Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / wimax / op-state-get.c

diff --git a/kernel/net/wimax/op-state-get.c b/kernel/net/wimax/op-state-get.c
new file mode 100644 (file)
index 0000000..e6788d2
--- /dev/null
+++ b/kernel/net/wimax/op-state-get.c
@@ -0,0 +1,65 @@
+/*
+ * Linux WiMAX
+ * Implement and export a method for getting a WiMAX device current state
+ *
+ * Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * Based on previous WiMAX core work by:
+ *  Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com>
+ *  Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * 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.
+ */
+
+#include <net/wimax.h>
+#include <net/genetlink.h>
+#include <linux/wimax.h>
+#include <linux/security.h>
+#include "wimax-internal.h"
+
+#define D_SUBMODULE op_state_get
+#include "debug-levels.h"
+
+
+/*
+ * Exporting to user space over generic netlink
+ *
+ * Parse the state get command from user space, return a combination
+ * value that describe the current state.
+ *
+ * No attributes.
+ */
+int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info)
+{
+       int result, ifindex;
+       struct wimax_dev *wimax_dev;
+
+       d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info);
+       result = -ENODEV;
+       if (info->attrs[WIMAX_GNL_STGET_IFIDX] == NULL) {
+               pr_err("WIMAX_GNL_OP_STATE_GET: can't find IFIDX attribute\n");
+               goto error_no_wimax_dev;
+       }
+       ifindex = nla_get_u32(info->attrs[WIMAX_GNL_STGET_IFIDX]);
+       wimax_dev = wimax_dev_get_by_genl_info(info, ifindex);
+       if (wimax_dev == NULL)
+               goto error_no_wimax_dev;
+       /* Execute the operation and send the result back to user space */
+       result = wimax_state_get(wimax_dev);
+       dev_put(wimax_dev->net_dev);
+error_no_wimax_dev:
+       d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
+       return result;
+}