smb: backend to support SMB - fixes #2042

fstest/testserver/init.d/TestSMB

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set -e
+
+NAME=smb
+USER=rclone
+PASS=GNF3Cqeu
+WORKGROUP=thepub
+
+. $(dirname "$0")/docker.bash
+
+start() {
+    docker run --rm -d --name $NAME dperson/samba \
+           -p \
+           -u "rclone;${PASS}" \
+           -w "${WORKGROUP}" \
+           -s "public;/share" \
+           -s "rclone;/rclone;yes;no;no;rclone"
+    
+    echo type=smb
+    echo host=$(docker_ip)
+    echo user=$USER
+    echo pass=$(rclone obscure $PASS)
+    echo domain=$WORKGROUP
+    echo _connect=$(docker_ip):139
+}
+
+. $(dirname "$0")/run.bash