WebSVN – Kolibri OS – Blame – /programs/network/ftpd/ftpd.asm

Rev	Author	Line No.	Line
3545	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
6835	hidnplayr	3	;; Copyright (C) KolibriOS team 2010-2017. All rights reserved. ;;
3545	hidnplayr	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; ftpd.asm - FTP Daemon for KolibriOS ;;
		7	;; ;;
		8	;; Written by hidnplayr@kolibrios.org ;;
		9	;; ;;
		10	;; GNU GENERAL PUBLIC LICENSE ;;
		11	;; Version 2, June 1991 ;;
		12	;; ;;
		13	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		14
		15	DEBUG = 0 ; if set to one, program will run in a single thread
		16
		17	BUFFERSIZE = 8192
		18
		19	; using multiple's of 4
		20	STATE_CONNECTED = 0*4
		21	STATE_LOGIN = 1*4
		22	STATE_LOGIN_FAIL = 2*4 ; When an invalid username was given
		23	STATE_ACTIVE = 3*4
		24
		25	TYPE_UNDEF = 0
		26
		27	TYPE_ASCII = 00000100b
		28	TYPE_EBDIC = 00001000b
		29	; subtypes for ascii & ebdic (np = default)
		30	TYPE_NP = 00000001b ; non printable
		31	TYPE_TELNET = 00000010b
		32	TYPE_ASA = 00000011b
		33
		34	TYPE_IMAGE = 01000000b ; binary data
		35	TYPE_LOCAL = 10000000b ; bits per byte must be specified
		36	; lower 4 bits will hold this value
		37	MODE_NOTREADY = 0
		38	MODE_ACTIVE = 1
		39	MODE_PASSIVE_WAIT = 2
		40	MODE_PASSIVE_OK = 3
		41	MODE_PASSIVE_FAILED = 4
		42
		43	PERMISSION_EXEC = 1b ; LIST
		44	PERMISSION_READ = 10b
		45	PERMISSION_WRITE = 100b
		46	PERMISSION_DELETE = 1000b
		47	PERMISSION_CD = 10000b ; Change Directory
		48
		49	ABORT = 1 shl 31
		50
		51	format binary as ""
		52
		53	use32
		54
		55	org 0x0
		56
		57	db 'MENUET01' ; signature
		58	dd 1 ; header version
		59	dd start ; entry point
		60	dd i_end ; initialized size
		61	dd mem+0x1000 ; required memory
		62	dd mem+0x1000 ; stack pointer
		63	dd params ; parameters
		64	dd path ; path
		65
3618	hidnplayr	66	include '../../macros.inc'
3545	hidnplayr	67	purge mov,add,sub
3618	hidnplayr	68	include '../../proc32.inc'
		69	include '../../dll.inc'
		70	include '../../struct.inc'
6835	hidnplayr	71	include '../../develop/libraries/libs-dev/libio/libio.inc'
3545	hidnplayr	72
3618	hidnplayr	73	include '../../network.inc'
3545	hidnplayr	74
		75	macro sendFTP str {
		76	local string, length
		77	xor edi, edi
		78	mcall send, [ebp + thread_data.socketnum], string, length
3819	hidnplayr	79	invoke con_write_asciiz, string
3545	hidnplayr	80
		81	iglobal
3819	hidnplayr	82	string db str, 13, 10, 0
		83	length = $ - string - 1
3545	hidnplayr	84	\}
		85	}
		86
		87	include 'commands.inc'
		88
		89	start:
		90	mcall 68, 11 ; init heap
3819	hidnplayr	91	mcall 40, EVM_STACK ; we only want network events
3545	hidnplayr	92
		93	; load libraries
		94	stdcall dll.Load, @IMPORT
		95	test eax, eax
		96	jnz exit
		97
		98	; find path to main settings file (ftpd.ini)
		99	mov edi, path ; Calculate the length of zero-terminated string
		100	xor al, al
		101	mov ecx, 1024
		102	repne scasb
		103	dec edi
		104	mov esi, str_ini ; append it with '.ini', 0
		105	movsd
		106	movsb
		107
		108	; now create the second path (users.ini)
		109	std
		110	mov al, '/'
		111	repne scasb
		112	lea ecx, [edi - path + 2]
		113	cld
		114	mov esi, path
		115	mov edi, path2
		116	rep movsb
		117	mov esi, str_users
		118	movsd
		119	movsd
		120	movsw
		121
		122	; initialize console
		123	invoke con_start, 1
		124	invoke con_init, -1, -1, -1, -1, title
		125
		126	; get settings from ini
		127	invoke ini.get_str, path, str_ftpd, str_ip, ini_buf, 16, 0
		128	mov esi, ini_buf
		129	mov cl, '.'
		130	call ip_to_dword
		131	mov [serverip], ebx
		132
		133	invoke ini.get_int, path, str_ftpd, str_port, 21
		134	xchg al, ah
		135	mov [sockaddr1.port], ax
		136
		137	xchg al, ah
		138	invoke con_printf, str1, eax
		139	add esp, 8
		140
		141	; open listening socket
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
		145	mov [socketnum], eax
		146
		147	invoke con_write_asciiz, str2
		148
		149	; mcall setsockopt, [socketnum], SOL_SOCKET, SO_REUSEADDR, &yes,
		150	; cmp eax, -1
		151	; je opt_err
		152
		153	mcall bind, [socketnum], sockaddr1, sockaddr1.length
		154	cmp eax, -1
		155	je bind_err
		156
		157	invoke con_write_asciiz, str2
		158
		159	invoke ini.get_int, path, str_ftpd, str_conn, 1 ; Backlog (max connections)
		160	mov edx, eax
		161
		162	invoke con_write_asciiz, str2
		163
		164	mcall listen, [socketnum]
		165	cmp eax, -1
		166	je listen_err
		167
		168	invoke con_write_asciiz, str2b
		169
		170	invoke ini.get_int, path, str_pasv, str_start, 2000
		171	mov [pasv_start], ax
		172	invoke ini.get_int, path, str_pasv, str_end, 5000
		173	mov [pasv_end], ax
		174
		175	mov [alive], 1
		176
		177	mainloop:
		178	mcall 23, 100 ; Wait here for incoming connections on the base socket (socketnum)
		179	; One second timeout, we will use this to check if console is still working
		180
		181	test eax, eax ; network event?
		182	jz .checkconsole
		183
		184	if DEBUG
		185	jmp threadstart
		186	else
		187	mcall 51, 1, threadstart, 0 ; Start a new thread for every incoming connection
		188	; NOTE: upon initialisation of the thread, stack will not be available!
		189	end if
		190	jmp mainloop
		191
		192	.checkconsole:
		193
		194	invoke con_get_flags ; Is console still running?
		195	test eax, 0x0200
		196	jz mainloop
		197	mcall close, [socketnum] ; kill the listening socket
		198	mov [alive], 0
		199	mcall -1 ; and exit
		200
		201	diff16 "threadstart", 0, $
		202
		203	threadstart:
		204	;;; mcall 68, 11 ; init heap
		205	mcall 68, 12, sizeof.thread_data ; allocate the thread data struct
		206	test eax, eax
		207	je exit
		208
		209	lea esp, [eax + thread_data.stack] ; init stack
		210	mov ebp, eax
		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
		215	or ecx, -1
		216	mcall 9
		217	mov eax, dword [ebp + thread_data.buffer + 30] ; PID is at offset 30
		218	mov [ebp + thread_data.pid], eax
		219
		220	invoke con_set_flags, 0x03
		221	invoke con_printf, str8, [ebp + thread_data.pid] ; print on the console that we have created the new thread successfully
		222	add esp, 8 ; balance stack
		223	invoke con_set_flags, 0x07
		224
		225	mcall accept, [socketnum], sockaddr1, sockaddr1.length ; time to accept the awaiting connection..
		226	cmp eax, -1
		227	je thread_exit
		228	mov [ebp + thread_data.socketnum], eax
		229
		230	if DEBUG
		231	mcall close, [socketnum] ; close the listening socket
		232	end if
		233
		234	mov [ebp + thread_data.state], STATE_CONNECTED
		235	mov [ebp + thread_data.permissions], 0
		236	mov [ebp + thread_data.mode], MODE_NOTREADY
		237	lea eax, [ebp + thread_data.buffer]
		238	mov [ebp + thread_data.buffer_ptr], eax
		239	mov [ebp + thread_data.passivesocknum], -1
		240
		241	sendFTP "220 Welcome to KolibriOS FTP daemon"
		242
		243	diff16 "threadloop", 0, $
		244	threadloop:
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
		247	; cmp eax, -1
		248	; je thread_exit
3545	hidnplayr	249
		250	cmp [alive], 0 ; Did main thread take a run for it?
		251	je thread_exit
		252
3819	hidnplayr	253	mcall 23, 100 ; Wait for network event
		254	test eax, eax
		255	jz threadloop
3545	hidnplayr	256
		257	cmp [ebp + thread_data.mode], MODE_PASSIVE_WAIT
		258	jne .not_passive
		259	mov ecx, [ebp + thread_data.passivesocknum]
		260	lea edx, [ebp + thread_data.datasock]
		261	mov esi, sizeof.thread_data.datasock
		262	mcall accept
		263	cmp eax, -1
		264	je .not_passive
		265	mov [ebp + thread_data.datasocketnum], eax
		266	mov [ebp + thread_data.mode], MODE_PASSIVE_OK
		267	mcall close ; [ebp + thread_data.passivesocknum]
		268	mov [ebp + thread_data.passivesocknum], -1
		269
		270	invoke con_write_asciiz, str_datasock
		271	.not_passive:
		272
		273	mov ecx, [ebp + thread_data.socketnum]
		274	mov edx, [ebp + thread_data.buffer_ptr]
		275	mov esi, sizeof.thread_data.buffer ;;; FIXME
3704	hidnplayr	276	mov edi, MSG_DONTWAIT
3545	hidnplayr	277	mcall recv
		278	inc eax ; error? (-1)
		279	jz threadloop
		280	dec eax ; 0 bytes read?
		281	jz threadloop
		282
		283	mov edi, [ebp + thread_data.buffer_ptr]
		284	add [ebp + thread_data.buffer_ptr], eax
		285
		286	; Check if we received a newline character, if not, wait for more data
		287	mov ecx, eax
3819	hidnplayr	288	mov al, 10
3545	hidnplayr	289	repne scasb
		290	jne threadloop
		291
3819	hidnplayr	292	cmp word[edi-1], 0x0a0d
		293	jne .got_command
		294	dec edi
		295
3545	hidnplayr	296	; We got a command!
3819	hidnplayr	297	.got_command:
		298	mov byte [edi], 0 ; append string with zero byte
3545	hidnplayr	299	lea esi, [ebp + thread_data.buffer]
		300	mov ecx, [ebp + thread_data.buffer_ptr]
		301	sub ecx, esi
		302	mov [ebp + thread_data.buffer_ptr], esi ; reset buffer ptr
		303
		304	invoke con_set_flags, 0x02 ; print received data to console (in green color)
		305	invoke con_write_asciiz, str_newline
		306	invoke con_write_asciiz, esi
		307	invoke con_set_flags, 0x07
		308
		309	push threadloop
		310	jmp parse_cmd
		311
		312	listen_err:
		313	invoke con_set_flags, 0x0c ; print errors in red
		314	invoke con_write_asciiz, str3
		315	jmp done
		316
		317	bind_err:
		318	invoke con_set_flags, 0x0c ; print errors in red
		319	invoke con_write_asciiz, str4
		320	jmp done
		321
		322	sock_err:
		323	invoke con_set_flags, 0x0c ; print errors in red
		324	invoke con_write_asciiz, str6
		325	jmp done
		326
		327	done:
		328	invoke con_exit, 0
		329	exit:
		330	mcall -1
		331
		332
		333	thread_exit:
		334	invoke con_set_flags, 0x03 ; print thread info in blue
		335	invoke con_printf, str_bye, [ebp + thread_data.pid] ; print on the console that we are about to kill the thread
		336	add esp, 8 ; balance stack
		337	mcall 68, 13, ebp ; free the memory
		338	mcall -1 ; and kill the thread
		339
		340
		341	; initialized data
		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
		346	str2b db ' OK!',10,0
		347	str3 db 'Listen error',10,0
		348	str4 db 10,'ERROR: local port is already in use.',10,0
		349	;str5 db 'Setsockopt error.',10,10,0
		350	str6 db 'ERROR: Could not open socket.',10,0
		351	str7 db 'Got data!',10,10,0
		352	str8 db 10,'Thread %d created',10,0
		353	str_bye db 10,'Thread %d killed',10,0
		354
		355	str_logged_in db 'Login ok',10,0
		356	str_pass_ok db 'Password ok',10,0
		357	str_pass_err db 'Password/Username incorrect',10,0
		358	str_pwd db 'Current directory is "%s"\n',0
		359	str_err2 db 'ERROR: cannot open the directory.',10,0
		360	str_datasock db 'Passive data socket connected.',10,0
3824	hidnplayr	361	str_datasock2 db 'Active data socket connected.',10,0
		362	str_alopen db 'Data connection already open.',10,0
3545	hidnplayr	363	str_notfound db 'ERROR: file not found.',10,0
		364	str_sockerr db 'ERROR: socket error.',10,0
		365
		366	str_newline db 10, 0
		367	str_mask db '*', 0
		368	str_infinity db 0xff, 0xff, 0xff, 0xff, 0
		369
		370	months dd 'Jan '
		371	dd 'Feb '
		372	dd 'Mar '
		373	dd 'Apr '
		374	dd 'May '
		375	dd 'Jun '
		376	dd 'Jul '
		377	dd 'Aug '
		378	dd 'Sep '
		379	dd 'Oct '
		380	dd 'Nov '
		381	dd 'Dec '
		382
		383	str_users db 'users'
		384	str_ini db '.ini', 0
		385	str_port db 'port', 0
		386	str_ftpd db 'ftpd', 0
		387	str_conn db 'conn', 0
		388	str_ip db 'ip', 0
		389	str_pass db 'pass', 0
		390	str_home db 'home', 0
		391	str_mode db 'mode', 0
		392	str_pasv db 'pasv', 0
		393	str_start db 'start', 0
		394	str_end db 'end', 0
		395
		396
		397	sockaddr1:
		398	dw AF_INET4
		399	.port dw 0
		400	.ip dd 0
		401	rb 10
		402	.length = $ - sockaddr1
		403
		404	; import
		405
		406	align 4
		407	@IMPORT:
		408
		409	diff16 "import", 0, $
		410
		411	library console, 'console.obj',\
		412	libini, 'libini.obj', \
		413	libio, 'libio.obj'
		414
		415	import console,\
		416	con_start, 'START',\
		417	con_init, 'con_init',\
		418	con_write_asciiz, 'con_write_asciiz',\
		419	con_exit, 'con_exit',\
		420	con_gets, 'con_gets',\
		421	con_cls, 'con_cls',\
		422	con_printf, 'con_printf',\
		423	con_getch2, 'con_getch2',\
		424	con_set_cursor_pos, 'con_set_cursor_pos',\
		425	con_set_flags, 'con_set_flags',\
		426	con_get_flags, 'con_get_flags'
		427
		428	import libini,\
		429	ini.get_str, 'ini_get_str',\
		430	ini.get_int, 'ini_get_int'
		431
		432	import libio,\
		433	file.size, 'file_size',\
		434	file.open, 'file_open',\
		435	file.read, 'file_read',\
		436	file.close, 'file_close',\
		437	file.find.first, 'file_find_first',\
		438	file.find.next, 'file_find_next',\
		439	file.find.close, 'file_find_close'
		440
		441
		442	IncludeIGlobals
		443
		444
		445	i_end:
		446
		447	diff16 "i_end", 0, $
		448
		449	; uninitialised data
		450
		451	socketnum dd ?
		452	path rb 1024
		453	path2 rb 1024
		454	params rb 1024
		455	serverip dd ?
		456	pasv_start dw ?
		457	pasv_end dw ?
		458	pasv_port dw ?
		459
		460	ini_buf rb 3*4+3+1
		461
		462	alive db ?
		463
		464	mem:
		465

Subversion Repositories Kolibri OS

(root)/programs/network/ftpd/ftpd.asm – Rev 6835