cregit-Linux how code gets into the kernel

Release 4.7 include/uapi/linux/tipc.h

/*
 * include/uapi/linux/tipc.h: Header for TIPC socket interface
 *
 * Copyright (c) 2003-2006, Ericsson AB
 * Copyright (c) 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 _LINUX_TIPC_H_

#define _LINUX_TIPC_H_

#include <linux/types.h>
#include <linux/sockios.h>

/*
 * TIPC addressing primitives
 */


struct tipc_portid {
	
__u32 ref;
	
__u32 node;
};


struct tipc_name {
	
__u32 type;
	
__u32 instance;
};


struct tipc_name_seq {
	
__u32 type;
	
__u32 lower;
	
__u32 upper;
};


static inline __u32 tipc_addr(unsigned int zone, unsigned int cluster, unsigned int node) { return (zone << 24) | (cluster << 12) | node; }

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static inline unsigned int tipc_zone(__u32 addr) { return addr >> 24; }

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static inline unsigned int tipc_cluster(__u32 addr) { return (addr >> 12) & 0xfff; }

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static inline unsigned int tipc_node(__u32 addr) { return addr & 0xfff; }

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/* * Application-accessible port name types */ #define TIPC_CFG_SRV 0 /* configuration service name type */ #define TIPC_TOP_SRV 1 /* topology service name type */ #define TIPC_LINK_STATE 2 /* link state name type */ #define TIPC_RESERVED_TYPES 64 /* lowest user-publishable name type */ /* * Publication scopes when binding port names and port name sequences */ #define TIPC_ZONE_SCOPE 1 #define TIPC_CLUSTER_SCOPE 2 #define TIPC_NODE_SCOPE 3 /* * Limiting values for messages */ #define TIPC_MAX_USER_MSG_SIZE 66000U /* * Message importance levels */ #define TIPC_LOW_IMPORTANCE 0 #define TIPC_MEDIUM_IMPORTANCE 1 #define TIPC_HIGH_IMPORTANCE 2 #define TIPC_CRITICAL_IMPORTANCE 3 /* * Msg rejection/connection shutdown reasons */ #define TIPC_OK 0 #define TIPC_ERR_NO_NAME 1 #define TIPC_ERR_NO_PORT 2 #define TIPC_ERR_NO_NODE 3 #define TIPC_ERR_OVERLOAD 4 #define TIPC_CONN_SHUTDOWN 5 /* * TIPC topology subscription service definitions */ #define TIPC_SUB_PORTS 0x01 /* filter for port availability */ #define TIPC_SUB_SERVICE 0x02 /* filter for service availability */ #define TIPC_SUB_CANCEL 0x04 /* cancel a subscription */ #define TIPC_WAIT_FOREVER (~0) /* timeout for permanent subscription */ struct tipc_subscr { struct tipc_name_seq seq; /* name sequence of interest */ __u32 timeout; /* subscription duration (in ms) */ __u32 filter; /* bitmask of filter options */ char usr_handle[8]; /* available for subscriber use */ }; #define TIPC_PUBLISHED 1 /* publication event */ #define TIPC_WITHDRAWN 2 /* withdraw event */ #define TIPC_SUBSCR_TIMEOUT 3 /* subscription timeout event */ struct tipc_event { __u32 event; /* event type */ __u32 found_lower; /* matching name seq instances */ __u32 found_upper; /* " " " " */ struct tipc_portid port; /* associated port */ struct tipc_subscr s; /* associated subscription */ }; /* * Socket API */ #ifndef AF_TIPC #define AF_TIPC 30 #endif #ifndef PF_TIPC #define PF_TIPC AF_TIPC #endif #ifndef SOL_TIPC #define SOL_TIPC 271 #endif #define TIPC_ADDR_NAMESEQ 1 #define TIPC_ADDR_MCAST 1 #define TIPC_ADDR_NAME 2 #define TIPC_ADDR_ID 3 struct sockaddr_tipc { unsigned short family; unsigned char addrtype; signed char scope; union { struct tipc_portid id; struct tipc_name_seq nameseq; struct { struct tipc_name name; __u32 domain; } name; } addr; }; /* * Ancillary data objects supported by recvmsg() */ #define TIPC_ERRINFO 1 /* error info */ #define TIPC_RETDATA 2 /* returned data */ #define TIPC_DESTNAME 3 /* destination name */ /* * TIPC-specific socket option values */ #define TIPC_IMPORTANCE 127 /* Default: TIPC_LOW_IMPORTANCE */ #define TIPC_SRC_DROPPABLE 128 /* Default: based on socket type */ #define TIPC_DEST_DROPPABLE 129 /* Default: based on socket type */ #define TIPC_CONN_TIMEOUT 130 /* Default: 8000 (ms) */ #define TIPC_NODE_RECVQ_DEPTH 131 /* Default: none (read only) */ #define TIPC_SOCK_RECVQ_DEPTH 132 /* Default: none (read only) */ /* * Maximum sizes of TIPC bearer-related names (including terminating NULL) * The string formatting for each name element is: * media: media * interface: media:interface name * link: Z.C.N:interface-Z.C.N:interface * */ #define TIPC_MAX_MEDIA_NAME 16 #define TIPC_MAX_IF_NAME 16 #define TIPC_MAX_BEARER_NAME 32 #define TIPC_MAX_LINK_NAME 60 #define SIOCGETLINKNAME SIOCPROTOPRIVATE struct tipc_sioc_ln_req { __u32 peer; __u32 bearer_id; char linkname[TIPC_MAX_LINK_NAME]; }; #endif

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