1 files changed, 110 insertions, 0 deletions

diff --git a/src/transport/wlan/helper_common.c b/src/transport/wlan/helper_common.c
new file mode 100644
index 000000000..5171403c8
--- /dev/null
+++ b/src/transport/wlan/helper_common.c
@@ -0,0 +1,110 @@
+/*
+ * helper_common.c
+ *
+ *  Created on: 28.03.2011
+ *      Author: David Brodski
+ */
+
+#include <sys/socket.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <resolv.h>
+#include <string.h>
+#include <utime.h>
+#include <unistd.h>
+#include <getopt.h>
+
+//#include "platform.h"
+#include "gnunet_constants.h"
+#include "gnunet_os_lib.h"
+#include "gnunet_transport_plugin.h"
+#include "transport.h"
+#include "gnunet_util_lib.h"
+#include "plugin_transport_wlan.h"
+#include "gnunet_common.h"
+#include "gnunet_transport_plugin.h"
+//#include "gnunet_util_lib.h"
+
+/**
+ * function to create GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL message for plugin
+ * @param buffer pointer to buffer for the message
+ * @param mac pointer to the mac address
+ * @return number of bytes written
+ */
+
+int
+send_mac_to_plugin(char * buffer, uint8_t * mac)
+{
+
+  struct Wlan_Helper_Control_Message macmsg;
+
+  memcpy(macmsg.mac.mac, mac, sizeof(struct MacAddress));
+  macmsg.hdr.size = htons(sizeof(struct Wlan_Helper_Control_Message));
+  macmsg.hdr.type = htons(GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL);
+
+  memcpy(buffer, &macmsg, sizeof(struct Wlan_Helper_Control_Message));
+  return sizeof(struct Wlan_Helper_Control_Message);
+}
+
+/*
+   *  Copyright (c) 2008, Thomas d'Otreppe
+   *
+   *  Common OSdep stuff
+   *
+   *  This program is free software; you can redistribute it and/or modify
+   *  it under the terms of the GNU General Public License as published by
+   *  the Free Software Foundation; either version 2 of the License, or
+   *  (at your option) any later version.
+   *
+   *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+   */
+
+/**
+ * Return the frequency in Mhz from a channel number
+ */
+int getFrequencyFromChannel(int channel)
+{
+        static int frequencies[] = {
+                -1, // No channel 0
+                2412, 2417, 2422, 2427, 2432, 2437, 2442, 2447, 2452, 2457, 2462, 2467, 2472, 2484,
+                -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // Nothing from channel 15 to 34 (exclusive)
+                5170, 5175, 5180, 5185, 5190, 5195, 5200, 5205, 5210, 5215, 5220, 5225, 5230, 5235, 5240, 5245,
+                5250, 5255, 5260, 5265, 5270, 5275, 5280, 5285, 5290, 5295, 5300, 5305, 5310, 5315, 5320, 5325,
+                5330, 5335, 5340, 5345, 5350, 5355, 5360, 5365, 5370, 5375, 5380, 5385, 5390, 5395, 5400, 5405,
+                5410, 5415, 5420, 5425, 5430, 5435, 5440, 5445, 5450, 5455, 5460, 5465, 5470, 5475, 5480, 5485,
+                5490, 5495, 5500, 5505, 5510, 5515, 5520, 5525, 5530, 5535, 5540, 5545, 5550, 5555, 5560, 5565,
+                5570, 5575, 5580, 5585, 5590, 5595, 5600, 5605, 5610, 5615, 5620, 5625, 5630, 5635, 5640, 5645,
+                5650, 5655, 5660, 5665, 5670, 5675, 5680, 5685, 5690, 5695, 5700, 5705, 5710, 5715, 5720, 5725,
+                5730, 5735, 5740, 5745, 5750, 5755, 5760, 5765, 5770, 5775, 5780, 5785, 5790, 5795, 5800, 5805,
+                5810, 5815, 5820, 5825, 5830, 5835, 5840, 5845, 5850, 5855, 5860, 5865, 5870, 5875, 5880, 5885,
+                5890, 5895, 5900, 5905, 5910, 5915, 5920, 5925, 5930, 5935, 5940, 5945, 5950, 5955, 5960, 5965,
+                5970, 5975, 5980, 5985, 5990, 5995, 6000, 6005, 6010, 6015, 6020, 6025, 6030, 6035, 6040, 6045,
+                6050, 6055, 6060, 6065, 6070, 6075, 6080, 6085, 6090, 6095, 6100
+        };
+
+        return (channel > 0 && channel <= 221) ? frequencies[channel] : -1;
+}
+
+/**
+ * Return the channel from the frequency (in Mhz)
+ */
+int getChannelFromFrequency(int frequency)
+{
+        if (frequency >= 2412 && frequency <= 2472)
+                return (frequency - 2407) / 5;
+        else if (frequency == 2484)
+                return 14;
+        else if (frequency >= 5000 && frequency <= 6100)
+                return (frequency - 5000) / 5;
+        else
+                return -1;
+}