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// Copyright 2018 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 <stdio.h>
#include <sys/un.h>
#include "gtest/gtest.h"
#include "gtest/gtest.h"
#include "test/syscalls/linux/socket_test_util.h"
#include "test/syscalls/linux/unix_domain_socket_test_util.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
// Test fixture for tests that apply to pairs of unbound abstract unix sockets.
using UnboundAbstractUnixSocketPairTest = SocketPairTest;
TEST_P(UnboundAbstractUnixSocketPairTest, AddressAfterNull) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
struct sockaddr_un addr =
*reinterpret_cast<const struct sockaddr_un*>(sockets->first_addr());
ASSERT_EQ(addr.sun_path[sizeof(addr.sun_path) - 1], 0);
SKIP_IF(addr.sun_path[sizeof(addr.sun_path) - 2] != 0 ||
addr.sun_path[sizeof(addr.sun_path) - 3] != 0);
addr.sun_path[sizeof(addr.sun_path) - 2] = 'a';
ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
sockets->first_addr_size()),
SyscallSucceeds());
ASSERT_THAT(bind(sockets->second_fd(),
reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr)),
SyscallSucceeds());
}
TEST_P(UnboundAbstractUnixSocketPairTest, ShortAddressNotExtended) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
struct sockaddr_un addr =
*reinterpret_cast<const struct sockaddr_un*>(sockets->first_addr());
ASSERT_EQ(addr.sun_path[sizeof(addr.sun_path) - 1], 0);
ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
sockets->first_addr_size() - 1),
SyscallSucceeds());
ASSERT_THAT(bind(sockets->second_fd(), sockets->first_addr(),
sockets->first_addr_size()),
SyscallSucceeds());
}
TEST_P(UnboundAbstractUnixSocketPairTest, BindNothing) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
struct sockaddr_un addr = {.sun_family = AF_UNIX};
ASSERT_THAT(bind(sockets->first_fd(),
reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr)),
SyscallSucceeds());
}
TEST_P(UnboundAbstractUnixSocketPairTest, GetSockNameFullLength) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
sockets->first_addr_size()),
SyscallSucceeds());
sockaddr_storage addr = {};
socklen_t addr_len = sizeof(addr);
ASSERT_THAT(getsockname(sockets->first_fd(),
reinterpret_cast<struct sockaddr*>(&addr), &addr_len),
SyscallSucceeds());
EXPECT_EQ(addr_len, sockets->first_addr_size());
}
TEST_P(UnboundAbstractUnixSocketPairTest, GetSockNamePartialLength) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
ASSERT_THAT(bind(sockets->first_fd(), sockets->first_addr(),
sockets->first_addr_size() - 1),
SyscallSucceeds());
sockaddr_storage addr = {};
socklen_t addr_len = sizeof(addr);
ASSERT_THAT(getsockname(sockets->first_fd(),
reinterpret_cast<struct sockaddr*>(&addr), &addr_len),
SyscallSucceeds());
EXPECT_EQ(addr_len, sockets->first_addr_size() - 1);
}
INSTANTIATE_TEST_SUITE_P(
AllUnixDomainSockets, UnboundAbstractUnixSocketPairTest,
::testing::ValuesIn(ApplyVec<SocketPairKind>(
AbstractUnboundUnixDomainSocketPair,
AllBitwiseCombinations(List<int>{SOCK_STREAM, SOCK_SEQPACKET,
SOCK_DGRAM},
List<int>{0, SOCK_NONBLOCK}))));
} // namespace
} // namespace testing
} // namespace gvisor
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