Charles: Password is in the clear, just like it's always been. The main
security is controlled by directory permissions on the server--it's really a
"dump it here". They can't even see what they've uploaded. The download
directory (stuff from us) is read-only. Like I said, "kicking and screaming"...
Frank: //CEEOPTS is very close to what I was looking for!
//FTPXFER EXEC PGM=FTP,REGION=4M,
// PARM=('ENVAR("GSK_PROTOCOL_TLSV1_2=ON")/(EXIT')
...works great if all I want to do is force TLS 1.2. But there are a couple of
other environment variables that are really handy for debugging:
GSK_TRACE=0xFFFF and GSK_TRACE_FILE=/tmp/gskc.trc
and while:
//FTPXFER EXEC PGM=FTP,REGION=4M,
//
PARM=('ENVAR("GSK_PROTOCOL_TLSV1_2=ON","GSK_TRACE=0xFFFF","GSK_TRACE_FILE=/tmp/gskc.trc")/(EXIT')
...is possible, it pushes the limits of the PARM value's max length.
But I can add as many variables with CEEOPTS as I want:
//FTPXFER EXEC PGM=FTP,REGION=4M,PARM='(TIMEOUT 30 EXIT'
//CEEOPTS DD *
ENVAR("GSK_PROTOCOL_TLSV1_2=ON",
"GSK_TRACE=0xFFFF",
"GSK_TRACE_FILE=/tmp/gskb.trc")
//*
However, I did stumble across what a really wanted as I was closing out all the
web pages I had open for this.
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r2.halz002/ip_env_var_used_by_tcpip_appls.htm
...is the page I'd overlooked. It explains that while _CEE_ENVFILE requires a
VB255 dataset, _CEE_ENVFILE_S isn't so picky. So:
//FTPXFER EXEC PGM=FTP,REGION=4M,
// PARM=('ENVAR("_CEE_ENVFILE_S=DD:STDENV")/(TIMEOUT 30 EXIT')
//STDENV DD *
GSK_PROTOCOL_TLSV1_2=ON
//* GSK_TRACE=0xFFFF
//* GSK_TRACE_FILE=/tmp/gskc.trc
//SYSFTPD DD *
...is really what I was looking for in the first place. I can leave the TRACE
vars commented, but if there is a problem they can easily be un-commented and
the /tmp/gskc.trc file can be used to see exactly what's going on under the
covers. (BTW, this trace appears to provide a lot more information than
processing a GSKSRVR/GSKWRTR trace with IPCS and "CTRACE COMP(GSKSRVR)
DDNAME(IPTRACE) FULL"--but it's probable that I just don't know what I'm doing
with IPCS.)
Anyway, thanks again to all!
Wendell
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