Branch data Line data Source code
1 : : /*
2 : : * Copyright (c) 2016, Citrix Systems, Inc.
3 : : *
4 : : * All rights reserved.
5 : : *
6 : : * Redistribution and use in source and binary forms, with or without
7 : : * modification, are permitted provided that the following conditions are met:
8 : : *
9 : : * 1. Redistributions of source code must retain the above copyright
10 : : * notice, this list of conditions and the following disclaimer.
11 : : * 2. Redistributions in binary form must reproduce the above copyright
12 : : * notice, this list of conditions and the following disclaimer in the
13 : : * documentation and/or other materials provided with the distribution.
14 : : * 3. Neither the name of the copyright holder nor the names of its
15 : : * contributors may be used to endorse or promote products derived from
16 : : * this software without specific prior written permission.
17 : : *
18 : : * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 : : * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 : : * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 : : * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
22 : : * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 : : * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 : : * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 : : * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 : : * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 : : * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 : : * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 : : */
30 : :
31 : : #ifdef HAVE_CONFIG_H
32 : : #include "config.h"
33 : : #endif
34 : :
35 : : #include <stdio.h>
36 : : #include <errno.h>
37 : : #include <stdlib.h>
38 : : #include <unistd.h>
39 : : #include <getopt.h>
40 : :
41 : : #include "tap-ctl.h"
42 : : #include "blktap.h"
43 : :
44 : : int
45 : 0 : tap_ctl_create(const char *params, char **devname, int flags, int parent_minor,
46 : : char *secondary, int timeout, const char *logpath)
47 : : {
48 : : int err, id, minor;
49 : :
50 : 0 : err = tap_ctl_allocate(&minor, devname);
51 : 0 : if (err)
52 : 0 : return err;
53 : :
54 : 0 : id = tap_ctl_spawn();
55 : 0 : if (id < 0) {
56 : : err = id;
57 : : goto destroy;
58 : : }
59 : :
60 : 0 : err = tap_ctl_attach(id, minor);
61 : 0 : if (err)
62 : : goto destroy;
63 : :
64 : 0 : err = tap_ctl_open(id, minor, params, flags, parent_minor, secondary,
65 : : timeout, logpath, 0, NULL);
66 : 0 : if (err)
67 : : goto detach;
68 : :
69 : : return 0;
70 : :
71 : : detach:
72 : 0 : tap_ctl_detach(id, minor);
73 : : destroy:
74 : 0 : tap_ctl_free(minor);
75 : : return err;
76 : : }
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