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scd: Add option --dump-atr to command APDU.
* scd/atr.c: Rewrite. * scd/Makefile.am (scdaemon_SOURCES): Add atr.c and atr.h. * scd/command.c (cmd_apdu): Add option --dump-atr.
This commit is contained in:
Werner Koch
parent
7737a2c269
commit
b22d62bd14
@ -37,6 +37,7 @@ card_apps = app-openpgp.c app-nks.c app-dinsig.c app-p15.c app-geldkarte.c
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scdaemon_SOURCES = \
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scdaemon.c scdaemon.h \
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command.c \
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atr.c atr.h \
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apdu.c apdu.h \
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ccid-driver.c ccid-driver.h \
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iso7816.c iso7816.h \
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252
scd/atr.c
252
scd/atr.c
@ -1,5 +1,5 @@
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/* atr.c - ISO 7816 ATR fucntions
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* Copyright (C) 2003 Free Software Foundation, Inc.
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* Copyright (C) 2003, 2011 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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@ -24,10 +24,9 @@
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#include <string.h>
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#include <assert.h>
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#include "scdaemon.h"
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#include "apdu.h"
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#include "../common/estream.h"
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#include "../common/logging.h"
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#include "atr.h"
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#include "dynload.h"
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static int const fi_table[16] = { 0, 372, 558, 744, 1116,1488, 1860, -1,
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-1, 512, 768, 1024, 1536, 2048, -1, -1 };
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@ -35,37 +34,42 @@ static int const di_table[16] = { -1, 1, 2, 4, 8, 16, -1, -1,
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0, -1, -2, -4, -8, -16, -32, -64};
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/* Dump the ATR of the card at SLOT in a human readable format to
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stream FP. */
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int
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atr_dump (int slot, FILE *fp)
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/* Dump the ATR in (BUFFER,BUFLEN) to a human readable format and
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return that as a malloced buffer. The caller must release this
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buffer using es_free! On error this function returns NULL and sets
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ERRNO. */
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char *
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atr_dump (const void *buffer, size_t buflen)
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{
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unsigned char *atrbuffer, *atr;
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size_t atrlen;
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const unsigned char *atr = buffer;
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size_t atrlen = buflen;
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estream_t fp;
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int have_ta, have_tb, have_tc, have_td;
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int n_historical;
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int idx, val;
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unsigned char chksum;
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char *result;
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atr = atrbuffer = apdu_get_atr (slot, &atrlen);
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if (!atr)
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return gpg_error (GPG_ERR_GENERAL);
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fp = es_fopenmem (0, "rwb");
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if (!fp)
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return NULL;
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fprintf (fp, "Info on ATR of length %u at slot %d\n",
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(unsigned int)atrlen, slot);
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if (!atrlen)
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{
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fprintf (fp, "error: empty ATR\n");
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es_fprintf (fp, "error: empty ATR\n");
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goto bailout;
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}
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for (idx=0; idx < atrlen ; idx++)
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es_fprintf (fp, "%s%02X", idx?" ":"", atr[idx]);
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es_putc ('\n', fp);
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if (*atr == 0x3b)
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fputs ("direct convention\n", fp);
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es_fputs ("Direct convention\n", fp);
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else if (*atr == 0x3f)
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fputs ("inverse convention\n", fp);
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es_fputs ("Inverse convention\n", fp);
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else
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fprintf (fp,"error: invalid TS character 0x%02x\n", *atr);
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es_fprintf (fp,"error: invalid TS character 0x%02x\n", *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -79,34 +83,34 @@ atr_dump (int slot, FILE *fp)
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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n_historical = (*atr & 0x0f);
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fprintf (fp, "%d historical characters indicated\n", n_historical);
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es_fprintf (fp, "%d historical characters indicated\n", n_historical);
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if (have_ta + have_tb + have_tc + have_td + n_historical > atrlen)
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fputs ("error: ATR shorter than indicated by format character\n", fp);
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es_fputs ("error: ATR shorter than indicated by format character\n", fp);
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if (!--atrlen)
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goto bailout;
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atr++;
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if (have_ta)
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{
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fputs ("TA1: F=", fp);
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es_fputs ("TA1: F=", fp);
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val = fi_table[(*atr >> 4) & 0x0f];
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if (!val)
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fputs ("internal clock", fp);
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es_fputs ("internal clock", fp);
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else if (val == -1)
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fputs ("RFU", fp);
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es_fputs ("RFU", fp);
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else
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fprintf (fp, "%d", val);
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fputs (" D=", fp);
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es_fprintf (fp, "%d", val);
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es_fputs (" D=", fp);
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val = di_table[*atr & 0x0f];
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if (!val)
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fputs ("[impossible value]\n", fp);
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es_fputs ("[impossible value]\n", fp);
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else if (val == -1)
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fputs ("RFU\n", fp);
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es_fputs ("RFU\n", fp);
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else if (val < 0 )
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fprintf (fp, "1/%d\n", val);
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es_fprintf (fp, "1/%d\n", val);
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else
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fprintf (fp, "%d\n", val);
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es_fprintf (fp, "%d\n", val);
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if (!--atrlen)
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goto bailout;
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@ -115,8 +119,9 @@ atr_dump (int slot, FILE *fp)
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if (have_tb)
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{
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fprintf (fp, "TB1: II=%d PI1=%d%s\n", (*atr >> 5) & 3, *atr & 0x1f,
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(*atr & 0x80)? " [high bit not cleared]":"");
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es_fprintf (fp, "TB1: II=%d PI1=%d%s\n",
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((*atr >> 5) & 3), (*atr & 0x1f),
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(*atr & 0x80)? " [high bit not cleared]":"");
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -125,9 +130,9 @@ atr_dump (int slot, FILE *fp)
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if (have_tc)
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{
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if (*atr == 255)
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fputs ("TC1: guard time shortened to 1 etu\n", fp);
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es_fputs ("TC1: guard time shortened to 1 etu\n", fp);
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else
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fprintf (fp, "TC1: (extra guard time) N=%d\n", *atr);
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es_fprintf (fp, "TC1: (extra guard time) N=%d\n", *atr);
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if (!--atrlen)
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goto bailout;
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@ -140,10 +145,11 @@ atr_dump (int slot, FILE *fp)
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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fprintf (fp, "TD1: protocol T%d supported\n", *atr & 0x0f);
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es_fprintf (fp, "TD1: protocol T%d supported\n", (*atr & 0x0f));
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if (have_ta + have_tb + have_tc + have_td + n_historical > atrlen)
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fputs ("error: ATR shorter than indicated by format character\n", fp);
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es_fputs ("error: ATR shorter than indicated by format character\n",
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fp);
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if (!--atrlen)
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goto bailout;
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@ -154,12 +160,12 @@ atr_dump (int slot, FILE *fp)
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if (have_ta)
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{
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fprintf (fp, "TA2: (PTS) %stoggle, %splicit, T=%02X\n",
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(*atr & 0x80)? "no-":"",
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(*atr & 0x10)? "im": "ex",
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(*atr & 0x0f));
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es_fprintf (fp, "TA2: (PTS) %stoggle, %splicit, T=%02X\n",
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(*atr & 0x80)? "no-":"",
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(*atr & 0x10)? "im": "ex",
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(*atr & 0x0f));
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if ((*atr & 0x60))
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fprintf (fp, "note: reserved bits are set (TA2=0x%02X)\n", *atr);
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es_fprintf (fp, "note: reserved bits are set (TA2=0x%02X)\n", *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -167,7 +173,7 @@ atr_dump (int slot, FILE *fp)
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if (have_tb)
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{
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fprintf (fp, "TB2: PI2=%d\n", *atr);
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es_fprintf (fp, "TB2: PI2=%d\n", *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -175,7 +181,7 @@ atr_dump (int slot, FILE *fp)
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if (have_tc)
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{
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fprintf (fp, "TC2: PWI=%d\n", *atr);
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es_fprintf (fp, "TC2: PWI=%d\n", *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -187,10 +193,11 @@ atr_dump (int slot, FILE *fp)
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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fprintf (fp, "TD2: protocol T%d supported\n", *atr & 0x0f);
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es_fprintf (fp, "TD2: protocol T%d supported\n", *atr & 0x0f);
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if (have_ta + have_tb + have_tc + have_td + n_historical > atrlen)
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fputs ("error: ATR shorter than indicated by format character\n", fp);
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es_fputs ("error: ATR shorter than indicated by format character\n",
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fp);
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if (!--atrlen)
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goto bailout;
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@ -203,7 +210,7 @@ atr_dump (int slot, FILE *fp)
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{
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if (have_ta)
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{
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fprintf (fp, "TA%d: IFSC=%d\n", idx, *atr);
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es_fprintf (fp, "TA%d: IFSC=%d\n", idx, *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -211,7 +218,7 @@ atr_dump (int slot, FILE *fp)
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if (have_tb)
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{
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fprintf (fp, "TB%d: BWI=%d CWI=%d\n",
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es_fprintf (fp, "TB%d: BWI=%d CWI=%d\n",
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idx, (*atr >> 4) & 0x0f, *atr & 0x0f);
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if (!--atrlen)
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goto bailout;
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@ -220,7 +227,7 @@ atr_dump (int slot, FILE *fp)
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if (have_tc)
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{
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fprintf (fp, "TC%d: 0x%02X\n", idx, *atr);
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es_fprintf (fp, "TC%d: 0x%02X\n", idx, *atr);
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if (!--atrlen)
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goto bailout;
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atr++;
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@ -232,11 +239,12 @@ atr_dump (int slot, FILE *fp)
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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fprintf (fp, "TD%d: protocol T%d supported\n", idx, *atr & 0x0f);
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es_fprintf (fp, "TD%d: protocol T%d supported\n", idx, *atr & 0x0f);
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if (have_ta + have_tb + have_tc + have_td + n_historical > atrlen)
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fputs ("error: ATR shorter than indicated by format character\n",
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fp);
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es_fputs ("error: "
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"ATR shorter than indicated by format character\n",
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fp);
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if (!--atrlen)
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goto bailout;
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@ -247,150 +255,36 @@ atr_dump (int slot, FILE *fp)
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}
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if (n_historical + 1 > atrlen)
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fputs ("error: ATR shorter than required for historical bytes "
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"and checksum\n", fp);
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es_fputs ("error: ATR shorter than required for historical bytes "
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"and checksum\n", fp);
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if (n_historical)
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{
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fputs ("Historical:", fp);
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es_fputs ("HCH:", fp);
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for (; n_historical && atrlen ; n_historical--, atrlen--, atr++)
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fprintf (fp, " %02X", *atr);
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putchar ('\n');
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es_fprintf (fp, " %02X", *atr);
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es_putc ('\n', fp);
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}
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if (!atrlen)
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fputs ("error: checksum missing\n", fp);
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es_fputs ("error: checksum missing\n", fp);
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else if (*atr == chksum)
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fprintf (fp, "TCK: %02X (good)\n", *atr);
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es_fprintf (fp, "TCK: %02X (good)\n", *atr);
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else
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fprintf (fp, "TCK: %02X (bad; calculated %02X)\n", *atr, chksum);
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es_fprintf (fp, "TCK: %02X (bad; computed %02X)\n", *atr, chksum);
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atrlen--;
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if (atrlen)
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fprintf (fp, "error: %u bytes garbage at end of ATR\n",
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(unsigned int)atrlen );
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es_fprintf (fp, "error: %u bytes garbage at end of ATR\n",
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(unsigned int)atrlen );
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bailout:
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xfree (atrbuffer);
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return 0;
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}
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/* Note: This code has not yet been tested! It shall return -1 on
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error or the number of historical bytes and store them at
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HISTORICAL. */
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int
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atr_get_historical (int slot, unsigned char historical[])
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{
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int result = -1;
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unsigned char *atrbuffer = NULL;
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unsigned char *atr;
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size_t atrlen;
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int have_ta, have_tb, have_tc, have_td;
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int n_historical;
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int idx;
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unsigned char chksum;
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atr = atrbuffer = apdu_get_atr (slot, &atrlen);
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if (!atr || atrlen < 2)
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goto leave;
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atrlen--;
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atr++;
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chksum = *atr;
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for (idx=1; idx < atrlen-1; idx++)
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chksum ^= atr[idx];
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have_ta = !!(*atr & 0x10);
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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n_historical = (*atr & 0x0f);
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if (have_ta + have_tb + have_tc + have_td + n_historical >= atrlen)
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goto leave; /* ATR shorter than indicated by format character. */
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atrlen--;
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atr++;
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if (have_ta + have_tb + have_tc >= atrlen)
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goto leave;
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atrlen -= have_ta + have_tb + have_tc;
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atr += have_ta + have_tb + have_tc;
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if (have_td)
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es_putc ('\0', fp); /* We want a string. */
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if (es_fclose_snatch (fp, (void**)&result, NULL))
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{
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have_ta = !!(*atr & 0x10);
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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if (have_ta + have_tb + have_tc + have_td + n_historical >= atrlen)
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goto leave; /* ATR shorter than indicated by format character. */
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atrlen--;
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atr++;
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log_error ("oops: es_fclose_snatch failed: %s\n", strerror (errno));
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return NULL;
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}
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else
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have_ta = have_tb = have_tc = have_td = 0;
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if (have_ta + have_tb + have_tc >= atrlen)
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goto leave;
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atrlen -= have_ta + have_tb + have_tc;
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atr += have_ta + have_tb + have_tc;
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if (have_td)
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{
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have_ta = !!(*atr & 0x10);
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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if (have_ta + have_tb + have_tc + have_td + n_historical >= atrlen)
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goto leave; /* ATR shorter than indicated by format character. */
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atrlen--;
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atr++;
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}
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else
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have_ta = have_tb = have_tc = have_td = 0;
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for (idx = 3; have_ta || have_tb || have_tc || have_td; idx++)
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{
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if (have_ta + have_tb + have_tc >= atrlen)
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goto leave;
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atrlen -= have_ta + have_tb + have_tc;
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atr += have_ta + have_tb + have_tc;
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if (have_td)
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{
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have_ta = !!(*atr & 0x10);
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have_tb = !!(*atr & 0x20);
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have_tc = !!(*atr & 0x40);
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have_td = !!(*atr & 0x80);
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if (have_ta + have_tb + have_tc + have_td + n_historical >= atrlen)
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goto leave; /* ATR shorter than indicated by format character. */
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atrlen--;
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atr++;
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}
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else
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have_ta = have_tb = have_tc = have_td = 0;
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}
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if (n_historical >= atrlen)
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goto leave; /* ATR shorter than required for historical bytes. */
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if (n_historical)
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{
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for (idx=0; n_historical && atrlen; n_historical--, atrlen--, atr++)
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historical[idx] = *atr;
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}
|
||||
|
||||
if (!atrlen || *atr != chksum)
|
||||
goto leave;
|
||||
|
||||
/* Don't care about garbage at the end of the ATR. */
|
||||
|
||||
result = n_historical;
|
||||
|
||||
leave:
|
||||
xfree (atrbuffer);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
@ -20,7 +20,7 @@
|
||||
#ifndef ATR_H
|
||||
#define ATR_H
|
||||
|
||||
int atr_dump (int slot, FILE *fp);
|
||||
char *atr_dump (const void *buffer, size_t buflen);
|
||||
|
||||
|
||||
|
||||
|
||||
@ -35,11 +35,13 @@
|
||||
#include <ksba.h>
|
||||
#include "app-common.h"
|
||||
#include "apdu.h" /* Required for apdu_*_reader (). */
|
||||
#include "atr.h"
|
||||
#include "exechelp.h"
|
||||
#ifdef HAVE_LIBUSB
|
||||
#include "ccid-driver.h"
|
||||
#endif
|
||||
|
||||
|
||||
/* Maximum length allowed as a PIN; used for INQUIRE NEEDPIN */
|
||||
#define MAXLEN_PIN 100
|
||||
|
||||
@ -1795,7 +1797,7 @@ cmd_disconnect (assuan_context_t ctx, char *line)
|
||||
|
||||
|
||||
static const char hlp_apdu[] =
|
||||
"APDU [--atr] [--more] [--exlen[=N]] [hexstring]\n"
|
||||
"APDU [--[dump-]atr] [--more] [--exlen[=N]] [hexstring]\n"
|
||||
"\n"
|
||||
"Send an APDU to the current reader. This command bypasses the high\n"
|
||||
"level functions and sends the data directly to the card. HEXSTRING\n"
|
||||
@ -1826,7 +1828,10 @@ cmd_apdu (assuan_context_t ctx, char *line)
|
||||
size_t exlen;
|
||||
int slot;
|
||||
|
||||
with_atr = has_option (line, "--atr");
|
||||
if (has_option (line, "--dump-atr"))
|
||||
with_atr = 2;
|
||||
else
|
||||
with_atr = has_option (line, "--atr");
|
||||
handle_more = has_option (line, "--more");
|
||||
|
||||
if ((s=has_option_name (line, "--exlen")))
|
||||
@ -1861,9 +1866,32 @@ cmd_apdu (assuan_context_t ctx, char *line)
|
||||
rc = gpg_error (GPG_ERR_INV_CARD);
|
||||
goto leave;
|
||||
}
|
||||
bin2hex (atr, atrlen, hexbuf);
|
||||
if (with_atr == 2)
|
||||
{
|
||||
char *string, *p, *pend;
|
||||
|
||||
string = atr_dump (atr, atrlen);
|
||||
if (string)
|
||||
{
|
||||
for (rc=0, p=string; !rc && (pend = strchr (p, '\n')); p = pend+1)
|
||||
{
|
||||
rc = assuan_send_data (ctx, p, pend - p + 1);
|
||||
if (!rc)
|
||||
rc = assuan_send_data (ctx, NULL, 0);
|
||||
}
|
||||
if (!rc && *p)
|
||||
rc = assuan_send_data (ctx, p, strlen (p));
|
||||
es_free (string);
|
||||
if (rc)
|
||||
goto leave;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
bin2hex (atr, atrlen, hexbuf);
|
||||
send_status_info (ctrl, "CARD-ATR", hexbuf, strlen (hexbuf), NULL, 0);
|
||||
}
|
||||
xfree (atr);
|
||||
send_status_info (ctrl, "CARD-ATR", hexbuf, strlen (hexbuf), NULL, 0);
|
||||
}
|
||||
|
||||
apdu = hex_to_buffer (line, &apdulen);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user