* [Qemu-devel] [PATCH 2/2] usb-ccid: add CCID device (device itself)
2010-10-05 21:32 [Qemu-devel] [PATCH 0/2] USB CCID device Alon Levy
2010-10-05 21:32 ` [Qemu-devel] [PATCH 1/2] usb-ccid: add CCID device. add configure option Alon Levy
@ 2010-10-05 21:33 ` Alon Levy
2010-10-05 23:02 ` [Qemu-devel] [PATCH 0/2] USB CCID device Anthony Liguori
2 siblings, 0 replies; 5+ messages in thread
From: Alon Levy @ 2010-10-05 21:33 UTC (permalink / raw)
To: qemu-devel, alevy
A CCID device is a smart card reader. It is a USB device, defined at [2].
The usb-ccid device expects a chardev option and uses the VSCARD protocol
defined in vscard_common.h. It starts as an unattached device
unless auto_attach=1.
The utility vscclient, bundled with libcac_card, provides the client side,
together they provide simultaneous access to the card reader an
the card attached to it, both in the guest and client machines, as opposed t
a simple usb host passthrough. You can also use it to provide a virtual card
[1] libcac_card http://cgit.freedesktop.org/~alon/cac_card (temporary home)
written by Robert Relyea <rrelyea@redhat.com>
[2] http://www.usb.org/developers/devclass_docs/DWG_Smart-Card_CCID_Rev110.
Signed-off-by: Alon Levy <alevy@redhat.com>
---
hw/usb-ccid.c | 1241 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 1241 insertions(+), 0 deletions(-)
diff --git a/hw/usb-ccid.c b/hw/usb-ccid.c
index 98805bb..cc4d6d1 100644
--- a/hw/usb-ccid.c
+++ b/hw/usb-ccid.c
@@ -11,3 +11,1244 @@
* This code is licenced under the LGPL.
*/
+/* References:
+ *
+ * CCID Specification Revision 1.1 April 22nd 2005
+ * "Universal Serial Bus, Device Class: Smart Card"
+ * Specification for Integrated Circuit(s) Cards Interface Devices
+ *
+ * KNOWN BUGS
+ * 1. remove/insert can sometimes result in removed state instead of inserted.
+ * 2. if the chardev connection drops we don't get any notification. this can leave us in a state where there is a reader attached. this will cause vscclient to fail when it starts again since it will get VSC_Error in response to VSC_ReaderAdd. The correct fix is flow control. There is a trivial fix using chrdev ioctls, but it has not been accepted upstream.
+ *
+ */
+
+#include "qemu-common.h"
+#include "qemu-error.h"
+#include "usb.h"
+#include "qemu-char.h"
+
+#include "hw/vscard_common.h"
+
+static int debug = 0;
+
+#define DPRINTF(fmt, ...) \
+do { if (debug) { printf("usb-ccid: " fmt , ## __VA_ARGS__); } } while (0)
+
+#define RECV_BUF 384
+#define BULK_IN_FREE_START_NUM 5
+
+#define DeviceOutVendor ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
+#define DeviceInVendor ((USB_DIR_IN |USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8)
+
+#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__)) {
+ uint8_t bMessageType;
+ uint32_t dwLength;
+ uint8_t bSlot;
+ uint8_t bSeq;
+} CCID_Header;
+
+typedef struct __attribute__ ((__packed__)) {
+ 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_BULK_IN b;
+ uint8_t bClockStatus;
+} CCID_SlotStatus;
+
+typedef struct __attribute__ ((__packed__)) {
+ CCID_BULK_IN b;
+ uint8_t bProtocolNum;
+ uint8_t abProtocolDataStructure[0];
+} CCID_Parameter;
+
+typedef struct __attribute__ ((__packed__)) {
+ 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_Header hdr;
+ uint8_t bBWI; /* Block Waiting Timeout */
+ uint16_t wLevelParameter;
+ uint8_t abData[0];
+} CCID_XferBlock;
+
+typedef struct __attribute__ ((__packed__)) {
+ CCID_Header hdr;
+ uint8_t bPowerSelect;
+ uint16_t abRFU;
+} CCID_IccPowerOn;
+
+typedef struct __attribute__ ((__packed__)) {
+ CCID_Header hdr;
+ uint16_t abRFU;
+} CCID_IccPowerOff;
+
+typedef struct __attribute__ ((__packed__)) {
+ CCID_Header hdr;
+ uint8_t bProtocolNum;
+ uint8_t abProtocolDataStructure[0];
+} CCID_SetParameter;
+
+typedef struct {
+ uint8_t bMessageType; /* CCID_MESSAGE_TYPE_RDR_to_PC_NotifySlotChange */
+ uint8_t bmSlotICCState;
+} CCID_Notify_Slot_Change;
+
+#define MAX_ATR_SIZE 40
+#define MAX_PROTOCOL_SIZE 7
+
+/* used for DataBlock response to XferBlock */
+typedef struct answer_t {
+ uint8_t slot;
+ uint8_t seq;
+ QSIMPLEQ_ENTRY(answer_t) entry;
+} answer_t;
+
+/* pending bulk_in messages */
+typedef struct bulk_in_t {
+ uint8_t* data;
+ int len;
+ int pos;
+ QSIMPLEQ_ENTRY(bulk_in_t) entry;
+} bulk_in_t;
+
+/**
+ * powered - defaults to true, changed by PowerOn/PowerOff messages
+ */
+typedef struct {
+ USBDevice dev;
+ CharDriverState *cs;
+ uint8_t debug;
+ uint8_t auto_attach;
+ uint8_t atr[MAX_ATR_SIZE];
+ uint8_t atr_length;
+ QSIMPLEQ_HEAD(bulk_in, bulk_in_t) bulk_in_pending;
+ QSIMPLEQ_HEAD(bulk_in_free, bulk_in_t) bulk_in_free;
+ bulk_in_t *current_bulk_in;
+ uint8_t* bulk_out_data;
+ uint32_t bulk_out_len;
+ uint32_t bulk_out_pos;
+ uint8_t* vscard_in_data;
+ uint32_t vscard_in_pos;
+ uint32_t vscard_in_hdr;
+ uint32_t vscard_in_len;
+ uint8_t bmSlotICCState;
+ bool powered;
+ bool notify_slot_change;
+ uint64_t last_answer_error;
+ QSIMPLEQ_HEAD(pending_answers, answer_t) pending_answers;
+ uint8_t bError;
+ uint8_t bmCommandStatus;
+ uint8_t bProtocolNum;
+ uint8_t abProtocolDataStructure[MAX_PROTOCOL_SIZE];
+ uint32_t ulProtocolDataStructureSize;
+} USBCCIDState;
+
+/* Slot specific variables. We emulate a single slot card reader.
+ */
+
+uint8_t DEFAULT_ATR[] = {
+/* From some example somewhere
+ 0x3B, 0xB0, 0x18, 0x00, 0xD1, 0x81, 0x05, 0xB1, 0x40, 0x38, 0x1F, 0x03, 0x28
+ */
+
+/* From an Athena smart card */
+ 0x3B, 0xD5, 0x18, 0xFF, 0x80, 0x91, 0xFE, 0x1F, 0xC3, 0x80, 0x73, 0xC8, 0x21, 0x13, 0x08
+
+}; /* maximum size of ATR - from 7816-3 */
+
+
+/* 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; */
+ 0x80, /* 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, 0x01, 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 */
+ 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
+ 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 !QSIMPLEQ_EMPTY(&s->pending_answers);
+}
+
+static void ccid_clear_pending_answers(USBCCIDState *s)
+{
+ answer_t *answer;
+
+ QSIMPLEQ_FOREACH(answer, &s->pending_answers, entry) {
+ qemu_free(answer);
+ }
+ QSIMPLEQ_INIT(&s->pending_answers);
+}
+
+static void ccid_print_pending_answers(USBCCIDState *s)
+{
+#ifdef DEBUG_CCID
+ answer_t *answer;
+
+ printf("usb-ccid: pending answers:");
+ if (!ccid_has_pending_answers(s)) {
+ printf(" empty\n");
+ return;
+ }
+ QSIMPLEQ_FOREACH(answer, &s->pending_answers, entry) {
+ if (QSIMPLEQ_NEXT(answer, entry) == NULL) {
+ printf("%d:%d\n", answer->slot, answer->seq);
+ } else {
+ printf("%d:%d,", answer->slot, answer->seq);
+ }
+ }
+#endif
+}
+
+static void ccid_add_pending_answer(USBCCIDState *s, CCID_Header *hdr)
+{
+ answer_t* answer;
+
+ answer = qemu_mallocz(sizeof(answer_t));
+ answer->slot = hdr->bSlot;
+ answer->seq = hdr->bSeq;
+ QSIMPLEQ_INSERT_TAIL(&s->pending_answers, answer, entry);
+ ccid_print_pending_answers(s);
+}
+
+static void ccid_remove_pending_answer(USBCCIDState *s,
+ uint8_t *slot, uint8_t *seq)
+{
+ answer_t *answer;
+
+ answer = QSIMPLEQ_FIRST(&s->pending_answers);
+ *slot = answer->slot;
+ *seq = answer->seq;
+ QSIMPLEQ_REMOVE_HEAD(&s->pending_answers, entry);
+ qemu_free(answer);
+ ccid_print_pending_answers(s);
+}
+
+static void ccid_bulk_in_clear(USBCCIDState *s)
+{
+ bulk_in_t* bulk_in;
+
+ while (!QSIMPLEQ_EMPTY(&s->bulk_in_pending)) {
+ bulk_in = QSIMPLEQ_FIRST(&s->bulk_in_pending);
+ QSIMPLEQ_REMOVE_HEAD(&s->bulk_in_pending, entry);
+ QSIMPLEQ_INSERT_TAIL(&s->bulk_in_free, bulk_in, entry);
+ }
+}
+
+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);
+ if (s->auto_attach == 0 && s->dev.attached) {
+ usb_device_detach(&s->dev);
+ }
+}
+
+static void ccid_handle_reset(USBDevice *dev)
+{
+ USBCCIDState *s = (USBCCIDState *)dev;
+
+ DPRINTF("Reset\n");
+
+ ccid_reset(s);
+}
+
+static int ccid_handle_control(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data)
+{
+ int ret = 0;
+
+ DPRINTF("got control %x, value %x\n",request, value);
+ switch (request) {
+ case DeviceRequest | USB_REQ_GET_STATUS:
+ data[0] = (0 << 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 DeviceOutVendor | CCID_CONTROL_ABORT:
+ DPRINTF("ccid_control abort UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ case DeviceOutVendor | CCID_CONTROL_GET_CLOCK_FREQUENCIES:
+ DPRINTF("ccid_control get clock frequencies UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ case DeviceOutVendor | CCID_CONTROL_GET_DATA_RATES:
+ DPRINTF("ccid_control get data rates UNIMPLEMENTED\n");
+ ret = USB_RET_STALL;
+ break;
+ default:
+ fail:
+ DPRINTF("got unsupported/bogus control %x, value %x\n", request, value);
+ ret = USB_RET_STALL;
+ break;
+ }
+ return ret;
+}
+
+static void ccid_bulk_in_release(USBCCIDState *s)
+{
+ s->current_bulk_in->pos = 0;
+ s->current_bulk_in->len = RECV_BUF;
+ QSIMPLEQ_INSERT_TAIL(&s->bulk_in_free, s->current_bulk_in, entry);
+ s->current_bulk_in = NULL;
+}
+
+static void ccid_bulk_in_get(USBCCIDState *s)
+{
+ if (s->current_bulk_in != NULL || QSIMPLEQ_EMPTY(&s->bulk_in_pending)) {
+ return;
+ }
+ s->current_bulk_in = QSIMPLEQ_FIRST(&s->bulk_in_pending);
+ QSIMPLEQ_REMOVE_HEAD(&s->bulk_in_pending, entry);
+}
+
+static uint8_t* ccid_reserve_recv_buf(USBCCIDState* s, uint16_t len)
+{
+ bulk_in_t* bulk_in;
+
+ DPRINTF("%s: QUEUE: reserve %d bytes\n", __func__, len);
+
+ /* look for an existing element */
+ if (len > RECV_BUF) {
+ printf("usb-ccid.c: %s: len larger then max (%d>%d). bailing out.\n",
+ __func__, len, RECV_BUF);
+ exit(-1);
+ }
+ if (QSIMPLEQ_EMPTY(&s->bulk_in_free)) {
+ printf("usb-ccid.c: %s: No buffers in bulk_in_free. discarding message.\n",
+ __func__);
+ return NULL;
+ }
+ bulk_in = QSIMPLEQ_FIRST(&s->bulk_in_free);
+ QSIMPLEQ_REMOVE_HEAD(&s->bulk_in_free, entry);
+ QSIMPLEQ_INSERT_TAIL(&s->bulk_in_pending, bulk_in, entry);
+ bulk_in->len = len;
+ return bulk_in->data;
+}
+
+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);
+#ifdef DEBUG_CCID
+ DPRINTF("status = %d\n", ret);
+#endif
+ 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_SlotStatus*)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_Parameter *)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;
+
+ p = (CCID_DataBlock*)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 = len;
+ p->b.hdr.bSlot = slot;
+ p->b.hdr.bSeq = seq;
+ p->b.bStatus = ccid_calc_status(s);
+ p->b.bError = s->bError;
+#ifdef DEBUG_CCID
+ if (p->b.bError) {
+ DPRINTF("error %d", p->b.bError);
+ }
+#endif
+ 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)
+{
+ ccid_write_data_block(s, recv->bSlot, recv->bSeq, s->atr, s->atr_length);
+}
+
+static void ccid_set_parameters(USBCCIDState *s, CCID_Header *recv)
+{
+ CCID_SetParameter *ph = (CCID_SetParameter *) recv;
+ uint32_t len = 0;
+ if (ph->bProtocolNum == 0) {
+ len = 5;
+ }
+ if (ph->bProtocolNum == 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: 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);
+}
+
+/* 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_vscard_send_msg(
+ USBCCIDState *s, VSCMsgType type, reader_id_t reader_id,
+ uint8_t* payload, uint32_t length)
+{
+ VSCMsgHeader scr_msg_header;
+
+ scr_msg_header.type = type;
+ scr_msg_header.reader_id = reader_id;
+ scr_msg_header.length = length;
+ qemu_chr_write(s->cs, (uint8_t*)&scr_msg_header, sizeof(VSCMsgHeader));
+ qemu_chr_write(s->cs, payload, length);
+}
+
+static void ccid_vscard_send_apdu(
+ USBCCIDState *s, uint8_t* apdu, uint32_t length)
+{
+ ccid_vscard_send_msg(s, VSC_APDU, VSCARD_MINIMAL_READER_ID, apdu, length);
+}
+
+static void ccid_vscard_send_error(
+ USBCCIDState *s, reader_id_t reader_id, VSCErrorCode code)
+{
+ VSCMsgError msg = {.code=code};
+
+ ccid_vscard_send_msg(s, VSC_Error, reader_id, (uint8_t*)&msg, sizeof(msg));
+}
+
+static void ccid_vscard_send_init(USBCCIDState *s)
+{
+ VSCMsgInit msg = {.version=VSCARD_VERSION};
+
+ ccid_vscard_send_msg(s, VSC_Init, VSCARD_UNDEFINED_READER_ID,
+ (uint8_t*)&msg, sizeof(msg));
+}
+
+static void ccid_on_apdu_from_guest(USBCCIDState *s, CCID_XferBlock *recv)
+{
+ if (!s->cs) {
+ printf("usb-ccid: discarding apdu length %d\n", recv->hdr.dwLength);
+ return;
+ }
+ if (ccid_card_status(s) != ICC_STATUS_PRESENT_ACTIVE) {
+ DPRINTF("usb-ccid: not sending apdu to client, no card connected\n");
+ ccid_write_data_block_error(s, recv->hdr.bSlot, recv->hdr.bSeq);
+ return;
+ }
+ DPRINTF("%s: seq %d, len %d\n", __FUNCTION__,
+ recv->hdr.bSeq, recv->hdr.dwLength);
+ ccid_add_pending_answer(s, (CCID_Header*)recv);
+ ccid_vscard_send_apdu(s, recv->abData, recv->hdr.dwLength);
+}
+
+static void ccid_handle_bulk_out(USBCCIDState *s, USBPacket *p)
+{
+ CCID_Header* ccid_header;
+
+ if (p->len + s->bulk_out_pos > s->bulk_out_len) {
+ s->bulk_out_len = MAX(p->len + s->bulk_out_pos, s->bulk_out_len*2);
+ s->bulk_out_data = realloc(s->bulk_out_data, s->bulk_out_len);
+ assert(s->bulk_out_data != NULL);
+ }
+ 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 == 64) {
+ DPRINTF("usb-ccid: bulk_in: expecting more packets (%d/%d)\n",
+ p->len, ccid_header->dwLength);
+ return;
+ }
+ if (s->bulk_out_pos < 10) {
+ DPRINTF("handle_data: bad USB_TOKEN_OUT length, should be at least 10 bytes\n");
+ } else {
+ DPRINTF("handle_data %x\n", 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:
+ /* We need to send an ATR back */
+ DPRINTF("PowerOn: %d\n",
+ ((CCID_IccPowerOn*)(ccid_header))->bPowerSelect);
+ s->powered = true;
+ ccid_write_data_block_atr(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_IccPowerOff:
+ DPRINTF("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:
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ ccid_set_parameters(s, ccid_header);
+ ccid_write_parameters(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_ResetParameters:
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ ccid_reset_parameters(s);
+ ccid_write_parameters(s, ccid_header);
+ break;
+ case CCID_MESSAGE_TYPE_PC_to_RDR_GetParameters:
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ ccid_write_parameters(s, ccid_header);
+ break;
+ default:
+ DPRINTF("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 */
+ s->bmCommandStatus = COMMAND_STATUS_FAILED;
+ s->bError = ERROR_CMD_NOT_SUPPORTED;
+ ccid_write_slot_status(s, ccid_header);
+ break;
+ }
+ }
+ s->bulk_out_pos = 0;
+}
+
+static int ccid_bulk_in_copy_out(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;
+ }
+ DPRINTF("%s: %d/%d req/act to guest (BULK_IN)\n", __func__, len, ret);
+ return ret;
+}
+
+static int ccid_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBCCIDState *s = (USBCCIDState *)dev;
+ int ret = 0;
+ uint8_t *data = p->data;
+ int len = p->len;
+
+ switch (p->pid) {
+ case USB_TOKEN_OUT:
+ 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_out(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("handle_data: int_in: notify_slot_change %X\n",
+ s->bmSlotICCState);
+ }
+ break;
+ default:
+ DPRINTF("Bad endpoint\n");
+ break;
+ }
+ break;
+ default:
+ DPRINTF("Bad token\n");
+ ret = USB_RET_STALL;
+ break;
+ }
+
+ return ret;
+}
+
+static void ccid_handle_destroy(USBDevice *dev)
+{
+ USBCCIDState *s = (USBCCIDState *)dev;
+ bulk_in_t* bulk_in;
+
+ if (s->cs) {
+ qemu_chr_close(s->cs);
+ }
+ free(s->bulk_out_data);
+ free(s->vscard_in_data);
+ ccid_bulk_in_clear(s);
+ QSIMPLEQ_FOREACH(bulk_in, &s->bulk_in_free, entry) {
+ qemu_free(bulk_in->data);
+ qemu_free(bulk_in);
+ }
+}
+
+/* APDU chardev */
+
+static int ccid_vscard_can_read(void *opaque)
+{
+ return 65535;
+}
+
+static void ccid_vscard_handle_message(USBCCIDState *s,
+ VSCMsgHeader* scr_msg_header)
+{
+ uint8_t *data = (uint8_t*)&scr_msg_header[1];
+ answer_t *answer;
+
+ switch (scr_msg_header->type) {
+ case VSC_ATR:
+ DPRINTF("VSC_ATR %d\n", scr_msg_header->length);
+ assert(scr_msg_header->length <= MAX_ATR_SIZE);
+ memcpy(s->atr, data, scr_msg_header->length);
+ s->atr_length = scr_msg_header->length;
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ if (ccid_has_pending_answers(s)) {
+ ccid_write_data_block_answer(s, NULL, 0);
+ }
+ ccid_on_slot_change(s, true);
+ break;
+ case VSC_APDU:
+ if (!ccid_has_pending_answers(s)) {
+ DPRINTF("VSC_APDU: ERROR: got an APDU without pending answers\n");
+ break;
+ }
+ s->bmCommandStatus = COMMAND_STATUS_NO_ERROR;
+ answer = QSIMPLEQ_FIRST(&s->pending_answers);
+ if (answer == NULL) {
+ abort();
+ }
+ DPRINTF("VSC_APDU %d (answer seq %d, slot %d)\n",
+ scr_msg_header->length,
+ answer->seq, answer->slot);
+ ccid_write_data_block_answer(s, data, scr_msg_header->length);
+ break;
+ case VSC_CardRemove:
+ DPRINTF("VSC_CardRemove\n");
+ ccid_on_slot_change(s, false);
+ if (ccid_has_pending_answers(s)) {
+ ccid_write_data_block_answer(s, NULL, 0);
+ }
+ ccid_reset(s);
+ break;
+ case VSC_Init:
+ break;
+ case VSC_Error:
+ s->bmCommandStatus = COMMAND_STATUS_FAILED;
+ s->last_answer_error = *(uint64_t*)data;
+ DPRINTF("VSC_Error: %lX\n", s->last_answer_error);
+ ccid_write_data_block_answer(s, NULL, 0);
+ break;
+ case VSC_ReaderAdd:
+ DPRINTF("VSC_ReaderAdd\n");
+ if (s->auto_attach==0 && !s->dev.attached) {
+ usb_device_attach(&s->dev);
+ ccid_vscard_send_msg(s, VSC_ReaderAddResponse,
+ VSCARD_MINIMAL_READER_ID, NULL, 0);
+ } else {
+ ccid_vscard_send_error(s, VSCARD_UNDEFINED_READER_ID,
+ VSC_CANNOT_ADD_MORE_READERS);
+ }
+ break;
+ case VSC_ReaderRemove:
+ DPRINTF("VSC_ReaderRemove\n");
+ if (ccid_card_inserted(s)) {
+ ccid_on_slot_change(s, false);
+ ccid_clear_pending_answers(s);
+ }
+ if (s->auto_attach == 0 && s->dev.attached) {
+ usb_device_detach(&s->dev);
+ }
+ break;
+ default:
+ printf("usb-ccid: chardev: unexpected message of type %X\n",
+ scr_msg_header->type);
+ ccid_vscard_send_error(s, scr_msg_header->reader_id,
+ VSC_GENERAL_ERROR);
+ }
+}
+
+static void ccid_vscard_read(void *opaque, const uint8_t *buf, int size)
+{
+ USBCCIDState *s = opaque;
+ VSCMsgHeader *hdr;
+
+ if (s->vscard_in_pos + size > s->vscard_in_len) {
+ s->vscard_in_len = MAX(s->vscard_in_pos + size, s->vscard_in_len * 2);
+ s->vscard_in_data = realloc(s->vscard_in_data, s->vscard_in_len);
+ assert(s->vscard_in_data);
+ }
+ memcpy(s->vscard_in_data + s->vscard_in_pos, buf, size);
+ s->vscard_in_pos += size;
+ hdr = (VSCMsgHeader*)(s->vscard_in_data + s->vscard_in_hdr);
+
+ while ((s->vscard_in_pos - s->vscard_in_hdr >= sizeof(VSCMsgHeader)) &&
+ (s->vscard_in_pos - s->vscard_in_hdr - sizeof(VSCMsgHeader) >=
+ hdr->length))
+ {
+ ccid_vscard_handle_message(s, hdr);
+ s->vscard_in_hdr += hdr->length + sizeof(VSCMsgHeader);
+ hdr = (VSCMsgHeader*)(s->vscard_in_data + s->vscard_in_hdr);
+ }
+ if (s->vscard_in_hdr == s->vscard_in_pos) {
+ s->vscard_in_pos = s->vscard_in_hdr = 0;
+ }
+}
+
+static void ccid_vscard_event(void *opaque, int event)
+{
+ USBCCIDState *s = opaque;
+ switch (event) {
+ case CHR_EVENT_BREAK:
+ break;
+ case CHR_EVENT_FOCUS:
+ break;
+ case CHR_EVENT_OPENED:
+ DPRINTF("%s: CHR_EVENT_OPENED\n", __func__);
+ ccid_detach(s);
+ break;
+ }
+}
+
+static int ccid_initfn(USBDevice *dev)
+{
+ USBCCIDState *s = DO_UPCAST(USBCCIDState, dev, dev);
+ int i;
+ bulk_in_t* bulk_in;
+
+ debug = s->debug;
+ dev->auto_attach = s->auto_attach;
+ s->dev.speed = USB_SPEED_FULL;
+ s->notify_slot_change = false;
+ s->powered = true;
+ QSIMPLEQ_INIT(&s->pending_answers);
+ s->last_answer_error = 0;
+ QSIMPLEQ_INIT(&s->bulk_in_pending);
+ QSIMPLEQ_INIT(&s->bulk_in_free);
+ for (i = 0 ; i < BULK_IN_FREE_START_NUM ; ++i) {
+ bulk_in = qemu_mallocz(sizeof(bulk_in_t));
+ bulk_in->data = qemu_mallocz(RECV_BUF);
+ bulk_in->len = RECV_BUF;
+ bulk_in->pos = 0;
+ QSIMPLEQ_INSERT_TAIL(&s->bulk_in_free, bulk_in, entry);
+ }
+ s->current_bulk_in = NULL;
+ ccid_reset_error_status(s);
+ assert(sizeof(DEFAULT_ATR) <= MAX_ATR_SIZE);
+ memcpy(s->atr, DEFAULT_ATR, sizeof(DEFAULT_ATR));
+ s->atr_length = sizeof(DEFAULT_ATR);
+ s->bulk_out_data = malloc(sizeof(VSCMsgHeader));
+ s->bulk_out_len = sizeof(VSCMsgHeader);
+ s->bulk_out_pos = 0;
+ s->vscard_in_data = NULL;
+ s->vscard_in_len = 0;
+ s->vscard_in_pos = 0;
+ s->vscard_in_hdr = 0;
+ if (s->cs) {
+ DPRINTF("initing chardev\n");
+ qemu_chr_add_handlers(s->cs,
+ ccid_vscard_can_read,
+ ccid_vscard_read,
+ ccid_vscard_event, s);
+#ifdef USB_CCID_USE_IOCTL
+ qemu_chr_ioctl(s->cs, CHR_IOCTL_VIRT_SERIAL_OPEN, NULL);
+#endif
+ ccid_vscard_send_init(s);
+ }
+ ccid_reset_parameters(s);
+ ccid_reset(s);
+ return 0;
+}
+
+static struct USBDeviceInfo ccid_info = {
+ .product_desc = "QEMU USB CCID",
+ .qdev.name = "usb-ccid",
+ .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_CHR("chardev", USBCCIDState, cs),
+ DEFINE_PROP_UINT8("auto_attach", USBCCIDState, auto_attach, 0),
+ DEFINE_PROP_UINT8("debug", USBCCIDState, debug, 0),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+};
+
+static void ccid_register_devices(void)
+{
+ usb_qdev_register(&ccid_info);
+}
+device_init(ccid_register_devices)
--
1.7.3.1
^ permalink raw reply related [flat|nested] 5+ messages in thread