[comp.protocols.kerberos] Having trouble starting up kerberos on a Pyramid MiServer

mfrost@BLOOM-BEACON.MIT.EDU (Mark Frost) (12/27/90)

Hello. I've got the kerberos sources up to patchlevel 9 and have spent the
last week and half trying to get it all up.

Most of the problems I've had were configuration difficulties, but now I
think I'm stuck.

I am able to start the kerberos server (/usr/etc/kerberos), and I can start
the kadmin daemon. I can also edit the database. When I try to use, kpasswd
(or even ksu), I seem to get a Bus error (core dumped) after I enter the
verified password.

After chasing this through the source code for a few days, I have finally
discovered that it is coming from one of the des routines, specifically,
pcbc_encrypt() (des_pcbc_encrypt() ?). The crash seems to come between the
lines indicated below (located at approximately line 113 in pcbc_encrypt.c)


#ifdef MUSTALIGN
            if ((long) input & 3) {
                bcopy((char *)input,(char *)&t_input[0],sizeof(t_input[0]));
                bcopy((char *)(input+1),(char *)&t_input[1],sizeof(t_input[1]));
            }
            else
#endif
            {
                t_input[0] = *input; /* Gets bus error on execution of this*/
                t_input[1] = *(input+1);
            }

            /* zero pad */
            if (length < 8) {
                for (j = length; j <= 7; j++)
                    *(t_in_p+j)= 0;
            }

What really puzzles me about this is that this code obviously works or else
the kerberos server wouldn't start up.

I am using Pyramid OSx 5.1a on an MiServer. I am using the conf-pyr.h 
configuration file -- I put it in by hand in osconf.h as it seems to get lost
otherwise. I have defined the following options in the config.Imakefile
file

BSD42
ATHENA_COMPAT
ATHENA
KERBEROS
VFS
NOTTYENT
ENCRYPTION
NDBM

Does anyone have any ideas as to why this is happening? I'm assuming that this
is the right place to post this -- if not, please direct me to where it
should be sent.

Thanks

          -m-----------  Mark Frost    (mfrost@pyramid.com)
        ---mmm---------  System Administrator - Hardware Engineering
      -----mmmmm-------  Pyramid Technology Corporation
    -------mmmmmmm-----  1295 Charleston Rd, P.O. Box 7295
  ---------mmmmmmmmm---  Mountain View, California 94039-7295 
-----------mmmmmmmmmmm-  (415) 335-8163

jtkohl@MIT.EDU (John T Kohl) (01/02/91)

If you look at a core dump, I suspect you'll find that the bus errors
occur in the cases where the "input" is not word-aligned.  It sounds
like the Pyramid is a machine on which "MUSTALIGN" is required for the
DES library to work properly.  Try putting
#define MUSTALIGN
in your config file(s), rebuilding DES, and relinking.

John