[mirror_ubuntu-bionic-kernel.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.
 *
 * 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_warn("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	*
9ec76716 SL	15	* Written by:
	16	* Sergey Lapin <slapin@ossfans.org>
	17	* Maxim Gorbachyov <maxim.gorbachev@siemens.com>
	18	*/
	19
	20	#include <linux/net.h>
	21	#include <linux/capability.h>
	22	#include <linux/module.h>
	23	#include <linux/if_arp.h>
	24	#include <linux/if.h>
	25	#include <linux/termios.h> /* For TIOCOUTQ/INQ */
	26	#include <linux/list.h>
5a0e3ad6	27	#include <linux/slab.h>
9ec76716 SL	28	#include <net/datalink.h>
	29	#include <net/psnap.h>
	30	#include <net/sock.h>
	31	#include <net/tcp_states.h>
	32	#include <net/route.h>
	33
f0166e5e DES	34	#include <net/af_ieee802154.h>
f0166e5e DES	35	#include <net/ieee802154_netdev.h>
9ec76716 SL	36
	37	#include "af802154.h"
	38
4710d806	39	/* Utility function for families */
e6278d92 PB	40	struct net_device*
e6278d92 PB	41	ieee802154_get_dev(struct net net, const struct ieee802154_addr addr)
9ec76716 SL	42	{
	43	struct net_device *dev = NULL;
	44	struct net_device *tmp;
b70ab2e8	45	__le16 pan_id, short_addr;
e6278d92	46	u8 hwaddr[IEEE802154_ADDR_LEN];
9ec76716	47
e6278d92	48	switch (addr->mode) {
9ec76716	49	case IEEE802154_ADDR_LONG:
e6278d92	50	ieee802154_devaddr_to_raw(hwaddr, addr->extended_addr);
941666c2	51	rcu_read_lock();
e6278d92	52	dev = dev_getbyhwaddr_rcu(net, ARPHRD_IEEE802154, hwaddr);
9ec76716 SL	53	if (dev)
9ec76716 SL	54	dev_hold(dev);
941666c2	55	rcu_read_unlock();
9ec76716 SL	56	break;
9ec76716 SL	57	case IEEE802154_ADDR_SHORT:
e6278d92 PB	58	if (addr->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST) \|\|
e6278d92 PB	59	addr->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) \|\|
06324f2f	60	addr->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST))
9ec76716 SL	61	break;
	62
	63	rtnl_lock();
	64
	65	for_each_netdev(net, tmp) {
	66	if (tmp->type != ARPHRD_IEEE802154)
	67	continue;
	68
	69	pan_id = ieee802154_mlme_ops(tmp)->get_pan_id(tmp);
	70	short_addr =
	71	ieee802154_mlme_ops(tmp)->get_short_addr(tmp);
	72
e6278d92 PB	73	if (pan_id == addr->pan_id &&
e6278d92 PB	74	short_addr == addr->short_addr) {
9ec76716 SL	75	dev = tmp;
	76	dev_hold(dev);
	77	break;
	78	}
	79	}
	80
	81	rtnl_unlock();
	82	break;
	83	default:
4710d806 VB	84	pr_warn("Unsupported ieee802154 address type: %d\n",
4710d806 VB	85	addr->mode);
9ec76716 SL	86	break;
	87	}
	88
	89	return dev;
	90	}
	91
	92	static int ieee802154_sock_release(struct socket *sock)
	93	{
	94	struct sock *sk = sock->sk;
	95
	96	if (sk) {
	97	sock->sk = NULL;
	98	sk->sk_prot->close(sk, 0);
	99	}
	100	return 0;
	101	}
	102	static int ieee802154_sock_sendmsg(struct kiocb iocb, struct socket sock,
4710d806	103	struct msghdr *msg, size_t len)
9ec76716 SL	104	{
	105	struct sock *sk = sock->sk;
	106
	107	return sk->sk_prot->sendmsg(iocb, sk, msg, len);
	108	}
	109
	110	static int ieee802154_sock_bind(struct socket sock, struct sockaddr uaddr,
4710d806	111	int addr_len)
9ec76716 SL	112	{
	113	struct sock *sk = sock->sk;
	114
	115	if (sk->sk_prot->bind)
	116	return sk->sk_prot->bind(sk, uaddr, addr_len);
	117
	118	return sock_no_bind(sock, uaddr, addr_len);
	119	}
	120
	121	static int ieee802154_sock_connect(struct socket sock, struct sockaddr uaddr,
4710d806	122	int addr_len, int flags)
9ec76716 SL	123	{
	124	struct sock *sk = sock->sk;
	125
6503d961 CG	126	if (addr_len < sizeof(uaddr->sa_family))
	127	return -EINVAL;
	128
9ec76716 SL	129	if (uaddr->sa_family == AF_UNSPEC)
	130	return sk->sk_prot->disconnect(sk, flags);
	131
	132	return sk->sk_prot->connect(sk, uaddr, addr_len);
	133	}
	134
	135	static int ieee802154_dev_ioctl(struct sock sk, struct ifreq __user arg,
4710d806	136	unsigned int cmd)
9ec76716 SL	137	{
9ec76716 SL	138	struct ifreq ifr;
45a41d14	139	int ret = -ENOIOCTLCMD;
9ec76716 SL	140	struct net_device *dev;
	141
	142	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
	143	return -EFAULT;
	144
	145	ifr.ifr_name[IFNAMSIZ-1] = 0;
	146
	147	dev_load(sock_net(sk), ifr.ifr_name);
	148	dev = dev_get_by_name(sock_net(sk), ifr.ifr_name);
45a41d14	149
93c0c8b4 SS	150	if (!dev)
	151	return -ENODEV;
	152
929122cd	153	if (dev->type == ARPHRD_IEEE802154 && dev->netdev_ops->ndo_do_ioctl)
9ec76716 SL	154	ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, cmd);
	155
	156	if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
	157	ret = -EFAULT;
	158	dev_put(dev);
	159
	160	return ret;
	161	}
	162
	163	static int ieee802154_sock_ioctl(struct socket *sock, unsigned int cmd,
4710d806	164	unsigned long arg)
9ec76716 SL	165	{
	166	struct sock *sk = sock->sk;
	167
	168	switch (cmd) {
	169	case SIOCGSTAMP:
	170	return sock_get_timestamp(sk, (struct timeval __user *)arg);
	171	case SIOCGSTAMPNS:
	172	return sock_get_timestampns(sk, (struct timespec __user *)arg);
	173	case SIOCGIFADDR:
	174	case SIOCSIFADDR:
	175	return ieee802154_dev_ioctl(sk, (struct ifreq __user *)arg,
	176	cmd);
	177	default:
	178	if (!sk->sk_prot->ioctl)
	179	return -ENOIOCTLCMD;
	180	return sk->sk_prot->ioctl(sk, cmd, arg);
	181	}
	182	}
	183
	184	static const struct proto_ops ieee802154_raw_ops = {
	185	.family = PF_IEEE802154,
	186	.owner = THIS_MODULE,
	187	.release = ieee802154_sock_release,
	188	.bind = ieee802154_sock_bind,
	189	.connect = ieee802154_sock_connect,
	190	.socketpair = sock_no_socketpair,
	191	.accept = sock_no_accept,
	192	.getname = sock_no_getname,
	193	.poll = datagram_poll,
	194	.ioctl = ieee802154_sock_ioctl,
	195	.listen = sock_no_listen,
	196	.shutdown = sock_no_shutdown,
	197	.setsockopt = sock_common_setsockopt,
	198	.getsockopt = sock_common_getsockopt,
	199	.sendmsg = ieee802154_sock_sendmsg,
	200	.recvmsg = sock_common_recvmsg,
	201	.mmap = sock_no_mmap,
	202	.sendpage = sock_no_sendpage,
	203	#ifdef CONFIG_COMPAT
	204	.compat_setsockopt = compat_sock_common_setsockopt,
	205	.compat_getsockopt = compat_sock_common_getsockopt,
	206	#endif
	207	};
	208
	209	static const struct proto_ops ieee802154_dgram_ops = {
	210	.family = PF_IEEE802154,
	211	.owner = THIS_MODULE,
	212	.release = ieee802154_sock_release,
	213	.bind = ieee802154_sock_bind,
	214	.connect = ieee802154_sock_connect,
	215	.socketpair = sock_no_socketpair,
	216	.accept = sock_no_accept,
	217	.getname = sock_no_getname,
	218	.poll = datagram_poll,
	219	.ioctl = ieee802154_sock_ioctl,
	220	.listen = sock_no_listen,
	221	.shutdown = sock_no_shutdown,
	222	.setsockopt = sock_common_setsockopt,
	223	.getsockopt = sock_common_getsockopt,
	224	.sendmsg = ieee802154_sock_sendmsg,
	225	.recvmsg = sock_common_recvmsg,
	226	.mmap = sock_no_mmap,
	227	.sendpage = sock_no_sendpage,
	228	#ifdef CONFIG_COMPAT
229	.compat_setsockopt = compat_sock_common_setsockopt,
230	.compat_getsockopt = compat_sock_common_getsockopt,
231	#endif
232	};
233
234
4710d806	235	/* Create a socket. Initialise the socket, blank the addresses
9ec76716 SL	236	* set the state.
	237	*/
	238	static int ieee802154_create(struct net net, struct socket sock,
3f378b68	239	int protocol, int kern)
9ec76716 SL	240	{
	241	struct sock *sk;
	242	int rc;
	243	struct proto *proto;
	244	const struct proto_ops *ops;
	245
09ad9bc7	246	if (!net_eq(net, &init_net))
9ec76716 SL	247	return -EAFNOSUPPORT;
	248
	249	switch (sock->type) {
	250	case SOCK_RAW:
	251	proto = &ieee802154_raw_prot;
	252	ops = &ieee802154_raw_ops;
	253	break;
	254	case SOCK_DGRAM:
	255	proto = &ieee802154_dgram_prot;
	256	ops = &ieee802154_dgram_ops;
	257	break;
	258	default:
	259	rc = -ESOCKTNOSUPPORT;
	260	goto out;
	261	}
	262
	263	rc = -ENOMEM;
	264	sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
	265	if (!sk)
	266	goto out;
	267	rc = 0;
	268
	269	sock->ops = ops;
	270
	271	sock_init_data(sock, sk);
	272	/* FIXME: sk->sk_destruct */
	273	sk->sk_family = PF_IEEE802154;
	274
	275	/* Checksums on by default */
	276	sock_set_flag(sk, SOCK_ZAPPED);
	277
	278	if (sk->sk_prot->hash)
	279	sk->sk_prot->hash(sk);
	280
	281	if (sk->sk_prot->init) {
	282	rc = sk->sk_prot->init(sk);
	283	if (rc)
	284	sk_common_release(sk);
	285	}
	286	out:
	287	return rc;
	288	}
	289
ec1b4cf7	290	static const struct net_proto_family ieee802154_family_ops = {
9ec76716 SL	291	.family = PF_IEEE802154,
	292	.create = ieee802154_create,
	293	.owner = THIS_MODULE,
	294	};
	295
	296	static int ieee802154_rcv(struct sk_buff skb, struct net_device dev,
4710d806	297	struct packet_type pt, struct net_device orig_dev)
9ec76716	298	{
9ec76716	299	if (!netif_running(dev))
fa1da883	300	goto drop;
9ec76716	301	pr_debug("got frame, type %d, dev %p\n", dev->type, dev);
25502bda	302	#ifdef DEBUG
4710d806 VB	303	print_hex_dump_bytes("ieee802154_rcv ",
4710d806 VB	304	DUMP_PREFIX_NONE, skb->data, skb->len);
25502bda	305	#endif
9ec76716 SL	306
	307	if (!net_eq(dev_net(dev), &init_net))
	308	goto drop;
	309
	310	ieee802154_raw_deliver(dev, skb);
	311
	312	if (dev->type != ARPHRD_IEEE802154)
	313	goto drop;
	314
	315	if (skb->pkt_type != PACKET_OTHERHOST)
	316	return ieee802154_dgram_deliver(dev, skb);
	317
	318	drop:
	319	kfree_skb(skb);
	320	return NET_RX_DROP;
	321	}
	322
	323
	324	static struct packet_type ieee802154_packet_type = {
ec633eb5	325	.type = htons(ETH_P_IEEE802154),
9ec76716 SL	326	.func = ieee802154_rcv,
	327	};
	328
	329	static int __init af_ieee802154_init(void)
	330	{
	331	int rc = -EINVAL;
	332
	333	rc = proto_register(&ieee802154_raw_prot, 1);
	334	if (rc)
	335	goto out;
	336
	337	rc = proto_register(&ieee802154_dgram_prot, 1);
	338	if (rc)
	339	goto err_dgram;
	340
	341	/* Tell SOCKET that we are alive */
	342	rc = sock_register(&ieee802154_family_ops);
	343	if (rc)
	344	goto err_sock;
	345	dev_add_pack(&ieee802154_packet_type);
	346
	347	rc = 0;
	348	goto out;
	349
	350	err_sock:
	351	proto_unregister(&ieee802154_dgram_prot);
	352	err_dgram:
	353	proto_unregister(&ieee802154_raw_prot);
	354	out:
	355	return rc;
	356	}
	357	static void __exit af_ieee802154_remove(void)
	358	{
	359	dev_remove_pack(&ieee802154_packet_type);
	360	sock_unregister(PF_IEEE802154);
	361	proto_unregister(&ieee802154_dgram_prot);
	362	proto_unregister(&ieee802154_raw_prot);
	363	}
	364
	365	module_init(af_ieee802154_init);
	366	module_exit(af_ieee802154_remove);
	367
	368	MODULE_LICENSE("GPL");
	369	MODULE_ALIAS_NETPROTO(PF_IEEE802154);