1 files changed, 121 insertions, 0 deletions

diff --git a/include/net/tipc/tipc_bearer.h b/include/net/tipc/tipc_bearer.h
new file mode 100644
index 000000000000..098607cd4b78
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+++ b/include/net/tipc/tipc_bearer.h
@@ -0,0 +1,121 @@
+/*
+ * include/net/tipc/tipc_bearer.h: Include file for privileged access to TIPC bearers
+ * 
+ * Copyright (c) 2003-2006, Ericsson AB
+ * Copyright (c) 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.
+ */
+
+#ifndef _NET_TIPC_BEARER_H_
+#define _NET_TIPC_BEARER_H_
+
+#ifdef __KERNEL__
+
+#include <linux/tipc_config.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+
+/*
+ * Identifiers of supported TIPC media types
+ */
+
+#define TIPC_MEDIA_TYPE_ETH     1
+
+struct tipc_media_addr {
+        __u32  type;
+        union {
+                __u8   eth_addr[6];     /* Ethernet bearer */ 
+#if 0
+                /* Prototypes for other possible bearer types */
+
+                struct {
+                        __u16 sin_family;
+                        __u16 sin_port;
+                        struct {
+                                __u32 s_addr;
+                        } sin_addr;
+                        char pad[4];
+                } addr_in;              /* IP-based bearer */
+                __u16  sock_descr;      /* generic socket bearer */
+#endif
+        } dev_addr;
+};
+
+/**
+ * struct tipc_bearer - TIPC bearer info available to privileged users
+ * @usr_handle: pointer to additional user-defined information about bearer
+ * @mtu: max packet size bearer can support
+ * @blocked: non-zero if bearer is blocked
+ * @lock: spinlock for controlling access to bearer
+ * @addr: media-specific address associated with bearer
+ * @name: bearer name (format = media:interface)
+ * 
+ * Note: TIPC initializes "name" and "lock" fields; user is responsible for
+ * initialization all other fields when a bearer is enabled.
+ */
+
+struct tipc_bearer {
+        void *usr_handle;
+        u32 mtu;
+        int blocked;
+        spinlock_t lock;
+        struct tipc_media_addr addr;
+        char name[TIPC_MAX_BEARER_NAME];
+};
+
+
+int  tipc_register_media(u32 media_type,
+                         char *media_name, 
+                         int (*enable)(struct tipc_bearer *), 
+                         void (*disable)(struct tipc_bearer *), 
+                         int (*send_msg)(struct sk_buff *, 
+                                         struct tipc_bearer *,
+                                         struct tipc_media_addr *), 
+                         char *(*addr2str)(struct tipc_media_addr *a,
+                                           char *str_buf,
+                                           int str_size),
+                         struct tipc_media_addr *bcast_addr,
+                         const u32 bearer_priority,
+                         const u32 link_tolerance,  /* [ms] */
+                         const u32 send_window_limit); 
+
+void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr);
+
+int  tipc_block_bearer(const char *name);
+void tipc_continue(struct tipc_bearer *tb_ptr); 
+
+int tipc_enable_bearer(const char *bearer_name, u32 bcast_scope, u32 priority);
+int tipc_disable_bearer(const char *name);
+
+
+#endif
+
+#endif