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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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6502 | pathoswith | 3 | ;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License. ;; |
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2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | $Revision: 6792 $ |
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9 | |||
10 | |||
11 | DRV_COMPAT equ 5 ;minimal required drivers version |
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12 | DRV_CURRENT equ 6 ;current drivers model version |
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13 | |||
14 | DRV_VERSION equ (DRV_COMPAT shl 16) or DRV_CURRENT |
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15 | PID_KERNEL equ 1 ;os_idle thread |
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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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24 | test dword [ebx+APPDATA.event_mask], EVENT_NOTIFY |
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25 | jz @f |
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26 | and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY |
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27 | mov edi, [p_ev] |
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28 | mov dword [edi], EV_INTR |
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29 | mov eax, [ebx+APPDATA.event] |
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30 | mov dword [edi+4], eax |
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31 | ret |
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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 | align 4 |
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38 | proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword |
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39 | push ebx |
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40 | xor eax, eax |
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41 | xor ebx, ebx |
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42 | mov ah, byte [bus] |
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43 | mov al, 6 |
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44 | mov bh, byte [devfn] |
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45 | mov bl, byte [reg] |
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46 | call pci_read_reg |
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47 | pop ebx |
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48 | ret |
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49 | endp |
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50 | |||
51 | align 4 |
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52 | proc pci_read16 stdcall, bus:dword, devfn:dword, reg:dword |
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53 | push ebx |
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54 | xor eax, eax |
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55 | xor ebx, ebx |
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56 | mov ah, byte [bus] |
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57 | mov al, 5 |
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58 | mov bh, byte [devfn] |
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59 | mov bl, byte [reg] |
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60 | call pci_read_reg |
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61 | pop ebx |
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62 | ret |
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63 | endp |
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64 | |||
65 | align 4 |
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66 | proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword |
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67 | push ebx |
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68 | xor eax, eax |
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69 | xor ebx, ebx |
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70 | mov ah, byte [bus] |
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71 | mov al, 4 |
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72 | mov bh, byte [devfn] |
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73 | mov bl, byte [reg] |
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74 | call pci_read_reg |
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75 | pop ebx |
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76 | ret |
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77 | endp |
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78 | |||
79 | align 4 |
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80 | proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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81 | push ebx |
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82 | xor eax, eax |
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83 | xor ebx, ebx |
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84 | mov ah, byte [bus] |
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85 | mov al, 8 |
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86 | mov bh, byte [devfn] |
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87 | mov bl, byte [reg] |
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88 | mov ecx, [val] |
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89 | call pci_write_reg |
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90 | pop ebx |
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91 | ret |
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92 | endp |
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93 | |||
94 | align 4 |
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95 | proc pci_write16 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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96 | push ebx |
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97 | xor eax, eax |
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98 | xor ebx, ebx |
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99 | mov ah, byte [bus] |
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100 | mov al, 9 |
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101 | mov bh, byte [devfn] |
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102 | mov bl, byte [reg] |
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103 | mov ecx, [val] |
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104 | call pci_write_reg |
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105 | pop ebx |
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106 | ret |
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107 | endp |
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108 | |||
109 | align 4 |
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110 | proc pci_write32 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
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111 | push ebx |
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112 | xor eax, eax |
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113 | xor ebx, ebx |
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114 | mov ah, byte [bus] |
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115 | mov al, 10 |
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116 | mov bh, byte [devfn] |
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117 | mov bl, byte [reg] |
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118 | mov ecx, [val] |
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119 | call pci_write_reg |
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120 | pop ebx |
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121 | ret |
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122 | endp |
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123 | |||
124 | handle equ IOCTL.handle |
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125 | io_code equ IOCTL.io_code |
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126 | input equ IOCTL.input |
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127 | inp_size equ IOCTL.inp_size |
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128 | output equ IOCTL.output |
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129 | out_size equ IOCTL.out_size |
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130 | |||
131 | |||
132 | align 4 |
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133 | proc srv_handler stdcall, ioctl:dword |
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134 | mov esi, [ioctl] |
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135 | test esi, esi |
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136 | jz .err |
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137 | |||
138 | mov edi, [esi+handle] |
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139 | cmp [edi+SRV.magic], ' SRV' |
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140 | jne .fail |
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141 | |||
2384 | hidnplayr | 142 | cmp [edi+SRV.size], sizeof.SRV |
2288 | clevermous | 143 | jne .fail |
144 | |||
3520 | clevermous | 145 | ; stdcall [edi+SRV.srv_proc], esi |
146 | mov eax, [edi+SRV.srv_proc] |
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147 | test eax, eax |
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148 | jz .fail |
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149 | stdcall eax, esi |
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2288 | clevermous | 150 | ret |
151 | .fail: |
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152 | xor eax, eax |
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153 | not eax |
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154 | mov [esi+output], eax |
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155 | mov [esi+out_size], 4 |
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156 | ret |
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157 | .err: |
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158 | xor eax, eax |
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159 | not eax |
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160 | ret |
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161 | endp |
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162 | |||
163 | ; param |
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164 | ; ecx= io_control |
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165 | ; |
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166 | ; retval |
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167 | ; eax= error code |
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168 | |||
169 | align 4 |
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170 | srv_handlerEx: |
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171 | cmp ecx, OS_BASE |
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172 | jae .fail |
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173 | |||
174 | mov eax, [ecx+handle] |
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175 | cmp [eax+SRV.magic], ' SRV' |
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176 | jne .fail |
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177 | |||
2384 | hidnplayr | 178 | cmp [eax+SRV.size], sizeof.SRV |
2288 | clevermous | 179 | jne .fail |
180 | |||
3520 | clevermous | 181 | ; stdcall [eax+SRV.srv_proc], ecx |
182 | mov eax, [eax+SRV.srv_proc] |
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183 | test eax, eax |
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184 | jz .fail |
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185 | stdcall eax, ecx |
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2288 | clevermous | 186 | ret |
187 | .fail: |
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188 | or eax, -1 |
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189 | ret |
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190 | |||
191 | restore handle |
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192 | restore io_code |
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193 | restore input |
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194 | restore inp_size |
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195 | restore output |
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196 | restore out_size |
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197 | |||
198 | align 4 |
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199 | proc get_service stdcall, sz_name:dword |
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200 | mov eax, [sz_name] |
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201 | test eax, eax |
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202 | jnz @F |
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203 | ret |
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204 | @@: |
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205 | mov edx, [srv.fd] |
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206 | @@: |
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2384 | hidnplayr | 207 | cmp edx, srv.fd-SRV.fd |
2288 | clevermous | 208 | je .not_load |
209 | |||
210 | stdcall strncmp, edx, [sz_name], 16 |
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211 | test eax, eax |
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5088 | clevermous | 212 | mov eax, edx |
213 | je .nothing |
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2288 | clevermous | 214 | |
215 | mov edx, [edx+SRV.fd] |
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216 | jmp @B |
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217 | .not_load: |
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4418 | clevermous | 218 | mov eax, [sz_name] |
219 | push edi |
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220 | sub esp, 36 |
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221 | mov edi, esp |
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222 | mov dword [edi], '/sys' |
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223 | mov dword [edi+4], '/dri' |
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224 | mov dword [edi+8], 'vers' |
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225 | mov byte [edi+12], '/' |
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226 | @@: |
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227 | mov dl, [eax] |
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228 | mov [edi+13], dl |
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229 | inc eax |
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230 | inc edi |
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231 | test dl, dl |
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232 | jnz @b |
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233 | mov dword [edi+12], '.sys' |
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234 | mov byte [edi+16], 0 |
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235 | mov edi, esp |
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236 | stdcall load_pe_driver, edi, 0 |
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237 | add esp, 36 |
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238 | pop edi |
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239 | .nothing: |
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2288 | clevermous | 240 | ret |
241 | endp |
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242 | |||
3520 | clevermous | 243 | reg_service: |
244 | xor eax, eax |
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245 | mov ecx, [esp+8] |
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246 | jecxz .nothing |
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247 | push sizeof.SRV |
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248 | push ecx |
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249 | pushd [esp+12] |
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250 | call reg_service_ex |
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251 | .nothing: |
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252 | ret 8 |
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2288 | clevermous | 253 | |
3520 | clevermous | 254 | reg_usb_driver: |
255 | push sizeof.USBSRV |
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256 | pushd [esp+12] |
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257 | pushd [esp+12] |
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258 | call reg_service_ex |
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259 | test eax, eax |
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260 | jz .nothing |
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261 | mov ecx, [esp+12] |
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262 | mov [eax+USBSRV.usb_func], ecx |
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263 | .nothing: |
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264 | ret 12 |
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265 | |||
266 | proc reg_service_ex stdcall, name:dword, handler:dword, srvsize:dword |
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267 | |||
2288 | clevermous | 268 | push ebx |
269 | |||
270 | xor eax, eax |
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271 | |||
272 | cmp [name], eax |
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273 | je .fail |
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274 | |||
3520 | clevermous | 275 | ; cmp [handler], eax |
276 | ; je .fail |
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2288 | clevermous | 277 | |
3520 | clevermous | 278 | mov eax, [srvsize] |
2288 | clevermous | 279 | call malloc |
280 | test eax, eax |
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281 | jz .fail |
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282 | |||
283 | push esi |
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284 | push edi |
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285 | mov edi, eax |
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286 | mov esi, [name] |
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287 | movsd |
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288 | movsd |
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289 | movsd |
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290 | movsd |
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291 | pop edi |
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292 | pop esi |
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293 | |||
294 | mov [eax+SRV.magic], ' SRV' |
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2384 | hidnplayr | 295 | mov [eax+SRV.size], sizeof.SRV |
2288 | clevermous | 296 | |
2384 | hidnplayr | 297 | mov ebx, srv.fd-SRV.fd |
2288 | clevermous | 298 | mov edx, [ebx+SRV.fd] |
299 | mov [eax+SRV.fd], edx |
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300 | mov [eax+SRV.bk], ebx |
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301 | mov [ebx+SRV.fd], eax |
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302 | mov [edx+SRV.bk], eax |
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303 | |||
304 | mov ecx, [handler] |
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305 | mov [eax+SRV.srv_proc], ecx |
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306 | pop ebx |
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307 | ret |
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308 | .fail: |
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309 | xor eax, eax |
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310 | pop ebx |
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311 | ret |
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312 | endp |
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313 | |||
314 | align 4 |
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315 | proc get_proc stdcall, exp:dword, sz_name:dword |
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316 | |||
317 | mov edx, [exp] |
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318 | .next: |
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319 | mov eax, [edx] |
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320 | test eax, eax |
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321 | jz .end |
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322 | |||
323 | push edx |
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324 | stdcall strncmp, eax, [sz_name], 16 |
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325 | pop edx |
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326 | test eax, eax |
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327 | jz .ok |
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328 | |||
329 | add edx, 8 |
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330 | jmp .next |
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331 | .ok: |
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332 | mov eax, [edx+4] |
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333 | .end: |
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334 | ret |
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335 | endp |
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336 | |||
337 | align 4 |
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338 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
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339 | |||
340 | @@: |
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341 | stdcall strncmp, [pSym], [sz_sym], 8 |
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342 | test eax, eax |
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343 | jz .ok |
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344 | add [pSym], 18 |
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345 | dec [count] |
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346 | jnz @b |
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347 | xor eax, eax |
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348 | ret |
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349 | .ok: |
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350 | mov eax, [pSym] |
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351 | mov eax, [eax+8] |
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352 | ret |
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353 | endp |
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354 | |||
355 | align 4 |
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356 | proc get_curr_task |
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357 | mov eax, [CURRENT_TASK] |
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358 | shl eax, 8 |
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359 | ret |
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360 | endp |
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361 | |||
362 | align 4 |
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363 | proc get_fileinfo stdcall, file_name:dword, info:dword |
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364 | locals |
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365 | cmd dd ? |
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366 | offset dd ? |
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367 | dd ? |
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368 | count dd ? |
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369 | buff dd ? |
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370 | db ? |
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371 | name dd ? |
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372 | endl |
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373 | |||
374 | xor eax, eax |
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375 | mov ebx, [file_name] |
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376 | mov ecx, [info] |
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377 | |||
378 | mov [cmd], 5 |
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379 | mov [offset], eax |
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380 | mov [offset+4], eax |
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381 | mov [count], eax |
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382 | mov [buff], ecx |
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383 | mov byte [buff+4], al |
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384 | mov [name], ebx |
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385 | |||
386 | mov eax, 70 |
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387 | lea ebx, [cmd] |
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388 | int 0x40 |
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389 | ret |
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390 | endp |
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391 | |||
392 | align 4 |
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393 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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394 | bytes:dword |
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395 | locals |
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396 | cmd dd ? |
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397 | offset dd ? |
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398 | dd ? |
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399 | count dd ? |
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400 | buff dd ? |
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401 | db ? |
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402 | name dd ? |
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403 | endl |
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404 | |||
405 | xor eax, eax |
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406 | mov ebx, [file_name] |
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407 | mov ecx, [off] |
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408 | mov edx, [bytes] |
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409 | mov esi, [buffer] |
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410 | |||
411 | mov [cmd], eax |
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412 | mov [offset], ecx |
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413 | mov [offset+4], eax |
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414 | mov [count], edx |
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415 | mov [buff], esi |
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416 | mov byte [buff+4], al |
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417 | mov [name], ebx |
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418 | |||
419 | pushad |
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420 | lea ebx, [cmd] |
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3296 | clevermous | 421 | call file_system_lfn_protected |
2288 | clevermous | 422 | popad |
423 | ret |
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424 | endp |
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425 | |||
426 | ; description |
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427 | ; allocate kernel memory and loads the specified file |
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428 | ; |
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429 | ; param |
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3786 | Serge | 430 | ; file_name= path to file |
2288 | clevermous | 431 | ; |
432 | ; retval |
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433 | ; eax= file image in kernel memory |
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434 | ; ebx= size of file |
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435 | ; |
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436 | ; warging |
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437 | ; You mast call kernel_free() to delete each file |
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438 | ; loaded by the load_file() function |
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439 | |||
440 | align 4 |
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441 | proc load_file stdcall, file_name:dword |
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442 | locals |
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443 | attr dd ? |
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444 | flags dd ? |
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445 | cr_time dd ? |
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446 | cr_date dd ? |
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447 | acc_time dd ? |
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448 | acc_date dd ? |
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449 | mod_time dd ? |
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450 | mod_date dd ? |
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451 | file_size dd ? |
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452 | |||
453 | file dd ? |
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454 | file2 dd ? |
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455 | endl |
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456 | |||
457 | push esi |
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458 | push edi |
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459 | |||
460 | lea eax, [attr] |
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461 | stdcall get_fileinfo, [file_name], eax |
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462 | test eax, eax |
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463 | jnz .fail |
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464 | |||
465 | mov eax, [file_size] |
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466 | cmp eax, 1024*1024*16 |
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467 | ja .fail |
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468 | |||
469 | stdcall kernel_alloc, [file_size] |
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470 | mov [file], eax |
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471 | test eax, eax |
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472 | jz .fail |
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473 | |||
474 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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475 | cmp ebx, [file_size] |
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476 | jne .cleanup |
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477 | |||
478 | mov eax, [file] |
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479 | cmp dword [eax], 0x4B43504B |
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480 | jne .exit |
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481 | mov ebx, [eax+4] |
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482 | mov [file_size], ebx |
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483 | stdcall kernel_alloc, ebx |
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484 | |||
485 | test eax, eax |
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486 | jz .cleanup |
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487 | |||
488 | mov [file2], eax |
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2486 | mario79 | 489 | |
2500 | mario79 | 490 | pushad |
2489 | mario79 | 491 | mov ecx, unpack_mutex |
492 | call mutex_lock |
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2500 | mario79 | 493 | popad |
2486 | mario79 | 494 | |
2288 | clevermous | 495 | stdcall unpack, [file], eax |
2486 | mario79 | 496 | |
2500 | mario79 | 497 | pushad |
498 | mov ecx, unpack_mutex |
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2489 | mario79 | 499 | call mutex_unlock |
2500 | mario79 | 500 | popad |
2486 | mario79 | 501 | |
2288 | clevermous | 502 | stdcall kernel_free, [file] |
503 | mov eax, [file2] |
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504 | mov ebx, [file_size] |
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505 | .exit: |
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506 | push eax |
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507 | lea edi, [eax+ebx] ;cleanup remain space |
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508 | mov ecx, 4096 ;from file end |
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509 | and ebx, 4095 |
||
510 | jz @f |
||
511 | sub ecx, ebx |
||
512 | xor eax, eax |
||
513 | cld |
||
514 | rep stosb |
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515 | @@: |
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516 | mov ebx, [file_size] |
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517 | pop eax |
||
518 | pop edi |
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519 | pop esi |
||
520 | ret |
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521 | .cleanup: |
||
522 | stdcall kernel_free, [file] |
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523 | .fail: |
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524 | xor eax, eax |
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525 | xor ebx, ebx |
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526 | pop edi |
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527 | pop esi |
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528 | ret |
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529 | endp |
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530 | |||
3786 | Serge | 531 | ; description |
532 | ; allocate user memory and loads the specified file |
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533 | ; |
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534 | ; param |
||
535 | ; file_name= path to file |
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536 | ; |
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537 | ; retval |
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538 | ; eax= file image in user memory |
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539 | ; ebx= size of file |
||
540 | ; |
||
541 | ; warging |
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542 | ; You mast call kernel_free() to delete each file |
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543 | ; loaded by the load_file() function |
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544 | |||
545 | align 4 |
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546 | proc load_file_umode stdcall, file_name:dword |
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547 | locals |
||
548 | attr dd ? |
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549 | flags dd ? |
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550 | cr_time dd ? |
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551 | cr_date dd ? |
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552 | acc_time dd ? |
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553 | acc_date dd ? |
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554 | mod_time dd ? |
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555 | mod_date dd ? |
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556 | file_size dd ? |
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557 | |||
558 | km_file dd ? |
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559 | um_file dd ? |
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560 | endl |
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561 | |||
562 | push esi |
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563 | push edi |
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564 | push ebx |
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565 | |||
566 | lea eax, [attr] |
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567 | stdcall get_fileinfo, [file_name], eax ;find file and get info |
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568 | test eax, eax |
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569 | jnz .err_1 |
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570 | |||
571 | mov eax, [file_size] |
||
572 | cmp eax, 1024*1024*16 ;to be enough for anybody (c) |
||
573 | ja .err_1 |
||
574 | ;it is very likely that the file is packed |
||
575 | stdcall kernel_alloc, [file_size] ;with kpack, so allocate memory from kernel heap |
||
576 | mov [km_file], eax |
||
577 | test eax, eax |
||
578 | jz .err_1 |
||
579 | |||
580 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
||
581 | cmp ebx, [file_size] |
||
582 | |||
583 | jne .err_2 |
||
584 | |||
585 | mov eax, [km_file] |
||
586 | cmp dword [eax], 0x4B43504B ; check kpack signature |
||
587 | jne .raw_file |
||
588 | |||
589 | mov ebx, [eax+4] ;get real size of file |
||
590 | mov [file_size], ebx |
||
4237 | Serge | 591 | stdcall user_alloc, ebx ;and allocate space from user heap |
3786 | Serge | 592 | mov [um_file], eax |
593 | test eax, eax |
||
594 | jz .err_2 |
||
595 | |||
4237 | Serge | 596 | mov edx, [file_size] ;preallocate page memory |
597 | shr eax, 10 |
||
598 | lea edi, [page_tabs+eax] |
||
599 | add edx, 4095 |
||
600 | shr edx, 12 |
||
601 | @@: |
||
602 | call alloc_page |
||
603 | test eax, eax |
||
604 | jz .err_3 |
||
605 | |||
5356 | serge | 606 | or eax, PG_UWR |
4237 | Serge | 607 | stosd |
608 | dec edx |
||
609 | jnz @B |
||
610 | |||
3786 | Serge | 611 | pushad |
612 | mov ecx, unpack_mutex |
||
613 | call mutex_lock |
||
614 | |||
615 | stdcall unpack, [km_file], [um_file] |
||
616 | |||
617 | mov ecx, unpack_mutex |
||
618 | call mutex_unlock |
||
619 | popad |
||
620 | |||
621 | stdcall kernel_free, [km_file] ;we don't need packed file anymore |
||
622 | .exit: |
||
4237 | Serge | 623 | |
624 | mov edi, [um_file] |
||
625 | mov esi, [um_file] |
||
626 | mov eax, [file_size] |
||
627 | mov edx, eax |
||
628 | |||
629 | add edi, eax ;cleanup remain space |
||
630 | mov ecx, 4096 ;from file end |
||
631 | and eax, 4095 |
||
632 | jz @f |
||
633 | sub ecx, eax |
||
634 | xor eax, eax |
||
635 | cld |
||
636 | rep stosb |
||
637 | @@: |
||
3786 | Serge | 638 | mov eax, [um_file] |
639 | |||
640 | pop ebx |
||
641 | pop edi |
||
642 | pop esi |
||
643 | ret |
||
644 | |||
645 | .raw_file: ; sometimes we load unpacked file |
||
646 | stdcall user_alloc, ebx ; allocate space from user heap |
||
647 | mov [um_file], eax |
||
648 | |||
649 | test eax, eax |
||
650 | jz .err_2 |
||
651 | |||
652 | shr eax, 10 ; and remap pages. |
||
653 | |||
654 | mov ecx, [file_size] |
||
655 | add ecx, 4095 |
||
656 | shr ecx, 12 |
||
657 | |||
658 | mov esi, [km_file] |
||
659 | shr esi, 10 |
||
660 | add esi, page_tabs |
||
661 | |||
662 | lea edi, [page_tabs+eax] |
||
663 | |||
664 | cld |
||
665 | @@: |
||
666 | lodsd |
||
667 | and eax, 0xFFFFF000 |
||
5356 | serge | 668 | or eax, PG_UWR |
3786 | Serge | 669 | stosd |
670 | loop @B |
||
671 | |||
672 | stdcall free_kernel_space, [km_file] ; release allocated kernel space |
||
673 | jmp .exit ; physical pages still in use |
||
4237 | Serge | 674 | .err_3: |
675 | stdcall user_free, [um_file] |
||
3786 | Serge | 676 | .err_2: |
677 | stdcall kernel_free, [km_file] |
||
678 | .err_1: |
||
679 | xor eax, eax |
||
680 | xor edx, edx |
||
681 | |||
682 | pop ebx |
||
683 | pop edi |
||
684 | pop esi |
||
685 | ret |
||
686 | endp |
||
687 | |||
688 | |||
2489 | mario79 | 689 | uglobal |
2288 | clevermous | 690 | align 4 |
2489 | mario79 | 691 | unpack_mutex MUTEX |
2486 | mario79 | 692 | endg |
693 | |||
694 | align 4 |
||
3761 | clevermous | 695 | proc get_proc_ex stdcall uses ebx esi, proc_name:dword, imports:dword |
696 | mov ebx, [imports] |
||
697 | test ebx, ebx |
||
698 | jz .end |
||
699 | xor esi, esi |
||
2288 | clevermous | 700 | .look_up: |
701 | |||
3761 | clevermous | 702 | mov eax, [ebx+32] |
703 | mov eax, [OS_BASE+eax+esi*4] |
||
704 | add eax, OS_BASE |
||
2288 | clevermous | 705 | stdcall strncmp, eax, [proc_name], 256 |
706 | test eax, eax |
||
707 | jz .ok |
||
708 | |||
3761 | clevermous | 709 | inc esi |
710 | cmp esi, [ebx+24] |
||
711 | jb .look_up |
||
2288 | clevermous | 712 | .end: |
713 | xor eax, eax |
||
714 | ret |
||
3761 | clevermous | 715 | .ok: |
716 | mov eax, [ebx+28] |
||
717 | mov eax, [OS_BASE+eax+esi*4] |
||
718 | add eax, OS_BASE |
||
719 | ret |
||
2288 | clevermous | 720 | endp |
721 | |||
722 | align 4 |
||
723 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
||
724 | sym_count:dword, strings:dword, imports:dword |
||
725 | locals |
||
726 | retval dd ? |
||
727 | endl |
||
728 | |||
729 | mov edi, [symbols] |
||
730 | mov [retval], 1 |
||
731 | .fix: |
||
2384 | hidnplayr | 732 | movzx ebx, [edi+COFF_SYM.SectionNumber] |
2288 | clevermous | 733 | test ebx, ebx |
734 | jnz .internal |
||
2384 | hidnplayr | 735 | mov eax, dword [edi+COFF_SYM.Name] |
2288 | clevermous | 736 | test eax, eax |
737 | jnz @F |
||
738 | |||
739 | mov edi, [edi+4] |
||
740 | add edi, [strings] |
||
741 | @@: |
||
742 | push edi |
||
743 | stdcall get_proc_ex, edi, [imports] |
||
744 | pop edi |
||
745 | |||
746 | xor ebx, ebx |
||
747 | test eax, eax |
||
748 | jnz @F |
||
749 | |||
5998 | veliant | 750 | ; disable debug msg |
751 | ;mov esi, msg_unresolved |
||
752 | ;call sys_msg_board_str |
||
753 | ;mov esi, edi |
||
754 | ;call sys_msg_board_str |
||
755 | ;mov esi, msg_CR |
||
756 | ;call sys_msg_board_str |
||
2288 | clevermous | 757 | |
758 | mov [retval], 0 |
||
759 | @@: |
||
760 | mov edi, [symbols] |
||
2384 | hidnplayr | 761 | mov [edi+COFF_SYM.Value], eax |
2288 | clevermous | 762 | jmp .next |
763 | .internal: |
||
764 | cmp bx, -1 |
||
765 | je .next |
||
766 | cmp bx, -2 |
||
767 | je .next |
||
768 | |||
769 | dec ebx |
||
770 | shl ebx, 3 |
||
771 | lea ebx, [ebx+ebx*4] |
||
772 | add ebx, [sec] |
||
773 | |||
2384 | hidnplayr | 774 | mov eax, [ebx+COFF_SECTION.VirtualAddress] |
775 | add [edi+COFF_SYM.Value], eax |
||
2288 | clevermous | 776 | .next: |
2384 | hidnplayr | 777 | add edi, sizeof.COFF_SYM |
2288 | clevermous | 778 | mov [symbols], edi |
779 | dec [sym_count] |
||
780 | jnz .fix |
||
781 | mov eax, [retval] |
||
782 | ret |
||
783 | endp |
||
784 | |||
785 | align 4 |
||
786 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
787 | delta:dword |
||
788 | locals |
||
789 | n_sec dd ? |
||
790 | endl |
||
791 | |||
792 | mov eax, [coff] |
||
2384 | hidnplayr | 793 | movzx ebx, [eax+COFF_HEADER.nSections] |
2288 | clevermous | 794 | mov [n_sec], ebx |
795 | lea esi, [eax+20] |
||
796 | .fix_sec: |
||
2384 | hidnplayr | 797 | mov edi, [esi+COFF_SECTION.PtrReloc] |
2288 | clevermous | 798 | add edi, [coff] |
799 | |||
2384 | hidnplayr | 800 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
2288 | clevermous | 801 | test ecx, ecx |
802 | jz .next |
||
803 | .reloc_loop: |
||
2384 | hidnplayr | 804 | mov ebx, [edi+COFF_RELOC.SymIndex] |
2288 | clevermous | 805 | add ebx, ebx |
806 | lea ebx, [ebx+ebx*8] |
||
807 | add ebx, [sym] |
||
808 | |||
2384 | hidnplayr | 809 | mov edx, [ebx+COFF_SYM.Value] |
2288 | clevermous | 810 | |
2384 | hidnplayr | 811 | cmp [edi+COFF_RELOC.Type], 6 |
2288 | clevermous | 812 | je .dir_32 |
813 | |||
2384 | hidnplayr | 814 | cmp [edi+COFF_RELOC.Type], 20 |
2288 | clevermous | 815 | jne .next_reloc |
816 | .rel_32: |
||
2384 | hidnplayr | 817 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
818 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 819 | sub edx, eax |
820 | sub edx, 4 |
||
821 | jmp .fix |
||
822 | .dir_32: |
||
2384 | hidnplayr | 823 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
824 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 825 | .fix: |
826 | add eax, [delta] |
||
827 | add [eax], edx |
||
828 | .next_reloc: |
||
829 | add edi, 10 |
||
830 | dec ecx |
||
831 | jnz .reloc_loop |
||
832 | .next: |
||
2384 | hidnplayr | 833 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 834 | dec [n_sec] |
835 | jnz .fix_sec |
||
836 | .exit: |
||
837 | ret |
||
838 | endp |
||
839 | |||
840 | align 4 |
||
841 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
842 | delta:dword |
||
843 | locals |
||
844 | n_sec dd ? |
||
845 | endl |
||
846 | |||
847 | mov eax, [coff] |
||
2384 | hidnplayr | 848 | movzx ebx, [eax+COFF_HEADER.nSections] |
2288 | clevermous | 849 | mov [n_sec], ebx |
850 | lea esi, [eax+20] |
||
851 | mov edx, [delta] |
||
852 | .fix_sec: |
||
2384 | hidnplayr | 853 | mov edi, [esi+COFF_SECTION.PtrReloc] |
2288 | clevermous | 854 | add edi, [coff] |
855 | |||
2384 | hidnplayr | 856 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
2288 | clevermous | 857 | test ecx, ecx |
858 | jz .next |
||
859 | .reloc_loop: |
||
2384 | hidnplayr | 860 | cmp [edi+COFF_RELOC.Type], 6 |
2288 | clevermous | 861 | jne .next_reloc |
862 | .dir_32: |
||
2384 | hidnplayr | 863 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
864 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 865 | add [eax+edx], edx |
866 | .next_reloc: |
||
867 | add edi, 10 |
||
868 | dec ecx |
||
869 | jnz .reloc_loop |
||
870 | .next: |
||
2384 | hidnplayr | 871 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 872 | dec [n_sec] |
873 | jnz .fix_sec |
||
874 | .exit: |
||
875 | ret |
||
876 | endp |
||
877 | |||
878 | ; in: edx -> COFF_SECTION struct |
||
879 | ; out: eax = alignment as mask for bits to drop |
||
880 | coff_get_align: |
||
881 | ; Rules: |
||
882 | ; - if alignment is not given, use default = 4K; |
||
883 | ; - if alignment is given and is no more than 4K, use it; |
||
884 | ; - if alignment is more than 4K, revert to 4K. |
||
885 | push ecx |
||
2384 | hidnplayr | 886 | mov cl, byte [edx+COFF_SECTION.Characteristics+2] |
2288 | clevermous | 887 | mov eax, 1 |
888 | shr cl, 4 |
||
889 | dec cl |
||
890 | js .default |
||
891 | cmp cl, 12 |
||
892 | jbe @f |
||
893 | .default: |
||
894 | mov cl, 12 |
||
895 | @@: |
||
896 | shl eax, cl |
||
897 | pop ecx |
||
898 | dec eax |
||
899 | ret |
||
900 | |||
901 | align 4 |
||
6792 | pathoswith | 902 | proc load_library stdcall, file_name:dword, encoding:dword |
6502 | pathoswith | 903 | locals |
904 | fullname dd ? |
||
905 | fileinfo rb 40 |
||
906 | coff dd ? |
||
907 | img_base dd ? |
||
908 | endl |
||
2288 | clevermous | 909 | |
910 | ; resolve file name |
||
6502 | pathoswith | 911 | stdcall kernel_alloc, maxPathLength |
912 | mov [fullname], eax |
||
6792 | pathoswith | 913 | mov edi, eax |
914 | mov esi, [file_name] |
||
915 | mov eax, [encoding] |
||
916 | push ebp |
||
917 | call getFullPath |
||
918 | pop ebp |
||
6502 | pathoswith | 919 | test eax, eax |
2288 | clevermous | 920 | jz .fail |
921 | ; scan for required DLL in list of already loaded for this process, |
||
922 | ; ignore timestamp |
||
3827 | clevermous | 923 | cli |
5130 | serge | 924 | mov esi, [current_process] |
6502 | pathoswith | 925 | mov edi, [fullname] |
5130 | serge | 926 | mov ebx, [esi+PROC.dlls_list_ptr] |
2288 | clevermous | 927 | test ebx, ebx |
928 | jz .not_in_process |
||
929 | mov esi, [ebx+HDLL.fd] |
||
930 | .scan_in_process: |
||
931 | cmp esi, ebx |
||
932 | jz .not_in_process |
||
933 | mov eax, [esi+HDLL.parent] |
||
934 | add eax, DLLDESCR.name |
||
935 | stdcall strncmp, eax, edi, -1 |
||
936 | test eax, eax |
||
937 | jnz .next_in_process |
||
938 | ; simple variant: load DLL which is already loaded in this process |
||
939 | ; just increment reference counters and return address of exports table |
||
940 | inc [esi+HDLL.refcount] |
||
941 | mov ecx, [esi+HDLL.parent] |
||
942 | inc [ecx+DLLDESCR.refcount] |
||
943 | mov eax, [ecx+DLLDESCR.exports] |
||
944 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
945 | add eax, [esi+HDLL.base] |
||
3827 | clevermous | 946 | sti |
6502 | pathoswith | 947 | push eax |
948 | stdcall kernel_free, [fullname] |
||
949 | pop eax |
||
2288 | clevermous | 950 | ret |
6502 | pathoswith | 951 | |
2288 | clevermous | 952 | .next_in_process: |
953 | mov esi, [esi+HDLL.fd] |
||
954 | jmp .scan_in_process |
||
6502 | pathoswith | 955 | |
2288 | clevermous | 956 | .not_in_process: |
957 | ; scan in full list, compare timestamp |
||
3827 | clevermous | 958 | sti |
2288 | clevermous | 959 | lea eax, [fileinfo] |
960 | stdcall get_fileinfo, edi, eax |
||
961 | test eax, eax |
||
962 | jnz .fail |
||
3827 | clevermous | 963 | cli |
2288 | clevermous | 964 | mov esi, [dll_list.fd] |
965 | .scan_for_dlls: |
||
966 | cmp esi, dll_list |
||
967 | jz .load_new |
||
968 | lea eax, [esi+DLLDESCR.name] |
||
969 | stdcall strncmp, eax, edi, -1 |
||
970 | test eax, eax |
||
971 | jnz .continue_scan |
||
972 | .test_prev_dll: |
||
973 | mov eax, dword [fileinfo+24]; last modified time |
||
974 | mov edx, dword [fileinfo+28]; last modified date |
||
975 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
976 | jnz .continue_scan |
||
977 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
978 | jz .dll_already_loaded |
||
979 | .continue_scan: |
||
980 | mov esi, [esi+DLLDESCR.fd] |
||
981 | jmp .scan_for_dlls |
||
982 | |||
983 | ; new DLL |
||
984 | .load_new: |
||
3827 | clevermous | 985 | sti |
2288 | clevermous | 986 | ; load file |
987 | stdcall load_file, edi |
||
988 | test eax, eax |
||
989 | jz .fail |
||
990 | mov [coff], eax |
||
991 | mov dword [fileinfo+32], ebx |
||
992 | |||
993 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
||
994 | mov esi, edi |
||
995 | mov ecx, -1 |
||
996 | xor eax, eax |
||
997 | repnz scasb |
||
998 | not ecx |
||
2384 | hidnplayr | 999 | lea eax, [ecx+sizeof.DLLDESCR] |
2288 | clevermous | 1000 | push ecx |
1001 | call malloc |
||
1002 | pop ecx |
||
1003 | test eax, eax |
||
1004 | jz .fail_and_free_coff |
||
1005 | ; save timestamp |
||
1006 | lea edi, [eax+DLLDESCR.name] |
||
1007 | rep movsb |
||
1008 | mov esi, eax |
||
1009 | mov eax, dword [fileinfo+24] |
||
1010 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1011 | mov eax, dword [fileinfo+28] |
||
1012 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1013 | |||
1014 | ; calculate size of loaded DLL |
||
1015 | mov edx, [coff] |
||
2384 | hidnplayr | 1016 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1017 | xor ebx, ebx |
1018 | |||
1019 | add edx, 20 |
||
1020 | @@: |
||
1021 | call coff_get_align |
||
1022 | add ebx, eax |
||
1023 | not eax |
||
1024 | and ebx, eax |
||
2384 | hidnplayr | 1025 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
1026 | add edx, sizeof.COFF_SECTION |
||
2288 | clevermous | 1027 | dec ecx |
1028 | jnz @B |
||
1029 | ; it must be nonzero and not too big |
||
1030 | mov [esi+DLLDESCR.size], ebx |
||
1031 | test ebx, ebx |
||
1032 | jz .fail_and_free_dll |
||
1033 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1034 | ja .fail_and_free_dll |
||
1035 | ; allocate memory for kernel-side image |
||
1036 | stdcall kernel_alloc, ebx |
||
1037 | test eax, eax |
||
1038 | jz .fail_and_free_dll |
||
1039 | mov [esi+DLLDESCR.data], eax |
||
1040 | ; calculate preferred base address |
||
1041 | add ebx, 0x1FFF |
||
1042 | and ebx, not 0xFFF |
||
1043 | mov ecx, [dll_cur_addr] |
||
1044 | lea edx, [ecx+ebx] |
||
1045 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1046 | jb @f |
||
1047 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1048 | lea edx, [ecx+ebx] |
||
1049 | @@: |
||
1050 | mov [esi+DLLDESCR.defaultbase], ecx |
||
1051 | mov [dll_cur_addr], edx |
||
1052 | |||
1053 | ; copy sections and set correct values for VirtualAddress'es in headers |
||
1054 | push esi |
||
1055 | mov edx, [coff] |
||
2384 | hidnplayr | 1056 | movzx ebx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1057 | mov edi, eax |
1058 | add edx, 20 |
||
1059 | cld |
||
1060 | @@: |
||
1061 | call coff_get_align |
||
1062 | add ecx, eax |
||
1063 | add edi, eax |
||
1064 | not eax |
||
1065 | and ecx, eax |
||
1066 | and edi, eax |
||
2384 | hidnplayr | 1067 | mov [edx+COFF_SECTION.VirtualAddress], ecx |
1068 | add ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1069 | mov esi, [edx+COFF_SECTION.PtrRawData] |
||
2288 | clevermous | 1070 | push ecx |
2384 | hidnplayr | 1071 | mov ecx, [edx+COFF_SECTION.SizeOfRawData] |
2288 | clevermous | 1072 | test esi, esi |
1073 | jnz .copy |
||
1074 | xor eax, eax |
||
1075 | rep stosb |
||
1076 | jmp .next |
||
1077 | .copy: |
||
1078 | add esi, [coff] |
||
1079 | rep movsb |
||
1080 | .next: |
||
1081 | pop ecx |
||
2384 | hidnplayr | 1082 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1083 | dec ebx |
1084 | jnz @B |
||
1085 | pop esi |
||
1086 | |||
1087 | ; save some additional data from COFF file |
||
1088 | ; later we will use COFF header, headers for sections and symbol table |
||
1089 | ; and also relocations table for all sections |
||
1090 | mov edx, [coff] |
||
2384 | hidnplayr | 1091 | mov ebx, [edx+COFF_HEADER.pSymTable] |
2288 | clevermous | 1092 | mov edi, dword [fileinfo+32] |
1093 | sub edi, ebx |
||
1094 | jc .fail_and_free_data |
||
1095 | mov [esi+DLLDESCR.symbols_lim], edi |
||
1096 | add ebx, edx |
||
2384 | hidnplayr | 1097 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1098 | lea ecx, [ecx*5] |
1099 | lea edi, [edi+ecx*8+20] |
||
1100 | add edx, 20 |
||
1101 | @@: |
||
2384 | hidnplayr | 1102 | movzx eax, [edx+COFF_SECTION.NumReloc] |
2288 | clevermous | 1103 | lea eax, [eax*5] |
1104 | lea edi, [edi+eax*2] |
||
2384 | hidnplayr | 1105 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1106 | sub ecx, 5 |
1107 | jnz @b |
||
1108 | stdcall kernel_alloc, edi |
||
1109 | test eax, eax |
||
1110 | jz .fail_and_free_data |
||
1111 | mov edx, [coff] |
||
2384 | hidnplayr | 1112 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1113 | lea ecx, [ecx*5] |
1114 | lea ecx, [ecx*2+5] |
||
1115 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1116 | push esi |
||
1117 | mov esi, edx |
||
1118 | mov edi, eax |
||
1119 | rep movsd |
||
1120 | pop esi |
||
1121 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1122 | push esi |
||
2384 | hidnplayr | 1123 | mov ecx, [edx+COFF_HEADER.nSymbols] |
2288 | clevermous | 1124 | mov [esi+DLLDESCR.symbols_num], ecx |
1125 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1126 | mov esi, ebx |
||
1127 | rep movsb |
||
1128 | pop esi |
||
1129 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1130 | push esi |
||
2384 | hidnplayr | 1131 | movzx eax, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1132 | lea edx, [ebx+20] |
1133 | @@: |
||
2384 | hidnplayr | 1134 | movzx ecx, [edx+COFF_SECTION.NumReloc] |
2288 | clevermous | 1135 | lea ecx, [ecx*5] |
2384 | hidnplayr | 1136 | mov esi, [edx+COFF_SECTION.PtrReloc] |
1137 | mov [edx+COFF_SECTION.PtrReloc], edi |
||
1138 | sub [edx+COFF_SECTION.PtrReloc], ebx |
||
2288 | clevermous | 1139 | add esi, [coff] |
1140 | shr ecx, 1 |
||
1141 | rep movsd |
||
1142 | adc ecx, ecx |
||
1143 | rep movsw |
||
2384 | hidnplayr | 1144 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1145 | dec eax |
1146 | jnz @b |
||
1147 | pop esi |
||
1148 | |||
1149 | ; fixup symbols |
||
1150 | mov edx, ebx |
||
2384 | hidnplayr | 1151 | mov eax, [ebx+COFF_HEADER.nSymbols] |
2288 | clevermous | 1152 | add edx, 20 |
1153 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1154 | lea ecx, [ecx*9] |
||
1155 | add ecx, ecx |
||
1156 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
1157 | |||
1158 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax, \ |
||
1159 | ecx, 0 |
||
1160 | ; test eax, eax |
||
1161 | ; jnz @F |
||
1162 | ; |
||
1163 | ;@@: |
||
1164 | |||
2384 | hidnplayr | 1165 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], szEXPORTS |
2288 | clevermous | 1166 | test eax, eax |
1167 | jnz @F |
||
1168 | |||
2384 | hidnplayr | 1169 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], sz_EXPORTS |
2288 | clevermous | 1170 | @@: |
1171 | mov [esi+DLLDESCR.exports], eax |
||
1172 | |||
1173 | ; fix relocs in the hidden copy in kernel memory to default address |
||
1174 | ; it is first fix; usually this will be enough, but second fix |
||
1175 | ; can be necessary if real load address will not equal assumption |
||
1176 | mov eax, [esi+DLLDESCR.data] |
||
1177 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1178 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
1179 | |||
1180 | stdcall kernel_free, [coff] |
||
1181 | |||
3827 | clevermous | 1182 | cli |
1183 | ; initialize DLLDESCR struct |
||
1184 | and dword [esi+DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
||
1185 | mov [esi+DLLDESCR.fd], dll_list |
||
1186 | mov eax, [dll_list.bk] |
||
1187 | mov [dll_list.bk], esi |
||
1188 | mov [esi+DLLDESCR.bk], eax |
||
1189 | mov [eax+DLLDESCR.fd], esi |
||
2288 | clevermous | 1190 | .dll_already_loaded: |
6502 | pathoswith | 1191 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1192 | inc [esi+DLLDESCR.refcount] |
1193 | push esi |
||
1194 | call init_heap |
||
1195 | pop esi |
||
1196 | mov edi, [esi+DLLDESCR.size] |
||
1197 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1198 | test eax, eax |
||
1199 | jnz @f |
||
1200 | stdcall user_alloc, edi |
||
1201 | test eax, eax |
||
1202 | jz .fail_and_dereference |
||
1203 | @@: |
||
1204 | mov [img_base], eax |
||
2384 | hidnplayr | 1205 | mov eax, sizeof.HDLL |
2288 | clevermous | 1206 | call malloc |
1207 | test eax, eax |
||
1208 | jz .fail_and_free_user |
||
1209 | mov ebx, [CURRENT_TASK] |
||
1210 | shl ebx, 5 |
||
1211 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
||
1212 | mov [eax+HDLL.pid], edx |
||
1213 | push eax |
||
1214 | call init_dlls_in_thread |
||
1215 | pop ebx |
||
1216 | test eax, eax |
||
1217 | jz .fail_and_free_user |
||
1218 | mov edx, [eax+HDLL.fd] |
||
1219 | mov [ebx+HDLL.fd], edx |
||
1220 | mov [ebx+HDLL.bk], eax |
||
1221 | mov [eax+HDLL.fd], ebx |
||
1222 | mov [edx+HDLL.bk], ebx |
||
1223 | mov eax, ebx |
||
1224 | mov ebx, [img_base] |
||
1225 | mov [eax+HDLL.base], ebx |
||
1226 | mov [eax+HDLL.size], edi |
||
1227 | mov [eax+HDLL.refcount], 1 |
||
1228 | mov [eax+HDLL.parent], esi |
||
1229 | mov edx, ebx |
||
1230 | shr edx, 12 |
||
1231 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1232 | ; copy entries of page table from kernel-side image to usermode |
||
1233 | ; use copy-on-write for user-mode image, so map as readonly |
||
1234 | xor edi, edi |
||
1235 | mov ecx, [esi+DLLDESCR.data] |
||
1236 | shr ecx, 12 |
||
1237 | .map_pages_loop: |
||
1238 | mov eax, [page_tabs+ecx*4] |
||
1239 | and eax, not 0xFFF |
||
5356 | serge | 1240 | or al, PG_UR |
2288 | clevermous | 1241 | xchg eax, [page_tabs+edx*4] |
1242 | test al, 1 |
||
1243 | jz @f |
||
1244 | call free_page |
||
1245 | @@: |
||
1246 | invlpg [ebx+edi] |
||
1247 | inc ecx |
||
1248 | inc edx |
||
1249 | add edi, 0x1000 |
||
1250 | cmp edi, [esi+DLLDESCR.size] |
||
1251 | jb .map_pages_loop |
||
1252 | |||
1253 | ; if real user-mode base is not equal to preferred base, relocate image |
||
1254 | sub ebx, [esi+DLLDESCR.defaultbase] |
||
1255 | jz @f |
||
1256 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1257 | @@: |
||
1258 | |||
1259 | mov eax, [esi+DLLDESCR.exports] |
||
1260 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1261 | add eax, [img_base] |
||
3827 | clevermous | 1262 | sti |
2288 | clevermous | 1263 | ret |
6502 | pathoswith | 1264 | |
2288 | clevermous | 1265 | .fail_and_free_data: |
1266 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1267 | .fail_and_free_dll: |
||
1268 | mov eax, esi |
||
1269 | call free |
||
1270 | .fail_and_free_coff: |
||
1271 | stdcall kernel_free, [coff] |
||
1272 | .fail: |
||
6502 | pathoswith | 1273 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1274 | xor eax, eax |
1275 | ret |
||
6502 | pathoswith | 1276 | |
2288 | clevermous | 1277 | .fail_and_free_user: |
1278 | stdcall user_free, [img_base] |
||
1279 | .fail_and_dereference: |
||
1280 | mov eax, 1 ; delete 1 reference |
||
1281 | call dereference_dll |
||
3827 | clevermous | 1282 | sti |
2288 | clevermous | 1283 | xor eax, eax |
1284 | ret |
||
1285 | endp |
||
1286 | |||
1287 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
||
1288 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1289 | ; kept in sync for all threads of one process. |
||
1290 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1291 | ; NULL if memory allocation failed |
||
1292 | init_dlls_in_thread: |
||
5130 | serge | 1293 | mov ebx, [current_process] |
1294 | mov eax, [ebx+PROC.dlls_list_ptr] |
||
2288 | clevermous | 1295 | test eax, eax |
1296 | jnz .ret |
||
5130 | serge | 1297 | |
2288 | clevermous | 1298 | mov eax, 8 |
5130 | serge | 1299 | call malloc ; FIXME |
2288 | clevermous | 1300 | test eax, eax |
1301 | jz .ret |
||
5130 | serge | 1302 | |
2288 | clevermous | 1303 | mov [eax], eax |
1304 | mov [eax+4], eax |
||
5130 | serge | 1305 | |
1306 | mov ebx, [current_process] |
||
1307 | mov [ebx+PROC.dlls_list_ptr], eax |
||
2288 | clevermous | 1308 | .ret: |
1309 | ret |
||
1310 | |||
1311 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
||
1312 | dereference_dll: |
||
1313 | sub [esi+DLLDESCR.refcount], eax |
||
1314 | jnz .ret |
||
1315 | mov eax, [esi+DLLDESCR.fd] |
||
1316 | mov edx, [esi+DLLDESCR.bk] |
||
1317 | mov [eax+DLLDESCR.bk], edx |
||
1318 | mov [edx+DLLDESCR.fd], eax |
||
1319 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
||
1320 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1321 | mov eax, esi |
||
1322 | call free |
||
1323 | .ret: |
||
1324 | ret |
||
1325 | |||
1326 | destroy_hdll: |
||
1327 | push ebx ecx esi edi |
||
1328 | mov ebx, [eax+HDLL.base] |
||
1329 | mov esi, [eax+HDLL.parent] |
||
1330 | mov edx, [esi+DLLDESCR.size] |
||
5130 | serge | 1331 | |
2288 | clevermous | 1332 | push eax |
1333 | mov esi, [eax+HDLL.parent] |
||
1334 | mov eax, [eax+HDLL.refcount] |
||
1335 | call dereference_dll |
||
1336 | pop eax |
||
1337 | mov edx, [eax+HDLL.bk] |
||
1338 | mov ebx, [eax+HDLL.fd] |
||
1339 | mov [ebx+HDLL.bk], edx |
||
1340 | mov [edx+HDLL.fd], ebx |
||
1341 | call free |
||
1342 | pop edi esi ecx ebx |
||
1343 | ret |
||
1344 | |||
1345 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
||
1346 | destroy_all_hdlls: |
||
1347 | test esi, esi |
||
1348 | jz .ret |
||
1349 | .loop: |
||
1350 | mov eax, [esi+HDLL.fd] |
||
1351 | cmp eax, esi |
||
1352 | jz free |
||
1353 | call destroy_hdll |
||
1354 | jmp .loop |
||
1355 | .ret: |
||
1356 | ret |
||
1357 | |||
1358 | align 4 |
||
1359 | stop_all_services: |
||
1360 | push ebp |
||
1361 | mov edx, [srv.fd] |
||
1362 | .next: |
||
2384 | hidnplayr | 1363 | cmp edx, srv.fd-SRV.fd |
2288 | clevermous | 1364 | je .done |
1365 | cmp [edx+SRV.magic], ' SRV' |
||
1366 | jne .next |
||
2384 | hidnplayr | 1367 | cmp [edx+SRV.size], sizeof.SRV |
2288 | clevermous | 1368 | jne .next |
1369 | |||
1370 | mov ebx, [edx+SRV.entry] |
||
1371 | mov edx, [edx+SRV.fd] |
||
1372 | test ebx, ebx |
||
1373 | jz .next |
||
1374 | |||
1375 | push edx |
||
1376 | mov ebp, esp |
||
1377 | push 0 |
||
1378 | push -1 |
||
1379 | call ebx |
||
1380 | mov esp, ebp |
||
1381 | pop edx |
||
1382 | jmp .next |
||
1383 | .done: |
||
1384 | pop ebp |
||
1385 | ret |
||
1386 | |||
1387 | ; param |
||
1388 | ; eax= size |
||
1389 | ; ebx= pid |
||
1390 | |||
1391 | align 4 |
||
1392 | create_kernel_object: |
||
1393 | |||
1394 | push ebx |
||
1395 | call malloc |
||
1396 | pop ebx |
||
1397 | test eax, eax |
||
1398 | jz .fail |
||
1399 | |||
1400 | mov ecx, [current_slot] |
||
1401 | add ecx, APP_OBJ_OFFSET |
||
1402 | |||
1403 | pushfd |
||
1404 | cli |
||
1405 | mov edx, [ecx+APPOBJ.fd] |
||
1406 | mov [eax+APPOBJ.fd], edx |
||
1407 | mov [eax+APPOBJ.bk], ecx |
||
1408 | mov [eax+APPOBJ.pid], ebx |
||
1409 | |||
1410 | mov [ecx+APPOBJ.fd], eax |
||
1411 | mov [edx+APPOBJ.bk], eax |
||
1412 | popfd |
||
1413 | .fail: |
||
1414 | ret |
||
1415 | |||
1416 | ; param |
||
1417 | ; eax= object |
||
1418 | |||
1419 | align 4 |
||
1420 | destroy_kernel_object: |
||
1421 | |||
1422 | pushfd |
||
1423 | cli |
||
1424 | mov ebx, [eax+APPOBJ.fd] |
||
1425 | mov ecx, [eax+APPOBJ.bk] |
||
1426 | mov [ebx+APPOBJ.bk], ecx |
||
1427 | mov [ecx+APPOBJ.fd], ebx |
||
1428 | popfd |
||
1429 | |||
1430 | xor edx, edx ;clear common header |
||
1431 | mov [eax], edx |
||
1432 | mov [eax+4], edx |
||
1433 | mov [eax+8], edx |
||
1434 | mov [eax+12], edx |
||
1435 | mov [eax+16], edx |
||
1436 | |||
1437 | call free ;release object memory |
||
1438 | ret |
||
5595 | serge | 1439 | |
1440 | ; param |
||
1441 | ; ecx= size |
||
1442 | |||
1443 | align 4 |
||
1444 | create_object: |
||
1445 | |||
1446 | push esi |
||
1447 | push edi |
||
1448 | pushfd |
||
1449 | cli |
||
1450 | |||
1451 | mov esi, [current_process] |
||
1452 | mov eax, [esi+PROC.ht_free] |
||
1453 | mov edi, [esi+PROC.ht_next] |
||
1454 | dec eax |
||
1455 | js .err0 |
||
1456 | |||
1457 | mov [esi+PROC.ht_free], eax |
||
1458 | mov eax, [esi+PROC.htab+edi*4] |
||
1459 | mov [esi+PROC.ht_next], eax |
||
1460 | popfd |
||
1461 | |||
1462 | mov eax, ecx |
||
1463 | call malloc |
||
1464 | test eax, eax |
||
1465 | jz .err1 |
||
1466 | |||
1467 | mov [eax+FUTEX.handle], edi |
||
1468 | mov [esi+PROC.htab+edi*4], eax |
||
1469 | pop edi |
||
1470 | pop esi |
||
1471 | ret |
||
1472 | |||
1473 | .err1: |
||
1474 | pushfd |
||
1475 | cli |
||
1476 | |||
1477 | mov eax, [esi+PROC.ht_next] |
||
1478 | mov [esi+PROC.htab+edi*4], eax |
||
1479 | mov [esi+PROC.ht_next], edi |
||
1480 | inc [esi+PROC.ht_free] |
||
1481 | .err0: |
||
1482 | popfd |
||
1483 | pop edi |
||
1484 | pop esi |
||
1485 | xor eax, eax |
||
1486 | ret |
||
1487 |