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On Thu, 2004-09-30 at 14:39, Chris L. Mason wrote: |
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> On Thu, 30 Sep 2004 19:50:13 +0200, Simon Stelling <blubb@g.o> wrote: |
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> > |
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> > Guys, it's not the idea of UNIX to install a software-package without |
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> > root-access. Why do you want to install something without beeing root? |
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> |
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> I'm not sure about some of the other posts, but that wasn't my |
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> intention. I believe the standard (and secure) UNIX way has always |
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> been to compile stuff yourself (i.e. in your home directory) and then |
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> su to root for the "make install". Basically I was just looking for a |
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> way to do that with emerge (i.e. calling "sudo" for the actual copy of |
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> files into /). That's what OpenBSD does, and they tend to set the |
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> example in secure practises. |
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> |
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> This should be easily doable without any kernel modules or other such magic. |
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The idea seemed simple enough to me so I wrote a real quick wrapper |
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script to see how hard it would be do it. few mins of hacking later.. |
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Your right it's not so hard at all. Atleast from a wrapper script. |
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Here is what the end result gives us. |
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--- USER EBUILD_PHASE |
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>>> solar phase(clean) |
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>>> solar phase(setup) |
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>>> solar phase(unpack) |
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>>> solar phase(compile) |
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>>> solar phase(test) |
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>>> solar phase(install) |
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>>> solar phase(package) |
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--- call remaining phases with root privs |
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>>> root phase(setup) |
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>>> root phase(preinst) |
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>>> root phase(prerm) |
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>>> root phase(postrm) |
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>>> root phase(postinst) |
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I would not really consider this any more secure by any means. An |
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attacker can still take control of your system via other methods. |
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But as far as keeping ebuilds from major screwups like rm -rf ${TYPO}/* |
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this should do the trick. |
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http://dev.gentoo.org/~solar/portage_misc/emerge-wrapper |
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I've only tested with some fairly small packages. No idea how a kernel |
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module or whatever would be handled. |
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If you build an the idea please share your changes with me. I'm all for |
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handling as many phases as we can as non root. Assuming it does not lead |
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to us having to install some new suid bin todo it. |
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> |
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> |
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> Chris |
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> |
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> -- |
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> gentoo-dev@g.o mailing list |
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-- |
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Ned Ludd <solar@g.o> |
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Gentoo (hardened,security,infrastructure,embedded,toolchain) Developer |
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