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(apdu_open_reader): No fallback if a full CCID reader id has been
Removed test code from ccid-driver.c
This commit is contained in:
Werner Koch
parent
f08c4222b7
commit
ca26884b3a
@ -6,6 +6,8 @@
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* apdu.c (open_ccid_reader): New arg PORTSTR. Pass it to
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ccid_open_reader.
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(apdu_open_reader): Pass portstr to open_ccid_reader.
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(apdu_open_reader): No fallback if a full CCID reader id has been
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given.
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* ccid-driver.c (ccid_get_reader_list): New.
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(ccid_open_reader): Changed API to take a string for the reader.
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10
g10/apdu.c
10
g10/apdu.c
@ -1879,11 +1879,19 @@ apdu_open_reader (const char *portstr)
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#ifdef HAVE_LIBUSB
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if (!opt.disable_ccid)
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{
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int slot;
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int slot, i;
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const char *s;
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slot = open_ccid_reader (portstr);
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if (slot != -1)
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return slot; /* got one */
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/* If a CCID reader specification has been given, the user does
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not want a fallback to other drivers. */
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if (portstr)
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for (s=portstr, i=0; *s; s++)
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if (*s == ':' && (++i == 3))
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return -1;
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}
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#endif /* HAVE_LIBUSB */
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@ -1540,233 +1540,6 @@ ccid_transceive (ccid_driver_t handle,
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int
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ccid_secure_transceive (ccid_driver_t handle,
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unsigned char *resp, size_t maxresplen, size_t *nresp)
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{
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int rc;
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unsigned char send_buffer[10+259], recv_buffer[10+259];
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unsigned char *msg, *tpdu, *p;
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size_t msglen, tpdulen, last_tpdulen, n;
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unsigned char seqno;
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int i;
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unsigned int edc;
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size_t dummy_nresp;
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int next_chunk = 1;
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int sending = 1;
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int retries = 0;
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if (!nresp)
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nresp = &dummy_nresp;
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*nresp = 0;
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tpdulen = 0; /* Avoid compiler warning about no initialization. */
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msg = send_buffer;
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for (;;)
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{
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msg[0] = PC_to_RDR_Secure;
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msg[5] = 0; /* slot */
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msg[6] = seqno = handle->seqno++;
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msg[7] = 4; /* bBWI */
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msg[8] = 0; /* RFU */
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msg[9] = 0; /* RFU */
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msg[10] = 0; /* Perform PIN verification. */
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msg[11] = 0; /* Timeout in seconds. */
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msg[12] = 0x8A; /* bmFormatString: Byte, pos=1, Ascii. */
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msg[13] = 0x80; /* bmPINBlockString:
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8 bits of pin length to insert.
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0 bytes of PIN block size. */
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msg[14] = 0x00; /* bmPINLengthFormat:
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Units are bits, position is 0. */
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msg[15] = 6; /* wPINMaxExtraDigit-Minimum. */
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msg[16] = 8; /* wPINMaxExtraDigit-Maximum. */
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msg[17] = 0x02; /* bEntryValidationCondition:
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Validation key pressed
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*/
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msg[18] = 0xff; /* bNumberMessage: Default. */
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msg[19] = 0x04; /* wLangId-High. */
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msg[20] = 0x09; /* wLangId-Low: English FIXME: use the first entry. */
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msg[21] = 0; /* bMsgIndex. */
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/* bTeoProlog follows: */
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msg[22] = handle->nonnull_nad? ((1 << 4) | 0): 0;
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msg[23] = ((handle->t1_ns & 1) << 6); /* I-block */
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msg[24] = 4; /* apdulen. */
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/* APDU follows: */
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msg[25] = 0; /* CLA */
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msg[26] = 0x20; /* INS Verify */
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msg[27] = 0; /* P1 */
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msg[28] = 0x81; /* P2: OpenPGP CHV1 */
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msg[29] = 0; /* L_c */
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msg[30] = '0';
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msg[31] = '0';
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msg[32] = '0';
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msg[33] = '0';
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msg[34] = '0';
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msg[35] = '0';
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msg[36] = '0';
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msg[37] = '0';
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msglen = 29;
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set_msg_len (msg, msglen - 10);
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last_tpdulen = tpdulen;
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DEBUGOUT ("sending");
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for (i=0; i < msglen; i++)
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DEBUGOUT_CONT_1 (" %02X", msg[i]);
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DEBUGOUT_LF ();
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#ifdef DEBUG_T1
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fprintf (stderr, "T1: put %c-block seq=%d\n",
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((msg[11] & 0xc0) == 0x80)? 'R' :
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(msg[11] & 0x80)? 'S' : 'I',
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((msg[11] & 0x80)? !!(msg[11]& 0x10) : !!(msg[11] & 0x40)));
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#endif
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rc = bulk_out (handle, msg, msglen);
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if (rc)
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return rc;
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msg = recv_buffer;
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rc = bulk_in (handle, msg, sizeof recv_buffer, &msglen,
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RDR_to_PC_DataBlock, seqno);
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if (rc)
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return rc;
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tpdu = msg + 10;
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tpdulen = msglen - 10;
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if (tpdulen < 4)
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{
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usb_clear_halt (handle->idev, 0x82);
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return CCID_DRIVER_ERR_ABORTED;
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}
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#ifdef DEBUG_T1
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fprintf (stderr, "T1: got %c-block seq=%d err=%d\n",
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((msg[11] & 0xc0) == 0x80)? 'R' :
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(msg[11] & 0x80)? 'S' : 'I',
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((msg[11] & 0x80)? !!(msg[11]& 0x10) : !!(msg[11] & 0x40)),
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((msg[11] & 0xc0) == 0x80)? (msg[11] & 0x0f) : 0
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);
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#endif
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if (!(tpdu[1] & 0x80))
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{ /* This is an I-block. */
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retries = 0;
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if (sending)
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{ /* last block sent was successful. */
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handle->t1_ns ^= 1;
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sending = 0;
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}
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if (!!(tpdu[1] & 0x40) != handle->t1_nr)
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{ /* Reponse does not match our sequence number. */
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msg = send_buffer;
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tpdu = msg+10;
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/* NAD: DAD=1, SAD=0 */
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tpdu[0] = handle->nonnull_nad? ((1 << 4) | 0): 0;
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tpdu[1] = (0x80 | (handle->t1_nr & 1) << 4 | 2); /* R-block */
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tpdu[2] = 0;
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tpdulen = 3;
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edc = compute_edc (tpdu, tpdulen, 0);
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tpdu[tpdulen++] = edc;
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continue;
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}
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handle->t1_nr ^= 1;
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p = tpdu + 3; /* Skip the prologue field. */
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n = tpdulen - 3 - 1; /* Strip the epilogue field. */
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/* fixme: verify the checksum. */
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if (resp)
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{
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if (n > maxresplen)
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{
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DEBUGOUT_2 ("provided buffer too short for received data "
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"(%u/%u)\n",
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(unsigned int)n, (unsigned int)maxresplen);
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return CCID_DRIVER_ERR_INV_VALUE;
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}
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memcpy (resp, p, n);
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resp += n;
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*nresp += n;
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maxresplen -= n;
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}
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if (!(tpdu[1] & 0x20))
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return 0; /* No chaining requested - ready. */
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msg = send_buffer;
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tpdu = msg+10;
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/* NAD: DAD=1, SAD=0 */
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tpdu[0] = handle->nonnull_nad? ((1 << 4) | 0): 0;
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tpdu[1] = (0x80 | (handle->t1_nr & 1) << 4); /* R-block */
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tpdu[2] = 0;
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tpdulen = 3;
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edc = compute_edc (tpdu, tpdulen, 0);
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tpdu[tpdulen++] = edc;
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}
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else if ((tpdu[1] & 0xc0) == 0x80)
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{ /* This is a R-block. */
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if ( (tpdu[1] & 0x0f))
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{ /* Error: repeat last block */
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if (++retries > 3)
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{
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DEBUGOUT ("3 failed retries\n");
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return CCID_DRIVER_ERR_CARD_IO_ERROR;
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}
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msg = send_buffer;
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tpdulen = last_tpdulen;
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}
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else if (sending && !!(tpdu[1] & 0x40) == handle->t1_ns)
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{ /* Reponse does not match our sequence number. */
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DEBUGOUT ("R-block with wrong seqno received on more bit\n");
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return CCID_DRIVER_ERR_CARD_IO_ERROR;
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}
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else if (sending)
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{ /* Send next chunk. */
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retries = 0;
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msg = send_buffer;
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next_chunk = 1;
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handle->t1_ns ^= 1;
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}
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else
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{
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DEBUGOUT ("unexpected ACK R-block received\n");
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return CCID_DRIVER_ERR_CARD_IO_ERROR;
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}
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}
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else
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{ /* This is a S-block. */
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retries = 0;
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DEBUGOUT_2 ("T1 S-block %s received cmd=%d\n",
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(tpdu[1] & 0x20)? "response": "request",
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(tpdu[1] & 0x1f));
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if ( !(tpdu[1] & 0x20) && (tpdu[1] & 0x1f) == 3 && tpdu[2])
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{ /* Wait time extension request. */
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unsigned char bwi = tpdu[3];
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msg = send_buffer;
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tpdu = msg+10;
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/* NAD: DAD=1, SAD=0 */
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tpdu[0] = handle->nonnull_nad? ((1 << 4) | 0): 0;
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tpdu[1] = (0xc0 | 0x20 | 3); /* S-block response */
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tpdu[2] = 1;
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tpdu[3] = bwi;
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tpdulen = 4;
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edc = compute_edc (tpdu, tpdulen, 0);
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tpdu[tpdulen++] = edc;
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DEBUGOUT_1 ("T1 waittime extension of bwi=%d\n", bwi);
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}
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else
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return CCID_DRIVER_ERR_CARD_IO_ERROR;
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}
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} /* end T=1 protocol loop. */
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return 0;
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}
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#ifdef TEST
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@ -1906,7 +1679,7 @@ main (int argc, char **argv)
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ccid_poll (ccid);
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if (!ccid->has_pinpad)
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/* if (!ccid->has_pinpad) */
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{
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fputs ("verifying that CHV1 is 123456....\n", stderr);
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{
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@ -1917,15 +1690,15 @@ main (int argc, char **argv)
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print_result (rc, result, resultlen);
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}
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}
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else
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{
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fputs ("verifying CHV1 using the PINPad ....\n", stderr);
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{
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rc = ccid_secure_transceive (ccid,
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result, sizeof result, &resultlen);
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print_result (rc, result, resultlen);
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}
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}
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/* else */
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/* { */
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/* fputs ("verifying CHV1 using the PINPad ....\n", stderr); */
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/* { */
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/* rc = ccid_secure_transceive (ccid, */
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/* result, sizeof result, &resultlen); */
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/* print_result (rc, result, resultlen); */
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/* } */
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/* } */
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ccid_close_reader (ccid);
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