[PATCH] pcsc pinpad support (part 2)

[NIIBE Yutaka]

Here is the part 2.

It does same pininfo condition check like ccid_transceive_secure in
ccid-driver.c does.


2011-01-13  NIIBE Yutaka  <gniibe at fsij.org>

	* apdu.c (pcsc_pinpad_verify): New.

---
 scd/apdu.c |   72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 72 insertions(+), 0 deletions(-)

diff --git a/scd/apdu.c b/scd/apdu.c
index 4942d05..bc75dc9 100644
--- a/scd/apdu.c
+++ b/scd/apdu.c
@@ -2025,6 +2025,78 @@ check_pcsc_keypad (int slot, int command, int pin_mode,

   goto check_again;
 }
+
+
+#define PIN_VERIFY_STRUCTURE_SIZE 23
+static int
+pcsc_pinpad_verify (int slot, int class, int ins, int p0, int p1,
+                    struct pininfo_s *pininfo)
+{
+  int sw;
+  unsigned char *pin_verify;
+  unsigned long len = PIN_VERIFY_STRUCTURE_SIZE;
+  unsigned char result[2];
+  size_t resultlen = 2;
+
+  if (!reader_table[slot].atrlen
+      && (sw = reset_pcsc_reader (slot)))
+    return sw;
+
+  if (pininfo->mode != 1)
+    return SW_NOT_SUPPORTED;
+
+  if (pininfo->padlen != 0)
+    return SW_NOT_SUPPORTED;
+
+  if (!pininfo->minlen)
+    pininfo->minlen = 1;
+  if (!pininfo->maxlen)
+    pininfo->maxlen = 25;
+
+  /* Note that the 25 is the maximum value the SPR532 allows.  */
+  if (pininfo->minlen < 1 || pininfo->minlen > 25
+      || pininfo->maxlen < 1 || pininfo->maxlen > 25
+      || pininfo->minlen > pininfo->maxlen)
+    return SW_HOST_INV_VALUE;
+
+  pin_verify = xtrymalloc (len);
+  if (!pin_verify)
+    return SW_HOST_OUT_OF_CORE;
+
+  pin_verify[0] = 0x00; /* bTimerOut */
+  pin_verify[1] = 0x00; /* bTimerOut2 */
+  pin_verify[2] = 0x82; /* bmFormatString: Byte, pos=0, left, ASCII. */
+  pin_verify[3] = 0x00; /* bmPINBlockString */
+  pin_verify[4] = 0x00; /* bmPINLengthFormat */
+  pin_verify[5] = pininfo->maxlen; /* wPINMaxExtraDigit */
+  pin_verify[6] = pininfo->minlen; /* wPINMaxExtraDigit */
+  pin_verify[7] = 0x02; /* bEntryValidationCondition: Validation key pressed */
+  if (pininfo->minlen && pininfo->maxlen && pininfo->minlen == pininfo->maxlen)
+    pin_verify[7] |= 0x01; /* Max size reached.  */
+  pin_verify[8] = 0xff; /* bNumberMessage: Default */
+  pin_verify[9] =  0x09; /* wLangId: 0x0409: US English */
+  pin_verify[10] = 0x04; /* wLangId: 0x0409: US English */
+  pin_verify[11] = 0x00; /* bMsgIndex */
+  pin_verify[12] = 0x00; /* bTeoPrologue[0] */
+  pin_verify[13] = 0x00; /* bTeoPrologue[1] */
+  pin_verify[14] = 0x00; /* bTeoPrologue[2] */
+  pin_verify[15] = 0x04; /* ulDataLength */
+  pin_verify[16] = 0x00; /* ulDataLength */
+  pin_verify[17] = 0x00; /* ulDataLength */
+  pin_verify[18] = 0x00; /* ulDataLength */
+  pin_verify[19] = class; /* abData[0] */
+  pin_verify[20] = ins; /* abData[1] */
+  pin_verify[21] = p0; /* abData[2] */
+  pin_verify[22] = p1; /* abData[3] */
+
+  sw = control_pcsc (slot, reader_table[slot].pcsc.verify_ioctl,
+                     pin_verify, len, result, &resultlen);
+  xfree (pin_verify);
+  if (sw || resultlen < 2)
+    return sw? sw : SW_HOST_INCOMPLETE_CARD_RESPONSE;
+  sw = (result[resultlen-2] << 8) | result[resultlen-1];
+  return sw;
+}
 
 #ifdef HAVE_LIBUSB
 /*
-- 
1.7.2.3