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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 
16 #ifndef BASE_STARTUP_PARAM_TRIE_H
17 #define BASE_STARTUP_PARAM_TRIE_H
18 #include <stdio.h>
19 
20 #include "init_hashmap.h"
21 #include "init_param.h"
22 #include "list.h"
23 #include "param_common.h"
24 #include "param_osadp.h"
25 #include "param_security.h"
26 
27 #ifdef __cplusplus
28 #if __cplusplus
29 extern "C" {
30 #endif
31 #endif
32 
33 #define PARAM_TRIE_STACK_SIZE 25
34 
35 INIT_LOCAL_API int InitWorkSpace(WorkSpace *workSpace, int onlyRead, uint32_t spaceSize);
36 INIT_LOCAL_API void CloseWorkSpace(WorkSpace *workSpace);
37 
38 #define GetTrieNode(workSpace, offset) (ParamTrieNode *)(((offset) == 0 || (offset) > (workSpace)->area->dataSize) ? \
39     NULL : (workSpace)->area->data + (offset))
40 
41 #define GetTrieRoot(workSpace) \
42     (ParamTrieNode *)(((workSpace)->area == NULL) ? NULL : (workSpace)->area->data + (workSpace)->area->firstNode)
43 
44 INIT_LOCAL_API void SaveIndex(uint32_t *index, uint32_t offset);
45 
46 INIT_LOCAL_API ParamTrieNode *AddTrieNode(WorkSpace *workSpace, const char *key, uint32_t keyLen);
47 INIT_LOCAL_API ParamTrieNode *FindTrieNode(
48     WorkSpace *workSpace, const char *key, uint32_t keyLen, uint32_t *matchLabel);
49 
50 typedef int (*TraversalTrieNodePtr)(const WorkSpace *workSpace, const ParamTrieNode *node, const void *cookie);
51 INIT_LOCAL_API int TraversalTrieNode(const WorkSpace *workSpace,
52     const ParamTrieNode *subTrie, TraversalTrieNodePtr walkFunc, const void *cookie);
53 
54 INIT_LOCAL_API uint32_t AddParamSecurityNode(WorkSpace *workSpace, const ParamAuditData *auditData);
55 INIT_LOCAL_API uint32_t AddParamNode(WorkSpace *workSpace, uint8_t type,
56     const char *key, uint32_t keyLen, const char *value, uint32_t valueLen);
57 
58 INIT_LOCAL_API uint32_t GetParamMaxLen(uint8_t type);
59 INIT_LOCAL_API ParamNode *GetParamNode(uint32_t index, const char *name);
60 INIT_LOCAL_API int AddParamEntry(uint32_t index, uint8_t type, const char *name, const char *value);
61 
62 #ifdef STARTUP_INIT_TEST
63 STATIC_INLINE ParamTrieNode *FindTrieNode_(
64     const WorkSpace *workSpace, const char *key, uint32_t keyLen, uint32_t *matchLabel);
65 #endif
66 
67 #define GetWorkSpaceSize(workSpace)     \
68     ((workSpace == NULL) || (workSpace->area == NULL) ||     \
69         (workSpace->area->spaceSizeOffset == 0) ||    \
70         (workSpace->area->spaceSizeOffset >= workSpace->area->dataSize)) ? NULL : \
71         (WorkSpaceSize*)(workSpace->area->data + workSpace->area->spaceSizeOffset)
72 
73 #ifdef __cplusplus
74 #if __cplusplus
75 }
76 #endif
77 #endif
78 #endif  // BASE_STARTUP_PARAM_TRIE_H