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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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7965 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2020. 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: 9034 $ |
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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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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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8869 | rgimad | 357 | mov eax, [current_slot_idx] |
2288 | clevermous | 358 | shl eax, 8 |
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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8680 | rgimad | 388 | pushad |
389 | cld |
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390 | call protect_from_terminate |
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391 | call file_system_lfn |
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392 | call unprotect_from_terminate |
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393 | popad |
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2288 | clevermous | 394 | ret |
395 | endp |
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396 | |||
397 | align 4 |
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398 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
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399 | bytes:dword |
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400 | locals |
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401 | cmd dd ? |
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402 | offset dd ? |
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403 | dd ? |
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404 | count dd ? |
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405 | buff dd ? |
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406 | db ? |
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407 | name dd ? |
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408 | endl |
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409 | |||
410 | xor eax, eax |
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411 | mov ebx, [file_name] |
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412 | mov ecx, [off] |
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413 | mov edx, [bytes] |
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414 | mov esi, [buffer] |
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415 | |||
416 | mov [cmd], eax |
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417 | mov [offset], ecx |
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418 | mov [offset+4], eax |
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419 | mov [count], edx |
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420 | mov [buff], esi |
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421 | mov byte [buff+4], al |
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422 | mov [name], ebx |
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423 | |||
424 | pushad |
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425 | lea ebx, [cmd] |
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3296 | clevermous | 426 | call file_system_lfn_protected |
2288 | clevermous | 427 | popad |
428 | ret |
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429 | endp |
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430 | |||
9034 | Boppan | 431 | align 4 |
432 | ; @brief Allocate kernel memory and loads the specified file |
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2288 | clevermous | 433 | ; |
9034 | Boppan | 434 | ; @param file_name Path to file |
2288 | clevermous | 435 | ; |
9034 | Boppan | 436 | ; @returns File image in kernel memory in `eax` and size of file in `ebx` |
2288 | clevermous | 437 | ; |
9034 | Boppan | 438 | ; @warning You must call kernel_free() to delete each file loaded by the |
439 | ; load_file() function |
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2288 | clevermous | 440 | proc load_file stdcall, file_name:dword |
441 | locals |
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442 | attr dd ? |
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443 | flags dd ? |
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444 | cr_time dd ? |
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445 | cr_date dd ? |
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446 | acc_time dd ? |
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447 | acc_date dd ? |
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448 | mod_time dd ? |
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449 | mod_date dd ? |
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450 | file_size dd ? |
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451 | |||
452 | file dd ? |
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453 | file2 dd ? |
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454 | endl |
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455 | |||
456 | push esi |
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457 | push edi |
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458 | |||
459 | lea eax, [attr] |
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460 | stdcall get_fileinfo, [file_name], eax |
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461 | test eax, eax |
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462 | jnz .fail |
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463 | |||
464 | mov eax, [file_size] |
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465 | cmp eax, 1024*1024*16 |
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466 | ja .fail |
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467 | |||
468 | stdcall kernel_alloc, [file_size] |
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469 | mov [file], eax |
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470 | test eax, eax |
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471 | jz .fail |
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472 | |||
473 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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474 | cmp ebx, [file_size] |
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475 | jne .cleanup |
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476 | |||
477 | mov eax, [file] |
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7122 | dunkaist | 478 | cmp dword [eax], 'KPCK' |
2288 | clevermous | 479 | jne .exit |
480 | mov ebx, [eax+4] |
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481 | mov [file_size], ebx |
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482 | stdcall kernel_alloc, ebx |
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483 | |||
484 | test eax, eax |
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485 | jz .cleanup |
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486 | |||
487 | mov [file2], eax |
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2486 | mario79 | 488 | |
2500 | mario79 | 489 | pushad |
2489 | mario79 | 490 | mov ecx, unpack_mutex |
491 | call mutex_lock |
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2500 | mario79 | 492 | popad |
2486 | mario79 | 493 | |
2288 | clevermous | 494 | stdcall unpack, [file], eax |
2486 | mario79 | 495 | |
2500 | mario79 | 496 | pushad |
497 | mov ecx, unpack_mutex |
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2489 | mario79 | 498 | call mutex_unlock |
2500 | mario79 | 499 | popad |
2486 | mario79 | 500 | |
2288 | clevermous | 501 | stdcall kernel_free, [file] |
502 | mov eax, [file2] |
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503 | mov ebx, [file_size] |
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504 | .exit: |
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505 | push eax |
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506 | lea edi, [eax+ebx] ;cleanup remain space |
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507 | mov ecx, 4096 ;from file end |
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508 | and ebx, 4095 |
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509 | jz @f |
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510 | sub ecx, ebx |
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511 | xor eax, eax |
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512 | cld |
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513 | rep stosb |
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514 | @@: |
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515 | mov ebx, [file_size] |
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516 | pop eax |
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517 | pop edi |
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518 | pop esi |
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519 | ret |
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520 | .cleanup: |
||
521 | stdcall kernel_free, [file] |
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522 | .fail: |
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523 | xor eax, eax |
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524 | xor ebx, ebx |
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525 | pop edi |
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526 | pop esi |
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527 | ret |
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528 | endp |
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529 | |||
3786 | Serge | 530 | ; description |
531 | ; allocate user memory and loads the specified file |
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532 | ; |
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533 | ; param |
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534 | ; file_name= path to file |
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535 | ; |
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536 | ; retval |
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537 | ; eax= file image in user memory |
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538 | ; ebx= size of file |
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539 | ; |
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540 | ; warging |
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541 | ; You mast call kernel_free() to delete each file |
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542 | ; loaded by the load_file() function |
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543 | |||
544 | align 4 |
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545 | proc load_file_umode stdcall, file_name:dword |
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546 | locals |
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547 | attr dd ? |
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548 | flags dd ? |
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549 | cr_time dd ? |
||
550 | cr_date dd ? |
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551 | acc_time dd ? |
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552 | acc_date dd ? |
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553 | mod_time dd ? |
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554 | mod_date dd ? |
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555 | file_size dd ? |
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556 | |||
557 | km_file dd ? |
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558 | um_file dd ? |
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559 | endl |
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560 | |||
561 | push esi |
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562 | push edi |
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563 | push ebx |
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564 | |||
565 | lea eax, [attr] |
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566 | stdcall get_fileinfo, [file_name], eax ;find file and get info |
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567 | test eax, eax |
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568 | jnz .err_1 |
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569 | |||
570 | mov eax, [file_size] |
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571 | cmp eax, 1024*1024*16 ;to be enough for anybody (c) |
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572 | ja .err_1 |
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573 | ;it is very likely that the file is packed |
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574 | stdcall kernel_alloc, [file_size] ;with kpack, so allocate memory from kernel heap |
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575 | mov [km_file], eax |
||
576 | test eax, eax |
||
577 | jz .err_1 |
||
578 | |||
579 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
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580 | cmp ebx, [file_size] |
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581 | |||
582 | jne .err_2 |
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583 | |||
584 | mov eax, [km_file] |
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7122 | dunkaist | 585 | cmp dword [eax], 'KPCK' ; check kpack signature |
3786 | Serge | 586 | jne .raw_file |
587 | |||
588 | mov ebx, [eax+4] ;get real size of file |
||
589 | mov [file_size], ebx |
||
4237 | Serge | 590 | stdcall user_alloc, ebx ;and allocate space from user heap |
3786 | Serge | 591 | mov [um_file], eax |
592 | test eax, eax |
||
593 | jz .err_2 |
||
594 | |||
4237 | Serge | 595 | mov edx, [file_size] ;preallocate page memory |
596 | shr eax, 10 |
||
597 | lea edi, [page_tabs+eax] |
||
598 | add edx, 4095 |
||
599 | shr edx, 12 |
||
600 | @@: |
||
601 | call alloc_page |
||
602 | test eax, eax |
||
603 | jz .err_3 |
||
604 | |||
5356 | serge | 605 | or eax, PG_UWR |
4237 | Serge | 606 | stosd |
607 | dec edx |
||
608 | jnz @B |
||
609 | |||
3786 | Serge | 610 | pushad |
611 | mov ecx, unpack_mutex |
||
612 | call mutex_lock |
||
613 | |||
614 | stdcall unpack, [km_file], [um_file] |
||
615 | |||
616 | mov ecx, unpack_mutex |
||
617 | call mutex_unlock |
||
618 | popad |
||
619 | |||
620 | stdcall kernel_free, [km_file] ;we don't need packed file anymore |
||
621 | .exit: |
||
4237 | Serge | 622 | |
623 | mov edi, [um_file] |
||
624 | mov esi, [um_file] |
||
625 | mov eax, [file_size] |
||
626 | mov edx, eax |
||
627 | |||
628 | add edi, eax ;cleanup remain space |
||
629 | mov ecx, 4096 ;from file end |
||
630 | and eax, 4095 |
||
631 | jz @f |
||
632 | sub ecx, eax |
||
633 | xor eax, eax |
||
634 | cld |
||
635 | rep stosb |
||
636 | @@: |
||
3786 | Serge | 637 | mov eax, [um_file] |
638 | |||
639 | pop ebx |
||
640 | pop edi |
||
641 | pop esi |
||
642 | ret |
||
643 | |||
644 | .raw_file: ; sometimes we load unpacked file |
||
645 | stdcall user_alloc, ebx ; allocate space from user heap |
||
646 | mov [um_file], eax |
||
647 | |||
648 | test eax, eax |
||
649 | jz .err_2 |
||
650 | |||
651 | shr eax, 10 ; and remap pages. |
||
652 | |||
653 | mov ecx, [file_size] |
||
654 | add ecx, 4095 |
||
655 | shr ecx, 12 |
||
656 | |||
657 | mov esi, [km_file] |
||
658 | shr esi, 10 |
||
659 | add esi, page_tabs |
||
660 | |||
661 | lea edi, [page_tabs+eax] |
||
662 | |||
663 | cld |
||
664 | @@: |
||
665 | lodsd |
||
666 | and eax, 0xFFFFF000 |
||
5356 | serge | 667 | or eax, PG_UWR |
3786 | Serge | 668 | stosd |
669 | loop @B |
||
670 | |||
671 | stdcall free_kernel_space, [km_file] ; release allocated kernel space |
||
672 | jmp .exit ; physical pages still in use |
||
4237 | Serge | 673 | .err_3: |
674 | stdcall user_free, [um_file] |
||
3786 | Serge | 675 | .err_2: |
676 | stdcall kernel_free, [km_file] |
||
677 | .err_1: |
||
678 | xor eax, eax |
||
679 | xor edx, edx |
||
680 | |||
681 | pop ebx |
||
682 | pop edi |
||
683 | pop esi |
||
684 | ret |
||
685 | endp |
||
686 | |||
687 | |||
2489 | mario79 | 688 | uglobal |
2288 | clevermous | 689 | align 4 |
2489 | mario79 | 690 | unpack_mutex MUTEX |
2486 | mario79 | 691 | endg |
692 | |||
693 | align 4 |
||
3761 | clevermous | 694 | proc get_proc_ex stdcall uses ebx esi, proc_name:dword, imports:dword |
695 | mov ebx, [imports] |
||
696 | test ebx, ebx |
||
697 | jz .end |
||
698 | xor esi, esi |
||
2288 | clevermous | 699 | .look_up: |
700 | |||
3761 | clevermous | 701 | mov eax, [ebx+32] |
702 | mov eax, [OS_BASE+eax+esi*4] |
||
703 | add eax, OS_BASE |
||
2288 | clevermous | 704 | stdcall strncmp, eax, [proc_name], 256 |
705 | test eax, eax |
||
706 | jz .ok |
||
707 | |||
3761 | clevermous | 708 | inc esi |
709 | cmp esi, [ebx+24] |
||
710 | jb .look_up |
||
2288 | clevermous | 711 | .end: |
712 | xor eax, eax |
||
713 | ret |
||
3761 | clevermous | 714 | .ok: |
715 | mov eax, [ebx+28] |
||
716 | mov eax, [OS_BASE+eax+esi*4] |
||
717 | add eax, OS_BASE |
||
718 | ret |
||
2288 | clevermous | 719 | endp |
720 | |||
721 | align 4 |
||
722 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
||
723 | sym_count:dword, strings:dword, imports:dword |
||
724 | locals |
||
725 | retval dd ? |
||
726 | endl |
||
727 | |||
728 | mov edi, [symbols] |
||
729 | mov [retval], 1 |
||
730 | .fix: |
||
2384 | hidnplayr | 731 | movzx ebx, [edi+COFF_SYM.SectionNumber] |
2288 | clevermous | 732 | test ebx, ebx |
733 | jnz .internal |
||
2384 | hidnplayr | 734 | mov eax, dword [edi+COFF_SYM.Name] |
2288 | clevermous | 735 | test eax, eax |
736 | jnz @F |
||
737 | |||
738 | mov edi, [edi+4] |
||
739 | add edi, [strings] |
||
740 | @@: |
||
741 | push edi |
||
742 | stdcall get_proc_ex, edi, [imports] |
||
743 | pop edi |
||
744 | |||
745 | xor ebx, ebx |
||
746 | test eax, eax |
||
747 | jnz @F |
||
748 | |||
5998 | veliant | 749 | ; disable debug msg |
750 | ;mov esi, msg_unresolved |
||
751 | ;call sys_msg_board_str |
||
752 | ;mov esi, edi |
||
753 | ;call sys_msg_board_str |
||
754 | ;mov esi, msg_CR |
||
755 | ;call sys_msg_board_str |
||
2288 | clevermous | 756 | |
757 | mov [retval], 0 |
||
758 | @@: |
||
759 | mov edi, [symbols] |
||
2384 | hidnplayr | 760 | mov [edi+COFF_SYM.Value], eax |
2288 | clevermous | 761 | jmp .next |
762 | .internal: |
||
763 | cmp bx, -1 |
||
764 | je .next |
||
765 | cmp bx, -2 |
||
766 | je .next |
||
767 | |||
768 | dec ebx |
||
769 | shl ebx, 3 |
||
770 | lea ebx, [ebx+ebx*4] |
||
771 | add ebx, [sec] |
||
772 | |||
2384 | hidnplayr | 773 | mov eax, [ebx+COFF_SECTION.VirtualAddress] |
774 | add [edi+COFF_SYM.Value], eax |
||
2288 | clevermous | 775 | .next: |
2384 | hidnplayr | 776 | add edi, sizeof.COFF_SYM |
2288 | clevermous | 777 | mov [symbols], edi |
778 | dec [sym_count] |
||
779 | jnz .fix |
||
780 | mov eax, [retval] |
||
781 | ret |
||
782 | endp |
||
783 | |||
784 | align 4 |
||
785 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
786 | delta:dword |
||
787 | locals |
||
788 | n_sec dd ? |
||
789 | endl |
||
790 | |||
791 | mov eax, [coff] |
||
2384 | hidnplayr | 792 | movzx ebx, [eax+COFF_HEADER.nSections] |
2288 | clevermous | 793 | mov [n_sec], ebx |
794 | lea esi, [eax+20] |
||
795 | .fix_sec: |
||
2384 | hidnplayr | 796 | mov edi, [esi+COFF_SECTION.PtrReloc] |
2288 | clevermous | 797 | add edi, [coff] |
798 | |||
2384 | hidnplayr | 799 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
2288 | clevermous | 800 | test ecx, ecx |
801 | jz .next |
||
802 | .reloc_loop: |
||
2384 | hidnplayr | 803 | mov ebx, [edi+COFF_RELOC.SymIndex] |
2288 | clevermous | 804 | add ebx, ebx |
805 | lea ebx, [ebx+ebx*8] |
||
806 | add ebx, [sym] |
||
807 | |||
2384 | hidnplayr | 808 | mov edx, [ebx+COFF_SYM.Value] |
2288 | clevermous | 809 | |
2384 | hidnplayr | 810 | cmp [edi+COFF_RELOC.Type], 6 |
2288 | clevermous | 811 | je .dir_32 |
812 | |||
2384 | hidnplayr | 813 | cmp [edi+COFF_RELOC.Type], 20 |
2288 | clevermous | 814 | jne .next_reloc |
815 | .rel_32: |
||
2384 | hidnplayr | 816 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
817 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 818 | sub edx, eax |
819 | sub edx, 4 |
||
820 | jmp .fix |
||
821 | .dir_32: |
||
2384 | hidnplayr | 822 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
823 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 824 | .fix: |
825 | add eax, [delta] |
||
826 | add [eax], edx |
||
827 | .next_reloc: |
||
828 | add edi, 10 |
||
829 | dec ecx |
||
830 | jnz .reloc_loop |
||
831 | .next: |
||
2384 | hidnplayr | 832 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 833 | dec [n_sec] |
834 | jnz .fix_sec |
||
835 | .exit: |
||
836 | ret |
||
837 | endp |
||
838 | |||
839 | align 4 |
||
840 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
||
841 | delta:dword |
||
842 | locals |
||
843 | n_sec dd ? |
||
844 | endl |
||
845 | |||
846 | mov eax, [coff] |
||
2384 | hidnplayr | 847 | movzx ebx, [eax+COFF_HEADER.nSections] |
2288 | clevermous | 848 | mov [n_sec], ebx |
849 | lea esi, [eax+20] |
||
850 | mov edx, [delta] |
||
851 | .fix_sec: |
||
2384 | hidnplayr | 852 | mov edi, [esi+COFF_SECTION.PtrReloc] |
2288 | clevermous | 853 | add edi, [coff] |
854 | |||
2384 | hidnplayr | 855 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
2288 | clevermous | 856 | test ecx, ecx |
857 | jz .next |
||
858 | .reloc_loop: |
||
2384 | hidnplayr | 859 | cmp [edi+COFF_RELOC.Type], 6 |
2288 | clevermous | 860 | jne .next_reloc |
861 | .dir_32: |
||
2384 | hidnplayr | 862 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
863 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
2288 | clevermous | 864 | add [eax+edx], edx |
865 | .next_reloc: |
||
866 | add edi, 10 |
||
867 | dec ecx |
||
868 | jnz .reloc_loop |
||
869 | .next: |
||
2384 | hidnplayr | 870 | add esi, sizeof.COFF_SECTION |
2288 | clevermous | 871 | dec [n_sec] |
872 | jnz .fix_sec |
||
873 | .exit: |
||
874 | ret |
||
875 | endp |
||
876 | |||
877 | ; in: edx -> COFF_SECTION struct |
||
878 | ; out: eax = alignment as mask for bits to drop |
||
879 | coff_get_align: |
||
880 | ; Rules: |
||
881 | ; - if alignment is not given, use default = 4K; |
||
882 | ; - if alignment is given and is no more than 4K, use it; |
||
883 | ; - if alignment is more than 4K, revert to 4K. |
||
884 | push ecx |
||
2384 | hidnplayr | 885 | mov cl, byte [edx+COFF_SECTION.Characteristics+2] |
2288 | clevermous | 886 | mov eax, 1 |
887 | shr cl, 4 |
||
888 | dec cl |
||
889 | js .default |
||
890 | cmp cl, 12 |
||
891 | jbe @f |
||
892 | .default: |
||
893 | mov cl, 12 |
||
894 | @@: |
||
895 | shl eax, cl |
||
896 | pop ecx |
||
897 | dec eax |
||
898 | ret |
||
899 | |||
900 | align 4 |
||
6792 | pathoswith | 901 | proc load_library stdcall, file_name:dword, encoding:dword |
6502 | pathoswith | 902 | locals |
903 | fullname dd ? |
||
904 | fileinfo rb 40 |
||
905 | coff dd ? |
||
906 | img_base dd ? |
||
907 | endl |
||
2288 | clevermous | 908 | |
909 | ; resolve file name |
||
6502 | pathoswith | 910 | stdcall kernel_alloc, maxPathLength |
911 | mov [fullname], eax |
||
6792 | pathoswith | 912 | mov edi, eax |
913 | mov esi, [file_name] |
||
914 | mov eax, [encoding] |
||
915 | push ebp |
||
916 | call getFullPath |
||
917 | pop ebp |
||
6502 | pathoswith | 918 | test eax, eax |
2288 | clevermous | 919 | jz .fail |
920 | ; scan for required DLL in list of already loaded for this process, |
||
921 | ; ignore timestamp |
||
3827 | clevermous | 922 | cli |
5130 | serge | 923 | mov esi, [current_process] |
6502 | pathoswith | 924 | mov edi, [fullname] |
5130 | serge | 925 | mov ebx, [esi+PROC.dlls_list_ptr] |
2288 | clevermous | 926 | test ebx, ebx |
927 | jz .not_in_process |
||
928 | mov esi, [ebx+HDLL.fd] |
||
929 | .scan_in_process: |
||
930 | cmp esi, ebx |
||
931 | jz .not_in_process |
||
932 | mov eax, [esi+HDLL.parent] |
||
933 | add eax, DLLDESCR.name |
||
934 | stdcall strncmp, eax, edi, -1 |
||
935 | test eax, eax |
||
936 | jnz .next_in_process |
||
937 | ; simple variant: load DLL which is already loaded in this process |
||
938 | ; just increment reference counters and return address of exports table |
||
939 | inc [esi+HDLL.refcount] |
||
940 | mov ecx, [esi+HDLL.parent] |
||
941 | inc [ecx+DLLDESCR.refcount] |
||
942 | mov eax, [ecx+DLLDESCR.exports] |
||
943 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
944 | add eax, [esi+HDLL.base] |
||
3827 | clevermous | 945 | sti |
6502 | pathoswith | 946 | push eax |
947 | stdcall kernel_free, [fullname] |
||
948 | pop eax |
||
2288 | clevermous | 949 | ret |
6502 | pathoswith | 950 | |
2288 | clevermous | 951 | .next_in_process: |
952 | mov esi, [esi+HDLL.fd] |
||
953 | jmp .scan_in_process |
||
6502 | pathoswith | 954 | |
2288 | clevermous | 955 | .not_in_process: |
956 | ; scan in full list, compare timestamp |
||
3827 | clevermous | 957 | sti |
2288 | clevermous | 958 | lea eax, [fileinfo] |
959 | stdcall get_fileinfo, edi, eax |
||
960 | test eax, eax |
||
961 | jnz .fail |
||
3827 | clevermous | 962 | cli |
2288 | clevermous | 963 | mov esi, [dll_list.fd] |
964 | .scan_for_dlls: |
||
965 | cmp esi, dll_list |
||
966 | jz .load_new |
||
967 | lea eax, [esi+DLLDESCR.name] |
||
968 | stdcall strncmp, eax, edi, -1 |
||
969 | test eax, eax |
||
970 | jnz .continue_scan |
||
971 | .test_prev_dll: |
||
972 | mov eax, dword [fileinfo+24]; last modified time |
||
973 | mov edx, dword [fileinfo+28]; last modified date |
||
974 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
975 | jnz .continue_scan |
||
976 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
977 | jz .dll_already_loaded |
||
978 | .continue_scan: |
||
979 | mov esi, [esi+DLLDESCR.fd] |
||
980 | jmp .scan_for_dlls |
||
981 | |||
982 | ; new DLL |
||
983 | .load_new: |
||
3827 | clevermous | 984 | sti |
2288 | clevermous | 985 | ; load file |
986 | stdcall load_file, edi |
||
987 | test eax, eax |
||
988 | jz .fail |
||
989 | mov [coff], eax |
||
990 | mov dword [fileinfo+32], ebx |
||
991 | |||
992 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
||
993 | mov esi, edi |
||
994 | mov ecx, -1 |
||
995 | xor eax, eax |
||
996 | repnz scasb |
||
997 | not ecx |
||
2384 | hidnplayr | 998 | lea eax, [ecx+sizeof.DLLDESCR] |
2288 | clevermous | 999 | push ecx |
1000 | call malloc |
||
1001 | pop ecx |
||
1002 | test eax, eax |
||
1003 | jz .fail_and_free_coff |
||
1004 | ; save timestamp |
||
1005 | lea edi, [eax+DLLDESCR.name] |
||
1006 | rep movsb |
||
1007 | mov esi, eax |
||
1008 | mov eax, dword [fileinfo+24] |
||
1009 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1010 | mov eax, dword [fileinfo+28] |
||
1011 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1012 | |||
1013 | ; calculate size of loaded DLL |
||
1014 | mov edx, [coff] |
||
2384 | hidnplayr | 1015 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1016 | xor ebx, ebx |
1017 | |||
1018 | add edx, 20 |
||
1019 | @@: |
||
1020 | call coff_get_align |
||
1021 | add ebx, eax |
||
1022 | not eax |
||
1023 | and ebx, eax |
||
2384 | hidnplayr | 1024 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
1025 | add edx, sizeof.COFF_SECTION |
||
2288 | clevermous | 1026 | dec ecx |
1027 | jnz @B |
||
1028 | ; it must be nonzero and not too big |
||
1029 | mov [esi+DLLDESCR.size], ebx |
||
1030 | test ebx, ebx |
||
1031 | jz .fail_and_free_dll |
||
1032 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1033 | ja .fail_and_free_dll |
||
1034 | ; allocate memory for kernel-side image |
||
1035 | stdcall kernel_alloc, ebx |
||
1036 | test eax, eax |
||
1037 | jz .fail_and_free_dll |
||
1038 | mov [esi+DLLDESCR.data], eax |
||
1039 | ; calculate preferred base address |
||
1040 | add ebx, 0x1FFF |
||
1041 | and ebx, not 0xFFF |
||
1042 | mov ecx, [dll_cur_addr] |
||
1043 | lea edx, [ecx+ebx] |
||
1044 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1045 | jb @f |
||
1046 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1047 | lea edx, [ecx+ebx] |
||
1048 | @@: |
||
1049 | mov [esi+DLLDESCR.defaultbase], ecx |
||
1050 | mov [dll_cur_addr], edx |
||
1051 | |||
1052 | ; copy sections and set correct values for VirtualAddress'es in headers |
||
1053 | push esi |
||
1054 | mov edx, [coff] |
||
2384 | hidnplayr | 1055 | movzx ebx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1056 | mov edi, eax |
1057 | add edx, 20 |
||
1058 | cld |
||
1059 | @@: |
||
1060 | call coff_get_align |
||
1061 | add ecx, eax |
||
1062 | add edi, eax |
||
1063 | not eax |
||
1064 | and ecx, eax |
||
1065 | and edi, eax |
||
2384 | hidnplayr | 1066 | mov [edx+COFF_SECTION.VirtualAddress], ecx |
1067 | add ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1068 | mov esi, [edx+COFF_SECTION.PtrRawData] |
||
2288 | clevermous | 1069 | push ecx |
2384 | hidnplayr | 1070 | mov ecx, [edx+COFF_SECTION.SizeOfRawData] |
2288 | clevermous | 1071 | test esi, esi |
1072 | jnz .copy |
||
1073 | xor eax, eax |
||
1074 | rep stosb |
||
1075 | jmp .next |
||
1076 | .copy: |
||
1077 | add esi, [coff] |
||
1078 | rep movsb |
||
1079 | .next: |
||
1080 | pop ecx |
||
2384 | hidnplayr | 1081 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1082 | dec ebx |
1083 | jnz @B |
||
1084 | pop esi |
||
1085 | |||
1086 | ; save some additional data from COFF file |
||
1087 | ; later we will use COFF header, headers for sections and symbol table |
||
1088 | ; and also relocations table for all sections |
||
1089 | mov edx, [coff] |
||
2384 | hidnplayr | 1090 | mov ebx, [edx+COFF_HEADER.pSymTable] |
2288 | clevermous | 1091 | mov edi, dword [fileinfo+32] |
1092 | sub edi, ebx |
||
1093 | jc .fail_and_free_data |
||
1094 | mov [esi+DLLDESCR.symbols_lim], edi |
||
1095 | add ebx, edx |
||
2384 | hidnplayr | 1096 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1097 | lea ecx, [ecx*5] |
1098 | lea edi, [edi+ecx*8+20] |
||
1099 | add edx, 20 |
||
1100 | @@: |
||
2384 | hidnplayr | 1101 | movzx eax, [edx+COFF_SECTION.NumReloc] |
2288 | clevermous | 1102 | lea eax, [eax*5] |
1103 | lea edi, [edi+eax*2] |
||
2384 | hidnplayr | 1104 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1105 | sub ecx, 5 |
1106 | jnz @b |
||
1107 | stdcall kernel_alloc, edi |
||
1108 | test eax, eax |
||
1109 | jz .fail_and_free_data |
||
1110 | mov edx, [coff] |
||
2384 | hidnplayr | 1111 | movzx ecx, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1112 | lea ecx, [ecx*5] |
1113 | lea ecx, [ecx*2+5] |
||
1114 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1115 | push esi |
||
1116 | mov esi, edx |
||
1117 | mov edi, eax |
||
1118 | rep movsd |
||
1119 | pop esi |
||
1120 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1121 | push esi |
||
2384 | hidnplayr | 1122 | mov ecx, [edx+COFF_HEADER.nSymbols] |
2288 | clevermous | 1123 | mov [esi+DLLDESCR.symbols_num], ecx |
1124 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1125 | mov esi, ebx |
||
1126 | rep movsb |
||
1127 | pop esi |
||
1128 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1129 | push esi |
||
2384 | hidnplayr | 1130 | movzx eax, [edx+COFF_HEADER.nSections] |
2288 | clevermous | 1131 | lea edx, [ebx+20] |
1132 | @@: |
||
2384 | hidnplayr | 1133 | movzx ecx, [edx+COFF_SECTION.NumReloc] |
2288 | clevermous | 1134 | lea ecx, [ecx*5] |
2384 | hidnplayr | 1135 | mov esi, [edx+COFF_SECTION.PtrReloc] |
1136 | mov [edx+COFF_SECTION.PtrReloc], edi |
||
1137 | sub [edx+COFF_SECTION.PtrReloc], ebx |
||
2288 | clevermous | 1138 | add esi, [coff] |
1139 | shr ecx, 1 |
||
1140 | rep movsd |
||
1141 | adc ecx, ecx |
||
1142 | rep movsw |
||
2384 | hidnplayr | 1143 | add edx, sizeof.COFF_SECTION |
2288 | clevermous | 1144 | dec eax |
1145 | jnz @b |
||
1146 | pop esi |
||
1147 | |||
1148 | ; fixup symbols |
||
1149 | mov edx, ebx |
||
2384 | hidnplayr | 1150 | mov eax, [ebx+COFF_HEADER.nSymbols] |
2288 | clevermous | 1151 | add edx, 20 |
1152 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1153 | lea ecx, [ecx*9] |
||
1154 | add ecx, ecx |
||
1155 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
1156 | |||
1157 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax, \ |
||
1158 | ecx, 0 |
||
1159 | ; test eax, eax |
||
1160 | ; jnz @F |
||
1161 | ; |
||
1162 | ;@@: |
||
1163 | |||
2384 | hidnplayr | 1164 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], szEXPORTS |
2288 | clevermous | 1165 | test eax, eax |
1166 | jnz @F |
||
1167 | |||
2384 | hidnplayr | 1168 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], sz_EXPORTS |
2288 | clevermous | 1169 | @@: |
1170 | mov [esi+DLLDESCR.exports], eax |
||
1171 | |||
1172 | ; fix relocs in the hidden copy in kernel memory to default address |
||
1173 | ; it is first fix; usually this will be enough, but second fix |
||
1174 | ; can be necessary if real load address will not equal assumption |
||
1175 | mov eax, [esi+DLLDESCR.data] |
||
1176 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1177 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
1178 | |||
1179 | stdcall kernel_free, [coff] |
||
1180 | |||
3827 | clevermous | 1181 | cli |
1182 | ; initialize DLLDESCR struct |
||
1183 | and dword [esi+DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
||
1184 | mov [esi+DLLDESCR.fd], dll_list |
||
1185 | mov eax, [dll_list.bk] |
||
1186 | mov [dll_list.bk], esi |
||
1187 | mov [esi+DLLDESCR.bk], eax |
||
1188 | mov [eax+DLLDESCR.fd], esi |
||
2288 | clevermous | 1189 | .dll_already_loaded: |
6502 | pathoswith | 1190 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1191 | inc [esi+DLLDESCR.refcount] |
1192 | push esi |
||
1193 | call init_heap |
||
1194 | pop esi |
||
1195 | mov edi, [esi+DLLDESCR.size] |
||
1196 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1197 | test eax, eax |
||
1198 | jnz @f |
||
1199 | stdcall user_alloc, edi |
||
1200 | test eax, eax |
||
1201 | jz .fail_and_dereference |
||
1202 | @@: |
||
1203 | mov [img_base], eax |
||
2384 | hidnplayr | 1204 | mov eax, sizeof.HDLL |
2288 | clevermous | 1205 | call malloc |
1206 | test eax, eax |
||
1207 | jz .fail_and_free_user |
||
8869 | rgimad | 1208 | mov ebx, [current_slot_idx] |
2288 | clevermous | 1209 | shl ebx, 5 |
8869 | rgimad | 1210 | mov edx, [TASK_TABLE+ebx+TASKDATA.pid] |
2288 | clevermous | 1211 | mov [eax+HDLL.pid], edx |
1212 | push eax |
||
1213 | call init_dlls_in_thread |
||
1214 | pop ebx |
||
1215 | test eax, eax |
||
1216 | jz .fail_and_free_user |
||
1217 | mov edx, [eax+HDLL.fd] |
||
1218 | mov [ebx+HDLL.fd], edx |
||
1219 | mov [ebx+HDLL.bk], eax |
||
1220 | mov [eax+HDLL.fd], ebx |
||
1221 | mov [edx+HDLL.bk], ebx |
||
1222 | mov eax, ebx |
||
1223 | mov ebx, [img_base] |
||
1224 | mov [eax+HDLL.base], ebx |
||
1225 | mov [eax+HDLL.size], edi |
||
1226 | mov [eax+HDLL.refcount], 1 |
||
1227 | mov [eax+HDLL.parent], esi |
||
1228 | mov edx, ebx |
||
1229 | shr edx, 12 |
||
7965 | hidnplayr | 1230 | or dword [page_tabs+(edx-1)*4], MEM_BLOCK_DONT_FREE |
2288 | clevermous | 1231 | ; copy entries of page table from kernel-side image to usermode |
1232 | ; use copy-on-write for user-mode image, so map as readonly |
||
1233 | xor edi, edi |
||
1234 | mov ecx, [esi+DLLDESCR.data] |
||
1235 | shr ecx, 12 |
||
1236 | .map_pages_loop: |
||
1237 | mov eax, [page_tabs+ecx*4] |
||
1238 | and eax, not 0xFFF |
||
5356 | serge | 1239 | or al, PG_UR |
2288 | clevermous | 1240 | xchg eax, [page_tabs+edx*4] |
1241 | test al, 1 |
||
1242 | jz @f |
||
1243 | call free_page |
||
1244 | @@: |
||
1245 | invlpg [ebx+edi] |
||
1246 | inc ecx |
||
1247 | inc edx |
||
1248 | add edi, 0x1000 |
||
1249 | cmp edi, [esi+DLLDESCR.size] |
||
1250 | jb .map_pages_loop |
||
1251 | |||
1252 | ; if real user-mode base is not equal to preferred base, relocate image |
||
1253 | sub ebx, [esi+DLLDESCR.defaultbase] |
||
1254 | jz @f |
||
1255 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1256 | @@: |
||
1257 | |||
1258 | mov eax, [esi+DLLDESCR.exports] |
||
1259 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1260 | add eax, [img_base] |
||
3827 | clevermous | 1261 | sti |
2288 | clevermous | 1262 | ret |
6502 | pathoswith | 1263 | |
2288 | clevermous | 1264 | .fail_and_free_data: |
1265 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1266 | .fail_and_free_dll: |
||
1267 | mov eax, esi |
||
1268 | call free |
||
1269 | .fail_and_free_coff: |
||
1270 | stdcall kernel_free, [coff] |
||
1271 | .fail: |
||
6502 | pathoswith | 1272 | stdcall kernel_free, [fullname] |
2288 | clevermous | 1273 | xor eax, eax |
1274 | ret |
||
6502 | pathoswith | 1275 | |
2288 | clevermous | 1276 | .fail_and_free_user: |
1277 | stdcall user_free, [img_base] |
||
1278 | .fail_and_dereference: |
||
1279 | mov eax, 1 ; delete 1 reference |
||
1280 | call dereference_dll |
||
3827 | clevermous | 1281 | sti |
2288 | clevermous | 1282 | xor eax, eax |
1283 | ret |
||
1284 | endp |
||
1285 | |||
1286 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
||
1287 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1288 | ; kept in sync for all threads of one process. |
||
1289 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1290 | ; NULL if memory allocation failed |
||
1291 | init_dlls_in_thread: |
||
5130 | serge | 1292 | mov ebx, [current_process] |
1293 | mov eax, [ebx+PROC.dlls_list_ptr] |
||
2288 | clevermous | 1294 | test eax, eax |
1295 | jnz .ret |
||
5130 | serge | 1296 | |
2288 | clevermous | 1297 | mov eax, 8 |
5130 | serge | 1298 | call malloc ; FIXME |
2288 | clevermous | 1299 | test eax, eax |
1300 | jz .ret |
||
5130 | serge | 1301 | |
2288 | clevermous | 1302 | mov [eax], eax |
1303 | mov [eax+4], eax |
||
5130 | serge | 1304 | |
1305 | mov ebx, [current_process] |
||
1306 | mov [ebx+PROC.dlls_list_ptr], eax |
||
2288 | clevermous | 1307 | .ret: |
1308 | ret |
||
1309 | |||
1310 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
||
1311 | dereference_dll: |
||
1312 | sub [esi+DLLDESCR.refcount], eax |
||
1313 | jnz .ret |
||
1314 | mov eax, [esi+DLLDESCR.fd] |
||
1315 | mov edx, [esi+DLLDESCR.bk] |
||
1316 | mov [eax+DLLDESCR.bk], edx |
||
1317 | mov [edx+DLLDESCR.fd], eax |
||
1318 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
||
1319 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1320 | mov eax, esi |
||
1321 | call free |
||
1322 | .ret: |
||
1323 | ret |
||
1324 | |||
1325 | destroy_hdll: |
||
1326 | push ebx ecx esi edi |
||
1327 | mov ebx, [eax+HDLL.base] |
||
1328 | mov esi, [eax+HDLL.parent] |
||
1329 | mov edx, [esi+DLLDESCR.size] |
||
5130 | serge | 1330 | |
2288 | clevermous | 1331 | push eax |
1332 | mov esi, [eax+HDLL.parent] |
||
1333 | mov eax, [eax+HDLL.refcount] |
||
1334 | call dereference_dll |
||
1335 | pop eax |
||
1336 | mov edx, [eax+HDLL.bk] |
||
1337 | mov ebx, [eax+HDLL.fd] |
||
1338 | mov [ebx+HDLL.bk], edx |
||
1339 | mov [edx+HDLL.fd], ebx |
||
1340 | call free |
||
1341 | pop edi esi ecx ebx |
||
1342 | ret |
||
1343 | |||
1344 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
||
1345 | destroy_all_hdlls: |
||
1346 | test esi, esi |
||
1347 | jz .ret |
||
1348 | .loop: |
||
1349 | mov eax, [esi+HDLL.fd] |
||
1350 | cmp eax, esi |
||
1351 | jz free |
||
1352 | call destroy_hdll |
||
1353 | jmp .loop |
||
1354 | .ret: |
||
1355 | ret |
||
1356 | |||
1357 | align 4 |
||
1358 | stop_all_services: |
||
1359 | push ebp |
||
1360 | mov edx, [srv.fd] |
||
1361 | .next: |
||
2384 | hidnplayr | 1362 | cmp edx, srv.fd-SRV.fd |
2288 | clevermous | 1363 | je .done |
1364 | cmp [edx+SRV.magic], ' SRV' |
||
1365 | jne .next |
||
2384 | hidnplayr | 1366 | cmp [edx+SRV.size], sizeof.SRV |
2288 | clevermous | 1367 | jne .next |
1368 | |||
1369 | mov ebx, [edx+SRV.entry] |
||
1370 | mov edx, [edx+SRV.fd] |
||
1371 | test ebx, ebx |
||
1372 | jz .next |
||
1373 | |||
1374 | push edx |
||
1375 | mov ebp, esp |
||
1376 | push 0 |
||
1377 | push -1 |
||
1378 | call ebx |
||
1379 | mov esp, ebp |
||
1380 | pop edx |
||
1381 | jmp .next |
||
1382 | .done: |
||
1383 | pop ebp |
||
1384 | ret |
||
1385 | |||
1386 | ; param |
||
1387 | ; eax= size |
||
1388 | ; ebx= pid |
||
1389 | |||
1390 | align 4 |
||
1391 | create_kernel_object: |
||
1392 | |||
1393 | push ebx |
||
1394 | call malloc |
||
1395 | pop ebx |
||
1396 | test eax, eax |
||
1397 | jz .fail |
||
1398 | |||
1399 | mov ecx, [current_slot] |
||
1400 | add ecx, APP_OBJ_OFFSET |
||
1401 | |||
1402 | pushfd |
||
1403 | cli |
||
1404 | mov edx, [ecx+APPOBJ.fd] |
||
1405 | mov [eax+APPOBJ.fd], edx |
||
1406 | mov [eax+APPOBJ.bk], ecx |
||
1407 | mov [eax+APPOBJ.pid], ebx |
||
1408 | |||
1409 | mov [ecx+APPOBJ.fd], eax |
||
1410 | mov [edx+APPOBJ.bk], eax |
||
1411 | popfd |
||
1412 | .fail: |
||
1413 | ret |
||
1414 | |||
1415 | ; param |
||
1416 | ; eax= object |
||
1417 | |||
1418 | align 4 |
||
1419 | destroy_kernel_object: |
||
1420 | |||
1421 | pushfd |
||
1422 | cli |
||
1423 | mov ebx, [eax+APPOBJ.fd] |
||
1424 | mov ecx, [eax+APPOBJ.bk] |
||
1425 | mov [ebx+APPOBJ.bk], ecx |
||
1426 | mov [ecx+APPOBJ.fd], ebx |
||
1427 | popfd |
||
1428 | |||
1429 | xor edx, edx ;clear common header |
||
1430 | mov [eax], edx |
||
1431 | mov [eax+4], edx |
||
1432 | mov [eax+8], edx |
||
1433 | mov [eax+12], edx |
||
1434 | mov [eax+16], edx |
||
1435 | |||
1436 | call free ;release object memory |
||
1437 | ret |
||
5595 | serge | 1438 | |
6926 | serge | 1439 | |
1440 | ;void* __fastcall create_object(size_t size) |
||
5595 | serge | 1441 | ; param |
1442 | ; ecx= size |
||
1443 | |||
1444 | align 4 |
||
1445 | create_object: |
||
1446 | |||
1447 | push esi |
||
1448 | push edi |
||
1449 | pushfd |
||
1450 | cli |
||
1451 | |||
1452 | mov esi, [current_process] |
||
1453 | mov eax, [esi+PROC.ht_free] |
||
1454 | mov edi, [esi+PROC.ht_next] |
||
1455 | dec eax |
||
1456 | js .err0 |
||
1457 | |||
1458 | mov [esi+PROC.ht_free], eax |
||
1459 | mov eax, [esi+PROC.htab+edi*4] |
||
1460 | mov [esi+PROC.ht_next], eax |
||
1461 | popfd |
||
1462 | |||
1463 | mov eax, ecx |
||
1464 | call malloc |
||
1465 | test eax, eax |
||
1466 | jz .err1 |
||
1467 | |||
1468 | mov [eax+FUTEX.handle], edi |
||
1469 | mov [esi+PROC.htab+edi*4], eax |
||
1470 | pop edi |
||
1471 | pop esi |
||
1472 | ret |
||
1473 | |||
1474 | .err1: |
||
1475 | pushfd |
||
1476 | cli |
||
1477 | |||
1478 | mov eax, [esi+PROC.ht_next] |
||
1479 | mov [esi+PROC.htab+edi*4], eax |
||
1480 | mov [esi+PROC.ht_next], edi |
||
1481 | inc [esi+PROC.ht_free] |
||
1482 | .err0: |
||
1483 | popfd |
||
1484 | pop edi |
||
1485 | pop esi |
||
1486 | xor eax, eax |
||
1487 | ret |
||
1488 | |||
6926 | serge | 1489 | |
1490 | ;int __fastcall destroy_object(struct object *obj) |
||
1491 | |||
1492 | align 4 |
||
1493 | destroy_object: |
||
1494 | push esi |
||
1495 | mov esi, [current_process] |
||
1496 | mov edx, [ecx+FUTEX.handle] |
||
1497 | |||
1498 | pushfd |
||
1499 | cli |
||
1500 | |||
1501 | mov eax, [esi+PROC.ht_next] |
||
1502 | mov [esi+PROC.htab+edx*4], eax |
||
1503 | mov [esi+PROC.ht_next], edx |
||
1504 | inc [esi+PROC.ht_free] |
||
1505 | |||
1506 | popfd |
||
1507 | pop esi |
||
1508 | |||
1509 | mov eax, ecx |
||
1510 | call free |
||
1511 | xor eax, eax |
||
1512 | ret |
||
1513 | .fail: |
||
1514 | popfd |
||
1515 | pop esi |
||
1516 | mov eax, -1 |
||
1517 | ret |
||
1518 |