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/******************************************************************************
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*******************************************************************************
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** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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** Copyright (C) 2004 Red Hat, Inc. All rights reserved.
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** This copyrighted material is made available to anyone wishing to use,
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** modify, copy, or redistribute it subject to the terms and conditions
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** of the GNU General Public License v.2.
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*******************************************************************************
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******************************************************************************/
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/* CMAN socket interface header,
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may be include by user or kernel code */
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#ifndef __CNXMAN_SOCKET_H
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#define __CNXMAN_SOCKET_H
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/* A currently unused number. TIPC also uses this number and you're unlikely
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#define PF_CLUSTER AF_CLUSTER
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/* Protocol(socket) types */
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#define CLPROTO_MASTER 2
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#define CLPROTO_CLIENT 3
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/* ioctls -- should register these properly */
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#define SIOCCLUSTER_NOTIFY _IOW('x', 0x01, int)
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#define SIOCCLUSTER_REMOVENOTIFY _IO( 'x', 0x02)
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#define SIOCCLUSTER_GETMEMBERS _IOR('x', 0x03, struct cl_cluster_nodelist)
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#define SIOCCLUSTER_SETEXPECTED_VOTES _IOW('x', 0x04, int)
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#define SIOCCLUSTER_ISQUORATE _IO( 'x', 0x05)
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#define SIOCCLUSTER_ISLISTENING _IOW('x', 0x06, struct cl_listen_request)
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#define SIOCCLUSTER_GETALLMEMBERS _IOR('x', 0x07, struct cl_cluster_nodelist)
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#define SIOCCLUSTER_SET_VOTES _IOW('x', 0x08, int)
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#define SIOCCLUSTER_GET_VERSION _IOR('x', 0x09, struct cl_version)
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#define SIOCCLUSTER_SET_VERSION _IOW('x', 0x0a, struct cl_version)
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#define SIOCCLUSTER_ISACTIVE _IO( 'x', 0x0b)
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#define SIOCCLUSTER_KILLNODE _IOW('x', 0x0c, int)
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#define SIOCCLUSTER_GET_JOINCOUNT _IO( 'x', 0x0d)
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#define SIOCCLUSTER_SERVICE_REGISTER _IOW('x', 0x0e, char)
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#define SIOCCLUSTER_SERVICE_UNREGISTER _IO('x', 0x0f)
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#define SIOCCLUSTER_SERVICE_JOIN _IO( 'x', 0x10)
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#define SIOCCLUSTER_SERVICE_LEAVE _IO( 'x', 0x20)
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#define SIOCCLUSTER_SERVICE_SETSIGNAL _IOW('x', 0x30, int)
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#define SIOCCLUSTER_SERVICE_STARTDONE _IOW('x', 0x40, unsigned int)
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#define SIOCCLUSTER_SERVICE_GETEVENT _IOR('x', 0x50, struct cl_service_event)
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#define SIOCCLUSTER_SERVICE_GETMEMBERS _IOR('x', 0x60, struct cl_cluster_nodelist)
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#define SIOCCLUSTER_SERVICE_GLOBALID _IOR('x', 0x70, uint32_t)
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#define SIOCCLUSTER_SERVICE_SETLEVEL _IOR('x', 0x80, int)
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#define SIOCCLUSTER_GETNODE _IOWR('x', 0x90, struct cl_cluster_node)
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#define SIOCCLUSTER_BARRIER _IOW('x', 0x0a0, struct cl_barrier_info)
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/* These were setsockopts */
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#define SIOCCLUSTER_PASS_SOCKET _IOW('x', 0x0b0, struct cl_passed_sock)
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#define SIOCCLUSTER_SET_NODENAME _IOW('x', 0x0b1, char *)
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#define SIOCCLUSTER_SET_NODEID _IOW('x', 0x0b2, int)
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#define SIOCCLUSTER_JOIN_CLUSTER _IOW('x', 0x0b3, struct cl_join_cluster_info)
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#define SIOCCLUSTER_LEAVE_CLUSTER _IOW('x', 0x0b4, int)
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/* Maximum size of a cluster message */
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#define MAX_CLUSTER_MESSAGE 1500
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#define MAX_CLUSTER_MEMBER_NAME_LEN 255
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#define MAX_BARRIER_NAME_LEN 33
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#define MAX_SA_ADDR_LEN 12
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#define MAX_CLUSTER_NAME_LEN 16
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/* Well-known cluster port numbers */
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#define CLUSTER_PORT_MEMBERSHIP 1 /* Mustn't block during cluster
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#define CLUSTER_PORT_SERVICES 2
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#define CLUSTER_PORT_SYSMAN 10 /* Remote execution daemon */
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#define CLUSTER_PORT_CLVMD 11 /* Cluster LVM daemon */
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#define CLUSTER_PORT_SLM 12 /* LVM SLM (simple lock manager) */
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/* Port numbers above this will be blocked when the cluster is inquorate or in
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#define HIGH_PROTECTED_PORT 9
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/* Reasons for leaving the cluster */
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#define CLUSTER_LEAVEFLAG_DOWN 0 /* Normal shutdown */
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#define CLUSTER_LEAVEFLAG_KILLED 1
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#define CLUSTER_LEAVEFLAG_PANIC 2
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#define CLUSTER_LEAVEFLAG_REMOVED 3 /* This one can reduce quorum */
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#define CLUSTER_LEAVEFLAG_REJECTED 4 /* Not allowed into the cluster in the
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#define CLUSTER_LEAVEFLAG_INCONSISTENT 5 /* Our view of the cluster is
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#define CLUSTER_LEAVEFLAG_DEAD 6 /* Discovered to be dead */
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#define CLUSTER_LEAVEFLAG_FORCE 0x10 /* Forced by command-line */
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/* OOB messages sent to a local socket */
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#define CLUSTER_OOB_MSG_PORTCLOSED 1
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#define CLUSTER_OOB_MSG_STATECHANGE 2
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#define CLUSTER_OOB_MSG_SERVICEEVENT 3
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/* Sendmsg flags, these are above the normal sendmsg flags so they don't
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#define MSG_NOACK 0x010000 /* Don't need an ACK for this message */
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#define MSG_QUEUE 0x020000 /* Queue the message for sending later */
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#define MSG_MULTICAST 0x080000 /* Message was sent to all nodes in the cluster
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#define MSG_ALLINT 0x100000 /* Send out of all interfaces */
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#define MSG_REPLYEXP 0x200000 /* Reply is expected */
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typedef enum { NODESTATE_REMOTEMEMBER, NODESTATE_JOINING, NODESTATE_MEMBER,
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NODESTATE_DEAD } nodestate_t;
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unsigned short scl_family;
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unsigned char scl_flags;
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unsigned char scl_port;
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* This is how we pass the multicast & receive sockets into kernel space.
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struct cl_passed_sock {
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int fd; /* FD of master socket to do multicast on */
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int number; /* Socket number, to match up recvonly & bcast
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int multicast; /* Is it multicast or receive ? */
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/* Cluster configuration info passed when we join the cluster */
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struct cl_join_cluster_info {
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unsigned int expected_votes;
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unsigned int two_node;
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unsigned int config_version;
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char cluster_name[17];
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/* This is the structure, per node, returned from the membership ioctl */
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struct cl_cluster_node {
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unsigned int node_id;
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unsigned int leave_reason;
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unsigned int incarnation;
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char name[MAX_CLUSTER_MEMBER_NAME_LEN];
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/* The struct passed to the membership ioctls */
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struct cl_cluster_nodelist {
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uint32_t max_members;
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struct cl_cluster_node *nodes;
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/* Structure passed to SIOCCLUSTER_ISLISTENING */
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struct cl_listen_request {
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/* A Cluster PORTCLOSED message - received by a local user as an OOB message */
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struct cl_portclosed_oob {
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unsigned char cmd; /* CLUSTER_OOB_MSG_PORTCLOSED */
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/* Get all version numbers or set the config version */
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/* structure passed to barrier ioctls */
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struct cl_barrier_info {
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char name[MAX_BARRIER_NAME_LEN];
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typedef enum { SERVICE_EVENT_STOP, SERVICE_EVENT_START, SERVICE_EVENT_FINISH,
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SERVICE_EVENT_LEAVEDONE } service_event_t;
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typedef enum { SERVICE_START_FAILED, SERVICE_START_JOIN, SERVICE_START_LEAVE }
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struct cl_service_event {
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service_event_t type;
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service_start_t start_type;
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unsigned int event_id;
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unsigned int last_stop;
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unsigned int last_start;
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unsigned int last_finish;
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unsigned int node_count;
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/* Commands to the barrier ioctl */
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#define BARRIER_IOCTL_REGISTER 1
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#define BARRIER_IOCTL_CHANGE 2
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#define BARRIER_IOCTL_DELETE 3
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#define BARRIER_IOCTL_WAIT 4
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/* Attributes of a barrier - bitmask */
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#define BARRIER_ATTR_AUTODELETE 1
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#define BARRIER_ATTR_MULTISTEP 2
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#define BARRIER_ATTR_MANUAL 4
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#define BARRIER_ATTR_ENABLED 8
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#define BARRIER_ATTR_CALLBACK 16
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/* Attribute setting commands */
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#define BARRIER_SETATTR_AUTODELETE 1
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#define BARRIER_SETATTR_MULTISTEP 2
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#define BARRIER_SETATTR_ENABLED 3
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#define BARRIER_SETATTR_NODES 4
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#define BARRIER_SETATTR_CALLBACK 5
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#define BARRIER_SETATTR_TIMEOUT 6
added
removed
daemons/clvmd/cnxman-socket.h
