Built-in Functions

As part of DEW, we provide some built-in functions, which we later expand into runnable code on the testbed during the export process.

Action Bindings

Currently supported built-in functions / suggestions for action bindings are:

Suggestion
tcpdump -i expeth($node) -w $file
ping $node
iperf -s
iperf -c $node
nmap $node
wget $node
dig $name
start_apache
start_bind

Event Bindings

Currently supported built-in functions for event bindings are:

Suggestion	Description
pexists($action)	process exists that performs action in the binding
psuccess($action)	process completed w success for the given action

OS Built-in Functions

We have also provided some built-in functions in Ubuntu-DEW OS image on Deterlab. If you use that image you can use the following built-in functions in your bindings, and we will resolve them automatically.

Built-in function	Description
expIP	experimental IP on the node
ctlIP	control IP on the node
expeth	experimental iface on the node
ctleth	control iface on the node
expIP(A)	experimental IP on the given node, leading
expeth(A)	experimental iface on the given node,
IP(A)	IP address of node A
pid	project name
eid	experiment name
nid	node name
epoch	epoch time