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-rw-r--r--test/syscalls/linux/ioctl.cc406
1 files changed, 0 insertions, 406 deletions
diff --git a/test/syscalls/linux/ioctl.cc b/test/syscalls/linux/ioctl.cc
deleted file mode 100644
index 4948a76f0..000000000
--- a/test/syscalls/linux/ioctl.cc
+++ /dev/null
@@ -1,406 +0,0 @@
-// Copyright 2018 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 <arpa/inet.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <net/if.h>
-#include <netdb.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
-#include "gtest/gtest.h"
-#include "test/syscalls/linux/ip_socket_test_util.h"
-#include "test/syscalls/linux/socket_test_util.h"
-#include "test/syscalls/linux/unix_domain_socket_test_util.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/signal_util.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-bool CheckNonBlocking(int fd) {
- int ret = fcntl(fd, F_GETFL, 0);
- TEST_CHECK(ret != -1);
- return (ret & O_NONBLOCK) == O_NONBLOCK;
-}
-
-bool CheckCloExec(int fd) {
- int ret = fcntl(fd, F_GETFD, 0);
- TEST_CHECK(ret != -1);
- return (ret & FD_CLOEXEC) == FD_CLOEXEC;
-}
-
-class IoctlTest : public ::testing::Test {
- protected:
- void SetUp() override {
- ASSERT_THAT(fd_ = open("/dev/null", O_RDONLY), SyscallSucceeds());
- }
-
- void TearDown() override {
- if (fd_ >= 0) {
- ASSERT_THAT(close(fd_), SyscallSucceeds());
- fd_ = -1;
- }
- }
-
- int fd() const { return fd_; }
-
- private:
- int fd_ = -1;
-};
-
-TEST_F(IoctlTest, BadFileDescriptor) {
- EXPECT_THAT(ioctl(-1 /* fd */, 0), SyscallFailsWithErrno(EBADF));
-}
-
-TEST_F(IoctlTest, InvalidControlNumber) {
- EXPECT_THAT(ioctl(STDOUT_FILENO, 0), SyscallFailsWithErrno(ENOTTY));
-}
-
-TEST_F(IoctlTest, FIONBIOSucceeds) {
- EXPECT_FALSE(CheckNonBlocking(fd()));
- int set = 1;
- EXPECT_THAT(ioctl(fd(), FIONBIO, &set), SyscallSucceeds());
- EXPECT_TRUE(CheckNonBlocking(fd()));
- set = 0;
- EXPECT_THAT(ioctl(fd(), FIONBIO, &set), SyscallSucceeds());
- EXPECT_FALSE(CheckNonBlocking(fd()));
-}
-
-TEST_F(IoctlTest, FIONBIOFails) {
- EXPECT_THAT(ioctl(fd(), FIONBIO, nullptr), SyscallFailsWithErrno(EFAULT));
-}
-
-TEST_F(IoctlTest, FIONCLEXSucceeds) {
- EXPECT_THAT(ioctl(fd(), FIONCLEX), SyscallSucceeds());
- EXPECT_FALSE(CheckCloExec(fd()));
-}
-
-TEST_F(IoctlTest, FIOCLEXSucceeds) {
- EXPECT_THAT(ioctl(fd(), FIOCLEX), SyscallSucceeds());
- EXPECT_TRUE(CheckCloExec(fd()));
-}
-
-TEST_F(IoctlTest, FIOASYNCFails) {
- EXPECT_THAT(ioctl(fd(), FIOASYNC, nullptr), SyscallFailsWithErrno(EFAULT));
-}
-
-TEST_F(IoctlTest, FIOASYNCSucceeds) {
- // Not all FDs support FIOASYNC.
- const FileDescriptor s = ASSERT_NO_ERRNO_AND_VALUE(
- Socket(AF_UNIX, SOCK_SEQPACKET | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
-
- int before = -1;
- ASSERT_THAT(before = fcntl(s.get(), F_GETFL), SyscallSucceeds());
-
- int set = 1;
- EXPECT_THAT(ioctl(s.get(), FIOASYNC, &set), SyscallSucceeds());
-
- int after_set = -1;
- ASSERT_THAT(after_set = fcntl(s.get(), F_GETFL), SyscallSucceeds());
- EXPECT_EQ(after_set, before | O_ASYNC) << "before was " << before;
-
- set = 0;
- EXPECT_THAT(ioctl(s.get(), FIOASYNC, &set), SyscallSucceeds());
-
- ASSERT_THAT(fcntl(s.get(), F_GETFL), SyscallSucceedsWithValue(before));
-}
-
-/* Count of the number of SIGIOs handled. */
-static volatile int io_received = 0;
-
-void inc_io_handler(int sig, siginfo_t* siginfo, void* arg) { io_received++; }
-
-TEST_F(IoctlTest, FIOASYNCNoTarget) {
- auto pair =
- ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create());
-
- // Count SIGIOs received.
- io_received = 0;
- struct sigaction sa;
- sa.sa_sigaction = inc_io_handler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- auto sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- // Actually allow SIGIO delivery.
- auto mask_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGIO));
-
- int set = 1;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
-
- constexpr char kData[] = "abc";
- ASSERT_THAT(WriteFd(pair->first_fd(), kData, sizeof(kData)),
- SyscallSucceedsWithValue(sizeof(kData)));
-
- EXPECT_EQ(io_received, 0);
-}
-
-TEST_F(IoctlTest, FIOASYNCSelfTarget) {
- // FIXME(b/120624367): gVisor erroneously sends SIGIO on close(2), which would
- // kill the test when pair goes out of scope. Temporarily ignore SIGIO so that
- // that the close signal is ignored.
- struct sigaction sa;
- sa.sa_handler = SIG_IGN;
- auto early_sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- auto pair =
- ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create());
-
- // Count SIGIOs received.
- io_received = 0;
- sa.sa_sigaction = inc_io_handler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- auto sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- // Actually allow SIGIO delivery.
- auto mask_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGIO));
-
- int set = 1;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
-
- pid_t pid = getpid();
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid), SyscallSucceeds());
-
- constexpr char kData[] = "abc";
- ASSERT_THAT(WriteFd(pair->first_fd(), kData, sizeof(kData)),
- SyscallSucceedsWithValue(sizeof(kData)));
-
- EXPECT_EQ(io_received, 1);
-}
-
-// Equivalent to FIOASYNCSelfTarget except that FIOSETOWN is called before
-// FIOASYNC.
-TEST_F(IoctlTest, FIOASYNCSelfTarget2) {
- // FIXME(b/120624367): gVisor erroneously sends SIGIO on close(2), which would
- // kill the test when pair goes out of scope. Temporarily ignore SIGIO so that
- // that the close signal is ignored.
- struct sigaction sa;
- sa.sa_handler = SIG_IGN;
- auto early_sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- auto pair =
- ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create());
-
- // Count SIGIOs received.
- io_received = 0;
- sa.sa_sigaction = inc_io_handler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- auto sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- // Actually allow SIGIO delivery.
- auto mask_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGIO));
-
- pid_t pid = getpid();
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid), SyscallSucceeds());
-
- int set = 1;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
-
- constexpr char kData[] = "abc";
- ASSERT_THAT(WriteFd(pair->first_fd(), kData, sizeof(kData)),
- SyscallSucceedsWithValue(sizeof(kData)));
-
- EXPECT_EQ(io_received, 1);
-}
-
-// Check that closing an FD does not result in an event.
-TEST_F(IoctlTest, FIOASYNCSelfTargetClose) {
- // Count SIGIOs received.
- struct sigaction sa;
- io_received = 0;
- sa.sa_sigaction = inc_io_handler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- auto sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- // Actually allow SIGIO delivery.
- auto mask_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGIO));
-
- for (int i = 0; i < 2; i++) {
- auto pair = ASSERT_NO_ERRNO_AND_VALUE(
- UnixDomainSocketPair(SOCK_SEQPACKET).Create());
-
- pid_t pid = getpid();
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid), SyscallSucceeds());
-
- int set = 1;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
- }
-
- // FIXME(b/120624367): gVisor erroneously sends SIGIO on close.
- SKIP_IF(IsRunningOnGvisor());
-
- EXPECT_EQ(io_received, 0);
-}
-
-TEST_F(IoctlTest, FIOASYNCInvalidPID) {
- auto pair =
- ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create());
- int set = 1;
- ASSERT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
- pid_t pid = INT_MAX;
- // This succeeds (with behavior equivalent to a pid of 0) in Linux prior to
- // f73127356f34 "fs/fcntl: return -ESRCH in f_setown when pid/pgid can't be
- // found", and fails with EPERM after that commit.
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid),
- AnyOf(SyscallSucceeds(), SyscallFailsWithErrno(ESRCH)));
-}
-
-TEST_F(IoctlTest, FIOASYNCUnsetTarget) {
- auto pair =
- ASSERT_NO_ERRNO_AND_VALUE(UnixDomainSocketPair(SOCK_SEQPACKET).Create());
-
- // Count SIGIOs received.
- io_received = 0;
- struct sigaction sa;
- sa.sa_sigaction = inc_io_handler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
- auto sa_cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGIO, sa));
-
- // Actually allow SIGIO delivery.
- auto mask_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGIO));
-
- int set = 1;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOASYNC, &set), SyscallSucceeds());
-
- pid_t pid = getpid();
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid), SyscallSucceeds());
-
- // Passing a PID of 0 unsets the target.
- pid = 0;
- EXPECT_THAT(ioctl(pair->second_fd(), FIOSETOWN, &pid), SyscallSucceeds());
-
- constexpr char kData[] = "abc";
- ASSERT_THAT(WriteFd(pair->first_fd(), kData, sizeof(kData)),
- SyscallSucceedsWithValue(sizeof(kData)));
-
- EXPECT_EQ(io_received, 0);
-}
-
-using IoctlTestSIOCGIFCONF = SimpleSocketTest;
-
-TEST_P(IoctlTestSIOCGIFCONF, ValidateNoArrayGetsLength) {
- auto fd = ASSERT_NO_ERRNO_AND_VALUE(NewSocket());
-
- // Validate that no array can be used to get the length required.
- struct ifconf ifconf = {};
- ASSERT_THAT(ioctl(fd->get(), SIOCGIFCONF, &ifconf), SyscallSucceeds());
- ASSERT_GT(ifconf.ifc_len, 0);
-}
-
-// This test validates that we will only return a partial array list and not
-// partial ifrreq structs.
-TEST_P(IoctlTestSIOCGIFCONF, ValidateNoPartialIfrsReturned) {
- auto fd = ASSERT_NO_ERRNO_AND_VALUE(NewSocket());
-
- struct ifreq ifr = {};
- struct ifconf ifconf = {};
- ifconf.ifc_len = sizeof(ifr) - 1; // One byte too few.
- ifconf.ifc_ifcu.ifcu_req = &ifr;
-
- ASSERT_THAT(ioctl(fd->get(), SIOCGIFCONF, &ifconf), SyscallSucceeds());
- ASSERT_EQ(ifconf.ifc_len, 0);
- ASSERT_EQ(ifr.ifr_name[0], '\0'); // Nothing is returned.
-
- ifconf.ifc_len = sizeof(ifreq);
- ASSERT_THAT(ioctl(fd->get(), SIOCGIFCONF, &ifconf), SyscallSucceeds());
- ASSERT_GT(ifconf.ifc_len, 0);
- ASSERT_NE(ifr.ifr_name[0], '\0'); // An interface can now be returned.
-}
-
-TEST_P(IoctlTestSIOCGIFCONF, ValidateLoopbackIsPresent) {
- auto fd = ASSERT_NO_ERRNO_AND_VALUE(NewSocket());
-
- struct ifconf ifconf = {};
- struct ifreq ifr[10] = {}; // Storage for up to 10 interfaces.
-
- ifconf.ifc_req = ifr;
- ifconf.ifc_len = sizeof(ifr);
-
- ASSERT_THAT(ioctl(fd->get(), SIOCGIFCONF, &ifconf), SyscallSucceeds());
- size_t num_if = ifconf.ifc_len / sizeof(struct ifreq);
-
- // We should have at least one interface.
- ASSERT_GE(num_if, 1);
-
- // One of the interfaces should be a loopback.
- bool found_loopback = false;
- for (size_t i = 0; i < num_if; ++i) {
- if (strcmp(ifr[i].ifr_name, "lo") == 0) {
- // SIOCGIFCONF returns the ipv4 address of the interface, let's check it.
- ASSERT_EQ(ifr[i].ifr_addr.sa_family, AF_INET);
-
- // Validate the address is correct for loopback.
- sockaddr_in* sin = reinterpret_cast<sockaddr_in*>(&ifr[i].ifr_addr);
- ASSERT_EQ(htonl(sin->sin_addr.s_addr), INADDR_LOOPBACK);
-
- found_loopback = true;
- break;
- }
- }
- ASSERT_TRUE(found_loopback);
-}
-
-std::vector<SocketKind> IoctlSocketTypes() {
- return {SimpleSocket(AF_UNIX, SOCK_STREAM, 0),
- SimpleSocket(AF_UNIX, SOCK_DGRAM, 0),
- SimpleSocket(AF_INET, SOCK_STREAM, 0),
- SimpleSocket(AF_INET6, SOCK_STREAM, 0),
- SimpleSocket(AF_INET, SOCK_DGRAM, 0),
- SimpleSocket(AF_INET6, SOCK_DGRAM, 0)};
-}
-
-INSTANTIATE_TEST_SUITE_P(IoctlTest, IoctlTestSIOCGIFCONF,
- ::testing::ValuesIn(IoctlSocketTypes()));
-
-} // namespace
-
-TEST_F(IoctlTest, FIOGETOWNSucceeds) {
- const FileDescriptor s = ASSERT_NO_ERRNO_AND_VALUE(
- Socket(AF_UNIX, SOCK_SEQPACKET | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
-
- int get = -1;
- ASSERT_THAT(ioctl(s.get(), FIOGETOWN, &get), SyscallSucceeds());
- EXPECT_EQ(get, 0);
-}
-
-TEST_F(IoctlTest, SIOCGPGRPSucceeds) {
- const FileDescriptor s = ASSERT_NO_ERRNO_AND_VALUE(
- Socket(AF_UNIX, SOCK_SEQPACKET | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
-
- int get = -1;
- ASSERT_THAT(ioctl(s.get(), SIOCGPGRP, &get), SyscallSucceeds());
- EXPECT_EQ(get, 0);
-}
-
-} // namespace testing
-} // namespace gvisor
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