platform_system_core/trusty/libtrusty/trusty.c

62 lines
1.4 KiB
C

/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "libtrusty"
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <log/log.h>
#include "tipc_ioctl.h"
int tipc_connect(const char *dev_name, const char *srv_name)
{
int fd;
int rc;
fd = open(dev_name, O_RDWR);
if (fd < 0) {
rc = -errno;
ALOGE("%s: cannot open tipc device \"%s\": %s\n",
__func__, dev_name, strerror(errno));
return rc < 0 ? rc : -1;
}
rc = ioctl(fd, TIPC_IOC_CONNECT, srv_name);
if (rc < 0) {
rc = -errno;
ALOGE("%s: can't connect to tipc service \"%s\" (err=%d)\n",
__func__, srv_name, errno);
close(fd);
return rc < 0 ? rc : -1;
}
ALOGV("%s: connected to \"%s\" fd %d\n", __func__, srv_name, fd);
return fd;
}
void tipc_close(int fd)
{
close(fd);
}