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can not get network up on boot [SOLVED]

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zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 5:43 pm Post subject: can not get network up on boot [SOLVED]

I have installed gentoo on my box now, its a little different in the 2005.0 edition by the way.
when i boot the box, I get this error:

Code:

Starting eth0
Bringing up eth0
dhcp
Running dhcpcd
ERROR: Problem starting needed services.
"netmount" was not started.

after that i can log on and if I do the following, I get an IP from the DHCP server

Code:

dhcpcd eth0

Why is this not working from boot??

PS. I have done a rc-update add net.eth0 default

Last edited by zaphyr on Fri Jul 15, 2005 7:05 am; edited 1 time in total

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 5:52 pm Post subject: Re: can not get network up on boot

zaphyr wrote:

I have installed gentoo on my box now, its a little different in the 2005.0 edition by the way.
when i boot the box, I get this error:

Code:

Starting eth0
Bringing up eth0
dhcp
Running dhcpcd
ERROR: Problem starting needed services.
"netmount" was not started.

after that i can log on and if I do the following, I get an IP from the DHCP server

Code:

dhcpcd eth0

Why is this not working from boot??

PS. I have done a rc-update add net.eth0 default

I have this problem periodically with wireless, I don't think I've ever had it with ethernet. As a guess I'd say if you have the ethernet driver compiled as a module, make sure you list it in /etc/modules.autoload.d/kernel-2.6 (assuming you are using kernel-2.6).

Forcing the module to load earlier seems to make things behave better for me.

You also may want to make sure that you haven't got an IP Addy after bootup, because I thought dhcpcd would report an error at boot up (before you'd see the netmount failure) if it can't assign. Netmount not running could indicate that you don't have proper nfs configs or something like that, it doesn't necessarilly mean that ethernet is not running.

One last thought: If you have RC_PARALLEL_STARTUP="yes" in your /etc/conf.d/rc then you may want to consider changing it to no to see if things get better.

Raydude
_________________
Some day there will only be free software.

zaphyr
Guru
Guru

Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 6:23 pm Post subject:

Quote:

One last thought: If you have RC_PARALLEL_STARTUP="yes" in your /etc/conf.d/rc then you may want to consider changing it to no to see if things get better.

my RC_PARALELL_STARTUP says "no"

I have added mii and via_rhine to the /etc/modules.autoload.d/kernel-2.6, but that did not help.
I dont think it is module/driver related, seems more to be service related. I suspect that dhcpcd does not start as it should.
Is there any way I can check if it is started? like look at which deamons/services that are running after I log on?

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 6:29 pm Post subject:

zaphyr wrote:

Quote:

One last thought: If you have RC_PARALLEL_STARTUP="yes" in your /etc/conf.d/rc then you may want to consider changing it to no to see if things get better.

After you log in:

Code:

ifconfig

Which will show you if an IP addy has been assigned. If it hasn't, and dhcpcd eth0 fixes it, then there's a weird problem...

Make sure you don't have some network daemon setup to run at boot, because that will cause networking to try and start too soon.

You can check that by doing this:

Code:

Obviously net.lo must be at boot, but other network daemons should be set for the default run level.

Raydude
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zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 6:44 pm Post subject:

correct, I do not get an IP at boot, but after runing dhcpcd eth0 I get an IP

I have net.eth0 starting at default and net.lo starting at boot...
this sucks, I have had gentoo running on this box before

I just saw that there is a warning just after entering runlevel 3 during boot:

Quote:

Warning: /etc/init.d/serial missing; skipping...

is it relevant?

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 7:01 pm Post subject:

zaphyr wrote:

Quote:

Warning: /etc/init.d/serial missing; skipping...

is it relevant?

I seem to remember seeing that before. It really doesn't matter if you don't use the serial port (I think its used as a TTY device).

What version of baselayout are you using?

Raydude
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zaphyr
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Guru

Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 7:08 pm Post subject:

Quote:

What version of baselayout are you using?

I am using baselayout 1.11.12-r4

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 7:10 pm Post subject:

zaphyr wrote:

Quote:

What version of baselayout are you using?

I am using baselayout 1.11.12-r4

Well, lets check the obvious things.

Post your /etc/conf.d/net file...

Raydude
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zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 7:28 pm Post subject:

this is my /etc/conf.d/net file

Code:

config_eth0=( "dhcp" )
dhcp_eth0="nodns nontp nonis"

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 7:40 pm Post subject:

zaphyr wrote:

this is my /etc/conf.d/net file

Code:

config_eth0=( "dhcp" )
dhcp_eth0="nodns nontp nonis"

Where, there you go...

Try this:

Code:

iface_eth0="dhcp"
dhcpcd_eth0="nodns nontp nonis"

I'm not sure what the nodns nontp nonis are for. I have this:

Code:

dhcpcd_eth0="-Y -h ${HOSTNAME}"

They changed the format for net in 1.11, there's a net.example that you can look at in /etc/conf.d

Raydude
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zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 8:14 pm Post subject:

well, I changed it to

Code:

iface_eth0="dhcp"
dhcpcd_eth0="nodns nontp nonis"

but that did not work
then i tried to change it to

Code:

dhcpcd_eth0="-Y -h ${HOSTNAME}"

and that did not work either
then I read the DHCP section in /etc/conf.d/net.example, and changed the setting as described there

Code:

config_eth0=( "dhcp" )
dhcp_eth0="release nodns nontp nonis"

...still no luck....

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 8:27 pm Post subject:

zaphyr wrote:

well, I changed it to

Code:

iface_eth0="dhcp"
dhcpcd_eth0="nodns nontp nonis"

but that did not work
then i tried to change it to

Code:

dhcpcd_eth0="-Y -h ${HOSTNAME}"

and that did not work either
then I read the DHCP section in /etc/conf.d/net.example, and changed the setting as described there

Code:

config_eth0=( "dhcp" )
dhcp_eth0="release nodns nontp nonis"

...still no luck....

Apparently both syntaxes are supported in /etc/conf.d/net, so I was barking up the wrong tree.

Have you looked at the latest log from /var/log/messages?

And look for error messages in dmesg as well...

Raydude
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zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Thu Jul 14, 2005 8:37 pm Post subject:

hmmm... /var/log/messages has a lot of these msgs

Quote:

DHCP_NAK server response received: Duplicate names

demesg is ok, no warnings

RayDude
Advocate

Joined: 29 May 2004
Posts: 2091
Location: San Jose, CA

Posted: Thu Jul 14, 2005 9:43 pm Post subject:

zaphyr wrote:

hmmm... /var/log/messages has a lot of these msgs

Quote:

DHCP_NAK server response received: Duplicate names

demesg is ok, no warnings

That's interesting... Do you have any other machines on the network with the same name?

Assuming you don't, then I wonder why the dhcp server isn't noticing that the MAC addy is the same for that machine and not just re-assigning it...

You should see what tail /var/log/messages says after you do the dhcpcd eth0. I'm curious if it produces any warnings or errors.

Raydude
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Slavo
Apprentice

Joined: 26 May 2005
Posts: 229

Posted: Thu Jul 14, 2005 10:12 pm Post subject:

one stupid question when you type as root # ifconfig do you have a loopback device there? (Device lo) if not then recompile kernel with loopback device support (this is just guess

zaphyr
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Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Fri Jul 15, 2005 7:05 am Post subject:

of course...stupid, stupid, stupid me.... I have two boxes with the same hostname! I changed the hostname on my new gentoo box and whoopsie, no problems getting an IP anymore! thanks to all for your time and effort!

Joseph_sys
Advocate

Joined: 08 Jun 2004
Posts: 2716
Location: Edmonton, AB

Posted: Mon Jul 18, 2005 4:29 am Post subject:

zaphyr wrote:

of course...stupid, stupid, stupid me....
I have two boxes with the same hostname!
I changed the hostname on my new gentoo box and whoopsie, no problems getting an IP anymore!

thanks to all for your time and effort!

I have the same problem and have tried the same entries as you but can not get the eth0 to get an up at boot; it works with "dhcpcd eth0",
my machine has a unique name so the is no reson it shouldn't work. But it doens't :-(

zaphyr
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Guru

Joined: 07 Dec 2004
Posts: 312
Location: Copenhagen, Denmark

Posted: Mon Jul 18, 2005 12:53 pm Post subject:

do you get the same warning in /var/log/messages?

Joseph_sys
Advocate

Joined: 08 Jun 2004
Posts: 2716
Location: Edmonton, AB

Posted: Mon Jul 18, 2005 2:05 pm Post subject:

zaphyr wrote:

do you get the same warning in /var/log/messages?

I solve it.
In my case it was file net.eth0; for some reason or another it was very short and didn't contain all the script. So I had to re-emerge baselayout and follow the instruction on the screen.

bandreabis
Advocate

Joined: 18 Feb 2005
Posts: 2495
Location: イタリアのロディで

Posted: Mon Jul 18, 2005 5:01 pm Post subject:

Hi, I'm in trouble, could you please post your net.eth0? Thanks Andrea

Joseph_sys
Advocate

Joined: 08 Jun 2004
Posts: 2716
Location: Edmonton, AB

Posted: Mon Jul 18, 2005 5:14 pm Post subject:

bandreabis wrote:

Hi, I'm in trouble, could you please post your net.eth0?

Thanks
Andrea

Here mine net.eth0.
Though try to run "emerge baselayout" and it should fix if net.eth0 is broken.
Pay attention to the messages at the end, as it might ask you to run an additional command.
[/code]

Quote:

#!/sbin/runscript
# Copyright (c) 2004-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-src/rc-scripts/net-scripts/init.d/net.lo,v 1.38.2.19 2005/05/16 18:45:35 uberlord Exp $

# Contributed by Roy Marples (uberlord@gentoo.org)
# Many thanks to Aron Griffis (agriffis@gentoo.org)
# for help, ideas and patches

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

if [[ -n ${NET_DEBUG} ]]; then
set -x
devnull=/dev/stderr
else
devnull=/dev/null
fi

# For pcmcia users. note that pcmcia must be added to the same
# runlevel as the net.* script that needs it.
depend() {
use coldplug hotplug pcmcia usb isdn4linux wlan

# Load any custom depend functions for the given interface
# For example, br0 may need eth0 and eth1
local iface=${myservice##*.}
[[ $( type -t depend_${iface} ) == "function" ]] && depend_${iface}
}

# Define where our modules are
MODULES_DIR=/lib/rcscripts/net.modules.d

# Load some functions shared between ourselves and our dhcp helpers
source ${MODULES_DIR}/helpers.d/functions

# Make some wrappers to fudge after/before/need/use depend flags.
# These are callbacks so mods[i] will be set.
after() {
local x="$*"
[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
eval "${MODULE}_after() { echo \"$x\"; }"
}
before() {
local x="$*"
[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
eval "${MODULE}_before() { echo \"$x\"; }"
}
need() {
local x="$*"
[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
eval "${MODULE}_need() { echo \"$x\"; }"
}
installed() {
local x="$*"
[[ $# -gt 1 ]] && x=$( echo -e "${x// /\n}" | sort | xargs )
# We deliberately misspell this as _installed will probably be used
# at some point
eval "${MODULE}_instlled() { echo \"$x\"; }"
}

sort() {
LC_ALL=C /bin/sort "$@"
}

# void module_class_wrap(char *module, char *provides)
# Setup class wrappers: interface_up -> iproute2_up, for example
module_class_wrap() {
local module=${1} provides=${2} x

# Don't wrap functions if another module already has
[[ $( type -t ${provides}_provides ) == function ]] && return

for x in $( typeset -f | grep -o ^${module}_'[^ ]*' ); do
eval "${provides}${x#${module}}() { ${x} \"\$@\"; }"
done
}

# bool module_load_minimum(char *module)
#
# Does the minimum checking on a module - even when forcing
module_load_minimum() {
local f=${1} MODULE=${1##*/}

if [[ ! -f ${f} ]]; then
eerror "${f} does not exist"
return 1
fi

if ! source ${f} ; then
eerror "${MODULE} failed a sanity check"
return 1
fi

for f in check_installed provides check_depends depend; do
[[ $( type -t ${MODULE}_${f} ) == function ]] && continue
eerror "${MODULE} does not support the required function ${f}"
return 1
done

# Wrap our before/after/need/use functions
${MODULE}_depend

return 0
}

# bool modules_load_auto()
#
# Load and check each module for sanity
# If the module is not installed, the functions are to be removed
modules_load_auto() {
local e f i j beforefuncs afterfuncs diffs unload

# Populate the MODULES array
MODULES=( $( find ${MODULES_DIR}/ -maxdepth 1 -type f ! -name ".*" | sort ) )

# Each of these sources into the global namespace, so it's
# important that module functions and variables are prefixed with
# the module name, for example iproute2_

beforefuncs="$( typeset -F )"
j=${#MODULES[@]}
loaded_interface=false
for (( i=0; i<j; i++ )); do

unload=false
module_load_minimum ${MODULES[i]} || unload=true
MODULES[i]=${MODULES[i]##*/}

! ${unload} && ${MODULES[i]}_check_installed false || unload=true

if [[ ${MODULES[i]} == interface ]]; then
eerror "interface is a reserved name - cannot load a module called interface"
return 1
fi

afterfuncs="$( typeset -F )"
if ${unload} ; then
unset MODULES[i]
unsetfuncs="${unsetfuncs} $( diff -U0 <( echo "${beforefuncs}" ) <( echo "${afterfuncs}" ) 2>/dev/null \
| awk 'BEGIN { ORS = " "; } /+declare -f/ { print $3; }' )"
fi
beforefuncs="${afterfuncs}"

done
MODULES=( "${MODULES[@]}" )

return 0
}

# bool modules_check_installed(void)
#
# Ensure that all modules have the required modules loaded
# This enables us to remove modules from the MODULES array
# Whilst other modules can still explicitly call them
# One example of this is essidnet which configures network
# settings for the specific ESSID connected to as the user
# may be using a daemon to configure wireless instead of our
# iwconfig module
modules_check_installed() {
local i j missingdeps nmods=${#MODULES[@]}

for (( i=0; i<nmods; i++ )); do
[[ $( type -t ${MODULES[i]}_instlled ) != function ]] && continue
for j in $( ${MODULES[i]}_instlled ); do
missingdeps=true
if [[ $( type -t ${j}_check_installed ) == function ]]; then
${j}_check_installed && missingdeps=false
fi
${missingdeps} && unset MODULES[i] && unset PROVIDES[i] && break
done
done

MODULES=( "${MODULES[@]}" )
PROVIDES=( "${PROVIDES[@]}" )
}

# bool modules_check_user(void)
modules_check_user() {
local -a umods
local i j k l npref nmods=${#MODULES[@]}

# Has the interface got any specific modules?
eval umods=( \"\$\{modules_${iface}\[@\]\}\" )

# Global setting follows interface-specific setting
umods=( "${umods[@]}" "${modules[@]}" )

# Add our preferred modules
npref=3
umods=( "${umods[@]}" "ifconfig" "dhcpcd" "iwconfig" )

# First we strip any modules that conflict from user settings
# So if the user specifies pump then we don't use dhcpcd
for (( i=0; i<${#umods[@]}; i++ )); do
# Some users will inevitably put "dhcp" in their modules
# list. To keep users from screwing up their system this
# way, ignore this setting so that the default dhcp
# module will be used.
[[ ${umods[i]} == dhcp ]] && continue

# We remove any modules we explicitly don't want
if [[ ${umods[i]} == !* ]]; then
for (( j=0; j<nmods; j++ )); do
[[ -z ${MODULES[j]} ]] && continue
if [[ ${umods[i]:1} == ${MODULES[j]} || ${umods[i]:1} == ${PROVIDES[j]} ]]; then
# We may need to setup a class wrapper for it even though
# we don't use it directly
${MODULES[j]}_check_installed && module_class_wrap ${MODULES[j]}
unset MODULES[j]
unset PROVIDES[j]
break
fi
done
continue
fi

if [[ $( type -t ${umods[i]}_provides ) != function ]]; then
# If the module is one of our preferred modules, then
# ignore this error; whatever is available will be
# used instead.
(( i < ${#umods[@]} - npref )) || continue
eerror "${umods[i]} is not a valid module (missing provides)"
return 1
fi

# Ensure that the user specified module has its package installed
if (( i < ${#umods[@]} - npref )); then
# $1==true causes check_installed to report its own errors
${umods[i]}_check_installed true || return 1
else
# If this happens on a preferred modules, ignore it;
# whatever is available will be used instead.
${umods[i]}_check_installed false || continue
fi

mod=$( ${umods[i]}_provides )
for (( j=0; j<nmods; j++ )); do
[[ -z ${MODULES[j]} ]] && continue
if [[ ${PROVIDES[j]} == ${mod} && ${umods[i]} != ${MODULES[j]} ]]; then
# We don't have a match - now ensure that we still provide an alternative.
# This is to handle our preferred modules.
for (( l=0; l<nmods; l++ )); do
[[ ${l} -eq ${j} || -z ${MODULES[l]} ]] && continue
if [[ ${PROVIDES[l]} == ${mod} ]]; then
unset MODULES[j]
unset PROVIDES[j]
break
fi
done
fi
done
done

# Then we strip conflicting modules.
# We only need to do this for 3rd party modules that conflict with
# our own modules and the preferred list AND the user modules
# list doesn't specify a preference.
for (( i=0; i<nmods-1; i++ )); do
[[ -z ${MODULES[i]} ]] && continue
for (( j=i+1; j<nmods; j++)); do
[[ -z ${MODULES[j]} ]] && continue
[[ ${PROVIDES[i]} == ${PROVIDES[j]} ]] && unset MODULES[j] && unset PROVIDES[j]
done
done

MODULES=( "${MODULES[@]}" )
PROVIDES=( "${PROVIDES[@]}" )
return 0
}

# void modules_sort(void)

modules_sort() {
local -a modnums sort_history modafter modbefore
local i j k p changed_something nmods=${#MODULES[@]}

# Sort our modules
# We do this by assigning numbers to each module
# We also assign modbefore and modafter so we don't
# shell out as much because it's expensive on CPU.
modnums=()
for (( i=0; i<nmods; i++ )); do
modnums[i]=${i}
[[ $( type -t ${MODULES[i]}_after ) == function ]] && modafter[i]=$( ${MODULES[i]}_after )
[[ $( type -t ${MODULES[i]}_before ) == function ]] && modbefore[i]=$( ${MODULES[i]}_before )
done

# Then we swap numbers based on and after/before flags
# until we don't swap anymore. The sort_history array prevents
# the possibility of an infinite loop
sort_history[0]="${modnums[*]}"
for (( k=1; 1; k++ )); do
changed_something=false
for (( i=0; i<nmods; i++ )); do
for p in ${modafter[i]}; do
for (( j=0; j<nmods; j++ )); do
[[ ${p} != ${MODULES[j]} && ${p} != ${PROVIDES[j]} ]] && continue
if [[ ${modnums[i]} -lt ${modnums[j]} ]]; then
tmp=${modnums[i]}
modnums[i]=${modnums[j]}
modnums[j]=${tmp}
changed_something=true
fi
done
done
for p in ${modbefore[i]}; do
for (( j=0; j<nmods; j++ )); do
[[ ${p} != ${MODULES[j]} && ${p} != ${PROVIDES[j]} ]] && continue
if [[ ${modnums[i]} -gt ${modnums[j]} ]]; then
tmp=${modnums[i]}
modnums[i]=${modnums[j]}
modnums[j]=${tmp}
changed_something=true
fi
done
done
done
${changed_something} || break

# Make sure we aren't repeating a previous state
# First time through, k=1, k/2=0
sort_history[k]="${modnums[*]}"
if [[ ${sort_history[k]} == ${sort_history[k/2]} ]]; then
eerror "Detected an infinite loop sorting modules; blundering ahead"
break
fi
done

# Finally we sort our modules in number order
um=""
for (( i=0; i<nmods; i++ )); do
um="${um}${modnums[i]} ${MODULES[i]} ${PROVIDES[i]}\n"
done

p=( $( echo -e "${um}" | sort -n | awk '{print $2,$3}' ) )
MODULES=()
PROVIDES=()
j=0
for (( i=0; i<${#p[@]}; i+=2 )); do
MODULES[j]=${p[i]}
PROVIDES[j]=${p[i+1]}
(( j++ ))
done
}

# bool modules_check_depends(bool showprovides)
modules_check_depends() {
local showprovides=${1:-false} nmods=${#MODULES[@]} i j needmod
local missingdeps p interface=false

for (( i=0; i<nmods; i++ )); do
if [[ $( type -t ${MODULES[i]}_need ) == function ]]; then
for needmod in $( ${MODULES[i]}_need ); do
missingdeps=true
for (( j=0; j<nmods; j++ )); do
if [[ ${needmod} == ${MODULES[j]} || ${needmod} == ${PROVIDES[j]} ]]; then
missingdeps=false
break
fi
done
if ${missingdeps} ; then
eerror "${MODULES[i]} needs ${needmod} (dependency failure)"
return 1
fi
done
fi

${MODULES[i]}_check_depends || return 1
[[ ${PROVIDES[i]} == interface ]] && interface=true

if ${showprovides} ; then
[[ ${PROVIDES[i]} != ${MODULES[i]} ]] && veinfo "${MODULES[i]} provides ${PROVIDES[i]}"
fi
done

if ! ${interface} ; then
eerror "no interface module has been loaded"
return 1
fi

return 0
}

# bool modules_load(char *iface, bool starting)
#
# Loads the defined handler and modules for the interface
# Returns 0 on success, otherwise 1
modules_load() {
local iface=${1} starting=${2:-true} mod p=false i j unsetfuncs
local -a x
local RC_INDENTATION=${RC_INDENTATION} # so it will reset after function
local -a PROVIDES

if [[ ${iface} == lo ]]; then
# We force lo to only use these modules for a major speed boost
modules_force=( "iproute2" "ifconfig" )
else
eval x=( \"\$\{modules_force_${iface}\[@\]\}\" )
[[ -n ${x} ]] && modules_force=( "${x[@]}" )
if [[ -n ${modules_force} ]]; then
ewarn "WARNING: You are forcing modules!"
ewarn "Do not complain or file bugs if things start breaking"
report=true
fi
veinfo "Loading networking modules for ${iface}"
fi
eindent

if [[ -z ${modules_force} ]]; then
modules_load_auto || return 1
else
j=${#modules_force[@]}
for (( i=0; i<j; i++ )); do
module_load_minimum "${MODULES_DIR}/${modules_force[i]}" || return 1
${modules_force[i]}_check_installed || unset modules_force[i]
done
MODULES=( "${modules_force[@]}" )
fi

# We now buffer the _provides functions for a big speed boost
j=${#MODULES[@]}
for (( i=0; i<j; i++ )); do
PROVIDES[i]=$( ${MODULES[i]}_provides )
done

if [[ -z ${modules_force[@]} ]]; then
if ${starting}; then
modules_check_user || return 1
fi

# We unset unloaded module functions here as so we can error
# with a message informing the user to emerge the correct
# package if it's in their modules
[[ -n ${unsetfuncs} ]] && unset ${unsetfuncs}

modules_sort
fi

# Setup class wrappers: interface_up -> iproute2_up, for example
j=${#MODULES[@]}
for (( i=0; i<j; i++ )); do
module_class_wrap ${MODULES[i]} ${PROVIDES[i]}
done

modules_check_installed || return 1

[[ ${iface} != lo ]] && veinfo "modules: ${MODULES[@]}"
eindent

[[ ${iface} != lo && ${starting} == true ]] && p=true
modules_check_depends ${p} || return 1
return 0
}

# bool iface_start(char *interface)
#
# iface_start is called from start. It's expected to start the base
# interface (for example "eth0"), aliases (for example "eth0:1") and to start
# VLAN interfaces (for example eth0.0, eth0.1). VLAN setup is accomplished by
# calling itself recursively.
iface_start() {
local iface=${1} mod config_counter=-1 x warn=false config_worked=false
local RC_INDENTATION=${RC_INDENTATION} # so it will reset after function
local -a config fallback fallback_route conf
local ifvar=$( interface_variable ${iface} )

# pre Start any modules with
for mod in ${MODULES[@]}; do
if [[ $( type -t ${mod}_pre_start ) == function ]]; then
${mod}_pre_start ${iface} || { eend 1; return 1; }
fi
done

# New style config - one variable fits all
eval config=( \"\$\{config_${ifvar}\[@\]\}\" )
eval fallback=( \"\$\{fallback_${ifvar}\[@\]\}\" )
eval fallback_route=( \"\$\{fallback_route_${ifvar}\[@\]\}\" )

# We must support old configs
if [[ -z ${config} ]]; then
interface_get_old_config ${iface} || return 1
fi

# Handle "noop" correctly
if [[ ${config[0]} == "noop" ]]; then
if interface_is_up ${iface} true ; then
einfo "Keeping current configuration for ${iface}"
eend 0
return 0
fi

# Remove noop from the config var
config=( "${config[@]:1}" )
fi

# Provide a default of DHCP if no configuration is set
if [[ -z ${config} ]]; then
if [[ $( type -t dhcp_start ) == function ]]; then
config=( "dhcp" )
warn=true
else
eerror "Cannot default to dhcp as there is no dhcp module loaded"
eerror "No configuration for ${iface}"
return 1
fi
fi

einfo "Bringing up ${iface}"
eindent
for (( config_counter=0; config_counter<${#config[@]}; config_counter++ )); do
# Handle null and noop correctly
if [[ ${config[config_counter]} == "null" \
|| ${config[config_counter]} == "noop" ]]; then
eend 0
config_worked=true
continue
fi

if ${warn}; then
ewarn "Configuration not set for ${iface} - assuming dhcp"
warn=false
fi

# We convert it to an array - this has the added
# bonus of trimming spaces!
conf=( ${config[config_counter]} )
einfo "${conf[0]}"

# Do we have a function for our config?
if [[ $( type -t ${conf[0]}_start ) == function ]]; then
# Check that the module is valid
x=false
for mod in ${MODULES[@]}; do
if [[ $( ${mod}_provides ) == ${conf[0]} ]]; then
x=true
break
fi
done

if ! ${x}; then
[[ $( type -t ${conf[0]}_check_installed == function ) ]] && ${conf[0]}_check_installed true
eerror "No loaded modules provide \"${conf[0]}\" (${conf[0]}_start)"
else
eindent
${conf[0]}_start ${iface} ; x=$?
eoutdent
[[ ${x} == 0 ]] && config_worked=true && continue
fi
# We need to test to see if it's an IP address or a function
# We do this by testing if the 1st character is a digit
elif [[ ${conf[0]:0:1} == [[:digit:]] || ${conf[0]} == *:* ]]; then
x=0
# if [[ $(type -t address_exists ) == function ]]; then
# if address_exists ${iface} ${conf[0]} ; then
# eerror "${conf[0]%%/*} already taken on ${iface}"
# x=1
# fi
# fi
[[ ${x} == 0 ]] && interface_add_address ${iface} ${conf[@]} ; x=$?
eend ${x} && config_worked=true && continue
else
eerror "No loaded modules provide \"${conf[0]}\" (${conf[0]}_start)"
fi

if [[ -n ${fallback[config_counter]} ]]; then
einfo "Trying fallback configuration"
config[config_counter]=${fallback[config_counter]}
fallback[config_counter]=''

# Do we have a fallback route?
if [[ -n ${fallback_route[config_counter]} ]]; then
eval "routes_${ifvar}=( "\"\$\{fallback_route\[${config_counter}\]\[@\]\}\"" )"
fallback_route[config_counter]=''
fi

(( config_counter-- )) # since the loop will increment it
continue
fi
done
eoutdent

# We return failure if no configuration parameters worked
${config_worked} || return 1

# Start any modules with _post_start
for mod in ${MODULES[@]}; do
if [[ function == $( type -t ${mod}_post_start ) ]]; then
${mod}_post_start ${iface} || return 1
fi
done

return 0
}

# bool iface_stop(char *interface)
#
# iface_stop: bring down an interface. Don't trust information in
# /etc/conf.d/net since the configuration might have changed since
# iface_start ran. Instead query for current configuration and bring
# down the interface.
#
# However, we are currently reliant on handler and modules specified
# in /etc/conf.d/net
iface_stop() {
local iface=${1} i aliases need_begin=false mod
local RC_INDENTATION=${RC_INDENTATION} # so it will reset after function

# pre Stop any modules
for mod in ${MODULES[@]}; do
[[ $( type -t ${mod}_pre_stop ) == function ]] && ${mod}_pre_stop ${iface}
done

einfo "Bringing down ${iface}"
eindent

# Collect list of aliases for this interface.
# List will be in reverse order.
aliases=$( interface_get_aliases_rev ${iface} )

# Stop aliases before primary interface.
# Note this must be done in reverse order, since ifconfig eth0:1
# will remove eth0:2, etc. It might be sufficient to simply remove
# the base interface but we're being safe here.
for i in ${aliases} ${iface}; do
# Stop all our modules
for mod in ${MODULES[@]}; do
[[ $( type -t ${mod}_stop ) == function ]] && ${mod}_stop ${i}
done

# A module may have removed the interface
interface_exists ${iface} || { eend 0; continue; }

# Delete all the addresses for this alias
interface_del_addresses ${i}

# Do final shut down of this alias
ebegin "Shutting down ${i}"
interface_iface_stop ${i}
eend $?
done

# post Stop any modules
for mod in ${MODULES[@]}; do
# We have already taken down the interface, so no need to error
[[ $( type -t ${mod}_post_stop ) == function ]] && ${mod}_post_stop ${iface}
done

return 0
}

# bool run_start(char *iface)
#
# Brings up ${IFACE}. Calls preup, iface_start, then postup.
# Returns 0 (success) unless preup or iface_start returns 1 (failure).
# Ignores the return value from postup.
# We cannot check that the device exists ourselves as modules like
# tuntap make create it.
run_start() {
local iface=${1} ifvar x

if [[ ${iface} == lo ]]; then
ebegin "Bringing up ${iface}"
interface_loopback_create
eend $?
return $?
fi

# We may not have a loaded module for ${iface}
# Some users may have "alias natsemi eth0" in /etc/modules.d/foo
# so we can work with this
# However, if they do the same with eth1 and try to start it
# but eth0 has not been loaded then the module gets loaded as
# eth0.
# Not much we can do about this

# Also, we cannot error here as some modules - such as bridge
# create interfaces
if ! interface_exists ${iface} ; then
/sbin/modprobe ${iface} &>/dev/null
fi

# Setup variables for pre/post to use
ifvar=$( interface_variable ${iface} )
local IFACE=${iface} IFVAR=${ifvar}

# Call user-defined preup function if it exists
if [[ $( type -t preup ) == function ]]; then
einfo "Running preup function"
eindent
preup ${iface} ; x=$?
eoutdent
if [[ ${x} != 0 ]]; then
eerror "preup ${iface} failed"
return 1
fi
fi

# Don't let preup modify us
iface=${1}
local IFACE=${iface} IFVAR=${ifvar} config

# If config is set to noop and the interface is up with an address
# then we don't start it
eval config=( \"\$\{config_${ifvar}\[@\]\}\" )
if [[ ${config[0]} == "noop" ]] && interface_is_up ${iface} true ; then
einfo "Keeping current configuration for ${iface}"
eend 0
else
# Remove noop from the config var
[[ ${config[0]} == "noop" ]] && eval "config_${ifvar}=( "\"\$\{config\[@\]:1\}\"" )"

# There may be existing ip address info - so we strip it
interface_del_addresses ${iface}

# Start the interface
if ! iface_start ${iface} ; then
interface_down ${iface}
eend 1
return 1
fi
fi

# Call user-defined postup function if it exists
if [[ $( type -t postup ) == function ]]; then
einfo "Running postup function"
eindent
postup ${iface}
eoutdent
fi

return 0
}

# bool run_stop(char *iface) {
#
# Brings down ${iface}. If predown call returns non-zero, then
# stop returns non-zero to indicate failure bringing down device.
# In all other cases stop returns 0 to indicate success.
run_stop() {
local iface=${1} ifvar x

# Don't run any special shutdown functions for lo
if [[ ${iface} == lo ]]; then
ebegin "Shutting down ${iface}"
interface_iface_stop ${iface}
eend $?
return 0
fi

# Setup variables for pre/post to use
ifvar=$( interface_variable ${iface} )
local IFACE=${iface} IFVAR=${ifvar}

# Call user-defined predown function if it exists
if [[ $( type -t predown ) == function ]]; then
einfo "Running predown function"
eindent
predown ${iface} ; x=$?
eoutdent
if [[ ${x} != 0 ]]; then
eend 1 "predown ${iface} failed"
return 1
fi
elif is_net_fs /; then
eerror "root filesystem is network mounted -- can't stop ${iface}"
return 1
fi

# Don't let predown modify us
iface=${1}
local IFACE=${iface} IFVAR=${ifvar}

iface_stop ${iface} || return 1 # always succeeds, btw

# Call user-defined postdown function if it exists
if [[ $( type -t postdown ) == function ]]; then
einfo "Running postdown function"
eindent
postdown ${iface}
eoutdent
fi

return 0
}

# bool run(char *iface, char *cmd)
#
# Main start/stop entry point
# We load modules here and remove any functions that they
# added as we may be called inside the same shell scope for another interface
run() {
local iface=${1} cmd=${2} r=1 RC_INDENTATION=${RC_INDENTATION} # so it will reset after function
local before starting=true
local -a MODULES mods

# We need to override the exit function as runscript.sh now checks
# for it. We need it so we can mark the service as inactive ourselves.
unset -f exit

eindent

unset_functions=${unset_functions:-false}
${unset_functions} && before="$( typeset -F )"
[[ ${cmd} == "stop" ]] && starting=false
if modules_load ${iface} ${starting} ; then
if [[ ${cmd} == "stop" ]]; then
# Reverse the module list for stopping
mods=( "${MODULES[@]}" )
for ((i = 0; i < ${#mods[@]}; i++)); do
MODULES[i]=${mods[((${#mods[@]} - i - 1))]}
done

run_stop ${iface} && r=0
else
run_start ${iface} && r=0
fi
fi

# We need to remove added functions before we quit as other init
# scripts may be launching afterwards
${unset_functions} && \
unset $( diff -U0 <( echo "${before}" ) <( echo "$( typeset -F )" ) 2>/dev/null \
| awk 'BEGIN { ORS = " "; } /+declare -f/ { print $3; }' ) 2>/dev/null

return ${r}
}

# bool start(void)
#
# Start entry point so that we only have one function
# which localises variables and unsets functions
start() {
einfo "Starting ${IFACE}"
run ${IFACE} start
return $?
}

# bool stop(void)
#
# Stop entry point so that we only have one function
# which localises variables and unsets functions
stop() {
einfo "Stopping ${IFACE}"
run ${IFACE} stop
return $?
}

# bool restart(void)
#
# Restart entry point
# We do this so as we only have to remove functions when stopping
restart() {
local unset_functions=true
service_started "${myservice}" && svc_stop
unset_functions=false
svc_start
return $?
}

# vim:ts=4

bandreabis
Advocate

Joined: 18 Feb 2005
Posts: 2495
Location: イタリアのロディで

Posted: Mon Jul 18, 2005 6:04 pm Post subject:

Thank you, thank you, thank you! Now it works! I don't know why, but net.eth0 (which is only a softlink to net.lo) has been cut! Emerged baselayout, etc-updated net.lo and now network works. Thank you a lot. Andrea (Mr.) [/code]

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