1957 lines
70 KiB
C
1957 lines
70 KiB
C
/* packet-iso14443.c
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* Routines for ISO14443 dissection
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* Copyright 2015-2016, Martin Kaiser <martin@kaiser.cx>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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/* ISO14443 is a set of standards describing the communication between a
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* card reader and a contactless smartcard.
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*
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* This dissector handles the initialization messages defined in
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* ISO14443-3 and the activation and protocol messages from ISO14443-4
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*
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* The standards are available as "final committee drafts" from
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* http://wg8.de/wg8n1496_17n3613_Ballot_FCD14443-3.pdf
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* http://wg8.de/wg8n1344_17n3269_Ballot_FCD14443-4.pdf
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*
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* The pcap input format for this dissector is documented at
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* http://www.kaiser.cx/pcap-iso14443.html.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include <epan/decode_as.h>
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#include <epan/conversation.h>
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#include <epan/tfs.h>
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#include <epan/reassemble.h>
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#include <epan/crc16-tvb.h>
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#include <wiretap/wtap.h>
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#include <wsutil/pow2.h>
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/* Proximity Integrated Circuit Card, i.e. the smartcard */
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#define ADDR_PICC "PICC"
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/* Proximity Coupling Device, i.e. the card reader */
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#define ADDR_PCD "PCD"
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/* event byte in the PCAP ISO14443 pseudo-header */
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#define ISO14443_EVT_DATA_PICC_TO_PCD 0xFF
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#define ISO14443_EVT_DATA_PCD_TO_PICC 0xFE
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#define ISO14443_EVT_FIELD_OFF 0xFD
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#define ISO14443_EVT_FIELD_ON 0xFC
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#define ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED 0xFB
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#define ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED 0xFA
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static const value_string iso14443_event[] = {
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{ ISO14443_EVT_DATA_PICC_TO_PCD, "Data transfer PICC -> PCD" },
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{ ISO14443_EVT_DATA_PCD_TO_PICC, "Data transfer PCD -> PICC" },
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{ ISO14443_EVT_FIELD_ON, "Field on" },
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{ ISO14443_EVT_FIELD_OFF, "Field off" },
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{ ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED,
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"Data transfer PICC -> PCD (CRC bytes were dropped)" },
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{ ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED,
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"Data transfer PCD -> PICC (CRC bytes were dropped)" },
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{ 0, NULL }
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};
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#define IS_DATA_TRANSFER(e) \
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((e)==ISO14443_EVT_DATA_PICC_TO_PCD || \
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(e)==ISO14443_EVT_DATA_PCD_TO_PICC || \
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(e)==ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED || \
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(e)==ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED)
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typedef enum _iso14443_cmd_t {
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CMD_TYPE_WUPA, /* REQA, WUPA or ATQA */
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CMD_TYPE_WUPB, /* REQB, WUPB or ATQB */
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CMD_TYPE_HLTA,
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CMD_TYPE_UID, /* anticollision or selection commands
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and their answers */
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CMD_TYPE_ATS, /* RATS or ATS */
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CMD_TYPE_ATTRIB, /* Attrib or the answer to Attrib */
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CMD_TYPE_BLOCK, /* I-, R- or S-blocks */
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CMD_TYPE_UNKNOWN
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} iso14443_cmd_t;
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static wmem_tree_t *transactions = NULL;
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typedef struct _iso14443_transaction_t {
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guint32 rqst_frame;
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guint32 resp_frame;
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iso14443_cmd_t cmd;
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} iso14443_transaction_t;
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typedef enum _iso14443_type_t {
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ISO14443_A,
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ISO14443_B,
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ISO14443_UNKNOWN
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} iso14443_type_t;
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static const value_string iso14443_short_frame[] = {
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{ 0x26 , "REQA" },
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{ 0x52 , "WUPA" },
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{ 0, NULL }
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};
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/* the bit rate definitions in the attrib message */
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#define BITRATE_106 0x00
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#define BITRATE_212 0x01
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#define BITRATE_424 0x02
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#define BITRATE_847 0x03
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static const value_string iso14443_bitrates[] = {
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{ BITRATE_106, "106 kbit/s" },
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{ BITRATE_212, "212 kbit/s" },
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{ BITRATE_424, "424 kbit/s" },
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{ BITRATE_847, "827 kbit/s" },
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{ 0, NULL }
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};
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/* convert a length code into the length it encodes
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code_to_len[x] is the length encoded by x
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this conversion is used for type A's FSCI and FSDI and for type B's
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maximum frame size */
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static const guint16 code_to_len[] = {
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16, 24, 32, 40, 48, 64, 96, 128, 256, 512, 1024, 2048, 4096
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};
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#define LEN_CODE_MAX array_length(code_to_len)
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/* the bits in the ATS' TO byte indicating which other bytes are transmitted */
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#define HAVE_TC1 0x40
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#define HAVE_TB1 0x20
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#define HAVE_TA1 0x10
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#define I_BLOCK_TYPE 0x00
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#define R_BLOCK_TYPE 0x02
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#define S_BLOCK_TYPE 0x03
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static const value_string iso14443_block_type[] = {
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{ I_BLOCK_TYPE , "I-block" },
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{ R_BLOCK_TYPE , "R-block" },
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{ S_BLOCK_TYPE , "S-block" },
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{ 0, NULL }
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};
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#define S_CMD_DESELECT 0x00
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#define S_CMD_WTX 0x03
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#define S_CMD_NONE 0xFF
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static const value_string iso14443_s_block_cmd[] = {
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{ S_CMD_DESELECT , "Deselect" },
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{ S_CMD_WTX , "WTX" },
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{ 0, NULL }
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};
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static const true_false_string tfs_wupb_reqb = { "WUPB", "REQB" };
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static const true_false_string tfs_compliant_not_compliant = { "Compliant", "Not compliant" };
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static const true_false_string tfs_incomplete_complete = { "Incomplete", "Complete" };
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static const true_false_string tfs_iso_propr = { "As defined in ISO14443-3", "Proprietary" };
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static const true_false_string tfs_not_required_required = { "Not required", "Required" };
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static const true_false_string tfs_nak_ack = { "NAK", "ACK" };
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#define CT_BYTE 0x88
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#define CRC_LEN 2
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/* we'll only ever have a single circuit,
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only one card can be active at a time */
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#define ISO14443_CIRCUIT_ID 0
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void proto_register_iso14443(void);
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void proto_reg_handoff_iso14443(void);
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static int proto_iso14443 = -1;
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static dissector_handle_t iso14443_handle;
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static dissector_table_t iso14443_cmd_type_table;
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static dissector_table_t iso14443_subdissector_table;
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static int ett_iso14443 = -1;
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static int ett_iso14443_hdr = -1;
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static int ett_iso14443_msg = -1;
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static int ett_iso14443_app_data = -1;
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static int ett_iso14443_prot_inf = -1;
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static int ett_iso14443_bit_rate = -1;
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static int ett_iso14443_prot_type = -1;
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static int ett_iso14443_ats_t0 = -1;
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static int ett_iso14443_ats_ta1 = -1;
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static int ett_iso14443_ats_tb1 = -1;
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static int ett_iso14443_ats_tc1 = -1;
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static int ett_iso14443_attr_p1 = -1;
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static int ett_iso14443_attr_p2 = -1;
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static int ett_iso14443_attr_p3 = -1;
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static int ett_iso14443_attr_p4 = -1;
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static int ett_iso14443_pcb = -1;
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static int ett_iso14443_inf = -1;
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static int ett_iso14443_frag = -1;
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static int ett_iso14443_frags = -1;
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static int hf_iso14443_hdr_ver = -1;
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static int hf_iso14443_event = -1;
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static int hf_iso14443_len_field = -1;
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static int hf_iso14443_resp_to = -1;
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static int hf_iso14443_resp_in = -1;
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static int hf_iso14443_short_frame = -1;
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static int hf_iso14443_atqa_rfu1 = -1;
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static int hf_iso14443_atqa_rfu2 = -1;
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static int hf_iso14443_propr_coding = -1;
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static int hf_iso14443_uid_bits = -1;
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static int hf_iso14443_uid_size = -1;
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static int hf_iso14443_max_frame_size = -1;
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static int hf_iso14443_bit_frame_anticoll = -1;
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static int hf_iso14443_apf = -1;
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static int hf_iso14443_afi = -1;
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static int hf_iso14443_ext_atqb = -1;
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/* if this is present but unset, we have a REQB */
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static int hf_iso14443_wupb = -1;
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static int hf_iso14443_n = -1;
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static int hf_iso14443_atqb_start = -1;
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static int hf_iso14443_app_data = -1;
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static int hf_iso14443_num_afi_apps = -1;
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static int hf_iso14443_total_num_apps = -1;
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static int hf_iso14443_prot_inf = -1;
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static int hf_iso14443_bit_rate_cap = -1;
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static int hf_iso14443_same_bit_rate = -1;
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static int hf_iso14443_picc_pcd_847 = -1;
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static int hf_iso14443_picc_pcd_424 = -1;
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static int hf_iso14443_picc_pcd_212 = -1;
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static int hf_iso14443_pcd_picc_847 = -1;
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static int hf_iso14443_pcd_picc_424 = -1;
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static int hf_iso14443_pcd_picc_212 = -1;
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static int hf_iso14443_max_frame_size_code = -1;
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static int hf_iso14443_prot_type = -1;
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static int hf_iso14443_min_tr2 = -1;
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static int hf_iso14443_4_compl_atqb = -1;
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static int hf_iso14443_fwi = -1;
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static int hf_iso14443_sfgi = -1;
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static int hf_iso14443_adc = -1;
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static int hf_iso14443_nad_supported = -1;
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static int hf_iso14443_cid_supported = -1;
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static int hf_iso14443_hlta = -1;
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static int hf_iso14443_sel = -1;
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static int hf_iso14443_nvb = -1;
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static int hf_iso14443_4_compl_sak = -1;
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static int hf_iso14443_uid_complete = -1;
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static int hf_iso14443_ct = -1;
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static int hf_iso14443_uid_cln = -1;
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static int hf_iso14443_bcc = -1;
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static int hf_iso14443_rats_start = -1;
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static int hf_iso14443_fsdi = -1;
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static int hf_iso14443_fsd = -1;
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static int hf_iso14443_cid = -1;
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static int hf_iso14443_tl = -1;
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static int hf_iso14443_t0 = -1;
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static int hf_iso14443_tc1_transmitted = -1;
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static int hf_iso14443_tb1_transmitted = -1;
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static int hf_iso14443_ta1_transmitted = -1;
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static int hf_iso14443_fsci = -1;
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static int hf_iso14443_fsc = -1;
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static int hf_iso14443_tc1 = -1;
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static int hf_iso14443_tb1 = -1;
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static int hf_iso14443_ta1 = -1;
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static int hf_iso14443_same_d = -1;
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static int hf_iso14443_ds8 = -1;
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static int hf_iso14443_ds4 = -1;
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static int hf_iso14443_ds2 = -1;
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static int hf_iso14443_dr8 = -1;
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static int hf_iso14443_dr4 = -1;
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static int hf_iso14443_dr2 = -1;
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static int hf_iso14443_hist_bytes = -1;
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static int hf_iso14443_attrib_start = -1;
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static int hf_iso14443_pupi = -1;
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static int hf_iso14443_param1 = -1;
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static int hf_iso14443_min_tr0 = -1;
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static int hf_iso14443_min_tr1 = -1;
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static int hf_iso14443_eof = -1;
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static int hf_iso14443_sof = -1;
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static int hf_iso14443_param2 = -1;
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static int hf_iso14443_bitrate_picc_pcd = -1;
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static int hf_iso14443_bitrate_pcd_picc = -1;
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static int hf_iso14443_param3 = -1;
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static int hf_iso14443_param4 = -1;
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static int hf_iso14443_mbli = -1;
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static int hf_iso14443_pcb = -1;
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static int hf_iso14443_block_type = -1;
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static int hf_iso14443_i_blk_chaining = -1;
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static int hf_iso14443_cid_following = -1;
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static int hf_iso14443_nad_following = -1;
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static int hf_iso14443_nak = -1;
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static int hf_iso14443_blk_num = -1;
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static int hf_iso14443_s_blk_cmd = -1;
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static int hf_iso14443_pwr_lvl_ind = -1;
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static int hf_iso14443_wtxm = -1;
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static int hf_iso14443_inf = -1;
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static int hf_iso14443_frags = -1;
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static int hf_iso14443_frag = -1;
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static int hf_iso14443_frag_overlap = -1;
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static int hf_iso14443_frag_overlap_conflicts = -1;
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static int hf_iso14443_frag_multiple_tails = -1;
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static int hf_iso14443_frag_too_long_frag = -1;
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static int hf_iso14443_frag_err = -1;
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static int hf_iso14443_frag_cnt = -1;
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static int hf_iso14443_reass_in = -1;
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static int hf_iso14443_reass_len = -1;
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static int hf_iso14443_crc = -1;
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static int hf_iso14443_crc_status = -1;
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static int * const bit_rate_fields[] = {
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&hf_iso14443_same_bit_rate,
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&hf_iso14443_picc_pcd_847,
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&hf_iso14443_picc_pcd_424,
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&hf_iso14443_picc_pcd_212,
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&hf_iso14443_pcd_picc_847,
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&hf_iso14443_pcd_picc_424,
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&hf_iso14443_pcd_picc_212,
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NULL
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};
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static int * const ats_ta1_fields[] = {
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&hf_iso14443_same_d,
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&hf_iso14443_ds8,
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&hf_iso14443_ds4,
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&hf_iso14443_ds2,
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&hf_iso14443_dr8,
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&hf_iso14443_dr4,
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&hf_iso14443_dr2,
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NULL
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};
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static expert_field ei_iso14443_unknown_cmd = EI_INIT;
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static expert_field ei_iso14443_wrong_crc = EI_INIT;
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static expert_field ei_iso14443_uid_inval_size = EI_INIT;
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static reassembly_table i_block_reassembly_table;
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static const fragment_items i_block_frag_items = {
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&ett_iso14443_frag,
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&ett_iso14443_frags,
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&hf_iso14443_frags,
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&hf_iso14443_frag,
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&hf_iso14443_frag_overlap,
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&hf_iso14443_frag_overlap_conflicts,
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&hf_iso14443_frag_multiple_tails,
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&hf_iso14443_frag_too_long_frag,
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&hf_iso14443_frag_err,
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&hf_iso14443_frag_cnt,
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&hf_iso14443_reass_in,
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&hf_iso14443_reass_len,
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NULL,
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"I-block fragments"
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};
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static int
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dissect_iso14443_cmd_type_wupa(tvbuff_t *tvb, packet_info *pinfo,
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proto_tree *tree, void *data _U_)
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{
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proto_item *ti = proto_tree_get_parent(tree);
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gint offset = 0;
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guint8 uid_bits, uid_size = 0;
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if (pinfo->p2p_dir == P2P_DIR_SENT) {
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const gchar *sf_str;
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sf_str = try_val_to_str(
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tvb_get_guint8(tvb, 0), iso14443_short_frame);
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proto_tree_add_item(tree, hf_iso14443_short_frame,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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if (sf_str) {
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proto_item_append_text(ti, ": %s", sf_str);
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col_set_str(pinfo->cinfo, COL_INFO, sf_str);
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}
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}
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else if (pinfo->p2p_dir == P2P_DIR_RECV) {
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guint16 atqa;
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proto_item *pi_uid;
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atqa = tvb_get_letohs(tvb, offset);
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col_set_str(pinfo->cinfo, COL_INFO, "ATQA");
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proto_item_append_text(ti, ": ATQA 0x%04x", atqa);
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proto_tree_add_item(tree, hf_iso14443_atqa_rfu1,
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tvb, offset, 2, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(tree, hf_iso14443_propr_coding,
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tvb, offset, 2, ENC_LITTLE_ENDIAN);
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uid_bits = (atqa & 0xC0) >> 6;
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if (uid_bits == 0x00)
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uid_size = 4;
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else if (uid_bits == 0x01)
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uid_size = 7;
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else if (uid_bits == 0x02)
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uid_size = 10;
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pi_uid = proto_tree_add_item(tree, hf_iso14443_uid_bits,
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tvb, offset, 2, ENC_LITTLE_ENDIAN);
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if (uid_size != 0) {
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proto_item *pi_uid_size;
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pi_uid_size = proto_tree_add_uint(tree, hf_iso14443_uid_size,
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tvb, offset+1, 1, uid_size);
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proto_item_set_generated(pi_uid_size);
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}
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else {
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expert_add_info(pinfo, pi_uid, &ei_iso14443_uid_inval_size);
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}
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proto_tree_add_item(tree, hf_iso14443_atqa_rfu2,
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tvb, offset, 2, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(tree, hf_iso14443_bit_frame_anticoll,
|
|
tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
offset += 2;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int dissect_iso14443_atqb(tvbuff_t *tvb, gint offset,
|
|
packet_info *pinfo, proto_tree *tree, gboolean crc_dropped)
|
|
{
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
proto_item *app_data_it, *prot_inf_it, *prot_type_it;
|
|
proto_tree *app_data_tree, *prot_inf_tree, *prot_type_tree;
|
|
gint app_data_offset, rem_len;
|
|
gboolean nad_supported, cid_supported;
|
|
guint8 max_frame_size_code, fwi;
|
|
proto_item *pi;
|
|
gboolean iso14443_adc;
|
|
guint8 prot_inf_len = 0;
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO, "ATQB");
|
|
proto_item_append_text(ti, ": ATQB");
|
|
proto_tree_add_item(tree, hf_iso14443_atqb_start,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
proto_tree_add_item(tree, hf_iso14443_pupi,
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
app_data_offset = offset;
|
|
app_data_it = proto_tree_add_item(tree, hf_iso14443_app_data,
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
/* we should not link the protocol info length to the "extended
|
|
ATQB supported" field in the WUPB - even if the PCD supports
|
|
extended ATQB, the PICC may still send a basic one */
|
|
rem_len = tvb_reported_length_remaining(tvb, offset);
|
|
if (!crc_dropped) {
|
|
if (rem_len == 5 || rem_len == 6)
|
|
prot_inf_len = rem_len - 2;
|
|
}
|
|
else if (rem_len == 3 || rem_len == 4)
|
|
prot_inf_len = rem_len;
|
|
/* XXX - exception if (prot_inf_len==0) */
|
|
|
|
prot_inf_it = proto_tree_add_item(tree, hf_iso14443_prot_inf,
|
|
tvb, offset, prot_inf_len, ENC_BIG_ENDIAN);
|
|
prot_inf_tree = proto_item_add_subtree(
|
|
prot_inf_it, ett_iso14443_prot_inf);
|
|
/* bit rate info are applicable only if b4 is 0 */
|
|
if (!(tvb_get_guint8(tvb, offset) & 0x08)) {
|
|
proto_tree_add_bitmask_with_flags(prot_inf_tree, tvb, offset,
|
|
hf_iso14443_bit_rate_cap, ett_iso14443_bit_rate,
|
|
bit_rate_fields, ENC_BIG_ENDIAN, BMT_NO_APPEND);
|
|
}
|
|
offset++;
|
|
max_frame_size_code = (tvb_get_guint8(tvb, offset) & 0xF0) >> 4;
|
|
proto_tree_add_uint_bits_format_value(prot_inf_tree,
|
|
hf_iso14443_max_frame_size_code,
|
|
tvb, offset*8, 4, max_frame_size_code, ENC_BIG_ENDIAN, "%d",
|
|
max_frame_size_code);
|
|
if (max_frame_size_code < LEN_CODE_MAX) {
|
|
pi = proto_tree_add_uint(prot_inf_tree, hf_iso14443_max_frame_size,
|
|
tvb, offset, 1, code_to_len[max_frame_size_code]);
|
|
proto_item_set_generated(pi);
|
|
}
|
|
prot_type_it = proto_tree_add_item(prot_inf_tree, hf_iso14443_prot_type,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
prot_type_tree = proto_item_add_subtree(
|
|
prot_type_it, ett_iso14443_prot_type);
|
|
proto_tree_add_item(prot_type_tree, hf_iso14443_min_tr2,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(prot_type_tree, hf_iso14443_4_compl_atqb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
fwi = (tvb_get_guint8(tvb, offset) & 0xF0) >> 4;
|
|
proto_tree_add_uint_bits_format_value(prot_inf_tree, hf_iso14443_fwi,
|
|
tvb, offset*8, 4, fwi, ENC_BIG_ENDIAN, "%d", fwi);
|
|
iso14443_adc = tvb_get_guint8(tvb, offset) & 0x04;
|
|
proto_tree_add_item(prot_inf_tree, hf_iso14443_adc,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
if (iso14443_adc) {
|
|
app_data_tree = proto_item_add_subtree(
|
|
app_data_it, ett_iso14443_app_data);
|
|
proto_tree_add_item(app_data_tree, hf_iso14443_afi,
|
|
tvb, app_data_offset, 1, ENC_BIG_ENDIAN);
|
|
app_data_offset++;
|
|
/* XXX - CRC_B app */
|
|
app_data_offset += 2;
|
|
proto_tree_add_item(app_data_tree, hf_iso14443_num_afi_apps,
|
|
tvb, app_data_offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(app_data_tree, hf_iso14443_total_num_apps,
|
|
tvb, app_data_offset, 1, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
nad_supported = tvb_get_guint8(tvb, offset) & 0x02;
|
|
proto_tree_add_boolean_bits_format_value(prot_inf_tree,
|
|
hf_iso14443_nad_supported, tvb, 8*offset+6, 1, nad_supported,
|
|
ENC_BIG_ENDIAN, "%s", tfs_get_string(nad_supported, &tfs_supported_not_supported));
|
|
cid_supported = tvb_get_guint8(tvb, offset) & 0x01;
|
|
proto_tree_add_boolean_bits_format_value(prot_inf_tree,
|
|
hf_iso14443_cid_supported, tvb, 8*offset+7, 1, cid_supported,
|
|
ENC_BIG_ENDIAN, "%s", tfs_get_string(cid_supported, &tfs_supported_not_supported));
|
|
offset++;
|
|
|
|
/* XXX - extended ATQB */
|
|
if (prot_inf_len>3)
|
|
offset++;
|
|
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_ccitt_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_wupb(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
gint offset = 0;
|
|
guint8 param;
|
|
const char *msg_type;
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
|
proto_tree_add_item(tree, hf_iso14443_apf,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
proto_tree_add_item(tree, hf_iso14443_afi,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
param = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(tree, hf_iso14443_ext_atqb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(tree, hf_iso14443_wupb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
msg_type = tfs_get_string(param & 0x08, &tfs_wupb_reqb);
|
|
col_set_str(pinfo->cinfo, COL_INFO, msg_type);
|
|
proto_item_append_text(ti, ": %s", msg_type);
|
|
proto_tree_add_uint_bits_format_value(tree, hf_iso14443_n,
|
|
tvb, offset*8+5, 3, pow2(guint32, param&0x07),
|
|
ENC_BIG_ENDIAN, "%u", pow2(guint32, param&0x07));
|
|
offset++;
|
|
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_ccitt_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
}
|
|
else if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
offset = dissect_iso14443_atqb(tvb, offset, pinfo, tree, crc_dropped);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_hlta(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gint offset = 0;
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO, "HLTA");
|
|
proto_item_append_text(ti, ": HLTA");
|
|
proto_tree_add_item(tree, hf_iso14443_hlta,
|
|
tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_iso14443a_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int dissect_iso14443_uid_part(
|
|
tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree)
|
|
{
|
|
guint8 uid_len = 4;
|
|
|
|
if (tvb_get_guint8(tvb, offset) == CT_BYTE) {
|
|
proto_tree_add_item(tree, hf_iso14443_ct, tvb, offset, 1, ENC_NA);
|
|
offset++;
|
|
uid_len = 3;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_iso14443_uid_cln, tvb, offset, uid_len, ENC_NA);
|
|
offset += uid_len;
|
|
proto_tree_add_item(tree, hf_iso14443_bcc, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_uid(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gint offset = 0;
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
|
proto_tree_add_item(tree, hf_iso14443_sel,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
proto_tree_add_item(tree, hf_iso14443_nvb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
if (tvb_reported_length_remaining(tvb, offset) == 0) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Anticollision");
|
|
proto_item_append_text(ti, ": Anticollision");
|
|
}
|
|
else {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Select");
|
|
proto_item_append_text(ti, ": Select");
|
|
offset = dissect_iso14443_uid_part(tvb, offset, pinfo, tree);
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_iso14443a_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
}
|
|
}
|
|
else if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
if (tvb_reported_length_remaining(tvb, offset) <= 3) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "SAK");
|
|
proto_item_append_text(ti, ": SAK");
|
|
proto_tree_add_item(tree, hf_iso14443_4_compl_sak,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(tree, hf_iso14443_uid_complete,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_iso14443a_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
}
|
|
else if (tvb_reported_length_remaining(tvb, offset) == 5) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "UID");
|
|
offset = dissect_iso14443_uid_part(tvb, offset, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int dissect_iso14443_ats(tvbuff_t *tvb, gint offset,
|
|
packet_info *pinfo, proto_tree *tree, gboolean crc_dropped)
|
|
{
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
conversation_t *conv;
|
|
guint8 tl, t0 = 0, fsci, fwi, sfgi;
|
|
proto_item *t0_it, *tb1_it, *tc1_it, *pi;
|
|
proto_tree *t0_tree, *tb1_tree, *tc1_tree;
|
|
gint offset_tl, hist_len;
|
|
gboolean nad_supported, cid_supported;
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO, "ATS");
|
|
proto_item_append_text(ti, ": ATS");
|
|
|
|
conv = conversation_new_by_id(pinfo->num, CONVERSATION_ISO14443, ISO14443_CIRCUIT_ID);
|
|
conversation_add_proto_data(conv, proto_iso14443, GUINT_TO_POINTER((guint)ISO14443_A));
|
|
|
|
offset_tl = offset;
|
|
tl = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(tree, hf_iso14443_tl,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
/* the length in TL includes the TL byte itself */
|
|
if (tl >= 2) {
|
|
t0 = tvb_get_guint8(tvb, offset);
|
|
t0_it = proto_tree_add_item(tree, hf_iso14443_t0,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
t0_tree = proto_item_add_subtree(t0_it, ett_iso14443_ats_t0);
|
|
proto_tree_add_item(t0_tree, hf_iso14443_tc1_transmitted,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(t0_tree, hf_iso14443_tb1_transmitted,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(t0_tree, hf_iso14443_ta1_transmitted,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
fsci = t0 & 0x0F;
|
|
proto_tree_add_item(t0_tree, hf_iso14443_fsci,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
if (fsci < LEN_CODE_MAX) {
|
|
pi = proto_tree_add_uint(t0_tree, hf_iso14443_fsc,
|
|
tvb, offset, 1, code_to_len[fsci]);
|
|
proto_item_set_generated(pi);
|
|
}
|
|
offset++;
|
|
}
|
|
if (t0 & HAVE_TA1) {
|
|
proto_tree_add_bitmask_with_flags(tree, tvb, offset,
|
|
hf_iso14443_ta1, ett_iso14443_ats_ta1,
|
|
ats_ta1_fields, ENC_BIG_ENDIAN, BMT_NO_APPEND);
|
|
offset++;
|
|
}
|
|
if (t0 & HAVE_TB1) {
|
|
tb1_it = proto_tree_add_item(tree, hf_iso14443_tb1,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
tb1_tree = proto_item_add_subtree(tb1_it, ett_iso14443_ats_tb1);
|
|
fwi = (tvb_get_guint8(tvb, offset) & 0xF0) >> 4;
|
|
proto_tree_add_uint_bits_format_value(tb1_tree, hf_iso14443_fwi,
|
|
tvb, offset*8, 4, fwi, ENC_BIG_ENDIAN, "%d", fwi);
|
|
sfgi = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
proto_tree_add_uint_bits_format_value(tb1_tree, hf_iso14443_sfgi,
|
|
tvb, offset*8+4, 4, sfgi, ENC_BIG_ENDIAN, "%d", sfgi);
|
|
offset++;
|
|
}
|
|
if (t0 & HAVE_TC1) {
|
|
tc1_it = proto_tree_add_item(tree, hf_iso14443_tc1,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
tc1_tree = proto_item_add_subtree(tc1_it, ett_iso14443_ats_tc1);
|
|
|
|
cid_supported = tvb_get_guint8(tvb, offset) & 0x02;
|
|
proto_tree_add_boolean_bits_format_value(tc1_tree,
|
|
hf_iso14443_cid_supported, tvb, 8*offset+6, 1, cid_supported,
|
|
ENC_BIG_ENDIAN, "%s", tfs_get_string(cid_supported, &tfs_supported_not_supported));
|
|
nad_supported = tvb_get_guint8(tvb, offset) & 0x01;
|
|
proto_tree_add_boolean_bits_format_value(tc1_tree,
|
|
hf_iso14443_nad_supported, tvb, 8*offset+7, 1, nad_supported,
|
|
ENC_BIG_ENDIAN, "%s", tfs_get_string(nad_supported, &tfs_supported_not_supported));
|
|
offset++;
|
|
}
|
|
hist_len = tl - (offset - offset_tl);
|
|
if (hist_len > 0) {
|
|
proto_tree_add_item(tree, hf_iso14443_hist_bytes,
|
|
tvb, offset, hist_len, ENC_NA);
|
|
offset += hist_len;
|
|
}
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_iso14443a_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_ats(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gint offset = 0;
|
|
guint8 fsdi, cid;
|
|
proto_item *pi;
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "RATS");
|
|
proto_item_append_text(ti, ": RATS");
|
|
|
|
proto_tree_add_item(tree, hf_iso14443_rats_start,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
fsdi = tvb_get_guint8(tvb, offset) >> 4;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_iso14443_fsdi,
|
|
tvb, offset*8, 4, fsdi, ENC_BIG_ENDIAN, "%d", fsdi);
|
|
if (fsdi < LEN_CODE_MAX) {
|
|
pi = proto_tree_add_uint(tree, hf_iso14443_fsd,
|
|
tvb, offset, 1, code_to_len[fsdi]);
|
|
proto_item_set_generated(pi);
|
|
}
|
|
cid = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_iso14443_cid,
|
|
tvb, offset*8+4, 4, cid, ENC_BIG_ENDIAN, "%d", cid);
|
|
offset++;
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_iso14443a_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
}
|
|
else if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
offset = dissect_iso14443_ats(tvb, offset, pinfo, tree, crc_dropped);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int dissect_iso14443_attrib(tvbuff_t *tvb, gint offset,
|
|
packet_info *pinfo, proto_tree *tree, gboolean crc_dropped)
|
|
{
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
proto_item *p1_it, *p2_it, *p3_it, *p4_it, *pi;
|
|
proto_tree *p1_tree, *p2_tree, *p3_tree, *p4_tree;
|
|
guint8 max_frame_size_code, cid;
|
|
gint hl_inf_len;
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Attrib");
|
|
proto_item_append_text(ti, ": Attrib");
|
|
|
|
proto_tree_add_item(tree, hf_iso14443_attrib_start,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
proto_tree_add_item(tree, hf_iso14443_pupi,
|
|
tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
p1_it = proto_tree_add_item(tree, hf_iso14443_param1,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
p1_tree = proto_item_add_subtree( p1_it, ett_iso14443_attr_p1);
|
|
proto_tree_add_item(p1_tree, hf_iso14443_min_tr0,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(p1_tree, hf_iso14443_min_tr1,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(p1_tree, hf_iso14443_eof,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(p1_tree, hf_iso14443_sof,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
p2_it = proto_tree_add_item(tree, hf_iso14443_param2,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
p2_tree = proto_item_add_subtree( p2_it, ett_iso14443_attr_p2);
|
|
proto_tree_add_item(p2_tree, hf_iso14443_bitrate_picc_pcd,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(p2_tree, hf_iso14443_bitrate_pcd_picc,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
max_frame_size_code = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
proto_tree_add_uint_bits_format_value(p2_tree,
|
|
hf_iso14443_max_frame_size_code,
|
|
tvb, offset*8+4, 4, max_frame_size_code, ENC_BIG_ENDIAN, "%d",
|
|
max_frame_size_code);
|
|
if (max_frame_size_code < LEN_CODE_MAX) {
|
|
pi = proto_tree_add_uint(p2_tree, hf_iso14443_max_frame_size,
|
|
tvb, offset, 1, code_to_len[max_frame_size_code]);
|
|
proto_item_set_generated(pi);
|
|
}
|
|
offset++;
|
|
|
|
p3_it = proto_tree_add_item(tree, hf_iso14443_param3,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
p3_tree = proto_item_add_subtree(p3_it, ett_iso14443_attr_p3);
|
|
proto_tree_add_item(p3_tree, hf_iso14443_min_tr2,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(p3_tree, hf_iso14443_4_compl_atqb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset++;
|
|
|
|
p4_it = proto_tree_add_item(tree, hf_iso14443_param4,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
p4_tree = proto_item_add_subtree(p4_it, ett_iso14443_attr_p4);
|
|
cid = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
proto_tree_add_uint_bits_format_value(p4_tree, hf_iso14443_cid,
|
|
tvb, offset*8+4, 4, cid, ENC_BIG_ENDIAN, "%d", cid);
|
|
offset++;
|
|
|
|
hl_inf_len = crc_dropped ?
|
|
tvb_reported_length_remaining(tvb, offset) :
|
|
tvb_reported_length_remaining(tvb, offset) - CRC_LEN;
|
|
if (hl_inf_len > 0) {
|
|
offset += hl_inf_len;
|
|
}
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_ccitt_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_attrib(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gint offset = 0;
|
|
guint8 mbli, cid;
|
|
gint hl_resp_len;
|
|
conversation_t *conv;
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
|
offset = dissect_iso14443_attrib(
|
|
tvb, offset, pinfo, tree, crc_dropped);
|
|
}
|
|
else if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Response to Attrib");
|
|
proto_item_append_text(ti, ": Response to Attrib");
|
|
|
|
conv = conversation_new_by_id(pinfo->num, CONVERSATION_ISO14443, ISO14443_CIRCUIT_ID);
|
|
conversation_add_proto_data(conv, proto_iso14443, GUINT_TO_POINTER((guint)ISO14443_B));
|
|
|
|
mbli = tvb_get_guint8(tvb, offset) >> 4;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_iso14443_mbli,
|
|
tvb, offset*8, 4, mbli, ENC_BIG_ENDIAN, "%d", mbli);
|
|
cid = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
proto_tree_add_uint_bits_format_value(tree, hf_iso14443_cid,
|
|
tvb, offset*8+4, 4, cid, ENC_BIG_ENDIAN, "%d", cid);
|
|
offset++;
|
|
|
|
hl_resp_len = crc_dropped ?
|
|
tvb_reported_length_remaining(tvb, offset) :
|
|
tvb_reported_length_remaining(tvb, offset) - CRC_LEN;
|
|
if (hl_resp_len > 0) {
|
|
offset += hl_resp_len;
|
|
}
|
|
|
|
if (!crc_dropped) {
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status, &ei_iso14443_wrong_crc, pinfo,
|
|
crc16_ccitt_tvb_offset(tvb, 0, offset),
|
|
ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
|
|
offset += CRC_LEN;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_iso14443_cmd_type_block(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, void *data)
|
|
{
|
|
gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
|
|
proto_item *ti = proto_tree_get_parent(tree);
|
|
gint offset = 0;
|
|
guint8 pcb, block_type;
|
|
const gchar *bt_str;
|
|
proto_item *pcb_ti, *inf_ti;
|
|
proto_tree *pcb_tree, *inf_tree;
|
|
gboolean has_cid, has_nad = FALSE;
|
|
guint8 s_cmd = S_CMD_NONE;
|
|
guint8 inf_len;
|
|
|
|
pcb = tvb_get_guint8(tvb, offset);
|
|
block_type = (pcb & 0xC0) >> 6;
|
|
bt_str = try_val_to_str(block_type, iso14443_block_type);
|
|
if (bt_str) {
|
|
proto_item_append_text(ti, ": %s", bt_str);
|
|
col_set_str(pinfo->cinfo, COL_INFO, bt_str);
|
|
}
|
|
has_cid = ((pcb & 0x08) != 0);
|
|
|
|
pcb_ti = proto_tree_add_item(tree, hf_iso14443_pcb,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
pcb_tree = proto_item_add_subtree(pcb_ti, ett_iso14443_pcb);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_block_type,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
switch (block_type) {
|
|
case I_BLOCK_TYPE:
|
|
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL,
|
|
(pcb & 0x10) ? "Chaining" : "No chaining");
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_i_blk_chaining,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
has_nad = ((pcb & 0x40) != 0);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_nad_following,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL,
|
|
"Block number %d", pcb & 0x01);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_blk_num,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
case R_BLOCK_TYPE:
|
|
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL,
|
|
tfs_get_string(pcb & 0x10, &tfs_nak_ack));
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_nak,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL,
|
|
"Block number %d", pcb & 0x01);
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_blk_num,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
case S_BLOCK_TYPE:
|
|
s_cmd = (pcb & 0x30) >> 4;
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_s_blk_cmd,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL,
|
|
val_to_str(s_cmd, iso14443_s_block_cmd,
|
|
"Unknown (0x%02x)"));
|
|
proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
|
|
default:
|
|
/* Report an error? b8 = 0, b7 = 1 */
|
|
break;
|
|
}
|
|
offset++;
|
|
|
|
if (has_cid)
|
|
offset++;
|
|
if (has_nad)
|
|
offset++;
|
|
|
|
switch (block_type) {
|
|
case I_BLOCK_TYPE:
|
|
inf_len = crc_dropped ?
|
|
tvb_reported_length_remaining(tvb, offset) :
|
|
tvb_reported_length_remaining(tvb, offset) - 2;
|
|
break;
|
|
|
|
/* R-blocks have no payload */
|
|
|
|
case S_BLOCK_TYPE:
|
|
inf_len = 1;
|
|
break;
|
|
|
|
default:
|
|
inf_len = 0;
|
|
break;
|
|
|
|
}
|
|
|
|
if (inf_len > 0) {
|
|
inf_ti = proto_tree_add_item(tree, hf_iso14443_inf,
|
|
tvb, offset, inf_len, ENC_NA);
|
|
if (block_type == S_BLOCK_TYPE) {
|
|
if (s_cmd == S_CMD_WTX) {
|
|
inf_tree = proto_item_add_subtree(inf_ti, ett_iso14443_inf);
|
|
if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
proto_tree_add_item(inf_tree, hf_iso14443_pwr_lvl_ind,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
}
|
|
proto_tree_add_item(inf_tree, hf_iso14443_wtxm,
|
|
tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
}
|
|
}
|
|
|
|
if (block_type == I_BLOCK_TYPE) {
|
|
fragment_head *frag_msg;
|
|
tvbuff_t *inf_tvb, *payload_tvb;
|
|
|
|
/* see the comment in dissect_dvbci_tpdu (packet-dvbci.c) */
|
|
inf_tvb = tvb_new_subset_length(tvb, offset, inf_len);
|
|
frag_msg = fragment_add_seq_next(&i_block_reassembly_table,
|
|
inf_tvb, 0, pinfo, 0, NULL, inf_len,
|
|
(pcb & 0x10) ? 1 : 0);
|
|
|
|
payload_tvb = process_reassembled_data(inf_tvb, 0, pinfo,
|
|
"Reassembled APDU", frag_msg,
|
|
&i_block_frag_items, NULL, tree);
|
|
|
|
if (payload_tvb) {
|
|
if (!dissector_try_payload_new(iso14443_subdissector_table,
|
|
payload_tvb, pinfo, tree, TRUE, NULL)) {
|
|
call_data_dissector(payload_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
}
|
|
|
|
offset += inf_len;
|
|
}
|
|
|
|
if (!crc_dropped) {
|
|
iso14443_type_t t = ISO14443_UNKNOWN;
|
|
conversation_t *conv;
|
|
guint32 computed_checksum = 0;
|
|
guint flags = PROTO_CHECKSUM_NO_FLAGS;
|
|
|
|
conv = find_conversation_by_id(pinfo->num, CONVERSATION_ISO14443, ISO14443_CIRCUIT_ID);
|
|
if (conv)
|
|
t = (iso14443_type_t)GPOINTER_TO_UINT(conversation_get_proto_data(conv, proto_iso14443));
|
|
|
|
if (t == ISO14443_A) {
|
|
computed_checksum = crc16_iso14443a_tvb_offset(tvb, 0, offset);
|
|
flags |= PROTO_CHECKSUM_VERIFY;
|
|
}
|
|
else if (t == ISO14443_B) {
|
|
computed_checksum = crc16_ccitt_tvb_offset(tvb, 0, offset);
|
|
flags |= PROTO_CHECKSUM_VERIFY;
|
|
}
|
|
|
|
proto_tree_add_checksum(tree, tvb, offset,
|
|
hf_iso14443_crc, hf_iso14443_crc_status,
|
|
&ei_iso14443_wrong_crc, pinfo, computed_checksum,
|
|
ENC_LITTLE_ENDIAN, flags);
|
|
offset += CRC_LEN;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static gint
|
|
iso14443_set_addrs(guint8 event, packet_info *pinfo)
|
|
{
|
|
if (!IS_DATA_TRANSFER(event))
|
|
return -1;
|
|
|
|
/* pinfo->p2p_dir is from the perspective of the card reader,
|
|
like in iso7816
|
|
i.e sent is from reader to card, received is from card to reader */
|
|
if (event == ISO14443_EVT_DATA_PCD_TO_PICC ||
|
|
event == ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED) {
|
|
|
|
set_address(&pinfo->src, AT_STRINGZ,
|
|
(int)strlen(ADDR_PCD)+1, ADDR_PCD);
|
|
set_address(&pinfo->dst, AT_STRINGZ,
|
|
(int)strlen(ADDR_PICC)+1 , ADDR_PICC);
|
|
|
|
pinfo->p2p_dir = P2P_DIR_SENT;
|
|
}
|
|
else {
|
|
set_address(&pinfo->src, AT_STRINGZ,
|
|
(int)strlen(ADDR_PICC)+1 , ADDR_PICC);
|
|
set_address(&pinfo->dst, AT_STRINGZ,
|
|
(int)strlen(ADDR_PCD)+1, ADDR_PCD);
|
|
|
|
pinfo->p2p_dir = P2P_DIR_RECV;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static inline gboolean
|
|
iso14443_block_pcb(guint8 byte)
|
|
{
|
|
if ((byte & 0xE2) == 0x02) {
|
|
/* I-block */
|
|
return TRUE;
|
|
}
|
|
else if ((byte & 0xE6) == 0xA2) {
|
|
/* R-block */
|
|
return TRUE;
|
|
}
|
|
else if ((byte & 0xC7) == 0xC2) {
|
|
/* S-block */
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
static iso14443_transaction_t *
|
|
iso14443_get_transaction(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *it;
|
|
wmem_tree_key_t key[3];
|
|
iso14443_transaction_t *iso14443_trans = NULL;
|
|
/* Is the current message a Waiting-Time-Extension request or response? */
|
|
gboolean wtx = (tvb_get_guint8(tvb, 0) & 0xF7) == 0xF2;
|
|
|
|
/* When going backwards from the current message, we want to link wtx
|
|
messages only to other wtx messages (and non-wtx messages to non-wtx,
|
|
respectively). For this to work, the wtx flag must be the first
|
|
component of the key. */
|
|
key[0].length = 1;
|
|
key[0].key = &wtx;
|
|
key[1].length = 1;
|
|
key[1].key = &pinfo->num;
|
|
key[2].length = 0;
|
|
key[2].key = NULL;
|
|
|
|
/* Is this a request message? WTX requests are sent by the PICC, all
|
|
other requests are sent by the PCD. */
|
|
if (((pinfo->p2p_dir == P2P_DIR_SENT) && !wtx) ||
|
|
((pinfo->p2p_dir == P2P_DIR_RECV) && wtx)) {
|
|
if (PINFO_FD_VISITED(pinfo)) {
|
|
iso14443_trans =
|
|
(iso14443_transaction_t *)wmem_tree_lookup32_array(
|
|
transactions, key);
|
|
if (iso14443_trans && iso14443_trans->rqst_frame==pinfo->num &&
|
|
iso14443_trans->resp_frame!=0) {
|
|
it = proto_tree_add_uint(tree, hf_iso14443_resp_in,
|
|
NULL, 0, 0, iso14443_trans->resp_frame);
|
|
proto_item_set_generated(it);
|
|
}
|
|
}
|
|
else {
|
|
iso14443_trans =
|
|
wmem_new(wmem_file_scope(), iso14443_transaction_t);
|
|
iso14443_trans->rqst_frame = pinfo->num;
|
|
iso14443_trans->resp_frame = 0;
|
|
iso14443_trans->cmd = CMD_TYPE_UNKNOWN;
|
|
wmem_tree_insert32_array(transactions, key, (void *)iso14443_trans);
|
|
}
|
|
}
|
|
else if (((pinfo->p2p_dir == P2P_DIR_SENT) && wtx) ||
|
|
((pinfo->p2p_dir == P2P_DIR_RECV) && !wtx)) {
|
|
iso14443_trans = (iso14443_transaction_t *)wmem_tree_lookup32_array_le(
|
|
transactions, key);
|
|
if (iso14443_trans && iso14443_trans->resp_frame==0) {
|
|
/* there's a pending request, this packet is the response */
|
|
iso14443_trans->resp_frame = pinfo->num;
|
|
}
|
|
|
|
if (iso14443_trans && iso14443_trans->resp_frame == pinfo->num) {
|
|
it = proto_tree_add_uint(tree, hf_iso14443_resp_to,
|
|
NULL, 0, 0, iso14443_trans->rqst_frame);
|
|
proto_item_set_generated(it);
|
|
}
|
|
}
|
|
|
|
return iso14443_trans;
|
|
}
|
|
|
|
|
|
static iso14443_cmd_t iso14443_get_cmd_type(
|
|
tvbuff_t *tvb, packet_info *pinfo, iso14443_transaction_t *trans)
|
|
{
|
|
guint8 first_byte;
|
|
|
|
first_byte = tvb_get_guint8(tvb, 0);
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT) {
|
|
if (tvb_reported_length(tvb) == 1) {
|
|
return CMD_TYPE_WUPA;
|
|
}
|
|
else if (first_byte == 0x05) {
|
|
return CMD_TYPE_WUPB;
|
|
}
|
|
else if (first_byte == 0x50) {
|
|
return CMD_TYPE_HLTA;
|
|
}
|
|
else if (first_byte == 0x1D) {
|
|
return CMD_TYPE_ATTRIB;
|
|
}
|
|
else if (first_byte == 0xE0) {
|
|
return CMD_TYPE_ATS;
|
|
}
|
|
else if ((first_byte & 0xF8) == 0x90) {
|
|
return CMD_TYPE_UID;
|
|
}
|
|
else if (iso14443_block_pcb(first_byte)) {
|
|
return CMD_TYPE_BLOCK;
|
|
}
|
|
}
|
|
else if (pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
if (trans->cmd != CMD_TYPE_UNKNOWN) {
|
|
return trans->cmd;
|
|
}
|
|
else if (iso14443_block_pcb(first_byte)) {
|
|
return CMD_TYPE_BLOCK;
|
|
}
|
|
|
|
/* we don't try to detect any response messages based on their
|
|
length - depending on the log tool, two trailing CRC bytes
|
|
may be added or not */
|
|
}
|
|
|
|
return CMD_TYPE_UNKNOWN;
|
|
}
|
|
|
|
|
|
static gint
|
|
dissect_iso14443_msg(tvbuff_t *tvb, packet_info *pinfo,
|
|
proto_tree *tree, guint8 event)
|
|
{
|
|
gboolean crc_dropped = FALSE;
|
|
iso14443_transaction_t *iso14443_trans;
|
|
iso14443_cmd_t cmd;
|
|
proto_tree *msg_tree;
|
|
gint ret;
|
|
|
|
if (event == ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED ||
|
|
event == ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED) {
|
|
crc_dropped = TRUE;
|
|
}
|
|
|
|
iso14443_trans = iso14443_get_transaction(tvb, pinfo, tree);
|
|
if (!iso14443_trans)
|
|
return -1;
|
|
|
|
cmd = iso14443_get_cmd_type(tvb, pinfo, iso14443_trans);
|
|
if (cmd != CMD_TYPE_UNKNOWN)
|
|
iso14443_trans->cmd = cmd;
|
|
|
|
msg_tree = proto_tree_add_subtree(
|
|
tree, tvb, 0, -1, ett_iso14443_msg, NULL, "Message");
|
|
|
|
ret = dissector_try_uint_new(iso14443_cmd_type_table, cmd,
|
|
tvb, pinfo, msg_tree, FALSE, GUINT_TO_POINTER((guint)crc_dropped));
|
|
if (ret == 0) {
|
|
proto_tree_add_expert(tree, pinfo, &ei_iso14443_unknown_cmd,
|
|
tvb, 0, tvb_captured_length(tvb));
|
|
ret = tvb_captured_length(tvb);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int dissect_iso14443(tvbuff_t *tvb,
|
|
packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
{
|
|
gint packet_len;
|
|
gint offset = 0, offset_ver, offset_evt, offset_len_field;
|
|
gint ret;
|
|
guint8 version, event;
|
|
const gchar *event_str;
|
|
guint16 len_field;
|
|
proto_item *tree_ti;
|
|
proto_tree *iso14443_tree, *hdr_tree;
|
|
tvbuff_t *payload_tvb;
|
|
conversation_t *conv;
|
|
|
|
if (tvb_captured_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 = try_val_to_str(event, iso14443_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, "ISO 14443");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
tree_ti = proto_tree_add_protocol_format(tree, proto_iso14443,
|
|
tvb, 0, tvb_reported_length(tvb), "ISO 14443");
|
|
iso14443_tree = proto_item_add_subtree(tree_ti, ett_iso14443);
|
|
|
|
hdr_tree = proto_tree_add_subtree(iso14443_tree,
|
|
tvb, 0, offset, ett_iso14443_hdr, NULL, "Pseudo header");
|
|
|
|
proto_tree_add_item(hdr_tree, hf_iso14443_hdr_ver,
|
|
tvb, offset_ver, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(hdr_tree, hf_iso14443_event,
|
|
tvb, offset_evt, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(hdr_tree, hf_iso14443_len_field,
|
|
tvb, offset_len_field, 2, ENC_BIG_ENDIAN);
|
|
|
|
if (IS_DATA_TRANSFER(event)) {
|
|
iso14443_set_addrs(event, pinfo);
|
|
|
|
payload_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
ret = dissect_iso14443_msg(payload_tvb, pinfo, iso14443_tree, event);
|
|
if (ret > 0)
|
|
offset += ret;
|
|
}
|
|
else {
|
|
col_set_str(pinfo->cinfo, COL_INFO, event_str);
|
|
|
|
/* all events that are not data transfers close the connection
|
|
to the card (e.g. the field is switched on or off) */
|
|
conv = find_conversation_by_id(pinfo->num, CONVERSATION_ISO14443, ISO14443_CIRCUIT_ID);
|
|
if (conv)
|
|
conv->last_frame = pinfo->num;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
void
|
|
proto_register_iso14443(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_iso14443_hdr_ver,
|
|
{ "Version", "iso14443.hdr_version",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_event,
|
|
{ "Event", "iso14443.event",
|
|
FT_UINT8, BASE_HEX, VALS(iso14443_event), 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_len_field,
|
|
{ "Length field", "iso14443.length_field",
|
|
FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_resp_in,
|
|
{ "Response In", "iso14443.resp_in",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_resp_to,
|
|
{ "Response To", "iso14443.resp_to",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_short_frame,
|
|
{ "Short frame", "iso14443.short_frame",
|
|
FT_UINT8, BASE_HEX, VALS(iso14443_short_frame), 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_atqa_rfu1,
|
|
{ "RFU", "iso14443.atqa_rfu",
|
|
FT_UINT16, BASE_HEX, NULL, 0xF000, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_atqa_rfu2,
|
|
{ "RFU", "iso14443.atqa_rfu",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0020, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_propr_coding,
|
|
{ "Proprietary coding", "iso14443.propr_coding",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0F00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_uid_bits,
|
|
{ "UID bits", "iso14443.uid_bits",
|
|
FT_UINT16, BASE_HEX, NULL, 0x00C0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_uid_size,
|
|
{ "UID size", "iso14443.uid_size",
|
|
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_max_frame_size,
|
|
{ "Maximum frame size", "iso14443.max_frame_size",
|
|
FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_bit_frame_anticoll,
|
|
{ "Bit frame anticollision", "iso14443.bit_frame_anticoll",
|
|
FT_UINT16, BASE_HEX, NULL, 0x001F, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_apf,
|
|
{ "Anticollision prefix", "iso14443.apf",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_afi,
|
|
{ "Application Family Identifier", "iso14443.afi",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ext_atqb,
|
|
{ "Extended ATQB", "iso14443.ext_atqb", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x10, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_wupb,
|
|
{ "WUPB/REQB", "iso14443.wupb",
|
|
FT_BOOLEAN, 8, TFS(&tfs_wupb_reqb), 0x08, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_n,
|
|
{ "N", "iso14443.n",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_atqb_start,
|
|
{ "Start byte", "iso14443.atqb_start",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_app_data,
|
|
{ "Application data", "iso14443.application_data",
|
|
FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_num_afi_apps,
|
|
{ "Number of applications for this AFI", "iso14443.num_afi_apps",
|
|
FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_total_num_apps,
|
|
{ "Total number of applications", "iso14443.total_num_apps",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_prot_inf,
|
|
{ "Protocol info", "iso14443.protocol_info",
|
|
FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_bit_rate_cap,
|
|
{ "Bit rate capability", "iso14443.bit_rate_cap",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_same_bit_rate,
|
|
{ "Same bit rate in both directions", "iso14443.same_bit_rate",
|
|
FT_BOOLEAN, 8, TFS(&tfs_required_not_required), 0x80, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_picc_pcd_847,
|
|
{ "PICC to PCD, 847kbit/s", "iso14443.picc_pcd_847", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x40, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_picc_pcd_424,
|
|
{ "PICC to PCD, 424kbit/s", "iso14443.picc_pcd_424", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x20, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_picc_pcd_212,
|
|
{ "PICC to PCD, 212kbit/s", "iso14443.picc_pcd_212", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x10, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pcd_picc_847,
|
|
{ "PCD to PICC, 847kbit/s", "iso14443.pcd_picc_847", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pcd_picc_424,
|
|
{ "PCD to PICC, 424kbit/s", "iso14443.pcd_picc_424", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x02, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pcd_picc_212,
|
|
{ "PCD to PICC, 212kbit/s", "iso14443.pcd_picc_212", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x01, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_max_frame_size_code,
|
|
{ "Max frame size code", "iso14443.max_frame_size_code",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_prot_type,
|
|
{ "Protocol type", "iso14443.protocol_type",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0F, NULL, HFILL }
|
|
},
|
|
/* we're using min tr2 in two different places (atqb and attrib)
|
|
the relative position within the byte is identical so we can
|
|
set the mask here */
|
|
{ &hf_iso14443_min_tr2,
|
|
{ "Minimum TR2", "iso14443.min_tr2",
|
|
FT_UINT8, BASE_HEX, NULL, 0x06, NULL, HFILL }
|
|
},
|
|
/* the same goes for the 14443-4 compliant flag */
|
|
{ &hf_iso14443_4_compl_atqb,
|
|
{ "Compliant with ISO 14443-4", "iso14443.4_compliant", FT_BOOLEAN, 8,
|
|
TFS(&tfs_compliant_not_compliant), 0x01, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_fwi,
|
|
{ "FWI", "iso14443.fwi", FT_UINT8, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_sfgi,
|
|
{ "SFGI", "iso14443.sfgi", FT_UINT8, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_adc,
|
|
{ "Application Data Coding", "iso14443.adc", FT_BOOLEAN, 8,
|
|
TFS(&tfs_iso_propr), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_nad_supported,
|
|
{ "NAD", "iso14443.nad_supported", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_cid_supported,
|
|
{ "CID", "iso14443.cid_supported", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_hlta,
|
|
{ "HLTA", "iso14443.hlta",
|
|
FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_sel,
|
|
{ "SEL", "iso14443.sel",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_nvb,
|
|
{ "NVB", "iso14443.nvb",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_4_compl_sak,
|
|
{ "Compliant with ISO 14443-4", "iso14443.4_compliant", FT_BOOLEAN, 8,
|
|
TFS(&tfs_compliant_not_compliant), 0x20, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_uid_complete,
|
|
{ "UID complete", "iso14443.uid_complete", FT_BOOLEAN, 8,
|
|
TFS(&tfs_incomplete_complete), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ct,
|
|
{ "CT", "iso14443.ct",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_uid_cln,
|
|
{ "UID_CLn", "iso14443.uid_cln",
|
|
FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_bcc,
|
|
{ "BCC", "iso14443.bcc",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_rats_start,
|
|
{ "Start byte", "iso14443.rats_start",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_fsdi,
|
|
{ "FSDI", "iso14443.fsdi",
|
|
FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_fsd,
|
|
{ "FSD", "iso14443.fsd",
|
|
FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_cid,
|
|
{ "CID", "iso14443.cid",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_tl,
|
|
{ "Length byte TL", "iso14443.tl",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_t0,
|
|
{ "Format byte T0", "iso14443.t0",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_tc1_transmitted,
|
|
{ "TC(1) transmitted", "iso14443.tc1_transmitted",
|
|
FT_BOOLEAN, 8, NULL, HAVE_TC1, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_tb1_transmitted,
|
|
{ "TB(1) transmitted", "iso14443.tb1_transmitted",
|
|
FT_BOOLEAN, 8, NULL, HAVE_TB1, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ta1_transmitted,
|
|
{ "TA(1) transmitted", "iso14443.ta1_transmitted",
|
|
FT_BOOLEAN, 8, NULL, HAVE_TA1, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_fsci,
|
|
{ "FSCI", "iso14443.fsci",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_fsc,
|
|
{ "FSC", "iso14443.fsc",
|
|
FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_tc1,
|
|
{ "Interface byte TC1", "iso14443.tc1",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_tb1,
|
|
{ "Interface byte TB1", "iso14443.tb1",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ta1,
|
|
{ "Interface byte TA1", "iso14443.ta1",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_same_d,
|
|
{ "Same D for both directions", "iso14443.same_d", FT_BOOLEAN, 8,
|
|
TFS(&tfs_required_not_required), 0x80, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ds8,
|
|
{ "DS=8", "iso14443.ds8", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x40, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ds4,
|
|
{ "DS=4", "iso14443.ds4", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x20, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_ds2,
|
|
{ "DS=2", "iso14443.ds2", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x10, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_dr8,
|
|
{ "DR=8", "iso14443.dr8", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_dr4,
|
|
{ "DR=4", "iso14443.dr4", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x02, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_dr2,
|
|
{ "DR=2", "iso14443.dr2", FT_BOOLEAN, 8,
|
|
TFS(&tfs_supported_not_supported), 0x01, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_hist_bytes,
|
|
{ "Historical bytes", "iso14443.hist_bytes",
|
|
FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_attrib_start,
|
|
{ "Start byte", "iso14443.attrib_start",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pupi,
|
|
{ "PUPI", "iso14443.pupi",
|
|
FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_param1,
|
|
{ "Param 1", "iso14443.param1",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_min_tr0,
|
|
{ "Minimum TR0", "iso14443.min_tr0",
|
|
FT_UINT8, BASE_HEX, NULL, 0xC0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_min_tr1,
|
|
{ "Minimum TR1", "iso14443.min_tr1",
|
|
FT_UINT8, BASE_HEX, NULL, 0x30, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_eof,
|
|
{ "EOF", "iso14443.eof", FT_BOOLEAN, 8,
|
|
TFS(&tfs_not_required_required), 0x08, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_sof,
|
|
{ "SOF", "iso14443.sof", FT_BOOLEAN, 8,
|
|
TFS(&tfs_not_required_required), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_param2,
|
|
{ "Param 2", "iso14443.param2",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_bitrate_picc_pcd,
|
|
{ "Bit rate PICC to PCD", "iso14443.bitrate_picc_pcd", FT_UINT8,
|
|
BASE_HEX, VALS(iso14443_bitrates), 0xC0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_bitrate_pcd_picc,
|
|
{ "Bit rate PCD to PICC", "iso14443.bitrate_pcd_picc", FT_UINT8,
|
|
BASE_HEX, VALS(iso14443_bitrates), 0x30, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_param3,
|
|
{ "Param 3", "iso14443.param3",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_param4,
|
|
{ "Param 4", "iso14443.param4",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_mbli,
|
|
{ "MBLI", "iso14443.mbli",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pcb,
|
|
{ "PCB", "iso14443.pcb",
|
|
FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_block_type,
|
|
{ "Block type", "iso14443.block_type", FT_UINT8,
|
|
BASE_HEX, VALS(iso14443_block_type), 0xC0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_i_blk_chaining,
|
|
{ "Chaining", "iso14443.i_block_chaining", FT_BOOLEAN, 8,
|
|
TFS(&tfs_set_notset), 0x10, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_cid_following,
|
|
{ "CID following", "iso14443.cid_following", FT_BOOLEAN, 8,
|
|
TFS(&tfs_true_false), 0x08, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_nad_following,
|
|
{ "NAD following", "iso14443.nad_following", FT_BOOLEAN, 8,
|
|
TFS(&tfs_true_false), 0x04, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_nak,
|
|
{ "NAK/ACK", "iso14443.nak", FT_BOOLEAN, 8,
|
|
TFS(&tfs_nak_ack), 0x10, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_blk_num,
|
|
{ "Block number", "iso14443.block_number",
|
|
FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_s_blk_cmd,
|
|
{ "Command", "iso14443.s_block_cmd", FT_UINT8,
|
|
BASE_HEX, VALS(iso14443_s_block_cmd), 0x30, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_pwr_lvl_ind,
|
|
{ "Power level indication", "iso14443.pwr_lvl_ind",
|
|
FT_UINT8, BASE_HEX, NULL, 0xC0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_wtxm,
|
|
{ "WTXM", "iso14443.wtxm",
|
|
FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_inf,
|
|
{ "INF", "iso14443.inf",
|
|
FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frags,
|
|
{ "Apdu fragments", "iso14443.apdu_fragments",
|
|
FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag,
|
|
{ "Apdu fragment", "iso14443.apdu_fragment",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_overlap,
|
|
{ "Apdu fragment overlap", "iso14443.apdu_fragment.overlap",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_overlap_conflicts,
|
|
{ "Apdu fragment overlapping with conflicting data",
|
|
"iso14443.apdu_fragment.overlap.conflicts",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_multiple_tails,
|
|
{ "Apdu has multiple tail fragments",
|
|
"iso14443.apdu_fragment.multiple_tails",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_too_long_frag,
|
|
{ "Apdu fragment too long", "iso14443.apdu_fragment.too_long_fragment",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_err,
|
|
{ "Apdu defragmentation error", "iso14443.apdu_fragment.error",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_frag_cnt,
|
|
{ "Apdu fragment count", "iso14443.apdu_fragment.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_reass_in,
|
|
{ "Apdu reassembled in", "iso14443.apdu_reassembled.in",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_reass_len,
|
|
{ "Reassembled apdu length", "iso14443.apdu_reassembled.length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_crc,
|
|
{ "CRC", "iso14443.crc",
|
|
FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }
|
|
},
|
|
{ &hf_iso14443_crc_status,
|
|
{ "CRC Status", "iso14443.crc.status",
|
|
FT_UINT8, BASE_NONE, VALS(proto_checksum_vals), 0, NULL, HFILL }
|
|
}
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_iso14443,
|
|
&ett_iso14443_hdr,
|
|
&ett_iso14443_msg,
|
|
&ett_iso14443_app_data,
|
|
&ett_iso14443_prot_inf,
|
|
&ett_iso14443_bit_rate,
|
|
&ett_iso14443_prot_type,
|
|
&ett_iso14443_ats_t0,
|
|
&ett_iso14443_ats_ta1,
|
|
&ett_iso14443_ats_tb1,
|
|
&ett_iso14443_ats_tc1,
|
|
&ett_iso14443_attr_p1,
|
|
&ett_iso14443_attr_p2,
|
|
&ett_iso14443_attr_p3,
|
|
&ett_iso14443_attr_p4,
|
|
&ett_iso14443_pcb,
|
|
&ett_iso14443_inf,
|
|
&ett_iso14443_frag,
|
|
&ett_iso14443_frags
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_iso14443_unknown_cmd,
|
|
{ "iso14443.cmd.unknown", PI_PROTOCOL, PI_WARN,
|
|
"Unknown ISO1443 command", EXPFILL }
|
|
},
|
|
{ &ei_iso14443_wrong_crc,
|
|
{ "iso14443.crc.wrong", PI_PROTOCOL, PI_WARN, "Wrong CRC", EXPFILL }
|
|
},
|
|
{ &ei_iso14443_uid_inval_size,
|
|
{ "iso14443.uid.invalid_size", PI_PROTOCOL, PI_WARN,
|
|
"Invalid UID size", EXPFILL }
|
|
}
|
|
};
|
|
|
|
expert_module_t* expert_iso14443;
|
|
|
|
proto_iso14443 = proto_register_protocol(
|
|
"ISO/IEC 14443", "ISO 14443", "iso14443");
|
|
proto_register_field_array(proto_iso14443, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_iso14443 = expert_register_protocol(proto_iso14443);
|
|
expert_register_field_array(expert_iso14443, ei, array_length(ei));
|
|
|
|
iso14443_cmd_type_table = register_dissector_table(
|
|
"iso14443.cmd_type", "ISO14443 Command Type",
|
|
proto_iso14443, FT_UINT8, BASE_DEC);
|
|
|
|
reassembly_table_register(&i_block_reassembly_table,
|
|
&addresses_reassembly_table_functions);
|
|
|
|
iso14443_handle =
|
|
register_dissector("iso14443", dissect_iso14443, proto_iso14443);
|
|
|
|
transactions = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
|
|
|
|
iso14443_subdissector_table =
|
|
register_decode_as_next_proto(proto_iso14443,
|
|
"iso14443.subdissector", "ISO14443 payload subdissector", NULL);
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_iso14443(void)
|
|
{
|
|
dissector_handle_t cmd_type_handle;
|
|
|
|
dissector_add_uint("wtap_encap", WTAP_ENCAP_ISO14443, iso14443_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_wupa, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_WUPA, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_wupb, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_WUPB, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_hlta, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_HLTA, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_uid, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_UID, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_ats, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_ATS, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_attrib, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_ATTRIB, cmd_type_handle);
|
|
|
|
cmd_type_handle = create_dissector_handle(
|
|
dissect_iso14443_cmd_type_block, proto_iso14443);
|
|
dissector_add_uint("iso14443.cmd_type", CMD_TYPE_BLOCK, cmd_type_handle);
|
|
}
|
|
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|