diff --git a/heartbeat/IPaddr2 b/heartbeat/IPaddr2 index 5f30b8f98..091bea418 100755 --- a/heartbeat/IPaddr2 +++ b/heartbeat/IPaddr2 @@ -1,1357 +1,1362 @@ #!/bin/sh # # $Id: IPaddr2.in,v 1.24 2006/08/09 13:01:54 lars Exp $ # # OCF Resource Agent compliant IPaddr2 script. # # Based on work by Tuomo Soini, ported to the OCF RA API by Lars # Marowsky-Brée. Implements Cluster Alias IP functionality too. # # Cluster Alias IP cleanup, fixes and testing by Michael Schwartzkopff # # # Copyright (c) 2003 Tuomo Soini # Copyright (c) 2004-2006 SUSE LINUX AG, Lars Marowsky-Brée # All Rights Reserved. # # 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: # - There ought to be an ocf_run_cmd function which does all logging, # timeout handling etc for us # - Make this the standard IP address agent on Linux; the other # platforms simply should ignore the additional parameters OR can use # the legacy heartbeat resource script... # - Check LVS <-> clusterip incompatibilities. # # OCF parameters are as below # OCF_RESKEY_ip # OCF_RESKEY_broadcast # OCF_RESKEY_nic # OCF_RESKEY_cidr_netmask # OCF_RESKEY_iflabel # OCF_RESKEY_mac # OCF_RESKEY_clusterip_hash # OCF_RESKEY_arp_interval # OCF_RESKEY_arp_count # OCF_RESKEY_arp_bg # OCF_RESKEY_preferred_lft # # OCF_RESKEY_CRM_meta_clone # OCF_RESKEY_CRM_meta_clone_max ####################################################################### # Initialization: : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs . ${OCF_FUNCTIONS_DIR}/findif.sh # Defaults OCF_RESKEY_ip_default="" OCF_RESKEY_cidr_netmask_default="" OCF_RESKEY_broadcast_default="" OCF_RESKEY_iflabel_default="" OCF_RESKEY_cidr_netmask_default="" OCF_RESKEY_lvs_support_default=false OCF_RESKEY_lvs_ipv6_addrlabel_default=false OCF_RESKEY_lvs_ipv6_addrlabel_value_default=99 OCF_RESKEY_clusterip_hash_default="sourceip-sourceport" OCF_RESKEY_mac_default="" OCF_RESKEY_unique_clone_address_default=false OCF_RESKEY_arp_interval_default=200 OCF_RESKEY_arp_count_default=5 OCF_RESKEY_arp_count_refresh_default=0 OCF_RESKEY_arp_bg_default="" OCF_RESKEY_arp_sender_default="" OCF_RESKEY_send_arp_opts_default="" OCF_RESKEY_flush_routes_default="false" OCF_RESKEY_run_arping_default=false OCF_RESKEY_nodad_default=false OCF_RESKEY_noprefixroute_default="false" OCF_RESKEY_preferred_lft_default="forever" OCF_RESKEY_network_namespace_default="" : ${OCF_RESKEY_ip=${OCF_RESKEY_ip_default}} : ${OCF_RESKEY_cidr_netmask=${OCF_RESKEY_cidr_netmask_default}} : ${OCF_RESKEY_broadcast=${OCF_RESKEY_broadcast_default}} : ${OCF_RESKEY_iflabel=${OCF_RESKEY_iflabel_default}} : ${OCF_RESKEY_lvs_support=${OCF_RESKEY_lvs_support_default}} : ${OCF_RESKEY_lvs_ipv6_addrlabel=${OCF_RESKEY_lvs_ipv6_addrlabel_default}} : ${OCF_RESKEY_lvs_ipv6_addrlabel_value=${OCF_RESKEY_lvs_ipv6_addrlabel_value_default}} : ${OCF_RESKEY_clusterip_hash=${OCF_RESKEY_clusterip_hash_default}} : ${OCF_RESKEY_mac=${OCF_RESKEY_mac_default}} : ${OCF_RESKEY_unique_clone_address=${OCF_RESKEY_unique_clone_address_default}} : ${OCF_RESKEY_arp_interval=${OCF_RESKEY_arp_interval_default}} : ${OCF_RESKEY_arp_count=${OCF_RESKEY_arp_count_default}} : ${OCF_RESKEY_arp_count_refresh=${OCF_RESKEY_arp_count_refresh_default}} : ${OCF_RESKEY_arp_bg=${OCF_RESKEY_arp_bg_default}} : ${OCF_RESKEY_arp_sender=${OCF_RESKEY_arp_sender_default}} : ${OCF_RESKEY_send_arp_opts=${OCF_RESKEY_send_arp_opts_default}} : ${OCF_RESKEY_flush_routes=${OCF_RESKEY_flush_routes_default}} : ${OCF_RESKEY_run_arping=${OCF_RESKEY_run_arping_default}} : ${OCF_RESKEY_nodad=${OCF_RESKEY_nodad_default}} : ${OCF_RESKEY_noprefixroute=${OCF_RESKEY_noprefixroute_default}} : ${OCF_RESKEY_preferred_lft=${OCF_RESKEY_preferred_lft_default}} : ${OCF_RESKEY_network_namespace=${OCF_RESKEY_network_namespace_default}} ####################################################################### SENDARP=$HA_BIN/send_arp SENDUA=$HA_BIN/send_ua FINDIF=findif VLDIR=$HA_RSCTMP SENDARPPIDDIR=$HA_RSCTMP CIP_lockfile=$HA_RSCTMP/IPaddr2-CIP-${OCF_RESKEY_ip} IPADDR2_CIP_IPTABLES=$IPTABLES ####################################################################### meta_data() { cat < 1.0 This Linux-specific resource manages IP alias IP addresses. It can add an IP alias, or remove one. In addition, it can implement Cluster Alias IP functionality if invoked as a clone resource. If used as a clone, "shared address with a trivial, stateless (autonomous) load-balancing/mutual exclusion on ingress" mode gets applied (as opposed to "assume resource uniqueness" mode otherwise). For that, Linux firewall (kernel and userspace) is assumed, and since recent distributions are ambivalent in plain "iptables" command to particular back-end resolution, "iptables-legacy" (when present) gets prioritized so as to avoid incompatibilities (note that respective ipt_CLUSTERIP firewall extension in use here is, at the same time, marked deprecated, yet said "legacy" layer can make it workable, literally, to this day) with "netfilter" one (as in "iptables-nft"). In that case, you should explicitly set clone-node-max >= 2, and/or clone-max < number of nodes. In case of node failure, clone instances need to be re-allocated on surviving nodes. This would not be possible if there is already an instance on those nodes, and clone-node-max=1 (which is the default). When the specified IP address gets assigned to a respective interface, the resource agent sends unsolicited ARP (Address Resolution Protocol, IPv4) or NA (Neighbor Advertisement, IPv6) packets to inform neighboring machines about the change. This functionality is controlled for both IPv4 and IPv6 by shared 'arp_*' parameters. Manages virtual IPv4 and IPv6 addresses (Linux specific version) The IPv4 (dotted quad notation) or IPv6 address (colon hexadecimal notation) example IPv4 "192.168.1.1". example IPv6 "2001:db8:DC28:0:0:FC57:D4C8:1FFF". IPv4 or IPv6 address The base network interface on which the IP address will be brought online. If left empty, the script will try and determine this from the routing table. Do NOT specify an alias interface in the form eth0:1 or anything here; rather, specify the base interface only. If you want a label, see the iflabel parameter. Prerequisite: There must be at least one static IP address, which is not managed by the cluster, assigned to the network interface. If you can not assign any static IP address on the interface, modify this kernel parameter: sysctl -w net.ipv4.conf.all.promote_secondaries=1 # (or per device) Network interface The netmask for the interface in CIDR format (e.g., 24 and not 255.255.255.0) If unspecified, the script will also try to determine this from the routing table. CIDR netmask Broadcast address associated with the IP. It is possible to use the special symbols '+' and '-' instead of the broadcast address. In this case, the broadcast address is derived by setting/resetting the host bits of the interface prefix. Broadcast address You can specify an additional label for your IP address here. This label is appended to your interface name. The kernel allows alphanumeric labels up to a maximum length of 15 characters including the interface name and colon (e.g. eth0:foobar1234) A label can be specified in nic parameter but it is deprecated. If a label is specified in nic name, this parameter has no effect. Interface label Enable support for LVS Direct Routing configurations. In case a IP address is stopped, only move it to the loopback device to allow the local node to continue to service requests, but no longer advertise it on the network. Notes for IPv6: It is not necessary to enable this option on IPv6. Instead, enable 'lvs_ipv6_addrlabel' option for LVS-DR usage on IPv6. Enable support for LVS DR Enable adding IPv6 address label so IPv6 traffic originating from the address's interface does not use this address as the source. This is necessary for LVS-DR health checks to realservers to work. Without it, the most recently added IPv6 address (probably the address added by IPaddr2) will be used as the source address for IPv6 traffic from that interface and since that address exists on loopback on the realservers, the realserver response to pings/connections will never leave its loopback. See RFC3484 for the detail of the source address selection. See also 'lvs_ipv6_addrlabel_value' parameter. Enable adding IPv6 address label. Specify IPv6 address label value used when 'lvs_ipv6_addrlabel' is enabled. The value should be an unused label in the policy table which is shown by 'ip addrlabel list' command. You would rarely need to change this parameter. IPv6 address label value. Set the interface MAC address explicitly. Currently only used in case of the Cluster IP Alias. Leave empty to chose automatically. Cluster IP MAC address Specify the hashing algorithm used for the Cluster IP functionality. Cluster IP hashing function If true, add the clone ID to the supplied value of IP to create a unique address to manage Create a unique address for cloned instances Specify the interval between unsolicited ARP (IPv4) or NA (IPv6) packets in milliseconds. This parameter is deprecated and used for the backward compatibility only. It is effective only for the send_arp binary which is built with libnet, and send_ua for IPv6. It has no effect for other arp_sender. ARP/NA packet interval in ms (deprecated) Number of unsolicited ARP (IPv4) or NA (IPv6) packets to send at resource initialization. ARP/NA packet count sent during initialization For IPv4, number of unsolicited ARP packets to send during resource monitoring. Doing so helps mitigate issues of stuck ARP caches resulting from split-brain situations. ARP packet count sent during monitoring Whether or not to send the ARP (IPv4) or NA (IPv6) packets in the background. The default is true for IPv4 and false for IPv6. ARP/NA from background For IPv4, the program to send ARP packets with on start. Available options are: - send_arp: default - ipoibarping: default for infiniband interfaces if ipoibarping is available - iputils_arping: use arping in iputils package - libnet_arping: use another variant of arping based on libnet ARP sender For IPv4, extra options to pass to the arp_sender program. Available options are vary depending on which arp_sender is used. A typical use case is specifying '-A' for iputils_arping to use ARP REPLY instead of ARP REQUEST as Gratuitous ARPs. Options for ARP sender Flush the routing table on stop. This is for applications which use the cluster IP address and which run on the same physical host that the IP address lives on. The Linux kernel may force that application to take a shortcut to the local loopback interface, instead of the interface the address is really bound to. Under those circumstances, an application may, somewhat unexpectedly, continue to use connections for some time even after the IP address is deconfigured. Set this parameter in order to immediately disable said shortcut when the IP address goes away. Flush kernel routing table on stop For IPv4, whether or not to run arping for collision detection check. Run arping for IPv4 collision detection check For IPv6, do not perform Duplicate Address Detection when adding the address. Use nodad flag Use noprefixroute flag (see 'man ip-address'). Use noprefixroute flag For IPv6, set the preferred lifetime of the IP address. This can be used to ensure that the created IP address will not be used as a source address for routing. Expects a value as specified in section 5.5.4 of RFC 4862. IPv6 preferred lifetime Specifies the network namespace to operate within. The namespace must already exist, and the interface to be used must be within the namespace. Network namespace to use END exit $OCF_SUCCESS } ip_init() { local rc if [ X`uname -s` != "XLinux" ]; then ocf_exit_reason "IPaddr2 only supported Linux." exit $OCF_ERR_INSTALLED fi if [ X"$OCF_RESKEY_ip" = "X" ] && [ "$__OCF_ACTION" != "stop" ]; then ocf_exit_reason "IP address (the ip parameter) is mandatory" exit $OCF_ERR_CONFIGURED fi if case $__OCF_ACTION in start|stop) ocf_is_root;; *) true;; esac then : YAY! else ocf_exit_reason "You must be root for $__OCF_ACTION operation." exit $OCF_ERR_PERM fi BASEIP="$OCF_RESKEY_ip" BRDCAST="$OCF_RESKEY_broadcast" NIC="$OCF_RESKEY_nic" # Note: We had a version out there for a while which used # netmask instead of cidr_netmask. Don't remove this aliasing code! if [ ! -z "$OCF_RESKEY_netmask" -a -z "$OCF_RESKEY_cidr_netmask" ] then OCF_RESKEY_cidr_netmask=$OCF_RESKEY_netmask export OCF_RESKEY_cidr_netmask fi NETMASK="$OCF_RESKEY_cidr_netmask" IFLABEL="$OCF_RESKEY_iflabel" IF_MAC="$OCF_RESKEY_mac" IP_INC_GLOBAL=${OCF_RESKEY_CRM_meta_clone_max:-1} IP_INC_NO=`expr ${OCF_RESKEY_CRM_meta_clone:-0} + 1` if ocf_is_true ${OCF_RESKEY_lvs_support} && [ $IP_INC_GLOBAL -gt 1 ]; then ocf_exit_reason "LVS and load sharing do not go together well" exit $OCF_ERR_CONFIGURED fi if ocf_is_decimal "$IP_INC_GLOBAL" && [ $IP_INC_GLOBAL -gt 0 ]; then : else ocf_exit_reason "Invalid meta-attribute clone_max [$IP_INC_GLOBAL], should be positive integer" exit $OCF_ERR_CONFIGURED fi echo $OCF_RESKEY_ip | grep -qs ":" if [ $? -ne 0 ];then FAMILY=inet if ocf_is_true $OCF_RESKEY_lvs_ipv6_addrlabel ;then ocf_exit_reason "IPv4 does not support lvs_ipv6_addrlabel" exit $OCF_ERR_CONFIGURED fi if [ -z "$OCF_RESKEY_arp_bg" ]; then OCF_RESKEY_arp_bg=true fi else FAMILY=inet6 # address sanitization defined in RFC5952 SANITIZED_IP=$($IP2UTIL route get $OCF_RESKEY_ip 2> /dev/null | awk '$1~/:/ {print $1} $2~/:/ {print $2}') if [ -n "$SANITIZED_IP" ]; then OCF_RESKEY_ip="$SANITIZED_IP" fi if ocf_is_true $OCF_RESKEY_lvs_support ;then ocf_exit_reason "The IPv6 does not support lvs_support" exit $OCF_ERR_CONFIGURED fi if ocf_is_true $OCF_RESKEY_lvs_ipv6_addrlabel ;then if ocf_is_decimal "$OCF_RESKEY_lvs_ipv6_addrlabel_value" && [ $OCF_RESKEY_lvs_ipv6_addrlabel_value -ge 0 ]; then : else ocf_exit_reason "Invalid lvs_ipv6_addrlabel_value [$OCF_RESKEY_lvs_ipv6_addrlabel_value], should be positive integer" exit $OCF_ERR_CONFIGURED fi fi if [ -z "$OCF_RESKEY_arp_bg" ]; then OCF_RESKEY_arp_bg=false fi fi # support nic:iflabel format in nic parameter case $NIC in *:*) IFLABEL=`echo $NIC | sed 's/[^:]*://'` NIC=`echo $NIC | sed 's/:.*//'` # only the base name should be passed to findif OCF_RESKEY_nic=$NIC ;; esac # $FINDIF takes its parameters from the environment # NICINFO=`$FINDIF` rc=$? if [ $rc -eq 0 ] then - NICINFO=`echo "$NICINFO" | sed -e 's/netmask\ //;s/broadcast\ //'` + NICINFO=`echo "$NICINFO" | sed -e 's/netmask\ //;s/broadcast\ //;s/metric\ //'` NIC=`echo "$NICINFO" | cut -d" " -f1` NETMASK=`echo "$NICINFO" | cut -d" " -f2` BRDCAST=`echo "$NICINFO" | cut -d" " -f3` + METRIC=`echo "$NICINFO" | cut -d" " -f4` else # findif couldn't find the interface if ocf_is_probe; then ocf_log info "[$FINDIF] failed" exit $OCF_NOT_RUNNING elif [ "$__OCF_ACTION" = stop ]; then ocf_log warn "[$FINDIF] failed" exit $OCF_SUCCESS else ocf_exit_reason "[$FINDIF] failed" exit $rc fi fi SENDARPPIDFILE="$SENDARPPIDDIR/send_arp-$OCF_RESKEY_ip" if [ -n "$IFLABEL" ]; then IFLABEL=${NIC}:${IFLABEL} if [ ${#IFLABEL} -gt 15 ]; then ocf_exit_reason "Interface label [$IFLABEL] exceeds maximum character limit of 15" exit $OCF_ERR_CONFIGURED fi fi if [ "$IP_INC_GLOBAL" -gt 1 ] && ! ocf_is_true "$OCF_RESKEY_unique_clone_address"; then IP_CIP="yes" IP_CIP_HASH="${OCF_RESKEY_clusterip_hash}" if [ -z "$IF_MAC" ]; then # Choose a MAC # 1. Concatenate some input together # 2. This doesn't need to be a cryptographically # secure hash. # 3. Drop everything after the first 6 octets (12 chars) # 4. Delimit the octets with ':' # 5. Make sure the first octet is odd, # so the result is a multicast MAC IF_MAC=`echo $OCF_RESKEY_ip $NETMASK $BRDCAST | \ md5sum | \ sed -e 's#\(............\).*#\1#' \ -e 's#..#&:#g; s#:$##' \ -e 's#^\(.\)[02468aAcCeE]#\11#'` fi IP_CIP_FILE="/proc/net/ipt_CLUSTERIP/$OCF_RESKEY_ip" fi } # # Find out which interfaces serve the given IP address and netmask. # The arguments are an IP address and a netmask. # Its output are interface names devided by spaces (e.g., "eth0 eth1"). # find_interface() { local ipaddr="$1" local netmask="$2" # # List interfaces but exclude FreeS/WAN ipsecN virtual interfaces # local iface="`$IP2UTIL -o -f $FAMILY addr show \ | grep " $ipaddr/$netmask" \ | cut -d ' ' -f2 \ | grep -v '^ipsec[0-9][0-9]*$'`" echo "$iface" return 0 } # # Delete an interface # delete_interface () { ipaddr="$1" iface="$2" netmask="$3" CMD="$IP2UTIL -f $FAMILY addr delete $ipaddr/$netmask dev $iface" ocf_run $CMD || return $OCF_ERR_GENERIC if ocf_is_true $OCF_RESKEY_flush_routes; then ocf_run $IP2UTIL route flush cache fi if [ "$FAMILY" = "inet6" ] && ocf_is_true $OCF_RESKEY_lvs_ipv6_addrlabel ;then delete_ipv6_addrlabel $ipaddr fi return $OCF_SUCCESS } # # Add an interface # add_interface () { - local cmd msg extra_opts ipaddr netmask broadcast iface label + local cmd msg extra_opts ipaddr netmask broadcast iface label metric ipaddr="$1" netmask="$2" broadcast="$3" iface="$4" label="$5" + metric="$6" if [ "$FAMILY" = "inet" ] && ocf_is_true $OCF_RESKEY_run_arping && check_binary arping; then arping -q -c 2 -w 3 -D -I $iface $ipaddr if [ $? = 1 ]; then ocf_log err "IPv4 address collision $ipaddr [DAD]" return $OCF_ERR_GENERIC fi fi if [ "$FAMILY" = "inet6" ] && ocf_is_true $OCF_RESKEY_lvs_ipv6_addrlabel ;then add_ipv6_addrlabel $ipaddr fi cmd="$IP2UTIL -f $FAMILY addr add $ipaddr/$netmask dev $iface" msg="Adding $FAMILY address $ipaddr/$netmask to device $iface" if [ "$broadcast" != "none" ]; then cmd="$IP2UTIL -f $FAMILY addr add $ipaddr/$netmask brd $broadcast dev $iface" msg="Adding $FAMILY address $ipaddr/$netmask with broadcast address $broadcast to device $iface" fi extra_opts="" + if [ "$FAMILY" = "inet6" ]; then + extra_opts="$extra_opts metric $metric" + fi if [ "$FAMILY" = "inet6" ] && ocf_is_true "${OCF_RESKEY_nodad}"; then extra_opts="$extra_opts nodad" fi if ocf_is_true "${OCF_RESKEY_noprefixroute}"; then extra_opts="$extra_opts noprefixroute" fi if [ ! -z "$label" ]; then extra_opts="$extra_opts label $label" fi if [ "$FAMILY" = "inet6" ] ;then extra_opts="$extra_opts preferred_lft $OCF_RESKEY_preferred_lft" fi if [ -n "$extra_opts" ]; then cmd="$cmd$extra_opts" msg="$msg (with$extra_opts)" fi ocf_log info "$msg" ocf_run $cmd || return $OCF_ERR_GENERIC msg="Bringing device $iface up" cmd="$IP2UTIL link set $iface up" ocf_log info "$msg" ocf_run $cmd || return $OCF_ERR_GENERIC return $OCF_SUCCESS } # # Delete a route # delete_route () { prefix="$1" iface="$2" CMD="$IP2UTIL route delete $prefix dev $iface" ocf_log info "$CMD" $CMD return $? } # On Linux systems the (hidden) loopback interface may # conflict with the requested IP address. If so, this # unoriginal code will remove the offending loopback address # and save it in VLDIR so it can be added back in later # when the IPaddr is released. # # TODO: This is very ugly and should be controlled by an additional # instance parameter. Or even: multi-state, with the IP only being # "active" on the master!? # remove_conflicting_loopback() { ipaddr="$1" netmask="$2" broadcast="$3" ifname="$4" ocf_log info "Removing conflicting loopback $ifname." if echo "$ipaddr $netmask $broadcast $ifname" > "$VLDIR/$ipaddr" then : Saved loopback information in $VLDIR/$ipaddr else ocf_log err "Could not save conflicting loopback $ifname." \ "it will not be restored." fi delete_interface "$ipaddr" "$ifname" "$netmask" # Forcibly remove the route (if it exists) to the loopback. delete_route "$ipaddr" "$ifname" } # # On Linux systems the (hidden) loopback interface may # need to be restored if it has been taken down previously # by remove_conflicting_loopback() # restore_loopback() { ipaddr="$1" if [ -s "$VLDIR/$ipaddr" ]; then ifinfo=`cat "$VLDIR/$ipaddr"` ocf_log info "Restoring loopback IP Address " \ "$ifinfo." add_interface $ifinfo rm -f "$VLDIR/$ipaddr" fi } add_ipv6_addrlabel() { local cmd ipaddr value ipaddr="$1" value="$OCF_RESKEY_lvs_ipv6_addrlabel_value" cmd="$IP2UTIL addrlabel add prefix $ipaddr label $value" ocf_log info "Adding IPv6 address label prefix $ipaddr label $value" ocf_run $cmd || ocf_log warn "$cmd failed." } delete_ipv6_addrlabel() { local cmd ipaddr value ipaddr="$1" value="$OCF_RESKEY_lvs_ipv6_addrlabel_value" cmd="$IP2UTIL addrlabel del prefix $ipaddr label $value" ocf_run $cmd # an error can be ignored } is_infiniband() { $IP2UTIL link show $NIC | grep link/infiniband >/dev/null } log_arp_sender() { local cmdline local output local rc cmdline="$@" output=$($cmdline 2>&1) rc=$? if [ $rc -ne 0 ] && \ [ "$ARP_SENDER" != "libnet_arping" ] ; then # libnet_arping always return an error as no answers ocf_log err "Could not send gratuitous arps: rc=$rc" fi ocf_log $LOGLEVEL "$output" } # wrapper function to manage PID file to run arping in background run_with_pidfile() { local cmdline local pid local rc cmdline="$@" $cmdline & pid=$! echo "$pid" > $SENDARPPIDFILE wait $pid rc=$? rm -f $SENDARPPIDFILE return $rc } build_arp_sender_cmd() { case "$ARP_SENDER" in send_arp) if [ "x$IP_CIP" = "xyes" ] ; then if [ x = "x$IF_MAC" ] ; then MY_MAC=auto else # send_arp.linux should return without doing anything in this case MY_MAC=`echo ${IF_MAC} | sed -e 's/://g'` fi else MY_MAC=auto fi ARGS="$OCF_RESKEY_send_arp_opts -i $OCF_RESKEY_arp_interval -r $ARP_COUNT -p $SENDARPPIDFILE $NIC $OCF_RESKEY_ip $MY_MAC not_used not_used" ARP_SENDER_CMD="$SENDARP $ARGS" ;; iputils_arping) ARGS="$OCF_RESKEY_send_arp_opts -U -c $ARP_COUNT -I $NIC $OCF_RESKEY_ip" ARP_SENDER_CMD="run_with_pidfile arping $ARGS" ;; libnet_arping) ARGS="$OCF_RESKEY_send_arp_opts -U -c $ARP_COUNT -i $NIC -S $OCF_RESKEY_ip $OCF_RESKEY_ip" ARP_SENDER_CMD="run_with_pidfile arping $ARGS" ;; ipoibarping) ARGS="-q -c $ARP_COUNT -U -I $NIC $OCF_RESKEY_ip" ARP_SENDER_CMD="ipoibarping $ARGS" ;; *) # should not occur ocf_exit_reason "unrecognized arp_sender value: $ARP_SENDER" exit $OCF_ERR_GENERIC ;; esac } # # Send Unsolicited ARPs to update neighbor's ARP cache # run_arp_sender() { if [ "x$1" = "xrefresh" ] ; then ARP_COUNT=$OCF_RESKEY_arp_count_refresh LOGLEVEL=debug else ARP_COUNT=$OCF_RESKEY_arp_count LOGLEVEL=info fi if [ $ARP_COUNT -eq 0 ] ; then return fi # do not need to send Gratuitous ARPs in the Cluster IP configuration # except send_arp.libnet binary to retain the old behavior if [ "x$IP_CIP" = "xyes" ] && \ [ "x$ARP_SENDER" != "xsend_arp" ] ; then ocf_log info "Gratuitous ARPs are not sent in the Cluster IP configuration" return fi # prepare arguments for each arp sender program # $ARP_SENDER_CMD should be set build_arp_sender_cmd ocf_log $LOGLEVEL "$ARP_SENDER_CMD" if ocf_is_true $OCF_RESKEY_arp_bg; then log_arp_sender $ARP_SENDER_CMD & else log_arp_sender $ARP_SENDER_CMD fi } log_send_ua() { local cmdline local output local rc cmdline="$@" output=$($cmdline 2>&1) rc=$? if [ $rc -ne 0 ] ; then ocf_log err "Could not send ICMPv6 Unsolicited Neighbor Advertisements: rc=$rc" fi ocf_log info "$output" return $rc } # # Run send_ua to note send ICMPv6 Unsolicited Neighbor Advertisements. # run_send_ua() { local i # Duplicate Address Detection [DAD] # Kernel will flag the IP as 'tentative' until it ensured that # there is no duplicates. # If there is, it will flag it as 'dadfailed' for i in $(seq 1 10); do ipstatus=$($IP2UTIL -o -f $FAMILY addr show dev $NIC to $OCF_RESKEY_ip/$NETMASK) case "$ipstatus" in *dadfailed*) ocf_log err "IPv6 address collision $OCF_RESKEY_ip [DAD]" $IP2UTIL -f $FAMILY addr del dev $NIC $OCF_RESKEY_ip/$NETMASK if [ $? -ne 0 ]; then ocf_log err "Could not delete IPv6 address" fi return $OCF_ERR_GENERIC ;; *tentative*) if [ $i -eq 10 ]; then ocf_log warn "IPv6 address : DAD is still in tentative" fi ;; *) break ;; esac sleep 1 done # Now the address should be usable ARGS="-i $OCF_RESKEY_arp_interval -c $OCF_RESKEY_arp_count $OCF_RESKEY_ip $NETMASK $NIC" ocf_log info "$SENDUA $ARGS" if ocf_is_true $OCF_RESKEY_arp_bg; then log_send_ua $SENDUA $ARGS & else log_send_ua $SENDUA $ARGS fi } # Do we already serve this IP address on the given $NIC? # # returns: # ok = served (for CIP: + hash bucket) # partial = served and no hash bucket (CIP only) # partial2 = served and no CIP iptables rule # no = nothing # ip_served() { if [ -z "$NIC" ]; then # no nic found or specified echo "no" return 0 fi cur_nic="`find_interface $OCF_RESKEY_ip $NETMASK`" if [ -z "$cur_nic" ]; then echo "no" return 0 fi if [ -z "$IP_CIP" ]; then for i in $cur_nic; do # only mark as served when on the same interfaces as $NIC [ "$i" = "$NIC" ] || continue echo "ok" return 0 done # There used to be logic here to pretend "not served", # if ${OCF_RESKEY_lvs_support} was enabled, and the IP was # found active on "lo*" only. With lvs_support on, you should # have NIC != lo, so thats already filtered # by the continue above. echo "no" return 0 fi # Special handling for the CIP: if [ ! -e $IP_CIP_FILE ]; then echo "partial2" return 0 fi if egrep -q "(^|,)${IP_INC_NO}(,|$)" $IP_CIP_FILE ; then echo "ok" return 0 else echo "partial" return 0 fi exit $OCF_ERR_GENERIC } ####################################################################### ip_usage() { cat <$IP_CIP_FILE fi if [ "$ip_status" = "no" ]; then if ocf_is_true ${OCF_RESKEY_lvs_support}; then for i in `find_interface $OCF_RESKEY_ip 32`; do case $i in lo*) remove_conflicting_loopback $OCF_RESKEY_ip 32 255.255.255.255 lo ;; esac done fi - add_interface $OCF_RESKEY_ip $NETMASK ${BRDCAST:-none} $NIC $IFLABEL + add_interface "$OCF_RESKEY_ip" "$NETMASK" "${BRDCAST:-none}" "$NIC" "$IFLABEL" "$METRIC" rc=$? if [ $rc -ne $OCF_SUCCESS ]; then ocf_exit_reason "Failed to add $OCF_RESKEY_ip" exit $rc fi fi case $NIC in lo*) : no need to run send_arp on loopback ;; *) if [ $FAMILY = "inet" ];then run_arp_sender else if [ -x $SENDUA ]; then run_send_ua if [ $? -ne 0 ]; then ocf_exit_reason "run_send_ua failed." exit $OCF_ERR_GENERIC fi fi fi ;; esac exit $OCF_SUCCESS } ip_stop() { local ip_del_if="yes" if [ -n "$IP_CIP" ]; then # Cluster IPs need special processing when the last bucket # is removed from the node... take a lock to make sure only one # process executes that code ocf_take_lock $CIP_lockfile ocf_release_lock_on_exit $CIP_lockfile fi if [ -f "$SENDARPPIDFILE" ] ; then kill `cat "$SENDARPPIDFILE"` if [ $? -ne 0 ]; then ocf_log warn "Could not kill previously running send_arp for $OCF_RESKEY_ip" else ocf_log info "killed previously running send_arp for $OCF_RESKEY_ip" fi rm -f "$SENDARPPIDFILE" fi local ip_status=`ip_served` ocf_log info "IP status = $ip_status, IP_CIP=$IP_CIP" if [ $ip_status = "no" ]; then : Requested interface not in use exit $OCF_SUCCESS fi if [ -n "$IP_CIP" ] && [ $ip_status != "partial2" ]; then if [ $ip_status = "partial" ]; then exit $OCF_SUCCESS fi echo "-$IP_INC_NO" >$IP_CIP_FILE if [ "x$(cat $IP_CIP_FILE)" = "x" ]; then ocf_log info $OCF_RESKEY_ip, $IP_CIP_HASH i=1 while [ $i -le $IP_INC_GLOBAL ]; do ocf_log info $i $IPADDR2_CIP_IPTABLES -D INPUT -d $OCF_RESKEY_ip -i $NIC -j CLUSTERIP \ --new \ --clustermac $IF_MAC \ --total-nodes $IP_INC_GLOBAL \ --local-node $i \ --hashmode $IP_CIP_HASH i=`expr $i + 1` done else ip_del_if="no" fi fi if [ "$ip_del_if" = "yes" ]; then delete_interface $OCF_RESKEY_ip $NIC $NETMASK if [ $? -ne 0 ]; then ocf_exit_reason "Unable to remove IP [${OCF_RESKEY_ip} from interface [ $NIC ]" exit $OCF_ERR_GENERIC fi if ocf_is_true ${OCF_RESKEY_lvs_support}; then restore_loopback "$OCF_RESKEY_ip" fi fi exit $OCF_SUCCESS } ip_monitor() { # TODO: Implement more elaborate monitoring like checking for # interface health maybe via a daemon like FailSafe etc... local ip_status=`ip_served` case $ip_status in ok) run_arp_sender refresh return $OCF_SUCCESS ;; partial|no|partial2) exit $OCF_NOT_RUNNING ;; *) # Errors on this interface? return $OCF_ERR_GENERIC ;; esac } # make sure that we have something to send ARPs with set_send_arp_program() { ARP_SENDER=send_arp if [ -n "$OCF_RESKEY_arp_sender" ]; then case "$OCF_RESKEY_arp_sender" in send_arp) check_binary $SENDARP ;; iputils_arping) check_binary arping ;; libnet_arping) check_binary arping ;; ipoibarping) check_binary ipoibarping ;; *) ocf_exit_reason "unrecognized arp_sender value: $OCF_RESKEY_arp_sender" exit $OCF_ERR_CONFIGURED ;; esac ARP_SENDER="$OCF_RESKEY_arp_sender" else if is_infiniband; then ARP_SENDER=ipoibarping if ! have_binary ipoibarping; then [ "$__OCF_ACTION" = start ] && ocf_log warn "using send_arp for infiniband because ipoibarping is not available (set arp_sender to \"send_arp\" to suppress this message)" check_binary $SENDARP ARP_SENDER=send_arp fi fi fi } ip_validate() { check_binary $IP2UTIL IP_CIP= if [ -n "$OCF_RESKEY_network_namespace" ]; then OCF_RESKEY_network_namespace= exec $IP2UTIL netns exec "$OCF_RESKEY_network_namespace" "$0" "$__OCF_ACTION" fi ip_init set_send_arp_program if [ -n "$IP_CIP" ]; then if have_binary "$IPTABLES_LEGACY"; then IPADDR2_CIP_IPTABLES="$IPTABLES_LEGACY" fi check_binary "$IPADDR2_CIP_IPTABLES" check_binary $MODPROBE fi # $BASEIP, $NETMASK, $NIC , $IP_INC_GLOBAL, and $BRDCAST have been checked within ip_init, # do not bother here. if ocf_is_true "$OCF_RESKEY_unique_clone_address" && ! ocf_is_true "$OCF_RESKEY_CRM_meta_globally_unique"; then ocf_exit_reason "unique_clone_address makes sense only with meta globally_unique set" exit $OCF_ERR_CONFIGURED fi if ocf_is_decimal "$OCF_RESKEY_arp_interval" && [ $OCF_RESKEY_arp_interval -gt 0 ]; then : else ocf_exit_reason "Invalid OCF_RESKEY_arp_interval [$OCF_RESKEY_arp_interval]" exit $OCF_ERR_CONFIGURED fi if ocf_is_decimal "$OCF_RESKEY_arp_count" && [ $OCF_RESKEY_arp_count -gt 0 ]; then : else ocf_exit_reason "Invalid OCF_RESKEY_arp_count [$OCF_RESKEY_arp_count]" exit $OCF_ERR_CONFIGURED fi if [ -z "$OCF_RESKEY_preferred_lft" ]; then ocf_exit_reason "Empty value is invalid for OCF_RESKEY_preferred_lft" exit $OCF_ERR_CONFIGURED fi if [ -n "$IP_CIP" ]; then local valid=1 case $IP_CIP_HASH in sourceip|sourceip-sourceport|sourceip-sourceport-destport) ;; *) ocf_exit_reason "Invalid OCF_RESKEY_clusterip_hash [$IP_CIP_HASH]" exit $OCF_ERR_CONFIGURED ;; esac if ocf_is_true ${OCF_RESKEY_lvs_support}; then ocf_exit_reason "LVS and load sharing not advised to try" exit $OCF_ERR_CONFIGURED fi case $IF_MAC in [0-9a-zA-Z][13579bBdDfF][!0-9a-zA-Z][0-9a-zA-Z][0-9a-zA-Z][!0-9a-zA-Z][0-9a-zA-Z][0-9a-zA-Z][!0-9a-zA-Z][0-9a-zA-Z][0-9a-zA-Z][!0-9a-zA-Z][0-9a-zA-Z][0-9a-zA-Z][!0-9a-zA-Z][0-9a-zA-Z][0-9a-zA-Z]) ;; *) valid=0 ;; esac if [ $valid -eq 0 ]; then ocf_exit_reason "Invalid IF_MAC [$IF_MAC]" exit $OCF_ERR_CONFIGURED fi fi } if ocf_is_true "$OCF_RESKEY_unique_clone_address"; then prefix=`echo $OCF_RESKEY_ip | awk -F. '{print $1"."$2"."$3}'` suffix=`echo $OCF_RESKEY_ip | awk -F. '{print $4}'` suffix=`expr ${OCF_RESKEY_CRM_meta_clone:-0} + $suffix` OCF_RESKEY_ip="$prefix.$suffix" fi case $__OCF_ACTION in meta-data) meta_data ;; usage|help) ip_usage exit $OCF_SUCCESS ;; esac ip_validate case $__OCF_ACTION in start) ip_start ;; stop) ip_stop ;; status) ip_status=`ip_served` if [ $ip_status = "ok" ]; then echo "running" exit $OCF_SUCCESS else echo "stopped" exit $OCF_NOT_RUNNING fi ;; monitor) ip_monitor ;; validate-all) ;; *) ip_usage exit $OCF_ERR_UNIMPLEMENTED ;; esac # vi:sw=4:ts=8: diff --git a/heartbeat/IPsrcaddr b/heartbeat/IPsrcaddr index c732ce8df..1c87d5b7f 100755 --- a/heartbeat/IPsrcaddr +++ b/heartbeat/IPsrcaddr @@ -1,631 +1,685 @@ #!/bin/sh # # Description: IPsrcaddr - Preferred source(/dest) address modification # # Author: John Sutton # Support: users@clusterlabs.org # License: GNU General Public License (GPL) # Copyright: SCL Internet # # Based on the IPaddr script. # # This script manages the preferred source address associated with # packets which originate on the localhost and are routed through the # matching route. By default, i.e. without the use of this script or # similar, these packets will carry the IP of the primary i.e. the # non-aliased interface. This can be a nuisance if you need to ensure # that such packets carry the same IP irrespective of which host in # a redundant cluster they actually originate from. # # It can add a preferred source address, or remove one. # # usage: IPsrcaddr {start|stop|status|monitor|validate-all|meta-data} # # The "start" arg adds a preferred source address. # # Surprisingly, the "stop" arg removes it. :-) # # NOTES: # # 1) There must be one and not more than 1 matching route! Mainly because # I can't see why you should have more than one. And if there is more # than one, we would have to box clever to find out which one is to be # modified, or we would have to pass its identity as an argument. # # 2) The script depends on Alexey Kuznetsov's ip utility from the # iproute aka iproute2 package. # # 3) No checking is done to see if the passed in IP address can # reasonably be associated with the interface on which the default # route exists. So unless you want to deliberately spoof your source IP, # check it! Normally, I would expect that your haresources looks # something like: # # nodename ip1 ip2 ... ipN IPsrcaddr::ipX # # where ipX is one of the ip1 to ipN. # # OCF parameters are as below: # OCF_RESKEY_ipaddress ####################################################################### # Initialization: : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs . ${OCF_FUNCTIONS_DIR}/findif.sh # Defaults OCF_RESKEY_ipaddress_default="" OCF_RESKEY_cidr_netmask_default="" OCF_RESKEY_destination_default="0.0.0.0/0" OCF_RESKEY_proto_default="" OCF_RESKEY_metric_default="" +OCF_RESKEY_pref_default="" OCF_RESKEY_table_default="" : ${OCF_RESKEY_ipaddress=${OCF_RESKEY_ipaddress_default}} : ${OCF_RESKEY_cidr_netmask=${OCF_RESKEY_cidr_netmask_default}} : ${OCF_RESKEY_destination=${OCF_RESKEY_destination_default}} : ${OCF_RESKEY_proto=${OCF_RESKEY_proto_default}} : ${OCF_RESKEY_metric=${OCF_RESKEY_metric_default}} +: ${OCF_RESKEY_pref=${OCF_RESKEY_pref_default}} : ${OCF_RESKEY_table=${OCF_RESKEY_table_default}} ####################################################################### [ -z "$OCF_RESKEY_proto" ] && PROTO="" || PROTO="proto $OCF_RESKEY_proto" [ -z "$OCF_RESKEY_table" ] && TABLE="" || TABLE="table $OCF_RESKEY_table" USAGE="usage: $0 {start|stop|status|monitor|validate-all|meta-data}"; - CMDSHOW="$IP2UTIL route show $TABLE to exact $OCF_RESKEY_destination" -CMDCHANGE="$IP2UTIL route change to " +echo "$OCF_RESKEY_ipaddress" | grep -q ":" && FAMILY="inet6" || FAMILY="inet" +[ "$FAMILY" = "inet6" ] && [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] && OCF_RESKEY_destination="::/0" -if [ "$OCF_RESKEY_destination" != "0.0.0.0/0" ]; then + CMDSHOW="$IP2UTIL -f $FAMILY route show $TABLE to exact $OCF_RESKEY_destination" +CMDCHANGE="$IP2UTIL -f $FAMILY route change to " + +if [ "$OCF_RESKEY_destination" != "0.0.0.0/0" ] && [ "$OCF_RESKEY_destination" != "::/0" ]; then CMDSHOW="$CMDSHOW src $OCF_RESKEY_ipaddress" fi if [ "$OCF_RESKEY_table" = "local" ]; then TABLE="$TABLE local" fi SYSTYPE="`uname -s`" usage() { echo $USAGE >&2 } meta_data() { cat < 1.0 Resource script for IPsrcaddr. It manages the preferred source address modification. Note: DHCP should not be enabled for the interface serving the preferred source address. Enabling DHCP may result in unexpected behavior, such as the automatic addition of duplicate or conflicting routes. This may cause the IPsrcaddr resource to fail, or it may produce undesired behavior while the resource continues to run. Manages the preferred source address for outgoing IP packets The IP address. IP address The netmask for the interface in CIDR format. (ie, 24), or in dotted quad notation 255.255.255.0). Netmask The destination IP/subnet for the route (default: $OCF_RESKEY_destination_default) Destination IP/subnet Proto to match when finding network. E.g. "kernel". Proto Metric. Only needed if incorrect metric value is used. Metric + + +IPv6 route preference (low, medium or high). Only needed if incorrect pref value is used. + +IPv6 route preference. + + + Table to modify and use for interface lookup. E.g. "local". The table has to have a route matching the "destination" parameter. This can be used for policy based routing. See man ip-rule(8). Table END } errorexit() { ocf_exit_reason "$*" exit $OCF_ERR_GENERIC } # # We can distinguish 3 cases: no preferred source address, a # preferred source address exists which matches that specified, and one # exists but doesn't match that specified. srca_read() returns 1,0,2 # respectively. # # The output of route show is something along the lines of: # # default via X.X.X.X dev eth1 src Y.Y.Y.Y # # where the src clause "src Y.Y.Y.Y" may or may not be present WS="[[:blank:]]" -OCTET="[0-9]\{1,3\}" -IPADDR="\($OCTET\.\)\{3\}$OCTET" +case "$FAMILY" in + inet) + GROUP="[0-9]\{1,3\}" + IPADDR="\($GROUP\.\)\{3\}$GROUP" + ;; + inet6) + GROUP="[0-9a-f]\{0,4\}" + IPADDR="\($GROUP\:\)\{0,\}$GROUP" + ;; +esac SRCCLAUSE="src$WS$WS*\($IPADDR\)" -MATCHROUTE="\(.*${WS}\)\($SRCCLAUSE\)\($WS.*\|$\)" -METRICCLAUSE=".*\(metric$WS[^ ]\+\)" +MATCHROUTE="\(.*${WS}\)proto [^ ]\+\(.*${WS}\)\($SRCCLAUSE\)\($WS.*\|$\)" +METRICCLAUSE=".*\(metric$WS[^ ]\+\).*" PROTOCLAUSE=".*\(proto$WS[^ ]\+\).*" +PREFCLAUSE=".*\(pref$WS[^ ]\+\).*" FINDIF=findif # findif needs that to be set export OCF_RESKEY_ip=$OCF_RESKEY_ipaddress srca_read() { # Capture matching route - doublequotes prevent word splitting... ROUTE="`$CMDSHOW dev $INTERFACE 2> /dev/null`" || errorexit "command '$CMDSHOW' failed" # ... so we can make sure there is only 1 matching route [ 1 -eq `echo "$ROUTE" | wc -l` ] || \ errorexit "more than 1 matching route exists" # But there might still be no matching route - [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] && [ -z "$ROUTE" ] && \ + ([ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] || [ "$OCF_RESKEY_destination" = "::/0" ]) && [ -z "$ROUTE" ] && \ ! ocf_is_probe && [ "$__OCF_ACTION" != stop ] && errorexit "no matching route exists" # Sed out the source ip address if it exists - SRCIP=`echo $ROUTE | sed -n "s/$MATCHROUTE/\3/p"` + SRCIP=`echo $ROUTE | sed -n "s/$MATCHROUTE/\4/p"` # and what remains after stripping out the source ip address clause - ROUTE_WO_SRC=`echo $ROUTE | sed "s/$MATCHROUTE/\1\5/"` + ROUTE_WO_SRC=`echo $ROUTE | sed "s/$MATCHROUTE/\1\2\6/"` # using "src " only returns output if there's a match - if [ "$OCF_RESKEY_destination" != "0.0.0.0/0" ]; then + if [ "$OCF_RESKEY_destination" != "0.0.0.0/0" ] && [ "$OCF_RESKEY_destination" != "::/0" ]; then [ -z "$ROUTE" ] && return 1 || return 0 fi [ -z "$SRCIP" ] && return 1 [ $SRCIP = $1 ] && return 0 [ "$__OCF_ACTION" = "monitor" ] || [ "$__OCF_ACTION" = "status" ] && [ "${ROUTE%% *}" = "default" ] && return 1 return 2 } # # Add (or change if it already exists) the preferred source address # The exit code should conform to LSB exit codes. # srca_start() { srca_read $1 rc=$? if [ $rc = 0 ]; then rc=$OCF_SUCCESS ocf_log info "The ip route has been already set.($NETWORK, $INTERFACE, $ROUTE_WO_SRC)" else - $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC || \ - errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC' failed" + # NetworkManager manages routes with proto static/kernel + [ -z "$OCF_RESKEY_proto" ] && echo "$PROTO" | grep -q "proto \(kernel\|static\)" && PROTO="proto keepalived" - if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then - $CMDCHANGE $ROUTE_WO_SRC src $1 || \ - errorexit "command '$CMDCHANGE $ROUTE_WO_SRC src $1' failed" + $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC $PREF || \ + errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC $PREF' failed" + + if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] || [ "$OCF_RESKEY_destination" = "::/0" ]; then + $CMDCHANGE $ROUTE_WO_SRC $PROTO src $1 || \ + errorexit "command '$CMDCHANGE $ROUTE_WO_SRC $PROTO src $1' failed" fi rc=$? fi return $rc } # # Remove (if it exists) the preferred source address. # If one exists but it's not the same as the one specified, that's # an error. Maybe that's the wrong behaviour because if this fails # then when IPaddr releases the associated interface (if there is one) # your matching route will also get dropped ;-( # The exit code should conform to LSB exit codes. # srca_stop() { srca_read $1 rc=$? if [ $rc = 1 ]; then # We do not have a preferred source address for now ocf_log info "No preferred source address defined, nothing to stop" exit $OCF_SUCCESS fi [ $rc = 2 ] && errorexit "The address you specified to stop does not match the preferred source address" if [ -z "$TABLE" ] || [ "${TABLE#table }" = "main" ]; then SCOPE="link" else SCOPE="host" fi PRIMARY_IP="$($IP2UTIL -4 -o addr show dev $INTERFACE primary | awk '{split($4,a,"/");print a[1]}')" - OPTS="proto kernel scope $SCOPE src $PRIMARY_IP" + OPTS="proto kernel scope $SCOPE" + [ "$FAMILY" = "inet" ] && OPTS="$OPTS src $PRIMARY_IP" - $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC || \ - errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC' failed" + $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC $PREF || \ + errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC $PREF' failed" - if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then - $CMDCHANGE $ROUTE_WO_SRC src $PRIMARY_IP || \ - errorexit "command '$CMDCHANGE $ROUTE_WO_SRC src $PRIMARY_IP' failed" + if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] || [ "$OCF_RESKEY_destination" = "::/0" ]; then + $CMDCHANGE $ROUTE_WO_SRC proto static || \ + errorexit "command '$CMDCHANGE $ROUTE_WO_SRC proto static' failed" fi return $? } srca_status() { srca_read $1 case $? in 0) echo "OK" return $OCF_SUCCESS;; 1) echo "No preferred source address defined" return $OCF_NOT_RUNNING;; 2) echo "Preferred source address has incorrect value" return $OCF_ERR_GENERIC;; esac } # A not reliable IP address checking function, which only picks up those _obvious_ violations... # # It accepts IPv4 address in dotted quad notation, for example "192.168.1.1" # # 100% confidence whenever it reports "negative", # but may get false "positive" answer. # CheckIP() { ip="$1" case $ip in *[!0-9.]*) #got invalid char false;; - .*|*.) #begin or end by ".", which is invalid + .*|*.) #begin or end with ".", which is invalid false;; *..*) #consecutive ".", which is invalid false;; *.*.*.*.*) #four decimal dots, which is too many false;; *.*.*.*) #exactly three decimal dots, candidate, evaluate each field local IFS=. set -- $ip if ( [ $1 -le 254 ] && [ $2 -le 254 ] && [ $3 -le 254 ] && [ $4 -le 254 ] ) then if [ $1 -eq 127 ]; then ocf_exit_reason "IP address [$ip] is a loopback address, thus can not be preferred source address" exit $OCF_ERR_CONFIGURED fi else true fi ;; *) #less than three decimal dots false;; esac return $? # This return is unnecessary, this comment too :) } +CheckIP6() { + ip="$1" + case $ip in + *[!0-9a-f:]*) #got invalid char + false;; + *:::*) # more than 2 consecutive ":", which is invalid + false;; + *::*::*) # more than 1 "::", which is invalid + false;; + esac +} + # # Find out which interface or alias serves the given IP address # The argument is an IP address, and its output # is an (aliased) interface name (e.g., "eth0" and "eth0:0"). # find_interface_solaris() { $IFCONFIG $IFCONFIG_A_OPT | $AWK '{if ($0 ~ /.*: / && NR > 1) {print "\n"$0} else {print}}' | while read ifname linkstuff do : ifname = $ifname read inet addr junk : inet = $inet addr = $addr while read line && [ "X$line" != "X" ] do : Nothing done # This doesn't look right for a box with multiple NICs. # It looks like it always selects the first interface on # a machine. Yet, we appear to use the results for this case too... ifname=`echo "$ifname" | sed s'%:*$%%'` case $addr in addr:$BASEIP) echo $ifname; return $OCF_SUCCESS;; $BASEIP) echo $ifname; return $OCF_SUCCESS;; esac done return $OCF_ERR_GENERIC } # # Find out which interface or alias serves the given IP address # The argument is an IP address, and its output # is an (aliased) interface name (e.g., "eth0" and "eth0:0"). # find_interface_generic() { - - local iface=`$IP2UTIL -o -f inet addr show | grep "\ $BASEIP" \ + local iface=`$IP2UTIL -o -f $FAMILY addr show | grep "\ $BASEIP" \ | cut -d ' ' -f2 | grep -v '^ipsec[0-9][0-9]*$'` if [ -z "$iface" ]; then return $OCF_ERR_GENERIC else echo $iface return $OCF_SUCCESS fi } # # Find out which interface or alias serves the given IP address # The argument is an IP address, and its output # is an (aliased) interface name (e.g., "eth0" and "eth0:0"). # find_interface() { case "$SYSTYPE" in SunOS) IF=`find_interface_solaris $BASEIP` ;; *) IF=`find_interface_generic $BASEIP` ;; esac echo $IF return $OCF_SUCCESS; } ip_status() { BASEIP="$1" case "$SYSTYPE" in Darwin) # Treat Darwin the same as the other BSD variants (matched as *BSD) SYSTYPE="${SYSTYPE}BSD" ;; *) ;; esac case "$SYSTYPE" in *BSD) $IFCONFIG $IFCONFIG_A_OPT | grep "inet.*[: ]$BASEIP " >/dev/null 2>&1 if [ $? = 0 ]; then return $OCF_SUCCESS else return $OCF_NOT_RUNNING fi;; Linux|SunOS) IF=`find_interface "$BASEIP"` if [ -z "$IF" ]; then return $OCF_NOT_RUNNING fi case $IF in lo*) ocf_exit_reason "IP address [$BASEIP] is served by loopback, thus can not be preferred source address" exit $OCF_ERR_CONFIGURED ;; *)return $OCF_SUCCESS;; esac ;; *) if [ -z "$IF" ]; then return $OCF_NOT_RUNNING else return $OCF_SUCCESS fi;; esac } srca_validate_all() { if [ -z "$OCF_RESKEY_ipaddress" ]; then # usage ocf_exit_reason "Please set OCF_RESKEY_ipaddress to the preferred source IP address!" return $OCF_ERR_CONFIGURED fi if ! echo "$OCF_RESKEY_destination" | grep -q "/"; then return $OCF_ERR_CONFIGURED fi if ! [ "x$SYSTYPE" = "xLinux" ]; then # checks after this point are only relevant for linux. return $OCF_SUCCESS fi check_binary $AWK case "$SYSTYPE" in *BSD|SunOS) check_binary $IFCONFIG ;; esac # The IP address should be in good shape if CheckIP "$ipaddress"; then - : + : + elif CheckIP6 "$ipaddress"; then + : else ocf_exit_reason "Invalid IP address [$ipaddress]" return $OCF_ERR_CONFIGURED fi if ocf_is_probe; then return $OCF_SUCCESS fi # We should serve this IP address of course if [ "$OCF_CHECK_LEVEL" -eq 10 ]; then if ip_status "$ipaddress"; then : else ocf_exit_reason "We are not serving [$ipaddress], hence can not make it a preferred source address" return $OCF_ERR_INSTALLED fi fi return $OCF_SUCCESS } if ( [ $# -ne 1 ] ) then usage exit $OCF_ERR_ARGS fi # These operations do not require the OCF instance parameters to be set case $1 in meta-data) meta_data exit $OCF_SUCCESS ;; usage) usage exit $OCF_SUCCESS ;; *) ;; esac ipaddress="$OCF_RESKEY_ipaddress" [ "$__OCF_ACTION" != "validate-all" ] && OCF_CHECK_LEVEL=10 srca_validate_all rc=$? if [ $rc -ne $OCF_SUCCESS ]; then case $1 in # if we can't validate the configuration during a stop, that # means the resources isn't configured correctly. There's no way # to actually stop the resource in this situation because there's # no way it could have even started. Return success here # to indicate that the resource is not running, otherwise the # stop action will fail causing the node to be fenced just because # of a mis configuration. stop) exit $OCF_SUCCESS;; *) exit $rc;; esac fi findif_out=`$FINDIF` rc=$? [ $rc -ne 0 ] && { ocf_exit_reason "[$FINDIF] failed" exit $rc } INTERFACE=`echo $findif_out | awk '{print $1}'` -LISTROUTE=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress` +case "$FAMILY" in + inet) + LISTCMD="$IP2UTIL -f $FAMILY route list dev $INTERFACE scope link $PROTO match $ipaddress" + ;; + inet6) + LISTCMD="$IP2UTIL -f $FAMILY route list dev $INTERFACE $PROTO match $ipaddress" + ;; +esac +LISTROUTE=`$LISTCMD` + [ -z "$PROTO" ] && PROTO=`echo $LISTROUTE | sed -n "s/$PROTOCLAUSE/\1/p"` if [ -n "$OCF_RESKEY_metric" ]; then METRIC="metric $OCF_RESKEY_metric" -elif [ -z "$TABLE" ] || [ "${TABLE#table }" = "main" ]; then +elif [ -z "$TABLE" ] || [ "${TABLE#table }" = "main" ] || [ "$FAMILY" = "inet6" ]; then METRIC=`echo $LISTROUTE | sed -n "s/$METRICCLAUSE/\1/p"` else METRIC="" fi -if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then +if [ "$FAMILY" = "inet6" ]; then + if [ -z "$OCF_RESKEY_pref" ]; then + PREF=`echo $LISTROUTE | sed -n "s/$PREFCLAUSE/\1/p"` + else + PREF="pref $OCF_RESKEY_pref" + fi +fi +if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] || [ "$OCF_RESKEY_destination" = "::/0" ] ;then NETWORK=`echo $LISTROUTE | grep -m 1 -o '^[^ ]*'` if [ -z "$NETWORK" ]; then - err_str="command '$IP2UTIL route list dev $INTERFACE scope link $PROTO" - err_str="$err_str match $ipaddress' failed to find a matching route" + err_str="command '$LISTCMD' failed to find a matching route" if [ "$__OCF_ACTION" = "start" ]; then ocf_exit_reason "$err_str" exit $OCF_ERR_ARGS elif ! ocf_is_probe; then ocf_log warn "$err_str" else ocf_log debug "$err_str" fi fi else NETWORK="$OCF_RESKEY_destination" fi case $1 in start) srca_start $ipaddress ;; stop) srca_stop $ipaddress ;; status) srca_status $ipaddress ;; monitor) srca_status $ipaddress ;; validate-all) srca_validate_all ;; *) usage exit $OCF_ERR_UNIMPLEMENTED ;; esac exit $? # # Version 0.3 2002/11/04 17:00:00 John Sutton # Name changed from IPsrcroute to IPsrcaddr and now reports errors # using ha_log rather than on stderr. # # Version 0.2 2002/11/02 17:00:00 John Sutton # Changed status output to "OK" to satisfy ResourceManager's # we_own_resource() function. # # Version 0.1 2002/11/01 17:00:00 John Sutton # First effort but does the job? # diff --git a/heartbeat/findif.sh b/heartbeat/findif.sh index 13484f827..ca5d1a5c1 100644 --- a/heartbeat/findif.sh +++ b/heartbeat/findif.sh @@ -1,260 +1,273 @@ #!/bin/sh ipcheck_ipv4() { local r1_to_255="([1-9][0-9]?|1[0-9][0-9]|2[0-4][0-9]|25[0-5])" local r0_to_255="([0-9][0-9]?|1[0-9][0-9]|2[0-4][0-9]|25[0-5])" local r_ipv4="^$r1_to_255\.$r0_to_255\.$r0_to_255\.$r0_to_255$" echo "$1" | grep -q -Ee "$r_ipv4" } ipcheck_ipv6() { ! echo "$1" | grep -qs "[^0-9:a-fA-F]" } ifcheck() { local ifname="$1" $IP2UTIL link show dev $ifname 2>&1 } prefixcheck() { local prefix=$1 local prefix_length=${#prefix} local prefix_check=$2 if [ $prefix_length -gt 3 -o $prefix_length -eq 0 ] ; then return 1 fi echo "$prefix" | grep -qs "[^0-9]" if [ $? = 0 ] ; then return 1 fi if [ $prefix -lt 1 -o $prefix -gt $prefix_check ] ; then return 1 fi return 0 } getloopbackinfo() { local line netinfo ip -o -f inet route list match $OCF_RESKEY_ip table local scope host | (while read line; do netinfo=`echo $line | awk '{print $2}'` case $netinfo in */*) set -- $line break ;; esac done echo $line) } # previous versions of the IPaddr2 resource agent used to accept a netmask # in dotted quad notation (and convert to cidr notation implicitly; possibly # with warnings nobody ever noticed) # We can do so here as well. maybe_convert_dotted_quad_to_cidr() { # does this even look like a dotted quad notation? case $netmask in # invalid if it contains other than digits and dots # invalid if it contains adjacent dots, # or starts or ends with a dot # or more than three dots # or more than three digits in a row *[!0-9.]* | *..* | *.*.*.*.* | .* | *. | *[0-9][0-9][0-9][0-9]* ) return ;; # do we have three dots? # component range check on <= 255 is done below *.*.*.*) : ;; *) return ;; esac local IFS=. set -- $netmask [ $# = 4 ] || return; local b m=0 mask; for b ; do [ $b -le 255 ] || return; m=$(( (m << 8) + b )); done; case $m in # for i in `seq 32 -1 0`; do printf "%10u) netmask=$i ;;\n" $(( ((1 << i)-1) << (32 - i) )); done 4294967295) mask=32 ;; 4294967294) mask=31 ;; 4294967292) mask=30 ;; 4294967288) mask=29 ;; 4294967280) mask=28 ;; 4294967264) mask=27 ;; 4294967232) mask=26 ;; 4294967168) mask=25 ;; 4294967040) mask=24 ;; 4294966784) mask=23 ;; 4294966272) mask=22 ;; 4294965248) mask=21 ;; 4294963200) mask=20 ;; 4294959104) mask=19 ;; 4294950912) mask=18 ;; 4294934528) mask=17 ;; 4294901760) mask=16 ;; 4294836224) mask=15 ;; 4294705152) mask=14 ;; 4294443008) mask=13 ;; 4293918720) mask=12 ;; 4292870144) mask=11 ;; 4290772992) mask=10 ;; 4286578688) mask=9 ;; 4278190080) mask=8 ;; 4261412864) mask=7 ;; 4227858432) mask=6 ;; 4160749568) mask=5 ;; 4026531840) mask=4 ;; 3758096384) mask=3 ;; 3221225472) mask=2 ;; 2147483648) mask=1 ;; 0) mask=0 ;; *) ocf_log err "Bogus netmask: $netmask" ; return ;; esac ocf_log warn "Please convert dotted quad netmask $netmask to CIDR notation $mask!" netmask=$mask } findif_check_params() { local family="$1" local match="$OCF_RESKEY_ip" local nic="$OCF_RESKEY_nic" # netmask NOT local, see maybe_convert_dotted_quad_to_cidr netmask="$OCF_RESKEY_cidr_netmask" local brdcast="$OCF_RESKEY_broadcast" local errmsg maybe_convert_dotted_quad_to_cidr # Do a sanity check only on start and validate-all # to avoid returning OCF_ERR_CONFIGURED from the monitor operation. case $__OCF_ACTION in start|validate-all) true;; *) return $OCF_SUCCESS;; esac if [ -n "$nic" ] ; then errmsg=`ifcheck $nic` if [ $? -ne 0 ] ; then ocf_log err "Invalid interface name [$nic]: $errmsg" return $OCF_ERR_CONFIGURED fi fi if [ "$family" = "inet6" ] ; then ipcheck_ipv6 $match if [ $? = 1 ] ; then ocf_log err "IP address [$match] not valid." return $OCF_ERR_CONFIGURED fi if [ -z "$nic" ] ; then echo $match | grep -qis '^fe80::' if [ $? = 0 ] ; then ocf_log err "'nic' parameter is mandatory for a link local address [$match]." return $OCF_ERR_CONFIGURED fi fi if [ -n "$netmask" ] ; then prefixcheck $netmask 128 if [ $? = 1 ] ; then ocf_log err "Invalid netmask specification [$netmask]." return $OCF_ERR_CONFIGURED fi fi else # family = inet ipcheck_ipv4 $match if [ $? = 1 ] ; then ocf_log err "IP address [$match] not valid." return $OCF_ERR_CONFIGURED fi if [ -n "$netmask" ] ; then prefixcheck $netmask 32 if [ $? = 1 ] ; then ocf_log err "Invalid netmask specification [$netmask]." return $OCF_ERR_CONFIGURED fi fi if [ -n "$brdcast" ] ; then ipcheck_ipv4 $brdcast if [ $? = 1 ] ; then if [ "$brdcast" != "+" -a "$brdcast" != "-" ]; then ocf_log err "Invalid broadcast address [$brdcast]." return $OCF_ERR_CONFIGURED fi fi fi fi return $OCF_SUCCESS } findif() { local match="$OCF_RESKEY_ip" local family + local proto local scope local nic="$OCF_RESKEY_nic" local netmask="$OCF_RESKEY_cidr_netmask" local brdcast="$OCF_RESKEY_broadcast" + local metric + local routematch echo $match | grep -qs ":" if [ $? = 0 ] ; then family="inet6" else family="inet" scope="scope link" fi findif_check_params $family || return $? if [ -n "$netmask" ]; then match=$match/$netmask fi if [ -n "$nic" ] ; then # NIC supports more than two. - set -- $(ip -o -f $family route list match $match $scope | grep "dev $nic " | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr) + routematch=$(ip -o -f $family route list match $match $proto $scope | grep "dev $nic " | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr) else - set -- $(ip -o -f $family route list match $match $scope | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr) + routematch=$(ip -o -f $family route list match $match $proto $scope | sed -e 's,^\([0-9.]\+\) ,\1/32 ,;s,^\([0-9a-f:]\+\) ,\1/128 ,' | sort -t/ -k2,2nr) fi + if [ "$family" = "inet6" ]; then + routematch=$(echo "$routematch" | grep -v "^default") + fi + + if [ $(echo "$routematch" | wc -l) -gt 1 ]; then + ocf_exit_reason "More than 1 routes match $match. Unable to decide which route to use." + return $OCF_ERR_GENERIC + fi + set -- $routematch if [ $# = 0 ] ; then case $OCF_RESKEY_ip in 127.*) set -- `getloopbackinfo` shift;; esac fi if [ -z "$nic" -o -z "$netmask" ] ; then if [ $# = 0 ] ; then ocf_log err "Unable to find nic or netmask." return $OCF_ERR_GENERIC fi case $1 in */*) : OK ;; # "ip route" doesnt show netmask for IPv6 /128 *:*:*) : OK ;; *) ocf_log err "Unable to find cidr_netmask." return $OCF_ERR_GENERIC ;; esac fi [ -z "$nic" ] && nic=$3 [ -z "$netmask" ] && netmask=${1#*/} if [ $family = "inet" ] ; then if [ -z "$brdcast" ] ; then if [ -n "$7" ] ; then set -- `ip -o -f $family addr show | grep $7` [ "$5" = brd ] && brdcast=$6 fi fi else if [ -z "$OCF_RESKEY_nic" ] && [ -z "$OCF_RESKEY_cidr_netmask" ] && [ "$netmask" != "${1#*/}" ] ; then ocf_log err "Unable to find nic, or netmask mismatch." return $OCF_ERR_GENERIC fi fi - echo "$nic netmask $netmask broadcast $brdcast" + metric=$(echo "$@" | sed "s/.*metric[[:blank:]]\([^ ]\+\).*/\1/") + echo "$nic netmask $netmask broadcast $brdcast metric $metric" return $OCF_SUCCESS }