| // Copyright Istio 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 fuzz |
| |
| import ( |
| "fmt" |
| "time" |
| ) |
| |
| import ( |
| fuzz "github.com/AdaLogics/go-fuzz-headers" |
| "istio.io/api/networking/v1alpha3" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pilot/pkg/config/memory" |
| "github.com/apache/dubbo-go-pixiu/pilot/pkg/controller/workloadentry" |
| "github.com/apache/dubbo-go-pixiu/pilot/pkg/model" |
| "github.com/apache/dubbo-go-pixiu/pkg/config" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/schema/collections" |
| "github.com/apache/dubbo-go-pixiu/pkg/config/schema/gvk" |
| "github.com/apache/dubbo-go-pixiu/pkg/keepalive" |
| ) |
| |
| var ( |
| // A valid WorkloadGroup. |
| // This can be modified to have pseudo-random |
| // values for more randomization. |
| tmplA = &v1alpha3.WorkloadGroup{ |
| Template: &v1alpha3.WorkloadEntry{ |
| Ports: map[string]uint32{"http": 80}, |
| Labels: map[string]string{"app": "a"}, |
| Network: "nw0", |
| Locality: "reg0/zone0/subzone0", |
| Weight: 1, |
| ServiceAccount: "sa-a", |
| }, |
| } |
| // A valid Config. |
| // This can be modified to have pseudo-random |
| // values for more randomization. |
| wgA = config.Config{ |
| Meta: config.Meta{ |
| GroupVersionKind: gvk.WorkloadGroup, |
| Namespace: "a", |
| Name: "wg-a", |
| Labels: map[string]string{ |
| "grouplabel": "notonentry", |
| }, |
| }, |
| Spec: tmplA, |
| Status: nil, |
| } |
| ) |
| |
| // FuzzWE implements a fuzzer that targets several apis |
| // in the workloadentry package. It does so by setting |
| // up a workloadentry controller with a proxy with |
| // pseudo-random values. |
| // The fuzzer then uses the controller to test: |
| // 1: RegisterWorkload |
| // 2: QueueUnregisterWorkload |
| // 3: QueueWorkloadEntryHealth |
| func FuzzWE(data []byte) int { |
| f := fuzz.NewConsumer(data) |
| proxy := &model.Proxy{} |
| err := f.GenerateStruct(proxy) |
| if err != nil { |
| return 0 |
| } |
| if !proxyValid(proxy) { |
| return 0 |
| } |
| |
| store := memory.NewController(memory.Make(collections.All)) |
| c := workloadentry.NewController(store, "", keepalive.Infinity) |
| err = createStore(store, wgA) |
| if err != nil { |
| fmt.Println(err) |
| return 0 |
| } |
| stop := make(chan struct{}) |
| go c.Run(stop) |
| defer close(stop) |
| |
| err = c.RegisterWorkload(proxy, time.Now()) |
| if err != nil { |
| return 0 |
| } |
| c.QueueUnregisterWorkload(proxy, time.Now()) |
| |
| he := workloadentry.HealthEvent{} |
| err = f.GenerateStruct(&he) |
| if err != nil { |
| return 0 |
| } |
| c.QueueWorkloadEntryHealth(proxy, he) |
| |
| return 1 |
| } |
| |
| // Helper function to create a store. |
| func createStore(store model.ConfigStoreController, cfg config.Config) error { |
| if _, err := store.Create(cfg); err != nil { |
| return err |
| } |
| return nil |
| } |