T_CLEAR_REPLACE, "Clear replace" }, { T_ASK_RELEASE, "Ask release" }, { T_TUNE_BROADCAST_REQ, "Tune broadcast request" }, { T_TUNE_REPLY, "Tune reply" }, { T_ASK_RELEASE_REPLY, "Ask release reply" }, { T_DATE_TIME_ENQ, "Date-Time enquiry" }, { T_DATE_TIME, "Date-Time" }, { T_CLOSE_MMI, "Close MMI" }, { T_DISPLAY_CONTROL, "Display control" }, { T_DISPLAY_REPLY, "Display reply" }, { T_TEXT_LAST, "Text last" }, { T_TEXT_MORE, "Text more" }, { T_ENQ, "Enquiry" }, { T_ANSW, "Answer" }, { T_MENU_LAST, "Menu last" }, { T_MENU_MORE, "Menu more" }, { T_MENU_ANSW, "Menu answer" }, { T_LIST_LAST, "List last" }, { T_LIST_MORE, "List more" }, { T_HOST_COUNTRY_ENQ, "Host country enquiry" }, { T_HOST_COUNTRY, "Host country" }, { T_HOST_LANGUAGE_ENQ, "Host language enquiry" }, { T_HOST_LANGUAGE, "Host language" }, { T_CAM_FIRMWARE_UPGRADE, "CAM firmware upgrade" }, { T_CAM_FIRMWARE_UPGRADE_REPLY, "CAM firmware upgrade reply" }, { T_CAM_FIRMWARE_UPGRADE_PROGRESS, "CAM firmware upgrade progress" }, { T_CAM_FIRMWARE_UPGRADE_COMPLETE, "CAM firmware upgrade complete" }, { T_CC_OPEN_REQ, "CC open request" }, { T_CC_OPEN_CNF, "CC open confirm" }, { T_CC_DATA_REQ, "CC data request" }, { T_CC_DATA_CNF, "CC data confirm" }, { T_CC_SYNC_REQ, "CC sync request" }, { T_CC_SYNC_CNF, "CC sync confirm" }, { T_CC_SAC_DATA_REQ, "CC SAC data request" }, { T_CC_SAC_DATA_CNF, "CC SAC data confirm" }, { T_CC_SAC_SYNC_REQ, "CC SAC sync request" }, { T_CC_SAC_SYNC_CNF, "CC SAC sync confirm" }, { T_CC_PIN_CAPABILITIES_REQ, "CC PIN capabilities request" }, { T_CC_PIN_CAPABILITIES_REPLY, "CC PIN capabilities reply" }, { T_CC_PIN_CMD, "CC PIN command" }, { T_CC_PIN_REPLY, "CC PIN reply" }, { T_CC_PIN_EVENT, "CC PIN event" }, { T_CC_PIN_PLAYBACK, "CC PIN playback" }, { T_CC_PIN_MMI_REQ, "CC PIN MMI request" }, { T_REQUEST_START, "Request start" }, { T_REQUEST_START_ACK, "Request start ack" }, { T_FILE_REQUEST, "File request" }, { T_FILE_ACKNOWLEDGE, "File acknowledge" }, { T_APP_ABORT_REQUEST, "App abort request" }, { T_APP_ABORT_ACK, "App abort ack" }, { T_COMMS_CMD, "Comms command" }, { T_COMMS_REPLY, "Comms reply" }, { T_CONNECTION_DESCRIPTOR, "Connection descriptor" }, { T_COMMS_SEND_LAST, "Comms send last" }, { T_COMMS_SEND_MORE, "Comms send more" }, { T_COMMS_RCV_LAST, "Comms receive last" }, { T_COMMS_RCV_MORE, "Comms receive more" }, { T_OPERATOR_STATUS_REQ, "Operator status request" }, { T_OPERATOR_STATUS, "Operator status" }, { T_OPERATOR_NIT_REQ, "Operator NIT request" }, { T_OPERATOR_NIT, "Operator NIT" }, { T_OPERATOR_INFO_REQ, "Operator info request" }, { T_OPERATOR_INFO, "Operator info" }, { T_OPERATOR_SEARCH_START, "Operator search start" }, { T_OPERATOR_SEARCH_STATUS, "Operator search status" }, { T_OPERATOR_EXIT, "Operator exit" }, { T_OPERATOR_TUNE, "Operator tune" }, { T_OPERATOR_TUNE_STATUS, "Operator tune status" }, { T_OPERATOR_ENTITLEMENT_ACK, "Operator entitlement acknowledge" }, { T_OPERATOR_SEARCH_CANCEL, "Operator search cancel" }, { T_SAS_CONNECT_RQST, "SAS connect request" }, { T_SAS_CONNECT_CNF, "SAS connect confirm" }, { T_SAS_ASYNC_MSG, "SAS async message" }, { 0, NULL } }; /* convert a byte that contains two 4bit BCD digits into a decimal value */ #define BCD44_TO_DEC(x) (((x&0xf0) >> 4) * 10 + (x&0x0f)) static int proto_dvbci = -1; static const gchar *dvbci_sek = NULL; static const gchar *dvbci_siv = NULL; static gint ett_dvbci = -1; static gint ett_dvbci_hdr = -1; static gint ett_dvbci_cis = -1; static gint ett_dvbci_cis_tpl = -1; static gint ett_dvbci_link = -1; static gint ett_dvbci_link_frag = -1; static gint ett_dvbci_link_frags = -1; static gint ett_dvbci_transport = -1; static gint ett_dvbci_transport_frag = -1; static gint ett_dvbci_transport_frags = -1; static gint ett_dvbci_session = -1; static gint ett_dvbci_res = -1; static gint ett_dvbci_application = -1; static gint ett_dvbci_es = -1; static gint ett_dvbci_ca_desc = -1; static gint ett_dvbci_text = -1; static gint ett_dvbci_cc_item = -1; static gint ett_dvbci_sac_msg_body = -1; static gint ett_dvbci_ami_req_types = -1; static gint ett_dvbci_lsc_conn_desc = -1; static gint ett_dvbci_opp_cap_loop = -1; static int hf_dvbci_event = -1; static int hf_dvbci_hw_event = -1; static int hf_dvbci_cistpl_code = -1; static int hf_dvbci_buf_size = -1; static int hf_dvbci_tcid = -1; static int hf_dvbci_ml = -1; static int hf_dvbci_l_frags = -1; static int hf_dvbci_l_frag = -1; static int hf_dvbci_l_frag_overlap = -1; static int hf_dvbci_l_frag_overlap_conflicts = -1; static int hf_dvbci_l_frag_multiple_tails = -1; static int hf_dvbci_l_frag_too_long_frag = -1; static int hf_dvbci_l_frag_err = -1; static int hf_dvbci_l_frag_cnt = -1; static int hf_dvbci_l_reass_in = -1; static int hf_dvbci_l_reass_len = -1; static int hf_dvbci_c_tpdu_tag = -1; static int hf_dvbci_r_tpdu_tag = -1; static int hf_dvbci_t_c_id = -1; static int hf_dvbci_sb_value = -1; static int hf_dvbci_t_frags = -1; static int hf_dvbci_t_frag = -1; static int hf_dvbci_t_frag_overlap = -1; static int hf_dvbci_t_frag_overlap_conflicts = -1; static int hf_dvbci_t_frag_multiple_tails = -1; static int hf_dvbci_t_frag_too_long_frag = -1; static int hf_dvbci_t_frag_err = -1; static int hf_dvbci_t_frag_cnt = -1; static int hf_dvbci_t_reass_in = -1; static int hf_dvbci_t_reass_len = -1; static int hf_dvbci_spdu_tag = -1; static int hf_dvbci_sess_status = -1; static int hf_dvbci_sess_nb = -1; static int hf_dvbci_close_sess_status = -1; static int hf_dvbci_res_id_type = -1; static int hf_dvbci_res_class = -1; static int hf_dvbci_res_type = -1; static int hf_dvbci_res_ver = -1; static int hf_dvbci_apdu_tag = -1; static int hf_dvbci_app_type = -1; static int hf_dvbci_app_manf = -1; static int hf_dvbci_manf_code = -1; static int hf_dvbci_menu_str_len = -1; static int hf_dvbci_data_rate = -1; static int hf_dvbci_ca_sys_id = -1; static int hf_dvbci_ca_pmt_list_mgmt = -1; static int hf_dvbci_prog_num = -1; static int hf_dvbci_prog_info_len = -1; static int hf_dvbci_stream_type = -1; static int hf_dvbci_es_pid = -1; static int hf_dvbci_es_info_len = -1; static int hf_dvbci_ca_pmt_cmd_id = -1; static int hf_dvbci_descr_len = -1; static int hf_dvbci_ca_pid = -1; static int hf_dvbci_ca_enable_flag = -1; static int hf_dvbci_ca_enable = -1; static int hf_dvbci_auth_proto_id = -1; static int hf_dvbci_auth_req_bytes = -1; static int hf_dvbci_auth_resp_bytes = -1; static int hf_dvbci_network_id = -1; static int hf_dvbci_original_network_id = -1; static int hf_dvbci_transport_stream_id = -1; static int hf_dvbci_service_id = -1; static int hf_dvbci_replacement_ref = -1; static int hf_dvbci_replaced_pid = -1; static int hf_dvbci_replacement_pid = -1; static int hf_dvbci_pmt_flag = -1; static int hf_dvbci_hc_desc_loop_len = -1; static int hf_dvbci_hc_status = -1; static int hf_dvbci_resp_intv = -1; static int hf_dvbci_utc_time = -1; static int hf_dvbci_local_offset = -1; static int hf_dvbci_close_mmi_cmd_id = -1; static int hf_dvbci_close_mmi_delay = -1; static int hf_dvbci_disp_ctl_cmd = -1; static int hf_dvbci_mmi_mode = -1; static int hf_dvbci_disp_rep_id = -1; static int hf_dvbci_char_tbl = -1; static int hf_dvbci_blind_ans = -1; static int hf_dvbci_ans_txt_len = -1; static int hf_dvbci_text_ctrl = -1; static int hf_dvbci_ans_id = -1; static int hf_dvbci_choice_nb = -1; static int hf_dvbci_choice_ref = -1; static int hf_dvbci_item_nb = -1; static int hf_dvbci_host_country = -1; static int hf_dvbci_host_language = -1; static int hf_dvbci_cup_type = -1; static int hf_dvbci_cup_download_time = -1; static int hf_dvbci_cup_answer = -1; static int hf_dvbci_cup_progress = -1; static int hf_dvbci_cup_reset = -1; static int hf_dvbci_cc_sys_id_bitmask = -1; static int hf_dvbci_cc_dat_id = -1; static int hf_dvbci_brand_cert = -1; static int hf_dvbci_dev_cert = -1; static int hf_dvbci_uri_ver = -1; static int hf_dvbci_uri_aps = -1; static int hf_dvbci_uri_emi = -1; static int hf_dvbci_uri_ict = -1; static int hf_dvbci_uri_rct = -1; static int hf_dvbci_cc_key_register = -1; static int hf_dvbci_cc_status_field = -1; static int hf_dvbci_cc_op_mode = -1; static int hf_dvbci_cc_data = -1; static int hf_dvbci_sac_msg_ctr = -1; static int hf_dvbci_sac_proto_ver = -1; static int hf_dvbci_sac_auth_cip = -1; static int hf_dvbci_sac_payload_enc = -1; static int hf_dvbci_sac_enc_cip = -1; static int hf_dvbci_sac_payload_len = -1; static int hf_dvbci_sac_enc_body = -1; static int hf_dvbci_sac_signature = -1; static int hf_dvbci_rating = -1; static int hf_dvbci_capability_field = -1; static int hf_dvbci_pin_chg_time = -1; static int hf_dvbci_pincode_status = -1; static int hf_dvbci_cc_prog_num = -1; static int hf_dvbci_pin_evt_time = -1; static int hf_dvbci_pin_evt_cent = -1; static int hf_dvbci_cc_priv_data = -1; static int hf_dvbci_pincode = -1; static int hf_dvbci_app_dom_id = -1; static int hf_dvbci_init_obj = -1; static int hf_dvbci_ack_code = -1; static int hf_dvbci_req_type = -1; static int hf_dvbci_file_hash = -1; static int hf_dvbci_file_name = -1; static int hf_dvbci_ami_priv_data = -1; static int hf_dvbci_req_ok = -1; static int hf_dvbci_file_ok = -1; static int hf_dvbci_file_data = -1; static int hf_dvbci_abort_req_code = -1; static int hf_dvbci_abort_ack_code = -1; static int hf_dvbci_phase_id = -1; static int hf_dvbci_comms_rep_id = -1; static int hf_dvbci_lsc_buf_size = -1; static int hf_dvbci_lsc_ret_val = -1; static int hf_dvbci_comms_cmd_id = -1; static int hf_dvbci_conn_desc_type = -1; static int hf_dvbci_lsc_media_tag = -1; static int hf_dvbci_lsc_media_len = -1; static int hf_dvbci_lsc_ip_ver = -1; static int hf_dvbci_lsc_ipv4_addr = -1; static int hf_dvbci_lsc_ipv6_addr = -1; static int hf_dvbci_lsc_dst_port = -1; static int hf_dvbci_lsc_proto = -1; static int hf_dvbci_lsc_hostname = -1; static int hf_dvbci_lsc_retry_count = -1; static int hf_dvbci_lsc_timeout = -1; static int hf_dvbci_lsc_msg = -1; static int hf_dvbci_info_ver_op_status = -1; static int hf_dvbci_nit_ver = -1; static int hf_dvbci_pro_typ = -1; static int hf_dvbci_init_flag = -1; static int hf_dvbci_ent_chg_flag = -1; static int hf_dvbci_ent_val_flag = -1; static int hf_dvbci_ref_req_flag = -1; static int hf_dvbci_err_flag = -1; static int hf_dvbci_dlv_sys_hint = -1; static int hf_dvbci_refr_req_date = -1; static int hf_dvbci_refr_req_time = -1; static int hf_dvbci_nit_loop_len = -1; static int hf_dvbci_nit = -1; static int hf_dvbci_info_valid = -1; static int hf_dvbci_info_ver_op_info = -1; static int hf_dvbci_cicam_onid = -1; static int hf_dvbci_cicam_id = -1; static int hf_dvbci_opp_char_tbl_multi = -1; static int hf_dvbci_opp_char_tbl = -1; static int hf_dvbci_enc_type_id = -1; static int hf_dvbci_sdt_rst_trusted = -1; static int hf_dvbci_eit_rst_trusted = -1; static int hf_dvbci_eit_pf_usage = -1; static int hf_dvbci_eit_sch_usage = -1; static int hf_dvbci_ext_evt_usage = -1; static int hf_dvbci_sdt_oth_trusted = -1; static int hf_dvbci_eit_evt_trigger = -1; static int hf_dvbci_opp_lang_code = -1; static int hf_dvbci_prof_name = -1; static int hf_dvbci_unattended = -1; static int hf_dvbci_opp_srv_type = -1; static int hf_dvbci_dlv_cap_byte = -1; static int hf_dvbci_app_cap_bytes = -1; static int hf_dvbci_desc_num = -1; static int hf_dvbci_sig_strength = -1; static int hf_dvbci_sig_qual = -1; static int hf_dvbci_opp_tune_status = -1; static int hf_dvbci_opp_desc_loop_len = -1; static int hf_dvbci_sas_app_id = -1; static int hf_dvbci_sas_sess_state = -1; static int hf_dvbci_sas_msg_nb = -1; static int hf_dvbci_sas_msg_len = -1; static dissector_table_t sas_msg_dissector_table; static GHashTable *tpdu_fragment_table = NULL; static GHashTable *tpdu_reassembled_table = NULL; static GHashTable *spdu_fragment_table = NULL; static GHashTable *spdu_reassembled_table = NULL; static const fragment_items tpdu_frag_items = { &ett_dvbci_link_frag, &ett_dvbci_link_frags, &hf_dvbci_l_frags, &hf_dvbci_l_frag, &hf_dvbci_l_frag_overlap, &hf_dvbci_l_frag_overlap_conflicts, &hf_dvbci_l_frag_multiple_tails, &hf_dvbci_l_frag_too_long_frag, &hf_dvbci_l_frag_err, &hf_dvbci_l_frag_cnt, &hf_dvbci_l_reass_in, &hf_dvbci_l_reass_len, "Tpdu fragments" }; static const fragment_items spdu_frag_items = { &ett_dvbci_transport_frag, &ett_dvbci_transport_frags, &hf_dvbci_t_frags, &hf_dvbci_t_frag, &hf_dvbci_t_frag_overlap, &hf_dvbci_t_frag_overlap_conflicts, &hf_dvbci_t_frag_multiple_tails, &hf_dvbci_t_frag_too_long_frag, &hf_dvbci_t_frag_err, &hf_dvbci_t_frag_cnt, &hf_dvbci_t_reass_in, &hf_dvbci_t_reass_len, "Spdu fragments" }; typedef struct _spdu_info_t { guint8 tag; guint8 direction; guint8 len_field; } spdu_info_t; static const value_string dvbci_event[] = { { DATA_HOST_TO_CAM, "data transfer Host -> CAM" }, { DATA_CAM_TO_HOST, "data transfer CAM -> Host" }, { CIS_READ, "read the Card Information Structure (CIS)" }, { COR_WRITE, "write into the Configuration Option Register (COR)" }, { HW_EVT, "hardware event" }, { 0, NULL } }; static const value_string dvbci_hw_event[] = { { CAM_IN, "CI Module is inserted" }, { CAM_OUT, "CI Module is removed" }, { POWER_ON, "CI slot power on" }, { POWER_OFF, "CI slot power off" }, { TS_ROUTE, "Transport stream routed through the CI Module" }, { TS_BYPASS, "Transport stream bypasses the CI Module" }, { RESET_H, "Reset pin is high" }, { RESET_L, "Reset pin is low" }, { READY_H, "Ready pin is high" }, { READY_L, "Ready pin is low" }, { 0, NULL } }; static const value_string dvbci_cistpl_code[] = { { CISTPL_NO_LINK, "No-link tuple" }, { CISTPL_VERS_1, "Level 1 version/product information" }, { CISTPL_CONFIG, "Configuration for a 16bit PC-Card" }, { CISTPL_CFTABLE_ENTRY, "Configuration-table entry" }, { CISTPL_DEVICE_OC, "Device information for Common Memory" }, { CISTPL_DEVICE_OA, "Device information for Attribute Memory" }, { CISTPL_MANFID, "Manufacturer indentification string" }, { CISTPL_END, "End of chain" }, { 0, NULL } }; static const value_string dvbci_ml[] = { { ML_MORE, "more TPDU fragments pending" }, { ML_LAST, "last TPDU fragment" }, { 0, NULL } }; static const value_string dvbci_c_tpdu[] = { { T_RCV, "T_RCV" }, { T_CREATE_T_C, "T_create_t_c" }, { T_DELETE_T_C, "T_delete_t_c" }, { T_D_T_C_REPLY, "T_d_t_c_reply" }, { T_NEW_T_C, "T_new_t_c" }, { T_T_C_ERROR, "T_t_c_error" }, { T_DATA_LAST, "T_data_last" }, { T_DATA_MORE, "T_data_more" }, { 0, NULL } }; static const value_string dvbci_r_tpdu[] = { { T_C_T_C_REPLY, "T_c_tc_reply" }, { T_DELETE_T_C, "T_delete_t_c" }, { T_D_T_C_REPLY, "T_d_t_c_reply" }, { T_REQUEST_T_C, "T_request_t_c" }, { T_DATA_LAST, "T_data_last" }, { T_DATA_MORE, "T_data_more" }, { 0, NULL } }; static const value_string dvbci_sb_value[] = { { SB_VAL_MSG_AVAILABLE, "message available" }, { SB_VAL_NO_MSG_AVAILABLE, "no message available" }, { 0, NULL } }; static const value_string dvbci_spdu_tag[] = { { T_SESSION_NUMBER, "Session Number (payload data)" }, { T_OPEN_SESSION_REQUEST, "Open Session Request" }, { T_OPEN_SESSION_RESPONSE, "Open Session Response" }, { T_CREATE_SESSION, "Create Session" }, { T_CREATE_SESSION_RESPONSE, "Create Session Response" }, { T_CLOSE_SESSION_REQUEST, "Close Session Request" }, { T_CLOSE_SESSION_RESPONSE, "Close Session Response" }, { 0, NULL } }; static GHashTable *spdu_table = NULL; static const spdu_info_t spdu_info[] = { { T_SESSION_NUMBER, DIRECTION_ANY, 2 }, { T_OPEN_SESSION_REQUEST, DATA_CAM_TO_HOST, 4 }, { T_OPEN_SESSION_RESPONSE, DATA_HOST_TO_CAM, 7 }, { T_CREATE_SESSION, DATA_HOST_TO_CAM, 6 }, { T_CREATE_SESSION_RESPONSE, DATA_CAM_TO_HOST, 7 }, { T_CLOSE_SESSION_REQUEST, DIRECTION_ANY, 2 }, { T_CLOSE_SESSION_RESPONSE, DIRECTION_ANY, 3 } }; static const value_string dvbci_sess_status[] = { { SESS_OPENED, "Session opened" }, { SESS_NOT_OPENED_RES_NON_EXIST, "Resource does not exist" }, { SESS_NOT_OPENED_RES_UNAVAIL, "Resource exists but it's unavailable" }, { SESS_NOT_OPENED_RES_VER_LOWER, "Existing resource's version is lower than requested version" }, { SESS_NOT_OPENED_RES_BUSY, "Resource is busy" }, { 0, NULL } }; static const value_string dvbci_close_sess_status[] = { { SESS_CLOSED, "Session closed" }, { SESS_NB_NOT_ALLOC, "Session number not allocated" }, { 0, NULL } }; static const value_string dvbci_res_class[] = { { RES_CLASS_RM, "Resource Manager" }, { RES_CLASS_AP, "Application Info" }, { RES_CLASS_CA, "Conditional Access" }, { RES_CLASS_AUT, "Authentication" }, { RES_CLASS_HC, "Host Control" }, { RES_CLASS_DT, "Date-Time" }, { RES_CLASS_MMI, "Man-machine interface (MMI)" }, { RES_CLASS_AMI, "Application MMI" }, { RES_CLASS_LSC, "Low-Speed Communication" }, { RES_CLASS_CC, "Content Control" }, { RES_CLASS_HLC, "Host Language & Country" }, { RES_CLASS_CUP, "CAM Upgrade" }, { RES_CLASS_OPP, "Operator Profile" }, { RES_CLASS_SAS, "Specific Application Support" }, { 0, NULL } }; static const value_string dvbci_app_type[] = { { APP_TYPE_CA, "Conditional Access" }, { APP_TYPE_EPG, "Electronic Progam Guide" }, { 0, NULL } }; static const value_string dvbci_data_rate[] = { { DATA_RATE_72, "72 Mbit/s" }, { DATA_RATE_96, "96 Mbit/s" }, { 0, NULL } }; static const value_string dvbci_ca_pmt_list_mgmt[] = { { LIST_MGMT_MORE, "more" }, { LIST_MGMT_FIRST, "first" }, { LIST_MGMT_LAST, "last" }, { LIST_MGMT_ONLY, "only" }, { LIST_MGMT_ADD, "add" }, { LIST_MGMT_UPDATE, "update" }, { 0, NULL } }; static const value_string dvbci_ca_pmt_cmd_id[] = { { CMD_ID_OK_DESCR, "ok descrambling" }, { CMD_ID_OK_MMI, "ok mmi" }, { CMD_ID_QUERY, "query" }, { CMD_ID_NOT_SELECTED, "not selected" }, { 0, NULL } }; static const value_string dvbci_ca_enable[] = { { CA_ENAB_DESC_OK, "descrambling possible" }, { CA_ENAB_DESC_OK_PURCHASE, "descrambling possible under conditions (purchase dialogue)" }, { CA_ENAB_DESC_OK_TECH, "descrambling possible under conditions (technical dialogue)" }, { CA_ENAB_DESC_NG_ENTITLEMENT, "descrambling not possible (because no entitlement)" }, { CA_ENAB_DESC_NG_TECH, "descrambling not possible (for technical reasons)" }, { 0, NULL } }; static const value_string dvbci_hc_status[] = { { HC_STAT_OK, "ok" }, { HC_STAT_ERR_DLVRY, "unsupported delivery system descriptor" }, { HC_STAT_ERR_LOCK, "tuner not locking" }, { HC_STAT_ERR_BUSY, "tuner busy" }, { HC_STAT_ERR_PARAM, "bad or missing parameters" }, { HC_STAT_ERR_NOT_FOUND, "service not found" }, { HC_STAT_ERR_UNKNOWN, "unknown error" }, { 0, NULL } }; static const value_string dvbci_close_mmi_cmd_id[] = { { CLOSE_MMI_CMD_ID_IMMEDIATE, "immediate close" }, { CLOSE_MMI_CMD_ID_DELAY, "delayed close" }, { 0, NULL } }; static const value_string dvbci_disp_ctl_cmd[] = { { DISP_CMD_SET_MMI_MODE, "set MMI mode" }, { DISP_CMD_GET_DISP_TBL, "get display character tables" }, { DISP_CMD_GET_INP_TBL, "get input character tables" }, { 0, NULL } }; static const value_string dvbci_mmi_mode[] = { { MMI_MODE_HIGH, "High-level MMI" }, { 0, NULL } }; static const value_string dvbci_disp_rep_id[] = { { DISP_REP_ID_MMI_MODE_ACK, "MMI mode acknowledge" }, { DISP_REP_ID_DISP_CHAR_TBL, "list display character tables" }, { DISP_REP_ID_INP_CHAR_TBL, "list input character tables" }, { DISP_REP_ID_UNKNOWN_CMD, "unknown display control command" }, { DISP_REP_ID_UNKNOWN_MMI_MODE, "unknown MMI mode" }, { DISP_REP_ID_UNKNOWN_CHAR_TBL, "unknown character table" }, { 0, NULL } }; static const value_string dvbci_blind_ans[] = { { VISIBLE_ANS, "visible" }, { BLIND_ANS, "blind" }, { 0, NULL } }; static const value_string dvbci_text_ctrl[] = { { TEXT_CTRL_EMPH_ON, "character emphasis on" }, { TEXT_CTRL_EMPH_OFF, "character emphasis off" }, { TEXT_CTRL_CRLF, "CR/LF" }, { 0, NULL } }; static const value_string dvbci_char_tbl[] = { { CHAR_TBL_8859_5, "ISO/IEC 8859-5 (Latin/Cyrillic)" }, { CHAR_TBL_8859_6, "ISO/IEC 8859-6 (Latin/Arabic)" }, { CHAR_TBL_8859_7, "ISO/IEC 8859-7 (Latin/Greek)" }, { CHAR_TBL_8859_8, "ISO/IEC 8859-8 (Latin/Hebrew)" }, { CHAR_TBL_8859_9, "ISO/IEC 8859-9 (Latin No. 5)" }, { CHAR_TBL_8859_10, "ISO/IEC 8859-10 (Latin No. 6)" }, { CHAR_TBL_8859_11, "ISO/IEC 8859-11 (Latin/Thai)" }, { CHAR_TBL_8859_13, "ISO/IEC 8859-13 (Latin No. 7)" }, { CHAR_TBL_8859_14, "ISO/IEC 8859-14 (Latin No. 8 (Celtic))" }, { CHAR_TBL_8859_15, "ISO/IEC 8859-15 (Latin No. 9)" }, { CHAR_TBL_ENC_TYPE_ID, "defined by encoding_type_id" }, /* don't add any multi-byte tables (>= 0x10) */ { 0, NULL } }; static const value_string dvbci_ans_id[] = { { ANSW_ID_CANCEL, "cancel" }, { ANSW_ID_ANSWER, "answer" }, { 0, NULL } }; static const value_string dvbci_cup_type[] = { { CUP_DELAYED, "delayed" }, { CUP_IMMEDIATE, "immediate" }, { 0, NULL } }; static const value_string dvbci_cup_answer[] = { { CUP_ANS_NO, "upgrade denied" }, { CUP_ANS_YES, "upgrade allowed" }, { CUP_ANS_ASK, "ask the user for permission" }, { 0, NULL } }; static const value_string dvbci_cup_reset[] = { { CUP_RESET_PCMCIA, "PCMCIA reset" }, { CUP_RESET_CMDIF, "CI command interface reset" }, { CUP_RESET_NONE, "no reset" }, { 0, NULL } }; static const value_string dvbci_cc_dat_id[] = { { CC_ID_HOST_ID, "Host ID" }, { CC_ID_CICAM_ID, "Cicam ID" }, { CC_ID_HOST_BRAND_CERT, "Host brand certificate" }, { CC_ID_CICAM_BRAND_CERT, "Cicam brand certificate" }, { CC_ID_KP, "Key precursor for CCK" }, { CC_ID_DHPH, "Host Diffie-Hellman public key" }, { CC_ID_DHPM, "Cicam Diffie-Hellman public key" }, { CC_ID_HOST_DEV_CERT, "Host device certificate" }, { CC_ID_CICAM_DEV_CERT, "Cicam device certificate" }, { CC_ID_SIG_A, "Signature of host Diffie-Hellman public key" }, { CC_ID_SIG_B, "Signature of cicam Diffie-Hellman public key" }, { CC_ID_NS_HOST, "Host nonce" }, { CC_ID_AUTH_NONCE, "Nonce for authentication" }, { CC_ID_NS_MODULE, "Cicam nonce" }, { CC_ID_AKH, "Host authentication key" }, { CC_ID_URI, "URI" }, { CC_ID_PROG_NUM, "Program number" }, { CC_ID_URI_CNF, "URI confirmation" }, { CC_ID_KEY_REGISTER, "Key register" }, { CC_ID_URI_VERSIONS, "Supported URI versions" }, { CC_ID_STATUS_FIELD, "Status field" }, { CC_ID_CICAM_LICENSE, "License received from the cicam" }, { CC_ID_LICENSE_STATUS, "Current status of the license" }, { CC_ID_LICENSE_RCV_STATUS, "Status of the license exchange" }, { CC_ID_OPERATING_MODE, "Operating mode" }, { CC_ID_PINCODE_DATA, "Pincode data" }, { CC_ID_REC_START_STATUS, "Record start status" }, { CC_ID_MODE_CHG_STATUS, "Change operating mode status" }, { CC_ID_REC_STOP_STATUS, "Record stop status" }, { 0, NULL } }; static const value_string dvbci_cc_key_register[] = { { CC_KEY_EVEN, "Even" }, { CC_KEY_ODD, "Odd" }, { 0, NULL } }; static const value_string dvbci_cc_status[] = { { CC_STATUS_OK, "Ok" }, { CC_STATUS_NO_CC_SUPPORT, "No CC support" }, { CC_STATUS_HOST_BUSY, "Host busy" }, { CC_STATUS_AUTH_FAILED, "Authentication failed" }, { CC_STATUS_CICAM_BUSY, "CICAM busy" }, { CC_STATUS_REC_MODE_ERR, "Recording mode error" }, { 0, NULL } }; static const value_string dvbci_cc_sac_auth[] = { { CC_SAC_AUTH_AES128_XCBC_MAC, "AES 128 XCBC MAC" }, { 0, NULL } }; static const value_string dvbci_cc_sac_enc[] = { { CC_SAC_ENC_AES128_CBC, "AES 128 CBC" }, { 0, NULL } }; static const value_string dvbci_cc_cap[] = { { CC_CAP_NONE, "No PIN handling capability" }, { CC_CAP_CAS_PIN, "CAM can do PIN handling on CAS services" }, { CC_CAP_CAS_FTA_PIN, "CAM can do PIN handling on CAS and free services" }, { CC_CAP_CAS_PIN_CACHED, "CAM can do PIN handling on CAS services and supports PIN caching" }, { CC_CAP_CAS_FTA_PIN_CACHED, "CAM can do PIN handling on CAS and free services, supports PIN caching" }, { 0, NULL } }; static const value_string dvbci_pincode_status[] = { { CC_PIN_BAD, "Bad pin code" }, { CC_PIN_CAM_BUSY, "CAM busy" }, { CC_PIN_OK, "Pin code correct" }, { CC_PIN_UNCONFIRMED, "Pin code unconfirmed" }, { CC_PIN_VB_NOT_REQ, "Video blanking not required" }, { CC_PIN_CSA, "Content still CSA scrambled" }, { 0, NULL } }; static const value_string dvbci_cc_op_mode[] = { { CC_OP_MODE_WATCH_BUFFER, "Watch and buffer" }, { CC_OP_MODE_TIMESHIFT, "Timeshift" }, { CC_OP_MODE_UNATTENDED, "Unattended recording" }, { 0, NULL } }; static const value_string dvbci_ack_code[] = { { ACK_CODE_OK, "Ok" }, { ACK_CODE_WRONG_API, "Application Domain unsupported" }, { ACK_CODE_API_BUSY, "Application Domain currently unavailable" }, { 0, NULL } }; static const value_string dvbci_req_type[] = { { REQ_TYPE_FILE, "File" }, { REQ_TYPE_DATA, "Data" }, { REQ_TYPE_FILE_HASH, "FileHash" }, { REQ_TYPE_REQ, "List supported request types" }, { 0, NULL } }; static const value_string dvbci_comms_cmd_id[] = { { COMMS_CMD_ID_CONNECT_ON_CHANNEL, "connect on channel" }, { COMMS_CMD_ID_DISCONNECT_ON_CHANNEL, "disconnect on channel" }, { COMMS_CMD_ID_SET_PARAMS, "set parameters" }, { COMMS_CMD_ID_ENQUIRE_STATUS, "status enquiry" }, { COMMS_CMD_ID_GET_NEXT_BUFFER, "get next buffer" }, { 0, NULL } }; static const value_string dvbci_conn_desc_type[] = { { CONN_DESC_TEL, "DVB-SI telephone descriptor" }, { CONN_DESC_CABLE, "cable return channel" }, { CONN_DESC_IP, "IP descriptor" }, { CONN_DESC_HOSTNAME, "hostname descriptor" }, { 0, NULL } }; static const value_string dvbci_lsc_desc_tag[] = { { LSC_DESC_IP, "IP descriptor" }, { LSC_DESC_HOSTNAME, "hostname descriptor" }, { 0, NULL } }; static const value_string dvbci_lsc_ip_ver[] = { { LSC_IPV4, "IPv4" }, { LSC_IPV6, "IPv6" }, { 0, NULL } }; static const value_string dvbci_lsc_proto[] = { { LSC_TCP, "TCP" }, { LSC_UDP, "UDP" }, { 0, NULL } }; static const value_string dvbci_comms_rep_id[] = { { COMMS_REP_ID_CONNECT_ACK, "connect ack" }, { COMMS_REP_ID_DISCONNECT_ACK, "disconnect ack" }, { COMMS_REP_ID_SET_PARAMS_ACK, "set parameters ack" }, { COMMS_REP_ID_STATUS_REPLY, "status reply" }, { COMMS_REP_ID_GET_NEXT_BUFFER_ACK, "get next buffer ack" }, { COMMS_REP_ID_SEND_ACK, "send ack" }, { 0, NULL } }; static const value_string dvbci_lsc_ret_val[] = { { LSC_RET_OK, "ok" }, { 0, NULL } }; static const value_string dvbci_lsc_ret_val_connect[] = { { LSC_RET_DISCONNECTED, "disconnected" }, { LSC_RET_CONNECTED, "connected" }, { 0, NULL } }; static const value_string dvbci_lsc_ret_val_params[] = { { LSC_RET_OK, "ok" }, { LSC_RET_TOO_BIG, "buffer size too big" }, { 0, NULL } }; static const value_string dvbci_sas_sess_state[] = { { SAS_SESS_STATE_CONNECTED, "connected" }, { SAS_SESS_STATE_NOT_FOUND, "application not found" }, { SAS_SESS_STATE_DENIED, "denied, no more connections available" }, { 0, NULL } }; static guint16 buf_size_cam; /* buffer size proposal by the CAM */ /* buffer size proposal by the host == negotiated buffer size */ static guint16 buf_size_host; /* this must be a function, not a macro, so that we can enforce the return type */ static inline gint16 two_comp_to_int16(guint16 x) { return (x&0x8000) ? -~(x-1) : x; } /* initialize/reset per capture state data */ static void dvbci_init(void) { buf_size_cam = 0; buf_size_host = 0; fragment_table_init(&tpdu_fragment_table); reassembled_table_init(&tpdu_reassembled_table); fragment_table_init(&spdu_fragment_table); reassembled_table_init(&spdu_reassembled_table); } /* dissect a delivery system descriptor loop and the preceding length field (used for host control and operator profile) return the number of bytes dissected */ static gint dissect_desc_loop(int len_hf, tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { gint offset_start; guint16 desc_loop_len; guint desc_len; offset_start = offset; desc_loop_len = tvb_get_ntohs(tvb, offset) & 0x0FFF; proto_tree_add_item(tree, len_hf, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; while (offset-offset_start < 2+desc_loop_len) { desc_len = proto_mpeg_descriptor_dissect(tvb, offset, tree); if (desc_len==0) break; offset += desc_len; } return offset-offset_start; } /* dissect operator profile's status body, return its length */ static gint dissect_opp_status_body(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { gint offset_start; offset_start = offset; proto_tree_add_item(tree, hf_dvbci_info_ver_op_status, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_nit_ver, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_pro_typ, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_init_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_ent_chg_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_ent_val_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_ref_req_flag, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_err_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_dlv_sys_hint, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_refr_req_date, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(tree, hf_dvbci_refr_req_time, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; return offset-offset_start; } /* dissect a capability loop in an operator_search_start apdu */ static gint dissect_opp_cap_loop(guint8 cap_loop_len, const gchar *title, int item_hf, guint item_len, tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { proto_item *ti = NULL; proto_tree *loop_tree = NULL; guint i; if (!title) return -1; if (item_len==0 || cap_loop_len%item_len != 0) return -1; if (tree && cap_loop_len>0) { ti = proto_tree_add_text(tree, tvb, offset, cap_loop_len, "%s", title); loop_tree = proto_item_add_subtree(ti, ett_dvbci_opp_cap_loop); } for (i=0; isecs = (tvb_get_ntohs(tvb, offset) - 40587) * 86400; bcd_time_offset = offset+2; hour = BCD44_TO_DEC(tvb_get_guint8(tvb, bcd_time_offset)); min = BCD44_TO_DEC(tvb_get_guint8(tvb, bcd_time_offset+1)); sec = BCD44_TO_DEC(tvb_get_guint8(tvb, bcd_time_offset+2)); if (hour>23 || min>59 || sec>59) return -1; utc_time->secs += hour*3600 + min*60 + sec; return 5; } /* dissect age rating byte encoded as defined in DVB-SI parental rating descriptor returns rating's length in bytes or -1 for error */ static gint dissect_rating(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { guint8 rating; rating = tvb_get_guint8(tvb, offset); if (1<=rating && rating<=0x0F) { proto_tree_add_uint_format(tree, hf_dvbci_rating, tvb, offset, 1, rating, "Rating is %d years (%d+3)", rating+3, rating); } else { proto_tree_add_uint_format(tree, hf_dvbci_rating, tvb, offset, 1, rating, "Rating is unknown/undefined (%d)", rating); } return 1; } /* dissect a connection_descriptor for the lsc resource returns its length or -1 for error */ static gint dissect_conn_desc(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { proto_item *ti = NULL; proto_tree *conn_desc_tree = NULL; guint32 tag; gint offset_start, offset_body; gint len_field; guint8 conn_desc_type; guint8 ip_ver, ip_proto; guint16 port; proto_item *port_item = NULL; gint hostname_len; offset_start = offset; tag = tvb_get_ntoh24(tvb, offset); if (tag!= T_CONNECTION_DESCRIPTOR) return 0; if (tree) { ti = proto_tree_add_text(tree, tvb, offset_start, -1, "Connection descriptor"); conn_desc_tree = proto_item_add_subtree(ti, ett_dvbci_lsc_conn_desc); } proto_tree_add_item(conn_desc_tree, hf_dvbci_apdu_tag, tvb, offset, APDU_TAG_SIZE, ENC_BIG_ENDIAN); offset += APDU_TAG_SIZE; offset = dissect_ber_length(pinfo, conn_desc_tree, tvb, offset, &len_field, NULL); offset_body = offset; conn_desc_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(conn_desc_tree, hf_dvbci_conn_desc_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (conn_desc_type == CONN_DESC_IP) { proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_media_tag, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_media_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; ip_ver = tvb_get_guint8(tvb, offset); proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_ip_ver, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (ip_ver == LSC_IPV4) { offset += FT_IPv6_LEN-FT_IPv4_LEN; proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_ipv4_addr, tvb, offset, FT_IPv4_LEN, ENC_BIG_ENDIAN); offset += FT_IPv4_LEN; } else if (ip_ver == LSC_IPV6) { proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_ipv6_addr, tvb, offset, FT_IPv6_LEN, ENC_NA); offset += FT_IPv6_LEN; } else offset += FT_IPv6_LEN; port = tvb_get_ntohs(tvb, offset); port_item = proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_dst_port, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; ip_proto = tvb_get_guint8(tvb, offset); proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_proto, tvb, offset, 1, ENC_BIG_ENDIAN); offset ++; if (port_item) { if (ip_proto==LSC_TCP && get_tcp_port(port)) { proto_item_append_text(port_item, " (%s)", get_tcp_port(port)); } else if (ip_proto==LSC_UDP && get_udp_port(port)) { proto_item_append_text(port_item, " (%s)", get_udp_port(port)); } } } else if (conn_desc_type == CONN_DESC_HOSTNAME) { proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_media_tag, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_media_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; ip_proto = tvb_get_guint8(tvb, offset); proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_proto, tvb, offset, 1, ENC_BIG_ENDIAN); offset ++; port = tvb_get_ntohs(tvb, offset); port_item = proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_dst_port, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; if (port_item) { if (ip_proto==LSC_TCP && get_tcp_port(port)) { proto_item_append_text(port_item, " (%s)", get_tcp_port(port)); } else if (ip_proto==LSC_UDP && get_udp_port(port)) { proto_item_append_text(port_item, " (%s)", get_udp_port(port)); } } /* everything from here to the descriptor's end is a hostname */ hostname_len = (offset_body+len_field)-offset; proto_tree_add_item(conn_desc_tree, hf_dvbci_lsc_hostname, tvb, offset, hostname_len, ENC_ASCII|ENC_NA); offset += hostname_len; } else { proto_tree_add_text(conn_desc_tree, tvb, offset, len_field-1, "media specific data"); offset += len_field-1; } if (ti) proto_item_set_len(ti, offset-offset_start); return offset-offset_start; } /* dissect an item from cc_data_req/cc_data_cnf, returns its length or -1 for error */ static gint dissect_cc_item(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { proto_item *ti = NULL; proto_tree *cc_item_tree = NULL; gint offset_start; guint16 dat_len; guint8 dat_id; asn1_ctx_t asn1_ctx; int hf_cert_index; guint8 emi; guint16 prog_num; offset_start = offset; if (tree) { ti = proto_tree_add_text(tree, tvb, offset_start, -1, "CC data item"); cc_item_tree = proto_item_add_subtree(ti, ett_dvbci_cc_item); } dat_id = tvb_get_guint8(tvb, offset); proto_tree_add_item(cc_item_tree, hf_dvbci_cc_dat_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; dat_len = tvb_get_ntohs(tvb, offset); proto_tree_add_text(cc_item_tree, tvb, offset, 2, "Length: %d", dat_len); offset += 2; switch (dat_id) { case CC_ID_HOST_BRAND_CERT: case CC_ID_CICAM_BRAND_CERT: case CC_ID_HOST_DEV_CERT: case CC_ID_CICAM_DEV_CERT: asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo); hf_cert_index = (dat_id==CC_ID_HOST_BRAND_CERT || dat_id==CC_ID_CICAM_BRAND_CERT) ? hf_dvbci_brand_cert : hf_dvbci_dev_cert; dissect_x509af_Certificate(FALSE, tvb, offset, &asn1_ctx, cc_item_tree, hf_cert_index); break; case CC_ID_URI: col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "URI"); proto_tree_add_item(cc_item_tree, hf_dvbci_uri_ver, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(cc_item_tree, hf_dvbci_uri_aps, tvb, offset+1, 1, ENC_BIG_ENDIAN); emi = (tvb_get_guint8(tvb, offset+1) & 0x30) >> 4; proto_tree_add_item(cc_item_tree, hf_dvbci_uri_emi, tvb, offset+1, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "EMI 0x%x", emi); proto_tree_add_item(cc_item_tree, hf_dvbci_uri_ict, tvb, offset+1, 1, ENC_BIG_ENDIAN); if (emi==0) { proto_tree_add_item(cc_item_tree, hf_dvbci_uri_rct, tvb, offset+1, 1, ENC_BIG_ENDIAN); } /* digital only token and retention limit will be added */ break; case CC_ID_PROG_NUM: prog_num = tvb_get_ntohs(tvb, offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Program number 0x%x", prog_num); break; case CC_ID_KEY_REGISTER: proto_tree_add_item(cc_item_tree, hf_dvbci_cc_key_register, tvb, offset, 1, ENC_BIG_ENDIAN); break; case CC_ID_STATUS_FIELD: case CC_ID_REC_START_STATUS: case CC_ID_MODE_CHG_STATUS: case CC_ID_REC_STOP_STATUS: proto_tree_add_item(cc_item_tree, hf_dvbci_cc_status_field, tvb, offset, 1, ENC_BIG_ENDIAN); break; case CC_ID_OPERATING_MODE: proto_tree_add_item(cc_item_tree, hf_dvbci_cc_op_mode, tvb, offset, 1, ENC_BIG_ENDIAN); break; default: proto_tree_add_item(cc_item_tree, hf_dvbci_cc_data, tvb, offset, dat_len, ENC_NA); break; } offset += dat_len; if (ti) proto_item_set_len(ti, offset-offset_start); return offset-offset_start; } static gint dissect_cc_data_payload(guint32 tag, tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { gint offset_start; guint8 i, snd_dat_nbr, req_dat_nbr; gint item_len; offset_start = offset; proto_tree_add_item( tree, hf_dvbci_cc_sys_id_bitmask, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; snd_dat_nbr = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Number of sent data items: %d", snd_dat_nbr); offset++; for(i=0; i0; i++) { item_len = dissect_cc_item(tvb, offset, pinfo, tree); if (item_len < 0) return -1; offset += item_len; } if (tag==T_CC_DATA_REQ || tag==T_CC_SAC_DATA_REQ) { req_dat_nbr = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Number of requested data items: %d", req_dat_nbr); offset++; for(i=0; i0; i++) { proto_tree_add_item( tree, hf_dvbci_cc_dat_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } } return offset-offset_start; } #ifdef HAVE_LIBGCRYPT /* convert a 0-terminated preference key_string that contains a hex number * into its binary representation * e.g. key_string "abcd" will be converted into two bytes 0xab, 0xcd * return the number of binary bytes or -1 for error */ static gint pref_key_string_to_bin(const gchar *key_string, unsigned char **key_bin) { int key_string_len; int i, j; char input[2]; if (!key_string || !key_bin) return -1; key_string_len = (int)strlen(key_string); if (key_string_len != 2*AES_KEY_LEN) return -1; *key_bin = (unsigned char*)g_malloc(key_string_len/2); j=0; for (i=0; i=0x01 && byte0<=0x0F) { proto_tree_add_item(tree, hf_dvbci_char_tbl, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; str_len--; } else if (byte0>=0x10 && byte0 <= 0x1F) { pi = proto_tree_add_text(tree, tvb, offset, 1, "Invalid/unsupported character table"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Character tables with multi-byte encoding are not supported"); offset++; str_len--; proto_tree_add_text(tree, tvb, offset, str_len, "encoded text"); return; } /* for now, control characters are supported only at the beginning * of a string (this should cover all cases found in practice) */ else if (byte0>=0x80 && byte0<=0x9F) { proto_tree_add_item(tree, hf_dvbci_text_ctrl, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; str_len--; } si_str = tvb_get_ephemeral_string(tvb, offset, str_len); if (!si_str) return; proto_tree_add_text(tree, tvb, offset, str_len, "%s: %s", title, si_str); if (show_col_info) col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "%s", si_str); } /* dissect ca_enable_flag and ca_enable fields in the ca_pmt_reply * return true if descrambling is possible, false otherwise */ static gboolean dissect_ca_enable(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { gboolean desc_ok = FALSE; guint8 byte, ca_enab; byte = tvb_get_guint8(tvb,offset); proto_tree_add_item(tree, hf_dvbci_ca_enable_flag, tvb, offset, 1, ENC_BIG_ENDIAN); if (byte&0x80) { ca_enab = byte & ~0x80; proto_tree_add_item(tree, hf_dvbci_ca_enable, tvb, offset, 1, ENC_BIG_ENDIAN); if (ca_enab==CA_ENAB_DESC_OK || ca_enab==CA_ENAB_DESC_OK_PURCHASE || ca_enab==CA_ENAB_DESC_OK_TECH) { desc_ok = TRUE; } } return desc_ok; } /* dissect a ca descriptor in the ca_pmt */ static gint dissect_ca_desc(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { gint offset_start; proto_item *pi; guint8 tag, len_byte; proto_item *ti = NULL; proto_tree *ca_desc_tree = NULL; offset_start = offset; tag = tvb_get_guint8(tvb,offset); if (tag != CA_DESC_TAG) { /* we could skip unknown descriptors and make this a warning */ pi = proto_tree_add_text(tree, tvb, offset, 1, "Invalid descriptor"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "The ca_pmt shall only contain ca descriptors (tag 0x9)"); return 0; } if (tree) { ti = proto_tree_add_text( tree, tvb, offset_start, -1, "Conditional Access descriptor"); ca_desc_tree = proto_item_add_subtree(ti, ett_dvbci_ca_desc); } offset++; len_byte = tvb_get_guint8(tvb,offset); proto_tree_add_item( ca_desc_tree, hf_dvbci_descr_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item( ca_desc_tree, hf_dvbci_ca_sys_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item( ca_desc_tree, hf_dvbci_ca_pid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if ((len_byte-4) != 0) { proto_tree_add_text( ca_desc_tree, tvb, offset, len_byte-4, "private data"); offset += (len_byte-4); } if (ti) proto_item_set_len(ti, offset-offset_start); return offset-offset_start; } /* dissect an elementary stream entry in the ca_pmt */ static gint dissect_es(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { proto_item *ti = NULL; proto_tree *es_tree = NULL; gint offset_start, ca_desc_len; gint es_info_len, all_len; offset_start = offset; if (tree) { ti = proto_tree_add_text( tree, tvb, offset_start, -1, "Elementary Stream"); es_tree = proto_item_add_subtree(ti, ett_dvbci_application); } proto_tree_add_item( es_tree, hf_dvbci_stream_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item( es_tree, hf_dvbci_es_pid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; es_info_len = tvb_get_ntohs(tvb, offset) & 0x0FFF; /* the definition of hf_dvbci_es_info_len also applies the mask */ proto_tree_add_item( es_tree, hf_dvbci_es_info_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (es_info_len != 0) { all_len = offset + es_info_len; proto_tree_add_item( es_tree, hf_dvbci_ca_pmt_cmd_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; while (offset < all_len) { ca_desc_len = dissect_ca_desc(tvb, offset, pinfo, es_tree); if (ca_desc_len <= 0) return -1; offset += ca_desc_len; } } else { proto_tree_add_text( es_tree, tvb, 0, 0, "No CA descriptors for this elementary stream"); } if (ti) proto_item_set_len(ti, offset-offset_start); return offset-offset_start; } /* dissect a text pseudo-apdu */ static gint dissect_dvbci_text(const gchar *title, tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree) { proto_item *ti = NULL; proto_tree *text_tree; guint32 tag; gint offset_start; gint len_field; offset_start = offset; if (!title) return 0; /* check the tag before setting up the tree */ tag = tvb_get_ntoh24(tvb, offset); if (tag!=T_TEXT_LAST && tag!=T_TEXT_MORE) return 0; ti = proto_tree_add_text(tree, tvb, offset_start, -1, "%s", title); text_tree = proto_item_add_subtree(ti, ett_dvbci_text); proto_tree_add_item(text_tree, hf_dvbci_apdu_tag, tvb, offset, APDU_TAG_SIZE, ENC_BIG_ENDIAN); offset += APDU_TAG_SIZE; offset = dissect_ber_length(pinfo, text_tree, tvb, offset, &len_field, NULL); dissect_si_string(tvb, offset, len_field, pinfo, text_tree, "Text", FALSE); offset += len_field; if (ti) proto_item_set_len(ti, offset-offset_start); return (offset-offset_start); } static proto_item * dissect_res_id(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint32 res_id, gboolean show_col_info) { proto_item *ti = NULL; proto_tree *res_tree = NULL; gint tvb_data_len; /* there's two possible inputs for this function the resource id is either in a tvbuff_t (tvb!=NULL, res_id==0) or in a guint32 (tvb==NULL, res_id!=0) */ if (tvb) { /* resource id comes in via tvbuff */ if (res_id!=0) return NULL; res_id = tvb_get_ntohl(tvb, offset); tvb_data_len = RES_ID_LEN; } else { /* resource id comes in via guint32 */ if (res_id==0) return NULL; /* we'll call proto_tree_add_...( tvb==NULL, offset==0, length==0 ) this creates a filterable item without any reference to a tvb */ offset = 0; tvb_data_len = 0; } if (show_col_info) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s Version %d", val_to_str_const(RES_CLASS(res_id), dvbci_res_class, "Invalid Resource class"), RES_VER(res_id)); } if (tree) { ti = proto_tree_add_text(tree, tvb, offset, tvb_data_len, "Resource ID: 0x%04x", res_id); res_tree = proto_item_add_subtree(ti, ett_dvbci_res); /* parameter "value" == complete resource id, RES_..._MASK will be applied by the hf definition */ proto_tree_add_uint_format(res_tree, hf_dvbci_res_id_type, tvb, offset, tvb_data_len, res_id, "%s", decode_numeric_bitfield(res_id, RES_ID_TYPE_MASK, 32, "Resource ID Type: 0x%x")); proto_tree_add_uint_format(res_tree, hf_dvbci_res_class, tvb, offset, tvb_data_len, res_id, "%s (%s)", decode_numeric_bitfield(res_id, RES_CLASS_MASK, 32, "Resource Class: 0x%x"), val_to_str_const(RES_CLASS(res_id), dvbci_res_class, "Invalid Resource class")); proto_tree_add_uint_format(res_tree, hf_dvbci_res_type, tvb, offset, tvb_data_len, res_id, "%s", decode_numeric_bitfield(res_id, RES_TYPE_MASK, 32, "Resource Type: 0x%x")); proto_tree_add_uint_format(res_tree, hf_dvbci_res_ver, tvb, offset, tvb_data_len, res_id, "%s", decode_numeric_bitfield(res_id, RES_VER_MASK, 32, "Resource Version: 0x%x")); } return ti; } /* dissect the body of a resource manager apdu */ static void dissect_dvbci_payload_rm(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { const gchar *tag_str; proto_item *pi; if (tag==T_PROFILE) { if (len_field % RES_ID_LEN) { tag_str = val_to_str(tag, dvbci_apdu_tag, "Unknown: %d"); pi = proto_tree_add_text(tree, tvb, 0, APDU_TAG_SIZE, "Invalid APDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field for %s must be a multiple of 4 bytes", tag_str); return; } while (tvb_reported_length_remaining(tvb, offset) > 0) { dissect_res_id(tvb, offset, pinfo, tree, 0, FALSE); offset += RES_ID_LEN; } } } static void dissect_dvbci_payload_ap(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint8 menu_str_len; guint8 *menu_string; guint8 data_rate; if (tag==T_APP_INFO) { proto_tree_add_item(tree, hf_dvbci_app_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item( tree, hf_dvbci_app_manf, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; proto_tree_add_item( tree, hf_dvbci_manf_code, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; menu_str_len = tvb_get_guint8(tvb,offset); proto_tree_add_item( tree, hf_dvbci_menu_str_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* ephemeral -> string is freed automatically when dissection of this packet is finished tvb_get_ephemeral_string() always returns a 0-terminated string */ menu_string = tvb_get_ephemeral_string(tvb, offset, menu_str_len); if (menu_string) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Module name %s", menu_string); proto_tree_add_text(tree, tvb, offset, menu_str_len, "Menu string: %s", menu_string); } } else if (tag== T_DATARATE_INFO) { data_rate = tvb_get_guint8(tvb, offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(data_rate, dvbci_data_rate, "unknown (0x%x)")); proto_tree_add_item(tree, hf_dvbci_data_rate, tvb, offset, 1, ENC_BIG_ENDIAN); } } static void dissect_dvbci_payload_ca(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { const gchar *tag_str; proto_item *pi; guint16 prog_num; guint8 byte; guint prog_info_len; gint es_info_len, all_len; gint ca_desc_len; proto_tree *es_tree = NULL; gboolean desc_ok = FALSE; if (tag==T_CA_INFO) { if (len_field % 2) { tag_str = val_to_str(tag, dvbci_apdu_tag, "Unknown: %d"); pi = proto_tree_add_text(tree, tvb, 0, APDU_TAG_SIZE, "Invalid APDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field for %s must be a multiple of 2 bytes", tag_str); return; } while (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item( tree, hf_dvbci_ca_sys_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } } else if (tag==T_CA_PMT) { proto_tree_add_item( tree, hf_dvbci_ca_pmt_list_mgmt, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; prog_num = tvb_get_ntohs(tvb, offset); col_append_sep_fstr( pinfo->cinfo, COL_INFO, NULL, "Program number %x", prog_num); proto_tree_add_item( tree, hf_dvbci_prog_num, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; byte = tvb_get_guint8(tvb,offset); proto_tree_add_text(tree, tvb, offset, 1, "Version number: 0x%x, Current-next indicator: 0x%x", (byte&0x3E) >> 1, byte&0x01); offset++; prog_info_len = tvb_get_ntohs(tvb, offset) & 0x0FFF; /* the definition of hf_dvbci_prog_info_len also applies the mask */ proto_tree_add_item( tree, hf_dvbci_prog_info_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (prog_info_len != 0) { all_len = offset + prog_info_len; proto_tree_add_item( tree, hf_dvbci_ca_pmt_cmd_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; while (offset < all_len) { ca_desc_len = dissect_ca_desc(tvb, offset, pinfo, tree); if (ca_desc_len <= 0) return; offset += ca_desc_len; } } else { proto_tree_add_text( tree, tvb, 0, 0, "No CA descriptors at program level"); } while (tvb_reported_length_remaining(tvb, offset) > 0) { es_info_len = dissect_es(tvb, offset, pinfo, tree); if (es_info_len <= 0) return; offset += es_info_len; } } else if (tag==T_CA_PMT_REPLY) { prog_num = tvb_get_ntohs(tvb, offset); col_append_sep_fstr( pinfo->cinfo, COL_INFO, NULL, "Program number %x", prog_num); proto_tree_add_item( tree, hf_dvbci_prog_num, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; byte = tvb_get_guint8(tvb,offset); proto_tree_add_text(tree, tvb, offset, 1, "Version number: 0x%x, Current-next indicator: 0x%x", (byte&0x3E) >> 1, byte&0x01); offset++; desc_ok |= dissect_ca_enable(tvb, offset, pinfo, tree); offset++; while (tvb_reported_length_remaining(tvb, offset) > 0) { /* there's no need to check for tree==NULL */ pi = proto_tree_add_text(tree, tvb, offset, 3, "Elementary Stream"); es_tree = proto_item_add_subtree(pi, ett_dvbci_application); proto_tree_add_item(es_tree, hf_dvbci_es_pid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; desc_ok |= dissect_ca_enable(tvb, offset, pinfo, es_tree); offset++; } if (desc_ok) { col_append_sep_fstr( pinfo->cinfo, COL_INFO, NULL, "descrambling possible"); } } } static void dissect_dvbci_payload_aut(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo _U_, proto_tree *tree) { gint bytes_len; proto_tree_add_item(tree, hf_dvbci_auth_proto_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; bytes_len = tvb_reported_length_remaining(tvb, offset); if (bytes_len <= 0) return; if (tag==T_AUTH_REQ) { proto_tree_add_item(tree, hf_dvbci_auth_req_bytes, tvb, offset, bytes_len, ENC_NA); } else if (tag==T_AUTH_RESP) { proto_tree_add_item(tree, hf_dvbci_auth_resp_bytes, tvb, offset, bytes_len, ENC_NA); } } static void dissect_dvbci_payload_hc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { proto_item *pi; guint16 nid, onid, tsid, svcid; guint8 ref; guint16 old_pid, new_pid; gboolean pmt_flag; gint desc_loop_len; dissector_table_t mpeg_sect_tid_dissector_table = NULL; guint8 table_id; tvbuff_t *pmt_tvb = NULL; guint8 status; switch (tag) { case T_TUNE: nid = tvb_get_ntohs(tvb, offset); pi = proto_tree_add_item( tree, hf_dvbci_network_id, tvb, offset, 2, ENC_BIG_ENDIAN); if (nid) { expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_NOTE, "Network ID is usually ignored by hosts"); } offset += 2; onid = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_dvbci_original_network_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; tsid = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_dvbci_transport_stream_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; svcid = tvb_get_ntohs(tvb, offset); proto_tree_add_item( tree, hf_dvbci_service_id, tvb, offset, 2, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "nid 0x%x, onid 0x%x, tsid 0x%x, svcid 0x%x", nid, onid, tsid, svcid); break; case T_REPLACE: ref = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_replacement_ref, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; old_pid = tvb_get_ntohs(tvb, offset) & 0x1FFF; proto_tree_add_item(tree, hf_dvbci_replaced_pid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; new_pid = tvb_get_ntohs(tvb, offset) & 0x1FFF; proto_tree_add_item( tree, hf_dvbci_replacement_pid, tvb, offset, 2, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "ref 0x%x, 0x%x -> 0x%x", ref, old_pid, new_pid); break; case T_CLEAR_REPLACE: ref = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_replacement_ref, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "ref 0x%x", ref); break; case T_TUNE_BROADCAST_REQ: pmt_flag = ((tvb_get_guint8(tvb, offset) & 0x01) == 0x01); proto_tree_add_item(tree, hf_dvbci_pmt_flag, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item( tree, hf_dvbci_service_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; desc_loop_len = dissect_desc_loop(hf_dvbci_hc_desc_loop_len, tvb, offset, pinfo, tree); if (desc_loop_len<0) break; offset += desc_loop_len; if (pmt_flag) { table_id = tvb_get_guint8(tvb, offset); mpeg_sect_tid_dissector_table = find_dissector_table("mpeg_sect.tid"); pmt_tvb = tvb_new_subset(tvb, offset, tvb_reported_length_remaining(tvb, offset), tvb_reported_length_remaining(tvb, offset)); if (mpeg_sect_tid_dissector_table && pmt_tvb) { col_append_fstr(pinfo->cinfo, COL_INFO, ", "); /* prevent mpeg_pmt dissector from clearing col_info */ col_set_fence(pinfo->cinfo, COL_INFO); dissector_try_uint(mpeg_sect_tid_dissector_table, (const guint32)table_id, pmt_tvb, pinfo, tree); } } break; case T_TUNE_REPLY: status = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_hc_status, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", (status == HC_STAT_OK ? "ok" : "error")); break; default: break; } } static void dissect_dvbci_payload_dt(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { nstime_t resp_intv; proto_item *pi = NULL; const gchar *tag_str; gint time_field_len; nstime_t utc_time; gint16 local_offset; /* field in the apdu */ if (tag==T_DATE_TIME_ENQ) { nstime_set_zero(&resp_intv); resp_intv.secs = tvb_get_guint8(tvb, offset); pi = proto_tree_add_time_format(tree, hf_dvbci_resp_intv, tvb, offset, 1, &resp_intv, "Response interval is %s", rel_time_to_str(&resp_intv)); if (resp_intv.secs==0) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "individual query"); if (pi) proto_item_append_text(pi, " (individual query)"); } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "update every %s", rel_time_to_str(&resp_intv)); } } else if (tag==T_DATE_TIME) { if (len_field!=5 && len_field!=7) { tag_str = match_strval(tag, dvbci_apdu_tag); pi = proto_tree_add_text(tree, tvb, APDU_TAG_SIZE, offset-APDU_TAG_SIZE, "Invalid APDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field for %s must be 5 or 7 bytes", tag_str); return; } time_field_len = read_utc_time(tvb, offset, &utc_time); if (time_field_len<0) { pi = proto_tree_add_text( tree, tvb, offset, 5, "Invalid UTC time field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "2 bytes MJD, 3 bytes BCD time hhmmss"); return; } proto_tree_add_time_format(tree, hf_dvbci_utc_time, tvb, offset, time_field_len, &utc_time, "%s UTC", abs_time_to_str(&utc_time, ABSOLUTE_TIME_UTC, FALSE)); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s UTC", abs_time_to_str(&utc_time, ABSOLUTE_TIME_UTC, FALSE)); offset += time_field_len; if (len_field==7) { local_offset = two_comp_to_int16(tvb_get_ntohs(tvb, offset)); proto_tree_add_int_format(tree, hf_dvbci_local_offset, tvb, offset, 2, local_offset, "offset between UTC and local time is %d minutes", local_offset); } else { proto_tree_add_text(tree, tvb, 0, 0, "Offset between UTC and local time is unknown"); } } } static void dissect_dvbci_payload_mmi(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { gint offset_start; proto_item *pi; guint8 close_mmi_cmd_id; guint8 disp_ctl_cmd, disp_rep_id; const gchar *disp_ctl_cmd_str = NULL, *disp_rep_id_str = NULL; guint8 ans_txt_len; guint8 ans_id; guint8 choice_or_item_nb; gint text_len; guint8 choice_ref; offset_start = offset; switch(tag) { case T_CLOSE_MMI: close_mmi_cmd_id = tvb_get_guint8(tvb,offset); proto_tree_add_item(tree, hf_dvbci_close_mmi_cmd_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* apdu layer len field checks are sufficient for "immediate" */ if (close_mmi_cmd_id == CLOSE_MMI_CMD_ID_DELAY) { if (len_field != 2) { pi = proto_tree_add_text(tree, tvb, APDU_TAG_SIZE, offset_start-APDU_TAG_SIZE, "Length field mismatch"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field must be 2"); return; } proto_tree_add_item(tree, hf_dvbci_close_mmi_delay, tvb, offset, 1, ENC_BIG_ENDIAN); } break; case T_DISPLAY_CONTROL: disp_ctl_cmd = tvb_get_guint8(tvb,offset); disp_ctl_cmd_str = val_to_str(disp_ctl_cmd, dvbci_disp_ctl_cmd, "unknown command"); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", disp_ctl_cmd_str); proto_tree_add_item(tree, hf_dvbci_disp_ctl_cmd, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (disp_ctl_cmd == DISP_CMD_SET_MMI_MODE) { proto_tree_add_item(tree, hf_dvbci_mmi_mode, tvb, offset, 1, ENC_BIG_ENDIAN); if (len_field != 2) { pi = proto_tree_add_text(tree, tvb, APDU_TAG_SIZE, offset_start-APDU_TAG_SIZE, "Length field mismatch"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field must be 2"); return; } } break; case T_DISPLAY_REPLY: disp_rep_id = tvb_get_guint8(tvb,offset); disp_rep_id_str = val_to_str(disp_rep_id, dvbci_disp_rep_id, "unknown command"); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", disp_rep_id_str); proto_tree_add_item(tree, hf_dvbci_disp_rep_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (disp_rep_id == DISP_REP_ID_MMI_MODE_ACK) { proto_tree_add_item(tree, hf_dvbci_mmi_mode, tvb, offset, 1, ENC_BIG_ENDIAN); } else if (disp_rep_id == DISP_REP_ID_DISP_CHAR_TBL || disp_rep_id == DISP_REP_ID_INP_CHAR_TBL) { while (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item(tree, hf_dvbci_char_tbl, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } } break; case T_ENQ: proto_tree_add_item(tree, hf_dvbci_blind_ans, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; ans_txt_len = tvb_get_guint8(tvb,offset); if (ans_txt_len == NB_UNKNOWN) { proto_tree_add_text(tree, tvb, offset, 1, "Length of expected answer is unknown"); } else proto_tree_add_item(tree, hf_dvbci_ans_txt_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; dissect_si_string(tvb, offset, tvb_reported_length_remaining(tvb, offset), pinfo, tree, "Enquiry string", FALSE); break; case T_ANSW: ans_id = tvb_get_guint8(tvb,offset); proto_tree_add_item(tree, hf_dvbci_ans_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (ans_id == ANSW_ID_ANSWER) { dissect_si_string(tvb, offset, tvb_reported_length_remaining(tvb, offset), pinfo, tree, "Answer", TRUE); } break; case T_MENU_LAST: case T_MENU_MORE: case T_LIST_LAST: case T_LIST_MORE: choice_or_item_nb = tvb_get_guint8(tvb,offset); if (choice_or_item_nb == NB_UNKNOWN) { proto_tree_add_text(tree, tvb, offset, 1, "Number of items is unknown"); } else { if (IS_MENU_APDU(tag)) { proto_tree_add_item( tree, hf_dvbci_choice_nb, tvb, offset, 1, ENC_BIG_ENDIAN); } else { proto_tree_add_item( tree, hf_dvbci_item_nb, tvb, offset, 1, ENC_BIG_ENDIAN); } } offset++; text_len = dissect_dvbci_text("Title", tvb, offset, pinfo, tree); offset += text_len; text_len = dissect_dvbci_text("Sub-title", tvb, offset, pinfo, tree); offset += text_len; text_len = dissect_dvbci_text("Bottom line", tvb, offset, pinfo, tree); offset += text_len; while (tvb_reported_length_remaining(tvb, offset) > 0) { text_len = dissect_dvbci_text("Item", tvb, offset, pinfo, tree); /* minimum is apdu tag + 1 byte len field */ if (text_lencinfo, COL_INFO, ": ", "cancelled"); } else { proto_tree_add_item( tree, hf_dvbci_choice_ref, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "Item %d", choice_ref); } break; default: break; } } static void dissect_dvbci_payload_hlc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint8 *str; if (tag==T_HOST_COUNTRY) { proto_tree_add_item(tree, hf_dvbci_host_country, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII|ENC_NA); } else if (tag==T_HOST_LANGUAGE) { proto_tree_add_item(tree, hf_dvbci_host_language, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII|ENC_NA); } /* both apdus' body is only a country code, this can be shared */ str = tvb_get_ephemeral_string(tvb, offset, tvb_reported_length_remaining(tvb, offset)); if (str) col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", str); } static void dissect_dvbci_payload_cup(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint8 upgrade_type; guint16 download_time; guint8 answer, progress; proto_item *pi; switch(tag) { case T_CAM_FIRMWARE_UPGRADE: upgrade_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_cup_type, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "(%s)", val_to_str(upgrade_type, dvbci_cup_type, "unknown")); offset++; download_time = tvb_get_ntohs(tvb, offset); if (download_time == 0) { proto_tree_add_uint_format(tree, hf_dvbci_cup_download_time, tvb, offset, 2, download_time, "estimated download time is unknown"); } else { proto_tree_add_uint_format(tree, hf_dvbci_cup_download_time, tvb, offset, 2, download_time, "estimated download time is %d seconds", download_time); } break; case T_CAM_FIRMWARE_UPGRADE_REPLY: answer = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_cup_answer, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(answer, dvbci_cup_answer, "unknown")); break; case T_CAM_FIRMWARE_UPGRADE_PROGRESS: progress = tvb_get_guint8(tvb, offset); if (progress > 100) { pi = proto_tree_add_text(tree, tvb, offset, 1, "Invalid value for progress"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "progress is in percent, value must be between 0 and 100"); } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%d%%", progress); proto_tree_add_uint_format(tree, hf_dvbci_cup_progress, tvb, offset, 1, progress, "download progress %d%%", progress); } break; case T_CAM_FIRMWARE_UPGRADE_COMPLETE: proto_tree_add_item(tree, hf_dvbci_cup_reset, tvb, offset, 1, ENC_BIG_ENDIAN); break; default: break; } } static void dissect_dvbci_payload_cc(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint8 status; guint32 msg_ctr; guint8 enc_flag, enc_cip; proto_item *pi = NULL, *ti; guint16 sac_payload_len; /* payload data and padding */ gint sac_payload_data_len = 0; /* just payload data */ tvbuff_t *clear_sac_body_tvb; proto_tree *sac_tree = NULL; nstime_t utc_time; guint8 pin_stat; guint8 evt_cent; switch(tag) { case T_CC_OPEN_CNF: proto_tree_add_item(tree, hf_dvbci_cc_sys_id_bitmask, tvb, offset, 1, ENC_BIG_ENDIAN); break; case T_CC_DATA_REQ: case T_CC_DATA_CNF: dissect_cc_data_payload(tag, tvb, offset, pinfo, tree); break; case T_CC_SYNC_CNF: status = tvb_get_guint8(tvb, offset); proto_tree_add_item( tree, hf_dvbci_cc_status_field, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(status, dvbci_cc_status, "unknown")); break; case T_CC_SAC_DATA_REQ: case T_CC_SAC_DATA_CNF: case T_CC_SAC_SYNC_REQ: case T_CC_SAC_SYNC_CNF: /* it's not useful to move sac header dissection to a separate function, we need enc/auth cipher etc here to handle the body */ msg_ctr = tvb_get_ntohl(tvb, offset); proto_tree_add_item( tree, hf_dvbci_sac_msg_ctr, tvb, offset, 4, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "message #%d", msg_ctr); offset += 4; proto_tree_add_item( tree, hf_dvbci_sac_proto_ver, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item( tree, hf_dvbci_sac_auth_cip, tvb, offset, 1, ENC_BIG_ENDIAN); enc_flag = tvb_get_guint8(tvb, offset) & 0x1; proto_tree_add_item( tree, hf_dvbci_sac_payload_enc, tvb, offset, 1, ENC_BIG_ENDIAN); if (enc_flag) col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "encrypted"); offset++; enc_cip = (tvb_get_guint8(tvb, offset)&0xE0) >> 5; proto_tree_add_item( tree, hf_dvbci_sac_enc_cip, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; sac_payload_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item( tree, hf_dvbci_sac_payload_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; if (tvb_reported_length_remaining(tvb, offset) < 0) break; if (!enc_flag) { pi = proto_tree_add_text(tree, tvb, offset, tvb_reported_length_remaining(tvb, offset), "Invalid CI+ SAC message body"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "SAC message body must always be encrypted"); break; } clear_sac_body_tvb = decrypt_sac_msg_body(enc_cip, tvb, offset, tvb_reported_length_remaining(tvb, offset)); if (!clear_sac_body_tvb) { /* we could not decrypt the sac message body */ proto_tree_add_item(tree, hf_dvbci_sac_enc_body, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; } add_new_data_source(pinfo, clear_sac_body_tvb, "Clear SAC message body"); if (sac_payload_len>0) { ti = proto_tree_add_text(tree, clear_sac_body_tvb, 0, sac_payload_len, "SAC message payload"); sac_tree = proto_item_add_subtree(ti, ett_dvbci_sac_msg_body); if (tag==T_CC_SAC_DATA_REQ || tag==T_CC_SAC_DATA_CNF) { sac_payload_data_len = dissect_cc_data_payload(tag, clear_sac_body_tvb, 0, pinfo, sac_tree); } else if (tag==T_CC_SAC_SYNC_REQ) { sac_payload_data_len = 0; } else if (tag==T_CC_SAC_SYNC_CNF) { proto_tree_add_item(sac_tree, hf_dvbci_cc_status_field, clear_sac_body_tvb, 0, 1, ENC_BIG_ENDIAN); sac_payload_data_len = 1; } if (sac_payload_data_len < 0) break; if (sac_payload_len > sac_payload_data_len) { proto_tree_add_text(sac_tree, clear_sac_body_tvb, sac_payload_data_len, sac_payload_len-sac_payload_data_len, "padding"); } } proto_tree_add_item(tree, hf_dvbci_sac_signature, clear_sac_body_tvb, sac_payload_len, tvb_reported_length_remaining(clear_sac_body_tvb, sac_payload_len), ENC_NA); break; case T_CC_PIN_CAPABILITIES_REPLY: proto_tree_add_item(tree, hf_dvbci_capability_field, tvb, offset, 1 , ENC_BIG_ENDIAN); offset++; /* we can't read_utc_time() and check with nstime_is_zero() */ if (tvb_get_ntoh40(tvb, offset) == 0) { proto_tree_add_text(tree, tvb, offset, UTC_TIME_LEN, "CICAM PIN has never been changed"); } else { if (read_utc_time(tvb, offset, &utc_time) < 0) { pi = proto_tree_add_text(tree, tvb, offset, UTC_TIME_LEN, "Invalid UTC time field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "2 bytes MJD, 3 bytes BCD time hhmmss"); break; } else { /* abs_time_to_str() never returns NULL */ proto_tree_add_time_format(tree, hf_dvbci_pin_chg_time, tvb, offset, UTC_TIME_LEN, &utc_time, "PIN change time %s UTC", abs_time_to_str(&utc_time, ABSOLUTE_TIME_UTC, FALSE)); } } offset += UTC_TIME_LEN; dissect_rating(tvb, offset, pinfo, tree); break; case T_CC_PIN_REPLY: pin_stat = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_pincode_status, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(pin_stat, dvbci_pincode_status, "unknown")); break; case T_CC_PIN_EVENT: proto_tree_add_item(tree, hf_dvbci_cc_prog_num, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(tree, hf_dvbci_pincode_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; dissect_rating(tvb, offset, pinfo, tree); offset++; if (read_utc_time(tvb, offset, &utc_time) < 0) { pi = proto_tree_add_text(tree, tvb, offset, UTC_TIME_LEN, "Invalid UTC time field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "2 bytes MJD, 3 bytes BCD time hhmmss"); break; } else { proto_tree_add_time_format(tree, hf_dvbci_pin_evt_time, tvb, offset, UTC_TIME_LEN, &utc_time, "PIN event time %s UTC", abs_time_to_str(&utc_time, ABSOLUTE_TIME_UTC, FALSE)); } offset += UTC_TIME_LEN; evt_cent = tvb_get_guint8(tvb, offset); if (evt_cent > 100) { pi = proto_tree_add_text(tree, tvb, offset, 1, "Invalid value for event time centiseconds"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Value must be between 0 and 100"); } proto_tree_add_item(tree, hf_dvbci_pin_evt_cent, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* length field was already checked by the caller */ proto_tree_add_item(tree, hf_dvbci_cc_priv_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; case T_CC_PIN_PLAYBACK: dissect_rating(tvb, offset, pinfo, tree); offset++; /* length field was already checked by the caller */ proto_tree_add_item(tree, hf_dvbci_cc_priv_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; case T_CC_PIN_CMD: case T_CC_PIN_MMI_REQ: proto_tree_add_item(tree, hf_dvbci_pincode, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII|ENC_NA); break; default: break; } } static void dissect_dvbci_payload_ami(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint8 app_dom_id_len, init_obj_len; guint8 *app_dom_id; guint8 ack_code; gboolean req_ok = FALSE, file_ok; guint8 req_type; guint8 *req_str; guint8 file_name_len; guint8 *file_name_str; guint32 file_data_len; proto_item *ti = NULL; proto_tree *req_tree = NULL; switch(tag) { case T_REQUEST_START: /* no filter for length items */ app_dom_id_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Application Domain Identifier length %d", app_dom_id_len); offset++; init_obj_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Initial Object length %d", init_obj_len); offset++; proto_tree_add_item(tree, hf_dvbci_app_dom_id, tvb, offset, app_dom_id_len, ENC_ASCII|ENC_NA); app_dom_id = tvb_get_ephemeral_string(tvb, offset, app_dom_id_len); if (app_dom_id) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "for %s", app_dom_id); } offset += app_dom_id_len; proto_tree_add_item(tree, hf_dvbci_init_obj, tvb, offset, init_obj_len, ENC_ASCII|ENC_NA); break; case T_REQUEST_START_ACK: ack_code = tvb_get_guint8(tvb, offset); proto_tree_add_item( tree, hf_dvbci_ack_code, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(ack_code, dvbci_ack_code, "unknown")); break; case T_FILE_REQUEST: req_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_req_type, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(req_type, dvbci_req_type, "unknown")); offset++; if (req_type==REQ_TYPE_FILE_HASH) { proto_tree_add_item(tree, hf_dvbci_file_hash, tvb, offset, 16, ENC_NA); offset += 16; } if (tvb_reported_length_remaining(tvb, offset) <= 0) break; if (req_type==REQ_TYPE_FILE || req_type==REQ_TYPE_FILE_HASH) { req_str = tvb_get_ephemeral_string(tvb, offset, tvb_reported_length_remaining(tvb, offset)); if (!req_str) break; col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "%s", req_str); proto_tree_add_string_format_value(tree, hf_dvbci_file_name, tvb, offset, tvb_reported_length_remaining(tvb, offset), req_str, "%s", req_str); } else if (req_type==REQ_TYPE_DATA) { proto_tree_add_item(tree, hf_dvbci_ami_priv_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); } break; case T_FILE_ACKNOWLEDGE: req_type = tvb_get_guint8(tvb, offset+1); if (req_type==REQ_TYPE_FILE_HASH) { req_ok = ((tvb_get_guint8(tvb, offset) & 0x02) == 0x02); proto_tree_add_item(tree, hf_dvbci_req_ok, tvb, offset, 1, ENC_BIG_ENDIAN); } file_ok = ((tvb_get_guint8(tvb, offset) & 0x01) == 0x01); proto_tree_add_item(tree, hf_dvbci_file_ok, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_req_type, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(req_type, dvbci_req_type, "unknown")); offset++; if (req_type==REQ_TYPE_FILE || req_type==REQ_TYPE_FILE_HASH) { file_name_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "File name length %d", file_name_len); offset++; file_name_str = tvb_get_ephemeral_string( tvb, offset, file_name_len); if (!file_name_str) break; col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "%s", file_name_str); proto_tree_add_string_format_value(tree, hf_dvbci_file_name, tvb, offset, file_name_len, file_name_str, "%s", file_name_str); offset += file_name_len; file_data_len = tvb_get_ntohl(tvb, offset); proto_tree_add_text(tree, tvb, offset, 4, "File data length %d", file_data_len); offset += 4; if (file_data_len > 0) { proto_tree_add_item(tree, hf_dvbci_file_data, tvb, offset, file_data_len, ENC_NA); } } else if (req_type==REQ_TYPE_DATA) { if (tvb_reported_length_remaining(tvb, offset) <= 0) break; proto_tree_add_item(tree, hf_dvbci_ami_priv_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); } else if (req_type==REQ_TYPE_REQ) { if (tree) { ti = proto_tree_add_text(tree, tvb, offset, tvb_reported_length_remaining(tvb, offset), "Supported request types"); req_tree = proto_item_add_subtree( ti, ett_dvbci_ami_req_types); } while (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item(req_tree, hf_dvbci_req_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } } if (req_type==REQ_TYPE_FILE_HASH && req_ok && !file_ok) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "cached copy is valid"); } break; case T_APP_ABORT_REQUEST: if (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item(tree, hf_dvbci_abort_req_code, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); } break; case T_APP_ABORT_ACK: if (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item(tree, hf_dvbci_abort_ack_code, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); } break; default: break; } } static void dissect_dvbci_payload_lsc(guint32 tag, gint len_field, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { gint offset_start; guint8 id, timeout, ret_val, phase_id; gint conn_desc_len, param_len; guint16 buf_size; proto_item *pi = NULL; const gchar *ret_val_str = NULL; offset_start = offset; switch(tag) { case T_COMMS_CMD: proto_tree_add_item(tree, hf_dvbci_comms_cmd_id, tvb, offset, 1, ENC_BIG_ENDIAN); id = tvb_get_guint8(tvb, offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", val_to_str(id, dvbci_comms_cmd_id, "Unknown: %d")); offset++; switch(id) { case COMMS_CMD_ID_CONNECT_ON_CHANNEL: conn_desc_len = dissect_conn_desc(tvb, offset, pinfo, tree); if (conn_desc_len < 0) break; offset += conn_desc_len; proto_tree_add_item(tree, hf_dvbci_lsc_retry_count, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; timeout = tvb_get_guint8(tvb, offset); if (timeout==0) { proto_tree_add_uint_format(tree, hf_dvbci_lsc_timeout, tvb, offset, 1, timeout, "Infinite timeout"); } else { proto_tree_add_uint_format(tree, hf_dvbci_lsc_timeout, tvb, offset, 1, timeout, "Timeout is %d seconds", timeout); } break; case COMMS_CMD_ID_DISCONNECT_ON_CHANNEL: case COMMS_CMD_ID_ENQUIRE_STATUS: /* len_field == 1 -> only id, no further parameters */ if (len_field != 1) { pi = proto_tree_add_text(tree, tvb, APDU_TAG_SIZE, offset_start-APDU_TAG_SIZE, "Length field mismatch"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field must be 1"); } break; case COMMS_CMD_ID_SET_PARAMS: param_len = tvb_reported_length_remaining(tvb, offset); if (param_len == 2) buf_size = (guint16)tvb_get_guint8(tvb, offset); else if (param_len == 3) buf_size = tvb_get_ntohs(tvb, offset); else { pi = proto_tree_add_text(tree, tvb, APDU_TAG_SIZE, offset_start-APDU_TAG_SIZE, "Length field mismatch"); /* length field == 1 byte id + param_len */ expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field must be 3 or 4"); break; } proto_tree_add_uint_format(tree, hf_dvbci_lsc_buf_size, tvb, offset, param_len-1, buf_size, "buffer size %d bytes", buf_size); offset += param_len-1; timeout = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format(tree, hf_dvbci_lsc_timeout, tvb, offset, 1, timeout, "timeout is %d milliseconds", timeout*10); break; case COMMS_CMD_ID_GET_NEXT_BUFFER: phase_id = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format(tree, hf_dvbci_phase_id, tvb, offset, 1, phase_id, "Phase ID %d", phase_id); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "received #%d", phase_id); break; default: break; } break; case T_COMMS_REPLY: proto_tree_add_item(tree, hf_dvbci_comms_rep_id, tvb, offset, 1, ENC_BIG_ENDIAN); id = tvb_get_guint8(tvb,offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", val_to_str(id, dvbci_comms_rep_id, "Unknown: %d")); offset++; ret_val = tvb_get_guint8(tvb,offset); pi = proto_tree_add_item(tree, hf_dvbci_lsc_ret_val, tvb, offset, 1, ENC_BIG_ENDIAN); switch (id) { case COMMS_REP_ID_SEND_ACK: col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "sent #%d", ret_val); if (pi) proto_item_append_text(pi, " (sent #%d)", ret_val); break; case COMMS_REP_ID_SET_PARAMS_ACK: ret_val_str = val_to_str_const(ret_val, dvbci_lsc_ret_val_params, "unknown/error"); break; case COMMS_REP_ID_STATUS_REPLY: ret_val_str = val_to_str_const(ret_val, dvbci_lsc_ret_val_connect, "unknown/error"); break; default: ret_val_str = val_to_str_const(ret_val, dvbci_lsc_ret_val, "unknown/error"); break; } if (ret_val_str) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", ret_val_str); if (pi) proto_item_append_text(pi, " (%s)", ret_val_str); } break; case T_COMMS_SEND_LAST: case T_COMMS_SEND_MORE: case T_COMMS_RCV_LAST: case T_COMMS_RCV_MORE: phase_id = tvb_get_guint8(tvb, offset); proto_tree_add_uint_format(tree, hf_dvbci_phase_id, tvb, offset, 1, phase_id, "Phase ID %d", phase_id); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "Phase ID %d", phase_id); offset++; if (tvb_reported_length_remaining(tvb, offset) > 0) { proto_tree_add_item(tree, hf_dvbci_lsc_msg, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); } break; default: break; } } static void dissect_dvbci_payload_opp(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit _U_, packet_info *pinfo, proto_tree *tree) { guint16 nit_loop_len; guint8 cap_loop_len; gboolean info_valid; guint8 char_tbl; guint8 sig_strength, sig_qual; proto_item *pi; switch(tag) { case T_OPERATOR_STATUS: case T_OPERATOR_SEARCH_STATUS: dissect_opp_status_body(tvb, offset, pinfo, tree); break; case T_OPERATOR_NIT: nit_loop_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_dvbci_nit_loop_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(tree, hf_dvbci_nit, tvb, offset, nit_loop_len, ENC_NA); break; case T_OPERATOR_INFO: info_valid = ((tvb_get_guint8(tvb, offset) & 0x08) == 0x08); proto_tree_add_item(tree, hf_dvbci_info_valid, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_info_ver_op_info, tvb, offset, 1, ENC_BIG_ENDIAN); if (!info_valid) break; proto_tree_add_item(tree, hf_dvbci_cicam_onid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(tree, hf_dvbci_cicam_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; char_tbl = tvb_get_guint8(tvb, offset); if (char_tbl==CHAR_TBL_MULTI_BYTE) { /* we display this sligthly differently (i.e. clearer) than the CI+ specification ;-) */ proto_tree_add_item(tree, hf_dvbci_opp_char_tbl_multi, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; } else { proto_tree_add_item(tree, hf_dvbci_opp_char_tbl, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (char_tbl==CHAR_TBL_ENC_TYPE_ID) { proto_tree_add_item(tree, hf_dvbci_enc_type_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } } proto_tree_add_item(tree, hf_dvbci_sdt_rst_trusted, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_eit_rst_trusted, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_eit_pf_usage, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_eit_sch_usage, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_ext_evt_usage, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_sdt_oth_trusted, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_dvbci_eit_evt_trigger, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_dvbci_opp_lang_code, tvb, offset, 3, ENC_ASCII|ENC_NA); offset += 3; /* hf_dvbci_prof_name is an FT_UINT_STRING, one leading len byte */ proto_tree_add_item(tree, hf_dvbci_prof_name, tvb, offset, 1, ENC_ASCII|ENC_NA); break; case T_OPERATOR_SEARCH_START: proto_tree_add_item(tree, hf_dvbci_unattended, tvb, offset, 1, ENC_BIG_ENDIAN); /* no filters for the loop lengths, one is 7bit, others are 8bit */ cap_loop_len = tvb_get_guint8(tvb, offset) & 0x7F; proto_tree_add_text(tree, tvb, offset, 1, "Service type loop length: %d", cap_loop_len); offset++; /* no need for error checking, we continue anyway */ dissect_opp_cap_loop(cap_loop_len, "Service type loop", hf_dvbci_opp_srv_type, 1, tvb, offset, pinfo, tree); offset += cap_loop_len; cap_loop_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Delivery system capabilities loop length: %d", cap_loop_len); offset++; dissect_opp_cap_loop(cap_loop_len, "Delivery system capabilities loop", hf_dvbci_dlv_cap_byte, 1, tvb, offset, pinfo, tree); offset += cap_loop_len; cap_loop_len = tvb_get_guint8(tvb, offset); proto_tree_add_text(tree, tvb, offset, 1, "Application capabilities loop length: %d", cap_loop_len); dissect_opp_cap_loop(cap_loop_len, "Application capabilities loop", hf_dvbci_app_cap_bytes, 2, tvb, offset, pinfo, tree); break; case T_OPERATOR_TUNE_STATUS: proto_tree_add_item(tree, hf_dvbci_desc_num, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; sig_strength = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_sig_strength, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; sig_qual = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_sig_qual, tvb, offset, 1, ENC_BIG_ENDIAN); if (sig_strength>100 || sig_qual>100) { pi = proto_tree_add_text(tree, tvb, offset, 1, "Invalid value for signal strength / signal quality"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Values are in percent (0 to 100)"); } offset++; proto_tree_add_item(tree, hf_dvbci_opp_tune_status, tvb, offset, 1, ENC_BIG_ENDIAN); dissect_desc_loop(hf_dvbci_opp_desc_loop_len, tvb, offset, pinfo, tree); break; case T_OPERATOR_TUNE: dissect_desc_loop(hf_dvbci_opp_desc_loop_len, tvb, offset, pinfo, tree); break; default: break; } } static void dissect_dvbci_payload_sas(guint32 tag, gint len_field _U_, tvbuff_t *tvb, gint offset, circuit_t *circuit, packet_info *pinfo, proto_tree *tree) { gchar app_id_str[2+16+1]; /* "0x", string of 16 hex digits, trailing 0 */ guint8 sas_status; dissector_handle_t msg_handle; guint8 msg_nb; guint16 msg_len; tvbuff_t *msg_tvb; switch(tag) { case T_SAS_CONNECT_RQST: case T_SAS_CONNECT_CNF: g_snprintf(app_id_str, sizeof(app_id_str), "0x%016" G_GINT64_MODIFIER "x", tvb_get_ntoh64(tvb, offset)); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", app_id_str); proto_tree_add_item(tree, hf_dvbci_sas_app_id, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; if (tag == T_SAS_CONNECT_CNF) { sas_status = tvb_get_guint8(tvb, offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, (sas_status == SAS_SESS_STATE_CONNECTED ? "Ok" : "Error")); proto_tree_add_item(tree, hf_dvbci_sas_sess_state, tvb, offset, 1, ENC_BIG_ENDIAN); if (!circuit) break; if (sas_status == SAS_SESS_STATE_CONNECTED) { msg_handle = dissector_get_string_handle( sas_msg_dissector_table, app_id_str); /* this clears the dissector for msg_handle==NULL */ circuit_set_dissector(circuit, msg_handle); } else circuit_set_dissector(circuit, NULL); } break; case T_SAS_ASYNC_MSG: msg_nb = tvb_get_guint8(tvb, offset); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "Message #%d ", msg_nb); proto_tree_add_item(tree, hf_dvbci_sas_msg_nb, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; msg_len = tvb_get_ntohs(tvb, offset); proto_tree_add_item(tree, hf_dvbci_sas_msg_len, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; msg_tvb = tvb_new_subset(tvb, offset, msg_len, msg_len); msg_handle = (circuit && circuit->dissector_handle) ? circuit->dissector_handle : find_dissector("data"); if (msg_handle) call_dissector(msg_handle, msg_tvb, pinfo, tree); break; default: break; } } static void dissect_dvbci_apdu(tvbuff_t *tvb, circuit_t *circuit, packet_info *pinfo, proto_tree *tree, guint8 direction) { proto_item *ti; proto_tree *app_tree = NULL; guint32 apdu_len, tag, len_field; const gchar *tag_str; gint offset; proto_item *pi; apdu_info_t *ai; guint32 apdu_res_id; const gchar *ai_res_class_str; apdu_len = tvb_reported_length(tvb); if (tree) { ti = proto_tree_add_text(tree, tvb, 0, apdu_len, "Application Layer"); app_tree = proto_item_add_subtree(ti, ett_dvbci_application); } tag = tvb_get_ntoh24(tvb, 0); tag_str = match_strval(tag, dvbci_apdu_tag); offset = APDU_TAG_SIZE; col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(tag, dvbci_apdu_tag, "Unknown/invalid APDU")); if (tag_str) { proto_tree_add_item( app_tree, hf_dvbci_apdu_tag, tvb, 0, APDU_TAG_SIZE, ENC_BIG_ENDIAN); } else { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid or unsupported APDU tag"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Invalid or unsupported APDU tag"); return; } offset = dissect_ber_length(pinfo, app_tree, tvb, offset, &len_field, NULL); if ((offset+len_field) > apdu_len) { pi = proto_tree_add_text(app_tree, tvb, APDU_TAG_SIZE, offset-APDU_TAG_SIZE, "Length field mismatch"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field mismatch"); return; } ai = (apdu_info_t *)g_hash_table_lookup(apdu_table, GUINT_TO_POINTER((guint)tag)); if (!ai) { pi = proto_tree_add_text( app_tree, tvb, 0, APDU_TAG_SIZE, "Unknown APDU"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Dissection of this APDU is not supported"); return; } if (ai->direction!=DIRECTION_ANY && ai->direction!=direction) { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid APDU direction"); if (ai->direction==DATA_HOST_TO_CAM) { expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "This APDU must be sent from host to CAM"); } else { expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "This APDU must be sent from CAM to host"); } /* don't return, we can continue dissecting the APDU */ } if (ai->min_len_field!=LEN_FIELD_ANY && len_fieldmin_len_field) { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid APDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Minimum length field for %s is %d", tag_str, ai->min_len_field); return; } if (ai->len_field!=LEN_FIELD_ANY && len_field!=ai->len_field) { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid APDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field for %s must be %d", tag_str, ai->len_field); return; } if (circuit) { apdu_res_id = GPOINTER_TO_UINT( (gpointer)circuit_get_proto_data(circuit, proto_dvbci)); ai_res_class_str = val_to_str(ai->res_class, dvbci_res_class, "Unknown"); if(RES_CLASS(apdu_res_id) != ai->res_class) { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid resource class for this apdu"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "%s can only be sent on a %s session", tag_str, ai_res_class_str); } if(RES_VER(apdu_res_id) < ai->res_min_ver) { pi = proto_tree_add_text(app_tree, tvb, 0, APDU_TAG_SIZE, "Invalid resource version for this apdu"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "%s apdu requires at least %s version %d", tag_str, ai_res_class_str, ai->res_min_ver); } /* don't return, we can continue dissecting the APDU */ } if (ai->len_field!=0) { if (!ai->dissect_payload) { /* don't display an error, getting here means we have illegal * data in apdu_info[] */ return; } ai->dissect_payload( tag, len_field, tvb, offset, circuit, pinfo, app_tree); } } static void dissect_dvbci_spdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 direction) { guint32 spdu_len; proto_item *ti = NULL; proto_tree *sess_tree = NULL; guint8 tag; const gchar *tag_str; circuit_t *circuit = NULL; proto_item *pi; gint offset; guint32 len_field; const spdu_info_t *si; proto_item *res_id_it = NULL; guint32 res_id; guint16 ssnb = 0; /* session numbers start with 1, 0 is invalid */ guint8 sess_stat; tvbuff_t *payload_tvb = NULL; gint payload_len; spdu_len = tvb_reported_length(tvb); if (tree) { ti = proto_tree_add_text(tree, tvb, 0, -1, "Session Layer"); sess_tree = proto_item_add_subtree(ti, ett_dvbci_session); } tag = tvb_get_guint8(tvb,0); tag_str = match_strval(tag, dvbci_spdu_tag); col_add_str(pinfo->cinfo, COL_INFO, val_to_str_const(tag, dvbci_spdu_tag, "Invalid SPDU")); if (tag_str) { proto_tree_add_item(sess_tree, hf_dvbci_spdu_tag, tvb, 0, 1, ENC_BIG_ENDIAN); } else { pi = proto_tree_add_text(sess_tree, tvb, 0, 1, "Invalid SPDU tag"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "See table 14 in the DVB-CI specification"); return; } offset = dissect_ber_length(pinfo, sess_tree, tvb, 1, &len_field, NULL); si = (spdu_info_t *)g_hash_table_lookup(spdu_table, GUINT_TO_POINTER((guint)tag)); if (!si) return; if (si->direction!=0 && si->direction!=direction) { pi = proto_tree_add_text(sess_tree, tvb, 0, 1, "Invalid SPDU direction"); if (si->direction==DATA_HOST_TO_CAM) { expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "This SPDU must be sent from host to CAM"); } else { expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "This SPDU must be sent from CAM to host"); } } if (si->len_field != len_field) { /* offset points to 1st byte after the length field */ pi = proto_tree_add_text(sess_tree, tvb, 1, offset-1, "Invalid SPDU length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Correct length field for %s is %d", tag_str, si->len_field); return; } switch(tag) { case T_OPEN_SESSION_REQUEST: res_id_it = dissect_res_id(tvb, offset, pinfo, sess_tree, 0, TRUE); break; case T_CREATE_SESSION: res_id_it = dissect_res_id(tvb, offset, pinfo, sess_tree, 0, TRUE); /* DVB-CI uses network byte order == big endian */ ssnb = tvb_get_ntohs(tvb, offset+RES_ID_LEN); proto_tree_add_item(sess_tree, hf_dvbci_sess_nb, tvb, offset+RES_ID_LEN, 2, ENC_BIG_ENDIAN); break; case T_OPEN_SESSION_RESPONSE: case T_CREATE_SESSION_RESPONSE: sess_stat = tvb_get_guint8(tvb, offset); proto_tree_add_item(sess_tree, hf_dvbci_sess_status, tvb, offset, 1, ENC_BIG_ENDIAN); res_id = tvb_get_ntohl(tvb, offset+1); res_id_it = dissect_res_id(tvb, offset+1, pinfo, sess_tree, 0, TRUE); ssnb = tvb_get_ntohs(tvb, offset+1+RES_ID_LEN); proto_tree_add_item(sess_tree, hf_dvbci_sess_nb, tvb, offset+1+RES_ID_LEN, 2, ENC_BIG_ENDIAN); if (sess_stat != SESS_OPENED) { col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Error"); break; } col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Session opened"); circuit = circuit_new(CT_DVBCI, (guint32)ssnb, pinfo->fd->num); if (circuit) { /* we always add the resource id immediately after the circuit was created */ circuit_add_proto_data( circuit, proto_dvbci, GUINT_TO_POINTER(res_id)); } break; case T_CLOSE_SESSION_REQUEST: ssnb = tvb_get_ntohs(tvb, offset); proto_tree_add_item( sess_tree, hf_dvbci_sess_nb, tvb, offset, 2, ENC_BIG_ENDIAN); break; case T_CLOSE_SESSION_RESPONSE: sess_stat = tvb_get_guint8(tvb, offset); proto_tree_add_item( sess_tree, hf_dvbci_close_sess_status, tvb, offset, 1, ENC_BIG_ENDIAN); col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, sess_stat==SESS_CLOSED ? "Session closed" : "Error"); ssnb = tvb_get_ntohs(tvb, offset+1); proto_tree_add_item(sess_tree, hf_dvbci_sess_nb, tvb, offset+1, 2, ENC_BIG_ENDIAN); circuit = find_circuit(CT_DVBCI, (guint32)ssnb, pinfo->fd->num); if (circuit) close_circuit(circuit, pinfo->fd->num); break; case T_SESSION_NUMBER: ssnb = tvb_get_ntohs(tvb, offset); proto_tree_add_item( sess_tree, hf_dvbci_sess_nb, tvb, offset, 2, ENC_BIG_ENDIAN); payload_len = tvb_reported_length_remaining(tvb, offset+2); payload_tvb = tvb_new_subset(tvb, offset+2, payload_len, payload_len); break; default: break; } if (ssnb && !circuit) circuit = find_circuit(CT_DVBCI, (guint32)ssnb, pinfo->fd->num); /* if the packet contains no resource id, we add the cached id from the circuit so that each packet has a resource id that can be used for filtering */ if (circuit && !res_id_it) { /* when a circuit is found, it always contains a valid resource id */ res_id = GPOINTER_TO_UINT( (gpointer)circuit_get_proto_data(circuit, proto_dvbci)); res_id_it = dissect_res_id(NULL, 0, pinfo, sess_tree, res_id, TRUE); PROTO_ITEM_SET_GENERATED(res_id_it); } if (payload_tvb) { proto_item_set_len(ti, spdu_len-tvb_reported_length(payload_tvb)); dissect_dvbci_apdu(payload_tvb, circuit, pinfo, tree, direction); } else { proto_item_set_len(ti, spdu_len); } } /* dissect the status of an r_tpdu, return its length or -1 for error */ static gint dissect_dvbci_tpdu_status(tvbuff_t *tvb, gint offset, packet_info *pinfo, proto_tree *tree, guint8 lpdu_tcid, guint8 r_tpdu_tag) { gint offset_new, len_start_offset; guint8 tag; guint32 len_field; guint8 t_c_id, sb_value; const gchar *sb_str; proto_item *pi; offset_new = offset; tag = tvb_get_guint8(tvb, offset_new); if (tag!=T_SB) { pi = proto_tree_add_text( tree, tvb, offset_new, 1, "Invalid status tag"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "This must always be T_SB (0x80)"); return -1; } col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "T_SB"); proto_tree_add_text(tree, tvb, offset_new, 1, "Response TPDU status"); offset_new++; len_start_offset = offset_new; offset_new = dissect_ber_length( pinfo, tree, tvb, offset_new, &len_field, NULL); if (len_field != 2) { pi = proto_tree_add_text( tree, tvb, len_start_offset, offset_new-len_start_offset, "Invalid status length field"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "This must always be 2"); return -1; } t_c_id = tvb_get_guint8(tvb, offset_new); proto_tree_add_item(tree, hf_dvbci_t_c_id, tvb, offset_new, 1, ENC_BIG_ENDIAN); /* tcid in transport header and link layer must only match for data * transmission commands */ if (t_c_id!=lpdu_tcid) { if (r_tpdu_tag==NO_TAG || r_tpdu_tag==T_DATA_MORE || r_tpdu_tag==T_DATA_LAST) { pi = proto_tree_add_text(tree, tvb, offset_new, 1, "Transport Connection ID mismatch"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "tcid is %d in the transport layer and %d in the link layer", t_c_id, lpdu_tcid); return -1; } } offset_new++; sb_value = tvb_get_guint8(tvb, offset_new); sb_str = match_strval(sb_value, dvbci_sb_value); if (sb_str) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "%s", sb_str); proto_tree_add_item(tree, hf_dvbci_sb_value, tvb, offset_new, 1, ENC_BIG_ENDIAN); } else { pi = proto_tree_add_text(tree, tvb, offset_new, 1, "Invalid SB_value"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Must be 0x00 or 0x80"); } offset_new++; return offset_new-offset; } /* dissect the header of a c_tpdu or r_tpdu return the length of the header (tag, len_field, t_c_id) or -1 for error */ static gint dissect_dvbci_tpdu_hdr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 direction, guint8 lpdu_tcid, guint32 tpdu_len, guint8 *hdr_tag, guint32 *body_len) { guint8 c_tpdu_tag, r_tpdu_tag, *tag = NULL; const gchar *c_tpdu_str, *r_tpdu_str; proto_item *pi; gint offset; guint32 len_field; guint8 t_c_id; if (direction==DATA_HOST_TO_CAM) { c_tpdu_tag = tvb_get_guint8(tvb, 0); tag = &c_tpdu_tag; c_tpdu_str = match_strval(c_tpdu_tag, dvbci_c_tpdu); if (c_tpdu_str) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", c_tpdu_str); proto_tree_add_item(tree, hf_dvbci_c_tpdu_tag, tvb, 0, 1, ENC_BIG_ENDIAN); } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Invalid Command-TPDU tag"); pi = proto_tree_add_text( tree, tvb, 0, 1, "Invalid Command-TPDU tag"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "see DVB-CI specification, table A.16 for valid values"); return -1; } } else { r_tpdu_tag = tvb_get_guint8(tvb, 0); tag = &r_tpdu_tag; r_tpdu_str = match_strval(r_tpdu_tag, dvbci_r_tpdu); if (r_tpdu_str) { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", r_tpdu_str); proto_tree_add_item(tree, hf_dvbci_r_tpdu_tag, tvb, 0, 1, ENC_BIG_ENDIAN); } else { if (r_tpdu_tag == T_SB) { /* we have an r_tpdu without header and body, it contains only the status part */ if (hdr_tag) *hdr_tag = NO_TAG; if (body_len) *body_len = 0; return 0; } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Invalid Response-TPDU tag"); pi = proto_tree_add_text( tree, tvb, 0, 1, "Invalid Response-TPDU tag"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "see DVB-CI specification, table A.16 for valid values"); return -1; } } } offset = dissect_ber_length(pinfo, tree, tvb, 1, &len_field, NULL); if (((direction==DATA_HOST_TO_CAM) && ((offset+len_field)!=tpdu_len)) || ((direction==DATA_CAM_TO_HOST) && ((offset+len_field)>tpdu_len))) { /* offset points to 1st byte after the length field */ pi = proto_tree_add_text( tree, tvb, 1, offset-1, "Length field mismatch"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "Length field mismatch"); return -1; } t_c_id = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_dvbci_t_c_id, tvb, offset, 1, ENC_BIG_ENDIAN); /* tcid in transport header and link layer must only match for * data transmission commands */ if (t_c_id!=lpdu_tcid) { if (tag && (*tag==T_RCV || *tag==T_DATA_MORE || *tag==T_DATA_LAST)) { pi = proto_tree_add_text(tree, tvb, offset, 1, "Transport Connection ID mismatch"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "tcid is %d in the transport layer and %d in the link layer", t_c_id, lpdu_tcid); } } else { col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "tcid %d", t_c_id); } offset++; if (hdr_tag && tag) *hdr_tag = *tag; if (body_len) *body_len = len_field-1; /* -1 for t_c_id */ return offset; } static void dissect_dvbci_tpdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 direction, guint8 lpdu_tcid) { guint32 tpdu_len, body_len; proto_item *ti = NULL; proto_tree *trans_tree = NULL; gint offset, status_len; guint8 hdr_tag = NO_TAG; tvbuff_t *body_tvb, *payload_tvb = NULL; proto_item *pi; fragment_data *frag_msg = NULL; tpdu_len = tvb_reported_length(tvb); col_clear(pinfo->cinfo, COL_INFO); if (tree) { ti = proto_tree_add_text(tree, tvb, 0, -1, "Transport Layer"); trans_tree = proto_item_add_subtree(ti, ett_dvbci_transport); } offset = dissect_dvbci_tpdu_hdr(tvb, pinfo, trans_tree, direction, lpdu_tcid, tpdu_len, &hdr_tag, &body_len); if (offset==-1) return; proto_item_set_len(ti, offset); if ((offset>0) && (body_len!=0)) { /* for unfragmented data, the reassembly api behaviour is unclear if we put the body part of the tvb into fragment_add_seq_next(), process_reassembled_data() returns the remainder of the tvb which is body|status part if there's more than one fragment, payload_tvb contains only the reassembled bodies as expected to work around this issue, we use a dedicated body_tvb as input to reassembly routines */ body_tvb = tvb_new_subset(tvb, offset, body_len, body_len); frag_msg = fragment_add_seq_next(body_tvb, 0, pinfo, SEQ_ID_TRANSPORT_LAYER, spdu_fragment_table, spdu_reassembled_table, body_len, hdr_tag == T_DATA_MORE ? 1 : 0); payload_tvb = process_reassembled_data(body_tvb, 0, pinfo, "Reassembled SPDU", frag_msg, &spdu_frag_items, NULL, trans_tree); if (!payload_tvb) { if (hdr_tag == T_DATA_MORE) { pinfo->fragmented = TRUE; col_append_fstr(pinfo->cinfo, COL_INFO, " (Message fragment)"); } else { payload_tvb = body_tvb; } } offset += body_len; } if (direction==DATA_CAM_TO_HOST) { /* minimum length of an rtpdu status is 4 bytes */ if (tpdu_len-offset < 4) { pi = proto_tree_add_text(trans_tree, tvb, 0, 0, "Response TPDU's status part is missing"); expert_add_info_format(pinfo, pi, PI_MALFORMED, PI_ERROR, "RTPDU status is mandatory"); return; } status_len = dissect_dvbci_tpdu_status( tvb, offset, pinfo, trans_tree, lpdu_tcid, hdr_tag); if (status_len<0) return; proto_tree_set_appendix(trans_tree, tvb, offset, status_len); } if (payload_tvb) dissect_dvbci_spdu(payload_tvb, pinfo, tree, direction); } static void dissect_dvbci_lpdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 direction) { proto_item *ti; proto_tree *link_tree = NULL; guint32 payload_len; guint8 tcid, more_last; proto_item *pi; tvbuff_t *payload_tvb = NULL; fragment_data *frag_msg = NULL; payload_len = tvb_reported_length(tvb); col_add_str(pinfo->cinfo, COL_INFO, "LPDU"); if (tree) { ti = proto_tree_add_text(tree, tvb, 0, 2, "Link Layer"); link_tree = proto_item_add_subtree(ti, ett_dvbci_link); } tcid = tvb_get_guint8(tvb, 0); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "tcid %d", tcid); proto_tree_add_item(link_tree, hf_dvbci_tcid, tvb, 0, 1, ENC_BIG_ENDIAN); more_last = tvb_get_guint8(tvb, 1); if (match_strval(more_last, dvbci_ml)) { proto_tree_add_item(link_tree, hf_dvbci_ml, tvb, 1, 1, ENC_BIG_ENDIAN); } else { pi = proto_tree_add_text( link_tree, tvb, 1, 1, "Invalid More/Last indicator"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Second byte of an LPDU must be 0x80 or 0x00"); } /* buf_size_host==0 -> we did not capture the buffer size negotiation */ if (buf_size_host!=0 && payload_len>buf_size_host) { pi = proto_tree_add_text( link_tree, tvb, 2, payload_len, "Payload too large"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Maximum payload length is the negotiated buffer size (%d bytes)", buf_size_host); } frag_msg = fragment_add_seq_next(tvb, 2, pinfo, SEQ_ID_LINK_LAYER, tpdu_fragment_table, tpdu_reassembled_table, tvb_reported_length_remaining(tvb, 2), more_last == ML_MORE ? 1 : 0); payload_tvb = process_reassembled_data(tvb, 2, pinfo, "Reassembled TPDU", frag_msg, &tpdu_frag_items, NULL, link_tree); if (!payload_tvb) { if (more_last == ML_MORE) { pinfo->fragmented = TRUE; col_append_fstr(pinfo->cinfo, COL_INFO, " (Message fragment)"); } else payload_tvb = tvb_new_subset_remaining(tvb, 2); } if (payload_tvb) dissect_dvbci_tpdu(payload_tvb, pinfo, tree, direction, tcid); } /* dissect DVB-CI buffer size negotiation */ static void dissect_dvbci_buf_neg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 direction) { guint16 buf_size; proto_item *pi; buf_size = tvb_get_ntohs(tvb, 0); col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %u bytes", direction == DATA_HOST_TO_CAM ? "negotiated buffer size" : "buffer size proposal", buf_size); if (direction == DATA_HOST_TO_CAM) { buf_size_host = buf_size; proto_tree_add_uint_format(tree, hf_dvbci_buf_size, tvb, 0, 2, buf_size, "Negotiated buffer size: %u bytes", buf_size); if (buf_size_host > buf_size_cam) { /* ATTENTION: wireshark may run through each packet multiple times if we didn't check the direction, we'd get the error when wireshark runs through the initial CAM packet for the 2nd time */ pi = proto_tree_add_text(tree, tvb, 0, 2, "Illegal buffer size command"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Host shall not request a buffer size larger than the CAM proposal"); } } else if (direction == DATA_CAM_TO_HOST) { buf_size_cam = buf_size; proto_tree_add_uint_format(tree, hf_dvbci_buf_size, tvb, 0, 2, buf_size, "Buffer size proposal by the CAM: %u bytes", buf_size); } if (buf_size < 16) { pi = proto_tree_add_text(tree, tvb, 0, 2, "Illegal buffer size"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "Minimum buffer size is 16 bytes"); } } static void dissect_dvbci_cis(tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree) { gint offset_start; proto_tree *cis_tree = NULL, *tpl_tree = NULL; proto_item *ti_main = NULL, *ti_tpl; gint tpl_len; /* entire tuple length, including tag and len field */ guint8 tpl_code, len_field; offset_start = offset; if (tree) { ti_main = proto_tree_add_text(tree, tvb, offset, -1, "Card Information Structure (CIS)"); cis_tree = proto_item_add_subtree(ti_main, ett_dvbci_cis); } do { tpl_code = tvb_get_guint8(tvb, offset); if (tpl_code == CISTPL_END) { len_field = 0; tpl_len = 1; } else { len_field = tvb_get_guint8(tvb, offset+1); tpl_len = 2+len_field; /* 1 byte tag, 1 byte len field */ } if (cis_tree) { ti_tpl = proto_tree_add_text(cis_tree, tvb, offset, tpl_len, "CIS tuple"); tpl_tree = proto_item_add_subtree(ti_tpl, ett_dvbci_cis_tpl); proto_tree_add_uint_format(tpl_tree, hf_dvbci_cistpl_code, tvb, offset, 1, tpl_code, "Tuple code: %s (0x%x)", val_to_str(tpl_code, dvbci_cistpl_code, "unknown"), tpl_code); if (tpl_code != CISTPL_END) { proto_tree_add_text(tpl_tree, tvb, offset+1, 1, "Length: %d", len_field); proto_tree_add_text(tpl_tree, tvb, offset+2, len_field, "Tuple content"); } } offset += tpl_len; } while ((tvb_reported_length_remaining(tvb, offset) > 0) && (tpl_code != CISTPL_END)); if (ti_main) proto_item_set_len(ti_main, offset-offset_start); } static int dissect_dvbci(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { gint packet_len, offset = 0, offset_ver, offset_evt, offset_len_field; guint8 version, event; const gchar *event_str; guint16 len_field; proto_item *ti, *ti_hdr; proto_tree *dvbci_tree = NULL, *hdr_tree = NULL; tvbuff_t *payload_tvb; guint16 cor_addr; guint8 cor_value; proto_item *pi; guint8 hw_event; if (tvb_length(tvb) < 4) return 0; offset_ver = offset; version = tvb_get_guint8(tvb, offset++); if (version != 0) return 0; offset_evt = offset; event = tvb_get_guint8(tvb, offset++); event_str = match_strval(event, dvbci_event); if (!event_str) return 0; packet_len = tvb_reported_length(tvb); offset_len_field = offset; len_field = tvb_get_ntohs(tvb, offset); if (len_field != (packet_len-4)) return 0; offset += 2; col_set_str(pinfo->cinfo, COL_PROTOCOL, "DVB-CI"); col_set_str(pinfo->cinfo, COL_INFO, event_str); if (tree) { ti = proto_tree_add_protocol_format(tree, proto_dvbci, tvb, 0, packet_len, "DVB Common Interface: %s", event_str); dvbci_tree = proto_item_add_subtree(ti, ett_dvbci); ti_hdr = proto_tree_add_text(dvbci_tree, tvb, 0, offset, "Pseudo header"); hdr_tree = proto_item_add_subtree(ti_hdr, ett_dvbci_hdr); proto_tree_add_text(hdr_tree, tvb, offset_ver, 1, "Version: %d", version); proto_tree_add_item(hdr_tree, hf_dvbci_event, tvb, offset_evt, 1, ENC_BIG_ENDIAN); proto_tree_add_text(hdr_tree, tvb, offset_len_field, 2, "Length field: %d", len_field); } if (IS_DATA_TRANSFER(event)) { if (event == DATA_HOST_TO_CAM) { SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(ADDR_HOST)+1, ADDR_HOST); SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(ADDR_CAM)+1 , ADDR_CAM); } else { SET_ADDRESS(&pinfo->src, AT_STRINGZ, (int)strlen(ADDR_CAM)+1 , ADDR_CAM); SET_ADDRESS(&pinfo->dst, AT_STRINGZ, (int)strlen(ADDR_HOST)+1, ADDR_HOST); } payload_tvb = tvb_new_subset_remaining( tvb, offset); if (len_field == 2) { dissect_dvbci_buf_neg(payload_tvb, pinfo, dvbci_tree, event); } else { dissect_dvbci_lpdu(payload_tvb, pinfo, dvbci_tree, event); } } else if (event==COR_WRITE) { /* I did not assign hf_... values for cor_addr and cor_value there's no need to filter against them */ cor_addr = tvb_get_ntohs(tvb, offset); if (cor_addr == 0xffff) { proto_tree_add_text(dvbci_tree, tvb, offset, 2, "COR address is unknown"); col_append_sep_str(pinfo->cinfo, COL_INFO, ": ", "unknown address"); } else if (cor_addr > 0xFFE) { pi = proto_tree_add_text(tree, tvb, offset, 2, "Invalid COR address"); expert_add_info_format(pinfo, pi, PI_PROTOCOL, PI_WARN, "COR address must not be greater than 0xFFE (DVB-CI spec, A.5.6)"); } else { proto_tree_add_text(dvbci_tree, tvb, offset, 2, "COR address: 0x%x", cor_addr); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ": ", "address 0x%x", cor_addr); } offset += 2; cor_value = tvb_get_guint8(tvb, offset); proto_tree_add_text(dvbci_tree, tvb, offset, 1, "COR value: 0x%x", cor_value); col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "value 0x%x", cor_value); } else if (event==CIS_READ) { dissect_dvbci_cis(tvb, offset, pinfo, dvbci_tree); } else if (event==HW_EVT) { hw_event = tvb_get_guint8(tvb, offset); col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(hw_event, dvbci_hw_event, "Invalid hardware event")); proto_tree_add_item(dvbci_tree, hf_dvbci_hw_event, tvb, offset, 1, ENC_BIG_ENDIAN); } return packet_len; } void proto_register_dvbci(void) { guint i; module_t *dvbci_module; static gint *ett[] = { &ett_dvbci, &ett_dvbci_hdr, &ett_dvbci_cis, &ett_dvbci_cis_tpl, &ett_dvbci_link, &ett_dvbci_link_frag, &ett_dvbci_link_frags, &ett_dvbci_transport, &ett_dvbci_transport_frag, &ett_dvbci_transport_frags, &ett_dvbci_session, &ett_dvbci_res, &ett_dvbci_application, &ett_dvbci_es, &ett_dvbci_ca_desc, &ett_dvbci_text, &ett_dvbci_cc_item, &ett_dvbci_sac_msg_body, &ett_dvbci_ami_req_types, &ett_dvbci_lsc_conn_desc, &ett_dvbci_opp_cap_loop }; static hf_register_info hf[] = { { &hf_dvbci_event, { "Event", "dvb-ci.event", FT_UINT8, BASE_HEX, VALS(dvbci_event), 0, NULL, HFILL } }, { &hf_dvbci_hw_event, { "Hardware event", "dvb-ci.hw_event", FT_UINT8, BASE_HEX, VALS(dvbci_hw_event), 0, NULL, HFILL } }, { &hf_dvbci_cistpl_code, { "CIS tuple code", "dvb-ci.cistpl_code", FT_UINT8, BASE_HEX, VALS(dvbci_cistpl_code), 0, NULL, HFILL } }, { &hf_dvbci_buf_size, { "Buffer Size", "dvb-ci.buf_size", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_tcid, { "Transport Connection ID", "dvb-ci.tcid", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_ml, { "More/Last indicator", "dvb-ci.more_last", FT_UINT8, BASE_HEX, VALS(dvbci_ml), 0, NULL, HFILL } }, /* on the link layer, tpdus are reassembled */ { &hf_dvbci_l_frags, { "Tpdu fragments", "dvb-ci.tpdu_fragments", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag, { "Tpdu fragment", "dvb-ci.tpdu_fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_overlap, { "Tpdu fragment overlap", "dvb-ci.tpdu_fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_overlap_conflicts, { "Tpdu fragment overlapping with conflicting data", "dvb-ci.tpdu_fragment.overlap.conflicts", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_multiple_tails, { "Tpdu has multiple tail fragments", "dvb-ci.tpdu_fragment.multiple_tails", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_too_long_frag, { "Tpdu fragment too long", "dvb-ci.tpdu_fragment.too_long_fragment", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_err, { "Tpdu defragmentation error", "dvb-ci.tpdu_fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_frag_cnt, { "Tpdu fragment count", "dvb-ci.tpdu_fragment.count", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_reass_in, { "Tpdu reassembled in", "dvb-ci.tpdu_reassembled.in", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_l_reass_len, { "Reassembled tpdu length", "dvb-ci.tpdu_reassembled.length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_c_tpdu_tag, { "Command TPDU Tag", "dvb-ci.c_tpdu_tag", FT_UINT8, BASE_HEX, VALS(dvbci_c_tpdu), 0, NULL, HFILL } }, { &hf_dvbci_r_tpdu_tag, { "Response TPDU Tag", "dvb-ci.r_tpdu_tag", FT_UINT8, BASE_HEX, VALS(dvbci_r_tpdu), 0, NULL, HFILL } }, { &hf_dvbci_t_c_id, { "Transport Connection ID", "dvb-ci.t_c_id", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sb_value, { "SB Value", "dvb-ci.sb_value", FT_UINT8, BASE_HEX, VALS(dvbci_sb_value), 0, NULL, HFILL } }, /* on the transport layer, spdus are reassembled */ { &hf_dvbci_t_frags, { "Spdu fragments", "dvb-ci.spdu_fragments", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag, { "Spdu fragment", "dvb-ci.spdu_fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_overlap, { "Spdu fragment overlap", "dvb-ci.spdu_fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_overlap_conflicts, { "Spdu fragment overlapping with conflicting data", "dvb-ci.tpdu_fragment.overlap.conflicts", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_multiple_tails, { "Spdu has multiple tail fragments", "dvb-ci.spdu_fragment.multiple_tails", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_too_long_frag, { "Spdu fragment too long", "dvb-ci.spdu_fragment.too_long_fragment", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_err, { "Spdu defragmentation error", "dvb-ci.spdu_fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_frag_cnt, { "Spdu fragment count", "dvb-ci.spdu_fragment.count", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_reass_in, { "Spdu reassembled in", "dvb-ci.spdu_reassembled.in", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_t_reass_len, { "Reassembled spdu length", "dvb-ci.spdu_reassembled.length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } }, { &hf_dvbci_spdu_tag, { "SPDU Tag", "dvb-ci.spdu_tag", FT_UINT8, BASE_HEX, VALS(dvbci_spdu_tag), 0, NULL, HFILL } }, { &hf_dvbci_sess_status, { "Session Status", "dvb-ci.session_status", FT_UINT8, BASE_HEX, VALS(dvbci_sess_status), 0, NULL, HFILL } }, { &hf_dvbci_sess_nb, { "Session Number", "dvb-ci.session_nb", FT_UINT16, BASE_DEC, NULL , 0, NULL, HFILL } }, { &hf_dvbci_close_sess_status, { "Session Status", "dvb-ci.close_session_status", FT_UINT8, BASE_HEX, VALS(dvbci_close_sess_status), 0, NULL, HFILL } }, { &hf_dvbci_res_id_type, { "Resource ID Type", "dvb-ci.res.id_type", FT_UINT32, BASE_HEX, NULL, RES_ID_TYPE_MASK, NULL, HFILL } }, { &hf_dvbci_res_class, { "Resource Class", "dvb-ci.res.class", FT_UINT32, BASE_HEX, NULL, RES_CLASS_MASK, NULL, HFILL } }, { &hf_dvbci_res_type, { "Resource Type", "dvb-ci.res.type", FT_UINT32, BASE_HEX, NULL, RES_TYPE_MASK, NULL, HFILL } }, { &hf_dvbci_res_ver, { "Resource Version", "dvb-ci.res.version", FT_UINT32, BASE_HEX, NULL, RES_VER_MASK, NULL, HFILL } }, { &hf_dvbci_apdu_tag, { "APDU Tag", "dvb-ci.apdu_tag", FT_UINT24, BASE_HEX, VALS(dvbci_apdu_tag), 0, NULL, HFILL } }, { &hf_dvbci_app_type, { "Application type", "dvb-ci.ap.type", FT_UINT8, BASE_HEX, VALS(dvbci_app_type), 0, NULL, HFILL } }, { &hf_dvbci_app_manf, { "Application manufacturer", "dvb-ci.ap.manufacturer", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_manf_code, { "Manufacturer code", "dvb-ci.ap.manufacturer_code", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_menu_str_len, { "Menu string length", "dvb-ci.ap.menu_string_length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_data_rate, { "Transport stream data rate supported by the host", "dvb-ci.ap.data_rate", FT_UINT8, BASE_HEX, VALS(dvbci_data_rate), 0, NULL, HFILL } }, { &hf_dvbci_ca_sys_id, { "CA system ID", "dvb-ci.ca.ca_system_id", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_ca_pmt_list_mgmt, { "CA PMT list management", "dvb-ci.ca.ca_pmt_list_management", FT_UINT8, BASE_HEX, VALS(dvbci_ca_pmt_list_mgmt), 0, NULL, HFILL } }, { &hf_dvbci_prog_num, { "Program number", "dvb-ci.ca.program_number", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_prog_info_len, { "Program info length", "dvb-ci.ca.program_info_length", FT_UINT16, BASE_HEX, NULL, 0x0FFF, NULL, HFILL } }, { &hf_dvbci_stream_type, { "Stream type", "dvb-ci.ca.stream_type", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_es_pid, { "Elementary stream PID", "dvb-ci.ca.elementary_pid", FT_UINT16, BASE_HEX, NULL, 0x1FFF, NULL, HFILL } }, { &hf_dvbci_es_info_len, { "Elementary stream info length", "dvb-ci.ca.es_info_length", FT_UINT16, BASE_HEX, NULL, 0x0FFF, NULL, HFILL } }, { &hf_dvbci_ca_pmt_cmd_id, { "CA PMT command ID", "dvb-ci.ca.ca_pmt_cmd_id", FT_UINT8, BASE_HEX, VALS(dvbci_ca_pmt_cmd_id), 0, NULL, HFILL } }, { &hf_dvbci_descr_len, { "CA descriptor length", "dvb-ci.ca.ca_desc_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_ca_pid, { "CA PID", "dvb-ci.ca.ca_pid", FT_UINT16, BASE_HEX, NULL, 0x1FFF, NULL, HFILL } }, { &hf_dvbci_ca_enable_flag, { "CA enable flag", "dvb-ci.ca.ca_enable_flag", FT_UINT8, BASE_HEX, NULL, 0x80, NULL, HFILL } }, { &hf_dvbci_ca_enable, { "CA enable", "dvb-ci.ca.ca_enable", FT_UINT8, BASE_HEX, VALS(dvbci_ca_enable), 0x7F, NULL, HFILL } }, { &hf_dvbci_auth_proto_id, { "Authentication protocol ID", "dvb-ci.aut.proto_id", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_auth_req_bytes, { "Authentication request data", "dvb-ci.aut.req", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_auth_resp_bytes, { "Authentication response data", "dvb-ci.aut.resp", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_network_id, { "Network ID", "dvb-ci.hc.nid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_original_network_id, { "Original network ID", "dvb-ci.hc.onid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_transport_stream_id, { "Transport stream ID", "dvb-ci.hc.tsid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_service_id, { "Service ID", "dvb-ci.hc.svcid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_replacement_ref, { "Replacement reference", "dvb-ci.hc.replacement_ref", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_replaced_pid, { "Replaced PID", "dvb-ci.hc.replaced_pid", FT_UINT16, BASE_HEX, NULL, 0x1FFF, NULL, HFILL } }, { &hf_dvbci_replacement_pid, { "Replacement PID", "dvb-ci.hc.replacement_pid", FT_UINT16, BASE_HEX, NULL, 0x1FFF, NULL, HFILL } }, { &hf_dvbci_pmt_flag, { "PMT flag", "dvb-ci.hc.pmt_flag", FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL } }, { &hf_dvbci_hc_desc_loop_len, { "Descriptor loop length", "dvb-ci.hc.desc_loop_len", FT_UINT16, BASE_DEC, NULL, 0x0FFF, NULL, HFILL } }, { &hf_dvbci_hc_status, { "Status field", "dvb-ci.hc.status_field", FT_UINT8, BASE_HEX, VALS(dvbci_hc_status), 0, NULL, HFILL } }, { &hf_dvbci_resp_intv, { "Response interval", "dvb-ci.dt.resp_interval", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_utc_time, { "UTC time", "dvb-ci.dt.utc_time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL } }, /* we have to use FT_INT16 instead of FT_RELATIVE_TIME, local offset can be negative */ { &hf_dvbci_local_offset, { "Local time offset", "dvb-ci.dt.local_offset", FT_INT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_close_mmi_cmd_id, { "Command ID", "dvb-ci.mmi.close_mmi_cmd_id", FT_UINT8, BASE_HEX, VALS(dvbci_close_mmi_cmd_id), 0, NULL, HFILL } }, { &hf_dvbci_close_mmi_delay, { "Delay (in sec)", "dvb-ci.mmi.delay", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_disp_ctl_cmd, { "Command", "dvb-ci.mmi.disp_ctl_cmd", FT_UINT8, BASE_HEX, VALS(dvbci_disp_ctl_cmd), 0, NULL, HFILL } }, { &hf_dvbci_mmi_mode, { "MMI mode", "dvb-ci.mmi.mode", FT_UINT8, BASE_HEX, VALS(dvbci_mmi_mode), 0, NULL, HFILL } }, { &hf_dvbci_disp_rep_id, { "Reply ID", "dvb-ci.mmi.disp_rep_id", FT_UINT8, BASE_HEX, VALS(dvbci_disp_rep_id), 0, NULL, HFILL } }, { &hf_dvbci_char_tbl, { "Character table", "dvb-ci.mmi.char_tbl", FT_UINT8, BASE_HEX, VALS(dvbci_char_tbl), 0, NULL, HFILL } }, { &hf_dvbci_blind_ans, { "Blind answer flag", "dvb-ci.mmi.blind_ans", FT_UINT8, BASE_HEX, VALS(dvbci_blind_ans), 0x01, NULL, HFILL } }, { &hf_dvbci_ans_txt_len, { "Answer text length", "dvb-ci.mmi.ans_txt_len", FT_UINT8, BASE_DEC, NULL , 0, NULL, HFILL } }, { &hf_dvbci_text_ctrl, { "Text control code", "dvb-ci.mmi.text_ctrl", FT_UINT8, BASE_HEX, VALS(dvbci_text_ctrl), 0, NULL, HFILL } }, { &hf_dvbci_ans_id, { "Answer ID", "dvb-ci.mmi.ans_id", FT_UINT8, BASE_HEX, VALS(dvbci_ans_id) , 0, NULL, HFILL } }, { &hf_dvbci_choice_nb, { "Number of menu items", "dvb-ci.mmi.choice_nb", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_choice_ref, { "Selected item", "dvb-ci.mmi.choice_ref", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_item_nb, { "Number of list items", "dvb-ci.mmi.item_nb", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_host_country, { "Host country", "dvb-ci.hlc.country", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_host_language, { "Host language", "dvb-ci.hlc.language", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cup_type, { "CAM upgrade type", "dvb-ci.cup.type", FT_UINT8, BASE_HEX, VALS(dvbci_cup_type), 0, NULL, HFILL } }, { &hf_dvbci_cup_download_time, { "Download time", "dvb-ci.cup.download_time", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cup_answer, { "CAM upgrade answer", "dvb-ci.cup.answer", FT_UINT8, BASE_HEX, VALS(dvbci_cup_answer), 0, NULL, HFILL } }, { &hf_dvbci_cup_progress, { "CAM upgrade progress", "dvb-ci.cup.progress", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cup_reset, { "requested CAM reset", "dvb-ci.cup.reset", FT_UINT8, BASE_HEX, VALS(dvbci_cup_reset), 0, NULL, HFILL } }, { &hf_dvbci_cc_sys_id_bitmask, { "CC system id bitmask", "dvb-ci.cc.sys_id_bitmask", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cc_dat_id, { "CC datatype id", "dvb-ci.cc.datatype_id", FT_UINT8, BASE_HEX, VALS(dvbci_cc_dat_id), 0, NULL, HFILL } }, { &hf_dvbci_brand_cert, { "Brand certificate", "dvb-ci.cc.brand_cert", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_dvbci_dev_cert, { "Device certificate", "dvb-ci.cc.dev_cert", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_dvbci_uri_ver, { "URI version", "dvb-ci.cc.uri.version", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_uri_aps, { "APS", "dvb-ci.cc.uri.aps", FT_UINT8, BASE_HEX, NULL, 0xC0, NULL, HFILL } }, { &hf_dvbci_uri_emi, { "EMI", "dvb-ci.cc.uri.emi", FT_UINT8, BASE_HEX, NULL, 0x30, NULL, HFILL } }, { &hf_dvbci_uri_ict, { "Image constraint token", "dvb-ci.cc.uri.ict", FT_UINT8, BASE_HEX, NULL, 0x08, NULL, HFILL } }, { &hf_dvbci_uri_rct, { "Redistribution control trigger (RCT)", "dvb-ci.cc.uri.ict", FT_UINT8, BASE_HEX, NULL, 0x04, NULL, HFILL } }, { &hf_dvbci_cc_key_register, { "Key register", "dvb-ci.cc.key_register", FT_UINT8, BASE_HEX, VALS(dvbci_cc_key_register), 0, NULL, HFILL } }, { &hf_dvbci_cc_status_field, { "Status field", "dvb-ci.cc.status_field", FT_UINT8, BASE_HEX, VALS(dvbci_cc_status), 0, NULL, HFILL } }, { &hf_dvbci_cc_op_mode, { "Operating mode", "dvb-ci.cc.op_mode", FT_UINT8, BASE_HEX, VALS(dvbci_cc_op_mode), 0, NULL, HFILL } }, { &hf_dvbci_cc_data, { "Data", "dvb-ci.cc.data", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sac_msg_ctr, { "Message counter", "dvb-ci.cc.sac.msg_ctr", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sac_proto_ver, { "Protocol version", "dvb-ci.cc.sac.proto_ver", FT_UINT8, BASE_HEX, NULL, 0xF0, NULL, HFILL } }, { &hf_dvbci_sac_auth_cip, { "Authentication cipher", "dvb-ci.cc.sac.auth_cip", FT_UINT8, BASE_HEX, VALS(dvbci_cc_sac_auth), 0x0E, NULL, HFILL } }, { &hf_dvbci_sac_payload_enc, { "Payload encryption flag", "dvb-ci.cc.sac.payload_enc", FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL } }, { &hf_dvbci_sac_enc_cip, { "Encryption cipher", "dvb-ci.cc.sac.enc_cip", FT_UINT8, BASE_HEX, VALS(dvbci_cc_sac_enc), 0xE0, NULL, HFILL } }, { &hf_dvbci_sac_payload_len, { "Payload length", "dvb-ci.cc.sac.payload_len", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sac_enc_body, { "Encrypted SAC body", "dvb-ci.cc.sac.enc_body", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sac_signature, { "Signature", "dvb-ci.cc.sac.signature", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_rating, { "Rating", "dvb-ci.cc.rating", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_capability_field, { "Capability field", "dvb-ci.cc.capability_field", FT_UINT8, BASE_HEX, VALS(dvbci_cc_cap), 0, NULL, HFILL } }, { &hf_dvbci_pin_chg_time, { "PIN change time (UTC)", "dvb-ci.cc.pin_change_time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_pincode_status, { "Pincode status field", "dvb-ci.cc.pincode_status_field", FT_UINT8, BASE_HEX, VALS(dvbci_pincode_status), 0, NULL, HFILL } }, { &hf_dvbci_cc_prog_num, { "Program number", "dvb-ci.cc.program_number", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_pin_evt_time, { "PIN event time (UTC)", "dvb-ci.cc.pin_event_time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_pin_evt_cent, { "PIN event time centiseconds", "dvb-ci.cc.pin_event_time_centi", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cc_priv_data, { "Private data", "dvb-ci.cc.private_data", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_pincode, { "PIN code", "dvb-ci.cc.pincode", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_app_dom_id, { "Application Domain Identifier", "dvb-ci.ami.app_dom_id", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_init_obj, { "Initial Object", "dvb-ci.ami.init_obj", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_ack_code, { "Acknowledgement", "dvb-ci.ami.ack_code", FT_UINT8, BASE_HEX, VALS(dvbci_ack_code), 0, NULL, HFILL } }, { &hf_dvbci_req_type, { "Request type", "dvb-ci.ami.req_type", FT_UINT8, BASE_HEX, VALS(dvbci_req_type), 0, NULL, HFILL } }, { &hf_dvbci_file_hash, { "File hash", "dvb-ci.ami.file_hash", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_file_name, { "File name", "dvb-ci.ami.file_name", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_ami_priv_data, { "Private data", "dvb-ci.ami.private_data", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_req_ok, { "RequestOK", "dvb-ci.ami.request_ok", FT_UINT8, BASE_HEX, NULL, 0x02, NULL, HFILL } }, { &hf_dvbci_file_ok, { "FileOK", "dvb-ci.ami.file_ok", FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL } }, { &hf_dvbci_file_data, { "File data", "dvb-ci.ami.file_data", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_abort_req_code, { "Abort request code", "dvb-ci.ami.abort_req_code", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_abort_ack_code, { "Abort acknowledgement code", "dvb-ci.ami.abort_ack_code", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_phase_id, { "Phase ID", "dvb-ci.lsc.comms_phase_id", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_comms_rep_id, { "Comms reply ID", "dvb-ci.lsc.comms_reply_id", FT_UINT8, BASE_HEX, VALS(dvbci_comms_rep_id), 0, NULL, HFILL } }, { &hf_dvbci_lsc_buf_size, { "Buffer size", "dvb-ci.lsc.buf_size", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_ret_val, { "Return value", "dvb-ci.lsc.return_value", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_comms_cmd_id, { "Comms command ID", "dvb-ci.lsc.comms_cmd_id", FT_UINT8, BASE_HEX, VALS(dvbci_comms_cmd_id), 0, NULL, HFILL } }, { &hf_dvbci_conn_desc_type, { "Type", "dvb-ci.lsc.conn_desc_type", FT_UINT8, BASE_HEX, VALS(dvbci_conn_desc_type), 0, NULL, HFILL } }, { &hf_dvbci_lsc_media_tag, { "Tag", "dvb-ci.lsc.media_tag", FT_UINT8, BASE_HEX, VALS(dvbci_lsc_desc_tag), 0, NULL, HFILL } }, { &hf_dvbci_lsc_media_len, { "Length", "dvb-ci.lsc.media_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_ip_ver, { "IP version", "dvb-ci.lsc.ip_version", FT_UINT8, BASE_DEC, VALS(dvbci_lsc_ip_ver), 0, NULL, HFILL } }, { &hf_dvbci_lsc_ipv4_addr, { "IP address", "dvb-ci.lsc.ipv4_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_ipv6_addr, { "IPv6 address", "dvb-ci.lsc.ipv6_addr", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_dst_port, { "Destination port", "dvb-ci.lsc.dst_port", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_proto, { "Protocol", "dvb-ci.lsc.protocol", FT_UINT8, BASE_HEX, VALS(dvbci_lsc_proto), 0, NULL, HFILL } }, { &hf_dvbci_lsc_hostname, { "Hostname", "dvb-ci.lsc.hostname", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_retry_count, { "Retry count", "dvb-ci.lsc.retry_count", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_timeout, { "Timeout", "dvb-ci.lsc.timeout", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_lsc_msg, { "Message", "dvb-ci.lsc.message", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, /* filter string for hf_dvbci_info_ver_op_status and * hf_dvbci_info_ver_op_info below is the same, it seems this is ok */ { &hf_dvbci_info_ver_op_status, { "Info version", "dvb-ci.opp.info_ver", FT_UINT8, BASE_HEX, NULL, 0xE0, NULL, HFILL } }, { &hf_dvbci_nit_ver, { "NIT version", "dvb-ci.opp.nit_ver", FT_UINT8, BASE_HEX, NULL, 0x1F, NULL, HFILL } }, { &hf_dvbci_pro_typ, { "Profile type", "dvb-ci.opp.profile_type", FT_UINT8, BASE_HEX, NULL, 0xC0, NULL, HFILL } }, { &hf_dvbci_init_flag, { "Initialized flag", "dvb-ci.opp.init_flag", FT_UINT8, BASE_HEX, NULL, 0x20, NULL, HFILL } }, { &hf_dvbci_ent_chg_flag, { "Entitlement change flag", "dvb-ci.opp.ent_chg_flag", FT_UINT8, BASE_HEX, NULL, 0x10, NULL, HFILL } }, { &hf_dvbci_ent_val_flag, { "Entitlement valid flag", "dvb-ci.opp.ent_val_flag", FT_UINT8, BASE_HEX, NULL, 0x08, NULL, HFILL } }, { &hf_dvbci_ref_req_flag, { "Refresh request flag", "dvb-ci.opp.refresh_req_flag", FT_UINT8, BASE_HEX, NULL, 0x03, NULL, HFILL } }, { &hf_dvbci_err_flag, { "Error flag", "dvb-ci.opp.err_flag", FT_UINT8, BASE_HEX, NULL, 0xF0, NULL, HFILL } }, { &hf_dvbci_dlv_sys_hint, { "Delivery system hint", "dvb-ci.opp.dlv_sys_hint", FT_UINT8, BASE_HEX, NULL, 0x0F, NULL, HFILL } }, { &hf_dvbci_refr_req_date, { "Refresh request date", "dvb-ci.opp.refresh_req_date", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_refr_req_time, { "Refresh request time", "dvb-ci.opp.refresh_req_time", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_nit_loop_len, { "NIT loop length", "dvb-ci.opp.nit_loop_len", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_nit, { "NIT", "dvb-ci.opp.nit", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_info_valid, { "Info valid", "dvb-ci.opp.info_valid", FT_UINT8, BASE_HEX, NULL, 0x08, NULL, HFILL } }, { &hf_dvbci_info_ver_op_info, { "Info version", "dvb-ci.opp.info_ver", FT_UINT8, BASE_HEX, NULL, 0x07, NULL, HFILL } }, { &hf_dvbci_cicam_onid, { "CICAM original network id", "dvb-ci.opp.cicam_onid", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_cicam_id, { "CICAM ID", "dvb-ci.opp.cicam_id", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_opp_char_tbl_multi, { "Multi-byte character table", "dvb-ci.opp.char_tbl_multi", FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_opp_char_tbl, { "Character code table", "dvb-ci.opp.char_tbl", FT_UINT8, BASE_HEX, VALS(dvbci_char_tbl), 0, NULL, HFILL } }, { &hf_dvbci_enc_type_id, { "Encoding type ID", "dvb-ci.opp.enc_type_id", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sdt_rst_trusted, { "SDT running status trusted", "dvb-ci.opp.sdt_rst_trusted", FT_UINT8, BASE_HEX, NULL, 0x80, NULL, HFILL } }, { &hf_dvbci_eit_rst_trusted, { "EIT running status trusted", "dvb-ci.opp.eit_rst_trusted", FT_UINT8, BASE_HEX, NULL, 0x40, NULL, HFILL } }, { &hf_dvbci_eit_pf_usage, { "EIT present/following usage", "dvb-ci.opp.eit_pf_usage", FT_UINT8, BASE_HEX, NULL, 0x30, NULL, HFILL } }, { &hf_dvbci_eit_sch_usage, { "EIT schedule usage", "dvb-ci.opp.eit_sch_usage", FT_UINT8, BASE_HEX, NULL, 0x0E, NULL, HFILL } }, { &hf_dvbci_ext_evt_usage, { "Extended event usage", "dvb-ci.opp.ext_evt_usage", FT_UINT8, BASE_HEX, NULL, 0x01, NULL, HFILL } }, { &hf_dvbci_sdt_oth_trusted, { "SDT_other trusted", "dvb-ci.opp.sdt_oth_trusted", FT_UINT8, BASE_HEX, NULL, 0x80, NULL, HFILL } }, { &hf_dvbci_eit_evt_trigger, { "EIT event trigger", "dvb-ci.opp.eit_evt_trigger", FT_UINT8, BASE_HEX, NULL, 0x40, NULL, HFILL } }, { &hf_dvbci_opp_lang_code, { "Language code", "dvb-ci.opp.lang_code", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_prof_name, { "Profile name", "dvb-ci.opp.profile_name", FT_UINT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_dvbci_unattended, { "Unattended flag", "dvb-ci.opp.unattended_flag", FT_UINT8, BASE_HEX, NULL, 0x80, NULL, HFILL } }, { &hf_dvbci_opp_srv_type, { "Service type", "dvb-ci.opp.service_type", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_dlv_cap_byte, { "Delivery capability byte", "dvb-ci.opp.dlv_cap_byte", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, /* the CI+ spec is not particularly clear about this but an * application id in the capability loop must always be 2 bytes */ { &hf_dvbci_app_cap_bytes, { "Application capability bytes", "dvb-ci.opp.app_cap_bytes", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_desc_num, { "Next unprocessed descriptor number", "dvb-ci.opp.desc_num", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sig_strength, { "Signal strength", "dvb-ci.opp.sig_strength", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sig_qual, { "Signal quality", "dvb-ci.opp.sig_qual", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_opp_tune_status, { "Tuning status", "dvb-ci.opp.tune_status", FT_UINT8, BASE_HEX, NULL, 0xF0, NULL, HFILL } }, { &hf_dvbci_opp_desc_loop_len, { "Descriptor loop length", "dvb-ci.opp.desc_loop_len", FT_UINT16, BASE_DEC, NULL, 0x0FFF, NULL, HFILL } }, { &hf_dvbci_sas_app_id, { "Application ID", "dvb-ci.sas.app_id", FT_UINT64, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sas_sess_state, { "Connection state", "dvb-ci.sas.sess_state", FT_UINT8, BASE_DEC, VALS(dvbci_sas_sess_state), 0, NULL, HFILL } }, { &hf_dvbci_sas_msg_nb, { "Message number", "dvb-ci.sas.msg_nb", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_dvbci_sas_msg_len, { "Message length", "dvb-ci.sas.msg_len", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } } }; spdu_table = g_hash_table_new(g_direct_hash, g_direct_equal); for(i=0; i