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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-07-20 23:56:47 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-21 08:44:35 +0200 |
| commit | 488dee96bb62f0b3d9e678cf42574034d5b033a5 (patch) | |
| tree | 2969d47ffb0ffeaf15d20ffb0eda78a2bb694a40 /fs/kernfs/kernfs-internal.h | |
| parent | net: Init backlog NAPI's gro_hash. (diff) | |
| download | linux-488dee96bb62f0b3d9e678cf42574034d5b033a5.tar.xz linux-488dee96bb62f0b3d9e678cf42574034d5b033a5.zip | |
kernfs: allow creating kernfs objects with arbitrary uid/gid
This change allows creating kernfs files and directories with arbitrary
uid/gid instead of always using GLOBAL_ROOT_UID/GID by extending
kernfs_create_dir_ns() and kernfs_create_file_ns() with uid/gid arguments.
The "simple" kernfs_create_file() and kernfs_create_dir() are left alone
and always create objects belonging to the global root.
When creating symlinks ownership (uid/gid) is taken from the target kernfs
object.
Co-Developed-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/kernfs/kernfs-internal.h')
| -rw-r--r-- | fs/kernfs/kernfs-internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h index 0f260dcca177..3d83b114bb08 100644 --- a/fs/kernfs/kernfs-internal.h +++ b/fs/kernfs/kernfs-internal.h @@ -90,6 +90,7 @@ int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr); int kernfs_iop_getattr(const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags); ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size); +int __kernfs_setattr(struct kernfs_node *kn, const struct iattr *iattr); /* * dir.c @@ -104,6 +105,7 @@ void kernfs_put_active(struct kernfs_node *kn); int kernfs_add_one(struct kernfs_node *kn); struct kernfs_node *kernfs_new_node(struct kernfs_node *parent, const char *name, umode_t mode, + kuid_t uid, kgid_t gid, unsigned flags); struct kernfs_node *kernfs_find_and_get_node_by_ino(struct kernfs_root *root, unsigned int ino); |