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OpenPGP: extend pgp_get_card_features() 

Extend pgp_get_card_features() with these features:
* get SC_CARD_CAP_RNG capability from "extended capabilities" DO 0x00c0
* for OpenPGP 2.0 cards get max_send_size / max_recv_size values
  from "extended capabilities" DI 0x00c0
* get max_pin_len from "CHV status bytes" DO 0x00c4

Signed-off-by: Peter Marschall <peter@adpm.de>

git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@5494 c6295689-39f2-0310-b995-f0e70906c6a9
This commit is contained in:
martin 2011-05-23 17:33:15 +00:00
parent 1342648a89
commit c46152d89b
1 changed files with 25 additions and 0 deletions
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25
src/libopensc/card-openpgp.c
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@ -390,6 +390,31 @@ pgp_get_card_features(sc_card_t *card)
}
}
if ((pgp_get_blob(card, priv->mf, 0x006e, &blob6e) >= 0) &&
(pgp_get_blob(card, blob6e, 0x0073, &blob73) >= 0)) {
/* get "extended capabilities" DO */
if ((pgp_get_blob(card, blob73, 0x00c0, &blob) >= 0) &&
(blob->data != NULL) && (blob->len > 0)) {
/* bit 0x40 if first byte means "support for get challenge" */
if (blob->data[0] & 0x40)
card->caps |= SC_CARD_CAP_RNG;
if ((priv->bcd_version >= OPENPGP_CARD_2_0) && (blob->len >= 10)) {
/* max. send/receive sizes are at bytes 7-8 resp. 9-10 */
card->max_send_size = bebytes2ushort(blob->data + 6);
card->max_recv_size = bebytes2ushort(blob->data + 8);
}
}
/* get max. PIN length from "CHV status bytes" DO */
if ((pgp_get_blob(card, blob73, 0x00c4, &blob) >= 0) &&
(blob->data != NULL) && (blob->len > 1)) {
/* 2nd byte in "CHV status bytes" DO means "max. PIN length" */
card->max_pin_len = blob->data[1];
}
}
return SC_SUCCESS;
}