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Commit | Line | Data |
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fe8c2806 WD |
1 | /* |
2 | * Copyright 1994, 1995, 2000 Neil Russell. | |
3 | * (See License) | |
4 | * Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de | |
5 | */ | |
6 | ||
7 | #include <common.h> | |
8 | #include <command.h> | |
9 | #include <net.h> | |
10 | #include "tftp.h" | |
11 | #include "bootp.h" | |
12 | ||
643d1ab2 | 13 | #if defined(CONFIG_CMD_NET) |
fe8c2806 WD |
14 | |
15 | #define WELL_KNOWN_PORT 69 /* Well known TFTP port # */ | |
49f3bdbb | 16 | #define TIMEOUT 5000UL /* Millisecs to timeout for lost pkt */ |
fe8c2806 WD |
17 | #ifndef CONFIG_NET_RETRY_COUNT |
18 | # define TIMEOUT_COUNT 10 /* # of timeouts before giving up */ | |
19 | #else | |
20 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2) | |
21 | #endif | |
22 | /* (for checking the image size) */ | |
23 | #define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */ | |
24 | ||
25 | /* | |
26 | * TFTP operations. | |
27 | */ | |
28 | #define TFTP_RRQ 1 | |
29 | #define TFTP_WRQ 2 | |
30 | #define TFTP_DATA 3 | |
31 | #define TFTP_ACK 4 | |
32 | #define TFTP_ERROR 5 | |
fbe4b5cb | 33 | #define TFTP_OACK 6 |
fe8c2806 | 34 | |
e83cc063 BS |
35 | static ulong TftpTimeoutMSecs = TIMEOUT; |
36 | static int TftpTimeoutCountMax = TIMEOUT_COUNT; | |
37 | ||
38 | /* | |
39 | * These globals govern the timeout behavior when attempting a connection to a | |
40 | * TFTP server. TftpRRQTimeoutMSecs specifies the number of milliseconds to | |
41 | * wait for the server to respond to initial connection. Second global, | |
42 | * TftpRRQTimeoutCountMax, gives the number of such connection retries. | |
43 | * TftpRRQTimeoutCountMax must be non-negative and TftpRRQTimeoutMSecs must be | |
44 | * positive. The globals are meant to be set (and restored) by code needing | |
45 | * non-standard timeout behavior when initiating a TFTP transfer. | |
46 | */ | |
47 | ulong TftpRRQTimeoutMSecs = TIMEOUT; | |
48 | int TftpRRQTimeoutCountMax = TIMEOUT_COUNT; | |
49 | ||
a93907c4 | 50 | static IPaddr_t TftpServerIP; |
fe8c2806 WD |
51 | static int TftpServerPort; /* The UDP port at their end */ |
52 | static int TftpOurPort; /* The UDP port at our end */ | |
53 | static int TftpTimeoutCount; | |
3f85ce27 WD |
54 | static ulong TftpBlock; /* packet sequence number */ |
55 | static ulong TftpLastBlock; /* last packet sequence number received */ | |
56 | static ulong TftpBlockWrap; /* count of sequence number wraparounds */ | |
57 | static ulong TftpBlockWrapOffset; /* memory offset due to wrapping */ | |
fe8c2806 | 58 | static int TftpState; |
3f85ce27 | 59 | |
fe8c2806 WD |
60 | #define STATE_RRQ 1 |
61 | #define STATE_DATA 2 | |
62 | #define STATE_TOO_LARGE 3 | |
63 | #define STATE_BAD_MAGIC 4 | |
fbe4b5cb | 64 | #define STATE_OACK 5 |
fe8c2806 | 65 | |
3f85ce27 WD |
66 | #define TFTP_BLOCK_SIZE 512 /* default TFTP block size */ |
67 | #define TFTP_SEQUENCE_SIZE ((ulong)(1<<16)) /* sequence number is 16 bit */ | |
68 | ||
fe8c2806 WD |
69 | #define DEFAULT_NAME_LEN (8 + 4 + 1) |
70 | static char default_filename[DEFAULT_NAME_LEN]; | |
a93907c4 JCPV |
71 | |
72 | #ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN | |
73 | #define MAX_LEN 128 | |
74 | #else | |
75 | #define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN | |
76 | #endif | |
77 | ||
78 | static char tftp_filename[MAX_LEN]; | |
fe8c2806 | 79 | |
6d0f6bcf | 80 | #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
e6f2e902 | 81 | extern flash_info_t flash_info[]; |
fe8c2806 WD |
82 | #endif |
83 | ||
85eb5caf WD |
84 | /* 512 is poor choice for ethernet, MTU is typically 1500. |
85 | * Minus eth.hdrs thats 1468. Can get 2x better throughput with | |
53a5c424 DU |
86 | * almost-MTU block sizes. At least try... fall back to 512 if need be. |
87 | */ | |
88 | #define TFTP_MTU_BLOCKSIZE 1468 | |
89 | static unsigned short TftpBlkSize=TFTP_BLOCK_SIZE; | |
90 | static unsigned short TftpBlkSizeOption=TFTP_MTU_BLOCKSIZE; | |
91 | ||
92 | #ifdef CONFIG_MCAST_TFTP | |
93 | #include <malloc.h> | |
94 | #define MTFTP_BITMAPSIZE 0x1000 | |
95 | static unsigned *Bitmap; | |
96 | static int PrevBitmapHole,Mapsize=MTFTP_BITMAPSIZE; | |
97 | static uchar ProhibitMcast=0, MasterClient=0; | |
98 | static uchar Multicast=0; | |
99 | extern IPaddr_t Mcast_addr; | |
100 | static int Mcast_port; | |
101 | static ulong TftpEndingBlock; /* can get 'last' block before done..*/ | |
102 | ||
103 | static void parse_multicast_oack(char *pkt,int len); | |
104 | ||
105 | static void | |
106 | mcast_cleanup(void) | |
107 | { | |
108 | if (Mcast_addr) eth_mcast_join(Mcast_addr, 0); | |
109 | if (Bitmap) free(Bitmap); | |
110 | Bitmap=NULL; | |
111 | Mcast_addr = Multicast = Mcast_port = 0; | |
112 | TftpEndingBlock = -1; | |
113 | } | |
114 | ||
115 | #endif /* CONFIG_MCAST_TFTP */ | |
116 | ||
fe8c2806 WD |
117 | static __inline__ void |
118 | store_block (unsigned block, uchar * src, unsigned len) | |
119 | { | |
53a5c424 | 120 | ulong offset = block * TftpBlkSize + TftpBlockWrapOffset; |
3f85ce27 | 121 | ulong newsize = offset + len; |
6d0f6bcf | 122 | #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
fe8c2806 WD |
123 | int i, rc = 0; |
124 | ||
6d0f6bcf | 125 | for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; i++) { |
fe8c2806 | 126 | /* start address in flash? */ |
be1b0d27 JF |
127 | if (flash_info[i].flash_id == FLASH_UNKNOWN) |
128 | continue; | |
fe8c2806 WD |
129 | if (load_addr + offset >= flash_info[i].start[0]) { |
130 | rc = 1; | |
131 | break; | |
132 | } | |
133 | } | |
134 | ||
135 | if (rc) { /* Flash is destination for this packet */ | |
77ddac94 | 136 | rc = flash_write ((char *)src, (ulong)(load_addr+offset), len); |
fe8c2806 WD |
137 | if (rc) { |
138 | flash_perror (rc); | |
139 | NetState = NETLOOP_FAIL; | |
140 | return; | |
141 | } | |
142 | } | |
143 | else | |
6d0f6bcf | 144 | #endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */ |
fe8c2806 WD |
145 | { |
146 | (void)memcpy((void *)(load_addr + offset), src, len); | |
147 | } | |
53a5c424 DU |
148 | #ifdef CONFIG_MCAST_TFTP |
149 | if (Multicast) | |
150 | ext2_set_bit(block, Bitmap); | |
151 | #endif | |
fe8c2806 WD |
152 | |
153 | if (NetBootFileXferSize < newsize) | |
154 | NetBootFileXferSize = newsize; | |
155 | } | |
156 | ||
157 | static void TftpSend (void); | |
158 | static void TftpTimeout (void); | |
159 | ||
160 | /**********************************************************************/ | |
161 | ||
162 | static void | |
163 | TftpSend (void) | |
164 | { | |
165 | volatile uchar * pkt; | |
166 | volatile uchar * xp; | |
167 | int len = 0; | |
7bc5ee07 | 168 | volatile ushort *s; |
fe8c2806 | 169 | |
85eb5caf | 170 | #ifdef CONFIG_MCAST_TFTP |
53a5c424 | 171 | /* Multicast TFTP.. non-MasterClients do not ACK data. */ |
85eb5caf WD |
172 | if (Multicast |
173 | && (TftpState == STATE_DATA) | |
174 | && (MasterClient == 0)) | |
53a5c424 DU |
175 | return; |
176 | #endif | |
fe8c2806 WD |
177 | /* |
178 | * We will always be sending some sort of packet, so | |
179 | * cobble together the packet headers now. | |
180 | */ | |
a3d991bd | 181 | pkt = NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE; |
fe8c2806 WD |
182 | |
183 | switch (TftpState) { | |
184 | ||
185 | case STATE_RRQ: | |
186 | xp = pkt; | |
7bc5ee07 WD |
187 | s = (ushort *)pkt; |
188 | *s++ = htons(TFTP_RRQ); | |
189 | pkt = (uchar *)s; | |
fe8c2806 WD |
190 | strcpy ((char *)pkt, tftp_filename); |
191 | pkt += strlen(tftp_filename) + 1; | |
192 | strcpy ((char *)pkt, "octet"); | |
193 | pkt += 5 /*strlen("octet")*/ + 1; | |
fbe4b5cb WD |
194 | strcpy ((char *)pkt, "timeout"); |
195 | pkt += 7 /*strlen("timeout")*/ + 1; | |
49f3bdbb | 196 | sprintf((char *)pkt, "%lu", TIMEOUT / 1000); |
0ebf04c6 | 197 | debug("send option \"timeout %s\"\n", (char *)pkt); |
fbe4b5cb | 198 | pkt += strlen((char *)pkt) + 1; |
53a5c424 DU |
199 | /* try for more effic. blk size */ |
200 | pkt += sprintf((char *)pkt,"blksize%c%d%c", | |
ef8f2075 | 201 | 0,TftpBlkSizeOption,0); |
85eb5caf | 202 | #ifdef CONFIG_MCAST_TFTP |
53a5c424 | 203 | /* Check all preconditions before even trying the option */ |
85eb5caf WD |
204 | if (!ProhibitMcast |
205 | && (Bitmap=malloc(Mapsize)) | |
53a5c424 DU |
206 | && eth_get_dev()->mcast) { |
207 | free(Bitmap); | |
208 | Bitmap=NULL; | |
209 | pkt += sprintf((char *)pkt,"multicast%c%c",0,0); | |
210 | } | |
211 | #endif /* CONFIG_MCAST_TFTP */ | |
fe8c2806 WD |
212 | len = pkt - xp; |
213 | break; | |
214 | ||
fbe4b5cb | 215 | case STATE_OACK: |
53a5c424 DU |
216 | #ifdef CONFIG_MCAST_TFTP |
217 | /* My turn! Start at where I need blocks I missed.*/ | |
218 | if (Multicast) | |
219 | TftpBlock=ext2_find_next_zero_bit(Bitmap,(Mapsize*8),0); | |
220 | /*..falling..*/ | |
221 | #endif | |
222 | case STATE_DATA: | |
fe8c2806 | 223 | xp = pkt; |
7bc5ee07 WD |
224 | s = (ushort *)pkt; |
225 | *s++ = htons(TFTP_ACK); | |
226 | *s++ = htons(TftpBlock); | |
227 | pkt = (uchar *)s; | |
fe8c2806 WD |
228 | len = pkt - xp; |
229 | break; | |
230 | ||
231 | case STATE_TOO_LARGE: | |
232 | xp = pkt; | |
7bc5ee07 WD |
233 | s = (ushort *)pkt; |
234 | *s++ = htons(TFTP_ERROR); | |
235 | *s++ = htons(3); | |
236 | pkt = (uchar *)s; | |
fe8c2806 WD |
237 | strcpy ((char *)pkt, "File too large"); |
238 | pkt += 14 /*strlen("File too large")*/ + 1; | |
239 | len = pkt - xp; | |
240 | break; | |
241 | ||
242 | case STATE_BAD_MAGIC: | |
243 | xp = pkt; | |
7bc5ee07 WD |
244 | s = (ushort *)pkt; |
245 | *s++ = htons(TFTP_ERROR); | |
246 | *s++ = htons(2); | |
247 | pkt = (uchar *)s; | |
fe8c2806 WD |
248 | strcpy ((char *)pkt, "File has bad magic"); |
249 | pkt += 18 /*strlen("File has bad magic")*/ + 1; | |
250 | len = pkt - xp; | |
251 | break; | |
252 | } | |
253 | ||
a93907c4 | 254 | NetSendUDPPacket(NetServerEther, TftpServerIP, TftpServerPort, TftpOurPort, len); |
fe8c2806 WD |
255 | } |
256 | ||
257 | ||
258 | static void | |
259 | TftpHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
260 | { | |
261 | ushort proto; | |
7bc5ee07 | 262 | ushort *s; |
ff13ac8c | 263 | int i; |
fe8c2806 WD |
264 | |
265 | if (dest != TftpOurPort) { | |
53a5c424 | 266 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 267 | if (Multicast |
53a5c424 DU |
268 | && (!Mcast_port || (dest != Mcast_port))) |
269 | #endif | |
fe8c2806 WD |
270 | return; |
271 | } | |
272 | if (TftpState != STATE_RRQ && src != TftpServerPort) { | |
273 | return; | |
274 | } | |
275 | ||
276 | if (len < 2) { | |
277 | return; | |
278 | } | |
279 | len -= 2; | |
280 | /* warning: don't use increment (++) in ntohs() macros!! */ | |
7bc5ee07 WD |
281 | s = (ushort *)pkt; |
282 | proto = *s++; | |
283 | pkt = (uchar *)s; | |
fe8c2806 WD |
284 | switch (ntohs(proto)) { |
285 | ||
286 | case TFTP_RRQ: | |
287 | case TFTP_WRQ: | |
288 | case TFTP_ACK: | |
289 | break; | |
290 | default: | |
291 | break; | |
292 | ||
fbe4b5cb | 293 | case TFTP_OACK: |
d371708a WD |
294 | debug("Got OACK: %s %s\n", |
295 | pkt, | |
296 | pkt + strlen((char *)pkt) + 1); | |
fbe4b5cb WD |
297 | TftpState = STATE_OACK; |
298 | TftpServerPort = src; | |
60174746 WD |
299 | /* |
300 | * Check for 'blksize' option. | |
301 | * Careful: "i" is signed, "len" is unsigned, thus | |
302 | * something like "len-8" may give a *huge* number | |
303 | */ | |
304 | for (i=0; i+8<len; i++) { | |
ff13ac8c WD |
305 | if (strcmp ((char*)pkt+i,"blksize") == 0) { |
306 | TftpBlkSize = (unsigned short) | |
307 | simple_strtoul((char*)pkt+i+8,NULL,10); | |
0ebf04c6 | 308 | debug("Blocksize ack: %s, %d\n", |
ff13ac8c | 309 | (char*)pkt+i+8,TftpBlkSize); |
ff13ac8c WD |
310 | break; |
311 | } | |
53a5c424 DU |
312 | } |
313 | #ifdef CONFIG_MCAST_TFTP | |
314 | parse_multicast_oack((char *)pkt,len-1); | |
85eb5caf | 315 | if ((Multicast) && (!MasterClient)) |
53a5c424 DU |
316 | TftpState = STATE_DATA; /* passive.. */ |
317 | else | |
318 | #endif | |
fbe4b5cb WD |
319 | TftpSend (); /* Send ACK */ |
320 | break; | |
fe8c2806 WD |
321 | case TFTP_DATA: |
322 | if (len < 2) | |
323 | return; | |
324 | len -= 2; | |
325 | TftpBlock = ntohs(*(ushort *)pkt); | |
3f85ce27 WD |
326 | |
327 | /* | |
cd0a9de6 WD |
328 | * RFC1350 specifies that the first data packet will |
329 | * have sequence number 1. If we receive a sequence | |
330 | * number of 0 this means that there was a wrap | |
331 | * around of the (16 bit) counter. | |
3f85ce27 WD |
332 | */ |
333 | if (TftpBlock == 0) { | |
334 | TftpBlockWrap++; | |
53a5c424 | 335 | TftpBlockWrapOffset += TftpBlkSize * TFTP_SEQUENCE_SIZE; |
ddd5d9da | 336 | printf ("\n\t %lu MB received\n\t ", TftpBlockWrapOffset>>20); |
3f85ce27 WD |
337 | } else { |
338 | if (((TftpBlock - 1) % 10) == 0) { | |
339 | putc ('#'); | |
340 | } else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) { | |
341 | puts ("\n\t "); | |
342 | } | |
fe8c2806 WD |
343 | } |
344 | ||
0ebf04c6 RG |
345 | if (TftpState == STATE_RRQ) |
346 | debug("Server did not acknowledge timeout option!\n"); | |
fbe4b5cb WD |
347 | |
348 | if (TftpState == STATE_RRQ || TftpState == STATE_OACK) { | |
3f85ce27 | 349 | /* first block received */ |
fe8c2806 WD |
350 | TftpState = STATE_DATA; |
351 | TftpServerPort = src; | |
352 | TftpLastBlock = 0; | |
3f85ce27 WD |
353 | TftpBlockWrap = 0; |
354 | TftpBlockWrapOffset = 0; | |
fe8c2806 | 355 | |
53a5c424 DU |
356 | #ifdef CONFIG_MCAST_TFTP |
357 | if (Multicast) { /* start!=1 common if mcast */ | |
358 | TftpLastBlock = TftpBlock - 1; | |
359 | } else | |
360 | #endif | |
fe8c2806 WD |
361 | if (TftpBlock != 1) { /* Assertion */ |
362 | printf ("\nTFTP error: " | |
3f85ce27 | 363 | "First block is not block 1 (%ld)\n" |
fe8c2806 WD |
364 | "Starting again\n\n", |
365 | TftpBlock); | |
366 | NetStartAgain (); | |
367 | break; | |
368 | } | |
369 | } | |
370 | ||
371 | if (TftpBlock == TftpLastBlock) { | |
372 | /* | |
373 | * Same block again; ignore it. | |
374 | */ | |
375 | break; | |
376 | } | |
377 | ||
378 | TftpLastBlock = TftpBlock; | |
e83cc063 BS |
379 | TftpTimeoutMSecs = TIMEOUT; |
380 | TftpTimeoutCountMax = TIMEOUT_COUNT; | |
381 | NetSetTimeout (TftpTimeoutMSecs, TftpTimeout); | |
fe8c2806 WD |
382 | |
383 | store_block (TftpBlock - 1, pkt + 2, len); | |
384 | ||
385 | /* | |
386 | * Acknoledge the block just received, which will prompt | |
387 | * the server for the next one. | |
388 | */ | |
53a5c424 | 389 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf WD |
390 | /* if I am the MasterClient, actively calculate what my next |
391 | * needed block is; else I'm passive; not ACKING | |
a93907c4 | 392 | */ |
53a5c424 DU |
393 | if (Multicast) { |
394 | if (len < TftpBlkSize) { | |
395 | TftpEndingBlock = TftpBlock; | |
396 | } else if (MasterClient) { | |
85eb5caf | 397 | TftpBlock = PrevBitmapHole = |
53a5c424 DU |
398 | ext2_find_next_zero_bit( |
399 | Bitmap, | |
400 | (Mapsize*8), | |
401 | PrevBitmapHole); | |
402 | if (TftpBlock > ((Mapsize*8) - 1)) { | |
403 | printf ("tftpfile too big\n"); | |
404 | /* try to double it and retry */ | |
405 | Mapsize<<=1; | |
406 | mcast_cleanup(); | |
407 | NetStartAgain (); | |
408 | return; | |
409 | } | |
410 | TftpLastBlock = TftpBlock; | |
411 | } | |
412 | } | |
413 | #endif | |
fe8c2806 WD |
414 | TftpSend (); |
415 | ||
53a5c424 DU |
416 | #ifdef CONFIG_MCAST_TFTP |
417 | if (Multicast) { | |
418 | if (MasterClient && (TftpBlock >= TftpEndingBlock)) { | |
419 | puts ("\nMulticast tftp done\n"); | |
420 | mcast_cleanup(); | |
421 | NetState = NETLOOP_SUCCESS; | |
85eb5caf | 422 | } |
53a5c424 DU |
423 | } |
424 | else | |
425 | #endif | |
426 | if (len < TftpBlkSize) { | |
fe8c2806 WD |
427 | /* |
428 | * We received the whole thing. Try to | |
429 | * run it. | |
430 | */ | |
431 | puts ("\ndone\n"); | |
432 | NetState = NETLOOP_SUCCESS; | |
433 | } | |
434 | break; | |
435 | ||
436 | case TFTP_ERROR: | |
437 | printf ("\nTFTP error: '%s' (%d)\n", | |
438 | pkt + 2, ntohs(*(ushort *)pkt)); | |
439 | puts ("Starting again\n\n"); | |
53a5c424 DU |
440 | #ifdef CONFIG_MCAST_TFTP |
441 | mcast_cleanup(); | |
442 | #endif | |
fe8c2806 WD |
443 | NetStartAgain (); |
444 | break; | |
445 | } | |
446 | } | |
447 | ||
448 | ||
449 | static void | |
450 | TftpTimeout (void) | |
451 | { | |
e83cc063 | 452 | if (++TftpTimeoutCount > TftpTimeoutCountMax) { |
fe8c2806 | 453 | puts ("\nRetry count exceeded; starting again\n"); |
53a5c424 DU |
454 | #ifdef CONFIG_MCAST_TFTP |
455 | mcast_cleanup(); | |
456 | #endif | |
fe8c2806 WD |
457 | NetStartAgain (); |
458 | } else { | |
459 | puts ("T "); | |
e83cc063 | 460 | NetSetTimeout (TftpTimeoutMSecs, TftpTimeout); |
fe8c2806 WD |
461 | TftpSend (); |
462 | } | |
463 | } | |
464 | ||
465 | ||
466 | void | |
467 | TftpStart (void) | |
468 | { | |
ecb0ccd9 WD |
469 | #ifdef CONFIG_TFTP_PORT |
470 | char *ep; /* Environment pointer */ | |
471 | #endif | |
472 | ||
a93907c4 | 473 | TftpServerIP = NetServerIP; |
fe8c2806 | 474 | if (BootFile[0] == '\0') { |
fe8c2806 | 475 | sprintf(default_filename, "%02lX%02lX%02lX%02lX.img", |
c43352cc WD |
476 | NetOurIP & 0xFF, |
477 | (NetOurIP >> 8) & 0xFF, | |
478 | (NetOurIP >> 16) & 0xFF, | |
479 | (NetOurIP >> 24) & 0xFF ); | |
a93907c4 JCPV |
480 | |
481 | strncpy(tftp_filename, default_filename, MAX_LEN); | |
482 | tftp_filename[MAX_LEN-1] = 0; | |
fe8c2806 WD |
483 | |
484 | printf ("*** Warning: no boot file name; using '%s'\n", | |
485 | tftp_filename); | |
486 | } else { | |
38cc09c5 | 487 | char *p = strchr (BootFile, ':'); |
a93907c4 JCPV |
488 | |
489 | if (p == NULL) { | |
490 | strncpy(tftp_filename, BootFile, MAX_LEN); | |
491 | tftp_filename[MAX_LEN-1] = 0; | |
492 | } else { | |
a93907c4 | 493 | TftpServerIP = string_to_ip (BootFile); |
6a86bb6c | 494 | strncpy(tftp_filename, p + 1, MAX_LEN); |
a93907c4 JCPV |
495 | tftp_filename[MAX_LEN-1] = 0; |
496 | } | |
fe8c2806 WD |
497 | } |
498 | ||
5bb226e8 WD |
499 | #if defined(CONFIG_NET_MULTI) |
500 | printf ("Using %s device\n", eth_get_name()); | |
501 | #endif | |
b6446b67 MF |
502 | printf("TFTP from server %pI4" |
503 | "; our IP address is %pI4", &TftpServerIP, &NetOurIP); | |
fe8c2806 WD |
504 | |
505 | /* Check if we need to send across this subnet */ | |
506 | if (NetOurGatewayIP && NetOurSubnetMask) { | |
a93907c4 JCPV |
507 | IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; |
508 | IPaddr_t ServerNet = TftpServerIP & NetOurSubnetMask; | |
fe8c2806 | 509 | |
b6446b67 MF |
510 | if (OurNet != ServerNet) |
511 | printf("; sending through gateway %pI4", &NetOurGatewayIP); | |
fe8c2806 WD |
512 | } |
513 | putc ('\n'); | |
514 | ||
515 | printf ("Filename '%s'.", tftp_filename); | |
516 | ||
517 | if (NetBootFileSize) { | |
518 | printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9); | |
519 | print_size (NetBootFileSize<<9, ""); | |
520 | } | |
521 | ||
522 | putc ('\n'); | |
523 | ||
524 | printf ("Load address: 0x%lx\n", load_addr); | |
525 | ||
526 | puts ("Loading: *\b"); | |
527 | ||
e83cc063 BS |
528 | TftpTimeoutMSecs = TftpRRQTimeoutMSecs; |
529 | TftpTimeoutCountMax = TftpRRQTimeoutCountMax; | |
530 | ||
531 | NetSetTimeout (TftpTimeoutMSecs, TftpTimeout); | |
fe8c2806 WD |
532 | NetSetHandler (TftpHandler); |
533 | ||
534 | TftpServerPort = WELL_KNOWN_PORT; | |
535 | TftpTimeoutCount = 0; | |
536 | TftpState = STATE_RRQ; | |
ecb0ccd9 | 537 | /* Use a pseudo-random port unless a specific port is set */ |
fe8c2806 | 538 | TftpOurPort = 1024 + (get_timer(0) % 3072); |
53a5c424 | 539 | |
ecb0ccd9 | 540 | #ifdef CONFIG_TFTP_PORT |
28cb9375 WD |
541 | if ((ep = getenv("tftpdstp")) != NULL) { |
542 | TftpServerPort = simple_strtol(ep, NULL, 10); | |
543 | } | |
544 | if ((ep = getenv("tftpsrcp")) != NULL) { | |
ecb0ccd9 WD |
545 | TftpOurPort= simple_strtol(ep, NULL, 10); |
546 | } | |
547 | #endif | |
fbe4b5cb | 548 | TftpBlock = 0; |
fe8c2806 | 549 | |
73a8b27c WD |
550 | /* zero out server ether in case the server ip has changed */ |
551 | memset(NetServerEther, 0, 6); | |
53a5c424 DU |
552 | /* Revert TftpBlkSize to dflt */ |
553 | TftpBlkSize = TFTP_BLOCK_SIZE; | |
554 | #ifdef CONFIG_MCAST_TFTP | |
a93907c4 | 555 | mcast_cleanup(); |
53a5c424 | 556 | #endif |
73a8b27c | 557 | |
fe8c2806 WD |
558 | TftpSend (); |
559 | } | |
560 | ||
53a5c424 DU |
561 | #ifdef CONFIG_MCAST_TFTP |
562 | /* Credits: atftp project. | |
563 | */ | |
564 | ||
565 | /* pick up BcastAddr, Port, and whether I am [now] the master-client. * | |
566 | * Frame: | |
567 | * +-------+-----------+---+-------~~-------+---+ | |
568 | * | opc | multicast | 0 | addr, port, mc | 0 | | |
569 | * +-------+-----------+---+-------~~-------+---+ | |
570 | * The multicast addr/port becomes what I listen to, and if 'mc' is '1' then | |
571 | * I am the new master-client so must send ACKs to DataBlocks. If I am not | |
572 | * master-client, I'm a passive client, gathering what DataBlocks I may and | |
573 | * making note of which ones I got in my bitmask. | |
574 | * In theory, I never go from master->passive.. | |
575 | * .. this comes in with pkt already pointing just past opc | |
576 | */ | |
577 | static void parse_multicast_oack(char *pkt, int len) | |
578 | { | |
579 | int i; | |
580 | IPaddr_t addr; | |
581 | char *mc_adr, *port, *mc; | |
582 | ||
583 | mc_adr=port=mc=NULL; | |
584 | /* march along looking for 'multicast\0', which has to start at least | |
585 | * 14 bytes back from the end. | |
586 | */ | |
587 | for (i=0;i<len-14;i++) | |
588 | if (strcmp (pkt+i,"multicast") == 0) | |
589 | break; | |
590 | if (i >= (len-14)) /* non-Multicast OACK, ign. */ | |
591 | return; | |
85eb5caf | 592 | |
53a5c424 DU |
593 | i+=10; /* strlen multicast */ |
594 | mc_adr = pkt+i; | |
595 | for (;i<len;i++) { | |
596 | if (*(pkt+i) == ',') { | |
597 | *(pkt+i) = '\0'; | |
598 | if (port) { | |
599 | mc = pkt+i+1; | |
600 | break; | |
601 | } else { | |
602 | port = pkt+i+1; | |
603 | } | |
604 | } | |
605 | } | |
606 | if (!port || !mc_adr || !mc ) return; | |
607 | if (Multicast && MasterClient) { | |
608 | printf ("I got a OACK as master Client, WRONG!\n"); | |
609 | return; | |
610 | } | |
611 | /* ..I now accept packets destined for this MCAST addr, port */ | |
612 | if (!Multicast) { | |
613 | if (Bitmap) { | |
614 | printf ("Internal failure! no mcast.\n"); | |
615 | free(Bitmap); | |
616 | Bitmap=NULL; | |
617 | ProhibitMcast=1; | |
618 | return ; | |
619 | } | |
620 | /* I malloc instead of pre-declare; so that if the file ends | |
85eb5caf WD |
621 | * up being too big for this bitmap I can retry |
622 | */ | |
53a5c424 DU |
623 | if (!(Bitmap = malloc (Mapsize))) { |
624 | printf ("No Bitmap, no multicast. Sorry.\n"); | |
625 | ProhibitMcast=1; | |
626 | return; | |
627 | } | |
628 | memset (Bitmap,0,Mapsize); | |
629 | PrevBitmapHole = 0; | |
630 | Multicast = 1; | |
631 | } | |
632 | addr = string_to_ip(mc_adr); | |
633 | if (Mcast_addr != addr) { | |
634 | if (Mcast_addr) | |
635 | eth_mcast_join(Mcast_addr, 0); | |
636 | if (eth_mcast_join(Mcast_addr=addr, 1)) { | |
637 | printf ("Fail to set mcast, revert to TFTP\n"); | |
638 | ProhibitMcast=1; | |
639 | mcast_cleanup(); | |
640 | NetStartAgain(); | |
641 | } | |
642 | } | |
643 | MasterClient = (unsigned char)simple_strtoul((char *)mc,NULL,10); | |
644 | Mcast_port = (unsigned short)simple_strtoul(port,NULL,10); | |
645 | printf ("Multicast: %s:%d [%d]\n", mc_adr, Mcast_port, MasterClient); | |
646 | return; | |
647 | } | |
648 | ||
649 | #endif /* Multicast TFTP */ | |
650 | ||
30b52df9 | 651 | #endif |