Subversion Repositories Kolibri OS

;

; Kolibrios FTP Daemon

;

; hidnplayr@gmail.com

;

; GPLv2

;

BUFFERSIZE              = 8192

STATE_DISCONNECTED      = 0

STATE_CONNECTED         = 1

STATE_LOGIN             = 2

STATE_ACTIVE            = 3

TYPE_UNDEF              = 0

TYPE_ASCII              = 00000100b

TYPE_EBDIC              = 00001000b

; subtypes for ascii & ebdic (np = default)

TYPE_NP                 = 00000001b     ; non printable

TYPE_TELNET             = 00000010b

TYPE_ASA                = 00000011b

TYPE_IMAGE              = 01000000b     ; binary data

TYPE_LOCAL              = 10000000b     ; bits per byte must be specified

                                        ; lower 4 bits will hold this value

MODE_NOTREADY           = 0

MODE_ACTIVE             = 1

MODE_PASSIVE_WAIT       = 2

MODE_PASSIVE_OK         = 3

format binary as ""

use32

        db      'MENUET01'      ; signature

        dd      1               ; header version

        dd      start           ; entry point

        dd      i_end           ; initialized size

        dd      mem+0x1000      ; required memory

        dd      mem+0x1000      ; stack pointer

        dd      params          ; parameters

        dd      path            ; path

include '../macros.inc'

purge mov,add,sub

include '../proc32.inc'

include '../dll.inc'

include '../struct.inc'

include '../libio.inc'

include '../network.inc'

include 'commands.inc'

align 4

start:

; load libraries

        stdcall dll.Load, @IMPORT

        test    eax, eax

        jnz     exit

        mcall   68, 11                  ; init heap

; find path to main settings file

        mov     edi, path               ; Calculate the length of zero-terminated string

        xor     al, al

        mov     ecx, 1024

        repne   scasb

        dec     edi

        mov     esi, filename           ; append it with '.ini'

        movsd

        movsb

; initialize console

        push    1

        call    [con_start]

        push    title

        push    -1

        push    -1

        push    -1

        push    -1

        call    [con_init]

        mcall   40, 1 shl 7             ; we only want network events

        invoke  ini.get_int, path, str_ftpd, str_port, 21

        mov     [sockaddr1.port], ax

        push    eax

        push    str1

        call    [con_printf]

        mcall   socket, AF_INET4, SOCK_STREAM, 0

        cmp     eax, -1

        je      sock_err

        mov     [socketnum], eax

        push    str2

        call    [con_write_asciiz]

;        mcall   setsockopt, [socketnum], SOL_SOCKET, SO_REUSEADDR, &yes,

;        cmp     eax, -1

;        je      opt_err

        mcall   bind, [socketnum], sockaddr1, sockaddr1.length

        cmp     eax, -1

        je      bind_err

        push    str2

        call    [con_write_asciiz]

        invoke  ini.get_int, path, str_ftpd, str_conn, 1        ; Backlog (max connections)

        mov     edx, eax

        push    str2

        call    [con_write_asciiz]

        mcall   listen, [socketnum]

        cmp     eax, -1

        je      listen_err

        push    str2b

        call    [con_write_asciiz]

mainloop:

        mcall   10                              ; Wait here for incoming connections on the base socket (socketnum)

        mcall   51, 1, threadstart, 0           ; Start a new thread for every incoming connection

                                                ; NOTE: upon initialisation of the thread, stack will not be available!

        jmp     mainloop

        diff16  "threadstart", 0, $

threadstart:

        mcall   68, 12, sizeof.thread_data      ; allocate the thread data struct

        cmp     eax, -1

        je      exit

        lea     esp, [eax + thread_data.stack]  ; init stack

        push    eax                             ; save pointer to thread_data on stack

        mcall   40, 1 shl 7                     ; we only want network events for this thread

        pushd   0x03

        call    [con_set_flags]

        push    str8

        call    [con_write_asciiz]                                              ; print on the console that we have created the new thread successfully

        pushd   0x07

        call    [con_set_flags]

        mcall   accept, [socketnum], sockaddr1, sockaddr1.length                ; time to accept the awaiting connection..

        cmp     eax, -1

        je      thread_exit

        mov     edx, [esp]                                                      ; pointer to thread_data

        mov     [edx + thread_data.socketnum], eax

        mcall   send, [edx + thread_data.socketnum], str220, str220.length, 0   ; send welcome string to the FTP client

threadloop:

        mcall   10

        mov     edx, [esp]                                                      ; pointer to thread_data

        cmp     [edx + thread_data.mode], MODE_PASSIVE_WAIT

        jne     @f

        mov     ecx, [edx + thread_data.passivesocknum]

        lea     edx, [edx + thread_data.datasock]

        mov     esi, sizeof.thread_data.datasock

        mcall   accept

        mov     edx, [esp]                                                      ; pointer to thread_data

        cmp     eax, -1

        je      @f

        mov     [edx + thread_data.datasocketnum], eax

        mov     [edx + thread_data.mode], MODE_PASSIVE_OK

        push    str_datasock

        call    [con_write_asciiz]                                              ; print on the console that the datasock is now ready

       @@:

        mov     ecx, [edx + thread_data.socketnum]

        lea     edx, [edx + thread_data.buffer]

        mov     esi, sizeof.thread_data.buffer

        mcall   recv

        cmp     eax, -1                                                         ; error?

        je      threadloop

        or      eax, eax                                                        ; 0 bytes read?

        jz      threadloop

        push    eax                                                             ; save number of bytes read on stack

        mov     edx, [esp+4]                                                    ; pointer to thread_data

        mov     byte [edx + thread_data.buffer + eax], 0                        ; append received data with a 0 byte

        pushd   0x02                                                            ; print received data to console (in green color)

        call    [con_set_flags]

        push    str_newline

        call    [con_write_asciiz]

        lea     eax, [edx + thread_data.buffer]

        push    eax

        call    [con_write_asciiz]

        pushd   0x07

        call    [con_set_flags]

        pop     ecx                                                             ; number of bytes read

        lea     esi, [edx + thread_data.buffer]

        call    parse_cmd

        jmp     threadloop

listen_err:

        pushd   0x0c

        call    [con_set_flags]

        push    str3

        call    [con_write_asciiz]

        jmp     done

bind_err:

        pushd   0x0c

        call    [con_set_flags]

        push    str4

        call    [con_write_asciiz]

        jmp     done

sock_err:

        pushd   0x0c

        call    [con_set_flags]

        push    str6

        call    [con_write_asciiz]

        jmp     done

done:

        call    [con_getch2]

        push    1

        call    [con_exit]

exit:

        mcall   -1

thread_exit:

        push    str_bye

        call    [con_write_asciiz]      ; say bye bye

        pop     ecx                     ; get the thread_data pointer from stack

        mcall   68, 13                  ; free the memory

        mcall   -1                      ; and kill the thread

; initialized data

title           db 'KolibriOS FTP daemon 0.1', 0

str1            db 'Starting FTP daemon on port %u', 0

str2            db '.', 0

str2b           db ' OK!',10,0

str3            db 'Listen error',10,0

str4            db 'Bind error',10,0

;str5            db 'Setsockopt error.',10,10,0

str6            db 'Could not open socket',10,0

str7            db 'Got data!',10,10,0

str8            db 10,'New thread created!',10,0

str_bye         db 10,'Closing thread!',10,0

str_logged_in   db 'Login ok',10,0

str_pass_ok     db 'Password ok - Logged in',10,0

str_pwd         db 'Current directory is "%s"\n',0

str_err2        db 'ERROR: cannot open directory',10,0

str_datasock    db 'Passive data socket connected!',10,0

str_notfound    db 'ERROR: file not found',10,0

str_sockerr     db 'ERROR: socket error',10,0

str_newline     db 10, 0

str_mask        db '*', 0

months          dd 'Jan '

                dd 'Feb '

                dd 'Mar '

                dd 'Apr '

                dd 'May '

                dd 'Jun '

                dd 'Jul '

                dd 'Aug '

                dd 'Sep '

                dd 'Oct '

                dd 'Nov '

                dd 'Dec '

filename        db '.ini', 0

str_port        db 'port', 0

str_ftpd        db 'ftpd', 0

str_conn        db 'conn', 0

sockaddr1:

                dw AF_INET4

  .port         dw 21

  .ip           dd 0

                rb 10

  .length       = $ - sockaddr1

; import

align 4

@IMPORT:

library console,                'console.obj',\

        libini,                 'libini.obj', \

        libio,                  'libio.obj'

import  console,\

        con_start,              'START',\

        con_init,               'con_init',\

        con_write_asciiz,       'con_write_asciiz',\

        con_exit,               'con_exit',\

        con_gets,               'con_gets',\

        con_cls,                'con_cls',\

        con_printf,             'con_printf',\

        con_getch2,             'con_getch2',\

        con_set_cursor_pos,     'con_set_cursor_pos',\

        con_set_flags,          'con_set_flags'

import  libini,\

        ini.get_str,            'ini_get_str',\

        ini.get_int,            'ini_get_int'

import  libio,\

        libio.init,             'lib_init',\

        file.size,              'file_size',\

        file.open,              'file_open',\

        file.read,              'file_read',\

        file.close,             'file_close',\

        file.find.first,        'file_find_first',\

        file.find.next,         'file_find_next',\

        file.find.close,        'file_find_close'

i_end:

; uninitialised data

        socketnum       dd ?

        path            rb 1024

        params          rb 1024

mem: