First Commit

nettree.sh

@@ -0,0 +1,141 @@
+#!/bin/bash
+
+#
+# https://github.com/AlexStragies/lsnetdev/blob/master/nettree.sh
+#
+
+DIRECTION="UP"
+UTF=""
+TREE=""
+GV=""
+which tree >/dev/null && TREE=1 || UTF=1
+
+function usage() {
+   cat << USAGEEND
+
+The script prints network devices hierarchy as a tree view.
+Possible arguments:
+  -u   prints tree bottom-up (default). Physical devices are roots of the tree.
+  -d   prints tree top-down. Logical devices are roots of the tree.
+  -s X connect to host X via SSH to query information
+  -t   Use 'tree' to print the tree by constructing a tree in TMP (default).
+  -G   Print GraphViz Syntax graph, node and edge definitions.
+  -g   Print GraphViz Syntax node and edge definitions only.
+  -l   use UTF8 characters (default, if 'tree' is not installed).
+
+USAGEEND
+}
+
+function print() {
+   local indent="$1"; shift
+   local firstrun=1; if [ "$1" = "1" ]; then firstrun=0; shift; fi
+   while [ -n "$1" ]; do
+     local D="${1# *}"
+     [ "$firstrun" = 1 -a -n "${devicesup[$D]}" ] && shift && continue; 
+     echo -n "$indent ┗━ $D";
+     if [ -z "${devicesdown[$D]}" ]; then echo ; else
+       echo " ━┓";
+       print "$(echo \ \ $D\ \ \ | sed 's/./ /g')$indent" 1 ${devicesdown[$D]}
+     fi 
+     shift;
+   done
+}
+
+function buildFolderTree() {
+  local firstrun=1; if [ "$1" = 1 ]; then firstrun=0; shift; fi
+  while [ -n "$1" ]; do
+    local D=${1# *}
+    [ "$firstrun" = 1 -a -n "${devicesup[$D]}" ] && shift && continue;
+    mkdir $D
+    if [ -n "${devicesdown[$D]}" ]; then
+      cd $D;
+      for P in ${devicesdown[$D]}; do buildFolderTree 1 "$P";done
+      cd ..
+    fi 
+    shift;
+  done
+}
+
+function addRelation() {
+  local A="$1"
+  local B="$2"
+  local props="$3"
+  [ "$DIRECTION" = "UP" ] && C="$A" && A="$B" && B="$C"
+  conns["\"$A\" -- \"$B\""]="$props"
+  devicesdown[$A]="${devicesdown[$A]} $B"
+  devicesup[$B]="${devicesup[$B]} $A"
+}
+
+while [ ! -z "$1" ]; do
+    case "$1" in
+        -d) DIRECTION=DOWN               ;;
+        -u) DIRECTION=UP                 ;;
+        -t) GV="";GVNE="";TREE=1 ;UTF="" ;;
+        -G) GV=1 ;GVNE=1 ;TREE="";UTF="" ;;
+        -g) GV="";GVNE=1 ;TREE="";UTF="" ;;
+        -l) GV="";GVNE="";TREE="";UTF=1  ;;
+        -s) PFX="ssh -M $2"
+            shift
+            ;;
+        -h) usage ; exit 0               ;;
+         *) usage ; exit 1               ;;
+   esac
+   shift
+done
+
+
+declare -A devices
+declare -A devicesup
+declare -A devicesdown
+declare -A conns
+SCN="/sys/class/net/"
+for CDEV in $($PFX find /sys/class/net/ ! -name lo -type l |sort); do
+  DCLASS="RJ45"
+  NDEV=$(basename $CDEV)
+  devices[$NDEV]=""
+  $PFX readlink $CDEV | grep -q devices/virtual &&   DCLASS="virtual"
+  $PFX [ -e $CDEV/bonding/  ]                   &&   DCLASS="bond"
+  $PFX [ -e $CDEV/phy80211/ ]                   &&   DCLASS="wireless"
+  $PFX [ -e $CDEV/dsa/      ]                   &&   DCLASS="dsa"
+  $PFX [ -e $CDEV/bridge/   ]                   && { DCLASS="bridge"
+    $PFX grep -q 1 $CDEV/bridge/vlan_filtering  &&   DCLASS="switch"
+  }
+  $PFX grep -q 512 $CDEV/type                   && { DCLASS="ppp"
+    PNPP="/proc/net/pppoe"
+    $PFX [ -e $PNPP ] && P=$($PFX cat $PNPP | awk 'NR==2{print $3}')
+    [ -n "$P" ] && $PFX [ -e $SCN/$P ] && {
+      addRelation "$NDEV" "$P" 'label="PPPoE"'
+    }  
+  }
+  for LOW in $($PFX find $CDEV/ -name 'lower_*'); do
+    LOW=${LOW#*_}
+    addRelation "$NDEV" "$LOW" 'label=""' 
+  done 
+  devices[$NDEV]="label=\"${NDEV}\""
+  devices[$NDEV]="${devices[$NDEV]}, class=\"${DCLASS}\""
+done
+
+[ -n "$GV" ] && {
+  echo 'graph iftree {' 
+}
+[ -n "$GVNE" ] && {
+  for iDEV in "${!devices[@]}"; do
+    echo "  \"${iDEV}\"["${devices[$iDEV]}"];"
+  done
+  for conn in "${!conns[@]}"; do
+    echo \ \ $conn[${conns[$conn]}]\;;
+  done
+}
+[ -n "$GV" ] && { echo '}'; }
+
+if [ "$TREE" = "1" ]; then
+  TMPD=$(mktemp -qd)
+  cd $TMPD
+  buildFolderTree "${!devices[@]}";
+  tree --noreport * 
+  find $TMPD -delete
+fi
+if [ "$UTF" = "1" ]; then
+  print "" "${!devices[@]}" | colrm 1 4
+fi
+