| // Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <openssl/asn1.h> |
| #include <openssl/asn1t.h> |
| #include <openssl/conf.h> |
| #include <openssl/err.h> |
| #include <openssl/mem.h> |
| #include <openssl/obj.h> |
| #include <openssl/stack.h> |
| #include <openssl/x509.h> |
| |
| #include "internal.h" |
| |
| // Certificate policies extension support: this one is a bit complex... |
| |
| static int i2r_certpol(const X509V3_EXT_METHOD *method, void *ext, BIO *out, |
| int indent); |
| static void *r2i_certpol(const X509V3_EXT_METHOD *method, const X509V3_CTX *ctx, |
| const char *value); |
| static void print_qualifiers(BIO *out, const STACK_OF(POLICYQUALINFO) *quals, |
| int indent); |
| static void print_notice(BIO *out, const USERNOTICE *notice, int indent); |
| static POLICYINFO *policy_section(const X509V3_CTX *ctx, |
| const STACK_OF(CONF_VALUE) *polstrs, |
| int ia5org); |
| static POLICYQUALINFO *notice_section(const X509V3_CTX *ctx, |
| const STACK_OF(CONF_VALUE) *unot, |
| int ia5org); |
| static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, |
| const STACK_OF(CONF_VALUE) *nos); |
| |
| const X509V3_EXT_METHOD v3_cpols = { |
| NID_certificate_policies, |
| 0, |
| ASN1_ITEM_ref(CERTIFICATEPOLICIES), |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| nullptr, |
| i2r_certpol, |
| r2i_certpol, |
| nullptr, |
| }; |
| |
| DECLARE_ASN1_ITEM(POLICYINFO) |
| DECLARE_ASN1_ITEM(POLICYQUALINFO) |
| DECLARE_ASN1_ITEM(USERNOTICE) |
| DECLARE_ASN1_ITEM(NOTICEREF) |
| |
| ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) = ASN1_EX_TEMPLATE_TYPE( |
| ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO) |
| ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES) |
| |
| IMPLEMENT_ASN1_FUNCTIONS_const(CERTIFICATEPOLICIES) |
| |
| ASN1_SEQUENCE(POLICYINFO) = { |
| ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT), |
| ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO), |
| } ASN1_SEQUENCE_END(POLICYINFO) |
| |
| IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICYINFO) |
| |
| ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, |
| ASN1_ANY); |
| |
| ASN1_ADB(POLICYQUALINFO) = { |
| ADB_ENTRY(NID_id_qt_cps, |
| ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)), |
| ADB_ENTRY(NID_id_qt_unotice, |
| ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE)), |
| } ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL); |
| |
| ASN1_SEQUENCE(POLICYQUALINFO) = { |
| ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT), |
| ASN1_ADB_OBJECT(POLICYQUALINFO), |
| } ASN1_SEQUENCE_END(POLICYQUALINFO) |
| |
| IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICYQUALINFO) |
| |
| ASN1_SEQUENCE(USERNOTICE) = { |
| ASN1_OPT(USERNOTICE, noticeref, NOTICEREF), |
| ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT), |
| } ASN1_SEQUENCE_END(USERNOTICE) |
| |
| IMPLEMENT_ASN1_ALLOC_FUNCTIONS(USERNOTICE) |
| |
| ASN1_SEQUENCE(NOTICEREF) = { |
| ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT), |
| ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER), |
| } ASN1_SEQUENCE_END(NOTICEREF) |
| |
| IMPLEMENT_ASN1_ALLOC_FUNCTIONS(NOTICEREF) |
| |
| static void *r2i_certpol(const X509V3_EXT_METHOD *method, const X509V3_CTX *ctx, |
| const char *value) { |
| STACK_OF(POLICYINFO) *pols = sk_POLICYINFO_new_null(); |
| if (pols == nullptr) { |
| return nullptr; |
| } |
| STACK_OF(CONF_VALUE) *vals = X509V3_parse_list(value); |
| |
| { |
| if (vals == nullptr) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_X509V3_LIB); |
| goto err; |
| } |
| int ia5org = 0; |
| for (size_t i = 0; i < sk_CONF_VALUE_num(vals); i++) { |
| const CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i); |
| if (cnf->value || !cnf->name) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_POLICY_IDENTIFIER); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| POLICYINFO *pol; |
| const char *pstr = cnf->name; |
| if (!strcmp(pstr, "ia5org")) { |
| ia5org = 1; |
| continue; |
| } else if (*pstr == '@') { |
| const STACK_OF(CONF_VALUE) *polsect = X509V3_get_section(ctx, pstr + 1); |
| if (!polsect) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION); |
| |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| pol = policy_section(ctx, polsect, ia5org); |
| if (!pol) { |
| goto err; |
| } |
| } else { |
| ASN1_OBJECT *pobj = OBJ_txt2obj(cnf->name, 0); |
| if (pobj == nullptr) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| pol = POLICYINFO_new(); |
| if (pol == nullptr) { |
| ASN1_OBJECT_free(pobj); |
| goto err; |
| } |
| pol->policyid = pobj; |
| } |
| if (!sk_POLICYINFO_push(pols, pol)) { |
| POLICYINFO_free(pol); |
| goto err; |
| } |
| } |
| sk_CONF_VALUE_pop_free(vals, X509V3_conf_free); |
| return pols; |
| } |
| |
| err: |
| sk_CONF_VALUE_pop_free(vals, X509V3_conf_free); |
| sk_POLICYINFO_pop_free(pols, POLICYINFO_free); |
| return nullptr; |
| } |
| |
| static POLICYINFO *policy_section(const X509V3_CTX *ctx, |
| const STACK_OF(CONF_VALUE) *polstrs, |
| int ia5org) { |
| POLICYINFO *pol; |
| POLICYQUALINFO *qual; |
| if (!(pol = POLICYINFO_new())) { |
| goto err; |
| } |
| for (size_t i = 0; i < sk_CONF_VALUE_num(polstrs); i++) { |
| const CONF_VALUE *cnf = sk_CONF_VALUE_value(polstrs, i); |
| if (!strcmp(cnf->name, "policyIdentifier")) { |
| ASN1_OBJECT *pobj; |
| if (!(pobj = OBJ_txt2obj(cnf->value, 0))) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| pol->policyid = pobj; |
| |
| } else if (x509v3_conf_name_matches(cnf->name, "CPS")) { |
| if (!pol->qualifiers) { |
| pol->qualifiers = sk_POLICYQUALINFO_new_null(); |
| } |
| if (!(qual = POLICYQUALINFO_new())) { |
| goto err; |
| } |
| if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) { |
| goto err; |
| } |
| qual->pqualid = OBJ_nid2obj(NID_id_qt_cps); |
| if (qual->pqualid == nullptr) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR); |
| goto err; |
| } |
| qual->d.cpsuri = ASN1_IA5STRING_new(); |
| if (qual->d.cpsuri == nullptr) { |
| goto err; |
| } |
| if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value, strlen(cnf->value))) { |
| goto err; |
| } |
| } else if (x509v3_conf_name_matches(cnf->name, "userNotice")) { |
| if (*cnf->value != '@') { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_EXPECTED_A_SECTION_NAME); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| const STACK_OF(CONF_VALUE) *unot = |
| X509V3_get_section(ctx, cnf->value + 1); |
| if (!unot) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| qual = notice_section(ctx, unot, ia5org); |
| if (!qual) { |
| goto err; |
| } |
| if (!pol->qualifiers) { |
| pol->qualifiers = sk_POLICYQUALINFO_new_null(); |
| } |
| if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) { |
| goto err; |
| } |
| } else { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION); |
| |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| } |
| if (!pol->policyid) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_POLICY_IDENTIFIER); |
| goto err; |
| } |
| |
| return pol; |
| |
| err: |
| POLICYINFO_free(pol); |
| return nullptr; |
| } |
| |
| static POLICYQUALINFO *notice_section(const X509V3_CTX *ctx, |
| const STACK_OF(CONF_VALUE) *unot, |
| int ia5org) { |
| USERNOTICE *notice; |
| POLICYQUALINFO *qual; |
| if (!(qual = POLICYQUALINFO_new())) { |
| goto err; |
| } |
| qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice); |
| if (qual->pqualid == nullptr) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR); |
| goto err; |
| } |
| if (!(notice = USERNOTICE_new())) { |
| goto err; |
| } |
| qual->d.usernotice = notice; |
| for (size_t i = 0; i < sk_CONF_VALUE_num(unot); i++) { |
| const CONF_VALUE *cnf = sk_CONF_VALUE_value(unot, i); |
| if (!strcmp(cnf->name, "explicitText")) { |
| notice->exptext = ASN1_VISIBLESTRING_new(); |
| if (notice->exptext == nullptr) { |
| goto err; |
| } |
| if (!ASN1_STRING_set(notice->exptext, cnf->value, strlen(cnf->value))) { |
| goto err; |
| } |
| } else if (!strcmp(cnf->name, "organization")) { |
| NOTICEREF *nref; |
| if (!notice->noticeref) { |
| if (!(nref = NOTICEREF_new())) { |
| goto err; |
| } |
| notice->noticeref = nref; |
| } else { |
| nref = notice->noticeref; |
| } |
| if (ia5org) { |
| nref->organization->type = V_ASN1_IA5STRING; |
| } else { |
| nref->organization->type = V_ASN1_VISIBLESTRING; |
| } |
| if (!ASN1_STRING_set(nref->organization, cnf->value, |
| strlen(cnf->value))) { |
| goto err; |
| } |
| } else if (!strcmp(cnf->name, "noticeNumbers")) { |
| NOTICEREF *nref; |
| STACK_OF(CONF_VALUE) *nos; |
| if (!notice->noticeref) { |
| if (!(nref = NOTICEREF_new())) { |
| goto err; |
| } |
| notice->noticeref = nref; |
| } else { |
| nref = notice->noticeref; |
| } |
| nos = X509V3_parse_list(cnf->value); |
| if (!nos || !sk_CONF_VALUE_num(nos)) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBERS); |
| X509V3_conf_err(cnf); |
| sk_CONF_VALUE_pop_free(nos, X509V3_conf_free); |
| goto err; |
| } |
| int ret = nref_nos(nref->noticenos, nos); |
| sk_CONF_VALUE_pop_free(nos, X509V3_conf_free); |
| if (!ret) { |
| goto err; |
| } |
| } else { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION); |
| X509V3_conf_err(cnf); |
| goto err; |
| } |
| } |
| |
| if (notice->noticeref && |
| (!notice->noticeref->noticenos || !notice->noticeref->organization)) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_NEED_ORGANIZATION_AND_NUMBERS); |
| goto err; |
| } |
| |
| return qual; |
| |
| err: |
| POLICYQUALINFO_free(qual); |
| return nullptr; |
| } |
| |
| static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, |
| const STACK_OF(CONF_VALUE) *nos) { |
| for (size_t i = 0; i < sk_CONF_VALUE_num(nos); i++) { |
| const CONF_VALUE *cnf = sk_CONF_VALUE_value(nos, i); |
| ASN1_INTEGER *aint = s2i_ASN1_INTEGER(nullptr, cnf->name); |
| if (aint == nullptr) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBER); |
| return 0; |
| } |
| if (!sk_ASN1_INTEGER_push(nnums, aint)) { |
| ASN1_INTEGER_free(aint); |
| return 0; |
| } |
| } |
| return 1; |
| } |
| |
| static int i2r_certpol(const X509V3_EXT_METHOD *method, void *ext, BIO *out, |
| int indent) { |
| const STACK_OF(POLICYINFO) *pol = |
| reinterpret_cast<const STACK_OF(POLICYINFO) *>(ext); |
| // First print out the policy OIDs |
| for (size_t i = 0; i < sk_POLICYINFO_num(pol); i++) { |
| const POLICYINFO *pinfo = sk_POLICYINFO_value(pol, i); |
| BIO_printf(out, "%*sPolicy: ", indent, ""); |
| i2a_ASN1_OBJECT(out, pinfo->policyid); |
| BIO_puts(out, "\n"); |
| if (pinfo->qualifiers) { |
| print_qualifiers(out, pinfo->qualifiers, indent + 2); |
| } |
| } |
| return 1; |
| } |
| |
| static void print_qualifiers(BIO *out, const STACK_OF(POLICYQUALINFO) *quals, |
| int indent) { |
| for (size_t i = 0; i < sk_POLICYQUALINFO_num(quals); i++) { |
| const POLICYQUALINFO *qualinfo = sk_POLICYQUALINFO_value(quals, i); |
| switch (OBJ_obj2nid(qualinfo->pqualid)) { |
| case NID_id_qt_cps: |
| BIO_printf(out, "%*sCPS: %.*s\n", indent, "", |
| qualinfo->d.cpsuri->length, qualinfo->d.cpsuri->data); |
| break; |
| |
| case NID_id_qt_unotice: |
| BIO_printf(out, "%*sUser Notice:\n", indent, ""); |
| print_notice(out, qualinfo->d.usernotice, indent + 2); |
| break; |
| |
| default: |
| BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, ""); |
| |
| i2a_ASN1_OBJECT(out, qualinfo->pqualid); |
| BIO_puts(out, "\n"); |
| break; |
| } |
| } |
| } |
| |
| static void print_notice(BIO *out, const USERNOTICE *notice, int indent) { |
| if (notice->noticeref) { |
| NOTICEREF *ref; |
| ref = notice->noticeref; |
| BIO_printf(out, "%*sOrganization: %.*s\n", indent, "", |
| ref->organization->length, ref->organization->data); |
| BIO_printf(out, "%*sNumber%s: ", indent, "", |
| sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : ""); |
| for (size_t i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) { |
| ASN1_INTEGER *num; |
| char *tmp; |
| num = sk_ASN1_INTEGER_value(ref->noticenos, i); |
| if (i) { |
| BIO_puts(out, ", "); |
| } |
| if (num == nullptr) { |
| BIO_puts(out, "(null)"); |
| } else { |
| tmp = i2s_ASN1_INTEGER(nullptr, num); |
| if (tmp == nullptr) { |
| return; |
| } |
| BIO_puts(out, tmp); |
| OPENSSL_free(tmp); |
| } |
| } |
| BIO_puts(out, "\n"); |
| } |
| if (notice->exptext) { |
| BIO_printf(out, "%*sExplicit Text: %.*s\n", indent, "", |
| notice->exptext->length, notice->exptext->data); |
| } |
| } |
