This is Legato's config tree schema:
IPC Binding Configuration Data
system:
    apps
          appName1
              sandboxed (true, false)
              startManual (true, false)
              maxFileSystemBytes (integer)
              maxMQueueBytes (integer)
              maxThreads (integer)
              maxQueuedSignals (integer)
              groups
                  groupName0
                  groupName1
                  ...
                  groupNameN
              files
                 0
                      src (string)
                      dest (string)
                  1
                      src (string)
                      dest (string)
                  ...
                  N
              procs
                  procName1
                      maxCoreDumpFileBytes (integer)
                      maxFileBytes (integer)
                      maxLockedMemoryBytes (integer)
                      maxFileDescriptors (integer)
                  priority (string)
                  faultAction (string)
                  args
                      0 (string) -> must contain the executable path relative to the sandbox root.
                      1 (string)
                      ...
                      N (string)
                  envVars
                      varName0
                          varValue0 (string)
                      varName1
                          varValue1 (string)
                      ...
                      varNameN
                          varValueN (string)
Copyright (C) Sierra Wireless, Inc. 2014. Use of this work is subject to license.