[PATCH 07/10] qemu: migration: Use 'VIR_MIGRATE_PARAM_TLS_DESTINATION' for the NBD connection

The NBD connection for non-shared storage migration can have the same issue regarding TLS certificate name match as the migration connection itself. Propagate the configured name also for the NBD connections. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1901448 Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_migration.c | 21 +++++++++++++++++---- src/qemu/qemu_migration_params.c | 17 +++++++++++++++++ src/qemu/qemu_migration_params.h | 3 +++ 3 files changed, 37 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 42fc5c5d62..3650de3de8 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -883,7 +883,8 @@ qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(virDomainDiskDef *disk, const char *host, int port, const char *socket, - const char *tlsAlias) + const char *tlsAlias, + const char *tlsHostname) { g_autoptr(virStorageSource) copysrc = NULL; @@ -910,6 +911,7 @@ qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(virDomainDiskDef *disk, } copysrc->tlsAlias = g_strdup(tlsAlias); + copysrc->tlsHostname = g_strdup(tlsHostname); copysrc->nodestorage = g_strdup_printf("migration-%s-storage", disk->dst); copysrc->nodeformat = g_strdup_printf("migration-%s-format", disk->dst); @@ -931,6 +933,7 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriver *driver, unsigned long long mirror_speed, unsigned int mirror_shallow, const char *tlsAlias, + const char *tlsHostname, bool syncWrites) { g_autoptr(qemuBlockStorageSourceAttachData) data = NULL; @@ -940,7 +943,8 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriver *driver, VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", disk->dst, host); - if (!(copysrc = qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(disk, host, port, socket, tlsAlias))) + if (!(copysrc = qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(disk, host, port, socket, + tlsAlias, tlsHostname))) return -1; /* Migration via blockdev-mirror was supported sooner than the auto-read-only @@ -1025,6 +1029,7 @@ qemuMigrationSrcNBDStorageCopyOne(virQEMUDriver *driver, unsigned long long mirror_speed, bool mirror_shallow, const char *tlsAlias, + const char *tlsHostname, unsigned int flags) { qemuDomainObjPrivate *priv = vm->privateData; @@ -1065,6 +1070,7 @@ qemuMigrationSrcNBDStorageCopyOne(virQEMUDriver *driver, mirror_speed, mirror_shallow, tlsAlias, + tlsHostname, syncWrites); } else { rc = qemuMigrationSrcNBDStorageCopyDriveMirror(driver, vm, diskAlias, @@ -1114,6 +1120,7 @@ qemuMigrationSrcNBDStorageCopy(virQEMUDriver *driver, const char **migrate_disks, virConnectPtr dconn, const char *tlsAlias, + const char *tlsHostname, const char *nbdURI, unsigned int flags) { @@ -1137,6 +1144,11 @@ qemuMigrationSrcNBDStorageCopy(virQEMUDriver *driver, } mirror_speed <<= 20; + /* If qemu doesn't support overriding of TLS hostname for NBD connections + * we won't attempt it */ + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_NBD_TLS_HOSTNAME)) + tlsHostname = NULL; + /* steal NBD port and thus prevent its propagation back to destination */ port = mig->nbd->port; mig->nbd->port = 0; @@ -1185,7 +1197,7 @@ qemuMigrationSrcNBDStorageCopy(virQEMUDriver *driver, if (qemuMigrationSrcNBDStorageCopyOne(driver, vm, disk, host, port, socket, mirror_speed, mirror_shallow, - tlsAlias, flags) < 0) + tlsAlias, tlsHostname, flags) < 0) return -1; if (virDomainObjSave(vm, driver->xmlopt, cfg->stateDir) < 0) { @@ -4138,6 +4150,7 @@ qemuMigrationSrcRun(virQEMUDriver *driver, if (storageMigration) { if (mig->nbd) { const char *host = ""; + const char *tlsHostname = qemuMigrationParamsGetTLSHostname(migParams); if (spec->destType == MIGRATION_DEST_HOST || spec->destType == MIGRATION_DEST_CONNECT_HOST) { @@ -4157,7 +4170,7 @@ qemuMigrationSrcRun(virQEMUDriver *driver, priv->migMaxBandwidth, nmigrate_disks, migrate_disks, - dconn, tlsAlias, + dconn, tlsAlias, tlsHostname, nbdURI, flags) < 0) { goto error; } diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c index 7b225fdf4b..e30fd04ada 100644 --- a/src/qemu/qemu_migration_params.c +++ b/src/qemu/qemu_migration_params.c @@ -1464,3 +1464,20 @@ qemuMigrationCapsGet(virDomainObj *vm, return enabled; } + + +/** + * qemuMigrationParamsGetTLSHostname: + * @migParams: Migration params object + * + * Fetches the value of the QEMU_MIGRATION_PARAM_TLS_HOSTNAME parameter which is + * passed from the user as VIR_MIGRATE_PARAM_TLS_DESTINATION + */ +const char * +qemuMigrationParamsGetTLSHostname(qemuMigrationParams *migParams) +{ + if (!migParams->params[QEMU_MIGRATION_PARAM_TLS_HOSTNAME].set) + return NULL; + + return migParams->params[QEMU_MIGRATION_PARAM_TLS_HOSTNAME].value.s; +} diff --git a/src/qemu/qemu_migration_params.h b/src/qemu/qemu_migration_params.h index b4de8dda7b..4a8815e776 100644 --- a/src/qemu/qemu_migration_params.h +++ b/src/qemu/qemu_migration_params.h @@ -167,3 +167,6 @@ qemuMigrationCapsCheck(virQEMUDriver *driver, bool qemuMigrationCapsGet(virDomainObj *vm, qemuMigrationCapability cap); + +const char * +qemuMigrationParamsGetTLSHostname(qemuMigrationParams *migParams); -- 2.35.1