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runner-go/container/volume.go

44 lines
1.3 KiB
Go

// Copyright 2021 Drone.IO Inc. All rights reserved.
// Use of this source code is governed by the Polyform License
// that can be found in the LICENSE file.
package container
import (
"path/filepath"
"strings"
)
// IsRestrictedVolume is helper function that
// returns true if mounting the volume is restricted for un-trusted containers.
func IsRestrictedVolume(path string) bool {
path, err := filepath.Abs(path)
if err != nil {
return true
}
path = strings.ToLower(path)
switch {
case path == "/":
case path == "/etc":
case path == "/etc/docker" || strings.HasPrefix(path, "/etc/docker/"):
case path == "/var":
case path == "/var/run" || strings.HasPrefix(path, "/var/run/"):
case path == "/proc" || strings.HasPrefix(path, "/proc/"):
case path == "/usr/local/bin" || strings.HasPrefix(path, "/usr/local/bin/"):
case path == "/usr/local/sbin" || strings.HasPrefix(path, "/usr/local/sbin/"):
case path == "/usr/bin" || strings.HasPrefix(path, "/usr/bin/"):
case path == "/bin" || strings.HasPrefix(path, "/bin/"):
case path == "/mnt" || strings.HasPrefix(path, "/mnt/"):
case path == "/mount" || strings.HasPrefix(path, "/mount/"):
case path == "/media" || strings.HasPrefix(path, "/media/"):
case path == "/sys" || strings.HasPrefix(path, "/sys/"):
case path == "/dev" || strings.HasPrefix(path, "/dev/"):
default:
return false
}
return true
}