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hyperv: support virDomainSendKey

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This commit adds support for virDomainSendKey. It also serves as an
example of how to use the new method invocation APIs with a single
"simple" type parameter.
This commit is contained in:
Sri Ramanujam 2017-06-27 15:13:26 -04:00 committed by Matthias Bolte
parent 8c28c76a5f
commit 8efd5b6419
4 changed files with 218 additions and 1 deletions
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123
src/hyperv/hyperv_driver.c
View File

@ -35,6 +35,8 @@
#include "hyperv_wmi.h"
#include "openwsman.h"
#include "virstring.h"
#include "virkeycode.h"
#include "intprops.h"
#define VIR_FROM_THIS VIR_FROM_HYPERV
@ -1373,6 +1375,126 @@ hypervConnectListAllDomains(virConnectPtr conn,
#undef MATCH
static int
hypervDomainSendKey(virDomainPtr domain, unsigned int codeset,
unsigned int holdtime, unsigned int *keycodes, int nkeycodes,
unsigned int flags)
{
int result = -1;
size_t i = 0;
int keycode = 0;
int *translatedKeycodes = NULL;
hypervPrivate *priv = domain->conn->privateData;
char uuid_string[VIR_UUID_STRING_BUFLEN];
char *selector = NULL;
Msvm_ComputerSystem *computerSystem = NULL;
Msvm_Keyboard *keyboard = NULL;
virBuffer query = VIR_BUFFER_INITIALIZER;
hypervInvokeParamsListPtr params = NULL;
char keycodeStr[INT_BUFSIZE_BOUND(int)];
virCheckFlags(0, -1);
virUUIDFormat(domain->uuid, uuid_string);
if (hypervMsvmComputerSystemFromDomain(domain, &computerSystem) < 0)
goto cleanup;
virBufferAsprintf(&query,
"associators of "
"{Msvm_ComputerSystem.CreationClassName=\"Msvm_ComputerSystem\","
"Name=\"%s\"} "
"where ResultClass = Msvm_Keyboard",
uuid_string);
if (hypervGetMsvmKeyboardList(priv, &query, &keyboard) < 0)
goto cleanup;
if (VIR_ALLOC_N(translatedKeycodes, nkeycodes) < 0)
goto cleanup;
/* translate keycodes to win32 and generate keyup scancodes. */
for (i = 0; i < nkeycodes; i++) {
if (codeset != VIR_KEYCODE_SET_WIN32) {
keycode = virKeycodeValueTranslate(codeset, VIR_KEYCODE_SET_WIN32,
keycodes[i]);
if (keycode < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Could not translate keycode"));
goto cleanup;
}
translatedKeycodes[i] = keycode;
}
}
if (virAsprintf(&selector,
"CreationClassName=Msvm_Keyboard&DeviceID=%s&"
"SystemCreationClassName=Msvm_ComputerSystem&"
"SystemName=%s", keyboard->data.common->DeviceID, uuid_string) < 0)
goto cleanup;
/* press the keys */
for (i = 0; i < nkeycodes; i++) {
snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
params = hypervCreateInvokeParamsList(priv, "PressKey", selector,
Msvm_Keyboard_WmiInfo);
if (!params) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Could not create param"));
goto cleanup;
}
if (hypervAddSimpleParam(params, "keyCode", keycodeStr) < 0) {
hypervFreeInvokeParams(params);
goto cleanup;
}
if (hypervInvokeMethod(priv, params, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, _("Could not press key %d"),
translatedKeycodes[i]);
goto cleanup;
}
}
/* simulate holdtime by sleeping */
if (holdtime > 0)
usleep(holdtime * 1000);
/* release the keys */
for (i = 0; i < nkeycodes; i++) {
snprintf(keycodeStr, sizeof(keycodeStr), "%d", translatedKeycodes[i]);
params = hypervCreateInvokeParamsList(priv, "ReleaseKey", selector,
Msvm_Keyboard_WmiInfo);
if (!params) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Could not create param"));
goto cleanup;
}
if (hypervAddSimpleParam(params, "keyCode", keycodeStr) < 0) {
hypervFreeInvokeParams(params);
goto cleanup;
}
if (hypervInvokeMethod(priv, params, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, _("Could not release key %s"),
keycodeStr);
goto cleanup;
}
}
result = 0;
cleanup:
VIR_FREE(translatedKeycodes);
VIR_FREE(selector);
hypervFreeObject(priv, (hypervObject *) keyboard);
hypervFreeObject(priv, (hypervObject *) computerSystem);
virBufferFreeAndReset(&query);
return result;
}
static virHypervisorDriver hypervHypervisorDriver = {
@ -1408,6 +1530,7 @@ static virHypervisorDriver hypervHypervisorDriver = {
.domainManagedSave = hypervDomainManagedSave, /* 0.9.5 */
.domainHasManagedSaveImage = hypervDomainHasManagedSaveImage, /* 0.9.5 */
.domainManagedSaveRemove = hypervDomainManagedSaveRemove, /* 0.9.5 */
.domainSendKey = hypervDomainSendKey, /* 3.6.0 */
.connectIsAlive = hypervConnectIsAlive, /* 0.9.8 */
};

7
src/hyperv/hyperv_wmi.c
View File

@ -1341,6 +1341,13 @@ hypervGetMsvmMemorySettingDataList(hypervPrivate *priv, virBufferPtr query,
(hypervObject **) list);
}
int hypervGetMsvmKeyboardList(hypervPrivate *priv, virBufferPtr query,
Msvm_Keyboard **list)
{
return hypervGetWmiClassList(priv, Msvm_Keyboard_WmiInfo, query,
(hypervObject **) list);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

3
src/hyperv/hyperv_wmi.h
View File

@ -219,7 +219,8 @@ int hypervGetMsvmProcessorSettingDataList(hypervPrivate *priv,
int hypervGetMsvmMemorySettingDataList(hypervPrivate *priv, virBufferPtr query,
Msvm_MemorySettingData **list);
int hypervGetMsvmKeyboardList(hypervPrivate *priv, virBufferPtr query,
Msvm_Keyboard **list);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Msvm_ComputerSystem

86
src/hyperv/hyperv_wmi_generator.input
View File

@ -956,3 +956,89 @@ class Msvm_VirtualHardDiskSettingData
uint32 PhysicalSectorSize
string VirtualDiskId
end
class Msvm_Keyboard
string Caption
string Description
string ElementName
datetime InstallDate
string Name
uint16 OperationalStatus[]
string StatusDescriptions[]
string Status
uint16 HealthState
uint16 EnabledState
string OtherEnabledState
uint16 RequestedState
uint16 EnabledDefault
datetime TimeOfLastStateChange
string SystemCreationClassName
string SystemName
string CreationClassName
string DeviceID
boolean PowerManagementSupported
uint16 PowerManagementCapabilities[]
uint16 Availability
uint16 StatusInfo
uint32 LastErrorCode
string ErrorDescription
boolean ErrorCleared
string OtherIdentifyingInfo[]
uint64 PowerOnHours
uint64 TotalPowerOnHours
string IdentifyingDescriptions[]
uint16 AdditionalAvailability[]
uint64 MaxQuiesceTime
uint16 LocationIndicator
boolean IsLocked
string Layout
uint16 NumberOfFunctionKeys
uint16 Password
end
class v2/Msvm_Keyboard
string InstanceID
string Caption
string Description
string ElementName
datetime InstallDate
string Name
uint16 OperationalStatus[]
string StatusDescriptions[]
string Status
uint16 HealthState
uint16 CommunicationStatus
uint16 DetailedStatus
uint16 OperatingStatus
uint16 PrimaryStatus
uint16 EnabledState
string OtherEnabledState
uint16 RequestedState
uint16 EnabledDefault
datetime TimeOfLastStateChange
uint16 AvailableRequestedStates[]
uint16 TransitioningToState
string SystemCreationClassName
string SystemName
string CreationClassName
string DeviceID
boolean PowerManagementSupported
uint16 PowerManagementCapabilities[]
uint16 Availability
uint16 StatusInfo
uint32 LastErrorCode
string ErrorDescription
boolean ErrorCleared
string OtherIdentifyingInfo[]
uint64 PowerOnHours
uint64 TotalPowerOnHours
string IdentifyingDescriptions[]
uint16 AdditionalAvailability[]
uint64 MaxQuiesceTime
boolean IsLocked
string Layout
uint16 NumberOfFunctionKeys
uint16 Password
boolean UnicodeSupported
end