tca_verify_action
if (tca_verify_action(action) < 0)
if (tca_verify_action(in_action) < 0
|| tca_verify_action(out_action) < 0)
if (tca_verify_action(green_action) < 0
|| tca_verify_action(yellow_action) < 0
|| tca_verify_action(red_action) < 0)
if (tca_verify_action(green_action) < 0
|| tca_verify_action(yellow_action) < 0
|| tca_verify_action(red_action) < 0)
static int tca_verify_action(struct tc_action *);