security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2024-05-28 21:50:02 +02:00
Code Activity

Support extended APDU exchange level somehow.

Browse Source 
* ccid-driver.c (ccid_transceive_apdu_level): Permit sending packet
where apdulen <= 289.  Support receiving packets in a chain.
This commit is contained in:
NIIBE Yutaka 2011-12-05 12:00:14 +09:00
parent 239659d3a0
commit 37fadead90
1 changed files with 47 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
scd/ccid-driver.c
View File

@ -2590,8 +2590,8 @@ ccid_transceive_apdu_level (ccid_driver_t handle,
/* The maximum length for a short APDU T=1 block is 261. For an
extended APDU T=1 block the maximum length 65544; however
extended APDU exchange level is not yet supported. */
if (apdulen > 261)
extended APDU exchange level is not fully supported yet. */
if (apdulen > 289)
return CCID_DRIVER_ERR_INV_VALUE; /* Invalid length. */
msg[0] = PC_to_RDR_XfrBlock;
@ -2614,8 +2614,51 @@ ccid_transceive_apdu_level (ccid_driver_t handle,
if (rc)
return rc;
apdu = msg + 10;
apdulen = msglen - 10;
if (msg[9] == 1)
{
size_t total_msglen = msglen;
while (1)
{
unsigned char status;
msg = recv_buffer + total_msglen;
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = bwi; /* bBWI */
msg[8] = 0x10; /* Request next data block */
msg[9] = 0;
set_msg_len (msg, 0);
msglen = 10;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof recv_buffer - total_msglen, &msglen,
RDR_to_PC_DataBlock, seqno, 5000, 0);
if (rc)
return rc;
status = msg[9];
memmove (msg, msg+10, msglen - 10);
total_msglen += msglen - 10;
if (total_msglen >= sizeof recv_buffer)
return CCID_DRIVER_ERR_OUT_OF_CORE;
if (status == 0x02)
break;
}
apdu = recv_buffer + 10;
apdulen = total_msglen - 10;
}
else
{
apdu = msg + 10;
apdulen = msglen - 10;
}
if (resp)
{