From c72e74275db6dbd7c0d031a1438d2a61e79b5bae Mon Sep 17 00:00:00 2001
From: Philippe Teuwen <phil@teuwen.org>
Date: Wed, 8 May 2019 20:13:07 +0200
Subject: [PATCH] fast mode on epa pace replay

---
 client/cmdhfepa.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/client/cmdhfepa.c b/client/cmdhfepa.c
index f0d06cda4..e88e1679e 100644
--- a/client/cmdhfepa.c
+++ b/client/cmdhfepa.c
@@ -109,6 +109,8 @@ static int CmdHFEPAPACEReplay(const char *Cmd) {
 
     // transfer the APDUs to the Proxmark
     uint8_t data[PM3_CMD_DATA_SIZE];
+    // fast push mode
+    conn.block_after_ACK = true;
     for (int i = 0; i < sizeof(apdu_lengths); i++) {
         // transfer the APDU in several parts if necessary
         for (int j = 0; j * sizeof(data) < apdu_lengths[i]; j++) {
@@ -117,6 +119,10 @@ static int CmdHFEPAPACEReplay(const char *Cmd) {
             if (packet_length > sizeof(data)) {
                 packet_length = sizeof(data);
             }
+            if ((i == sizeof(apdu_lengths)-1) && (j * sizeof(data) >= apdu_lengths[i] - 1)) {
+                // Disable fast mode on last packet
+                conn.block_after_ACK = false;
+            }
             memcpy(data, // + (j * sizeof(data)),
                    apdus[i] + (j * sizeof(data)),
                    packet_length);