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Introduction

Introduction

                   Updation                                    After the updating of dynamic hostapd changes in wifi WiFi hal layer , we are able to resolve plenty of lead to resolution of various issues like timeout errors while trying to se

Design Considerations

• Decision Overview

< Describe the system design in broad terms . Consider benefits, costs and schedule and technical risks. Describe how the proposed solution aligns with the enterprise architecture. >

• Other Considerations (DAR)

<Alternative designs considered and why one was chosen>

Architecture

• Layout

           <Architecture Diagram>

• Communication

          <Describe the communication between the sub-systems. (Diagrams may be used to illustrate communications). >

External Interfaces (Input/Output files or data sets)

< Identify input interfaces, function call protocol, and the nature of the data structures passed across the interface between the sub-modules>

< Identify output interfaces, function call protocol, and the nature of the data structures passed across the interface. >

Data Model

<Provide a description of the data model>

Limitations

             < Describe the cases that are identified as problem but unable to report to it due to various factors. Describe the factors >

Future Enhancements

when we try to set values to wifi parameters such as ssid, password, SecurityMode, channel etc through dmcli commands or WebUI. Moreover, features such as xfinity-wifi,snmp set/get of wifi calls ,factory-reset timeout errors are also resolved. This enhanced the performance of WebUI.

We resolved this scenario with support of hostapd_cli.
hostapd_cli is a text-based frontend program for interacting with hostapd.
hostapd is a user  space daemon  for access point and authentication servers. It implements IEEE 802.11 access point management, IEEE 802.1X/WPA/WPA2/EAP Authenticators and RADIUS authentication server.

Design Considerations

                   Upgraded hostapd version from 2.2 to 2.5 in emulator because this version have the support of enabling /disabling of hostapd  at runtime  through hostapd_cli.

Following wifi hal api's are added and modified in wifi_hal.c ,

Modified wifi hal api's are :

1. wifi_setSSIDName()
2. wifi_getApEnable()
3. wifi_getApStatus()
4. wifi_setApSsidAdvertisementEnable()
5. wifi_setSSIDEnable()
6. wifi_setApEnable()
7. wifi_getSSIDStatus()
8. wifi_setPreferPrivateConnection()
9. wifi_stopHostApd()
10. wifi_startHostApd()
11. wifi_restartHostApd()
12. wifi_setApEnable()
13. wifi_setApSecurityModeEnabled()
14. wifi_setApSecurityPreSharedKey()
15. wifi_setApSecurityKeyPassphrase()
16. wifi_setApWpsEnable()
17. wifi_setApWpsConfigMethodsEnabled()
18. wifi_setApWpsDevicePIN()
19. wifi_getRadioEnable()
20. wifi_setRadioEnable()
21. wifi_getRadioStatus()
22. wifi_setRadioChannelMode()
23. wifi_setRadioChannel()
24. wifi_setRadioAutoChannelEnable()
25. wifi_setRadioOperatingChannelBandwidth()
26. wifi_setApSecurityKeyPassphrase()

Newly added dynamic wifi hal api's:

1. Stop_Start_Broadcasting_SSID_Names_Hostapd_Process()
2. GetInterfaceName_HostapdConf()
3. Dynamically_Disabling_hostapd_process()
4. Dynamically_Enabling_hostapd_process()
5. Dynamically_Updated_SupportedRated_hostapd_process()
6. Dynamically_Updated_Password_hostapd_process()
7. Dynamically_Updated_SSIDAdvertisement_Hostapd_Process()
8. Dynamically_Updated_SSIDName_Hostapd_Process()
9. DYnamically_Updated_OperatingChannelBandwidth()
10. Dynamically_Updated_Security_Encryption_Modes_Hostapd_Process()
11. Dynamically_Updated_Channel_Value_hostapd_process()
12. Dynamically_Enabling_And_Disabling_WPS_Support_Hostapd_Process()
13. Dynamically_Updated_WPS_ConfigMethods_Hostapd_process()
14. Dynamically_Updated_WPS_ApPin_Hostapd_Process()         

Architecture

1. Code flow of setting the private WiFi 2G SSID

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Data Model

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