contrib/package/freifunk-common/files/usr/bin/neigh.sh

   1 #!/bin/sh
   2
   3 . /usr/share/libubox/jshn.sh
   4
   5 hostsfile_getname()
   6 {
   7         local config="$1"
   8         local i=0
   9         local value file
  10
  11         while value="$( uci -q get $config.@LoadPlugin[$i].library )"; do {
  12                 case "$value" in
  13                         'olsrd_nameservice.so.'*)
  14                                 file="$( uci -q get $config.@LoadPlugin[$i].hosts_file )"
  15                                 break
  16                         ;;
  17                 esac
  18
  19                 i=$(( i + 1 ))
  20         } done
  21
  22         echo "${file:-/var/run/hosts_olsr}"
  23 }
  24
  25 read_hostnames()
  26 {
  27         local file_list=" $( hostsfile_getname 'olsrd' ) $(hostsfile_getname 'olsrd6' ) "
  28         local line ip hostname file file_list_uniq
  29
  30         for file in $file_list; do {
  31                 case " $file_list_uniq " in
  32                         *" $file "*)
  33                         ;;
  34                         *)
  35                                 file_list_uniq="$file_list_uniq $file"
  36                         ;;
  37                 esac
  38         } done
  39
  40         for file in $file_list_uniq; do {
  41                 [ -e "$file" ] || continue
  42
  43                 while read -r line; do {
  44                         case "$line" in
  45                                 [0-9]*)
  46                                         # 2001:bf7:820:901::1 stuttgarter-core.olsr   # myself
  47                                         # 10.63.160.161  AlexLaterne    # 10.63.160.161
  48                                         set -f
  49                                         set +f -- $line
  50                                         ip="$1"
  51                                         hostname="$2"
  52
  53                                         # global vars, e.g.
  54                                         # IP_1_2_3_4='foo' or IP_2001_bf7_820_901__1='bar'
  55                                         eval IP_${ip//[.:]/_}="$hostname"
  56                                 ;;
  57                         esac
  58                 } done <"$file"
  59         } done
  60 }
  61
  62 read_hostnames
  63
  64 VARS='localIP:Local remoteIP:Remote validityTime:vTime linkQuality:LQ'
  65 VARS="$VARS neighborLinkQuality:NLQ linkCost:Cost remoteHostname:Host"
  66
  67 for HOST in '127.0.0.1' '::1';do
  68         json_init
  69         json_load "$( echo /links | nc $HOST 9090 | sed -n '/^[}{ ]/p' )"       # remove header/non-json
  70
  71         if json_is_a links array;then
  72                 json_select links
  73                 for v in ${VARS};do
  74                         eval _${v%:*}=0
  75                 done
  76                 for j in 0 1;do
  77                         case ${j} in 1)
  78                                 for v in ${VARS};do
  79                                         eval printf \"%-\${_${v%:*}}s \" ${v#*:}
  80                                 done
  81                                 echo
  82                         ;;esac
  83                         i=1;while json_is_a ${i} object;do
  84                                 json_select ${i}
  85                                 json_get_vars $(for v in ${VARS};do echo ${v%:*};done)
  86                                 case ${j} in 0)
  87                                         for v in ${VARS};do
  88                                                 eval "test \${_${v%:*}} -lt \${#${v%:*}} && _${v%:*}=\${#${v%:*}}"
  89                                         done
  90                                 ;;*)
  91                                         for v in ${VARS};do
  92                                                 eval printf \"%-\${_${v%:*}}s \" \$${v%:*}
  93                                                 eval remoteHostname="\$IP_${remoteIP//[.:]/_}"
  94                                         done
  95                                         echo
  96                                 ;;esac
  97                                 json_select ..
  98                                 i=$(( i + 1 ))
  99                         done
 100                 done
 101         fi
 102         echo
 103 done