sadb_x_replay
struct sadb_x_replay *sreplay = (struct sadb_x_replay *)ext;
i += sizeof(struct sadb_x_replay);
struct sadb_x_replay *sreplay = (struct sadb_x_replay *)*p;
sizeof(struct sadb_x_replay) / sizeof(uint64_t);
*p += sizeof(struct sadb_x_replay);
if (i != sizeof(struct sadb_x_replay)) {