[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/net/ieee802154/netlink.c b/ap/os/linux/linux-3.4.x/net/ieee802154/netlink.c
new file mode 100644
index 0000000..c8097ae
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/ieee802154/netlink.c
@@ -0,0 +1,139 @@
+/*
+ * 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 <slapin@ossfans.org>
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/gfp.h>
+#include <net/genetlink.h>
+#include <linux/nl802154.h>
+
+#include "ieee802154.h"
+
+static unsigned int ieee802154_seq_num;
+static DEFINE_SPINLOCK(ieee802154_seq_lock);
+
+struct genl_family nl802154_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = 0,
+ .name = IEEE802154_NL_NAME,
+ .version = 1,
+ .maxattr = IEEE802154_ATTR_MAX,
+};
+
+/* Requests to userspace */
+struct sk_buff *ieee802154_nl_create(int flags, u8 req)
+{
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ unsigned long f;
+
+ if (!msg)
+ return NULL;
+
+ spin_lock_irqsave(&ieee802154_seq_lock, f);
+ hdr = genlmsg_put(msg, 0, ieee802154_seq_num++,
+ &nl802154_family, flags, req);
+ spin_unlock_irqrestore(&ieee802154_seq_lock, f);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
+{
+ /* XXX: nlh is right at the start of msg */
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
+
+ if (genlmsg_end(msg, hdr) < 0)
+ goto out;
+
+ return genlmsg_multicast(msg, 0, group, GFP_ATOMIC);
+out:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
+ int flags, u8 req)
+{
+ void *hdr;
+ struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+
+ if (!msg)
+ return NULL;
+
+ hdr = genlmsg_put_reply(msg, info,
+ &nl802154_family, flags, req);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return NULL;
+ }
+
+ return msg;
+}
+
+int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
+{
+ /* XXX: nlh is right at the start of msg */
+ void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
+
+ if (genlmsg_end(msg, hdr) < 0)
+ goto out;
+
+ return genlmsg_reply(msg, info);
+out:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+int __init ieee802154_nl_init(void)
+{
+ int rc;
+
+ rc = genl_register_family(&nl802154_family);
+ if (rc)
+ goto fail;
+
+ rc = nl802154_mac_register();
+ if (rc)
+ goto fail;
+
+ rc = nl802154_phy_register();
+ if (rc)
+ goto fail;
+
+ return 0;
+
+fail:
+ genl_unregister_family(&nl802154_family);
+ return rc;
+}
+
+void __exit ieee802154_nl_exit(void)
+{
+ genl_unregister_family(&nl802154_family);
+}
+