1 /*
2 * Copyright (c) 2022 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
16 #include "trans_channel_limit.h"
17
18 #include <securec.h>
19
20 #include "anonymizer.h"
21 #include "permission_entry.h"
22 #include "regex.h"
23 #include "softbus_def.h"
24 #include "softbus_errcode.h"
25 #include "trans_log.h"
26
27 typedef struct {
28 const char *sessionName;
29 bool regexp;
30 } SessionWhiteList;
31
32 static const SessionWhiteList g_sessionWhiteList[] = {
33 {
34 .sessionName = "ohos.distributedhardware.devicemanager.resident",
35 .regexp = false,
36 },
37 {
38 .sessionName = "com.huawei.devicegroupmanage",
39 .regexp = false,
40 },
41 {
42 .sessionName = "IShareAuthSession",
43 .regexp = false,
44 },
45 {
46 .sessionName = "com.huawei.devicemanager.resident",
47 .regexp = false,
48 },
49 {
50 .sessionName = "com.huawei.plrdtest.dsoftbus",
51 .regexp = false,
52 },
53 {
54 .sessionName = "com.huawei.*CastPlusDiscoveryModule",
55 .regexp = true,
56 },
57 {
58 .sessionName = "com.huawei.dmsdp+dmsdp",
59 .regexp = false,
60 },
61 {
62 .sessionName = "com.huawei.devicemanager.dynamic",
63 .regexp = false,
64 },
65 {
66 .sessionName = "ohos.distributedhardware.devicemanager.pinholder",
67 .regexp = false,
68 }
69 };
70
71 #define NO_PKG_NAME_SESSION_WHITE_LIST_NUM (1)
72 static char g_noPkgNameSessionWhiteList[NO_PKG_NAME_SESSION_WHITE_LIST_NUM][SESSION_NAME_SIZE_MAX] = {
73 "com.huawei.devicemanager.resident",
74 };
75
CheckSessionNameValidOnAuthChannel(const char * sessionName)76 bool CheckSessionNameValidOnAuthChannel(const char *sessionName)
77 {
78 if (sessionName == NULL) {
79 return false;
80 }
81
82 uint32_t count = sizeof(g_sessionWhiteList) / sizeof(g_sessionWhiteList[0]);
83 for (uint32_t index = 0; index < count; ++index) {
84 if (CompareString(g_sessionWhiteList[index].sessionName, sessionName,
85 g_sessionWhiteList[index].regexp) == SOFTBUS_OK) {
86 return true;
87 }
88 }
89 char *tmpName = NULL;
90 Anonymize(sessionName, &tmpName);
91 TRANS_LOGE(TRANS_CTRL,
92 "auth channel sessionName invalid. sessionName=%{public}s", tmpName);
93 AnonymizeFree(tmpName);
94 return false;
95 }
96
IsNoPkgNameSession(const char * sessionName)97 bool IsNoPkgNameSession(const char *sessionName)
98 {
99 if (sessionName == NULL) {
100 return false;
101 }
102
103 uint16_t index = 0;
104 size_t len = 0;
105 for (; index < NO_PKG_NAME_SESSION_WHITE_LIST_NUM; ++index) {
106 len = strnlen(g_noPkgNameSessionWhiteList[index], SESSION_NAME_SIZE_MAX);
107 if (strncmp(sessionName, g_noPkgNameSessionWhiteList[index], len) == 0) {
108 return true;
109 }
110 }
111
112 return false;
113 }
114