AD: Add additional service to support Global Catalog lookups

When fixed host names of AD servers are configured in the config file,
we can't know (unlike when service discovery is at play) if the servers
are Global Catalogs or not. This patch adds a private data to servers
read from the config file that denote whether the server can be tried
for contacting the Global Catalog port or just LDAP. The GC or LDAP URIs
are generated based on contents of this private data structure.

Because SSSD sticks to a working server, we don't have to disable or
remove the faulty GC servers from the list.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/providers/ad/ad_common.h b/src/providers/ad/ad_common.h
index 792f32e08..801815528 100644
--- a/src/providers/ad/ad_common.h
+++ b/src/providers/ad/ad_common.h
@@ -27,6 +27,8 @@
 #include "providers/ldap/ldap_common.h"
 
 #define AD_SERVICE_NAME "AD"
+/* The port the Global Catalog runs on */
+#define AD_GC_PORT      3268
 
 struct ad_options;
 
@@ -44,11 +46,14 @@ enum ad_basic_opt {
 
 struct ad_id_ctx {
     struct sdap_id_ctx *sdap_id_ctx;
+    struct sdap_id_conn_ctx *ldap_ctx;
+    struct sdap_id_conn_ctx *gc_ctx;
     struct ad_options *ad_options;
 };
 
 struct ad_service {
     struct sdap_service *sdap;
+    struct sdap_service *gc;
     struct krb5_service *krb5_service;
 };