make X509_REQ opaque
[openssl.git] / crypto / x509 / x509_req.c
index baef8790eb94de82d194b53095c1f0b8f580a0a3..70e27b8306d9f35bed3ca99037db097218be9742 100644 (file)
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
  * 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.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/bn.h>
 #include <openssl/evp.h>
 #include <openssl/asn1.h>
+#include <openssl/asn1t.h>
 #include <openssl/x509.h>
+#include "internal/x509_int.h"
 #include <openssl/objects.h>
 #include <openssl/buffer.h>
 #include <openssl/pem.h>
 
 X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
-       {
-       X509_REQ *ret;
-       X509_REQ_INFO *ri;
-       int i;
-       EVP_PKEY *pktmp;
-
-       ret=X509_REQ_new();
-       if (ret == NULL)
-               {
-               X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);
-               goto err;
-               }
-
-       ri=ret->req_info;
-
-       ri->version->length=1;
-       ri->version->data=(unsigned char *)Malloc(1);
-       if (ri->version->data == NULL) goto err;
-       ri->version->data[0]=0; /* version == 0 */
-
-       if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))
-               goto err;
-
-       pktmp = X509_get_pubkey(x);
-       i=X509_REQ_set_pubkey(ret,pktmp);
-       EVP_PKEY_free(pktmp);
-       if (!i) goto err;
-
-       if (pkey != NULL)
-               {
-               if (!X509_REQ_sign(ret,pkey,md))
-                       goto err;
-               }
-       return(ret);
-err:
-       X509_REQ_free(ret);
-       return(NULL);
-       }
+{
+    X509_REQ *ret;
+    X509_REQ_INFO *ri;
+    int i;
+    EVP_PKEY *pktmp;
+
+    ret = X509_REQ_new();
+    if (ret == NULL) {
+        X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    ri = ret->req_info;
+
+    ri->version->length = 1;
+    ri->version->data = OPENSSL_malloc(1);
+    if (ri->version->data == NULL)
+        goto err;
+    ri->version->data[0] = 0;   /* version == 0 */
+
+    if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
+        goto err;
+
+    pktmp = X509_get_pubkey(x);
+    if (pktmp == NULL)
+        goto err;
+    i = X509_REQ_set_pubkey(ret, pktmp);
+    EVP_PKEY_free(pktmp);
+    if (!i)
+        goto err;
+
+    if (pkey != NULL) {
+        if (!X509_REQ_sign(ret, pkey, md))
+            goto err;
+    }
+    return (ret);
+ err:
+    X509_REQ_free(ret);
+    return (NULL);
+}
 
 EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
-       {
-       if ((req == NULL) || (req->req_info == NULL))
-               return(NULL);
-       return(X509_PUBKEY_get(req->req_info->pubkey));
-       }
+{
+    if ((req == NULL) || (req->req_info == NULL))
+        return (NULL);
+    return (X509_PUBKEY_get(req->req_info->pubkey));
+}
 
-/* It seems several organisations had the same idea of including a list of
+int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
+{
+    EVP_PKEY *xk = NULL;
+    int ok = 0;
+
+    xk = X509_REQ_get_pubkey(x);
+    switch (EVP_PKEY_cmp(xk, k)) {
+    case 1:
+        ok = 1;
+        break;
+    case 0:
+        X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
+                X509_R_KEY_VALUES_MISMATCH);
+        break;
+    case -1:
+        X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH);
+        break;
+    case -2:
+#ifndef OPENSSL_NO_EC
+        if (k->type == EVP_PKEY_EC) {
+            X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
+            break;
+        }
+#endif
+#ifndef OPENSSL_NO_DH
+        if (k->type == EVP_PKEY_DH) {
+            /* No idea */
+            X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
+                    X509_R_CANT_CHECK_DH_KEY);
+            break;
+        }
+#endif
+        X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE);
+    }
+
+    EVP_PKEY_free(xk);
+    return (ok);
+}
+
+/*
+ * It seems several organisations had the same idea of including a list of
  * extensions in a certificate request. There are at least two OIDs that are
  * used and there may be more: so the list is configurable.
  */
 
-static int ext_nid_list[] = { NID_ms_ext_req, NID_ext_req, NID_undef};
+static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef };
 
 static int *ext_nids = ext_nid_list;
 
 int X509_REQ_extension_nid(int req_nid)
 {
-       int i, nid;
-       for(i = 0; ; i++) {
-               nid = ext_nids[i];
-               if(nid == NID_undef) return 0;
-               else if (req_nid == nid) return 1;
-       }
+    int i, nid;
+    for (i = 0;; i++) {
+        nid = ext_nids[i];
+        if (nid == NID_undef)
+            return 0;
+        else if (req_nid == nid)
+            return 1;
+    }
 }
 
 int *X509_REQ_get_extension_nids(void)
 {
-       return ext_nids;
+    return ext_nids;
 }
-       
+
 void X509_REQ_set_extension_nids(int *nids)
 {
-       ext_nids = nids;
+    ext_nids = nids;
 }
 
 STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
 {
-       X509_ATTRIBUTE *attr;
-       STACK_OF(X509_ATTRIBUTE) *sk;
-       ASN1_TYPE *ext = NULL;
-       int i;
-       unsigned char *p;
-       if ((req == NULL) || (req->req_info == NULL))
-               return(NULL);
-       sk=req->req_info->attributes;
-        if (!sk) return NULL;
-       for(i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
-               attr = sk_X509_ATTRIBUTE_value(sk, i);
-               if(X509_REQ_extension_nid(OBJ_obj2nid(attr->object))) {
-                       if(attr->set && sk_ASN1_TYPE_num(attr->value.set))
-                               ext = sk_ASN1_TYPE_value(attr->value.set, 0);
-                       else ext = attr->value.single;
-                       break;
-               }
-       }
-       if(!ext || (ext->type != V_ASN1_SEQUENCE)) return NULL;
-       p = ext->value.sequence->data;
-       return d2i_ASN1_SET_OF_X509_EXTENSION(NULL, &p,
-                       ext->value.sequence->length,
-                       d2i_X509_EXTENSION, X509_EXTENSION_free,
-                       V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
+    X509_ATTRIBUTE *attr;
+    ASN1_TYPE *ext = NULL;
+    int idx, *pnid;
+    const unsigned char *p;
+
+    if ((req == NULL) || (req->req_info == NULL) || !ext_nids)
+        return (NULL);
+    for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
+        idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
+        if (idx == -1)
+            continue;
+        attr = X509_REQ_get_attr(req, idx);
+        ext = X509_ATTRIBUTE_get0_type(attr, 0);
+        break;
+    }
+    if (!ext || (ext->type != V_ASN1_SEQUENCE))
+        return NULL;
+    p = ext->value.sequence->data;
+    return (STACK_OF(X509_EXTENSION) *)
+        ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
+                      ASN1_ITEM_rptr(X509_EXTENSIONS));
 }
 
-/* Add a STACK_OF extensions to a certificate request: allow alternative OIDs
+/*
+ * Add a STACK_OF extensions to a certificate request: allow alternative OIDs
  * in case we want to create a non standard one.
  */
 
 int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
-                               int nid)
+                                int nid)
 {
-       unsigned char *p = NULL, *q;
-       long len;
-       ASN1_TYPE *at = NULL;
-       X509_ATTRIBUTE *attr = NULL;
-       if(!(at = ASN1_TYPE_new()) ||
-               !(at->value.sequence = ASN1_STRING_new())) goto err;
-
-       at->type = V_ASN1_SEQUENCE;
-       /* Generate encoding of extensions */
-       len = i2d_ASN1_SET_OF_X509_EXTENSION(exts, NULL, i2d_X509_EXTENSION,
-                       V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);
-       if(!(p = Malloc(len))) goto err;
-       q = p;
-       i2d_ASN1_SET_OF_X509_EXTENSION(exts, &q, i2d_X509_EXTENSION,
-                       V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);
-       at->value.sequence->data = p;
-       p = NULL;
-       at->value.sequence->length = len;
-       if(!(attr = X509_ATTRIBUTE_new())) goto err;
-       if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
-       if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err;
-       at = NULL;
-       attr->set = 1;
-       attr->object = OBJ_nid2obj(nid);
-       if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err;
-       return 1;
-       err:
-       if(p) Free(p);
-       X509_ATTRIBUTE_free(attr);
-       ASN1_TYPE_free(at);
-       return 0;
+    int extlen;
+    int rv = 0;
+    unsigned char *ext = NULL;
+    /* Generate encoding of extensions */
+    extlen = ASN1_item_i2d((ASN1_VALUE *)exts, &ext,
+                           ASN1_ITEM_rptr(X509_EXTENSIONS));
+    if (extlen <= 0)
+        return 0;
+    rv = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext, extlen);
+    OPENSSL_free(ext);
+    return rv;
 }
+
 /* This is the normal usage: use the "official" OID */
 int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
 {
-       return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
+    return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
 }
 
 /* Request attribute functions */
 
 int X509_REQ_get_attr_count(const X509_REQ *req)
 {
-       return X509at_get_attr_count(req->req_info->attributes);
+    return X509at_get_attr_count(req->req_info->attributes);
 }
 
-int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid,
-                         int lastpos)
+int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
 {
-       return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
+    return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);
 }
 
 int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
-                         int lastpos)
+                             int lastpos)
 {
-       return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
+    return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);
 }
 
 X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
 {
-       return X509at_get_attr(req->req_info->attributes, loc);
+    return X509at_get_attr(req->req_info->attributes, loc);
 }
 
 X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
 {
-       return X509at_delete_attr(req->req_info->attributes, loc);
+    return X509at_delete_attr(req->req_info->attributes, loc);
 }
 
 int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
 {
-       if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1;
-       return 0;
+    if (X509at_add1_attr(&req->req_info->attributes, attr))
+        return 1;
+    return 0;
 }
 
 int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
-                       ASN1_OBJECT *obj, int type,
-                       unsigned char *bytes, int len)
+                              const ASN1_OBJECT *obj, int type,
+                              const unsigned char *bytes, int len)
 {
-       if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
-                               type, bytes, len)) return 1;
-       return 0;
+    if (X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,
+                                type, bytes, len))
+        return 1;
+    return 0;
 }
 
 int X509_REQ_add1_attr_by_NID(X509_REQ *req,
-                       int nid, int type,
-                       unsigned char *bytes, int len)
+                              int nid, int type,
+                              const unsigned char *bytes, int len)
 {
-       if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
-                               type, bytes, len)) return 1;
-       return 0;
+    if (X509at_add1_attr_by_NID(&req->req_info->attributes, nid,
+                                type, bytes, len))
+        return 1;
+    return 0;
 }
 
 int X509_REQ_add1_attr_by_txt(X509_REQ *req,
-                       char *attrname, int type,
-                       unsigned char *bytes, int len)
+                              const char *attrname, int type,
+                              const unsigned char *bytes, int len)
+{
+    if (X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
+                                type, bytes, len))
+        return 1;
+    return 0;
+}
+
+long X509_REQ_get_version(X509_REQ *req)
+{
+    return ASN1_INTEGER_get(req->req_info->version);
+}
+
+X509_NAME *X509_REQ_get_subject_name(X509_REQ *req)
 {
-       if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
-                               type, bytes, len)) return 1;
-       return 0;
+    return req->req_info->subject;
 }