diff options
Diffstat (limited to 'pkg/tcpip/network/internal/testutil')
-rw-r--r-- | pkg/tcpip/network/internal/testutil/BUILD | 5 | ||||
-rw-r--r-- | pkg/tcpip/network/internal/testutil/testutil.go | 68 | ||||
-rw-r--r-- | pkg/tcpip/network/internal/testutil/testutil_unsafe.go | 26 |
3 files changed, 1 insertions, 98 deletions
diff --git a/pkg/tcpip/network/internal/testutil/BUILD b/pkg/tcpip/network/internal/testutil/BUILD index 1c4f583c7..cec3e62c4 100644 --- a/pkg/tcpip/network/internal/testutil/BUILD +++ b/pkg/tcpip/network/internal/testutil/BUILD @@ -4,10 +4,7 @@ package(licenses = ["notice"]) go_library( name = "testutil", - srcs = [ - "testutil.go", - "testutil_unsafe.go", - ], + srcs = ["testutil.go"], visibility = [ "//pkg/tcpip/network/arp:__pkg__", "//pkg/tcpip/network/internal/fragmentation:__pkg__", diff --git a/pkg/tcpip/network/internal/testutil/testutil.go b/pkg/tcpip/network/internal/testutil/testutil.go index e2cf24b67..605e9ef8d 100644 --- a/pkg/tcpip/network/internal/testutil/testutil.go +++ b/pkg/tcpip/network/internal/testutil/testutil.go @@ -19,8 +19,6 @@ package testutil import ( "fmt" "math/rand" - "reflect" - "strings" "gvisor.dev/gvisor/pkg/tcpip" "gvisor.dev/gvisor/pkg/tcpip/buffer" @@ -129,69 +127,3 @@ func MakeRandPkt(transportHeaderLength int, extraHeaderReserveLength int, viewSi } return pkt } - -func checkFieldCounts(ref, multi reflect.Value) error { - refTypeName := ref.Type().Name() - multiTypeName := multi.Type().Name() - refNumField := ref.NumField() - multiNumField := multi.NumField() - - if refNumField != multiNumField { - return fmt.Errorf("type %s has an incorrect number of fields: got = %d, want = %d (same as type %s)", multiTypeName, multiNumField, refNumField, refTypeName) - } - - return nil -} - -func validateField(ref reflect.Value, refName string, m tcpip.MultiCounterStat, multiName string) error { - s, ok := ref.Addr().Interface().(**tcpip.StatCounter) - if !ok { - return fmt.Errorf("expected ref type's to be *StatCounter, but its type is %s", ref.Type().Elem().Name()) - } - - // The field names are expected to match (case insensitive). - if !strings.EqualFold(refName, multiName) { - return fmt.Errorf("wrong field name: got = %s, want = %s", multiName, refName) - } - - base := (*s).Value() - m.Increment() - if (*s).Value() != base+1 { - return fmt.Errorf("updates to the '%s MultiCounterStat' counters are not reflected in the '%s CounterStat'", multiName, refName) - } - - return nil -} - -// ValidateMultiCounterStats verifies that every counter stored in multi is -// correctly tracking its counterpart in the given counters. -func ValidateMultiCounterStats(multi reflect.Value, counters []reflect.Value) error { - for _, c := range counters { - if err := checkFieldCounts(c, multi); err != nil { - return err - } - } - - for i := 0; i < multi.NumField(); i++ { - multiName := multi.Type().Field(i).Name - multiUnsafe := unsafeExposeUnexportedFields(multi.Field(i)) - - if m, ok := multiUnsafe.Addr().Interface().(*tcpip.MultiCounterStat); ok { - for _, c := range counters { - if err := validateField(unsafeExposeUnexportedFields(c.Field(i)), c.Type().Field(i).Name, *m, multiName); err != nil { - return err - } - } - } else { - var countersNextField []reflect.Value - for _, c := range counters { - countersNextField = append(countersNextField, c.Field(i)) - } - if err := ValidateMultiCounterStats(multi.Field(i), countersNextField); err != nil { - return err - } - } - } - - return nil -} diff --git a/pkg/tcpip/network/internal/testutil/testutil_unsafe.go b/pkg/tcpip/network/internal/testutil/testutil_unsafe.go deleted file mode 100644 index 5ff764800..000000000 --- a/pkg/tcpip/network/internal/testutil/testutil_unsafe.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor 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 testutil - -import ( - "reflect" - "unsafe" -) - -// unsafeExposeUnexportedFields takes a Value and returns a version of it in -// which even unexported fields can be read and written. -func unsafeExposeUnexportedFields(a reflect.Value) reflect.Value { - return reflect.NewAt(a.Type(), unsafe.Pointer(a.UnsafeAddr())).Elem() -} |