1 /*
2  * Copyright (c) 2021-2024 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 "bundle_permission_mgr.h"
17 
18 #include "app_log_tag_wrapper.h"
19 #include "app_log_wrapper.h"
20 #include "bundle_mgr_service.h"
21 #include "bundle_parser.h"
22 #include "ipc_skeleton.h"
23 #include "parameter.h"
24 #include "privacy_kit.h"
25 #include "tokenid_kit.h"
26 
27 namespace OHOS {
28 namespace AppExecFwk {
29 namespace {
30 // pre bundle profile
31 constexpr const char* INSTALL_LIST_PERMISSIONS_CONFIG = "/etc/app/install_list_permissions.json";
32 constexpr const char* SCENEBOARD_BUNDLE_NAME = "com.ohos.sceneboard";
33 // install list permissions file
34 constexpr const char* INSTALL_LIST_PERMISSIONS_FILE_PATH = "/system/etc/app/install_list_permissions.json";
35 constexpr int16_t BASE_API_VERSION = 1000;
36 }
37 
38 using namespace OHOS::Security;
39 std::map<std::string, DefaultPermission> BundlePermissionMgr::defaultPermissions_;
40 
Init()41 bool BundlePermissionMgr::Init()
42 {
43     std::vector<std::string> permissionFileList;
44 #ifdef USE_PRE_BUNDLE_PROFILE
45     std::vector<std::string> rootDirList;
46     BMSEventHandler::GetPreInstallRootDirList(rootDirList);
47     if (rootDirList.empty()) {
48         LOG_E(BMS_TAG_DEFAULT, "rootDirList is empty");
49         return false;
50     }
51     for (const auto &item : rootDirList) {
52         permissionFileList.push_back(item + INSTALL_LIST_PERMISSIONS_CONFIG);
53     }
54 #else
55     permissionFileList.emplace_back(INSTALL_LIST_PERMISSIONS_FILE_PATH);
56 #endif
57     BundleParser bundleParser;
58     std::set<DefaultPermission> permissions;
59     for (const auto &permissionFile : permissionFileList) {
60         if (bundleParser.ParseDefaultPermission(permissionFile, permissions) != ERR_OK) {
61             LOG_D(BMS_TAG_DEFAULT, "BundlePermissionMgr::Init failed");
62             continue;
63         }
64     }
65 
66     defaultPermissions_.clear();
67     for (const auto &permission : permissions) {
68         defaultPermissions_.try_emplace(permission.bundleName, permission);
69     }
70     LOG_D(BMS_TAG_DEFAULT, "BundlePermissionMgr::Init success");
71     return true;
72 }
73 
UnInit()74 void BundlePermissionMgr::UnInit()
75 {
76     LOG_D(BMS_TAG_DEFAULT, "BundlePermissionMgr::UnInit");
77     defaultPermissions_.clear();
78 }
79 
ConvertPermissionDef( const AccessToken::PermissionDef &permDef, PermissionDef &permissionDef)80 void BundlePermissionMgr::ConvertPermissionDef(
81     const AccessToken::PermissionDef &permDef, PermissionDef &permissionDef)
82 {
83     permissionDef.permissionName = permDef.permissionName;
84     permissionDef.bundleName = permDef.bundleName;
85     permissionDef.grantMode = permDef.grantMode;
86     permissionDef.availableLevel = permDef.availableLevel;
87     permissionDef.provisionEnable = permDef.provisionEnable;
88     permissionDef.distributedSceneEnable = permDef.distributedSceneEnable;
89     permissionDef.label = permDef.label;
90     permissionDef.labelId = permDef.labelId;
91     permissionDef.description = permDef.description;
92     permissionDef.descriptionId = permDef.descriptionId;
93     permissionDef.availableType = permDef.availableType;
94 }
95 
96 // Convert from the struct DefinePermission that parsed from config.json
ConvertPermissionDef( AccessToken::PermissionDef &permDef, const DefinePermission &definePermission, const std::string &bundleName)97 void BundlePermissionMgr::ConvertPermissionDef(
98     AccessToken::PermissionDef &permDef, const DefinePermission &definePermission, const std::string &bundleName)
99 {
100     permDef.permissionName = definePermission.name;
101     permDef.bundleName = bundleName;
102     permDef.grantMode = [&definePermission]() -> int {
103         if (definePermission.grantMode ==
104             Profile::DEFINEPERMISSION_GRANT_MODE_SYSTEM_GRANT) {
105             return AccessToken::GrantMode::SYSTEM_GRANT;
106         }
107         return AccessToken::GrantMode::USER_GRANT;
108     }();
109 
110     permDef.availableLevel = GetTokenApl(definePermission.availableLevel);
111     permDef.provisionEnable = definePermission.provisionEnable;
112     permDef.distributedSceneEnable = definePermission.distributedSceneEnable;
113     permDef.label = definePermission.label;
114     permDef.labelId = definePermission.labelId;
115     permDef.description = definePermission.description;
116     permDef.descriptionId = definePermission.descriptionId;
117     permDef.availableType = GetAvailableType(definePermission.availableType);
118 }
119 
GetAvailableType( const std::string &availableType)120 AccessToken::ATokenAvailableTypeEnum BundlePermissionMgr::GetAvailableType(
121     const std::string &availableType)
122 {
123     if (availableType == Profile::DEFINEPERMISSION_AVAILABLE_TYPE_MDM) {
124         return AccessToken::ATokenAvailableTypeEnum::MDM;
125     }
126     return AccessToken::ATokenAvailableTypeEnum::NORMAL;
127 }
128 
GetTokenApl(const std::string &apl)129 AccessToken::ATokenAplEnum BundlePermissionMgr::GetTokenApl(const std::string &apl)
130 {
131     if (apl == Profile::AVAILABLELEVEL_SYSTEM_CORE) {
132         return AccessToken::ATokenAplEnum::APL_SYSTEM_CORE;
133     }
134     if (apl == Profile::AVAILABLELEVEL_SYSTEM_BASIC) {
135         return AccessToken::ATokenAplEnum::APL_SYSTEM_BASIC;
136     }
137     return AccessToken::ATokenAplEnum::APL_NORMAL;
138 }
139 
CreateHapPolicyParam(const InnerBundleInfo &innerBundleInfo)140 AccessToken::HapPolicyParams BundlePermissionMgr::CreateHapPolicyParam(const InnerBundleInfo &innerBundleInfo)
141 {
142     AccessToken::HapPolicyParams hapPolicy;
143     std::string apl = innerBundleInfo.GetAppPrivilegeLevel();
144     std::vector<AccessToken::PermissionDef> permDef = GetPermissionDefList(innerBundleInfo);
145     hapPolicy.apl = GetTokenApl(apl);
146     hapPolicy.domain = "domain";
147     hapPolicy.permList = permDef;
148     hapPolicy.permStateList = GetPermissionStateFullList(innerBundleInfo);
149     hapPolicy.aclRequestedList = innerBundleInfo.GetAllowedAcls();
150     LOG_NOFUNC_I(BMS_TAG_DEFAULT, "-n %{public}s apl:%{public}s req permission size:%{public}zu, acls size:%{public}zu",
151         innerBundleInfo.GetBundleName().c_str(), apl.c_str(), hapPolicy.permStateList.size(),
152         hapPolicy.aclRequestedList.size());
153     // default permission list
154     DefaultPermission permission;
155     if (!GetDefaultPermission(innerBundleInfo.GetBundleName(), permission)) {
156         return hapPolicy;
157     }
158 
159 #ifdef USE_PRE_BUNDLE_PROFILE
160     if (!MatchSignature(permission, innerBundleInfo.GetCertificateFingerprint()) &&
161         !MatchSignature(permission, innerBundleInfo.GetAppId()) &&
162         !MatchSignature(permission, innerBundleInfo.GetAppIdentifier()) &&
163         !MatchSignature(permission, innerBundleInfo.GetOldAppIds())) {
164         LOG_W(BMS_TAG_DEFAULT, "bundleName:%{public}s MatchSignature failed", innerBundleInfo.GetBundleName().c_str());
165         return hapPolicy;
166     }
167 #endif
168     for (const auto &perm: innerBundleInfo.GetAllRequestPermissions()) {
169         bool userCancellable = false;
170         if (!CheckPermissionInDefaultPermissions(permission, perm.name, userCancellable)) {
171             continue;
172         }
173         AccessToken::PreAuthorizationInfo preAuthorizationInfo;
174         preAuthorizationInfo.permissionName = perm.name;
175         preAuthorizationInfo.userCancelable = userCancellable;
176         hapPolicy.preAuthorizationInfo.emplace_back(preAuthorizationInfo);
177     }
178     LOG_I(BMS_TAG_DEFAULT, "end, preAuthorizationInfo size :%{public}zu", hapPolicy.preAuthorizationInfo.size());
179     return hapPolicy;
180 }
181 
DeleteAccessTokenId(const AccessToken::AccessTokenID tokenId)182 int32_t BundlePermissionMgr::DeleteAccessTokenId(const AccessToken::AccessTokenID tokenId)
183 {
184     return AccessToken::AccessTokenKit::DeleteToken(tokenId);
185 }
186 
ClearUserGrantedPermissionState(const AccessToken::AccessTokenID tokenId)187 int32_t BundlePermissionMgr::ClearUserGrantedPermissionState(const AccessToken::AccessTokenID tokenId)
188 {
189     return AccessToken::AccessTokenKit::ClearUserGrantedPermissionState(tokenId);
190 }
191 
GetPermissionDefList( const InnerBundleInfo &innerBundleInfo)192 std::vector<AccessToken::PermissionDef> BundlePermissionMgr::GetPermissionDefList(
193     const InnerBundleInfo &innerBundleInfo)
194 {
195     const auto bundleName = innerBundleInfo.GetBundleName();
196     const auto defPermissions = innerBundleInfo.GetAllDefinePermissions();
197     std::vector<AccessToken::PermissionDef> permList;
198     if (!defPermissions.empty()) {
199         for (const auto &defPermission : defPermissions) {
200             AccessToken::PermissionDef perm;
201             LOG_D(BMS_TAG_DEFAULT, "defPermission %{public}s", defPermission.name.c_str());
202             ConvertPermissionDef(perm, defPermission, bundleName);
203             permList.emplace_back(perm);
204         }
205     }
206     return permList;
207 }
208 
GetPermissionStateFullList( const InnerBundleInfo &innerBundleInfo)209 std::vector<AccessToken::PermissionStateFull> BundlePermissionMgr::GetPermissionStateFullList(
210     const InnerBundleInfo &innerBundleInfo)
211 {
212     auto reqPermissions = innerBundleInfo.GetAllRequestPermissions();
213     std::vector<AccessToken::PermissionStateFull> permStateFullList;
214     if (!reqPermissions.empty()) {
215         for (const auto &reqPermission : reqPermissions) {
216             AccessToken::PermissionStateFull perState;
217             perState.permissionName = reqPermission.name;
218             perState.isGeneral = true;
219             perState.resDeviceID.emplace_back(innerBundleInfo.GetBaseApplicationInfo().deviceId);
220             perState.grantStatus.emplace_back(AccessToken::PermissionState::PERMISSION_DENIED);
221             perState.grantFlags.emplace_back(AccessToken::PermissionFlag::PERMISSION_DEFAULT_FLAG);
222             permStateFullList.emplace_back(perState);
223         }
224     } else {
225         LOG_D(BMS_TAG_DEFAULT, "BundlePermissionMgr::GetPermissionStateFullList requestPermission is empty");
226     }
227     return permStateFullList;
228 }
229 
GetAllReqPermissionStateFull(AccessToken::AccessTokenID tokenId, std::vector<AccessToken::PermissionStateFull> &newPermissionState)230 bool BundlePermissionMgr::GetAllReqPermissionStateFull(AccessToken::AccessTokenID tokenId,
231     std::vector<AccessToken::PermissionStateFull> &newPermissionState)
232 {
233     std::vector<AccessToken::PermissionStateFull> userGrantReqPermList;
234     int32_t ret = AccessToken::AccessTokenKit::GetReqPermissions(tokenId, userGrantReqPermList, false);
235     if (ret != AccessToken::AccessTokenKitRet::RET_SUCCESS) {
236         LOG_E(BMS_TAG_DEFAULT, "GetAllReqPermissionStateFull get user grant failed errcode: %{public}d", ret);
237         return false;
238     }
239     std::vector<AccessToken::PermissionStateFull> systemGrantReqPermList;
240     ret = AccessToken::AccessTokenKit::GetReqPermissions(tokenId, systemGrantReqPermList, true);
241     if (ret != AccessToken::AccessTokenKitRet::RET_SUCCESS) {
242         LOG_E(BMS_TAG_DEFAULT, "GetAllReqPermissionStateFull get system grant failed errcode: %{public}d", ret);
243         return false;
244     }
245     newPermissionState = userGrantReqPermList;
246     std::copy(systemGrantReqPermList.begin(), systemGrantReqPermList.end(), std::back_inserter(newPermissionState));
247     return true;
248 }
249 
GetRequestPermissionStates( BundleInfo &bundleInfo, uint32_t tokenId, const std::string deviceId)250 bool BundlePermissionMgr::GetRequestPermissionStates(
251     BundleInfo &bundleInfo, uint32_t tokenId, const std::string deviceId)
252 {
253     std::vector<std::string> requestPermission = bundleInfo.reqPermissions;
254     if (requestPermission.empty()) {
255         LOG_D(BMS_TAG_DEFAULT, "GetRequestPermissionStates requestPermission empty");
256         return true;
257     }
258     std::vector<Security::AccessToken::PermissionStateFull> allPermissionState;
259     if (!GetAllReqPermissionStateFull(tokenId, allPermissionState)) {
260         LOG_W(BMS_TAG_DEFAULT, "BundlePermissionMgr::GetRequestPermissionStates failed");
261     }
262     for (auto &req : requestPermission) {
263         auto iter = std::find_if(allPermissionState.begin(), allPermissionState.end(),
264             [&req](const auto &perm) {
265                 return perm.permissionName == req;
266             });
267         if (iter != allPermissionState.end()) {
268             LOG_D(BMS_TAG_DEFAULT, "GetRequestPermissionStates request permission name: %{public}s", req.c_str());
269             for (std::vector<std::string>::size_type i = 0; i < iter->resDeviceID.size(); i++) {
270                 if (iter->resDeviceID[i] == deviceId) {
271                     bundleInfo.reqPermissionStates.emplace_back(iter->grantStatus[i]);
272                     break;
273                 }
274             }
275         } else {
276             LOG_E(BMS_TAG_DEFAULT, "request permission name : %{public}s is not exit in AccessTokenMgr", req.c_str());
277             bundleInfo.reqPermissionStates.emplace_back(
278                 static_cast<int32_t>(AccessToken::PermissionState::PERMISSION_DENIED));
279         }
280     }
281     return true;
282 }
283 
VerifyCallingPermissionForAll(const std::string &permissionName)284 bool BundlePermissionMgr::VerifyCallingPermissionForAll(const std::string &permissionName)
285 {
286     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
287     LOG_D(BMS_TAG_DEFAULT, "VerifyCallingPermission permission %{public}s, callerToken : %{public}u",
288         permissionName.c_str(), callerToken);
289     if (AccessToken::AccessTokenKit::VerifyAccessToken(callerToken, permissionName) ==
290         AccessToken::PermissionState::PERMISSION_GRANTED) {
291         return true;
292     }
293     LOG_NOFUNC_E(BMS_TAG_DEFAULT, "permission denied caller:%{public}u", callerToken);
294     return false;
295 }
296 
VerifyCallingPermissionsForAll(const std::vector<std::string> &permissionNames)297 bool BundlePermissionMgr::VerifyCallingPermissionsForAll(const std::vector<std::string> &permissionNames)
298 {
299     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
300     for (auto permissionName : permissionNames) {
301         if (AccessToken::AccessTokenKit::VerifyAccessToken(callerToken, permissionName) ==
302             AccessToken::PermissionState::PERMISSION_GRANTED) {
303                 LOG_D(BMS_TAG_DEFAULT, "verify success");
304                 return true;
305             }
306     }
307     std::string errorMessage;
308     for (auto deniedPermission : permissionNames) {
309         errorMessage += deniedPermission + " ";
310     }
311     LOG_NOFUNC_E(BMS_TAG_DEFAULT, "%{public}s denied callerToken:%{public}u", errorMessage.c_str(), callerToken);
312     return false;
313 }
314 
VerifyPermission( const std::string &bundleName, const std::string &permissionName, const int32_t userId)315 int32_t BundlePermissionMgr::VerifyPermission(
316     const std::string &bundleName, const std::string &permissionName, const int32_t userId)
317 {
318     LOG_D(BMS_TAG_DEFAULT, "VerifyPermission bundleName %{public}s, permission %{public}s", bundleName.c_str(),
319         permissionName.c_str());
320     AccessToken::AccessTokenID tokenId = AccessToken::AccessTokenKit::GetHapTokenID(userId,
321         bundleName, 0);
322     return AccessToken::AccessTokenKit::VerifyAccessToken(tokenId, permissionName);
323 }
324 
GetPermissionDef(const std::string &permissionName, PermissionDef &permissionDef)325 ErrCode BundlePermissionMgr::GetPermissionDef(const std::string &permissionName, PermissionDef &permissionDef)
326 {
327     LOG_D(BMS_TAG_DEFAULT, "BundlePermissionMgr::GetPermissionDef permission %{public}s", permissionName.c_str());
328     AccessToken::PermissionDef accessTokenPermDef;
329     int32_t ret = AccessToken::AccessTokenKit::GetDefPermission(permissionName, accessTokenPermDef);
330     if (ret == AccessToken::AccessTokenKitRet::RET_SUCCESS) {
331         ConvertPermissionDef(accessTokenPermDef, permissionDef);
332         return ERR_OK;
333     }
334     return ERR_BUNDLE_MANAGER_QUERY_PERMISSION_DEFINE_FAILED;
335 }
336 
CheckPermissionInDefaultPermissions(const DefaultPermission &defaultPermission, const std::string &permissionName, bool &userCancellable)337 bool BundlePermissionMgr::CheckPermissionInDefaultPermissions(const DefaultPermission &defaultPermission,
338     const std::string &permissionName, bool &userCancellable)
339 {
340     auto &grantPermission = defaultPermission.grantPermission;
341     auto iter = std::find_if(grantPermission.begin(), grantPermission.end(), [&permissionName](const auto &defPerm) {
342             return defPerm.name == permissionName;
343         });
344     if (iter == grantPermission.end()) {
345         LOG_D(BMS_TAG_DEFAULT, "can not find permission(%{public}s)", permissionName.c_str());
346         return false;
347     }
348 
349     userCancellable = iter->userCancellable;
350     return true;
351 }
352 
GetDefaultPermission( const std::string &bundleName, DefaultPermission &permission)353 bool BundlePermissionMgr::GetDefaultPermission(
354     const std::string &bundleName, DefaultPermission &permission)
355 {
356     auto iter = defaultPermissions_.find(bundleName);
357     if (iter == defaultPermissions_.end()) {
358         LOG_NOFUNC_W(BMS_TAG_DEFAULT, "-n %{public}s not exist in defaultPermissions",
359             bundleName.c_str());
360         return false;
361     }
362 
363     permission = iter->second;
364     return true;
365 }
366 
MatchSignature( const DefaultPermission &permission, const std::vector<std::string> &signatures)367 bool BundlePermissionMgr::MatchSignature(
368     const DefaultPermission &permission, const std::vector<std::string> &signatures)
369 {
370     if (permission.appSignature.empty()) {
371         LOG_W(BMS_TAG_DEFAULT, "appSignature is empty");
372         return false;
373     }
374     for (const auto &signature : permission.appSignature) {
375         if (std::find(signatures.begin(), signatures.end(), signature) != signatures.end()) {
376             return true;
377         }
378     }
379 
380     return false;
381 }
382 
MatchSignature( const DefaultPermission &permission, const std::string &signature)383 bool BundlePermissionMgr::MatchSignature(
384     const DefaultPermission &permission, const std::string &signature)
385 {
386     if (permission.appSignature.empty() || signature.empty()) {
387         LOG_W(BMS_TAG_DEFAULT, "appSignature or signature is empty");
388         return false;
389     }
390     return std::find(permission.appSignature.begin(), permission.appSignature.end(),
391         signature) != permission.appSignature.end();
392 }
393 
GetHapApiVersion()394 int32_t BundlePermissionMgr::GetHapApiVersion()
395 {
396     // get appApiVersion from applicationInfo
397     std::string bundleName;
398     auto uid = IPCSkeleton::GetCallingUid();
399     auto userId = uid / Constants::BASE_USER_RANGE;
400     auto dataMgr = DelayedSingleton<BundleMgrService>::GetInstance()->GetDataMgr();
401     if (dataMgr == nullptr) {
402         LOG_E(BMS_TAG_DEFAULT, "DataMgr is nullptr");
403         return Constants::INVALID_API_VERSION;
404     }
405     auto ret = dataMgr->GetBundleNameForUid(uid, bundleName);
406     if (!ret) {
407         LOG_E(BMS_TAG_DEFAULT, "getBundleName failed, uid : %{public}d", uid);
408         return Constants::INVALID_API_VERSION;
409     }
410     ApplicationInfo applicationInfo;
411     auto res = dataMgr->GetApplicationInfoV9(bundleName,
412         static_cast<int32_t>(GetApplicationFlag::GET_APPLICATION_INFO_WITH_DISABLE), userId, applicationInfo);
413     if (res != ERR_OK) {
414         LOG_E(BMS_TAG_DEFAULT, "getApplicationInfo failed");
415         return Constants::INVALID_API_VERSION;
416     }
417     auto appApiVersion = applicationInfo.apiTargetVersion % BASE_API_VERSION;
418     LOG_D(BMS_TAG_DEFAULT, "appApiVersion is %{public}d", appApiVersion);
419     auto systemApiVersion = GetSdkApiVersion();
420     // api version is the minimum value of {appApiVersion, systemApiVersion}
421     return systemApiVersion < appApiVersion ? systemApiVersion :appApiVersion;
422 }
423 
424 // if the api has been system api since it is published, then beginSystemApiVersion can be omitted
VerifySystemApp(int32_t beginSystemApiVersion)425 bool BundlePermissionMgr::VerifySystemApp(int32_t beginSystemApiVersion)
426 {
427     LOG_D(BMS_TAG_DEFAULT, "verifying systemApp");
428     uint64_t accessTokenIdEx = IPCSkeleton::GetCallingFullTokenID();
429     if (Security::AccessToken::TokenIdKit::IsSystemAppByFullTokenID(accessTokenIdEx)) {
430         return true;
431     }
432     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
433     AccessToken::ATokenTypeEnum tokenType = AccessToken::AccessTokenKit::GetTokenTypeFlag(callerToken);
434     LOG_D(BMS_TAG_DEFAULT, "tokenType is %{private}d", tokenType);
435     int32_t callingUid = IPCSkeleton::GetCallingUid();
436     if (tokenType == AccessToken::ATokenTypeEnum::TOKEN_NATIVE ||
437         tokenType == AccessToken::ATokenTypeEnum::TOKEN_SHELL ||
438         callingUid == Constants::ROOT_UID ||
439         callingUid == ServiceConstants::SHELL_UID) {
440         LOG_D(BMS_TAG_DEFAULT, "caller tokenType is native, verify success");
441         return true;
442     }
443     if (beginSystemApiVersion != Constants::ALL_VERSIONCODE) {
444         auto apiVersion = GetHapApiVersion();
445         if (apiVersion == Constants::INVALID_API_VERSION) {
446             LOG_E(BMS_TAG_DEFAULT, "get api version failed, system app verification failed");
447             return false;
448         }
449         if (apiVersion < beginSystemApiVersion) {
450             LOG_I(BMS_TAG_DEFAULT, "previous app calling, verify success");
451             return true;
452         }
453     }
454     LOG_E(BMS_TAG_DEFAULT, "system app verification failed");
455     return false;
456 }
457 
IsSystemApp()458 bool BundlePermissionMgr::IsSystemApp()
459 {
460     LOG_D(BMS_TAG_DEFAULT, "verifying systemApp");
461     uint64_t accessTokenIdEx = IPCSkeleton::GetCallingFullTokenID();
462     if (Security::AccessToken::TokenIdKit::IsSystemAppByFullTokenID(accessTokenIdEx)) {
463         return true;
464     }
465     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
466     AccessToken::ATokenTypeEnum tokenType = AccessToken::AccessTokenKit::GetTokenTypeFlag(callerToken);
467     if (tokenType == AccessToken::ATokenTypeEnum::TOKEN_HAP) {
468         LOG_E(BMS_TAG_DEFAULT, "IsSystemApp %{public}d,%{public}d,%{public}u",
469             IPCSkeleton::GetCallingUid(), IPCSkeleton::GetCallingPid(), callerToken);
470         return false;
471     }
472     LOG_D(BMS_TAG_DEFAULT, "caller tokenType is not hap, ignore");
473     return true;
474 }
475 
IsNativeTokenType()476 bool BundlePermissionMgr::IsNativeTokenType()
477 {
478     LOG_D(BMS_TAG_DEFAULT, "begin to verify token type");
479     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
480     AccessToken::ATokenTypeEnum tokenType = AccessToken::AccessTokenKit::GetTokenTypeFlag(callerToken);
481     LOG_D(BMS_TAG_DEFAULT, "tokenType is %{private}d", tokenType);
482     if (tokenType == AccessToken::ATokenTypeEnum::TOKEN_NATIVE
483         || tokenType == AccessToken::ATokenTypeEnum::TOKEN_SHELL) {
484         LOG_D(BMS_TAG_DEFAULT, "caller tokenType is native, verify success");
485         return true;
486     }
487     if (VerifyCallingUid()) {
488         LOG_D(BMS_TAG_DEFAULT, "caller is root or foundation or BMS_UID, verify success");
489         return true;
490     }
491     LOG_E(BMS_TAG_DEFAULT, "caller tokenType not native, verify failed");
492     return false;
493 }
494 
IsShellTokenType()495 bool BundlePermissionMgr::IsShellTokenType()
496 {
497     LOG_D(BMS_TAG_DEFAULT, "IsShellTokenType begin");
498     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
499     AccessToken::ATokenTypeEnum tokenType = AccessToken::AccessTokenKit::GetTokenTypeFlag(callerToken);
500     LOG_D(BMS_TAG_DEFAULT, "tokenType is %{private}d", tokenType);
501     if (tokenType == AccessToken::ATokenTypeEnum::TOKEN_SHELL) {
502         LOG_D(BMS_TAG_DEFAULT, "caller is shell, success");
503         return true;
504     }
505     LOG_I(BMS_TAG_DEFAULT, "caller not shell");
506     return false;
507 }
508 
VerifyCallingUid()509 bool BundlePermissionMgr::VerifyCallingUid()
510 {
511     LOG_D(BMS_TAG_DEFAULT, "begin to verify calling uid");
512     int32_t callingUid = IPCSkeleton::GetCallingUid();
513     LOG_D(BMS_TAG_DEFAULT, "calling uid is %{public}d", callingUid);
514     if (callingUid == Constants::ROOT_UID ||
515         callingUid == Constants::FOUNDATION_UID ||
516         callingUid == ServiceConstants::SHELL_UID ||
517         callingUid == ServiceConstants::BMS_UID) {
518         LOG_D(BMS_TAG_DEFAULT, "caller is root or foundation, verify success");
519         return true;
520     }
521     LOG_E(BMS_TAG_DEFAULT, "verify calling uid failed");
522     return false;
523 }
524 
VerifyPreload(const AAFwk::Want &want)525 bool BundlePermissionMgr::VerifyPreload(const AAFwk::Want &want)
526 {
527     std::string callingBundleName;
528     auto uid = IPCSkeleton::GetCallingUid();
529     auto dataMgr = DelayedSingleton<BundleMgrService>::GetInstance()->GetDataMgr();
530     if (dataMgr == nullptr) {
531         LOG_E(BMS_TAG_DEFAULT, "DataMgr is nullptr");
532         return false;
533     }
534     auto ret = dataMgr->GetBundleNameForUid(uid, callingBundleName);
535     if (!ret) {
536         return BundlePermissionMgr::VerifyCallingPermissionForAll(Constants::PERMISSION_GET_BUNDLE_INFO_PRIVILEGED);
537     }
538     std::string bundleName = want.GetElement().GetBundleName();
539     return bundleName == callingBundleName || callingBundleName == SCENEBOARD_BUNDLE_NAME;
540 }
541 
IsCallingUidValid(int32_t uid)542 bool BundlePermissionMgr::IsCallingUidValid(int32_t uid)
543 {
544     int32_t callingUid = IPCSkeleton::GetCallingUid();
545     if (callingUid == uid) {
546         return true;
547     }
548     LOG_E(BMS_TAG_DEFAULT, "IsCallingUidValid failed, uid = %{public}d, calling uid = %{public}d", uid, callingUid);
549     return false;
550 }
551 
IsSelfCalling()552 bool BundlePermissionMgr::IsSelfCalling()
553 {
554     int32_t callingUid = IPCSkeleton::GetCallingUid();
555     if (callingUid == Constants::FOUNDATION_UID) {
556         return true;
557     }
558     return false;
559 }
560 
VerifyUninstallPermission()561 bool BundlePermissionMgr::VerifyUninstallPermission()
562 {
563     if (!BundlePermissionMgr::IsSelfCalling() &&
564         !BundlePermissionMgr::VerifyCallingPermissionsForAll({Constants::PERMISSION_INSTALL_BUNDLE,
565         ServiceConstants::PERMISSION_UNINSTALL_BUNDLE})) {
566         LOG_E(BMS_TAG_DEFAULT, "uninstall bundle permission denied");
567         return false;
568     }
569     return true;
570 }
571 
VerifyRecoverPermission()572 bool BundlePermissionMgr::VerifyRecoverPermission()
573 {
574     if (!BundlePermissionMgr::IsSelfCalling() &&
575         !BundlePermissionMgr::VerifyCallingPermissionsForAll({Constants::PERMISSION_INSTALL_BUNDLE,
576         ServiceConstants::PERMISSION_RECOVER_BUNDLE})) {
577         LOG_E(BMS_TAG_DEFAULT, "recover bundle permission denied");
578         return false;
579     }
580     return true;
581 }
582 
AddPermissionUsedRecord( const std::string &permission, int32_t successCount, int32_t failCount)583 void BundlePermissionMgr::AddPermissionUsedRecord(
584     const std::string &permission, int32_t successCount, int32_t failCount)
585 {
586     LOG_D(BMS_TAG_DEFAULT, "AddPermissionUsedRecord permission:%{public}s", permission.c_str());
587     AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
588     AccessToken::ATokenTypeEnum tokenType = AccessToken::AccessTokenKit::GetTokenTypeFlag(callerToken);
589     if (tokenType == AccessToken::ATokenTypeEnum::TOKEN_HAP) {
590         int32_t ret = AccessToken::PrivacyKit::AddPermissionUsedRecord(callerToken, permission,
591             successCount, failCount);
592         if (ret != AccessToken::AccessTokenKitRet::RET_SUCCESS) {
593             APP_LOGE("AddPermissionUsedRecord failed, ret = %{public}d", ret);
594         }
595     }
596 }
597 
IsBundleSelfCalling(const std::string &bundleName)598 bool BundlePermissionMgr::IsBundleSelfCalling(const std::string &bundleName)
599 {
600     auto dataMgr = DelayedSingleton<BundleMgrService>::GetInstance()->GetDataMgr();
601     if (dataMgr == nullptr) {
602         LOG_E(BMS_TAG_DEFAULT, "DataMgr is nullptr");
603         return false;
604     }
605     int32_t callingUid = IPCSkeleton::GetCallingUid();
606     LOG_D(BMS_TAG_DEFAULT, "start, callingUid: %{public}d", callingUid);
607     std::string callingBundleName;
608     if (dataMgr->GetNameForUid(callingUid, callingBundleName) != ERR_OK) {
609         return false;
610     }
611     LOG_D(BMS_TAG_DEFAULT, "bundleName :%{public}s, callingBundleName : %{public}s",
612         bundleName.c_str(), callingBundleName.c_str());
613     if (bundleName != callingBundleName) {
614         LOG_W(BMS_TAG_DEFAULT, "failed, callingUid: %{public}d", callingUid);
615         return false;
616     }
617     LOG_D(BMS_TAG_DEFAULT, "end, verify success");
618     return true;
619 }
620 
VerifyCallingBundleSdkVersion(int32_t beginApiVersion)621 bool BundlePermissionMgr::VerifyCallingBundleSdkVersion(int32_t beginApiVersion)
622 {
623     auto dataMgr = DelayedSingleton<BundleMgrService>::GetInstance()->GetDataMgr();
624     if (dataMgr == nullptr) {
625         LOG_E(BMS_TAG_DEFAULT, "DataMgr is nullptr");
626         return false;
627     }
628     int32_t callingUid = IPCSkeleton::GetCallingUid();
629     LOG_D(BMS_TAG_DEFAULT, "start, callingUid: %{public}d", callingUid);
630     std::string callingBundleName;
631     if (dataMgr->GetNameForUid(callingUid, callingBundleName) != ERR_OK) {
632         return false;
633     }
634     auto userId = callingUid / Constants::BASE_USER_RANGE;
635     ApplicationInfo applicationInfo;
636     auto res = dataMgr->GetApplicationInfoV9(callingBundleName,
637         static_cast<int32_t>(GetApplicationFlag::GET_APPLICATION_INFO_WITH_DISABLE), userId, applicationInfo);
638     if (res != ERR_OK) {
639         LOG_E(BMS_TAG_DEFAULT, "getApplicationInfo failed, callingBundleName:%{public}s", callingBundleName.c_str());
640         return false;
641     }
642     auto systemApiVersion = GetSdkApiVersion();
643     auto appApiVersion = applicationInfo.apiTargetVersion;
644     // api version is the minimum value of {appApiVersion, systemApiVersion}
645     appApiVersion = systemApiVersion < appApiVersion ? systemApiVersion : appApiVersion;
646     LOG_D(BMS_TAG_DEFAULT, "appApiVersion: %{public}d", appApiVersion);
647 
648     if ((appApiVersion % BASE_API_VERSION) < beginApiVersion) {
649         LOG_I(BMS_TAG_DEFAULT, "previous app calling, verify success");
650         return true;
651     }
652     return false;
653 }
654 
655 Security::AccessToken::HapInfoParams BundlePermissionMgr::CreateHapInfoParams(const InnerBundleInfo &innerBundleInfo,
656     const int32_t userId, const int32_t dlpType)
657 {
658     AccessToken::HapInfoParams hapInfo;
659     hapInfo.userID = userId;
660     hapInfo.bundleName = innerBundleInfo.GetBundleName();
661     hapInfo.instIndex = innerBundleInfo.GetAppIndex();
662     hapInfo.appIDDesc = innerBundleInfo.GetAppId();
663     hapInfo.dlpType = dlpType;
664     hapInfo.apiVersion = innerBundleInfo.GetBaseApplicationInfo().apiTargetVersion;
665     hapInfo.isSystemApp = innerBundleInfo.IsSystemApp();
666     hapInfo.appDistributionType = innerBundleInfo.GetAppDistributionType();
667     return hapInfo;
668 }
669 
670 int32_t BundlePermissionMgr::InitHapToken(const InnerBundleInfo &innerBundleInfo, const int32_t userId,
671     const int32_t dlpType, Security::AccessToken::AccessTokenIDEx& tokenIdeEx)
672 {
673     LOG_I(BMS_TAG_DEFAULT, "start, init hap token bundleName:%{public}s", innerBundleInfo.GetBundleName().c_str());
674     AccessToken::HapInfoParams hapInfo = CreateHapInfoParams(innerBundleInfo, userId, dlpType);
675     AccessToken::HapPolicyParams hapPolicy = CreateHapPolicyParam(innerBundleInfo);
676     auto ret = AccessToken::AccessTokenKit::InitHapToken(hapInfo, hapPolicy, tokenIdeEx);
677     if (ret != AccessToken::AccessTokenKitRet::RET_SUCCESS) {
678         LOG_E(BMS_TAG_DEFAULT, "InitHapToken failed, bundleName:%{public}s errCode:%{public}d",
679             innerBundleInfo.GetBundleName().c_str(), ret);
680         return ret;
681     }
682     LOG_I(BMS_TAG_DEFAULT, "bundleName: %{public}s tokenId:%{public}u", innerBundleInfo.GetBundleName().c_str(),
683         tokenIdeEx.tokenIdExStruct.tokenID);
684     return ERR_OK;
685 }
686 
687 int32_t BundlePermissionMgr::UpdateHapToken(
688     Security::AccessToken::AccessTokenIDEx& tokenIdeEx, const InnerBundleInfo &innerBundleInfo)
689 {
690     LOG_NOFUNC_I(BMS_TAG_DEFAULT, "start UpdateHapToken -n %{public}s", innerBundleInfo.GetBundleName().c_str());
691     AccessToken::UpdateHapInfoParams updateHapInfoParams;
692     updateHapInfoParams.appIDDesc = innerBundleInfo.GetAppId();
693     updateHapInfoParams.apiVersion = innerBundleInfo.GetBaseApplicationInfo().apiTargetVersion;
694     updateHapInfoParams.isSystemApp = innerBundleInfo.IsSystemApp();
695     updateHapInfoParams.appDistributionType = innerBundleInfo.GetAppDistributionType();
696 
697     AccessToken::HapPolicyParams hapPolicy = CreateHapPolicyParam(innerBundleInfo);
698 
699     auto ret = AccessToken::AccessTokenKit::UpdateHapToken(tokenIdeEx, updateHapInfoParams, hapPolicy);
700     if (ret != AccessToken::AccessTokenKitRet::RET_SUCCESS) {
701         LOG_NOFUNC_E(BMS_TAG_DEFAULT, "UpdateHapToken failed, bundleName:%{public}s errCode:%{public}d",
702             innerBundleInfo.GetBundleName().c_str(), ret);
703         return ret;
704     }
705     LOG_NOFUNC_I(BMS_TAG_DEFAULT, "end UpdateHapToken");
706     return ERR_OK;
707 }
708 }  // namespace AppExecFwk
709 }  // namespace OHOS