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From: YAMANASHI Takeshi <9.nashi@gmail.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] remove files in /srv
Date: Tue,  1 Feb 2005 12:48:10 +0900	[thread overview]
Message-ID: <76195867b7c075504e92d249a17df2ea@orthanc.cc.titech.ac.jp> (raw)

On Tue Feb  1 12:21:37 JST 2005, arisawa@ar.aichi-u.ac.jp wrote:
> >Anyone can replace files in /srv.  Bad things won't
> >happen if /srv/boot has been replaced by a malicious user?
 :
> su# rm boot
> rm: boot: permission denied

oops.  you can surely remove /srv/dns though.
what's the difference between boot and dns...?

I got it: #s is doing a special treatment for boot in
/sys/src/9/port/devsrv.c:/^srvremove .
	if(strcmp(sp->name, "boot") == 0)
		error(Eperm);

I'd rather have #s only removable by hostowner/file owner instead.
Would this change break something?
-- 




             reply	other threads:[~2005-02-01  3:48 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-01  3:48 YAMANASHI Takeshi [this message]
2005-02-01  4:06 ` arisawa
2005-02-01  4:33   ` Russ Cox
2005-02-01  4:49     ` [9fans] allocb question Tim Newsham
2005-02-01 20:31     ` [9fans] remove files in /srv rog
2005-02-02 23:22       ` Bruce Ellis
2005-02-02 23:57         ` Charles Forsyth
  -- strict thread matches above, loose matches on Subject: below --
2005-02-01  4:05 YAMANASHI Takeshi
2005-02-01  4:44 ` geoff
2005-02-01  1:11 YAMANASHI Takeshi
2005-02-01  3:21 ` arisawa
2005-02-01  3:56 ` Russ Cox

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