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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-17 11:34:25 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-17 11:34:25 -0800 |
commit | 65de0b89d7d5e173d71cb50dfae786133c579308 (patch) | |
tree | 677c7f4a6b2914921cc9d685d961d0152293287b /include | |
parent | ff49c86f27e4726a86f5034543e6e684daf41955 (diff) | |
parent | 5d069dbe8aaf2a197142558b6fb2978189ba3454 (diff) | |
download | linux-65de0b89d7d5e173d71cb50dfae786133c579308.tar.bz2 |
Merge tag 'fuse-update-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Improve performance of virtio-fs in mixed read/write workloads
- Try to revalidate cache before returning EEXIST on exclusive create
- Add a couple of miscellaneous bug fixes as well as some code cleanups
* tag 'fuse-update-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix bad inode
fuse: support SB_NOSEC flag to improve write performance
fuse: add a flag FUSE_OPEN_KILL_SUIDGID for open() request
fuse: don't send ATTR_MODE to kill suid/sgid for handle_killpriv_v2
fuse: setattr should set FATTR_KILL_SUIDGID
fuse: set FUSE_WRITE_KILL_SUIDGID in cached write path
fuse: rename FUSE_WRITE_KILL_PRIV to FUSE_WRITE_KILL_SUIDGID
fuse: introduce the notion of FUSE_HANDLE_KILLPRIV_V2
fuse: always revalidate if exclusive create
virtiofs: clean up error handling in virtio_fs_get_tree()
fuse: add fuse_sb_destroy() helper
fuse: simplify get_fuse_conn*()
fuse: get rid of fuse_mount refcount
virtiofs: simplify sb setup
virtiofs fix leak in setup
fuse: launder page should wait for page writeback
Diffstat (limited to 'include')
-rw-r--r-- | include/uapi/linux/fuse.h | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index 7233502ea991..98ca64d1beb6 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h @@ -175,6 +175,10 @@ * * 7.32 * - add flags to fuse_attr, add FUSE_ATTR_SUBMOUNT, add FUSE_SUBMOUNTS + * + * 7.33 + * - add FUSE_HANDLE_KILLPRIV_V2, FUSE_WRITE_KILL_SUIDGID, FATTR_KILL_SUIDGID + * - add FUSE_OPEN_KILL_SUIDGID */ #ifndef _LINUX_FUSE_H @@ -210,7 +214,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 32 +#define FUSE_KERNEL_MINOR_VERSION 33 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -271,6 +275,7 @@ struct fuse_file_lock { #define FATTR_MTIME_NOW (1 << 8) #define FATTR_LOCKOWNER (1 << 9) #define FATTR_CTIME (1 << 10) +#define FATTR_KILL_SUIDGID (1 << 11) /** * Flags returned by the OPEN request @@ -320,6 +325,11 @@ struct fuse_file_lock { * foffset and moffset fields in struct * fuse_setupmapping_out and fuse_removemapping_one. * FUSE_SUBMOUNTS: kernel supports auto-mounting directory submounts + * FUSE_HANDLE_KILLPRIV_V2: fs kills suid/sgid/cap on write/chown/trunc. + * Upon write/truncate suid/sgid is only killed if caller + * does not have CAP_FSETID. Additionally upon + * write/truncate sgid is killed only if file has group + * execute permission. (Same as Linux VFS behavior). */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -349,6 +359,7 @@ struct fuse_file_lock { #define FUSE_EXPLICIT_INVAL_DATA (1 << 25) #define FUSE_MAP_ALIGNMENT (1 << 26) #define FUSE_SUBMOUNTS (1 << 27) +#define FUSE_HANDLE_KILLPRIV_V2 (1 << 28) /** * CUSE INIT request/reply flags @@ -378,11 +389,14 @@ struct fuse_file_lock { * * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed * FUSE_WRITE_LOCKOWNER: lock_owner field is valid - * FUSE_WRITE_KILL_PRIV: kill suid and sgid bits + * FUSE_WRITE_KILL_SUIDGID: kill suid and sgid bits */ #define FUSE_WRITE_CACHE (1 << 0) #define FUSE_WRITE_LOCKOWNER (1 << 1) -#define FUSE_WRITE_KILL_PRIV (1 << 2) +#define FUSE_WRITE_KILL_SUIDGID (1 << 2) + +/* Obsolete alias; this flag implies killing suid/sgid only. */ +#define FUSE_WRITE_KILL_PRIV FUSE_WRITE_KILL_SUIDGID /** * Read flags @@ -431,6 +445,12 @@ struct fuse_file_lock { */ #define FUSE_ATTR_SUBMOUNT (1 << 0) +/** + * Open flags + * FUSE_OPEN_KILL_SUIDGID: Kill suid and sgid if executable + */ +#define FUSE_OPEN_KILL_SUIDGID (1 << 0) + enum fuse_opcode { FUSE_LOOKUP = 1, FUSE_FORGET = 2, /* no reply */ @@ -592,14 +612,14 @@ struct fuse_setattr_in { struct fuse_open_in { uint32_t flags; - uint32_t unused; + uint32_t open_flags; /* FUSE_OPEN_... */ }; struct fuse_create_in { uint32_t flags; uint32_t mode; uint32_t umask; - uint32_t padding; + uint32_t open_flags; /* FUSE_OPEN_... */ }; struct fuse_open_out { |