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 <string.h>
40 : : #include <getopt.h>
41 : :
42 : : #include "tap-ctl.h"
43 : :
44 : : int
45 : 0 : tap_ctl_open(const int id, const int minor, const char *params, int flags,
46 : : const int prt_minor, const char *secondary, int timeout,
47 : : const char* logpath, uint8_t key_size, uint8_t *encryption_key)
48 : : {
49 : : int err;
50 : : tapdisk_message_t message;
51 : :
52 : : memset(&message, 0, sizeof(message));
53 : 0 : message.type = TAPDISK_MESSAGE_OPEN;
54 : 0 : message.cookie = minor;
55 : 0 : message.u.params.devnum = minor;
56 : 0 : message.u.params.prt_devnum = prt_minor;
57 : 0 : message.u.params.req_timeout = timeout;
58 : 0 : message.u.params.flags = flags;
59 : :
60 : 0 : err = snprintf(message.u.params.path,
61 : : sizeof(message.u.params.path) - 1, "%s", params);
62 : 0 : if (err >= sizeof(message.u.params.path)) {
63 : : EPRINTF("name too long\n");
64 : 0 : return ENAMETOOLONG;
65 : : }
66 : :
67 : 0 : if (secondary) {
68 : 0 : err = snprintf(message.u.params.secondary,
69 : : sizeof(message.u.params.secondary) - 1, "%s",
70 : : secondary);
71 : 0 : if (err >= sizeof(message.u.params.secondary)) {
72 : : EPRINTF("secondary image name too long\n");
73 : : return ENAMETOOLONG;
74 : : }
75 : : }
76 : 0 : if (flags & (TAPDISK_MESSAGE_FLAG_ADD_LOG | TAPDISK_MESSAGE_FLAG_OPEN_ENCRYPTED)) {
77 : 0 : err = tap_ctl_connect_send_receive_ex(
78 : : id, &message, logpath, key_size, encryption_key, NULL);
79 : : }
80 : : else {
81 : 0 : err = tap_ctl_connect_send_and_receive(id, &message, NULL);
82 : : }
83 : :
84 : 0 : if (encryption_key)
85 : 0 : free(encryption_key);
86 : :
87 : 0 : if (err)
88 : : return err;
89 : :
90 : 0 : switch (message.type) {
91 : : case TAPDISK_MESSAGE_OPEN_RSP:
92 : : break;
93 : : case TAPDISK_MESSAGE_ERROR:
94 : 0 : err = -message.u.response.error;
95 : 0 : EPRINTF("open failed: %s\n", strerror(-err));
96 : : break;
97 : : default:
98 : 0 : EPRINTF("got unexpected result '%s' from %d\n",
99 : : tapdisk_message_name(message.type), id);
100 : : err = EINVAL;
101 : : }
102 : :
103 : 0 : return err;
104 : : }
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