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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
7 | 7 | ||
8 | $Revision: 5201 $ |
8 | $Revision: 5565 $ |
9 | 9 | ||
10 | struct NTFS PARTITION |
10 | struct NTFS PARTITION |
11 | Lock MUTEX ? ; currently operations with one partition |
11 | Lock MUTEX ? ; currently operations with one partition |
12 | ; can not be executed in parallel since the |
12 | ; can not be executed in parallel since the |
13 | ; legacy code is not ready; this mutex guards |
13 | ; legacy code is not ready; this mutex guards |
14 | ; all operations |
14 | ; all operations |
15 | sectors_per_cluster dd ? |
15 | sectors_per_cluster dd ? |
16 | mft_cluster dd ? |
16 | mft_cluster dd ? |
17 | mftmirr_cluster dd ? |
17 | mftmirr_cluster dd ? |
18 | frs_size dd ? ; FRS size in bytes |
18 | frs_size dd ? ; FRS size in bytes |
19 | iab_size dd ? ; IndexAllocationBuffer size in bytes |
19 | iab_size dd ? ; IndexAllocationBuffer size in bytes |
20 | frs_buffer dd ? |
20 | frs_buffer dd ? |
21 | iab_buffer dd ? |
21 | iab_buffer dd ? |
22 | mft_retrieval dd ? |
22 | mft_retrieval dd ? |
23 | mft_retrieval_size dd ? |
23 | mft_retrieval_size dd ? |
24 | mft_retrieval_alloc dd ? |
24 | mft_retrieval_alloc dd ? |
25 | mft_retrieval_end dd ? |
25 | mft_retrieval_end dd ? |
26 | cur_index_size dd ? |
26 | cur_index_size dd ? |
27 | cur_index_buf dd ? |
27 | cur_index_buf dd ? |
28 | 28 | ||
29 | ntfs_cur_attr dd ? |
29 | ntfs_cur_attr dd ? |
30 | ntfs_cur_iRecord dd ? |
30 | ntfs_cur_iRecord dd ? |
31 | ntfs_cur_offs dd ? ; in sectors |
31 | ntfs_cur_offs dd ? ; in sectors |
32 | ntfs_cur_size dd ? ; in sectors |
32 | ntfs_cur_size dd ? ; in sectors |
33 | ntfs_cur_buf dd ? |
33 | ntfs_cur_buf dd ? |
34 | ntfs_cur_read dd ? ; [output] |
34 | ntfs_cur_read dd ? ; [output] |
35 | ntfs_bCanContinue db ? |
35 | ntfs_bCanContinue db ? |
36 | rb 3 |
36 | rb 3 |
37 | 37 | ||
38 | cur_subnode_size dd ? |
38 | cur_subnode_size dd ? |
39 | ntfs_attr_iRecord dd ? |
39 | ntfs_attr_iRecord dd ? |
40 | ntfs_attr_iBaseRecord dd ? |
40 | ntfs_attr_iBaseRecord dd ? |
41 | ntfs_attr_offs dd ? |
41 | ntfs_attr_offs dd ? |
42 | ntfs_attr_list dd ? |
42 | ntfs_attr_list dd ? |
43 | ntfs_attr_size dq ? |
43 | ntfs_attr_size dq ? |
44 | ntfs_cur_tail dd ? |
44 | ntfs_cur_tail dd ? |
45 | 45 | ||
46 | ntfs_attrlist_buf rb 0x400 |
46 | ntfs_attrlist_buf rb 0x400 |
47 | ntfs_attrlist_mft_buf rb 0x400 |
47 | ntfs_attrlist_mft_buf rb 0x400 |
48 | ntfs_bitmap_buf rb 0x400 |
48 | ntfs_bitmap_buf rb 0x400 |
49 | ends |
49 | ends |
50 | 50 | ||
51 | iglobal |
51 | iglobal |
52 | align 4 |
52 | align 4 |
53 | ntfs_user_functions: |
53 | ntfs_user_functions: |
54 | dd ntfs_free |
54 | dd ntfs_free |
55 | dd (ntfs_user_functions_end - ntfs_user_functions - 4) / 4 |
55 | dd (ntfs_user_functions_end - ntfs_user_functions - 4) / 4 |
56 | dd ntfs_Read |
56 | dd ntfs_Read |
57 | dd ntfs_ReadFolder |
57 | dd ntfs_ReadFolder |
58 | dd ntfs_Rewrite |
58 | dd ntfs_Rewrite |
59 | dd ntfs_Write |
59 | dd ntfs_Write |
60 | dd ntfs_SetFileEnd |
60 | dd ntfs_SetFileEnd |
61 | dd ntfs_GetFileInfo |
61 | dd ntfs_GetFileInfo |
62 | dd ntfs_SetFileInfo |
62 | dd ntfs_SetFileInfo |
63 | dd 0 |
63 | dd 0 |
64 | dd ntfs_Delete |
64 | dd ntfs_Delete |
65 | dd ntfs_CreateFolder |
65 | dd ntfs_CreateFolder |
66 | ntfs_user_functions_end: |
66 | ntfs_user_functions_end: |
67 | endg |
67 | endg |
68 | 68 | ||
69 | ntfs_test_bootsec: |
69 | ntfs_test_bootsec: |
70 | ; in: ebx->buffer, edx=size of partition |
70 | ; in: ebx->buffer, edx=size of partition |
71 | ; out: CF set <=> invalid |
71 | ; out: CF set <=> invalid |
72 | ; 1. Name=='NTFS ' |
72 | ; 1. Name=='NTFS ' |
73 | cmp dword [ebx+3], 'NTFS' |
73 | cmp dword [ebx+3], 'NTFS' |
74 | jnz .no |
74 | jnz .no |
75 | cmp dword [ebx+7], ' ' |
75 | cmp dword [ebx+7], ' ' |
76 | jnz .no |
76 | jnz .no |
77 | ; 2. Number of bytes per sector is the same as for physical device |
77 | ; 2. Number of bytes per sector is the same as for physical device |
78 | ; (that is, 0x200 for hard disk) |
78 | ; (that is, 0x200 for hard disk) |
79 | cmp word [ebx+11], 0x200 |
79 | cmp word [ebx+11], 0x200 |
80 | jnz .no |
80 | jnz .no |
81 | ; 3. Number of sectors per cluster must be power of 2 |
81 | ; 3. Number of sectors per cluster must be power of 2 |
82 | movzx eax, byte [ebx+13] |
82 | movzx eax, byte [ebx+13] |
83 | dec eax |
83 | dec eax |
84 | js .no |
84 | js .no |
85 | test al, [ebx+13] |
85 | test al, [ebx+13] |
86 | jnz .no |
86 | jnz .no |
87 | ; 4. FAT parameters must be zero |
87 | ; 4. FAT parameters must be zero |
88 | cmp word [ebx+14], 0 |
88 | cmp word [ebx+14], 0 |
89 | jnz .no |
89 | jnz .no |
90 | cmp dword [ebx+16], 0 |
90 | cmp dword [ebx+16], 0 |
91 | jnz .no |
91 | jnz .no |
92 | cmp byte [ebx+20], 0 |
92 | cmp byte [ebx+20], 0 |
93 | jnz .no |
93 | jnz .no |
94 | cmp word [ebx+22], 0 |
94 | cmp word [ebx+22], 0 |
95 | jnz .no |
95 | jnz .no |
96 | cmp dword [ebx+32], 0 |
96 | cmp dword [ebx+32], 0 |
97 | jnz .no |
97 | jnz .no |
98 | ; 5. Number of sectors <= partition size |
98 | ; 5. Number of sectors <= partition size |
99 | cmp dword [ebx+0x2C], 0 |
99 | cmp dword [ebx+0x2C], 0 |
100 | ja .no |
100 | ja .no |
101 | cmp [ebx+0x28], edx |
101 | cmp [ebx+0x28], edx |
102 | ja .no |
102 | ja .no |
103 | ; 6. $MFT and $MFTMirr clusters must be within partition |
103 | ; 6. $MFT and $MFTMirr clusters must be within partition |
104 | cmp dword [ebx+0x34], 0 |
104 | cmp dword [ebx+0x34], 0 |
105 | ja .no |
105 | ja .no |
106 | push edx |
106 | push edx |
107 | movzx eax, byte [ebx+13] |
107 | movzx eax, byte [ebx+13] |
108 | mul dword [ebx+0x30] |
108 | mul dword [ebx+0x30] |
109 | test edx, edx |
109 | test edx, edx |
110 | pop edx |
110 | pop edx |
111 | jnz .no |
111 | jnz .no |
112 | cmp eax, edx |
112 | cmp eax, edx |
113 | ja .no |
113 | ja .no |
114 | cmp dword [ebx+0x3C], 0 |
114 | cmp dword [ebx+0x3C], 0 |
115 | ja .no |
115 | ja .no |
116 | push edx |
116 | push edx |
117 | movzx eax, byte [ebx+13] |
117 | movzx eax, byte [ebx+13] |
118 | mul dword [ebx+0x38] |
118 | mul dword [ebx+0x38] |
119 | test edx, edx |
119 | test edx, edx |
120 | pop edx |
120 | pop edx |
121 | jnz .no |
121 | jnz .no |
122 | cmp eax, edx |
122 | cmp eax, edx |
123 | ja .no |
123 | ja .no |
124 | ; 7. Clusters per FRS must be either negative and in [-31,-9] or positive and power of 2 |
124 | ; 7. Clusters per FRS must be either negative and in [-31,-9] or positive and power of 2 |
125 | movsx eax, byte [ebx+0x40] |
125 | movsx eax, byte [ebx+0x40] |
126 | cmp al, -31 |
126 | cmp al, -31 |
127 | jl .no |
127 | jl .no |
128 | cmp al, -9 |
128 | cmp al, -9 |
129 | jle @f |
129 | jle @f |
130 | dec eax |
130 | dec eax |
131 | js .no |
131 | js .no |
132 | test [ebx+0x40], al |
132 | test [ebx+0x40], al |
133 | jnz .no |
133 | jnz .no |
134 | @@: |
134 | @@: |
135 | ; 8. Same for clusters per IndexAllocationBuffer |
135 | ; 8. Same for clusters per IndexAllocationBuffer |
136 | movsx eax, byte [ebx+0x44] |
136 | movsx eax, byte [ebx+0x44] |
137 | cmp al, -31 |
137 | cmp al, -31 |
138 | jl .no |
138 | jl .no |
139 | cmp al, -9 |
139 | cmp al, -9 |
140 | jle @f |
140 | jle @f |
141 | dec eax |
141 | dec eax |
142 | js .no |
142 | js .no |
143 | test [ebx+0x44], al |
143 | test [ebx+0x44], al |
144 | jnz .no |
144 | jnz .no |
145 | @@: |
145 | @@: |
146 | ; OK, this is correct NTFS bootsector |
146 | ; OK, this is correct NTFS bootsector |
147 | clc |
147 | clc |
148 | ret |
148 | ret |
149 | .no: |
149 | .no: |
150 | ; No, this bootsector isn't NTFS |
150 | ; No, this bootsector isn't NTFS |
151 | stc |
151 | stc |
152 | ret |
152 | ret |
153 | 153 | ||
154 | proc ntfs_create_partition |
154 | proc ntfs_create_partition |
155 | cmp dword [esi+DISK.MediaInfo.SectorSize], 512 |
155 | cmp dword [esi+DISK.MediaInfo.SectorSize], 512 |
156 | jnz .nope |
156 | jnz .nope |
157 | mov edx, dword [ebp+PARTITION.Length] |
157 | mov edx, dword [ebp+PARTITION.Length] |
158 | cmp dword [esp+4], 0 |
158 | cmp dword [esp+4], 0 |
159 | jz .boot_read_ok |
159 | jz .boot_read_ok |
160 | add ebx, 512 |
160 | add ebx, 512 |
161 | lea eax, [edx-1] |
161 | lea eax, [edx-1] |
162 | call fs_read32_sys |
162 | call fs_read32_sys |
163 | test eax, eax |
163 | test eax, eax |
164 | jnz @f |
164 | jnz @f |
165 | call ntfs_test_bootsec |
165 | call ntfs_test_bootsec |
166 | jnc .ntfs_setup |
166 | jnc .ntfs_setup |
167 | @@: |
167 | @@: |
168 | mov eax, edx |
168 | mov eax, edx |
169 | shr eax, 1 |
169 | shr eax, 1 |
170 | call fs_read32_sys |
170 | call fs_read32_sys |
171 | test eax, eax |
171 | test eax, eax |
172 | jnz .nope ; no chance... |
172 | jnz .nope ; no chance... |
173 | .boot_read_ok: |
173 | .boot_read_ok: |
174 | call ntfs_test_bootsec |
174 | call ntfs_test_bootsec |
175 | jnc .ntfs_setup |
175 | jnc .ntfs_setup |
176 | .nope: |
176 | .nope: |
177 | xor eax, eax |
177 | xor eax, eax |
178 | jmp .exit |
178 | jmp .exit |
179 | 179 | ||
180 | .ntfs_setup: |
180 | .ntfs_setup: |
181 | ; By given bootsector, initialize some NTFS variables |
181 | ; By given bootsector, initialize some NTFS variables |
182 | movi eax, sizeof.NTFS |
182 | movi eax, sizeof.NTFS |
183 | call malloc |
183 | call malloc |
184 | test eax, eax |
184 | test eax, eax |
185 | jz .exit |
185 | jz .exit |
186 | mov ecx, dword [ebp+PARTITION.FirstSector] |
186 | mov ecx, dword [ebp+PARTITION.FirstSector] |
187 | mov dword [eax+NTFS.FirstSector], ecx |
187 | mov dword [eax+NTFS.FirstSector], ecx |
188 | mov ecx, dword [ebp+PARTITION.FirstSector+4] |
188 | mov ecx, dword [ebp+PARTITION.FirstSector+4] |
189 | mov dword [eax+NTFS.FirstSector+4], ecx |
189 | mov dword [eax+NTFS.FirstSector+4], ecx |
190 | mov ecx, dword [ebp+PARTITION.Length] |
190 | mov ecx, dword [ebp+PARTITION.Length] |
191 | mov dword [eax+NTFS.Length], ecx |
191 | mov dword [eax+NTFS.Length], ecx |
192 | mov ecx, dword [ebp+PARTITION.Length+4] |
192 | mov ecx, dword [ebp+PARTITION.Length+4] |
193 | mov dword [eax+NTFS.Length+4], ecx |
193 | mov dword [eax+NTFS.Length+4], ecx |
194 | mov ecx, [ebp+PARTITION.Disk] |
194 | mov ecx, [ebp+PARTITION.Disk] |
195 | mov [eax+NTFS.Disk], ecx |
195 | mov [eax+NTFS.Disk], ecx |
196 | mov [eax+NTFS.FSUserFunctions], ntfs_user_functions |
196 | mov [eax+NTFS.FSUserFunctions], ntfs_user_functions |
197 | push ebx ebp esi |
197 | push ebx ebp esi |
198 | mov ebp, eax |
198 | mov ebp, eax |
199 | 199 | ||
200 | lea ecx, [ebp+NTFS.Lock] |
200 | lea ecx, [ebp+NTFS.Lock] |
201 | call mutex_init |
201 | call mutex_init |
202 | 202 | ||
203 | movzx eax, byte [ebx+13] |
203 | movzx eax, byte [ebx+13] |
204 | mov [ebp+NTFS.sectors_per_cluster], eax |
204 | mov [ebp+NTFS.sectors_per_cluster], eax |
205 | mov eax, [ebx+0x28] |
205 | mov eax, [ebx+0x28] |
206 | mov dword [ebp+NTFS.Length], eax |
206 | mov dword [ebp+NTFS.Length], eax |
207 | and dword [ebp+NTFS.Length+4], 0 |
207 | and dword [ebp+NTFS.Length+4], 0 |
208 | mov eax, [ebx+0x30] |
208 | mov eax, [ebx+0x30] |
209 | mov [ebp+NTFS.mft_cluster], eax |
209 | mov [ebp+NTFS.mft_cluster], eax |
210 | mov eax, [ebx+0x38] |
210 | mov eax, [ebx+0x38] |
211 | mov [ebp+NTFS.mftmirr_cluster], eax |
211 | mov [ebp+NTFS.mftmirr_cluster], eax |
212 | movsx eax, byte [ebx+0x40] |
212 | movsx eax, byte [ebx+0x40] |
213 | test eax, eax |
213 | test eax, eax |
214 | js .1 |
214 | js .1 |
215 | mul [ebp+NTFS.sectors_per_cluster] |
215 | mul [ebp+NTFS.sectors_per_cluster] |
216 | shl eax, 9 |
216 | shl eax, 9 |
217 | jmp .2 |
217 | jmp .2 |
218 | .1: |
218 | .1: |
219 | neg eax |
219 | neg eax |
220 | mov ecx, eax |
220 | mov ecx, eax |
221 | mov eax, 1 |
221 | mov eax, 1 |
222 | shl eax, cl |
222 | shl eax, cl |
223 | .2: |
223 | .2: |
224 | mov [ebp+NTFS.frs_size], eax |
224 | mov [ebp+NTFS.frs_size], eax |
225 | movsx eax, byte [ebx+0x44] |
225 | movsx eax, byte [ebx+0x44] |
226 | test eax, eax |
226 | test eax, eax |
227 | js .3 |
227 | js .3 |
228 | mul [ebp+NTFS.sectors_per_cluster] |
228 | mul [ebp+NTFS.sectors_per_cluster] |
229 | shl eax, 9 |
229 | shl eax, 9 |
230 | jmp .4 |
230 | jmp .4 |
231 | .3: |
231 | .3: |
232 | neg eax |
232 | neg eax |
233 | mov ecx, eax |
233 | mov ecx, eax |
234 | mov eax, 1 |
234 | mov eax, 1 |
235 | shl eax, cl |
235 | shl eax, cl |
236 | .4: |
236 | .4: |
237 | mov [ebp+NTFS.iab_size], eax |
237 | mov [ebp+NTFS.iab_size], eax |
238 | ; allocate space for buffers |
238 | ; allocate space for buffers |
239 | add eax, [ebp+NTFS.frs_size] |
239 | add eax, [ebp+NTFS.frs_size] |
240 | push eax |
240 | push eax |
241 | call kernel_alloc |
241 | call kernel_alloc |
242 | test eax, eax |
242 | test eax, eax |
243 | jz .fail_free |
243 | jz .fail_free |
244 | mov [ebp+NTFS.frs_buffer], eax |
244 | mov [ebp+NTFS.frs_buffer], eax |
245 | add eax, [ebp+NTFS.frs_size] |
245 | add eax, [ebp+NTFS.frs_size] |
246 | mov [ebp+NTFS.iab_buffer], eax |
246 | mov [ebp+NTFS.iab_buffer], eax |
247 | ; read $MFT disposition |
247 | ; read $MFT disposition |
248 | mov eax, [ebp+NTFS.mft_cluster] |
248 | mov eax, [ebp+NTFS.mft_cluster] |
249 | mul [ebp+NTFS.sectors_per_cluster] |
249 | mul [ebp+NTFS.sectors_per_cluster] |
250 | call ntfs_read_frs_sector |
250 | call ntfs_read_frs_sector |
251 | test eax, eax |
251 | test eax, eax |
252 | jnz .usemirr |
252 | jnz .usemirr |
253 | cmp dword [ebx], 'FILE' |
253 | cmp dword [ebx], 'FILE' |
254 | jnz .usemirr |
254 | jnz .usemirr |
255 | call ntfs_restore_usa_frs |
255 | call ntfs_restore_usa_frs |
256 | jnc .mftok |
256 | jnc .mftok |
257 | .usemirr: |
257 | .usemirr: |
258 | mov eax, [ebp+NTFS.mftmirr_cluster] |
258 | mov eax, [ebp+NTFS.mftmirr_cluster] |
259 | mul [ebp+NTFS.sectors_per_cluster] |
259 | mul [ebp+NTFS.sectors_per_cluster] |
260 | call ntfs_read_frs_sector |
260 | call ntfs_read_frs_sector |
261 | test eax, eax |
261 | test eax, eax |
262 | jnz @f |
262 | jnz @f |
263 | cmp dword [ebx], 'FILE' |
263 | cmp dword [ebx], 'FILE' |
264 | jnz @f |
264 | jnz @f |
265 | call ntfs_restore_usa_frs |
265 | call ntfs_restore_usa_frs |
266 | jnc .mftok |
266 | jnc .mftok |
267 | @@: |
267 | @@: |
268 | ; $MFT and $MFTMirr invalid! |
268 | ; $MFT and $MFTMirr invalid! |
269 | .fail_free_frs: |
269 | .fail_free_frs: |
270 | push [ebp+NTFS.frs_buffer] |
270 | push [ebp+NTFS.frs_buffer] |
271 | call kernel_free |
271 | call kernel_free |
272 | .fail_free: |
272 | .fail_free: |
273 | mov eax, ebp |
273 | mov eax, ebp |
274 | call free |
274 | call free |
275 | xor eax, eax |
275 | xor eax, eax |
276 | .pop_exit: |
276 | .pop_exit: |
277 | pop esi ebp ebx |
277 | pop esi ebp ebx |
278 | .exit: |
278 | .exit: |
279 | cmp dword [esp+4], 0 |
279 | cmp dword [esp+4], 0 |
280 | jz @f |
280 | jz @f |
281 | sub ebx, 512 |
281 | sub ebx, 512 |
282 | @@: |
282 | @@: |
283 | ret |
283 | ret |
284 | .fail_free_mft: |
284 | .fail_free_mft: |
285 | push [ebp+NTFS.mft_retrieval] |
285 | push [ebp+NTFS.mft_retrieval] |
286 | call kernel_free |
286 | call kernel_free |
287 | jmp .fail_free_frs |
287 | jmp .fail_free_frs |
288 | .mftok: |
288 | .mftok: |
289 | ; read $MFT table retrieval information |
289 | ; read $MFT table retrieval information |
290 | ; start with one page, increase if not enough (when MFT too fragmented) |
290 | ; start with one page, increase if not enough (when MFT too fragmented) |
291 | push ebx |
291 | push ebx |
292 | push 0x1000 |
292 | push 0x1000 |
293 | call kernel_alloc |
293 | call kernel_alloc |
294 | pop ebx |
294 | pop ebx |
295 | test eax, eax |
295 | test eax, eax |
296 | jz .fail_free_frs |
296 | jz .fail_free_frs |
297 | mov [ebp+NTFS.mft_retrieval], eax |
297 | mov [ebp+NTFS.mft_retrieval], eax |
298 | and [ebp+NTFS.mft_retrieval_size], 0 |
298 | and [ebp+NTFS.mft_retrieval_size], 0 |
299 | mov [ebp+NTFS.mft_retrieval_alloc], 0x1000/8 |
299 | mov [ebp+NTFS.mft_retrieval_alloc], 0x1000/8 |
300 | ; $MFT base record must contain unnamed non-resident $DATA attribute |
300 | ; $MFT base record must contain unnamed non-resident $DATA attribute |
301 | movzx eax, word [ebx+14h] |
301 | movzx eax, word [ebx+14h] |
302 | add eax, ebx |
302 | add eax, ebx |
303 | .scandata: |
303 | .scandata: |
304 | cmp dword [eax], -1 |
304 | cmp dword [eax], -1 |
305 | jz .fail_free_mft |
305 | jz .fail_free_mft |
306 | cmp dword [eax], 0x80 |
306 | cmp dword [eax], 0x80 |
307 | jnz @f |
307 | jnz @f |
308 | cmp byte [eax+9], 0 |
308 | cmp byte [eax+9], 0 |
309 | jz .founddata |
309 | jz .founddata |
310 | @@: |
310 | @@: |
311 | add eax, [eax+4] |
311 | add eax, [eax+4] |
312 | jmp .scandata |
312 | jmp .scandata |
313 | .founddata: |
313 | .founddata: |
314 | cmp byte [eax+8], 0 |
314 | cmp byte [eax+8], 0 |
315 | jz .fail_free_mft |
315 | jz .fail_free_mft |
316 | ; load first portion of $DATA attribute retrieval information |
316 | ; load first portion of $DATA attribute retrieval information |
317 | mov edx, [eax+0x18] |
317 | mov edx, [eax+0x18] |
318 | mov [ebp+NTFS.mft_retrieval_end], edx |
318 | mov [ebp+NTFS.mft_retrieval_end], edx |
319 | mov esi, eax |
319 | mov esi, eax |
320 | movzx eax, word [eax+0x20] |
320 | movzx eax, word [eax+0x20] |
321 | add esi, eax |
321 | add esi, eax |
322 | sub esp, 10h |
322 | sub esp, 10h |
323 | .scanmcb: |
323 | .scanmcb: |
324 | call ntfs_decode_mcb_entry |
324 | call ntfs_decode_mcb_entry |
325 | jnc .scanmcbend |
325 | jnc .scanmcbend |
326 | call .get_mft_retrieval_ptr |
326 | call .get_mft_retrieval_ptr |
327 | mov edx, [esp] ; block length |
327 | mov edx, [esp] ; block length |
328 | mov [eax], edx |
328 | mov [eax], edx |
329 | mov edx, [esp+8] ; block addr (relative) |
329 | mov edx, [esp+8] ; block addr (relative) |
330 | mov [eax+4], edx |
330 | mov [eax+4], edx |
331 | inc [ebp+NTFS.mft_retrieval_size] |
331 | inc [ebp+NTFS.mft_retrieval_size] |
332 | jmp .scanmcb |
332 | jmp .scanmcb |
333 | .scanmcbend: |
333 | .scanmcbend: |
334 | add esp, 10h |
334 | add esp, 10h |
335 | ; there may be other portions of $DATA attribute in auxiliary records; |
335 | ; there may be other portions of $DATA attribute in auxiliary records; |
336 | ; if they will be needed, they will be loaded later |
336 | ; if they will be needed, they will be loaded later |
337 | 337 | ||
338 | mov [ebp+NTFS.cur_index_size], 0x1000/0x200 |
338 | mov [ebp+NTFS.cur_index_size], 0x1000/0x200 |
339 | push 0x1000 |
339 | push 0x1000 |
340 | call kernel_alloc |
340 | call kernel_alloc |
341 | test eax, eax |
341 | test eax, eax |
342 | jz .fail_free_mft |
342 | jz .fail_free_mft |
343 | mov [ebp+NTFS.cur_index_buf], eax |
343 | mov [ebp+NTFS.cur_index_buf], eax |
344 | 344 | ||
345 | mov eax, ebp |
345 | mov eax, ebp |
346 | jmp .pop_exit |
346 | jmp .pop_exit |
347 | endp |
347 | endp |
348 | 348 | ||
349 | .get_mft_retrieval_ptr: |
349 | .get_mft_retrieval_ptr: |
350 | pushad |
350 | pushad |
351 | mov eax, [ebp+NTFS.mft_retrieval_size] |
351 | mov eax, [ebp+NTFS.mft_retrieval_size] |
352 | cmp eax, [ebp+NTFS.mft_retrieval_alloc] |
352 | cmp eax, [ebp+NTFS.mft_retrieval_alloc] |
353 | jnz .ok |
353 | jnz .ok |
354 | add eax, 0x1000/8 |
354 | add eax, 0x1000/8 |
355 | mov [ebp+NTFS.mft_retrieval_alloc], eax |
355 | mov [ebp+NTFS.mft_retrieval_alloc], eax |
356 | shl eax, 3 |
356 | shl eax, 3 |
357 | push eax |
357 | push eax |
358 | call kernel_alloc |
358 | call kernel_alloc |
359 | test eax, eax |
359 | test eax, eax |
360 | jnz @f |
360 | jnz @f |
361 | popad |
361 | popad |
362 | add esp, 14h |
362 | add esp, 14h |
363 | jmp .fail_free_mft |
363 | jmp .fail_free_mft |
364 | @@: |
364 | @@: |
365 | mov esi, [ebp+NTFS.mft_retrieval] |
365 | mov esi, [ebp+NTFS.mft_retrieval] |
366 | mov edi, eax |
366 | mov edi, eax |
367 | mov ecx, [ebp+NTFS.mft_retrieval_size] |
367 | mov ecx, [ebp+NTFS.mft_retrieval_size] |
368 | add ecx, ecx |
368 | add ecx, ecx |
369 | rep movsd |
369 | rep movsd |
370 | push [ebp+NTFS.mft_retrieval] |
370 | push [ebp+NTFS.mft_retrieval] |
371 | mov [ebp+NTFS.mft_retrieval], eax |
371 | mov [ebp+NTFS.mft_retrieval], eax |
372 | call kernel_free |
372 | call kernel_free |
373 | mov eax, [ebp+NTFS.mft_retrieval_size] |
373 | mov eax, [ebp+NTFS.mft_retrieval_size] |
374 | .ok: |
374 | .ok: |
375 | shl eax, 3 |
375 | shl eax, 3 |
376 | add eax, [ebp+NTFS.mft_retrieval] |
376 | add eax, [ebp+NTFS.mft_retrieval] |
377 | mov [esp+28], eax |
377 | mov [esp+28], eax |
378 | popad |
378 | popad |
379 | ret |
379 | ret |
380 | 380 | ||
381 | proc ntfs_free |
381 | proc ntfs_free |
382 | push ebx |
382 | push ebx |
383 | xchg ebx, eax |
383 | xchg ebx, eax |
384 | stdcall kernel_free, [ebx+NTFS.frs_buffer] |
384 | stdcall kernel_free, [ebx+NTFS.frs_buffer] |
385 | stdcall kernel_free, [ebx+NTFS.mft_retrieval] |
385 | stdcall kernel_free, [ebx+NTFS.mft_retrieval] |
386 | stdcall kernel_free, [ebx+NTFS.cur_index_buf] |
386 | stdcall kernel_free, [ebx+NTFS.cur_index_buf] |
387 | xchg ebx, eax |
387 | xchg ebx, eax |
388 | call free |
388 | call free |
389 | pop ebx |
389 | pop ebx |
390 | ret |
390 | ret |
391 | endp |
391 | endp |
392 | 392 | ||
393 | proc ntfs_lock |
393 | proc ntfs_lock |
394 | lea ecx, [ebp+NTFS.Lock] |
394 | lea ecx, [ebp+NTFS.Lock] |
395 | jmp mutex_lock |
395 | jmp mutex_lock |
396 | endp |
396 | endp |
397 | 397 | ||
398 | proc ntfs_unlock |
398 | proc ntfs_unlock |
399 | lea ecx, [ebp+NTFS.Lock] |
399 | lea ecx, [ebp+NTFS.Lock] |
400 | jmp mutex_unlock |
400 | jmp mutex_unlock |
401 | endp |
401 | endp |
402 | 402 | ||
403 | ntfs_read_frs_sector: |
403 | ntfs_read_frs_sector: |
404 | push ecx |
404 | push ecx |
405 | mov ebx, [ebp+NTFS.frs_buffer] |
405 | mov ebx, [ebp+NTFS.frs_buffer] |
406 | push ebx |
406 | push ebx |
407 | mov ecx, [ebp+NTFS.frs_size] |
407 | mov ecx, [ebp+NTFS.frs_size] |
408 | shr ecx, 9 |
408 | shr ecx, 9 |
409 | push ecx |
409 | push ecx |
410 | mov ecx, eax |
410 | mov ecx, eax |
411 | @@: |
411 | @@: |
412 | mov eax, ecx |
412 | mov eax, ecx |
413 | call fs_read32_sys |
413 | call fs_read32_sys |
414 | test eax, eax |
414 | test eax, eax |
415 | jnz .fail |
415 | jnz .fail |
416 | add ebx, 0x200 |
416 | add ebx, 0x200 |
417 | inc ecx |
417 | inc ecx |
418 | dec dword [esp] |
418 | dec dword [esp] |
419 | jnz @b |
419 | jnz @b |
420 | pop eax |
420 | pop eax |
421 | .fail: |
421 | .fail: |
422 | pop ebx |
422 | pop ebx |
423 | pop ecx |
423 | pop ecx |
424 | ret |
424 | ret |
425 | 425 | ||
426 | ntfs_read_attr: |
426 | ntfs_read_attr: |
427 | ; in: variables in ebp+NTFS.* |
427 | ; in: variables in ebp+NTFS.* |
428 | ; out: [ebp+NTFS.ntfs_cur_read] |
428 | ; out: [ebp+NTFS.ntfs_cur_read] |
429 | ; out: CF=1 => notfound, in this case eax=0 => disk ok, otherwise eax=disk error code |
429 | ; out: CF=1 => notfound, in this case eax=0 => disk ok, otherwise eax=disk error code |
430 | xor eax, eax |
430 | xor eax, eax |
431 | pushad |
431 | pushad |
432 | and [ebp+NTFS.ntfs_cur_read], 0 |
432 | and [ebp+NTFS.ntfs_cur_read], 0 |
433 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
433 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
434 | jnz .nomft |
434 | jnz .nomft |
435 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
435 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
436 | jnz .nomft |
436 | jnz .nomft |
437 | mov eax, [ebp+NTFS.mft_retrieval_end] |
437 | mov eax, [ebp+NTFS.mft_retrieval_end] |
438 | inc eax |
438 | inc eax |
439 | mul [ebp+NTFS.sectors_per_cluster] |
439 | mul [ebp+NTFS.sectors_per_cluster] |
440 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
440 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
441 | jbe .nomft |
441 | jbe .nomft |
442 | ; precalculated part of $Mft $DATA |
442 | ; precalculated part of $Mft $DATA |
443 | mov esi, [ebp+NTFS.mft_retrieval] |
443 | mov esi, [ebp+NTFS.mft_retrieval] |
444 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
444 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
445 | xor edx, edx |
445 | xor edx, edx |
446 | div [ebp+NTFS.sectors_per_cluster] |
446 | div [ebp+NTFS.sectors_per_cluster] |
447 | ; eax = VCN, edx = offset in sectors from beginning of cluster |
447 | ; eax = VCN, edx = offset in sectors from beginning of cluster |
448 | xor ecx, ecx ; ecx will contain LCN |
448 | xor ecx, ecx ; ecx will contain LCN |
449 | .mftscan: |
449 | .mftscan: |
450 | add ecx, [esi+4] |
450 | add ecx, [esi+4] |
451 | sub eax, [esi] |
451 | sub eax, [esi] |
452 | jb @f |
452 | jb @f |
453 | add esi, 8 |
453 | add esi, 8 |
454 | push eax |
454 | push eax |
455 | mov eax, [ebp+NTFS.mft_retrieval_end] |
455 | mov eax, [ebp+NTFS.mft_retrieval_end] |
456 | shl eax, 3 |
456 | shl eax, 3 |
457 | add eax, [ebp+NTFS.mft_retrieval] |
457 | add eax, [ebp+NTFS.mft_retrieval] |
458 | cmp eax, esi |
458 | cmp eax, esi |
459 | pop eax |
459 | pop eax |
460 | jnz .mftscan |
460 | jnz .mftscan |
461 | jmp .nomft |
461 | jmp .nomft |
462 | @@: |
462 | @@: |
463 | push ecx |
463 | push ecx |
464 | add ecx, eax |
464 | add ecx, eax |
465 | add ecx, [esi] |
465 | add ecx, [esi] |
466 | push eax |
466 | push eax |
467 | push edx |
467 | push edx |
468 | mov eax, [ebp+NTFS.sectors_per_cluster] |
468 | mov eax, [ebp+NTFS.sectors_per_cluster] |
469 | mul ecx |
469 | mul ecx |
470 | ; eax = sector on partition |
470 | ; eax = sector on partition |
471 | pop edx |
471 | pop edx |
472 | add eax, edx |
472 | add eax, edx |
473 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
473 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
474 | pop ecx |
474 | pop ecx |
475 | neg ecx |
475 | neg ecx |
476 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
476 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
477 | sub ecx, edx |
477 | sub ecx, edx |
478 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
478 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
479 | jb @f |
479 | jb @f |
480 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
480 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
481 | @@: |
481 | @@: |
482 | ; ecx = number of sequential sectors to read |
482 | ; ecx = number of sequential sectors to read |
483 | push eax |
483 | push eax |
484 | call fs_read32_sys |
484 | call fs_read32_sys |
485 | pop edx |
485 | pop edx |
486 | test eax, eax |
486 | test eax, eax |
487 | jnz .errread |
487 | jnz .errread |
488 | add [ebp+NTFS.ntfs_cur_read], 0x200 |
488 | add [ebp+NTFS.ntfs_cur_read], 0x200 |
489 | dec [ebp+NTFS.ntfs_cur_size] |
489 | dec [ebp+NTFS.ntfs_cur_size] |
490 | inc [ebp+NTFS.ntfs_cur_offs] |
490 | inc [ebp+NTFS.ntfs_cur_offs] |
491 | add ebx, 0x200 |
491 | add ebx, 0x200 |
492 | mov [ebp+NTFS.ntfs_cur_buf], ebx |
492 | mov [ebp+NTFS.ntfs_cur_buf], ebx |
493 | lea eax, [edx+1] |
493 | lea eax, [edx+1] |
494 | loop @b |
494 | loop @b |
495 | pop ecx |
495 | pop ecx |
496 | xor eax, eax |
496 | xor eax, eax |
497 | xor edx, edx |
497 | xor edx, edx |
498 | cmp [ebp+NTFS.ntfs_cur_size], eax |
498 | cmp [ebp+NTFS.ntfs_cur_size], eax |
499 | jz @f |
499 | jz @f |
500 | add esi, 8 |
500 | add esi, 8 |
501 | push eax |
501 | push eax |
502 | mov eax, [ebp+NTFS.mft_retrieval_end] |
502 | mov eax, [ebp+NTFS.mft_retrieval_end] |
503 | shl eax, 3 |
503 | shl eax, 3 |
504 | add eax, [ebp+NTFS.mft_retrieval] |
504 | add eax, [ebp+NTFS.mft_retrieval] |
505 | cmp eax, esi |
505 | cmp eax, esi |
506 | pop eax |
506 | pop eax |
507 | jz .nomft |
507 | jz .nomft |
508 | jmp .mftscan |
508 | jmp .mftscan |
509 | @@: |
509 | @@: |
510 | popad |
510 | popad |
511 | ret |
511 | ret |
512 | .errread: |
512 | .errread: |
513 | pop ecx |
513 | pop ecx |
514 | .errret: |
514 | .errret: |
515 | mov [esp+28], eax |
515 | mov [esp+28], eax |
516 | stc |
516 | stc |
517 | popad |
517 | popad |
518 | ret |
518 | ret |
519 | .nomft: |
519 | .nomft: |
520 | ; 1. Read file record. |
520 | ; 1. Read file record. |
521 | ; N.B. This will do recursive call of read_attr for $MFT::$Data. |
521 | ; N.B. This will do recursive call of read_attr for $MFT::$Data. |
522 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
522 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
523 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
523 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
524 | and [ebp+NTFS.ntfs_attr_list], 0 |
524 | and [ebp+NTFS.ntfs_attr_list], 0 |
525 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
525 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
526 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
526 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
527 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
527 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
528 | call ntfs_read_file_record |
528 | call ntfs_read_file_record |
529 | jc .errret |
529 | jc .errret |
530 | ; 2. Find required attribute. |
530 | ; 2. Find required attribute. |
531 | mov eax, [ebp+NTFS.frs_buffer] |
531 | mov eax, [ebp+NTFS.frs_buffer] |
532 | ; a) For auxiliary records, read base record |
532 | ; a) For auxiliary records, read base record |
533 | ; N.B. If base record is present, |
533 | ; N.B. If base record is present, |
534 | ; base iRecord may be 0 (for $Mft), but SequenceNumber is nonzero |
534 | ; base iRecord may be 0 (for $Mft), but SequenceNumber is nonzero |
535 | cmp dword [eax+24h], 0 |
535 | cmp dword [eax+24h], 0 |
536 | jz @f |
536 | jz @f |
537 | mov eax, [eax+20h] |
537 | mov eax, [eax+20h] |
538 | ; test eax, eax |
538 | ; test eax, eax |
539 | ; jz @f |
539 | ; jz @f |
540 | .beginfindattr: |
540 | .beginfindattr: |
541 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
541 | mov [ebp+NTFS.ntfs_attr_iRecord], eax |
542 | call ntfs_read_file_record |
542 | call ntfs_read_file_record |
543 | jc .errret |
543 | jc .errret |
544 | @@: |
544 | @@: |
545 | ; b) Scan for required attribute and for $ATTR_LIST |
545 | ; b) Scan for required attribute and for $ATTR_LIST |
546 | mov eax, [ebp+NTFS.frs_buffer] |
546 | mov eax, [ebp+NTFS.frs_buffer] |
547 | movzx ecx, word [eax+14h] |
547 | movzx ecx, word [eax+14h] |
548 | add eax, ecx |
548 | add eax, ecx |
549 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
549 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
550 | and [ebp+NTFS.ntfs_attr_offs], 0 |
550 | and [ebp+NTFS.ntfs_attr_offs], 0 |
551 | .scanattr: |
551 | .scanattr: |
552 | cmp dword [eax], -1 |
552 | cmp dword [eax], -1 |
553 | jz .scandone |
553 | jz .scandone |
554 | cmp dword [eax], ecx |
554 | cmp dword [eax], ecx |
555 | jz .okattr |
555 | jz .okattr |
556 | cmp [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
556 | cmp [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
557 | jnz .scancont |
557 | jnz .scancont |
558 | cmp dword [eax], 0x20 ; $ATTR_LIST |
558 | cmp dword [eax], 0x20 ; $ATTR_LIST |
559 | jnz .scancont |
559 | jnz .scancont |
560 | mov [ebp+NTFS.ntfs_attr_list], eax |
560 | mov [ebp+NTFS.ntfs_attr_list], eax |
561 | jmp .scancont |
561 | jmp .scancont |
562 | .okattr: |
562 | .okattr: |
563 | ; ignore named $DATA attributes (aka NTFS streams) |
563 | ; ignore named $DATA attributes (aka NTFS streams) |
564 | cmp ecx, 0x80 |
564 | cmp ecx, 0x80 |
565 | jnz @f |
565 | jnz @f |
566 | cmp byte [eax+9], 0 |
566 | cmp byte [eax+9], 0 |
567 | jnz .scancont |
567 | jnz .scancont |
568 | @@: |
568 | @@: |
569 | mov [ebp+NTFS.ntfs_attr_offs], eax |
569 | mov [ebp+NTFS.ntfs_attr_offs], eax |
570 | .scancont: |
570 | .scancont: |
571 | add eax, [eax+4] |
571 | add eax, [eax+4] |
572 | jmp .scanattr |
572 | jmp .scanattr |
573 | .continue: |
573 | .continue: |
574 | pushad |
574 | pushad |
575 | and [ebp+NTFS.ntfs_cur_read], 0 |
575 | and [ebp+NTFS.ntfs_cur_read], 0 |
576 | .scandone: |
576 | .scandone: |
577 | ; c) Check for required offset and length |
577 | ; c) Check for required offset and length |
578 | mov ecx, [ebp+NTFS.ntfs_attr_offs] |
578 | mov ecx, [ebp+NTFS.ntfs_attr_offs] |
579 | jecxz .noattr |
579 | jecxz .noattr |
580 | push [ebp+NTFS.ntfs_cur_size] |
580 | push [ebp+NTFS.ntfs_cur_size] |
581 | push [ebp+NTFS.ntfs_cur_read] |
581 | push [ebp+NTFS.ntfs_cur_read] |
582 | call .doreadattr |
582 | call .doreadattr |
583 | pop edx |
583 | pop edx |
584 | pop ecx |
584 | pop ecx |
585 | jc @f |
585 | jc @f |
586 | cmp [ebp+NTFS.ntfs_bCanContinue], 0 |
586 | cmp [ebp+NTFS.ntfs_bCanContinue], 0 |
587 | jz @f |
587 | jz @f |
588 | sub edx, [ebp+NTFS.ntfs_cur_read] |
588 | sub edx, [ebp+NTFS.ntfs_cur_read] |
589 | neg edx |
589 | neg edx |
590 | shr edx, 9 |
590 | shr edx, 9 |
591 | sub ecx, edx |
591 | sub ecx, edx |
592 | mov [ebp+NTFS.ntfs_cur_size], ecx |
592 | mov [ebp+NTFS.ntfs_cur_size], ecx |
593 | jnz .not_in_cur |
593 | jnz .not_in_cur |
594 | @@: |
594 | @@: |
595 | popad |
595 | popad |
596 | ret |
596 | ret |
597 | .noattr: |
597 | .noattr: |
598 | .not_in_cur: |
598 | .not_in_cur: |
599 | cmp [ebp+NTFS.ntfs_cur_attr], 0x20 |
599 | cmp [ebp+NTFS.ntfs_cur_attr], 0x20 |
600 | jz @f |
600 | jz @f |
601 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
601 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
602 | test ecx, ecx |
602 | test ecx, ecx |
603 | jnz .lookattr |
603 | jnz .lookattr |
604 | .ret_is_attr: |
604 | .ret_is_attr: |
605 | and dword [esp+28], 0 |
605 | and dword [esp+28], 0 |
606 | cmp [ebp+NTFS.ntfs_attr_offs], 1 ; CF set <=> ntfs_attr_offs == 0 |
606 | cmp [ebp+NTFS.ntfs_attr_offs], 1 ; CF set <=> ntfs_attr_offs == 0 |
607 | popad |
607 | popad |
608 | ret |
608 | ret |
609 | .lookattr: |
609 | .lookattr: |
610 | ; required attribute or required offset was not found in base record; |
610 | ; required attribute or required offset was not found in base record; |
611 | ; it may be present in auxiliary records; |
611 | ; it may be present in auxiliary records; |
612 | ; scan $ATTR_LIST |
612 | ; scan $ATTR_LIST |
613 | mov eax, [ebp+NTFS.ntfs_attr_iBaseRecord] |
613 | mov eax, [ebp+NTFS.ntfs_attr_iBaseRecord] |
614 | cmp eax, -1 |
614 | cmp eax, -1 |
615 | jz @f |
615 | jz @f |
616 | call ntfs_read_file_record |
616 | call ntfs_read_file_record |
617 | jc .errret |
617 | jc .errret |
618 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
618 | or [ebp+NTFS.ntfs_attr_iBaseRecord], -1 |
619 | @@: |
619 | @@: |
620 | push [ebp+NTFS.ntfs_cur_offs] |
620 | push [ebp+NTFS.ntfs_cur_offs] |
621 | push [ebp+NTFS.ntfs_cur_size] |
621 | push [ebp+NTFS.ntfs_cur_size] |
622 | push [ebp+NTFS.ntfs_cur_read] |
622 | push [ebp+NTFS.ntfs_cur_read] |
623 | push [ebp+NTFS.ntfs_cur_buf] |
623 | push [ebp+NTFS.ntfs_cur_buf] |
624 | push dword [ebp+NTFS.ntfs_attr_size] |
624 | push dword [ebp+NTFS.ntfs_attr_size] |
625 | push dword [ebp+NTFS.ntfs_attr_size+4] |
625 | push dword [ebp+NTFS.ntfs_attr_size+4] |
626 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
626 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
627 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
627 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
628 | and [ebp+NTFS.ntfs_cur_offs], 0 |
628 | and [ebp+NTFS.ntfs_cur_offs], 0 |
629 | mov [ebp+NTFS.ntfs_cur_size], 2 |
629 | mov [ebp+NTFS.ntfs_cur_size], 2 |
630 | and [ebp+NTFS.ntfs_cur_read], 0 |
630 | and [ebp+NTFS.ntfs_cur_read], 0 |
631 | lea eax, [ebp+NTFS.ntfs_attrlist_buf] |
631 | lea eax, [ebp+NTFS.ntfs_attrlist_buf] |
632 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
632 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
633 | jnz @f |
633 | jnz @f |
634 | lea eax, [ebp+NTFS.ntfs_attrlist_mft_buf] |
634 | lea eax, [ebp+NTFS.ntfs_attrlist_mft_buf] |
635 | @@: |
635 | @@: |
636 | mov [ebp+NTFS.ntfs_cur_buf], eax |
636 | mov [ebp+NTFS.ntfs_cur_buf], eax |
637 | push eax |
637 | push eax |
638 | call .doreadattr |
638 | call .doreadattr |
639 | pop esi |
639 | pop esi |
640 | mov edx, 1 |
640 | mov edx, 1 |
641 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
641 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
642 | pop dword [ebp+NTFS.ntfs_attr_size] |
642 | pop dword [ebp+NTFS.ntfs_attr_size] |
643 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
643 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
644 | pop [ebp+NTFS.ntfs_cur_buf] |
644 | pop [ebp+NTFS.ntfs_cur_buf] |
645 | pop [ebp+NTFS.ntfs_cur_read] |
645 | pop [ebp+NTFS.ntfs_cur_read] |
646 | pop [ebp+NTFS.ntfs_cur_size] |
646 | pop [ebp+NTFS.ntfs_cur_size] |
647 | pop [ebp+NTFS.ntfs_cur_offs] |
647 | pop [ebp+NTFS.ntfs_cur_offs] |
648 | jc .errret |
648 | jc .errret |
649 | or edi, -1 |
649 | or edi, -1 |
650 | lea ecx, [ecx+esi-1Ah] |
650 | lea ecx, [ecx+esi-1Ah] |
651 | .scanliststart: |
651 | .scanliststart: |
652 | push ecx |
652 | push ecx |
653 | mov eax, [ebp+NTFS.ntfs_cur_attr] |
653 | mov eax, [ebp+NTFS.ntfs_cur_attr] |
654 | .scanlist: |
654 | .scanlist: |
655 | cmp esi, [esp] |
655 | cmp esi, [esp] |
656 | jae .scanlistdone |
656 | jae .scanlistdone |
657 | cmp eax, [esi] |
657 | cmp eax, [esi] |
658 | jz @f |
658 | jz @f |
659 | .scanlistcont: |
659 | .scanlistcont: |
660 | movzx ecx, word [esi+4] |
660 | movzx ecx, word [esi+4] |
661 | add esi, ecx |
661 | add esi, ecx |
662 | jmp .scanlist |
662 | jmp .scanlist |
663 | @@: |
663 | @@: |
664 | ; ignore named $DATA attributes (aka NTFS streams) |
664 | ; ignore named $DATA attributes (aka NTFS streams) |
665 | cmp eax, 0x80 |
665 | cmp eax, 0x80 |
666 | jnz @f |
666 | jnz @f |
667 | cmp byte [esi+6], 0 |
667 | cmp byte [esi+6], 0 |
668 | jnz .scanlistcont |
668 | jnz .scanlistcont |
669 | @@: |
669 | @@: |
670 | push eax |
670 | push eax |
671 | mov eax, [esi+8] |
671 | mov eax, [esi+8] |
672 | test eax, eax |
672 | test eax, eax |
673 | jnz .testf |
673 | jnz .testf |
674 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
674 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
675 | and eax, dword [ebp+NTFS.ntfs_attr_size+4] |
675 | and eax, dword [ebp+NTFS.ntfs_attr_size+4] |
676 | cmp eax, -1 |
676 | cmp eax, -1 |
677 | jnz .testfz |
677 | jnz .testfz |
678 | ; if attribute is in auxiliary records, its size is defined only in first |
678 | ; if attribute is in auxiliary records, its size is defined only in first |
679 | mov eax, [esi+10h] |
679 | mov eax, [esi+10h] |
680 | call ntfs_read_file_record |
680 | call ntfs_read_file_record |
681 | jnc @f |
681 | jnc @f |
682 | .errret_pop: |
682 | .errret_pop: |
683 | pop ecx ecx |
683 | pop ecx ecx |
684 | jmp .errret |
684 | jmp .errret |
685 | .errret2_pop: |
685 | .errret2_pop: |
686 | xor eax, eax |
686 | xor eax, eax |
687 | jmp .errret_pop |
687 | jmp .errret_pop |
688 | @@: |
688 | @@: |
689 | mov eax, [ebp+NTFS.frs_buffer] |
689 | mov eax, [ebp+NTFS.frs_buffer] |
690 | movzx ecx, word [eax+14h] |
690 | movzx ecx, word [eax+14h] |
691 | add eax, ecx |
691 | add eax, ecx |
692 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
692 | mov ecx, [ebp+NTFS.ntfs_cur_attr] |
693 | @@: |
693 | @@: |
694 | cmp dword [eax], -1 |
694 | cmp dword [eax], -1 |
695 | jz .errret2_pop |
695 | jz .errret2_pop |
696 | cmp dword [eax], ecx |
696 | cmp dword [eax], ecx |
697 | jz @f |
697 | jz @f |
698 | .l1: |
698 | .l1: |
699 | add eax, [eax+4] |
699 | add eax, [eax+4] |
700 | jmp @b |
700 | jmp @b |
701 | @@: |
701 | @@: |
702 | cmp eax, 0x80 |
702 | cmp eax, 0x80 |
703 | jnz @f |
703 | jnz @f |
704 | cmp byte [eax+9], 0 |
704 | cmp byte [eax+9], 0 |
705 | jnz .l1 |
705 | jnz .l1 |
706 | @@: |
706 | @@: |
707 | cmp byte [eax+8], 0 |
707 | cmp byte [eax+8], 0 |
708 | jnz .sdnores |
708 | jnz .sdnores |
709 | mov eax, [eax+10h] |
709 | mov eax, [eax+10h] |
710 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
710 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
711 | and dword [ebp+NTFS.ntfs_attr_size+4], 0 |
711 | and dword [ebp+NTFS.ntfs_attr_size+4], 0 |
712 | jmp .testfz |
712 | jmp .testfz |
713 | .sdnores: |
713 | .sdnores: |
714 | mov ecx, [eax+30h] |
714 | mov ecx, [eax+30h] |
715 | mov dword [ebp+NTFS.ntfs_attr_size], ecx |
715 | mov dword [ebp+NTFS.ntfs_attr_size], ecx |
716 | mov ecx, [eax+34h] |
716 | mov ecx, [eax+34h] |
717 | mov dword [ebp+NTFS.ntfs_attr_size+4], ecx |
717 | mov dword [ebp+NTFS.ntfs_attr_size+4], ecx |
718 | .testfz: |
718 | .testfz: |
719 | xor eax, eax |
719 | xor eax, eax |
720 | .testf: |
720 | .testf: |
721 | imul eax, [ebp+NTFS.sectors_per_cluster] |
721 | imul eax, [ebp+NTFS.sectors_per_cluster] |
722 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
722 | cmp eax, [ebp+NTFS.ntfs_cur_offs] |
723 | pop eax |
723 | pop eax |
724 | ja @f |
724 | ja @f |
725 | mov edi, [esi+10h] ; keep previous iRecord |
725 | mov edi, [esi+10h] ; keep previous iRecord |
726 | jmp .scanlistcont |
726 | jmp .scanlistcont |
727 | @@: |
727 | @@: |
728 | pop ecx |
728 | pop ecx |
729 | .scanlistfound: |
729 | .scanlistfound: |
730 | cmp edi, -1 |
730 | cmp edi, -1 |
731 | jnz @f |
731 | jnz @f |
732 | popad |
732 | popad |
733 | ret |
733 | ret |
734 | @@: |
734 | @@: |
735 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
735 | mov eax, [ebp+NTFS.ntfs_cur_iRecord] |
736 | mov [ebp+NTFS.ntfs_attr_iBaseRecord], eax |
736 | mov [ebp+NTFS.ntfs_attr_iBaseRecord], eax |
737 | mov eax, edi |
737 | mov eax, edi |
738 | jmp .beginfindattr |
738 | jmp .beginfindattr |
739 | .scanlistdone: |
739 | .scanlistdone: |
740 | pop ecx |
740 | pop ecx |
741 | sub ecx, ebp |
741 | sub ecx, ebp |
742 | sub ecx, NTFS.ntfs_attrlist_buf-1Ah |
742 | sub ecx, NTFS.ntfs_attrlist_buf-1Ah |
743 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
743 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
744 | jnz @f |
744 | jnz @f |
745 | sub ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
745 | sub ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
746 | @@: |
746 | @@: |
747 | cmp ecx, 0x400 |
747 | cmp ecx, 0x400 |
748 | jnz .scanlistfound |
748 | jnz .scanlistfound |
749 | inc edx |
749 | inc edx |
750 | push esi edi |
750 | push esi edi |
751 | lea esi, [ebp+NTFS.ntfs_attrlist_buf+0x200] |
751 | lea esi, [ebp+NTFS.ntfs_attrlist_buf+0x200] |
752 | lea edi, [ebp+NTFS.ntfs_attrlist_buf] |
752 | lea edi, [ebp+NTFS.ntfs_attrlist_buf] |
753 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
753 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
754 | jnz @f |
754 | jnz @f |
755 | lea esi, [ebp+NTFS.ntfs_attrlist_mft_buf+0x200] |
755 | lea esi, [ebp+NTFS.ntfs_attrlist_mft_buf+0x200] |
756 | lea edi, [ebp+NTFS.ntfs_attrlist_mft_buf] |
756 | lea edi, [ebp+NTFS.ntfs_attrlist_mft_buf] |
757 | @@: |
757 | @@: |
758 | mov ecx, 0x200/4 |
758 | mov ecx, 0x200/4 |
759 | rep movsd |
759 | rep movsd |
760 | mov eax, edi |
760 | mov eax, edi |
761 | pop edi esi |
761 | pop edi esi |
762 | sub esi, 0x200 |
762 | sub esi, 0x200 |
763 | push [ebp+NTFS.ntfs_cur_offs] |
763 | push [ebp+NTFS.ntfs_cur_offs] |
764 | push [ebp+NTFS.ntfs_cur_size] |
764 | push [ebp+NTFS.ntfs_cur_size] |
765 | push [ebp+NTFS.ntfs_cur_read] |
765 | push [ebp+NTFS.ntfs_cur_read] |
766 | push [ebp+NTFS.ntfs_cur_buf] |
766 | push [ebp+NTFS.ntfs_cur_buf] |
767 | push dword [ebp+NTFS.ntfs_attr_size] |
767 | push dword [ebp+NTFS.ntfs_attr_size] |
768 | push dword [ebp+NTFS.ntfs_attr_size+4] |
768 | push dword [ebp+NTFS.ntfs_attr_size+4] |
769 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
769 | or dword [ebp+NTFS.ntfs_attr_size], -1 |
770 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
770 | or dword [ebp+NTFS.ntfs_attr_size+4], -1 |
771 | mov [ebp+NTFS.ntfs_cur_offs], edx |
771 | mov [ebp+NTFS.ntfs_cur_offs], edx |
772 | mov [ebp+NTFS.ntfs_cur_size], 1 |
772 | mov [ebp+NTFS.ntfs_cur_size], 1 |
773 | and [ebp+NTFS.ntfs_cur_read], 0 |
773 | and [ebp+NTFS.ntfs_cur_read], 0 |
774 | mov [ebp+NTFS.ntfs_cur_buf], eax |
774 | mov [ebp+NTFS.ntfs_cur_buf], eax |
775 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
775 | mov ecx, [ebp+NTFS.ntfs_attr_list] |
776 | push esi edx edi |
776 | push esi edx edi |
777 | call .doreadattr |
777 | call .doreadattr |
778 | pop edi edx esi |
778 | pop edi edx esi |
779 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
779 | mov ecx, [ebp+NTFS.ntfs_cur_read] |
780 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
780 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
781 | pop dword [ebp+NTFS.ntfs_attr_size] |
781 | pop dword [ebp+NTFS.ntfs_attr_size] |
782 | pop [ebp+NTFS.ntfs_cur_buf] |
782 | pop [ebp+NTFS.ntfs_cur_buf] |
783 | pop [ebp+NTFS.ntfs_cur_read] |
783 | pop [ebp+NTFS.ntfs_cur_read] |
784 | pop [ebp+NTFS.ntfs_cur_size] |
784 | pop [ebp+NTFS.ntfs_cur_size] |
785 | pop [ebp+NTFS.ntfs_cur_offs] |
785 | pop [ebp+NTFS.ntfs_cur_offs] |
786 | jc .errret |
786 | jc .errret |
787 | lea ecx, [ecx+ebp+NTFS.ntfs_attrlist_buf+0x200-0x1A] |
787 | lea ecx, [ecx+ebp+NTFS.ntfs_attrlist_buf+0x200-0x1A] |
788 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
788 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
789 | jnz .scanliststart |
789 | jnz .scanliststart |
790 | add ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
790 | add ecx, NTFS.ntfs_attrlist_mft_buf-NTFS.ntfs_attrlist_buf |
791 | jmp .scanliststart |
791 | jmp .scanliststart |
792 | 792 | ||
793 | .doreadattr: |
793 | .doreadattr: |
794 | mov [ebp+NTFS.ntfs_bCanContinue], 0 |
794 | mov [ebp+NTFS.ntfs_bCanContinue], 0 |
795 | cmp byte [ecx+8], 0 |
795 | cmp byte [ecx+8], 0 |
796 | jnz .nonresident |
796 | jnz .nonresident |
797 | mov eax, [ecx+10h] ; length |
797 | mov eax, [ecx+10h] ; length |
798 | mov esi, eax |
798 | mov esi, eax |
799 | mov edx, [ebp+NTFS.ntfs_cur_offs] |
799 | mov edx, [ebp+NTFS.ntfs_cur_offs] |
800 | shr eax, 9 |
800 | shr eax, 9 |
801 | cmp eax, edx |
801 | cmp eax, edx |
802 | jb .okret |
802 | jb .okret |
803 | shl edx, 9 |
803 | shl edx, 9 |
804 | sub esi, edx |
804 | sub esi, edx |
805 | movzx eax, word [ecx+14h] |
805 | movzx eax, word [ecx+14h] |
806 | add edx, eax |
806 | add edx, eax |
807 | add edx, ecx ; edx -> data |
807 | add edx, ecx ; edx -> data |
808 | mov eax, [ebp+NTFS.ntfs_cur_size] |
808 | mov eax, [ebp+NTFS.ntfs_cur_size] |
809 | cmp eax, (0xFFFFFFFF shr 9)+1 |
809 | cmp eax, (0xFFFFFFFF shr 9)+1 |
810 | jbe @f |
810 | jbe @f |
811 | mov eax, (0xFFFFFFFF shr 9)+1 |
811 | mov eax, (0xFFFFFFFF shr 9)+1 |
812 | @@: |
812 | @@: |
813 | shl eax, 9 |
813 | shl eax, 9 |
814 | cmp eax, esi |
814 | cmp eax, esi |
815 | jbe @f |
815 | jbe @f |
816 | mov eax, esi |
816 | mov eax, esi |
817 | @@: |
817 | @@: |
818 | ; eax = length, edx -> data |
818 | ; eax = length, edx -> data |
819 | mov [ebp+NTFS.ntfs_cur_read], eax |
819 | mov [ebp+NTFS.ntfs_cur_read], eax |
820 | mov ecx, eax |
820 | mov ecx, eax |
821 | mov eax, edx |
821 | mov eax, edx |
822 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
822 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
823 | call memmove |
823 | call memmove |
824 | and [ebp+NTFS.ntfs_cur_size], 0 ; CF=0 |
824 | and [ebp+NTFS.ntfs_cur_size], 0 ; CF=0 |
825 | ret |
825 | ret |
826 | .nonresident: |
826 | .nonresident: |
827 | ; Not all auxiliary records contain correct FileSize info |
827 | ; Not all auxiliary records contain correct FileSize info |
828 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
828 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
829 | mov edx, dword [ebp+NTFS.ntfs_attr_size+4] |
829 | mov edx, dword [ebp+NTFS.ntfs_attr_size+4] |
830 | push eax |
830 | push eax |
831 | and eax, edx |
831 | and eax, edx |
832 | cmp eax, -1 |
832 | cmp eax, -1 |
833 | pop eax |
833 | pop eax |
834 | jnz @f |
834 | jnz @f |
835 | mov eax, [ecx+30h] ; FileSize |
835 | mov eax, [ecx+30h] ; FileSize |
836 | mov edx, [ecx+34h] |
836 | mov edx, [ecx+34h] |
837 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
837 | mov dword [ebp+NTFS.ntfs_attr_size], eax |
838 | mov dword [ebp+NTFS.ntfs_attr_size+4], edx |
838 | mov dword [ebp+NTFS.ntfs_attr_size+4], edx |
839 | @@: |
839 | @@: |
840 | add eax, 0x1FF |
840 | add eax, 0x1FF |
841 | adc edx, 0 |
841 | adc edx, 0 |
842 | shrd eax, edx, 9 |
842 | shrd eax, edx, 9 |
843 | sub eax, [ebp+NTFS.ntfs_cur_offs] |
843 | sub eax, [ebp+NTFS.ntfs_cur_offs] |
844 | ja @f |
844 | ja @f |
845 | ; return with nothing read |
845 | ; return with nothing read |
846 | and [ebp+NTFS.ntfs_cur_size], 0 |
846 | and [ebp+NTFS.ntfs_cur_size], 0 |
847 | .okret: |
847 | .okret: |
848 | clc |
848 | clc |
849 | ret |
849 | ret |
850 | @@: |
850 | @@: |
851 | ; reduce read length |
851 | ; reduce read length |
852 | and [ebp+NTFS.ntfs_cur_tail], 0 |
852 | and [ebp+NTFS.ntfs_cur_tail], 0 |
853 | cmp [ebp+NTFS.ntfs_cur_size], eax |
853 | cmp [ebp+NTFS.ntfs_cur_size], eax |
854 | jb @f |
854 | jb @f |
855 | mov [ebp+NTFS.ntfs_cur_size], eax |
855 | mov [ebp+NTFS.ntfs_cur_size], eax |
856 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
856 | mov eax, dword [ebp+NTFS.ntfs_attr_size] |
857 | and eax, 0x1FF |
857 | and eax, 0x1FF |
858 | mov [ebp+NTFS.ntfs_cur_tail], eax |
858 | mov [ebp+NTFS.ntfs_cur_tail], eax |
859 | @@: |
859 | @@: |
860 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
860 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
861 | jz .okret |
861 | jz .okret |
862 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
862 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
863 | xor edx, edx |
863 | xor edx, edx |
864 | div [ebp+NTFS.sectors_per_cluster] |
864 | div [ebp+NTFS.sectors_per_cluster] |
865 | sub eax, [ecx+10h] ; first_vbo |
865 | sub eax, [ecx+10h] ; first_vbo |
866 | jb .okret |
866 | jb .okret |
867 | ; eax = cluster, edx = starting sector |
867 | ; eax = cluster, edx = starting sector |
868 | sub esp, 10h |
868 | sub esp, 10h |
869 | movzx esi, word [ecx+20h] ; mcb_info_ofs |
869 | movzx esi, word [ecx+20h] ; mcb_info_ofs |
870 | add esi, ecx |
870 | add esi, ecx |
871 | xor edi, edi |
871 | xor edi, edi |
872 | .readloop: |
872 | .readloop: |
873 | call ntfs_decode_mcb_entry |
873 | call ntfs_decode_mcb_entry |
874 | jnc .break |
874 | jnc .break |
875 | add edi, [esp+8] |
875 | add edi, [esp+8] |
876 | sub eax, [esp] |
876 | sub eax, [esp] |
877 | jae .readloop |
877 | jae .readloop |
878 | push ecx |
878 | push ecx |
879 | push eax |
879 | push eax |
880 | add eax, [esp+8] |
880 | add eax, [esp+8] |
881 | add eax, edi |
881 | add eax, edi |
882 | imul eax, [ebp+NTFS.sectors_per_cluster] |
882 | imul eax, [ebp+NTFS.sectors_per_cluster] |
883 | add eax, edx |
883 | add eax, edx |
884 | pop ecx |
884 | pop ecx |
885 | neg ecx |
885 | neg ecx |
886 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
886 | imul ecx, [ebp+NTFS.sectors_per_cluster] |
887 | sub ecx, edx |
887 | sub ecx, edx |
888 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
888 | cmp ecx, [ebp+NTFS.ntfs_cur_size] |
889 | jb @f |
889 | jb @f |
890 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
890 | mov ecx, [ebp+NTFS.ntfs_cur_size] |
891 | @@: |
891 | @@: |
892 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
892 | mov ebx, [ebp+NTFS.ntfs_cur_buf] |
893 | @@: |
893 | @@: |
894 | push eax |
894 | push eax |
895 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
895 | cmp [ebp+NTFS.ntfs_cur_attr], 0x80 |
896 | jnz .sys |
896 | jnz .sys |
897 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
897 | cmp [ebp+NTFS.ntfs_cur_iRecord], 0 |
898 | jz .sys |
898 | jz .sys |
899 | call fs_read32_app |
899 | call fs_read32_app |
900 | jmp .appsys |
900 | jmp .appsys |
901 | .sys: |
901 | .sys: |
902 | call fs_read32_sys |
902 | call fs_read32_sys |
903 | .appsys: |
903 | .appsys: |
904 | pop edx |
904 | pop edx |
905 | test eax, eax |
905 | test eax, eax |
906 | jnz .errread2 |
906 | jnz .errread2 |
907 | add ebx, 0x200 |
907 | add ebx, 0x200 |
908 | mov [ebp+NTFS.ntfs_cur_buf], ebx |
908 | mov [ebp+NTFS.ntfs_cur_buf], ebx |
909 | lea eax, [edx+1] |
909 | lea eax, [edx+1] |
910 | add [ebp+NTFS.ntfs_cur_read], 0x200 |
910 | add [ebp+NTFS.ntfs_cur_read], 0x200 |
911 | dec [ebp+NTFS.ntfs_cur_size] |
911 | dec [ebp+NTFS.ntfs_cur_size] |
912 | inc [ebp+NTFS.ntfs_cur_offs] |
912 | inc [ebp+NTFS.ntfs_cur_offs] |
913 | loop @b |
913 | loop @b |
914 | pop ecx |
914 | pop ecx |
915 | xor eax, eax |
915 | xor eax, eax |
916 | xor edx, edx |
916 | xor edx, edx |
917 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
917 | cmp [ebp+NTFS.ntfs_cur_size], 0 |
918 | jnz .readloop |
918 | jnz .readloop |
919 | add esp, 10h |
919 | add esp, 10h |
920 | mov eax, [ebp+NTFS.ntfs_cur_tail] |
920 | mov eax, [ebp+NTFS.ntfs_cur_tail] |
921 | test eax, eax |
921 | test eax, eax |
922 | jz @f |
922 | jz @f |
923 | sub eax, 0x200 |
923 | sub eax, 0x200 |
924 | add [ebp+NTFS.ntfs_cur_read], eax |
924 | add [ebp+NTFS.ntfs_cur_read], eax |
925 | @@: |
925 | @@: |
926 | clc |
926 | clc |
927 | ret |
927 | ret |
928 | .errread2: |
928 | .errread2: |
929 | pop ecx |
929 | pop ecx |
930 | add esp, 10h |
930 | add esp, 10h |
931 | stc |
931 | stc |
932 | ret |
932 | ret |
933 | .break: |
933 | .break: |
934 | add esp, 10h ; CF=0 |
934 | add esp, 10h ; CF=0 |
935 | mov [ebp+NTFS.ntfs_bCanContinue], 1 |
935 | mov [ebp+NTFS.ntfs_bCanContinue], 1 |
936 | ret |
936 | ret |
937 | 937 | ||
938 | ntfs_read_file_record: |
938 | ntfs_read_file_record: |
939 | ; in: eax=iRecord |
939 | ; in: eax=iRecord |
940 | ; out: [ebp+NTFS.frs_buffer] contains information |
940 | ; out: [ebp+NTFS.frs_buffer] contains information |
941 | ; CF=1 - failed, in this case eax=0 => something with FS, eax nonzero => disk error |
941 | ; CF=1 - failed, in this case eax=0 => something with FS, eax nonzero => disk error |
942 | ; Read attr $DATA of $Mft, starting from eax*[ebp+NTFS.frs_size] |
942 | ; Read attr $DATA of $Mft, starting from eax*[ebp+NTFS.frs_size] |
943 | push ecx edx |
943 | push ecx edx |
944 | mov ecx, [ebp+NTFS.frs_size] |
944 | mov ecx, [ebp+NTFS.frs_size] |
945 | mul ecx |
945 | mul ecx |
946 | shrd eax, edx, 9 |
946 | shrd eax, edx, 9 |
947 | shr edx, 9 |
947 | shr edx, 9 |
948 | jnz .errret |
948 | jnz .errret |
949 | push [ebp+NTFS.ntfs_attr_iRecord] |
949 | push [ebp+NTFS.ntfs_attr_iRecord] |
950 | push [ebp+NTFS.ntfs_attr_iBaseRecord] |
950 | push [ebp+NTFS.ntfs_attr_iBaseRecord] |
951 | push [ebp+NTFS.ntfs_attr_offs] |
951 | push [ebp+NTFS.ntfs_attr_offs] |
952 | push [ebp+NTFS.ntfs_attr_list] |
952 | push [ebp+NTFS.ntfs_attr_list] |
953 | push dword [ebp+NTFS.ntfs_attr_size+4] |
953 | push dword [ebp+NTFS.ntfs_attr_size+4] |
954 | push dword [ebp+NTFS.ntfs_attr_size] |
954 | push dword [ebp+NTFS.ntfs_attr_size] |
955 | push [ebp+NTFS.ntfs_cur_iRecord] |
955 | push [ebp+NTFS.ntfs_cur_iRecord] |
956 | push [ebp+NTFS.ntfs_cur_attr] |
956 | push [ebp+NTFS.ntfs_cur_attr] |
957 | push [ebp+NTFS.ntfs_cur_offs] |
957 | push [ebp+NTFS.ntfs_cur_offs] |
958 | push [ebp+NTFS.ntfs_cur_size] |
958 | push [ebp+NTFS.ntfs_cur_size] |
959 | push [ebp+NTFS.ntfs_cur_buf] |
959 | push [ebp+NTFS.ntfs_cur_buf] |
960 | push [ebp+NTFS.ntfs_cur_read] |
960 | push [ebp+NTFS.ntfs_cur_read] |
961 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
961 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
962 | and [ebp+NTFS.ntfs_cur_iRecord], 0 ; $Mft |
962 | and [ebp+NTFS.ntfs_cur_iRecord], 0 ; $Mft |
963 | mov [ebp+NTFS.ntfs_cur_offs], eax |
963 | mov [ebp+NTFS.ntfs_cur_offs], eax |
964 | shr ecx, 9 |
964 | shr ecx, 9 |
965 | mov [ebp+NTFS.ntfs_cur_size], ecx |
965 | mov [ebp+NTFS.ntfs_cur_size], ecx |
966 | mov eax, [ebp+NTFS.frs_buffer] |
966 | mov eax, [ebp+NTFS.frs_buffer] |
967 | mov [ebp+NTFS.ntfs_cur_buf], eax |
967 | mov [ebp+NTFS.ntfs_cur_buf], eax |
968 | call ntfs_read_attr |
968 | call ntfs_read_attr |
969 | mov edx, [ebp+NTFS.ntfs_cur_read] |
969 | mov edx, [ebp+NTFS.ntfs_cur_read] |
970 | pop [ebp+NTFS.ntfs_cur_read] |
970 | pop [ebp+NTFS.ntfs_cur_read] |
971 | pop [ebp+NTFS.ntfs_cur_buf] |
971 | pop [ebp+NTFS.ntfs_cur_buf] |
972 | pop [ebp+NTFS.ntfs_cur_size] |
972 | pop [ebp+NTFS.ntfs_cur_size] |
973 | pop [ebp+NTFS.ntfs_cur_offs] |
973 | pop [ebp+NTFS.ntfs_cur_offs] |
974 | pop [ebp+NTFS.ntfs_cur_attr] |
974 | pop [ebp+NTFS.ntfs_cur_attr] |
975 | pop [ebp+NTFS.ntfs_cur_iRecord] |
975 | pop [ebp+NTFS.ntfs_cur_iRecord] |
976 | pop dword [ebp+NTFS.ntfs_attr_size] |
976 | pop dword [ebp+NTFS.ntfs_attr_size] |
977 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
977 | pop dword [ebp+NTFS.ntfs_attr_size+4] |
978 | pop [ebp+NTFS.ntfs_attr_list] |
978 | pop [ebp+NTFS.ntfs_attr_list] |
979 | pop [ebp+NTFS.ntfs_attr_offs] |
979 | pop [ebp+NTFS.ntfs_attr_offs] |
980 | pop [ebp+NTFS.ntfs_attr_iBaseRecord] |
980 | pop [ebp+NTFS.ntfs_attr_iBaseRecord] |
981 | pop [ebp+NTFS.ntfs_attr_iRecord] |
981 | pop [ebp+NTFS.ntfs_attr_iRecord] |
982 | jc .ret |
982 | jc .ret |
983 | cmp edx, [ebp+NTFS.frs_size] |
983 | cmp edx, [ebp+NTFS.frs_size] |
984 | jnz .errret |
984 | jnz .errret |
985 | mov eax, [ebp+NTFS.frs_buffer] |
985 | mov eax, [ebp+NTFS.frs_buffer] |
986 | cmp dword [eax], 'FILE' |
986 | cmp dword [eax], 'FILE' |
987 | jnz .errret |
987 | jnz .errret |
988 | push ebx |
988 | push ebx |
989 | mov ebx, eax |
989 | mov ebx, eax |
990 | call ntfs_restore_usa_frs |
990 | call ntfs_restore_usa_frs |
991 | pop ebx |
991 | pop ebx |
992 | jc .errret |
992 | jc .errret |
993 | .ret: |
993 | .ret: |
994 | pop edx ecx |
994 | pop edx ecx |
995 | ret |
995 | ret |
996 | .errret: |
996 | .errret: |
997 | pop edx ecx |
997 | pop edx ecx |
998 | xor eax, eax |
998 | xor eax, eax |
999 | stc |
999 | stc |
1000 | ret |
1000 | ret |
1001 | 1001 | ||
1002 | ntfs_restore_usa_frs: |
1002 | ntfs_restore_usa_frs: |
1003 | mov eax, [ebp+NTFS.frs_size] |
1003 | mov eax, [ebp+NTFS.frs_size] |
1004 | ntfs_restore_usa: |
1004 | ntfs_restore_usa: |
1005 | pushad |
1005 | pushad |
1006 | shr eax, 9 |
1006 | shr eax, 9 |
1007 | mov ecx, eax |
1007 | mov ecx, eax |
1008 | inc eax |
1008 | inc eax |
1009 | cmp [ebx+6], ax |
1009 | cmp [ebx+6], ax |
1010 | jnz .err |
1010 | jnz .err |
1011 | movzx eax, word [ebx+4] |
1011 | movzx eax, word [ebx+4] |
1012 | lea esi, [eax+ebx] |
1012 | lea esi, [eax+ebx] |
1013 | lodsw |
1013 | lodsw |
1014 | mov edx, eax |
1014 | mov edx, eax |
1015 | lea edi, [ebx+0x1FE] |
1015 | lea edi, [ebx+0x1FE] |
1016 | @@: |
1016 | @@: |
1017 | cmp [edi], dx |
1017 | cmp [edi], dx |
1018 | jnz .err |
1018 | jnz .err |
1019 | lodsw |
1019 | lodsw |
1020 | stosw |
1020 | stosw |
1021 | add edi, 0x1FE |
1021 | add edi, 0x1FE |
1022 | loop @b |
1022 | loop @b |
1023 | popad |
1023 | popad |
1024 | clc |
1024 | clc |
1025 | ret |
1025 | ret |
1026 | .err: |
1026 | .err: |
1027 | popad |
1027 | popad |
1028 | stc |
1028 | stc |
1029 | ret |
1029 | ret |
1030 | 1030 | ||
1031 | ntfs_decode_mcb_entry: |
1031 | ntfs_decode_mcb_entry: |
1032 | push eax ecx edi |
1032 | push eax ecx edi |
1033 | lea edi, [esp+16] |
1033 | lea edi, [esp+16] |
1034 | xor eax, eax |
1034 | xor eax, eax |
1035 | lodsb |
1035 | lodsb |
1036 | test al, al |
1036 | test al, al |
1037 | jz .end |
1037 | jz .end |
1038 | mov ecx, eax |
1038 | mov ecx, eax |
1039 | and ecx, 0xF |
1039 | and ecx, 0xF |
1040 | cmp ecx, 8 |
1040 | cmp ecx, 8 |
1041 | ja .end |
1041 | ja .end |
1042 | push ecx |
1042 | push ecx |
1043 | rep movsb |
1043 | rep movsb |
1044 | pop ecx |
1044 | pop ecx |
1045 | sub ecx, 8 |
1045 | sub ecx, 8 |
1046 | neg ecx |
1046 | neg ecx |
1047 | cmp byte [esi-1], 80h |
1047 | cmp byte [esi-1], 80h |
1048 | jae .end |
1048 | jae .end |
1049 | push eax |
1049 | push eax |
1050 | xor eax, eax |
1050 | xor eax, eax |
1051 | rep stosb |
1051 | rep stosb |
1052 | pop ecx |
1052 | pop ecx |
1053 | shr ecx, 4 |
1053 | shr ecx, 4 |
1054 | cmp ecx, 8 |
1054 | cmp ecx, 8 |
1055 | ja .end |
1055 | ja .end |
1056 | push ecx |
1056 | push ecx |
1057 | rep movsb |
1057 | rep movsb |
1058 | pop ecx |
1058 | pop ecx |
1059 | sub ecx, 8 |
1059 | sub ecx, 8 |
1060 | neg ecx |
1060 | neg ecx |
1061 | cmp byte [esi-1], 80h |
1061 | cmp byte [esi-1], 80h |
1062 | cmc |
1062 | cmc |
1063 | sbb eax, eax |
1063 | sbb eax, eax |
1064 | rep stosb |
1064 | rep stosb |
1065 | stc |
1065 | stc |
1066 | .end: |
1066 | .end: |
1067 | pop edi ecx eax |
1067 | pop edi ecx eax |
1068 | ret |
1068 | ret |
1069 | 1069 | ||
1070 | unichar_toupper: |
1070 | unichar_toupper: |
1071 | push eax |
1071 | push eax |
1072 | call uni2ansi_char |
1072 | call uni2ansi_char |
1073 | cmp al, '_' |
1073 | cmp al, '_' |
1074 | jz .unk |
1074 | jz .unk |
1075 | add esp, 4 |
1075 | add esp, 4 |
1076 | call char_toupper |
1076 | call char_toupper |
1077 | jmp ansi2uni_char |
1077 | jmp ansi2uni_char |
1078 | .unk: |
1078 | .unk: |
1079 | pop eax |
1079 | pop eax |
1080 | ret |
1080 | ret |
1081 | 1081 | ||
1082 | ntfs_find_lfn: |
1082 | ntfs_find_lfn: |
1083 | ; in: esi+[esp+4] -> name |
1083 | ; in: esi+[esp+4] -> name |
1084 | ; out: CF=1 - file not found |
1084 | ; out: CF=1 - file not found |
1085 | ; else CF=0, [ebp+NTFS.ntfs_cur_iRecord] valid, eax->record in parent directory |
1085 | ; else CF=0, [ebp+NTFS.ntfs_cur_iRecord] valid, eax->record in parent directory |
1086 | mov [ebp+NTFS.ntfs_cur_iRecord], 5 ; start parse from root cluster |
1086 | mov [ebp+NTFS.ntfs_cur_iRecord], 5 ; start parse from root cluster |
1087 | .doit2: |
1087 | .doit2: |
1088 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1088 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1089 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1089 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1090 | mov eax, [ebp+NTFS.cur_index_size] |
1090 | mov eax, [ebp+NTFS.cur_index_size] |
1091 | mov [ebp+NTFS.ntfs_cur_size], eax |
1091 | mov [ebp+NTFS.ntfs_cur_size], eax |
1092 | mov eax, [ebp+NTFS.cur_index_buf] |
1092 | mov eax, [ebp+NTFS.cur_index_buf] |
1093 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1093 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1094 | call ntfs_read_attr |
1094 | call ntfs_read_attr |
1095 | jnc @f |
1095 | jnc @f |
1096 | .ret: |
1096 | .ret: |
1097 | ret 4 |
1097 | ret 4 |
1098 | @@: |
1098 | @@: |
1099 | xor eax, eax |
1099 | xor eax, eax |
1100 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
1100 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
1101 | jc .ret |
1101 | jc .ret |
1102 | pushad |
1102 | pushad |
1103 | mov esi, [ebp+NTFS.cur_index_buf] |
1103 | mov esi, [ebp+NTFS.cur_index_buf] |
1104 | mov eax, [esi+14h] |
1104 | mov eax, [esi+14h] |
1105 | add eax, 10h |
1105 | add eax, 10h |
1106 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1106 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1107 | jae .readok1 |
1107 | jae .readok1 |
1108 | add eax, 1FFh |
1108 | add eax, 1FFh |
1109 | shr eax, 9 |
1109 | shr eax, 9 |
1110 | cmp eax, [ebp+NTFS.cur_index_size] |
1110 | cmp eax, [ebp+NTFS.cur_index_size] |
1111 | ja @f |
1111 | ja @f |
1112 | .stc_ret: |
1112 | .stc_ret: |
1113 | popad |
1113 | popad |
1114 | stc |
1114 | stc |
1115 | ret 4 |
1115 | ret 4 |
1116 | @@: |
1116 | @@: |
1117 | ; reallocate |
1117 | ; reallocate |
1118 | push eax |
1118 | push eax |
1119 | push [ebp+NTFS.cur_index_buf] |
1119 | push [ebp+NTFS.cur_index_buf] |
1120 | call kernel_free |
1120 | call kernel_free |
1121 | pop eax |
1121 | pop eax |
1122 | mov [ebp+NTFS.cur_index_size], eax |
1122 | mov [ebp+NTFS.cur_index_size], eax |
1123 | push eax |
1123 | push eax |
1124 | call kernel_alloc |
1124 | call kernel_alloc |
1125 | test eax, eax |
1125 | test eax, eax |
1126 | jnz @f |
1126 | jnz @f |
1127 | and [ebp+NTFS.cur_index_size], 0 |
1127 | and [ebp+NTFS.cur_index_size], 0 |
1128 | and [ebp+NTFS.cur_index_buf], 0 |
1128 | and [ebp+NTFS.cur_index_buf], 0 |
1129 | jmp .stc_ret |
1129 | jmp .stc_ret |
1130 | @@: |
1130 | @@: |
1131 | mov [ebp+NTFS.cur_index_buf], eax |
1131 | mov [ebp+NTFS.cur_index_buf], eax |
1132 | popad |
1132 | popad |
1133 | jmp .doit2 |
1133 | jmp .doit2 |
1134 | .readok1: |
1134 | .readok1: |
1135 | mov edx, [esi+8] ; subnode_size |
1135 | mov edx, [esi+8] ; subnode_size |
1136 | shr edx, 9 |
1136 | shr edx, 9 |
1137 | cmp edx, [ebp+NTFS.cur_index_size] |
1137 | cmp edx, [ebp+NTFS.cur_index_size] |
1138 | jbe .ok2 |
1138 | jbe .ok2 |
1139 | push esi edx |
1139 | push esi edx |
1140 | push edx |
1140 | push edx |
1141 | call kernel_alloc |
1141 | call kernel_alloc |
1142 | pop edx esi |
1142 | pop edx esi |
1143 | test eax, eax |
1143 | test eax, eax |
1144 | jz .stc_ret |
1144 | jz .stc_ret |
1145 | mov edi, eax |
1145 | mov edi, eax |
1146 | mov ecx, [ebp+NTFS.cur_index_size] |
1146 | mov ecx, [ebp+NTFS.cur_index_size] |
1147 | shl ecx, 9-2 |
1147 | shl ecx, 9-2 |
1148 | rep movsd |
1148 | rep movsd |
1149 | mov esi, eax |
1149 | mov esi, eax |
1150 | mov [ebp+NTFS.cur_index_size], edx |
1150 | mov [ebp+NTFS.cur_index_size], edx |
1151 | push esi edx |
1151 | push esi edx |
1152 | push [ebp+NTFS.cur_index_buf] |
1152 | push [ebp+NTFS.cur_index_buf] |
1153 | call kernel_free |
1153 | call kernel_free |
1154 | pop edx esi |
1154 | pop edx esi |
1155 | mov [ebp+NTFS.cur_index_buf], esi |
1155 | mov [ebp+NTFS.cur_index_buf], esi |
1156 | .ok2: |
1156 | .ok2: |
1157 | add esi, 10h |
1157 | add esi, 10h |
1158 | mov edi, [esp+4] |
1158 | mov edi, [esp+4] |
1159 | ; edi -> name, esi -> current index data, edx = subnode size |
1159 | ; edi -> name, esi -> current index data, edx = subnode size |
1160 | .scanloop: |
1160 | .scanloop: |
1161 | add esi, [esi] |
1161 | add esi, [esi] |
1162 | .scanloopint: |
1162 | .scanloopint: |
1163 | test byte [esi+0Ch], 2 |
1163 | test byte [esi+0Ch], 2 |
1164 | jnz .subnode |
1164 | jnz .subnode |
1165 | push esi |
1165 | push esi |
1166 | add esi, 0x52 |
1166 | add esi, 0x52 |
1167 | movzx ecx, byte [esi-2] |
1167 | movzx ecx, byte [esi-2] |
1168 | push edi |
1168 | push edi |
1169 | @@: |
1169 | @@: |
1170 | lodsw |
1170 | lodsw |
1171 | call unichar_toupper |
1171 | call unichar_toupper |
1172 | push eax |
1172 | push eax |
1173 | mov al, [edi] |
1173 | mov al, [edi] |
1174 | inc edi |
1174 | inc edi |
1175 | cmp al, '/' |
1175 | cmp al, '/' |
1176 | jz .slash |
1176 | jz .slash |
1177 | call char_toupper |
1177 | call char_toupper |
1178 | call ansi2uni_char |
1178 | call ansi2uni_char |
1179 | cmp ax, [esp] |
1179 | cmp ax, [esp] |
1180 | pop eax |
1180 | pop eax |
1181 | loopz @b |
1181 | loopz @b |
1182 | jz .found |
1182 | jz .found |
1183 | pop edi |
1183 | pop edi |
1184 | pop esi |
1184 | pop esi |
1185 | jb .subnode |
1185 | jb .subnode |
1186 | .scanloopcont: |
1186 | .scanloopcont: |
1187 | movzx eax, word [esi+8] |
1187 | movzx eax, word [esi+8] |
1188 | add esi, eax |
1188 | add esi, eax |
1189 | jmp .scanloopint |
1189 | jmp .scanloopint |
1190 | .slash: |
1190 | .slash: |
1191 | pop eax |
1191 | pop eax |
1192 | pop edi |
1192 | pop edi |
1193 | pop esi |
1193 | pop esi |
1194 | .subnode: |
1194 | .subnode: |
1195 | test byte [esi+0Ch], 1 |
1195 | test byte [esi+0Ch], 1 |
1196 | jz .notfound |
1196 | jz .notfound |
1197 | movzx eax, word [esi+8] |
1197 | movzx eax, word [esi+8] |
1198 | mov eax, [esi+eax-8] |
1198 | mov eax, [esi+eax-8] |
1199 | imul eax, [ebp+NTFS.sectors_per_cluster] |
1199 | imul eax, [ebp+NTFS.sectors_per_cluster] |
1200 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1200 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1201 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 ; $INDEX_ALLOCATION |
1201 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 ; $INDEX_ALLOCATION |
1202 | mov [ebp+NTFS.ntfs_cur_size], edx |
1202 | mov [ebp+NTFS.ntfs_cur_size], edx |
1203 | mov eax, [ebp+NTFS.cur_index_buf] |
1203 | mov eax, [ebp+NTFS.cur_index_buf] |
1204 | mov esi, eax |
1204 | mov esi, eax |
1205 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1205 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1206 | push edx |
1206 | push edx |
1207 | call ntfs_read_attr |
1207 | call ntfs_read_attr |
1208 | pop edx |
1208 | pop edx |
1209 | mov eax, edx |
1209 | mov eax, edx |
1210 | shl eax, 9 |
1210 | shl eax, 9 |
1211 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1211 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1212 | jnz .notfound |
1212 | jnz .notfound |
1213 | cmp dword [esi], 'INDX' |
1213 | cmp dword [esi], 'INDX' |
1214 | jnz .notfound |
1214 | jnz .notfound |
1215 | mov ebx, esi |
1215 | mov ebx, esi |
1216 | call ntfs_restore_usa |
1216 | call ntfs_restore_usa |
1217 | jc .notfound |
1217 | jc .notfound |
1218 | add esi, 0x18 |
1218 | add esi, 0x18 |
1219 | jmp .scanloop |
1219 | jmp .scanloop |
1220 | .notfound: |
1220 | .notfound: |
1221 | popad |
1221 | popad |
1222 | stc |
1222 | stc |
1223 | ret 4 |
1223 | ret 4 |
1224 | .found: |
1224 | .found: |
1225 | cmp byte [edi], 0 |
1225 | cmp byte [edi], 0 |
1226 | jz .done |
1226 | jz .done |
1227 | cmp byte [edi], '/' |
1227 | cmp byte [edi], '/' |
1228 | jz .next |
1228 | jz .next |
1229 | pop edi |
1229 | pop edi |
1230 | pop esi |
1230 | pop esi |
1231 | jmp .scanloopcont |
1231 | jmp .scanloopcont |
1232 | .done: |
1232 | .done: |
1233 | .next: |
1233 | .next: |
1234 | pop esi |
1234 | pop esi |
1235 | pop esi |
1235 | pop esi |
1236 | mov eax, [esi] |
1236 | mov eax, [esi] |
1237 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
1237 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
1238 | mov [esp+1Ch], esi |
1238 | mov [esp+1Ch], esi |
1239 | mov [esp+4], edi |
1239 | mov [esp+4], edi |
1240 | popad |
1240 | popad |
1241 | inc esi |
1241 | inc esi |
1242 | cmp byte [esi-1], 0 |
1242 | cmp byte [esi-1], 0 |
1243 | jnz .doit2 |
1243 | jnz .doit2 |
1244 | cmp dword [esp+4], 0 |
1244 | cmp dword [esp+4], 0 |
1245 | jz @f |
1245 | jz @f |
1246 | mov esi, [esp+4] |
1246 | mov esi, [esp+4] |
1247 | mov dword [esp+4], 0 |
1247 | mov dword [esp+4], 0 |
1248 | jmp .doit2 |
1248 | jmp .doit2 |
1249 | @@: |
1249 | @@: |
1250 | ret 4 |
1250 | ret 4 |
1251 | 1251 | ||
1252 | ;---------------------------------------------------------------- |
1252 | ;---------------------------------------------------------------- |
1253 | ; ntfs_Read - NTFS implementation of reading a file |
1253 | ; ntfs_Read - NTFS implementation of reading a file |
1254 | ; in: ebp = pointer to NTFS structure |
1254 | ; in: ebp = pointer to NTFS structure |
1255 | ; in: esi+[esp+4] = name |
1255 | ; in: esi+[esp+4] = name |
1256 | ; in: ebx = pointer to parameters from sysfunc 70 |
1256 | ; in: ebx = pointer to parameters from sysfunc 70 |
1257 | ; out: eax, ebx = return values for sysfunc 70 |
1257 | ; out: eax, ebx = return values for sysfunc 70 |
1258 | ;---------------------------------------------------------------- |
1258 | ;---------------------------------------------------------------- |
1259 | ntfs_Read: |
1259 | ntfs_Read: |
1260 | cmp byte [esi], 0 |
1260 | cmp byte [esi], 0 |
1261 | jnz @f |
1261 | jnz @f |
1262 | or ebx, -1 |
1262 | or ebx, -1 |
1263 | movi eax, ERROR_ACCESS_DENIED |
1263 | movi eax, ERROR_ACCESS_DENIED |
1264 | ret |
1264 | ret |
1265 | @@: |
1265 | @@: |
1266 | call ntfs_lock |
1266 | call ntfs_lock |
1267 | stdcall ntfs_find_lfn, [esp+4] |
1267 | stdcall ntfs_find_lfn, [esp+4] |
1268 | jnc .found |
1268 | jnc .found |
1269 | call ntfs_unlock |
1269 | call ntfs_unlock |
1270 | or ebx, -1 |
1270 | or ebx, -1 |
1271 | movi eax, ERROR_FILE_NOT_FOUND |
1271 | movi eax, ERROR_FILE_NOT_FOUND |
1272 | ret |
1272 | ret |
1273 | .found: |
1273 | .found: |
1274 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
1274 | mov [ebp+NTFS.ntfs_cur_attr], 0x80 ; $DATA |
1275 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1275 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1276 | and [ebp+NTFS.ntfs_cur_size], 0 |
1276 | and [ebp+NTFS.ntfs_cur_size], 0 |
1277 | call ntfs_read_attr |
1277 | call ntfs_read_attr |
1278 | jnc @f |
1278 | jnc @f |
1279 | call ntfs_unlock |
1279 | call ntfs_unlock |
1280 | or ebx, -1 |
1280 | or ebx, -1 |
1281 | movi eax, ERROR_ACCESS_DENIED |
1281 | movi eax, ERROR_ACCESS_DENIED |
1282 | ret |
1282 | ret |
1283 | @@: |
1283 | @@: |
1284 | pushad |
1284 | pushad |
1285 | and dword [esp+10h], 0 |
1285 | and dword [esp+10h], 0 |
1286 | xor eax, eax |
1286 | xor eax, eax |
1287 | cmp dword [ebx+8], 0x200 |
1287 | cmp dword [ebx+8], 0x200 |
1288 | jb @f |
1288 | jb @f |
1289 | .eof0: |
1289 | .eof0: |
1290 | popad |
1290 | popad |
1291 | xor ebx, ebx |
1291 | xor ebx, ebx |
1292 | .eof: |
1292 | .eof: |
1293 | movi eax, ERROR_END_OF_FILE |
1293 | movi eax, ERROR_END_OF_FILE |
1294 | push eax |
1294 | push eax |
1295 | call ntfs_unlock |
1295 | call ntfs_unlock |
1296 | pop eax |
1296 | pop eax |
1297 | ret |
1297 | ret |
1298 | @@: |
1298 | @@: |
1299 | mov ecx, [ebx+12] |
1299 | mov ecx, [ebx+12] |
1300 | mov edx, [ebx+16] |
1300 | mov edx, [ebx+16] |
1301 | mov eax, [ebx+4] |
1301 | mov eax, [ebx+4] |
1302 | test eax, 0x1FF |
1302 | test eax, 0x1FF |
1303 | jz .alignedstart |
1303 | jz .alignedstart |
1304 | push edx |
1304 | push edx |
1305 | mov edx, [ebx+8] |
1305 | mov edx, [ebx+8] |
1306 | shrd eax, edx, 9 |
1306 | shrd eax, edx, 9 |
1307 | pop edx |
1307 | pop edx |
1308 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1308 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1309 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1309 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1310 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1310 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1311 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1311 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1312 | call ntfs_read_attr.continue |
1312 | call ntfs_read_attr.continue |
1313 | mov eax, [ebx+4] |
1313 | mov eax, [ebx+4] |
1314 | and eax, 0x1FF |
1314 | and eax, 0x1FF |
1315 | lea esi, [ebp+NTFS.ntfs_bitmap_buf+eax] |
1315 | lea esi, [ebp+NTFS.ntfs_bitmap_buf+eax] |
1316 | sub eax, [ebp+NTFS.ntfs_cur_read] |
1316 | sub eax, [ebp+NTFS.ntfs_cur_read] |
1317 | jae .eof0 |
1317 | jae .eof0 |
1318 | neg eax |
1318 | neg eax |
1319 | push ecx |
1319 | push ecx |
1320 | cmp ecx, eax |
1320 | cmp ecx, eax |
1321 | jb @f |
1321 | jb @f |
1322 | mov ecx, eax |
1322 | mov ecx, eax |
1323 | @@: |
1323 | @@: |
1324 | mov [esp+10h+4], ecx |
1324 | mov [esp+10h+4], ecx |
1325 | mov edi, edx |
1325 | mov edi, edx |
1326 | rep movsb |
1326 | rep movsb |
1327 | mov edx, edi |
1327 | mov edx, edi |
1328 | pop ecx |
1328 | pop ecx |
1329 | sub ecx, [esp+10h] |
1329 | sub ecx, [esp+10h] |
1330 | jnz @f |
1330 | jnz @f |
1331 | .retok: |
1331 | .retok: |
1332 | popad |
1332 | popad |
1333 | call ntfs_unlock |
1333 | call ntfs_unlock |
1334 | xor eax, eax |
1334 | xor eax, eax |
1335 | ret |
1335 | ret |
1336 | @@: |
1336 | @@: |
1337 | cmp [ebp+NTFS.ntfs_cur_read], 0x200 |
1337 | cmp [ebp+NTFS.ntfs_cur_read], 0x200 |
1338 | jz .alignedstart |
1338 | jz .alignedstart |
1339 | .eof_ebx: |
1339 | .eof_ebx: |
1340 | popad |
1340 | popad |
1341 | jmp .eof |
1341 | jmp .eof |
1342 | .alignedstart: |
1342 | .alignedstart: |
1343 | mov eax, [ebx+4] |
1343 | mov eax, [ebx+4] |
1344 | push edx |
1344 | push edx |
1345 | mov edx, [ebx+8] |
1345 | mov edx, [ebx+8] |
1346 | add eax, 511 |
1346 | add eax, 511 |
1347 | adc edx, 0 |
1347 | adc edx, 0 |
1348 | shrd eax, edx, 9 |
1348 | shrd eax, edx, 9 |
1349 | pop edx |
1349 | pop edx |
1350 | .zero1: |
1350 | .zero1: |
1351 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1351 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1352 | mov [ebp+NTFS.ntfs_cur_buf], edx |
1352 | mov [ebp+NTFS.ntfs_cur_buf], edx |
1353 | mov eax, ecx |
1353 | mov eax, ecx |
1354 | shr eax, 9 |
1354 | shr eax, 9 |
1355 | mov [ebp+NTFS.ntfs_cur_size], eax |
1355 | mov [ebp+NTFS.ntfs_cur_size], eax |
1356 | add eax, [ebp+NTFS.ntfs_cur_offs] |
1356 | add eax, [ebp+NTFS.ntfs_cur_offs] |
1357 | push eax |
1357 | push eax |
1358 | call ntfs_read_attr.continue |
1358 | call ntfs_read_attr.continue |
1359 | pop [ebp+NTFS.ntfs_cur_offs] |
1359 | pop [ebp+NTFS.ntfs_cur_offs] |
1360 | mov eax, [ebp+NTFS.ntfs_cur_read] |
1360 | mov eax, [ebp+NTFS.ntfs_cur_read] |
1361 | add [esp+10h], eax |
1361 | add [esp+10h], eax |
1362 | mov eax, ecx |
1362 | mov eax, ecx |
1363 | and eax, not 0x1FF |
1363 | and eax, not 0x1FF |
1364 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1364 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1365 | jnz .eof_ebx |
1365 | jnz .eof_ebx |
1366 | and ecx, 0x1FF |
1366 | and ecx, 0x1FF |
1367 | jz .retok |
1367 | jz .retok |
1368 | add edx, [ebp+NTFS.ntfs_cur_read] |
1368 | add edx, [ebp+NTFS.ntfs_cur_read] |
1369 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1369 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1370 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1370 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1371 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1371 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1372 | call ntfs_read_attr.continue |
1372 | call ntfs_read_attr.continue |
1373 | cmp [ebp+NTFS.ntfs_cur_read], ecx |
1373 | cmp [ebp+NTFS.ntfs_cur_read], ecx |
1374 | jb @f |
1374 | jb @f |
1375 | mov [ebp+NTFS.ntfs_cur_read], ecx |
1375 | mov [ebp+NTFS.ntfs_cur_read], ecx |
1376 | @@: |
1376 | @@: |
1377 | xchg ecx, [ebp+NTFS.ntfs_cur_read] |
1377 | xchg ecx, [ebp+NTFS.ntfs_cur_read] |
1378 | push ecx |
1378 | push ecx |
1379 | mov edi, edx |
1379 | mov edi, edx |
1380 | lea esi, [ebp+NTFS.ntfs_bitmap_buf] |
1380 | lea esi, [ebp+NTFS.ntfs_bitmap_buf] |
1381 | add [esp+10h+4], ecx |
1381 | add [esp+10h+4], ecx |
1382 | rep movsb |
1382 | rep movsb |
1383 | pop ecx |
1383 | pop ecx |
1384 | xor eax, eax |
1384 | xor eax, eax |
1385 | cmp ecx, [ebp+NTFS.ntfs_cur_read] |
1385 | cmp ecx, [ebp+NTFS.ntfs_cur_read] |
1386 | jz @f |
1386 | jz @f |
1387 | mov al, ERROR_END_OF_FILE |
1387 | mov al, ERROR_END_OF_FILE |
1388 | @@: |
1388 | @@: |
1389 | mov [esp+1Ch], eax |
1389 | mov [esp+1Ch], eax |
1390 | call ntfs_unlock |
1390 | call ntfs_unlock |
1391 | popad |
1391 | popad |
1392 | ret |
1392 | ret |
1393 | 1393 | ||
1394 | ;---------------------------------------------------------------- |
1394 | ;---------------------------------------------------------------- |
1395 | ; ntfs_ReadFolder - NTFS implementation of reading a folder |
1395 | ; ntfs_ReadFolder - NTFS implementation of reading a folder |
1396 | ; in: ebp = pointer to NTFS structure |
1396 | ; in: ebp = pointer to NTFS structure |
1397 | ; in: esi+[esp+4] = name |
1397 | ; in: esi+[esp+4] = name |
1398 | ; in: ebx = pointer to parameters from sysfunc 70 |
1398 | ; in: ebx = pointer to parameters from sysfunc 70 |
1399 | ; out: eax, ebx = return values for sysfunc 70 |
1399 | ; out: eax, ebx = return values for sysfunc 70 |
1400 | ;---------------------------------------------------------------- |
1400 | ;---------------------------------------------------------------- |
1401 | ntfs_ReadFolder: |
1401 | ntfs_ReadFolder: |
1402 | call ntfs_lock |
1402 | call ntfs_lock |
1403 | mov eax, 5 ; root cluster |
1403 | mov eax, 5 ; root cluster |
1404 | cmp byte [esi], 0 |
1404 | cmp byte [esi], 0 |
1405 | jz .doit |
1405 | jz .doit |
1406 | stdcall ntfs_find_lfn, [esp+4] |
1406 | stdcall ntfs_find_lfn, [esp+4] |
1407 | jnc .doit2 |
1407 | jnc .doit2 |
1408 | .notfound: |
1408 | .notfound: |
1409 | or ebx, -1 |
1409 | or ebx, -1 |
1410 | push ERROR_FILE_NOT_FOUND |
1410 | push ERROR_FILE_NOT_FOUND |
1411 | .pop_ret: |
1411 | .pop_ret: |
1412 | call ntfs_unlock |
1412 | call ntfs_unlock |
1413 | pop eax |
1413 | pop eax |
1414 | ret |
1414 | ret |
1415 | .doit: |
1415 | .doit: |
1416 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
1416 | mov [ebp+NTFS.ntfs_cur_iRecord], eax |
1417 | .doit2: |
1417 | .doit2: |
1418 | mov [ebp+NTFS.ntfs_cur_attr], 0x10 ; $STANDARD_INFORMATION |
1418 | mov [ebp+NTFS.ntfs_cur_attr], 0x10 ; $STANDARD_INFORMATION |
1419 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1419 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1420 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1420 | mov [ebp+NTFS.ntfs_cur_size], 1 |
1421 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1421 | lea eax, [ebp+NTFS.ntfs_bitmap_buf] |
1422 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1422 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1423 | call ntfs_read_attr |
1423 | call ntfs_read_attr |
1424 | jc .notfound |
1424 | jc .notfound |
1425 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1425 | mov [ebp+NTFS.ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1426 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1426 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1427 | mov eax, [ebp+NTFS.cur_index_size] |
1427 | mov eax, [ebp+NTFS.cur_index_size] |
1428 | mov [ebp+NTFS.ntfs_cur_size], eax |
1428 | mov [ebp+NTFS.ntfs_cur_size], eax |
1429 | mov eax, [ebp+NTFS.cur_index_buf] |
1429 | mov eax, [ebp+NTFS.cur_index_buf] |
1430 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1430 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1431 | call ntfs_read_attr |
1431 | call ntfs_read_attr |
1432 | jnc .ok |
1432 | jnc .ok |
1433 | test eax, eax |
1433 | test eax, eax |
1434 | jz .notfound |
1434 | jz .notfound |
1435 | or ebx, -1 |
1435 | or ebx, -1 |
1436 | push 11 |
1436 | push 11 |
1437 | jmp .pop_ret |
1437 | jmp .pop_ret |
1438 | .ok: |
1438 | .ok: |
1439 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
1439 | cmp [ebp+NTFS.ntfs_cur_read], 0x20 |
1440 | jae @f |
1440 | jae @f |
1441 | or ebx, -1 |
1441 | or ebx, -1 |
1442 | .fserr: |
1442 | .fserr: |
1443 | push ERROR_FAT_TABLE |
1443 | push ERROR_FAT_TABLE |
1444 | jmp .pop_ret |
1444 | jmp .pop_ret |
1445 | @@: |
1445 | @@: |
1446 | pushad |
1446 | pushad |
1447 | mov esi, [ebp+NTFS.cur_index_buf] |
1447 | mov esi, [ebp+NTFS.cur_index_buf] |
1448 | mov eax, [esi+14h] |
1448 | mov eax, [esi+14h] |
1449 | add eax, 10h |
1449 | add eax, 10h |
1450 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1450 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1451 | jae .readok1 |
1451 | jae .readok1 |
1452 | add eax, 1FFh |
1452 | add eax, 1FFh |
1453 | shr eax, 9 |
1453 | shr eax, 9 |
1454 | cmp eax, [ebp+NTFS.cur_index_size] |
1454 | cmp eax, [ebp+NTFS.cur_index_size] |
1455 | ja @f |
1455 | ja @f |
1456 | popad |
1456 | popad |
1457 | jmp .fserr |
1457 | jmp .fserr |
1458 | @@: |
1458 | @@: |
1459 | ; reallocate |
1459 | ; reallocate |
1460 | push eax |
1460 | push eax |
1461 | push [ebp+NTFS.cur_index_buf] |
1461 | push [ebp+NTFS.cur_index_buf] |
1462 | call kernel_free |
1462 | call kernel_free |
1463 | pop eax |
1463 | pop eax |
1464 | mov [ebp+NTFS.cur_index_size], eax |
1464 | mov [ebp+NTFS.cur_index_size], eax |
1465 | push eax |
1465 | push eax |
1466 | call kernel_alloc |
1466 | call kernel_alloc |
1467 | test eax, eax |
1467 | test eax, eax |
1468 | jnz @f |
1468 | jnz @f |
1469 | and [ebp+NTFS.cur_index_size], 0 |
1469 | and [ebp+NTFS.cur_index_size], 0 |
1470 | and [ebp+NTFS.cur_index_buf], 0 |
1470 | and [ebp+NTFS.cur_index_buf], 0 |
1471 | .nomem: |
1471 | .nomem: |
1472 | call ntfs_unlock |
1472 | call ntfs_unlock |
1473 | popad |
1473 | popad |
1474 | or ebx, -1 |
1474 | or ebx, -1 |
1475 | movi eax, 12 |
1475 | movi eax, 12 |
1476 | ret |
1476 | ret |
1477 | @@: |
1477 | @@: |
1478 | mov [ebp+NTFS.cur_index_buf], eax |
1478 | mov [ebp+NTFS.cur_index_buf], eax |
1479 | popad |
1479 | popad |
1480 | jmp .doit2 |
1480 | jmp .doit2 |
1481 | .readok1: |
1481 | .readok1: |
1482 | mov edx, [esi+8] ; subnode_size |
1482 | mov edx, [esi+8] ; subnode_size |
1483 | shr edx, 9 |
1483 | shr edx, 9 |
1484 | mov [ebp+NTFS.cur_subnode_size], edx |
1484 | mov [ebp+NTFS.cur_subnode_size], edx |
1485 | cmp edx, [ebp+NTFS.cur_index_size] |
1485 | cmp edx, [ebp+NTFS.cur_index_size] |
1486 | jbe .ok2 |
1486 | jbe .ok2 |
1487 | push esi edx |
1487 | push esi edx |
1488 | push edx |
1488 | push edx |
1489 | call kernel_alloc |
1489 | call kernel_alloc |
1490 | pop edx esi |
1490 | pop edx esi |
1491 | test eax, eax |
1491 | test eax, eax |
1492 | jz .nomem |
1492 | jz .nomem |
1493 | mov edi, eax |
1493 | mov edi, eax |
1494 | mov ecx, [ebp+NTFS.cur_index_size] |
1494 | mov ecx, [ebp+NTFS.cur_index_size] |
1495 | shl ecx, 9-2 |
1495 | shl ecx, 9-2 |
1496 | rep movsd |
1496 | rep movsd |
1497 | mov esi, eax |
1497 | mov esi, eax |
1498 | mov [ebp+NTFS.cur_index_size], edx |
1498 | mov [ebp+NTFS.cur_index_size], edx |
1499 | push [ebp+NTFS.cur_index_buf] |
1499 | push [ebp+NTFS.cur_index_buf] |
1500 | call kernel_free |
1500 | call kernel_free |
1501 | mov [ebp+NTFS.cur_index_buf], esi |
1501 | mov [ebp+NTFS.cur_index_buf], esi |
1502 | .ok2: |
1502 | .ok2: |
1503 | add esi, 10h |
1503 | add esi, 10h |
1504 | mov edx, [ebx+16] |
1504 | mov edx, [ebx+16] |
1505 | push dword [ebx+8] ; read ANSI/UNICODE name |
1505 | push dword [ebx+8] ; read ANSI/UNICODE name |
1506 | ; init header |
1506 | ; init header |
1507 | mov edi, edx |
1507 | mov edi, edx |
1508 | mov ecx, 32/4 |
1508 | mov ecx, 32/4 |
1509 | xor eax, eax |
1509 | xor eax, eax |
1510 | rep stosd |
1510 | rep stosd |
1511 | mov byte [edx], 1 ; version |
1511 | mov byte [edx], 1 ; version |
1512 | mov ecx, [ebx+12] |
1512 | mov ecx, [ebx+12] |
1513 | mov ebx, [ebx+4] |
1513 | mov ebx, [ebx+4] |
1514 | push edx |
1514 | push edx |
1515 | mov edx, esp |
1515 | mov edx, esp |
1516 | ; edi -> BDFE, esi -> current index data, ebx = first wanted block, |
1516 | ; edi -> BDFE, esi -> current index data, ebx = first wanted block, |
1517 | ; ecx = number of blocks to read |
1517 | ; ecx = number of blocks to read |
1518 | ; edx -> parameters block: dd |
1518 | ; edx -> parameters block: dd |
1519 | cmp [ebp+NTFS.ntfs_cur_iRecord], 5 |
1519 | cmp [ebp+NTFS.ntfs_cur_iRecord], 5 |
1520 | jz .skip_specials |
1520 | jz .skip_specials |
1521 | ; dot and dotdot entries |
1521 | ; dot and dotdot entries |
1522 | push esi |
1522 | push esi |
1523 | xor esi, esi |
1523 | xor esi, esi |
1524 | call .add_special_entry |
1524 | call .add_special_entry |
1525 | inc esi |
1525 | inc esi |
1526 | call .add_special_entry |
1526 | call .add_special_entry |
1527 | pop esi |
1527 | pop esi |
1528 | .skip_specials: |
1528 | .skip_specials: |
1529 | ; at first, dump index root |
1529 | ; at first, dump index root |
1530 | add esi, [esi] |
1530 | add esi, [esi] |
1531 | .dump_root: |
1531 | .dump_root: |
1532 | test byte [esi+0Ch], 2 |
1532 | test byte [esi+0Ch], 2 |
1533 | jnz .dump_root_done |
1533 | jnz .dump_root_done |
1534 | call .add_entry |
1534 | call .add_entry |
1535 | movzx eax, word [esi+8] |
1535 | movzx eax, word [esi+8] |
1536 | add esi, eax |
1536 | add esi, eax |
1537 | jmp .dump_root |
1537 | jmp .dump_root |
1538 | .dump_root_done: |
1538 | .dump_root_done: |
1539 | ; now dump all subnodes |
1539 | ; now dump all subnodes |
1540 | push ecx edi |
1540 | push ecx edi |
1541 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1541 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1542 | mov [ebp+NTFS.ntfs_cur_buf], edi |
1542 | mov [ebp+NTFS.ntfs_cur_buf], edi |
1543 | mov ecx, 0x400/4 |
1543 | mov ecx, 0x400/4 |
1544 | xor eax, eax |
1544 | xor eax, eax |
1545 | rep stosd |
1545 | rep stosd |
1546 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 ; $BITMAP |
1546 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 ; $BITMAP |
1547 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1547 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1548 | mov [ebp+NTFS.ntfs_cur_size], 2 |
1548 | mov [ebp+NTFS.ntfs_cur_size], 2 |
1549 | call ntfs_read_attr |
1549 | call ntfs_read_attr |
1550 | pop edi ecx |
1550 | pop edi ecx |
1551 | push 0 ; save offset in $BITMAP attribute |
1551 | push 0 ; save offset in $BITMAP attribute |
1552 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1552 | and [ebp+NTFS.ntfs_cur_offs], 0 |
1553 | .dumploop: |
1553 | .dumploop: |
1554 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 |
1554 | mov [ebp+NTFS.ntfs_cur_attr], 0xA0 |
1555 | mov eax, [ebp+NTFS.cur_subnode_size] |
1555 | mov eax, [ebp+NTFS.cur_subnode_size] |
1556 | mov [ebp+NTFS.ntfs_cur_size], eax |
1556 | mov [ebp+NTFS.ntfs_cur_size], eax |
1557 | mov eax, [ebp+NTFS.cur_index_buf] |
1557 | mov eax, [ebp+NTFS.cur_index_buf] |
1558 | mov esi, eax |
1558 | mov esi, eax |
1559 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1559 | mov [ebp+NTFS.ntfs_cur_buf], eax |
1560 | push [ebp+NTFS.ntfs_cur_offs] |
1560 | push [ebp+NTFS.ntfs_cur_offs] |
1561 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
1561 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
1562 | imul eax, [ebp+NTFS.cur_subnode_size] |
1562 | imul eax, [ebp+NTFS.cur_subnode_size] |
1563 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1563 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1564 | call ntfs_read_attr |
1564 | call ntfs_read_attr |
1565 | pop [ebp+NTFS.ntfs_cur_offs] |
1565 | pop [ebp+NTFS.ntfs_cur_offs] |
1566 | mov eax, [ebp+NTFS.cur_subnode_size] |
1566 | mov eax, [ebp+NTFS.cur_subnode_size] |
1567 | shl eax, 9 |
1567 | shl eax, 9 |
1568 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1568 | cmp [ebp+NTFS.ntfs_cur_read], eax |
1569 | jnz .done |
1569 | jnz .done |
1570 | push eax |
1570 | push eax |
1571 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
1571 | mov eax, [ebp+NTFS.ntfs_cur_offs] |
1572 | and eax, 0x400*8-1 |
1572 | and eax, 0x400*8-1 |
1573 | bt dword [ebp+NTFS.ntfs_bitmap_buf], eax |
1573 | bt dword [ebp+NTFS.ntfs_bitmap_buf], eax |
1574 | pop eax |
1574 | pop eax |
1575 | jnc .dump_subnode_done |
1575 | jnc .dump_subnode_done |
1576 | cmp dword [esi], 'INDX' |
1576 | cmp dword [esi], 'INDX' |
1577 | jnz .dump_subnode_done |
1577 | jnz .dump_subnode_done |
1578 | push ebx |
1578 | push ebx |
1579 | mov ebx, esi |
1579 | mov ebx, esi |
1580 | call ntfs_restore_usa |
1580 | call ntfs_restore_usa |
1581 | pop ebx |
1581 | pop ebx |
1582 | jc .dump_subnode_done |
1582 | jc .dump_subnode_done |
1583 | add esi, 0x18 |
1583 | add esi, 0x18 |
1584 | add esi, [esi] |
1584 | add esi, [esi] |
1585 | .dump_subnode: |
1585 | .dump_subnode: |
1586 | test byte [esi+0Ch], 2 |
1586 | test byte [esi+0Ch], 2 |
1587 | jnz .dump_subnode_done |
1587 | jnz .dump_subnode_done |
1588 | call .add_entry |
1588 | call .add_entry |
1589 | movzx eax, word [esi+8] |
1589 | movzx eax, word [esi+8] |
1590 | add esi, eax |
1590 | add esi, eax |
1591 | jmp .dump_subnode |
1591 | jmp .dump_subnode |
1592 | .dump_subnode_done: |
1592 | .dump_subnode_done: |
1593 | inc [ebp+NTFS.ntfs_cur_offs] |
1593 | inc [ebp+NTFS.ntfs_cur_offs] |
1594 | test [ebp+NTFS.ntfs_cur_offs], 0x400*8-1 |
1594 | test [ebp+NTFS.ntfs_cur_offs], 0x400*8-1 |
1595 | jnz .dumploop |
1595 | jnz .dumploop |
1596 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 |
1596 | mov [ebp+NTFS.ntfs_cur_attr], 0xB0 |
1597 | push ecx edi |
1597 | push ecx edi |
1598 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1598 | lea edi, [ebp+NTFS.ntfs_bitmap_buf] |
1599 | mov [ebp+NTFS.ntfs_cur_buf], edi |
1599 | mov [ebp+NTFS.ntfs_cur_buf], edi |
1600 | mov ecx, 0x400/4 |
1600 | mov ecx, 0x400/4 |
1601 | xor eax, eax |
1601 | xor eax, eax |
1602 | rep stosd |
1602 | rep stosd |
1603 | pop edi ecx |
1603 | pop edi ecx |
1604 | pop eax |
1604 | pop eax |
1605 | push [ebp+NTFS.ntfs_cur_offs] |
1605 | push [ebp+NTFS.ntfs_cur_offs] |
1606 | inc eax |
1606 | inc eax |
1607 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1607 | mov [ebp+NTFS.ntfs_cur_offs], eax |
1608 | mov [ebp+NTFS.ntfs_cur_size], 2 |
1608 | mov [ebp+NTFS.ntfs_cur_size], 2 |
1609 | push eax |
1609 | push eax |
1610 | call ntfs_read_attr |
1610 | call ntfs_read_attr |
1611 | pop eax |
1611 | pop eax |
1612 | pop [ebp+NTFS.ntfs_cur_offs] |
1612 | pop [ebp+NTFS.ntfs_cur_offs] |
1613 | push eax |
1613 | push eax |
1614 | jmp .dumploop |
1614 | jmp .dumploop |
1615 | .done: |
1615 | .done: |
1616 | pop eax |
1616 | pop eax |
1617 | pop edx |
1617 | pop edx |
1618 | mov ebx, [edx+4] |
1618 | mov ebx, [edx+4] |
1619 | pop edx |
1619 | pop edx |
1620 | xor eax, eax |
1620 | xor eax, eax |
1621 | dec ecx |
1621 | dec ecx |
1622 | js @f |
1622 | js @f |
1623 | mov al, ERROR_END_OF_FILE |
1623 | mov al, ERROR_END_OF_FILE |
1624 | @@: |
1624 | @@: |
1625 | mov [esp+1Ch], eax |
1625 | mov [esp+1Ch], eax |
1626 | mov [esp+10h], ebx |
1626 | mov [esp+10h], ebx |
1627 | call ntfs_unlock |
1627 | call ntfs_unlock |
1628 | popad |
1628 | popad |
1629 | ret |
1629 | ret |
1630 | 1630 | ||
1631 | .add_special_entry: |
1631 | .add_special_entry: |
1632 | mov eax, [edx] |
1632 | mov eax, [edx] |
1633 | inc dword [eax+8] ; new file found |
1633 | inc dword [eax+8] ; new file found |
1634 | dec ebx |
1634 | dec ebx |
1635 | jns .ret |
1635 | jns .ret |
1636 | dec ecx |
1636 | dec ecx |
1637 | js .ret |
1637 | js .ret |
1638 | inc dword [eax+4] ; new file block copied |
1638 | inc dword [eax+4] ; new file block copied |
1639 | mov eax, [edx+4] |
1639 | mov eax, [edx+4] |
1640 | mov [edi+4], eax |
1640 | mov [edi+4], eax |
1641 | ; mov eax, dword [ntfs_bitmap_buf+0x20] |
1641 | ; mov eax, dword [ntfs_bitmap_buf+0x20] |
1642 | ; or al, 0x10 |
1642 | ; or al, 0x10 |
1643 | mov eax, 0x10 |
1643 | mov eax, 0x10 |
1644 | stosd |
1644 | stosd |
1645 | scasd |
1645 | scasd |
1646 | push edx |
1646 | push edx |
1647 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf] |
1647 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf] |
1648 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+4] |
1648 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+4] |
1649 | call ntfs_datetime_to_bdfe |
1649 | call ntfs_datetime_to_bdfe |
1650 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+0x18] |
1650 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+0x18] |
1651 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0x1C] |
1651 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0x1C] |
1652 | call ntfs_datetime_to_bdfe |
1652 | call ntfs_datetime_to_bdfe |
1653 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+8] |
1653 | mov eax, dword [ebp+NTFS.ntfs_bitmap_buf+8] |
1654 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0xC] |
1654 | mov edx, dword [ebp+NTFS.ntfs_bitmap_buf+0xC] |
1655 | call ntfs_datetime_to_bdfe |
1655 | call ntfs_datetime_to_bdfe |
1656 | pop edx |
1656 | pop edx |
1657 | xor eax, eax |
1657 | xor eax, eax |
1658 | stosd |
1658 | stosd |
1659 | stosd |
1659 | stosd |
1660 | mov al, '.' |
1660 | mov al, '.' |
1661 | push edi ecx |
1661 | push edi ecx |
1662 | lea ecx, [esi+1] |
1662 | lea ecx, [esi+1] |
1663 | test byte [edi-0x24], 1 |
1663 | test byte [edi-0x24], 1 |
1664 | jz @f |
1664 | jz @f |
1665 | rep stosw |
1665 | rep stosw |
1666 | pop ecx |
1666 | pop ecx |
1667 | xor eax, eax |
1667 | xor eax, eax |
1668 | stosw |
1668 | stosw |
1669 | pop edi |
1669 | pop edi |
1670 | add edi, 520 |
1670 | add edi, 520 |
1671 | ret |
1671 | ret |
1672 | @@: |
1672 | @@: |
1673 | rep stosb |
1673 | rep stosb |
1674 | pop ecx |
1674 | pop ecx |
1675 | xor eax, eax |
1675 | xor eax, eax |
1676 | stosb |
1676 | stosb |
1677 | pop edi |
1677 | pop edi |
1678 | add edi, 264 |
1678 | add edi, 264 |
1679 | .ret: |
1679 | .ret: |
1680 | ret |
1680 | ret |
1681 | 1681 | ||
1682 | .add_entry: |
1682 | .add_entry: |
1683 | ; do not return DOS 8.3 names |
1683 | ; do not return DOS 8.3 names |
1684 | cmp byte [esi+0x51], 2 |
1684 | cmp byte [esi+0x51], 2 |
1685 | jz .ret |
1685 | jz .ret |
1686 | ; do not return system files |
1686 | ; do not return system files |
1687 | ; ... note that there will be no bad effects if system files also were reported ... |
1687 | ; ... note that there will be no bad effects if system files also were reported ... |
1688 | cmp dword [esi], 0x10 |
1688 | cmp dword [esi], 0x10 |
1689 | jb .ret |
1689 | jb .ret |
1690 | mov eax, [edx] |
1690 | mov eax, [edx] |
1691 | inc dword [eax+8] ; new file found |
1691 | inc dword [eax+8] ; new file found |
1692 | dec ebx |
1692 | dec ebx |
1693 | jns .ret |
1693 | jns .ret |
1694 | dec ecx |
1694 | dec ecx |
1695 | js .ret |
1695 | js .ret |
1696 | inc dword [eax+4] ; new file block copied |
1696 | inc dword [eax+4] ; new file block copied |
1697 | mov eax, [edx+4] ; flags |
1697 | mov eax, [edx+4] ; flags |
1698 | call ntfs_direntry_to_bdfe |
1698 | call ntfs_direntry_to_bdfe |
1699 | push ecx esi edi |
1699 | push ecx esi edi |
1700 | movzx ecx, byte [esi+0x50] |
1700 | movzx ecx, byte [esi+0x50] |
1701 | add esi, 0x52 |
1701 | add esi, 0x52 |
1702 | test byte [edi-0x24], 1 |
1702 | test byte [edi-0x24], 1 |
1703 | jz .ansi |
1703 | jz .ansi |
1704 | shr ecx, 1 |
1704 | shr ecx, 1 |
1705 | rep movsd |
1705 | rep movsd |
1706 | adc ecx, ecx |
1706 | adc ecx, ecx |
1707 | rep movsw |
1707 | rep movsw |
1708 | and word [edi], 0 |
1708 | and word [edi], 0 |
1709 | pop edi |
1709 | pop edi |
1710 | add edi, 520 |
1710 | add edi, 520 |
1711 | pop esi ecx |
1711 | pop esi ecx |
1712 | ret |
1712 | ret |
1713 | .ansi: |
1713 | .ansi: |
1714 | jecxz .skip |
1714 | jecxz .skip |
1715 | @@: |
1715 | @@: |
1716 | lodsw |
1716 | lodsw |
1717 | call uni2ansi_char |
1717 | call uni2ansi_char |
1718 | stosb |
1718 | stosb |
1719 | loop @b |
1719 | loop @b |
1720 | .skip: |
1720 | .skip: |
1721 | xor al, al |
1721 | xor al, al |
1722 | stosb |
1722 | stosb |
1723 | pop edi |
1723 | pop edi |
1724 | add edi, 264 |
1724 | add edi, 264 |
1725 | pop esi ecx |
1725 | pop esi ecx |
1726 | ret |
1726 | ret |
1727 | 1727 | ||
1728 | ntfs_direntry_to_bdfe: |
1728 | ntfs_direntry_to_bdfe: |
1729 | mov [edi+4], eax ; ANSI/UNICODE name |
1729 | mov [edi+4], eax ; ANSI/UNICODE name |
1730 | mov eax, [esi+48h] |
1730 | mov eax, [esi+48h] |
1731 | test eax, 0x10000000 |
1731 | test eax, 0x10000000 |
1732 | jz @f |
1732 | jz @f |
1733 | and eax, not 0x10000000 |
1733 | and eax, not 0x10000000 |
1734 | or al, 0x10 |
1734 | or al, 0x10 |
1735 | @@: |
1735 | @@: |
1736 | stosd |
1736 | stosd |
1737 | scasd |
1737 | scasd |
1738 | push edx |
1738 | push edx |
1739 | mov eax, [esi+0x18] |
1739 | mov eax, [esi+0x18] |
1740 | mov edx, [esi+0x1C] |
1740 | mov edx, [esi+0x1C] |
1741 | call ntfs_datetime_to_bdfe |
1741 | call ntfs_datetime_to_bdfe |
1742 | mov eax, [esi+0x30] |
1742 | mov eax, [esi+0x30] |
1743 | mov edx, [esi+0x34] |
1743 | mov edx, [esi+0x34] |
1744 | call ntfs_datetime_to_bdfe |
1744 | call ntfs_datetime_to_bdfe |
1745 | mov eax, [esi+0x20] |
1745 | mov eax, [esi+0x20] |
1746 | mov edx, [esi+0x24] |
1746 | mov edx, [esi+0x24] |
1747 | call ntfs_datetime_to_bdfe |
1747 | call ntfs_datetime_to_bdfe |
1748 | pop edx |
1748 | pop edx |
1749 | mov eax, [esi+0x40] |
1749 | mov eax, [esi+0x40] |
1750 | stosd |
1750 | stosd |
1751 | mov eax, [esi+0x44] |
1751 | mov eax, [esi+0x44] |
1752 | stosd |
1752 | stosd |
1753 | ret |
1753 | ret |
1754 | 1754 | ||
1755 | iglobal |
1755 | iglobal |
1756 | _24 dd 24 |
1756 | _24 dd 24 |
1757 | _60 dd 60 |
1757 | _60 dd 60 |
1758 | _10000000 dd 10000000 |
1758 | _10000000 dd 10000000 |
1759 | days400year dd 365*400+100-4+1 |
1759 | days400year dd 365*400+100-4+1 |
1760 | days100year dd 365*100+25-1 |
1760 | days100year dd 365*100+25-1 |
1761 | days4year dd 365*4+1 |
1761 | days4year dd 365*4+1 |
1762 | days1year dd 365 |
1762 | days1year dd 365 |
1763 | months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1763 | months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1764 | months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1764 | months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1765 | _400 dd 400 |
1765 | _400 dd 400 |
1766 | _100 dd 100 |
1766 | _100 dd 100 |
1767 | endg |
1767 | endg |
1768 | 1768 | ||
1769 | ntfs_datetime_to_bdfe: |
1769 | ntfs_datetime_to_bdfe: |
1770 | ; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC |
1770 | ; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC |
1771 | push eax |
1771 | push eax |
1772 | mov eax, edx |
1772 | mov eax, edx |
1773 | xor edx, edx |
1773 | xor edx, edx |
1774 | div [_10000000] |
1774 | div [_10000000] |
1775 | xchg eax, [esp] |
1775 | xchg eax, [esp] |
1776 | div [_10000000] |
1776 | div [_10000000] |
1777 | pop edx |
1777 | pop edx |
1778 | .sec: |
1778 | .sec: |
1779 | ; edx:eax = number of seconds since January 1, 1601 |
1779 | ; edx:eax = number of seconds since January 1, 1601 |
1780 | push eax |
1780 | push eax |
1781 | mov eax, edx |
1781 | mov eax, edx |
1782 | xor edx, edx |
1782 | xor edx, edx |
1783 | div [_60] |
1783 | div [_60] |
1784 | xchg eax, [esp] |
1784 | xchg eax, [esp] |
1785 | div [_60] |
1785 | div [_60] |
1786 | mov [edi], dl |
1786 | mov [edi], dl |
1787 | pop edx |
1787 | pop edx |
1788 | ; edx:eax = number of minutes |
1788 | ; edx:eax = number of minutes |
1789 | div [_60] |
1789 | div [_60] |
1790 | mov [edi+1], dl |
1790 | mov [edi+1], dl |
1791 | ; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32) |
1791 | ; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32) |
1792 | xor edx, edx |
1792 | xor edx, edx |
1793 | div [_24] |
1793 | div [_24] |
1794 | mov [edi+2], dl |
1794 | mov [edi+2], dl |
1795 | mov [edi+3], byte 0 |
1795 | mov [edi+3], byte 0 |
1796 | ; eax = number of days since January 1, 1601 |
1796 | ; eax = number of days since January 1, 1601 |
1797 | xor edx, edx |
1797 | xor edx, edx |
1798 | div [days400year] |
1798 | div [days400year] |
1799 | imul eax, 400 |
1799 | imul eax, 400 |
1800 | add eax, 1601 |
1800 | add eax, 1601 |
1801 | mov [edi+6], ax |
1801 | mov [edi+6], ax |
1802 | mov eax, edx |
1802 | mov eax, edx |
1803 | xor edx, edx |
1803 | xor edx, edx |
1804 | div [days100year] |
1804 | div [days100year] |
1805 | cmp al, 4 |
1805 | cmp al, 4 |
1806 | jnz @f |
1806 | jnz @f |
1807 | dec eax |
1807 | dec eax |
1808 | add edx, [days100year] |
1808 | add edx, [days100year] |
1809 | @@: |
1809 | @@: |
1810 | imul eax, 100 |
1810 | imul eax, 100 |
1811 | add [edi+6], ax |
1811 | add [edi+6], ax |
1812 | mov eax, edx |
1812 | mov eax, edx |
1813 | xor edx, edx |
1813 | xor edx, edx |
1814 | div [days4year] |
1814 | div [days4year] |
1815 | shl eax, 2 |
1815 | shl eax, 2 |
1816 | add [edi+6], ax |
1816 | add [edi+6], ax |
1817 | mov eax, edx |
1817 | mov eax, edx |
1818 | xor edx, edx |
1818 | xor edx, edx |
1819 | div [days1year] |
1819 | div [days1year] |
1820 | cmp al, 4 |
1820 | cmp al, 4 |
1821 | jnz @f |
1821 | jnz @f |
1822 | dec eax |
1822 | dec eax |
1823 | add edx, [days1year] |
1823 | add edx, [days1year] |
1824 | @@: |
1824 | @@: |
1825 | add [edi+6], ax |
1825 | add [edi+6], ax |
1826 | push esi edx |
1826 | push esi edx |
1827 | mov esi, months |
1827 | mov esi, months |
1828 | movzx eax, word [edi+6] |
1828 | movzx eax, word [edi+6] |
1829 | test al, 3 |
1829 | test al, 3 |
1830 | jnz .noleap |
1830 | jnz .noleap |
1831 | xor edx, edx |
1831 | xor edx, edx |
1832 | push eax |
1832 | push eax |
1833 | div [_400] |
1833 | div [_400] |
1834 | pop eax |
1834 | pop eax |
1835 | test edx, edx |
1835 | test edx, edx |
1836 | jz .leap |
1836 | jz .leap |
1837 | xor edx, edx |
1837 | xor edx, edx |
1838 | div [_100] |
1838 | div [_100] |
1839 | test edx, edx |
1839 | test edx, edx |
1840 | jz .noleap |
1840 | jz .noleap |
1841 | .leap: |
1841 | .leap: |
1842 | mov esi, months2 |
1842 | mov esi, months2 |
1843 | .noleap: |
1843 | .noleap: |
1844 | pop edx |
1844 | pop edx |
1845 | xor eax, eax |
1845 | xor eax, eax |
1846 | inc eax |
1846 | inc eax |
1847 | @@: |
1847 | @@: |
1848 | sub edx, [esi] |
1848 | sub edx, [esi] |
1849 | jb @f |
1849 | jb @f |
1850 | add esi, 4 |
1850 | add esi, 4 |
1851 | inc eax |
1851 | inc eax |
1852 | jmp @b |
1852 | jmp @b |
1853 | @@: |
1853 | @@: |
1854 | add edx, [esi] |
1854 | add edx, [esi] |
1855 | pop esi |
1855 | pop esi |
1856 | inc edx |
1856 | inc edx |
1857 | mov [edi+4], dl |
1857 | mov [edi+4], dl |
1858 | mov [edi+5], al |
1858 | mov [edi+5], al |
1859 | add edi, 8 |
1859 | add edi, 8 |
1860 | ret |
1860 | ret |
1861 | 1861 | ||
1862 | ;---------------------------------------------------------------- |
1862 | ;---------------------------------------------------------------- |
1863 | ; ntfs_Rewrite - NTFS implementation of creating a new file |
1863 | ; ntfs_Rewrite - NTFS implementation of creating a new file |
1864 | ; in: ebp = pointer to NTFS structure |
1864 | ; in: ebp = pointer to NTFS structure |
1865 | ; in: esi+[esp+4] = name |
1865 | ; in: esi+[esp+4] = name |
1866 | ; in: ebx = pointer to parameters from sysfunc 70 |
1866 | ; in: ebx = pointer to parameters from sysfunc 70 |
1867 | ; out: eax, ebx = return values for sysfunc 70 |
1867 | ; out: eax, ebx = return values for sysfunc 70 |
1868 | ;---------------------------------------------------------------- |
1868 | ;---------------------------------------------------------------- |
1869 | ntfs_Rewrite: |
1869 | ntfs_Rewrite: |
1870 | ntfs_CreateFolder: |
1870 | ntfs_CreateFolder: |
1871 | xor ebx, ebx |
1871 | xor ebx, ebx |
1872 | mov eax, ERROR_UNSUPPORTED_FS |
1872 | mov eax, ERROR_UNSUPPORTED_FS |
1873 | ret |
1873 | ret |
1874 | 1874 | ||
1875 | ;---------------------------------------------------------------- |
1875 | ;---------------------------------------------------------------- |
1876 | ; ntfs_Write - NTFS implementation of writing to file |
1876 | ; ntfs_Write - NTFS implementation of writing to file |
1877 | ; in: ebp = pointer to NTFS structure |
1877 | ; in: ebp = pointer to NTFS structure |
1878 | ; in: esi+[esp+4] = name |
1878 | ; in: esi+[esp+4] = name |
1879 | ; in: ebx = pointer to parameters from sysfunc 70 |
1879 | ; in: ebx = pointer to parameters from sysfunc 70 |
1880 | ; out: eax, ebx = return values for sysfunc 70 |
1880 | ; out: eax, ebx = return values for sysfunc 70 |
1881 | ;---------------------------------------------------------------- |
1881 | ;---------------------------------------------------------------- |
1882 | ntfs_Write: |
1882 | ntfs_Write: |
1883 | xor ebx, ebx |
1883 | xor ebx, ebx |
1884 | mov eax, ERROR_UNSUPPORTED_FS |
1884 | mov eax, ERROR_UNSUPPORTED_FS |
1885 | ret |
1885 | ret |
1886 | 1886 | ||
1887 | ntfs_SetFileEnd: |
1887 | ntfs_SetFileEnd: |
1888 | ntfs_SetFileInfo: |
1888 | ntfs_SetFileInfo: |
1889 | ntfs_Delete: |
1889 | ntfs_Delete: |
1890 | mov eax, ERROR_UNSUPPORTED_FS |
1890 | mov eax, ERROR_UNSUPPORTED_FS |
1891 | ret |
1891 | ret |
1892 | 1892 | ||
1893 | ;---------------------------------------------------------------- |
1893 | ;---------------------------------------------------------------- |
1894 | ; ntfs_GetFileInfo - NTFS implementation of getting file info |
1894 | ; ntfs_GetFileInfo - NTFS implementation of getting file info |
1895 | ; in: ebp = pointer to NTFS structure |
1895 | ; in: ebp = pointer to NTFS structure |
1896 | ; in: esi+[esp+4] = name |
1896 | ; in: esi+[esp+4] = name |
1897 | ; in: ebx = pointer to parameters from sysfunc 70 |
1897 | ; in: ebx = pointer to parameters from sysfunc 70 |
1898 | ; out: eax, ebx = return values for sysfunc 70 |
1898 | ; out: eax, ebx = return values for sysfunc 70 |
1899 | ;---------------------------------------------------------------- |
1899 | ;---------------------------------------------------------------- |
1900 | ntfs_GetFileInfo: |
1900 | ntfs_GetFileInfo: |
1901 | cmp byte [esi], 0 |
1901 | cmp byte [esi], 0 |
1902 | jnz @f |
1902 | jnz @f |
1903 | movi eax, 2 |
1903 | movi eax, 2 |
1904 | ret |
1904 | ret |
1905 | @@: |
1905 | @@: |
1906 | call ntfs_lock |
1906 | call ntfs_lock |
1907 | stdcall ntfs_find_lfn, [esp+4] |
1907 | stdcall ntfs_find_lfn, [esp+4] |
1908 | jnc .doit |
1908 | jnc .doit |
1909 | test eax, eax |
1909 | test eax, eax |
1910 | movi eax, ERROR_FILE_NOT_FOUND |
1910 | movi eax, ERROR_FILE_NOT_FOUND |
1911 | jz @f |
1911 | jz @f |
1912 | mov al, 11 |
1912 | mov al, 11 |
1913 | @@: |
1913 | @@: |
1914 | push eax |
1914 | push eax |
1915 | call ntfs_unlock |
1915 | call ntfs_unlock |
1916 | pop eax |
1916 | pop eax |
1917 | ret |
1917 | ret |
1918 | .doit: |
1918 | .doit: |
1919 | push esi edi |
1919 | push esi edi |
1920 | mov esi, eax |
1920 | mov esi, eax |
1921 | mov edi, [ebx+16] |
1921 | mov edi, [ebx+16] |
1922 | xor eax, eax |
1922 | xor eax, eax |
1923 | call ntfs_direntry_to_bdfe |
1923 | call ntfs_direntry_to_bdfe |
1924 | pop edi esi |
1924 | pop edi esi |
1925 | call ntfs_unlock |
1925 | call ntfs_unlock |
1926 | xor eax, eax |
1926 | xor eax, eax |
1927 | ret>=>=>=> |
1927 | ret>=>=>=> |