diff options
Diffstat (limited to 'test/syscalls/linux/socket_unix.cc')
| -rw-r--r-- | test/syscalls/linux/socket_unix.cc | 1508 |
1 files changed, 77 insertions, 1431 deletions
diff --git a/test/syscalls/linux/socket_unix.cc b/test/syscalls/linux/socket_unix.cc index 95cf8d2a3..875f0391f 100644 --- a/test/syscalls/linux/socket_unix.cc +++ b/test/syscalls/linux/socket_unix.cc @@ -32,6 +32,9 @@ #include "test/util/test_util.h" #include "test/util/thread_util.h" +// This file contains tests specific to Unix domain sockets. It does not contain +// tests for UDS control messages. Those belong in socket_unix_cmsg.cc. +// // This file is a generic socket test file. It must be built with another file // that provides the test types. @@ -40,1430 +43,6 @@ namespace testing { namespace { -TEST_P(UnixSocketPairTest, BasicFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char received_data[20]; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvSingleFD(sockets->second_fd(), &fd, received_data, - sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - ASSERT_NO_FATAL_FAILURE(TransferTest(fd, pair->first_fd())); -} - -TEST_P(UnixSocketPairTest, BasicTwoFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair1 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - auto pair2 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - int sent_fds[] = {pair1->second_fd(), pair2->second_fd()}; - - ASSERT_NO_FATAL_FAILURE( - SendFDs(sockets->first_fd(), sent_fds, 2, sent_data, sizeof(sent_data))); - - char received_data[20]; - int received_fds[] = {-1, -1}; - - ASSERT_NO_FATAL_FAILURE(RecvFDs(sockets->second_fd(), received_fds, 2, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - ASSERT_NO_FATAL_FAILURE(TransferTest(received_fds[0], pair1->first_fd())); - ASSERT_NO_FATAL_FAILURE(TransferTest(received_fds[1], pair2->first_fd())); -} - -TEST_P(UnixSocketPairTest, BasicThreeFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair1 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - auto pair2 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - auto pair3 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - int sent_fds[] = {pair1->second_fd(), pair2->second_fd(), pair3->second_fd()}; - - ASSERT_NO_FATAL_FAILURE( - SendFDs(sockets->first_fd(), sent_fds, 3, sent_data, sizeof(sent_data))); - - char received_data[20]; - int received_fds[] = {-1, -1, -1}; - - ASSERT_NO_FATAL_FAILURE(RecvFDs(sockets->second_fd(), received_fds, 3, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - ASSERT_NO_FATAL_FAILURE(TransferTest(received_fds[0], pair1->first_fd())); - ASSERT_NO_FATAL_FAILURE(TransferTest(received_fds[1], pair2->first_fd())); - ASSERT_NO_FATAL_FAILURE(TransferTest(received_fds[2], pair3->first_fd())); -} - -TEST_P(UnixSocketPairTest, BadFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - int sent_fd = -1; - - struct msghdr msg = {}; - char control[CMSG_SPACE(sizeof(sent_fd))]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_len = CMSG_LEN(sizeof(sent_fd)); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - memcpy(CMSG_DATA(cmsg), &sent_fd, sizeof(sent_fd)); - - struct iovec iov; - iov.iov_base = sent_data; - iov.iov_len = sizeof(sent_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(sendmsg)(sockets->first_fd(), &msg, 0), - SyscallFailsWithErrno(EBADF)); -} - -// BasicFDPassNoSpace starts off by sending a single FD just like BasicFDPass. -// The difference is that when calling recvmsg, no space for FDs is provided, -// only space for the cmsg header. -TEST_P(UnixSocketPairTest, BasicFDPassNoSpace) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char received_data[20]; - - struct msghdr msg = {}; - std::vector<char> control(CMSG_SPACE(0)); - msg.msg_control = &control[0]; - msg.msg_controllen = control.size(); - - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_controllen, 0); - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -// BasicFDPassNoSpaceMsgCtrunc sends an FD, but does not provide any space to -// receive it. It then verifies that the MSG_CTRUNC flag is set in the msghdr. -TEST_P(UnixSocketPairTest, BasicFDPassNoSpaceMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - std::vector<char> control(CMSG_SPACE(0)); - msg.msg_control = &control[0]; - msg.msg_controllen = control.size(); - - char received_data[sizeof(sent_data)]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_controllen, 0); - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); -} - -// BasicFDPassNullControlMsgCtrunc sends an FD and sets contradictory values for -// msg_controllen and msg_control. msg_controllen is set to the correct size to -// accomidate the FD, but msg_control is set to NULL. In this case, msg_control -// should override msg_controllen. -TEST_P(UnixSocketPairTest, BasicFDPassNullControlMsgCtrunc) { - // FIXME(gvisor.dev/issue/207): Fix handling of NULL msg_control. - SKIP_IF(IsRunningOnGvisor()); - - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - msg.msg_controllen = CMSG_SPACE(1); - - char received_data[sizeof(sent_data)]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_controllen, 0); - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); -} - -// BasicFDPassNotEnoughSpaceMsgCtrunc sends an FD, but does not provide enough -// space to receive it. It then verifies that the MSG_CTRUNC flag is set in the -// msghdr. -TEST_P(UnixSocketPairTest, BasicFDPassNotEnoughSpaceMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - std::vector<char> control(CMSG_SPACE(0) + 1); - msg.msg_control = &control[0]; - msg.msg_controllen = control.size(); - - char received_data[sizeof(sent_data)]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_controllen, 0); - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); -} - -// BasicThreeFDPassTruncationMsgCtrunc sends three FDs, but only provides enough -// space to receive two of them. It then verifies that the MSG_CTRUNC flag is -// set in the msghdr. -TEST_P(UnixSocketPairTest, BasicThreeFDPassTruncationMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair1 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - auto pair2 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - auto pair3 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - int sent_fds[] = {pair1->second_fd(), pair2->second_fd(), pair3->second_fd()}; - - ASSERT_NO_FATAL_FAILURE( - SendFDs(sockets->first_fd(), sent_fds, 3, sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - std::vector<char> control(CMSG_SPACE(2 * sizeof(int))); - msg.msg_control = &control[0]; - msg.msg_controllen = control.size(); - - char received_data[sizeof(sent_data)]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(2 * sizeof(int))); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_RIGHTS); -} - -// BasicFDPassUnalignedRecv starts off by sending a single FD just like -// BasicFDPass. The difference is that when calling recvmsg, the length of the -// receive data is only aligned on a 4 byte boundry instead of the normal 8. -TEST_P(UnixSocketPairTest, BasicFDPassUnalignedRecv) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char received_data[20]; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvSingleFDUnaligned( - sockets->second_fd(), &fd, received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - ASSERT_NO_FATAL_FAILURE(TransferTest(fd, pair->first_fd())); -} - -// BasicFDPassUnalignedRecvNoMsgTrunc sends one FD and only provides enough -// space to receive just it. (Normally the minimum amount of space one would -// provide would be enough space for two FDs.) It then verifies that the -// MSG_CTRUNC flag is not set in the msghdr. -TEST_P(UnixSocketPairTest, BasicFDPassUnalignedRecvNoMsgTrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - char control[CMSG_SPACE(sizeof(int)) - sizeof(int)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_flags, 0); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(int))); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_RIGHTS); -} - -// BasicTwoFDPassUnalignedRecvTruncationMsgTrunc sends two FDs, but only -// provides enough space to receive one of them. It then verifies that the -// MSG_CTRUNC flag is set in the msghdr. -TEST_P(UnixSocketPairTest, BasicTwoFDPassUnalignedRecvTruncationMsgTrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - int sent_fds[] = {pair->first_fd(), pair->second_fd()}; - - ASSERT_NO_FATAL_FAILURE( - SendFDs(sockets->first_fd(), sent_fds, 2, sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - // CMSG_SPACE rounds up to two FDs, we only want one. - char control[CMSG_SPACE(sizeof(int)) - sizeof(int)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(int))); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_RIGHTS); -} - -TEST_P(UnixSocketPairTest, ConcurrentBasicFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - int sockfd1 = sockets->first_fd(); - auto recv_func = [sockfd1, sent_data]() { - char received_data[20]; - int fd = -1; - RecvSingleFD(sockfd1, &fd, received_data, sizeof(received_data)); - ASSERT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - char buf[20]; - ASSERT_THAT(ReadFd(fd, buf, sizeof(buf)), - SyscallSucceedsWithValue(sizeof(buf))); - ASSERT_THAT(WriteFd(fd, buf, sizeof(buf)), - SyscallSucceedsWithValue(sizeof(buf))); - }; - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->second_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - ScopedThread t(recv_func); - - RandomizeBuffer(sent_data, sizeof(sent_data)); - ASSERT_THAT(WriteFd(pair->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - char received_data[20]; - ASSERT_THAT(ReadFd(pair->first_fd(), received_data, sizeof(received_data)), - SyscallSucceedsWithValue(sizeof(received_data))); - - t.Join(); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -// FDPassNoRecv checks that the control message can be safely ignored by using -// read(2) instead of recvmsg(2). -TEST_P(UnixSocketPairTest, FDPassNoRecv) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - // Read while ignoring the passed FD. - char received_data[20]; - ASSERT_THAT( - ReadFd(sockets->second_fd(), received_data, sizeof(received_data)), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - // Check that the socket still works for reads and writes. - ASSERT_NO_FATAL_FAILURE( - TransferTest(sockets->first_fd(), sockets->second_fd())); -} - -// FDPassInterspersed1 checks that sent control messages cannot be read before -// their associated data has been read. -TEST_P(UnixSocketPairTest, FDPassInterspersed1) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char written_data[20]; - RandomizeBuffer(written_data, sizeof(written_data)); - - ASSERT_THAT(WriteFd(sockets->first_fd(), written_data, sizeof(written_data)), - SyscallSucceedsWithValue(sizeof(written_data))); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - // Check that we don't get a control message, but do get the data. - char received_data[20]; - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data)); - EXPECT_EQ(0, memcmp(written_data, received_data, sizeof(written_data))); -} - -// FDPassInterspersed2 checks that sent control messages cannot be read after -// their assocated data has been read while ignoring the control message by -// using read(2) instead of recvmsg(2). -TEST_P(UnixSocketPairTest, FDPassInterspersed2) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char written_data[20]; - RandomizeBuffer(written_data, sizeof(written_data)); - ASSERT_THAT(WriteFd(sockets->first_fd(), written_data, sizeof(written_data)), - SyscallSucceedsWithValue(sizeof(written_data))); - - char received_data[20]; - ASSERT_THAT( - ReadFd(sockets->second_fd(), received_data, sizeof(received_data)), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - EXPECT_EQ(0, memcmp(written_data, received_data, sizeof(written_data))); -} - -TEST_P(UnixSocketPairTest, FDPassNotCoalesced) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data1[20]; - RandomizeBuffer(sent_data1, sizeof(sent_data1)); - - auto pair1 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair1->second_fd(), - sent_data1, sizeof(sent_data1))); - - char sent_data2[20]; - RandomizeBuffer(sent_data2, sizeof(sent_data2)); - - auto pair2 = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair2->second_fd(), - sent_data2, sizeof(sent_data2))); - - char received_data1[sizeof(sent_data1) + sizeof(sent_data2)]; - int received_fd1 = -1; - - RecvSingleFD(sockets->second_fd(), &received_fd1, received_data1, - sizeof(received_data1), sizeof(sent_data1)); - - EXPECT_EQ(0, memcmp(sent_data1, received_data1, sizeof(sent_data1))); - TransferTest(pair1->first_fd(), pair1->second_fd()); - - char received_data2[sizeof(sent_data1) + sizeof(sent_data2)]; - int received_fd2 = -1; - - RecvSingleFD(sockets->second_fd(), &received_fd2, received_data2, - sizeof(received_data2), sizeof(sent_data2)); - - EXPECT_EQ(0, memcmp(sent_data2, received_data2, sizeof(sent_data2))); - TransferTest(pair2->first_fd(), pair2->second_fd()); -} - -TEST_P(UnixSocketPairTest, FDPassPeek) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char peek_data[20]; - int peek_fd = -1; - PeekSingleFD(sockets->second_fd(), &peek_fd, peek_data, sizeof(peek_data)); - EXPECT_EQ(0, memcmp(sent_data, peek_data, sizeof(sent_data))); - TransferTest(peek_fd, pair->first_fd()); - EXPECT_THAT(close(peek_fd), SyscallSucceeds()); - - char received_data[20]; - int received_fd = -1; - RecvSingleFD(sockets->second_fd(), &received_fd, received_data, - sizeof(received_data)); - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - TransferTest(received_fd, pair->first_fd()); - EXPECT_THAT(close(received_fd), SyscallSucceeds()); -} - -TEST_P(UnixSocketPairTest, BasicCredPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - EXPECT_EQ(sent_creds.pid, received_creds.pid); - EXPECT_EQ(sent_creds.uid, received_creds.uid); - EXPECT_EQ(sent_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, SendNullCredsBeforeSoPassCredRecvEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - ASSERT_NO_FATAL_FAILURE( - SendNullCmsg(sockets->first_fd(), sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds { - 0, 65534, 65534 - }; - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, SendNullCredsAfterSoPassCredRecvEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - SetSoPassCred(sockets->second_fd()); - - ASSERT_NO_FATAL_FAILURE( - SendNullCmsg(sockets->first_fd(), sent_data, sizeof(sent_data))); - - char received_data[20]; - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds; - ASSERT_THAT(want_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.gid = getgid(), SyscallSucceeds()); - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, SendNullCredsBeforeSoPassCredSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - ASSERT_NO_FATAL_FAILURE( - SendNullCmsg(sockets->first_fd(), sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->first_fd()); - - char received_data[20]; - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -TEST_P(UnixSocketPairTest, SendNullCredsAfterSoPassCredSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - SetSoPassCred(sockets->first_fd()); - - ASSERT_NO_FATAL_FAILURE( - SendNullCmsg(sockets->first_fd(), sent_data, sizeof(sent_data))); - - char received_data[20]; - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -TEST_P(UnixSocketPairTest, SendNullCredsBeforeSoPassCredRecvEndAfterSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - SetSoPassCred(sockets->first_fd()); - - ASSERT_NO_FATAL_FAILURE( - SendNullCmsg(sockets->first_fd(), sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds; - ASSERT_THAT(want_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.gid = getgid(), SyscallSucceeds()); - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, WriteBeforeSoPassCredRecvEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - ASSERT_THAT(WriteFd(sockets->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds { - 0, 65534, 65534 - }; - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, WriteAfterSoPassCredRecvEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - SetSoPassCred(sockets->second_fd()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - ASSERT_THAT(WriteFd(sockets->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - char received_data[20]; - - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds; - ASSERT_THAT(want_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.gid = getgid(), SyscallSucceeds()); - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, WriteBeforeSoPassCredSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - ASSERT_THAT(WriteFd(sockets->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - SetSoPassCred(sockets->first_fd()); - - char received_data[20]; - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -TEST_P(UnixSocketPairTest, WriteAfterSoPassCredSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - SetSoPassCred(sockets->first_fd()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - ASSERT_THAT(WriteFd(sockets->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - char received_data[20]; - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -TEST_P(UnixSocketPairTest, WriteBeforeSoPassCredRecvEndAfterSendEnd) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - SetSoPassCred(sockets->first_fd()); - - ASSERT_THAT(WriteFd(sockets->first_fd(), sent_data, sizeof(sent_data)), - SyscallSucceedsWithValue(sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - - struct ucred received_creds; - ASSERT_NO_FATAL_FAILURE(RecvCreds(sockets->second_fd(), &received_creds, - received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds; - ASSERT_THAT(want_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.gid = getgid(), SyscallSucceeds()); - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); -} - -TEST_P(UnixSocketPairTest, CredPassTruncated) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - struct msghdr msg = {}; - char control[CMSG_SPACE(0) + sizeof(pid_t)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - EXPECT_EQ(msg.msg_controllen, sizeof(control)); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, sizeof(control)); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_CREDENTIALS); - - pid_t pid = 0; - memcpy(&pid, CMSG_DATA(cmsg), sizeof(pid)); - EXPECT_EQ(pid, sent_creds.pid); -} - -// CredPassNoMsgCtrunc passes a full set of credentials. It then verifies that -// receiving the full set does not result in MSG_CTRUNC being set in the msghdr. -TEST_P(UnixSocketPairTest, CredPassNoMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - struct msghdr msg = {}; - char control[CMSG_SPACE(sizeof(struct ucred))]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - // The control message should not be truncated. - EXPECT_EQ(msg.msg_flags, 0); - EXPECT_EQ(msg.msg_controllen, sizeof(control)); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(struct ucred))); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_CREDENTIALS); -} - -// CredPassNoSpaceMsgCtrunc passes a full set of credentials. It then receives -// the data without providing space for any credentials and verifies that -// MSG_CTRUNC is set in the msghdr. -TEST_P(UnixSocketPairTest, CredPassNoSpaceMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - struct msghdr msg = {}; - char control[CMSG_SPACE(0)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - // The control message should be truncated. - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); - EXPECT_EQ(msg.msg_controllen, sizeof(control)); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, sizeof(control)); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_CREDENTIALS); -} - -// CredPassTruncatedMsgCtrunc passes a full set of credentials. It then receives -// the data while providing enough space for only the first field of the -// credentials and verifies that MSG_CTRUNC is set in the msghdr. -TEST_P(UnixSocketPairTest, CredPassTruncatedMsgCtrunc) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - struct msghdr msg = {}; - char control[CMSG_SPACE(0) + sizeof(pid_t)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[sizeof(sent_data)] = {}; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - // The control message should be truncated. - EXPECT_EQ(msg.msg_flags, MSG_CTRUNC); - EXPECT_EQ(msg.msg_controllen, sizeof(control)); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, sizeof(control)); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_CREDENTIALS); -} - -TEST_P(UnixSocketPairTest, SoPassCred) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - int opt; - socklen_t optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->first_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_FALSE(opt); - - optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->second_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_FALSE(opt); - - SetSoPassCred(sockets->first_fd()); - - optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->first_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_TRUE(opt); - - optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->second_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_FALSE(opt); - - int zero = 0; - EXPECT_THAT(setsockopt(sockets->first_fd(), SOL_SOCKET, SO_PASSCRED, &zero, - sizeof(zero)), - SyscallSucceeds()); - - optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->first_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_FALSE(opt); - - optLen = sizeof(opt); - EXPECT_THAT( - getsockopt(sockets->second_fd(), SOL_SOCKET, SO_PASSCRED, &opt, &optLen), - SyscallSucceeds()); - EXPECT_FALSE(opt); -} - -TEST_P(UnixSocketPairTest, NoDataCredPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct msghdr msg = {}; - - struct iovec iov; - iov.iov_base = sent_data; - iov.iov_len = sizeof(sent_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - char control[CMSG_SPACE(0)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_CREDENTIALS; - cmsg->cmsg_len = CMSG_LEN(0); - - ASSERT_THAT(RetryEINTR(sendmsg)(sockets->first_fd(), &msg, 0), - SyscallFailsWithErrno(EINVAL)); -} - -TEST_P(UnixSocketPairTest, NoPassCred) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - ASSERT_NO_FATAL_FAILURE( - SendCreds(sockets->first_fd(), sent_creds, sent_data, sizeof(sent_data))); - - char received_data[20]; - - ASSERT_NO_FATAL_FAILURE( - RecvNoCmsg(sockets->second_fd(), received_data, sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); -} - -TEST_P(UnixSocketPairTest, CredAndFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - struct ucred sent_creds; - - ASSERT_THAT(sent_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(sent_creds.gid = getgid(), SyscallSucceeds()); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendCredsAndFD(sockets->first_fd(), sent_creds, - pair->second_fd(), sent_data, - sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - struct ucred received_creds; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvCredsAndFD(sockets->second_fd(), &received_creds, - &fd, received_data, - sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - EXPECT_EQ(sent_creds.pid, received_creds.pid); - EXPECT_EQ(sent_creds.uid, received_creds.uid); - EXPECT_EQ(sent_creds.gid, received_creds.gid); - - ASSERT_NO_FATAL_FAILURE(TransferTest(fd, pair->first_fd())); -} - -TEST_P(UnixSocketPairTest, FDPassBeforeSoPassCred) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - SetSoPassCred(sockets->second_fd()); - - char received_data[20]; - struct ucred received_creds; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvCredsAndFD(sockets->second_fd(), &received_creds, - &fd, received_data, - sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds { - 0, 65534, 65534 - }; - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); - - ASSERT_NO_FATAL_FAILURE(TransferTest(fd, pair->first_fd())); -} - -TEST_P(UnixSocketPairTest, FDPassAfterSoPassCred) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - SetSoPassCred(sockets->second_fd()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char received_data[20]; - struct ucred received_creds; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvCredsAndFD(sockets->second_fd(), &received_creds, - &fd, received_data, - sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - struct ucred want_creds; - ASSERT_THAT(want_creds.pid = getpid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.uid = getuid(), SyscallSucceeds()); - ASSERT_THAT(want_creds.gid = getgid(), SyscallSucceeds()); - - EXPECT_EQ(want_creds.pid, received_creds.pid); - EXPECT_EQ(want_creds.uid, received_creds.uid); - EXPECT_EQ(want_creds.gid, received_creds.gid); - - ASSERT_NO_FATAL_FAILURE(TransferTest(fd, pair->first_fd())); -} - -TEST_P(UnixSocketPairTest, CloexecDroppedWhenFDPassed) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = ASSERT_NO_ERRNO_AND_VALUE( - UnixDomainSocketPair(SOCK_SEQPACKET | SOCK_CLOEXEC).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - char received_data[20]; - int fd = -1; - ASSERT_NO_FATAL_FAILURE(RecvSingleFD(sockets->second_fd(), &fd, received_data, - sizeof(received_data))); - - EXPECT_THAT(fcntl(fd, F_GETFD), SyscallSucceedsWithValue(0)); -} - -TEST_P(UnixSocketPairTest, CloexecRecvFDPass) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - char control[CMSG_SPACE(sizeof(int))]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - struct iovec iov; - char received_data[20]; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, MSG_CMSG_CLOEXEC), - SyscallSucceedsWithValue(sizeof(received_data))); - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - ASSERT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(int))); - ASSERT_EQ(cmsg->cmsg_level, SOL_SOCKET); - ASSERT_EQ(cmsg->cmsg_type, SCM_RIGHTS); - - int fd = -1; - memcpy(&fd, CMSG_DATA(cmsg), sizeof(int)); - - EXPECT_THAT(fcntl(fd, F_GETFD), SyscallSucceedsWithValue(FD_CLOEXEC)); -} - -TEST_P(UnixSocketPairTest, FDPassAfterSoPassCredWithoutCredSpace) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - SetSoPassCred(sockets->second_fd()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - char control[CMSG_LEN(0)]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[20]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - - EXPECT_EQ(msg.msg_controllen, sizeof(control)); - - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - EXPECT_EQ(cmsg->cmsg_len, sizeof(control)); - EXPECT_EQ(cmsg->cmsg_level, SOL_SOCKET); - EXPECT_EQ(cmsg->cmsg_type, SCM_CREDENTIALS); -} - -// This test will validate that MSG_CTRUNC as an input flag to recvmsg will -// not appear as an output flag on the control message when truncation doesn't -// happen. -TEST_P(UnixSocketPairTest, MsgCtruncInputIsNoop) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - char control[CMSG_SPACE(sizeof(int)) /* we're passing a single fd */]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - struct iovec iov; - char received_data[20]; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, MSG_CTRUNC), - SyscallSucceedsWithValue(sizeof(received_data))); - struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg); - ASSERT_NE(cmsg, nullptr); - ASSERT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(int))); - ASSERT_EQ(cmsg->cmsg_level, SOL_SOCKET); - ASSERT_EQ(cmsg->cmsg_type, SCM_RIGHTS); - - // Now we should verify that MSG_CTRUNC wasn't set as an output flag. - EXPECT_EQ(msg.msg_flags & MSG_CTRUNC, 0); -} - -TEST_P(UnixSocketPairTest, FDPassAfterSoPassCredWithoutCredHeaderSpace) { - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - char sent_data[20]; - RandomizeBuffer(sent_data, sizeof(sent_data)); - - auto pair = - ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create()); - - SetSoPassCred(sockets->second_fd()); - - ASSERT_NO_FATAL_FAILURE(SendSingleFD(sockets->first_fd(), pair->second_fd(), - sent_data, sizeof(sent_data))); - - struct msghdr msg = {}; - char control[CMSG_LEN(0) / 2]; - msg.msg_control = control; - msg.msg_controllen = sizeof(control); - - char received_data[20]; - struct iovec iov; - iov.iov_base = received_data; - iov.iov_len = sizeof(received_data); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - - ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, 0), - SyscallSucceedsWithValue(sizeof(received_data))); - - EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); - EXPECT_EQ(msg.msg_controllen, 0); -} - TEST_P(UnixSocketPairTest, InvalidGetSockOpt) { auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); int opt; @@ -1519,6 +98,14 @@ TEST_P(UnixSocketPairTest, RecvmmsgTimeoutAfterRecv) { TEST_P(UnixSocketPairTest, TIOCINQSucceeds) { auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + if (IsRunningOnGvisor()) { + // TODO(gvisor.dev/issue/273): Inherited host UDS don't support TIOCINQ. + // Skip the test. + int size = -1; + int ret = ioctl(sockets->first_fd(), TIOCINQ, &size); + SKIP_IF(ret == -1 && errno == ENOTTY); + } + int size = -1; EXPECT_THAT(ioctl(sockets->first_fd(), TIOCINQ, &size), SyscallSucceeds()); EXPECT_EQ(size, 0); @@ -1544,6 +131,14 @@ TEST_P(UnixSocketPairTest, TIOCINQSucceeds) { TEST_P(UnixSocketPairTest, TIOCOUTQSucceeds) { auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + if (IsRunningOnGvisor()) { + // TODO(gvisor.dev/issue/273): Inherited host UDS don't support TIOCOUTQ. + // Skip the test. + int size = -1; + int ret = ioctl(sockets->second_fd(), TIOCOUTQ, &size); + SKIP_IF(ret == -1 && errno == ENOTTY); + } + int size = -1; EXPECT_THAT(ioctl(sockets->second_fd(), TIOCOUTQ, &size), SyscallSucceeds()); EXPECT_EQ(size, 0); @@ -1580,19 +175,70 @@ TEST_P(UnixSocketPairTest, NetdeviceIoctlsSucceed) { } } -TEST_P(UnixSocketPairTest, SocketShutdown) { +TEST_P(UnixSocketPairTest, Shutdown) { auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - char buf[20]; + const std::string data = "abc"; - ASSERT_THAT(WriteFd(sockets->first_fd(), data.c_str(), 3), - SyscallSucceedsWithValue(3)); + ASSERT_THAT(WriteFd(sockets->first_fd(), data.c_str(), data.size()), + SyscallSucceedsWithValue(data.size())); + ASSERT_THAT(shutdown(sockets->first_fd(), SHUT_RDWR), SyscallSucceeds()); ASSERT_THAT(shutdown(sockets->second_fd(), SHUT_RDWR), SyscallSucceeds()); // Shutting down a socket does not clear the buffer. - ASSERT_THAT(ReadFd(sockets->second_fd(), buf, 3), - SyscallSucceedsWithValue(3)); - EXPECT_EQ(data, absl::string_view(buf, 3)); + char buf[3]; + ASSERT_THAT(ReadFd(sockets->second_fd(), buf, data.size()), + SyscallSucceedsWithValue(data.size())); + EXPECT_EQ(data, absl::string_view(buf, data.size())); +} + +TEST_P(UnixSocketPairTest, ShutdownRead) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + ASSERT_THAT(shutdown(sockets->first_fd(), SHUT_RD), SyscallSucceeds()); + + // When the socket is shutdown for read, read behavior varies between + // different socket types. This is covered by the various ReadOneSideClosed + // test cases. + + // ... and the peer cannot write. + const std::string data = "abc"; + EXPECT_THAT(WriteFd(sockets->second_fd(), data.c_str(), data.size()), + SyscallFailsWithErrno(EPIPE)); + + // ... but the socket can still write. + ASSERT_THAT(WriteFd(sockets->first_fd(), data.c_str(), data.size()), + SyscallSucceedsWithValue(data.size())); + + // ... and the peer can still read. + char buf[3]; + EXPECT_THAT(ReadFd(sockets->second_fd(), buf, data.size()), + SyscallSucceedsWithValue(data.size())); + EXPECT_EQ(data, absl::string_view(buf, data.size())); +} + +TEST_P(UnixSocketPairTest, ShutdownWrite) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + ASSERT_THAT(shutdown(sockets->first_fd(), SHUT_WR), SyscallSucceeds()); + + // When the socket is shutdown for write, it cannot write. + const std::string data = "abc"; + EXPECT_THAT(WriteFd(sockets->first_fd(), data.c_str(), data.size()), + SyscallFailsWithErrno(EPIPE)); + + // ... and the peer read behavior varies between different socket types. This + // is covered by the various ReadOneSideClosed test cases. + + // ... but the peer can still write. + char buf[3]; + ASSERT_THAT(WriteFd(sockets->second_fd(), data.c_str(), data.size()), + SyscallSucceedsWithValue(data.size())); + + // ... and the socket can still read. + EXPECT_THAT(ReadFd(sockets->first_fd(), buf, data.size()), + SyscallSucceedsWithValue(data.size())); + EXPECT_EQ(data, absl::string_view(buf, data.size())); } TEST_P(UnixSocketPairTest, SocketReopenFromProcfs) { |