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// 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 <signal.h>
#include <sys/syscall.h>
#include "gtest/gtest.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
TEST(SigactionTest, GetLessThanOrEqualToZeroFails) {
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 = {};
ASSERT_THAT(sigaction(0, &act, nullptr), SyscallFailsWithErrno(EINVAL));
ASSERT_THAT(sigaction(0, &act, nullptr), SyscallFailsWithErrno(EINVAL));
}
TEST(SigactionTest, GetGreaterThanMaxFails) {
struct sigaction act = {};
ASSERT_THAT(sigaction(SIGRTMAX + 1, nullptr, &act),
SyscallFailsWithErrno(EINVAL));
}
TEST(SigactionTest, SetGreaterThanMaxFails) {
struct sigaction act = {};
ASSERT_THAT(sigaction(SIGRTMAX + 1, &act, nullptr),
SyscallFailsWithErrno(EINVAL));
}
TEST(SigactionTest, SetSigkillFails) {
struct sigaction act = {};
ASSERT_THAT(sigaction(SIGKILL, nullptr, &act), SyscallSucceeds());
ASSERT_THAT(sigaction(SIGKILL, &act, nullptr), SyscallFailsWithErrno(EINVAL));
}
TEST(SigactionTest, SetSigstopFails) {
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
} // namespace testing
} // namespace gvisor
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