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1 #!/bin/bash |
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2 |
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3 usage() { |
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4 cat << EOF |
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5 usage: $0 options |
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6 |
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7 This script runs the dtn daemon with optional disruptions. |
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8 |
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9 OPTIONS: |
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10 -h Show this message |
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11 -i n Restart the daemon every n seconds (used to force fragmentation) |
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12 -l n Drop all links every n seconds (used to force fragmentation) |
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13 -r Remove log file at start |
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14 -t tidy the daemon the first time |
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15 -T tidy the daemon every time |
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16 EOF |
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17 } |
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18 |
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19 if [[ $EUID -ne 0 ]]; then |
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20 echo "This script must be run as root" 1>&2 |
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21 exit 1 |
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22 fi |
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23 |
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24 DTND="/home/aidan/build/DTN2-BPQ/daemon/dtnd" |
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25 LOG="/var/log/dtn/dtnd.log" |
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26 |
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27 INT=0 |
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28 INT_LINK=0 |
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29 RM_LOG=0 |
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30 TIDY=0 |
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31 TIDY_ALL=0 |
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32 while getopts “hi:l:rtT” OPTION; do |
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33 case $OPTION in |
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34 h) |
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35 usage |
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36 exit 1 |
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37 ;; |
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38 i) |
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39 INT=1 |
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40 SEC=$OPTARG |
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41 ;; |
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42 l) |
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43 INT_LINK=1 |
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44 SEC=$OPTARG |
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45 ;; |
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46 r) |
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47 RM_LOG=1 |
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48 ;; |
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49 t) |
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50 TIDY=1 |
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51 ;; |
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52 T) |
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53 TIDY=1 |
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54 TIDY_ALL=1 |
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55 ;; |
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56 ?) |
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57 usage |
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58 exit 1 |
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59 esac |
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60 done |
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61 |
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62 |
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63 echo "stop dtnd (if running)" |
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64 dtnd-control stop |
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65 |
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66 if [[ $RM_LOG -eq 1 ]]; then |
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67 echo "removing old log file" |
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68 rm -f $LOG |
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69 fi |
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70 |
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71 if [[ $TIDY -eq 1 ]]; then |
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72 echo "starting dtnd (tidy)" |
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73 $DTND -o $LOG -l debug -dt |
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74 else |
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75 echo "starting dtnd" |
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76 $DTND -o $LOG -l debug -d |
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77 fi |
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78 |
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79 while [[ $INT -eq 1 ]]; do |
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80 echo "sleep for $SEC seconds..." |
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81 sleep $SEC |
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82 echo "stop dtnd" |
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83 dtnd-control stop |
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84 |
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85 echo "sleep for 5 seconds..." |
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86 sleep 5 |
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87 if [[ $TIDY_ALL -eq 1 ]]; then |
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88 echo "starting dtnd (tidy)" |
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89 $DTND -o $LOG -l debug -dt |
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90 else |
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91 echo "starting dtnd" |
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92 $DTND -o $LOG -l debug -d |
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93 fi |
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94 done |
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95 |
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96 while [[ $INT_LINK -eq 1 ]]; do |
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97 echo "sleep for $SEC seconds..." |
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98 sleep $SEC |
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99 |
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100 dtnd-control link_dump | \ |
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101 grep -v "^$" | \ |
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102 awk '{print $1}' | \ |
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103 while read link; do |
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104 echo "closing link: $link..." |
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105 dtnd-control -name $link link_close |
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106 done |
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107 done |
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108 |
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109 sleep 2 |
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110 echo "check if the daemon is running before exiting" |
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111 dtnd-control check |
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112 |
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113 exit 0 |
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114 |