From 2bffc1adf16f6e83da6964264cdbf3ef1eddfb4b Mon Sep 17 00:00:00 2001
From: Marin <supermarin@users.noreply.github.com>
Date: Fri, 10 Feb 2023 17:13:09 -0500
Subject: [PATCH] nixos/yubikey-agent: Add dependency to pcsd.service

Issue: after installing, running `yubikey-agent -setup` produces the
following error:
```
nixOS: Failed to connect to the YubiKey: connecting to pscs: the Smart
card resource manager is not running
```

More on this issue: https://github.com/FiloSottile/yubikey-agent/issues/137
---
 nixos/modules/services/security/yubikey-agent.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/services/security/yubikey-agent.nix b/nixos/modules/services/security/yubikey-agent.nix
index c91ff3e69a0a..ee57ec8bf812 100644
--- a/nixos/modules/services/security/yubikey-agent.nix
+++ b/nixos/modules/services/security/yubikey-agent.nix
@@ -57,6 +57,9 @@ in
       ];
     };
 
+    # Yubikey-agent expects pcsd to be running in order to function.
+    services.pcscd.enable = true;
+
     environment.extraInit = ''
       if [ -z "$SSH_AUTH_SOCK" -a -n "$XDG_RUNTIME_DIR" ]; then
         export SSH_AUTH_SOCK="$XDG_RUNTIME_DIR/yubikey-agent/yubikey-agent.sock"