This patch is simply clean-up to make the IPv4 type that is used match
what Linux uses. It also attempts to move all variables that are IP
addresses use good naming instead of CamelCase. No functional change.
Signed-off-by: NJoe Hershberger <joe.hershberger@ni.com>
Acked-by: NSimon Glass <sjg@chromium.org>

This is needed to test the netretry functionality (make the command fail
on a sandbox eth device).
Signed-off-by: NJoe Hershberger <joe.hershberger@ni.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

The sandbox driver will now generate response traffic to exercise the
ping command even when no network exists.  This allows the basic data
pathways of the DM to be tested.
Signed-off-by: NJoe Hershberger <joe.hershberger@ni.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Add basic network support to sandbox which includes a network driver.
Signed-off-by: NJoe Hershberger <joe.hershberger@ni.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>