1 | #!/bin/bash |
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2 | # Network Interface Configuration System |
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3 | # Copyright (c) 1996-2001 Red Hat, Inc. all rights reserved. |
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4 | # |
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5 | # This software may be freely redistributed under the terms of the GNU |
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6 | # public license. |
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7 | # |
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8 | # You should have received a copy of the GNU General Public License |
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9 | # along with this program; if not, write to the Free Software |
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10 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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11 | |
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12 | . /etc/rc.d/init.d/functions |
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13 | |
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14 | cd /etc/sysconfig/network-scripts |
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15 | . network-functions |
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16 | |
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17 | [ -f ../network ] && . ../network |
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18 | |
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19 | CONFIG=${1} |
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20 | |
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21 | [ -z "${CONFIG}" ] && { |
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22 | echo $"Usage: ifup <device name>" >&2 |
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23 | exit 1 |
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24 | } |
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25 | |
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26 | need_config ${CONFIG} |
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27 | |
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28 | [ -f "${CONFIG}" ] || { |
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29 | echo $"$0: configuration for ${1} not found." >&2 |
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30 | echo $"Usage: ifup <device name>" >&2 |
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31 | exit 1 |
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32 | } |
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33 | |
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34 | source_config |
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35 | |
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36 | # Old BOOTP variable |
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37 | if [ "${BOOTP}" = "yes" ]; then |
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38 | BOOTPROTO=bootp |
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39 | fi |
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40 | |
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41 | if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then |
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42 | echo $"This device does not (yet) support dynamic IP configuration." >&2 |
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43 | exit 1 |
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44 | fi |
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45 | |
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46 | # load the module associated with that device |
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47 | # /sbin/modprobe ${REALDEVICE} |
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48 | is_available ${REALDEVICE} |
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49 | |
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50 | # remap, if the device is bound with a MAC address and not the right device num |
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51 | # bail out, if the MAC does not fit |
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52 | if [ -n "${HWADDR}" ]; then |
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53 | FOUNDMACADDR=`get_hwaddr ${REALDEVICE}` |
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54 | if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then |
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55 | curdev=`ip -o link | awk -F ':' -vIGNORECASE=1 "/$HWADDR/ { print \\$2 }"` |
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56 | [ -n "$curdev" ] && rename_device "${REALDEVICE}" "${HWADDR}" "${curdev}" || { |
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57 | echo $"Device ${DEVICE} has different MAC address than expected, ignoring." |
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58 | exit 1 |
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59 | } |
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60 | fi |
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61 | fi |
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62 | |
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63 | # now check the real state |
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64 | is_available ${REALDEVICE} || { |
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65 | if [ "$?" = "1" ] ; then |
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66 | echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization." |
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67 | exit 1 |
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68 | else |
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69 | exit 0 |
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70 | fi |
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71 | } |
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72 | |
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73 | # slave device? |
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74 | if [ "${SLAVE}" = yes ]; then |
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75 | echo $"This device does not slave operation." >&2 |
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76 | exit 1 |
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77 | fi |
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78 | |
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79 | # this isn't the same as the MAC in the configuration filename. It is |
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80 | # available as a configuration option in the config file, forcing the kernel |
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81 | # to think an ethernet card has a different MAC address than it really has. |
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82 | if [ -n "${MACADDR}" ]; then |
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83 | ip link set dev ${DEVICE} address ${MACADDR} |
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84 | fi |
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85 | if [ -n "${MTU}" ]; then |
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86 | ip link set dev ${DEVICE} mtu ${MTU} |
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87 | fi |
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88 | |
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89 | # Is there a firewall running, and does it look like one we configured? |
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90 | FWACTIVE= |
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91 | if iptables -L -n 2>/dev/null | LC_ALL=C grep -q RH-Lokkit-0-50-INPUT ; then |
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92 | FWACTIVE=1 |
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93 | else |
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94 | modprobe -r iptable_filter >/dev/null 2>&1 |
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95 | fi |
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96 | |
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97 | if [ -z "${IPADDR}" ]; then |
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98 | # enable device without IP, useful for e.g. PPPoE |
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99 | ip link set dev ${REALDEVICE} up |
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100 | |
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101 | if [ "${NETWORKING_IPV6}" = "yes" ]; then |
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102 | /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} |
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103 | fi |
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104 | exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} |
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105 | fi |
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106 | |
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107 | expand_config |
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108 | |
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109 | [ -n "${ARP}" ] && \ |
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110 | ip link set dev ${REALDEVICE} $(toggle_value arp $ARP) |
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111 | |
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112 | if ! ip link set dev ${REALDEVICE} up ; then |
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113 | echo $"Failed to bring up ${DEVICE}." |
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114 | exit 1 |
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115 | fi |
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116 | |
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117 | SCOPE=${SCOPE:-} |
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118 | |
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119 | if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${IPADDR}/${PREFIX}" ; then |
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120 | if ! ip addr add ${IPADDR}/${PREFIX} \ |
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121 | brd ${BROADCAST:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then |
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122 | echo $"Error adding address ${IPADDR} for ${DEVICE}." |
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123 | fi |
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124 | fi |
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125 | |
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126 | if [ -n "$SRCADDR" ]; then |
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127 | sysctl -w "net.ipv4.conf.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1 |
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128 | fi |
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129 | |
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130 | # Set a default route. |
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131 | if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then |
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132 | # set up default gateway. replace if one already exists |
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133 | if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then |
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134 | ip route replace default via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} ${GATEWAYDEV:+dev $GATEWAYDEV} |
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135 | elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then |
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136 | ip route replace default ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE} |
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137 | fi |
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138 | fi |
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139 | |
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140 | # Add Zeroconf route. |
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141 | if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" ]; then |
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142 | ip route replace 169.254.0.0/16 dev ${REALDEVICE} |
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143 | fi |
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144 | |
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145 | # IPv6 initialisation? |
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146 | if [ "${NETWORKING_IPV6}" = "yes" ]; then |
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147 | /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG} |
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148 | fi |
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149 | |
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150 | exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2} |
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151 | |
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