1 | #!/bin/bash |
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2 | # Network Interface Configuration System |
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3 | # Copyright (c) 1996-2002 Red Hat, Inc. all rights reserved. |
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4 | # |
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5 | # Based on PCMCIA wireless script by (David Hinds/Jean Tourrilhes) |
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6 | # |
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7 | # This program is free software; you can redistribute it and/or modify |
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8 | # it under the terms of the GNU General Public License, version 2, |
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9 | # as published by the Free Software Foundation. |
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10 | # |
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11 | # This program is distributed in the hope that it will be useful, |
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12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | # GNU General Public License for more details. |
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15 | # |
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16 | # You should have received a copy of the GNU General Public License |
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17 | # along with this program; if not, write to the Free Software |
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18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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19 | # |
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20 | # Configure wireless network device options. See iwconfig(8) for more info. |
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21 | # Valid variables: |
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22 | # MODE: Ad-Hoc, Managed, etc. |
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23 | # ESSID: Name of the wireless network |
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24 | # NWID: Name of this machine on the network. Hostname is default |
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25 | # FREQ: Frequency to operate on. See CHANNEL |
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26 | # CHANNEL: Numbered frequency to operate on. See FREQ |
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27 | # SENS: Sensitivity threshold for packet rejection. |
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28 | # RATE: Transfer rate. Usually one of Auto, 11, 5, 2, or 1. |
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29 | # KEY: Encryption key for WEP. |
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30 | # RTS: Explicit RTS handshake. Usually not specified (auto) |
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31 | # FRAG: Fragmentation threshold to split packets. Usually not specified. |
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32 | # SPYIPS: List of IP addresses to "spy" on for link performance stats. |
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33 | # IWCONFIG: Extra parameters to pass directly to IWCONFIG |
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34 | # SECURITYMODE: Security mode, e.g: 'open' or 'restricted' |
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35 | # IWPRIV: Extra parameters to pass directly to IWPRIV |
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36 | |
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37 | # Only meant to be called from ifup. |
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38 | |
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39 | # Mode need to be first : some settings apply only in a specific mode ! |
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40 | if [ -n "$MODE" ] ; then |
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41 | iwconfig $DEVICE mode $MODE |
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42 | fi |
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43 | |
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44 | # Set link up (some cards require this.) |
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45 | /sbin/ip link set dev ${DEVICE} up |
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46 | |
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47 | # This is a bit hackish, but should do the job right... |
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48 | if [ -n "$ESSID" -o -n "$MODE" ] ; then |
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49 | NICKNAME=`/bin/hostname` |
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50 | iwconfig $DEVICE nick "$NICKNAME" >/dev/null 2>&1 |
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51 | fi |
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52 | # Regular stuff... |
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53 | if [ -n "$NWID" ] ; then |
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54 | iwconfig $DEVICE nwid $NWID |
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55 | fi |
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56 | if [ -n "$FREQ" -a "$MODE" != "Managed" ] ; then |
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57 | iwconfig $DEVICE freq $FREQ |
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58 | elif [ -n "$CHANNEL" -a "$MODE" != "Managed" ] ; then |
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59 | iwconfig $DEVICE channel $CHANNEL |
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60 | fi |
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61 | if [ -n "$SENS" ] ; then |
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62 | iwconfig $DEVICE sens $SENS |
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63 | fi |
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64 | if [ -n "$RATE" ] ; then |
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65 | iwconfig $DEVICE rate "$RATE" |
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66 | fi |
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67 | if [ -n "$KEY" -o -n "$KEY1" -o -n "$KEY2" -o -n "$KEY3" -o -n "$KEY4" ] ; then |
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68 | [ -n "$KEY1" ] && iwconfig $DEVICE key "[1]" $KEY1 |
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69 | [ -n "$KEY2" ] && iwconfig $DEVICE key "[2]" $KEY2 |
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70 | [ -n "$KEY3" ] && iwconfig $DEVICE key "[3]" $KEY3 |
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71 | [ -n "$KEY4" ] && iwconfig $DEVICE key "[4]" $KEY4 |
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72 | [ -n "$DEFAULTKEY" ] && iwconfig $DEVICE key "[${DEFAULTKEY}]" |
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73 | [ -n "$KEY" ] && iwconfig $DEVICE key $KEY |
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74 | else |
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75 | iwconfig $DEVICE key off |
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76 | fi |
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77 | if [ -n "$SECURITYMODE" ]; then |
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78 | iwconfig $DEVICE enc $SECURITYMODE |
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79 | fi |
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80 | if [ -n "$RTS" ] ; then |
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81 | iwconfig $DEVICE rts $RTS |
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82 | fi |
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83 | if [ -n "$FRAG" ] ; then |
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84 | iwconfig $DEVICE frag $FRAG |
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85 | fi |
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86 | |
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87 | # More specific parameters passed directly to IWCONFIG |
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88 | if [ -n "$IWCONFIG" ] ; then |
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89 | iwconfig $DEVICE $IWCONFIG |
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90 | fi |
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91 | |
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92 | if [ -n "$SPYIPS" ] ; then |
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93 | for IP in $SPYIPS; do |
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94 | iwspy $DEVICE + $IP |
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95 | done |
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96 | fi |
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97 | if [ -n "$IWPRIV" ] ; then |
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98 | iwpriv $DEVICE $IWPRIV |
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99 | fi |
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100 | |
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101 | # ESSID need to be last : most device re-perform the scanning/discovery |
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102 | # when this is set, and things like encryption keys are better be |
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103 | # defined if we want to discover the right set of APs/nodes. |
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104 | if [ -n "$ESSID" ] ; then |
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105 | iwconfig $DEVICE essid "$ESSID" |
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106 | else |
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107 | # use any essid |
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108 | iwconfig $DEVICE essid any >/dev/null 2>&1 |
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109 | fi |
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