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>

3 files changed, 97 insertions, 1 deletions

diff --git a/net/mac802154/Makefile b/net/mac802154/Makefile
index 4d9dd0f3b969..6b348b07a765 100644
--- 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 7ec2821c574b..7d9a0d4a99fd 100644
--- 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
index 000000000000..ab59821ec729
--- /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);
+        }
+}