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// Copyright 2018 Google LLC
//
// 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 "test/syscalls/linux/socket_ip_udp_generic.h"
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include "gtest/gtest.h"
#include "gtest/gtest.h"
#include "test/syscalls/linux/socket_test_util.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
TEST_P(UDPSocketPairTest, MulticastTTLDefault) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
int get = -1;
socklen_t get_len = sizeof(get);
EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&get, &get_len),
SyscallSucceedsWithValue(0));
EXPECT_EQ(get_len, sizeof(get));
EXPECT_EQ(get, 1);
}
TEST_P(UDPSocketPairTest, SetUDPMulticastTTLMin) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
constexpr int kMin = 0;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kMin, sizeof(kMin)),
SyscallSucceeds());
int get = -1;
socklen_t get_len = sizeof(get);
EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&get, &get_len),
SyscallSucceedsWithValue(0));
EXPECT_EQ(get_len, sizeof(get));
EXPECT_EQ(get, kMin);
}
TEST_P(UDPSocketPairTest, SetUDPMulticastTTLMax) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
constexpr int kMax = 255;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kMax, sizeof(kMax)),
SyscallSucceeds());
int get = -1;
socklen_t get_len = sizeof(get);
EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&get, &get_len),
SyscallSucceedsWithValue(0));
EXPECT_EQ(get_len, sizeof(get));
EXPECT_EQ(get, kMax);
}
TEST_P(UDPSocketPairTest, SetUDPMulticastTTLNegativeOne) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
constexpr int kArbitrary = 6;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kArbitrary, sizeof(kArbitrary)),
SyscallSucceeds());
constexpr int kNegOne = -1;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kNegOne, sizeof(kNegOne)),
SyscallSucceeds());
int get = -1;
socklen_t get_len = sizeof(get);
EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&get, &get_len),
SyscallSucceedsWithValue(0));
EXPECT_EQ(get_len, sizeof(get));
EXPECT_EQ(get, 1);
}
TEST_P(UDPSocketPairTest, SetUDPMulticastTTLBelowMin) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
constexpr int kBelowMin = -2;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kBelowMin, sizeof(kBelowMin)),
SyscallFailsWithErrno(EINVAL));
}
TEST_P(UDPSocketPairTest, SetUDPMulticastTTLAboveMax) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
constexpr int kAboveMax = 256;
EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
&kAboveMax, sizeof(kAboveMax)),
SyscallFailsWithErrno(EINVAL));
}
TEST_P(UDPSocketPairTest, SetEmptyIPAddMembership) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
struct ip_mreqn req = {};
int ret = setsockopt(sockets->first_fd(), IPPROTO_IP, IP_ADD_MEMBERSHIP, &req,
sizeof(req));
// FIXME: gVisor returns the incorrect errno.
if (IsRunningOnGvisor()) {
EXPECT_THAT(ret, SyscallFails());
} else {
EXPECT_THAT(ret, SyscallFailsWithErrno(EINVAL));
}
}
} // namespace testing
} // namespace gvisor
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