Re: [GNU Crypto] exception on multiple SaslConnection.send() calls

[Bryan Hoover <bhoover@xxxxxxxx>]

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Bryan Hoover wrote:

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> Jim Basney wrote:
>
> > Hello,
> >
> > I see that SaslC.java calls SaslConnection.reconnect() between two calls
> > to SaslConnection.send().  Is it not possible to send multiple messages
> > on the same SaslConnection?  If I comment the SaslConnection.reconnect()
> > call in SaslC.java and add a corresponding second receive() call in
> > SaslS.java, I get the following exceptions:
> >
> > ----------
> >     [saslc] [SaslConnection] Connected!
> >     [saslc] [SaslConnection] Outgoing message (str): There is more than one way to do it
> >     [saslc] [SaslConnection] Incoming response (str): ok
> >     [saslc] [SaslConnection] Outgoing message (str): 1 if by land. 2 if by sea...
> >     [saslc] java.lang.IllegalStateException
> >     [saslc]     at gnu.crypto.assembly.Assembly.lastUpdate(Assembly.java:267)
> >     [saslc]     at gnu.crypto.sasl.srp.CALG.doFinal(CALG.java:270)
> >     [saslc]     at gnu.crypto.sasl.srp.SRPClient.engineWrap(SRPClient.java:328)
> >     [saslc]     at gnu.crypto.sasl.ClientMechanism.wrap(ClientMechanism.java:136)
> >     [saslc]     at gnu.crypto.sasl.SaslOutputStream.write(SaslOutputStream.java:168)
> >     [saslc]     at java.io.OutputStream.write(OutputStream.java:58)
> >     [saslc]     at gnu.crypto.tool.SaslConnection.send(SaslConnection.java:244)
> >     [saslc]     at gnu.crypto.tool.SaslC.run(SaslC.java:148)
> >     [saslc]     at java.lang.Thread.run(Thread.java:552)
> >     [saslc] Client C0 shutdown...
> >     [saslc] Exiting...
> > ----------
> >     [sasls] ************** Connection authenticated....
> >     [sasls] Incoming request (str): There is more than one way to do it
> >     [sasls] Outgoing message (str): ok
> >     [sasls] Incoming request (str): ÿ
> >     [sasls] Outgoing message (str): ok
> >     [sasls] Exception while processing connection
> >     [sasls] Connection shutdown...
> >     [sasls] java.lang.IllegalStateException
> >     [sasls]     at gnu.crypto.assembly.Assembly.lastUpdate(Assembly.java:267)
> >     [sasls]     at gnu.crypto.sasl.srp.CALG.doFinal(CALG.java:270)
> >     [sasls]     at gnu.crypto.sasl.srp.SRPServer.engineWrap(SRPServer.java:363)
> >     [sasls]     at gnu.crypto.sasl.ServerMechanism.wrap(ServerMechanism.java:139)
> >     [sasls]     at gnu.crypto.sasl.SaslOutputStream.write(SaslOutputStream.java:170)
> >     [sasls]     at java.io.OutputStream.write(OutputStream.java:58)
> >     [sasls]     at gnu.crypto.tool.SaslS.send(SaslS.java:328)
> >     [sasls]     at gnu.crypto.tool.SaslS.run(SaslS.java:291)
> >     [sasls]     at java.lang.Thread.run(Thread.java:552)
> > ----------
> >
> > Am I doing something wrong?
>
> Don't comment the reconnect call :).  If possible, the existing connection will be reused,
> so "reconnect" is in a sense, a bit of a misnomer.

And come to think of it, the connection, and the security layer session are two different
things.  So, reconnect isn't so much a misnomer after all.  You reconnect, but you reuse, if
possible, the security session -- don't have to go through renogotiating and all that.

Bryan

> Bryan
>
> > -Jim
> >
> > _______________________________________________
> > gnu-crypto-discuss mailing list
> > gnu-crypto-discuss@xxxxxxx
> > http://lists.gnu.org/mailman/listinfo/gnu-crypto-discuss
>
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