[PATCH 04/10] net: add NL802154 interface for configuration of 802.15.4 devices

Dmitry Eremin-Solenikov
2009-06-01T14:57:21Z

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/net/ieee802154/nl802154.h | 165 +++++++++++++
net/ieee802154/Makefile | 3 +-
net/ieee802154/netlink.c | 485 +++++++++++++++++++++++++++++++++++++
3 files changed, 652 insertions(+), 1 deletions(-)
create mode 100644 include/net/ieee802154/nl802154.h
create mode 100644 net/ieee802154/netlink.c

diff --git a/include/net/ieee802154/nl802154.h b/include/net/ieee802154/nl802154.h
new file mode 100644
index 0000000..27f6ee9
--- /dev/null
+++ b/include/net/ieee802154/nl802154.h
@@ -0,0 +1,165 @@
+/*
+ * ieee802154_nl.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.
+ *
+ */
+
+#ifndef IEEE802154_NL_H
+#define IEEE802154_NL_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, /* FIXME: this is association */
+ 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)
+#define NLA_HW_ADDR NLA_U64
+#define NLA_GET_HW_ADDR(attr, addr) do { u64 _temp = nla_get_u64(attr); memcpy(addr, &_temp, 8); } while (0)
+#define NLA_PUT_HW_ADDR(msg, attr, addr) do { u64 _temp; memcpy(&_temp, addr, 8); NLA_PUT_U64(msg, attr, _temp); } while (0)
+
+#ifdef IEEE802154_NL_WANT_POLICY
+static 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
+};
+#endif
+
+/* 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_GTS_REQ, */
+/* IEEE802154_GTS_CONF, */
+ IEEE802154_RESET_REQ,
+ IEEE802154_RESET_CONF,
+/* IEEE802154_RX_ENABLE_REQ, */
+/* IEEE802154_RX_ENABLE_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_GTS_INDIC, */
+ IEEE802154_ORPHAN_INDIC,
+ IEEE802154_ORPHAN_RESP,
+ IEEE802154_COMM_STATUS_INDIC,
+ IEEE802154_SYNC_LOSS_INDIC,
+
+ __IEEE802154_CMD_MAX,
+};
+
+#define IEEE802154_CMD_MAX (__IEEE802154_CMD_MAX - 1)
+
+
+#ifdef __KERNEL__
+struct net_device;
+
+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); /* TODO */
+#endif
+
+#endif
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index cb88054..7c0b025 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
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..eafdc4d
--- /dev/null
+++ b/net/ieee802154/netlink.c
@@ -0,0 +1,485 @@
+/*
+ * 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 <net/netlink.h>
+#include <net/genetlink.h>
+#include <linux/netdevice.h>
+#include <net/ieee802154/af_ieee802154.h>
+#define IEEE802154_NL_WANT_POLICY
+#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)
+{
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); /* XXX: nlh is right at the start of msg */
+
+ if (!genlmsg_end(msg, hdr))
+ goto out;
+
+ return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id, GFP_ATOMIC);
+out:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+static int ieee802154_nl_put_failure(struct sk_buff *msg)
+{
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); /* XXX: nlh is right at the start of msg */
+ genlmsg_cancel(msg, hdr);
+ 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__);
+
+ msg = ieee802154_nl_create(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, dev->dev_addr);
+
+ /* FIXME: check that we really received hw address */
+ NLA_PUT_HW_ADDR(msg, IEEE802154_ATTR_SRC_HW_ADDR, addr->hwaddr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ return ieee802154_nl_put_failure(msg);
+}
+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(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, 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:
+ return ieee802154_nl_put_failure(msg);
+}
+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(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, dev->dev_addr);
+
+ if (addr->addr_type == IEEE802154_ADDR_LONG)
+ NLA_PUT_HW_ADDR(msg, IEEE802154_ATTR_SRC_HW_ADDR, 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:
+ return ieee802154_nl_put_failure(msg);
+}
+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(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, dev->dev_addr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ return ieee802154_nl_put_failure(msg);
+}
+EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm);
+
+int ieee802154_nl_beacon_indic(struct net_device *dev, u16 panid, u16 coord_addr) /* TODO */
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, 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:
+ return ieee802154_nl_put_failure(msg);
+}
+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(/* flags*/ 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_HW_ADDR(msg, IEEE802154_ATTR_HW_ADDR, 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:
+ return ieee802154_nl_put_failure(msg);
+}
+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_GET_HW_ADDR(info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], addr.hwaddr);
+ } 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_GET_HW_ADDR(info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], addr.hwaddr);
+ 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_GET_HW_ADDR(info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], addr.hwaddr);
+ } 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);
+
--
1.6.2.4