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-rw-r--r--src/com/isode/stroke/tls/java/JSSEContext.java32
1 files changed, 19 insertions, 13 deletions
diff --git a/src/com/isode/stroke/tls/java/JSSEContext.java b/src/com/isode/stroke/tls/java/JSSEContext.java
index 03a6c8f..52edae1 100644
--- a/src/com/isode/stroke/tls/java/JSSEContext.java
+++ b/src/com/isode/stroke/tls/java/JSSEContext.java
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2014, Isode Limited, London, England.
+/* Copyright (c) 2012-2015, Isode Limited, London, England.
* All rights reserved.
*
* Acquisition and use of this software and related materials for any
@@ -236,6 +236,7 @@ public class JSSEContext extends TLSContext {
int bytesProduced = 0;
int bytesConsumed = 0;
int bytesToUnwrap = 0;
+ int lastConsumed = 0;
HandshakeStatus handshakeStatus = null;
ByteArray byteArray = null;
@@ -245,27 +246,34 @@ public class JSSEContext extends TLSContext {
boolean unwrapDone = false;
do {
+ int positionBeforeUnwrap = encryptedReceived.position();
bytesToUnwrap = encryptedReceived.remaining();
sslEngineResult = sslEngine.unwrap(encryptedReceived, unwrappedReceived);
status = sslEngineResult.getStatus();
handshakeStatus = sslEngineResult.getHandshakeStatus();
+ /*
+ * This should match sslEngineResult.bytesConsumed(), but we can't use this
+ * due to Android Lollipop bug: https://code.google.com/p/android/issues/detail?id=93740
+ */
+ lastConsumed = encryptedReceived.position() - positionBeforeUnwrap;
+
/* A call to unwrap can generate a status of FINISHED, which
* you won't get from SSLEngine.getHandshakeStatus. Such
* a status is an indication that we need to re-check whether
* anything's pending to be written
*/
if (handshakeStatus == HandshakeStatus.FINISHED ||
- (!handshakeCompleted &&
- handshakeStatus == HandshakeStatus.NOT_HANDSHAKING)) {
+ (!handshakeCompleted &&
+ handshakeStatus == HandshakeStatus.NOT_HANDSHAKING)) {
/* Special case will happen when the handshake completes following
* an unwrap. The first time we tried wrapping some plain stuff,
* it triggers the handshake but won't itself have been dealt with.
* So now the handshake has finished, we have to try sending it
* again
- * The second checking clause is necessary for certain
- * SSLEngine implementations (notably Apache Harmony
- * used on Android) which never return FINISHED
- */
+ * The second checking clause is necessary for certain
+ * SSLEngine implementations (notably Apache Harmony
+ * used on Android) which never return FINISHED
+ */
handshakeCompleted = true;
wrapAndSendData();
@@ -308,20 +316,20 @@ public class JSSEContext extends TLSContext {
case OK:
/* Some stuff was unwrapped. */
- bytesConsumed += sslEngineResult.bytesConsumed();
+ bytesConsumed += lastConsumed;
bytesProduced = sslEngineResult.bytesProduced();
/* It may be that the unwrap consumed some, but not all of
* the data. In which case, the loop continues to give it
* another chance to process whatever's remaining
*/
- if (sslEngineResult.bytesConsumed() == 0) {
+ if (lastConsumed == 0) {
/* No point looping around again */
unwrapDone = true;
}
else {
/* It consumed some bytes, but perhaps not everything */
- unwrapDone = (sslEngineResult.bytesConsumed() == bytesToUnwrap);
+ unwrapDone = (lastConsumed == bytesToUnwrap);
}
break;
}
@@ -329,9 +337,7 @@ public class JSSEContext extends TLSContext {
encryptedReceived.compact();
-
-
- bytesConsumed += sslEngineResult.bytesConsumed();
+ bytesConsumed += lastConsumed;
bytesProduced = sslEngineResult.bytesProduced();
}
catch (SSLException e) {