samba 3.0.x build problems with Heimdal 0.6.3 krb5

[Luke Mewburn]

Hi all.

I have been building samba 3.0.7 on NetBSD-current which uses
Heimdal 0.6.3 as the krb5 implementation, using a custom make
infrastructure that enables a higher level of build warnings
than samba's default build [*].

This build highlights the following discrepency between Heimdal's
<krb5.h> and Samba's libads/krb5_setpw.c:

    Heimdal <krb5.h>
	#define KRB5_KPASSWD_VERS_CHANGEPW      1
	#define KRB5_KPASSWD_VERS_SETPW         0xff80

    Samba libads/krb5_setpw.c
	#define KRB5_KPASSWD_VERS_CHANGEPW      1
	#define KRB5_KPASSWD_VERS_SETPW         2
	#define KRB5_KPASSWD_VERS_SETPW_MS      0xff80

As far as I can tell, KRB5_KPASSWD_VERS_SETPW was changed
from 0xff80 to 2 in rev 1.12 of krb5_setpw.c.  The CVS commit
log for that entry doesn't provide specific details as to why
this occurred; 0xff80 is the value that RFC3244 and M$ seem to
use, and I can't easily determine why it was changed to `2'
in rev 1.12.

I submitted the samba bug & proposed patch in:
	https://bugzilla.samba.org/show_bug.cgi?id=1661

Is anyone aware why samba changed KRB5_KPASSWD_VERS_SETPW
from 0xff80 to 2 ?


Thanks,
Luke.


[*] This same infrastructure builds samba using a libsamba.so which means
    samba 3.0.7 consumes ~ 3.5 MB of space instead of 20+ MB, which is
    important for space constrained embedded environments.  Even using a
    libsamba.a drops the space to 16MB.
    I've discussed this concept privately with tridge, and I can elaborate
    more in a separate post.
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