Patch-ID# 100215-01
Keywords: x25 jumbo patch 
Synopsis: SunLink X.25 : fixes many x25 and x29 bugs.	
Date: 04/Feb/91
 
SunOS release: SunOS 4.0.X,  SunOS 4.1,  SunOS 4.1.1 

Unbundled Product: SunLink X.25 
 
Unbundled Release: 6.0
 
Topic: Latest X.25 super patch for 6.0.
 
BugId's fixed with this patch:

1042291 1046950 1036158 1032204 1046957 1045566
1042982

Architectures for which this patch is available: sun3, sun3x, sun4, sun4c


Patches which may conflict with this patch: 100106-01

Obsoleted by:  SunNet X.25 7.0

Problem Description:

Bug ID: 1042291
 
When using non-blocking mode X25 sockets, upon closing the
socket, X25 sends a CLEAR REQUEST packet but does not wait
for the CLEAR CONFIRM packet to arrive before marking the
LCN as available. If a new connect request is made, X25
will erroneously use this LCN thinking that it is available.
When the CLEAR CONFIRM packet finally arrives, it is not
 
 
Bug ID: 1046950
 
Receiving a DATA packet with the D bit set causes a RESET.

The x25_in.o module has been enhanced to allow the receipt
of such a packet even if the D bit was not negotiated for
during CALL setup phase. This makes it more robust and more
in keeping with the specification.
 
 
X29 Related bugs:
 
BugID: 1036158

The unsetting of pad parameter 12 is not permitted
using stty -ixon start '\377' stop '\377', this whoul
be required for applications that want to send ^S and ^Q.
 
 
Bug Id: 1032204
 
x29 only knows about the first 64 ptys (ptyp0 - ptysf)
instead of all 256 (ptyp0 - ptyzf, ptyP0 - ptyTf), this
patch allows all 256 pty's to be used if they have been
configured into the system.
 
 
 
Bug Id: 1046957
 
There is a bug in 6.0 X.25 in the x29 program because of
which a SIGINT is not conveyed to the application upon
receipt of the INTERRUPT packet. As an example, to interrupt
the cat of a long file, ctrlPb should send a break signal to
the x29 process which will kill the cat operation.  Before this
fix, it would not kill the cat operation.
 
 
Bug Id: 1045566
 
Login sessions to server running x25 arbitrarily lose echo.
When login into a system which uses x25. It is possible that
echo will not work. Typing stty echo and stty -echo has no
affect. In some cases, x29 does not pop the xtty module from
the tty stream. So when a normal user gets the pty, it does
not have ttcompat at the top of the stream head.
 
PAD Bugs related to Pad:
 
Bug Id: 1042982
 
Before this fix, if the pad program encountered bad pad parameters
it would stop processing the list. With this new pad program, it
will continue to process the good pad parameters and send pad indication
along with appropriate error indication.
 

INSTALL:

As root:

save the previous system files 
# mv /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_in.o /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_in.o.orig

# mv /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_ioctl.o /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_ioctl.o.orig

# mv /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_out.o /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_out.o.orig

# mv /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_usrreq.o /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_usrreq.o.orig
# mv /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_timer.o  /usr/sunlink/x25/sys/sun{3x,4c}/OBJ/x25_timer.o.orig
 
install  the new system files into /usr/sunlink/x25 
        # cp sun{3x,4c}/x25_in.o     /usr/sunlink/x25/x25_in.o
        # cp sun{3x,4c}/x25_ioctl.o /usr/sunlink/x25/x25_ioctl.o
        # cp sun{3x,4c}/x25_out.o    /usr/sunlink/x25/x25_out.o
        # cp sun{3x,4c}/x25_usrreq.o /usr/sunlink/x25/x25_usrreq.o
        # cp sun{3x,4c}/x25_timer.o  /usr/sunlink/x25/x25_timer.o
 
install  the new system files into system configuration area
        # cp sun{3x.4c}/x25_in.o     /sys/sun{3x,4c}/OBJ/x25_in.o
        # cp sun{3x.4c}/x25_ioctl.o  /sys/sun{3x,4c}/OBJ/x25_ioctl.o
        # cp sun{3x.4c}/x25_out.o    /sys/sun{3x,4c}/OBJ/x25_out.o
        # cp sun{3x.4c}/x25_usrreq.o /sys/sun{3x,4c}/OBJ/x25_usrreq.o
        # cp sun{3x.4c}/x25_timer.o  /sys/sun{3x,4c}/OBJ/x25_timer.o
 
        # mv /usr/sunlink/x25/x29 /usr/sunlink/x25/x29.orig
        # mv /sun{3x,4c}/x29 /usr/sunlink/x25/x29
        # mv /usr/sunlink/x25/pad /usr/sunlink/x25/pad.orig 
        # mv /sun{3x,4c}/pad /usr/sunlink/x25/pad 
 
Note:  If this is a SunOS 4.1 or 4.1.1 system you need to make the x29
       wrapper as in page 97 of the Release and Install notes.
 
     - rebuild your kernel, install it and reboot the machine.