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qemu: Allocate struct for migration parameters

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It will get a bit more complicated soon and storing it on a stack with
{0} initializer will no longer work. We need a proper constructor.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jiri Denemark 2018-02-21 16:59:10 +01:00
parent 3bc416018b
commit 163304c24f
4 changed files with 61 additions and 28 deletions
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20
src/qemu/qemu_driver.c
View File

@ -12219,7 +12219,7 @@ qemuDomainMigratePerform(virDomainPtr dom,
int ret = -1;
const char *dconnuri = NULL;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
@ -12230,6 +12230,9 @@ qemuDomainMigratePerform(virDomainPtr dom,
goto cleanup;
}
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
if (!(compression = qemuMigrationAnyCompressionParse(NULL, 0, flags)))
goto cleanup;
@ -12254,12 +12257,12 @@ qemuDomainMigratePerform(virDomainPtr dom,
*/
ret = qemuMigrationSrcPerform(driver, dom->conn, vm, NULL,
NULL, dconnuri, uri, NULL, NULL, 0, NULL, 0,
compression, &migParams, cookie, cookielen,
compression, migParams, cookie, cookielen,
NULL, NULL, /* No output cookies in v2 */
flags, dname, resource, false);
cleanup:
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
VIR_FREE(compression);
return ret;
}
@ -12644,13 +12647,16 @@ qemuDomainMigratePerform3(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
if (!(compression = qemuMigrationAnyCompressionParse(NULL, 0, flags)))
return -1;
goto cleanup;
if (!(vm = qemuDomObjFromDomain(dom)))
goto cleanup;
@ -12662,13 +12668,13 @@ qemuDomainMigratePerform3(virDomainPtr dom,
ret = qemuMigrationSrcPerform(driver, dom->conn, vm, xmlin, NULL,
dconnuri, uri, NULL, NULL, 0, NULL, 0,
compression, &migParams,
compression, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, dname, resource, true);
cleanup:
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
VIR_FREE(compression);
return ret;
}

28
src/qemu/qemu_migration.c
View File

@ -2251,7 +2251,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
int rv;
char *tlsAlias = NULL;
char *secAlias = NULL;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
virNWFilterReadLockFilterUpdates();
@ -2301,6 +2301,9 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
if (!qemuMigrationSrcIsAllowedHostdev(*def))
goto cleanup;
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
/* Let migration hook filter domain XML */
if (virHookPresent(VIR_HOOK_DRIVER_QEMU)) {
char *xml;
@ -2445,7 +2448,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
}
if (qemuMigrationParamsSetCompression(driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
compression, &migParams) < 0)
compression, migParams) < 0)
goto stopjob;
/* Migrations using TLS need to add the "tls-creds-x509" object and
@ -2458,17 +2461,17 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
if (qemuMigrationParamsAddTLSObjects(driver, vm, cfg, true,
QEMU_ASYNC_JOB_MIGRATION_IN,
&tlsAlias, &secAlias, &migParams) < 0)
&tlsAlias, &secAlias, migParams) < 0)
goto stopjob;
/* Force reset of 'tls-hostname', it's a source only parameter */
if (VIR_STRDUP(migParams.tlsHostname, "") < 0)
if (VIR_STRDUP(migParams->tlsHostname, "") < 0)
goto stopjob;
} else {
if (qemuMigrationParamsSetEmptyTLS(driver, vm,
QEMU_ASYNC_JOB_MIGRATION_IN,
&migParams) < 0)
migParams) < 0)
goto stopjob;
}
@ -2489,7 +2492,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
goto stopjob;
if (qemuMigrationParamsSet(driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
&migParams) < 0)
migParams) < 0)
goto stopjob;
if (mig->nbd &&
@ -2577,7 +2580,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
virDomainObjRemoveTransientDef(vm);
qemuDomainRemoveInactiveJob(driver, vm);
}
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
virDomainObjEndAPI(&vm);
qemuDomainEventQueue(driver, event);
qemuMigrationCookieFree(mig);
@ -3881,7 +3884,7 @@ qemuMigrationSrcPerformPeer2Peer2(virQEMUDriverPtr driver,
virStreamPtr st = NULL;
unsigned long destflags;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
VIR_DEBUG("driver=%p, sconn=%p, dconn=%p, vm=%p, dconnuri=%s, "
"flags=0x%lx, dname=%s, resource=%lu",
@ -3903,6 +3906,9 @@ qemuMigrationSrcPerformPeer2Peer2(virQEMUDriverPtr driver,
destflags = flags & ~(VIR_MIGRATE_ABORT_ON_ERROR |
VIR_MIGRATE_AUTO_CONVERGE);
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
if (!(compression = qemuMigrationAnyCompressionParse(NULL, 0, flags)))
goto cleanup;
@ -3958,13 +3964,13 @@ qemuMigrationSrcPerformPeer2Peer2(virQEMUDriverPtr driver,
ret = qemuMigrationSrcPerformTunnel(driver, vm, st, NULL,
NULL, 0, NULL, NULL,
flags, resource, dconn,
NULL, 0, NULL, compression, &migParams);
NULL, 0, NULL, compression, migParams);
else
ret = qemuMigrationSrcPerformNative(driver, vm, NULL, uri_out,
cookie, cookielen,
NULL, NULL, /* No out cookie with v2 migration */
flags, resource, dconn, NULL, 0, NULL,
compression, &migParams);
compression, migParams);
/* Perform failed. Make sure Finish doesn't overwrite the error */
if (ret < 0)
@ -4004,7 +4010,7 @@ qemuMigrationSrcPerformPeer2Peer2(virQEMUDriverPtr driver,
virSetError(orig_err);
virFreeError(orig_err);
}
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
VIR_FREE(uri_out);
VIR_FREE(cookie);
VIR_FREE(compression);

38
src/qemu/qemu_migration_params.c
View File

@ -38,6 +38,18 @@ VIR_LOG_INIT("qemu.qemu_migration_params");
#define QEMU_MIGRATION_TLS_ALIAS_BASE "libvirt_migrate"
qemuMonitorMigrationParamsPtr
qemuMigrationParamsNew(void)
{
qemuMonitorMigrationParamsPtr params;
if (VIR_ALLOC(params) < 0)
return NULL;
return params;
}
void
qemuMigrationParamsClear(qemuMonitorMigrationParamsPtr migParams)
{
@ -67,7 +79,7 @@ qemuMigrationParamsFromFlags(virTypedParameterPtr params,
{
qemuMonitorMigrationParamsPtr migParams;
if (VIR_ALLOC(migParams) < 0)
if (!(migParams = qemuMigrationParamsNew()))
return NULL;
if (!params)
@ -151,16 +163,19 @@ qemuMigrationParamsCheckTLSCreds(virQEMUDriverPtr driver,
{
int ret = -1;
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
if (qemuMonitorGetMigrationParams(priv->mon, &migParams) < 0)
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
if (qemuMonitorGetMigrationParams(priv->mon, migParams) < 0)
goto cleanup;
/* NB: Could steal NULL pointer too! Let caller decide what to do. */
VIR_STEAL_PTR(priv->migTLSAlias, migParams.tlsCreds);
VIR_STEAL_PTR(priv->migTLSAlias, migParams->tlsCreds);
ret = 0;
@ -168,7 +183,7 @@ qemuMigrationParamsCheckTLSCreds(virQEMUDriverPtr driver,
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
return ret;
}
@ -384,7 +399,7 @@ qemuMigrationParamsResetTLS(virQEMUDriverPtr driver,
qemuDomainObjPrivatePtr priv = vm->privateData;
char *tlsAlias = NULL;
char *secAlias = NULL;
qemuMonitorMigrationParams migParams = { 0 };
qemuMonitorMigrationParamsPtr migParams = NULL;
int ret = -1;
if (qemuMigrationParamsCheckTLSCreds(driver, vm, asyncJob) < 0)
@ -395,6 +410,9 @@ qemuMigrationParamsResetTLS(virQEMUDriverPtr driver,
if (!priv->migTLSAlias || !*priv->migTLSAlias)
return 0;
if (!(migParams = qemuMigrationParamsNew()))
goto cleanup;
/* NB: If either or both fail to allocate memory we can still proceed
* since the next time we migrate another deletion attempt will be
* made after successfully generating the aliases. */
@ -404,9 +422,9 @@ qemuMigrationParamsResetTLS(virQEMUDriverPtr driver,
qemuDomainDelTLSObjects(driver, vm, asyncJob, secAlias, tlsAlias);
qemuDomainSecretInfoFree(&priv->migSecinfo);
if (VIR_STRDUP(migParams.tlsCreds, "") < 0 ||
VIR_STRDUP(migParams.tlsHostname, "") < 0 ||
qemuMigrationParamsSet(driver, vm, asyncJob, &migParams) < 0)
if (VIR_STRDUP(migParams->tlsCreds, "") < 0 ||
VIR_STRDUP(migParams->tlsHostname, "") < 0 ||
qemuMigrationParamsSet(driver, vm, asyncJob, migParams) < 0)
goto cleanup;
ret = 0;
@ -414,7 +432,7 @@ qemuMigrationParamsResetTLS(virQEMUDriverPtr driver,
cleanup:
VIR_FREE(tlsAlias);
VIR_FREE(secAlias);
qemuMigrationParamsClear(&migParams);
qemuMigrationParamsFree(migParams);
return ret;
}

3
src/qemu/qemu_migration_params.h
View File

@ -28,6 +28,9 @@
# include "qemu_conf.h"
qemuMonitorMigrationParamsPtr
qemuMigrationParamsNew(void);
qemuMonitorMigrationParamsPtr
qemuMigrationParamsFromFlags(virTypedParameterPtr params,
int nparams,