1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* w1_netlink.c
*
* Copyright (c) 2003 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/skbuff.h>
#include <linux/netlink.h>
#include "w1.h"
#include "w1_log.h"
#include "w1_netlink.h"
#ifndef NETLINK_DISABLED
void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
{
unsigned int size;
struct sk_buff *skb;
struct w1_netlink_msg *data;
struct nlmsghdr *nlh;
if (!dev->nls)
return;
size = NLMSG_SPACE(sizeof(struct w1_netlink_msg));
skb = alloc_skb(size, GFP_ATOMIC);
if (!skb) {
dev_err(&dev->dev, "skb_alloc() failed.\n");
return;
}
nlh = NLMSG_PUT(skb, 0, dev->seq++, NLMSG_DONE, size - sizeof(*nlh));
data = (struct w1_netlink_msg *)NLMSG_DATA(nlh);
memcpy(data, msg, sizeof(struct w1_netlink_msg));
NETLINK_CB(skb).dst_group = dev->groups;
netlink_broadcast(dev->nls, skb, 0, dev->groups, GFP_ATOMIC);
nlmsg_failure:
return;
}
#else
#warning Netlink support is disabled. Please compile with NET support enabled.
void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
{
}
#endif
|
