istio.io/istio@v0.0.0-20240520182934-d79c90f27776/tests/fuzz/pilot_networking_fuzzer.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package fuzz
    16  
    17  import (
    18  	fuzz "github.com/AdaLogics/go-fuzz-headers"
    19  
    20  	"istio.io/istio/pilot/pkg/model"
    21  	"istio.io/istio/pilot/pkg/networking/grpcgen"
    22  )
    23  
    24  func FuzzGrpcGenGenerate(data []byte) int {
    25  	f := fuzz.NewConsumer(data)
    26  
    27  	proxy := &model.Proxy{}
    28  	err := f.GenerateStruct(proxy)
    29  	if err != nil {
    30  		return 0
    31  	}
    32  	if !proxy.FuzzValidate() {
    33  		return 0
    34  	}
    35  
    36  	w := &model.WatchedResource{}
    37  	err = f.GenerateStruct(w)
    38  	if err != nil {
    39  		return 0
    40  	}
    41  
    42  	updates := &model.PushRequest{}
    43  	err = f.GenerateStruct(updates)
    44  	if err != nil {
    45  		return 0
    46  	}
    47  
    48  	generator := &grpcgen.GrpcConfigGenerator{}
    49  	_, _, _ = generator.Generate(proxy, w, updates)
    50  
    51  	return 1
    52  }