blktap2: The tap-ctl userspace control utility and library.

Tapdisk control in userspace, a replacement for the original blktap2
control stack, which had to pass a kernel space interface based on
sysfs nodes.

All tapdisk processes listen for commands on a unix stream socket. The
control library supports scanning the socket namespace for running
tapdisks, VBD minors allocated, associated images and state inquiry.

Control operations include allocating/releasing devices, spawning
tapdisks, opening/closing images, attaching disk images to
devices. disk pause/resume operations and runtime switching of disk
images.

Signed-off-by: Jake Wires <jake.wires@citrix.com>
Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/tools/blktap2/drivers/tapdisk-server.h b/tools/blktap2/drivers/tapdisk-server.h
index f401b049b2..d9c1a03bb5 100644
--- a/tools/blktap2/drivers/tapdisk-server.h
+++ b/tools/blktap2/drivers/tapdisk-server.h
@@ -28,6 +28,7 @@
 #ifndef _TAPDISK_SERVER_H_
 #define _TAPDISK_SERVER_H_
 
+#include "list.h"
 #include "tapdisk-vbd.h"
 #include "tapdisk-queue.h"
 
@@ -35,6 +36,7 @@ struct tap_disk *tapdisk_server_find_driver_interface(int);
 
 td_image_t *tapdisk_server_get_shared_image(td_image_t *);
 
+struct list_head *tapdisk_server_get_all_vbds(void);
 td_vbd_t *tapdisk_server_get_vbd(td_uuid_t);
 void tapdisk_server_add_vbd(td_vbd_t *);
 void tapdisk_server_remove_vbd(td_vbd_t *);
@@ -47,8 +49,11 @@ event_id_t tapdisk_server_register_event(char, int, int, event_cb_t, void *);
 void tapdisk_server_unregister_event(event_id_t);
 void tapdisk_server_set_max_timeout(int);
 
+int tapdisk_server_init(void);
 int tapdisk_server_initialize(void);
+int tapdisk_server_complete(void);
 int tapdisk_server_run(void);
+void tapdisk_server_iterate(void);
 
 #define TAPDISK_TIOCBS              (TAPDISK_DATA_REQUESTS + 50)