ipahost: Fix choices of auth_ind parameter, allow to reset parameter

The choices for the auth_ind parameter have been wrong. The choices are now
['radius', 'otp', 'pkinit', 'hardened', '']. The empty string has been added
to be able to rest auth_ind for the host entry.

README-host.md

@@ -280,7 +280,7 @@ Variable | Description | Required
 `mac_address` \| `macaddress` | List of hardware MAC addresses. | no
 `sshpubkey` \| `ipasshpubkey` | List of SSH public keys | no
 `userclass` \| `class` | Host category (semantics placed on this attribute are for local interpretation) | no
-`auth_ind` \| `krbprincipalauthind` | Defines a whitelist for Authentication Indicators. Use 'otp' to allow OTP-based 2FA authentications. Use 'radius' to allow RADIUS-based 2FA authentications. Other values may be used for custom configurations. choices: ["radius", "otp", "pkinit", "hardened"] | no
+`auth_ind` \| `krbprincipalauthind` | Defines a whitelist for Authentication Indicators. Use 'otp' to allow OTP-based 2FA authentications. Use 'radius' to allow RADIUS-based 2FA authentications. Use empty string to reset auth_ind to the initial value. Other values may be used for custom configurations. choices: ["radius", "otp", "pkinit", "hardened", ""] | no
 `requires_pre_auth` \| `ipakrbrequirespreauth` | Pre-authentication is required for the service (bool) | no
 `ok_as_delegate` \| `ipakrbokasdelegate` | Client credentials may be delegated to the service (bool) | no
 `ok_to_auth_as_delegate` \| `ipakrboktoauthasdelegate` | The service is allowed to authenticate on behalf of a client (bool) | no

plugins/modules/ipahost.py

@@ -147,9 +147,10 @@ options:
           Defines a whitelist for Authentication Indicators. Use 'otp' to allow
           OTP-based 2FA authentications. Use 'radius' to allow RADIUS-based 2FA
           authentications. Other values may be used for custom configurations.
+          Use empty string to reset auth_ind to the initial value.
         type: list
         aliases: ["krbprincipalauthind"]
-        choices: ["radius", "otp", "pkinit", "hardened"]
+        choices: ["radius", "otp", "pkinit", "hardened", ""]
         required: false
       requires_pre_auth:
         description: Pre-authentication is required for the service
@@ -277,9 +278,10 @@ options:
       Defines a whitelist for Authentication Indicators. Use 'otp' to allow
       OTP-based 2FA authentications. Use 'radius' to allow RADIUS-based 2FA
       authentications. Other values may be used for custom configurations.
+      Use empty string to reset auth_ind to the initial value.
     type: list
     aliases: ["krbprincipalauthind"]
-    choices: ["radius", "otp", "pkinit", "hardened"]
+    choices: ["radius", "otp", "pkinit", "hardened", ""]
     required: false
   requires_pre_auth:
     description: Pre-authentication is required for the service
@@ -590,7 +592,7 @@ def main():
                        default=None),
         auth_ind=dict(type='list', aliases=["krbprincipalauthind"],
                       default=None,
-                      choices=['password', 'radius', 'otp']),
+                      choices=['radius', 'otp', 'pkinit', 'hardened', '']),
         requires_pre_auth=dict(type="bool", aliases=["ipakrbrequirespreauth"],
                                default=None),
         ok_as_delegate=dict(type="bool", aliases=["ipakrbokasdelegate"],
@@ -835,6 +837,13 @@ def main():
                             if x in args:
                                 del args[x]
 
+                        # Ignore auth_ind if it is empty (for resetting)
+                        # and not set in for the host
+                        if "krbprincipalauthind" not in res_find and \
+                           "krbprincipalauthind" in args and \
+                           args["krbprincipalauthind"] == ['']:
+                            del args["krbprincipalauthind"]
+
                         # For all settings is args, check if there are
                         # different settings in the find result.
                         # If yes: modify