diff options
Diffstat (limited to 'test/syscalls/linux/network_namespace.cc')
-rw-r--r-- | test/syscalls/linux/network_namespace.cc | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/test/syscalls/linux/network_namespace.cc b/test/syscalls/linux/network_namespace.cc deleted file mode 100644 index 6ea48c263..000000000 --- a/test/syscalls/linux/network_namespace.cc +++ /dev/null @@ -1,121 +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. - -#include <net/if.h> -#include <sched.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/types.h> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/synchronization/notification.h" -#include "test/syscalls/linux/socket_test_util.h" -#include "test/util/capability_util.h" -#include "test/util/memory_util.h" -#include "test/util/test_util.h" -#include "test/util/thread_util.h" - -namespace gvisor { -namespace testing { - -namespace { - -using TestFunc = std::function<PosixError()>; -using RunFunc = std::function<PosixError(TestFunc)>; - -struct NamespaceStrategy { - RunFunc run; - - static NamespaceStrategy Of(RunFunc run) { - NamespaceStrategy s; - s.run = run; - return s; - } -}; - -PosixError RunWithUnshare(TestFunc fn) { - PosixError err = PosixError(-1, "function did not return a value"); - ScopedThread t([&] { - if (unshare(CLONE_NEWNET) != 0) { - err = PosixError(errno); - return; - } - err = fn(); - }); - t.Join(); - return err; -} - -PosixError RunWithClone(TestFunc fn) { - struct Args { - absl::Notification n; - TestFunc fn; - PosixError err; - }; - Args args; - args.fn = fn; - args.err = PosixError(-1, "function did not return a value"); - - ASSIGN_OR_RETURN_ERRNO( - Mapping child_stack, - MmapAnon(kPageSize, PROT_READ | PROT_WRITE, MAP_PRIVATE)); - pid_t child = clone( - +[](void *arg) { - Args *args = reinterpret_cast<Args *>(arg); - args->err = args->fn(); - args->n.Notify(); - syscall(SYS_exit, 0); // Exit manually. No return address on stack. - return 0; - }, - reinterpret_cast<void *>(child_stack.addr() + kPageSize), - CLONE_NEWNET | CLONE_THREAD | CLONE_SIGHAND | CLONE_VM, &args); - if (child < 0) { - return PosixError(errno, "clone() failed"); - } - args.n.WaitForNotification(); - return args.err; -} - -class NetworkNamespaceTest - : public ::testing::TestWithParam<NamespaceStrategy> {}; - -TEST_P(NetworkNamespaceTest, LoopbackExists) { - SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_ADMIN))); - - EXPECT_NO_ERRNO(GetParam().run([]() { - // TODO(gvisor.dev/issue/1833): Update this to test that only "lo" exists. - // Check loopback device exists. - int sock = socket(AF_INET, SOCK_DGRAM, 0); - if (sock < 0) { - return PosixError(errno, "socket() failed"); - } - struct ifreq ifr; - snprintf(ifr.ifr_name, IFNAMSIZ, "lo"); - if (ioctl(sock, SIOCGIFINDEX, &ifr) < 0) { - return PosixError(errno, "ioctl() failed, lo cannot be found"); - } - return NoError(); - })); -} - -INSTANTIATE_TEST_SUITE_P( - AllNetworkNamespaceTest, NetworkNamespaceTest, - ::testing::Values(NamespaceStrategy::Of(RunWithUnshare), - NamespaceStrategy::Of(RunWithClone))); - -} // namespace - -} // namespace testing -} // namespace gvisor |