Some README files

README

+This repository contains various utilities and small programs which were tiny
+or insignificant enough not to get their own repository. For further details,
+look into README of each of the subdirectories.

logsend/README

@@ -11,6 +11,4 @@ The `whatsnew` is a tool that remembers what lines of the log were already sent
 and filters them out, so they are sent only once.
 
 The `upload.cgi` is a script that sits on the server and concatenates the logs
-from the clients. It does not do any kind of authentication. It is expected
-that the web server will be configured to at least restrict the access to the
-ones inside the VPN.
+from the clients. It authenticates the data by checking the HMAC provided with the data.

oneshot/README

+Oneshot
+=======
+
+Utility for making sure a script is run exactly once. Whatever is in the
+scripts directory and installed on the turris router, it is run the first time
+oneshot is run since then. Then oneshot notes it was run and never runs it
+again.
+
+It is expected the scripts whose effect is already included in the image are
+noted not to be run as well, by whatever installs them.