Re: syslog insmod please!

Andreas Dilger (adilger@turbolinux.com)
Thu, 5 Apr 2001 22:42:04 -0600 (MDT)

Ion writes:
> Andrew Daviel <andrew@andrew.triumf.ca> wrote:
> > Is there a good reason why insmod should not call syslog() to log
> > any module that gets installed ?
>
> Simple: you'll have quite a bit of a problem if you are trying to insmod
> the module with support for AF_UNIX sockets. :-)

Why do it from user space? Simply add a printk() to sys_init_module() or
similar. Granted, this will only help until the lusers install a patched
sysklog before installing a backdoor module, but so would the user-space
solution. At least the kernel message will stay in kernel memory until
it is flushed out with more messages (which itself might be detectable).

Cheers, Andreas

-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert
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