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- /*
- * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved.
- *
- * 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
- */
- #include <stdio.h>
- #include "internal/cryptlib.h"
- #include <openssl/conf.h>
- #include <openssl/asn1.h>
- #include <openssl/asn1t.h>
- #include <openssl/x509v3.h>
- #include "pcy_local.h"
- #include "ext_dat.h"
- DEFINE_STACK_OF(CONF_VALUE)
- DEFINE_STACK_OF(POLICYINFO)
- DEFINE_STACK_OF(POLICYQUALINFO)
- DEFINE_STACK_OF(ASN1_INTEGER)
- /* Certificate policies extension support: this one is a bit complex... */
- static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
- BIO *out, int indent);
- static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, const char *value);
- static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
- int indent);
- static void print_notice(BIO *out, USERNOTICE *notice, int indent);
- static POLICYINFO *policy_section(X509V3_CTX *ctx,
- STACK_OF(CONF_VALUE) *polstrs, int ia5org);
- static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
- STACK_OF(CONF_VALUE) *unot, int ia5org);
- static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);
- static int displaytext_str2tag(const char *tagstr, unsigned int *tag_len);
- static int displaytext_get_tag_len(const char *tagstr);
- const X509V3_EXT_METHOD v3_cpols = {
- NID_certificate_policies, 0, ASN1_ITEM_ref(CERTIFICATEPOLICIES),
- 0, 0, 0, 0,
- 0, 0,
- 0, 0,
- (X509V3_EXT_I2R)i2r_certpol,
- (X509V3_EXT_R2I)r2i_certpol,
- NULL
- };
- ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
- ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
- ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
- IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
- ASN1_SEQUENCE(POLICYINFO) = {
- ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
- ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
- } ASN1_SEQUENCE_END(POLICYINFO)
- IMPLEMENT_ASN1_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_FUNCTIONS(POLICYQUALINFO)
- ASN1_SEQUENCE(USERNOTICE) = {
- ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
- ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
- } ASN1_SEQUENCE_END(USERNOTICE)
- IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
- ASN1_SEQUENCE(NOTICEREF) = {
- ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
- ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
- } ASN1_SEQUENCE_END(NOTICEREF)
- IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
- static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, const char *value)
- {
- STACK_OF(POLICYINFO) *pols;
- char *pstr;
- POLICYINFO *pol;
- ASN1_OBJECT *pobj;
- STACK_OF(CONF_VALUE) *vals = X509V3_parse_list(value);
- CONF_VALUE *cnf;
- const int num = sk_CONF_VALUE_num(vals);
- int i, ia5org;
- if (vals == NULL) {
- X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB);
- return NULL;
- }
- pols = sk_POLICYINFO_new_reserve(NULL, num);
- if (pols == NULL) {
- X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- ia5org = 0;
- for (i = 0; i < num; i++) {
- cnf = sk_CONF_VALUE_value(vals, i);
- if (cnf->value || !cnf->name) {
- X509V3err(X509V3_F_R2I_CERTPOL,
- X509V3_R_INVALID_POLICY_IDENTIFIER);
- X509V3_conf_err(cnf);
- goto err;
- }
- pstr = cnf->name;
- if (strcmp(pstr, "ia5org") == 0) {
- ia5org = 1;
- continue;
- } else if (*pstr == '@') {
- STACK_OF(CONF_VALUE) *polsect;
- polsect = X509V3_get_section(ctx, pstr + 1);
- if (polsect == NULL) {
- X509V3err(X509V3_F_R2I_CERTPOL, X509V3_R_INVALID_SECTION);
- X509V3_conf_err(cnf);
- goto err;
- }
- pol = policy_section(ctx, polsect, ia5org);
- X509V3_section_free(ctx, polsect);
- if (pol == NULL)
- goto err;
- } else {
- if ((pobj = OBJ_txt2obj(cnf->name, 0)) == NULL) {
- X509V3err(X509V3_F_R2I_CERTPOL,
- X509V3_R_INVALID_OBJECT_IDENTIFIER);
- X509V3_conf_err(cnf);
- goto err;
- }
- pol = POLICYINFO_new();
- if (pol == NULL) {
- ASN1_OBJECT_free(pobj);
- X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- pol->policyid = pobj;
- }
- if (!sk_POLICYINFO_push(pols, pol)) {
- POLICYINFO_free(pol);
- X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
- 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 NULL;
- }
- static POLICYINFO *policy_section(X509V3_CTX *ctx,
- STACK_OF(CONF_VALUE) *polstrs, int ia5org)
- {
- int i;
- CONF_VALUE *cnf;
- POLICYINFO *pol;
- POLICYQUALINFO *qual;
- if ((pol = POLICYINFO_new()) == NULL)
- goto merr;
- for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
- cnf = sk_CONF_VALUE_value(polstrs, i);
- if (strcmp(cnf->name, "policyIdentifier") == 0) {
- ASN1_OBJECT *pobj;
- if ((pobj = OBJ_txt2obj(cnf->value, 0)) == NULL) {
- X509V3err(X509V3_F_POLICY_SECTION,
- X509V3_R_INVALID_OBJECT_IDENTIFIER);
- X509V3_conf_err(cnf);
- goto err;
- }
- pol->policyid = pobj;
- } else if (!v3_name_cmp(cnf->name, "CPS")) {
- if (pol->qualifiers == NULL)
- pol->qualifiers = sk_POLICYQUALINFO_new_null();
- if ((qual = POLICYQUALINFO_new()) == NULL)
- goto merr;
- if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
- goto merr;
- if ((qual->pqualid = OBJ_nid2obj(NID_id_qt_cps)) == NULL) {
- X509V3err(X509V3_F_POLICY_SECTION, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- if ((qual->d.cpsuri = ASN1_IA5STRING_new()) == NULL)
- goto merr;
- if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
- strlen(cnf->value)))
- goto merr;
- } else if (!v3_name_cmp(cnf->name, "userNotice")) {
- STACK_OF(CONF_VALUE) *unot;
- if (*cnf->value != '@') {
- X509V3err(X509V3_F_POLICY_SECTION,
- X509V3_R_EXPECTED_A_SECTION_NAME);
- X509V3_conf_err(cnf);
- goto err;
- }
- unot = X509V3_get_section(ctx, cnf->value + 1);
- if (!unot) {
- X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_SECTION);
- X509V3_conf_err(cnf);
- goto err;
- }
- qual = notice_section(ctx, unot, ia5org);
- X509V3_section_free(ctx, unot);
- if (!qual)
- goto err;
- if (pol->qualifiers == NULL)
- pol->qualifiers = sk_POLICYQUALINFO_new_null();
- if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
- goto merr;
- } else {
- X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_OPTION);
- X509V3_conf_err(cnf);
- goto err;
- }
- }
- if (pol->policyid == NULL) {
- X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_NO_POLICY_IDENTIFIER);
- goto err;
- }
- return pol;
- merr:
- X509V3err(X509V3_F_POLICY_SECTION, ERR_R_MALLOC_FAILURE);
- err:
- POLICYINFO_free(pol);
- return NULL;
- }
- static int displaytext_get_tag_len(const char *tagstr)
- {
- char *colon = strchr(tagstr, ':');
- return (colon == NULL) ? -1 : colon - tagstr;
- }
- static int displaytext_str2tag(const char *tagstr, unsigned int *tag_len)
- {
- int len;
- *tag_len = 0;
- len = displaytext_get_tag_len(tagstr);
- if (len == -1)
- return V_ASN1_VISIBLESTRING;
- *tag_len = len;
- if (len == sizeof("UTF8") - 1 && strncmp(tagstr, "UTF8", len) == 0)
- return V_ASN1_UTF8STRING;
- if (len == sizeof("UTF8String") - 1 && strncmp(tagstr, "UTF8String", len) == 0)
- return V_ASN1_UTF8STRING;
- if (len == sizeof("BMP") - 1 && strncmp(tagstr, "BMP", len) == 0)
- return V_ASN1_BMPSTRING;
- if (len == sizeof("BMPSTRING") - 1 && strncmp(tagstr, "BMPSTRING", len) == 0)
- return V_ASN1_BMPSTRING;
- if (len == sizeof("VISIBLE") - 1 && strncmp(tagstr, "VISIBLE", len) == 0)
- return V_ASN1_VISIBLESTRING;
- if (len == sizeof("VISIBLESTRING") - 1 && strncmp(tagstr, "VISIBLESTRING", len) == 0)
- return V_ASN1_VISIBLESTRING;
- *tag_len = 0;
- return V_ASN1_VISIBLESTRING;
- }
- static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
- STACK_OF(CONF_VALUE) *unot, int ia5org)
- {
- int i, ret, len, tag;
- unsigned int tag_len;
- CONF_VALUE *cnf;
- USERNOTICE *not;
- POLICYQUALINFO *qual;
- char *value = NULL;
- if ((qual = POLICYQUALINFO_new()) == NULL)
- goto merr;
- if ((qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice)) == NULL) {
- X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- if ((not = USERNOTICE_new()) == NULL)
- goto merr;
- qual->d.usernotice = not;
- for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
- cnf = sk_CONF_VALUE_value(unot, i);
- value = cnf->value;
- if (strcmp(cnf->name, "explicitText") == 0) {
- tag = displaytext_str2tag(value, &tag_len);
- if ((not->exptext = ASN1_STRING_type_new(tag)) == NULL)
- goto merr;
- if (tag_len != 0)
- value += tag_len + 1;
- len = strlen(value);
- if (!ASN1_STRING_set(not->exptext, value, len))
- goto merr;
- } else if (strcmp(cnf->name, "organization") == 0) {
- NOTICEREF *nref;
- if (!not->noticeref) {
- if ((nref = NOTICEREF_new()) == NULL)
- goto merr;
- not->noticeref = nref;
- } else
- nref = not->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 merr;
- } else if (strcmp(cnf->name, "noticeNumbers") == 0) {
- NOTICEREF *nref;
- STACK_OF(CONF_VALUE) *nos;
- if (!not->noticeref) {
- if ((nref = NOTICEREF_new()) == NULL)
- goto merr;
- not->noticeref = nref;
- } else
- nref = not->noticeref;
- nos = X509V3_parse_list(cnf->value);
- if (!nos || !sk_CONF_VALUE_num(nos)) {
- X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_NUMBERS);
- X509V3_conf_err(cnf);
- sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
- goto err;
- }
- ret = nref_nos(nref->noticenos, nos);
- sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
- if (!ret)
- goto err;
- } else {
- X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_OPTION);
- X509V3_conf_err(cnf);
- goto err;
- }
- }
- if (not->noticeref &&
- (!not->noticeref->noticenos || !not->noticeref->organization)) {
- X509V3err(X509V3_F_NOTICE_SECTION,
- X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
- goto err;
- }
- return qual;
- merr:
- X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_MALLOC_FAILURE);
- err:
- POLICYQUALINFO_free(qual);
- return NULL;
- }
- static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
- {
- CONF_VALUE *cnf;
- ASN1_INTEGER *aint;
- int i;
- for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
- cnf = sk_CONF_VALUE_value(nos, i);
- if ((aint = s2i_ASN1_INTEGER(NULL, cnf->name)) == NULL) {
- X509V3err(X509V3_F_NREF_NOS, X509V3_R_INVALID_NUMBER);
- goto err;
- }
- if (!sk_ASN1_INTEGER_push(nnums, aint))
- goto merr;
- }
- return 1;
- merr:
- ASN1_INTEGER_free(aint);
- X509V3err(X509V3_F_NREF_NOS, ERR_R_MALLOC_FAILURE);
- err:
- return 0;
- }
- static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
- BIO *out, int indent)
- {
- int i;
- POLICYINFO *pinfo;
- /* First print out the policy OIDs */
- for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
- if (i > 0)
- BIO_puts(out, "\n");
- pinfo = sk_POLICYINFO_value(pol, i);
- BIO_printf(out, "%*sPolicy: ", indent, "");
- i2a_ASN1_OBJECT(out, pinfo->policyid);
- if (pinfo->qualifiers) {
- BIO_puts(out, "\n");
- print_qualifiers(out, pinfo->qualifiers, indent + 2);
- }
- }
- return 1;
- }
- static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
- int indent)
- {
- POLICYQUALINFO *qualinfo;
- int i;
- for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
- if (i > 0)
- BIO_puts(out, "\n");
- qualinfo = sk_POLICYQUALINFO_value(quals, i);
- switch (OBJ_obj2nid(qualinfo->pqualid)) {
- case NID_id_qt_cps:
- BIO_printf(out, "%*sCPS: %s", indent, "",
- 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);
- break;
- }
- }
- }
- static void print_notice(BIO *out, USERNOTICE *notice, int indent)
- {
- int i;
- if (notice->noticeref) {
- NOTICEREF *ref;
- ref = notice->noticeref;
- BIO_printf(out, "%*sOrganization: %s\n", indent, "",
- ref->organization->data);
- BIO_printf(out, "%*sNumber%s: ", indent, "",
- sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
- for (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 == NULL)
- BIO_puts(out, "(null)");
- else {
- tmp = i2s_ASN1_INTEGER(NULL, num);
- if (tmp == NULL)
- return;
- BIO_puts(out, tmp);
- OPENSSL_free(tmp);
- }
- }
- if (notice->exptext)
- BIO_puts(out, "\n");
- }
- if (notice->exptext)
- BIO_printf(out, "%*sExplicit Text: %s", indent, "",
- notice->exptext->data);
- }
- void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
- {
- const X509_POLICY_DATA *dat = node->data;
- BIO_printf(out, "%*sPolicy: ", indent, "");
- i2a_ASN1_OBJECT(out, dat->valid_policy);
- BIO_puts(out, "\n");
- BIO_printf(out, "%*s%s\n", indent + 2, "",
- node_data_critical(dat) ? "Critical" : "Non Critical");
- if (dat->qualifier_set) {
- print_qualifiers(out, dat->qualifier_set, indent + 2);
- BIO_puts(out, "\n");
- }
- else
- BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
- }
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