DC619 Training LPAR

The file DC619 - Mainframe Overflows Hands On.pdf contains the labs and walks through how to perform them.

Use docker

You can use docker instead of building from scratch: https://hub.docker.com/r/mainframed767/mvsce_dc619

Building from scratch

• Download the most recent version of MVSCE from https://github.com/MVS-sysgen/sysgen/releases
• Launch MVSCE
• Install Review Front end:
  • Logon to MVSCE
  • At the TSO ready prompt: RX MVP INSTALL REVIEW
• Submit the job logon_screen.JCL: cat logon_screen.JCL|ncat --send-only -w1 127.0.0.1 3505
• Submit the job motd.jcl: cat motd.jcl|ncat --send-only -w1 127.0.0.1 3505
• Submit the job terminal.jcl: cat terminal.jcl|ncat --send-only -w1 127.0.0.1 3505
• Submit the job make_staging.jcl: cat make_staging.jcl|ncat --send-only -w1 127.0.0.1 3505
• Using RFE in TSO edit SYS1.VTAMLST(ATCCON00) and replace LCL400 with DC619T
• Edit SYS1.PARMLIB members:
  • IEASYS00 and change MAXUSERS to 32
  • IKJTSO00 and change USERMAX to 32
• Install https://github.com/mvslovers/rdrprep on your Linux box
• Clone https://github.com/mvslovers/jcc to this folder
• Compile hello.c:
  • ./jcc/jcc -I./jcc/include -o hello.c
  • ./jcc/prelink -s ./jcc/objs hello.load hello.obj
• Copy hello.load to users: cp hello.load users
• Run usersjcl.py: python3 usersjcl.py
• Convert each job in the users folder with rdrprep and submit them one by one:
  • for i in *.jcl; do echo $i;rdrprep $i;cat reader.jcl|ncat --send-only -w1 172.17.0.3 3506; read; done
  • You can check the output of MVSCE printers/prt00e.txt to see each job completed
• Shutdown MVS/CE
• Re-IPL MVS/CE and enjoy your lab environment

Files

• hello.c vulnerable C program from https://github.com/jake-mainframe/GETSPLOIT
• EBCDIC files LGBT400, LOC400 and WTO400
• Dockerfile used to build docker image from the contents for ./dasd: https://github.com/jake-mainframe/GETSPLOIT
• logon_screen.ans/logon_screen.JCL: ANSI/JCL to replace the NETSOL logon screen
• motd.jcl replaces the TSO logon clist
• terminal.jcl adds 32 new terminal interfaces and updates VTAM config
• usersjcl.py creates DC00.jcl through DC29.jcl in the ./users folder