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// Copyright 2018 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 ipcconfig
import (
"flag"
"github.com/google/syzkaller/pkg/ipc"
"github.com/google/syzkaller/prog"
"github.com/google/syzkaller/sys/targets"
)
var (
flagExecutor = flag.String("executor", "./syz-executor", "path to executor binary")
flagThreaded = flag.Bool("threaded", true, "use threaded mode in executor")
flagSignal = flag.Bool("cover", false, "collect feedback signals (coverage)")
flagSandbox = flag.String("sandbox", "none", "sandbox for fuzzing (none/setuid/namespace/android)")
flagDebug = flag.Bool("debug", false, "debug output from executor")
flagSlowdown = flag.Int("slowdown", 1, "execution slowdown caused by emulation/instrumentation")
)
func Default(target *prog.Target) (*ipc.Config, *ipc.ExecOpts, error) {
sysTarget := targets.Get(target.OS, target.Arch)
c := &ipc.Config{
Executor: *flagExecutor,
Timeouts: sysTarget.Timeouts(*flagSlowdown),
}
if *flagSignal {
c.Flags |= ipc.FlagSignal
}
if *flagDebug {
c.Flags |= ipc.FlagDebug
}
sandboxFlags, err := ipc.SandboxToFlags(*flagSandbox)
if err != nil {
return nil, nil, err
}
c.Flags |= sandboxFlags
c.UseShmem = sysTarget.ExecutorUsesShmem
c.UseForkServer = sysTarget.ExecutorUsesForkServer
opts := &ipc.ExecOpts{
Flags: ipc.FlagDedupCover,
}
if *flagThreaded {
opts.Flags |= ipc.FlagThreaded
}
if *flagSignal {
opts.Flags |= ipc.FlagCollectSignal
}
return c, opts, nil
}
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