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authorDaniel P. Berrange <berrange@redhat.com>2016-04-27 11:05:16 +0100
committerAmit Shah <amit.shah@redhat.com>2016-05-26 11:32:13 +0530
commite122636562218b3d442cd2cd18fbc188dd9ce709 (patch)
tree741fca3808aee74c9cdb6d93e3e2323367299345 /migration/Makefile.objs
parent69ef1f36b0f882fc5ba9491fb272fa5f83ac1d3d (diff)
migration: add support for encrypting data with TLS
This extends the migration_set_incoming_channel and migration_set_outgoing_channel methods so that they will automatically wrap the QIOChannel in a QIOChannelTLS instance if TLS credentials are configured in the migration parameters. This allows TLS to work for tcp, unix, fd and exec migration protocols. It does not (currently) work for RDMA since it does not use these APIs, but it is unlikely that TLS would be desired with RDMA anyway since it would degrade the performance to that seen with TCP defeating the purpose of using RDMA. On the target host, QEMU would be launched with a set of TLS credentials for a server endpoint $ qemu-system-x86_64 -monitor stdio -incoming defer \ -object tls-creds-x509,dir=/home/berrange/security/qemutls,endpoint=server,id=tls0 \ ...other args... To enable incoming TLS migration 2 monitor commands are then used (qemu) migrate_set_str_parameter tls-creds tls0 (qemu) migrate_incoming tcp:myhostname:9000 On the source host, QEMU is launched in a similar manner but using client endpoint credentials $ qemu-system-x86_64 -monitor stdio \ -object tls-creds-x509,dir=/home/berrange/security/qemutls,endpoint=client,id=tls0 \ ...other args... To enable outgoing TLS migration 2 monitor commands are then used (qemu) migrate_set_str_parameter tls-creds tls0 (qemu) migrate tcp:otherhostname:9000 Thanks to earlier improvements to error reporting, TLS errors can be seen 'info migrate' when doing a detached migration. For example: (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: off Migration status: failed total time: 0 milliseconds error description: TLS handshake failed: The TLS connection was non-properly terminated. Or (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: off Migration status: failed total time: 0 milliseconds error description: Certificate does not match the hostname localhost Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1461751518-12128-27-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
Diffstat (limited to 'migration/Makefile.objs')
-rw-r--r--migration/Makefile.objs1
1 files changed, 1 insertions, 0 deletions
diff --git a/migration/Makefile.objs b/migration/Makefile.objs
index 7e1bec22f5..30ad945918 100644
--- a/migration/Makefile.objs
+++ b/migration/Makefile.objs
@@ -1,4 +1,5 @@
common-obj-y += migration.o socket.o fd.o exec.o
+common-obj-y += tls.o
common-obj-y += vmstate.o
common-obj-y += qemu-file.o
common-obj-y += qemu-file-channel.o