moved the sequence number fetch into the backend, and fetch the

sequence number via ldap when using ads
(This used to be commit 9a084f0bb91883224ad44e2b76417d10c15cce42)

6 files changed, 77 insertions, 80 deletions

diff --git a/source3/nsswitch/winbindd.h b/source3/nsswitch/winbindd.h
index cfe3e8c29f..21dca93af5 100644
--- a/source3/nsswitch/winbindd.h
+++ b/source3/nsswitch/winbindd.h
@@ -134,6 +134,9 @@ struct winbindd_methods {
 				    uint32 group_rid, uint32 *num_names, 
 				    uint32 **rid_mem, char ***names, 
 				    uint32 **name_types);
+
+	/* return the current global sequence number */
+	uint32 (*sequence_number)(struct winbindd_domain *domain);
 };
 
 /* Structures to hold per domain information */
diff --git a/source3/nsswitch/winbindd_ads.c b/source3/nsswitch/winbindd_ads.c
index c5aebad11b..145f2b68d1 100644
--- a/source3/nsswitch/winbindd_ads.c
+++ b/source3/nsswitch/winbindd_ads.c
@@ -562,6 +562,20 @@ done:
 	return status;
 }
 
+/* find the sequence number for a domain */
+static uint32 sequence_number(struct winbindd_domain *domain)
+{
+	uint32 usn;
+	ADS_STRUCT *ads = NULL;
+
+	ads = ads_cached_connection(domain);
+	if (!ads) return DOM_SEQUENCE_NONE;
+
+	if (!ads_USN(ads, &usn)) return DOM_SEQUENCE_NONE;
+
+	return usn;
+}
+
 /* the ADS backend methods are exposed via this structure */
 struct winbindd_methods ads_methods = {
 	query_user_list,
@@ -570,7 +584,8 @@ struct winbindd_methods ads_methods = {
 	sid_to_name,
 	query_user,
 	lookup_usergroups,
-	lookup_groupmem
+	lookup_groupmem,
+	sequence_number
 };
 
 #endif
diff --git a/source3/nsswitch/winbindd_cache.c b/source3/nsswitch/winbindd_cache.c
index 24a2118fb1..32ef3526fa 100644
--- a/source3/nsswitch/winbindd_cache.c
+++ b/source3/nsswitch/winbindd_cache.c
@@ -47,61 +47,6 @@ void winbindd_cache_init(void)
 		DEBUG(0, ("Unable to open tdb cache - user and group caching disabled\n"));
 }
 
-/* find the sequence number for a domain */
-
-static uint32 domain_sequence_number(struct winbindd_domain *domain)
-{
-	TALLOC_CTX *mem_ctx;
-	CLI_POLICY_HND *hnd;
-	SAM_UNK_CTR ctr;
-	uint16 switch_value = 2;
-	NTSTATUS result;
-	uint32 seqnum = DOM_SEQUENCE_NONE;
-	POLICY_HND dom_pol;
-	BOOL got_dom_pol = False;
-	uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
-
-	if (!(mem_ctx = talloc_init()))
-		return DOM_SEQUENCE_NONE;
-
-	/* Get sam handle */
-
-	if (!(hnd = cm_get_sam_handle(domain->name)))
-		goto done;
-
-	/* Get domain handle */
-
-	result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol, 
-							des_access, &domain->sid, &dom_pol);
-
-	if (!NT_STATUS_IS_OK(result))
-		goto done;
-
-	got_dom_pol = True;
-
-	/* Query domain info */
-
-	result = cli_samr_query_dom_info(hnd->cli, mem_ctx, &dom_pol,
-							switch_value, &ctr);
-
-	if (NT_STATUS_IS_OK(result)) {
-		seqnum = ctr.info.inf2.seq_num;
-		DEBUG(10,("domain_sequence_number: for domain %s is %u\n", domain->name, (unsigned)seqnum ));
-	} else {
-		DEBUG(10,("domain_sequence_number: failed to get sequence number (%u) for domain %s\n",
-			(unsigned)seqnum, domain->name ));
-	}
-
-  done:
-
-	if (got_dom_pol)
-		cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
-
-	talloc_destroy(mem_ctx);
-
-	return seqnum;
-}
-
 /* get the domain sequence number, possibly re-fetching */
 
 static uint32 cached_sequence_number(struct winbindd_domain *domain)
@@ -127,7 +72,7 @@ static uint32 cached_sequence_number(struct winbindd_domain *domain)
 	}
 
  refetch:	
-	rec.seq_num = domain_sequence_number(domain);
+	rec.seq_num = domain->methods->sequence_number(domain);
 	rec.mod_time = t;
 
 	tdb_store_by_string(cache_tdb, keystr, &rec, sizeof(rec));
diff --git a/source3/nsswitch/winbindd_proto.h b/source3/nsswitch/winbindd_proto.h
index 893064b801..8f2010accb 100644
--- a/source3/nsswitch/winbindd_proto.h
+++ b/source3/nsswitch/winbindd_proto.h
@@ -133,7 +133,6 @@ enum winbindd_result winbindd_list_users(struct winbindd_cli_state *state);
 struct winbindd_domain *find_domain_from_name(char *domain_name);
 struct winbindd_domain *find_domain_from_sid(DOM_SID *sid);
 BOOL get_domain_info(void);
-void free_domain_info(void);
 BOOL lookup_domain_sid(char *domain_name, struct winbindd_domain *domain);
 BOOL winbindd_lookup_sid_by_name(struct winbindd_domain *domain, 
 				 const char *name, DOM_SID *sid, enum SID_NAME_USE *type);
diff --git a/source3/nsswitch/winbindd_rpc.c b/source3/nsswitch/winbindd_rpc.c
index c04bcdc954..9f1d46b40f 100644
--- a/source3/nsswitch/winbindd_rpc.c
+++ b/source3/nsswitch/winbindd_rpc.c
@@ -402,6 +402,60 @@ static NTSTATUS lookup_groupmem(struct winbindd_domain *domain,
         return result;
 }
 
+/* find the sequence number for a domain */
+static uint32 sequence_number(struct winbindd_domain *domain)
+{
+	TALLOC_CTX *mem_ctx;
+	CLI_POLICY_HND *hnd;
+	SAM_UNK_CTR ctr;
+	uint16 switch_value = 2;
+	NTSTATUS result;
+	uint32 seqnum = DOM_SEQUENCE_NONE;
+	POLICY_HND dom_pol;
+	BOOL got_dom_pol = False;
+	uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
+
+	if (!(mem_ctx = talloc_init()))
+		return DOM_SEQUENCE_NONE;
+
+	/* Get sam handle */
+
+	if (!(hnd = cm_get_sam_handle(domain->name)))
+		goto done;
+
+	/* Get domain handle */
+
+	result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol, 
+							des_access, &domain->sid, &dom_pol);
+
+	if (!NT_STATUS_IS_OK(result))
+		goto done;
+
+	got_dom_pol = True;
+
+	/* Query domain info */
+
+	result = cli_samr_query_dom_info(hnd->cli, mem_ctx, &dom_pol,
+							switch_value, &ctr);
+
+	if (NT_STATUS_IS_OK(result)) {
+		seqnum = ctr.info.inf2.seq_num;
+		DEBUG(10,("domain_sequence_number: for domain %s is %u\n", domain->name, (unsigned)seqnum ));
+	} else {
+		DEBUG(10,("domain_sequence_number: failed to get sequence number (%u) for domain %s\n",
+			(unsigned)seqnum, domain->name ));
+	}
+
+  done:
+
+	if (got_dom_pol)
+		cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
+
+	talloc_destroy(mem_ctx);
+
+	return seqnum;
+}
+
 
 /* the rpc backend methods are exposed via this structure */
 struct winbindd_methods msrpc_methods = {
@@ -411,6 +465,7 @@ struct winbindd_methods msrpc_methods = {
 	sid_to_name,
 	query_user,
 	lookup_usergroups,
-	lookup_groupmem
+	lookup_groupmem,
+	sequence_number
 };
 
diff --git a/source3/nsswitch/winbindd_util.c b/source3/nsswitch/winbindd_util.c
index 2ac090f8e5..fb041cc3ea 100644
--- a/source3/nsswitch/winbindd_util.c
+++ b/source3/nsswitch/winbindd_util.c
@@ -55,7 +55,7 @@ struct winbindd_domain *find_domain_from_name(char *domain_name)
 	/* Search through list */
 
 	for (tmp = domain_list; tmp != NULL; tmp = tmp->next) {
-		if (strcmp(domain_name, tmp->name) == 0)
+		if (strcasecmp(domain_name, tmp->name) == 0)
 			return tmp;
 	}
 
@@ -192,26 +192,6 @@ BOOL get_domain_info(void)
 	return rv;
 }
 
-/* Free global domain info */
-
-void free_domain_info(void)
-{
-	struct winbindd_domain *domain;
-
-	/* Free list of domains */
-
-	if (domain_list) {
-		struct winbindd_domain *next_domain;
-
-		domain = domain_list;
-
-		while(domain) {
-			next_domain = domain->next;
-			SAFE_FREE(domain);
-			domain = next_domain;
-		}
-	}
-}
 
 /* Connect to a domain controller using get_any_dc_name() to discover 
    the domain name and sid */