Multi-user Authentication

The multi-user authentication allows you to create different profiles for different users or groups of users. The profiles define the access rights to different resources on the Web server. The users which are allowed to access the Web server are in the user database. The multi-user login also allows the Web server to create different pages depending on user.

If you want to use multi-user authentication, you must Enable User Authentication in the Net_Config.c configuration file.

The account defined in the Net_Config.c configuration file is a system administrator account, which has no restrictions. It can not be disabled once the authentication has been enabled in the system configuration. All other accounts are created in a separate HTTP_MultiUser.c module. This file is located in \Keil\ARM\RL\TCPnet\User folder and need to be copied to the project folder, customized by the developer and added to the project.

The following functions are included in this module:

• http_check_account() - checks if the user account exists for the provided credentials.
• http_file_access() - check if the access to the file is allowed for a provided user.

The following system functions are included in the RL-TCPnet library:

• http_get_user_id() - retrieves the user identification number for the user, which is trying to access the resource.

Note

• If the HTTP_MultiUser.c is not added to the project, and the Authentication is enabled, the Web server runs in single user authentication mode.
• In RLARM v5.00 and newer, you can disable a system administrator account, if you define the Authentication Username an empty string.