From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: shadow.h
Date: Wed, 27 Feb 2013 11:54:08 -0500 [thread overview]
Message-ID: <20130227165408.GJ20323@brightrain.aerifal.cx> (raw)
In-Reply-To: <CAPLrYESo0pbrDxpuKgkSKeiUp_emMXrHwb88FzhZU67Jk_ju9A@mail.gmail.com>
On Wed, Feb 27, 2013 at 10:09:18AM +0100, Daniel Cegiełka wrote:
> 2013/2/27 Rich Felker <dalias@aerifal.cx>:
> > On Tue, Feb 26, 2013 at 11:54:58PM +0100, Daniel Cegiełka wrote:
>
> >> Error relocating /lib/security/pam_unix.so: putspent: symbol not found
> >> Error relocating /lib/security/pam_unix.so: fgetspent: symbol not found
> >> Error relocating /lib/security/pam_unix.so: putpwent: symbol not found
> >
> > These have been discussed before and I believe the intent is to add
> > them (they're simple fprintf wrappers, if I remember correctly),
>
> ....or can be removed from shadow.h.
>
> > but
> > be aware that pam_unix.so's support for writing to the password
> > database assumes a certain form and will break things badly if the
> > user is using tcb shadow. It might also mess up the shadow file if it
> > depends on being able to iterate all entries in the shadow file; I'm
> > not sure if that works or not.
> >
> > These are issues that need more discussion...
>
> I prefer tcb, but the current implementation in musl isn't as
> functional as owl's (privilege separation):
Can you explain this better? I don't think the code in libc has
anything to do with privilege separation model used. It only *reads*
the tcb shadow data; it doesn't write anything, and it doesn't depend
on any particular permissions model for the data except that it be
readable by whichever user is doing authenticating.
Rich
next prev parent reply other threads:[~2013-02-27 16:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 22:54 shadow.h Daniel Cegiełka
2013-02-26 23:19 ` shadow.h Szabolcs Nagy
2013-02-27 8:24 ` shadow.h Daniel Cegiełka
2013-02-27 16:52 ` shadow.h Rich Felker
2013-02-27 17:18 ` shadow.h Daniel Cegiełka
2013-02-26 23:35 ` shadow.h Rich Felker
2013-02-27 9:09 ` shadow.h Daniel Cegiełka
2013-02-27 16:54 ` Rich Felker [this message]
2013-02-27 17:04 ` shadow.h Daniel Cegiełka
2013-02-27 17:06 ` shadow.h Rich Felker
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