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From df98874784a77c96a7a1be54412a02a53fdd3a3e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nguy=E1=BB=85n=20H=E1=BB=93ng=20Qu=C3=A2n?=
<ng.hong.quan@gmail.com>
Date: Mon, 25 Mar 2013 11:58:38 +0700
Subject: [PATCH 08/26] OpenPGP: Read some empty DOs from Gnuk.
In Gnuk, some empty DOs are returned as not exist, instead of existing with empty value.
So, we will consider them exist in driver.
---
src/libopensc/card-openpgp.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/src/libopensc/card-openpgp.c b/src/libopensc/card-openpgp.c
index 91c311b..e7b25c0 100644
--- a/src/libopensc/card-openpgp.c
+++ b/src/libopensc/card-openpgp.c
@@ -815,6 +815,23 @@ pgp_get_blob(sc_card_t *card, struct blob *blob, unsigned int id,
}
}
+ /* This part is for "NOT FOUND" cases */
+
+ /* Special case:
+ * Gnuk does not have default value for children of DO 65 (DOs 5B, 5F2D, 5F35)
+ * So, if these blob was not found, we create it. */
+ if (blob->id == 0x65 && (id == 0x5B || id == 0x5F2D || id == 0x5F35)) {
+ sc_log(card->ctx, "Create blob %X under %X", id, blob->id);
+ child = pgp_new_blob(card, blob, id, sc_file_new());
+ if (child) {
+ pgp_set_blob(child, NULL, 0);
+ *ret = child;
+ return SC_SUCCESS;
+ }
+ else
+ sc_log(card->ctx, "Not enough memory to create blob for DO %X");
+ }
+
return SC_ERROR_FILE_NOT_FOUND;
}
@@ -1149,6 +1166,14 @@ pgp_get_data(sc_card_t *card, unsigned int tag, u8 *buf, size_t buf_len)
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
+
+ /* For Gnuk card, if there is no certificate, it returns error instead of empty data.
+ * So, for this case, we ignore error and consider success */
+ if (r == SC_ERROR_DATA_OBJECT_NOT_FOUND && card->type == SC_CARD_TYPE_OPENPGP_GNUK
+ && (tag == DO_CERT || tag == 0x0101 || tag == 0x0102 || tag == 0x0103 || tag == 0x0104)) {
+ r = SC_SUCCESS;
+ apdu.resplen = 0;
+ }
LOG_TEST_RET(card->ctx, r, "Card returned error");
LOG_FUNC_RETURN(card->ctx, apdu.resplen);
--
2.1.3