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Recognizing TLS Extension "HeartBeat" as Valid TLS Packet

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Motivation:

The widely used SSL Implementation, OpenSSL, already supports Heartbeat Extension; both sending and responding to Heartbeat Messages. But, since Netty is not recognizing that extension as valid packet, peers won't be able to use this extension.

Modification:

Update SslUtils.java to recognize Heartbeat Extension as valid tls packet.

Result:

With this change, softwares using Netty + OpenSSL will be able to respond for TLS Heartbeat requests (actually taken care by OpenSSL - no need of any extra implementation from Clients)
This commit is contained in:
R Kaja Mohideen 2017-03-09 21:24:57 +05:30 committed by Norman Maurer
parent 6036b3f6ea
commit 13cd69c5ec
1 changed files with 7 additions and 0 deletions
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7
handler/src/main/java/io/netty/handler/ssl/SslUtils.java
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@ -48,6 +48,11 @@ final class SslUtils {
*/
static final int SSL_CONTENT_TYPE_APPLICATION_DATA = 23;
/**
* HeartBeat Extension
*/
static final int SSL_CONTENT_TYPE_EXTENSION_HEARTBEAT = 24;
/**
* the length of the ssl record header (in bytes)
*/
@ -90,6 +95,7 @@ final class SslUtils {
case SSL_CONTENT_TYPE_ALERT:
case SSL_CONTENT_TYPE_HANDSHAKE:
case SSL_CONTENT_TYPE_APPLICATION_DATA:
case SSL_CONTENT_TYPE_EXTENSION_HEARTBEAT:
tls = true;
break;
default:
@ -176,6 +182,7 @@ final class SslUtils {
case SSL_CONTENT_TYPE_ALERT:
case SSL_CONTENT_TYPE_HANDSHAKE:
case SSL_CONTENT_TYPE_APPLICATION_DATA:
case SSL_CONTENT_TYPE_EXTENSION_HEARTBEAT:
tls = true;
break;
default: