Beispiel #1
0
/*
 * crypto_mac_final()
 *
 * Arguments:
 *	context: A crypto_context_t initialized by mac_init().
 *	mac: Storage for the message authentication code.
 *	cr:	crypto_call_req_t calling conditions and call back info.
 *
 * Description:
 *	Asynchronously submits a request for, or synchronously performs a
 *	part of a message authentication operation.
 *
 * Context:
 *	Process or interrupt, according to the semantics dictated by the 'cr'.
 *
 * Returns:
 *	See comment in the beginning of the file.
 */
int
crypto_mac_final(crypto_context_t context, crypto_data_t *mac,
    crypto_call_req_t *cr)
{
	crypto_ctx_t *ctx = (crypto_ctx_t *)context;
	kcf_context_t *kcf_ctx;
	kcf_provider_desc_t *pd;
	kcf_req_params_t params;
	int rv;

	if ((ctx == NULL) ||
	    ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) ||
	    ((pd = kcf_ctx->kc_prov_desc) == NULL)) {
		return (CRYPTO_INVALID_CONTEXT);
	}

	ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(cr, pd)) {
		rv = KCF_PROV_MAC_FINAL(pd, ctx, mac, NULL);
		KCF_PROV_INCRSTATS(pd, rv);
	} else {
		KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_FINAL,
		    ctx->cc_session, NULL, NULL, NULL, mac, NULL);
		rv = kcf_submit_request(pd, ctx, cr, &params, B_FALSE);
	}

	/* Release the hold done in kcf_new_ctx() during init step. */
	KCF_CONTEXT_COND_RELEASE(rv, kcf_ctx);
	return (rv);
}
Beispiel #2
0
/*
 * See comments for crypto_mac_update() and crypto_mac_final().
 */
int
crypto_mac_single(crypto_context_t context, crypto_data_t *data,
    crypto_data_t *mac, crypto_call_req_t *cr)
{
	crypto_ctx_t *ctx = (crypto_ctx_t *)context;
	kcf_context_t *kcf_ctx;
	kcf_provider_desc_t *pd;
	int error;
	kcf_req_params_t params;


	if ((ctx == NULL) ||
	    ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) ||
	    ((pd = kcf_ctx->kc_prov_desc) == NULL)) {
		return (CRYPTO_INVALID_CONTEXT);
	}


	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(cr, pd)) {
		error = KCF_PROV_MAC(pd, ctx, data, mac, NULL);
		KCF_PROV_INCRSTATS(pd, error);
	} else {
		KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_SINGLE, pd->pd_sid,
		    NULL, NULL, data, mac, NULL);
		error = kcf_submit_request(pd, ctx, cr, &params, B_FALSE);
	}

	/* Release the hold done in kcf_new_ctx() during init step. */
	KCF_CONTEXT_COND_RELEASE(error, kcf_ctx);
	return (error);
}
int
crypto_object_find_final(crypto_provider_t provider, 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;

	if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
		rv = kcf_get_hardware_provider_nomech(CRYPTO_OPS_OFFSET(
		    object_ops), CRYPTO_OBJECT_OFFSET(object_find_final),
		    CHECK_RESTRICT(crq), pd, &real_provider);

		if (rv != CRYPTO_SUCCESS)
			return (rv);
	}

	if (CHECK_FASTPATH(crq, real_provider)) {
		rv = KCF_PROV_OBJECT_FIND_FINAL(real_provider,
		    cookie, KCF_SWFP_RHNDL(crq));
		KCF_PROV_INCRSTATS(pd, rv);
	} else {
		KCF_WRAP_OBJECT_OPS_PARAMS(&params, KCF_OP_OBJECT_FIND_FINAL,
		    0, 0, NULL, 0, NULL, 0, NULL, cookie, 0, NULL);
		rv = kcf_submit_request(real_provider, NULL, NULL, &params,
		    B_FALSE);
	}
	if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
		KCF_PROV_REFRELE(real_provider);

	return (rv);
}
Beispiel #4
0
/*
 * crypto_mac_update()
 *
 * Arguments:
 *	context: A crypto_context_t initialized by mac_init().
 *	data: The message part to be MAC'ed
 *	cr:	crypto_call_req_t calling conditions and call back info.
 *
 * Description:
 *	Asynchronously submits a request for, or synchronously performs a
 *	part of a MAC operation.
 *
 * Context:
 *	Process or interrupt, according to the semantics dictated by the 'cr'.
 *
 * Returns:
 *	See comment in the beginning of the file.
 */
int
crypto_mac_update(crypto_context_t context, crypto_data_t *data,
    crypto_call_req_t *cr)
{
	crypto_ctx_t *ctx = (crypto_ctx_t *)context;
	kcf_context_t *kcf_ctx;
	kcf_provider_desc_t *pd;
	kcf_req_params_t params;
	int rv;

	if ((ctx == NULL) ||
	    ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) ||
	    ((pd = kcf_ctx->kc_prov_desc) == NULL)) {
		return (CRYPTO_INVALID_CONTEXT);
	}

	ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(cr, pd)) {
		rv = KCF_PROV_MAC_UPDATE(pd, ctx, data, NULL);
		KCF_PROV_INCRSTATS(pd, rv);
	} else {
		KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_UPDATE,
		    ctx->cc_session, NULL, NULL, data, NULL, NULL);
		rv = kcf_submit_request(pd, ctx, cr, &params, B_FALSE);
	}

	return (rv);
}
Beispiel #5
0
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(&params, KCF_OP_SESSION_LOGOUT,
		    NULL, sid, 0, NULL, 0, real_provider);
		rv = kcf_submit_request(real_provider, NULL, crq,
		    &params, B_FALSE);
	}
	if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
		KCF_PROV_REFRELE(real_provider);

	return (rv);
}
Beispiel #6
0
/*
 * Performs a digest update on the specified key. Note that there is
 * no k-API crypto_digest_key() equivalent of this function.
 */
int
crypto_digest_key_prov(crypto_context_t context, crypto_key_t *key,
    crypto_call_req_t *cr)
{
	crypto_ctx_t *ctx = (crypto_ctx_t *)context;
	kcf_context_t *kcf_ctx;
	kcf_provider_desc_t *pd;
	int error;
	kcf_req_params_t params;

	if ((ctx == NULL) ||
	    ((kcf_ctx = (kcf_context_t *)ctx->cc_framework_private) == NULL) ||
	    ((pd = kcf_ctx->kc_prov_desc) == NULL)) {
		return (CRYPTO_INVALID_CONTEXT);
	}

	ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
	KCF_PROV_REFHOLD(pd);

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(cr, pd)) {
		error = KCF_PROV_DIGEST_KEY(pd, ctx, key, NULL);
		KCF_PROV_INCRSTATS(pd, error);
	} else {
		KCF_WRAP_DIGEST_OPS_PARAMS(&params, KCF_OP_DIGEST_KEY,
		    ctx->cc_session, NULL, key, NULL, NULL);
		error = kcf_submit_request(pd, ctx, cr, &params, B_FALSE);
	}
	KCF_PROV_REFRELE(pd);

	return (error);
}
Beispiel #7
0
/*
 * 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(&params, KCF_OP_INIT, sid, mech, key,
		    NULL, NULL, tmpl);
		rv = kcf_submit_request(real_provider, ctx, crq, &params,
		    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);
}
Beispiel #8
0
/*
 * Same as crypto_digest_prov(), but relies on the KCF scheduler to
 * choose a provider. See crypto_digest_prov() comments for more information.
 */
int
crypto_digest(crypto_mechanism_t *mech, crypto_data_t *data,
    crypto_data_t *digest, crypto_call_req_t *crq)
{
	int error;
	kcf_provider_desc_t *pd;
	kcf_req_params_t params;
	kcf_prov_tried_t *list = NULL;

retry:
	/* The pd is returned held */
	if ((pd = kcf_get_mech_provider(mech->cm_type, NULL, &error, list,
	    CRYPTO_FG_DIGEST_ATOMIC, CHECK_RESTRICT(crq),
	    data->cd_length)) == NULL) {
		if (list != NULL)
			kcf_free_triedlist(list);
		return (error);
	}

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(crq, pd)) {
		crypto_mechanism_t lmech;

		lmech = *mech;
		KCF_SET_PROVIDER_MECHNUM(mech->cm_type, pd, &lmech);
		error = KCF_PROV_DIGEST_ATOMIC(pd, pd->pd_sid, &lmech, data,
		    digest, KCF_SWFP_RHNDL(crq));
		KCF_PROV_INCRSTATS(pd, error);
	} else {
		KCF_WRAP_DIGEST_OPS_PARAMS(&params, KCF_OP_ATOMIC, pd->pd_sid,
		    mech, NULL, data, digest);

		/* no crypto context to carry between multiple parts. */
		error = kcf_submit_request(pd, NULL, crq, &params, B_FALSE);
	}

	if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
	    IS_RECOVERABLE(error)) {
		/* Add pd to the linked list of providers tried. */
		if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL)
			goto retry;
	}

	if (list != NULL)
		kcf_free_triedlist(list);

	KCF_PROV_REFRELE(pd);
	return (error);
}
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(&params, KCF_OP_OBJECT_FIND_INIT,
		    sid, 0, attrs, count, NULL, 0, cookie, NULL, 0, NULL);
		rv = kcf_submit_request(real_provider, NULL, crq,
		    &params, B_FALSE);
	}
	if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
		KCF_PROV_REFRELE(real_provider);

	return (rv);
}
Beispiel #10
0
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(&params,
			    KCF_OP_SESSION_CLOSE, NULL, sid,
			    CRYPTO_USER, NULL, 0, pd);
			rv = kcf_submit_request(real_provider, NULL, crq,
			    &params, B_FALSE);
		}
		KCF_PROV_REFRELE(real_provider);
	}
	return (CRYPTO_SUCCESS);
}
Beispiel #11
0
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(&params,
			    KCF_OP_SESSION_OPEN, sidp, 0, CRYPTO_USER, NULL,
			    0, pd);
			rv = kcf_submit_request(real_provider, NULL, crq,
			    &params, 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(&params,
		    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,
		    &params, B_FALSE);
	}
	if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
		KCF_PROV_REFRELE(real_provider);

	return (rv);
}
Beispiel #13
0
/*
 * Same as crypto_mac_verify_prov(), but relies on the KCF scheduler to choose
 * a provider. See crypto_mac_verify_prov() comments for more information.
 */
int
crypto_mac_verify(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)
{
	int error;
	kcf_mech_entry_t *me;
	kcf_req_params_t params;
	kcf_provider_desc_t *pd;
	kcf_ctx_template_t *ctx_tmpl;
	crypto_spi_ctx_template_t spi_ctx_tmpl = NULL;
	kcf_prov_tried_t *list = NULL;

retry:
	/* The pd is returned held */
	if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
	    list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq),
	    data->cd_length)) == NULL) {
		if (list != NULL)
			kcf_free_triedlist(list);
		return (error);
	}

	/*
	 * For SW providers, check the validity of the context template
	 * It is very rare that the generation number mis-matches, so
	 * is acceptable to fail here, and let the consumer recover by
	 * freeing this tmpl and create a new one for the key and new SW
	 * provider
	 */
	if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
	    ((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
		if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
			if (list != NULL)
				kcf_free_triedlist(list);
			KCF_PROV_REFRELE(pd);
			return (CRYPTO_OLD_CTX_TEMPLATE);
		} else {
			spi_ctx_tmpl = ctx_tmpl->ct_prov_tmpl;
		}
	}

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(crq, pd)) {
		crypto_mechanism_t lmech;

		lmech = *mech;
		KCF_SET_PROVIDER_MECHNUM(mech->cm_type, pd, &lmech);

		error = KCF_PROV_MAC_VERIFY_ATOMIC(pd, pd->pd_sid, &lmech, key,
		    data, mac, spi_ctx_tmpl, KCF_SWFP_RHNDL(crq));
		KCF_PROV_INCRSTATS(pd, error);
	} else {
		if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
		    (pd->pd_flags & CRYPTO_HASH_NO_UPDATE) &&
		    (data->cd_length > pd->pd_hash_limit)) {
			/* see comments in crypto_mac() */
			error = CRYPTO_BUFFER_TOO_BIG;
		} else {
			KCF_WRAP_MAC_OPS_PARAMS(&params,
			    KCF_OP_MAC_VERIFY_ATOMIC, pd->pd_sid, mech,
			    key, data, mac, spi_ctx_tmpl);

			error = kcf_submit_request(pd, NULL, crq, &params,
			    KCF_ISDUALREQ(crq));
		}
	}

	if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
	    IS_RECOVERABLE(error)) {
		/* Add pd to the linked list of providers tried. */
		if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL)
			goto retry;
	}

	if (list != NULL)
		kcf_free_triedlist(list);

	KCF_PROV_REFRELE(pd);
	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
Beispiel #15
0
static int
sign_sr_atomic_common(crypto_mechanism_t *mech, crypto_key_t *key,
    crypto_data_t *data, crypto_ctx_template_t tmpl, crypto_data_t *signature,
    crypto_call_req_t *crq, crypto_func_group_t fg)
{
	int error;
	kcf_mech_entry_t *me;
	kcf_provider_desc_t *pd;
	kcf_req_params_t params;
	kcf_prov_tried_t *list = NULL;
	kcf_ctx_template_t *ctx_tmpl;
	crypto_spi_ctx_template_t spi_ctx_tmpl = NULL;

retry:
	/* The pd is returned held */
	if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error, list, fg,
	    CHECK_RESTRICT(crq), data->cd_length)) == NULL) {
		if (list != NULL)
			kcf_free_triedlist(list);
		return (error);
	}

	/*
	 * For SW providers, check the validity of the context template
	 * It is very rare that the generation number mis-matches, so
	 * it is acceptable to fail here, and let the consumer recover by
	 * freeing this tmpl and create a new one for the key and new SW
	 * provider.
	 */
	if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
	    ((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
		if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
			if (list != NULL)
				kcf_free_triedlist(list);
			KCF_PROV_REFRELE(pd);
			return (CRYPTO_OLD_CTX_TEMPLATE);
		} else {
			spi_ctx_tmpl = ctx_tmpl->ct_prov_tmpl;
		}
	}

	/* The fast path for SW providers. */
	if (CHECK_FASTPATH(crq, pd)) {
		crypto_mechanism_t lmech;

		lmech = *mech;
		KCF_SET_PROVIDER_MECHNUM(mech->cm_type, pd, &lmech);
		if (fg == CRYPTO_FG_SIGN_ATOMIC)
			error = KCF_PROV_SIGN_ATOMIC(pd, pd->pd_sid, &lmech,
			    key, data, spi_ctx_tmpl, signature,
			    KCF_SWFP_RHNDL(crq));
		else
			error = KCF_PROV_SIGN_RECOVER_ATOMIC(pd, pd->pd_sid,
			    &lmech, key, data, spi_ctx_tmpl, signature,
			    KCF_SWFP_RHNDL(crq));
		KCF_PROV_INCRSTATS(pd, error);
	} else {
		kcf_op_type_t op = ((fg == CRYPTO_FG_SIGN_ATOMIC) ?
		    KCF_OP_ATOMIC : KCF_OP_SIGN_RECOVER_ATOMIC);

		KCF_WRAP_SIGN_OPS_PARAMS(&params, op, pd->pd_sid,
		    mech, key, data, signature, spi_ctx_tmpl);

		/* no crypto context to carry between multiple parts. */
		error = kcf_submit_request(pd, NULL, crq, &params, B_FALSE);
	}

	if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
	    IS_RECOVERABLE(error)) {
		/* Add pd to the linked list of providers tried. */
		if (kcf_insert_triedlist(&list, pd, KCF_KMFLAG(crq)) != NULL)
			goto retry;
	}

	if (list != NULL)
		kcf_free_triedlist(list);

	KCF_PROV_REFRELE(pd);
	return (error);
}