Rev 2958 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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2554 | hidnplayr | 1 | |
2 | |||
2578 | hidnplayr | 3 | stack rb 0 |
4 | |||
5 | home_dir rb 1024 ; home directory in wich the user is locked, asciiz |
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2554 | hidnplayr | 6 | |
2610 | hidnplayr | 7 | fpath rb 1024*3 ; file path, combination of home_dir, work_dir and filename |
8 | ; Will also be used to temporarily store username |
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9 | |||
10 | type db ? ; ASCII/EBDIC/IMAGE/.. |
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2578 | hidnplayr | 11 | |
12 | socketnum dd ? ; Commands socket |
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13 | state dd ? ; disconnected/logging in/logged in/.. |
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14 | passivesocknum dd ? ; when in passive mode, this is the listening socket |
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15 | datasocketnum dd ? ; socket used for data transfers |
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16 | permissions dd ? ; read/write/execute/.... |
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17 | buffer_ptr dd ? |
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2610 | hidnplayr | 18 | pid dd ? ; Process id of the current thread |
2598 | hidnplayr | 19 | |
2624 | hidnplayr | 20 | datasock sockaddr_in |
2578 | hidnplayr | 21 | |
22 | buffer rb BUFFERSIZE |
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23 | |||
24 | |||
25 | ;------------------------------------------------ |
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26 | |||
2598 | hidnplayr | 27 | ; |
28 | ; Internal function wich uses the 'commands' |
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29 | ; table to call an appropriate cmd_xx function. |
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30 | ; |
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31 | ; input: esi = ptr to ascii commands |
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32 | ; ecx = number of bytes input |
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33 | ; ebp = pointer to thread_data structure |
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34 | ; |
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2609 | hidnplayr | 35 | ; output: none |
2598 | hidnplayr | 36 | ; |
37 | ;------------------------------------------------ |
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38 | align 4 |
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39 | parse_cmd: ; esi must point to command |
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2554 | hidnplayr | 40 | |
41 | cmp byte [esi], 0x20 ; skip all leading characters |
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42 | |||
2578 | hidnplayr | 43 | inc esi |
44 | dec ecx |
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45 | cmp ecx, 3 |
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46 | jb .error |
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47 | jmp parse_cmd |
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2598 | hidnplayr | 48 | .ok: |
49 | cmp byte [esi+3], 0x20 |
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2578 | hidnplayr | 50 | ja @f |
2557 | hidnplayr | 51 | mov byte [esi+3], 0 |
2598 | hidnplayr | 52 | @@: |
2557 | hidnplayr | 53 | |
54 | mov eax, [esi] |
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55 | |||
2554 | hidnplayr | 56 | mov edi, commands ; list of commands to scan |
57 | .scanloop: |
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58 | cmp eax, [edi] |
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59 | je .got_it |
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60 | |||
2598 | hidnplayr | 61 | add edi, 5*4 |
2554 | hidnplayr | 62 | |
2609 | hidnplayr | 63 | jne .scanloop |
2554 | hidnplayr | 64 | |
65 | .error: |
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66 | |||
67 | jb login_first |
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2609 | hidnplayr | 68 | sendFTP "500 Unsupported command" |
2598 | hidnplayr | 69 | ret |
70 | |||
2554 | hidnplayr | 71 | .got_it: |
72 | |||
2598 | hidnplayr | 73 | jmp dword [edi + 4 + eax] |
2609 | hidnplayr | 74 | |
2598 | hidnplayr | 75 | |
2554 | hidnplayr | 76 | |
2598 | hidnplayr | 77 | |
2554 | hidnplayr | 78 | commands: ; all commands must be in uppercase |
2635 | hidnplayr | 79 | |
2562 | hidnplayr | 80 | dd 'ABOR', login_first, login_first, login_first, cmdABOR |
2554 | hidnplayr | 81 | |
2609 | hidnplayr | 82 | ; dd 'APPE', login_first, login_first, login_first, cmd_APPE |
83 | dd 'CDUP', login_first, login_first, login_first, cmdCDUP |
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84 | dd 'CWD', login_first, login_first, login_first, cmdCWD |
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85 | dd 'DELE', login_first, login_first, login_first, cmdDELE |
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86 | ; dd 'HELP', login_first, login_first, login_first, cmd_HELP |
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87 | dd 'LIST', login_first, login_first, login_first, cmdLIST |
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88 | ; dd 'MDTM', login_first, login_first, login_first, cmd_MDTM |
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89 | ; dd 'MKD', login_first, login_first, login_first, cmd_MKD |
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90 | ; dd 'MODE', login_first, login_first, login_first, cmd_MODE |
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91 | dd 'NLST', login_first, login_first, login_first, cmdNLST |
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92 | dd 'NOOP', login_first, login_first, login_first, cmdNOOP |
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93 | dd 'PASS', cmdPASS.0, cmdPASS , cmdPASS.2, cmdPASS.3 |
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94 | dd 'PASV', login_first, login_first, login_first, cmdPASV |
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95 | dd 'PORT', login_first, login_first, login_first, cmdPORT |
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96 | dd 'PWD', login_first, login_first, login_first, cmdPWD |
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97 | dd 'QUIT', cmdQUIT, cmdQUIT, cmdQUIT, cmdQUIT |
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98 | ; dd 'REIN', login_first, login_first, login_first, cmd_REIN |
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99 | ; dd 'REST', login_first, login_first, login_first, cmd_REST |
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100 | dd 'RETR', login_first, login_first, login_first, cmdRETR |
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101 | ; dd 'RMD', login_first, login_first, login_first, cmd_RMD |
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102 | ; dd 'RNFR', login_first, login_first, login_first, cmd_RNFR |
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103 | ; dd 'RNTO', login_first, login_first, login_first, cmd_RNTO |
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104 | ; dd 'SITE', login_first, login_first, login_first, cmd_SITE |
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105 | ; dd 'SIZE', login_first, login_first, login_first, cmd_SIZE |
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106 | ; dd 'STAT', login_first, login_first, login_first, cmd_STAT |
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107 | dd 'STOR', login_first, login_first, login_first, cmdSTOR |
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108 | ; dd 'STOU', login_first, login_first, login_first, cmd_STOU |
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109 | ; dd 'STRU', login_first, login_first, login_first, cmd_STRU |
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110 | dd 'SYST', login_first, login_first, login_first, cmdSYST |
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111 | dd 'TYPE', login_first, login_first, login_first, cmdTYPE |
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112 | dd 'USER', cmdUSER, cmdUSER, cmdUSER, cmdUSER.2 |
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113 | db 0 ; end marker |
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114 | endg |
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115 | |||
2635 | hidnplayr | 116 | align 4 |
2554 | hidnplayr | 117 | |
2598 | hidnplayr | 118 | sendFTP "530 Please login with USER and PASS" |
119 | ret |
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120 | |||
121 | align 4 |
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2554 | hidnplayr | 122 | |
123 | sendFTP "550 Permission denied" |
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2598 | hidnplayr | 124 | ret |
125 | |||
126 | align 4 |
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2554 | hidnplayr | 127 | |
2598 | hidnplayr | 128 | invoke con_set_flags, 0x0c |
129 | invoke con_write_asciiz, str_sockerr |
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2602 | hidnplayr | 130 | invoke con_set_flags, 0x07 |
131 | |||
132 | sendFTP "425 Can't open data connection" |
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2578 | hidnplayr | 133 | |
2598 | hidnplayr | 134 | |
2554 | hidnplayr | 135 | align 4 |
136 | |||
137 | and [ebp + thread_data.permissions], not ABORT |
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2598 | hidnplayr | 138 | mov [ebp + thread_data.mode], MODE_NOTREADY |
2609 | hidnplayr | 139 | invoke file.close, ebx |
140 | mcall close, [ebp + thread_data.datasocketnum] |
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2602 | hidnplayr | 141 | |
2609 | hidnplayr | 142 | sendFTP "530 Transfer aborted" |
2602 | hidnplayr | 143 | |
2598 | hidnplayr | 144 | |
145 | align 4 |
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146 | |||
147 | |||
148 | call ascii_to_byte |
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149 | |||
150 | cmp byte [esi], cl |
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2602 | hidnplayr | 151 | jne .err |
2598 | hidnplayr | 152 | inc esi |
153 | |||
2602 | hidnplayr | 154 | call ascii_to_byte |
2598 | hidnplayr | 155 | |
156 | cmp byte [esi], cl |
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157 | jne .err |
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158 | inc esi |
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159 | |||
2602 | hidnplayr | 160 | shl ebx, 16 |
161 | |||
2598 | hidnplayr | 162 | call ascii_to_byte |
163 | |||
164 | cmp byte [esi], cl |
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2602 | hidnplayr | 165 | jne .err |
2598 | hidnplayr | 166 | inc esi |
167 | |||
2602 | hidnplayr | 168 | call ascii_to_byte |
2598 | hidnplayr | 169 | |
170 | |||
171 | ror ebx, 16 |
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172 | |||
173 | |||
174 | .err: |
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175 | |||
176 | ret |
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177 | |||
178 | align 4 ; esi = ptr to str, output in eax |
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179 | |||
180 | |||
181 | xor eax, eax |
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182 | |||
183 | |||
184 | .loop: |
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185 | |||
186 | sub bl, '0' |
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187 | jb .done |
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188 | cmp bl, 9 |
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189 | ja .done |
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190 | lea eax, [eax*4 + eax] ; |
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191 | shl eax, 1 ; eax = eax * 10 |
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192 | add eax, ebx |
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193 | inc esi |
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194 | |||
195 | jmp .loop |
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196 | |||
197 | .done: |
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198 | |||
199 | ret |
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200 | |||
201 | align 4 |
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202 | |||
203 | |||
204 | push edx ebx ecx |
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205 | |||
206 | xor ecx, ecx |
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207 | |||
208 | @@: |
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209 | |||
210 | div ebx |
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211 | add edx, '0' |
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212 | pushw dx |
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213 | inc ecx |
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214 | test eax, eax |
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215 | jnz @r |
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216 | |||
217 | @@: |
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218 | |||
219 | stosb |
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220 | dec ecx |
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221 | jnz @r |
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222 | |||
223 | pop ecx ebx edx |
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224 | |||
225 | |||
226 | align 4 |
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227 | |||
228 | |||
229 | lea edi, [ebp + thread_data.fpath] |
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230 | |||
2609 | hidnplayr | 231 | mov ecx, 1024 |
232 | .loop1: |
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2598 | hidnplayr | 233 | lodsb |
234 | cmp al, 0x20 |
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235 | jb .next |
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2602 | hidnplayr | 236 | stosb |
237 | loop .loop1 |
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2598 | hidnplayr | 238 | .next: |
239 | |||
240 | cmp byte[edi-1], '/' |
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241 | |||
242 | dec edi |
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243 | @@: |
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244 | |||
245 | lea esi, [ebp + thread_data.work_dir] |
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246 | |||
2609 | hidnplayr | 247 | .loop2: |
2598 | hidnplayr | 248 | lodsb |
249 | cmp al, 0x20 |
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250 | jb .done |
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2602 | hidnplayr | 251 | stosb |
252 | loop .loop2 |
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2598 | hidnplayr | 253 | |
254 | .done: |
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255 | |||
256 | stosb |
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2602 | hidnplayr | 257 | ret |
2598 | hidnplayr | 258 | |
259 | |||
260 | |||
2610 | hidnplayr | 261 | |
262 | |||
263 | inc [pasv_port] |
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264 | |||
265 | mov ax, [pasv_port] |
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266 | |||
267 | jb .restart |
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268 | cmp ax, [pasv_end] |
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269 | ja .restart |
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270 | |||
271 | ret |
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272 | |||
273 | .restart: |
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274 | |||
275 | popw [pasv_port] |
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276 | |||
277 | ret |
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278 | |||
279 | |||
280 | |||
281 | |||
2892 | hidnplayr | 282 | |
283 | cmp [ebp + thread_data.mode], MODE_PASSIVE_OK |
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284 | |||
285 | |||
286 | ; If we are in active mode, it's time to open a data socket.. |
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287 | |||
288 | jne .not_active |
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289 | mov ecx, [ebp + thread_data.datasocketnum] |
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290 | lea edx, [ebp + thread_data.datasock] |
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291 | mov esi, sizeof.thread_data.datasock |
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292 | mcall connect |
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293 | cmp eax, -1 |
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294 | jne .start |
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295 | |||
296 | .socketerror: |
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297 | |||
298 | jmp socketerror |
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299 | |||
300 | ; If we are still in passive_wait, it's time we accept an incomming call.. |
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301 | |||
302 | cmp [ebp + thread_data.mode], MODE_PASSIVE_WAIT |
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303 | jne .socketerror |
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304 | |||
305 | .try_now: |
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306 | |||
307 | lea edx, [ebp + thread_data.datasock] |
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308 | mov esi, sizeof.thread_data.datasock |
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309 | mcall accept |
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310 | cmp eax, -1 |
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311 | jne .pasv_ok |
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312 | mov [ebp + thread_data.mode], MODE_PASSIVE_FAILED ; assume that we will fail |
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313 | mcall 23, 200 |
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314 | mcall accept |
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315 | cmp eax, -1 |
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316 | je .socketerror |
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317 | .pasv_ok: |
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318 | mov [ebp + thread_data.datasocketnum], eax |
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319 | mov [ebp + thread_data.mode], MODE_PASSIVE_OK |
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320 | mcall close ; [ebp + thread_data.passivesocknum] |
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321 | mov [ebp + thread_data.passivesocknum], -1 |
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322 | invoke con_write_asciiz, str_datasock |
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323 | |||
324 | .start: |
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325 | |||
326 | |||
327 | |||
328 | |||
329 | |||
2598 | hidnplayr | 330 | ; |
331 | ; This command aborts the current filetransfer. |
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332 | ; |
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333 | ;------------------------------------------------ |
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334 | align 4 |
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335 | cmdABOR: |
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336 | |||
337 | or [ebp + thread_data.permissions], ABORT |
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338 | |||
2609 | hidnplayr | 339 | ret |
2598 | hidnplayr | 340 | |
341 | ;------------------------------------------------ |
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342 | |||
343 | ; |
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344 | ; Change the directory to move up one level. |
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345 | ; |
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346 | ;------------------------------------------------ |
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347 | align 4 |
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348 | cmdCDUP: |
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349 | |||
2571 | hidnplayr | 350 | test [ebp + thread_data.permissions], PERMISSION_CD |
351 | |||
2609 | hidnplayr | 352 | |
2598 | hidnplayr | 353 | cmp byte [ebp + thread_data.work_dir+1], 0 ; are we in "/" ? |
354 | |||
2610 | hidnplayr | 355 | |
356 | ; find the end of asciiz string work_dir |
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2571 | hidnplayr | 357 | |
2610 | hidnplayr | 358 | xor al, al |
2571 | hidnplayr | 359 | lea edi, [ebp + thread_data.work_dir] |
360 | repne scasb |
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2609 | hidnplayr | 361 | ; return 2 characters (right before last /) |
2571 | hidnplayr | 362 | sub edi, 3 |
2610 | hidnplayr | 363 | ; and now search backwards, for a '/' |
2609 | hidnplayr | 364 | mov al,'/' |
2610 | hidnplayr | 365 | neg ecx |
2609 | hidnplayr | 366 | add ecx, 1024 |
367 | std |
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368 | repne scasb |
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2610 | hidnplayr | 369 | cld |
2585 | hidnplayr | 370 | ; terminate the string here |
2571 | hidnplayr | 371 | mov byte[edi+2], 0 |
2610 | hidnplayr | 372 | |
373 | .done: |
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2571 | hidnplayr | 374 | |
375 | lea eax, [ebp + thread_data.work_dir] |
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2585 | hidnplayr | 376 | invoke con_write_asciiz, eax |
2609 | hidnplayr | 377 | invoke con_write_asciiz, str_newline |
2610 | hidnplayr | 378 | |
379 | sendFTP "250 Command succesul" |
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2585 | hidnplayr | 380 | |
2598 | hidnplayr | 381 | |
2571 | hidnplayr | 382 | ;------------------------------------------------ |
383 | |||
2598 | hidnplayr | 384 | ; |
385 | ; Change Working Directory. |
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386 | ; |
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387 | ;------------------------------------------------ |
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388 | align 4 |
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389 | cmdCWD: |
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2571 | hidnplayr | 390 | |
2598 | hidnplayr | 391 | test [ebp + thread_data.permissions], PERMISSION_CD |
2554 | hidnplayr | 392 | |
2609 | hidnplayr | 393 | |
2598 | hidnplayr | 394 | ; do we have enough parameters? |
395 | |||
2610 | hidnplayr | 396 | jbe .err |
2563 | hidnplayr | 397 | |
2610 | hidnplayr | 398 | ; get ready to copy the path |
399 | |||
400 | mov ecx, 1024 |
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2563 | hidnplayr | 401 | lea edi, [ebp + thread_data.work_dir] |
2609 | hidnplayr | 402 | |
403 | ; if received dir starts with '/', we will simply copy it |
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2610 | hidnplayr | 404 | |
405 | cmp byte [esi], '/' |
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406 | je .copyloop |
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2609 | hidnplayr | 407 | |
2610 | hidnplayr | 408 | ; Find the end of work_dir string. |
2609 | hidnplayr | 409 | |
2610 | hidnplayr | 410 | .find_zero: |
411 | repne scasb |
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2578 | hidnplayr | 412 | dec edi |
2610 | hidnplayr | 413 | |
414 | ; and now append work_dir with received string |
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2563 | hidnplayr | 415 | |
2610 | hidnplayr | 416 | |
417 | ; scan for end byte, or '.' |
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2563 | hidnplayr | 418 | |
2610 | hidnplayr | 419 | lodsb |
420 | cmp al, 0x20 |
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2563 | hidnplayr | 421 | jb .done |
422 | ;;; cmp al, '.' ; '..' means we must go up one dir TODO |
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423 | ;;; je .up |
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2610 | hidnplayr | 424 | stosb |
425 | loop .copyloop |
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2563 | hidnplayr | 426 | |
2610 | hidnplayr | 427 | ; now, now make sure it ends with '/', 0 |
428 | |||
429 | cmp byte [edi-1], '/' |
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2563 | hidnplayr | 430 | je @f |
431 | mov byte [edi], '/' |
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432 | inc edi |
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433 | @@: |
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434 | mov byte [edi], 0 |
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435 | |||
436 | ; Print the new working dir on the console |
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437 | |||
2585 | hidnplayr | 438 | invoke con_write_asciiz, eax |
2609 | hidnplayr | 439 | invoke con_write_asciiz, str_newline |
2610 | hidnplayr | 440 | |
441 | sendFTP "250 Command succesful" |
||
2585 | hidnplayr | 442 | |
2598 | hidnplayr | 443 | |
2554 | hidnplayr | 444 | .err: |
445 | |||
2563 | hidnplayr | 446 | ret |
2598 | hidnplayr | 447 | |
2563 | hidnplayr | 448 | ;------------------------------------------------ |
449 | |||
2598 | hidnplayr | 450 | ; |
451 | ; Delete a file from the server. |
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452 | ; |
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453 | ;------------------------------------------------ |
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454 | align 4 |
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455 | cmdDELE: |
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2554 | hidnplayr | 456 | |
457 | test [ebp + thread_data.permissions], PERMISSION_DELETE |
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458 | |||
2609 | hidnplayr | 459 | |
2598 | hidnplayr | 460 | ret |
461 | |||
2554 | hidnplayr | 462 | ;------------------------------------------------ |
463 | |||
2598 | hidnplayr | 464 | ; |
465 | ; List the files in the current working directory. |
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466 | ; |
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467 | ;------------------------------------------------ |
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468 | align 4 |
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469 | cmdLIST: |
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2554 | hidnplayr | 470 | |
471 | test [ebp + thread_data.permissions], PERMISSION_EXEC |
||
472 | |||
2609 | hidnplayr | 473 | |
2598 | hidnplayr | 474 | call open_datasock |
475 | |||
2892 | hidnplayr | 476 | ; Create fpath from home_dir and work_dir |
2610 | hidnplayr | 477 | |
2563 | hidnplayr | 478 | |
479 | lea ebx, [ebp + thread_data.fpath] |
||
480 | |||
2609 | hidnplayr | 481 | invoke con_write_asciiz, str_newline |
2602 | hidnplayr | 482 | |
483 | ; Start the search |
||
2571 | hidnplayr | 484 | |
2563 | hidnplayr | 485 | test eax, eax |
2945 | hidnplayr | 486 | jz .nosuchdir |
2578 | hidnplayr | 487 | |
488 | lea edi, [ebp + thread_data.buffer] |
||
489 | |||
2609 | hidnplayr | 490 | test eax, eax ; did we find a file? |
2562 | hidnplayr | 491 | jz .done |
2563 | hidnplayr | 492 | mov ebx, eax ; yes, save the descripter in ebx |
2562 | hidnplayr | 493 | |
2578 | hidnplayr | 494 | ; first, convert the attributes |
2562 | hidnplayr | 495 | |
496 | jnz .folder |
||
2578 | hidnplayr | 497 | |
2562 | hidnplayr | 498 | test [ebx + FileInfoA.Attributes], FA_READONLY |
499 | |||
2578 | hidnplayr | 500 | |
2562 | hidnplayr | 501 | mov eax, '-rw-' |
502 | |||
503 | jmp .attr |
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504 | |||
505 | .folder: |
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506 | |||
507 | stosd |
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508 | jmp .attr |
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2563 | hidnplayr | 509 | |
2562 | hidnplayr | 510 | .readonly: |
511 | |||
512 | stosd |
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513 | |||
514 | .attr: |
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515 | |||
516 | stosd |
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517 | mov ax, 'w-' |
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518 | stosw |
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519 | mov al, ' ' |
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520 | stosb |
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521 | |||
522 | ; now.. |
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523 | |||
524 | stosw |
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525 | |||
526 | ; now write owner, everything is owned by FTP, woohoo! |
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527 | |||
528 | stosd |
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529 | stosd |
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530 | |||
531 | ; now the filesize in ascii |
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532 | |||
533 | call dword_to_ascii |
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2578 | hidnplayr | 534 | mov al, ' ' |
2562 | hidnplayr | 535 | stosb |
536 | |||
537 | ; then date (month/day/year) |
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538 | |||
539 | cmp eax, 12 |
||
2578 | hidnplayr | 540 | ja @f |
2602 | hidnplayr | 541 | mov eax, [months - 4 + 4*eax] |
542 | stosd |
||
543 | @@: |
||
2562 | hidnplayr | 544 | |
2602 | hidnplayr | 545 | movzx eax, [ebx + FileInfoA.DateModify + FileDateTime.day] |
2562 | hidnplayr | 546 | |
2578 | hidnplayr | 547 | mov al, ' ' |
2562 | hidnplayr | 548 | stosb |
549 | |||
550 | movzx eax, [ebx + FileInfoA.DateModify + FileDateTime.year] |
||
551 | |||
2578 | hidnplayr | 552 | mov al, ' ' |
2562 | hidnplayr | 553 | stosb |
554 | |||
555 | ; and last but not least, filename |
||
556 | |||
557 | mov ecx, 264 |
||
2578 | hidnplayr | 558 | .nameloop: |
559 | lodsb |
||
2562 | hidnplayr | 560 | test al, al |
561 | jz .namedone |
||
562 | stosb |
||
563 | loop .nameloop |
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564 | |||
565 | ; insert a cr lf |
||
566 | |||
2563 | hidnplayr | 567 | mov ax, 0x0a0d |
2562 | hidnplayr | 568 | stosw |
2571 | hidnplayr | 569 | |
2562 | hidnplayr | 570 | test [ebp + thread_data.permissions], ABORT ; Did we receive ABOR command from client? |
571 | |||
2609 | hidnplayr | 572 | |
2945 | hidnplayr | 573 | ; check next file |
2598 | hidnplayr | 574 | |
2563 | hidnplayr | 575 | jmp .parse_file |
2609 | hidnplayr | 576 | |
577 | ; close file desc |
||
2563 | hidnplayr | 578 | |
579 | invoke file.find.close, ebx ; ebx is descriptor of last file, eax will be -1 !! |
||
2562 | hidnplayr | 580 | |
2624 | hidnplayr | 581 | ; append the string with a 0 |
2562 | hidnplayr | 582 | |
2563 | hidnplayr | 583 | stosb |
2562 | hidnplayr | 584 | |
585 | ; Warn the client we're about to send the data |
||
586 | |||
2571 | hidnplayr | 587 | sendFTP "150 Here it comes.." |
2598 | hidnplayr | 588 | pop esi |
589 | |||
590 | ; and send it to the client |
||
2562 | hidnplayr | 591 | |
2563 | hidnplayr | 592 | lea edx, [ebp + thread_data.buffer] ; buffer ptr |
2624 | hidnplayr | 593 | sub esi, edx ; length |
594 | xor edi, edi ; flags |
||
595 | mcall send |
||
596 | |||
2578 | hidnplayr | 597 | ; close the data socket.. |
2562 | hidnplayr | 598 | |
2563 | hidnplayr | 599 | mcall close, [ebp + thread_data.datasocketnum] |
2609 | hidnplayr | 600 | |
601 | sendFTP "226 Transfer OK" |
||
2562 | hidnplayr | 602 | |
2598 | hidnplayr | 603 | |
2554 | hidnplayr | 604 | .nosuchdir: |
605 | |||
2578 | hidnplayr | 606 | ret |
2598 | hidnplayr | 607 | |
2578 | hidnplayr | 608 | ;------------------------------------------------ |
609 | |||
2598 | hidnplayr | 610 | ; |
611 | ; List the filenames of the files in the current working directory. |
||
612 | ; |
||
613 | ;------------------------------------------------ |
||
614 | align 4 |
||
615 | cmdNLST: |
||
2554 | hidnplayr | 616 | |
617 | test [ebp + thread_data.permissions], PERMISSION_EXEC |
||
618 | |||
2609 | hidnplayr | 619 | |
2598 | hidnplayr | 620 | ; TODO: same as list but simpler output format |
621 | |||
2578 | hidnplayr | 622 | ret |
623 | |||
2554 | hidnplayr | 624 | ;------------------------------------------------ |
625 | |||
2598 | hidnplayr | 626 | ; |
627 | ; No operation, just keep the connection alive. |
||
628 | ; |
||
629 | ;------------------------------------------------ |
||
630 | align 4 |
||
631 | cmdNOOP: |
||
2554 | hidnplayr | 632 | |
633 | sendFTP "200 Command OK" |
||
634 | |||
2602 | hidnplayr | 635 | |
2554 | hidnplayr | 636 | ;------------------------------------------------ |
637 | |||
2598 | hidnplayr | 638 | ; |
639 | ; Second phase of login process, client provides password. |
||
640 | ; |
||
641 | ;------------------------------------------------ |
||
642 | align 4 |
||
643 | cmdPASS: |
||
2554 | hidnplayr | 644 | |
2557 | hidnplayr | 645 | ; read the password from users.ini |
2602 | hidnplayr | 646 | |
647 | lea ebx, [ebp + thread_data.fpath] ; temp username |
||
2609 | hidnplayr | 648 | invoke ini.get_str, path2, ebx, str_pass, edi, 512, str_infinity |
649 | test eax, eax ; unable to read password? fail! |
||
2602 | hidnplayr | 650 | jnz .incorrect |
2610 | hidnplayr | 651 | cmp dword [edi], -1 ; no key, section or file found.. fail! |
2598 | hidnplayr | 652 | je .incorrect |
2610 | hidnplayr | 653 | cmp byte [edi], 0 ; zero password? ok! |
2602 | hidnplayr | 654 | je .ok |
2958 | hidnplayr | 655 | |
656 | add esi, 5 |
||
2557 | hidnplayr | 657 | |
2610 | hidnplayr | 658 | jbe .incorrect ; no password given? but hey, we need one! fail.. |
659 | |||
660 | ; compare with received password |
||
661 | |||
2602 | hidnplayr | 662 | cmp byte [esi-1], 0x20 ; printeable characters left? |
2598 | hidnplayr | 663 | jae .incorrect |
2610 | hidnplayr | 664 | cmp byte [edi-1], 0 |
2598 | hidnplayr | 665 | jne .incorrect |
2610 | hidnplayr | 666 | |
2598 | hidnplayr | 667 | .ok: |
668 | |||
2610 | hidnplayr | 669 | mov [ebp + thread_data.permissions], eax |
2602 | hidnplayr | 670 | |
2609 | hidnplayr | 671 | invoke con_write_asciiz, str_pass_ok |
2598 | hidnplayr | 672 | |
2602 | hidnplayr | 673 | sendFTP "230 You are now logged in" |
2609 | hidnplayr | 674 | ret |
2598 | hidnplayr | 675 | |
676 | .2: |
||
2557 | hidnplayr | 677 | |
2598 | hidnplayr | 678 | invoke con_write_asciiz, str_pass_err |
679 | mov [ebp + thread_data.state], STATE_CONNECTED ; reset state |
||
2610 | hidnplayr | 680 | sendFTP "530 Login incorrect" |
681 | ret |
||
2598 | hidnplayr | 682 | |
2557 | hidnplayr | 683 | .0: |
684 | |||
2598 | hidnplayr | 685 | ret |
686 | |||
687 | .3: |
||
688 | |||
689 | ret |
||
690 | |||
691 | ;------------------------------------------------ |
||
692 | |||
693 | ; |
||
694 | ; Initiate a passive dataconnection. |
||
695 | ; |
||
696 | ;------------------------------------------------ |
||
697 | align 4 |
||
698 | cmdPASV: |
||
699 | |||
2560 | hidnplayr | 700 | ; cmp [ebp + thread_data.passivesocknum], -1 |
701 | |||
2892 | hidnplayr | 702 | ; mcall close, [ebp + thread_data.passivesocknum] ; if there is still a socket open, close it |
703 | ; @@: |
||
704 | |||
705 | ; Open a new TCP socket |
||
2610 | hidnplayr | 706 | |
2578 | hidnplayr | 707 | cmp eax, -1 |
2562 | hidnplayr | 708 | je socketerror |
709 | mov [ebp + thread_data.passivesocknum], eax |
||
2578 | hidnplayr | 710 | |
2609 | hidnplayr | 711 | ; Bind it to a known local port |
2562 | hidnplayr | 712 | |
2578 | hidnplayr | 713 | mov [ebp + thread_data.datasock.sin_addr], 0 |
2609 | hidnplayr | 714 | |
715 | mov ecx, eax ; passivesocketnum |
||
2562 | hidnplayr | 716 | |
2598 | hidnplayr | 717 | mov esi, sizeof.thread_data.datasock |
2609 | hidnplayr | 718 | |
2581 | hidnplayr | 719 | .next_port: ; TODO: break the endless loop |
2610 | hidnplayr | 720 | |
721 | pushw [pasv_port] |
||
722 | popw [ebp + thread_data.datasock.sin_port] |
||
723 | |||
724 | mcall bind |
||
725 | |||
2581 | hidnplayr | 726 | je .next_port |
2562 | hidnplayr | 727 | |
2610 | hidnplayr | 728 | ; And set it to listen! |
2562 | hidnplayr | 729 | |
2578 | hidnplayr | 730 | cmp eax, -1 |
2598 | hidnplayr | 731 | je socketerror |
732 | |||
2610 | hidnplayr | 733 | ; Tell our thread we are ready to accept incoming calls |
2562 | hidnplayr | 734 | |
2578 | hidnplayr | 735 | |
2609 | hidnplayr | 736 | ; Now tell the client where to connect to in this format: |
2562 | hidnplayr | 737 | |
2578 | hidnplayr | 738 | ; where a1.a2.a3.a4 is the IP address and p1*256+p2 is the port number. |
739 | |||
740 | ; '227 (' |
||
2598 | hidnplayr | 741 | |
742 | mov eax, '227 ' |
||
2609 | hidnplayr | 743 | stosd |
2610 | hidnplayr | 744 | mov al, '(' |
2562 | hidnplayr | 745 | stosb |
2598 | hidnplayr | 746 | ; ip |
2562 | hidnplayr | 747 | movzx eax, byte [serverip] |
2598 | hidnplayr | 748 | call dword_to_ascii |
2610 | hidnplayr | 749 | mov al, ',' |
2598 | hidnplayr | 750 | stosb |
751 | movzx eax, byte [serverip+1] |
||
2562 | hidnplayr | 752 | call dword_to_ascii |
2610 | hidnplayr | 753 | mov al, ',' |
2598 | hidnplayr | 754 | stosb |
755 | movzx eax, byte [serverip+2] |
||
756 | call dword_to_ascii |
||
2610 | hidnplayr | 757 | mov al, ',' |
2598 | hidnplayr | 758 | stosb |
759 | movzx eax, byte [serverip+3] |
||
760 | call dword_to_ascii |
||
2610 | hidnplayr | 761 | mov al, ',' |
2598 | hidnplayr | 762 | stosb |
763 | ; port |
||
764 | movzx eax, byte [ebp + thread_data.datasock.sin_port] |
||
765 | call dword_to_ascii |
||
2995 | hidnplayr | 766 | mov al, ',' |
2598 | hidnplayr | 767 | stosb |
768 | movzx eax, byte [ebp + thread_data.datasock.sin_port+1] |
||
769 | call dword_to_ascii |
||
2995 | hidnplayr | 770 | ; ')', 13, 10, 0 |
2598 | hidnplayr | 771 | mov eax, ')' + 0x000a0d00 |
772 | stosd |
||
773 | |||
774 | lea esi, [edi - thread_data.buffer] |
||
2562 | hidnplayr | 775 | |
2578 | hidnplayr | 776 | mov ecx, [ebp + thread_data.socketnum] |
2609 | hidnplayr | 777 | lea edx, [ebp + thread_data.buffer] |
778 | xor edi, edi |
||
779 | mcall send |
||
2602 | hidnplayr | 780 | |
2581 | hidnplayr | 781 | ret |
2562 | hidnplayr | 782 | |
2560 | hidnplayr | 783 | ;------------------------------------------------ |
784 | |||
2598 | hidnplayr | 785 | ; |
786 | ; Print the current working directory. |
||
787 | ; |
||
788 | ;------------------------------------------------ |
||
789 | align 4 |
||
790 | cmdPWD: |
||
2560 | hidnplayr | 791 | |
2598 | hidnplayr | 792 | mov dword [ebp + thread_data.buffer], '257 ' |
2554 | hidnplayr | 793 | |
2609 | hidnplayr | 794 | |
795 | lea edi, [ebp + thread_data.buffer+5] |
||
2560 | hidnplayr | 796 | |
2609 | hidnplayr | 797 | mov ecx, 1024 |
798 | .loop: |
||
2560 | hidnplayr | 799 | lodsb |
800 | or al, al |
||
801 | jz .ok |
||
802 | stosb |
||
803 | dec ecx |
||
804 | jnz .loop |
||
805 | |||
806 | .ok: |
||
807 | |||
808 | lea esi, [edi - thread_data.buffer + 4] |
||
2578 | hidnplayr | 809 | sub esi, ebp |
810 | mov ecx, [ebp + thread_data.socketnum] |
||
2609 | hidnplayr | 811 | lea edx, [ebp + thread_data.buffer] |
812 | xor edi, edi |
||
813 | mcall send |
||
2585 | hidnplayr | 814 | |
815 | ; Print the new working dir on the console |
||
2560 | hidnplayr | 816 | |
2585 | hidnplayr | 817 | invoke con_write_asciiz, eax |
2609 | hidnplayr | 818 | invoke con_write_asciiz, str_newline |
2602 | hidnplayr | 819 | |
820 | ret |
||
2562 | hidnplayr | 821 | |
2554 | hidnplayr | 822 | ;------------------------------------------------ |
823 | |||
2598 | hidnplayr | 824 | ; |
825 | ; Initiate an active dataconnection. |
||
826 | ; |
||
827 | ;------------------------------------------------ |
||
828 | align 4 |
||
829 | cmdPORT: |
||
2554 | hidnplayr | 830 | |
831 | ; PORT a1,a2,a3,a4,p1,p2 |
||
832 | |||
2560 | hidnplayr | 833 | |
834 | ; Convert the IP |
||
835 | |||
2598 | hidnplayr | 836 | mov cl, ',' |
2560 | hidnplayr | 837 | call ip_to_dword |
2598 | hidnplayr | 838 | ; And put it in datasock |
839 | mov [ebp + thread_data.datasock.sin_addr], ebx |
||
2578 | hidnplayr | 840 | |
2609 | hidnplayr | 841 | ; Now the same with portnumber |
2560 | hidnplayr | 842 | |
2578 | hidnplayr | 843 | call ascii_to_byte |
2602 | hidnplayr | 844 | mov byte[ebp + thread_data.datasock.sin_port], al |
2560 | hidnplayr | 845 | inc esi |
2995 | hidnplayr | 846 | call ascii_to_byte |
2560 | hidnplayr | 847 | mov byte[ebp + thread_data.datasock.sin_port+1], al |
848 | |||
2995 | hidnplayr | 849 | ; We will open the socket, but do not connect yet! |
2560 | hidnplayr | 850 | |
2578 | hidnplayr | 851 | mcall socket, AF_INET4, SOCK_STREAM, 0 |
2609 | hidnplayr | 852 | cmp eax, -1 |
2562 | hidnplayr | 853 | je socketerror |
2560 | hidnplayr | 854 | |
2578 | hidnplayr | 855 | mov [ebp + thread_data.datasocketnum], eax |
2598 | hidnplayr | 856 | |
2609 | hidnplayr | 857 | |
858 | sendFTP "225 Data connection open" |
||
2560 | hidnplayr | 859 | |
2598 | hidnplayr | 860 | |
2554 | hidnplayr | 861 | ;------------------------------------------------ |
862 | |||
2598 | hidnplayr | 863 | ; |
864 | ; Close the connection with client. |
||
865 | ; |
||
866 | ;------------------------------------------------ |
||
867 | align 4 |
||
868 | cmdQUIT: |
||
2554 | hidnplayr | 869 | |
870 | sendFTP "221 Bye!" |
||
871 | |||
2602 | hidnplayr | 872 | mcall close, [ebp + thread_data.socketnum] |
2609 | hidnplayr | 873 | |
874 | add esp, 4 ; get rid of call return address |
||
2598 | hidnplayr | 875 | |
2581 | hidnplayr | 876 | |
877 | |||
2554 | hidnplayr | 878 | |
2598 | hidnplayr | 879 | |
880 | ; |
||
881 | ; Retrieve a file from the ftp server. |
||
882 | ; |
||
883 | ;------------------------------------------------ |
||
884 | align 4 |
||
885 | cmdRETR: |
||
2554 | hidnplayr | 886 | |
887 | test [ebp + thread_data.permissions], PERMISSION_READ |
||
888 | |||
2609 | hidnplayr | 889 | |
2598 | hidnplayr | 890 | cmp ecx, 1024 + 5 |
891 | |||
2602 | hidnplayr | 892 | |
893 | sub ecx, 5 |
||
894 | |||
2571 | hidnplayr | 895 | |
896 | call open_datasock |
||
897 | |||
2892 | hidnplayr | 898 | call create_path |
2610 | hidnplayr | 899 | |
2571 | hidnplayr | 900 | lea esi, [ebp + thread_data.buffer + 5] |
901 | mov ecx, 1024 |
||
2892 | hidnplayr | 902 | cmp byte [esi], '/' |
2610 | hidnplayr | 903 | jne .loop |
2958 | hidnplayr | 904 | inc esi |
905 | .loop: |
||
906 | lodsb |
||
2571 | hidnplayr | 907 | cmp al, 0x20 |
908 | jl .done |
||
909 | stosb |
||
910 | loop .loop |
||
911 | .done: |
||
912 | xor al, al |
||
913 | stosb |
||
914 | |||
915 | lea ebx, [ebp + thread_data.fpath] |
||
2563 | hidnplayr | 916 | |
2609 | hidnplayr | 917 | invoke con_write_asciiz, str_newline |
2602 | hidnplayr | 918 | |
919 | invoke file.open, ebx, O_READ |
||
2571 | hidnplayr | 920 | |
2602 | hidnplayr | 921 | jz .cannot_open |
2571 | hidnplayr | 922 | |
923 | push eax |
||
2563 | hidnplayr | 924 | |
2602 | hidnplayr | 925 | pop ebx |
2598 | hidnplayr | 926 | |
2571 | hidnplayr | 927 | .read_more: |
2563 | hidnplayr | 928 | |
929 | jnz abort_transfer |
||
2609 | hidnplayr | 930 | |
2598 | hidnplayr | 931 | lea eax, [ebp + thread_data.buffer] ; FIXME: use another buffer!! if we receive something on control connection now, we screw up! |
932 | |||
2609 | hidnplayr | 933 | cmp eax, -1 |
2602 | hidnplayr | 934 | je .cannot_open ; FIXME: this is not the correct error |
2571 | hidnplayr | 935 | |
2602 | hidnplayr | 936 | invoke con_write_asciiz, str2 |
2562 | hidnplayr | 937 | |
2892 | hidnplayr | 938 | push eax ebx |
939 | |||
2598 | hidnplayr | 940 | mov ecx, [ebp + thread_data.datasocketnum] |
2563 | hidnplayr | 941 | lea edx, [ebp + thread_data.buffer] |
2609 | hidnplayr | 942 | xor edi, edi |
943 | mcall send |
||
944 | pop ebx ecx |
||
2581 | hidnplayr | 945 | cmp eax, -1 |
2598 | hidnplayr | 946 | je socketerror ; FIXME: not the correct error |
2571 | hidnplayr | 947 | |
2609 | hidnplayr | 948 | ; cmp eax, ecx |
2563 | hidnplayr | 949 | |
2602 | hidnplayr | 950 | |
951 | cmp ecx, BUFFERSIZE |
||
952 | |||
2563 | hidnplayr | 953 | |
954 | invoke file.close, ebx |
||
955 | |||
2602 | hidnplayr | 956 | invoke con_write_asciiz, str2b |
957 | |||
2892 | hidnplayr | 958 | mov [ebp + thread_data.mode], MODE_NOTREADY |
959 | |||
2609 | hidnplayr | 960 | |
961 | sendFTP "226 Transfer OK, closing connection" |
||
2563 | hidnplayr | 962 | |
2598 | hidnplayr | 963 | |
2554 | hidnplayr | 964 | .cannot_open: |
965 | |||
2571 | hidnplayr | 966 | invoke con_write_asciiz, str_notfound |
2602 | hidnplayr | 967 | invoke con_set_flags, 0x07 |
968 | |||
969 | sendFTP "550 No such file" |
||
2571 | hidnplayr | 970 | |
2598 | hidnplayr | 971 | |
2571 | hidnplayr | 972 | |
973 | |||
2598 | hidnplayr | 974 | |
975 | |||
976 | ; |
||
977 | ; Store a file on the server. |
||
978 | ; |
||
979 | ;------------------------------------------------ |
||
980 | align 4 |
||
981 | cmdSTOR: |
||
2554 | hidnplayr | 982 | |
983 | test [ebp + thread_data.permissions], PERMISSION_WRITE |
||
984 | |||
2609 | hidnplayr | 985 | |
2598 | hidnplayr | 986 | |
2578 | hidnplayr | 987 | |
2598 | hidnplayr | 988 | |
989 | jnz abort_transfer |
||
2609 | hidnplayr | 990 | |
2598 | hidnplayr | 991 | ;;;; |
992 | |||
993 | ret |
||
994 | |||
2554 | hidnplayr | 995 | ;------------------------------------------------ |
996 | |||
2598 | hidnplayr | 997 | ; |
998 | ; Send information about the system. |
||
999 | ; |
||
1000 | ;------------------------------------------------ |
||
1001 | align 4 |
||
1002 | cmdSYST: |
||
2554 | hidnplayr | 1003 | |
1004 | sendFTP "215 UNIX type: L8" |
||
1005 | |||
2598 | hidnplayr | 1006 | |
2554 | hidnplayr | 1007 | ;------------------------------------------------ |
1008 | |||
2598 | hidnplayr | 1009 | ; |
1010 | ; Choose the file transfer type. |
||
1011 | ; |
||
1012 | ;------------------------------------------------ |
||
1013 | align 4 |
||
1014 | cmdTYPE: |
||
2554 | hidnplayr | 1015 | |
1016 | cmp ecx, 6 |
||
1017 | |||
2560 | hidnplayr | 1018 | |
1019 | mov al, byte[esi+5] |
||
1020 | |||
1021 | |||
1022 | cmp al, 'A' |
||
1023 | |||
1024 | cmp al, 'E' |
||
1025 | je .ebdic |
||
1026 | cmp al, 'I' |
||
1027 | je .image |
||
1028 | cmp al, 'L' |
||
1029 | je .local |
||
1030 | |||
1031 | jmp parse_cmd.error |
||
1032 | |||
1033 | .ascii: |
||
1034 | |||
1035 | jmp .subtype |
||
2609 | hidnplayr | 1036 | |
2560 | hidnplayr | 1037 | .ebdic: |
1038 | |||
1039 | |||
2609 | hidnplayr | 1040 | .subtype: |
2560 | hidnplayr | 1041 | |
1042 | jb .non_print |
||
1043 | |||
1044 | mov al, byte[esi+7] |
||
1045 | |||
1046 | |||
1047 | cmp al, 'N' |
||
1048 | |||
1049 | cmp al, 'T' |
||
1050 | je .telnet |
||
1051 | cmp al, 'C' |
||
1052 | je .asacc |
||
1053 | cmp al, 0x20 |
||
1054 | jb .non_print |
||
2878 | hidnplayr | 1055 | |
1056 | jmp parse_cmd.error |
||
2560 | hidnplayr | 1057 | |
1058 | .non_print: |
||
1059 | |||
1060 | jmp .ok |
||
2609 | hidnplayr | 1061 | |
2560 | hidnplayr | 1062 | .telnet: |
1063 | |||
1064 | jmp .ok |
||
2609 | hidnplayr | 1065 | |
2560 | hidnplayr | 1066 | .asacc: |
1067 | |||
1068 | jmp .ok |
||
2609 | hidnplayr | 1069 | |
2560 | hidnplayr | 1070 | .image: |
1071 | |||
1072 | jmp .ok |
||
2609 | hidnplayr | 1073 | |
2560 | hidnplayr | 1074 | .local: |
1075 | |||
1076 | jb parse_cmd.error |
||
1077 | |||
1078 | mov al, byte[esi+7] |
||
1079 | |||
1080 | jb parse_cmd.error ; FIXME: this is not the correct errormessage |
||
1081 | cmp al, 9 |
||
2602 | hidnplayr | 1082 | ja parse_cmd.error ; FIXME |
2560 | hidnplayr | 1083 | or al, TYPE_LOCAL |
2602 | hidnplayr | 1084 | mov [ebp + thread_data.type], al |
2560 | hidnplayr | 1085 | |
2609 | hidnplayr | 1086 | .ok: |
2560 | hidnplayr | 1087 | |
1088 | ret |
||
2598 | hidnplayr | 1089 | |
2554 | hidnplayr | 1090 | ;------------------------------------------------ |
1091 | |||
2598 | hidnplayr | 1092 | ; |
1093 | ; Login to the server, step one of two. ;;; TODO: prevent buffer overflow! |
||
1094 | ; |
||
2602 | hidnplayr | 1095 | ;------------------------------------------------ |
2598 | hidnplayr | 1096 | align 4 |
1097 | cmdUSER: |
||
2554 | hidnplayr | 1098 | |
1099 | lea esi, [esi + 5] |
||
1100 | |||
2598 | hidnplayr | 1101 | .loop: |
2609 | hidnplayr | 1102 | lodsb |
2602 | hidnplayr | 1103 | stosb |
2563 | hidnplayr | 1104 | cmp al, 0x20 |
1105 | jae .loop |
||
2598 | hidnplayr | 1106 | mov byte [edi-1], 0 |
1107 | |||
1108 | lea esi, [ebp + thread_data.fpath] |
||
2562 | hidnplayr | 1109 | |
2609 | hidnplayr | 1110 | invoke ini.get_str, path2, esi, str_home, eax, 1024, str_infinity |
1111 | cmp eax, -1 |
||
2602 | hidnplayr | 1112 | je .login_fail |
2598 | hidnplayr | 1113 | cmp dword [esi], -1 |
1114 | je .login_fail |
||
2602 | hidnplayr | 1115 | |
1116 | mov word [ebp + thread_data.work_dir], "/" ; "/", 0 |
||
2562 | hidnplayr | 1117 | |
2609 | hidnplayr | 1118 | invoke con_write_asciiz, str_logged_in |
2563 | hidnplayr | 1119 | |
2602 | hidnplayr | 1120 | .sendstr: |
2609 | hidnplayr | 1121 | sendFTP "331 Please specify the password" |
2598 | hidnplayr | 1122 | ret |
1123 | |||
2563 | hidnplayr | 1124 | .login_fail: |
1125 | |||
2598 | hidnplayr | 1126 | mov [ebp + thread_data.state], STATE_LOGIN_FAIL |
2610 | hidnplayr | 1127 | jmp .sendstr |
2609 | hidnplayr | 1128 | |
2598 | hidnplayr | 1129 | align 4 |
2571 | hidnplayr | 1130 | |
2598 | hidnplayr | 1131 | sendFTP "530 Can't change to another user" |
1132 | ret |
||
1133 |