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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-07-21 00:56:48 +0300
committerDavid S. Miller <davem@davemloft.net>2018-07-21 09:44:35 +0300
commit5f81880d5204ee2388fd9a75bb850ccd526885b7 (patch)
tree7f7c7d943e679c97d7bf28f89b499a22109c07ff /fs/sysfs/sysfs.h
parent488dee96bb62f0b3d9e678cf42574034d5b033a5 (diff)
downloadlinux-5f81880d5204ee2388fd9a75bb850ccd526885b7.tar.xz
sysfs, kobject: allow creating kobject belonging to arbitrary users
Normally kobjects and their sysfs representation belong to global root, however it is not necessarily the case for objects in separate namespaces. For example, objects in separate network namespace logically belong to the container's root and not global root. This change lays groundwork for allowing network namespace objects ownership to be transferred to container's root user by defining get_ownership() callback in ktype structure and using it in sysfs code to retrieve desired uid/gid when creating sysfs objects for given kobject. 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/sysfs/sysfs.h')
-rw-r--r--fs/sysfs/sysfs.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index d098e015fcc9..0050cc0c0236 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -27,11 +27,10 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name);
/*
* file.c
*/
-int sysfs_add_file(struct kernfs_node *parent,
- const struct attribute *attr, bool is_bin);
int sysfs_add_file_mode_ns(struct kernfs_node *parent,
const struct attribute *attr, bool is_bin,
- umode_t amode, const void *ns);
+ umode_t amode, kuid_t uid, kgid_t gid,
+ const void *ns);
/*
* symlink.c