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userns: Teach security_path_chown to take kuids and kgids

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Don't make the security modules deal with raw user space uid and
gids instead pass in a kuid_t and a kgid_t so that security modules
only have to deal with internal kernel uids and gids.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: James Morris <james.l.morris@oracle.com>
Cc: John Johansen <john.johansen@canonical.com>
Cc: Kentaro Takeda <takedakn@nttdata.co.jp>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2012-06-01 16:14:19 -06:00
parent 8b94eea4bf
commit d2b31ca644
6 changed files with 14 additions and 12 deletions
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6
include/linux/security.h
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@ -1437,7 +1437,7 @@ struct security_operations {
int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
struct path *new_dir, struct dentry *new_dentry);
int (*path_chmod) (struct path *path, umode_t mode);
int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
int (*path_chown) (struct path *path, kuid_t uid, kgid_t gid);
int (*path_chroot) (struct path *path);
#endif
@ -2832,7 +2832,7 @@ int security_path_link(struct dentry *old_dentry, struct path *new_dir,
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
struct path *new_dir, struct dentry *new_dentry);
int security_path_chmod(struct path *path, umode_t mode);
int security_path_chown(struct path *path, uid_t uid, gid_t gid);
int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
int security_path_chroot(struct path *path);
#else /* CONFIG_SECURITY_PATH */
static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
@ -2888,7 +2888,7 @@ static inline int security_path_chmod(struct path *path, umode_t mode)
return 0;
}
static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
{
return 0;
}