/
main_linux.go
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/
main_linux.go
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// Copyright 2021 Chaos Mesh Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package main
import (
"flag"
"fmt"
"os"
"strings"
"github.com/go-logr/zapr"
"go.uber.org/zap"
"github.com/chaos-mesh/chaos-mesh/pkg/chaosdaemon/tasks"
"github.com/chaos-mesh/chaos-mesh/pkg/time"
"github.com/chaos-mesh/chaos-mesh/pkg/time/utils"
"github.com/chaos-mesh/chaos-mesh/pkg/version"
)
var (
pid int
secDelta int64
nsecDelta int64
printVersion bool
clockIdsSlice string
)
func initFlag() {
flag.IntVar(&pid, "pid", 0, "pid of target program")
flag.Int64Var(&secDelta, "sec_delta", 0, "delta time of sec field")
flag.Int64Var(&nsecDelta, "nsec_delta", 0, "delta time of nsec field")
flag.StringVar(&clockIdsSlice, "clk_ids", "CLOCK_REALTIME", "all affected clock ids split with \",\"")
flag.BoolVar(&printVersion, "version", false, "print version information and exit")
flag.Parse()
}
func main() {
fmt.Println("Watchmaker will not support recovery function in future," +
" please use time attack in chaosd.")
initFlag()
version.PrintVersionInfo("watchmaker")
if printVersion {
os.Exit(0)
}
zapLog, err := zap.NewDevelopment()
if err != nil {
panic(fmt.Sprintf("error while creating zap logger: %v", err))
}
log := zapr.NewLogger(zapLog)
clkIds := strings.Split(clockIdsSlice, ",")
mask, err := utils.EncodeClkIds(clkIds)
if err != nil {
log.Error(err, "error while converting clock ids to mask")
os.Exit(1)
}
log.Info("get clock ids mask", "mask", mask)
s, err := time.GetSkew(log, time.NewConfig(secDelta, nsecDelta, mask))
if err != nil {
log.Error(err, "error while GetSkew")
os.Exit(1)
}
err = s.Inject(tasks.SysPID(pid))
if err != nil {
log.Error(err, "error while modifying time", "pid", pid, "secDelta", secDelta, "nsecDelta", nsecDelta, "mask", mask)
}
}