libvirt/src/storage_conf.h
2009-01-15 19:56:05 +00:00

426 lines
12 KiB
C

/*
* storage_conf.h: config handling for storage driver
*
* Copyright (C) 2006-2008 Red Hat, Inc.
* Copyright (C) 2006-2008 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_STORAGE_CONF_H__
#define __VIR_STORAGE_CONF_H__
#include "internal.h"
#include "util.h"
#include "threads.h"
/* Shared structs */
typedef struct _virStoragePerms virStoragePerms;
typedef virStoragePerms *virStoragePermsPtr;
struct _virStoragePerms {
int mode;
int uid;
int gid;
char *label;
};
/* Storage volumes */
/*
* How the volume's data is stored on underlying
* physical devices - can potentially span many
* devices in LVM case.
*/
typedef struct _virStorageVolSourceExtent virStorageVolSourceExtent;
typedef virStorageVolSourceExtent *virStorageVolSourceExtentPtr;
struct _virStorageVolSourceExtent {
char *path;
unsigned long long start;
unsigned long long end;
};
typedef struct _virStorageVolSource virStorageVolSource;
typedef virStorageVolSource *virStorageVolSourcePtr;
struct _virStorageVolSource {
int nextent;
virStorageVolSourceExtentPtr extents;
};
/*
* How the volume appears on the host
*/
typedef struct _virStorageVolTarget virStorageVolTarget;
typedef virStorageVolTarget *virStorageVolTargetPtr;
struct _virStorageVolTarget {
char *path;
int format;
virStoragePerms perms;
};
typedef struct _virStorageVolDef virStorageVolDef;
typedef virStorageVolDef *virStorageVolDefPtr;
struct _virStorageVolDef {
char *name;
char *key;
int type; /* virStorageVolType enum */
unsigned long long allocation;
unsigned long long capacity;
virStorageVolSource source;
virStorageVolTarget target;
};
typedef struct _virStorageVolDefList virStorageVolDefList;
typedef virStorageVolDefList *virStorageVolDefListPtr;
struct _virStorageVolDefList {
unsigned int count;
virStorageVolDefPtr *objs;
};
/* Storage pools */
enum virStoragePoolType {
VIR_STORAGE_POOL_DIR, /* Local directory */
VIR_STORAGE_POOL_FS, /* Local filesystem */
VIR_STORAGE_POOL_NETFS, /* Networked filesystem - eg NFS, GFS, etc */
VIR_STORAGE_POOL_LOGICAL, /* Logical volume groups / volumes */
VIR_STORAGE_POOL_DISK, /* Disk partitions */
VIR_STORAGE_POOL_ISCSI, /* iSCSI targets */
VIR_STORAGE_POOL_SCSI, /* SCSI HBA */
VIR_STORAGE_POOL_LAST,
};
VIR_ENUM_DECL(virStoragePool)
enum virStoragePoolAuthType {
VIR_STORAGE_POOL_AUTH_NONE,
VIR_STORAGE_POOL_AUTH_CHAP,
};
typedef struct _virStoragePoolAuthChap virStoragePoolAuthChap;
typedef virStoragePoolAuthChap *virStoragePoolAuthChapPtr;
struct _virStoragePoolAuthChap {
char *login;
char *passwd;
};
/*
* For remote pools, info on how to reach the host
*/
typedef struct _virStoragePoolSourceHost virStoragePoolSourceHost;
typedef virStoragePoolSourceHost *virStoragePoolSourceHostPtr;
struct _virStoragePoolSourceHost {
char *name;
int port;
int protocol;
};
/*
* Available extents on the underlying storage
*/
typedef struct _virStoragePoolSourceDeviceExtent virStoragePoolSourceDeviceExtent;
typedef virStoragePoolSourceDeviceExtent *virStoragePoolSourceDeviceExtentPtr;
struct _virStoragePoolSourceDeviceExtent {
unsigned long long start;
unsigned long long end;
};
/*
* Pools can be backed by one or more devices, and some
* allow us to track free space on underlying devices.
*/
typedef struct _virStoragePoolSourceDevice virStoragePoolSourceDevice;
typedef virStoragePoolSourceDevice *virStoragePoolSourceDevicePtr;
struct _virStoragePoolSourceDevice {
int nfreeExtent;
virStoragePoolSourceDeviceExtentPtr freeExtents;
char *path;
int format; /* Pool specific source format */
};
typedef struct _virStoragePoolSource virStoragePoolSource;
typedef virStoragePoolSource *virStoragePoolSourcePtr;
struct _virStoragePoolSource {
/* An optional host */
virStoragePoolSourceHost host;
/* And either one or more devices ... */
int ndevice;
virStoragePoolSourceDevicePtr devices;
/* Or a directory */
char *dir;
/* Or an adapter */
char *adapter;
/* Or a name */
char *name;
int authType; /* virStoragePoolAuthType */
union {
virStoragePoolAuthChap chap;
} auth;
int format; /* Pool type specific format such as filesystem type, or lvm version, etc */
};
typedef struct _virStoragePoolTarget virStoragePoolTarget;
typedef virStoragePoolTarget *virStoragePoolTargetPtr;
struct _virStoragePoolTarget {
char *path; /* Optional local filesystem mapping */
virStoragePerms perms; /* Default permissions for volumes */
};
typedef struct _virStoragePoolDef virStoragePoolDef;
typedef virStoragePoolDef *virStoragePoolDefPtr;
struct _virStoragePoolDef {
/* General metadata */
char *name;
unsigned char uuid[VIR_UUID_BUFLEN];
int type; /* virStoragePoolType */
unsigned long long allocation;
unsigned long long capacity;
unsigned long long available;
virStoragePoolSource source;
virStoragePoolTarget target;
};
typedef struct _virStoragePoolObj virStoragePoolObj;
typedef virStoragePoolObj *virStoragePoolObjPtr;
struct _virStoragePoolObj {
virMutex lock;
char *configFile;
char *autostartLink;
int active;
int autostart;
virStoragePoolDefPtr def;
virStoragePoolDefPtr newDef;
virStorageVolDefList volumes;
};
typedef struct _virStoragePoolObjList virStoragePoolObjList;
typedef virStoragePoolObjList *virStoragePoolObjListPtr;
struct _virStoragePoolObjList {
unsigned int count;
virStoragePoolObjPtr *objs;
};
typedef struct _virStorageDriverState virStorageDriverState;
typedef virStorageDriverState *virStorageDriverStatePtr;
struct _virStorageDriverState {
virMutex lock;
virStoragePoolObjList pools;
char *configDir;
char *autostartDir;
};
typedef struct _virStoragePoolSourceList virStoragePoolSourceList;
typedef virStoragePoolSourceList *virStoragePoolSourceListPtr;
struct _virStoragePoolSourceList {
int type;
unsigned int nsources;
virStoragePoolSourcePtr sources;
};
static inline int virStoragePoolObjIsActive(virStoragePoolObjPtr pool) {
return pool->active;
}
#define virStorageReportError(conn, code, fmt...) \
virReportErrorHelper(conn, VIR_FROM_STORAGE, code, __FILE__, \
__FUNCTION__, __LINE__, fmt)
int virStoragePoolLoadAllConfigs(virConnectPtr conn,
virStoragePoolObjListPtr pools,
const char *configDir,
const char *autostartDir);
virStoragePoolObjPtr virStoragePoolObjFindByUUID(virStoragePoolObjListPtr pools,
const unsigned char *uuid);
virStoragePoolObjPtr virStoragePoolObjFindByName(virStoragePoolObjListPtr pools,
const char *name);
virStorageVolDefPtr virStorageVolDefFindByKey(virStoragePoolObjPtr pool,
const char *key);
virStorageVolDefPtr virStorageVolDefFindByPath(virStoragePoolObjPtr pool,
const char *path);
virStorageVolDefPtr virStorageVolDefFindByName(virStoragePoolObjPtr pool,
const char *name);
void virStoragePoolObjClearVols(virStoragePoolObjPtr pool);
virStoragePoolDefPtr virStoragePoolDefParse(virConnectPtr conn,
const char *xml,
const char *filename);
char *virStoragePoolDefFormat(virConnectPtr conn,
virStoragePoolDefPtr def);
virStorageVolDefPtr virStorageVolDefParse(virConnectPtr conn,
virStoragePoolDefPtr pool,
const char *xml,
const char *filename);
char *virStorageVolDefFormat(virConnectPtr conn,
virStoragePoolDefPtr pool,
virStorageVolDefPtr def);
virStoragePoolObjPtr virStoragePoolObjAssignDef(virConnectPtr conn,
virStoragePoolObjListPtr pools,
virStoragePoolDefPtr def);
int virStoragePoolObjSaveDef(virConnectPtr conn,
virStorageDriverStatePtr driver,
virStoragePoolObjPtr pool,
virStoragePoolDefPtr def);
int virStoragePoolObjDeleteDef(virConnectPtr conn,
virStoragePoolObjPtr pool);
void virStorageVolDefFree(virStorageVolDefPtr def);
void virStoragePoolSourceFree(virStoragePoolSourcePtr source);
void virStoragePoolDefFree(virStoragePoolDefPtr def);
void virStoragePoolObjFree(virStoragePoolObjPtr pool);
void virStoragePoolObjListFree(virStoragePoolObjListPtr pools);
void virStoragePoolObjRemove(virStoragePoolObjListPtr pools,
virStoragePoolObjPtr pool);
char *virStoragePoolSourceListFormat(virConnectPtr conn,
virStoragePoolSourceListPtr def);
void virStoragePoolObjLock(virStoragePoolObjPtr obj);
void virStoragePoolObjUnlock(virStoragePoolObjPtr obj);
enum virStoragePoolFormatFileSystem {
VIR_STORAGE_POOL_FS_AUTO = 0,
VIR_STORAGE_POOL_FS_EXT2,
VIR_STORAGE_POOL_FS_EXT3,
VIR_STORAGE_POOL_FS_EXT4,
VIR_STORAGE_POOL_FS_UFS,
VIR_STORAGE_POOL_FS_ISO,
VIR_STORAGE_POOL_FS_UDF,
VIR_STORAGE_POOL_FS_GFS,
VIR_STORAGE_POOL_FS_GFS2,
VIR_STORAGE_POOL_FS_VFAT,
VIR_STORAGE_POOL_FS_HFSPLUS,
VIR_STORAGE_POOL_FS_XFS,
VIR_STORAGE_POOL_FS_LAST,
};
VIR_ENUM_DECL(virStoragePoolFormatFileSystem)
enum virStoragePoolFormatFileSystemNet {
VIR_STORAGE_POOL_NETFS_AUTO = 0,
VIR_STORAGE_POOL_NETFS_NFS,
VIR_STORAGE_POOL_NETFS_LAST,
};
VIR_ENUM_DECL(virStoragePoolFormatFileSystemNet)
enum virStoragePoolFormatDisk {
VIR_STORAGE_POOL_DISK_UNKNOWN = 0,
VIR_STORAGE_POOL_DISK_DOS = 1,
VIR_STORAGE_POOL_DISK_DVH,
VIR_STORAGE_POOL_DISK_GPT,
VIR_STORAGE_POOL_DISK_MAC,
VIR_STORAGE_POOL_DISK_BSD,
VIR_STORAGE_POOL_DISK_PC98,
VIR_STORAGE_POOL_DISK_SUN,
VIR_STORAGE_POOL_DISK_LVM2,
VIR_STORAGE_POOL_DISK_LAST,
};
VIR_ENUM_DECL(virStoragePoolFormatDisk)
enum virStoragePoolFormatLogical {
VIR_STORAGE_POOL_LOGICAL_UNKNOWN = 0,
VIR_STORAGE_POOL_LOGICAL_LVM2 = 1,
VIR_STORAGE_POOL_LOGICAL_LAST,
};
VIR_ENUM_DECL(virStoragePoolFormatLogical)
enum virStorageVolFormatFileSystem {
VIR_STORAGE_VOL_FILE_RAW = 0,
VIR_STORAGE_VOL_FILE_DIR,
VIR_STORAGE_VOL_FILE_BOCHS,
VIR_STORAGE_VOL_FILE_CLOOP,
VIR_STORAGE_VOL_FILE_COW,
VIR_STORAGE_VOL_FILE_DMG,
VIR_STORAGE_VOL_FILE_ISO,
VIR_STORAGE_VOL_FILE_QCOW,
VIR_STORAGE_VOL_FILE_QCOW2,
VIR_STORAGE_VOL_FILE_VMDK,
VIR_STORAGE_VOL_FILE_VPC,
VIR_STORAGE_VOL_FILE_LAST,
};
VIR_ENUM_DECL(virStorageVolFormatFileSystem)
/*
* XXX these are basically partition types.
*
* fdisk has a bazillion partition ID types
* parted has practically none, and splits the
* info across 3 different attributes.
*
* So this is a semi-generic set
*/
enum virStorageVolFormatDisk {
VIR_STORAGE_VOL_DISK_NONE = 0,
VIR_STORAGE_VOL_DISK_LINUX,
VIR_STORAGE_VOL_DISK_FAT16,
VIR_STORAGE_VOL_DISK_FAT32,
VIR_STORAGE_VOL_DISK_LINUX_SWAP,
VIR_STORAGE_VOL_DISK_LINUX_LVM,
VIR_STORAGE_VOL_DISK_LINUX_RAID,
VIR_STORAGE_VOL_DISK_EXTENDED,
VIR_STORAGE_VOL_DISK_LAST,
};
VIR_ENUM_DECL(virStorageVolFormatDisk)
#endif /* __VIR_STORAGE_CONF_H__ */