forked from KolibriOS/kolibrios
339 lines
10 KiB
NASM
339 lines
10 KiB
NASM
;
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; Kolibrios FTP Daemon
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;
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; hidnplayr@gmail.com
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;
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; GPLv2
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;
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BUFFERSIZE = 8192
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STATE_DISCONNECTED = 0
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STATE_CONNECTED = 1
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STATE_LOGIN = 2
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STATE_ACTIVE = 3
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TYPE_UNDEF = 0
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TYPE_ASCII = 00000100b
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TYPE_EBDIC = 00001000b
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; subtypes for ascii & ebdic (np = default)
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TYPE_NP = 00000001b ; non printable
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TYPE_TELNET = 00000010b
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TYPE_ASA = 00000011b
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TYPE_IMAGE = 01000000b ; binary data
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TYPE_LOCAL = 10000000b ; bits per byte must be specified
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; lower 4 bits will hold this value
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MODE_NOTREADY = 0
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MODE_ACTIVE = 1
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MODE_PASSIVE_WAIT = 2
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MODE_PASSIVE_OK = 3
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format binary as ""
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use32
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db 'MENUET01' ; signature
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dd 1 ; header version
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dd start ; entry point
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dd i_end ; initialized size
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dd mem+0x1000 ; required memory
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dd mem+0x1000 ; stack pointer
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dd params ; parameters
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dd path ; path
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include '../macros.inc'
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purge mov,add,sub
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include '../proc32.inc'
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include '../dll.inc'
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include '../struct.inc'
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include '../libio.inc'
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include '../network.inc'
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include 'commands.inc'
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align 4
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start:
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; load libraries
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stdcall dll.Load, @IMPORT
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test eax, eax
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jnz exit
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mcall 68, 11 ; init heap
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; find path to main settings file
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mov edi, path ; Calculate the length of zero-terminated string
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xor al , al
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mov ecx, 1024
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repne scasb
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dec edi
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mov esi, filename ; append it with '.ini'
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movsd
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movsb
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; initialize console
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push 1
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call [con_start]
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push title
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push -1
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push -1
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push -1
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push -1
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call [con_init]
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mcall 40, 1 shl 7 ; we only want network events
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invoke ini.get_int, path, str_ftpd, str_port, 21
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mov [sockaddr1.port], ax
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push eax
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push str1
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call [con_printf]
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mcall socket, AF_INET4, SOCK_STREAM, 0
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cmp eax, -1
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je sock_err
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mov [socketnum], eax
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push str2
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call [con_write_asciiz]
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;; mcall setsockopt, [socketnum], SOL_SOCKET, SO_REUSEADDR, &yes,
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;; cmp eax, -1
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;; je opt_err
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mcall bind, [socketnum], sockaddr1, sockaddr1.length
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cmp eax, -1
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je bind_err
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push str2
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call [con_write_asciiz]
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invoke ini.get_int, path, str_ftpd, str_conn, 1 ; Backlog (max connections)
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mov edx, eax
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push str2
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call [con_write_asciiz]
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mcall listen, [socketnum]
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cmp eax, -1
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je listen_err
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push str2b
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call [con_write_asciiz]
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mainloop:
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mcall 10 ; Wait here for incoming connections on the base socket (socketnum)
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mcall 51, 1, threadstart, 0 ; Start a new thread for every incoming connection
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; NOTE: upon initialisation of the thread, stack will not be available!
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jmp mainloop
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threadstart:
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mcall 68, 12, sizeof.thread_data ; allocate the thread data struct
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cmp eax, -1
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je exit
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lea esp, [eax + thread_data.stack] ; init stack
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push eax ; save pointer to thread_data on stack
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mcall 40, 1 shl 7 ; we only want network events for this thread
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push str8
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call [con_write_asciiz] ; print on the console that we have created the new thread successfully
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mcall accept, [socketnum], sockaddr1, sockaddr1.length ; time to accept the awaiting connection..
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cmp eax, -1
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je thread_exit
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mov edx, [esp] ; pointer to thread_data
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mov [edx + thread_data.socketnum], eax
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mcall send, [edx + thread_data.socketnum], str220, str220.length, 0 ; send welcome string to the FTP client
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threadloop:
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mcall 10
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mov edx, [esp] ; pointer to thread_data
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cmp [edx + thread_data.mode], MODE_PASSIVE_WAIT
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jne @f
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mov ecx, [edx + thread_data.passivesocknum]
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lea edx, [edx + thread_data.datasock]
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mov esi, sizeof.thread_data.datasock
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mcall accept
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mov edx, [esp] ; pointer to thread_data
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cmp eax, -1
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je @f
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mov [edx + thread_data.datasocketnum], eax
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mov [edx + thread_data.mode], MODE_PASSIVE_OK
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push str_datasock
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call [con_write_asciiz] ; print on the console that the datasock is now ready
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@@:
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mov ecx, [edx + thread_data.socketnum]
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lea edx, [edx + thread_data.buffer]
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mov esi, sizeof.thread_data.buffer
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mcall recv
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cmp eax, -1 ; error?
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je threadloop
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or eax, eax ; 0 bytes read?
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jz threadloop
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push eax ; save number of bytes read on stack
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mov edx, [esp+4] ; pointer to thread_data
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mov byte [edx + thread_data.buffer + eax], 0 ; append received data with a 0 byte
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pushd 0x0a ; print received data to console (in green color)
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call [con_set_flags]
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lea eax, [edx + thread_data.buffer]
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push eax
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call [con_write_asciiz]
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pushd 0x07
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call [con_set_flags]
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pop ecx ; number of bytes read
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lea esi, [edx + thread_data.buffer]
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call parse_cmd
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jmp threadloop
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listen_err:
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pushd 0x0c
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call [con_set_flags]
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push str3
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call [con_write_asciiz]
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jmp done
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bind_err:
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pushd 0x0c
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call [con_set_flags]
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push str4
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call [con_write_asciiz]
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jmp done
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sock_err:
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pushd 0x0c
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call [con_set_flags]
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push str6
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call [con_write_asciiz]
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jmp done
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done:
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call [con_getch2]
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push 1
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call [con_exit]
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exit:
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mcall -1
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thread_exit:
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push str_bye
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call [con_write_asciiz] ; say bye bye
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pop ecx ; get the thread_data pointer from stack
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mcall 68, 13 ; free the memory
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mcall -1 ; and kill the thread
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; initialized data
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title db 'KolibriOS FTP daemon 0.1', 0
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str1 db 'Starting FTP daemon on port %u', 0
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str2 db '.', 0
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str2b db ' OK!',10,10,0
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str3 db 'Listen error',10,10,0
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str4 db 'Bind error',10,10,0
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;str5 db 'Setsockopt error.',10,10,0
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str6 db 'Could not open socket',10,10,0
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str7 db 'Got data!',10,10,0
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str8 db 10,'New thread created!',10,10,0
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str_bye db 10,'Closing thread!',10,10,0
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str_logged_in db 'Login ok',10,10,0
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str_pass_ok db 'Password ok - Logged in',10,10,0
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str_pwd db 'Current directory is "%s"\n',0
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str_err2 db 'ERROR: cannot open directory',10,10,0
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str_datasock db 'Passive data socket connected!',10,10,0
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str_notfound db 'ERROR: file not found',10,10,0
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str_sockerr db 'ERROR: socket error',10,10,0
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str_newline db 10, 0
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str_mask db '*', 0
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months dd 'Jan '
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dd 'Feb '
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dd 'Mar '
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dd 'Apr '
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dd 'May '
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dd 'Jun '
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dd 'Jul '
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dd 'Aug '
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dd 'Sep '
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dd 'Oct '
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dd 'Nov '
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dd 'Dec '
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filename db '.ini', 0
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str_port db 'port', 0
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str_ftpd db 'ftpd', 0
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str_conn db 'conn', 0
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sockaddr1:
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dw AF_INET4
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.port dw 21
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.ip dd 0
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rb 10
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.length = $ - sockaddr1
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; import
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align 4
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@IMPORT:
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library console, 'console.obj',\
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libini, 'libini.obj', \
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libio, 'libio.obj'
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import console,\
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con_start, 'START',\
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con_init, 'con_init',\
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con_write_asciiz, 'con_write_asciiz',\
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con_exit, 'con_exit',\
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con_gets, 'con_gets',\
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con_cls, 'con_cls',\
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con_printf, 'con_printf',\
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con_getch2, 'con_getch2',\
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con_set_cursor_pos, 'con_set_cursor_pos',\
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con_set_flags, 'con_set_flags'
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import libini,\
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ini.get_str, 'ini_get_str',\
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ini.get_int, 'ini_get_int'
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import libio,\
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libio.init, 'lib_init',\
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file.size, 'file_size',\
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file.open, 'file_open',\
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file.read, 'file_read',\
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file.close, 'file_close',\
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file.find.first, 'file_find_first',\
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file.find.next, 'file_find_next',\
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file.find.close, 'file_find_close'
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i_end:
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; uninitialised data
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socketnum dd ?
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path rb 1024
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params rb 1024
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mem:
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