From 0234276af848343ba13332de9d3f6dee0a529c0c Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@samba.org>
Date: Thu, 3 Jul 2008 23:12:22 +0200
Subject: Convert idmap_cache to gencache (This used to be commit
 0bf0434f22b0ea46fda3ccc4dd612adbc88dd4f2)

---
 source3/winbindd/idmap.c | 54 +++++++++++++++++++++++++++++++-----------------
 1 file changed, 35 insertions(+), 19 deletions(-)

(limited to 'source3/winbindd/idmap.c')

diff --git a/source3/winbindd/idmap.c b/source3/winbindd/idmap.c
index 32fc3dc975..db17245b92 100644
--- a/source3/winbindd/idmap.c
+++ b/source3/winbindd/idmap.c
@@ -40,8 +40,6 @@ struct idmap_alloc_backend {
 	struct idmap_alloc_backend *prev, *next;
 };
 
-struct idmap_cache_ctx;
-
 struct idmap_alloc_context {
 	const char *params;
 	struct idmap_alloc_methods *methods;
@@ -49,7 +47,6 @@ struct idmap_alloc_context {
 };
 
 static TALLOC_CTX *idmap_ctx = NULL;
-static struct idmap_cache_ctx *idmap_cache;
 
 static struct idmap_backend *backends = NULL;
 static struct idmap_domain **idmap_domains = NULL;
@@ -246,7 +243,6 @@ NTSTATUS idmap_close(void)
 	/* this talloc_free call will fire the talloc destructors
 	 * that will free all active backends resources */
 	TALLOC_FREE(idmap_ctx);
-	idmap_cache = NULL;
 	idmap_domains = NULL;
 	backends = NULL;
 
@@ -269,10 +265,6 @@ NTSTATUS idmap_init_cache(void)
 		return NT_STATUS_NO_MEMORY;
 	}
 
-	if ( (idmap_cache = idmap_cache_init(idmap_ctx)) == NULL ) {
-		return NT_STATUS_UNSUCCESSFUL;
-	}
-
 	return NT_STATUS_OK;
 }
 
@@ -1316,15 +1308,28 @@ NTSTATUS idmap_unixids_to_sids(struct id_map **ids)
 
 	for (i = 0; ids[i]; i++) {
 
+		bool found, mapped, expired;
+
 		if ( ! ids[i]->sid) {
 			DEBUG(1, ("invalid null SID in id_map array"));
 			talloc_free(ctx);
 			return NT_STATUS_INVALID_PARAMETER;
 		}
 
-		ret = idmap_cache_map_id(idmap_cache, ids[i]);
+		ids[i]->status = ID_UNKNOWN;
 
-		if ( ! NT_STATUS_IS_OK(ret)) {
+		found = idmap_cache_map_id(&ids[i]->xid, ids[i]->sid,
+					   &mapped, &expired);
+
+		if (found) {
+			ids[i]->status = mapped ? ID_MAPPED : ID_UNMAPPED;
+		}
+
+		if (!found || (expired && IS_DOMAIN_ONLINE(our_domain))) {
+
+			/*
+			 * Need to ask the backend
+			 */
 
 			if ( ! bids) {
 				/* alloc space for ids to be resolved by
@@ -1376,7 +1381,7 @@ NTSTATUS idmap_unixids_to_sids(struct id_map **ids)
 		/* update the cache */
 		for (i = 0; i < bi; i++) {
 			if (bids[i]->status == ID_MAPPED) {
-				ret = idmap_cache_set(idmap_cache, bids[i]);
+				ret = idmap_cache_set(bids[i]);
 			} else if (bids[i]->status == ID_EXPIRED) {
 				/* the cache returned an expired entry and the
 				 * backend was not able to clear the situation
@@ -1391,8 +1396,7 @@ NTSTATUS idmap_unixids_to_sids(struct id_map **ids)
 				 * settle down. */
 				bids[i]->status = ID_UNMAPPED;
 			} else { /* unmapped */
-				ret = idmap_cache_set_negative_id(idmap_cache,
-								  bids[i]);
+				ret = idmap_cache_set_negative_id(bids[i]);
 			}
 			IDMAP_CHECK_RET(ret);
 		}
@@ -1434,15 +1438,28 @@ NTSTATUS idmap_sids_to_unixids(struct id_map **ids)
 
 	for (i = 0; ids[i]; i++) {
 
+		bool found, mapped, expired;
+
 		if ( ! ids[i]->sid) {
 			DEBUG(1, ("invalid null SID in id_map array\n"));
 			talloc_free(ctx);
 			return NT_STATUS_INVALID_PARAMETER;
 		}
 
-		ret = idmap_cache_map_sid(idmap_cache, ids[i]);
+		ids[i]->status = ID_UNKNOWN;
 
-		if ( ! NT_STATUS_IS_OK(ret)) {
+		found = idmap_cache_map_sid(ids[i]->sid, &ids[i]->xid,
+					    &mapped, &expired);
+
+		if (found) {
+			ids[i]->status = mapped ? ID_MAPPED : ID_UNMAPPED;
+		}
+
+		if (!found || (expired && IS_DOMAIN_ONLINE(our_domain))) {
+
+			/*
+			 * Need to ask the backends
+			 */
 
 			if ( ! bids) {
 				/* alloc space for ids to be resolved
@@ -1494,7 +1511,7 @@ NTSTATUS idmap_sids_to_unixids(struct id_map **ids)
 		/* update the cache */
 		for (i = 0; bids[i]; i++) {
 			if (bids[i]->status == ID_MAPPED) {
-				ret = idmap_cache_set(idmap_cache, bids[i]);
+				ret = idmap_cache_set(bids[i]);
 			} else if (bids[i]->status == ID_EXPIRED) {
 				/* the cache returned an expired entry and the
 				 * backend was not able to clear the situation
@@ -1509,8 +1526,7 @@ NTSTATUS idmap_sids_to_unixids(struct id_map **ids)
 				 * settle down. */
 				bids[i]->status = ID_UNMAPPED;
 			} else { /* unmapped */
-				ret = idmap_cache_set_negative_sid(idmap_cache,
-								   bids[i]);
+				ret = idmap_cache_set_negative_sid(bids[i]);
 			}
 			IDMAP_CHECK_RET(ret);
 		}
@@ -1550,7 +1566,7 @@ NTSTATUS idmap_set_mapping(const struct id_map *id)
 	IDMAP_CHECK_RET(ret);
 
 	/* set the mapping in the cache */
-	ret = idmap_cache_set(idmap_cache, id);
+	ret = idmap_cache_set(id);
 	IDMAP_CHECK_RET(ret);
 
 done:
-- 
cgit