Need to know client/caller pid on the server side

[masala north]

I did try it. But the pid returned is  -1. I want in the daemon  side, the client's pid. There are certain services I want to allow for  a limited set of clients serviced by this daemon. unix_user allows  returning 0 (since I have the intialized variable passed in).
  
  Here is the daemon code snippet
  
  install_err security_service_allow_install (
          SecurityObject *obj,
          gchar *deb_path,
          gerror **error)
  {
    
    unsigned long pid;
    DBusConnection *conn;
  
    conn = dbus_g_connection_get_connection(obj->connection);
    rv = dbus_connection_get_unix_process_id(conn, &pid);
  
    if (client_allowed_to_install(pid)) {
        install();
    }
  
  Thanks
  John.

  
Havoc Pennington <hp at redhat.com> wrote:  Hi,

masala north wrote:
> We are developing a security frame work sitting on top of dbus. Is it 
> possible to get the pid of the calling/client process?
> 

If you are talking to another program directly (no bus daemon) you would 
use dbus_connection_get_unix_process_id / dbus_connection_get_unix_user

If you are using the bus daemon, you need to ask the bus daemon to call 
those functions for you.

To see the methods on the bus daemon type this command:
  dbus-send --print-reply --dest=org.freedesktop.DBus 
org.freedesktop.DBus.Introspectable.Introspect

In this case you want GetConnectionUnixUser and GetConnectionUnixProcessID.

There is a convenience function dbus_bus_get_unix_user() that calls 
GetConnectionUnixUser, but the convenience function makes a blocking 
call. There's no convenience function for the process ID one.

To get the name of the client use dbus_message_get_sender()

Havoc




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