]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/connector.h
4 * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <asm/types.h>
27 #define CN_IDX_CONNECTOR 0xffffffff
28 #define CN_VAL_CONNECTOR 0xffffffff
30 #define CN_NETLINK_USERS 1
33 * Maximum connector's message size.
35 #define CONNECTOR_MAX_MSG_SIZE 1024
38 * idx and val are unique identifiers which
39 * are used for message routing and
40 * must be registered in connector.h for in-kernel usage.
54 __u16 len
; /* Length of the following data */
60 * Notify structure - requests notification about
61 * registering/unregistering idx/val in range [first, first+range].
63 struct cn_notify_req
{
69 * Main notification control message
70 * *_notify_num - number of appropriate cn_notify_req structures after
72 * group - notification receiver's idx.
73 * len - total length of the attached data.
85 #include <asm/atomic.h>
87 #include <linux/list.h>
88 #include <linux/workqueue.h>
92 #define CN_CBQ_NAMELEN 32
96 unsigned char name
[CN_CBQ_NAMELEN
];
98 struct workqueue_struct
*cn_queue
;
100 struct list_head queue_list
;
101 spinlock_t queue_lock
;
107 struct cn_callback_id
{
108 unsigned char name
[CN_CBQ_NAMELEN
];
112 struct cn_callback_data
{
113 void (*destruct_data
) (void *);
117 void (*callback
) (void *);
122 struct cn_callback_entry
{
123 struct list_head callback_entry
;
124 struct cn_callback
*cb
;
125 struct work_struct work
;
126 struct cn_queue_dev
*pdev
;
128 struct cn_callback_id id
;
129 struct cn_callback_data data
;
135 struct cn_ctl_entry
{
136 struct list_head notify_entry
;
137 struct cn_ctl_msg
*msg
;
145 void (*input
) (struct sock
* sk
, int len
);
147 struct cn_queue_dev
*cbdev
;
150 int cn_add_callback(struct cb_id
*, char *, void (*callback
) (void *));
151 void cn_del_callback(struct cb_id
*);
152 int cn_netlink_send(struct cn_msg
*, u32
, gfp_t
);
154 int cn_queue_add_callback(struct cn_queue_dev
*dev
, char *name
, struct cb_id
*id
, void (*callback
)(void *));
155 void cn_queue_del_callback(struct cn_queue_dev
*dev
, struct cb_id
*id
);
157 struct cn_queue_dev
*cn_queue_alloc_dev(char *name
, struct sock
*);
158 void cn_queue_free_dev(struct cn_queue_dev
*dev
);
160 int cn_cb_equal(struct cb_id
*, struct cb_id
*);
162 void cn_queue_wrapper(void *data
);
164 extern int cn_already_initialized
;
166 #endif /* __KERNEL__ */
167 #endif /* __CONNECTOR_H */