/etc/init/networking.conf is in ifupdown 0.8.19.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | # networking - configure virtual network devices
#
# This task causes virtual network devices that do not have an associated
# kernel object to be started on boot.
description "configure virtual network devices"
emits static-network-up
emits net-device-up
emits deconfiguring-networking
start on (local-filesystems
and (stopped udevtrigger or container)) or runlevel [2345] or stopped networking RESULT=failed PROCESS=post-stop EXIT_STATUS=100
stop on unmounted-remote-filesystems
pre-start script
if [ "$UPSTART_EVENTS" = "stopped" ] && [ "$UPSTART_JOB" = "networking" ] && [ "$EXIT_STATUS" = "100" ]; then
exit 0
fi
mkdir -p /run/network
ifup -a
end script
post-stop script
if [ -z "$UPSTART_STOP_EVENTS" ]; then
echo "Stopping or restarting the networking job is not supported."
echo "Use ifdown & ifup to reconfigure desired interface."
exit 100
fi
log_warning_msg() {
echo $*
}
# These checks were taken from the Debian ifupdown.networking.init script
check_network_file_systems() {
[ -e /proc/mounts ] || return 0
if [ -e /etc/iscsi/iscsi.initramfs ]; then
log_warning_msg "not deconfiguring network interfaces: iSCSI root is mounted."
exit 0
fi
while read DEV MTPT FSTYPE REST; do
case $DEV in
/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
log_warning_msg "not deconfiguring network interfaces: network devices still mounted."
exit 0
;;
esac
case $FSTYPE in
nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs|pvfs|pvfs2|fuse.httpfs|fuse.curlftpfs)
log_warning_msg "not deconfiguring network interfaces: network file systems still mounted."
exit 0
;;
esac
done < /proc/mounts
}
check_network_swap() {
[ -e /proc/swaps ] || return 0
while read DEV MTPT FSTYPE REST; do
case $DEV in
/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
log_warning_msg "not deconfiguring network interfaces: network swap still mounted."
exit 0
;;
esac
done < /proc/swaps
}
check_network_file_systems
check_network_swap
# Anything that manages network interfaces *MUST* wait for this event
initctl emit deconfiguring-networking
ifdown -a --exclude=lo
end script
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