146 lines
5.5 KiB
C++
146 lines
5.5 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 <stdio.h>
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#include <sys/socket.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_P(AllSocketPairTest, Bind) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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}
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TEST_P(AllSocketPairTest, BindTooLong) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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// first_addr is a sockaddr_storage being used as a sockaddr_un. Use the full
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// length which is longer than expected for a Unix socket.
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sizeof(sockaddr_storage)),
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SyscallFailsWithErrno(EINVAL));
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}
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TEST_P(AllSocketPairTest, DoubleBindSocket) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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EXPECT_THAT(
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bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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// Linux 4.09 returns EINVAL here, but some time before 4.19 it switched
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// to EADDRINUSE.
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AnyOf(SyscallFailsWithErrno(EADDRINUSE), SyscallFailsWithErrno(EINVAL)));
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}
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TEST_P(AllSocketPairTest, GetLocalAddr) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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socklen_t addressLength = sockets->first_addr_size();
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struct sockaddr_storage address = {};
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ASSERT_THAT(getsockname(sockets->first_fd(), (struct sockaddr*)(&address),
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&addressLength),
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SyscallSucceeds());
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EXPECT_EQ(
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0, memcmp(&address, sockets->first_addr(), sockets->first_addr_size()));
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}
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TEST_P(AllSocketPairTest, GetLocalAddrWithoutBind) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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socklen_t addressLength = sockets->first_addr_size();
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struct sockaddr_storage received_address = {};
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ASSERT_THAT(
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getsockname(sockets->first_fd(), (struct sockaddr*)(&received_address),
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&addressLength),
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SyscallSucceeds());
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struct sockaddr_storage want_address = {};
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want_address.ss_family = sockets->first_addr()->sa_family;
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EXPECT_EQ(0, memcmp(&received_address, &want_address, addressLength));
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}
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TEST_P(AllSocketPairTest, GetRemoteAddressWithoutConnect) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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socklen_t addressLength = sockets->first_addr_size();
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struct sockaddr_storage address = {};
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ASSERT_THAT(getpeername(sockets->second_fd(), (struct sockaddr*)(&address),
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&addressLength),
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SyscallFailsWithErrno(ENOTCONN));
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}
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TEST_P(AllSocketPairTest, DoubleBindAddress) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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EXPECT_THAT(bind(sockets->second_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallFailsWithErrno(EADDRINUSE));
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}
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TEST_P(AllSocketPairTest, Unbind) {
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auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
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ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
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// Filesystem Unix sockets do not release their address when closed.
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if (sockets->first_addr()->sa_data[0] != 0) {
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ASSERT_THAT(bind(sockets->second_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallFailsWithErrno(EADDRINUSE));
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return;
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}
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ASSERT_THAT(bind(sockets->second_fd(), sockets->first_addr(),
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sockets->first_addr_size()),
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SyscallSucceeds());
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ASSERT_THAT(close(sockets->release_second_fd()), SyscallSucceeds());
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}
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INSTANTIATE_TEST_SUITE_P(
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AllUnixDomainSockets, AllSocketPairTest,
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::testing::ValuesIn(VecCat<SocketPairKind>(
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ApplyVec<SocketPairKind>(
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FilesystemUnboundUnixDomainSocketPair,
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AllBitwiseCombinations(List<int>{SOCK_STREAM, SOCK_DGRAM,
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SOCK_SEQPACKET},
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List<int>{0, SOCK_NONBLOCK})),
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ApplyVec<SocketPairKind>(
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AbstractUnboundUnixDomainSocketPair,
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AllBitwiseCombinations(List<int>{SOCK_STREAM, SOCK_DGRAM,
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SOCK_SEQPACKET},
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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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