GRE_ENABLE_CSUM
DEF_CMD("enable_csum", GRE_ENABLE_CSUM, setifgreopts),
DEF_CMD("-enable_csum",-GRE_ENABLE_CSUM,setifgreopts),
if (sc->gre_options & GRE_ENABLE_CSUM) {
if (sc->gre_options & GRE_ENABLE_CSUM) {
#define GRE_OPTMASK (GRE_ENABLE_CSUM|GRE_ENABLE_SEQ|GRE_UDPENCAP)
snl_add_msg_attr_u32(&nw, IFLA_GRE_FLAGS, (GRE_ENABLE_SEQ | GRE_ENABLE_CSUM));
ATF_CHECK_INTEQ(attrs.ifla_flags, (GRE_ENABLE_SEQ | GRE_ENABLE_CSUM | GRE_UDPENCAP));