Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/pkg/registry/rbac/rolebinding/policybased/BUILD

@@ -0,0 +1,38 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["storage.go"],
+    importpath = "k8s.io/kubernetes/pkg/registry/rbac/rolebinding/policybased",
+    deps = [
+        "//pkg/apis/core/helper:go_default_library",
+        "//pkg/apis/rbac:go_default_library",
+        "//pkg/apis/rbac/v1:go_default_library",
+        "//pkg/registry/rbac:go_default_library",
+        "//pkg/registry/rbac/validation:go_default_library",
+        "//vendor/k8s.io/api/rbac/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/authorization/authorizer:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/endpoints/request:go_default_library",
+        "//vendor/k8s.io/apiserver/pkg/registry/rest:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/registry/rbac/rolebinding/policybased/storage.go

@@ -0,0 +1,128 @@
+/*
+Copyright 2016 The Kubernetes 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 policybased implements a standard storage for RoleBinding that prevents privilege escalation.
+package policybased
+
+import (
+	"context"
+
+	rbacv1 "k8s.io/api/rbac/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apiserver/pkg/authorization/authorizer"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/apiserver/pkg/registry/rest"
+	kapihelper "k8s.io/kubernetes/pkg/apis/core/helper"
+	"k8s.io/kubernetes/pkg/apis/rbac"
+	rbacv1helpers "k8s.io/kubernetes/pkg/apis/rbac/v1"
+	rbacregistry "k8s.io/kubernetes/pkg/registry/rbac"
+	rbacregistryvalidation "k8s.io/kubernetes/pkg/registry/rbac/validation"
+)
+
+var groupResource = rbac.Resource("rolebindings")
+
+type Storage struct {
+	rest.StandardStorage
+
+	authorizer authorizer.Authorizer
+
+	ruleResolver rbacregistryvalidation.AuthorizationRuleResolver
+}
+
+func NewStorage(s rest.StandardStorage, authorizer authorizer.Authorizer, ruleResolver rbacregistryvalidation.AuthorizationRuleResolver) *Storage {
+	return &Storage{s, authorizer, ruleResolver}
+}
+
+func (r *Storage) NamespaceScoped() bool {
+	return true
+}
+
+func (s *Storage) Create(ctx context.Context, obj runtime.Object, createValidation rest.ValidateObjectFunc, includeUninitialized bool) (runtime.Object, error) {
+	if rbacregistry.EscalationAllowed(ctx) {
+		return s.StandardStorage.Create(ctx, obj, createValidation, includeUninitialized)
+	}
+
+	// Get the namespace from the context (populated from the URL).
+	// The namespace in the object can be empty until StandardStorage.Create()->BeforeCreate() populates it from the context.
+	namespace, ok := genericapirequest.NamespaceFrom(ctx)
+	if !ok {
+		return nil, errors.NewBadRequest("namespace is required")
+	}
+
+	roleBinding := obj.(*rbac.RoleBinding)
+	if rbacregistry.BindingAuthorized(ctx, roleBinding.RoleRef, namespace, s.authorizer) {
+		return s.StandardStorage.Create(ctx, obj, createValidation, includeUninitialized)
+	}
+
+	v1RoleRef := rbacv1.RoleRef{}
+	err := rbacv1helpers.Convert_rbac_RoleRef_To_v1_RoleRef(&roleBinding.RoleRef, &v1RoleRef, nil)
+	if err != nil {
+		return nil, err
+	}
+	rules, err := s.ruleResolver.GetRoleReferenceRules(v1RoleRef, namespace)
+	if err != nil {
+		return nil, err
+	}
+	if err := rbacregistryvalidation.ConfirmNoEscalation(ctx, s.ruleResolver, rules); err != nil {
+		return nil, errors.NewForbidden(groupResource, roleBinding.Name, err)
+	}
+	return s.StandardStorage.Create(ctx, obj, createValidation, includeUninitialized)
+}
+
+func (s *Storage) Update(ctx context.Context, name string, obj rest.UpdatedObjectInfo, createValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc) (runtime.Object, bool, error) {
+	if rbacregistry.EscalationAllowed(ctx) {
+		return s.StandardStorage.Update(ctx, name, obj, createValidation, updateValidation)
+	}
+
+	nonEscalatingInfo := rest.WrapUpdatedObjectInfo(obj, func(ctx context.Context, obj runtime.Object, oldObj runtime.Object) (runtime.Object, error) {
+		// Get the namespace from the context (populated from the URL).
+		// The namespace in the object can be empty until StandardStorage.Update()->BeforeUpdate() populates it from the context.
+		namespace, ok := genericapirequest.NamespaceFrom(ctx)
+		if !ok {
+			return nil, errors.NewBadRequest("namespace is required")
+		}
+
+		roleBinding := obj.(*rbac.RoleBinding)
+
+		// if we're only mutating fields needed for the GC to eventually delete this obj, return
+		if rbacregistry.IsOnlyMutatingGCFields(obj, oldObj, kapihelper.Semantic) {
+			return obj, nil
+		}
+
+		// if we're explicitly authorized to bind this role, return
+		if rbacregistry.BindingAuthorized(ctx, roleBinding.RoleRef, namespace, s.authorizer) {
+			return obj, nil
+		}
+
+		// Otherwise, see if we already have all the permissions contained in the referenced role
+		v1RoleRef := rbacv1.RoleRef{}
+		err := rbacv1helpers.Convert_rbac_RoleRef_To_v1_RoleRef(&roleBinding.RoleRef, &v1RoleRef, nil)
+		if err != nil {
+			return nil, err
+		}
+		rules, err := s.ruleResolver.GetRoleReferenceRules(v1RoleRef, namespace)
+		if err != nil {
+			return nil, err
+		}
+		if err := rbacregistryvalidation.ConfirmNoEscalation(ctx, s.ruleResolver, rules); err != nil {
+			return nil, errors.NewForbidden(groupResource, roleBinding.Name, err)
+		}
+		return obj, nil
+	})
+
+	return s.StandardStorage.Update(ctx, name, nonEscalatingInfo, createValidation, updateValidation)
+}