forked from osmocom/wireshark
![Bill Meier](/assets/img/avatar_default.png)
- Move a global var to be local to a fcn; - Remove an unneeded forward declaration; - Do some minor reformatting. svn path=/trunk/; revision=40486
398 lines
15 KiB
C
398 lines
15 KiB
C
/* packet-usb-ccid.c
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* Dissector for the Integrated Circuit Card Interface Device Class
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*
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* References:
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* http://www.usb.org/developers/devclass_docs/DWG_Smart-Card_CCID_Rev110.pdf
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*
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* Copyright 2011, Tyson Key <tyson.key@gmail.com>
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*
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* $Id$
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/dissectors/packet-usb.h>
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static int proto_ccid = -1;
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static int hf_ccid_bMessageType = -1;
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static int hf_ccid_dwLength = -1;
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static int hf_ccid_bSlot = -1;
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static int hf_ccid_bSeq = -1;
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static int hf_ccid_bStatus = -1;
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static int hf_ccid_bError = -1;
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static int hf_ccid_bChainParameter = -1;
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static int hf_ccid_bPowerSelect = -1;
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static int hf_ccid_bClockStatus = -1;
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static int hf_ccid_bProtocolNum = -1;
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static int hf_ccid_bBWI = -1;
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static int hf_ccid_wLevelParameter = -1;
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/* Standardised Bulk Out message types */
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#define PC_RDR_SET_PARAMS 0x61
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#define PC_RDR_ICC_ON 0x62
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#define PC_RDR_ICC_OFF 0x63
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#define PC_RDR_GET_SLOT_STATUS 0x65
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#define PC_RDR_SECURE 0x69
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#define PC_RDR_T0APDU 0x6A
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#define PC_RDR_ESCAPE 0x6B
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#define PC_RDR_GET_PARAMS 0x6C
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#define PC_RDR_RESET_PARAMS 0x6D
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#define PC_RDR_ICC_CLOCK 0x6E
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#define PC_RDR_XFR_BLOCK 0x6F
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#define PC_RDR_MECH 0x71
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#define PC_RDR_ABORT 0x72
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#define PC_RDR_DATA_CLOCK 0x73
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/* Standardised Bulk In message types */
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#define RDR_PC_DATA_BLOCK 0x80
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#define RDR_PC_SLOT_STATUS 0x81
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#define RDR_PC_PARAMS 0x82
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#define RDR_PC_ESCAPE 0x83
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#define RDR_PC_DATA_CLOCK 0x84
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static const value_string ccid_messagetypes_vals[] = {
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/* Standardised Bulk Out message types */
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{PC_RDR_SET_PARAMS , "PC_to_RDR_SetParameters"},
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{PC_RDR_ICC_ON , "PC_to_RDR_IccPowerOn"},
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{PC_RDR_ICC_OFF , "PC_to_RDR_IccPowerOff"},
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{PC_RDR_GET_SLOT_STATUS , "PC_to_RDR_GetSlotStatus"},
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{PC_RDR_SECURE , "PC_to_RDR_Secure"},
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{PC_RDR_T0APDU , "PC_to_RDR_T0APDU"},
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{PC_RDR_ESCAPE , "PC_to_RDR_Escape"},
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{PC_RDR_GET_PARAMS , "PC_to_RDR_GetParameters"},
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{PC_RDR_RESET_PARAMS , "PC_to_RDR_ResetParameters"},
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{PC_RDR_ICC_CLOCK , "PC_to_RDR_IccClock"},
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{PC_RDR_XFR_BLOCK , "PC_to_RDR_XfrBlock"},
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{PC_RDR_MECH , "PC_to_RDR_Mechanical"},
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{PC_RDR_ABORT , "PC_to_RDR_Abort"},
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{PC_RDR_DATA_CLOCK , "PC_to_RDR_SetDataRateAndClockFrequency"},
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/* Standardised Bulk In message types */
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{RDR_PC_DATA_BLOCK , "RDR_to_PC_DataBlock"},
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{RDR_PC_SLOT_STATUS , "RDR_to_PC_SlotStatus"},
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{RDR_PC_PARAMS , "RDR_to_PC_Parameters"},
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{RDR_PC_ESCAPE , "RDR_to_PC_Escape"},
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{RDR_PC_DATA_CLOCK , "RDR_to_PC_DataRateAndClockFrequency"},
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/* End of message types */
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{0x00, NULL}
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};
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static const value_string ccid_voltage_levels_vals[] = {
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/* Standardised voltage levels */
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{0x00, "Automatic Voltage Selection"},
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{0x01, "5.0 volts"},
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{0x02, "3.0 volts"},
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{0x03, "1.8 volts"},
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/* End of voltage levels */
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{0x00, NULL}
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};
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static const value_string ccid_clock_states_vals[] = {
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/* Standardised clock states */
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{0x00, "Clock running"},
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{0x01, "Clock stopped in state L"},
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{0x02, "Clock stopped in state H"},
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{0x03, "Clock stopped in an unknown state"},
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/* End of clock states */
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{0x00, NULL}
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};
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static const value_string ccid_proto_structs_vals[] = {
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/* Standardised clock states */
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{0x00, "Structure for protocol T=0"},
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{0x01, "Structure for protocol T=1"},
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/* Marked as RFU, but added for completeness: */
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{0x80, "Structure for 2-wire protocol"},
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{0x81, "Structure for 3-wire protocol"},
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{0x82, "Structure for I2C protocol"},
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/* End of protocol structures */
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{0x00, NULL}
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};
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static dissector_handle_t data_handle;
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static dissector_table_t ccid_dissector_table;
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/* Subtree handles: set by register_subtree_array */
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static gint ett_ccid = -1;
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static void
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dissect_ccid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *item;
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proto_tree *ccid_tree;
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guint8 cmd;
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tvbuff_t *next_tvb;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "USBCCID");
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col_set_str(pinfo->cinfo, COL_INFO, "CCID Packet");
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if (tree) {
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/* Start with a top-level item to add everything else to */
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item = proto_tree_add_item(tree, proto_ccid, tvb, 0, -1, ENC_NA);
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ccid_tree = proto_item_add_subtree(item, ett_ccid);
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proto_tree_add_item(ccid_tree, hf_ccid_bMessageType, tvb, 0, 1, ENC_NA);
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cmd = tvb_get_guint8(tvb, 0);
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switch (cmd) {
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case PC_RDR_SET_PARAMS:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bProtocolNum, tvb, 7, 1, ENC_LITTLE_ENDIAN);
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/* Placeholder for abRFU */
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proto_tree_add_text(ccid_tree, tvb, 8, 2, "Reserved for Future Use");
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next_tvb = tvb_new_subset_remaining(tvb, 10);
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call_dissector(data_handle, next_tvb, pinfo, ccid_tree);
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Set Parameters");
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break;
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case PC_RDR_ICC_ON:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bPowerSelect, tvb, 7, 1, ENC_LITTLE_ENDIAN);
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/* Placeholder for abRFU */
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proto_tree_add_text(ccid_tree, tvb, 8, 2, "Reserved for Future Use");
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: ICC Power On");
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break;
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case PC_RDR_ICC_OFF:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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/* Placeholder for abRFU */
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proto_tree_add_text(ccid_tree, tvb, 7, 3, "Reserved for Future Use");
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: ICC Power Off");
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break;
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case PC_RDR_GET_SLOT_STATUS:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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/* Placeholder for abRFU */
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proto_tree_add_text(ccid_tree, tvb, 7, 3, "Reserved for Future Use");
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Get Slot Status");
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break;
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case PC_RDR_SECURE:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Secure");
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break;
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case PC_RDR_T0APDU:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: T=0 APDU");
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break;
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case PC_RDR_ESCAPE:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Escape");
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break;
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case PC_RDR_GET_PARAMS:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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/* Placeholder for abRFU */
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proto_tree_add_text(ccid_tree, tvb, 7, 3, "Reserved for Future Use");
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Get Parameters");
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break;
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case PC_RDR_RESET_PARAMS:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Reset Parameters");
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break;
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case PC_RDR_ICC_CLOCK:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: ICC Clock");
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break;
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case PC_RDR_XFR_BLOCK:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bBWI, tvb, 7, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_wLevelParameter, tvb, 8, 2, ENC_LITTLE_ENDIAN);
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next_tvb = tvb_new_subset_remaining(tvb, 10);
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call_dissector(data_handle, next_tvb, pinfo, tree);
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Transfer Block");
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break;
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case PC_RDR_MECH:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Mechanical");
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break;
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case PC_RDR_ABORT:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Abort");
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break;
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case PC_RDR_DATA_CLOCK:
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col_set_str(pinfo->cinfo, COL_INFO, "PC to Reader: Set Data Rate and Clock Frequency");
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break;
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case RDR_PC_DATA_BLOCK:
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col_set_str(pinfo->cinfo, COL_INFO, "Reader to PC: Data Block");
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bStatus, tvb, 7, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bError, tvb, 8, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bChainParameter, tvb, 9, 1, ENC_LITTLE_ENDIAN);
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next_tvb = tvb_new_subset_remaining(tvb, 10);
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call_dissector(data_handle, next_tvb, pinfo, ccid_tree);
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break;
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case RDR_PC_SLOT_STATUS:
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proto_tree_add_item(ccid_tree, hf_ccid_dwLength, tvb, 1, 4, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSlot, tvb, 5, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bSeq, tvb, 6, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bStatus, tvb, 7, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bError, tvb, 8, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(ccid_tree, hf_ccid_bClockStatus, tvb, 9, 1, ENC_LITTLE_ENDIAN);
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col_set_str(pinfo->cinfo, COL_INFO, "Reader to PC: Slot Status");
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break;
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case RDR_PC_PARAMS:
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col_set_str(pinfo->cinfo, COL_INFO, "Reader to PC: Parameters");
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break;
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case RDR_PC_ESCAPE:
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col_set_str(pinfo->cinfo, COL_INFO, "Reader to PC: Escape");
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break;
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case RDR_PC_DATA_CLOCK:
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col_set_str(pinfo->cinfo, COL_INFO, "Reader to PC: Data Rate and Clock Frequency");
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break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Unknown type");
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break;
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}
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}
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}
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void
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proto_register_ccid(void)
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{
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static hf_register_info hf[] = {
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{&hf_ccid_bMessageType,
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{ "Message Type", "ccid.bMessageType", FT_UINT8, BASE_HEX,
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VALS(ccid_messagetypes_vals), 0x0, NULL, HFILL }},
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{&hf_ccid_dwLength,
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{ "Packet Length", "ccid.dwLength", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bSlot,
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{ "Slot", "ccid.bSlot", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bSeq,
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{ "Sequence", "ccid.bSeq", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bStatus,
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{ "Status", "ccid.bStatus", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bError,
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{ "Error", "ccid.bError", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bChainParameter,
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{ "Chain Parameter", "ccid.bChainParameter", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_bPowerSelect,
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{ "Voltage Level", "ccid.bPowerSelect", FT_UINT8, BASE_HEX,
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VALS(ccid_voltage_levels_vals), 0x0, NULL, HFILL }},
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{&hf_ccid_bClockStatus,
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{ "Clock Status", "ccid.bClockStatus", FT_UINT8, BASE_HEX,
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VALS(ccid_clock_states_vals), 0x0, NULL, HFILL }},
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{&hf_ccid_bProtocolNum,
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{ "Data Structure Type", "ccid.bProtocolNum", FT_UINT8, BASE_HEX,
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VALS(ccid_proto_structs_vals), 0x0, NULL, HFILL }},
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{&hf_ccid_bBWI,
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{ "Block Wait Time Integer", "ccid.bBWI", FT_UINT8, BASE_HEX,
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NULL, 0x0, NULL, HFILL }},
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{&hf_ccid_wLevelParameter,
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{ "Level Parameter", "ccid.wLevelParameter", FT_UINT8, BASE_HEX,
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NULL, 0x0, NULL, HFILL }}
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};
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static gint *ett[] = {
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&ett_ccid
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};
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proto_ccid = proto_register_protocol("USB CCID", "USBCCID", "ccid");
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proto_register_field_array(proto_ccid, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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ccid_dissector_table = register_dissector_table("ccid.payload",
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"CCID Payload", FT_UINT8, BASE_DEC);
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register_dissector("ccid", dissect_ccid, proto_ccid);
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}
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/* Handler registration */
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void
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proto_reg_handoff_ccid(void)
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{
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dissector_handle_t usb_ccid_bulk_handle;
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data_handle = find_dissector("data");
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usb_ccid_bulk_handle = find_dissector("ccid");
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dissector_add_uint("usb.bulk", IF_CLASS_SMART_CARD, usb_ccid_bulk_handle);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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