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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1289 | diamond | 3 | ;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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164 | serge | 7 | |
593 | mikedld | 8 | $Revision: 2089 $ |
9 | |||
10 | |||
465 | serge | 11 | DRV_COMPAT equ 5 ;minimal required drivers version |
2089 | serge | 12 | DRV_CURRENT equ 6 ;current drivers model version |
214 | serge | 13 | |
227 | serge | 14 | DRV_VERSION equ (DRV_COMPAT shl 16) or DRV_CURRENT |
797 | serge | 15 | PID_KERNEL equ 1 ;os_idle thread |
227 | serge | 16 | |
164 | serge | 17 | align 4 |
774 | Rus | 18 | proc attach_int_handler stdcall, irq:dword, handler:dword, access_rights:dword |
164 | serge | 19 | |
2089 | serge | 20 | pushfd |
21 | cli |
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22 | |||
978 | serge | 23 | push ebx |
24 | |||
802 | serge | 25 | mov ebx, [irq] ;irq num |
924 | serge | 26 | test ebx, ebx |
27 | jz .err |
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802 | serge | 28 | cmp ebx, 15 ; hidnplayr says: we only have 16 IRQ's |
924 | serge | 29 | ja .err |
30 | mov eax, [handler] |
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31 | test eax, eax |
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32 | jz .err |
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774 | Rus | 33 | |
924 | serge | 34 | mov [irq_tab+ebx*4], eax |
35 | stdcall enable_irq, [irq] |
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978 | serge | 36 | pop ebx |
802 | serge | 37 | mov eax, 1 |
2089 | serge | 38 | popfd |
924 | serge | 39 | ret |
164 | serge | 40 | .err: |
978 | serge | 41 | pop ebx |
924 | serge | 42 | xor eax, eax |
2089 | serge | 43 | popfd |
924 | serge | 44 | ret |
164 | serge | 45 | endp |
46 | |||
774 | Rus | 47 | proc get_int_handler stdcall, irq:dword |
48 | |||
49 | mov eax, [irq] |
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50 | |||
51 | mov eax, [irq_tab + 4 * eax] |
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52 | ret |
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53 | endp |
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54 | |||
164 | serge | 55 | align 4 |
56 | proc detach_int_handler |
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57 | |||
58 | ret |
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59 | endp |
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60 | |||
61 | align 4 |
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62 | proc enable_irq stdcall, irq_line:dword |
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672 | hidnplayr | 63 | mov ebx, [irq_line] |
64 | mov edx, 0x21 |
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65 | cmp ebx, 8 |
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66 | jb @F |
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67 | mov edx, 0xA1 |
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68 | sub ebx,8 |
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164 | serge | 69 | @@: |
672 | hidnplayr | 70 | in al,dx |
71 | btr eax, ebx |
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72 | out dx, al |
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73 | ret |
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164 | serge | 74 | endp |
75 | |||
76 | align 16 |
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77 | ;; proc irq_serv |
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78 | |||
79 | irq_serv: |
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80 | |||
81 | .irq_1: |
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769 | Rus | 82 | push 1 |
164 | serge | 83 | jmp .main |
84 | align 4 |
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85 | .irq_2: |
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769 | Rus | 86 | push 2 |
164 | serge | 87 | jmp .main |
88 | align 4 |
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89 | .irq_3: |
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769 | Rus | 90 | push 3 |
164 | serge | 91 | jmp .main |
92 | align 4 |
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93 | .irq_4: |
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769 | Rus | 94 | push 4 |
164 | serge | 95 | jmp .main |
96 | align 4 |
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97 | .irq_5: |
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769 | Rus | 98 | push 5 |
164 | serge | 99 | jmp .main |
100 | align 4 |
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1992 | clevermous | 101 | .irq_6: |
102 | push 6 |
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103 | jmp .main |
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104 | align 4 |
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164 | serge | 105 | .irq_7: |
769 | Rus | 106 | push 7 |
164 | serge | 107 | jmp .main |
108 | align 4 |
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109 | .irq_8: |
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769 | Rus | 110 | push 8 |
164 | serge | 111 | jmp .main |
112 | align 4 |
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113 | .irq_9: |
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769 | Rus | 114 | push 9 |
164 | serge | 115 | jmp .main |
116 | align 4 |
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117 | .irq_10: |
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769 | Rus | 118 | push 10 |
164 | serge | 119 | jmp .main |
120 | align 4 |
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121 | .irq_11: |
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769 | Rus | 122 | push 11 |
164 | serge | 123 | jmp .main |
124 | align 4 |
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125 | .irq_12: |
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769 | Rus | 126 | push 12 |
164 | serge | 127 | jmp .main |
972 | ghost | 128 | ; align 4 |
129 | ; .irq_13: |
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130 | ; push 13 |
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131 | ; jmp .main |
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1989 | clevermous | 132 | align 4 |
133 | .irq_14: |
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134 | push 14 |
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135 | jmp .main |
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136 | align 4 |
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137 | .irq_15: |
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138 | push 15 |
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139 | jmp .main |
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164 | serge | 140 | |
141 | align 16 |
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142 | .main: |
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143 | save_ring3_context |
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769 | Rus | 144 | mov eax, [esp + 32] |
672 | hidnplayr | 145 | mov bx, app_data ;os_data |
164 | serge | 146 | mov ds, bx |
147 | mov es, bx |
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148 | |||
769 | Rus | 149 | cmp [v86_irqhooks+eax*8], 0 |
150 | jnz v86_irq |
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709 | diamond | 151 | |
1992 | clevermous | 152 | cmp al, 6 |
153 | jnz @f |
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154 | push eax |
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155 | call [fdc_irq_func] |
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156 | pop eax |
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157 | @@: |
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158 | |||
1989 | clevermous | 159 | cmp al, 14 |
160 | jnz @f |
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161 | push eax |
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162 | call [irq14_func] |
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163 | pop eax |
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164 | @@: |
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165 | cmp al, 15 |
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166 | jnz @f |
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167 | push eax |
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168 | call [irq15_func] |
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169 | pop eax |
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170 | @@: |
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171 | |||
164 | serge | 172 | mov ebx, [irq_tab+eax*4] |
173 | test ebx, ebx |
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174 | jz .exit |
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175 | |||
672 | hidnplayr | 176 | call ebx |
177 | mov [check_idle_semaphore],5 |
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164 | serge | 178 | |
179 | .exit: |
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180 | |||
2089 | serge | 181 | cmp dword [esp + 32], 8 |
164 | serge | 182 | mov al, 0x20 |
672 | hidnplayr | 183 | jb @f |
2089 | serge | 184 | out 0xa0, al |
164 | serge | 185 | @@: |
672 | hidnplayr | 186 | out 0x20, al |
164 | serge | 187 | |
769 | Rus | 188 | restore_ring3_context |
189 | add esp, 4 |
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190 | |||
164 | serge | 191 | iret |
192 | |||
193 | align 4 |
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194 | proc get_notify stdcall, p_ev:dword |
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195 | |||
196 | .wait: |
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672 | hidnplayr | 197 | mov ebx,[current_slot] |
198 | test dword [ebx+APPDATA.event_mask],EVENT_NOTIFY |
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164 | serge | 199 | jz @f |
672 | hidnplayr | 200 | and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY |
164 | serge | 201 | mov edi, [p_ev] |
202 | mov dword [edi], EV_INTR |
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672 | hidnplayr | 203 | mov eax, [ebx+APPDATA.event] |
164 | serge | 204 | mov dword [edi+4], eax |
205 | ret |
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206 | @@: |
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207 | call change_task |
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208 | jmp .wait |
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209 | endp |
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210 | |||
211 | align 4 |
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212 | proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword |
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769 | Rus | 213 | push ebx |
164 | serge | 214 | xor eax, eax |
215 | xor ebx, ebx |
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216 | mov ah, byte [bus] |
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672 | hidnplayr | 217 | mov al, 6 |
164 | serge | 218 | mov bh, byte [devfn] |
219 | mov bl, byte [reg] |
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220 | call pci_read_reg |
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769 | Rus | 221 | pop ebx |
164 | serge | 222 | ret |
223 | endp |
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224 | |||
225 | align 4 |
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557 | serge | 226 | proc pci_read16 stdcall, bus:dword, devfn:dword, reg:dword |
769 | Rus | 227 | push ebx |
557 | serge | 228 | xor eax, eax |
229 | xor ebx, ebx |
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230 | mov ah, byte [bus] |
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672 | hidnplayr | 231 | mov al, 5 |
557 | serge | 232 | mov bh, byte [devfn] |
233 | mov bl, byte [reg] |
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234 | call pci_read_reg |
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769 | Rus | 235 | pop ebx |
557 | serge | 236 | ret |
237 | endp |
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238 | |||
239 | align 4 |
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164 | serge | 240 | proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword |
769 | Rus | 241 | push ebx |
164 | serge | 242 | xor eax, eax |
243 | xor ebx, ebx |
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244 | mov ah, byte [bus] |
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672 | hidnplayr | 245 | mov al, 4 |
164 | serge | 246 | mov bh, byte [devfn] |
247 | mov bl, byte [reg] |
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248 | call pci_read_reg |
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769 | Rus | 249 | pop ebx |
164 | serge | 250 | ret |
251 | endp |
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252 | |||
253 | align 4 |
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254 | proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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769 | Rus | 255 | push ebx |
164 | serge | 256 | xor eax, eax |
257 | xor ebx, ebx |
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258 | mov ah, byte [bus] |
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672 | hidnplayr | 259 | mov al, 8 |
164 | serge | 260 | mov bh, byte [devfn] |
261 | mov bl, byte [reg] |
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672 | hidnplayr | 262 | mov ecx, [val] |
263 | call pci_write_reg |
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769 | Rus | 264 | pop ebx |
164 | serge | 265 | ret |
266 | endp |
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267 | |||
557 | serge | 268 | align 4 |
269 | proc pci_write16 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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769 | Rus | 270 | push ebx |
557 | serge | 271 | xor eax, eax |
272 | xor ebx, ebx |
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273 | mov ah, byte [bus] |
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672 | hidnplayr | 274 | mov al, 9 |
557 | serge | 275 | mov bh, byte [devfn] |
276 | mov bl, byte [reg] |
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672 | hidnplayr | 277 | mov ecx, [val] |
278 | call pci_write_reg |
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769 | Rus | 279 | pop ebx |
557 | serge | 280 | ret |
281 | endp |
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282 | |||
672 | hidnplayr | 283 | align 4 |
284 | proc pci_write32 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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769 | Rus | 285 | push ebx |
672 | hidnplayr | 286 | xor eax, eax |
287 | xor ebx, ebx |
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288 | mov ah, byte [bus] |
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289 | mov al, 10 |
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290 | mov bh, byte [devfn] |
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291 | mov bl, byte [reg] |
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292 | mov ecx, [val] |
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293 | call pci_write_reg |
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769 | Rus | 294 | pop ebx |
672 | hidnplayr | 295 | ret |
296 | endp |
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164 | serge | 297 | |
672 | hidnplayr | 298 | handle equ IOCTL.handle |
299 | io_code equ IOCTL.io_code |
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300 | input equ IOCTL.input |
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301 | inp_size equ IOCTL.inp_size |
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302 | output equ IOCTL.output |
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303 | out_size equ IOCTL.out_size |
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164 | serge | 304 | |
672 | hidnplayr | 305 | |
164 | serge | 306 | align 4 |
307 | proc srv_handler stdcall, ioctl:dword |
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672 | hidnplayr | 308 | mov esi, [ioctl] |
309 | test esi, esi |
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310 | jz .err |
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164 | serge | 311 | |
672 | hidnplayr | 312 | mov edi, [esi+handle] |
313 | cmp [edi+SRV.magic], ' SRV' |
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164 | serge | 314 | jne .fail |
315 | |||
1275 | serge | 316 | cmp [edi+SRV.size], SRV.sizeof |
164 | serge | 317 | jne .fail |
318 | |||
672 | hidnplayr | 319 | stdcall [edi+SRV.srv_proc], esi |
320 | ret |
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164 | serge | 321 | .fail: |
672 | hidnplayr | 322 | xor eax, eax |
323 | not eax |
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324 | mov [esi+output], eax |
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325 | mov [esi+out_size], 4 |
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326 | ret |
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164 | serge | 327 | .err: |
672 | hidnplayr | 328 | xor eax, eax |
329 | not eax |
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330 | ret |
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164 | serge | 331 | endp |
332 | |||
377 | serge | 333 | ; param |
1345 | Lrz | 334 | ; ecx= io_control |
377 | serge | 335 | ; |
336 | ; retval |
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337 | ; eax= error code |
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338 | |||
164 | serge | 339 | align 4 |
377 | serge | 340 | srv_handlerEx: |
1345 | Lrz | 341 | cmp ecx, OS_BASE |
672 | hidnplayr | 342 | jae .fail |
164 | serge | 343 | |
1345 | Lrz | 344 | mov eax, [ecx+handle] |
672 | hidnplayr | 345 | cmp [eax+SRV.magic], ' SRV' |
164 | serge | 346 | jne .fail |
347 | |||
1275 | serge | 348 | cmp [eax+SRV.size], SRV.sizeof |
164 | serge | 349 | jne .fail |
350 | |||
1345 | Lrz | 351 | stdcall [eax+SRV.srv_proc], ecx |
672 | hidnplayr | 352 | ret |
164 | serge | 353 | .fail: |
672 | hidnplayr | 354 | or eax, -1 |
355 | ret |
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164 | serge | 356 | |
357 | restore handle |
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358 | restore io_code |
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359 | restore input |
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360 | restore inp_size |
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361 | restore output |
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362 | restore out_size |
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363 | |||
364 | align 4 |
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365 | proc get_service stdcall, sz_name:dword |
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672 | hidnplayr | 366 | mov eax, [sz_name] |
367 | test eax, eax |
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368 | jnz @F |
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369 | ret |
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164 | serge | 370 | @@: |
672 | hidnplayr | 371 | mov edx, [srv.fd] |
188 | serge | 372 | @@: |
672 | hidnplayr | 373 | cmp edx, srv.fd-SRV_FD_OFFSET |
374 | je .not_load |
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278 | serge | 375 | |
672 | hidnplayr | 376 | stdcall strncmp, edx, [sz_name], 16 |
377 | test eax, eax |
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378 | je .ok |
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164 | serge | 379 | |
672 | hidnplayr | 380 | mov edx, [edx+SRV.fd] |
381 | jmp @B |
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164 | serge | 382 | .not_load: |
672 | hidnplayr | 383 | pop ebp |
384 | jmp load_driver |
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164 | serge | 385 | .ok: |
672 | hidnplayr | 386 | mov eax, edx |
387 | ret |
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164 | serge | 388 | endp |
389 | |||
390 | align 4 |
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740 | serge | 391 | proc reg_service stdcall, name:dword, handler:dword |
164 | serge | 392 | |
819 | serge | 393 | push ebx |
164 | serge | 394 | |
819 | serge | 395 | xor eax, eax |
396 | |||
769 | Rus | 397 | cmp [name], eax |
398 | je .fail |
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740 | serge | 399 | |
769 | Rus | 400 | cmp [handler], eax |
401 | je .fail |
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740 | serge | 402 | |
1275 | serge | 403 | mov eax, SRV.sizeof |
404 | call malloc |
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164 | serge | 405 | test eax, eax |
406 | jz .fail |
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407 | |||
769 | Rus | 408 | push esi |
409 | push edi |
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164 | serge | 410 | mov edi, eax |
769 | Rus | 411 | mov esi, [name] |
1275 | serge | 412 | movsd |
413 | movsd |
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414 | movsd |
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415 | movsd |
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769 | Rus | 416 | pop edi |
417 | pop esi |
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164 | serge | 418 | |
672 | hidnplayr | 419 | mov [eax+SRV.magic], ' SRV' |
1275 | serge | 420 | mov [eax+SRV.size], SRV.sizeof |
278 | serge | 421 | |
672 | hidnplayr | 422 | mov ebx, srv.fd-SRV_FD_OFFSET |
423 | mov edx, [ebx+SRV.fd] |
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424 | mov [eax+SRV.fd], edx |
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425 | mov [eax+SRV.bk], ebx |
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426 | mov [ebx+SRV.fd], eax |
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427 | mov [edx+SRV.bk], eax |
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278 | serge | 428 | |
769 | Rus | 429 | mov ecx, [handler] |
672 | hidnplayr | 430 | mov [eax+SRV.srv_proc], ecx |
769 | Rus | 431 | pop ebx |
432 | ret |
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164 | serge | 433 | .fail: |
434 | xor eax, eax |
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819 | serge | 435 | pop ebx |
769 | Rus | 436 | ret |
740 | serge | 437 | endp |
164 | serge | 438 | |
439 | align 4 |
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440 | proc get_proc stdcall, exp:dword, sz_name:dword |
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441 | |||
672 | hidnplayr | 442 | mov edx, [exp] |
164 | serge | 443 | .next: |
672 | hidnplayr | 444 | mov eax, [edx] |
445 | test eax, eax |
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446 | jz .end |
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164 | serge | 447 | |
672 | hidnplayr | 448 | push edx |
449 | stdcall strncmp, eax, [sz_name], 16 |
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450 | pop edx |
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451 | test eax, eax |
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452 | jz .ok |
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164 | serge | 453 | |
672 | hidnplayr | 454 | add edx,8 |
455 | jmp .next |
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164 | serge | 456 | .ok: |
672 | hidnplayr | 457 | mov eax, [edx+4] |
164 | serge | 458 | .end: |
672 | hidnplayr | 459 | ret |
164 | serge | 460 | endp |
461 | |||
462 | align 4 |
||
463 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
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464 | |||
465 | @@: |
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466 | stdcall strncmp, [pSym], [sz_sym], 8 |
||
467 | test eax,eax |
||
468 | jz .ok |
||
469 | add [pSym], 18 |
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470 | dec [count] |
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471 | jnz @b |
||
472 | xor eax, eax |
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473 | ret |
||
474 | .ok: |
||
1289 | diamond | 475 | mov eax, [pSym] |
476 | mov eax, [eax+8] |
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164 | serge | 477 | ret |
478 | endp |
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479 | |||
480 | align 4 |
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188 | serge | 481 | proc get_curr_task |
672 | hidnplayr | 482 | mov eax,[CURRENT_TASK] |
483 | shl eax, 8 |
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484 | ret |
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188 | serge | 485 | endp |
164 | serge | 486 | |
188 | serge | 487 | align 4 |
488 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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672 | hidnplayr | 489 | locals |
490 | cmd dd ? |
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491 | offset dd ? |
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492 | dd ? |
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493 | count dd ? |
||
494 | buff dd ? |
||
495 | db ? |
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496 | name dd ? |
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497 | endl |
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164 | serge | 498 | |
672 | hidnplayr | 499 | xor eax, eax |
500 | mov ebx, [file_name] |
||
501 | mov ecx, [info] |
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164 | serge | 502 | |
672 | hidnplayr | 503 | mov [cmd], 5 |
504 | mov [offset], eax |
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505 | mov [offset+4], eax |
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506 | mov [count], eax |
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507 | mov [buff], ecx |
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508 | mov byte [buff+4], al |
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509 | mov [name], ebx |
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164 | serge | 510 | |
672 | hidnplayr | 511 | mov eax, 70 |
512 | lea ebx, [cmd] |
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513 | int 0x40 |
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514 | ret |
||
188 | serge | 515 | endp |
164 | serge | 516 | |
188 | serge | 517 | align 4 |
518 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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672 | hidnplayr | 519 | bytes:dword |
520 | locals |
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521 | cmd dd ? |
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522 | offset dd ? |
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523 | dd ? |
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524 | count dd ? |
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525 | buff dd ? |
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526 | db ? |
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527 | name dd ? |
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528 | endl |
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164 | serge | 529 | |
672 | hidnplayr | 530 | xor eax, eax |
531 | mov ebx, [file_name] |
||
532 | mov ecx, [off] |
||
533 | mov edx, [bytes] |
||
534 | mov esi, [buffer] |
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164 | serge | 535 | |
672 | hidnplayr | 536 | mov [cmd], eax |
537 | mov [offset], ecx |
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538 | mov [offset+4], eax |
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539 | mov [count], edx |
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540 | mov [buff], esi |
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541 | mov byte [buff+4], al |
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542 | mov [name], ebx |
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188 | serge | 543 | |
672 | hidnplayr | 544 | pushad |
1491 | Lrz | 545 | lea ebx, [cmd] |
672 | hidnplayr | 546 | call file_system_lfn |
547 | popad |
||
548 | ret |
||
188 | serge | 549 | endp |
550 | |||
363 | serge | 551 | ; description |
552 | ; allocate kernel memory and loads the specified file |
||
553 | ; |
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554 | ; param |
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555 | ; file_name= full path to file |
||
556 | ; |
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557 | ; retval |
||
558 | ; eax= file image in kernel memory |
||
559 | ; ebx= size of file |
||
560 | ; |
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561 | ; warging |
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562 | ; You mast call kernel_free() to delete each file |
||
563 | ; loaded by the load_file() function |
||
564 | |||
188 | serge | 565 | align 4 |
566 | proc load_file stdcall, file_name:dword |
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672 | hidnplayr | 567 | locals |
568 | attr dd ? |
||
569 | flags dd ? |
||
570 | cr_time dd ? |
||
571 | cr_date dd ? |
||
572 | acc_time dd ? |
||
573 | acc_date dd ? |
||
574 | mod_time dd ? |
||
575 | mod_date dd ? |
||
576 | file_size dd ? |
||
188 | serge | 577 | |
672 | hidnplayr | 578 | file dd ? |
579 | file2 dd ? |
||
580 | endl |
||
188 | serge | 581 | |
672 | hidnplayr | 582 | push esi |
583 | push edi |
||
662 | serge | 584 | |
672 | hidnplayr | 585 | lea eax, [attr] |
586 | stdcall get_fileinfo, [file_name], eax |
||
587 | test eax, eax |
||
588 | jnz .fail |
||
164 | serge | 589 | |
672 | hidnplayr | 590 | mov eax, [file_size] |
591 | cmp eax, 1024*1024*16 |
||
592 | ja .fail |
||
206 | serge | 593 | |
672 | hidnplayr | 594 | stdcall kernel_alloc, [file_size] |
595 | mov [file], eax |
||
1452 | serge | 596 | test eax, eax |
597 | jz .fail |
||
164 | serge | 598 | |
672 | hidnplayr | 599 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
600 | cmp ebx, [file_size] |
||
601 | jne .cleanup |
||
211 | serge | 602 | |
672 | hidnplayr | 603 | mov eax, [file] |
604 | cmp dword [eax], 0x4B43504B |
||
605 | jne .exit |
||
606 | mov ebx, [eax+4] |
||
607 | mov [file_size], ebx |
||
608 | stdcall kernel_alloc, ebx |
||
211 | serge | 609 | |
672 | hidnplayr | 610 | test eax, eax |
611 | jz .cleanup |
||
211 | serge | 612 | |
672 | hidnplayr | 613 | mov [file2], eax |
1275 | serge | 614 | pushfd |
615 | cli |
||
672 | hidnplayr | 616 | stdcall unpack, [file], eax |
1275 | serge | 617 | popfd |
672 | hidnplayr | 618 | stdcall kernel_free, [file] |
619 | mov eax, [file2] |
||
620 | mov ebx, [file_size] |
||
211 | serge | 621 | .exit: |
672 | hidnplayr | 622 | push eax |
623 | lea edi, [eax+ebx] ;cleanup remain space |
||
624 | mov ecx, 4096 ;from file end |
||
625 | and ebx, 4095 |
||
626 | jz @f |
||
627 | sub ecx, ebx |
||
628 | xor eax, eax |
||
629 | cld |
||
630 | rep stosb |
||
521 | diamond | 631 | @@: |
672 | hidnplayr | 632 | mov ebx, [file_size] |
633 | pop eax |
||
634 | pop edi |
||
635 | pop esi |
||
636 | ret |
||
188 | serge | 637 | .cleanup: |
672 | hidnplayr | 638 | stdcall kernel_free, [file] |
188 | serge | 639 | .fail: |
672 | hidnplayr | 640 | xor eax, eax |
641 | xor ebx, ebx |
||
642 | pop edi |
||
643 | pop esi |
||
644 | ret |
||
188 | serge | 645 | endp |
164 | serge | 646 | |
188 | serge | 647 | align 4 |
648 | proc get_proc_ex stdcall, proc_name:dword, imports:dword |
||
649 | |||
650 | .look_up: |
||
672 | hidnplayr | 651 | mov edx, [imports] |
652 | test edx, edx |
||
653 | jz .end |
||
654 | mov edx, [edx] |
||
655 | test edx, edx |
||
656 | jz .end |
||
188 | serge | 657 | .next: |
672 | hidnplayr | 658 | mov eax, [edx] |
659 | test eax, eax |
||
660 | jz .next_table |
||
164 | serge | 661 | |
672 | hidnplayr | 662 | push edx |
916 | serge | 663 | stdcall strncmp, eax, [proc_name], 256 |
672 | hidnplayr | 664 | pop edx |
665 | test eax, eax |
||
666 | jz .ok |
||
164 | serge | 667 | |
672 | hidnplayr | 668 | add edx,8 |
669 | jmp .next |
||
188 | serge | 670 | .next_table: |
672 | hidnplayr | 671 | add [imports], 4 |
672 | jmp .look_up |
||
188 | serge | 673 | .ok: |
672 | hidnplayr | 674 | mov eax, [edx+4] |
675 | ret |
||
188 | serge | 676 | .end: |
672 | hidnplayr | 677 | xor eax, eax |
678 | ret |
||
188 | serge | 679 | endp |
164 | serge | 680 | |
188 | serge | 681 | align 4 |
1289 | diamond | 682 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
672 | hidnplayr | 683 | sym_count:dword, strings:dword, imports:dword |
684 | locals |
||
685 | retval dd ? |
||
686 | endl |
||
164 | serge | 687 | |
672 | hidnplayr | 688 | mov edi, [symbols] |
689 | mov [retval], 1 |
||
188 | serge | 690 | .fix: |
672 | hidnplayr | 691 | movzx ebx, [edi+CSYM.SectionNumber] |
692 | test ebx, ebx |
||
693 | jnz .internal |
||
694 | mov eax, dword [edi+CSYM.Name] |
||
695 | test eax, eax |
||
696 | jnz @F |
||
164 | serge | 697 | |
672 | hidnplayr | 698 | mov edi, [edi+4] |
699 | add edi, [strings] |
||
188 | serge | 700 | @@: |
672 | hidnplayr | 701 | push edi |
702 | stdcall get_proc_ex, edi,[imports] |
||
703 | pop edi |
||
164 | serge | 704 | |
672 | hidnplayr | 705 | xor ebx, ebx |
706 | test eax, eax |
||
707 | jnz @F |
||
164 | serge | 708 | |
672 | hidnplayr | 709 | mov esi, msg_unresolved |
710 | call sys_msg_board_str |
||
711 | mov esi, edi |
||
712 | call sys_msg_board_str |
||
713 | mov esi, msg_CR |
||
714 | call sys_msg_board_str |
||
164 | serge | 715 | |
672 | hidnplayr | 716 | mov [retval],0 |
188 | serge | 717 | @@: |
672 | hidnplayr | 718 | mov edi, [symbols] |
719 | mov [edi+CSYM.Value], eax |
||
720 | jmp .next |
||
188 | serge | 721 | .internal: |
672 | hidnplayr | 722 | cmp bx, -1 |
723 | je .next |
||
724 | cmp bx, -2 |
||
725 | je .next |
||
541 | serge | 726 | |
672 | hidnplayr | 727 | dec ebx |
728 | shl ebx, 3 |
||
729 | lea ebx, [ebx+ebx*4] |
||
730 | add ebx, [sec] |
||
188 | serge | 731 | |
672 | hidnplayr | 732 | mov eax, [ebx+CFS.VirtualAddress] |
733 | add [edi+CSYM.Value], eax |
||
188 | serge | 734 | .next: |
672 | hidnplayr | 735 | add edi, CSYM_SIZE |
736 | mov [symbols], edi |
||
737 | dec [sym_count] |
||
738 | jnz .fix |
||
739 | mov eax, [retval] |
||
740 | ret |
||
164 | serge | 741 | endp |
742 | |||
743 | align 4 |
||
1289 | diamond | 744 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
745 | delta:dword |
||
164 | serge | 746 | locals |
672 | hidnplayr | 747 | n_sec dd ? |
164 | serge | 748 | endl |
749 | |||
672 | hidnplayr | 750 | mov eax, [coff] |
751 | movzx ebx, [eax+CFH.nSections] |
||
752 | mov [n_sec], ebx |
||
1289 | diamond | 753 | lea esi, [eax+20] |
188 | serge | 754 | .fix_sec: |
164 | serge | 755 | mov edi, [esi+CFS.PtrReloc] |
672 | hidnplayr | 756 | add edi, [coff] |
164 | serge | 757 | |
672 | hidnplayr | 758 | movzx ecx, [esi+CFS.NumReloc] |
759 | test ecx, ecx |
||
760 | jz .next |
||
1289 | diamond | 761 | .reloc_loop: |
164 | serge | 762 | mov ebx, [edi+CRELOC.SymIndex] |
763 | add ebx,ebx |
||
764 | lea ebx,[ebx+ebx*8] |
||
672 | hidnplayr | 765 | add ebx, [sym] |
164 | serge | 766 | |
672 | hidnplayr | 767 | mov edx, [ebx+CSYM.Value] |
164 | serge | 768 | |
672 | hidnplayr | 769 | cmp [edi+CRELOC.Type], 6 |
770 | je .dir_32 |
||
164 | serge | 771 | |
672 | hidnplayr | 772 | cmp [edi+CRELOC.Type], 20 |
773 | jne .next_reloc |
||
188 | serge | 774 | .rel_32: |
164 | serge | 775 | mov eax, [edi+CRELOC.VirtualAddress] |
672 | hidnplayr | 776 | add eax, [esi+CFS.VirtualAddress] |
777 | sub edx, eax |
||
778 | sub edx, 4 |
||
779 | jmp .fix |
||
188 | serge | 780 | .dir_32: |
781 | mov eax, [edi+CRELOC.VirtualAddress] |
||
672 | hidnplayr | 782 | add eax, [esi+CFS.VirtualAddress] |
188 | serge | 783 | .fix: |
1289 | diamond | 784 | add eax, [delta] |
672 | hidnplayr | 785 | add [eax], edx |
1289 | diamond | 786 | .next_reloc: |
672 | hidnplayr | 787 | add edi, 10 |
788 | dec ecx |
||
1289 | diamond | 789 | jnz .reloc_loop |
188 | serge | 790 | .next: |
1289 | diamond | 791 | add esi, COFF_SECTION_SIZE |
672 | hidnplayr | 792 | dec [n_sec] |
793 | jnz .fix_sec |
||
164 | serge | 794 | .exit: |
795 | ret |
||
796 | endp |
||
797 | |||
1289 | diamond | 798 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
799 | delta:dword |
||
800 | locals |
||
801 | n_sec dd ? |
||
802 | endl |
||
803 | |||
804 | mov eax, [coff] |
||
805 | movzx ebx, [eax+CFH.nSections] |
||
806 | mov [n_sec], ebx |
||
807 | lea esi, [eax+20] |
||
808 | mov edx, [delta] |
||
809 | .fix_sec: |
||
810 | mov edi, [esi+CFS.PtrReloc] |
||
811 | add edi, [coff] |
||
812 | |||
813 | movzx ecx, [esi+CFS.NumReloc] |
||
814 | test ecx, ecx |
||
815 | jz .next |
||
816 | .reloc_loop: |
||
817 | cmp [edi+CRELOC.Type], 6 |
||
818 | jne .next_reloc |
||
819 | .dir_32: |
||
820 | mov eax, [edi+CRELOC.VirtualAddress] |
||
821 | add eax, [esi+CFS.VirtualAddress] |
||
822 | add [eax+edx], edx |
||
823 | .next_reloc: |
||
824 | add edi, 10 |
||
825 | dec ecx |
||
826 | jnz .reloc_loop |
||
827 | .next: |
||
828 | add esi, COFF_SECTION_SIZE |
||
829 | dec [n_sec] |
||
830 | jnz .fix_sec |
||
831 | .exit: |
||
832 | ret |
||
833 | endp |
||
834 | |||
188 | serge | 835 | align 4 |
346 | diamond | 836 | proc load_driver stdcall, driver_name:dword |
672 | hidnplayr | 837 | locals |
838 | coff dd ? |
||
839 | sym dd ? |
||
840 | strings dd ? |
||
841 | img_size dd ? |
||
842 | img_base dd ? |
||
843 | start dd ? |
||
188 | serge | 844 | |
672 | hidnplayr | 845 | exports dd ? ;fake exports table |
846 | dd ? |
||
847 | file_name rb 13+16+4+1 ; '/sys/drivers/ |
||
848 | endl |
||
188 | serge | 849 | |
672 | hidnplayr | 850 | lea edx, [file_name] |
851 | mov dword [edx], '/sys' |
||
852 | mov dword [edx+4], '/dri' |
||
853 | mov dword [edx+8], 'vers' |
||
854 | mov byte [edx+12], '/' |
||
855 | mov esi, [driver_name] |
||
1018 | diamond | 856 | .redo: |
857 | lea edx, [file_name] |
||
672 | hidnplayr | 858 | lea edi, [edx+13] |
859 | mov ecx, 16 |
||
346 | diamond | 860 | @@: |
672 | hidnplayr | 861 | lodsb |
862 | test al, al |
||
863 | jz @f |
||
864 | stosb |
||
865 | loop @b |
||
346 | diamond | 866 | @@: |
672 | hidnplayr | 867 | mov dword [edi], '.obj' |
868 | mov byte [edi+4], 0 |
||
869 | stdcall load_file, edx |
||
214 | serge | 870 | |
672 | hidnplayr | 871 | test eax, eax |
872 | jz .exit |
||
188 | serge | 873 | |
672 | hidnplayr | 874 | mov [coff], eax |
188 | serge | 875 | |
672 | hidnplayr | 876 | movzx ecx, [eax+CFH.nSections] |
877 | xor ebx, ebx |
||
188 | serge | 878 | |
672 | hidnplayr | 879 | lea edx, [eax+20] |
188 | serge | 880 | @@: |
672 | hidnplayr | 881 | add ebx, [edx+CFS.SizeOfRawData] |
882 | add ebx, 15 |
||
883 | and ebx, not 15 |
||
884 | add edx, COFF_SECTION_SIZE |
||
885 | dec ecx |
||
886 | jnz @B |
||
887 | mov [img_size], ebx |
||
188 | serge | 888 | |
672 | hidnplayr | 889 | stdcall kernel_alloc, ebx |
890 | test eax, eax |
||
891 | jz .fail |
||
892 | mov [img_base], eax |
||
188 | serge | 893 | |
672 | hidnplayr | 894 | mov edi, eax |
895 | xor eax, eax |
||
896 | mov ecx, [img_size] |
||
897 | add ecx, 4095 |
||
898 | and ecx, not 4095 |
||
899 | shr ecx, 2 |
||
900 | cld |
||
901 | rep stosd |
||
188 | serge | 902 | |
672 | hidnplayr | 903 | mov edx, [coff] |
904 | movzx ebx, [edx+CFH.nSections] |
||
905 | mov edi, [img_base] |
||
906 | lea eax, [edx+20] |
||
188 | serge | 907 | @@: |
672 | hidnplayr | 908 | mov [eax+CFS.VirtualAddress], edi |
909 | mov esi, [eax+CFS.PtrRawData] |
||
910 | test esi, esi |
||
911 | jnz .copy |
||
912 | add edi, [eax+CFS.SizeOfRawData] |
||
913 | jmp .next |
||
188 | serge | 914 | .copy: |
672 | hidnplayr | 915 | add esi, edx |
916 | mov ecx, [eax+CFS.SizeOfRawData] |
||
917 | cld |
||
918 | rep movsb |
||
188 | serge | 919 | .next: |
672 | hidnplayr | 920 | add edi, 15 |
921 | and edi, not 15 |
||
922 | add eax, COFF_SECTION_SIZE |
||
923 | dec ebx |
||
924 | jnz @B |
||
188 | serge | 925 | |
672 | hidnplayr | 926 | mov ebx, [edx+CFH.pSymTable] |
927 | add ebx, edx |
||
928 | mov [sym], ebx |
||
929 | mov ecx, [edx+CFH.nSymbols] |
||
930 | add ecx,ecx |
||
931 | lea ecx,[ecx+ecx*8] ;ecx*=18 = nSymbols*CSYM_SIZE |
||
932 | add ecx, [sym] |
||
933 | mov [strings], ecx |
||
188 | serge | 934 | |
672 | hidnplayr | 935 | lea ebx, [exports] |
936 | mov dword [ebx], kernel_export |
||
937 | mov dword [ebx+4], 0 |
||
938 | lea eax, [edx+20] |
||
188 | serge | 939 | |
672 | hidnplayr | 940 | stdcall fix_coff_symbols, eax, [sym], [edx+CFH.nSymbols],\ |
941 | [strings], ebx |
||
942 | test eax, eax |
||
943 | jz .link_fail |
||
188 | serge | 944 | |
672 | hidnplayr | 945 | mov ebx, [coff] |
1289 | diamond | 946 | stdcall fix_coff_relocs, ebx, [sym], 0 |
188 | serge | 947 | |
672 | hidnplayr | 948 | stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szVersion |
949 | test eax, eax |
||
950 | jz .link_fail |
||
227 | serge | 951 | |
672 | hidnplayr | 952 | mov eax, [eax] |
953 | shr eax, 16 |
||
954 | cmp eax, DRV_COMPAT |
||
955 | jb .ver_fail |
||
227 | serge | 956 | |
672 | hidnplayr | 957 | cmp eax, DRV_CURRENT |
958 | ja .ver_fail |
||
227 | serge | 959 | |
672 | hidnplayr | 960 | mov ebx, [coff] |
961 | stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szSTART |
||
962 | mov [start], eax |
||
188 | serge | 963 | |
672 | hidnplayr | 964 | stdcall kernel_free, [coff] |
188 | serge | 965 | |
672 | hidnplayr | 966 | mov ebx, [start] |
967 | stdcall ebx, DRV_ENTRY |
||
968 | test eax, eax |
||
969 | jnz .ok |
||
188 | serge | 970 | |
672 | hidnplayr | 971 | stdcall kernel_free, [img_base] |
1018 | diamond | 972 | cmp dword [file_name+13], 'SOUN' |
973 | jnz @f |
||
974 | cmp dword [file_name+17], 'D.ob' |
||
975 | jnz @f |
||
976 | cmp word [file_name+21], 'j' |
||
977 | jnz @f |
||
978 | mov esi, aSis |
||
979 | jmp .redo |
||
980 | @@: |
||
672 | hidnplayr | 981 | xor eax, eax |
982 | ret |
||
188 | serge | 983 | .ok: |
672 | hidnplayr | 984 | mov ebx, [img_base] |
985 | mov [eax+SRV.base], ebx |
||
986 | mov ecx, [start] |
||
987 | mov [eax+SRV.entry], ecx |
||
988 | ret |
||
227 | serge | 989 | |
990 | .ver_fail: |
||
672 | hidnplayr | 991 | mov esi, msg_CR |
992 | call sys_msg_board_str |
||
993 | mov esi, [driver_name] |
||
994 | call sys_msg_board_str |
||
995 | mov esi, msg_CR |
||
996 | call sys_msg_board_str |
||
997 | mov esi, msg_version |
||
998 | call sys_msg_board_str |
||
999 | mov esi, msg_www |
||
1000 | call sys_msg_board_str |
||
1001 | jmp .cleanup |
||
227 | serge | 1002 | |
1003 | .link_fail: |
||
672 | hidnplayr | 1004 | mov esi, msg_module |
1005 | call sys_msg_board_str |
||
1006 | mov esi, [driver_name] |
||
1007 | call sys_msg_board_str |
||
1008 | mov esi, msg_CR |
||
1009 | call sys_msg_board_str |
||
227 | serge | 1010 | .cleanup: |
672 | hidnplayr | 1011 | stdcall kernel_free,[img_base] |
188 | serge | 1012 | .fail: |
672 | hidnplayr | 1013 | stdcall kernel_free, [coff] |
227 | serge | 1014 | .exit: |
672 | hidnplayr | 1015 | xor eax, eax |
1016 | ret |
||
164 | serge | 1017 | endp |
1018 | |||
1296 | diamond | 1019 | ; in: edx -> COFF_SECTION struct |
1020 | ; out: eax = alignment as mask for bits to drop |
||
1021 | coff_get_align: |
||
1022 | ; Rules: |
||
1023 | ; - if alignment is not given, use default = 4K; |
||
1024 | ; - if alignment is given and is no more than 4K, use it; |
||
1025 | ; - if alignment is more than 4K, revert to 4K. |
||
1026 | push ecx |
||
1027 | mov cl, byte [edx+CFS.Characteristics+2] |
||
1028 | mov eax, 1 |
||
1029 | shr cl, 4 |
||
1030 | dec cl |
||
1031 | js .default |
||
1032 | cmp cl, 12 |
||
1033 | jbe @f |
||
1034 | .default: |
||
1035 | mov cl, 12 |
||
1036 | @@: |
||
1037 | shl eax, cl |
||
1038 | pop ecx |
||
1039 | dec eax |
||
1040 | ret |
||
1041 | |||
198 | serge | 1042 | align 4 |
1043 | proc load_library stdcall, file_name:dword |
||
672 | hidnplayr | 1044 | locals |
1289 | diamond | 1045 | fullname rb 260 |
1046 | fileinfo rb 40 |
||
672 | hidnplayr | 1047 | coff dd ? |
1048 | img_base dd ? |
||
1049 | endl |
||
198 | serge | 1050 | |
672 | hidnplayr | 1051 | cli |
198 | serge | 1052 | |
1289 | diamond | 1053 | ; resolve file name |
1054 | mov ebx, [file_name] |
||
1055 | lea edi, [fullname+1] |
||
1056 | mov byte [edi-1], '/' |
||
1057 | stdcall get_full_file_name, edi, 259 |
||
1058 | test al, al |
||
1059 | jz .fail |
||
1060 | |||
1061 | ; scan for required DLL in list of already loaded for this process, |
||
1062 | ; ignore timestamp |
||
1063 | mov esi, [CURRENT_TASK] |
||
1064 | shl esi, 8 |
||
1065 | lea edi, [fullname] |
||
1311 | diamond | 1066 | mov ebx, [esi+SLOT_BASE+APPDATA.dlls_list_ptr] |
1067 | test ebx, ebx |
||
1068 | jz .not_in_process |
||
1069 | mov esi, [ebx+HDLL.fd] |
||
1289 | diamond | 1070 | .scan_in_process: |
1071 | cmp esi, ebx |
||
1072 | jz .not_in_process |
||
1073 | mov eax, [esi+HDLL.parent] |
||
1074 | add eax, DLLDESCR.name |
||
1075 | stdcall strncmp, eax, edi, -1 |
||
672 | hidnplayr | 1076 | test eax, eax |
1289 | diamond | 1077 | jnz .next_in_process |
1078 | ; simple variant: load DLL which is already loaded in this process |
||
1079 | ; just increment reference counters and return address of exports table |
||
1080 | inc [esi+HDLL.refcount] |
||
1081 | mov ecx, [esi+HDLL.parent] |
||
1082 | inc [ecx+DLLDESCR.refcount] |
||
1083 | mov eax, [ecx+DLLDESCR.exports] |
||
1084 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
1085 | add eax, [esi+HDLL.base] |
||
1086 | ret |
||
1087 | .next_in_process: |
||
1311 | diamond | 1088 | mov esi, [esi+HDLL.fd] |
1289 | diamond | 1089 | jmp .scan_in_process |
1090 | .not_in_process: |
||
1091 | |||
1092 | ; scan in full list, compare timestamp |
||
1093 | lea eax, [fileinfo] |
||
1094 | stdcall get_fileinfo, edi, eax |
||
1095 | test eax, eax |
||
1096 | jnz .fail |
||
1097 | mov esi, [dll_list.fd] |
||
1098 | .scan_for_dlls: |
||
1099 | cmp esi, dll_list |
||
1100 | jz .load_new |
||
1101 | lea eax, [esi+DLLDESCR.name] |
||
1102 | stdcall strncmp, eax, edi, -1 |
||
1103 | test eax, eax |
||
1104 | jnz .continue_scan |
||
1105 | .test_prev_dll: |
||
1106 | mov eax, dword [fileinfo+24] ; last modified time |
||
1107 | mov edx, dword [fileinfo+28] ; last modified date |
||
1108 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
1109 | jnz .continue_scan |
||
1110 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
1111 | jz .dll_already_loaded |
||
1112 | .continue_scan: |
||
1113 | mov esi, [esi+DLLDESCR.fd] |
||
1114 | jmp .scan_for_dlls |
||
1115 | |||
1116 | ; new DLL |
||
1117 | .load_new: |
||
1118 | ; load file |
||
1119 | stdcall load_file, edi |
||
1120 | test eax, eax |
||
672 | hidnplayr | 1121 | jz .fail |
1289 | diamond | 1122 | mov [coff], eax |
1123 | mov dword [fileinfo+32], ebx |
||
198 | serge | 1124 | |
1289 | diamond | 1125 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
1126 | mov esi, edi |
||
1127 | mov ecx, -1 |
||
1128 | xor eax, eax |
||
1129 | repnz scasb |
||
1130 | not ecx |
||
1131 | lea eax, [ecx+DLLDESCR.sizeof] |
||
1132 | push ecx |
||
1133 | call malloc |
||
1134 | pop ecx |
||
1135 | test eax, eax |
||
1136 | jz .fail_and_free_coff |
||
1137 | ; save timestamp |
||
1138 | lea edi, [eax+DLLDESCR.name] |
||
1139 | rep movsb |
||
1140 | mov esi, eax |
||
1141 | mov eax, dword [fileinfo+24] |
||
1142 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1143 | mov eax, dword [fileinfo+28] |
||
1144 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1145 | ; initialize DLLDESCR struct |
||
1146 | and dword [esi+DLLDESCR.refcount], 0 ; no HDLLs yet; later it will be incremented |
||
1147 | mov [esi+DLLDESCR.fd], dll_list |
||
1148 | mov eax, [dll_list.bk] |
||
1149 | mov [dll_list.bk], esi |
||
1150 | mov [esi+DLLDESCR.bk], eax |
||
1151 | mov [eax+DLLDESCR.fd], esi |
||
1152 | |||
1153 | ; calculate size of loaded DLL |
||
1154 | mov edx, [coff] |
||
1155 | movzx ecx, [edx+CFH.nSections] |
||
672 | hidnplayr | 1156 | xor ebx, ebx |
198 | serge | 1157 | |
1289 | diamond | 1158 | add edx, 20 |
198 | serge | 1159 | @@: |
1296 | diamond | 1160 | call coff_get_align |
1161 | add ebx, eax |
||
1162 | not eax |
||
1163 | and ebx, eax |
||
672 | hidnplayr | 1164 | add ebx, [edx+CFS.SizeOfRawData] |
1165 | add edx, COFF_SECTION_SIZE |
||
1166 | dec ecx |
||
1167 | jnz @B |
||
1289 | diamond | 1168 | ; it must be nonzero and not too big |
1169 | mov [esi+DLLDESCR.size], ebx |
||
1170 | test ebx, ebx |
||
1171 | jz .fail_and_free_dll |
||
1172 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1173 | ja .fail_and_free_dll |
||
1174 | ; allocate memory for kernel-side image |
||
1175 | stdcall kernel_alloc, ebx |
||
672 | hidnplayr | 1176 | test eax, eax |
1289 | diamond | 1177 | jz .fail_and_free_dll |
1178 | mov [esi+DLLDESCR.data], eax |
||
1179 | ; calculate preferred base address |
||
1180 | add ebx, 0x1FFF |
||
1181 | and ebx, not 0xFFF |
||
1182 | mov ecx, [dll_cur_addr] |
||
1183 | lea edx, [ecx+ebx] |
||
1184 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1185 | jb @f |
||
1186 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1187 | lea edx, [ecx+ebx] |
||
1188 | @@: |
||
1189 | mov [esi+DLLDESCR.defaultbase], ecx |
||
1190 | mov [dll_cur_addr], edx |
||
198 | serge | 1191 | |
1289 | diamond | 1192 | ; copy sections and set correct values for VirtualAddress'es in headers |
1193 | push esi |
||
672 | hidnplayr | 1194 | mov edx, [coff] |
1195 | movzx ebx, [edx+CFH.nSections] |
||
1289 | diamond | 1196 | mov edi, eax |
1197 | add edx, 20 |
||
1198 | cld |
||
198 | serge | 1199 | @@: |
1296 | diamond | 1200 | call coff_get_align |
1201 | add ecx, eax |
||
1202 | add edi, eax |
||
1203 | not eax |
||
1204 | and ecx, eax |
||
1205 | and edi, eax |
||
1289 | diamond | 1206 | mov [edx+CFS.VirtualAddress], ecx |
1207 | add ecx, [edx+CFS.SizeOfRawData] |
||
1208 | mov esi, [edx+CFS.PtrRawData] |
||
1209 | push ecx |
||
1210 | mov ecx, [edx+CFS.SizeOfRawData] |
||
672 | hidnplayr | 1211 | test esi, esi |
1212 | jnz .copy |
||
1296 | diamond | 1213 | xor eax, eax |
1289 | diamond | 1214 | rep stosb |
672 | hidnplayr | 1215 | jmp .next |
198 | serge | 1216 | .copy: |
1289 | diamond | 1217 | add esi, [coff] |
672 | hidnplayr | 1218 | rep movsb |
198 | serge | 1219 | .next: |
1289 | diamond | 1220 | pop ecx |
1221 | add edx, COFF_SECTION_SIZE |
||
672 | hidnplayr | 1222 | dec ebx |
1223 | jnz @B |
||
1289 | diamond | 1224 | pop esi |
198 | serge | 1225 | |
1289 | diamond | 1226 | ; save some additional data from COFF file |
1227 | ; later we will use COFF header, headers for sections and symbol table |
||
1228 | ; and also relocations table for all sections |
||
1229 | mov edx, [coff] |
||
672 | hidnplayr | 1230 | mov ebx, [edx+CFH.pSymTable] |
1289 | diamond | 1231 | mov edi, dword [fileinfo+32] |
1232 | sub edi, ebx |
||
1233 | jc .fail_and_free_data |
||
1234 | mov [esi+DLLDESCR.symbols_lim], edi |
||
672 | hidnplayr | 1235 | add ebx, edx |
1289 | diamond | 1236 | movzx ecx, [edx+CFH.nSections] |
1237 | lea ecx, [ecx*5] |
||
1238 | lea edi, [edi+ecx*8+20] |
||
1239 | add edx, 20 |
||
1240 | @@: |
||
1241 | movzx eax, [edx+CFS.NumReloc] |
||
1242 | lea eax, [eax*5] |
||
1243 | lea edi, [edi+eax*2] |
||
1244 | add edx, COFF_SECTION_SIZE |
||
1245 | sub ecx, 5 |
||
1246 | jnz @b |
||
1247 | stdcall kernel_alloc, edi |
||
1248 | test eax, eax |
||
1249 | jz .fail_and_free_data |
||
1250 | mov edx, [coff] |
||
1251 | movzx ecx, [edx+CFH.nSections] |
||
1252 | lea ecx, [ecx*5] |
||
1253 | lea ecx, [ecx*2+5] |
||
1254 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1255 | push esi |
||
1256 | mov esi, edx |
||
1257 | mov edi, eax |
||
1258 | rep movsd |
||
1259 | pop esi |
||
1260 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1261 | push esi |
||
672 | hidnplayr | 1262 | mov ecx, [edx+CFH.nSymbols] |
1289 | diamond | 1263 | mov [esi+DLLDESCR.symbols_num], ecx |
1264 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1265 | mov esi, ebx |
||
1266 | rep movsb |
||
1267 | pop esi |
||
1268 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1269 | push esi |
||
1270 | movzx eax, [edx+CFH.nSections] |
||
1271 | lea edx, [ebx+20] |
||
1272 | @@: |
||
1273 | movzx ecx, [edx+CFS.NumReloc] |
||
1274 | lea ecx, [ecx*5] |
||
1275 | mov esi, [edx+CFS.PtrReloc] |
||
1276 | mov [edx+CFS.PtrReloc], edi |
||
1277 | sub [edx+CFS.PtrReloc], ebx |
||
1278 | add esi, [coff] |
||
1279 | shr ecx, 1 |
||
1280 | rep movsd |
||
1281 | adc ecx, ecx |
||
1282 | rep movsw |
||
1283 | add edx, COFF_SECTION_SIZE |
||
1284 | dec eax |
||
1285 | jnz @b |
||
1286 | pop esi |
||
198 | serge | 1287 | |
1289 | diamond | 1288 | ; fixup symbols |
1289 | mov edx, ebx |
||
1290 | mov eax, [ebx+CFH.nSymbols] |
||
1291 | add edx, 20 |
||
1292 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1293 | lea ecx, [ecx*9] |
||
1294 | add ecx, ecx |
||
1295 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
198 | serge | 1296 | |
1289 | diamond | 1297 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax,\ |
1298 | ecx, 0 |
||
1299 | ; test eax, eax |
||
1300 | ; jnz @F |
||
1301 | ; |
||
1302 | ;@@: |
||
1303 | |||
1304 | stdcall get_coff_sym,[esi+DLLDESCR.symbols_ptr],[ebx+CFH.nSymbols],szEXPORTS |
||
672 | hidnplayr | 1305 | test eax, eax |
1306 | jnz @F |
||
198 | serge | 1307 | |
1289 | diamond | 1308 | stdcall get_coff_sym,[esi+DLLDESCR.symbols_ptr],[ebx+CFH.nSymbols],sz_EXPORTS |
198 | serge | 1309 | @@: |
1289 | diamond | 1310 | mov [esi+DLLDESCR.exports], eax |
198 | serge | 1311 | |
1289 | diamond | 1312 | ; fix relocs in the hidden copy in kernel memory to default address |
1313 | ; it is first fix; usually this will be enough, but second fix |
||
1314 | ; can be necessary if real load address will not equal assumption |
||
1315 | mov eax, [esi+DLLDESCR.data] |
||
1316 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1317 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
198 | serge | 1318 | |
1289 | diamond | 1319 | stdcall kernel_free, [coff] |
916 | serge | 1320 | |
1289 | diamond | 1321 | .dll_already_loaded: |
1322 | inc [esi+DLLDESCR.refcount] |
||
1323 | push esi |
||
1324 | call init_heap |
||
1325 | pop esi |
||
1326 | |||
1327 | mov edi, [esi+DLLDESCR.size] |
||
1328 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1329 | test eax, eax |
||
1330 | jnz @f |
||
1331 | stdcall user_alloc, edi |
||
1332 | test eax, eax |
||
1333 | jz .fail_and_dereference |
||
917 | diamond | 1334 | @@: |
1289 | diamond | 1335 | mov [img_base], eax |
1311 | diamond | 1336 | mov eax, HDLL.sizeof |
1337 | call malloc |
||
1338 | test eax, eax |
||
1339 | jz .fail_and_free_user |
||
1289 | diamond | 1340 | mov ebx, [CURRENT_TASK] |
1341 | shl ebx, 5 |
||
1311 | diamond | 1342 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
1343 | mov [eax+HDLL.pid], edx |
||
1344 | push eax |
||
1345 | call init_dlls_in_thread |
||
1346 | pop ebx |
||
1289 | diamond | 1347 | test eax, eax |
1311 | diamond | 1348 | jz .fail_and_free_user |
1349 | mov edx, [eax+HDLL.fd] |
||
1350 | mov [ebx+HDLL.fd], edx |
||
1351 | mov [ebx+HDLL.bk], eax |
||
1352 | mov [eax+HDLL.fd], ebx |
||
1353 | mov [edx+HDLL.bk], ebx |
||
1354 | mov eax, ebx |
||
1289 | diamond | 1355 | mov ebx, [img_base] |
1356 | mov [eax+HDLL.base], ebx |
||
1357 | mov [eax+HDLL.size], edi |
||
1358 | mov [eax+HDLL.refcount], 1 |
||
1359 | mov [eax+HDLL.parent], esi |
||
1360 | mov edx, ebx |
||
1361 | shr edx, 12 |
||
1362 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1363 | ; copy entries of page table from kernel-side image to usermode |
||
1364 | ; use copy-on-write for user-mode image, so map as readonly |
||
1365 | xor edi, edi |
||
1366 | mov ecx, [esi+DLLDESCR.data] |
||
1367 | shr ecx, 12 |
||
1368 | .map_pages_loop: |
||
1369 | mov eax, [page_tabs+ecx*4] |
||
1370 | and eax, not 0xFFF |
||
1371 | or al, PG_USER |
||
1372 | xchg eax, [page_tabs+edx*4] |
||
1373 | test al, 1 |
||
1374 | jz @f |
||
1375 | call free_page |
||
1376 | @@: |
||
1377 | invlpg [ebx+edi] |
||
1378 | inc ecx |
||
1379 | inc edx |
||
1380 | add edi, 0x1000 |
||
1381 | cmp edi, [esi+DLLDESCR.size] |
||
1382 | jb .map_pages_loop |
||
1383 | |||
1384 | ; if real user-mode base is not equal to preferred base, relocate image |
||
1385 | sub ebx, [esi+DLLDESCR.defaultbase] |
||
1386 | jz @f |
||
1387 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1388 | @@: |
||
1389 | |||
1390 | mov eax, [esi+DLLDESCR.exports] |
||
1391 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1392 | add eax, [img_base] |
||
1393 | ret |
||
1394 | .fail_and_free_data: |
||
1395 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1396 | .fail_and_free_dll: |
||
1397 | mov eax, esi |
||
1398 | call free |
||
1399 | .fail_and_free_coff: |
||
672 | hidnplayr | 1400 | stdcall kernel_free, [coff] |
198 | serge | 1401 | .fail: |
672 | hidnplayr | 1402 | xor eax, eax |
1403 | ret |
||
1289 | diamond | 1404 | .fail_and_free_user: |
1405 | stdcall user_free, [img_base] |
||
1406 | .fail_and_dereference: |
||
1407 | mov eax, 1 ; delete 1 reference |
||
1408 | call dereference_dll |
||
1409 | xor eax, eax |
||
1410 | ret |
||
198 | serge | 1411 | endp |
1412 | |||
1311 | diamond | 1413 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
1414 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1415 | ; kept in sync for all threads of one process. |
||
1416 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1417 | ; NULL if memory allocation failed |
||
1418 | init_dlls_in_thread: |
||
1419 | mov ebx, [current_slot] |
||
1420 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
1421 | test eax, eax |
||
1422 | jnz .ret |
||
1423 | push [ebx+APPDATA.dir_table] |
||
1424 | mov eax, 8 |
||
1425 | call malloc |
||
1426 | pop edx |
||
1427 | test eax, eax |
||
1428 | jz .ret |
||
1429 | mov [eax], eax |
||
1430 | mov [eax+4], eax |
||
1431 | mov ecx, [TASK_COUNT] |
||
1432 | mov ebx, SLOT_BASE+256 |
||
1433 | .set: |
||
1434 | cmp [ebx+APPDATA.dir_table], edx |
||
1435 | jnz @f |
||
1436 | mov [ebx+APPDATA.dlls_list_ptr], eax |
||
1437 | @@: |
||
1438 | add ebx, 256 |
||
1439 | dec ecx |
||
1440 | jnz .set |
||
1441 | .ret: |
||
1442 | ret |
||
1443 | |||
1289 | diamond | 1444 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
1445 | dereference_dll: |
||
1446 | sub [esi+DLLDESCR.refcount], eax |
||
1447 | jnz .ret |
||
1448 | mov eax, [esi+DLLDESCR.fd] |
||
1449 | mov edx, [esi+DLLDESCR.bk] |
||
1450 | mov [eax+DLLDESCR.bk], edx |
||
1451 | mov [edx+DLLDESCR.fd], eax |
||
1292 | diamond | 1452 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
1289 | diamond | 1453 | stdcall kernel_free, [esi+DLLDESCR.data] |
1454 | mov eax, esi |
||
1455 | call free |
||
1456 | .ret: |
||
1457 | ret |
||
1458 | |||
1459 | destroy_hdll: |
||
1311 | diamond | 1460 | push ebx ecx esi edi |
1289 | diamond | 1461 | push eax |
1462 | mov ebx, [eax+HDLL.base] |
||
1463 | mov esi, [eax+HDLL.parent] |
||
1464 | mov edx, [esi+DLLDESCR.size] |
||
1292 | diamond | 1465 | ; The following actions require the context of application where HDLL is mapped. |
1466 | ; However, destroy_hdll can be called in the context of OS thread when |
||
1467 | ; cleaning up objects created by the application which is destroyed. |
||
1468 | ; So remember current cr3 and set it to page table of target. |
||
1311 | diamond | 1469 | mov eax, [ecx+APPDATA.dir_table] |
1292 | diamond | 1470 | ; Because we cheat with cr3, disable interrupts: task switch would restore |
1471 | ; page table from APPDATA of current thread. |
||
1472 | ; Also set [current_slot] because it is used by user_free. |
||
1473 | pushf |
||
1474 | cli |
||
1475 | push [current_slot] |
||
1311 | diamond | 1476 | mov [current_slot], ecx |
1477 | mov ecx, cr3 |
||
1478 | push ecx |
||
1479 | mov cr3, eax |
||
1292 | diamond | 1480 | push ebx ; argument for user_free |
1289 | diamond | 1481 | mov eax, ebx |
1482 | shr ebx, 12 |
||
1483 | push ebx |
||
1484 | mov esi, [esi+DLLDESCR.data] |
||
1485 | shr esi, 12 |
||
1486 | .unmap_loop: |
||
1487 | push eax |
||
1488 | mov eax, 2 |
||
1489 | xchg eax, [page_tabs+ebx*4] |
||
1292 | diamond | 1490 | mov ecx, [page_tabs+esi*4] |
1491 | and eax, not 0xFFF |
||
1492 | and ecx, not 0xFFF |
||
1493 | cmp eax, ecx |
||
1494 | jz @f |
||
1289 | diamond | 1495 | call free_page |
1496 | @@: |
||
1497 | pop eax |
||
1498 | invlpg [eax] |
||
1499 | add eax, 0x1000 |
||
1500 | inc ebx |
||
1501 | inc esi |
||
1502 | sub edx, 0x1000 |
||
1503 | ja .unmap_loop |
||
1292 | diamond | 1504 | pop ebx |
1289 | diamond | 1505 | and dword [page_tabs+(ebx-1)*4], not DONT_FREE_BLOCK |
1292 | diamond | 1506 | call user_free |
1507 | ; Restore context. |
||
1508 | pop eax |
||
1509 | mov cr3, eax |
||
1510 | pop [current_slot] |
||
1511 | popf |
||
1512 | ; Ok, cheating is done. |
||
1513 | pop eax |
||
1514 | push eax |
||
1289 | diamond | 1515 | mov esi, [eax+HDLL.parent] |
1516 | mov eax, [eax+HDLL.refcount] |
||
1517 | call dereference_dll |
||
1518 | pop eax |
||
1311 | diamond | 1519 | mov edx, [eax+HDLL.bk] |
1520 | mov ebx, [eax+HDLL.fd] |
||
1521 | mov [ebx+HDLL.bk], edx |
||
1522 | mov [edx+HDLL.fd], ebx |
||
1523 | call free |
||
1524 | pop edi esi ecx ebx |
||
1289 | diamond | 1525 | ret |
1526 | |||
1311 | diamond | 1527 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
1528 | destroy_all_hdlls: |
||
1529 | test esi, esi |
||
1530 | jz .ret |
||
1531 | .loop: |
||
1532 | mov eax, [esi+HDLL.fd] |
||
1533 | cmp eax, esi |
||
1534 | jz free |
||
1535 | call destroy_hdll |
||
1536 | jmp .loop |
||
1537 | .ret: |
||
1538 | ret |
||
1539 | |||
214 | serge | 1540 | align 4 |
1275 | serge | 1541 | stop_all_services: |
1542 | push ebp |
||
672 | hidnplayr | 1543 | mov edx, [srv.fd] |
214 | serge | 1544 | .next: |
672 | hidnplayr | 1545 | cmp edx, srv.fd-SRV_FD_OFFSET |
1546 | je .done |
||
1547 | cmp [edx+SRV.magic], ' SRV' |
||
1548 | jne .next |
||
1275 | serge | 1549 | cmp [edx+SRV.size], SRV.sizeof |
672 | hidnplayr | 1550 | jne .next |
732 | serge | 1551 | |
769 | Rus | 1552 | mov ebx, [edx+SRV.entry] |
672 | hidnplayr | 1553 | mov edx, [edx+SRV.fd] |
769 | Rus | 1554 | test ebx, ebx |
1555 | jz .next |
||
732 | serge | 1556 | |
769 | Rus | 1557 | push edx |
1316 | serge | 1558 | mov ebp, esp |
1559 | push 0 |
||
1560 | push -1 |
||
1561 | call ebx |
||
1562 | mov esp, ebp |
||
672 | hidnplayr | 1563 | pop edx |
1564 | jmp .next |
||
278 | serge | 1565 | .done: |
1275 | serge | 1566 | pop ebp |
672 | hidnplayr | 1567 | ret |
198 | serge | 1568 | |
281 | serge | 1569 | ; param |
291 | serge | 1570 | ; eax= size |
1571 | ; ebx= pid |
||
214 | serge | 1572 | |
281 | serge | 1573 | align 4 |
1574 | create_kernel_object: |
||
1575 | |||
672 | hidnplayr | 1576 | push ebx |
1577 | call malloc |
||
1578 | pop ebx |
||
1579 | test eax, eax |
||
1580 | jz .fail |
||
281 | serge | 1581 | |
672 | hidnplayr | 1582 | mov ecx,[current_slot] |
1583 | add ecx, APP_OBJ_OFFSET |
||
281 | serge | 1584 | |
672 | hidnplayr | 1585 | pushfd |
1586 | cli |
||
1587 | mov edx, [ecx+APPOBJ.fd] |
||
1588 | mov [eax+APPOBJ.fd], edx |
||
1589 | mov [eax+APPOBJ.bk], ecx |
||
1590 | mov [eax+APPOBJ.pid], ebx |
||
281 | serge | 1591 | |
672 | hidnplayr | 1592 | mov [ecx+APPOBJ.fd], eax |
1593 | mov [edx+APPOBJ.bk], eax |
||
1594 | popfd |
||
281 | serge | 1595 | .fail: |
672 | hidnplayr | 1596 | ret |
281 | serge | 1597 | |
1598 | ; param |
||
1599 | ; eax= object |
||
1600 | |||
1601 | align 4 |
||
1602 | destroy_kernel_object: |
||
1603 | |||
672 | hidnplayr | 1604 | pushfd |
1605 | cli |
||
1606 | mov ebx, [eax+APPOBJ.fd] |
||
1607 | mov ecx, [eax+APPOBJ.bk] |
||
1608 | mov [ebx+APPOBJ.bk], ecx |
||
1609 | mov [ecx+APPOBJ.fd], ebx |
||
1610 | popfd |
||
281 | serge | 1611 | |
672 | hidnplayr | 1612 | xor edx, edx ;clear common header |
1613 | mov [eax], edx |
||
1614 | mov [eax+4], edx |
||
1615 | mov [eax+8], edx |
||
1616 | mov [eax+12], edx |
||
1617 | mov [eax+16], edx |
||
281 | serge | 1618 | |
672 | hidnplayr | 1619 | call free ;release object memory |
1620 | ret |
||
281 | serge | 1621 | |
1622 | |||
164 | serge | 1623 | |
465 | serge | 1624 | if 0 |
164 | serge | 1625 | |
465 | serge | 1626 | irq: |
188 | serge | 1627 | |
465 | serge | 1628 | .irq0: |
672 | hidnplayr | 1629 | pusfd |
1630 | pushad |
||
1631 | push IRQ_0 |
||
1632 | jmp .master |
||
465 | serge | 1633 | .irq_1: |
672 | hidnplayr | 1634 | pusfd |
1635 | pushad |
||
1636 | push IRQ_1 |
||
1637 | jmp .master |
||
465 | serge | 1638 | |
1639 | .master: |
||
672 | hidnplayr | 1640 | mov ax, app_data |
1641 | mov ds, eax |
||
1642 | mov es, eax |
||
1643 | mov ebx, [esp+4] ;IRQ_xx |
||
1644 | mov eax, [irq_handlers+ebx+4] |
||
1645 | call intr_handler |
||
1646 | mov ecx, [esp+4] |
||
1647 | cmp [irq_actids+ecx*4], 0 |
||
1648 | je @F |
||
1649 | in al, 0x21 |
||
1650 | bts eax, ecx |
||
1651 | out 0x21, al |
||
1652 | mov al, 0x20 |
||
1653 | out 0x20, al |
||
1654 | jmp .restart |
||
465 | serge | 1655 | |
1656 | .slave: |
||
672 | hidnplayr | 1657 | mov ax, app_data |
1658 | mov ds, eax |
||
1659 | mov es, eax |
||
1660 | mov ebx, [esp+4] ;IRQ_xx |
||
1661 | mov eax, [irq_handlers+ebx+4] |
||
1662 | call intr_handler |
||
1663 | mov ecx, [esp+4] |
||
1664 | sub ecx, 8 |
||
1665 | cmp [irq_actids+ecx*4], 0 |
||
1666 | je @F |
||
1667 | in al, 0xA1 |
||
1668 | bts eax, ecx |
||
1669 | out 0xA1, al |
||
1670 | mov al, 0x20 |
||
1671 | out 0xA0, al |
||
1672 | out 0x20, al |
||
465 | serge | 1673 | .restart: |
672 | hidnplayr | 1674 | mov ebx, [next_slot] |
1675 | test ebx, ebx |
||
1676 | jz @F |
||
1677 | mov [next_task],0 |
||
1678 | mov esi, [prev_slot] |
||
1679 | call do_change_task |
||
1680 | add esp, 4 |
||
1681 | iretd |
||
465 | serge | 1682 | |
1683 | end if |
||
1684 |