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7672d0b5 EP |
1 | /* |
2 | * connector.h | |
3 | * | |
a8018766 | 4 | * 2004-2005 Copyright (c) Evgeniy Polyakov <zbr@ioremap.net> |
7672d0b5 EP |
5 | * All rights reserved. |
6 | * | |
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. | |
11 | * | |
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. | |
16 | * | |
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 | |
20 | */ | |
7672d0b5 EP |
21 | #ifndef __CONNECTOR_H |
22 | #define __CONNECTOR_H | |
23 | ||
7672d0b5 | 24 | |
60063497 | 25 | #include <linux/atomic.h> |
7672d0b5 EP |
26 | |
27 | #include <linux/list.h> | |
28 | #include <linux/workqueue.h> | |
29 | ||
30 | #include <net/sock.h> | |
607ca46e | 31 | #include <uapi/linux/connector.h> |
7672d0b5 EP |
32 | |
33 | #define CN_CBQ_NAMELEN 32 | |
34 | ||
35 | struct cn_queue_dev { | |
36 | atomic_t refcnt; | |
37 | unsigned char name[CN_CBQ_NAMELEN]; | |
38 | ||
7672d0b5 EP |
39 | struct list_head queue_list; |
40 | spinlock_t queue_lock; | |
41 | ||
7672d0b5 EP |
42 | struct sock *nls; |
43 | }; | |
44 | ||
acd042bb | 45 | struct cn_callback_id { |
7672d0b5 | 46 | unsigned char name[CN_CBQ_NAMELEN]; |
7672d0b5 | 47 | struct cb_id id; |
acd042bb EP |
48 | }; |
49 | ||
7672d0b5 EP |
50 | struct cn_callback_entry { |
51 | struct list_head callback_entry; | |
04f482fa | 52 | atomic_t refcnt; |
7672d0b5 EP |
53 | struct cn_queue_dev *pdev; |
54 | ||
acd042bb | 55 | struct cn_callback_id id; |
04f482fa | 56 | void (*callback) (struct cn_msg *, struct netlink_skb_parms *); |
7672d0b5 | 57 | |
6e32814b | 58 | u32 seq, group; |
7672d0b5 EP |
59 | }; |
60 | ||
7672d0b5 EP |
61 | struct cn_dev { |
62 | struct cb_id id; | |
63 | ||
64 | u32 seq, groups; | |
65 | struct sock *nls; | |
cd40b7d3 | 66 | void (*input) (struct sk_buff *skb); |
7672d0b5 EP |
67 | |
68 | struct cn_queue_dev *cbdev; | |
69 | }; | |
70 | ||
008536e8 JP |
71 | int cn_add_callback(struct cb_id *id, const char *name, |
72 | void (*callback)(struct cn_msg *, struct netlink_skb_parms *)); | |
7672d0b5 | 73 | void cn_del_callback(struct cb_id *); |
34470e0b | 74 | int cn_netlink_send_mult(struct cn_msg *msg, u16 len, u32 portid, u32 group, gfp_t gfp_mask); |
ac8f7330 | 75 | int cn_netlink_send(struct cn_msg *msg, u32 portid, u32 group, gfp_t gfp_mask); |
7672d0b5 | 76 | |
008536e8 JP |
77 | int cn_queue_add_callback(struct cn_queue_dev *dev, const char *name, |
78 | struct cb_id *id, | |
79 | void (*callback)(struct cn_msg *, struct netlink_skb_parms *)); | |
7672d0b5 | 80 | void cn_queue_del_callback(struct cn_queue_dev *dev, struct cb_id *id); |
04f482fa | 81 | void cn_queue_release_callback(struct cn_callback_entry *); |
7672d0b5 | 82 | |
008536e8 | 83 | struct cn_queue_dev *cn_queue_alloc_dev(const char *name, struct sock *); |
7672d0b5 EP |
84 | void cn_queue_free_dev(struct cn_queue_dev *dev); |
85 | ||
86 | int cn_cb_equal(struct cb_id *, struct cb_id *); | |
87 | ||
7672d0b5 | 88 | #endif /* __CONNECTOR_H */ |