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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2465 | Serge | 3 | ;; Copyright (C) KolibriOS team 2004-2012. 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: 4423 $ |
9 | |||
10 | |||
465 | serge | 11 | DRV_COMPAT equ 5 ;minimal required drivers version |
2106 | 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 | |
774 | Rus | 18 | |
164 | serge | 19 | align 4 |
20 | proc get_notify stdcall, p_ev:dword |
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21 | |||
22 | .wait: |
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2434 | Serge | 23 | mov ebx, [current_slot] |
24 | test dword [ebx+APPDATA.event_mask], EVENT_NOTIFY |
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25 | jz @f |
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26 | and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY |
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27 | mov edi, [p_ev] |
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28 | mov dword [edi], EV_INTR |
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29 | mov eax, [ebx+APPDATA.event] |
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30 | mov dword [edi+4], eax |
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31 | ret |
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164 | serge | 32 | @@: |
2434 | Serge | 33 | call change_task |
34 | jmp .wait |
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164 | serge | 35 | endp |
36 | |||
37 | |||
2434 | Serge | 38 | handle equ IOCTL.handle |
39 | io_code equ IOCTL.io_code |
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40 | input equ IOCTL.input |
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41 | inp_size equ IOCTL.inp_size |
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42 | output equ IOCTL.output |
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43 | out_size equ IOCTL.out_size |
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164 | serge | 44 | |
672 | hidnplayr | 45 | |
164 | serge | 46 | align 4 |
47 | proc srv_handler stdcall, ioctl:dword |
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2434 | Serge | 48 | mov esi, [ioctl] |
49 | test esi, esi |
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50 | jz .err |
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164 | serge | 51 | |
2434 | Serge | 52 | mov edi, [esi+handle] |
53 | cmp [edi+SRV.magic], ' SRV' |
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54 | jne .fail |
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164 | serge | 55 | |
2434 | Serge | 56 | cmp [edi+SRV.size], sizeof.SRV |
57 | jne .fail |
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164 | serge | 58 | |
3555 | Serge | 59 | ; stdcall [edi+SRV.srv_proc], esi |
60 | mov eax, [edi+SRV.srv_proc] |
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61 | test eax, eax |
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62 | jz .fail |
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63 | stdcall eax, esi |
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2434 | Serge | 64 | ret |
164 | serge | 65 | .fail: |
2434 | Serge | 66 | xor eax, eax |
67 | not eax |
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68 | mov [esi+output], eax |
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69 | mov [esi+out_size], 4 |
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70 | ret |
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164 | serge | 71 | .err: |
2434 | Serge | 72 | xor eax, eax |
73 | not eax |
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74 | ret |
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164 | serge | 75 | endp |
76 | |||
377 | serge | 77 | ; param |
1345 | Lrz | 78 | ; ecx= io_control |
377 | serge | 79 | ; |
80 | ; retval |
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81 | ; eax= error code |
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82 | |||
164 | serge | 83 | align 4 |
377 | serge | 84 | srv_handlerEx: |
2434 | Serge | 85 | cmp ecx, OS_BASE |
86 | jae .fail |
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164 | serge | 87 | |
2434 | Serge | 88 | mov eax, [ecx+handle] |
89 | cmp [eax+SRV.magic], ' SRV' |
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90 | jne .fail |
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164 | serge | 91 | |
2434 | Serge | 92 | cmp [eax+SRV.size], sizeof.SRV |
93 | jne .fail |
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164 | serge | 94 | |
3555 | Serge | 95 | ; stdcall [eax+SRV.srv_proc], ecx |
96 | mov eax, [eax+SRV.srv_proc] |
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97 | test eax, eax |
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98 | jz .fail |
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99 | stdcall eax, ecx |
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2434 | Serge | 100 | ret |
164 | serge | 101 | .fail: |
2434 | Serge | 102 | or eax, -1 |
103 | ret |
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164 | serge | 104 | |
105 | restore handle |
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106 | restore io_code |
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107 | restore input |
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108 | restore inp_size |
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109 | restore output |
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110 | restore out_size |
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111 | |||
112 | align 4 |
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113 | proc get_service stdcall, sz_name:dword |
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2434 | Serge | 114 | mov eax, [sz_name] |
115 | test eax, eax |
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116 | jnz @F |
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117 | ret |
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164 | serge | 118 | @@: |
2434 | Serge | 119 | mov edx, [srv.fd] |
188 | serge | 120 | @@: |
2434 | Serge | 121 | cmp edx, srv.fd-SRV.fd |
122 | je .not_load |
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278 | serge | 123 | |
2434 | Serge | 124 | stdcall strncmp, edx, [sz_name], 16 |
125 | test eax, eax |
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126 | je .ok |
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164 | serge | 127 | |
2434 | Serge | 128 | mov edx, [edx+SRV.fd] |
129 | jmp @B |
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164 | serge | 130 | .not_load: |
4423 | Serge | 131 | mov eax, [sz_name] |
132 | ; Try to load .dll driver first. If not, fallback to .obj. |
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133 | push edi |
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134 | sub esp, 36 |
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135 | mov edi, esp |
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136 | mov dword [edi], '/sys' |
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137 | mov dword [edi+4], '/dri' |
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138 | mov dword [edi+8], 'vers' |
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139 | mov byte [edi+12], '/' |
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140 | @@: |
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141 | mov dl, [eax] |
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142 | mov [edi+13], dl |
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143 | inc eax |
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144 | inc edi |
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145 | test dl, dl |
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146 | jnz @b |
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147 | mov dword [edi+12], '.sys' |
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148 | mov byte [edi+16], 0 |
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149 | mov edi, esp |
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150 | stdcall load_pe_driver, edi, 0 |
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151 | add esp, 36 |
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152 | pop edi |
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153 | test eax, eax |
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154 | jnz .nothing |
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2434 | Serge | 155 | pop ebp |
156 | jmp load_driver |
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164 | serge | 157 | .ok: |
2434 | Serge | 158 | mov eax, edx |
4423 | Serge | 159 | .nothing: |
2434 | Serge | 160 | ret |
164 | serge | 161 | endp |
162 | |||
3555 | Serge | 163 | reg_service: |
164 | xor eax, eax |
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165 | mov ecx, [esp+8] |
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166 | jecxz .nothing |
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167 | push sizeof.SRV |
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168 | push ecx |
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169 | pushd [esp+12] |
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170 | call reg_service_ex |
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171 | .nothing: |
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172 | ret 8 |
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164 | serge | 173 | |
3555 | Serge | 174 | reg_usb_driver: |
175 | push sizeof.USBSRV |
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176 | pushd [esp+12] |
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177 | pushd [esp+12] |
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178 | call reg_service_ex |
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179 | test eax, eax |
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180 | jz .nothing |
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181 | mov ecx, [esp+12] |
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182 | mov [eax+USBSRV.usb_func], ecx |
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183 | .nothing: |
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184 | ret 12 |
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185 | |||
186 | proc reg_service_ex stdcall, name:dword, handler:dword, srvsize:dword |
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187 | |||
2434 | Serge | 188 | push ebx |
164 | serge | 189 | |
2434 | Serge | 190 | xor eax, eax |
819 | serge | 191 | |
2434 | Serge | 192 | cmp [name], eax |
193 | je .fail |
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740 | serge | 194 | |
3555 | Serge | 195 | ; cmp [handler], eax |
196 | ; je .fail |
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740 | serge | 197 | |
3555 | Serge | 198 | mov eax, [srvsize] |
2434 | Serge | 199 | call malloc |
200 | test eax, eax |
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201 | jz .fail |
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164 | serge | 202 | |
2434 | Serge | 203 | push esi |
204 | push edi |
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205 | mov edi, eax |
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206 | mov esi, [name] |
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207 | movsd |
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208 | movsd |
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209 | movsd |
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210 | movsd |
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211 | pop edi |
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212 | pop esi |
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164 | serge | 213 | |
2434 | Serge | 214 | mov [eax+SRV.magic], ' SRV' |
215 | mov [eax+SRV.size], sizeof.SRV |
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278 | serge | 216 | |
2434 | Serge | 217 | mov ebx, srv.fd-SRV.fd |
218 | mov edx, [ebx+SRV.fd] |
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219 | mov [eax+SRV.fd], edx |
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220 | mov [eax+SRV.bk], ebx |
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221 | mov [ebx+SRV.fd], eax |
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222 | mov [edx+SRV.bk], eax |
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278 | serge | 223 | |
2434 | Serge | 224 | mov ecx, [handler] |
225 | mov [eax+SRV.srv_proc], ecx |
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226 | pop ebx |
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227 | ret |
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164 | serge | 228 | .fail: |
2434 | Serge | 229 | xor eax, eax |
230 | pop ebx |
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231 | ret |
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740 | serge | 232 | endp |
164 | serge | 233 | |
234 | align 4 |
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235 | proc get_proc stdcall, exp:dword, sz_name:dword |
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236 | |||
2434 | Serge | 237 | mov edx, [exp] |
164 | serge | 238 | .next: |
2434 | Serge | 239 | mov eax, [edx] |
240 | test eax, eax |
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241 | jz .end |
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164 | serge | 242 | |
2434 | Serge | 243 | push edx |
244 | stdcall strncmp, eax, [sz_name], 16 |
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245 | pop edx |
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246 | test eax, eax |
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247 | jz .ok |
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164 | serge | 248 | |
2434 | Serge | 249 | add edx, 8 |
250 | jmp .next |
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164 | serge | 251 | .ok: |
2434 | Serge | 252 | mov eax, [edx+4] |
164 | serge | 253 | .end: |
2434 | Serge | 254 | ret |
164 | serge | 255 | endp |
256 | |||
257 | align 4 |
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258 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
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259 | |||
260 | @@: |
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2434 | Serge | 261 | stdcall strncmp, [pSym], [sz_sym], 8 |
262 | test eax, eax |
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263 | jz .ok |
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264 | add [pSym], 18 |
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265 | dec [count] |
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266 | jnz @b |
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267 | xor eax, eax |
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268 | ret |
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164 | serge | 269 | .ok: |
2434 | Serge | 270 | mov eax, [pSym] |
271 | mov eax, [eax+8] |
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272 | ret |
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164 | serge | 273 | endp |
274 | |||
275 | align 4 |
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188 | serge | 276 | proc get_curr_task |
2434 | Serge | 277 | mov eax, [CURRENT_TASK] |
278 | shl eax, 8 |
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279 | ret |
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188 | serge | 280 | endp |
164 | serge | 281 | |
188 | serge | 282 | align 4 |
283 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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2434 | Serge | 284 | locals |
285 | cmd dd ? |
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286 | offset dd ? |
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287 | dd ? |
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288 | count dd ? |
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289 | buff dd ? |
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290 | db ? |
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291 | name dd ? |
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292 | endl |
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164 | serge | 293 | |
2434 | Serge | 294 | xor eax, eax |
295 | mov ebx, [file_name] |
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296 | mov ecx, [info] |
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164 | serge | 297 | |
2434 | Serge | 298 | mov [cmd], 5 |
299 | mov [offset], eax |
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300 | mov [offset+4], eax |
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301 | mov [count], eax |
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302 | mov [buff], ecx |
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303 | mov byte [buff+4], al |
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304 | mov [name], ebx |
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164 | serge | 305 | |
2434 | Serge | 306 | mov eax, 70 |
307 | lea ebx, [cmd] |
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308 | int 0x40 |
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309 | ret |
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188 | serge | 310 | endp |
164 | serge | 311 | |
188 | serge | 312 | align 4 |
313 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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2434 | Serge | 314 | bytes:dword |
315 | locals |
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316 | cmd dd ? |
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317 | offset dd ? |
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318 | dd ? |
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319 | count dd ? |
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320 | buff dd ? |
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321 | db ? |
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322 | name dd ? |
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323 | endl |
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164 | serge | 324 | |
2434 | Serge | 325 | xor eax, eax |
326 | mov ebx, [file_name] |
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327 | mov ecx, [off] |
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328 | mov edx, [bytes] |
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329 | mov esi, [buffer] |
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164 | serge | 330 | |
2434 | Serge | 331 | mov [cmd], eax |
332 | mov [offset], ecx |
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333 | mov [offset+4], eax |
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334 | mov [count], edx |
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335 | mov [buff], esi |
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336 | mov byte [buff+4], al |
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337 | mov [name], ebx |
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188 | serge | 338 | |
2434 | Serge | 339 | pushad |
340 | lea ebx, [cmd] |
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3500 | Serge | 341 | call file_system_lfn_protected |
2434 | Serge | 342 | popad |
343 | ret |
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188 | serge | 344 | endp |
345 | |||
363 | serge | 346 | ; description |
347 | ; allocate kernel memory and loads the specified file |
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348 | ; |
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349 | ; param |
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4423 | Serge | 350 | ; file_name= path to file |
363 | serge | 351 | ; |
352 | ; retval |
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353 | ; eax= file image in kernel memory |
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354 | ; ebx= size of file |
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355 | ; |
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356 | ; warging |
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357 | ; You mast call kernel_free() to delete each file |
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358 | ; loaded by the load_file() function |
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359 | |||
188 | serge | 360 | align 4 |
361 | proc load_file stdcall, file_name:dword |
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2434 | Serge | 362 | locals |
363 | attr dd ? |
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364 | flags dd ? |
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365 | cr_time dd ? |
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366 | cr_date dd ? |
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367 | acc_time dd ? |
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368 | acc_date dd ? |
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369 | mod_time dd ? |
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370 | mod_date dd ? |
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371 | file_size dd ? |
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188 | serge | 372 | |
2434 | Serge | 373 | file dd ? |
374 | file2 dd ? |
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375 | endl |
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188 | serge | 376 | |
2434 | Serge | 377 | push esi |
378 | push edi |
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662 | serge | 379 | |
2434 | Serge | 380 | lea eax, [attr] |
381 | stdcall get_fileinfo, [file_name], eax |
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382 | test eax, eax |
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383 | jnz .fail |
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164 | serge | 384 | |
2434 | Serge | 385 | mov eax, [file_size] |
386 | cmp eax, 1024*1024*16 |
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387 | ja .fail |
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206 | serge | 388 | |
2434 | Serge | 389 | stdcall kernel_alloc, [file_size] |
390 | mov [file], eax |
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391 | test eax, eax |
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392 | jz .fail |
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164 | serge | 393 | |
2434 | Serge | 394 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
395 | cmp ebx, [file_size] |
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396 | jne .cleanup |
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211 | serge | 397 | |
2434 | Serge | 398 | mov eax, [file] |
399 | cmp dword [eax], 0x4B43504B |
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400 | jne .exit |
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401 | mov ebx, [eax+4] |
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402 | mov [file_size], ebx |
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403 | stdcall kernel_alloc, ebx |
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211 | serge | 404 | |
2434 | Serge | 405 | test eax, eax |
406 | jz .cleanup |
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211 | serge | 407 | |
2434 | Serge | 408 | mov [file2], eax |
2987 | Serge | 409 | |
410 | pushad |
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411 | mov ecx, unpack_mutex |
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412 | call mutex_lock |
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413 | popad |
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414 | |||
2434 | Serge | 415 | stdcall unpack, [file], eax |
2987 | Serge | 416 | |
417 | pushad |
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418 | mov ecx, unpack_mutex |
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419 | call mutex_unlock |
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420 | popad |
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421 | |||
2434 | Serge | 422 | stdcall kernel_free, [file] |
423 | mov eax, [file2] |
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424 | mov ebx, [file_size] |
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211 | serge | 425 | .exit: |
2434 | Serge | 426 | push eax |
427 | lea edi, [eax+ebx] ;cleanup remain space |
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428 | mov ecx, 4096 ;from file end |
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429 | and ebx, 4095 |
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430 | jz @f |
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431 | sub ecx, ebx |
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432 | xor eax, eax |
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433 | cld |
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434 | rep stosb |
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521 | diamond | 435 | @@: |
2434 | Serge | 436 | mov ebx, [file_size] |
437 | pop eax |
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438 | pop edi |
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439 | pop esi |
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440 | ret |
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188 | serge | 441 | .cleanup: |
2434 | Serge | 442 | stdcall kernel_free, [file] |
188 | serge | 443 | .fail: |
2434 | Serge | 444 | xor eax, eax |
445 | xor ebx, ebx |
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446 | pop edi |
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447 | pop esi |
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448 | ret |
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188 | serge | 449 | endp |
164 | serge | 450 | |
3908 | Serge | 451 | ; description |
452 | ; allocate user memory and loads the specified file |
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453 | ; |
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454 | ; param |
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455 | ; file_name= path to file |
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456 | ; |
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457 | ; retval |
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458 | ; eax= file image in user memory |
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459 | ; ebx= size of file |
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460 | ; |
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461 | ; warging |
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462 | ; You mast call kernel_free() to delete each file |
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463 | ; loaded by the load_file() function |
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464 | |||
465 | align 4 |
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466 | proc load_file_umode stdcall, file_name:dword |
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467 | locals |
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468 | attr dd ? |
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469 | flags dd ? |
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470 | cr_time dd ? |
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471 | cr_date dd ? |
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472 | acc_time dd ? |
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473 | acc_date dd ? |
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474 | mod_time dd ? |
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475 | mod_date dd ? |
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476 | file_size dd ? |
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477 | |||
478 | km_file dd ? |
||
479 | um_file dd ? |
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480 | endl |
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481 | |||
482 | push esi |
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483 | push edi |
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484 | push ebx |
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485 | |||
486 | lea eax, [attr] |
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487 | stdcall get_fileinfo, [file_name], eax ;find file and get info |
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488 | test eax, eax |
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489 | jnz .err_1 |
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490 | |||
491 | mov eax, [file_size] |
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492 | cmp eax, 1024*1024*16 ;to be enough for anybody (c) |
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493 | ja .err_1 |
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494 | ;it is very likely that the file is packed |
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495 | stdcall kernel_alloc, [file_size] ;with kpack, so allocate memory from kernel heap |
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496 | mov [km_file], eax |
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497 | test eax, eax |
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498 | jz .err_1 |
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499 | |||
500 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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501 | cmp ebx, [file_size] |
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502 | |||
503 | jne .err_2 |
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504 | |||
505 | mov eax, [km_file] |
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506 | cmp dword [eax], 0x4B43504B ; check kpack signature |
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507 | jne .raw_file |
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508 | |||
509 | mov ebx, [eax+4] ;get real size of file |
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510 | mov [file_size], ebx |
||
4265 | Serge | 511 | stdcall user_alloc, ebx ;and allocate space from user heap |
3908 | Serge | 512 | mov [um_file], eax |
513 | test eax, eax |
||
514 | jz .err_2 |
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515 | |||
4265 | Serge | 516 | mov edx, [file_size] ;preallocate page memory |
517 | shr eax, 10 |
||
518 | lea edi, [page_tabs+eax] |
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519 | add edx, 4095 |
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520 | shr edx, 12 |
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521 | @@: |
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522 | call alloc_page |
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523 | test eax, eax |
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524 | jz .err_3 |
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525 | |||
526 | or eax, PG_UW |
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527 | stosd |
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528 | dec edx |
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529 | jnz @B |
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530 | |||
3908 | Serge | 531 | pushad |
532 | mov ecx, unpack_mutex |
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533 | call mutex_lock |
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534 | |||
535 | stdcall unpack, [km_file], [um_file] |
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536 | |||
537 | mov ecx, unpack_mutex |
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538 | call mutex_unlock |
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539 | popad |
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540 | |||
541 | stdcall kernel_free, [km_file] ;we don't need packed file anymore |
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542 | .exit: |
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4265 | Serge | 543 | |
544 | mov edi, [um_file] |
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545 | mov esi, [um_file] |
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546 | mov eax, [file_size] |
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547 | mov edx, eax |
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548 | |||
549 | add edi, eax ;cleanup remain space |
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550 | mov ecx, 4096 ;from file end |
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551 | and eax, 4095 |
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552 | jz @f |
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553 | sub ecx, eax |
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554 | xor eax, eax |
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555 | cld |
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556 | rep stosb |
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557 | @@: |
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3908 | Serge | 558 | mov eax, [um_file] |
559 | |||
560 | pop ebx |
||
561 | pop edi |
||
562 | pop esi |
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563 | ret |
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564 | |||
565 | .raw_file: ; sometimes we load unpacked file |
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566 | stdcall user_alloc, ebx ; allocate space from user heap |
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567 | mov [um_file], eax |
||
568 | |||
569 | test eax, eax |
||
570 | jz .err_2 |
||
571 | |||
572 | shr eax, 10 ; and remap pages. |
||
573 | |||
574 | mov ecx, [file_size] |
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575 | add ecx, 4095 |
||
576 | shr ecx, 12 |
||
577 | |||
578 | mov esi, [km_file] |
||
579 | shr esi, 10 |
||
580 | add esi, page_tabs |
||
581 | |||
582 | lea edi, [page_tabs+eax] |
||
583 | |||
584 | cld |
||
585 | @@: |
||
586 | lodsd |
||
587 | and eax, 0xFFFFF000 |
||
4265 | Serge | 588 | or eax, PG_UW |
3908 | Serge | 589 | stosd |
590 | loop @B |
||
591 | |||
592 | stdcall free_kernel_space, [km_file] ; release allocated kernel space |
||
593 | jmp .exit ; physical pages still in use |
||
4265 | Serge | 594 | .err_3: |
595 | stdcall user_free, [um_file] |
||
3908 | Serge | 596 | .err_2: |
597 | stdcall kernel_free, [km_file] |
||
598 | .err_1: |
||
599 | xor eax, eax |
||
600 | xor edx, edx |
||
601 | |||
602 | pop ebx |
||
603 | pop edi |
||
604 | pop esi |
||
605 | ret |
||
606 | endp |
||
607 | |||
608 | |||
2987 | Serge | 609 | uglobal |
188 | serge | 610 | align 4 |
2987 | Serge | 611 | unpack_mutex MUTEX |
612 | endg |
||
613 | |||
614 | align 4 |
||
3908 | Serge | 615 | proc get_proc_ex stdcall uses ebx esi, proc_name:dword, imports:dword |
616 | mov ebx, [imports] |
||
617 | test ebx, ebx |
||
618 | jz .end |
||
619 | xor esi, esi |
||
188 | serge | 620 | .look_up: |
164 | serge | 621 | |
3908 | Serge | 622 | mov eax, [ebx+32] |
623 | mov eax, [OS_BASE+eax+esi*4] |
||
624 | add eax, OS_BASE |
||
2434 | Serge | 625 | stdcall strncmp, eax, [proc_name], 256 |
626 | test eax, eax |
||
627 | jz .ok |
||
164 | serge | 628 | |
3908 | Serge | 629 | inc esi |
630 | cmp esi, [ebx+24] |
||
631 | jb .look_up |
||
188 | serge | 632 | .end: |
2434 | Serge | 633 | xor eax, eax |
634 | ret |
||
3908 | Serge | 635 | .ok: |
636 | mov eax, [ebx+28] |
||
637 | mov eax, [OS_BASE+eax+esi*4] |
||
638 | add eax, OS_BASE |
||
639 | ret |
||
188 | serge | 640 | endp |
164 | serge | 641 | |
188 | serge | 642 | align 4 |
1289 | diamond | 643 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
2434 | Serge | 644 | sym_count:dword, strings:dword, imports:dword |
645 | locals |
||
646 | retval dd ? |
||
647 | endl |
||
164 | serge | 648 | |
2434 | Serge | 649 | mov edi, [symbols] |
650 | mov [retval], 1 |
||
188 | serge | 651 | .fix: |
2434 | Serge | 652 | movzx ebx, [edi+COFF_SYM.SectionNumber] |
653 | test ebx, ebx |
||
654 | jnz .internal |
||
655 | mov eax, dword [edi+COFF_SYM.Name] |
||
656 | test eax, eax |
||
657 | jnz @F |
||
164 | serge | 658 | |
2434 | Serge | 659 | mov edi, [edi+4] |
660 | add edi, [strings] |
||
188 | serge | 661 | @@: |
2434 | Serge | 662 | push edi |
663 | stdcall get_proc_ex, edi, [imports] |
||
664 | pop edi |
||
164 | serge | 665 | |
2434 | Serge | 666 | xor ebx, ebx |
667 | test eax, eax |
||
668 | jnz @F |
||
164 | serge | 669 | |
2434 | Serge | 670 | mov esi, msg_unresolved |
671 | call sys_msg_board_str |
||
672 | mov esi, edi |
||
673 | call sys_msg_board_str |
||
674 | mov esi, msg_CR |
||
675 | call sys_msg_board_str |
||
164 | serge | 676 | |
2434 | Serge | 677 | mov [retval], 0 |
188 | serge | 678 | @@: |
2434 | Serge | 679 | mov edi, [symbols] |
680 | mov [edi+COFF_SYM.Value], eax |
||
681 | jmp .next |
||
188 | serge | 682 | .internal: |
2434 | Serge | 683 | cmp bx, -1 |
684 | je .next |
||
685 | cmp bx, -2 |
||
686 | je .next |
||
541 | serge | 687 | |
2434 | Serge | 688 | dec ebx |
689 | shl ebx, 3 |
||
690 | lea ebx, [ebx+ebx*4] |
||
691 | add ebx, [sec] |
||
188 | serge | 692 | |
2434 | Serge | 693 | mov eax, [ebx+COFF_SECTION.VirtualAddress] |
694 | add [edi+COFF_SYM.Value], eax |
||
188 | serge | 695 | .next: |
2434 | Serge | 696 | add edi, sizeof.COFF_SYM |
697 | mov [symbols], edi |
||
698 | dec [sym_count] |
||
699 | jnz .fix |
||
700 | mov eax, [retval] |
||
701 | ret |
||
164 | serge | 702 | endp |
703 | |||
704 | align 4 |
||
1289 | diamond | 705 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 706 | delta:dword |
707 | locals |
||
708 | n_sec dd ? |
||
709 | endl |
||
164 | serge | 710 | |
2434 | Serge | 711 | mov eax, [coff] |
712 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
713 | mov [n_sec], ebx |
||
714 | lea esi, [eax+20] |
||
188 | serge | 715 | .fix_sec: |
2434 | Serge | 716 | mov edi, [esi+COFF_SECTION.PtrReloc] |
717 | add edi, [coff] |
||
164 | serge | 718 | |
2434 | Serge | 719 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
720 | test ecx, ecx |
||
721 | jz .next |
||
1289 | diamond | 722 | .reloc_loop: |
2434 | Serge | 723 | mov ebx, [edi+COFF_RELOC.SymIndex] |
724 | add ebx, ebx |
||
725 | lea ebx, [ebx+ebx*8] |
||
726 | add ebx, [sym] |
||
164 | serge | 727 | |
2434 | Serge | 728 | mov edx, [ebx+COFF_SYM.Value] |
164 | serge | 729 | |
2434 | Serge | 730 | cmp [edi+COFF_RELOC.Type], 6 |
731 | je .dir_32 |
||
164 | serge | 732 | |
2434 | Serge | 733 | cmp [edi+COFF_RELOC.Type], 20 |
734 | jne .next_reloc |
||
188 | serge | 735 | .rel_32: |
2434 | Serge | 736 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
737 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
738 | sub edx, eax |
||
739 | sub edx, 4 |
||
740 | jmp .fix |
||
188 | serge | 741 | .dir_32: |
2434 | Serge | 742 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
743 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
188 | serge | 744 | .fix: |
2434 | Serge | 745 | add eax, [delta] |
746 | add [eax], edx |
||
1289 | diamond | 747 | .next_reloc: |
2434 | Serge | 748 | add edi, 10 |
749 | dec ecx |
||
750 | jnz .reloc_loop |
||
188 | serge | 751 | .next: |
2434 | Serge | 752 | add esi, sizeof.COFF_SECTION |
753 | dec [n_sec] |
||
754 | jnz .fix_sec |
||
164 | serge | 755 | .exit: |
2434 | Serge | 756 | ret |
164 | serge | 757 | endp |
758 | |||
2106 | serge | 759 | align 4 |
1289 | diamond | 760 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 761 | delta:dword |
762 | locals |
||
763 | n_sec dd ? |
||
764 | endl |
||
1289 | diamond | 765 | |
2434 | Serge | 766 | mov eax, [coff] |
767 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
768 | mov [n_sec], ebx |
||
769 | lea esi, [eax+20] |
||
770 | mov edx, [delta] |
||
1289 | diamond | 771 | .fix_sec: |
2434 | Serge | 772 | mov edi, [esi+COFF_SECTION.PtrReloc] |
773 | add edi, [coff] |
||
1289 | diamond | 774 | |
2434 | Serge | 775 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
776 | test ecx, ecx |
||
777 | jz .next |
||
1289 | diamond | 778 | .reloc_loop: |
2434 | Serge | 779 | cmp [edi+COFF_RELOC.Type], 6 |
780 | jne .next_reloc |
||
1289 | diamond | 781 | .dir_32: |
2434 | Serge | 782 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
783 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
784 | add [eax+edx], edx |
||
1289 | diamond | 785 | .next_reloc: |
2434 | Serge | 786 | add edi, 10 |
787 | dec ecx |
||
788 | jnz .reloc_loop |
||
1289 | diamond | 789 | .next: |
2434 | Serge | 790 | add esi, sizeof.COFF_SECTION |
791 | dec [n_sec] |
||
792 | jnz .fix_sec |
||
1289 | diamond | 793 | .exit: |
2434 | Serge | 794 | ret |
1289 | diamond | 795 | endp |
796 | |||
188 | serge | 797 | align 4 |
346 | diamond | 798 | proc load_driver stdcall, driver_name:dword |
2434 | Serge | 799 | locals |
800 | coff dd ? |
||
801 | sym dd ? |
||
802 | strings dd ? |
||
803 | img_size dd ? |
||
804 | img_base dd ? |
||
805 | start dd ? |
||
188 | serge | 806 | |
2434 | Serge | 807 | file_name rb 13+16+4+1 ; '/sys/drivers/ |
808 | endl |
||
188 | serge | 809 | |
2434 | Serge | 810 | lea edx, [file_name] |
811 | mov dword [edx], '/sys' |
||
812 | mov dword [edx+4], '/dri' |
||
813 | mov dword [edx+8], 'vers' |
||
814 | mov byte [edx+12], '/' |
||
815 | mov esi, [driver_name] |
||
1018 | diamond | 816 | .redo: |
2434 | Serge | 817 | lea edx, [file_name] |
818 | lea edi, [edx+13] |
||
819 | mov ecx, 16 |
||
346 | diamond | 820 | @@: |
2434 | Serge | 821 | lodsb |
822 | test al, al |
||
823 | jz @f |
||
824 | stosb |
||
825 | loop @b |
||
346 | diamond | 826 | @@: |
2434 | Serge | 827 | mov dword [edi], '.obj' |
828 | mov byte [edi+4], 0 |
||
829 | stdcall load_file, edx |
||
214 | serge | 830 | |
2434 | Serge | 831 | test eax, eax |
832 | jz .exit |
||
188 | serge | 833 | |
2434 | Serge | 834 | mov [coff], eax |
188 | serge | 835 | |
2434 | Serge | 836 | movzx ecx, [eax+COFF_HEADER.nSections] |
837 | xor ebx, ebx |
||
188 | serge | 838 | |
2434 | Serge | 839 | lea edx, [eax+20] |
188 | serge | 840 | @@: |
2434 | Serge | 841 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
842 | add ebx, 15 |
||
843 | and ebx, not 15 |
||
844 | add edx, sizeof.COFF_SECTION |
||
845 | dec ecx |
||
846 | jnz @B |
||
847 | mov [img_size], ebx |
||
188 | serge | 848 | |
2434 | Serge | 849 | stdcall kernel_alloc, ebx |
850 | test eax, eax |
||
851 | jz .fail |
||
852 | mov [img_base], eax |
||
188 | serge | 853 | |
2434 | Serge | 854 | mov edi, eax |
855 | xor eax, eax |
||
856 | mov ecx, [img_size] |
||
857 | add ecx, 4095 |
||
858 | and ecx, not 4095 |
||
859 | shr ecx, 2 |
||
860 | cld |
||
861 | rep stosd |
||
188 | serge | 862 | |
2434 | Serge | 863 | mov edx, [coff] |
864 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
865 | mov edi, [img_base] |
||
866 | lea eax, [edx+20] |
||
188 | serge | 867 | @@: |
2434 | Serge | 868 | mov [eax+COFF_SECTION.VirtualAddress], edi |
869 | mov esi, [eax+COFF_SECTION.PtrRawData] |
||
870 | test esi, esi |
||
871 | jnz .copy |
||
872 | add edi, [eax+COFF_SECTION.SizeOfRawData] |
||
873 | jmp .next |
||
188 | serge | 874 | .copy: |
2434 | Serge | 875 | add esi, edx |
876 | mov ecx, [eax+COFF_SECTION.SizeOfRawData] |
||
877 | cld |
||
878 | rep movsb |
||
188 | serge | 879 | .next: |
2434 | Serge | 880 | add edi, 15 |
881 | and edi, not 15 |
||
882 | add eax, sizeof.COFF_SECTION |
||
883 | dec ebx |
||
884 | jnz @B |
||
188 | serge | 885 | |
2434 | Serge | 886 | mov ebx, [edx+COFF_HEADER.pSymTable] |
887 | add ebx, edx |
||
888 | mov [sym], ebx |
||
889 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
890 | add ecx, ecx |
||
891 | lea ecx, [ecx+ecx*8];ecx*=18 = nSymbols*CSYM_SIZE |
||
892 | add ecx, [sym] |
||
893 | mov [strings], ecx |
||
188 | serge | 894 | |
2434 | Serge | 895 | lea eax, [edx+20] |
188 | serge | 896 | |
2434 | Serge | 897 | stdcall fix_coff_symbols, eax, [sym], [edx+COFF_HEADER.nSymbols], \ |
3908 | Serge | 898 | [strings], __exports |
2434 | Serge | 899 | test eax, eax |
900 | jz .link_fail |
||
188 | serge | 901 | |
2434 | Serge | 902 | mov ebx, [coff] |
903 | stdcall fix_coff_relocs, ebx, [sym], 0 |
||
188 | serge | 904 | |
2434 | Serge | 905 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szVersion |
906 | test eax, eax |
||
907 | jz .link_fail |
||
227 | serge | 908 | |
2434 | Serge | 909 | mov eax, [eax] |
910 | shr eax, 16 |
||
911 | cmp eax, DRV_COMPAT |
||
912 | jb .ver_fail |
||
227 | serge | 913 | |
2434 | Serge | 914 | cmp eax, DRV_CURRENT |
915 | ja .ver_fail |
||
227 | serge | 916 | |
2434 | Serge | 917 | mov ebx, [coff] |
918 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szSTART |
||
919 | mov [start], eax |
||
188 | serge | 920 | |
2434 | Serge | 921 | stdcall kernel_free, [coff] |
188 | serge | 922 | |
2434 | Serge | 923 | mov ebx, [start] |
924 | stdcall ebx, DRV_ENTRY |
||
925 | test eax, eax |
||
926 | jnz .ok |
||
188 | serge | 927 | |
2434 | Serge | 928 | stdcall kernel_free, [img_base] |
3232 | Serge | 929 | |
2434 | Serge | 930 | xor eax, eax |
931 | ret |
||
188 | serge | 932 | .ok: |
2434 | Serge | 933 | mov ebx, [img_base] |
934 | mov [eax+SRV.base], ebx |
||
935 | mov ecx, [start] |
||
936 | mov [eax+SRV.entry], ecx |
||
937 | ret |
||
227 | serge | 938 | |
939 | .ver_fail: |
||
2434 | Serge | 940 | mov esi, msg_CR |
941 | call sys_msg_board_str |
||
942 | mov esi, [driver_name] |
||
943 | call sys_msg_board_str |
||
944 | mov esi, msg_CR |
||
945 | call sys_msg_board_str |
||
946 | mov esi, msg_version |
||
947 | call sys_msg_board_str |
||
948 | mov esi, msg_www |
||
949 | call sys_msg_board_str |
||
950 | jmp .cleanup |
||
227 | serge | 951 | |
952 | .link_fail: |
||
2434 | Serge | 953 | mov esi, msg_module |
954 | call sys_msg_board_str |
||
955 | mov esi, [driver_name] |
||
956 | call sys_msg_board_str |
||
957 | mov esi, msg_CR |
||
958 | call sys_msg_board_str |
||
227 | serge | 959 | .cleanup: |
2434 | Serge | 960 | stdcall kernel_free, [img_base] |
188 | serge | 961 | .fail: |
2434 | Serge | 962 | stdcall kernel_free, [coff] |
227 | serge | 963 | .exit: |
2434 | Serge | 964 | xor eax, eax |
965 | ret |
||
164 | serge | 966 | endp |
967 | |||
1296 | diamond | 968 | ; in: edx -> COFF_SECTION struct |
969 | ; out: eax = alignment as mask for bits to drop |
||
970 | coff_get_align: |
||
971 | ; Rules: |
||
972 | ; - if alignment is not given, use default = 4K; |
||
973 | ; - if alignment is given and is no more than 4K, use it; |
||
974 | ; - if alignment is more than 4K, revert to 4K. |
||
2434 | Serge | 975 | push ecx |
976 | mov cl, byte [edx+COFF_SECTION.Characteristics+2] |
||
977 | mov eax, 1 |
||
978 | shr cl, 4 |
||
979 | dec cl |
||
980 | js .default |
||
981 | cmp cl, 12 |
||
982 | jbe @f |
||
1296 | diamond | 983 | .default: |
2434 | Serge | 984 | mov cl, 12 |
1296 | diamond | 985 | @@: |
2434 | Serge | 986 | shl eax, cl |
987 | pop ecx |
||
988 | dec eax |
||
989 | ret |
||
1296 | diamond | 990 | |
198 | serge | 991 | align 4 |
992 | proc load_library stdcall, file_name:dword |
||
2434 | Serge | 993 | locals |
994 | fullname rb 260 |
||
995 | fileinfo rb 40 |
||
996 | coff dd ? |
||
997 | img_base dd ? |
||
998 | endl |
||
198 | serge | 999 | |
1289 | diamond | 1000 | ; resolve file name |
2434 | Serge | 1001 | mov ebx, [file_name] |
1002 | lea edi, [fullname+1] |
||
1003 | mov byte [edi-1], '/' |
||
1004 | stdcall get_full_file_name, edi, 259 |
||
1005 | test al, al |
||
1006 | jz .fail |
||
1289 | diamond | 1007 | |
1008 | ; scan for required DLL in list of already loaded for this process, |
||
1009 | ; ignore timestamp |
||
3908 | Serge | 1010 | cli |
1011 | |||
2434 | Serge | 1012 | mov esi, [CURRENT_TASK] |
1013 | shl esi, 8 |
||
1014 | lea edi, [fullname] |
||
1015 | mov ebx, [esi+SLOT_BASE+APPDATA.dlls_list_ptr] |
||
1016 | test ebx, ebx |
||
1017 | jz .not_in_process |
||
1018 | mov esi, [ebx+HDLL.fd] |
||
1289 | diamond | 1019 | .scan_in_process: |
2434 | Serge | 1020 | cmp esi, ebx |
1021 | jz .not_in_process |
||
1022 | mov eax, [esi+HDLL.parent] |
||
1023 | add eax, DLLDESCR.name |
||
1024 | stdcall strncmp, eax, edi, -1 |
||
1025 | test eax, eax |
||
1026 | jnz .next_in_process |
||
1289 | diamond | 1027 | ; simple variant: load DLL which is already loaded in this process |
1028 | ; just increment reference counters and return address of exports table |
||
2434 | Serge | 1029 | inc [esi+HDLL.refcount] |
1030 | mov ecx, [esi+HDLL.parent] |
||
1031 | inc [ecx+DLLDESCR.refcount] |
||
1032 | mov eax, [ecx+DLLDESCR.exports] |
||
1033 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
1034 | add eax, [esi+HDLL.base] |
||
3908 | Serge | 1035 | sti |
2434 | Serge | 1036 | ret |
1289 | diamond | 1037 | .next_in_process: |
2434 | Serge | 1038 | mov esi, [esi+HDLL.fd] |
1039 | jmp .scan_in_process |
||
1289 | diamond | 1040 | .not_in_process: |
1041 | |||
1042 | ; scan in full list, compare timestamp |
||
3908 | Serge | 1043 | sti |
2434 | Serge | 1044 | lea eax, [fileinfo] |
1045 | stdcall get_fileinfo, edi, eax |
||
1046 | test eax, eax |
||
1047 | jnz .fail |
||
3908 | Serge | 1048 | cli |
2434 | Serge | 1049 | mov esi, [dll_list.fd] |
1289 | diamond | 1050 | .scan_for_dlls: |
2434 | Serge | 1051 | cmp esi, dll_list |
1052 | jz .load_new |
||
1053 | lea eax, [esi+DLLDESCR.name] |
||
1054 | stdcall strncmp, eax, edi, -1 |
||
1055 | test eax, eax |
||
1056 | jnz .continue_scan |
||
1289 | diamond | 1057 | .test_prev_dll: |
2434 | Serge | 1058 | mov eax, dword [fileinfo+24]; last modified time |
1059 | mov edx, dword [fileinfo+28]; last modified date |
||
1060 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
1061 | jnz .continue_scan |
||
1062 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
1063 | jz .dll_already_loaded |
||
1289 | diamond | 1064 | .continue_scan: |
2434 | Serge | 1065 | mov esi, [esi+DLLDESCR.fd] |
1066 | jmp .scan_for_dlls |
||
1289 | diamond | 1067 | |
1068 | ; new DLL |
||
1069 | .load_new: |
||
3908 | Serge | 1070 | sti |
1289 | diamond | 1071 | ; load file |
2434 | Serge | 1072 | stdcall load_file, edi |
1073 | test eax, eax |
||
1074 | jz .fail |
||
1075 | mov [coff], eax |
||
1076 | mov dword [fileinfo+32], ebx |
||
198 | serge | 1077 | |
1289 | diamond | 1078 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
2434 | Serge | 1079 | mov esi, edi |
1080 | mov ecx, -1 |
||
1081 | xor eax, eax |
||
1082 | repnz scasb |
||
1083 | not ecx |
||
1084 | lea eax, [ecx+sizeof.DLLDESCR] |
||
1085 | push ecx |
||
1086 | call malloc |
||
1087 | pop ecx |
||
1088 | test eax, eax |
||
1089 | jz .fail_and_free_coff |
||
1289 | diamond | 1090 | ; save timestamp |
2434 | Serge | 1091 | lea edi, [eax+DLLDESCR.name] |
1092 | rep movsb |
||
1093 | mov esi, eax |
||
1094 | mov eax, dword [fileinfo+24] |
||
1095 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1096 | mov eax, dword [fileinfo+28] |
||
1097 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1289 | diamond | 1098 | |
1099 | ; calculate size of loaded DLL |
||
2434 | Serge | 1100 | mov edx, [coff] |
1101 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1102 | xor ebx, ebx |
||
198 | serge | 1103 | |
2434 | Serge | 1104 | add edx, 20 |
198 | serge | 1105 | @@: |
2434 | Serge | 1106 | call coff_get_align |
1107 | add ebx, eax |
||
1108 | not eax |
||
1109 | and ebx, eax |
||
1110 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
||
1111 | add edx, sizeof.COFF_SECTION |
||
1112 | dec ecx |
||
1113 | jnz @B |
||
1289 | diamond | 1114 | ; it must be nonzero and not too big |
2434 | Serge | 1115 | mov [esi+DLLDESCR.size], ebx |
1116 | test ebx, ebx |
||
1117 | jz .fail_and_free_dll |
||
1118 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1119 | ja .fail_and_free_dll |
||
1289 | diamond | 1120 | ; allocate memory for kernel-side image |
2434 | Serge | 1121 | stdcall kernel_alloc, ebx |
1122 | test eax, eax |
||
1123 | jz .fail_and_free_dll |
||
1124 | mov [esi+DLLDESCR.data], eax |
||
1289 | diamond | 1125 | ; calculate preferred base address |
2434 | Serge | 1126 | add ebx, 0x1FFF |
1127 | and ebx, not 0xFFF |
||
1128 | mov ecx, [dll_cur_addr] |
||
1129 | lea edx, [ecx+ebx] |
||
1130 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1131 | jb @f |
||
1132 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1133 | lea edx, [ecx+ebx] |
||
1289 | diamond | 1134 | @@: |
2434 | Serge | 1135 | mov [esi+DLLDESCR.defaultbase], ecx |
1136 | mov [dll_cur_addr], edx |
||
198 | serge | 1137 | |
1289 | diamond | 1138 | ; copy sections and set correct values for VirtualAddress'es in headers |
2434 | Serge | 1139 | push esi |
1140 | mov edx, [coff] |
||
1141 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
1142 | mov edi, eax |
||
1143 | add edx, 20 |
||
1144 | cld |
||
198 | serge | 1145 | @@: |
2434 | Serge | 1146 | call coff_get_align |
1147 | add ecx, eax |
||
1148 | add edi, eax |
||
1149 | not eax |
||
1150 | and ecx, eax |
||
1151 | and edi, eax |
||
1152 | mov [edx+COFF_SECTION.VirtualAddress], ecx |
||
1153 | add ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1154 | mov esi, [edx+COFF_SECTION.PtrRawData] |
||
1155 | push ecx |
||
1156 | mov ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1157 | test esi, esi |
||
1158 | jnz .copy |
||
1159 | xor eax, eax |
||
1160 | rep stosb |
||
1161 | jmp .next |
||
198 | serge | 1162 | .copy: |
2434 | Serge | 1163 | add esi, [coff] |
1164 | rep movsb |
||
198 | serge | 1165 | .next: |
2434 | Serge | 1166 | pop ecx |
1167 | add edx, sizeof.COFF_SECTION |
||
1168 | dec ebx |
||
1169 | jnz @B |
||
1170 | pop esi |
||
198 | serge | 1171 | |
1289 | diamond | 1172 | ; save some additional data from COFF file |
1173 | ; later we will use COFF header, headers for sections and symbol table |
||
1174 | ; and also relocations table for all sections |
||
2434 | Serge | 1175 | mov edx, [coff] |
1176 | mov ebx, [edx+COFF_HEADER.pSymTable] |
||
1177 | mov edi, dword [fileinfo+32] |
||
1178 | sub edi, ebx |
||
1179 | jc .fail_and_free_data |
||
1180 | mov [esi+DLLDESCR.symbols_lim], edi |
||
1181 | add ebx, edx |
||
1182 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1183 | lea ecx, [ecx*5] |
||
1184 | lea edi, [edi+ecx*8+20] |
||
1185 | add edx, 20 |
||
1289 | diamond | 1186 | @@: |
2434 | Serge | 1187 | movzx eax, [edx+COFF_SECTION.NumReloc] |
1188 | lea eax, [eax*5] |
||
1189 | lea edi, [edi+eax*2] |
||
1190 | add edx, sizeof.COFF_SECTION |
||
1191 | sub ecx, 5 |
||
1192 | jnz @b |
||
1193 | stdcall kernel_alloc, edi |
||
1194 | test eax, eax |
||
1195 | jz .fail_and_free_data |
||
1196 | mov edx, [coff] |
||
1197 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1198 | lea ecx, [ecx*5] |
||
1199 | lea ecx, [ecx*2+5] |
||
1200 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1201 | push esi |
||
1202 | mov esi, edx |
||
1203 | mov edi, eax |
||
1204 | rep movsd |
||
1205 | pop esi |
||
1206 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1207 | push esi |
||
1208 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
1209 | mov [esi+DLLDESCR.symbols_num], ecx |
||
1210 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1211 | mov esi, ebx |
||
1212 | rep movsb |
||
1213 | pop esi |
||
1214 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1215 | push esi |
||
1216 | movzx eax, [edx+COFF_HEADER.nSections] |
||
1217 | lea edx, [ebx+20] |
||
1289 | diamond | 1218 | @@: |
2434 | Serge | 1219 | movzx ecx, [edx+COFF_SECTION.NumReloc] |
1220 | lea ecx, [ecx*5] |
||
1221 | mov esi, [edx+COFF_SECTION.PtrReloc] |
||
1222 | mov [edx+COFF_SECTION.PtrReloc], edi |
||
1223 | sub [edx+COFF_SECTION.PtrReloc], ebx |
||
1224 | add esi, [coff] |
||
1225 | shr ecx, 1 |
||
1226 | rep movsd |
||
1227 | adc ecx, ecx |
||
1228 | rep movsw |
||
1229 | add edx, sizeof.COFF_SECTION |
||
1230 | dec eax |
||
1231 | jnz @b |
||
1232 | pop esi |
||
198 | serge | 1233 | |
1289 | diamond | 1234 | ; fixup symbols |
2434 | Serge | 1235 | mov edx, ebx |
1236 | mov eax, [ebx+COFF_HEADER.nSymbols] |
||
1237 | add edx, 20 |
||
1238 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1239 | lea ecx, [ecx*9] |
||
1240 | add ecx, ecx |
||
1241 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
198 | serge | 1242 | |
2434 | Serge | 1243 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax, \ |
1244 | ecx, 0 |
||
1245 | ; test eax, eax |
||
1246 | ; jnz @F |
||
1289 | diamond | 1247 | ; |
1248 | ;@@: |
||
1249 | |||
2434 | Serge | 1250 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], szEXPORTS |
1251 | test eax, eax |
||
1252 | jnz @F |
||
198 | serge | 1253 | |
2434 | Serge | 1254 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], sz_EXPORTS |
198 | serge | 1255 | @@: |
2434 | Serge | 1256 | mov [esi+DLLDESCR.exports], eax |
198 | serge | 1257 | |
1289 | diamond | 1258 | ; fix relocs in the hidden copy in kernel memory to default address |
1259 | ; it is first fix; usually this will be enough, but second fix |
||
1260 | ; can be necessary if real load address will not equal assumption |
||
2434 | Serge | 1261 | mov eax, [esi+DLLDESCR.data] |
1262 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1263 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
198 | serge | 1264 | |
2434 | Serge | 1265 | stdcall kernel_free, [coff] |
916 | serge | 1266 | |
3908 | Serge | 1267 | cli |
1268 | ; initialize DLLDESCR struct |
||
1269 | and dword [esi+DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
||
1270 | mov [esi+DLLDESCR.fd], dll_list |
||
1271 | mov eax, [dll_list.bk] |
||
1272 | mov [dll_list.bk], esi |
||
1273 | mov [esi+DLLDESCR.bk], eax |
||
1274 | mov [eax+DLLDESCR.fd], esi |
||
1289 | diamond | 1275 | .dll_already_loaded: |
2434 | Serge | 1276 | inc [esi+DLLDESCR.refcount] |
1277 | push esi |
||
1278 | call init_heap |
||
1279 | pop esi |
||
1289 | diamond | 1280 | |
2434 | Serge | 1281 | mov edi, [esi+DLLDESCR.size] |
1282 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1283 | test eax, eax |
||
1284 | jnz @f |
||
1285 | stdcall user_alloc, edi |
||
1286 | test eax, eax |
||
1287 | jz .fail_and_dereference |
||
917 | diamond | 1288 | @@: |
2434 | Serge | 1289 | mov [img_base], eax |
1290 | mov eax, sizeof.HDLL |
||
1291 | call malloc |
||
1292 | test eax, eax |
||
1293 | jz .fail_and_free_user |
||
1294 | mov ebx, [CURRENT_TASK] |
||
1295 | shl ebx, 5 |
||
1296 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
||
1297 | mov [eax+HDLL.pid], edx |
||
1298 | push eax |
||
1299 | call init_dlls_in_thread |
||
1300 | pop ebx |
||
1301 | test eax, eax |
||
1302 | jz .fail_and_free_user |
||
1303 | mov edx, [eax+HDLL.fd] |
||
1304 | mov [ebx+HDLL.fd], edx |
||
1305 | mov [ebx+HDLL.bk], eax |
||
1306 | mov [eax+HDLL.fd], ebx |
||
1307 | mov [edx+HDLL.bk], ebx |
||
1308 | mov eax, ebx |
||
1309 | mov ebx, [img_base] |
||
1310 | mov [eax+HDLL.base], ebx |
||
1311 | mov [eax+HDLL.size], edi |
||
1312 | mov [eax+HDLL.refcount], 1 |
||
1313 | mov [eax+HDLL.parent], esi |
||
1314 | mov edx, ebx |
||
1315 | shr edx, 12 |
||
1316 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1289 | diamond | 1317 | ; copy entries of page table from kernel-side image to usermode |
1318 | ; use copy-on-write for user-mode image, so map as readonly |
||
2434 | Serge | 1319 | xor edi, edi |
1320 | mov ecx, [esi+DLLDESCR.data] |
||
1321 | shr ecx, 12 |
||
1289 | diamond | 1322 | .map_pages_loop: |
2434 | Serge | 1323 | mov eax, [page_tabs+ecx*4] |
1324 | and eax, not 0xFFF |
||
1325 | or al, PG_USER |
||
1326 | xchg eax, [page_tabs+edx*4] |
||
1327 | test al, 1 |
||
1328 | jz @f |
||
1329 | call free_page |
||
1289 | diamond | 1330 | @@: |
2434 | Serge | 1331 | invlpg [ebx+edi] |
1332 | inc ecx |
||
1333 | inc edx |
||
1334 | add edi, 0x1000 |
||
1335 | cmp edi, [esi+DLLDESCR.size] |
||
1336 | jb .map_pages_loop |
||
1289 | diamond | 1337 | |
1338 | ; if real user-mode base is not equal to preferred base, relocate image |
||
2434 | Serge | 1339 | sub ebx, [esi+DLLDESCR.defaultbase] |
1340 | jz @f |
||
1341 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1289 | diamond | 1342 | @@: |
1343 | |||
2434 | Serge | 1344 | mov eax, [esi+DLLDESCR.exports] |
1345 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1346 | add eax, [img_base] |
||
3908 | Serge | 1347 | sti |
2434 | Serge | 1348 | ret |
1289 | diamond | 1349 | .fail_and_free_data: |
2434 | Serge | 1350 | stdcall kernel_free, [esi+DLLDESCR.data] |
1289 | diamond | 1351 | .fail_and_free_dll: |
2434 | Serge | 1352 | mov eax, esi |
1353 | call free |
||
1289 | diamond | 1354 | .fail_and_free_coff: |
2434 | Serge | 1355 | stdcall kernel_free, [coff] |
198 | serge | 1356 | .fail: |
2434 | Serge | 1357 | xor eax, eax |
1358 | ret |
||
1289 | diamond | 1359 | .fail_and_free_user: |
2434 | Serge | 1360 | stdcall user_free, [img_base] |
1289 | diamond | 1361 | .fail_and_dereference: |
2434 | Serge | 1362 | mov eax, 1 ; delete 1 reference |
1363 | call dereference_dll |
||
3908 | Serge | 1364 | sti |
2434 | Serge | 1365 | xor eax, eax |
1366 | ret |
||
198 | serge | 1367 | endp |
1368 | |||
1311 | diamond | 1369 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
1370 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1371 | ; kept in sync for all threads of one process. |
||
1372 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1373 | ; NULL if memory allocation failed |
||
1374 | init_dlls_in_thread: |
||
2434 | Serge | 1375 | mov ebx, [current_slot] |
1376 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
1377 | test eax, eax |
||
1378 | jnz .ret |
||
1379 | push [ebx+APPDATA.dir_table] |
||
1380 | mov eax, 8 |
||
1381 | call malloc |
||
1382 | pop edx |
||
1383 | test eax, eax |
||
1384 | jz .ret |
||
1385 | mov [eax], eax |
||
1386 | mov [eax+4], eax |
||
1387 | mov ecx, [TASK_COUNT] |
||
1388 | mov ebx, SLOT_BASE+256 |
||
1311 | diamond | 1389 | .set: |
2434 | Serge | 1390 | cmp [ebx+APPDATA.dir_table], edx |
1391 | jnz @f |
||
1392 | mov [ebx+APPDATA.dlls_list_ptr], eax |
||
1311 | diamond | 1393 | @@: |
2434 | Serge | 1394 | add ebx, 256 |
1395 | dec ecx |
||
1396 | jnz .set |
||
1311 | diamond | 1397 | .ret: |
2434 | Serge | 1398 | ret |
1311 | diamond | 1399 | |
1289 | diamond | 1400 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
1401 | dereference_dll: |
||
2434 | Serge | 1402 | sub [esi+DLLDESCR.refcount], eax |
1403 | jnz .ret |
||
1404 | mov eax, [esi+DLLDESCR.fd] |
||
1405 | mov edx, [esi+DLLDESCR.bk] |
||
1406 | mov [eax+DLLDESCR.bk], edx |
||
1407 | mov [edx+DLLDESCR.fd], eax |
||
1408 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
||
1409 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1410 | mov eax, esi |
||
1411 | call free |
||
1289 | diamond | 1412 | .ret: |
2434 | Serge | 1413 | ret |
1289 | diamond | 1414 | |
1415 | destroy_hdll: |
||
2434 | Serge | 1416 | push ebx ecx esi edi |
1417 | push eax |
||
1418 | mov ebx, [eax+HDLL.base] |
||
1419 | mov esi, [eax+HDLL.parent] |
||
1420 | mov edx, [esi+DLLDESCR.size] |
||
1292 | diamond | 1421 | ; The following actions require the context of application where HDLL is mapped. |
1422 | ; However, destroy_hdll can be called in the context of OS thread when |
||
1423 | ; cleaning up objects created by the application which is destroyed. |
||
1424 | ; So remember current cr3 and set it to page table of target. |
||
2434 | Serge | 1425 | mov eax, [ecx+APPDATA.dir_table] |
1292 | diamond | 1426 | ; Because we cheat with cr3, disable interrupts: task switch would restore |
1427 | ; page table from APPDATA of current thread. |
||
1428 | ; Also set [current_slot] because it is used by user_free. |
||
2434 | Serge | 1429 | pushf |
1430 | cli |
||
1431 | push [current_slot] |
||
1432 | mov [current_slot], ecx |
||
1433 | mov ecx, cr3 |
||
1434 | push ecx |
||
1435 | mov cr3, eax |
||
1436 | push ebx ; argument for user_free |
||
1437 | mov eax, ebx |
||
1438 | shr ebx, 12 |
||
1439 | push ebx |
||
1440 | mov esi, [esi+DLLDESCR.data] |
||
1441 | shr esi, 12 |
||
1289 | diamond | 1442 | .unmap_loop: |
2434 | Serge | 1443 | push eax |
1444 | mov eax, 2 |
||
1445 | xchg eax, [page_tabs+ebx*4] |
||
1446 | mov ecx, [page_tabs+esi*4] |
||
1447 | and eax, not 0xFFF |
||
1448 | and ecx, not 0xFFF |
||
1449 | cmp eax, ecx |
||
1450 | jz @f |
||
1451 | call free_page |
||
1289 | diamond | 1452 | @@: |
2434 | Serge | 1453 | pop eax |
1454 | invlpg [eax] |
||
1455 | add eax, 0x1000 |
||
1456 | inc ebx |
||
1457 | inc esi |
||
1458 | sub edx, 0x1000 |
||
1459 | ja .unmap_loop |
||
1460 | pop ebx |
||
1461 | and dword [page_tabs+(ebx-1)*4], not DONT_FREE_BLOCK |
||
1462 | call user_free |
||
1292 | diamond | 1463 | ; Restore context. |
2434 | Serge | 1464 | pop eax |
1465 | mov cr3, eax |
||
1466 | pop [current_slot] |
||
1467 | popf |
||
1292 | diamond | 1468 | ; Ok, cheating is done. |
2434 | Serge | 1469 | pop eax |
1470 | push eax |
||
1471 | mov esi, [eax+HDLL.parent] |
||
1472 | mov eax, [eax+HDLL.refcount] |
||
1473 | call dereference_dll |
||
1474 | pop eax |
||
1475 | mov edx, [eax+HDLL.bk] |
||
1476 | mov ebx, [eax+HDLL.fd] |
||
1477 | mov [ebx+HDLL.bk], edx |
||
1478 | mov [edx+HDLL.fd], ebx |
||
1479 | call free |
||
1480 | pop edi esi ecx ebx |
||
1481 | ret |
||
1289 | diamond | 1482 | |
1311 | diamond | 1483 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
1484 | destroy_all_hdlls: |
||
2434 | Serge | 1485 | test esi, esi |
1486 | jz .ret |
||
1311 | diamond | 1487 | .loop: |
2434 | Serge | 1488 | mov eax, [esi+HDLL.fd] |
1489 | cmp eax, esi |
||
1490 | jz free |
||
1491 | call destroy_hdll |
||
1492 | jmp .loop |
||
1311 | diamond | 1493 | .ret: |
2434 | Serge | 1494 | ret |
1311 | diamond | 1495 | |
214 | serge | 1496 | align 4 |
1275 | serge | 1497 | stop_all_services: |
2434 | Serge | 1498 | push ebp |
1499 | mov edx, [srv.fd] |
||
214 | serge | 1500 | .next: |
2434 | Serge | 1501 | cmp edx, srv.fd-SRV.fd |
1502 | je .done |
||
1503 | cmp [edx+SRV.magic], ' SRV' |
||
1504 | jne .next |
||
1505 | cmp [edx+SRV.size], sizeof.SRV |
||
1506 | jne .next |
||
732 | serge | 1507 | |
2434 | Serge | 1508 | mov ebx, [edx+SRV.entry] |
1509 | mov edx, [edx+SRV.fd] |
||
1510 | test ebx, ebx |
||
1511 | jz .next |
||
732 | serge | 1512 | |
2434 | Serge | 1513 | push edx |
1514 | mov ebp, esp |
||
1515 | push 0 |
||
1516 | push -1 |
||
1517 | call ebx |
||
1518 | mov esp, ebp |
||
1519 | pop edx |
||
1520 | jmp .next |
||
278 | serge | 1521 | .done: |
2434 | Serge | 1522 | pop ebp |
1523 | ret |
||
198 | serge | 1524 | |
281 | serge | 1525 | ; param |
291 | serge | 1526 | ; eax= size |
1527 | ; ebx= pid |
||
214 | serge | 1528 | |
281 | serge | 1529 | align 4 |
1530 | create_kernel_object: |
||
1531 | |||
2434 | Serge | 1532 | push ebx |
1533 | call malloc |
||
1534 | pop ebx |
||
1535 | test eax, eax |
||
1536 | jz .fail |
||
281 | serge | 1537 | |
2434 | Serge | 1538 | mov ecx, [current_slot] |
1539 | add ecx, APP_OBJ_OFFSET |
||
281 | serge | 1540 | |
2434 | Serge | 1541 | pushfd |
1542 | cli |
||
1543 | mov edx, [ecx+APPOBJ.fd] |
||
1544 | mov [eax+APPOBJ.fd], edx |
||
1545 | mov [eax+APPOBJ.bk], ecx |
||
1546 | mov [eax+APPOBJ.pid], ebx |
||
281 | serge | 1547 | |
2434 | Serge | 1548 | mov [ecx+APPOBJ.fd], eax |
1549 | mov [edx+APPOBJ.bk], eax |
||
1550 | popfd |
||
281 | serge | 1551 | .fail: |
2434 | Serge | 1552 | ret |
281 | serge | 1553 | |
1554 | ; param |
||
1555 | ; eax= object |
||
1556 | |||
1557 | align 4 |
||
1558 | destroy_kernel_object: |
||
1559 | |||
2434 | Serge | 1560 | pushfd |
1561 | cli |
||
1562 | mov ebx, [eax+APPOBJ.fd] |
||
1563 | mov ecx, [eax+APPOBJ.bk] |
||
1564 | mov [ebx+APPOBJ.bk], ecx |
||
1565 | mov [ecx+APPOBJ.fd], ebx |
||
1566 | popfd |
||
281 | serge | 1567 | |
2434 | Serge | 1568 | xor edx, edx ;clear common header |
1569 | mov [eax], edx |
||
1570 | mov [eax+4], edx |
||
1571 | mov [eax+8], edx |
||
1572 | mov [eax+12], edx |
||
1573 | mov [eax+16], edx |
||
281 | serge | 1574 | |
2434 | Serge | 1575 | call free ;release object memory |
1576 | ret |