s4:dsdb/schema: add dsdb_syntax_UNICODE_validate_ldb()
[ira/wip.git] / source4 / dsdb / schema / schema_syntax.c
index 97cd0020a973b95ec580499f9cd0cbfda38c5ade..b3f8891adeec68a9d7c76220ce5bfc02144e6800 100644 (file)
 #include "includes.h"
 #include "dsdb/samdb/samdb.h"
 #include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "librpc/gen_ndr/ndr_misc.h"
 #include "lib/ldb/include/ldb.h"
+#include "lib/ldb/include/ldb_errors.h"
 #include "system/time.h"
-#include "lib/charset/charset.h"
+#include "../lib/util/charset/charset.h"
 #include "librpc/ndr/libndr.h"
-#include "param/param.h"
 
-static WERROR dsdb_syntax_FOOBAR_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_FOOBAR_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                               const struct dsdb_schema *schema,
                                                const struct dsdb_attribute *attr,
                                                const struct drsuapi_DsReplicaAttribute *in,
                                                TALLOC_CTX *mem_ctx,
@@ -62,7 +65,8 @@ static WERROR dsdb_syntax_FOOBAR_drsuapi_to_ldb(const struct dsdb_schema *schema
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_FOOBAR_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_FOOBAR_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                               const struct dsdb_schema *schema,
                                                const struct dsdb_attribute *attr,
                                                const struct ldb_message_element *in,
                                                TALLOC_CTX *mem_ctx,
@@ -71,7 +75,28 @@ static WERROR dsdb_syntax_FOOBAR_ldb_to_drsuapi(const struct dsdb_schema *schema
        return WERR_FOOBAR;
 }
 
-static WERROR dsdb_syntax_BOOL_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_FOOBAR_validate_ldb(struct ldb_context *ldb,
+                                             const struct dsdb_schema *schema,
+                                             const struct dsdb_attribute *attr,
+                                             const struct ldb_message_element *in)
+{
+       return WERR_FOOBAR;
+}
+
+static WERROR dsdb_syntax_ALLOW_validate_ldb(struct ldb_context *ldb,
+                                            const struct dsdb_schema *schema,
+                                            const struct dsdb_attribute *attr,
+                                            const struct ldb_message_element *in)
+{
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_BOOL_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                             const struct dsdb_schema *schema,
                                              const struct dsdb_attribute *attr,
                                              const struct drsuapi_DsReplicaAttribute *in,
                                              TALLOC_CTX *mem_ctx,
@@ -115,7 +140,8 @@ static WERROR dsdb_syntax_BOOL_drsuapi_to_ldb(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_BOOL_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_BOOL_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                             const struct dsdb_schema *schema,
                                              const struct dsdb_attribute *attr,
                                              const struct ldb_message_element *in,
                                              TALLOC_CTX *mem_ctx,
@@ -156,7 +182,37 @@ static WERROR dsdb_syntax_BOOL_ldb_to_drsuapi(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_INT32_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_BOOL_validate_ldb(struct ldb_context *ldb,
+                                           const struct dsdb_schema *schema,
+                                           const struct dsdb_attribute *attr,
+                                           const struct ldb_message_element *in)
+{
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               int t, f;
+
+               t = strncmp("TRUE",
+                           (const char *)in->values[i].data,
+                           in->values[i].length);
+               f = strncmp("FALSE",
+                           (const char *)in->values[i].data,
+                           in->values[i].length);
+
+               if (t != 0 && f != 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_INT32_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                              const struct dsdb_schema *schema,
                                               const struct dsdb_attribute *attr,
                                               const struct drsuapi_DsReplicaAttribute *in,
                                               TALLOC_CTX *mem_ctx,
@@ -195,7 +251,8 @@ static WERROR dsdb_syntax_INT32_drsuapi_to_ldb(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_INT32_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_INT32_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                              const struct dsdb_schema *schema,
                                               const struct dsdb_attribute *attr,
                                               const struct ldb_message_element *in,
                                               TALLOC_CTX *mem_ctx,
@@ -226,7 +283,9 @@ static WERROR dsdb_syntax_INT32_ldb_to_drsuapi(const struct dsdb_schema *schema,
                blobs[i] = data_blob_talloc(blobs, NULL, 4);
                W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
 
-               v = strtol((const char *)in->values[i].data, NULL, 10);
+               /* We've to use "strtoll" here to have the intended overflows.
+                * Otherwise we may get "LONG_MAX" and the conversion is wrong. */
+               v = (int32_t) strtoll((char *)in->values[i].data, NULL, 0);
 
                SIVALS(blobs[i].data, 0, v);
        }
@@ -234,7 +293,55 @@ static WERROR dsdb_syntax_INT32_ldb_to_drsuapi(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_INT64_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_INT32_validate_ldb(struct ldb_context *ldb,
+                                            const struct dsdb_schema *schema,
+                                            const struct dsdb_attribute *attr,
+                                            const struct ldb_message_element *in)
+{
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               long v;
+               char buf[sizeof("-2147483648")];
+               char *end = NULL;
+
+               ZERO_STRUCT(buf);
+               if (in->values[i].length >= sizeof(buf)) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               memcpy(buf, in->values[i].data, in->values[i].length);
+               errno = 0;
+               v = strtol(buf, &end, 10);
+               if (errno != 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+               if (end && end[0] != '\0') {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               if (attr->rangeLower) {
+                       if ((int32_t)v < (int32_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+
+               if (attr->rangeUpper) {
+                       if ((int32_t)v > (int32_t)*attr->rangeUpper) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_INT64_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                              const struct dsdb_schema *schema,
                                               const struct dsdb_attribute *attr,
                                               const struct drsuapi_DsReplicaAttribute *in,
                                               TALLOC_CTX *mem_ctx,
@@ -273,7 +380,8 @@ static WERROR dsdb_syntax_INT64_drsuapi_to_ldb(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_INT64_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_INT64_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                              const struct dsdb_schema *schema,
                                               const struct dsdb_attribute *attr,
                                               const struct ldb_message_element *in,
                                               TALLOC_CTX *mem_ctx,
@@ -312,7 +420,54 @@ static WERROR dsdb_syntax_INT64_ldb_to_drsuapi(const struct dsdb_schema *schema,
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_INT64_validate_ldb(struct ldb_context *ldb,
+                                            const struct dsdb_schema *schema,
+                                            const struct dsdb_attribute *attr,
+                                            const struct ldb_message_element *in)
+{
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               long long v;
+               char buf[sizeof("-9223372036854775808")];
+               char *end = NULL;
+
+               ZERO_STRUCT(buf);
+               if (in->values[i].length >= sizeof(buf)) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+               memcpy(buf, in->values[i].data, in->values[i].length);
+
+               errno = 0;
+               v = strtoll(buf, &end, 10);
+               if (errno != 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+               if (end && end[0] != '\0') {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               if (attr->rangeLower) {
+                       if ((int64_t)v < (int64_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+
+               if (attr->rangeUpper) {
+                       if ((int64_t)v > (int64_t)*attr->rangeUpper) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+       }
+
+       return WERR_OK;
+}
+static WERROR dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                   const struct dsdb_schema *schema,
                                                    const struct dsdb_attribute *attr,
                                                    const struct drsuapi_DsReplicaAttribute *in,
                                                    TALLOC_CTX *mem_ctx,
@@ -362,7 +517,8 @@ static WERROR dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb(const struct dsdb_schema *sc
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                                   const struct dsdb_schema *schema,
                                                    const struct dsdb_attribute *attr,
                                                    const struct ldb_message_element *in,
                                                    TALLOC_CTX *mem_ctx,
@@ -404,7 +560,56 @@ static WERROR dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi(const struct dsdb_schema *sc
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_NTTIME_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_NTTIME_UTC_validate_ldb(struct ldb_context *ldb,
+                                                 const struct dsdb_schema *schema,
+                                                 const struct dsdb_attribute *attr,
+                                                 const struct ldb_message_element *in)
+{
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               time_t t;
+               char buf[sizeof("090826075717Z")];
+
+               ZERO_STRUCT(buf);
+               if (in->values[i].length >= sizeof(buf)) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+               memcpy(buf, in->values[i].data, in->values[i].length);
+
+               errno = 0;
+               t = ldb_string_utc_to_time(buf);
+               if (errno != 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               if (attr->rangeLower) {
+                       if ((int32_t)t < (int32_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+
+               if (attr->rangeUpper) {
+                       if ((int32_t)t > (int32_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+
+               /*
+                * TODO: verify the comment in the
+                * dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb() function!
+                */
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_NTTIME_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                               const struct dsdb_schema *schema,
                                                const struct dsdb_attribute *attr,
                                                const struct drsuapi_DsReplicaAttribute *in,
                                                TALLOC_CTX *mem_ctx,
@@ -446,7 +651,8 @@ static WERROR dsdb_syntax_NTTIME_drsuapi_to_ldb(const struct dsdb_schema *schema
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_NTTIME_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_NTTIME_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                               const struct dsdb_schema *schema,
                                                const struct dsdb_attribute *attr,
                                                const struct ldb_message_element *in,
                                                TALLOC_CTX *mem_ctx,
@@ -472,13 +678,17 @@ static WERROR dsdb_syntax_NTTIME_ldb_to_drsuapi(const struct dsdb_schema *schema
        for (i=0; i < in->num_values; i++) {
                NTTIME v;
                time_t t;
+               int ret;
 
                out->value_ctr.values[i].blob   = &blobs[i];
 
                blobs[i] = data_blob_talloc(blobs, NULL, 8);
                W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
 
-               t = ldb_string_to_time((const char *)in->values[i].data);
+               ret = ldb_val_to_time(&in->values[i], &t);
+               if (ret != LDB_SUCCESS) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
                unix_to_nt_time(&v, t);
                v /= 10000000;
 
@@ -488,7 +698,44 @@ static WERROR dsdb_syntax_NTTIME_ldb_to_drsuapi(const struct dsdb_schema *schema
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DATA_BLOB_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_NTTIME_validate_ldb(struct ldb_context *ldb,
+                                             const struct dsdb_schema *schema,
+                                             const struct dsdb_attribute *attr,
+                                             const struct ldb_message_element *in)
+{
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               time_t t;
+               int ret;
+
+               ret = ldb_val_to_time(&in->values[i], &t);
+               if (ret != LDB_SUCCESS) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               if (attr->rangeLower) {
+                       if ((int32_t)t < (int32_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+
+               if (attr->rangeUpper) {
+                       if ((int32_t)t > (int32_t)*attr->rangeLower) {
+                               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+                       }
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_DATA_BLOB_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                  const struct dsdb_schema *schema,
                                                   const struct dsdb_attribute *attr,
                                                   const struct drsuapi_DsReplicaAttribute *in,
                                                   TALLOC_CTX *mem_ctx,
@@ -521,7 +768,8 @@ static WERROR dsdb_syntax_DATA_BLOB_drsuapi_to_ldb(const struct dsdb_schema *sch
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DATA_BLOB_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_DATA_BLOB_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                                  const struct dsdb_schema *schema,
                                                   const struct dsdb_attribute *attr,
                                                   const struct ldb_message_element *in,
                                                   TALLOC_CTX *mem_ctx,
@@ -554,11 +802,65 @@ static WERROR dsdb_syntax_DATA_BLOB_ldb_to_drsuapi(const struct dsdb_schema *sch
        return WERR_OK;
 }
 
-static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(const struct dsdb_schema *schema,
-                                                 const struct dsdb_attribute *attr,
-                                                 const struct drsuapi_DsReplicaAttribute *in,
-                                                 TALLOC_CTX *mem_ctx,
-                                                 struct ldb_message_element *out)
+static WERROR dsdb_syntax_DATA_BLOB_validate_one_val(struct ldb_context *ldb,
+                                                    const struct dsdb_schema *schema,
+                                                    const struct dsdb_attribute *attr,
+                                                    const struct ldb_val *val)
+{
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       if (attr->rangeLower) {
+               if ((uint32_t)val->length < (uint32_t)*attr->rangeLower) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+       }
+
+       if (attr->rangeUpper) {
+               if ((uint32_t)val->length > (uint32_t)*attr->rangeUpper) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_DATA_BLOB_validate_ldb(struct ldb_context *ldb,
+                                                const struct dsdb_schema *schema,
+                                                const struct dsdb_attribute *attr,
+                                                const struct ldb_message_element *in)
+{
+       uint32_t i;
+       WERROR status;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               if (in->values[i].length == 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               status = dsdb_syntax_DATA_BLOB_validate_one_val(ldb,
+                                                               schema,
+                                                               attr,
+                                                               &in->values[i]);
+               if (!W_ERROR_IS_OK(status)) {
+                       return status;
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR _dsdb_syntax_auto_OID_drsuapi_to_ldb(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct drsuapi_DsReplicaAttribute *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                  struct ldb_message_element *out)
 {
        uint32_t i;
 
@@ -573,7 +875,8 @@ static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(const struct dsdb_schema *sche
        for (i=0; i < out->num_values; i++) {
                uint32_t v;
                const struct dsdb_class *c;
-               const char *str;
+               const struct dsdb_attribute *a;
+               const char *str = NULL;
 
                if (in->value_ctr.values[i].blob == NULL) {
                        return WERR_FOOBAR;
@@ -585,12 +888,15 @@ static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(const struct dsdb_schema *sche
 
                v = IVAL(in->value_ctr.values[i].blob->data, 0);
 
-               c = dsdb_class_by_governsID_id(schema, v);
-               if (!c) {
-                       return WERR_FOOBAR;
+               if ((c = dsdb_class_by_governsID_id(schema, v))) {
+                       str = talloc_strdup(out->values, c->lDAPDisplayName);
+               } else if ((a = dsdb_attribute_by_attributeID_id(schema, v))) {
+                       str = talloc_strdup(out->values, a->lDAPDisplayName);
+               } else {
+                       WERROR werr;
+                       werr = dsdb_schema_pfm_oid_from_attid(schema->prefixmap, v, out->values, &str);
+                       W_ERROR_NOT_OK_RETURN(werr);
                }
-
-               str = talloc_strdup(out->values, c->lDAPDisplayName);
                W_ERROR_HAVE_NO_MEMORY(str);
 
                /* the values need to be reversed */
@@ -600,7 +906,8 @@ static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(const struct dsdb_schema *sche
        return WERR_OK;
 }
 
-static WERROR _dsdb_syntax_OID_oid_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                 const struct dsdb_schema *schema,
                                                  const struct dsdb_attribute *attr,
                                                  const struct drsuapi_DsReplicaAttribute *in,
                                                  TALLOC_CTX *mem_ctx,
@@ -618,7 +925,7 @@ static WERROR _dsdb_syntax_OID_oid_drsuapi_to_ldb(const struct dsdb_schema *sche
 
        for (i=0; i < out->num_values; i++) {
                uint32_t v;
-               WERROR status;
+               const struct dsdb_class *c;
                const char *str;
 
                if (in->value_ctr.values[i].blob == NULL) {
@@ -631,32 +938,30 @@ static WERROR _dsdb_syntax_OID_oid_drsuapi_to_ldb(const struct dsdb_schema *sche
 
                v = IVAL(in->value_ctr.values[i].blob->data, 0);
 
-               status = dsdb_map_int2oid(schema, v, out->values, &str);
-               W_ERROR_NOT_OK_RETURN(status);
+               c = dsdb_class_by_governsID_id(schema, v);
+               if (!c) {
+                       return WERR_FOOBAR;
+               }
 
-               out->values[i] = data_blob_string_const(str);
+               str = talloc_strdup(out->values, c->lDAPDisplayName);
+               W_ERROR_HAVE_NO_MEMORY(str);
+
+               /* the values need to be reversed */
+               out->values[out->num_values - (i + 1)] = data_blob_string_const(str);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_OID_drsuapi_to_ldb(const struct dsdb_schema *schema,
-                                            const struct dsdb_attribute *attr,
-                                            const struct drsuapi_DsReplicaAttribute *in,
-                                            TALLOC_CTX *mem_ctx,
-                                            struct ldb_message_element *out)
+static WERROR _dsdb_syntax_OID_attr_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct drsuapi_DsReplicaAttribute *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                  struct ldb_message_element *out)
 {
        uint32_t i;
 
-       switch (attr->attributeID_id) {
-       case DRSUAPI_ATTRIBUTE_objectClass:
-               return _dsdb_syntax_OID_obj_drsuapi_to_ldb(schema, attr, in, mem_ctx, out);
-       case DRSUAPI_ATTRIBUTE_governsID:
-       case DRSUAPI_ATTRIBUTE_attributeID:
-       case DRSUAPI_ATTRIBUTE_attributeSyntax:
-               return _dsdb_syntax_OID_oid_drsuapi_to_ldb(schema, attr, in, mem_ctx, out);
-       }
-
        out->flags      = 0;
        out->name       = talloc_strdup(mem_ctx, attr->lDAPDisplayName);
        W_ERROR_HAVE_NO_MEMORY(out->name);
@@ -667,8 +972,8 @@ static WERROR dsdb_syntax_OID_drsuapi_to_ldb(const struct dsdb_schema *schema,
 
        for (i=0; i < out->num_values; i++) {
                uint32_t v;
-               const char *name;
-               char *str;
+               const struct dsdb_attribute *a;
+               const char *str;
 
                if (in->value_ctr.values[i].blob == NULL) {
                        return WERR_FOOBAR;
@@ -680,68 +985,310 @@ static WERROR dsdb_syntax_OID_drsuapi_to_ldb(const struct dsdb_schema *schema,
 
                v = IVAL(in->value_ctr.values[i].blob->data, 0);
 
-               name = dsdb_lDAPDisplayName_by_id(schema, v);
-               if (!name) {
+               a = dsdb_attribute_by_attributeID_id(schema, v);
+               if (!a) {
                        return WERR_FOOBAR;
                }
 
-               str = talloc_strdup(out->values, name);
+               str = talloc_strdup(out->values, a->lDAPDisplayName);
                W_ERROR_HAVE_NO_MEMORY(str);
 
-               out->values[i] = data_blob_string_const(str);
+               /* the values need to be reversed */
+               out->values[out->num_values - (i + 1)] = data_blob_string_const(str);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_OID_ldb_to_drsuapi(const struct dsdb_schema *schema,
-                                            const struct dsdb_attribute *attr,
-                                            const struct ldb_message_element *in,
-                                            TALLOC_CTX *mem_ctx,
-                                            struct drsuapi_DsReplicaAttribute *out)
+static WERROR _dsdb_syntax_OID_oid_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                 const struct dsdb_schema *schema,
+                                                 const struct dsdb_attribute *attr,
+                                                 const struct drsuapi_DsReplicaAttribute *in,
+                                                 TALLOC_CTX *mem_ctx,
+                                                 struct ldb_message_element *out)
 {
        uint32_t i;
-       DATA_BLOB *blobs;
 
-       if (attr->attributeID_id == 0xFFFFFFFF) {
-               return WERR_FOOBAR;
-       }
+       out->flags      = 0;
+       out->name       = talloc_strdup(mem_ctx, attr->lDAPDisplayName);
+       W_ERROR_HAVE_NO_MEMORY(out->name);
 
-       switch (attr->attributeID_id) {
-       case DRSUAPI_ATTRIBUTE_objectClass:
-       case DRSUAPI_ATTRIBUTE_governsID:
-       case DRSUAPI_ATTRIBUTE_attributeID:
-       case DRSUAPI_ATTRIBUTE_attributeSyntax:
-               return dsdb_syntax_FOOBAR_ldb_to_drsuapi(schema, attr, in, mem_ctx, out);
+       out->num_values = in->value_ctr.num_values;
+       out->values     = talloc_array(mem_ctx, struct ldb_val, out->num_values);
+       W_ERROR_HAVE_NO_MEMORY(out->values);
+
+       for (i=0; i < out->num_values; i++) {
+               uint32_t attid;
+               WERROR status;
+               const char *oid;
+
+               if (in->value_ctr.values[i].blob == NULL) {
+                       return WERR_FOOBAR;
+               }
+
+               if (in->value_ctr.values[i].blob->length != 4) {
+                       return WERR_FOOBAR;
+               }
+
+               attid = IVAL(in->value_ctr.values[i].blob->data, 0);
+
+               status = dsdb_schema_pfm_oid_from_attid(schema->prefixmap, attid, out->values, &oid);
+               W_ERROR_NOT_OK_RETURN(status);
+
+               out->values[i] = data_blob_string_const(oid);
        }
 
-       out->attid                      = attr->attributeID_id;
-       out->value_ctr.num_values       = in->num_values;
-       out->value_ctr.values           = talloc_array(mem_ctx,
-                                                      struct drsuapi_DsAttributeValue,
-                                                      in->num_values);
+       return WERR_OK;
+}
+
+static WERROR _dsdb_syntax_auto_OID_ldb_to_drsuapi(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct ldb_message_element *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                 struct drsuapi_DsReplicaAttribute *out)
+{
+        uint32_t i;
+        DATA_BLOB *blobs;
+
+        out->attid= attr->attributeID_id;
+        out->value_ctr.num_values= in->num_values;
+        out->value_ctr.values= talloc_array(mem_ctx,
+                                            struct drsuapi_DsAttributeValue,
+                                            in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);
+
+        blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(blobs);
+
+        for (i=0; i < in->num_values; i++) {
+               const struct dsdb_class *obj_class;
+               const struct dsdb_attribute *obj_attr;
+               struct ldb_val *v;
+
+               out->value_ctr.values[i].blob= &blobs[i];
+
+               blobs[i] = data_blob_talloc(blobs, NULL, 4);
+               W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
+
+               /* in DRS windows puts the classes in the opposite
+                  order to the order used in ldap */
+               v = &in->values[(in->num_values-1)-i];
+
+               if ((obj_class = dsdb_class_by_lDAPDisplayName_ldb_val(schema, v))) {
+                       SIVAL(blobs[i].data, 0, obj_class->governsID_id);
+               } else if ((obj_attr = dsdb_attribute_by_lDAPDisplayName_ldb_val(schema, v))) {
+                       SIVAL(blobs[i].data, 0, obj_attr->attributeID_id);
+               } else {
+                       uint32_t attid;
+                       WERROR werr;
+                       werr = dsdb_schema_pfm_make_attid(schema->prefixmap,
+                                                         (const char *)v->data,
+                                                         &attid);
+                       W_ERROR_NOT_OK_RETURN(werr);
+                       SIVAL(blobs[i].data, 0, attid);
+               }
+
+        }
+
+
+        return WERR_OK;
+}
+
+static WERROR _dsdb_syntax_OID_obj_ldb_to_drsuapi(struct ldb_context *ldb,
+                                                 const struct dsdb_schema *schema,
+                                                 const struct dsdb_attribute *attr,
+                                                 const struct ldb_message_element *in,
+                                                 TALLOC_CTX *mem_ctx,
+                                                 struct drsuapi_DsReplicaAttribute *out)
+{
+        uint32_t i;
+        DATA_BLOB *blobs;
+
+        out->attid= attr->attributeID_id;
+        out->value_ctr.num_values= in->num_values;
+        out->value_ctr.values= talloc_array(mem_ctx,
+                                            struct drsuapi_DsAttributeValue,
+                                            in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);
+
+        blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(blobs);
+
+        for (i=0; i < in->num_values; i++) {
+               const struct dsdb_class *obj_class;
+
+               out->value_ctr.values[i].blob= &blobs[i];
+
+               blobs[i] = data_blob_talloc(blobs, NULL, 4);
+               W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
+
+               /* in DRS windows puts the classes in the opposite
+                  order to the order used in ldap */
+               obj_class = dsdb_class_by_lDAPDisplayName(schema,
+                                                         (const char *)in->values[(in->num_values-1)-i].data);
+               if (!obj_class) {
+                       return WERR_FOOBAR;
+               }
+               SIVAL(blobs[i].data, 0, obj_class->governsID_id);
+        }
+
+
+        return WERR_OK;
+}
+
+static WERROR _dsdb_syntax_OID_attr_ldb_to_drsuapi(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct ldb_message_element *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                  struct drsuapi_DsReplicaAttribute *out)
+{
+        uint32_t i;
+        DATA_BLOB *blobs;
+
+        out->attid= attr->attributeID_id;
+        out->value_ctr.num_values= in->num_values;
+        out->value_ctr.values= talloc_array(mem_ctx,
+                                            struct drsuapi_DsAttributeValue,
+                                            in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);
+
+        blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
+        W_ERROR_HAVE_NO_MEMORY(blobs);
+
+        for (i=0; i < in->num_values; i++) {
+               const struct dsdb_attribute *obj_attr;
+
+               out->value_ctr.values[i].blob= &blobs[i];
+
+               blobs[i] = data_blob_talloc(blobs, NULL, 4);
+               W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
+
+               obj_attr = dsdb_attribute_by_lDAPDisplayName(schema, (const char *)in->values[i].data);
+               if (!obj_attr) {
+                       return WERR_FOOBAR;
+               }
+               SIVAL(blobs[i].data, 0, obj_attr->attributeID_id);
+        }
+
+
+        return WERR_OK;
+}
+
+static WERROR _dsdb_syntax_OID_oid_ldb_to_drsuapi(struct ldb_context *ldb,
+                                                 const struct dsdb_schema *schema,
+                                                 const struct dsdb_attribute *attr,
+                                                 const struct ldb_message_element *in,
+                                                 TALLOC_CTX *mem_ctx,
+                                                 struct drsuapi_DsReplicaAttribute *out)
+{
+       uint32_t i;
+       DATA_BLOB *blobs;
+
+       out->attid= attr->attributeID_id;
+       out->value_ctr.num_values= in->num_values;
+       out->value_ctr.values= talloc_array(mem_ctx,
+                                           struct drsuapi_DsAttributeValue,
+                                           in->num_values);
        W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);
 
        blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
        W_ERROR_HAVE_NO_MEMORY(blobs);
 
        for (i=0; i < in->num_values; i++) {
-               uint32_t v;
+               uint32_t attid;
+               WERROR status;
 
-               out->value_ctr.values[i].blob   = &blobs[i];
+               out->value_ctr.values[i].blob= &blobs[i];
 
                blobs[i] = data_blob_talloc(blobs, NULL, 4);
                W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
 
-               v = strtol((const char *)in->values[i].data, NULL, 10);
+               status = dsdb_schema_pfm_make_attid(schema->prefixmap,
+                                                   (const char *)in->values[i].data,
+                                                   &attid);
+               W_ERROR_NOT_OK_RETURN(status);
 
-               SIVAL(blobs[i].data, 0, v);
+               SIVAL(blobs[i].data, 0, attid);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_OID_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                            const struct dsdb_schema *schema,
+                                            const struct dsdb_attribute *attr,
+                                            const struct drsuapi_DsReplicaAttribute *in,
+                                            TALLOC_CTX *mem_ctx,
+                                            struct ldb_message_element *out)
+{
+       switch (attr->attributeID_id) {
+       case DRSUAPI_ATTRIBUTE_objectClass:
+       case DRSUAPI_ATTRIBUTE_subClassOf:
+       case DRSUAPI_ATTRIBUTE_auxiliaryClass:
+       case DRSUAPI_ATTRIBUTE_systemAuxiliaryClass:
+       case DRSUAPI_ATTRIBUTE_systemPossSuperiors:
+       case DRSUAPI_ATTRIBUTE_possSuperiors:
+               return _dsdb_syntax_OID_obj_drsuapi_to_ldb(ldb, schema, attr, in, mem_ctx, out);
+       case DRSUAPI_ATTRIBUTE_systemMustContain:
+       case DRSUAPI_ATTRIBUTE_systemMayContain:        
+       case DRSUAPI_ATTRIBUTE_mustContain:
+       case DRSUAPI_ATTRIBUTE_rDNAttId:
+       case DRSUAPI_ATTRIBUTE_transportAddressAttribute:
+       case DRSUAPI_ATTRIBUTE_mayContain:
+               return _dsdb_syntax_OID_attr_drsuapi_to_ldb(ldb, schema, attr, in, mem_ctx, out);
+       case DRSUAPI_ATTRIBUTE_governsID:
+       case DRSUAPI_ATTRIBUTE_attributeID:
+       case DRSUAPI_ATTRIBUTE_attributeSyntax:
+               return _dsdb_syntax_OID_oid_drsuapi_to_ldb(ldb, schema, attr, in, mem_ctx, out);
+       }
+
+       DEBUG(0,(__location__ ": Unknown handling for attributeID_id for %s\n",
+                attr->lDAPDisplayName));
+       return _dsdb_syntax_auto_OID_drsuapi_to_ldb(ldb, schema, attr, in, mem_ctx, out);
+}
+
+static WERROR dsdb_syntax_OID_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                            const struct dsdb_schema *schema,
+                                            const struct dsdb_attribute *attr,
+                                            const struct ldb_message_element *in,
+                                            TALLOC_CTX *mem_ctx,
+                                            struct drsuapi_DsReplicaAttribute *out)
+{
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       switch (attr->attributeID_id) {
+       case DRSUAPI_ATTRIBUTE_objectClass:
+       case DRSUAPI_ATTRIBUTE_subClassOf:
+       case DRSUAPI_ATTRIBUTE_auxiliaryClass:
+       case DRSUAPI_ATTRIBUTE_systemAuxiliaryClass:
+       case DRSUAPI_ATTRIBUTE_systemPossSuperiors:
+       case DRSUAPI_ATTRIBUTE_possSuperiors:
+               return _dsdb_syntax_OID_obj_ldb_to_drsuapi(ldb, schema, attr, in, mem_ctx, out);
+       case DRSUAPI_ATTRIBUTE_systemMustContain:
+       case DRSUAPI_ATTRIBUTE_systemMayContain:        
+       case DRSUAPI_ATTRIBUTE_mustContain:
+       case DRSUAPI_ATTRIBUTE_rDNAttId:
+       case DRSUAPI_ATTRIBUTE_transportAddressAttribute:
+       case DRSUAPI_ATTRIBUTE_mayContain:
+               return _dsdb_syntax_OID_attr_ldb_to_drsuapi(ldb, schema, attr, in, mem_ctx, out);
+       case DRSUAPI_ATTRIBUTE_governsID:
+       case DRSUAPI_ATTRIBUTE_attributeID:
+       case DRSUAPI_ATTRIBUTE_attributeSyntax:
+               return _dsdb_syntax_OID_oid_ldb_to_drsuapi(ldb, schema, attr, in, mem_ctx, out);
+       }
+
+       DEBUG(0,(__location__ ": Unknown handling for attributeID_id for %s\n",
+                attr->lDAPDisplayName));
+
+       return _dsdb_syntax_auto_OID_ldb_to_drsuapi(ldb, schema, attr, in, mem_ctx, out);
+}
+
+static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                const struct dsdb_schema *schema,
                                                 const struct dsdb_attribute *attr,
                                                 const struct drsuapi_DsReplicaAttribute *in,
                                                 TALLOC_CTX *mem_ctx,
@@ -758,7 +1305,6 @@ static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(const struct dsdb_schema *schem
        W_ERROR_HAVE_NO_MEMORY(out->values);
 
        for (i=0; i < out->num_values; i++) {
-               ssize_t ret;
                char *str;
 
                if (in->value_ctr.values[i].blob == NULL) {
@@ -769,12 +1315,12 @@ static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(const struct dsdb_schema *schem
                        return WERR_FOOBAR;
                }
 
-               ret = convert_string_talloc(out->values, schema->iconv_convenience, 
+               if (!convert_string_talloc_convenience(out->values, 
+                                               schema->iconv_convenience, 
                                                                        CH_UTF16, CH_UNIX,
                                            in->value_ctr.values[i].blob->data,
                                            in->value_ctr.values[i].blob->length,
-                                           (void **)&str);
-               if (ret == -1) {
+                                           (void **)&str, NULL, false)) {
                        return WERR_FOOBAR;
                }
 
@@ -784,7 +1330,8 @@ static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(const struct dsdb_schema *schem
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_UNICODE_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_UNICODE_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                                const struct dsdb_schema *schema,
                                                 const struct dsdb_attribute *attr,
                                                 const struct ldb_message_element *in,
                                                 TALLOC_CTX *mem_ctx,
@@ -808,24 +1355,172 @@ static WERROR dsdb_syntax_UNICODE_ldb_to_drsuapi(const struct dsdb_schema *schem
        W_ERROR_HAVE_NO_MEMORY(blobs);
 
        for (i=0; i < in->num_values; i++) {
-               ssize_t ret;
-
                out->value_ctr.values[i].blob   = &blobs[i];
 
-               ret = convert_string_talloc(blobs, schema->iconv_convenience, CH_UNIX, CH_UTF16,
-                                           in->values[i].data,
-                                           in->values[i].length,
-                                           (void **)&blobs[i].data);
-               if (ret == -1) {
-                       return WERR_FOOBAR;
+               if (!convert_string_talloc_convenience(blobs,
+                       schema->iconv_convenience, CH_UNIX, CH_UTF16,
+                       in->values[i].data, in->values[i].length,
+                       (void **)&blobs[i].data, &blobs[i].length, false)) {
+                               return WERR_FOOBAR;
                }
-               blobs[i].length = ret;
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DN_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_UNICODE_validate_one_val(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct ldb_val *val)
+{
+       void *dst = NULL;
+       size_t size;
+       bool ok;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       ok = convert_string_talloc_convenience(ldb,
+                                              schema->iconv_convenience,
+                                              CH_UNIX, CH_UTF16,
+                                              val->data,
+                                              val->length,
+                                              (void **)&dst,
+                                              &size, false);
+       TALLOC_FREE(dst);
+       if (!ok) {
+               return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+       }
+
+       if (attr->rangeLower) {
+               if ((size/2) < *attr->rangeLower) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+       }
+
+       if (attr->rangeUpper) {
+               if ((size/2) > *attr->rangeUpper) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+       }
+
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_UNICODE_validate_ldb(struct ldb_context *ldb,
+                                              const struct dsdb_schema *schema,
+                                              const struct dsdb_attribute *attr,
+                                              const struct ldb_message_element *in)
+{
+       WERROR status;
+       uint32_t i;
+
+       if (attr->attributeID_id == 0xFFFFFFFF) {
+               return WERR_FOOBAR;
+       }
+
+       for (i=0; i < in->num_values; i++) {
+               if (in->values[i].length == 0) {
+                       return WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+               }
+
+               status = dsdb_syntax_UNICODE_validate_one_val(ldb,
+                                                             schema,
+                                                             attr,
+                                                             &in->values[i]);
+               if (!W_ERROR_IS_OK(status)) {
+                       return status;
+               }
+       }
+
+       return WERR_OK;
+}
+
+WERROR dsdb_syntax_one_DN_drsuapi_to_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, 
+                                        const struct dsdb_syntax *syntax, 
+                                        struct smb_iconv_convenience *iconv_convenience,
+                                        const DATA_BLOB *in, DATA_BLOB *out)
+{
+       struct drsuapi_DsReplicaObjectIdentifier3 id3;
+       enum ndr_err_code ndr_err;
+       DATA_BLOB guid_blob;
+       struct ldb_dn *dn;
+       TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+       int ret;
+       NTSTATUS status;
+
+       if (!tmp_ctx) {
+               W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
+       }
+       
+       if (in == NULL) {
+               talloc_free(tmp_ctx);
+               return WERR_FOOBAR;
+       }
+       
+       if (in->length == 0) {
+               talloc_free(tmp_ctx);
+               return WERR_FOOBAR;
+       }
+       
+       
+       /* windows sometimes sends an extra two pad bytes here */
+       ndr_err = ndr_pull_struct_blob(in,
+                                      tmp_ctx, iconv_convenience, &id3,
+                                      (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);
+       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+               status = ndr_map_error2ntstatus(ndr_err);
+               talloc_free(tmp_ctx);
+               return ntstatus_to_werror(status);
+       }
+       
+       dn = ldb_dn_new(tmp_ctx, ldb, id3.dn);
+       if (!dn) {
+               talloc_free(tmp_ctx);
+               /* If this fails, it must be out of memory, as it does not do much parsing */
+               W_ERROR_HAVE_NO_MEMORY(dn);
+       }
+
+       if (!GUID_all_zero(&id3.guid)) {
+               status = GUID_to_ndr_blob(&id3.guid, tmp_ctx, &guid_blob);
+               if (!NT_STATUS_IS_OK(status)) {
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(status);
+               }
+       
+               ret = ldb_dn_set_extended_component(dn, "GUID", &guid_blob);
+               if (ret != LDB_SUCCESS) {
+                       talloc_free(tmp_ctx);
+                       return WERR_FOOBAR;
+               }
+               talloc_free(guid_blob.data);
+       }
+       
+       if (id3.__ndr_size_sid) {
+               DATA_BLOB sid_blob;
+               ndr_err = ndr_push_struct_blob(&sid_blob, tmp_ctx, iconv_convenience, &id3.sid,
+                                              (ndr_push_flags_fn_t)ndr_push_dom_sid);
+               if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+                       status = ndr_map_error2ntstatus(ndr_err);
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(status);
+               }
+               
+               ret = ldb_dn_set_extended_component(dn, "SID", &sid_blob);
+               if (ret != LDB_SUCCESS) {
+                       talloc_free(tmp_ctx);
+                       return WERR_FOOBAR;
+               }
+       }
+       
+       *out = data_blob_string_const(ldb_dn_get_extended_linearized(mem_ctx, dn, 1));
+       talloc_free(tmp_ctx);
+       return WERR_OK;
+}
+
+static WERROR dsdb_syntax_DN_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                           const struct dsdb_schema *schema,
                                            const struct dsdb_attribute *attr,
                                            const struct drsuapi_DsReplicaAttribute *in,
                                            TALLOC_CTX *mem_ctx,
@@ -842,33 +1537,21 @@ static WERROR dsdb_syntax_DN_drsuapi_to_ldb(const struct dsdb_schema *schema,
        W_ERROR_HAVE_NO_MEMORY(out->values);
 
        for (i=0; i < out->num_values; i++) {
-               struct drsuapi_DsReplicaObjectIdentifier3 id3;
-               enum ndr_err_code ndr_err;
-
-               if (in->value_ctr.values[i].blob == NULL) {
-                       return WERR_FOOBAR;
-               }
-
-               if (in->value_ctr.values[i].blob->length == 0) {
-                       return WERR_FOOBAR;
+               WERROR status = dsdb_syntax_one_DN_drsuapi_to_ldb(out->values, ldb, attr->syntax, 
+                                                                 schema->iconv_convenience, 
+                                                                 in->value_ctr.values[i].blob, 
+                                                                 &out->values[i]);
+               if (!W_ERROR_IS_OK(status)) {
+                       return status;
                }
-
-               ndr_err = ndr_pull_struct_blob_all(in->value_ctr.values[i].blob,
-                                                  out->values, schema->iconv_convenience, &id3,
-                                                  (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);
-               if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
-                       NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
-                       return ntstatus_to_werror(status);
-               }
-
-               /* TODO: handle id3.guid and id3.sid */
-               out->values[i] = data_blob_string_const(id3.dn);
+                                                 
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DN_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_DN_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                           const struct dsdb_schema *schema,
                                            const struct dsdb_attribute *attr,
                                            const struct ldb_message_element *in,
                                            TALLOC_CTX *mem_ctx,
@@ -894,30 +1577,66 @@ static WERROR dsdb_syntax_DN_ldb_to_drsuapi(const struct dsdb_schema *schema,
        for (i=0; i < in->num_values; i++) {
                struct drsuapi_DsReplicaObjectIdentifier3 id3;
                enum ndr_err_code ndr_err;
+               const DATA_BLOB *sid_blob;
+               struct ldb_dn *dn;
+               TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+               NTSTATUS status;
+
+               W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
 
                out->value_ctr.values[i].blob   = &blobs[i];
 
-               /* TODO: handle id3.guid and id3.sid */
+               dn = ldb_dn_from_ldb_val(tmp_ctx, ldb, &in->values[i]);
+
+               W_ERROR_HAVE_NO_MEMORY(dn);
+
                ZERO_STRUCT(id3);
-               id3.dn = (const char *)in->values[i].data;
+
+               status = dsdb_get_extended_dn_guid(dn, &id3.guid, "GUID");
+               if (!NT_STATUS_IS_OK(status) &&
+                   !NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(status);
+               }
+
+               sid_blob = ldb_dn_get_extended_component(dn, "SID");
+               if (sid_blob) {
+                       
+                       ndr_err = ndr_pull_struct_blob_all(sid_blob, 
+                                                          tmp_ctx, schema->iconv_convenience, &id3.sid,
+                                                          (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+                       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+                               status = ndr_map_error2ntstatus(ndr_err);
+                               talloc_free(tmp_ctx);
+                               return ntstatus_to_werror(status);
+                       }
+               }
+
+               id3.dn = ldb_dn_get_linearized(dn);
 
                ndr_err = ndr_push_struct_blob(&blobs[i], blobs, schema->iconv_convenience, &id3, (ndr_push_flags_fn_t)ndr_push_drsuapi_DsReplicaObjectIdentifier3);
                if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
-                       NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+                       status = ndr_map_error2ntstatus(ndr_err);
+                       talloc_free(tmp_ctx);
                        return ntstatus_to_werror(status);
                }
+               talloc_free(tmp_ctx);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DN_BINARY_drsuapi_to_ldb(const struct dsdb_schema *schema,
+
+
+static WERROR dsdb_syntax_DN_BINARY_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                  const struct dsdb_schema *schema,
                                                   const struct dsdb_attribute *attr,
                                                   const struct drsuapi_DsReplicaAttribute *in,
                                                   TALLOC_CTX *mem_ctx,
                                                   struct ldb_message_element *out)
 {
        uint32_t i;
+       int ret;
 
        out->flags      = 0;
        out->name       = talloc_strdup(mem_ctx, attr->lDAPDisplayName);
@@ -928,45 +1647,92 @@ static WERROR dsdb_syntax_DN_BINARY_drsuapi_to_ldb(const struct dsdb_schema *sch
        W_ERROR_HAVE_NO_MEMORY(out->values);
 
        for (i=0; i < out->num_values; i++) {
-               struct drsuapi_DsReplicaObjectIdentifier3Binary id3b;
-               char *binary;
-               char *str;
+               struct drsuapi_DsReplicaObjectIdentifier3Binary id3;
                enum ndr_err_code ndr_err;
+               DATA_BLOB guid_blob;
+               struct ldb_dn *dn;
+               struct dsdb_dn *dsdb_dn;
+               NTSTATUS status;
+               TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+               if (!tmp_ctx) {
+                       W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
+               }
 
                if (in->value_ctr.values[i].blob == NULL) {
+                       talloc_free(tmp_ctx);
                        return WERR_FOOBAR;
                }
 
                if (in->value_ctr.values[i].blob->length == 0) {
+                       talloc_free(tmp_ctx);
                        return WERR_FOOBAR;
                }
 
-               ndr_err = ndr_pull_struct_blob_all(in->value_ctr.values[i].blob,
-                                                  out->values, schema->iconv_convenience, &id3b,
-                                                  (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3Binary);
+               
+               /* windows sometimes sends an extra two pad bytes here */
+               ndr_err = ndr_pull_struct_blob(in->value_ctr.values[i].blob,
+                                              tmp_ctx, schema->iconv_convenience, &id3,
+                                              (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3Binary);
                if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
-                       NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+                       status = ndr_map_error2ntstatus(ndr_err);
+                       talloc_free(tmp_ctx);
                        return ntstatus_to_werror(status);
                }
 
-               /* TODO: handle id3.guid and id3.sid */
-               binary = data_blob_hex_string(out->values, &id3b.binary);
-               W_ERROR_HAVE_NO_MEMORY(binary);
+               dn = ldb_dn_new(tmp_ctx, ldb, id3.dn);
+               if (!dn) {
+                       talloc_free(tmp_ctx);
+                       /* If this fails, it must be out of memory, as it does not do much parsing */
+                       W_ERROR_HAVE_NO_MEMORY(dn);
+               }
 
-               str = talloc_asprintf(out->values, "B:%u:%s:%s",
-                                     (unsigned int)(id3b.binary.length * 2), /* because of 2 hex chars per byte */
-                                     binary,
-                                     id3b.dn);
-               W_ERROR_HAVE_NO_MEMORY(str);
+               status = GUID_to_ndr_blob(&id3.guid, tmp_ctx, &guid_blob);
+               if (!NT_STATUS_IS_OK(status)) {
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(status);
+               }
 
-               /* TODO: handle id3.guid and id3.sid */
-               out->values[i] = data_blob_string_const(str);
+               ret = ldb_dn_set_extended_component(dn, "GUID", &guid_blob);
+               if (ret != LDB_SUCCESS) {
+                       talloc_free(tmp_ctx);
+                       return WERR_FOOBAR;
+               }
+
+               talloc_free(guid_blob.data);
+
+               if (id3.__ndr_size_sid) {
+                       DATA_BLOB sid_blob;
+                       ndr_err = ndr_push_struct_blob(&sid_blob, tmp_ctx, schema->iconv_convenience, &id3.sid,
+                                                      (ndr_push_flags_fn_t)ndr_push_dom_sid);
+                       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+                               status = ndr_map_error2ntstatus(ndr_err);
+                               talloc_free(tmp_ctx);
+                               return ntstatus_to_werror(status);
+                       }
+
+                       ret = ldb_dn_set_extended_component(dn, "SID", &sid_blob);
+                       if (ret != LDB_SUCCESS) {
+                               talloc_free(tmp_ctx);
+                               return WERR_FOOBAR;
+                       }
+               }
+
+               /* set binary stuff */
+               dsdb_dn = dsdb_dn_construct(tmp_ctx, dn, id3.binary, attr->syntax->ldap_oid);
+               if (!dsdb_dn) {
+                       /* If this fails, it must be out of memory, we know the ldap_oid is valid */
+                       talloc_free(tmp_ctx);
+                       W_ERROR_HAVE_NO_MEMORY(dsdb_dn);
+               }
+               out->values[i] = data_blob_string_const(dsdb_dn_get_extended_linearized(out->values, dsdb_dn, 1));
+               talloc_free(tmp_ctx);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_DN_BINARY_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_DN_BINARY_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                                  const struct dsdb_schema *schema,
                                                   const struct dsdb_attribute *attr,
                                                   const struct ldb_message_element *in,
                                                   TALLOC_CTX *mem_ctx,
@@ -990,28 +1756,95 @@ static WERROR dsdb_syntax_DN_BINARY_ldb_to_drsuapi(const struct dsdb_schema *sch
        W_ERROR_HAVE_NO_MEMORY(blobs);
 
        for (i=0; i < in->num_values; i++) {
-               struct drsuapi_DsReplicaObjectIdentifier3Binary id3b;
+               struct drsuapi_DsReplicaObjectIdentifier3Binary id3;
                enum ndr_err_code ndr_err;
+               const DATA_BLOB *sid_blob;
+               struct dsdb_dn *dsdb_dn;
+               TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+               NTSTATUS status;
+
+               W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
 
                out->value_ctr.values[i].blob   = &blobs[i];
 
-               /* TODO: handle id3b.guid and id3b.sid, id3.binary */
-               ZERO_STRUCT(id3b);
-               id3b.dn         = (const char *)in->values[i].data;
-               id3b.binary     = data_blob(NULL, 0);
+               dsdb_dn = dsdb_dn_parse(tmp_ctx, ldb, &in->values[i], attr->syntax->ldap_oid);
+
+               if (!dsdb_dn) {
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(NT_STATUS_INVALID_PARAMETER);
+               }
+
+               ZERO_STRUCT(id3);
 
-               ndr_err = ndr_push_struct_blob(&blobs[i], blobs, schema->iconv_convenience, &id3b,
-                                              (ndr_push_flags_fn_t)ndr_push_drsuapi_DsReplicaObjectIdentifier3Binary);
+               status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &id3.guid, "GUID");
+               if (!NT_STATUS_IS_OK(status) &&
+                   !NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+                       talloc_free(tmp_ctx);
+                       return ntstatus_to_werror(status);
+               }
+
+               sid_blob = ldb_dn_get_extended_component(dsdb_dn->dn, "SID");
+               if (sid_blob) {
+                       
+                       ndr_err = ndr_pull_struct_blob_all(sid_blob, 
+                                                          tmp_ctx, schema->iconv_convenience, &id3.sid,
+                                                          (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+                       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+                               status = ndr_map_error2ntstatus(ndr_err);
+                               talloc_free(tmp_ctx);
+                               return ntstatus_to_werror(status);
+                       }
+               }
+
+               id3.dn = ldb_dn_get_linearized(dsdb_dn->dn);
+
+               /* get binary stuff */
+               id3.binary = dsdb_dn->extra_part;
+
+               ndr_err = ndr_push_struct_blob(&blobs[i], blobs, schema->iconv_convenience, &id3, (ndr_push_flags_fn_t)ndr_push_drsuapi_DsReplicaObjectIdentifier3Binary);
                if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
-                       NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
+                       status = ndr_map_error2ntstatus(ndr_err);
+                       talloc_free(tmp_ctx);
                        return ntstatus_to_werror(status);
                }
+               talloc_free(tmp_ctx);
        }
 
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_DN_STRING_drsuapi_to_ldb(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct drsuapi_DsReplicaAttribute *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                  struct ldb_message_element *out)
+{
+       return dsdb_syntax_DN_BINARY_drsuapi_to_ldb(ldb,
+                                                   schema,
+                                                   attr,
+                                                   in,
+                                                   mem_ctx,
+                                                   out);
+}
+
+static WERROR dsdb_syntax_DN_STRING_ldb_to_drsuapi(struct ldb_context *ldb,
+                                                  const struct dsdb_schema *schema,
+                                                  const struct dsdb_attribute *attr,
+                                                  const struct ldb_message_element *in,
+                                                  TALLOC_CTX *mem_ctx,
+                                                  struct drsuapi_DsReplicaAttribute *out)
+{
+       return dsdb_syntax_DN_BINARY_ldb_to_drsuapi(ldb,
+                                                   schema,
+                                                   attr,
+                                                   in,
+                                                   mem_ctx,
+                                                   out);
+}
+
+static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                                             const struct dsdb_schema *schema,
                                                              const struct dsdb_attribute *attr,
                                                              const struct drsuapi_DsReplicaAttribute *in,
                                                              TALLOC_CTX *mem_ctx,
@@ -1029,7 +1862,6 @@ static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(const struct dsdb_
 
        for (i=0; i < out->num_values; i++) {
                uint32_t len;
-               ssize_t ret;
                char *str;
 
                if (in->value_ctr.values[i].blob == NULL) {
@@ -1046,11 +1878,10 @@ static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(const struct dsdb_
                        return WERR_FOOBAR;
                }
 
-               ret = convert_string_talloc(out->values, schema->iconv_convenience, CH_UTF16, CH_UNIX,
+               if (!convert_string_talloc_convenience(out->values, schema->iconv_convenience, CH_UTF16, CH_UNIX,
                                            in->value_ctr.values[i].blob->data+4,
                                            in->value_ctr.values[i].blob->length-4,
-                                           (void **)&str);
-               if (ret == -1) {
+                                           (void **)&str, NULL, false)) {
                        return WERR_FOOBAR;
                }
 
@@ -1060,7 +1891,8 @@ static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(const struct dsdb_
        return WERR_OK;
 }
 
-static WERROR dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi(const struct dsdb_schema *schema,
+static WERROR dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                                             const struct dsdb_schema *schema,
                                                              const struct dsdb_attribute *attr,
                                                              const struct ldb_message_element *in,
                                                              TALLOC_CTX *mem_ctx,
@@ -1085,15 +1917,14 @@ static WERROR dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi(const struct dsdb_
 
        for (i=0; i < in->num_values; i++) {
                uint8_t *data;
-               ssize_t ret;
+               size_t ret;
 
                out->value_ctr.values[i].blob   = &blobs[i];
 
-               ret = convert_string_talloc(blobs, schema->iconv_convenience, CH_UNIX, CH_UTF16,
+               if (!convert_string_talloc_convenience(blobs, schema->iconv_convenience, CH_UNIX, CH_UTF16,
                                            in->values[i].data,
                                            in->values[i].length,
-                                           (void **)&data);
-               if (ret == -1) {
+                                           (void **)&data, &ret, false)) {
                        return WERR_FOOBAR;
                }
 
@@ -1116,11 +1947,12 @@ static WERROR dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi(const struct dsdb_
 static const struct dsdb_syntax dsdb_syntaxes[] = {
        {
                .name                   = "Boolean",
-               .ldap_oid               = "1.3.6.1.4.1.1466.115.121.1.7",
+               .ldap_oid               = LDB_SYNTAX_BOOLEAN,
                .oMSyntax               = 1,
                .attributeSyntax_oid    = "2.5.5.8",
                .drsuapi_to_ldb         = dsdb_syntax_BOOL_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_BOOL_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_BOOL_validate_ldb,
                .equality               = "booleanMatch",
                .comment                = "Boolean" 
        },{
@@ -1130,8 +1962,10 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.9",
                .drsuapi_to_ldb         = dsdb_syntax_INT32_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_INT32_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_INT32_validate_ldb,
                .equality               = "integerMatch",
                .comment                = "Integer",
+               .ldb_syntax             = LDB_SYNTAX_SAMBA_INT32
        },{
                .name                   = "String(Octet)",
                .ldap_oid               = LDB_SYNTAX_OCTET_STRING,
@@ -1139,6 +1973,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.10",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
                .equality               = "octetStringMatch",
                .comment                = "Octet String",
        },{
@@ -1148,6 +1983,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.17",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
                .equality               = "octetStringMatch",
                .comment                = "Octet String - Security Identifier (SID)",
                .ldb_syntax             = LDB_SYNTAX_SAMBA_SID
@@ -1158,6 +1994,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.2",
                .drsuapi_to_ldb         = dsdb_syntax_OID_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_OID_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
                .equality               = "caseIgnoreMatch", /* Would use "objectIdentifierMatch" but most are ldap attribute/class names */
                .comment                = "OID String",
                .ldb_syntax             = LDB_SYNTAX_DIRECTORY_STRING
@@ -1168,6 +2005,8 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.9",
                .drsuapi_to_ldb         = dsdb_syntax_INT32_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_INT32_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_INT32_validate_ldb,
+               .ldb_syntax             = LDB_SYNTAX_SAMBA_INT32
        },{
        /* not used in w2k3 forest */
                .name                   = "String(Numeric)",
@@ -1176,9 +2015,11 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.6",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
                .equality               = "numericStringMatch",
                .substring              = "numericStringSubstringsMatch",
-               .comment                = "Numeric String" 
+               .comment                = "Numeric String",
+               .ldb_syntax             = LDB_SYNTAX_DIRECTORY_STRING,
        },{
                .name                   = "String(Printable)",
                .ldap_oid               = "1.3.6.1.4.1.1466.115.121.1.44",
@@ -1186,6 +2027,8 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.5",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
+               .ldb_syntax             = LDB_SYNTAX_OCTET_STRING,
        },{
                .name                   = "String(Teletex)",
                .ldap_oid               = "1.2.840.113556.1.4.905",
@@ -1193,6 +2036,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.4",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
                .equality               = "caseIgnoreMatch",
                .substring              = "caseIgnoreSubstringsMatch",
                .comment                = "Case Insensitive String",
@@ -1204,8 +2048,10 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.5",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
                .equality               = "caseExactIA5Match",
-               .comment                = "Printable String"
+               .comment                = "Printable String",
+               .ldb_syntax             = LDB_SYNTAX_OCTET_STRING,
        },{
                .name                   = "String(UTC-Time)",
                .ldap_oid               = "1.3.6.1.4.1.1466.115.121.1.53",
@@ -1213,6 +2059,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.11",
                .drsuapi_to_ldb         = dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_NTTIME_UTC_validate_ldb,
                .equality               = "generalizedTimeMatch",
                .comment                = "UTC Time",
        },{
@@ -1222,6 +2069,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.11",
                .drsuapi_to_ldb         = dsdb_syntax_NTTIME_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_NTTIME_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_NTTIME_validate_ldb,
                .equality               = "generalizedTimeMatch",
                .comment                = "Generalized Time",
                .ldb_syntax             = LDB_SYNTAX_UTC_TIME,
@@ -1233,6 +2081,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.3",
                .drsuapi_to_ldb         = dsdb_syntax_FOOBAR_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_FOOBAR_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_FOOBAR_validate_ldb,
        },{
                .name                   = "String(Unicode)",
                .ldap_oid               = LDB_SYNTAX_DIRECTORY_STRING,
@@ -1240,6 +2089,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.12",
                .drsuapi_to_ldb         = dsdb_syntax_UNICODE_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_UNICODE_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_UNICODE_validate_ldb,
                .equality               = "caseIgnoreMatch",
                .substring              = "caseIgnoreSubstringsMatch",
                .comment                = "Directory String",
@@ -1250,6 +2100,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.16",
                .drsuapi_to_ldb         = dsdb_syntax_INT64_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_INT64_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_INT64_validate_ldb,
                .equality               = "integerMatch",
                .comment                = "Large Integer",
                .ldb_syntax             = LDB_SYNTAX_INTEGER,
@@ -1260,6 +2111,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.15",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
        },{
                .name                   = "Object(DS-DN)",
                .ldap_oid               = LDB_SYNTAX_DN,
@@ -1268,28 +2120,32 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.1",
                .drsuapi_to_ldb         = dsdb_syntax_DN_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DN_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
                .equality               = "distinguishedNameMatch",
                .comment                = "Object(DS-DN) == a DN",
        },{
                .name                   = "Object(DN-Binary)",
-               .ldap_oid               = "1.2.840.113556.1.4.903",
+               .ldap_oid               = DSDB_SYNTAX_BINARY_DN,
                .oMSyntax               = 127,
                .oMObjectClass          = OMOBJECTCLASS("\x2a\x86\x48\x86\xf7\x14\x01\x01\x01\x0b"),
                .attributeSyntax_oid    = "2.5.5.7",
                .drsuapi_to_ldb         = dsdb_syntax_DN_BINARY_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DN_BINARY_ldb_to_drsuapi,
-               .equality               = "distinguishedNameMatch",
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
+               .equality               = "octetStringMatch",
                .comment                = "OctetString: Binary+DN",
-               .ldb_syntax             = LDB_SYNTAX_DN,
        },{
-       /* not used in w2k3 schema */
+       /* not used in w2k3 schema, but used in Exchange schema*/
                .name                   = "Object(OR-Name)",
-               .ldap_oid               = "1.2.840.113556.1.4.1221",
+               .ldap_oid               = DSDB_SYNTAX_OR_NAME,
                .oMSyntax               = 127,
                .oMObjectClass          = OMOBJECTCLASS("\x56\x06\x01\x02\x05\x0b\x1D"),
                .attributeSyntax_oid    = "2.5.5.7",
-               .drsuapi_to_ldb         = dsdb_syntax_FOOBAR_drsuapi_to_ldb,
-               .ldb_to_drsuapi         = dsdb_syntax_FOOBAR_ldb_to_drsuapi,
+               .drsuapi_to_ldb         = dsdb_syntax_DN_BINARY_drsuapi_to_ldb,
+               .ldb_to_drsuapi         = dsdb_syntax_DN_BINARY_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
+               .equality               = "caseIgnoreMatch",
+               .ldb_syntax             = LDB_SYNTAX_DN,
        },{
        /* 
         * TODO: verify if DATA_BLOB is correct here...!
@@ -1304,6 +2160,7 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.10",
                .drsuapi_to_ldb         = dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_DATA_BLOB_validate_ldb,
        },{
                .name                   = "Object(Presentation-Address)",
                .ldap_oid               = "1.3.6.1.4.1.1466.115.121.1.43",
@@ -1312,7 +2169,9 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.13",
                .drsuapi_to_ldb         = dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi,
-               .comment                = "Presentation Address" 
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
+               .comment                = "Presentation Address",
+               .ldb_syntax             = LDB_SYNTAX_DIRECTORY_STRING,
        },{
        /* not used in w2k3 schema */
                .name                   = "Object(Access-Point)",
@@ -1322,19 +2181,20 @@ static const struct dsdb_syntax dsdb_syntaxes[] = {
                .attributeSyntax_oid    = "2.5.5.14",
                .drsuapi_to_ldb         = dsdb_syntax_FOOBAR_drsuapi_to_ldb,
                .ldb_to_drsuapi         = dsdb_syntax_FOOBAR_ldb_to_drsuapi,
-               .equality               = "distinguishedNameMatch",
-               .comment                = "OctetString: String+DN",
-               .ldb_syntax             = LDB_SYNTAX_DN,
+               .validate_ldb           = dsdb_syntax_FOOBAR_validate_ldb,
+               .ldb_syntax             = LDB_SYNTAX_DIRECTORY_STRING,
        },{
        /* not used in w2k3 schema */
                .name                   = "Object(DN-String)",
-               .ldap_oid               = "1.2.840.113556.1.4.904",
+               .ldap_oid               = DSDB_SYNTAX_STRING_DN,
                .oMSyntax               = 127,
                .oMObjectClass          = OMOBJECTCLASS("\x2a\x86\x48\x86\xf7\x14\x01\x01\x01\x0c"),
                .attributeSyntax_oid    = "2.5.5.14",
-               .drsuapi_to_ldb         = dsdb_syntax_FOOBAR_drsuapi_to_ldb,
-               .ldb_to_drsuapi         = dsdb_syntax_FOOBAR_ldb_to_drsuapi,
-               .ldb_syntax             = LDB_SYNTAX_DN,
+               .drsuapi_to_ldb         = dsdb_syntax_DN_STRING_drsuapi_to_ldb,
+               .ldb_to_drsuapi         = dsdb_syntax_DN_STRING_ldb_to_drsuapi,
+               .validate_ldb           = dsdb_syntax_ALLOW_validate_ldb,
+               .equality               = "octetStringMatch",
+               .comment                = "OctetString: String+DN",
        }
 };
 
@@ -1395,7 +2255,8 @@ const struct dsdb_syntax *dsdb_syntax_for_attribute(const struct dsdb_attribute
        return NULL;
 }
 
-WERROR dsdb_attribute_drsuapi_to_ldb(const struct dsdb_schema *schema,
+WERROR dsdb_attribute_drsuapi_to_ldb(struct ldb_context *ldb, 
+                                    const struct dsdb_schema *schema,
                                     const struct drsuapi_DsReplicaAttribute *in,
                                     TALLOC_CTX *mem_ctx,
                                     struct ldb_message_element *out)
@@ -1407,10 +2268,11 @@ WERROR dsdb_attribute_drsuapi_to_ldb(const struct dsdb_schema *schema,
                return WERR_FOOBAR;
        }
 
-       return sa->syntax->drsuapi_to_ldb(schema, sa, in, mem_ctx, out);
+       return sa->syntax->drsuapi_to_ldb(ldb, schema, sa, in, mem_ctx, out);
 }
 
-WERROR dsdb_attribute_ldb_to_drsuapi(const struct dsdb_schema *schema,
+WERROR dsdb_attribute_ldb_to_drsuapi(struct ldb_context *ldb, 
+                                    const struct dsdb_schema *schema,
                                     const struct ldb_message_element *in,
                                     TALLOC_CTX *mem_ctx,
                                     struct drsuapi_DsReplicaAttribute *out)
@@ -1422,5 +2284,19 @@ WERROR dsdb_attribute_ldb_to_drsuapi(const struct dsdb_schema *schema,
                return WERR_FOOBAR;
        }
 
-       return sa->syntax->ldb_to_drsuapi(schema, sa, in, mem_ctx, out);
+       return sa->syntax->ldb_to_drsuapi(ldb, schema, sa, in, mem_ctx, out);
+}
+
+WERROR dsdb_attribute_validate_ldb(struct ldb_context *ldb,
+                                  const struct dsdb_schema *schema,
+                                  const struct ldb_message_element *in)
+{
+       const struct dsdb_attribute *sa;
+
+       sa = dsdb_attribute_by_lDAPDisplayName(schema, in->name);
+       if (!sa) {
+               return WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
+       }
+
+       return sa->syntax->validate_ldb(ldb, schema, sa, in);
 }