NOVELL TECHNICAL INFORMATION DOCUMENT

TITLE:              Updated Client TLI Files
DOCUMENT ID:        TID021454
DOCUMENT REVISION:  B
DATE:               12JUL94
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         TLIWS1.EXE

NOVELL PRODUCT and VERSION:
NetWare 3.11
NetWare 3.12
NetWare 4.0
NetWare 4.01

ABSTRACT:

TLIWS1.EXE contains TLI 4.x files.  This version of TLI addresses the issues
with: disconnect, NULL pointer check, watchdogs, buffer size, and size
negotiations.

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DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO NOVELL.  NOVELL
MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY THIS INFORMATION.  HOWEVER, THE
INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION ONLY.  NOVELL
MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS INFORMATION.
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SYMPTOM

In OS/2, the user would see a bogus T_DISCONNECT on t_look; and when the user
would t_rcvdis, the system would GP fault.

CAUSE

An endpoint that did a t_snddis did a t_close before the disconnect ack came
in.

The disconnect ack processing freed the session table associated with the old
connection; when the t_close closed the endpoint, the ack did not come in and
the session table was never freed.  The watchdogging routing assumed the
session was active and tried to send bogus watchdogs.

SOLUTION

The watchdogging routine was cleaned to free orphaned session tables.

SYMPTOM

Users reported multiple Trap d problems.

SOLUTION

In this patch, Multiple NULL pointer checks were included when referencing the
queue posted in the session table entries.  These changes were made to enhance
the error handling code.

SYMPTOM

Watchdog was possibly causing a Trap.

SOLUTION

This patch adds a call to cancel the watchdog if it was scheduled. This was
possibly causing a Trap later in the code.  It was possible that if a SPX
session was destroyed, the Event might still trigger and access freed memory,
causing a Trap D in OS/2.

SYMPTOM

The driver truncates or returns a receive error.

SOLUTION

The patch allocates listening buffers to be driver size instead of 576 bytes. 
This should only have an effect if the listening Event Control Block (ECB)
receives a stray data or size negotiate packet while listening.  This fix will
keep the driver from truncating or giving a receive error.

SYMPTOM

Previously, if an OLD SPX connection had been an established endpoint, then
the spxIIOptionNegotiat flag was set to SPX_OPTION_NEGOTIAT_ON.  When a SPXII
machine then tried to connect, it expected size negotiation to occur; however,
this flag was never being reset, which caused the endpoint to hang.

SOLUTION

The patch changes the connect handler() check to see if the remote partner
wants the size negotiation on.

SOLUTION

Update your current TLI files with the updated 4.x TLI files contained in this
file.

Self-Extracting File Name:  TLIWS1.EXE     Revision:  B

Files Included     Size     Date      Time

\
  TLIWS1.TXT         (This File)
\DOS\BTC\
    CTLI.LIB      96963   06-08-94    2:27p
    LTLI.LIB      98499   06-08-94    2:16p
    MTLI.LIB      85187   06-08-94    2:23p
    STLI.LIB      83651   06-08-94    2:20p
\DOS\MSC\
    CTLI.LIB      95355   06-08-94    2:12p
    LTLI.LIB      96891   06-08-94    1:55p
    MTLI.LIB      81531   06-08-94    2:07p
    STLI.LIB      79995   06-08-94    2:01p
\H\
      POLL.H       2323   10-13-92    5:27p
    TIUSER.H      11638   01-20-94   10:37a
  TISPXIPX.H       6292   12-16-92    9:35a
\OS2\
     TLI.DLL      20929   06-08-94    2:22p
     TLI.LIB       4833   06-08-94    2:22p
 TLI_SPX.DLL      54833   06-08-94    2:53p
 TLI_TCP.DLL      10833   06-08-94    2:20p
\WIN\
 TLI_SPX.DLL      52179   06-08-94    5:38p
 TLI_WIN.DLL      15713   06-08-94    5:28p
 TLI_WIN.LIB       4839   06-08-94    5:28p


Installation Instructions:

1. Make a backup copy of your existing TLI files.

2. Copy the updated TLI files to your workstation's DOS/WIN/OS2 H and DLL
directories.

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