migration: Export tls.c functions in its own file

Just for the functions exported from tls.c.  Notice that we can't
remove the migration/migration.h include from tls.c because it access
directly MigrationState for the tls params.
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>

include/migration/migration.h

@@ -18,7 +18,6 @@
 #include "qemu-common.h"
 #include "qemu/thread.h"
 #include "qemu/notify.h"
-#include "io/channel.h"
 #include "qapi-types.h"
 #include "exec/cpu-common.h"
 #include "qemu/coroutine_int.h"
@@ -152,15 +151,6 @@ void migration_fd_process_incoming(QEMUFile *f);
 
 void qemu_start_incoming_migration(const char *uri, Error **errp);
 
-void migration_tls_channel_process_incoming(MigrationState *s,
-                                            QIOChannel *ioc,
-                                            Error **errp);
-
-void migration_tls_channel_connect(MigrationState *s,
-                                   QIOChannel *ioc,
-                                   const char *hostname,
-                                   Error **errp);
-
 uint64_t migrate_max_downtime(void);
 
 void rdma_start_outgoing_migration(void *opaque, const char *host_port, Error **errp);

migration/channel.c

@@ -12,6 +12,7 @@
 
 #include "qemu/osdep.h"
 #include "channel.h"
+#include "tls.h"
 #include "migration/migration.h"
 #include "qemu-file-channel.h"
 #include "trace.h"

migration/migration.c

@@ -43,7 +43,6 @@
 #include "exec/address-spaces.h"
 #include "exec/target_page.h"
 #include "io/channel-buffer.h"
-#include "io/channel-tls.h"
 #include "migration/colo.h"
 
 #define MAX_THROTTLE  (32 << 20)      /* Migration transfer speed throttling */

migration/tls.c

@@ -21,6 +21,7 @@
 #include "qemu/osdep.h"
 #include "channel.h"
 #include "migration/migration.h"
+#include "tls.h"
 #include "io/channel-tls.h"
 #include "crypto/tlscreds.h"
 #include "qemu/error-report.h"

migration/tls.h

+/*
+ * QEMU migration TLS support
+ *
+ * Copyright (c) 2015 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef QEMU_MIGRATION_TLS_H
+#define QEMU_MIGRATION_TLS_H
+
+#include "io/channel.h"
+
+void migration_tls_channel_process_incoming(MigrationState *s,
+                                            QIOChannel *ioc,
+                                            Error **errp);
+
+void migration_tls_channel_connect(MigrationState *s,
+                                   QIOChannel *ioc,
+                                   const char *hostname,
+                                   Error **errp);
+#endif