s4-dsdb/syntax: Implement Remote-ATTID to Local-ATTID mapping function

diff --git a/source4/dsdb/schema/schema_syntax.c b/source4/dsdb/schema/schema_syntax.c
index 0d1d27451905d73dfc52dba33937d94b0e82891d..9ef2e32d14b4b66901762468074339f521cdc5e6 100644 (file)
--- a/source4/dsdb/schema/schema_syntax.c
+++ b/source4/dsdb/schema/schema_syntax.c
@@ -70,6 +70,41 @@ uint32_t dsdb_attribute_get_attid(const struct dsdb_attribute *attr,
        return attr->attributeID_id;
 }
 
+/**
+ * Map an ATTID from remote DC to a local ATTID
+ * using remote prefixMap
+ */
+static bool dsdb_syntax_attid_from_remote_attid(const struct dsdb_syntax_ctx *ctx,
+                                               TALLOC_CTX *mem_ctx,
+                                               uint32_t id_remote,
+                                               uint32_t *id_local)
+{
+       WERROR werr;
+       const char *oid;
+
+       /*
+        * map remote ATTID to local directly in case
+        * of no remote prefixMap (during provision for instance)
+        */
+       if (!ctx->pfm_remote) {
+               *id_local = id_remote;
+               return true;
+       }
+
+       werr = dsdb_schema_pfm_oid_from_attid(ctx->pfm_remote, id_remote, mem_ctx, &oid);
+       if (!W_ERROR_IS_OK(werr)) {
+               DEBUG(0,("ATTID->OID failed (%s) for: 0x%08X\n", win_errstr(werr), id_remote));
+               return false;
+       }
+
+       werr = dsdb_schema_pfm_attid_from_oid(ctx->schema->prefixmap, oid, id_local);
+       if (!W_ERROR_IS_OK(werr)) {
+               DEBUG(0,("OID->ATTID failed (%s) for: %s\n", win_errstr(werr), oid));
+               return false;
+       }
+
+       return true;
+}
 
 static WERROR dsdb_syntax_FOOBAR_drsuapi_to_ldb(const struct dsdb_syntax_ctx *ctx,
                                                const struct dsdb_attribute *attr,