lib/ifup

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