tree e82a5b0d31dd2d3f1d28c4fb25819ae6f9e449ef
parent 7a9463f0b8f23b3f1c29bcb7f86e40c5dd4f3a7c
author Václav Kubernát <kubernat@cesnet.cz> 1580920693 +0100
committer Václav Kubernát <kubernat@cesnet.cz> 1604486451 +0100

Support connecting to NETCONF clients via SSH

libnetconf doesn't have nice APIs for ssh connection, but allows users
to supply the connection by themselves. One way is to use libssh (which
libnetconf uses) and supply that. However, I found that using libssh to
implement an interactive CLI isn't very easy and I'd have to implement a
lot of functionality (like authentication) by myself, attempts were
made, but I was really only imitating the interface of OpenSSH.
Fortunately, libnetconf can also communicate over file descriptors, and
it is easy to get that from OpenSSH, so I fork it and use its
stdin/stdout. On top of that, OpenSSH is very clever and knows that I'm
using it like this, so it still allows entering passwords and accepting
host keys even though its stdin/stdout isn't a terminal.

Change-Id: I27816e038bed0a82a028c8e83c15455fd514c35e