static int
aes_crypto_cb(struct cryptop *crp)
{
int error;
struct aes_state *as = (struct aes_state *) crp->crp_opaque;
if (CRYPTO_SESID2CAPS(as->as_session) & CRYPTOCAP_F_SYNC)
return (0);
error = crp->crp_etype;
if (error == EAGAIN)
error = crypto_dispatch(crp);
mtx_lock(&as->as_lock);
if (error || (crp->crp_flags & CRYPTO_F_DONE))
wakeup(crp);
mtx_unlock(&as->as_lock);
return (0);
}
static void
aes_encrypt_1(const struct krb5_key_state *ks, int buftype, void *buf,
size_t skip, size_t len, void *ivec, int encdec)
{
struct aes_state *as = ks->ks_priv;
struct cryptop *crp;
struct cryptodesc *crd;
int error;
crp = crypto_getreq(1);
crd = crp->crp_desc;
crd->crd_skip = skip;
crd->crd_len = len;
crd->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT | encdec;
if (ivec) {
bcopy(ivec, crd->crd_iv, 16);
} else {
bzero(crd->crd_iv, 16);
}
crd->crd_next = NULL;
crd->crd_alg = CRYPTO_AES_CBC;
crp->crp_sid = as->as_session;
crp->crp_flags = buftype | CRYPTO_F_CBIFSYNC;
crp->crp_buf = buf;
crp->crp_opaque = (void *) as;
crp->crp_callback = aes_crypto_cb;
error = crypto_dispatch(crp);
if ((CRYPTO_SESID2CAPS(as->as_session) & CRYPTOCAP_F_SYNC) == 0) {
mtx_lock(&as->as_lock);
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
error = msleep(crp, &as->as_lock, 0, "gssaes", 0);
mtx_unlock(&as->as_lock);
}
crypto_freereq(crp);
}
static void
des3_encrypt_1(const struct krb5_key_state *ks, struct mbuf *inout,
size_t skip, size_t len, void *ivec, int encdec)
{
struct des3_state *ds = ks->ks_priv;
struct cryptop *crp;
struct cryptodesc *crd;
int error;
crp = crypto_getreq(1);
crd = crp->crp_desc;
crd->crd_skip = skip;
crd->crd_len = len;
crd->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT | encdec;
if (ivec) {
bcopy(ivec, crd->crd_iv, 8);
} else {
bzero(crd->crd_iv, 8);
}
crd->crd_next = NULL;
crd->crd_alg = CRYPTO_3DES_CBC;
crp->crp_sid = ds->ds_session;
crp->crp_flags = CRYPTO_F_IMBUF | CRYPTO_F_CBIFSYNC;
crp->crp_buf = (void *) inout;
crp->crp_opaque = (void *) ds;
crp->crp_callback = des3_crypto_cb;
error = crypto_dispatch(crp);
if ((CRYPTO_SESID2CAPS(ds->ds_session) & CRYPTOCAP_F_SYNC) == 0) {
mtx_lock(&ds->ds_lock);
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
error = msleep(crp, &ds->ds_lock, 0, "gssdes3", 0);
mtx_unlock(&ds->ds_lock);
}
crypto_freereq(crp);
}
static void
aes_checksum(const struct krb5_key_state *ks, int usage,
struct mbuf *inout, size_t skip, size_t inlen, size_t outlen)
{
struct aes_state *as = ks->ks_priv;
struct cryptop *crp;
struct cryptodesc *crd;
int error;
crp = crypto_getreq(1);
crd = crp->crp_desc;
crd->crd_skip = skip;
crd->crd_len = inlen;
crd->crd_inject = skip + inlen;
crd->crd_flags = 0;
crd->crd_next = NULL;
crd->crd_alg = CRYPTO_SHA1_HMAC;
crp->crp_sid = as->as_session;
crp->crp_ilen = inlen;
crp->crp_olen = 12;
crp->crp_etype = 0;
crp->crp_flags = CRYPTO_F_IMBUF | CRYPTO_F_CBIFSYNC;
crp->crp_buf = (void *) inout;
crp->crp_opaque = (void *) as;
crp->crp_callback = aes_crypto_cb;
error = crypto_dispatch(crp);
if ((CRYPTO_SESID2CAPS(as->as_session) & CRYPTOCAP_F_SYNC) == 0) {
mtx_lock(&as->as_lock);
if (!error && !(crp->crp_flags & CRYPTO_F_DONE))
error = msleep(crp, &as->as_lock, 0, "gssaes", 0);
mtx_unlock(&as->as_lock);
}
crypto_freereq(crp);
}
