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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: 9976 $ |
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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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9872 | Doczom | 165 | ;jecxz .nothing |
3520 | clevermous | 166 | push sizeof.SRV |
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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9823 | dunkaist | 290 | stdcall strncmp, [pSym], [sz_sym], sizeof.COFF_SYM.Name |
2288 | clevermous | 291 | test eax, eax |
292 | jz .ok |
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9823 | dunkaist | 293 | add [pSym], sizeof.COFF_SYM |
2288 | clevermous | 294 | dec [count] |
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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9823 | dunkaist | 300 | mov eax, [eax+COFF_SYM.Value] |
2288 | clevermous | 301 | ret |
302 | endp |
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303 | |||
304 | |||
305 | align 4 |
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306 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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307 | locals |
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308 | cmd dd ? |
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309 | offset dd ? |
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310 | dd ? |
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311 | count dd ? |
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312 | buff dd ? |
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313 | db ? |
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314 | name dd ? |
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315 | endl |
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316 | |||
317 | xor eax, eax |
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318 | mov ebx, [file_name] |
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319 | mov ecx, [info] |
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320 | |||
321 | mov [cmd], 5 |
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322 | mov [offset], eax |
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323 | mov [offset+4], eax |
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324 | mov [count], eax |
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325 | mov [buff], ecx |
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326 | mov byte [buff+4], al |
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327 | mov [name], ebx |
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328 | |||
329 | mov eax, 70 |
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330 | lea ebx, [cmd] |
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8680 | rgimad | 331 | pushad |
332 | cld |
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333 | call protect_from_terminate |
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334 | call file_system_lfn |
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335 | call unprotect_from_terminate |
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336 | popad |
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2288 | clevermous | 337 | ret |
338 | endp |
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339 | |||
340 | align 4 |
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341 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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342 | bytes:dword |
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343 | locals |
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344 | cmd dd ? |
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345 | offset dd ? |
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346 | dd ? |
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347 | count dd ? |
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348 | buff dd ? |
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349 | db ? |
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350 | name dd ? |
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351 | endl |
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352 | |||
353 | xor eax, eax |
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354 | mov ebx, [file_name] |
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355 | mov ecx, [off] |
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356 | mov edx, [bytes] |
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357 | mov esi, [buffer] |
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358 | |||
359 | mov [cmd], eax |
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360 | mov [offset], ecx |
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361 | mov [offset+4], eax |
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362 | mov [count], edx |
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363 | mov [buff], esi |
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364 | mov byte [buff+4], al |
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365 | mov [name], ebx |
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366 | |||
367 | pushad |
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368 | lea ebx, [cmd] |
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3296 | clevermous | 369 | call file_system_lfn_protected |
2288 | clevermous | 370 | popad |
371 | ret |
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372 | endp |
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373 | |||
9034 | Boppan | 374 | align 4 |
375 | ; @brief Allocate kernel memory and loads the specified file |
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2288 | clevermous | 376 | ; |
9034 | Boppan | 377 | ; @param file_name Path to file |
2288 | clevermous | 378 | ; |
9034 | Boppan | 379 | ; @returns File image in kernel memory in `eax` and size of file in `ebx` |
2288 | clevermous | 380 | ; |
9034 | Boppan | 381 | ; @warning You must call kernel_free() to delete each file loaded by the |
382 | ; load_file() function |
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2288 | clevermous | 383 | proc load_file stdcall, file_name:dword |
384 | locals |
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385 | attr dd ? |
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386 | flags dd ? |
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387 | cr_time dd ? |
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388 | cr_date dd ? |
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389 | acc_time dd ? |
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390 | acc_date dd ? |
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391 | mod_time dd ? |
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392 | mod_date dd ? |
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393 | file_size dd ? |
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394 | |||
395 | file dd ? |
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396 | file2 dd ? |
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397 | endl |
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398 | |||
399 | push esi |
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400 | push edi |
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401 | |||
402 | lea eax, [attr] |
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403 | stdcall get_fileinfo, [file_name], eax |
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404 | test eax, eax |
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405 | jnz .fail |
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406 | |||
407 | mov eax, [file_size] |
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408 | cmp eax, 1024*1024*16 |
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409 | ja .fail |
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410 | |||
411 | stdcall kernel_alloc, [file_size] |
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412 | mov [file], eax |
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413 | test eax, eax |
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414 | jz .fail |
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415 | |||
416 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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417 | cmp ebx, [file_size] |
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418 | jne .cleanup |
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419 | |||
420 | mov eax, [file] |
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7122 | dunkaist | 421 | cmp dword [eax], 'KPCK' |
2288 | clevermous | 422 | jne .exit |
423 | mov ebx, [eax+4] |
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424 | mov [file_size], ebx |
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425 | stdcall kernel_alloc, ebx |
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426 | |||
427 | test eax, eax |
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428 | jz .cleanup |
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429 | |||
430 | mov [file2], eax |
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2486 | mario79 | 431 | |
2500 | mario79 | 432 | pushad |
2489 | mario79 | 433 | mov ecx, unpack_mutex |
434 | call mutex_lock |
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2500 | mario79 | 435 | popad |
2486 | mario79 | 436 | |
2288 | clevermous | 437 | stdcall unpack, [file], eax |
2486 | mario79 | 438 | |
2500 | mario79 | 439 | pushad |
440 | mov ecx, unpack_mutex |
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2489 | mario79 | 441 | call mutex_unlock |
2500 | mario79 | 442 | popad |
2486 | mario79 | 443 | |
2288 | clevermous | 444 | stdcall kernel_free, [file] |
445 | mov eax, [file2] |
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446 | mov ebx, [file_size] |
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447 | .exit: |
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448 | push eax |
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449 | lea edi, [eax+ebx] ;cleanup remain space |
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450 | mov ecx, 4096 ;from file end |
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451 | and ebx, 4095 |
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452 | jz @f |
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453 | sub ecx, ebx |
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454 | xor eax, eax |
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455 | cld |
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456 | rep stosb |
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457 | @@: |
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458 | mov ebx, [file_size] |
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459 | pop eax |
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460 | pop edi |
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461 | pop esi |
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462 | ret |
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463 | .cleanup: |
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464 | stdcall kernel_free, [file] |
||
465 | .fail: |
||
466 | xor eax, eax |
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467 | xor ebx, ebx |
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468 | pop edi |
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469 | pop esi |
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470 | ret |
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471 | endp |
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472 | |||
3786 | Serge | 473 | ; description |
474 | ; allocate user memory and loads the specified file |
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475 | ; |
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476 | ; param |
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477 | ; file_name= path to file |
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478 | ; |
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479 | ; retval |
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480 | ; eax= file image in user memory |
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481 | ; ebx= size of file |
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482 | ; |
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483 | ; warging |
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484 | ; You mast call kernel_free() to delete each file |
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485 | ; loaded by the load_file() function |
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486 | |||
487 | align 4 |
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488 | proc load_file_umode stdcall, file_name:dword |
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489 | locals |
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490 | attr dd ? |
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491 | flags dd ? |
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492 | cr_time dd ? |
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493 | cr_date dd ? |
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494 | acc_time dd ? |
||
495 | acc_date dd ? |
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496 | mod_time dd ? |
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497 | mod_date dd ? |
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498 | file_size dd ? |
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499 | |||
500 | km_file dd ? |
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501 | um_file dd ? |
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502 | endl |
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503 | |||
504 | push esi |
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505 | push edi |
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506 | push ebx |
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507 | |||
508 | lea eax, [attr] |
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509 | stdcall get_fileinfo, [file_name], eax ;find file and get info |
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510 | test eax, eax |
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511 | jnz .err_1 |
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512 | |||
513 | mov eax, [file_size] |
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9976 | Jurgen | 514 | cmp eax, 1024*1024*1024 ;to be enough for anybody 1Gbt(c) |
3786 | Serge | 515 | ja .err_1 |
516 | ;it is very likely that the file is packed |
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517 | stdcall kernel_alloc, [file_size] ;with kpack, so allocate memory from kernel heap |
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518 | mov [km_file], eax |
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519 | test eax, eax |
||
520 | jz .err_1 |
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521 | |||
522 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
||
523 | cmp ebx, [file_size] |
||
524 | |||
525 | jne .err_2 |
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526 | |||
527 | mov eax, [km_file] |
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7122 | dunkaist | 528 | cmp dword [eax], 'KPCK' ; check kpack signature |
3786 | Serge | 529 | jne .raw_file |
530 | |||
531 | mov ebx, [eax+4] ;get real size of file |
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532 | mov [file_size], ebx |
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4237 | Serge | 533 | stdcall user_alloc, ebx ;and allocate space from user heap |
3786 | Serge | 534 | mov [um_file], eax |
535 | test eax, eax |
||
536 | jz .err_2 |
||
537 | |||
4237 | Serge | 538 | mov edx, [file_size] ;preallocate page memory |
539 | shr eax, 10 |
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9715 | Doczom | 540 | lea edi, [page_tabs + eax] |
4237 | Serge | 541 | add edx, 4095 |
542 | shr edx, 12 |
||
543 | @@: |
||
544 | call alloc_page |
||
545 | test eax, eax |
||
546 | jz .err_3 |
||
547 | |||
5356 | serge | 548 | or eax, PG_UWR |
4237 | Serge | 549 | stosd |
550 | dec edx |
||
551 | jnz @B |
||
552 | |||
3786 | Serge | 553 | pushad |
554 | mov ecx, unpack_mutex |
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555 | call mutex_lock |
||
556 | |||
557 | stdcall unpack, [km_file], [um_file] |
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558 | |||
559 | mov ecx, unpack_mutex |
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560 | call mutex_unlock |
||
561 | popad |
||
562 | |||
563 | stdcall kernel_free, [km_file] ;we don't need packed file anymore |
||
564 | .exit: |
||
4237 | Serge | 565 | |
566 | mov edi, [um_file] |
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567 | mov esi, [um_file] |
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568 | mov eax, [file_size] |
||
569 | mov edx, eax |
||
570 | |||
571 | add edi, eax ;cleanup remain space |
||
572 | mov ecx, 4096 ;from file end |
||
573 | and eax, 4095 |
||
574 | jz @f |
||
575 | sub ecx, eax |
||
576 | xor eax, eax |
||
577 | cld |
||
578 | rep stosb |
||
579 | @@: |
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3786 | Serge | 580 | mov eax, [um_file] |
581 | |||
582 | pop ebx |
||
583 | pop edi |
||
584 | pop esi |
||
585 | ret |
||
586 | |||
587 | .raw_file: ; sometimes we load unpacked file |
||
588 | stdcall user_alloc, ebx ; allocate space from user heap |
||
589 | mov [um_file], eax |
||
590 | |||
591 | test eax, eax |
||
592 | jz .err_2 |
||
593 | |||
594 | shr eax, 10 ; and remap pages. |
||
595 | |||
596 | mov ecx, [file_size] |
||
597 | add ecx, 4095 |
||
598 | shr ecx, 12 |
||
599 | |||
600 | mov esi, [km_file] |
||
601 | shr esi, 10 |
||
602 | add esi, page_tabs |
||
603 | |||
604 | lea edi, [page_tabs+eax] |
||
605 | |||
606 | cld |
||
607 | @@: |
||
608 | lodsd |
||
609 | and eax, 0xFFFFF000 |
||
5356 | serge | 610 | or eax, PG_UWR |
3786 | Serge | 611 | stosd |
612 | loop @B |
||
613 | |||
614 | stdcall free_kernel_space, [km_file] ; release allocated kernel space |
||
615 | jmp .exit ; physical pages still in use |
||
4237 | Serge | 616 | .err_3: |
617 | stdcall user_free, [um_file] |
||
3786 | Serge | 618 | .err_2: |
619 | stdcall kernel_free, [km_file] |
||
620 | .err_1: |
||
621 | xor eax, eax |
||
622 | xor edx, edx |
||
623 | |||
624 | pop ebx |
||
625 | pop edi |
||
626 | pop esi |
||
627 | ret |
||
628 | endp |
||
629 | |||
630 | |||
2489 | mario79 | 631 | uglobal |
2288 | clevermous | 632 | align 4 |
2489 | mario79 | 633 | unpack_mutex MUTEX |
2486 | mario79 | 634 | endg |
635 | |||
636 | align 4 |
||
3761 | clevermous | 637 | proc get_proc_ex stdcall uses ebx esi, proc_name:dword, imports:dword |
638 | mov ebx, [imports] |
||
639 | test ebx, ebx |
||
640 | jz .end |
||
641 | xor esi, esi |
||
2288 | clevermous | 642 | .look_up: |
643 | |||
3761 | clevermous | 644 | mov eax, [ebx+32] |
9715 | Doczom | 645 | mov eax, [OS_BASE + eax + esi*4] |
3761 | clevermous | 646 | add eax, OS_BASE |
2288 | clevermous | 647 | stdcall strncmp, eax, [proc_name], 256 |
648 | test eax, eax |
||
649 | jz .ok |
||
650 | |||
3761 | clevermous | 651 | inc esi |
652 | cmp esi, [ebx+24] |
||
653 | jb .look_up |
||
2288 | clevermous | 654 | .end: |
655 | xor eax, eax |
||
656 | ret |
||
3761 | clevermous | 657 | .ok: |
658 | mov eax, [ebx+28] |
||
9715 | Doczom | 659 | mov eax, [OS_BASE + eax + esi*4] |
3761 | clevermous | 660 | add eax, OS_BASE |
661 | ret |
||
2288 | clevermous | 662 | endp |
663 | |||
664 | align 4 |
||
665 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
||
666 | sym_count:dword, strings:dword, imports:dword |
||
667 | locals |
||
668 | retval dd ? |
||
669 | endl |
||
670 | |||
671 | mov edi, [symbols] |
||
672 | mov [retval], 1 |
||
673 | .fix: |
||
9715 | Doczom | 674 | movzx ebx, [edi + COFF_SYM.SectionNumber] |
2288 | clevermous | 675 | test ebx, ebx |
676 | jnz .internal |
||
9715 | Doczom | 677 | mov eax, dword [edi + COFF_SYM.Name] |
2288 | clevermous | 678 | test eax, eax |
679 | jnz @F |
||
680 | |||
681 | mov edi, [edi+4] |
||
682 | add edi, [strings] |
||
683 | @@: |
||
684 | push edi |
||
685 | stdcall get_proc_ex, edi, [imports] |
||
686 | pop edi |
||
687 | |||
688 | xor ebx, ebx |
||
689 | test eax, eax |
||
690 | jnz @F |
||
691 | |||
5998 | veliant | 692 | ; disable debug msg |
693 | ;mov esi, msg_unresolved |
||
694 | ;call sys_msg_board_str |
||
695 | ;mov esi, edi |
||
696 | ;call sys_msg_board_str |
||
697 | ;mov esi, msg_CR |
||
698 | ;call sys_msg_board_str |
||
2288 | clevermous | 699 | |
700 | mov [retval], 0 |
||
701 | @@: |
||
702 | mov edi, [symbols] |
||
9715 | Doczom | 703 | mov [edi + COFF_SYM.Value], eax |
2288 | clevermous | 704 | jmp .next |
705 | .internal: |
||
706 | cmp bx, -1 |
||
707 | je .next |
||
708 | cmp bx, -2 |
||
709 | je .next |
||
710 | |||
711 | dec ebx |
||
712 | shl ebx, 3 |
||
9715 | Doczom | 713 | lea ebx, [ebx + ebx*4] |
2288 | clevermous | 714 | add ebx, [sec] |
715 | |||
9715 | Doczom | 716 | mov eax, [ebx + COFF_SECTION.VirtualAddress] |
717 | add [edi + COFF_SYM.Value], eax |
||
2288 | clevermous | 718 | .next: |
2384 | hidnplayr | 719 | add edi, sizeof.COFF_SYM |
2288 | clevermous | 720 | mov [symbols], edi |
721 | dec [sym_count] |
||
722 | jnz .fix |
||
723 | mov eax, [retval] |
||
724 | ret |
||
725 | endp |
||
726 | |||
727 | align 4 |
||
728 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
729 | delta:dword |
||
730 | locals |
||
731 | n_sec dd ? |
||
732 | endl |
||
733 | |||
734 | mov eax, [coff] |
||
9715 | Doczom | 735 | movzx ebx, [eax + COFF_HEADER.nSections] |
2288 | clevermous | 736 | mov [n_sec], ebx |
737 | lea esi, [eax+20] |
||
738 | .fix_sec: |
||
9715 | Doczom | 739 | mov edi, [esi + COFF_SECTION.PtrReloc] |
2288 | clevermous | 740 | add edi, [coff] |
741 | |||
9715 | Doczom | 742 | movzx ecx, [esi + COFF_SECTION.NumReloc] |
2288 | clevermous | 743 | test ecx, ecx |
744 | jz .next |
||
745 | .reloc_loop: |
||
9715 | Doczom | 746 | mov ebx, [edi + COFF_RELOC.SymIndex] |
2288 | clevermous | 747 | add ebx, ebx |
748 | lea ebx, [ebx+ebx*8] |
||
749 | add ebx, [sym] |
||
750 | |||
9715 | Doczom | 751 | mov edx, [ebx + COFF_SYM.Value] |
2288 | clevermous | 752 | |
9715 | Doczom | 753 | cmp [edi + COFF_RELOC.Type], 6 |
2288 | clevermous | 754 | je .dir_32 |
755 | |||
9715 | Doczom | 756 | cmp [edi + COFF_RELOC.Type], 20 |
2288 | clevermous | 757 | jne .next_reloc |
758 | .rel_32: |
||
9715 | Doczom | 759 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
760 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 761 | sub edx, eax |
762 | sub edx, 4 |
||
763 | jmp .fix |
||
764 | .dir_32: |
||
9715 | Doczom | 765 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
766 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 767 | .fix: |
768 | add eax, [delta] |
||
769 | add [eax], edx |
||
770 | .next_reloc: |
||
771 | add edi, 10 |
||
772 | dec ecx |
||
773 | jnz .reloc_loop |
||
774 | .next: |
||
2384 | hidnplayr | 775 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 776 | dec [n_sec] |
777 | jnz .fix_sec |
||
778 | .exit: |
||
779 | ret |
||
780 | endp |
||
781 | |||
782 | align 4 |
||
783 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
784 | delta:dword |
||
785 | locals |
||
786 | n_sec dd ? |
||
787 | endl |
||
788 | |||
789 | mov eax, [coff] |
||
9715 | Doczom | 790 | movzx ebx, [eax + COFF_HEADER.nSections] |
2288 | clevermous | 791 | mov [n_sec], ebx |
792 | lea esi, [eax+20] |
||
793 | mov edx, [delta] |
||
794 | .fix_sec: |
||
9715 | Doczom | 795 | mov edi, [esi + COFF_SECTION.PtrReloc] |
2288 | clevermous | 796 | add edi, [coff] |
797 | |||
9715 | Doczom | 798 | movzx ecx, [esi + COFF_SECTION.NumReloc] |
2288 | clevermous | 799 | test ecx, ecx |
800 | jz .next |
||
801 | .reloc_loop: |
||
9715 | Doczom | 802 | cmp [edi + COFF_RELOC.Type], 6 |
2288 | clevermous | 803 | jne .next_reloc |
804 | .dir_32: |
||
9715 | Doczom | 805 | mov eax, [edi + COFF_RELOC.VirtualAddress] |
806 | add eax, [esi + COFF_SECTION.VirtualAddress] |
||
807 | add [eax + edx], edx |
||
2288 | clevermous | 808 | .next_reloc: |
809 | add edi, 10 |
||
810 | dec ecx |
||
811 | jnz .reloc_loop |
||
812 | .next: |
||
2384 | hidnplayr | 813 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 814 | dec [n_sec] |
815 | jnz .fix_sec |
||
816 | .exit: |
||
817 | ret |
||
818 | endp |
||
819 | |||
820 | ; in: edx -> COFF_SECTION struct |
||
821 | ; out: eax = alignment as mask for bits to drop |
||
822 | coff_get_align: |
||
823 | ; Rules: |
||
824 | ; - if alignment is not given, use default = 4K; |
||
825 | ; - if alignment is given and is no more than 4K, use it; |
||
826 | ; - if alignment is more than 4K, revert to 4K. |
||
827 | push ecx |
||
9715 | Doczom | 828 | mov cl, byte [edx + COFF_SECTION.Characteristics+2] |
2288 | clevermous | 829 | mov eax, 1 |
830 | shr cl, 4 |
||
831 | dec cl |
||
832 | js .default |
||
833 | cmp cl, 12 |
||
834 | jbe @f |
||
835 | .default: |
||
836 | mov cl, 12 |
||
837 | @@: |
||
838 | shl eax, cl |
||
839 | pop ecx |
||
840 | dec eax |
||
841 | ret |
||
842 | |||
843 | align 4 |
||
6792 | pathoswith | 844 | proc load_library stdcall, file_name:dword, encoding:dword |
6502 | pathoswith | 845 | locals |
846 | fullname dd ? |
||
847 | fileinfo rb 40 |
||
848 | coff dd ? |
||
849 | img_base dd ? |
||
850 | endl |
||
2288 | clevermous | 851 | |
852 | ; resolve file name |
||
6502 | pathoswith | 853 | stdcall kernel_alloc, maxPathLength |
854 | mov [fullname], eax |
||
6792 | pathoswith | 855 | mov edi, eax |
856 | mov esi, [file_name] |
||
857 | mov eax, [encoding] |
||
858 | push ebp |
||
859 | call getFullPath |
||
860 | pop ebp |
||
6502 | pathoswith | 861 | test eax, eax |
2288 | clevermous | 862 | jz .fail |
863 | ; scan for required DLL in list of already loaded for this process, |
||
864 | ; ignore timestamp |
||
3827 | clevermous | 865 | cli |
5130 | serge | 866 | mov esi, [current_process] |
6502 | pathoswith | 867 | mov edi, [fullname] |
9715 | Doczom | 868 | mov ebx, [esi + PROC.dlls_list_ptr] |
2288 | clevermous | 869 | test ebx, ebx |
870 | jz .not_in_process |
||
9715 | Doczom | 871 | mov esi, [ebx + HDLL.fd] |
2288 | clevermous | 872 | .scan_in_process: |
873 | cmp esi, ebx |
||
874 | jz .not_in_process |
||
9715 | Doczom | 875 | mov eax, [esi + HDLL.parent] |
2288 | clevermous | 876 | add eax, DLLDESCR.name |
877 | stdcall strncmp, eax, edi, -1 |
||
878 | test eax, eax |
||
879 | jnz .next_in_process |
||
880 | ; simple variant: load DLL which is already loaded in this process |
||
881 | ; just increment reference counters and return address of exports table |
||
9715 | Doczom | 882 | inc [esi + HDLL.refcount] |
883 | mov ecx, [esi + HDLL.parent] |
||
884 | inc [ecx + DLLDESCR.refcount] |
||
885 | mov eax, [ecx + DLLDESCR.exports] |
||
886 | sub eax, [ecx + DLLDESCR.defaultbase] |
||
887 | add eax, [esi + HDLL.base] |
||
3827 | clevermous | 888 | sti |
6502 | pathoswith | 889 | push eax |
890 | stdcall kernel_free, [fullname] |
||
891 | pop eax |
||
2288 | clevermous | 892 | ret |
6502 | pathoswith | 893 | |
2288 | clevermous | 894 | .next_in_process: |
9715 | Doczom | 895 | mov esi, [esi + HDLL.fd] |
2288 | clevermous | 896 | jmp .scan_in_process |
6502 | pathoswith | 897 | |
2288 | clevermous | 898 | .not_in_process: |
899 | ; scan in full list, compare timestamp |
||
3827 | clevermous | 900 | sti |
2288 | clevermous | 901 | lea eax, [fileinfo] |
902 | stdcall get_fileinfo, edi, eax |
||
903 | test eax, eax |
||
904 | jnz .fail |
||
3827 | clevermous | 905 | cli |
2288 | clevermous | 906 | mov esi, [dll_list.fd] |
907 | .scan_for_dlls: |
||
908 | cmp esi, dll_list |
||
909 | jz .load_new |
||
9715 | Doczom | 910 | lea eax, [esi + DLLDESCR.name] |
2288 | clevermous | 911 | stdcall strncmp, eax, edi, -1 |
912 | test eax, eax |
||
913 | jnz .continue_scan |
||
914 | .test_prev_dll: |
||
915 | mov eax, dword [fileinfo+24]; last modified time |
||
916 | mov edx, dword [fileinfo+28]; last modified date |
||
9715 | Doczom | 917 | cmp dword [esi + DLLDESCR.timestamp], eax |
2288 | clevermous | 918 | jnz .continue_scan |
9715 | Doczom | 919 | cmp dword [esi + DLLDESCR.timestamp+4], edx |
2288 | clevermous | 920 | jz .dll_already_loaded |
921 | .continue_scan: |
||
9715 | Doczom | 922 | mov esi, [esi + DLLDESCR.fd] |
2288 | clevermous | 923 | jmp .scan_for_dlls |
924 | |||
925 | ; new DLL |
||
926 | .load_new: |
||
3827 | clevermous | 927 | sti |
2288 | clevermous | 928 | ; load file |
929 | stdcall load_file, edi |
||
930 | test eax, eax |
||
931 | jz .fail |
||
932 | mov [coff], eax |
||
933 | mov dword [fileinfo+32], ebx |
||
934 | |||
935 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
||
936 | mov esi, edi |
||
937 | mov ecx, -1 |
||
938 | xor eax, eax |
||
939 | repnz scasb |
||
940 | not ecx |
||
9715 | Doczom | 941 | lea eax, [ecx + sizeof.DLLDESCR] |
2288 | clevermous | 942 | push ecx |
943 | call malloc |
||
944 | pop ecx |
||
945 | test eax, eax |
||
946 | jz .fail_and_free_coff |
||
947 | ; save timestamp |
||
9715 | Doczom | 948 | lea edi, [eax + DLLDESCR.name] |
2288 | clevermous | 949 | rep movsb |
950 | mov esi, eax |
||
951 | mov eax, dword [fileinfo+24] |
||
9715 | Doczom | 952 | mov dword [esi + DLLDESCR.timestamp], eax |
2288 | clevermous | 953 | mov eax, dword [fileinfo+28] |
9715 | Doczom | 954 | mov dword [esi + DLLDESCR.timestamp+4], eax |
2288 | clevermous | 955 | |
956 | ; calculate size of loaded DLL |
||
957 | mov edx, [coff] |
||
9715 | Doczom | 958 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 959 | xor ebx, ebx |
960 | |||
9823 | dunkaist | 961 | add edx, sizeof.COFF_HEADER |
2288 | clevermous | 962 | @@: |
963 | call coff_get_align |
||
964 | add ebx, eax |
||
965 | not eax |
||
966 | and ebx, eax |
||
9715 | Doczom | 967 | add ebx, [edx + COFF_SECTION.SizeOfRawData] |
2384 | hidnplayr | 968 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 969 | dec ecx |
970 | jnz @B |
||
971 | ; it must be nonzero and not too big |
||
9715 | Doczom | 972 | mov [esi + DLLDESCR.size], ebx |
2288 | clevermous | 973 | test ebx, ebx |
974 | jz .fail_and_free_dll |
||
975 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
976 | ja .fail_and_free_dll |
||
977 | ; allocate memory for kernel-side image |
||
978 | stdcall kernel_alloc, ebx |
||
979 | test eax, eax |
||
980 | jz .fail_and_free_dll |
||
9715 | Doczom | 981 | mov [esi + DLLDESCR.data], eax |
2288 | clevermous | 982 | ; calculate preferred base address |
983 | add ebx, 0x1FFF |
||
984 | and ebx, not 0xFFF |
||
985 | mov ecx, [dll_cur_addr] |
||
9715 | Doczom | 986 | lea edx, [ecx + ebx] |
2288 | clevermous | 987 | cmp edx, MAX_DEFAULT_DLL_ADDR |
988 | jb @f |
||
989 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
9715 | Doczom | 990 | lea edx, [ecx + ebx] |
2288 | clevermous | 991 | @@: |
9715 | Doczom | 992 | mov [esi + DLLDESCR.defaultbase], ecx |
2288 | clevermous | 993 | mov [dll_cur_addr], edx |
994 | |||
995 | ; copy sections and set correct values for VirtualAddress'es in headers |
||
996 | push esi |
||
997 | mov edx, [coff] |
||
9715 | Doczom | 998 | movzx ebx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 999 | mov edi, eax |
1000 | add edx, 20 |
||
1001 | cld |
||
1002 | @@: |
||
1003 | call coff_get_align |
||
1004 | add ecx, eax |
||
1005 | add edi, eax |
||
1006 | not eax |
||
1007 | and ecx, eax |
||
1008 | and edi, eax |
||
9715 | Doczom | 1009 | mov [edx + COFF_SECTION.VirtualAddress], ecx |
1010 | add ecx, [edx + COFF_SECTION.SizeOfRawData] |
||
1011 | mov esi, [edx + COFF_SECTION.PtrRawData] |
||
2288 | clevermous | 1012 | push ecx |
9715 | Doczom | 1013 | mov ecx, [edx + COFF_SECTION.SizeOfRawData] |
2288 | clevermous | 1014 | test esi, esi |
1015 | jnz .copy |
||
1016 | xor eax, eax |
||
1017 | rep stosb |
||
1018 | jmp .next |
||
1019 | .copy: |
||
1020 | add esi, [coff] |
||
1021 | rep movsb |
||
1022 | .next: |
||
1023 | pop ecx |
||
2384 | hidnplayr | 1024 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1025 | dec ebx |
1026 | jnz @B |
||
1027 | pop esi |
||
1028 | |||
1029 | ; save some additional data from COFF file |
||
1030 | ; later we will use COFF header, headers for sections and symbol table |
||
1031 | ; and also relocations table for all sections |
||
1032 | mov edx, [coff] |
||
9715 | Doczom | 1033 | mov ebx, [edx + COFF_HEADER.pSymTable] |
2288 | clevermous | 1034 | mov edi, dword [fileinfo+32] |
1035 | sub edi, ebx |
||
1036 | jc .fail_and_free_data |
||
9715 | Doczom | 1037 | mov [esi + DLLDESCR.symbols_lim], edi |
2288 | clevermous | 1038 | add ebx, edx |
9715 | Doczom | 1039 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1040 | lea ecx, [ecx*5] |
9715 | Doczom | 1041 | lea edi, [edi + ecx*8+20] |
9823 | dunkaist | 1042 | add edx, sizeof.COFF_HEADER |
2288 | clevermous | 1043 | @@: |
9715 | Doczom | 1044 | movzx eax, [edx + COFF_SECTION.NumReloc] |
2288 | clevermous | 1045 | lea eax, [eax*5] |
9715 | Doczom | 1046 | lea edi, [edi + eax*2] |
2384 | hidnplayr | 1047 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1048 | sub ecx, 5 |
1049 | jnz @b |
||
1050 | stdcall kernel_alloc, edi |
||
1051 | test eax, eax |
||
1052 | jz .fail_and_free_data |
||
1053 | mov edx, [coff] |
||
9715 | Doczom | 1054 | movzx ecx, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1055 | lea ecx, [ecx*5] |
1056 | lea ecx, [ecx*2+5] |
||
9715 | Doczom | 1057 | mov [esi + DLLDESCR.coff_hdr], eax |
2288 | clevermous | 1058 | push esi |
1059 | mov esi, edx |
||
1060 | mov edi, eax |
||
1061 | rep movsd |
||
1062 | pop esi |
||
9715 | Doczom | 1063 | mov [esi + DLLDESCR.symbols_ptr], edi |
2288 | clevermous | 1064 | push esi |
2384 | hidnplayr | 1065 | mov ecx, [edx+COFF_HEADER.nSymbols] |
9715 | Doczom | 1066 | mov [esi + DLLDESCR.symbols_num], ecx |
1067 | mov ecx, [esi + DLLDESCR.symbols_lim] |
||
2288 | clevermous | 1068 | mov esi, ebx |
1069 | rep movsb |
||
1070 | pop esi |
||
9715 | Doczom | 1071 | mov ebx, [esi + DLLDESCR.coff_hdr] |
2288 | clevermous | 1072 | push esi |
9715 | Doczom | 1073 | movzx eax, [edx + COFF_HEADER.nSections] |
2288 | clevermous | 1074 | lea edx, [ebx+20] |
1075 | @@: |
||
9715 | Doczom | 1076 | movzx ecx, [edx + COFF_SECTION.NumReloc] |
2288 | clevermous | 1077 | lea ecx, [ecx*5] |
9715 | Doczom | 1078 | mov esi, [edx + COFF_SECTION.PtrReloc] |
1079 | mov [edx + COFF_SECTION.PtrReloc], edi |
||
1080 | sub [edx + COFF_SECTION.PtrReloc], ebx |
||
2288 | clevermous | 1081 | add esi, [coff] |
1082 | shr ecx, 1 |
||
1083 | rep movsd |
||
1084 | adc ecx, ecx |
||
1085 | rep movsw |
||
2384 | hidnplayr | 1086 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1087 | dec eax |
1088 | jnz @b |
||
1089 | pop esi |
||
1090 | |||
1091 | ; fixup symbols |
||
1092 | mov edx, ebx |
||
9715 | Doczom | 1093 | mov eax, [ebx + COFF_HEADER.nSymbols] |
9823 | dunkaist | 1094 | add edx, sizeof.COFF_HEADER |
9715 | Doczom | 1095 | mov ecx, [esi + DLLDESCR.symbols_num] |
2288 | clevermous | 1096 | lea ecx, [ecx*9] |
1097 | add ecx, ecx |
||
9715 | Doczom | 1098 | add ecx, [esi + DLLDESCR.symbols_ptr] |
2288 | clevermous | 1099 | |
9715 | Doczom | 1100 | stdcall fix_coff_symbols, edx, [esi + DLLDESCR.symbols_ptr], eax, \ |
2288 | clevermous | 1101 | ecx, 0 |
1102 | ; test eax, eax |
||
1103 | ; jnz @F |
||
1104 | ; |
||
1105 | ;@@: |
||
1106 | |||
9715 | Doczom | 1107 | stdcall get_coff_sym, [esi + DLLDESCR.symbols_ptr], [ebx + COFF_HEADER.nSymbols], szEXPORTS |
2288 | clevermous | 1108 | test eax, eax |
1109 | jnz @F |
||
1110 | |||
9715 | Doczom | 1111 | stdcall get_coff_sym, [esi + DLLDESCR.symbols_ptr], [ebx + COFF_HEADER.nSymbols], sz_EXPORTS |
2288 | clevermous | 1112 | @@: |
9715 | Doczom | 1113 | mov [esi + DLLDESCR.exports], eax |
2288 | clevermous | 1114 | |
1115 | ; fix relocs in the hidden copy in kernel memory to default address |
||
1116 | ; it is first fix; usually this will be enough, but second fix |
||
1117 | ; can be necessary if real load address will not equal assumption |
||
9715 | Doczom | 1118 | mov eax, [esi + DLLDESCR.data] |
1119 | sub eax, [esi + DLLDESCR.defaultbase] |
||
1120 | stdcall fix_coff_relocs, ebx, [esi + DLLDESCR.symbols_ptr], eax |
||
2288 | clevermous | 1121 | |
1122 | stdcall kernel_free, [coff] |
||
1123 | |||
3827 | clevermous | 1124 | cli |
1125 | ; initialize DLLDESCR struct |
||
9715 | Doczom | 1126 | and dword [esi + DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
1127 | mov [esi + DLLDESCR.fd], dll_list |
||
3827 | clevermous | 1128 | mov eax, [dll_list.bk] |
1129 | mov [dll_list.bk], esi |
||
9715 | Doczom | 1130 | mov [esi + DLLDESCR.bk], eax |
1131 | mov [eax + DLLDESCR.fd], esi |
||
2288 | clevermous | 1132 | .dll_already_loaded: |
6502 | pathoswith | 1133 | stdcall kernel_free, [fullname] |
9715 | Doczom | 1134 | inc [esi + DLLDESCR.refcount] |
2288 | clevermous | 1135 | push esi |
1136 | call init_heap |
||
1137 | pop esi |
||
9715 | Doczom | 1138 | mov edi, [esi + DLLDESCR.size] |
1139 | stdcall user_alloc_at, [esi + DLLDESCR.defaultbase], edi |
||
2288 | clevermous | 1140 | test eax, eax |
1141 | jnz @f |
||
1142 | stdcall user_alloc, edi |
||
1143 | test eax, eax |
||
1144 | jz .fail_and_dereference |
||
1145 | @@: |
||
1146 | mov [img_base], eax |
||
2384 | hidnplayr | 1147 | mov eax, sizeof.HDLL |
2288 | clevermous | 1148 | call malloc |
1149 | test eax, eax |
||
1150 | jz .fail_and_free_user |
||
9828 | Doczom | 1151 | mov ebx, [current_slot] |
1152 | mov edx, [ebx + APPDATA.tid] |
||
9715 | Doczom | 1153 | mov [eax + HDLL.pid], edx |
2288 | clevermous | 1154 | push eax |
1155 | call init_dlls_in_thread |
||
1156 | pop ebx |
||
1157 | test eax, eax |
||
1158 | jz .fail_and_free_user |
||
9715 | Doczom | 1159 | mov edx, [eax + HDLL.fd] |
1160 | mov [ebx + HDLL.fd], edx |
||
1161 | mov [ebx + HDLL.bk], eax |
||
1162 | mov [eax + HDLL.fd], ebx |
||
1163 | mov [edx + HDLL.bk], ebx |
||
2288 | clevermous | 1164 | mov eax, ebx |
1165 | mov ebx, [img_base] |
||
9715 | Doczom | 1166 | mov [eax + HDLL.base], ebx |
1167 | mov [eax + HDLL.size], edi |
||
1168 | mov [eax + HDLL.refcount], 1 |
||
1169 | mov [eax + HDLL.parent], esi |
||
2288 | clevermous | 1170 | mov edx, ebx |
1171 | shr edx, 12 |
||
9715 | Doczom | 1172 | or dword [page_tabs + (edx-1)*4], MEM_BLOCK_DONT_FREE |
2288 | clevermous | 1173 | ; copy entries of page table from kernel-side image to usermode |
1174 | ; use copy-on-write for user-mode image, so map as readonly |
||
1175 | xor edi, edi |
||
9715 | Doczom | 1176 | mov ecx, [esi + DLLDESCR.data] |
2288 | clevermous | 1177 | shr ecx, 12 |
1178 | .map_pages_loop: |
||
9715 | Doczom | 1179 | mov eax, [page_tabs + ecx*4] |
9823 | dunkaist | 1180 | and eax, -PAGE_SIZE |
5356 | serge | 1181 | or al, PG_UR |
9715 | Doczom | 1182 | xchg eax, [page_tabs + edx*4] |
2288 | clevermous | 1183 | test al, 1 |
1184 | jz @f |
||
1185 | call free_page |
||
1186 | @@: |
||
1187 | invlpg [ebx+edi] |
||
1188 | inc ecx |
||
1189 | inc edx |
||
9823 | dunkaist | 1190 | add edi, PAGE_SIZE |
9715 | Doczom | 1191 | cmp edi, [esi + DLLDESCR.size] |
2288 | clevermous | 1192 | jb .map_pages_loop |
1193 | |||
1194 | ; if real user-mode base is not equal to preferred base, relocate image |
||
9715 | Doczom | 1195 | sub ebx, [esi + DLLDESCR.defaultbase] |
2288 | clevermous | 1196 | jz @f |
9715 | Doczom | 1197 | stdcall rebase_coff, [esi + DLLDESCR.coff_hdr], [esi + DLLDESCR.symbols_ptr], ebx |
2288 | clevermous | 1198 | @@: |
1199 | |||
9715 | Doczom | 1200 | mov eax, [esi + DLLDESCR.exports] |
1201 | sub eax, [esi + DLLDESCR.defaultbase] |
||
2288 | clevermous | 1202 | add eax, [img_base] |
3827 | clevermous | 1203 | sti |
2288 | clevermous | 1204 | ret |
6502 | pathoswith | 1205 | |
2288 | clevermous | 1206 | .fail_and_free_data: |
9715 | Doczom | 1207 | stdcall kernel_free, [esi + DLLDESCR.data] |
2288 | clevermous | 1208 | .fail_and_free_dll: |
1209 | mov eax, esi |
||
1210 | call free |
||
1211 | .fail_and_free_coff: |
||
1212 | stdcall kernel_free, [coff] |
||
1213 | .fail: |
||
6502 | pathoswith | 1214 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1215 | xor eax, eax |
1216 | ret |
||
6502 | pathoswith | 1217 | |
2288 | clevermous | 1218 | .fail_and_free_user: |
1219 | stdcall user_free, [img_base] |
||
1220 | .fail_and_dereference: |
||
1221 | mov eax, 1 ; delete 1 reference |
||
1222 | call dereference_dll |
||
3827 | clevermous | 1223 | sti |
2288 | clevermous | 1224 | xor eax, eax |
1225 | ret |
||
1226 | endp |
||
1227 | |||
1228 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
||
1229 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1230 | ; kept in sync for all threads of one process. |
||
1231 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1232 | ; NULL if memory allocation failed |
||
1233 | init_dlls_in_thread: |
||
5130 | serge | 1234 | mov ebx, [current_process] |
9715 | Doczom | 1235 | mov eax, [ebx + PROC.dlls_list_ptr] |
2288 | clevermous | 1236 | test eax, eax |
1237 | jnz .ret |
||
5130 | serge | 1238 | |
2288 | clevermous | 1239 | mov eax, 8 |
5130 | serge | 1240 | call malloc ; FIXME |
2288 | clevermous | 1241 | test eax, eax |
1242 | jz .ret |
||
5130 | serge | 1243 | |
2288 | clevermous | 1244 | mov [eax], eax |
1245 | mov [eax+4], eax |
||
5130 | serge | 1246 | |
1247 | mov ebx, [current_process] |
||
9715 | Doczom | 1248 | mov [ebx + PROC.dlls_list_ptr], eax |
2288 | clevermous | 1249 | .ret: |
1250 | ret |
||
1251 | |||
1252 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
||
1253 | dereference_dll: |
||
9715 | Doczom | 1254 | sub [esi + DLLDESCR.refcount], eax |
2288 | clevermous | 1255 | jnz .ret |
9715 | Doczom | 1256 | mov eax, [esi + DLLDESCR.fd] |
1257 | mov edx, [esi + DLLDESCR.bk] |
||
1258 | mov [eax + DLLDESCR.bk], edx |
||
1259 | mov [edx + DLLDESCR.fd], eax |
||
1260 | stdcall kernel_free, [esi + DLLDESCR.coff_hdr] |
||
1261 | stdcall kernel_free, [esi + DLLDESCR.data] |
||
2288 | clevermous | 1262 | mov eax, esi |
1263 | call free |
||
1264 | .ret: |
||
1265 | ret |
||
1266 | |||
1267 | destroy_hdll: |
||
1268 | push ebx ecx esi edi |
||
9715 | Doczom | 1269 | mov ebx, [eax + HDLL.base] |
1270 | mov esi, [eax + HDLL.parent] |
||
1271 | mov edx, [esi + DLLDESCR.size] |
||
5130 | serge | 1272 | |
2288 | clevermous | 1273 | push eax |
9715 | Doczom | 1274 | mov esi, [eax + HDLL.parent] |
1275 | mov eax, [eax + HDLL.refcount] |
||
2288 | clevermous | 1276 | call dereference_dll |
1277 | pop eax |
||
9715 | Doczom | 1278 | mov edx, [eax + HDLL.bk] |
1279 | mov ebx, [eax + HDLL.fd] |
||
1280 | mov [ebx + HDLL.bk], edx |
||
1281 | mov [edx + HDLL.fd], ebx |
||
2288 | clevermous | 1282 | call free |
1283 | pop edi esi ecx ebx |
||
1284 | ret |
||
1285 | |||
1286 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
||
1287 | destroy_all_hdlls: |
||
1288 | test esi, esi |
||
1289 | jz .ret |
||
1290 | .loop: |
||
9715 | Doczom | 1291 | mov eax, [esi + HDLL.fd] |
2288 | clevermous | 1292 | cmp eax, esi |
1293 | jz free |
||
1294 | call destroy_hdll |
||
1295 | jmp .loop |
||
1296 | .ret: |
||
1297 | ret |
||
1298 | |||
1299 | ; param |
||
1300 | ; eax= size |
||
1301 | ; ebx= pid |
||
1302 | |||
1303 | align 4 |
||
1304 | create_kernel_object: |
||
1305 | |||
1306 | push ebx |
||
1307 | call malloc |
||
1308 | pop ebx |
||
1309 | test eax, eax |
||
1310 | jz .fail |
||
1311 | |||
1312 | mov ecx, [current_slot] |
||
1313 | add ecx, APP_OBJ_OFFSET |
||
1314 | |||
1315 | pushfd |
||
1316 | cli |
||
9715 | Doczom | 1317 | mov edx, [ecx + APPOBJ.fd] |
1318 | mov [eax + APPOBJ.fd], edx |
||
1319 | mov [eax + APPOBJ.bk], ecx |
||
1320 | mov [eax + APPOBJ.pid], ebx |
||
2288 | clevermous | 1321 | |
9715 | Doczom | 1322 | mov [ecx + APPOBJ.fd], eax |
1323 | mov [edx + APPOBJ.bk], eax |
||
2288 | clevermous | 1324 | popfd |
1325 | .fail: |
||
1326 | ret |
||
1327 | |||
1328 | ; param |
||
1329 | ; eax= object |
||
1330 | |||
1331 | align 4 |
||
1332 | destroy_kernel_object: |
||
1333 | |||
1334 | pushfd |
||
1335 | cli |
||
9715 | Doczom | 1336 | mov ebx, [eax + APPOBJ.fd] |
1337 | mov ecx, [eax + APPOBJ.bk] |
||
1338 | mov [ebx + APPOBJ.bk], ecx |
||
1339 | mov [ecx + APPOBJ.fd], ebx |
||
2288 | clevermous | 1340 | popfd |
1341 | |||
1342 | xor edx, edx ;clear common header |
||
1343 | mov [eax], edx |
||
1344 | mov [eax+4], edx |
||
1345 | mov [eax+8], edx |
||
1346 | mov [eax+12], edx |
||
1347 | mov [eax+16], edx |
||
1348 | |||
1349 | call free ;release object memory |
||
1350 | ret |
||
5595 | serge | 1351 | |
6926 | serge | 1352 | |
1353 | ;void* __fastcall create_object(size_t size) |
||
5595 | serge | 1354 | ; param |
1355 | ; ecx= size |
||
1356 | |||
1357 | align 4 |
||
1358 | create_object: |
||
1359 | |||
1360 | push esi |
||
1361 | push edi |
||
1362 | pushfd |
||
1363 | cli |
||
1364 | |||
1365 | mov esi, [current_process] |
||
9715 | Doczom | 1366 | mov eax, [esi + PROC.ht_free] |
1367 | mov edi, [esi + PROC.ht_next] |
||
5595 | serge | 1368 | dec eax |
1369 | js .err0 |
||
1370 | |||
9715 | Doczom | 1371 | mov [esi + PROC.ht_free], eax |
1372 | mov eax, [esi + PROC.htab + edi*4] |
||
1373 | mov [esi + PROC.ht_next], eax |
||
5595 | serge | 1374 | popfd |
1375 | |||
1376 | mov eax, ecx |
||
1377 | call malloc |
||
1378 | test eax, eax |
||
1379 | jz .err1 |
||
1380 | |||
9715 | Doczom | 1381 | mov [eax + FUTEX.handle], edi |
1382 | mov [esi + PROC.htab+edi*4], eax |
||
5595 | serge | 1383 | pop edi |
1384 | pop esi |
||
1385 | ret |
||
1386 | |||
1387 | .err1: |
||
1388 | pushfd |
||
1389 | cli |
||
1390 | |||
9715 | Doczom | 1391 | mov eax, [esi + PROC.ht_next] |
1392 | mov [esi + PROC.htab+edi*4], eax |
||
1393 | mov [esi + PROC.ht_next], edi |
||
1394 | inc [esi + PROC.ht_free] |
||
5595 | serge | 1395 | .err0: |
1396 | popfd |
||
1397 | pop edi |
||
1398 | pop esi |
||
1399 | xor eax, eax |
||
1400 | ret |
||
1401 | |||
6926 | serge | 1402 | |
1403 | ;int __fastcall destroy_object(struct object *obj) |
||
1404 | |||
1405 | align 4 |
||
1406 | destroy_object: |
||
1407 | push esi |
||
1408 | mov esi, [current_process] |
||
9715 | Doczom | 1409 | mov edx, [ecx + FUTEX.handle] |
6926 | serge | 1410 | |
1411 | pushfd |
||
1412 | cli |
||
1413 | |||
9715 | Doczom | 1414 | mov eax, [esi + PROC.ht_next] |
1415 | mov [esi + PROC.htab + edx*4], eax |
||
1416 | mov [esi + PROC.ht_next], edx |
||
1417 | inc [esi + PROC.ht_free] |
||
6926 | serge | 1418 | |
1419 | popfd |
||
1420 | pop esi |
||
1421 | |||
1422 | mov eax, ecx |
||
1423 | call free |
||
1424 | xor eax, eax |
||
1425 | ret |
||
1426 | .fail: |
||
1427 | popfd |
||
1428 | pop esi |
||
1429 | mov eax, -1 |
||
1430 | ret |
||
1431 |