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migration: Add helpers to detect TLS capability

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Add migrate_channel_requires_tls() to detect whether the specific channel
requires TLS, leveraging the recently introduced migrate_use_tls().  No
functional change intended.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185513.27421-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Peter Xu 2022-07-07 14:55:13 -04:00 committed by Dr. David Alan Gilbert
parent c8750de118
commit 85a8578ea5
5 changed files with 17 additions and 10 deletions
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9
migration/channel.c
View file

@ -38,9 +38,7 @@ void migration_channel_process_incoming(QIOChannel *ioc)
trace_migration_set_incoming_channel(
ioc, object_get_typename(OBJECT(ioc)));
if (migrate_use_tls() &&
!object_dynamic_cast(OBJECT(ioc),
TYPE_QIO_CHANNEL_TLS)) {
if (migrate_channel_requires_tls_upgrade(ioc)) {
migration_tls_channel_process_incoming(s, ioc, &local_err);
} else {
migration_ioc_register_yank(ioc);
@ -70,10 +68,7 @@ void migration_channel_connect(MigrationState *s,
ioc, object_get_typename(OBJECT(ioc)), hostname, error);
if (!error) {
if (s->parameters.tls_creds &&
*s->parameters.tls_creds &&
!object_dynamic_cast(OBJECT(ioc),
TYPE_QIO_CHANNEL_TLS)) {
if (migrate_channel_requires_tls_upgrade(ioc)) {
migration_tls_channel_connect(s, ioc, hostname, &error);
if (!error) {

1
migration/migration.c
View file

@ -48,6 +48,7 @@
#include "trace.h"
#include "exec/target_page.h"
#include "io/channel-buffer.h"
#include "io/channel-tls.h"
#include "migration/colo.h"
#include "hw/boards.h"
#include "hw/qdev-properties.h"

4
migration/multifd.c
View file

@ -831,9 +831,7 @@ static bool multifd_channel_connect(MultiFDSendParams *p,
migrate_get_current()->hostname, error);
if (!error) {
if (migrate_use_tls() &&
!object_dynamic_cast(OBJECT(ioc),
TYPE_QIO_CHANNEL_TLS)) {
if (migrate_channel_requires_tls_upgrade(ioc)) {
multifd_tls_channel_connect(p, ioc, &error);
if (!error) {
/*

9
migration/tls.c
View file

@ -166,3 +166,12 @@ void migration_tls_channel_connect(MigrationState *s,
NULL,
NULL);
}
bool migrate_channel_requires_tls_upgrade(QIOChannel *ioc)
{
if (!migrate_use_tls()) {
return false;
}
return !object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS);
}

4
migration/tls.h
View file

@ -37,4 +37,8 @@ void migration_tls_channel_connect(MigrationState *s,
QIOChannel *ioc,
const char *hostname,
Error **errp);
/* Whether the QIO channel requires further TLS handshake? */
bool migrate_channel_requires_tls_upgrade(QIOChannel *ioc);
#endif