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Diffstat (limited to 'test/syscalls/linux/raw_socket_ipv4.cc')
-rw-r--r--test/syscalls/linux/raw_socket_ipv4.cc392
1 files changed, 0 insertions, 392 deletions
diff --git a/test/syscalls/linux/raw_socket_ipv4.cc b/test/syscalls/linux/raw_socket_ipv4.cc
deleted file mode 100644
index cde2f07c9..000000000
--- a/test/syscalls/linux/raw_socket_ipv4.cc
+++ /dev/null
@@ -1,392 +0,0 @@
-// Copyright 2019 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 <linux/capability.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#include <poll.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <algorithm>
-
-#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/capability_util.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/test_util.h"
-
-// Note: in order to run these tests, /proc/sys/net/ipv4/ping_group_range will
-// need to be configured to let the superuser create ping sockets (see icmp(7)).
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-// Fixture for tests parameterized by protocol.
-class RawSocketTest : public ::testing::TestWithParam<int> {
- protected:
- // Creates a socket to be used in tests.
- void SetUp() override;
-
- // Closes the socket created by SetUp().
- void TearDown() override;
-
- // Sends buf via s_.
- void SendBuf(const char* buf, int buf_len);
-
- // Sends buf to the provided address via the provided socket.
- void SendBufTo(int sock, const struct sockaddr_in& addr, const char* buf,
- int buf_len);
-
- // Reads from s_ into recv_buf.
- void ReceiveBuf(char* recv_buf, size_t recv_buf_len);
-
- int Protocol() { return GetParam(); }
-
- // The socket used for both reading and writing.
- int s_;
-
- // The loopback address.
- struct sockaddr_in addr_;
-};
-
-void RawSocketTest::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
- ASSERT_THAT(socket(AF_INET, SOCK_RAW, Protocol()),
- SyscallFailsWithErrno(EPERM));
- GTEST_SKIP();
- }
-
- ASSERT_THAT(s_ = socket(AF_INET, SOCK_RAW, Protocol()), SyscallSucceeds());
-
- addr_ = {};
-
- // We don't set ports because raw sockets don't have a notion of ports.
- addr_.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- addr_.sin_family = AF_INET;
-}
-
-void RawSocketTest::TearDown() {
- // TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
- EXPECT_THAT(close(s_), SyscallSucceeds());
- }
-}
-
-// We should be able to create multiple raw sockets for the same protocol.
-// BasicRawSocket::Setup creates the first one, so we only have to create one
-// more here.
-TEST_P(RawSocketTest, MultipleCreation) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- int s2;
- ASSERT_THAT(s2 = socket(AF_INET, SOCK_RAW, Protocol()), SyscallSucceeds());
-
- ASSERT_THAT(close(s2), SyscallSucceeds());
-}
-
-// Test that shutting down an unconnected socket fails.
-TEST_P(RawSocketTest, FailShutdownWithoutConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(shutdown(s_, SHUT_WR), SyscallFailsWithErrno(ENOTCONN));
- ASSERT_THAT(shutdown(s_, SHUT_RD), SyscallFailsWithErrno(ENOTCONN));
-}
-
-// Shutdown is a no-op for raw sockets (and datagram sockets in general).
-TEST_P(RawSocketTest, ShutdownWriteNoop) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
- ASSERT_THAT(shutdown(s_, SHUT_WR), SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "noop";
- ASSERT_THAT(RetryEINTR(write)(s_, kBuf, sizeof(kBuf)),
- SyscallSucceedsWithValue(sizeof(kBuf)));
-}
-
-// Shutdown is a no-op for raw sockets (and datagram sockets in general).
-TEST_P(RawSocketTest, ShutdownReadNoop) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
- ASSERT_THAT(shutdown(s_, SHUT_RD), SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "gdg";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- constexpr size_t kReadSize = sizeof(kBuf) + sizeof(struct iphdr);
- char c[kReadSize];
- ASSERT_THAT(read(s_, &c, sizeof(c)), SyscallSucceedsWithValue(kReadSize));
-}
-
-// Test that listen() fails.
-TEST_P(RawSocketTest, FailListen) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(listen(s_, 1), SyscallFailsWithErrno(ENOTSUP));
-}
-
-// Test that accept() fails.
-TEST_P(RawSocketTest, FailAccept) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- struct sockaddr saddr;
- socklen_t addrlen;
- ASSERT_THAT(accept(s_, &saddr, &addrlen), SyscallFailsWithErrno(ENOTSUP));
-}
-
-// Test that getpeername() returns nothing before connect().
-TEST_P(RawSocketTest, FailGetPeerNameBeforeConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- struct sockaddr saddr;
- socklen_t addrlen = sizeof(saddr);
- ASSERT_THAT(getpeername(s_, &saddr, &addrlen),
- SyscallFailsWithErrno(ENOTCONN));
-}
-
-// Test that getpeername() returns something after connect().
-TEST_P(RawSocketTest, GetPeerName) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
- struct sockaddr saddr;
- socklen_t addrlen = sizeof(saddr);
- ASSERT_THAT(getpeername(s_, &saddr, &addrlen),
- SyscallFailsWithErrno(ENOTCONN));
- ASSERT_GT(addrlen, 0);
-}
-
-// Test that the socket is writable immediately.
-TEST_P(RawSocketTest, PollWritableImmediately) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- struct pollfd pfd = {};
- pfd.fd = s_;
- pfd.events = POLLOUT;
- ASSERT_THAT(RetryEINTR(poll)(&pfd, 1, 10000), SyscallSucceedsWithValue(1));
-}
-
-// Test that the socket isn't readable before receiving anything.
-TEST_P(RawSocketTest, PollNotReadableInitially) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- // Try to receive data with MSG_DONTWAIT, which returns immediately if there's
- // nothing to be read.
- char buf[117];
- ASSERT_THAT(RetryEINTR(recv)(s_, buf, sizeof(buf), MSG_DONTWAIT),
- SyscallFailsWithErrno(EAGAIN));
-}
-
-// Test that the socket becomes readable once something is written to it.
-TEST_P(RawSocketTest, PollTriggeredOnWrite) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- // Write something so that there's data to be read.
- // Arbitrary.
- constexpr char kBuf[] = "JP5";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- struct pollfd pfd = {};
- pfd.fd = s_;
- pfd.events = POLLIN;
- ASSERT_THAT(RetryEINTR(poll)(&pfd, 1, 10000), SyscallSucceedsWithValue(1));
-}
-
-// Test that we can connect() to a valid IP (loopback).
-TEST_P(RawSocketTest, ConnectToLoopback) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
-}
-
-// Test that calling send() without connect() fails.
-TEST_P(RawSocketTest, SendWithoutConnectFails) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- // Arbitrary.
- constexpr char kBuf[] = "Endgame was good";
- ASSERT_THAT(send(s_, kBuf, sizeof(kBuf), 0),
- SyscallFailsWithErrno(EDESTADDRREQ));
-}
-
-// Bind to localhost.
-TEST_P(RawSocketTest, BindToLocalhost) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
-}
-
-// Bind to a different address.
-TEST_P(RawSocketTest, BindToInvalid) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- struct sockaddr_in bind_addr = {};
- bind_addr.sin_family = AF_INET;
- bind_addr.sin_addr = {1}; // 1.0.0.0 - An address that we can't bind to.
- ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&bind_addr),
- sizeof(bind_addr)),
- SyscallFailsWithErrno(EADDRNOTAVAIL));
-}
-
-// Send and receive an packet.
-TEST_P(RawSocketTest, SendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- // Arbitrary.
- constexpr char kBuf[] = "TB12";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- // Receive the packet and make sure it's identical.
- char recv_buf[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf, sizeof(recv_buf)));
- EXPECT_EQ(memcmp(recv_buf + sizeof(struct iphdr), kBuf, sizeof(kBuf)), 0);
-}
-
-// We should be able to create multiple raw sockets for the same protocol and
-// receive the same packet on both.
-TEST_P(RawSocketTest, MultipleSocketReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- int s2;
- ASSERT_THAT(s2 = socket(AF_INET, SOCK_RAW, Protocol()), SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "TB10";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- // Receive it on socket 1.
- char recv_buf1[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf1, sizeof(recv_buf1)));
-
- // Receive it on socket 2.
- char recv_buf2[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(RecvNoCmsg(s2, recv_buf2, sizeof(recv_buf2)));
-
- EXPECT_EQ(memcmp(recv_buf1 + sizeof(struct iphdr),
- recv_buf2 + sizeof(struct iphdr), sizeof(kBuf)),
- 0);
-
- ASSERT_THAT(close(s2), SyscallSucceeds());
-}
-
-// Test that connect sends packets to the right place.
-TEST_P(RawSocketTest, SendAndReceiveViaConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "JH4";
- ASSERT_THAT(send(s_, kBuf, sizeof(kBuf), 0),
- SyscallSucceedsWithValue(sizeof(kBuf)));
-
- // Receive the packet and make sure it's identical.
- char recv_buf[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf, sizeof(recv_buf)));
- EXPECT_EQ(memcmp(recv_buf + sizeof(struct iphdr), kBuf, sizeof(kBuf)), 0);
-}
-
-// Bind to localhost, then send and receive packets.
-TEST_P(RawSocketTest, BindSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "DR16";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- // Receive the packet and make sure it's identical.
- char recv_buf[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf, sizeof(recv_buf)));
- EXPECT_EQ(memcmp(recv_buf + sizeof(struct iphdr), kBuf, sizeof(kBuf)), 0);
-}
-
-// Bind and connect to localhost and send/receive packets.
-TEST_P(RawSocketTest, BindConnectSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
- ASSERT_THAT(
- connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
- SyscallSucceeds());
-
- // Arbitrary.
- constexpr char kBuf[] = "DG88";
- ASSERT_NO_FATAL_FAILURE(SendBuf(kBuf, sizeof(kBuf)));
-
- // Receive the packet and make sure it's identical.
- char recv_buf[sizeof(kBuf) + sizeof(struct iphdr)];
- ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf, sizeof(recv_buf)));
- EXPECT_EQ(memcmp(recv_buf + sizeof(struct iphdr), kBuf, sizeof(kBuf)), 0);
-}
-
-void RawSocketTest::SendBuf(const char* buf, int buf_len) {
- ASSERT_NO_FATAL_FAILURE(SendBufTo(s_, addr_, buf, buf_len));
-}
-
-void RawSocketTest::SendBufTo(int sock, const struct sockaddr_in& addr,
- const char* buf, int buf_len) {
- // It's safe to use const_cast here because sendmsg won't modify the iovec or
- // address.
- struct iovec iov = {};
- iov.iov_base = static_cast<void*>(const_cast<char*>(buf));
- iov.iov_len = static_cast<size_t>(buf_len);
- struct msghdr msg = {};
- msg.msg_name = static_cast<void*>(const_cast<struct sockaddr_in*>(&addr));
- msg.msg_namelen = sizeof(addr);
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_flags = 0;
- ASSERT_THAT(sendmsg(sock, &msg, 0), SyscallSucceedsWithValue(buf_len));
-}
-
-void RawSocketTest::ReceiveBuf(char* recv_buf, size_t recv_buf_len) {
- ASSERT_NO_FATAL_FAILURE(RecvNoCmsg(s_, recv_buf, recv_buf_len));
-}
-
-INSTANTIATE_TEST_SUITE_P(AllInetTests, RawSocketTest,
- ::testing::Values(IPPROTO_TCP, IPPROTO_UDP));
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor