1 | #!/bin/bash |
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2 | # Network Interface Configuration System |
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3 | # Copyright (c) 1996-2005 Red Hat, Inc. all rights reserved. |
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4 | # |
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5 | # This program is free software; you can redistribute it and/or modify |
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6 | # it under the terms of the GNU General Public License, version 2, |
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7 | # as published by the Free Software Foundation. |
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8 | # |
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9 | # This program is distributed in the hope that it will be useful, |
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10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | # GNU General Public License for more details. |
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13 | # |
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14 | # You should have received a copy of the GNU General Public License |
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15 | # along with this program; if not, write to the Free Software |
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16 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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17 | |
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18 | . /etc/init.d/functions |
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19 | |
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20 | cd /etc/sysconfig/network-scripts |
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21 | . ./network-functions |
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22 | |
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23 | [ -f ../network ] && . ../network |
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24 | |
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25 | CONFIG=${1} |
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26 | |
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27 | need_config ${CONFIG} |
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28 | |
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29 | source_config |
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30 | |
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31 | # Old BOOTP variable |
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32 | if [ "${BOOTP}" = "yes" ]; then |
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33 | BOOTPROTO=bootp |
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34 | fi |
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35 | |
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36 | if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then |
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37 | DYNCONFIG=true |
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38 | fi |
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39 | |
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40 | # load the module associated with that device |
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41 | # /sbin/modprobe ${REALDEVICE} |
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42 | is_available ${REALDEVICE} |
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43 | |
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44 | # remap, if the device is bound with a MAC address and not the right device num |
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45 | # bail out, if the MAC does not fit |
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46 | if [ -n "${HWADDR}" ]; then |
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47 | FOUNDMACADDR=`get_hwaddr ${REALDEVICE}` |
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48 | if [ "${FOUNDMACADDR}" != "${HWADDR}" -a "${FOUNDMACADDR}" != "${MACADDR}" ]; then |
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49 | echo $"Device ${DEVICE} has different MAC address than expected, ignoring." |
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50 | exit 1 |
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51 | fi |
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52 | fi |
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53 | |
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54 | if [ "${TYPE}" = "Bridge" ]; then |
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55 | if [ ! -x /usr/sbin/brctl ]; then |
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56 | echo $"Bridge support not available: brctl not found" |
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57 | exit 1 |
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58 | fi |
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59 | if [ ! -d /sys/class/net/${DEVICE}/bridge ]; then |
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60 | /usr/sbin/brctl addbr ${DEVICE} || exit 1 |
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61 | fi |
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62 | [ -n "${DELAY}" ] && /usr/sbin/brctl setfd ${DEVICE} ${DELAY} |
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63 | [ -n "${GCINT}" ] && /usr/sbin/brctl setgcint ${DEVICE} ${GCINT} |
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64 | [ -n "${STP}" ] && /usr/sbin/brctl stp ${DEVICE} ${STP} |
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65 | fi |
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66 | |
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67 | # now check the real state |
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68 | is_available ${REALDEVICE} || { |
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69 | if [ -n "$alias" ]; then |
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70 | echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization." |
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71 | else |
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72 | echo $"Device ${DEVICE} does not seem to be present, delaying initialization." |
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73 | fi |
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74 | exit 1 |
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75 | } |
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76 | |
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77 | # is the device wireless? If so, configure wireless device specifics |
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78 | is_wireless_device ${DEVICE} && . ./ifup-wireless |
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79 | |
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80 | if [ -n "${BRIDGE}" -a -x /usr/sbin/brctl ]; then |
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81 | if [ ! -d /sys/class/net/${BRIDGE}/bridge ]; then |
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82 | /usr/sbin/brctl addbr ${BRIDGE} 2>/dev/null |
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83 | fi |
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84 | /sbin/ip addr flush dev ${DEVICE} 2>/dev/null |
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85 | /sbin/ip link set dev ${DEVICE} up |
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86 | if [ -n "$ETHTOOL_OPTS" ] ; then |
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87 | /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS |
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88 | fi |
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89 | [ -n "${LINKDELAY}" ] && /bin/sleep ${LINKDELAY} |
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90 | /usr/sbin/brctl addif ${BRIDGE} ${DEVICE} |
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91 | # Upon adding a device to a bridge, |
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92 | # it's necessary to make radvd reload its config |
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93 | [ -r /var/run/radvd/radvd.pid ] && kill -HUP `cat /var/run/radvd/radvd.pid` |
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94 | exit 0 |
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95 | fi |
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96 | |
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97 | # this isn't the same as the MAC in the configuration filename. It is |
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98 | # available as a configuration option in the config file, forcing the kernel |
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99 | # to think an ethernet card has a different MAC address than it really has. |
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100 | if [ -n "${MACADDR}" ]; then |
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101 | ip link set dev ${DEVICE} address ${MACADDR} |
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102 | fi |
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103 | if [ -n "${MTU}" ]; then |
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104 | ip link set dev ${DEVICE} mtu ${MTU} |
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105 | fi |
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106 | |
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107 | # slave device? |
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108 | if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" ]; then |
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109 | grep -wq "${DEVICE}" /sys/class/net/${MASTER}/bonding/slaves || { |
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110 | /sbin/ip link set dev ${DEVICE} down |
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111 | echo "+${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null |
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112 | } |
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113 | if [ -n "$ETHTOOL_OPTS" ] ; then |
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114 | /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS |
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115 | fi |
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116 | |
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117 | exit 0 |
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118 | fi |
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119 | |
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120 | # Bonding initialization. For DHCP, we need to enslave the devices early, |
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121 | # so it can actually get an IP. |
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122 | if [ "$ISALIAS" = no ] && is_bonding_device ${DEVICE} ; then |
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123 | |
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124 | /sbin/ip link set dev ${DEVICE} down |
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125 | |
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126 | # add the bits to setup driver parameters here |
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127 | for arg in $BONDING_OPTS ; do |
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128 | key=${arg%%=*}; |
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129 | value=${arg##*=}; |
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130 | if [ "${key}" = "arp_ip_target" ]; then |
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131 | OLDIFS=$IFS; |
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132 | IFS=','; |
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133 | for arp_ip in $value; do |
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134 | echo +$arp_ip > /sys/class/net/${DEVICE}/bonding/$key |
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135 | done |
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136 | IFS=$OLDIFS; |
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137 | else |
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138 | echo $value > /sys/class/net/${DEVICE}/bonding/$key |
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139 | fi |
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140 | done |
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141 | |
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142 | /sbin/ip link set dev ${DEVICE} up |
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143 | [ -n "${LINKDELAY}" ] && /bin/sleep ${LINKDELAY} |
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144 | for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do |
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145 | is_ignored_file "$device" && continue |
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146 | /sbin/ifup ${device##*/} |
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147 | done |
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148 | |
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149 | # add the bits to setup the needed post enslavement parameters |
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150 | for arg in $BONDING_OPTS ; do |
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151 | key=${arg%%=*}; |
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152 | value=${arg##*=}; |
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153 | if [ "${key}" = "primary" ]; then |
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154 | echo $value > /sys/class/net/${DEVICE}/bonding/$key |
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155 | fi |
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156 | done |
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157 | fi |
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158 | |
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159 | |
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160 | if [ -n "${DYNCONFIG}" -a -x /sbin/dhclient ]; then |
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161 | # Remove any temporary references which were previously added to dhclient config |
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162 | if [ -w /etc/dhclient-${DEVICE}.conf ] ; then |
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163 | LC_ALL=C grep -v "# temporary RHL ifup addition" /etc/dhclient-${DEVICE}.conf > /etc/dhclient-${DEVICE}.conf.ifupnew 2> /dev/null |
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164 | cat /etc/dhclient-${DEVICE}.conf.ifupnew > /etc/dhclient-${DEVICE}.conf |
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165 | rm -f /etc/dhclient-${DEVICE}.conf.ifupnew |
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166 | fi |
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167 | if [[ "${PERSISTENT_DHCLIENT}" = [yY1]* ]]; then |
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168 | ONESHOT=""; |
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169 | else |
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170 | ONESHOT="-1"; |
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171 | fi; |
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172 | if [ -n "${DHCP_HOSTNAME}" ]; then |
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173 | # Send a host-name to the DHCP server (requ. by some dhcp servers). |
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174 | if [ -w /etc/dhclient-${DEVICE}.conf ] ; then |
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175 | if ! LC_ALL=C grep "send *host-name *\"${DHCP_HOSTNAME}\"" /etc/dhclient-${DEVICE}.conf > /dev/null 2>&1 ; then |
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176 | echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf |
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177 | fi |
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178 | elif ! [ -e /etc/dhclient-${DEVICE}.conf ] ; then |
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179 | echo "send host-name \"${DHCP_HOSTNAME}\"; # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf |
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180 | fi |
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181 | fi |
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182 | # allow users to use generic '/etc/dhclient.conf' (as documented in manpage!) |
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183 | # if per-device file doesn't exist or is empty |
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184 | if [ -s /etc/dhclient-${DEVICE}.conf ]; then |
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185 | DHCLIENTCONF="-cf /etc/dhclient-${DEVICE}.conf"; |
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186 | else |
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187 | DHCLIENTCONF=''; |
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188 | fi; |
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189 | # copy any lease obtained by the initrd |
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190 | if [ -f /dev/.dhclient-${DEVICE}.leases ] ; then |
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191 | mv -f /dev/.dhclient-${DEVICE}.leases /var/lib/dhclient/dhclient-${DEVICE}.leases |
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192 | [ -x /sbin/restorecon ] && restorecon /var/lib/dhclient/dhclient-${DEVICE}.leases > /dev/null 2>&1 |
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193 | fi |
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194 | DHCLIENTARGS="${DHCLIENTARGS} ${ONESHOT} -q ${DHCLIENTCONF} -lf /var/lib/dhclient/dhclient-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid" |
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195 | echo |
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196 | echo -n $"Determining IP information for ${DEVICE}..." |
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197 | if [[ "${PERSISTENT_DHCLIENT}" != [yY1]* ]] && check_link_down ${DEVICE}; then |
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198 | echo $" failed; no link present. Check cable?" |
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199 | ip link set dev ${DEVICE} down >/dev/null 2>&1 |
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200 | exit 1 |
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201 | fi |
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202 | |
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203 | if [ -n "$ETHTOOL_OPTS" ] ; then |
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204 | /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS |
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205 | fi |
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206 | |
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207 | if /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then |
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208 | echo $" done." |
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209 | else |
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210 | echo $" failed." |
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211 | exit 1 |
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212 | fi |
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213 | # end dynamic device configuration |
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214 | else |
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215 | if [ -z "${IPADDR}" ]; then |
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216 | # enable device without IP, useful for e.g. PPPoE |
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217 | ip link set dev ${REALDEVICE} up |
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218 | if [ -n "$ETHTOOL_OPTS" ] ; then |
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219 | /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS |
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220 | fi |
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221 | [ -n "${LINKDELAY}" ] && /bin/sleep ${LINKDELAY} |
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222 | |
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223 | /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} |
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224 | exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} |
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225 | fi |
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226 | |
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227 | expand_config |
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228 | |
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229 | [ -n "${ARP}" ] && \ |
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230 | ip link set dev ${REALDEVICE} $(toggle_value arp $ARP) |
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231 | |
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232 | if ! ip link set dev ${REALDEVICE} up ; then |
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233 | echo $"Failed to bring up ${DEVICE}." |
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234 | exit 1 |
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235 | fi |
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236 | |
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237 | if [ -n "$ETHTOOL_OPTS" ] ; then |
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238 | /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS |
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239 | fi |
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240 | |
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241 | [ -n "${LINKDELAY}" ] && /bin/sleep ${LINKDELAY} |
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242 | |
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243 | if [ "${DEVICE}" = "lo" ]; then |
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244 | SCOPE="scope host" |
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245 | else |
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246 | SCOPE=${SCOPE:-} |
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247 | fi |
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248 | |
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249 | if [ -n "$SRCADDR" ]; then |
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250 | SRC="src $SRCADDR" |
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251 | else |
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252 | SRC= |
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253 | fi |
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254 | |
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255 | if [ "${REALDEVICE}" != "lo" ]; then |
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256 | if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${IPADDR}/${PREFIX}" ; then |
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257 | if ! /sbin/arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${IPADDR} ; then |
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258 | echo $"Error, some other host already uses address ${IPADDR}." |
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259 | exit 1 |
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260 | fi |
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261 | if ! ip addr add ${IPADDR}/${PREFIX} \ |
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262 | brd ${BROADCAST:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then |
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263 | echo $"Error adding address ${IPADDR} for ${DEVICE}." |
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264 | fi |
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265 | fi |
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266 | |
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267 | if [ -n "$SRCADDR" ]; then |
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268 | sysctl -w "net.ipv4.conf.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1 |
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269 | fi |
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270 | |
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271 | # update ARP cache of neighboring computers |
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272 | /sbin/arping -q -A -c 1 -I ${REALDEVICE} ${IPADDR} |
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273 | ( sleep 2; |
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274 | /sbin/arping -q -U -c 1 -I ${REALDEVICE} ${IPADDR} ) > /dev/null 2>&1 < /dev/null & |
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275 | fi |
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276 | |
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277 | # Set a default route. |
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278 | if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then |
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279 | # set up default gateway. replace if one already exists |
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280 | if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then |
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281 | ip route replace default ${METRIC:+metric $METRIC} \ |
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282 | via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} \ |
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283 | ${GATEWAYDEV:+dev $GATEWAYDEV} |
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284 | elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then |
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285 | ip route replace default ${METRIC:+metric $METRIC} \ |
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286 | ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} |
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287 | fi |
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288 | fi |
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289 | fi |
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290 | |
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291 | # Add Zeroconf route. |
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292 | if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" -a "${REALDEVICE}" != "lo" ]; then |
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293 | ip route add 169.254.0.0/16 dev ${REALDEVICE} metric $((1000 + $(cat /sys/class/net/${REALDEVICE}/ifindex))) scope link |
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294 | fi |
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295 | |
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296 | # IPv6 initialisation? |
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297 | /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} |
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298 | if [[ "${DHCPV6C}" = [Yy1]* ]] && [ -x /sbin/dhcp6c ]; then |
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299 | /sbin/dhcp6c ${DEVICE}; |
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300 | dhcp6_pid=(`/bin/ps -eo 'pid,args' | /bin/grep "dhcp6c ${DEVICE}" | egrep -v grep`); |
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301 | echo ${dhcp6_pid[0]} > /var/run/dhcp6c_${DEVICE}.pid |
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302 | fi |
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303 | |
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304 | if [ "${IPX}" = yes ]; then |
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305 | /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE} |
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306 | fi |
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307 | |
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308 | exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} |
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309 | |
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