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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: 3555 $ |
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 | align 4 |
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38 | proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword |
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2434 | Serge | 39 | push ebx |
40 | xor eax, eax |
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41 | xor ebx, ebx |
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42 | mov ah, byte [bus] |
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43 | mov al, 6 |
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44 | mov bh, byte [devfn] |
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45 | mov bl, byte [reg] |
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46 | call pci_read_reg |
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47 | pop ebx |
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48 | ret |
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164 | serge | 49 | endp |
50 | |||
51 | align 4 |
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557 | serge | 52 | proc pci_read16 stdcall, bus:dword, devfn:dword, reg:dword |
2434 | Serge | 53 | push ebx |
54 | xor eax, eax |
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55 | xor ebx, ebx |
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56 | mov ah, byte [bus] |
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57 | mov al, 5 |
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58 | mov bh, byte [devfn] |
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59 | mov bl, byte [reg] |
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60 | call pci_read_reg |
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61 | pop ebx |
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62 | ret |
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557 | serge | 63 | endp |
64 | |||
65 | align 4 |
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164 | serge | 66 | proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword |
2434 | Serge | 67 | push ebx |
68 | xor eax, eax |
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69 | xor ebx, ebx |
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70 | mov ah, byte [bus] |
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71 | mov al, 4 |
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72 | mov bh, byte [devfn] |
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73 | mov bl, byte [reg] |
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74 | call pci_read_reg |
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75 | pop ebx |
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76 | ret |
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164 | serge | 77 | endp |
78 | |||
79 | align 4 |
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80 | proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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2434 | Serge | 81 | push ebx |
82 | xor eax, eax |
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83 | xor ebx, ebx |
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84 | mov ah, byte [bus] |
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85 | mov al, 8 |
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86 | mov bh, byte [devfn] |
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87 | mov bl, byte [reg] |
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88 | mov ecx, [val] |
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89 | call pci_write_reg |
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90 | pop ebx |
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91 | ret |
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164 | serge | 92 | endp |
93 | |||
557 | serge | 94 | align 4 |
95 | proc pci_write16 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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2434 | Serge | 96 | push ebx |
97 | xor eax, eax |
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98 | xor ebx, ebx |
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99 | mov ah, byte [bus] |
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100 | mov al, 9 |
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101 | mov bh, byte [devfn] |
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102 | mov bl, byte [reg] |
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103 | mov ecx, [val] |
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104 | call pci_write_reg |
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105 | pop ebx |
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106 | ret |
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557 | serge | 107 | endp |
108 | |||
672 | hidnplayr | 109 | align 4 |
110 | proc pci_write32 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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2434 | Serge | 111 | push ebx |
112 | xor eax, eax |
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113 | xor ebx, ebx |
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114 | mov ah, byte [bus] |
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115 | mov al, 10 |
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116 | mov bh, byte [devfn] |
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117 | mov bl, byte [reg] |
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118 | mov ecx, [val] |
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119 | call pci_write_reg |
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120 | pop ebx |
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121 | ret |
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672 | hidnplayr | 122 | endp |
164 | serge | 123 | |
2434 | Serge | 124 | handle equ IOCTL.handle |
125 | io_code equ IOCTL.io_code |
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126 | input equ IOCTL.input |
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127 | inp_size equ IOCTL.inp_size |
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128 | output equ IOCTL.output |
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129 | out_size equ IOCTL.out_size |
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164 | serge | 130 | |
672 | hidnplayr | 131 | |
164 | serge | 132 | align 4 |
133 | proc srv_handler stdcall, ioctl:dword |
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2434 | Serge | 134 | mov esi, [ioctl] |
135 | test esi, esi |
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136 | jz .err |
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164 | serge | 137 | |
2434 | Serge | 138 | mov edi, [esi+handle] |
139 | cmp [edi+SRV.magic], ' SRV' |
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140 | jne .fail |
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164 | serge | 141 | |
2434 | Serge | 142 | cmp [edi+SRV.size], sizeof.SRV |
143 | jne .fail |
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164 | serge | 144 | |
3555 | Serge | 145 | ; stdcall [edi+SRV.srv_proc], esi |
146 | mov eax, [edi+SRV.srv_proc] |
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147 | test eax, eax |
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148 | jz .fail |
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149 | stdcall eax, esi |
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2434 | Serge | 150 | ret |
164 | serge | 151 | .fail: |
2434 | Serge | 152 | xor eax, eax |
153 | not eax |
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154 | mov [esi+output], eax |
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155 | mov [esi+out_size], 4 |
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156 | ret |
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164 | serge | 157 | .err: |
2434 | Serge | 158 | xor eax, eax |
159 | not eax |
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160 | ret |
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164 | serge | 161 | endp |
162 | |||
377 | serge | 163 | ; param |
1345 | Lrz | 164 | ; ecx= io_control |
377 | serge | 165 | ; |
166 | ; retval |
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167 | ; eax= error code |
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168 | |||
164 | serge | 169 | align 4 |
377 | serge | 170 | srv_handlerEx: |
2434 | Serge | 171 | cmp ecx, OS_BASE |
172 | jae .fail |
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164 | serge | 173 | |
2434 | Serge | 174 | mov eax, [ecx+handle] |
175 | cmp [eax+SRV.magic], ' SRV' |
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176 | jne .fail |
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164 | serge | 177 | |
2434 | Serge | 178 | cmp [eax+SRV.size], sizeof.SRV |
179 | jne .fail |
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164 | serge | 180 | |
3555 | Serge | 181 | ; stdcall [eax+SRV.srv_proc], ecx |
182 | mov eax, [eax+SRV.srv_proc] |
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183 | test eax, eax |
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184 | jz .fail |
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185 | stdcall eax, ecx |
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2434 | Serge | 186 | ret |
164 | serge | 187 | .fail: |
2434 | Serge | 188 | or eax, -1 |
189 | ret |
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164 | serge | 190 | |
191 | restore handle |
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192 | restore io_code |
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193 | restore input |
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194 | restore inp_size |
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195 | restore output |
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196 | restore out_size |
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197 | |||
198 | align 4 |
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199 | proc get_service stdcall, sz_name:dword |
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2434 | Serge | 200 | mov eax, [sz_name] |
201 | test eax, eax |
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202 | jnz @F |
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203 | ret |
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164 | serge | 204 | @@: |
2434 | Serge | 205 | mov edx, [srv.fd] |
188 | serge | 206 | @@: |
2434 | Serge | 207 | cmp edx, srv.fd-SRV.fd |
208 | je .not_load |
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278 | serge | 209 | |
2434 | Serge | 210 | stdcall strncmp, edx, [sz_name], 16 |
211 | test eax, eax |
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212 | je .ok |
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164 | serge | 213 | |
2434 | Serge | 214 | mov edx, [edx+SRV.fd] |
215 | jmp @B |
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164 | serge | 216 | .not_load: |
2434 | Serge | 217 | pop ebp |
218 | jmp load_driver |
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164 | serge | 219 | .ok: |
2434 | Serge | 220 | mov eax, edx |
221 | ret |
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164 | serge | 222 | endp |
223 | |||
3555 | Serge | 224 | reg_service: |
225 | xor eax, eax |
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226 | mov ecx, [esp+8] |
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227 | jecxz .nothing |
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228 | push sizeof.SRV |
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229 | push ecx |
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230 | pushd [esp+12] |
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231 | call reg_service_ex |
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232 | .nothing: |
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233 | ret 8 |
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164 | serge | 234 | |
3555 | Serge | 235 | reg_usb_driver: |
236 | push sizeof.USBSRV |
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237 | pushd [esp+12] |
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238 | pushd [esp+12] |
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239 | call reg_service_ex |
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240 | test eax, eax |
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241 | jz .nothing |
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242 | mov ecx, [esp+12] |
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243 | mov [eax+USBSRV.usb_func], ecx |
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244 | .nothing: |
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245 | ret 12 |
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246 | |||
247 | proc reg_service_ex stdcall, name:dword, handler:dword, srvsize:dword |
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248 | |||
2434 | Serge | 249 | push ebx |
164 | serge | 250 | |
2434 | Serge | 251 | xor eax, eax |
819 | serge | 252 | |
2434 | Serge | 253 | cmp [name], eax |
254 | je .fail |
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740 | serge | 255 | |
3555 | Serge | 256 | ; cmp [handler], eax |
257 | ; je .fail |
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740 | serge | 258 | |
3555 | Serge | 259 | mov eax, [srvsize] |
2434 | Serge | 260 | call malloc |
261 | test eax, eax |
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262 | jz .fail |
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164 | serge | 263 | |
2434 | Serge | 264 | push esi |
265 | push edi |
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266 | mov edi, eax |
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267 | mov esi, [name] |
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268 | movsd |
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269 | movsd |
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270 | movsd |
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271 | movsd |
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272 | pop edi |
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273 | pop esi |
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164 | serge | 274 | |
2434 | Serge | 275 | mov [eax+SRV.magic], ' SRV' |
276 | mov [eax+SRV.size], sizeof.SRV |
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278 | serge | 277 | |
2434 | Serge | 278 | mov ebx, srv.fd-SRV.fd |
279 | mov edx, [ebx+SRV.fd] |
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280 | mov [eax+SRV.fd], edx |
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281 | mov [eax+SRV.bk], ebx |
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282 | mov [ebx+SRV.fd], eax |
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283 | mov [edx+SRV.bk], eax |
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278 | serge | 284 | |
2434 | Serge | 285 | mov ecx, [handler] |
286 | mov [eax+SRV.srv_proc], ecx |
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287 | pop ebx |
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288 | ret |
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164 | serge | 289 | .fail: |
2434 | Serge | 290 | xor eax, eax |
291 | pop ebx |
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292 | ret |
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740 | serge | 293 | endp |
164 | serge | 294 | |
295 | align 4 |
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296 | proc get_proc stdcall, exp:dword, sz_name:dword |
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297 | |||
2434 | Serge | 298 | mov edx, [exp] |
164 | serge | 299 | .next: |
2434 | Serge | 300 | mov eax, [edx] |
301 | test eax, eax |
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302 | jz .end |
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164 | serge | 303 | |
2434 | Serge | 304 | push edx |
305 | stdcall strncmp, eax, [sz_name], 16 |
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306 | pop edx |
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307 | test eax, eax |
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308 | jz .ok |
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164 | serge | 309 | |
2434 | Serge | 310 | add edx, 8 |
311 | jmp .next |
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164 | serge | 312 | .ok: |
2434 | Serge | 313 | mov eax, [edx+4] |
164 | serge | 314 | .end: |
2434 | Serge | 315 | ret |
164 | serge | 316 | endp |
317 | |||
318 | align 4 |
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319 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
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320 | |||
321 | @@: |
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2434 | Serge | 322 | stdcall strncmp, [pSym], [sz_sym], 8 |
323 | test eax, eax |
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324 | jz .ok |
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325 | add [pSym], 18 |
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326 | dec [count] |
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327 | jnz @b |
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328 | xor eax, eax |
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329 | ret |
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164 | serge | 330 | .ok: |
2434 | Serge | 331 | mov eax, [pSym] |
332 | mov eax, [eax+8] |
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333 | ret |
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164 | serge | 334 | endp |
335 | |||
336 | align 4 |
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188 | serge | 337 | proc get_curr_task |
2434 | Serge | 338 | mov eax, [CURRENT_TASK] |
339 | shl eax, 8 |
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340 | ret |
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188 | serge | 341 | endp |
164 | serge | 342 | |
188 | serge | 343 | align 4 |
344 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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2434 | Serge | 345 | locals |
346 | cmd dd ? |
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347 | offset dd ? |
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348 | dd ? |
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349 | count dd ? |
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350 | buff dd ? |
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351 | db ? |
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352 | name dd ? |
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353 | endl |
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164 | serge | 354 | |
2434 | Serge | 355 | xor eax, eax |
356 | mov ebx, [file_name] |
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357 | mov ecx, [info] |
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164 | serge | 358 | |
2434 | Serge | 359 | mov [cmd], 5 |
360 | mov [offset], eax |
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361 | mov [offset+4], eax |
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362 | mov [count], eax |
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363 | mov [buff], ecx |
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364 | mov byte [buff+4], al |
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365 | mov [name], ebx |
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164 | serge | 366 | |
2434 | Serge | 367 | mov eax, 70 |
368 | lea ebx, [cmd] |
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369 | int 0x40 |
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370 | ret |
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188 | serge | 371 | endp |
164 | serge | 372 | |
188 | serge | 373 | align 4 |
374 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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2434 | Serge | 375 | bytes:dword |
376 | locals |
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377 | cmd dd ? |
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378 | offset dd ? |
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379 | dd ? |
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380 | count dd ? |
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381 | buff dd ? |
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382 | db ? |
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383 | name dd ? |
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384 | endl |
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164 | serge | 385 | |
2434 | Serge | 386 | xor eax, eax |
387 | mov ebx, [file_name] |
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388 | mov ecx, [off] |
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389 | mov edx, [bytes] |
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390 | mov esi, [buffer] |
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164 | serge | 391 | |
2434 | Serge | 392 | mov [cmd], eax |
393 | mov [offset], ecx |
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394 | mov [offset+4], eax |
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395 | mov [count], edx |
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396 | mov [buff], esi |
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397 | mov byte [buff+4], al |
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398 | mov [name], ebx |
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188 | serge | 399 | |
2434 | Serge | 400 | pushad |
401 | lea ebx, [cmd] |
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3500 | Serge | 402 | call file_system_lfn_protected |
2434 | Serge | 403 | popad |
404 | ret |
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188 | serge | 405 | endp |
406 | |||
363 | serge | 407 | ; description |
408 | ; allocate kernel memory and loads the specified file |
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409 | ; |
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410 | ; param |
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411 | ; file_name= full path to file |
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412 | ; |
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413 | ; retval |
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414 | ; eax= file image in kernel memory |
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415 | ; ebx= size of file |
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416 | ; |
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417 | ; warging |
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418 | ; You mast call kernel_free() to delete each file |
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419 | ; loaded by the load_file() function |
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420 | |||
188 | serge | 421 | align 4 |
422 | proc load_file stdcall, file_name:dword |
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2434 | Serge | 423 | locals |
424 | attr dd ? |
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425 | flags dd ? |
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426 | cr_time dd ? |
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427 | cr_date dd ? |
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428 | acc_time dd ? |
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429 | acc_date dd ? |
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430 | mod_time dd ? |
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431 | mod_date dd ? |
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432 | file_size dd ? |
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188 | serge | 433 | |
2434 | Serge | 434 | file dd ? |
435 | file2 dd ? |
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436 | endl |
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188 | serge | 437 | |
2434 | Serge | 438 | push esi |
439 | push edi |
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662 | serge | 440 | |
2434 | Serge | 441 | lea eax, [attr] |
442 | stdcall get_fileinfo, [file_name], eax |
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443 | test eax, eax |
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444 | jnz .fail |
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164 | serge | 445 | |
2434 | Serge | 446 | mov eax, [file_size] |
447 | cmp eax, 1024*1024*16 |
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448 | ja .fail |
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206 | serge | 449 | |
2434 | Serge | 450 | stdcall kernel_alloc, [file_size] |
451 | mov [file], eax |
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452 | test eax, eax |
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453 | jz .fail |
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164 | serge | 454 | |
2434 | Serge | 455 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
456 | cmp ebx, [file_size] |
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457 | jne .cleanup |
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211 | serge | 458 | |
2434 | Serge | 459 | mov eax, [file] |
460 | cmp dword [eax], 0x4B43504B |
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461 | jne .exit |
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462 | mov ebx, [eax+4] |
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463 | mov [file_size], ebx |
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464 | stdcall kernel_alloc, ebx |
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211 | serge | 465 | |
2434 | Serge | 466 | test eax, eax |
467 | jz .cleanup |
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211 | serge | 468 | |
2434 | Serge | 469 | mov [file2], eax |
2987 | Serge | 470 | |
471 | pushad |
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472 | mov ecx, unpack_mutex |
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473 | call mutex_lock |
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474 | popad |
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475 | |||
2434 | Serge | 476 | stdcall unpack, [file], eax |
2987 | Serge | 477 | |
478 | pushad |
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479 | mov ecx, unpack_mutex |
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480 | call mutex_unlock |
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481 | popad |
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482 | |||
2434 | Serge | 483 | stdcall kernel_free, [file] |
484 | mov eax, [file2] |
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485 | mov ebx, [file_size] |
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211 | serge | 486 | .exit: |
2434 | Serge | 487 | push eax |
488 | lea edi, [eax+ebx] ;cleanup remain space |
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489 | mov ecx, 4096 ;from file end |
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490 | and ebx, 4095 |
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491 | jz @f |
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492 | sub ecx, ebx |
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493 | xor eax, eax |
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494 | cld |
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495 | rep stosb |
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521 | diamond | 496 | @@: |
2434 | Serge | 497 | mov ebx, [file_size] |
498 | pop eax |
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499 | pop edi |
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500 | pop esi |
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501 | ret |
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188 | serge | 502 | .cleanup: |
2434 | Serge | 503 | stdcall kernel_free, [file] |
188 | serge | 504 | .fail: |
2434 | Serge | 505 | xor eax, eax |
506 | xor ebx, ebx |
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507 | pop edi |
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508 | pop esi |
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509 | ret |
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188 | serge | 510 | endp |
164 | serge | 511 | |
2987 | Serge | 512 | uglobal |
188 | serge | 513 | align 4 |
2987 | Serge | 514 | unpack_mutex MUTEX |
515 | endg |
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516 | |||
517 | align 4 |
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188 | serge | 518 | proc get_proc_ex stdcall, proc_name:dword, imports:dword |
519 | |||
520 | .look_up: |
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2434 | Serge | 521 | mov edx, [imports] |
522 | test edx, edx |
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523 | jz .end |
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524 | mov edx, [edx] |
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525 | test edx, edx |
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526 | jz .end |
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188 | serge | 527 | .next: |
2434 | Serge | 528 | mov eax, [edx] |
529 | test eax, eax |
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530 | jz .next_table |
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164 | serge | 531 | |
2434 | Serge | 532 | push edx |
533 | stdcall strncmp, eax, [proc_name], 256 |
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534 | pop edx |
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535 | test eax, eax |
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536 | jz .ok |
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164 | serge | 537 | |
2434 | Serge | 538 | add edx, 8 |
539 | jmp .next |
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188 | serge | 540 | .next_table: |
2434 | Serge | 541 | add [imports], 4 |
542 | jmp .look_up |
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188 | serge | 543 | .ok: |
2434 | Serge | 544 | mov eax, [edx+4] |
545 | ret |
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188 | serge | 546 | .end: |
2434 | Serge | 547 | xor eax, eax |
548 | ret |
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188 | serge | 549 | endp |
164 | serge | 550 | |
188 | serge | 551 | align 4 |
1289 | diamond | 552 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
2434 | Serge | 553 | sym_count:dword, strings:dword, imports:dword |
554 | locals |
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555 | retval dd ? |
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556 | endl |
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164 | serge | 557 | |
2434 | Serge | 558 | mov edi, [symbols] |
559 | mov [retval], 1 |
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188 | serge | 560 | .fix: |
2434 | Serge | 561 | movzx ebx, [edi+COFF_SYM.SectionNumber] |
562 | test ebx, ebx |
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563 | jnz .internal |
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564 | mov eax, dword [edi+COFF_SYM.Name] |
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565 | test eax, eax |
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566 | jnz @F |
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164 | serge | 567 | |
2434 | Serge | 568 | mov edi, [edi+4] |
569 | add edi, [strings] |
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188 | serge | 570 | @@: |
2434 | Serge | 571 | push edi |
572 | stdcall get_proc_ex, edi, [imports] |
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573 | pop edi |
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164 | serge | 574 | |
2434 | Serge | 575 | xor ebx, ebx |
576 | test eax, eax |
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577 | jnz @F |
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164 | serge | 578 | |
2434 | Serge | 579 | mov esi, msg_unresolved |
580 | call sys_msg_board_str |
||
581 | mov esi, edi |
||
582 | call sys_msg_board_str |
||
583 | mov esi, msg_CR |
||
584 | call sys_msg_board_str |
||
164 | serge | 585 | |
2434 | Serge | 586 | mov [retval], 0 |
188 | serge | 587 | @@: |
2434 | Serge | 588 | mov edi, [symbols] |
589 | mov [edi+COFF_SYM.Value], eax |
||
590 | jmp .next |
||
188 | serge | 591 | .internal: |
2434 | Serge | 592 | cmp bx, -1 |
593 | je .next |
||
594 | cmp bx, -2 |
||
595 | je .next |
||
541 | serge | 596 | |
2434 | Serge | 597 | dec ebx |
598 | shl ebx, 3 |
||
599 | lea ebx, [ebx+ebx*4] |
||
600 | add ebx, [sec] |
||
188 | serge | 601 | |
2434 | Serge | 602 | mov eax, [ebx+COFF_SECTION.VirtualAddress] |
603 | add [edi+COFF_SYM.Value], eax |
||
188 | serge | 604 | .next: |
2434 | Serge | 605 | add edi, sizeof.COFF_SYM |
606 | mov [symbols], edi |
||
607 | dec [sym_count] |
||
608 | jnz .fix |
||
609 | mov eax, [retval] |
||
610 | ret |
||
164 | serge | 611 | endp |
612 | |||
613 | align 4 |
||
1289 | diamond | 614 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 615 | delta:dword |
616 | locals |
||
617 | n_sec dd ? |
||
618 | endl |
||
164 | serge | 619 | |
2434 | Serge | 620 | mov eax, [coff] |
621 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
622 | mov [n_sec], ebx |
||
623 | lea esi, [eax+20] |
||
188 | serge | 624 | .fix_sec: |
2434 | Serge | 625 | mov edi, [esi+COFF_SECTION.PtrReloc] |
626 | add edi, [coff] |
||
164 | serge | 627 | |
2434 | Serge | 628 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
629 | test ecx, ecx |
||
630 | jz .next |
||
1289 | diamond | 631 | .reloc_loop: |
2434 | Serge | 632 | mov ebx, [edi+COFF_RELOC.SymIndex] |
633 | add ebx, ebx |
||
634 | lea ebx, [ebx+ebx*8] |
||
635 | add ebx, [sym] |
||
164 | serge | 636 | |
2434 | Serge | 637 | mov edx, [ebx+COFF_SYM.Value] |
164 | serge | 638 | |
2434 | Serge | 639 | cmp [edi+COFF_RELOC.Type], 6 |
640 | je .dir_32 |
||
164 | serge | 641 | |
2434 | Serge | 642 | cmp [edi+COFF_RELOC.Type], 20 |
643 | jne .next_reloc |
||
188 | serge | 644 | .rel_32: |
2434 | Serge | 645 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
646 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
647 | sub edx, eax |
||
648 | sub edx, 4 |
||
649 | jmp .fix |
||
188 | serge | 650 | .dir_32: |
2434 | Serge | 651 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
652 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
188 | serge | 653 | .fix: |
2434 | Serge | 654 | add eax, [delta] |
655 | add [eax], edx |
||
1289 | diamond | 656 | .next_reloc: |
2434 | Serge | 657 | add edi, 10 |
658 | dec ecx |
||
659 | jnz .reloc_loop |
||
188 | serge | 660 | .next: |
2434 | Serge | 661 | add esi, sizeof.COFF_SECTION |
662 | dec [n_sec] |
||
663 | jnz .fix_sec |
||
164 | serge | 664 | .exit: |
2434 | Serge | 665 | ret |
164 | serge | 666 | endp |
667 | |||
2106 | serge | 668 | align 4 |
1289 | diamond | 669 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 670 | delta:dword |
671 | locals |
||
672 | n_sec dd ? |
||
673 | endl |
||
1289 | diamond | 674 | |
2434 | Serge | 675 | mov eax, [coff] |
676 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
677 | mov [n_sec], ebx |
||
678 | lea esi, [eax+20] |
||
679 | mov edx, [delta] |
||
1289 | diamond | 680 | .fix_sec: |
2434 | Serge | 681 | mov edi, [esi+COFF_SECTION.PtrReloc] |
682 | add edi, [coff] |
||
1289 | diamond | 683 | |
2434 | Serge | 684 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
685 | test ecx, ecx |
||
686 | jz .next |
||
1289 | diamond | 687 | .reloc_loop: |
2434 | Serge | 688 | cmp [edi+COFF_RELOC.Type], 6 |
689 | jne .next_reloc |
||
1289 | diamond | 690 | .dir_32: |
2434 | Serge | 691 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
692 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
693 | add [eax+edx], edx |
||
1289 | diamond | 694 | .next_reloc: |
2434 | Serge | 695 | add edi, 10 |
696 | dec ecx |
||
697 | jnz .reloc_loop |
||
1289 | diamond | 698 | .next: |
2434 | Serge | 699 | add esi, sizeof.COFF_SECTION |
700 | dec [n_sec] |
||
701 | jnz .fix_sec |
||
1289 | diamond | 702 | .exit: |
2434 | Serge | 703 | ret |
1289 | diamond | 704 | endp |
705 | |||
188 | serge | 706 | align 4 |
346 | diamond | 707 | proc load_driver stdcall, driver_name:dword |
2434 | Serge | 708 | locals |
709 | coff dd ? |
||
710 | sym dd ? |
||
711 | strings dd ? |
||
712 | img_size dd ? |
||
713 | img_base dd ? |
||
714 | start dd ? |
||
188 | serge | 715 | |
2434 | Serge | 716 | exports dd ? ;fake exports table |
717 | dd ? |
||
718 | file_name rb 13+16+4+1 ; '/sys/drivers/ |
||
719 | endl |
||
188 | serge | 720 | |
2434 | Serge | 721 | lea edx, [file_name] |
722 | mov dword [edx], '/sys' |
||
723 | mov dword [edx+4], '/dri' |
||
724 | mov dword [edx+8], 'vers' |
||
725 | mov byte [edx+12], '/' |
||
726 | mov esi, [driver_name] |
||
1018 | diamond | 727 | .redo: |
2434 | Serge | 728 | lea edx, [file_name] |
729 | lea edi, [edx+13] |
||
730 | mov ecx, 16 |
||
346 | diamond | 731 | @@: |
2434 | Serge | 732 | lodsb |
733 | test al, al |
||
734 | jz @f |
||
735 | stosb |
||
736 | loop @b |
||
346 | diamond | 737 | @@: |
2434 | Serge | 738 | mov dword [edi], '.obj' |
739 | mov byte [edi+4], 0 |
||
740 | stdcall load_file, edx |
||
214 | serge | 741 | |
2434 | Serge | 742 | test eax, eax |
743 | jz .exit |
||
188 | serge | 744 | |
2434 | Serge | 745 | mov [coff], eax |
188 | serge | 746 | |
2434 | Serge | 747 | movzx ecx, [eax+COFF_HEADER.nSections] |
748 | xor ebx, ebx |
||
188 | serge | 749 | |
2434 | Serge | 750 | lea edx, [eax+20] |
188 | serge | 751 | @@: |
2434 | Serge | 752 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
753 | add ebx, 15 |
||
754 | and ebx, not 15 |
||
755 | add edx, sizeof.COFF_SECTION |
||
756 | dec ecx |
||
757 | jnz @B |
||
758 | mov [img_size], ebx |
||
188 | serge | 759 | |
2434 | Serge | 760 | stdcall kernel_alloc, ebx |
761 | test eax, eax |
||
762 | jz .fail |
||
763 | mov [img_base], eax |
||
188 | serge | 764 | |
2434 | Serge | 765 | mov edi, eax |
766 | xor eax, eax |
||
767 | mov ecx, [img_size] |
||
768 | add ecx, 4095 |
||
769 | and ecx, not 4095 |
||
770 | shr ecx, 2 |
||
771 | cld |
||
772 | rep stosd |
||
188 | serge | 773 | |
2434 | Serge | 774 | mov edx, [coff] |
775 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
776 | mov edi, [img_base] |
||
777 | lea eax, [edx+20] |
||
188 | serge | 778 | @@: |
2434 | Serge | 779 | mov [eax+COFF_SECTION.VirtualAddress], edi |
780 | mov esi, [eax+COFF_SECTION.PtrRawData] |
||
781 | test esi, esi |
||
782 | jnz .copy |
||
783 | add edi, [eax+COFF_SECTION.SizeOfRawData] |
||
784 | jmp .next |
||
188 | serge | 785 | .copy: |
2434 | Serge | 786 | add esi, edx |
787 | mov ecx, [eax+COFF_SECTION.SizeOfRawData] |
||
788 | cld |
||
789 | rep movsb |
||
188 | serge | 790 | .next: |
2434 | Serge | 791 | add edi, 15 |
792 | and edi, not 15 |
||
793 | add eax, sizeof.COFF_SECTION |
||
794 | dec ebx |
||
795 | jnz @B |
||
188 | serge | 796 | |
2434 | Serge | 797 | mov ebx, [edx+COFF_HEADER.pSymTable] |
798 | add ebx, edx |
||
799 | mov [sym], ebx |
||
800 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
801 | add ecx, ecx |
||
802 | lea ecx, [ecx+ecx*8];ecx*=18 = nSymbols*CSYM_SIZE |
||
803 | add ecx, [sym] |
||
804 | mov [strings], ecx |
||
188 | serge | 805 | |
2434 | Serge | 806 | lea ebx, [exports] |
807 | mov dword [ebx], kernel_export |
||
808 | mov dword [ebx+4], 0 |
||
809 | lea eax, [edx+20] |
||
188 | serge | 810 | |
2434 | Serge | 811 | stdcall fix_coff_symbols, eax, [sym], [edx+COFF_HEADER.nSymbols], \ |
812 | [strings], ebx |
||
813 | test eax, eax |
||
814 | jz .link_fail |
||
188 | serge | 815 | |
2434 | Serge | 816 | mov ebx, [coff] |
817 | stdcall fix_coff_relocs, ebx, [sym], 0 |
||
188 | serge | 818 | |
2434 | Serge | 819 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szVersion |
820 | test eax, eax |
||
821 | jz .link_fail |
||
227 | serge | 822 | |
2434 | Serge | 823 | mov eax, [eax] |
824 | shr eax, 16 |
||
825 | cmp eax, DRV_COMPAT |
||
826 | jb .ver_fail |
||
227 | serge | 827 | |
2434 | Serge | 828 | cmp eax, DRV_CURRENT |
829 | ja .ver_fail |
||
227 | serge | 830 | |
2434 | Serge | 831 | mov ebx, [coff] |
832 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szSTART |
||
833 | mov [start], eax |
||
188 | serge | 834 | |
2434 | Serge | 835 | stdcall kernel_free, [coff] |
188 | serge | 836 | |
2434 | Serge | 837 | mov ebx, [start] |
838 | stdcall ebx, DRV_ENTRY |
||
839 | test eax, eax |
||
840 | jnz .ok |
||
188 | serge | 841 | |
2434 | Serge | 842 | stdcall kernel_free, [img_base] |
3232 | Serge | 843 | |
2434 | Serge | 844 | xor eax, eax |
845 | ret |
||
188 | serge | 846 | .ok: |
2434 | Serge | 847 | mov ebx, [img_base] |
848 | mov [eax+SRV.base], ebx |
||
849 | mov ecx, [start] |
||
850 | mov [eax+SRV.entry], ecx |
||
851 | ret |
||
227 | serge | 852 | |
853 | .ver_fail: |
||
2434 | Serge | 854 | mov esi, msg_CR |
855 | call sys_msg_board_str |
||
856 | mov esi, [driver_name] |
||
857 | call sys_msg_board_str |
||
858 | mov esi, msg_CR |
||
859 | call sys_msg_board_str |
||
860 | mov esi, msg_version |
||
861 | call sys_msg_board_str |
||
862 | mov esi, msg_www |
||
863 | call sys_msg_board_str |
||
864 | jmp .cleanup |
||
227 | serge | 865 | |
866 | .link_fail: |
||
2434 | Serge | 867 | mov esi, msg_module |
868 | call sys_msg_board_str |
||
869 | mov esi, [driver_name] |
||
870 | call sys_msg_board_str |
||
871 | mov esi, msg_CR |
||
872 | call sys_msg_board_str |
||
227 | serge | 873 | .cleanup: |
2434 | Serge | 874 | stdcall kernel_free, [img_base] |
188 | serge | 875 | .fail: |
2434 | Serge | 876 | stdcall kernel_free, [coff] |
227 | serge | 877 | .exit: |
2434 | Serge | 878 | xor eax, eax |
879 | ret |
||
164 | serge | 880 | endp |
881 | |||
1296 | diamond | 882 | ; in: edx -> COFF_SECTION struct |
883 | ; out: eax = alignment as mask for bits to drop |
||
884 | coff_get_align: |
||
885 | ; Rules: |
||
886 | ; - if alignment is not given, use default = 4K; |
||
887 | ; - if alignment is given and is no more than 4K, use it; |
||
888 | ; - if alignment is more than 4K, revert to 4K. |
||
2434 | Serge | 889 | push ecx |
890 | mov cl, byte [edx+COFF_SECTION.Characteristics+2] |
||
891 | mov eax, 1 |
||
892 | shr cl, 4 |
||
893 | dec cl |
||
894 | js .default |
||
895 | cmp cl, 12 |
||
896 | jbe @f |
||
1296 | diamond | 897 | .default: |
2434 | Serge | 898 | mov cl, 12 |
1296 | diamond | 899 | @@: |
2434 | Serge | 900 | shl eax, cl |
901 | pop ecx |
||
902 | dec eax |
||
903 | ret |
||
1296 | diamond | 904 | |
198 | serge | 905 | align 4 |
906 | proc load_library stdcall, file_name:dword |
||
2434 | Serge | 907 | locals |
908 | fullname rb 260 |
||
909 | fileinfo rb 40 |
||
910 | coff dd ? |
||
911 | img_base dd ? |
||
912 | endl |
||
198 | serge | 913 | |
2434 | Serge | 914 | cli |
198 | serge | 915 | |
1289 | diamond | 916 | ; resolve file name |
2434 | Serge | 917 | mov ebx, [file_name] |
918 | lea edi, [fullname+1] |
||
919 | mov byte [edi-1], '/' |
||
920 | stdcall get_full_file_name, edi, 259 |
||
921 | test al, al |
||
922 | jz .fail |
||
1289 | diamond | 923 | |
924 | ; scan for required DLL in list of already loaded for this process, |
||
925 | ; ignore timestamp |
||
2434 | Serge | 926 | mov esi, [CURRENT_TASK] |
927 | shl esi, 8 |
||
928 | lea edi, [fullname] |
||
929 | mov ebx, [esi+SLOT_BASE+APPDATA.dlls_list_ptr] |
||
930 | test ebx, ebx |
||
931 | jz .not_in_process |
||
932 | mov esi, [ebx+HDLL.fd] |
||
1289 | diamond | 933 | .scan_in_process: |
2434 | Serge | 934 | cmp esi, ebx |
935 | jz .not_in_process |
||
936 | mov eax, [esi+HDLL.parent] |
||
937 | add eax, DLLDESCR.name |
||
938 | stdcall strncmp, eax, edi, -1 |
||
939 | test eax, eax |
||
940 | jnz .next_in_process |
||
1289 | diamond | 941 | ; simple variant: load DLL which is already loaded in this process |
942 | ; just increment reference counters and return address of exports table |
||
2434 | Serge | 943 | inc [esi+HDLL.refcount] |
944 | mov ecx, [esi+HDLL.parent] |
||
945 | inc [ecx+DLLDESCR.refcount] |
||
946 | mov eax, [ecx+DLLDESCR.exports] |
||
947 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
948 | add eax, [esi+HDLL.base] |
||
949 | ret |
||
1289 | diamond | 950 | .next_in_process: |
2434 | Serge | 951 | mov esi, [esi+HDLL.fd] |
952 | jmp .scan_in_process |
||
1289 | diamond | 953 | .not_in_process: |
954 | |||
955 | ; scan in full list, compare timestamp |
||
2434 | Serge | 956 | lea eax, [fileinfo] |
957 | stdcall get_fileinfo, edi, eax |
||
958 | test eax, eax |
||
959 | jnz .fail |
||
960 | mov esi, [dll_list.fd] |
||
1289 | diamond | 961 | .scan_for_dlls: |
2434 | Serge | 962 | cmp esi, dll_list |
963 | jz .load_new |
||
964 | lea eax, [esi+DLLDESCR.name] |
||
965 | stdcall strncmp, eax, edi, -1 |
||
966 | test eax, eax |
||
967 | jnz .continue_scan |
||
1289 | diamond | 968 | .test_prev_dll: |
2434 | Serge | 969 | mov eax, dword [fileinfo+24]; last modified time |
970 | mov edx, dword [fileinfo+28]; last modified date |
||
971 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
972 | jnz .continue_scan |
||
973 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
974 | jz .dll_already_loaded |
||
1289 | diamond | 975 | .continue_scan: |
2434 | Serge | 976 | mov esi, [esi+DLLDESCR.fd] |
977 | jmp .scan_for_dlls |
||
1289 | diamond | 978 | |
979 | ; new DLL |
||
980 | .load_new: |
||
981 | ; load file |
||
2434 | Serge | 982 | stdcall load_file, edi |
983 | test eax, eax |
||
984 | jz .fail |
||
985 | mov [coff], eax |
||
986 | mov dword [fileinfo+32], ebx |
||
198 | serge | 987 | |
1289 | diamond | 988 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
2434 | Serge | 989 | mov esi, edi |
990 | mov ecx, -1 |
||
991 | xor eax, eax |
||
992 | repnz scasb |
||
993 | not ecx |
||
994 | lea eax, [ecx+sizeof.DLLDESCR] |
||
995 | push ecx |
||
996 | call malloc |
||
997 | pop ecx |
||
998 | test eax, eax |
||
999 | jz .fail_and_free_coff |
||
1289 | diamond | 1000 | ; save timestamp |
2434 | Serge | 1001 | lea edi, [eax+DLLDESCR.name] |
1002 | rep movsb |
||
1003 | mov esi, eax |
||
1004 | mov eax, dword [fileinfo+24] |
||
1005 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1006 | mov eax, dword [fileinfo+28] |
||
1007 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1289 | diamond | 1008 | ; initialize DLLDESCR struct |
2434 | Serge | 1009 | and dword [esi+DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
1010 | mov [esi+DLLDESCR.fd], dll_list |
||
1011 | mov eax, [dll_list.bk] |
||
1012 | mov [dll_list.bk], esi |
||
1013 | mov [esi+DLLDESCR.bk], eax |
||
1014 | mov [eax+DLLDESCR.fd], esi |
||
1289 | diamond | 1015 | |
1016 | ; calculate size of loaded DLL |
||
2434 | Serge | 1017 | mov edx, [coff] |
1018 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1019 | xor ebx, ebx |
||
198 | serge | 1020 | |
2434 | Serge | 1021 | add edx, 20 |
198 | serge | 1022 | @@: |
2434 | Serge | 1023 | call coff_get_align |
1024 | add ebx, eax |
||
1025 | not eax |
||
1026 | and ebx, eax |
||
1027 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
||
1028 | add edx, sizeof.COFF_SECTION |
||
1029 | dec ecx |
||
1030 | jnz @B |
||
1289 | diamond | 1031 | ; it must be nonzero and not too big |
2434 | Serge | 1032 | mov [esi+DLLDESCR.size], ebx |
1033 | test ebx, ebx |
||
1034 | jz .fail_and_free_dll |
||
1035 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1036 | ja .fail_and_free_dll |
||
1289 | diamond | 1037 | ; allocate memory for kernel-side image |
2434 | Serge | 1038 | stdcall kernel_alloc, ebx |
1039 | test eax, eax |
||
1040 | jz .fail_and_free_dll |
||
1041 | mov [esi+DLLDESCR.data], eax |
||
1289 | diamond | 1042 | ; calculate preferred base address |
2434 | Serge | 1043 | add ebx, 0x1FFF |
1044 | and ebx, not 0xFFF |
||
1045 | mov ecx, [dll_cur_addr] |
||
1046 | lea edx, [ecx+ebx] |
||
1047 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1048 | jb @f |
||
1049 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1050 | lea edx, [ecx+ebx] |
||
1289 | diamond | 1051 | @@: |
2434 | Serge | 1052 | mov [esi+DLLDESCR.defaultbase], ecx |
1053 | mov [dll_cur_addr], edx |
||
198 | serge | 1054 | |
1289 | diamond | 1055 | ; copy sections and set correct values for VirtualAddress'es in headers |
2434 | Serge | 1056 | push esi |
1057 | mov edx, [coff] |
||
1058 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
1059 | mov edi, eax |
||
1060 | add edx, 20 |
||
1061 | cld |
||
198 | serge | 1062 | @@: |
2434 | Serge | 1063 | call coff_get_align |
1064 | add ecx, eax |
||
1065 | add edi, eax |
||
1066 | not eax |
||
1067 | and ecx, eax |
||
1068 | and edi, eax |
||
1069 | mov [edx+COFF_SECTION.VirtualAddress], ecx |
||
1070 | add ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1071 | mov esi, [edx+COFF_SECTION.PtrRawData] |
||
1072 | push ecx |
||
1073 | mov ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1074 | test esi, esi |
||
1075 | jnz .copy |
||
1076 | xor eax, eax |
||
1077 | rep stosb |
||
1078 | jmp .next |
||
198 | serge | 1079 | .copy: |
2434 | Serge | 1080 | add esi, [coff] |
1081 | rep movsb |
||
198 | serge | 1082 | .next: |
2434 | Serge | 1083 | pop ecx |
1084 | add edx, sizeof.COFF_SECTION |
||
1085 | dec ebx |
||
1086 | jnz @B |
||
1087 | pop esi |
||
198 | serge | 1088 | |
1289 | diamond | 1089 | ; save some additional data from COFF file |
1090 | ; later we will use COFF header, headers for sections and symbol table |
||
1091 | ; and also relocations table for all sections |
||
2434 | Serge | 1092 | mov edx, [coff] |
1093 | mov ebx, [edx+COFF_HEADER.pSymTable] |
||
1094 | mov edi, dword [fileinfo+32] |
||
1095 | sub edi, ebx |
||
1096 | jc .fail_and_free_data |
||
1097 | mov [esi+DLLDESCR.symbols_lim], edi |
||
1098 | add ebx, edx |
||
1099 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1100 | lea ecx, [ecx*5] |
||
1101 | lea edi, [edi+ecx*8+20] |
||
1102 | add edx, 20 |
||
1289 | diamond | 1103 | @@: |
2434 | Serge | 1104 | movzx eax, [edx+COFF_SECTION.NumReloc] |
1105 | lea eax, [eax*5] |
||
1106 | lea edi, [edi+eax*2] |
||
1107 | add edx, sizeof.COFF_SECTION |
||
1108 | sub ecx, 5 |
||
1109 | jnz @b |
||
1110 | stdcall kernel_alloc, edi |
||
1111 | test eax, eax |
||
1112 | jz .fail_and_free_data |
||
1113 | mov edx, [coff] |
||
1114 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1115 | lea ecx, [ecx*5] |
||
1116 | lea ecx, [ecx*2+5] |
||
1117 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1118 | push esi |
||
1119 | mov esi, edx |
||
1120 | mov edi, eax |
||
1121 | rep movsd |
||
1122 | pop esi |
||
1123 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1124 | push esi |
||
1125 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
1126 | mov [esi+DLLDESCR.symbols_num], ecx |
||
1127 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1128 | mov esi, ebx |
||
1129 | rep movsb |
||
1130 | pop esi |
||
1131 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1132 | push esi |
||
1133 | movzx eax, [edx+COFF_HEADER.nSections] |
||
1134 | lea edx, [ebx+20] |
||
1289 | diamond | 1135 | @@: |
2434 | Serge | 1136 | movzx ecx, [edx+COFF_SECTION.NumReloc] |
1137 | lea ecx, [ecx*5] |
||
1138 | mov esi, [edx+COFF_SECTION.PtrReloc] |
||
1139 | mov [edx+COFF_SECTION.PtrReloc], edi |
||
1140 | sub [edx+COFF_SECTION.PtrReloc], ebx |
||
1141 | add esi, [coff] |
||
1142 | shr ecx, 1 |
||
1143 | rep movsd |
||
1144 | adc ecx, ecx |
||
1145 | rep movsw |
||
1146 | add edx, sizeof.COFF_SECTION |
||
1147 | dec eax |
||
1148 | jnz @b |
||
1149 | pop esi |
||
198 | serge | 1150 | |
1289 | diamond | 1151 | ; fixup symbols |
2434 | Serge | 1152 | mov edx, ebx |
1153 | mov eax, [ebx+COFF_HEADER.nSymbols] |
||
1154 | add edx, 20 |
||
1155 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1156 | lea ecx, [ecx*9] |
||
1157 | add ecx, ecx |
||
1158 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
198 | serge | 1159 | |
2434 | Serge | 1160 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax, \ |
1161 | ecx, 0 |
||
1162 | ; test eax, eax |
||
1163 | ; jnz @F |
||
1289 | diamond | 1164 | ; |
1165 | ;@@: |
||
1166 | |||
2434 | Serge | 1167 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], szEXPORTS |
1168 | test eax, eax |
||
1169 | jnz @F |
||
198 | serge | 1170 | |
2434 | Serge | 1171 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], sz_EXPORTS |
198 | serge | 1172 | @@: |
2434 | Serge | 1173 | mov [esi+DLLDESCR.exports], eax |
198 | serge | 1174 | |
1289 | diamond | 1175 | ; fix relocs in the hidden copy in kernel memory to default address |
1176 | ; it is first fix; usually this will be enough, but second fix |
||
1177 | ; can be necessary if real load address will not equal assumption |
||
2434 | Serge | 1178 | mov eax, [esi+DLLDESCR.data] |
1179 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1180 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
198 | serge | 1181 | |
2434 | Serge | 1182 | stdcall kernel_free, [coff] |
916 | serge | 1183 | |
1289 | diamond | 1184 | .dll_already_loaded: |
2434 | Serge | 1185 | inc [esi+DLLDESCR.refcount] |
1186 | push esi |
||
1187 | call init_heap |
||
1188 | pop esi |
||
1289 | diamond | 1189 | |
2434 | Serge | 1190 | mov edi, [esi+DLLDESCR.size] |
1191 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1192 | test eax, eax |
||
1193 | jnz @f |
||
1194 | stdcall user_alloc, edi |
||
1195 | test eax, eax |
||
1196 | jz .fail_and_dereference |
||
917 | diamond | 1197 | @@: |
2434 | Serge | 1198 | mov [img_base], eax |
1199 | mov eax, sizeof.HDLL |
||
1200 | call malloc |
||
1201 | test eax, eax |
||
1202 | jz .fail_and_free_user |
||
1203 | mov ebx, [CURRENT_TASK] |
||
1204 | shl ebx, 5 |
||
1205 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
||
1206 | mov [eax+HDLL.pid], edx |
||
1207 | push eax |
||
1208 | call init_dlls_in_thread |
||
1209 | pop ebx |
||
1210 | test eax, eax |
||
1211 | jz .fail_and_free_user |
||
1212 | mov edx, [eax+HDLL.fd] |
||
1213 | mov [ebx+HDLL.fd], edx |
||
1214 | mov [ebx+HDLL.bk], eax |
||
1215 | mov [eax+HDLL.fd], ebx |
||
1216 | mov [edx+HDLL.bk], ebx |
||
1217 | mov eax, ebx |
||
1218 | mov ebx, [img_base] |
||
1219 | mov [eax+HDLL.base], ebx |
||
1220 | mov [eax+HDLL.size], edi |
||
1221 | mov [eax+HDLL.refcount], 1 |
||
1222 | mov [eax+HDLL.parent], esi |
||
1223 | mov edx, ebx |
||
1224 | shr edx, 12 |
||
1225 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1289 | diamond | 1226 | ; copy entries of page table from kernel-side image to usermode |
1227 | ; use copy-on-write for user-mode image, so map as readonly |
||
2434 | Serge | 1228 | xor edi, edi |
1229 | mov ecx, [esi+DLLDESCR.data] |
||
1230 | shr ecx, 12 |
||
1289 | diamond | 1231 | .map_pages_loop: |
2434 | Serge | 1232 | mov eax, [page_tabs+ecx*4] |
1233 | and eax, not 0xFFF |
||
1234 | or al, PG_USER |
||
1235 | xchg eax, [page_tabs+edx*4] |
||
1236 | test al, 1 |
||
1237 | jz @f |
||
1238 | call free_page |
||
1289 | diamond | 1239 | @@: |
2434 | Serge | 1240 | invlpg [ebx+edi] |
1241 | inc ecx |
||
1242 | inc edx |
||
1243 | add edi, 0x1000 |
||
1244 | cmp edi, [esi+DLLDESCR.size] |
||
1245 | jb .map_pages_loop |
||
1289 | diamond | 1246 | |
1247 | ; if real user-mode base is not equal to preferred base, relocate image |
||
2434 | Serge | 1248 | sub ebx, [esi+DLLDESCR.defaultbase] |
1249 | jz @f |
||
1250 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1289 | diamond | 1251 | @@: |
1252 | |||
2434 | Serge | 1253 | mov eax, [esi+DLLDESCR.exports] |
1254 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1255 | add eax, [img_base] |
||
1256 | ret |
||
1289 | diamond | 1257 | .fail_and_free_data: |
2434 | Serge | 1258 | stdcall kernel_free, [esi+DLLDESCR.data] |
1289 | diamond | 1259 | .fail_and_free_dll: |
2434 | Serge | 1260 | mov eax, esi |
1261 | call free |
||
1289 | diamond | 1262 | .fail_and_free_coff: |
2434 | Serge | 1263 | stdcall kernel_free, [coff] |
198 | serge | 1264 | .fail: |
2434 | Serge | 1265 | xor eax, eax |
1266 | ret |
||
1289 | diamond | 1267 | .fail_and_free_user: |
2434 | Serge | 1268 | stdcall user_free, [img_base] |
1289 | diamond | 1269 | .fail_and_dereference: |
2434 | Serge | 1270 | mov eax, 1 ; delete 1 reference |
1271 | call dereference_dll |
||
1272 | xor eax, eax |
||
1273 | ret |
||
198 | serge | 1274 | endp |
1275 | |||
1311 | diamond | 1276 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
1277 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1278 | ; kept in sync for all threads of one process. |
||
1279 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1280 | ; NULL if memory allocation failed |
||
1281 | init_dlls_in_thread: |
||
2434 | Serge | 1282 | mov ebx, [current_slot] |
1283 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
1284 | test eax, eax |
||
1285 | jnz .ret |
||
1286 | push [ebx+APPDATA.dir_table] |
||
1287 | mov eax, 8 |
||
1288 | call malloc |
||
1289 | pop edx |
||
1290 | test eax, eax |
||
1291 | jz .ret |
||
1292 | mov [eax], eax |
||
1293 | mov [eax+4], eax |
||
1294 | mov ecx, [TASK_COUNT] |
||
1295 | mov ebx, SLOT_BASE+256 |
||
1311 | diamond | 1296 | .set: |
2434 | Serge | 1297 | cmp [ebx+APPDATA.dir_table], edx |
1298 | jnz @f |
||
1299 | mov [ebx+APPDATA.dlls_list_ptr], eax |
||
1311 | diamond | 1300 | @@: |
2434 | Serge | 1301 | add ebx, 256 |
1302 | dec ecx |
||
1303 | jnz .set |
||
1311 | diamond | 1304 | .ret: |
2434 | Serge | 1305 | ret |
1311 | diamond | 1306 | |
1289 | diamond | 1307 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
1308 | dereference_dll: |
||
2434 | Serge | 1309 | sub [esi+DLLDESCR.refcount], eax |
1310 | jnz .ret |
||
1311 | mov eax, [esi+DLLDESCR.fd] |
||
1312 | mov edx, [esi+DLLDESCR.bk] |
||
1313 | mov [eax+DLLDESCR.bk], edx |
||
1314 | mov [edx+DLLDESCR.fd], eax |
||
1315 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
||
1316 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1317 | mov eax, esi |
||
1318 | call free |
||
1289 | diamond | 1319 | .ret: |
2434 | Serge | 1320 | ret |
1289 | diamond | 1321 | |
1322 | destroy_hdll: |
||
2434 | Serge | 1323 | push ebx ecx esi edi |
1324 | push eax |
||
1325 | mov ebx, [eax+HDLL.base] |
||
1326 | mov esi, [eax+HDLL.parent] |
||
1327 | mov edx, [esi+DLLDESCR.size] |
||
1292 | diamond | 1328 | ; The following actions require the context of application where HDLL is mapped. |
1329 | ; However, destroy_hdll can be called in the context of OS thread when |
||
1330 | ; cleaning up objects created by the application which is destroyed. |
||
1331 | ; So remember current cr3 and set it to page table of target. |
||
2434 | Serge | 1332 | mov eax, [ecx+APPDATA.dir_table] |
1292 | diamond | 1333 | ; Because we cheat with cr3, disable interrupts: task switch would restore |
1334 | ; page table from APPDATA of current thread. |
||
1335 | ; Also set [current_slot] because it is used by user_free. |
||
2434 | Serge | 1336 | pushf |
1337 | cli |
||
1338 | push [current_slot] |
||
1339 | mov [current_slot], ecx |
||
1340 | mov ecx, cr3 |
||
1341 | push ecx |
||
1342 | mov cr3, eax |
||
1343 | push ebx ; argument for user_free |
||
1344 | mov eax, ebx |
||
1345 | shr ebx, 12 |
||
1346 | push ebx |
||
1347 | mov esi, [esi+DLLDESCR.data] |
||
1348 | shr esi, 12 |
||
1289 | diamond | 1349 | .unmap_loop: |
2434 | Serge | 1350 | push eax |
1351 | mov eax, 2 |
||
1352 | xchg eax, [page_tabs+ebx*4] |
||
1353 | mov ecx, [page_tabs+esi*4] |
||
1354 | and eax, not 0xFFF |
||
1355 | and ecx, not 0xFFF |
||
1356 | cmp eax, ecx |
||
1357 | jz @f |
||
1358 | call free_page |
||
1289 | diamond | 1359 | @@: |
2434 | Serge | 1360 | pop eax |
1361 | invlpg [eax] |
||
1362 | add eax, 0x1000 |
||
1363 | inc ebx |
||
1364 | inc esi |
||
1365 | sub edx, 0x1000 |
||
1366 | ja .unmap_loop |
||
1367 | pop ebx |
||
1368 | and dword [page_tabs+(ebx-1)*4], not DONT_FREE_BLOCK |
||
1369 | call user_free |
||
1292 | diamond | 1370 | ; Restore context. |
2434 | Serge | 1371 | pop eax |
1372 | mov cr3, eax |
||
1373 | pop [current_slot] |
||
1374 | popf |
||
1292 | diamond | 1375 | ; Ok, cheating is done. |
2434 | Serge | 1376 | pop eax |
1377 | push eax |
||
1378 | mov esi, [eax+HDLL.parent] |
||
1379 | mov eax, [eax+HDLL.refcount] |
||
1380 | call dereference_dll |
||
1381 | pop eax |
||
1382 | mov edx, [eax+HDLL.bk] |
||
1383 | mov ebx, [eax+HDLL.fd] |
||
1384 | mov [ebx+HDLL.bk], edx |
||
1385 | mov [edx+HDLL.fd], ebx |
||
1386 | call free |
||
1387 | pop edi esi ecx ebx |
||
1388 | ret |
||
1289 | diamond | 1389 | |
1311 | diamond | 1390 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
1391 | destroy_all_hdlls: |
||
2434 | Serge | 1392 | test esi, esi |
1393 | jz .ret |
||
1311 | diamond | 1394 | .loop: |
2434 | Serge | 1395 | mov eax, [esi+HDLL.fd] |
1396 | cmp eax, esi |
||
1397 | jz free |
||
1398 | call destroy_hdll |
||
1399 | jmp .loop |
||
1311 | diamond | 1400 | .ret: |
2434 | Serge | 1401 | ret |
1311 | diamond | 1402 | |
214 | serge | 1403 | align 4 |
1275 | serge | 1404 | stop_all_services: |
2434 | Serge | 1405 | push ebp |
1406 | mov edx, [srv.fd] |
||
214 | serge | 1407 | .next: |
2434 | Serge | 1408 | cmp edx, srv.fd-SRV.fd |
1409 | je .done |
||
1410 | cmp [edx+SRV.magic], ' SRV' |
||
1411 | jne .next |
||
1412 | cmp [edx+SRV.size], sizeof.SRV |
||
1413 | jne .next |
||
732 | serge | 1414 | |
2434 | Serge | 1415 | mov ebx, [edx+SRV.entry] |
1416 | mov edx, [edx+SRV.fd] |
||
1417 | test ebx, ebx |
||
1418 | jz .next |
||
732 | serge | 1419 | |
2434 | Serge | 1420 | push edx |
1421 | mov ebp, esp |
||
1422 | push 0 |
||
1423 | push -1 |
||
1424 | call ebx |
||
1425 | mov esp, ebp |
||
1426 | pop edx |
||
1427 | jmp .next |
||
278 | serge | 1428 | .done: |
2434 | Serge | 1429 | pop ebp |
1430 | ret |
||
198 | serge | 1431 | |
281 | serge | 1432 | ; param |
291 | serge | 1433 | ; eax= size |
1434 | ; ebx= pid |
||
214 | serge | 1435 | |
281 | serge | 1436 | align 4 |
1437 | create_kernel_object: |
||
1438 | |||
2434 | Serge | 1439 | push ebx |
1440 | call malloc |
||
1441 | pop ebx |
||
1442 | test eax, eax |
||
1443 | jz .fail |
||
281 | serge | 1444 | |
2434 | Serge | 1445 | mov ecx, [current_slot] |
1446 | add ecx, APP_OBJ_OFFSET |
||
281 | serge | 1447 | |
2434 | Serge | 1448 | pushfd |
1449 | cli |
||
1450 | mov edx, [ecx+APPOBJ.fd] |
||
1451 | mov [eax+APPOBJ.fd], edx |
||
1452 | mov [eax+APPOBJ.bk], ecx |
||
1453 | mov [eax+APPOBJ.pid], ebx |
||
281 | serge | 1454 | |
2434 | Serge | 1455 | mov [ecx+APPOBJ.fd], eax |
1456 | mov [edx+APPOBJ.bk], eax |
||
1457 | popfd |
||
281 | serge | 1458 | .fail: |
2434 | Serge | 1459 | ret |
281 | serge | 1460 | |
1461 | ; param |
||
1462 | ; eax= object |
||
1463 | |||
1464 | align 4 |
||
1465 | destroy_kernel_object: |
||
1466 | |||
2434 | Serge | 1467 | pushfd |
1468 | cli |
||
1469 | mov ebx, [eax+APPOBJ.fd] |
||
1470 | mov ecx, [eax+APPOBJ.bk] |
||
1471 | mov [ebx+APPOBJ.bk], ecx |
||
1472 | mov [ecx+APPOBJ.fd], ebx |
||
1473 | popfd |
||
281 | serge | 1474 | |
2434 | Serge | 1475 | xor edx, edx ;clear common header |
1476 | mov [eax], edx |
||
1477 | mov [eax+4], edx |
||
1478 | mov [eax+8], edx |
||
1479 | mov [eax+12], edx |
||
1480 | mov [eax+16], edx |
||
281 | serge | 1481 | |
2434 | Serge | 1482 | call free ;release object memory |
1483 | ret |