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nbd/client-connection: add possibility of negotiation

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Add arguments and logic to support nbd negotiation in the same thread
after successful connection.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210610100802.5888-20-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-06-10 13:07:49 +03:00 • committed by Eric Blake
parent e70da5ff64
commit 130d49baa5
3 changed files with 109 additions and 9 deletions
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9
include/block/nbd.h
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@ -409,11 +409,16 @@ const char *nbd_err_lookup(int err);
/* nbd/client-connection.c */
typedef struct NBDClientConnection NBDClientConnection;
NBDClientConnection *nbd_client_connection_new(const SocketAddress *saddr);
NBDClientConnection *nbd_client_connection_new(const SocketAddress *saddr,
bool do_negotiation,
const char *export_name,
const char *x_dirty_bitmap,
QCryptoTLSCreds *tlscreds);
void nbd_client_connection_release(NBDClientConnection *conn);
QIOChannelSocket *coroutine_fn
nbd_co_establish_connection(NBDClientConnection *conn, Error **errp);
nbd_co_establish_connection(NBDClientConnection *conn, NBDExportInfo *info,
QIOChannel **ioc, Error **errp);
void coroutine_fn nbd_co_establish_connection_cancel(NBDClientConnection *conn);