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 #ifndef SELINUX_PARAMETER_H 17 #define SELINUX_PARAMETER_H 18 19 #include <sys/socket.h> 20 21 #ifdef __cplusplus 22 #if __cplusplus 23 extern "C" { 24 #endif 25 #endif 26 27 typedef struct ParameterNode { 28 char *paraName; 29 char *paraContext; 30 } ParameterNode; 31 32 typedef struct ParamContextsList { 33 struct ParameterNode info; 34 struct ParamContextsList *next; 35 } ParamContextsList; 36 37 /** 38 * @brief set selinux log print to dmesg 39 */ 40 void SetSelinuxLogCallback(void); 41 42 /** 43 * @brief get param context list, for context-named files generate 44 * free with DestroyParamList 45 * 46 * @return head of param context list 47 */ 48 ParamContextsList *GetParamList(void); 49 50 /** 51 * @brief destroy param list get from GetParamList 52 * 53 * @param list the head of contexts list 54 */ 55 void DestroyParamList(ParamContextsList **list); 56 57 /** 58 * @brief for a particular paraName, get its context 59 * 60 * @param paraName the name of param 61 * @param context the selinux context of param, must free it after use 62 * 63 * @return 0 for success, or an error code 64 */ 65 int GetParamLabel(const char *paraName, char **context); 66 67 /** 68 * @brief for read particular paraName, check its selinux permmisson 69 * 70 * @param paraName the name of param 71 * @return 0 for success, or an error code 72 */ 73 int ReadParamCheck(const char *paraName); 74 75 /** 76 * @brief for write particular paraName, get its context 77 * 78 * @param paraName the name of param 79 * @param uc contains pid, uid, gid info 80 * @return 0 for success, or an error code 81 */ 82 int SetParamCheck(const char *paraName, struct ucred *uc); 83 84 #ifdef __cplusplus 85 #if __cplusplus 86 } 87 #endif /* __cplusplus */ 88 #endif /* __cplusplus */ 89 90 #endif // SELINUX_PARAMETER_H 91