/* v3_lib.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
/* X509 v3 extension utilities */
#include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/conf.h>
#include <openssl/x509v3.h>
static STACK_OF(X509V3_EXT_METHOD) *ext_list = NULL;
-static int ext_cmp(const X509V3_EXT_METHOD * const *a,
- const X509V3_EXT_METHOD * const *b);
+static int ext_cmp(const X509V3_EXT_METHOD *const *a,
+ const X509V3_EXT_METHOD *const *b);
static void ext_list_free(X509V3_EXT_METHOD *ext);
int X509V3_EXT_add(X509V3_EXT_METHOD *ext)
{
- if(!ext_list && !(ext_list = sk_X509V3_EXT_METHOD_new(ext_cmp))) {
- X509V3err(X509V3_F_X509V3_EXT_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!sk_X509V3_EXT_METHOD_push(ext_list, ext)) {
- X509V3err(X509V3_F_X509V3_EXT_ADD,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- return 1;
+ if (ext_list == NULL
+ && (ext_list = sk_X509V3_EXT_METHOD_new(ext_cmp)) == NULL) {
+ X509V3err(X509V3_F_X509V3_EXT_ADD, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ if (!sk_X509V3_EXT_METHOD_push(ext_list, ext)) {
+ X509V3err(X509V3_F_X509V3_EXT_ADD, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ return 1;
}
-static int ext_cmp(const X509V3_EXT_METHOD * const *a,
- const X509V3_EXT_METHOD * const *b)
+static int ext_cmp(const X509V3_EXT_METHOD *const *a,
+ const X509V3_EXT_METHOD *const *b)
{
- return ((*a)->ext_nid - (*b)->ext_nid);
+ return ((*a)->ext_nid - (*b)->ext_nid);
}
-X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid)
+DECLARE_OBJ_BSEARCH_CMP_FN(const X509V3_EXT_METHOD *,
+ const X509V3_EXT_METHOD *, ext);
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(const X509V3_EXT_METHOD *,
+ const X509V3_EXT_METHOD *, ext);
+
+/*
+ * This table will be searched using OBJ_bsearch so it *must* kept in order
+ * of the ext_nid values.
+ */
+
+static const X509V3_EXT_METHOD *standard_exts[] = {
+ &v3_nscert,
+ &v3_ns_ia5_list[0],
+ &v3_ns_ia5_list[1],
+ &v3_ns_ia5_list[2],
+ &v3_ns_ia5_list[3],
+ &v3_ns_ia5_list[4],
+ &v3_ns_ia5_list[5],
+ &v3_ns_ia5_list[6],
+ &v3_skey_id,
+ &v3_key_usage,
+ &v3_pkey_usage_period,
+ &v3_alt[0],
+ &v3_alt[1],
+ &v3_bcons,
+ &v3_crl_num,
+ &v3_cpols,
+ &v3_akey_id,
+ &v3_crld,
+ &v3_ext_ku,
+ &v3_delta_crl,
+ &v3_crl_reason,
+#ifndef OPENSSL_NO_OCSP
+ &v3_crl_invdate,
+#endif
+ &v3_sxnet,
+ &v3_info,
+#ifndef OPENSSL_NO_RFC3779
+ &v3_addr,
+ &v3_asid,
+#endif
+#ifndef OPENSSL_NO_OCSP
+ &v3_ocsp_nonce,
+ &v3_ocsp_crlid,
+ &v3_ocsp_accresp,
+ &v3_ocsp_nocheck,
+ &v3_ocsp_acutoff,
+ &v3_ocsp_serviceloc,
+#endif
+ &v3_sinfo,
+ &v3_policy_constraints,
+#ifndef OPENSSL_NO_OCSP
+ &v3_crl_hold,
+#endif
+ &v3_pci,
+ &v3_name_constraints,
+ &v3_policy_mappings,
+ &v3_inhibit_anyp,
+ &v3_idp,
+ &v3_alt[2],
+ &v3_freshest_crl,
+#ifndef OPENSSL_NO_CT
+ &v3_ct_scts[0],
+ &v3_ct_scts[1],
+#endif
+};
+
+/* Number of standard extensions */
+
+#define STANDARD_EXTENSION_COUNT OSSL_NELEM(standard_exts)
+
+const X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid)
{
- X509V3_EXT_METHOD tmp, *t = &tmp, **ret;
- int idx;
- if(nid < 0) return NULL;
- tmp.ext_nid = nid;
- ret = (X509V3_EXT_METHOD **) OBJ_bsearch((char *)&t,
- (char *)standard_exts, STANDARD_EXTENSION_COUNT,
- sizeof(X509V3_EXT_METHOD *), (int (*)(const void *, const void *))ext_cmp);
- if(ret) return *ret;
- if(!ext_list) return NULL;
- idx = sk_X509V3_EXT_METHOD_find(ext_list, &tmp);
- if(idx == -1) return NULL;
- return sk_X509V3_EXT_METHOD_value(ext_list, idx);
+ X509V3_EXT_METHOD tmp;
+ const X509V3_EXT_METHOD *t = &tmp, *const *ret;
+ int idx;
+ if (nid < 0)
+ return NULL;
+ tmp.ext_nid = nid;
+ ret = OBJ_bsearch_ext(&t, standard_exts, STANDARD_EXTENSION_COUNT);
+ if (ret)
+ return *ret;
+ if (!ext_list)
+ return NULL;
+ idx = sk_X509V3_EXT_METHOD_find(ext_list, &tmp);
+ if (idx == -1)
+ return NULL;
+ return sk_X509V3_EXT_METHOD_value(ext_list, idx);
}
-X509V3_EXT_METHOD *X509V3_EXT_get(X509_EXTENSION *ext)
+const X509V3_EXT_METHOD *X509V3_EXT_get(X509_EXTENSION *ext)
{
- int nid;
- if((nid = OBJ_obj2nid(ext->object)) == NID_undef) return NULL;
- return X509V3_EXT_get_nid(nid);
+ int nid;
+ if ((nid = OBJ_obj2nid(X509_EXTENSION_get_object(ext))) == NID_undef)
+ return NULL;
+ return X509V3_EXT_get_nid(nid);
}
-
int X509V3_EXT_add_list(X509V3_EXT_METHOD *extlist)
{
- for(;extlist->ext_nid!=-1;extlist++)
- if(!X509V3_EXT_add(extlist)) return 0;
- return 1;
+ for (; extlist->ext_nid != -1; extlist++)
+ if (!X509V3_EXT_add(extlist))
+ return 0;
+ return 1;
}
int X509V3_EXT_add_alias(int nid_to, int nid_from)
{
- X509V3_EXT_METHOD *ext, *tmpext;
- if(!(ext = X509V3_EXT_get_nid(nid_from))) {
- X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS,X509V3_R_EXTENSION_NOT_FOUND);
- return 0;
- }
- if(!(tmpext = (X509V3_EXT_METHOD *)OPENSSL_malloc(sizeof(X509V3_EXT_METHOD)))) {
- X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- *tmpext = *ext;
- tmpext->ext_nid = nid_to;
- tmpext->ext_flags |= X509V3_EXT_DYNAMIC;
- return X509V3_EXT_add(tmpext);
+ const X509V3_EXT_METHOD *ext;
+ X509V3_EXT_METHOD *tmpext;
+
+ if ((ext = X509V3_EXT_get_nid(nid_from)) == NULL) {
+ X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS, X509V3_R_EXTENSION_NOT_FOUND);
+ return 0;
+ }
+ if ((tmpext = OPENSSL_malloc(sizeof(*tmpext))) == NULL) {
+ X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ *tmpext = *ext;
+ tmpext->ext_nid = nid_to;
+ tmpext->ext_flags |= X509V3_EXT_DYNAMIC;
+ return X509V3_EXT_add(tmpext);
}
void X509V3_EXT_cleanup(void)
{
- sk_X509V3_EXT_METHOD_pop_free(ext_list, ext_list_free);
- ext_list = NULL;
+ sk_X509V3_EXT_METHOD_pop_free(ext_list, ext_list_free);
+ ext_list = NULL;
}
static void ext_list_free(X509V3_EXT_METHOD *ext)
{
- if(ext->ext_flags & X509V3_EXT_DYNAMIC) OPENSSL_free(ext);
+ if (ext->ext_flags & X509V3_EXT_DYNAMIC)
+ OPENSSL_free(ext);
}
-/* Legacy function: we don't need to add standard extensions
- * any more because they are now kept in ext_dat.h.
+/*
+ * Legacy function: we don't need to add standard extensions any more because
+ * they are now kept in ext_dat.h.
*/
int X509V3_add_standard_extensions(void)
{
- return 1;
+ return 1;
}
/* Return an extension internal structure */
void *X509V3_EXT_d2i(X509_EXTENSION *ext)
{
- X509V3_EXT_METHOD *method;
- unsigned char *p;
- if(!(method = X509V3_EXT_get(ext))) return NULL;
- p = ext->value->data;
- if(method->it) return ASN1_item_d2i(NULL, &p, ext->value->length, method->it);
- return method->d2i(NULL, &p, ext->value->length);
+ const X509V3_EXT_METHOD *method;
+ const unsigned char *p;
+ ASN1_STRING *extvalue;
+ int extlen;
+
+ if ((method = X509V3_EXT_get(ext)) == NULL)
+ return NULL;
+ extvalue = X509_EXTENSION_get_data(ext);
+ p = ASN1_STRING_data(extvalue);
+ extlen = ASN1_STRING_length(extvalue);
+ if (method->it)
+ return ASN1_item_d2i(NULL, &p, extlen, ASN1_ITEM_ptr(method->it));
+ return method->d2i(NULL, &p, extlen);
}
-/* Get critical flag and decoded version of extension from a NID.
+/*-
+ * Get critical flag and decoded version of extension from a NID.
* The "idx" variable returns the last found extension and can
* be used to retrieve multiple extensions of the same NID.
* However multiple extensions with the same NID is usually
* -2 extension occurs more than once.
*/
-void *X509V3_get_d2i(STACK_OF(X509_EXTENSION) *x, int nid, int *crit, int *idx)
+void *X509V3_get_d2i(STACK_OF(X509_EXTENSION) *x, int nid, int *crit,
+ int *idx)
{
- int lastpos, i;
- X509_EXTENSION *ex, *found_ex = NULL;
- if(!x) {
- if(idx) *idx = -1;
- if(crit) *crit = -1;
- return NULL;
- }
- if(idx) lastpos = *idx + 1;
- else lastpos = 0;
- if(lastpos < 0) lastpos = 0;
- for(i = lastpos; i < sk_X509_EXTENSION_num(x); i++)
- {
- ex = sk_X509_EXTENSION_value(x, i);
- if(OBJ_obj2nid(ex->object) == nid) {
- if(idx) {
- *idx = i;
- break;
- } else if(found_ex) {
- /* Found more than one */
- if(crit) *crit = -2;
- return NULL;
- }
- found_ex = ex;
- }
- }
- if(found_ex) {
- /* Found it */
- if(crit) *crit = X509_EXTENSION_get_critical(found_ex);
- return X509V3_EXT_d2i(found_ex);
- }
-
- /* Extension not found */
- if(idx) *idx = -1;
- if(crit) *crit = -1;
- return NULL;
+ int lastpos, i;
+ X509_EXTENSION *ex, *found_ex = NULL;
+ if (!x) {
+ if (idx)
+ *idx = -1;
+ if (crit)
+ *crit = -1;
+ return NULL;
+ }
+ if (idx)
+ lastpos = *idx + 1;
+ else
+ lastpos = 0;
+ if (lastpos < 0)
+ lastpos = 0;
+ for (i = lastpos; i < sk_X509_EXTENSION_num(x); i++) {
+ ex = sk_X509_EXTENSION_value(x, i);
+ if (OBJ_obj2nid(X509_EXTENSION_get_object(ex)) == nid) {
+ if (idx) {
+ *idx = i;
+ found_ex = ex;
+ break;
+ } else if (found_ex) {
+ /* Found more than one */
+ if (crit)
+ *crit = -2;
+ return NULL;
+ }
+ found_ex = ex;
+ }
+ }
+ if (found_ex) {
+ /* Found it */
+ if (crit)
+ *crit = X509_EXTENSION_get_critical(found_ex);
+ return X509V3_EXT_d2i(found_ex);
+ }
+
+ /* Extension not found */
+ if (idx)
+ *idx = -1;
+ if (crit)
+ *crit = -1;
+ return NULL;
}
-/* This function is a general extension append, replace and delete utility.
+/*
+ * This function is a general extension append, replace and delete utility.
* The precise operation is governed by the 'flags' value. The 'crit' and
* 'value' arguments (if relevant) are the extensions internal structure.
*/
int X509V3_add1_i2d(STACK_OF(X509_EXTENSION) **x, int nid, void *value,
- int crit, unsigned long flags)
+ int crit, unsigned long flags)
{
- int extidx = -1;
- int errcode;
- X509_EXTENSION *ext, *extmp;
- unsigned long ext_op = flags & X509V3_ADD_OP_MASK;
-
- /* If appending we don't care if it exists, otherwise
- * look for existing extension.
- */
- if(ext_op != X509V3_ADD_APPEND)
- extidx = X509v3_get_ext_by_NID(*x, nid, -1);
-
- /* See if extension exists */
- if(extidx >= 0) {
- /* If keep existing, nothing to do */
- if(ext_op == X509V3_ADD_KEEP_EXISTING)
- return 1;
- /* If default then its an error */
- if(ext_op == X509V3_ADD_DEFAULT) {
- errcode = X509V3_R_EXTENSION_EXISTS;
- goto err;
- }
- /* If delete, just delete it */
- if(ext_op == X509V3_ADD_DELETE) {
- if(!sk_X509_EXTENSION_delete(*x, extidx)) return -1;
- return 1;
- }
- } else {
- /* If replace existing or delete, error since
- * extension must exist
- */
- if((ext_op == X509V3_ADD_REPLACE_EXISTING) ||
- (ext_op == X509V3_ADD_DELETE)) {
- errcode = X509V3_R_EXTENSION_NOT_FOUND;
- goto err;
- }
- }
-
- /* If we get this far then we have to create an extension:
- * could have some flags for alternative encoding schemes...
- */
-
- ext = X509V3_EXT_i2d(nid, crit, value);
-
- if(!ext) {
- X509V3err(X509V3_F_X509V3_ADD_I2D, X509V3_R_ERROR_CREATING_EXTENSION);
- return -1;
- }
-
- /* If extension exists replace it.. */
- if(extidx >= 0) {
- extmp = sk_X509_EXTENSION_value(*x, extidx);
- X509_EXTENSION_free(extmp);
- if(!sk_X509_EXTENSION_set(*x, extidx, ext)) return -1;
- return 1;
- }
-
- if(!*x && !(*x = sk_X509_EXTENSION_new_null())) return -1;
- if(!sk_X509_EXTENSION_push(*x, ext)) return -1;
-
- return 1;
-
- err:
- if(!(flags & X509V3_ADD_SILENT))
- X509V3err(X509V3_F_X509V3_ADD_I2D, errcode);
- return 0;
+ int extidx = -1;
+ int errcode;
+ X509_EXTENSION *ext, *extmp;
+ unsigned long ext_op = flags & X509V3_ADD_OP_MASK;
+
+ /*
+ * If appending we don't care if it exists, otherwise look for existing
+ * extension.
+ */
+ if (ext_op != X509V3_ADD_APPEND)
+ extidx = X509v3_get_ext_by_NID(*x, nid, -1);
+
+ /* See if extension exists */
+ if (extidx >= 0) {
+ /* If keep existing, nothing to do */
+ if (ext_op == X509V3_ADD_KEEP_EXISTING)
+ return 1;
+ /* If default then its an error */
+ if (ext_op == X509V3_ADD_DEFAULT) {
+ errcode = X509V3_R_EXTENSION_EXISTS;
+ goto err;
+ }
+ /* If delete, just delete it */
+ if (ext_op == X509V3_ADD_DELETE) {
+ if (!sk_X509_EXTENSION_delete(*x, extidx))
+ return -1;
+ return 1;
+ }
+ } else {
+ /*
+ * If replace existing or delete, error since extension must exist
+ */
+ if ((ext_op == X509V3_ADD_REPLACE_EXISTING) ||
+ (ext_op == X509V3_ADD_DELETE)) {
+ errcode = X509V3_R_EXTENSION_NOT_FOUND;
+ goto err;
+ }
+ }
+
+ /*
+ * If we get this far then we have to create an extension: could have
+ * some flags for alternative encoding schemes...
+ */
+
+ ext = X509V3_EXT_i2d(nid, crit, value);
+
+ if (!ext) {
+ X509V3err(X509V3_F_X509V3_ADD1_I2D,
+ X509V3_R_ERROR_CREATING_EXTENSION);
+ return 0;
+ }
+
+ /* If extension exists replace it.. */
+ if (extidx >= 0) {
+ extmp = sk_X509_EXTENSION_value(*x, extidx);
+ X509_EXTENSION_free(extmp);
+ if (!sk_X509_EXTENSION_set(*x, extidx, ext))
+ return -1;
+ return 1;
+ }
+
+ if (*x == NULL
+ && (*x = sk_X509_EXTENSION_new_null()) == NULL)
+ return -1;
+ if (!sk_X509_EXTENSION_push(*x, ext))
+ return -1;
+
+ return 1;
+
+ err:
+ if (!(flags & X509V3_ADD_SILENT))
+ X509V3err(X509V3_F_X509V3_ADD1_I2D, errcode);
+ return 0;
}
-
-IMPLEMENT_STACK_OF(X509V3_EXT_METHOD)
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