263 lines
7.0 KiB
C++
263 lines
7.0 KiB
C++
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2019 The FreeBSD Foundation
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*
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* This software was developed by BFF Storage Systems, LLC under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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extern "C" {
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#include <sys/wait.h>
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#include <fcntl.h>
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}
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#include "mockfs.hh"
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#include "utils.hh"
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using namespace testing;
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class Open: public FuseTest {
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public:
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/* Test an OK open of a file with the given flags */
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void test_ok(int os_flags, int fuse_flags) {
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const char FULLPATH[] = "mountpoint/some_file.txt";
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const char RELPATH[] = "some_file.txt";
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uint64_t ino = 42;
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int fd;
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FuseTest::expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_OPEN &&
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in.body.open.flags == (uint32_t)fuse_flags &&
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in.header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke(ReturnImmediate([](auto in __unused, auto& out) {
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out.header.len = sizeof(out.header);
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SET_OUT_HEADER_LEN(out, open);
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})));
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fd = open(FULLPATH, os_flags);
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EXPECT_LE(0, fd) << strerror(errno);
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/* Deliberately leak fd. close(2) will be tested in release.cc */
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}
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};
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/*
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* fusefs(5) does not support I/O on device nodes (neither does UFS). But it
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* shouldn't crash
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*/
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TEST_F(Open, chr)
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{
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const char FULLPATH[] = "mountpoint/zero";
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const char RELPATH[] = "zero";
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uint64_t ino = 42;
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EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
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.WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
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SET_OUT_HEADER_LEN(out, entry);
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out.body.entry.attr.mode = S_IFCHR | 0644;
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out.body.entry.nodeid = ino;
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out.body.entry.attr.nlink = 1;
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out.body.entry.attr_valid = UINT64_MAX;
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out.body.entry.attr.rdev = 44; /* /dev/zero's rdev */
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})));
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ASSERT_EQ(-1, open(FULLPATH, O_RDONLY));
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EXPECT_EQ(EOPNOTSUPP, errno);
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}
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/*
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* The fuse daemon fails the request with enoent. This usually indicates a
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* race condition: some other FUSE client removed the file in between when the
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* kernel checked for it with lookup and tried to open it
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*/
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TEST_F(Open, enoent)
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{
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const char FULLPATH[] = "mountpoint/some_file.txt";
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const char RELPATH[] = "some_file.txt";
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uint64_t ino = 42;
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expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_OPEN &&
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in.header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke(ReturnErrno(ENOENT)));
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EXPECT_NE(0, open(FULLPATH, O_RDONLY));
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EXPECT_EQ(ENOENT, errno);
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}
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/*
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* The daemon is responsible for checking file permissions (unless the
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* default_permissions mount option was used)
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*/
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TEST_F(Open, eperm)
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{
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const char FULLPATH[] = "mountpoint/some_file.txt";
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const char RELPATH[] = "some_file.txt";
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uint64_t ino = 42;
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expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_OPEN &&
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in.header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke(ReturnErrno(EPERM)));
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EXPECT_NE(0, open(FULLPATH, O_RDONLY));
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EXPECT_EQ(EPERM, errno);
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}
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/*
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* fusefs must issue multiple FUSE_OPEN operations if clients with different
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* credentials open the same file, even if they use the same mode. This is
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* necessary so that the daemon can validate each set of credentials.
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*/
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TEST_F(Open, multiple_creds)
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{
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const static char FULLPATH[] = "mountpoint/some_file.txt";
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const static char RELPATH[] = "some_file.txt";
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int fd1, status;
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const static uint64_t ino = 42;
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const static uint64_t fh0 = 100, fh1 = 200;
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/* Fork a child to open the file with different credentials */
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fork(false, &status, [&] {
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expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 2);
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_OPEN &&
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in.header.pid == (uint32_t)getpid() &&
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in.header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke(
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ReturnImmediate([](auto in __unused, auto& out) {
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out.body.open.fh = fh0;
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out.header.len = sizeof(out.header);
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SET_OUT_HEADER_LEN(out, open);
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})));
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in.header.opcode == FUSE_OPEN &&
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in.header.pid != (uint32_t)getpid() &&
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in.header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke(
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ReturnImmediate([](auto in __unused, auto& out) {
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out.body.open.fh = fh1;
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out.header.len = sizeof(out.header);
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SET_OUT_HEADER_LEN(out, open);
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})));
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expect_flush(ino, 2, ReturnErrno(0));
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expect_release(ino, fh0);
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expect_release(ino, fh1);
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fd1 = open(FULLPATH, O_RDONLY);
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EXPECT_LE(0, fd1) << strerror(errno);
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}, [] {
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int fd0;
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fd0 = open(FULLPATH, O_RDONLY);
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if (fd0 < 0) {
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perror("open");
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return(1);
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}
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return 0;
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}
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);
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ASSERT_EQ(0, WEXITSTATUS(status));
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close(fd1);
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236340 */
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TEST_F(Open, DISABLED_o_append)
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{
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test_ok(O_WRONLY | O_APPEND, O_WRONLY | O_APPEND);
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}
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/* The kernel is supposed to filter out this flag */
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TEST_F(Open, o_creat)
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{
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test_ok(O_WRONLY | O_CREAT, O_WRONLY);
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236340 */
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TEST_F(Open, DISABLED_o_direct)
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{
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test_ok(O_WRONLY | O_DIRECT, O_WRONLY | O_DIRECT);
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}
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/* The kernel is supposed to filter out this flag */
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TEST_F(Open, o_excl)
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{
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test_ok(O_WRONLY | O_EXCL, O_WRONLY);
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}
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TEST_F(Open, o_exec)
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{
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test_ok(O_EXEC, O_EXEC);
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}
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/* The kernel is supposed to filter out this flag */
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TEST_F(Open, o_noctty)
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{
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test_ok(O_WRONLY | O_NOCTTY, O_WRONLY);
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}
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TEST_F(Open, o_rdonly)
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{
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test_ok(O_RDONLY, O_RDONLY);
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236340 */
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TEST_F(Open, DISABLED_o_trunc)
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{
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test_ok(O_WRONLY | O_TRUNC, O_WRONLY | O_TRUNC);
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}
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TEST_F(Open, o_wronly)
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{
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test_ok(O_WRONLY, O_WRONLY);
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}
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TEST_F(Open, o_rdwr)
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{
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test_ok(O_RDWR, O_RDWR);
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}
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