scripts/ovirt-config-networking

   1 #!/bin/bash
   2 #
   3 # Iterates over the list of network devices on the node and prompts the user
   4 # to configure each.
   5
   6 . /etc/init.d/ovirt-functions
   7
   8 ME=$(basename "$0")
   9 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
  10 die() { warn "$*"; exit 1; }
  11
  12 WORKDIR=$(mktemp -d) || exit 1
  13
  14 # Remove $WORKDIR upon interrupt (and HUP, PIPE, TERM) and upon normal
  15 # termination, being careful not to change the exit status.
  16 trap '__st=$?; rm -rf "$WORKDIR"; stop_log; exit $__st' 0
  17 trap 'exit $?' 1 2 13 15
  18
  19 IFCONFIG_FILE_ROOT="/files/etc/sysconfig/network-scripts/ifcfg"
  20 NTPCONF_FILE_ROOT="/files/etc/ntp"
  21 NTP_CONFIG_FILE="/etc/ntp.conf"
  22 NTPSERVERS=""
  23 CONFIGURED_NIC=""
  24 VLAN_ID=""
  25 VL_ROOT=""
  26
  27 # if local storage is not configured, then exit the script
  28 if ! is_local_storage_configured; then
  29     printf "Local storage must be configured prior to configuring the management interface.\n\n"
  30     exit 99
  31 fi
  32
  33 # Checks that a network interface was already configured.
  34 function has_configured_interface
  35 {
  36     local show_message=${1-false}
  37
  38     if [[ -n "${CONFIGURED_NIC}" ]]; then
  39         return 0
  40     else
  41         if $show_message; then
  42             printf "\nYou must configure a network interface first.\n\n"
  43         fi
  44         return 1
  45     fi
  46 }
  47
  48 # Configures vlan for the node.
  49 # $1 - the nic
  50 # $2 - the network bridge name
  51 # $3 - the vlan id
  52 # $4 - the VL_ROOT variable
  53 # $5 - the VL_CONFIG variable
  54 # $6 - the IF_ROOT value
  55 # $7 - the vlan config filename variable
  56 # $8 - the NIC config filename
  57 function setup_vlan
  58 {
  59     local nic=$1
  60     local bridge=$2
  61     local vlan_id=$3
  62     local vlroot=$4
  63     local vlconfig=$5
  64     local ifroot=$6
  65     local vlfilename=$7
  66     local iffilename=$8
  67
  68     eval $vlroot="${ifroot}.${vlan_id}"
  69     eval $vlconfig=\"rm \$${vlroot}\\nset \$${vlroot}/DEVICE ${nic}.${vlan_id}\"
  70     eval $vlconfig=\"\$${vlconfig}\\nset \$${vlroot}/BRIDGE ${bridge}\"
  71     eval $vlconfig=\"\$${vlconfig}\\nset \$${vlroot}/VLAN yes\"
  72     eval $vlfilename="${iffilename}.${vlan_id}"
  73 }
  74
  75 function configure_interface
  76 {
  77     local NIC=$1
  78     local AUTO=$2
  79     if [[   "$AUTO" == "AUTO"    &&
  80          -n "$OVIRT_IP_ADDRESS" ]]; then
  81         IPADDR=$OVIRT_IP_ADDRESS
  82         NETMASK=$OVIRT_IP_NETMASK
  83         GATEWAY=$OVIRT_IP_GATEWAY
  84         PREFIX=$OVIRT_IP_PREFIX
  85     fi
  86
  87     if has_configured_interface; then
  88         printf "This will delete the current configuration for ${CONFIGURED_NIC}.\n"
  89         if ask_yes_or_no "Do you wish to continue ([Y]es/[N]o)?"; then
  90             printf "\nDeleting existing network configuration...\n"
  91             cp -a  /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/backup.lo
  92             remove_config /etc/sysconfig/network-scripts/ifcfg-*
  93             rm -rf /etc/sysconfig/network-scripts/ifcfg-*
  94             cp -a  /etc/sysconfig/network-scripts/backup.lo /etc/sysconfig/network-scripts/ifcfg-lo
  95         else
  96             printf "\nAborting...\n"
  97             return
  98         fi
  99     fi
 100
 101     rm -rf $WORKDIR/*
 102     CONFIGURED_NIC=$NIC
 103
 104     local BRIDGE=br$NIC
 105     local IF_FILENAME="$WORKDIR/augtool-$NIC"
 106     local BR_FILENAME="$WORKDIR/augtool-$BRIDGE"
 107
 108     printf "\nConfigure $BRIDGE for use by $NIC..\n\n"
 109
 110     local IF_ROOT="$IFCONFIG_FILE_ROOT-$NIC"
 111     local IF_CONFIG="rm $IF_ROOT\nset $IF_ROOT/DEVICE $NIC"
 112
 113     local BR_ROOT="$IFCONFIG_FILE_ROOT-$BRIDGE"
 114     local BR_CONFIG="rm $BR_ROOT\nset $BR_ROOT/DEVICE $BRIDGE"
 115
 116     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/TYPE Bridge"
 117     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/PEERNTP yes"
 118     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/DELAY 0"
 119     local BR_CONFIG_BASE=$BR_CONFIG
 120
 121     if [ -z "$AUTO" ]; then
 122         while true; do
 123             local VL_CONFIG=""
 124
 125             printf "\n"
 126             LINK=`ethtool $NIC| grep "Link detected"`:u
 127             [ -z "$LINK" ] && return
 128             if echo $LINK | grep -q "Link detected: yes" ; then
 129                 NICSTATUS="ACTIVE"
 130             else
 131                 NICSTATUS="INACTIVE"
 132             fi
 133             echo "NIC is: $NICSTATUS"
 134
 135             if ask_yes_or_no "Help identify ${NIC} by blinking lights for 10 seconds ([Y]es/[N]o)?"; then
 136                 ethtool --identify $NIC 10
 137             fi
 138
 139             ask_yes_or_no "Include VLAN support ([Y]es/[N]o/[A]bort)? " true true
 140             case $? in
 141                 0)
 142                     while true; do
 143                         read -ep "What is the VLAN ID for this device (a=abort) "
 144                         case $REPLY in
 145                             A|a) CONFIGURED_NIC=""; return;;
 146                             *)
 147                                 if [[ -n "$REPLY" ]] && [[ "$REPLY" =~ "^[0-9]{1,}$" ]]; then
 148                                     VLAN_ID=$REPLY
 149                                     setup_vlan $NIC $BRIDGE $VLAN_ID VL_ROOT VL_CONFIG $IF_ROOT VL_FILENAME $IF_FILENAME
 150                                     break
 151                                 fi
 152                                 ;;
 153                         esac
 154                     done
 155                     ;;
 156                 1)  IF_CONFIG="${IF_CONFIG}\nset ${IF_ROOT}/BRIDGE ${BRIDGE}" ;;
 157                 2)
 158                     CONFIGURED_NIC=""
 159                     VLAN_ID=""
 160                     return;;
 161             esac
 162
 163             while true; do
 164                 read -ep "Enable IPv4 support ([S]tatic IP, [D]HCP, [N]o or [A]bort)? "
 165                 case $REPLY in
 166                     D|d)
 167                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/BOOTPROTO dhcp"
 168                         break
 169                         ;;
 170                     S|s)
 171                         printf "\n"
 172                         read -ep "IP Address: "; IPADDR=$REPLY
 173                         read -ep "   Netmask: "; NETMASK=$REPLY
 174                         read -ep "   Gateway: "; GATEWAY=$REPLY
 175
 176                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/BOOTPROTO none"
 177                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPADDR $IPADDR"
 178                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/NETMASK $NETMASK"
 179                         if [ -n "${GATEWAY}" ]; then
 180                             BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/GATEWAY $GATEWAY"
 181                         fi
 182                         break
 183                         ;;
 184                     A|a)
 185                         CONFIGURED_NIC=""
 186                         VLAN_ID=""
 187                         return
 188                         ;;
 189                 esac
 190             done
 191
 192             printf "\n"
 193
 194             while true; do
 195                 read -ep "Enable IPv6 support ([S]tatic, [D]HCPv6, A[u]to, [N]o or [A]bort)? "
 196                 case $REPLY in
 197                     S|s)
 198                         read -ep "IPv6 Address: "; IPADDR=$REPLY
 199                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 200                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IP6ADDR $IPADDR"
 201                         break
 202                         ;;
 203                     D|d)
 204                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 205                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6AUTCONF no"
 206                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6FORWARDING no"
 207                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/DHCPV6C yes"
 208                         break
 209                         ;;
 210                     U|u)
 211                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 212                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6FORWARDING no"
 213                         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6AUTOCONF yes"
 214                         break
 215                         ;;
 216                     A|a)
 217                         CONFIGURED_NIC=""
 218                         VLAN_ID=""
 219                         return
 220                         ;;
 221                 esac
 222             done
 223
 224             printf "\n"
 225             ask_yes_or_no "Is this correct ([Y]es/[N]o/[A]bort)?" true true
 226             case $? in
 227                 0)
 228                     IF_CONFIG="$IF_CONFIG\nset $IF_ROOT/ONBOOT yes"
 229                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/ONBOOT yes"
 230                     if [[ -n "$VLAN_ID" ]]; then
 231                         VL_CONFIG="$VL_CONFIG\nset $VL_ROOT/ONBOOT yes"
 232                     fi
 233                     printf "$IF_CONFIG\n" > $IF_FILENAME
 234                     printf "$BR_CONFIG\n" > $BR_FILENAME
 235                     if [[ -n "$VLAN_ID" ]]; then
 236                         printf "$VL_CONFIG\n" > $VL_FILENAME
 237                     fi
 238                     break
 239                     ;;
 240                 1)
 241                     BR_CONFIG=$BR_CONFIG_BASE
 242                     ;;
 243                 2)
 244                     CONFIGURED_NIC=""
 245                     VLAN_ID=""
 246                     return
 247                     ;;
 248             esac
 249         done
 250     else
 251         if [ -n "$OVIRT_IPV6" ]; then
 252             case "$OVIRT_IPV6" in
 253                 "auto")
 254                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 255                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6FORWARDING no"
 256                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6_AUTOCONF yes"
 257                     ;;
 258                 "dhcp")
 259                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 260                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6_AUTOCONF no"
 261                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6FORWARDING no"
 262                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/DHCPV6C yes"
 263                     ;;
 264                 *)
 265                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6INIT yes"
 266                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6ADDR $OVIRT_IPV6"
 267                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6_AUTOCONF no"
 268                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPV6FORWARDING no"
 269             esac
 270         fi
 271
 272         if [ -n "$OVIRT_VLAN" ]; then
 273             VLAN_ID=$OVIRT_VLAN
 274             setup_vlan $NIC $BRIDGE $VLAN_ID VL_ROOT VL_CONFIG $IF_ROOT VL_FILENAME $IF_FILENAME
 275         fi
 276
 277         if [ -z "$OVIRT_IP_ADDRESS" ]; then
 278             if [ -z "$VL_CONFIG" ]; then
 279                 IF_CONFIG="${IF_CONFIG}\nset ${IF_ROOT}/BRIDGE ${BRIDGE}"
 280             fi
 281             BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/BOOTPROTO dhcp"
 282         else
 283             if [ "$OVIRT_IP_ADDRESS" != "off" ]; then
 284                 if [ -z "$VL_CONFIG" ]; then
 285                     IF_CONFIG="${IF_CONFIG}\nset ${IF_ROOT}/BRIDGE ${BRIDGE}"
 286                 fi
 287                 BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/IPADDR $OVIRT_IP_ADDRESS"
 288                 if [ -n "$OVIRT_IP_NETMASK" ]; then
 289                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/NETMASK $OVIRT_IP_NETMASK"
 290                 fi
 291                 if [ -n "$OVIRT_IP_GATEWAY" ]; then
 292                     BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/GATEWAY $OVIRT_IP_GATEWAY"
 293                 fi
 294             fi
 295         fi
 296
 297         IF_CONFIG="$IF_CONFIG\nset $IF_ROOT/ONBOOT yes"
 298         BR_CONFIG="$BR_CONFIG\nset $BR_ROOT/ONBOOT yes"
 299         if [ -n "${VL_CONFIG}" ]; then
 300             VL_CONFIG="$VL_CONFIG\nset $VL_ROOT/ONBOOT yes"
 301         fi
 302
 303         printf "$IF_CONFIG\n" > $IF_FILENAME
 304         printf "$BR_CONFIG\n" > $BR_FILENAME
 305         if [ -n "$VL_CONFIG" ]; then
 306             printf "$VL_CONFIG\n" > $VL_FILENAME
 307         fi
 308     fi
 309 }
 310
 311 function configure_dns
 312 {
 313     local DNS=$1
 314     local AUTO=$2
 315     if [[   "$AUTO" == "AUTO"    &&
 316          -n "$OVIRT_DNS" ]]; then
 317         DNS=$OVIRT_DNS
 318     fi
 319
 320     local IF_FILENAME="$WORKDIR/augtool-br${CONFIGURED_NIC}"
 321     local IF_ROOT="$IFCONFIG_FILE_ROOT-br${CONFIGURED_NIC}"
 322     local IF_CONFIG=
 323
 324     if [ -z "$AUTO" ]; then
 325         if has_configured_interface true; then
 326             while true; do
 327                 for dns in first second; do
 328                     while true; do
 329                         printf "\n"
 330                         read -ep "Please enter the ${dns} DNS server (or ENTER to exit): "
 331                         if [[ -z "${REPLY}" ]]; then
 332                             if [[ -z "${DNS}" ]]; then
 333                                 printf "\nAborted...\n"
 334                                 return
 335                             else
 336                                 break
 337                             fi
 338                         fi
 339                         if is_valid_ipv4 $REPLY; then
 340                             if [[ -z "${DNS}" ]]; then
 341                                 DNS="${REPLY}"
 342                             elif [[ -n "${REPLY}" ]]; then
 343                                 DNS="${DNS}:${REPLY}"
 344                             fi
 345                             break
 346                         else
 347                             printf "${REPLY} is an invalid address.\n"
 348                         fi
 349                     done
 350                 done
 351
 352                 printf "\n"
 353                 ask_yes_or_no "Is this correct ([Y]es/[N]o/[A]bort)?" true true
 354                 case $? in
 355                     0) break ;;
 356                     1) DNS="";;
 357                     2) return ;;
 358                 esac
 359             done
 360         fi
 361     fi
 362
 363     if [ -n "$DNS" ]; then
 364         DNS1=$(echo "$DNS" | awk -F\: '{print $1}')
 365         DNS2=$(echo "$DNS" | awk -F\: '{print $2}')
 366
 367         test -n "$DNS1" && printf "set $IF_ROOT/DNS1 $DNS1\n" >> $IF_FILENAME
 368         test -n "$DNS2" && printf "set $IF_ROOT/DNS2 $DNS2\n" >> $IF_FILENAME
 369     fi
 370 }
 371
 372 function configure_ntp
 373 {
 374     local AUTO=$2
 375     if [[ "$AUTO" == "AUTO" && -n "$OVIRT_NTP" ]]; then
 376         NTPSERVERS=$OVIRT_NTP
 377     else
 378         NTPSERVERS=""
 379     fi
 380
 381     if [ -z "$AUTO" ]; then
 382         if has_configured_interface true; then
 383             while true; do
 384                 read -ep "Enter an NTP server (hit return when finished): "
 385
 386                 if [ -z "$REPLY" ]; then break; fi
 387
 388                 if is_valid_ipv4 $REPLY; then
 389                     NTPSERVERS="${NTPSERVERS}:${REPLY}"
 390                 else
 391                     printf "${REPLY} is an invalid address.\n"
 392                 fi
 393             done
 394         fi
 395     fi
 396 }
 397
 398 function save_ntp_configuration
 399 {
 400     local ntpconf="$WORKDIR/augtool-ntp"
 401     local ntproot="/files/etc/ntp.conf"
 402
 403     printf "\
 404 rm ${ntproot}\n\n
 405 set ${ntproot}/driftfile /var/lib/ntp/drift\n\
 406 set ${ntproot}/includefile /etc/ntp/crypto/pw\n\
 407 set ${ntproot}/keys /etc/ntp/keys\n\
 408 " > $ntpconf
 409
 410     if [ -n "$NTPSERVERS" ]; then
 411         offset=1
 412         SERVERS=$(echo $NTPSERVERS | awk 'BEGIN{FS=":"}{for (i=1; i<=NF; i++) print $i}')
 413         for server in $SERVERS; do
 414             printf "set /files/etc/ntp.conf/server[${offset}] ${server}\n" >> $ntpconf
 415             offset=$(echo "$offset+1" | bc)
 416         done
 417     fi
 418 }
 419
 420 function setup_menu
 421 {
 422     NICS=""
 423     udi_list=$(hal-find-by-capability --capability net.80203)
 424     if [ -n "$udi_list" ]; then
 425         for d in $udi_list; do
 426             if [[ ! "$(hal-get-property --udi $d --key net.physical_device)" =~ computer ]]; then
 427                 NICS="$NICS $(hal-get-property --udi "$d" --key net.interface)"
 428             fi
 429         done
 430     fi
 431
 432     # Add virtio NICs that were possibly not detected by hal
 433     NICS="$NICS $(ifconfig -a | awk '/Ethernet/ {print $1}' | grep -v -E "^br|^bond|^vnet|^virbr|\." | xargs)"
 434     NICS=$(echo $NICS | tr ' ' '\n' | sort -u | xargs)
 435
 436     PS3="Please select an interface or configuration option: "
 437 }
 438
 439 if [ "$1" == "AUTO" ]; then
 440     if [ -n "$OVIRT_BOOTIF" ]; then
 441         configure_interface "$OVIRT_BOOTIF" AUTO
 442         configure_dns "$OVIRT_DNS" AUTO
 443         configure_ntp "$OVIRT_NTP" AUTO
 444     else
 445         printf "No network interface specified. Unable to configure networking."
 446         exit 0
 447     fi
 448 else
 449     setup_menu
 450
 451     while true; do
 452         printf "\n\nManagement Network Configuration\n\n" >&2
 453         printf "***** WARNING *****\n"
 454         printf "Configuring the network will destroy any existing networking\n"
 455         printf "configuration on this system.\n"
 456         printf "***** WARNING *****\n"
 457         printf "\nPhysical Networking Devices (*=PXE boot interface)\n"
 458         printf " %-10s %-12s %-18s\n" "Name" "Driver" "MAC"
 459         for nic in $NICS; do
 460             driver=$(basename $(readlink /sys/class/net/$nic/device/driver) 2>/dev/null)
 461             mac=$(cat /sys/class/net/$nic/address)
 462             if [ "$nic" = "$OVIRT_BOOTIF" ]; then
 463                 pxe="*"
 464             else
 465                 pxe=" "
 466             fi
 467             printf "%s%-10s %-12s %-18s\n" "$pxe" "$nic" "$driver" "$mac"
 468         done
 469
 470         DNS="DNS"
 471         NTP="NTP"
 472         Abort="Abort"
 473         Save="Save And Return To Menu"
 474         select NIC in $NICS "$DNS" "$NTP" "$Abort" "$Save"
 475         do
 476             printf "\n"
 477             case "$NIC" in
 478                 "$DNS") configure_dns "$OVIRT_DNS"; break ;;
 479                 "$NTP") configure_ntp "$OVIRT_NTP"; break ;;
 480                 "$Abort") rm -f "${WORKDIR}"/augtool-*; exit 99;;
 481                 "$Save")
 482                     save_ntp_configuration
 483                     break 2;;
 484                 *)
 485                     if [[ -n "${NIC}" ]] && [[ "${NICS}" =~ "${NIC}" ]]; then
 486                         configure_interface $NIC $IFACE_NUMBER
 487                     else
 488                         printf "\nInvalid option selected.\n"
 489                     fi
 490                     break
 491                     ;;
 492             esac
 493         done
 494     done
 495 fi
 496
 497 start_log
 498 net_configured=0
 499 if ls "$WORKDIR"/augtool-* > /dev/null 2>&1 ; then
 500     log "Configuring network"
 501
 502     # delete existing scripts
 503     for script in /etc/sysconfig/network-scripts/ifcfg-*; do
 504         if [[ ! "${script}" =~ ifcfg-lo ]]; then
 505             ovirt_safe_delete_config $script
 506         fi
 507     done
 508
 509     config="$WORKDIR"/config-augtool
 510     cat "$WORKDIR"/augtool-* > $config \
 511         && augtool $config
 512     if [ $? = 0 ]; then
 513         log "Network configured successfully"
 514         net_configured=1
 515         ovirt_store_config \
 516             /etc/sysconfig/network-scripts/ifcfg* \
 517             $NTP_CONFIG_FILE
 518     else
 519         log "Error configuring network, see $OVIRT_LOGFILE"
 520         stop_log
 521         exit 1
 522     fi
 523 fi
 524 stop_log
 525
 526 if [ "$net_configured" = 1 ]; then
 527     service network stop > /dev/null 2>&1
 528     for i in `brctl show | grep breth | awk '{print $1}'`
 529     do
 530       ifconfig $i down
 531       brctl delbr $i
 532     done
 533     service network start
 534 fi