1 /*

     2 * Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Definition of scan frame offsets.

    15 *

    16 */

    17 

    18 

    19 #ifndef GENSCANOFFSETS_H

    20 #define GENSCANOFFSETS_H

    21 

    22 /**

    23  * Definitions for static control information header preceding the

    24  * actual beacon/probe response frame data.

    25  */

    26 

    27 /** Length of the control information header. */

    28 const u32_t CNTRL_HEADER_LEN            = 12;

    29 /** Offset for RCPI value. */

    30 const u32_t CNTRL_RX_LEVEL_OFFSET       = 0;

    31 /** Offset for SNR value. Deprecated. */

    32 const u32_t CNTRL_RX_SNR_OFFSET         = 4;

    33 /** Offset for beacon/probe response frame data length. */

    34 const u32_t CNTRL_LENGTH_OFFSET         = 8;

    35 

    36 /**

    37  * Offsets for actual 802.11 beacon/probe response frame data.

    38  */

    39 

    40 /** Start of beacon/probe response frame data. */

    41 const u32_t DOT11_BASE_OFFSET           = CNTRL_HEADER_LEN;

    42 /** Start of Frame Control field (2 octets). */

    43 const u32_t MGMT_FRAME_CONTROL_OFFSET   = DOT11_BASE_OFFSET;

    44 /** Start of Duration field (2 octets). */

    45 const u32_t MGMT_DURATION_OFFSET        = DOT11_BASE_OFFSET + 2;

    46 /** Start of Destination Address field (6 octets). */

    47 const u32_t MGMT_DA_OFFSET              = DOT11_BASE_OFFSET + 4;

    48 /** Start of Source Address field (6 octets). */

    49 const u32_t MGMT_SA_OFFSET              = DOT11_BASE_OFFSET + 10;

    50 /** Start of BSSID field (6 octets ). */

    51 const u32_t MGMT_BSSID_OFFSET           = DOT11_BASE_OFFSET + 16;

    52 /** Start of Sequence Control field (2 octets). */

    53 const u32_t MGMT_SEQ_CONTROL_OFFSET     = DOT11_BASE_OFFSET + 22;

    54 /** Start of Timestamp field (8 octets). */

    55 const u32_t MGMT_TIMESTAMP_OFFSET       = DOT11_BASE_OFFSET + 24;

    56 /** Start of Beacon Interval field (2 octets). */

    57 const u32_t MGMT_BEACON_INTERVAL_OFFSET = DOT11_BASE_OFFSET + 32;

    58 /** Start of Capability field (2 octets). */

    59 const u32_t MGMT_CAPABILITY_OFFSET      = DOT11_BASE_OFFSET + 34;

    60 /** Start of first IE in beacon/probe response frame. */

    61 const u32_t MGMT_BODY_OFFSET            = DOT11_BASE_OFFSET + 36;

    62 

    63 #endif // GENSCANOFFSETS_H