libvirt/src/hyperv/hyperv_wmi.h

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/*
* hyperv_wmi.h: general WMI over WSMAN related functions and structures for
* managing Microsoft Hyper-V hosts
*
* Copyright (C) 2011 Matthias Bolte <matthias.bolte@googlemail.com>
* Copyright (C) 2009 Michael Sievers <msievers83@googlemail.com>
*
* 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, see
* <http://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "virbuffer.h"
#include "hyperv_private.h"
#include "hyperv_wmi_classes.h"
#include "virhash.h"
#define HYPERV_WQL_QUERY_INITIALIZER { NULL, NULL }
#define HYPERV_DEFAULT_PARAM_COUNT 5
#define MSVM_VIRTUALSYSTEMMANAGEMENTSERVICE_SELECTOR \
"CreationClassName=Msvm_VirtualSystemManagementService"
int hypervVerifyResponse(WsManClient *client, WsXmlDocH response,
const char *detail);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Object
*/
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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typedef struct _hypervObject hypervObject;
struct _hypervObject {
/* Unserialized data from wsman response. The member called "common" has
* properties that are the same type and name for all "versions" of given
* WMI class. This means that calling code does not have to make any
* conditional checks based on which version was returned as long as it
* only needs to read common values. The alignment of structs is ensured
* by the generator.
*/
union {
XML_TYPE_PTR common;
XML_TYPE_PTR v1;
XML_TYPE_PTR v2;
} data;
/* The info used to make wsman request */
hypervWmiClassInfoPtr info;
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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hypervObject *next;
};
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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typedef struct _hypervWqlQuery hypervWqlQuery;
typedef hypervWqlQuery *hypervWqlQueryPtr;
struct _hypervWqlQuery {
virBufferPtr query;
hypervWmiClassInfoListPtr info;
};
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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int hypervEnumAndPull(hypervPrivate *priv, hypervWqlQueryPtr wqlQuery,
hypervObject **list);
void hypervFreeObject(hypervPrivate *priv, hypervObject *object);
/*
* Invoke
*/
typedef enum {
HYPERV_SIMPLE_PARAM,
HYPERV_EPR_PARAM,
HYPERV_EMBEDDED_PARAM
} hypervStorageType;
struct _hypervSimpleParam {
const char *name;
const char *value;
};
typedef struct _hypervSimpleParam hypervSimpleParam;
struct _hypervEprParam {
const char *name;
virBufferPtr query;
hypervWmiClassInfoPtr info; /* info of the object this param represents */
};
typedef struct _hypervEprParam hypervEprParam;
struct _hypervEmbeddedParam {
const char *name;
virHashTablePtr table;
hypervWmiClassInfoPtr info; /* info of the object this param represents */
};
typedef struct _hypervEmbeddedParam hypervEmbeddedParam;
struct _hypervParam {
hypervStorageType type;
union {
hypervSimpleParam simple;
hypervEprParam epr;
hypervEmbeddedParam embedded;
};
};
typedef struct _hypervParam hypervParam;
typedef hypervParam *hypervParamPtr;
struct _hypervInvokeParamsList {
const char *method;
const char *ns;
const char *resourceUri;
const char *selector;
hypervParamPtr params;
size_t nbParams;
size_t nbAvailParams;
};
typedef struct _hypervInvokeParamsList hypervInvokeParamsList;
typedef hypervInvokeParamsList *hypervInvokeParamsListPtr;
hypervInvokeParamsListPtr hypervCreateInvokeParamsList(hypervPrivate *priv,
const char *method, const char *selector, hypervWmiClassInfoListPtr obj);
void hypervFreeInvokeParams(hypervInvokeParamsListPtr params);
int hypervAddSimpleParam(hypervInvokeParamsListPtr params, const char *name,
const char *value);
int hypervAddEprParam(hypervInvokeParamsListPtr params, const char *name,
hypervPrivate *priv, virBufferPtr query,
hypervWmiClassInfoListPtr eprInfo);
virHashTablePtr hypervCreateEmbeddedParam(hypervPrivate *priv,
hypervWmiClassInfoListPtr info);
int hypervSetEmbeddedProperty(virHashTablePtr table, const char *name,
char *value);
int hypervAddEmbeddedParam(hypervInvokeParamsListPtr params, hypervPrivate *priv,
const char *name, virHashTablePtr table, hypervWmiClassInfoListPtr info);
void hypervFreeEmbeddedParam(virHashTablePtr p);
int hypervInvokeMethod(hypervPrivate *priv,
hypervInvokeParamsListPtr *paramsPtr,
WsXmlDocH *res);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* CIM/Msvm_ReturnCode
*/
enum _CIM_ReturnCode {
CIM_RETURNCODE_COMPLETED_WITH_NO_ERROR = 0,
CIM_RETURNCODE_NOT_SUPPORTED = 1,
CIM_RETURNCODE_UNKNOWN_ERROR = 2,
CIM_RETURNCODE_CANNOT_COMPLETE_WITHIN_TIMEOUT_PERIOD = 3,
CIM_RETURNCODE_FAILED = 4,
CIM_RETURNCODE_INVALID_PARAMETER = 5,
CIM_RETURNCODE_IN_USE = 6,
CIM_RETURNCODE_TRANSITION_STARTED = 4096,
CIM_RETURNCODE_INVALID_STATE_TRANSITION = 4097,
CIM_RETURNCODE_TIMEOUT_PARAMETER_NOT_SUPPORTED = 4098,
CIM_RETURNCODE_BUSY = 4099,
};
enum _Msvm_ReturnCode {
MSVM_RETURNCODE_FAILED = 32768,
MSVM_RETURNCODE_ACCESS_DENIED = 32769,
MSVM_RETURNCODE_NOT_SUPPORTED = 32770,
MSVM_RETURNCODE_STATUS_IS_UNKNOWN = 32771,
MSVM_RETURNCODE_TIMEOUT = 32772,
MSVM_RETURNCODE_INVALID_PARAMETER = 32773,
MSVM_RETURNCODE_SYSTEM_IS_IN_USE = 32774,
MSVM_RETURNCODE_INVALID_STATE_FOR_THIS_OPERATION = 32775,
MSVM_RETURNCODE_INCORRECT_DATA_TYPE = 32776,
MSVM_RETURNCODE_SYSTEM_IS_NOT_AVAILABLE = 32777,
MSVM_RETURNCODE_OUT_OF_MEMORY = 32778,
};
const char *hypervReturnCodeToString(int returnCode);
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Generic "Get WMI class list" helpers
*/
int hypervGetWmiClassList(hypervPrivate *priv,
hypervWmiClassInfoListPtr wmiInfo, virBufferPtr query,
hypervObject **wmiClass);
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
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int hypervGetMsvmVirtualSystemSettingDataFromUUID(hypervPrivate *priv,
const char *uuid_string,
Msvm_VirtualSystemSettingData **list);
int hypervGetMsvmMemorySettingDataFromVSSD(hypervPrivate *priv,
const char *vssd_instanceid,
Msvm_MemorySettingData **list);
hyperv: add support for Hyper-V 2012 and newer This patch reworks the Hyper-V driver structs and the code generator to provide seamless support for both Hyper-V 2008 and 2012 or newer. This does not implement any new libvirt APIs, it just adapts existing 2008-only driver to also handle 2012 and newer by sharing as much driver code as possible (currently it's all of it :-)). This is needed to set the foundation before we can move forward with implementing the rest of the driver APIs. With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI classes. Those are largely the same as "v1" (used in 2008) but have some new properties as well as need different wsman request URIs. To accomodate those differences, most of work went into the code generator so that it's "aware" of possibility of multiple versions of the same WMI class and produce C code accordingly. To accomplish this the following changes were made: * the abstract hypervObject struct's data member was changed to a union that has "common", "v1" and "v2" members. Those are structs that represent WMI classes that we get back from wsman response. The "common" struct has members that are present in both "v1" and "v2" which the driver API callbacks can use to read the data from in version-independent manner (if version-specific member needs to be accessed the driver can check priv->wmiVersion and read from "v1" or "v2" as needed). Those structs are guaranteed to be memory aligned by the code generator (see the align_property_members implementation that takes care of that) * the generator produces *_WmiInfo for each WMI class "family" that holds an array of hypervWmiClassInfoPtr each providing information as to which request URI to use for each "version" of given WMI class as well as XmlSerializerInfo struct needed to unserilize WS-MAN responsed into the data structs. The driver uses those to make proper WS-MAN request depending on which version it's connected to. * the generator no longer produces "helper" functions such as hypervGetMsvmComputerSystemList as those were originally just simple wrappers around hypervEnumAndPull, instead those were hand-written now (to keep driver changes minimal). The reason is that we'll have more code coming implementing missing libvirt APIs and surely code patterns will emerge that would warrant more useful "utility" functions like that. * a hypervInitConnection was added to the driver which "detects" Hyper-V version by testing simple wsman request using v2 then falling back to v1, obviously if both fail, the we're erroring out. To express how the above translates in code: void hypervImplementSomeLibvirtApi(virConnectPtr conn, ...) { hypervPrivate *priv = conn->privateData; virBuffer query = VIR_BUFFER_INITIALIZER; hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER; Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */ /* the WmiInfo struct has the data needed for wsman request and * response handling for both v1 and v2 */ wqlQuery.info = Msvm_ComputerSystem_WmiInfo; wqlQuery.query = &query; virBufferAddLit(&query, "select * from Msvm_ComputerSystem"); if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) { goto cleanup; } if (list == NULL) { /* none found */ goto cleanup; } /* works with v1 and v2 */ char *vmName = list->data.common->Name; /* access property that is in v2 only */ if (priv->wmiVersion == HYPERV_WMI_VERSION_V2) char *foo = list->data.v2->V2Property; else char *foo = list->data.v1->V1Property; cleanup: hypervFreeObject(priv, (hypervObject *)list); }
2017-04-04 22:26:08 +00:00
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Msvm_ComputerSystem
*/
int hypervInvokeMsvmComputerSystemRequestStateChange(virDomainPtr domain,
int requestedState);
int hypervMsvmComputerSystemEnabledStateToDomainState
(Msvm_ComputerSystem *computerSystem);
bool hypervIsMsvmComputerSystemActive(Msvm_ComputerSystem *computerSystem,
bool *in_transition);
int hypervMsvmComputerSystemToDomain(virConnectPtr conn,
Msvm_ComputerSystem *computerSystem,
virDomainPtr *domain);
int hypervMsvmComputerSystemFromDomain(virDomainPtr domain,
Msvm_ComputerSystem **computerSystem);