/*
* crypto_mac_prov()
*
* Arguments:
* mech: crypto_mechanism_t pointer.
* mech_type is a valid value previously returned by
* crypto_mech2id();
* When the mech's parameter is not NULL, its definition depends
* on the standard definition of the mechanism.
* key: pointer to a crypto_key_t structure.
* data: The message to compute the MAC for.
* mac: Storage for the MAC. The length needed depends on the mechanism.
* tmpl: a crypto_ctx_template_t, opaque template of a context of a
* MAC with the 'mech' using 'key'. 'tmpl' is created by
* a previous call to crypto_create_ctx_template().
* cr: crypto_call_req_t calling conditions and call back info.
*
* Description:
* Asynchronously submits a request for, or synchronously performs a
* single-part message authentication of 'data' with the mechanism
* 'mech', using * the key 'key', on the specified provider with
* the specified session id.
* When complete and successful, 'mac' will contain the message
* authentication code.
*
* Context:
* Process or interrupt, according to the semantics dictated by the 'crq'.
*
* Returns:
* See comment in the beginning of the file.
*/
int
crypto_mac_prov(crypto_provider_t provider, crypto_session_id_t sid,
crypto_mechanism_t *mech, crypto_data_t *data, crypto_key_t *key,
crypto_ctx_template_t tmpl, crypto_data_t *mac, crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_MAC_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_ATOMIC, sid, mech, key,
data, mac, tmpl);
rv = kcf_submit_request(real_provider, NULL, crq, ¶ms, B_FALSE);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
int
crypto_session_logout(crypto_provider_t provider, crypto_session_id_t sid,
crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(
session_ops), CRYPTO_SESSION_OFFSET(session_logout),
pd, &real_provider);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
if (CHECK_FASTPATH(crq, real_provider)) {
rv = KCF_PROV_SESSION_LOGOUT(real_provider, sid,
KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_SESSION_OPS_PARAMS(¶ms, KCF_OP_SESSION_LOGOUT,
NULL, sid, 0, NULL, 0, real_provider);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
/*
* crypto_digest_prov()
*
* Arguments:
* pd: pointer to the descriptor of the provider to use for this
* operation.
* sid: provider session id.
* mech: crypto_mechanism_t pointer.
* mech_type is a valid value previously returned by
* crypto_mech2id();
* When the mech's parameter is not NULL, its definition depends
* on the standard definition of the mechanism.
* data: The message to be digested.
* digest: Storage for the digest. The length needed depends on the
* mechanism.
* cr: crypto_call_req_t calling conditions and call back info.
*
* Description:
* Asynchronously submits a request for, or synchronously performs the
* digesting operation of 'data' on the specified
* provider with the specified session.
* When complete and successful, 'digest' will contain the digest value.
* The caller should hold a reference on the specified provider
* descriptor before calling this function.
*
* Context:
* Process or interrupt, according to the semantics dictated by the 'cr'.
*
* Returns:
* See comment in the beginning of the file.
*/
int
crypto_digest_prov(crypto_provider_t provider, crypto_session_id_t sid,
crypto_mechanism_t *mech, crypto_data_t *data, crypto_data_t *digest,
crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq),
pd, &real_provider, CRYPTO_FG_DIGEST_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_DIGEST_OPS_PARAMS(¶ms, KCF_OP_ATOMIC, sid, mech, NULL,
data, digest);
/* no crypto context to carry between multiple parts. */
rv = kcf_submit_request(real_provider, NULL, crq, ¶ms, B_FALSE);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
/*
* crypto_mac_init_prov()
*
* Arguments:
* pd: pointer to the descriptor of the provider to use for this
* operation.
* sid: provider session id.
* mech: crypto_mechanism_t pointer.
* mech_type is a valid value previously returned by
* crypto_mech2id();
* When the mech's parameter is not NULL, its definition depends
* on the standard definition of the mechanism.
* key: pointer to a crypto_key_t structure.
* tmpl: a crypto_ctx_template_t, opaque template of a context of a
* MAC with the 'mech' using 'key'. 'tmpl' is created by
* a previous call to crypto_create_ctx_template().
* ctxp: Pointer to a crypto_context_t.
* cr: crypto_call_req_t calling conditions and call back info.
*
* Description:
* Asynchronously submits a request for, or synchronously performs the
* initialization of a MAC operation on the specified provider with
* the specified session.
* When possible and applicable, will internally use the pre-computed MAC
* context from the context template, tmpl.
* When complete and successful, 'ctxp' will contain a crypto_context_t
* valid for later calls to mac_update() and mac_final().
* The caller should hold a reference on the specified provider
* descriptor before calling this function.
*
* Context:
* Process or interrupt, according to the semantics dictated by the 'cr'.
*
* Returns:
* See comment in the beginning of the file.
*/
int
crypto_mac_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
crypto_mechanism_t *mech, crypto_key_t *key, crypto_spi_ctx_template_t tmpl,
crypto_context_t *ctxp, crypto_call_req_t *crq)
{
int rv;
crypto_ctx_t *ctx;
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_MAC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (CRYPTO_HOST_MEMORY);
}
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
crypto_mechanism_t lmech;
lmech = *mech;
KCF_SET_PROVIDER_MECHNUM(mech->cm_type, real_provider, &lmech);
rv = KCF_PROV_MAC_INIT(real_provider, ctx, &lmech, key, tmpl,
KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_MAC_OPS_PARAMS(¶ms, KCF_OP_INIT, sid, mech, key,
NULL, NULL, tmpl);
rv = kcf_submit_request(real_provider, ctx, crq, ¶ms,
B_FALSE);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((rv == CRYPTO_SUCCESS) || (rv == CRYPTO_QUEUED))
*ctxp = (crypto_context_t)ctx;
else {
/* Release the hold done in kcf_new_ctx(). */
KCF_CONTEXT_REFRELE((kcf_context_t *)ctx->cc_framework_private);
}
return (rv);
}
int
crypto_sign_recover_init_prov(crypto_provider_t provider,
crypto_session_id_t sid, crypto_mechanism_t *mech, crypto_key_t *key,
crypto_ctx_template_t tmpl, crypto_context_t *ctxp, crypto_call_req_t *crq)
{
int rv;
crypto_ctx_t *ctx;
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_SIGN_RECOVER);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (CRYPTO_HOST_MEMORY);
}
KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_SIGN_RECOVER_INIT, sid, mech,
key, NULL, NULL, tmpl);
rv = kcf_submit_request(real_provider, ctx, crq, ¶ms, B_FALSE);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((rv == CRYPTO_SUCCESS) || (rv == CRYPTO_QUEUED))
*ctxp = (crypto_context_t)ctx;
else {
/* Release the hold done in kcf_new_ctx(). */
KCF_CONTEXT_REFRELE((kcf_context_t *)ctx->cc_framework_private);
}
return (rv);
}
int
crypto_object_find_init(crypto_provider_t provider, crypto_session_id_t sid,
crypto_object_attribute_t *attrs, uint_t count, void **cookie,
crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (cookie == NULL) {
return (CRYPTO_ARGUMENTS_BAD);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(
object_ops), CRYPTO_OBJECT_OFFSET(object_find_init),
CHECK_RESTRICT(crq), pd, &real_provider);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
if (CHECK_FASTPATH(crq, real_provider)) {
rv = KCF_PROV_OBJECT_FIND_INIT(real_provider,
sid, attrs, count, cookie, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_OBJECT_OPS_PARAMS(¶ms, KCF_OP_OBJECT_FIND_INIT,
sid, 0, attrs, count, NULL, 0, cookie, NULL, 0, NULL);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
int
crypto_session_close(crypto_provider_t provider, crypto_session_id_t sid,
crypto_call_req_t *crq)
{
int rv;
kcf_req_params_t params;
kcf_provider_desc_t *real_provider;
kcf_provider_desc_t *pd = provider;
if (pd == NULL)
return (CRYPTO_ARGUMENTS_BAD);
ASSERT(KCF_PROV_REFHELD(pd));
/* find a provider that supports session ops */
(void) kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(session_ops),
CRYPTO_SESSION_OFFSET(session_close), pd, &real_provider);
ASSERT(real_provider == pd ||
pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER);
/* edge case is where the logical provider has no members */
if (real_provider != NULL) {
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
rv = KCF_PROV_SESSION_CLOSE(real_provider,
sid, KCF_SWFP_RHNDL(crq), pd);
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_SESSION_OPS_PARAMS(¶ms,
KCF_OP_SESSION_CLOSE, NULL, sid,
CRYPTO_USER, NULL, 0, pd);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
KCF_PROV_REFRELE(real_provider);
}
return (CRYPTO_SUCCESS);
}
int
crypto_session_open(crypto_provider_t provider, crypto_session_id_t *sidp,
crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *real_provider;
kcf_provider_desc_t *pd = provider;
ASSERT(KCF_PROV_REFHELD(pd));
/* find a provider that supports session ops */
(void) kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(session_ops),
CRYPTO_SESSION_OFFSET(session_open), pd, &real_provider);
if (real_provider != NULL) {
int rv;
ASSERT(real_provider == pd ||
pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER);
if (CHECK_FASTPATH(crq, pd)) {
rv = KCF_PROV_SESSION_OPEN(real_provider, sidp,
KCF_SWFP_RHNDL(crq), pd);
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_SESSION_OPS_PARAMS(¶ms,
KCF_OP_SESSION_OPEN, sidp, 0, CRYPTO_USER, NULL,
0, pd);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
KCF_PROV_REFRELE(real_provider);
if (rv != CRYPTO_SUCCESS) {
return (rv);
}
}
return (CRYPTO_SUCCESS);
}
int
crypto_object_set_attribute_value(crypto_provider_t provider,
crypto_session_id_t sid, crypto_object_id_t object_handle,
crypto_object_attribute_t *attrs, uint_t count, crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(
object_ops),
CRYPTO_OBJECT_OFFSET(object_set_attribute_value),
CHECK_RESTRICT(crq), pd, &real_provider);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
if (CHECK_FASTPATH(crq, real_provider)) {
rv = KCF_PROV_OBJECT_SET_ATTRIBUTE_VALUE(real_provider,
sid, object_handle, attrs, count, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_OBJECT_OPS_PARAMS(¶ms,
KCF_OP_OBJECT_SET_ATTRIBUTE_VALUE, sid, object_handle,
attrs, count, NULL, 0, NULL, NULL, 0, NULL);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
int
crypto_object_find(crypto_provider_t provider, void *cookie,
crypto_object_id_t *handles, uint_t *count, uint_t max_count,
crypto_call_req_t *crq)
{
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(
object_ops), CRYPTO_OBJECT_OFFSET(object_find),
CHECK_RESTRICT(crq), pd, &real_provider);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
if (CHECK_FASTPATH(crq, real_provider)) {
rv = KCF_PROV_OBJECT_FIND(real_provider, cookie, handles,
max_count, count, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, rv);
} else {
KCF_WRAP_OBJECT_OPS_PARAMS(¶ms, KCF_OP_OBJECT_FIND, 0,
0, NULL, 0, handles, 0, NULL, cookie, max_count, count);
rv = kcf_submit_request(real_provider, NULL, crq,
¶ms, B_FALSE);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
/*
* Routine called by both ioctl and k-api. The consumer should
* bundle the parameters into a kcf_req_params_t structure. A bunch
* of macros are available in ops_impl.h for this bundling. They are:
*
* KCF_WRAP_DIGEST_OPS_PARAMS()
* KCF_WRAP_MAC_OPS_PARAMS()
* KCF_WRAP_ENCRYPT_OPS_PARAMS()
* KCF_WRAP_DECRYPT_OPS_PARAMS() ... etc.
*
* It is the caller's responsibility to free the ctx argument when
* appropriate. See the KCF_CONTEXT_COND_RELEASE macro for details.
*/
int
kcf_submit_request(kcf_provider_desc_t *pd, crypto_ctx_t *ctx,
crypto_call_req_t *crq, kcf_req_params_t *params, boolean_t cont)
{
int error = CRYPTO_SUCCESS;
kcf_areq_node_t *areq;
kcf_sreq_node_t *sreq;
kcf_context_t *kcf_ctx;
taskq_t *taskq = pd->pd_sched_info.ks_taskq;
kcf_ctx = ctx ? (kcf_context_t *)ctx->cc_framework_private : NULL;
/* Synchronous cases */
if (crq == NULL) {
switch (pd->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
error = common_submit_request(pd, ctx, params,
KCF_RHNDL(KM_SLEEP));
break;
case CRYPTO_HW_PROVIDER:
/*
* Special case for CRYPTO_SYNCHRONOUS providers that
* never return a CRYPTO_QUEUED error. We skip any
* request allocation and call the SPI directly.
*/
if ((pd->pd_flags & CRYPTO_SYNCHRONOUS) &&
EMPTY_TASKQ(taskq)) {
KCF_PROV_IREFHOLD(pd);
if (pd->pd_state == KCF_PROV_READY) {
error = common_submit_request(pd, ctx,
params, KCF_RHNDL(KM_SLEEP));
KCF_PROV_IREFRELE(pd);
ASSERT(error != CRYPTO_QUEUED);
break;
}
KCF_PROV_IREFRELE(pd);
}
sreq = kmem_cache_alloc(kcf_sreq_cache, KM_SLEEP);
sreq->sn_state = REQ_ALLOCATED;
sreq->sn_rv = CRYPTO_FAILED;
sreq->sn_params = params;
/*
* Note that we do not need to hold the context
* for synchronous case as the context will never
* become invalid underneath us. We do not need to hold
* the provider here either as the caller has a hold.
*/
sreq->sn_context = kcf_ctx;
ASSERT(KCF_PROV_REFHELD(pd));
sreq->sn_provider = pd;
ASSERT(taskq != NULL);
/*
* Call the SPI directly if the taskq is empty and the
* provider is not busy, else dispatch to the taskq.
* Calling directly is fine as this is the synchronous
* case. This is unlike the asynchronous case where we
* must always dispatch to the taskq.
*/
if (EMPTY_TASKQ(taskq) &&
pd->pd_state == KCF_PROV_READY) {
process_req_hwp(sreq);
} else {
/*
* We can not tell from taskq_dispatch() return
* value if we exceeded maxalloc. Hence the
* check here. Since we are allowed to wait in
* the synchronous case, we wait for the taskq
* to become empty.
*/
if (taskq->tq_nalloc >= crypto_taskq_maxalloc) {
taskq_wait(taskq);
}
(void) taskq_dispatch(taskq, process_req_hwp,
sreq, TQ_SLEEP);
}
/*
* Wait for the notification to arrive,
* if the operation is not done yet.
* Bug# 4722589 will make the wait a cv_wait_sig().
*/
mutex_enter(&sreq->sn_lock);
while (sreq->sn_state < REQ_DONE)
cv_wait(&sreq->sn_cv, &sreq->sn_lock);
mutex_exit(&sreq->sn_lock);
error = sreq->sn_rv;
kmem_cache_free(kcf_sreq_cache, sreq);
break;
default:
error = CRYPTO_FAILED;
break;
}
} else { /* Asynchronous cases */
switch (pd->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
if (!(crq->cr_flag & CRYPTO_ALWAYS_QUEUE)) {
/*
* This case has less overhead since there is
* no switching of context.
*/
error = common_submit_request(pd, ctx, params,
KCF_RHNDL(KM_NOSLEEP));
} else {
/*
* CRYPTO_ALWAYS_QUEUE is set. We need to
* queue the request and return.
*/
areq = kcf_areqnode_alloc(pd, kcf_ctx, crq,
params, cont);
if (areq == NULL)
error = CRYPTO_HOST_MEMORY;
else {
if (!(crq->cr_flag
& CRYPTO_SKIP_REQID)) {
/*
* Set the request handle. This handle
* is used for any crypto_cancel_req(9f)
* calls from the consumer. We have to
* do this before dispatching the
* request.
*/
crq->cr_reqid = kcf_reqid_insert(areq);
}
error = kcf_disp_sw_request(areq);
/*
* There is an error processing this
* request. Remove the handle and
* release the request structure.
*/
if (error != CRYPTO_QUEUED) {
if (!(crq->cr_flag
& CRYPTO_SKIP_REQID))
kcf_reqid_delete(areq);
KCF_AREQ_REFRELE(areq);
}
}
}
break;
case CRYPTO_HW_PROVIDER:
/*
* We need to queue the request and return.
*/
areq = kcf_areqnode_alloc(pd, kcf_ctx, crq, params,
cont);
if (areq == NULL) {
error = CRYPTO_HOST_MEMORY;
goto done;
}
ASSERT(taskq != NULL);
/*
* We can not tell from taskq_dispatch() return
* value if we exceeded maxalloc. Hence the check
* here.
*/
if (taskq->tq_nalloc >= crypto_taskq_maxalloc) {
error = CRYPTO_BUSY;
KCF_AREQ_REFRELE(areq);
goto done;
}
if (!(crq->cr_flag & CRYPTO_SKIP_REQID)) {
/*
* Set the request handle. This handle is used
* for any crypto_cancel_req(9f) calls from the
* consumer. We have to do this before dispatching
* the request.
*/
crq->cr_reqid = kcf_reqid_insert(areq);
}
if (taskq_dispatch(taskq,
process_req_hwp, areq, TQ_NOSLEEP) ==
TASKQID_INVALID) {
error = CRYPTO_HOST_MEMORY;
if (!(crq->cr_flag & CRYPTO_SKIP_REQID))
kcf_reqid_delete(areq);
KCF_AREQ_REFRELE(areq);
} else {
error = CRYPTO_QUEUED;
}
break;
default:
error = CRYPTO_FAILED;
break;
}
}
done:
return (error);
}
/*
* crypto_cipher_init_prov()
*
* Arguments:
*
* pd: provider descriptor
* sid: session id
* mech: crypto_mechanism_t pointer.
* mech_type is a valid value previously returned by
* crypto_mech2id();
* When the mech's parameter is not NULL, its definition depends
* on the standard definition of the mechanism.
* key: pointer to a crypto_key_t structure.
* tmpl: a crypto_ctx_template_t, opaque template of a context of an
* encryption or decryption with the 'mech' using 'key'.
* 'tmpl' is created by a previous call to
* crypto_create_ctx_template().
* ctxp: Pointer to a crypto_context_t.
* func: CRYPTO_FG_ENCRYPT or CRYPTO_FG_DECRYPT.
* cr: crypto_call_req_t calling conditions and call back info.
*
* Description:
* This is a common function invoked internally by both
* crypto_encrypt_init() and crypto_decrypt_init().
* Asynchronously submits a request for, or synchronously performs the
* initialization of an encryption or a decryption operation.
* When possible and applicable, will internally use the pre-expanded key
* schedule from the context template, tmpl.
* When complete and successful, 'ctxp' will contain a crypto_context_t
* valid for later calls to encrypt_update() and encrypt_final(), or
* decrypt_update() and decrypt_final().
* The caller should hold a reference on the specified provider
* descriptor before calling this function.
*
* Context:
* Process or interrupt, according to the semantics dictated by the 'cr'.
*
* Returns:
* See comment in the beginning of the file.
*/
static int
crypto_cipher_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
crypto_mechanism_t *mech, crypto_key_t *key,
crypto_spi_ctx_template_t tmpl, crypto_context_t *ctxp,
crypto_call_req_t *crq, crypto_func_group_t func)
{
int error;
crypto_ctx_t *ctx;
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
if (func == CRYPTO_FG_ENCRYPT) {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_ENCRYPT);
} else {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_DECRYPT);
}
if (error != CRYPTO_SUCCESS)
return (error);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (CRYPTO_HOST_MEMORY);
}
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
crypto_mechanism_t lmech;
lmech = *mech;
KCF_SET_PROVIDER_MECHNUM(mech->cm_type, real_provider, &lmech);
if (func == CRYPTO_FG_ENCRYPT)
error = KCF_PROV_ENCRYPT_INIT(real_provider, ctx,
&lmech, key, tmpl, KCF_SWFP_RHNDL(crq));
else {
ASSERT(func == CRYPTO_FG_DECRYPT);
error = KCF_PROV_DECRYPT_INIT(real_provider, ctx,
&lmech, key, tmpl, KCF_SWFP_RHNDL(crq));
}
KCF_PROV_INCRSTATS(pd, error);
goto done;
}
/* Check if context sharing is possible */
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
key->ck_format == CRYPTO_KEY_RAW &&
KCF_CAN_SHARE_OPSTATE(pd, mech->cm_type)) {
kcf_context_t *tctxp = (kcf_context_t *)ctx;
kcf_provider_desc_t *tpd = NULL;
crypto_mech_info_t *sinfo;
if ((kcf_get_sw_prov(mech->cm_type, &tpd, &tctxp->kc_mech,
B_FALSE) == CRYPTO_SUCCESS)) {
int tlen;
sinfo = &(KCF_TO_PROV_MECHINFO(tpd, mech->cm_type));
/*
* key->ck_length from the consumer is always in bits.
* We convert it to be in the same unit registered by
* the provider in order to do a comparison.
*/
if (sinfo->cm_mech_flags & CRYPTO_KEYSIZE_UNIT_IN_BYTES)
tlen = key->ck_length >> 3;
else
