+++ /dev/null
-From 752f8981bed49a98d3592ead3aa50e743318dea8 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: Fri, 5 Apr 2013 17:18:50 +0700
-Subject: [PATCH 11/26] OpenPGP: Provide enough buffer to read pubkey from
- Gnuk.
-
----
- src/libopensc/card-openpgp.c | 28 +++++++++++++++++++++++-----
- 1 file changed, 23 insertions(+), 5 deletions(-)
-
-Index: opensc-20150513/src/libopensc/card-openpgp.c
-===================================================================
---- opensc-20150513.orig/src/libopensc/card-openpgp.c
-+++ opensc-20150513/src/libopensc/card-openpgp.c
-@@ -265,7 +265,12 @@ static struct do_info pgp2_objects[] =
-
- /* The DO holding X.509 certificate is constructed but does not contain child DO.
- * We should notice this when building fake file system later. */
--#define DO_CERT 0x7f21
-+#define DO_CERT 0x7f21
-+/* Maximum length for response buffer when reading pubkey. This value is calculated with
-+ * 4096-bit key length */
-+#define MAXLEN_RESP_PUBKEY 527
-+/* Gnuk only support 1 key length (2048 bit) */
-+#define MAXLEN_RESP_PUBKEY_GNUK 271
-
- #define DRVDATA(card) ((struct pgp_priv_data *) ((card)->drv_data))
- struct pgp_priv_data {
-@@ -739,6 +744,14 @@ pgp_read_blob(sc_card_t *card, struct bl
- u8 buffer[2048];
- size_t buf_len = (card->caps & SC_CARD_CAP_APDU_EXT)
- ? sizeof(buffer) : 256;
-+
-+ /* Buffer length for Gnuk pubkey */
-+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK &&
-+ (blob->id == 0xa400 || blob->id == 0xb600 || blob->id == 0xb800
-+ || blob->id == 0xa401 || blob->id == 0xb601 || blob->id == 0xb801)) {
-+ buf_len = MAXLEN_RESP_PUBKEY_GNUK;
-+ }
-+
- int r = blob->info->get_fn(card, blob->id, buffer, buf_len);
-
- if (r < 0) { /* an error occurred */
-@@ -1836,6 +1849,7 @@ static int pgp_gen_key(sc_card_t *card,
- u8 apdu_case;
- u8 *apdu_data;
- size_t apdu_le;
-+ size_t resplen = 0;
- int r = SC_SUCCESS;
-
- LOG_FUNC_CALLED(card->ctx);
-@@ -1876,23 +1890,27 @@ static int pgp_gen_key(sc_card_t *card,
- apdu_case = SC_APDU_CASE_4_EXT;
- }
- else {
-- apdu_le = 256;
- apdu_case = SC_APDU_CASE_4_SHORT;
-+ apdu_le = 256;
-+ resplen = MAXLEN_RESP_PUBKEY;
-+ }
-+ if (card->type == SC_CARD_TYPE_OPENPGP_GNUK) {
-+ resplen = MAXLEN_RESP_PUBKEY_GNUK;
- }
-
- /* Prepare APDU */
-- sc_format_apdu(card, &apdu, apdu_case, 0x47, 0x80, 0);
-+ sc_format_apdu(card, &apdu, apdu_case, 0x47, 0x80, 0);
- apdu.data = apdu_data;
- apdu.datalen = 2; /* Data = B600 */
- apdu.lc = 2;
- apdu.le = apdu_le;
-
- /* Buffer to receive response */
-- apdu.resp = calloc(apdu.le, 1);
-+ apdu.resplen = (resplen > 0) ? resplen : apdu_le;
-+ apdu.resp = calloc(apdu.resplen, 1);
- if (apdu.resp == NULL) {
- LOG_FUNC_RETURN(card->ctx, SC_ERROR_NOT_ENOUGH_MEMORY);
- }
-- apdu.resplen = apdu.le;
-
- /* Send */
- sc_log(card->ctx, "Waiting for the card to generate key...");