README for key-manager project

key-manager project contains of two parts:
1) the server part, that is implemented as a daemon that has vast rights for
vulnerable, security-related data, and that may be trusted by its clients.

2) the client part, libkey-manager-client: a library that allows programs to
communicate with the server part.

The libkey-manager-client library's API is available in the header file
src/include/key-manager.h.

The libkey-manager-client API may be used to:
#TODO

key-manager:

The server part of manager is implemented in a /src/manager directory.
The implementation is divided into:
    communication manager part: that is responsible for threads and communication management
    with no awareness of what information is being transferred. This part is
    implemented by SocketManager class that works with GenericSocketService as
    a generalization for services that key-manager provides.
and
    services part: implemented as classes derived from GenericSocketService
    grouped in src/manager/service directory that defines actions done by
    key-manager after receiving certain requests from client side.

Adding services to key-manager should be done by creating a new class
derived from GenericSocketService, implementing proper functions for it,
registering it to SocketManager in main loop and making unix socket for service.

The paths of unix sockets used in communication between server and libclient are
defined in src/manager/common directory. Sockets themselves are configured in
files in systemd directory.