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From: Adhemerval Zanella via Libc-alpha <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Subject: Re: [PATCH 4/5] login: User 64-bit time on struct lastlog
Date: Thu, 30 Jul 2020 18:53:37 -0300	[thread overview]
Message-ID: <f72fb705-47f4-a1de-5ba7-6631f80c2057@linaro.org> (raw)
In-Reply-To: <alpine.DEB.2.21.2007301847090.4324@digraph.polyomino.org.uk>



On 30/07/2020 15:54, Joseph Myers wrote:
> On Thu, 30 Jul 2020, Florian Weimer via Libc-alpha wrote:
> 
>> Sounds reasonable.  We also have a security bug that is related to
>> direct access to these files:
>>
>>   <https://sourceware.org/bugzilla/show_bug.cgi?id=24492>
>>
>> If we need to mediate access for format translation, maybe this can be
>> addressed at the same time?
> 
> Having different filenames for the new format might be safest, which would 
> naturally go along with having some form of mediation for access to utmp / 
> wtmp / lastlog.
> 

The different filename sound slike a strategy and I understand that the idea
would also to use new versions for the utmp/utmpx symbols. What about the 
compatibility symbols, should them be built on top of the new ABI and access
the newer files or use the old format and access the old filenames?

As for lastlog, I think it would be feasible to provide a API to mediate
the file access as a GNU extension.

  reply	other threads:[~2020-07-30 21:53 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29 20:51 [PATCH 1/5] login: Consolidate utmp and utmpx headers Adhemerval Zanella via Libc-alpha
2020-07-29 20:51 ` [PATCH 2/5] login: Move gnu utmpx to default implementaion Adhemerval Zanella via Libc-alpha
2020-10-22  8:15   ` Lukasz Majewski
2020-10-22  9:16   ` Andreas Schwab
2020-07-29 20:51 ` [PATCH 3/5] login: Add 64-bit time support Adhemerval Zanella via Libc-alpha
2020-07-29 21:17   ` Joseph Myers
2020-07-30 12:34     ` Adhemerval Zanella via Libc-alpha
2020-08-02 19:02       ` Maciej W. Rozycki via Libc-alpha
2020-08-02 22:05         ` Adhemerval Zanella via Libc-alpha
2020-10-22  9:16   ` Lukasz Majewski
2020-07-29 20:51 ` [PATCH 4/5] login: User 64-bit time on struct lastlog Adhemerval Zanella via Libc-alpha
2020-07-29 21:04   ` Andreas Schwab
2020-07-29 21:14   ` Andreas Schwab
2020-07-30 12:39     ` Adhemerval Zanella via Libc-alpha
2020-07-30 16:19       ` Florian Weimer via Libc-alpha
2020-07-30 18:54         ` Joseph Myers
2020-07-30 21:53           ` Adhemerval Zanella via Libc-alpha [this message]
2020-07-31  0:31             ` Joseph Myers
2020-07-30 21:46         ` Adhemerval Zanella via Libc-alpha
2020-10-22  9:25   ` Lukasz Majewski
2020-07-29 20:51 ` [PATCH 5/5] Remove __WORDSIZE_TIME64_COMPAT32 Adhemerval Zanella via Libc-alpha
2020-10-22  9:31   ` Lukasz Majewski
2020-07-29 21:08 ` [PATCH 1/5] login: Consolidate utmp and utmpx headers Joseph Myers
2020-07-30 12:36   ` Adhemerval Zanella via Libc-alpha
2020-10-22  8:06 ` Lukasz Majewski

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