sysconfig/network-scripts/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 . /etc/sysconfig/network-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="/etc/sysconfig/network-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" "$DEVICE"
 102
 103         exit 0
 104 fi
 105
 106 if [ -n "$MACADDR" ]; then
 107         ip link set ${DEVICE} address ${MACADDR}
 108 fi
 109
 110 ip link set ${DEVICE} multicast ${MULTICAST} ${ARP} down
 111
 112 if [ -n "$MTU" ]; then
 113         ip link set ${DEVICE} mtu ${MTU}
 114 fi
 115
 116 if is_yes "${IPV6_NETWORKING}" && is_yes "${IPV6_DISABLE_AUTOCONF}"; then
 117         run_cmd "Disabling IPv6 autoconfiguration" sysctl -w net.ipv6.conf.${DEVICE}.autoconf=0
 118 fi
 119
 120 if is_wireless_device "${DEVICE}"; then
 121         is_yes "${WLAN_UPEARLY}" && ip link set ${DEVICE} up
 122         wireless_param ${DEVICE}
 123 fi
 124
 125 if is_yes "${WLAN_WPA}"; then
 126         /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
 127         [ -z "$WLAN_WPA_WAIT_TIMEOUT" ] && WLAN_WPA_WAIT_TIMEOUT=15
 128         # check_link_down sleeps for 0.5s
 129         check_link_down ${DEVICE} $(( $WLAN_WPA_WAIT_TIMEOUT * 2 ))
 130 fi
 131
 132 if [ "$HANDLING" = "2" ]; then
 133         exit 0
 134 fi
 135
 136 if [ -n "$BOOTPROTO" -a "$BOOTPROTO" != "none" -a "$BOOTPROTO" != "static" ]; then
 137         if is_yes "$IPV4_NETWORKING"; then
 138                 set_dhcpclient
 139
 140                 DHCP_ARGS=
 141                 if [ -n "$DHCP_CLIENT" ]; then
 142                         if [ -z "$DHCP_HOSTNAME" ]; then
 143                                 DHCP_HOSTNAME="$HOSTNAME"
 144                         fi
 145                         case ${DHCP_CLIENT##*/} in
 146                           pump)
 147                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
 148                                 DHCP_ARGS="$DHCP_ARGS -i $DEVICE"
 149                                 ;;
 150                           dhcpcd)
 151                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
 152                                 DHCP_ARGS="$DHCP_ARGS $DEVICE"
 153                                 if is_no "$ZEROCONF"; then
 154                                         DHCP_ARGS="$DHCP_ARGS --noipv4ll"
 155                                 fi
 156                                 ;;
 157                           dhcpxd)
 158                                 [ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-H $DHCP_HOSTNAME"
 159                                 DHCP_ARGS="$DHCP_ARGS $DEVICE"
 160                                 ;;
 161                           dhclient)
 162                                 # Can't specify a host with dhclient ?
 163                                 DHCP_ARGS="$DEVICE"
 164                                 ;;
 165                           avahi-autoipd)
 166                                 DHCP_ARGS="-D $DEVICE"
 167                                 ;;
 168                         esac
 169                 fi
 170                 DHCP_ARGS="$DHCP_OPTIONS $DHCP_ARGS"
 171
 172                 if check_link_down ${DEVICE}; then
 173                         run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "${DHCP_CLIENT##*/}")" /bin/false
 174                         nls '%s: Check cable/radio on-off switch?' "$DEVICE"
 175                         exit 1
 176                 fi
 177
 178                 if ! run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "${DHCP_CLIENT##*/}")" $DHCP_CLIENT $DHCP_ARGS; then
 179                         exit 1
 180                 fi
 181
 182                 # give time for determining IP information
 183                 check_device_down && sleep 1 && check_device_down && sleep 3
 184                 check_device_down && ip link set ${DEVICE} up
 185         fi
 186 else
 187         # IPv4 in use ?
 188         if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}" ]; then
 189                 # If broadcast is missing then autocalculate it
 190                 if ! (echo $IP4ADDROPT | grep -qE "brd|broadcast"); then
 191                         IP4ADDROPT="brd + ${IP4ADDROPT}"
 192                 fi
 193
 194                 if [ -n "${SUBDEVICE}" ]; then
 195                         ALIAS="label ${SUBDEVICE}"
 196                 fi
 197
 198                 if [ -n "$REMIP" ]; then
 199                         ip addr add ${IP4ADDR} peer ${REMIP} ${ALIAS} dev ${DEVICE} ${IP4ADDROPT}
 200                 else
 201                         ip addr add ${IP4ADDR} ${ALIAS} dev ${DEVICE} ${IP4ADDROPT}
 202                 fi
 203         fi
 204
 205         # Set device up
 206         ip link set ${DEVICE} up
 207
 208         # IPv6 in use ?
 209         if is_yes "$IPV6_NETWORKING" && [ -n "${IP6ADDR}" ]; then
 210                 ip addr add ${IP6ADDR} dev ${DEVICE} ${IP6ADDROPT}
 211                 if [ -n "${IP6ADDRLABEL}" ]; then
 212                         ip addrlabel add prefix ${IP6ADDR} dev ${DEVICE} label ${IP6ADDRLABEL}
 213                 fi
 214         fi
 215
 216         if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}" -a -x /sbin/arping ]; then
 217                 # update ARP cache of neighbouring computers
 218                 /sbin/arping -q -A -c 1 -I ${DEVICE} ${IP4ADDR%/*}
 219                 ( sleep 2; /sbin/arping -q -U -c 1 -I ${DEVICE} ${IP4ADDR%/*} ) > /dev/null 2>&1 < /dev/null &
 220         fi
 221
 222         # IPv4/6 gateways and default routes
 223         setup_ip_gw_ro
 224 fi
 225
 226 # device have to have ip address set before
 227 if is_yes "$PROXYARP"; then
 228         run_cmd "$(nls 'Enabling proxy ARP on %s' "${DEVICE}")" sysctl -w net.ipv4.conf.${DEVICE}.proxy_arp=1
 229 fi
 230
 231 if [ "$HANDLING" = "3" ]; then
 232         exit 0
 233 fi
 234
 235 if is_yes "$IPX"; then
 236         /etc/sysconfig/network-scripts/ifup-ipx $DEVICE
 237 fi
 238
 239 if is_yes "$ENABLE_6TO4"; then
 240         # find an usable IPv4 address for this device; might have been obtained by dhcp or ppp
 241         for ipv4 in `/sbin/ip addr show dev $DEVICE | awk -F'[ /]+' '/ inet /{print $3}'`; do
 242                 if [       `ipcalc -n $ipv4/8`  != "NETWORK=10.0.0.0"    \
 243                         -a `ipcalc -n $ipv4/12` != "NETWORK=172.16.0.0"  \
 244                         -a `ipcalc -n $ipv4/24` != "NETWORK=192.168.0.0" \
 245                         -a `ipcalc -n $ipv4/24` != "NETWORK=169.254.0.0" ]; then
 246                         local_ipv4=$ipv4
 247                         local_ipv6=`printf "2002:%02x%02x:%02x%02x::1" $(echo $ipv4 | tr . ' ')`
 248                         break
 249                 fi
 250         done
 251         if [ -n "$local_ipv4" ]; then   # we have an usable IPv4 address; set up the tunnel
 252                 tun6to4=tun6to4_$DEVICE
 253                 /sbin/ip tunnel add $tun6to4 mode sit ttl 128 remote any local $local_ipv4
 254                 /sbin/ip link set dev $tun6to4 up
 255                 /sbin/ip -6 addr  add $local_ipv6/16 dev $tun6to4
 256                 /sbin/ip -6 route add 2000::/3 via ::192.88.99.1 dev $tun6to4 metric 1
 257         fi
 258 fi
 259
 260 if [ "$HANDLING" = "4" ]; then
 261         exit 0
 262 fi
 263
 264 exec /etc/sysconfig/network-scripts/ifup-post $CONFIG