| // Copyright 2017 syzkaller project authors. All rights reserved. |
| // Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. |
| |
| package host |
| |
| import ( |
| "fmt" |
| "strings" |
| "syscall" |
| |
| "github.com/google/syzkaller/prog" |
| ) |
| |
| func isSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) { |
| if strings.HasPrefix(c.CallName, "ioctl$VMM_") { |
| return isSupportedVMM() |
| } |
| return true, "" |
| } |
| |
| func isSupportedVMM() (bool, string) { |
| device := "/dev/vmm" |
| fd, err := syscall.Open(device, syscall.O_RDONLY, 0) |
| if fd == -1 { |
| return false, fmt.Sprintf("open(%v) failed: %v", device, err) |
| } |
| syscall.Close(fd) |
| return true, "" |
| } |
| |
| func init() { |
| checkFeature[FeatureCoverage] = unconditionallyEnabled |
| checkFeature[FeatureComparisons] = unconditionallyEnabled |
| checkFeature[FeatureNetworkInjection] = unconditionallyEnabled |
| checkFeature[FeatureSandboxSetuid] = unconditionallyEnabled |
| } |
