1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77#include <common.h>
78#include <watchdog.h>
79#include <command.h>
80#include <net.h>
81#include "bootp.h"
82#include "tftp.h"
83#include "rarp.h"
84#include "nfs.h"
85#ifdef CONFIG_STATUS_LED
86#include <status_led.h>
87#include <miiphy.h>
88#endif
89#if defined(CONFIG_CMD_SNTP)
90#include "sntp.h"
91#endif
92
93#if defined(CONFIG_CMD_NET)
94
95DECLARE_GLOBAL_DATA_PTR;
96
97#ifndef CONFIG_ARP_TIMEOUT
98# define ARP_TIMEOUT 50UL
99#elif (CONFIG_ARP_TIMEOUT < 100)
100# error "Due to possible overflow CONFIG_ARP_TIMEOUT must be greater than 100ms"
101#else
102# if (CONFIG_ARP_TIMEOUT % 100)
103# warning "Supported ARP_TIMEOUT precision is 100ms"
104# endif
105# define ARP_TIMEOUT (CONFIG_ARP_TIMEOUT / 100)
106#endif
107
108
109#ifndef CONFIG_NET_RETRY_COUNT
110# define ARP_TIMEOUT_COUNT 5
111#else
112# define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT
113#endif
114
115#if 0
116#define ET_DEBUG
117#endif
118
119
120
121IPaddr_t NetOurSubnetMask=0;
122IPaddr_t NetOurGatewayIP=0;
123IPaddr_t NetOurDNSIP=0;
124#if defined(CONFIG_BOOTP_DNS2)
125IPaddr_t NetOurDNS2IP=0;
126#endif
127char NetOurNISDomain[32]={0,};
128char NetOurHostName[32]={0,};
129char NetOurRootPath[64]={0,};
130ushort NetBootFileSize=0;
131
132#ifdef CONFIG_MCAST_TFTP
133IPaddr_t Mcast_addr;
134#endif
135
136
137
138ulong NetBootFileXferSize;
139uchar NetOurEther[6];
140uchar NetServerEther[6] =
141 { 0, 0, 0, 0, 0, 0 };
142IPaddr_t NetOurIP;
143IPaddr_t NetServerIP;
144volatile uchar *NetRxPkt;
145int NetRxPktLen;
146unsigned NetIPID;
147uchar NetBcastAddr[6] =
148 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
149uchar NetEtherNullAddr[6] =
150 { 0, 0, 0, 0, 0, 0 };
151#ifdef CONFIG_API
152void (*push_packet)(volatile void *, int len) = 0;
153#endif
154#if defined(CONFIG_CMD_CDP)
155uchar NetCDPAddr[6] =
156 { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc };
157#endif
158int NetState;
159#ifdef CONFIG_NET_MULTI
160int NetRestartWrap = 0;
161static int NetRestarted = 0;
162static int NetDevExists = 0;
163#endif
164
165
166ushort NetOurVLAN = 0xFFFF;
167ushort NetOurNativeVLAN = 0xFFFF;
168
169char BootFile[128];
170
171#if defined(CONFIG_CMD_PING)
172IPaddr_t NetPingIP;
173
174static void PingStart(void);
175#endif
176
177#if defined(CONFIG_CMD_CDP)
178static void CDPStart(void);
179#endif
180
181#if defined(CONFIG_CMD_SNTP)
182IPaddr_t NetNtpServerIP;
183int NetTimeOffset=0;
184#endif
185
186#ifdef CONFIG_NETCONSOLE
187void NcStart(void);
188int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len);
189#endif
190
191volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
192
193volatile uchar *NetRxPackets[PKTBUFSRX];
194
195static rxhand_f *packetHandler;
196static thand_f *timeHandler;
197static ulong timeStart;
198static ulong timeDelta;
199volatile uchar *NetTxPacket = 0;
200
201static int net_check_prereq (proto_t protocol);
202
203
204
205IPaddr_t NetArpWaitPacketIP;
206IPaddr_t NetArpWaitReplyIP;
207uchar *NetArpWaitPacketMAC;
208uchar *NetArpWaitTxPacket;
209int NetArpWaitTxPacketSize;
210uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
211ulong NetArpWaitTimerStart;
212int NetArpWaitTry;
213
214void ArpRequest (void)
215{
216 int i;
217 volatile uchar *pkt;
218 ARP_t *arp;
219
220#ifdef ET_DEBUG
221 printf ("ARP broadcast %d\n", NetArpWaitTry);
222#endif
223 pkt = NetTxPacket;
224
225 pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP);
226
227 arp = (ARP_t *) pkt;
228
229 arp->ar_hrd = htons (ARP_ETHER);
230 arp->ar_pro = htons (PROT_IP);
231 arp->ar_hln = 6;
232 arp->ar_pln = 4;
233 arp->ar_op = htons (ARPOP_REQUEST);
234
235 memcpy (&arp->ar_data[0], NetOurEther, 6);
236 NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP);
237 for (i = 10; i < 16; ++i) {
238 arp->ar_data[i] = 0;
239 }
240
241 if ((NetArpWaitPacketIP & NetOurSubnetMask) !=
242 (NetOurIP & NetOurSubnetMask)) {
243 if (NetOurGatewayIP == 0) {
244 puts ("## Warning: gatewayip needed but not set\n");
245 NetArpWaitReplyIP = NetArpWaitPacketIP;
246 } else {
247 NetArpWaitReplyIP = NetOurGatewayIP;
248 }
249 } else {
250 NetArpWaitReplyIP = NetArpWaitPacketIP;
251 }
252
253 NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP);
254 (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE);
255}
256
257void ArpTimeoutCheck(void)
258{
259 ulong t;
260
261 if (!NetArpWaitPacketIP)
262 return;
263
264 t = get_timer(0);
265
266
267 if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ / 10) {
268 NetArpWaitTry++;
269
270 if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) {
271 puts ("\nARP Retry count exceeded; starting again\n");
272 NetArpWaitTry = 0;
273 NetStartAgain();
274 } else {
275 NetArpWaitTimerStart = t;
276 ArpRequest();
277 }
278 }
279}
280
281
282
283
284
285
286int
287NetLoop(proto_t protocol)
288{
289 bd_t *bd = gd->bd;
290
291#ifdef CONFIG_NET_MULTI
292 NetRestarted = 0;
293 NetDevExists = 0;
294#endif
295
296
297 NetArpWaitPacketMAC = NULL;
298 NetArpWaitTxPacket = NULL;
299 NetArpWaitPacketIP = 0;
300 NetArpWaitReplyIP = 0;
301 NetArpWaitTxPacket = NULL;
302 NetTxPacket = NULL;
303
304 if (!NetTxPacket) {
305 int i;
306
307
308
309 NetTxPacket = &PktBuf[0] + (PKTALIGN - 1);
310 NetTxPacket -= (ulong)NetTxPacket % PKTALIGN;
311 for (i = 0; i < PKTBUFSRX; i++) {
312 NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN;
313 }
314 }
315
316 if (!NetArpWaitTxPacket) {
317 NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1);
318 NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN;
319 NetArpWaitTxPacketSize = 0;
320 }
321
322 eth_halt();
323#ifdef CONFIG_NET_MULTI
324 eth_set_current();
325#endif
326 if (eth_init(bd) < 0) {
327 eth_halt();
328 return(-1);
329 }
330
331restart:
332#ifdef CONFIG_NET_MULTI
333 memcpy (NetOurEther, eth_get_dev()->enetaddr, 6);
334#else
335 memcpy (NetOurEther, bd->bi_enetaddr, 6);
336#endif
337
338 NetState = NETLOOP_CONTINUE;
339
340
341
342
343
344
345
346 switch (protocol) {
347#if defined(CONFIG_CMD_NFS)
348 case NFS:
349#endif
350#if defined(CONFIG_CMD_PING)
351 case PING:
352#endif
353#if defined(CONFIG_CMD_SNTP)
354 case SNTP:
355#endif
356 case NETCONS:
357 case TFTP:
358 NetCopyIP(&NetOurIP, &bd->bi_ip_addr);
359 NetOurGatewayIP = getenv_IPaddr ("gatewayip");
360 NetOurSubnetMask= getenv_IPaddr ("netmask");
361 NetOurVLAN = getenv_VLAN("vlan");
362 NetOurNativeVLAN = getenv_VLAN("nvlan");
363
364 switch (protocol) {
365#if defined(CONFIG_CMD_NFS)
366 case NFS:
367#endif
368 case NETCONS:
369 case TFTP:
370 NetServerIP = getenv_IPaddr ("serverip");
371 break;
372#if defined(CONFIG_CMD_PING)
373 case PING:
374
375 break;
376#endif
377#if defined(CONFIG_CMD_SNTP)
378 case SNTP:
379
380 break;
381#endif
382 default:
383 break;
384 }
385
386 break;
387 case BOOTP:
388 case RARP:
389
390
391
392
393 NetOurIP = 0;
394 NetServerIP = getenv_IPaddr ("serverip");
395 NetOurVLAN = getenv_VLAN("vlan");
396 NetOurNativeVLAN = getenv_VLAN("nvlan");
397 case CDP:
398 NetOurVLAN = getenv_VLAN("vlan");
399 NetOurNativeVLAN = getenv_VLAN("nvlan");
400 break;
401 default:
402 break;
403 }
404
405 switch (net_check_prereq (protocol)) {
406 case 1:
407
408 eth_halt();
409 return (-1);
410
411#ifdef CONFIG_NET_MULTI
412 case 2:
413
414 break;
415#endif
416
417 case 0:
418#ifdef CONFIG_NET_MULTI
419 NetDevExists = 1;
420#endif
421 switch (protocol) {
422 case TFTP:
423
424 TftpStart();
425 break;
426
427#if defined(CONFIG_CMD_DHCP)
428 case DHCP:
429
430 BootpTry = 0;
431 NetOurIP = 0;
432 NetServerIP = getenv_IPaddr ("serverip");
433 DhcpRequest();
434 break;
435#endif
436
437 case BOOTP:
438 BootpTry = 0;
439 BootpRequest ();
440 break;
441
442 case RARP:
443 RarpTry = 0;
444 RarpRequest ();
445 break;
446#if defined(CONFIG_CMD_PING)
447 case PING:
448 PingStart();
449 break;
450#endif
451#if defined(CONFIG_CMD_NFS)
452 case NFS:
453 NfsStart();
454 break;
455#endif
456#if defined(CONFIG_CMD_CDP)
457 case CDP:
458 CDPStart();
459 break;
460#endif
461#ifdef CONFIG_NETCONSOLE
462 case NETCONS:
463 NcStart();
464 break;
465#endif
466#if defined(CONFIG_CMD_SNTP)
467 case SNTP:
468 SntpStart();
469 break;
470#endif
471 default:
472 break;
473 }
474
475 NetBootFileXferSize = 0;
476 break;
477 }
478
479#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
480#if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED)
481
482
483
484 if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) {
485 status_led_set (STATUS_LED_RED, STATUS_LED_OFF);
486 } else {
487 status_led_set (STATUS_LED_RED, STATUS_LED_ON);
488 }
489#endif
490#endif
491
492
493
494
495
496 for (;;) {
497 WATCHDOG_RESET();
498#ifdef CONFIG_SHOW_ACTIVITY
499 {
500 extern void show_activity(int arg);
501 show_activity(1);
502 }
503#endif
504
505
506
507
508 eth_rx();
509
510
511
512
513 if (ctrlc()) {
514 eth_halt();
515 puts ("\nAbort\n");
516 return (-1);
517 }
518
519 ArpTimeoutCheck();
520
521
522
523
524
525 if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) {
526 thand_f *x;
527
528#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
529# if defined(CFG_FAULT_ECHO_LINK_DOWN) && \
530 defined(CONFIG_STATUS_LED) && \
531 defined(STATUS_LED_RED)
532
533
534
535 if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) {
536 status_led_set (STATUS_LED_RED, STATUS_LED_OFF);
537 } else {
538 status_led_set (STATUS_LED_RED, STATUS_LED_ON);
539 }
540# endif
541#endif
542 x = timeHandler;
543 timeHandler = (thand_f *)0;
544 (*x)();
545 }
546
547
548 switch (NetState) {
549
550 case NETLOOP_RESTART:
551#ifdef CONFIG_NET_MULTI
552 NetRestarted = 1;
553#endif
554 goto restart;
555
556 case NETLOOP_SUCCESS:
557 if (NetBootFileXferSize > 0) {
558 char buf[20];
559 printf("Bytes transferred = %ld (%lx hex)\n",
560 NetBootFileXferSize,
561 NetBootFileXferSize);
562 sprintf(buf, "%lX", NetBootFileXferSize);
563 setenv("filesize", buf);
564
565 sprintf(buf, "%lX", (unsigned long)load_addr);
566 setenv("fileaddr", buf);
567 }
568 eth_halt();
569 return NetBootFileXferSize;
570
571 case NETLOOP_FAIL:
572 return (-1);
573 }
574 }
575}
576
577
578
579static void
580startAgainTimeout(void)
581{
582 NetState = NETLOOP_RESTART;
583}
584
585static void
586startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
587{
588
589}
590
591void NetStartAgain (void)
592{
593 char *nretry;
594 int noretry = 0, once = 0;
595
596 if ((nretry = getenv ("netretry")) != NULL) {
597 noretry = (strcmp (nretry, "no") == 0);
598 once = (strcmp (nretry, "once") == 0);
599 }
600 if (noretry) {
601 eth_halt ();
602 NetState = NETLOOP_FAIL;
603 return;
604 }
605#ifndef CONFIG_NET_MULTI
606 NetSetTimeout (10UL * CFG_HZ, startAgainTimeout);
607 NetSetHandler (startAgainHandler);
608#else
609 eth_halt ();
610#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER)
611 eth_try_another (!NetRestarted);
612#endif
613 eth_init (gd->bd);
614 if (NetRestartWrap) {
615 NetRestartWrap = 0;
616 if (NetDevExists && !once) {
617 NetSetTimeout (10UL * CFG_HZ, startAgainTimeout);
618 NetSetHandler (startAgainHandler);
619 } else {
620 NetState = NETLOOP_FAIL;
621 }
622 } else {
623 NetState = NETLOOP_RESTART;
624 }
625#endif
626}
627
628
629
630
631
632
633void
634NetSetHandler(rxhand_f * f)
635{
636 packetHandler = f;
637}
638
639
640void
641NetSetTimeout(ulong iv, thand_f * f)
642{
643 if (iv == 0) {
644 timeHandler = (thand_f *)0;
645 } else {
646 timeHandler = f;
647 timeStart = get_timer(0);
648 timeDelta = iv;
649 }
650}
651
652
653void
654NetSendPacket(volatile uchar * pkt, int len)
655{
656 (void) eth_send(pkt, len);
657}
658
659int
660NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len)
661{
662 uchar *pkt;
663
664
665 if (dest == 0)
666 dest = 0xFFFFFFFF;
667
668
669 if (dest == 0xFFFFFFFF)
670 ether = NetBcastAddr;
671
672
673 if (memcmp(ether, NetEtherNullAddr, 6) == 0) {
674
675#ifdef ET_DEBUG
676 printf("sending ARP for %08lx\n", dest);
677#endif
678 NetArpWaitPacketIP = dest;
679 NetArpWaitPacketMAC = ether;
680
681 pkt = NetArpWaitTxPacket;
682 pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP);
683
684 NetSetIP (pkt, dest, dport, sport, len);
685 memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len);
686
687
688 NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len;
689
690
691 NetArpWaitTry = 1;
692 NetArpWaitTimerStart = get_timer(0);
693 ArpRequest();
694 return 1;
695 }
696
697#ifdef ET_DEBUG
698 printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n",
699 dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]);
700#endif
701
702 pkt = (uchar *)NetTxPacket;
703 pkt += NetSetEther (pkt, ether, PROT_IP);
704 NetSetIP (pkt, dest, dport, sport, len);
705 (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len);
706
707 return 0;
708}
709
710#if defined(CONFIG_CMD_PING)
711static ushort PingSeqNo;
712
713int PingSend(void)
714{
715 static uchar mac[6];
716 volatile IP_t *ip;
717 volatile ushort *s;
718 uchar *pkt;
719
720
721
722 memcpy(mac, NetEtherNullAddr, 6);
723
724#ifdef ET_DEBUG
725 printf("sending ARP for %08lx\n", NetPingIP);
726#endif
727
728 NetArpWaitPacketIP = NetPingIP;
729 NetArpWaitPacketMAC = mac;
730
731 pkt = NetArpWaitTxPacket;
732 pkt += NetSetEther(pkt, mac, PROT_IP);
733
734 ip = (volatile IP_t *)pkt;
735
736
737
738
739 ip->ip_hl_v = 0x45;
740 ip->ip_tos = 0;
741 ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8);
742 ip->ip_id = htons(NetIPID++);
743 ip->ip_off = htons(0x4000);
744 ip->ip_ttl = 255;
745 ip->ip_p = 0x01;
746 ip->ip_sum = 0;
747 NetCopyIP((void*)&ip->ip_src, &NetOurIP);
748 NetCopyIP((void*)&ip->ip_dst, &NetPingIP);
749 ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
750
751 s = &ip->udp_src;
752 s[0] = htons(0x0800);
753 s[1] = 0;
754 s[2] = 0;
755 s[3] = htons(PingSeqNo++);
756 s[1] = ~NetCksum((uchar *)s, 8/2);
757
758
759 NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8;
760
761
762 NetArpWaitTry = 1;
763 NetArpWaitTimerStart = get_timer(0);
764 ArpRequest();
765 return 1;
766}
767
768static void
769PingTimeout (void)
770{
771 eth_halt();
772 NetState = NETLOOP_FAIL;
773}
774
775static void
776PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
777{
778 IPaddr_t tmp;
779 volatile IP_t *ip = (volatile IP_t *)pkt;
780
781 tmp = NetReadIP((void *)&ip->ip_src);
782 if (tmp != NetPingIP)
783 return;
784
785 NetState = NETLOOP_SUCCESS;
786}
787
788static void PingStart(void)
789{
790#if defined(CONFIG_NET_MULTI)
791 printf ("Using %s device\n", eth_get_name());
792#endif
793 NetSetTimeout (10UL * CFG_HZ, PingTimeout);
794 NetSetHandler (PingHandler);
795
796 PingSend();
797}
798#endif
799
800#if defined(CONFIG_CMD_CDP)
801
802#define CDP_DEVICE_ID_TLV 0x0001
803#define CDP_ADDRESS_TLV 0x0002
804#define CDP_PORT_ID_TLV 0x0003
805#define CDP_CAPABILITIES_TLV 0x0004
806#define CDP_VERSION_TLV 0x0005
807#define CDP_PLATFORM_TLV 0x0006
808#define CDP_NATIVE_VLAN_TLV 0x000a
809#define CDP_APPLIANCE_VLAN_TLV 0x000e
810#define CDP_TRIGGER_TLV 0x000f
811#define CDP_POWER_CONSUMPTION_TLV 0x0010
812#define CDP_SYSNAME_TLV 0x0014
813#define CDP_SYSOBJECT_TLV 0x0015
814#define CDP_MANAGEMENT_ADDRESS_TLV 0x0016
815
816#define CDP_TIMEOUT (CFG_HZ/4)
817
818static int CDPSeq;
819static int CDPOK;
820
821ushort CDPNativeVLAN;
822ushort CDPApplianceVLAN;
823
824static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 };
825
826static ushort CDP_compute_csum(const uchar *buff, ushort len)
827{
828 ushort csum;
829 int odd;
830 ulong result = 0;
831 ushort leftover;
832 ushort *p;
833
834 if (len > 0) {
835 odd = 1 & (ulong)buff;
836 if (odd) {
837 result = *buff << 8;
838 len--;
839 buff++;
840 }
841 while (len > 1) {
842 p = (ushort *)buff;
843 result += *p++;
844 buff = (uchar *)p;
845 if (result & 0x80000000)
846 result = (result & 0xFFFF) + (result >> 16);
847 len -= 2;
848 }
849 if (len) {
850 leftover = (signed short)(*(const signed char *)buff);
851
852
853
854
855 result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff);
856 }
857 while (result >> 16)
858 result = (result & 0xFFFF) + (result >> 16);
859
860 if (odd)
861 result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
862 }
863
864
865 result = (result & 0xffff) + (result >> 16);
866
867 result = (result & 0xffff) + (result >> 16);
868
869 result = (result & 0xffff) + (result >> 16);
870
871
872 csum = ~(ushort)result;
873
874
875 if (csum != htons(csum))
876 csum = htons(csum);
877
878 return csum;
879}
880
881int CDPSendTrigger(void)
882{
883 volatile uchar *pkt;
884 volatile ushort *s;
885 volatile ushort *cp;
886 Ethernet_t *et;
887 int len;
888 ushort chksum;
889#if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \
890 defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM)
891 char buf[32];
892#endif
893
894 pkt = NetTxPacket;
895 et = (Ethernet_t *)pkt;
896
897
898
899
900 memcpy(et->et_dest, NetCDPAddr, 6);
901 memcpy(et->et_src, NetOurEther, 6);
902
903 pkt += ETHER_HDR_SIZE;
904
905
906 memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr));
907 pkt += sizeof(CDP_SNAP_hdr);
908
909
910 *pkt++ = 0x02;
911 *pkt++ = 180;
912 s = (volatile ushort *)pkt;
913 cp = s;
914 *s++ = htons(0);
915
916
917#ifdef CONFIG_CDP_DEVICE_ID
918 *s++ = htons(CDP_DEVICE_ID_TLV);
919 *s++ = htons(CONFIG_CDP_DEVICE_ID);
920 memset(buf, 0, sizeof(buf));
921 sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X",
922 NetOurEther[0] & 0xff, NetOurEther[1] & 0xff,
923 NetOurEther[2] & 0xff, NetOurEther[3] & 0xff,
924 NetOurEther[4] & 0xff, NetOurEther[5] & 0xff);
925 memcpy((uchar *)s, buf, 16);
926 s += 16 / 2;
927#endif
928
929#ifdef CONFIG_CDP_PORT_ID
930 *s++ = htons(CDP_PORT_ID_TLV);
931 memset(buf, 0, sizeof(buf));
932 sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index());
933 len = strlen(buf);
934 if (len & 1)
935 len++;
936 *s++ = htons(len + 4);
937 memcpy((uchar *)s, buf, len);
938 s += len / 2;
939#endif
940
941#ifdef CONFIG_CDP_CAPABILITIES
942 *s++ = htons(CDP_CAPABILITIES_TLV);
943 *s++ = htons(8);
944 *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES);
945 s += 2;
946#endif
947
948#ifdef CONFIG_CDP_VERSION
949 *s++ = htons(CDP_VERSION_TLV);
950 memset(buf, 0, sizeof(buf));
951 strcpy(buf, CONFIG_CDP_VERSION);
952 len = strlen(buf);
953 if (len & 1)
954 len++;
955 *s++ = htons(len + 4);
956 memcpy((uchar *)s, buf, len);
957 s += len / 2;
958#endif
959
960#ifdef CONFIG_CDP_PLATFORM
961 *s++ = htons(CDP_PLATFORM_TLV);
962 memset(buf, 0, sizeof(buf));
963 strcpy(buf, CONFIG_CDP_PLATFORM);
964 len = strlen(buf);
965 if (len & 1)
966 len++;
967 *s++ = htons(len + 4);
968 memcpy((uchar *)s, buf, len);
969 s += len / 2;
970#endif
971
972#ifdef CONFIG_CDP_TRIGGER
973 *s++ = htons(CDP_TRIGGER_TLV);
974 *s++ = htons(8);
975 *(ulong *)s = htonl(CONFIG_CDP_TRIGGER);
976 s += 2;
977#endif
978
979#ifdef CONFIG_CDP_POWER_CONSUMPTION
980 *s++ = htons(CDP_POWER_CONSUMPTION_TLV);
981 *s++ = htons(6);
982 *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION);
983#endif
984
985
986 len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE);
987 et->et_protlen = htons(len);
988
989 len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr);
990 chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len));
991 if (chksum == 0)
992 chksum = 0xFFFF;
993 *cp = htons(chksum);
994
995 (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket);
996 return 0;
997}
998
999static void
1000CDPTimeout (void)
1001{
1002 CDPSeq++;
1003
1004 if (CDPSeq < 3) {
1005 NetSetTimeout (CDP_TIMEOUT, CDPTimeout);
1006 CDPSendTrigger();
1007 return;
1008 }
1009
1010
1011 if (!CDPOK)
1012 NetStartAgain();
1013 else
1014 NetState = NETLOOP_SUCCESS;
1015}
1016
1017static void
1018CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len)
1019{
1020
1021}
1022
1023static void
1024CDPHandler(const uchar * pkt, unsigned len)
1025{
1026 const uchar *t;
1027 const ushort *ss;
1028 ushort type, tlen;
1029 uchar applid;
1030 ushort vlan, nvlan;
1031
1032
1033 if (len < sizeof(CDP_SNAP_hdr) + 4)
1034 goto pkt_short;
1035
1036
1037 if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0)
1038 return;
1039
1040 pkt += sizeof(CDP_SNAP_hdr);
1041 len -= sizeof(CDP_SNAP_hdr);
1042
1043
1044 if (pkt[0] < 0x02 || pkt[1] == 0)
1045 return;
1046
1047
1048 if (pkt[0] != 0x02)
1049 printf("** WARNING: CDP packet received with a protocol version %d > 2\n",
1050 pkt[0] & 0xff);
1051
1052 if (CDP_compute_csum(pkt, len) != 0)
1053 return;
1054
1055 pkt += 4;
1056 len -= 4;
1057
1058 vlan = htons(-1);
1059 nvlan = htons(-1);
1060 while (len > 0) {
1061 if (len < 4)
1062 goto pkt_short;
1063
1064 ss = (const ushort *)pkt;
1065 type = ntohs(ss[0]);
1066 tlen = ntohs(ss[1]);
1067 if (tlen > len) {
1068 goto pkt_short;
1069 }
1070
1071 pkt += tlen;
1072 len -= tlen;
1073
1074 ss += 2;
1075 tlen -= 4;
1076
1077 switch (type) {
1078 case CDP_DEVICE_ID_TLV:
1079 break;
1080 case CDP_ADDRESS_TLV:
1081 break;
1082 case CDP_PORT_ID_TLV:
1083 break;
1084 case CDP_CAPABILITIES_TLV:
1085 break;
1086 case CDP_VERSION_TLV:
1087 break;
1088 case CDP_PLATFORM_TLV:
1089 break;
1090 case CDP_NATIVE_VLAN_TLV:
1091 nvlan = *ss;
1092 break;
1093 case CDP_APPLIANCE_VLAN_TLV:
1094 t = (const uchar *)ss;
1095 while (tlen > 0) {
1096 if (tlen < 3)
1097 goto pkt_short;
1098
1099 applid = t[0];
1100 ss = (const ushort *)(t + 1);
1101
1102#ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE
1103 if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE)
1104 vlan = *ss;
1105#else
1106 vlan = ntohs(*ss);
1107#endif
1108 t += 3; tlen -= 3;
1109 }
1110 break;
1111 case CDP_TRIGGER_TLV:
1112 break;
1113 case CDP_POWER_CONSUMPTION_TLV:
1114 break;
1115 case CDP_SYSNAME_TLV:
1116 break;
1117 case CDP_SYSOBJECT_TLV:
1118 break;
1119 case CDP_MANAGEMENT_ADDRESS_TLV:
1120 break;
1121 }
1122 }
1123
1124 CDPApplianceVLAN = vlan;
1125 CDPNativeVLAN = nvlan;
1126
1127 CDPOK = 1;
1128 return;
1129
1130 pkt_short:
1131 printf("** CDP packet is too short\n");
1132 return;
1133}
1134
1135static void CDPStart(void)
1136{
1137#if defined(CONFIG_NET_MULTI)
1138 printf ("Using %s device\n", eth_get_name());
1139#endif
1140 CDPSeq = 0;
1141 CDPOK = 0;
1142
1143 CDPNativeVLAN = htons(-1);
1144 CDPApplianceVLAN = htons(-1);
1145
1146 NetSetTimeout (CDP_TIMEOUT, CDPTimeout);
1147 NetSetHandler (CDPDummyHandler);
1148
1149 CDPSendTrigger();
1150}
1151#endif
1152
1153
1154void
1155NetReceive(volatile uchar * inpkt, int len)
1156{
1157 Ethernet_t *et;
1158 IP_t *ip;
1159 ARP_t *arp;
1160 IPaddr_t tmp;
1161 int x;
1162 uchar *pkt;
1163#if defined(CONFIG_CMD_CDP)
1164 int iscdp;
1165#endif
1166 ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid;
1167
1168#ifdef ET_DEBUG
1169 printf("packet received\n");
1170#endif
1171
1172 NetRxPkt = inpkt;
1173 NetRxPktLen = len;
1174 et = (Ethernet_t *)inpkt;
1175
1176
1177 if (len < ETHER_HDR_SIZE)
1178 return;
1179
1180#ifdef CONFIG_API
1181 if (push_packet) {
1182 (*push_packet)(inpkt, len);
1183 return;
1184 }
1185#endif
1186
1187#if defined(CONFIG_CMD_CDP)
1188
1189 iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0;
1190#endif
1191
1192 myvlanid = ntohs(NetOurVLAN);
1193 if (myvlanid == (ushort)-1)
1194 myvlanid = VLAN_NONE;
1195 mynvlanid = ntohs(NetOurNativeVLAN);
1196 if (mynvlanid == (ushort)-1)
1197 mynvlanid = VLAN_NONE;
1198
1199 x = ntohs(et->et_protlen);
1200
1201#ifdef ET_DEBUG
1202 printf("packet received\n");
1203#endif
1204
1205 if (x < 1514) {
1206
1207
1208
1209 x = ntohs(et->et_prot);
1210
1211 ip = (IP_t *)(inpkt + E802_HDR_SIZE);
1212 len -= E802_HDR_SIZE;
1213
1214 } else if (x != PROT_VLAN) {
1215 ip = (IP_t *)(inpkt + ETHER_HDR_SIZE);
1216 len -= ETHER_HDR_SIZE;
1217
1218 } else {
1219 VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et;
1220
1221#ifdef ET_DEBUG
1222 printf("VLAN packet received\n");
1223#endif
1224
1225 if (len < VLAN_ETHER_HDR_SIZE)
1226 return;
1227
1228
1229 if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE
1230#if defined(CONFIG_CMD_CDP)
1231 && iscdp == 0
1232#endif
1233 )
1234 return;
1235
1236 cti = ntohs(vet->vet_tag);
1237 vlanid = cti & VLAN_IDMASK;
1238 x = ntohs(vet->vet_type);
1239
1240 ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE);
1241 len -= VLAN_ETHER_HDR_SIZE;
1242 }
1243
1244#ifdef ET_DEBUG
1245 printf("Receive from protocol 0x%x\n", x);
1246#endif
1247
1248#if defined(CONFIG_CMD_CDP)
1249 if (iscdp) {
1250 CDPHandler((uchar *)ip, len);
1251 return;
1252 }
1253#endif
1254
1255 if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) {
1256 if (vlanid == VLAN_NONE)
1257 vlanid = (mynvlanid & VLAN_IDMASK);
1258
1259 if (vlanid != (myvlanid & VLAN_IDMASK))
1260 return;
1261 }
1262
1263 switch (x) {
1264
1265 case PROT_ARP:
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275#ifdef ET_DEBUG
1276 puts ("Got ARP\n");
1277#endif
1278 arp = (ARP_t *)ip;
1279 if (len < ARP_HDR_SIZE) {
1280 printf("bad length %d < %d\n", len, ARP_HDR_SIZE);
1281 return;
1282 }
1283 if (ntohs(arp->ar_hrd) != ARP_ETHER) {
1284 return;
1285 }
1286 if (ntohs(arp->ar_pro) != PROT_IP) {
1287 return;
1288 }
1289 if (arp->ar_hln != 6) {
1290 return;
1291 }
1292 if (arp->ar_pln != 4) {
1293 return;
1294 }
1295
1296 if (NetOurIP == 0) {
1297 return;
1298 }
1299
1300 if (NetReadIP(&arp->ar_data[16]) != NetOurIP) {
1301 return;
1302 }
1303
1304 switch (ntohs(arp->ar_op)) {
1305 case ARPOP_REQUEST:
1306#ifdef ET_DEBUG
1307 puts ("Got ARP REQUEST, return our IP\n");
1308#endif
1309 pkt = (uchar *)et;
1310 pkt += NetSetEther(pkt, et->et_src, PROT_ARP);
1311 arp->ar_op = htons(ARPOP_REPLY);
1312 memcpy (&arp->ar_data[10], &arp->ar_data[0], 6);
1313 NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]);
1314 memcpy (&arp->ar_data[ 0], NetOurEther, 6);
1315 NetCopyIP(&arp->ar_data[ 6], &NetOurIP);
1316 (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE);
1317 return;
1318
1319 case ARPOP_REPLY:
1320
1321 if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC)
1322 break;
1323#ifdef ET_DEBUG
1324 printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n",
1325 arp->ar_data[0], arp->ar_data[1],
1326 arp->ar_data[2], arp->ar_data[3],
1327 arp->ar_data[4], arp->ar_data[5]);
1328#endif
1329
1330 tmp = NetReadIP(&arp->ar_data[6]);
1331
1332
1333 if (tmp == NetArpWaitReplyIP) {
1334#ifdef ET_DEBUG
1335 puts ("Got it\n");
1336#endif
1337
1338 memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6);
1339
1340#ifdef CONFIG_NETCONSOLE
1341 (*packetHandler)(0,0,0,0);
1342#endif
1343
1344 memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6);
1345 (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize);
1346
1347
1348 NetArpWaitPacketIP = 0;
1349 NetArpWaitTxPacketSize = 0;
1350 NetArpWaitPacketMAC = NULL;
1351
1352 }
1353 return;
1354 default:
1355#ifdef ET_DEBUG
1356 printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op));
1357#endif
1358 return;
1359 }
1360 break;
1361
1362 case PROT_RARP:
1363#ifdef ET_DEBUG
1364 puts ("Got RARP\n");
1365#endif
1366 arp = (ARP_t *)ip;
1367 if (len < ARP_HDR_SIZE) {
1368 printf("bad length %d < %d\n", len, ARP_HDR_SIZE);
1369 return;
1370 }
1371
1372 if ((ntohs(arp->ar_op) != RARPOP_REPLY) ||
1373 (ntohs(arp->ar_hrd) != ARP_ETHER) ||
1374 (ntohs(arp->ar_pro) != PROT_IP) ||
1375 (arp->ar_hln != 6) || (arp->ar_pln != 4)) {
1376
1377 puts ("invalid RARP header\n");
1378 } else {
1379 NetCopyIP(&NetOurIP, &arp->ar_data[16]);
1380 if (NetServerIP == 0)
1381 NetCopyIP(&NetServerIP, &arp->ar_data[ 6]);
1382 memcpy (NetServerEther, &arp->ar_data[ 0], 6);
1383
1384 (*packetHandler)(0,0,0,0);
1385 }
1386 break;
1387
1388 case PROT_IP:
1389#ifdef ET_DEBUG
1390 puts ("Got IP\n");
1391#endif
1392 if (len < IP_HDR_SIZE) {
1393 debug ("len bad %d < %d\n", len, IP_HDR_SIZE);
1394 return;
1395 }
1396 if (len < ntohs(ip->ip_len)) {
1397 printf("len bad %d < %d\n", len, ntohs(ip->ip_len));
1398 return;
1399 }
1400 len = ntohs(ip->ip_len);
1401#ifdef ET_DEBUG
1402 printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff);
1403#endif
1404 if ((ip->ip_hl_v & 0xf0) != 0x40) {
1405 return;
1406 }
1407 if (ip->ip_off & htons(0x1fff)) {
1408 return;
1409 }
1410 if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) {
1411 puts ("checksum bad\n");
1412 return;
1413 }
1414 tmp = NetReadIP(&ip->ip_dst);
1415 if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) {
1416#ifdef CONFIG_MCAST_TFTP
1417 if (Mcast_addr != tmp)
1418#endif
1419 return;
1420 }
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438 if (ip->ip_p == IPPROTO_ICMP) {
1439 ICMP_t *icmph = (ICMP_t *)&(ip->udp_src);
1440
1441 switch (icmph->type) {
1442 case ICMP_REDIRECT:
1443 if (icmph->code != ICMP_REDIR_HOST)
1444 return;
1445 puts (" ICMP Host Redirect to ");
1446 print_IPaddr(icmph->un.gateway);
1447 putc(' ');
1448 return;
1449#if defined(CONFIG_CMD_PING)
1450 case ICMP_ECHO_REPLY:
1451
1452
1453
1454
1455 (*packetHandler)((uchar *)ip, 0, 0, 0);
1456 return;
1457 case ICMP_ECHO_REQUEST:
1458#ifdef ET_DEBUG
1459 printf ("Got ICMP ECHO REQUEST, return %d bytes \n",
1460 ETHER_HDR_SIZE + len);
1461#endif
1462 memcpy (&et->et_dest[0], &et->et_src[0], 6);
1463 memcpy (&et->et_src[ 0], NetOurEther, 6);
1464
1465 ip->ip_sum = 0;
1466 ip->ip_off = 0;
1467 NetCopyIP((void*)&ip->ip_dst, &ip->ip_src);
1468 NetCopyIP((void*)&ip->ip_src, &NetOurIP);
1469 ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1);
1470
1471 icmph->type = ICMP_ECHO_REPLY;
1472 icmph->checksum = 0;
1473 icmph->checksum = ~NetCksum((uchar *)icmph,
1474 (len - IP_HDR_SIZE_NO_UDP) >> 1);
1475 (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len);
1476 return;
1477#endif
1478 default:
1479 return;
1480 }
1481 } else if (ip->ip_p != IPPROTO_UDP) {
1482 return;
1483 }
1484
1485#ifdef CONFIG_UDP_CHECKSUM
1486 if (ip->udp_xsum != 0) {
1487 ulong xsum;
1488 ushort *sumptr;
1489 ushort sumlen;
1490
1491 xsum = ip->ip_p;
1492 xsum += (ntohs(ip->udp_len));
1493 xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff;
1494 xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff;
1495 xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff;
1496 xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff;
1497
1498 sumlen = ntohs(ip->udp_len);
1499 sumptr = (ushort *) &(ip->udp_src);
1500
1501 while (sumlen > 1) {
1502 ushort sumdata;
1503
1504 sumdata = *sumptr++;
1505 xsum += ntohs(sumdata);
1506 sumlen -= 2;
1507 }
1508 if (sumlen > 0) {
1509 ushort sumdata;
1510
1511 sumdata = *(unsigned char *) sumptr;
1512 sumdata = (sumdata << 8) & 0xff00;
1513 xsum += sumdata;
1514 }
1515 while ((xsum >> 16) != 0) {
1516 xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff);
1517 }
1518 if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) {
1519 printf(" UDP wrong checksum %08x %08x\n", xsum, ntohs(ip->udp_xsum));
1520 return;
1521 }
1522 }
1523#endif
1524
1525
1526#ifdef CONFIG_NETCONSOLE
1527 nc_input_packet((uchar *)ip +IP_HDR_SIZE,
1528 ntohs(ip->udp_dst),
1529 ntohs(ip->udp_src),
1530 ntohs(ip->udp_len) - 8);
1531#endif
1532
1533
1534
1535 (*packetHandler)((uchar *)ip +IP_HDR_SIZE,
1536 ntohs(ip->udp_dst),
1537 ntohs(ip->udp_src),
1538 ntohs(ip->udp_len) - 8);
1539 break;
1540 }
1541}
1542
1543
1544
1545
1546static int net_check_prereq (proto_t protocol)
1547{
1548 switch (protocol) {
1549
1550#if defined(CONFIG_CMD_PING)
1551 case PING:
1552 if (NetPingIP == 0) {
1553 puts ("*** ERROR: ping address not given\n");
1554 return (1);
1555 }
1556 goto common;
1557#endif
1558#if defined(CONFIG_CMD_SNTP)
1559 case SNTP:
1560 if (NetNtpServerIP == 0) {
1561 puts ("*** ERROR: NTP server address not given\n");
1562 return (1);
1563 }
1564 goto common;
1565#endif
1566#if defined(CONFIG_CMD_NFS)
1567 case NFS:
1568#endif
1569 case NETCONS:
1570 case TFTP:
1571 if (NetServerIP == 0) {
1572 puts ("*** ERROR: `serverip' not set\n");
1573 return (1);
1574 }
1575#if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP)
1576 common:
1577#endif
1578
1579 if (NetOurIP == 0) {
1580 puts ("*** ERROR: `ipaddr' not set\n");
1581 return (1);
1582 }
1583
1584
1585 case DHCP:
1586 case RARP:
1587 case BOOTP:
1588 case CDP:
1589 if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) {
1590#ifdef CONFIG_NET_MULTI
1591 extern int eth_get_dev_index (void);
1592 int num = eth_get_dev_index ();
1593
1594 switch (num) {
1595 case -1:
1596 puts ("*** ERROR: No ethernet found.\n");
1597 return (1);
1598 case 0:
1599 puts ("*** ERROR: `ethaddr' not set\n");
1600 break;
1601 default:
1602 printf ("*** ERROR: `eth%daddr' not set\n",
1603 num);
1604 break;
1605 }
1606
1607 NetStartAgain ();
1608 return (2);
1609#else
1610 puts ("*** ERROR: `ethaddr' not set\n");
1611 return (1);
1612#endif
1613 }
1614
1615 default:
1616 return (0);
1617 }
1618 return (0);
1619}
1620
1621
1622int
1623NetCksumOk(uchar * ptr, int len)
1624{
1625 return !((NetCksum(ptr, len) + 1) & 0xfffe);
1626}
1627
1628
1629unsigned
1630NetCksum(uchar * ptr, int len)
1631{
1632 ulong xsum;
1633 ushort *p = (ushort *)ptr;
1634
1635 xsum = 0;
1636 while (len-- > 0)
1637 xsum += *p++;
1638 xsum = (xsum & 0xffff) + (xsum >> 16);
1639 xsum = (xsum & 0xffff) + (xsum >> 16);
1640 return (xsum & 0xffff);
1641}
1642
1643int
1644NetEthHdrSize(void)
1645{
1646 ushort myvlanid;
1647
1648 myvlanid = ntohs(NetOurVLAN);
1649 if (myvlanid == (ushort)-1)
1650 myvlanid = VLAN_NONE;
1651
1652 return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE;
1653}
1654
1655int
1656NetSetEther(volatile uchar * xet, uchar * addr, uint prot)
1657{
1658 Ethernet_t *et = (Ethernet_t *)xet;
1659 ushort myvlanid;
1660
1661 myvlanid = ntohs(NetOurVLAN);
1662 if (myvlanid == (ushort)-1)
1663 myvlanid = VLAN_NONE;
1664
1665 memcpy (et->et_dest, addr, 6);
1666 memcpy (et->et_src, NetOurEther, 6);
1667 if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) {
1668 et->et_protlen = htons(prot);
1669 return ETHER_HDR_SIZE;
1670 } else {
1671 VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet;
1672
1673 vet->vet_vlan_type = htons(PROT_VLAN);
1674 vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK));
1675 vet->vet_type = htons(prot);
1676 return VLAN_ETHER_HDR_SIZE;
1677 }
1678}
1679
1680void
1681NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len)
1682{
1683 volatile IP_t *ip = (IP_t *)xip;
1684
1685
1686
1687
1688
1689
1690 if (len & 1)
1691 xip[IP_HDR_SIZE + len] = 0;
1692
1693
1694
1695
1696
1697 ip->ip_hl_v = 0x45;
1698 ip->ip_tos = 0;
1699 ip->ip_len = htons(IP_HDR_SIZE + len);
1700 ip->ip_id = htons(NetIPID++);
1701 ip->ip_off = htons(0x4000);
1702 ip->ip_ttl = 255;
1703 ip->ip_p = 17;
1704 ip->ip_sum = 0;
1705 NetCopyIP((void*)&ip->ip_src, &NetOurIP);
1706 NetCopyIP((void*)&ip->ip_dst, &dest);
1707 ip->udp_src = htons(sport);
1708 ip->udp_dst = htons(dport);
1709 ip->udp_len = htons(8 + len);
1710 ip->udp_xsum = 0;
1711 ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2);
1712}
1713
1714void copy_filename (char *dst, char *src, int size)
1715{
1716 if (*src && (*src == '"')) {
1717 ++src;
1718 --size;
1719 }
1720
1721 while ((--size > 0) && *src && (*src != '"')) {
1722 *dst++ = *src++;
1723 }
1724 *dst = '\0';
1725}
1726
1727#endif
1728
1729void ip_to_string (IPaddr_t x, char *s)
1730{
1731 x = ntohl (x);
1732 sprintf (s, "%d.%d.%d.%d",
1733 (int) ((x >> 24) & 0xff),
1734 (int) ((x >> 16) & 0xff),
1735 (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff)
1736 );
1737}
1738
1739IPaddr_t string_to_ip(char *s)
1740{
1741 IPaddr_t addr;
1742 char *e;
1743 int i;
1744
1745 if (s == NULL)
1746 return(0);
1747
1748 for (addr=0, i=0; i<4; ++i) {
1749 ulong val = s ? simple_strtoul(s, &e, 10) : 0;
1750 addr <<= 8;
1751 addr |= (val & 0xFF);
1752 if (s) {
1753 s = (*e) ? e+1 : e;
1754 }
1755 }
1756
1757 return (htonl(addr));
1758}
1759
1760void VLAN_to_string(ushort x, char *s)
1761{
1762 x = ntohs(x);
1763
1764 if (x == (ushort)-1)
1765 x = VLAN_NONE;
1766
1767 if (x == VLAN_NONE)
1768 strcpy(s, "none");
1769 else
1770 sprintf(s, "%d", x & VLAN_IDMASK);
1771}
1772
1773ushort string_to_VLAN(char *s)
1774{
1775 ushort id;
1776
1777 if (s == NULL)
1778 return htons(VLAN_NONE);
1779
1780 if (*s < '0' || *s > '9')
1781 id = VLAN_NONE;
1782 else
1783 id = (ushort)simple_strtoul(s, NULL, 10);
1784
1785 return htons(id);
1786}
1787
1788void print_IPaddr (IPaddr_t x)
1789{
1790 char tmp[16];
1791
1792 ip_to_string (x, tmp);
1793
1794 puts (tmp);
1795}
1796
1797IPaddr_t getenv_IPaddr (char *var)
1798{
1799 return (string_to_ip(getenv(var)));
1800}
1801
1802ushort getenv_VLAN(char *var)
1803{
1804 return (string_to_VLAN(getenv(var)));
1805}
1806
