SADB_EXT_LIFETIME_HARD
if (!!ext_hdrs[SADB_EXT_LIFETIME_HARD-1] !=
lifetime = ext_hdrs[SADB_EXT_LIFETIME_HARD - 1];
lifetime->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD;
if ((lifetime = ext_hdrs[SADB_EXT_LIFETIME_HARD-1]) != NULL) {
[SADB_EXT_LIFETIME_HARD] = (u8) sizeof(struct sadb_lifetime),
lifetime->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD;