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authorIan Lewis <ianmlewis@gmail.com>2020-08-17 21:44:31 -0400
committerIan Lewis <ianmlewis@gmail.com>2020-08-17 21:44:31 -0400
commitac324f646ee3cb7955b0b45a7453aeb9671cbdf1 (patch)
tree0cbc5018e8807421d701d190dc20525726c7ca76 /test/fuse/linux/fuse_base.h
parent352ae1022ce19de28fc72e034cc469872ad79d06 (diff)
parent6d0c5803d557d453f15ac6f683697eeb46dab680 (diff)
Merge branch 'master' into ip-forwarding
- Merges aleksej-paschenko's with HEAD - Adds vfs2 support for ip_forward
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diff --git a/test/fuse/linux/fuse_base.h b/test/fuse/linux/fuse_base.h
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+// Copyright 2020 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_FUSE_FUSE_BASE_H_
+#define GVISOR_TEST_FUSE_FUSE_BASE_H_
+
+#include <linux/fuse.h>
+#include <sys/uio.h>
+
+#include <vector>
+
+#include "gtest/gtest.h"
+#include "test/util/posix_error.h"
+#include "test/util/temp_path.h"
+
+namespace gvisor {
+namespace testing {
+
+constexpr char kMountOpts[] = "rootmode=755,user_id=0,group_id=0";
+
+class FuseTest : public ::testing::Test {
+ public:
+ FuseTest() {
+ buf_.resize(FUSE_MIN_READ_BUFFER);
+ mem_in_.resize(FUSE_MIN_READ_BUFFER);
+ mem_out_.resize(FUSE_MIN_READ_BUFFER);
+ }
+ void SetUp() override;
+ void TearDown() override;
+
+ // CompareRequest is used by the FUSE server and should be implemented to
+ // compare different FUSE operations. It compares the actual FUSE input
+ // request with the expected one set by `SetExpected()`.
+ virtual bool CompareRequest(void* expected_mem, size_t expected_len,
+ void* real_mem, size_t real_len);
+
+ // SetExpected is called by the testing main thread. Writes a request-
+ // response pair into FUSE server's member variables via pipe.
+ void SetExpected(struct iovec* iov_in, int iov_in_cnt, struct iovec* iov_out,
+ int iov_out_cnt);
+
+ // WaitCompleted waits for FUSE server to complete its processing. It
+ // complains if the FUSE server responds failure during tests.
+ void WaitCompleted();
+
+ protected:
+ TempPath mount_point_;
+
+ private:
+ void MountFuse();
+ void UnmountFuse();
+
+ // ConsumeFuseInit is only used during FUSE server setup.
+ PosixError ConsumeFuseInit();
+
+ // ReceiveExpected is the FUSE server side's corresponding code of
+ // `SetExpected()`. Save the request-response pair into its memory.
+ void ReceiveExpected();
+
+ // MarkDone is used by the FUSE server to tell testing main if it's OK to
+ // proceed next command.
+ void MarkDone(bool success);
+
+ // FuseLoop is where the FUSE server stay until it is terminated.
+ void FuseLoop();
+
+ // SetUpFuseServer creates 2 pipes for communication and forks FUSE server.
+ void SetUpFuseServer();
+
+ // GetPayloadSize is a helper function to get the number of bytes of a
+ // specific FUSE operation struct.
+ size_t GetPayloadSize(uint32_t opcode, bool in);
+
+ int dev_fd_;
+ int set_expected_[2];
+ int done_[2];
+
+ std::vector<char> buf_;
+ std::vector<char> mem_in_;
+ std::vector<char> mem_out_;
+ ssize_t len_in_;
+ ssize_t len_out_;
+};
+
+} // namespace testing
+} // namespace gvisor
+
+#endif // GVISOR_TEST_FUSE_FUSE_BASE_H_