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607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
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* connector.h
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*
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* 2004-2005 Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __CONNECTOR_H
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#define __CONNECTOR_H
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#include <linux/atomic.h>
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#include <linux/list.h>
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#include <linux/workqueue.h>
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#include <net/sock.h>
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#include <uapi/linux/connector.h>
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#define CN_CBQ_NAMELEN 32
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struct cn_queue_dev {
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atomic_t refcnt;
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unsigned char name[CN_CBQ_NAMELEN];
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struct list_head queue_list;
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spinlock_t queue_lock;
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struct sock *nls;
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};
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struct cn_callback_id {
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unsigned char name[CN_CBQ_NAMELEN];
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struct cb_id id;
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};
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struct cn_callback_entry {
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struct list_head callback_entry;
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atomic_t refcnt;
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struct cn_queue_dev *pdev;
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struct cn_callback_id id;
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void (*callback) (struct cn_msg *, struct netlink_skb_parms *);
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u32 seq, group;
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};
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struct cn_dev {
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struct cb_id id;
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u32 seq, groups;
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struct sock *nls;
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void (*input) (struct sk_buff *skb);
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struct cn_queue_dev *cbdev;
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};
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int cn_add_callback(struct cb_id *id, const char *name,
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void (*callback)(struct cn_msg *, struct netlink_skb_parms *));
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void cn_del_callback(struct cb_id *);
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int cn_netlink_send(struct cn_msg *, u32, gfp_t);
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int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name,
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struct cb_id *id,
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void (*callback)(struct cn_msg *, struct netlink_skb_parms *));
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void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id);
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void cn_queue_release_callback(struct cn_callback_entry *);
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struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *);
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void cn_queue_free_dev(struct cn_queue_dev *dev);
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int cn_cb_equal(struct cb_id *, struct cb_id *);
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#endif /* __CONNECTOR_H */
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