1 /* 2 * QEMU live migration channel operations 3 * 4 * Copyright Red Hat, Inc. 2016 5 * 6 * Authors: 7 * Daniel P. Berrange <berrange@redhat.com> 8 * 9 * Contributions after 2012-01-13 are licensed under the terms of the 10 * GNU GPL, version 2 or (at your option) any later version. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "channel.h" 15 #include "tls.h" 16 #include "migration.h" 17 #include "qemu-file-channel.h" 18 #include "trace.h" 19 #include "qapi/error.h" 20 #include "io/channel-tls.h" 21 22 void migration_channel_process_incoming(QIOChannel *ioc) 23 { 24 MigrationState *s = migrate_get_current(); 25 26 trace_migration_set_incoming_channel( 27 ioc, object_get_typename(OBJECT(ioc))); 28 29 if (s->parameters.tls_creds && 30 *s->parameters.tls_creds && 31 !object_dynamic_cast(OBJECT(ioc), 32 TYPE_QIO_CHANNEL_TLS)) { 33 Error *local_err = NULL; 34 migration_tls_channel_process_incoming(s, ioc, &local_err); 35 if (local_err) { 36 error_report_err(local_err); 37 } 38 } else { 39 QEMUFile *f = qemu_fopen_channel_input(ioc); 40 migration_fd_process_incoming(f); 41 } 42 } 43 44 45 void migration_channel_connect(MigrationState *s, 46 QIOChannel *ioc, 47 const char *hostname) 48 { 49 trace_migration_set_outgoing_channel( 50 ioc, object_get_typename(OBJECT(ioc)), hostname); 51 52 if (s->parameters.tls_creds && 53 *s->parameters.tls_creds && 54 !object_dynamic_cast(OBJECT(ioc), 55 TYPE_QIO_CHANNEL_TLS)) { 56 Error *local_err = NULL; 57 migration_tls_channel_connect(s, ioc, hostname, &local_err); 58 if (local_err) { 59 migrate_fd_error(s, local_err); 60 error_free(local_err); 61 } 62 } else { 63 QEMUFile *f = qemu_fopen_channel_output(ioc); 64 65 s->to_dst_file = f; 66 67 migrate_fd_connect(s); 68 } 69 } 70