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Commit | Line | Data |
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fe8c2806 | 1 | /* |
2f09413f LC |
2 | * Copyright 1994, 1995, 2000 Neil Russell. |
3 | * (See License) | |
4 | * Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de | |
e59e3562 LC |
5 | * Copyright 2011 Comelit Group SpA, |
6 | * Luca Ceresoli <luca.ceresoli@comelit.it> | |
fe8c2806 WD |
7 | */ |
8 | ||
9 | #include <common.h> | |
10 | #include <command.h> | |
11 | #include <net.h> | |
12 | #include "tftp.h" | |
13 | #include "bootp.h" | |
14 | ||
2f09413f LC |
15 | /* Well known TFTP port # */ |
16 | #define WELL_KNOWN_PORT 69 | |
17 | /* Millisecs to timeout for lost pkt */ | |
18 | #define TIMEOUT 5000UL | |
fe8c2806 | 19 | #ifndef CONFIG_NET_RETRY_COUNT |
2f09413f LC |
20 | /* # of timeouts before giving up */ |
21 | # define TIMEOUT_COUNT 10 | |
fe8c2806 WD |
22 | #else |
23 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2) | |
24 | #endif | |
2f09413f LC |
25 | /* Number of "loading" hashes per line (for checking the image size) */ |
26 | #define HASHES_PER_LINE 65 | |
fe8c2806 WD |
27 | |
28 | /* | |
29 | * TFTP operations. | |
30 | */ | |
31 | #define TFTP_RRQ 1 | |
32 | #define TFTP_WRQ 2 | |
33 | #define TFTP_DATA 3 | |
34 | #define TFTP_ACK 4 | |
35 | #define TFTP_ERROR 5 | |
fbe4b5cb | 36 | #define TFTP_OACK 6 |
fe8c2806 | 37 | |
e83cc063 BS |
38 | static ulong TftpTimeoutMSecs = TIMEOUT; |
39 | static int TftpTimeoutCountMax = TIMEOUT_COUNT; | |
40 | ||
41 | /* | |
42 | * These globals govern the timeout behavior when attempting a connection to a | |
43 | * TFTP server. TftpRRQTimeoutMSecs specifies the number of milliseconds to | |
44 | * wait for the server to respond to initial connection. Second global, | |
45 | * TftpRRQTimeoutCountMax, gives the number of such connection retries. | |
46 | * TftpRRQTimeoutCountMax must be non-negative and TftpRRQTimeoutMSecs must be | |
47 | * positive. The globals are meant to be set (and restored) by code needing | |
48 | * non-standard timeout behavior when initiating a TFTP transfer. | |
49 | */ | |
50 | ulong TftpRRQTimeoutMSecs = TIMEOUT; | |
51 | int TftpRRQTimeoutCountMax = TIMEOUT_COUNT; | |
52 | ||
aafda38f RB |
53 | enum { |
54 | TFTP_ERR_UNDEFINED = 0, | |
55 | TFTP_ERR_FILE_NOT_FOUND = 1, | |
56 | TFTP_ERR_ACCESS_DENIED = 2, | |
57 | TFTP_ERR_DISK_FULL = 3, | |
58 | TFTP_ERR_UNEXPECTED_OPCODE = 4, | |
59 | TFTP_ERR_UNKNOWN_TRANSFER_ID = 5, | |
60 | TFTP_ERR_FILE_ALREADY_EXISTS = 6, | |
61 | }; | |
62 | ||
20478cea | 63 | static IPaddr_t TftpRemoteIP; |
2f09413f | 64 | /* The UDP port at their end */ |
20478cea | 65 | static int TftpRemotePort; |
2f09413f LC |
66 | /* The UDP port at our end */ |
67 | static int TftpOurPort; | |
fe8c2806 | 68 | static int TftpTimeoutCount; |
2f09413f LC |
69 | /* packet sequence number */ |
70 | static ulong TftpBlock; | |
71 | /* last packet sequence number received */ | |
72 | static ulong TftpLastBlock; | |
73 | /* count of sequence number wraparounds */ | |
74 | static ulong TftpBlockWrap; | |
75 | /* memory offset due to wrapping */ | |
76 | static ulong TftpBlockWrapOffset; | |
fe8c2806 | 77 | static int TftpState; |
4fccb818 | 78 | #ifdef CONFIG_TFTP_TSIZE |
2f09413f LC |
79 | /* The file size reported by the server */ |
80 | static int TftpTsize; | |
81 | /* The number of hashes we printed */ | |
82 | static short TftpNumchars; | |
4fccb818 | 83 | #endif |
3f85ce27 | 84 | |
e3fb0abe | 85 | #define STATE_SEND_RRQ 1 |
fe8c2806 WD |
86 | #define STATE_DATA 2 |
87 | #define STATE_TOO_LARGE 3 | |
88 | #define STATE_BAD_MAGIC 4 | |
fbe4b5cb | 89 | #define STATE_OACK 5 |
e59e3562 | 90 | #define STATE_RECV_WRQ 6 |
fe8c2806 | 91 | |
2f09413f LC |
92 | /* default TFTP block size */ |
93 | #define TFTP_BLOCK_SIZE 512 | |
94 | /* sequence number is 16 bit */ | |
95 | #define TFTP_SEQUENCE_SIZE ((ulong)(1<<16)) | |
3f85ce27 | 96 | |
fe8c2806 WD |
97 | #define DEFAULT_NAME_LEN (8 + 4 + 1) |
98 | static char default_filename[DEFAULT_NAME_LEN]; | |
a93907c4 JCPV |
99 | |
100 | #ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN | |
101 | #define MAX_LEN 128 | |
102 | #else | |
103 | #define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN | |
104 | #endif | |
105 | ||
106 | static char tftp_filename[MAX_LEN]; | |
fe8c2806 | 107 | |
6d0f6bcf | 108 | #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
e6f2e902 | 109 | extern flash_info_t flash_info[]; |
fe8c2806 WD |
110 | #endif |
111 | ||
85eb5caf WD |
112 | /* 512 is poor choice for ethernet, MTU is typically 1500. |
113 | * Minus eth.hdrs thats 1468. Can get 2x better throughput with | |
53a5c424 | 114 | * almost-MTU block sizes. At least try... fall back to 512 if need be. |
89ba81d1 | 115 | * (but those using CONFIG_IP_DEFRAG may want to set a larger block in cfg file) |
53a5c424 | 116 | */ |
89ba81d1 AR |
117 | #ifdef CONFIG_TFTP_BLOCKSIZE |
118 | #define TFTP_MTU_BLOCKSIZE CONFIG_TFTP_BLOCKSIZE | |
119 | #else | |
53a5c424 | 120 | #define TFTP_MTU_BLOCKSIZE 1468 |
89ba81d1 AR |
121 | #endif |
122 | ||
c718b143 LC |
123 | static unsigned short TftpBlkSize = TFTP_BLOCK_SIZE; |
124 | static unsigned short TftpBlkSizeOption = TFTP_MTU_BLOCKSIZE; | |
53a5c424 DU |
125 | |
126 | #ifdef CONFIG_MCAST_TFTP | |
127 | #include <malloc.h> | |
128 | #define MTFTP_BITMAPSIZE 0x1000 | |
129 | static unsigned *Bitmap; | |
c718b143 | 130 | static int PrevBitmapHole, Mapsize = MTFTP_BITMAPSIZE; |
9bb0a1bf LC |
131 | static uchar ProhibitMcast, MasterClient; |
132 | static uchar Multicast; | |
53a5c424 DU |
133 | extern IPaddr_t Mcast_addr; |
134 | static int Mcast_port; | |
135 | static ulong TftpEndingBlock; /* can get 'last' block before done..*/ | |
136 | ||
c718b143 | 137 | static void parse_multicast_oack(char *pkt, int len); |
53a5c424 DU |
138 | |
139 | static void | |
140 | mcast_cleanup(void) | |
141 | { | |
6d2231e8 LC |
142 | if (Mcast_addr) |
143 | eth_mcast_join(Mcast_addr, 0); | |
144 | if (Bitmap) | |
145 | free(Bitmap); | |
c718b143 | 146 | Bitmap = NULL; |
53a5c424 DU |
147 | Mcast_addr = Multicast = Mcast_port = 0; |
148 | TftpEndingBlock = -1; | |
149 | } | |
150 | ||
151 | #endif /* CONFIG_MCAST_TFTP */ | |
152 | ||
fe8c2806 | 153 | static __inline__ void |
2e320257 | 154 | store_block(unsigned block, uchar *src, unsigned len) |
fe8c2806 | 155 | { |
53a5c424 | 156 | ulong offset = block * TftpBlkSize + TftpBlockWrapOffset; |
3f85ce27 | 157 | ulong newsize = offset + len; |
6d0f6bcf | 158 | #ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
fe8c2806 WD |
159 | int i, rc = 0; |
160 | ||
c718b143 | 161 | for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { |
fe8c2806 | 162 | /* start address in flash? */ |
be1b0d27 JF |
163 | if (flash_info[i].flash_id == FLASH_UNKNOWN) |
164 | continue; | |
fe8c2806 WD |
165 | if (load_addr + offset >= flash_info[i].start[0]) { |
166 | rc = 1; | |
167 | break; | |
168 | } | |
169 | } | |
170 | ||
171 | if (rc) { /* Flash is destination for this packet */ | |
c718b143 | 172 | rc = flash_write((char *)src, (ulong)(load_addr+offset), len); |
fe8c2806 | 173 | if (rc) { |
c718b143 | 174 | flash_perror(rc); |
fe8c2806 WD |
175 | NetState = NETLOOP_FAIL; |
176 | return; | |
177 | } | |
178 | } | |
179 | else | |
6d0f6bcf | 180 | #endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */ |
fe8c2806 WD |
181 | { |
182 | (void)memcpy((void *)(load_addr + offset), src, len); | |
183 | } | |
53a5c424 DU |
184 | #ifdef CONFIG_MCAST_TFTP |
185 | if (Multicast) | |
186 | ext2_set_bit(block, Bitmap); | |
187 | #endif | |
fe8c2806 WD |
188 | |
189 | if (NetBootFileXferSize < newsize) | |
190 | NetBootFileXferSize = newsize; | |
191 | } | |
192 | ||
c718b143 LC |
193 | static void TftpSend(void); |
194 | static void TftpTimeout(void); | |
fe8c2806 WD |
195 | |
196 | /**********************************************************************/ | |
197 | ||
f5329bbc SG |
198 | static void show_block_marker(void) |
199 | { | |
200 | #ifdef CONFIG_TFTP_TSIZE | |
201 | if (TftpTsize) { | |
202 | ulong pos = TftpBlock * TftpBlkSize + TftpBlockWrapOffset; | |
203 | ||
204 | while (TftpNumchars < pos * 50 / TftpTsize) { | |
205 | putc('#'); | |
206 | TftpNumchars++; | |
207 | } | |
208 | } | |
209 | #endif | |
210 | else { | |
211 | if (((TftpBlock - 1) % 10) == 0) | |
212 | putc('#'); | |
213 | else if ((TftpBlock % (10 * HASHES_PER_LINE)) == 0) | |
214 | puts("\n\t "); | |
215 | } | |
216 | } | |
217 | ||
218 | /* The TFTP get or put is complete */ | |
219 | static void tftp_complete(void) | |
220 | { | |
221 | #ifdef CONFIG_TFTP_TSIZE | |
222 | /* Print hash marks for the last packet received */ | |
223 | while (TftpTsize && TftpNumchars < 49) { | |
224 | putc('#'); | |
225 | TftpNumchars++; | |
226 | } | |
227 | #endif | |
228 | puts("\ndone\n"); | |
229 | NetState = NETLOOP_SUCCESS; | |
230 | } | |
231 | ||
fe8c2806 | 232 | static void |
c718b143 | 233 | TftpSend(void) |
fe8c2806 | 234 | { |
2e320257 LC |
235 | volatile uchar *pkt; |
236 | volatile uchar *xp; | |
237 | int len = 0; | |
7bc5ee07 | 238 | volatile ushort *s; |
fe8c2806 | 239 | |
85eb5caf | 240 | #ifdef CONFIG_MCAST_TFTP |
53a5c424 | 241 | /* Multicast TFTP.. non-MasterClients do not ACK data. */ |
85eb5caf WD |
242 | if (Multicast |
243 | && (TftpState == STATE_DATA) | |
244 | && (MasterClient == 0)) | |
53a5c424 DU |
245 | return; |
246 | #endif | |
fe8c2806 WD |
247 | /* |
248 | * We will always be sending some sort of packet, so | |
249 | * cobble together the packet headers now. | |
250 | */ | |
a3d991bd | 251 | pkt = NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE; |
fe8c2806 WD |
252 | |
253 | switch (TftpState) { | |
254 | ||
e3fb0abe | 255 | case STATE_SEND_RRQ: |
fe8c2806 | 256 | xp = pkt; |
7bc5ee07 WD |
257 | s = (ushort *)pkt; |
258 | *s++ = htons(TFTP_RRQ); | |
259 | pkt = (uchar *)s; | |
c718b143 | 260 | strcpy((char *)pkt, tftp_filename); |
fe8c2806 | 261 | pkt += strlen(tftp_filename) + 1; |
c718b143 | 262 | strcpy((char *)pkt, "octet"); |
fe8c2806 | 263 | pkt += 5 /*strlen("octet")*/ + 1; |
c718b143 | 264 | strcpy((char *)pkt, "timeout"); |
fbe4b5cb | 265 | pkt += 7 /*strlen("timeout")*/ + 1; |
c96f86ee | 266 | sprintf((char *)pkt, "%lu", TftpTimeoutMSecs / 1000); |
0ebf04c6 | 267 | debug("send option \"timeout %s\"\n", (char *)pkt); |
fbe4b5cb | 268 | pkt += strlen((char *)pkt) + 1; |
4fccb818 RG |
269 | #ifdef CONFIG_TFTP_TSIZE |
270 | memcpy((char *)pkt, "tsize\0000\0", 8); | |
271 | pkt += 8; | |
272 | #endif | |
53a5c424 | 273 | /* try for more effic. blk size */ |
c718b143 LC |
274 | pkt += sprintf((char *)pkt, "blksize%c%d%c", |
275 | 0, TftpBlkSizeOption, 0); | |
85eb5caf | 276 | #ifdef CONFIG_MCAST_TFTP |
53a5c424 | 277 | /* Check all preconditions before even trying the option */ |
85eb5caf | 278 | if (!ProhibitMcast |
c718b143 | 279 | && (Bitmap = malloc(Mapsize)) |
53a5c424 DU |
280 | && eth_get_dev()->mcast) { |
281 | free(Bitmap); | |
c718b143 LC |
282 | Bitmap = NULL; |
283 | pkt += sprintf((char *)pkt, "multicast%c%c", 0, 0); | |
53a5c424 DU |
284 | } |
285 | #endif /* CONFIG_MCAST_TFTP */ | |
fe8c2806 WD |
286 | len = pkt - xp; |
287 | break; | |
288 | ||
fbe4b5cb | 289 | case STATE_OACK: |
53a5c424 DU |
290 | #ifdef CONFIG_MCAST_TFTP |
291 | /* My turn! Start at where I need blocks I missed.*/ | |
292 | if (Multicast) | |
c718b143 LC |
293 | TftpBlock = ext2_find_next_zero_bit(Bitmap, |
294 | (Mapsize*8), 0); | |
53a5c424 DU |
295 | /*..falling..*/ |
296 | #endif | |
e59e3562 LC |
297 | |
298 | case STATE_RECV_WRQ: | |
53a5c424 | 299 | case STATE_DATA: |
fe8c2806 | 300 | xp = pkt; |
7bc5ee07 WD |
301 | s = (ushort *)pkt; |
302 | *s++ = htons(TFTP_ACK); | |
303 | *s++ = htons(TftpBlock); | |
304 | pkt = (uchar *)s; | |
fe8c2806 WD |
305 | len = pkt - xp; |
306 | break; | |
307 | ||
308 | case STATE_TOO_LARGE: | |
309 | xp = pkt; | |
7bc5ee07 WD |
310 | s = (ushort *)pkt; |
311 | *s++ = htons(TFTP_ERROR); | |
312 | *s++ = htons(3); | |
313 | pkt = (uchar *)s; | |
c718b143 | 314 | strcpy((char *)pkt, "File too large"); |
fe8c2806 WD |
315 | pkt += 14 /*strlen("File too large")*/ + 1; |
316 | len = pkt - xp; | |
317 | break; | |
318 | ||
319 | case STATE_BAD_MAGIC: | |
320 | xp = pkt; | |
7bc5ee07 WD |
321 | s = (ushort *)pkt; |
322 | *s++ = htons(TFTP_ERROR); | |
323 | *s++ = htons(2); | |
324 | pkt = (uchar *)s; | |
c718b143 | 325 | strcpy((char *)pkt, "File has bad magic"); |
fe8c2806 WD |
326 | pkt += 18 /*strlen("File has bad magic")*/ + 1; |
327 | len = pkt - xp; | |
328 | break; | |
329 | } | |
330 | ||
20478cea | 331 | NetSendUDPPacket(NetServerEther, TftpRemoteIP, TftpRemotePort, |
2f09413f | 332 | TftpOurPort, len); |
fe8c2806 WD |
333 | } |
334 | ||
335 | ||
336 | static void | |
03eb129f LC |
337 | TftpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
338 | unsigned len) | |
fe8c2806 WD |
339 | { |
340 | ushort proto; | |
7bc5ee07 | 341 | ushort *s; |
ff13ac8c | 342 | int i; |
fe8c2806 WD |
343 | |
344 | if (dest != TftpOurPort) { | |
53a5c424 | 345 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 346 | if (Multicast |
53a5c424 DU |
347 | && (!Mcast_port || (dest != Mcast_port))) |
348 | #endif | |
0bdd8acc | 349 | return; |
fe8c2806 | 350 | } |
e59e3562 LC |
351 | if (TftpState != STATE_SEND_RRQ && src != TftpRemotePort && |
352 | TftpState != STATE_RECV_WRQ) | |
fe8c2806 | 353 | return; |
fe8c2806 | 354 | |
7bc325a1 | 355 | if (len < 2) |
fe8c2806 | 356 | return; |
fe8c2806 WD |
357 | len -= 2; |
358 | /* warning: don't use increment (++) in ntohs() macros!! */ | |
7bc5ee07 WD |
359 | s = (ushort *)pkt; |
360 | proto = *s++; | |
361 | pkt = (uchar *)s; | |
fe8c2806 WD |
362 | switch (ntohs(proto)) { |
363 | ||
364 | case TFTP_RRQ: | |
fe8c2806 WD |
365 | case TFTP_ACK: |
366 | break; | |
367 | default: | |
368 | break; | |
369 | ||
e59e3562 LC |
370 | #ifdef CONFIG_CMD_TFTPSRV |
371 | case TFTP_WRQ: | |
372 | debug("Got WRQ\n"); | |
373 | TftpRemoteIP = sip; | |
374 | TftpRemotePort = src; | |
375 | TftpOurPort = 1024 + (get_timer(0) % 3072); | |
376 | TftpLastBlock = 0; | |
377 | TftpBlockWrap = 0; | |
378 | TftpBlockWrapOffset = 0; | |
379 | TftpSend(); /* Send ACK(0) */ | |
380 | break; | |
381 | #endif | |
382 | ||
fbe4b5cb | 383 | case TFTP_OACK: |
d371708a WD |
384 | debug("Got OACK: %s %s\n", |
385 | pkt, | |
386 | pkt + strlen((char *)pkt) + 1); | |
fbe4b5cb | 387 | TftpState = STATE_OACK; |
20478cea | 388 | TftpRemotePort = src; |
60174746 WD |
389 | /* |
390 | * Check for 'blksize' option. | |
391 | * Careful: "i" is signed, "len" is unsigned, thus | |
392 | * something like "len-8" may give a *huge* number | |
393 | */ | |
c718b143 | 394 | for (i = 0; i+8 < len; i++) { |
2e320257 | 395 | if (strcmp((char *)pkt+i, "blksize") == 0) { |
ff13ac8c | 396 | TftpBlkSize = (unsigned short) |
2e320257 | 397 | simple_strtoul((char *)pkt+i+8, NULL, |
c718b143 | 398 | 10); |
0ebf04c6 | 399 | debug("Blocksize ack: %s, %d\n", |
2e320257 | 400 | (char *)pkt+i+8, TftpBlkSize); |
ff13ac8c | 401 | } |
4fccb818 | 402 | #ifdef CONFIG_TFTP_TSIZE |
2e320257 LC |
403 | if (strcmp((char *)pkt+i, "tsize") == 0) { |
404 | TftpTsize = simple_strtoul((char *)pkt+i+6, | |
2f09413f | 405 | NULL, 10); |
4fccb818 | 406 | debug("size = %s, %d\n", |
2e320257 | 407 | (char *)pkt+i+6, TftpTsize); |
4fccb818 RG |
408 | } |
409 | #endif | |
53a5c424 DU |
410 | } |
411 | #ifdef CONFIG_MCAST_TFTP | |
c718b143 | 412 | parse_multicast_oack((char *)pkt, len-1); |
85eb5caf | 413 | if ((Multicast) && (!MasterClient)) |
53a5c424 DU |
414 | TftpState = STATE_DATA; /* passive.. */ |
415 | else | |
416 | #endif | |
c718b143 | 417 | TftpSend(); /* Send ACK */ |
fbe4b5cb | 418 | break; |
fe8c2806 WD |
419 | case TFTP_DATA: |
420 | if (len < 2) | |
421 | return; | |
422 | len -= 2; | |
423 | TftpBlock = ntohs(*(ushort *)pkt); | |
3f85ce27 WD |
424 | |
425 | /* | |
cd0a9de6 WD |
426 | * RFC1350 specifies that the first data packet will |
427 | * have sequence number 1. If we receive a sequence | |
428 | * number of 0 this means that there was a wrap | |
429 | * around of the (16 bit) counter. | |
3f85ce27 WD |
430 | */ |
431 | if (TftpBlock == 0) { | |
432 | TftpBlockWrap++; | |
2f09413f LC |
433 | TftpBlockWrapOffset += |
434 | TftpBlkSize * TFTP_SEQUENCE_SIZE; | |
c718b143 | 435 | printf("\n\t %lu MB received\n\t ", |
2f09413f | 436 | TftpBlockWrapOffset>>20); |
f5329bbc SG |
437 | } else { |
438 | show_block_marker(); | |
fe8c2806 WD |
439 | } |
440 | ||
e3fb0abe | 441 | if (TftpState == STATE_SEND_RRQ) |
0ebf04c6 | 442 | debug("Server did not acknowledge timeout option!\n"); |
fbe4b5cb | 443 | |
e59e3562 LC |
444 | if (TftpState == STATE_SEND_RRQ || TftpState == STATE_OACK || |
445 | TftpState == STATE_RECV_WRQ) { | |
3f85ce27 | 446 | /* first block received */ |
fe8c2806 | 447 | TftpState = STATE_DATA; |
20478cea | 448 | TftpRemotePort = src; |
fe8c2806 | 449 | TftpLastBlock = 0; |
3f85ce27 WD |
450 | TftpBlockWrap = 0; |
451 | TftpBlockWrapOffset = 0; | |
fe8c2806 | 452 | |
53a5c424 DU |
453 | #ifdef CONFIG_MCAST_TFTP |
454 | if (Multicast) { /* start!=1 common if mcast */ | |
455 | TftpLastBlock = TftpBlock - 1; | |
456 | } else | |
457 | #endif | |
fe8c2806 | 458 | if (TftpBlock != 1) { /* Assertion */ |
c718b143 LC |
459 | printf("\nTFTP error: " |
460 | "First block is not block 1 (%ld)\n" | |
461 | "Starting again\n\n", | |
fe8c2806 | 462 | TftpBlock); |
c718b143 | 463 | NetStartAgain(); |
fe8c2806 WD |
464 | break; |
465 | } | |
466 | } | |
467 | ||
468 | if (TftpBlock == TftpLastBlock) { | |
469 | /* | |
470 | * Same block again; ignore it. | |
471 | */ | |
472 | break; | |
473 | } | |
474 | ||
475 | TftpLastBlock = TftpBlock; | |
e83cc063 | 476 | TftpTimeoutCountMax = TIMEOUT_COUNT; |
c718b143 | 477 | NetSetTimeout(TftpTimeoutMSecs, TftpTimeout); |
fe8c2806 | 478 | |
c718b143 | 479 | store_block(TftpBlock - 1, pkt + 2, len); |
fe8c2806 WD |
480 | |
481 | /* | |
4d69e98c | 482 | * Acknowledge the block just received, which will prompt |
20478cea | 483 | * the remote for the next one. |
fe8c2806 | 484 | */ |
53a5c424 | 485 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf WD |
486 | /* if I am the MasterClient, actively calculate what my next |
487 | * needed block is; else I'm passive; not ACKING | |
a93907c4 | 488 | */ |
53a5c424 DU |
489 | if (Multicast) { |
490 | if (len < TftpBlkSize) { | |
491 | TftpEndingBlock = TftpBlock; | |
492 | } else if (MasterClient) { | |
85eb5caf | 493 | TftpBlock = PrevBitmapHole = |
53a5c424 DU |
494 | ext2_find_next_zero_bit( |
495 | Bitmap, | |
496 | (Mapsize*8), | |
497 | PrevBitmapHole); | |
498 | if (TftpBlock > ((Mapsize*8) - 1)) { | |
c718b143 | 499 | printf("tftpfile too big\n"); |
53a5c424 | 500 | /* try to double it and retry */ |
c718b143 | 501 | Mapsize <<= 1; |
53a5c424 | 502 | mcast_cleanup(); |
c718b143 | 503 | NetStartAgain(); |
53a5c424 DU |
504 | return; |
505 | } | |
506 | TftpLastBlock = TftpBlock; | |
507 | } | |
508 | } | |
509 | #endif | |
c718b143 | 510 | TftpSend(); |
fe8c2806 | 511 | |
53a5c424 DU |
512 | #ifdef CONFIG_MCAST_TFTP |
513 | if (Multicast) { | |
514 | if (MasterClient && (TftpBlock >= TftpEndingBlock)) { | |
c718b143 | 515 | puts("\nMulticast tftp done\n"); |
53a5c424 DU |
516 | mcast_cleanup(); |
517 | NetState = NETLOOP_SUCCESS; | |
85eb5caf | 518 | } |
53a5c424 DU |
519 | } |
520 | else | |
521 | #endif | |
f5329bbc SG |
522 | if (len < TftpBlkSize) |
523 | tftp_complete(); | |
fe8c2806 WD |
524 | break; |
525 | ||
526 | case TFTP_ERROR: | |
c718b143 LC |
527 | printf("\nTFTP error: '%s' (%d)\n", |
528 | pkt + 2, ntohs(*(ushort *)pkt)); | |
aafda38f RB |
529 | |
530 | switch (ntohs(*(ushort *)pkt)) { | |
531 | case TFTP_ERR_FILE_NOT_FOUND: | |
532 | case TFTP_ERR_ACCESS_DENIED: | |
533 | puts("Not retrying...\n"); | |
534 | eth_halt(); | |
535 | NetState = NETLOOP_FAIL; | |
536 | break; | |
537 | case TFTP_ERR_UNDEFINED: | |
538 | case TFTP_ERR_DISK_FULL: | |
539 | case TFTP_ERR_UNEXPECTED_OPCODE: | |
540 | case TFTP_ERR_UNKNOWN_TRANSFER_ID: | |
541 | case TFTP_ERR_FILE_ALREADY_EXISTS: | |
542 | default: | |
543 | puts("Starting again\n\n"); | |
53a5c424 | 544 | #ifdef CONFIG_MCAST_TFTP |
aafda38f | 545 | mcast_cleanup(); |
53a5c424 | 546 | #endif |
aafda38f RB |
547 | NetStartAgain(); |
548 | break; | |
549 | } | |
fe8c2806 WD |
550 | break; |
551 | } | |
552 | } | |
553 | ||
554 | ||
555 | static void | |
c718b143 | 556 | TftpTimeout(void) |
fe8c2806 | 557 | { |
e83cc063 | 558 | if (++TftpTimeoutCount > TftpTimeoutCountMax) { |
c718b143 | 559 | puts("\nRetry count exceeded; starting again\n"); |
53a5c424 DU |
560 | #ifdef CONFIG_MCAST_TFTP |
561 | mcast_cleanup(); | |
562 | #endif | |
c718b143 | 563 | NetStartAgain(); |
fe8c2806 | 564 | } else { |
c718b143 LC |
565 | puts("T "); |
566 | NetSetTimeout(TftpTimeoutMSecs, TftpTimeout); | |
e59e3562 LC |
567 | if (TftpState != STATE_RECV_WRQ) |
568 | TftpSend(); | |
fe8c2806 WD |
569 | } |
570 | } | |
571 | ||
572 | ||
573 | void | |
c718b143 | 574 | TftpStart(void) |
fe8c2806 | 575 | { |
ecb0ccd9 | 576 | char *ep; /* Environment pointer */ |
89ba81d1 | 577 | |
c96f86ee WD |
578 | /* |
579 | * Allow the user to choose TFTP blocksize and timeout. | |
580 | * TFTP protocol has a minimal timeout of 1 second. | |
581 | */ | |
2cb53608 LC |
582 | ep = getenv("tftpblocksize"); |
583 | if (ep != NULL) | |
89ba81d1 | 584 | TftpBlkSizeOption = simple_strtol(ep, NULL, 10); |
c96f86ee | 585 | |
2cb53608 LC |
586 | ep = getenv("tftptimeout"); |
587 | if (ep != NULL) | |
c96f86ee WD |
588 | TftpTimeoutMSecs = simple_strtol(ep, NULL, 10); |
589 | ||
590 | if (TftpTimeoutMSecs < 1000) { | |
591 | printf("TFTP timeout (%ld ms) too low, " | |
592 | "set minimum = 1000 ms\n", | |
593 | TftpTimeoutMSecs); | |
594 | TftpTimeoutMSecs = 1000; | |
595 | } | |
596 | ||
597 | debug("TFTP blocksize = %i, timeout = %ld ms\n", | |
598 | TftpBlkSizeOption, TftpTimeoutMSecs); | |
ecb0ccd9 | 599 | |
20478cea | 600 | TftpRemoteIP = NetServerIP; |
fe8c2806 | 601 | if (BootFile[0] == '\0') { |
fe8c2806 | 602 | sprintf(default_filename, "%02lX%02lX%02lX%02lX.img", |
c43352cc WD |
603 | NetOurIP & 0xFF, |
604 | (NetOurIP >> 8) & 0xFF, | |
605 | (NetOurIP >> 16) & 0xFF, | |
c718b143 | 606 | (NetOurIP >> 24) & 0xFF); |
a93907c4 JCPV |
607 | |
608 | strncpy(tftp_filename, default_filename, MAX_LEN); | |
609 | tftp_filename[MAX_LEN-1] = 0; | |
fe8c2806 | 610 | |
c718b143 | 611 | printf("*** Warning: no boot file name; using '%s'\n", |
fe8c2806 WD |
612 | tftp_filename); |
613 | } else { | |
c718b143 | 614 | char *p = strchr(BootFile, ':'); |
a93907c4 JCPV |
615 | |
616 | if (p == NULL) { | |
617 | strncpy(tftp_filename, BootFile, MAX_LEN); | |
618 | tftp_filename[MAX_LEN-1] = 0; | |
619 | } else { | |
20478cea | 620 | TftpRemoteIP = string_to_ip(BootFile); |
6a86bb6c | 621 | strncpy(tftp_filename, p + 1, MAX_LEN); |
a93907c4 JCPV |
622 | tftp_filename[MAX_LEN-1] = 0; |
623 | } | |
fe8c2806 WD |
624 | } |
625 | ||
c718b143 | 626 | printf("Using %s device\n", eth_get_name()); |
b6446b67 | 627 | printf("TFTP from server %pI4" |
20478cea | 628 | "; our IP address is %pI4", &TftpRemoteIP, &NetOurIP); |
fe8c2806 WD |
629 | |
630 | /* Check if we need to send across this subnet */ | |
631 | if (NetOurGatewayIP && NetOurSubnetMask) { | |
0bdd8acc | 632 | IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; |
20478cea | 633 | IPaddr_t RemoteNet = TftpRemoteIP & NetOurSubnetMask; |
fe8c2806 | 634 | |
20478cea | 635 | if (OurNet != RemoteNet) |
0bdd8acc LC |
636 | printf("; sending through gateway %pI4", |
637 | &NetOurGatewayIP); | |
fe8c2806 | 638 | } |
c718b143 | 639 | putc('\n'); |
fe8c2806 | 640 | |
c718b143 | 641 | printf("Filename '%s'.", tftp_filename); |
fe8c2806 WD |
642 | |
643 | if (NetBootFileSize) { | |
c718b143 LC |
644 | printf(" Size is 0x%x Bytes = ", NetBootFileSize<<9); |
645 | print_size(NetBootFileSize<<9, ""); | |
fe8c2806 WD |
646 | } |
647 | ||
c718b143 | 648 | putc('\n'); |
fe8c2806 | 649 | |
c718b143 | 650 | printf("Load address: 0x%lx\n", load_addr); |
fe8c2806 | 651 | |
c718b143 | 652 | puts("Loading: *\b"); |
fe8c2806 | 653 | |
e83cc063 BS |
654 | TftpTimeoutCountMax = TftpRRQTimeoutCountMax; |
655 | ||
c718b143 LC |
656 | NetSetTimeout(TftpTimeoutMSecs, TftpTimeout); |
657 | NetSetHandler(TftpHandler); | |
fe8c2806 | 658 | |
20478cea | 659 | TftpRemotePort = WELL_KNOWN_PORT; |
fe8c2806 | 660 | TftpTimeoutCount = 0; |
e3fb0abe | 661 | TftpState = STATE_SEND_RRQ; |
ecb0ccd9 | 662 | /* Use a pseudo-random port unless a specific port is set */ |
fe8c2806 | 663 | TftpOurPort = 1024 + (get_timer(0) % 3072); |
53a5c424 | 664 | |
ecb0ccd9 | 665 | #ifdef CONFIG_TFTP_PORT |
2cb53608 | 666 | ep = getenv("tftpdstp"); |
7bc325a1 | 667 | if (ep != NULL) |
20478cea | 668 | TftpRemotePort = simple_strtol(ep, NULL, 10); |
2cb53608 | 669 | ep = getenv("tftpsrcp"); |
7bc325a1 | 670 | if (ep != NULL) |
c718b143 | 671 | TftpOurPort = simple_strtol(ep, NULL, 10); |
ecb0ccd9 | 672 | #endif |
fbe4b5cb | 673 | TftpBlock = 0; |
fe8c2806 | 674 | |
73a8b27c WD |
675 | /* zero out server ether in case the server ip has changed */ |
676 | memset(NetServerEther, 0, 6); | |
53a5c424 DU |
677 | /* Revert TftpBlkSize to dflt */ |
678 | TftpBlkSize = TFTP_BLOCK_SIZE; | |
679 | #ifdef CONFIG_MCAST_TFTP | |
a93907c4 | 680 | mcast_cleanup(); |
53a5c424 | 681 | #endif |
4fccb818 RG |
682 | #ifdef CONFIG_TFTP_TSIZE |
683 | TftpTsize = 0; | |
684 | TftpNumchars = 0; | |
685 | #endif | |
73a8b27c | 686 | |
c718b143 | 687 | TftpSend(); |
fe8c2806 WD |
688 | } |
689 | ||
e59e3562 LC |
690 | #ifdef CONFIG_CMD_TFTPSRV |
691 | void | |
692 | TftpStartServer(void) | |
693 | { | |
694 | tftp_filename[0] = 0; | |
695 | ||
e59e3562 | 696 | printf("Using %s device\n", eth_get_name()); |
e59e3562 LC |
697 | printf("Listening for TFTP transfer on %pI4\n", &NetOurIP); |
698 | printf("Load address: 0x%lx\n", load_addr); | |
699 | ||
700 | puts("Loading: *\b"); | |
701 | ||
702 | TftpTimeoutCountMax = TIMEOUT_COUNT; | |
703 | TftpTimeoutCount = 0; | |
704 | TftpTimeoutMSecs = TIMEOUT; | |
705 | NetSetTimeout(TftpTimeoutMSecs, TftpTimeout); | |
706 | ||
707 | /* Revert TftpBlkSize to dflt */ | |
708 | TftpBlkSize = TFTP_BLOCK_SIZE; | |
709 | TftpBlock = 0; | |
710 | TftpOurPort = WELL_KNOWN_PORT; | |
711 | ||
712 | #ifdef CONFIG_TFTP_TSIZE | |
713 | TftpTsize = 0; | |
714 | TftpNumchars = 0; | |
715 | #endif | |
716 | ||
717 | TftpState = STATE_RECV_WRQ; | |
718 | NetSetHandler(TftpHandler); | |
719 | } | |
720 | #endif /* CONFIG_CMD_TFTPSRV */ | |
721 | ||
53a5c424 DU |
722 | #ifdef CONFIG_MCAST_TFTP |
723 | /* Credits: atftp project. | |
724 | */ | |
725 | ||
726 | /* pick up BcastAddr, Port, and whether I am [now] the master-client. * | |
727 | * Frame: | |
728 | * +-------+-----------+---+-------~~-------+---+ | |
729 | * | opc | multicast | 0 | addr, port, mc | 0 | | |
730 | * +-------+-----------+---+-------~~-------+---+ | |
731 | * The multicast addr/port becomes what I listen to, and if 'mc' is '1' then | |
732 | * I am the new master-client so must send ACKs to DataBlocks. If I am not | |
733 | * master-client, I'm a passive client, gathering what DataBlocks I may and | |
734 | * making note of which ones I got in my bitmask. | |
735 | * In theory, I never go from master->passive.. | |
736 | * .. this comes in with pkt already pointing just past opc | |
737 | */ | |
738 | static void parse_multicast_oack(char *pkt, int len) | |
739 | { | |
c718b143 LC |
740 | int i; |
741 | IPaddr_t addr; | |
742 | char *mc_adr, *port, *mc; | |
53a5c424 | 743 | |
c718b143 | 744 | mc_adr = port = mc = NULL; |
53a5c424 DU |
745 | /* march along looking for 'multicast\0', which has to start at least |
746 | * 14 bytes back from the end. | |
747 | */ | |
c718b143 LC |
748 | for (i = 0; i < len-14; i++) |
749 | if (strcmp(pkt+i, "multicast") == 0) | |
53a5c424 DU |
750 | break; |
751 | if (i >= (len-14)) /* non-Multicast OACK, ign. */ | |
752 | return; | |
85eb5caf | 753 | |
c718b143 | 754 | i += 10; /* strlen multicast */ |
53a5c424 | 755 | mc_adr = pkt+i; |
c718b143 | 756 | for (; i < len; i++) { |
53a5c424 DU |
757 | if (*(pkt+i) == ',') { |
758 | *(pkt+i) = '\0'; | |
759 | if (port) { | |
760 | mc = pkt+i+1; | |
761 | break; | |
762 | } else { | |
763 | port = pkt+i+1; | |
764 | } | |
765 | } | |
766 | } | |
6d2231e8 LC |
767 | if (!port || !mc_adr || !mc) |
768 | return; | |
53a5c424 | 769 | if (Multicast && MasterClient) { |
c718b143 | 770 | printf("I got a OACK as master Client, WRONG!\n"); |
53a5c424 DU |
771 | return; |
772 | } | |
773 | /* ..I now accept packets destined for this MCAST addr, port */ | |
774 | if (!Multicast) { | |
775 | if (Bitmap) { | |
c718b143 | 776 | printf("Internal failure! no mcast.\n"); |
53a5c424 | 777 | free(Bitmap); |
c718b143 LC |
778 | Bitmap = NULL; |
779 | ProhibitMcast = 1; | |
53a5c424 DU |
780 | return ; |
781 | } | |
782 | /* I malloc instead of pre-declare; so that if the file ends | |
85eb5caf WD |
783 | * up being too big for this bitmap I can retry |
784 | */ | |
2cb53608 LC |
785 | Bitmap = malloc(Mapsize); |
786 | if (!Bitmap) { | |
c718b143 LC |
787 | printf("No Bitmap, no multicast. Sorry.\n"); |
788 | ProhibitMcast = 1; | |
53a5c424 DU |
789 | return; |
790 | } | |
c718b143 | 791 | memset(Bitmap, 0, Mapsize); |
53a5c424 DU |
792 | PrevBitmapHole = 0; |
793 | Multicast = 1; | |
794 | } | |
795 | addr = string_to_ip(mc_adr); | |
796 | if (Mcast_addr != addr) { | |
797 | if (Mcast_addr) | |
798 | eth_mcast_join(Mcast_addr, 0); | |
2cb53608 LC |
799 | Mcast_addr = addr; |
800 | if (eth_mcast_join(Mcast_addr, 1)) { | |
c718b143 LC |
801 | printf("Fail to set mcast, revert to TFTP\n"); |
802 | ProhibitMcast = 1; | |
53a5c424 DU |
803 | mcast_cleanup(); |
804 | NetStartAgain(); | |
805 | } | |
806 | } | |
c718b143 LC |
807 | MasterClient = (unsigned char)simple_strtoul((char *)mc, NULL, 10); |
808 | Mcast_port = (unsigned short)simple_strtoul(port, NULL, 10); | |
809 | printf("Multicast: %s:%d [%d]\n", mc_adr, Mcast_port, MasterClient); | |
53a5c424 DU |
810 | return; |
811 | } | |
812 | ||
813 | #endif /* Multicast TFTP */ |