Date: Mon, 15 Oct 2007 13:21:15 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: Alexander Leidinger <netchild@FreeBSD.org> Cc: Wilko Bulte <wb@freebie.xs4all.nl>, Poul-Henning Kamp <phk@phk.freebsd.dk>, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, cvs-src@FreeBSD.org Subject: Re: cvs commit: src/etc Makefile sensorsd.conf src/etc/defaults rc.conf src/etc/rc.d Makefile sensorsd src/lib/libc/gen sysctl.3 src/sbin/sysctl sysctl.8 sysctl.c src/share/man/man5 rc.conf.5 src/share/man/man9 Makefile sensor_attach.9 src/sys/conf files ... Message-ID: <20071015202115.GP39759@funkthat.com> In-Reply-To: <20071015210909.1b6b693b@deskjail> References: <20071015152408.10kvgtog6cooc4wc@webmail.leidinger.net> <48258.1192460507@critter.freebsd.dk> <20071015210909.1b6b693b@deskjail>
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Alexander Leidinger wrote this message on Mon, Oct 15, 2007 at 21:09 +0200:
> > >I already told you last time
> > >that the current way (access to the i2c or smbus) needs more access
> > >rights than using the userland parts of the sensors framework.
> >
> > More rights than what exactly ?
>
> One popular userland temperature/voltage reading tool (as it supports a
> lot of popular devices) is mbmon. It is currently a SUID root
> application. It is like this as it accesses the smbus and/or ISA I/O
> ports directly. If we forget the ISA I/O ports part, we could maybe
> switch to a mbmon-user, but I don't really want to have such an user be
> able to query every device on the smbus.
>
> systat and sysctl are not SUID/SGID and don't require some special
> rights in /dev. I would say this is a big difference in favour of the
> sensors framework.
Did you completely ignore the discussion back in July? I didn't bring
it up, because someone else did, but the simple solution is a socket
like /var/run/log or /var/run/devd.pipe, that a userland daemon running
as root that has access to ISA I/O and related resources... It's
that simple...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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