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Add test for TCP getpeername

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This doesn't appear to be covered by any existing tests. Check that the peer
address for a connected TCP socket matches the local address for the
corresponding accepted socket, and vice-versa.

Fixes #8020

PiperOrigin-RevId: 477186443
This commit is contained in:
Alex Konradi
2022-09-27 09:09:31 -07:00
committed by gVisor bot
parent a22e675596
commit c9d9899ea9
1 changed files with 29 additions and 0 deletions
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test/syscalls/linux/tcp_socket.cc
+29
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@@ -172,6 +172,35 @@ void TcpSocketTest::TearDown() {
}
}
TEST_P(TcpSocketTest, ConnectedAcceptedPeerAndLocalAreReciprocals) {
struct FdAndAddrs {
int fd;
sockaddr_storage peer;
socklen_t peer_len = sizeof(peer);
sockaddr_storage name;
socklen_t name_len = sizeof(name);
};
FdAndAddrs connected{.fd = first_fd}, accepted{.fd = second_fd};
for (FdAndAddrs* fd_and_addrs : {&connected, &accepted}) {
ASSERT_THAT(getpeername(fd_and_addrs->fd, AsSockAddr(&fd_and_addrs->peer),
&fd_and_addrs->peer_len),
SyscallSucceeds());
ASSERT_NE(fd_and_addrs->peer_len, 0);
ASSERT_THAT(getsockname(fd_and_addrs->fd, AsSockAddr(&fd_and_addrs->name),
&fd_and_addrs->name_len),
SyscallSucceeds());
ASSERT_NE(fd_and_addrs->name_len, 0);
}
ASSERT_EQ(connected.peer_len, accepted.name_len);
EXPECT_EQ(memcmp(&connected.peer, &accepted.name, connected.peer_len), 0);
ASSERT_EQ(connected.name_len, accepted.peer_len);
EXPECT_EQ(memcmp(&connected.name, &accepted.peer, connected.name_len), 0);
}
TEST_P(TcpSocketTest, ConnectOnEstablishedConnection) {
sockaddr_storage addr =
ASSERT_NO_ERRNO_AND_VALUE(InetLoopbackAddr(GetParam()));