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Usage.md

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Usage

Within an application, we can qualify our files according to several types :

  • conf : config files
  • data : data files
  • exec : executable files
  • http : http files
  • icon : icon file
  • id : basename app directory
  • lib : libraries files
  • public : public files

Moreover an application can have particular rights, for example for a can socket creation.

The first thing to do is to send all these informations to the sec-lsm-manager so it can proceed with the installation.

Library

To start using the library, we will create an handler for informations :

#include <sec-lsm-manager.h>
sec_lsm_manager_t *sec_lsm_manager = NULL;
sec_lsm_manager_create(&sec_lsm_manager);

Install

We need to define an id to identify our application :

sec_lsm_manager_set_id(sec_lsm_manager, "demo-app");

An id can only be composed of alpha numeric character, '-' and '_'. It must also be composed of at least two characters.

We will then qualify the different files of our application :

sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/", type_id);

sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/bin/", type_exec);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/bin/launcher.sh", type_exec);

sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/data/", type_data);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/data/db.sqlite", type_data);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/data/info.json", type_data);

sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/etc/", type_conf);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/etc/file1.conf", type_conf);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/etc/file2.config", type_conf);

sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/www/", type_http);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/www/index.html", type_http);
sec_lsm_manager_add_path(sec_lsm_manager, "/opt/demo-app/www/style.css", type_http);

A path must be composed of at least two characters.

You can then add permissions :

sec_lsm_manager_add_permission(sec_lsm_manager, "urn:AGL::partner:create-can-socket")

A permission must be composed of at least two characters.

For more information about permissions : [Permissions]({% chapter_link sec-lsm-manager.permissions-definition %})

And finally we can install our application security context :

sec_lsm_manager_install(sec_lsm_manager);

Uninstall

To uninstall the application security context, you must define its id :

sec_lsm_manager_set_id(sec_lsm_manager, "demo-app");
sec_lsm_manager_uninstall(sec_lsm_manager);

Additional

It is possible to display the status of a handler with the display function :

sec_lsm_manager_display(sec_lsm_manager);

⚠ If an error occurs, a flag is raised and it is impossible to continue without using the clear function

sec_lsm_manager_clear(sec_lsm_manager);

It is also necessary to free the handle created at the end :

sec_lsm_manager_destroy(sec_lsm_manager);

Command Line

It is possible to use the previous functions easily on the command line thanks to the binary : sec-lsm-manager-cmd.

$ sec-lsm-manager-cmd
>> initialization success
id demo-app
>> id set
path "/opt/demo-app/" id
>> add path '"/opt/demo-app"' with type id
permission "urn:AGL::partner:create-can-socket"
>> add permission "urn:AGL::partner:create-can-socket"
display
################## SECURE APP ##################
id : demo-app
path : "/opt/demo-app" id
permission : "urn:AGL::partner:create-can-socket"
################################################
install