root / hw / usb-ccid.c @ 36707144
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/*
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* CCID Device emulation
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*
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* Written by Alon Levy, with contributions from Robert Relyea.
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*
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* Based on usb-serial.c, see it's copyright and attributions below.
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*
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* This work is licensed under the terms of the GNU GPL, version 2.1 or later.
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* See the COPYING file in the top-level directory.
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* ------- (original copyright & attribution for usb-serial.c below) --------
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* Copyright (c) 2006 CodeSourcery.
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* Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org>
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* Written by Paul Brook, reused for FTDI by Samuel Thibault,
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*/
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/*
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* References:
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*
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* CCID Specification Revision 1.1 April 22nd 2005
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* "Universal Serial Bus, Device Class: Smart Card"
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* Specification for Integrated Circuit(s) Cards Interface Devices
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*
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* Endianess note: from the spec (1.3)
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* "Fields that are larger than a byte are stored in little endian"
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*
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* KNOWN BUGS
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* 1. remove/insert can sometimes result in removed state instead of inserted.
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* This is a result of the following:
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* symptom: dmesg shows ERMOTEIO (-121), pcscd shows -99. This can happen
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* when a short packet is sent, as seen in uhci-usb.c, resulting from a urb
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* from the guest requesting SPD and us returning a smaller packet.
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* Not sure which messages trigger this.
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*/
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#include "qemu-common.h" |
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#include "qemu-error.h" |
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#include "usb.h" |
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#include "monitor.h" |
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#include "hw/ccid.h" |
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#define DPRINTF(s, lvl, fmt, ...) \
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do { \
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if (lvl <= s->debug) { \
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printf("usb-ccid: " fmt , ## __VA_ARGS__); \ |
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} \ |
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} while (0) |
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#define D_WARN 1 |
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#define D_INFO 2 |
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#define D_MORE_INFO 3 |
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#define D_VERBOSE 4 |
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#define CCID_DEV_NAME "usb-ccid" |
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/*
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* The two options for variable sized buffers:
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* make them constant size, for large enough constant,
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* or handle the migration complexity - VMState doesn't handle this case.
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* sizes are expected never to be exceeded, unless guest misbehaves.
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*/
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#define BULK_OUT_DATA_SIZE 65536 |
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#define PENDING_ANSWERS_NUM 128 |
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#define BULK_IN_BUF_SIZE 384 |
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#define BULK_IN_PENDING_NUM 8 |
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#define InterfaceOutClass \
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((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8)
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#define InterfaceInClass \
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((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8)
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#define CCID_MAX_PACKET_SIZE 64 |
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#define CCID_CONTROL_ABORT 0x1 |
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#define CCID_CONTROL_GET_CLOCK_FREQUENCIES 0x2 |
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#define CCID_CONTROL_GET_DATA_RATES 0x3 |
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#define CCID_PRODUCT_DESCRIPTION "QEMU USB CCID" |
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#define CCID_VENDOR_DESCRIPTION "QEMU " QEMU_VERSION |
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#define CCID_INTERFACE_NAME "CCID Interface" |
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#define CCID_SERIAL_NUMBER_STRING "1" |
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/*
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* Using Gemplus Vendor and Product id
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* Effect on various drivers:
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* usbccid.sys (winxp, others untested) is a class driver so it doesn't care.
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* linux has a number of class drivers, but openct filters based on
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* vendor/product (/etc/openct.conf under fedora), hence Gemplus.
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*/
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#define CCID_VENDOR_ID 0x08e6 |
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#define CCID_PRODUCT_ID 0x4433 |
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#define CCID_DEVICE_VERSION 0x0000 |
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|
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/*
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* BULK_OUT messages from PC to Reader
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* Defined in CCID Rev 1.1 6.1 (page 26)
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*/
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#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn 0x62 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff 0x63 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus 0x65 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock 0x6f |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters 0x6c |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters 0x6d |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters 0x61 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_Escape 0x6b |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_IccClock 0x6e |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_T0APDU 0x6a |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_Secure 0x69 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical 0x71 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_Abort 0x72 |
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#define CCID_MESSAGE_TYPE_PC_to_RDR_SetDataRateAndClockFrequency 0x73 |
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/*
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* BULK_IN messages from Reader to PC
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* Defined in CCID Rev 1.1 6.2 (page 48)
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*/
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#define CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock 0x80 |
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#define CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus 0x81 |
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#define CCID_MESSAGE_TYPE_RDR_to_PC_Parameters 0x82 |
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#define CCID_MESSAGE_TYPE_RDR_to_PC_Escape 0x83 |
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#define CCID_MESSAGE_TYPE_RDR_to_PC_DataRateAndClockFrequency 0x84 |
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/*
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* INTERRUPT_IN messages from Reader to PC
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* Defined in CCID Rev 1.1 6.3 (page 56)
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*/
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#define CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange 0x50 |
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#define CCID_MESSAGE_TYPE_RDR_to_PC_HardwareError 0x51 |
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/*
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* Endpoints for CCID - addresses are up to us to decide.
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* To support slot insertion and removal we must have an interrupt in ep
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* in addition we need a bulk in and bulk out ep
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* 5.2, page 20
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*/
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#define CCID_INT_IN_EP 1 |
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#define CCID_BULK_IN_EP 2 |
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#define CCID_BULK_OUT_EP 3 |
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/* bmSlotICCState masks */
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#define SLOT_0_STATE_MASK 1 |
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#define SLOT_0_CHANGED_MASK 2 |
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/* Status codes that go in bStatus (see 6.2.6) */
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enum {
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ICC_STATUS_PRESENT_ACTIVE = 0,
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ICC_STATUS_PRESENT_INACTIVE, |
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ICC_STATUS_NOT_PRESENT |
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}; |
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enum {
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COMMAND_STATUS_NO_ERROR = 0,
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COMMAND_STATUS_FAILED, |
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COMMAND_STATUS_TIME_EXTENSION_REQUIRED |
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}; |
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/* Error codes that go in bError (see 6.2.6) */
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enum {
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ERROR_CMD_NOT_SUPPORTED = 0,
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ERROR_CMD_ABORTED = -1,
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ERROR_ICC_MUTE = -2,
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ERROR_XFR_PARITY_ERROR = -3,
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ERROR_XFR_OVERRUN = -4,
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ERROR_HW_ERROR = -5,
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}; |
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/* 6.2.6 RDR_to_PC_SlotStatus definitions */
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enum {
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CLOCK_STATUS_RUNNING = 0,
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/*
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* 0 - Clock Running, 1 - Clock stopped in State L, 2 - H,
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* 3 - unkonwn state. rest are RFU
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*/
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}; |
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typedef struct __attribute__ ((__packed__)) CCID_Header { |
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uint8_t bMessageType; |
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uint32_t dwLength; |
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uint8_t bSlot; |
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uint8_t bSeq; |
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} CCID_Header; |
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typedef struct __attribute__ ((__packed__)) CCID_BULK_IN { |
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CCID_Header hdr; |
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uint8_t bStatus; /* Only used in BULK_IN */
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uint8_t bError; /* Only used in BULK_IN */
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} CCID_BULK_IN; |
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typedef struct __attribute__ ((__packed__)) CCID_SlotStatus { |
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CCID_BULK_IN b; |
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uint8_t bClockStatus; |
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} CCID_SlotStatus; |
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typedef struct __attribute__ ((__packed__)) CCID_Parameter { |
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CCID_BULK_IN b; |
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uint8_t bProtocolNum; |
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uint8_t abProtocolDataStructure[0];
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} CCID_Parameter; |
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typedef struct __attribute__ ((__packed__)) CCID_DataBlock { |
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CCID_BULK_IN b; |
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uint8_t bChainParameter; |
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uint8_t abData[0];
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} CCID_DataBlock; |
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/* 6.1.4 PC_to_RDR_XfrBlock */
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typedef struct __attribute__ ((__packed__)) CCID_XferBlock { |
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CCID_Header hdr; |
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uint8_t bBWI; /* Block Waiting Timeout */
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uint16_t wLevelParameter; /* XXX currently unused */
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uint8_t abData[0];
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} CCID_XferBlock; |
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typedef struct __attribute__ ((__packed__)) CCID_IccPowerOn { |
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CCID_Header hdr; |
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uint8_t bPowerSelect; |
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uint16_t abRFU; |
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} CCID_IccPowerOn; |
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typedef struct __attribute__ ((__packed__)) CCID_IccPowerOff { |
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CCID_Header hdr; |
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uint16_t abRFU; |
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} CCID_IccPowerOff; |
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typedef struct __attribute__ ((__packed__)) CCID_SetParameters { |
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CCID_Header hdr; |
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uint8_t bProtocolNum; |
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uint16_t abRFU; |
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uint8_t abProtocolDataStructure[0];
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} CCID_SetParameters; |
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typedef struct CCID_Notify_Slot_Change { |
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uint8_t bMessageType; /* CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange */
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uint8_t bmSlotICCState; |
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} CCID_Notify_Slot_Change; |
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/* used for DataBlock response to XferBlock */
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typedef struct Answer { |
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uint8_t slot; |
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uint8_t seq; |
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} Answer; |
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/* pending BULK_IN messages */
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typedef struct BulkIn { |
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uint8_t data[BULK_IN_BUF_SIZE]; |
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uint32_t len; |
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uint32_t pos; |
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} BulkIn; |
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enum {
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MIGRATION_NONE, |
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MIGRATION_MIGRATED, |
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}; |
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typedef struct CCIDBus CCIDBus; |
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typedef struct USBCCIDState USBCCIDState; |
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#define MAX_PROTOCOL_SIZE 7 |
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/*
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* powered - defaults to true, changed by PowerOn/PowerOff messages
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*/
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struct USBCCIDState {
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USBDevice dev; |
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CCIDBus *bus; |
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CCIDCardState *card; |
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CCIDCardInfo *cardinfo; /* caching the info pointer */
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BulkIn bulk_in_pending[BULK_IN_PENDING_NUM]; /* circular */
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uint32_t bulk_in_pending_start; |
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uint32_t bulk_in_pending_end; /* first free */
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uint32_t bulk_in_pending_num; |
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BulkIn *current_bulk_in; |
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uint8_t bulk_out_data[BULK_OUT_DATA_SIZE]; |
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uint32_t bulk_out_pos; |
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uint64_t last_answer_error; |
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Answer pending_answers[PENDING_ANSWERS_NUM]; |
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uint32_t pending_answers_start; |
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uint32_t pending_answers_end; |
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uint32_t pending_answers_num; |
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uint8_t bError; |
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uint8_t bmCommandStatus; |
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uint8_t bProtocolNum; |
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uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE]; |
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uint32_t ulProtocolDataStructureSize; |
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uint32_t state_vmstate; |
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uint32_t migration_target_ip; |
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uint16_t migration_target_port; |
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uint8_t migration_state; |
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uint8_t bmSlotICCState; |
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uint8_t powered; |
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uint8_t notify_slot_change; |
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uint8_t debug; |
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}; |
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/*
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* CCID Spec chapter 4: CCID uses a standard device descriptor per Chapter 9,
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* "USB Device Framework", section 9.6.1, in the Universal Serial Bus
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* Specification.
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*
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* This device implemented based on the spec and with an Athena Smart Card
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* Reader as reference:
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* 0dc3:1004 Athena Smartcard Solutions, Inc.
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*/
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static const uint8_t qemu_ccid_dev_descriptor[] = { |
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0x12, /* u8 bLength; */ |
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USB_DT_DEVICE, /* u8 bDescriptorType; Device */
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0x10, 0x01, /* u16 bcdUSB; v1.1 */ |
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|
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0x00, /* u8 bDeviceClass; */ |
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0x00, /* u8 bDeviceSubClass; */ |
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0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ |
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0x40, /* u8 bMaxPacketSize0; 8 Bytes (valid: 8,16,32,64) */ |
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|
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/* Vendor and product id are arbitrary. */
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/* u16 idVendor */
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CCID_VENDOR_ID & 0xff, CCID_VENDOR_ID >> 8, |
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/* u16 idProduct */
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CCID_PRODUCT_ID & 0xff, CCID_PRODUCT_ID >> 8, |
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/* u16 bcdDevice */
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CCID_DEVICE_VERSION & 0xff, CCID_DEVICE_VERSION >> 8, |
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0x01, /* u8 iManufacturer; */ |
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0x02, /* u8 iProduct; */ |
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0x03, /* u8 iSerialNumber; */ |
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0x01, /* u8 bNumConfigurations; */ |
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}; |
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|
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static const uint8_t qemu_ccid_config_descriptor[] = { |
| 332 |
|
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/* one configuration */
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0x09, /* u8 bLength; */ |
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USB_DT_CONFIG, /* u8 bDescriptorType; Configuration */
|
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0x5d, 0x00, /* u16 wTotalLength; 9+9+54+7+7+7 */ |
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0x01, /* u8 bNumInterfaces; (1) */ |
| 338 |
0x01, /* u8 bConfigurationValue; */ |
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0x00, /* u8 iConfiguration; */ |
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0xe0, /* u8 bmAttributes; |
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
|
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100/2, /* u8 MaxPower; 50 == 100mA */ |
| 346 |
|
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/* one interface */
|
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0x09, /* u8 if_bLength; */ |
| 349 |
USB_DT_INTERFACE, /* u8 if_bDescriptorType; Interface */
|
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0x00, /* u8 if_bInterfaceNumber; */ |
| 351 |
0x00, /* u8 if_bAlternateSetting; */ |
| 352 |
0x03, /* u8 if_bNumEndpoints; */ |
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0x0b, /* u8 if_bInterfaceClass; Smart Card Device Class */ |
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0x00, /* u8 if_bInterfaceSubClass; Subclass code */ |
| 355 |
0x00, /* u8 if_bInterfaceProtocol; Protocol code */ |
| 356 |
0x04, /* u8 if_iInterface; Index of string descriptor */ |
| 357 |
|
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/* Smart Card Device Class Descriptor */
|
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0x36, /* u8 bLength; */ |
| 360 |
0x21, /* u8 bDescriptorType; Functional */ |
| 361 |
0x10, 0x01, /* u16 bcdCCID; CCID Specification Release Number. */ |
| 362 |
0x00, /* |
| 363 |
* u8 bMaxSlotIndex; The index of the highest available
|
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* slot on this device. All slots are consecutive starting
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* at 00h.
|
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*/
|
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0x07, /* u8 bVoltageSupport; 01h - 5.0v, 02h - 3.0, 03 - 1.8 */ |
| 368 |
|
| 369 |
0x03, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/ |
| 370 |
0x00, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */ |
| 371 |
/* u32 dwDefaultClock; in kHZ (0x0fa0 is 4 MHz) */
|
| 372 |
0xa0, 0x0f, 0x00, 0x00, |
| 373 |
/* u32 dwMaximumClock; */
|
| 374 |
0x00, 0x00, 0x01, 0x00, |
| 375 |
0x00, /* u8 bNumClockSupported; * |
| 376 |
* 0 means just the default and max. */
|
| 377 |
/* u32 dwDataRate ;bps. 9600 == 00002580h */
|
| 378 |
0x80, 0x25, 0x00, 0x00, |
| 379 |
/* u32 dwMaxDataRate ; 11520 bps == 0001C200h */
|
| 380 |
0x00, 0xC2, 0x01, 0x00, |
| 381 |
0x00, /* u8 bNumDataRatesSupported; 00 means all rates between |
| 382 |
* default and max */
|
| 383 |
/* u32 dwMaxIFSD; *
|
| 384 |
* maximum IFSD supported by CCID for protocol *
|
| 385 |
* T=1 (Maximum seen from various cards) */
|
| 386 |
0xfe, 0x00, 0x00, 0x00, |
| 387 |
/* u32 dwSyncProtocols; 1 - 2-wire, 2 - 3-wire, 4 - I2C */
|
| 388 |
0x00, 0x00, 0x00, 0x00, |
| 389 |
/* u32 dwMechanical; 0 - no special characteristics. */
|
| 390 |
0x00, 0x00, 0x00, 0x00, |
| 391 |
/*
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| 392 |
* u32 dwFeatures;
|
| 393 |
* 0 - No special characteristics
|
| 394 |
* + 2 Automatic parameter configuration based on ATR data
|
| 395 |
* + 4 Automatic activation of ICC on inserting
|
| 396 |
* + 8 Automatic ICC voltage selection
|
| 397 |
* + 10 Automatic ICC clock frequency change
|
| 398 |
* + 20 Automatic baud rate change
|
| 399 |
* + 40 Automatic parameters negotiation made by the CCID
|
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* + 80 automatic PPS made by the CCID
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* 100 CCID can set ICC in clock stop mode
|
| 402 |
* 200 NAD value other then 00 accepted (T=1 protocol)
|
| 403 |
* + 400 Automatic IFSD exchange as first exchange (T=1)
|
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* One of the following only:
|
| 405 |
* + 10000 TPDU level exchanges with CCID
|
| 406 |
* 20000 Short APDU level exchange with CCID
|
| 407 |
* 40000 Short and Extended APDU level exchange with CCID
|
| 408 |
*
|
| 409 |
* + 100000 USB Wake up signaling supported on card
|
| 410 |
* insertion and removal. Must set bit 5 in bmAttributes
|
| 411 |
* in Configuration descriptor if 100000 is set.
|
| 412 |
*/
|
| 413 |
0xfe, 0x04, 0x11, 0x00, |
| 414 |
/*
|
| 415 |
* u32 dwMaxCCIDMessageLength; For extended APDU in
|
| 416 |
* [261 + 10 , 65544 + 10]. Otherwise the minimum is
|
| 417 |
* wMaxPacketSize of the Bulk-OUT endpoint
|
| 418 |
*/
|
| 419 |
0x12, 0x00, 0x01, 0x00, |
| 420 |
0xFF, /* |
| 421 |
* u8 bClassGetResponse; Significant only for CCID that
|
| 422 |
* offers an APDU level for exchanges. Indicates the
|
| 423 |
* default class value used by the CCID when it sends a
|
| 424 |
* Get Response command to perform the transportation of
|
| 425 |
* an APDU by T=0 protocol
|
| 426 |
* FFh indicates that the CCID echos the class of the APDU.
|
| 427 |
*/
|
| 428 |
0xFF, /* |
| 429 |
* u8 bClassEnvelope; EAPDU only. Envelope command for
|
| 430 |
* T=0
|
| 431 |
*/
|
| 432 |
0x00, 0x00, /* |
| 433 |
* u16 wLcdLayout; XXYY Number of lines (XX) and chars per
|
| 434 |
* line for LCD display used for PIN entry. 0000 - no LCD
|
| 435 |
*/
|
| 436 |
0x01, /* |
| 437 |
* u8 bPINSupport; 01h PIN Verification,
|
| 438 |
* 02h PIN Modification
|
| 439 |
*/
|
| 440 |
0x01, /* u8 bMaxCCIDBusySlots; */ |
| 441 |
|
| 442 |
/* Interrupt-IN endpoint */
|
| 443 |
0x07, /* u8 ep_bLength; */ |
| 444 |
/* u8 ep_bDescriptorType; Endpoint */
|
| 445 |
USB_DT_ENDPOINT, |
| 446 |
/* u8 ep_bEndpointAddress; IN Endpoint 1 */
|
| 447 |
0x80 | CCID_INT_IN_EP,
|
| 448 |
0x03, /* u8 ep_bmAttributes; Interrupt */ |
| 449 |
/* u16 ep_wMaxPacketSize; */
|
| 450 |
CCID_MAX_PACKET_SIZE & 0xff, (CCID_MAX_PACKET_SIZE >> 8), |
| 451 |
0xff, /* u8 ep_bInterval; */ |
| 452 |
|
| 453 |
/* Bulk-In endpoint */
|
| 454 |
0x07, /* u8 ep_bLength; */ |
| 455 |
/* u8 ep_bDescriptorType; Endpoint */
|
| 456 |
USB_DT_ENDPOINT, |
| 457 |
/* u8 ep_bEndpointAddress; IN Endpoint 2 */
|
| 458 |
0x80 | CCID_BULK_IN_EP,
|
| 459 |
0x02, /* u8 ep_bmAttributes; Bulk */ |
| 460 |
0x40, 0x00, /* u16 ep_wMaxPacketSize; */ |
| 461 |
0x00, /* u8 ep_bInterval; */ |
| 462 |
|
| 463 |
/* Bulk-Out endpoint */
|
| 464 |
0x07, /* u8 ep_bLength; */ |
| 465 |
/* u8 ep_bDescriptorType; Endpoint */
|
| 466 |
USB_DT_ENDPOINT, |
| 467 |
/* u8 ep_bEndpointAddress; OUT Endpoint 3 */
|
| 468 |
CCID_BULK_OUT_EP, |
| 469 |
0x02, /* u8 ep_bmAttributes; Bulk */ |
| 470 |
0x40, 0x00, /* u16 ep_wMaxPacketSize; */ |
| 471 |
0x00, /* u8 ep_bInterval; */ |
| 472 |
|
| 473 |
}; |
| 474 |
|
| 475 |
static bool ccid_has_pending_answers(USBCCIDState *s) |
| 476 |
{
|
| 477 |
return s->pending_answers_num > 0; |
| 478 |
} |
| 479 |
|
| 480 |
static void ccid_clear_pending_answers(USBCCIDState *s) |
| 481 |
{
|
| 482 |
s->pending_answers_num = 0;
|
| 483 |
s->pending_answers_start = 0;
|
| 484 |
s->pending_answers_end = 0;
|
| 485 |
} |
| 486 |
|
| 487 |
static void ccid_print_pending_answers(USBCCIDState *s) |
| 488 |
{
|
| 489 |
Answer *answer; |
| 490 |
int i, count;
|
| 491 |
|
| 492 |
DPRINTF(s, D_VERBOSE, "usb-ccid: pending answers:");
|
| 493 |
if (!ccid_has_pending_answers(s)) {
|
| 494 |
DPRINTF(s, D_VERBOSE, " empty\n");
|
| 495 |
return;
|
| 496 |
} |
| 497 |
for (i = s->pending_answers_start, count = s->pending_answers_num ;
|
| 498 |
count > 0; count--, i++) {
|
| 499 |
answer = &s->pending_answers[i % PENDING_ANSWERS_NUM]; |
| 500 |
if (count == 1) { |
| 501 |
DPRINTF(s, D_VERBOSE, "%d:%d\n", answer->slot, answer->seq);
|
| 502 |
} else {
|
| 503 |
DPRINTF(s, D_VERBOSE, "%d:%d,", answer->slot, answer->seq);
|
| 504 |
} |
| 505 |
} |
| 506 |
} |
| 507 |
|
| 508 |
static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr) |
| 509 |
{
|
| 510 |
Answer *answer; |
| 511 |
|
| 512 |
assert(s->pending_answers_num < PENDING_ANSWERS_NUM); |
| 513 |
s->pending_answers_num++; |
| 514 |
answer = |
| 515 |
&s->pending_answers[(s->pending_answers_end++) % PENDING_ANSWERS_NUM]; |
| 516 |
answer->slot = hdr->bSlot; |
| 517 |
answer->seq = hdr->bSeq; |
| 518 |
ccid_print_pending_answers(s); |
| 519 |
} |
| 520 |
|
| 521 |
static void ccid_remove_pending_answer(USBCCIDState *s, |
| 522 |
uint8_t *slot, uint8_t *seq) |
| 523 |
{
|
| 524 |
Answer *answer; |
| 525 |
|
| 526 |
assert(s->pending_answers_num > 0);
|
| 527 |
s->pending_answers_num--; |
| 528 |
answer = |
| 529 |
&s->pending_answers[(s->pending_answers_start++) % PENDING_ANSWERS_NUM]; |
| 530 |
*slot = answer->slot; |
| 531 |
*seq = answer->seq; |
| 532 |
ccid_print_pending_answers(s); |
| 533 |
} |
| 534 |
|
| 535 |
static void ccid_bulk_in_clear(USBCCIDState *s) |
| 536 |
{
|
| 537 |
s->bulk_in_pending_start = 0;
|
| 538 |
s->bulk_in_pending_end = 0;
|
| 539 |
s->bulk_in_pending_num = 0;
|
| 540 |
} |
| 541 |
|
| 542 |
static void ccid_bulk_in_release(USBCCIDState *s) |
| 543 |
{
|
| 544 |
assert(s->current_bulk_in != NULL);
|
| 545 |
s->current_bulk_in->pos = 0;
|
| 546 |
s->current_bulk_in = NULL;
|
| 547 |
} |
| 548 |
|
| 549 |
static void ccid_bulk_in_get(USBCCIDState *s) |
| 550 |
{
|
| 551 |
if (s->current_bulk_in != NULL || s->bulk_in_pending_num == 0) { |
| 552 |
return;
|
| 553 |
} |
| 554 |
assert(s->bulk_in_pending_num > 0);
|
| 555 |
s->bulk_in_pending_num--; |
| 556 |
s->current_bulk_in = |
| 557 |
&s->bulk_in_pending[(s->bulk_in_pending_start++) % BULK_IN_PENDING_NUM]; |
| 558 |
} |
| 559 |
|
| 560 |
static void *ccid_reserve_recv_buf(USBCCIDState *s, uint16_t len) |
| 561 |
{
|
| 562 |
BulkIn *bulk_in; |
| 563 |
|
| 564 |
DPRINTF(s, D_VERBOSE, "%s: QUEUE: reserve %d bytes\n", __func__, len);
|
| 565 |
|
| 566 |
/* look for an existing element */
|
| 567 |
if (len > BULK_IN_BUF_SIZE) {
|
| 568 |
DPRINTF(s, D_WARN, "usb-ccid.c: %s: len larger then max (%d>%d). "
|
| 569 |
"discarding message.\n",
|
| 570 |
__func__, len, BULK_IN_BUF_SIZE); |
| 571 |
return NULL; |
| 572 |
} |
| 573 |
if (s->bulk_in_pending_num >= BULK_IN_PENDING_NUM) {
|
| 574 |
DPRINTF(s, D_WARN, "usb-ccid.c: %s: No free bulk_in buffers. "
|
| 575 |
"discarding message.\n", __func__);
|
| 576 |
return NULL; |
| 577 |
} |
| 578 |
bulk_in = |
| 579 |
&s->bulk_in_pending[(s->bulk_in_pending_end++) % BULK_IN_PENDING_NUM]; |
| 580 |
s->bulk_in_pending_num++; |
| 581 |
bulk_in->len = len; |
| 582 |
return bulk_in->data;
|
| 583 |
} |
| 584 |
|
| 585 |
static void ccid_reset(USBCCIDState *s) |
| 586 |
{
|
| 587 |
ccid_bulk_in_clear(s); |
| 588 |
ccid_clear_pending_answers(s); |
| 589 |
} |
| 590 |
|
| 591 |
static void ccid_detach(USBCCIDState *s) |
| 592 |
{
|
| 593 |
ccid_reset(s); |
| 594 |
} |
| 595 |
|
| 596 |
static void ccid_handle_reset(USBDevice *dev) |
| 597 |
{
|
| 598 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
| 599 |
|
| 600 |
DPRINTF(s, 1, "Reset\n"); |
| 601 |
|
| 602 |
ccid_reset(s); |
| 603 |
} |
| 604 |
|
| 605 |
static int ccid_handle_control(USBDevice *dev, int request, int value, |
| 606 |
int index, int length, uint8_t *data) |
| 607 |
{
|
| 608 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
| 609 |
int ret = 0; |
| 610 |
|
| 611 |
DPRINTF(s, 1, "got control %x, value %x\n", request, value); |
| 612 |
switch (request) {
|
| 613 |
case DeviceRequest | USB_REQ_GET_STATUS:
|
| 614 |
data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
| 615 |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
| 616 |
data[1] = 0x00; |
| 617 |
ret = 2;
|
| 618 |
break;
|
| 619 |
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
|
| 620 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
| 621 |
dev->remote_wakeup = 0;
|
| 622 |
} else {
|
| 623 |
goto fail;
|
| 624 |
} |
| 625 |
ret = 0;
|
| 626 |
break;
|
| 627 |
case DeviceOutRequest | USB_REQ_SET_FEATURE:
|
| 628 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
| 629 |
dev->remote_wakeup = 1;
|
| 630 |
} else {
|
| 631 |
goto fail;
|
| 632 |
} |
| 633 |
ret = 0;
|
| 634 |
break;
|
| 635 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
| 636 |
dev->addr = value; |
| 637 |
ret = 0;
|
| 638 |
break;
|
| 639 |
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
|
| 640 |
switch (value >> 8) { |
| 641 |
case USB_DT_DEVICE:
|
| 642 |
memcpy(data, qemu_ccid_dev_descriptor, |
| 643 |
sizeof(qemu_ccid_dev_descriptor));
|
| 644 |
ret = sizeof(qemu_ccid_dev_descriptor);
|
| 645 |
break;
|
| 646 |
case USB_DT_CONFIG:
|
| 647 |
memcpy(data, qemu_ccid_config_descriptor, |
| 648 |
sizeof(qemu_ccid_config_descriptor));
|
| 649 |
ret = sizeof(qemu_ccid_config_descriptor);
|
| 650 |
break;
|
| 651 |
case USB_DT_STRING:
|
| 652 |
switch (value & 0xff) { |
| 653 |
case 0: |
| 654 |
/* language ids */
|
| 655 |
data[0] = 4; |
| 656 |
data[1] = 3; |
| 657 |
data[2] = 0x09; |
| 658 |
data[3] = 0x04; |
| 659 |
ret = 4;
|
| 660 |
break;
|
| 661 |
case 1: |
| 662 |
/* vendor description */
|
| 663 |
ret = set_usb_string(data, CCID_VENDOR_DESCRIPTION); |
| 664 |
break;
|
| 665 |
case 2: |
| 666 |
/* product description */
|
| 667 |
ret = set_usb_string(data, CCID_PRODUCT_DESCRIPTION); |
| 668 |
break;
|
| 669 |
case 3: |
| 670 |
/* serial number */
|
| 671 |
ret = set_usb_string(data, CCID_SERIAL_NUMBER_STRING); |
| 672 |
break;
|
| 673 |
case 4: |
| 674 |
/* interface name */
|
| 675 |
ret = set_usb_string(data, CCID_INTERFACE_NAME); |
| 676 |
break;
|
| 677 |
default:
|
| 678 |
goto fail;
|
| 679 |
} |
| 680 |
break;
|
| 681 |
default:
|
| 682 |
goto fail;
|
| 683 |
} |
| 684 |
break;
|
| 685 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
| 686 |
data[0] = 1; |
| 687 |
ret = 1;
|
| 688 |
break;
|
| 689 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
| 690 |
/* Only one configuration - we just ignore the request */
|
| 691 |
ret = 0;
|
| 692 |
break;
|
| 693 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
| 694 |
data[0] = 0; |
| 695 |
ret = 1;
|
| 696 |
break;
|
| 697 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
| 698 |
ret = 0;
|
| 699 |
break;
|
| 700 |
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
|
| 701 |
ret = 0;
|
| 702 |
break;
|
| 703 |
|
| 704 |
/* Class specific requests. */
|
| 705 |
case InterfaceOutClass | CCID_CONTROL_ABORT:
|
| 706 |
DPRINTF(s, 1, "ccid_control abort UNIMPLEMENTED\n"); |
| 707 |
ret = USB_RET_STALL; |
| 708 |
break;
|
| 709 |
case InterfaceInClass | CCID_CONTROL_GET_CLOCK_FREQUENCIES:
|
| 710 |
DPRINTF(s, 1, "ccid_control get clock frequencies UNIMPLEMENTED\n"); |
| 711 |
ret = USB_RET_STALL; |
| 712 |
break;
|
| 713 |
case InterfaceInClass | CCID_CONTROL_GET_DATA_RATES:
|
| 714 |
DPRINTF(s, 1, "ccid_control get data rates UNIMPLEMENTED\n"); |
| 715 |
ret = USB_RET_STALL; |
| 716 |
break;
|
| 717 |
default:
|
| 718 |
fail:
|
| 719 |
DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n", |
| 720 |
request, value); |
| 721 |
ret = USB_RET_STALL; |
| 722 |
break;
|
| 723 |
} |
| 724 |
return ret;
|
| 725 |
} |
| 726 |
|
| 727 |
static bool ccid_card_inserted(USBCCIDState *s) |
| 728 |
{
|
| 729 |
return s->bmSlotICCState & SLOT_0_STATE_MASK;
|
| 730 |
} |
| 731 |
|
| 732 |
static uint8_t ccid_card_status(USBCCIDState *s)
|
| 733 |
{
|
| 734 |
return ccid_card_inserted(s)
|
| 735 |
? (s->powered ? |
| 736 |
ICC_STATUS_PRESENT_ACTIVE |
| 737 |
: ICC_STATUS_PRESENT_INACTIVE |
| 738 |
) |
| 739 |
: ICC_STATUS_NOT_PRESENT; |
| 740 |
} |
| 741 |
|
| 742 |
static uint8_t ccid_calc_status(USBCCIDState *s)
|
| 743 |
{
|
| 744 |
/*
|
| 745 |
* page 55, 6.2.6, calculation of bStatus from bmICCStatus and
|
| 746 |
* bmCommandStatus
|
| 747 |
*/
|
| 748 |
uint8_t ret = ccid_card_status(s) | (s->bmCommandStatus << 6);
|
| 749 |
DPRINTF(s, D_VERBOSE, "status = %d\n", ret);
|
| 750 |
return ret;
|
| 751 |
} |
| 752 |
|
| 753 |
static void ccid_reset_error_status(USBCCIDState *s) |
| 754 |
{
|
| 755 |
s->bError = ERROR_CMD_NOT_SUPPORTED; |
| 756 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
| 757 |
} |
| 758 |
|
| 759 |
static void ccid_write_slot_status(USBCCIDState *s, CCID_Header *recv) |
| 760 |
{
|
| 761 |
CCID_SlotStatus *h = ccid_reserve_recv_buf(s, sizeof(CCID_SlotStatus));
|
| 762 |
if (h == NULL) { |
| 763 |
return;
|
| 764 |
} |
| 765 |
h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus; |
| 766 |
h->b.hdr.dwLength = 0;
|
| 767 |
h->b.hdr.bSlot = recv->bSlot; |
| 768 |
h->b.hdr.bSeq = recv->bSeq; |
| 769 |
h->b.bStatus = ccid_calc_status(s); |
| 770 |
h->b.bError = s->bError; |
| 771 |
h->bClockStatus = CLOCK_STATUS_RUNNING; |
| 772 |
ccid_reset_error_status(s); |
| 773 |
} |
| 774 |
|
| 775 |
static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv) |
| 776 |
{
|
| 777 |
CCID_Parameter *h; |
| 778 |
uint32_t len = s->ulProtocolDataStructureSize; |
| 779 |
|
| 780 |
h = ccid_reserve_recv_buf(s, sizeof(CCID_Parameter) + len);
|
| 781 |
if (h == NULL) { |
| 782 |
return;
|
| 783 |
} |
| 784 |
h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_Parameters; |
| 785 |
h->b.hdr.dwLength = 0;
|
| 786 |
h->b.hdr.bSlot = recv->bSlot; |
| 787 |
h->b.hdr.bSeq = recv->bSeq; |
| 788 |
h->b.bStatus = ccid_calc_status(s); |
| 789 |
h->b.bError = s->bError; |
| 790 |
h->bProtocolNum = s->bProtocolNum; |
| 791 |
memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len); |
| 792 |
ccid_reset_error_status(s); |
| 793 |
} |
| 794 |
|
| 795 |
static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq, |
| 796 |
const uint8_t *data, uint32_t len)
|
| 797 |
{
|
| 798 |
CCID_DataBlock *p = ccid_reserve_recv_buf(s, sizeof(*p) + len);
|
| 799 |
|
| 800 |
if (p == NULL) { |
| 801 |
return;
|
| 802 |
} |
| 803 |
p->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock; |
| 804 |
p->b.hdr.dwLength = cpu_to_le32(len); |
| 805 |
p->b.hdr.bSlot = slot; |
| 806 |
p->b.hdr.bSeq = seq; |
| 807 |
p->b.bStatus = ccid_calc_status(s); |
| 808 |
p->b.bError = s->bError; |
| 809 |
if (p->b.bError) {
|
| 810 |
DPRINTF(s, D_VERBOSE, "error %d", p->b.bError);
|
| 811 |
} |
| 812 |
memcpy(p->abData, data, len); |
| 813 |
ccid_reset_error_status(s); |
| 814 |
} |
| 815 |
|
| 816 |
static void ccid_write_data_block_answer(USBCCIDState *s, |
| 817 |
const uint8_t *data, uint32_t len)
|
| 818 |
{
|
| 819 |
uint8_t seq; |
| 820 |
uint8_t slot; |
| 821 |
|
| 822 |
if (!ccid_has_pending_answers(s)) {
|
| 823 |
abort(); |
| 824 |
} |
| 825 |
ccid_remove_pending_answer(s, &slot, &seq); |
| 826 |
ccid_write_data_block(s, slot, seq, data, len); |
| 827 |
} |
| 828 |
|
| 829 |
static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv) |
| 830 |
{
|
| 831 |
const uint8_t *atr = NULL; |
| 832 |
uint32_t len = 0;
|
| 833 |
|
| 834 |
if (s->card) {
|
| 835 |
atr = s->cardinfo->get_atr(s->card, &len); |
| 836 |
} |
| 837 |
ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len); |
| 838 |
} |
| 839 |
|
| 840 |
static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv) |
| 841 |
{
|
| 842 |
CCID_SetParameters *ph = (CCID_SetParameters *) recv; |
| 843 |
uint32_t len = 0;
|
| 844 |
if ((ph->bProtocolNum & 3) == 0) { |
| 845 |
len = 5;
|
| 846 |
} |
| 847 |
if ((ph->bProtocolNum & 3) == 1) { |
| 848 |
len = 7;
|
| 849 |
} |
| 850 |
if (len == 0) { |
| 851 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
| 852 |
s->bError = 7; /* Protocol invalid or not supported */ |
| 853 |
return;
|
| 854 |
} |
| 855 |
s->bProtocolNum = ph->bProtocolNum; |
| 856 |
memcpy(s->abProtocolDataStructure, ph->abProtocolDataStructure, len); |
| 857 |
s->ulProtocolDataStructureSize = len; |
| 858 |
DPRINTF(s, 1, "%s: using len %d\n", __func__, len); |
| 859 |
} |
| 860 |
|
| 861 |
/*
|
| 862 |
* must be 5 bytes for T=0, 7 bytes for T=1
|
| 863 |
* See page 52
|
| 864 |
*/
|
| 865 |
static const uint8_t abDefaultProtocolDataStructure[7] = { |
| 866 |
0x77, 0x00, 0x00, 0x00, 0x00, 0xfe /*IFSC*/, 0x00 /*NAD*/ }; |
| 867 |
|
| 868 |
static void ccid_reset_parameters(USBCCIDState *s) |
| 869 |
{
|
| 870 |
uint32_t len = sizeof(abDefaultProtocolDataStructure);
|
| 871 |
|
| 872 |
s->bProtocolNum = 1; /* T=1 */ |
| 873 |
s->ulProtocolDataStructureSize = len; |
| 874 |
memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len); |
| 875 |
} |
| 876 |
|
| 877 |
static void ccid_report_error_failed(USBCCIDState *s, uint8_t error) |
| 878 |
{
|
| 879 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
| 880 |
s->bError = error; |
| 881 |
} |
| 882 |
|
| 883 |
/* NOTE: only a single slot is supported (SLOT_0) */
|
| 884 |
static void ccid_on_slot_change(USBCCIDState *s, bool full) |
| 885 |
{
|
| 886 |
/* RDR_to_PC_NotifySlotChange, 6.3.1 page 56 */
|
| 887 |
uint8_t current = s->bmSlotICCState; |
| 888 |
if (full) {
|
| 889 |
s->bmSlotICCState |= SLOT_0_STATE_MASK; |
| 890 |
} else {
|
| 891 |
s->bmSlotICCState &= ~SLOT_0_STATE_MASK; |
| 892 |
} |
| 893 |
if (current != s->bmSlotICCState) {
|
| 894 |
s->bmSlotICCState |= SLOT_0_CHANGED_MASK; |
| 895 |
} |
| 896 |
s->notify_slot_change = true;
|
| 897 |
} |
| 898 |
|
| 899 |
static void ccid_write_data_block_error( |
| 900 |
USBCCIDState *s, uint8_t slot, uint8_t seq) |
| 901 |
{
|
| 902 |
ccid_write_data_block(s, slot, seq, NULL, 0); |
| 903 |
} |
| 904 |
|
| 905 |
static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv) |
| 906 |
{
|
| 907 |
uint32_t len; |
| 908 |
|
| 909 |
if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) {
|
| 910 |
DPRINTF(s, 1,
|
| 911 |
"usb-ccid: not sending apdu to client, no card connected\n");
|
| 912 |
ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq); |
| 913 |
return;
|
| 914 |
} |
| 915 |
len = le32_to_cpu(recv->hdr.dwLength); |
| 916 |
DPRINTF(s, 1, "%s: seq %d, len %d\n", __func__, |
| 917 |
recv->hdr.bSeq, len); |
| 918 |
ccid_add_pending_answer(s, (CCID_Header *)recv); |
| 919 |
if (s->card) {
|
| 920 |
s->cardinfo->apdu_from_guest(s->card, recv->abData, len); |
| 921 |
} else {
|
| 922 |
DPRINTF(s, D_WARN, "warning: discarded apdu\n");
|
| 923 |
} |
| 924 |
} |
| 925 |
|
| 926 |
/*
|
| 927 |
* Handle a single USB_TOKEN_OUT, return value returned to guest.
|
| 928 |
* Return value:
|
| 929 |
* 0 - all ok
|
| 930 |
* USB_RET_STALL - failed to handle packet
|
| 931 |
*/
|
| 932 |
static int ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p) |
| 933 |
{
|
| 934 |
CCID_Header *ccid_header; |
| 935 |
|
| 936 |
if (p->len + s->bulk_out_pos > BULK_OUT_DATA_SIZE) {
|
| 937 |
return USB_RET_STALL;
|
| 938 |
} |
| 939 |
ccid_header = (CCID_Header *)s->bulk_out_data; |
| 940 |
memcpy(s->bulk_out_data + s->bulk_out_pos, p->data, p->len); |
| 941 |
s->bulk_out_pos += p->len; |
| 942 |
if (p->len == CCID_MAX_PACKET_SIZE) {
|
| 943 |
DPRINTF(s, D_VERBOSE, |
| 944 |
"usb-ccid: bulk_in: expecting more packets (%d/%d)\n",
|
| 945 |
p->len, ccid_header->dwLength); |
| 946 |
return 0; |
| 947 |
} |
| 948 |
if (s->bulk_out_pos < 10) { |
| 949 |
DPRINTF(s, 1,
|
| 950 |
"%s: bad USB_TOKEN_OUT length, should be at least 10 bytes\n",
|
| 951 |
__func__); |
| 952 |
} else {
|
| 953 |
DPRINTF(s, D_MORE_INFO, "%s %x\n", __func__, ccid_header->bMessageType);
|
| 954 |
switch (ccid_header->bMessageType) {
|
| 955 |
case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus:
|
| 956 |
ccid_write_slot_status(s, ccid_header); |
| 957 |
break;
|
| 958 |
case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn:
|
| 959 |
DPRINTF(s, 1, "PowerOn: %d\n", |
| 960 |
((CCID_IccPowerOn *)(ccid_header))->bPowerSelect); |
| 961 |
s->powered = true;
|
| 962 |
if (!ccid_card_inserted(s)) {
|
| 963 |
ccid_report_error_failed(s, ERROR_ICC_MUTE); |
| 964 |
} |
| 965 |
/* atr is written regardless of error. */
|
| 966 |
ccid_write_data_block_atr(s, ccid_header); |
| 967 |
break;
|
| 968 |
case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff:
|
| 969 |
DPRINTF(s, 1, "PowerOff\n"); |
| 970 |
ccid_reset_error_status(s); |
| 971 |
s->powered = false;
|
| 972 |
ccid_write_slot_status(s, ccid_header); |
| 973 |
break;
|
| 974 |
case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock:
|
| 975 |
ccid_on_apdu_from_guest(s, (CCID_XferBlock *)s->bulk_out_data); |
| 976 |
break;
|
| 977 |
case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters:
|
| 978 |
ccid_reset_error_status(s); |
| 979 |
ccid_set_parameters(s, ccid_header); |
| 980 |
ccid_write_parameters(s, ccid_header); |
| 981 |
break;
|
| 982 |
case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters:
|
| 983 |
ccid_reset_error_status(s); |
| 984 |
ccid_reset_parameters(s); |
| 985 |
ccid_write_parameters(s, ccid_header); |
| 986 |
break;
|
| 987 |
case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters:
|
| 988 |
ccid_reset_error_status(s); |
| 989 |
ccid_write_parameters(s, ccid_header); |
| 990 |
break;
|
| 991 |
default:
|
| 992 |
DPRINTF(s, 1,
|
| 993 |
"handle_data: ERROR: unhandled message type %Xh\n",
|
| 994 |
ccid_header->bMessageType); |
| 995 |
/*
|
| 996 |
* The caller is expecting the device to respond, tell it we
|
| 997 |
* don't support the operation.
|
| 998 |
*/
|
| 999 |
ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED); |
| 1000 |
ccid_write_slot_status(s, ccid_header); |
| 1001 |
break;
|
| 1002 |
} |
| 1003 |
} |
| 1004 |
s->bulk_out_pos = 0;
|
| 1005 |
return 0; |
| 1006 |
} |
| 1007 |
|
| 1008 |
static int ccid_bulk_in_copy_to_guest(USBCCIDState *s, uint8_t *data, int len) |
| 1009 |
{
|
| 1010 |
int ret = 0; |
| 1011 |
|
| 1012 |
assert(len > 0);
|
| 1013 |
ccid_bulk_in_get(s); |
| 1014 |
if (s->current_bulk_in != NULL) { |
| 1015 |
ret = MIN(s->current_bulk_in->len - s->current_bulk_in->pos, len); |
| 1016 |
memcpy(data, s->current_bulk_in->data + s->current_bulk_in->pos, ret); |
| 1017 |
s->current_bulk_in->pos += ret; |
| 1018 |
if (s->current_bulk_in->pos == s->current_bulk_in->len) {
|
| 1019 |
ccid_bulk_in_release(s); |
| 1020 |
} |
| 1021 |
} else {
|
| 1022 |
/* return when device has no data - usb 2.0 spec Table 8-4 */
|
| 1023 |
ret = USB_RET_NAK; |
| 1024 |
} |
| 1025 |
if (ret > 0) { |
| 1026 |
DPRINTF(s, D_MORE_INFO, |
| 1027 |
"%s: %d/%d req/act to guest (BULK_IN)\n", __func__, len, ret);
|
| 1028 |
} |
| 1029 |
if (ret != USB_RET_NAK && ret < len) {
|
| 1030 |
DPRINTF(s, 1,
|
| 1031 |
"%s: returning short (EREMOTEIO) %d < %d\n", __func__, ret, len);
|
| 1032 |
} |
| 1033 |
return ret;
|
| 1034 |
} |
| 1035 |
|
| 1036 |
static int ccid_handle_data(USBDevice *dev, USBPacket *p) |
| 1037 |
{
|
| 1038 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
| 1039 |
int ret = 0; |
| 1040 |
uint8_t *data = p->data; |
| 1041 |
int len = p->len;
|
| 1042 |
|
| 1043 |
switch (p->pid) {
|
| 1044 |
case USB_TOKEN_OUT:
|
| 1045 |
ret = ccid_handle_bulk_out(s, p); |
| 1046 |
break;
|
| 1047 |
|
| 1048 |
case USB_TOKEN_IN:
|
| 1049 |
switch (p->devep & 0xf) { |
| 1050 |
case CCID_BULK_IN_EP:
|
| 1051 |
if (!len) {
|
| 1052 |
ret = USB_RET_NAK; |
| 1053 |
} else {
|
| 1054 |
ret = ccid_bulk_in_copy_to_guest(s, data, len); |
| 1055 |
} |
| 1056 |
break;
|
| 1057 |
case CCID_INT_IN_EP:
|
| 1058 |
if (s->notify_slot_change) {
|
| 1059 |
/* page 56, RDR_to_PC_NotifySlotChange */
|
| 1060 |
data[0] = CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange;
|
| 1061 |
data[1] = s->bmSlotICCState;
|
| 1062 |
ret = 2;
|
| 1063 |
s->notify_slot_change = false;
|
| 1064 |
s->bmSlotICCState &= ~SLOT_0_CHANGED_MASK; |
| 1065 |
DPRINTF(s, D_INFO, |
| 1066 |
"handle_data: int_in: notify_slot_change %X, "
|
| 1067 |
"requested len %d\n",
|
| 1068 |
s->bmSlotICCState, len); |
| 1069 |
} |
| 1070 |
break;
|
| 1071 |
default:
|
| 1072 |
DPRINTF(s, 1, "Bad endpoint\n"); |
| 1073 |
break;
|
| 1074 |
} |
| 1075 |
break;
|
| 1076 |
default:
|
| 1077 |
DPRINTF(s, 1, "Bad token\n"); |
| 1078 |
ret = USB_RET_STALL; |
| 1079 |
break;
|
| 1080 |
} |
| 1081 |
|
| 1082 |
return ret;
|
| 1083 |
} |
| 1084 |
|
| 1085 |
static void ccid_handle_destroy(USBDevice *dev) |
| 1086 |
{
|
| 1087 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
| 1088 |
|
| 1089 |
ccid_bulk_in_clear(s); |
| 1090 |
} |
| 1091 |
|
| 1092 |
static void ccid_flush_pending_answers(USBCCIDState *s) |
| 1093 |
{
|
| 1094 |
while (ccid_has_pending_answers(s)) {
|
| 1095 |
ccid_write_data_block_answer(s, NULL, 0); |
| 1096 |
} |
| 1097 |
} |
| 1098 |
|
| 1099 |
static Answer *ccid_peek_next_answer(USBCCIDState *s)
|
| 1100 |
{
|
| 1101 |
return s->pending_answers_num == 0 |
| 1102 |
? NULL
|
| 1103 |
: &s->pending_answers[s->pending_answers_start % PENDING_ANSWERS_NUM]; |
| 1104 |
} |
| 1105 |
|
| 1106 |
static void ccid_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent) |
| 1107 |
{
|
| 1108 |
CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev); |
| 1109 |
CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, qdev->info); |
| 1110 |
|
| 1111 |
if (info->print) {
|
| 1112 |
info->print(mon, card, indent); |
| 1113 |
} |
| 1114 |
} |
| 1115 |
|
| 1116 |
struct CCIDBus {
|
| 1117 |
BusState qbus; |
| 1118 |
}; |
| 1119 |
|
| 1120 |
static struct BusInfo ccid_bus_info = { |
| 1121 |
.name = "ccid-bus",
|
| 1122 |
.size = sizeof(CCIDBus),
|
| 1123 |
.print_dev = ccid_bus_dev_print, |
| 1124 |
.props = (Property[]) {
|
| 1125 |
DEFINE_PROP_UINT32("slot", struct CCIDCardState, slot, 0), |
| 1126 |
DEFINE_PROP_END_OF_LIST(), |
| 1127 |
} |
| 1128 |
}; |
| 1129 |
|
| 1130 |
static CCIDBus *ccid_bus_new(DeviceState *dev)
|
| 1131 |
{
|
| 1132 |
CCIDBus *bus; |
| 1133 |
|
| 1134 |
bus = FROM_QBUS(CCIDBus, qbus_create(&ccid_bus_info, dev, NULL));
|
| 1135 |
bus->qbus.allow_hotplug = 1;
|
| 1136 |
|
| 1137 |
return bus;
|
| 1138 |
} |
| 1139 |
|
| 1140 |
void ccid_card_send_apdu_to_guest(CCIDCardState *card,
|
| 1141 |
uint8_t *apdu, uint32_t len) |
| 1142 |
{
|
| 1143 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev.qdev, |
| 1144 |
card->qdev.parent_bus->parent); |
| 1145 |
Answer *answer; |
| 1146 |
|
| 1147 |
if (!ccid_has_pending_answers(s)) {
|
| 1148 |
DPRINTF(s, 1, "CCID ERROR: got an APDU without pending answers\n"); |
| 1149 |
return;
|
| 1150 |
} |
| 1151 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
| 1152 |
answer = ccid_peek_next_answer(s); |
| 1153 |
if (answer == NULL) { |
| 1154 |
abort(); |
| 1155 |
} |
| 1156 |
DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n", |
| 1157 |
len, answer->seq, answer->slot); |
| 1158 |
ccid_write_data_block_answer(s, apdu, len); |
| 1159 |
} |
| 1160 |
|
| 1161 |
void ccid_card_card_removed(CCIDCardState *card)
|
| 1162 |
{
|
| 1163 |
USBCCIDState *s = |
| 1164 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1165 |
|
| 1166 |
ccid_on_slot_change(s, false);
|
| 1167 |
ccid_flush_pending_answers(s); |
| 1168 |
ccid_reset(s); |
| 1169 |
} |
| 1170 |
|
| 1171 |
int ccid_card_ccid_attach(CCIDCardState *card)
|
| 1172 |
{
|
| 1173 |
USBCCIDState *s = |
| 1174 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1175 |
|
| 1176 |
DPRINTF(s, 1, "CCID Attach\n"); |
| 1177 |
if (s->migration_state == MIGRATION_MIGRATED) {
|
| 1178 |
s->migration_state = MIGRATION_NONE; |
| 1179 |
} |
| 1180 |
return 0; |
| 1181 |
} |
| 1182 |
|
| 1183 |
void ccid_card_ccid_detach(CCIDCardState *card)
|
| 1184 |
{
|
| 1185 |
USBCCIDState *s = |
| 1186 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1187 |
|
| 1188 |
DPRINTF(s, 1, "CCID Detach\n"); |
| 1189 |
if (ccid_card_inserted(s)) {
|
| 1190 |
ccid_on_slot_change(s, false);
|
| 1191 |
} |
| 1192 |
ccid_detach(s); |
| 1193 |
} |
| 1194 |
|
| 1195 |
void ccid_card_card_error(CCIDCardState *card, uint64_t error)
|
| 1196 |
{
|
| 1197 |
USBCCIDState *s = |
| 1198 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1199 |
|
| 1200 |
s->bmCommandStatus = COMMAND_STATUS_FAILED; |
| 1201 |
s->last_answer_error = error; |
| 1202 |
DPRINTF(s, 1, "VSC_Error: %lX\n", s->last_answer_error); |
| 1203 |
/* TODO: these error's should be more verbose and propogated to the guest.*/
|
| 1204 |
/*
|
| 1205 |
* We flush all pending answers on CardRemove message in ccid-card-passthru,
|
| 1206 |
* so check that first to not trigger abort
|
| 1207 |
*/
|
| 1208 |
if (ccid_has_pending_answers(s)) {
|
| 1209 |
ccid_write_data_block_answer(s, NULL, 0); |
| 1210 |
} |
| 1211 |
} |
| 1212 |
|
| 1213 |
void ccid_card_card_inserted(CCIDCardState *card)
|
| 1214 |
{
|
| 1215 |
USBCCIDState *s = |
| 1216 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1217 |
|
| 1218 |
s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; |
| 1219 |
ccid_flush_pending_answers(s); |
| 1220 |
ccid_on_slot_change(s, true);
|
| 1221 |
} |
| 1222 |
|
| 1223 |
static int ccid_card_exit(DeviceState *qdev) |
| 1224 |
{
|
| 1225 |
int ret = 0; |
| 1226 |
CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev); |
| 1227 |
CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, qdev->info); |
| 1228 |
USBCCIDState *s = |
| 1229 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1230 |
|
| 1231 |
if (ccid_card_inserted(s)) {
|
| 1232 |
ccid_card_card_removed(card); |
| 1233 |
} |
| 1234 |
if (info->exitfn) {
|
| 1235 |
ret = info->exitfn(card); |
| 1236 |
} |
| 1237 |
s->card = NULL;
|
| 1238 |
s->cardinfo = NULL;
|
| 1239 |
return ret;
|
| 1240 |
} |
| 1241 |
|
| 1242 |
static int ccid_card_init(DeviceState *qdev, DeviceInfo *base) |
| 1243 |
{
|
| 1244 |
CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev); |
| 1245 |
CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, base); |
| 1246 |
USBCCIDState *s = |
| 1247 |
DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent); |
| 1248 |
int ret = 0; |
| 1249 |
|
| 1250 |
if (card->slot != 0) { |
| 1251 |
error_report("Warning: usb-ccid supports one slot, can't add %d",
|
| 1252 |
card->slot); |
| 1253 |
return -1; |
| 1254 |
} |
| 1255 |
if (s->card != NULL) { |
| 1256 |
error_report("Warning: usb-ccid card already full, not adding\n");
|
| 1257 |
return -1; |
| 1258 |
} |
| 1259 |
ret = info->initfn ? info->initfn(card) : ret; |
| 1260 |
if (ret == 0) { |
| 1261 |
s->card = card; |
| 1262 |
s->cardinfo = info; |
| 1263 |
} |
| 1264 |
return ret;
|
| 1265 |
} |
| 1266 |
|
| 1267 |
void ccid_card_qdev_register(CCIDCardInfo *card)
|
| 1268 |
{
|
| 1269 |
card->qdev.bus_info = &ccid_bus_info; |
| 1270 |
card->qdev.init = ccid_card_init; |
| 1271 |
card->qdev.exit = ccid_card_exit; |
| 1272 |
qdev_register(&card->qdev); |
| 1273 |
} |
| 1274 |
|
| 1275 |
static int ccid_initfn(USBDevice *dev) |
| 1276 |
{
|
| 1277 |
USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev); |
| 1278 |
|
| 1279 |
s->bus = ccid_bus_new(&dev->qdev); |
| 1280 |
s->card = NULL;
|
| 1281 |
s->cardinfo = NULL;
|
| 1282 |
s->migration_state = MIGRATION_NONE; |
| 1283 |
s->migration_target_ip = 0;
|
| 1284 |
s->migration_target_port = 0;
|
| 1285 |
s->dev.speed = USB_SPEED_FULL; |
| 1286 |
s->notify_slot_change = false;
|
| 1287 |
s->powered = true;
|
| 1288 |
s->pending_answers_num = 0;
|
| 1289 |
s->last_answer_error = 0;
|
| 1290 |
s->bulk_in_pending_start = 0;
|
| 1291 |
s->bulk_in_pending_end = 0;
|
| 1292 |
s->current_bulk_in = NULL;
|
| 1293 |
ccid_reset_error_status(s); |
| 1294 |
s->bulk_out_pos = 0;
|
| 1295 |
ccid_reset_parameters(s); |
| 1296 |
ccid_reset(s); |
| 1297 |
return 0; |
| 1298 |
} |
| 1299 |
|
| 1300 |
static int ccid_post_load(void *opaque, int version_id) |
| 1301 |
{
|
| 1302 |
USBCCIDState *s = opaque; |
| 1303 |
|
| 1304 |
/*
|
| 1305 |
* This must be done after usb_device_attach, which sets state to ATTACHED,
|
| 1306 |
* while it must be DEFAULT in order to accept packets (like it is after
|
| 1307 |
* reset, but reset will reset our addr and call our reset handler which
|
| 1308 |
* may change state, and we don't want to do that when migrating).
|
| 1309 |
*/
|
| 1310 |
s->dev.state = s->state_vmstate; |
| 1311 |
return 0; |
| 1312 |
} |
| 1313 |
|
| 1314 |
static void ccid_pre_save(void *opaque) |
| 1315 |
{
|
| 1316 |
USBCCIDState *s = opaque; |
| 1317 |
|
| 1318 |
s->state_vmstate = s->dev.state; |
| 1319 |
if (s->dev.attached) {
|
| 1320 |
/*
|
| 1321 |
* Migrating an open device, ignore reconnection CHR_EVENT to avoid an
|
| 1322 |
* erronous detach.
|
| 1323 |
*/
|
| 1324 |
s->migration_state = MIGRATION_MIGRATED; |
| 1325 |
} |
| 1326 |
} |
| 1327 |
|
| 1328 |
static VMStateDescription bulk_in_vmstate = {
|
| 1329 |
.name = "CCID BulkIn state",
|
| 1330 |
.version_id = 1,
|
| 1331 |
.minimum_version_id = 1,
|
| 1332 |
.fields = (VMStateField[]) {
|
| 1333 |
VMSTATE_BUFFER(data, BulkIn), |
| 1334 |
VMSTATE_UINT32(len, BulkIn), |
| 1335 |
VMSTATE_UINT32(pos, BulkIn), |
| 1336 |
VMSTATE_END_OF_LIST() |
| 1337 |
} |
| 1338 |
}; |
| 1339 |
|
| 1340 |
static VMStateDescription answer_vmstate = {
|
| 1341 |
.name = "CCID Answer state",
|
| 1342 |
.version_id = 1,
|
| 1343 |
.minimum_version_id = 1,
|
| 1344 |
.fields = (VMStateField[]) {
|
| 1345 |
VMSTATE_UINT8(slot, Answer), |
| 1346 |
VMSTATE_UINT8(seq, Answer), |
| 1347 |
VMSTATE_END_OF_LIST() |
| 1348 |
} |
| 1349 |
}; |
| 1350 |
|
| 1351 |
static VMStateDescription usb_device_vmstate = {
|
| 1352 |
.name = "usb_device",
|
| 1353 |
.version_id = 1,
|
| 1354 |
.minimum_version_id = 1,
|
| 1355 |
.fields = (VMStateField[]) {
|
| 1356 |
VMSTATE_UINT8(addr, USBDevice), |
| 1357 |
VMSTATE_BUFFER(setup_buf, USBDevice), |
| 1358 |
VMSTATE_BUFFER(data_buf, USBDevice), |
| 1359 |
VMSTATE_END_OF_LIST() |
| 1360 |
} |
| 1361 |
}; |
| 1362 |
|
| 1363 |
static VMStateDescription ccid_vmstate = {
|
| 1364 |
.name = CCID_DEV_NAME, |
| 1365 |
.version_id = 1,
|
| 1366 |
.minimum_version_id = 1,
|
| 1367 |
.post_load = ccid_post_load, |
| 1368 |
.pre_save = ccid_pre_save, |
| 1369 |
.fields = (VMStateField[]) {
|
| 1370 |
VMSTATE_STRUCT(dev, USBCCIDState, 1, usb_device_vmstate, USBDevice),
|
| 1371 |
VMSTATE_UINT8(debug, USBCCIDState), |
| 1372 |
VMSTATE_BUFFER(bulk_out_data, USBCCIDState), |
| 1373 |
VMSTATE_UINT32(bulk_out_pos, USBCCIDState), |
| 1374 |
VMSTATE_UINT8(bmSlotICCState, USBCCIDState), |
| 1375 |
VMSTATE_UINT8(powered, USBCCIDState), |
| 1376 |
VMSTATE_UINT8(notify_slot_change, USBCCIDState), |
| 1377 |
VMSTATE_UINT64(last_answer_error, USBCCIDState), |
| 1378 |
VMSTATE_UINT8(bError, USBCCIDState), |
| 1379 |
VMSTATE_UINT8(bmCommandStatus, USBCCIDState), |
| 1380 |
VMSTATE_UINT8(bProtocolNum, USBCCIDState), |
| 1381 |
VMSTATE_BUFFER(abProtocolDataStructure, USBCCIDState), |
| 1382 |
VMSTATE_UINT32(ulProtocolDataStructureSize, USBCCIDState), |
| 1383 |
VMSTATE_STRUCT_ARRAY(bulk_in_pending, USBCCIDState, |
| 1384 |
BULK_IN_PENDING_NUM, 1, bulk_in_vmstate, BulkIn),
|
| 1385 |
VMSTATE_UINT32(bulk_in_pending_start, USBCCIDState), |
| 1386 |
VMSTATE_UINT32(bulk_in_pending_end, USBCCIDState), |
| 1387 |
VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState, |
| 1388 |
PENDING_ANSWERS_NUM, 1, answer_vmstate, Answer),
|
| 1389 |
VMSTATE_UINT32(pending_answers_num, USBCCIDState), |
| 1390 |
VMSTATE_UINT8(migration_state, USBCCIDState), |
| 1391 |
VMSTATE_UINT32(state_vmstate, USBCCIDState), |
| 1392 |
VMSTATE_END_OF_LIST() |
| 1393 |
} |
| 1394 |
}; |
| 1395 |
|
| 1396 |
static struct USBDeviceInfo ccid_info = { |
| 1397 |
.product_desc = "QEMU USB CCID",
|
| 1398 |
.qdev.name = CCID_DEV_NAME, |
| 1399 |
.qdev.desc = "CCID Rev 1.1 smartcard reader",
|
| 1400 |
.qdev.size = sizeof(USBCCIDState),
|
| 1401 |
.init = ccid_initfn, |
| 1402 |
.handle_packet = usb_generic_handle_packet, |
| 1403 |
.handle_reset = ccid_handle_reset, |
| 1404 |
.handle_control = ccid_handle_control, |
| 1405 |
.handle_data = ccid_handle_data, |
| 1406 |
.handle_destroy = ccid_handle_destroy, |
| 1407 |
.usbdevice_name = "ccid",
|
| 1408 |
.qdev.props = (Property[]) {
|
| 1409 |
DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0), |
| 1410 |
DEFINE_PROP_END_OF_LIST(), |
| 1411 |
}, |
| 1412 |
.qdev.vmsd = &ccid_vmstate, |
| 1413 |
}; |
| 1414 |
|
| 1415 |
static void ccid_register_devices(void) |
| 1416 |
{
|
| 1417 |
usb_qdev_register(&ccid_info); |
| 1418 |
} |
| 1419 |
device_init(ccid_register_devices) |