IPSEC_LEVEL_REQUIRE 2088 net/key/af_key.c rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_REQUIRE; IPSEC_LEVEL_REQUIRE 3480 net/key/af_key.c (mp->reqid ? IPSEC_LEVEL_UNIQUE : IPSEC_LEVEL_REQUIRE), IPSEC_LEVEL_REQUIRE 3487 net/key/af_key.c (mp->reqid ? IPSEC_LEVEL_UNIQUE : IPSEC_LEVEL_REQUIRE),