diff mbox

[3/5] net: add NL802154 interface for configuration of 802.15.4 devices

Message ID 1244168990-28355-4-git-send-email-dbaryshkov@gmail.com
State Superseded, archived
Delegated to: David Miller
Headers show

Commit Message

Dmitry Baryshkov June 5, 2009, 2:29 a.m. UTC
Add a netlink interface for configuration of IEEE 802.15.4 device. Also this
interface specifies events notification sent by devices towards higher layers.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Sergey Lapin <slapin@ossfans.org>
---
 include/linux/nl802154.h          |  119 +++++++++
 include/net/ieee802154/nl802154.h |   41 +++
 net/ieee802154/Makefile           |    3 +-
 net/ieee802154/netlink.c          |  523 +++++++++++++++++++++++++++++++++++++
 net/ieee802154/nl_policy.c        |   65 +++++
 5 files changed, 750 insertions(+), 1 deletions(-)
 create mode 100644 include/linux/nl802154.h
 create mode 100644 include/net/ieee802154/nl802154.h
 create mode 100644 net/ieee802154/netlink.c
 create mode 100644 net/ieee802154/nl_policy.c

Comments

Johannes Berg June 5, 2009, 6:52 a.m. UTC | #1
On Fri, 2009-06-05 at 06:29 +0400, Dmitry Eremin-Solenikov wrote:

> +/* This source file is shared between kernel and userspace sources, thus
> + * a bit of __KERNEL__ checks
> + */
> +#ifdef __KERNEL__

It's a C file. It can't be shared expect by copying, hence IMO these
things are pointless.

johannes
Dmitry Baryshkov June 5, 2009, 7:15 a.m. UTC | #2
On Fri, Jun 05, 2009 at 08:52:17AM +0200, Johannes Berg wrote:
> On Fri, 2009-06-05 at 06:29 +0400, Dmitry Eremin-Solenikov wrote:
> 
> > +/* This source file is shared between kernel and userspace sources, thus
> > + * a bit of __KERNEL__ checks
> > + */
> > +#ifdef __KERNEL__
> 
> It's a C file. It can't be shared expect by copying, hence IMO these
> things are pointless.

It is shared by copying. And I'd strongly prefer to have it shared
directly by 'cp', not by 'cp' and 'patch'. E.g. currently I can ensure
that policy definitions and commands are current just by comparing
files. I'd like to still have that ability. Thus, I'd ask to permit this
stuff in.
David Miller June 5, 2009, 7:54 a.m. UTC | #3
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Fri, 5 Jun 2009 11:15:29 +0400

> On Fri, Jun 05, 2009 at 08:52:17AM +0200, Johannes Berg wrote:
>> On Fri, 2009-06-05 at 06:29 +0400, Dmitry Eremin-Solenikov wrote:
>> 
>> > +/* This source file is shared between kernel and userspace sources, thus
>> > + * a bit of __KERNEL__ checks
>> > + */
>> > +#ifdef __KERNEL__
>> 
>> It's a C file. It can't be shared expect by copying, hence IMO these
>> things are pointless.
> 
> It is shared by copying. And I'd strongly prefer to have it shared
> directly by 'cp', not by 'cp' and 'patch'. E.g. currently I can ensure
> that policy definitions and commands are current just by comparing
> files. I'd like to still have that ability. Thus, I'd ask to permit this
> stuff in.

You can maintain your own code in your own directories in your
own source tree however you like.

But if you want you code in the upstream kernel, you have to clean it
of things like this.

I agree with Johannes, you have to get rid of this.
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diff mbox

Patch

diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h
new file mode 100644
index 0000000..2cda00c
--- /dev/null
+++ b/include/linux/nl802154.h
@@ -0,0 +1,119 @@ 
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 2007, 2008, 2009 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.
+ *
+ */
+
+#ifndef NL802154_H
+#define NL802154_H
+
+#define IEEE802154_NL_NAME "802.15.4 MAC"
+#define IEEE802154_MCAST_COORD_NAME "coordinator"
+#define IEEE802154_MCAST_BEACON_NAME "beacon"
+
+enum {
+	__IEEE802154_ATTR_INVALID,
+
+	IEEE802154_ATTR_DEV_NAME,
+	IEEE802154_ATTR_DEV_INDEX,
+
+	IEEE802154_ATTR_STATUS,
+
+	IEEE802154_ATTR_SHORT_ADDR,
+	IEEE802154_ATTR_HW_ADDR,
+	IEEE802154_ATTR_PAN_ID,
+
+	IEEE802154_ATTR_CHANNEL,
+
+	IEEE802154_ATTR_COORD_SHORT_ADDR,
+	IEEE802154_ATTR_COORD_HW_ADDR,
+	IEEE802154_ATTR_COORD_PAN_ID,
+
+	IEEE802154_ATTR_SRC_SHORT_ADDR,
+	IEEE802154_ATTR_SRC_HW_ADDR,
+	IEEE802154_ATTR_SRC_PAN_ID,
+
+	IEEE802154_ATTR_DEST_SHORT_ADDR,
+	IEEE802154_ATTR_DEST_HW_ADDR,
+	IEEE802154_ATTR_DEST_PAN_ID,
+
+	IEEE802154_ATTR_CAPABILITY,
+	IEEE802154_ATTR_REASON,
+	IEEE802154_ATTR_SCAN_TYPE,
+	IEEE802154_ATTR_CHANNELS,
+	IEEE802154_ATTR_DURATION,
+	IEEE802154_ATTR_ED_LIST,
+	IEEE802154_ATTR_BCN_ORD,
+	IEEE802154_ATTR_SF_ORD,
+	IEEE802154_ATTR_PAN_COORD,
+	IEEE802154_ATTR_BAT_EXT,
+	IEEE802154_ATTR_COORD_REALIGN,
+	IEEE802154_ATTR_SEC,
+
+	__IEEE802154_ATTR_MAX,
+};
+
+#define IEEE802154_ATTR_MAX (__IEEE802154_ATTR_MAX - 1)
+
+extern struct nla_policy ieee802154_policy[];
+
+/* commands */
+/* REQ should be responded with CONF
+ * and INDIC with RESP
+ */
+enum {
+	__IEEE802154_COMMAND_INVALID,
+
+	IEEE802154_ASSOCIATE_REQ,
+	IEEE802154_ASSOCIATE_CONF,
+	IEEE802154_DISASSOCIATE_REQ,
+	IEEE802154_DISASSOCIATE_CONF,
+	IEEE802154_GET_REQ,
+	IEEE802154_GET_CONF,
+	IEEE802154_RESET_REQ,
+	IEEE802154_RESET_CONF,
+	IEEE802154_SCAN_REQ,
+	IEEE802154_SCAN_CONF,
+	IEEE802154_SET_REQ,
+	IEEE802154_SET_CONF,
+	IEEE802154_START_REQ,
+	IEEE802154_START_CONF,
+	IEEE802154_SYNC_REQ,
+	IEEE802154_POLL_REQ,
+	IEEE802154_POLL_CONF,
+
+	IEEE802154_ASSOCIATE_INDIC,
+	IEEE802154_ASSOCIATE_RESP,
+	IEEE802154_DISASSOCIATE_INDIC,
+	IEEE802154_BEACON_NOTIFY_INDIC,
+	IEEE802154_ORPHAN_INDIC,
+	IEEE802154_ORPHAN_RESP,
+	IEEE802154_COMM_STATUS_INDIC,
+	IEEE802154_SYNC_LOSS_INDIC,
+
+	IEEE802154_GTS_REQ, /* Not supported yet */
+	IEEE802154_GTS_INDIC, /* Not supported yet */
+	IEEE802154_GTS_CONF, /* Not supported yet */
+	IEEE802154_RX_ENABLE_REQ, /* Not supported yet */
+	IEEE802154_RX_ENABLE_CONF, /* Not supported yet */
+
+	__IEEE802154_CMD_MAX,
+};
+
+#define IEEE802154_CMD_MAX (__IEEE802154_CMD_MAX - 1)
+
+#endif
diff --git a/include/net/ieee802154/nl802154.h b/include/net/ieee802154/nl802154.h
new file mode 100644
index 0000000..78efcdf
--- /dev/null
+++ b/include/net/ieee802154/nl802154.h
@@ -0,0 +1,41 @@ 
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 2007, 2008, 2009 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.
+ *
+ */
+
+#ifndef IEEE802154_NL_H
+#define IEEE802154_NL_H
+
+struct net_device;
+struct ieee802154_addr;
+
+int ieee802154_nl_assoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 cap);
+int ieee802154_nl_assoc_confirm(struct net_device *dev,
+		u16 short_addr, u8 status);
+int ieee802154_nl_disassoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 reason);
+int ieee802154_nl_disassoc_confirm(struct net_device *dev,
+		u8 status);
+int ieee802154_nl_scan_confirm(struct net_device *dev,
+		u8 status, u8 scan_type, u32 unscanned,
+		u8 *edl/*, struct list_head *pan_desc_list */);
+int ieee802154_nl_beacon_indic(struct net_device *dev, u16 panid,
+		u16 coord_addr);
+
+#endif
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index cb88054..0b11995 100644
--- a/net/ieee802154/Makefile
+++ b/net/ieee802154/Makefile
@@ -1,4 +1,5 @@ 
-obj-$(CONFIG_IEEE802154) +=	af_802154.o
+obj-$(CONFIG_IEEE802154) +=	nl802154.o af_802154.o
+nl802154-objs		:= netlink.o nl_policy.o
 af_802154-objs		:= af_ieee802154.o raw.o dgram.o
 
 EXTRA_CFLAGS += -Wall -DDEBUG
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
new file mode 100644
index 0000000..5c69ae9
--- /dev/null
+++ b/net/ieee802154/netlink.c
@@ -0,0 +1,523 @@ 
+/*
+ * 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.
+ *
+ * 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 <sergey.lapin@siemens.com>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <net/netlink.h>
+#include <net/genetlink.h>
+#include <linux/nl802154.h>
+#include <net/ieee802154/af_ieee802154.h>
+#include <net/ieee802154/nl802154.h>
+#include <net/ieee802154/netdevice.h>
+
+static unsigned int ieee802154_seq_num;
+
+static struct genl_family ieee802154_coordinator_family = {
+	.id		= GENL_ID_GENERATE,
+	.hdrsize	= 0,
+	.name		= IEEE802154_NL_NAME,
+	.version	= 1,
+	.maxattr	= IEEE802154_ATTR_MAX,
+};
+
+static struct genl_multicast_group ieee802154_coord_mcgrp = {
+	.name		= IEEE802154_MCAST_COORD_NAME,
+};
+
+static struct genl_multicast_group ieee802154_beacon_mcgrp = {
+	.name		= IEEE802154_MCAST_BEACON_NAME,
+};
+
+/* Requests to userspace */
+static struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+{
+	void *hdr;
+	struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+
+	if (!msg)
+		return NULL;
+
+	hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
+			&ieee802154_coordinator_family, flags, req);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return NULL;
+	}
+
+	return msg;
+}
+
+static int ieee802154_nl_finish(struct sk_buff *msg)
+{
+	/* XXX: nlh is right at the start of msg */
+	void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
+
+	if (!genlmsg_end(msg, hdr))
+		goto out;
+
+	return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id,
+			GFP_ATOMIC);
+out:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+
+int ieee802154_nl_assoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 cap)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	if (addr->addr_type != IEEE802154_ADDR_LONG) {
+		pr_err("%s: received non-long source address!\n", __func__);
+		return -EINVAL;
+	}
+
+	msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+			addr->hwaddr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_indic);
+
+int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
+		u8 status)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr);
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_assoc_confirm);
+
+int ieee802154_nl_disassoc_indic(struct net_device *dev,
+		struct ieee802154_addr *addr, u8 reason)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	if (addr->addr_type == IEEE802154_ADDR_LONG)
+		NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN,
+				addr->hwaddr);
+	else
+		NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR,
+				addr->short_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_indic);
+
+int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
+
+int ieee802154_nl_beacon_indic(struct net_device *dev,
+		u16 panid, u16 coord_addr)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+	NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr);
+	NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
+
+int ieee802154_nl_scan_confirm(struct net_device *dev,
+		u8 status, u8 scan_type, u32 unscanned,
+		u8 *edl/* , struct list_head *pan_desc_list */)
+{
+	struct sk_buff *msg;
+
+	pr_debug("%s\n", __func__);
+
+	msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF);
+	if (!msg)
+		return -ENOBUFS;
+
+	NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+	NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+			dev->dev_addr);
+
+	NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+	NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
+	NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
+
+	if (edl)
+		NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
+
+	return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+	nlmsg_free(msg);
+	return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
+
+/* Requests from userspace */
+static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
+{
+	struct net_device *dev;
+
+	if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
+		char name[IFNAMSIZ + 1];
+		nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
+				sizeof(name));
+		dev = dev_get_by_name(&init_net, name);
+	} else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
+		dev = dev_get_by_index(&init_net,
+				nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
+	else
+		return NULL;
+
+	if (dev->type != ARPHRD_IEEE802154) {
+		dev_put(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+static int ieee802154_associate_req(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+	    (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
+		!info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
+	    !info->attrs[IEEE802154_ATTR_CAPABILITY])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
+		addr.addr_type = IEEE802154_ADDR_LONG;
+		nla_memcpy(addr.hwaddr,
+				info->attrs[IEEE802154_ATTR_COORD_HW_ADDR],
+				IEEE802154_ADDR_LEN);
+	} else {
+		addr.addr_type = IEEE802154_ADDR_SHORT;
+		addr.short_addr = nla_get_u16(
+				info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+	}
+	addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+	ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
+			nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
+			nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_associate_resp(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if (!info->attrs[IEEE802154_ATTR_STATUS] ||
+	    !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
+	    !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	addr.addr_type = IEEE802154_ADDR_LONG;
+	nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+			IEEE802154_ADDR_LEN);
+	addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+
+	ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
+		nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
+		nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_disassociate_req(struct sk_buff *skb,
+		struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+	int ret = -EINVAL;
+
+	if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
+		!info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
+	    !info->attrs[IEEE802154_ATTR_REASON])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
+		addr.addr_type = IEEE802154_ADDR_LONG;
+		nla_memcpy(addr.hwaddr,
+				info->attrs[IEEE802154_ATTR_DEST_HW_ADDR],
+				IEEE802154_ADDR_LEN);
+	} else {
+		addr.addr_type = IEEE802154_ADDR_SHORT;
+		addr.short_addr = nla_get_u16(
+				info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
+	}
+	addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+
+	ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
+			nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
+
+	dev_put(dev);
+	return ret;
+}
+
+/*
+ * PANid, channel, beacon_order = 15, superframe_order = 15,
+ * PAN_coordinator, battery_life_extension = 0,
+ * coord_realignment = 0, security_enable = 0
+*/
+static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
+{
+	struct net_device *dev;
+	struct ieee802154_addr addr;
+
+	u8 channel, bcn_ord, sf_ord;
+	int pan_coord, blx, coord_realign;
+	int ret;
+
+	if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
+	    !info->attrs[IEEE802154_ATTR_CHANNEL] ||
+	    !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
+	    !info->attrs[IEEE802154_ATTR_SF_ORD] ||
+	    !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
+	    !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
+	    !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
+	 )
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	addr.addr_type = IEEE802154_ADDR_SHORT;
+	addr.short_addr = nla_get_u16(
+			info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
+	addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+
+	channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
+	bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
+	sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
+	pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
+	blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
+	coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
+
+	ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel,
+		bcn_ord, sf_ord, pan_coord, blx, coord_realign);
+
+	dev_put(dev);
+	return ret;
+}
+
+static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+{
+	struct net_device *dev;
+	int ret;
+	u8 type;
+	u32 channels;
+	u8 duration;
+
+	if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
+	    !info->attrs[IEEE802154_ATTR_CHANNELS] ||
+	    !info->attrs[IEEE802154_ATTR_DURATION])
+		return -EINVAL;
+
+	dev = ieee802154_nl_get_dev(info);
+	if (!dev)
+		return -ENODEV;
+
+	type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
+	channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
+	duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
+
+	ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
+			duration);
+
+	dev_put(dev);
+	return ret;
+}
+
+#define IEEE802154_OP(_cmd, _func)			\
+	{						\
+		.cmd	= _cmd,				\
+		.policy	= ieee802154_policy,		\
+		.doit	= _func,			\
+		.dumpit	= NULL,				\
+		.flags	= GENL_ADMIN_PERM,		\
+	}
+
+static struct genl_ops ieee802154_coordinator_ops[] = {
+	IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
+	IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
+	IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
+	IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
+	IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+};
+
+static int __init ieee802154_nl_init(void)
+{
+	int rc;
+	int i;
+
+	rc = genl_register_family(&ieee802154_coordinator_family);
+	if (rc)
+		goto fail;
+
+	rc = genl_register_mc_group(&ieee802154_coordinator_family,
+			&ieee802154_coord_mcgrp);
+	if (rc)
+		goto fail;
+
+	rc = genl_register_mc_group(&ieee802154_coordinator_family,
+			&ieee802154_beacon_mcgrp);
+	if (rc)
+		goto fail;
+
+
+	for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
+		rc = genl_register_ops(&ieee802154_coordinator_family,
+				&ieee802154_coordinator_ops[i]);
+		if (rc)
+			goto fail;
+	}
+
+	return 0;
+
+fail:
+	genl_unregister_family(&ieee802154_coordinator_family);
+	return rc;
+}
+module_init(ieee802154_nl_init);
+
+static void __exit ieee802154_nl_exit(void)
+{
+	genl_unregister_family(&ieee802154_coordinator_family);
+}
+module_exit(ieee802154_nl_exit);
+
diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c
new file mode 100644
index 0000000..4e0614f
--- /dev/null
+++ b/net/ieee802154/nl_policy.c
@@ -0,0 +1,65 @@ 
+/*
+ * nl802154.h
+ *
+ * Copyright (C) 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.
+ *
+ */
+
+/* This source file is shared between kernel and userspace sources, thus
+ * a bit of __KERNEL__ checks
+ */
+#ifdef __KERNEL__
+#include <linux/kernel.h>
+#include <net/netlink.h>
+#include <linux/nl802154.h>
+#else
+#include <netlink/netlink.h>
+#include <netlink/attr.h>
+#include <nl802154.h>
+#endif
+
+#define NLA_HW_ADDR NLA_U64
+
+struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = {
+	[IEEE802154_ATTR_DEV_NAME] = { .type = NLA_STRING, },
+	[IEEE802154_ATTR_DEV_INDEX] = { .type = NLA_U32, },
+
+	[IEEE802154_ATTR_STATUS] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_CHANNEL] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_COORD_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_COORD_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_COORD_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_SRC_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_SRC_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_SRC_PAN_ID] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_DEST_SHORT_ADDR] = { .type = NLA_U16, },
+	[IEEE802154_ATTR_DEST_HW_ADDR] = { .type = NLA_HW_ADDR, },
+	[IEEE802154_ATTR_DEST_PAN_ID] = { .type = NLA_U16, },
+
+	[IEEE802154_ATTR_CAPABILITY] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_REASON] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_SCAN_TYPE] = { .type = NLA_U8, },
+	[IEEE802154_ATTR_CHANNELS] = { .type = NLA_U32, },
+	[IEEE802154_ATTR_DURATION] = { .type = NLA_U8, },
+#ifdef __KERNEL__
+	[IEEE802154_ATTR_ED_LIST] = { .len = 27 },
+#else
+	[IEEE802154_ATTR_ED_LIST] = { .minlen = 27, .maxlen = 27 },
+#endif
+};