1. 17 Jan, 2004 1 commit
    • David Anderson's avatar
      Checkpoint commit. I've added the static-linked program "ltevent" to send · c6911250
      David Anderson authored
      and wait for linktest events, and integrated it into the perl scripts.
      
      At this point I'm working on small potatoes such as the rc.setup script
      to invoke linktest daemon and nailing down where to put platform-specific
      stuff such as the ns-linktest build and the customized tb-compat.
      
      Also am testing linktest in cases where I've deliberately inserted an error
      to make sure it catches it.
      c6911250
  2. 14 Jan, 2004 1 commit
    • David Anderson's avatar
      Updates to Linktest for a caller script, run_linktest.pl. · 5a1ab5a8
      David Anderson authored
      This includes an updated client-install.
      
      However, this is not yet ready for builds due to certain libraries not
      present on the nodes and ops. For those I will be writing a static
      linked c program to handle the linktest "done" event in both linktest.pl
      and run_linktest.pl.
      5a1ab5a8
  3. 16 Dec, 2003 1 commit
  4. 24 Nov, 2003 1 commit
  5. 05 Nov, 2003 1 commit
    • Leigh B. Stoller's avatar
      Middle part of the event system changes. The main part of this change · 54bc15c4
      Leigh B. Stoller authored
      is to add HMACs to events to ensure they that events cannot be
      injected into an experiment by an unauthorized client.
      
      * The frontend now generates a secret key for each experiment and
        stores that into a file and in the DB.
      
      * Each of the event clients, as well as the event producers
        (scheduler, tevc) have a new -k option to specify the name of the
        file. Two new event library functions were added for clients to give
        the key:
      
          event_handle_t
          event_register_withkeyfile(char *name, int threaded, char *keyfile);
      
          event_handle_t
          event_register_withkeydata(char *name, int threaded,
      	   		       unsigned char *keydata, int keylen);
      
      * When the library is in possesion of a key, it will generate an HMAC
        and attach it to outgoing notifications. A client receiving a
        notification will compute an HMAC and compare it against the HMAC in
        the notification. If they do not compare, the notification is
        dropped with a warning message printed (the client callback never
        gets the notification). If the client has not provided a key, then
        the HMAC in the incoming notification is ignored.
      
      * The scheduler also takes a -k option, and will compute HMACs for all
        of the static events ahead of time. That keeps it off the critical
        path.
      
      * The tevc client also takes a -k option. However, tevc will always
        try to find the keyfile (default path) so that it can attach the
        HMAC to dynamic events before sending them to the scheduler (which
        will check to make sure it matches). The scheduler will not accept
        dynamic events without unless the HMAC is present and matches.
      
      * I have rebuilt the elvin librarys, removing all of the X goop and
        the SSL goop. Smaller binaries. So, I had to add -lcrypto to all of
        the client makefiles to that programs link.
      
      * The program-agent got a few more changes. The command string is no
        longer passed inside the event; it comes in when the program agent
        is started, via a config file generated from tmcd data. This gets
        rid of our mostly insecure remote execution facility.
      54bc15c4
  6. 30 Sep, 2003 1 commit
  7. 10 Jun, 2003 1 commit
  8. 18 Dec, 2002 1 commit
  9. 10 Jul, 2002 1 commit
  10. 22 Mar, 2002 1 commit
    • Leigh B. Stoller's avatar
      New "program agent" that runs on the client nodes (freebsd and linux) · 187a3a18
      Leigh B. Stoller authored
      and reponds to PROGRAM events. Currently, just start and stop. Start
      takes a COMMAND= argument, and allows arbitrary command lines since I
      pass the whole thing off to the shell. Caveat; the agent runs as root
      and starts the program as root. You can has as many program objects in
      your NS file as you like, but each one can be started once; you have
      to either stop or wait for the old one to finish before trying to
      start again.
      187a3a18
  11. 07 Mar, 2002 1 commit
    • Leigh B. Stoller's avatar
      Isolate the pain of building threaded (and statically linked) event · 4dad8ebe
      Leigh B. Stoller authored
      system programs. Build two versions of the event library, one for non
      threaded programs and another (libevent_r.a) for threaded versions.
      Remove all that -pthread goo from all of the makefiles, except for the
      scheduler (which is threaded); it gets linked as before, but with
      -levent_r instead. If you try and use the threaded API without the
      proper link, the library will print an error message and quit.
      4dad8ebe
  12. 05 Mar, 2002 1 commit
  13. 24 Feb, 2002 1 commit
  14. 19 Feb, 2002 1 commit