git: 398c88c7582a - main - fusefs: implement VOP_ALLOCATE
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Date: Sat, 01 Jan 2022 04:05:44 UTC
The branch main has been updated by asomers:
URL: https://cgit.FreeBSD.org/src/commit/?id=398c88c7582a195cbfeb689ceff1400cc717673f
commit 398c88c7582a195cbfeb689ceff1400cc717673f
Author: Alan Somers <asomers@FreeBSD.org>
AuthorDate: 2022-01-01 04:04:12 +0000
Commit: Alan Somers <asomers@FreeBSD.org>
CommitDate: 2022-01-01 04:05:28 +0000
fusefs: implement VOP_ALLOCATE
Now posix_fallocate will be correctly forwarded to fuse file system
servers, for those that support it.
MFC after: 2 weeks
Reviewed by: pfg
Differential Revision: https://reviews.freebsd.org/D33389
---
sys/fs/fuse/fuse_internal.c | 4 +
sys/fs/fuse/fuse_ipc.c | 4 +
sys/fs/fuse/fuse_vnops.c | 93 ++++++++-
tests/sys/fs/fusefs/Makefile | 1 +
tests/sys/fs/fusefs/default_permissions.cc | 89 ++++++++-
tests/sys/fs/fusefs/fallocate.cc | 297 +++++++++++++++++++++++++++++
tests/sys/fs/fusefs/last_local_modify.cc | 93 ++++++---
tests/sys/fs/fusefs/mockfs.cc | 13 +-
tests/sys/fs/fusefs/mockfs.hh | 1 +
tests/sys/fs/fusefs/utils.cc | 17 ++
tests/sys/fs/fusefs/utils.hh | 8 +
11 files changed, 593 insertions(+), 27 deletions(-)
diff --git a/sys/fs/fuse/fuse_internal.c b/sys/fs/fuse/fuse_internal.c
index a4a8a3f6fce7..0b0c24827c1e 100644
--- a/sys/fs/fuse/fuse_internal.c
+++ b/sys/fs/fuse/fuse_internal.c
@@ -1074,6 +1074,10 @@ fuse_internal_init_callback(struct fuse_ticket *tick, struct uio *uio)
fsess_set_notimpl(data->mp, FUSE_DESTROY);
}
+ if (!fuse_libabi_geq(data, 7, 19)) {
+ fsess_set_notimpl(data->mp, FUSE_FALLOCATE);
+ }
+
if (fuse_libabi_geq(data, 7, 23) && fiio->time_gran >= 1 &&
fiio->time_gran <= 1000000000)
data->time_gran = fiio->time_gran;
diff --git a/sys/fs/fuse/fuse_ipc.c b/sys/fs/fuse/fuse_ipc.c
index 0042de602739..7a6c0e3da76b 100644
--- a/sys/fs/fuse/fuse_ipc.c
+++ b/sys/fs/fuse/fuse_ipc.c
@@ -845,6 +845,10 @@ fuse_body_audit(struct fuse_ticket *ftick, size_t blen)
err = (blen == 0) ? 0 : EINVAL;
break;
+ case FUSE_FALLOCATE:
+ err = (blen == 0) ? 0 : EINVAL;
+ break;
+
case FUSE_LSEEK:
err = (blen == sizeof(struct fuse_lseek_out)) ? 0 : EINVAL;
break;
diff --git a/sys/fs/fuse/fuse_vnops.c b/sys/fs/fuse/fuse_vnops.c
index 640f9d2f8243..31398596bc17 100644
--- a/sys/fs/fuse/fuse_vnops.c
+++ b/sys/fs/fuse/fuse_vnops.c
@@ -127,6 +127,7 @@ SDT_PROBE_DEFINE2(fusefs, , vnops, trace, "int", "char*");
/* vnode ops */
static vop_access_t fuse_vnop_access;
static vop_advlock_t fuse_vnop_advlock;
+static vop_allocate_t fuse_vnop_allocate;
static vop_bmap_t fuse_vnop_bmap;
static vop_close_t fuse_fifo_close;
static vop_close_t fuse_vnop_close;
@@ -180,7 +181,7 @@ struct vop_vector fuse_fifoops = {
VFS_VOP_VECTOR_REGISTER(fuse_fifoops);
struct vop_vector fuse_vnops = {
- .vop_allocate = VOP_EINVAL,
+ .vop_allocate = fuse_vnop_allocate,
.vop_default = &default_vnodeops,
.vop_access = fuse_vnop_access,
.vop_advlock = fuse_vnop_advlock,
@@ -550,6 +551,96 @@ out:
return err;
}
+static int
+fuse_vnop_allocate(struct vop_allocate_args *ap)
+{
+ struct vnode *vp = ap->a_vp;
+ off_t *len = ap->a_len;
+ off_t *offset = ap->a_offset;
+ struct ucred *cred = ap->a_cred;
+ struct fuse_filehandle *fufh;
+ struct mount *mp = vnode_mount(vp);
+ struct fuse_dispatcher fdi;
+ struct fuse_fallocate_in *ffi;
+ struct uio io;
+ pid_t pid = curthread->td_proc->p_pid;
+ struct fuse_vnode_data *fvdat = VTOFUD(vp);
+ off_t filesize;
+ int err;
+
+ if (fuse_isdeadfs(vp))
+ return (ENXIO);
+
+ switch (vp->v_type) {
+ case VFIFO:
+ return (ESPIPE);
+ case VLNK:
+ case VREG:
+ if (vfs_isrdonly(mp))
+ return (EROFS);
+ break;
+ default:
+ return (ENODEV);
+ }
+
+ if (vfs_isrdonly(mp))
+ return (EROFS);
+
+ if (fsess_not_impl(mp, FUSE_FALLOCATE))
+ return (EINVAL);
+
+ io.uio_offset = *offset;
+ io.uio_resid = *len;
+ err = vn_rlimit_fsize(vp, &io, curthread);
+ if (err)
+ return (err);
+
+ err = fuse_filehandle_getrw(vp, FWRITE, &fufh, cred, pid);
+ if (err)
+ return (err);
+
+ fuse_vnode_update(vp, FN_MTIMECHANGE | FN_CTIMECHANGE);
+
+ err = fuse_vnode_size(vp, &filesize, cred, curthread);
+ if (err)
+ return (err);
+ fuse_inval_buf_range(vp, filesize, *offset, *offset + *len);
+
+ fdisp_init(&fdi, sizeof(*ffi));
+ fdisp_make_vp(&fdi, FUSE_FALLOCATE, vp, curthread, cred);
+ ffi = fdi.indata;
+ ffi->fh = fufh->fh_id;
+ ffi->offset = *offset;
+ ffi->length = *len;
+ ffi->mode = 0;
+ err = fdisp_wait_answ(&fdi);
+
+ if (err == ENOSYS) {
+ fsess_set_notimpl(mp, FUSE_FALLOCATE);
+ err = EINVAL;
+ } else if (err == EOPNOTSUPP) {
+ /*
+ * The file system server does not support FUSE_FALLOCATE with
+ * the supplied mode. That's effectively the same thing as
+ * ENOSYS since we only ever issue mode=0.
+ * TODO: revise this section once we support fspacectl.
+ */
+ fsess_set_notimpl(mp, FUSE_FALLOCATE);
+ err = EINVAL;
+ } else if (!err) {
+ *offset += *len;
+ *len = 0;
+ fuse_vnode_undirty_cached_timestamps(vp, false);
+ fuse_internal_clear_suid_on_write(vp, cred, curthread);
+ if (*offset > fvdat->cached_attrs.va_size) {
+ fuse_vnode_setsize(vp, *offset, false);
+ getnanouptime(&fvdat->last_local_modify);
+ }
+ }
+
+ return (err);
+}
+
/* {
struct vnode *a_vp;
daddr_t a_bn;
diff --git a/tests/sys/fs/fusefs/Makefile b/tests/sys/fs/fusefs/Makefile
index e508d3edbdea..04b68681ec9a 100644
--- a/tests/sys/fs/fusefs/Makefile
+++ b/tests/sys/fs/fusefs/Makefile
@@ -19,6 +19,7 @@ GTESTS+= default_permissions
GTESTS+= default_permissions_privileged
GTESTS+= destroy
GTESTS+= dev_fuse_poll
+GTESTS+= fallocate
GTESTS+= fifo
GTESTS+= flush
GTESTS+= forget
diff --git a/tests/sys/fs/fusefs/default_permissions.cc b/tests/sys/fs/fusefs/default_permissions.cc
index 6401f926bb49..0739ad48f1e2 100644
--- a/tests/sys/fs/fusefs/default_permissions.cc
+++ b/tests/sys/fs/fusefs/default_permissions.cc
@@ -163,6 +163,7 @@ class Chgrp: public DefaultPermissions {};
class CopyFileRange: public DefaultPermissions {};
class Lookup: public DefaultPermissions {};
class Open: public DefaultPermissions {};
+class PosixFallocate: public DefaultPermissions {};
class Setattr: public DefaultPermissions {};
class Unlink: public DefaultPermissions {};
class Utimensat: public DefaultPermissions {};
@@ -498,7 +499,7 @@ TEST_F(Chgrp, ok)
}
/* A write by a non-owner should clear a file's SGID bit */
-TEST_F(CopyFileRange, clear_guid)
+TEST_F(CopyFileRange, clear_sgid)
{
const char FULLPATH_IN[] = "mountpoint/in.txt";
const char RELPATH_IN[] = "in.txt";
@@ -877,6 +878,92 @@ TEST_F(Open, ok)
leak(fd);
}
+/* A write by a non-owner should clear a file's SGID bit */
+TEST_F(PosixFallocate, clear_sgid)
+{
+ const char FULLPATH[] = "mountpoint/file.txt";
+ const char RELPATH[] = "file.txt";
+ struct stat sb;
+ uint64_t ino = 42;
+ mode_t oldmode = 02777;
+ mode_t newmode = 0777;
+ off_t fsize = 16;
+ off_t off = 8;
+ off_t len = 8;
+ int fd;
+
+ expect_getattr(FUSE_ROOT_ID, S_IFDIR | 0755, UINT64_MAX, 1);
+ FuseTest::expect_lookup(RELPATH, ino, S_IFREG | oldmode, fsize,
+ 1, UINT64_MAX, 0, 0);
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, off, len, 0, 0);
+ expect_chmod(ino, newmode, fsize);
+
+ fd = open(FULLPATH, O_WRONLY);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(0, posix_fallocate(fd, off, len)) << strerror(errno);
+ ASSERT_EQ(0, fstat(fd, &sb)) << strerror(errno);
+ EXPECT_EQ(S_IFREG | newmode, sb.st_mode);
+
+ leak(fd);
+}
+
+/* A write by a non-owner should clear a file's SUID bit */
+TEST_F(PosixFallocate, clear_suid)
+{
+ const char FULLPATH[] = "mountpoint/file.txt";
+ const char RELPATH[] = "file.txt";
+ struct stat sb;
+ uint64_t ino = 42;
+ mode_t oldmode = 04777;
+ mode_t newmode = 0777;
+ off_t fsize = 16;
+ off_t off = 8;
+ off_t len = 8;
+ int fd;
+
+ expect_getattr(FUSE_ROOT_ID, S_IFDIR | 0755, UINT64_MAX, 1);
+ FuseTest::expect_lookup(RELPATH, ino, S_IFREG | oldmode, fsize,
+ 1, UINT64_MAX, 0, 0);
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, off, len, 0, 0);
+ expect_chmod(ino, newmode, fsize);
+
+ fd = open(FULLPATH, O_WRONLY);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(0, posix_fallocate(fd, off, len)) << strerror(errno);
+ ASSERT_EQ(0, fstat(fd, &sb)) << strerror(errno);
+ EXPECT_EQ(S_IFREG | newmode, sb.st_mode);
+
+ leak(fd);
+}
+
+/*
+ * posix_fallcoate() of a file without writable permissions should succeed as
+ * long as the file descriptor is writable. This is important when combined
+ * with O_CREAT
+ */
+TEST_F(PosixFallocate, posix_fallocate_of_newly_created_file)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ const uint64_t ino = 42;
+ off_t off = 8;
+ off_t len = 8;
+ int fd;
+
+ expect_getattr(FUSE_ROOT_ID, S_IFDIR | 0777, UINT64_MAX, 1);
+ EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
+ .WillOnce(Invoke(ReturnErrno(ENOENT)));
+ expect_create(RELPATH, ino);
+ expect_fallocate(ino, off, len, 0, 0);
+
+ fd = open(FULLPATH, O_CREAT | O_RDWR, 0);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(0, posix_fallocate(fd, off, len)) << strerror(errno);
+ leak(fd);
+}
+
TEST_F(Rename, eacces_on_srcdir)
{
const char FULLDST[] = "mountpoint/d/dst";
diff --git a/tests/sys/fs/fusefs/fallocate.cc b/tests/sys/fs/fusefs/fallocate.cc
new file mode 100644
index 000000000000..386a3ac746ea
--- /dev/null
+++ b/tests/sys/fs/fusefs/fallocate.cc
@@ -0,0 +1,297 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 Alan Somers
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+extern "C" {
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/resource.h>
+#include <sys/time.h>
+
+#include <fcntl.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "mntopts.h" // for build_iovec
+}
+
+#include "mockfs.hh"
+#include "utils.hh"
+
+using namespace testing;
+
+class Fallocate: public FuseTest{};
+
+class PosixFallocate: public Fallocate {
+public:
+static sig_atomic_t s_sigxfsz;
+
+void SetUp() {
+ s_sigxfsz = 0;
+ FuseTest::SetUp();
+}
+
+void TearDown() {
+ struct sigaction sa;
+
+ bzero(&sa, sizeof(sa));
+ sa.sa_handler = SIG_DFL;
+ sigaction(SIGXFSZ, &sa, NULL);
+
+ Fallocate::TearDown();
+}
+
+};
+
+sig_atomic_t PosixFallocate::s_sigxfsz = 0;
+
+void sigxfsz_handler(int __unused sig) {
+ PosixFallocate::s_sigxfsz = 1;
+}
+
+class PosixFallocate_7_18: public PosixFallocate {
+public:
+virtual void SetUp() {
+ m_kernel_minor_version = 18;
+ PosixFallocate::SetUp();
+}
+};
+
+
+/*
+ * If the server returns ENOSYS, it indicates that the server does not support
+ * FUSE_FALLOCATE. This and future calls should return EINVAL.
+ */
+TEST_F(PosixFallocate, enosys)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, offset, length, 0, ENOSYS);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(EINVAL, posix_fallocate(fd, offset, length));
+
+ /* Subsequent calls shouldn't query the daemon*/
+ EXPECT_EQ(EINVAL, posix_fallocate(fd, offset, length));
+
+ leak(fd);
+}
+
+/*
+ * EOPNOTSUPP means either "the file system does not support fallocate" or "the
+ * file system does not support fallocate with the supplied mode". fusefs
+ * should conservatively assume the latter, and not issue any more fallocate
+ * operations with the same mode.
+ */
+TEST_F(PosixFallocate, eopnotsupp)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, offset, length, 0, EOPNOTSUPP);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(EINVAL, posix_fallocate(fd, offset, length));
+
+ /* Subsequent calls shouldn't query the daemon*/
+ EXPECT_EQ(EINVAL, posix_fallocate(fd, offset, length));
+
+ leak(fd);
+}
+
+/* EIO is not a permanent error, and may be retried */
+TEST_F(PosixFallocate, eio)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, offset, length, 0, EIO);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(EIO, posix_fallocate(fd, offset, length));
+
+ expect_fallocate(ino, offset, length, 0, 0);
+
+ EXPECT_EQ(0, posix_fallocate(fd, offset, length));
+
+ leak(fd);
+}
+
+TEST_F(PosixFallocate, erofs)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ struct statfs statbuf;
+ struct iovec *iov = NULL;
+ int iovlen = 0;
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+ int newflags;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+ EXPECT_CALL(*m_mock, process(
+ ResultOf([](auto in) {
+ return (in.header.opcode == FUSE_STATFS);
+ }, Eq(true)),
+ _)
+ ).WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto& out)
+ {
+ /*
+ * All of the fields except f_flags are don't care, and f_flags
+ * is set by the VFS
+ */
+ SET_OUT_HEADER_LEN(out, statfs);
+ })));
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+
+ /* Remount read-only */
+ ASSERT_EQ(0, statfs("mountpoint", &statbuf)) << strerror(errno);
+ newflags = statbuf.f_flags | MNT_UPDATE | MNT_RDONLY;
+ build_iovec(&iov, &iovlen, "fstype", (void*)statbuf.f_fstypename, -1);
+ build_iovec(&iov, &iovlen, "fspath", (void*)statbuf.f_mntonname, -1);
+ build_iovec(&iov, &iovlen, "from", __DECONST(void *, "/dev/fuse"), -1);
+ ASSERT_EQ(0, nmount(iov, iovlen, newflags)) << strerror(errno);
+
+ EXPECT_EQ(EROFS, posix_fallocate(fd, offset, length));
+
+ leak(fd);
+}
+
+TEST_F(PosixFallocate, ok)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ struct stat sb0, sb1;
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+
+ EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
+ .WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+ SET_OUT_HEADER_LEN(out, entry);
+ out.body.entry.attr.mode = S_IFREG | 0644;
+ out.body.entry.nodeid = ino;
+ out.body.entry.entry_valid = UINT64_MAX;
+ out.body.entry.attr_valid = UINT64_MAX;
+ })));
+ expect_open(ino, 0, 1);
+ expect_fallocate(ino, offset, length, 0, 0);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ ASSERT_EQ(0, fstat(fd, &sb0)) << strerror(errno);
+ EXPECT_EQ(0, posix_fallocate(fd, offset, length));
+ /*
+ * Despite the originally cached file size of zero, stat should now
+ * return either the new size or requery the daemon.
+ */
+ EXPECT_EQ(0, stat(FULLPATH, &sb1));
+ EXPECT_EQ(length, (uint64_t)sb1.st_size);
+
+ /* mtime and ctime should be updated */
+ EXPECT_EQ(sb0.st_atime, sb1.st_atime);
+ EXPECT_NE(sb0.st_mtime, sb1.st_mtime);
+ EXPECT_NE(sb0.st_ctime, sb1.st_ctime);
+
+ leak(fd);
+}
+
+/* fusefs should respect RLIMIT_FSIZE */
+TEST_F(PosixFallocate, rlimit_fsize)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ struct rlimit rl;
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1'000'000;
+ int fd;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+
+ rl.rlim_cur = length / 2;
+ rl.rlim_max = 10 * length;
+ ASSERT_EQ(0, setrlimit(RLIMIT_FSIZE, &rl)) << strerror(errno);
+ ASSERT_NE(SIG_ERR, signal(SIGXFSZ, sigxfsz_handler)) << strerror(errno);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(EFBIG, posix_fallocate(fd, offset, length));
+ EXPECT_EQ(1, s_sigxfsz);
+
+ leak(fd);
+}
+
+/* With older servers, no FUSE_FALLOCATE should be attempted */
+TEST_F(PosixFallocate_7_18, einval)
+{
+ const char FULLPATH[] = "mountpoint/some_file.txt";
+ const char RELPATH[] = "some_file.txt";
+ uint64_t ino = 42;
+ uint64_t offset = 0;
+ uint64_t length = 1000;
+ int fd;
+
+ expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 1);
+ expect_open(ino, 0, 1);
+
+ fd = open(FULLPATH, O_RDWR);
+ ASSERT_LE(0, fd) << strerror(errno);
+ EXPECT_EQ(EINVAL, posix_fallocate(fd, offset, length));
+
+ leak(fd);
+}
diff --git a/tests/sys/fs/fusefs/last_local_modify.cc b/tests/sys/fs/fusefs/last_local_modify.cc
index a203a02e922b..9826296c80c3 100644
--- a/tests/sys/fs/fusefs/last_local_modify.cc
+++ b/tests/sys/fs/fusefs/last_local_modify.cc
@@ -62,9 +62,10 @@ using namespace testing;
*/
enum Mutator {
+ VOP_ALLOCATE,
+ VOP_COPY_FILE_RANGE,
VOP_SETATTR,
VOP_WRITE,
- VOP_COPY_FILE_RANGE
};
/*
@@ -73,22 +74,26 @@ enum Mutator {
* --gtest_list_tests
*/
enum Mutator writer_from_str(const char* s) {
- if (0 == strcmp("VOP_SETATTR", s))
+ if (0 == strcmp("VOP_ALLOCATE", s))
+ return VOP_ALLOCATE;
+ else if (0 == strcmp("VOP_COPY_FILE_RANGE", s))
+ return VOP_COPY_FILE_RANGE;
+ else if (0 == strcmp("VOP_SETATTR", s))
return VOP_SETATTR;
- else if (0 == strcmp("VOP_WRITE", s))
- return VOP_WRITE;
else
- return VOP_COPY_FILE_RANGE;
+ return VOP_WRITE;
}
uint32_t fuse_op_from_mutator(enum Mutator mutator) {
switch(mutator) {
+ case VOP_ALLOCATE:
+ return(FUSE_FALLOCATE);
+ case VOP_COPY_FILE_RANGE:
+ return(FUSE_COPY_FILE_RANGE);
case VOP_SETATTR:
return(FUSE_SETATTR);
case VOP_WRITE:
return(FUSE_WRITE);
- case VOP_COPY_FILE_RANGE:
- return(FUSE_COPY_FILE_RANGE);
}
}
@@ -101,6 +106,25 @@ virtual void SetUp() {
}
};
+static void* allocate_th(void* arg) {
+ int fd;
+ ssize_t r;
+ sem_t *sem = (sem_t*) arg;
+
+ if (sem)
+ sem_wait(sem);
+
+ fd = open("mountpoint/some_file.txt", O_RDWR);
+ if (fd < 0)
+ return (void*)(intptr_t)errno;
+
+ r = posix_fallocate(fd, 0, 15);
+ if (r >= 0)
+ return 0;
+ else
+ return (void*)(intptr_t)errno;
+}
+
static void* copy_file_range_th(void* arg) {
ssize_t r;
int fd;
@@ -261,6 +285,14 @@ TEST_P(LastLocalModify, lookup)
/* Then, respond to the mutator request */
out1->header.unique = mutator_unique;
switch(mutator) {
+ case VOP_ALLOCATE:
+ out1->header.error = 0;
+ out1->header.len = sizeof(out1->header);
+ break;
+ case VOP_COPY_FILE_RANGE:
+ SET_OUT_HEADER_LEN(*out1, write);
+ out1->body.write.size = mutator_size;
+ break;
case VOP_SETATTR:
SET_OUT_HEADER_LEN(*out1, attr);
out1->body.attr.attr.ino = ino;
@@ -272,16 +304,20 @@ TEST_P(LastLocalModify, lookup)
SET_OUT_HEADER_LEN(*out1, write);
out1->body.write.size = mutator_size;
break;
- case VOP_COPY_FILE_RANGE:
- SET_OUT_HEADER_LEN(*out1, write);
- out1->body.write.size = mutator_size;
- break;
}
out.push_back(std::move(out1));
}));
/* Start the mutator thread */
switch(mutator) {
+ case VOP_ALLOCATE:
+ ASSERT_EQ(0, pthread_create(&th0, NULL, allocate_th,
+ NULL)) << strerror(errno);
+ break;
+ case VOP_COPY_FILE_RANGE:
+ ASSERT_EQ(0, pthread_create(&th0, NULL, copy_file_range_th,
+ NULL)) << strerror(errno);
+ break;
case VOP_SETATTR:
ASSERT_EQ(0, pthread_create(&th0, NULL, setattr_th, NULL))
<< strerror(errno);
@@ -290,10 +326,6 @@ TEST_P(LastLocalModify, lookup)
ASSERT_EQ(0, pthread_create(&th0, NULL, write_th, NULL))
<< strerror(errno);
break;
- case VOP_COPY_FILE_RANGE:
- ASSERT_EQ(0, pthread_create(&th0, NULL, copy_file_range_th,
- NULL)) << strerror(errno);
- break;
}
@@ -415,6 +447,14 @@ TEST_P(LastLocalModify, vfs_vget)
/* Then, respond to the mutator request */
out1->header.unique = in.header.unique;
switch(mutator) {
+ case VOP_ALLOCATE:
+ out1->header.error = 0;
+ out1->header.len = sizeof(out1->header);
+ break;
+ case VOP_COPY_FILE_RANGE:
+ SET_OUT_HEADER_LEN(*out1, write);
+ out1->body.write.size = in.body.copy_file_range.len;
+ break;
case VOP_SETATTR:
SET_OUT_HEADER_LEN(*out1, attr);
out1->body.attr.attr.ino = ino;
@@ -426,10 +466,6 @@ TEST_P(LastLocalModify, vfs_vget)
SET_OUT_HEADER_LEN(*out1, write);
out1->body.write.size = in.body.write.size;
break;
- case VOP_COPY_FILE_RANGE:
- SET_OUT_HEADER_LEN(*out1, write);
- out1->body.write.size = in.body.copy_file_range.len;
- break;
}
out.push_back(std::move(out1));
}));
@@ -439,6 +475,14 @@ TEST_P(LastLocalModify, vfs_vget)
/* Start the mutator thread */
switch(mutator) {
+ case VOP_ALLOCATE:
+ ASSERT_EQ(0, pthread_create(&th0, NULL, allocate_th,
+ (void*)&sem)) << strerror(errno);
+ break;
+ case VOP_COPY_FILE_RANGE:
+ ASSERT_EQ(0, pthread_create(&th0, NULL, copy_file_range_th,
+ (void*)&sem)) << strerror(errno);
+ break;
case VOP_SETATTR:
ASSERT_EQ(0, pthread_create(&th0, NULL, setattr_th,
(void*)&sem)) << strerror(errno);
@@ -447,10 +491,6 @@ TEST_P(LastLocalModify, vfs_vget)
ASSERT_EQ(0, pthread_create(&th0, NULL, write_th, (void*)&sem))
<< strerror(errno);
break;
- case VOP_COPY_FILE_RANGE:
- ASSERT_EQ(0, pthread_create(&th0, NULL, copy_file_range_th,
- (void*)&sem)) << strerror(errno);
- break;
}
/* Lookup again, which will race with setattr */
@@ -465,5 +505,10 @@ TEST_P(LastLocalModify, vfs_vget)
INSTANTIATE_TEST_CASE_P(LLM, LastLocalModify,
- Values("VOP_SETATTR", "VOP_WRITE", "VOP_COPY_FILE_RANGE")
+ Values(
+ "VOP_ALLOCATE",
+ "VOP_COPY_FILE_RANGE",
+ "VOP_SETATTR",
+ "VOP_WRITE"
+ )
);
diff --git a/tests/sys/fs/fusefs/mockfs.cc b/tests/sys/fs/fusefs/mockfs.cc
index a943d3d6972c..231f46b18aba 100644
--- a/tests/sys/fs/fusefs/mockfs.cc
+++ b/tests/sys/fs/fusefs/mockfs.cc
@@ -207,6 +207,14 @@ void MockFS::debug_request(const mockfs_buf_in &in, ssize_t buflen)
printf(" flags=%#x name=%s",
in.body.open.flags, name);
break;
+ case FUSE_FALLOCATE:
+ printf(" fh=%#" PRIx64 " offset=%" PRIu64
+ " length=%" PRIx64 " mode=%#x",
+ in.body.fallocate.fh,
+ in.body.fallocate.offset,
+ in.body.fallocate.length,
+ in.body.fallocate.mode);
+ break;
case FUSE_FLUSH:
printf(" fh=%#" PRIx64 " lock_owner=%" PRIu64,
in.body.flush.fh,
@@ -684,6 +692,10 @@ void MockFS::audit_request(const mockfs_buf_in &in, ssize_t buflen) {
EXPECT_EQ(inlen, fih + sizeof(in.body.interrupt));
EXPECT_EQ((size_t)buflen, inlen);
break;
+ case FUSE_FALLOCATE:
+ EXPECT_EQ(inlen, fih + sizeof(in.body.fallocate));
+ EXPECT_EQ((size_t)buflen, inlen);
+ break;
case FUSE_BMAP:
EXPECT_EQ(inlen, fih + sizeof(in.body.bmap));
EXPECT_EQ((size_t)buflen, inlen);
@@ -699,7 +711,6 @@ void MockFS::audit_request(const mockfs_buf_in &in, ssize_t buflen) {
break;
case FUSE_NOTIFY_REPLY:
case FUSE_BATCH_FORGET:
- case FUSE_FALLOCATE:
case FUSE_IOCTL:
case FUSE_POLL:
case FUSE_READDIRPLUS:
diff --git a/tests/sys/fs/fusefs/mockfs.hh b/tests/sys/fs/fusefs/mockfs.hh
index dd6d259ca5af..e35f2efb8dae 100644
--- a/tests/sys/fs/fusefs/mockfs.hh
+++ b/tests/sys/fs/fusefs/mockfs.hh
@@ -159,6 +159,7 @@ union fuse_payloads_in {
];
fuse_copy_file_range_in copy_file_range;
fuse_create_in create;
+ fuse_fallocate_in fallocate;
fuse_flush_in flush;
fuse_fsync_in fsync;
fuse_fsync_in fsyncdir;
diff --git a/tests/sys/fs/fusefs/utils.cc b/tests/sys/fs/fusefs/utils.cc
index fb2109e1e9c4..508c3af2828f 100644
--- a/tests/sys/fs/fusefs/utils.cc
+++ b/tests/sys/fs/fusefs/utils.cc
@@ -225,6 +225,23 @@ FuseTest::expect_destroy(int error)
})));
}
+void
+FuseTest::expect_fallocate(uint64_t ino, uint64_t offset, uint64_t length,
+ uint32_t mode, int error, int times)
+{
+ EXPECT_CALL(*m_mock, process(
+ ResultOf([=](auto in) {
+ return (in.header.opcode == FUSE_FALLOCATE &&
+ in.header.nodeid == ino &&
+ in.body.fallocate.offset == offset &&
+ in.body.fallocate.length == length &&
+ in.body.fallocate.mode == mode);
+ }, Eq(true)),
+ _)
+ ).Times(times)
+ .WillRepeatedly(Invoke(ReturnErrno(error)));
+}
+
void
FuseTest::expect_flush(uint64_t ino, int times, ProcessMockerT r)
{
diff --git a/tests/sys/fs/fusefs/utils.hh b/tests/sys/fs/fusefs/utils.hh
index 610d2126fa52..1cd7bad97998 100644
--- a/tests/sys/fs/fusefs/utils.hh
+++ b/tests/sys/fs/fusefs/utils.hh
@@ -114,6 +114,14 @@ class FuseTest : public ::testing::Test {
/* Expect FUSE_DESTROY and shutdown the daemon */
void expect_destroy(int error);
+ /*
+ * Create an expectation that FUSE_FALLOCATE will be called with the
+ * given inode, offset, length, and mode, exactly times times and
+ * returning error
+ */
+ void expect_fallocate(uint64_t ino, uint64_t offset, uint64_t length,
+ uint32_t mode, int error, int times=1);
+
/*
* Create an expectation that FUSE_FLUSH will be called times times for
* the given inode