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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.
#ifndef GVISOR_TEST_SYSCALLS_FILE_BASE_H_
#define GVISOR_TEST_SYSCALLS_FILE_BASE_H_
#include <arpa/inet.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <cstring>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/strings/string_view.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"
namespace gvisor {
namespace testing {
class FileTest : public ::testing::Test {
public:
void SetUp() override {
test_pipe_[0] = -1;
test_pipe_[1] = -1;
test_file_name_ = NewTempAbsPath();
test_file_fd_ = ASSERT_NO_ERRNO_AND_VALUE(
Open(test_file_name_, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR));
// FIXME(edahlgren): enable when mknod syscall is supported.
// test_fifo_name_ = NewTempAbsPath();
// ASSERT_THAT(mknod(test_fifo_name_.c_str()), S_IFIFO|0644, 0,
// SyscallSucceeds());
// ASSERT_THAT(test_fifo_[1] = open(test_fifo_name_.c_str(),
// O_WRONLY),
// SyscallSucceeds());
// ASSERT_THAT(test_fifo_[0] = open(test_fifo_name_.c_str(),
// O_RDONLY),
// SyscallSucceeds());
ASSERT_THAT(pipe(test_pipe_), SyscallSucceeds());
ASSERT_THAT(fcntl(test_pipe_[0], F_SETFL, O_NONBLOCK), SyscallSucceeds());
}
// CloseFile will allow the test to manually close the file descriptor.
void CloseFile() { test_file_fd_.reset(); }
// UnlinkFile will allow the test to manually unlink the file.
void UnlinkFile() {
if (!test_file_name_.empty()) {
EXPECT_THAT(unlink(test_file_name_.c_str()), SyscallSucceeds());
test_file_name_.clear();
}
}
// ClosePipes will allow the test to manually close the pipes.
void ClosePipes() {
if (test_pipe_[0] > 0) {
EXPECT_THAT(close(test_pipe_[0]), SyscallSucceeds());
}
if (test_pipe_[1] > 0) {
EXPECT_THAT(close(test_pipe_[1]), SyscallSucceeds());
}
test_pipe_[0] = -1;
test_pipe_[1] = -1;
}
void TearDown() override {
CloseFile();
UnlinkFile();
ClosePipes();
// FIXME(edahlgren): enable when mknod syscall is supported.
// close(test_fifo_[0]);
// close(test_fifo_[1]);
// unlink(test_fifo_name_.c_str());
}
std::string test_file_name_;
std::string test_fifo_name_;
FileDescriptor test_file_fd_;
int test_fifo_[2];
int test_pipe_[2];
};
class SocketTest : public ::testing::Test {
public:
void SetUp() override {
test_unix_stream_socket_[0] = -1;
test_unix_stream_socket_[1] = -1;
test_unix_dgram_socket_[0] = -1;
test_unix_dgram_socket_[1] = -1;
test_unix_seqpacket_socket_[0] = -1;
test_unix_seqpacket_socket_[1] = -1;
test_tcp_socket_[0] = -1;
test_tcp_socket_[1] = -1;
ASSERT_THAT(socketpair(AF_UNIX, SOCK_STREAM, 0, test_unix_stream_socket_),
SyscallSucceeds());
ASSERT_THAT(fcntl(test_unix_stream_socket_[0], F_SETFL, O_NONBLOCK),
SyscallSucceeds());
ASSERT_THAT(socketpair(AF_UNIX, SOCK_DGRAM, 0, test_unix_dgram_socket_),
SyscallSucceeds());
ASSERT_THAT(fcntl(test_unix_dgram_socket_[0], F_SETFL, O_NONBLOCK),
SyscallSucceeds());
ASSERT_THAT(
socketpair(AF_UNIX, SOCK_SEQPACKET, 0, test_unix_seqpacket_socket_),
SyscallSucceeds());
ASSERT_THAT(fcntl(test_unix_seqpacket_socket_[0], F_SETFL, O_NONBLOCK),
SyscallSucceeds());
}
void TearDown() override {
close(test_unix_stream_socket_[0]);
close(test_unix_stream_socket_[1]);
close(test_unix_dgram_socket_[0]);
close(test_unix_dgram_socket_[1]);
close(test_unix_seqpacket_socket_[0]);
close(test_unix_seqpacket_socket_[1]);
close(test_tcp_socket_[0]);
close(test_tcp_socket_[1]);
}
int test_unix_stream_socket_[2];
int test_unix_dgram_socket_[2];
int test_unix_seqpacket_socket_[2];
int test_tcp_socket_[2];
};
// MatchesStringLength checks that a tuple argument of (struct iovec *, int)
// corresponding to an iovec array and its length, contains data that matches
// the string length strlen.
MATCHER_P(MatchesStringLength, strlen, "") {
struct iovec* iovs = arg.first;
int niov = arg.second;
int offset = 0;
for (int i = 0; i < niov; i++) {
offset += iovs[i].iov_len;
}
if (offset != static_cast<int>(strlen)) {
*result_listener << offset;
return false;
}
return true;
}
// MatchesStringValue checks that a tuple argument of (struct iovec *, int)
// corresponding to an iovec array and its length, contains data that matches
// the string value str.
MATCHER_P(MatchesStringValue, str, "") {
struct iovec* iovs = arg.first;
int len = strlen(str);
int niov = arg.second;
int offset = 0;
for (int i = 0; i < niov; i++) {
struct iovec iov = iovs[i];
if (len < offset) {
*result_listener << "strlen " << len << " < offset " << offset;
return false;
}
if (strncmp(static_cast<char*>(iov.iov_base), &str[offset], iov.iov_len)) {
absl::string_view iovec_string(static_cast<char*>(iov.iov_base),
iov.iov_len);
*result_listener << iovec_string << " @offset " << offset;
return false;
}
offset += iov.iov_len;
}
return true;
}
} // namespace testing
} // namespace gvisor
#endif // GVISOR_TEST_SYSCALLS_FILE_BASE_H_
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