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authorIan Gudger <igudger@google.com>2019-03-08 20:26:55 -0800
committerShentubot <shentubot@google.com>2019-03-08 20:27:58 -0800
commit281092e842445cfb9ff474aae81c169954b469cb (patch)
tree674d9225402b69cc3323494b16d393e88e756482 /test
parent86036f979b34855f0c945056f908961ccb804c1e (diff)
Make IP_MULTICAST_LOOP and IP_MULTICAST_TTL allow setting int or char.
This is the correct Linux behavior, and at least PHP depends on it. PiperOrigin-RevId: 237565639 Change-Id: I931af09c8ed99a842cf70d22bfe0b65e330c4137
Diffstat (limited to 'test')
-rw-r--r--test/syscalls/linux/socket_ip_udp_generic.cc84
1 files changed, 84 insertions, 0 deletions
diff --git a/test/syscalls/linux/socket_ip_udp_generic.cc b/test/syscalls/linux/socket_ip_udp_generic.cc
index 197783e55..432017b12 100644
--- a/test/syscalls/linux/socket_ip_udp_generic.cc
+++ b/test/syscalls/linux/socket_ip_udp_generic.cc
@@ -117,6 +117,23 @@ TEST_P(UDPSocketPairTest, SetUDPMulticastTTLAboveMax) {
SyscallFailsWithErrno(EINVAL));
}
+TEST_P(UDPSocketPairTest, SetUDPMulticastTTLChar) {
+ auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
+
+ constexpr char kArbitrary = 6;
+ EXPECT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_TTL,
+ &kArbitrary, sizeof(kArbitrary)),
+ 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, kArbitrary);
+}
+
TEST_P(UDPSocketPairTest, SetEmptyIPAddMembership) {
auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
@@ -126,5 +143,72 @@ TEST_P(UDPSocketPairTest, SetEmptyIPAddMembership) {
SyscallFailsWithErrno(EINVAL));
}
+TEST_P(UDPSocketPairTest, MulticastLoopDefault) {
+ 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_LOOP,
+ &get, &get_len),
+ SyscallSucceedsWithValue(0));
+ EXPECT_EQ(get_len, sizeof(get));
+ EXPECT_EQ(get, kSockOptOn);
+}
+
+TEST_P(UDPSocketPairTest, SetMulticastLoop) {
+ auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
+
+ ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &kSockOptOff, sizeof(kSockOptOff)),
+ SyscallSucceeds());
+
+ int get = -1;
+ socklen_t get_len = sizeof(get);
+ EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &get, &get_len),
+ SyscallSucceedsWithValue(0));
+ EXPECT_EQ(get_len, sizeof(get));
+ EXPECT_EQ(get, kSockOptOff);
+
+ ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &kSockOptOn, sizeof(kSockOptOn)),
+ SyscallSucceeds());
+
+ EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &get, &get_len),
+ SyscallSucceedsWithValue(0));
+ EXPECT_EQ(get_len, sizeof(get));
+ EXPECT_EQ(get, kSockOptOn);
+}
+
+TEST_P(UDPSocketPairTest, SetMulticastLoopChar) {
+ auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
+
+ constexpr char kSockOptOnChar = kSockOptOn;
+ constexpr char kSockOptOffChar = kSockOptOff;
+
+ ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &kSockOptOffChar, sizeof(kSockOptOffChar)),
+ SyscallSucceeds());
+
+ int get = -1;
+ socklen_t get_len = sizeof(get);
+ EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &get, &get_len),
+ SyscallSucceedsWithValue(0));
+ EXPECT_EQ(get_len, sizeof(get));
+ EXPECT_EQ(get, kSockOptOff);
+
+ ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &kSockOptOnChar, sizeof(kSockOptOnChar)),
+ SyscallSucceeds());
+
+ EXPECT_THAT(getsockopt(sockets->first_fd(), IPPROTO_IP, IP_MULTICAST_LOOP,
+ &get, &get_len),
+ SyscallSucceedsWithValue(0));
+ EXPECT_EQ(get_len, sizeof(get));
+ EXPECT_EQ(get, kSockOptOn);
+}
+
} // namespace testing
} // namespace gvisor