NWMUDS:StartScan: Difference between revisions

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| Output buffer max size
| Output buffer max size
|-
|-
| 2
| 2-14
| ?
| Input [[NWM_Services|ScanInputStruct]].
|-
| 3
| ?
|-
| 4-5
| MAC address? The 6-bytes located here are normally all 0xFF.
|-
| 6-14
| Unknown, usually zero / uninitialized?
|-
|-
| 15
| 15
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|-
|-
| 18
| 18
| Input handle
| Input event handle
|-
|-
| 19
| 19
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|-
|-
| 20
| 20
| Output buffer ptr
| Output [[NWM_Services|BeaconDataReply]] buffer ptr
|}
|}


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=Description=
=Description=
The input maxsize is written to outbuf+0. The total amount of data written to the output starting at offset 0x0, is written to outbuf+4. Outbuf+8 is zero when the buffer contains no actual received data, 1 otherwise. Therefore, when the output contains no actual received data the size value at outbuf+4 is set to 0xC.
This returns beacon data for all UDS wifi beacons received by this system, with the specified wlancommID+ID8. See also the scaninput struct.
 
Official user processes create a new event handle which is then passed to this command. However, those user processes don't save that handle ''anywhere'' afterwards.


The following is the structure of the data at outbuf+0xC. The data starting at +0x1C is the data from the entire raw beacon data, starting at the 802.11 management frame header. It's unknown what exactly the data prior to that is.
This command can ''only'' be used when not connected to a network.

Latest revision as of 08:38, 23 July 2023

Request

Index Word Description
0 Header code [0x000F0404]
1 Output buffer max size
2-14 Input ScanInputStruct.
15 wlancommID
16 This is the ID also located at offset 0xE in the CTR-generation structure.
17 Value 0x0
18 Input event handle
19 (Size<<4) | 12
20 Output BeaconDataReply buffer ptr

Response

Index Word Description
0 Header code
1 Result code

Description

This returns beacon data for all UDS wifi beacons received by this system, with the specified wlancommID+ID8. See also the scaninput struct.

Official user processes create a new event handle which is then passed to this command. However, those user processes don't save that handle anywhere afterwards.

This command can only be used when not connected to a network.

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