diff options
Diffstat (limited to 'include/fuse_common.h')
| -rw-r--r-- | include/fuse_common.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/fuse_common.h b/include/fuse_common.h index 52b691a..f052b67 100644 --- a/include/fuse_common.h +++ b/include/fuse_common.h @@ -368,6 +368,23 @@ struct fuse_loop_config_v1 { #define FUSE_CAP_HANDLE_KILLPRIV (1 << 20) /** + * Indicates that the filesystem is responsible for unsetting + * setuid and setgid bit and additionally cap (stored as xattr) when a + * file is written, truncated, or its owner is changed. + * 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). + * KILLPRIV_V2 requires handling of + * - FUSE_OPEN_KILL_SUIDGID (set in struct fuse_create_in::open_flags) + * - FATTR_KILL_SUIDGID (set in struct fuse_setattr_in::valid) + * - FUSE_WRITE_KILL_SUIDGID (set in struct fuse_write_in::write_flags) + * + * This feature is disabled by default. + */ +#define FUSE_CAP_HANDLE_KILLPRIV_V2 (1 << 21) + +/** * Indicates that the kernel supports caching symlinks in its page cache. * * When this feature is enabled, symlink targets are saved in the page cache. |