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tipc.h
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ /* * include/uapi/linux/tipc.h: Header for TIPC socket interface * * Copyright (c) 2003-2006, 2015-2016 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_socket_addr { __u32 ref; __u32 node; }; struct tipc_service_addr { __u32 type; __u32 instance; }; struct tipc_service_range { __u32 type; __u32 lower; __u32 upper; }; /* * Application-accessible service types */ #define TIPC_NODE_STATE 0 /* node state service type */ #define TIPC_TOP_SRV 1 /* topology server service type */ #define TIPC_LINK_STATE 2 /* link state service type */ #define TIPC_RESERVED_TYPES 64 /* lowest user-allowed service type */ /* * Publication scopes when binding service / service range */ enum tipc_scope { TIPC_CLUSTER_SCOPE = 2, /* 0 can also be used */ 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: evt at each match */ #define TIPC_SUB_SERVICE 0x02 /* filter: evt at first up/last down */ #define TIPC_SUB_CANCEL 0x04 /* filter: cancel a subscription */ #define TIPC_WAIT_FOREVER (~0) /* timeout for permanent subscription */ struct tipc_subscr { struct tipc_service_range seq; /* range 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 /* withdrawal event */ #define TIPC_SUBSCR_TIMEOUT 3 /* subscription timeout event */ struct tipc_event { __u32 event; /* event type */ __u32 found_lower; /* matching range */ __u32 found_upper; /* " " */ struct tipc_socket_addr port; /* associated socket */ 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_MCAST 1 #define TIPC_SERVICE_RANGE 1 #define TIPC_SERVICE_ADDR 2 #define TIPC_SOCKET_ADDR 3 struct sockaddr_tipc { unsigned short family; unsigned char addrtype; signed char scope; union { struct tipc_socket_addr id; struct tipc_service_range nameseq; struct { struct tipc_service_addr 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 names */ #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) */ #define TIPC_MCAST_BROADCAST 133 /* Default: TIPC selects. No arg */ #define TIPC_MCAST_REPLICAST 134 /* Default: TIPC selects. No arg */ #define TIPC_GROUP_JOIN 135 /* Takes struct tipc_group_req* */ #define TIPC_GROUP_LEAVE 136 /* No argument */ #define TIPC_SOCK_RECVQ_USED 137 /* Default: none (read only) */ #define TIPC_NODELAY 138 /* Default: false */ /* * Flag values */ #define TIPC_GROUP_LOOPBACK 0x1 /* Receive copy of sent msg when match */ #define TIPC_GROUP_MEMBER_EVTS 0x2 /* Receive membership events in socket */ struct tipc_group_req { __u32 type; /* group id */ __u32 instance; /* member id */ __u32 scope; /* cluster/node */ __u32 flags; }; /* * 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: node:interface-node:interface */ #define TIPC_NODEID_LEN 16 #define TIPC_MAX_MEDIA_NAME 16 #define TIPC_MAX_IF_NAME 16 #define TIPC_MAX_BEARER_NAME 32 #define TIPC_MAX_LINK_NAME 68 #define SIOCGETLINKNAME SIOCPROTOPRIVATE #define SIOCGETNODEID (SIOCPROTOPRIVATE + 1) struct tipc_sioc_ln_req { __u32 peer; __u32 bearer_id; char linkname[TIPC_MAX_LINK_NAME]; }; struct tipc_sioc_nodeid_req { __u32 peer; char node_id[TIPC_NODEID_LEN]; }; /* * TIPC Crypto, AEAD */ #define TIPC_AEAD_ALG_NAME (32) struct tipc_aead_key { char alg_name[TIPC_AEAD_ALG_NAME]; unsigned int keylen; /* in bytes */ char key[]; }; #define TIPC_AEAD_KEYLEN_MIN (16 + 4) #define TIPC_AEAD_KEYLEN_MAX (32 + 4) #define TIPC_AEAD_KEY_SIZE_MAX (sizeof(struct tipc_aead_key) + \ TIPC_AEAD_KEYLEN_MAX) static __inline__ int tipc_aead_key_size(struct tipc_aead_key *key) { return sizeof(*key) + key->keylen; } #define TIPC_REKEYING_NOW (~0U) /* The macros and functions below are deprecated: */ #define TIPC_CFG_SRV 0 #define TIPC_ZONE_SCOPE 1 #define TIPC_ADDR_NAMESEQ 1 #define TIPC_ADDR_NAME 2 #define TIPC_ADDR_ID 3 #define TIPC_NODE_BITS 12 #define TIPC_CLUSTER_BITS 12 #define TIPC_ZONE_BITS 8 #define TIPC_NODE_OFFSET 0 #define TIPC_CLUSTER_OFFSET TIPC_NODE_BITS #define TIPC_ZONE_OFFSET (TIPC_CLUSTER_OFFSET + TIPC_CLUSTER_BITS) #define TIPC_NODE_SIZE ((1UL << TIPC_NODE_BITS) - 1) #define TIPC_CLUSTER_SIZE ((1UL << TIPC_CLUSTER_BITS) - 1) #define TIPC_ZONE_SIZE ((1UL << TIPC_ZONE_BITS) - 1) #define TIPC_NODE_MASK (TIPC_NODE_SIZE << TIPC_NODE_OFFSET) #define TIPC_CLUSTER_MASK (TIPC_CLUSTER_SIZE << TIPC_CLUSTER_OFFSET) #define TIPC_ZONE_MASK (TIPC_ZONE_SIZE << TIPC_ZONE_OFFSET) #define TIPC_ZONE_CLUSTER_MASK (TIPC_ZONE_MASK | TIPC_CLUSTER_MASK) #define tipc_portid tipc_socket_addr #define tipc_name tipc_service_addr #define tipc_name_seq tipc_service_range static __inline__ __u32 tipc_addr(unsigned int zone, unsigned int cluster, unsigned int node) { return (zone << TIPC_ZONE_OFFSET) | (cluster << TIPC_CLUSTER_OFFSET) | node; } static __inline__ unsigned int tipc_zone(__u32 addr) { return addr >> TIPC_ZONE_OFFSET; } static __inline__ unsigned int tipc_cluster(__u32 addr) { return (addr & TIPC_CLUSTER_MASK) >> TIPC_CLUSTER_OFFSET; } static __inline__ unsigned int tipc_node(__u32 addr) { return addr & TIPC_NODE_MASK; } #endif
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