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91b80fc8 JL |
1 | /* |
2 | * Copyright 2004-2006 Juan Lang | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU Lesser General Public | |
6 | * License as published by the Free Software Foundation; either | |
7 | * version 2.1 of the License, or (at your option) any later version. | |
8 | * | |
9 | * This library is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * Lesser General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU Lesser General Public | |
15 | * License along with this library; if not, write to the Free Software | |
360a3f91 | 16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
91b80fc8 JL |
17 | */ |
18 | #include <assert.h> | |
19 | #include <stdarg.h> | |
20 | #include "windef.h" | |
21 | #include "winbase.h" | |
22 | #include "wincrypt.h" | |
23 | #include "wine/debug.h" | |
24 | #include "wine/list.h" | |
25 | #include "crypt32_private.h" | |
26 | ||
27 | WINE_DEFAULT_DEBUG_CHANNEL(crypt); | |
28 | ||
29 | typedef struct _CONTEXT_PROPERTY_LIST | |
30 | { | |
31 | CRITICAL_SECTION cs; | |
32 | struct list properties; | |
33 | } CONTEXT_PROPERTY_LIST; | |
34 | ||
35 | typedef struct _CONTEXT_PROPERTY | |
36 | { | |
37 | DWORD propID; | |
38 | DWORD cbData; | |
39 | LPBYTE pbData; | |
40 | struct list entry; | |
41 | } CONTEXT_PROPERTY, *PCONTEXT_PROPERTY; | |
42 | ||
43 | PCONTEXT_PROPERTY_LIST ContextPropertyList_Create(void) | |
44 | { | |
45 | PCONTEXT_PROPERTY_LIST list = CryptMemAlloc(sizeof(CONTEXT_PROPERTY_LIST)); | |
46 | ||
47 | if (list) | |
48 | { | |
49 | InitializeCriticalSection(&list->cs); | |
e8956eb4 | 50 | list->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PCONTEXT_PROPERTY_LIST->cs"); |
91b80fc8 JL |
51 | list_init(&list->properties); |
52 | } | |
53 | return list; | |
54 | } | |
55 | ||
56 | void ContextPropertyList_Free(PCONTEXT_PROPERTY_LIST list) | |
57 | { | |
58 | PCONTEXT_PROPERTY prop, next; | |
59 | ||
60 | LIST_FOR_EACH_ENTRY_SAFE(prop, next, &list->properties, CONTEXT_PROPERTY, | |
61 | entry) | |
62 | { | |
63 | list_remove(&prop->entry); | |
64 | CryptMemFree(prop->pbData); | |
65 | CryptMemFree(prop); | |
66 | } | |
e8956eb4 | 67 | list->cs.DebugInfo->Spare[0] = 0; |
91b80fc8 JL |
68 | DeleteCriticalSection(&list->cs); |
69 | CryptMemFree(list); | |
70 | } | |
71 | ||
72 | BOOL ContextPropertyList_FindProperty(PCONTEXT_PROPERTY_LIST list, DWORD id, | |
73 | PCRYPT_DATA_BLOB blob) | |
74 | { | |
75 | PCONTEXT_PROPERTY prop; | |
76 | BOOL ret = FALSE; | |
77 | ||
f3a1f2bf | 78 | TRACE("(%p, %d, %p)\n", list, id, blob); |
91b80fc8 JL |
79 | |
80 | EnterCriticalSection(&list->cs); | |
81 | LIST_FOR_EACH_ENTRY(prop, &list->properties, CONTEXT_PROPERTY, entry) | |
82 | { | |
83 | if (prop->propID == id) | |
84 | { | |
85 | blob->cbData = prop->cbData; | |
86 | blob->pbData = prop->pbData; | |
87 | ret = TRUE; | |
88 | break; | |
89 | } | |
90 | } | |
91 | LeaveCriticalSection(&list->cs); | |
92 | return ret; | |
93 | } | |
94 | ||
95 | BOOL ContextPropertyList_SetProperty(PCONTEXT_PROPERTY_LIST list, DWORD id, | |
96 | const BYTE *pbData, size_t cbData) | |
97 | { | |
98 | LPBYTE data; | |
99 | BOOL ret = FALSE; | |
100 | ||
101 | if (cbData) | |
102 | { | |
103 | data = CryptMemAlloc(cbData); | |
104 | if (data) | |
105 | memcpy(data, pbData, cbData); | |
106 | } | |
107 | else | |
108 | data = NULL; | |
109 | if (!cbData || data) | |
110 | { | |
111 | PCONTEXT_PROPERTY prop; | |
112 | BOOL found = FALSE; | |
113 | ||
114 | EnterCriticalSection(&list->cs); | |
115 | LIST_FOR_EACH_ENTRY(prop, &list->properties, CONTEXT_PROPERTY, entry) | |
116 | { | |
117 | if (prop->propID == id) | |
118 | { | |
119 | found = TRUE; | |
120 | break; | |
121 | } | |
122 | } | |
123 | if (found) | |
124 | { | |
125 | CryptMemFree(prop->pbData); | |
126 | prop->cbData = cbData; | |
127 | prop->pbData = data; | |
128 | ret = TRUE; | |
129 | } | |
130 | else | |
131 | { | |
132 | prop = CryptMemAlloc(sizeof(CONTEXT_PROPERTY)); | |
133 | if (prop) | |
134 | { | |
135 | prop->propID = id; | |
136 | prop->cbData = cbData; | |
91b80fc8 JL |
137 | prop->pbData = data; |
138 | list_add_tail(&list->properties, &prop->entry); | |
139 | ret = TRUE; | |
140 | } | |
141 | else | |
142 | CryptMemFree(data); | |
143 | } | |
144 | LeaveCriticalSection(&list->cs); | |
145 | } | |
146 | return ret; | |
147 | } | |
148 | ||
149 | void ContextPropertyList_RemoveProperty(PCONTEXT_PROPERTY_LIST list, DWORD id) | |
150 | { | |
151 | PCONTEXT_PROPERTY prop, next; | |
152 | ||
153 | EnterCriticalSection(&list->cs); | |
154 | LIST_FOR_EACH_ENTRY_SAFE(prop, next, &list->properties, CONTEXT_PROPERTY, | |
155 | entry) | |
156 | { | |
157 | if (prop->propID == id) | |
158 | { | |
159 | list_remove(&prop->entry); | |
160 | CryptMemFree(prop->pbData); | |
161 | CryptMemFree(prop); | |
04ed9c2a | 162 | break; |
91b80fc8 JL |
163 | } |
164 | } | |
165 | LeaveCriticalSection(&list->cs); | |
166 | } | |
167 | ||
168 | /* Since the properties are stored in a list, this is a tad inefficient | |
169 | * (O(n^2)) since I have to find the previous position every time. | |
170 | */ | |
171 | DWORD ContextPropertyList_EnumPropIDs(PCONTEXT_PROPERTY_LIST list, DWORD id) | |
172 | { | |
173 | DWORD ret; | |
174 | ||
175 | EnterCriticalSection(&list->cs); | |
176 | if (id) | |
177 | { | |
178 | PCONTEXT_PROPERTY cursor = NULL; | |
179 | ||
180 | LIST_FOR_EACH_ENTRY(cursor, &list->properties, CONTEXT_PROPERTY, entry) | |
181 | { | |
182 | if (cursor->propID == id) | |
183 | break; | |
184 | } | |
185 | if (cursor) | |
186 | { | |
187 | if (cursor->entry.next != &list->properties) | |
188 | ret = LIST_ENTRY(cursor->entry.next, CONTEXT_PROPERTY, | |
189 | entry)->propID; | |
190 | else | |
191 | ret = 0; | |
192 | } | |
193 | else | |
194 | ret = 0; | |
195 | } | |
196 | else if (!list_empty(&list->properties)) | |
197 | ret = LIST_ENTRY(list->properties.next, CONTEXT_PROPERTY, | |
198 | entry)->propID; | |
199 | else | |
200 | ret = 0; | |
201 | LeaveCriticalSection(&list->cs); | |
202 | return ret; | |
203 | } | |
204 | ||
205 | void ContextPropertyList_Copy(PCONTEXT_PROPERTY_LIST to, | |
206 | PCONTEXT_PROPERTY_LIST from) | |
207 | { | |
208 | PCONTEXT_PROPERTY prop; | |
209 | ||
210 | EnterCriticalSection(&from->cs); | |
211 | LIST_FOR_EACH_ENTRY(prop, &from->properties, CONTEXT_PROPERTY, entry) | |
212 | { | |
213 | ContextPropertyList_SetProperty(to, prop->propID, prop->pbData, | |
214 | prop->cbData); | |
215 | } | |
216 | LeaveCriticalSection(&from->cs); | |
217 | } |