File bug-964183_pacemaker-crmd-remote-proxy-disconnect.patch of Package pacemaker.1630

commit 356c8d65cd2361929555092363dd10fc29d43d46
Author: Gao,Yan <ygao@suse.com>
Date:   Tue Feb 2 11:50:02 2016 +0100

    Fix: crmd: Disconnect the relevant remote proxies as well when disconnecting a remote node
    
    Previously, the relevant remote proxies would still exist even if a
    remote node was already disconnected. So whenever there was an event, it
    would still trigger remote_proxy_dispatch_internal(). Especially if the
    remote node was unexpectedly disconnected, lrmd_tls_send() would fail to
    relay the event and call lrmd_tls_disconnect() again. It actually always
    occurred when reconnecting to the remote node, which basically made
    reconnecting impossible.

diff --git a/crmd/lrm_state.c b/crmd/lrm_state.c
index 6d3cd6a..0f50fef 100644
--- a/crmd/lrm_state.c
+++ b/crmd/lrm_state.c
@@ -287,6 +287,45 @@ lrm_state_get_list(void)
     return g_hash_table_get_values(lrm_state_table);
 }
 
+static remote_proxy_t *
+find_connected_proxy_by_node(const char * node_name)
+{
+    GHashTableIter gIter;
+    remote_proxy_t *proxy = NULL;
+
+    CRM_CHECK(proxy_table != NULL, return NULL);
+
+    g_hash_table_iter_init(&gIter, proxy_table);
+
+    while (g_hash_table_iter_next(&gIter, NULL, (gpointer *) &proxy)) {
+        if (proxy->source
+            && safe_str_eq(node_name, proxy->node_name)) {
+            return proxy;
+        }
+    }
+
+    return NULL;
+}
+
+static void
+remote_proxy_disconnect_by_node(const char * node_name)
+{
+    remote_proxy_t *proxy = NULL;
+
+    CRM_CHECK(proxy_table != NULL, return);
+
+    while ((proxy = find_connected_proxy_by_node(node_name)) != NULL) {
+        /* mainloop_del_ipc_client() eventually calls remote_proxy_disconnected()
+         * , which removes the entry from proxy_table.
+         * Do not do this in a g_hash_table_iter_next() loop. */
+        if (proxy->source) {
+            mainloop_del_ipc_client(proxy->source);
+        }
+    }
+
+    return;
+}
+
 void
 lrm_state_disconnect(lrm_state_t * lrm_state)
 {
@@ -296,6 +335,9 @@ lrm_state_disconnect(lrm_state_t * lrm_state)
         return;
     }
     crm_trace("Disconnecting %s", lrm_state->node_name);
+
+    remote_proxy_disconnect_by_node(lrm_state->node_name);
+
     ((lrmd_t *) lrm_state->conn)->cmds->disconnect(lrm_state->conn);
 
     if (is_not_set(fsa_input_register, R_SHUTDOWN)) {