/* v3_lib.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 1999.
*/
/* ====================================================================
}
static int ext_cmp(const X509V3_EXT_METHOD * const *a,
- const X509V3_EXT_METHOD * const *b)
+ const X509V3_EXT_METHOD * const *b)
{
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);
+
+const X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid)
{
- X509V3_EXT_METHOD tmp, *t = &tmp, **ret;
+ X509V3_EXT_METHOD tmp;
+ const X509V3_EXT_METHOD *t = &tmp, * const *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);
+ 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);
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;
int X509V3_EXT_add_alias(int nid_to, int nid_from)
{
- X509V3_EXT_METHOD *ext, *tmpext;
+ const X509V3_EXT_METHOD *ext;
+ X509V3_EXT_METHOD *tmpext;
+
if(!(ext = X509V3_EXT_get_nid(nid_from))) {
X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS,X509V3_R_EXTENSION_NOT_FOUND);
return 0;
void *X509V3_EXT_d2i(X509_EXTENSION *ext)
{
- X509V3_EXT_METHOD *method;
- unsigned char *p;
- if(!(method = X509V3_EXT_get(ext)) || !method->d2i) return NULL;
+ const X509V3_EXT_METHOD *method;
+ const 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, ASN1_ITEM_ptr(method->it));
return method->d2i(NULL, &p, ext->value->length);
}
if(OBJ_obj2nid(ex->object) == nid) {
if(idx) {
*idx = i;
+ found_ex = ex;
break;
} else if(found_ex) {
/* Found more than one */
}
if(found_ex) {
/* Found it */
- if(crit) *crit = found_ex->critical;
+ 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.
+ * 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 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 && !(*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_ADD1_I2D, errcode);
+ return 0;
+}
+
IMPLEMENT_STACK_OF(X509V3_EXT_METHOD)
projects / openssl.git / blobdiff