4 * Copyright (c) 2003 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
22 #include <linux/skbuff.h>
23 #include <linux/netlink.h>
27 #include "w1_netlink.h"
29 #ifndef NETLINK_DISABLED
30 void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
34 struct w1_netlink_msg *data;
40 size = NLMSG_SPACE(sizeof(struct w1_netlink_msg));
42 skb = alloc_skb(size, GFP_ATOMIC);
44 dev_err(&dev->dev, "skb_alloc() failed.\n");
48 nlh = NLMSG_PUT(skb, 0, dev->seq++, NLMSG_DONE, size - sizeof(*nlh));
50 data = (struct w1_netlink_msg *)NLMSG_DATA(nlh);
52 memcpy(data, msg, sizeof(struct w1_netlink_msg));
54 NETLINK_CB(skb).dst_group = dev->groups;
55 netlink_broadcast(dev->nls, skb, 0, dev->groups, GFP_ATOMIC);
61 int dev_init_netlink(struct w1_master *dev)
63 dev->nls = netlink_kernel_create(NETLINK_W1, 1, NULL, THIS_MODULE);
65 printk(KERN_ERR "Failed to create new netlink socket(%u) for w1 master %s.\n",
66 NETLINK_W1, dev->dev.bus_id);
72 void dev_fini_netlink(struct w1_master *dev)
74 if (dev->nls && dev->nls->sk_socket)
75 sock_release(dev->nls->sk_socket);
78 #warning Netlink support is disabled. Please compile with NET support enabled.
80 void w1_netlink_send(struct w1_master *dev, struct w1_netlink_msg *msg)
84 int dev_init_netlink(struct w1_master *dev)
89 void dev_fini_netlink(struct w1_master *dev)