refactor: narrow test harness compatibility surfaces (#3592)

fuzz/Cargo.lock

@@ -8758,6 +8758,7 @@ name = "rustfs-storage-api"
 version = "1.0.0-beta.8"
 dependencies = [
  "async-trait",
+ "rustfs-filemeta",
  "serde",
  "time",
  "uuid",

fuzz/fuzz_targets/bucket_validation.rs

@@ -1,9 +1,12 @@
 #![no_main]
 
+#[path = "bucket_validation/storage_compat.rs"]
 mod storage_compat;
 
 use libfuzzer_sys::fuzz_target;
-use crate::storage_compat::ecstore::bucket::utils::{check_bucket_and_object_names, check_list_objs_args, check_valid_bucket_name_strict};
+use crate::storage_compat::ecstore::bucket::utils::{
+    check_bucket_and_object_names, check_list_objs_args, check_valid_bucket_name_strict, is_meta_bucketname,
+};
 
 fn parse_case(data: &[u8]) -> (String, String) {
     let text = String::from_utf8_lossy(data);
@@ -25,6 +28,7 @@ fuzz_target!(|data: &[u8]| {
     let (bucket, object) = parse_case(data);
 
     let strict_bucket_ok = check_valid_bucket_name_strict(&bucket).is_ok();
+    let valid_bucket_for_object_ops = strict_bucket_ok || is_meta_bucketname(&bucket);
     let pair_ok = check_bucket_and_object_names(&bucket, &object).is_ok();
     let list_ok = check_list_objs_args(&bucket, &object, &None).is_ok();
 
@@ -48,10 +52,16 @@ fuzz_target!(|data: &[u8]| {
     }
 
     if pair_ok {
-        assert!(strict_bucket_ok, "accepted bucket/object pair must also satisfy strict bucket validation");
+        assert!(
+            valid_bucket_for_object_ops,
+            "accepted bucket/object pair must satisfy strict bucket validation or meta bucket compatibility"
+        );
     }
 
     if list_ok {
-        assert!(strict_bucket_ok, "accepted list-object args must also satisfy strict bucket validation");
+        assert!(
+            valid_bucket_for_object_ops,
+            "accepted list-object args must satisfy strict bucket validation or meta bucket compatibility"
+        );
     }
 });

fuzz/fuzz_targets/bucket_validation/storage_compat.rs

@@ -0,0 +1,23 @@
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub(crate) mod ecstore {
+    pub(crate) mod bucket {
+        pub(crate) mod utils {
+            pub(crate) use rustfs_ecstore::bucket::utils::{
+                check_bucket_and_object_names, check_list_objs_args, check_valid_bucket_name_strict, is_meta_bucketname,
+            };
+        }
+    }
+}

fuzz/fuzz_targets/path_containment.rs

@@ -1,5 +1,6 @@
 #![no_main]
 
+#[path = "path_containment/storage_compat.rs"]
 mod storage_compat;
 
 use libfuzzer_sys::fuzz_target;

fuzz/fuzz_targets/path_containment/storage_compat.rs

@@ -13,5 +13,11 @@
 // limitations under the License.
 
 pub(crate) mod ecstore {
-    pub(crate) use rustfs_ecstore::bucket;
+    pub(crate) mod bucket {
+        pub(crate) mod utils {
+            pub(crate) use rustfs_ecstore::bucket::utils::{
+                check_object_name_for_length_and_slash, has_bad_path_component, is_valid_object_prefix,
+            };
+        }
+    }
 }