mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 23:21:31 +00:00
c422f1bdc3
Streamlines the logic that prevents an application from binding a reserved TIPC name type to a port by moving the check to the code that handles a socket bind() operation. This allows internal TIPC subsystems to bind a reserved name without having to set an atomic flag to gain permission to use such a name. (This simplification is now possible due to the elimination of support for TIPC's native API.) Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
107 lines
4.1 KiB
C
107 lines
4.1 KiB
C
/*
|
|
* net/tipc/name_table.h: Include file for TIPC name table code
|
|
*
|
|
* Copyright (c) 2000-2006, Ericsson AB
|
|
* Copyright (c) 2004-2005, 2010-2011, 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 _TIPC_NAME_TABLE_H
|
|
#define _TIPC_NAME_TABLE_H
|
|
|
|
#include "node_subscr.h"
|
|
|
|
struct tipc_subscription;
|
|
struct tipc_port_list;
|
|
|
|
/*
|
|
* TIPC name types reserved for internal TIPC use (both current and planned)
|
|
*/
|
|
|
|
#define TIPC_ZM_SRV 3 /* zone master service name type */
|
|
|
|
|
|
/**
|
|
* struct publication - info about a published (name or) name sequence
|
|
* @type: name sequence type
|
|
* @lower: name sequence lower bound
|
|
* @upper: name sequence upper bound
|
|
* @scope: scope of publication
|
|
* @node: network address of publishing port's node
|
|
* @ref: publishing port
|
|
* @key: publication key
|
|
* @subscr: subscription to "node down" event (for off-node publications only)
|
|
* @local_list: adjacent entries in list of publications made by this node
|
|
* @pport_list: adjacent entries in list of publications made by this port
|
|
* @node_list: adjacent matching name seq publications with >= node scope
|
|
* @cluster_list: adjacent matching name seq publications with >= cluster scope
|
|
* @zone_list: adjacent matching name seq publications with >= zone scope
|
|
*
|
|
* Note that the node list, cluster list, and zone list are circular lists.
|
|
*/
|
|
|
|
struct publication {
|
|
u32 type;
|
|
u32 lower;
|
|
u32 upper;
|
|
u32 scope;
|
|
u32 node;
|
|
u32 ref;
|
|
u32 key;
|
|
struct tipc_node_subscr subscr;
|
|
struct list_head local_list;
|
|
struct list_head pport_list;
|
|
struct list_head node_list;
|
|
struct list_head cluster_list;
|
|
struct list_head zone_list;
|
|
};
|
|
|
|
|
|
extern rwlock_t tipc_nametbl_lock;
|
|
|
|
struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space);
|
|
u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node);
|
|
int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
|
|
struct tipc_port_list *dports);
|
|
struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
|
|
u32 scope, u32 port_ref, u32 key);
|
|
int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
|
|
struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
|
|
u32 scope, u32 node, u32 ref, u32 key);
|
|
struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
|
|
u32 node, u32 ref, u32 key);
|
|
void tipc_nametbl_subscribe(struct tipc_subscription *s);
|
|
void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
|
|
int tipc_nametbl_init(void);
|
|
void tipc_nametbl_stop(void);
|
|
|
|
#endif
|