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wdenkcbd8a352004-02-24 02:00:03 +00001/*
2 * NFS support driver - based on etherboot and U-BOOT's tftp.c
3 *
4 * Masami Komiya <mkomiya@sonare.it> 2004
5 *
6 */
7
8/* NOTE: the NFS code is heavily inspired by the NetBSD netboot code (read:
9 * large portions are copied verbatim) as distributed in OSKit 0.97. A few
10 * changes were necessary to adapt the code to Etherboot and to fix several
11 * inconsistencies. Also the RPC message preparation is done "by hand" to
12 * avoid adding netsprintf() which I find hard to understand and use. */
13
14/* NOTE 2: Etherboot does not care about things beyond the kernel image, so
15 * it loads the kernel image off the boot server (ARP_SERVER) and does not
16 * access the client root disk (root-path in dhcpd.conf), which would use
17 * ARP_ROOTSERVER. The root disk is something the operating system we are
18 * about to load needs to use. This is different from the OSKit 0.97 logic. */
19
20/* NOTE 3: Symlink handling introduced by Anselm M Hoffmeister, 2003-July-14
21 * If a symlink is encountered, it is followed as far as possible (recursion
22 * possible, maximum 16 steps). There is no clearing of ".."'s inside the
23 * path, so please DON'T DO THAT. thx. */
24
25#include <common.h>
26#include <command.h>
27#include <net.h>
28#include <malloc.h>
29#include "nfs.h"
30#include "bootp.h"
31
32/*#define NFS_DEBUG*/
33
34#if ((CONFIG_COMMANDS & CFG_CMD_NET) && (CONFIG_COMMANDS & CFG_CMD_NFS))
35
36#define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */
wdenke94d2cd2004-06-30 22:59:18 +000037#define NFS_TIMEOUT 60
wdenkcbd8a352004-02-24 02:00:03 +000038
39static int fs_mounted = 0;
wdenkc3f9d492004-03-14 00:59:59 +000040static unsigned long rpc_id = 0;
wdenkcbd8a352004-02-24 02:00:03 +000041static int nfs_offset = -1;
42static int nfs_len;
43
44static char dirfh[NFS_FHSIZE]; /* file handle of directory */
45static char filefh[NFS_FHSIZE]; /* file handle of kernel image */
46
47static IPaddr_t NfsServerIP;
48static int NfsSrvMountPort;
49static int NfsSrvNfsPort;
50static int NfsOurPort;
51static int NfsTimeoutCount;
52static int NfsState;
53#define STATE_PRCLOOKUP_PROG_MOUNT_REQ 1
54#define STATE_PRCLOOKUP_PROG_NFS_REQ 2
55#define STATE_MOUNT_REQ 3
56#define STATE_UMOUNT_REQ 4
57#define STATE_LOOKUP_REQ 5
58#define STATE_READ_REQ 6
59#define STATE_READLINK_REQ 7
60
61static char default_filename[64];
62static char *nfs_filename;
63static char *nfs_path;
64static char nfs_path_buff[2048];
65
66static __inline__ void
67store_block (uchar * src, unsigned offset, unsigned len)
68{
wdenka084f7d2004-02-24 22:33:21 +000069 ulong newsize = offset + len;
wdenkcbd8a352004-02-24 02:00:03 +000070#ifdef CFG_DIRECT_FLASH_NFS
71 int i, rc = 0;
72
73 for (i=0; i<CFG_MAX_FLASH_BANKS; i++) {
74 /* start address in flash? */
75 if (load_addr + offset >= flash_info[i].start[0]) {
76 rc = 1;
77 break;
78 }
79 }
80
81 if (rc) { /* Flash is destination for this packet */
82 rc = flash_write ((uchar *)src, (ulong)(load_addr+offset), len);
83 if (rc) {
84 flash_perror (rc);
85 NetState = NETLOOP_FAIL;
86 return;
87 }
88 } else
89#endif /* CFG_DIRECT_FLASH_NFS */
wdenkcbd8a352004-02-24 02:00:03 +000090 {
91 (void)memcpy ((void *)(load_addr + offset), src, len);
92 }
wdenka084f7d2004-02-24 22:33:21 +000093
94 if (NetBootFileXferSize < (offset+len))
95 NetBootFileXferSize = newsize;
wdenkcbd8a352004-02-24 02:00:03 +000096}
97
98static char*
99basename (char *path)
100{
101 char *fname;
102
103 fname = path + strlen(path) - 1;
104 while (fname >= path) {
105 if (*fname == '/') {
106 fname++;
107 break;
108 }
109 fname--;
110 }
111 return fname;
112}
113
114static char*
115dirname (char *path)
116{
117 char *fname;
118
119 fname = basename (path);
120 --fname;
121 *fname = '\0';
122 return path;
123}
124
125/**************************************************************************
wdenkcbd8a352004-02-24 02:00:03 +0000126RPC_ADD_CREDENTIALS - Add RPC authentication/verifier entries
127**************************************************************************/
128static long *rpc_add_credentials (long *p)
129{
130 int hl;
131 int hostnamelen;
132 char hostname[256];
133
134 strcpy (hostname, "");
135 hostnamelen=strlen (hostname);
136
137 /* Here's the executive summary on authentication requirements of the
138 * various NFS server implementations: Linux accepts both AUTH_NONE
139 * and AUTH_UNIX authentication (also accepts an empty hostname field
140 * in the AUTH_UNIX scheme). *BSD refuses AUTH_NONE, but accepts
141 * AUTH_UNIX (also accepts an empty hostname field in the AUTH_UNIX
142 * scheme). To be safe, use AUTH_UNIX and pass the hostname if we have
143 * it (if the BOOTP/DHCP reply didn't give one, just use an empty
144 * hostname). */
145
146 hl = (hostnamelen + 3) & ~3;
147
148 /* Provide an AUTH_UNIX credential. */
149 *p++ = htonl(1); /* AUTH_UNIX */
150 *p++ = htonl(hl+20); /* auth length */
151 *p++ = htonl(0); /* stamp */
152 *p++ = htonl(hostnamelen); /* hostname string */
153 if (hostnamelen & 3) {
154 *(p + hostnamelen / 4) = 0; /* add zero padding */
155 }
156 memcpy (p, hostname, hostnamelen);
157 p += hl / 4;
158 *p++ = 0; /* uid */
159 *p++ = 0; /* gid */
160 *p++ = 0; /* auxiliary gid list */
161
162 /* Provide an AUTH_NONE verifier. */
163 *p++ = 0; /* AUTH_NONE */
164 *p++ = 0; /* auth length */
165
166 return p;
167}
168
169/**************************************************************************
170RPC_LOOKUP - Lookup RPC Port numbers
171**************************************************************************/
172static void
173rpc_req (int rpc_prog, int rpc_proc, uint32_t *data, int datalen)
174{
175 struct rpc_t pkt;
176 unsigned long id;
177 uint32_t *p;
178 int pktlen;
179 int sport;
180
wdenkc3f9d492004-03-14 00:59:59 +0000181 id = ++rpc_id;
wdenkcbd8a352004-02-24 02:00:03 +0000182 pkt.u.call.id = htonl(id);
183 pkt.u.call.type = htonl(MSG_CALL);
184 pkt.u.call.rpcvers = htonl(2); /* use RPC version 2 */
185 pkt.u.call.prog = htonl(rpc_prog);
186 pkt.u.call.vers = htonl(2); /* portmapper is version 2 */
187 pkt.u.call.proc = htonl(rpc_proc);
188 p = (uint32_t *)&(pkt.u.call.data);
189
190 if (datalen)
191 memcpy ((char *)p, (char *)data, datalen*sizeof(uint32_t));
192
193 pktlen = (char *)p + datalen*sizeof(uint32_t) - (char *)&pkt;
194
wdenka3d991b2004-04-15 21:48:45 +0000195 memcpy ((char *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE, (char *)&pkt, pktlen);
wdenkcbd8a352004-02-24 02:00:03 +0000196
197 if (rpc_prog == PROG_PORTMAP)
198 sport = SUNRPC_PORT;
199 else if (rpc_prog == PROG_MOUNT)
200 sport = NfsSrvMountPort;
201 else
202 sport = NfsSrvNfsPort;
203
204 NetSendUDPPacket (NetServerEther, NfsServerIP, sport, NfsOurPort, pktlen);
205}
206
207/**************************************************************************
208RPC_LOOKUP - Lookup RPC Port numbers
209**************************************************************************/
210static void
211rpc_lookup_req (int prog, int ver)
212{
213 uint32_t data[16];
214
215 data[0] = 0; data[1] = 0; /* auth credential */
216 data[2] = 0; data[3] = 0; /* auth verifier */
217 data[4] = htonl(prog);
218 data[5] = htonl(ver);
219 data[6] = htonl(17); /* IP_UDP */
220 data[7] = 0;
221
222 rpc_req (PROG_PORTMAP, PORTMAP_GETPORT, data, 8);
223}
224
225/**************************************************************************
226NFS_MOUNT - Mount an NFS Filesystem
227**************************************************************************/
228static void
229nfs_mount_req (char *path)
230{
231 uint32_t data[1024];
232 uint32_t *p;
233 int len;
234 int pathlen;
235
236 pathlen = strlen (path);
237
238 p = &(data[0]);
239 p = (uint32_t *)rpc_add_credentials((long *)p);
240
241 *p++ = htonl(pathlen);
242 if (pathlen & 3) *(p + pathlen / 4) = 0;
243 memcpy (p, path, pathlen);
244 p += (pathlen + 3) / 4;
245
246 len = (uint32_t *)p - (uint32_t *)&(data[0]);
247
248 rpc_req (PROG_MOUNT, MOUNT_ADDENTRY, data, len);
249}
250
251/**************************************************************************
252NFS_UMOUNTALL - Unmount all our NFS Filesystems on the Server
253**************************************************************************/
254static void
255nfs_umountall_req (void)
256{
257 uint32_t data[1024];
258 uint32_t *p;
259 int len;
260
261 if ((NfsSrvMountPort == -1) || (!fs_mounted)) {
262 /* Nothing mounted, nothing to umount */
263 return;
264 }
265
266 p = &(data[0]);
267 p = (uint32_t *)rpc_add_credentials ((long *)p);
268
269 len = (uint32_t *)p - (uint32_t *)&(data[0]);
270
271 rpc_req (PROG_MOUNT, MOUNT_UMOUNTALL, data, len);
272}
273
274/***************************************************************************
275 * NFS_READLINK (AH 2003-07-14)
276 * This procedure is called when read of the first block fails -
277 * this probably happens when it's a directory or a symlink
278 * In case of successful readlink(), the dirname is manipulated,
279 * so that inside the nfs() function a recursion can be done.
280 **************************************************************************/
281static void
282nfs_readlink_req (void)
283{
284 uint32_t data[1024];
285 uint32_t *p;
286 int len;
287
288 p = &(data[0]);
289 p = (uint32_t *)rpc_add_credentials ((long *)p);
290
291 memcpy (p, filefh, NFS_FHSIZE);
292 p += (NFS_FHSIZE / 4);
293
294 len = (uint32_t *)p - (uint32_t *)&(data[0]);
295
296 rpc_req (PROG_NFS, NFS_READLINK, data, len);
297}
298
299/**************************************************************************
300NFS_LOOKUP - Lookup Pathname
301**************************************************************************/
302static void
303nfs_lookup_req (char *fname)
304{
305 uint32_t data[1024];
306 uint32_t *p;
307 int len;
308 int fnamelen;
309
310 fnamelen = strlen (fname);
311
312 p = &(data[0]);
313 p = (uint32_t *)rpc_add_credentials ((long *)p);
314
315 memcpy (p, dirfh, NFS_FHSIZE);
316 p += (NFS_FHSIZE / 4);
317 *p++ = htonl(fnamelen);
318 if (fnamelen & 3) *(p + fnamelen / 4) = 0;
319 memcpy (p, fname, fnamelen);
320 p += (fnamelen + 3) / 4;
321
322 len = (uint32_t *)p - (uint32_t *)&(data[0]);
323
324 rpc_req (PROG_NFS, NFS_LOOKUP, data, len);
325}
326
327/**************************************************************************
328NFS_READ - Read File on NFS Server
329**************************************************************************/
330static void
331nfs_read_req (int offset, int readlen)
332{
333 uint32_t data[1024];
334 uint32_t *p;
335 int len;
336
337 p = &(data[0]);
338 p = (uint32_t *)rpc_add_credentials ((long *)p);
339
340 memcpy (p, filefh, NFS_FHSIZE);
341 p += (NFS_FHSIZE / 4);
342 *p++ = htonl(offset);
343 *p++ = htonl(readlen);
344 *p++ = 0;
345
346 len = (uint32_t *)p - (uint32_t *)&(data[0]);
347
348 rpc_req (PROG_NFS, NFS_READ, data, len);
349}
350
351/**************************************************************************
352RPC request dispatcher
353**************************************************************************/
354
355static void
356NfsSend (void)
357{
358#ifdef NFS_DEBUG
359 printf ("%s\n", __FUNCTION__);
360#endif
361
362 switch (NfsState) {
363 case STATE_PRCLOOKUP_PROG_MOUNT_REQ:
364 rpc_lookup_req (PROG_MOUNT, 1);
365 break;
366 case STATE_PRCLOOKUP_PROG_NFS_REQ:
367 rpc_lookup_req (PROG_NFS, 2);
368 break;
369 case STATE_MOUNT_REQ:
370 nfs_mount_req (nfs_path);
371 break;
372 case STATE_UMOUNT_REQ:
373 nfs_umountall_req ();
374 break;
375 case STATE_LOOKUP_REQ:
376 nfs_lookup_req (nfs_filename);
377 break;
378 case STATE_READ_REQ:
379 nfs_read_req (nfs_offset, nfs_len);
380 break;
381 case STATE_READLINK_REQ:
382 nfs_readlink_req ();
383 break;
384 }
385}
386
387/**************************************************************************
388Handlers for the reply from server
389**************************************************************************/
390
391static int
392rpc_lookup_reply (int prog, uchar *pkt, unsigned len)
393{
394 struct rpc_t rpc_pkt;
395
396 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
397
398#ifdef NFS_DEBUG
399 printf ("%s\n", __FUNCTION__);
400#endif
401
wdenkc3f9d492004-03-14 00:59:59 +0000402 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
403 return -1;
404
wdenkcbd8a352004-02-24 02:00:03 +0000405 if (rpc_pkt.u.reply.rstatus ||
406 rpc_pkt.u.reply.verifier ||
407 rpc_pkt.u.reply.astatus ||
408 rpc_pkt.u.reply.astatus) {
wdenkc3f9d492004-03-14 00:59:59 +0000409 return -1;
wdenkcbd8a352004-02-24 02:00:03 +0000410 }
411
412 switch (prog) {
413 case PROG_MOUNT:
414 NfsSrvMountPort = ntohl(rpc_pkt.u.reply.data[0]);
415 break;
416 case PROG_NFS:
417 NfsSrvNfsPort = ntohl(rpc_pkt.u.reply.data[0]);
418 break;
419 }
420
421 return 0;
422}
423
424static int
425nfs_mount_reply (uchar *pkt, unsigned len)
426{
427 struct rpc_t rpc_pkt;
428
429#ifdef NFS_DEBUG
430 printf ("%s\n", __FUNCTION__);
431#endif
432
433 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
434
wdenkc3f9d492004-03-14 00:59:59 +0000435 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
436 return -1;
437
wdenkcbd8a352004-02-24 02:00:03 +0000438 if (rpc_pkt.u.reply.rstatus ||
439 rpc_pkt.u.reply.verifier ||
440 rpc_pkt.u.reply.astatus ||
441 rpc_pkt.u.reply.data[0]) {
442 return -1;
443 }
444
445 fs_mounted = 1;
446 memcpy (dirfh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
447
448 return 0;
449}
450
451static int
452nfs_umountall_reply (uchar *pkt, unsigned len)
453{
454 struct rpc_t rpc_pkt;
455
456#ifdef NFS_DEBUG
457 printf ("%s\n", __FUNCTION__);
458#endif
459
460 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
461
wdenkc3f9d492004-03-14 00:59:59 +0000462 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
463 return -1;
464
wdenkcbd8a352004-02-24 02:00:03 +0000465 if (rpc_pkt.u.reply.rstatus ||
466 rpc_pkt.u.reply.verifier ||
467 rpc_pkt.u.reply.astatus) {
468 return -1;
469 }
470
471 fs_mounted = 0;
472 memset (dirfh, 0, sizeof(dirfh));
473
474 return 0;
475}
476
477static int
478nfs_lookup_reply (uchar *pkt, unsigned len)
479{
480 struct rpc_t rpc_pkt;
481
482#ifdef NFS_DEBUG
483 printf ("%s\n", __FUNCTION__);
484#endif
485
486 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
487
wdenkc3f9d492004-03-14 00:59:59 +0000488 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
489 return -1;
490
wdenkcbd8a352004-02-24 02:00:03 +0000491 if (rpc_pkt.u.reply.rstatus ||
492 rpc_pkt.u.reply.verifier ||
493 rpc_pkt.u.reply.astatus ||
494 rpc_pkt.u.reply.data[0]) {
495 return -1;
496 }
497
498 memcpy (filefh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
499
500 return 0;
501}
502
503static int
504nfs_readlink_reply (uchar *pkt, unsigned len)
505{
506 struct rpc_t rpc_pkt;
507 int rlen;
508
509#ifdef NFS_DEBUG
510 printf ("%s\n", __FUNCTION__);
511#endif
512
513 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
514
wdenkc3f9d492004-03-14 00:59:59 +0000515 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
516 return -1;
517
wdenkcbd8a352004-02-24 02:00:03 +0000518 if (rpc_pkt.u.reply.rstatus ||
519 rpc_pkt.u.reply.verifier ||
520 rpc_pkt.u.reply.astatus ||
521 rpc_pkt.u.reply.data[0]) {
522 return -1;
523 }
524
525 rlen = ntohl (rpc_pkt.u.reply.data[1]); /* new path length */
526
527 if (*((char *)&(rpc_pkt.u.reply.data[2])) != '/') {
528 int pathlen;
529 strcat (nfs_path, "/");
530 pathlen = strlen(nfs_path);
531 memcpy (nfs_path+pathlen, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen);
532 nfs_path[pathlen+rlen+1] = 0;
533 } else {
534 memcpy (nfs_path, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen);
535 nfs_path[rlen] = 0;
536 }
537 return 0;
538}
539
540static int
541nfs_read_reply (uchar *pkt, unsigned len)
542{
543 struct rpc_t rpc_pkt;
544 int rlen;
545
546#ifdef NFS_DEBUG_nop
547 printf ("%s\n", __FUNCTION__);
548#endif
549
wdenk11dadd52004-02-27 00:07:27 +0000550 memcpy ((uchar *)&rpc_pkt, pkt, sizeof(rpc_pkt.u.reply));
wdenkcbd8a352004-02-24 02:00:03 +0000551
wdenkc3f9d492004-03-14 00:59:59 +0000552 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
553 return -1;
554
wdenkcbd8a352004-02-24 02:00:03 +0000555 if (rpc_pkt.u.reply.rstatus ||
556 rpc_pkt.u.reply.verifier ||
557 rpc_pkt.u.reply.astatus ||
558 rpc_pkt.u.reply.data[0]) {
559 if (rpc_pkt.u.reply.rstatus) {
560 return -9999;
561 }
562 if (rpc_pkt.u.reply.astatus) {
563 return -9999;
564 }
565 return -ntohl(rpc_pkt.u.reply.data[0]);;
566 }
567
568 if ((nfs_offset!=0) && !((nfs_offset) % (NFS_READ_SIZE/2*10*HASHES_PER_LINE))) {
569 puts ("\n\t ");
570 }
571 if (!(nfs_offset % ((NFS_READ_SIZE/2)*10))) {
572 putc ('#');
573 }
574
575 rlen = ntohl(rpc_pkt.u.reply.data[18]);
wdenk11dadd52004-02-27 00:07:27 +0000576 store_block ((uchar *)pkt+sizeof(rpc_pkt.u.reply), nfs_offset, rlen);
wdenkcbd8a352004-02-24 02:00:03 +0000577
578 return rlen;
579}
580
581/**************************************************************************
582Interfaces of U-BOOT
583**************************************************************************/
584
585static void
wdenka5725fa2004-09-28 21:51:42 +0000586NfsTimeout (void)
587{
588 puts ("Timeout\n");
589 NetState = NETLOOP_FAIL;
590 return;
591}
592
593static void
wdenkcbd8a352004-02-24 02:00:03 +0000594NfsHandler (uchar *pkt, unsigned dest, unsigned src, unsigned len)
595{
596 int rlen;
597
598#ifdef NFS_DEBUG
599 printf ("%s\n", __FUNCTION__);
600#endif
601
602 if (dest != NfsOurPort) return;
603
604 switch (NfsState) {
605 case STATE_PRCLOOKUP_PROG_MOUNT_REQ:
606 rpc_lookup_reply (PROG_MOUNT, pkt, len);
607 NfsState = STATE_PRCLOOKUP_PROG_NFS_REQ;
608 NfsSend ();
609 break;
610
611 case STATE_PRCLOOKUP_PROG_NFS_REQ:
612 rpc_lookup_reply (PROG_NFS, pkt, len);
613 NfsState = STATE_MOUNT_REQ;
614 NfsSend ();
615 break;
616
617 case STATE_MOUNT_REQ:
618 if (nfs_mount_reply(pkt, len)) {
619 puts ("*** ERROR: Cannot mount\n");
620 /* just to be sure... */
621 NfsState = STATE_UMOUNT_REQ;
622 NfsSend ();
623 } else {
624 NfsState = STATE_LOOKUP_REQ;
625 NfsSend ();
626 }
627 break;
628
629 case STATE_UMOUNT_REQ:
630 if (nfs_umountall_reply(pkt, len)) {
631 puts ("*** ERROR: Cannot umount\n");
632 NetState = NETLOOP_FAIL;
633 } else {
wdenka084f7d2004-02-24 22:33:21 +0000634 puts ("\ndone\n");
wdenkcbd8a352004-02-24 02:00:03 +0000635 NetState = NETLOOP_SUCCESS;
636 }
637 break;
638
639 case STATE_LOOKUP_REQ:
640 if (nfs_lookup_reply(pkt, len)) {
641 puts ("*** ERROR: File lookup fail\n");
642 NfsState = STATE_UMOUNT_REQ;
643 NfsSend ();
644 } else {
645 NfsState = STATE_READ_REQ;
646 nfs_offset = 0;
647 nfs_len = NFS_READ_SIZE;
648 NfsSend ();
649 }
650 break;
651
652 case STATE_READLINK_REQ:
653 if (nfs_readlink_reply(pkt, len)) {
654 puts ("*** ERROR: Symlink fail\n");
655 NfsState = STATE_UMOUNT_REQ;
656 NfsSend ();
657 } else {
658#ifdef NFS_DEBUG
659 printf ("Symlink --> %s\n", nfs_path);
660#endif
661 nfs_filename = basename (nfs_path);
662 nfs_path = dirname (nfs_path);
663
664 NfsState = STATE_MOUNT_REQ;
665 NfsSend ();
666 }
667 break;
668
669 case STATE_READ_REQ:
670 rlen = nfs_read_reply (pkt, len);
wdenka5725fa2004-09-28 21:51:42 +0000671 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout);
wdenkcbd8a352004-02-24 02:00:03 +0000672 if (rlen > 0) {
673 nfs_offset += rlen;
674 NfsSend ();
675 }
676 else if ((rlen == -NFSERR_ISDIR)||(rlen == -NFSERR_INVAL)) {
677 /* symbolic link */
678 NfsState = STATE_READLINK_REQ;
679 NfsSend ();
680 } else {
wdenkcbd8a352004-02-24 02:00:03 +0000681 NfsState = STATE_UMOUNT_REQ;
682 NfsSend ();
683 }
684 break;
685 }
686}
687
wdenkcbd8a352004-02-24 02:00:03 +0000688
689void
690NfsStart (void)
691{
692#ifdef NFS_DEBUG
693 printf ("%s\n", __FUNCTION__);
694#endif
695
696 NfsServerIP = NetServerIP;
697 nfs_path = (char *)nfs_path_buff;
698
699 if (nfs_path == NULL) {
700 NetState = NETLOOP_FAIL;
701 puts ("*** ERROR: Fail allocate memory\n");
702 return;
703 }
704
705 if (BootFile[0] == '\0') {
706 IPaddr_t OurIP = ntohl (NetOurIP);
707
708 sprintf (default_filename, "/nfsroot/%02lX%02lX%02lX%02lX.img",
709 OurIP & 0xFF,
710 (OurIP >> 8) & 0xFF,
711 (OurIP >> 16) & 0xFF,
712 (OurIP >> 24) & 0xFF );
713 strcpy (nfs_path, default_filename);
714
715 printf ("*** Warning: no boot file name; using '%s'\n",
716 nfs_path);
717 } else {
718 char *p=BootFile;
719
720 p = strchr (p, ':');
721
722 if (p != NULL) {
723 NfsServerIP = string_to_ip (BootFile);
724 ++p;
725 strcpy (nfs_path, p);
726 } else {
727 strcpy (nfs_path, BootFile);
728 }
729 }
730
731 nfs_filename = basename (nfs_path);
732 nfs_path = dirname (nfs_path);
733
734#if defined(CONFIG_NET_MULTI)
735 printf ("Using %s device\n", eth_get_name());
736#endif
737
738 puts ("File transfer via NFS from server "); print_IPaddr (NfsServerIP);
739 puts ("; our IP address is "); print_IPaddr (NetOurIP);
740
741 /* Check if we need to send across this subnet */
742 if (NetOurGatewayIP && NetOurSubnetMask) {
743 IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;
744 IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask;
745
746 if (OurNet != ServerNet) {
747 puts ("; sending through gateway ");
748 print_IPaddr (NetOurGatewayIP) ;
749 }
750 }
wdenk4b9206e2004-03-23 22:14:11 +0000751 printf ("\nFilename '%s/%s'.", nfs_path, nfs_filename);
wdenkcbd8a352004-02-24 02:00:03 +0000752
753 if (NetBootFileSize) {
754 printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9);
755 print_size (NetBootFileSize<<9, "");
756 }
wdenk4b9206e2004-03-23 22:14:11 +0000757 printf ("\nLoad address: 0x%lx\n"
758 "Loading: *\b", load_addr);
wdenkcbd8a352004-02-24 02:00:03 +0000759
760 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout);
761 NetSetHandler (NfsHandler);
762
wdenkcbd8a352004-02-24 02:00:03 +0000763 NfsTimeoutCount = 0;
764 NfsState = STATE_PRCLOOKUP_PROG_MOUNT_REQ;
765
766 /*NfsOurPort = 4096 + (get_ticks() % 3072);*/
767 /*FIX ME !!!*/
768 NfsOurPort = 1000;
769
770 /* zero out server ether in case the server ip has changed */
771 memset (NetServerEther, 0, 6);
772
773 NfsSend ();
774}
775
776#endif /* CONFIG_COMMANDS & CFG_CMD_NFS */