From: "Dr. David Alan Gilbert" <dgilb...@redhat.com> Hi, This is a full set for virtiofsd - a daemon that implements the user space side of virtiofs.
I've addressed most review comments from V1; we've got 95 Reviewed-by's out of 110 - I'd like to get a PULL out ASAP. The set pulls in a big chunk of the upstream libfuse library (unmodified so that it's easy to check it really is upstream), chops all the stuff out we don't need and then adds the new transport we need. I've formatted everything into qemu's code style - using indent and the clang tools for the files I've imported. We can't just link with libfuse, since we have to make ABI incompatible changes for the new transport and it's quite invasive; the library is designed to be the basis for multiple filesystems, but all on the same transport. Running this daemon is typically done with: ./virtiofsd --socket-path=/path/socket -o source=/path/to/fs connected to a qemu that's then started with: -chardev socket,id=char0,path=/path/socket -device vhost-user-fs-pci,queue-size=1024,chardev=char0,tag=myfs and then in the guest mount with: mount -t virtiofs myfs /mnt Our development branch is: https://gitlab.com/virtio-fs/qemu/tree/virtio-fs-dev This code is going into tools/virtiofsd based on the previous long discussion. Thank you to all those who have contributed code and to those who have reviewed the previous version. Dave Dr. David Alan Gilbert (35): virtiofsd: Pull in upstream headers virtiofsd: Pull in kernel's fuse.h virtiofsd: Add auxiliary .c's virtiofsd: Add fuse_lowlevel.c virtiofsd: Add passthrough_ll virtiofsd: Trim down imported files virtiofsd: Format imported files to qemu style virtiofsd: Fix fuse_daemonize ignored return values virtiofsd: Fix common header and define for QEMU builds virtiofsd: Trim out compatibility code virtiofsd: Add options for virtio virtiofsd: Open vhost connection instead of mounting virtiofsd: Start wiring up vhost-user virtiofsd: Add main virtio loop virtiofsd: get/set features callbacks virtiofsd: Start queue threads virtiofsd: Poll kick_fd for queue virtiofsd: Start reading commands from queue virtiofsd: Send replies to messages virtiofsd: Keep track of replies virtiofsd: Add Makefile wiring for virtiofsd contrib virtiofsd: Fast path for virtio read virtiofs: Add maintainers entry virtiofsd: Plumb fuse_bufvec through to do_write_buf virtiofsd: Pass write iov's all the way through virtiofsd: cap-ng helpers docs: Add docs/tools virtiofsd: Handle reinit virtiofsd: Handle hard reboot virtiofsd: Kill threads when queues are stopped vhost-user: Print unexpected slave message types contrib/libvhost-user: Protect slave fd with mutex virtiofsd: Clean up inodes on destroy libvhost-user: Fix some memtable remap cases virtiofsd: Convert lo_destroy to take the lo->mutex lock itself Eric Ren (1): virtiofsd: fix incorrect error handling in lo_do_lookup Eryu Guan (3): virtiofsd: print log only when priority is high enough virtiofsd: convert more fprintf and perror to use fuse log infra virtiofsd: stop all queue threads on exit in virtio_loop() Jiufei Xue (1): virtiofsd: support nanosecond resolution for file timestamp Liu Bo (6): virtiofsd: fix error handling in main() virtiofsd: cleanup allocated resource in se virtiofsd: fix memory leak on lo.source virtiofsd: add helper for lo_data cleanup virtiofsd: enable PARALLEL_DIROPS during INIT Virtiofsd: fix memory leak on fuse queueinfo Masayoshi Mizuma (4): virtiofsd: Add ID to the log with FUSE_LOG_DEBUG level virtiofsd: Add timestamp to the log with FUSE_LOG_DEBUG level virtiofsd: Prevent multiply running with same vhost_user_socket virtiofsd: add some options to the help message Miklos Szeredi (10): virtiofsd: passthrough_ll: add fallback for racy ops virtiofsd: passthrough_ll: add renameat2 support virtiofsd: passthrough_ll: disable readdirplus on cache=never virtiofsd: passthrough_ll: control readdirplus virtiofsd: rename unref_inode() to unref_inode_lolocked() virtiofsd: fail when parent inode isn't known in lo_do_lookup() virtiofsd: extract root inode init into setup_root() virtiofsd: passthrough_ll: clean up cache related options virtiofsd: passthrough_ll: use hashtable virtiofsd: passthrough_ll: fix refcounting on remove/rename Misono Tomohiro (1): virtiofsd: Fix data corruption with O_APPEND write in writeback mode Peng Tao (1): virtiofsd: do not always set FUSE_FLOCK_LOCKS Stefan Hajnoczi (37): virtiofsd: remove mountpoint dummy argument virtiofsd: remove unused notify reply support virtiofsd: add -o source=PATH to help output virtiofsd: add --fd=FDNUM fd passing option virtiofsd: make -f (foreground) the default virtiofsd: add vhost-user.json file virtiofsd: add --print-capabilities option virtiofsd: passthrough_ll: add lo_map for ino/fh indirection virtiofsd: passthrough_ll: add ino_map to hide lo_inode pointers virtiofsd: passthrough_ll: add dirp_map to hide lo_dirp pointers virtiofsd: passthrough_ll: add fd_map to hide file descriptors virtiofsd: validate path components virtiofsd: add fuse_mbuf_iter API virtiofsd: validate input buffer sizes in do_write_buf() virtiofsd: check input buffer size in fuse_lowlevel.c ops virtiofsd: prevent ".." escape in lo_do_lookup() virtiofsd: prevent ".." escape in lo_do_readdir() virtiofsd: use /proc/self/fd/ O_PATH file descriptor virtiofsd: sandbox mount namespace virtiofsd: move to an empty network namespace virtiofsd: move to a new pid namespace virtiofsd: add seccomp whitelist virtiofsd: set maximum RLIMIT_NOFILE limit virtiofsd: fix libfuse information leaks virtiofsd: add security guide document virtiofsd: add --syslog command-line option virtiofsd: use fuse_lowlevel_is_virtio() in fuse_session_destroy() virtiofsd: prevent fv_queue_thread() vs virtio_loop() races virtiofsd: make lo_release() atomic virtiofsd: prevent races with lo_dirp_put() virtiofsd: rename inode->refcount to inode->nlookup virtiofsd: add man page virtiofsd: introduce inode refcount to prevent use-after-free virtiofsd: process requests in a thread pool virtiofsd: prevent FUSE_INIT/FUSE_DESTROY races virtiofsd: fix lo_destroy() resource leaks virtiofsd: add --thread-pool-size=NUM option Vivek Goyal (6): virtiofsd: Make fsync work even if only inode is passed in virtiofsd: passthrough_ll: create new files in caller's context virtiofsd: Parse flag FUSE_WRITE_KILL_PRIV virtiofsd: Drop CAP_FSETID if client asked for it virtiofsd: Support remote posix locks virtiofsd: Reset O_DIRECT flag during file open Xiao Yang (2): vitriofsd/passthrough_ll: fix fallocate() ifdefs virtiofsd/passthrough_ll: Pass errno to fuse_reply_err() piaojun (2): virtiofsd: add definition of fuse_buf_writev() virtiofsd: use fuse_buf_writev to replace fuse_buf_write for better performance .gitignore | 1 + MAINTAINERS | 8 + Makefile | 27 +- Makefile.objs | 1 + configure | 16 + contrib/libvhost-user/libvhost-user.c | 57 +- contrib/libvhost-user/libvhost-user.h | 6 + docs/index.rst | 1 + docs/interop/vhost-user.json | 4 +- docs/tools/conf.py | 16 + docs/tools/index.rst | 14 + docs/tools/virtiofsd-security.rst | 118 + hw/virtio/vhost-user.c | 2 +- include/standard-headers/linux/fuse.h | 891 ++++++ scripts/update-linux-headers.sh | 1 + tools/virtiofsd/50-qemu-virtiofsd.json.in | 5 + tools/virtiofsd/Makefile.objs | 12 + tools/virtiofsd/buffer.c | 351 +++ tools/virtiofsd/fuse.h | 1249 +++++++++ tools/virtiofsd/fuse_common.h | 860 ++++++ tools/virtiofsd/fuse_i.h | 115 + tools/virtiofsd/fuse_log.c | 40 + tools/virtiofsd/fuse_log.h | 74 + tools/virtiofsd/fuse_lowlevel.c | 2779 +++++++++++++++++++ tools/virtiofsd/fuse_lowlevel.h | 2023 ++++++++++++++ tools/virtiofsd/fuse_misc.h | 60 + tools/virtiofsd/fuse_opt.c | 449 +++ tools/virtiofsd/fuse_opt.h | 272 ++ tools/virtiofsd/fuse_signals.c | 97 + tools/virtiofsd/fuse_virtio.c | 985 +++++++ tools/virtiofsd/fuse_virtio.h | 33 + tools/virtiofsd/helper.c | 349 +++ tools/virtiofsd/passthrough_helpers.h | 51 + tools/virtiofsd/passthrough_ll.c | 3006 +++++++++++++++++++++ tools/virtiofsd/seccomp.c | 164 ++ tools/virtiofsd/seccomp.h | 16 + tools/virtiofsd/virtiofsd.texi | 104 + 37 files changed, 14242 insertions(+), 15 deletions(-) create mode 100644 docs/tools/conf.py create mode 100644 docs/tools/index.rst create mode 100644 docs/tools/virtiofsd-security.rst create mode 100644 include/standard-headers/linux/fuse.h create mode 100644 tools/virtiofsd/50-qemu-virtiofsd.json.in create mode 100644 tools/virtiofsd/Makefile.objs create mode 100644 tools/virtiofsd/buffer.c create mode 100644 tools/virtiofsd/fuse.h create mode 100644 tools/virtiofsd/fuse_common.h create mode 100644 tools/virtiofsd/fuse_i.h create mode 100644 tools/virtiofsd/fuse_log.c create mode 100644 tools/virtiofsd/fuse_log.h create mode 100644 tools/virtiofsd/fuse_lowlevel.c create mode 100644 tools/virtiofsd/fuse_lowlevel.h create mode 100644 tools/virtiofsd/fuse_misc.h create mode 100644 tools/virtiofsd/fuse_opt.c create mode 100644 tools/virtiofsd/fuse_opt.h create mode 100644 tools/virtiofsd/fuse_signals.c create mode 100644 tools/virtiofsd/fuse_virtio.c create mode 100644 tools/virtiofsd/fuse_virtio.h create mode 100644 tools/virtiofsd/helper.c create mode 100644 tools/virtiofsd/passthrough_helpers.h create mode 100644 tools/virtiofsd/passthrough_ll.c create mode 100644 tools/virtiofsd/seccomp.c create mode 100644 tools/virtiofsd/seccomp.h create mode 100644 tools/virtiofsd/virtiofsd.texi -- 2.24.1
