1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #include "qos_common.h"
16 #include <cstdio>
17 #include <cstdlib>
18 #include <unistd.h>
19 #include <sys/ioctl.h>
20 #include <fcntl.h>
21 #include "rme_log_domain.h"
22
23 #undef LOG_TAG
24 #define LOG_TAG "qos_manager"
25
26 constexpr unsigned int AF_QOS_DELEGATED = 0x0001;
27
28 namespace OHOS {
29 namespace QosCommon {
30
TrivalOpenAuthCtrlNode(void)31 static int TrivalOpenAuthCtrlNode(void)
32 {
33 char fileName[] = "/dev/auth_ctrl";
34 FILE* f = fopen(fileName, "r+");
35 if (f == nullptr) {
36 return -1;
37 }
38 int fd = fileno(f);
39 return fd;
40 }
41
AuthEnable(int pid,unsigned int flag,unsigned int status)42 int AuthEnable(int pid, unsigned int flag, unsigned int status)
43 {
44 struct AuthCtrlData data;
45 int fd;
46 int ret;
47
48 fd = TrivalOpenAuthCtrlNode();
49 if (fd < 0) {
50 RME_LOGE("thread %{public}d belong to user %{public}d open auth node failed\n", gettid(), getuid());
51 return fd;
52 }
53
54 data.pid = pid;
55 data.rtgFlag = flag;
56 data.qosFlag = AF_QOS_DELEGATED;
57 data.status = status;
58 data.type = AUTH_ENABLE;
59
60 ret = ioctl(fd, BASIC_AUTH_CTRL_OPERATION, &data);
61 if (ret < 0) {
62 RME_LOGE("auth enable failed for pid %{public}d with status %{public}u\n", pid, status);
63 }
64 FILE* f = fdopen(fd, "r+");
65 if (f != nullptr) {
66 fclose(f);
67 }
68 return ret;
69 }
70
AuthPause(int pid)71 int AuthPause(int pid)
72 {
73 struct AuthCtrlData data;
74 int fd;
75 int ret;
76
77 fd = TrivalOpenAuthCtrlNode();
78 if (fd < 0) {
79 RME_LOGE("thread %{public}d belong to user %{public}d open auth node failed\n", gettid(), getuid());
80 return fd;
81 }
82
83 data.pid = pid;
84 data.rtgFlag = 0;
85 data.qosFlag = AF_QOS_DELEGATED;
86 data.status = AUTH_STATUS_BACKGROUND;
87 data.type = AUTH_SWITCH;
88
89 ret = ioctl(fd, BASIC_AUTH_CTRL_OPERATION, &data);
90 if (ret < 0) {
91 RME_LOGE("auth pause failed for pid %{public}d\n", pid);
92 }
93 FILE* f = fdopen(fd, "r+");
94 if (f != nullptr) {
95 fclose(f);
96 }
97 return ret;
98 }
99
AuthDelete(int pid)100 int AuthDelete(int pid)
101 {
102 struct AuthCtrlData data;
103 int fd;
104 int ret;
105
106 fd = TrivalOpenAuthCtrlNode();
107 if (fd < 0) {
108 RME_LOGE("thread %{public}d belong to user %{public}d open auth node failed\n", gettid(), getuid());
109 return fd;
110 }
111
112 data.pid = pid;
113 data.type = AUTH_DELETE;
114
115 ret = ioctl(fd, BASIC_AUTH_CTRL_OPERATION, &data);
116 if (ret < 0) {
117 RME_LOGE("auth delete failed for pid %{public}d\n", pid);
118 }
119 FILE* f = fdopen(fd, "r+");
120 if (f != nullptr) {
121 fclose(f);
122 }
123 return ret;
124 }
125
126 } // namespace QosCommon
127 } // namespace OHOS