[linux-2.6-block.git] / net / ieee802154 / af_ieee802154.c

/*
 * IEEE802154.4 socket interface
 *
 * Copyright 2007, 2008 Siemens AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Written by:
 * Sergey Lapin <slapin@ossfans.org>
 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
 */

#include <linux/net.h>
#include <linux/capability.h>
#include <linux/module.h>
#include <linux/if_arp.h>
#include <linux/if.h>
#include <linux/termios.h>	/* For TIOCOUTQ/INQ */
#include <linux/list.h>
#include <linux/slab.h>
#include <net/datalink.h>
#include <net/psnap.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <net/route.h>

#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>

#include "af802154.h"

/*
 * Utility function for families
 */
struct net_device*
ieee802154_get_dev(struct net *net, const struct ieee802154_addr *addr)
{
	struct net_device *dev = NULL;
	struct net_device *tmp;
	__le16 pan_id, short_addr;
	u8 hwaddr[IEEE802154_ADDR_LEN];

	switch (addr->mode) {
	case IEEE802154_ADDR_LONG:
		ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
		rcu_read_lock();
		dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
		if (dev)
			dev_hold(dev);
		rcu_read_unlock();
		break;
	case IEEE802154_ADDR_SHORT:
		if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) ||
		    addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) ||
		    addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
			break;

		rtnl_lock();

		for_each_netdev(net, tmp) {
			if (tmp->type != ARPHRD_IEEE802154)
				continue;

			pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
			short_addr =
				ieee802154_mlme_ops(tmp)->get_short_addr(tmp);

			if (pan_id == addr->pan_id &&
			    short_addr == addr->short_addr) {
				dev = tmp;
				dev_hold(dev);
				break;
			}
		}

		rtnl_unlock();
		break;
	default:
		pr_warning("Unsupported ieee802154 address type: %d\n",
				addr->mode);
		break;
	}

	return dev;
}

static int ieee802154_sock_release(struct socket *sock)
{
	struct sock *sk = sock->sk;

	if (sk) {
		sock->sk = NULL;
		sk->sk_prot->close(sk, 0);
	}
	return 0;
}
static int ieee802154_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
		struct msghdr *msg, size_t len)
{
	struct sock *sk = sock->sk;

	return sk->sk_prot->sendmsg(iocb, sk, msg, len);
}

static int ieee802154_sock_bind(struct socket *sock, struct sockaddr *uaddr,
		int addr_len)
{
	struct sock *sk = sock->sk;

	if (sk->sk_prot->bind)
		return sk->sk_prot->bind(sk, uaddr, addr_len);

	return sock_no_bind(sock, uaddr, addr_len);
}

static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr,
			int addr_len, int flags)
{
	struct sock *sk = sock->sk;

	if (addr_len < sizeof(uaddr->sa_family))
		return -EINVAL;

	if (uaddr->sa_family == AF_UNSPEC)
		return sk->sk_prot->disconnect(sk, flags);

	return sk->sk_prot->connect(sk, uaddr, addr_len);
}

static int ieee802154_dev_ioctl(struct sock *sk, struct ifreq __user *arg,
		unsigned int cmd)
{
	struct ifreq ifr;
	int ret = -ENOIOCTLCMD;
	struct net_device *dev;

	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
		return -EFAULT;

	ifr.ifr_name[IFNAMSIZ-1] = 0;

	dev_load(sock_net(sk), ifr.ifr_name);
	dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);

	if (!dev)
		return -ENODEV;

	if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
		ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);

	if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
		ret = -EFAULT;
	dev_put(dev);

	return ret;
}

static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
		unsigned long arg)
{
	struct sock *sk = sock->sk;

	switch (cmd) {
	case SIOCGSTAMP:
		return sock_get_timestamp(sk, (struct timeval __user *)arg);
	case SIOCGSTAMPNS:
		return sock_get_timestampns(sk, (struct timespec __user *)arg);
	case SIOCGIFADDR:
	case SIOCSIFADDR:
		return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
				cmd);
	default:
		if (!sk->sk_prot->ioctl)
			return -ENOIOCTLCMD;
		return sk->sk_prot->ioctl(sk, cmd, arg);
	}
}

static const struct proto_ops ieee802154_raw_ops = {
	.family		   = PF_IEEE802154,
	.owner		   = THIS_MODULE,
	.release	   = ieee802154_sock_release,
	.bind		   = ieee802154_sock_bind,
	.connect	   = ieee802154_sock_connect,
	.socketpair	   = sock_no_socketpair,
	.accept		   = sock_no_accept,
	.getname	   = sock_no_getname,
	.poll		   = datagram_poll,
	.ioctl		   = ieee802154_sock_ioctl,
	.listen		   = sock_no_listen,
	.shutdown	   = sock_no_shutdown,
	.setsockopt	   = sock_common_setsockopt,
	.getsockopt	   = sock_common_getsockopt,
	.sendmsg	   = ieee802154_sock_sendmsg,
	.recvmsg	   = sock_common_recvmsg,
	.mmap		   = sock_no_mmap,
	.sendpage	   = sock_no_sendpage,
#ifdef CONFIG_COMPAT
	.compat_setsockopt = compat_sock_common_setsockopt,
	.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};

static const struct proto_ops ieee802154_dgram_ops = {
	.family		   = PF_IEEE802154,
	.owner		   = THIS_MODULE,
	.release	   = ieee802154_sock_release,
	.bind		   = ieee802154_sock_bind,
	.connect	   = ieee802154_sock_connect,
	.socketpair	   = sock_no_socketpair,
	.accept		   = sock_no_accept,
	.getname	   = sock_no_getname,
	.poll		   = datagram_poll,
	.ioctl		   = ieee802154_sock_ioctl,
	.listen		   = sock_no_listen,
	.shutdown	   = sock_no_shutdown,
	.setsockopt	   = sock_common_setsockopt,
	.getsockopt	   = sock_common_getsockopt,
	.sendmsg	   = ieee802154_sock_sendmsg,
	.recvmsg	   = sock_common_recvmsg,
	.mmap		   = sock_no_mmap,
	.sendpage	   = sock_no_sendpage,
#ifdef CONFIG_COMPAT
	.compat_setsockopt = compat_sock_common_setsockopt,
	.compat_getsockopt = compat_sock_common_getsockopt,
#endif
};


/*
 * Create a socket. Initialise the socket, blank the addresses
 * set the state.
 */
static int ieee802154_create(struct net *net, struct socket *sock,
			     int protocol, int kern)
{
	struct sock *sk;
	int rc;
	struct proto *proto;
	const struct proto_ops *ops;

	if (!net_eq(net, &init_net))
		return -EAFNOSUPPORT;

	switch (sock->type) {
	case SOCK_RAW:
		proto = &ieee802154_raw_prot;
		ops = &ieee802154_raw_ops;
		break;
	case SOCK_DGRAM:
		proto = &ieee802154_dgram_prot;
		ops = &ieee802154_dgram_ops;
		break;
	default:
		rc = -ESOCKTNOSUPPORT;
		goto out;
	}

	rc = -ENOMEM;
	sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
	if (!sk)
		goto out;
	rc = 0;

	sock->ops = ops;

	sock_init_data(sock, sk);
	/* FIXME: sk->sk_destruct */
	sk->sk_family = PF_IEEE802154;

	/* Checksums on by default */
	sock_set_flag(sk, SOCK_ZAPPED);

	if (sk->sk_prot->hash)
		sk->sk_prot->hash(sk);

	if (sk->sk_prot->init) {
		rc = sk->sk_prot->init(sk);
		if (rc)
			sk_common_release(sk);
	}
out:
	return rc;
}

static const struct net_proto_family ieee802154_family_ops = {
	.family		= PF_IEEE802154,
	.create		= ieee802154_create,
	.owner		= THIS_MODULE,
};

static int ieee802154_rcv(struct sk_buff *skb, struct net_device *dev,
	struct packet_type *pt, struct net_device *orig_dev)
{
	if (!netif_running(dev))
		goto drop;
	pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
#ifdef DEBUG
	print_hex_dump_bytes("ieee802154_rcv ", DUMP_PREFIX_NONE, skb->data, skb->len);
#endif

	if (!net_eq(dev_net(dev), &init_net))
		goto drop;

	ieee802154_raw_deliver(dev, skb);

	if (dev->type != ARPHRD_IEEE802154)
		goto drop;

	if (skb->pkt_type != PACKET_OTHERHOST)
		return ieee802154_dgram_deliver(dev, skb);

drop:
	kfree_skb(skb);
	return NET_RX_DROP;
}


static struct packet_type ieee802154_packet_type = {
	.type = htons(ETH_P_IEEE802154),
	.func = ieee802154_rcv,
};

static int __init af_ieee802154_init(void)
{
	int rc = -EINVAL;

	rc = proto_register(&ieee802154_raw_prot, 1);
	if (rc)
		goto out;

	rc = proto_register(&ieee802154_dgram_prot, 1);
	if (rc)
		goto err_dgram;

	/* Tell SOCKET that we are alive */
	rc = sock_register(&ieee802154_family_ops);
	if (rc)
		goto err_sock;
	dev_add_pack(&ieee802154_packet_type);

	rc = 0;
	goto out;

err_sock:
	proto_unregister(&ieee802154_dgram_prot);
err_dgram:
	proto_unregister(&ieee802154_raw_prot);
out:
	return rc;
}
static void __exit af_ieee802154_remove(void)
{
	dev_remove_pack(&ieee802154_packet_type);
	sock_unregister(PF_IEEE802154);
	proto_unregister(&ieee802154_dgram_prot);
	proto_unregister(&ieee802154_raw_prot);
}

module_init(af_ieee802154_init);
module_exit(af_ieee802154_remove);

MODULE_LICENSE("GPL");
MODULE_ALIAS_NETPROTO(PF_IEEE802154);
Commit	Line	Data
9ec76716 SL	1	/*
	2	* IEEE802154.4 socket interface
	3	*
	4	* Copyright 2007, 2008 Siemens AG
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2
	8	* as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along
	16	* with this program; if not, write to the Free Software Foundation, Inc.,
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	18	*
	19	* Written by:
	20	* Sergey Lapin <slapin@ossfans.org>
	21	* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
	22	*/
	23
	24	#include <linux/net.h>
	25	#include <linux/capability.h>
	26	#include <linux/module.h>
	27	#include <linux/if_arp.h>
	28	#include <linux/if.h>
	29	#include <linux/termios.h> /* For TIOCOUTQ/INQ */
	30	#include <linux/list.h>
5a0e3ad6	31	#include <linux/slab.h>
9ec76716 SL	32	#include <net/datalink.h>
	33	#include <net/psnap.h>
	34	#include <net/sock.h>
	35	#include <net/tcp_states.h>
	36	#include <net/route.h>
	37
f0166e5e DES	38	#include <net/af_ieee802154.h>
f0166e5e DES	39	#include <net/ieee802154_netdev.h>
9ec76716 SL	40
	41	#include "af802154.h"
	42
9ec76716 SL	43	/*
	44	* Utility function for families
	45	*/
e6278d92 PB	46	struct net_device*
e6278d92 PB	47	ieee802154_get_dev(struct net net, const struct ieee802154_addr addr)
9ec76716 SL	48	{
	49	struct net_device *dev = NULL;
	50	struct net_device *tmp;
b70ab2e8	51	__le16 pan_id, short_addr;
e6278d92	52	u8 hwaddr[IEEE802154_ADDR_LEN];
9ec76716	53
e6278d92	54	switch (addr->mode) {
9ec76716	55	case IEEE802154_ADDR_LONG:
e6278d92	56	ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
941666c2	57	rcu_read_lock();
e6278d92	58	dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
9ec76716 SL	59	if (dev)
9ec76716 SL	60	dev_hold(dev);
941666c2	61	rcu_read_unlock();
9ec76716 SL	62	break;
9ec76716 SL	63	case IEEE802154_ADDR_SHORT:
e6278d92 PB	64	if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) \|\|
e6278d92 PB	65	addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) \|\|
06324f2f	66	addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
9ec76716 SL	67	break;
	68
	69	rtnl_lock();
	70
	71	for_each_netdev(net, tmp) {
	72	if (tmp->type != ARPHRD_IEEE802154)
	73	continue;
	74
	75	pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
	76	short_addr =
	77	ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
	78
e6278d92 PB	79	if (pan_id == addr->pan_id &&
e6278d92 PB	80	short_addr == addr->short_addr) {
9ec76716 SL	81	dev = tmp;
	82	dev_hold(dev);
	83	break;
	84	}
	85	}
	86
	87	rtnl_unlock();
	88	break;
	89	default:
	90	pr_warning("Unsupported ieee802154 address type: %d\n",
e6278d92	91	addr->mode);
9ec76716 SL	92	break;
	93	}
	94
	95	return dev;
	96	}
	97
	98	static int ieee802154_sock_release(struct socket *sock)
	99	{
	100	struct sock *sk = sock->sk;
	101
	102	if (sk) {
	103	sock->sk = NULL;
	104	sk->sk_prot->close(sk, 0);
	105	}
	106	return 0;
	107	}
	108	static int ieee802154_sock_sendmsg(struct kiocb iocb, struct socket sock,
	109	struct msghdr *msg, size_t len)
	110	{
	111	struct sock *sk = sock->sk;
	112
	113	return sk->sk_prot->sendmsg(iocb, sk, msg, len);
	114	}
	115
	116	static int ieee802154_sock_bind(struct socket sock, struct sockaddr uaddr,
	117	int addr_len)
	118	{
	119	struct sock *sk = sock->sk;
	120
	121	if (sk->sk_prot->bind)
	122	return sk->sk_prot->bind(sk, uaddr, addr_len);
	123
	124	return sock_no_bind(sock, uaddr, addr_len);
	125	}
	126
	127	static int ieee802154_sock_connect(struct socket sock, struct sockaddr uaddr,
	128	int addr_len, int flags)
	129	{
	130	struct sock *sk = sock->sk;
	131
6503d961 CG	132	if (addr_len < sizeof(uaddr->sa_family))
	133	return -EINVAL;
	134
9ec76716 SL	135	if (uaddr->sa_family == AF_UNSPEC)
	136	return sk->sk_prot->disconnect(sk, flags);
	137
	138	return sk->sk_prot->connect(sk, uaddr, addr_len);
	139	}
	140
	141	static int ieee802154_dev_ioctl(struct sock sk, struct ifreq __user arg,
	142	unsigned int cmd)
	143	{
	144	struct ifreq ifr;
45a41d14	145	int ret = -ENOIOCTLCMD;
9ec76716 SL	146	struct net_device *dev;
	147
	148	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
	149	return -EFAULT;
	150
	151	ifr.ifr_name[IFNAMSIZ-1] = 0;
	152
	153	dev_load(sock_net(sk), ifr.ifr_name);
	154	dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
45a41d14	155
93c0c8b4 SS	156	if (!dev)
	157	return -ENODEV;
	158
929122cd	159	if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
9ec76716 SL	160	ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
	161
	162	if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
	163	ret = -EFAULT;
	164	dev_put(dev);
	165
	166	return ret;
	167	}
	168
	169	static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
	170	unsigned long arg)
	171	{
	172	struct sock *sk = sock->sk;
	173
	174	switch (cmd) {
	175	case SIOCGSTAMP:
	176	return sock_get_timestamp(sk, (struct timeval __user *)arg);
	177	case SIOCGSTAMPNS:
	178	return sock_get_timestampns(sk, (struct timespec __user *)arg);
	179	case SIOCGIFADDR:
	180	case SIOCSIFADDR:
	181	return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
	182	cmd);
	183	default:
	184	if (!sk->sk_prot->ioctl)
	185	return -ENOIOCTLCMD;
	186	return sk->sk_prot->ioctl(sk, cmd, arg);
	187	}
	188	}
	189
	190	static const struct proto_ops ieee802154_raw_ops = {
	191	.family = PF_IEEE802154,
	192	.owner = THIS_MODULE,
	193	.release = ieee802154_sock_release,
	194	.bind = ieee802154_sock_bind,
	195	.connect = ieee802154_sock_connect,
	196	.socketpair = sock_no_socketpair,
	197	.accept = sock_no_accept,
	198	.getname = sock_no_getname,
	199	.poll = datagram_poll,
	200	.ioctl = ieee802154_sock_ioctl,
	201	.listen = sock_no_listen,
	202	.shutdown = sock_no_shutdown,
	203	.setsockopt = sock_common_setsockopt,
	204	.getsockopt = sock_common_getsockopt,
	205	.sendmsg = ieee802154_sock_sendmsg,
	206	.recvmsg = sock_common_recvmsg,
	207	.mmap = sock_no_mmap,
	208	.sendpage = sock_no_sendpage,
	209	#ifdef CONFIG_COMPAT
	210	.compat_setsockopt = compat_sock_common_setsockopt,
	211	.compat_getsockopt = compat_sock_common_getsockopt,
	212	#endif
	213	};
	214
	215	static const struct proto_ops ieee802154_dgram_ops = {
	216	.family = PF_IEEE802154,
	217	.owner = THIS_MODULE,
	218	.release = ieee802154_sock_release,
	219	.bind = ieee802154_sock_bind,
	220	.connect = ieee802154_sock_connect,
	221	.socketpair = sock_no_socketpair,
	222	.accept = sock_no_accept,
	223	.getname = sock_no_getname,
224	.poll = datagram_poll,
225	.ioctl = ieee802154_sock_ioctl,
226	.listen = sock_no_listen,
227	.shutdown = sock_no_shutdown,
228	.setsockopt = sock_common_setsockopt,
229	.getsockopt = sock_common_getsockopt,
230	.sendmsg = ieee802154_sock_sendmsg,
231	.recvmsg = sock_common_recvmsg,
232	.mmap = sock_no_mmap,
233	.sendpage = sock_no_sendpage,
234	#ifdef CONFIG_COMPAT
235	.compat_setsockopt = compat_sock_common_setsockopt,
236	.compat_getsockopt = compat_sock_common_getsockopt,
237	#endif
238	};
239
240
241	/*
242	* Create a socket. Initialise the socket, blank the addresses
243	* set the state.
244	*/
245	static int ieee802154_create(struct net net, struct socket sock,
3f378b68	246	int protocol, int kern)
9ec76716 SL	247	{
	248	struct sock *sk;
	249	int rc;
	250	struct proto *proto;
	251	const struct proto_ops *ops;
	252
09ad9bc7	253	if (!net_eq(net, &init_net))
9ec76716 SL	254	return -EAFNOSUPPORT;
	255
	256	switch (sock->type) {
	257	case SOCK_RAW:
	258	proto = &ieee802154_raw_prot;
	259	ops = &ieee802154_raw_ops;
	260	break;
	261	case SOCK_DGRAM:
	262	proto = &ieee802154_dgram_prot;
	263	ops = &ieee802154_dgram_ops;
	264	break;
	265	default:
	266	rc = -ESOCKTNOSUPPORT;
	267	goto out;
	268	}
	269
	270	rc = -ENOMEM;
	271	sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
	272	if (!sk)
	273	goto out;
	274	rc = 0;
	275
	276	sock->ops = ops;
	277
	278	sock_init_data(sock, sk);
	279	/* FIXME: sk->sk_destruct */
	280	sk->sk_family = PF_IEEE802154;
	281
	282	/* Checksums on by default */
	283	sock_set_flag(sk, SOCK_ZAPPED);
	284
	285	if (sk->sk_prot->hash)
	286	sk->sk_prot->hash(sk);
	287
	288	if (sk->sk_prot->init) {
	289	rc = sk->sk_prot->init(sk);
	290	if (rc)
	291	sk_common_release(sk);
	292	}
	293	out:
	294	return rc;
	295	}
	296
ec1b4cf7	297	static const struct net_proto_family ieee802154_family_ops = {
9ec76716 SL	298	.family = PF_IEEE802154,
	299	.create = ieee802154_create,
	300	.owner = THIS_MODULE,
	301	};
	302
	303	static int ieee802154_rcv(struct sk_buff skb, struct net_device dev,
	304	struct packet_type pt, struct net_device orig_dev)
	305	{
9ec76716	306	if (!netif_running(dev))
fa1da883	307	goto drop;
9ec76716	308	pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
25502bda DB	309	#ifdef DEBUG
	310	print_hex_dump_bytes("ieee802154_rcv ", DUMP_PREFIX_NONE, skb->data, skb->len);
	311	#endif
9ec76716 SL	312
	313	if (!net_eq(dev_net(dev), &init_net))
	314	goto drop;
	315
	316	ieee802154_raw_deliver(dev, skb);
	317
	318	if (dev->type != ARPHRD_IEEE802154)
	319	goto drop;
	320
	321	if (skb->pkt_type != PACKET_OTHERHOST)
	322	return ieee802154_dgram_deliver(dev, skb);
	323
	324	drop:
	325	kfree_skb(skb);
	326	return NET_RX_DROP;
	327	}
	328
	329
	330	static struct packet_type ieee802154_packet_type = {
ec633eb5	331	.type = htons(ETH_P_IEEE802154),
9ec76716 SL	332	.func = ieee802154_rcv,
	333	};
	334
	335	static int __init af_ieee802154_init(void)
	336	{
	337	int rc = -EINVAL;
	338
	339	rc = proto_register(&ieee802154_raw_prot, 1);
	340	if (rc)
	341	goto out;
	342
	343	rc = proto_register(&ieee802154_dgram_prot, 1);
	344	if (rc)
	345	goto err_dgram;
	346
	347	/* Tell SOCKET that we are alive */
	348	rc = sock_register(&ieee802154_family_ops);
	349	if (rc)
	350	goto err_sock;
	351	dev_add_pack(&ieee802154_packet_type);
	352
	353	rc = 0;
	354	goto out;
	355
	356	err_sock:
	357	proto_unregister(&ieee802154_dgram_prot);
	358	err_dgram:
	359	proto_unregister(&ieee802154_raw_prot);
	360	out:
	361	return rc;
	362	}
	363	static void __exit af_ieee802154_remove(void)
	364	{
	365	dev_remove_pack(&ieee802154_packet_type);
	366	sock_unregister(PF_IEEE802154);
	367	proto_unregister(&ieee802154_dgram_prot);
	368	proto_unregister(&ieee802154_raw_prot);
	369	}
	370
	371	module_init(af_ieee802154_init);
	372	module_exit(af_ieee802154_remove);
	373
	374	MODULE_LICENSE("GPL");
	375	MODULE_ALIAS_NETPROTO(PF_IEEE802154);