libvirt/src/driver.h

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/*
* driver.h: description of the set of interfaces provided by a
* entry point to the virtualization engine
*/
#ifndef __VIR_DRIVER_H__
# define __VIR_DRIVER_H__
# include "config.h"
# include <libxml/uri.h>
# include "internal.h"
/*
* List of registered drivers numbers
*/
typedef enum {
VIR_DRV_XEN_UNIFIED = 1,
VIR_DRV_TEST = 2,
VIR_DRV_QEMU = 3,
VIR_DRV_REMOTE = 4,
VIR_DRV_OPENVZ = 5,
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VIR_DRV_LXC = 6,
VIR_DRV_UML = 7,
VIR_DRV_VBOX = 8,
VIR_DRV_ONE = 9,
VIR_DRV_ESX = 10,
VIR_DRV_PHYP = 11,
VIR_DRV_XENAPI = 12,
VIR_DRV_VMWARE = 13,
VIR_DRV_LIBXL = 14,
} virDrvNo;
/* Status codes returned from driver open call. */
typedef enum {
/* Opened successfully. */
VIR_DRV_OPEN_SUCCESS = 0,
/* 'name' is not for us. */
VIR_DRV_OPEN_DECLINED = -1,
/* 'name' is for us, but there was some error. virConnectOpen will
* return an error rather than continue probing the other drivers.
*/
VIR_DRV_OPEN_ERROR = -2,
} virDrvOpenStatus;
/* Internal feature-detection macro. Don't call drv->supports_feature
* directly if you don't have to, because it may be NULL, use this macro
* instead.
*
* Note that this treats a possible error returned by drv->supports_feature
* the same as not supported. If you care about the error, call
* drv->supports_feature directly.
*
* Returns:
* != 0 Feature is supported.
* 0 Feature is not supported.
*/
# define VIR_DRV_SUPPORTS_FEATURE(drv,conn,feature) \
((drv)->supports_feature ? \
(drv)->supports_feature((conn), (feature)) > 0 : 0)
typedef virDrvOpenStatus
(*virDrvOpen) (virConnectPtr conn,
virConnectAuthPtr auth,
int flags);
typedef int
(*virDrvClose) (virConnectPtr conn);
typedef int
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(*virDrvDrvSupportsFeature) (virConnectPtr conn, int feature);
typedef const char *
(*virDrvGetType) (virConnectPtr conn);
typedef int
(*virDrvGetVersion) (virConnectPtr conn,
unsigned long *hvVer);
typedef int
(*virDrvGetLibVersion) (virConnectPtr conn,
unsigned long *libVer);
typedef char *
(*virDrvGetHostname) (virConnectPtr conn);
typedef char *
(*virDrvGetURI) (virConnectPtr conn);
typedef char *
(*virDrvGetSysinfo) (virConnectPtr conn,
unsigned int flags);
typedef int
(*virDrvGetMaxVcpus) (virConnectPtr conn,
const char *type);
typedef int
(*virDrvNodeGetInfo) (virConnectPtr conn,
virNodeInfoPtr info);
typedef char *
(*virDrvGetCapabilities) (virConnectPtr conn);
typedef int
(*virDrvListDomains) (virConnectPtr conn,
int *ids,
int maxids);
typedef int
(*virDrvNumOfDomains) (virConnectPtr conn);
typedef virDomainPtr
(*virDrvDomainCreateXML) (virConnectPtr conn,
const char *xmlDesc,
unsigned int flags);
typedef virDomainPtr
(*virDrvDomainLookupByID) (virConnectPtr conn,
int id);
typedef virDomainPtr
(*virDrvDomainLookupByUUID) (virConnectPtr conn,
const unsigned char *uuid);
typedef virDomainPtr
(*virDrvDomainLookupByName) (virConnectPtr conn,
const char *name);
typedef int
(*virDrvDomainSuspend) (virDomainPtr domain);
typedef int
(*virDrvDomainResume) (virDomainPtr domain);
typedef int
(*virDrvDomainShutdown) (virDomainPtr domain);
typedef int
(*virDrvDomainReboot) (virDomainPtr domain,
unsigned int flags);
typedef int
(*virDrvDomainDestroy) (virDomainPtr domain);
typedef char *
(*virDrvDomainGetOSType) (virDomainPtr domain);
typedef unsigned long
(*virDrvDomainGetMaxMemory) (virDomainPtr domain);
typedef int
(*virDrvDomainSetMaxMemory) (virDomainPtr domain,
unsigned long memory);
typedef int
(*virDrvDomainSetMemory) (virDomainPtr domain,
unsigned long memory);
typedef int
(*virDrvDomainSetMemoryFlags) (virDomainPtr domain,
unsigned long memory,
unsigned int flags);
typedef int
(*virDrvDomainSetMemoryParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
unsigned int flags);
typedef int
(*virDrvDomainGetMemoryParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int *nparams,
unsigned int flags);
typedef int
(*virDrvDomainSetBlkioParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
unsigned int flags);
typedef int
(*virDrvDomainGetBlkioParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int *nparams,
unsigned int flags);
typedef int
(*virDrvDomainGetInfo) (virDomainPtr domain,
virDomainInfoPtr info);
typedef int
(*virDrvDomainGetState) (virDomainPtr domain,
int *state,
int *reason,
unsigned int flags);
typedef int
(*virDrvDomainGetControlInfo) (virDomainPtr domain,
virDomainControlInfoPtr info,
unsigned int flags);
typedef int
(*virDrvDomainSave) (virDomainPtr domain,
const char *to);
typedef int
(*virDrvDomainRestore) (virConnectPtr conn,
const char *from);
typedef int
(*virDrvDomainCoreDump) (virDomainPtr domain,
const char *to,
int flags);
typedef char *
(*virDrvDomainScreenshot) (virDomainPtr domain,
virStreamPtr stream,
unsigned int screen,
unsigned int flags);
typedef char *
(*virDrvDomainGetXMLDesc) (virDomainPtr dom,
int flags);
2009-05-21 13:46:35 +00:00
typedef char *
(*virDrvConnectDomainXMLFromNative) (virConnectPtr conn,
const char *nativeFormat,
const char *nativeConfig,
unsigned int flags);
typedef char *
(*virDrvConnectDomainXMLToNative) (virConnectPtr conn,
const char *nativeFormat,
const char *domainXml,
unsigned int flags);
typedef int
(*virDrvListDefinedDomains) (virConnectPtr conn,
char **const names,
int maxnames);
typedef int
(*virDrvNumOfDefinedDomains) (virConnectPtr conn);
typedef int
(*virDrvDomainCreate) (virDomainPtr dom);
typedef int
(*virDrvDomainCreateWithFlags) (virDomainPtr dom,
unsigned int flags);
typedef virDomainPtr
(*virDrvDomainDefineXML) (virConnectPtr conn,
const char *xml);
typedef int
(*virDrvDomainUndefine) (virDomainPtr dom);
typedef int
(*virDrvDomainSetVcpus) (virDomainPtr domain,
unsigned int nvcpus);
typedef int
(*virDrvDomainSetVcpusFlags) (virDomainPtr domain,
unsigned int nvcpus,
unsigned int flags);
typedef int
(*virDrvDomainGetVcpusFlags) (virDomainPtr domain,
unsigned int flags);
typedef int
(*virDrvDomainPinVcpu) (virDomainPtr domain,
unsigned int vcpu,
unsigned char *cpumap,
int maplen);
typedef int
(*virDrvDomainPinVcpuFlags) (virDomainPtr domain,
unsigned int vcpu,
unsigned char *cpumap,
int maplen,
unsigned int flags);
typedef int
(*virDrvDomainGetVcpupinInfo) (virDomainPtr domain,
int ncpumaps,
unsigned char *cpumaps,
int maplen,
unsigned int flags);
typedef int
(*virDrvDomainGetVcpus) (virDomainPtr domain,
virVcpuInfoPtr info,
int maxinfo,
unsigned char *cpumaps,
int maplen);
typedef int
(*virDrvDomainGetMaxVcpus) (virDomainPtr domain);
typedef int
(*virDrvDomainGetSecurityLabel) (virDomainPtr domain,
virSecurityLabelPtr seclabel);
typedef int
(*virDrvNodeGetSecurityModel) (virConnectPtr conn,
virSecurityModelPtr secmodel);
typedef int
(*virDrvDomainAttachDevice) (virDomainPtr domain,
const char *xml);
typedef int
(*virDrvDomainAttachDeviceFlags) (virDomainPtr domain,
const char *xml,
unsigned int flags);
typedef int
(*virDrvDomainDetachDevice) (virDomainPtr domain,
const char *xml);
typedef int
(*virDrvDomainDetachDeviceFlags) (virDomainPtr domain,
const char *xml,
unsigned int flags);
typedef int
(*virDrvDomainUpdateDeviceFlags) (virDomainPtr domain,
const char *xml,
unsigned int flags);
typedef int
(*virDrvDomainGetAutostart) (virDomainPtr domain,
int *autostart);
typedef int
(*virDrvDomainSetAutostart) (virDomainPtr domain,
int autostart);
typedef char *
(*virDrvDomainGetSchedulerType) (virDomainPtr domain,
int *nparams);
typedef int
(*virDrvDomainGetSchedulerParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int *nparams);
typedef int
(*virDrvDomainGetSchedulerParametersFlags)
(virDomainPtr domain,
virTypedParameterPtr params,
int *nparams,
unsigned int flags);
typedef int
(*virDrvDomainSetSchedulerParameters)
(virDomainPtr domain,
virTypedParameterPtr params,
int nparams);
typedef int
(*virDrvDomainSetSchedulerParametersFlags)
(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
unsigned int flags);
typedef int
(*virDrvDomainBlockStats)
(virDomainPtr domain,
const char *path,
struct _virDomainBlockStats *stats);
typedef int
(*virDrvDomainInterfaceStats)
(virDomainPtr domain,
const char *path,
struct _virDomainInterfaceStats *stats);
typedef int
(*virDrvDomainMemoryStats)
(virDomainPtr domain,
struct _virDomainMemoryStat *stats,
unsigned int nr_stats);
typedef int
(*virDrvDomainBlockPeek)
(virDomainPtr domain,
const char *path,
unsigned long long offset, size_t size,
void *buffer,
unsigned int flags);
typedef int
(*virDrvDomainMemoryPeek)
(virDomainPtr domain,
unsigned long long start, size_t size,
void *buffer,
unsigned int flags);
typedef int
(*virDrvDomainGetBlockInfo)
(virDomainPtr domain,
const char *path,
virDomainBlockInfoPtr info,
unsigned int flags);
typedef int
(*virDrvDomainMigratePrepare)
(virConnectPtr dconn,
char **cookie,
int *cookielen,
const char *uri_in,
char **uri_out,
unsigned long flags,
const char *dname,
unsigned long resource);
typedef int
(*virDrvDomainMigratePerform)
(virDomainPtr domain,
const char *cookie,
int cookielen,
const char *uri,
unsigned long flags,
const char *dname,
unsigned long resource);
typedef virDomainPtr
(*virDrvDomainMigrateFinish)
(virConnectPtr dconn,
const char *dname,
const char *cookie,
int cookielen,
const char *uri,
unsigned long flags);
typedef struct _virDriver virDriver;
typedef virDriver *virDriverPtr;
typedef int
(*virDrvNodeGetCPUStats)
(virConnectPtr conn,
int cpuNum,
virCPUStatsPtr params,
int *nparams,
unsigned int flags);
typedef int
(*virDrvNodeGetMemoryStats)
(virConnectPtr conn,
int cellNum,
virMemoryStatsPtr params,
int *nparams,
unsigned int flags);
typedef int
(*virDrvNodeGetCellsFreeMemory)
(virConnectPtr conn,
unsigned long long *freeMems,
int startCell,
int maxCells);
typedef unsigned long long
(*virDrvNodeGetFreeMemory)
(virConnectPtr conn);
typedef int
(*virDrvDomainEventRegister)
(virConnectPtr conn,
virConnectDomainEventCallback cb,
void *opaque,
virFreeCallback freecb);
typedef int
(*virDrvDomainEventDeregister)
(virConnectPtr conn,
virConnectDomainEventCallback cb);
typedef int
(*virDrvDomainMigratePrepare2)
(virConnectPtr dconn,
char **cookie,
int *cookielen,
const char *uri_in,
char **uri_out,
unsigned long flags,
const char *dname,
unsigned long resource,
const char *dom_xml);
typedef virDomainPtr
(*virDrvDomainMigrateFinish2)
(virConnectPtr dconn,
const char *dname,
const char *cookie,
int cookielen,
const char *uri,
unsigned long flags,
int retcode);
typedef int
(*virDrvNodeDeviceDettach)
(virNodeDevicePtr dev);
typedef int
(*virDrvNodeDeviceReAttach)
(virNodeDevicePtr dev);
typedef int
(*virDrvNodeDeviceReset)
(virNodeDevicePtr dev);
typedef int
(*virDrvDomainMigratePrepareTunnel)
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
(virConnectPtr dconn,
virStreamPtr st,
unsigned long flags,
const char *dname,
unsigned long resource,
const char *dom_xml);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef int
(*virDrvConnectIsEncrypted)(virConnectPtr conn);
typedef int
(*virDrvConnectIsSecure)(virConnectPtr conn);
typedef int
(*virDrvDomainIsActive)(virDomainPtr dom);
typedef int
(*virDrvDomainIsPersistent)(virDomainPtr dom);
typedef int
(*virDrvDomainIsUpdated)(virDomainPtr dom);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef int
(*virDrvCompareCPU)(virConnectPtr conn,
const char *cpu,
unsigned int flags);
typedef char *
(*virDrvBaselineCPU)(virConnectPtr conn,
const char **xmlCPUs,
unsigned int ncpus,
unsigned int flags);
typedef int
(*virDrvDomainGetJobInfo)(virDomainPtr domain,
virDomainJobInfoPtr info);
typedef int
(*virDrvDomainAbortJob)(virDomainPtr domain);
typedef int
(*virDrvDomainMigrateSetMaxDowntime)(virDomainPtr domain,
unsigned long long downtime,
unsigned int flags);
typedef int
(*virDrvDomainMigrateSetMaxSpeed)(virDomainPtr domain,
unsigned long bandwidth,
unsigned int flags);
Introduce a new public API for domain events The current API for domain events has a number of problems - Only allows for domain lifecycle change events - Does not allow the same callback to be registered multiple times - Does not allow filtering of events to a specific domain This introduces a new more general purpose domain events API typedef enum { VIR_DOMAIN_EVENT_ID_LIFECYCLE = 0, /* virConnectDomainEventCallback */ ...more events later.. } int virConnectDomainEventRegisterAny(virConnectPtr conn, virDomainPtr dom, /* Optional, to filter */ int eventID, virConnectDomainEventGenericCallback cb, void *opaque, virFreeCallback freecb); int virConnectDomainEventDeregisterAny(virConnectPtr conn, int callbackID); Since different event types can received different data in the callback, the API is defined with a generic callback. Specific events will each have a custom signature for their callback. Thus when registering an event it is neccessary to cast the callback to the generic signature eg int myDomainEventCallback(virConnectPtr conn, virDomainPtr dom, int event, int detail, void *opaque) { ... } virConnectDomainEventRegisterAny(conn, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(myDomainEventCallback) NULL, NULL); The VIR_DOMAIN_EVENT_CALLBACK() macro simply does a "bad" cast to the generic signature * include/libvirt/libvirt.h.in: Define new APIs for registering domain events * src/driver.h: Internal driver entry points for new events APIs * src/libvirt.c: Wire up public API to driver API for events APIs * src/libvirt_public.syms: Export new APIs * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c, src/xenapi/xenapi_driver.c: Stub out new API entries
2010-03-18 13:01:48 +00:00
typedef int
(*virDrvDomainEventRegisterAny)(virConnectPtr conn,
virDomainPtr dom,
int eventID,
virConnectDomainEventGenericCallback cb,
void *opaque,
virFreeCallback freecb);
typedef int
(*virDrvDomainEventDeregisterAny)(virConnectPtr conn,
int callbackID);
typedef int
(*virDrvDomainManagedSave)(virDomainPtr domain, unsigned int flags);
typedef int
(*virDrvDomainHasManagedSaveImage)(virDomainPtr domain, unsigned int flags);
typedef int
(*virDrvDomainManagedSaveRemove)(virDomainPtr domain, unsigned int flags);
typedef virDomainSnapshotPtr
(*virDrvDomainSnapshotCreateXML)(virDomainPtr domain,
const char *xmlDesc,
unsigned int flags);
typedef char *
(*virDrvDomainSnapshotGetXMLDesc)(virDomainSnapshotPtr snapshot,
unsigned int flags);
typedef int
(*virDrvDomainSnapshotNum)(virDomainPtr domain, unsigned int flags);
typedef int
(*virDrvDomainSnapshotListNames)(virDomainPtr domain, char **names,
int nameslen,
unsigned int flags);
typedef virDomainSnapshotPtr
(*virDrvDomainSnapshotLookupByName)(virDomainPtr domain,
const char *name,
unsigned int flags);
typedef int
(*virDrvDomainHasCurrentSnapshot)(virDomainPtr domain, unsigned int flags);
typedef virDomainSnapshotPtr
(*virDrvDomainSnapshotCurrent)(virDomainPtr domain,
unsigned int flags);
typedef int
(*virDrvDomainRevertToSnapshot)(virDomainSnapshotPtr snapshot,
unsigned int flags);
typedef int
(*virDrvDomainSnapshotDelete)(virDomainSnapshotPtr snapshot,
unsigned int flags);
typedef int
(*virDrvDomainQemuMonitorCommand)(virDomainPtr domain, const char *cmd,
char **result, unsigned int flags);
typedef int
(*virDrvDomainOpenConsole)(virDomainPtr dom,
const char *devname,
virStreamPtr st,
unsigned int flags);
2011-05-10 08:26:02 +00:00
typedef int
(*virDrvDomainInjectNMI)(virDomainPtr dom, unsigned int flags);
typedef int
(*virDrvDomainSendKey)(virDomainPtr dom, unsigned int codeset,
unsigned int holdtime,
unsigned int *keycodes,
int nkeycodes,
unsigned int flags);
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
typedef char *
(*virDrvDomainMigrateBegin3)
(virDomainPtr domain,
const char *xmlin,
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
char **cookieout,
int *cookieoutlen,
unsigned long flags,
const char *dname,
unsigned long resource);
typedef int
(*virDrvDomainMigratePrepare3)
(virConnectPtr dconn,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *uri_in,
char **uri_out,
unsigned long flags,
const char *dname,
unsigned long resource,
const char *dom_xml);
typedef int
(*virDrvDomainMigratePrepareTunnel3)
(virConnectPtr dconn,
virStreamPtr st,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
unsigned long flags,
const char *dname,
unsigned long resource,
const char *dom_xml);
typedef int
(*virDrvDomainMigratePerform3)
(virDomainPtr dom,
const char *xmlin,
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *dconnuri,
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
const char *uri,
unsigned long flags,
const char *dname,
unsigned long resource);
typedef virDomainPtr
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
(*virDrvDomainMigrateFinish3)
(virConnectPtr dconn,
const char *dname,
const char *cookiein,
int cookieinlen,
char **cookieout,
int *cookieoutlen,
const char *dconnuri,
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
const char *uri,
unsigned long flags,
int cancelled);
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
typedef int
(*virDrvDomainMigrateConfirm3)
(virDomainPtr domain,
const char *cookiein,
int cookieinlen,
unsigned long flags,
int cancelled);
/**
* _virDriver:
*
* Structure associated to a virtualization driver, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - no
* - name
* - open
* - close
*/
struct _virDriver {
int no; /* the number virDrvNo */
const char * name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
2008-11-17 11:03:25 +00:00
virDrvDrvSupportsFeature supports_feature;
virDrvGetType type;
virDrvGetVersion version;
virDrvGetLibVersion libvirtVersion;
virDrvGetHostname getHostname;
virDrvGetSysinfo getSysinfo;
virDrvGetMaxVcpus getMaxVcpus;
virDrvNodeGetInfo nodeGetInfo;
virDrvGetCapabilities getCapabilities;
virDrvListDomains listDomains;
virDrvNumOfDomains numOfDomains;
virDrvDomainCreateXML domainCreateXML;
virDrvDomainLookupByID domainLookupByID;
virDrvDomainLookupByUUID domainLookupByUUID;
virDrvDomainLookupByName domainLookupByName;
virDrvDomainSuspend domainSuspend;
virDrvDomainResume domainResume;
virDrvDomainShutdown domainShutdown;
virDrvDomainReboot domainReboot;
virDrvDomainDestroy domainDestroy;
virDrvDomainGetOSType domainGetOSType;
virDrvDomainGetMaxMemory domainGetMaxMemory;
virDrvDomainSetMaxMemory domainSetMaxMemory;
virDrvDomainSetMemory domainSetMemory;
virDrvDomainSetMemoryFlags domainSetMemoryFlags;
virDrvDomainSetMemoryParameters domainSetMemoryParameters;
virDrvDomainGetMemoryParameters domainGetMemoryParameters;
virDrvDomainSetBlkioParameters domainSetBlkioParameters;
virDrvDomainGetBlkioParameters domainGetBlkioParameters;
virDrvDomainGetInfo domainGetInfo;
virDrvDomainGetState domainGetState;
virDrvDomainGetControlInfo domainGetControlInfo;
virDrvDomainSave domainSave;
virDrvDomainRestore domainRestore;
virDrvDomainCoreDump domainCoreDump;
virDrvDomainScreenshot domainScreenshot;
virDrvDomainSetVcpus domainSetVcpus;
virDrvDomainSetVcpusFlags domainSetVcpusFlags;
virDrvDomainGetVcpusFlags domainGetVcpusFlags;
virDrvDomainPinVcpu domainPinVcpu;
virDrvDomainPinVcpuFlags domainPinVcpuFlags;
virDrvDomainGetVcpupinInfo domainGetVcpupinInfo;
virDrvDomainGetVcpus domainGetVcpus;
virDrvDomainGetMaxVcpus domainGetMaxVcpus;
virDrvDomainGetSecurityLabel domainGetSecurityLabel;
virDrvNodeGetSecurityModel nodeGetSecurityModel;
virDrvDomainGetXMLDesc domainGetXMLDesc;
2009-05-21 13:46:35 +00:00
virDrvConnectDomainXMLFromNative domainXMLFromNative;
virDrvConnectDomainXMLToNative domainXMLToNative;
virDrvListDefinedDomains listDefinedDomains;
virDrvNumOfDefinedDomains numOfDefinedDomains;
virDrvDomainCreate domainCreate;
virDrvDomainCreateWithFlags domainCreateWithFlags;
virDrvDomainDefineXML domainDefineXML;
virDrvDomainUndefine domainUndefine;
virDrvDomainAttachDevice domainAttachDevice;
virDrvDomainAttachDeviceFlags domainAttachDeviceFlags;
virDrvDomainDetachDevice domainDetachDevice;
virDrvDomainDetachDeviceFlags domainDetachDeviceFlags;
virDrvDomainUpdateDeviceFlags domainUpdateDeviceFlags;
virDrvDomainGetAutostart domainGetAutostart;
virDrvDomainSetAutostart domainSetAutostart;
virDrvDomainGetSchedulerType domainGetSchedulerType;
virDrvDomainGetSchedulerParameters domainGetSchedulerParameters;
virDrvDomainGetSchedulerParametersFlags domainGetSchedulerParametersFlags;
virDrvDomainSetSchedulerParameters domainSetSchedulerParameters;
virDrvDomainSetSchedulerParametersFlags domainSetSchedulerParametersFlags;
virDrvDomainMigratePrepare domainMigratePrepare;
virDrvDomainMigratePerform domainMigratePerform;
virDrvDomainMigrateFinish domainMigrateFinish;
virDrvDomainBlockStats domainBlockStats;
virDrvDomainInterfaceStats domainInterfaceStats;
virDrvDomainMemoryStats domainMemoryStats;
virDrvDomainBlockPeek domainBlockPeek;
virDrvDomainMemoryPeek domainMemoryPeek;
virDrvDomainGetBlockInfo domainGetBlockInfo;
virDrvNodeGetCPUStats nodeGetCPUStats;
virDrvNodeGetMemoryStats nodeGetMemoryStats;
virDrvNodeGetCellsFreeMemory nodeGetCellsFreeMemory;
virDrvNodeGetFreeMemory nodeGetFreeMemory;
virDrvDomainEventRegister domainEventRegister;
virDrvDomainEventDeregister domainEventDeregister;
virDrvDomainMigratePrepare2 domainMigratePrepare2;
virDrvDomainMigrateFinish2 domainMigrateFinish2;
virDrvNodeDeviceDettach nodeDeviceDettach;
virDrvNodeDeviceReAttach nodeDeviceReAttach;
virDrvNodeDeviceReset nodeDeviceReset;
virDrvDomainMigratePrepareTunnel domainMigratePrepareTunnel;
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
virDrvConnectIsEncrypted isEncrypted;
virDrvConnectIsSecure isSecure;
virDrvDomainIsActive domainIsActive;
virDrvDomainIsPersistent domainIsPersistent;
virDrvDomainIsUpdated domainIsUpdated;
virDrvCompareCPU cpuCompare;
virDrvBaselineCPU cpuBaseline;
virDrvDomainGetJobInfo domainGetJobInfo;
virDrvDomainAbortJob domainAbortJob;
virDrvDomainMigrateSetMaxDowntime domainMigrateSetMaxDowntime;
virDrvDomainMigrateSetMaxSpeed domainMigrateSetMaxSpeed;
Introduce a new public API for domain events The current API for domain events has a number of problems - Only allows for domain lifecycle change events - Does not allow the same callback to be registered multiple times - Does not allow filtering of events to a specific domain This introduces a new more general purpose domain events API typedef enum { VIR_DOMAIN_EVENT_ID_LIFECYCLE = 0, /* virConnectDomainEventCallback */ ...more events later.. } int virConnectDomainEventRegisterAny(virConnectPtr conn, virDomainPtr dom, /* Optional, to filter */ int eventID, virConnectDomainEventGenericCallback cb, void *opaque, virFreeCallback freecb); int virConnectDomainEventDeregisterAny(virConnectPtr conn, int callbackID); Since different event types can received different data in the callback, the API is defined with a generic callback. Specific events will each have a custom signature for their callback. Thus when registering an event it is neccessary to cast the callback to the generic signature eg int myDomainEventCallback(virConnectPtr conn, virDomainPtr dom, int event, int detail, void *opaque) { ... } virConnectDomainEventRegisterAny(conn, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(myDomainEventCallback) NULL, NULL); The VIR_DOMAIN_EVENT_CALLBACK() macro simply does a "bad" cast to the generic signature * include/libvirt/libvirt.h.in: Define new APIs for registering domain events * src/driver.h: Internal driver entry points for new events APIs * src/libvirt.c: Wire up public API to driver API for events APIs * src/libvirt_public.syms: Export new APIs * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c, src/xenapi/xenapi_driver.c: Stub out new API entries
2010-03-18 13:01:48 +00:00
virDrvDomainEventRegisterAny domainEventRegisterAny;
virDrvDomainEventDeregisterAny domainEventDeregisterAny;
virDrvDomainManagedSave domainManagedSave;
virDrvDomainHasManagedSaveImage domainHasManagedSaveImage;
virDrvDomainManagedSaveRemove domainManagedSaveRemove;
virDrvDomainSnapshotCreateXML domainSnapshotCreateXML;
virDrvDomainSnapshotGetXMLDesc domainSnapshotGetXMLDesc;
virDrvDomainSnapshotNum domainSnapshotNum;
virDrvDomainSnapshotListNames domainSnapshotListNames;
virDrvDomainSnapshotLookupByName domainSnapshotLookupByName;
virDrvDomainHasCurrentSnapshot domainHasCurrentSnapshot;
virDrvDomainSnapshotCurrent domainSnapshotCurrent;
virDrvDomainRevertToSnapshot domainRevertToSnapshot;
virDrvDomainSnapshotDelete domainSnapshotDelete;
virDrvDomainQemuMonitorCommand qemuDomainMonitorCommand;
virDrvDomainOpenConsole domainOpenConsole;
2011-05-10 08:26:02 +00:00
virDrvDomainInjectNMI domainInjectNMI;
Introduce yet another migration version in API. Migration just seems to go from bad to worse. We already had to introduce a second migration protocol when adding the QEMU driver, since the one from Xen was insufficiently flexible to cope with passing the data the QEMU driver required. It turns out that this protocol still has some flaws that we need to address. The current sequence is * Src: DumpXML - Generate XML to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Kill off VM if successful, resume if failed * Dst: Finish - Wait for recv completion and check status - Kill off VM if unsuccessful The problems with this are: - Since the first step is a generic 'DumpXML' call, we can't add in other migration specific data. eg, we can't include any VM lease data from lock manager plugins - Since the first step is a generic 'DumpXML' call, we can't emit any 'migration begin' event on the source, or have any hook that runs right at the start of the process - Since there is no final step on the source, if the Finish method fails to receive all migration data & has to kill the VM, then there's no way to resume the original VM on the source This patch attempts to introduce a version 3 that uses the improved 5 step sequence * Src: Begin - Generate XML to pass to dst - Generate optional cookie to pass to dst * Dst: Prepare - Get ready to accept incoming VM - Generate optional cookie to pass to src * Src: Perform - Start migration and wait for send completion - Generate optional cookie to pass to dst * Dst: Finish - Wait for recv completion and check status - Kill off VM if failed, resume if success - Generate optional cookie to pass to src * Src: Confirm - Kill off VM if success, resume if failed The API is designed to allow both input and output cookies in all methods where applicable. This lets us pass around arbitrary extra driver specific data between src & dst during migration. Combined with the extra 'Begin' method this lets us pass lease information from source to dst at the start of migration Moving the killing of the source VM out of Perform and into Confirm, means we can now recover if the dst host can't successfully Finish receiving migration data.
2010-11-02 12:43:44 +00:00
virDrvDomainMigrateBegin3 domainMigrateBegin3;
virDrvDomainMigratePrepare3 domainMigratePrepare3;
virDrvDomainMigratePrepareTunnel3 domainMigratePrepareTunnel3;
virDrvDomainMigratePerform3 domainMigratePerform3;
virDrvDomainMigrateFinish3 domainMigrateFinish3;
virDrvDomainMigrateConfirm3 domainMigrateConfirm3;
virDrvDomainSendKey domainSendKey;
};
typedef int
(*virDrvNumOfNetworks) (virConnectPtr conn);
typedef int
(*virDrvListNetworks) (virConnectPtr conn,
char **const names,
int maxnames);
typedef int
(*virDrvNumOfDefinedNetworks) (virConnectPtr conn);
typedef int
(*virDrvListDefinedNetworks) (virConnectPtr conn,
char **const names,
int maxnames);
typedef virNetworkPtr
(*virDrvNetworkLookupByUUID) (virConnectPtr conn,
const unsigned char *uuid);
typedef virNetworkPtr
(*virDrvNetworkLookupByName) (virConnectPtr conn,
const char *name);
typedef virNetworkPtr
(*virDrvNetworkCreateXML) (virConnectPtr conn,
const char *xmlDesc);
typedef virNetworkPtr
(*virDrvNetworkDefineXML) (virConnectPtr conn,
const char *xml);
typedef int
(*virDrvNetworkUndefine) (virNetworkPtr network);
typedef int
(*virDrvNetworkCreate) (virNetworkPtr network);
typedef int
(*virDrvNetworkDestroy) (virNetworkPtr network);
typedef char *
(*virDrvNetworkGetXMLDesc) (virNetworkPtr network,
int flags);
typedef char *
(*virDrvNetworkGetBridgeName) (virNetworkPtr network);
typedef int
(*virDrvNetworkGetAutostart) (virNetworkPtr network,
int *autostart);
typedef int
(*virDrvNetworkSetAutostart) (virNetworkPtr network,
int autostart);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef int
(*virDrvNetworkIsActive)(virNetworkPtr net);
typedef int
(*virDrvNetworkIsPersistent)(virNetworkPtr net);
typedef struct _virNetworkDriver virNetworkDriver;
typedef virNetworkDriver *virNetworkDriverPtr;
/**
* _virNetworkDriver:
*
* Structure associated to a network virtualization driver, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - open
* - close
*/
struct _virNetworkDriver {
const char * name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
virDrvNumOfNetworks numOfNetworks;
virDrvListNetworks listNetworks;
virDrvNumOfDefinedNetworks numOfDefinedNetworks;
virDrvListDefinedNetworks listDefinedNetworks;
virDrvNetworkLookupByUUID networkLookupByUUID;
virDrvNetworkLookupByName networkLookupByName;
virDrvNetworkCreateXML networkCreateXML;
virDrvNetworkDefineXML networkDefineXML;
virDrvNetworkUndefine networkUndefine;
virDrvNetworkCreate networkCreate;
virDrvNetworkDestroy networkDestroy;
virDrvNetworkGetXMLDesc networkGetXMLDesc;
virDrvNetworkGetBridgeName networkGetBridgeName;
virDrvNetworkGetAutostart networkGetAutostart;
virDrvNetworkSetAutostart networkSetAutostart;
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
virDrvNetworkIsActive networkIsActive;
virDrvNetworkIsPersistent networkIsPersistent;
};
/*-------*/
typedef int
(*virDrvNumOfInterfaces) (virConnectPtr conn);
typedef int
(*virDrvListInterfaces) (virConnectPtr conn,
char **const names,
int maxnames);
typedef int
(*virDrvNumOfDefinedInterfaces) (virConnectPtr conn);
typedef int
(*virDrvListDefinedInterfaces) (virConnectPtr conn,
char **const names,
int maxnames);
typedef virInterfacePtr
(*virDrvInterfaceLookupByName) (virConnectPtr conn,
const char *name);
typedef virInterfacePtr
(*virDrvInterfaceLookupByMACString) (virConnectPtr conn,
const char *mac);
typedef char *
(*virDrvInterfaceGetXMLDesc) (virInterfacePtr iface,
unsigned int flags);
typedef virInterfacePtr
(*virDrvInterfaceDefineXML) (virConnectPtr conn,
const char *xmlDesc,
unsigned int flags);
typedef int
(*virDrvInterfaceUndefine) (virInterfacePtr iface);
typedef int
(*virDrvInterfaceCreate) (virInterfacePtr iface,
unsigned int flags);
typedef int
(*virDrvInterfaceDestroy) (virInterfacePtr iface,
unsigned int flags);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef int
(*virDrvInterfaceIsActive)(virInterfacePtr iface);
typedef int
(*virDrvInterfaceChangeBegin) (virConnectPtr conn,
unsigned int flags);
typedef int
(*virDrvInterfaceChangeCommit) (virConnectPtr conn,
unsigned int flags);
typedef int
(*virDrvInterfaceChangeRollback)(virConnectPtr conn,
unsigned int flags);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef struct _virInterfaceDriver virInterfaceDriver;
typedef virInterfaceDriver *virInterfaceDriverPtr;
/**
* _virInterfaceDriver:
*
* Structure associated to a network virtualization driver, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - open
* - close
*/
struct _virInterfaceDriver {
const char *name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
virDrvNumOfInterfaces numOfInterfaces;
virDrvListInterfaces listInterfaces;
virDrvNumOfDefinedInterfaces numOfDefinedInterfaces;
virDrvListDefinedInterfaces listDefinedInterfaces;
virDrvInterfaceLookupByName interfaceLookupByName;
virDrvInterfaceLookupByMACString interfaceLookupByMACString;
virDrvInterfaceGetXMLDesc interfaceGetXMLDesc;
virDrvInterfaceDefineXML interfaceDefineXML;
virDrvInterfaceUndefine interfaceUndefine;
virDrvInterfaceCreate interfaceCreate;
virDrvInterfaceDestroy interfaceDestroy;
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
virDrvInterfaceIsActive interfaceIsActive;
virDrvInterfaceChangeBegin interfaceChangeBegin;
virDrvInterfaceChangeCommit interfaceChangeCommit;
virDrvInterfaceChangeRollback interfaceChangeRollback;
};
typedef int
(*virDrvConnectNumOfStoragePools) (virConnectPtr conn);
typedef int
(*virDrvConnectListStoragePools) (virConnectPtr conn,
char **const names,
int maxnames);
typedef int
(*virDrvConnectNumOfDefinedStoragePools) (virConnectPtr conn);
typedef int
(*virDrvConnectListDefinedStoragePools) (virConnectPtr conn,
char **const names,
int maxnames);
typedef char *
(*virDrvConnectFindStoragePoolSources) (virConnectPtr conn,
const char *type,
const char *srcSpec,
unsigned int flags);
typedef virStoragePoolPtr
(*virDrvStoragePoolLookupByName) (virConnectPtr conn,
const char *name);
typedef virStoragePoolPtr
(*virDrvStoragePoolLookupByUUID) (virConnectPtr conn,
const unsigned char *uuid);
typedef virStoragePoolPtr
(*virDrvStoragePoolLookupByVolume) (virStorageVolPtr vol);
typedef virStoragePoolPtr
(*virDrvStoragePoolCreateXML) (virConnectPtr conn,
const char *xmlDesc,
unsigned int flags);
typedef virStoragePoolPtr
(*virDrvStoragePoolDefineXML) (virConnectPtr conn,
const char *xmlDesc,
unsigned int flags);
typedef int
(*virDrvStoragePoolUndefine) (virStoragePoolPtr pool);
typedef int
(*virDrvStoragePoolBuild) (virStoragePoolPtr pool,
unsigned int flags);
typedef int
(*virDrvStoragePoolCreate) (virStoragePoolPtr pool,
unsigned int flags);
typedef int
(*virDrvStoragePoolDestroy) (virStoragePoolPtr pool);
typedef int
(*virDrvStoragePoolDelete) (virStoragePoolPtr pool,
unsigned int flags);
typedef int
(*virDrvStoragePoolRefresh) (virStoragePoolPtr pool,
unsigned int flags);
typedef int
(*virDrvStoragePoolGetInfo) (virStoragePoolPtr vol,
virStoragePoolInfoPtr info);
typedef char *
(*virDrvStoragePoolGetXMLDesc) (virStoragePoolPtr pool,
unsigned int flags);
typedef int
(*virDrvStoragePoolGetAutostart) (virStoragePoolPtr pool,
int *autostart);
typedef int
(*virDrvStoragePoolSetAutostart) (virStoragePoolPtr pool,
int autostart);
typedef int
(*virDrvStoragePoolNumOfVolumes) (virStoragePoolPtr pool);
typedef int
(*virDrvStoragePoolListVolumes) (virStoragePoolPtr pool,
char **const names,
int maxnames);
typedef virStorageVolPtr
(*virDrvStorageVolLookupByName) (virStoragePoolPtr pool,
const char *name);
typedef virStorageVolPtr
(*virDrvStorageVolLookupByKey) (virConnectPtr pool,
const char *key);
typedef virStorageVolPtr
(*virDrvStorageVolLookupByPath) (virConnectPtr pool,
const char *path);
typedef virStorageVolPtr
(*virDrvStorageVolCreateXML) (virStoragePoolPtr pool,
const char *xmldesc,
unsigned int flags);
typedef int
(*virDrvStorageVolDelete) (virStorageVolPtr vol,
unsigned int flags);
typedef int
(*virDrvStorageVolWipe) (virStorageVolPtr vol,
unsigned int flags);
typedef int
(*virDrvStorageVolGetInfo) (virStorageVolPtr vol,
virStorageVolInfoPtr info);
typedef char *
(*virDrvStorageVolGetXMLDesc) (virStorageVolPtr pool,
unsigned int flags);
typedef char *
(*virDrvStorageVolGetPath) (virStorageVolPtr vol);
typedef virStorageVolPtr
(*virDrvStorageVolCreateXMLFrom) (virStoragePoolPtr pool,
const char *xmldesc,
virStorageVolPtr clone,
unsigned int flags);
typedef int
(*virDrvStorageVolDownload) (virStorageVolPtr vol,
virStreamPtr stream,
unsigned long long offset,
unsigned long long length,
unsigned int flags);
typedef int
(*virDrvStorageVolUpload) (virStorageVolPtr vol,
virStreamPtr stream,
unsigned long long offset,
unsigned long long length,
unsigned int flags);
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
typedef int
(*virDrvStoragePoolIsActive)(virStoragePoolPtr pool);
typedef int
(*virDrvStoragePoolIsPersistent)(virStoragePoolPtr pool);
typedef struct _virStorageDriver virStorageDriver;
typedef virStorageDriver *virStorageDriverPtr;
/**
* _virStorageDriver:
*
* Structure associated to a network virtualization driver, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - open
* - close
*/
struct _virStorageDriver {
const char * name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
virDrvConnectNumOfStoragePools numOfPools;
virDrvConnectListStoragePools listPools;
virDrvConnectNumOfDefinedStoragePools numOfDefinedPools;
virDrvConnectListDefinedStoragePools listDefinedPools;
virDrvConnectFindStoragePoolSources findPoolSources;
virDrvStoragePoolLookupByName poolLookupByName;
virDrvStoragePoolLookupByUUID poolLookupByUUID;
virDrvStoragePoolLookupByVolume poolLookupByVolume;
virDrvStoragePoolCreateXML poolCreateXML;
virDrvStoragePoolDefineXML poolDefineXML;
virDrvStoragePoolBuild poolBuild;
virDrvStoragePoolUndefine poolUndefine;
virDrvStoragePoolCreate poolCreate;
virDrvStoragePoolDestroy poolDestroy;
virDrvStoragePoolDelete poolDelete;
virDrvStoragePoolRefresh poolRefresh;
virDrvStoragePoolGetInfo poolGetInfo;
virDrvStoragePoolGetXMLDesc poolGetXMLDesc;
virDrvStoragePoolGetAutostart poolGetAutostart;
virDrvStoragePoolSetAutostart poolSetAutostart;
virDrvStoragePoolNumOfVolumes poolNumOfVolumes;
virDrvStoragePoolListVolumes poolListVolumes;
virDrvStorageVolLookupByName volLookupByName;
virDrvStorageVolLookupByKey volLookupByKey;
virDrvStorageVolLookupByPath volLookupByPath;
virDrvStorageVolCreateXML volCreateXML;
virDrvStorageVolCreateXMLFrom volCreateXMLFrom;
virDrvStorageVolDownload volDownload;
virDrvStorageVolUpload volUpload;
virDrvStorageVolDelete volDelete;
virDrvStorageVolWipe volWipe;
virDrvStorageVolGetInfo volGetInfo;
virDrvStorageVolGetXMLDesc volGetXMLDesc;
virDrvStorageVolGetPath volGetPath;
New APIs for checking some object properties Introduce a number of new APIs to expose some boolean properties of objects, which cannot otherwise reliably determined, nor are aspects of the XML configuration. * virDomainIsActive: Checking virDomainGetID is not reliable since it is not possible to distinguish between error condition and inactive domain for ID of -1. * virDomainIsPersistent: Check whether a persistent config exists for the domain * virNetworkIsActive: Check whether the network is active * virNetworkIsPersistent: Check whether a persistent config exists for the network * virStoragePoolIsActive: Check whether the storage pool is active * virStoragePoolIsPersistent: Check whether a persistent config exists for the storage pool * virInterfaceIsActive: Check whether the host interface is active * virConnectIsSecure: whether the communication channel to the hypervisor is secure * virConnectIsEncrypted: whether any network based commnunication channels are encrypted NB, a channel can be secure, even if not encrypted, eg if it does not involve the network, like a UNIX socket, or pipe. * include/libvirt/libvirt.h.in: Define public API * src/driver.h: Define internal driver API * src/libvirt.c: Implement public API entry point * src/libvirt_public.syms: Export API symbols * src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/interface/netcf_driver.c, src/network/bridge_driver.c, src/opennebula/one_driver.c, src/openvz/openvz_driver.c, src/phyp/phyp_driver.c, src/qemu/qemu_driver.c, src/remote/remote_driver.c, src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c, src/xen/xen_driver.c: Stub out driver tables
2009-10-21 10:49:05 +00:00
virDrvStoragePoolIsActive poolIsActive;
virDrvStoragePoolIsPersistent poolIsPersistent;
};
# ifdef WITH_LIBVIRTD
typedef int (*virDrvStateInitialize) (int privileged);
typedef int (*virDrvStateCleanup) (void);
typedef int (*virDrvStateReload) (void);
typedef int (*virDrvStateActive) (void);
typedef struct _virStateDriver virStateDriver;
typedef virStateDriver *virStateDriverPtr;
struct _virStateDriver {
const char *name;
virDrvStateInitialize initialize;
virDrvStateCleanup cleanup;
virDrvStateReload reload;
virDrvStateActive active;
};
# endif
typedef struct _virDeviceMonitor virDeviceMonitor;
typedef virDeviceMonitor *virDeviceMonitorPtr;
typedef int (*virDevMonNumOfDevices)(virConnectPtr conn,
const char *cap,
unsigned int flags);
typedef int (*virDevMonListDevices)(virConnectPtr conn,
const char *cap,
char **const names,
int maxnames,
unsigned int flags);
typedef virNodeDevicePtr (*virDevMonDeviceLookupByName)(virConnectPtr conn,
const char *name);
typedef char * (*virDevMonDeviceGetXMLDesc)(virNodeDevicePtr dev,
unsigned int flags);
typedef char * (*virDevMonDeviceGetParent)(virNodeDevicePtr dev);
typedef int (*virDevMonDeviceNumOfCaps)(virNodeDevicePtr dev);
typedef int (*virDevMonDeviceListCaps)(virNodeDevicePtr dev,
char **const names,
int maxnames);
typedef virNodeDevicePtr (*virDrvNodeDeviceCreateXML)(virConnectPtr conn,
const char *xmlDesc,
unsigned int flags);
typedef int (*virDrvNodeDeviceDestroy)(virNodeDevicePtr dev);
/**
* _virDeviceMonitor:
*
* Structure associated with monitoring the devices
* on a virtualized node.
*
*/
struct _virDeviceMonitor {
const char * name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
virDevMonNumOfDevices numOfDevices;
virDevMonListDevices listDevices;
virDevMonDeviceLookupByName deviceLookupByName;
virDevMonDeviceGetXMLDesc deviceGetXMLDesc;
virDevMonDeviceGetParent deviceGetParent;
virDevMonDeviceNumOfCaps deviceNumOfCaps;
virDevMonDeviceListCaps deviceListCaps;
virDrvNodeDeviceCreateXML deviceCreateXML;
virDrvNodeDeviceDestroy deviceDestroy;
};
/* bits 16 and above of virDomainXMLFlags are for internal use */
# define VIR_DOMAIN_XML_FLAGS_MASK 0xffff
/* Bits 16 and above of virSecretGetValue flags are for internal use */
# define VIR_SECRET_GET_VALUE_FLAGS_MASK 0xffff
enum {
/* This getValue call is inside libvirt, override the "private" flag.
This flag cannot be set by outside callers. */
VIR_SECRET_GET_VALUE_INTERNAL_CALL = 1 << 16
};
typedef virSecretPtr
Fix UUID handling in secrets/storage encryption APIs Convert all the secret/storage encryption APIs / wire format to handle UUIDs in raw format instead of non-canonical printable format. Guarentees data format correctness. * docs/schemas/storageencryption.rng: Make UUID mandatory for a secret and validate fully * docs/schemas/secret.rng: Fully validate UUID * include/libvirt/libvirt.h, include/libvirt/libvirt.h.in, Add virSecretLookupByUUID and virSecretGetUUID. Make virSecretGetUUIDString follow normal API design pattern * python/generator.py: Skip generation of virSecretGetUUID, virSecretGetUUIDString and virSecretLookupByUUID * python/libvir.c, python/libvirt-python-api.xml: Manual impl of virSecretGetUUID,virSecretGetUUIDString and virSecretLookupByUUID * qemud/remote.c: s/virSecretLookupByUUIDString/virSecretLookupByUUID/ Fix get_nonnull_secret/make_nonnull_secret to use unsigned char * qemud/remote_protocol.x: Fix remote_nonnull_secret to use a remote_uuid instead of remote_nonnull_string for UUID field. Rename REMOTE_PROC_SECRET_LOOKUP_BY_UUID_STRING to REMOTE_PROC_SECRET_LOOKUP_BY_UUID_STRING and make it take an remote_uuid value * qemud/remote_dispatch_args.h, qemud/remote_dispatch_prototypes.h, qemud/remote_dispatch_ret.h, qemud/remote_dispatch_table.h, qemud/remote_protocol.c, qemud/remote_protocol.h: Re-generate * src/datatypes.h, src/datatypes.c: Store UUID in raw format instead of printable. Change virGetSecret to use raw format UUID * src/driver.h: Rename virDrvSecretLookupByUUIDString to virDrvSecretLookupByUUID and use raw format UUID * src/libvirt.c: Add virSecretLookupByUUID and virSecretGetUUID and re-implement virSecretLookupByUUIDString and virSecretGetUUIDString in terms of those * src/libvirt_public.syms: Add virSecretLookupByUUID and virSecretGetUUID * src/remote_internal.c: Rename remoteSecretLookupByUUIDString to remoteSecretLookupByUUID. Fix typo in args for remoteSecretDefineXML impl. Use raw UUID format for get_nonnull_secret and make_nonnull_secret * src/storage_encryption_conf.c, src/storage_encryption_conf.h: Storage UUID in raw format, and require it to be present in XML. Use UUID parser to validate. * secret_conf.h, secret_conf.c: Generate a UUID if none is provided. Storage UUID in raw format. * src/secret_driver.c: Adjust to deal with raw UUIDs. Save secrets in a filed with printable UUID, instead of base64 UUID. * src/virsh.c: Adjust for changed public API contract of virSecretGetUUIDString. * src/storage_Backend.c: DOn't undefine secret we just generated upon successful volume creation. Fix to handle raw UUIDs. Generate a non-clashing UUID * src/qemu_driver.c: Change to use lookupByUUID instead of lookupByUUIDString
2009-09-10 16:44:12 +00:00
(*virDrvSecretLookupByUUID) (virConnectPtr conn,
const unsigned char *uuid);
typedef virSecretPtr
(*virDrvSecretLookupByUsage) (virConnectPtr conn,
int usageType,
const char *usageID);
typedef virSecretPtr
(*virDrvSecretDefineXML) (virConnectPtr conn,
const char *xml,
unsigned int flags);
typedef char *
(*virDrvSecretGetXMLDesc) (virSecretPtr secret,
unsigned int flags);
typedef int
(*virDrvSecretSetValue) (virSecretPtr secret,
const unsigned char *value,
size_t value_size,
unsigned int flags);
typedef unsigned char *
(*virDrvSecretGetValue) (virSecretPtr secret,
size_t *value_size,
unsigned int flags);
typedef int
(*virDrvSecretUndefine) (virSecretPtr secret);
typedef int
(*virDrvNumOfSecrets) (virConnectPtr conn);
typedef int
(*virDrvListSecrets) (virConnectPtr conn,
char **uuids,
int maxuuids);
typedef struct _virSecretDriver virSecretDriver;
typedef virSecretDriver *virSecretDriverPtr;
/**
* _virSecretDriver:
*
* Structure associated to a driver for storing secrets, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - open
* - close
*/
struct _virSecretDriver {
const char *name;
virDrvOpen open;
virDrvClose close;
virDrvNumOfSecrets numOfSecrets;
virDrvListSecrets listSecrets;
Fix UUID handling in secrets/storage encryption APIs Convert all the secret/storage encryption APIs / wire format to handle UUIDs in raw format instead of non-canonical printable format. Guarentees data format correctness. * docs/schemas/storageencryption.rng: Make UUID mandatory for a secret and validate fully * docs/schemas/secret.rng: Fully validate UUID * include/libvirt/libvirt.h, include/libvirt/libvirt.h.in, Add virSecretLookupByUUID and virSecretGetUUID. Make virSecretGetUUIDString follow normal API design pattern * python/generator.py: Skip generation of virSecretGetUUID, virSecretGetUUIDString and virSecretLookupByUUID * python/libvir.c, python/libvirt-python-api.xml: Manual impl of virSecretGetUUID,virSecretGetUUIDString and virSecretLookupByUUID * qemud/remote.c: s/virSecretLookupByUUIDString/virSecretLookupByUUID/ Fix get_nonnull_secret/make_nonnull_secret to use unsigned char * qemud/remote_protocol.x: Fix remote_nonnull_secret to use a remote_uuid instead of remote_nonnull_string for UUID field. Rename REMOTE_PROC_SECRET_LOOKUP_BY_UUID_STRING to REMOTE_PROC_SECRET_LOOKUP_BY_UUID_STRING and make it take an remote_uuid value * qemud/remote_dispatch_args.h, qemud/remote_dispatch_prototypes.h, qemud/remote_dispatch_ret.h, qemud/remote_dispatch_table.h, qemud/remote_protocol.c, qemud/remote_protocol.h: Re-generate * src/datatypes.h, src/datatypes.c: Store UUID in raw format instead of printable. Change virGetSecret to use raw format UUID * src/driver.h: Rename virDrvSecretLookupByUUIDString to virDrvSecretLookupByUUID and use raw format UUID * src/libvirt.c: Add virSecretLookupByUUID and virSecretGetUUID and re-implement virSecretLookupByUUIDString and virSecretGetUUIDString in terms of those * src/libvirt_public.syms: Add virSecretLookupByUUID and virSecretGetUUID * src/remote_internal.c: Rename remoteSecretLookupByUUIDString to remoteSecretLookupByUUID. Fix typo in args for remoteSecretDefineXML impl. Use raw UUID format for get_nonnull_secret and make_nonnull_secret * src/storage_encryption_conf.c, src/storage_encryption_conf.h: Storage UUID in raw format, and require it to be present in XML. Use UUID parser to validate. * secret_conf.h, secret_conf.c: Generate a UUID if none is provided. Storage UUID in raw format. * src/secret_driver.c: Adjust to deal with raw UUIDs. Save secrets in a filed with printable UUID, instead of base64 UUID. * src/virsh.c: Adjust for changed public API contract of virSecretGetUUIDString. * src/storage_Backend.c: DOn't undefine secret we just generated upon successful volume creation. Fix to handle raw UUIDs. Generate a non-clashing UUID * src/qemu_driver.c: Change to use lookupByUUID instead of lookupByUUIDString
2009-09-10 16:44:12 +00:00
virDrvSecretLookupByUUID lookupByUUID;
virDrvSecretLookupByUsage lookupByUsage;
virDrvSecretDefineXML defineXML;
virDrvSecretGetXMLDesc getXMLDesc;
virDrvSecretSetValue setValue;
virDrvSecretGetValue getValue;
virDrvSecretUndefine undefine;
};
typedef struct _virStreamDriver virStreamDriver;
typedef virStreamDriver *virStreamDriverPtr;
typedef int (*virDrvStreamSend)(virStreamPtr st,
const char *data,
size_t nbytes);
typedef int (*virDrvStreamRecv)(virStreamPtr st,
char *data,
size_t nbytes);
typedef int (*virDrvStreamEventAddCallback)(virStreamPtr stream,
int events,
virStreamEventCallback cb,
void *opaque,
virFreeCallback ff);
typedef int (*virDrvStreamEventUpdateCallback)(virStreamPtr stream,
int events);
typedef int (*virDrvStreamEventRemoveCallback)(virStreamPtr stream);
typedef int (*virDrvStreamFinish)(virStreamPtr st);
typedef int (*virDrvStreamAbort)(virStreamPtr st);
struct _virStreamDriver {
virDrvStreamSend streamSend;
virDrvStreamRecv streamRecv;
virDrvStreamEventAddCallback streamAddCallback;
virDrvStreamEventUpdateCallback streamUpdateCallback;
virDrvStreamEventRemoveCallback streamRemoveCallback;
virDrvStreamFinish streamFinish;
virDrvStreamAbort streamAbort;
};
typedef int
(*virDrvConnectNumOfNWFilters) (virConnectPtr conn);
typedef int
(*virDrvConnectListNWFilters) (virConnectPtr conn,
char **const names,
int maxnames);
typedef virNWFilterPtr
(*virDrvNWFilterLookupByName) (virConnectPtr conn,
const char *name);
typedef virNWFilterPtr
(*virDrvNWFilterLookupByUUID) (virConnectPtr conn,
const unsigned char *uuid);
typedef virNWFilterPtr
(*virDrvNWFilterDefineXML) (virConnectPtr conn,
const char *xmlDesc);
typedef int
(*virDrvNWFilterUndefine) (virNWFilterPtr nwfilter);
typedef char *
(*virDrvNWFilterGetXMLDesc) (virNWFilterPtr nwfilter,
int flags);
typedef struct _virNWFilterDriver virNWFilterDriver;
typedef virNWFilterDriver *virNWFilterDriverPtr;
/**
* _virNWFilterDriver:
*
* Structure associated to a network filter driver, defining the various
* entry points for it.
*
* All drivers must support the following fields/methods:
* - open
* - close
*/
struct _virNWFilterDriver {
const char * name; /* the name of the driver */
virDrvOpen open;
virDrvClose close;
virDrvConnectNumOfNWFilters numOfNWFilters;
virDrvConnectListNWFilters listNWFilters;
virDrvNWFilterLookupByName nwfilterLookupByName;
virDrvNWFilterLookupByUUID nwfilterLookupByUUID;
virDrvNWFilterDefineXML defineXML;
virDrvNWFilterUndefine undefine;
virDrvNWFilterGetXMLDesc getXMLDesc;
};
/*
* Registration
* TODO: also need ways to (des)activate a given driver
* lookup based on the URI given in a virConnectOpen(ReadOnly)
*/
int virRegisterDriver(virDriverPtr);
int virRegisterNetworkDriver(virNetworkDriverPtr);
int virRegisterInterfaceDriver(virInterfaceDriverPtr);
int virRegisterStorageDriver(virStorageDriverPtr);
int virRegisterDeviceMonitor(virDeviceMonitorPtr);
int virRegisterSecretDriver(virSecretDriverPtr);
int virRegisterNWFilterDriver(virNWFilterDriverPtr);
# ifdef WITH_LIBVIRTD
int virRegisterStateDriver(virStateDriverPtr);
# endif
2008-11-21 12:16:08 +00:00
void *virDriverLoadModule(const char *name);
#endif /* __VIR_DRIVER_H__ */