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-rw-r--r--test/syscalls/linux/rtsignal.cc171
1 files changed, 0 insertions, 171 deletions
diff --git a/test/syscalls/linux/rtsignal.cc b/test/syscalls/linux/rtsignal.cc
deleted file mode 100644
index ed27e2566..000000000
--- a/test/syscalls/linux/rtsignal.cc
+++ /dev/null
@@ -1,171 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <cerrno>
-#include <csignal>
-
-#include "gtest/gtest.h"
-#include "test/util/cleanup.h"
-#include "test/util/logging.h"
-#include "test/util/posix_error.h"
-#include "test/util/signal_util.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-// saved_info is set by the handler.
-siginfo_t saved_info;
-
-// has_saved_info is set to true by the handler.
-volatile bool has_saved_info;
-
-void SigHandler(int sig, siginfo_t* info, void* context) {
- // Copy to the given info.
- saved_info = *info;
- has_saved_info = true;
-}
-
-void ClearSavedInfo() {
- // Clear the cached info.
- memset(&saved_info, 0, sizeof(saved_info));
- has_saved_info = false;
-}
-
-PosixErrorOr<Cleanup> SetupSignalHandler(int sig) {
- struct sigaction sa;
- sa.sa_sigaction = SigHandler;
- sigfillset(&sa.sa_mask);
- sa.sa_flags = SA_SIGINFO;
- return ScopedSigaction(sig, sa);
-}
-
-class RtSignalTest : public ::testing::Test {
- protected:
- void SetUp() override {
- action_cleanup_ = ASSERT_NO_ERRNO_AND_VALUE(SetupSignalHandler(SIGUSR1));
- mask_cleanup_ =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGUSR1));
- }
-
- void TearDown() override { ClearSavedInfo(); }
-
- private:
- Cleanup action_cleanup_;
- Cleanup mask_cleanup_;
-};
-
-static int rt_sigqueueinfo(pid_t tgid, int sig, siginfo_t* uinfo) {
- int ret;
- do {
- // NOTE(b/25434735): rt_sigqueueinfo(2) could return EAGAIN for RT signals.
- ret = syscall(SYS_rt_sigqueueinfo, tgid, sig, uinfo);
- } while (ret == -1 && errno == EAGAIN);
- return ret;
-}
-
-TEST_F(RtSignalTest, InvalidTID) {
- siginfo_t uinfo;
- // Depending on the kernel version, these calls may fail with
- // ESRCH (goobunutu machines) or EPERM (production machines). Thus,
- // the test simply ensures that they do fail.
- EXPECT_THAT(rt_sigqueueinfo(-1, SIGUSR1, &uinfo), SyscallFails());
- EXPECT_FALSE(has_saved_info);
- EXPECT_THAT(rt_sigqueueinfo(0, SIGUSR1, &uinfo), SyscallFails());
- EXPECT_FALSE(has_saved_info);
-}
-
-TEST_F(RtSignalTest, InvalidCodes) {
- siginfo_t uinfo;
-
- // We need a child for the code checks to apply. If the process is delivering
- // to itself, then it can use whatever codes it wants and they will go
- // through.
- pid_t child = fork();
- if (child == 0) {
- _exit(1);
- }
- ASSERT_THAT(child, SyscallSucceeds());
-
- // These are not allowed for child processes.
- uinfo.si_code = 0; // SI_USER.
- EXPECT_THAT(rt_sigqueueinfo(child, SIGUSR1, &uinfo),
- SyscallFailsWithErrno(EPERM));
- uinfo.si_code = 0x80; // SI_KERNEL.
- EXPECT_THAT(rt_sigqueueinfo(child, SIGUSR1, &uinfo),
- SyscallFailsWithErrno(EPERM));
- uinfo.si_code = -6; // SI_TKILL.
- EXPECT_THAT(rt_sigqueueinfo(child, SIGUSR1, &uinfo),
- SyscallFailsWithErrno(EPERM));
- uinfo.si_code = -1; // SI_QUEUE (allowed).
- EXPECT_THAT(rt_sigqueueinfo(child, SIGUSR1, &uinfo), SyscallSucceeds());
-
- // Join the child process.
- EXPECT_THAT(waitpid(child, nullptr, 0), SyscallSucceeds());
-}
-
-TEST_F(RtSignalTest, ValueDelivered) {
- siginfo_t uinfo;
- uinfo.si_code = -1; // SI_QUEUE (allowed).
- uinfo.si_errno = 0x1234;
-
- EXPECT_EQ(saved_info.si_errno, 0x0);
- EXPECT_THAT(rt_sigqueueinfo(getpid(), SIGUSR1, &uinfo), SyscallSucceeds());
- EXPECT_TRUE(has_saved_info);
- EXPECT_EQ(saved_info.si_errno, 0x1234);
-}
-
-TEST_F(RtSignalTest, SignoMatch) {
- auto action2_cleanup = ASSERT_NO_ERRNO_AND_VALUE(SetupSignalHandler(SIGUSR2));
- auto mask2_cleanup =
- ASSERT_NO_ERRNO_AND_VALUE(ScopedSignalMask(SIG_UNBLOCK, SIGUSR2));
-
- siginfo_t uinfo;
- uinfo.si_code = -1; // SI_QUEUE (allowed).
-
- EXPECT_THAT(rt_sigqueueinfo(getpid(), SIGUSR1, &uinfo), SyscallSucceeds());
- EXPECT_TRUE(has_saved_info);
- EXPECT_EQ(saved_info.si_signo, SIGUSR1);
-
- ClearSavedInfo();
-
- EXPECT_THAT(rt_sigqueueinfo(getpid(), SIGUSR2, &uinfo), SyscallSucceeds());
- EXPECT_TRUE(has_saved_info);
- EXPECT_EQ(saved_info.si_signo, SIGUSR2);
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor
-
-int main(int argc, char** argv) {
- // These tests depend on delivering SIGUSR1/2 to the main thread (so they can
- // synchronously check has_saved_info). Block these so that any other threads
- // created by TestInit will also have them blocked.
- sigset_t set;
- sigemptyset(&set);
- sigaddset(&set, SIGUSR1);
- sigaddset(&set, SIGUSR2);
- TEST_PCHECK(sigprocmask(SIG_BLOCK, &set, nullptr) == 0);
-
- gvisor::testing::TestInit(&argc, &argv);
- return gvisor::testing::RunAllTests();
-}