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From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH 4/7] syscalls/kill05: Use any two unprivileged users
Date: Mon, 6 Sep 2021 14:28:00 +0200	[thread overview]
Message-ID: <YTYJUPFc75TuOJSb@yuki> (raw)
In-Reply-To: <20210903154848.18705-5-mdoucha@suse.cz>

Hi!
> Usernames such as "bin" may not exist on some systems. Find and use any two
> unprivileged user IDs for the test instead of specific named users.

I do wonder if we have to lookup the UIDs in this case. As long as I
understand the test correctly we are testing that no signals are send to
a process if the sender real of effective UID do not match either of
real and saved set UIDs of the receiving process. If my understanding is
correct we can just take two arbitrary UIDs that != 0 and the test
should work just fine.

-- 
Cyril Hrubis
chrubis@suse.cz

WARNING: multiple messages have this Message-ID (diff)
From: Cyril Hrubis <chrubis@suse.cz>
To: Martin Doucha <mdoucha@suse.cz>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH 4/7] syscalls/kill05: Use any two unprivileged users
Date: Mon, 6 Sep 2021 14:28:00 +0200	[thread overview]
Message-ID: <YTYJUPFc75TuOJSb@yuki> (raw)
Message-ID: <20210906122800.q-A0LYEHYJG5tlUVWSfc6aXCfckmQntyt1xfp2zvuxY@z> (raw)
In-Reply-To: <20210903154848.18705-5-mdoucha@suse.cz>

Hi!
> Usernames such as "bin" may not exist on some systems. Find and use any two
> unprivileged user IDs for the test instead of specific named users.

I do wonder if we have to lookup the UIDs in this case. As long as I
understand the test correctly we are testing that no signals are send to
a process if the sender real of effective UID do not match either of
real and saved set UIDs of the receiving process. If my understanding is
correct we can just take two arbitrary UIDs that != 0 and the test
should work just fine.

-- 
Cyril Hrubis
chrubis@suse.cz

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

  reply	other threads:[~2021-09-06 12:28 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-03 15:48 [LTP] [PATCH 0/7] UID/GID lookup fixes Martin Doucha
2021-09-03 15:48 ` [LTP] [PATCH 1/7] chmod05, fchmod05: Use free GID instead of "bin" group Martin Doucha
2021-09-06 12:20   ` Cyril Hrubis
2021-09-06 12:20     ` Cyril Hrubis
2021-09-03 15:48 ` [LTP] [PATCH 2/7] Simplify syscalls/mkdir02 Martin Doucha
2021-09-06 12:20   ` Cyril Hrubis
2021-09-06 12:20     ` Cyril Hrubis
2021-09-03 15:48 ` [LTP] [PATCH 3/7] Add user/group ID lookup helper functions Martin Doucha
2021-09-06 12:21   ` Cyril Hrubis
2021-09-06 12:21     ` Cyril Hrubis
2021-09-06 12:40     ` Martin Doucha
2021-09-06 12:40       ` Martin Doucha
2021-09-03 15:48 ` [LTP] [PATCH 4/7] syscalls/kill05: Use any two unprivileged users Martin Doucha
2021-09-06 12:28   ` Cyril Hrubis [this message]
2021-09-06 12:28     ` Cyril Hrubis
2021-09-06 12:47     ` Martin Doucha
2021-09-06 12:47       ` Martin Doucha
2021-09-06 12:50       ` Cyril Hrubis
2021-09-06 12:50         ` Cyril Hrubis
2021-09-06 13:01         ` Martin Doucha
2021-09-06 13:01           ` Martin Doucha
2021-09-06 13:05           ` Cyril Hrubis
2021-09-06 13:05             ` Cyril Hrubis
2021-09-06 13:27             ` Martin Doucha
2021-09-06 13:27               ` Martin Doucha
2021-09-06 13:02         ` Cyril Hrubis
2021-09-06 13:02           ` Cyril Hrubis
2021-09-03 15:48 ` [LTP] [PATCH 5/7] syscalls/mkdir04: Simplify test and use any existing users Martin Doucha
2021-09-03 15:48 ` [LTP] [PATCH 6/7] syscalls/setregid02-04: Simplify GID handling Martin Doucha
2021-09-03 15:48 ` [LTP] [PATCH 7/7] syscalls/setregid02-04: Eliminate named group lookups Martin Doucha

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