security-and-privacy/gnupg
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Code Activity

* command.c (scd_update_reader_status_file): Write status files.

Browse Source 
* app-help.c (app_help_read_length_of_cert): Fixed calculation of
R_CERTOFF.

* pcsc-wrapper.c: New.
* Makefile.am (pkglib_PROGRAMS): Install it here.
* apdu.c (writen, readn): New.
(open_pcsc_reader, pcsc_send_apdu, close_pcsc_reader): Use the
pcsc-wrapper if we are using Pth.
(apdu_send_le): Reinitialize RESULTLEN.  Handle SW_EOF_REACHED
like SW_SUCCESS.
This commit is contained in:
Werner Koch 2004-04-20 16:42:55 +00:00
parent 2c9aac608b
commit 78f797d11d
6 changed files with 68 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
NEWS
View File

@ -1,6 +1,11 @@
Noteworthy changes in version 1.9.8
------------------------------------------------
* [scdaemon] Overhauled the internal CCID driver.
* [scdaemon] Status files named ~/.gnupg/reader_<n>.status are now
written when using the internal CCID driver.
Noteworthy changes in version 1.9.7 (2004-04-06)
------------------------------------------------

7
scd/ChangeLog
View File

@ -1,10 +1,17 @@
2004-04-20 Werner Koch <wk@gnupg.org>
* command.c (scd_update_reader_status_file): Write status files.
* app-help.c (app_help_read_length_of_cert): Fixed calculation of
R_CERTOFF.
* pcsc-wrapper.c: New.
* Makefile.am (pkglib_PROGRAMS): Install it here.
* apdu.c (writen, readn): New.
(open_pcsc_reader, pcsc_send_apdu, close_pcsc_reader): Use the
pcsc-wrapper if we are using Pth.
(apdu_send_le): Reinitialize RESULTLEN. Handle SW_EOF_REACHED
like SW_SUCCESS.
2004-04-19 Werner Koch <wk@gnupg.org>

23
scd/apdu.c
View File

@ -913,7 +913,7 @@ pcsc_send_apdu (int slot, unsigned char *apdu, size_t apdulen,
}
full_len = len;
n = *buflen < len ? *buflen : len;
if ((i=readn (slotp->pcsc.rsp_fd, buffer, n, &len)) || len != n)
{
@ -922,6 +922,7 @@ pcsc_send_apdu (int slot, unsigned char *apdu, size_t apdulen,
goto command_failed;
}
*buflen = n;
full_len -= len;
if (full_len)
{
@ -1771,8 +1772,10 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
int lc, const char *data, int le,
unsigned char **retbuf, size_t *retbuflen)
{
unsigned char result[256+10]; /* 10 extra in case of bugs in the driver. */
size_t resultlen = 256;
#define RESULTLEN 256
unsigned char result[RESULTLEN+10]; /* 10 extra in case of bugs in
the driver. */
size_t resultlen;
unsigned char apdu[5+256+1];
size_t apdulen;
int sw;
@ -1811,6 +1814,7 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
assert (sizeof (apdu) >= apdulen);
/* As safeguard don't pass any garbage from the stack to the driver. */
memset (apdu+apdulen, 0, sizeof (apdu) - apdulen);
resultlen = RESULTLEN;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen);
if (rc || resultlen < 2)
{
@ -1867,8 +1871,9 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
{
int len = (sw & 0x00ff);
log_debug ("apdu_send_simple(%d): %d more bytes available\n",
slot, len);
if (DBG_CARD_IO)
log_debug ("apdu_send_simple(%d): %d more bytes available\n",
slot, len);
apdulen = 0;
apdu[apdulen++] = class;
apdu[apdulen++] = 0xC0;
@ -1876,6 +1881,7 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
apdu[apdulen++] = 0;
apdu[apdulen++] = len;
memset (apdu+apdulen, 0, sizeof (apdu) - apdulen);
resultlen = RESULTLEN;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen);
if (rc || resultlen < 2)
{
@ -1893,9 +1899,11 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
log_printhex (" dump: ", result, resultlen);
}
if ((sw & 0xff00) == SW_MORE_DATA || sw == SW_SUCCESS)
if ((sw & 0xff00) == SW_MORE_DATA
|| sw == SW_SUCCESS
|| sw == SW_EOF_REACHED )
{
if (retbuf)
if (retbuf && resultlen)
{
if (p - *retbuf + resultlen > bufsize)
{
@ -1935,6 +1943,7 @@ apdu_send_le(int slot, int class, int ins, int p0, int p1,
log_printhex (" dump: ", *retbuf, *retbuflen);
return sw;
#undef RESULTLEN
}
/* Send an APDU to the card in SLOT. The APDU is created from all

7
scd/app-help.c
View File

@ -147,8 +147,13 @@ app_help_read_length_of_cert (int slot, int fid, size_t *r_certoff)
is the certificate. */
*r_certoff += hdrlen + objlen;
if (*r_certoff > resultlen)
return 0; /* That should never happen. */
{
*r_certoff = 0;
return 0; /* That should never happen. */
}
}
else
*r_certoff = 0;
}
return resultlen;

2
scd/ccid-driver.c
View File

@ -108,7 +108,7 @@
/* Disable all debugging output for now. */
#undef DBG_CARD_IO
#define DBG_CARD_IO 1
#define DBG_CARD_IO 0
/* Define to print information pertaining the T=1 protocol. */
#undef DEBUG_T1

35
scd/command.c
View File

@ -1179,6 +1179,11 @@ send_status_info (CTRL ctrl, const char *keyword, ...)
void
scd_update_reader_status_file (void)
{
static struct {
int any;
unsigned int status;
unsigned int changed;
} last[10];
int slot;
int used;
unsigned int status, changed;
@ -1187,9 +1192,35 @@ scd_update_reader_status_file (void)
make sense to wait here for a operation to complete. If we are
so busy working with the card, delays in the status file updated
are should be acceptable. */
for (slot=0; !apdu_enum_reader (slot, &used); slot++)
for (slot=0; (slot < DIM(last)
&&!apdu_enum_reader (slot, &used)); slot++)
if (used && !apdu_get_status (slot, 0, &status, &changed))
{
log_info ("status of slot %d is %u\n", slot, status);
if (!last[slot].any || last[slot].status != status
|| last[slot].changed != changed )
{
char *fname;
char templ[50];
FILE *fp;
last[slot].any = 1;
last[slot].status = status;
last[slot].changed = changed;
log_info ("updating status of slot %d to 0x%04X\n", slot, status);
sprintf (templ, "reader_%d.status", slot);
fname = make_filename (opt.homedir, templ, NULL );
fp = fopen (fname, "w");
if (fp)
{
fprintf (fp, "%s\n",
(status & 1)? "USABLE":
(status & 4)? "ACTIVE":
(status & 2)? "PRESENT": "NOCARD");
fclose (fp);
}
xfree (fname);
}
}
}