From tlyu@MIT.EDU Tue Apr 13 16:35:16 1999
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Message-Id: <199904122012.QAA28924@fuseki.aa.ans.net>
Date: Mon, 12 Apr 1999 16:12:51 -0400
From: michael shiplett <walrus@ans.net>
To: krb5-bugs@mit.edu (was krbcore@MIT.EDU)
Subject: value of krb4_srvtab not observed
Ann Arbor
Architecture: sun4
System: SunOS euro.aa.ans.net 5.6 Generic_105181-12 sun4u sparc SUNW,Ultra-60
Architecture: sun4
System: AIX aixinst.aa.ans.net 2 3 000021334100
of krb4_srvtab; hence, k4 compatibility is broken unless /etc/srvtab
is (or points to) the location of the v4 srvtab.
It appears the problem is in the changes to src/lib/krb4/g_cnffile.c.
I do not know at this time whether the problem is in parsing all of
krb5.conf or just the krb4_srvtab information.
than /etc/srvtab.
2. Make an entry to the libdefaults section of /etc/krb5.conf
setting krb4_srvtab to the new location.
3. Attempt to rsh/rlogin in using v4 client---it will work under
krb5-1.0.5 but fail under krb5-1.0.6-beta2.
ln -s <actual_v4_srvtab_file> /etc/srvtab
correct:
fix the offending code (I haven't found it yet).
Responsible-Changed-From-To: krb5-unassigned->tlyu
Responsible-Changed-By: tlyu
Responsible-Changed-When: Tue Apr 13 20:06:55 1999
Responsible-Changed-Why:
refiled
From: Tom Yu <tlyu@MIT.EDU>
To: walrus@ans.net
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Tue, 13 Apr 1999 20:11:36 -0400 (EDT)
What are the exact contents of your /etc/krb5.conf? There have been
changes to the profile library that might be causing this problem.
Can you trace through a call through krb5__get_srvtabname to see which
of krb5_init_context() or profile_get_values() is failing if you
happen to have debugging symbols compiled in? That would be immensely
helpful.
---Tom
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Wed, 14 Apr 1999 14:09:14 -0400
"ty" == Tom Yu <Tom> writes:
/etc/krb5.conf
[libdefaults]
krb4_srvtab = /etc/krb-srvtab
krb4_realms = /usr/kerberos/lib/krb.realms
krb4_config = /usr/kerberos/lib/krb.conf
[login]
krb4_get_tickets = 0
krb_convert = 0
krb_run_aklog = 0
profile_get_values() is the function which fails (providing the
default of ``/etc/srvtab''). I tried various ordering combinations and
eliminating all config lines except the top two to no avail.
michael
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Wed, 14 Apr 1999 15:05:28 -0400
The if clause
if (krb5__krb4_context &&
(retval = profile_get_values(krb5__krb4_context->profile, names,
&full_name))
&& retval == 0 && full_name && full_name[0]) {
[...]
}
is contradictory---the assignment to retval can't be not 0 and 0.
The following is cleaner and works.
if (krb5__krb4_context &&
profile_get_values(krb5__krb4_context->profile, names, &full_name))
&& full_name && full_name[0]) {
}
michael
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Thu, 15 Apr 1999 13:28:19 -0400
There was an error in my previous message regarding a fix for this
bug.
The clause from krb__get_srvtabname should be
if (krb5__krb4_context
&& !profile_get_values(krb5__krb4_context->profile, names, &full_name)
&& full_name && full_name[0])
I had neglected to negate of the return value from profile_get_values()
michael
State-Changed-From-To: open-closed
State-Changed-By: tlyu
State-Changed-When: Mon May 24 18:26:00 1999
State-Changed-Why:
Thanks; fixed in 1.0.6
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for <krbcore@mit.edu>; Mon, 12 Apr 1999 16:12:51 -0400 (EDT)
Message-Id: <199904122012.QAA28924@fuseki.aa.ans.net>
Date: Mon, 12 Apr 1999 16:12:51 -0400
From: michael shiplett <walrus@ans.net>
To: krb5-bugs@mit.edu (was krbcore@MIT.EDU)
Subject: value of krb4_srvtab not observed
Show quoted text
>Number: 712
>Category: krb5-libs
>Synopsis: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: tlyu
>State: closed
>Class: sw-bug
>Submitter-Id: unknown
>Arrival-Date: Tue Apr 13 16:36:02 EDT 1999
>Last-Modified: Mon May 24 18:26:15 EDT 1999
>Originator: michael shiplett
>Organization:
UUNET>Category: krb5-libs
>Synopsis: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: tlyu
>State: closed
>Class: sw-bug
>Submitter-Id: unknown
>Arrival-Date: Tue Apr 13 16:36:02 EDT 1999
>Last-Modified: Mon May 24 18:26:15 EDT 1999
>Originator: michael shiplett
>Organization:
Ann Arbor
Show quoted text
>Release: krb5-1.0.6-beta2
>Environment:
System: SunOS fuseki.aa.ans.net 5.5.1 Generic_103640-24 sun4u sparc SUNW,Ultra-1>Environment:
Architecture: sun4
System: SunOS euro.aa.ans.net 5.6 Generic_105181-12 sun4u sparc SUNW,Ultra-60
Architecture: sun4
System: AIX aixinst.aa.ans.net 2 3 000021334100
Show quoted text
>Description:
klogind and kshd are unable to read /etc/krb5.conf to find the valueof krb4_srvtab; hence, k4 compatibility is broken unless /etc/srvtab
is (or points to) the location of the v4 srvtab.
It appears the problem is in the changes to src/lib/krb4/g_cnffile.c.
I do not know at this time whether the problem is in parsing all of
krb5.conf or just the krb4_srvtab information.
Show quoted text
>How-To-Repeat:
1. Move the v4 srvtab to a non-default location, i.e., somewhere otherthan /etc/srvtab.
2. Make an entry to the libdefaults section of /etc/krb5.conf
setting krb4_srvtab to the new location.
3. Attempt to rsh/rlogin in using v4 client---it will work under
krb5-1.0.5 but fail under krb5-1.0.6-beta2.
Show quoted text
>Fix:
kluge:ln -s <actual_v4_srvtab_file> /etc/srvtab
correct:
fix the offending code (I haven't found it yet).
Show quoted text
>Audit-Trail:
Responsible-Changed-From-To: krb5-unassigned->tlyu
Responsible-Changed-By: tlyu
Responsible-Changed-When: Tue Apr 13 20:06:55 1999
Responsible-Changed-Why:
refiled
From: Tom Yu <tlyu@MIT.EDU>
To: walrus@ans.net
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Tue, 13 Apr 1999 20:11:36 -0400 (EDT)
What are the exact contents of your /etc/krb5.conf? There have been
changes to the profile library that might be causing this problem.
Can you trace through a call through krb5__get_srvtabname to see which
of krb5_init_context() or profile_get_values() is failing if you
happen to have debugging symbols compiled in? That would be immensely
helpful.
---Tom
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Wed, 14 Apr 1999 14:09:14 -0400
"ty" == Tom Yu <Tom> writes:
Show quoted text
ty> What are the exact contents of your /etc/krb5.conf? There have
ty> been changes to the profile library that might be causing this
ty> problem. Can you trace through a call through krb5__get_srvtabname
ty> to see which of krb5_init_context() or profile_get_values() is
ty> failing if you happen to have debugging symbols compiled in? That
ty> would be immensely helpful.
ty> been changes to the profile library that might be causing this
ty> problem. Can you trace through a call through krb5__get_srvtabname
ty> to see which of krb5_init_context() or profile_get_values() is
ty> failing if you happen to have debugging symbols compiled in? That
ty> would be immensely helpful.
/etc/krb5.conf
[libdefaults]
krb4_srvtab = /etc/krb-srvtab
krb4_realms = /usr/kerberos/lib/krb.realms
krb4_config = /usr/kerberos/lib/krb.conf
[login]
krb4_get_tickets = 0
krb_convert = 0
krb_run_aklog = 0
profile_get_values() is the function which fails (providing the
default of ``/etc/srvtab''). I tried various ordering combinations and
eliminating all config lines except the top two to no avail.
michael
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Wed, 14 Apr 1999 15:05:28 -0400
The if clause
if (krb5__krb4_context &&
(retval = profile_get_values(krb5__krb4_context->profile, names,
&full_name))
&& retval == 0 && full_name && full_name[0]) {
[...]
}
is contradictory---the assignment to retval can't be not 0 and 0.
The following is cleaner and works.
if (krb5__krb4_context &&
profile_get_values(krb5__krb4_context->profile, names, &full_name))
&& full_name && full_name[0]) {
}
michael
From: michael shiplett <walrus@ans.net>
To: Tom Yu <tlyu@MIT.EDU>
Cc: krb5-bugs@MIT.EDU
Subject: Re: krb5-libs/712: kshd/klogind parse /etc/krb5.conf:libdefaults:krb4_srvtab incorrectly.
Date: Thu, 15 Apr 1999 13:28:19 -0400
There was an error in my previous message regarding a fix for this
bug.
The clause from krb__get_srvtabname should be
if (krb5__krb4_context
&& !profile_get_values(krb5__krb4_context->profile, names, &full_name)
&& full_name && full_name[0])
I had neglected to negate of the return value from profile_get_values()
michael
State-Changed-From-To: open-closed
State-Changed-By: tlyu
State-Changed-When: Mon May 24 18:26:00 1999
State-Changed-Why:
Thanks; fixed in 1.0.6
Show quoted text
>Unformatted: