lib/ifup

   1 #!/bin/sh
   2 #
   3 #
   4 PATH=/sbin:/usr/sbin:/bin:/usr/bin
   5
   6 run_pre_up() { :; }
   7
   8 . /etc/sysconfig/network
   9 . /etc/rc.d/init.d/functions
  10 . /lib/rc-scripts/functions.network
  11
  12 # Will be removed in the future
  13 if is_yes "$NETWORKING"; then
  14         if [ -z "$IPV4_NETWORKING" ]; then
  15                 echo "NETWORKING is set to YES, but IPV4_NETWORKING is empty!"
  16                 echo "Please upgrade your config"
  17                 echo "Assuming you want IPv4 networking"
  18                 IPV4_NETWORKING=yes
  19                 export IPV4_NETWORKING
  20         fi
  21 fi
  22
  23 need_hostname
  24
  25 # device name must be ifcfg-somename
  26 DEV=$1
  27
  28 [ -z "$DEV" ] && {
  29         nls "Usage: %s <device name>" "ifup" >&2
  30         exit 1
  31 }
  32
  33 if [ $(id -u) != 0 ]; then
  34         if [ -x /sbin/usernetctl ]; then
  35                 exec /sbin/usernetctl $DEV up
  36         fi
  37         nls "Users cannot control this device." >&2
  38         exit 1
  39 fi
  40
  41 if [ -f "/etc/sysconfig/interfaces/ifcfg-$DEV" ]; then
  42         CONFIG="/etc/sysconfig/interfaces/ifcfg-$DEV"
  43 elif [ -f "/etc/sysconfig/interfaces/$DEV" ]; then
  44         CONFIG="/etc/sysconfig/interfaces/$DEV"
  45 else
  46         CONFIG="$DEV"
  47 fi
  48
  49 source_config
  50
  51 if [ "foo$2" = "fooboot" ] && is_no "${ONBOOT}"; then
  52         exit
  53 fi
  54
  55 if [ "foo$2" = "foohotplug" ] && ! is_yes "${HOTPLUG}"; then
  56         exit
  57 fi
  58
  59 if [ "foo$2" = "foopcmcia-hotplug" ] && ! is_yes "${PCMCIA_HOTPLUG}"; then
  60         exit
  61 fi
  62
  63 IPSETUP=no
  64
  65 # set all major variables
  66 setup_ip_param
  67
  68 SYSCTLDEVICE=$(echo ${DEVICE} | sed 's/\./\//g')
  69
  70 # anything you need done first
  71 run_pre_up
  72
  73 OTHERSCRIPT="/lib/rc-scripts/ifup-${DEVICETYPE}"
  74
  75 if [ -x "$OTHERSCRIPT" ]; then
  76         if is_yes "$DEFAULTHANDLING"; then
  77                 HANDLING=1
  78         fi
  79         if [ "$HANDLING" = "0" ]; then
  80                 exec $OTHERSCRIPT $CONFIG $2
  81         elif [ "$HANDLING" = "1" ]; then
  82                 $OTHERSCRIPT $CONFIG $2
  83         fi
  84 fi
  85
  86 if [ -n "$MACVLAN_DEV" -a -n "$MACVLAN_MACADDR" ]; then
  87         ip link del link ${MACVLAN_DEV} ${DEVICE} type macvlan > /dev/null 2>&1
  88         ip link add link ${MACVLAN_DEV} address ${MACVLAN_MACADDR} name ${DEVICE} type macvlan ${MACVLAN_MODE:+mode $MACVLAN_MODE}
  89 fi
  90
  91 # is this device available? (this catches PCMCIA devices for us)
  92 if ! /sbin/ip link set multicast ${MULTICAST} dev ${DEVICE} > /dev/null 2>&1; then
  93         nls "Delaying %s initialization" ${DEVICE}
  94         exit 1
  95 fi
  96
  97 if [ -n "$MACADDR" ]; then
  98         ip link set ${DEVICE} address ${MACADDR}
  99 fi
 100
 101 ip link set ${DEVICE} multicast ${MULTICAST} ${ARP} down
 102
 103 if [ -n "$MTU" ]; then
 104         ip link set ${DEVICE} mtu ${MTU}
 105 fi
 106
 107 if is_yes "${IPV6_NETWORKING}" && is_yes "${IPV6_DISABLE_AUTOCONF}"; then
 108         run_cmd "Disabling IPv6 autoconfiguration" sysctl -w net.ipv6.conf.${SYSCTLDEVICE}.autoconf=0
 109 fi
 110
 111 if is_wireless_device "${DEVICE}"; then
 112         is_yes "${WLAN_UPEARLY}" && ip link set ${DEVICE} up
 113         wireless_param ${DEVICE}
 114 fi
 115
 116 if is_yes "${WLAN_WPA}"; then
 117         /usr/sbin/wpa_supplicant -D ${WLAN_WPA_DRIVER:-wext} -c ${WLAN_WPA_CONFIG:-/etc/wpa_supplicant.conf} -i ${DEVICE} ${WLAN_WPA_OPTIONS} -P "/var/run/wpa_supplicant-${DEVICE}.pid" -B
 118         [ -z "$WLAN_WPA_WAIT_TIMEOUT" ] && WLAN_WPA_WAIT_TIMEOUT=15
 119         # check_link_down sleeps for 0.5s
 120         check_link_down ${DEVICE} $(( $WLAN_WPA_WAIT_TIMEOUT * 2 ))
 121 fi
 122
 123 if [ -n "$ETHTOOL_OPTS" ] ; then
 124     /sbin/ethtool -s $DEVICE $ETHTOOL_OPTS
 125 fi
 126
 127 if is_yes "$SLAVE" && [ -n "$MASTER" ] ; then
 128         if ! grep -wq "${DEVICE}" /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null; then
 129                 nls "Enslaving %s to %s" "$DEVICE" "$MASTER"
 130                 ip link set dev ${DEVICE} down
 131                 echo "+${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null
 132         fi
 133         exit 0
 134 fi
 135
 136 if [ "$HANDLING" = "2" ]; then
 137         exit 0
 138 fi
 139
 140 if [ -n "$BOOTPROTO" -a "$BOOTPROTO" != "none" -a "$BOOTPROTO" != "static" ]; then
 141         if is_yes "$IPV4_NETWORKING"; then
 142                 set_dhcpclient
 143
 144                 DHCP_ARGS=
 145                 if [ -n "$DHCP_CLIENT" ]; then
 146                         if [ -z "$DHCP_HOSTNAME" ]; then
 147                                 # set DHCP_HOSTNAME only basename
 148                                 DHCP_HOSTNAME=${HOSTNAME%%.*}
 149                         fi
 150                         case ${DHCP_CLIENT##*/} in
 151                           pump)
 152                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
 153                                 DHCP_ARGS="$DHCP_ARGS -i $DEVICE"
 154                                 ;;
 155                           dhcpcd)
 156                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
 157                                 DHCP_ARGS="$DHCP_ARGS $DEVICE"
 158                                 if is_no "$ZEROCONF"; then
 159                                         DHCP_ARGS="$DHCP_ARGS --noipv4ll"
 160                                 fi
 161                                 ;;
 162                           dhcpxd)
 163                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-H $DHCP_HOSTNAME"
 164                                 DHCP_ARGS="$DHCP_ARGS $DEVICE"
 165                                 ;;
 166                           dhclient)
 167                                 # Can't specify a host with dhclient ?
 168                                 DHCP_ARGS="$DEVICE -pf /var/run/dhclient.$DEVICE.pid -lf /var/lib/dhclient/dhclient.$DEVICE.leases"
 169                                 if [ -f /etc/dhclient.$DEVICE.conf ] ; then
 170                                         DHCP_ARGS="$DHCP_ARGS -cf /etc/dhclient.$DEVICE.conf"
 171                                 fi
 172                                 ;;
 173                           avahi-autoipd)
 174                                 DHCP_ARGS="-D $DEVICE"
 175                                 ;;
 176                         esac
 177                 fi
 178                 DHCP_ARGS="$DHCP_OPTIONS $DHCP_ARGS"
 179
 180                 [ -z "$CHECK_LINK_WAIT_TIMEOUT" ] && CHECK_LINK_WAIT_TIMEOUT=5
 181                 if check_link_down ${DEVICE} $(( $CHECK_LINK_WAIT_TIMEOUT * 2 )); then
 182                         run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "${DHCP_CLIENT##*/}")" /bin/false
 183                         nls '%s: Check cable/radio on-off switch?' "$DEVICE"
 184                         exit 1
 185                 fi
 186
 187                 if ! run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "${DHCP_CLIENT##*/}")" $DHCP_CLIENT $DHCP_ARGS; then
 188                         exit 1
 189                 fi
 190
 191                 # give time for determining IP information
 192                 check_device_down && sleep 1 && check_device_down && sleep 3
 193                 check_device_down && ip link set ${DEVICE} up
 194         fi
 195 else
 196         # IPv4 in use ?
 197         if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}" ]; then
 198                 # If broadcast is missing then autocalculate it
 199                 if ! (echo $IP4ADDROPT | grep -qE "brd|broadcast"); then
 200                         IP4ADDROPT="brd + ${IP4ADDROPT}"
 201                 fi
 202
 203                 if [ -n "${SUBDEVICE}" ]; then
 204                         ALIAS="label ${SUBDEVICE}"
 205                 fi
 206
 207                 if [ -n "$REMIP" ]; then
 208                         ip addr add ${IP4ADDR} peer ${REMIP} ${ALIAS} dev ${DEVICE} ${IP4ADDROPT}
 209                 else
 210                         ip addr add ${IP4ADDR} ${ALIAS} dev ${DEVICE} ${IP4ADDROPT}
 211                 fi
 212         fi
 213
 214         # Set device up
 215         ip link set ${DEVICE} up
 216
 217         # IPv6 in use ?
 218         if is_yes "$IPV6_NETWORKING" && [ -n "${IP6ADDR}" ]; then
 219                 ip addr add ${IP6ADDR} dev ${DEVICE} ${IP6ADDROPT}
 220                 if [ -n "${IP6ADDRLABEL}" ]; then
 221                         ip addrlabel add prefix ${IP6ADDR} dev ${DEVICE} label ${IP6ADDRLABEL}
 222                 fi
 223         fi
 224
 225         if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}" -a -x /sbin/arping ]; then
 226                 # update ARP cache of neighbouring computers
 227                 /sbin/arping -q -A -c 1 -I ${DEVICE} ${IP4ADDR%/*}
 228                 { ( sleep 2; /sbin/arping -q -U -c 1 -I ${DEVICE} ${IP4ADDR%/*} ) & } > /dev/null 2>&1
 229         fi
 230
 231         # IPv4/6 gateways and default routes
 232         setup_ip_gw_ro
 233 fi
 234
 235 # device have to have ip address set before
 236 if is_yes "$PROXYARP"; then
 237         run_cmd "$(nls 'Enabling proxy ARP on %s' "${DEVICE}")" sysctl -w net.ipv4.conf.${SYSCTLDEVICE}.proxy_arp=1
 238 fi
 239
 240 if [ "$HANDLING" = "3" ]; then
 241         exit 0
 242 fi
 243
 244 if is_yes "$IPX"; then
 245         /lib/rc-scripts/ifup-ipx $DEVICE
 246 fi
 247
 248 if is_yes "$ENABLE_6TO4"; then
 249         # find an usable IPv4 address for this device; might have been obtained by dhcp or ppp
 250         for ipv4 in `/sbin/ip addr show dev $DEVICE | awk -F'[ /]+' '/ inet /{print $3}'`; do
 251                 if [       `ipcalc -n $ipv4/8`  != "NETWORK=10.0.0.0"    \
 252                         -a `ipcalc -n $ipv4/12` != "NETWORK=172.16.0.0"  \
 253                         -a `ipcalc -n $ipv4/24` != "NETWORK=192.168.0.0" \
 254                         -a `ipcalc -n $ipv4/24` != "NETWORK=169.254.0.0" ]; then
 255                         local_ipv4=$ipv4
 256                         local_ipv6=`printf "2002:%02x%02x:%02x%02x::1" $(echo $ipv4 | tr . ' ')`
 257                         break
 258                 fi
 259         done
 260         if [ -n "$local_ipv4" ]; then   # we have an usable IPv4 address; set up the tunnel
 261                 tun6to4=tun6to4_$DEVICE
 262                 /sbin/ip tunnel add $tun6to4 mode sit ttl 128 remote any local $local_ipv4
 263                 /sbin/ip link set dev $tun6to4 up
 264                 /sbin/ip -6 addr  add $local_ipv6/16 dev $tun6to4
 265                 /sbin/ip -6 route add 2000::/3 via ::192.88.99.1 dev $tun6to4 metric 1
 266         fi
 267 fi
 268
 269 if [ "$HANDLING" = "4" ]; then
 270         exit 0
 271 fi
 272
 273 exec /lib/rc-scripts/ifup-post $CONFIG