1 files changed, 94 insertions, 0 deletions

diff --git a/net/tipc/addr.c b/net/tipc/addr.c
new file mode 100644
index 000000000000..0be25e175b93
--- /dev/null
+++ b/net/tipc/addr.c
@@ -0,0 +1,94 @@
+/*
+ * net/tipc/addr.c: TIPC address utility routines
+ *     
+ * Copyright (c) 2000-2006, Ericsson AB
+ * Copyright (c) 2004-2005, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "core.h"
+#include "dbg.h"
+#include "addr.h"
+#include "zone.h"
+#include "cluster.h"
+#include "net.h"
+
+u32 tipc_get_addr(void)
+{
+        return tipc_own_addr;
+}
+
+/**
+ * tipc_addr_domain_valid - validates a network domain address
+ * 
+ * Accepts <Z.C.N>, <Z.C.0>, <Z.0.0>, and <0.0.0>, 
+ * where Z, C, and N are non-zero and do not exceed the configured limits.
+ * 
+ * Returns 1 if domain address is valid, otherwise 0
+ */
+
+int tipc_addr_domain_valid(u32 addr)
+{
+        u32 n = tipc_node(addr);
+        u32 c = tipc_cluster(addr);
+        u32 z = tipc_zone(addr);
+        u32 max_nodes = tipc_max_nodes;
+
+        if (is_slave(addr))
+                max_nodes = LOWEST_SLAVE + tipc_max_slaves;
+        if (n > max_nodes)
+                return 0;
+        if (c > tipc_max_clusters)
+                return 0;
+        if (z > tipc_max_zones)
+                return 0;
+
+        if (n && (!z || !c))
+                return 0;
+        if (c && !z)
+                return 0;
+        return 1;
+}
+
+/**
+ * tipc_addr_node_valid - validates a proposed network address for this node
+ * 
+ * Accepts <Z.C.N>, where Z, C, and N are non-zero and do not exceed 
+ * the configured limits.
+ * 
+ * Returns 1 if address can be used, otherwise 0
+ */
+
+int tipc_addr_node_valid(u32 addr)
+{
+        return (tipc_addr_domain_valid(addr) && tipc_node(addr));
+}
+