auto.smb file from the autofs5 debian package patched with WOL (wake-on-lan) functionality and guest or authed login

auto.smb

#!/bin/bash

# This file must be executable to work! chmod 755!

key="$1"
opts="-fstype=cifs,file_mode=0640,dir_mode=0750"
macaddr=`grep $key /etc/ethers | egrep -v '^#' | cut -d' ' -f1`
max_retries=60
ping_deadline=1 

# Detect credentials.
credentials="/etc/auto.master.d/auth.$key"
if [ -f $credentials ]; then
  opts="$opts,credentials=$credentials"
else
  opts="$opts,sec=none"
fi

# TODO find and use whatever is installed, wakeonlan or etherwake.

# If we have a mac address for the host, wake it up, if necessary.
if [ -n "$macaddr" ]; then
  ping -c 1 -w $ping_deadline -q $key > /dev/null
  status=$?

  if [ $status -ne 0 ]; then
    /usr/bin/wakeonlan $macaddr > /dev/null
    for i in `seq 1 $max_retries`
    do
      ping -c 1 -w $ping_deadline -q $key > /dev/null
      status=$?

      if [ $status -ne 0 ]; then

        if [ $i -eq $max_retries ]; then
          exit 1
        fi

        # no need to sleep as the ping has a timeout anyway
        # sleep 1
      else
        break
      fi

    done
  fi
fi

# Find locations.
for P in /bin /sbin /usr/bin /usr/sbin
do
	if [ -x $P/smbclient ]
	then
		SMBCLIENT=$P/smbclient
		break
	fi
done

[ -x $SMBCLIENT ] || exit 1

$SMBCLIENT -gNL $key 2>/dev/null| awk -v key="$key" -v opts="$opts" -F'|' -- '
	BEGIN	{ ORS=""; first=1 }
	/Disk/	{
		  if (first)
			print opts; first=0
		  dir = $2
		  loc = $2
		  # Enclose mount dir and location in quotes
		  # Double quote "$" in location as it is special
		  gsub(/\$$/, "\\$", loc);
		  gsub(/\&/,"\\\\&",loc)
		  print " \\\n\t \"/" dir "\"", "\"://" key "/" loc "\""
		}
	END 	{ if (!first) print "\n"; else exit 1 }
	'