aesni_xts_ctx
ses->ses_xts = malloc(sizeof(struct aesni_xts_ctx),
explicit_bzero(ses->ses_xts, sizeof(struct aesni_xts_ctx));
free(ses->ses_xts, M_CRYPTO_DATA, sizeof(struct aesni_xts_ctx));
struct aesni_xts_ctx *ses_xts;
extern void aesni_xts_enc(struct aesni_xts_ctx *xts, uint8_t *dst,
extern void aesni_xts_dec(struct aesni_xts_ctx *xts, uint8_t *dst,