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ch_driver: Add handler for console API

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Enable the handler function to find and open the console character
device that will be used by the console API.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: William Douglas <william.douglas@intel.com>
This commit is contained in:
William Douglas 2021-09-08 11:01:22 -07:00 committed by Daniel P. Berrangé
parent 6a77dd2b67
commit d4f047dbd1
1 changed files with 74 additions and 0 deletions
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74
src/ch/ch_driver.c
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@ -30,6 +30,7 @@
#include "viraccessapicheck.h"
#include "viralloc.h"
#include "virbuffer.h"
#include "virchrdev.h"
#include "vircommand.h"
#include "virerror.h"
#include "virfile.h"
@ -816,6 +817,78 @@ static int chDomainGetInfo(virDomainPtr dom,
return ret;
}
static int
chDomainOpenConsole(virDomainPtr dom,
const char *dev_name,
virStreamPtr st,
unsigned int flags)
{
virDomainObj *vm = NULL;
int ret = -1;
size_t i;
virDomainChrDef *chr = NULL;
virCHDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_CONSOLE_SAFE | VIR_DOMAIN_CONSOLE_FORCE, -1);
if (!(vm = chDomObjFromDomain(dom)))
goto cleanup;
if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (dev_name) {
for (i = 0; !chr && i < vm->def->nconsoles; i++) {
if (vm->def->consoles[i]->info.alias &&
STREQ(dev_name, vm->def->consoles[i]->info.alias))
chr = vm->def->consoles[i];
}
for (i = 0; !chr && i < vm->def->nserials; i++) {
if (STREQ(dev_name, vm->def->serials[i]->info.alias))
chr = vm->def->serials[i];
}
} else {
if (vm->def->nconsoles &&
vm->def->consoles[0]->source->type == VIR_DOMAIN_CHR_TYPE_PTY)
chr = vm->def->consoles[0];
else if (vm->def->nserials &&
vm->def->serials[0]->source->type == VIR_DOMAIN_CHR_TYPE_PTY)
chr = vm->def->serials[0];
}
if (!chr) {
virReportError(VIR_ERR_INTERNAL_ERROR, _("cannot find character device %s"),
NULLSTR(dev_name));
goto cleanup;
}
if (chr->source->type != VIR_DOMAIN_CHR_TYPE_PTY) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("character device %s is not using a PTY"),
dev_name ? dev_name : NULLSTR(chr->info.alias));
goto cleanup;
}
/* handle mutually exclusive access to console devices */
ret = virChrdevOpen(priv->chrdevs, chr->source, st,
(flags & VIR_DOMAIN_CONSOLE_FORCE) != 0);
if (ret == 1) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Active console session exists for this domain"));
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int chStateCleanup(void)
{
if (ch_driver == NULL)
@ -913,6 +986,7 @@ static virHypervisorDriver chHypervisorDriver = {
.domainGetXMLDesc = chDomainGetXMLDesc, /* 7.5.0 */
.domainGetInfo = chDomainGetInfo, /* 7.5.0 */
.domainIsActive = chDomainIsActive, /* 7.5.0 */
.domainOpenConsole = chDomainOpenConsole, /* 7.8.0 */
.nodeGetInfo = chNodeGetInfo, /* 7.5.0 */
};