migration: Add migrate_use_tls() helper

A lot of places check parameters.tls_creds in order to evaluate if TLS is
in use, and sometimes call migrate_get_current() just for that test.

Add new helper function migrate_use_tls() in order to simplify testing
for TLS usage.

Signed-off-by: Leonardo Bras <leobras@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220513062836.965425-6-leobras@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/migration/migration.c b/migration/migration.c
index 3e91f4b5e2..4b6df2eb5e 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2588,6 +2588,15 @@ bool migrate_use_zero_copy_send(void)
 }
 #endif
 
+int migrate_use_tls(void)
+{
+    MigrationState *s;
+
+    s = migrate_get_current();
+
+    return s->parameters.tls_creds && *s->parameters.tls_creds;
+}
+
 int migrate_use_xbzrle(void)
 {
     MigrationState *s;