[deliverable/linux.git] / net / ieee802154 / nl-phy.c

/*
 * Netlink inteface for IEEE 802.15.4 stack
 *
 * 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>
 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Maxim Osipov <maxim.osipov@siemens.com>
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/if_arp.h>
#include <net/netlink.h>
#include <net/genetlink.h>
#include <net/cfg802154.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>
#include <net/rtnetlink.h> /* for rtnl_{un,}lock */
#include <linux/nl802154.h>

#include "ieee802154.h"
#include "rdev-ops.h"
#include "core.h"

static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid,
				  u32 seq, int flags, struct wpan_phy *phy)
{
	void *hdr;
	int i, pages = 0;
	uint32_t *buf = kzalloc(32 * sizeof(uint32_t), GFP_KERNEL);

	pr_debug("%s\n", __func__);

	if (!buf)
		return -EMSGSIZE;

	hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
			  IEEE802154_LIST_PHY);
	if (!hdr)
		goto out;

	mutex_lock(&phy->pib_lock);
	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
	    nla_put_u8(msg, IEEE802154_ATTR_PAGE, phy->current_page) ||
	    nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel))
		goto nla_put_failure;
	for (i = 0; i < 32; i++) {
		if (phy->channels_supported[i])
			buf[pages++] = phy->channels_supported[i] | (i << 27);
	}
	if (pages &&
	    nla_put(msg, IEEE802154_ATTR_CHANNEL_PAGE_LIST,
		    pages * sizeof(uint32_t), buf))
		goto nla_put_failure;
	mutex_unlock(&phy->pib_lock);
	kfree(buf);
	return genlmsg_end(msg, hdr);

nla_put_failure:
	mutex_unlock(&phy->pib_lock);
	genlmsg_cancel(msg, hdr);
out:
	kfree(buf);
	return -EMSGSIZE;
}

int ieee802154_list_phy(struct sk_buff *skb, struct genl_info *info)
{
	/* Request for interface name, index, type, IEEE address,
	 * PAN Id, short address
	 */
	struct sk_buff *msg;
	struct wpan_phy *phy;
	const char *name;
	int rc = -ENOBUFS;

	pr_debug("%s\n", __func__);

	if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
		return -EINVAL;

	name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
	if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
		return -EINVAL; /* phy name should be null-terminated */


	phy = wpan_phy_find(name);
	if (!phy)
		return -ENODEV;

	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
	if (!msg)
		goto out_dev;

	rc = ieee802154_nl_fill_phy(msg, info->snd_portid, info->snd_seq,
				    0, phy);
	if (rc < 0)
		goto out_free;

	wpan_phy_put(phy);

	return genlmsg_reply(msg, info);
out_free:
	nlmsg_free(msg);
out_dev:
	wpan_phy_put(phy);
	return rc;
}

struct dump_phy_data {
	struct sk_buff *skb;
	struct netlink_callback *cb;
	int idx, s_idx;
};

static int ieee802154_dump_phy_iter(struct wpan_phy *phy, void *_data)
{
	int rc;
	struct dump_phy_data *data = _data;

	pr_debug("%s\n", __func__);

	if (data->idx++ < data->s_idx)
		return 0;

	rc = ieee802154_nl_fill_phy(data->skb,
				    NETLINK_CB(data->cb->skb).portid,
				    data->cb->nlh->nlmsg_seq,
				    NLM_F_MULTI,
				    phy);

	if (rc < 0) {
		data->idx--;
		return rc;
	}

	return 0;
}

int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb)
{
	struct dump_phy_data data = {
		.cb = cb,
		.skb = skb,
		.s_idx = cb->args[0],
		.idx = 0,
	};

	pr_debug("%s\n", __func__);

	wpan_phy_for_each(ieee802154_dump_phy_iter, &data);

	cb->args[0] = data.idx;

	return skb->len;
}

int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
{
	struct sk_buff *msg;
	struct wpan_phy *phy;
	const char *name;
	const char *devname;
	int rc = -ENOBUFS;
	struct net_device *dev;
	int type = __IEEE802154_DEV_INVALID;

	pr_debug("%s\n", __func__);

	if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
		return -EINVAL;

	name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
	if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
		return -EINVAL; /* phy name should be null-terminated */

	if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
		devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
		if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1]
				!= '\0')
			return -EINVAL; /* phy name should be null-terminated */
	} else  {
		devname = "wpan%d";
	}

	if (strlen(devname) >= IFNAMSIZ)
		return -ENAMETOOLONG;

	phy = wpan_phy_find(name);
	if (!phy)
		return -ENODEV;

	msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE);
	if (!msg)
		goto out_dev;

	if (info->attrs[IEEE802154_ATTR_HW_ADDR] &&
	    nla_len(info->attrs[IEEE802154_ATTR_HW_ADDR]) !=
			IEEE802154_ADDR_LEN) {
		rc = -EINVAL;
		goto nla_put_failure;
	}

	if (info->attrs[IEEE802154_ATTR_DEV_TYPE]) {
		type = nla_get_u8(info->attrs[IEEE802154_ATTR_DEV_TYPE]);
		if (type >= __IEEE802154_DEV_MAX) {
			rc = -EINVAL;
			goto nla_put_failure;
		}
	}

	dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname,
					       type);
	if (IS_ERR(dev)) {
		rc = PTR_ERR(dev);
		goto nla_put_failure;
	}
	dev_hold(dev);

	if (info->attrs[IEEE802154_ATTR_HW_ADDR]) {
		struct sockaddr addr;

		addr.sa_family = ARPHRD_IEEE802154;
		nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR],
			   IEEE802154_ADDR_LEN);

		/* strangely enough, some callbacks (inetdev_event) from
		 * dev_set_mac_address require RTNL_LOCK
		 */
		rtnl_lock();
		rc = dev_set_mac_address(dev, &addr);
		rtnl_unlock();
		if (rc)
			goto dev_unregister;
	}

	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
	    nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name))
		goto nla_put_failure;
	dev_put(dev);

	wpan_phy_put(phy);

	return ieee802154_nl_reply(msg, info);

dev_unregister:
	rtnl_lock(); /* del_iface must be called with RTNL lock */
	rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);
	dev_put(dev);
	rtnl_unlock();
nla_put_failure:
	nlmsg_free(msg);
out_dev:
	wpan_phy_put(phy);
	return rc;
}

int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info)
{
	struct sk_buff *msg;
	struct wpan_phy *phy;
	const char *name;
	int rc;
	struct net_device *dev;

	pr_debug("%s\n", __func__);

	if (!info->attrs[IEEE802154_ATTR_DEV_NAME])
		return -EINVAL;

	name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
	if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0')
		return -EINVAL; /* name should be null-terminated */

	dev = dev_get_by_name(genl_info_net(info), name);
	if (!dev)
		return -ENODEV;

	phy = dev->ieee802154_ptr->wpan_phy;
	BUG_ON(!phy);
	get_device(&phy->dev);

	rc = -EINVAL;
	/* phy name is optional, but should be checked if it's given */
	if (info->attrs[IEEE802154_ATTR_PHY_NAME]) {
		struct wpan_phy *phy2;

		const char *pname =
			nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
		if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1]
				!= '\0')
			/* name should be null-terminated */
			goto out_dev;

		phy2 = wpan_phy_find(pname);
		if (!phy2)
			goto out_dev;

		if (phy != phy2) {
			wpan_phy_put(phy2);
			goto out_dev;
		}
	}

	rc = -ENOBUFS;

	msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE);
	if (!msg)
		goto out_dev;

	rtnl_lock();
	rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);

	/* We don't have device anymore */
	dev_put(dev);
	dev = NULL;

	rtnl_unlock();

	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
	    nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, name))
		goto nla_put_failure;
	wpan_phy_put(phy);

	return ieee802154_nl_reply(msg, info);

nla_put_failure:
	nlmsg_free(msg);
out_dev:
	wpan_phy_put(phy);
	if (dev)
		dev_put(dev);

	return rc;
}
Commit	Line	Data
1eaa9d03 DES	1	/*
	2	* Netlink inteface for IEEE 802.15.4 stack
	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	*
1eaa9d03 DES	15	* Written by:
	16	* Sergey Lapin <slapin@ossfans.org>
	17	* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
	18	* Maxim Osipov <maxim.osipov@siemens.com>
	19	*/
	20
	21	#include <linux/kernel.h>
5a0e3ad6	22	#include <linux/slab.h>
060e4179	23	#include <linux/if_arp.h>
1eaa9d03 DES	24	#include <net/netlink.h>
1eaa9d03 DES	25	#include <net/genetlink.h>
5ad60d36	26	#include <net/cfg802154.h>
bb1cafb8 DES	27	#include <net/af_ieee802154.h>
	28	#include <net/ieee802154_netdev.h>
	29	#include <net/rtnetlink.h> /* for rtnl_{un,}lock */
1eaa9d03 DES	30	#include <linux/nl802154.h>
	31
	32	#include "ieee802154.h"
4a9a816a AA	33	#include "rdev-ops.h"
4a9a816a AA	34	#include "core.h"
1eaa9d03	35
15e47304	36	static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid,
4710d806	37	u32 seq, int flags, struct wpan_phy *phy)
1eaa9d03 DES	38	{
	39	void *hdr;
	40	int i, pages = 0;
	41	uint32_t buf = kzalloc(32 sizeof(uint32_t), GFP_KERNEL);
	42
	43	pr_debug("%s\n", __func__);
	44
	45	if (!buf)
b9cabe52	46	return -EMSGSIZE;
1eaa9d03 DES	47
1eaa9d03 DES	48	hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
4710d806	49	IEEE802154_LIST_PHY);
1eaa9d03 DES	50	if (!hdr)
	51	goto out;
	52
	53	mutex_lock(&phy->pib_lock);
be51da0f DM	54	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) \|\|
	55	nla_put_u8(msg, IEEE802154_ATTR_PAGE, phy->current_page) \|\|
	56	nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel))
	57	goto nla_put_failure;
1eaa9d03 DES	58	for (i = 0; i < 32; i++) {
	59	if (phy->channels_supported[i])
	60	buf[pages++] = phy->channels_supported[i] \| (i << 27);
	61	}
be51da0f DM	62	if (pages &&
	63	nla_put(msg, IEEE802154_ATTR_CHANNEL_PAGE_LIST,
	64	pages * sizeof(uint32_t), buf))
	65	goto nla_put_failure;
1eaa9d03	66	mutex_unlock(&phy->pib_lock);
b9cabe52	67	kfree(buf);
1eaa9d03 DES	68	return genlmsg_end(msg, hdr);
	69
	70	nla_put_failure:
	71	mutex_unlock(&phy->pib_lock);
	72	genlmsg_cancel(msg, hdr);
	73	out:
	74	kfree(buf);
	75	return -EMSGSIZE;
	76	}
	77
1c582d91	78	int ieee802154_list_phy(struct sk_buff skb, struct genl_info info)
1eaa9d03 DES	79	{
1eaa9d03 DES	80	/* Request for interface name, index, type, IEEE address,
4710d806 VB	81	* PAN Id, short address
4710d806 VB	82	*/
1eaa9d03 DES	83	struct sk_buff *msg;
	84	struct wpan_phy *phy;
	85	const char *name;
	86	int rc = -ENOBUFS;
	87
	88	pr_debug("%s\n", __func__);
	89
	90	if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
	91	return -EINVAL;
	92
	93	name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
	94	if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
	95	return -EINVAL; /* phy name should be null-terminated */
	96
	97
	98	phy = wpan_phy_find(name);
	99	if (!phy)
	100	return -ENODEV;
	101
58050fce	102	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1eaa9d03 DES	103	if (!msg)
	104	goto out_dev;
	105
15e47304	106	rc = ieee802154_nl_fill_phy(msg, info->snd_portid, info->snd_seq,
4710d806	107	0, phy);
1eaa9d03 DES	108	if (rc < 0)
	109	goto out_free;
	110
	111	wpan_phy_put(phy);
	112
	113	return genlmsg_reply(msg, info);
	114	out_free:
	115	nlmsg_free(msg);
	116	out_dev:
	117	wpan_phy_put(phy);
	118	return rc;
1eaa9d03 DES	119	}
	120
	121	struct dump_phy_data {
	122	struct sk_buff *skb;
	123	struct netlink_callback *cb;
	124	int idx, s_idx;
	125	};
	126
	127	static int ieee802154_dump_phy_iter(struct wpan_phy phy, void _data)
	128	{
	129	int rc;
	130	struct dump_phy_data *data = _data;
	131
	132	pr_debug("%s\n", __func__);
	133
	134	if (data->idx++ < data->s_idx)
	135	return 0;
	136
	137	rc = ieee802154_nl_fill_phy(data->skb,
4710d806 VB	138	NETLINK_CB(data->cb->skb).portid,
	139	data->cb->nlh->nlmsg_seq,
	140	NLM_F_MULTI,
	141	phy);
1eaa9d03 DES	142
	143	if (rc < 0) {
	144	data->idx--;
	145	return rc;
	146	}
	147
	148	return 0;
	149	}
	150
1c582d91	151	int ieee802154_dump_phy(struct sk_buff skb, struct netlink_callback cb)
1eaa9d03 DES	152	{
	153	struct dump_phy_data data = {
	154	.cb = cb,
	155	.skb = skb,
	156	.s_idx = cb->args[0],
	157	.idx = 0,
	158	};
	159
	160	pr_debug("%s\n", __func__);
	161
	162	wpan_phy_for_each(ieee802154_dump_phy_iter, &data);
	163
	164	cb->args[0] = data.idx;
	165
	166	return skb->len;
	167	}
	168
1c582d91	169	int ieee802154_add_iface(struct sk_buff skb, struct genl_info info)
bb1cafb8 DES	170	{
	171	struct sk_buff *msg;
	172	struct wpan_phy *phy;
	173	const char *name;
	174	const char *devname;
	175	int rc = -ENOBUFS;
	176	struct net_device *dev;
90c049b2	177	int type = __IEEE802154_DEV_INVALID;
bb1cafb8 DES	178
	179	pr_debug("%s\n", __func__);
	180
	181	if (!info->attrs[IEEE802154_ATTR_PHY_NAME])
	182	return -EINVAL;
	183
	184	name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
	185	if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
	186	return -EINVAL; /* phy name should be null-terminated */
	187
	188	if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
	189	devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
	190	if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1]
	191	!= '\0')
	192	return -EINVAL; /* phy name should be null-terminated */
	193	} else {
	194	devname = "wpan%d";
	195	}
	196
	197	if (strlen(devname) >= IFNAMSIZ)
	198	return -ENAMETOOLONG;
	199
	200	phy = wpan_phy_find(name);
	201	if (!phy)
	202	return -ENODEV;
	203
	204	msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE);
	205	if (!msg)
	206	goto out_dev;
	207
060e4179 DES	208	if (info->attrs[IEEE802154_ATTR_HW_ADDR] &&
	209	nla_len(info->attrs[IEEE802154_ATTR_HW_ADDR]) !=
	210	IEEE802154_ADDR_LEN) {
	211	rc = -EINVAL;
	212	goto nla_put_failure;
	213	}
	214
90c049b2	215	if (info->attrs[IEEE802154_ATTR_DEV_TYPE]) {
90c049b2	216	type = nla_get_u8(info->attrs[IEEE802154_ATTR_DEV_TYPE]);
267d29a6 CE	217	if (type >= __IEEE802154_DEV_MAX) {
	218	rc = -EINVAL;
	219	goto nla_put_failure;
	220	}
90c049b2	221	}
90c049b2	222
4a9a816a AA	223	dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname,
4a9a816a AA	224	type);
bb1cafb8 DES	225	if (IS_ERR(dev)) {
	226	rc = PTR_ERR(dev);
	227	goto nla_put_failure;
	228	}
12cb56c2	229	dev_hold(dev);
bb1cafb8	230
060e4179 DES	231	if (info->attrs[IEEE802154_ATTR_HW_ADDR]) {
	232	struct sockaddr addr;
	233
	234	addr.sa_family = ARPHRD_IEEE802154;
	235	nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR],
4710d806	236	IEEE802154_ADDR_LEN);
060e4179	237
4710d806	238	/* strangely enough, some callbacks (inetdev_event) from
060e4179 DES	239	* dev_set_mac_address require RTNL_LOCK
	240	*/
	241	rtnl_lock();
	242	rc = dev_set_mac_address(dev, &addr);
	243	rtnl_unlock();
	244	if (rc)
	245	goto dev_unregister;
	246	}
	247
be51da0f DM	248	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) \|\|
	249	nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name))
	250	goto nla_put_failure;
bb1cafb8 DES	251	dev_put(dev);
	252
	253	wpan_phy_put(phy);
	254
	255	return ieee802154_nl_reply(msg, info);
	256
060e4179 DES	257	dev_unregister:
060e4179 DES	258	rtnl_lock(); /* del_iface must be called with RTNL lock */
4a9a816a	259	rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);
060e4179 DES	260	dev_put(dev);
060e4179 DES	261	rtnl_unlock();
bb1cafb8 DES	262	nla_put_failure:
	263	nlmsg_free(msg);
	264	out_dev:
	265	wpan_phy_put(phy);
	266	return rc;
	267	}
	268
1c582d91	269	int ieee802154_del_iface(struct sk_buff skb, struct genl_info info)
bb1cafb8 DES	270	{
	271	struct sk_buff *msg;
	272	struct wpan_phy *phy;
	273	const char *name;
	274	int rc;
	275	struct net_device *dev;
	276
	277	pr_debug("%s\n", __func__);
	278
	279	if (!info->attrs[IEEE802154_ATTR_DEV_NAME])
	280	return -EINVAL;
	281
	282	name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]);
	283	if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0')
	284	return -EINVAL; /* name should be null-terminated */
	285
	286	dev = dev_get_by_name(genl_info_net(info), name);
	287	if (!dev)
	288	return -ENODEV;
	289
bd28a11f	290	phy = dev->ieee802154_ptr->wpan_phy;
bb1cafb8	291	BUG_ON(!phy);
bd28a11f	292	get_device(&phy->dev);
bb1cafb8 DES	293
	294	rc = -EINVAL;
	295	/* phy name is optional, but should be checked if it's given */
	296	if (info->attrs[IEEE802154_ATTR_PHY_NAME]) {
	297	struct wpan_phy *phy2;
	298
	299	const char *pname =
	300	nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
	301	if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1]
	302	!= '\0')
	303	/* name should be null-terminated */
	304	goto out_dev;
	305
	306	phy2 = wpan_phy_find(pname);
	307	if (!phy2)
	308	goto out_dev;
	309
	310	if (phy != phy2) {
	311	wpan_phy_put(phy2);
	312	goto out_dev;
	313	}
	314	}
	315
	316	rc = -ENOBUFS;
	317
	318	msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE);
	319	if (!msg)
	320	goto out_dev;
	321
bb1cafb8	322	rtnl_lock();
4a9a816a	323	rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev);
bb1cafb8 DES	324
	325	/* We don't have device anymore */
	326	dev_put(dev);
	327	dev = NULL;
	328
	329	rtnl_unlock();
	330
be51da0f DM	331	if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) \|\|
	332	nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, name))
	333	goto nla_put_failure;
bb1cafb8 DES	334	wpan_phy_put(phy);
	335
	336	return ieee802154_nl_reply(msg, info);
	337
	338	nla_put_failure:
	339	nlmsg_free(msg);
	340	out_dev:
	341	wpan_phy_put(phy);
	342	if (dev)
	343	dev_put(dev);
	344
	345	return rc;
	346	}