Add CHECK command to NetUtilsWrapper

Extend NetUtilsWrapper to include iptables check command to
provide vendor clients to determine if an iptables rule
was previously added or not.

Bug: 346600032
Change-Id: Id489f99026c3e5c5f9a2b99630f25df3e152100e
1 file changed
tree: 8d9a54c481f6e215e0b4b83373fda9f1c60a30cd
  1. client/
  2. include/
  3. netutils_wrappers/
  4. server/
  5. tests/
  6. .editorconfig
  7. Android.bp
  8. NOTICE
  9. OWNERS
  10. PREUPLOAD.cfg
  11. TEST_MAPPING