1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "libtrusty"
18
19 #include <errno.h>
20 #include <fcntl.h>
21 #include <stdbool.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <sys/ioctl.h>
26 #include <unistd.h>
27
28 #include <log/log.h>
29
30 #include "tipc_ioctl.h"
31
tipc_connect(const char * dev_name,const char * srv_name)32 int tipc_connect(const char *dev_name, const char *srv_name)
33 {
34 int fd;
35 int rc;
36
37 fd = open(dev_name, O_RDWR);
38 if (fd < 0) {
39 rc = -errno;
40 ALOGE("%s: cannot open tipc device \"%s\": %s\n",
41 __func__, dev_name, strerror(errno));
42 return rc < 0 ? rc : -1;
43 }
44
45 rc = ioctl(fd, TIPC_IOC_CONNECT, srv_name);
46 if (rc < 0) {
47 rc = -errno;
48 ALOGE("%s: can't connect to tipc service \"%s\" (err=%d)\n",
49 __func__, srv_name, errno);
50 close(fd);
51 return rc < 0 ? rc : -1;
52 }
53
54 ALOGV("%s: connected to \"%s\" fd %d\n", __func__, srv_name, fd);
55 return fd;
56 }
57
tipc_close(int fd)58 void tipc_close(int fd)
59 {
60 close(fd);
61 }
62