112 lines
4.0 KiB
C++
112 lines
4.0 KiB
C++
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <poll.h>
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#include <stdio.h>
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#include <sys/un.h>
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#include "gtest/gtest.h"
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#include "test/syscalls/linux/socket_test_util.h"
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#include "test/syscalls/linux/unix_domain_socket_test_util.h"
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#include "test/util/test_util.h"
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namespace gvisor {
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namespace testing {
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namespace {
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// Test fixture for tests that apply to pairs of connected stream unix sockets.
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using StreamUnixSocketPairTest = SocketPairTest;
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TEST_P(StreamUnixSocketPairTest, WriteOneSideClosed) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
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constexpr char kStr[] = "abc";
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ASSERT_THAT(write(sockets->second_fd(), kStr, 3),
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SyscallFailsWithErrno(EPIPE));
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}
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TEST_P(StreamUnixSocketPairTest, ReadOneSideClosed) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
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char data[10] = {};
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ASSERT_THAT(read(sockets->second_fd(), data, sizeof(data)),
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SyscallSucceedsWithValue(0));
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}
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TEST_P(StreamUnixSocketPairTest, RecvmsgOneSideClosed) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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// Set timeout so that it will not wait for ever.
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struct timeval tv {
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.tv_sec = 0, .tv_usec = 10
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};
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EXPECT_THAT(setsockopt(sockets->second_fd(), SOL_SOCKET, SO_RCVTIMEO, &tv,
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sizeof(tv)),
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SyscallSucceeds());
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ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
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char received_data[10] = {};
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struct iovec iov;
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iov.iov_base = received_data;
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iov.iov_len = sizeof(received_data);
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struct msghdr msg = {};
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msg.msg_flags = -1;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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ASSERT_THAT(recvmsg(sockets->second_fd(), &msg, MSG_WAITALL),
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SyscallSucceedsWithValue(0));
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}
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TEST_P(StreamUnixSocketPairTest, ReadOneSideClosedWithUnreadData) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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char buf[10] = {};
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ASSERT_THAT(RetryEINTR(write)(sockets->second_fd(), buf, sizeof(buf)),
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SyscallSucceedsWithValue(sizeof(buf)));
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ASSERT_THAT(shutdown(sockets->first_fd(), SHUT_RDWR), SyscallSucceeds());
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ASSERT_THAT(RetryEINTR(read)(sockets->second_fd(), buf, sizeof(buf)),
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SyscallSucceedsWithValue(0));
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ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
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ASSERT_THAT(RetryEINTR(read)(sockets->second_fd(), buf, sizeof(buf)),
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SyscallFailsWithErrno(ECONNRESET));
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}
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INSTANTIATE_TEST_SUITE_P(
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AllUnixDomainSockets, StreamUnixSocketPairTest,
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::testing::ValuesIn(IncludeReversals(VecCat<SocketPairKind>(
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ApplyVec<SocketPairKind>(UnixDomainSocketPair,
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AllBitwiseCombinations(List<int>{SOCK_STREAM},
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List<int>{
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0, SOCK_NONBLOCK})),
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ApplyVec<SocketPairKind>(FilesystemBoundUnixDomainSocketPair,
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AllBitwiseCombinations(List<int>{SOCK_STREAM},
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List<int>{
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0, SOCK_NONBLOCK})),
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ApplyVec<SocketPairKind>(
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AbstractBoundUnixDomainSocketPair,
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AllBitwiseCombinations(List<int>{SOCK_STREAM},
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List<int>{0, SOCK_NONBLOCK}))))));
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} // namespace
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} // namespace testing
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} // namespace gvisor
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