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-rw-r--r--gnu/home/services/ssh.scm58
1 files changed, 57 insertions, 1 deletions
diff --git a/gnu/home/services/ssh.scm b/gnu/home/services/ssh.scm
index d15f5ee912..01917a29cd 100644
--- a/gnu/home/services/ssh.scm
+++ b/gnu/home/services/ssh.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2022 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2023 Janneke Nieuwenhuizen <janneke@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -25,9 +26,11 @@
   #:use-module (gnu services configuration)
   #:use-module (guix modules)
   #:use-module (gnu home services)
+  #:use-module (gnu home services shepherd)
   #:use-module ((gnu home services utils)
                 #:select (object->camel-case-string))
   #:autoload   (gnu packages base) (glibc-utf8-locales)
+  #:use-module (gnu packages ssh)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-34)
   #:use-module (srfi srfi-35)
@@ -36,6 +39,7 @@
             home-openssh-configuration-authorized-keys
             home-openssh-configuration-known-hosts
             home-openssh-configuration-hosts
+            home-ssh-agent-configuration
 
             openssh-host
             openssh-host-host-name
@@ -52,7 +56,8 @@
             openssh-host-accepted-key-types
             openssh-host-extra-content
 
-            home-openssh-service-type))
+            home-openssh-service-type
+            home-ssh-agent-service-type))
 
 (define (serialize-field-name name)
   (match name
@@ -254,3 +259,54 @@ inserted after each of them."
 by providing a @file{~/.ssh/config} file, which is honored by the OpenSSH
 client,@command{ssh}, and by other tools such as @command{guix deploy}.")
    (default-value (home-openssh-configuration))))
+
+
+;;;
+;;; Ssh-agent.
+;;;
+(define-record-type* <home-ssh-agent-configuration>
+  home-ssh-agent-configuration make-home-ssh-agent-configuration
+  home-ssh-agent-configuration?
+  (openssh          home-ssh-agent-openssh          ;file-like
+                    (default openssh))
+  (socket-directory home-ssh-agent-socket-directory ;string
+                    (default #~(string-append %user-runtime-dir "/ssh-agent")))
+  (extra-options    home-ssh-agent-extra-options    ;list of string
+                    (default '())))
+
+(define (home-ssh-agent-services config)
+  "Return a <shepherd-service> for an ssh-agent with CONFIG."
+  (match-record config <home-ssh-agent-configuration>
+    (openssh socket-directory extra-options)
+    (let* ((ssh-agent (file-append openssh "/bin/ssh-agent"))
+           (socket-file #~(string-append #$socket-directory "/socket"))
+           (command #~`(#$ssh-agent
+                        "-D" "-a" ,#$socket-file
+                        #$@extra-options))
+           (log-file #~(string-append %user-log-dir "/ssh-agent.log")))
+      (list (shepherd-service
+             (documentation "Run the ssh-agent.")
+             (provision '(ssh-agent))
+             (modules '((shepherd support)))    ;for '%user-runtime-dir', etc.
+             (start #~(lambda _
+                        (unless (file-exists? #$socket-directory)
+                          (mkdir-p #$socket-directory)
+                          (chmod #$socket-directory #o700))
+                        (fork+exec-command #$command #:log-file #$log-file)))
+             (stop #~(make-kill-destructor)))))))
+
+(define (home-ssh-agent-environment-variables config)
+  '(("SSH_AUTH_SOCK"
+     . "${SSH_AUTH_SOCK-${XDG_RUNTIME_DIR-$HOME/.cache}/ssh-agent/socket}")))
+
+(define home-ssh-agent-service-type
+  (service-type
+   (name 'home-ssh-agent)
+   (default-value (home-ssh-agent-configuration))
+   (extensions
+    (list (service-extension home-shepherd-service-type
+                             home-ssh-agent-services)
+          (service-extension home-environment-variables-service-type
+                             home-ssh-agent-environment-variables)))
+   (description
+    "Install and configure @command{ssh-agent} as a Shepherd service.")))