1 /* 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 */ 37 #define NFS_TIMEOUT 10 38 39 static int fs_mounted = 0; 40 static unsigned long rpc_id = 0; 41 static int nfs_offset = -1; 42 static int nfs_len; 43 44 static char dirfh[NFS_FHSIZE]; /* file handle of directory */ 45 static char filefh[NFS_FHSIZE]; /* file handle of kernel image */ 46 47 static IPaddr_t NfsServerIP; 48 static int NfsSrvMountPort; 49 static int NfsSrvNfsPort; 50 static int NfsOurPort; 51 static int NfsTimeoutCount; 52 static 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 61 static char default_filename[64]; 62 static char *nfs_filename; 63 static char *nfs_path; 64 static char nfs_path_buff[2048]; 65 66 static __inline__ void 67 store_block (uchar * src, unsigned offset, unsigned len) 68 { 69 ulong newsize = offset + len; 70 #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 */ 90 { 91 (void)memcpy ((void *)(load_addr + offset), src, len); 92 } 93 94 if (NetBootFileXferSize < (offset+len)) 95 NetBootFileXferSize = newsize; 96 } 97 98 static char* 99 basename (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 } 113 114 static char* 115 dirname (char *path) 116 { 117 char *fname; 118 119 fname = basename (path); 120 --fname; 121 *fname = '\0'; 122 return path; 123 } 124 125 /************************************************************************** 126 RPC_ADD_CREDENTIALS - Add RPC authentication/verifier entries 127 **************************************************************************/ 128 static 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 /************************************************************************** 170 RPC_LOOKUP - Lookup RPC Port numbers 171 **************************************************************************/ 172 static void 173 rpc_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; 180 181 id = ++rpc_id; 182 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; 194 195 memcpy ((char *)NetTxPacket+ETHER_HDR_SIZE+IP_HDR_SIZE, (char *)&pkt, pktlen); 196 197 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 /************************************************************************** 208 RPC_LOOKUP - Lookup RPC Port numbers 209 **************************************************************************/ 210 static void 211 rpc_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 /************************************************************************** 226 NFS_MOUNT - Mount an NFS Filesystem 227 **************************************************************************/ 228 static void 229 nfs_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 /************************************************************************** 252 NFS_UMOUNTALL - Unmount all our NFS Filesystems on the Server 253 **************************************************************************/ 254 static void 255 nfs_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 **************************************************************************/ 281 static void 282 nfs_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 /************************************************************************** 300 NFS_LOOKUP - Lookup Pathname 301 **************************************************************************/ 302 static void 303 nfs_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 /************************************************************************** 328 NFS_READ - Read File on NFS Server 329 **************************************************************************/ 330 static void 331 nfs_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 /************************************************************************** 352 RPC request dispatcher 353 **************************************************************************/ 354 355 static void 356 NfsSend (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 /************************************************************************** 388 Handlers for the reply from server 389 **************************************************************************/ 390 391 static int 392 rpc_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 401 402 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 403 return -1; 404 405 if (rpc_pkt.u.reply.rstatus || 406 rpc_pkt.u.reply.verifier || 407 rpc_pkt.u.reply.astatus || 408 rpc_pkt.u.reply.astatus) { 409 return -1; 410 } 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 } 423 424 static int 425 nfs_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); 434 435 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 436 return -1; 437 438 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 } 450 451 static int 452 nfs_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); 461 462 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 463 return -1; 464 465 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 } 476 477 static int 478 nfs_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); 487 488 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 489 return -1; 490 491 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 } 502 503 static int 504 nfs_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); 514 515 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 516 return -1; 517 518 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 } 539 540 static int 541 nfs_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 549 550 memcpy ((uchar *)&rpc_pkt, pkt, sizeof(rpc_pkt.u.reply)); 551 552 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 553 return -1; 554 555 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]); 576 store_block ((uchar *)pkt+sizeof(rpc_pkt.u.reply), nfs_offset, rlen); 577 578 return rlen; 579 } 580 581 /************************************************************************** 582 Interfaces of U-BOOT 583 **************************************************************************/ 584 585 static void 586 NfsHandler (uchar *pkt, unsigned dest, unsigned src, unsigned len) 587 { 588 int rlen; 589 590 #ifdef NFS_DEBUG 591 printf ("%s\n", __FUNCTION__); 592 #endif 593 594 if (dest != NfsOurPort) return; 595 596 switch (NfsState) { 597 case STATE_PRCLOOKUP_PROG_MOUNT_REQ: 598 rpc_lookup_reply (PROG_MOUNT, pkt, len); 599 NfsState = STATE_PRCLOOKUP_PROG_NFS_REQ; 600 NfsSend (); 601 break; 602 603 case STATE_PRCLOOKUP_PROG_NFS_REQ: 604 rpc_lookup_reply (PROG_NFS, pkt, len); 605 NfsState = STATE_MOUNT_REQ; 606 NfsSend (); 607 break; 608 609 case STATE_MOUNT_REQ: 610 if (nfs_mount_reply(pkt, len)) { 611 puts ("*** ERROR: Cannot mount\n"); 612 /* just to be sure... */ 613 NfsState = STATE_UMOUNT_REQ; 614 NfsSend (); 615 } else { 616 NfsState = STATE_LOOKUP_REQ; 617 NfsSend (); 618 } 619 break; 620 621 case STATE_UMOUNT_REQ: 622 if (nfs_umountall_reply(pkt, len)) { 623 puts ("*** ERROR: Cannot umount\n"); 624 NetState = NETLOOP_FAIL; 625 } else { 626 puts ("\ndone\n"); 627 NetState = NETLOOP_SUCCESS; 628 } 629 break; 630 631 case STATE_LOOKUP_REQ: 632 if (nfs_lookup_reply(pkt, len)) { 633 puts ("*** ERROR: File lookup fail\n"); 634 NfsState = STATE_UMOUNT_REQ; 635 NfsSend (); 636 } else { 637 NfsState = STATE_READ_REQ; 638 nfs_offset = 0; 639 nfs_len = NFS_READ_SIZE; 640 NfsSend (); 641 } 642 break; 643 644 case STATE_READLINK_REQ: 645 if (nfs_readlink_reply(pkt, len)) { 646 puts ("*** ERROR: Symlink fail\n"); 647 NfsState = STATE_UMOUNT_REQ; 648 NfsSend (); 649 } else { 650 #ifdef NFS_DEBUG 651 printf ("Symlink --> %s\n", nfs_path); 652 #endif 653 nfs_filename = basename (nfs_path); 654 nfs_path = dirname (nfs_path); 655 656 NfsState = STATE_MOUNT_REQ; 657 NfsSend (); 658 } 659 break; 660 661 case STATE_READ_REQ: 662 rlen = nfs_read_reply (pkt, len); 663 if (rlen > 0) { 664 nfs_offset += rlen; 665 NfsSend (); 666 } 667 else if ((rlen == -NFSERR_ISDIR)||(rlen == -NFSERR_INVAL)) { 668 /* symbolic link */ 669 NfsState = STATE_READLINK_REQ; 670 NfsSend (); 671 } else { 672 NfsState = STATE_UMOUNT_REQ; 673 NfsSend (); 674 } 675 break; 676 } 677 } 678 679 static void 680 NfsTimeout (void) 681 { 682 puts ("Timeout\n"); 683 NetState = NETLOOP_FAIL; 684 return; 685 } 686 687 void 688 NfsStart (void) 689 { 690 #ifdef NFS_DEBUG 691 printf ("%s\n", __FUNCTION__); 692 #endif 693 694 NfsServerIP = NetServerIP; 695 nfs_path = (char *)nfs_path_buff; 696 697 if (nfs_path == NULL) { 698 NetState = NETLOOP_FAIL; 699 puts ("*** ERROR: Fail allocate memory\n"); 700 return; 701 } 702 703 if (BootFile[0] == '\0') { 704 IPaddr_t OurIP = ntohl (NetOurIP); 705 706 sprintf (default_filename, "/nfsroot/%02lX%02lX%02lX%02lX.img", 707 OurIP & 0xFF, 708 (OurIP >> 8) & 0xFF, 709 (OurIP >> 16) & 0xFF, 710 (OurIP >> 24) & 0xFF ); 711 strcpy (nfs_path, default_filename); 712 713 printf ("*** Warning: no boot file name; using '%s'\n", 714 nfs_path); 715 } else { 716 char *p=BootFile; 717 718 p = strchr (p, ':'); 719 720 if (p != NULL) { 721 NfsServerIP = string_to_ip (BootFile); 722 ++p; 723 strcpy (nfs_path, p); 724 } else { 725 strcpy (nfs_path, BootFile); 726 } 727 } 728 729 nfs_filename = basename (nfs_path); 730 nfs_path = dirname (nfs_path); 731 732 #if defined(CONFIG_NET_MULTI) 733 printf ("Using %s device\n", eth_get_name()); 734 #endif 735 736 puts ("File transfer via NFS from server "); print_IPaddr (NfsServerIP); 737 puts ("; our IP address is "); print_IPaddr (NetOurIP); 738 739 /* Check if we need to send across this subnet */ 740 if (NetOurGatewayIP && NetOurSubnetMask) { 741 IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; 742 IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask; 743 744 if (OurNet != ServerNet) { 745 puts ("; sending through gateway "); 746 print_IPaddr (NetOurGatewayIP) ; 747 } 748 } 749 printf ("\nFilename '%s/%s'.", nfs_path, nfs_filename); 750 751 if (NetBootFileSize) { 752 printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9); 753 print_size (NetBootFileSize<<9, ""); 754 } 755 printf ("\nLoad address: 0x%lx\n" 756 "Loading: *\b", load_addr); 757 758 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout); 759 NetSetHandler (NfsHandler); 760 761 NfsTimeoutCount = 0; 762 NfsState = STATE_PRCLOOKUP_PROG_MOUNT_REQ; 763 764 /*NfsOurPort = 4096 + (get_ticks() % 3072);*/ 765 /*FIX ME !!!*/ 766 NfsOurPort = 1000; 767 768 /* zero out server ether in case the server ip has changed */ 769 memset (NetServerEther, 0, 6); 770 771 NfsSend (); 772 } 773 774 #endif /* CONFIG_COMMANDS & CFG_CMD_NFS */ 775