DP: invalidate all cached maps if a request for auto.master comes in

If the Data Provider receives a request for the auto.master map, it
passes on a flag to let the actual provider let know he should
invalidate the existing maps

3 files changed, 16 insertions, 0 deletions

diff --git a/src/providers/data_provider_be.c b/src/providers/data_provider_be.c
index da319ffa6..5208b48cb 100644
--- a/src/providers/data_provider_be.c
+++ b/src/providers/data_provider_be.c
@@ -1491,6 +1491,13 @@ static int be_autofs_handler(DBusMessage *message, struct sbus_connection *conn)
         goto done;
     }
 
+    /* If a request for auto.master comes in, the automounter deamon
+     * has been reloaded. Expire all autofs maps to force reload
+     */
+    if (strcmp(be_autofs_req->mapname, "auto.master") == 0) {
+        be_autofs_req->invalidate = true;
+    }
+
     be_req->req_data = be_autofs_req;
 
     if (!be_cli->bectx->bet_info[BET_AUTOFS].bet_ops) {
diff --git a/src/providers/dp_backend.h b/src/providers/dp_backend.h
index 357d58910..58a9b7490 100644
--- a/src/providers/dp_backend.h
+++ b/src/providers/dp_backend.h
@@ -169,6 +169,7 @@ struct be_sudo_req {
 
 struct be_autofs_req {
     char *mapname;
+    bool invalidate;
 };
 
 struct be_subdom_req {
diff --git a/src/providers/ldap/sdap_autofs.c b/src/providers/ldap/sdap_autofs.c
index 5e3e3320c..7e6f3ecf7 100644
--- a/src/providers/ldap/sdap_autofs.c
+++ b/src/providers/ldap/sdap_autofs.c
@@ -97,6 +97,14 @@ void sdap_autofs_handler(struct be_req *be_req)
     DEBUG(SSSDBG_FUNC_DATA, ("Requested refresh for: %s\n",
           autofs_req->mapname ? autofs_req->mapname : "<ALL>\n"));
 
+    if (autofs_req->invalidate) {
+        ret = sysdb_invalidate_autofs_maps(id_ctx->be->sysdb);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("Could not invalidate autofs maps, "
+                  "backend might return stale entries\n"));
+        }
+    }
+
     req = sdap_autofs_get_map_send(be_req, be_req->be_ctx->ev,
                                    id_ctx, autofs_req->mapname);
     if (!req) {