Status: RELEASED
Patch Id: 110178-05
Summary: PC Netlink Netbios fixes
Date: Feb/19/2002
Installation Requirements:
Solaris Release: 2.6 7 8
Sun OS Release: 5.6 5.7 5.8
Unbundled Product: PC Netlink
Unbundled Release: 1.2
Xref:
Topic:
Relevant Architecture: sparc
NOTE: sun4u
BugId's fixed with this patch:
4277106 4319954 4354457 4356232 4370245 4374753 4376782 4387763 4390101 4395930 4396310 4397013 4397657 4410072 4413478 4453149 4464191 4493076 4613810
Changes incorporated in this version:
4277106 4319954 4396310 4397013
4453149 4493076 4613810
Patches accumulated and obsoleted by this patch:
Patches which conflict with this patch:
Required Patches:
Obsoleted by:
Files Included in this Patch:
kernel/drv/nbx
kernel/drv/sparcv9/nbx
opt/SUNWlznb/sbin/get_aliases
opt/SUNWlznb/sbin/nbdaemon
opt/SUNWlznb/sbin/nbnsName.add
Problem Description:
############## New in this patch ##################
4277106 resources not available after TRUST without wins
The script nbnsName.add was not adding the group
name (type 0x1C) for a domain name.
4319954 Net Perms hangs in t_connect
There was a hang when the remote end disconnects
immediately before the local end is closed.
4396310 Net user commands hang in t_connect
When a large number of connection indications arrive
simultaneously in the NetBIOS driver, it sometimes
failed to correctly reject those it could not handle.
4397013 WINS uses phys IP instead of cluster IP addr
The script get_aliases did not correctly handle
network interface names like "hme0:1".
4453149 NetBIOS panic during NET PERMS operations
There was a race condition in the connection tear-down code
when both the remote and local ends closed simultaneously.
4493076 NT / Win2K client writes take 3X longer than reads.
The NetBIOS driver was incorrectly reporting its
maximum segment size to be 32K (now 128K).
4613810 System panic caused by nbx module
There was a race condition in the routine that handles
timeout of name deregistration that could lead to a
null pointer dereference.
############## Carried forward from 110179-04 ##################
4410072 Node status response with many names panics NETBIOS
If the PCNL machine makes a node status query (which is used in
certain name resolution situations), and that query response is
more than about 500 bytes in length, then netbios will panic. It
is extremely unusual to see that many names registered on a single
machine. It is possible to have such a large number of registered
names on the soon to be released PCNL version 2.0.
4413478 NETBIOS problem with WINS load and stress tests
The WINS load and stress tests are unusual for a file server
product in that they make lots of out-bound tcp connections. PCNL
was seeing occasional 'hangs' in out-bound tcp connections through
netbios.
4464191 Panic in NETBIOS keep-alive service
There is a rare condition where an lmx.srv process may send a
netbios keep-alive message downstream during a long data transfer,
and that messages is queued but not serviced, and then at the same
time the client aborts that session. When the keep-alive message
is processed, it's session to the client has been disconnected, and
a panic would occur.
############## Carried forward from 110179-03 ##################
4395930 Netlink 1.2 very slow on writes
This Patch contains the netbios part of the fix for Bugid 4395930,
the rest of which is implemented in Patch T110179-05.
This patch is otherwise the same as patch 110178-02.
This version of the netbios provides an external interface to cause
a netbios keepalive packet to be sent. This allows the server to
call into netbios to send this keepalive, which will as a side effect
force out any pending acks, which is the real purpose.
This netbios will operate correctly with or without tpatch T110179-05,
as the only change is the addition of the the new call which is unused
prior to T110179-05.
############## Carried forward from 110178-02 ##################
4397657 Problem with browser service if P-Mode enabled in NT DCS
Set up all NT Domain Controllers in P-Mode. Installed PCNL
as backup in this domain. More specifically tested with 2.0_b36.
On starting the PCNL server it lists the BROWSER service as up,
but the commands net view, net stop browser will fail. PCNL is
configured in H-Mode
4390101 There are "cmd" structs left after stopping Netbios
After stopping Netbios, nbmem shows allocated "cmd" and "ctrl" structs.
The "ctrl" structs are attached to the "cmd" structs. All have the
same flag values. So it appears that there is a bug which doesn't
free these structures.
4356232 Netbios does not work with P mode systems
Windows systems may be configured for P mode (point to point)
by setting the NetBT Registry parameter "NodeType" to 2. But
then they will not work with PCNL. The cause is a name query
sent to the Windows system by the PCNL Netbios which has the
broadcast bit set. The query is correctly ignored by the P
mode system. But because the PCNL system gets no response,
it does not connect.
4387763 Improper memory access after "cmd" structure deleted.
An internal memory access to previously allocated memory
could cause panic in extremely rare circumstances.
############## Carried forward from 110178-01 ##################
4354457 Node status query does not work properly
NT systems configured to use DNS issue a Netbios "node adapter
status query" to query the set of Netbios names registered on
a particular server. The host name specified in this query is
"*" which was not properly handled in previous versions of
PCNL. Therefore, NT systems configured to use DNS could not
always find services which were available on a PCNL system.
This problem has been fixed in this patch.
4370245 Restarting browser at PDC breaks the browser functionality if PCNL is BDC
If a PDC is stopped and restarted, a PCNL 1.2 system on the same
subnet may become the Master Browser. After the PDC restarts,
it forces and election and tries to become the Master Browser.
However, the PCNL 1.2 system will not relinquish the Master
Browser Netbios name (type 0x1D) and the PDC can not become
the Master Browser. Without a Master Browser on the subnet,
the Browser functionality no longer works.
This bug was introduced in PCNL 1.2. The bug prevented a name
which was deleted (or deregistered) from being freed from the
name table. The code which frees names has been fixed in this
patch.
4374753 Hang in 64-bit Netbios driver causes "Error 53"
On certain hardware configurations running 64-bit kernels, the
Netbios driver occasionally hangs which causes PCNL to stop
responding to incoming connection requests. The symptom is an
"Error 53 has occurred" when running a "net" command such as
"net share".
This was a timing problem. The response to one particular
priority request was handled by the service routine, which
is scheduled to run some time after the original request.
Therefore, it did not always respond within the required time
interval. This response has been moved out of the service
routine, so that the response to this priority request is
immediate.
4376782 Netbios may panic the system when a session is closed.
When a session is closed, the session structure may be freed
prior to checking a flag in the session structure. This
access to freed memory may cause a system panic.Revision History:
110178-02 110178-04 110178-01 110178-03
Patch Installation Instructions:
--------------------------------
Refer to the Install.info file for instructions on using the
generic 'installpatch' and 'backoutpatch' scripts provided with
each patch. Any other special or non-generic installation
instructions should be described below as special instructions.
Special Install Instructions:
-----------------------------
NOTE: This patch must be installed using the version of installpatch that
shipped w/ this patch. It should not be installed via the patchadd utility.
Also, the system that this patch is applied to should be rebooted after patch
installation. This will ensure proper functioning of the applied patch binaries.
README -- Last modified date: Tuesday, February 19, 2002
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