conf: Simplify handling of default forwarding mode

For passt, the default forwarding mode is "none", which falls out naturally
from the other handling: if we don't get any options, we get empty
forwarding tables, which corresponds to "none" behaviour.  However, for
pasta the default is "auto".  This is handled a bit oddly: in conf_ports()
we set the mode variable, but don't set up the rules we need for "auto"
mode.  Instead we want until nearly the end of conf() and if the mode is
FWD_MODE_AUTO or unset, we make conf_ports_range_except() calls to set up
the "auto" rules.

Simplify this a bit, by creating the rules within conf_ports() itself when
we parse -[tuTU] auto.  For the case of no forwarding options we call
into conf_ports() itself with synthetic arguments.  As well as making the
code a little shorter, this makes it more obvious that giving no arguments
really is equivalent to -[tuTU] auto.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

0 files changed, 0 insertions, 0 deletions