NAME

       nbd_set_uri_allow_tls - set the allowed TLS settings in NBD URIs

SYNOPSIS

        #include <libnbd.h>

        int nbd_set_uri_allow_tls (struct nbd_handle *h, int tls);

DESCRIPTION

       Set which TLS settings are allowed to appear in NBD URIs.  The default is to allow either
       non-TLS or TLS URIs.

       The "tls" parameter can be:

       "LIBNBD_TLS_DISABLE"
           TLS URIs are not permitted, ie. a URI such as "nbds://..."  will be rejected.

       "LIBNBD_TLS_ALLOW"
           This is the default.  TLS may be used or not, depending on whether the URI uses "nbds"
           or "nbd".

       "LIBNBD_TLS_REQUIRE"
           TLS URIs are required.  All URIs must use "nbds".

RETURN VALUE

       If the call is successful the function returns 0.

ERRORS

       On error "-1" is returned.

       Refer to "ERROR HANDLING" in libnbd(3) for how to get further details of the error.

HANDLE STATE

       The handle must be newly created, otherwise this call will return an error.

VERSION

       This function first appeared in libnbd 1.2.

       If you need to test if this function is available at compile time check if the following
       macro is defined:

        #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_TLS 1

SEE ALSO

       nbd_connect_uri(3), nbd_create(3), nbd_set_uri_allow_transports(3), libnbd(3).

AUTHORS

       Eric Blake

       Richard W.M. Jones

COPYRIGHT

       Copyright (C) 2019-2021 Red Hat Inc.

LICENSE

       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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
       Floor, Boston, MA 02110-1301 USA