Date: Mon, 2 Oct 2000 06:10:03 -0700 (PDT) From: Ruslan Ermilov <ru@sunbay.com> To: freebsd-bugs@FreeBSD.org Subject: Re: conf/21695: ifconfig_XXX_aliasY in rc.conf; Y must be in sequential order Message-ID: <200010021310.GAA95739@freefall.freebsd.org>
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The following reply was made to PR conf/21695; it has been noted by GNATS.
From: Ruslan Ermilov <ru@sunbay.com>
To: Pekka Savola <pekkas@netcore.fi>
Cc: bug-followup@FreeBSD.org
Subject: Re: conf/21695: ifconfig_XXX_aliasY in rc.conf; Y must be in sequential order
Date: Mon, 2 Oct 2000 16:01:12 +0300
On Mon, Oct 02, 2000 at 04:30:03AM -0700, Pekka Savola wrote:
[...]
> > Hmm, how would you expect it to work? rc.network scanning all possible
> > ifconfig_<iface>_alias<n>, where n is from 0 to infinity? I doubt this
> > would be practical.
>
> Well, this is a bit hackish approach, but an equivalent of:
>
> grep ^ifconfig_.*_alias /etc/rc.conf
>
> would probably be good.
>
Not if /usr/bin/grep is called when /usr is not yet mounted.
If you really need to have the ability to selectively turn on/off
aliases on your interface, the below might work. Besides that it
would allow you to selectively turn your aliases, it also has a
plus in that you may choose whatever name you wish for your alias
(much like the same as we do for ${static_routes}).
#!/bin/sh
network_interfaces="ed0"
ifconfig_ed0_aliases="foo bar"
ifconfig_ed0_alias_foo="alias_foo"
ifconfig_ed0_alias_bar="alias_bar"
for ifn in ${network_interfaces}; do
eval ifconfig_aliases=\$ifconfig_${ifn}_aliases
if [ -n "${ifconfig_aliases}" ]; then
for i in ${ifconfig_aliases}; do
eval ifconfig_args=\$ifconfig_${ifn}_alias_${i}
if [ -n "${ifconfig_args}" ]; then
echo ifconfig ${ifn} ${ifconfig_args} alias
eval showstat_$ifn=1
fi
done
fi
done
--
Ruslan Ermilov Oracle Developer/DBA,
ru@sunbay.com Sunbay Software AG,
ru@FreeBSD.org FreeBSD committer,
+380.652.512.251 Simferopol, Ukraine
http://www.FreeBSD.org The Power To Serve
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