diff options
Diffstat (limited to 'heartbeat/iface-macvlan')
| -rwxr-xr-x | heartbeat/iface-macvlan | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/heartbeat/iface-macvlan b/heartbeat/iface-macvlan new file mode 100755 index 0000000..685f886 --- /dev/null +++ b/heartbeat/iface-macvlan @@ -0,0 +1,363 @@ +#!/bin/sh +# +# OCF Resource Agent compliant iface-macvlan script. +# +# Implements network MACVLAN interface management +# +# Resource script for MACVLAN dervice from Fabio M. Di Nitto iface-vlan +# script. +# +# Author: Ulrich Goettlich +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of version 2 of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# +# Further, this software is distributed without any warranty that it is +# free of the rightful claim of any third person regarding infringement +# or the like. Any license provided herein, whether implied or +# otherwise, applies only to this software file. Patent licenses, if +# any, provided herein do not apply to combinations of this program with +# other software, or any other product whatsoever. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. +# +# + +# TODO: +# +# OCF parameters are as below +# OCF_RESKEY_device +# OCF_RESKEY_name +# OCF_RESKEY_mode +# OCF_RESKEY_mac +# + +####################################################################### +# Initialization: + +: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +# Defaults +OCF_RESKEY_mode_default="bridge" + +: ${OCF_RESKEY_mode=${OCF_RESKEY_mode_default}} + +####################################################################### + +macvlan_usage() { + cat <<END +usage: $0 {start|stop|status|monitor|validate-all|meta-data} + +Expects to have a fully populated OCF RA-compliant environment set. +END +} + +macvlan_meta_data() { + cat <<END +<?xml version="1.0"?> +<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> +<resource-agent name="iface-macvlan" version="1.0"> + <version>1.0</version> + + <longdesc lang="en"> + This resource manages MACVLAN network interfaces. + It can add, remove, configure MACVLANs. + </longdesc> + + <shortdesc lang="en"> + Manages MACVLAN network interfaces. + </shortdesc> + + <parameters> + <parameter name="device" unique="0" required="1"> + <longdesc lang="en"> + Define the interface where MACVLAN should be attached. + </longdesc> + <shortdesc lang="en"> + Network interface. + </shortdesc> + <content type="string"/> + </parameter> + + <parameter name="name" unique="1" required="1"> + <longdesc lang="en"> + Define the MACVLAN NAME. It has to be a valid interface name (max 15 characters). + </longdesc> + <shortdesc lang="en"> + Define the MACVLAN NAME. + </shortdesc> + <content type="string"/> + </parameter> + + <parameter name="mode" unique="0"> + <longdesc lang="en"> + Define the name of the MACVLAN mode (currently only bridge is supported). + </longdesc> + <shortdesc lang="en"> + Mode of the macvlan. + </shortdesc> + <content type="string" default="${OCF_RESKEY_mode_default}" /> + </parameter> + + <parameter name="mac" unique="1"> + <longdesc lang="en"> + Set the interface MAC address explicitly. + </longdesc> + <shortdesc lang="en">MAC address of the macvlan</shortdesc> + <content type="string" /> +</parameter> + </parameters> + + <actions> + <action name="start" timeout="30s" /> + <action name="stop" timeout="20s" /> + <action name="status" timeout="20s" depth="0" interval="10s" /> + <action name="monitor" timeout="20s" depth="0" interval="10s" /> + <action name="meta-data" timeout="5s" /> + <action name="validate-all" timeout="20s" /> + </actions> +</resource-agent> +END +} + +# check if the interface is admin up/down + +iface_is_up() { + if ! $IP2UTIL -o link show $1 | \ + sed -e 's#.*<##g' -e 's#>.*##' -e 's#LOWER_UP##g' | \ + grep -q UP; then + return 1 + fi + return 0 +} + +# check if the slaves have link layer up/down +# see kernel network documentation on meaning of LOWER_UP flag +# for more in depth explanation on how it works +# NOTE: this check is not reliable in virt environment +# since interfaces are always LOWER_UP. There is no way +# from the guest to know if the host has disconnected somehow + +iface_lower_is_up() { + if ! $IP2UTIL -o link show $1 | \ + grep -q LOWER_UP; then + return 1 + fi + return 0 +} + +macvlan_validate() { + check_binary $IP2UTIL + + if [ -z "$OCF_RESKEY_device" ]; then + ocf_log err "Invalid device: value cannot be empty" + return $OCF_ERR_CONFIGURED + fi + + if [ -z "$OCF_RESKEY_name" ]; then + ocf_log err "Invalid name: value cannot be empty" + return $OCF_ERR_CONFIGURED + fi + + # the echo .. is the equivalent of strlen in bash + # + # /usr/include/linux/if.h:#define IFNAMSIZ 16 + # needs to include 0 byte end string + + if [ "${#OCF_RESKEY_name}" -gt 15 ]; then + ocf_log err "Invalid name: name is too long" + return $OCF_ERR_CONFIGURED + fi + + if [ ! -d "/sys/class/net" ]; then + ocf_log err "Unable to find sysfs network class in /sys" + return $OCF_ERR_GENERIC + fi + + if [ ! -e "/sys/class/net/$OCF_RESKEY_device" ]; then + ocf_log err "Invalid device: $OCF_RESKEY_device does not exists" + return $OCF_ERR_ARGS + fi + + if [ "${OCF_RESKEY_mode}" != "bridge" ]; then + ocf_log err "Invalid mode: only bridge mode is currently supported (because other modes are not tested)" + return $OCF_ERR_CONFIGURED + fi + + return 0 +} + +macvlan_check() { + if [ -e "/sys/class/net/$OCF_RESKEY_name" ]; then + if [ ! -e "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" ]; then + return $OCF_ERR_GENERIC + fi + else + if [ -e "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" ]; then + error="$(rm -f "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to remove stale lock file for macvlan $OCF_RESKEY_name: $error" + return $OCF_ERR_INSTALLED + fi + fi + return $OCF_NOT_RUNNING + fi + + if ! iface_is_up $OCF_RESKEY_name; then + ocf_log err "MACVLAN $OCF_RESKEY_name is administratively down" + return $OCF_ERR_GENERIC + fi + + if ! iface_lower_is_up $OCF_RESKEY_name; then + ocf_log err "MACVLAN $OCF_RESKEY_name has no active link-layer" + return $OCF_ERR_GENERIC + fi + + return $OCF_SUCCESS +} + +# we need a simpler stop version to clean after us if start fails +# without involving any error checking +# rolling back in case of failure is otherwise complex + +macvlan_force_stop() { + $IP2UTIL link delete "$OCF_RESKEY_name" >/dev/null 2>&1 + rm -f "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" 2>&1 +} + +macvlan_start() { + # check if the macvlan already exists + macvlan_check + ret=$? + if [ "$ret" != "$OCF_NOT_RUNNING" ]; then + return $ret + fi + + # create the MACVLAN + set_specific_mac="" + [ -n "${OCF_RESKEY_mac}" ] && set_specific_mac="address ${OCF_RESKEY_mac}" + error="$($IP2UTIL link add link "$OCF_RESKEY_device" ${set_specific_mac} name "$OCF_RESKEY_name" type macvlan mode "$OCF_RESKEY_mode" 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to create MACVLAN $OCF_RESKEY_name: $error" + return $OCF_ERR_GENERIC + fi + + # set the interface up + error="$($IP2UTIL link set dev "$OCF_RESKEY_device" up 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to set MACVLAN $OCF_RESKEY_device up: $error" + return $OCF_ERR_GENERIC + fi + + # set the macvlan up + error="$($IP2UTIL link set dev "$OCF_RESKEY_name" up 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to set MACVLAN $OCF_RESKEY_name up: $error" + return $OCF_ERR_GENERIC + fi + + error="$(touch "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to create lock file for MACVLAN $OCF_RESKEY_name: $error" + return $OCF_ERR_GENERIC + fi + + return $OCF_SUCCESS +} + +macvlan_stop() { + macvlan_check + ret=$? + if [ "$ret" = "$OCF_NOT_RUNNING" ]; then + return $OCF_SUCCESS + fi + if [ "$ret" != "$OCF_SUCCESS" ]; then + return $ret + fi + + # set macvlan down + error="$($IP2UTIL link set dev "$OCF_RESKEY_name" down 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to set MACVLAN $OCF_RESKEY_name down: $error" + return $OCF_ERR_GENERIC + fi + + # delete macvlan + error="$($IP2UTIL link delete "$OCF_RESKEY_name" 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to delete MACVLAN $OCF_RESKEY_name: $error" + return $OCF_ERR_GENERIC + fi + + error="$(rm -f "$HA_RSCTMP/iface-macvlan.$OCF_RESKEY_name" 2>&1)" + if [ "$?" != "0" ]; then + ocf_log err "Unable to remove lock file for MACVLAN $OCF_RESKEY_name: $error" + return $OCF_ERR_GENERIC + fi + + return $OCF_SUCCESS +} + +case $__OCF_ACTION in + meta-data) + macvlan_meta_data + exit $OCF_SUCCESS + ;; + usage|help) + macvlan_usage + exit $OCF_SUCCESS + ;; +esac + +if [ ! -d "$HA_RSCTMP" ]; then + ocf_log debug "$HA_RSCTMP not found, we are probably being executed manually" + mkdir -p "$HA_RSCTMP" +fi + +if [ -n "$__OCF_ACTION" ] && ! macvlan_validate; then + exit $OCF_ERR_CONFIGURED +fi + +case $__OCF_ACTION in + start|stop) + if ! ocf_is_root; then + ocf_log err "You must be root for $__OCF_ACTION operation." + exit $OCF_ERR_PERM + fi + ;; +esac + +case $__OCF_ACTION in + start) + macvlan_start + ret=$? + if [ "$ret" != "$OCF_SUCCESS" ]; then + macvlan_force_stop + fi + exit $ret + ;; + stop) + macvlan_stop + exit $? + ;; + status|monitor) + macvlan_check + exit $? + ;; + validate-all) + # macvlan_validate above does the trick + ;; + *) + macvlan_usage + exit $OCF_ERR_UNIMPLEMENTED + ;; +esac +# vi:sw=4:ts=8: |