blob: 15ede2b5b69ffb3fc41aefc27668f99877314471 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* Copyright (C) 2011 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.
*/
#include <cutils/sockets.h>
#include <log/log.h>
#ifdef HAVE_ANDROID_OS
/* For the socket trust (credentials) check */
#include <private/android_filesystem_config.h>
#define __android_unused
#else
#define __android_unused __attribute__((__unused__))
#endif
bool socket_peer_is_trusted(int fd __android_unused)
{
#ifdef HAVE_ANDROID_OS
struct ucred cr;
socklen_t len = sizeof(cr);
int n = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cr, &len);
if (n != 0) {
ALOGE("could not get socket credentials: %s\n", strerror(errno));
return false;
}
if ((cr.uid != AID_ROOT) && (cr.uid != AID_SHELL)) {
ALOGE("untrusted userid on other end of socket: userid %d\n", cr.uid);
return false;
}
#endif
return true;
}
|
