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
31 * Process Events connector unique ids -- used for message routing
33 #define CN_IDX_PROC 0x1
34 #define CN_VAL_PROC 0x1
35 #define CN_IDX_CIFS 0x2
36 #define CN_VAL_CIFS 0x1
37 #define CN_W1_IDX 0x3 /* w1 communication */
39 #define CN_IDX_SX1SND 0x4
40 #define CN_VAL_SX1SND 0x1
41 #define CN_IDX_SX1PM 0x5
42 #define CN_VAL_SX1PM 0x1
45 #define CN_NETLINK_USERS 6
48 * Maximum connector's message size.
50 #define CONNECTOR_MAX_MSG_SIZE 1024
53 * idx and val are unique identifiers which
54 * are used for message routing and
55 * must be registered in connector.h for in-kernel usage.
69 __u16 len; /* Length of the following data */
75 * Notify structure - requests notification about
76 * registering/unregistering idx/val in range [first, first+range].
78 struct cn_notify_req {
84 * Main notification control message
85 * *_notify_num - number of appropriate cn_notify_req structures after
87 * group - notification receiver's idx.
88 * len - total length of the attached data.
100 #include <asm/atomic.h>
102 #include <linux/list.h>
103 #include <linux/workqueue.h>
105 #include <net/sock.h>
107 #define CN_CBQ_NAMELEN 32
109 struct cn_queue_dev {
111 unsigned char name[CN_CBQ_NAMELEN];
113 struct workqueue_struct *cn_queue;
115 struct list_head queue_list;
116 spinlock_t queue_lock;
122 struct cn_callback_id {
123 unsigned char name[CN_CBQ_NAMELEN];
127 struct cn_callback_data {
128 void (*destruct_data) (void *);
132 void (*callback) (void *);
137 struct cn_callback_entry {
138 struct list_head callback_entry;
139 struct cn_callback *cb;
140 struct work_struct work;
141 struct cn_queue_dev *pdev;
143 struct cn_callback_id id;
144 struct cn_callback_data data;
150 struct cn_ctl_entry {
151 struct list_head notify_entry;
152 struct cn_ctl_msg *msg;
160 void (*input) (struct sock * sk, int len);
162 struct cn_queue_dev *cbdev;
165 int cn_add_callback(struct cb_id *, char *, void (*callback) (void *));
166 void cn_del_callback(struct cb_id *);
167 int cn_netlink_send(struct cn_msg *, u32, gfp_t);
169 int cn_queue_add_callback(struct cn_queue_dev *dev, char *name, struct cb_id *id, void (*callback)(void *));
170 void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id);
172 struct cn_queue_dev *cn_queue_alloc_dev(char *name, struct sock *);
173 void cn_queue_free_dev(struct cn_queue_dev *dev);
175 int cn_cb_equal(struct cb_id *, struct cb_id *);
177 void cn_queue_wrapper(struct work_struct *work);
179 extern int cn_already_initialized;
181 #endif /* __KERNEL__ */
182 #endif /* __CONNECTOR_H */