lib/ifup

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