--- /dev/null
+/* v3_crld.c */
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2008 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com). */
+
+#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/x509v3.h>
+
+static void *v2i_crld(const X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
+static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
+ int indent);
+
+const X509V3_EXT_METHOD v3_crld = {
+ NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
+ 0, 0, 0, 0,
+ 0, 0,
+ 0,
+ v2i_crld,
+ i2r_crldp, 0,
+ NULL
+};
+
+const X509V3_EXT_METHOD v3_freshest_crl = {
+ NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
+ 0, 0, 0, 0,
+ 0, 0,
+ 0,
+ v2i_crld,
+ i2r_crldp, 0,
+ NULL
+};
+
+static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx,
+ char *sect)
+{
+ STACK_OF(CONF_VALUE) *gnsect;
+ STACK_OF(GENERAL_NAME) *gens;
+ if (*sect == '@')
+ gnsect = X509V3_get_section(ctx, sect + 1);
+ else
+ gnsect = X509V3_parse_list(sect);
+ if (!gnsect) {
+ OPENSSL_PUT_ERROR(X509V3, X509V3_R_SECTION_NOT_FOUND);
+ return NULL;
+ }
+ gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect);
+ if (*sect == '@')
+ X509V3_section_free(ctx, gnsect);
+ else
+ sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free);
+ return gens;
+}
+
+static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx,
+ CONF_VALUE *cnf)
+{
+ STACK_OF(GENERAL_NAME) *fnm = NULL;
+ STACK_OF(X509_NAME_ENTRY) *rnm = NULL;
+ if (!strncmp(cnf->name, "fullname", 9)) {
+ fnm = gnames_from_sectname(ctx, cnf->value);
+ if (!fnm)
+ goto err;
+ } else if (!strcmp(cnf->name, "relativename")) {
+ int ret;
+ STACK_OF(CONF_VALUE) *dnsect;
+ X509_NAME *nm;
+ nm = X509_NAME_new();
+ if (!nm)
+ return -1;
+ dnsect = X509V3_get_section(ctx, cnf->value);
+ if (!dnsect) {
+ OPENSSL_PUT_ERROR(X509V3, X509V3_R_SECTION_NOT_FOUND);
+ return -1;
+ }
+ ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC);
+ X509V3_section_free(ctx, dnsect);
+ rnm = nm->entries;
+ nm->entries = NULL;
+ X509_NAME_free(nm);
+ if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0)
+ goto err;
+ /*
+ * Since its a name fragment can't have more than one RDNSequence
+ */
+ if (sk_X509_NAME_ENTRY_value(rnm,
+ sk_X509_NAME_ENTRY_num(rnm) - 1)->set) {
+ OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_MULTIPLE_RDNS);
+ goto err;
+ }
+ } else
+ return 0;
+
+ if (*pdp) {
+ OPENSSL_PUT_ERROR(X509V3, X509V3_R_DISTPOINT_ALREADY_SET);
+ goto err;
+ }
+
+ *pdp = DIST_POINT_NAME_new();
+ if (!*pdp)
+ goto err;
+ if (fnm) {
+ (*pdp)->type = 0;
+ (*pdp)->name.fullname = fnm;
+ } else {
+ (*pdp)->type = 1;
+ (*pdp)->name.relativename = rnm;
+ }
+
+ return 1;
+
+ err:
+ if (fnm)
+ sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free);
+ if (rnm)
+ sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free);
+ return -1;
+}
+
+static const BIT_STRING_BITNAME reason_flags[] = {
+ {0, "Unused", "unused"},
+ {1, "Key Compromise", "keyCompromise"},
+ {2, "CA Compromise", "CACompromise"},
+ {3, "Affiliation Changed", "affiliationChanged"},
+ {4, "Superseded", "superseded"},
+ {5, "Cessation Of Operation", "cessationOfOperation"},
+ {6, "Certificate Hold", "certificateHold"},
+ {7, "Privilege Withdrawn", "privilegeWithdrawn"},
+ {8, "AA Compromise", "AACompromise"},
+ {-1, NULL, NULL}
+};
+
+static int set_reasons(ASN1_BIT_STRING **preas, char *value)
+{
+ STACK_OF(CONF_VALUE) *rsk = NULL;
+ const BIT_STRING_BITNAME *pbn;
+ const char *bnam;
+ size_t i;
+ int ret = 0;
+ rsk = X509V3_parse_list(value);
+ if (!rsk)
+ return 0;
+ if (*preas)
+ return 0;
+ for (i = 0; i < sk_CONF_VALUE_num(rsk); i++) {
+ bnam = sk_CONF_VALUE_value(rsk, i)->name;
+ if (!*preas) {
+ *preas = ASN1_BIT_STRING_new();
+ if (!*preas)
+ goto err;
+ }
+ for (pbn = reason_flags; pbn->lname; pbn++) {
+ if (!strcmp(pbn->sname, bnam)) {
+ if (!ASN1_BIT_STRING_set_bit(*preas, pbn->bitnum, 1))
+ goto err;
+ break;
+ }
+ }
+ if (!pbn->lname)
+ goto err;
+ }
+ ret = 1;
+
+ err:
+ sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free);
+ return ret;
+}
+
+static int print_reasons(BIO *out, const char *rname,
+ ASN1_BIT_STRING *rflags, int indent)
+{
+ int first = 1;
+ const BIT_STRING_BITNAME *pbn;
+ BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, "");
+ for (pbn = reason_flags; pbn->lname; pbn++) {
+ if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum)) {
+ if (first)
+ first = 0;
+ else
+ BIO_puts(out, ", ");
+ BIO_puts(out, pbn->lname);
+ }
+ }
+ if (first)
+ BIO_puts(out, "<EMPTY>\n");
+ else
+ BIO_puts(out, "\n");
+ return 1;
+}
+
+static DIST_POINT *crldp_from_section(X509V3_CTX *ctx,
+ STACK_OF(CONF_VALUE) *nval)
+{
+ size_t i;
+ CONF_VALUE *cnf;
+ DIST_POINT *point = NULL;
+ point = DIST_POINT_new();
+ if (!point)
+ goto err;
+ for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
+ int ret;
+ cnf = sk_CONF_VALUE_value(nval, i);
+ ret = set_dist_point_name(&point->distpoint, ctx, cnf);
+ if (ret > 0)
+ continue;
+ if (ret < 0)
+ goto err;
+ if (!strcmp(cnf->name, "reasons")) {
+ if (!set_reasons(&point->reasons, cnf->value))
+ goto err;
+ } else if (!strcmp(cnf->name, "CRLissuer")) {
+ point->CRLissuer = gnames_from_sectname(ctx, cnf->value);
+ if (!point->CRLissuer)
+ goto err;
+ }
+ }
+
+ return point;
+
+ err:
+ if (point)
+ DIST_POINT_free(point);
+ return NULL;
+}
+
+static void *v2i_crld(const X509V3_EXT_METHOD *method,
+ X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
+{
+ STACK_OF(DIST_POINT) *crld = NULL;
+ GENERAL_NAMES *gens = NULL;
+ GENERAL_NAME *gen = NULL;
+ CONF_VALUE *cnf;
+ size_t i;
+ if (!(crld = sk_DIST_POINT_new_null()))
+ goto merr;
+ for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
+ DIST_POINT *point;
+ cnf = sk_CONF_VALUE_value(nval, i);
+ if (!cnf->value) {
+ STACK_OF(CONF_VALUE) *dpsect;
+ dpsect = X509V3_get_section(ctx, cnf->name);
+ if (!dpsect)
+ goto err;
+ point = crldp_from_section(ctx, dpsect);
+ X509V3_section_free(ctx, dpsect);
+ if (!point)
+ goto err;
+ if (!sk_DIST_POINT_push(crld, point)) {
+ DIST_POINT_free(point);
+ goto merr;
+ }
+ } else {
+ if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
+ goto err;
+ if (!(gens = GENERAL_NAMES_new()))
+ goto merr;
+ if (!sk_GENERAL_NAME_push(gens, gen))
+ goto merr;
+ gen = NULL;
+ if (!(point = DIST_POINT_new()))
+ goto merr;
+ if (!sk_DIST_POINT_push(crld, point)) {
+ DIST_POINT_free(point);
+ goto merr;
+ }
+ if (!(point->distpoint = DIST_POINT_NAME_new()))
+ goto merr;
+ point->distpoint->name.fullname = gens;
+ point->distpoint->type = 0;
+ gens = NULL;
+ }
+ }
+ return crld;
+
+ merr:
+ OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
+ err:
+ GENERAL_NAME_free(gen);
+ GENERAL_NAMES_free(gens);
+ sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
+ return NULL;
+}
+
+IMPLEMENT_ASN1_SET_OF(DIST_POINT)
+
+static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ void *exarg)
+{
+ DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval;
+
+ switch (operation) {
+ case ASN1_OP_NEW_POST:
+ dpn->dpname = NULL;
+ break;
+
+ case ASN1_OP_FREE_POST:
+ if (dpn->dpname)
+ X509_NAME_free(dpn->dpname);
+ break;
+ }
+ return 1;
+}
+
+
+ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = {
+ ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
+ ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
+} ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type)
+
+
+IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)
+
+ASN1_SEQUENCE(DIST_POINT) = {
+ ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0),
+ ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1),
+ ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2)
+} ASN1_SEQUENCE_END(DIST_POINT)
+
+IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT)
+
+ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) =
+ ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT)
+ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)
+
+IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)
+
+ASN1_SEQUENCE(ISSUING_DIST_POINT) = {
+ ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0),
+ ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1),
+ ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2),
+ ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3),
+ ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4),
+ ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5)
+} ASN1_SEQUENCE_END(ISSUING_DIST_POINT)
+
+IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT)
+
+static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
+ int indent);
+static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
+ STACK_OF(CONF_VALUE) *nval);
+
+const X509V3_EXT_METHOD v3_idp = {
+ NID_issuing_distribution_point, X509V3_EXT_MULTILINE,
+ ASN1_ITEM_ref(ISSUING_DIST_POINT),
+ 0, 0, 0, 0,
+ 0, 0,
+ 0,
+ v2i_idp,
+ i2r_idp, 0,
+ NULL
+};
+
+static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
+ STACK_OF(CONF_VALUE) *nval)
+{
+ ISSUING_DIST_POINT *idp = NULL;
+ CONF_VALUE *cnf;
+ char *name, *val;
+ size_t i;
+ int ret;
+ idp = ISSUING_DIST_POINT_new();
+ if (!idp)
+ goto merr;
+ for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
+ cnf = sk_CONF_VALUE_value(nval, i);
+ name = cnf->name;
+ val = cnf->value;
+ ret = set_dist_point_name(&idp->distpoint, ctx, cnf);
+ if (ret > 0)
+ continue;
+ if (ret < 0)
+ goto err;
+ if (!strcmp(name, "onlyuser")) {
+ if (!X509V3_get_value_bool(cnf, &idp->onlyuser))
+ goto err;
+ } else if (!strcmp(name, "onlyCA")) {
+ if (!X509V3_get_value_bool(cnf, &idp->onlyCA))
+ goto err;
+ } else if (!strcmp(name, "onlyAA")) {
+ if (!X509V3_get_value_bool(cnf, &idp->onlyattr))
+ goto err;
+ } else if (!strcmp(name, "indirectCRL")) {
+ if (!X509V3_get_value_bool(cnf, &idp->indirectCRL))
+ goto err;
+ } else if (!strcmp(name, "onlysomereasons")) {
+ if (!set_reasons(&idp->onlysomereasons, val))
+ goto err;
+ } else {
+ OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NAME);
+ X509V3_conf_err(cnf);
+ goto err;
+ }
+ }
+ return idp;
+
+ merr:
+ OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
+ err:
+ ISSUING_DIST_POINT_free(idp);
+ return NULL;
+}
+
+static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent)
+{
+ size_t i;
+ for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
+ BIO_printf(out, "%*s", indent + 2, "");
+ GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i));
+ BIO_puts(out, "\n");
+ }
+ return 1;
+}
+
+static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent)
+{
+ if (dpn->type == 0) {
+ BIO_printf(out, "%*sFull Name:\n", indent, "");
+ print_gens(out, dpn->name.fullname, indent);
+ } else {
+ X509_NAME ntmp;
+ ntmp.entries = dpn->name.relativename;
+ BIO_printf(out, "%*sRelative Name:\n%*s", indent, "", indent + 2, "");
+ X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE);
+ BIO_puts(out, "\n");
+ }
+ return 1;
+}
+
+static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out,
+ int indent)
+{
+ ISSUING_DIST_POINT *idp = pidp;
+ if (idp->distpoint)
+ print_distpoint(out, idp->distpoint, indent);
+ if (idp->onlyuser > 0)
+ BIO_printf(out, "%*sOnly User Certificates\n", indent, "");
+ if (idp->onlyCA > 0)
+ BIO_printf(out, "%*sOnly CA Certificates\n", indent, "");
+ if (idp->indirectCRL > 0)
+ BIO_printf(out, "%*sIndirect CRL\n", indent, "");
+ if (idp->onlysomereasons)
+ print_reasons(out, "Only Some Reasons", idp->onlysomereasons, indent);
+ if (idp->onlyattr > 0)
+ BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, "");
+ if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0)
+ && (idp->indirectCRL <= 0) && !idp->onlysomereasons
+ && (idp->onlyattr <= 0))
+ BIO_printf(out, "%*s<EMPTY>\n", indent, "");
+
+ return 1;
+}
+
+static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
+ int indent)
+{
+ STACK_OF(DIST_POINT) *crld = pcrldp;
+ DIST_POINT *point;
+ size_t i;
+ for (i = 0; i < sk_DIST_POINT_num(crld); i++) {
+ BIO_puts(out, "\n");
+ point = sk_DIST_POINT_value(crld, i);
+ if (point->distpoint)
+ print_distpoint(out, point->distpoint, indent);
+ if (point->reasons)
+ print_reasons(out, "Reasons", point->reasons, indent);
+ if (point->CRLissuer) {
+ BIO_printf(out, "%*sCRL Issuer:\n", indent, "");
+ print_gens(out, point->CRLissuer, indent);
+ }
+ }
+ return 1;
+}
+
+int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname)
+{
+ size_t i;
+ STACK_OF(X509_NAME_ENTRY) *frag;
+ X509_NAME_ENTRY *ne;
+ if (!dpn || (dpn->type != 1))
+ return 1;
+ frag = dpn->name.relativename;
+ dpn->dpname = X509_NAME_dup(iname);
+ if (!dpn->dpname)
+ return 0;
+ for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++) {
+ ne = sk_X509_NAME_ENTRY_value(frag, i);
+ if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1)) {
+ X509_NAME_free(dpn->dpname);
+ dpn->dpname = NULL;
+ return 0;
+ }
+ }
+ /* generate cached encoding of name */
+ if (i2d_X509_NAME(dpn->dpname, NULL) < 0) {
+ X509_NAME_free(dpn->dpname);
+ dpn->dpname = NULL;
+ return 0;
+ }
+ return 1;
+}
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