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-rw-r--r--include/linux/user_namespace.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 95142cae446a..b9bd2e6c73cc 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -25,6 +25,7 @@ struct user_namespace {
struct user_namespace *parent;
kuid_t owner;
kgid_t group;
+ unsigned int proc_inum;
};
extern struct user_namespace init_user_ns;
@@ -39,6 +40,7 @@ static inline struct user_namespace *get_user_ns(struct user_namespace *ns)
}
extern int create_user_ns(struct cred *new);
+extern int unshare_userns(unsigned long unshare_flags, struct cred **new_cred);
extern void free_user_ns(struct kref *kref);
static inline void put_user_ns(struct user_namespace *ns)
@@ -66,6 +68,14 @@ static inline int create_user_ns(struct cred *new)
return -EINVAL;
}
+static inline int unshare_userns(unsigned long unshare_flags,
+ struct cred **new_cred)
+{
+ if (unshare_flags & CLONE_NEWUSER)
+ return -EINVAL;
+ return 0;
+}
+
static inline void put_user_ns(struct user_namespace *ns)
{
}