backport to buster

[hcoop/debian/openafs.git] / src / vlserver / vldbint.xg

/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 *
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

package	VL_
prefix S
statindex 15

#include	"vl_opcodes.h"
%#include	<afs/vl_opcodes.h>	/* directly to other places */

%#ifdef KERNEL
%#define	afs_xdr_array(a,b,c,d,e,f)	afs_xdr_arrayN(a,b,c,d,e,f)
%#endif

/* Current limitations on parameters that affect other packages (i.e. volume) */
%#define VldbVersion "4"

const	VLDBVERSION_4	=	4;
const	VLDBVERSION	=	3;
const	OVLDBVERSION	=	2;
const	VL_MAXNAMELEN	=	65;
const	OMAXNSERVERS	=	8;
const	NMAXNSERVERS	=	13;
const	MAXTYPES	=	3;

/* Structure used by the VLUpdateEntry routine; multiple entries can be updated at once by setting the appropriate Mask bits. */
struct VldbUpdateEntry {
	afs_uint32	Mask;
	char	name[VL_MAXNAMELEN];
	afs_int32	spares3;
	afs_int32	flags;
	afs_uint32	ReadOnlyId;
	afs_uint32	BackupId;
	afs_uint32	cloneId;
	afs_int32	nModifiedRepsites;
	afs_uint32	RepsitesMask[OMAXNSERVERS];
	afs_int32	RepsitesTargetServer[OMAXNSERVERS];
	afs_int32	RepsitesTargetPart[OMAXNSERVERS];
	afs_int32	RepsitesNewServer[OMAXNSERVERS];
	afs_int32	RepsitesNewPart[OMAXNSERVERS];
	afs_int32	RepsitesNewFlags[OMAXNSERVERS];
};

/* struct VldbUpdateEntry Mask bit values */
const	VLUPDATE_VOLUMENAME	=	0x0001;
/*const	VLUPDATE_VOLUMETYPE	=	0x0002;*/
const	VLUPDATE_FLAGS		=	0x0004;
const	VLUPDATE_READONLYID	=	0x0008;
const	VLUPDATE_BACKUPID		=	0x0010;
const	VLUPDATE_REPSITES		=	0x0020;
const	VLUPDATE_CLONEID		=	0x0080;
const	VLUPDATE_VOLNAMEHASH	=	0x0100;
const	VLUPDATE_RWID		=	0x0200;

/* struct VldbUpdateEntry RepsitesMask[i] bit values */
const	VLUPDATE_REPS_DELETE	=	0x0100;
const	VLUPDATE_REPS_ADD		=	0x0200;
const	VLUPDATE_REPS_MODSERV	=	0x0400;
const	VLUPDATE_REPS_MODPART	=	0x0800;
const	VLUPDATE_REPS_MODFLAG	=	0x1000;

/*typedef	string volumename<VL_MAXNAMELEN>;*/

const	DEFAULTBULK	=	10000;
typedef	opaque bulk<DEFAULTBULK>;

/*  Structure used by the VLListAttributes routine */
struct VldbListByAttributes {
	afs_uint32	Mask;
	afs_int32	server;
	afs_int32	partition;
	afs_int32	spares3;
	afs_uint32	volumeid;
	afs_int32	flag;
};

/* struct VldbListByAttributes Mask bit values */
const	VLLIST_SERVER	=	0x1;
const	VLLIST_PARTITION=	0x2;
/*const	VLLIST_VOLUMETYPE=	0x4;*/
const	VLLIST_VOLUMEID=		0x8;
const	VLLIST_FLAG=		0x10;

/* External (visible) representation of an individual vldb entry */
struct vldbentry   {
	char	name[VL_MAXNAMELEN];		/* Volume name */
	afs_int32	spares3;
	afs_int32	nServers;			/* Number of servers that have this volume */
	afs_int32	serverNumber[OMAXNSERVERS];	/* Server # for each server that holds volume */
	afs_int32	serverPartition[OMAXNSERVERS];	/* Server Partition number */
	afs_int32	serverFlags[OMAXNSERVERS];	/* Server flags */
	afs_uint32	volumeId[MAXTYPES];		/* Corresponding volume of each type */
	afs_uint32	cloneId;			/* Used during cloning */
	afs_int32	flags;				/* General flags */
};

struct nvldbentry   {
	char	name[VL_MAXNAMELEN];		/* Volume name */
	afs_int32	nServers;			/* Number of servers that have this volume */
	afs_int32	serverNumber[NMAXNSERVERS];	/* Server # for each server that holds volume */
	afs_int32	serverPartition[NMAXNSERVERS];	/* Server Partition number */
	afs_int32	serverFlags[NMAXNSERVERS];	/* Server flags */
	afs_uint32	volumeId[MAXTYPES];		/* Corresponding volume of each type */
	afs_uint32	cloneId;			/* Used during cloning */
	afs_int32	flags;				/* General flags */
	afs_int32	matchindex;
	afs_int32	spares2;
	afs_int32	spares3;
	afs_int32	spares4;
	afs_int32	spares5;
	afs_int32	spares6;
	afs_int32	spares7;
	afs_int32	spares8;
	afs_int32	spares9;
};


struct ListAddrByAttributes {
	afs_int32 	Mask;
	afs_uint32	ipaddr;
	afs_int32	index;
	afs_int32	spare1;
	afsUUID	uuid;
};
const	VLADDR_IPADDR	=	0x1;
const	VLADDR_INDEX	=	0x2;
const	VLADDR_UUID	=	0x4;

struct uvldbentry   {
	char	name[VL_MAXNAMELEN];		/* Volume name */
	afs_int32	nServers;			/* Number of servers that have this volume */
	afsUUID	serverNumber[NMAXNSERVERS];	/* Server # for each server that holds volume */
	afs_int32	serverUnique[NMAXNSERVERS];	/* Server unique address */
	afs_int32	serverPartition[NMAXNSERVERS];	/* Server Partition number */
	afs_int32	serverFlags[NMAXNSERVERS];	/* Server flags */
	afs_uint32	volumeId[MAXTYPES];		/* Corresponding volume of each type */
	afs_uint32	cloneId;			/* Used during cloning */
	afs_int32	flags;				/* General flags */
	afs_int32	matchindex;			/* The server index we matched */
	afs_int32	spares2;
	afs_int32	spares3;
	afs_int32	spares4;
	afs_int32	spares5;
	afs_int32	spares6;
	afs_int32	spares7;
	afs_int32	spares8;
	afs_int32	spares9;
};


/* Leading section of the vldb header (vlheader); contains frequently used globals and general statistics information */
struct vital_vlheader {
    afs_int32    vldbversion;		    /* vldb version number--must be 1st */
    afs_int32    headersize;		    /* total bytes in header */
    afs_int32    freePtr;			    /* first (if any) free enry in freelist */
    afs_int32    eofPtr;			    /* first free byte in file */
    afs_int32    allocs;			    /* total calls to AllocBlock */
    afs_int32    frees;			    /* total calls to FreeBlock */
    afs_uint32   MaxVolumeId;		    /* Global volume id holder */
    afs_int32    totalEntries[MAXTYPES];	    /* Total entries by voltype in vldb */
};

/* General stats on opcode hit frequency */
const	MAX_NUMBER_OPCODES	= 50;
struct vldstats {
    afs_uint32 start_time;			/* Time statistics were last cleared */
    afs_int32 requests[MAX_NUMBER_OPCODES];	/* requests of each type */
    afs_int32 aborts[MAX_NUMBER_OPCODES];		/* aborts of each type */
    afs_int32 reserved[5];				/* for future usage */
};

/* Volser information/status */
const VLOP_MOVE        = 0x10;
const VLOP_RELEASE     = 0x20;
const VLOP_BACKUP      = 0x40;
const VLOP_DELETE      = 0x80;
const VLOP_DUMP        = 0x100;

/*
 * Additional VLOP_xxxx constants cannot be added without breaking
 * compatibility so must reuse values. New names are added for
 * code readability.
 */
%#define VLOP_ADDSITE   VLOP_DELETE
%#define VLOP_RESTORE   VLOP_DUMP

%#define VLOP_ALLOPERS ( VLOP_MOVE | VLOP_RELEASE | VLOP_BACKUP | VLOP_DELETE | VLOP_DUMP)

/* defines for convenience of vl users */
%#define	VLF_RWEXISTS	    0x1000  /* flags for whole vldb entry */
%#define	VLF_ROEXISTS	    0x2000
%#define	VLF_BACKEXISTS	    0x4000
%#define	VLF_DFSFILESET	    0x8000  /* Volume is really DFS fileset */
%#define	VLSF_NEWREPSITE	    0x01    /* flags for indiv. server entry */
%#define	VLSF_ROVOL	    0x02
%#define	VLSF_RWVOL	    0x04
%#define	VLSF_BACKVOL	    0x08
%#define	VLSF_UUID	    0x10
%#define	VLSF_DONTUSE	    0x20
%#define	VLSF_RWREPLICA	    0x40    /* Volume is a RW replica */

typedef	vldbentry bulkentries<>;
typedef	nvldbentry nbulkentries<>;
typedef	uvldbentry ubulkentries<>;
/*
 * 500 is an arbitrary implementation limit, larger than what we support storing.
 * It lets the XDR decoder detect an attack (excessively large input) and reject
 * it without incurring excessive resource usage.
 */
typedef afs_uint32 bulkaddrs<500>;

struct VLCallBack {
    afs_uint32 CallBackVersion;
    afs_uint32 ExpirationTime;
    afs_uint32 CallBackType;
    afs_uint32 Handle;
};

/* vldb interface calls */

/*
 * The kernel needs to be able to use a subset of these.
 *
 * Rather than try to make sure the all the kernels have
 * all the necessary xdr routines for *all* the interfaces,
 * we arrange that only the ones necessary for the kernel
 * get compiled in the kernel.
 */

/*
 * VL_Probe was renamed to VL_ProbeServer to avoid namespace collisions
 * with DFS clients.
 */

ProbeServer(
) multi = VLPROBE;

/*
 * VL_GetEntryByName was renamed to VL_GetEntryByNameO to avoid
 * namespace collisions with DFS clients.
 */

GetEntryByNameO(
  IN string volumename<VL_MAXNAMELEN>,
  OUT vldbentry *entry
) = VLGETENTRYBYNAME;

GetEntryByNameN(
  IN string volumename<VL_MAXNAMELEN>,
  OUT nvldbentry *entry
) = VLGETENTRYBYNAMEN;

GetEntryByNameU(
  IN string volumename<VL_MAXNAMELEN>,
  OUT uvldbentry *entry
) = VLGETENTRYBYNAMEU;

GetAddrsU(
  IN ListAddrByAttributes *inaddr,
  OUT afsUUID *uuidp1,
  OUT afs_int32 *uniquifier,
  OUT afs_int32 *nentries,
  OUT bulkaddrs *blkaddrs
) = VLGETADDRSU;

/*
 * The rest of the interfaces are not needed in the kernel
 */

%#if !defined(KERNEL)

typedef struct single_vldbentry  *vldblist;

struct single_vldbentry {
	vldbentry VldbEntry;
	vldblist next_vldb;
};

struct vldb_list {
vldblist node;
};

typedef struct single_nvldbentry  *nvldblist;

struct single_nvldbentry {
	nvldbentry VldbEntry;
	nvldblist next_vldb;
};

struct nvldb_list {
nvldblist node;
};

CreateEntry(
  IN vldbentry *newentry
) = VLCREATEENTRY;

DeleteEntry(
  IN afs_uint32 Volid,
  afs_int32 voltype
) = VLDELETEENTRY;

GetEntryByID(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  OUT vldbentry *entry
) = VLGETENTRYBYID;

GetNewVolumeId(
  IN afs_uint32 bumpcount,
  OUT afs_uint32 *newvolumid
) = VLGETNEWVOLUMEID;

ReplaceEntry(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  vldbentry *newentry,
  afs_int32 ReleaseType
) = VLREPLACEENTRY;

UpdateEntry(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  VldbUpdateEntry *UpdateEntry,
  afs_int32 ReleaseType
) = VLUPDATEENTRY;

SetLock(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  afs_int32 voloper
) = VLSETLOCK;

ReleaseLock(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  afs_int32 ReleaseType
) = VLRELEASELOCK;

ListEntry(
  IN afs_int32 previous_index,
  OUT afs_int32 *count,
  afs_int32 *next_index,
  vldbentry *entry
) = VLLISTENTRY;

ListAttributes(
  IN VldbListByAttributes *attributes,
  OUT afs_int32 *nentries,
  OUT bulkentries *blkentries
) = VLLISTATTRIBUTES;

LinkedList(
  IN VldbListByAttributes *attributes,
  OUT afs_int32 *nentries,
  OUT vldb_list *linkedentries
) = VLLINKEDLIST;

GetStats(
  OUT vldstats *stats,
  vital_vlheader *vital_header
) = VLGETSTATS;

GetAddrs(
  IN afs_int32 Handle,
  afs_int32 spare2,
  OUT VLCallBack *spare3,
  OUT afs_int32 *nentries,
  OUT bulkaddrs *blkaddrs
) = VLGETADDRS;

ChangeAddr(
  IN afs_uint32 ip1,
  afs_uint32 ip2
) = VLCHANGEADDR;


CreateEntryN(
  IN nvldbentry *newentry
) = VLCREATEENTRYN;

GetEntryByIDN(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  OUT nvldbentry *entry
) = VLGETENTRYBYIDN;

ReplaceEntryN(
  IN afs_uint32 Volid,
  afs_int32 voltype,
  nvldbentry *newentry,
  afs_int32 ReleaseType
) = VLREPLACEENTRYN;

ListEntryN(
  IN afs_int32 previous_index,
  OUT afs_int32 *count,
  afs_int32 *next_index,
  nvldbentry *entry
) = VLLISTENTRYN;

ListAttributesN(
  IN VldbListByAttributes *attributes,
  OUT afs_int32 *nentries,
  OUT nbulkentries *blkentries
) = VLLISTATTRIBUTESN;

LinkedListN(
  IN VldbListByAttributes *attributes,
  OUT afs_int32 *nentries,
  OUT nvldb_list *linkedentries
) = VLLINKEDLISTN;

UpdateEntryByName(
  IN string volumename<VL_MAXNAMELEN>,
  VldbUpdateEntry *UpdateEntry,
  afs_int32 ReleaseType
) = VLUPDATEENTRYBYNAME;

RegisterAddrs(
  IN afsUUID *uuidp,
  IN afs_int32 spare1,
  IN bulkaddrs *ipaddr
) = VLREGADDR;

ListAttributesN2(
  IN VldbListByAttributes *attributes,
  IN string volumename<VL_MAXNAMELEN>,
  IN  afs_int32 startindex,
  OUT afs_int32 *nentries,
  OUT nbulkentries *blkentries,
  OUT afs_int32 *nextstartindex
) = VLLISTATTRIBUTESN2;

%#endif /* !defined(KERNEL) */