/* * Copyright 2007-2021 The OpenSSL Project Authors. All Rights Reserved. * Copyright Nokia 2007-2019 * Copyright Siemens AG 2015-2019 * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ /* CMP functions for PKIMessage construction */ #include "cmp_local.h" /* explicit #includes not strictly needed since implied by the above: */ #include #include #include #include #include OSSL_CMP_PKIHEADER *OSSL_CMP_MSG_get0_header(const OSSL_CMP_MSG *msg) { if (msg == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT); return NULL; } return msg->header; } const char *ossl_cmp_bodytype_to_string(int type) { static const char *type_names[] = { "IR", "IP", "CR", "CP", "P10CR", "POPDECC", "POPDECR", "KUR", "KUP", "KRR", "KRP", "RR", "RP", "CCR", "CCP", "CKUANN", "CANN", "RANN", "CRLANN", "PKICONF", "NESTED", "GENM", "GENP", "ERROR", "CERTCONF", "POLLREQ", "POLLREP", }; if (type < 0 || type > OSSL_CMP_PKIBODY_TYPE_MAX) return "illegal body type"; return type_names[type]; } int ossl_cmp_msg_set_bodytype(OSSL_CMP_MSG *msg, int type) { if (!ossl_assert(msg != NULL && msg->body != NULL)) return 0; msg->body->type = type; return 1; } int ossl_cmp_msg_get_bodytype(const OSSL_CMP_MSG *msg) { if (!ossl_assert(msg != NULL && msg->body != NULL)) return -1; return msg->body->type; } /* Add an extension to the referenced extension stack, which may be NULL */ static int add1_extension(X509_EXTENSIONS **pexts, int nid, int crit, void *ex) { X509_EXTENSION *ext; int res; if (!ossl_assert(pexts != NULL)) /* pointer to var must not be NULL */ return 0; if ((ext = X509V3_EXT_i2d(nid, crit, ex)) == NULL) return 0; res = X509v3_add_ext(pexts, ext, 0) != NULL; X509_EXTENSION_free(ext); return res; } /* Add extension list to the referenced extension stack, which may be NULL */ static int add_extensions(STACK_OF(X509_EXTENSION) **target, const STACK_OF(X509_EXTENSION) *exts) { int i; if (target == NULL) return 0; for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); ASN1_OBJECT *obj = X509_EXTENSION_get_object(ext); int idx = X509v3_get_ext_by_OBJ(*target, obj, -1); /* Does extension exist in target? */ if (idx != -1) { /* Delete all extensions of same type */ do { X509_EXTENSION_free(sk_X509_EXTENSION_delete(*target, idx)); idx = X509v3_get_ext_by_OBJ(*target, obj, -1); } while (idx != -1); } if (!X509v3_add_ext(target, ext, -1)) return 0; } return 1; } /* Add a CRL revocation reason code to extension stack, which may be NULL */ static int add_crl_reason_extension(X509_EXTENSIONS **pexts, int reason_code) { ASN1_ENUMERATED *val = ASN1_ENUMERATED_new(); int res = 0; if (val != NULL && ASN1_ENUMERATED_set(val, reason_code)) res = add1_extension(pexts, NID_crl_reason, 0 /* non-critical */, val); ASN1_ENUMERATED_free(val); return res; } OSSL_CMP_MSG *ossl_cmp_msg_create(OSSL_CMP_CTX *ctx, int bodytype) { OSSL_CMP_MSG *msg = NULL; if (!ossl_assert(ctx != NULL)) return NULL; if ((msg = OSSL_CMP_MSG_new()) == NULL) return NULL; if (!ossl_cmp_hdr_init(ctx, msg->header) || !ossl_cmp_msg_set_bodytype(msg, bodytype)) goto err; if (ctx->geninfo_ITAVs != NULL && !ossl_cmp_hdr_generalInfo_push1_items(msg->header, ctx->geninfo_ITAVs)) goto err; switch (bodytype) { case OSSL_CMP_PKIBODY_IR: case OSSL_CMP_PKIBODY_CR: case OSSL_CMP_PKIBODY_KUR: if ((msg->body->value.ir = OSSL_CRMF_MSGS_new()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_P10CR: if (ctx->p10CSR == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_P10CSR); goto err; } if ((msg->body->value.p10cr = X509_REQ_dup(ctx->p10CSR)) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_IP: case OSSL_CMP_PKIBODY_CP: case OSSL_CMP_PKIBODY_KUP: if ((msg->body->value.ip = OSSL_CMP_CERTREPMESSAGE_new()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_RR: if ((msg->body->value.rr = sk_OSSL_CMP_REVDETAILS_new_null()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_RP: if ((msg->body->value.rp = OSSL_CMP_REVREPCONTENT_new()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_CERTCONF: if ((msg->body->value.certConf = sk_OSSL_CMP_CERTSTATUS_new_null()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_PKICONF: if ((msg->body->value.pkiconf = ASN1_TYPE_new()) == NULL) goto err; ASN1_TYPE_set(msg->body->value.pkiconf, V_ASN1_NULL, NULL); return msg; case OSSL_CMP_PKIBODY_POLLREQ: if ((msg->body->value.pollReq = sk_OSSL_CMP_POLLREQ_new_null()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_POLLREP: if ((msg->body->value.pollRep = sk_OSSL_CMP_POLLREP_new_null()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_GENM: case OSSL_CMP_PKIBODY_GENP: if ((msg->body->value.genm = sk_OSSL_CMP_ITAV_new_null()) == NULL) goto err; return msg; case OSSL_CMP_PKIBODY_ERROR: if ((msg->body->value.error = OSSL_CMP_ERRORMSGCONTENT_new()) == NULL) goto err; return msg; default: ERR_raise(ERR_LIB_CMP, CMP_R_UNEXPECTED_PKIBODY); goto err; } err: OSSL_CMP_MSG_free(msg); return NULL; } #define HAS_SAN(ctx) \ (sk_GENERAL_NAME_num((ctx)->subjectAltNames) > 0 \ || OSSL_CMP_CTX_reqExtensions_have_SAN(ctx) == 1) static const X509_NAME *determine_subj(OSSL_CMP_CTX *ctx, const X509_NAME *ref_subj, int for_KUR) { if (ctx->subjectName != NULL) return IS_NULL_DN(ctx->subjectName) ? NULL : ctx->subjectName; if (ref_subj != NULL && (for_KUR || !HAS_SAN(ctx))) /* * For KUR, copy subject from the reference. * For IR or CR, do the same only if there is no subjectAltName. */ return ref_subj; return NULL; } OSSL_CRMF_MSG *OSSL_CMP_CTX_setup_CRM(OSSL_CMP_CTX *ctx, int for_KUR, int rid) { OSSL_CRMF_MSG *crm = NULL; X509 *refcert = ctx->oldCert != NULL ? ctx->oldCert : ctx->cert; /* refcert defaults to current client cert */ EVP_PKEY *rkey = OSSL_CMP_CTX_get0_newPkey(ctx, 0); STACK_OF(GENERAL_NAME) *default_sans = NULL; const X509_NAME *ref_subj = ctx->p10CSR != NULL ? X509_REQ_get_subject_name(ctx->p10CSR) : refcert != NULL ? X509_get_subject_name(refcert) : NULL; const X509_NAME *subject = determine_subj(ctx, ref_subj, for_KUR); const X509_NAME *issuer = ctx->issuer != NULL || refcert == NULL ? (IS_NULL_DN(ctx->issuer) ? NULL : ctx->issuer) : X509_get_issuer_name(refcert); int crit = ctx->setSubjectAltNameCritical || subject == NULL; /* RFC5280: subjectAltName MUST be critical if subject is null */ X509_EXTENSIONS *exts = NULL; if (rkey == NULL && ctx->p10CSR != NULL) rkey = X509_REQ_get0_pubkey(ctx->p10CSR); if (rkey == NULL) rkey = ctx->pkey; /* default is independent of ctx->oldCert */ if (rkey == NULL) { #ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT); return NULL; #endif } if (for_KUR && refcert == NULL && ctx->p10CSR == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_REFERENCE_CERT); return NULL; } if ((crm = OSSL_CRMF_MSG_new()) == NULL) return NULL; if (!OSSL_CRMF_MSG_set_certReqId(crm, rid) /* * fill certTemplate, corresponding to CertificationRequestInfo * of PKCS#10. The rkey param cannot be NULL so far - * it could be NULL if centralized key creation was supported */ || !OSSL_CRMF_CERTTEMPLATE_fill(OSSL_CRMF_MSG_get0_tmpl(crm), rkey, subject, issuer, NULL /* serial */)) goto err; if (ctx->days != 0) { time_t now = time(NULL); ASN1_TIME *notBefore = ASN1_TIME_adj(NULL, now, 0, 0); ASN1_TIME *notAfter = ASN1_TIME_adj(NULL, now, ctx->days, 0); if (notBefore == NULL || notAfter == NULL || !OSSL_CRMF_MSG_set0_validity(crm, notBefore, notAfter)) { ASN1_TIME_free(notBefore); ASN1_TIME_free(notAfter); goto err; } } /* extensions */ if (refcert != NULL && !ctx->SubjectAltName_nodefault) default_sans = X509V3_get_d2i(X509_get0_extensions(refcert), NID_subject_alt_name, NULL, NULL); if (ctx->p10CSR != NULL && (exts = X509_REQ_get_extensions(ctx->p10CSR)) == NULL) goto err; if (ctx->reqExtensions != NULL /* augment/override existing ones */ && !add_extensions(&exts, ctx->reqExtensions)) goto err; if (sk_GENERAL_NAME_num(ctx->subjectAltNames) > 0 && !add1_extension(&exts, NID_subject_alt_name, crit, ctx->subjectAltNames)) goto err; if (!HAS_SAN(ctx) && default_sans != NULL && !add1_extension(&exts, NID_subject_alt_name, crit, default_sans)) goto err; if (ctx->policies != NULL && !add1_extension(&exts, NID_certificate_policies, ctx->setPoliciesCritical, ctx->policies)) goto err; if (!OSSL_CRMF_MSG_set0_extensions(crm, exts)) goto err; exts = NULL; /* end fill certTemplate, now set any controls */ /* for KUR, set OldCertId according to D.6 */ if (for_KUR && refcert != NULL) { OSSL_CRMF_CERTID *cid = OSSL_CRMF_CERTID_gen(X509_get_issuer_name(refcert), X509_get0_serialNumber(refcert)); int ret; if (cid == NULL) goto err; ret = OSSL_CRMF_MSG_set1_regCtrl_oldCertID(crm, cid); OSSL_CRMF_CERTID_free(cid); if (ret == 0) goto err; } goto end; err: OSSL_CRMF_MSG_free(crm); crm = NULL; end: sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free); sk_GENERAL_NAME_pop_free(default_sans, GENERAL_NAME_free); return crm; } OSSL_CMP_MSG *ossl_cmp_certreq_new(OSSL_CMP_CTX *ctx, int type, const OSSL_CRMF_MSG *crm) { OSSL_CMP_MSG *msg; OSSL_CRMF_MSG *local_crm = NULL; if (!ossl_assert(ctx != NULL)) return NULL; if (type != OSSL_CMP_PKIBODY_IR && type != OSSL_CMP_PKIBODY_CR && type != OSSL_CMP_PKIBODY_KUR && type != OSSL_CMP_PKIBODY_P10CR) { ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS); return NULL; } if (type == OSSL_CMP_PKIBODY_P10CR && crm != NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS); return NULL; } if ((msg = ossl_cmp_msg_create(ctx, type)) == NULL) goto err; /* header */ if (ctx->implicitConfirm && !ossl_cmp_hdr_set_implicitConfirm(msg->header)) goto err; /* body */ /* For P10CR the content has already been set in OSSL_CMP_MSG_create */ if (type != OSSL_CMP_PKIBODY_P10CR) { EVP_PKEY *privkey = OSSL_CMP_CTX_get0_newPkey(ctx, 1); /* * privkey is NULL in case ctx->newPkey does not include a private key. * We then may try to use ctx->pkey as fallback/default, but only * if ctx-> newPkey does not include a (non-matching) public key: */ if (privkey == NULL && OSSL_CMP_CTX_get0_newPkey(ctx, 0) == NULL) privkey = ctx->pkey; /* default is independent of ctx->oldCert */ if (ctx->popoMethod == OSSL_CRMF_POPO_SIGNATURE && privkey == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_PRIVATE_KEY); goto err; } if (crm == NULL) { local_crm = OSSL_CMP_CTX_setup_CRM(ctx, type == OSSL_CMP_PKIBODY_KUR, OSSL_CMP_CERTREQID); if (local_crm == NULL || !OSSL_CRMF_MSG_create_popo(ctx->popoMethod, local_crm, privkey, ctx->digest, ctx->libctx, ctx->propq)) goto err; } else { if ((local_crm = OSSL_CRMF_MSG_dup(crm)) == NULL) goto err; } /* value.ir is same for cr and kur */ if (!sk_OSSL_CRMF_MSG_push(msg->body->value.ir, local_crm)) goto err; local_crm = NULL; /* TODO: here optional 2nd certreqmsg could be pushed to the stack */ } if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTREQ); OSSL_CRMF_MSG_free(local_crm); OSSL_CMP_MSG_free(msg); return NULL; } OSSL_CMP_MSG *ossl_cmp_certrep_new(OSSL_CMP_CTX *ctx, int bodytype, int certReqId, OSSL_CMP_PKISI *si, X509 *cert, STACK_OF(X509) *chain, STACK_OF(X509) *caPubs, int encrypted, int unprotectedErrors) { OSSL_CMP_MSG *msg = NULL; OSSL_CMP_CERTREPMESSAGE *repMsg = NULL; OSSL_CMP_CERTRESPONSE *resp = NULL; int status = -1; if (!ossl_assert(ctx != NULL && si != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, bodytype)) == NULL) goto err; repMsg = msg->body->value.ip; /* value.ip is same for cp and kup */ /* header */ if (ctx->implicitConfirm && !ossl_cmp_hdr_set_implicitConfirm(msg->header)) goto err; /* body */ if ((resp = OSSL_CMP_CERTRESPONSE_new()) == NULL) goto err; OSSL_CMP_PKISI_free(resp->status); if ((resp->status = OSSL_CMP_PKISI_dup(si)) == NULL || !ASN1_INTEGER_set(resp->certReqId, certReqId)) goto err; status = ossl_cmp_pkisi_get_status(resp->status); if (status != OSSL_CMP_PKISTATUS_rejection && status != OSSL_CMP_PKISTATUS_waiting && cert != NULL) { if (encrypted) { ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS); goto err; } if ((resp->certifiedKeyPair = OSSL_CMP_CERTIFIEDKEYPAIR_new()) == NULL) goto err; resp->certifiedKeyPair->certOrEncCert->type = OSSL_CMP_CERTORENCCERT_CERTIFICATE; if (!X509_up_ref(cert)) goto err; resp->certifiedKeyPair->certOrEncCert->value.certificate = cert; } if (!sk_OSSL_CMP_CERTRESPONSE_push(repMsg->response, resp)) goto err; resp = NULL; /* TODO: here optional 2nd certrep could be pushed to the stack */ if (bodytype == OSSL_CMP_PKIBODY_IP && caPubs != NULL && (repMsg->caPubs = X509_chain_up_ref(caPubs)) == NULL) goto err; if (sk_X509_num(chain) > 0 && !ossl_x509_add_certs_new(&msg->extraCerts, chain, X509_ADD_FLAG_UP_REF | X509_ADD_FLAG_NO_DUP)) goto err; if (!unprotectedErrors || ossl_cmp_pkisi_get_status(si) != OSSL_CMP_PKISTATUS_rejection) if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTREP); OSSL_CMP_CERTRESPONSE_free(resp); OSSL_CMP_MSG_free(msg); return NULL; } OSSL_CMP_MSG *ossl_cmp_rr_new(OSSL_CMP_CTX *ctx) { OSSL_CMP_MSG *msg = NULL; OSSL_CMP_REVDETAILS *rd; int ret; if (!ossl_assert(ctx != NULL && (ctx->oldCert != NULL || ctx->p10CSR != NULL))) return NULL; if ((rd = OSSL_CMP_REVDETAILS_new()) == NULL) goto err; /* Fill the template from the contents of the certificate to be revoked */ ret = ctx->oldCert != NULL ? OSSL_CRMF_CERTTEMPLATE_fill(rd->certDetails, NULL /* pubkey would be redundant */, NULL /* subject would be redundant */, X509_get_issuer_name(ctx->oldCert), X509_get0_serialNumber(ctx->oldCert)) : OSSL_CRMF_CERTTEMPLATE_fill(rd->certDetails, X509_REQ_get0_pubkey(ctx->p10CSR), X509_REQ_get_subject_name(ctx->p10CSR), NULL, NULL); if (!ret) goto err; /* revocation reason code is optional */ if (ctx->revocationReason != CRL_REASON_NONE && !add_crl_reason_extension(&rd->crlEntryDetails, ctx->revocationReason)) goto err; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_RR)) == NULL) goto err; if (!sk_OSSL_CMP_REVDETAILS_push(msg->body->value.rr, rd)) goto err; rd = NULL; /* * TODO: the Revocation Passphrase according to section 5.3.19.9 could be * set here if set in ctx */ if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_RR); OSSL_CMP_MSG_free(msg); OSSL_CMP_REVDETAILS_free(rd); return NULL; } OSSL_CMP_MSG *ossl_cmp_rp_new(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si, OSSL_CRMF_CERTID *cid, int unprot_err) { OSSL_CMP_REVREPCONTENT *rep = NULL; OSSL_CMP_PKISI *si1 = NULL; OSSL_CRMF_CERTID *cid_copy = NULL; OSSL_CMP_MSG *msg = NULL; if (!ossl_assert(ctx != NULL && si != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_RP)) == NULL) goto err; rep = msg->body->value.rp; if ((si1 = OSSL_CMP_PKISI_dup(si)) == NULL) goto err; if (!sk_OSSL_CMP_PKISI_push(rep->status, si1)) { OSSL_CMP_PKISI_free(si1); goto err; } if ((rep->revCerts = sk_OSSL_CRMF_CERTID_new_null()) == NULL) goto err; if (cid != NULL) { if ((cid_copy = OSSL_CRMF_CERTID_dup(cid)) == NULL) goto err; if (!sk_OSSL_CRMF_CERTID_push(rep->revCerts, cid_copy)) { OSSL_CRMF_CERTID_free(cid_copy); goto err; } } if (!unprot_err || ossl_cmp_pkisi_get_status(si) != OSSL_CMP_PKISTATUS_rejection) if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_RP); OSSL_CMP_MSG_free(msg); return NULL; } OSSL_CMP_MSG *ossl_cmp_pkiconf_new(OSSL_CMP_CTX *ctx) { OSSL_CMP_MSG *msg; if (!ossl_assert(ctx != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_PKICONF)) == NULL) goto err; if (ossl_cmp_msg_protect(ctx, msg)) return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_PKICONF); OSSL_CMP_MSG_free(msg); return NULL; } int ossl_cmp_msg_gen_push0_ITAV(OSSL_CMP_MSG *msg, OSSL_CMP_ITAV *itav) { int bodytype; if (!ossl_assert(msg != NULL && itav != NULL)) return 0; bodytype = ossl_cmp_msg_get_bodytype(msg); if (bodytype != OSSL_CMP_PKIBODY_GENM && bodytype != OSSL_CMP_PKIBODY_GENP) { ERR_raise(ERR_LIB_CMP, CMP_R_INVALID_ARGS); return 0; } /* value.genp has the same structure, so this works for genp as well */ return OSSL_CMP_ITAV_push0_stack_item(&msg->body->value.genm, itav); } int ossl_cmp_msg_gen_push1_ITAVs(OSSL_CMP_MSG *msg, const STACK_OF(OSSL_CMP_ITAV) *itavs) { int i; OSSL_CMP_ITAV *itav = NULL; if (!ossl_assert(msg != NULL)) return 0; for (i = 0; i < sk_OSSL_CMP_ITAV_num(itavs); i++) { itav = OSSL_CMP_ITAV_dup(sk_OSSL_CMP_ITAV_value(itavs, i)); if (itav == NULL || !ossl_cmp_msg_gen_push0_ITAV(msg, itav)) { OSSL_CMP_ITAV_free(itav); return 0; } } return 1; } /* * Creates a new General Message/Response with an empty itav stack * returns a pointer to the PKIMessage on success, NULL on error */ static OSSL_CMP_MSG *gen_new(OSSL_CMP_CTX *ctx, const STACK_OF(OSSL_CMP_ITAV) *itavs, int body_type, int err_code) { OSSL_CMP_MSG *msg = NULL; if (!ossl_assert(ctx != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, body_type)) == NULL) return NULL; if (ctx->genm_ITAVs != NULL && !ossl_cmp_msg_gen_push1_ITAVs(msg, itavs)) goto err; if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, err_code); OSSL_CMP_MSG_free(msg); return NULL; } OSSL_CMP_MSG *ossl_cmp_genm_new(OSSL_CMP_CTX *ctx) { return gen_new(ctx, ctx->genm_ITAVs, OSSL_CMP_PKIBODY_GENM, CMP_R_ERROR_CREATING_GENM); } OSSL_CMP_MSG *ossl_cmp_genp_new(OSSL_CMP_CTX *ctx, const STACK_OF(OSSL_CMP_ITAV) *itavs) { return gen_new(ctx, itavs, OSSL_CMP_PKIBODY_GENP, CMP_R_ERROR_CREATING_GENP); } OSSL_CMP_MSG *ossl_cmp_error_new(OSSL_CMP_CTX *ctx, OSSL_CMP_PKISI *si, int errorCode, const char *details, int unprotected) { OSSL_CMP_MSG *msg = NULL; OSSL_CMP_PKIFREETEXT *ft; if (!ossl_assert(ctx != NULL && si != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_ERROR)) == NULL) goto err; OSSL_CMP_PKISI_free(msg->body->value.error->pKIStatusInfo); if ((msg->body->value.error->pKIStatusInfo = OSSL_CMP_PKISI_dup(si)) == NULL) goto err; if (errorCode >= 0) { if ((msg->body->value.error->errorCode = ASN1_INTEGER_new()) == NULL) goto err; if (!ASN1_INTEGER_set(msg->body->value.error->errorCode, errorCode)) goto err; } if (details != NULL) { if ((ft = sk_ASN1_UTF8STRING_new_null()) == NULL) goto err; msg->body->value.error->errorDetails = ft; if (!ossl_cmp_sk_ASN1_UTF8STRING_push_str(ft, details)) goto err; } if (!unprotected && !ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_ERROR); OSSL_CMP_MSG_free(msg); return NULL; } /* * Set the certHash field of a OSSL_CMP_CERTSTATUS structure. * This is used in the certConf message, for example, * to confirm that the certificate was received successfully. */ int ossl_cmp_certstatus_set0_certHash(OSSL_CMP_CERTSTATUS *certStatus, ASN1_OCTET_STRING *hash) { if (!ossl_assert(certStatus != NULL)) return 0; ASN1_OCTET_STRING_free(certStatus->certHash); certStatus->certHash = hash; return 1; } /* * TODO: handle potential 2nd certificate when signing and encrypting * certificates have been requested/received */ OSSL_CMP_MSG *ossl_cmp_certConf_new(OSSL_CMP_CTX *ctx, int fail_info, const char *text) { OSSL_CMP_MSG *msg = NULL; OSSL_CMP_CERTSTATUS *certStatus = NULL; ASN1_OCTET_STRING *certHash = NULL; OSSL_CMP_PKISI *sinfo; if (!ossl_assert(ctx != NULL && ctx->newCert != NULL)) return NULL; if ((unsigned)fail_info > OSSL_CMP_PKIFAILUREINFO_MAX_BIT_PATTERN) { ERR_raise(ERR_LIB_CMP, CMP_R_FAIL_INFO_OUT_OF_RANGE); return NULL; } if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_CERTCONF)) == NULL) goto err; if ((certStatus = OSSL_CMP_CERTSTATUS_new()) == NULL) goto err; /* consume certStatus into msg right away so it gets deallocated with msg */ if (!sk_OSSL_CMP_CERTSTATUS_push(msg->body->value.certConf, certStatus)) goto err; /* set the ID of the certReq */ if (!ASN1_INTEGER_set(certStatus->certReqId, OSSL_CMP_CERTREQID)) goto err; /* * the hash of the certificate, using the same hash algorithm * as is used to create and verify the certificate signature */ if ((certHash = X509_digest_sig(ctx->newCert)) == NULL) goto err; if (!ossl_cmp_certstatus_set0_certHash(certStatus, certHash)) goto err; certHash = NULL; /* * For any particular CertStatus, omission of the statusInfo field * indicates ACCEPTANCE of the specified certificate. Alternatively, * explicit status details (with respect to acceptance or rejection) MAY * be provided in the statusInfo field, perhaps for auditing purposes at * the CA/RA. */ sinfo = fail_info != 0 ? OSSL_CMP_STATUSINFO_new(OSSL_CMP_PKISTATUS_rejection, fail_info, text) : OSSL_CMP_STATUSINFO_new(OSSL_CMP_PKISTATUS_accepted, 0, text); if (sinfo == NULL) goto err; certStatus->statusInfo = sinfo; if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_CERTCONF); OSSL_CMP_MSG_free(msg); ASN1_OCTET_STRING_free(certHash); return NULL; } OSSL_CMP_MSG *ossl_cmp_pollReq_new(OSSL_CMP_CTX *ctx, int crid) { OSSL_CMP_MSG *msg = NULL; OSSL_CMP_POLLREQ *preq = NULL; if (!ossl_assert(ctx != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_POLLREQ)) == NULL) goto err; /* TODO: support multiple cert request IDs to poll */ if ((preq = OSSL_CMP_POLLREQ_new()) == NULL || !ASN1_INTEGER_set(preq->certReqId, crid) || !sk_OSSL_CMP_POLLREQ_push(msg->body->value.pollReq, preq)) goto err; preq = NULL; if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_POLLREQ); OSSL_CMP_POLLREQ_free(preq); OSSL_CMP_MSG_free(msg); return NULL; } OSSL_CMP_MSG *ossl_cmp_pollRep_new(OSSL_CMP_CTX *ctx, int crid, int64_t poll_after) { OSSL_CMP_MSG *msg; OSSL_CMP_POLLREP *prep; if (!ossl_assert(ctx != NULL)) return NULL; if ((msg = ossl_cmp_msg_create(ctx, OSSL_CMP_PKIBODY_POLLREP)) == NULL) goto err; if ((prep = OSSL_CMP_POLLREP_new()) == NULL) goto err; if (!sk_OSSL_CMP_POLLREP_push(msg->body->value.pollRep, prep)) goto err; if (!ASN1_INTEGER_set(prep->certReqId, crid)) goto err; if (!ASN1_INTEGER_set_int64(prep->checkAfter, poll_after)) goto err; if (!ossl_cmp_msg_protect(ctx, msg)) goto err; return msg; err: ERR_raise(ERR_LIB_CMP, CMP_R_ERROR_CREATING_POLLREP); OSSL_CMP_MSG_free(msg); return NULL; } /*- * returns the status field of the RevRepContent with the given * request/sequence id inside a revocation response. * RevRepContent has the revocation statuses in same order as they were sent in * RevReqContent. * returns NULL on error */ OSSL_CMP_PKISI * ossl_cmp_revrepcontent_get_pkisi(OSSL_CMP_REVREPCONTENT *rrep, int rsid) { OSSL_CMP_PKISI *status; if (!ossl_assert(rrep != NULL)) return NULL; if ((status = sk_OSSL_CMP_PKISI_value(rrep->status, rsid)) != NULL) return status; ERR_raise(ERR_LIB_CMP, CMP_R_PKISTATUSINFO_NOT_FOUND); return NULL; } /* * returns the CertId field in the revCerts part of the RevRepContent * with the given request/sequence id inside a revocation response. * RevRepContent has the CertIds in same order as they were sent in * RevReqContent. * returns NULL on error */ OSSL_CRMF_CERTID * ossl_cmp_revrepcontent_get_CertId(OSSL_CMP_REVREPCONTENT *rrep, int rsid) { OSSL_CRMF_CERTID *cid = NULL; if (!ossl_assert(rrep != NULL)) return NULL; if ((cid = sk_OSSL_CRMF_CERTID_value(rrep->revCerts, rsid)) != NULL) return cid; ERR_raise(ERR_LIB_CMP, CMP_R_CERTID_NOT_FOUND); return NULL; } static int suitable_rid(const ASN1_INTEGER *certReqId, int rid) { int trid; if (rid == -1) return 1; trid = ossl_cmp_asn1_get_int(certReqId); if (trid == -1) { ERR_raise(ERR_LIB_CMP, CMP_R_BAD_REQUEST_ID); return 0; } return rid == trid; } /* * returns a pointer to the PollResponse with the given CertReqId * (or the first one in case -1) inside a PollRepContent * returns NULL on error or if no suitable PollResponse available */ OSSL_CMP_POLLREP * ossl_cmp_pollrepcontent_get0_pollrep(const OSSL_CMP_POLLREPCONTENT *prc, int rid) { OSSL_CMP_POLLREP *pollRep = NULL; int i; if (!ossl_assert(prc != NULL)) return NULL; for (i = 0; i < sk_OSSL_CMP_POLLREP_num(prc); i++) { pollRep = sk_OSSL_CMP_POLLREP_value(prc, i); if (suitable_rid(pollRep->certReqId, rid)) return pollRep; } ERR_raise_data(ERR_LIB_CMP, CMP_R_CERTRESPONSE_NOT_FOUND, "expected certReqId = %d", rid); return NULL; } /* * returns a pointer to the CertResponse with the given CertReqId * (or the first one in case -1) inside a CertRepMessage * returns NULL on error or if no suitable CertResponse available */ OSSL_CMP_CERTRESPONSE * ossl_cmp_certrepmessage_get0_certresponse(const OSSL_CMP_CERTREPMESSAGE *crm, int rid) { OSSL_CMP_CERTRESPONSE *crep = NULL; int i; if (!ossl_assert(crm != NULL && crm->response != NULL)) return NULL; for (i = 0; i < sk_OSSL_CMP_CERTRESPONSE_num(crm->response); i++) { crep = sk_OSSL_CMP_CERTRESPONSE_value(crm->response, i); if (suitable_rid(crep->certReqId, rid)) return crep; } ERR_raise_data(ERR_LIB_CMP, CMP_R_CERTRESPONSE_NOT_FOUND, "expected certReqId = %d", rid); return NULL; } /*- * Retrieve the newly enrolled certificate from the given certResponse crep. * In case of indirect POPO uses the libctx and propq from ctx and private key. * Returns a pointer to a copy of the found certificate, or NULL if not found. */ X509 *ossl_cmp_certresponse_get1_cert(const OSSL_CMP_CERTRESPONSE *crep, const OSSL_CMP_CTX *ctx, EVP_PKEY *pkey) { OSSL_CMP_CERTORENCCERT *coec; X509 *crt = NULL; if (!ossl_assert(crep != NULL && ctx != NULL)) return NULL; if (crep->certifiedKeyPair && (coec = crep->certifiedKeyPair->certOrEncCert) != NULL) { switch (coec->type) { case OSSL_CMP_CERTORENCCERT_CERTIFICATE: crt = X509_dup(coec->value.certificate); break; case OSSL_CMP_CERTORENCCERT_ENCRYPTEDCERT: /* cert encrypted for indirect PoP; RFC 4210, 5.2.8.2 */ if (pkey == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_MISSING_PRIVATE_KEY); return NULL; } crt = OSSL_CRMF_ENCRYPTEDVALUE_get1_encCert(coec->value.encryptedCert, ctx->libctx, ctx->propq, pkey); break; default: ERR_raise(ERR_LIB_CMP, CMP_R_UNKNOWN_CERT_TYPE); return NULL; } } if (crt == NULL) ERR_raise(ERR_LIB_CMP, CMP_R_CERTIFICATE_NOT_FOUND); else (void)ossl_x509_set0_libctx(crt, ctx->libctx, ctx->propq); return crt; } int OSSL_CMP_MSG_update_transactionID(OSSL_CMP_CTX *ctx, OSSL_CMP_MSG *msg) { if (ctx == NULL || msg == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT); return 0; } if (!ossl_cmp_hdr_set_transactionID(ctx, msg->header)) return 0; return msg->header->protectionAlg == NULL || ossl_cmp_msg_protect(ctx, msg); } OSSL_CMP_MSG *OSSL_CMP_MSG_read(const char *file) { OSSL_CMP_MSG *msg = NULL; BIO *bio = NULL; if (file == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT); return NULL; } if ((bio = BIO_new_file(file, "rb")) == NULL) return NULL; msg = d2i_OSSL_CMP_MSG_bio(bio, NULL); BIO_free(bio); return msg; } int OSSL_CMP_MSG_write(const char *file, const OSSL_CMP_MSG *msg) { BIO *bio; int res; if (file == NULL || msg == NULL) { ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT); return -1; } bio = BIO_new_file(file, "wb"); if (bio == NULL) return -2; res = i2d_OSSL_CMP_MSG_bio(bio, msg); BIO_free(bio); return res; } OSSL_CMP_MSG *d2i_OSSL_CMP_MSG_bio(BIO *bio, OSSL_CMP_MSG **msg) { return ASN1_d2i_bio_of(OSSL_CMP_MSG, OSSL_CMP_MSG_new, d2i_OSSL_CMP_MSG, bio, msg); } int i2d_OSSL_CMP_MSG_bio(BIO *bio, const OSSL_CMP_MSG *msg) { return ASN1_i2d_bio_of(OSSL_CMP_MSG, i2d_OSSL_CMP_MSG, bio, msg); }