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 defined(CONFIG_CMD_NET) && defined(CONFIG_CMD_NFS) 35 36 #define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */ 37 #define NFS_TIMEOUT 60UL 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 int NfsDownloadState; 48 static IPaddr_t NfsServerIP; 49 static int NfsSrvMountPort; 50 static int NfsSrvNfsPort; 51 static int NfsOurPort; 52 static int NfsTimeoutCount; 53 static int NfsState; 54 #define STATE_PRCLOOKUP_PROG_MOUNT_REQ 1 55 #define STATE_PRCLOOKUP_PROG_NFS_REQ 2 56 #define STATE_MOUNT_REQ 3 57 #define STATE_UMOUNT_REQ 4 58 #define STATE_LOOKUP_REQ 5 59 #define STATE_READ_REQ 6 60 #define STATE_READLINK_REQ 7 61 62 static char default_filename[64]; 63 static char *nfs_filename; 64 static char *nfs_path; 65 static char nfs_path_buff[2048]; 66 67 static __inline__ int 68 store_block (uchar * src, unsigned offset, unsigned len) 69 { 70 ulong newsize = offset + len; 71 #ifdef CFG_DIRECT_FLASH_NFS 72 int i, rc = 0; 73 74 for (i=0; i<CFG_MAX_FLASH_BANKS; i++) { 75 /* start address in flash? */ 76 if (load_addr + offset >= flash_info[i].start[0]) { 77 rc = 1; 78 break; 79 } 80 } 81 82 if (rc) { /* Flash is destination for this packet */ 83 rc = flash_write ((uchar *)src, (ulong)(load_addr+offset), len); 84 if (rc) { 85 flash_perror (rc); 86 return -1; 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 return 0; 97 } 98 99 static char* 100 basename (char *path) 101 { 102 char *fname; 103 104 fname = path + strlen(path) - 1; 105 while (fname >= path) { 106 if (*fname == '/') { 107 fname++; 108 break; 109 } 110 fname--; 111 } 112 return fname; 113 } 114 115 static char* 116 dirname (char *path) 117 { 118 char *fname; 119 120 fname = basename (path); 121 --fname; 122 *fname = '\0'; 123 return path; 124 } 125 126 /************************************************************************** 127 RPC_ADD_CREDENTIALS - Add RPC authentication/verifier entries 128 **************************************************************************/ 129 static long *rpc_add_credentials (long *p) 130 { 131 int hl; 132 int hostnamelen; 133 char hostname[256]; 134 135 strcpy (hostname, ""); 136 hostnamelen=strlen (hostname); 137 138 /* Here's the executive summary on authentication requirements of the 139 * various NFS server implementations: Linux accepts both AUTH_NONE 140 * and AUTH_UNIX authentication (also accepts an empty hostname field 141 * in the AUTH_UNIX scheme). *BSD refuses AUTH_NONE, but accepts 142 * AUTH_UNIX (also accepts an empty hostname field in the AUTH_UNIX 143 * scheme). To be safe, use AUTH_UNIX and pass the hostname if we have 144 * it (if the BOOTP/DHCP reply didn't give one, just use an empty 145 * hostname). */ 146 147 hl = (hostnamelen + 3) & ~3; 148 149 /* Provide an AUTH_UNIX credential. */ 150 *p++ = htonl(1); /* AUTH_UNIX */ 151 *p++ = htonl(hl+20); /* auth length */ 152 *p++ = htonl(0); /* stamp */ 153 *p++ = htonl(hostnamelen); /* hostname string */ 154 if (hostnamelen & 3) { 155 *(p + hostnamelen / 4) = 0; /* add zero padding */ 156 } 157 memcpy (p, hostname, hostnamelen); 158 p += hl / 4; 159 *p++ = 0; /* uid */ 160 *p++ = 0; /* gid */ 161 *p++ = 0; /* auxiliary gid list */ 162 163 /* Provide an AUTH_NONE verifier. */ 164 *p++ = 0; /* AUTH_NONE */ 165 *p++ = 0; /* auth length */ 166 167 return p; 168 } 169 170 /************************************************************************** 171 RPC_LOOKUP - Lookup RPC Port numbers 172 **************************************************************************/ 173 static void 174 rpc_req (int rpc_prog, int rpc_proc, uint32_t *data, int datalen) 175 { 176 struct rpc_t pkt; 177 unsigned long id; 178 uint32_t *p; 179 int pktlen; 180 int sport; 181 182 id = ++rpc_id; 183 pkt.u.call.id = htonl(id); 184 pkt.u.call.type = htonl(MSG_CALL); 185 pkt.u.call.rpcvers = htonl(2); /* use RPC version 2 */ 186 pkt.u.call.prog = htonl(rpc_prog); 187 pkt.u.call.vers = htonl(2); /* portmapper is version 2 */ 188 pkt.u.call.proc = htonl(rpc_proc); 189 p = (uint32_t *)&(pkt.u.call.data); 190 191 if (datalen) 192 memcpy ((char *)p, (char *)data, datalen*sizeof(uint32_t)); 193 194 pktlen = (char *)p + datalen*sizeof(uint32_t) - (char *)&pkt; 195 196 memcpy ((char *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE, (char *)&pkt, pktlen); 197 198 if (rpc_prog == PROG_PORTMAP) 199 sport = SUNRPC_PORT; 200 else if (rpc_prog == PROG_MOUNT) 201 sport = NfsSrvMountPort; 202 else 203 sport = NfsSrvNfsPort; 204 205 NetSendUDPPacket (NetServerEther, NfsServerIP, sport, NfsOurPort, pktlen); 206 } 207 208 /************************************************************************** 209 RPC_LOOKUP - Lookup RPC Port numbers 210 **************************************************************************/ 211 static void 212 rpc_lookup_req (int prog, int ver) 213 { 214 uint32_t data[16]; 215 216 data[0] = 0; data[1] = 0; /* auth credential */ 217 data[2] = 0; data[3] = 0; /* auth verifier */ 218 data[4] = htonl(prog); 219 data[5] = htonl(ver); 220 data[6] = htonl(17); /* IP_UDP */ 221 data[7] = 0; 222 223 rpc_req (PROG_PORTMAP, PORTMAP_GETPORT, data, 8); 224 } 225 226 /************************************************************************** 227 NFS_MOUNT - Mount an NFS Filesystem 228 **************************************************************************/ 229 static void 230 nfs_mount_req (char *path) 231 { 232 uint32_t data[1024]; 233 uint32_t *p; 234 int len; 235 int pathlen; 236 237 pathlen = strlen (path); 238 239 p = &(data[0]); 240 p = (uint32_t *)rpc_add_credentials((long *)p); 241 242 *p++ = htonl(pathlen); 243 if (pathlen & 3) *(p + pathlen / 4) = 0; 244 memcpy (p, path, pathlen); 245 p += (pathlen + 3) / 4; 246 247 len = (uint32_t *)p - (uint32_t *)&(data[0]); 248 249 rpc_req (PROG_MOUNT, MOUNT_ADDENTRY, data, len); 250 } 251 252 /************************************************************************** 253 NFS_UMOUNTALL - Unmount all our NFS Filesystems on the Server 254 **************************************************************************/ 255 static void 256 nfs_umountall_req (void) 257 { 258 uint32_t data[1024]; 259 uint32_t *p; 260 int len; 261 262 if ((NfsSrvMountPort == -1) || (!fs_mounted)) { 263 /* Nothing mounted, nothing to umount */ 264 return; 265 } 266 267 p = &(data[0]); 268 p = (uint32_t *)rpc_add_credentials ((long *)p); 269 270 len = (uint32_t *)p - (uint32_t *)&(data[0]); 271 272 rpc_req (PROG_MOUNT, MOUNT_UMOUNTALL, data, len); 273 } 274 275 /*************************************************************************** 276 * NFS_READLINK (AH 2003-07-14) 277 * This procedure is called when read of the first block fails - 278 * this probably happens when it's a directory or a symlink 279 * In case of successful readlink(), the dirname is manipulated, 280 * so that inside the nfs() function a recursion can be done. 281 **************************************************************************/ 282 static void 283 nfs_readlink_req (void) 284 { 285 uint32_t data[1024]; 286 uint32_t *p; 287 int len; 288 289 p = &(data[0]); 290 p = (uint32_t *)rpc_add_credentials ((long *)p); 291 292 memcpy (p, filefh, NFS_FHSIZE); 293 p += (NFS_FHSIZE / 4); 294 295 len = (uint32_t *)p - (uint32_t *)&(data[0]); 296 297 rpc_req (PROG_NFS, NFS_READLINK, data, len); 298 } 299 300 /************************************************************************** 301 NFS_LOOKUP - Lookup Pathname 302 **************************************************************************/ 303 static void 304 nfs_lookup_req (char *fname) 305 { 306 uint32_t data[1024]; 307 uint32_t *p; 308 int len; 309 int fnamelen; 310 311 fnamelen = strlen (fname); 312 313 p = &(data[0]); 314 p = (uint32_t *)rpc_add_credentials ((long *)p); 315 316 memcpy (p, dirfh, NFS_FHSIZE); 317 p += (NFS_FHSIZE / 4); 318 *p++ = htonl(fnamelen); 319 if (fnamelen & 3) *(p + fnamelen / 4) = 0; 320 memcpy (p, fname, fnamelen); 321 p += (fnamelen + 3) / 4; 322 323 len = (uint32_t *)p - (uint32_t *)&(data[0]); 324 325 rpc_req (PROG_NFS, NFS_LOOKUP, data, len); 326 } 327 328 /************************************************************************** 329 NFS_READ - Read File on NFS Server 330 **************************************************************************/ 331 static void 332 nfs_read_req (int offset, int readlen) 333 { 334 uint32_t data[1024]; 335 uint32_t *p; 336 int len; 337 338 p = &(data[0]); 339 p = (uint32_t *)rpc_add_credentials ((long *)p); 340 341 memcpy (p, filefh, NFS_FHSIZE); 342 p += (NFS_FHSIZE / 4); 343 *p++ = htonl(offset); 344 *p++ = htonl(readlen); 345 *p++ = 0; 346 347 len = (uint32_t *)p - (uint32_t *)&(data[0]); 348 349 rpc_req (PROG_NFS, NFS_READ, data, len); 350 } 351 352 /************************************************************************** 353 RPC request dispatcher 354 **************************************************************************/ 355 356 static void 357 NfsSend (void) 358 { 359 #ifdef NFS_DEBUG 360 printf ("%s\n", __FUNCTION__); 361 #endif 362 363 switch (NfsState) { 364 case STATE_PRCLOOKUP_PROG_MOUNT_REQ: 365 rpc_lookup_req (PROG_MOUNT, 1); 366 break; 367 case STATE_PRCLOOKUP_PROG_NFS_REQ: 368 rpc_lookup_req (PROG_NFS, 2); 369 break; 370 case STATE_MOUNT_REQ: 371 nfs_mount_req (nfs_path); 372 break; 373 case STATE_UMOUNT_REQ: 374 nfs_umountall_req (); 375 break; 376 case STATE_LOOKUP_REQ: 377 nfs_lookup_req (nfs_filename); 378 break; 379 case STATE_READ_REQ: 380 nfs_read_req (nfs_offset, nfs_len); 381 break; 382 case STATE_READLINK_REQ: 383 nfs_readlink_req (); 384 break; 385 } 386 } 387 388 /************************************************************************** 389 Handlers for the reply from server 390 **************************************************************************/ 391 392 static int 393 rpc_lookup_reply (int prog, uchar *pkt, unsigned len) 394 { 395 struct rpc_t rpc_pkt; 396 397 memcpy ((unsigned char *)&rpc_pkt, pkt, len); 398 399 #ifdef NFS_DEBUG 400 printf ("%s\n", __FUNCTION__); 401 #endif 402 403 if (ntohl(rpc_pkt.u.reply.id) != rpc_id) 404 return -1; 405 406 if (rpc_pkt.u.reply.rstatus || 407 rpc_pkt.u.reply.verifier || 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 if ( store_block ((uchar *)pkt+sizeof(rpc_pkt.u.reply), nfs_offset, rlen) ) 577 return -9999; 578 579 return rlen; 580 } 581 582 /************************************************************************** 583 Interfaces of U-BOOT 584 **************************************************************************/ 585 586 static void 587 NfsTimeout (void) 588 { 589 puts ("Timeout\n"); 590 NetState = NETLOOP_FAIL; 591 return; 592 } 593 594 static void 595 NfsHandler (uchar *pkt, unsigned dest, unsigned src, unsigned len) 596 { 597 int rlen; 598 599 #ifdef NFS_DEBUG 600 printf ("%s\n", __FUNCTION__); 601 #endif 602 603 if (dest != NfsOurPort) return; 604 605 switch (NfsState) { 606 case STATE_PRCLOOKUP_PROG_MOUNT_REQ: 607 rpc_lookup_reply (PROG_MOUNT, pkt, len); 608 NfsState = STATE_PRCLOOKUP_PROG_NFS_REQ; 609 NfsSend (); 610 break; 611 612 case STATE_PRCLOOKUP_PROG_NFS_REQ: 613 rpc_lookup_reply (PROG_NFS, pkt, len); 614 NfsState = STATE_MOUNT_REQ; 615 NfsSend (); 616 break; 617 618 case STATE_MOUNT_REQ: 619 if (nfs_mount_reply(pkt, len)) { 620 puts ("*** ERROR: Cannot mount\n"); 621 /* just to be sure... */ 622 NfsState = STATE_UMOUNT_REQ; 623 NfsSend (); 624 } else { 625 NfsState = STATE_LOOKUP_REQ; 626 NfsSend (); 627 } 628 break; 629 630 case STATE_UMOUNT_REQ: 631 if (nfs_umountall_reply(pkt, len)) { 632 puts ("*** ERROR: Cannot umount\n"); 633 NetState = NETLOOP_FAIL; 634 } else { 635 puts ("\ndone\n"); 636 NetState = NfsDownloadState; 637 } 638 break; 639 640 case STATE_LOOKUP_REQ: 641 if (nfs_lookup_reply(pkt, len)) { 642 puts ("*** ERROR: File lookup fail\n"); 643 NfsState = STATE_UMOUNT_REQ; 644 NfsSend (); 645 } else { 646 NfsState = STATE_READ_REQ; 647 nfs_offset = 0; 648 nfs_len = NFS_READ_SIZE; 649 NfsSend (); 650 } 651 break; 652 653 case STATE_READLINK_REQ: 654 if (nfs_readlink_reply(pkt, len)) { 655 puts ("*** ERROR: Symlink fail\n"); 656 NfsState = STATE_UMOUNT_REQ; 657 NfsSend (); 658 } else { 659 #ifdef NFS_DEBUG 660 printf ("Symlink --> %s\n", nfs_path); 661 #endif 662 nfs_filename = basename (nfs_path); 663 nfs_path = dirname (nfs_path); 664 665 NfsState = STATE_MOUNT_REQ; 666 NfsSend (); 667 } 668 break; 669 670 case STATE_READ_REQ: 671 rlen = nfs_read_reply (pkt, len); 672 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout); 673 if (rlen > 0) { 674 nfs_offset += rlen; 675 NfsSend (); 676 } 677 else if ((rlen == -NFSERR_ISDIR)||(rlen == -NFSERR_INVAL)) { 678 /* symbolic link */ 679 NfsState = STATE_READLINK_REQ; 680 NfsSend (); 681 } else { 682 if ( ! rlen ) NfsDownloadState = NETLOOP_SUCCESS; 683 NfsState = STATE_UMOUNT_REQ; 684 NfsSend (); 685 } 686 break; 687 } 688 } 689 690 691 void 692 NfsStart (void) 693 { 694 #ifdef NFS_DEBUG 695 printf ("%s\n", __FUNCTION__); 696 #endif 697 NfsDownloadState = NETLOOP_FAIL; 698 699 NfsServerIP = NetServerIP; 700 nfs_path = (char *)nfs_path_buff; 701 702 if (nfs_path == NULL) { 703 NetState = NETLOOP_FAIL; 704 puts ("*** ERROR: Fail allocate memory\n"); 705 return; 706 } 707 708 if (BootFile[0] == '\0') { 709 sprintf (default_filename, "/nfsroot/%02lX%02lX%02lX%02lX.img", 710 NetOurIP & 0xFF, 711 (NetOurIP >> 8) & 0xFF, 712 (NetOurIP >> 16) & 0xFF, 713 (NetOurIP >> 24) & 0xFF ); 714 strcpy (nfs_path, default_filename); 715 716 printf ("*** Warning: no boot file name; using '%s'\n", 717 nfs_path); 718 } else { 719 char *p=BootFile; 720 721 p = strchr (p, ':'); 722 723 if (p != NULL) { 724 NfsServerIP = string_to_ip (BootFile); 725 ++p; 726 strcpy (nfs_path, p); 727 } else { 728 strcpy (nfs_path, BootFile); 729 } 730 } 731 732 nfs_filename = basename (nfs_path); 733 nfs_path = dirname (nfs_path); 734 735 #if defined(CONFIG_NET_MULTI) 736 printf ("Using %s device\n", eth_get_name()); 737 #endif 738 739 puts ("File transfer via NFS from server "); print_IPaddr (NfsServerIP); 740 puts ("; our IP address is "); print_IPaddr (NetOurIP); 741 742 /* Check if we need to send across this subnet */ 743 if (NetOurGatewayIP && NetOurSubnetMask) { 744 IPaddr_t OurNet = NetOurIP & NetOurSubnetMask; 745 IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask; 746 747 if (OurNet != ServerNet) { 748 puts ("; sending through gateway "); 749 print_IPaddr (NetOurGatewayIP) ; 750 } 751 } 752 printf ("\nFilename '%s/%s'.", nfs_path, nfs_filename); 753 754 if (NetBootFileSize) { 755 printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9); 756 print_size (NetBootFileSize<<9, ""); 757 } 758 printf ("\nLoad address: 0x%lx\n" 759 "Loading: *\b", load_addr); 760 761 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout); 762 NetSetHandler (NfsHandler); 763 764 NfsTimeoutCount = 0; 765 NfsState = STATE_PRCLOOKUP_PROG_MOUNT_REQ; 766 767 /*NfsOurPort = 4096 + (get_ticks() % 3072);*/ 768 /*FIX ME !!!*/ 769 NfsOurPort = 1000; 770 771 /* zero out server ether in case the server ip has changed */ 772 memset (NetServerEther, 0, 6); 773 774 NfsSend (); 775 } 776 777 #endif 778