fuse(4): add tests related to FUSE_MKNOD
PR: 236236 Sponsored by: The FreeBSD Foundation
This commit is contained in:
parent
99fe8368c2
commit
4cbb4f8886
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/projects/fuse2/; revision=344786
@ -194,6 +194,11 @@ struct fuse_attr_out {
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struct fuse_attr attr;
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};
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struct fuse_mknod_in {
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__u32 mode;
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__u32 rdev;
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};
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struct fuse_mkdir_in {
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__u32 mode;
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__u32 padding;
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@ -7,6 +7,7 @@ TESTSDIR= ${TESTSBASE}/sys/fs/fuse
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ATF_TESTS_CXX+= create
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ATF_TESTS_CXX+= getattr
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ATF_TESTS_CXX+= lookup
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ATF_TESTS_CXX+= mknod
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ATF_TESTS_CXX+= open
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ATF_TESTS_CXX+= readlink
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ATF_TESTS_CXX+= setattr
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@ -27,6 +28,11 @@ SRCS.lookup+= lookup.cc
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SRCS.lookup+= mockfs.cc
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SRCS.lookup+= utils.cc
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SRCS.mknod+= getmntopts.c
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SRCS.mknod+= mockfs.cc
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SRCS.mknod+= mknod.cc
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SRCS.mknod+= utils.cc
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SRCS.open+= getmntopts.c
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SRCS.open+= mockfs.cc
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SRCS.open+= open.cc
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@ -133,7 +133,94 @@ TEST_F(Create, eexist)
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EXPECT_EQ(EEXIST, errno);
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}
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// TODO: enosys: kernel should fall back to mknod/open
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/*
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* If the daemon doesn't implement FUSE_CREATE, then the kernel should fallback
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* to FUSE_MKNOD/FUSE_OPEN
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*/
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Create, DISABLED_Enosys)
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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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mode_t mode = 0755;
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uint64_t ino = 42;
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int fd;
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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_LOOKUP &&
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strcmp(in->body.lookup, RELPATH) == 0);
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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out->header.error = -ENOENT;
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out->header.len = sizeof(out->header);
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}));
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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const char *name = (const char*)in->body.bytes +
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sizeof(fuse_open_in);
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return (in->header.opcode == FUSE_CREATE &&
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(0 == strcmp(RELPATH, name)));
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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out->header.error = -ENOSYS;
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out->header.len = sizeof(out->header);
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}));
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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const char *name = (const char*)in->body.bytes +
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sizeof(fuse_mknod_in);
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return (in->header.opcode == FUSE_MKNOD &&
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in->body.mknod.mode == (S_IFREG | mode) &&
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in->body.mknod.rdev == 0 &&
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(0 == strcmp(RELPATH, name)));
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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SET_OUT_HEADER_LEN(out, create);
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out->body.create.entry.attr.mode = S_IFREG | mode;
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out->body.create.entry.nodeid = ino;
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out->body.create.entry.entry_valid = UINT64_MAX;
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out->body.create.entry.attr_valid = UINT64_MAX;
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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.nodeid == ino);
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}, Eq(true)),
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_)
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).WillOnce(Invoke([](auto in, auto out) {
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out->header.unique = in->header.unique;
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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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/* Until the attr cache is working, we may send an additional GETATTR */
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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_GETATTR &&
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in->header.nodeid == ino);
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}, Eq(true)),
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_)
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).WillRepeatedly(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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SET_OUT_HEADER_LEN(out, attr);
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out->body.attr.attr.ino = ino; // Must match nodeid
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out->body.attr.attr.mode = S_IFREG | 0644;
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}));
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fd = open(FULLPATH, O_CREAT | O_EXCL, mode);
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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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* Creating a new file after FUSE_LOOKUP returned a negative cache entry
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162
tests/sys/fs/fuse/mknod.cc
Normal file
162
tests/sys/fs/fuse/mknod.cc
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@ -0,0 +1,162 @@
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/*-
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* Copyright (c) 2019 The FreeBSD Foundation
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* All rights reserved.
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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 <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 Mknod: public FuseTest {
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public:
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virtual void SetUp() {
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if (geteuid() != 0) {
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// TODO: With GoogleTest 1.8.2, use SKIP instead
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FAIL() << "Only root may use most mknod(2) variations";
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}
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FuseTest::SetUp();
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}
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/* Test an OK creation of a file with the given mode and device number */
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void test_ok(mode_t mode, dev_t dev) {
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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_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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return (in->header.opcode == FUSE_LOOKUP &&
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strcmp(in->body.lookup, RELPATH) == 0);
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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out->header.error = -ENOENT;
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out->header.len = sizeof(out->header);
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}));
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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const char *name = (const char*)in->body.bytes +
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sizeof(fuse_mknod_in);
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return (in->header.opcode == FUSE_MKNOD &&
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in->body.mknod.mode == mode &&
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in->body.mknod.rdev == dev &&
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(0 == strcmp(RELPATH, name)));
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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SET_OUT_HEADER_LEN(out, create);
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out->body.create.entry.attr.mode = mode;
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out->body.create.entry.nodeid = ino;
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out->body.create.entry.entry_valid = UINT64_MAX;
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out->body.create.entry.attr_valid = UINT64_MAX;
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out->body.create.entry.attr.rdev = dev;
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}));
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EXPECT_EQ(0, mknod(FULLPATH, mode, dev)) << strerror(errno);
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}
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};
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/*
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* mknod(2) should be able to create block devices on a FUSE filesystem. Even
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* though FreeBSD doesn't use block devices, this is useful when copying media
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* from or preparing media for other operating systems.
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*/
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Mknod, DISABLED_blk)
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{
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test_ok(S_IFBLK | 0755, 0xfe00); /* /dev/vda's device number on Linux */
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Mknod, DISABLED_chr)
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{
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test_ok(S_IFCHR | 0755, 0x64); /* /dev/fuse's device number */
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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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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Mknod, DISABLED_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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mode_t mode = S_IFIFO | 0755;
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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_LOOKUP &&
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strcmp(in->body.lookup, RELPATH) == 0);
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}, Eq(true)),
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_)
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).WillOnce(Invoke([=](auto in, auto out) {
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out->header.unique = in->header.unique;
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out->header.error = -ENOENT;
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out->header.len = sizeof(out->header);
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}));
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EXPECT_CALL(*m_mock, process(
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ResultOf([=](auto in) {
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const char *name = (const char*)in->body.bytes +
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sizeof(fuse_mknod_in);
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return (in->header.opcode == FUSE_MKNOD &&
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in->body.mknod.mode == mode &&
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(0 == strcmp(RELPATH, name)));
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}, Eq(true)),
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_)
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).WillOnce(Invoke([](auto in, auto out) {
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out->header.unique = in->header.unique;
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out->header.error = -EPERM;
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out->header.len = sizeof(out->header);
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}));
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EXPECT_NE(0, mknod(FULLPATH, mode, 0));
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EXPECT_EQ(EPERM, errno);
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Mknod, DISABLED_fifo)
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{
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test_ok(S_IFIFO | 0755, 0);
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}
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/* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236236 */
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TEST_F(Mknod, DISABLED_whiteout)
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{
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test_ok(S_IFWHT | 0755, 0);
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}
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@ -56,6 +56,7 @@ union fuse_payloads_in {
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fuse_forget_in forget;
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fuse_init_in init;
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char lookup[0];
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fuse_mknod_in mknod;
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fuse_open_in open;
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fuse_setattr_in setattr;
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};
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@ -32,7 +32,7 @@ class FuseTest : public ::testing::Test {
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MockFS *m_mock = NULL;
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public:
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void SetUp() {
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virtual void SetUp() {
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try {
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m_mock = new MockFS{};
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} catch (std::system_error err) {
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