Test checksum types for invalid combinations (#20953)

cmd/api-errors.go

@@ -2254,6 +2254,8 @@ func toAPIErrorCode(ctx context.Context, err error) (apiErr APIErrorCode) {
 		apiErr = ErrServerNotInitialized
 	case errBucketMetadataNotInitialized:
 		apiErr = ErrBucketMetadataNotInitialized
+	case hash.ErrInvalidChecksum:
+		apiErr = ErrInvalidChecksum
 	}
 
 	// Compression errors

cmd/object-api-options.go

@@ -467,13 +467,10 @@ func completeMultipartOpts(ctx context.Context, r *http.Request, bucket, object
 			}
 		}
 	}
+
 	opts.WantChecksum, err = hash.GetContentChecksum(r.Header)
 	if err != nil {
-		return opts, InvalidArgument{
-			Bucket: bucket,
-			Object: object,
-			Err:    fmt.Errorf("invalid/unknown checksum sent: %v", err),
-		}
+		return opts, err
 	}
 	opts.MTime = mtime
 	opts.UserDefined = make(map[string]string)

cmd/object-multipart-handlers.go

@@ -216,7 +216,7 @@ func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r
 
 	checksumType := hash.NewChecksumHeader(r.Header)
 	if checksumType.Is(hash.ChecksumInvalid) {
-		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequestParameter), r.URL)
+		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidChecksum), r.URL)
 		return
 	} else if checksumType.IsSet() && !checksumType.Is(hash.ChecksumTrailing) {
 		opts.WantChecksum = &hash.Checksum{Type: checksumType}