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1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2011. 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: 2455 $ |
8 | $Revision: 3598 $ |
9 | 9 | ||
10 | 10 | ||
11 | ntfs_test_bootsec: |
11 | ntfs_test_bootsec: |
12 | ; in: ebx->buffer, edx=size of partition |
12 | ; in: ebx->buffer, edx=size of partition |
13 | ; out: CF set <=> invalid |
13 | ; out: CF set <=> invalid |
14 | ; 1. Name=='NTFS ' |
14 | ; 1. Name=='NTFS ' |
15 | cmp dword [ebx+3], 'NTFS' |
15 | cmp dword [ebx+3], 'NTFS' |
16 | jnz .no |
16 | jnz .no |
17 | cmp dword [ebx+7], ' ' |
17 | cmp dword [ebx+7], ' ' |
18 | jnz .no |
18 | jnz .no |
19 | ; 2. Number of bytes per sector is the same as for physical device |
19 | ; 2. Number of bytes per sector is the same as for physical device |
20 | ; (that is, 0x200 for hard disk) |
20 | ; (that is, 0x200 for hard disk) |
21 | cmp word [ebx+11], 0x200 |
21 | cmp word [ebx+11], 0x200 |
22 | jnz .no |
22 | jnz .no |
23 | ; 3. Number of sectors per cluster must be power of 2 |
23 | ; 3. Number of sectors per cluster must be power of 2 |
24 | movzx eax, byte [ebx+13] |
24 | movzx eax, byte [ebx+13] |
25 | dec eax |
25 | dec eax |
26 | js .no |
26 | js .no |
27 | test al, [ebx+13] |
27 | test al, [ebx+13] |
28 | jnz .no |
28 | jnz .no |
29 | ; 4. FAT parameters must be zero |
29 | ; 4. FAT parameters must be zero |
30 | cmp word [ebx+14], 0 |
30 | cmp word [ebx+14], 0 |
31 | jnz .no |
31 | jnz .no |
32 | cmp dword [ebx+16], 0 |
32 | cmp dword [ebx+16], 0 |
33 | jnz .no |
33 | jnz .no |
34 | cmp byte [ebx+20], 0 |
34 | cmp byte [ebx+20], 0 |
35 | jnz .no |
35 | jnz .no |
36 | cmp word [ebx+22], 0 |
36 | cmp word [ebx+22], 0 |
37 | jnz .no |
37 | jnz .no |
38 | cmp dword [ebx+32], 0 |
38 | cmp dword [ebx+32], 0 |
39 | jnz .no |
39 | jnz .no |
40 | ; 5. Number of sectors <= partition size |
40 | ; 5. Number of sectors <= partition size |
41 | cmp dword [ebx+0x2C], 0 |
41 | cmp dword [ebx+0x2C], 0 |
42 | ja .no |
42 | ja .no |
43 | cmp [ebx+0x28], edx |
43 | cmp [ebx+0x28], edx |
44 | ja .no |
44 | ja .no |
45 | ; 6. $MFT and $MFTMirr clusters must be within partition |
45 | ; 6. $MFT and $MFTMirr clusters must be within partition |
46 | cmp dword [ebx+0x34], 0 |
46 | cmp dword [ebx+0x34], 0 |
47 | ja .no |
47 | ja .no |
48 | push edx |
48 | push edx |
49 | movzx eax, byte [ebx+13] |
49 | movzx eax, byte [ebx+13] |
50 | mul dword [ebx+0x30] |
50 | mul dword [ebx+0x30] |
51 | test edx, edx |
51 | test edx, edx |
52 | pop edx |
52 | pop edx |
53 | jnz .no |
53 | jnz .no |
54 | cmp eax, edx |
54 | cmp eax, edx |
55 | ja .no |
55 | ja .no |
56 | cmp dword [ebx+0x3C], 0 |
56 | cmp dword [ebx+0x3C], 0 |
57 | ja .no |
57 | ja .no |
58 | push edx |
58 | push edx |
59 | movzx eax, byte [ebx+13] |
59 | movzx eax, byte [ebx+13] |
60 | mul dword [ebx+0x38] |
60 | mul dword [ebx+0x38] |
61 | test edx, edx |
61 | test edx, edx |
62 | pop edx |
62 | pop edx |
63 | jnz .no |
63 | jnz .no |
64 | cmp eax, edx |
64 | cmp eax, edx |
65 | ja .no |
65 | ja .no |
66 | ; 7. Clusters per FRS must be either negative and in [-31,-9] or positive and power of 2 |
66 | ; 7. Clusters per FRS must be either negative and in [-31,-9] or positive and power of 2 |
67 | movsx eax, byte [ebx+0x40] |
67 | movsx eax, byte [ebx+0x40] |
68 | cmp al, -31 |
68 | cmp al, -31 |
69 | jl .no |
69 | jl .no |
70 | cmp al, -9 |
70 | cmp al, -9 |
71 | jle @f |
71 | jle @f |
72 | dec eax |
72 | dec eax |
73 | js .no |
73 | js .no |
74 | test [ebx+0x40], al |
74 | test [ebx+0x40], al |
75 | jnz .no |
75 | jnz .no |
76 | @@: |
76 | @@: |
77 | ; 8. Same for clusters per IndexAllocationBuffer |
77 | ; 8. Same for clusters per IndexAllocationBuffer |
78 | movsx eax, byte [ebx+0x44] |
78 | movsx eax, byte [ebx+0x44] |
79 | cmp al, -31 |
79 | cmp al, -31 |
80 | jl .no |
80 | jl .no |
81 | cmp al, -9 |
81 | cmp al, -9 |
82 | jle @f |
82 | jle @f |
83 | dec eax |
83 | dec eax |
84 | js .no |
84 | js .no |
85 | test [ebx+0x44], al |
85 | test [ebx+0x44], al |
86 | jnz .no |
86 | jnz .no |
87 | @@: |
87 | @@: |
88 | ; OK, this is correct NTFS bootsector |
88 | ; OK, this is correct NTFS bootsector |
89 | clc |
89 | clc |
90 | ret |
90 | ret |
91 | .no: |
91 | .no: |
92 | ; No, this bootsector isn't NTFS |
92 | ; No, this bootsector isn't NTFS |
93 | stc |
93 | stc |
94 | ret |
94 | ret |
95 | 95 | ||
96 | ntfs_setup: ; CODE XREF: part_set.inc |
96 | ntfs_setup: ; CODE XREF: part_set.inc |
97 | ; By given bootsector, initialize some NTFS variables |
97 | ; By given bootsector, initialize some NTFS variables |
98 | ; call ntfs_test_bootsec ; checking boot sector was already |
98 | ; call ntfs_test_bootsec ; checking boot sector was already |
99 | ; jc problem_fat_dec_count |
99 | ; jc problem_fat_dec_count |
100 | movzx eax, byte [ebx+13] |
100 | movzx eax, byte [ebx+13] |
101 | mov [ntfs_data.sectors_per_cluster], eax |
101 | mov [ntfs_data.sectors_per_cluster], eax |
102 | mov eax, [ebx+0x28] |
102 | mov eax, [ebx+0x28] |
103 | add eax, [PARTITION_START] |
103 | add eax, [PARTITION_START] |
104 | dec eax |
104 | dec eax |
105 | mov [PARTITION_END], eax |
105 | mov [PARTITION_END], eax |
106 | mov [fs_type], 1 |
106 | mov [fs_type], 1 |
107 | mov eax, [ebx+0x30] |
107 | mov eax, [ebx+0x30] |
108 | mov [ntfs_data.mft_cluster], eax |
108 | mov [ntfs_data.mft_cluster], eax |
109 | mov eax, [ebx+0x38] |
109 | mov eax, [ebx+0x38] |
110 | mov [ntfs_data.mftmirr_cluster], eax |
110 | mov [ntfs_data.mftmirr_cluster], eax |
111 | movsx eax, byte [ebx+0x40] |
111 | movsx eax, byte [ebx+0x40] |
112 | test eax, eax |
112 | test eax, eax |
113 | js .1 |
113 | js .1 |
114 | mul [ntfs_data.sectors_per_cluster] |
114 | mul [ntfs_data.sectors_per_cluster] |
115 | shl eax, 9 |
115 | shl eax, 9 |
116 | jmp .2 |
116 | jmp .2 |
117 | .1: |
117 | .1: |
118 | neg eax |
118 | neg eax |
119 | mov ecx, eax |
119 | mov ecx, eax |
120 | mov eax, 1 |
120 | mov eax, 1 |
121 | shl eax, cl |
121 | shl eax, cl |
122 | .2: |
122 | .2: |
123 | mov [ntfs_data.frs_size], eax |
123 | mov [ntfs_data.frs_size], eax |
124 | movsx eax, byte [ebx+0x44] |
124 | movsx eax, byte [ebx+0x44] |
125 | test eax, eax |
125 | test eax, eax |
126 | js .3 |
126 | js .3 |
127 | mul [ntfs_data.sectors_per_cluster] |
127 | mul [ntfs_data.sectors_per_cluster] |
128 | shl eax, 9 |
128 | shl eax, 9 |
129 | jmp .4 |
129 | jmp .4 |
130 | .3: |
130 | .3: |
131 | neg eax |
131 | neg eax |
132 | mov ecx, eax |
132 | mov ecx, eax |
133 | mov eax, 1 |
133 | mov eax, 1 |
134 | shl eax, cl |
134 | shl eax, cl |
135 | .4: |
135 | .4: |
136 | mov [ntfs_data.iab_size], eax |
136 | mov [ntfs_data.iab_size], eax |
137 | ; allocate space for buffers |
137 | ; allocate space for buffers |
138 | add eax, [ntfs_data.frs_size] |
138 | add eax, [ntfs_data.frs_size] |
139 | push eax |
139 | push eax |
140 | call kernel_alloc |
140 | call kernel_alloc |
141 | test eax, eax |
141 | test eax, eax |
142 | jz problem_fat_dec_count |
142 | jz problem_fat_dec_count |
143 | mov [ntfs_data.frs_buffer], eax |
143 | mov [ntfs_data.frs_buffer], eax |
144 | add eax, [ntfs_data.frs_size] |
144 | add eax, [ntfs_data.frs_size] |
145 | mov [ntfs_data.iab_buffer], eax |
145 | mov [ntfs_data.iab_buffer], eax |
146 | ; read $MFT disposition |
146 | ; read $MFT disposition |
147 | mov eax, [ntfs_data.mft_cluster] |
147 | mov eax, [ntfs_data.mft_cluster] |
148 | mul [ntfs_data.sectors_per_cluster] |
148 | mul [ntfs_data.sectors_per_cluster] |
149 | call ntfs_read_frs_sector |
149 | call ntfs_read_frs_sector |
150 | cmp [hd_error], 0 |
150 | cmp [hd_error], 0 |
151 | jnz .usemirr |
151 | jnz .usemirr |
152 | cmp dword [ebx], 'FILE' |
152 | cmp dword [ebx], 'FILE' |
153 | jnz .usemirr |
153 | jnz .usemirr |
154 | call ntfs_restore_usa_frs |
154 | call ntfs_restore_usa_frs |
155 | jnc .mftok |
155 | jnc .mftok |
156 | .usemirr: |
156 | .usemirr: |
157 | and [hd_error], 0 |
157 | and [hd_error], 0 |
158 | mov eax, [ntfs_data.mftmirr_cluster] |
158 | mov eax, [ntfs_data.mftmirr_cluster] |
159 | mul [ntfs_data.sectors_per_cluster] |
159 | mul [ntfs_data.sectors_per_cluster] |
160 | call ntfs_read_frs_sector |
160 | call ntfs_read_frs_sector |
161 | cmp [hd_error], 0 |
161 | cmp [hd_error], 0 |
162 | jnz @f |
162 | jnz @f |
163 | cmp dword [ebx], 'FILE' |
163 | cmp dword [ebx], 'FILE' |
164 | jnz @f |
164 | jnz @f |
165 | call ntfs_restore_usa_frs |
165 | call ntfs_restore_usa_frs |
166 | jnc .mftok |
166 | jnc .mftok |
167 | @@: |
167 | @@: |
168 | ; $MFT and $MFTMirr invalid! |
168 | ; $MFT and $MFTMirr invalid! |
169 | .fail_free_frs: |
169 | .fail_free_frs: |
170 | push [ntfs_data.frs_buffer] |
170 | push [ntfs_data.frs_buffer] |
171 | call kernel_free |
171 | call kernel_free |
172 | jmp problem_fat_dec_count |
172 | jmp problem_fat_dec_count |
173 | .fail_free_mft: |
173 | .fail_free_mft: |
174 | push [ntfs_data.mft_retrieval] |
174 | push [ntfs_data.mft_retrieval] |
175 | call kernel_free |
175 | call kernel_free |
176 | jmp .fail_free_frs |
176 | jmp .fail_free_frs |
177 | .mftok: |
177 | .mftok: |
178 | ; read $MFT table retrieval information |
178 | ; read $MFT table retrieval information |
179 | ; start with one page, increase if not enough (when MFT too fragmented) |
179 | ; start with one page, increase if not enough (when MFT too fragmented) |
180 | push ebx |
180 | push ebx |
181 | push 0x1000 |
181 | push 0x1000 |
182 | call kernel_alloc |
182 | call kernel_alloc |
183 | pop ebx |
183 | pop ebx |
184 | test eax, eax |
184 | test eax, eax |
185 | jz .fail_free_frs |
185 | jz .fail_free_frs |
186 | mov [ntfs_data.mft_retrieval], eax |
186 | mov [ntfs_data.mft_retrieval], eax |
187 | and [ntfs_data.mft_retrieval_size], 0 |
187 | and [ntfs_data.mft_retrieval_size], 0 |
188 | mov [ntfs_data.mft_retrieval_alloc], 0x1000/8 |
188 | mov [ntfs_data.mft_retrieval_alloc], 0x1000/8 |
189 | ; $MFT base record must contain unnamed non-resident $DATA attribute |
189 | ; $MFT base record must contain unnamed non-resident $DATA attribute |
190 | movzx eax, word [ebx+14h] |
190 | movzx eax, word [ebx+14h] |
191 | add eax, ebx |
191 | add eax, ebx |
192 | .scandata: |
192 | .scandata: |
193 | cmp dword [eax], -1 |
193 | cmp dword [eax], -1 |
194 | jz .fail_free_mft |
194 | jz .fail_free_mft |
195 | cmp dword [eax], 0x80 |
195 | cmp dword [eax], 0x80 |
196 | jnz @f |
196 | jnz @f |
197 | cmp byte [eax+9], 0 |
197 | cmp byte [eax+9], 0 |
198 | jz .founddata |
198 | jz .founddata |
199 | @@: |
199 | @@: |
200 | add eax, [eax+4] |
200 | add eax, [eax+4] |
201 | jmp .scandata |
201 | jmp .scandata |
202 | .founddata: |
202 | .founddata: |
203 | cmp byte [eax+8], 0 |
203 | cmp byte [eax+8], 0 |
204 | jz .fail_free_mft |
204 | jz .fail_free_mft |
205 | ; load first portion of $DATA attribute retrieval information |
205 | ; load first portion of $DATA attribute retrieval information |
206 | mov edx, [eax+0x18] |
206 | mov edx, [eax+0x18] |
207 | mov [ntfs_data.mft_retrieval_end], edx |
207 | mov [ntfs_data.mft_retrieval_end], edx |
208 | mov esi, eax |
208 | mov esi, eax |
209 | movzx eax, word [eax+0x20] |
209 | movzx eax, word [eax+0x20] |
210 | add esi, eax |
210 | add esi, eax |
211 | sub esp, 10h |
211 | sub esp, 10h |
212 | .scanmcb: |
212 | .scanmcb: |
213 | call ntfs_decode_mcb_entry |
213 | call ntfs_decode_mcb_entry |
214 | jnc .scanmcbend |
214 | jnc .scanmcbend |
215 | call .get_mft_retrieval_ptr |
215 | call .get_mft_retrieval_ptr |
216 | mov edx, [esp] ; block length |
216 | mov edx, [esp] ; block length |
217 | mov [eax], edx |
217 | mov [eax], edx |
218 | mov edx, [esp+8] ; block addr (relative) |
218 | mov edx, [esp+8] ; block addr (relative) |
219 | mov [eax+4], edx |
219 | mov [eax+4], edx |
220 | inc [ntfs_data.mft_retrieval_size] |
220 | inc [ntfs_data.mft_retrieval_size] |
221 | jmp .scanmcb |
221 | jmp .scanmcb |
222 | .scanmcbend: |
222 | .scanmcbend: |
223 | add esp, 10h |
223 | add esp, 10h |
224 | ; there may be other portions of $DATA attribute in auxiliary records; |
224 | ; there may be other portions of $DATA attribute in auxiliary records; |
225 | ; if they will be needed, they will be loaded later |
225 | ; if they will be needed, they will be loaded later |
226 | 226 | ||
227 | mov [ntfs_data.cur_index_size], 0x1000/0x200 |
227 | mov [ntfs_data.cur_index_size], 0x1000/0x200 |
228 | push 0x1000 |
228 | push 0x1000 |
229 | call kernel_alloc |
229 | call kernel_alloc |
230 | test eax, eax |
230 | test eax, eax |
231 | jz .fail_free_mft |
231 | jz .fail_free_mft |
232 | mov [ntfs_data.cur_index_buf], eax |
232 | mov [ntfs_data.cur_index_buf], eax |
233 | 233 | ||
234 | popad |
234 | popad |
235 | call free_hd_channel |
235 | call free_hd_channel |
236 | and [hd1_status], 0 |
236 | and [hd1_status], 0 |
237 | ret |
237 | ret |
238 | 238 | ||
239 | .get_mft_retrieval_ptr: |
239 | .get_mft_retrieval_ptr: |
240 | pushad |
240 | pushad |
241 | mov eax, [ntfs_data.mft_retrieval_size] |
241 | mov eax, [ntfs_data.mft_retrieval_size] |
242 | cmp eax, [ntfs_data.mft_retrieval_alloc] |
242 | cmp eax, [ntfs_data.mft_retrieval_alloc] |
243 | jnz .ok |
243 | jnz .ok |
244 | add eax, 0x1000/8 |
244 | add eax, 0x1000/8 |
245 | mov [ntfs_data.mft_retrieval_alloc], eax |
245 | mov [ntfs_data.mft_retrieval_alloc], eax |
246 | shl eax, 3 |
246 | shl eax, 3 |
247 | push eax |
247 | push eax |
248 | call kernel_alloc |
248 | call kernel_alloc |
249 | test eax, eax |
249 | test eax, eax |
250 | jnz @f |
250 | jnz @f |
251 | popad |
251 | popad |
252 | add esp, 14h |
252 | add esp, 14h |
253 | jmp .fail_free_mft |
253 | jmp .fail_free_mft |
254 | @@: |
254 | @@: |
255 | mov esi, [ntfs_data.mft_retrieval] |
255 | mov esi, [ntfs_data.mft_retrieval] |
256 | mov edi, eax |
256 | mov edi, eax |
257 | mov ecx, [ntfs_data.mft_retrieval_size] |
257 | mov ecx, [ntfs_data.mft_retrieval_size] |
258 | add ecx, ecx |
258 | add ecx, ecx |
259 | rep movsd |
259 | rep movsd |
260 | push [ntfs_data.mft_retrieval] |
260 | push [ntfs_data.mft_retrieval] |
261 | mov [ntfs_data.mft_retrieval], eax |
261 | mov [ntfs_data.mft_retrieval], eax |
262 | call kernel_free |
262 | call kernel_free |
263 | mov eax, [ntfs_data.mft_retrieval_size] |
263 | mov eax, [ntfs_data.mft_retrieval_size] |
264 | .ok: |
264 | .ok: |
265 | shl eax, 3 |
265 | shl eax, 3 |
266 | add eax, [ntfs_data.mft_retrieval] |
266 | add eax, [ntfs_data.mft_retrieval] |
267 | mov [esp+28], eax |
267 | mov [esp+28], eax |
268 | popad |
268 | popad |
269 | ret |
269 | ret |
270 | 270 | ||
271 | ntfs_read_frs_sector: |
271 | ntfs_read_frs_sector: |
272 | push eax ecx |
272 | push eax ecx |
273 | add eax, [PARTITION_START] |
273 | add eax, [PARTITION_START] |
274 | mov ecx, [ntfs_data.frs_size] |
274 | mov ecx, [ntfs_data.frs_size] |
275 | shr ecx, 9 |
275 | shr ecx, 9 |
276 | mov ebx, [ntfs_data.frs_buffer] |
276 | mov ebx, [ntfs_data.frs_buffer] |
277 | push ebx |
277 | push ebx |
278 | @@: |
278 | @@: |
279 | call hd_read |
279 | call hd_read |
280 | cmp [hd_error], 0 |
280 | cmp [hd_error], 0 |
281 | jnz .fail |
281 | jnz .fail |
282 | add ebx, 0x200 |
282 | add ebx, 0x200 |
283 | inc eax |
283 | inc eax |
284 | loop @b |
284 | loop @b |
285 | .fail: |
285 | .fail: |
286 | pop ebx |
286 | pop ebx |
287 | pop ecx eax |
287 | pop ecx eax |
288 | ret |
288 | ret |
289 | 289 | ||
290 | uglobal |
290 | uglobal |
291 | align 4 |
291 | align 4 |
292 | ntfs_cur_attr dd ? |
292 | ntfs_cur_attr dd ? |
293 | ntfs_cur_iRecord dd ? |
293 | ntfs_cur_iRecord dd ? |
294 | ntfs_cur_offs dd ? ; in sectors |
294 | ntfs_cur_offs dd ? ; in sectors |
295 | ntfs_cur_size dd ? ; in sectors |
295 | ntfs_cur_size dd ? ; in sectors |
296 | ntfs_cur_buf dd ? |
296 | ntfs_cur_buf dd ? |
297 | ntfs_cur_read dd ? ; [output] |
297 | ntfs_cur_read dd ? ; [output] |
298 | ntfs_bCanContinue db ? |
298 | ntfs_bCanContinue db ? |
299 | rb 3 |
299 | rb 3 |
300 | 300 | ||
301 | ntfs_attrlist_buf rb 0x400 |
301 | ntfs_attrlist_buf rb 0x400 |
302 | ntfs_attrlist_mft_buf rb 0x400 |
302 | ntfs_attrlist_mft_buf rb 0x400 |
303 | ntfs_bitmap_buf rb 0x400 |
303 | ntfs_bitmap_buf rb 0x400 |
304 | 304 | ||
305 | ntfs_attr_iRecord dd ? |
305 | ntfs_attr_iRecord dd ? |
306 | ntfs_attr_iBaseRecord dd ? |
306 | ntfs_attr_iBaseRecord dd ? |
307 | ntfs_attr_offs dd ? |
307 | ntfs_attr_offs dd ? |
308 | ntfs_attr_list dd ? |
308 | ntfs_attr_list dd ? |
309 | ntfs_attr_size dq ? |
309 | ntfs_attr_size dq ? |
310 | ntfs_cur_tail dd ? |
310 | ntfs_cur_tail dd ? |
311 | endg |
311 | endg |
312 | 312 | ||
313 | ntfs_read_attr: |
313 | ntfs_read_attr: |
314 | ; in: global variables |
314 | ; in: global variables |
315 | ; out: [ntfs_cur_read] |
315 | ; out: [ntfs_cur_read] |
316 | pushad |
316 | pushad |
317 | and [ntfs_cur_read], 0 |
317 | and [ntfs_cur_read], 0 |
318 | cmp [ntfs_cur_iRecord], 0 |
318 | cmp [ntfs_cur_iRecord], 0 |
319 | jnz .nomft |
319 | jnz .nomft |
320 | cmp [ntfs_cur_attr], 0x80 |
320 | cmp [ntfs_cur_attr], 0x80 |
321 | jnz .nomft |
321 | jnz .nomft |
322 | mov eax, [ntfs_data.mft_retrieval_end] |
322 | mov eax, [ntfs_data.mft_retrieval_end] |
323 | inc eax |
323 | inc eax |
324 | mul [ntfs_data.sectors_per_cluster] |
324 | mul [ntfs_data.sectors_per_cluster] |
325 | cmp eax, [ntfs_cur_offs] |
325 | cmp eax, [ntfs_cur_offs] |
326 | jbe .nomft |
326 | jbe .nomft |
327 | ; precalculated part of $Mft $DATA |
327 | ; precalculated part of $Mft $DATA |
328 | mov esi, [ntfs_data.mft_retrieval] |
328 | mov esi, [ntfs_data.mft_retrieval] |
329 | mov eax, [ntfs_cur_offs] |
329 | mov eax, [ntfs_cur_offs] |
330 | xor edx, edx |
330 | xor edx, edx |
331 | div [ntfs_data.sectors_per_cluster] |
331 | div [ntfs_data.sectors_per_cluster] |
332 | ; eax = VCN, edx = offset in sectors from beginning of cluster |
332 | ; eax = VCN, edx = offset in sectors from beginning of cluster |
333 | xor ecx, ecx ; ecx will contain LCN |
333 | xor ecx, ecx ; ecx will contain LCN |
334 | .mftscan: |
334 | .mftscan: |
335 | add ecx, [esi+4] |
335 | add ecx, [esi+4] |
336 | sub eax, [esi] |
336 | sub eax, [esi] |
337 | jb @f |
337 | jb @f |
338 | add esi, 8 |
338 | add esi, 8 |
339 | push eax |
339 | push eax |
340 | mov eax, [ntfs_data.mft_retrieval_end] |
340 | mov eax, [ntfs_data.mft_retrieval_end] |
341 | shl eax, 3 |
341 | shl eax, 3 |
342 | add eax, [ntfs_data.mft_retrieval] |
342 | add eax, [ntfs_data.mft_retrieval] |
343 | cmp eax, esi |
343 | cmp eax, esi |
344 | pop eax |
344 | pop eax |
345 | jnz .mftscan |
345 | jnz .mftscan |
346 | jmp .nomft |
346 | jmp .nomft |
347 | @@: |
347 | @@: |
348 | push ecx |
348 | push ecx |
349 | add ecx, eax |
349 | add ecx, eax |
350 | add ecx, [esi] |
350 | add ecx, [esi] |
351 | push eax |
351 | push eax |
352 | push edx |
352 | push edx |
353 | mov eax, [ntfs_data.sectors_per_cluster] |
353 | mov eax, [ntfs_data.sectors_per_cluster] |
354 | mul ecx |
354 | mul ecx |
355 | ; eax = sector on partition |
355 | ; eax = sector on partition |
356 | add eax, [PARTITION_START] |
356 | add eax, [PARTITION_START] |
357 | pop edx |
357 | pop edx |
358 | add eax, edx |
358 | add eax, edx |
359 | mov ebx, [ntfs_cur_buf] |
359 | mov ebx, [ntfs_cur_buf] |
360 | pop ecx |
360 | pop ecx |
361 | neg ecx |
361 | neg ecx |
362 | imul ecx, [ntfs_data.sectors_per_cluster] |
362 | imul ecx, [ntfs_data.sectors_per_cluster] |
363 | sub ecx, edx |
363 | sub ecx, edx |
364 | cmp ecx, [ntfs_cur_size] |
364 | cmp ecx, [ntfs_cur_size] |
365 | jb @f |
365 | jb @f |
366 | mov ecx, [ntfs_cur_size] |
366 | mov ecx, [ntfs_cur_size] |
367 | @@: |
367 | @@: |
368 | ; ecx = number of sequential sectors to read |
368 | ; ecx = number of sequential sectors to read |
369 | call hd_read |
369 | call hd_read |
370 | cmp [hd_error], 0 |
370 | cmp [hd_error], 0 |
371 | jnz .errread |
371 | jnz .errread |
372 | add [ntfs_cur_read], 0x200 |
372 | add [ntfs_cur_read], 0x200 |
373 | dec [ntfs_cur_size] |
373 | dec [ntfs_cur_size] |
374 | inc [ntfs_cur_offs] |
374 | inc [ntfs_cur_offs] |
375 | add ebx, 0x200 |
375 | add ebx, 0x200 |
376 | mov [ntfs_cur_buf], ebx |
376 | mov [ntfs_cur_buf], ebx |
377 | inc eax |
377 | inc eax |
378 | loop @b |
378 | loop @b |
379 | pop ecx |
379 | pop ecx |
380 | xor eax, eax |
380 | xor eax, eax |
381 | xor edx, edx |
381 | xor edx, edx |
382 | cmp [ntfs_cur_size], eax |
382 | cmp [ntfs_cur_size], eax |
383 | jz @f |
383 | jz @f |
384 | add esi, 8 |
384 | add esi, 8 |
385 | push eax |
385 | push eax |
386 | mov eax, [ntfs_data.mft_retrieval_end] |
386 | mov eax, [ntfs_data.mft_retrieval_end] |
387 | shl eax, 3 |
387 | shl eax, 3 |
388 | add eax, [ntfs_data.mft_retrieval] |
388 | add eax, [ntfs_data.mft_retrieval] |
389 | cmp eax, esi |
389 | cmp eax, esi |
390 | pop eax |
390 | pop eax |
391 | jz .nomft |
391 | jz .nomft |
392 | jmp .mftscan |
392 | jmp .mftscan |
393 | @@: |
393 | @@: |
394 | popad |
394 | popad |
395 | ret |
395 | ret |
396 | .errread: |
396 | .errread: |
397 | pop ecx |
397 | pop ecx |
398 | .errret: |
398 | .errret: |
399 | stc |
399 | stc |
400 | popad |
400 | popad |
401 | ret |
401 | ret |
402 | .nomft: |
402 | .nomft: |
403 | ; 1. Read file record. |
403 | ; 1. Read file record. |
404 | ; N.B. This will do recursive call of read_attr for $MFT::$Data. |
404 | ; N.B. This will do recursive call of read_attr for $MFT::$Data. |
405 | mov eax, [ntfs_cur_iRecord] |
405 | mov eax, [ntfs_cur_iRecord] |
406 | mov [ntfs_attr_iRecord], eax |
406 | mov [ntfs_attr_iRecord], eax |
407 | and [ntfs_attr_list], 0 |
407 | and [ntfs_attr_list], 0 |
408 | or dword [ntfs_attr_size], -1 |
408 | or dword [ntfs_attr_size], -1 |
409 | or dword [ntfs_attr_size+4], -1 |
409 | or dword [ntfs_attr_size+4], -1 |
410 | or [ntfs_attr_iBaseRecord], -1 |
410 | or [ntfs_attr_iBaseRecord], -1 |
411 | call ntfs_read_file_record |
411 | call ntfs_read_file_record |
412 | test eax, eax |
412 | test eax, eax |
413 | jz .errret |
413 | jz .errret |
414 | ; 2. Find required attribute. |
414 | ; 2. Find required attribute. |
415 | mov eax, [ntfs_data.frs_buffer] |
415 | mov eax, [ntfs_data.frs_buffer] |
416 | ; a) For auxiliary records, read base record |
416 | ; a) For auxiliary records, read base record |
417 | ; N.B. If base record is present, |
417 | ; N.B. If base record is present, |
418 | ; base iRecord may be 0 (for $Mft), but SequenceNumber is nonzero |
418 | ; base iRecord may be 0 (for $Mft), but SequenceNumber is nonzero |
419 | cmp dword [eax+24h], 0 |
419 | cmp dword [eax+24h], 0 |
420 | jz @f |
420 | jz @f |
421 | mov eax, [eax+20h] |
421 | mov eax, [eax+20h] |
422 | ; test eax, eax |
422 | ; test eax, eax |
423 | ; jz @f |
423 | ; jz @f |
424 | .beginfindattr: |
424 | .beginfindattr: |
425 | mov [ntfs_attr_iRecord], eax |
425 | mov [ntfs_attr_iRecord], eax |
426 | call ntfs_read_file_record |
426 | call ntfs_read_file_record |
427 | test eax, eax |
427 | test eax, eax |
428 | jz .errret |
428 | jz .errret |
429 | @@: |
429 | @@: |
430 | ; b) Scan for required attribute and for $ATTR_LIST |
430 | ; b) Scan for required attribute and for $ATTR_LIST |
431 | mov eax, [ntfs_data.frs_buffer] |
431 | mov eax, [ntfs_data.frs_buffer] |
432 | movzx ecx, word [eax+14h] |
432 | movzx ecx, word [eax+14h] |
433 | add eax, ecx |
433 | add eax, ecx |
434 | mov ecx, [ntfs_cur_attr] |
434 | mov ecx, [ntfs_cur_attr] |
435 | and [ntfs_attr_offs], 0 |
435 | and [ntfs_attr_offs], 0 |
436 | .scanattr: |
436 | .scanattr: |
437 | cmp dword [eax], -1 |
437 | cmp dword [eax], -1 |
438 | jz .scandone |
438 | jz .scandone |
439 | cmp dword [eax], ecx |
439 | cmp dword [eax], ecx |
440 | jz .okattr |
440 | jz .okattr |
441 | cmp [ntfs_attr_iBaseRecord], -1 |
441 | cmp [ntfs_attr_iBaseRecord], -1 |
442 | jnz .scancont |
442 | jnz .scancont |
443 | cmp dword [eax], 0x20 ; $ATTR_LIST |
443 | cmp dword [eax], 0x20 ; $ATTR_LIST |
444 | jnz .scancont |
444 | jnz .scancont |
445 | mov [ntfs_attr_list], eax |
445 | mov [ntfs_attr_list], eax |
446 | jmp .scancont |
446 | jmp .scancont |
447 | .okattr: |
447 | .okattr: |
448 | ; ignore named $DATA attributes (aka NTFS streams) |
448 | ; ignore named $DATA attributes (aka NTFS streams) |
449 | cmp ecx, 0x80 |
449 | cmp ecx, 0x80 |
450 | jnz @f |
450 | jnz @f |
451 | cmp byte [eax+9], 0 |
451 | cmp byte [eax+9], 0 |
452 | jnz .scancont |
452 | jnz .scancont |
453 | @@: |
453 | @@: |
454 | mov [ntfs_attr_offs], eax |
454 | mov [ntfs_attr_offs], eax |
455 | .scancont: |
455 | .scancont: |
456 | add eax, [eax+4] |
456 | add eax, [eax+4] |
457 | jmp .scanattr |
457 | jmp .scanattr |
458 | .continue: |
458 | .continue: |
459 | pushad |
459 | pushad |
460 | and [ntfs_cur_read], 0 |
460 | and [ntfs_cur_read], 0 |
461 | .scandone: |
461 | .scandone: |
462 | ; c) Check for required offset and length |
462 | ; c) Check for required offset and length |
463 | mov ecx, [ntfs_attr_offs] |
463 | mov ecx, [ntfs_attr_offs] |
464 | jecxz .noattr |
464 | jecxz .noattr |
465 | push [ntfs_cur_size] |
465 | push [ntfs_cur_size] |
466 | push [ntfs_cur_read] |
466 | push [ntfs_cur_read] |
467 | call .doreadattr |
467 | call .doreadattr |
468 | pop edx |
468 | pop edx |
469 | pop eax |
469 | pop eax |
470 | jc @f |
470 | jc @f |
471 | cmp [ntfs_bCanContinue], 0 |
471 | cmp [ntfs_bCanContinue], 0 |
472 | jz @f |
472 | jz @f |
473 | sub edx, [ntfs_cur_read] |
473 | sub edx, [ntfs_cur_read] |
474 | neg edx |
474 | neg edx |
475 | shr edx, 9 |
475 | shr edx, 9 |
476 | sub eax, edx |
476 | sub eax, edx |
477 | mov [ntfs_cur_size], eax |
477 | mov [ntfs_cur_size], eax |
478 | jnz .not_in_cur |
478 | jnz .not_in_cur |
479 | @@: |
479 | @@: |
480 | popad |
480 | popad |
481 | ret |
481 | ret |
482 | .noattr: |
482 | .noattr: |
483 | .not_in_cur: |
483 | .not_in_cur: |
484 | cmp [ntfs_cur_attr], 0x20 |
484 | cmp [ntfs_cur_attr], 0x20 |
485 | jz @f |
485 | jz @f |
486 | mov ecx, [ntfs_attr_list] |
486 | mov ecx, [ntfs_attr_list] |
487 | test ecx, ecx |
487 | test ecx, ecx |
488 | jnz .lookattr |
488 | jnz .lookattr |
489 | .ret_is_attr: |
489 | .ret_is_attr: |
490 | cmp [ntfs_attr_offs], 1 ; CF set <=> ntfs_attr_offs == 0 |
490 | cmp [ntfs_attr_offs], 1 ; CF set <=> ntfs_attr_offs == 0 |
491 | popad |
491 | popad |
492 | ret |
492 | ret |
493 | .lookattr: |
493 | .lookattr: |
494 | ; required attribute or required offset was not found in base record; |
494 | ; required attribute or required offset was not found in base record; |
495 | ; it may be present in auxiliary records; |
495 | ; it may be present in auxiliary records; |
496 | ; scan $ATTR_LIST |
496 | ; scan $ATTR_LIST |
497 | mov eax, [ntfs_attr_iBaseRecord] |
497 | mov eax, [ntfs_attr_iBaseRecord] |
498 | cmp eax, -1 |
498 | cmp eax, -1 |
499 | jz @f |
499 | jz @f |
500 | call ntfs_read_file_record |
500 | call ntfs_read_file_record |
501 | test eax, eax |
501 | test eax, eax |
502 | jz .errret |
502 | jz .errret |
503 | or [ntfs_attr_iBaseRecord], -1 |
503 | or [ntfs_attr_iBaseRecord], -1 |
504 | @@: |
504 | @@: |
505 | push [ntfs_cur_offs] |
505 | push [ntfs_cur_offs] |
506 | push [ntfs_cur_size] |
506 | push [ntfs_cur_size] |
507 | push [ntfs_cur_read] |
507 | push [ntfs_cur_read] |
508 | push [ntfs_cur_buf] |
508 | push [ntfs_cur_buf] |
509 | push dword [ntfs_attr_size] |
509 | push dword [ntfs_attr_size] |
510 | push dword [ntfs_attr_size+4] |
510 | push dword [ntfs_attr_size+4] |
511 | or dword [ntfs_attr_size], -1 |
511 | or dword [ntfs_attr_size], -1 |
512 | or dword [ntfs_attr_size+4], -1 |
512 | or dword [ntfs_attr_size+4], -1 |
513 | and [ntfs_cur_offs], 0 |
513 | and [ntfs_cur_offs], 0 |
514 | mov [ntfs_cur_size], 2 |
514 | mov [ntfs_cur_size], 2 |
515 | and [ntfs_cur_read], 0 |
515 | and [ntfs_cur_read], 0 |
516 | mov eax, ntfs_attrlist_buf |
516 | mov eax, ntfs_attrlist_buf |
517 | cmp [ntfs_cur_iRecord], 0 |
517 | cmp [ntfs_cur_iRecord], 0 |
518 | jnz @f |
518 | jnz @f |
519 | mov eax, ntfs_attrlist_mft_buf |
519 | mov eax, ntfs_attrlist_mft_buf |
520 | @@: |
520 | @@: |
521 | mov [ntfs_cur_buf], eax |
521 | mov [ntfs_cur_buf], eax |
522 | push eax |
522 | push eax |
523 | call .doreadattr |
523 | call .doreadattr |
524 | pop esi |
524 | pop esi |
525 | mov edx, 1 |
525 | mov edx, 1 |
526 | pop dword [ntfs_attr_size+4] |
526 | pop dword [ntfs_attr_size+4] |
527 | pop dword [ntfs_attr_size] |
527 | pop dword [ntfs_attr_size] |
528 | mov ebp, [ntfs_cur_read] |
528 | mov ebp, [ntfs_cur_read] |
529 | pop [ntfs_cur_buf] |
529 | pop [ntfs_cur_buf] |
530 | pop [ntfs_cur_read] |
530 | pop [ntfs_cur_read] |
531 | pop [ntfs_cur_size] |
531 | pop [ntfs_cur_size] |
532 | pop [ntfs_cur_offs] |
532 | pop [ntfs_cur_offs] |
533 | jc .errret |
533 | jc .errret |
534 | or edi, -1 |
534 | or edi, -1 |
535 | lea ebp, [ebp+esi-1Ah] |
535 | lea ebp, [ebp+esi-1Ah] |
536 | .scanliststart: |
536 | .scanliststart: |
537 | mov eax, [ntfs_cur_attr] |
537 | mov eax, [ntfs_cur_attr] |
538 | .scanlist: |
538 | .scanlist: |
539 | cmp esi, ebp |
539 | cmp esi, ebp |
540 | jae .scanlistdone |
540 | jae .scanlistdone |
541 | cmp eax, [esi] |
541 | cmp eax, [esi] |
542 | jz @f |
542 | jz @f |
543 | .scanlistcont: |
543 | .scanlistcont: |
544 | movzx ecx, word [esi+4] |
544 | movzx ecx, word [esi+4] |
545 | add esi, ecx |
545 | add esi, ecx |
546 | jmp .scanlist |
546 | jmp .scanlist |
547 | @@: |
547 | @@: |
548 | ; ignore named $DATA attributes (aka NTFS streams) |
548 | ; ignore named $DATA attributes (aka NTFS streams) |
549 | cmp eax, 0x80 |
549 | cmp eax, 0x80 |
550 | jnz @f |
550 | jnz @f |
551 | cmp byte [esi+6], 0 |
551 | cmp byte [esi+6], 0 |
552 | jnz .scanlistcont |
552 | jnz .scanlistcont |
553 | @@: |
553 | @@: |
554 | push eax |
554 | push eax |
555 | mov eax, [esi+8] |
555 | mov eax, [esi+8] |
556 | test eax, eax |
556 | test eax, eax |
557 | jnz .testf |
557 | jnz .testf |
558 | mov eax, dword [ntfs_attr_size] |
558 | mov eax, dword [ntfs_attr_size] |
559 | and eax, dword [ntfs_attr_size+4] |
559 | and eax, dword [ntfs_attr_size+4] |
560 | cmp eax, -1 |
560 | cmp eax, -1 |
561 | jnz .testfz |
561 | jnz .testfz |
562 | ; if attribute is in auxiliary records, its size is defined only in first |
562 | ; if attribute is in auxiliary records, its size is defined only in first |
563 | mov eax, [esi+10h] |
563 | mov eax, [esi+10h] |
564 | call ntfs_read_file_record |
564 | call ntfs_read_file_record |
565 | test eax, eax |
565 | test eax, eax |
566 | jnz @f |
566 | jnz @f |
567 | .errret_pop: |
567 | .errret_pop: |
568 | pop eax |
568 | pop eax |
569 | jmp .errret |
569 | jmp .errret |
570 | @@: |
570 | @@: |
571 | mov eax, [ntfs_data.frs_buffer] |
571 | mov eax, [ntfs_data.frs_buffer] |
572 | movzx ecx, word [eax+14h] |
572 | movzx ecx, word [eax+14h] |
573 | add eax, ecx |
573 | add eax, ecx |
574 | mov ecx, [ntfs_cur_attr] |
574 | mov ecx, [ntfs_cur_attr] |
575 | @@: |
575 | @@: |
576 | cmp dword [eax], -1 |
576 | cmp dword [eax], -1 |
577 | jz .errret_pop |
577 | jz .errret_pop |
578 | cmp dword [eax], ecx |
578 | cmp dword [eax], ecx |
579 | jz @f |
579 | jz @f |
580 | .l1: |
580 | .l1: |
581 | add eax, [eax+4] |
581 | add eax, [eax+4] |
582 | jmp @b |
582 | jmp @b |
583 | @@: |
583 | @@: |
584 | cmp eax, 0x80 |
584 | cmp eax, 0x80 |
585 | jnz @f |
585 | jnz @f |
586 | cmp byte [eax+9], 0 |
586 | cmp byte [eax+9], 0 |
587 | jnz .l1 |
587 | jnz .l1 |
588 | @@: |
588 | @@: |
589 | cmp byte [eax+8], 0 |
589 | cmp byte [eax+8], 0 |
590 | jnz .sdnores |
590 | jnz .sdnores |
591 | mov eax, [eax+10h] |
591 | mov eax, [eax+10h] |
592 | mov dword [ntfs_attr_size], eax |
592 | mov dword [ntfs_attr_size], eax |
593 | and dword [ntfs_attr_size+4], 0 |
593 | and dword [ntfs_attr_size+4], 0 |
594 | jmp .testfz |
594 | jmp .testfz |
595 | .sdnores: |
595 | .sdnores: |
596 | mov ecx, [eax+30h] |
596 | mov ecx, [eax+30h] |
597 | mov dword [ntfs_attr_size], ecx |
597 | mov dword [ntfs_attr_size], ecx |
598 | mov ecx, [eax+34h] |
598 | mov ecx, [eax+34h] |
599 | mov dword [ntfs_attr_size+4], ecx |
599 | mov dword [ntfs_attr_size+4], ecx |
600 | .testfz: |
600 | .testfz: |
601 | xor eax, eax |
601 | xor eax, eax |
602 | .testf: |
602 | .testf: |
603 | imul eax, [ntfs_data.sectors_per_cluster] |
603 | imul eax, [ntfs_data.sectors_per_cluster] |
604 | cmp eax, [ntfs_cur_offs] |
604 | cmp eax, [ntfs_cur_offs] |
605 | pop eax |
605 | pop eax |
606 | ja @f |
606 | ja @f |
607 | mov edi, [esi+10h] ; keep previous iRecord |
607 | mov edi, [esi+10h] ; keep previous iRecord |
608 | jmp .scanlistcont |
608 | jmp .scanlistcont |
609 | @@: |
609 | @@: |
610 | .scanlistfound: |
610 | .scanlistfound: |
611 | cmp edi, -1 |
611 | cmp edi, -1 |
612 | jnz @f |
612 | jnz @f |
613 | popad |
613 | popad |
614 | ret |
614 | ret |
615 | @@: |
615 | @@: |
616 | mov eax, [ntfs_cur_iRecord] |
616 | mov eax, [ntfs_cur_iRecord] |
617 | mov [ntfs_attr_iBaseRecord], eax |
617 | mov [ntfs_attr_iBaseRecord], eax |
618 | mov eax, edi |
618 | mov eax, edi |
619 | jmp .beginfindattr |
619 | jmp .beginfindattr |
620 | .sde: |
620 | .sde: |
621 | popad |
621 | popad |
622 | stc |
622 | stc |
623 | ret |
623 | ret |
624 | .scanlistdone: |
624 | .scanlistdone: |
625 | sub ebp, ntfs_attrlist_buf-1Ah |
625 | sub ebp, ntfs_attrlist_buf-1Ah |
626 | cmp [ntfs_cur_iRecord], 0 |
626 | cmp [ntfs_cur_iRecord], 0 |
627 | jnz @f |
627 | jnz @f |
628 | sub ebp, ntfs_attrlist_mft_buf-ntfs_attrlist_buf |
628 | sub ebp, ntfs_attrlist_mft_buf-ntfs_attrlist_buf |
629 | @@: |
629 | @@: |
630 | cmp ebp, 0x400 |
630 | cmp ebp, 0x400 |
631 | jnz .scanlistfound |
631 | jnz .scanlistfound |
632 | inc edx |
632 | inc edx |
633 | push esi edi |
633 | push esi edi |
634 | mov esi, ntfs_attrlist_buf+0x200 |
634 | mov esi, ntfs_attrlist_buf+0x200 |
635 | mov edi, ntfs_attrlist_buf |
635 | mov edi, ntfs_attrlist_buf |
636 | cmp [ntfs_cur_iRecord], 0 |
636 | cmp [ntfs_cur_iRecord], 0 |
637 | jnz @f |
637 | jnz @f |
638 | mov esi, ntfs_attrlist_mft_buf+0x200 |
638 | mov esi, ntfs_attrlist_mft_buf+0x200 |
639 | mov edi, ntfs_attrlist_mft_buf |
639 | mov edi, ntfs_attrlist_mft_buf |
640 | @@: |
640 | @@: |
641 | mov ecx, 0x200/4 |
641 | mov ecx, 0x200/4 |
642 | rep movsd |
642 | rep movsd |
643 | mov eax, edi |
643 | mov eax, edi |
644 | pop edi esi |
644 | pop edi esi |
645 | sub esi, 0x200 |
645 | sub esi, 0x200 |
646 | push [ntfs_cur_offs] |
646 | push [ntfs_cur_offs] |
647 | push [ntfs_cur_size] |
647 | push [ntfs_cur_size] |
648 | push [ntfs_cur_read] |
648 | push [ntfs_cur_read] |
649 | push [ntfs_cur_buf] |
649 | push [ntfs_cur_buf] |
650 | push dword [ntfs_attr_size] |
650 | push dword [ntfs_attr_size] |
651 | push dword [ntfs_attr_size+4] |
651 | push dword [ntfs_attr_size+4] |
652 | or dword [ntfs_attr_size], -1 |
652 | or dword [ntfs_attr_size], -1 |
653 | or dword [ntfs_attr_size+4], -1 |
653 | or dword [ntfs_attr_size+4], -1 |
654 | mov [ntfs_cur_offs], edx |
654 | mov [ntfs_cur_offs], edx |
655 | mov [ntfs_cur_size], 1 |
655 | mov [ntfs_cur_size], 1 |
656 | and [ntfs_cur_read], 0 |
656 | and [ntfs_cur_read], 0 |
657 | mov [ntfs_cur_buf], eax |
657 | mov [ntfs_cur_buf], eax |
658 | mov ecx, [ntfs_attr_list] |
658 | mov ecx, [ntfs_attr_list] |
659 | push esi edx |
659 | push esi edx |
660 | call .doreadattr |
660 | call .doreadattr |
661 | pop edx esi |
661 | pop edx esi |
662 | mov ebp, [ntfs_cur_read] |
662 | mov ebp, [ntfs_cur_read] |
663 | pop dword [ntfs_attr_size+4] |
663 | pop dword [ntfs_attr_size+4] |
664 | pop dword [ntfs_attr_size] |
664 | pop dword [ntfs_attr_size] |
665 | pop [ntfs_cur_buf] |
665 | pop [ntfs_cur_buf] |
666 | pop [ntfs_cur_read] |
666 | pop [ntfs_cur_read] |
667 | pop [ntfs_cur_size] |
667 | pop [ntfs_cur_size] |
668 | pop [ntfs_cur_offs] |
668 | pop [ntfs_cur_offs] |
669 | jc .errret |
669 | jc .errret |
670 | add ebp, ntfs_attrlist_buf+0x200-0x1A |
670 | add ebp, ntfs_attrlist_buf+0x200-0x1A |
671 | cmp [ntfs_cur_iRecord], 0 |
671 | cmp [ntfs_cur_iRecord], 0 |
672 | jnz .scanliststart |
672 | jnz .scanliststart |
673 | add ebp, ntfs_attrlist_mft_buf-ntfs_attrlist_buf |
673 | add ebp, ntfs_attrlist_mft_buf-ntfs_attrlist_buf |
674 | jmp .scanliststart |
674 | jmp .scanliststart |
675 | 675 | ||
676 | .doreadattr: |
676 | .doreadattr: |
677 | mov [ntfs_bCanContinue], 0 |
677 | mov [ntfs_bCanContinue], 0 |
678 | cmp byte [ecx+8], 0 |
678 | cmp byte [ecx+8], 0 |
679 | jnz .nonresident |
679 | jnz .nonresident |
680 | mov eax, [ecx+10h] ; length |
680 | mov eax, [ecx+10h] ; length |
681 | mov esi, eax |
681 | mov esi, eax |
682 | mov edx, [ntfs_cur_offs] |
682 | mov edx, [ntfs_cur_offs] |
683 | shr eax, 9 |
683 | shr eax, 9 |
684 | cmp eax, edx |
684 | cmp eax, edx |
685 | jb .okret |
685 | jb .okret |
686 | shl edx, 9 |
686 | shl edx, 9 |
687 | sub esi, edx |
687 | sub esi, edx |
688 | movzx eax, word [ecx+14h] |
688 | movzx eax, word [ecx+14h] |
689 | add edx, eax |
689 | add edx, eax |
690 | add edx, ecx ; edx -> data |
690 | add edx, ecx ; edx -> data |
691 | mov eax, [ntfs_cur_size] |
691 | mov eax, [ntfs_cur_size] |
692 | cmp eax, (0xFFFFFFFF shr 9)+1 |
692 | cmp eax, (0xFFFFFFFF shr 9)+1 |
693 | jbe @f |
693 | jbe @f |
694 | mov eax, (0xFFFFFFFF shr 9)+1 |
694 | mov eax, (0xFFFFFFFF shr 9)+1 |
695 | @@: |
695 | @@: |
696 | shl eax, 9 |
696 | shl eax, 9 |
697 | cmp eax, esi |
697 | cmp eax, esi |
698 | jbe @f |
698 | jbe @f |
699 | mov eax, esi |
699 | mov eax, esi |
700 | @@: |
700 | @@: |
701 | ; eax = length, edx -> data |
701 | ; eax = length, edx -> data |
702 | mov [ntfs_cur_read], eax |
702 | mov [ntfs_cur_read], eax |
703 | mov ecx, eax |
703 | mov ecx, eax |
704 | mov eax, edx |
704 | mov eax, edx |
705 | mov ebx, [ntfs_cur_buf] |
705 | mov ebx, [ntfs_cur_buf] |
706 | call memmove |
706 | call memmove |
707 | and [ntfs_cur_size], 0 ; CF=0 |
707 | and [ntfs_cur_size], 0 ; CF=0 |
708 | ret |
708 | ret |
709 | .nonresident: |
709 | .nonresident: |
710 | ; Not all auxiliary records contain correct FileSize info |
710 | ; Not all auxiliary records contain correct FileSize info |
711 | mov eax, dword [ntfs_attr_size] |
711 | mov eax, dword [ntfs_attr_size] |
712 | mov edx, dword [ntfs_attr_size+4] |
712 | mov edx, dword [ntfs_attr_size+4] |
713 | push eax |
713 | push eax |
714 | and eax, edx |
714 | and eax, edx |
715 | cmp eax, -1 |
715 | cmp eax, -1 |
716 | pop eax |
716 | pop eax |
717 | jnz @f |
717 | jnz @f |
718 | mov eax, [ecx+30h] ; FileSize |
718 | mov eax, [ecx+30h] ; FileSize |
719 | mov edx, [ecx+34h] |
719 | mov edx, [ecx+34h] |
720 | mov dword [ntfs_attr_size], eax |
720 | mov dword [ntfs_attr_size], eax |
721 | mov dword [ntfs_attr_size+4], edx |
721 | mov dword [ntfs_attr_size+4], edx |
722 | @@: |
722 | @@: |
723 | add eax, 0x1FF |
723 | add eax, 0x1FF |
724 | adc edx, 0 |
724 | adc edx, 0 |
725 | shrd eax, edx, 9 |
725 | shrd eax, edx, 9 |
726 | sub eax, [ntfs_cur_offs] |
726 | sub eax, [ntfs_cur_offs] |
727 | ja @f |
727 | ja @f |
728 | ; return with nothing read |
728 | ; return with nothing read |
729 | and [ntfs_cur_size], 0 |
729 | and [ntfs_cur_size], 0 |
730 | .okret: |
730 | .okret: |
731 | clc |
731 | clc |
732 | ret |
732 | ret |
733 | @@: |
733 | @@: |
734 | ; reduce read length |
734 | ; reduce read length |
735 | and [ntfs_cur_tail], 0 |
735 | and [ntfs_cur_tail], 0 |
736 | cmp [ntfs_cur_size], eax |
736 | cmp [ntfs_cur_size], eax |
737 | jb @f |
737 | jb @f |
738 | mov [ntfs_cur_size], eax |
738 | mov [ntfs_cur_size], eax |
739 | mov eax, dword [ntfs_attr_size] |
739 | mov eax, dword [ntfs_attr_size] |
740 | and eax, 0x1FF |
740 | and eax, 0x1FF |
741 | mov [ntfs_cur_tail], eax |
741 | mov [ntfs_cur_tail], eax |
742 | @@: |
742 | @@: |
743 | cmp [ntfs_cur_size], 0 |
743 | cmp [ntfs_cur_size], 0 |
744 | jz .okret |
744 | jz .okret |
745 | mov eax, [ntfs_cur_offs] |
745 | mov eax, [ntfs_cur_offs] |
746 | xor edx, edx |
746 | xor edx, edx |
747 | div [ntfs_data.sectors_per_cluster] |
747 | div [ntfs_data.sectors_per_cluster] |
748 | sub eax, [ecx+10h] ; first_vbo |
748 | sub eax, [ecx+10h] ; first_vbo |
749 | jb .okret |
749 | jb .okret |
750 | ; eax = cluster, edx = starting sector |
750 | ; eax = cluster, edx = starting sector |
751 | sub esp, 10h |
751 | sub esp, 10h |
752 | movzx esi, word [ecx+20h] ; mcb_info_ofs |
752 | movzx esi, word [ecx+20h] ; mcb_info_ofs |
753 | add esi, ecx |
753 | add esi, ecx |
754 | xor ebp, ebp |
754 | xor ebp, ebp |
755 | .readloop: |
755 | .readloop: |
756 | call ntfs_decode_mcb_entry |
756 | call ntfs_decode_mcb_entry |
757 | jnc .break |
757 | jnc .break |
758 | add ebp, [esp+8] |
758 | add ebp, [esp+8] |
759 | sub eax, [esp] |
759 | sub eax, [esp] |
760 | jae .readloop |
760 | jae .readloop |
761 | push ecx |
761 | push ecx |
762 | push eax |
762 | push eax |
763 | add eax, [esp+8] |
763 | add eax, [esp+8] |
764 | add eax, ebp |
764 | add eax, ebp |
765 | imul eax, [ntfs_data.sectors_per_cluster] |
765 | imul eax, [ntfs_data.sectors_per_cluster] |
766 | add eax, edx |
766 | add eax, edx |
767 | add eax, [PARTITION_START] |
767 | add eax, [PARTITION_START] |
768 | pop ecx |
768 | pop ecx |
769 | neg ecx |
769 | neg ecx |
770 | imul ecx, [ntfs_data.sectors_per_cluster] |
770 | imul ecx, [ntfs_data.sectors_per_cluster] |
771 | sub ecx, edx |
771 | sub ecx, edx |
772 | cmp ecx, [ntfs_cur_size] |
772 | cmp ecx, [ntfs_cur_size] |
773 | jb @f |
773 | jb @f |
774 | mov ecx, [ntfs_cur_size] |
774 | mov ecx, [ntfs_cur_size] |
775 | @@: |
775 | @@: |
776 | mov ebx, [ntfs_cur_buf] |
776 | mov ebx, [ntfs_cur_buf] |
777 | @@: |
777 | @@: |
778 | call hd_read |
778 | call hd_read |
779 | cmp [hd_error], 0 |
779 | cmp [hd_error], 0 |
780 | jnz .errread2 |
780 | jnz .errread2 |
781 | add ebx, 0x200 |
781 | add ebx, 0x200 |
782 | mov [ntfs_cur_buf], ebx |
782 | mov [ntfs_cur_buf], ebx |
783 | inc eax |
783 | inc eax |
784 | add [ntfs_cur_read], 0x200 |
784 | add [ntfs_cur_read], 0x200 |
785 | dec [ntfs_cur_size] |
785 | dec [ntfs_cur_size] |
786 | inc [ntfs_cur_offs] |
786 | inc [ntfs_cur_offs] |
787 | loop @b |
787 | loop @b |
788 | pop ecx |
788 | pop ecx |
789 | xor eax, eax |
789 | xor eax, eax |
790 | xor edx, edx |
790 | xor edx, edx |
791 | cmp [ntfs_cur_size], 0 |
791 | cmp [ntfs_cur_size], 0 |
792 | jnz .readloop |
792 | jnz .readloop |
793 | add esp, 10h |
793 | add esp, 10h |
794 | mov eax, [ntfs_cur_tail] |
794 | mov eax, [ntfs_cur_tail] |
795 | test eax, eax |
795 | test eax, eax |
796 | jz @f |
796 | jz @f |
797 | sub eax, 0x200 |
797 | sub eax, 0x200 |
798 | add [ntfs_cur_read], eax |
798 | add [ntfs_cur_read], eax |
799 | @@: |
799 | @@: |
800 | clc |
800 | clc |
801 | ret |
801 | ret |
802 | .errread2: |
802 | .errread2: |
803 | pop ecx |
803 | pop ecx |
804 | add esp, 10h |
804 | add esp, 10h |
805 | stc |
805 | stc |
806 | ret |
806 | ret |
807 | .break: |
807 | .break: |
808 | add esp, 10h ; CF=0 |
808 | add esp, 10h ; CF=0 |
809 | mov [ntfs_bCanContinue], 1 |
809 | mov [ntfs_bCanContinue], 1 |
810 | ret |
810 | ret |
811 | 811 | ||
812 | ntfs_read_file_record: |
812 | ntfs_read_file_record: |
813 | ; in: eax=iRecord |
813 | ; in: eax=iRecord |
814 | ; out: [ntfs_data.frs_buffer] contains information |
814 | ; out: [ntfs_data.frs_buffer] contains information |
815 | ; eax=0 - failed, eax=1 - success |
815 | ; eax=0 - failed, eax=1 - success |
816 | ; Read attr $DATA of $Mft, starting from eax*[ntfs_data.frs_size] |
816 | ; Read attr $DATA of $Mft, starting from eax*[ntfs_data.frs_size] |
817 | push ecx edx |
817 | push ecx edx |
818 | mov ecx, [ntfs_data.frs_size] |
818 | mov ecx, [ntfs_data.frs_size] |
819 | mul ecx |
819 | mul ecx |
820 | shrd eax, edx, 9 |
820 | shrd eax, edx, 9 |
821 | shr edx, 9 |
821 | shr edx, 9 |
822 | jnz .err |
822 | jnz .err |
823 | push [ntfs_attr_iRecord] |
823 | push [ntfs_attr_iRecord] |
824 | push [ntfs_attr_iBaseRecord] |
824 | push [ntfs_attr_iBaseRecord] |
825 | push [ntfs_attr_offs] |
825 | push [ntfs_attr_offs] |
826 | push [ntfs_attr_list] |
826 | push [ntfs_attr_list] |
827 | push dword [ntfs_attr_size+4] |
827 | push dword [ntfs_attr_size+4] |
828 | push dword [ntfs_attr_size] |
828 | push dword [ntfs_attr_size] |
829 | push [ntfs_cur_iRecord] |
829 | push [ntfs_cur_iRecord] |
830 | push [ntfs_cur_attr] |
830 | push [ntfs_cur_attr] |
831 | push [ntfs_cur_offs] |
831 | push [ntfs_cur_offs] |
832 | push [ntfs_cur_size] |
832 | push [ntfs_cur_size] |
833 | push [ntfs_cur_buf] |
833 | push [ntfs_cur_buf] |
834 | push [ntfs_cur_read] |
834 | push [ntfs_cur_read] |
835 | mov [ntfs_cur_attr], 0x80 ; $DATA |
835 | mov [ntfs_cur_attr], 0x80 ; $DATA |
836 | and [ntfs_cur_iRecord], 0 ; $Mft |
836 | and [ntfs_cur_iRecord], 0 ; $Mft |
837 | mov [ntfs_cur_offs], eax |
837 | mov [ntfs_cur_offs], eax |
838 | shr ecx, 9 |
838 | shr ecx, 9 |
839 | mov [ntfs_cur_size], ecx |
839 | mov [ntfs_cur_size], ecx |
840 | mov eax, [ntfs_data.frs_buffer] |
840 | mov eax, [ntfs_data.frs_buffer] |
841 | mov [ntfs_cur_buf], eax |
841 | mov [ntfs_cur_buf], eax |
842 | call ntfs_read_attr |
842 | call ntfs_read_attr |
843 | mov eax, [ntfs_cur_read] |
843 | mov eax, [ntfs_cur_read] |
844 | pop [ntfs_cur_read] |
844 | pop [ntfs_cur_read] |
845 | pop [ntfs_cur_buf] |
845 | pop [ntfs_cur_buf] |
846 | pop [ntfs_cur_size] |
846 | pop [ntfs_cur_size] |
847 | pop [ntfs_cur_offs] |
847 | pop [ntfs_cur_offs] |
848 | pop [ntfs_cur_attr] |
848 | pop [ntfs_cur_attr] |
849 | pop [ntfs_cur_iRecord] |
849 | pop [ntfs_cur_iRecord] |
850 | pop dword [ntfs_attr_size] |
850 | pop dword [ntfs_attr_size] |
851 | pop dword [ntfs_attr_size+4] |
851 | pop dword [ntfs_attr_size+4] |
852 | pop [ntfs_attr_list] |
852 | pop [ntfs_attr_list] |
853 | pop [ntfs_attr_offs] |
853 | pop [ntfs_attr_offs] |
854 | pop [ntfs_attr_iBaseRecord] |
854 | pop [ntfs_attr_iBaseRecord] |
855 | pop [ntfs_attr_iRecord] |
855 | pop [ntfs_attr_iRecord] |
856 | pop edx ecx |
856 | pop edx ecx |
857 | jc .errret |
857 | jc .errret |
858 | cmp eax, [ntfs_data.frs_size] |
858 | cmp eax, [ntfs_data.frs_size] |
859 | jnz .errret |
859 | jnz .errret |
860 | mov eax, [ntfs_data.frs_buffer] |
860 | mov eax, [ntfs_data.frs_buffer] |
861 | cmp dword [eax], 'FILE' |
861 | cmp dword [eax], 'FILE' |
862 | jnz .errret |
862 | jnz .errret |
863 | push ebx |
863 | push ebx |
864 | mov ebx, eax |
864 | mov ebx, eax |
865 | call ntfs_restore_usa_frs |
865 | call ntfs_restore_usa_frs |
866 | pop ebx |
866 | pop ebx |
867 | setnc al |
867 | setnc al |
868 | movzx eax, al |
868 | movzx eax, al |
869 | .ret: |
869 | .ret: |
870 | ret |
870 | ret |
871 | .err: |
871 | .err: |
872 | pop edx ecx |
872 | pop edx ecx |
873 | .errret: |
873 | .errret: |
874 | xor eax, eax |
874 | xor eax, eax |
875 | ret |
875 | ret |
876 | 876 | ||
877 | ntfs_restore_usa_frs: |
877 | ntfs_restore_usa_frs: |
878 | mov eax, [ntfs_data.frs_size] |
878 | mov eax, [ntfs_data.frs_size] |
879 | ntfs_restore_usa: |
879 | ntfs_restore_usa: |
880 | pushad |
880 | pushad |
881 | shr eax, 9 |
881 | shr eax, 9 |
882 | mov ecx, eax |
882 | mov ecx, eax |
883 | inc eax |
883 | inc eax |
884 | cmp [ebx+6], ax |
884 | cmp [ebx+6], ax |
885 | jnz .err |
885 | jnz .err |
886 | movzx eax, word [ebx+4] |
886 | movzx eax, word [ebx+4] |
887 | lea esi, [eax+ebx] |
887 | lea esi, [eax+ebx] |
888 | lodsw |
888 | lodsw |
889 | mov edx, eax |
889 | mov edx, eax |
890 | lea edi, [ebx+0x1FE] |
890 | lea edi, [ebx+0x1FE] |
891 | @@: |
891 | @@: |
892 | cmp [edi], dx |
892 | cmp [edi], dx |
893 | jnz .err |
893 | jnz .err |
894 | lodsw |
894 | lodsw |
895 | stosw |
895 | stosw |
896 | add edi, 0x1FE |
896 | add edi, 0x1FE |
897 | loop @b |
897 | loop @b |
898 | popad |
898 | popad |
899 | clc |
899 | clc |
900 | ret |
900 | ret |
901 | .err: |
901 | .err: |
902 | popad |
902 | popad |
903 | stc |
903 | stc |
904 | ret |
904 | ret |
905 | 905 | ||
906 | ntfs_decode_mcb_entry: |
906 | ntfs_decode_mcb_entry: |
907 | push eax ecx edi |
907 | push eax ecx edi |
908 | lea edi, [esp+16] |
908 | lea edi, [esp+16] |
909 | xor eax, eax |
909 | xor eax, eax |
910 | lodsb |
910 | lodsb |
911 | test al, al |
911 | test al, al |
912 | jz .end |
912 | jz .end |
913 | mov ecx, eax |
913 | mov ecx, eax |
914 | and ecx, 0xF |
914 | and ecx, 0xF |
915 | cmp ecx, 8 |
915 | cmp ecx, 8 |
916 | ja .end |
916 | ja .end |
917 | push ecx |
917 | push ecx |
918 | rep movsb |
918 | rep movsb |
919 | pop ecx |
919 | pop ecx |
920 | sub ecx, 8 |
920 | sub ecx, 8 |
921 | neg ecx |
921 | neg ecx |
922 | cmp byte [esi-1], 80h |
922 | cmp byte [esi-1], 80h |
923 | jae .end |
923 | jae .end |
924 | push eax |
924 | push eax |
925 | xor eax, eax |
925 | xor eax, eax |
926 | rep stosb |
926 | rep stosb |
927 | pop ecx |
927 | pop ecx |
928 | shr ecx, 4 |
928 | shr ecx, 4 |
929 | cmp ecx, 8 |
929 | cmp ecx, 8 |
930 | ja .end |
930 | ja .end |
931 | push ecx |
931 | push ecx |
932 | rep movsb |
932 | rep movsb |
933 | pop ecx |
933 | pop ecx |
934 | sub ecx, 8 |
934 | sub ecx, 8 |
935 | neg ecx |
935 | neg ecx |
936 | cmp byte [esi-1], 80h |
936 | cmp byte [esi-1], 80h |
937 | cmc |
937 | cmc |
938 | sbb eax, eax |
938 | sbb eax, eax |
939 | rep stosb |
939 | rep stosb |
940 | stc |
940 | stc |
941 | .end: |
941 | .end: |
942 | pop edi ecx eax |
942 | pop edi ecx eax |
943 | ret |
943 | ret |
944 | 944 | ||
945 | unichar_toupper: |
945 | unichar_toupper: |
946 | push eax |
946 | push eax |
947 | call uni2ansi_char |
947 | call uni2ansi_char |
948 | cmp al, '_' |
948 | cmp al, '_' |
949 | jz .unk |
949 | jz .unk |
950 | add esp, 4 |
950 | add esp, 4 |
951 | call char_toupper |
951 | call char_toupper |
952 | jmp ansi2uni_char |
952 | jmp ansi2uni_char |
953 | .unk: |
953 | .unk: |
954 | pop eax |
954 | pop eax |
955 | ret |
955 | ret |
956 | 956 | ||
957 | ntfs_find_lfn: |
957 | ntfs_find_lfn: |
958 | ; in: esi+ebp -> name |
958 | ; in: esi+ebp -> name |
959 | ; out: CF=1 - file not found |
959 | ; out: CF=1 - file not found |
960 | ; else CF=0, [ntfs_cur_iRecord] valid, eax->record in parent directory |
960 | ; else CF=0, [ntfs_cur_iRecord] valid, eax->record in parent directory |
961 | mov [ntfs_cur_iRecord], 5 ; start parse from root cluster |
961 | mov [ntfs_cur_iRecord], 5 ; start parse from root cluster |
962 | .doit2: |
962 | .doit2: |
963 | mov [ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
963 | mov [ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
964 | and [ntfs_cur_offs], 0 |
964 | and [ntfs_cur_offs], 0 |
965 | mov eax, [ntfs_data.cur_index_size] |
965 | mov eax, [ntfs_data.cur_index_size] |
966 | mov [ntfs_cur_size], eax |
966 | mov [ntfs_cur_size], eax |
967 | mov eax, [ntfs_data.cur_index_buf] |
967 | mov eax, [ntfs_data.cur_index_buf] |
968 | mov [ntfs_cur_buf], eax |
968 | mov [ntfs_cur_buf], eax |
969 | call ntfs_read_attr |
969 | call ntfs_read_attr |
970 | jnc @f |
970 | jnc @f |
971 | .ret: |
971 | .ret: |
972 | ret |
972 | ret |
973 | @@: |
973 | @@: |
974 | cmp [ntfs_cur_read], 0x20 |
974 | cmp [ntfs_cur_read], 0x20 |
975 | jc .ret |
975 | jc .ret |
976 | pushad |
976 | pushad |
977 | mov esi, [ntfs_data.cur_index_buf] |
977 | mov esi, [ntfs_data.cur_index_buf] |
978 | mov eax, [esi+14h] |
978 | mov eax, [esi+14h] |
979 | add eax, 10h |
979 | add eax, 10h |
980 | cmp [ntfs_cur_read], eax |
980 | cmp [ntfs_cur_read], eax |
981 | jae .readok1 |
981 | jae .readok1 |
982 | add eax, 1FFh |
982 | add eax, 1FFh |
983 | shr eax, 9 |
983 | shr eax, 9 |
984 | cmp eax, [ntfs_data.cur_index_size] |
984 | cmp eax, [ntfs_data.cur_index_size] |
985 | ja @f |
985 | ja @f |
986 | .stc_ret: |
986 | .stc_ret: |
987 | popad |
987 | popad |
988 | stc |
988 | stc |
989 | ret |
989 | ret |
990 | @@: |
990 | @@: |
991 | ; reallocate |
991 | ; reallocate |
992 | push eax |
992 | push eax |
993 | push [ntfs_data.cur_index_buf] |
993 | push [ntfs_data.cur_index_buf] |
994 | call kernel_free |
994 | call kernel_free |
995 | pop eax |
995 | pop eax |
996 | mov [ntfs_data.cur_index_size], eax |
996 | mov [ntfs_data.cur_index_size], eax |
997 | push eax |
997 | push eax |
998 | call kernel_alloc |
998 | call kernel_alloc |
999 | test eax, eax |
999 | test eax, eax |
1000 | jnz @f |
1000 | jnz @f |
1001 | and [ntfs_data.cur_index_size], 0 |
1001 | and [ntfs_data.cur_index_size], 0 |
1002 | and [ntfs_data.cur_index_buf], 0 |
1002 | and [ntfs_data.cur_index_buf], 0 |
1003 | jmp .stc_ret |
1003 | jmp .stc_ret |
1004 | @@: |
1004 | @@: |
1005 | mov [ntfs_data.cur_index_buf], eax |
1005 | mov [ntfs_data.cur_index_buf], eax |
1006 | popad |
1006 | popad |
1007 | jmp .doit2 |
1007 | jmp .doit2 |
1008 | .readok1: |
1008 | .readok1: |
1009 | mov ebp, [esi+8] ; subnode_size |
1009 | mov ebp, [esi+8] ; subnode_size |
1010 | shr ebp, 9 |
1010 | shr ebp, 9 |
1011 | cmp ebp, [ntfs_data.cur_index_size] |
1011 | cmp ebp, [ntfs_data.cur_index_size] |
1012 | jbe .ok2 |
1012 | jbe .ok2 |
1013 | push esi ebp |
1013 | push esi ebp |
1014 | push ebp |
1014 | push ebp |
1015 | call kernel_alloc |
1015 | call kernel_alloc |
1016 | pop ebp esi |
1016 | pop ebp esi |
1017 | test eax, eax |
1017 | test eax, eax |
1018 | jz .stc_ret |
1018 | jz .stc_ret |
1019 | mov edi, eax |
1019 | mov edi, eax |
1020 | mov ecx, [ntfs_data.cur_index_size] |
1020 | mov ecx, [ntfs_data.cur_index_size] |
1021 | shl ecx, 9-2 |
1021 | shl ecx, 9-2 |
1022 | rep movsd |
1022 | rep movsd |
1023 | mov esi, eax |
1023 | mov esi, eax |
1024 | mov [ntfs_data.cur_index_size], ebp |
1024 | mov [ntfs_data.cur_index_size], ebp |
1025 | push esi ebp |
1025 | push esi ebp |
1026 | push [ntfs_data.cur_index_buf] |
1026 | push [ntfs_data.cur_index_buf] |
1027 | call kernel_free |
1027 | call kernel_free |
1028 | pop ebp esi |
1028 | pop ebp esi |
1029 | mov [ntfs_data.cur_index_buf], esi |
1029 | mov [ntfs_data.cur_index_buf], esi |
1030 | .ok2: |
1030 | .ok2: |
1031 | add esi, 10h |
1031 | add esi, 10h |
1032 | mov edi, [esp+4] |
1032 | mov edi, [esp+4] |
1033 | ; edi -> name, esi -> current index data, ebp = subnode size |
1033 | ; edi -> name, esi -> current index data, ebp = subnode size |
1034 | .scanloop: |
1034 | .scanloop: |
1035 | add esi, [esi] |
1035 | add esi, [esi] |
1036 | .scanloopint: |
1036 | .scanloopint: |
1037 | test byte [esi+0Ch], 2 |
1037 | test byte [esi+0Ch], 2 |
1038 | jnz .subnode |
1038 | jnz .subnode |
1039 | push esi |
1039 | push esi |
1040 | add esi, 0x52 |
1040 | add esi, 0x52 |
1041 | movzx ecx, byte [esi-2] |
1041 | movzx ecx, byte [esi-2] |
1042 | push edi |
1042 | push edi |
1043 | @@: |
1043 | @@: |
1044 | lodsw |
1044 | lodsw |
1045 | call unichar_toupper |
1045 | call unichar_toupper |
1046 | push eax |
1046 | push eax |
1047 | mov al, [edi] |
1047 | mov al, [edi] |
1048 | inc edi |
1048 | inc edi |
1049 | cmp al, '/' |
1049 | cmp al, '/' |
1050 | jz .slash |
1050 | jz .slash |
1051 | call char_toupper |
1051 | call char_toupper |
1052 | call ansi2uni_char |
1052 | call ansi2uni_char |
1053 | cmp ax, [esp] |
1053 | cmp ax, [esp] |
1054 | pop eax |
1054 | pop eax |
1055 | loopz @b |
1055 | loopz @b |
1056 | jz .found |
1056 | jz .found |
1057 | pop edi |
1057 | pop edi |
1058 | pop esi |
1058 | pop esi |
1059 | jb .subnode |
1059 | jb .subnode |
1060 | .scanloopcont: |
1060 | .scanloopcont: |
1061 | movzx eax, word [esi+8] |
1061 | movzx eax, word [esi+8] |
1062 | add esi, eax |
1062 | add esi, eax |
1063 | jmp .scanloopint |
1063 | jmp .scanloopint |
1064 | .slash: |
1064 | .slash: |
1065 | pop eax |
1065 | pop eax |
1066 | pop edi |
1066 | pop edi |
1067 | pop esi |
1067 | pop esi |
1068 | .subnode: |
1068 | .subnode: |
1069 | test byte [esi+0Ch], 1 |
1069 | test byte [esi+0Ch], 1 |
1070 | jz .notfound |
1070 | jz .notfound |
1071 | movzx eax, word [esi+8] |
1071 | movzx eax, word [esi+8] |
1072 | mov eax, [esi+eax-8] |
1072 | mov eax, [esi+eax-8] |
1073 | mul [ntfs_data.sectors_per_cluster] |
1073 | mul [ntfs_data.sectors_per_cluster] |
1074 | mov [ntfs_cur_offs], eax |
1074 | mov [ntfs_cur_offs], eax |
1075 | mov [ntfs_cur_attr], 0xA0 ; $INDEX_ALLOCATION |
1075 | mov [ntfs_cur_attr], 0xA0 ; $INDEX_ALLOCATION |
1076 | mov [ntfs_cur_size], ebp |
1076 | mov [ntfs_cur_size], ebp |
1077 | mov eax, [ntfs_data.cur_index_buf] |
1077 | mov eax, [ntfs_data.cur_index_buf] |
1078 | mov esi, eax |
1078 | mov esi, eax |
1079 | mov [ntfs_cur_buf], eax |
1079 | mov [ntfs_cur_buf], eax |
1080 | call ntfs_read_attr |
1080 | call ntfs_read_attr |
1081 | mov eax, ebp |
1081 | mov eax, ebp |
1082 | shl eax, 9 |
1082 | shl eax, 9 |
1083 | cmp [ntfs_cur_read], eax |
1083 | cmp [ntfs_cur_read], eax |
1084 | jnz .notfound |
1084 | jnz .notfound |
1085 | cmp dword [esi], 'INDX' |
1085 | cmp dword [esi], 'INDX' |
1086 | jnz .notfound |
1086 | jnz .notfound |
1087 | mov ebx, esi |
1087 | mov ebx, esi |
1088 | call ntfs_restore_usa |
1088 | call ntfs_restore_usa |
1089 | jc .notfound |
1089 | jc .notfound |
1090 | add esi, 0x18 |
1090 | add esi, 0x18 |
1091 | jmp .scanloop |
1091 | jmp .scanloop |
1092 | .notfound: |
1092 | .notfound: |
1093 | popad |
1093 | popad |
1094 | stc |
1094 | stc |
1095 | ret |
1095 | ret |
1096 | .found: |
1096 | .found: |
1097 | cmp byte [edi], 0 |
1097 | cmp byte [edi], 0 |
1098 | jz .done |
1098 | jz .done |
1099 | cmp byte [edi], '/' |
1099 | cmp byte [edi], '/' |
1100 | jz .next |
1100 | jz .next |
1101 | pop edi |
1101 | pop edi |
1102 | pop esi |
1102 | pop esi |
1103 | jmp .scanloopcont |
1103 | jmp .scanloopcont |
1104 | .done: |
1104 | .done: |
1105 | .next: |
1105 | .next: |
1106 | pop esi |
1106 | pop esi |
1107 | pop esi |
1107 | pop esi |
1108 | mov eax, [esi] |
1108 | mov eax, [esi] |
1109 | mov [ntfs_cur_iRecord], eax |
1109 | mov [ntfs_cur_iRecord], eax |
1110 | mov [esp+1Ch], esi |
1110 | mov [esp+1Ch], esi |
1111 | mov [esp+4], edi |
1111 | mov [esp+4], edi |
1112 | popad |
1112 | popad |
1113 | inc esi |
1113 | inc esi |
1114 | cmp byte [esi-1], 0 |
1114 | cmp byte [esi-1], 0 |
1115 | jnz .doit2 |
1115 | jnz .doit2 |
1116 | test ebp, ebp |
1116 | test ebp, ebp |
1117 | jz @f |
1117 | jz @f |
1118 | mov esi, ebp |
1118 | mov esi, ebp |
1119 | xor ebp, ebp |
1119 | xor ebp, ebp |
1120 | jmp .doit2 |
1120 | jmp .doit2 |
1121 | @@: |
1121 | @@: |
1122 | ret |
1122 | ret |
1123 | 1123 | ||
1124 | ;---------------------------------------------------------------- |
1124 | ;---------------------------------------------------------------- |
1125 | ; |
1125 | ; |
1126 | ; ntfs_HdRead - read NTFS hard disk |
1126 | ; ntfs_HdRead - read NTFS hard disk |
1127 | ; |
1127 | ; |
1128 | ; esi points to filename |
1128 | ; esi points to filename |
1129 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
1129 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
1130 | ; may be ebx=0 - start from first byte |
1130 | ; may be ebx=0 - start from first byte |
1131 | ; ecx number of bytes to read, 0+ |
1131 | ; ecx number of bytes to read, 0+ |
1132 | ; edx mem location to return data |
1132 | ; edx mem location to return data |
1133 | ; |
1133 | ; |
1134 | ; ret ebx = bytes read or 0xffffffff file not found |
1134 | ; ret ebx = bytes read or 0xffffffff file not found |
1135 | ; eax = 0 ok read or other = errormsg |
1135 | ; eax = 0 ok read or other = errormsg |
1136 | ; |
1136 | ; |
1137 | ;-------------------------------------------------------------- |
1137 | ;-------------------------------------------------------------- |
1138 | ntfs_HdRead: |
1138 | ntfs_HdRead: |
1139 | cmp byte [esi], 0 |
1139 | cmp byte [esi], 0 |
1140 | jnz @f |
1140 | jnz @f |
1141 | or ebx, -1 |
1141 | or ebx, -1 |
1142 | push ERROR_ACCESS_DENIED |
1142 | movi eax, ERROR_ACCESS_DENIED |
1143 | pop eax |
- | |
1144 | ret |
1143 | ret |
1145 | @@: |
1144 | @@: |
1146 | call ntfs_find_lfn |
1145 | call ntfs_find_lfn |
1147 | jnc .found |
1146 | jnc .found |
1148 | or ebx, -1 |
1147 | or ebx, -1 |
1149 | push ERROR_FILE_NOT_FOUND |
1148 | movi eax, ERROR_FILE_NOT_FOUND |
1150 | pop eax |
- | |
1151 | ret |
1149 | ret |
1152 | .found: |
1150 | .found: |
1153 | mov [ntfs_cur_attr], 0x80 ; $DATA |
1151 | mov [ntfs_cur_attr], 0x80 ; $DATA |
1154 | and [ntfs_cur_offs], 0 |
1152 | and [ntfs_cur_offs], 0 |
1155 | and [ntfs_cur_size], 0 |
1153 | and [ntfs_cur_size], 0 |
1156 | call ntfs_read_attr |
1154 | call ntfs_read_attr |
1157 | jnc @f |
1155 | jnc @f |
1158 | or ebx, -1 |
1156 | or ebx, -1 |
1159 | push ERROR_ACCESS_DENIED |
1157 | movi eax, ERROR_ACCESS_DENIED |
1160 | pop eax |
- | |
1161 | ret |
1158 | ret |
1162 | @@: |
1159 | @@: |
1163 | pushad |
1160 | pushad |
1164 | and dword [esp+10h], 0 |
1161 | and dword [esp+10h], 0 |
1165 | xor eax, eax |
1162 | xor eax, eax |
1166 | test ebx, ebx |
1163 | test ebx, ebx |
1167 | jz .zero1 |
1164 | jz .zero1 |
1168 | cmp dword [ebx+4], 0x200 |
1165 | cmp dword [ebx+4], 0x200 |
1169 | jb @f |
1166 | jb @f |
1170 | .eof0: |
1167 | .eof0: |
1171 | popad |
1168 | popad |
1172 | xor ebx, ebx |
1169 | xor ebx, ebx |
1173 | .eof: |
1170 | .eof: |
1174 | push ERROR_END_OF_FILE |
1171 | movi eax, ERROR_END_OF_FILE |
1175 | pop eax |
- | |
1176 | ret |
1172 | ret |
1177 | @@: |
1173 | @@: |
1178 | mov eax, [ebx] |
1174 | mov eax, [ebx] |
1179 | test eax, 0x1FF |
1175 | test eax, 0x1FF |
1180 | jz .alignedstart |
1176 | jz .alignedstart |
1181 | push edx |
1177 | push edx |
1182 | mov edx, [ebx+4] |
1178 | mov edx, [ebx+4] |
1183 | shrd eax, edx, 9 |
1179 | shrd eax, edx, 9 |
1184 | pop edx |
1180 | pop edx |
1185 | mov [ntfs_cur_offs], eax |
1181 | mov [ntfs_cur_offs], eax |
1186 | mov [ntfs_cur_size], 1 |
1182 | mov [ntfs_cur_size], 1 |
1187 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1183 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1188 | call ntfs_read_attr.continue |
1184 | call ntfs_read_attr.continue |
1189 | mov eax, [ebx] |
1185 | mov eax, [ebx] |
1190 | and eax, 0x1FF |
1186 | and eax, 0x1FF |
1191 | lea esi, [ntfs_bitmap_buf+eax] |
1187 | lea esi, [ntfs_bitmap_buf+eax] |
1192 | sub eax, [ntfs_cur_read] |
1188 | sub eax, [ntfs_cur_read] |
1193 | jae .eof0 |
1189 | jae .eof0 |
1194 | neg eax |
1190 | neg eax |
1195 | push ecx |
1191 | push ecx |
1196 | cmp ecx, eax |
1192 | cmp ecx, eax |
1197 | jb @f |
1193 | jb @f |
1198 | mov ecx, eax |
1194 | mov ecx, eax |
1199 | @@: |
1195 | @@: |
1200 | mov [esp+10h+4], ecx |
1196 | mov [esp+10h+4], ecx |
1201 | mov edi, edx |
1197 | mov edi, edx |
1202 | rep movsb |
1198 | rep movsb |
1203 | mov edx, edi |
1199 | mov edx, edi |
1204 | pop ecx |
1200 | pop ecx |
1205 | sub ecx, [esp+10h] |
1201 | sub ecx, [esp+10h] |
1206 | jnz @f |
1202 | jnz @f |
1207 | .retok: |
1203 | .retok: |
1208 | popad |
1204 | popad |
1209 | xor eax, eax |
1205 | xor eax, eax |
1210 | ret |
1206 | ret |
1211 | @@: |
1207 | @@: |
1212 | cmp [ntfs_cur_read], 0x200 |
1208 | cmp [ntfs_cur_read], 0x200 |
1213 | jz .alignedstart |
1209 | jz .alignedstart |
1214 | .eof_ebx: |
1210 | .eof_ebx: |
1215 | popad |
1211 | popad |
1216 | jmp .eof |
1212 | jmp .eof |
1217 | .alignedstart: |
1213 | .alignedstart: |
1218 | mov eax, [ebx] |
1214 | mov eax, [ebx] |
1219 | push edx |
1215 | push edx |
1220 | mov edx, [ebx+4] |
1216 | mov edx, [ebx+4] |
1221 | add eax, 511 |
1217 | add eax, 511 |
1222 | adc edx, 0 |
1218 | adc edx, 0 |
1223 | shrd eax, edx, 9 |
1219 | shrd eax, edx, 9 |
1224 | pop edx |
1220 | pop edx |
1225 | .zero1: |
1221 | .zero1: |
1226 | mov [ntfs_cur_offs], eax |
1222 | mov [ntfs_cur_offs], eax |
1227 | mov [ntfs_cur_buf], edx |
1223 | mov [ntfs_cur_buf], edx |
1228 | mov eax, ecx |
1224 | mov eax, ecx |
1229 | shr eax, 9 |
1225 | shr eax, 9 |
1230 | mov [ntfs_cur_size], eax |
1226 | mov [ntfs_cur_size], eax |
1231 | add eax, [ntfs_cur_offs] |
1227 | add eax, [ntfs_cur_offs] |
1232 | push eax |
1228 | push eax |
1233 | call ntfs_read_attr.continue |
1229 | call ntfs_read_attr.continue |
1234 | pop [ntfs_cur_offs] |
1230 | pop [ntfs_cur_offs] |
1235 | mov eax, [ntfs_cur_read] |
1231 | mov eax, [ntfs_cur_read] |
1236 | add [esp+10h], eax |
1232 | add [esp+10h], eax |
1237 | mov eax, ecx |
1233 | mov eax, ecx |
1238 | and eax, not 0x1FF |
1234 | and eax, not 0x1FF |
1239 | cmp [ntfs_cur_read], eax |
1235 | cmp [ntfs_cur_read], eax |
1240 | jnz .eof_ebx |
1236 | jnz .eof_ebx |
1241 | and ecx, 0x1FF |
1237 | and ecx, 0x1FF |
1242 | jz .retok |
1238 | jz .retok |
1243 | add edx, [ntfs_cur_read] |
1239 | add edx, [ntfs_cur_read] |
1244 | mov [ntfs_cur_size], 1 |
1240 | mov [ntfs_cur_size], 1 |
1245 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1241 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1246 | call ntfs_read_attr.continue |
1242 | call ntfs_read_attr.continue |
1247 | cmp [ntfs_cur_read], ecx |
1243 | cmp [ntfs_cur_read], ecx |
1248 | jb @f |
1244 | jb @f |
1249 | mov [ntfs_cur_read], ecx |
1245 | mov [ntfs_cur_read], ecx |
1250 | @@: |
1246 | @@: |
1251 | xchg ecx, [ntfs_cur_read] |
1247 | xchg ecx, [ntfs_cur_read] |
1252 | push ecx |
1248 | push ecx |
1253 | mov edi, edx |
1249 | mov edi, edx |
1254 | mov esi, ntfs_bitmap_buf |
1250 | mov esi, ntfs_bitmap_buf |
1255 | add [esp+10h+4], ecx |
1251 | add [esp+10h+4], ecx |
1256 | rep movsb |
1252 | rep movsb |
1257 | pop ecx |
1253 | pop ecx |
1258 | xor eax, eax |
1254 | xor eax, eax |
1259 | cmp ecx, [ntfs_cur_read] |
1255 | cmp ecx, [ntfs_cur_read] |
1260 | jz @f |
1256 | jz @f |
1261 | mov al, ERROR_END_OF_FILE |
1257 | mov al, ERROR_END_OF_FILE |
1262 | @@: |
1258 | @@: |
1263 | mov [esp+1Ch], eax |
1259 | mov [esp+1Ch], eax |
1264 | popad |
1260 | popad |
1265 | ret |
1261 | ret |
1266 | 1262 | ||
1267 | ;---------------------------------------------------------------- |
1263 | ;---------------------------------------------------------------- |
1268 | ; |
1264 | ; |
1269 | ; ntfs_HdReadFolder - read NTFS hard disk folder |
1265 | ; ntfs_HdReadFolder - read NTFS hard disk folder |
1270 | ; |
1266 | ; |
1271 | ; esi points to filename |
1267 | ; esi points to filename |
1272 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
1268 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
1273 | ; & flags (bitfields) |
1269 | ; & flags (bitfields) |
1274 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
1270 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
1275 | ; ecx number of blocks to read, 0+ |
1271 | ; ecx number of blocks to read, 0+ |
1276 | ; edx mem location to return data |
1272 | ; edx mem location to return data |
1277 | ; |
1273 | ; |
1278 | ; ret ebx = blocks read or 0xffffffff folder not found |
1274 | ; ret ebx = blocks read or 0xffffffff folder not found |
1279 | ; eax = 0 ok read or other = errormsg |
1275 | ; eax = 0 ok read or other = errormsg |
1280 | ; |
1276 | ; |
1281 | ;-------------------------------------------------------------- |
1277 | ;-------------------------------------------------------------- |
1282 | ntfs_HdReadFolder: |
1278 | ntfs_HdReadFolder: |
1283 | mov eax, 5 ; root cluster |
1279 | mov eax, 5 ; root cluster |
1284 | cmp byte [esi], 0 |
1280 | cmp byte [esi], 0 |
1285 | jz .doit |
1281 | jz .doit |
1286 | call ntfs_find_lfn |
1282 | call ntfs_find_lfn |
1287 | jnc .doit2 |
1283 | jnc .doit2 |
1288 | .notfound: |
1284 | .notfound: |
1289 | or ebx, -1 |
1285 | or ebx, -1 |
1290 | push ERROR_FILE_NOT_FOUND |
1286 | push ERROR_FILE_NOT_FOUND |
1291 | .pop_ret: |
1287 | .pop_ret: |
1292 | pop eax |
1288 | pop eax |
1293 | ret |
1289 | ret |
1294 | .doit: |
1290 | .doit: |
1295 | mov [ntfs_cur_iRecord], eax |
1291 | mov [ntfs_cur_iRecord], eax |
1296 | .doit2: |
1292 | .doit2: |
1297 | mov [ntfs_cur_attr], 0x10 ; $STANDARD_INFORMATION |
1293 | mov [ntfs_cur_attr], 0x10 ; $STANDARD_INFORMATION |
1298 | and [ntfs_cur_offs], 0 |
1294 | and [ntfs_cur_offs], 0 |
1299 | mov [ntfs_cur_size], 1 |
1295 | mov [ntfs_cur_size], 1 |
1300 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1296 | mov [ntfs_cur_buf], ntfs_bitmap_buf |
1301 | call ntfs_read_attr |
1297 | call ntfs_read_attr |
1302 | jc .notfound |
1298 | jc .notfound |
1303 | mov [ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1299 | mov [ntfs_cur_attr], 0x90 ; $INDEX_ROOT |
1304 | and [ntfs_cur_offs], 0 |
1300 | and [ntfs_cur_offs], 0 |
1305 | mov eax, [ntfs_data.cur_index_size] |
1301 | mov eax, [ntfs_data.cur_index_size] |
1306 | mov [ntfs_cur_size], eax |
1302 | mov [ntfs_cur_size], eax |
1307 | mov eax, [ntfs_data.cur_index_buf] |
1303 | mov eax, [ntfs_data.cur_index_buf] |
1308 | mov [ntfs_cur_buf], eax |
1304 | mov [ntfs_cur_buf], eax |
1309 | call ntfs_read_attr |
1305 | call ntfs_read_attr |
1310 | jnc .ok |
1306 | jnc .ok |
1311 | cmp [hd_error], 0 |
1307 | cmp [hd_error], 0 |
1312 | jz .notfound |
1308 | jz .notfound |
1313 | or ebx, -1 |
1309 | or ebx, -1 |
1314 | push 11 |
1310 | push 11 |
1315 | jmp .pop_ret |
1311 | jmp .pop_ret |
1316 | .ok: |
1312 | .ok: |
1317 | cmp [ntfs_cur_read], 0x20 |
1313 | cmp [ntfs_cur_read], 0x20 |
1318 | jae @f |
1314 | jae @f |
1319 | or ebx, -1 |
1315 | or ebx, -1 |
1320 | .fserr: |
1316 | .fserr: |
1321 | push ERROR_FAT_TABLE |
1317 | push ERROR_FAT_TABLE |
1322 | jmp .pop_ret |
1318 | jmp .pop_ret |
1323 | @@: |
1319 | @@: |
1324 | pushad |
1320 | pushad |
1325 | mov esi, [ntfs_data.cur_index_buf] |
1321 | mov esi, [ntfs_data.cur_index_buf] |
1326 | mov eax, [esi+14h] |
1322 | mov eax, [esi+14h] |
1327 | add eax, 10h |
1323 | add eax, 10h |
1328 | cmp [ntfs_cur_read], eax |
1324 | cmp [ntfs_cur_read], eax |
1329 | jae .readok1 |
1325 | jae .readok1 |
1330 | add eax, 1FFh |
1326 | add eax, 1FFh |
1331 | shr eax, 9 |
1327 | shr eax, 9 |
1332 | cmp eax, [ntfs_data.cur_index_size] |
1328 | cmp eax, [ntfs_data.cur_index_size] |
1333 | ja @f |
1329 | ja @f |
1334 | popad |
1330 | popad |
1335 | jmp .fserr |
1331 | jmp .fserr |
1336 | @@: |
1332 | @@: |
1337 | ; reallocate |
1333 | ; reallocate |
1338 | push eax |
1334 | push eax |
1339 | push [ntfs_data.cur_index_buf] |
1335 | push [ntfs_data.cur_index_buf] |
1340 | call kernel_free |
1336 | call kernel_free |
1341 | pop eax |
1337 | pop eax |
1342 | mov [ntfs_data.cur_index_size], eax |
1338 | mov [ntfs_data.cur_index_size], eax |
1343 | push eax |
1339 | push eax |
1344 | call kernel_alloc |
1340 | call kernel_alloc |
1345 | test eax, eax |
1341 | test eax, eax |
1346 | jnz @f |
1342 | jnz @f |
1347 | and [ntfs_data.cur_index_size], 0 |
1343 | and [ntfs_data.cur_index_size], 0 |
1348 | and [ntfs_data.cur_index_buf], 0 |
1344 | and [ntfs_data.cur_index_buf], 0 |
1349 | .nomem: |
1345 | .nomem: |
1350 | popad |
1346 | popad |
1351 | or ebx, -1 |
1347 | or ebx, -1 |
1352 | push 12 |
- | |
1353 | pop eax |
1348 | movi eax, 12 |
1354 | ret |
1349 | ret |
1355 | @@: |
1350 | @@: |
1356 | mov [ntfs_data.cur_index_buf], eax |
1351 | mov [ntfs_data.cur_index_buf], eax |
1357 | popad |
1352 | popad |
1358 | jmp .doit2 |
1353 | jmp .doit2 |
1359 | .readok1: |
1354 | .readok1: |
1360 | mov ebp, [esi+8] ; subnode_size |
1355 | mov ebp, [esi+8] ; subnode_size |
1361 | shr ebp, 9 |
1356 | shr ebp, 9 |
1362 | cmp ebp, [ntfs_data.cur_index_size] |
1357 | cmp ebp, [ntfs_data.cur_index_size] |
1363 | jbe .ok2 |
1358 | jbe .ok2 |
1364 | push esi ebp |
1359 | push esi ebp |
1365 | push ebp |
1360 | push ebp |
1366 | call kernel_alloc |
1361 | call kernel_alloc |
1367 | pop ebp esi |
1362 | pop ebp esi |
1368 | test eax, eax |
1363 | test eax, eax |
1369 | jz .nomem |
1364 | jz .nomem |
1370 | mov edi, eax |
1365 | mov edi, eax |
1371 | mov ecx, [ntfs_data.cur_index_size] |
1366 | mov ecx, [ntfs_data.cur_index_size] |
1372 | shl ecx, 9-2 |
1367 | shl ecx, 9-2 |
1373 | rep movsd |
1368 | rep movsd |
1374 | mov esi, eax |
1369 | mov esi, eax |
1375 | mov [ntfs_data.cur_index_size], ebp |
1370 | mov [ntfs_data.cur_index_size], ebp |
1376 | push esi ebp |
1371 | push esi ebp |
1377 | push [ntfs_data.cur_index_buf] |
1372 | push [ntfs_data.cur_index_buf] |
1378 | call kernel_free |
1373 | call kernel_free |
1379 | pop ebp esi |
1374 | pop ebp esi |
1380 | mov [ntfs_data.cur_index_buf], esi |
1375 | mov [ntfs_data.cur_index_buf], esi |
1381 | .ok2: |
1376 | .ok2: |
1382 | add esi, 10h |
1377 | add esi, 10h |
1383 | mov ebx, [esp+10h] |
1378 | mov ebx, [esp+10h] |
1384 | mov edx, [esp+14h] |
1379 | mov edx, [esp+14h] |
1385 | push dword [ebx+4] ; read ANSI/UNICODE name |
1380 | push dword [ebx+4] ; read ANSI/UNICODE name |
1386 | mov ebx, [ebx] |
1381 | mov ebx, [ebx] |
1387 | ; init header |
1382 | ; init header |
1388 | mov edi, edx |
1383 | mov edi, edx |
1389 | mov ecx, 32/4 |
1384 | mov ecx, 32/4 |
1390 | xor eax, eax |
1385 | xor eax, eax |
1391 | rep stosd |
1386 | rep stosd |
1392 | mov byte [edx], 1 ; version |
1387 | mov byte [edx], 1 ; version |
1393 | mov ecx, [esp+4+18h] |
1388 | mov ecx, [esp+4+18h] |
1394 | push edx |
1389 | push edx |
1395 | mov edx, esp |
1390 | mov edx, esp |
1396 | ; edi -> BDFE, esi -> current index data, ebp = subnode size, ebx = first wanted block, |
1391 | ; edi -> BDFE, esi -> current index data, ebp = subnode size, ebx = first wanted block, |
1397 | ; ecx = number of blocks to read |
1392 | ; ecx = number of blocks to read |
1398 | ; edx -> parameters block: dd |
1393 | ; edx -> parameters block: dd |
1399 | cmp [ntfs_cur_iRecord], 5 |
1394 | cmp [ntfs_cur_iRecord], 5 |
1400 | jz .skip_specials |
1395 | jz .skip_specials |
1401 | ; dot and dotdot entries |
1396 | ; dot and dotdot entries |
1402 | push esi |
1397 | push esi |
1403 | xor esi, esi |
1398 | xor esi, esi |
1404 | call .add_special_entry |
1399 | call .add_special_entry |
1405 | inc esi |
1400 | inc esi |
1406 | call .add_special_entry |
1401 | call .add_special_entry |
1407 | pop esi |
1402 | pop esi |
1408 | .skip_specials: |
1403 | .skip_specials: |
1409 | ; at first, dump index root |
1404 | ; at first, dump index root |
1410 | add esi, [esi] |
1405 | add esi, [esi] |
1411 | .dump_root: |
1406 | .dump_root: |
1412 | test byte [esi+0Ch], 2 |
1407 | test byte [esi+0Ch], 2 |
1413 | jnz .dump_root_done |
1408 | jnz .dump_root_done |
1414 | call .add_entry |
1409 | call .add_entry |
1415 | movzx eax, word [esi+8] |
1410 | movzx eax, word [esi+8] |
1416 | add esi, eax |
1411 | add esi, eax |
1417 | jmp .dump_root |
1412 | jmp .dump_root |
1418 | .dump_root_done: |
1413 | .dump_root_done: |
1419 | ; now dump all subnodes |
1414 | ; now dump all subnodes |
1420 | push ecx edi |
1415 | push ecx edi |
1421 | mov edi, ntfs_bitmap_buf |
1416 | mov edi, ntfs_bitmap_buf |
1422 | mov [ntfs_cur_buf], edi |
1417 | mov [ntfs_cur_buf], edi |
1423 | mov ecx, 0x400/4 |
1418 | mov ecx, 0x400/4 |
1424 | xor eax, eax |
1419 | xor eax, eax |
1425 | rep stosd |
1420 | rep stosd |
1426 | mov [ntfs_cur_attr], 0xB0 ; $BITMAP |
1421 | mov [ntfs_cur_attr], 0xB0 ; $BITMAP |
1427 | and [ntfs_cur_offs], 0 |
1422 | and [ntfs_cur_offs], 0 |
1428 | mov [ntfs_cur_size], 2 |
1423 | mov [ntfs_cur_size], 2 |
1429 | call ntfs_read_attr |
1424 | call ntfs_read_attr |
1430 | pop edi ecx |
1425 | pop edi ecx |
1431 | push 0 ; save offset in $BITMAP attribute |
1426 | push 0 ; save offset in $BITMAP attribute |
1432 | and [ntfs_cur_offs], 0 |
1427 | and [ntfs_cur_offs], 0 |
1433 | .dumploop: |
1428 | .dumploop: |
1434 | mov [ntfs_cur_attr], 0xA0 |
1429 | mov [ntfs_cur_attr], 0xA0 |
1435 | mov [ntfs_cur_size], ebp |
1430 | mov [ntfs_cur_size], ebp |
1436 | mov eax, [ntfs_data.cur_index_buf] |
1431 | mov eax, [ntfs_data.cur_index_buf] |
1437 | mov esi, eax |
1432 | mov esi, eax |
1438 | mov [ntfs_cur_buf], eax |
1433 | mov [ntfs_cur_buf], eax |
1439 | push [ntfs_cur_offs] |
1434 | push [ntfs_cur_offs] |
1440 | mov eax, [ntfs_cur_offs] |
1435 | mov eax, [ntfs_cur_offs] |
1441 | imul eax, ebp |
1436 | imul eax, ebp |
1442 | mov [ntfs_cur_offs], eax |
1437 | mov [ntfs_cur_offs], eax |
1443 | call ntfs_read_attr |
1438 | call ntfs_read_attr |
1444 | pop [ntfs_cur_offs] |
1439 | pop [ntfs_cur_offs] |
1445 | mov eax, ebp |
1440 | mov eax, ebp |
1446 | shl eax, 9 |
1441 | shl eax, 9 |
1447 | cmp [ntfs_cur_read], eax |
1442 | cmp [ntfs_cur_read], eax |
1448 | jnz .done |
1443 | jnz .done |
1449 | push eax |
1444 | push eax |
1450 | mov eax, [ntfs_cur_offs] |
1445 | mov eax, [ntfs_cur_offs] |
1451 | and eax, 0x400*8-1 |
1446 | and eax, 0x400*8-1 |
1452 | bt dword [ntfs_bitmap_buf], eax |
1447 | bt dword [ntfs_bitmap_buf], eax |
1453 | pop eax |
1448 | pop eax |
1454 | jnc .dump_subnode_done |
1449 | jnc .dump_subnode_done |
1455 | cmp dword [esi], 'INDX' |
1450 | cmp dword [esi], 'INDX' |
1456 | jnz .dump_subnode_done |
1451 | jnz .dump_subnode_done |
1457 | push ebx |
1452 | push ebx |
1458 | mov ebx, esi |
1453 | mov ebx, esi |
1459 | call ntfs_restore_usa |
1454 | call ntfs_restore_usa |
1460 | pop ebx |
1455 | pop ebx |
1461 | jc .dump_subnode_done |
1456 | jc .dump_subnode_done |
1462 | add esi, 0x18 |
1457 | add esi, 0x18 |
1463 | add esi, [esi] |
1458 | add esi, [esi] |
1464 | .dump_subnode: |
1459 | .dump_subnode: |
1465 | test byte [esi+0Ch], 2 |
1460 | test byte [esi+0Ch], 2 |
1466 | jnz .dump_subnode_done |
1461 | jnz .dump_subnode_done |
1467 | call .add_entry |
1462 | call .add_entry |
1468 | movzx eax, word [esi+8] |
1463 | movzx eax, word [esi+8] |
1469 | add esi, eax |
1464 | add esi, eax |
1470 | jmp .dump_subnode |
1465 | jmp .dump_subnode |
1471 | .dump_subnode_done: |
1466 | .dump_subnode_done: |
1472 | inc [ntfs_cur_offs] |
1467 | inc [ntfs_cur_offs] |
1473 | test [ntfs_cur_offs], 0x400*8-1 |
1468 | test [ntfs_cur_offs], 0x400*8-1 |
1474 | jnz .dumploop |
1469 | jnz .dumploop |
1475 | mov [ntfs_cur_attr], 0xB0 |
1470 | mov [ntfs_cur_attr], 0xB0 |
1476 | push ecx edi |
1471 | push ecx edi |
1477 | mov edi, ntfs_bitmap_buf |
1472 | mov edi, ntfs_bitmap_buf |
1478 | mov [ntfs_cur_buf], edi |
1473 | mov [ntfs_cur_buf], edi |
1479 | mov ecx, 0x400/4 |
1474 | mov ecx, 0x400/4 |
1480 | xor eax, eax |
1475 | xor eax, eax |
1481 | rep stosd |
1476 | rep stosd |
1482 | pop edi ecx |
1477 | pop edi ecx |
1483 | pop eax |
1478 | pop eax |
1484 | push [ntfs_cur_offs] |
1479 | push [ntfs_cur_offs] |
1485 | inc eax |
1480 | inc eax |
1486 | mov [ntfs_cur_offs], eax |
1481 | mov [ntfs_cur_offs], eax |
1487 | mov [ntfs_cur_size], 2 |
1482 | mov [ntfs_cur_size], 2 |
1488 | push eax |
1483 | push eax |
1489 | call ntfs_read_attr |
1484 | call ntfs_read_attr |
1490 | pop eax |
1485 | pop eax |
1491 | pop [ntfs_cur_offs] |
1486 | pop [ntfs_cur_offs] |
1492 | push eax |
1487 | push eax |
1493 | jmp .dumploop |
1488 | jmp .dumploop |
1494 | .done: |
1489 | .done: |
1495 | pop eax |
1490 | pop eax |
1496 | pop edx |
1491 | pop edx |
1497 | mov ebx, [edx+4] |
1492 | mov ebx, [edx+4] |
1498 | pop edx |
1493 | pop edx |
1499 | xor eax, eax |
1494 | xor eax, eax |
1500 | dec ecx |
1495 | dec ecx |
1501 | js @f |
1496 | js @f |
1502 | mov al, ERROR_END_OF_FILE |
1497 | mov al, ERROR_END_OF_FILE |
1503 | @@: |
1498 | @@: |
1504 | mov [esp+1Ch], eax |
1499 | mov [esp+1Ch], eax |
1505 | mov [esp+10h], ebx |
1500 | mov [esp+10h], ebx |
1506 | popad |
1501 | popad |
1507 | ret |
1502 | ret |
1508 | 1503 | ||
1509 | .add_special_entry: |
1504 | .add_special_entry: |
1510 | mov eax, [edx] |
1505 | mov eax, [edx] |
1511 | inc dword [eax+8] ; new file found |
1506 | inc dword [eax+8] ; new file found |
1512 | dec ebx |
1507 | dec ebx |
1513 | jns .ret |
1508 | jns .ret |
1514 | dec ecx |
1509 | dec ecx |
1515 | js .ret |
1510 | js .ret |
1516 | inc dword [eax+4] ; new file block copied |
1511 | inc dword [eax+4] ; new file block copied |
1517 | mov eax, [edx+4] |
1512 | mov eax, [edx+4] |
1518 | mov [edi+4], eax |
1513 | mov [edi+4], eax |
1519 | ; mov eax, dword [ntfs_bitmap_buf+0x20] |
1514 | ; mov eax, dword [ntfs_bitmap_buf+0x20] |
1520 | ; or al, 0x10 |
1515 | ; or al, 0x10 |
1521 | mov eax, 0x10 |
1516 | mov eax, 0x10 |
1522 | stosd |
1517 | stosd |
1523 | scasd |
1518 | scasd |
1524 | push edx |
1519 | push edx |
1525 | mov eax, dword [ntfs_bitmap_buf] |
1520 | mov eax, dword [ntfs_bitmap_buf] |
1526 | mov edx, dword [ntfs_bitmap_buf+4] |
1521 | mov edx, dword [ntfs_bitmap_buf+4] |
1527 | call ntfs_datetime_to_bdfe |
1522 | call ntfs_datetime_to_bdfe |
1528 | mov eax, dword [ntfs_bitmap_buf+0x18] |
1523 | mov eax, dword [ntfs_bitmap_buf+0x18] |
1529 | mov edx, dword [ntfs_bitmap_buf+0x1C] |
1524 | mov edx, dword [ntfs_bitmap_buf+0x1C] |
1530 | call ntfs_datetime_to_bdfe |
1525 | call ntfs_datetime_to_bdfe |
1531 | mov eax, dword [ntfs_bitmap_buf+8] |
1526 | mov eax, dword [ntfs_bitmap_buf+8] |
1532 | mov edx, dword [ntfs_bitmap_buf+0xC] |
1527 | mov edx, dword [ntfs_bitmap_buf+0xC] |
1533 | call ntfs_datetime_to_bdfe |
1528 | call ntfs_datetime_to_bdfe |
1534 | pop edx |
1529 | pop edx |
1535 | xor eax, eax |
1530 | xor eax, eax |
1536 | stosd |
1531 | stosd |
1537 | stosd |
1532 | stosd |
1538 | mov al, '.' |
1533 | mov al, '.' |
1539 | push edi ecx |
1534 | push edi ecx |
1540 | lea ecx, [esi+1] |
1535 | lea ecx, [esi+1] |
1541 | test byte [edi-0x24], 1 |
1536 | test byte [edi-0x24], 1 |
1542 | jz @f |
1537 | jz @f |
1543 | rep stosw |
1538 | rep stosw |
1544 | pop ecx |
1539 | pop ecx |
1545 | xor eax, eax |
1540 | xor eax, eax |
1546 | stosw |
1541 | stosw |
1547 | pop edi |
1542 | pop edi |
1548 | add edi, 520 |
1543 | add edi, 520 |
1549 | ret |
1544 | ret |
1550 | @@: |
1545 | @@: |
1551 | rep stosb |
1546 | rep stosb |
1552 | pop ecx |
1547 | pop ecx |
1553 | xor eax, eax |
1548 | xor eax, eax |
1554 | stosb |
1549 | stosb |
1555 | pop edi |
1550 | pop edi |
1556 | add edi, 264 |
1551 | add edi, 264 |
1557 | .ret: |
1552 | .ret: |
1558 | ret |
1553 | ret |
1559 | 1554 | ||
1560 | .add_entry: |
1555 | .add_entry: |
1561 | ; do not return DOS 8.3 names |
1556 | ; do not return DOS 8.3 names |
1562 | cmp byte [esi+0x51], 2 |
1557 | cmp byte [esi+0x51], 2 |
1563 | jz .ret |
1558 | jz .ret |
1564 | ; do not return system files |
1559 | ; do not return system files |
1565 | ; ... note that there will be no bad effects if system files also were reported ... |
1560 | ; ... note that there will be no bad effects if system files also were reported ... |
1566 | cmp dword [esi], 0x10 |
1561 | cmp dword [esi], 0x10 |
1567 | jb .ret |
1562 | jb .ret |
1568 | mov eax, [edx] |
1563 | mov eax, [edx] |
1569 | inc dword [eax+8] ; new file found |
1564 | inc dword [eax+8] ; new file found |
1570 | dec ebx |
1565 | dec ebx |
1571 | jns .ret |
1566 | jns .ret |
1572 | dec ecx |
1567 | dec ecx |
1573 | js .ret |
1568 | js .ret |
1574 | inc dword [eax+4] ; new file block copied |
1569 | inc dword [eax+4] ; new file block copied |
1575 | mov eax, [edx+4] ; flags |
1570 | mov eax, [edx+4] ; flags |
1576 | call ntfs_direntry_to_bdfe |
1571 | call ntfs_direntry_to_bdfe |
1577 | push ecx esi edi |
1572 | push ecx esi edi |
1578 | movzx ecx, byte [esi+0x50] |
1573 | movzx ecx, byte [esi+0x50] |
1579 | add esi, 0x52 |
1574 | add esi, 0x52 |
1580 | test byte [edi-0x24], 1 |
1575 | test byte [edi-0x24], 1 |
1581 | jz .ansi |
1576 | jz .ansi |
1582 | shr ecx, 1 |
1577 | shr ecx, 1 |
1583 | rep movsd |
1578 | rep movsd |
1584 | adc ecx, ecx |
1579 | adc ecx, ecx |
1585 | rep movsw |
1580 | rep movsw |
1586 | and word [edi], 0 |
1581 | and word [edi], 0 |
1587 | pop edi |
1582 | pop edi |
1588 | add edi, 520 |
1583 | add edi, 520 |
1589 | pop esi ecx |
1584 | pop esi ecx |
1590 | ret |
1585 | ret |
1591 | .ansi: |
1586 | .ansi: |
1592 | jecxz .skip |
1587 | jecxz .skip |
1593 | @@: |
1588 | @@: |
1594 | lodsw |
1589 | lodsw |
1595 | call uni2ansi_char |
1590 | call uni2ansi_char |
1596 | stosb |
1591 | stosb |
1597 | loop @b |
1592 | loop @b |
1598 | .skip: |
1593 | .skip: |
1599 | xor al, al |
1594 | xor al, al |
1600 | stosb |
1595 | stosb |
1601 | pop edi |
1596 | pop edi |
1602 | add edi, 264 |
1597 | add edi, 264 |
1603 | pop esi ecx |
1598 | pop esi ecx |
1604 | ret |
1599 | ret |
1605 | 1600 | ||
1606 | ntfs_direntry_to_bdfe: |
1601 | ntfs_direntry_to_bdfe: |
1607 | mov [edi+4], eax ; ANSI/UNICODE name |
1602 | mov [edi+4], eax ; ANSI/UNICODE name |
1608 | mov eax, [esi+48h] |
1603 | mov eax, [esi+48h] |
1609 | test eax, 0x10000000 |
1604 | test eax, 0x10000000 |
1610 | jz @f |
1605 | jz @f |
1611 | and eax, not 0x10000000 |
1606 | and eax, not 0x10000000 |
1612 | or al, 0x10 |
1607 | or al, 0x10 |
1613 | @@: |
1608 | @@: |
1614 | stosd |
1609 | stosd |
1615 | scasd |
1610 | scasd |
1616 | push edx |
1611 | push edx |
1617 | mov eax, [esi+0x18] |
1612 | mov eax, [esi+0x18] |
1618 | mov edx, [esi+0x1C] |
1613 | mov edx, [esi+0x1C] |
1619 | call ntfs_datetime_to_bdfe |
1614 | call ntfs_datetime_to_bdfe |
1620 | mov eax, [esi+0x30] |
1615 | mov eax, [esi+0x30] |
1621 | mov edx, [esi+0x34] |
1616 | mov edx, [esi+0x34] |
1622 | call ntfs_datetime_to_bdfe |
1617 | call ntfs_datetime_to_bdfe |
1623 | mov eax, [esi+0x20] |
1618 | mov eax, [esi+0x20] |
1624 | mov edx, [esi+0x24] |
1619 | mov edx, [esi+0x24] |
1625 | call ntfs_datetime_to_bdfe |
1620 | call ntfs_datetime_to_bdfe |
1626 | pop edx |
1621 | pop edx |
1627 | mov eax, [esi+0x40] |
1622 | mov eax, [esi+0x40] |
1628 | stosd |
1623 | stosd |
1629 | mov eax, [esi+0x44] |
1624 | mov eax, [esi+0x44] |
1630 | stosd |
1625 | stosd |
1631 | ret |
1626 | ret |
1632 | 1627 | ||
1633 | iglobal |
1628 | iglobal |
1634 | _24 dd 24 |
1629 | _24 dd 24 |
1635 | _60 dd 60 |
1630 | _60 dd 60 |
1636 | _10000000 dd 10000000 |
1631 | _10000000 dd 10000000 |
1637 | days400year dd 365*400+100-4+1 |
1632 | days400year dd 365*400+100-4+1 |
1638 | days100year dd 365*100+25-1 |
1633 | days100year dd 365*100+25-1 |
1639 | days4year dd 365*4+1 |
1634 | days4year dd 365*4+1 |
1640 | days1year dd 365 |
1635 | days1year dd 365 |
1641 | months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1636 | months dd 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1642 | months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1637 | months2 dd 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 |
1643 | _400 dd 400 |
1638 | _400 dd 400 |
1644 | _100 dd 100 |
1639 | _100 dd 100 |
1645 | endg |
1640 | endg |
1646 | 1641 | ||
1647 | ntfs_datetime_to_bdfe: |
1642 | ntfs_datetime_to_bdfe: |
1648 | ; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC |
1643 | ; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC |
1649 | push eax |
1644 | push eax |
1650 | mov eax, edx |
1645 | mov eax, edx |
1651 | xor edx, edx |
1646 | xor edx, edx |
1652 | div [_10000000] |
1647 | div [_10000000] |
1653 | xchg eax, [esp] |
1648 | xchg eax, [esp] |
1654 | div [_10000000] |
1649 | div [_10000000] |
1655 | pop edx |
1650 | pop edx |
1656 | .sec: |
1651 | .sec: |
1657 | ; edx:eax = number of seconds since January 1, 1601 |
1652 | ; edx:eax = number of seconds since January 1, 1601 |
1658 | push eax |
1653 | push eax |
1659 | mov eax, edx |
1654 | mov eax, edx |
1660 | xor edx, edx |
1655 | xor edx, edx |
1661 | div [_60] |
1656 | div [_60] |
1662 | xchg eax, [esp] |
1657 | xchg eax, [esp] |
1663 | div [_60] |
1658 | div [_60] |
1664 | mov [edi], dl |
1659 | mov [edi], dl |
1665 | pop edx |
1660 | pop edx |
1666 | ; edx:eax = number of minutes |
1661 | ; edx:eax = number of minutes |
1667 | div [_60] |
1662 | div [_60] |
1668 | mov [edi+1], dl |
1663 | mov [edi+1], dl |
1669 | ; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32) |
1664 | ; eax = number of hours (note that 2^64/(10^7*60*60) < 2^32) |
1670 | xor edx, edx |
1665 | xor edx, edx |
1671 | div [_24] |
1666 | div [_24] |
1672 | mov [edi+2], dl |
1667 | mov [edi+2], dl |
1673 | mov [edi+3], byte 0 |
1668 | mov [edi+3], byte 0 |
1674 | ; eax = number of days since January 1, 1601 |
1669 | ; eax = number of days since January 1, 1601 |
1675 | xor edx, edx |
1670 | xor edx, edx |
1676 | div [days400year] |
1671 | div [days400year] |
1677 | imul eax, 400 |
1672 | imul eax, 400 |
1678 | add eax, 1601 |
1673 | add eax, 1601 |
1679 | mov [edi+6], ax |
1674 | mov [edi+6], ax |
1680 | mov eax, edx |
1675 | mov eax, edx |
1681 | xor edx, edx |
1676 | xor edx, edx |
1682 | div [days100year] |
1677 | div [days100year] |
1683 | cmp al, 4 |
1678 | cmp al, 4 |
1684 | jnz @f |
1679 | jnz @f |
1685 | dec eax |
1680 | dec eax |
1686 | add edx, [days100year] |
1681 | add edx, [days100year] |
1687 | @@: |
1682 | @@: |
1688 | imul eax, 100 |
1683 | imul eax, 100 |
1689 | add [edi+6], ax |
1684 | add [edi+6], ax |
1690 | mov eax, edx |
1685 | mov eax, edx |
1691 | xor edx, edx |
1686 | xor edx, edx |
1692 | div [days4year] |
1687 | div [days4year] |
1693 | shl eax, 2 |
1688 | shl eax, 2 |
1694 | add [edi+6], ax |
1689 | add [edi+6], ax |
1695 | mov eax, edx |
1690 | mov eax, edx |
1696 | xor edx, edx |
1691 | xor edx, edx |
1697 | div [days1year] |
1692 | div [days1year] |
1698 | cmp al, 4 |
1693 | cmp al, 4 |
1699 | jnz @f |
1694 | jnz @f |
1700 | dec eax |
1695 | dec eax |
1701 | add edx, [days1year] |
1696 | add edx, [days1year] |
1702 | @@: |
1697 | @@: |
1703 | add [edi+6], ax |
1698 | add [edi+6], ax |
1704 | push esi edx |
1699 | push esi edx |
1705 | mov esi, months |
1700 | mov esi, months |
1706 | movzx eax, word [edi+6] |
1701 | movzx eax, word [edi+6] |
1707 | test al, 3 |
1702 | test al, 3 |
1708 | jnz .noleap |
1703 | jnz .noleap |
1709 | xor edx, edx |
1704 | xor edx, edx |
1710 | push eax |
1705 | push eax |
1711 | div [_400] |
1706 | div [_400] |
1712 | pop eax |
1707 | pop eax |
1713 | test edx, edx |
1708 | test edx, edx |
1714 | jz .leap |
1709 | jz .leap |
1715 | xor edx, edx |
1710 | xor edx, edx |
1716 | div [_100] |
1711 | div [_100] |
1717 | test edx, edx |
1712 | test edx, edx |
1718 | jz .noleap |
1713 | jz .noleap |
1719 | .leap: |
1714 | .leap: |
1720 | mov esi, months2 |
1715 | mov esi, months2 |
1721 | .noleap: |
1716 | .noleap: |
1722 | pop edx |
1717 | pop edx |
1723 | xor eax, eax |
1718 | xor eax, eax |
1724 | inc eax |
1719 | inc eax |
1725 | @@: |
1720 | @@: |
1726 | sub edx, [esi] |
1721 | sub edx, [esi] |
1727 | jb @f |
1722 | jb @f |
1728 | add esi, 4 |
1723 | add esi, 4 |
1729 | inc eax |
1724 | inc eax |
1730 | jmp @b |
1725 | jmp @b |
1731 | @@: |
1726 | @@: |
1732 | add edx, [esi] |
1727 | add edx, [esi] |
1733 | pop esi |
1728 | pop esi |
1734 | inc edx |
1729 | inc edx |
1735 | mov [edi+4], dl |
1730 | mov [edi+4], dl |
1736 | mov [edi+5], al |
1731 | mov [edi+5], al |
1737 | add edi, 8 |
1732 | add edi, 8 |
1738 | ret |
1733 | ret |
1739 | 1734 | ||
1740 | ;---------------------------------------------------------------- |
1735 | ;---------------------------------------------------------------- |
1741 | ; |
1736 | ; |
1742 | ; ntfs_HdRewrite - write to NTFS hard disk |
1737 | ; ntfs_HdRewrite - write to NTFS hard disk |
1743 | ; |
1738 | ; |
1744 | ; esi points to filename |
1739 | ; esi points to filename |
1745 | ; ebx ignored (reserved) |
1740 | ; ebx ignored (reserved) |
1746 | ; ecx number of bytes to write, 0+ |
1741 | ; ecx number of bytes to write, 0+ |
1747 | ; edx mem location to data |
1742 | ; edx mem location to data |
1748 | ; |
1743 | ; |
1749 | ; ret ebx = number of written bytes |
1744 | ; ret ebx = number of written bytes |
1750 | ; eax = 0 ok read or other = errormsg |
1745 | ; eax = 0 ok read or other = errormsg |
1751 | ; |
1746 | ; |
1752 | ;-------------------------------------------------------------- |
1747 | ;-------------------------------------------------------------- |
1753 | ntfs_HdRewrite: |
1748 | ntfs_HdRewrite: |
1754 | xor ebx, ebx |
1749 | xor ebx, ebx |
1755 | mov eax, ERROR_UNSUPPORTED_FS |
1750 | mov eax, ERROR_UNSUPPORTED_FS |
1756 | ret |
1751 | ret |
1757 | 1752 | ||
1758 | ;---------------------------------------------------------------- |
1753 | ;---------------------------------------------------------------- |
1759 | ; |
1754 | ; |
1760 | ; ntfs_HdWrite - write to NTFS hard disk |
1755 | ; ntfs_HdWrite - write to NTFS hard disk |
1761 | ; |
1756 | ; |
1762 | ; esi points to filename |
1757 | ; esi points to filename |
1763 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
1758 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
1764 | ; may be ebx=0 - start from first byte |
1759 | ; may be ebx=0 - start from first byte |
1765 | ; ecx number of bytes to write, 0+ |
1760 | ; ecx number of bytes to write, 0+ |
1766 | ; edx mem location to data |
1761 | ; edx mem location to data |
1767 | ; |
1762 | ; |
1768 | ; ret ebx = bytes written (maybe 0) |
1763 | ; ret ebx = bytes written (maybe 0) |
1769 | ; eax = 0 ok write or other = errormsg |
1764 | ; eax = 0 ok write or other = errormsg |
1770 | ; |
1765 | ; |
1771 | ;-------------------------------------------------------------- |
1766 | ;-------------------------------------------------------------- |
1772 | ntfs_HdWrite: |
1767 | ntfs_HdWrite: |
1773 | xor ebx, ebx |
1768 | xor ebx, ebx |
1774 | mov eax, ERROR_UNSUPPORTED_FS |
1769 | mov eax, ERROR_UNSUPPORTED_FS |
1775 | ret |
1770 | ret |
1776 | 1771 | ||
1777 | ;---------------------------------------------------------------- |
1772 | ;---------------------------------------------------------------- |
1778 | ; |
1773 | ; |
1779 | ; ntfs_HdSetFileEnd - set end of file on NTFS hard disk |
1774 | ; ntfs_HdSetFileEnd - set end of file on NTFS hard disk |
1780 | ; |
1775 | ; |
1781 | ; esi points to filename |
1776 | ; esi points to filename |
1782 | ; ebx points to 64-bit number = new file size |
1777 | ; ebx points to 64-bit number = new file size |
1783 | ; ecx ignored (reserved) |
1778 | ; ecx ignored (reserved) |
1784 | ; edx ignored (reserved) |
1779 | ; edx ignored (reserved) |
1785 | ; |
1780 | ; |
1786 | ; ret eax = 0 ok or other = errormsg |
1781 | ; ret eax = 0 ok or other = errormsg |
1787 | ; |
1782 | ; |
1788 | ;-------------------------------------------------------------- |
1783 | ;-------------------------------------------------------------- |
1789 | ntfs_HdSetFileEnd: |
1784 | ntfs_HdSetFileEnd: |
1790 | ntfs_HdSetFileInfo: |
1785 | ntfs_HdSetFileInfo: |
1791 | ;---------------------------------------------------------------- |
1786 | ;---------------------------------------------------------------- |
1792 | ; |
1787 | ; |
1793 | ; ntfs_HdDelete - delete file or empty folder from NTFS hard disk |
1788 | ; ntfs_HdDelete - delete file or empty folder from NTFS hard disk |
1794 | ; |
1789 | ; |
1795 | ; esi points to filename |
1790 | ; esi points to filename |
1796 | ; |
1791 | ; |
1797 | ; ret eax = 0 ok or other = errormsg |
1792 | ; ret eax = 0 ok or other = errormsg |
1798 | ; |
1793 | ; |
1799 | ;-------------------------------------------------------------- |
1794 | ;-------------------------------------------------------------- |
1800 | ntfs_HdDelete: |
1795 | ntfs_HdDelete: |
1801 | mov eax, ERROR_UNSUPPORTED_FS |
1796 | mov eax, ERROR_UNSUPPORTED_FS |
1802 | ret |
1797 | ret |
1803 | 1798 | ||
1804 | ntfs_HdGetFileInfo: |
1799 | ntfs_HdGetFileInfo: |
1805 | cmp byte [esi], 0 |
1800 | cmp byte [esi], 0 |
1806 | jnz @f |
1801 | jnz @f |
1807 | push 2 |
- | |
1808 | pop eax |
1802 | movi eax, 2 |
1809 | ret |
1803 | ret |
1810 | @@: |
1804 | @@: |
1811 | call ntfs_find_lfn |
1805 | call ntfs_find_lfn |
1812 | jnc .doit |
1806 | jnc .doit |
1813 | push ERROR_FILE_NOT_FOUND |
1807 | movi eax, ERROR_FILE_NOT_FOUND |
1814 | pop eax |
- | |
1815 | cmp [hd_error], 0 |
1808 | cmp [hd_error], 0 |
1816 | jz @f |
1809 | jz @f |
1817 | mov al, 11 |
1810 | mov al, 11 |
1818 | @@: |
1811 | @@: |
1819 | ret |
1812 | ret |
1820 | .doit: |
1813 | .doit: |
1821 | push esi edi |
1814 | push esi edi |
1822 | mov esi, eax |
1815 | mov esi, eax |
1823 | mov edi, edx |
1816 | mov edi, edx |
1824 | xor eax, eax |
1817 | xor eax, eax |
1825 | call ntfs_direntry_to_bdfe |
1818 | call ntfs_direntry_to_bdfe |
1826 | pop edi esi |
1819 | pop edi esi |
1827 | xor eax, eax |
1820 | xor eax, eax |
1828 | ret>=>=>=> |
1821 | ret>=>=>=> |