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https://github.com/CumulusNetworks/ifupdown2.git
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09b1b7fb0f
non-persistant storage This is a reimport of missing peices of commit f819c3602e56 in 2.5cl ifupdown2. commit log from 2.5cl: Introduce a lock file in non-persistent storage /run/network/ifstatelock to make sure the state file in persistent storage is cleaned up correctly ifupdown2 state file was moved to /var/tmp because /var/tmp was tmpfs and was large enough (100MB) for the state file. But it appears it has changed (or is not consistent) across all platforms. We can move it under /run, but /run again size varies on various platforms and it is too small on some platforms. This patch: - continues to keep the ifupdown2 state file under /var/tmp (because it needs the space) - ntroduces a second level /run/network/ifstatelock file that stays on non-persistant storage and is used to delete the state file at /boot up Closes: CM-9573, CM-7774 Review: CCR-3623 (original review) Tested-by: Mallikarjuna rao Uppalapati <mallik@cumulusnetworks.com> Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
151 lines
3.3 KiB
Bash
Executable File
151 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# This replaces the old init.d script, and is run from the networking.service
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# Only has start, stop, reload, because that's all systemd has.
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# restart is implemented in systemd by stop then start.
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PATH="/sbin:/bin"
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RUN_DIR="/run/network"
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IFSTATE_LOCKFILE="${RUN_DIR}/ifstatelock"
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STATE_DIR="/var/tmp/network"
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IFSTATE_FILE="${STATE_DIR}/ifstatenew"
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NAME=networking
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[ -x /sbin/ifup ] || exit 0
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[ -x /sbin/ifdown ] || exit 0
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CONFIGURE_INTERFACES=yes
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EXTRA_ARGS=
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[ -f /etc/default/networking ] && . /etc/default/networking
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[ "$VERBOSE" = yes ] && EXTRA_ARGS=-v
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[ "$DEBUG" = yes ] && EXTRA_ARGS="$EXTRA_ARGS -d"
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[ "$SYSLOG" = yes ] && EXTRA_ARGS="$EXTRA_ARGS --syslog"
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perf_options() {
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# At bootup lets set perfmode
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[ -f ${IFSTATE_LOCKFILE} ] && echo -n "" && return
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echo -n "--perfmode"
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}
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process_exclusions() {
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set -- $EXCLUDE_INTERFACES
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exclusions=""
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for d
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do
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exclusions="-X $d $exclusions"
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done
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echo $exclusions
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}
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check_network_file_systems() {
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[ -e /proc/mounts ] || return 0
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if [ -e /etc/iscsi/iscsi.initramfs ]; then
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echo ${NAME}':' "not deconfiguring network interfaces: iSCSI root is mounted."
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exit 0
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fi
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while read DEV MTPT FSTYPE REST; do
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case $DEV in
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/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
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echo ${NAME}':' "not deconfiguring network interfaces: network devices still mounted."
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exit 0
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;;
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esac
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case $FSTYPE in
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nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs|pvfs|pvfs2|fuse.httpfs|fuse.curlftpfs)
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echo ${NAME}':' "not deconfiguring network interfaces: network file systems still mounted."
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exit 0
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;;
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esac
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done < /proc/mounts
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}
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check_network_swap() {
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[ -e /proc/swaps ] || return 0
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while read DEV MTPT FSTYPE REST; do
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case $DEV in
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/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
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echo ${NAME}':' "not deconfiguring network interfaces: network swap still mounted."
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exit 0
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;;
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esac
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done < /proc/swaps
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}
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ifup_hotplug () {
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if [ -d /sys/class/net ]
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then
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ifaces=$(for iface in $(ifquery --list --allow=hotplug 2>/dev/null)
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do
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link=${iface##:*}
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link=${link##.*}
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if [ -e "/sys/class/net/$link" ] && [ "$(cat /sys/class/net/$link/operstate)" = up ]
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then
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echo "$iface"
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fi
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done)
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if [ -n "$ifaces" ]
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then
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ifup $ifaces "$@" || true
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fi
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fi
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}
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ifupdown_init() {
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# remove state file at boot
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[ ! -e ${IFSTATE_LOCKFILE} ] && rm -f ${IFSTATE_FILE}
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[ ! -e /run/network ] && mkdir -p /run/network &>/dev/null
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[ ! -e /etc/network/run ] && \
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ln -sf /run/network /etc/network/run &>/dev/null
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}
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case "$1" in
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start)
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ifupdown_init
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if [ "$CONFIGURE_INTERFACES" = no ]
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then
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echo ${NAME}':' "Not configuring network interfaces, see /etc/default/networking"
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exit 0
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fi
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set -f
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exclusions=$(process_exclusions)
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perfoptions=$(perf_options)
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echo ${NAME}':' "Configuring network interfaces"
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ifup -a $EXTRA_ARGS $exclusions $perfoptions
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;;
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stop)
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ifupdown_init
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check_network_file_systems
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check_network_swap
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exclusions=$(process_exclusions)
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echo ${NAME}':' "Deconfiguring network interfaces"
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ifdown -a $EXTRA_ARGS
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;;
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reload)
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ifupdown_init
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echo ${NAME}':' "Reloading network interfaces configuration"
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ifreload -a $EXTRA_ARGS
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;;
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*)
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echo ${NAME}':' "Usage: $0 {start|stop|reload}"
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exit 1
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;;
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esac
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exit 0
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