servicePortFirewallChainNamePrefix      = "firewall-"
)

// hashAndTruncate prefixes name with a hash of itself and then truncates to
// chainNameBaseLengthMax. The hash ensures that (a) the name is still unique if we have
// to truncate the end, and (b) it's visually distinguishable from other chains that would
// otherwise have nearly identical names (e.g., different endpoint chains for a given

		bucketMetaPrefix, healingTrackerFilename)
	b, err := os.ReadFile(healingFile)
	if err != nil {
		return nil
	}
	if len(b) == 0 {
		// 'healing.bin' might be truncated
		return nil
	}
	h := newHealingTracker()
	_, err = h.UnmarshalMsg(b)
	bugLogIf(GlobalContext, err)
	return h
}

// checkODirectDiskSupport asks the disk to write some data

// signify its presence. In that case either a comma or a decimal point
// followed by a maximal series of digits is parsed as a fractional second.
// Fractional seconds are truncated to nanosecond precision.
//
// Elements omitted from the layout are assumed to be zero or, when
// zero is impossible, one, so parsing "3:04pm" returns the time

	testServer.Obj.Shutdown(context.Background())
	os.RemoveAll(testServer.Root)
	for _, ep := range testServer.Disks {
		for _, disk := range ep.Endpoints {
			os.RemoveAll(disk.Path)
		}
	}
}

// Truncate request to simulate unexpected EOF for a request signed using streaming signature v4.
func truncateChunkByHalfSigv4(req *http.Request) (*http.Request, error) {
	bufReader := bufio.NewReader(req.Body)