s3: Add wbinfo --dc-info

wbinfo --dc-info prints the current DC name and IP address. This helps
diagnosing problems that might happen when a later wbinfo --ping-dc fails.

This patch started out by using the SAF and NBT cache entires, but those are
relatively short-lived. So I decided to invent a new gencache entry with a very
long timeout. We need to go via the gencache because when for some reason a
winbind child process is stuck, we can't query it for the current DC it's
connected to. This must eventually go away again when we have a fully async
winbind.

Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Wed Jan 19 08:40:28 CET 2011 on sn-devel-104

1 files changed, 4 insertions, 0 deletions

diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index dc563c9dac7..5cb6c4c1555 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -170,6 +170,9 @@ NTSTATUS cm_connect_lsa_tcp(struct winbindd_domain *domain,
 			    struct rpc_pipe_client **cli);
 NTSTATUS cm_connect_netlogon(struct winbindd_domain *domain,
 			     struct rpc_pipe_client **cli);
+bool fetch_current_dc_from_gencache(TALLOC_CTX *mem_ctx,
+				    const char *domain_name,
+				    char **p_dc_name, char **p_dc_ip);
 
 /* The following definitions come from winbindd/winbindd_cred_cache.c  */
 
@@ -322,6 +325,7 @@ enum winbindd_result winbindd_dual_list_trusted_domains(struct winbindd_domain *
 							struct winbindd_cli_state *state);
 void winbindd_show_sequence(struct winbindd_cli_state *state);
 void winbindd_domain_info(struct winbindd_cli_state *state);
+void winbindd_dc_info(struct winbindd_cli_state *state);
 void winbindd_ping(struct winbindd_cli_state *state);
 void winbindd_info(struct winbindd_cli_state *state);
 void winbindd_interface_version(struct winbindd_cli_state *state);