82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"time"
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"github.com/sirupsen/logrus"
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)
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var (
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dirs = []string{"/sys", "/proc"}
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fuzzes = map[string]FuzzFunc{
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"chmod": chmodFuzz,
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"read": readFuzz,
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"writeBytes": writeBytesFuzz,
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"writeNum": writeNumFuzz,
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}
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fuzzTimeout = 500 * time.Millisecond
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)
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func main() {
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for _, dir := range dirs {
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err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if !info.Mode().IsRegular() {
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return nil
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}
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for fname, fuzz := range fuzzes {
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if err := fuzz(path, info, fuzzTimeout); err != nil {
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logrus.Warnf("%s: %q fuzz failed with: %v", path, fname, err)
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}
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}
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return nil
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})
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if err != nil {
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logrus.Warnf("%s: %v", dir, err)
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}
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}
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}
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type FuzzFunc func(path string, info os.FileInfo, timeout time.Duration) error
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func readFuzz(path string, info os.FileInfo, timeout time.Duration) error {
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c1 := make(chan error, 1)
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go func() {
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fd, err := os.Open(path)
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if err != nil {
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c1 <- err
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}
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defer fd.Close()
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_, err = io.Copy(ioutil.Discard, fd)
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c1 <- err
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}()
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select {
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case err := <-c1:
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return err
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case <-time.After(timeout):
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return fmt.Errorf("timeout reached")
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}
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return nil
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}
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func writeNumFuzz(path string, info os.FileInfo, timeout time.Duration) error {
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return nil
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}
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func writeBytesFuzz(path string, info os.FileInfo, timeout time.Duration) error {
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return nil
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}
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func chmodFuzz(path string, info os.FileInfo, timeout time.Duration) error {
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return nil
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}
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// maybe have an ioctl fuzzer
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