[libvirt] [PATCH 4/4 V4] qemu:send-key: Implement the driver methods
Lai Jiangshan
laijs at cn.fujitsu.com
Thu Jul 14 03:32:18 UTC 2011
qemu driver just accept xt_kbd codeset's keycode, so the lib virtkey
is used for translating keycodes from other codesets.
Signed-off-by: Lai Jiangshan <laijs at cn.fujitsu.com>
---
src/qemu/qemu_driver.c | 71 ++++++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_monitor.c | 17 ++++++++++
src/qemu/qemu_monitor.h | 5 +++
src/qemu/qemu_monitor_json.c | 15 +++++++++
src/qemu/qemu_monitor_json.h | 5 +++
src/qemu/qemu_monitor_text.c | 49 +++++++++++++++++++++++++++++
src/qemu/qemu_monitor_text.h | 5 +++
7 files changed, 167 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 0ea182d..c93885b 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -87,6 +87,7 @@
#include "configmake.h"
#include "threadpool.h"
#include "locking/lock_manager.h"
+#include "virtkey.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
@@ -1843,6 +1844,75 @@ cleanup:
return ret;
}
+static int qemuDomainSendKey(virDomainPtr domain,
+ unsigned int codeset,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ int nkeycodes,
+ unsigned int flags)
+{
+ struct qemud_driver *driver = domain->conn->privateData;
+ virDomainObjPtr vm = NULL;
+ int ret = -1;
+ qemuDomainObjPrivatePtr priv;
+
+ virCheckFlags(0, -1);
+
+ /* translate the keycode to XT_KBD for qemu driver */
+ if (codeset != VIR_KEYCODE_SET_XT_KBD) {
+ int i;
+ int keycode;
+
+ for (i = 0; i < nkeycodes; i++) {
+ keycode = virTranslateKeyCode(codeset, VIR_KEYCODE_SET_XT_KBD,
+ keycodes[i]);
+ if (keycode < 0) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR, "can not translate "
+ "keycode %u of %s codeset to xt_kbd codeset "
+ "keycode", keycodes[i],
+ virKeycodeSetTypeToString(codeset));
+ return -1;
+ }
+ keycodes[i] = keycode;
+ }
+ }
+
+ qemuDriverLock(driver);
+ vm = virDomainFindByUUID(&driver->domains, domain->uuid);
+ if (!vm) {
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
+ virUUIDFormat(domain->uuid, uuidstr);
+ qemuReportError(VIR_ERR_NO_DOMAIN,
+ _("no domain with matching uuid '%s'"), uuidstr);
+ goto cleanup;
+ }
+
+ priv = vm->privateData;
+
+ if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ qemuReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto cleanup;
+ }
+
+ qemuDomainObjEnterMonitorWithDriver(driver, vm);
+ ret = qemuMonitorSendKey(priv->mon, holdtime, keycodes, nkeycodes);
+ qemuDomainObjExitMonitorWithDriver(driver, vm);
+ if (qemuDomainObjEndJob(vm) == 0) {
+ vm = NULL;
+ goto cleanup;
+ }
+
+cleanup:
+ if (vm)
+ virDomainObjUnlock(vm);
+ qemuDriverUnlock(driver);
+ return ret;
+}
+
static int qemudDomainGetInfo(virDomainPtr dom,
virDomainInfoPtr info)
{
@@ -8646,6 +8716,7 @@ static virDriver qemuDriver = {
.domainMigratePerform3 = qemuDomainMigratePerform3, /* 0.9.2 */
.domainMigrateFinish3 = qemuDomainMigrateFinish3, /* 0.9.2 */
.domainMigrateConfirm3 = qemuDomainMigrateConfirm3, /* 0.9.2 */
+ .domainSendKey = qemuDomainSendKey, /* 0.9.3 */
};
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index e593642..35fb999 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -2398,6 +2398,23 @@ int qemuMonitorInjectNMI(qemuMonitorPtr mon)
return ret;
}
+int qemuMonitorSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes)
+{
+ int ret;
+
+ VIR_DEBUG("mon=%p, holdtime=%u, nkeycodes=%u",
+ mon, holdtime, nkeycodes);
+
+ if (mon->json)
+ ret = qemuMonitorJSONSendKey(mon, holdtime, keycodes, nkeycodes);
+ else
+ ret = qemuMonitorTextSendKey(mon, holdtime, keycodes, nkeycodes);
+ return ret;
+}
+
int qemuMonitorScreendump(qemuMonitorPtr mon,
const char *file)
{
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 893f3e9..73a95f1 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -444,6 +444,11 @@ int qemuMonitorInjectNMI(qemuMonitorPtr mon);
int qemuMonitorScreendump(qemuMonitorPtr mon,
const char *file);
+int qemuMonitorSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes);
+
/**
* When running two dd process and using <> redirection, we need a
* shell that will not truncate files. These two strings serve that
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 4db2b78..8385085 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -2695,6 +2695,21 @@ cleanup:
return ret;
}
+int qemuMonitorJSONSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes)
+{
+ /*
+ * FIXME: qmp sendkey has not been implemented yet,
+ * and qmp API of it can not be anticipated, so we use hmp temporary.
+ */
+ if (qemuMonitorCheckHMP(mon, "sendkey")) {
+ return qemuMonitorTextSendKey(mon, holdtime, keycodes, nkeycodes);
+ } else
+ return -1;
+}
+
int qemuMonitorJSONScreendump(qemuMonitorPtr mon,
const char *file)
{
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index 380e26a..ddd121e 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -217,6 +217,11 @@ int qemuMonitorJSONArbitraryCommand(qemuMonitorPtr mon,
int qemuMonitorJSONInjectNMI(qemuMonitorPtr mon);
+int qemuMonitorJSONSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes);
+
int qemuMonitorJSONScreendump(qemuMonitorPtr mon,
const char *file);
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index 0965a08..52b9a34 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -2755,6 +2755,55 @@ fail:
return -1;
}
+int qemuMonitorTextSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes)
+{
+ int i;
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ char *cmd, *reply = NULL;
+
+ if (nkeycodes > VIR_DOMAIN_SEND_KEY_MAX_KEYS || nkeycodes == 0)
+ return -1;
+
+ virBufferAddLit(&buf, "sendkey ");
+ for (i = 0; i < nkeycodes; i++) {
+ if (keycodes[i] > 0xffff) {
+ qemuReportError(VIR_ERR_OPERATION_FAILED,
+ _("keycode %d is invalid: 0x%X"),
+ i, keycodes[i]);
+ virBufferFreeAndReset(&buf);
+ return -1;
+ }
+
+ if (i)
+ virBufferAddChar(&buf, '-');
+ virBufferAsprintf(&buf, "0x%02X", keycodes[i]);
+ }
+
+ if (holdtime)
+ virBufferAsprintf(&buf, " %u", holdtime);
+
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ return -1;
+ }
+
+ cmd = virBufferContentAndReset(&buf);
+ if (qemuMonitorHMPCommand(mon, cmd, &reply) < 0) {
+ qemuReportError(VIR_ERR_OPERATION_FAILED,
+ _("failed to send key using command '%s'"),
+ cmd);
+ VIR_FREE(cmd);
+ return -1;
+ }
+
+ VIR_FREE(cmd);
+ VIR_FREE(reply);
+ return 0;
+}
+
/* Returns -1 on error, -2 if not supported */
int qemuMonitorTextScreendump(qemuMonitorPtr mon, const char *file)
{
diff --git a/src/qemu/qemu_monitor_text.h b/src/qemu/qemu_monitor_text.h
index e53f693..042e581 100644
--- a/src/qemu/qemu_monitor_text.h
+++ b/src/qemu/qemu_monitor_text.h
@@ -211,6 +211,11 @@ int qemuMonitorTextArbitraryCommand(qemuMonitorPtr mon, const char *cmd,
int qemuMonitorTextInjectNMI(qemuMonitorPtr mon);
+int qemuMonitorTextSendKey(qemuMonitorPtr mon,
+ unsigned int holdtime,
+ unsigned int *keycodes,
+ unsigned int nkeycodes);
+
int qemuMonitorTextScreendump(qemuMonitorPtr mon, const char *file);
#endif /* QEMU_MONITOR_TEXT_H */
--
1.7.4.4
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