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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3618 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2010-2013. All rights reserved. ;; |
3545 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ftpd.asm - FTP Daemon for KolibriOS ;; |
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7 | ;; ;; |
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8 | ;; Written by hidnplayr@kolibrios.org ;; |
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9 | ;; ;; |
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10 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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11 | ;; Version 2, June 1991 ;; |
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12 | ;; ;; |
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13 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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14 | |||
15 | DEBUG = 0 ; if set to one, program will run in a single thread |
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16 | |||
17 | BUFFERSIZE = 8192 |
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18 | |||
19 | ; using multiple's of 4 |
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20 | STATE_CONNECTED = 0*4 |
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21 | STATE_LOGIN = 1*4 |
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22 | STATE_LOGIN_FAIL = 2*4 ; When an invalid username was given |
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23 | STATE_ACTIVE = 3*4 |
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24 | |||
25 | TYPE_UNDEF = 0 |
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26 | |||
27 | TYPE_ASCII = 00000100b |
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28 | TYPE_EBDIC = 00001000b |
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29 | ; subtypes for ascii & ebdic (np = default) |
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30 | TYPE_NP = 00000001b ; non printable |
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31 | TYPE_TELNET = 00000010b |
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32 | TYPE_ASA = 00000011b |
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33 | |||
34 | TYPE_IMAGE = 01000000b ; binary data |
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35 | TYPE_LOCAL = 10000000b ; bits per byte must be specified |
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36 | ; lower 4 bits will hold this value |
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37 | MODE_NOTREADY = 0 |
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38 | MODE_ACTIVE = 1 |
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39 | MODE_PASSIVE_WAIT = 2 |
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40 | MODE_PASSIVE_OK = 3 |
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41 | MODE_PASSIVE_FAILED = 4 |
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42 | |||
43 | PERMISSION_EXEC = 1b ; LIST |
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44 | PERMISSION_READ = 10b |
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45 | PERMISSION_WRITE = 100b |
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46 | PERMISSION_DELETE = 1000b |
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47 | PERMISSION_CD = 10000b ; Change Directory |
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48 | |||
49 | ABORT = 1 shl 31 |
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50 | |||
51 | format binary as "" |
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52 | |||
53 | use32 |
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54 | |||
55 | org 0x0 |
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56 | |||
57 | db 'MENUET01' ; signature |
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58 | dd 1 ; header version |
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59 | dd start ; entry point |
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60 | dd i_end ; initialized size |
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61 | dd mem+0x1000 ; required memory |
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62 | dd mem+0x1000 ; stack pointer |
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63 | dd params ; parameters |
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64 | dd path ; path |
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65 | |||
3618 | hidnplayr | 66 | include '../../macros.inc' |
3545 | hidnplayr | 67 | purge mov,add,sub |
3618 | hidnplayr | 68 | include '../../proc32.inc' |
69 | include '../../dll.inc' |
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70 | include '../../struct.inc' |
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71 | include '../../libio.inc' |
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3545 | hidnplayr | 72 | |
3618 | hidnplayr | 73 | include '../../network.inc' |
3545 | hidnplayr | 74 | |
75 | macro sendFTP str { |
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76 | local string, length |
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77 | xor edi, edi |
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78 | mcall send, [ebp + thread_data.socketnum], string, length |
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3819 | hidnplayr | 79 | invoke con_write_asciiz, string |
3545 | hidnplayr | 80 | |
81 | iglobal |
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3819 | hidnplayr | 82 | string db str, 13, 10, 0 |
83 | length = $ - string - 1 |
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3545 | hidnplayr | 84 | \} |
85 | } |
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86 | |||
87 | include 'commands.inc' |
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88 | |||
89 | start: |
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90 | mcall 68, 11 ; init heap |
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3819 | hidnplayr | 91 | mcall 40, EVM_STACK ; we only want network events |
3545 | hidnplayr | 92 | |
93 | ; load libraries |
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94 | stdcall dll.Load, @IMPORT |
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95 | test eax, eax |
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96 | jnz exit |
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97 | |||
98 | ; find path to main settings file (ftpd.ini) |
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99 | mov edi, path ; Calculate the length of zero-terminated string |
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100 | xor al, al |
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101 | mov ecx, 1024 |
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102 | repne scasb |
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103 | dec edi |
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104 | mov esi, str_ini ; append it with '.ini', 0 |
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105 | movsd |
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106 | movsb |
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107 | |||
108 | ; now create the second path (users.ini) |
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109 | std |
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110 | mov al, '/' |
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111 | repne scasb |
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112 | lea ecx, [edi - path + 2] |
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113 | cld |
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114 | mov esi, path |
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115 | mov edi, path2 |
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116 | rep movsb |
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117 | mov esi, str_users |
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118 | movsd |
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119 | movsd |
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120 | movsw |
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121 | |||
122 | ; initialize console |
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123 | invoke con_start, 1 |
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124 | invoke con_init, -1, -1, -1, -1, title |
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125 | |||
126 | ; get settings from ini |
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127 | invoke ini.get_str, path, str_ftpd, str_ip, ini_buf, 16, 0 |
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128 | mov esi, ini_buf |
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129 | mov cl, '.' |
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130 | call ip_to_dword |
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131 | mov [serverip], ebx |
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132 | |||
133 | invoke ini.get_int, path, str_ftpd, str_port, 21 |
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134 | xchg al, ah |
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135 | mov [sockaddr1.port], ax |
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136 | |||
137 | xchg al, ah |
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138 | invoke con_printf, str1, eax |
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139 | add esp, 8 |
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140 | |||
141 | ; open listening socket |
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3819 | hidnplayr | 142 | mcall socket, AF_INET4, SOCK_STREAM, SO_NONBLOCK ; we dont want to block on accept |
3545 | hidnplayr | 143 | cmp eax, -1 |
144 | je sock_err |
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145 | mov [socketnum], eax |
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146 | |||
147 | invoke con_write_asciiz, str2 |
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148 | |||
149 | ; mcall setsockopt, [socketnum], SOL_SOCKET, SO_REUSEADDR, &yes, |
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150 | ; cmp eax, -1 |
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151 | ; je opt_err |
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152 | |||
153 | mcall bind, [socketnum], sockaddr1, sockaddr1.length |
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154 | cmp eax, -1 |
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155 | je bind_err |
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156 | |||
157 | invoke con_write_asciiz, str2 |
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158 | |||
159 | invoke ini.get_int, path, str_ftpd, str_conn, 1 ; Backlog (max connections) |
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160 | mov edx, eax |
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161 | |||
162 | invoke con_write_asciiz, str2 |
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163 | |||
164 | mcall listen, [socketnum] |
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165 | cmp eax, -1 |
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166 | je listen_err |
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167 | |||
168 | invoke con_write_asciiz, str2b |
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169 | |||
170 | invoke ini.get_int, path, str_pasv, str_start, 2000 |
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171 | mov [pasv_start], ax |
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172 | invoke ini.get_int, path, str_pasv, str_end, 5000 |
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173 | mov [pasv_end], ax |
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174 | |||
175 | mov [alive], 1 |
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176 | |||
177 | mainloop: |
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178 | mcall 23, 100 ; Wait here for incoming connections on the base socket (socketnum) |
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179 | ; One second timeout, we will use this to check if console is still working |
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180 | |||
181 | test eax, eax ; network event? |
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182 | jz .checkconsole |
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183 | |||
184 | if DEBUG |
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185 | jmp threadstart |
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186 | else |
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187 | mcall 51, 1, threadstart, 0 ; Start a new thread for every incoming connection |
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188 | ; NOTE: upon initialisation of the thread, stack will not be available! |
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189 | end if |
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190 | jmp mainloop |
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191 | |||
192 | .checkconsole: |
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193 | |||
194 | invoke con_get_flags ; Is console still running? |
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195 | test eax, 0x0200 |
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196 | jz mainloop |
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197 | mcall close, [socketnum] ; kill the listening socket |
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198 | mov [alive], 0 |
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199 | mcall -1 ; and exit |
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200 | |||
201 | diff16 "threadstart", 0, $ |
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202 | |||
203 | threadstart: |
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204 | ;;; mcall 68, 11 ; init heap |
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205 | mcall 68, 12, sizeof.thread_data ; allocate the thread data struct |
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206 | test eax, eax |
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207 | je exit |
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208 | |||
209 | lea esp, [eax + thread_data.stack] ; init stack |
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210 | mov ebp, eax |
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211 | |||
3819 | hidnplayr | 212 | mcall 40, EVM_STACK ; we only want network events for this thread |
3545 | hidnplayr | 213 | |
214 | lea ebx, [ebp + thread_data.buffer] ; get information about the current process |
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215 | or ecx, -1 |
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216 | mcall 9 |
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217 | mov eax, dword [ebp + thread_data.buffer + 30] ; PID is at offset 30 |
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218 | mov [ebp + thread_data.pid], eax |
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219 | |||
220 | invoke con_set_flags, 0x03 |
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221 | invoke con_printf, str8, [ebp + thread_data.pid] ; print on the console that we have created the new thread successfully |
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222 | add esp, 8 ; balance stack |
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223 | invoke con_set_flags, 0x07 |
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224 | |||
225 | mcall accept, [socketnum], sockaddr1, sockaddr1.length ; time to accept the awaiting connection.. |
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226 | cmp eax, -1 |
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227 | je thread_exit |
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228 | mov [ebp + thread_data.socketnum], eax |
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229 | |||
230 | if DEBUG |
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231 | mcall close, [socketnum] ; close the listening socket |
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232 | end if |
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233 | |||
234 | mov [ebp + thread_data.state], STATE_CONNECTED |
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235 | mov [ebp + thread_data.permissions], 0 |
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236 | mov [ebp + thread_data.mode], MODE_NOTREADY |
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237 | lea eax, [ebp + thread_data.buffer] |
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238 | mov [ebp + thread_data.buffer_ptr], eax |
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239 | mov [ebp + thread_data.passivesocknum], -1 |
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240 | |||
241 | sendFTP "220 Welcome to KolibriOS FTP daemon" |
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242 | |||
243 | diff16 "threadloop", 0, $ |
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244 | threadloop: |
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3819 | hidnplayr | 245 | ;; Check if our socket is still connected |
246 | ; mcall send, [ebp + thread_data.socketnum], 0, 0 ; Try to send zero bytes, if socket is closed, this will return -1 |
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247 | ; cmp eax, -1 |
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248 | ; je thread_exit |
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3545 | hidnplayr | 249 | |
250 | cmp [alive], 0 ; Did main thread take a run for it? |
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251 | je thread_exit |
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252 | |||
3819 | hidnplayr | 253 | mcall 23, 100 ; Wait for network event |
254 | test eax, eax |
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255 | jz threadloop |
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3545 | hidnplayr | 256 | |
257 | cmp [ebp + thread_data.mode], MODE_PASSIVE_WAIT |
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258 | jne .not_passive |
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259 | mov ecx, [ebp + thread_data.passivesocknum] |
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260 | lea edx, [ebp + thread_data.datasock] |
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261 | mov esi, sizeof.thread_data.datasock |
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262 | mcall accept |
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263 | cmp eax, -1 |
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264 | je .not_passive |
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265 | mov [ebp + thread_data.datasocketnum], eax |
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266 | mov [ebp + thread_data.mode], MODE_PASSIVE_OK |
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267 | mcall close ; [ebp + thread_data.passivesocknum] |
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268 | mov [ebp + thread_data.passivesocknum], -1 |
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269 | |||
270 | invoke con_write_asciiz, str_datasock |
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271 | .not_passive: |
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272 | |||
273 | mov ecx, [ebp + thread_data.socketnum] |
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274 | mov edx, [ebp + thread_data.buffer_ptr] |
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275 | mov esi, sizeof.thread_data.buffer ;;; FIXME |
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3704 | hidnplayr | 276 | mov edi, MSG_DONTWAIT |
3545 | hidnplayr | 277 | mcall recv |
278 | inc eax ; error? (-1) |
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279 | jz threadloop |
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280 | dec eax ; 0 bytes read? |
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281 | jz threadloop |
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282 | |||
283 | mov edi, [ebp + thread_data.buffer_ptr] |
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284 | add [ebp + thread_data.buffer_ptr], eax |
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285 | |||
286 | ; Check if we received a newline character, if not, wait for more data |
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287 | mov ecx, eax |
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3819 | hidnplayr | 288 | mov al, 10 |
3545 | hidnplayr | 289 | repne scasb |
290 | jne threadloop |
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291 | |||
3819 | hidnplayr | 292 | cmp word[edi-1], 0x0a0d |
293 | jne .got_command |
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294 | dec edi |
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295 | |||
3545 | hidnplayr | 296 | ; We got a command! |
3819 | hidnplayr | 297 | .got_command: |
298 | mov byte [edi], 0 ; append string with zero byte |
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3545 | hidnplayr | 299 | lea esi, [ebp + thread_data.buffer] |
300 | mov ecx, [ebp + thread_data.buffer_ptr] |
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301 | sub ecx, esi |
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302 | mov [ebp + thread_data.buffer_ptr], esi ; reset buffer ptr |
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303 | |||
304 | invoke con_set_flags, 0x02 ; print received data to console (in green color) |
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305 | invoke con_write_asciiz, str_newline |
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306 | invoke con_write_asciiz, esi |
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307 | invoke con_set_flags, 0x07 |
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308 | |||
309 | push threadloop |
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310 | jmp parse_cmd |
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311 | |||
312 | listen_err: |
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313 | invoke con_set_flags, 0x0c ; print errors in red |
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314 | invoke con_write_asciiz, str3 |
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315 | jmp done |
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316 | |||
317 | bind_err: |
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318 | invoke con_set_flags, 0x0c ; print errors in red |
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319 | invoke con_write_asciiz, str4 |
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320 | jmp done |
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321 | |||
322 | sock_err: |
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323 | invoke con_set_flags, 0x0c ; print errors in red |
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324 | invoke con_write_asciiz, str6 |
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325 | jmp done |
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326 | |||
327 | done: |
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328 | invoke con_exit, 0 |
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329 | exit: |
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330 | mcall -1 |
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331 | |||
332 | |||
333 | thread_exit: |
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334 | invoke con_set_flags, 0x03 ; print thread info in blue |
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335 | invoke con_printf, str_bye, [ebp + thread_data.pid] ; print on the console that we are about to kill the thread |
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336 | add esp, 8 ; balance stack |
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337 | mcall 68, 13, ebp ; free the memory |
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338 | mcall -1 ; and kill the thread |
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339 | |||
340 | |||
341 | ; initialized data |
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342 | |||
3819 | hidnplayr | 343 | title db 'FTP daemon', 0 |
3545 | hidnplayr | 344 | str1 db 'Starting FTP daemon on port %u.', 0 |
345 | str2 db '.', 0 |
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346 | str2b db ' OK!',10,0 |
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347 | str3 db 'Listen error',10,0 |
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348 | str4 db 10,'ERROR: local port is already in use.',10,0 |
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349 | ;str5 db 'Setsockopt error.',10,10,0 |
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350 | str6 db 'ERROR: Could not open socket.',10,0 |
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351 | str7 db 'Got data!',10,10,0 |
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352 | str8 db 10,'Thread %d created',10,0 |
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353 | str_bye db 10,'Thread %d killed',10,0 |
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354 | |||
355 | str_logged_in db 'Login ok',10,0 |
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356 | str_pass_ok db 'Password ok',10,0 |
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357 | str_pass_err db 'Password/Username incorrect',10,0 |
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358 | str_pwd db 'Current directory is "%s"\n',0 |
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359 | str_err2 db 'ERROR: cannot open the directory.',10,0 |
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360 | str_datasock db 'Passive data socket connected.',10,0 |
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3824 | hidnplayr | 361 | str_datasock2 db 'Active data socket connected.',10,0 |
362 | str_alopen db 'Data connection already open.',10,0 |
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3545 | hidnplayr | 363 | str_notfound db 'ERROR: file not found.',10,0 |
364 | str_sockerr db 'ERROR: socket error.',10,0 |
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365 | |||
366 | str_newline db 10, 0 |
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367 | str_mask db '*', 0 |
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368 | str_infinity db 0xff, 0xff, 0xff, 0xff, 0 |
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369 | |||
370 | months dd 'Jan ' |
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371 | dd 'Feb ' |
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372 | dd 'Mar ' |
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373 | dd 'Apr ' |
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374 | dd 'May ' |
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375 | dd 'Jun ' |
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376 | dd 'Jul ' |
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377 | dd 'Aug ' |
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378 | dd 'Sep ' |
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379 | dd 'Oct ' |
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380 | dd 'Nov ' |
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381 | dd 'Dec ' |
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382 | |||
383 | str_users db 'users' |
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384 | str_ini db '.ini', 0 |
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385 | str_port db 'port', 0 |
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386 | str_ftpd db 'ftpd', 0 |
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387 | str_conn db 'conn', 0 |
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388 | str_ip db 'ip', 0 |
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389 | str_pass db 'pass', 0 |
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390 | str_home db 'home', 0 |
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391 | str_mode db 'mode', 0 |
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392 | str_pasv db 'pasv', 0 |
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393 | str_start db 'start', 0 |
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394 | str_end db 'end', 0 |
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395 | |||
396 | |||
397 | sockaddr1: |
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398 | dw AF_INET4 |
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399 | .port dw 0 |
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400 | .ip dd 0 |
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401 | rb 10 |
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402 | .length = $ - sockaddr1 |
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403 | |||
404 | ; import |
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405 | |||
406 | align 4 |
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407 | @IMPORT: |
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408 | |||
409 | diff16 "import", 0, $ |
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410 | |||
411 | library console, 'console.obj',\ |
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412 | libini, 'libini.obj', \ |
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413 | libio, 'libio.obj' |
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414 | |||
415 | import console,\ |
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416 | con_start, 'START',\ |
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417 | con_init, 'con_init',\ |
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418 | con_write_asciiz, 'con_write_asciiz',\ |
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419 | con_exit, 'con_exit',\ |
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420 | con_gets, 'con_gets',\ |
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421 | con_cls, 'con_cls',\ |
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422 | con_printf, 'con_printf',\ |
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423 | con_getch2, 'con_getch2',\ |
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424 | con_set_cursor_pos, 'con_set_cursor_pos',\ |
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425 | con_set_flags, 'con_set_flags',\ |
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426 | con_get_flags, 'con_get_flags' |
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427 | |||
428 | import libini,\ |
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429 | ini.get_str, 'ini_get_str',\ |
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430 | ini.get_int, 'ini_get_int' |
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431 | |||
432 | import libio,\ |
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433 | file.size, 'file_size',\ |
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434 | file.open, 'file_open',\ |
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435 | file.read, 'file_read',\ |
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436 | file.close, 'file_close',\ |
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437 | file.find.first, 'file_find_first',\ |
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438 | file.find.next, 'file_find_next',\ |
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439 | file.find.close, 'file_find_close' |
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440 | |||
441 | |||
442 | IncludeIGlobals |
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443 | |||
444 | |||
445 | i_end: |
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446 | |||
447 | diff16 "i_end", 0, $ |
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448 | |||
449 | ; uninitialised data |
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450 | |||
451 | socketnum dd ? |
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452 | path rb 1024 |
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453 | path2 rb 1024 |
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454 | params rb 1024 |
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455 | serverip dd ? |
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456 | pasv_start dw ? |
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457 | pasv_end dw ? |
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458 | pasv_port dw ? |
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459 | |||
460 | ini_buf rb 3*4+3+1 |
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461 | |||
462 | alive db ? |
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463 | |||
464 | mem: |
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465 |