github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/test/fuse/linux/release_test.cc (about)

     1  // Copyright 2020 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  #include <errno.h>
    16  #include <fcntl.h>
    17  #include <linux/fuse.h>
    18  #include <sys/mount.h>
    19  #include <sys/stat.h>
    20  #include <sys/statfs.h>
    21  #include <sys/types.h>
    22  #include <unistd.h>
    23  
    24  #include <string>
    25  #include <vector>
    26  
    27  #include "gtest/gtest.h"
    28  #include "test/fuse/linux/fuse_base.h"
    29  #include "test/util/fuse_util.h"
    30  #include "test/util/test_util.h"
    31  
    32  namespace gvisor {
    33  namespace testing {
    34  
    35  namespace {
    36  
    37  class ReleaseTest : public FuseTest {
    38   protected:
    39    const std::string test_file_ = "test_file";
    40  };
    41  
    42  TEST_F(ReleaseTest, RegularFile) {
    43    const std::string test_file_path =
    44        JoinPath(mount_point_.path().c_str(), test_file_);
    45    SetServerInodeLookup(test_file_, S_IFREG | S_IRWXU | S_IRWXG | S_IRWXO);
    46  
    47    struct fuse_out_header out_header = {
    48        .len = sizeof(struct fuse_out_header) + sizeof(struct fuse_open_out),
    49    };
    50    struct fuse_open_out out_payload = {
    51        .fh = 1,
    52        .open_flags = O_RDWR,
    53    };
    54    auto iov_out = FuseGenerateIovecs(out_header, out_payload);
    55    SetServerResponse(FUSE_OPEN, iov_out);
    56    FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(Open(test_file_path, O_RDWR));
    57    SkipServerActualRequest();
    58    ASSERT_THAT(close(fd.release()), SyscallSucceeds());
    59  
    60    struct fuse_in_header in_header;
    61    struct fuse_release_in in_payload;
    62    auto iov_in = FuseGenerateIovecs(in_header, in_payload);
    63    GetServerActualRequest(iov_in);
    64  
    65    EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
    66    EXPECT_EQ(in_header.opcode, FUSE_RELEASE);
    67    EXPECT_EQ(in_payload.flags, O_RDWR);
    68    EXPECT_EQ(in_payload.fh, 1);
    69  }
    70  
    71  }  // namespace
    72  
    73  }  // namespace testing
    74  }  // namespace gvisor