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