From mboxrd@z Thu Jan  1 00:00:00 1970
MIME-Version: 1.0
References: <20190620150435.GA31903@legohost>
In-Reply-To: <20190620150435.GA31903@legohost>
From: Charles Forsyth <charles.forsyth@gmail.com>
Date: Thu, 20 Jun 2019 17:34:03 +0100
Message-ID: <CAOw7k5hn5BEp9maxK-wjgYSJbBFy+9megiCjhiNjUzYGHrV8Ow@mail.gmail.com>
To: Oleg <lego12239@yandex.ru>,
	Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] linux 9p: uid & gid
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4294967294 probably started off as -2, which some systems used for user
"nobody"

On Thu, Jun 20, 2019 at 4:04 PM Oleg <lego12239@yandex.ru> wrote:

> Hi, all.
>
> I wrote a 9p fs with help of libixp and after mounting i see strange uid
> and
> gid numbers for files:
>
> ~# mount -t 9p -o trans=3Dunix,noextend q t
> ~# ls -l t
> -rw-rw-rw- 1 4294967294 4294967294 1 Jan  1  1970 conf
> -rw-rw-rw- 1 4294967294 4294967294 1 Jan  1  1970 data
> -rw-rw-rw- 1 4294967294 4294967294 1 Jan  1  1970 stat
>
> If i do mount with dfltuid and dfltgid, i get normal values:
>
> ~# mount -t 9p -o
> trans=3Dunix,noextend,trans=3Dunix,noextend,dfltuid=3D0,dfltgid=3D0 q t
> ~# ls -l t
> -rw-rw-rw- 1 root root 1 Jan  1  1970 conf
> -rw-rw-rw- 1 root root 1 Jan  1  1970 data
> -rw-rw-rw- 1 root root 1 Jan  1  1970 stat
>
> But in any case chown call to these files sends empty uid and gid strings
> in
> wstat T-message.
>
> Is there any way to make uid & gid works as expected?
>
> Thanks.
>
> --
> =D0=9E=D0=BB=D0=B5=D0=B3 =D0=9D=D0=B5=D0=BC=D0=B0=D0=BD=D0=BE=D0=B2 (Oleg=
 Nemanov)
>
>

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<div dir=3D"ltr"><span style=3D"color:rgb(0,0,0)">4294967294 probably start=
ed off as -2, which some systems used for user &quot;nobody&quot;</span><br=
></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr"=
>On Thu, Jun 20, 2019 at 4:04 PM Oleg &lt;<a href=3D"mailto:lego12239@yande=
x.ru">lego12239@yandex.ru</a>&gt; wrote:<br></div><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex">Hi, all.<br>
<br>
I wrote a 9p fs with help of libixp and after mounting i see strange uid an=
d<br>
gid numbers for files:<br>
<br>
~# mount -t 9p -o trans=3Dunix,noextend q t<br>
~# ls -l t<br>
-rw-rw-rw- 1 4294967294 4294967294 1 Jan=C2=A0 1=C2=A0 1970 conf<br>
-rw-rw-rw- 1 4294967294 4294967294 1 Jan=C2=A0 1=C2=A0 1970 data<br>
-rw-rw-rw- 1 4294967294 4294967294 1 Jan=C2=A0 1=C2=A0 1970 stat<br>
<br>
If i do mount with dfltuid and dfltgid, i get normal values:<br>
<br>
~# mount -t 9p -o trans=3Dunix,noextend,trans=3Dunix,noextend,dfltuid=3D0,d=
fltgid=3D0 q t<br>
~# ls -l t<br>
-rw-rw-rw- 1 root root 1 Jan=C2=A0 1=C2=A0 1970 conf<br>
-rw-rw-rw- 1 root root 1 Jan=C2=A0 1=C2=A0 1970 data<br>
-rw-rw-rw- 1 root root 1 Jan=C2=A0 1=C2=A0 1970 stat<br>
<br>
But in any case chown call to these files sends empty uid and gid strings i=
n<br>
wstat T-message.<br>
<br>
Is there any way to make uid &amp; gid works as expected?<br>
<br>
Thanks.<br>
<br>
-- <br>
=D0=9E=D0=BB=D0=B5=D0=B3 =D0=9D=D0=B5=D0=BC=D0=B0=D0=BD=D0=BE=D0=B2 (Oleg N=
emanov)<br>
<br>
</blockquote></div>

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