1 files changed, 164 insertions, 1 deletions

diff --git a/src/lib/libcrypto/x509/x509_req.c b/src/lib/libcrypto/x509/x509_req.c
index 2ef94decd1..baef8790eb 100644
--- a/src/lib/libcrypto/x509/x509_req.c
+++ b/src/lib/libcrypto/x509/x509_req.c
@@ -66,7 +66,7 @@
 #include <openssl/buffer.h>
 #include <openssl/pem.h>
 
-X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, EVP_MD *md)
+X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
         {
         X509_REQ *ret;
         X509_REQ_INFO *ri;
@@ -113,3 +113,166 @@ EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
         return(X509_PUBKEY_get(req->req_info->pubkey));
         }
 
+/* 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->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);
+}
+
+/* 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 = 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;
+}
+/* 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,
+                        ASN1_OBJECT *obj, int type,
+                        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,
+                        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,
+                        char *attrname, int type,
+                        unsigned char *bytes, int len)
+{
+        if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,
+                                type, bytes, len)) return 1;
+        return 0;
+}