Release 4.11 net/tipc/msg.h

Directory: net/tipc
/*
 * net/tipc/msg.h: Include file for TIPC message header routines
 *
 * Copyright (c) 2000-2007, 2014-2015 Ericsson AB
 * Copyright (c) 2005-2008, 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_MSG_H

#define _TIPC_MSG_H

#include <linux/tipc.h>
#include "core.h"

/*
 * Constants and routines used to read and write TIPC payload message headers
 *
 * Note: Some items are also used with TIPC internal message headers
 */

#define TIPC_VERSION              2
struct plist;

/*
 * Payload message users are defined in TIPC's public API:
 * - TIPC_LOW_IMPORTANCE
 * - TIPC_MEDIUM_IMPORTANCE
 * - TIPC_HIGH_IMPORTANCE
 * - TIPC_CRITICAL_IMPORTANCE
 */

#define TIPC_SYSTEM_IMPORTANCE	4


/*
 * Payload message types
 */

#define TIPC_CONN_MSG		0

#define TIPC_MCAST_MSG		1

#define TIPC_NAMED_MSG		2

#define TIPC_DIRECT_MSG		3

/*
 * Internal message users
 */

#define  BCAST_PROTOCOL       5

#define  MSG_BUNDLER          6

#define  LINK_PROTOCOL        7

#define  CONN_MANAGER         8

#define  TUNNEL_PROTOCOL      10

#define  NAME_DISTRIBUTOR     11

#define  MSG_FRAGMENTER       12

#define  LINK_CONFIG          13

#define  SOCK_WAKEUP          14       
/* pseudo user */

/*
 * Message header sizes
 */

#define SHORT_H_SIZE              24	
/* In-cluster basic payload message */

#define BASIC_H_SIZE              32	
/* Basic payload message */

#define NAMED_H_SIZE              40	
/* Named payload message */

#define MCAST_H_SIZE              44	
/* Multicast payload message */

#define INT_H_SIZE                40	
/* Internal messages */

#define MIN_H_SIZE                24	
/* Smallest legal TIPC header size */

#define MAX_H_SIZE                60	
/* Largest possible TIPC header size */


#define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE)


#define TIPC_MEDIA_INFO_OFFSET	5


struct tipc_skb_cb {
	
u32 bytes_read;
	
struct sk_buff *tail;
	
bool validated;
	
u16 chain_imp;
	
u16 ackers;
};


#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))


struct tipc_msg {
	
__be32 hdr[15];
};



static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
{
	return (struct tipc_msg *)skb->data;
}

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static inline u32 msg_word(struct tipc_msg *m, u32 pos)
{
	return ntohl(m->hdr[pos]);
}

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static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val)
{
	m->hdr[w] = htonl(val);
}

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static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask)
{
	return (msg_word(m, w) >> pos) & mask;
}

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static inline void msg_set_bits(struct tipc_msg *m, u32 w,
				u32 pos, u32 mask, u32 val)
{
	val = (val & mask) << pos;
	mask = mask << pos;
	m->hdr[w] &= ~htonl(mask);
	m->hdr[w] |= htonl(val);
}

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static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b)
{
	u32 temp = msg->hdr[a];

	msg->hdr[a] = msg->hdr[b];
	msg->hdr[b] = temp;
}

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/*
 * Word 0
 */


static inline u32 msg_version(struct tipc_msg *m)
{
	return msg_bits(m, 0, 29, 7);
}

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static inline void msg_set_version(struct tipc_msg *m)
{
	msg_set_bits(m, 0, 29, 7, TIPC_VERSION);
}

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static inline u32 msg_user(struct tipc_msg *m)
{
	return msg_bits(m, 0, 25, 0xf);
}

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static inline u32 msg_isdata(struct tipc_msg *m)
{
	return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE;
}

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static inline void msg_set_user(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 0, 25, 0xf, n);
}

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static inline u32 msg_hdr_sz(struct tipc_msg *m)
{
	return msg_bits(m, 0, 21, 0xf) << 2;
}

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static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 0, 21, 0xf, n>>2);
}

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static inline u32 msg_size(struct tipc_msg *m)
{
	return msg_bits(m, 0, 0, 0x1ffff);
}

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static inline u32 msg_data_sz(struct tipc_msg *m)
{
	return msg_size(m) - msg_hdr_sz(m);
}

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static inline int msg_non_seq(struct tipc_msg *m)
{
	return msg_bits(m, 0, 20, 1);
}

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static inline void msg_set_non_seq(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 0, 20, 1, n);
}

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static inline int msg_dest_droppable(struct tipc_msg *m)
{
	return msg_bits(m, 0, 19, 1);
}

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static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d)
{
	msg_set_bits(m, 0, 19, 1, d);
}

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static inline int msg_src_droppable(struct tipc_msg *m)
{
	return msg_bits(m, 0, 18, 1);
}

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static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d)
{
	msg_set_bits(m, 0, 18, 1, d);
}

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static inline void msg_set_size(struct tipc_msg *m, u32 sz)
{
	m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz);
}

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static inline unchar *msg_data(struct tipc_msg *m)
{
	return ((unchar *)m) + msg_hdr_sz(m);
}

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static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
{
	return (struct tipc_msg *)msg_data(m);
}

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/*
 * Word 1
 */


static inline u32 msg_type(struct tipc_msg *m)
{
	return msg_bits(m, 1, 29, 0x7);
}

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static inline void msg_set_type(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 1, 29, 0x7, n);
}

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static inline u32 msg_named(struct tipc_msg *m)
{
	return msg_type(m) == TIPC_NAMED_MSG;
}

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static inline u32 msg_mcast(struct tipc_msg *m)
{
	return msg_type(m) == TIPC_MCAST_MSG;
}

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static inline u32 msg_connected(struct tipc_msg *m)
{
	return msg_type(m) == TIPC_CONN_MSG;
}

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static inline u32 msg_errcode(struct tipc_msg *m)
{
	return msg_bits(m, 1, 25, 0xf);
}

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static inline void msg_set_errcode(struct tipc_msg *m, u32 err)
{
	msg_set_bits(m, 1, 25, 0xf, err);
}

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static inline u32 msg_reroute_cnt(struct tipc_msg *m)
{
	return msg_bits(m, 1, 21, 0xf);
}

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static inline void msg_incr_reroute_cnt(struct tipc_msg *m)
{
	msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1);
}

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static inline void msg_reset_reroute_cnt(struct tipc_msg *m)
{
	msg_set_bits(m, 1, 21, 0xf, 0);
}

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static inline u32 msg_lookup_scope(struct tipc_msg *m)
{
	return msg_bits(m, 1, 19, 0x3);
}

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static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 1, 19, 0x3, n);
}

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static inline u16 msg_bcast_ack(struct tipc_msg *m)
{
	return msg_bits(m, 1, 0, 0xffff);
}

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static inline void msg_set_bcast_ack(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 1, 0, 0xffff, n);
}


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/*
 * Word 2
 */


static inline u16 msg_ack(struct tipc_msg *m)
{
	return msg_bits(m, 2, 16, 0xffff);
}

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static inline void msg_set_ack(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 2, 16, 0xffff, n);
}

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static inline u16 msg_seqno(struct tipc_msg *m)
{
	return msg_bits(m, 2, 0, 0xffff);
}

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static inline void msg_set_seqno(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 2, 0, 0xffff, n);
}

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/*
 * Words 3-10
 */


static inline u32 msg_importance(struct tipc_msg *m)
{
	int usr = msg_user(m);

	if (likely((usr <= TIPC_CRITICAL_IMPORTANCE) && !msg_errcode(m)))
		return usr;
	if ((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER))
		return msg_bits(m, 9, 0, 0x7);
	return TIPC_SYSTEM_IMPORTANCE;
}

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static inline void msg_set_importance(struct tipc_msg *m, u32 i)
{
	int usr = msg_user(m);

	if (likely((usr == MSG_FRAGMENTER) || (usr == MSG_BUNDLER)))
		msg_set_bits(m, 9, 0, 0x7, i);
	else if (i < TIPC_SYSTEM_IMPORTANCE)
		msg_set_user(m, i);
	else
		pr_warn("Trying to set illegal importance in message\n");
}

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static inline u32 msg_prevnode(struct tipc_msg *m)
{
	return msg_word(m, 3);
}

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static inline void msg_set_prevnode(struct tipc_msg *m, u32 a)
{
	msg_set_word(m, 3, a);
}

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static inline u32 msg_origport(struct tipc_msg *m)
{
	if (msg_user(m) == MSG_FRAGMENTER)
		m = msg_get_wrapped(m);
	return msg_word(m, 4);
}

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Total 36 100.00% 2 100.00%



static inline void msg_set_origport(struct tipc_msg *m, u32 p)
{
	msg_set_word(m, 4, p);
}

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static inline u32 msg_destport(struct tipc_msg *m)
{
	return msg_word(m, 5);
}

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static inline void msg_set_destport(struct tipc_msg *m, u32 p)
{
	msg_set_word(m, 5, p);
}

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static inline u32 msg_mc_netid(struct tipc_msg *m)
{
	return msg_word(m, 5);
}

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static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p)
{
	msg_set_word(m, 5, p);
}

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static inline int msg_short(struct tipc_msg *m)
{
	return msg_hdr_sz(m) == SHORT_H_SIZE;
}

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static inline u32 msg_orignode(struct tipc_msg *m)
{
	if (likely(msg_short(m)))
		return msg_prevnode(m);
	return msg_word(m, 6);
}

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static inline void msg_set_orignode(struct tipc_msg *m, u32 a)
{
	msg_set_word(m, 6, a);
}

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static inline u32 msg_destnode(struct tipc_msg *m)
{
	return msg_word(m, 7);
}

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static inline void msg_set_destnode(struct tipc_msg *m, u32 a)
{
	msg_set_word(m, 7, a);
}

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static inline u32 msg_nametype(struct tipc_msg *m)
{
	return msg_word(m, 8);
}

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static inline void msg_set_nametype(struct tipc_msg *m, u32 n)
{
	msg_set_word(m, 8, n);
}

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static inline u32 msg_nameinst(struct tipc_msg *m)
{
	return msg_word(m, 9);
}

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static inline u32 msg_namelower(struct tipc_msg *m)
{
	return msg_nameinst(m);
}

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static inline void msg_set_namelower(struct tipc_msg *m, u32 n)
{
	msg_set_word(m, 9, n);
}

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static inline void msg_set_nameinst(struct tipc_msg *m, u32 n)
{
	msg_set_namelower(m, n);
}

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static inline u32 msg_nameupper(struct tipc_msg *m)
{
	return msg_word(m, 10);
}

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static inline void msg_set_nameupper(struct tipc_msg *m, u32 n)
{
	msg_set_word(m, 10, n);
}

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/*
 * Constants and routines used to read and write TIPC internal message headers
 */

/*
 *  Connection management protocol message types
 */

#define CONN_PROBE        0

#define CONN_PROBE_REPLY  1

#define CONN_ACK          2

/*
 * Name distributor message types
 */

#define PUBLICATION       0

#define WITHDRAWAL        1

/*
 * 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 SYNCH_MSG		0

#define FAILOVER_MSG		1

/*
 * Config protocol message types
 */

#define DSC_REQ_MSG		0

#define DSC_RESP_MSG		1

/*
 * Word 1
 */


static inline u32 msg_seq_gap(struct tipc_msg *m)
{
	return msg_bits(m, 1, 16, 0x1fff);
}

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static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 1, 16, 0x1fff, n);
}

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static inline u32 msg_node_sig(struct tipc_msg *m)
{
	return msg_bits(m, 1, 0, 0xffff);
}

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static inline void msg_set_node_sig(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 1, 0, 0xffff, n);
}

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Allan Stephens 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline u32 msg_node_capabilities(struct tipc_msg *m)
{
	return msg_bits(m, 1, 15, 0x1fff);
}

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Jon Paul Maloy 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_node_capabilities(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 1, 15, 0x1fff, n);
}

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Jon Paul Maloy 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%

/*
 * Word 2
 */


static inline u32 msg_dest_domain(struct tipc_msg *m)
{
	return msg_word(m, 2);
}

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Total 20 100.00% 1 100.00%



static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n)
{
	msg_set_word(m, 2, n);
}

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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline u32 msg_bcgap_after(struct tipc_msg *m)
{
	return msg_bits(m, 2, 16, 0xffff);
}

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Total 24 100.00% 1 100.00%



static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 2, 16, 0xffff, n);
}

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Total 28 100.00% 1 100.00%



static inline u32 msg_bcgap_to(struct tipc_msg *m)
{
	return msg_bits(m, 2, 0, 0xffff);
}

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Total 24 100.00% 1 100.00%



static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 2, 0, 0xffff, n);
}


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Total 28 100.00% 1 100.00%

/*
 * Word 4
 */


static inline u32 msg_last_bcast(struct tipc_msg *m)
{
	return msg_bits(m, 4, 16, 0xffff);
}

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Total 24 100.00% 1 100.00%



static inline u32 msg_bc_snd_nxt(struct tipc_msg *m)
{
	return msg_last_bcast(m) + 1;
}

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Jon Paul Maloy 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 4, 16, 0xffff, n);
}

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Total 28 100.00% 1 100.00%



static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 4, 16, 0xffff, n);
}


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Total 28 100.00% 1 100.00%



static inline u16 msg_next_sent(struct tipc_msg *m)
{
	return msg_bits(m, 4, 0, 0xffff);
}

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Per Liden 23 95.83% 1 50.00%
Jon Paul Maloy 1 4.17% 1 50.00%
Total 24 100.00% 2 100.00%



static inline void msg_set_next_sent(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 4, 0, 0xffff, n);
}

Contributors
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Per Liden 27 96.43% 1 50.00%
Jon Paul Maloy 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 4, 0, 0xffff, n);
}

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Per Liden 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline u32 msg_bc_netid(struct tipc_msg *m)
{
	return msg_word(m, 4);
}

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Per Liden 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id)
{
	msg_set_word(m, 4, id);
}

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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline u32 msg_link_selector(struct tipc_msg *m)
{
	if (msg_user(m) == MSG_FRAGMENTER)
		m = (void *)msg_data(m);
	return msg_bits(m, 4, 0, 1);
}

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Per Liden 26 59.09% 1 50.00%
Jon Paul Maloy 18 40.91% 1 50.00%
Total 44 100.00% 2 100.00%

/*
 * Word 5
 */


static inline u16 msg_session(struct tipc_msg *m)
{
	return msg_bits(m, 5, 16, 0xffff);
}

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Per Liden 23 95.83% 1 50.00%
Jon Paul Maloy 1 4.17% 1 50.00%
Total 24 100.00% 2 100.00%



static inline void msg_set_session(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 5, 16, 0xffff, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 27 96.43% 1 50.00%
Jon Paul Maloy 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



static inline u32 msg_probe(struct tipc_msg *m)
{
	return msg_bits(m, 5, 0, 1);
}

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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_probe(struct tipc_msg *m, u32 val)
{
	msg_set_bits(m, 5, 0, 1, val);
}

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Per Liden 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline char msg_net_plane(struct tipc_msg *m)
{
	return msg_bits(m, 5, 1, 7) + 'A';
}

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Per Liden 26 100.00% 1 100.00%
Total 26 100.00% 1 100.00%



static inline void msg_set_net_plane(struct tipc_msg *m, char n)
{
	msg_set_bits(m, 5, 1, 7, (n - 'A'));
}

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Person Tokens Prop Commits CommitProp
Per Liden 32 100.00% 1 100.00%
Total 32 100.00% 1 100.00%



static inline u32 msg_linkprio(struct tipc_msg *m)
{
	return msg_bits(m, 5, 4, 0x1f);
}

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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_linkprio(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 5, 4, 0x1f, n);
}

Contributors
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Per Liden 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline u32 msg_bearer_id(struct tipc_msg *m)
{
	return msg_bits(m, 5, 9, 0x7);
}

Contributors
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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 5, 9, 0x7, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline u32 msg_redundant_link(struct tipc_msg *m)
{
	return msg_bits(m, 5, 12, 0x1);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r)
{
	msg_set_bits(m, 5, 12, 0x1, r);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 24 85.71% 1 50.00%
Allan Stephens 4 14.29% 1 50.00%
Total 28 100.00% 2 100.00%



static inline u32 msg_peer_stopping(struct tipc_msg *m)
{
	return msg_bits(m, 5, 13, 0x1);
}

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Jon Paul Maloy 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_peer_stopping(struct tipc_msg *m, u32 s)
{
	msg_set_bits(m, 5, 13, 0x1, s);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline bool msg_bc_ack_invalid(struct tipc_msg *m)
{
	switch (msg_user(m)) {
	case BCAST_PROTOCOL:
	case NAME_DISTRIBUTOR:
	case LINK_PROTOCOL:
		return msg_bits(m, 5, 14, 0x1);
	default:
		return false;
	}
}

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Jon Paul Maloy 46 100.00% 1 100.00%
Total 46 100.00% 1 100.00%



static inline void msg_set_bc_ack_invalid(struct tipc_msg *m, bool invalid)
{
	msg_set_bits(m, 5, 14, 0x1, invalid);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline char *msg_media_addr(struct tipc_msg *m)
{
	return (char *)&m->hdr[TIPC_MEDIA_INFO_OFFSET];
}

Contributors
Person Tokens Prop Commits CommitProp
Allan Stephens 25 96.15% 1 50.00%
Erik Hugne 1 3.85% 1 50.00%
Total 26 100.00% 2 100.00%



static inline u32 msg_bc_gap(struct tipc_msg *m)
{
	return msg_bits(m, 8, 0, 0x3ff);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_bc_gap(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 8, 0, 0x3ff, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%

/*
 * Word 9
 */


static inline u16 msg_msgcnt(struct tipc_msg *m)
{
	return msg_bits(m, 9, 16, 0xffff);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 23 95.83% 1 50.00%
Jon Paul Maloy 1 4.17% 1 50.00%
Total 24 100.00% 2 100.00%



static inline void msg_set_msgcnt(struct tipc_msg *m, u16 n)
{
	msg_set_bits(m, 9, 16, 0xffff, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 27 96.43% 1 50.00%
Jon Paul Maloy 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



static inline u32 msg_conn_ack(struct tipc_msg *m)
{
	return msg_bits(m, 9, 16, 0xffff);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 23 95.83% 1 50.00%
Jon Paul Maloy 1 4.17% 1 50.00%
Total 24 100.00% 2 100.00%



static inline void msg_set_conn_ack(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 9, 16, 0xffff, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Per Liden 27 96.43% 1 50.00%
Jon Paul Maloy 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



static inline u32 msg_adv_win(struct tipc_msg *m)
{
	return msg_bits(m, 9, 0, 0xffff);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_adv_win(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 9, 0, 0xffff, n);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline u32 msg_max_pkt(struct tipc_msg *m)
{
	return msg_bits(m, 9, 16, 0xffff) * 4;
}

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Person Tokens Prop Commits CommitProp
Per Liden 26 100.00% 1 100.00%
Total 26 100.00% 1 100.00%



static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 9, 16, 0xffff, (n / 4));
}

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Per Liden 32 100.00% 1 100.00%
Total 32 100.00% 1 100.00%



static inline u32 msg_link_tolerance(struct tipc_msg *m)
{
	return msg_bits(m, 9, 0, 0xffff);
}

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Per Liden 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
{
	msg_set_bits(m, 9, 0, 0xffff, n);
}

Contributors
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Per Liden 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static inline bool msg_peer_link_is_up(struct tipc_msg *m)
{
	if (likely(msg_user(m) != LINK_PROTOCOL))
		return true;
	if (msg_type(m) == STATE_MSG)
		return true;
	return false;
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 42 100.00% 3 100.00%
Total 42 100.00% 3 100.00%



static inline bool msg_peer_node_is_up(struct tipc_msg *m)
{
	if (msg_peer_link_is_up(m))
		return true;
	return msg_redundant_link(m);
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 28 100.00% 3 100.00%
Total 28 100.00% 3 100.00%



static inline bool msg_is_reset(struct tipc_msg *hdr)
{
	return (msg_user(hdr) == LINK_PROTOCOL) && (msg_type(hdr) == RESET_MSG);
}

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Jon Paul Maloy 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%

struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp);
bool tipc_msg_validate(struct sk_buff *skb);
bool tipc_msg_reverse(u32 own_addr, struct sk_buff **skb, int err);
void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type,
		   u32 hsize, u32 destnode);
struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
				uint data_sz, u32 dnode, u32 onode,
				u32 dport, u32 oport, int errcode);
int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf);
bool tipc_msg_bundle(struct sk_buff *skb, struct tipc_msg *msg, u32 mtu);
bool tipc_msg_make_bundle(struct sk_buff **skb, struct tipc_msg *msg,
			  u32 mtu, u32 dnode);
bool tipc_msg_extract(struct sk_buff *skb, struct sk_buff **iskb, int *pos);
int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,
		   int offset, int dsz, int mtu, struct sk_buff_head *list);
bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err);
bool tipc_msg_reassemble(struct sk_buff_head *list, struct sk_buff_head *rcvq);
bool tipc_msg_pskb_copy(u32 dst, struct sk_buff_head *msg,
			struct sk_buff_head *cpy);
void __tipc_skb_queue_sorted(struct sk_buff_head *list, u16 seqno,
			     struct sk_buff *skb);



static inline u16 buf_seqno(struct sk_buff *skb)
{
	return msg_seqno(buf_msg(skb));
}

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Jon Paul Maloy 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%

/* tipc_skb_peek(): peek and reserve first buffer in list
 * @list: list to be peeked in
 * Returns pointer to first buffer in list, if any
 */


static inline struct sk_buff *tipc_skb_peek(struct sk_buff_head *list,
					    spinlock_t *lock)
{
	struct sk_buff *skb;

	spin_lock_bh(lock);
	skb = skb_peek(list);
	if (skb)
		skb_get(skb);
	spin_unlock_bh(lock);
	return skb;
}

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Jon Paul Maloy 52 100.00% 1 100.00%
Total 52 100.00% 1 100.00%

/* tipc_skb_peek_port(): find a destination port, ignoring all destinations
 *                       up to and including 'filter'.
 * Note: ignoring previously tried destinations minimizes the risk of
 *       contention on the socket lock
 * @list: list to be peeked in
 * @filter: last destination to be ignored from search
 * Returns a destination port number, of applicable.
 */


static inline u32 tipc_skb_peek_port(struct sk_buff_head *list, u32 filter)
{
	struct sk_buff *skb;
	u32 dport = 0;
	bool ignore = true;

	spin_lock_bh(&list->lock);
	skb_queue_walk(list, skb) {
		dport = msg_destport(buf_msg(skb));
		if (!filter || skb_queue_is_last(list, skb))
			break;
		if (dport == filter)
			ignore = false;
		else if (!ignore)
			break;
	}
	spin_unlock_bh(&list->lock);
	return dport;
}

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Jon Paul Maloy 97 100.00% 1 100.00%
Total 97 100.00% 1 100.00%

/* tipc_skb_dequeue(): unlink first buffer with dest 'dport' from list
 * @list: list to be unlinked from
 * @dport: selection criteria for buffer to unlink
 */


static inline struct sk_buff *tipc_skb_dequeue(struct sk_buff_head *list,
					       u32 dport)
{
	struct sk_buff *_skb, *tmp, *skb = NULL;

	spin_lock_bh(&list->lock);
	skb_queue_walk_safe(list, _skb, tmp) {
		if (msg_destport(buf_msg(_skb)) == dport) {
			__skb_unlink(_skb, list);
			skb = _skb;
			break;
		}
	}
	spin_unlock_bh(&list->lock);
	return skb;
}

Contributors
Person Tokens Prop Commits CommitProp
Jon Paul Maloy 85 100.00% 1 100.00%
Total 85 100.00% 1 100.00%

/* tipc_skb_queue_splice_tail - append an skb list to lock protected list
 * @list: the new list to append. Not lock protected
 * @head: target list. Lock protected.
 */


static inline void tipc_skb_queue_splice_tail(struct sk_buff_head *list,
					      struct sk_buff_head *head)
{
	spin_lock_bh(&head->lock);
	skb_queue_splice_tail(list, head);
	spin_unlock_bh(&head->lock);
}

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Jon Paul Maloy 40 100.00% 1 100.00%
Total 40 100.00% 1 100.00%

/* tipc_skb_queue_splice_tail_init - merge two lock protected skb lists
 * @list: the new list to add. Lock protected. Will be reinitialized
 * @head: target list. Lock protected.
 */


static inline void tipc_skb_queue_splice_tail_init(struct sk_buff_head *list,
						   struct sk_buff_head *head)
{
	struct sk_buff_head tmp;

	__skb_queue_head_init(&tmp);

	spin_lock_bh(&list->lock);
	skb_queue_splice_tail_init(list, &tmp);
	spin_unlock_bh(&list->lock);
	tipc_skb_queue_splice_tail(&tmp, head);
}

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Jon Paul Maloy 59 100.00% 1 100.00%
Total 59 100.00% 1 100.00%

#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
Per Liden 1952 47.53% 1 1.59%
Jon Paul Maloy 1275 31.04% 36 57.14%
Allan Stephens 789 19.21% 15 23.81%
Ying Xue 67 1.63% 5 7.94%
Hideaki Yoshifuji / 吉藤英明 9 0.22% 1 1.59%
Al Viro 8 0.19% 2 3.17%
Parthasarathy Bhuvaragan 5 0.12% 2 3.17%
Erik Hugne 2 0.05% 1 1.59%
Total 4107 100.00% 63 100.00%
Directory: net/tipc

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Ying Xue	24	100.00%	1	100.00%
Total	24	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.11 net/tipc/msg.h

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