/* * include/net/tipc/tipc_bearer.h: Include file for privileged access to TIPC bearers * * Copyright (c) 2003-2005, Ericsson Research Canada * Copyright (c) 2005, Wind River Systems * Copyright (c) 2005-2006, Ericsson AB * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * 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. * 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. * * 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.h> #include <linux/skbuff.h> #include <linux/spinlock.h> /** * 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