Add functionality to help making self-signed certificate.
[openssl.git] / crypto / x509 / x509_req.c
index c1f10c2428616a64fd5b93fede1be217aeebd81a..b4ad53431e2d88719db4e4d6b459a1b9c80f822e 100644 (file)
@@ -1,5 +1,5 @@
 /* crypto/x509/x509_req.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
 
 #include <stdio.h>
 #include "cryptlib.h"
-#include "bn.h"
-#include "evp.h"
-#include "asn1.h"
-#include "x509.h"
-#include "objects.h"
-#include "buffer.h"
-#include "pem.h"
-
-X509_REQ *X509_to_X509_REQ(x,pkey)
-X509 *x;
-EVP_PKEY *pkey;
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+#include <openssl/asn1.h>
+#include <openssl/x509.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)
@@ -84,28 +83,236 @@ EVP_PKEY *pkey;
        ri=ret->req_info;
 
        ri->version->length=1;
-       ri->version->data=(unsigned char *)Malloc(1);
+       ri->version->data=(unsigned char *)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;
 
-       i=X509_REQ_set_pubkey(ret,X509_get_pubkey(x));
+       pktmp = X509_get_pubkey(x);
+       i=X509_REQ_set_pubkey(ret,pktmp);
+       EVP_PKEY_free(pktmp);
        if (!i) goto err;
 
-/* NEEDS FIXING EAY EAY EAY */
-       if (!X509_REQ_sign(ret,pkey,EVP_md5()))
-               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(req)
-X509_REQ *req;
+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));
        }
 
+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_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 *X509_REQ_get_extension_nids(void)
+{
+       return ext_nids;
+}
+       
+void X509_REQ_set_extension_nids(int *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->single) ext = attr->value.single;
+                       else if(sk_ASN1_TYPE_num(attr->value.set))
+                               ext = sk_ASN1_TYPE_value(attr->value.set, 0);
+                       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);
+}
+
+/* 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)
+{
+       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 = OPENSSL_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->single = 0;
+       attr->object = OBJ_nid2obj(nid);
+       if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err;
+       return 1;
+       err:
+       if(p) OPENSSL_free(p);
+       X509_ATTRIBUTE_free(attr);
+       ASN1_TYPE_free(at);
+       return 0;
+}
+/* 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);
+}
+
+/* Request attribute functions */
+
+int X509_REQ_get_attr_count(const X509_REQ *req)
+{
+       return X509at_get_attr_count(req->req_info->attributes);
+}
+
+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);
+}
+
+int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
+                         int 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);
+}
+
+X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int 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;
+}
+
+int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
+                       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;
+}
+
+int X509_REQ_add1_attr_by_NID(X509_REQ *req,
+                       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;
+}
+
+int X509_REQ_add1_attr_by_txt(X509_REQ *req,
+                       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;
+}