2 * Copyright 1994, 1995, 2000 Neil Russell.
4 * Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de
5 * Copyright 2011 Comelit Group SpA,
6 * Luca Ceresoli <luca.ceresoli@comelit.it>
15 #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
19 /* Well known TFTP port # */
20 #define WELL_KNOWN_PORT 69
21 /* Millisecs to timeout for lost pkt */
22 #define TIMEOUT 5000UL
23 #ifndef CONFIG_NET_RETRY_COUNT
24 /* # of timeouts before giving up */
25 # define TIMEOUT_COUNT 10
27 # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2)
29 /* Number of "loading" hashes per line (for checking the image size) */
30 #define HASHES_PER_LINE 65
42 static ulong timeout_ms
= TIMEOUT
;
43 static int timeout_count_max
= TIMEOUT_COUNT
;
44 static ulong time_start
; /* Record time we started tftp */
47 * These globals govern the timeout behavior when attempting a connection to a
48 * TFTP server. tftp_timeout_ms specifies the number of milliseconds to
49 * wait for the server to respond to initial connection. Second global,
50 * tftp_timeout_count_max, gives the number of such connection retries.
51 * tftp_timeout_count_max must be non-negative and tftp_timeout_ms must be
52 * positive. The globals are meant to be set (and restored) by code needing
53 * non-standard timeout behavior when initiating a TFTP transfer.
55 ulong tftp_timeout_ms
= TIMEOUT
;
56 int tftp_timeout_count_max
= TIMEOUT_COUNT
;
59 TFTP_ERR_UNDEFINED
= 0,
60 TFTP_ERR_FILE_NOT_FOUND
= 1,
61 TFTP_ERR_ACCESS_DENIED
= 2,
62 TFTP_ERR_DISK_FULL
= 3,
63 TFTP_ERR_UNEXPECTED_OPCODE
= 4,
64 TFTP_ERR_UNKNOWN_TRANSFER_ID
= 5,
65 TFTP_ERR_FILE_ALREADY_EXISTS
= 6,
68 static struct in_addr tftp_remote_ip
;
69 /* The UDP port at their end */
70 static int tftp_remote_port
;
71 /* The UDP port at our end */
72 static int tftp_our_port
;
73 static int timeout_count
;
74 /* packet sequence number */
75 static ulong tftp_cur_block
;
76 /* last packet sequence number received */
77 static ulong tftp_prev_block
;
78 /* count of sequence number wraparounds */
79 static ulong tftp_block_wrap
;
80 /* memory offset due to wrapping */
81 static ulong tftp_block_wrap_offset
;
82 static int tftp_state
;
83 #ifdef CONFIG_TFTP_TSIZE
84 /* The file size reported by the server */
85 static int tftp_tsize
;
86 /* The number of hashes we printed */
87 static short tftp_tsize_num_hash
;
89 #ifdef CONFIG_CMD_TFTPPUT
90 /* 1 if writing, else 0 */
91 static int tftp_put_active
;
92 /* 1 if we have sent the last block */
93 static int tftp_put_final_block_sent
;
95 #define tftp_put_active 0
98 #define STATE_SEND_RRQ 1
100 #define STATE_TOO_LARGE 3
101 #define STATE_BAD_MAGIC 4
103 #define STATE_RECV_WRQ 6
104 #define STATE_SEND_WRQ 7
106 /* default TFTP block size */
107 #define TFTP_BLOCK_SIZE 512
108 /* sequence number is 16 bit */
109 #define TFTP_SEQUENCE_SIZE ((ulong)(1<<16))
111 #define DEFAULT_NAME_LEN (8 + 4 + 1)
112 static char default_filename
[DEFAULT_NAME_LEN
];
114 #ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN
117 #define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN
120 static char tftp_filename
[MAX_LEN
];
122 /* 512 is poor choice for ethernet, MTU is typically 1500.
123 * Minus eth.hdrs thats 1468. Can get 2x better throughput with
124 * almost-MTU block sizes. At least try... fall back to 512 if need be.
125 * (but those using CONFIG_IP_DEFRAG may want to set a larger block in cfg file)
127 #ifdef CONFIG_TFTP_BLOCKSIZE
128 #define TFTP_MTU_BLOCKSIZE CONFIG_TFTP_BLOCKSIZE
130 #define TFTP_MTU_BLOCKSIZE 1468
133 static unsigned short tftp_block_size
= TFTP_BLOCK_SIZE
;
134 static unsigned short tftp_block_size_option
= TFTP_MTU_BLOCKSIZE
;
136 #ifdef CONFIG_MCAST_TFTP
138 #define MTFTP_BITMAPSIZE 0x1000
139 static unsigned *tftp_mcast_bitmap
;
140 static int tftp_mcast_prev_hole
;
141 static int tftp_mcast_bitmap_size
= MTFTP_BITMAPSIZE
;
142 static int tftp_mcast_disabled
;
143 static int tftp_mcast_master_client
;
144 static int tftp_mcast_active
;
145 static int tftp_mcast_port
;
146 /* can get 'last' block before done..*/
147 static ulong tftp_mcast_ending_block
;
149 static void parse_multicast_oack(char *pkt
, int len
);
151 static void mcast_cleanup(void)
154 eth_mcast_join(net_mcast_addr
, 0);
155 if (tftp_mcast_bitmap
)
156 free(tftp_mcast_bitmap
);
157 tftp_mcast_bitmap
= NULL
;
158 net_mcast_addr
.s_addr
= 0;
159 tftp_mcast_active
= 0;
161 tftp_mcast_ending_block
= -1;
164 #endif /* CONFIG_MCAST_TFTP */
166 static inline void store_block(int block
, uchar
*src
, unsigned len
)
168 ulong offset
= block
* tftp_block_size
+ tftp_block_wrap_offset
;
169 ulong newsize
= offset
+ len
;
170 #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
173 for (i
= 0; i
< CONFIG_SYS_MAX_FLASH_BANKS
; i
++) {
174 /* start address in flash? */
175 if (flash_info
[i
].flash_id
== FLASH_UNKNOWN
)
177 if (load_addr
+ offset
>= flash_info
[i
].start
[0]) {
183 if (rc
) { /* Flash is destination for this packet */
184 rc
= flash_write((char *)src
, (ulong
)(load_addr
+offset
), len
);
187 net_set_state(NETLOOP_FAIL
);
191 #endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */
193 void *ptr
= map_sysmem(load_addr
+ offset
, len
);
195 memcpy(ptr
, src
, len
);
198 #ifdef CONFIG_MCAST_TFTP
199 if (tftp_mcast_active
)
200 ext2_set_bit(block
, tftp_mcast_bitmap
);
203 if (net_boot_file_size
< newsize
)
204 net_boot_file_size
= newsize
;
207 /* Clear our state ready for a new transfer */
208 static void new_transfer(void)
212 tftp_block_wrap_offset
= 0;
213 #ifdef CONFIG_CMD_TFTPPUT
214 tftp_put_final_block_sent
= 0;
218 #ifdef CONFIG_CMD_TFTPPUT
220 * Load the next block from memory to be sent over tftp.
222 * @param block Block number to send
223 * @param dst Destination buffer for data
224 * @param len Number of bytes in block (this one and every other)
225 * @return number of bytes loaded
227 static int load_block(unsigned block
, uchar
*dst
, unsigned len
)
229 /* We may want to get the final block from the previous set */
230 ulong offset
= ((int)block
- 1) * len
+ tftp_block_wrap_offset
;
233 tosend
= min(net_boot_file_size
- offset
, tosend
);
234 (void)memcpy(dst
, (void *)(save_addr
+ offset
), tosend
);
235 debug("%s: block=%d, offset=%ld, len=%d, tosend=%ld\n", __func__
,
236 block
, offset
, len
, tosend
);
241 static void tftp_send(void);
242 static void tftp_timeout_handler(void);
244 /**********************************************************************/
246 static void show_block_marker(void)
248 #ifdef CONFIG_TFTP_TSIZE
250 ulong pos
= tftp_cur_block
* tftp_block_size
+
251 tftp_block_wrap_offset
;
253 while (tftp_tsize_num_hash
< pos
* 50 / tftp_tsize
) {
255 tftp_tsize_num_hash
++;
260 if (((tftp_cur_block
- 1) % 10) == 0)
262 else if ((tftp_cur_block
% (10 * HASHES_PER_LINE
)) == 0)
268 * restart the current transfer due to an error
270 * @param msg Message to print for user
272 static void restart(const char *msg
)
274 printf("\n%s; starting again\n", msg
);
275 #ifdef CONFIG_MCAST_TFTP
282 * Check if the block number has wrapped, and update progress
284 * TODO: The egregious use of global variables in this file should be tidied.
286 static void update_block_number(void)
289 * RFC1350 specifies that the first data packet will
290 * have sequence number 1. If we receive a sequence
291 * number of 0 this means that there was a wrap
292 * around of the (16 bit) counter.
294 if (tftp_cur_block
== 0 && tftp_prev_block
!= 0) {
296 tftp_block_wrap_offset
+= tftp_block_size
* TFTP_SEQUENCE_SIZE
;
297 timeout_count
= 0; /* we've done well, reset the timeout */
303 /* The TFTP get or put is complete */
304 static void tftp_complete(void)
306 #ifdef CONFIG_TFTP_TSIZE
307 /* Print hash marks for the last packet received */
308 while (tftp_tsize
&& tftp_tsize_num_hash
< 49) {
310 tftp_tsize_num_hash
++;
313 print_size(tftp_tsize
, "");
315 time_start
= get_timer(time_start
);
316 if (time_start
> 0) {
317 puts("\n\t "); /* Line up with "Loading: " */
318 print_size(net_boot_file_size
/
319 time_start
* 1000, "/s");
322 net_set_state(NETLOOP_SUCCESS
);
325 static void tftp_send(void)
332 #ifdef CONFIG_MCAST_TFTP
333 /* Multicast TFTP.. non-MasterClients do not ACK data. */
334 if (tftp_mcast_active
&& tftp_state
== STATE_DATA
&&
335 tftp_mcast_master_client
== 0)
339 * We will always be sending some sort of packet, so
340 * cobble together the packet headers now.
342 pkt
= net_tx_packet
+ net_eth_hdr_size() + IP_UDP_HDR_SIZE
;
344 switch (tftp_state
) {
349 #ifdef CONFIG_CMD_TFTPPUT
350 *s
++ = htons(tftp_state
== STATE_SEND_RRQ
? TFTP_RRQ
:
353 *s
++ = htons(TFTP_RRQ
);
356 strcpy((char *)pkt
, tftp_filename
);
357 pkt
+= strlen(tftp_filename
) + 1;
358 strcpy((char *)pkt
, "octet");
359 pkt
+= 5 /*strlen("octet")*/ + 1;
360 strcpy((char *)pkt
, "timeout");
361 pkt
+= 7 /*strlen("timeout")*/ + 1;
362 sprintf((char *)pkt
, "%lu", timeout_ms
/ 1000);
363 debug("send option \"timeout %s\"\n", (char *)pkt
);
364 pkt
+= strlen((char *)pkt
) + 1;
365 #ifdef CONFIG_TFTP_TSIZE
366 pkt
+= sprintf((char *)pkt
, "tsize%c%u%c",
367 0, net_boot_file_size
, 0);
369 /* try for more effic. blk size */
370 pkt
+= sprintf((char *)pkt
, "blksize%c%d%c",
371 0, tftp_block_size_option
, 0);
372 #ifdef CONFIG_MCAST_TFTP
373 /* Check all preconditions before even trying the option */
374 if (!tftp_mcast_disabled
) {
375 tftp_mcast_bitmap
= malloc(tftp_mcast_bitmap_size
);
376 if (tftp_mcast_bitmap
&& eth_get_dev()->mcast
) {
377 free(tftp_mcast_bitmap
);
378 tftp_mcast_bitmap
= NULL
;
379 pkt
+= sprintf((char *)pkt
, "multicast%c%c",
383 #endif /* CONFIG_MCAST_TFTP */
388 #ifdef CONFIG_MCAST_TFTP
389 /* My turn! Start at where I need blocks I missed. */
390 if (tftp_mcast_active
)
391 tftp_cur_block
= ext2_find_next_zero_bit(
393 tftp_mcast_bitmap_size
* 8, 0);
401 s
[0] = htons(TFTP_ACK
);
402 s
[1] = htons(tftp_cur_block
);
403 pkt
= (uchar
*)(s
+ 2);
404 #ifdef CONFIG_CMD_TFTPPUT
405 if (tftp_put_active
) {
406 int toload
= tftp_block_size
;
407 int loaded
= load_block(tftp_cur_block
, pkt
, toload
);
409 s
[0] = htons(TFTP_DATA
);
411 tftp_put_final_block_sent
= (loaded
< toload
);
417 case STATE_TOO_LARGE
:
420 *s
++ = htons(TFTP_ERROR
);
424 strcpy((char *)pkt
, "File too large");
425 pkt
+= 14 /*strlen("File too large")*/ + 1;
429 case STATE_BAD_MAGIC
:
432 *s
++ = htons(TFTP_ERROR
);
435 strcpy((char *)pkt
, "File has bad magic");
436 pkt
+= 18 /*strlen("File has bad magic")*/ + 1;
441 net_send_udp_packet(net_server_ethaddr
, tftp_remote_ip
,
442 tftp_remote_port
, tftp_our_port
, len
);
445 #ifdef CONFIG_CMD_TFTPPUT
446 static void icmp_handler(unsigned type
, unsigned code
, unsigned dest
,
447 struct in_addr sip
, unsigned src
, uchar
*pkt
,
450 if (type
== ICMP_NOT_REACH
&& code
== ICMP_NOT_REACH_PORT
) {
451 /* Oh dear the other end has gone away */
452 restart("TFTP server died");
457 static void tftp_handler(uchar
*pkt
, unsigned dest
, struct in_addr sip
,
458 unsigned src
, unsigned len
)
464 if (dest
!= tftp_our_port
) {
465 #ifdef CONFIG_MCAST_TFTP
466 if (tftp_mcast_active
&&
467 (!tftp_mcast_port
|| dest
!= tftp_mcast_port
))
471 if (tftp_state
!= STATE_SEND_RRQ
&& src
!= tftp_remote_port
&&
472 tftp_state
!= STATE_RECV_WRQ
&& tftp_state
!= STATE_SEND_WRQ
)
478 /* warning: don't use increment (++) in ntohs() macros!! */
482 switch (ntohs(proto
)) {
487 #ifdef CONFIG_CMD_TFTPPUT
488 if (tftp_put_active
) {
489 if (tftp_put_final_block_sent
) {
493 * Move to the next block. We want our block
494 * count to wrap just like the other end!
496 int block
= ntohs(*s
);
497 int ack_ok
= (tftp_cur_block
== block
);
499 tftp_cur_block
= (unsigned short)(block
+ 1);
500 update_block_number();
502 tftp_send(); /* Send next data block */
511 #ifdef CONFIG_CMD_TFTPSRV
514 tftp_remote_ip
= sip
;
515 tftp_remote_port
= src
;
516 tftp_our_port
= 1024 + (get_timer(0) % 3072);
518 tftp_send(); /* Send ACK(0) */
523 debug("Got OACK: %s %s\n",
524 pkt
, pkt
+ strlen((char *)pkt
) + 1);
525 tftp_state
= STATE_OACK
;
526 tftp_remote_port
= src
;
528 * Check for 'blksize' option.
529 * Careful: "i" is signed, "len" is unsigned, thus
530 * something like "len-8" may give a *huge* number
532 for (i
= 0; i
+8 < len
; i
++) {
533 if (strcmp((char *)pkt
+ i
, "blksize") == 0) {
534 tftp_block_size
= (unsigned short)
535 simple_strtoul((char *)pkt
+ i
+ 8,
537 debug("Blocksize ack: %s, %d\n",
538 (char *)pkt
+ i
+ 8, tftp_block_size
);
540 #ifdef CONFIG_TFTP_TSIZE
541 if (strcmp((char *)pkt
+i
, "tsize") == 0) {
542 tftp_tsize
= simple_strtoul((char *)pkt
+ i
+ 6,
544 debug("size = %s, %d\n",
545 (char *)pkt
+ i
+ 6, tftp_tsize
);
549 #ifdef CONFIG_MCAST_TFTP
550 parse_multicast_oack((char *)pkt
, len
- 1);
551 if ((tftp_mcast_active
) && (!tftp_mcast_master_client
))
552 tftp_state
= STATE_DATA
; /* passive.. */
555 #ifdef CONFIG_CMD_TFTPPUT
556 if (tftp_put_active
) {
557 /* Get ready to send the first block */
558 tftp_state
= STATE_DATA
;
562 tftp_send(); /* Send ACK or first data block */
568 tftp_cur_block
= ntohs(*(__be16
*)pkt
);
570 update_block_number();
572 if (tftp_state
== STATE_SEND_RRQ
)
573 debug("Server did not acknowledge timeout option!\n");
575 if (tftp_state
== STATE_SEND_RRQ
|| tftp_state
== STATE_OACK
||
576 tftp_state
== STATE_RECV_WRQ
) {
577 /* first block received */
578 tftp_state
= STATE_DATA
;
579 tftp_remote_port
= src
;
582 #ifdef CONFIG_MCAST_TFTP
583 if (tftp_mcast_active
) { /* start!=1 common if mcast */
584 tftp_prev_block
= tftp_cur_block
- 1;
587 if (tftp_cur_block
!= 1) { /* Assertion */
588 puts("\nTFTP error: ");
589 printf("First block is not block 1 (%ld)\n",
591 puts("Starting again\n\n");
597 if (tftp_cur_block
== tftp_prev_block
) {
598 /* Same block again; ignore it. */
602 tftp_prev_block
= tftp_cur_block
;
603 timeout_count_max
= TIMEOUT_COUNT
;
604 net_set_timeout_handler(timeout_ms
, tftp_timeout_handler
);
606 store_block(tftp_cur_block
- 1, pkt
+ 2, len
);
609 * Acknowledge the block just received, which will prompt
610 * the remote for the next one.
612 #ifdef CONFIG_MCAST_TFTP
613 /* if I am the MasterClient, actively calculate what my next
614 * needed block is; else I'm passive; not ACKING
616 if (tftp_mcast_active
) {
617 if (len
< tftp_block_size
) {
618 tftp_mcast_ending_block
= tftp_cur_block
;
619 } else if (tftp_mcast_master_client
) {
620 tftp_mcast_prev_hole
= ext2_find_next_zero_bit(
622 tftp_mcast_bitmap_size
* 8,
623 tftp_mcast_prev_hole
);
624 tftp_cur_block
= tftp_mcast_prev_hole
;
626 ((tftp_mcast_bitmap_size
* 8) - 1)) {
627 debug("tftpfile too big\n");
628 /* try to double it and retry */
629 tftp_mcast_bitmap_size
<<= 1;
634 tftp_prev_block
= tftp_cur_block
;
640 #ifdef CONFIG_MCAST_TFTP
641 if (tftp_mcast_active
) {
642 if (tftp_mcast_master_client
&&
643 (tftp_cur_block
>= tftp_mcast_ending_block
)) {
644 puts("\nMulticast tftp done\n");
646 net_set_state(NETLOOP_SUCCESS
);
650 if (len
< tftp_block_size
)
655 printf("\nTFTP error: '%s' (%d)\n",
656 pkt
+ 2, ntohs(*(__be16
*)pkt
));
658 switch (ntohs(*(__be16
*)pkt
)) {
659 case TFTP_ERR_FILE_NOT_FOUND
:
660 case TFTP_ERR_ACCESS_DENIED
:
661 puts("Not retrying...\n");
663 net_set_state(NETLOOP_FAIL
);
665 case TFTP_ERR_UNDEFINED
:
666 case TFTP_ERR_DISK_FULL
:
667 case TFTP_ERR_UNEXPECTED_OPCODE
:
668 case TFTP_ERR_UNKNOWN_TRANSFER_ID
:
669 case TFTP_ERR_FILE_ALREADY_EXISTS
:
671 puts("Starting again\n\n");
672 #ifdef CONFIG_MCAST_TFTP
683 static void tftp_timeout_handler(void)
685 if (++timeout_count
> timeout_count_max
) {
686 restart("Retry count exceeded");
689 net_set_timeout_handler(timeout_ms
, tftp_timeout_handler
);
690 if (tftp_state
!= STATE_RECV_WRQ
)
696 void tftp_start(enum proto_t protocol
)
698 char *ep
; /* Environment pointer */
701 * Allow the user to choose TFTP blocksize and timeout.
702 * TFTP protocol has a minimal timeout of 1 second.
704 ep
= getenv("tftpblocksize");
706 tftp_block_size_option
= simple_strtol(ep
, NULL
, 10);
708 ep
= getenv("tftptimeout");
710 timeout_ms
= simple_strtol(ep
, NULL
, 10);
712 if (timeout_ms
< 1000) {
713 printf("TFTP timeout (%ld ms) too low, set min = 1000 ms\n",
718 debug("TFTP blocksize = %i, timeout = %ld ms\n",
719 tftp_block_size_option
, timeout_ms
);
721 tftp_remote_ip
= net_server_ip
;
722 if (net_boot_file_name
[0] == '\0') {
723 sprintf(default_filename
, "%02X%02X%02X%02X.img",
724 net_ip
.s_addr
& 0xFF,
725 (net_ip
.s_addr
>> 8) & 0xFF,
726 (net_ip
.s_addr
>> 16) & 0xFF,
727 (net_ip
.s_addr
>> 24) & 0xFF);
729 strncpy(tftp_filename
, default_filename
, MAX_LEN
);
730 tftp_filename
[MAX_LEN
- 1] = 0;
732 printf("*** Warning: no boot file name; using '%s'\n",
735 char *p
= strchr(net_boot_file_name
, ':');
738 strncpy(tftp_filename
, net_boot_file_name
, MAX_LEN
);
739 tftp_filename
[MAX_LEN
- 1] = 0;
741 tftp_remote_ip
= string_to_ip(net_boot_file_name
);
742 strncpy(tftp_filename
, p
+ 1, MAX_LEN
);
743 tftp_filename
[MAX_LEN
- 1] = 0;
747 printf("Using %s device\n", eth_get_name());
748 printf("TFTP %s server %pI4; our IP address is %pI4",
749 #ifdef CONFIG_CMD_TFTPPUT
750 protocol
== TFTPPUT
? "to" : "from",
754 &tftp_remote_ip
, &net_ip
);
756 /* Check if we need to send across this subnet */
757 if (net_gateway
.s_addr
&& net_netmask
.s_addr
) {
758 struct in_addr our_net
;
759 struct in_addr remote_net
;
761 our_net
.s_addr
= net_ip
.s_addr
& net_netmask
.s_addr
;
762 remote_net
.s_addr
= tftp_remote_ip
.s_addr
& net_netmask
.s_addr
;
763 if (our_net
.s_addr
!= remote_net
.s_addr
)
764 printf("; sending through gateway %pI4", &net_gateway
);
768 printf("Filename '%s'.", tftp_filename
);
770 if (net_boot_file_expected_size_in_blocks
) {
771 printf(" Size is 0x%x Bytes = ",
772 net_boot_file_expected_size_in_blocks
<< 9);
773 print_size(net_boot_file_expected_size_in_blocks
<< 9, "");
777 #ifdef CONFIG_CMD_TFTPPUT
778 tftp_put_active
= (protocol
== TFTPPUT
);
779 if (tftp_put_active
) {
780 printf("Save address: 0x%lx\n", save_addr
);
781 printf("Save size: 0x%lx\n", save_size
);
782 net_boot_file_size
= save_size
;
784 tftp_state
= STATE_SEND_WRQ
;
789 printf("Load address: 0x%lx\n", load_addr
);
790 puts("Loading: *\b");
791 tftp_state
= STATE_SEND_RRQ
;
794 time_start
= get_timer(0);
795 timeout_count_max
= tftp_timeout_count_max
;
797 net_set_timeout_handler(timeout_ms
, tftp_timeout_handler
);
798 net_set_udp_handler(tftp_handler
);
799 #ifdef CONFIG_CMD_TFTPPUT
800 net_set_icmp_handler(icmp_handler
);
802 tftp_remote_port
= WELL_KNOWN_PORT
;
804 /* Use a pseudo-random port unless a specific port is set */
805 tftp_our_port
= 1024 + (get_timer(0) % 3072);
807 #ifdef CONFIG_TFTP_PORT
808 ep
= getenv("tftpdstp");
810 tftp_remote_port
= simple_strtol(ep
, NULL
, 10);
811 ep
= getenv("tftpsrcp");
813 tftp_our_port
= simple_strtol(ep
, NULL
, 10);
817 /* zero out server ether in case the server ip has changed */
818 memset(net_server_ethaddr
, 0, 6);
819 /* Revert tftp_block_size to dflt */
820 tftp_block_size
= TFTP_BLOCK_SIZE
;
821 #ifdef CONFIG_MCAST_TFTP
824 #ifdef CONFIG_TFTP_TSIZE
826 tftp_tsize_num_hash
= 0;
832 #ifdef CONFIG_CMD_TFTPSRV
833 void tftp_start_server(void)
835 tftp_filename
[0] = 0;
837 printf("Using %s device\n", eth_get_name());
838 printf("Listening for TFTP transfer on %pI4\n", &net_ip
);
839 printf("Load address: 0x%lx\n", load_addr
);
841 puts("Loading: *\b");
843 timeout_count_max
= TIMEOUT_COUNT
;
845 timeout_ms
= TIMEOUT
;
846 net_set_timeout_handler(timeout_ms
, tftp_timeout_handler
);
848 /* Revert tftp_block_size to dflt */
849 tftp_block_size
= TFTP_BLOCK_SIZE
;
851 tftp_our_port
= WELL_KNOWN_PORT
;
853 #ifdef CONFIG_TFTP_TSIZE
855 tftp_tsize_num_hash
= 0;
858 tftp_state
= STATE_RECV_WRQ
;
859 net_set_udp_handler(tftp_handler
);
861 /* zero out server ether in case the server ip has changed */
862 memset(net_server_ethaddr
, 0, 6);
864 #endif /* CONFIG_CMD_TFTPSRV */
866 #ifdef CONFIG_MCAST_TFTP
868 * Credits: atftp project.
872 * Pick up BcastAddr, Port, and whether I am [now] the master-client.
874 * +-------+-----------+---+-------~~-------+---+
875 * | opc | multicast | 0 | addr, port, mc | 0 |
876 * +-------+-----------+---+-------~~-------+---+
877 * The multicast addr/port becomes what I listen to, and if 'mc' is '1' then
878 * I am the new master-client so must send ACKs to DataBlocks. If I am not
879 * master-client, I'm a passive client, gathering what DataBlocks I may and
880 * making note of which ones I got in my bitmask.
881 * In theory, I never go from master->passive..
882 * .. this comes in with pkt already pointing just past opc
884 static void parse_multicast_oack(char *pkt
, int len
)
895 /* march along looking for 'multicast\0', which has to start at least
896 * 14 bytes back from the end.
898 for (i
= 0; i
< len
- 14; i
++)
899 if (strcmp(pkt
+ i
, "multicast") == 0)
901 if (i
>= (len
- 14)) /* non-Multicast OACK, ign. */
904 i
+= 10; /* strlen multicast */
906 for (; i
< len
; i
++) {
907 if (*(pkt
+ i
) == ',') {
917 if (!port
|| !mc_adr
|| !mc
)
919 if (tftp_mcast_active
&& tftp_mcast_master_client
) {
920 printf("I got a OACK as master Client, WRONG!\n");
923 /* ..I now accept packets destined for this MCAST addr, port */
924 if (!tftp_mcast_active
) {
925 if (tftp_mcast_bitmap
) {
926 printf("Internal failure! no mcast.\n");
927 free(tftp_mcast_bitmap
);
928 tftp_mcast_bitmap
= NULL
;
929 tftp_mcast_disabled
= 1;
932 /* I malloc instead of pre-declare; so that if the file ends
933 * up being too big for this bitmap I can retry
935 tftp_mcast_bitmap
= malloc(tftp_mcast_bitmap_size
);
936 if (!tftp_mcast_bitmap
) {
937 printf("No bitmap, no multicast. Sorry.\n");
938 tftp_mcast_disabled
= 1;
941 memset(tftp_mcast_bitmap
, 0, tftp_mcast_bitmap_size
);
942 tftp_mcast_prev_hole
= 0;
943 tftp_mcast_active
= 1;
945 addr
= string_to_ip(mc_adr
);
946 if (net_mcast_addr
.s_addr
!= addr
.s_addr
) {
947 if (net_mcast_addr
.s_addr
)
948 eth_mcast_join(net_mcast_addr
, 0);
949 net_mcast_addr
= addr
;
950 if (eth_mcast_join(net_mcast_addr
, 1)) {
951 printf("Fail to set mcast, revert to TFTP\n");
952 tftp_mcast_disabled
= 1;
957 tftp_mcast_master_client
= simple_strtoul((char *)mc
, NULL
, 10);
958 tftp_mcast_port
= (unsigned short)simple_strtoul(port
, NULL
, 10);
959 printf("Multicast: %s:%d [%d]\n", mc_adr
, tftp_mcast_port
,
960 tftp_mcast_master_client
);
964 #endif /* Multicast TFTP */