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51a8e4dee7
Eliminates routines and data structures that were intended to allow TIPC to route messages to other clusters. Currently, TIPC supports only networks consisting of a single cluster within a single zone, so this code is unnecessary. Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
879 lines
20 KiB
C
879 lines
20 KiB
C
/*
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* net/tipc/msg.h: Include file for TIPC message header routines
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*
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* Copyright (c) 2000-2007, Ericsson AB
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* Copyright (c) 2005-2008, Wind River Systems
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TIPC_MSG_H
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#define _TIPC_MSG_H
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#include "bearer.h"
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#define TIPC_VERSION 2
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/*
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* TIPC user data message header format, version 2:
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*
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*
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* 1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w0:|vers | user |hdr sz |n|d|s|-| message size |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w1:|mstyp| error |rer cnt|lsc|opt p| broadcast ack no |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w2:| link level ack no | broadcast/link level seq no |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w3:| previous node |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w4:| originating port |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w5:| destination port |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w6:| originating node |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w7:| destination node |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w8:| name type / transport sequence number |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* w9:| name instance/multicast lower bound |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* wA:| multicast upper bound |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* / /
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* \ options \
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* / /
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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*/
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#define TIPC_CONN_MSG 0
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#define TIPC_MCAST_MSG 1
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#define TIPC_NAMED_MSG 2
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#define TIPC_DIRECT_MSG 3
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#define SHORT_H_SIZE 24 /* Connected, in-cluster messages */
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#define DIR_MSG_H_SIZE 32 /* Directly addressed messages */
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#define LONG_H_SIZE 40 /* Named messages */
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#define MCAST_H_SIZE 44 /* Multicast messages */
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#define INT_H_SIZE 40 /* Internal messages */
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#define MIN_H_SIZE 24 /* Smallest legal TIPC header size */
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#define MAX_H_SIZE 60 /* Largest possible TIPC header size */
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#define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE)
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struct tipc_msg {
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__be32 hdr[15];
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};
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static inline u32 msg_word(struct tipc_msg *m, u32 pos)
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{
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return ntohl(m->hdr[pos]);
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}
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static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val)
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{
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m->hdr[w] = htonl(val);
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}
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static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask)
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{
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return (msg_word(m, w) >> pos) & mask;
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}
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static inline void msg_set_bits(struct tipc_msg *m, u32 w,
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u32 pos, u32 mask, u32 val)
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{
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val = (val & mask) << pos;
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mask = mask << pos;
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m->hdr[w] &= ~htonl(mask);
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m->hdr[w] |= htonl(val);
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}
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static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b)
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{
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u32 temp = msg->hdr[a];
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msg->hdr[a] = msg->hdr[b];
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msg->hdr[b] = temp;
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}
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/*
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* Word 0
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*/
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static inline u32 msg_version(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 29, 7);
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}
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static inline void msg_set_version(struct tipc_msg *m)
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{
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msg_set_bits(m, 0, 29, 7, TIPC_VERSION);
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}
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static inline u32 msg_user(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 25, 0xf);
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}
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static inline u32 msg_isdata(struct tipc_msg *m)
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{
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return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE;
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}
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static inline void msg_set_user(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 0, 25, 0xf, n);
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}
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static inline u32 msg_importance(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 25, 0xf);
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}
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static inline void msg_set_importance(struct tipc_msg *m, u32 i)
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{
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msg_set_user(m, i);
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}
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static inline u32 msg_hdr_sz(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 21, 0xf) << 2;
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}
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static inline void msg_set_hdr_sz(struct tipc_msg *m,u32 n)
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{
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msg_set_bits(m, 0, 21, 0xf, n>>2);
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}
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static inline u32 msg_size(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 0, 0x1ffff);
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}
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static inline u32 msg_data_sz(struct tipc_msg *m)
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{
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return msg_size(m) - msg_hdr_sz(m);
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}
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static inline int msg_non_seq(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 20, 1);
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}
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static inline void msg_set_non_seq(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 0, 20, 1, n);
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}
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static inline int msg_dest_droppable(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 19, 1);
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}
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static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d)
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{
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msg_set_bits(m, 0, 19, 1, d);
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}
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static inline int msg_src_droppable(struct tipc_msg *m)
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{
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return msg_bits(m, 0, 18, 1);
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}
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static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d)
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{
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msg_set_bits(m, 0, 18, 1, d);
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}
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static inline void msg_set_size(struct tipc_msg *m, u32 sz)
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{
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m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz);
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}
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/*
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* Word 1
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*/
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static inline u32 msg_type(struct tipc_msg *m)
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{
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return msg_bits(m, 1, 29, 0x7);
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}
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static inline void msg_set_type(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 1, 29, 0x7, n);
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}
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static inline u32 msg_named(struct tipc_msg *m)
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{
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return msg_type(m) == TIPC_NAMED_MSG;
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}
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static inline u32 msg_mcast(struct tipc_msg *m)
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{
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return msg_type(m) == TIPC_MCAST_MSG;
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}
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static inline u32 msg_connected(struct tipc_msg *m)
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{
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return msg_type(m) == TIPC_CONN_MSG;
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}
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static inline u32 msg_errcode(struct tipc_msg *m)
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{
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return msg_bits(m, 1, 25, 0xf);
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}
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static inline void msg_set_errcode(struct tipc_msg *m, u32 err)
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{
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msg_set_bits(m, 1, 25, 0xf, err);
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}
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static inline u32 msg_reroute_cnt(struct tipc_msg *m)
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{
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return msg_bits(m, 1, 21, 0xf);
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}
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static inline void msg_incr_reroute_cnt(struct tipc_msg *m)
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{
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msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1);
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}
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static inline void msg_reset_reroute_cnt(struct tipc_msg *m)
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{
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msg_set_bits(m, 1, 21, 0xf, 0);
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}
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static inline u32 msg_lookup_scope(struct tipc_msg *m)
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{
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return msg_bits(m, 1, 19, 0x3);
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}
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static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 1, 19, 0x3, n);
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}
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static inline u32 msg_bcast_ack(struct tipc_msg *m)
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{
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return msg_bits(m, 1, 0, 0xffff);
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}
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static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 1, 0, 0xffff, n);
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}
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/*
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* Word 2
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*/
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static inline u32 msg_ack(struct tipc_msg *m)
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{
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return msg_bits(m, 2, 16, 0xffff);
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}
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static inline void msg_set_ack(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 2, 16, 0xffff, n);
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}
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static inline u32 msg_seqno(struct tipc_msg *m)
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{
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return msg_bits(m, 2, 0, 0xffff);
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}
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static inline void msg_set_seqno(struct tipc_msg *m, u32 n)
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{
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msg_set_bits(m, 2, 0, 0xffff, n);
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}
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/*
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* TIPC may utilize the "link ack #" and "link seq #" fields of a short
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* message header to hold the destination node for the message, since the
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* normal "dest node" field isn't present. This cache is only referenced
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* when required, so populating the cache of a longer message header is
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* harmless (as long as the header has the two link sequence fields present).
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*
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* Note: Host byte order is OK here, since the info never goes off-card.
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*/
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static inline u32 msg_destnode_cache(struct tipc_msg *m)
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{
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return m->hdr[2];
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}
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static inline void msg_set_destnode_cache(struct tipc_msg *m, u32 dnode)
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{
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m->hdr[2] = dnode;
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}
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/*
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* Words 3-10
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*/
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static inline u32 msg_prevnode(struct tipc_msg *m)
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{
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return msg_word(m, 3);
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}
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static inline void msg_set_prevnode(struct tipc_msg *m, u32 a)
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{
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msg_set_word(m, 3, a);
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}
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static inline u32 msg_origport(struct tipc_msg *m)
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{
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return msg_word(m, 4);
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}
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static inline void msg_set_origport(struct tipc_msg *m, u32 p)
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{
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msg_set_word(m, 4, p);
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}
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static inline u32 msg_destport(struct tipc_msg *m)
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{
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return msg_word(m, 5);
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}
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static inline void msg_set_destport(struct tipc_msg *m, u32 p)
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{
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msg_set_word(m, 5, p);
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}
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static inline u32 msg_mc_netid(struct tipc_msg *m)
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{
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return msg_word(m, 5);
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}
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static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p)
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{
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msg_set_word(m, 5, p);
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}
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static inline int msg_short(struct tipc_msg *m)
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{
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return msg_hdr_sz(m) == 24;
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}
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static inline u32 msg_orignode(struct tipc_msg *m)
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{
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if (likely(msg_short(m)))
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return msg_prevnode(m);
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return msg_word(m, 6);
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}
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static inline void msg_set_orignode(struct tipc_msg *m, u32 a)
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{
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msg_set_word(m, 6, a);
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}
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static inline u32 msg_destnode(struct tipc_msg *m)
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{
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return msg_word(m, 7);
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}
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static inline void msg_set_destnode(struct tipc_msg *m, u32 a)
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{
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msg_set_word(m, 7, a);
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}
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static inline int msg_is_dest(struct tipc_msg *m, u32 d)
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{
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return msg_short(m) || (msg_destnode(m) == d);
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}
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static inline u32 msg_routed(struct tipc_msg *m)
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{
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if (likely(msg_short(m)))
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return 0;
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return(msg_destnode(m) ^ msg_orignode(m)) >> 11;
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}
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static inline u32 msg_nametype(struct tipc_msg *m)
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{
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return msg_word(m, 8);
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}
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static inline void msg_set_nametype(struct tipc_msg *m, u32 n)
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{
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msg_set_word(m, 8, n);
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}
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static inline u32 msg_transp_seqno(struct tipc_msg *m)
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{
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return msg_word(m, 8);
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}
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static inline void msg_set_timestamp(struct tipc_msg *m, u32 n)
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{
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msg_set_word(m, 8, n);
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}
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static inline u32 msg_timestamp(struct tipc_msg *m)
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{
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return msg_word(m, 8);
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}
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static inline void msg_set_transp_seqno(struct tipc_msg *m, u32 n)
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{
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msg_set_word(m, 8, n);
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}
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static inline u32 msg_nameinst(struct tipc_msg *m)
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{
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return msg_word(m, 9);
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}
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static inline u32 msg_namelower(struct tipc_msg *m)
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{
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return msg_nameinst(m);
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}
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static inline void msg_set_namelower(struct tipc_msg *m, u32 n)
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{
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msg_set_word(m, 9, n);
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}
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static inline void msg_set_nameinst(struct tipc_msg *m, u32 n)
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{
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msg_set_namelower(m, n);
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}
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static inline u32 msg_nameupper(struct tipc_msg *m)
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{
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return msg_word(m, 10);
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}
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static inline void msg_set_nameupper(struct tipc_msg *m, u32 n)
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{
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msg_set_word(m, 10, n);
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}
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static inline unchar *msg_data(struct tipc_msg *m)
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{
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return ((unchar *)m) + msg_hdr_sz(m);
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}
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static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
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{
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return (struct tipc_msg *)msg_data(m);
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}
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/*
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TIPC internal message header format, version 2
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1 0 9 8 7 6 5 4|3 2 1 0 9 8 7 6|5 4 3 2 1 0 9 8|7 6 5 4 3 2 1 0
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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w0:|vers |msg usr|hdr sz |n|resrv| packet size |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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w1:|m typ| sequence gap | broadcast ack no |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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w2:| link level ack no/bc_gap_from | seq no / bcast_gap_to |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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w3:| previous node |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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w4:| next sent broadcast/fragm no | next sent pkt/ fragm msg no |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
w5:| session no |rsv=0|r|berid|link prio|netpl|p|
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
w6:| originating node |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
w7:| destination node |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
w8:| transport sequence number |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
w9:| msg count / bcast tag | link tolerance |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
\ \
|
|
/ User Specific Data /
|
|
\ \
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
|
|
NB: CONN_MANAGER use data message format. LINK_CONFIG has own format.
|
|
*/
|
|
|
|
/*
|
|
* Internal users
|
|
*/
|
|
|
|
#define BCAST_PROTOCOL 5
|
|
#define MSG_BUNDLER 6
|
|
#define LINK_PROTOCOL 7
|
|
#define CONN_MANAGER 8
|
|
#define ROUTE_DISTRIBUTOR 9 /* obsoleted */
|
|
#define CHANGEOVER_PROTOCOL 10
|
|
#define NAME_DISTRIBUTOR 11
|
|
#define MSG_FRAGMENTER 12
|
|
#define LINK_CONFIG 13
|
|
#define DSC_H_SIZE 40
|
|
|
|
/*
|
|
* Connection management protocol messages
|
|
*/
|
|
|
|
#define CONN_PROBE 0
|
|
#define CONN_PROBE_REPLY 1
|
|
#define CONN_ACK 2
|
|
|
|
/*
|
|
* Name distributor messages
|
|
*/
|
|
|
|
#define PUBLICATION 0
|
|
#define WITHDRAWAL 1
|
|
|
|
|
|
/*
|
|
* Word 1
|
|
*/
|
|
|
|
static inline u32 msg_seq_gap(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 1, 16, 0x1fff);
|
|
}
|
|
|
|
static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 1, 16, 0x1fff, n);
|
|
}
|
|
|
|
static inline u32 msg_req_links(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 1, 16, 0xfff);
|
|
}
|
|
|
|
static inline void msg_set_req_links(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 1, 16, 0xfff, n);
|
|
}
|
|
|
|
|
|
/*
|
|
* Word 2
|
|
*/
|
|
|
|
static inline u32 msg_dest_domain(struct tipc_msg *m)
|
|
{
|
|
return msg_word(m, 2);
|
|
}
|
|
|
|
static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_word(m, 2, n);
|
|
}
|
|
|
|
static inline u32 msg_bcgap_after(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 2, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 2, 16, 0xffff, n);
|
|
}
|
|
|
|
static inline u32 msg_bcgap_to(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 2, 0, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 2, 0, 0xffff, n);
|
|
}
|
|
|
|
|
|
/*
|
|
* Word 4
|
|
*/
|
|
|
|
static inline u32 msg_last_bcast(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 4, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 4, 16, 0xffff, n);
|
|
}
|
|
|
|
|
|
static inline u32 msg_fragm_no(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 4, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 4, 16, 0xffff, n);
|
|
}
|
|
|
|
|
|
static inline u32 msg_next_sent(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 4, 0, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_next_sent(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 4, 0, 0xffff, n);
|
|
}
|
|
|
|
|
|
static inline u32 msg_long_msgno(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 4, 0, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 4, 0, 0xffff, n);
|
|
}
|
|
|
|
static inline u32 msg_bc_netid(struct tipc_msg *m)
|
|
{
|
|
return msg_word(m, 4);
|
|
}
|
|
|
|
static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id)
|
|
{
|
|
msg_set_word(m, 4, id);
|
|
}
|
|
|
|
static inline u32 msg_link_selector(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 4, 0, 1);
|
|
}
|
|
|
|
static inline void msg_set_link_selector(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 4, 0, 1, (n & 1));
|
|
}
|
|
|
|
/*
|
|
* Word 5
|
|
*/
|
|
|
|
static inline u32 msg_session(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_session(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 5, 16, 0xffff, n);
|
|
}
|
|
|
|
static inline u32 msg_probe(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 0, 1);
|
|
}
|
|
|
|
static inline void msg_set_probe(struct tipc_msg *m, u32 val)
|
|
{
|
|
msg_set_bits(m, 5, 0, 1, (val & 1));
|
|
}
|
|
|
|
static inline char msg_net_plane(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 1, 7) + 'A';
|
|
}
|
|
|
|
static inline void msg_set_net_plane(struct tipc_msg *m, char n)
|
|
{
|
|
msg_set_bits(m, 5, 1, 7, (n - 'A'));
|
|
}
|
|
|
|
static inline u32 msg_linkprio(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 4, 0x1f);
|
|
}
|
|
|
|
static inline void msg_set_linkprio(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 5, 4, 0x1f, n);
|
|
}
|
|
|
|
static inline u32 msg_bearer_id(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 9, 0x7);
|
|
}
|
|
|
|
static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 5, 9, 0x7, n);
|
|
}
|
|
|
|
static inline u32 msg_redundant_link(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 5, 12, 0x1);
|
|
}
|
|
|
|
static inline void msg_set_redundant_link(struct tipc_msg *m)
|
|
{
|
|
msg_set_bits(m, 5, 12, 0x1, 1);
|
|
}
|
|
|
|
static inline void msg_clear_redundant_link(struct tipc_msg *m)
|
|
{
|
|
msg_set_bits(m, 5, 12, 0x1, 0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Word 9
|
|
*/
|
|
|
|
static inline u32 msg_msgcnt(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 9, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 9, 16, 0xffff, n);
|
|
}
|
|
|
|
static inline u32 msg_bcast_tag(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 9, 16, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 9, 16, 0xffff, n);
|
|
}
|
|
|
|
static inline u32 msg_max_pkt(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 9, 16, 0xffff) * 4;
|
|
}
|
|
|
|
static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 9, 16, 0xffff, (n / 4));
|
|
}
|
|
|
|
static inline u32 msg_link_tolerance(struct tipc_msg *m)
|
|
{
|
|
return msg_bits(m, 9, 0, 0xffff);
|
|
}
|
|
|
|
static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
|
|
{
|
|
msg_set_bits(m, 9, 0, 0xffff, n);
|
|
}
|
|
|
|
/*
|
|
* Routing table message data
|
|
*/
|
|
|
|
|
|
static inline u32 msg_remote_node(struct tipc_msg *m)
|
|
{
|
|
return msg_word(m, msg_hdr_sz(m)/4);
|
|
}
|
|
|
|
static inline void msg_set_remote_node(struct tipc_msg *m, u32 a)
|
|
{
|
|
msg_set_word(m, msg_hdr_sz(m)/4, a);
|
|
}
|
|
|
|
/*
|
|
* Segmentation message types
|
|
*/
|
|
|
|
#define FIRST_FRAGMENT 0
|
|
#define FRAGMENT 1
|
|
#define LAST_FRAGMENT 2
|
|
|
|
/*
|
|
* Link management protocol message types
|
|
*/
|
|
|
|
#define STATE_MSG 0
|
|
#define RESET_MSG 1
|
|
#define ACTIVATE_MSG 2
|
|
|
|
/*
|
|
* Changeover tunnel message types
|
|
*/
|
|
#define DUPLICATE_MSG 0
|
|
#define ORIGINAL_MSG 1
|
|
|
|
/*
|
|
* Routing table message types
|
|
*/
|
|
#define EXT_ROUTING_TABLE 0
|
|
#define LOCAL_ROUTING_TABLE 1 /* obsoleted */
|
|
#define SLAVE_ROUTING_TABLE 2
|
|
#define ROUTE_ADDITION 3
|
|
#define ROUTE_REMOVAL 4
|
|
|
|
/*
|
|
* Config protocol message types
|
|
*/
|
|
|
|
#define DSC_REQ_MSG 0
|
|
#define DSC_RESP_MSG 1
|
|
|
|
u32 tipc_msg_tot_importance(struct tipc_msg *m);
|
|
void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
|
|
u32 hsize, u32 destnode);
|
|
int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect);
|
|
int tipc_msg_build(struct tipc_msg *hdr,
|
|
struct iovec const *msg_sect, u32 num_sect,
|
|
int max_size, int usrmem, struct sk_buff** buf);
|
|
|
|
static inline void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
|
|
{
|
|
memcpy(&((int *)m)[5], a, sizeof(*a));
|
|
}
|
|
|
|
static inline void msg_get_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
|
|
{
|
|
memcpy(a, &((int*)m)[5], sizeof(*a));
|
|
}
|
|
|
|
#endif
|