/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2019 The FreeBSD Foundation
*
* This software was developed by BFF Storage Systems, LLC under sponsorship
* from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
extern "C" {
#include <fcntl.h>
}
#include "mockfs.hh"
#include "utils.hh"
using namespace testing;
class Mknod: public FuseTest {
public:
virtual void SetUp() {
FuseTest::SetUp();
if (geteuid() != 0) {
GTEST_SKIP() << "Only root may use most mknod(2) variations";
}
}
/* Test an OK creation of a file with the given mode and device number */
void test_ok(mode_t mode, dev_t dev) {
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
uint64_t ino = 42;
EXPECT_LOOKUP(1, RELPATH).WillOnce(Invoke(ReturnErrno(ENOENT)));
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
const char *name = (const char*)in->body.bytes +
sizeof(fuse_mknod_in);
return (in->header.opcode == FUSE_MKNOD &&
in->body.mknod.mode == mode &&
in->body.mknod.rdev == dev &&
(0 == strcmp(RELPATH, name)));
}, Eq(true)),
_)
).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
SET_OUT_HEADER_LEN(out, create);
out->body.create.entry.attr.mode = mode;
out->body.create.entry.nodeid = ino;
out->body.create.entry.entry_valid = UINT64_MAX;
out->body.create.entry.attr_valid = UINT64_MAX;
out->body.create.entry.attr.rdev = dev;
})));
EXPECT_EQ(0, mknod(FULLPATH, mode, dev)) << strerror(errno);
}
};
/*
* mknod(2) should be able to create block devices on a FUSE filesystem. Even
* though FreeBSD doesn't use block devices, this is useful when copying media
* from or preparing media for other operating systems.
*/
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
TEST_F(Mknod, DISABLED_blk)
{
test_ok(S_IFBLK | 0755, 0xfe00); /* /dev/vda's device number on Linux */
}
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
TEST_F(Mknod, DISABLED_chr)
{
test_ok(S_IFCHR | 0755, 0x64); /* /dev/fuse's device number */
}
/*
* The daemon is responsible for checking file permissions (unless the
* default_permissions mount option was used)
*/
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
TEST_F(Mknod, DISABLED_eperm)
{
const char FULLPATH[] = "mountpoint/some_file.txt";
const char RELPATH[] = "some_file.txt";
mode_t mode = S_IFIFO | 0755;
EXPECT_LOOKUP(1, RELPATH).WillOnce(Invoke(ReturnErrno(ENOENT)));
EXPECT_CALL(*m_mock, process(
ResultOf([=](auto in) {
const char *name = (const char*)in->body.bytes +
sizeof(fuse_mknod_in);
return (in->header.opcode == FUSE_MKNOD &&
in->body.mknod.mode == mode &&
(0 == strcmp(RELPATH, name)));
}, Eq(true)),
_)
).WillOnce(Invoke(ReturnErrno(EPERM)));
EXPECT_NE(0, mknod(FULLPATH, mode, 0));
EXPECT_EQ(EPERM, errno);
}
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
TEST_F(Mknod, DISABLED_fifo)
{
test_ok(S_IFIFO | 0755, 0);
}
/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
TEST_F(Mknod, DISABLED_whiteout)
{
test_ok(S_IFWHT | 0755, 0);
}
