diff options
Diffstat (limited to 'test/syscalls/linux')
78 files changed, 1586 insertions, 554 deletions
diff --git a/test/syscalls/linux/32bit.cc b/test/syscalls/linux/32bit.cc index a7cbee06b..2751fb4e7 100644 --- a/test/syscalls/linux/32bit.cc +++ b/test/syscalls/linux/32bit.cc @@ -15,10 +15,12 @@ #include <string.h> #include <sys/mman.h> +#include "gtest/gtest.h" +#include "absl/base/macros.h" #include "test/util/memory_util.h" +#include "test/util/platform_util.h" #include "test/util/posix_error.h" #include "test/util/test_util.h" -#include "gtest/gtest.h" #ifndef __x86_64__ #error "This test is x86-64 specific." @@ -30,7 +32,6 @@ namespace testing { namespace { constexpr char kInt3 = '\xcc'; - constexpr char kInt80[2] = {'\xcd', '\x80'}; constexpr char kSyscall[2] = {'\x0f', '\x05'}; constexpr char kSysenter[2] = {'\x0f', '\x34'}; @@ -43,6 +44,7 @@ void ExitGroup32(const char instruction[2], int code) { // Fill with INT 3 in case we execute too far. memset(m.ptr(), kInt3, m.len()); + // Copy in the actual instruction. memcpy(m.ptr(), instruction, 2); // We're playing *extremely* fast-and-loose with the various syscall ABIs @@ -71,77 +73,94 @@ void ExitGroup32(const char instruction[2], int code) { "iretl\n" "int $3\n" : - : [code] "m"(code), [ip] "d"(m.ptr()) + : [ code ] "m"(code), [ ip ] "d"(m.ptr()) : "rax", "rbx", "rsp"); } constexpr int kExitCode = 42; TEST(Syscall32Bit, Int80) { - switch (GvisorPlatform()) { - case Platform::kKVM: - // TODO(b/111805002): 32-bit segments are broken (but not explictly - // disabled). - return; - case Platform::kPtrace: - // TODO(gvisor.dev/issue/167): The ptrace platform does not have a - // consistent story here. - return; - case Platform::kNative: + switch (PlatformSupport32Bit()) { + case PlatformSupport::NotSupported: + break; + case PlatformSupport::Segfault: + EXPECT_EXIT(ExitGroup32(kInt80, kExitCode), + ::testing::KilledBySignal(SIGSEGV), ""); break; - } - // Upstream Linux. 32-bit syscalls allowed. - EXPECT_EXIT(ExitGroup32(kInt80, kExitCode), ::testing::ExitedWithCode(42), - ""); -} + case PlatformSupport::Ignored: + // Since the call is ignored, we'll hit the int3 trap. + EXPECT_EXIT(ExitGroup32(kInt80, kExitCode), + ::testing::KilledBySignal(SIGTRAP), ""); + break; -TEST(Syscall32Bit, Sysenter) { - switch (GvisorPlatform()) { - case Platform::kKVM: - // TODO(b/111805002): See above. - return; - case Platform::kPtrace: - // TODO(gvisor.dev/issue/167): See above. - return; - case Platform::kNative: + case PlatformSupport::Allowed: + EXPECT_EXIT(ExitGroup32(kInt80, kExitCode), ::testing::ExitedWithCode(42), + ""); break; } +} - if (GetCPUVendor() == CPUVendor::kAMD) { +TEST(Syscall32Bit, Sysenter) { + if (PlatformSupport32Bit() == PlatformSupport::Allowed && + GetCPUVendor() == CPUVendor::kAMD) { // SYSENTER is an illegal instruction in compatibility mode on AMD. EXPECT_EXIT(ExitGroup32(kSysenter, kExitCode), ::testing::KilledBySignal(SIGILL), ""); return; } - // Upstream Linux on !AMD, 32-bit syscalls allowed. - EXPECT_EXIT(ExitGroup32(kSysenter, kExitCode), ::testing::ExitedWithCode(42), - ""); -} + switch (PlatformSupport32Bit()) { + case PlatformSupport::NotSupported: + break; -TEST(Syscall32Bit, Syscall) { - switch (GvisorPlatform()) { - case Platform::kKVM: - // TODO(b/111805002): See above. - return; - case Platform::kPtrace: - // TODO(gvisor.dev/issue/167): See above. - return; - case Platform::kNative: + case PlatformSupport::Segfault: + EXPECT_EXIT(ExitGroup32(kSysenter, kExitCode), + ::testing::KilledBySignal(SIGSEGV), ""); + break; + + case PlatformSupport::Ignored: + // See above, except expected code is SIGSEGV. + EXPECT_EXIT(ExitGroup32(kSysenter, kExitCode), + ::testing::KilledBySignal(SIGSEGV), ""); + break; + + case PlatformSupport::Allowed: + EXPECT_EXIT(ExitGroup32(kSysenter, kExitCode), + ::testing::ExitedWithCode(42), ""); break; } +} - if (GetCPUVendor() == CPUVendor::kIntel) { +TEST(Syscall32Bit, Syscall) { + if (PlatformSupport32Bit() == PlatformSupport::Allowed && + GetCPUVendor() == CPUVendor::kIntel) { // SYSCALL is an illegal instruction in compatibility mode on Intel. EXPECT_EXIT(ExitGroup32(kSyscall, kExitCode), ::testing::KilledBySignal(SIGILL), ""); return; } - // Upstream Linux on !Intel, 32-bit syscalls allowed. - EXPECT_EXIT(ExitGroup32(kSyscall, kExitCode), ::testing::ExitedWithCode(42), - ""); + switch (PlatformSupport32Bit()) { + case PlatformSupport::NotSupported: + break; + + case PlatformSupport::Segfault: + EXPECT_EXIT(ExitGroup32(kSyscall, kExitCode), + ::testing::KilledBySignal(SIGSEGV), ""); + break; + + case PlatformSupport::Ignored: + // See above. + EXPECT_EXIT(ExitGroup32(kSyscall, kExitCode), + ::testing::KilledBySignal(SIGILL), ""); + break; + + case PlatformSupport::Allowed: + EXPECT_EXIT(ExitGroup32(kSyscall, kExitCode), + ::testing::ExitedWithCode(42), ""); + break; + } } // Far call code called below. @@ -205,19 +224,20 @@ void FarCall32() { } TEST(Call32Bit, Disallowed) { - switch (GvisorPlatform()) { - case Platform::kKVM: - // TODO(b/111805002): See above. - return; - case Platform::kPtrace: - // The ptrace platform cannot prevent switching to compatibility mode. - ABSL_FALLTHROUGH_INTENDED; - case Platform::kNative: + switch (PlatformSupport32Bit()) { + case PlatformSupport::NotSupported: break; - } - // Shouldn't crash. - FarCall32(); + case PlatformSupport::Segfault: + EXPECT_EXIT(FarCall32(), ::testing::KilledBySignal(SIGSEGV), ""); + break; + + case PlatformSupport::Ignored: + ABSL_FALLTHROUGH_INTENDED; + case PlatformSupport::Allowed: + // Shouldn't crash. + FarCall32(); + } } } // namespace diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD index 68dcc598b..ee7a8a673 100644 --- a/test/syscalls/linux/BUILD +++ b/test/syscalls/linux/BUILD @@ -1,5 +1,4 @@ -load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library") -load("//test/syscalls:build_defs.bzl", "select_for_linux") +load("//tools:defs.bzl", "cc_binary", "cc_library", "default_net_util", "select_arch", "select_system") package( default_visibility = ["//:sandbox"], @@ -19,16 +18,6 @@ exports_files( visibility = ["//:sandbox"], ) -config_setting( - name = "x86_64", - constraint_values = ["@bazel_tools//platforms:x86_64"], -) - -config_setting( - name = "aarch64", - constraint_values = ["@bazel_tools//platforms:aarch64"], -) - cc_binary( name = "sigaltstack_check", testonly = 1, @@ -136,13 +125,11 @@ cc_library( testonly = 1, srcs = [ "socket_test_util.cc", - ] + select_for_linux( - [ - "socket_test_util_impl.cc", - ], - ), + "socket_test_util_impl.cc", + ], hdrs = ["socket_test_util.h"], - deps = [ + defines = select_system(), + deps = default_net_util() + [ "@com_google_googletest//:gtest", "@com_google_absl//absl/memory", "@com_google_absl//absl/strings", @@ -153,8 +140,7 @@ cc_library( "//test/util:temp_path", "//test/util:test_util", "//test/util:thread_util", - ] + select_for_linux([ - ]), + ], ) cc_library( @@ -207,16 +193,18 @@ cc_binary( cc_binary( name = "32bit_test", testonly = 1, - srcs = select({ - ":x86_64": ["32bit.cc"], - ":aarch64": [], - }), + srcs = select_arch( + amd64 = ["32bit.cc"], + arm64 = [], + ), linkstatic = 1, deps = [ "//test/util:memory_util", + "//test/util:platform_util", "//test/util:posix_error", "//test/util:test_main", "//test/util:test_util", + "@com_google_absl//absl/base:core_headers", "@com_google_googletest//:gtest", ], ) @@ -496,6 +484,7 @@ cc_binary( srcs = ["concurrency.cc"], linkstatic = 1, deps = [ + "//test/util:platform_util", "//test/util:test_main", "//test/util:test_util", "//test/util:thread_util", @@ -597,13 +586,11 @@ cc_binary( cc_binary( name = "exceptions_test", testonly = 1, - srcs = select({ - ":x86_64": ["exceptions.cc"], - ":aarch64": [], - }), + srcs = ["exceptions.cc"], linkstatic = 1, deps = [ "//test/util:logging", + "//test/util:platform_util", "//test/util:signal_util", "//test/util:test_main", "//test/util:test_util", @@ -656,10 +643,10 @@ cc_binary( cc_binary( name = "exec_binary_test", testonly = 1, - srcs = select({ - ":x86_64": ["exec_binary.cc"], - ":aarch64": [], - }), + srcs = select_arch( + amd64 = ["exec_binary.cc"], + arm64 = [], + ), linkstatic = 1, deps = [ "//test/util:cleanup", @@ -773,6 +760,7 @@ cc_binary( ":socket_test_util", "//test/util:cleanup", "//test/util:eventfd_util", + "//test/util:fs_util", "//test/util:multiprocess_util", "//test/util:posix_error", "//test/util:save_util", @@ -830,10 +818,10 @@ cc_binary( cc_binary( name = "fpsig_fork_test", testonly = 1, - srcs = select({ - ":x86_64": ["fpsig_fork.cc"], - ":aarch64": [], - }), + srcs = select_arch( + amd64 = ["fpsig_fork.cc"], + arm64 = [], + ), linkstatic = 1, deps = [ "//test/util:logging", @@ -847,10 +835,10 @@ cc_binary( cc_binary( name = "fpsig_nested_test", testonly = 1, - srcs = select({ - ":x86_64": ["fpsig_nested.cc"], - ":aarch64": [], - }), + srcs = select_arch( + amd64 = ["fpsig_nested.cc"], + arm64 = [], + ), linkstatic = 1, deps = [ "//test/util:test_main", @@ -1416,6 +1404,7 @@ cc_binary( linkstatic = 1, deps = [ "//test/util:file_descriptor", + "//test/util:fs_util", "//test/util:posix_error", "//test/util:temp_path", "//test/util:test_main", @@ -1465,12 +1454,10 @@ cc_binary( cc_binary( name = "arch_prctl_test", testonly = 1, - srcs = select({ - ":x86_64": ["arch_prctl.cc"], - ":aarch64": [], - }), + srcs = ["arch_prctl.cc"], linkstatic = 1, deps = [ + "//test/util:file_descriptor", "//test/util:test_main", "//test/util:test_util", "@com_google_googletest//:gtest", @@ -1689,6 +1676,7 @@ cc_binary( deps = [ "//test/util:logging", "//test/util:multiprocess_util", + "//test/util:platform_util", "//test/util:signal_util", "//test/util:test_util", "//test/util:thread_util", @@ -2063,21 +2051,21 @@ cc_binary( cc_binary( name = "sigiret_test", testonly = 1, - srcs = select({ - ":x86_64": ["sigiret.cc"], - ":aarch64": [], - }), + srcs = select_arch( + amd64 = ["sigiret.cc"], + arm64 = [], + ), linkstatic = 1, deps = [ + "@com_google_googletest//:gtest", "//test/util:logging", "//test/util:signal_util", "//test/util:test_util", "//test/util:timer_util", - "@com_google_googletest//:gtest", - ] + select({ - ":x86_64": [], - ":aarch64": ["//test/util:test_main"], - }), + ] + select_arch( + amd64 = [], + arm64 = ["//test/util:test_main"], + ), ) cc_binary( @@ -2205,6 +2193,7 @@ cc_library( ":socket_test_util", "//test/util:test_util", "//test/util:thread_util", + "@com_google_absl//absl/memory", "@com_google_absl//absl/time", "@com_google_googletest//:gtest", ], @@ -2727,6 +2716,7 @@ cc_binary( srcs = ["socket_inet_loopback.cc"], linkstatic = 1, deps = [ + ":ip_socket_test_util", ":socket_test_util", "//test/util:file_descriptor", "//test/util:posix_error", @@ -2922,7 +2912,6 @@ cc_library( ":unix_domain_socket_test_util", "//test/util:test_util", "//test/util:thread_util", - "//test/util:timer_util", "@com_google_absl//absl/time", "@com_google_googletest//:gtest", ], @@ -3294,10 +3283,7 @@ cc_binary( cc_binary( name = "sysret_test", testonly = 1, - srcs = select({ - ":x86_64": ["sysret.cc"], - ":aarch64": [], - }), + srcs = ["sysret.cc"], linkstatic = 1, deps = [ "//test/util:logging", @@ -3420,11 +3406,11 @@ cc_library( name = "udp_socket_test_cases", testonly = 1, srcs = [ - "udp_socket_test_cases.cc", - ] + select_for_linux([ "udp_socket_errqueue_test_case.cc", - ]), + "udp_socket_test_cases.cc", + ], hdrs = ["udp_socket_test_cases.h"], + defines = select_system(), deps = [ ":socket_test_util", ":unix_domain_socket_test_util", diff --git a/test/syscalls/linux/bad.cc b/test/syscalls/linux/bad.cc index 9e4d8ea57..adfb149df 100644 --- a/test/syscalls/linux/bad.cc +++ b/test/syscalls/linux/bad.cc @@ -22,13 +22,18 @@ namespace gvisor { namespace testing { namespace { -#if defined(__x86_64__) +#ifdef __x86_64__ +// get_kernel_syms is not supported in Linux > 2.6, and not implemented in +// gVisor. +constexpr uint32_t kNotImplementedSyscall = SYS_get_kernel_syms; +#elif __aarch64__ +// Use the last of arch_specific_syscalls which are not implemented on arm64. +constexpr uint32_t kNotImplementedSyscall = SYS_arch_specific_syscall + 15; +#endif + TEST(BadSyscallTest, NotImplemented) { - // get_kernel_syms is not supported in Linux > 2.6, and not implemented in - // gVisor. - EXPECT_THAT(syscall(SYS_get_kernel_syms), SyscallFailsWithErrno(ENOSYS)); + EXPECT_THAT(syscall(kNotImplementedSyscall), SyscallFailsWithErrno(ENOSYS)); } -#endif // defined(__x86_64__) TEST(BadSyscallTest, NegativeOne) { EXPECT_THAT(syscall(-1), SyscallFailsWithErrno(ENOSYS)); diff --git a/test/syscalls/linux/concurrency.cc b/test/syscalls/linux/concurrency.cc index 00b96b34a..f41f99900 100644 --- a/test/syscalls/linux/concurrency.cc +++ b/test/syscalls/linux/concurrency.cc @@ -20,6 +20,7 @@ #include "absl/strings/string_view.h" #include "absl/time/clock.h" #include "absl/time/time.h" +#include "test/util/platform_util.h" #include "test/util/test_util.h" #include "test/util/thread_util.h" @@ -99,6 +100,7 @@ TEST(ConcurrencyTest, MultiProcessMultithreaded) { // Test that multiple processes can execute concurrently, even if one process // never yields. TEST(ConcurrencyTest, MultiProcessConcurrency) { + SKIP_IF(PlatformSupportMultiProcess() == PlatformSupport::NotSupported); pid_t child_pid = fork(); if (child_pid == 0) { diff --git a/test/syscalls/linux/connect_external.cc b/test/syscalls/linux/connect_external.cc index bfe1da82e..1edb50e47 100644 --- a/test/syscalls/linux/connect_external.cc +++ b/test/syscalls/linux/connect_external.cc @@ -56,7 +56,7 @@ TEST_P(GoferStreamSeqpacketTest, Echo) { ProtocolSocket proto; std::tie(env, proto) = GetParam(); - char *val = getenv(env.c_str()); + char* val = getenv(env.c_str()); ASSERT_NE(val, nullptr); std::string root(val); @@ -69,7 +69,7 @@ TEST_P(GoferStreamSeqpacketTest, Echo) { addr.sun_family = AF_UNIX; memcpy(addr.sun_path, socket_path.c_str(), socket_path.length()); - ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr *>(&addr), + ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr)), SyscallSucceeds()); @@ -92,7 +92,7 @@ TEST_P(GoferStreamSeqpacketTest, NonListening) { ProtocolSocket proto; std::tie(env, proto) = GetParam(); - char *val = getenv(env.c_str()); + char* val = getenv(env.c_str()); ASSERT_NE(val, nullptr); std::string root(val); @@ -105,7 +105,7 @@ TEST_P(GoferStreamSeqpacketTest, NonListening) { addr.sun_family = AF_UNIX; memcpy(addr.sun_path, socket_path.c_str(), socket_path.length()); - ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr *>(&addr), + ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr)), SyscallFailsWithErrno(ECONNREFUSED)); } @@ -127,7 +127,7 @@ using GoferDgramTest = ::testing::TestWithParam<std::string>; // unnamed. The server thus has no way to reply to us. TEST_P(GoferDgramTest, Null) { std::string env = GetParam(); - char *val = getenv(env.c_str()); + char* val = getenv(env.c_str()); ASSERT_NE(val, nullptr); std::string root(val); @@ -140,7 +140,7 @@ TEST_P(GoferDgramTest, Null) { addr.sun_family = AF_UNIX; memcpy(addr.sun_path, socket_path.c_str(), socket_path.length()); - ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr *>(&addr), + ASSERT_THAT(connect(sock.get(), reinterpret_cast<struct sockaddr*>(&addr), sizeof(addr)), SyscallSucceeds()); diff --git a/test/syscalls/linux/eventfd.cc b/test/syscalls/linux/eventfd.cc index 367682c3d..927001eee 100644 --- a/test/syscalls/linux/eventfd.cc +++ b/test/syscalls/linux/eventfd.cc @@ -132,6 +132,31 @@ TEST(EventfdTest, BigWriteBigRead) { EXPECT_EQ(l[0], 1); } +TEST(EventfdTest, SpliceFromPipePartialSucceeds) { + int pipes[2]; + ASSERT_THAT(pipe2(pipes, O_NONBLOCK), SyscallSucceeds()); + const FileDescriptor pipe_rfd(pipes[0]); + const FileDescriptor pipe_wfd(pipes[1]); + constexpr uint64_t kVal{1}; + + FileDescriptor efd = ASSERT_NO_ERRNO_AND_VALUE(NewEventFD(0, EFD_NONBLOCK)); + + uint64_t event_array[2]; + event_array[0] = kVal; + event_array[1] = kVal; + ASSERT_THAT(write(pipe_wfd.get(), event_array, sizeof(event_array)), + SyscallSucceedsWithValue(sizeof(event_array))); + EXPECT_THAT(splice(pipe_rfd.get(), /*__offin=*/nullptr, efd.get(), + /*__offout=*/nullptr, sizeof(event_array[0]) + 1, + SPLICE_F_NONBLOCK), + SyscallSucceedsWithValue(sizeof(event_array[0]))); + + uint64_t val; + ASSERT_THAT(read(efd.get(), &val, sizeof(val)), + SyscallSucceedsWithValue(sizeof(val))); + EXPECT_EQ(val, kVal); +} + // NotifyNonZero is inherently racy, so random save is disabled. TEST(EventfdTest, NotifyNonZero_NoRandomSave) { // Waits will time out at 10 seconds. diff --git a/test/syscalls/linux/exceptions.cc b/test/syscalls/linux/exceptions.cc index 3d564e720..420b9543f 100644 --- a/test/syscalls/linux/exceptions.cc +++ b/test/syscalls/linux/exceptions.cc @@ -16,6 +16,7 @@ #include "gtest/gtest.h" #include "test/util/logging.h" +#include "test/util/platform_util.h" #include "test/util/signal_util.h" #include "test/util/test_util.h" @@ -324,6 +325,7 @@ TEST(ExceptionTest, AlignmentHalt) { } TEST(ExceptionTest, AlignmentCheck) { + SKIP_IF(PlatformSupportAlignmentCheck() != PlatformSupport::Allowed); // See above. struct sigaction sa = {}; diff --git a/test/syscalls/linux/fault.cc b/test/syscalls/linux/fault.cc index f6e19026f..a85750382 100644 --- a/test/syscalls/linux/fault.cc +++ b/test/syscalls/linux/fault.cc @@ -37,6 +37,9 @@ int GetPcFromUcontext(ucontext_t* uc, uintptr_t* pc) { #elif defined(__i386__) *pc = uc->uc_mcontext.gregs[REG_EIP]; return 1; +#elif defined(__aarch64__) + *pc = uc->uc_mcontext.pc; + return 1; #else return 0; #endif diff --git a/test/syscalls/linux/fcntl.cc b/test/syscalls/linux/fcntl.cc index 4f3aa81d6..421c15b87 100644 --- a/test/syscalls/linux/fcntl.cc +++ b/test/syscalls/linux/fcntl.cc @@ -31,6 +31,7 @@ #include "test/syscalls/linux/socket_test_util.h" #include "test/util/cleanup.h" #include "test/util/eventfd_util.h" +#include "test/util/fs_util.h" #include "test/util/multiprocess_util.h" #include "test/util/posix_error.h" #include "test/util/save_util.h" @@ -55,10 +56,6 @@ ABSL_FLAG(int32_t, socket_fd, -1, namespace gvisor { namespace testing { -// O_LARGEFILE as defined by Linux. glibc tries to be clever by setting it to 0 -// because "it isn't needed", even though Linux can return it via F_GETFL. -constexpr int kOLargeFile = 00100000; - class FcntlLockTest : public ::testing::Test { public: void SetUp() override { diff --git a/test/syscalls/linux/fpsig_fork.cc b/test/syscalls/linux/fpsig_fork.cc index e7e9f06a1..a346f1f00 100644 --- a/test/syscalls/linux/fpsig_fork.cc +++ b/test/syscalls/linux/fpsig_fork.cc @@ -76,8 +76,8 @@ TEST(FPSigTest, Fork) { "movl %[sig], %%edx;" "syscall;" : - : [killnr] "i"(__NR_tgkill), [parent] "rm"(parent), - [tid] "rm"(parent_tid), [sig] "i"(SIGUSR1) + : [ killnr ] "i"(__NR_tgkill), [ parent ] "rm"(parent), + [ tid ] "rm"(parent_tid), [ sig ] "i"(SIGUSR1) : "rax", "rdi", "rsi", "rdx", // Clobbered by syscall. "rcx", "r11"); diff --git a/test/syscalls/linux/fpsig_nested.cc b/test/syscalls/linux/fpsig_nested.cc index 395463aed..c476a8e7a 100644 --- a/test/syscalls/linux/fpsig_nested.cc +++ b/test/syscalls/linux/fpsig_nested.cc @@ -61,8 +61,8 @@ void sigusr1(int s, siginfo_t* siginfo, void* _uc) { "movl %[sig], %%edx;" "syscall;" : - : [killnr] "i"(__NR_tgkill), [pid] "rm"(pid), [tid] "rm"(tid), - [sig] "i"(SIGUSR2) + : [ killnr ] "i"(__NR_tgkill), [ pid ] "rm"(pid), [ tid ] "rm"(tid), + [ sig ] "i"(SIGUSR2) : "rax", "rdi", "rsi", "rdx", // Clobbered by syscall. "rcx", "r11"); @@ -107,8 +107,8 @@ TEST(FPSigTest, NestedSignals) { "movl %[sig], %%edx;" "syscall;" : - : [killnr] "i"(__NR_tgkill), [pid] "rm"(pid), [tid] "rm"(tid), - [sig] "i"(SIGUSR1) + : [ killnr ] "i"(__NR_tgkill), [ pid ] "rm"(pid), [ tid ] "rm"(tid), + [ sig ] "i"(SIGUSR1) : "rax", "rdi", "rsi", "rdx", // Clobbered by syscall. "rcx", "r11"); diff --git a/test/syscalls/linux/getdents.cc b/test/syscalls/linux/getdents.cc index bfd18d4ff..b147d6181 100644 --- a/test/syscalls/linux/getdents.cc +++ b/test/syscalls/linux/getdents.cc @@ -228,6 +228,8 @@ class GetdentsTest : public ::testing::Test { // Multiple template parameters are not allowed, so we must use explicit // template specialization to set the syscall number. + +// SYS_getdents isn't defined on arm64. #ifdef __x86_64__ template <> int GetdentsTest<struct linux_dirent>::SyscallNum() { @@ -246,8 +248,7 @@ typedef ::testing::Types<struct linux_dirent, struct linux_dirent64> GetdentsTypes; #elif __aarch64__ // Test only getdents64 on arm64. -typedef ::testing::Types<struct linux_dirent64> - GetdentsTypes; +typedef ::testing::Types<struct linux_dirent64> GetdentsTypes; #endif TYPED_TEST_SUITE(GetdentsTest, GetdentsTypes); diff --git a/test/syscalls/linux/getrusage.cc b/test/syscalls/linux/getrusage.cc index 9bdb1e4cd..0e51d42a8 100644 --- a/test/syscalls/linux/getrusage.cc +++ b/test/syscalls/linux/getrusage.cc @@ -67,7 +67,7 @@ TEST(GetrusageTest, Grandchild) { pid = fork(); if (pid == 0) { int flags = MAP_ANONYMOUS | MAP_POPULATE | MAP_PRIVATE; - void *addr = + void* addr = mmap(nullptr, kGrandchildSizeKb * 1024, PROT_WRITE, flags, -1, 0); TEST_PCHECK(addr != MAP_FAILED); } else { diff --git a/test/syscalls/linux/inotify.cc b/test/syscalls/linux/inotify.cc index 7384c27dc..fdef646eb 100644 --- a/test/syscalls/linux/inotify.cc +++ b/test/syscalls/linux/inotify.cc @@ -977,7 +977,7 @@ TEST(Inotify, WatchOnRelativePath) { ASSERT_NO_ERRNO_AND_VALUE(Open(file1.path(), O_RDONLY)); // Change working directory to root. - const char* old_working_dir = get_current_dir_name(); + const FileDescriptor cwd = ASSERT_NO_ERRNO_AND_VALUE(Open(".", O_PATH)); EXPECT_THAT(chdir(root.path().c_str()), SyscallSucceeds()); // Add a watch on file1 with a relative path. @@ -997,7 +997,7 @@ TEST(Inotify, WatchOnRelativePath) { // continue to hold a reference, random save/restore tests can fail if a save // is triggered after "root" is unlinked; we can't save deleted fs objects // with active references. - EXPECT_THAT(chdir(old_working_dir), SyscallSucceeds()); + EXPECT_THAT(fchdir(cwd.get()), SyscallSucceeds()); } TEST(Inotify, ZeroLengthReadWriteDoesNotGenerateEvent) { @@ -1591,6 +1591,34 @@ TEST(Inotify, EpollNoDeadlock) { } } +TEST(Inotify, SpliceEvent) { + int pipes[2]; + ASSERT_THAT(pipe2(pipes, O_NONBLOCK), SyscallSucceeds()); + + const TempPath root = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir()); + const FileDescriptor fd = + ASSERT_NO_ERRNO_AND_VALUE(InotifyInit1(IN_NONBLOCK)); + const TempPath file1 = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileWith( + root.path(), "some content", TempPath::kDefaultFileMode)); + + const FileDescriptor file1_fd = + ASSERT_NO_ERRNO_AND_VALUE(Open(file1.path(), O_RDONLY)); + const int watcher = ASSERT_NO_ERRNO_AND_VALUE( + InotifyAddWatch(fd.get(), file1.path(), IN_ALL_EVENTS)); + + char buf; + EXPECT_THAT(read(file1_fd.get(), &buf, 1), SyscallSucceeds()); + + EXPECT_THAT(splice(fd.get(), nullptr, pipes[1], nullptr, + sizeof(struct inotify_event) + 1, SPLICE_F_NONBLOCK), + SyscallSucceedsWithValue(sizeof(struct inotify_event))); + + const FileDescriptor read_fd(pipes[0]); + const std::vector<Event> events = + ASSERT_NO_ERRNO_AND_VALUE(DrainEvents(read_fd.get())); + ASSERT_THAT(events, Are({Event(IN_ACCESS, watcher)})); +} + } // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/ip_socket_test_util.cc b/test/syscalls/linux/ip_socket_test_util.cc index 8398fc95f..6b472eb2f 100644 --- a/test/syscalls/linux/ip_socket_test_util.cc +++ b/test/syscalls/linux/ip_socket_test_util.cc @@ -187,24 +187,24 @@ PosixErrorOr<int> IfAddrHelper::GetIndex(std::string name) { return InterfaceIndex(name); } -std::string GetAddr4Str(in_addr* a) { +std::string GetAddr4Str(const in_addr* a) { char str[INET_ADDRSTRLEN]; inet_ntop(AF_INET, a, str, sizeof(str)); return std::string(str); } -std::string GetAddr6Str(in6_addr* a) { +std::string GetAddr6Str(const in6_addr* a) { char str[INET6_ADDRSTRLEN]; inet_ntop(AF_INET6, a, str, sizeof(str)); return std::string(str); } -std::string GetAddrStr(sockaddr* a) { +std::string GetAddrStr(const sockaddr* a) { if (a->sa_family == AF_INET) { - auto src = &(reinterpret_cast<sockaddr_in*>(a)->sin_addr); + auto src = &(reinterpret_cast<const sockaddr_in*>(a)->sin_addr); return GetAddr4Str(src); } else if (a->sa_family == AF_INET6) { - auto src = &(reinterpret_cast<sockaddr_in6*>(a)->sin6_addr); + auto src = &(reinterpret_cast<const sockaddr_in6*>(a)->sin6_addr); return GetAddr6Str(src); } return std::string("<invalid>"); diff --git a/test/syscalls/linux/ip_socket_test_util.h b/test/syscalls/linux/ip_socket_test_util.h index 9cb4566db..0f58e0f77 100644 --- a/test/syscalls/linux/ip_socket_test_util.h +++ b/test/syscalls/linux/ip_socket_test_util.h @@ -105,14 +105,14 @@ class IfAddrHelper { }; // GetAddr4Str returns the given IPv4 network address structure as a string. -std::string GetAddr4Str(in_addr* a); +std::string GetAddr4Str(const in_addr* a); // GetAddr6Str returns the given IPv6 network address structure as a string. -std::string GetAddr6Str(in6_addr* a); +std::string GetAddr6Str(const in6_addr* a); // GetAddrStr returns the given IPv4 or IPv6 network address structure as a // string. -std::string GetAddrStr(sockaddr* a); +std::string GetAddrStr(const sockaddr* a); } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/iptables.h b/test/syscalls/linux/iptables.h index 616bea550..0719c60a4 100644 --- a/test/syscalls/linux/iptables.h +++ b/test/syscalls/linux/iptables.h @@ -188,7 +188,7 @@ struct ipt_replace { unsigned int num_counters; // The unchanged values from each ipt_entry's counters. - struct xt_counters *counters; + struct xt_counters* counters; // The entries to write to the table. This will run past the size defined by // sizeof(srtuct ipt_replace); diff --git a/test/syscalls/linux/link.cc b/test/syscalls/linux/link.cc index dd5352954..e74fa2ed5 100644 --- a/test/syscalls/linux/link.cc +++ b/test/syscalls/linux/link.cc @@ -55,7 +55,8 @@ TEST(LinkTest, CanCreateLinkFile) { const std::string newname = NewTempAbsPath(); // Get the initial link count. - uint64_t initial_link_count = ASSERT_NO_ERRNO_AND_VALUE(Links(oldfile.path())); + uint64_t initial_link_count = + ASSERT_NO_ERRNO_AND_VALUE(Links(oldfile.path())); EXPECT_THAT(link(oldfile.path().c_str(), newname.c_str()), SyscallSucceeds()); diff --git a/test/syscalls/linux/madvise.cc b/test/syscalls/linux/madvise.cc index 7fd0ea20c..5a1973f60 100644 --- a/test/syscalls/linux/madvise.cc +++ b/test/syscalls/linux/madvise.cc @@ -139,7 +139,7 @@ TEST(MadviseDontneedTest, IgnoresPermissions) { TEST(MadviseDontforkTest, AddressLength) { auto m = ASSERT_NO_ERRNO_AND_VALUE(MmapAnon(kPageSize, PROT_NONE, MAP_PRIVATE)); - char *addr = static_cast<char *>(m.ptr()); + char* addr = static_cast<char*>(m.ptr()); // Address must be page aligned. EXPECT_THAT(madvise(addr + 1, kPageSize, MADV_DONTFORK), @@ -168,9 +168,9 @@ TEST(MadviseDontforkTest, DontforkShared) { Mapping m = ASSERT_NO_ERRNO_AND_VALUE(Mmap( nullptr, kPageSize * 2, PROT_READ | PROT_WRITE, MAP_SHARED, fd.get(), 0)); - const Mapping ms1 = Mapping(reinterpret_cast<void *>(m.addr()), kPageSize); + const Mapping ms1 = Mapping(reinterpret_cast<void*>(m.addr()), kPageSize); const Mapping ms2 = - Mapping(reinterpret_cast<void *>(m.addr() + kPageSize), kPageSize); + Mapping(reinterpret_cast<void*>(m.addr() + kPageSize), kPageSize); m.release(); ASSERT_THAT(madvise(ms2.ptr(), kPageSize, MADV_DONTFORK), SyscallSucceeds()); @@ -197,11 +197,11 @@ TEST(MadviseDontforkTest, DontforkAnonPrivate) { // Mmap three anonymous pages and MADV_DONTFORK the middle page. Mapping m = ASSERT_NO_ERRNO_AND_VALUE( MmapAnon(kPageSize * 3, PROT_READ | PROT_WRITE, MAP_PRIVATE)); - const Mapping mp1 = Mapping(reinterpret_cast<void *>(m.addr()), kPageSize); + const Mapping mp1 = Mapping(reinterpret_cast<void*>(m.addr()), kPageSize); const Mapping mp2 = - Mapping(reinterpret_cast<void *>(m.addr() + kPageSize), kPageSize); + Mapping(reinterpret_cast<void*>(m.addr() + kPageSize), kPageSize); const Mapping mp3 = - Mapping(reinterpret_cast<void *>(m.addr() + 2 * kPageSize), kPageSize); + Mapping(reinterpret_cast<void*>(m.addr() + 2 * kPageSize), kPageSize); m.release(); ASSERT_THAT(madvise(mp2.ptr(), kPageSize, MADV_DONTFORK), SyscallSucceeds()); diff --git a/test/syscalls/linux/mempolicy.cc b/test/syscalls/linux/mempolicy.cc index 9d5f47651..059fad598 100644 --- a/test/syscalls/linux/mempolicy.cc +++ b/test/syscalls/linux/mempolicy.cc @@ -43,17 +43,17 @@ namespace { #define MPOL_MF_MOVE (1 << 1) #define MPOL_MF_MOVE_ALL (1 << 2) -int get_mempolicy(int *policy, uint64_t *nmask, uint64_t maxnode, void *addr, +int get_mempolicy(int* policy, uint64_t* nmask, uint64_t maxnode, void* addr, int flags) { return syscall(SYS_get_mempolicy, policy, nmask, maxnode, addr, flags); } -int set_mempolicy(int mode, uint64_t *nmask, uint64_t maxnode) { +int set_mempolicy(int mode, uint64_t* nmask, uint64_t maxnode) { return syscall(SYS_set_mempolicy, mode, nmask, maxnode); } -int mbind(void *addr, unsigned long len, int mode, - const unsigned long *nodemask, unsigned long maxnode, +int mbind(void* addr, unsigned long len, int mode, + const unsigned long* nodemask, unsigned long maxnode, unsigned flags) { return syscall(SYS_mbind, addr, len, mode, nodemask, maxnode, flags); } @@ -68,7 +68,7 @@ Cleanup ScopedMempolicy() { // Temporarily change the memory policy for the calling thread within the // caller's scope. -PosixErrorOr<Cleanup> ScopedSetMempolicy(int mode, uint64_t *nmask, +PosixErrorOr<Cleanup> ScopedSetMempolicy(int mode, uint64_t* nmask, uint64_t maxnode) { if (set_mempolicy(mode, nmask, maxnode)) { return PosixError(errno, "set_mempolicy"); diff --git a/test/syscalls/linux/mlock.cc b/test/syscalls/linux/mlock.cc index 620b4f8b4..367a90fe1 100644 --- a/test/syscalls/linux/mlock.cc +++ b/test/syscalls/linux/mlock.cc @@ -60,7 +60,6 @@ bool IsPageMlocked(uintptr_t addr) { return true; } - TEST(MlockTest, Basic) { SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(CanMlock())); auto const mapping = ASSERT_NO_ERRNO_AND_VALUE( diff --git a/test/syscalls/linux/msync.cc b/test/syscalls/linux/msync.cc index ac7146017..2b2b6aef9 100644 --- a/test/syscalls/linux/msync.cc +++ b/test/syscalls/linux/msync.cc @@ -60,9 +60,7 @@ std::vector<std::function<PosixErrorOr<Mapping>()>> SyncableMappings() { for (int const mflags : {MAP_PRIVATE, MAP_SHARED}) { int const prot = PROT_READ | (writable ? PROT_WRITE : 0); int const oflags = O_CREAT | (writable ? O_RDWR : O_RDONLY); - funcs.push_back([=] { - return MmapAnon(kPageSize, prot, mflags); - }); + funcs.push_back([=] { return MmapAnon(kPageSize, prot, mflags); }); funcs.push_back([=]() -> PosixErrorOr<Mapping> { std::string const path = NewTempAbsPath(); ASSIGN_OR_RETURN_ERRNO(auto fd, Open(path, oflags, 0644)); diff --git a/test/syscalls/linux/partial_bad_buffer.cc b/test/syscalls/linux/partial_bad_buffer.cc index 33822ee57..df7129acc 100644 --- a/test/syscalls/linux/partial_bad_buffer.cc +++ b/test/syscalls/linux/partial_bad_buffer.cc @@ -18,7 +18,9 @@ #include <netinet/tcp.h> #include <sys/mman.h> #include <sys/socket.h> +#include <sys/stat.h> #include <sys/syscall.h> +#include <sys/types.h> #include <sys/uio.h> #include <unistd.h> @@ -62,9 +64,9 @@ class PartialBadBufferTest : public ::testing::Test { // Write some initial data. size_t size = sizeof(kMessage) - 1; EXPECT_THAT(WriteFd(fd_, &kMessage, size), SyscallSucceedsWithValue(size)); - ASSERT_THAT(lseek(fd_, 0, SEEK_SET), SyscallSucceeds()); + // Map a useable buffer. addr_ = mmap(0, 2 * kPageSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); ASSERT_NE(addr_, MAP_FAILED); @@ -79,6 +81,15 @@ class PartialBadBufferTest : public ::testing::Test { bad_buffer_ = buf + kPageSize - 1; } + off_t Size() { + struct stat st; + int rc = fstat(fd_, &st); + if (rc < 0) { + return static_cast<off_t>(rc); + } + return st.st_size; + } + void TearDown() override { EXPECT_THAT(munmap(addr_, 2 * kPageSize), SyscallSucceeds()) << addr_; EXPECT_THAT(close(fd_), SyscallSucceeds()); @@ -165,97 +176,99 @@ TEST_F(PartialBadBufferTest, PreadvSmall) { } TEST_F(PartialBadBufferTest, WriteBig) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(write)(fd_, bad_buffer_, kPageSize), - SyscallFailsWithErrno(EFAULT)); + ASSERT_THAT(lseek(fd_, orig_size, SEEK_SET), SyscallSucceeds()); + EXPECT_THAT( + (n = RetryEINTR(write)(fd_, bad_buffer_, kPageSize)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, WriteSmall) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(write)(fd_, bad_buffer_, 10), - SyscallFailsWithErrno(EFAULT)); + ASSERT_THAT(lseek(fd_, orig_size, SEEK_SET), SyscallSucceeds()); + EXPECT_THAT( + (n = RetryEINTR(write)(fd_, bad_buffer_, 10)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, PwriteBig) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(pwrite)(fd_, bad_buffer_, kPageSize, 0), - SyscallFailsWithErrno(EFAULT)); + EXPECT_THAT( + (n = RetryEINTR(pwrite)(fd_, bad_buffer_, kPageSize, orig_size)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, PwriteSmall) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(pwrite)(fd_, bad_buffer_, 10, 0), - SyscallFailsWithErrno(EFAULT)); + EXPECT_THAT( + (n = RetryEINTR(pwrite)(fd_, bad_buffer_, 10, orig_size)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, WritevBig) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); - struct iovec vec; vec.iov_base = bad_buffer_; vec.iov_len = kPageSize; + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(writev)(fd_, &vec, 1), SyscallFailsWithErrno(EFAULT)); + ASSERT_THAT(lseek(fd_, orig_size, SEEK_SET), SyscallSucceeds()); + EXPECT_THAT( + (n = RetryEINTR(writev)(fd_, &vec, 1)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, WritevSmall) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); - struct iovec vec; vec.iov_base = bad_buffer_; vec.iov_len = 10; + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(writev)(fd_, &vec, 1), SyscallFailsWithErrno(EFAULT)); + ASSERT_THAT(lseek(fd_, orig_size, SEEK_SET), SyscallSucceeds()); + EXPECT_THAT( + (n = RetryEINTR(writev)(fd_, &vec, 1)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, PwritevBig) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); - struct iovec vec; vec.iov_base = bad_buffer_; vec.iov_len = kPageSize; + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(pwritev)(fd_, &vec, 1, 0), - SyscallFailsWithErrno(EFAULT)); + EXPECT_THAT( + (n = RetryEINTR(pwritev)(fd_, &vec, 1, orig_size)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } TEST_F(PartialBadBufferTest, PwritevSmall) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); - struct iovec vec; vec.iov_base = bad_buffer_; vec.iov_len = 10; + off_t orig_size = Size(); + int n; - EXPECT_THAT(RetryEINTR(pwritev)(fd_, &vec, 1, 0), - SyscallFailsWithErrno(EFAULT)); + EXPECT_THAT( + (n = RetryEINTR(pwritev)(fd_, &vec, 1, orig_size)), + AnyOf(SyscallFailsWithErrno(EFAULT), SyscallSucceedsWithValue(1))); + EXPECT_EQ(Size(), orig_size + (n >= 0 ? n : 0)); } // getdents returns EFAULT when the you claim the buffer is large enough, but @@ -283,29 +296,6 @@ TEST_F(PartialBadBufferTest, GetdentsOneEntry) { SyscallSucceedsWithValue(Gt(0))); } -// Verify that when write returns EFAULT the kernel hasn't silently written -// the initial valid bytes. -TEST_F(PartialBadBufferTest, WriteEfaultIsntPartial) { - // FIXME(b/24788078): The sentry write syscalls will return immediately - // if Access returns an error, but Access may not return an error - // and the sentry will instead perform a partial write. - SKIP_IF(IsRunningOnGvisor()); - - bad_buffer_[0] = 'A'; - EXPECT_THAT(RetryEINTR(write)(fd_, bad_buffer_, 10), - SyscallFailsWithErrno(EFAULT)); - - size_t size = 255; - char buf[255]; - memset(buf, 0, size); - - EXPECT_THAT(RetryEINTR(pread)(fd_, buf, size, 0), - SyscallSucceedsWithValue(sizeof(kMessage) - 1)); - - // 'A' has not been written. - EXPECT_STREQ(buf, kMessage); -} - PosixErrorOr<sockaddr_storage> InetLoopbackAddr(int family) { struct sockaddr_storage addr; memset(&addr, 0, sizeof(addr)); diff --git a/test/syscalls/linux/pipe.cc b/test/syscalls/linux/pipe.cc index ac9b21b24..d8e19e910 100644 --- a/test/syscalls/linux/pipe.cc +++ b/test/syscalls/linux/pipe.cc @@ -25,6 +25,7 @@ #include "absl/time/clock.h" #include "absl/time/time.h" #include "test/util/file_descriptor.h" +#include "test/util/fs_util.h" #include "test/util/posix_error.h" #include "test/util/temp_path.h" #include "test/util/test_util.h" @@ -144,11 +145,10 @@ TEST_P(PipeTest, Flags) { if (IsNamedPipe()) { // May be stubbed to zero; define locally. - constexpr int kLargefile = 0100000; EXPECT_THAT(fcntl(rfd_.get(), F_GETFL), - SyscallSucceedsWithValue(kLargefile | O_RDONLY)); + SyscallSucceedsWithValue(kOLargeFile | O_RDONLY)); EXPECT_THAT(fcntl(wfd_.get(), F_GETFL), - SyscallSucceedsWithValue(kLargefile | O_WRONLY)); + SyscallSucceedsWithValue(kOLargeFile | O_WRONLY)); } else { EXPECT_THAT(fcntl(rfd_.get(), F_GETFL), SyscallSucceedsWithValue(O_RDONLY)); EXPECT_THAT(fcntl(wfd_.get(), F_GETFL), SyscallSucceedsWithValue(O_WRONLY)); diff --git a/test/syscalls/linux/poll.cc b/test/syscalls/linux/poll.cc index 9e5aa7fd0..c42472474 100644 --- a/test/syscalls/linux/poll.cc +++ b/test/syscalls/linux/poll.cc @@ -275,7 +275,8 @@ TEST_F(PollTest, Nfds) { // Each entry in the 'fds' array refers to the eventfd and polls for // "writable" events (events=POLLOUT). This essentially guarantees that the // poll() is a no-op and allows negative testing of the 'nfds' parameter. - std::vector<struct pollfd> fds(max_fds, {.fd = efd.get(), .events = POLLOUT}); + std::vector<struct pollfd> fds(max_fds + 1, + {.fd = efd.get(), .events = POLLOUT}); // Verify that 'nfds' up to RLIMIT_NOFILE are allowed. EXPECT_THAT(RetryEINTR(poll)(fds.data(), 1, 1), SyscallSucceedsWithValue(1)); diff --git a/test/syscalls/linux/preadv2.cc b/test/syscalls/linux/preadv2.cc index 3eeaf6ad8..4a9acd7ae 100644 --- a/test/syscalls/linux/preadv2.cc +++ b/test/syscalls/linux/preadv2.cc @@ -204,7 +204,7 @@ TEST(Preadv2Test, TestInvalidOffset) { iov[0].iov_len = 0; EXPECT_THAT(preadv2(fd.get(), iov.get(), /*iovcnt=*/1, /*offset=*/-8, - /*flags=*/RWF_HIPRI), + /*flags=*/0), SyscallFailsWithErrno(EINVAL)); } diff --git a/test/syscalls/linux/proc.cc b/test/syscalls/linux/proc.cc index 5b4f29cd9..169b723eb 100644 --- a/test/syscalls/linux/proc.cc +++ b/test/syscalls/linux/proc.cc @@ -100,9 +100,39 @@ namespace { #define SUID_DUMP_ROOT 2 #endif /* SUID_DUMP_ROOT */ -// O_LARGEFILE as defined by Linux. glibc tries to be clever by setting it to 0 -// because "it isn't needed", even though Linux can return it via F_GETFL. -constexpr int kOLargeFile = 00100000; +#if defined(__x86_64__) || defined(__i386__) +// This list of "required" fields is taken from reading the file +// arch/x86/kernel/cpu/proc.c and seeing which fields will be unconditionally +// printed by the kernel. +static const char* required_fields[] = { + "processor", + "vendor_id", + "cpu family", + "model\t\t:", + "model name", + "stepping", + "cpu MHz", + "fpu\t\t:", + "fpu_exception", + "cpuid level", + "wp", + "bogomips", + "clflush size", + "cache_alignment", + "address sizes", + "power management", +}; +#elif __aarch64__ +// This list of "required" fields is taken from reading the file +// arch/arm64/kernel/cpuinfo.c and seeing which fields will be unconditionally +// printed by the kernel. +static const char* required_fields[] = { + "processor", "BogoMIPS", "Features", "CPU implementer", + "CPU architecture", "CPU variant", "CPU part", "CPU revision", +}; +#else +#error "Unknown architecture" +#endif // Takes the subprocess command line and pid. // If it returns !OK, WithSubprocess returns immediately. @@ -717,28 +747,6 @@ TEST(ProcCpuinfo, RequiredFieldsArePresent) { ASSERT_FALSE(proc_cpuinfo.empty()); std::vector<std::string> cpuinfo_fields = absl::StrSplit(proc_cpuinfo, '\n'); - // This list of "required" fields is taken from reading the file - // arch/x86/kernel/cpu/proc.c and seeing which fields will be unconditionally - // printed by the kernel. - static const char* required_fields[] = { - "processor", - "vendor_id", - "cpu family", - "model\t\t:", - "model name", - "stepping", - "cpu MHz", - "fpu\t\t:", - "fpu_exception", - "cpuid level", - "wp", - "bogomips", - "clflush size", - "cache_alignment", - "address sizes", - "power management", - }; - // Check that the usual fields are there. We don't really care about the // contents. for (const std::string& field : required_fields) { diff --git a/test/syscalls/linux/proc_net.cc b/test/syscalls/linux/proc_net.cc index 65bad06d4..3a611a86f 100644 --- a/test/syscalls/linux/proc_net.cc +++ b/test/syscalls/linux/proc_net.cc @@ -68,8 +68,8 @@ TEST(ProcSysNetIpv4Sack, CanReadAndWrite) { } PosixErrorOr<uint64_t> GetSNMPMetricFromProc(const std::string snmp, - const std::string &type, - const std::string &item) { + const std::string& type, + const std::string& item) { std::vector<std::string> snmp_vec = absl::StrSplit(snmp, '\n'); // /proc/net/snmp prints a line of headers followed by a line of metrics. @@ -127,7 +127,7 @@ TEST(ProcNetSnmp, TcpReset_NoRandomSave) { }; ASSERT_EQ(inet_pton(AF_INET, "127.0.0.1", &(sin.sin_addr)), 1); - ASSERT_THAT(connect(s.get(), (struct sockaddr *)&sin, sizeof(sin)), + ASSERT_THAT(connect(s.get(), (struct sockaddr*)&sin, sizeof(sin)), SyscallFailsWithErrno(ECONNREFUSED)); uint64_t newAttemptFails; @@ -172,19 +172,19 @@ TEST(ProcNetSnmp, TcpEstab_NoRandomSave) { }; ASSERT_EQ(inet_pton(AF_INET, "127.0.0.1", &(sin.sin_addr)), 1); - ASSERT_THAT(bind(s_listen.get(), (struct sockaddr *)&sin, sizeof(sin)), + ASSERT_THAT(bind(s_listen.get(), (struct sockaddr*)&sin, sizeof(sin)), SyscallSucceeds()); ASSERT_THAT(listen(s_listen.get(), 1), SyscallSucceeds()); // Get the port bound by the listening socket. socklen_t addrlen = sizeof(sin); ASSERT_THAT( - getsockname(s_listen.get(), reinterpret_cast<sockaddr *>(&sin), &addrlen), + getsockname(s_listen.get(), reinterpret_cast<sockaddr*>(&sin), &addrlen), SyscallSucceeds()); FileDescriptor s_connect = ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_STREAM, 0)); - ASSERT_THAT(connect(s_connect.get(), (struct sockaddr *)&sin, sizeof(sin)), + ASSERT_THAT(connect(s_connect.get(), (struct sockaddr*)&sin, sizeof(sin)), SyscallSucceeds()); auto s_accept = @@ -260,7 +260,7 @@ TEST(ProcNetSnmp, UdpNoPorts_NoRandomSave) { .sin_port = htons(4444), }; ASSERT_EQ(inet_pton(AF_INET, "127.0.0.1", &(sin.sin_addr)), 1); - ASSERT_THAT(sendto(s.get(), "a", 1, 0, (struct sockaddr *)&sin, sizeof(sin)), + ASSERT_THAT(sendto(s.get(), "a", 1, 0, (struct sockaddr*)&sin, sizeof(sin)), SyscallSucceedsWithValue(1)); uint64_t newOutDatagrams; @@ -295,18 +295,18 @@ TEST(ProcNetSnmp, UdpIn) { .sin_port = htons(0), }; ASSERT_EQ(inet_pton(AF_INET, "127.0.0.1", &(sin.sin_addr)), 1); - ASSERT_THAT(bind(server.get(), (struct sockaddr *)&sin, sizeof(sin)), + ASSERT_THAT(bind(server.get(), (struct sockaddr*)&sin, sizeof(sin)), SyscallSucceeds()); // Get the port bound by the server socket. socklen_t addrlen = sizeof(sin); ASSERT_THAT( - getsockname(server.get(), reinterpret_cast<sockaddr *>(&sin), &addrlen), + getsockname(server.get(), reinterpret_cast<sockaddr*>(&sin), &addrlen), SyscallSucceeds()); FileDescriptor client = ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0)); ASSERT_THAT( - sendto(client.get(), "a", 1, 0, (struct sockaddr *)&sin, sizeof(sin)), + sendto(client.get(), "a", 1, 0, (struct sockaddr*)&sin, sizeof(sin)), SyscallSucceedsWithValue(1)); char buf[128]; diff --git a/test/syscalls/linux/ptrace.cc b/test/syscalls/linux/ptrace.cc index 8f3800380..4dd5cf27b 100644 --- a/test/syscalls/linux/ptrace.cc +++ b/test/syscalls/linux/ptrace.cc @@ -32,6 +32,7 @@ #include "absl/time/time.h" #include "test/util/logging.h" #include "test/util/multiprocess_util.h" +#include "test/util/platform_util.h" #include "test/util/signal_util.h" #include "test/util/test_util.h" #include "test/util/thread_util.h" @@ -178,7 +179,8 @@ TEST(PtraceTest, GetSigMask) { // Install a signal handler for kBlockSignal to avoid termination and block // it. - TEST_PCHECK(signal(kBlockSignal, +[](int signo) {}) != SIG_ERR); + TEST_PCHECK(signal( + kBlockSignal, +[](int signo) {}) != SIG_ERR); MaybeSave(); TEST_PCHECK(sigprocmask(SIG_SETMASK, &blocked, nullptr) == 0); MaybeSave(); @@ -823,13 +825,8 @@ TEST(PtraceTest, // These tests requires knowledge of architecture-specific syscall convention. #ifdef __x86_64__ TEST(PtraceTest, Int3) { - switch (GvisorPlatform()) { - case Platform::kKVM: - // TODO(b/124248694): int3 isn't handled properly. - return; - default: - break; - } + SKIP_IF(PlatformSupportInt3() == PlatformSupport::NotSupported); + pid_t const child_pid = fork(); if (child_pid == 0) { // In child process. diff --git a/test/syscalls/linux/readv_common.cc b/test/syscalls/linux/readv_common.cc index 491d5f40f..2694dc64f 100644 --- a/test/syscalls/linux/readv_common.cc +++ b/test/syscalls/linux/readv_common.cc @@ -154,7 +154,7 @@ void ReadBuffersOverlapping(int fd) { char* expected_ptr = expected.data(); memcpy(expected_ptr, &kReadvTestData[overlap_bytes], overlap_bytes); memcpy(&expected_ptr[overlap_bytes], &kReadvTestData[overlap_bytes], - kReadvTestDataSize); + kReadvTestDataSize - overlap_bytes); struct iovec iovs[2]; iovs[0].iov_base = buffer.data(); diff --git a/test/syscalls/linux/rseq/BUILD b/test/syscalls/linux/rseq/BUILD index 5cfe4e56f..ed488dbc2 100644 --- a/test/syscalls/linux/rseq/BUILD +++ b/test/syscalls/linux/rseq/BUILD @@ -1,8 +1,7 @@ # This package contains a standalone rseq test binary. This binary must not # depend on libc, which might use rseq itself. -load("@bazel_tools//tools/cpp:cc_flags_supplier.bzl", "cc_flags_supplier") -load("@rules_cc//cc:defs.bzl", "cc_library") +load("//tools:defs.bzl", "cc_flags_supplier", "cc_library", "cc_toolchain") package(licenses = ["notice"]) @@ -37,8 +36,8 @@ genrule( "$(location start.S)", ]), toolchains = [ + cc_toolchain, ":no_pie_cc_flags", - "@bazel_tools//tools/cpp:current_cc_toolchain", ], visibility = ["//:sandbox"], ) diff --git a/test/syscalls/linux/seccomp.cc b/test/syscalls/linux/seccomp.cc index 6d7e543b9..2c947feb7 100644 --- a/test/syscalls/linux/seccomp.cc +++ b/test/syscalls/linux/seccomp.cc @@ -52,8 +52,8 @@ namespace { #ifdef __x86_64__ constexpr uint32_t kFilteredSyscall = SYS_vserver; #elif __aarch64__ -// Using arch_specific_syscalls which are not implemented on arm64. -constexpr uint32_t kFilteredSyscall = SYS_arch_specific_syscall+15; +// Use the last of arch_specific_syscalls which are not implemented on arm64. +constexpr uint32_t kFilteredSyscall = SYS_arch_specific_syscall + 15; #endif // Applies a seccomp-bpf filter that returns `filtered_result` for @@ -118,7 +118,8 @@ TEST(SeccompTest, RetKillCausesDeathBySIGSYS) { pid_t const pid = fork(); if (pid == 0) { // Register a signal handler for SIGSYS that we don't expect to be invoked. - RegisterSignalHandler(SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); + RegisterSignalHandler( + SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); ApplySeccompFilter(kFilteredSyscall, SECCOMP_RET_KILL); syscall(kFilteredSyscall); TEST_CHECK_MSG(false, "Survived invocation of test syscall"); @@ -137,7 +138,8 @@ TEST(SeccompTest, RetKillOnlyKillsOneThread) { pid_t const pid = fork(); if (pid == 0) { // Register a signal handler for SIGSYS that we don't expect to be invoked. - RegisterSignalHandler(SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); + RegisterSignalHandler( + SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); ApplySeccompFilter(kFilteredSyscall, SECCOMP_RET_KILL); // Pass CLONE_VFORK to block the original thread in the child process until // the clone thread exits with SIGSYS. @@ -351,7 +353,8 @@ TEST(SeccompTest, LeastPermissiveFilterReturnValueApplies) { // one that causes the kill that should be ignored. pid_t const pid = fork(); if (pid == 0) { - RegisterSignalHandler(SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); + RegisterSignalHandler( + SIGSYS, +[](int, siginfo_t*, void*) { _exit(1); }); ApplySeccompFilter(kFilteredSyscall, SECCOMP_RET_TRACE); ApplySeccompFilter(kFilteredSyscall, SECCOMP_RET_KILL); ApplySeccompFilter(kFilteredSyscall, SECCOMP_RET_ERRNO | ENOTNAM); diff --git a/test/syscalls/linux/sendfile_socket.cc b/test/syscalls/linux/sendfile_socket.cc index 3331288b7..8f7ee4163 100644 --- a/test/syscalls/linux/sendfile_socket.cc +++ b/test/syscalls/linux/sendfile_socket.cc @@ -41,15 +41,15 @@ class SendFileTest : public ::testing::TestWithParam<int> { struct sockaddr server_addr = {}; switch (family) { case AF_INET: { - struct sockaddr_in *server_addr_in = - reinterpret_cast<struct sockaddr_in *>(&server_addr); + struct sockaddr_in* server_addr_in = + reinterpret_cast<struct sockaddr_in*>(&server_addr); server_addr_in->sin_family = family; server_addr_in->sin_addr.s_addr = INADDR_ANY; break; } case AF_UNIX: { - struct sockaddr_un *server_addr_un = - reinterpret_cast<struct sockaddr_un *>(&server_addr); + struct sockaddr_un* server_addr_un = + reinterpret_cast<struct sockaddr_un*>(&server_addr); server_addr_un->sun_family = family; server_addr_un->sun_path[0] = '\0'; break; diff --git a/test/syscalls/linux/sigaction.cc b/test/syscalls/linux/sigaction.cc index 9a53fd3e0..9d9dd57a8 100644 --- a/test/syscalls/linux/sigaction.cc +++ b/test/syscalls/linux/sigaction.cc @@ -13,6 +13,7 @@ // limitations under the License. #include <signal.h> +#include <sys/syscall.h> #include "gtest/gtest.h" #include "test/util/test_util.h" @@ -23,45 +24,53 @@ namespace testing { namespace { TEST(SigactionTest, GetLessThanOrEqualToZeroFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(-1, NULL, &act), SyscallFailsWithErrno(EINVAL)); - ASSERT_THAT(sigaction(0, NULL, &act), SyscallFailsWithErrno(EINVAL)); + struct sigaction act = {}; + ASSERT_THAT(sigaction(-1, nullptr, &act), SyscallFailsWithErrno(EINVAL)); + ASSERT_THAT(sigaction(0, nullptr, &act), SyscallFailsWithErrno(EINVAL)); } TEST(SigactionTest, SetLessThanOrEqualToZeroFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(0, &act, NULL), SyscallFailsWithErrno(EINVAL)); - ASSERT_THAT(sigaction(0, &act, NULL), SyscallFailsWithErrno(EINVAL)); + struct sigaction act = {}; + ASSERT_THAT(sigaction(0, &act, nullptr), SyscallFailsWithErrno(EINVAL)); + ASSERT_THAT(sigaction(0, &act, nullptr), SyscallFailsWithErrno(EINVAL)); } TEST(SigactionTest, GetGreaterThanMaxFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(SIGRTMAX + 1, NULL, &act), + struct sigaction act = {}; + ASSERT_THAT(sigaction(SIGRTMAX + 1, nullptr, &act), SyscallFailsWithErrno(EINVAL)); } TEST(SigactionTest, SetGreaterThanMaxFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(SIGRTMAX + 1, &act, NULL), + struct sigaction act = {}; + ASSERT_THAT(sigaction(SIGRTMAX + 1, &act, nullptr), SyscallFailsWithErrno(EINVAL)); } TEST(SigactionTest, SetSigkillFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(SIGKILL, NULL, &act), SyscallSucceeds()); - ASSERT_THAT(sigaction(SIGKILL, &act, NULL), SyscallFailsWithErrno(EINVAL)); + struct sigaction act = {}; + ASSERT_THAT(sigaction(SIGKILL, nullptr, &act), SyscallSucceeds()); + ASSERT_THAT(sigaction(SIGKILL, &act, nullptr), SyscallFailsWithErrno(EINVAL)); } TEST(SigactionTest, SetSigstopFails) { - struct sigaction act; - memset(&act, 0, sizeof(act)); - ASSERT_THAT(sigaction(SIGSTOP, NULL, &act), SyscallSucceeds()); - ASSERT_THAT(sigaction(SIGSTOP, &act, NULL), SyscallFailsWithErrno(EINVAL)); + struct sigaction act = {}; + ASSERT_THAT(sigaction(SIGSTOP, nullptr, &act), SyscallSucceeds()); + ASSERT_THAT(sigaction(SIGSTOP, &act, nullptr), SyscallFailsWithErrno(EINVAL)); +} + +TEST(SigactionTest, BadSigsetFails) { + constexpr size_t kWrongSigSetSize = 43; + + struct sigaction act = {}; + + // The syscall itself (rather than the libc wrapper) takes the sigset_t size. + ASSERT_THAT( + syscall(SYS_rt_sigaction, SIGTERM, nullptr, &act, kWrongSigSetSize), + SyscallFailsWithErrno(EINVAL)); + ASSERT_THAT( + syscall(SYS_rt_sigaction, SIGTERM, &act, nullptr, kWrongSigSetSize), + SyscallFailsWithErrno(EINVAL)); } } // namespace diff --git a/test/syscalls/linux/sigaltstack.cc b/test/syscalls/linux/sigaltstack.cc index a778fa639..24e7c4960 100644 --- a/test/syscalls/linux/sigaltstack.cc +++ b/test/syscalls/linux/sigaltstack.cc @@ -114,7 +114,7 @@ TEST(SigaltstackTest, ResetByExecve) { volatile bool badhandler_on_sigaltstack = true; // Set by the handler. char* volatile badhandler_low_water_mark = nullptr; // Set by the handler. -volatile uint8_t badhandler_recursive_faults = 0; // Consumed by the handler. +volatile uint8_t badhandler_recursive_faults = 0; // Consumed by the handler. void badhandler(int sig, siginfo_t* siginfo, void* arg) { char stack_var = 0; @@ -168,8 +168,8 @@ TEST(SigaltstackTest, WalksOffBottom) { // Trigger a single fault. badhandler_low_water_mark = - static_cast<char*>(stack.ss_sp) + SIGSTKSZ; // Expected top. - badhandler_recursive_faults = 0; // Disable refault. + static_cast<char*>(stack.ss_sp) + SIGSTKSZ; // Expected top. + badhandler_recursive_faults = 0; // Disable refault. Fault(); EXPECT_TRUE(badhandler_on_sigaltstack); EXPECT_THAT(sigaltstack(nullptr, &stack), SyscallSucceeds()); diff --git a/test/syscalls/linux/sigiret.cc b/test/syscalls/linux/sigiret.cc index a47c781ea..4deb1ae95 100644 --- a/test/syscalls/linux/sigiret.cc +++ b/test/syscalls/linux/sigiret.cc @@ -78,8 +78,8 @@ TEST(SigIretTest, CheckRcxR11) { "1: pause; cmpl $0, %[gotvtalrm]; je 1b;" // while (!gotvtalrm); "movq %%rcx, %[rcx];" // rcx = %rcx "movq %%r11, %[r11];" // r11 = %r11 - : [ready] "=m"(ready), [rcx] "+m"(rcx), [r11] "+m"(r11) - : [gotvtalrm] "m"(gotvtalrm) + : [ ready ] "=m"(ready), [ rcx ] "+m"(rcx), [ r11 ] "+m"(r11) + : [ gotvtalrm ] "m"(gotvtalrm) : "cc", "memory", "rcx", "r11"); // If sigreturn(2) returns via 'sysret' then %rcx and %r11 will be diff --git a/test/syscalls/linux/signalfd.cc b/test/syscalls/linux/signalfd.cc index 09ecad34a..95be4b66c 100644 --- a/test/syscalls/linux/signalfd.cc +++ b/test/syscalls/linux/signalfd.cc @@ -39,6 +39,7 @@ namespace testing { namespace { constexpr int kSigno = SIGUSR1; +constexpr int kSignoMax = 64; // SIGRTMAX constexpr int kSignoAlt = SIGUSR2; // Returns a new signalfd. @@ -51,41 +52,45 @@ inline PosixErrorOr<FileDescriptor> NewSignalFD(sigset_t* mask, int flags = 0) { return FileDescriptor(fd); } -TEST(Signalfd, Basic) { +class SignalfdTest : public ::testing::TestWithParam<int> {}; + +TEST_P(SignalfdTest, Basic) { + int signo = GetParam(); // Create the signalfd. sigset_t mask; sigemptyset(&mask); - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, 0)); // Deliver the blocked signal. const auto scoped_sigmask = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSigno)); - ASSERT_THAT(tgkill(getpid(), gettid(), kSigno), SyscallSucceeds()); + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, signo)); + ASSERT_THAT(tgkill(getpid(), gettid(), signo), SyscallSucceeds()); // We should now read the signal. struct signalfd_siginfo rbuf; ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); } -TEST(Signalfd, MaskWorks) { +TEST_P(SignalfdTest, MaskWorks) { + int signo = GetParam(); // Create two signalfds with different masks. sigset_t mask1, mask2; sigemptyset(&mask1); sigemptyset(&mask2); - sigaddset(&mask1, kSigno); + sigaddset(&mask1, signo); sigaddset(&mask2, kSignoAlt); FileDescriptor fd1 = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask1, 0)); FileDescriptor fd2 = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask2, 0)); // Deliver the two signals. const auto scoped_sigmask1 = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSigno)); + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, signo)); const auto scoped_sigmask2 = ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSignoAlt)); - ASSERT_THAT(tgkill(getpid(), gettid(), kSigno), SyscallSucceeds()); + ASSERT_THAT(tgkill(getpid(), gettid(), signo), SyscallSucceeds()); ASSERT_THAT(tgkill(getpid(), gettid(), kSignoAlt), SyscallSucceeds()); // We should see the signals on the appropriate signalfds. @@ -98,7 +103,7 @@ TEST(Signalfd, MaskWorks) { EXPECT_EQ(rbuf2.ssi_signo, kSignoAlt); ASSERT_THAT(read(fd1.get(), &rbuf1, sizeof(rbuf1)), SyscallSucceedsWithValue(sizeof(rbuf1))); - EXPECT_EQ(rbuf1.ssi_signo, kSigno); + EXPECT_EQ(rbuf1.ssi_signo, signo); } TEST(Signalfd, Cloexec) { @@ -111,11 +116,12 @@ TEST(Signalfd, Cloexec) { EXPECT_THAT(fcntl(fd.get(), F_GETFD), SyscallSucceedsWithValue(FD_CLOEXEC)); } -TEST(Signalfd, Blocking) { +TEST_P(SignalfdTest, Blocking) { + int signo = GetParam(); // Create the signalfd in blocking mode. sigset_t mask; sigemptyset(&mask); - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, 0)); // Shared tid variable. @@ -136,7 +142,7 @@ TEST(Signalfd, Blocking) { struct signalfd_siginfo rbuf; ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); }); // Wait until blocked. @@ -149,20 +155,21 @@ TEST(Signalfd, Blocking) { // // See gvisor.dev/issue/139. if (IsRunningOnGvisor()) { - ASSERT_THAT(tgkill(getpid(), gettid(), kSigno), SyscallSucceeds()); + ASSERT_THAT(tgkill(getpid(), gettid(), signo), SyscallSucceeds()); } else { - ASSERT_THAT(tgkill(getpid(), tid, kSigno), SyscallSucceeds()); + ASSERT_THAT(tgkill(getpid(), tid, signo), SyscallSucceeds()); } // Ensure that it was received. t.Join(); } -TEST(Signalfd, ThreadGroup) { +TEST_P(SignalfdTest, ThreadGroup) { + int signo = GetParam(); // Create the signalfd in blocking mode. sigset_t mask; sigemptyset(&mask); - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, 0)); // Shared variable. @@ -176,7 +183,7 @@ TEST(Signalfd, ThreadGroup) { struct signalfd_siginfo rbuf; ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); // Wait for the other thread. absl::MutexLock ml(&mu); @@ -185,7 +192,7 @@ TEST(Signalfd, ThreadGroup) { }); // Deliver the signal to the threadgroup. - ASSERT_THAT(kill(getpid(), kSigno), SyscallSucceeds()); + ASSERT_THAT(kill(getpid(), signo), SyscallSucceeds()); // Wait for the first thread to process. { @@ -194,13 +201,13 @@ TEST(Signalfd, ThreadGroup) { } // Deliver to the thread group again (other thread still exists). - ASSERT_THAT(kill(getpid(), kSigno), SyscallSucceeds()); + ASSERT_THAT(kill(getpid(), signo), SyscallSucceeds()); // Ensure that we can also receive it. struct signalfd_siginfo rbuf; ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); // Mark the test as done. { @@ -212,11 +219,12 @@ TEST(Signalfd, ThreadGroup) { t.Join(); } -TEST(Signalfd, Nonblock) { +TEST_P(SignalfdTest, Nonblock) { + int signo = GetParam(); // Create the signalfd in non-blocking mode. sigset_t mask; sigemptyset(&mask); - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, SFD_NONBLOCK)); @@ -227,20 +235,21 @@ TEST(Signalfd, Nonblock) { // Block and deliver the signal. const auto scoped_sigmask = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSigno)); - ASSERT_THAT(tgkill(getpid(), gettid(), kSigno), SyscallSucceeds()); + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, signo)); + ASSERT_THAT(tgkill(getpid(), gettid(), signo), SyscallSucceeds()); // Ensure that a read actually works. ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); // Should block again. EXPECT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallFailsWithErrno(EWOULDBLOCK)); } -TEST(Signalfd, SetMask) { +TEST_P(SignalfdTest, SetMask) { + int signo = GetParam(); // Create the signalfd matching nothing. sigset_t mask; sigemptyset(&mask); @@ -249,8 +258,8 @@ TEST(Signalfd, SetMask) { // Block and deliver a signal. const auto scoped_sigmask = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSigno)); - ASSERT_THAT(tgkill(getpid(), gettid(), kSigno), SyscallSucceeds()); + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, signo)); + ASSERT_THAT(tgkill(getpid(), gettid(), signo), SyscallSucceeds()); // We should have nothing. struct signalfd_siginfo rbuf; @@ -258,29 +267,30 @@ TEST(Signalfd, SetMask) { SyscallFailsWithErrno(EWOULDBLOCK)); // Change the signal mask. - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); ASSERT_THAT(signalfd(fd.get(), &mask, 0), SyscallSucceeds()); // We should now have the signal. ASSERT_THAT(read(fd.get(), &rbuf, sizeof(rbuf)), SyscallSucceedsWithValue(sizeof(rbuf))); - EXPECT_EQ(rbuf.ssi_signo, kSigno); + EXPECT_EQ(rbuf.ssi_signo, signo); } -TEST(Signalfd, Poll) { +TEST_P(SignalfdTest, Poll) { + int signo = GetParam(); // Create the signalfd. sigset_t mask; sigemptyset(&mask); - sigaddset(&mask, kSigno); + sigaddset(&mask, signo); FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, 0)); // Block the signal, and start a thread to deliver it. const auto scoped_sigmask = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, kSigno)); + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, signo)); pid_t orig_tid = gettid(); ScopedThread t([&] { absl::SleepFor(absl::Seconds(5)); - ASSERT_THAT(tgkill(getpid(), orig_tid, kSigno), SyscallSucceeds()); + ASSERT_THAT(tgkill(getpid(), orig_tid, signo), SyscallSucceeds()); }); // Start polling for the signal. We expect that it is not available at the @@ -297,19 +307,18 @@ TEST(Signalfd, Poll) { SyscallSucceedsWithValue(sizeof(rbuf))); } -TEST(Signalfd, KillStillKills) { - sigset_t mask; - sigemptyset(&mask); - sigaddset(&mask, SIGKILL); - FileDescriptor fd = - ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, SFD_CLOEXEC)); - - // Just because there is a signalfd, we shouldn't see any change in behavior - // for unblockable signals. It's easier to test this with SIGKILL. - const auto scoped_sigmask = - ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, SIGKILL)); - EXPECT_EXIT(tgkill(getpid(), gettid(), SIGKILL), KilledBySignal(SIGKILL), ""); +std::string PrintSigno(::testing::TestParamInfo<int> info) { + switch (info.param) { + case kSigno: + return "kSigno"; + case kSignoMax: + return "kSignoMax"; + default: + return absl::StrCat(info.param); + } } +INSTANTIATE_TEST_SUITE_P(Signalfd, SignalfdTest, + ::testing::Values(kSigno, kSignoMax), PrintSigno); TEST(Signalfd, Ppoll) { sigset_t mask; @@ -328,6 +337,20 @@ TEST(Signalfd, Ppoll) { SyscallSucceedsWithValue(0)); } +TEST(Signalfd, KillStillKills) { + sigset_t mask; + sigemptyset(&mask); + sigaddset(&mask, SIGKILL); + FileDescriptor fd = + ASSERT_NO_ERRNO_AND_VALUE(NewSignalFD(&mask, SFD_CLOEXEC)); + + // Just because there is a signalfd, we shouldn't see any change in behavior + // for unblockable signals. It's easier to test this with SIGKILL. + const auto scoped_sigmask = + ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_BLOCK, SIGKILL)); + EXPECT_EXIT(tgkill(getpid(), gettid(), SIGKILL), KilledBySignal(SIGKILL), ""); +} + } // namespace } // namespace testing @@ -340,6 +363,7 @@ int main(int argc, char** argv) { sigset_t set; sigemptyset(&set); sigaddset(&set, gvisor::testing::kSigno); + sigaddset(&set, gvisor::testing::kSignoMax); sigaddset(&set, gvisor::testing::kSignoAlt); TEST_PCHECK(sigprocmask(SIG_BLOCK, &set, nullptr) == 0); diff --git a/test/syscalls/linux/socket_abstract.cc b/test/syscalls/linux/socket_abstract.cc index 715d87b76..00999f192 100644 --- a/test/syscalls/linux/socket_abstract.cc +++ b/test/syscalls/linux/socket_abstract.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -43,5 +44,6 @@ INSTANTIATE_TEST_SUITE_P( AbstractUnixSockets, UnixSocketPairCmsgTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_bind_to_device_distribution.cc b/test/syscalls/linux/socket_bind_to_device_distribution.cc index 5767181a1..5ed57625c 100644 --- a/test/syscalls/linux/socket_bind_to_device_distribution.cc +++ b/test/syscalls/linux/socket_bind_to_device_distribution.cc @@ -183,7 +183,14 @@ TEST_P(BindToDeviceDistributionTest, Tcp) { } // Receive some data from a socket to be sure that the connect() // system call has been completed on another side. - int data; + // Do a short read and then close the socket to trigger a RST. This + // ensures that both ends of the connection are cleaned up and no + // goroutines hang around in TIME-WAIT. We do this so that this test + // does not timeout under gotsan runs where lots of goroutines can + // cause the test to use absurd amounts of memory. + // + // See: https://tools.ietf.org/html/rfc2525#page-50 section 2.17 + uint16_t data; EXPECT_THAT( RetryEINTR(recv)(fd.ValueOrDie().get(), &data, sizeof(data), 0), SyscallSucceedsWithValue(sizeof(data))); @@ -198,15 +205,29 @@ TEST_P(BindToDeviceDistributionTest, Tcp) { } for (int i = 0; i < kConnectAttempts; i++) { - FileDescriptor const fd = ASSERT_NO_ERRNO_AND_VALUE( + const FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE( Socket(connector.family(), SOCK_STREAM, IPPROTO_TCP)); ASSERT_THAT( RetryEINTR(connect)(fd.get(), reinterpret_cast<sockaddr*>(&conn_addr), connector.addr_len), SyscallSucceeds()); + // Do two separate sends to ensure two segments are received. This is + // required for netstack where read is incorrectly assuming a whole + // segment is read when endpoint.Read() is called which is technically + // incorrect as the syscall that invoked endpoint.Read() may only + // consume it partially. This results in a case where a close() of + // such a socket does not trigger a RST in netstack due to the + // endpoint assuming that the endpoint has no unread data. EXPECT_THAT(RetryEINTR(send)(fd.get(), &i, sizeof(i), 0), SyscallSucceedsWithValue(sizeof(i))); + + // TODO(gvisor.dev/issue/1449): Remove this block once netstack correctly + // generates a RST. + if (IsRunningOnGvisor()) { + EXPECT_THAT(RetryEINTR(send)(fd.get(), &i, sizeof(i), 0), + SyscallSucceedsWithValue(sizeof(i))); + } } // Join threads to be sure that all connections have been counted. diff --git a/test/syscalls/linux/socket_bind_to_device_sequence.cc b/test/syscalls/linux/socket_bind_to_device_sequence.cc index 34b1058a9..637d1151a 100644 --- a/test/syscalls/linux/socket_bind_to_device_sequence.cc +++ b/test/syscalls/linux/socket_bind_to_device_sequence.cc @@ -66,7 +66,7 @@ class BindToDeviceSequenceTest : public ::testing::TestWithParam<SocketKind> { // Gets a device by device_id. If the device_id has been seen before, returns // the previously returned device. If not, finds or creates a new device. // Returns an empty string on failure. - void GetDevice(int device_id, string *device_name) { + void GetDevice(int device_id, string* device_name) { auto device = devices_.find(device_id); if (device != devices_.end()) { *device_name = device->second; @@ -112,7 +112,7 @@ class BindToDeviceSequenceTest : public ::testing::TestWithParam<SocketKind> { // Sets the socket_id to uniquely identify the socket bound if it is not // nullptr. void BindSocket(bool reuse_port, bool reuse_addr, int device_id = 0, - int want = 0, int *socket_id = nullptr) { + int want = 0, int* socket_id = nullptr) { next_socket_id_++; sockets_to_close_[next_socket_id_] = ASSERT_NO_ERRNO_AND_VALUE(NewSocket()); auto socket_fd = sockets_to_close_[next_socket_id_]->get(); @@ -154,12 +154,12 @@ class BindToDeviceSequenceTest : public ::testing::TestWithParam<SocketKind> { addr.sin_port = port_; if (want == 0) { ASSERT_THAT( - bind(socket_fd, reinterpret_cast<const struct sockaddr *>(&addr), + bind(socket_fd, reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)), SyscallSucceeds()); } else { ASSERT_THAT( - bind(socket_fd, reinterpret_cast<const struct sockaddr *>(&addr), + bind(socket_fd, reinterpret_cast<const struct sockaddr*>(&addr), sizeof(addr)), SyscallFailsWithErrno(want)); } @@ -169,7 +169,7 @@ class BindToDeviceSequenceTest : public ::testing::TestWithParam<SocketKind> { // remember it for future commands. socklen_t addr_size = sizeof(addr); ASSERT_THAT( - getsockname(socket_fd, reinterpret_cast<struct sockaddr *>(&addr), + getsockname(socket_fd, reinterpret_cast<struct sockaddr*>(&addr), &addr_size), SyscallSucceeds()); port_ = addr.sin_port; diff --git a/test/syscalls/linux/socket_filesystem.cc b/test/syscalls/linux/socket_filesystem.cc index 74e262959..287359363 100644 --- a/test/syscalls/linux/socket_filesystem.cc +++ b/test/syscalls/linux/socket_filesystem.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -43,5 +44,6 @@ INSTANTIATE_TEST_SUITE_P( FilesystemUnixSockets, UnixSocketPairCmsgTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_inet_loopback.cc b/test/syscalls/linux/socket_inet_loopback.cc index 619d41901..3bf7081b9 100644 --- a/test/syscalls/linux/socket_inet_loopback.cc +++ b/test/syscalls/linux/socket_inet_loopback.cc @@ -32,6 +32,7 @@ #include "absl/strings/str_cat.h" #include "absl/time/clock.h" #include "absl/time/time.h" +#include "test/syscalls/linux/ip_socket_test_util.h" #include "test/syscalls/linux/socket_test_util.h" #include "test/util/file_descriptor.h" #include "test/util/posix_error.h" @@ -102,6 +103,161 @@ TEST(BadSocketPairArgs, ValidateErrForBadCallsToSocketPair) { SyscallFailsWithErrno(EAFNOSUPPORT)); } +enum class Operation { + Bind, + Connect, + SendTo, +}; + +std::string OperationToString(Operation operation) { + switch (operation) { + case Operation::Bind: + return "Bind"; + case Operation::Connect: + return "Connect"; + case Operation::SendTo: + return "SendTo"; + } +} + +using OperationSequence = std::vector<Operation>; + +using DualStackSocketTest = + ::testing::TestWithParam<std::tuple<TestAddress, OperationSequence>>; + +TEST_P(DualStackSocketTest, AddressOperations) { + const FileDescriptor fd = + ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET6, SOCK_DGRAM, 0)); + + const TestAddress& addr = std::get<0>(GetParam()); + const OperationSequence& operations = std::get<1>(GetParam()); + + auto addr_in = reinterpret_cast<const sockaddr*>(&addr.addr); + + // sockets may only be bound once. Both `connect` and `sendto` cause a socket + // to be bound. + bool bound = false; + for (const Operation& operation : operations) { + bool sockname = false; + bool peername = false; + switch (operation) { + case Operation::Bind: { + ASSERT_NO_ERRNO(SetAddrPort( + addr.family(), const_cast<sockaddr_storage*>(&addr.addr), 0)); + + int bind_ret = bind(fd.get(), addr_in, addr.addr_len); + + // Dual stack sockets may only be bound to AF_INET6. + if (!bound && addr.family() == AF_INET6) { + EXPECT_THAT(bind_ret, SyscallSucceeds()); + bound = true; + + sockname = true; + } else { + EXPECT_THAT(bind_ret, SyscallFailsWithErrno(EINVAL)); + } + break; + } + case Operation::Connect: { + ASSERT_NO_ERRNO(SetAddrPort( + addr.family(), const_cast<sockaddr_storage*>(&addr.addr), 1337)); + + EXPECT_THAT(connect(fd.get(), addr_in, addr.addr_len), + SyscallSucceeds()) + << GetAddrStr(addr_in); + bound = true; + + sockname = true; + peername = true; + + break; + } + case Operation::SendTo: { + const char payload[] = "hello"; + ASSERT_NO_ERRNO(SetAddrPort( + addr.family(), const_cast<sockaddr_storage*>(&addr.addr), 1337)); + + ssize_t sendto_ret = sendto(fd.get(), &payload, sizeof(payload), 0, + addr_in, addr.addr_len); + + EXPECT_THAT(sendto_ret, SyscallSucceedsWithValue(sizeof(payload))); + sockname = !bound; + bound = true; + break; + } + } + + if (sockname) { + sockaddr_storage sock_addr; + socklen_t addrlen = sizeof(sock_addr); + ASSERT_THAT(getsockname(fd.get(), reinterpret_cast<sockaddr*>(&sock_addr), + &addrlen), + SyscallSucceeds()); + ASSERT_EQ(addrlen, sizeof(struct sockaddr_in6)); + + auto sock_addr_in6 = reinterpret_cast<const sockaddr_in6*>(&sock_addr); + + if (operation == Operation::SendTo) { + EXPECT_EQ(sock_addr_in6->sin6_family, AF_INET6); + EXPECT_TRUE(IN6_IS_ADDR_UNSPECIFIED(sock_addr_in6->sin6_addr.s6_addr32)) + << OperationToString(operation) << " getsocknam=" + << GetAddrStr(reinterpret_cast<sockaddr*>(&sock_addr)); + + EXPECT_NE(sock_addr_in6->sin6_port, 0); + } else if (IN6_IS_ADDR_V4MAPPED( + reinterpret_cast<const sockaddr_in6*>(addr_in) + ->sin6_addr.s6_addr32)) { + EXPECT_TRUE(IN6_IS_ADDR_V4MAPPED(sock_addr_in6->sin6_addr.s6_addr32)) + << OperationToString(operation) << " getsocknam=" + << GetAddrStr(reinterpret_cast<sockaddr*>(&sock_addr)); + } + } + + if (peername) { + sockaddr_storage peer_addr; + socklen_t addrlen = sizeof(peer_addr); + ASSERT_THAT(getpeername(fd.get(), reinterpret_cast<sockaddr*>(&peer_addr), + &addrlen), + SyscallSucceeds()); + ASSERT_EQ(addrlen, sizeof(struct sockaddr_in6)); + + if (addr.family() == AF_INET || + IN6_IS_ADDR_V4MAPPED(reinterpret_cast<const sockaddr_in6*>(addr_in) + ->sin6_addr.s6_addr32)) { + EXPECT_TRUE(IN6_IS_ADDR_V4MAPPED( + reinterpret_cast<const sockaddr_in6*>(&peer_addr) + ->sin6_addr.s6_addr32)) + << OperationToString(operation) << " getpeername=" + << GetAddrStr(reinterpret_cast<sockaddr*>(&peer_addr)); + } + } + } +} + +// TODO(gvisor.dev/issues/1556): uncomment V4MappedAny. +INSTANTIATE_TEST_SUITE_P( + All, DualStackSocketTest, + ::testing::Combine( + ::testing::Values(V4Any(), V4Loopback(), /*V4MappedAny(),*/ + V4MappedLoopback(), V6Any(), V6Loopback()), + ::testing::ValuesIn<OperationSequence>( + {{Operation::Bind, Operation::Connect, Operation::SendTo}, + {Operation::Bind, Operation::SendTo, Operation::Connect}, + {Operation::Connect, Operation::Bind, Operation::SendTo}, + {Operation::Connect, Operation::SendTo, Operation::Bind}, + {Operation::SendTo, Operation::Bind, Operation::Connect}, + {Operation::SendTo, Operation::Connect, Operation::Bind}})), + [](::testing::TestParamInfo< + std::tuple<TestAddress, OperationSequence>> const& info) { + const TestAddress& addr = std::get<0>(info.param); + const OperationSequence& operations = std::get<1>(info.param); + std::string s = addr.description; + for (const Operation& operation : operations) { + absl::StrAppend(&s, OperationToString(operation)); + } + return s; + }); + void tcpSimpleConnectTest(TestAddress const& listener, TestAddress const& connector, bool unbound) { // Create the listening socket. @@ -377,7 +533,7 @@ TEST_P(SocketInetLoopbackTest, TCPFinWait2Test_NoRandomSave) { // Sleep for a little over the linger timeout to reduce flakiness in // save/restore tests. - absl::SleepFor(absl::Seconds(kTCPLingerTimeout + 1)); + absl::SleepFor(absl::Seconds(kTCPLingerTimeout + 2)); ds.reset(); @@ -672,6 +828,164 @@ TEST_P(SocketInetLoopbackTest, AcceptedInheritsTCPUserTimeout) { EXPECT_EQ(get, kUserTimeout); } +// TODO(gvisor.dev/issue/1688): Partially completed passive endpoints are not +// saved. Enable S/R once issue is fixed. +TEST_P(SocketInetLoopbackTest, TCPDeferAccept_NoRandomSave) { + // TODO(gvisor.dev/issue/1688): Partially completed passive endpoints are not + // saved. Enable S/R issue is fixed. + DisableSave ds; + + auto const& param = GetParam(); + TestAddress const& listener = param.listener; + TestAddress const& connector = param.connector; + + // Create the listening socket. + const FileDescriptor listen_fd = ASSERT_NO_ERRNO_AND_VALUE( + Socket(listener.family(), SOCK_STREAM, IPPROTO_TCP)); + sockaddr_storage listen_addr = listener.addr; + ASSERT_THAT(bind(listen_fd.get(), reinterpret_cast<sockaddr*>(&listen_addr), + listener.addr_len), + SyscallSucceeds()); + ASSERT_THAT(listen(listen_fd.get(), SOMAXCONN), SyscallSucceeds()); + + // Get the port bound by the listening socket. + socklen_t addrlen = listener.addr_len; + ASSERT_THAT(getsockname(listen_fd.get(), + reinterpret_cast<sockaddr*>(&listen_addr), &addrlen), + SyscallSucceeds()); + + const uint16_t port = + ASSERT_NO_ERRNO_AND_VALUE(AddrPort(listener.family(), listen_addr)); + + // Set the TCP_DEFER_ACCEPT on the listening socket. + constexpr int kTCPDeferAccept = 3; + ASSERT_THAT(setsockopt(listen_fd.get(), IPPROTO_TCP, TCP_DEFER_ACCEPT, + &kTCPDeferAccept, sizeof(kTCPDeferAccept)), + SyscallSucceeds()); + + // Connect to the listening socket. + FileDescriptor conn_fd = ASSERT_NO_ERRNO_AND_VALUE( + Socket(connector.family(), SOCK_STREAM, IPPROTO_TCP)); + + sockaddr_storage conn_addr = connector.addr; + ASSERT_NO_ERRNO(SetAddrPort(connector.family(), &conn_addr, port)); + ASSERT_THAT(RetryEINTR(connect)(conn_fd.get(), + reinterpret_cast<sockaddr*>(&conn_addr), + connector.addr_len), + SyscallSucceeds()); + + // Set the listening socket to nonblock so that we can verify that there is no + // connection in queue despite the connect above succeeding since the peer has + // sent no data and TCP_DEFER_ACCEPT is set on the listening socket. Set the + // FD to O_NONBLOCK. + int opts; + ASSERT_THAT(opts = fcntl(listen_fd.get(), F_GETFL), SyscallSucceeds()); + opts |= O_NONBLOCK; + ASSERT_THAT(fcntl(listen_fd.get(), F_SETFL, opts), SyscallSucceeds()); + + ASSERT_THAT(accept(listen_fd.get(), nullptr, nullptr), + SyscallFailsWithErrno(EWOULDBLOCK)); + + // Set FD back to blocking. + opts &= ~O_NONBLOCK; + ASSERT_THAT(fcntl(listen_fd.get(), F_SETFL, opts), SyscallSucceeds()); + + // Now write some data to the socket. + int data = 0; + ASSERT_THAT(RetryEINTR(write)(conn_fd.get(), &data, sizeof(data)), + SyscallSucceedsWithValue(sizeof(data))); + + // This should now cause the connection to complete and be delivered to the + // accept socket. + + // Accept the connection. + auto accepted = + ASSERT_NO_ERRNO_AND_VALUE(Accept(listen_fd.get(), nullptr, nullptr)); + + // Verify that the accepted socket returns the data written. + int get = -1; + ASSERT_THAT(RetryEINTR(recv)(accepted.get(), &get, sizeof(get), 0), + SyscallSucceedsWithValue(sizeof(get))); + + EXPECT_EQ(get, data); +} + +// TODO(gvisor.dev/issue/1688): Partially completed passive endpoints are not +// saved. Enable S/R once issue is fixed. +TEST_P(SocketInetLoopbackTest, TCPDeferAcceptTimeout_NoRandomSave) { + // TODO(gvisor.dev/issue/1688): Partially completed passive endpoints are not + // saved. Enable S/R once issue is fixed. + DisableSave ds; + + auto const& param = GetParam(); + TestAddress const& listener = param.listener; + TestAddress const& connector = param.connector; + + // Create the listening socket. + const FileDescriptor listen_fd = ASSERT_NO_ERRNO_AND_VALUE( + Socket(listener.family(), SOCK_STREAM, IPPROTO_TCP)); + sockaddr_storage listen_addr = listener.addr; + ASSERT_THAT(bind(listen_fd.get(), reinterpret_cast<sockaddr*>(&listen_addr), + listener.addr_len), + SyscallSucceeds()); + ASSERT_THAT(listen(listen_fd.get(), SOMAXCONN), SyscallSucceeds()); + + // Get the port bound by the listening socket. + socklen_t addrlen = listener.addr_len; + ASSERT_THAT(getsockname(listen_fd.get(), + reinterpret_cast<sockaddr*>(&listen_addr), &addrlen), + SyscallSucceeds()); + + const uint16_t port = + ASSERT_NO_ERRNO_AND_VALUE(AddrPort(listener.family(), listen_addr)); + + // Set the TCP_DEFER_ACCEPT on the listening socket. + constexpr int kTCPDeferAccept = 3; + ASSERT_THAT(setsockopt(listen_fd.get(), IPPROTO_TCP, TCP_DEFER_ACCEPT, + &kTCPDeferAccept, sizeof(kTCPDeferAccept)), + SyscallSucceeds()); + + // Connect to the listening socket. + FileDescriptor conn_fd = ASSERT_NO_ERRNO_AND_VALUE( + Socket(connector.family(), SOCK_STREAM, IPPROTO_TCP)); + + sockaddr_storage conn_addr = connector.addr; + ASSERT_NO_ERRNO(SetAddrPort(connector.family(), &conn_addr, port)); + ASSERT_THAT(RetryEINTR(connect)(conn_fd.get(), + reinterpret_cast<sockaddr*>(&conn_addr), + connector.addr_len), + SyscallSucceeds()); + + // Set the listening socket to nonblock so that we can verify that there is no + // connection in queue despite the connect above succeeding since the peer has + // sent no data and TCP_DEFER_ACCEPT is set on the listening socket. Set the + // FD to O_NONBLOCK. + int opts; + ASSERT_THAT(opts = fcntl(listen_fd.get(), F_GETFL), SyscallSucceeds()); + opts |= O_NONBLOCK; + ASSERT_THAT(fcntl(listen_fd.get(), F_SETFL, opts), SyscallSucceeds()); + + // Verify that there is no acceptable connection before TCP_DEFER_ACCEPT + // timeout is hit. + absl::SleepFor(absl::Seconds(kTCPDeferAccept - 1)); + ASSERT_THAT(accept(listen_fd.get(), nullptr, nullptr), + SyscallFailsWithErrno(EWOULDBLOCK)); + + // Set FD back to blocking. + opts &= ~O_NONBLOCK; + ASSERT_THAT(fcntl(listen_fd.get(), F_SETFL, opts), SyscallSucceeds()); + + // Now sleep for a little over the TCP_DEFER_ACCEPT duration. When the timeout + // is hit a SYN-ACK should be retransmitted by the listener as a last ditch + // attempt to complete the connection with or without data. + absl::SleepFor(absl::Seconds(2)); + + // Verify that we have a connection that can be accepted even though no + // data was written. + auto accepted = + ASSERT_NO_ERRNO_AND_VALUE(Accept(listen_fd.get(), nullptr, nullptr)); +} + INSTANTIATE_TEST_SUITE_P( All, SocketInetLoopbackTest, ::testing::Values( @@ -714,7 +1028,7 @@ TEST_P(SocketInetReusePortTest, TcpPortReuseMultiThread_NoRandomSave) { sockaddr_storage listen_addr = listener.addr; sockaddr_storage conn_addr = connector.addr; constexpr int kThreadCount = 3; - constexpr int kConnectAttempts = 4096; + constexpr int kConnectAttempts = 10000; // Create the listening socket. FileDescriptor listener_fds[kThreadCount]; @@ -729,7 +1043,7 @@ TEST_P(SocketInetReusePortTest, TcpPortReuseMultiThread_NoRandomSave) { ASSERT_THAT( bind(fd, reinterpret_cast<sockaddr*>(&listen_addr), listener.addr_len), SyscallSucceeds()); - ASSERT_THAT(listen(fd, kConnectAttempts / 3), SyscallSucceeds()); + ASSERT_THAT(listen(fd, 40), SyscallSucceeds()); // On the first bind we need to determine which port was bound. if (i != 0) { @@ -772,7 +1086,14 @@ TEST_P(SocketInetReusePortTest, TcpPortReuseMultiThread_NoRandomSave) { } // Receive some data from a socket to be sure that the connect() // system call has been completed on another side. - int data; + // Do a short read and then close the socket to trigger a RST. This + // ensures that both ends of the connection are cleaned up and no + // goroutines hang around in TIME-WAIT. We do this so that this test + // does not timeout under gotsan runs where lots of goroutines can + // cause the test to use absurd amounts of memory. + // + // See: https://tools.ietf.org/html/rfc2525#page-50 section 2.17 + uint16_t data; EXPECT_THAT( RetryEINTR(recv)(fd.ValueOrDie().get(), &data, sizeof(data), 0), SyscallSucceedsWithValue(sizeof(data))); @@ -795,8 +1116,22 @@ TEST_P(SocketInetReusePortTest, TcpPortReuseMultiThread_NoRandomSave) { connector.addr_len), SyscallSucceeds()); + // Do two separate sends to ensure two segments are received. This is + // required for netstack where read is incorrectly assuming a whole + // segment is read when endpoint.Read() is called which is technically + // incorrect as the syscall that invoked endpoint.Read() may only + // consume it partially. This results in a case where a close() of + // such a socket does not trigger a RST in netstack due to the + // endpoint assuming that the endpoint has no unread data. EXPECT_THAT(RetryEINTR(send)(fd.get(), &i, sizeof(i), 0), SyscallSucceedsWithValue(sizeof(i))); + + // TODO(gvisor.dev/issue/1449): Remove this block once netstack correctly + // generates a RST. + if (IsRunningOnGvisor()) { + EXPECT_THAT(RetryEINTR(send)(fd.get(), &i, sizeof(i), 0), + SyscallSucceedsWithValue(sizeof(i))); + } } }); diff --git a/test/syscalls/linux/socket_ip_tcp_generic.cc b/test/syscalls/linux/socket_ip_tcp_generic.cc index 57ce8e169..27779e47c 100644 --- a/test/syscalls/linux/socket_ip_tcp_generic.cc +++ b/test/syscalls/linux/socket_ip_tcp_generic.cc @@ -24,6 +24,7 @@ #include <sys/un.h> #include "gtest/gtest.h" +#include "absl/memory/memory.h" #include "absl/time/clock.h" #include "absl/time/time.h" #include "test/syscalls/linux/socket_test_util.h" @@ -875,5 +876,37 @@ TEST_P(TCPSocketPairTest, SetTCPUserTimeoutAboveZero) { EXPECT_EQ(get, kAbove); } +TEST_P(TCPSocketPairTest, TCPResetDuringClose_NoRandomSave) { + DisableSave ds; // Too many syscalls. + constexpr int kThreadCount = 1000; + std::unique_ptr<ScopedThread> instances[kThreadCount]; + for (int i = 0; i < kThreadCount; i++) { + instances[i] = absl::make_unique<ScopedThread>([&]() { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + ScopedThread t([&]() { + // Close one end to trigger sending of a FIN. + struct pollfd poll_fd = {sockets->second_fd(), POLLIN | POLLHUP, 0}; + // Wait up to 20 seconds for the data. + constexpr int kPollTimeoutMs = 20000; + ASSERT_THAT(RetryEINTR(poll)(&poll_fd, 1, kPollTimeoutMs), + SyscallSucceedsWithValue(1)); + ASSERT_THAT(close(sockets->release_second_fd()), SyscallSucceeds()); + }); + + // Send some data then close. + constexpr char kStr[] = "abc"; + ASSERT_THAT(write(sockets->first_fd(), kStr, 3), + SyscallSucceedsWithValue(3)); + absl::SleepFor(absl::Milliseconds(10)); + ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds()); + t.Join(); + }); + } + for (int i = 0; i < kThreadCount; i++) { + instances[i]->Join(); + } +} + } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_tcp_generic_loopback.cc b/test/syscalls/linux/socket_ip_tcp_generic_loopback.cc index d11f7cc23..4e79d21f4 100644 --- a/test/syscalls/linux/socket_ip_tcp_generic_loopback.cc +++ b/test/syscalls/linux/socket_ip_tcp_generic_loopback.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVecToVec<SocketPairKind>( @@ -39,5 +40,6 @@ INSTANTIATE_TEST_SUITE_P( AllTCPSockets, TCPSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_tcp_loopback_blocking.cc b/test/syscalls/linux/socket_ip_tcp_loopback_blocking.cc index fcd20102f..f996b93d2 100644 --- a/test/syscalls/linux/socket_ip_tcp_loopback_blocking.cc +++ b/test/syscalls/linux/socket_ip_tcp_loopback_blocking.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVecToVec<SocketPairKind>( @@ -39,5 +40,6 @@ INSTANTIATE_TEST_SUITE_P( BlockingTCPSockets, BlockingStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_tcp_loopback_nonblock.cc b/test/syscalls/linux/socket_ip_tcp_loopback_nonblock.cc index 63a05b799..ffa377210 100644 --- a/test/syscalls/linux/socket_ip_tcp_loopback_nonblock.cc +++ b/test/syscalls/linux/socket_ip_tcp_loopback_nonblock.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVecToVec<SocketPairKind>( @@ -38,5 +39,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingTCPSockets, NonBlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_udp_generic.cc b/test/syscalls/linux/socket_ip_udp_generic.cc index 66eb68857..53290bed7 100644 --- a/test/syscalls/linux/socket_ip_udp_generic.cc +++ b/test/syscalls/linux/socket_ip_udp_generic.cc @@ -209,6 +209,46 @@ TEST_P(UDPSocketPairTest, SetMulticastLoopChar) { EXPECT_EQ(get, kSockOptOn); } +// Ensure that Receiving TOS is off by default. +TEST_P(UDPSocketPairTest, RecvTosDefault) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + int get = -1; + socklen_t get_len = sizeof(get); + ASSERT_THAT( + getsockopt(sockets->first_fd(), IPPROTO_IP, IP_RECVTOS, &get, &get_len), + SyscallSucceedsWithValue(0)); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, kSockOptOff); +} + +// Test that setting and getting IP_RECVTOS works as expected. +TEST_P(UDPSocketPairTest, SetRecvTos) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_RECVTOS, + &kSockOptOff, sizeof(kSockOptOff)), + SyscallSucceeds()); + + int get = -1; + socklen_t get_len = sizeof(get); + ASSERT_THAT( + getsockopt(sockets->first_fd(), IPPROTO_IP, IP_RECVTOS, &get, &get_len), + SyscallSucceedsWithValue(0)); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, kSockOptOff); + + ASSERT_THAT(setsockopt(sockets->first_fd(), IPPROTO_IP, IP_RECVTOS, + &kSockOptOn, sizeof(kSockOptOn)), + SyscallSucceeds()); + + ASSERT_THAT( + getsockopt(sockets->first_fd(), IPPROTO_IP, IP_RECVTOS, &get, &get_len), + SyscallSucceedsWithValue(0)); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, kSockOptOn); +} + TEST_P(UDPSocketPairTest, ReuseAddrDefault) { auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); diff --git a/test/syscalls/linux/socket_ip_udp_loopback.cc b/test/syscalls/linux/socket_ip_udp_loopback.cc index 1df74a348..c7fa44884 100644 --- a/test/syscalls/linux/socket_ip_udp_loopback.cc +++ b/test/syscalls/linux/socket_ip_udp_loopback.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return { @@ -44,5 +45,6 @@ INSTANTIATE_TEST_SUITE_P( AllUDPSockets, UDPSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_udp_loopback_blocking.cc b/test/syscalls/linux/socket_ip_udp_loopback_blocking.cc index 1e259efa7..d6925a8df 100644 --- a/test/syscalls/linux/socket_ip_udp_loopback_blocking.cc +++ b/test/syscalls/linux/socket_ip_udp_loopback_blocking.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return { @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( BlockingUDPSockets, BlockingNonStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_udp_loopback_nonblock.cc b/test/syscalls/linux/socket_ip_udp_loopback_nonblock.cc index 74cbd326d..d675eddc6 100644 --- a/test/syscalls/linux/socket_ip_udp_loopback_nonblock.cc +++ b/test/syscalls/linux/socket_ip_udp_loopback_nonblock.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return { @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingUDPSockets, NonBlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_ip_unbound.cc b/test/syscalls/linux/socket_ip_unbound.cc index b6754111f..ca597e267 100644 --- a/test/syscalls/linux/socket_ip_unbound.cc +++ b/test/syscalls/linux/socket_ip_unbound.cc @@ -129,6 +129,7 @@ TEST_P(IPUnboundSocketTest, InvalidNegativeTtl) { struct TOSOption { int level; int option; + int cmsg_level; }; constexpr int INET_ECN_MASK = 3; @@ -139,10 +140,12 @@ static TOSOption GetTOSOption(int domain) { case AF_INET: opt.level = IPPROTO_IP; opt.option = IP_TOS; + opt.cmsg_level = SOL_IP; break; case AF_INET6: opt.level = IPPROTO_IPV6; opt.option = IPV6_TCLASS; + opt.cmsg_level = SOL_IPV6; break; } return opt; @@ -386,6 +389,36 @@ TEST_P(IPUnboundSocketTest, NullTOS) { SyscallFailsWithErrno(EFAULT)); } +TEST_P(IPUnboundSocketTest, InsufficientBufferTOS) { + SKIP_IF(GetParam().protocol == IPPROTO_TCP); + + auto socket = ASSERT_NO_ERRNO_AND_VALUE(NewSocket()); + TOSOption t = GetTOSOption(GetParam().domain); + + in_addr addr4; + in6_addr addr6; + ASSERT_THAT(inet_pton(AF_INET, "127.0.0.1", &addr4), ::testing::Eq(1)); + ASSERT_THAT(inet_pton(AF_INET6, "fe80::", &addr6), ::testing::Eq(1)); + + cmsghdr cmsg = {}; + cmsg.cmsg_len = sizeof(cmsg); + cmsg.cmsg_level = t.cmsg_level; + cmsg.cmsg_type = t.option; + + msghdr msg = {}; + msg.msg_control = &cmsg; + msg.msg_controllen = sizeof(cmsg); + if (GetParam().domain == AF_INET) { + msg.msg_name = &addr4; + msg.msg_namelen = sizeof(addr4); + } else { + msg.msg_name = &addr6; + msg.msg_namelen = sizeof(addr6); + } + + EXPECT_THAT(sendmsg(socket->get(), &msg, 0), SyscallFailsWithErrno(EINVAL)); +} + INSTANTIATE_TEST_SUITE_P( IPUnboundSockets, IPUnboundSocketTest, ::testing::ValuesIn(VecCat<SocketKind>(VecCat<SocketKind>( diff --git a/test/syscalls/linux/socket_netdevice.cc b/test/syscalls/linux/socket_netdevice.cc index 405dbbd73..15d4b85a7 100644 --- a/test/syscalls/linux/socket_netdevice.cc +++ b/test/syscalls/linux/socket_netdevice.cc @@ -91,7 +91,7 @@ TEST(NetdeviceTest, Netmask) { int prefixlen = -1; ASSERT_NO_ERRNO(NetlinkRequestResponse( fd, &req, sizeof(req), - [&](const struct nlmsghdr *hdr) { + [&](const struct nlmsghdr* hdr) { EXPECT_THAT(hdr->nlmsg_type, AnyOf(Eq(RTM_NEWADDR), Eq(NLMSG_DONE))); EXPECT_TRUE((hdr->nlmsg_flags & NLM_F_MULTI) == NLM_F_MULTI) @@ -107,8 +107,8 @@ TEST(NetdeviceTest, Netmask) { // RTM_NEWADDR contains at least the header and ifaddrmsg. EXPECT_GE(hdr->nlmsg_len, sizeof(*hdr) + sizeof(struct ifaddrmsg)); - struct ifaddrmsg *ifaddrmsg = - reinterpret_cast<struct ifaddrmsg *>(NLMSG_DATA(hdr)); + struct ifaddrmsg* ifaddrmsg = + reinterpret_cast<struct ifaddrmsg*>(NLMSG_DATA(hdr)); if (ifaddrmsg->ifa_index == static_cast<uint32_t>(ifr.ifr_ifindex) && ifaddrmsg->ifa_family == AF_INET) { prefixlen = ifaddrmsg->ifa_prefixlen; @@ -127,8 +127,8 @@ TEST(NetdeviceTest, Netmask) { snprintf(ifr.ifr_name, IFNAMSIZ, "lo"); ASSERT_THAT(ioctl(sock.get(), SIOCGIFNETMASK, &ifr), SyscallSucceeds()); EXPECT_EQ(ifr.ifr_netmask.sa_family, AF_INET); - struct sockaddr_in *sin = - reinterpret_cast<struct sockaddr_in *>(&ifr.ifr_netmask); + struct sockaddr_in* sin = + reinterpret_cast<struct sockaddr_in*>(&ifr.ifr_netmask); EXPECT_EQ(sin->sin_addr.s_addr, mask); } diff --git a/test/syscalls/linux/socket_netlink_route.cc b/test/syscalls/linux/socket_netlink_route.cc index ef567f512..1e28e658d 100644 --- a/test/syscalls/linux/socket_netlink_route.cc +++ b/test/syscalls/linux/socket_netlink_route.cc @@ -442,6 +442,90 @@ TEST(NetlinkRouteTest, GetRouteDump) { EXPECT_TRUE(dstFound); } +// GetRouteRequest tests a RTM_GETROUTE request with RTM_F_LOOKUP_TABLE flag. +TEST(NetlinkRouteTest, GetRouteRequest) { + FileDescriptor fd = + ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket(NETLINK_ROUTE)); + uint32_t port = ASSERT_NO_ERRNO_AND_VALUE(NetlinkPortID(fd.get())); + + struct __attribute__((__packed__)) request { + struct nlmsghdr hdr; + struct rtmsg rtm; + struct nlattr nla; + struct in_addr sin_addr; + }; + + constexpr uint32_t kSeq = 12345; + + struct request req = {}; + req.hdr.nlmsg_len = sizeof(req); + req.hdr.nlmsg_type = RTM_GETROUTE; + req.hdr.nlmsg_flags = NLM_F_REQUEST; + req.hdr.nlmsg_seq = kSeq; + + req.rtm.rtm_family = AF_INET; + req.rtm.rtm_dst_len = 32; + req.rtm.rtm_src_len = 0; + req.rtm.rtm_tos = 0; + req.rtm.rtm_table = RT_TABLE_UNSPEC; + req.rtm.rtm_protocol = RTPROT_UNSPEC; + req.rtm.rtm_scope = RT_SCOPE_UNIVERSE; + req.rtm.rtm_type = RTN_UNSPEC; + req.rtm.rtm_flags = RTM_F_LOOKUP_TABLE; + + req.nla.nla_len = 8; + req.nla.nla_type = RTA_DST; + inet_aton("127.0.0.2", &req.sin_addr); + + bool rtDstFound = false; + ASSERT_NO_ERRNO(NetlinkRequestResponseSingle( + fd, &req, sizeof(req), [&](const struct nlmsghdr* hdr) { + // Validate the reponse to RTM_GETROUTE request with RTM_F_LOOKUP_TABLE + // flag. + EXPECT_THAT(hdr->nlmsg_type, RTM_NEWROUTE); + + EXPECT_TRUE(hdr->nlmsg_flags == 0) << std::hex << hdr->nlmsg_flags; + + EXPECT_EQ(hdr->nlmsg_seq, kSeq); + EXPECT_EQ(hdr->nlmsg_pid, port); + + // RTM_NEWROUTE contains at least the header and rtmsg. + ASSERT_GE(hdr->nlmsg_len, NLMSG_SPACE(sizeof(struct rtmsg))); + const struct rtmsg* msg = + reinterpret_cast<const struct rtmsg*>(NLMSG_DATA(hdr)); + + // NOTE: rtmsg fields are char fields. + std::cout << "Found route table=" << static_cast<int>(msg->rtm_table) + << ", protocol=" << static_cast<int>(msg->rtm_protocol) + << ", scope=" << static_cast<int>(msg->rtm_scope) + << ", type=" << static_cast<int>(msg->rtm_type); + + EXPECT_EQ(msg->rtm_family, AF_INET); + EXPECT_EQ(msg->rtm_dst_len, 32); + EXPECT_TRUE((msg->rtm_flags & RTM_F_CLONED) == RTM_F_CLONED) + << std::hex << msg->rtm_flags; + + int len = RTM_PAYLOAD(hdr); + std::cout << ", len=" << len; + for (struct rtattr* attr = RTM_RTA(msg); RTA_OK(attr, len); + attr = RTA_NEXT(attr, len)) { + if (attr->rta_type == RTA_DST) { + char address[INET_ADDRSTRLEN] = {}; + inet_ntop(AF_INET, RTA_DATA(attr), address, sizeof(address)); + std::cout << ", dst=" << address; + rtDstFound = true; + } else if (attr->rta_type == RTA_OIF) { + const char* oif = reinterpret_cast<const char*>(RTA_DATA(attr)); + std::cout << ", oif=" << oif; + } + } + + std::cout << std::endl; + })); + // Found RTA_DST for RTM_F_LOOKUP_TABLE. + EXPECT_TRUE(rtDstFound); +} + // RecvmsgTrunc tests the recvmsg MSG_TRUNC flag with zero length output // buffer. MSG_TRUNC with a zero length buffer should consume subsequent // messages off the socket. diff --git a/test/syscalls/linux/socket_netlink_util.cc b/test/syscalls/linux/socket_netlink_util.cc index 723f5d728..cd2212a1a 100644 --- a/test/syscalls/linux/socket_netlink_util.cc +++ b/test/syscalls/linux/socket_netlink_util.cc @@ -108,5 +108,43 @@ PosixError NetlinkRequestResponse( return NoError(); } +PosixError NetlinkRequestResponseSingle( + const FileDescriptor& fd, void* request, size_t len, + const std::function<void(const struct nlmsghdr* hdr)>& fn) { + struct iovec iov = {}; + iov.iov_base = request; + iov.iov_len = len; + + struct msghdr msg = {}; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + // No destination required; it defaults to pid 0, the kernel. + + RETURN_ERROR_IF_SYSCALL_FAIL(RetryEINTR(sendmsg)(fd.get(), &msg, 0)); + + constexpr size_t kBufferSize = 4096; + std::vector<char> buf(kBufferSize); + iov.iov_base = buf.data(); + iov.iov_len = buf.size(); + + int ret; + RETURN_ERROR_IF_SYSCALL_FAIL(ret = RetryEINTR(recvmsg)(fd.get(), &msg, 0)); + + // We don't bother with the complexity of dealing with truncated messages. + // We must allocate a large enough buffer up front. + if ((msg.msg_flags & MSG_TRUNC) == MSG_TRUNC) { + return PosixError( + EIO, + absl::StrCat("Received truncated message with flags: ", msg.msg_flags)); + } + + for (struct nlmsghdr* hdr = reinterpret_cast<struct nlmsghdr*>(buf.data()); + NLMSG_OK(hdr, ret); hdr = NLMSG_NEXT(hdr, ret)) { + fn(hdr); + } + + return NoError(); +} + } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_netlink_util.h b/test/syscalls/linux/socket_netlink_util.h index 76e772c48..3678c0599 100644 --- a/test/syscalls/linux/socket_netlink_util.h +++ b/test/syscalls/linux/socket_netlink_util.h @@ -32,12 +32,21 @@ PosixErrorOr<FileDescriptor> NetlinkBoundSocket(int protocol); // Returns the port ID of the passed socket. PosixErrorOr<uint32_t> NetlinkPortID(int fd); -// Send the passed request and call fn will all response netlink messages. +// Send the passed request and call fn on all response netlink messages. +// +// To be used on requests with NLM_F_MULTI reponses. PosixError NetlinkRequestResponse( const FileDescriptor& fd, void* request, size_t len, const std::function<void(const struct nlmsghdr* hdr)>& fn, bool expect_nlmsgerr); +// Send the passed request and call fn on all response netlink messages. +// +// To be used on requests without NLM_F_MULTI reponses. +PosixError NetlinkRequestResponseSingle( + const FileDescriptor& fd, void* request, size_t len, + const std::function<void(const struct nlmsghdr* hdr)>& fn); + } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_non_stream.cc b/test/syscalls/linux/socket_non_stream.cc index d91c5ed39..c61817f14 100644 --- a/test/syscalls/linux/socket_non_stream.cc +++ b/test/syscalls/linux/socket_non_stream.cc @@ -113,7 +113,7 @@ TEST_P(NonStreamSocketPairTest, RecvmsgMsghdrFlagMsgTrunc) { EXPECT_EQ(0, memcmp(received_data, sent_data, sizeof(received_data))); // Check that msghdr flags were updated. - EXPECT_EQ(msg.msg_flags, MSG_TRUNC); + EXPECT_EQ(msg.msg_flags & MSG_TRUNC, MSG_TRUNC); } // Stream sockets allow data sent with multiple sends to be peeked at in a @@ -193,7 +193,7 @@ TEST_P(NonStreamSocketPairTest, MsgTruncTruncationRecvmsgMsghdrFlagMsgTrunc) { EXPECT_EQ(0, memcmp(received_data, sent_data, sizeof(received_data))); // Check that msghdr flags were updated. - EXPECT_EQ(msg.msg_flags, MSG_TRUNC); + EXPECT_EQ(msg.msg_flags & MSG_TRUNC, MSG_TRUNC); } TEST_P(NonStreamSocketPairTest, MsgTruncSameSize) { @@ -224,5 +224,114 @@ TEST_P(NonStreamSocketPairTest, MsgTruncNotFull) { EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); } +// This test tests reading from a socket with MSG_TRUNC and a zero length +// receive buffer. The user should be able to get the message length. +TEST_P(NonStreamSocketPairTest, RecvmsgMsgTruncZeroLen) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + char sent_data[10]; + RandomizeBuffer(sent_data, sizeof(sent_data)); + ASSERT_THAT( + RetryEINTR(send)(sockets->first_fd(), sent_data, sizeof(sent_data), 0), + SyscallSucceedsWithValue(sizeof(sent_data))); + + // The receive buffer is of zero length. + char received_data[0] = {}; + + struct iovec iov; + iov.iov_base = received_data; + iov.iov_len = sizeof(received_data); + struct msghdr msg = {}; + msg.msg_flags = -1; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + // The syscall succeeds returning the full size of the message on the socket. + ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, MSG_TRUNC), + SyscallSucceedsWithValue(sizeof(sent_data))); + + // Check that MSG_TRUNC is set on msghdr flags. + EXPECT_EQ(msg.msg_flags & MSG_TRUNC, MSG_TRUNC); +} + +// This test tests reading from a socket with MSG_TRUNC | MSG_PEEK and a zero +// length receive buffer. The user should be able to get the message length +// without reading data off the socket. +TEST_P(NonStreamSocketPairTest, RecvmsgMsgTruncMsgPeekZeroLen) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + char sent_data[10]; + RandomizeBuffer(sent_data, sizeof(sent_data)); + ASSERT_THAT( + RetryEINTR(send)(sockets->first_fd(), sent_data, sizeof(sent_data), 0), + SyscallSucceedsWithValue(sizeof(sent_data))); + + // The receive buffer is of zero length. + char peek_data[0] = {}; + + struct iovec peek_iov; + peek_iov.iov_base = peek_data; + peek_iov.iov_len = sizeof(peek_data); + struct msghdr peek_msg = {}; + peek_msg.msg_flags = -1; + peek_msg.msg_iov = &peek_iov; + peek_msg.msg_iovlen = 1; + + // The syscall succeeds returning the full size of the message on the socket. + ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &peek_msg, + MSG_TRUNC | MSG_PEEK), + SyscallSucceedsWithValue(sizeof(sent_data))); + + // Check that MSG_TRUNC is set on msghdr flags because the receive buffer is + // smaller than the message size. + EXPECT_EQ(peek_msg.msg_flags & MSG_TRUNC, MSG_TRUNC); + + char received_data[sizeof(sent_data)] = {}; + + struct iovec received_iov; + received_iov.iov_base = received_data; + received_iov.iov_len = sizeof(received_data); + struct msghdr received_msg = {}; + received_msg.msg_flags = -1; + received_msg.msg_iov = &received_iov; + received_msg.msg_iovlen = 1; + + // Next we can read the actual data. + ASSERT_THAT( + RetryEINTR(recvmsg)(sockets->second_fd(), &received_msg, MSG_TRUNC), + SyscallSucceedsWithValue(sizeof(sent_data))); + + EXPECT_EQ(0, memcmp(sent_data, received_data, sizeof(sent_data))); + + // Check that MSG_TRUNC is not set on msghdr flags because we read the whole + // message. + EXPECT_EQ(received_msg.msg_flags & MSG_TRUNC, 0); +} + +// This test tests reading from a socket with MSG_TRUNC | MSG_PEEK and a zero +// length receive buffer and MSG_DONTWAIT. The user should be able to get an +// EAGAIN or EWOULDBLOCK error response. +TEST_P(NonStreamSocketPairTest, RecvmsgTruncPeekDontwaitZeroLen) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + // NOTE: We don't send any data on the socket. + + // The receive buffer is of zero length. + char peek_data[0] = {}; + + struct iovec peek_iov; + peek_iov.iov_base = peek_data; + peek_iov.iov_len = sizeof(peek_data); + struct msghdr peek_msg = {}; + peek_msg.msg_flags = -1; + peek_msg.msg_iov = &peek_iov; + peek_msg.msg_iovlen = 1; + + // recvmsg fails with EAGAIN because no data is available on the socket. + ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &peek_msg, + MSG_TRUNC | MSG_PEEK | MSG_DONTWAIT), + SyscallFailsWithErrno(EAGAIN)); +} + } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_non_stream_blocking.cc b/test/syscalls/linux/socket_non_stream_blocking.cc index 62d87c1af..b052f6e61 100644 --- a/test/syscalls/linux/socket_non_stream_blocking.cc +++ b/test/syscalls/linux/socket_non_stream_blocking.cc @@ -25,6 +25,7 @@ #include "test/syscalls/linux/socket_test_util.h" #include "test/syscalls/linux/unix_domain_socket_test_util.h" #include "test/util/test_util.h" +#include "test/util/thread_util.h" namespace gvisor { namespace testing { @@ -44,5 +45,41 @@ TEST_P(BlockingNonStreamSocketPairTest, RecvLessThanBufferWaitAll) { SyscallSucceedsWithValue(sizeof(sent_data))); } +// This test tests reading from a socket with MSG_TRUNC | MSG_PEEK and a zero +// length receive buffer and MSG_DONTWAIT. The recvmsg call should block on +// reading the data. +TEST_P(BlockingNonStreamSocketPairTest, + RecvmsgTruncPeekDontwaitZeroLenBlocking) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + // NOTE: We don't initially send any data on the socket. + const int data_size = 10; + char sent_data[data_size]; + RandomizeBuffer(sent_data, data_size); + + // The receive buffer is of zero length. + char peek_data[0] = {}; + + struct iovec peek_iov; + peek_iov.iov_base = peek_data; + peek_iov.iov_len = sizeof(peek_data); + struct msghdr peek_msg = {}; + peek_msg.msg_flags = -1; + peek_msg.msg_iov = &peek_iov; + peek_msg.msg_iovlen = 1; + + ScopedThread t([&]() { + // The syscall succeeds returning the full size of the message on the + // socket. This should block until there is data on the socket. + ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &peek_msg, + MSG_TRUNC | MSG_PEEK), + SyscallSucceedsWithValue(data_size)); + }); + + absl::SleepFor(absl::Seconds(1)); + ASSERT_THAT(RetryEINTR(send)(sockets->first_fd(), sent_data, data_size, 0), + SyscallSucceedsWithValue(data_size)); +} + } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_stream.cc b/test/syscalls/linux/socket_stream.cc index 346443f96..6522b2e01 100644 --- a/test/syscalls/linux/socket_stream.cc +++ b/test/syscalls/linux/socket_stream.cc @@ -104,7 +104,60 @@ TEST_P(StreamSocketPairTest, RecvmsgMsghdrFlagsNoMsgTrunc) { EXPECT_EQ(0, memcmp(received_data, sent_data, sizeof(received_data))); // Check that msghdr flags were cleared (MSG_TRUNC was not set). - EXPECT_EQ(msg.msg_flags, 0); + ASSERT_EQ(msg.msg_flags & MSG_TRUNC, 0); +} + +TEST_P(StreamSocketPairTest, RecvmsgTruncZeroLen) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + char sent_data[10]; + RandomizeBuffer(sent_data, sizeof(sent_data)); + ASSERT_THAT( + RetryEINTR(send)(sockets->first_fd(), sent_data, sizeof(sent_data), 0), + SyscallSucceedsWithValue(sizeof(sent_data))); + + char received_data[0] = {}; + + struct iovec iov; + iov.iov_base = received_data; + iov.iov_len = sizeof(received_data); + struct msghdr msg = {}; + msg.msg_flags = -1; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + ASSERT_THAT(RetryEINTR(recvmsg)(sockets->second_fd(), &msg, MSG_TRUNC), + SyscallSucceedsWithValue(0)); + + // Check that msghdr flags were cleared (MSG_TRUNC was not set). + ASSERT_EQ(msg.msg_flags & MSG_TRUNC, 0); +} + +TEST_P(StreamSocketPairTest, RecvmsgTruncPeekZeroLen) { + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + char sent_data[10]; + RandomizeBuffer(sent_data, sizeof(sent_data)); + ASSERT_THAT( + RetryEINTR(send)(sockets->first_fd(), sent_data, sizeof(sent_data), 0), + SyscallSucceedsWithValue(sizeof(sent_data))); + + char received_data[0] = {}; + + struct iovec iov; + iov.iov_base = received_data; + iov.iov_len = sizeof(received_data); + struct msghdr msg = {}; + msg.msg_flags = -1; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + ASSERT_THAT( + RetryEINTR(recvmsg)(sockets->second_fd(), &msg, MSG_TRUNC | MSG_PEEK), + SyscallSucceedsWithValue(0)); + + // Check that msghdr flags were cleared (MSG_TRUNC was not set). + ASSERT_EQ(msg.msg_flags & MSG_TRUNC, 0); } TEST_P(StreamSocketPairTest, MsgTrunc) { diff --git a/test/syscalls/linux/socket_stream_blocking.cc b/test/syscalls/linux/socket_stream_blocking.cc index e9cc082bf..538ee2268 100644 --- a/test/syscalls/linux/socket_stream_blocking.cc +++ b/test/syscalls/linux/socket_stream_blocking.cc @@ -32,38 +32,38 @@ namespace gvisor { namespace testing { TEST_P(BlockingStreamSocketPairTest, BlockPartialWriteClosed) { - // FIXME(b/35921550): gVisor doesn't support SO_SNDBUF on UDS, nor does it - // enforce any limit; it will write arbitrary amounts of data without - // blocking. - SKIP_IF(IsRunningOnGvisor()); - - auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); - - int buffer_size; - socklen_t length = sizeof(buffer_size); - ASSERT_THAT(getsockopt(sockets->first_fd(), SOL_SOCKET, SO_SNDBUF, - &buffer_size, &length), - SyscallSucceeds()); - - int wfd = sockets->first_fd(); - ScopedThread t([wfd, buffer_size]() { - std::vector<char> buf(2 * buffer_size); - // Write more than fits in the buffer. Blocks then returns partial write - // when the other end is closed. The next call returns EPIPE. - // - // N.B. writes occur in chunks, so we may see less than buffer_size from - // the first call. - ASSERT_THAT(write(wfd, buf.data(), buf.size()), - SyscallSucceedsWithValue(::testing::Gt(0))); - ASSERT_THAT(write(wfd, buf.data(), buf.size()), - ::testing::AnyOf(SyscallFailsWithErrno(EPIPE), - SyscallFailsWithErrno(ECONNRESET))); - }); - - // Leave time for write to become blocked. - absl::SleepFor(absl::Seconds(1)); - - ASSERT_THAT(close(sockets->release_second_fd()), SyscallSucceeds()); + // FIXME(b/35921550): gVisor doesn't support SO_SNDBUF on UDS, nor does it + // enforce any limit; it will write arbitrary amounts of data without + // blocking. + SKIP_IF(IsRunningOnGvisor()); + + auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair()); + + int buffer_size; + socklen_t length = sizeof(buffer_size); + ASSERT_THAT(getsockopt(sockets->first_fd(), SOL_SOCKET, SO_SNDBUF, + &buffer_size, &length), + SyscallSucceeds()); + + int wfd = sockets->first_fd(); + ScopedThread t([wfd, buffer_size]() { + std::vector<char> buf(2 * buffer_size); + // Write more than fits in the buffer. Blocks then returns partial write + // when the other end is closed. The next call returns EPIPE. + // + // N.B. writes occur in chunks, so we may see less than buffer_size from + // the first call. + ASSERT_THAT(write(wfd, buf.data(), buf.size()), + SyscallSucceedsWithValue(::testing::Gt(0))); + ASSERT_THAT(write(wfd, buf.data(), buf.size()), + ::testing::AnyOf(SyscallFailsWithErrno(EPIPE), + SyscallFailsWithErrno(ECONNRESET))); + }); + + // Leave time for write to become blocked. + absl::SleepFor(absl::Seconds(1)); + + ASSERT_THAT(close(sockets->release_second_fd()), SyscallSucceeds()); } // Random save may interrupt the call to sendmsg() in SendLargeSendMsg(), diff --git a/test/syscalls/linux/socket_unix_abstract_nonblock.cc b/test/syscalls/linux/socket_unix_abstract_nonblock.cc index be31ab2a7..8bef76b67 100644 --- a/test/syscalls/linux/socket_unix_abstract_nonblock.cc +++ b/test/syscalls/linux/socket_unix_abstract_nonblock.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingAbstractUnixSockets, NonBlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_blocking_local.cc b/test/syscalls/linux/socket_unix_blocking_local.cc index 6f84221b2..77cb8c6d6 100644 --- a/test/syscalls/linux/socket_unix_blocking_local.cc +++ b/test/syscalls/linux/socket_unix_blocking_local.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>( @@ -39,5 +40,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingUnixDomainSockets, BlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_dgram_local.cc b/test/syscalls/linux/socket_unix_dgram_local.cc index 9134fcdf7..31d2d5216 100644 --- a/test/syscalls/linux/socket_unix_dgram_local.cc +++ b/test/syscalls/linux/socket_unix_dgram_local.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>(VecCat<SocketPairKind>( @@ -52,5 +53,6 @@ INSTANTIATE_TEST_SUITE_P( DgramUnixSockets, NonStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_domain.cc b/test/syscalls/linux/socket_unix_domain.cc index fa3efc7f8..f7dff8b4d 100644 --- a/test/syscalls/linux/socket_unix_domain.cc +++ b/test/syscalls/linux/socket_unix_domain.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( AllUnixDomainSockets, AllSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_filesystem_nonblock.cc b/test/syscalls/linux/socket_unix_filesystem_nonblock.cc index 8ba7af971..6700b4d90 100644 --- a/test/syscalls/linux/socket_unix_filesystem_nonblock.cc +++ b/test/syscalls/linux/socket_unix_filesystem_nonblock.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingFilesystemUnixSockets, NonBlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_non_stream_blocking_local.cc b/test/syscalls/linux/socket_unix_non_stream_blocking_local.cc index 8855d5001..fddcdf1c5 100644 --- a/test/syscalls/linux/socket_unix_non_stream_blocking_local.cc +++ b/test/syscalls/linux/socket_unix_non_stream_blocking_local.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>( @@ -36,5 +37,6 @@ INSTANTIATE_TEST_SUITE_P( BlockingNonStreamUnixSockets, BlockingNonStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_pair.cc b/test/syscalls/linux/socket_unix_pair.cc index 411fb4518..85999db04 100644 --- a/test/syscalls/linux/socket_unix_pair.cc +++ b/test/syscalls/linux/socket_unix_pair.cc @@ -22,6 +22,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>(ApplyVec<SocketPairKind>( @@ -38,5 +39,6 @@ INSTANTIATE_TEST_SUITE_P( AllUnixDomainSockets, UnixSocketPairCmsgTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_pair_nonblock.cc b/test/syscalls/linux/socket_unix_pair_nonblock.cc index 3135d325f..281410a9a 100644 --- a/test/syscalls/linux/socket_unix_pair_nonblock.cc +++ b/test/syscalls/linux/socket_unix_pair_nonblock.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return ApplyVec<SocketPairKind>( @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingUnixSockets, NonBlockingSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_seqpacket_local.cc b/test/syscalls/linux/socket_unix_seqpacket_local.cc index dff75a532..69a5f150d 100644 --- a/test/syscalls/linux/socket_unix_seqpacket_local.cc +++ b/test/syscalls/linux/socket_unix_seqpacket_local.cc @@ -23,6 +23,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>(VecCat<SocketPairKind>( @@ -52,5 +53,6 @@ INSTANTIATE_TEST_SUITE_P( SeqpacketUnixSockets, UnixNonStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_stream_blocking_local.cc b/test/syscalls/linux/socket_unix_stream_blocking_local.cc index 08e579ba7..8429bd429 100644 --- a/test/syscalls/linux/socket_unix_stream_blocking_local.cc +++ b/test/syscalls/linux/socket_unix_stream_blocking_local.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return { @@ -34,5 +35,6 @@ INSTANTIATE_TEST_SUITE_P( BlockingStreamUnixSockets, BlockingStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_stream_local.cc b/test/syscalls/linux/socket_unix_stream_local.cc index 65eef1a81..a7e3449a9 100644 --- a/test/syscalls/linux/socket_unix_stream_local.cc +++ b/test/syscalls/linux/socket_unix_stream_local.cc @@ -21,6 +21,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return VecCat<SocketPairKind>( @@ -42,5 +43,6 @@ INSTANTIATE_TEST_SUITE_P( StreamUnixSockets, StreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/socket_unix_stream_nonblock_local.cc b/test/syscalls/linux/socket_unix_stream_nonblock_local.cc index 1936aa135..4b763c8e2 100644 --- a/test/syscalls/linux/socket_unix_stream_nonblock_local.cc +++ b/test/syscalls/linux/socket_unix_stream_nonblock_local.cc @@ -20,6 +20,7 @@ namespace gvisor { namespace testing { +namespace { std::vector<SocketPairKind> GetSocketPairs() { return { @@ -33,5 +34,6 @@ INSTANTIATE_TEST_SUITE_P( NonBlockingStreamUnixSockets, NonBlockingStreamSocketPairTest, ::testing::ValuesIn(IncludeReversals(GetSocketPairs()))); +} // namespace } // namespace testing } // namespace gvisor diff --git a/test/syscalls/linux/splice.cc b/test/syscalls/linux/splice.cc index 85232cb1f..faa1247f6 100644 --- a/test/syscalls/linux/splice.cc +++ b/test/syscalls/linux/splice.cc @@ -60,6 +60,62 @@ TEST(SpliceTest, TwoRegularFiles) { SyscallFailsWithErrno(EINVAL)); } +int memfd_create(const std::string& name, unsigned int flags) { + return syscall(__NR_memfd_create, name.c_str(), flags); +} + +TEST(SpliceTest, NegativeOffset) { + // Create a new pipe. + int fds[2]; + ASSERT_THAT(pipe(fds), SyscallSucceeds()); + const FileDescriptor rfd(fds[0]); + const FileDescriptor wfd(fds[1]); + + // Fill the pipe. + std::vector<char> buf(kPageSize); + RandomizeBuffer(buf.data(), buf.size()); + ASSERT_THAT(write(wfd.get(), buf.data(), buf.size()), + SyscallSucceedsWithValue(kPageSize)); + + // Open the output file as write only. + int fd; + EXPECT_THAT(fd = memfd_create("negative", 0), SyscallSucceeds()); + const FileDescriptor out_fd(fd); + + loff_t out_offset = 0xffffffffffffffffull; + constexpr int kSize = 2; + EXPECT_THAT(splice(rfd.get(), nullptr, out_fd.get(), &out_offset, kSize, 0), + SyscallFailsWithErrno(EINVAL)); +} + +// Write offset + size overflows int64. +// +// This is a regression test for b/148041624. +TEST(SpliceTest, WriteOverflow) { + // Create a new pipe. + int fds[2]; + ASSERT_THAT(pipe(fds), SyscallSucceeds()); + const FileDescriptor rfd(fds[0]); + const FileDescriptor wfd(fds[1]); + + // Fill the pipe. + std::vector<char> buf(kPageSize); + RandomizeBuffer(buf.data(), buf.size()); + ASSERT_THAT(write(wfd.get(), buf.data(), buf.size()), + SyscallSucceedsWithValue(kPageSize)); + + // Open the output file. + int fd; + EXPECT_THAT(fd = memfd_create("overflow", 0), SyscallSucceeds()); + const FileDescriptor out_fd(fd); + + // out_offset + kSize overflows INT64_MAX. + loff_t out_offset = 0x7ffffffffffffffeull; + constexpr int kSize = 3; + EXPECT_THAT(splice(rfd.get(), nullptr, out_fd.get(), &out_offset, kSize, 0), + SyscallFailsWithErrno(EINVAL)); +} + TEST(SpliceTest, SamePipe) { // Create a new pipe. int fds[2]; diff --git a/test/syscalls/linux/stat.cc b/test/syscalls/linux/stat.cc index 7a99f2636..c951ac3b3 100644 --- a/test/syscalls/linux/stat.cc +++ b/test/syscalls/linux/stat.cc @@ -601,8 +601,8 @@ struct kernel_statx { uint64_t __spare2[14]; }; -int statx(int dirfd, const char *pathname, int flags, unsigned int mask, - struct kernel_statx *statxbuf) { +int statx(int dirfd, const char* pathname, int flags, unsigned int mask, + struct kernel_statx* statxbuf) { return syscall(SYS_statx, dirfd, pathname, flags, mask, statxbuf); } diff --git a/test/syscalls/linux/tcp_socket.cc b/test/syscalls/linux/tcp_socket.cc index 6b99c021d..525ccbd88 100644 --- a/test/syscalls/linux/tcp_socket.cc +++ b/test/syscalls/linux/tcp_socket.cc @@ -814,6 +814,20 @@ TEST_P(TcpSocketTest, FullBuffer) { t_ = -1; } +TEST_P(TcpSocketTest, PollAfterShutdown) { + ScopedThread client_thread([this]() { + EXPECT_THAT(shutdown(s_, SHUT_WR), SyscallSucceedsWithValue(0)); + struct pollfd poll_fd = {s_, POLLIN | POLLERR | POLLHUP, 0}; + EXPECT_THAT(RetryEINTR(poll)(&poll_fd, 1, 10000), + SyscallSucceedsWithValue(1)); + }); + + EXPECT_THAT(shutdown(t_, SHUT_WR), SyscallSucceedsWithValue(0)); + struct pollfd poll_fd = {t_, POLLIN | POLLERR | POLLHUP, 0}; + EXPECT_THAT(RetryEINTR(poll)(&poll_fd, 1, 10000), + SyscallSucceedsWithValue(1)); +} + TEST_P(SimpleTcpSocketTest, NonBlockingConnectNoListener) { // Initialize address to the loopback one. sockaddr_storage addr = @@ -1272,6 +1286,59 @@ TEST_P(SimpleTcpSocketTest, SetTCPUserTimeout) { EXPECT_EQ(get, kTCPUserTimeout); } +TEST_P(SimpleTcpSocketTest, SetTCPDeferAcceptNeg) { + FileDescriptor s = + ASSERT_NO_ERRNO_AND_VALUE(Socket(GetParam(), SOCK_STREAM, IPPROTO_TCP)); + + // -ve TCP_DEFER_ACCEPT is same as setting it to zero. + constexpr int kNeg = -1; + EXPECT_THAT( + setsockopt(s.get(), IPPROTO_TCP, TCP_DEFER_ACCEPT, &kNeg, sizeof(kNeg)), + SyscallSucceeds()); + int get = -1; + socklen_t get_len = sizeof(get); + ASSERT_THAT( + getsockopt(s.get(), IPPROTO_TCP, TCP_USER_TIMEOUT, &get, &get_len), + SyscallSucceedsWithValue(0)); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, 0); +} + +TEST_P(SimpleTcpSocketTest, GetTCPDeferAcceptDefault) { + FileDescriptor s = + ASSERT_NO_ERRNO_AND_VALUE(Socket(GetParam(), SOCK_STREAM, IPPROTO_TCP)); + + int get = -1; + socklen_t get_len = sizeof(get); + ASSERT_THAT( + getsockopt(s.get(), IPPROTO_TCP, TCP_USER_TIMEOUT, &get, &get_len), + SyscallSucceedsWithValue(0)); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, 0); +} + +TEST_P(SimpleTcpSocketTest, SetTCPDeferAcceptGreaterThanZero) { + FileDescriptor s = + ASSERT_NO_ERRNO_AND_VALUE(Socket(GetParam(), SOCK_STREAM, IPPROTO_TCP)); + // kTCPDeferAccept is in seconds. + // NOTE: linux translates seconds to # of retries and back from + // #of retries to seconds. Which means only certain values + // translate back exactly. That's why we use 3 here, a value of + // 5 will result in us getting back 7 instead of 5 in the + // getsockopt. + constexpr int kTCPDeferAccept = 3; + ASSERT_THAT(setsockopt(s.get(), IPPROTO_TCP, TCP_DEFER_ACCEPT, + &kTCPDeferAccept, sizeof(kTCPDeferAccept)), + SyscallSucceeds()); + int get = -1; + socklen_t get_len = sizeof(get); + ASSERT_THAT( + getsockopt(s.get(), IPPROTO_TCP, TCP_DEFER_ACCEPT, &get, &get_len), + SyscallSucceeds()); + EXPECT_EQ(get_len, sizeof(get)); + EXPECT_EQ(get, kTCPDeferAccept); +} + INSTANTIATE_TEST_SUITE_P(AllInetTests, SimpleTcpSocketTest, ::testing::Values(AF_INET, AF_INET6)); diff --git a/test/syscalls/linux/udp_socket_errqueue_test_case.cc b/test/syscalls/linux/udp_socket_errqueue_test_case.cc index 147978f46..fcdba7279 100644 --- a/test/syscalls/linux/udp_socket_errqueue_test_case.cc +++ b/test/syscalls/linux/udp_socket_errqueue_test_case.cc @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -#include "test/syscalls/linux/udp_socket_test_cases.h" +#ifndef __fuchsia__ #include <arpa/inet.h> #include <fcntl.h> @@ -27,6 +27,7 @@ #include "absl/time/clock.h" #include "absl/time/time.h" #include "test/syscalls/linux/socket_test_util.h" +#include "test/syscalls/linux/udp_socket_test_cases.h" #include "test/syscalls/linux/unix_domain_socket_test_util.h" #include "test/util/test_util.h" #include "test/util/thread_util.h" @@ -52,3 +53,5 @@ TEST_P(UdpSocketTest, ErrorQueue) { } // namespace testing } // namespace gvisor + +#endif // __fuchsia__ diff --git a/test/syscalls/linux/udp_socket_test_cases.cc b/test/syscalls/linux/udp_socket_test_cases.cc index dc35c2f50..a2f6ef8cc 100644 --- a/test/syscalls/linux/udp_socket_test_cases.cc +++ b/test/syscalls/linux/udp_socket_test_cases.cc @@ -1349,8 +1349,9 @@ TEST_P(UdpSocketTest, TimestampIoctlPersistence) { // outgoing packets, and that a receiving socket with IP_RECVTOS or // IPV6_RECVTCLASS will create the corresponding control message. TEST_P(UdpSocketTest, SetAndReceiveTOS) { - // TODO(b/68320120): IP_RECVTOS/IPV6_RECVTCLASS not supported for netstack. - SKIP_IF(IsRunningOnGvisor() && !IsRunningWithHostinet()); + // TODO(b/144868438): IPV6_RECVTCLASS not supported for netstack. + SKIP_IF((GetParam() != AddressFamily::kIpv4) && IsRunningOnGvisor() && + !IsRunningWithHostinet()); ASSERT_THAT(bind(s_, addr_[0], addrlen_), SyscallSucceeds()); ASSERT_THAT(connect(t_, addr_[0], addrlen_), SyscallSucceeds()); @@ -1421,7 +1422,8 @@ TEST_P(UdpSocketTest, SetAndReceiveTOS) { // TOS byte on outgoing packets, and that a receiving socket with IP_RECVTOS or // IPV6_RECVTCLASS will create the corresponding control message. TEST_P(UdpSocketTest, SendAndReceiveTOS) { - // TODO(b/68320120): IP_RECVTOS/IPV6_RECVTCLASS not supported for netstack. + // TODO(b/144868438): IPV6_RECVTCLASS not supported for netstack. + // TODO(b/146661005): Setting TOS via cmsg not supported for netstack. SKIP_IF(IsRunningOnGvisor() && !IsRunningWithHostinet()); ASSERT_THAT(bind(s_, addr_[0], addrlen_), SyscallSucceeds()); ASSERT_THAT(connect(t_, addr_[0], addrlen_), SyscallSucceeds()); diff --git a/test/syscalls/linux/utimes.cc b/test/syscalls/linux/utimes.cc index 12b925a51..3a927a430 100644 --- a/test/syscalls/linux/utimes.cc +++ b/test/syscalls/linux/utimes.cc @@ -163,12 +163,12 @@ TEST(FutimesatTest, OnRelPath) { TEST(FutimesatTest, InvalidNsec) { auto f = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile()); struct timeval times[4][2] = {{ - {0, 1}, // Valid + {0, 1}, // Valid {1, static_cast<int64_t>(1e7)} // Invalid }, { {1, static_cast<int64_t>(1e7)}, // Invalid - {0, 1} // Valid + {0, 1} // Valid }, { {0, 1}, // Valid @@ -288,14 +288,15 @@ TEST(UtimeTest, ZeroAtimeandMtime) { TEST(UtimensatTest, InvalidNsec) { auto f = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile()); - struct timespec times[2][2] = {{ - {0, UTIME_OMIT}, // Valid - {2, static_cast<int64_t>(1e10)} // Invalid - }, - { - {2, static_cast<int64_t>(1e10)}, // Invalid - {0, UTIME_OMIT} // Valid - }}; + struct timespec times[2][2] = { + { + {0, UTIME_OMIT}, // Valid + {2, static_cast<int64_t>(1e10)} // Invalid + }, + { + {2, static_cast<int64_t>(1e10)}, // Invalid + {0, UTIME_OMIT} // Valid + }}; for (unsigned int i = 0; i < sizeof(times) / sizeof(times[0]); i++) { std::cout << "test:" << i << "\n"; diff --git a/test/syscalls/linux/xattr.cc b/test/syscalls/linux/xattr.cc index 75740238c..ab21d68c6 100644 --- a/test/syscalls/linux/xattr.cc +++ b/test/syscalls/linux/xattr.cc @@ -26,6 +26,7 @@ #include "gtest/gtest.h" #include "test/syscalls/linux/file_base.h" #include "test/util/capability_util.h" +#include "test/util/file_descriptor.h" #include "test/util/posix_error.h" #include "test/util/temp_path.h" #include "test/util/test_util.h" @@ -59,7 +60,8 @@ TEST_F(XattrTest, XattrLargeName) { std::string name = "user."; name += std::string(XATTR_NAME_MAX - name.length(), 'a'); - // TODO(b/127675828): Support setxattr and getxattr. + // An xattr should be whitelisted before it can be accessed--do not allow + // arbitrary xattrs to be read/written in gVisor. if (!IsRunningOnGvisor()) { EXPECT_THAT(setxattr(path, name.c_str(), nullptr, 0, /*flags=*/0), SyscallSucceeds()); @@ -83,59 +85,53 @@ TEST_F(XattrTest, XattrInvalidPrefix) { SyscallFailsWithErrno(EOPNOTSUPP)); } -TEST_F(XattrTest, XattrReadOnly) { +// Do not allow save/restore cycles after making the test file read-only, as +// the restore will fail to open it with r/w permissions. +TEST_F(XattrTest, XattrReadOnly_NoRandomSave) { // Drop capabilities that allow us to override file and directory permissions. ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false)); ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false)); const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; size_t size = sizeof(val); - // TODO(b/127675828): Support setxattr and getxattr. - if (!IsRunningOnGvisor()) { - EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), - SyscallSucceeds()); - } + EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallSucceeds()); + DisableSave ds; ASSERT_NO_ERRNO(testing::Chmod(test_file_name_, S_IRUSR)); EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallFailsWithErrno(EACCES)); - // TODO(b/127675828): Support setxattr and getxattr. - if (!IsRunningOnGvisor()) { - char buf = '-'; - EXPECT_THAT(getxattr(path, name, &buf, size), - SyscallSucceedsWithValue(size)); - EXPECT_EQ(buf, val); - } + char buf = '-'; + EXPECT_THAT(getxattr(path, name, &buf, size), SyscallSucceedsWithValue(size)); + EXPECT_EQ(buf, val); } -TEST_F(XattrTest, XattrWriteOnly) { +// Do not allow save/restore cycles after making the test file write-only, as +// the restore will fail to open it with r/w permissions. +TEST_F(XattrTest, XattrWriteOnly_NoRandomSave) { // Drop capabilities that allow us to override file and directory permissions. ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false)); ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false)); + DisableSave ds; ASSERT_NO_ERRNO(testing::Chmod(test_file_name_, S_IWUSR)); const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; size_t size = sizeof(val); - // TODO(b/127675828): Support setxattr and getxattr. - if (!IsRunningOnGvisor()) { - EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), - SyscallSucceeds()); - } + EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallSucceeds()); EXPECT_THAT(getxattr(path, name, nullptr, 0), SyscallFailsWithErrno(EACCES)); } TEST_F(XattrTest, XattrTrustedWithNonadmin) { - // TODO(b/127675828): Support setxattr and getxattr. + // TODO(b/148380782): Support setxattr and getxattr with "trusted" prefix. SKIP_IF(IsRunningOnGvisor()); SKIP_IF(ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN))); @@ -147,11 +143,8 @@ TEST_F(XattrTest, XattrTrustedWithNonadmin) { } TEST_F(XattrTest, XattrOnDirectory) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - TempPath dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir()); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(dir.path().c_str(), name, NULL, 0, /*flags=*/0), SyscallSucceeds()); EXPECT_THAT(getxattr(dir.path().c_str(), name, NULL, 0), @@ -159,13 +152,10 @@ TEST_F(XattrTest, XattrOnDirectory) { } TEST_F(XattrTest, XattrOnSymlink) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - TempPath dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir()); TempPath link = ASSERT_NO_ERRNO_AND_VALUE( TempPath::CreateSymlinkTo(dir.path(), test_file_name_)); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(link.path().c_str(), name, NULL, 0, /*flags=*/0), SyscallSucceeds()); EXPECT_THAT(getxattr(link.path().c_str(), name, NULL, 0), @@ -173,7 +163,7 @@ TEST_F(XattrTest, XattrOnSymlink) { } TEST_F(XattrTest, XattrOnInvalidFileTypes) { - char name[] = "user.abc"; + const char name[] = "user.test"; char char_device[] = "/dev/zero"; EXPECT_THAT(setxattr(char_device, name, NULL, 0, /*flags=*/0), @@ -191,11 +181,8 @@ TEST_F(XattrTest, XattrOnInvalidFileTypes) { } TEST_F(XattrTest, SetxattrSizeSmallerThanValue) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; std::vector<char> val = {'a', 'a'}; size_t size = 1; EXPECT_THAT(setxattr(path, name, val.data(), size, /*flags=*/0), @@ -209,11 +196,8 @@ TEST_F(XattrTest, SetxattrSizeSmallerThanValue) { } TEST_F(XattrTest, SetxattrZeroSize) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; EXPECT_THAT(setxattr(path, name, &val, 0, /*flags=*/0), SyscallSucceeds()); @@ -225,7 +209,7 @@ TEST_F(XattrTest, SetxattrZeroSize) { TEST_F(XattrTest, SetxattrSizeTooLarge) { const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; // Note that each particular fs implementation may stipulate a lower size // limit, in which case we actually may fail (e.g. error with ENOSPC) for @@ -235,43 +219,29 @@ TEST_F(XattrTest, SetxattrSizeTooLarge) { EXPECT_THAT(setxattr(path, name, val.data(), size, /*flags=*/0), SyscallFailsWithErrno(E2BIG)); - // TODO(b/127675828): Support setxattr and getxattr. - if (!IsRunningOnGvisor()) { - EXPECT_THAT(getxattr(path, name, nullptr, 0), - SyscallFailsWithErrno(ENODATA)); - } + EXPECT_THAT(getxattr(path, name, nullptr, 0), SyscallFailsWithErrno(ENODATA)); } TEST_F(XattrTest, SetxattrNullValueAndNonzeroSize) { const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(path, name, nullptr, 1, /*flags=*/0), SyscallFailsWithErrno(EFAULT)); - // TODO(b/127675828): Support setxattr and getxattr. - if (!IsRunningOnGvisor()) { - EXPECT_THAT(getxattr(path, name, nullptr, 0), - SyscallFailsWithErrno(ENODATA)); - } + EXPECT_THAT(getxattr(path, name, nullptr, 0), SyscallFailsWithErrno(ENODATA)); } TEST_F(XattrTest, SetxattrNullValueAndZeroSize) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(path, name, nullptr, 0, /*flags=*/0), SyscallSucceeds()); EXPECT_THAT(getxattr(path, name, nullptr, 0), SyscallSucceedsWithValue(0)); } TEST_F(XattrTest, SetxattrValueTooLargeButOKSize) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; std::vector<char> val(XATTR_SIZE_MAX + 1); std::fill(val.begin(), val.end(), 'a'); size_t size = 1; @@ -286,11 +256,8 @@ TEST_F(XattrTest, SetxattrValueTooLargeButOKSize) { } TEST_F(XattrTest, SetxattrReplaceWithSmaller) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; std::vector<char> val = {'a', 'a'}; EXPECT_THAT(setxattr(path, name, val.data(), 2, /*flags=*/0), SyscallSucceeds()); @@ -304,11 +271,8 @@ TEST_F(XattrTest, SetxattrReplaceWithSmaller) { } TEST_F(XattrTest, SetxattrReplaceWithLarger) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; std::vector<char> val = {'a', 'a'}; EXPECT_THAT(setxattr(path, name, val.data(), 1, /*flags=*/0), SyscallSucceeds()); @@ -321,11 +285,8 @@ TEST_F(XattrTest, SetxattrReplaceWithLarger) { } TEST_F(XattrTest, SetxattrCreateFlag) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(path, name, nullptr, 0, XATTR_CREATE), SyscallSucceeds()); EXPECT_THAT(setxattr(path, name, nullptr, 0, XATTR_CREATE), @@ -335,11 +296,8 @@ TEST_F(XattrTest, SetxattrCreateFlag) { } TEST_F(XattrTest, SetxattrReplaceFlag) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; EXPECT_THAT(setxattr(path, name, nullptr, 0, XATTR_REPLACE), SyscallFailsWithErrno(ENODATA)); EXPECT_THAT(setxattr(path, name, nullptr, 0, /*flags=*/0), SyscallSucceeds()); @@ -357,11 +315,8 @@ TEST_F(XattrTest, SetxattrInvalidFlags) { } TEST_F(XattrTest, Getxattr) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; int val = 1234; size_t size = sizeof(val); EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallSucceeds()); @@ -372,11 +327,8 @@ TEST_F(XattrTest, Getxattr) { } TEST_F(XattrTest, GetxattrSizeSmallerThanValue) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; std::vector<char> val = {'a', 'a'}; size_t size = val.size(); EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallSucceeds()); @@ -387,11 +339,8 @@ TEST_F(XattrTest, GetxattrSizeSmallerThanValue) { } TEST_F(XattrTest, GetxattrSizeLargerThanValue) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; EXPECT_THAT(setxattr(path, name, &val, 1, /*flags=*/0), SyscallSucceeds()); @@ -405,11 +354,8 @@ TEST_F(XattrTest, GetxattrSizeLargerThanValue) { } TEST_F(XattrTest, GetxattrZeroSize) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; EXPECT_THAT(setxattr(path, name, &val, sizeof(val), /*flags=*/0), SyscallSucceeds()); @@ -421,11 +367,8 @@ TEST_F(XattrTest, GetxattrZeroSize) { } TEST_F(XattrTest, GetxattrSizeTooLarge) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; EXPECT_THAT(setxattr(path, name, &val, sizeof(val), /*flags=*/0), SyscallSucceeds()); @@ -440,11 +383,8 @@ TEST_F(XattrTest, GetxattrSizeTooLarge) { } TEST_F(XattrTest, GetxattrNullValue) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; size_t size = sizeof(val); EXPECT_THAT(setxattr(path, name, &val, size, /*flags=*/0), SyscallSucceeds()); @@ -454,11 +394,8 @@ TEST_F(XattrTest, GetxattrNullValue) { } TEST_F(XattrTest, GetxattrNullValueAndZeroSize) { - // TODO(b/127675828): Support setxattr and getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - char name[] = "user.abc"; + const char name[] = "user.test"; char val = 'a'; size_t size = sizeof(val); // Set value with zero size. @@ -473,15 +410,51 @@ TEST_F(XattrTest, GetxattrNullValueAndZeroSize) { } TEST_F(XattrTest, GetxattrNonexistentName) { - // TODO(b/127675828): Support getxattr. - SKIP_IF(IsRunningOnGvisor()); - const char* path = test_file_name_.c_str(); - std::string name = "user.nonexistent"; - EXPECT_THAT(getxattr(path, name.c_str(), nullptr, 0), + const char name[] = "user.test"; + EXPECT_THAT(getxattr(path, name, nullptr, 0), SyscallFailsWithErrno(ENODATA)); +} + +TEST_F(XattrTest, LGetSetxattrOnSymlink) { + TempPath dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir()); + TempPath link = ASSERT_NO_ERRNO_AND_VALUE( + TempPath::CreateSymlinkTo(dir.path(), test_file_name_)); + + EXPECT_THAT(lsetxattr(link.path().c_str(), nullptr, nullptr, 0, 0), + SyscallFailsWithErrno(EPERM)); + EXPECT_THAT(lgetxattr(link.path().c_str(), nullptr, nullptr, 0), SyscallFailsWithErrno(ENODATA)); } +TEST_F(XattrTest, LGetSetxattrOnNonsymlink) { + const char* path = test_file_name_.c_str(); + const char name[] = "user.test"; + int val = 1234; + size_t size = sizeof(val); + EXPECT_THAT(lsetxattr(path, name, &val, size, /*flags=*/0), + SyscallSucceeds()); + + int buf = 0; + EXPECT_THAT(lgetxattr(path, name, &buf, size), + SyscallSucceedsWithValue(size)); + EXPECT_EQ(buf, val); +} + +TEST_F(XattrTest, FGetSetxattr) { + const FileDescriptor fd = + ASSERT_NO_ERRNO_AND_VALUE(Open(test_file_name_.c_str(), 0)); + const char name[] = "user.test"; + int val = 1234; + size_t size = sizeof(val); + EXPECT_THAT(fsetxattr(fd.get(), name, &val, size, /*flags=*/0), + SyscallSucceeds()); + + int buf = 0; + EXPECT_THAT(fgetxattr(fd.get(), name, &buf, size), + SyscallSucceedsWithValue(size)); + EXPECT_EQ(buf, val); +} + } // namespace } // namespace testing |