From: Alon Levy <alevy@redhat.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 1/7] usb-ccid: add CCID bus
Date: Wed, 23 Feb 2011 13:20:18 +0200 [thread overview]
Message-ID: <1298460024-23591-2-git-send-email-alevy@redhat.com> (raw)
In-Reply-To: <1298460024-23591-1-git-send-email-alevy@redhat.com>
A CCID device is a smart card reader. It is a USB device, defined at [1].
This patch introduces the usb-ccid device that is a ccid bus. Next patches will
introduce two card types to use it, a passthru card and an emulated card.
[1] http://www.usb.org/developers/devclass_docs/DWG_Smart-Card_CCID_Rev110.
Signed-off-by: Alon Levy <alevy@redhat.com>
---
changes from v19->v20:
* checkpatch.pl
changes from v18->v19:
* merged: ccid.h: add copyright, fix define and remove non C89 comments
* add qdev.desc
changes from v15->v16:
Behavioral changes:
* fix abort on client answer after card remove
* enable migration
* remove side affect code from asserts
* return consistent self-powered state
* mask out reserved bits in ccid_set_parameters
* add missing abRFU in SetParameters (no affect on linux guest)
whitefixes / comments / consts defines:
* remove stale comment
* remove ccid_print_pending_answers if no DEBUG_CCID
* replace printf's with DPRINTF, remove DEBUG_CCID, add verbosity defines
* use error_report
* update copyright (most of the code is not original)
* reword known bug comment
* add missing closing quote in comment
* add missing whitespace on one line
* s/CCID_SetParameter/CCID_SetParameters/
* add comments
* use define for max packet size
Comment for "return consistent self-powered state":
the Configuration Descriptor bmAttributes claims we are self powered,
but we were returning not self powered to USB_REQ_GET_STATUS control message.
In practice, this message is not sent by a linux 2.6.35.10-74.fc14.x86_64
guest (not tested on other guests), unless you issue lsusb -v as root (for
example).
---
Makefile.objs | 1 +
configure | 6 +
hw/ccid.h | 54 +++
hw/usb-ccid.c | 1391 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 1452 insertions(+), 0 deletions(-)
create mode 100644 hw/ccid.h
create mode 100644 hw/usb-ccid.c
diff --git a/Makefile.objs b/Makefile.objs
index c144df1..414d206 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -197,6 +197,7 @@ hw-obj-$(CONFIG_APM) += pm_smbus.o apm.o
hw-obj-$(CONFIG_DMA) += dma.o
hw-obj-$(CONFIG_HPET) += hpet.o
hw-obj-$(CONFIG_APPLESMC) += applesmc.o
+hw-obj-$(CONFIG_SMARTCARD) += usb-ccid.o
# PPC devices
hw-obj-$(CONFIG_OPENPIC) += openpic.o
diff --git a/configure b/configure
index 791b71d..147aab3 100755
--- a/configure
+++ b/configure
@@ -174,6 +174,7 @@ trace_backend="nop"
trace_file="trace"
spice=""
rbd=""
+smartcard="yes"
# parse CC options first
for opt do
@@ -2523,6 +2524,7 @@ echo "Trace output file $trace_file-<pid>"
echo "spice support $spice"
echo "rbd support $rbd"
echo "xfsctl support $xfs"
+echo "smartcard support $smartcard"
if test $sdl_too_old = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -2804,6 +2806,10 @@ if test "$spice" = "yes" ; then
echo "CONFIG_SPICE=y" >> $config_host_mak
fi
+if test "$smartcard" = "yes" ; then
+ echo "CONFIG_SMARTCARD=y" >> $config_host_mak
+fi
+
# XXX: suppress that
if [ "$bsd" = "yes" ] ; then
echo "CONFIG_BSD=y" >> $config_host_mak
diff --git a/hw/ccid.h b/hw/ccid.h
new file mode 100644
index 0000000..4350bc2
--- /dev/null
+++ b/hw/ccid.h
@@ -0,0 +1,54 @@
+/*
+ * CCID Passthru Card Device emulation
+ *
+ * Copyright (c) 2011 Red Hat.
+ * Written by Alon Levy.
+ *
+ * This code is licenced under the GNU LGPL, version 2 or later.
+ */
+
+#ifndef CCID_H
+#define CCID_H
+
+#include "qdev.h"
+
+typedef struct CCIDCardState CCIDCardState;
+typedef struct CCIDCardInfo CCIDCardInfo;
+
+/* state of the CCID Card device (i.e. hw/ccid-card-*.c)
+ */
+struct CCIDCardState {
+ DeviceState qdev;
+ uint32_t slot; /* For future use with multiple slot reader. */
+};
+
+/* callbacks to be used by the CCID device (hw/usb-ccid.c) to call
+ * into the smartcard device (hw/ccid-card-*.c)
+ */
+struct CCIDCardInfo {
+ DeviceInfo qdev;
+ void (*print)(Monitor *mon, CCIDCardState *card, int indent);
+ const uint8_t *(*get_atr)(CCIDCardState *card, uint32_t *len);
+ void (*apdu_from_guest)(CCIDCardState *card,
+ const uint8_t *apdu,
+ uint32_t len);
+ int (*exitfn)(CCIDCardState *card);
+ int (*initfn)(CCIDCardState *card);
+};
+
+/* API for smartcard calling the CCID device (used by hw/ccid-card-*.c)
+ */
+void ccid_card_send_apdu_to_guest(CCIDCardState *card,
+ uint8_t *apdu,
+ uint32_t len);
+void ccid_card_card_removed(CCIDCardState *card);
+void ccid_card_card_inserted(CCIDCardState *card);
+void ccid_card_card_error(CCIDCardState *card, uint64_t error);
+void ccid_card_qdev_register(CCIDCardInfo *card);
+
+/* support guest visible insertion/removal of ccid devices based on actual
+ * devices connected/removed. Called by card implementation (passthru, local) */
+int ccid_card_ccid_attach(CCIDCardState *card);
+void ccid_card_ccid_detach(CCIDCardState *card);
+
+#endif /* CCID_H */
diff --git a/hw/usb-ccid.c b/hw/usb-ccid.c
new file mode 100644
index 0000000..bf4022a
--- /dev/null
+++ b/hw/usb-ccid.c
@@ -0,0 +1,1391 @@
+/*
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * CCID Device emulation
+ *
+ * Written by Alon Levy, with contributions from Robert Relyea.
+ *
+ * Based on usb-serial.c, see it's copyright and attributions below.
+ *
+ * This code is licenced under the GNU LGPL, version 2 or later.
+ *
+ * -------
+ *
+ * usb-serial.c copyright and attribution:
+ * Copyright (c) 2006 CodeSourcery.
+ * Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org>
+ * Written by Paul Brook, reused for FTDI by Samuel Thibault,
+ */
+
+/* References:
+ *
+ * CCID Specification Revision 1.1 April 22nd 2005
+ * "Universal Serial Bus, Device Class: Smart Card"
+ * Specification for Integrated Circuit(s) Cards Interface Devices
+ *
+ * Endianess note: from the spec (1.3)
+ * "Fields that are larger than a byte are stored in little endian"
+ *
+ * KNOWN BUGS
+ * 1. remove/insert can sometimes result in removed state instead of inserted.
+ * This is a result of the following:
+ * symptom: dmesg shows ERMOTEIO (-121), pcscd shows -99. This can happen
+ * when a short packet is sent, as seen in uhci-usb.c, resulting from a urb
+ * from the guest requesting SPD and us returning a smaller packet.
+ * Not sure which messages trigger this.
+ *
+ */
+
+#include "qemu-common.h"
+#include "qemu-error.h"
+#include "usb.h"
+#include "monitor.h"
+
+#include "hw/ccid.h"
+
+#define DPRINTF(s, lvl, fmt, ...) \
+do { \
+ if (lvl <= s->debug) { \
+ printf("usb-ccid: " fmt , ## __VA_ARGS__); \
+ } \
+} while (0)
+
+#define D_WARN 1
+#define D_INFO 2
+#define D_MORE_INFO 3
+#define D_VERBOSE 4
+
+#define CCID_DEV_NAME "usb-ccid"
+
+/* The two options for variable sized buffers:
+ * make them constant size, for large enough constant,
+ * or handle the migration complexity - VMState doesn't handle this case.
+ * sizes are expected never to be exceeded, unless guest misbehaves. */
+#define BULK_OUT_DATA_SIZE 65536
+#define PENDING_ANSWERS_NUM 128
+
+#define BULK_IN_BUF_SIZE 384
+#define BULK_IN_PENDING_NUM 8
+
+#define InterfaceOutClass \
+ ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8)
+
+#define InterfaceInClass \
+ ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE)<<8)
+
+#define CCID_MAX_PACKET_SIZE 64
+
+#define CCID_CONTROL_ABORT 0x1
+#define CCID_CONTROL_GET_CLOCK_FREQUENCIES 0x2
+#define CCID_CONTROL_GET_DATA_RATES 0x3
+
+#define CCID_PRODUCT_DESCRIPTION "QEMU USB CCID"
+#define CCID_VENDOR_DESCRIPTION "QEMU " QEMU_VERSION
+#define CCID_INTERFACE_NAME "CCID Interface"
+#define CCID_SERIAL_NUMBER_STRING "1"
+/* Using Gemplus Vendor and Product id
+ Effect on various drivers:
+ * usbccid.sys (winxp, others untested) is a class driver so it doesn't care.
+ * linux has a number of class drivers, but openct filters based on
+ vendor/product (/etc/openct.conf under fedora), hence Gemplus.
+ */
+#define CCID_VENDOR_ID 0x08e6
+#define CCID_PRODUCT_ID 0x4433
+#define CCID_DEVICE_VERSION 0x0000
+
+/* BULK_OUT messages from PC to Reader
+ Defined in CCID Rev 1.1 6.1 (page 26)
+ */
+#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn 0x62
+#define CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff 0x63
+#define CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus 0x65
+#define CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock 0x6f
+#define CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters 0x6c
+#define CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters 0x6d
+#define CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters 0x61
+#define CCID_MESSAGE_TYPE_PC_to_RDR_Escape 0x6b
+#define CCID_MESSAGE_TYPE_PC_to_RDR_IccClock 0x6e
+#define CCID_MESSAGE_TYPE_PC_to_RDR_T0APDU 0x6a
+#define CCID_MESSAGE_TYPE_PC_to_RDR_Secure 0x69
+#define CCID_MESSAGE_TYPE_PC_to_RDR_Mechanical 0x71
+#define CCID_MESSAGE_TYPE_PC_to_RDR_Abort 0x72
+#define CCID_MESSAGE_TYPE_PC_to_RDR_SetDataRateAndClockFrequency 0x73
+
+/* BULK_IN messages from Reader to PC
+ Defined in CCID Rev 1.1 6.2 (page 48)
+ */
+#define CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock 0x80
+#define CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus 0x81
+#define CCID_MESSAGE_TYPE_RDR_to_PC_Parameters 0x82
+#define CCID_MESSAGE_TYPE_RDR_to_PC_Escape 0x83
+#define CCID_MESSAGE_TYPE_RDR_to_PC_DataRateAndClockFrequency 0x84
+
+/* INTERRUPT_IN messages from Reader to PC
+ Defined in CCID Rev 1.1 6.3 (page 56)
+ */
+#define CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange 0x50
+#define CCID_MESSAGE_TYPE_RDR_to_PC_HardwareError 0x51
+
+/* Endpoints for CCID - addresses are up to us to decide.
+ To support slot insertion and removal we must have an interrupt in ep
+ in addition we need a bulk in and bulk out ep
+ 5.2, page 20
+ */
+#define CCID_INT_IN_EP 1
+#define CCID_BULK_IN_EP 2
+#define CCID_BULK_OUT_EP 3
+
+/* bmSlotICCState masks */
+#define SLOT_0_STATE_MASK 1
+#define SLOT_0_CHANGED_MASK 2
+
+/* Status codes that go in bStatus (see 6.2.6) */
+enum {
+ ICC_STATUS_PRESENT_ACTIVE = 0,
+ ICC_STATUS_PRESENT_INACTIVE,
+ ICC_STATUS_NOT_PRESENT
+};
+
+enum {
+ COMMAND_STATUS_NO_ERROR = 0,
+ COMMAND_STATUS_FAILED,
+ COMMAND_STATUS_TIME_EXTENSION_REQUIRED
+};
+
+/* Error codes that go in bError (see 6.2.6)
+ */
+enum {
+ ERROR_CMD_NOT_SUPPORTED = 0,
+ ERROR_CMD_ABORTED = -1,
+ ERROR_ICC_MUTE = -2,
+ ERROR_XFR_PARITY_ERROR = -3,
+ ERROR_XFR_OVERRUN = -4,
+ ERROR_HW_ERROR = -5,
+};
+
+/* 6.2.6 RDR_to_PC_SlotStatus definitions */
+enum {
+ CLOCK_STATUS_RUNNING = 0,
+ /* 0 - Clock Running, 1 - Clock stopped in State L, 2 - H,
+ 3 - unkonwn state. rest are RFU
+ */
+};
+
+typedef struct __attribute__ ((__packed__)) CCID_Header {
+ uint8_t bMessageType;
+ uint32_t dwLength;
+ uint8_t bSlot;
+ uint8_t bSeq;
+} CCID_Header;
+
+typedef struct __attribute__ ((__packed__)) CCID_BULK_IN {
+ CCID_Header hdr;
+ uint8_t bStatus; /* Only used in BULK_IN */
+ uint8_t bError; /* Only used in BULK_IN */
+} CCID_BULK_IN;
+
+typedef struct __attribute__ ((__packed__)) CCID_SlotStatus {
+ CCID_BULK_IN b;
+ uint8_t bClockStatus;
+} CCID_SlotStatus;
+
+typedef struct __attribute__ ((__packed__)) CCID_Parameter {
+ CCID_BULK_IN b;
+ uint8_t bProtocolNum;
+ uint8_t abProtocolDataStructure[0];
+} CCID_Parameter;
+
+typedef struct __attribute__ ((__packed__)) CCID_DataBlock {
+ CCID_BULK_IN b;
+ uint8_t bChainParameter;
+ uint8_t abData[0];
+} CCID_DataBlock;
+
+/* 6.1.4 PC_to_RDR_XfrBlock */
+typedef struct __attribute__ ((__packed__)) CCID_XferBlock {
+ CCID_Header hdr;
+ uint8_t bBWI; /* Block Waiting Timeout */
+ uint16_t wLevelParameter; /* XXX currently unused */
+ uint8_t abData[0];
+} CCID_XferBlock;
+
+typedef struct __attribute__ ((__packed__)) CCID_IccPowerOn {
+ CCID_Header hdr;
+ uint8_t bPowerSelect;
+ uint16_t abRFU;
+} CCID_IccPowerOn;
+
+typedef struct __attribute__ ((__packed__)) CCID_IccPowerOff {
+ CCID_Header hdr;
+ uint16_t abRFU;
+} CCID_IccPowerOff;
+
+typedef struct __attribute__ ((__packed__)) CCID_SetParameters {
+ CCID_Header hdr;
+ uint8_t bProtocolNum;
+ uint16_t abRFU;
+ uint8_t abProtocolDataStructure[0];
+} CCID_SetParameters;
+
+typedef struct CCID_Notify_Slot_Change {
+ uint8_t bMessageType; /* CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange */
+ uint8_t bmSlotICCState;
+} CCID_Notify_Slot_Change;
+
+/* used for DataBlock response to XferBlock */
+typedef struct Answer {
+ uint8_t slot;
+ uint8_t seq;
+} Answer;
+
+/* pending BULK_IN messages */
+typedef struct BulkIn {
+ uint8_t data[BULK_IN_BUF_SIZE];
+ uint32_t len;
+ uint32_t pos;
+} BulkIn;
+
+enum {
+ MIGRATION_NONE,
+ MIGRATION_MIGRATED,
+};
+
+typedef struct CCIDBus CCIDBus;
+typedef struct USBCCIDState USBCCIDState;
+
+#define MAX_PROTOCOL_SIZE 7
+
+/**
+ * powered - defaults to true, changed by PowerOn/PowerOff messages
+ */
+struct USBCCIDState {
+ USBDevice dev;
+ CCIDBus *bus;
+ CCIDCardState *card;
+ CCIDCardInfo *cardinfo; /* caching the info pointer */
+ uint8_t debug;
+ BulkIn bulk_in_pending[BULK_IN_PENDING_NUM]; /* circular */
+ uint32_t bulk_in_pending_start;
+ uint32_t bulk_in_pending_end; /* first free */
+ uint32_t bulk_in_pending_num;
+ BulkIn *current_bulk_in;
+ uint8_t bulk_out_data[BULK_OUT_DATA_SIZE];
+ uint32_t bulk_out_pos;
+ uint8_t bmSlotICCState;
+ uint8_t powered;
+ uint8_t notify_slot_change;
+ uint64_t last_answer_error;
+ Answer pending_answers[PENDING_ANSWERS_NUM];
+ uint32_t pending_answers_start;
+ uint32_t pending_answers_end;
+ uint32_t pending_answers_num;
+ uint8_t bError;
+ uint8_t bmCommandStatus;
+ uint8_t bProtocolNum;
+ uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE];
+ uint32_t ulProtocolDataStructureSize;
+ uint32_t state_vmstate;
+ uint8_t migration_state;
+ uint32_t migration_target_ip;
+ uint16_t migration_target_port;
+};
+
+/* CCID Spec chapter 4: CCID uses a standard device descriptor per Chapter 9,
+ * "USB Device Framework", section 9.6.1, in the Universal Serial Bus
+ * Specification.
+ *
+ * This device implemented based on the spec and with an Athena Smart Card
+ * Reader as reference:
+ * 0dc3:1004 Athena Smartcard Solutions, Inc.
+ */
+
+static const uint8_t qemu_ccid_dev_descriptor[] = {
+ 0x12, /* u8 bLength; */
+ USB_DT_DEVICE, /* u8 bDescriptorType; Device */
+ 0x10, 0x01, /* u16 bcdUSB; v1.1 */
+
+ 0x00, /* u8 bDeviceClass; */
+ 0x00, /* u8 bDeviceSubClass; */
+ 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
+ 0x40, /* u8 bMaxPacketSize0; 8 Bytes (valid: 8,16,32,64) */
+
+ /* Vendor and product id are arbitrary. */
+ /* u16 idVendor */
+ CCID_VENDOR_ID & 0xff, CCID_VENDOR_ID >> 8,
+ /* u16 idProduct */
+ CCID_PRODUCT_ID & 0xff, CCID_PRODUCT_ID >> 8,
+ /* u16 bcdDevice */
+ CCID_DEVICE_VERSION & 0xff, CCID_DEVICE_VERSION >> 8,
+ 0x01, /* u8 iManufacturer; */
+ 0x02, /* u8 iProduct; */
+ 0x03, /* u8 iSerialNumber; */
+ 0x01, /* u8 bNumConfigurations; */
+};
+
+static const uint8_t qemu_ccid_config_descriptor[] = {
+
+ /* one configuration */
+ 0x09, /* u8 bLength; */
+ USB_DT_CONFIG, /* u8 bDescriptorType; Configuration */
+ 0x5d, 0x00, /* u16 wTotalLength; 9+9+54+7+7+7 */
+ 0x01, /* u8 bNumInterfaces; (1) */
+ 0x01, /* u8 bConfigurationValue; */
+ 0x00, /* u8 iConfiguration; */
+ 0xe0, /* u8 bmAttributes;
+ Bit 7: must be set,
+ 6: Self-powered,
+ 5: Remote wakeup,
+ 4..0: resvd */
+ 100/2, /* u8 MaxPower; 50 == 100mA */
+
+ /* one interface */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; Interface */
+ 0x00, /* u8 if_bInterfaceNumber; */
+ 0x00, /* u8 if_bAlternateSetting; */
+ 0x03, /* u8 if_bNumEndpoints; */
+ 0x0b, /* u8 if_bInterfaceClass; Smart Card Device Class */
+ 0x00, /* u8 if_bInterfaceSubClass; Subclass code */
+ 0x00, /* u8 if_bInterfaceProtocol; Protocol code */
+ 0x04, /* u8 if_iInterface; Index of string descriptor */
+
+ /* Smart Card Device Class Descriptor */
+ 0x36, /* u8 bLength; */
+ 0x21, /* u8 bDescriptorType; Functional */
+ 0x10, 0x01, /* u16 bcdCCID; CCID Specification Release Number. */
+ 0x00, /* u8 bMaxSlotIndex; The index of the highest available
+ slot on this device. All slots are consecutive starting
+ at 00h. */
+ 0x07, /* u8 bVoltageSupport; 01h - 5.0v, 02h - 3.0, 03 - 1.8 */
+
+ 0x03, 0x00, /* u32 dwProtocols; RRRR PPPP. RRRR = 0000h.*/
+ 0x00, 0x00, /* PPPP: 0001h = Protocol T=0, 0002h = Protocol T=1 */
+ /* u32 dwDefaultClock; in kHZ (0x0fa0 is 4 MHz) */
+ 0xa0, 0x0f, 0x00, 0x00,
+ /* u32 dwMaximumClock; */
+ 0x00, 0x00, 0x01, 0x00,
+ 0x00, /* u8 bNumClockSupported; *
+ * 0 means just the default and max. */
+ /* u32 dwDataRate ;bps. 9600 == 00002580h */
+ 0x80, 0x25, 0x00, 0x00,
+ /* u32 dwMaxDataRate ; 11520 bps == 0001C200h */
+ 0x00, 0xC2, 0x01, 0x00,
+ 0x00, /* u8 bNumDataRatesSupported; 00 means all rates between
+ * default and max */
+ /* u32 dwMaxIFSD; *
+ * maximum IFSD supported by CCID for protocol *
+ * T=1 (Maximum seen from various cards) */
+ 0xfe, 0x00, 0x00, 0x00,
+ /* u32 dwSyncProtocols; 1 - 2-wire, 2 - 3-wire, 4 - I2C */
+ 0x00, 0x00, 0x00, 0x00,
+ /* u32 dwMechanical; 0 - no special characteristics. */
+ 0x00, 0x00, 0x00, 0x00,
+ /* u32 dwFeatures;
+ * 0 - No special characteristics
+ * + 2 Automatic parameter configuration based on ATR data
+ * + 4 Automatic activation of ICC on inserting
+ * + 8 Automatic ICC voltage selection
+ * + 10 Automatic ICC clock frequency change
+ * + 20 Automatic baud rate change
+ * + 40 Automatic parameters negotiation made by the CCID
+ * + 80 automatic PPS made by the CCID
+ * 100 CCID can set ICC in clock stop mode
+ * 200 NAD value other then 00 accepted (T=1 protocol)
+ * + 400 Automatic IFSD exchange as first exchange (T=1)
+ * One of the following only:
+ * + 10000 TPDU level exchanges with CCID
+ * 20000 Short APDU level exchange with CCID
+ * 40000 Short and Extended APDU level exchange with CCID
+ *
+ * + 100000 USB Wake up signaling supported on card
+ * insertion and removal. Must set bit 5 in bmAttributes
+ * in Configuration descriptor if 100000 is set.*/
+ 0xfe, 0x04, 0x11, 0x00,
+ /* u32 dwMaxCCIDMessageLength; For extended APDU in
+ * [261 + 10 , 65544 + 10]. Otherwise the minimum is
+ * wMaxPacketSize of the Bulk-OUT endpoint */
+ 0x12, 0x00, 0x01, 0x00,
+ 0xFF, /* u8 bClassGetResponse; Significant only for CCID that
+ * offers an APDU level for exchanges. Indicates the
+ * default class value used by the CCID when it sends a
+ * Get Response command to perform the transportation of
+ * an APDU by T=0 protocol
+ * FFh indicates that the CCID echos the class of the APDU.
+ */
+ 0xFF, /* u8 bClassEnvelope; EAPDU only. Envelope command for
+ * T=0 */
+ 0x00, 0x00, /* u16 wLcdLayout; XXYY Number of lines (XX) and chars per
+ * line for LCD display used for PIN entry. 0000 - no LCD
+ * */
+ 0x01, /* u8 bPINSupport; 01h PIN Verification,
+ * 02h PIN Modification */
+ 0x01, /* u8 bMaxCCIDBusySlots; */
+
+ /* Interrupt-IN endpoint */
+ 0x07, /* u8 ep_bLength; */
+ /* u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT,
+ /* u8 ep_bEndpointAddress; IN Endpoint 1 */
+ 0x80 | CCID_INT_IN_EP,
+ 0x03, /* u8 ep_bmAttributes; Interrupt */
+ /* u16 ep_wMaxPacketSize; */
+ CCID_MAX_PACKET_SIZE & 0xff, (CCID_MAX_PACKET_SIZE >> 8),
+ 0xff, /* u8 ep_bInterval; */
+
+ /* Bulk-In endpoint */
+ 0x07, /* u8 ep_bLength; */
+ /* u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT,
+ /* u8 ep_bEndpointAddress; IN Endpoint 2 */
+ 0x80 | CCID_BULK_IN_EP,
+ 0x02, /* u8 ep_bmAttributes; Bulk */
+ 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x00, /* u8 ep_bInterval; */
+
+ /* Bulk-Out endpoint */
+ 0x07, /* u8 ep_bLength; */
+ /* u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT,
+ /* u8 ep_bEndpointAddress; OUT Endpoint 3 */
+ CCID_BULK_OUT_EP,
+ 0x02, /* u8 ep_bmAttributes; Bulk */
+ 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x00, /* u8 ep_bInterval; */
+
+};
+
+static bool ccid_has_pending_answers(USBCCIDState *s)
+{
+ return s->pending_answers_num > 0;
+}
+
+static void ccid_clear_pending_answers(USBCCIDState *s)
+{
+ s->pending_answers_num = 0;
+ s->pending_answers_start = 0;
+ s->pending_answers_end = 0;
+}
+
+static void ccid_print_pending_answers(USBCCIDState *s)
+{
+ Answer *answer;
+ int i, count;
+
+ DPRINTF(s, D_VERBOSE, "usb-ccid: pending answers:");
+ if (!ccid_has_pending_answers(s)) {
+ DPRINTF(s, D_VERBOSE, " empty\n");
+ return;
+ }
+ for (i = s->pending_answers_start, count = s->pending_answers_num ;
+ count > 0; count--, i++) {
+ answer = &s->pending_answers[i % PENDING_ANSWERS_NUM];
+ if (count == 1) {
+ DPRINTF(s, D_VERBOSE, "%d:%d\n", answer->slot, answer->seq);
+ } else {
+ DPRINTF(s, D_VERBOSE, "%d:%d,", answer->slot, answer->seq);
+ }
+ }
+}
+
+static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr)
+{
+ Answer *answer;
+
+ assert(s->pending_answers_num < PENDING_ANSWERS_NUM);
+ s->pending_answers_num++;
+ answer =
+ &s->pending_answers[(s->pending_answers_end++) % PENDING_ANSWERS_NUM];
+ answer->slot = hdr->bSlot;
+ answer->seq = hdr->bSeq;
+ ccid_print_pending_answers(s);
+}
+
+static void ccid_remove_pending_answer(USBCCIDState *s,
+ uint8_t *slot, uint8_t *seq)
+{
+ Answer *answer;
+
+ assert(s->pending_answers_num > 0);
+ s->pending_answers_num--;
+ answer =
+ &s->pending_answers[(s->pending_answers_start++) % PENDING_ANSWERS_NUM];
+ *slot = answer->slot;
+ *seq = answer->seq;
+ ccid_print_pending_answers(s);
+}
+
+static void ccid_bulk_in_clear(USBCCIDState *s)
+{
+ s->bulk_in_pending_start = 0;
+ s->bulk_in_pending_end = 0;
+ s->bulk_in_pending_num = 0;
+}
+
+static void ccid_bulk_in_release(USBCCIDState *s)
+{
+ assert(s->current_bulk_in != NULL);
+ s->current_bulk_in->pos = 0;
+ s->current_bulk_in = NULL;
+}
+
+static void ccid_bulk_in_get(USBCCIDState *s)
+{
+ if (s->current_bulk_in != NULL || s->bulk_in_pending_num == 0) {
+ return;
+ }
+ assert(s->bulk_in_pending_num > 0);
+ s->bulk_in_pending_num--;
+ s->current_bulk_in = &s->bulk_in_pending[
+ (s->bulk_in_pending_start++) % BULK_IN_PENDING_NUM];
+}
+
+static void *ccid_reserve_recv_buf(USBCCIDState *s, uint16_t len)
+{
+ BulkIn *bulk_in;
+
+ DPRINTF(s, D_VERBOSE, "%s: QUEUE: reserve %d bytes\n", __func__, len);
+
+ /* look for an existing element */
+ if (len > BULK_IN_BUF_SIZE) {
+ DPRINTF(s, D_WARN, "usb-ccid.c: %s: len larger then max (%d>%d). "
+ "discarding message.\n",
+ __func__, len, BULK_IN_BUF_SIZE);
+ return NULL;
+ }
+ if (s->bulk_in_pending_num >= BULK_IN_PENDING_NUM) {
+ DPRINTF(s, D_WARN, "usb-ccid.c: %s: No free bulk_in buffers. "
+ "discarding message.\n", __func__);
+ return NULL;
+ }
+ bulk_in =
+ &s->bulk_in_pending[(s->bulk_in_pending_end++) % BULK_IN_PENDING_NUM];
+ s->bulk_in_pending_num++;
+ bulk_in->len = len;
+ return bulk_in->data;
+}
+
+static void ccid_reset(USBCCIDState *s)
+{
+ ccid_bulk_in_clear(s);
+ ccid_clear_pending_answers(s);
+}
+
+static void ccid_detach(USBCCIDState *s)
+{
+ ccid_reset(s);
+}
+
+static void ccid_handle_reset(USBDevice *dev)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+
+ DPRINTF(s, 1, "Reset\n");
+
+ ccid_reset(s);
+}
+
+static int ccid_handle_control(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+ int ret = 0;
+
+ DPRINTF(s, 1, "got control %x, value %x\n", request, value);
+ switch (request) {
+ case DeviceRequest | USB_REQ_GET_STATUS:
+ data[0] = (1 << USB_DEVICE_SELF_POWERED) |
+ (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
+ data[1] = 0x00;
+ ret = 2;
+ break;
+ case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 0;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 1;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_ADDRESS:
+ dev->addr = value;
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ switch (value >> 8) {
+ case USB_DT_DEVICE:
+ memcpy(data, qemu_ccid_dev_descriptor,
+ sizeof(qemu_ccid_dev_descriptor));
+ ret = sizeof(qemu_ccid_dev_descriptor);
+ break;
+ case USB_DT_CONFIG:
+ memcpy(data, qemu_ccid_config_descriptor,
+ sizeof(qemu_ccid_config_descriptor));
+ ret = sizeof(qemu_ccid_config_descriptor);
+ break;
+ case USB_DT_STRING:
+ switch (value & 0xff) {
+ case 0:
+ /* language ids */
+ data[0] = 4;
+ data[1] = 3;
+ data[2] = 0x09;
+ data[3] = 0x04;
+ ret = 4;
+ break;
+ case 1:
+ /* vendor description */
+ ret = set_usb_string(data, CCID_VENDOR_DESCRIPTION);
+ break;
+ case 2:
+ /* product description */
+ ret = set_usb_string(data, CCID_PRODUCT_DESCRIPTION);
+ break;
+ case 3:
+ /* serial number */
+ ret = set_usb_string(data, CCID_SERIAL_NUMBER_STRING);
+ break;
+ case 4:
+ /* interface name */
+ ret = set_usb_string(data, CCID_INTERFACE_NAME);
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ case DeviceRequest | USB_REQ_GET_CONFIGURATION:
+ data[0] = 1;
+ ret = 1;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
+ /* Only one configuration - we just ignore the request */
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_INTERFACE:
+ data[0] = 0;
+ ret = 1;
+ break;
+ case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
+ ret = 0;
+ break;
+ case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
+ ret = 0;
+ break;
+
+ /* Class specific requests. */
+ case InterfaceOutClass | CCID_CONTROL_ABORT:
+ DPRINTF(s, 1, "ccid_control abort UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ case InterfaceInClass | CCID_CONTROL_GET_CLOCK_FREQUENCIES:
+ DPRINTF(s, 1, "ccid_control get clock frequencies UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ case InterfaceInClass | CCID_CONTROL_GET_DATA_RATES:
+ DPRINTF(s, 1, "ccid_control get data rates UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ default:
+fail:
+ DPRINTF(s, 1, "got unsupported/bogus control %x, value %x\n",
+ request, value);
+ ret = USB_RET_STALL;
+ break;
+ }
+ return ret;
+}
+
+static bool ccid_card_inserted(USBCCIDState *s)
+{
+ return s->bmSlotICCState & SLOT_0_STATE_MASK;
+}
+
+static uint8_t ccid_card_status(USBCCIDState *s)
+{
+ return ccid_card_inserted(s)
+ ? (s->powered ?
+ ICC_STATUS_PRESENT_ACTIVE
+ : ICC_STATUS_PRESENT_INACTIVE
+ )
+ : ICC_STATUS_NOT_PRESENT;
+}
+
+static uint8_t ccid_calc_status(USBCCIDState *s)
+{
+ /* page 55, 6.2.6, calculation of bStatus from bmICCStatus and
+ bmCommandStatus
+ */
+ uint8_t ret = ccid_card_status(s) | (s->bmCommandStatus << 6);
+ DPRINTF(s, D_VERBOSE, "status = %d\n", ret);
+ return ret;
+}
+
+static void ccid_reset_error_status(USBCCIDState *s)
+{
+ s->bError = ERROR_CMD_NOT_SUPPORTED;
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+}
+
+static void ccid_write_slot_status(USBCCIDState *s, CCID_Header *recv)
+{
+ CCID_SlotStatus *h = ccid_reserve_recv_buf(s, sizeof(CCID_SlotStatus));
+ if (h == NULL) {
+ return;
+ }
+ h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_SlotStatus;
+ h->b.hdr.dwLength = 0;
+ h->b.hdr.bSlot = recv->bSlot;
+ h->b.hdr.bSeq = recv->bSeq;
+ h->b.bStatus = ccid_calc_status(s);
+ h->b.bError = s->bError;
+ h->bClockStatus = CLOCK_STATUS_RUNNING;
+ ccid_reset_error_status(s);
+}
+
+static void ccid_write_parameters(USBCCIDState *s, CCID_Header *recv)
+{
+ CCID_Parameter *h;
+ uint32_t len = s->ulProtocolDataStructureSize;
+
+ h = ccid_reserve_recv_buf(s, sizeof(CCID_Parameter) + len);
+ if (h == NULL) {
+ return;
+ }
+ h->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_Parameters;
+ h->b.hdr.dwLength = 0;
+ h->b.hdr.bSlot = recv->bSlot;
+ h->b.hdr.bSeq = recv->bSeq;
+ h->b.bStatus = ccid_calc_status(s);
+ h->b.bError = s->bError;
+ h->bProtocolNum = s->bProtocolNum;
+ memcpy(h->abProtocolDataStructure, s->abProtocolDataStructure, len);
+ ccid_reset_error_status(s);
+}
+
+static void ccid_write_data_block(
+ USBCCIDState *s, uint8_t slot, uint8_t seq,
+ const uint8_t *data, uint32_t len)
+{
+ CCID_DataBlock *p = ccid_reserve_recv_buf(s, sizeof(*p) + len);
+
+ if (p == NULL) {
+ return;
+ }
+ p->b.hdr.bMessageType = CCID_MESSAGE_TYPE_RDR_to_PC_DataBlock;
+ p->b.hdr.dwLength = cpu_to_le32(len);
+ p->b.hdr.bSlot = slot;
+ p->b.hdr.bSeq = seq;
+ p->b.bStatus = ccid_calc_status(s);
+ p->b.bError = s->bError;
+ if (p->b.bError) {
+ DPRINTF(s, D_VERBOSE, "error %d", p->b.bError);
+ }
+ memcpy(p->abData, data, len);
+ ccid_reset_error_status(s);
+}
+
+static void ccid_write_data_block_answer(USBCCIDState *s,
+ const uint8_t *data, uint32_t len)
+{
+ uint8_t seq;
+ uint8_t slot;
+
+ if (!ccid_has_pending_answers(s)) {
+ abort();
+ }
+ ccid_remove_pending_answer(s, &slot, &seq);
+ ccid_write_data_block(s, slot, seq, data, len);
+}
+
+static void ccid_write_data_block_atr(USBCCIDState *s, CCID_Header *recv)
+{
+ const uint8_t *atr = NULL;
+ uint32_t len = 0;
+
+ if (s->card) {
+ atr = s->cardinfo->get_atr(s->card, &len);
+ }
+ ccid_write_data_block(s, recv->bSlot, recv->bSeq, atr, len);
+}
+
+static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv)
+{
+ CCID_SetParameters *ph = (CCID_SetParameters *) recv;
+ uint32_t len = 0;
+ if ((ph->bProtocolNum & 3) == 0) {
+ len = 5;
+ }
+ if ((ph->bProtocolNum & 3) == 1) {
+ len = 7;
+ }
+ if (len == 0) {
+ s->bmCommandStatus = COMMAND_STATUS_FAILED;
+ s->bError = 7; /* Protocol invalid or not supported */
+ return;
+ }
+ s->bProtocolNum = ph->bProtocolNum;
+ memcpy(s->abProtocolDataStructure, ph->abProtocolDataStructure, len);
+ s->ulProtocolDataStructureSize = len;
+ DPRINTF(s, 1, "%s: using len %d\n", __func__, len);
+}
+
+/* must be 5 bytes for T=0, 7 bytes for T=1
+ * See page 52 */
+static const uint8_t abDefaultProtocolDataStructure[7] = {
+ 0x77, 0x00, 0x00, 0x00, 0x00, 0xfe /*IFSC*/, 0x00 /*NAD*/ };
+
+static void ccid_reset_parameters(USBCCIDState *s)
+{
+ uint32_t len = sizeof(abDefaultProtocolDataStructure);
+
+ s->bProtocolNum = 1; /* T=1 */
+ s->ulProtocolDataStructureSize = len;
+ memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len);
+}
+
+static void ccid_report_error_failed(USBCCIDState *s, uint8_t error)
+{
+ s->bmCommandStatus = COMMAND_STATUS_FAILED;
+ s->bError = error;
+}
+
+/* NOTE: only a single slot is supported (SLOT_0)
+ */
+static void ccid_on_slot_change(USBCCIDState *s, bool full)
+{
+ /* RDR_to_PC_NotifySlotChange, 6.3.1 page 56
+ */
+ uint8_t current = s->bmSlotICCState;
+ if (full) {
+ s->bmSlotICCState |= SLOT_0_STATE_MASK;
+ } else {
+ s->bmSlotICCState &= ~SLOT_0_STATE_MASK;
+ }
+ if (current != s->bmSlotICCState) {
+ s->bmSlotICCState |= SLOT_0_CHANGED_MASK;
+ }
+ s->notify_slot_change = true;
+}
+
+static void ccid_write_data_block_error(
+ USBCCIDState *s, uint8_t slot, uint8_t seq)
+{
+ ccid_write_data_block(s, slot, seq, NULL, 0);
+}
+
+static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv)
+{
+ uint32_t len;
+
+ if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) {
+ DPRINTF(s, 1,
+ "usb-ccid: not sending apdu to client, no card connected\n");
+ ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq);
+ return;
+ }
+ len = le32_to_cpu(recv->hdr.dwLength);
+ DPRINTF(s, 1, "%s: seq %d, len %d\n", __func__,
+ recv->hdr.bSeq, len);
+ ccid_add_pending_answer(s, (CCID_Header *)recv);
+ if (s->card) {
+ s->cardinfo->apdu_from_guest(s->card, recv->abData, len);
+ } else {
+ DPRINTF(s, D_WARN, "warning: discarded apdu\n");
+ }
+}
+
+/* handle a single USB_TOKEN_OUT, return value returned to guest.
+ * 0 - all ok
+ * USB_RET_STALL - failed to handle packet */
+static int ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p)
+{
+ CCID_Header *ccid_header;
+
+ if (p->len + s->bulk_out_pos > BULK_OUT_DATA_SIZE) {
+ return USB_RET_STALL;
+ }
+ ccid_header = (CCID_Header *)s->bulk_out_data;
+ memcpy(s->bulk_out_data + s->bulk_out_pos, p->data, p->len);
+ s->bulk_out_pos += p->len;
+ if (p->len == CCID_MAX_PACKET_SIZE) {
+ DPRINTF(s, D_VERBOSE,
+ "usb-ccid: bulk_in: expecting more packets (%d/%d)\n",
+ p->len, ccid_header->dwLength);
+ return 0;
+ }
+ if (s->bulk_out_pos < 10) {
+ DPRINTF(s, 1,
+ "%s: bad USB_TOKEN_OUT length, should be at least 10 bytes\n",
+ __func__);
+ } else {
+ DPRINTF(s, D_MORE_INFO, "%s %x\n", __func__, ccid_header->bMessageType);
+ switch (ccid_header->bMessageType) {
+ case CCID_MESSAGE_TYPE_PC_to_RDR_GetSlotStatus:
+ ccid_write_slot_status(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOn:
+ DPRINTF(s, 1, "PowerOn: %d\n",
+ ((CCID_IccPowerOn *)(ccid_header))->bPowerSelect);
+ s->powered = true;
+ if (!ccid_card_inserted(s)) {
+ ccid_report_error_failed(s, ERROR_ICC_MUTE);
+ }
+ /* atr is written regardless of error. */
+ ccid_write_data_block_atr(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff:
+ DPRINTF(s, 1, "PowerOff\n");
+ ccid_reset_error_status(s);
+ s->powered = false;
+ ccid_write_slot_status(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_XfrBlock:
+ ccid_on_apdu_from_guest(s, (CCID_XferBlock *)s->bulk_out_data);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_SetParameters:
+ ccid_reset_error_status(s);
+ ccid_set_parameters(s, ccid_header);
+ ccid_write_parameters(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters:
+ ccid_reset_error_status(s);
+ ccid_reset_parameters(s);
+ ccid_write_parameters(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters:
+ ccid_reset_error_status(s);
+ ccid_write_parameters(s, ccid_header);
+ break;
+ default:
+ DPRINTF(s, 1,
+ "handle_data: ERROR: unhandled message type %Xh\n",
+ ccid_header->bMessageType);
+ /* the caller is expecting the device to respond, tell it we
+ * do't support the operation */
+ ccid_report_error_failed(s, ERROR_CMD_NOT_SUPPORTED);
+ ccid_write_slot_status(s, ccid_header);
+ break;
+ }
+ }
+ s->bulk_out_pos = 0;
+ return 0;
+}
+
+static int ccid_bulk_in_copy_to_guest(USBCCIDState *s, uint8_t *data, int len)
+{
+ int ret = 0;
+
+ assert(len > 0);
+ ccid_bulk_in_get(s);
+ if (s->current_bulk_in != NULL) {
+ ret = MIN(s->current_bulk_in->len - s->current_bulk_in->pos, len);
+ memcpy(data, s->current_bulk_in->data + s->current_bulk_in->pos, ret);
+ s->current_bulk_in->pos += ret;
+ if (s->current_bulk_in->pos == s->current_bulk_in->len) {
+ ccid_bulk_in_release(s);
+ }
+ } else {
+ ret = USB_RET_NAK; /* return when device has no data - usb 2.0 spec
+ Table 8-4 */
+ }
+ if (ret > 0) {
+ DPRINTF(s, D_MORE_INFO,
+ "%s: %d/%d req/act to guest (BULK_IN)\n", __func__, len, ret);
+ }
+ if (ret != USB_RET_NAK && ret < len) {
+ DPRINTF(s, 1,
+ "%s: returning short (EREMOTEIO) %d < %d\n", __func__, ret, len);
+ }
+ return ret;
+}
+
+static int ccid_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+ int ret = 0;
+ uint8_t *data = p->data;
+ int len = p->len;
+
+ switch (p->pid) {
+ case USB_TOKEN_OUT:
+ ret = ccid_handle_bulk_out(s, p);
+ break;
+
+ case USB_TOKEN_IN:
+ switch (p->devep & 0xf) {
+ case CCID_BULK_IN_EP:
+ if (!len) {
+ ret = USB_RET_NAK;
+ } else {
+ ret = ccid_bulk_in_copy_to_guest(s, data, len);
+ }
+ break;
+ case CCID_INT_IN_EP:
+ if (s->notify_slot_change) {
+ /* page 56, RDR_to_PC_NotifySlotChange */
+ data[0] = CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange;
+ data[1] = s->bmSlotICCState;
+ ret = 2;
+ s->notify_slot_change = false;
+ s->bmSlotICCState &= ~SLOT_0_CHANGED_MASK;
+ DPRINTF(s, D_INFO,
+ "handle_data: int_in: notify_slot_change %X, "
+ "requested len %d\n",
+ s->bmSlotICCState, len);
+ }
+ break;
+ default:
+ DPRINTF(s, 1, "Bad endpoint\n");
+ break;
+ }
+ break;
+ default:
+ DPRINTF(s, 1, "Bad token\n");
+ ret = USB_RET_STALL;
+ break;
+ }
+
+ return ret;
+}
+
+static void ccid_handle_destroy(USBDevice *dev)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+
+ ccid_bulk_in_clear(s);
+}
+
+static void ccid_flush_pending_answers(USBCCIDState *s)
+{
+ while (ccid_has_pending_answers(s)) {
+ ccid_write_data_block_answer(s, NULL, 0);
+ }
+}
+
+static Answer *ccid_peek_next_answer(USBCCIDState *s)
+{
+ return s->pending_answers_num == 0
+ ? NULL
+ : &s->pending_answers[s->pending_answers_start % PENDING_ANSWERS_NUM];
+}
+
+static void ccid_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
+{
+ CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev);
+ CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, qdev->info);
+
+ if (info->print) {
+ info->print(mon, card, indent);
+ }
+}
+
+struct CCIDBus {
+ BusState qbus;
+};
+
+static struct BusInfo ccid_bus_info = {
+ .name = "ccid-bus",
+ .size = sizeof(CCIDBus),
+ .print_dev = ccid_bus_dev_print,
+ .props = (Property[]) {
+ DEFINE_PROP_UINT32("slot", struct CCIDCardState, slot, 0),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static CCIDBus *ccid_bus_new(DeviceState *dev)
+{
+ CCIDBus *bus;
+
+ bus = FROM_QBUS(CCIDBus, qbus_create(&ccid_bus_info, dev, NULL));
+ bus->qbus.allow_hotplug = 1;
+
+ return bus;
+}
+
+void ccid_card_send_apdu_to_guest(CCIDCardState *card,
+ uint8_t *apdu, uint32_t len)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev.qdev,
+ card->qdev.parent_bus->parent);
+ Answer *answer;
+
+ if (!ccid_has_pending_answers(s)) {
+ DPRINTF(s, 1, "CCID ERROR: got an APDU without pending answers\n");
+ return;
+ }
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ answer = ccid_peek_next_answer(s);
+ if (answer == NULL) {
+ abort();
+ }
+ DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n",
+ len, answer->seq, answer->slot);
+ ccid_write_data_block_answer(s, apdu, len);
+}
+
+void ccid_card_card_removed(CCIDCardState *card)
+{
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ ccid_on_slot_change(s, false);
+ ccid_flush_pending_answers(s);
+ ccid_reset(s);
+}
+
+int ccid_card_ccid_attach(CCIDCardState *card)
+{
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ DPRINTF(s, 1, "CCID Attach\n");
+ if (s->migration_state == MIGRATION_MIGRATED) {
+ s->migration_state = MIGRATION_NONE;
+ }
+ return 0;
+}
+
+void ccid_card_ccid_detach(CCIDCardState *card)
+{
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ DPRINTF(s, 1, "CCID Detach\n");
+ if (ccid_card_inserted(s)) {
+ ccid_on_slot_change(s, false);
+ }
+ ccid_detach(s);
+}
+
+void ccid_card_card_error(CCIDCardState *card, uint64_t error)
+{
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ s->bmCommandStatus = COMMAND_STATUS_FAILED;
+ s->last_answer_error = error;
+ DPRINTF(s, 1, "VSC_Error: %lX\n", s->last_answer_error);
+ /* TODO: these error's should be more verbose and propogated to the guest.
+ * */
+ /* we flush all pending answers on CardRemove message in ccid-card-passthru,
+ * so check that first to not trigger abort */
+ if (ccid_has_pending_answers(s)) {
+ ccid_write_data_block_answer(s, NULL, 0);
+ }
+}
+
+void ccid_card_card_inserted(CCIDCardState *card)
+{
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ ccid_flush_pending_answers(s);
+ ccid_on_slot_change(s, true);
+}
+
+static int ccid_card_exit(DeviceState *qdev)
+{
+ int ret = 0;
+ CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev);
+ CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, qdev->info);
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+
+ if (ccid_card_inserted(s)) {
+ ccid_card_card_removed(card);
+ }
+ if (info->exitfn) {
+ ret = info->exitfn(card);
+ }
+ s->card = NULL;
+ s->cardinfo = NULL;
+ return ret;
+}
+
+static int ccid_card_init(DeviceState *qdev, DeviceInfo *base)
+{
+ CCIDCardState *card = DO_UPCAST(CCIDCardState, qdev, qdev);
+ CCIDCardInfo *info = DO_UPCAST(CCIDCardInfo, qdev, base);
+ USBCCIDState *s =
+ DO_UPCAST(USBCCIDState, dev.qdev, card->qdev.parent_bus->parent);
+ int ret = 0;
+
+ if (card->slot != 0) {
+ error_report("Warning: usb-ccid supports one slot, can't add %d",
+ card->slot);
+ return -1;
+ }
+ if (s->card != NULL) {
+ error_report("Warning: usb-ccid card already full, not adding\n");
+ return -1;
+ }
+ ret = info->initfn ? info->initfn(card) : ret;
+ if (ret == 0) {
+ s->card = card;
+ s->cardinfo = info;
+ }
+ return ret;
+}
+
+void ccid_card_qdev_register(CCIDCardInfo *card)
+{
+ card->qdev.bus_info = &ccid_bus_info;
+ card->qdev.init = ccid_card_init;
+ card->qdev.exit = ccid_card_exit;
+ qdev_register(&card->qdev);
+}
+
+static int ccid_initfn(USBDevice *dev)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+
+ s->bus = ccid_bus_new(&dev->qdev);
+ s->card = NULL;
+ s->cardinfo = NULL;
+ s->migration_state = MIGRATION_NONE;
+ s->migration_target_ip = 0;
+ s->migration_target_port = 0;
+ s->dev.speed = USB_SPEED_FULL;
+ s->notify_slot_change = false;
+ s->powered = true;
+ s->pending_answers_num = 0;
+ s->last_answer_error = 0;
+ s->bulk_in_pending_start = 0;
+ s->bulk_in_pending_end = 0;
+ s->current_bulk_in = NULL;
+ ccid_reset_error_status(s);
+ s->bulk_out_pos = 0;
+ ccid_reset_parameters(s);
+ ccid_reset(s);
+ return 0;
+}
+
+static int ccid_post_load(void *opaque, int version_id)
+{
+ USBCCIDState *s = opaque;
+
+ /* This must be done after usb_device_attach, which sets state to ATTACHED,
+ * while it must be DEFAULT in order to accept packets (like it is after
+ * reset, but reset will reset our addr and call our reset handler which
+ * may change state, and we don't want to do that when migrating). */
+ s->dev.state = s->state_vmstate;
+ return 0;
+}
+
+static void ccid_pre_save(void *opaque)
+{
+ USBCCIDState *s = opaque;
+
+ s->state_vmstate = s->dev.state;
+ if (s->dev.attached) {
+ /* migrating an open device, ignore reconnection CHR_EVENT to avoid an
+ * erronous detach. */
+ s->migration_state = MIGRATION_MIGRATED;
+ }
+}
+
+static VMStateDescription bulk_in_vmstate = {
+ .name = "CCID BulkIn state",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BUFFER(data, BulkIn),
+ VMSTATE_UINT32(len, BulkIn),
+ VMSTATE_UINT32(pos, BulkIn),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static VMStateDescription answer_vmstate = {
+ .name = "CCID Answer state",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(slot, Answer),
+ VMSTATE_UINT8(seq, Answer),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static VMStateDescription usb_device_vmstate = {
+ .name = "usb_device",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(addr, USBDevice),
+ VMSTATE_BUFFER(setup_buf, USBDevice),
+ VMSTATE_BUFFER(data_buf, USBDevice),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static VMStateDescription ccid_vmstate = {
+ .name = CCID_DEV_NAME,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = ccid_post_load,
+ .pre_save = ccid_pre_save,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(dev, USBCCIDState, 1, usb_device_vmstate, USBDevice),
+ VMSTATE_UINT8(debug, USBCCIDState),
+ VMSTATE_BUFFER(bulk_out_data, USBCCIDState),
+ VMSTATE_UINT32(bulk_out_pos, USBCCIDState),
+ VMSTATE_UINT8(bmSlotICCState, USBCCIDState),
+ VMSTATE_UINT8(powered, USBCCIDState),
+ VMSTATE_UINT8(notify_slot_change, USBCCIDState),
+ VMSTATE_UINT64(last_answer_error, USBCCIDState),
+ VMSTATE_UINT8(bError, USBCCIDState),
+ VMSTATE_UINT8(bmCommandStatus, USBCCIDState),
+ VMSTATE_UINT8(bProtocolNum, USBCCIDState),
+ VMSTATE_BUFFER(abProtocolDataStructure, USBCCIDState),
+ VMSTATE_UINT32(ulProtocolDataStructureSize, USBCCIDState),
+ VMSTATE_STRUCT_ARRAY(bulk_in_pending, USBCCIDState,
+ BULK_IN_PENDING_NUM, 1, bulk_in_vmstate, BulkIn),
+ VMSTATE_UINT32(bulk_in_pending_start, USBCCIDState),
+ VMSTATE_UINT32(bulk_in_pending_end, USBCCIDState),
+ VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState,
+ PENDING_ANSWERS_NUM, 1, answer_vmstate, Answer),
+ VMSTATE_UINT32(pending_answers_num, USBCCIDState),
+ VMSTATE_UINT8(migration_state, USBCCIDState),
+ VMSTATE_UINT32(state_vmstate, USBCCIDState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static struct USBDeviceInfo ccid_info = {
+ .product_desc = "QEMU USB CCID",
+ .qdev.name = CCID_DEV_NAME,
+ .qdev.desc = "CCID Rev 1.1 smartcard reader",
+ .qdev.size = sizeof(USBCCIDState),
+ .init = ccid_initfn,
+ .handle_packet = usb_generic_handle_packet,
+ .handle_reset = ccid_handle_reset,
+ .handle_control = ccid_handle_control,
+ .handle_data = ccid_handle_data,
+ .handle_destroy = ccid_handle_destroy,
+ .usbdevice_name = "ccid",
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+ .qdev.vmsd = &ccid_vmstate,
+};
+
+static void ccid_register_devices(void)
+{
+ usb_qdev_register(&ccid_info);
+}
+device_init(ccid_register_devices)
--
1.7.4.1
next prev parent reply other threads:[~2011-02-23 12:05 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-23 11:20 [Qemu-devel] [PATCH v20 0/7] usb-ccid Alon Levy
2011-02-23 11:20 ` Alon Levy [this message]
2011-03-14 13:54 ` [Qemu-devel] [PATCH 1/7] usb-ccid: add CCID bus Jes Sorensen
2011-03-14 14:07 ` Daniel P. Berrange
2011-03-14 14:12 ` Anthony Liguori
2011-03-16 9:15 ` Alon Levy
2011-03-16 9:26 ` Jes Sorensen
2011-02-23 11:20 ` [Qemu-devel] [PATCH 2/7] introduce libcacard/vscard_common.h Alon Levy
2011-03-14 14:01 ` Jes Sorensen
2011-03-14 14:51 ` Alon Levy
2011-03-14 14:52 ` Alon Levy
2011-03-14 15:50 ` Jes Sorensen
2011-03-14 16:31 ` Alon Levy
2011-02-23 11:20 ` [Qemu-devel] [PATCH 3/7] ccid: add passthru card device Alon Levy
2011-03-14 14:04 ` Jes Sorensen
2011-03-14 14:53 ` Alon Levy
2011-03-14 15:51 ` Jes Sorensen
2011-02-23 11:20 ` [Qemu-devel] [PATCH 4/7] libcacard: initial commit Alon Levy
2011-03-14 15:20 ` Jes Sorensen
2011-03-14 16:40 ` Alon Levy
2011-03-15 12:42 ` Jes Sorensen
2011-03-15 13:14 ` Alon Levy
2011-03-15 13:40 ` Jes Sorensen
2011-03-15 14:09 ` Alon Levy
2011-03-15 13:45 ` Anthony Liguori
2011-03-15 14:23 ` Alon Levy
2011-03-16 8:23 ` Jes Sorensen
2011-03-16 8:40 ` Alon Levy
2011-03-16 8:42 ` Jes Sorensen
2011-03-15 13:44 ` Anthony Liguori
2011-03-15 14:25 ` Alon Levy
2011-03-15 14:51 ` Jes Sorensen
2011-03-15 14:56 ` Anthony Liguori
2011-03-15 14:59 ` Jes Sorensen
2011-03-15 15:14 ` Alon Levy
2011-03-16 8:26 ` Jes Sorensen
2011-03-15 14:55 ` Anthony Liguori
2011-03-17 13:36 ` Alon Levy
2011-02-23 11:20 ` [Qemu-devel] [PATCH 5/7] ccid: add ccid-card-emulated device Alon Levy
2011-03-14 15:41 ` Jes Sorensen
2011-03-14 16:44 ` Alon Levy
2011-03-14 17:11 ` Jes Sorensen
2011-03-17 10:54 ` Alon Levy
2011-03-17 10:59 ` Alon Levy
2011-03-17 14:25 ` Jes Sorensen
2011-02-23 11:20 ` [Qemu-devel] [PATCH 6/7] ccid: add docs Alon Levy
2011-03-14 15:41 ` Jes Sorensen
2011-02-23 11:20 ` [Qemu-devel] [PATCH 7/7] ccid: configure: improve --enable-smartcard flags Alon Levy
2011-03-14 15:44 ` Jes Sorensen
2011-03-06 10:50 ` [Qemu-devel] [PATCH v20 0/7] usb-ccid Alon Levy
-- strict thread matches above, loose matches on Subject: below --
2011-02-07 16:34 [Qemu-devel] [PATCH 0/7] usb-ccid (v19) Alon Levy
2011-02-07 16:34 ` [Qemu-devel] [PATCH 1/7] usb-ccid: add CCID bus Alon Levy
2011-02-22 16:03 ` Anthony Liguori
2011-02-23 15:10 ` Alon Levy
2011-01-11 8:42 [Qemu-devel] [PATCH 0/7] usb-ccid (v15) Alon Levy
2011-01-11 8:42 ` [Qemu-devel] [PATCH 1/7] usb-ccid: add CCID bus Alon Levy
2011-01-11 8:38 [Qemu-devel] [PATCH 0/7] usb-ccid (v14) Alon Levy
2011-01-11 8:38 ` [Qemu-devel] [PATCH 1/7] usb-ccid: add CCID bus Alon Levy
2011-01-25 14:10 ` Anthony Liguori
2011-01-25 16:10 ` Alon Levy
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