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* Streaming: Enforce a minimum MTU of 512

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zzz
2008-11-11 02:30:49 +00:00
parent 875dd65dcb
commit 04509f593a
2 changed files with 11 additions and 5 deletions
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3
apps/streaming/java/src/net/i2p/client/streaming/ConnectionOptions.java
View File

@@ -162,6 +162,7 @@ public class ConnectionOptions extends I2PSocketOptionsImpl {
*
*/
public static final int DEFAULT_MAX_MESSAGE_SIZE = 1730;
public static final int MIN_MESSAGE_SIZE = 512;
public ConnectionOptions() {
super();
@@ -389,7 +390,7 @@ public class ConnectionOptions extends I2PSocketOptionsImpl {
* @return Maximum message size (MTU/MRU)
*/
public int getMaxMessageSize() { return _maxMessageSize; }
public void setMaxMessageSize(int bytes) { _maxMessageSize = bytes; }
public void setMaxMessageSize(int bytes) { _maxMessageSize = Math.max(bytes, MIN_MESSAGE_SIZE); }
/**
* how long we want to wait before any data is transferred on the

13
apps/streaming/java/src/net/i2p/client/streaming/ConnectionPacketHandler.java
View File

@@ -67,12 +67,17 @@ public class ConnectionPacketHandler {
}
if (packet.isFlagSet(Packet.FLAG_MAX_PACKET_SIZE_INCLUDED)) {
if (packet.getOptionalMaxSize() < con.getOptions().getMaxMessageSize()) {
int size = packet.getOptionalMaxSize();
if (size < ConnectionOptions.MIN_MESSAGE_SIZE) {
// log.error? connection reset?
size = ConnectionOptions.MIN_MESSAGE_SIZE;
}
if (size < con.getOptions().getMaxMessageSize()) {
if (_log.shouldLog(Log.INFO))
_log.info("Reducing our max message size to " + packet.getOptionalMaxSize()
_log.info("Reducing our max message size to " + size
+ " from " + con.getOptions().getMaxMessageSize());
con.getOptions().setMaxMessageSize(packet.getOptionalMaxSize());
con.getOutputStream().setBufferSize(packet.getOptionalMaxSize());
con.getOptions().setMaxMessageSize(size);
con.getOutputStream().setBufferSize(size);
}
}