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-rw-r--r--net/rxrpc/net_ns.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/net/rxrpc/net_ns.c b/net/rxrpc/net_ns.c
new file mode 100644
index 000000000000..26449a6bb076
--- /dev/null
+++ b/net/rxrpc/net_ns.c
@@ -0,0 +1,85 @@
+/* rxrpc network namespace handling.
+ *
+ * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/proc_fs.h>
+#include "ar-internal.h"
+
+unsigned int rxrpc_net_id;
+
+/*
+ * Initialise a per-network namespace record.
+ */
+static __net_init int rxrpc_init_net(struct net *net)
+{
+ struct rxrpc_net *rxnet = rxrpc_net(net);
+ int ret;
+
+ get_random_bytes(&rxnet->epoch, sizeof(rxnet->epoch));
+ rxnet->epoch |= RXRPC_RANDOM_EPOCH;
+
+ INIT_LIST_HEAD(&rxnet->calls);
+ rwlock_init(&rxnet->call_lock);
+
+ INIT_LIST_HEAD(&rxnet->conn_proc_list);
+ INIT_LIST_HEAD(&rxnet->service_conns);
+ rwlock_init(&rxnet->conn_lock);
+ INIT_DELAYED_WORK(&rxnet->service_conn_reaper,
+ rxrpc_service_connection_reaper);
+
+ rxnet->nr_client_conns = 0;
+ rxnet->nr_active_client_conns = 0;
+ rxnet->kill_all_client_conns = false;
+ spin_lock_init(&rxnet->client_conn_cache_lock);
+ spin_lock_init(&rxnet->client_conn_discard_lock);
+ INIT_LIST_HEAD(&rxnet->waiting_client_conns);
+ INIT_LIST_HEAD(&rxnet->active_client_conns);
+ INIT_LIST_HEAD(&rxnet->idle_client_conns);
+ INIT_DELAYED_WORK(&rxnet->client_conn_reaper,
+ rxrpc_discard_expired_client_conns);
+
+ INIT_LIST_HEAD(&rxnet->local_endpoints);
+ mutex_init(&rxnet->local_mutex);
+ hash_init(rxnet->peer_hash);
+ spin_lock_init(&rxnet->peer_hash_lock);
+
+ ret = -ENOMEM;
+ rxnet->proc_net = proc_net_mkdir(net, "rxrpc", net->proc_net);
+ if (!rxnet->proc_net)
+ goto err_proc;
+
+ proc_create("calls", 0444, rxnet->proc_net, &rxrpc_call_seq_fops);
+ proc_create("conns", 0444, rxnet->proc_net, &rxrpc_connection_seq_fops);
+ return 0;
+
+ proc_remove(rxnet->proc_net);
+err_proc:
+ return ret;
+}
+
+/*
+ * Clean up a per-network namespace record.
+ */
+static __net_exit void rxrpc_exit_net(struct net *net)
+{
+ struct rxrpc_net *rxnet = rxrpc_net(net);
+
+ rxrpc_destroy_all_calls(rxnet);
+ rxrpc_destroy_all_connections(rxnet);
+ rxrpc_destroy_all_locals(rxnet);
+ proc_remove(rxnet->proc_net);
+}
+
+struct pernet_operations rxrpc_net_ops = {
+ .init = rxrpc_init_net,
+ .exit = rxrpc_exit_net,
+ .id = &rxrpc_net_id,
+ .size = sizeof(struct rxrpc_net),
+};