Hmmm....I'm missing something here:

yum install fsiucv-3.10.0-957.12.2.el7.src.rpm
Loaded plugins: fastestmirror, langpacks
Examining fsiucv-3.10.0-957.12.2.el7.src.rpm: fsiucv-3.10.0-957.12.2.el7.src
Cannot add package fsiucv-3.10.0-957.12.2.el7.src.rpm to transaction. Not a 
compatible architecture: src
Error: Nothing to do

Frank M. Ramaekers Jr.
Unisys | Mainframe Systems Analyst I


-----Original Message-----
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Neale 
Ferguson
Sent: Friday, June 14, 2019 3:51 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: Communication with z/VM DVM?

There's a device driver I wrote that allows you to use IUCV as if it's a file 
and do open/close/read/write type operations. It has ioctls that allow you to 
specify things:

- Set target class   
- Get target class
- Set source class
- Get source class  
- Set message tag   
- Get message tag    
- Set answer buffer size for 2way reply
- Get name of partner user
- Get name of partner node 

It also lets you connect to the * services. The RPM has a sample program that 
connects to *MSG. A source RPM for ClefOS kernel 3.10.0-957.12.2 is available 
at 
https://urldefense.proofpoint.com/v2/url?u=http-3A__download.sinenomine.net_fsiucv_fsiucv-2D3.10.0-2D957.12.2.el7.src.rpm&d=DwIGaQ&c=laxeQK7vPmHfouIIPNyCfbQd49eK3u00U8Jdo0RFvts&r=EOaM1MkMLG24_TOy4m7EdDoX0CP9-c0YJ2kTdeagcqQ&m=4VU2Z-VReJg-AKEPxvQAu6VFyTBtF3DPGpF6PobXx6E&s=N85y0njBnpi-BzSFCyiMxC1wVj3JfFgFO9vHIpV4278&e=
 . It is simply a matter of building it against your own kernel level to 
produce working binaries:

1. rpm --install
2. Edit fsiucv.spec to change Version/Release specs 3. rpmbuild --ba 
fsiucv.spec (there will be dependencies that rpmbuild will report)

The binaries for the RPM will appear in the EPEL repo of ClefOS: 
https://urldefense.proofpoint.com/v2/url?u=http-3A__download.sinenomine.net_epel&d=DwIGaQ&c=laxeQK7vPmHfouIIPNyCfbQd49eK3u00U8Jdo0RFvts&r=EOaM1MkMLG24_TOy4m7EdDoX0CP9-c0YJ2kTdeagcqQ&m=4VU2Z-VReJg-AKEPxvQAu6VFyTBtF3DPGpF6PobXx6E&s=_-TvB20isTEbTn8rWv7hg-0xHZgjlImy9k7C9OeYW84&e=
  over the next day or so. 

Neale

On 6/14/19, 16:15, "Linux on 390 Port on behalf of Alan Altmark" 
<LINUX-390@VM.MARIST.EDU on behalf of alan_altm...@us.ibm.com> wrote:

    On Friday, 06/14/2019 at 07:13 GMT, "Frank M. Ramaekers" 
    <framaek...@ailife.com> wrote:
    > Yes, that was more like I was thinking of  (except in REXX).
    
    I suspect that Neale might have been referring to the base IUCV support in 
    Linux upon which AF_IUCV and the vmlogrdr are built, but I don't find any 
    documentation for it other than <net/iucv/iucv.h>.   (Egad!  I had 
    forgotten that I worked on that back in 2000!  Has it really been that 
    long?!?)  But I don't see any benefit to using that instead of AF_IUCV 
    sockets.
 


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