[SSSD] [PATCH] IPA: default krb5_fast_principal to host/$client@$realm

Alexander Bokovoy abokovoy at redhat.com
Mon Feb 17 17:50:43 UTC 2014


On Fri, 14 Feb 2014, Pavel Březina wrote:
>IPA: default krb5_fast_principal to host/$client@$realm
>
>If krb5_fast_principal is not set in sssd.conf it was set to
>host/$client, KRB5 default realm was used which doesn't have to be the
>same as realm used for IPA, thus authentication failed when using FAST.

>From ca2a202739c232c6b70a8d392ba69b3a57b64783 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina at redhat.com>
>Date: Fri, 14 Feb 2014 11:45:50 +0100
>Subject: [PATCH] IPA: default krb5_fast_principal to host/$client@$realm
>
>If krb5_fast_principal is not set in sssd.conf it was set to host/$client,
>KRB5 default realm was used which doesn't have to be the same as realm
>used for IPA, thus authentication failed when using FAST.
>---
> src/providers/ipa/ipa_common.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
>diff --git a/src/providers/ipa/ipa_common.c b/src/providers/ipa/ipa_common.c
>index c0b6ee2ea9841c549f561195cab3ed38ecc626b3..f84748267d65bedbadf39db3466d28502bfa0e3e 100644
>--- a/src/providers/ipa/ipa_common.c
>+++ b/src/providers/ipa/ipa_common.c
>@@ -666,13 +666,15 @@ int ipa_get_auth_options(struct ipa_options *ipa_opts,
>     }
> 
>     /* If krb5_fast_principal was not set explicitly, default to
>-     * host/$client_hostname
>+     * host/$client_hostname at REALM
>      */
>     value = dp_opt_get_string(ipa_opts->auth, KRB5_FAST_PRINCIPAL);
>     if (value == NULL) {
>-        value = talloc_asprintf(ipa_opts->auth, "host/%s",
>+        value = talloc_asprintf(ipa_opts->auth, "host/%s@%s",
>                                     dp_opt_get_string(ipa_opts->basic,
>-                                                      IPA_HOSTNAME));
>+                                                      IPA_HOSTNAME),
>+                                    dp_opt_get_string(ipa_opts->auth,
>+                                                      KRB5_REALM));
>         if (value == NULL) {
>             DEBUG(SSSDBG_CRIT_FAILURE, "Cannot set %s!\n",
>                      ipa_opts->auth[KRB5_FAST_PRINCIPAL].opt_name);
ACK.

-- 
/ Alexander Bokovoy



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