GRESOPTS
if (ioctl_ctx(ctx, GRESOPTS, &ifr) == -1) {
error = gre_setopts(sc, GRESOPTS, opt);
if (cmd == GRESOPTS)
case GRESOPTS:
else if (cmd == GRESOPTS)
MPASS(cmd == GRESKEY || cmd == GRESOPTS || cmd == GRESPORT);
if (cmd == GRESOPTS &&
case GRESOPTS:
MPASS(cmd == GRESKEY || cmd == GRESOPTS || cmd == GRESPORT);
if (cmd == GRESOPTS &&
case GRESOPTS: