From f5d0bc52b332cbae4e231f32b1fb540581e7564a Mon Sep 17 00:00:00 2001
From: Frank Morgner <morgner@informatik.hu-berlin.de>
Date: Wed, 25 Mar 2015 07:50:33 +0100
Subject: [PATCH] fixed logging out with PACE reader

---
 npa/src/card-npa.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/npa/src/card-npa.c b/npa/src/card-npa.c
index 04d31ad..be917e3 100644
--- a/npa/src/card-npa.c
+++ b/npa/src/card-npa.c
@@ -653,7 +653,19 @@ err:
 
 static int npa_logout(sc_card_t *card)
 {
+    struct sc_apdu apdu;
+
     sm_stop(card);
+
+    if (card->reader->capabilities & SC_READER_CAP_PACE_GENERIC) {
+        /* If PACE is done between reader and card, SM is transparent to us as
+         * it ends at the reader. With CLA=0x0C we provoque a SM error to
+         * disable SM on the reader. */
+        sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0xA4, 0x00, 0x00);
+        apdu.cla = 0x0C;
+        sc_transmit_apdu(card, &apdu);
+        /* ignore result */
+    }
     return sc_select_file(card, sc_get_mf_path(), NULL);
 }