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Release 4.16 fs/afs/afs_vl.h

Directory: fs/afs
/* AFS Volume Location Service client interface
 *
 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef AFS_VL_H

#define AFS_VL_H

#include "afs.h"


#define AFS_VL_PORT		7003	
/* volume location service port */

#define VL_SERVICE		52	
/* RxRPC service ID for the Volume Location service */

#define YFS_VL_SERVICE		2503	
/* Service ID for AuriStor upgraded VL service */


enum AFSVL_Operations {
	
VLGETENTRYBYID		= 503,	/* AFS Get VLDB entry by ID */
	
VLGETENTRYBYNAME	= 504,	/* AFS Get VLDB entry by name */
	
VLPROBE			= 514,	/* AFS probe VL service */
	
VLGETENTRYBYIDU		= 526,	/* AFS Get VLDB entry by ID (UUID-variant) */
	
VLGETENTRYBYNAMEU	= 527,	/* AFS Get VLDB entry by name (UUID-variant) */
	
VLGETADDRSU		= 533,	/* AFS Get addrs for fileserver */
	
YVLGETENDPOINTS		= 64002, /* YFS Get endpoints for file/volume server */
	
VLGETCAPABILITIES	= 65537, /* AFS Get server capabilities */
};


enum AFSVL_Errors {
	
AFSVL_IDEXIST 		= 363520,	/* Volume Id entry exists in vl database */
	
AFSVL_IO 		= 363521,	/* I/O related error */
	
AFSVL_NAMEEXIST 	= 363522,	/* Volume name entry exists in vl database */
	
AFSVL_CREATEFAIL 	= 363523,	/* Internal creation failure */
	
AFSVL_NOENT 		= 363524,	/* No such entry */
	
AFSVL_EMPTY 		= 363525,	/* Vl database is empty */
	
AFSVL_ENTDELETED 	= 363526,	/* Entry is deleted (soft delete) */
	
AFSVL_BADNAME 		= 363527,	/* Volume name is illegal */
	
AFSVL_BADINDEX 		= 363528,	/* Index is out of range */
	
AFSVL_BADVOLTYPE 	= 363529,	/* Bad volume type */
	
AFSVL_BADSERVER 	= 363530,	/* Illegal server number (out of range) */
	
AFSVL_BADPARTITION 	= 363531,	/* Bad partition number */
	
AFSVL_REPSFULL 		= 363532,	/* Run out of space for Replication sites */
	
AFSVL_NOREPSERVER 	= 363533,	/* No such Replication server site exists */
	
AFSVL_DUPREPSERVER 	= 363534,	/* Replication site already exists */
	
AFSVL_RWNOTFOUND 	= 363535,	/* Parent R/W entry not found */
	
AFSVL_BADREFCOUNT 	= 363536,	/* Illegal Reference Count number */
	
AFSVL_SIZEEXCEEDED 	= 363537,	/* Vl size for attributes exceeded */
	
AFSVL_BADENTRY 		= 363538,	/* Bad incoming vl entry */
	
AFSVL_BADVOLIDBUMP 	= 363539,	/* Illegal max volid increment */
	
AFSVL_IDALREADYHASHED 	= 363540,	/* RO/BACK id already hashed */
	
AFSVL_ENTRYLOCKED 	= 363541,	/* Vl entry is already locked */
	
AFSVL_BADVOLOPER 	= 363542,	/* Bad volume operation code */
	
AFSVL_BADRELLOCKTYPE 	= 363543,	/* Bad release lock type */
	
AFSVL_RERELEASE 	= 363544,	/* Status report: last release was aborted */
	
AFSVL_BADSERVERFLAG 	= 363545,	/* Invalid replication site server flag */
	
AFSVL_PERM 		= 363546,	/* No permission access */
	
AFSVL_NOMEM 		= 363547,	/* malloc/realloc failed to alloc enough memory */
};


enum {
	
YFS_SERVER_INDEX	= 0,
	
YFS_SERVER_UUID		= 1,
	
YFS_SERVER_ENDPOINT	= 2,
};


enum {
	
YFS_ENDPOINT_IPV4	= 0,
	
YFS_ENDPOINT_IPV6	= 1,
};


#define YFS_MAXENDPOINTS	16

/*
 * maps to "struct vldbentry" in vvl-spec.pdf
 */

struct afs_vldbentry {
	
char		name[65];		/* name of volume (with NUL char) */
	
afs_voltype_t	type;			/* volume type */
	
unsigned	num_servers;		/* num servers that hold instances of this vol */
	
unsigned	clone_id;		/* cloning ID */

	
unsigned	flags;

#define AFS_VLF_RWEXISTS	0x1000		/* R/W volume exists */

#define AFS_VLF_ROEXISTS	0x2000		/* R/O volume exists */

#define AFS_VLF_BACKEXISTS	0x4000		/* backup volume exists */

	
afs_volid_t	volume_ids[3];		/* volume IDs */

	
struct {
		
struct in_addr	addr;		/* server address */
		
unsigned	partition;	/* partition ID on this server */
		
unsigned	flags;		/* server specific flags */

#define AFS_VLSF_NEWREPSITE	0x0001	/* Ignore all 'non-new' servers */

#define AFS_VLSF_ROVOL		0x0002	/* this server holds a R/O instance of the volume */

#define AFS_VLSF_RWVOL		0x0004	/* this server holds a R/W instance of the volume */

#define AFS_VLSF_BACKVOL	0x0008	/* this server holds a backup instance of the volume */

#define AFS_VLSF_UUID		0x0010	/* This server is referred to by its UUID */

#define AFS_VLSF_DONTUSE	0x0020	/* This server ref should be ignored */
	
} servers[8];
};


#define AFS_VLDB_MAXNAMELEN 65



struct afs_ListAddrByAttributes__xdr {
	
__be32			Mask;

#define AFS_VLADDR_IPADDR	0x1	/* Match by ->ipaddr */

#define AFS_VLADDR_INDEX	0x2	/* Match by ->index */

#define AFS_VLADDR_UUID		0x4	/* Match by ->uuid */
	
__be32			ipaddr;
	
__be32			index;
	
__be32			spare;
	
struct afs_uuid__xdr	uuid;
};


struct afs_uvldbentry__xdr {
	
__be32			name[AFS_VLDB_MAXNAMELEN];
	
__be32			nServers;
	
struct afs_uuid__xdr	serverNumber[AFS_NMAXNSERVERS];
	
__be32			serverUnique[AFS_NMAXNSERVERS];
	
__be32			serverPartition[AFS_NMAXNSERVERS];
	
__be32			serverFlags[AFS_NMAXNSERVERS];
	
__be32			volumeId[AFS_MAXTYPES];
	
__be32			cloneId;
	
__be32			flags;
	
__be32			spares1;
	
__be32			spares2;
	
__be32			spares3;
	
__be32			spares4;
	
__be32			spares5;
	
__be32			spares6;
	
__be32			spares7;
	
__be32			spares8;
	
__be32			spares9;
};


struct afs_address_list {
	
refcount_t		usage;
	
unsigned int		version;
	
unsigned int		nr_addrs;
	
struct sockaddr_rxrpc	addrs[];
};

extern void afs_put_address_list(struct afs_address_list *alist);

#endif /* AFS_VL_H */

Overall Contributors

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David Howells498100.00%7100.00%
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