mac802154: basic mib support

Basic support for IEEE 802.15.4 management information base.
Current implementation contains a command to set HW address only.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/mac802154/Makefile b/net/mac802154/Makefile
index 4d9dd0f3b969ec54236999b312a9a803a11a9f69..6b348b07a7656859de1487b29fbf24c952621cbb 100644 (file)
--- a/net/mac802154/Makefile
+++ b/net/mac802154/Makefile
@@ -1,2 +1,2 @@
 obj-$(CONFIG_MAC802154)        += mac802154.o
-mac802154-objs         := ieee802154_dev.o rx.o tx.o mac_cmd.o
+mac802154-objs         := ieee802154_dev.o rx.o tx.o mac_cmd.o mib.o

diff --git a/net/mac802154/mac802154.h b/net/mac802154/mac802154.h
index 7ec2821c574b687dd9a87559d51c215a3e68870f..7d9a0d4a99fd428930c4412c31fcf4d47a0623bd 100644 (file)
--- a/net/mac802154/mac802154.h
+++ b/net/mac802154/mac802154.h
@@ -95,4 +95,7 @@ extern struct ieee802154_reduced_mlme_ops mac802154_mlme_reduced;
 netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb,
                         u8 page, u8 chan);
 
+/* MIB callbacks */
+void mac802154_dev_set_ieee_addr(struct net_device *dev);
+
 #endif /* MAC802154_H */

diff --git a/net/mac802154/mib.c b/net/mac802154/mib.c
new file mode 100644 (file)
index 0000000..ab59821
--- /dev/null
+++ b/net/mac802154/mib.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2007-2012 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:
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Sergey Lapin <slapin@ossfans.org>
+ * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
+ * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
+ */
+
+#include <linux/if_arp.h>
+
+#include <net/mac802154.h>
+#include <net/wpan-phy.h>
+
+#include "mac802154.h"
+
+struct hw_addr_filt_notify_work {
+       struct work_struct work;
+       struct net_device *dev;
+       unsigned long changed;
+};
+
+struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev)
+{
+       struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+       BUG_ON(dev->type != ARPHRD_IEEE802154);
+
+       return priv->hw;
+}
+
+static void hw_addr_notify(struct work_struct *work)
+{
+       struct hw_addr_filt_notify_work *nw = container_of(work,
+                       struct hw_addr_filt_notify_work, work);
+       struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
+       int res;
+
+       res = hw->ops->set_hw_addr_filt(&hw->hw,
+                                       &hw->hw.hw_filt,
+                                       nw->changed);
+       if (res)
+               pr_debug("failed changed mask %lx\n", nw->changed);
+
+       kfree(nw);
+
+       return;
+}
+
+static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
+{
+       struct mac802154_sub_if_data *priv = netdev_priv(dev);
+       struct hw_addr_filt_notify_work *work;
+
+       work = kzalloc(sizeof(*work), GFP_ATOMIC);
+       if (!work)
+               return;
+
+       INIT_WORK(&work->work, hw_addr_notify);
+       work->dev = dev;
+       work->changed = changed;
+       queue_work(priv->hw->dev_workqueue, &work->work);
+
+       return;
+}
+
+void mac802154_dev_set_ieee_addr(struct net_device *dev)
+{
+       struct mac802154_sub_if_data *priv = netdev_priv(dev);
+       struct mac802154_priv *mac = priv->hw;
+
+       if (mac->ops->set_hw_addr_filt &&
+           memcmp(mac->hw.hw_filt.ieee_addr,
+                  dev->dev_addr, IEEE802154_ADDR_LEN)) {
+               memcpy(mac->hw.hw_filt.ieee_addr,
+                      dev->dev_addr, IEEE802154_ADDR_LEN);
+               set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED);
+       }
+}