cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

kobject_ns.h (1943B)

      1// SPDX-License-Identifier: GPL-2.0
      2/* Kernel object name space definitions
      3 *
      4 * Copyright (c) 2002-2003 Patrick Mochel
      5 * Copyright (c) 2002-2003 Open Source Development Labs
      6 * Copyright (c) 2006-2008 Greg Kroah-Hartman <greg@kroah.com>
      7 * Copyright (c) 2006-2008 Novell Inc.
      8 *
      9 * Split from kobject.h by David Howells (dhowells@redhat.com)
     10 *
     11 * Please read Documentation/core-api/kobject.rst before using the kobject
     12 * interface, ESPECIALLY the parts about reference counts and object
     13 * destructors.
     14 */
     15
     16#ifndef _LINUX_KOBJECT_NS_H
     17#define _LINUX_KOBJECT_NS_H
     18
     19struct sock;
     20struct kobject;
     21
     22/*
     23 * Namespace types which are used to tag kobjects and sysfs entries.
     24 * Network namespace will likely be the first.
     25 */
     26enum kobj_ns_type {
     27	KOBJ_NS_TYPE_NONE = 0,
     28	KOBJ_NS_TYPE_NET,
     29	KOBJ_NS_TYPES
     30};
     31
     32/*
     33 * Callbacks so sysfs can determine namespaces
     34 *   @grab_current_ns: return a new reference to calling task's namespace
     35 *   @netlink_ns: return namespace to which a sock belongs (right?)
     36 *   @initial_ns: return the initial namespace (i.e. init_net_ns)
     37 *   @drop_ns: drops a reference to namespace
     38 */
     39struct kobj_ns_type_operations {
     40	enum kobj_ns_type type;
     41	bool (*current_may_mount)(void);
     42	void *(*grab_current_ns)(void);
     43	const void *(*netlink_ns)(struct sock *sk);
     44	const void *(*initial_ns)(void);
     45	void (*drop_ns)(void *);
     46};
     47
     48int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
     49int kobj_ns_type_registered(enum kobj_ns_type type);
     50const struct kobj_ns_type_operations *kobj_child_ns_ops(struct kobject *parent);
     51const struct kobj_ns_type_operations *kobj_ns_ops(struct kobject *kobj);
     52
     53bool kobj_ns_current_may_mount(enum kobj_ns_type type);
     54void *kobj_ns_grab_current(enum kobj_ns_type type);
     55const void *kobj_ns_netlink(enum kobj_ns_type type, struct sock *sk);
     56const void *kobj_ns_initial(enum kobj_ns_type type);
     57void kobj_ns_drop(enum kobj_ns_type type, void *ns);
     58
     59#endif /* _LINUX_KOBJECT_NS_H */