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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* Copyright (C) 2022 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.
*/
#if defined(TRUSTY_USERSPACE)
#include <openssl/rand.h>
#include <trusty_ipc.h>
#else
#include <lib/rand/rand.h>
#endif
#include <binder/Common.h>
#include <binder/RpcTransportTipcTrusty.h>
#include <log/log.h>
#include <trusty_log.h>
#include "../OS.h"
#include "TrustyStatus.h"
#include <cstdarg>
using android::binder::borrowed_fd;
using android::binder::unique_fd;
namespace android::binder::os {
void trace_begin(uint64_t, const char*) {}
void trace_end(uint64_t) {}
void trace_int(uint64_t, const char*, int32_t) {}
uint64_t GetThreadId() {
return 0;
}
bool report_sysprop_change() {
return false;
}
status_t setNonBlocking(borrowed_fd /*fd*/) {
// Trusty IPC syscalls are all non-blocking by default.
return OK;
}
status_t getRandomBytes(uint8_t* data, size_t size) {
#if defined(TRUSTY_USERSPACE)
int res = RAND_bytes(data, size);
return res == 1 ? OK : UNKNOWN_ERROR;
#else
int res = rand_get_bytes(data, size);
return res == 0 ? OK : UNKNOWN_ERROR;
#endif // TRUSTY_USERSPACE
}
status_t dupFileDescriptor(int oldFd, int* newFd) {
int res = dup(oldFd);
if (res < 0) {
return statusFromTrusty(res);
}
*newFd = res;
return OK;
}
std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory() {
return RpcTransportCtxFactoryTipcTrusty::make();
}
ssize_t sendMessageOnSocket(
const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
const std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
errno = ENOTSUP;
return -1;
}
ssize_t receiveMessageFromSocket(
const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
errno = ENOTSUP;
return -1;
}
} // namespace android::binder::os
LIBBINDER_EXPORTED int __android_log_print(int prio [[maybe_unused]], const char* tag,
const char* fmt, ...) {
#ifdef TRUSTY_USERSPACE
#define trusty_tlog _tlog
#define trusty_vtlog _vtlog
#else
// mapping taken from kernel trusty_log.h (TLOGx)
int kernelLogLevel;
if (prio <= ANDROID_LOG_DEBUG) {
kernelLogLevel = LK_DEBUGLEVEL_ALWAYS;
} else if (prio == ANDROID_LOG_INFO) {
kernelLogLevel = LK_DEBUGLEVEL_SPEW;
} else if (prio == ANDROID_LOG_WARN) {
kernelLogLevel = LK_DEBUGLEVEL_INFO;
} else if (prio == ANDROID_LOG_ERROR) {
kernelLogLevel = LK_DEBUGLEVEL_CRITICAL;
} else { /* prio >= ANDROID_LOG_FATAL */
kernelLogLevel = LK_DEBUGLEVEL_CRITICAL;
}
#if LK_DEBUGLEVEL_NO_ALIASES
auto LK_DEBUGLEVEL_kernelLogLevel = kernelLogLevel;
#endif
#define trusty_tlog(...) _tlog(kernelLogLevel, __VA_ARGS__)
#define trusty_vtlog(...) _vtlog(kernelLogLevel, __VA_ARGS__)
#endif
va_list args;
va_start(args, fmt);
trusty_tlog((tag[0] == '\0') ? "libbinder" : "libbinder-");
trusty_vtlog(fmt, args);
va_end(args);
return 1;
}
|
