tmpshare.sh

#!/bin/bash -e
if [ $# == 0 ]; then
  echo "Share a directory using smbd"
  echo "USAGE: $0 DIR [ssh user@host] [PORT [PASSWORD [SMBD_FLAGS...]]]"
  exit 1
fi
root=$1
port=${2-445}
ssh=
if [ "$port" == ssh ]; then
  ssh="&"
  target=$3
  if [ -z "$target" ]; then
	echo "Target expected after 'ssh'"
	exit 1
  fi
  shift 2
  # TODO: Can default be a Unix domain socket?
  # Even if that, share would be accessible from remote at $port
  # Mb we should do random password?
  port=${2-4445}
fi  
password=${3-0000}
shift 3 || true
name=$(basename "$root")
user=$(whoami)
tmpdir=/tmp/smb$port
conf=$tmpdir/$user.conf
share_config="
path = $root
# guest ok = yes
writable = yes
force create mode = 774
force user = $user
"
become=
test "$port" -lt 1024 && become=sudo
set -xe
$become rm -fv /tmp/smbd-smb.conf.pid
mkdir -p $tmpdir
$become rm -rfv $tmpdir/*

echo "
[global]
security = user
smbd:backgroundqueue = no
lock dir = $tmpdir
private dir = $tmpdir
pid directory = $tmpdir
state directory = $tmpdir
ncalrpc dir = $tmpdir/ncalrpc
cache directory = $tmpdir/smbdcache
client min protocol = NT1
server min protocol = NT1
bind interfaces only = yes
# interfaces = lo vboxnet0
# unix extensions = no
follow symlinks = yes
map to guest = Bad User
[t]
$share_config
[$name]
$share_config
" > $conf

if [[ "$SAMBASRC" == *4*11* ]]; then
	f="--log-stdout --debuglevel=2"
else
	f="--debug-stdout --debuglevel=2"
fi
if [ "$SAMBASRC" == "" ]; then
  pdbedit=pdbedit
  smbd=smbd
else
  smbd=smbd/smbd
  pdbedit=utils/pdbedit
  cd "$SAMBASRC/bin/default/source3"
fi
echo "$password
$password"| tee /dev/stderr| $pdbedit -D4 -s "$conf" -t -a -u $user 
ulimit -n 2048
# Enable `fg`
set -m
$become $smbd -p $port --foreground --no-process-group $f\
		--configfile="$conf" "$@" &
if [ -n "$ssh" ]; then
  # TODO: uid=$(whoami) should be evaluated on the remote machine
  ${SSH-ssh} -R $port:localhost:$port "$target" -t\
	  "set -x; mkdir -p $name &&"\
	  "sudo mount.cifs //localhost/$name $name -o"\
	  soft,port=$port,user=$user,password=$password',uid=$(whoami) &&'\
	  "bash; sudo umount $name" || true
  echo "Killing smbd..."
  pkill -P $$
  wait
else
  jobs
  fg
fi