/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include <sys/errno.h> #include <sys/types.h> #include <sys/kmem.h> #include <sys/sysmacros.h> #include <sys/crypto/common.h> #include <sys/crypto/impl.h> #include <sys/crypto/api.h> #include <sys/crypto/spi.h> #include <sys/crypto/sched_impl.h> #define CRYPTO_OPS_OFFSET(f) offsetof(crypto_ops_t, co_##f) #define CRYPTO_SIGN_OFFSET(f) offsetof(crypto_sign_ops_t, f) /* * Sign entry points. */ /* * See comments for crypto_digest_init_prov(). */ int crypto_sign_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); 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_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_init(crypto_mechanism_t *mech, crypto_key_t *key, crypto_ctx_template_t tmpl, crypto_context_t *ctxp, crypto_call_req_t *crq) { int error; kcf_mech_entry_t *me; kcf_provider_desc_t *pd; 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, CRYPTO_FG_SIGN, CHECK_RESTRICT(crq), 0)) == 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; } } error = crypto_sign_init_prov(pd, pd->pd_sid, mech, key, spi_ctx_tmpl, ctxp, 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); } int crypto_sign_single(crypto_context_t context, crypto_data_t *data, crypto_data_t *signature, 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); } KCF_PROV_REFHOLD(pd); KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_SINGLE, 0, NULL, NULL, data, signature, NULL); error = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); KCF_PROV_REFRELE(pd); /* Release the hold done in kcf_new_ctx() during init step. */ KCF_CONTEXT_COND_RELEASE(error, kcf_ctx); return (error); } /* * See comments for crypto_digest_update(). */ int crypto_sign_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); KCF_PROV_REFHOLD(pd); KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_UPDATE, ctx->cc_session, NULL, NULL, data, NULL, NULL); rv = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); KCF_PROV_REFRELE(pd); return (rv); } /* * See comments for crypto_digest_final(). */ int crypto_sign_final(crypto_context_t context, crypto_data_t *signature, crypto_call_req_t *cr) { crypto_ctx_t *ctx = (crypto_ctx_t *)context; kcf_context_t *kcf_ctx; kcf_provider_desc_t *pd; int rv; 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); KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_FINAL, ctx->cc_session, NULL, NULL, NULL, signature, NULL); rv = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); KCF_PROV_REFRELE(pd); /* Release the hold done in kcf_new_ctx() during init step. */ KCF_CONTEXT_COND_RELEASE(rv, kcf_ctx); return (rv); } int crypto_sign_prov(crypto_provider_t provider, crypto_session_id_t sid, 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) { 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_SIGN_ATOMIC); if (rv != CRYPTO_SUCCESS) return (rv); } KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_ATOMIC, sid, mech, key, data, signature, 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); } 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(¶ms, 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, ¶ms, 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_sign(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) { return (sign_sr_atomic_common(mech, key, data, tmpl, signature, crq, CRYPTO_FG_SIGN_ATOMIC)); } int crypto_sign_recover_prov(crypto_provider_t provider, crypto_session_id_t sid, 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) { 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_SIGN_RECOVER_ATOMIC); if (rv != CRYPTO_SUCCESS) return (rv); } KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_SIGN_RECOVER_ATOMIC, sid, mech, key, data, signature, 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_sign_recover(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) { return (sign_sr_atomic_common(mech, key, data, tmpl, signature, crq, CRYPTO_FG_SIGN_RECOVER_ATOMIC)); } 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_sign_recover_single(crypto_context_t context, crypto_data_t *data, crypto_data_t *signature, 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); } KCF_PROV_REFHOLD(pd); KCF_WRAP_SIGN_OPS_PARAMS(¶ms, KCF_OP_SIGN_RECOVER, 0, NULL, NULL, data, signature, NULL); error = kcf_submit_request(pd, ctx, cr, ¶ms, B_FALSE); KCF_PROV_REFRELE(pd); /* Release the hold done in kcf_new_ctx() during init step. */ KCF_CONTEXT_COND_RELEASE(error, kcf_ctx); return (error); }