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2d966958 WD |
1 | /* |
2 | * Copied from Linux Monitor (LiMon) - Networking. | |
3 | * | |
4 | * Copyright 1994 - 2000 Neil Russell. | |
5 | * (See License) | |
6 | * Copyright 2000 Roland Borde | |
7 | * Copyright 2000 Paolo Scaffardi | |
8 | * Copyright 2000-2002 Wolfgang Denk, wd@denx.de | |
9 | */ | |
10 | ||
11 | /* | |
12 | * General Desription: | |
13 | * | |
14 | * The user interface supports commands for BOOTP, RARP, and TFTP. | |
15 | * Also, we support ARP internally. Depending on available data, | |
16 | * these interact as follows: | |
17 | * | |
18 | * BOOTP: | |
19 | * | |
20 | * Prerequisites: - own ethernet address | |
21 | * We want: - own IP address | |
22 | * - TFTP server IP address | |
23 | * - name of bootfile | |
24 | * Next step: ARP | |
25 | * | |
26 | * RARP: | |
27 | * | |
28 | * Prerequisites: - own ethernet address | |
29 | * We want: - own IP address | |
30 | * - TFTP server IP address | |
31 | * Next step: ARP | |
32 | * | |
33 | * ARP: | |
34 | * | |
35 | * Prerequisites: - own ethernet address | |
36 | * - own IP address | |
37 | * - TFTP server IP address | |
38 | * We want: - TFTP server ethernet address | |
39 | * Next step: TFTP | |
40 | * | |
41 | * DHCP: | |
42 | * | |
43 | * Prerequisites: - own ethernet address | |
44 | * We want: - IP, Netmask, ServerIP, Gateway IP | |
45 | * - bootfilename, lease time | |
46 | * Next step: - TFTP | |
47 | * | |
48 | * TFTP: | |
49 | * | |
50 | * Prerequisites: - own ethernet address | |
51 | * - own IP address | |
52 | * - TFTP server IP address | |
53 | * - TFTP server ethernet address | |
54 | * - name of bootfile (if unknown, we use a default name | |
55 | * derived from our own IP address) | |
56 | * We want: - load the boot file | |
57 | * Next step: none | |
cbd8a35c WD |
58 | * |
59 | * NFS: | |
60 | * | |
61 | * Prerequisites: - own ethernet address | |
62 | * - own IP address | |
63 | * - name of bootfile (if unknown, we use a default name | |
64 | * derived from our own IP address) | |
65 | * We want: - load the boot file | |
66 | * Next step: none | |
2d966958 WD |
67 | */ |
68 | ||
69 | ||
70 | #include <common.h> | |
71 | #include <watchdog.h> | |
72 | #include <command.h> | |
73 | #include <net.h> | |
74 | #include "bootp.h" | |
75 | #include "tftp.h" | |
76 | #include "rarp.h" | |
cbd8a35c | 77 | #include "nfs.h" |
fc3e2165 WD |
78 | #ifdef CONFIG_STATUS_LED |
79 | #include <status_led.h> | |
80 | #include <miiphy.h> | |
81 | #endif | |
2d966958 WD |
82 | |
83 | #if (CONFIG_COMMANDS & CFG_CMD_NET) | |
84 | ||
73a8b27c WD |
85 | #define ARP_TIMEOUT 5 /* Seconds before trying ARP again */ |
86 | #ifndef CONFIG_NET_RETRY_COUNT | |
87 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ | |
88 | #else | |
89 | # define ARP_TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) | |
90 | #endif | |
91 | ||
2d966958 WD |
92 | #if 0 |
93 | #define ET_DEBUG | |
94 | #endif | |
95 | ||
96 | /** BOOTP EXTENTIONS **/ | |
97 | ||
98 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
99 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
100 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
fe389a82 SR |
101 | #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2) |
102 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ | |
103 | #endif | |
2d966958 WD |
104 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
105 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
106 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
107 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
108 | ||
109 | /** END OF BOOTP EXTENTIONS **/ | |
110 | ||
111 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
112 | uchar NetOurEther[6]; /* Our ethernet address */ | |
113 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 114 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 WD |
115 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
116 | IPaddr_t NetServerIP; /* Our IP addr (0 = unknown) */ | |
117 | volatile uchar *NetRxPkt; /* Current receive packet */ | |
118 | int NetRxPktLen; /* Current rx packet length */ | |
119 | unsigned NetIPID; /* IP packet ID */ | |
120 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
121 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
122 | uchar NetEtherNullAddr[6] = |
123 | { 0, 0, 0, 0, 0, 0 }; | |
a3d991bd | 124 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) |
6e592385 | 125 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
126 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
127 | #endif | |
2d966958 WD |
128 | int NetState; /* Network loop state */ |
129 | #ifdef CONFIG_NET_MULTI | |
130 | int NetRestartWrap = 0; /* Tried all network devices */ | |
131 | static int NetRestarted = 0; /* Network loop restarted */ | |
132 | static int NetDevExists = 0; /* At least one device configured */ | |
133 | #endif | |
134 | ||
6e592385 WD |
135 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
136 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
137 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 138 | |
2d966958 WD |
139 | char BootFile[128]; /* Boot File name */ |
140 | ||
73a8b27c WD |
141 | #if (CONFIG_COMMANDS & CFG_CMD_PING) |
142 | IPaddr_t NetPingIP; /* the ip address to ping */ | |
143 | ||
144 | static void PingStart(void); | |
145 | #endif | |
146 | ||
a3d991bd WD |
147 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) |
148 | static void CDPStart(void); | |
149 | #endif | |
150 | ||
68ceb29e WD |
151 | #ifdef CONFIG_NETCONSOLE |
152 | void NcStart(void); | |
153 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
154 | #endif | |
155 | ||
2d966958 WD |
156 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
157 | ||
158 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
159 | ||
160 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
161 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
162 | static ulong timeStart; /* Time base value */ |
163 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
164 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
165 | ||
166 | static int net_check_prereq (proto_t protocol); | |
167 | ||
73a8b27c WD |
168 | /**********************************************************************/ |
169 | ||
170 | IPaddr_t NetArpWaitPacketIP; | |
171 | IPaddr_t NetArpWaitReplyIP; | |
172 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
173 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ | |
174 | int NetArpWaitTxPacketSize; | |
175 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; | |
176 | ulong NetArpWaitTimerStart; | |
177 | int NetArpWaitTry; | |
178 | ||
6e592385 | 179 | void ArpRequest (void) |
73a8b27c WD |
180 | { |
181 | int i; | |
182 | volatile uchar *pkt; | |
6e592385 | 183 | ARP_t *arp; |
73a8b27c WD |
184 | |
185 | #ifdef ET_DEBUG | |
6e592385 | 186 | printf ("ARP broadcast %d\n", NetArpWaitTry); |
73a8b27c WD |
187 | #endif |
188 | pkt = NetTxPacket; | |
189 | ||
6e592385 | 190 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 191 | |
6e592385 | 192 | arp = (ARP_t *) pkt; |
73a8b27c | 193 | |
6e592385 WD |
194 | arp->ar_hrd = htons (ARP_ETHER); |
195 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
196 | arp->ar_hln = 6; |
197 | arp->ar_pln = 4; | |
6e592385 | 198 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 199 | |
6e592385 WD |
200 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
201 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
202 | for (i = 10; i < 16; ++i) { | |
203 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
204 | } |
205 | ||
6e592385 WD |
206 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
207 | (NetOurIP & NetOurSubnetMask)) { | |
208 | if (NetOurGatewayIP == 0) { | |
209 | puts ("## Warning: gatewayip needed but not set\n"); | |
210 | } | |
211 | NetArpWaitReplyIP = NetOurGatewayIP; | |
212 | } else { | |
213 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
214 | } | |
73a8b27c | 215 | |
6e592385 WD |
216 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
217 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
218 | } |
219 | ||
220 | void ArpTimeoutCheck(void) | |
221 | { | |
222 | ulong t; | |
223 | ||
224 | if (!NetArpWaitPacketIP) | |
225 | return; | |
226 | ||
227 | t = get_timer(0); | |
228 | ||
229 | /* check for arp timeout */ | |
230 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ) { | |
231 | NetArpWaitTry++; | |
232 | ||
233 | if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { | |
234 | puts ("\nARP Retry count exceeded; starting again\n"); | |
235 | NetArpWaitTry = 0; | |
236 | NetStartAgain(); | |
237 | } else { | |
238 | NetArpWaitTimerStart = t; | |
239 | ArpRequest(); | |
240 | } | |
241 | } | |
242 | } | |
243 | ||
2d966958 WD |
244 | /**********************************************************************/ |
245 | /* | |
246 | * Main network processing loop. | |
247 | */ | |
248 | ||
249 | int | |
250 | NetLoop(proto_t protocol) | |
251 | { | |
252 | DECLARE_GLOBAL_DATA_PTR; | |
253 | ||
254 | bd_t *bd = gd->bd; | |
255 | ||
256 | #ifdef CONFIG_NET_MULTI | |
257 | NetRestarted = 0; | |
258 | NetDevExists = 0; | |
259 | #endif | |
260 | ||
73a8b27c WD |
261 | /* XXX problem with bss workaround */ |
262 | NetArpWaitPacketMAC = NULL; | |
263 | NetArpWaitTxPacket = NULL; | |
264 | NetArpWaitPacketIP = 0; | |
265 | NetArpWaitReplyIP = 0; | |
266 | NetArpWaitTxPacket = NULL; | |
267 | NetTxPacket = NULL; | |
268 | ||
2d966958 WD |
269 | if (!NetTxPacket) { |
270 | int i; | |
2d966958 WD |
271 | /* |
272 | * Setup packet buffers, aligned correctly. | |
273 | */ | |
274 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
275 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
276 | for (i = 0; i < PKTBUFSRX; i++) { | |
277 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
278 | } | |
73a8b27c WD |
279 | } |
280 | ||
281 | if (!NetArpWaitTxPacket) { | |
282 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
283 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
284 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
285 | } |
286 | ||
287 | eth_halt(); | |
6e592385 | 288 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 289 | eth_set_current(); |
6e592385 WD |
290 | #endif |
291 | if (eth_init(bd) < 0) | |
292 | return(-1); | |
2d966958 WD |
293 | |
294 | restart: | |
295 | #ifdef CONFIG_NET_MULTI | |
296 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
297 | #else | |
298 | memcpy (NetOurEther, bd->bi_enetaddr, 6); | |
299 | #endif | |
300 | ||
301 | NetState = NETLOOP_CONTINUE; | |
302 | ||
303 | /* | |
304 | * Start the ball rolling with the given start function. From | |
305 | * here on, this code is a state machine driven by received | |
306 | * packets and timer events. | |
307 | */ | |
308 | ||
309 | switch (protocol) { | |
cbd8a35c WD |
310 | #if (CONFIG_COMMANDS & CFG_CMD_NFS) |
311 | case NFS: | |
312 | #endif | |
73a8b27c WD |
313 | #if (CONFIG_COMMANDS & CFG_CMD_PING) |
314 | case PING: | |
315 | #endif | |
68ceb29e | 316 | case NETCONS: |
2d966958 WD |
317 | case TFTP: |
318 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); | |
2d966958 WD |
319 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); |
320 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
a3d991bd WD |
321 | NetOurVLAN = getenv_VLAN("vlan"); |
322 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
73a8b27c WD |
323 | |
324 | switch (protocol) { | |
cbd8a35c WD |
325 | #if (CONFIG_COMMANDS & CFG_CMD_NFS) |
326 | case NFS: | |
327 | #endif | |
68ceb29e | 328 | case NETCONS: |
73a8b27c WD |
329 | case TFTP: |
330 | NetServerIP = getenv_IPaddr ("serverip"); | |
331 | break; | |
332 | #if (CONFIG_COMMANDS & CFG_CMD_PING) | |
333 | case PING: | |
334 | /* nothing */ | |
335 | break; | |
336 | #endif | |
337 | default: | |
338 | break; | |
339 | } | |
340 | ||
2d966958 WD |
341 | break; |
342 | case BOOTP: | |
343 | case RARP: | |
344 | /* | |
8bde7f77 WD |
345 | * initialize our IP addr to 0 in order to accept ANY |
346 | * IP addr assigned to us by the BOOTP / RARP server | |
2d966958 WD |
347 | */ |
348 | NetOurIP = 0; | |
3d3befa7 | 349 | NetServerIP = getenv_IPaddr ("serverip"); |
a3d991bd WD |
350 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ |
351 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
352 | case CDP: | |
353 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ | |
354 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
2d966958 WD |
355 | break; |
356 | default: | |
357 | break; | |
358 | } | |
359 | ||
360 | switch (net_check_prereq (protocol)) { | |
361 | case 1: | |
362 | /* network not configured */ | |
1d0350ed | 363 | return (-1); |
2d966958 WD |
364 | |
365 | #ifdef CONFIG_NET_MULTI | |
366 | case 2: | |
367 | /* network device not configured */ | |
368 | break; | |
369 | #endif /* CONFIG_NET_MULTI */ | |
370 | ||
371 | case 0: | |
372 | #ifdef CONFIG_NET_MULTI | |
373 | NetDevExists = 1; | |
374 | #endif | |
375 | switch (protocol) { | |
376 | case TFTP: | |
377 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 378 | TftpStart(); |
2d966958 WD |
379 | break; |
380 | ||
381 | #if (CONFIG_COMMANDS & CFG_CMD_DHCP) | |
382 | case DHCP: | |
383 | /* Start with a clean slate... */ | |
d407bf52 | 384 | BootpTry = 0; |
2d966958 | 385 | NetOurIP = 0; |
3d3befa7 | 386 | NetServerIP = getenv_IPaddr ("serverip"); |
2d966958 WD |
387 | DhcpRequest(); /* Basically same as BOOTP */ |
388 | break; | |
389 | #endif /* CFG_CMD_DHCP */ | |
390 | ||
391 | case BOOTP: | |
392 | BootpTry = 0; | |
393 | BootpRequest (); | |
394 | break; | |
395 | ||
396 | case RARP: | |
397 | RarpTry = 0; | |
398 | RarpRequest (); | |
399 | break; | |
73a8b27c WD |
400 | #if (CONFIG_COMMANDS & CFG_CMD_PING) |
401 | case PING: | |
402 | PingStart(); | |
403 | break; | |
cbd8a35c WD |
404 | #endif |
405 | #if (CONFIG_COMMANDS & CFG_CMD_NFS) | |
406 | case NFS: | |
407 | NfsStart(); | |
408 | break; | |
a3d991bd WD |
409 | #endif |
410 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) | |
411 | case CDP: | |
412 | CDPStart(); | |
413 | break; | |
68ceb29e WD |
414 | #endif |
415 | #ifdef CONFIG_NETCONSOLE | |
416 | case NETCONS: | |
417 | NcStart(); | |
418 | break; | |
73a8b27c | 419 | #endif |
2d966958 WD |
420 | default: |
421 | break; | |
422 | } | |
423 | ||
424 | NetBootFileXferSize = 0; | |
425 | break; | |
426 | } | |
427 | ||
fc3e2165 WD |
428 | #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) |
429 | #if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) | |
430 | /* | |
42d1f039 | 431 | * Echo the inverted link state to the fault LED. |
fc3e2165 WD |
432 | */ |
433 | if(miiphy_link(CFG_FAULT_MII_ADDR)) { | |
434 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); | |
435 | } else { | |
436 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
437 | } | |
438 | #endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ | |
439 | #endif /* CONFIG_MII, ... */ | |
2d966958 WD |
440 | |
441 | /* | |
442 | * Main packet reception loop. Loop receiving packets until | |
443 | * someone sets `NetQuit'. | |
444 | */ | |
445 | for (;;) { | |
446 | WATCHDOG_RESET(); | |
447 | #ifdef CONFIG_SHOW_ACTIVITY | |
448 | { | |
449 | extern void show_activity(int arg); | |
450 | show_activity(1); | |
451 | } | |
452 | #endif | |
453 | /* | |
454 | * Check the ethernet for a new packet. The ethernet | |
455 | * receive routine will process it. | |
456 | */ | |
457 | eth_rx(); | |
458 | ||
459 | /* | |
460 | * Abort if ctrl-c was pressed. | |
461 | */ | |
462 | if (ctrlc()) { | |
8bde7f77 | 463 | eth_halt(); |
4b9206ed | 464 | puts ("\nAbort\n"); |
1d0350ed | 465 | return (-1); |
2d966958 WD |
466 | } |
467 | ||
73a8b27c | 468 | ArpTimeoutCheck(); |
2d966958 WD |
469 | |
470 | /* | |
471 | * Check for a timeout, and run the timeout handler | |
472 | * if we have one. | |
473 | */ | |
e0ac62d7 | 474 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
475 | thand_f *x; |
476 | ||
fc3e2165 WD |
477 | #if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) |
478 | #if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) | |
479 | /* | |
42d1f039 | 480 | * Echo the inverted link state to the fault LED. |
fc3e2165 WD |
481 | */ |
482 | if(miiphy_link(CFG_FAULT_MII_ADDR)) { | |
483 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); | |
484 | } else { | |
485 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
486 | } | |
487 | #endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ | |
488 | #endif /* CONFIG_MII, ... */ | |
2d966958 WD |
489 | x = timeHandler; |
490 | timeHandler = (thand_f *)0; | |
491 | (*x)(); | |
492 | } | |
493 | ||
494 | ||
495 | switch (NetState) { | |
496 | ||
497 | case NETLOOP_RESTART: | |
498 | #ifdef CONFIG_NET_MULTI | |
499 | NetRestarted = 1; | |
500 | #endif | |
501 | goto restart; | |
502 | ||
503 | case NETLOOP_SUCCESS: | |
504 | if (NetBootFileXferSize > 0) { | |
505 | char buf[10]; | |
506 | printf("Bytes transferred = %ld (%lx hex)\n", | |
507 | NetBootFileXferSize, | |
508 | NetBootFileXferSize); | |
509 | sprintf(buf, "%lx", NetBootFileXferSize); | |
510 | setenv("filesize", buf); | |
a3d991bd WD |
511 | |
512 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
513 | setenv("fileaddr", buf); | |
2d966958 WD |
514 | } |
515 | eth_halt(); | |
516 | return NetBootFileXferSize; | |
517 | ||
518 | case NETLOOP_FAIL: | |
1d0350ed | 519 | return (-1); |
2d966958 WD |
520 | } |
521 | } | |
522 | } | |
523 | ||
524 | /**********************************************************************/ | |
525 | ||
526 | static void | |
527 | startAgainTimeout(void) | |
528 | { | |
529 | NetState = NETLOOP_RESTART; | |
530 | } | |
531 | ||
532 | static void | |
533 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
534 | { | |
535 | /* Totally ignore the packet */ | |
536 | } | |
537 | ||
6e592385 | 538 | void NetStartAgain (void) |
2d966958 | 539 | { |
6e592385 | 540 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 541 | DECLARE_GLOBAL_DATA_PTR; |
6e592385 WD |
542 | #endif |
543 | char *nretry; | |
544 | int noretry = 0, once = 0; | |
a3d991bd | 545 | |
6e592385 WD |
546 | if ((nretry = getenv ("netretry")) != NULL) { |
547 | noretry = (strcmp (nretry, "no") == 0); | |
548 | once = (strcmp (nretry, "once") == 0); | |
549 | } | |
550 | if (noretry) { | |
551 | eth_halt (); | |
a3d991bd WD |
552 | NetState = NETLOOP_FAIL; |
553 | return; | |
554 | } | |
2d966958 | 555 | #ifndef CONFIG_NET_MULTI |
6e592385 WD |
556 | NetSetTimeout (10 * CFG_HZ, startAgainTimeout); |
557 | NetSetHandler (startAgainHandler); | |
558 | #else /* !CONFIG_NET_MULTI*/ | |
559 | eth_halt (); | |
560 | eth_try_another (!NetRestarted); | |
561 | eth_init (gd->bd); | |
562 | if (NetRestartWrap) { | |
2d966958 | 563 | NetRestartWrap = 0; |
6e592385 WD |
564 | if (NetDevExists && !once) { |
565 | NetSetTimeout (10 * CFG_HZ, startAgainTimeout); | |
566 | NetSetHandler (startAgainHandler); | |
567 | } else { | |
2d966958 WD |
568 | NetState = NETLOOP_FAIL; |
569 | } | |
6e592385 | 570 | } else { |
2d966958 WD |
571 | NetState = NETLOOP_RESTART; |
572 | } | |
6e592385 | 573 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
574 | } |
575 | ||
576 | /**********************************************************************/ | |
577 | /* | |
578 | * Miscelaneous bits. | |
579 | */ | |
580 | ||
581 | void | |
582 | NetSetHandler(rxhand_f * f) | |
583 | { | |
584 | packetHandler = f; | |
585 | } | |
586 | ||
587 | ||
588 | void | |
3e01d75f | 589 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
590 | { |
591 | if (iv == 0) { | |
592 | timeHandler = (thand_f *)0; | |
593 | } else { | |
594 | timeHandler = f; | |
e0ac62d7 WD |
595 | timeStart = get_timer(0); |
596 | timeDelta = iv; | |
2d966958 WD |
597 | } |
598 | } | |
599 | ||
600 | ||
601 | void | |
602 | NetSendPacket(volatile uchar * pkt, int len) | |
603 | { | |
604 | (void) eth_send(pkt, len); | |
605 | } | |
606 | ||
73a8b27c WD |
607 | int |
608 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
609 | { | |
a3d991bd WD |
610 | uchar *pkt; |
611 | ||
73a8b27c WD |
612 | /* convert to new style broadcast */ |
613 | if (dest == 0) | |
614 | dest = 0xFFFFFFFF; | |
615 | ||
616 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
617 | if (dest == 0xFFFFFFFF) | |
618 | ether = NetBcastAddr; | |
619 | ||
620 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
621 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
622 | ||
623 | #ifdef ET_DEBUG | |
624 | printf("sending ARP for %08lx\n", dest); | |
625 | #endif | |
73a8b27c WD |
626 | NetArpWaitPacketIP = dest; |
627 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
628 | |
629 | pkt = NetArpWaitTxPacket; | |
630 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
631 | ||
632 | NetSetIP (pkt, dest, dport, sport, len); | |
633 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
634 | |
635 | /* size of the waiting packet */ | |
a3d991bd | 636 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
637 | |
638 | /* and do the ARP request */ | |
639 | NetArpWaitTry = 1; | |
640 | NetArpWaitTimerStart = get_timer(0); | |
641 | ArpRequest(); | |
642 | return 1; /* waiting */ | |
643 | } | |
644 | ||
645 | #ifdef ET_DEBUG | |
646 | printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n", | |
6e592385 | 647 | dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]); |
73a8b27c WD |
648 | #endif |
649 | ||
a3d991bd WD |
650 | pkt = (uchar *)NetTxPacket; |
651 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
652 | NetSetIP (pkt, dest, dport, sport, len); | |
653 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 654 | |
6e592385 | 655 | return 0; /* transmitted */ |
73a8b27c WD |
656 | } |
657 | ||
658 | #if (CONFIG_COMMANDS & CFG_CMD_PING) | |
659 | static ushort PingSeqNo; | |
660 | ||
661 | int PingSend(void) | |
662 | { | |
663 | static uchar mac[6]; | |
664 | volatile IP_t *ip; | |
665 | volatile ushort *s; | |
a3d991bd | 666 | uchar *pkt; |
73a8b27c WD |
667 | |
668 | /* XXX always send arp request */ | |
669 | ||
670 | memcpy(mac, NetEtherNullAddr, 6); | |
671 | ||
672 | #ifdef ET_DEBUG | |
673 | printf("sending ARP for %08lx\n", NetPingIP); | |
674 | #endif | |
675 | ||
676 | NetArpWaitPacketIP = NetPingIP; | |
677 | NetArpWaitPacketMAC = mac; | |
678 | ||
a3d991bd WD |
679 | pkt = NetArpWaitTxPacket; |
680 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 681 | |
a3d991bd | 682 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
683 | |
684 | /* | |
685 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
686 | */ | |
687 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
688 | ip->ip_tos = 0; | |
689 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
690 | ip->ip_id = htons(NetIPID++); | |
691 | ip->ip_off = htons(0x4000); /* No fragmentation */ | |
692 | ip->ip_ttl = 255; | |
693 | ip->ip_p = 0x01; /* ICMP */ | |
694 | ip->ip_sum = 0; | |
695 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
696 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
697 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
698 | ||
699 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
700 | s[0] = htons(0x0800); /* echo-request, code */ | |
701 | s[1] = 0; /* checksum */ | |
702 | s[2] = 0; /* identifier */ | |
703 | s[3] = htons(PingSeqNo++); /* sequence number */ | |
704 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
705 | ||
706 | /* size of the waiting packet */ | |
a3d991bd | 707 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
708 | |
709 | /* and do the ARP request */ | |
710 | NetArpWaitTry = 1; | |
711 | NetArpWaitTimerStart = get_timer(0); | |
712 | ArpRequest(); | |
713 | return 1; /* waiting */ | |
714 | } | |
715 | ||
716 | static void | |
717 | PingTimeout (void) | |
718 | { | |
719 | eth_halt(); | |
720 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
721 | } | |
2d966958 | 722 | |
73a8b27c WD |
723 | static void |
724 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
725 | { | |
726 | IPaddr_t tmp; | |
727 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
728 | ||
729 | tmp = NetReadIP((void *)&ip->ip_src); | |
730 | if (tmp != NetPingIP) | |
731 | return; | |
732 | ||
733 | NetState = NETLOOP_SUCCESS; | |
734 | } | |
735 | ||
736 | static void PingStart(void) | |
737 | { | |
a3d991bd WD |
738 | #if defined(CONFIG_NET_MULTI) |
739 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 740 | #endif /* CONFIG_NET_MULTI */ |
73a8b27c WD |
741 | NetSetTimeout (10 * CFG_HZ, PingTimeout); |
742 | NetSetHandler (PingHandler); | |
743 | ||
744 | PingSend(); | |
745 | } | |
6e592385 | 746 | #endif /* CFG_CMD_PING */ |
2d966958 | 747 | |
a3d991bd WD |
748 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) |
749 | ||
750 | #define CDP_DEVICE_ID_TLV 0x0001 | |
751 | #define CDP_ADDRESS_TLV 0x0002 | |
752 | #define CDP_PORT_ID_TLV 0x0003 | |
753 | #define CDP_CAPABILITIES_TLV 0x0004 | |
754 | #define CDP_VERSION_TLV 0x0005 | |
755 | #define CDP_PLATFORM_TLV 0x0006 | |
756 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
757 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
758 | #define CDP_TRIGGER_TLV 0x000f | |
759 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
760 | #define CDP_SYSNAME_TLV 0x0014 | |
761 | #define CDP_SYSOBJECT_TLV 0x0015 | |
762 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
763 | ||
764 | #define CDP_TIMEOUT (CFG_HZ/4) /* one packet every 250ms */ | |
765 | ||
766 | static int CDPSeq; | |
767 | static int CDPOK; | |
768 | ||
769 | ushort CDPNativeVLAN; | |
770 | ushort CDPApplianceVLAN; | |
771 | ||
772 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
773 | ||
774 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
775 | { | |
776 | ushort csum; | |
777 | int odd; | |
778 | ulong result = 0; | |
779 | ushort leftover; | |
780 | ||
781 | if (len > 0) { | |
782 | odd = 1 & (ulong)buff; | |
783 | if (odd) { | |
784 | result = *buff << 8; | |
785 | len--; | |
786 | buff++; | |
787 | } | |
788 | while (len > 1) { | |
789 | result += *((const ushort *)buff)++; | |
790 | if (result & 0x80000000) | |
791 | result = (result & 0xFFFF) + (result >> 16); | |
792 | len -= 2; | |
793 | } | |
794 | if (len) { | |
795 | leftover = (signed short)(*(const signed char *)buff); | |
796 | /* * XXX CISCO SUCKS big time! (and blows too) */ | |
797 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); | |
798 | } | |
799 | while (result >> 16) | |
800 | result = (result & 0xFFFF) + (result >> 16); | |
801 | ||
802 | if (odd) | |
803 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
804 | } | |
805 | ||
806 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
807 | result = (result & 0xffff) + (result >> 16); | |
808 | /* add up 16-bit and 2-bit for 16+c bit */ | |
809 | result = (result & 0xffff) + (result >> 16); | |
810 | /* add up carry.. */ | |
811 | result = (result & 0xffff) + (result >> 16); | |
812 | ||
813 | /* negate */ | |
814 | csum = ~(ushort)result; | |
815 | ||
816 | /* run time endian detection */ | |
817 | if (csum != htons(csum)) /* little endian */ | |
818 | csum = htons(csum); | |
819 | ||
820 | return csum; | |
821 | } | |
822 | ||
823 | int CDPSendTrigger(void) | |
824 | { | |
825 | volatile uchar *pkt; | |
826 | volatile ushort *s; | |
827 | volatile ushort *cp; | |
828 | Ethernet_t *et; | |
a3d991bd WD |
829 | int len; |
830 | ushort chksum; | |
6e592385 WD |
831 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
832 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
833 | char buf[32]; | |
834 | #endif | |
a3d991bd WD |
835 | |
836 | pkt = NetTxPacket; | |
837 | et = (Ethernet_t *)pkt; | |
838 | ||
839 | /* NOTE: trigger sent not on any VLAN */ | |
840 | ||
841 | /* form ethernet header */ | |
842 | memcpy(et->et_dest, NetCDPAddr, 6); | |
843 | memcpy(et->et_src, NetOurEther, 6); | |
844 | ||
845 | pkt += ETHER_HDR_SIZE; | |
846 | ||
847 | /* SNAP header */ | |
848 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
849 | pkt += sizeof(CDP_SNAP_hdr); | |
850 | ||
851 | /* CDP header */ | |
852 | *pkt++ = 0x02; /* CDP version 2 */ | |
853 | *pkt++ = 180; /* TTL */ | |
854 | s = (volatile ushort *)pkt; | |
855 | cp = s; | |
856 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
857 | ||
858 | /* CDP fields */ | |
859 | #ifdef CONFIG_CDP_DEVICE_ID | |
860 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
861 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
862 | memset(buf, 0, sizeof(buf)); | |
863 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X", | |
864 | NetOurEther[0] & 0xff, NetOurEther[1] & 0xff, | |
865 | NetOurEther[2] & 0xff, NetOurEther[3] & 0xff, | |
866 | NetOurEther[4] & 0xff, NetOurEther[5] & 0xff); | |
867 | memcpy((uchar *)s, buf, 16); | |
868 | s += 16 / 2; | |
869 | #endif | |
870 | ||
871 | #ifdef CONFIG_CDP_PORT_ID | |
872 | *s++ = htons(CDP_PORT_ID_TLV); | |
873 | memset(buf, 0, sizeof(buf)); | |
874 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
875 | len = strlen(buf); | |
876 | if (len & 1) /* make it even */ | |
877 | len++; | |
878 | *s++ = htons(len + 4); | |
879 | memcpy((uchar *)s, buf, len); | |
880 | s += len / 2; | |
881 | #endif | |
882 | ||
883 | #ifdef CONFIG_CDP_CAPABILITIES | |
884 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
885 | *s++ = htons(8); | |
886 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
887 | s += 2; | |
888 | #endif | |
889 | ||
890 | #ifdef CONFIG_CDP_VERSION | |
891 | *s++ = htons(CDP_VERSION_TLV); | |
892 | memset(buf, 0, sizeof(buf)); | |
893 | strcpy(buf, CONFIG_CDP_VERSION); | |
894 | len = strlen(buf); | |
895 | if (len & 1) /* make it even */ | |
896 | len++; | |
897 | *s++ = htons(len + 4); | |
898 | memcpy((uchar *)s, buf, len); | |
899 | s += len / 2; | |
900 | #endif | |
901 | ||
902 | #ifdef CONFIG_CDP_PLATFORM | |
903 | *s++ = htons(CDP_PLATFORM_TLV); | |
904 | memset(buf, 0, sizeof(buf)); | |
905 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
906 | len = strlen(buf); | |
907 | if (len & 1) /* make it even */ | |
908 | len++; | |
909 | *s++ = htons(len + 4); | |
910 | memcpy((uchar *)s, buf, len); | |
911 | s += len / 2; | |
912 | #endif | |
913 | ||
914 | #ifdef CONFIG_CDP_TRIGGER | |
915 | *s++ = htons(CDP_TRIGGER_TLV); | |
916 | *s++ = htons(8); | |
917 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
918 | s += 2; | |
919 | #endif | |
920 | ||
921 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
922 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
923 | *s++ = htons(6); | |
924 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
925 | #endif | |
926 | ||
927 | /* length of ethernet packet */ | |
928 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
929 | et->et_protlen = htons(len); | |
930 | ||
931 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
932 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
933 | if (chksum == 0) | |
934 | chksum = 0xFFFF; | |
935 | *cp = htons(chksum); | |
936 | ||
937 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
938 | return 0; | |
939 | } | |
940 | ||
941 | static void | |
942 | CDPTimeout (void) | |
943 | { | |
944 | CDPSeq++; | |
945 | ||
946 | if (CDPSeq < 3) { | |
947 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
948 | CDPSendTrigger(); | |
949 | return; | |
950 | } | |
951 | ||
952 | /* if not OK try again */ | |
953 | if (!CDPOK) | |
954 | NetStartAgain(); | |
955 | else | |
956 | NetState = NETLOOP_SUCCESS; | |
957 | } | |
958 | ||
959 | static void | |
960 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
961 | { | |
962 | /* nothing */ | |
963 | } | |
964 | ||
965 | static void | |
966 | CDPHandler(const uchar * pkt, unsigned len) | |
967 | { | |
968 | const uchar *t; | |
969 | const ushort *ss; | |
970 | ushort type, tlen; | |
971 | uchar applid; | |
972 | ushort vlan, nvlan; | |
973 | ||
974 | /* minimum size? */ | |
975 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
976 | goto pkt_short; | |
977 | ||
978 | /* check for valid CDP SNAP header */ | |
979 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
980 | return; | |
981 | ||
982 | pkt += sizeof(CDP_SNAP_hdr); | |
983 | len -= sizeof(CDP_SNAP_hdr); | |
984 | ||
985 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
986 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
987 | return; | |
988 | ||
989 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
990 | if (pkt[0] != 0x02) | |
991 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
992 | pkt[0] & 0xff); | |
993 | ||
994 | if (CDP_compute_csum(pkt, len) != 0) | |
995 | return; | |
996 | ||
997 | pkt += 4; | |
998 | len -= 4; | |
999 | ||
1000 | vlan = htons(-1); | |
1001 | nvlan = htons(-1); | |
1002 | while (len > 0) { | |
1003 | if (len < 4) | |
1004 | goto pkt_short; | |
1005 | ||
1006 | ss = (const ushort *)pkt; | |
1007 | type = ntohs(ss[0]); | |
1008 | tlen = ntohs(ss[1]); | |
1009 | if (tlen > len) { | |
1010 | goto pkt_short; | |
1011 | } | |
1012 | ||
1013 | pkt += tlen; | |
1014 | len -= tlen; | |
1015 | ||
1016 | ss += 2; /* point ss to the data of the TLV */ | |
1017 | tlen -= 4; | |
1018 | ||
1019 | switch (type) { | |
1020 | case CDP_DEVICE_ID_TLV: | |
1021 | break; | |
1022 | case CDP_ADDRESS_TLV: | |
1023 | break; | |
1024 | case CDP_PORT_ID_TLV: | |
1025 | break; | |
1026 | case CDP_CAPABILITIES_TLV: | |
1027 | break; | |
1028 | case CDP_VERSION_TLV: | |
1029 | break; | |
1030 | case CDP_PLATFORM_TLV: | |
1031 | break; | |
1032 | case CDP_NATIVE_VLAN_TLV: | |
1033 | nvlan = *ss; | |
1034 | break; | |
1035 | case CDP_APPLIANCE_VLAN_TLV: | |
1036 | t = (const uchar *)ss; | |
1037 | while (tlen > 0) { | |
1038 | if (tlen < 3) | |
1039 | goto pkt_short; | |
1040 | ||
1041 | applid = t[0]; | |
1042 | ss = (const ushort *)(t + 1); | |
1043 | ||
1044 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1045 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1046 | vlan = *ss; | |
1047 | #else | |
1048 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1049 | #endif | |
1050 | t += 3; tlen -= 3; | |
1051 | } | |
1052 | break; | |
1053 | case CDP_TRIGGER_TLV: | |
1054 | break; | |
1055 | case CDP_POWER_CONSUMPTION_TLV: | |
1056 | break; | |
1057 | case CDP_SYSNAME_TLV: | |
1058 | break; | |
1059 | case CDP_SYSOBJECT_TLV: | |
1060 | break; | |
1061 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1062 | break; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | CDPApplianceVLAN = vlan; | |
1067 | CDPNativeVLAN = nvlan; | |
1068 | ||
1069 | CDPOK = 1; | |
1070 | return; | |
1071 | ||
1072 | pkt_short: | |
1073 | printf("** CDP packet is too short\n"); | |
1074 | return; | |
1075 | } | |
1076 | ||
1077 | static void CDPStart(void) | |
1078 | { | |
1079 | #if defined(CONFIG_NET_MULTI) | |
1080 | printf ("Using %s device\n", eth_get_name()); | |
1081 | #endif | |
1082 | CDPSeq = 0; | |
1083 | CDPOK = 0; | |
1084 | ||
1085 | CDPNativeVLAN = htons(-1); | |
1086 | CDPApplianceVLAN = htons(-1); | |
1087 | ||
1088 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1089 | NetSetHandler (CDPDummyHandler); | |
1090 | ||
1091 | CDPSendTrigger(); | |
1092 | } | |
6e592385 | 1093 | #endif /* CFG_CMD_CDP */ |
a3d991bd WD |
1094 | |
1095 | ||
2d966958 | 1096 | void |
a3d991bd | 1097 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1098 | { |
1099 | Ethernet_t *et; | |
1100 | IP_t *ip; | |
1101 | ARP_t *arp; | |
1102 | IPaddr_t tmp; | |
1103 | int x; | |
a3d991bd WD |
1104 | uchar *pkt; |
1105 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) | |
1106 | int iscdp; | |
1107 | #endif | |
1108 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1109 | ||
1110 | #ifdef ET_DEBUG | |
1111 | printf("packet received\n"); | |
1112 | #endif | |
2d966958 | 1113 | |
a3d991bd | 1114 | NetRxPkt = inpkt; |
2d966958 | 1115 | NetRxPktLen = len; |
a3d991bd WD |
1116 | et = (Ethernet_t *)inpkt; |
1117 | ||
1118 | /* too small packet? */ | |
1119 | if (len < ETHER_HDR_SIZE) | |
1120 | return; | |
1121 | ||
1122 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) | |
1123 | /* keep track if packet is CDP */ | |
1124 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1125 | #endif | |
1126 | ||
1127 | myvlanid = ntohs(NetOurVLAN); | |
1128 | if (myvlanid == (ushort)-1) | |
1129 | myvlanid = VLAN_NONE; | |
1130 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1131 | if (mynvlanid == (ushort)-1) | |
1132 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1133 | |
1134 | x = ntohs(et->et_protlen); | |
1135 | ||
a3d991bd WD |
1136 | #ifdef ET_DEBUG |
1137 | printf("packet received\n"); | |
1138 | #endif | |
1139 | ||
2d966958 WD |
1140 | if (x < 1514) { |
1141 | /* | |
1142 | * Got a 802 packet. Check the other protocol field. | |
1143 | */ | |
1144 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1145 | |
1146 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1147 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1148 | |
1149 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1150 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1151 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1152 | |
1153 | } else { /* VLAN packet */ | |
1154 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1155 | ||
1156 | #ifdef ET_DEBUG | |
1157 | printf("VLAN packet received\n"); | |
1158 | #endif | |
1159 | /* too small packet? */ | |
1160 | if (len < VLAN_ETHER_HDR_SIZE) | |
1161 | return; | |
1162 | ||
1163 | /* if no VLAN active */ | |
1164 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
1165 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) | |
1166 | && iscdp == 0 | |
1167 | #endif | |
1168 | ) | |
1169 | return; | |
1170 | ||
1171 | cti = ntohs(vet->vet_tag); | |
1172 | vlanid = cti & VLAN_IDMASK; | |
1173 | x = ntohs(vet->vet_type); | |
1174 | ||
1175 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1176 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1177 | } |
1178 | ||
1179 | #ifdef ET_DEBUG | |
1180 | printf("Receive from protocol 0x%x\n", x); | |
1181 | #endif | |
1182 | ||
a3d991bd WD |
1183 | #if (CONFIG_COMMANDS & CFG_CMD_CDP) |
1184 | if (iscdp) { | |
1185 | CDPHandler((uchar *)ip, len); | |
1186 | return; | |
1187 | } | |
1188 | #endif | |
1189 | ||
1190 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1191 | if (vlanid == VLAN_NONE) | |
1192 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1193 | /* not matched? */ | |
1194 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1195 | return; | |
1196 | } | |
1197 | ||
2d966958 WD |
1198 | switch (x) { |
1199 | ||
1200 | case PROT_ARP: | |
1201 | /* | |
1202 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1203 | * - REQUEST packets will be answered by sending our |
1204 | * IP address - if we know it. | |
1205 | * - REPLY packates are expected only after we asked | |
1206 | * for the TFTP server's or the gateway's ethernet | |
1207 | * address; so if we receive such a packet, we set | |
1208 | * the server ethernet address | |
2d966958 WD |
1209 | */ |
1210 | #ifdef ET_DEBUG | |
4b9206ed | 1211 | puts ("Got ARP\n"); |
2d966958 WD |
1212 | #endif |
1213 | arp = (ARP_t *)ip; | |
1214 | if (len < ARP_HDR_SIZE) { | |
1215 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1216 | return; | |
1217 | } | |
1218 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1219 | return; | |
1220 | } | |
1221 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1222 | return; | |
1223 | } | |
1224 | if (arp->ar_hln != 6) { | |
1225 | return; | |
1226 | } | |
1227 | if (arp->ar_pln != 4) { | |
1228 | return; | |
1229 | } | |
1230 | ||
1231 | if (NetOurIP == 0) { | |
1232 | return; | |
1233 | } | |
1234 | ||
1235 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1236 | return; | |
1237 | } | |
1238 | ||
1239 | switch (ntohs(arp->ar_op)) { | |
1240 | case ARPOP_REQUEST: /* reply with our IP address */ | |
1241 | #ifdef ET_DEBUG | |
4b9206ed | 1242 | puts ("Got ARP REQUEST, return our IP\n"); |
2d966958 | 1243 | #endif |
a3d991bd WD |
1244 | pkt = (uchar *)et; |
1245 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1246 | arp->ar_op = htons(ARPOP_REPLY); |
1247 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1248 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1249 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1250 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1251 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1252 | return; |
73a8b27c WD |
1253 | |
1254 | case ARPOP_REPLY: /* arp reply */ | |
1255 | /* are we waiting for a reply */ | |
1256 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1257 | break; | |
2d966958 | 1258 | #ifdef ET_DEBUG |
73a8b27c WD |
1259 | printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n", |
1260 | arp->ar_data[0], arp->ar_data[1], | |
1261 | arp->ar_data[2], arp->ar_data[3], | |
1262 | arp->ar_data[4], arp->ar_data[5]); | |
2d966958 | 1263 | #endif |
73a8b27c WD |
1264 | |
1265 | tmp = NetReadIP(&arp->ar_data[6]); | |
1266 | ||
1267 | /* matched waiting packet's address */ | |
1268 | if (tmp == NetArpWaitReplyIP) { | |
1269 | #ifdef ET_DEBUG | |
4b9206ed | 1270 | puts ("Got it\n"); |
73a8b27c WD |
1271 | #endif |
1272 | /* save address for later use */ | |
1273 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1274 | ||
68ceb29e WD |
1275 | #ifdef CONFIG_NETCONSOLE |
1276 | (*packetHandler)(0,0,0,0); | |
1277 | #endif | |
73a8b27c WD |
1278 | /* modify header, and transmit it */ |
1279 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1280 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1281 | ||
1282 | /* no arp request pending now */ | |
1283 | NetArpWaitPacketIP = 0; | |
1284 | NetArpWaitTxPacketSize = 0; | |
1285 | NetArpWaitPacketMAC = NULL; | |
1286 | ||
1287 | } | |
2d966958 WD |
1288 | return; |
1289 | default: | |
1290 | #ifdef ET_DEBUG | |
1291 | printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); | |
1292 | #endif | |
1293 | return; | |
1294 | } | |
1295 | ||
1296 | case PROT_RARP: | |
1297 | #ifdef ET_DEBUG | |
4b9206ed | 1298 | puts ("Got RARP\n"); |
2d966958 WD |
1299 | #endif |
1300 | arp = (ARP_t *)ip; | |
1301 | if (len < ARP_HDR_SIZE) { | |
1302 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1303 | return; | |
1304 | } | |
1305 | ||
1306 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1307 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1308 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1309 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1310 | ||
4b9206ed | 1311 | puts ("invalid RARP header\n"); |
2d966958 WD |
1312 | } else { |
1313 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1314 | if (NetServerIP == 0) |
1315 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1316 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1317 | ||
1318 | (*packetHandler)(0,0,0,0); | |
1319 | } | |
1320 | break; | |
1321 | ||
1322 | case PROT_IP: | |
1323 | #ifdef ET_DEBUG | |
4b9206ed | 1324 | puts ("Got IP\n"); |
2d966958 WD |
1325 | #endif |
1326 | if (len < IP_HDR_SIZE) { | |
1327 | debug ("len bad %d < %d\n", len, IP_HDR_SIZE); | |
1328 | return; | |
1329 | } | |
1330 | if (len < ntohs(ip->ip_len)) { | |
1331 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1332 | return; | |
1333 | } | |
1334 | len = ntohs(ip->ip_len); | |
1335 | #ifdef ET_DEBUG | |
1336 | printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); | |
1337 | #endif | |
1338 | if ((ip->ip_hl_v & 0xf0) != 0x40) { | |
1339 | return; | |
1340 | } | |
1341 | if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */ | |
1342 | return; | |
1343 | } | |
1344 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { | |
4b9206ed | 1345 | puts ("checksum bad\n"); |
2d966958 WD |
1346 | return; |
1347 | } | |
1348 | tmp = NetReadIP(&ip->ip_dst); | |
1349 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
1350 | return; | |
1351 | } | |
1352 | /* | |
1353 | * watch for ICMP host redirects | |
1354 | * | |
8bde7f77 WD |
1355 | * There is no real handler code (yet). We just watch |
1356 | * for ICMP host redirect messages. In case anybody | |
1357 | * sees these messages: please contact me | |
1358 | * (wd@denx.de), or - even better - send me the | |
1359 | * necessary fixes :-) | |
2d966958 | 1360 | * |
8bde7f77 WD |
1361 | * Note: in all cases where I have seen this so far |
1362 | * it was a problem with the router configuration, | |
1363 | * for instance when a router was configured in the | |
1364 | * BOOTP reply, but the TFTP server was on the same | |
1365 | * subnet. So this is probably a warning that your | |
1366 | * configuration might be wrong. But I'm not really | |
1367 | * sure if there aren't any other situations. | |
2d966958 WD |
1368 | */ |
1369 | if (ip->ip_p == IPPROTO_ICMP) { | |
1370 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1371 | ||
73a8b27c WD |
1372 | switch (icmph->type) { |
1373 | case ICMP_REDIRECT: | |
2d966958 WD |
1374 | if (icmph->code != ICMP_REDIR_HOST) |
1375 | return; | |
1376 | puts (" ICMP Host Redirect to "); | |
1377 | print_IPaddr(icmph->un.gateway); | |
1378 | putc(' '); | |
73a8b27c WD |
1379 | break; |
1380 | #if (CONFIG_COMMANDS & CFG_CMD_PING) | |
1381 | case ICMP_ECHO_REPLY: | |
1382 | /* | |
1383 | * IP header OK. Pass the packet to the current handler. | |
1384 | */ | |
1385 | /* XXX point to ip packet */ | |
1386 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
1387 | break; | |
1388 | #endif | |
1389 | default: | |
1390 | return; | |
1391 | } | |
2d966958 WD |
1392 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1393 | return; | |
1394 | } | |
1395 | ||
68ceb29e WD |
1396 | #ifdef CONFIG_NETCONSOLE |
1397 | nc_input_packet((uchar *)ip +IP_HDR_SIZE, | |
1398 | ntohs(ip->udp_dst), | |
1399 | ntohs(ip->udp_src), | |
1400 | ntohs(ip->udp_len) - 8); | |
1401 | #endif | |
2d966958 WD |
1402 | /* |
1403 | * IP header OK. Pass the packet to the current handler. | |
1404 | */ | |
1405 | (*packetHandler)((uchar *)ip +IP_HDR_SIZE, | |
1406 | ntohs(ip->udp_dst), | |
1407 | ntohs(ip->udp_src), | |
1408 | ntohs(ip->udp_len) - 8); | |
2d966958 WD |
1409 | break; |
1410 | } | |
1411 | } | |
1412 | ||
1413 | ||
1414 | /**********************************************************************/ | |
1415 | ||
1416 | static int net_check_prereq (proto_t protocol) | |
1417 | { | |
1418 | switch (protocol) { | |
6e592385 | 1419 | /* Fall through */ |
73a8b27c WD |
1420 | #if (CONFIG_COMMANDS & CFG_CMD_PING) |
1421 | case PING: | |
6e592385 WD |
1422 | if (NetPingIP == 0) { |
1423 | puts ("*** ERROR: ping address not given\n"); | |
1424 | return (1); | |
1425 | } | |
1426 | goto common; | |
cbd8a35c WD |
1427 | #endif |
1428 | #if (CONFIG_COMMANDS & CFG_CMD_NFS) | |
1429 | case NFS: | |
73a8b27c | 1430 | #endif |
68ceb29e | 1431 | case NETCONS: |
2d966958 | 1432 | case TFTP: |
6e592385 WD |
1433 | if (NetServerIP == 0) { |
1434 | puts ("*** ERROR: `serverip' not set\n"); | |
1435 | return (1); | |
1436 | } | |
73a8b27c | 1437 | #if (CONFIG_COMMANDS & CFG_CMD_PING) |
6e592385 | 1438 | common: |
73a8b27c WD |
1439 | #endif |
1440 | ||
6e592385 WD |
1441 | if (NetOurIP == 0) { |
1442 | puts ("*** ERROR: `ipaddr' not set\n"); | |
1443 | return (1); | |
1444 | } | |
1445 | /* Fall through */ | |
2d966958 WD |
1446 | |
1447 | case DHCP: | |
1448 | case RARP: | |
1449 | case BOOTP: | |
a3d991bd | 1450 | case CDP: |
6e592385 | 1451 | if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { |
2d966958 | 1452 | #ifdef CONFIG_NET_MULTI |
6e592385 WD |
1453 | extern int eth_get_dev_index (void); |
1454 | int num = eth_get_dev_index (); | |
2d966958 | 1455 | |
6e592385 WD |
1456 | switch (num) { |
1457 | case -1: | |
2d966958 WD |
1458 | puts ("*** ERROR: No ethernet found.\n"); |
1459 | return (1); | |
6e592385 | 1460 | case 0: |
2d966958 WD |
1461 | puts ("*** ERROR: `ethaddr' not set\n"); |
1462 | break; | |
6e592385 | 1463 | default: |
8bde7f77 | 1464 | printf ("*** ERROR: `eth%daddr' not set\n", |
2d966958 WD |
1465 | num); |
1466 | break; | |
6e592385 | 1467 | } |
2d966958 | 1468 | |
6e592385 WD |
1469 | NetStartAgain (); |
1470 | return (2); | |
2d966958 | 1471 | #else |
6e592385 WD |
1472 | puts ("*** ERROR: `ethaddr' not set\n"); |
1473 | return (1); | |
2d966958 | 1474 | #endif |
6e592385 WD |
1475 | } |
1476 | /* Fall through */ | |
1477 | default: | |
1478 | return (0); | |
2d966958 | 1479 | } |
6e592385 | 1480 | return (0); /* OK */ |
2d966958 WD |
1481 | } |
1482 | /**********************************************************************/ | |
1483 | ||
1484 | int | |
1485 | NetCksumOk(uchar * ptr, int len) | |
1486 | { | |
1487 | return !((NetCksum(ptr, len) + 1) & 0xfffe); | |
1488 | } | |
1489 | ||
1490 | ||
1491 | unsigned | |
1492 | NetCksum(uchar * ptr, int len) | |
1493 | { | |
1494 | ulong xsum; | |
1495 | ||
1496 | xsum = 0; | |
1497 | while (len-- > 0) | |
1498 | xsum += *((ushort *)ptr)++; | |
1499 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1500 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1501 | return (xsum & 0xffff); | |
1502 | } | |
1503 | ||
a3d991bd WD |
1504 | int |
1505 | NetEthHdrSize(void) | |
1506 | { | |
1507 | ushort myvlanid; | |
2d966958 | 1508 | |
a3d991bd WD |
1509 | myvlanid = ntohs(NetOurVLAN); |
1510 | if (myvlanid == (ushort)-1) | |
1511 | myvlanid = VLAN_NONE; | |
1512 | ||
1513 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; | |
1514 | } | |
1515 | ||
1516 | int | |
2d966958 WD |
1517 | NetSetEther(volatile uchar * xet, uchar * addr, uint prot) |
1518 | { | |
1519 | Ethernet_t *et = (Ethernet_t *)xet; | |
a3d991bd WD |
1520 | ushort myvlanid; |
1521 | ||
1522 | myvlanid = ntohs(NetOurVLAN); | |
1523 | if (myvlanid == (ushort)-1) | |
1524 | myvlanid = VLAN_NONE; | |
2d966958 WD |
1525 | |
1526 | memcpy (et->et_dest, addr, 6); | |
1527 | memcpy (et->et_src, NetOurEther, 6); | |
a3d991bd | 1528 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
2d966958 | 1529 | et->et_protlen = htons(prot); |
a3d991bd WD |
1530 | return ETHER_HDR_SIZE; |
1531 | } else { | |
1532 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; | |
2d966958 | 1533 | |
a3d991bd WD |
1534 | vet->vet_vlan_type = htons(PROT_VLAN); |
1535 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); | |
1536 | vet->vet_type = htons(prot); | |
1537 | return VLAN_ETHER_HDR_SIZE; | |
1538 | } | |
1539 | } | |
2d966958 WD |
1540 | |
1541 | void | |
1542 | NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) | |
1543 | { | |
1544 | volatile IP_t *ip = (IP_t *)xip; | |
1545 | ||
1546 | /* | |
1547 | * If the data is an odd number of bytes, zero the | |
1548 | * byte after the last byte so that the checksum | |
1549 | * will work. | |
1550 | */ | |
1551 | if (len & 1) | |
1552 | xip[IP_HDR_SIZE + len] = 0; | |
1553 | ||
1554 | /* | |
1555 | * Construct an IP and UDP header. | |
6e592385 | 1556 | * (need to set no fragment bit - XXX) |
2d966958 WD |
1557 | */ |
1558 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
1559 | ip->ip_tos = 0; | |
1560 | ip->ip_len = htons(IP_HDR_SIZE + len); | |
1561 | ip->ip_id = htons(NetIPID++); | |
1562 | ip->ip_off = htons(0x4000); /* No fragmentation */ | |
1563 | ip->ip_ttl = 255; | |
1564 | ip->ip_p = 17; /* UDP */ | |
1565 | ip->ip_sum = 0; | |
1566 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
1567 | NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ | |
1568 | ip->udp_src = htons(sport); | |
1569 | ip->udp_dst = htons(dport); | |
1570 | ip->udp_len = htons(8 + len); | |
1571 | ip->udp_xsum = 0; | |
1572 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
1573 | } | |
1574 | ||
1575 | void copy_filename (uchar *dst, uchar *src, int size) | |
1576 | { | |
1577 | if (*src && (*src == '"')) { | |
1578 | ++src; | |
1579 | --size; | |
1580 | } | |
1581 | ||
1582 | while ((--size > 0) && *src && (*src != '"')) { | |
1583 | *dst++ = *src++; | |
1584 | } | |
1585 | *dst = '\0'; | |
1586 | } | |
1587 | ||
1588 | #endif /* CFG_CMD_NET */ | |
1589 | ||
1590 | void ip_to_string (IPaddr_t x, char *s) | |
1591 | { | |
a3d991bd WD |
1592 | x = ntohl (x); |
1593 | sprintf (s, "%d.%d.%d.%d", | |
1594 | (int) ((x >> 24) & 0xff), | |
1595 | (int) ((x >> 16) & 0xff), | |
1596 | (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) | |
6e592385 | 1597 | ); |
2d966958 WD |
1598 | } |
1599 | ||
73a8b27c | 1600 | IPaddr_t string_to_ip(char *s) |
2d966958 WD |
1601 | { |
1602 | IPaddr_t addr; | |
73a8b27c | 1603 | char *e; |
2d966958 WD |
1604 | int i; |
1605 | ||
73a8b27c WD |
1606 | if (s == NULL) |
1607 | return(0); | |
2d966958 WD |
1608 | |
1609 | for (addr=0, i=0; i<4; ++i) { | |
1610 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
1611 | addr <<= 8; | |
1612 | addr |= (val & 0xFF); | |
1613 | if (s) { | |
1614 | s = (*e) ? e+1 : e; | |
1615 | } | |
1616 | } | |
1617 | ||
1618 | return (htonl(addr)); | |
1619 | } | |
73a8b27c | 1620 | |
a3d991bd WD |
1621 | void VLAN_to_string(ushort x, char *s) |
1622 | { | |
1623 | x = ntohs(x); | |
1624 | ||
1625 | if (x == (ushort)-1) | |
1626 | x = VLAN_NONE; | |
1627 | ||
1628 | if (x == VLAN_NONE) | |
1629 | strcpy(s, "none"); | |
1630 | else | |
1631 | sprintf(s, "%d", x & VLAN_IDMASK); | |
1632 | } | |
1633 | ||
1634 | ushort string_to_VLAN(char *s) | |
1635 | { | |
1636 | ushort id; | |
1637 | ||
1638 | if (s == NULL) | |
b9711de1 | 1639 | return htons(VLAN_NONE); |
a3d991bd WD |
1640 | |
1641 | if (*s < '0' || *s > '9') | |
1642 | id = VLAN_NONE; | |
1643 | else | |
1644 | id = (ushort)simple_strtoul(s, NULL, 10); | |
1645 | ||
b9711de1 | 1646 | return htons(id); |
a3d991bd WD |
1647 | } |
1648 | ||
73a8b27c WD |
1649 | void print_IPaddr (IPaddr_t x) |
1650 | { | |
a3d991bd | 1651 | char tmp[16]; |
73a8b27c | 1652 | |
a3d991bd | 1653 | ip_to_string (x, tmp); |
73a8b27c | 1654 | |
a3d991bd | 1655 | puts (tmp); |
73a8b27c WD |
1656 | } |
1657 | ||
1658 | IPaddr_t getenv_IPaddr (char *var) | |
1659 | { | |
1660 | return (string_to_ip(getenv(var))); | |
1661 | } | |
a3d991bd WD |
1662 | |
1663 | ushort getenv_VLAN(char *var) | |
1664 | { | |
1665 | return (string_to_VLAN(getenv(var))); | |
1666 | } |