[gentoo-dev] Problem with net.eth1 startup script

[gentoo-dev] Problem with net.eth1 startup script

[Todd Punderson]

Hello,
        After doing a update --world to upgrade about 2 months worth of
packages, I ran into this problem. I was following the directions to set
up multiple network cards. Here is what I have done so far and some
snippets of my config files.

I edited /etc/conf.d/net to look like this: (edited for clarity, the
rest of the file is commented lines)

iface_eth0="192.168.0.1 broadcast 192.168.0.255 netmask 255.255.255.0"
iface_eth1="dhcp"
dhcpcd_eth1="-R"

NOTE: eth0 configures correctly on bootup. The drivers for the network
card are also loaded properly. If I run dhcpcd manually, it works fine.

I copied net.eth0 to net.eth1 as per the directions.
From net.eth1:
        if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
        then
                eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
        else
                eval /sbin/dhcpcd "\$\{dhcpcd_${IFACE}\}" "$IFACE" >/dev/null 2>&1 || return $?
        fi

The problem is that net.eth1 will not start up as dhcp. I edited the
net.eth1 to see what it was trying to do by throwing some echo's in just
to see where it was...Everytime no matter what the setting is in
conf.d/net, it will only hit the "then" off that if statement. I hacked
the script to look like this:

        if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
        then
                eval /sbin/dhcpcd -R eth1 >/dev/null 2>&1 || return $?
        else
                eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
        fi

This works for the time being, but I'd like to correct the root cause of
the problem. While starting up, it says "Bringing eth1 up" so I know
$IFACE has the correct value. But I am stumped as to why the rest isn't
working.

Any help is appreciated!
-- 
Todd Punderson <todd@doonga.net>

Re: [gentoo-dev] Problem with net.eth1 startup script

[Martin Schlemmer]

[-- Attachment #1: Type: text/plain, Size: 2168 bytes --]

On Thu, 2002-03-07 at 09:05, Todd Punderson wrote:
> Hello,
>         After doing a update --world to upgrade about 2 months worth of
> packages, I ran into this problem. I was following the directions to set
> up multiple network cards. Here is what I have done so far and some
> snippets of my config files.
> 
> I edited /etc/conf.d/net to look like this: (edited for clarity, the
> rest of the file is commented lines)
> 
> iface_eth0="192.168.0.1 broadcast 192.168.0.255 netmask 255.255.255.0"
> iface_eth1="dhcp"
> dhcpcd_eth1="-R"
> 
> NOTE: eth0 configures correctly on bootup. The drivers for the network
> card are also loaded properly. If I run dhcpcd manually, it works fine.
> 
> I copied net.eth0 to net.eth1 as per the directions.
> >From net.eth1:
>         if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
>         then
>                 eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
>         else
>                 eval /sbin/dhcpcd "\$\{dhcpcd_${IFACE}\}" "$IFACE" >/dev/null 2>&1 || return $?
>         fi
> 
> The problem is that net.eth1 will not start up as dhcp. I edited the
> net.eth1 to see what it was trying to do by throwing some echo's in just
> to see where it was...Everytime no matter what the setting is in
> conf.d/net, it will only hit the "then" off that if statement. I hacked
> the script to look like this:
> 
>         if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
>         then
>                 eval /sbin/dhcpcd -R eth1 >/dev/null 2>&1 || return $?
>         else
>                 eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
>         fi
> 
> This works for the time being, but I'd like to correct the root cause of
> the problem. While starting up, it says "Bringing eth1 up" so I know
> $IFACE has the correct value. But I am stumped as to why the rest isn't
> working.
> 
> Any help is appreciated!

Hiya there

Looks like I made a slight "type-o" when I was fixing up the form of the
scripts.  Anyhow, try the attatched version, and let me know.


Greetings,

-- 
Martin Schlemmer
Gentoo Linux Developer, Desktop Team
Cape Town, South Africa

[-- Attachment #2: net.eth0 --]
[-- Type: text/plain, Size: 2274 bytes --]

#!/sbin/runscript
# Copyright 1999-2002 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# $Header: /home/cvsroot/gentoo-src/rc-scripts/init.d/net.eth0,v 1.9 2002/02/15 04:35:43 azarah Exp $

#NB: Config is in /etc/conf.d/net


#for pcmcia users. note that pcmcia must be added to the same
#runlevel as the net.* script that needs it.
depend() {
	use pcmcia
}

checkconfig() {
	if [ -z "`eval echo \$\{iface_${IFACE}\}`" ]
	then
		eerror "Please make sure that /etc/conf.d/net has \$iface_$IFACE set"
		return 1
	fi
}

start() {
	checkconfig || return 1
	local iface_args="`eval echo \$\{iface_${IFACE}\}`"
	local dhcp_args="`eval echo \$\{dhcpcd_${IFACE}\}`"
	local retval=0
	ebegin "Bringing ${IFACE} up"
	if [ "`eval echo \$\{iface_${IFACE}\}`" != "dhcp" ]
	then
		/sbin/ifconfig "$IFACE" "$iface_args" >/dev/null 2>&1 || {
			retval=$?
			eend $retval
			return $retval
		}
	else
		/sbin/dhcpcd "$dhcp_args" "$IFACE" >/dev/null 2>&1 || {
			retval=$?
			eend $retval
			return $?
		}
	fi

	if [ -n "`eval echo \$\{alias_${IFACE}\}`" ]
	then
		local x=""
		local num=0
		for x in `eval echo \$\{alias_${IFACE}\}`
		do
			/sbin/ifconfig "${IFACE}:${num}" "$x" >/dev/null 2>&1
			num=$((num + 1))
		done
		save_options alias "`eval echo \$\{alias_${IFACE}\}`"
	fi
	
	if [ -n "$gateway" ] && [ "${gateway%/*}" = "$IFACE" ]
	then
		/sbin/route add -net default gw "${gateway#*/}" dev "${gateway%/*}" \
			netmask 0.0.0.0 metric 1 >/dev/null 2>&1 || {
			
			local error=$?
			ifconfig "${IFACE}" down >/dev/null 2>&1
			eend ${error}
			return ${error}
		}
	fi

	#enabling rp_filter causes wacky packets to be auto-dropped by
	#the kernel

	if [ -e /proc/sys/net/ipv4/conf/${IFACE}/rp_filter ]
	then
		echo 1 > /proc/sys/net/ipv4/conf/${IFACE}/rp_filter
	fi
	eend
}

stop() {
	local myalias="`get_options alias`"
	ebegin "Bringing ${IFACE} down"
	#do some cleanup in case the amount of aliases change
	if [ -n "$myalias" ]
	then
		local x=""
		local num=0
		for x in $myalias
		do
			/sbin/ifconfig "${IFACE}:${num}" down >/dev/null 2>1
			num=$((num + 1))
		done
	fi
	/sbin/ifconfig "$IFACE" down >/dev/null 2>&1
	eend $?
}

Re: [gentoo-dev] Problem with net.eth1 startup script

[Todd Punderson]

Worked great!
Thanks very much.
Todd

On 07 Mar 2002 13:08:27 +0200
Martin Schlemmer <azarah@gentoo.org> wrote:

> On Thu, 2002-03-07 at 09:05, Todd Punderson wrote:
> > Hello,
> >         After doing a update --world to upgrade about 2 months worth of
> > packages, I ran into this problem. I was following the directions to set
> > up multiple network cards. Here is what I have done so far and some
> > snippets of my config files.
> > 
> > I edited /etc/conf.d/net to look like this: (edited for clarity, the
> > rest of the file is commented lines)
> > 
> > iface_eth0="192.168.0.1 broadcast 192.168.0.255 netmask 255.255.255.0"
> > iface_eth1="dhcp"
> > dhcpcd_eth1="-R"
> > 
> > NOTE: eth0 configures correctly on bootup. The drivers for the network
> > card are also loaded properly. If I run dhcpcd manually, it works fine.
> > 
> > I copied net.eth0 to net.eth1 as per the directions.
> > >From net.eth1:
> >         if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
> >         then
> >                 eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
> >         else
> >                 eval /sbin/dhcpcd "\$\{dhcpcd_${IFACE}\}" "$IFACE" >/dev/null 2>&1 || return $?
> >         fi
> > 
> > The problem is that net.eth1 will not start up as dhcp. I edited the
> > net.eth1 to see what it was trying to do by throwing some echo's in just
> > to see where it was...Everytime no matter what the setting is in
> > conf.d/net, it will only hit the "then" off that if statement. I hacked
> > the script to look like this:
> > 
> >         if [ "`eval echo "\$\{iface_${IFACE}\}"`" != "dhcp" ]
> >         then
> >                 eval /sbin/dhcpcd -R eth1 >/dev/null 2>&1 || return $?
> >         else
> >                 eval /sbin/ifconfig "$IFACE" "\$iface_$IFACE" >/dev/null 2>&1 || return $?
> >         fi
> > 
> > This works for the time being, but I'd like to correct the root cause of
> > the problem. While starting up, it says "Bringing eth1 up" so I know
> > $IFACE has the correct value. But I am stumped as to why the rest isn't
> > working.
> > 
> > Any help is appreciated!
> 
> Hiya there
> 
> Looks like I made a slight "type-o" when I was fixing up the form of the
> scripts.  Anyhow, try the attatched version, and let me know.
> 
> 
> Greetings,
> 
> -- 
> Martin Schlemmer
> Gentoo Linux Developer, Desktop Team
> Cape Town, South Africa

-- 
Todd Punderson <todd@doonga.net>