From 8c5246eb6e38cfb97a1580876fe484e1a038fef6 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <ldb@leibniz-psychology.org>
Date: Wed, 19 Feb 2020 11:13:54 +0100
Subject: [PATCH 2/2] ssh: Add Kerberos-support to ssh:// daemon URLs
* guix/ssh.scm (open-ssh-session): Fall back to GSSAPI if public key
authentication does not work
---
doc/guix.texi | 5 +++--
guix/ssh.scm | 15 ++++++++++-----
2 files changed, 13 insertions(+), 7 deletions(-)
@@ -6811,8 +6811,9 @@ instruct it to listen for TCP connections (@pxref{Invoking guix-daemon,
@item ssh
@cindex SSH access to build daemons
These URIs allow you to connect to a remote daemon over
-SSH@footnote{This feature requires Guile-SSH (@pxref{Requirements}).}.
-A typical URL might look like this:
+SSH. This feature requires Guile-SSH (@pxref{Requirements}) and a working
+@code{guile} binary in @code{PATH} on the destination machine. It supports
+public key and GSSAPI authentication. A typical URL might look like this:
@example
ssh://charlie@@guix.example.org:22
@@ -157,11 +157,16 @@ server at '~a': ~a")
(session-set! session 'timeout timeout)
session)
(x
- (disconnect! session)
- (raise (condition
- (&message
- (message (format #f (G_ "SSH authentication failed for '~a': ~a~%")
- host (get-error session)))))))))
+ (match (userauth-gssapi! session)
+ ('success
+ (session-set! session 'timeout timeout)
+ session)
+ (x
+ (disconnect! session)
+ (raise (condition
+ (&message
+ (message (format #f (G_ "SSH authentication failed for '~a': ~a~%")
+ host (get-error session)))))))))))
(x
;; Connection failed or timeout expired.
(raise (condition
--
2.20.1