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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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9715 | Doczom | 3 | ;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;; |
6502 | pathoswith | 4 | ;; Distributed under terms of the GNU General Public License. ;; |
2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 9715 $ |
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9 | |||
10 | |||
7136 | dunkaist | 11 | DRV_COMPAT = 5 ;minimal required drivers version |
12 | DRV_CURRENT = 6 ;current drivers model version |
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2288 | clevermous | 13 | |
7136 | dunkaist | 14 | DRV_VERSION = (DRV_COMPAT shl 16) or DRV_CURRENT |
15 | PID_KERNEL = 1 ;os_idle thread |
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2288 | clevermous | 16 | |
17 | |||
18 | |||
19 | align 4 |
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20 | proc get_notify stdcall, p_ev:dword |
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21 | |||
22 | .wait: |
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23 | mov ebx, [current_slot] |
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9715 | Doczom | 24 | test dword [ebx + APPDATA.event_mask], EVENT_NOTIFY |
2288 | clevermous | 25 | jz @f |
9715 | Doczom | 26 | and dword [ebx + APPDATA.event_mask], not EVENT_NOTIFY |
2288 | clevermous | 27 | mov edi, [p_ev] |
28 | mov dword [edi], EV_INTR |
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9715 | Doczom | 29 | mov eax, [ebx + APPDATA.event] |
2288 | clevermous | 30 | mov dword [edi+4], eax |
31 | ret |
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32 | @@: |
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33 | call change_task |
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34 | jmp .wait |
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35 | endp |
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36 | |||
37 | |||
38 | |||
39 | handle equ IOCTL.handle |
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40 | io_code equ IOCTL.io_code |
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41 | input equ IOCTL.input |
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42 | inp_size equ IOCTL.inp_size |
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43 | output equ IOCTL.output |
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44 | out_size equ IOCTL.out_size |
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45 | |||
46 | |||
47 | align 4 |
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48 | proc srv_handler stdcall, ioctl:dword |
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49 | mov esi, [ioctl] |
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50 | test esi, esi |
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51 | jz .err |
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52 | |||
9715 | Doczom | 53 | mov edi, [esi + handle] |
54 | cmp [edi + SRV.magic], ' SRV' |
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2288 | clevermous | 55 | jne .fail |
56 | |||
9715 | Doczom | 57 | cmp [edi + SRV.size], sizeof.SRV |
2288 | clevermous | 58 | jne .fail |
59 | |||
3520 | clevermous | 60 | ; stdcall [edi+SRV.srv_proc], esi |
9715 | Doczom | 61 | mov eax, [edi + SRV.srv_proc] |
3520 | clevermous | 62 | test eax, eax |
63 | jz .fail |
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64 | stdcall eax, esi |
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2288 | clevermous | 65 | ret |
66 | .fail: |
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67 | xor eax, eax |
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68 | not eax |
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9715 | Doczom | 69 | mov [esi + output], eax |
70 | mov [esi + out_size], 4 |
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2288 | clevermous | 71 | ret |
72 | .err: |
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73 | xor eax, eax |
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74 | not eax |
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75 | ret |
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76 | endp |
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77 | |||
78 | ; param |
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79 | ; ecx= io_control |
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80 | ; |
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81 | ; retval |
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82 | ; eax= error code |
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83 | |||
84 | align 4 |
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85 | srv_handlerEx: |
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86 | cmp ecx, OS_BASE |
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87 | jae .fail |
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88 | |||
9715 | Doczom | 89 | mov eax, [ecx + handle] |
9430 | Doczom | 90 | |
91 | cmp eax, OS_BASE |
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9440 | Doczom | 92 | jbe .fail |
9430 | Doczom | 93 | |
9715 | Doczom | 94 | cmp [eax + SRV.magic], ' SRV' |
2288 | clevermous | 95 | jne .fail |
96 | |||
9715 | Doczom | 97 | cmp [eax + SRV.size], sizeof.SRV |
2288 | clevermous | 98 | jne .fail |
99 | |||
3520 | clevermous | 100 | ; stdcall [eax+SRV.srv_proc], ecx |
9715 | Doczom | 101 | mov eax, [eax + SRV.srv_proc] |
3520 | clevermous | 102 | test eax, eax |
103 | jz .fail |
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104 | stdcall eax, ecx |
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2288 | clevermous | 105 | ret |
106 | .fail: |
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107 | or eax, -1 |
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108 | ret |
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109 | |||
110 | restore handle |
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111 | restore io_code |
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112 | restore input |
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113 | restore inp_size |
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114 | restore output |
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115 | restore out_size |
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116 | |||
117 | align 4 |
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118 | proc get_service stdcall, sz_name:dword |
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119 | mov eax, [sz_name] |
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120 | test eax, eax |
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121 | jnz @F |
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122 | ret |
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123 | @@: |
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124 | mov edx, [srv.fd] |
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125 | @@: |
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9715 | Doczom | 126 | cmp edx, srv.fd - SRV.fd |
2288 | clevermous | 127 | je .not_load |
128 | |||
129 | stdcall strncmp, edx, [sz_name], 16 |
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130 | test eax, eax |
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5088 | clevermous | 131 | mov eax, edx |
132 | je .nothing |
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2288 | clevermous | 133 | |
9715 | Doczom | 134 | mov edx, [edx + SRV.fd] |
2288 | clevermous | 135 | jmp @B |
136 | .not_load: |
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4418 | clevermous | 137 | mov eax, [sz_name] |
138 | push edi |
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139 | sub esp, 36 |
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140 | mov edi, esp |
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141 | mov dword [edi], '/sys' |
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142 | mov dword [edi+4], '/dri' |
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143 | mov dword [edi+8], 'vers' |
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144 | mov byte [edi+12], '/' |
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145 | @@: |
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146 | mov dl, [eax] |
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147 | mov [edi+13], dl |
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148 | inc eax |
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149 | inc edi |
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150 | test dl, dl |
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151 | jnz @b |
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152 | mov dword [edi+12], '.sys' |
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153 | mov byte [edi+16], 0 |
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154 | mov edi, esp |
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155 | stdcall load_pe_driver, edi, 0 |
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156 | add esp, 36 |
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157 | pop edi |
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158 | .nothing: |
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2288 | clevermous | 159 | ret |
160 | endp |
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161 | |||
3520 | clevermous | 162 | reg_service: |
163 | xor eax, eax |
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164 | mov ecx, [esp+8] |
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165 | jecxz .nothing |
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166 | push sizeof.SRV |
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167 | push ecx |
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168 | pushd [esp+12] |
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169 | call reg_service_ex |
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170 | .nothing: |
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171 | ret 8 |
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2288 | clevermous | 172 | |
3520 | clevermous | 173 | reg_usb_driver: |
174 | push sizeof.USBSRV |
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175 | pushd [esp+12] |
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176 | pushd [esp+12] |
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177 | call reg_service_ex |
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178 | test eax, eax |
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179 | jz .nothing |
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180 | mov ecx, [esp+12] |
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181 | mov [eax+USBSRV.usb_func], ecx |
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182 | .nothing: |
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183 | ret 12 |
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184 | |||
185 | proc reg_service_ex stdcall, name:dword, handler:dword, srvsize:dword |
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186 | |||
2288 | clevermous | 187 | push ebx |
188 | |||
189 | xor eax, eax |
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190 | |||
191 | cmp [name], eax |
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192 | je .fail |
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193 | |||
3520 | clevermous | 194 | ; cmp [handler], eax |
195 | ; je .fail |
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2288 | clevermous | 196 | |
3520 | clevermous | 197 | mov eax, [srvsize] |
2288 | clevermous | 198 | call malloc |
199 | test eax, eax |
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200 | jz .fail |
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201 | |||
202 | push esi |
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203 | push edi |
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204 | mov edi, eax |
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205 | mov esi, [name] |
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206 | movsd |
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207 | movsd |
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208 | movsd |
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209 | movsd |
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210 | pop edi |
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211 | pop esi |
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212 | |||
9715 | Doczom | 213 | mov [eax + SRV.magic], ' SRV' |
214 | mov [eax + SRV.size], sizeof.SRV |
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2288 | clevermous | 215 | |
9715 | Doczom | 216 | mov ebx, srv.fd - SRV.fd |
217 | mov edx, [ebx + SRV.fd] |
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218 | mov [eax + SRV.fd], edx |
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219 | mov [eax + SRV.bk], ebx |
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220 | mov [ebx + SRV.fd], eax |
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221 | mov [edx + SRV.bk], eax |
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2288 | clevermous | 222 | |
223 | mov ecx, [handler] |
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9715 | Doczom | 224 | mov [eax + SRV.srv_proc], ecx |
9440 | Doczom | 225 | ;dec [count_services] |
2288 | clevermous | 226 | pop ebx |
227 | ret |
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228 | .fail: |
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229 | xor eax, eax |
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230 | pop ebx |
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231 | ret |
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232 | endp |
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233 | |||
234 | align 4 |
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9567 | Doczom | 235 | stop_all_services: ;used in shutdown system |
236 | push ebp |
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237 | mov edx, [srv.fd] |
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238 | .next: |
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9715 | Doczom | 239 | cmp edx, srv.fd - SRV.fd |
9567 | Doczom | 240 | je .done |
9715 | Doczom | 241 | cmp [edx + SRV.magic], ' SRV' |
9567 | Doczom | 242 | jne .next |
9715 | Doczom | 243 | cmp [edx + SRV.size], sizeof.SRV |
9567 | Doczom | 244 | jne .next |
245 | |||
9715 | Doczom | 246 | mov ebx, [edx + SRV.entry] |
247 | mov edx, [edx + SRV.fd] |
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9567 | Doczom | 248 | test ebx, ebx |
249 | jz .next |
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250 | |||
251 | push edx |
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252 | mov ebp, esp |
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253 | push 0 |
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254 | push DRV_EXIT |
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255 | call ebx ;stdcall |
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256 | mov esp, ebp |
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257 | pop edx |
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258 | jmp .next |
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259 | .done: |
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260 | pop ebp |
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261 | ret |
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262 | |||
263 | align 4 |
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2288 | clevermous | 264 | proc get_proc stdcall, exp:dword, sz_name:dword |
265 | |||
266 | mov edx, [exp] |
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267 | .next: |
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268 | mov eax, [edx] |
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269 | test eax, eax |
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270 | jz .end |
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271 | |||
272 | push edx |
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273 | stdcall strncmp, eax, [sz_name], 16 |
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274 | pop edx |
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275 | test eax, eax |
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276 | jz .ok |
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277 | |||
278 | add edx, 8 |
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279 | jmp .next |
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280 | .ok: |
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281 | mov eax, [edx+4] |
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282 | .end: |
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283 | ret |
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284 | endp |
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285 | |||
286 | align 4 |
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287 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
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288 | |||
289 | @@: |
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290 | stdcall strncmp, [pSym], [sz_sym], 8 |
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291 | test eax, eax |
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292 | jz .ok |
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293 | add [pSym], 18 |
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294 | dec [count] |
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295 | jnz @b |
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296 | xor eax, eax |
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297 | ret |
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298 | .ok: |
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299 | mov eax, [pSym] |
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300 | mov eax, [eax+8] |
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301 | ret |
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302 | endp |
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303 | |||
304 | align 4 |
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305 | proc get_curr_task |
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8869 | rgimad | 306 | mov eax, [current_slot_idx] |
2288 | clevermous | 307 | shl eax, 8 |
308 | ret |
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309 | endp |
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310 | |||
311 | align 4 |
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312 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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313 | locals |
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314 | cmd dd ? |
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315 | offset dd ? |
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316 | dd ? |
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317 | count dd ? |
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318 | buff dd ? |
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319 | db ? |
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320 | name dd ? |
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321 | endl |
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322 | |||
323 | xor eax, eax |
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324 | mov ebx, [file_name] |
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325 | mov ecx, [info] |
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326 | |||
327 | mov [cmd], 5 |
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328 | mov [offset], eax |
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329 | mov [offset+4], eax |
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330 | mov [count], eax |
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331 | mov [buff], ecx |
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332 | mov byte [buff+4], al |
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333 | mov [name], ebx |
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334 | |||
335 | mov eax, 70 |
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336 | lea ebx, [cmd] |
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8680 | rgimad | 337 | pushad |
338 | cld |
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339 | call protect_from_terminate |
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340 | call file_system_lfn |
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341 | call unprotect_from_terminate |
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342 | popad |
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2288 | clevermous | 343 | ret |
344 | endp |
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345 | |||
346 | align 4 |
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347 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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348 | bytes:dword |
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349 | locals |
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350 | cmd dd ? |
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351 | offset dd ? |
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352 | dd ? |
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353 | count dd ? |
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354 | buff dd ? |
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355 | db ? |
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356 | name dd ? |
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357 | endl |
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358 | |||
359 | xor eax, eax |
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360 | mov ebx, [file_name] |
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361 | mov ecx, [off] |
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362 | mov edx, [bytes] |
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363 | mov esi, [buffer] |
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364 | |||
365 | mov [cmd], eax |
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366 | mov [offset], ecx |
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367 | mov [offset+4], eax |
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368 | mov [count], edx |
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369 | mov [buff], esi |
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370 | mov byte [buff+4], al |
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371 | mov [name], ebx |
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372 | |||
373 | pushad |
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374 | lea ebx, [cmd] |
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3296 | clevermous | 375 | call file_system_lfn_protected |
2288 | clevermous | 376 | popad |
377 | ret |
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378 | endp |
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379 | |||
9034 | Boppan | 380 | align 4 |
381 | ; @brief Allocate kernel memory and loads the specified file |
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2288 | clevermous | 382 | ; |
9034 | Boppan | 383 | ; @param file_name Path to file |
2288 | clevermous | 384 | ; |
9034 | Boppan | 385 | ; @returns File image in kernel memory in `eax` and size of file in `ebx` |
2288 | clevermous | 386 | ; |
9034 | Boppan | 387 | ; @warning You must call kernel_free() to delete each file loaded by the |
388 | ; load_file() function |
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2288 | clevermous | 389 | proc load_file stdcall, file_name:dword |
390 | locals |
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391 | attr dd ? |
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392 | flags dd ? |
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393 | cr_time dd ? |
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394 | cr_date dd ? |
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395 | acc_time dd ? |
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396 | acc_date dd ? |
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397 | mod_time dd ? |
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398 | mod_date dd ? |
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399 | file_size dd ? |
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400 | |||
401 | file dd ? |
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402 | file2 dd ? |
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403 | endl |
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404 | |||
405 | push esi |
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406 | push edi |
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407 | |||
408 | lea eax, [attr] |
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409 | stdcall get_fileinfo, [file_name], eax |
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410 | test eax, eax |
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411 | jnz .fail |
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412 | |||
413 | mov eax, [file_size] |
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414 | cmp eax, 1024*1024*16 |
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415 | ja .fail |
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416 | |||
417 | stdcall kernel_alloc, [file_size] |
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418 | mov [file], eax |
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419 | test eax, eax |
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420 | jz .fail |
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421 | |||
422 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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423 | cmp ebx, [file_size] |
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424 | jne .cleanup |
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425 | |||
426 | mov eax, [file] |
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7122 | dunkaist | 427 | cmp dword [eax], 'KPCK' |
2288 | clevermous | 428 | jne .exit |
429 | mov ebx, [eax+4] |
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430 | mov [file_size], ebx |
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431 | stdcall kernel_alloc, ebx |
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432 | |||
433 | test eax, eax |
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434 | jz .cleanup |
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435 | |||
436 | mov [file2], eax |
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2486 | mario79 | 437 | |
2500 | mario79 | 438 | pushad |
2489 | mario79 | 439 | mov ecx, unpack_mutex |
440 | call mutex_lock |
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2500 | mario79 | 441 | popad |
2486 | mario79 | 442 | |
2288 | clevermous | 443 | stdcall unpack, [file], eax |
2486 | mario79 | 444 | |
2500 | mario79 | 445 | pushad |
446 | mov ecx, unpack_mutex |
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2489 | mario79 | 447 | call mutex_unlock |
2500 | mario79 | 448 | popad |
2486 | mario79 | 449 | |
2288 | clevermous | 450 | stdcall kernel_free, [file] |
451 | mov eax, [file2] |
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452 | mov ebx, [file_size] |
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453 | .exit: |
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454 | push eax |
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455 | lea edi, [eax+ebx] ;cleanup remain space |
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456 | mov ecx, 4096 ;from file end |
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457 | and ebx, 4095 |
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458 | jz @f |
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459 | sub ecx, ebx |
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460 | xor eax, eax |
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461 | cld |
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462 | rep stosb |
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463 | @@: |
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464 | mov ebx, [file_size] |
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465 | pop eax |
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466 | pop edi |
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467 | pop esi |
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468 | ret |
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469 | .cleanup: |
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470 | stdcall kernel_free, [file] |
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471 | .fail: |
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472 | xor eax, eax |
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473 | xor ebx, ebx |
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474 | pop edi |
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475 | pop esi |
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476 | ret |
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477 | endp |
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478 | |||
3786 | Serge | 479 | ; description |
480 | ; allocate user memory and loads the specified file |
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481 | ; |
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482 | ; param |
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483 | ; file_name= path to file |
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484 | ; |
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485 | ; retval |
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486 | ; eax= file image in user memory |
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487 | ; ebx= size of file |
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488 | ; |
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489 | ; warging |
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490 | ; You mast call kernel_free() to delete each file |
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491 | ; loaded by the load_file() function |
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492 | |||
493 | align 4 |
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494 | proc load_file_umode stdcall, file_name:dword |
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495 | locals |
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496 | attr dd ? |
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497 | flags dd ? |
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498 | cr_time dd ? |
||
499 | cr_date dd ? |
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500 | acc_time dd ? |
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501 | acc_date dd ? |
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502 | mod_time dd ? |
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503 | mod_date dd ? |
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504 | file_size dd ? |
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505 | |||
506 | km_file dd ? |
||
507 | um_file dd ? |
||
508 | endl |
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509 | |||
510 | push esi |
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511 | push edi |
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512 | push ebx |
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513 | |||
514 | lea eax, [attr] |
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515 | stdcall get_fileinfo, [file_name], eax ;find file and get info |
||
516 | test eax, eax |
||
517 | jnz .err_1 |
||
518 | |||
519 | mov eax, [file_size] |
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520 | cmp eax, 1024*1024*16 ;to be enough for anybody (c) |
||
521 | ja .err_1 |
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522 | ;it is very likely that the file is packed |
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523 | stdcall kernel_alloc, [file_size] ;with kpack, so allocate memory from kernel heap |
||
524 | mov [km_file], eax |
||
525 | test eax, eax |
||
526 | jz .err_1 |
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527 | |||
528 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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529 | cmp ebx, [file_size] |
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530 | |||
531 | jne .err_2 |
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532 | |||
533 | mov eax, [km_file] |
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7122 | dunkaist | 534 | cmp dword [eax], 'KPCK' ; check kpack signature |
3786 | Serge | 535 | jne .raw_file |
536 | |||
537 | mov ebx, [eax+4] ;get real size of file |
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538 | mov [file_size], ebx |
||
4237 | Serge | 539 | stdcall user_alloc, ebx ;and allocate space from user heap |
3786 | Serge | 540 | mov [um_file], eax |
541 | test eax, eax |
||
542 | jz .err_2 |
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543 | |||
4237 | Serge | 544 | mov edx, [file_size] ;preallocate page memory |
545 | shr eax, 10 |
||
9715 | Doczom | 546 | lea edi, [page_tabs + eax] |
4237 | Serge | 547 | add edx, 4095 |
548 | shr edx, 12 |
||
549 | @@: |
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550 | call alloc_page |
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551 | test eax, eax |
||
552 | jz .err_3 |
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553 | |||
5356 | serge | 554 | or eax, PG_UWR |
4237 | Serge | 555 | stosd |
556 | dec edx |
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557 | jnz @B |
||
558 | |||
3786 | Serge | 559 | pushad |
560 | mov ecx, unpack_mutex |
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561 | call mutex_lock |
||
562 | |||
563 | stdcall unpack, [km_file], [um_file] |
||
564 | |||
565 | mov ecx, unpack_mutex |
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566 | call mutex_unlock |
||
567 | popad |
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568 | |||
569 | stdcall kernel_free, [km_file] ;we don't need packed file anymore |
||
570 | .exit: |
||
4237 | Serge | 571 | |
572 | mov edi, [um_file] |
||
573 | mov esi, [um_file] |
||
574 | mov eax, [file_size] |
||
575 | mov edx, eax |
||
576 | |||
577 | add edi, eax ;cleanup remain space |
||
578 | mov ecx, 4096 ;from file end |
||
579 | and eax, 4095 |
||
580 | jz @f |
||
581 | sub ecx, eax |
||
582 | xor eax, eax |
||
583 | cld |
||
584 | rep stosb |
||
585 | @@: |
||
3786 | Serge | 586 | mov eax, [um_file] |
587 | |||
588 | pop ebx |
||
589 | pop edi |
||
590 | pop esi |
||
591 | ret |
||
592 | |||
593 | .raw_file: ; sometimes we load unpacked file |
||
594 | stdcall user_alloc, ebx ; allocate space from user heap |
||
595 | mov [um_file], eax |
||
596 | |||
597 | test eax, eax |
||
598 | jz .err_2 |
||
599 | |||
600 | shr eax, 10 ; and remap pages. |
||
601 | |||
602 | mov ecx, [file_size] |
||
603 | add ecx, 4095 |
||
604 | shr ecx, 12 |
||
605 | |||
606 | mov esi, [km_file] |
||
607 | shr esi, 10 |
||
608 | add esi, page_tabs |
||
609 | |||
610 | lea edi, [page_tabs+eax] |
||
611 | |||
612 | cld |
||
613 | @@: |
||
614 | lodsd |
||
615 | and eax, 0xFFFFF000 |
||
5356 | serge | 616 | or eax, PG_UWR |
3786 | Serge | 617 | stosd |
618 | loop @B |
||
619 | |||
620 | stdcall free_kernel_space, [km_file] ; release allocated kernel space |
||
621 | jmp .exit ; physical pages still in use |
||
4237 | Serge | 622 | .err_3: |
623 | stdcall user_free, [um_file] |
||
3786 | Serge | 624 | .err_2: |
625 | stdcall kernel_free, [km_file] |
||
626 | .err_1: |
||
627 | xor eax, eax |
||
628 | xor edx, edx |
||
629 | |||
630 | pop ebx |
||
631 | pop edi |
||
632 | pop esi |
||
633 | ret |
||
634 | endp |
||
635 | |||
636 | |||
2489 | mario79 | 637 | uglobal |
2288 | clevermous | 638 | align 4 |
2489 | mario79 | 639 | unpack_mutex MUTEX |
2486 | mario79 | 640 | endg |
641 | |||
642 | align 4 |
||
3761 | clevermous | 643 | proc get_proc_ex stdcall uses ebx esi, proc_name:dword, imports:dword |
644 | mov ebx, [imports] |
||
645 | test ebx, ebx |
||
646 | jz .end |
||
647 | xor esi, esi |
||
2288 | clevermous | 648 | .look_up: |
649 | |||
3761 | clevermous | 650 | mov eax, [ebx+32] |
9715 | Doczom | 651 | mov eax, [OS_BASE + eax + esi*4] |
3761 | clevermous | 652 | add eax, OS_BASE |
2288 | clevermous | 653 | stdcall strncmp, eax, [proc_name], 256 |
654 | test eax, eax |
||
655 | jz .ok |
||
656 | |||
3761 | clevermous | 657 | inc esi |
658 | cmp esi, [ebx+24] |
||
659 | jb .look_up |
||
2288 | clevermous | 660 | .end: |
661 | xor eax, eax |
||
662 | ret |
||
3761 | clevermous | 663 | .ok: |
664 | mov eax, [ebx+28] |
||
9715 | Doczom | 665 | mov eax, [OS_BASE + eax + esi*4] |
3761 | clevermous | 666 | add eax, OS_BASE |
667 | ret |
||
2288 | clevermous | 668 | endp |
669 | |||
670 | align 4 |
||
671 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
||
672 | sym_count:dword, strings:dword, imports:dword |
||
673 | locals |
||
674 | retval dd ? |
||
675 | endl |
||
676 | |||
677 | mov edi, [symbols] |
||
678 | mov [retval], 1 |
||
679 | .fix: |
||
9715 | Doczom | 680 | movzx ebx, [edi + COFF_SYM.SectionNumber] |
2288 | clevermous | 681 | test ebx, ebx |
682 | jnz .internal |
||
9715 | Doczom | 683 | mov eax, dword [edi + COFF_SYM.Name] |
2288 | clevermous | 684 | test eax, eax |
685 | jnz @F |
||
686 | |||
687 | mov edi, [edi+4] |
||
688 | add edi, [strings] |
||
689 | @@: |
||
690 | push edi |
||
691 | stdcall get_proc_ex, edi, [imports] |
||
692 | pop edi |
||
693 | |||
694 | xor ebx, ebx |
||
695 | test eax, eax |
||
696 | jnz @F |
||
697 | |||
5998 | veliant | 698 | ; disable debug msg |
699 | ;mov esi, msg_unresolved |
||
700 | ;call sys_msg_board_str |
||
701 | ;mov esi, edi |
||
702 | ;call sys_msg_board_str |
||
703 | ;mov esi, msg_CR |
||
704 | ;call sys_msg_board_str |
||
2288 | clevermous | 705 | |
706 | mov [retval], 0 |
||
707 | @@: |
||
708 | mov edi, [symbols] |
||
9715 | Doczom | 709 | mov [edi + COFF_SYM.Value], eax |
2288 | clevermous | 710 | jmp .next |
711 | .internal: |
||
712 | cmp bx, -1 |
||
713 | je .next |
||
714 | cmp bx, -2 |
||
715 | je .next |
||
716 | |||
717 | dec ebx |
||
718 | shl ebx, 3 |
||
9715 | Doczom | 719 | lea ebx, [ebx + ebx*4] |
2288 | clevermous | 720 | add ebx, [sec] |
721 | |||
9715 | Doczom | 722 | mov eax, [ebx + COFF_SECTION.VirtualAddress] |
723 | add [edi + COFF_SYM.Value], eax |
||
2288 | clevermous | 724 | .next: |
2384 | hidnplayr | 725 | add edi, sizeof.COFF_SYM |
2288 | clevermous | 726 | mov [symbols], edi |
727 | dec [sym_count] |
||
728 | jnz .fix |
||
729 | mov eax, [retval] |
||
730 | ret |
||
731 | endp |
||
732 | |||
733 | align 4 |
||
734 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
735 | delta:dword |
||
736 | locals |
||
737 | n_sec dd ? |
||
738 | endl |
||
739 | |||
740 | mov eax, [coff] |
||
9715 | Doczom | 741 | movzx ebx, [eax + COFF_HEADER.nSections] |
2288 | clevermous | 742 | mov [n_sec], ebx |
743 | lea esi, [eax+20] |
||
744 | .fix_sec: |
||
9715 | Doczom | 745 | mov edi, [esi + COFF_SECTION.PtrReloc] |
2288 | clevermous | 746 | add edi, [coff] |
747 | |||
9715 | Doczom | 748 | movzx ecx, [esi + COFF_SECTION.NumReloc] |
2288 | clevermous | 749 | test ecx, ecx |
750 | jz .next |
||
751 | .reloc_loop: |
||
9715 | Doczom | 752 | mov ebx, [edi + COFF_RELOC.SymIndex] |
2288 | clevermous | 753 | add ebx, ebx |
754 | lea ebx, [ebx+ebx*8] |
||
755 | add ebx, [sym] |
||
756 | |||
9715 | Doczom | 757 | mov edx, [ebx + COFF_SYM.Value] |
2288 | clevermous | 758 | |
9715 | Doczom | 759 | cmp [edi + COFF_RELOC.Type], 6 |
2288 | clevermous | 760 | je .dir_32 |
761 | |||
9715 | Doczom | 762 | cmp [edi + COFF_RELOC.Type], 20 |
2288 | clevermous | 763 | jne .next_reloc |
764 | .rel_32: |
||
9715 | Doczom | 765 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
766 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 767 | sub edx, eax |
768 | sub edx, 4 |
||
769 | jmp .fix |
||
770 | .dir_32: |
||
9715 | Doczom | 771 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
772 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 773 | .fix: |
774 | add eax, [delta] |
||
775 | add [eax], edx |
||
776 | .next_reloc: |
||
777 | add edi, 10 |
||
778 | dec ecx |
||
779 | jnz .reloc_loop |
||
780 | .next: |
||
2384 | hidnplayr | 781 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 782 | dec [n_sec] |
783 | jnz .fix_sec |
||
784 | .exit: |
||
785 | ret |
||
786 | endp |
||
787 | |||
788 | align 4 |
||
789 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
790 | delta:dword |
||
791 | locals |
||
792 | n_sec dd ? |
||
793 | endl |
||
794 | |||
795 | mov eax, [coff] |
||
9715 | Doczom | 796 | movzx ebx, [eax + COFF_HEADER.nSections] |
2288 | clevermous | 797 | mov [n_sec], ebx |
798 | lea esi, [eax+20] |
||
799 | mov edx, [delta] |
||
800 | .fix_sec: |
||
9715 | Doczom | 801 | mov edi, [esi + COFF_SECTION.PtrReloc] |
2288 | clevermous | 802 | add edi, [coff] |
803 | |||
9715 | Doczom | 804 | movzx ecx, [esi + COFF_SECTION.NumReloc] |
2288 | clevermous | 805 | test ecx, ecx |
806 | jz .next |
||
807 | .reloc_loop: |
||
9715 | Doczom | 808 | cmp [edi + COFF_RELOC.Type], 6 |
2288 | clevermous | 809 | jne .next_reloc |
810 | .dir_32: |
||
9715 | Doczom | 811 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
812 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
813 | add [eax + edx], edx |
||
2288 | clevermous | 814 | .next_reloc: |
815 | add edi, 10 |
||
816 | dec ecx |
||
817 | jnz .reloc_loop |
||
818 | .next: |
||
2384 | hidnplayr | 819 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 820 | dec [n_sec] |
821 | jnz .fix_sec |
||
822 | .exit: |
||
823 | ret |
||
824 | endp |
||
825 | |||
826 | ; in: edx -> COFF_SECTION struct |
||
827 | ; out: eax = alignment as mask for bits to drop |
||
828 | coff_get_align: |
||
829 | ; Rules: |
||
830 | ; - if alignment is not given, use default = 4K; |
||
831 | ; - if alignment is given and is no more than 4K, use it; |
||
832 | ; - if alignment is more than 4K, revert to 4K. |
||
833 | push ecx |
||
9715 | Doczom | 834 | mov cl, byte [edx + COFF_SECTION.Characteristics+2] |
2288 | clevermous | 835 | mov eax, 1 |
836 | shr cl, 4 |
||
837 | dec cl |
||
838 | js .default |
||
839 | cmp cl, 12 |
||
840 | jbe @f |
||
841 | .default: |
||
842 | mov cl, 12 |
||
843 | @@: |
||
844 | shl eax, cl |
||
845 | pop ecx |
||
846 | dec eax |
||
847 | ret |
||
848 | |||
849 | align 4 |
||
6792 | pathoswith | 850 | proc load_library stdcall, file_name:dword, encoding:dword |
6502 | pathoswith | 851 | locals |
852 | fullname dd ? |
||
853 | fileinfo rb 40 |
||
854 | coff dd ? |
||
855 | img_base dd ? |
||
856 | endl |
||
2288 | clevermous | 857 | |
858 | ; resolve file name |
||
6502 | pathoswith | 859 | stdcall kernel_alloc, maxPathLength |
860 | mov [fullname], eax |
||
6792 | pathoswith | 861 | mov edi, eax |
862 | mov esi, [file_name] |
||
863 | mov eax, [encoding] |
||
864 | push ebp |
||
865 | call getFullPath |
||
866 | pop ebp |
||
6502 | pathoswith | 867 | test eax, eax |
2288 | clevermous | 868 | jz .fail |
869 | ; scan for required DLL in list of already loaded for this process, |
||
870 | ; ignore timestamp |
||
3827 | clevermous | 871 | cli |
5130 | serge | 872 | mov esi, [current_process] |
6502 | pathoswith | 873 | mov edi, [fullname] |
9715 | Doczom | 874 | mov ebx, [esi + PROC.dlls_list_ptr] |
2288 | clevermous | 875 | test ebx, ebx |
876 | jz .not_in_process |
||
9715 | Doczom | 877 | mov esi, [ebx + HDLL.fd] |
2288 | clevermous | 878 | .scan_in_process: |
879 | cmp esi, ebx |
||
880 | jz .not_in_process |
||
9715 | Doczom | 881 | mov eax, [esi + HDLL.parent] |
2288 | clevermous | 882 | add eax, DLLDESCR.name |
883 | stdcall strncmp, eax, edi, -1 |
||
884 | test eax, eax |
||
885 | jnz .next_in_process |
||
886 | ; simple variant: load DLL which is already loaded in this process |
||
887 | ; just increment reference counters and return address of exports table |
||
9715 | Doczom | 888 | inc [esi + HDLL.refcount] |
889 | mov ecx, [esi + HDLL.parent] |
||
890 | inc [ecx + DLLDESCR.refcount] |
||
891 | mov eax, [ecx + DLLDESCR.exports] |
||
892 | sub eax, [ecx + DLLDESCR.defaultbase] |
||
893 | add eax, [esi + HDLL.base] |
||
3827 | clevermous | 894 | sti |
6502 | pathoswith | 895 | push eax |
896 | stdcall kernel_free, [fullname] |
||
897 | pop eax |
||
2288 | clevermous | 898 | ret |
6502 | pathoswith | 899 | |
2288 | clevermous | 900 | .next_in_process: |
9715 | Doczom | 901 | mov esi, [esi + HDLL.fd] |
2288 | clevermous | 902 | jmp .scan_in_process |
6502 | pathoswith | 903 | |
2288 | clevermous | 904 | .not_in_process: |
905 | ; scan in full list, compare timestamp |
||
3827 | clevermous | 906 | sti |
2288 | clevermous | 907 | lea eax, [fileinfo] |
908 | stdcall get_fileinfo, edi, eax |
||
909 | test eax, eax |
||
910 | jnz .fail |
||
3827 | clevermous | 911 | cli |
2288 | clevermous | 912 | mov esi, [dll_list.fd] |
913 | .scan_for_dlls: |
||
914 | cmp esi, dll_list |
||
915 | jz .load_new |
||
9715 | Doczom | 916 | lea eax, [esi + DLLDESCR.name] |
2288 | clevermous | 917 | stdcall strncmp, eax, edi, -1 |
918 | test eax, eax |
||
919 | jnz .continue_scan |
||
920 | .test_prev_dll: |
||
921 | mov eax, dword [fileinfo+24]; last modified time |
||
922 | mov edx, dword [fileinfo+28]; last modified date |
||
9715 | Doczom | 923 | cmp dword [esi + DLLDESCR.timestamp], eax |
2288 | clevermous | 924 | jnz .continue_scan |
9715 | Doczom | 925 | cmp dword [esi + DLLDESCR.timestamp+4], edx |
2288 | clevermous | 926 | jz .dll_already_loaded |
927 | .continue_scan: |
||
9715 | Doczom | 928 | mov esi, [esi + DLLDESCR.fd] |
2288 | clevermous | 929 | jmp .scan_for_dlls |
930 | |||
931 | ; new DLL |
||
932 | .load_new: |
||
3827 | clevermous | 933 | sti |
2288 | clevermous | 934 | ; load file |
935 | stdcall load_file, edi |
||
936 | test eax, eax |
||
937 | jz .fail |
||
938 | mov [coff], eax |
||
939 | mov dword [fileinfo+32], ebx |
||
940 | |||
941 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
||
942 | mov esi, edi |
||
943 | mov ecx, -1 |
||
944 | xor eax, eax |
||
945 | repnz scasb |
||
946 | not ecx |
||
9715 | Doczom | 947 | lea eax, [ecx + sizeof.DLLDESCR] |
2288 | clevermous | 948 | push ecx |
949 | call malloc |
||
950 | pop ecx |
||
951 | test eax, eax |
||
952 | jz .fail_and_free_coff |
||
953 | ; save timestamp |
||
9715 | Doczom | 954 | lea edi, [eax + DLLDESCR.name] |
2288 | clevermous | 955 | rep movsb |
956 | mov esi, eax |
||
957 | mov eax, dword [fileinfo+24] |
||
9715 | Doczom | 958 | mov dword [esi + DLLDESCR.timestamp], eax |
2288 | clevermous | 959 | mov eax, dword [fileinfo+28] |
9715 | Doczom | 960 | mov dword [esi + DLLDESCR.timestamp+4], eax |
2288 | clevermous | 961 | |
962 | ; calculate size of loaded DLL |
||
963 | mov edx, [coff] |
||
9715 | Doczom | 964 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 965 | xor ebx, ebx |
966 | |||
967 | add edx, 20 |
||
968 | @@: |
||
969 | call coff_get_align |
||
970 | add ebx, eax |
||
971 | not eax |
||
972 | and ebx, eax |
||
9715 | Doczom | 973 | add ebx, [edx + COFF_SECTION.SizeOfRawData] |
2384 | hidnplayr | 974 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 975 | dec ecx |
976 | jnz @B |
||
977 | ; it must be nonzero and not too big |
||
9715 | Doczom | 978 | mov [esi + DLLDESCR.size], ebx |
2288 | clevermous | 979 | test ebx, ebx |
980 | jz .fail_and_free_dll |
||
981 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
982 | ja .fail_and_free_dll |
||
983 | ; allocate memory for kernel-side image |
||
984 | stdcall kernel_alloc, ebx |
||
985 | test eax, eax |
||
986 | jz .fail_and_free_dll |
||
9715 | Doczom | 987 | mov [esi + DLLDESCR.data], eax |
2288 | clevermous | 988 | ; calculate preferred base address |
989 | add ebx, 0x1FFF |
||
990 | and ebx, not 0xFFF |
||
991 | mov ecx, [dll_cur_addr] |
||
9715 | Doczom | 992 | lea edx, [ecx + ebx] |
2288 | clevermous | 993 | cmp edx, MAX_DEFAULT_DLL_ADDR |
994 | jb @f |
||
995 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
9715 | Doczom | 996 | lea edx, [ecx + ebx] |
2288 | clevermous | 997 | @@: |
9715 | Doczom | 998 | mov [esi + DLLDESCR.defaultbase], ecx |
2288 | clevermous | 999 | mov [dll_cur_addr], edx |
1000 | |||
1001 | ; copy sections and set correct values for VirtualAddress'es in headers |
||
1002 | push esi |
||
1003 | mov edx, [coff] |
||
9715 | Doczom | 1004 | movzx ebx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1005 | mov edi, eax |
1006 | add edx, 20 |
||
1007 | cld |
||
1008 | @@: |
||
1009 | call coff_get_align |
||
1010 | add ecx, eax |
||
1011 | add edi, eax |
||
1012 | not eax |
||
1013 | and ecx, eax |
||
1014 | and edi, eax |
||
9715 | Doczom | 1015 | mov [edx + COFF_SECTION.VirtualAddress], ecx |
1016 | add ecx, [edx + COFF_SECTION.SizeOfRawData] |
||
1017 | mov esi, [edx + COFF_SECTION.PtrRawData] |
||
2288 | clevermous | 1018 | push ecx |
9715 | Doczom | 1019 | mov ecx, [edx + COFF_SECTION.SizeOfRawData] |
2288 | clevermous | 1020 | test esi, esi |
1021 | jnz .copy |
||
1022 | xor eax, eax |
||
1023 | rep stosb |
||
1024 | jmp .next |
||
1025 | .copy: |
||
1026 | add esi, [coff] |
||
1027 | rep movsb |
||
1028 | .next: |
||
1029 | pop ecx |
||
2384 | hidnplayr | 1030 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1031 | dec ebx |
1032 | jnz @B |
||
1033 | pop esi |
||
1034 | |||
1035 | ; save some additional data from COFF file |
||
1036 | ; later we will use COFF header, headers for sections and symbol table |
||
1037 | ; and also relocations table for all sections |
||
1038 | mov edx, [coff] |
||
9715 | Doczom | 1039 | mov ebx, [edx + COFF_HEADER.pSymTable] |
2288 | clevermous | 1040 | mov edi, dword [fileinfo+32] |
1041 | sub edi, ebx |
||
1042 | jc .fail_and_free_data |
||
9715 | Doczom | 1043 | mov [esi + DLLDESCR.symbols_lim], edi |
2288 | clevermous | 1044 | add ebx, edx |
9715 | Doczom | 1045 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1046 | lea ecx, [ecx*5] |
9715 | Doczom | 1047 | lea edi, [edi + ecx*8+20] |
2288 | clevermous | 1048 | add edx, 20 |
1049 | @@: |
||
9715 | Doczom | 1050 | movzx eax, [edx + COFF_SECTION.NumReloc] |
2288 | clevermous | 1051 | lea eax, [eax*5] |
9715 | Doczom | 1052 | lea edi, [edi + eax*2] |
2384 | hidnplayr | 1053 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1054 | sub ecx, 5 |
1055 | jnz @b |
||
1056 | stdcall kernel_alloc, edi |
||
1057 | test eax, eax |
||
1058 | jz .fail_and_free_data |
||
1059 | mov edx, [coff] |
||
9715 | Doczom | 1060 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1061 | lea ecx, [ecx*5] |
1062 | lea ecx, [ecx*2+5] |
||
9715 | Doczom | 1063 | mov [esi + DLLDESCR.coff_hdr], eax |
2288 | clevermous | 1064 | push esi |
1065 | mov esi, edx |
||
1066 | mov edi, eax |
||
1067 | rep movsd |
||
1068 | pop esi |
||
9715 | Doczom | 1069 | mov [esi + DLLDESCR.symbols_ptr], edi |
2288 | clevermous | 1070 | push esi |
2384 | hidnplayr | 1071 | mov ecx, [edx+COFF_HEADER.nSymbols] |
9715 | Doczom | 1072 | mov [esi + DLLDESCR.symbols_num], ecx |
1073 | mov ecx, [esi + DLLDESCR.symbols_lim] |
||
2288 | clevermous | 1074 | mov esi, ebx |
1075 | rep movsb |
||
1076 | pop esi |
||
9715 | Doczom | 1077 | mov ebx, [esi + DLLDESCR.coff_hdr] |
2288 | clevermous | 1078 | push esi |
9715 | Doczom | 1079 | movzx eax, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1080 | lea edx, [ebx+20] |
1081 | @@: |
||
9715 | Doczom | 1082 | movzx ecx, [edx + COFF_SECTION.NumReloc] |
2288 | clevermous | 1083 | lea ecx, [ecx*5] |
9715 | Doczom | 1084 | mov esi, [edx + COFF_SECTION.PtrReloc] |
1085 | mov [edx + COFF_SECTION.PtrReloc], edi |
||
1086 | sub [edx + COFF_SECTION.PtrReloc], ebx |
||
2288 | clevermous | 1087 | add esi, [coff] |
1088 | shr ecx, 1 |
||
1089 | rep movsd |
||
1090 | adc ecx, ecx |
||
1091 | rep movsw |
||
2384 | hidnplayr | 1092 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1093 | dec eax |
1094 | jnz @b |
||
1095 | pop esi |
||
1096 | |||
1097 | ; fixup symbols |
||
1098 | mov edx, ebx |
||
9715 | Doczom | 1099 | mov eax, [ebx + COFF_HEADER.nSymbols] |
2288 | clevermous | 1100 | add edx, 20 |
9715 | Doczom | 1101 | mov ecx, [esi + DLLDESCR.symbols_num] |
2288 | clevermous | 1102 | lea ecx, [ecx*9] |
1103 | add ecx, ecx |
||
9715 | Doczom | 1104 | add ecx, [esi + DLLDESCR.symbols_ptr] |
2288 | clevermous | 1105 | |
9715 | Doczom | 1106 | stdcall fix_coff_symbols, edx, [esi + DLLDESCR.symbols_ptr], eax, \ |
2288 | clevermous | 1107 | ecx, 0 |
1108 | ; test eax, eax |
||
1109 | ; jnz @F |
||
1110 | ; |
||
1111 | ;@@: |
||
1112 | |||
9715 | Doczom | 1113 | stdcall get_coff_sym, [esi + DLLDESCR.symbols_ptr], [ebx + COFF_HEADER.nSymbols], szEXPORTS |
2288 | clevermous | 1114 | test eax, eax |
1115 | jnz @F |
||
1116 | |||
9715 | Doczom | 1117 | stdcall get_coff_sym, [esi + DLLDESCR.symbols_ptr], [ebx + COFF_HEADER.nSymbols], sz_EXPORTS |
2288 | clevermous | 1118 | @@: |
9715 | Doczom | 1119 | mov [esi + DLLDESCR.exports], eax |
2288 | clevermous | 1120 | |
1121 | ; fix relocs in the hidden copy in kernel memory to default address |
||
1122 | ; it is first fix; usually this will be enough, but second fix |
||
1123 | ; can be necessary if real load address will not equal assumption |
||
9715 | Doczom | 1124 | mov eax, [esi + DLLDESCR.data] |
1125 | sub eax, [esi + DLLDESCR.defaultbase] |
||
1126 | stdcall fix_coff_relocs, ebx, [esi + DLLDESCR.symbols_ptr], eax |
||
2288 | clevermous | 1127 | |
1128 | stdcall kernel_free, [coff] |
||
1129 | |||
3827 | clevermous | 1130 | cli |
1131 | ; initialize DLLDESCR struct |
||
9715 | Doczom | 1132 | and dword [esi + DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
1133 | mov [esi + DLLDESCR.fd], dll_list |
||
3827 | clevermous | 1134 | mov eax, [dll_list.bk] |
1135 | mov [dll_list.bk], esi |
||
9715 | Doczom | 1136 | mov [esi + DLLDESCR.bk], eax |
1137 | mov [eax + DLLDESCR.fd], esi |
||
2288 | clevermous | 1138 | .dll_already_loaded: |
6502 | pathoswith | 1139 | stdcall kernel_free, [fullname] |
9715 | Doczom | 1140 | inc [esi + DLLDESCR.refcount] |
2288 | clevermous | 1141 | push esi |
1142 | call init_heap |
||
1143 | pop esi |
||
9715 | Doczom | 1144 | mov edi, [esi + DLLDESCR.size] |
1145 | stdcall user_alloc_at, [esi + DLLDESCR.defaultbase], edi |
||
2288 | clevermous | 1146 | test eax, eax |
1147 | jnz @f |
||
1148 | stdcall user_alloc, edi |
||
1149 | test eax, eax |
||
1150 | jz .fail_and_dereference |
||
1151 | @@: |
||
1152 | mov [img_base], eax |
||
2384 | hidnplayr | 1153 | mov eax, sizeof.HDLL |
2288 | clevermous | 1154 | call malloc |
1155 | test eax, eax |
||
1156 | jz .fail_and_free_user |
||
8869 | rgimad | 1157 | mov ebx, [current_slot_idx] |
9692 | Doczom | 1158 | shl ebx, BSF sizeof.APPDATA |
1159 | mov edx, [SLOT_BASE + ebx + APPDATA.tid] |
||
9715 | Doczom | 1160 | mov [eax + HDLL.pid], edx |
2288 | clevermous | 1161 | push eax |
1162 | call init_dlls_in_thread |
||
1163 | pop ebx |
||
1164 | test eax, eax |
||
1165 | jz .fail_and_free_user |
||
9715 | Doczom | 1166 | mov edx, [eax + HDLL.fd] |
1167 | mov [ebx + HDLL.fd], edx |
||
1168 | mov [ebx + HDLL.bk], eax |
||
1169 | mov [eax + HDLL.fd], ebx |
||
1170 | mov [edx + HDLL.bk], ebx |
||
2288 | clevermous | 1171 | mov eax, ebx |
1172 | mov ebx, [img_base] |
||
9715 | Doczom | 1173 | mov [eax + HDLL.base], ebx |
1174 | mov [eax + HDLL.size], edi |
||
1175 | mov [eax + HDLL.refcount], 1 |
||
1176 | mov [eax + HDLL.parent], esi |
||
2288 | clevermous | 1177 | mov edx, ebx |
1178 | shr edx, 12 |
||
9715 | Doczom | 1179 | or dword [page_tabs + (edx-1)*4], MEM_BLOCK_DONT_FREE |
2288 | clevermous | 1180 | ; copy entries of page table from kernel-side image to usermode |
1181 | ; use copy-on-write for user-mode image, so map as readonly |
||
1182 | xor edi, edi |
||
9715 | Doczom | 1183 | mov ecx, [esi + DLLDESCR.data] |
2288 | clevermous | 1184 | shr ecx, 12 |
1185 | .map_pages_loop: |
||
9715 | Doczom | 1186 | mov eax, [page_tabs + ecx*4] |
2288 | clevermous | 1187 | and eax, not 0xFFF |
5356 | serge | 1188 | or al, PG_UR |
9715 | Doczom | 1189 | xchg eax, [page_tabs + edx*4] |
2288 | clevermous | 1190 | test al, 1 |
1191 | jz @f |
||
1192 | call free_page |
||
1193 | @@: |
||
1194 | invlpg [ebx+edi] |
||
1195 | inc ecx |
||
1196 | inc edx |
||
1197 | add edi, 0x1000 |
||
9715 | Doczom | 1198 | cmp edi, [esi + DLLDESCR.size] |
2288 | clevermous | 1199 | jb .map_pages_loop |
1200 | |||
1201 | ; if real user-mode base is not equal to preferred base, relocate image |
||
9715 | Doczom | 1202 | sub ebx, [esi + DLLDESCR.defaultbase] |
2288 | clevermous | 1203 | jz @f |
9715 | Doczom | 1204 | stdcall rebase_coff, [esi + DLLDESCR.coff_hdr], [esi + DLLDESCR.symbols_ptr], ebx |
2288 | clevermous | 1205 | @@: |
1206 | |||
9715 | Doczom | 1207 | mov eax, [esi + DLLDESCR.exports] |
1208 | sub eax, [esi + DLLDESCR.defaultbase] |
||
2288 | clevermous | 1209 | add eax, [img_base] |
3827 | clevermous | 1210 | sti |
2288 | clevermous | 1211 | ret |
6502 | pathoswith | 1212 | |
2288 | clevermous | 1213 | .fail_and_free_data: |
9715 | Doczom | 1214 | stdcall kernel_free, [esi + DLLDESCR.data] |
2288 | clevermous | 1215 | .fail_and_free_dll: |
1216 | mov eax, esi |
||
1217 | call free |
||
1218 | .fail_and_free_coff: |
||
1219 | stdcall kernel_free, [coff] |
||
1220 | .fail: |
||
6502 | pathoswith | 1221 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1222 | xor eax, eax |
1223 | ret |
||
6502 | pathoswith | 1224 | |
2288 | clevermous | 1225 | .fail_and_free_user: |
1226 | stdcall user_free, [img_base] |
||
1227 | .fail_and_dereference: |
||
1228 | mov eax, 1 ; delete 1 reference |
||
1229 | call dereference_dll |
||
3827 | clevermous | 1230 | sti |
2288 | clevermous | 1231 | xor eax, eax |
1232 | ret |
||
1233 | endp |
||
1234 | |||
1235 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
||
1236 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1237 | ; kept in sync for all threads of one process. |
||
1238 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1239 | ; NULL if memory allocation failed |
||
1240 | init_dlls_in_thread: |
||
5130 | serge | 1241 | mov ebx, [current_process] |
9715 | Doczom | 1242 | mov eax, [ebx + PROC.dlls_list_ptr] |
2288 | clevermous | 1243 | test eax, eax |
1244 | jnz .ret |
||
5130 | serge | 1245 | |
2288 | clevermous | 1246 | mov eax, 8 |
5130 | serge | 1247 | call malloc ; FIXME |
2288 | clevermous | 1248 | test eax, eax |
1249 | jz .ret |
||
5130 | serge | 1250 | |
2288 | clevermous | 1251 | mov [eax], eax |
1252 | mov [eax+4], eax |
||
5130 | serge | 1253 | |
1254 | mov ebx, [current_process] |
||
9715 | Doczom | 1255 | mov [ebx + PROC.dlls_list_ptr], eax |
2288 | clevermous | 1256 | .ret: |
1257 | ret |
||
1258 | |||
1259 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
||
1260 | dereference_dll: |
||
9715 | Doczom | 1261 | sub [esi + DLLDESCR.refcount], eax |
2288 | clevermous | 1262 | jnz .ret |
9715 | Doczom | 1263 | mov eax, [esi + DLLDESCR.fd] |
1264 | mov edx, [esi + DLLDESCR.bk] |
||
1265 | mov [eax + DLLDESCR.bk], edx |
||
1266 | mov [edx + DLLDESCR.fd], eax |
||
1267 | stdcall kernel_free, [esi + DLLDESCR.coff_hdr] |
||
1268 | stdcall kernel_free, [esi + DLLDESCR.data] |
||
2288 | clevermous | 1269 | mov eax, esi |
1270 | call free |
||
1271 | .ret: |
||
1272 | ret |
||
1273 | |||
1274 | destroy_hdll: |
||
1275 | push ebx ecx esi edi |
||
9715 | Doczom | 1276 | mov ebx, [eax + HDLL.base] |
1277 | mov esi, [eax + HDLL.parent] |
||
1278 | mov edx, [esi + DLLDESCR.size] |
||
5130 | serge | 1279 | |
2288 | clevermous | 1280 | push eax |
9715 | Doczom | 1281 | mov esi, [eax + HDLL.parent] |
1282 | mov eax, [eax + HDLL.refcount] |
||
2288 | clevermous | 1283 | call dereference_dll |
1284 | pop eax |
||
9715 | Doczom | 1285 | mov edx, [eax + HDLL.bk] |
1286 | mov ebx, [eax + HDLL.fd] |
||
1287 | mov [ebx + HDLL.bk], edx |
||
1288 | mov [edx + HDLL.fd], ebx |
||
2288 | clevermous | 1289 | call free |
1290 | pop edi esi ecx ebx |
||
1291 | ret |
||
1292 | |||
1293 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
||
1294 | destroy_all_hdlls: |
||
1295 | test esi, esi |
||
1296 | jz .ret |
||
1297 | .loop: |
||
9715 | Doczom | 1298 | mov eax, [esi + HDLL.fd] |
2288 | clevermous | 1299 | cmp eax, esi |
1300 | jz free |
||
1301 | call destroy_hdll |
||
1302 | jmp .loop |
||
1303 | .ret: |
||
1304 | ret |
||
1305 | |||
1306 | ; param |
||
1307 | ; eax= size |
||
1308 | ; ebx= pid |
||
1309 | |||
1310 | align 4 |
||
1311 | create_kernel_object: |
||
1312 | |||
1313 | push ebx |
||
1314 | call malloc |
||
1315 | pop ebx |
||
1316 | test eax, eax |
||
1317 | jz .fail |
||
1318 | |||
1319 | mov ecx, [current_slot] |
||
1320 | add ecx, APP_OBJ_OFFSET |
||
1321 | |||
1322 | pushfd |
||
1323 | cli |
||
9715 | Doczom | 1324 | mov edx, [ecx + APPOBJ.fd] |
1325 | mov [eax + APPOBJ.fd], edx |
||
1326 | mov [eax + APPOBJ.bk], ecx |
||
1327 | mov [eax + APPOBJ.pid], ebx |
||
2288 | clevermous | 1328 | |
9715 | Doczom | 1329 | mov [ecx + APPOBJ.fd], eax |
1330 | mov [edx + APPOBJ.bk], eax |
||
2288 | clevermous | 1331 | popfd |
1332 | .fail: |
||
1333 | ret |
||
1334 | |||
1335 | ; param |
||
1336 | ; eax= object |
||
1337 | |||
1338 | align 4 |
||
1339 | destroy_kernel_object: |
||
1340 | |||
1341 | pushfd |
||
1342 | cli |
||
9715 | Doczom | 1343 | mov ebx, [eax + APPOBJ.fd] |
1344 | mov ecx, [eax + APPOBJ.bk] |
||
1345 | mov [ebx + APPOBJ.bk], ecx |
||
1346 | mov [ecx + APPOBJ.fd], ebx |
||
2288 | clevermous | 1347 | popfd |
1348 | |||
1349 | xor edx, edx ;clear common header |
||
1350 | mov [eax], edx |
||
1351 | mov [eax+4], edx |
||
1352 | mov [eax+8], edx |
||
1353 | mov [eax+12], edx |
||
1354 | mov [eax+16], edx |
||
1355 | |||
1356 | call free ;release object memory |
||
1357 | ret |
||
5595 | serge | 1358 | |
6926 | serge | 1359 | |
1360 | ;void* __fastcall create_object(size_t size) |
||
5595 | serge | 1361 | ; param |
1362 | ; ecx= size |
||
1363 | |||
1364 | align 4 |
||
1365 | create_object: |
||
1366 | |||
1367 | push esi |
||
1368 | push edi |
||
1369 | pushfd |
||
1370 | cli |
||
1371 | |||
1372 | mov esi, [current_process] |
||
9715 | Doczom | 1373 | mov eax, [esi + PROC.ht_free] |
1374 | mov edi, [esi + PROC.ht_next] |
||
5595 | serge | 1375 | dec eax |
1376 | js .err0 |
||
1377 | |||
9715 | Doczom | 1378 | mov [esi + PROC.ht_free], eax |
1379 | mov eax, [esi + PROC.htab + edi*4] |
||
1380 | mov [esi + PROC.ht_next], eax |
||
5595 | serge | 1381 | popfd |
1382 | |||
1383 | mov eax, ecx |
||
1384 | call malloc |
||
1385 | test eax, eax |
||
1386 | jz .err1 |
||
1387 | |||
9715 | Doczom | 1388 | mov [eax + FUTEX.handle], edi |
1389 | mov [esi + PROC.htab+edi*4], eax |
||
5595 | serge | 1390 | pop edi |
1391 | pop esi |
||
1392 | ret |
||
1393 | |||
1394 | .err1: |
||
1395 | pushfd |
||
1396 | cli |
||
1397 | |||
9715 | Doczom | 1398 | mov eax, [esi + PROC.ht_next] |
1399 | mov [esi + PROC.htab+edi*4], eax |
||
1400 | mov [esi + PROC.ht_next], edi |
||
1401 | inc [esi + PROC.ht_free] |
||
5595 | serge | 1402 | .err0: |
1403 | popfd |
||
1404 | pop edi |
||
1405 | pop esi |
||
1406 | xor eax, eax |
||
1407 | ret |
||
1408 | |||
6926 | serge | 1409 | |
1410 | ;int __fastcall destroy_object(struct object *obj) |
||
1411 | |||
1412 | align 4 |
||
1413 | destroy_object: |
||
1414 | push esi |
||
1415 | mov esi, [current_process] |
||
9715 | Doczom | 1416 | mov edx, [ecx + FUTEX.handle] |
6926 | serge | 1417 | |
1418 | pushfd |
||
1419 | cli |
||
1420 | |||
9715 | Doczom | 1421 | mov eax, [esi + PROC.ht_next] |
1422 | mov [esi + PROC.htab + edx*4], eax |
||
1423 | mov [esi + PROC.ht_next], edx |
||
1424 | inc [esi + PROC.ht_free] |
||
6926 | serge | 1425 | |
1426 | popfd |
||
1427 | pop esi |
||
1428 | |||
1429 | mov eax, ecx |
||
1430 | call free |
||
1431 | xor eax, eax |
||
1432 | ret |
||
1433 | .fail: |
||
1434 | popfd |
||
1435 | pop esi |
||
1436 | mov eax, -1 |
||
1437 | ret |
||
1438 |