]>
Commit | Line | Data |
---|---|---|
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 | * | |
b2f50807 WD |
43 | * Prerequisites: - own ethernet address |
44 | * We want: - IP, Netmask, ServerIP, Gateway IP | |
45 | * - bootfilename, lease time | |
46 | * Next step: - TFTP | |
2d966958 WD |
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 | |
ea287deb WD |
67 | * |
68 | * SNTP: | |
69 | * | |
b2f50807 | 70 | * Prerequisites: - own ethernet address |
ea287deb WD |
71 | * - own IP address |
72 | * We want: - network time | |
73 | * Next step: none | |
2d966958 WD |
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" | |
cbd8a35c | 84 | #include "nfs.h" |
fc3e2165 WD |
85 | #ifdef CONFIG_STATUS_LED |
86 | #include <status_led.h> | |
87 | #include <miiphy.h> | |
88 | #endif | |
643d1ab2 | 89 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
90 | #include "sntp.h" |
91 | #endif | |
561858ee PT |
92 | #if defined(CONFIG_CDP_VERSION) |
93 | #include <timestamp.h> | |
94 | #endif | |
2d966958 | 95 | |
643d1ab2 | 96 | #if defined(CONFIG_CMD_NET) |
2d966958 | 97 | |
d87080b7 WD |
98 | DECLARE_GLOBAL_DATA_PTR; |
99 | ||
40cb90ee | 100 | #ifndef CONFIG_ARP_TIMEOUT |
49f3bdbb | 101 | # define ARP_TIMEOUT 5000UL /* Milliseconds before trying ARP again */ |
40cb90ee | 102 | #else |
49f3bdbb | 103 | # define ARP_TIMEOUT CONFIG_ARP_TIMEOUT |
40cb90ee GL |
104 | #endif |
105 | ||
106 | ||
73a8b27c | 107 | #ifndef CONFIG_NET_RETRY_COUNT |
40cb90ee | 108 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
73a8b27c | 109 | #else |
40cb90ee | 110 | # define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT |
73a8b27c WD |
111 | #endif |
112 | ||
2d966958 WD |
113 | #if 0 |
114 | #define ET_DEBUG | |
115 | #endif | |
116 | ||
117 | /** BOOTP EXTENTIONS **/ | |
118 | ||
119 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
120 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
121 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
1fe80d79 | 122 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 SR |
123 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ |
124 | #endif | |
2d966958 WD |
125 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
126 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
127 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
128 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
129 | ||
53a5c424 DU |
130 | #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ |
131 | IPaddr_t Mcast_addr; | |
132 | #endif | |
133 | ||
2d966958 WD |
134 | /** END OF BOOTP EXTENTIONS **/ |
135 | ||
136 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
137 | uchar NetOurEther[6]; /* Our ethernet address */ | |
138 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 139 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 | 140 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
40cb90ee | 141 | IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
2d966958 WD |
142 | volatile uchar *NetRxPkt; /* Current receive packet */ |
143 | int NetRxPktLen; /* Current rx packet length */ | |
144 | unsigned NetIPID; /* IP packet ID */ | |
145 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
146 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
147 | uchar NetEtherNullAddr[6] = |
148 | { 0, 0, 0, 0, 0, 0 }; | |
f85b6071 RJ |
149 | #ifdef CONFIG_API |
150 | void (*push_packet)(volatile void *, int len) = 0; | |
151 | #endif | |
643d1ab2 | 152 | #if defined(CONFIG_CMD_CDP) |
6e592385 | 153 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
154 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
155 | #endif | |
2d966958 WD |
156 | int NetState; /* Network loop state */ |
157 | #ifdef CONFIG_NET_MULTI | |
158 | int NetRestartWrap = 0; /* Tried all network devices */ | |
159 | static int NetRestarted = 0; /* Network loop restarted */ | |
160 | static int NetDevExists = 0; /* At least one device configured */ | |
161 | #endif | |
162 | ||
6e592385 WD |
163 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
164 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
165 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 166 | |
2d966958 WD |
167 | char BootFile[128]; /* Boot File name */ |
168 | ||
643d1ab2 | 169 | #if defined(CONFIG_CMD_PING) |
53677ef1 | 170 | IPaddr_t NetPingIP; /* the ip address to ping */ |
73a8b27c WD |
171 | |
172 | static void PingStart(void); | |
173 | #endif | |
174 | ||
643d1ab2 | 175 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
176 | static void CDPStart(void); |
177 | #endif | |
178 | ||
643d1ab2 | 179 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
180 | IPaddr_t NetNtpServerIP; /* NTP server IP address */ |
181 | int NetTimeOffset=0; /* offset time from UTC */ | |
182 | #endif | |
183 | ||
68ceb29e WD |
184 | #ifdef CONFIG_NETCONSOLE |
185 | void NcStart(void); | |
186 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
187 | #endif | |
188 | ||
2d966958 WD |
189 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
190 | ||
191 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
192 | ||
193 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
194 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
195 | static ulong timeStart; /* Time base value */ |
196 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
197 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
198 | ||
199 | static int net_check_prereq (proto_t protocol); | |
200 | ||
73a8b27c WD |
201 | /**********************************************************************/ |
202 | ||
203 | IPaddr_t NetArpWaitPacketIP; | |
204 | IPaddr_t NetArpWaitReplyIP; | |
205 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
b2f50807 | 206 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ |
73a8b27c | 207 | int NetArpWaitTxPacketSize; |
53677ef1 | 208 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; |
73a8b27c WD |
209 | ulong NetArpWaitTimerStart; |
210 | int NetArpWaitTry; | |
211 | ||
2f70c49e HS |
212 | int env_changed_id = 0; |
213 | ||
6e592385 | 214 | void ArpRequest (void) |
73a8b27c WD |
215 | { |
216 | int i; | |
217 | volatile uchar *pkt; | |
6e592385 | 218 | ARP_t *arp; |
73a8b27c WD |
219 | |
220 | #ifdef ET_DEBUG | |
6e592385 | 221 | printf ("ARP broadcast %d\n", NetArpWaitTry); |
73a8b27c WD |
222 | #endif |
223 | pkt = NetTxPacket; | |
224 | ||
6e592385 | 225 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 226 | |
6e592385 | 227 | arp = (ARP_t *) pkt; |
73a8b27c | 228 | |
6e592385 WD |
229 | arp->ar_hrd = htons (ARP_ETHER); |
230 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
231 | arp->ar_hln = 6; |
232 | arp->ar_pln = 4; | |
6e592385 | 233 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 234 | |
b2f50807 WD |
235 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
236 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
6e592385 WD |
237 | for (i = 10; i < 16; ++i) { |
238 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
239 | } |
240 | ||
6e592385 WD |
241 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
242 | (NetOurIP & NetOurSubnetMask)) { | |
243 | if (NetOurGatewayIP == 0) { | |
244 | puts ("## Warning: gatewayip needed but not set\n"); | |
d509b812 WD |
245 | NetArpWaitReplyIP = NetArpWaitPacketIP; |
246 | } else { | |
247 | NetArpWaitReplyIP = NetOurGatewayIP; | |
6e592385 | 248 | } |
6e592385 WD |
249 | } else { |
250 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
251 | } | |
73a8b27c | 252 | |
6e592385 WD |
253 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
254 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
255 | } |
256 | ||
257 | void ArpTimeoutCheck(void) | |
258 | { | |
259 | ulong t; | |
260 | ||
261 | if (!NetArpWaitPacketIP) | |
262 | return; | |
263 | ||
264 | t = get_timer(0); | |
265 | ||
266 | /* check for arp timeout */ | |
49f3bdbb | 267 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { |
73a8b27c WD |
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 | ||
2f70c49e HS |
281 | int |
282 | NetInitLoop(proto_t protocol) | |
283 | { | |
284 | bd_t *bd = gd->bd; | |
285 | int env_id = get_env_id (); | |
286 | ||
287 | /* update only when the environment has changed */ | |
288 | if (env_changed_id == env_id) | |
289 | return 0; | |
290 | ||
291 | switch (protocol) { | |
292 | #if defined(CONFIG_CMD_NFS) | |
293 | case NFS: | |
294 | #endif | |
295 | #if defined(CONFIG_CMD_PING) | |
296 | case PING: | |
297 | #endif | |
298 | #if defined(CONFIG_CMD_SNTP) | |
299 | case SNTP: | |
300 | #endif | |
301 | case NETCONS: | |
302 | case TFTP: | |
303 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); | |
304 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); | |
305 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
306 | NetOurVLAN = getenv_VLAN("vlan"); | |
307 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
308 | ||
309 | switch (protocol) { | |
310 | #if defined(CONFIG_CMD_NFS) | |
311 | case NFS: | |
312 | #endif | |
313 | case NETCONS: | |
314 | case TFTP: | |
315 | NetServerIP = getenv_IPaddr ("serverip"); | |
316 | break; | |
317 | #if defined(CONFIG_CMD_PING) | |
318 | case PING: | |
319 | /* nothing */ | |
320 | break; | |
321 | #endif | |
322 | #if defined(CONFIG_CMD_SNTP) | |
323 | case SNTP: | |
324 | /* nothing */ | |
325 | break; | |
326 | #endif | |
327 | default: | |
328 | break; | |
329 | } | |
330 | ||
331 | break; | |
332 | case BOOTP: | |
333 | case RARP: | |
334 | /* | |
335 | * initialize our IP addr to 0 in order to accept ANY | |
336 | * IP addr assigned to us by the BOOTP / RARP server | |
337 | */ | |
338 | NetOurIP = 0; | |
339 | NetServerIP = getenv_IPaddr ("serverip"); | |
340 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ | |
341 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
342 | case CDP: | |
343 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ | |
344 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
345 | break; | |
346 | default: | |
347 | break; | |
348 | } | |
349 | env_changed_id = env_id; | |
350 | return 0; | |
351 | } | |
352 | ||
2d966958 WD |
353 | /**********************************************************************/ |
354 | /* | |
355 | * Main network processing loop. | |
356 | */ | |
357 | ||
358 | int | |
359 | NetLoop(proto_t protocol) | |
360 | { | |
2d966958 WD |
361 | bd_t *bd = gd->bd; |
362 | ||
363 | #ifdef CONFIG_NET_MULTI | |
364 | NetRestarted = 0; | |
365 | NetDevExists = 0; | |
366 | #endif | |
367 | ||
73a8b27c WD |
368 | /* XXX problem with bss workaround */ |
369 | NetArpWaitPacketMAC = NULL; | |
370 | NetArpWaitTxPacket = NULL; | |
371 | NetArpWaitPacketIP = 0; | |
372 | NetArpWaitReplyIP = 0; | |
373 | NetArpWaitTxPacket = NULL; | |
374 | NetTxPacket = NULL; | |
375 | ||
2d966958 WD |
376 | if (!NetTxPacket) { |
377 | int i; | |
2d966958 WD |
378 | /* |
379 | * Setup packet buffers, aligned correctly. | |
380 | */ | |
381 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
382 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
383 | for (i = 0; i < PKTBUFSRX; i++) { | |
384 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
385 | } | |
73a8b27c WD |
386 | } |
387 | ||
388 | if (!NetArpWaitTxPacket) { | |
389 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
390 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
391 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
392 | } |
393 | ||
394 | eth_halt(); | |
6e592385 | 395 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 396 | eth_set_current(); |
6e592385 | 397 | #endif |
b1bf6f2c WD |
398 | if (eth_init(bd) < 0) { |
399 | eth_halt(); | |
6e592385 | 400 | return(-1); |
b1bf6f2c | 401 | } |
2d966958 WD |
402 | |
403 | restart: | |
404 | #ifdef CONFIG_NET_MULTI | |
405 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
406 | #else | |
95823ca0 | 407 | eth_getenv_enetaddr("ethaddr", NetOurEther); |
2d966958 WD |
408 | #endif |
409 | ||
410 | NetState = NETLOOP_CONTINUE; | |
411 | ||
412 | /* | |
413 | * Start the ball rolling with the given start function. From | |
414 | * here on, this code is a state machine driven by received | |
415 | * packets and timer events. | |
416 | */ | |
2f70c49e | 417 | NetInitLoop(protocol); |
2d966958 WD |
418 | |
419 | switch (net_check_prereq (protocol)) { | |
420 | case 1: | |
421 | /* network not configured */ | |
b1bf6f2c | 422 | eth_halt(); |
1d0350ed | 423 | return (-1); |
2d966958 WD |
424 | |
425 | #ifdef CONFIG_NET_MULTI | |
426 | case 2: | |
427 | /* network device not configured */ | |
428 | break; | |
429 | #endif /* CONFIG_NET_MULTI */ | |
430 | ||
431 | case 0: | |
432 | #ifdef CONFIG_NET_MULTI | |
433 | NetDevExists = 1; | |
434 | #endif | |
435 | switch (protocol) { | |
436 | case TFTP: | |
437 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 438 | TftpStart(); |
2d966958 WD |
439 | break; |
440 | ||
643d1ab2 | 441 | #if defined(CONFIG_CMD_DHCP) |
2d966958 WD |
442 | case DHCP: |
443 | /* Start with a clean slate... */ | |
d407bf52 | 444 | BootpTry = 0; |
2d966958 | 445 | NetOurIP = 0; |
3d3befa7 | 446 | NetServerIP = getenv_IPaddr ("serverip"); |
2d966958 WD |
447 | DhcpRequest(); /* Basically same as BOOTP */ |
448 | break; | |
610f2e9c | 449 | #endif |
2d966958 WD |
450 | |
451 | case BOOTP: | |
452 | BootpTry = 0; | |
453 | BootpRequest (); | |
454 | break; | |
455 | ||
456 | case RARP: | |
457 | RarpTry = 0; | |
458 | RarpRequest (); | |
459 | break; | |
643d1ab2 | 460 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
461 | case PING: |
462 | PingStart(); | |
463 | break; | |
cbd8a35c | 464 | #endif |
643d1ab2 | 465 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
466 | case NFS: |
467 | NfsStart(); | |
468 | break; | |
a3d991bd | 469 | #endif |
643d1ab2 | 470 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
471 | case CDP: |
472 | CDPStart(); | |
473 | break; | |
68ceb29e WD |
474 | #endif |
475 | #ifdef CONFIG_NETCONSOLE | |
476 | case NETCONS: | |
477 | NcStart(); | |
478 | break; | |
ea287deb | 479 | #endif |
643d1ab2 | 480 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
481 | case SNTP: |
482 | SntpStart(); | |
483 | break; | |
73a8b27c | 484 | #endif |
2d966958 WD |
485 | default: |
486 | break; | |
487 | } | |
488 | ||
489 | NetBootFileXferSize = 0; | |
490 | break; | |
491 | } | |
492 | ||
643d1ab2 | 493 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 494 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) |
fc3e2165 | 495 | /* |
42d1f039 | 496 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 497 | */ |
6d0f6bcf | 498 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
499 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
500 | } else { | |
501 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
502 | } | |
6d0f6bcf | 503 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 504 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
505 | |
506 | /* | |
507 | * Main packet reception loop. Loop receiving packets until | |
59acc296 | 508 | * someone sets `NetState' to a state that terminates. |
2d966958 WD |
509 | */ |
510 | for (;;) { | |
511 | WATCHDOG_RESET(); | |
512 | #ifdef CONFIG_SHOW_ACTIVITY | |
513 | { | |
514 | extern void show_activity(int arg); | |
515 | show_activity(1); | |
516 | } | |
517 | #endif | |
518 | /* | |
519 | * Check the ethernet for a new packet. The ethernet | |
520 | * receive routine will process it. | |
521 | */ | |
40cb90ee | 522 | eth_rx(); |
2d966958 WD |
523 | |
524 | /* | |
525 | * Abort if ctrl-c was pressed. | |
526 | */ | |
527 | if (ctrlc()) { | |
8bde7f77 | 528 | eth_halt(); |
4b9206ed | 529 | puts ("\nAbort\n"); |
1d0350ed | 530 | return (-1); |
2d966958 WD |
531 | } |
532 | ||
73a8b27c | 533 | ArpTimeoutCheck(); |
2d966958 WD |
534 | |
535 | /* | |
536 | * Check for a timeout, and run the timeout handler | |
537 | * if we have one. | |
538 | */ | |
e0ac62d7 | 539 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
540 | thand_f *x; |
541 | ||
643d1ab2 | 542 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 543 | # if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
63153492 | 544 | defined(CONFIG_STATUS_LED) && \ |
59acc296 | 545 | defined(STATUS_LED_RED) |
fc3e2165 | 546 | /* |
42d1f039 | 547 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 548 | */ |
6d0f6bcf | 549 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
550 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
551 | } else { | |
552 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
553 | } | |
6d0f6bcf | 554 | # endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 555 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
556 | x = timeHandler; |
557 | timeHandler = (thand_f *)0; | |
558 | (*x)(); | |
559 | } | |
560 | ||
561 | ||
562 | switch (NetState) { | |
563 | ||
564 | case NETLOOP_RESTART: | |
565 | #ifdef CONFIG_NET_MULTI | |
566 | NetRestarted = 1; | |
567 | #endif | |
568 | goto restart; | |
569 | ||
570 | case NETLOOP_SUCCESS: | |
571 | if (NetBootFileXferSize > 0) { | |
f34024d4 | 572 | char buf[20]; |
2d966958 WD |
573 | printf("Bytes transferred = %ld (%lx hex)\n", |
574 | NetBootFileXferSize, | |
575 | NetBootFileXferSize); | |
f34024d4 | 576 | sprintf(buf, "%lX", NetBootFileXferSize); |
2d966958 | 577 | setenv("filesize", buf); |
a3d991bd WD |
578 | |
579 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
580 | setenv("fileaddr", buf); | |
2d966958 WD |
581 | } |
582 | eth_halt(); | |
583 | return NetBootFileXferSize; | |
584 | ||
585 | case NETLOOP_FAIL: | |
1d0350ed | 586 | return (-1); |
2d966958 WD |
587 | } |
588 | } | |
589 | } | |
590 | ||
591 | /**********************************************************************/ | |
592 | ||
593 | static void | |
594 | startAgainTimeout(void) | |
595 | { | |
596 | NetState = NETLOOP_RESTART; | |
597 | } | |
598 | ||
599 | static void | |
600 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
601 | { | |
602 | /* Totally ignore the packet */ | |
603 | } | |
604 | ||
6e592385 | 605 | void NetStartAgain (void) |
2d966958 | 606 | { |
6e592385 WD |
607 | char *nretry; |
608 | int noretry = 0, once = 0; | |
a3d991bd | 609 | |
6e592385 WD |
610 | if ((nretry = getenv ("netretry")) != NULL) { |
611 | noretry = (strcmp (nretry, "no") == 0); | |
612 | once = (strcmp (nretry, "once") == 0); | |
613 | } | |
614 | if (noretry) { | |
615 | eth_halt (); | |
a3d991bd WD |
616 | NetState = NETLOOP_FAIL; |
617 | return; | |
618 | } | |
2d966958 | 619 | #ifndef CONFIG_NET_MULTI |
49f3bdbb | 620 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
621 | NetSetHandler (startAgainHandler); |
622 | #else /* !CONFIG_NET_MULTI*/ | |
623 | eth_halt (); | |
8b0c5c12 | 624 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
6e592385 | 625 | eth_try_another (!NetRestarted); |
8b0c5c12 | 626 | #endif |
6e592385 WD |
627 | eth_init (gd->bd); |
628 | if (NetRestartWrap) { | |
2d966958 | 629 | NetRestartWrap = 0; |
6e592385 | 630 | if (NetDevExists && !once) { |
49f3bdbb | 631 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
632 | NetSetHandler (startAgainHandler); |
633 | } else { | |
2d966958 WD |
634 | NetState = NETLOOP_FAIL; |
635 | } | |
6e592385 | 636 | } else { |
2d966958 WD |
637 | NetState = NETLOOP_RESTART; |
638 | } | |
6e592385 | 639 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
640 | } |
641 | ||
642 | /**********************************************************************/ | |
643 | /* | |
644 | * Miscelaneous bits. | |
645 | */ | |
646 | ||
647 | void | |
648 | NetSetHandler(rxhand_f * f) | |
649 | { | |
650 | packetHandler = f; | |
651 | } | |
652 | ||
653 | ||
654 | void | |
3e01d75f | 655 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
656 | { |
657 | if (iv == 0) { | |
658 | timeHandler = (thand_f *)0; | |
659 | } else { | |
660 | timeHandler = f; | |
e0ac62d7 WD |
661 | timeStart = get_timer(0); |
662 | timeDelta = iv; | |
2d966958 WD |
663 | } |
664 | } | |
665 | ||
666 | ||
667 | void | |
668 | NetSendPacket(volatile uchar * pkt, int len) | |
669 | { | |
670 | (void) eth_send(pkt, len); | |
671 | } | |
672 | ||
73a8b27c WD |
673 | int |
674 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
675 | { | |
a3d991bd WD |
676 | uchar *pkt; |
677 | ||
73a8b27c WD |
678 | /* convert to new style broadcast */ |
679 | if (dest == 0) | |
680 | dest = 0xFFFFFFFF; | |
681 | ||
682 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
683 | if (dest == 0xFFFFFFFF) | |
684 | ether = NetBcastAddr; | |
685 | ||
686 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
687 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
688 | ||
689 | #ifdef ET_DEBUG | |
690 | printf("sending ARP for %08lx\n", dest); | |
691 | #endif | |
73a8b27c WD |
692 | NetArpWaitPacketIP = dest; |
693 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
694 | |
695 | pkt = NetArpWaitTxPacket; | |
696 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
697 | ||
698 | NetSetIP (pkt, dest, dport, sport, len); | |
699 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
700 | |
701 | /* size of the waiting packet */ | |
a3d991bd | 702 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
703 | |
704 | /* and do the ARP request */ | |
705 | NetArpWaitTry = 1; | |
706 | NetArpWaitTimerStart = get_timer(0); | |
707 | ArpRequest(); | |
708 | return 1; /* waiting */ | |
709 | } | |
710 | ||
711 | #ifdef ET_DEBUG | |
95823ca0 | 712 | printf("sending UDP to %08lx/%pM\n", dest, ether); |
73a8b27c WD |
713 | #endif |
714 | ||
a3d991bd WD |
715 | pkt = (uchar *)NetTxPacket; |
716 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
717 | NetSetIP (pkt, dest, dport, sport, len); | |
718 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 719 | |
6e592385 | 720 | return 0; /* transmitted */ |
73a8b27c WD |
721 | } |
722 | ||
643d1ab2 | 723 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
724 | static ushort PingSeqNo; |
725 | ||
726 | int PingSend(void) | |
727 | { | |
728 | static uchar mac[6]; | |
729 | volatile IP_t *ip; | |
730 | volatile ushort *s; | |
a3d991bd | 731 | uchar *pkt; |
73a8b27c WD |
732 | |
733 | /* XXX always send arp request */ | |
734 | ||
735 | memcpy(mac, NetEtherNullAddr, 6); | |
736 | ||
737 | #ifdef ET_DEBUG | |
738 | printf("sending ARP for %08lx\n", NetPingIP); | |
739 | #endif | |
740 | ||
741 | NetArpWaitPacketIP = NetPingIP; | |
742 | NetArpWaitPacketMAC = mac; | |
743 | ||
a3d991bd WD |
744 | pkt = NetArpWaitTxPacket; |
745 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 746 | |
a3d991bd | 747 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
748 | |
749 | /* | |
750 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
751 | */ | |
752 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
753 | ip->ip_tos = 0; | |
754 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
755 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 756 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
73a8b27c WD |
757 | ip->ip_ttl = 255; |
758 | ip->ip_p = 0x01; /* ICMP */ | |
759 | ip->ip_sum = 0; | |
760 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
761 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
762 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
763 | ||
764 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
765 | s[0] = htons(0x0800); /* echo-request, code */ | |
766 | s[1] = 0; /* checksum */ | |
53677ef1 | 767 | s[2] = 0; /* identifier */ |
73a8b27c WD |
768 | s[3] = htons(PingSeqNo++); /* sequence number */ |
769 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
770 | ||
771 | /* size of the waiting packet */ | |
a3d991bd | 772 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
773 | |
774 | /* and do the ARP request */ | |
775 | NetArpWaitTry = 1; | |
776 | NetArpWaitTimerStart = get_timer(0); | |
777 | ArpRequest(); | |
778 | return 1; /* waiting */ | |
779 | } | |
780 | ||
781 | static void | |
782 | PingTimeout (void) | |
783 | { | |
784 | eth_halt(); | |
785 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
786 | } | |
2d966958 | 787 | |
73a8b27c WD |
788 | static void |
789 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
790 | { | |
791 | IPaddr_t tmp; | |
792 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
793 | ||
794 | tmp = NetReadIP((void *)&ip->ip_src); | |
795 | if (tmp != NetPingIP) | |
796 | return; | |
797 | ||
798 | NetState = NETLOOP_SUCCESS; | |
799 | } | |
800 | ||
801 | static void PingStart(void) | |
802 | { | |
a3d991bd WD |
803 | #if defined(CONFIG_NET_MULTI) |
804 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 805 | #endif /* CONFIG_NET_MULTI */ |
49f3bdbb | 806 | NetSetTimeout (10000UL, PingTimeout); |
73a8b27c WD |
807 | NetSetHandler (PingHandler); |
808 | ||
809 | PingSend(); | |
810 | } | |
610f2e9c | 811 | #endif |
2d966958 | 812 | |
643d1ab2 | 813 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
814 | |
815 | #define CDP_DEVICE_ID_TLV 0x0001 | |
816 | #define CDP_ADDRESS_TLV 0x0002 | |
817 | #define CDP_PORT_ID_TLV 0x0003 | |
818 | #define CDP_CAPABILITIES_TLV 0x0004 | |
819 | #define CDP_VERSION_TLV 0x0005 | |
820 | #define CDP_PLATFORM_TLV 0x0006 | |
821 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
822 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
823 | #define CDP_TRIGGER_TLV 0x000f | |
824 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
825 | #define CDP_SYSNAME_TLV 0x0014 | |
826 | #define CDP_SYSOBJECT_TLV 0x0015 | |
827 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
828 | ||
49f3bdbb | 829 | #define CDP_TIMEOUT 250UL /* one packet every 250ms */ |
a3d991bd WD |
830 | |
831 | static int CDPSeq; | |
832 | static int CDPOK; | |
833 | ||
834 | ushort CDPNativeVLAN; | |
835 | ushort CDPApplianceVLAN; | |
836 | ||
837 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
838 | ||
839 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
840 | { | |
841 | ushort csum; | |
842 | int odd; | |
843 | ulong result = 0; | |
844 | ushort leftover; | |
77ddac94 | 845 | ushort *p; |
a3d991bd WD |
846 | |
847 | if (len > 0) { | |
848 | odd = 1 & (ulong)buff; | |
849 | if (odd) { | |
850 | result = *buff << 8; | |
851 | len--; | |
852 | buff++; | |
853 | } | |
854 | while (len > 1) { | |
77ddac94 WD |
855 | p = (ushort *)buff; |
856 | result += *p++; | |
857 | buff = (uchar *)p; | |
a3d991bd WD |
858 | if (result & 0x80000000) |
859 | result = (result & 0xFFFF) + (result >> 16); | |
860 | len -= 2; | |
861 | } | |
862 | if (len) { | |
863 | leftover = (signed short)(*(const signed char *)buff); | |
3ada834e WD |
864 | /* CISCO SUCKS big time! (and blows too): |
865 | * CDP uses the IP checksum algorithm with a twist; | |
866 | * for the last byte it *sign* extends and sums. | |
867 | */ | |
a3d991bd WD |
868 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); |
869 | } | |
870 | while (result >> 16) | |
871 | result = (result & 0xFFFF) + (result >> 16); | |
872 | ||
873 | if (odd) | |
874 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
875 | } | |
876 | ||
877 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
878 | result = (result & 0xffff) + (result >> 16); | |
879 | /* add up 16-bit and 2-bit for 16+c bit */ | |
880 | result = (result & 0xffff) + (result >> 16); | |
881 | /* add up carry.. */ | |
882 | result = (result & 0xffff) + (result >> 16); | |
883 | ||
884 | /* negate */ | |
885 | csum = ~(ushort)result; | |
886 | ||
887 | /* run time endian detection */ | |
888 | if (csum != htons(csum)) /* little endian */ | |
889 | csum = htons(csum); | |
890 | ||
891 | return csum; | |
892 | } | |
893 | ||
894 | int CDPSendTrigger(void) | |
895 | { | |
896 | volatile uchar *pkt; | |
897 | volatile ushort *s; | |
898 | volatile ushort *cp; | |
899 | Ethernet_t *et; | |
a3d991bd WD |
900 | int len; |
901 | ushort chksum; | |
6e592385 WD |
902 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
903 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
904 | char buf[32]; | |
905 | #endif | |
a3d991bd WD |
906 | |
907 | pkt = NetTxPacket; | |
908 | et = (Ethernet_t *)pkt; | |
909 | ||
910 | /* NOTE: trigger sent not on any VLAN */ | |
911 | ||
912 | /* form ethernet header */ | |
913 | memcpy(et->et_dest, NetCDPAddr, 6); | |
914 | memcpy(et->et_src, NetOurEther, 6); | |
915 | ||
916 | pkt += ETHER_HDR_SIZE; | |
917 | ||
918 | /* SNAP header */ | |
919 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
920 | pkt += sizeof(CDP_SNAP_hdr); | |
921 | ||
922 | /* CDP header */ | |
923 | *pkt++ = 0x02; /* CDP version 2 */ | |
924 | *pkt++ = 180; /* TTL */ | |
925 | s = (volatile ushort *)pkt; | |
926 | cp = s; | |
927 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
928 | ||
929 | /* CDP fields */ | |
930 | #ifdef CONFIG_CDP_DEVICE_ID | |
931 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
932 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
95823ca0 | 933 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%pm", NetOurEther); |
a3d991bd WD |
934 | memcpy((uchar *)s, buf, 16); |
935 | s += 16 / 2; | |
936 | #endif | |
937 | ||
938 | #ifdef CONFIG_CDP_PORT_ID | |
939 | *s++ = htons(CDP_PORT_ID_TLV); | |
940 | memset(buf, 0, sizeof(buf)); | |
941 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
942 | len = strlen(buf); | |
943 | if (len & 1) /* make it even */ | |
944 | len++; | |
945 | *s++ = htons(len + 4); | |
946 | memcpy((uchar *)s, buf, len); | |
947 | s += len / 2; | |
948 | #endif | |
949 | ||
950 | #ifdef CONFIG_CDP_CAPABILITIES | |
951 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
952 | *s++ = htons(8); | |
953 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
954 | s += 2; | |
955 | #endif | |
956 | ||
957 | #ifdef CONFIG_CDP_VERSION | |
958 | *s++ = htons(CDP_VERSION_TLV); | |
959 | memset(buf, 0, sizeof(buf)); | |
960 | strcpy(buf, CONFIG_CDP_VERSION); | |
961 | len = strlen(buf); | |
962 | if (len & 1) /* make it even */ | |
963 | len++; | |
964 | *s++ = htons(len + 4); | |
965 | memcpy((uchar *)s, buf, len); | |
966 | s += len / 2; | |
967 | #endif | |
968 | ||
969 | #ifdef CONFIG_CDP_PLATFORM | |
970 | *s++ = htons(CDP_PLATFORM_TLV); | |
971 | memset(buf, 0, sizeof(buf)); | |
972 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
973 | len = strlen(buf); | |
974 | if (len & 1) /* make it even */ | |
975 | len++; | |
976 | *s++ = htons(len + 4); | |
977 | memcpy((uchar *)s, buf, len); | |
978 | s += len / 2; | |
979 | #endif | |
980 | ||
981 | #ifdef CONFIG_CDP_TRIGGER | |
982 | *s++ = htons(CDP_TRIGGER_TLV); | |
983 | *s++ = htons(8); | |
984 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
985 | s += 2; | |
986 | #endif | |
987 | ||
988 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
989 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
990 | *s++ = htons(6); | |
991 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
992 | #endif | |
993 | ||
994 | /* length of ethernet packet */ | |
995 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
996 | et->et_protlen = htons(len); | |
997 | ||
998 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
999 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
1000 | if (chksum == 0) | |
1001 | chksum = 0xFFFF; | |
1002 | *cp = htons(chksum); | |
1003 | ||
1004 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static void | |
1009 | CDPTimeout (void) | |
1010 | { | |
1011 | CDPSeq++; | |
1012 | ||
1013 | if (CDPSeq < 3) { | |
1014 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1015 | CDPSendTrigger(); | |
1016 | return; | |
1017 | } | |
1018 | ||
1019 | /* if not OK try again */ | |
1020 | if (!CDPOK) | |
1021 | NetStartAgain(); | |
1022 | else | |
1023 | NetState = NETLOOP_SUCCESS; | |
1024 | } | |
1025 | ||
1026 | static void | |
1027 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
1028 | { | |
1029 | /* nothing */ | |
1030 | } | |
1031 | ||
1032 | static void | |
1033 | CDPHandler(const uchar * pkt, unsigned len) | |
1034 | { | |
1035 | const uchar *t; | |
1036 | const ushort *ss; | |
1037 | ushort type, tlen; | |
1038 | uchar applid; | |
1039 | ushort vlan, nvlan; | |
1040 | ||
1041 | /* minimum size? */ | |
1042 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
1043 | goto pkt_short; | |
1044 | ||
1045 | /* check for valid CDP SNAP header */ | |
1046 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
1047 | return; | |
1048 | ||
1049 | pkt += sizeof(CDP_SNAP_hdr); | |
1050 | len -= sizeof(CDP_SNAP_hdr); | |
1051 | ||
1052 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
1053 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
1054 | return; | |
1055 | ||
1056 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
1057 | if (pkt[0] != 0x02) | |
1058 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
1059 | pkt[0] & 0xff); | |
1060 | ||
1061 | if (CDP_compute_csum(pkt, len) != 0) | |
1062 | return; | |
1063 | ||
1064 | pkt += 4; | |
1065 | len -= 4; | |
1066 | ||
1067 | vlan = htons(-1); | |
1068 | nvlan = htons(-1); | |
1069 | while (len > 0) { | |
1070 | if (len < 4) | |
1071 | goto pkt_short; | |
1072 | ||
1073 | ss = (const ushort *)pkt; | |
1074 | type = ntohs(ss[0]); | |
1075 | tlen = ntohs(ss[1]); | |
1076 | if (tlen > len) { | |
1077 | goto pkt_short; | |
1078 | } | |
1079 | ||
1080 | pkt += tlen; | |
1081 | len -= tlen; | |
1082 | ||
1083 | ss += 2; /* point ss to the data of the TLV */ | |
1084 | tlen -= 4; | |
1085 | ||
1086 | switch (type) { | |
1087 | case CDP_DEVICE_ID_TLV: | |
1088 | break; | |
1089 | case CDP_ADDRESS_TLV: | |
1090 | break; | |
1091 | case CDP_PORT_ID_TLV: | |
1092 | break; | |
1093 | case CDP_CAPABILITIES_TLV: | |
1094 | break; | |
1095 | case CDP_VERSION_TLV: | |
1096 | break; | |
1097 | case CDP_PLATFORM_TLV: | |
1098 | break; | |
1099 | case CDP_NATIVE_VLAN_TLV: | |
1100 | nvlan = *ss; | |
1101 | break; | |
1102 | case CDP_APPLIANCE_VLAN_TLV: | |
1103 | t = (const uchar *)ss; | |
1104 | while (tlen > 0) { | |
1105 | if (tlen < 3) | |
1106 | goto pkt_short; | |
1107 | ||
1108 | applid = t[0]; | |
1109 | ss = (const ushort *)(t + 1); | |
1110 | ||
1111 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1112 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1113 | vlan = *ss; | |
1114 | #else | |
1115 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1116 | #endif | |
1117 | t += 3; tlen -= 3; | |
1118 | } | |
1119 | break; | |
1120 | case CDP_TRIGGER_TLV: | |
1121 | break; | |
1122 | case CDP_POWER_CONSUMPTION_TLV: | |
1123 | break; | |
1124 | case CDP_SYSNAME_TLV: | |
1125 | break; | |
1126 | case CDP_SYSOBJECT_TLV: | |
1127 | break; | |
1128 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1129 | break; | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | CDPApplianceVLAN = vlan; | |
1134 | CDPNativeVLAN = nvlan; | |
1135 | ||
1136 | CDPOK = 1; | |
1137 | return; | |
1138 | ||
1139 | pkt_short: | |
1140 | printf("** CDP packet is too short\n"); | |
1141 | return; | |
1142 | } | |
1143 | ||
1144 | static void CDPStart(void) | |
1145 | { | |
1146 | #if defined(CONFIG_NET_MULTI) | |
1147 | printf ("Using %s device\n", eth_get_name()); | |
1148 | #endif | |
1149 | CDPSeq = 0; | |
1150 | CDPOK = 0; | |
1151 | ||
1152 | CDPNativeVLAN = htons(-1); | |
1153 | CDPApplianceVLAN = htons(-1); | |
1154 | ||
1155 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1156 | NetSetHandler (CDPDummyHandler); | |
1157 | ||
1158 | CDPSendTrigger(); | |
1159 | } | |
610f2e9c | 1160 | #endif |
a3d991bd WD |
1161 | |
1162 | ||
2d966958 | 1163 | void |
a3d991bd | 1164 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1165 | { |
1166 | Ethernet_t *et; | |
1167 | IP_t *ip; | |
1168 | ARP_t *arp; | |
1169 | IPaddr_t tmp; | |
1170 | int x; | |
a3d991bd | 1171 | uchar *pkt; |
643d1ab2 | 1172 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1173 | int iscdp; |
1174 | #endif | |
1175 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1176 | ||
1177 | #ifdef ET_DEBUG | |
1178 | printf("packet received\n"); | |
1179 | #endif | |
2d966958 | 1180 | |
a3d991bd | 1181 | NetRxPkt = inpkt; |
2d966958 | 1182 | NetRxPktLen = len; |
a3d991bd WD |
1183 | et = (Ethernet_t *)inpkt; |
1184 | ||
1185 | /* too small packet? */ | |
1186 | if (len < ETHER_HDR_SIZE) | |
1187 | return; | |
1188 | ||
f85b6071 RJ |
1189 | #ifdef CONFIG_API |
1190 | if (push_packet) { | |
1191 | (*push_packet)(inpkt, len); | |
1192 | return; | |
1193 | } | |
1194 | #endif | |
1195 | ||
643d1ab2 | 1196 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1197 | /* keep track if packet is CDP */ |
1198 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1199 | #endif | |
1200 | ||
1201 | myvlanid = ntohs(NetOurVLAN); | |
1202 | if (myvlanid == (ushort)-1) | |
1203 | myvlanid = VLAN_NONE; | |
1204 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1205 | if (mynvlanid == (ushort)-1) | |
1206 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1207 | |
1208 | x = ntohs(et->et_protlen); | |
1209 | ||
a3d991bd WD |
1210 | #ifdef ET_DEBUG |
1211 | printf("packet received\n"); | |
1212 | #endif | |
1213 | ||
2d966958 WD |
1214 | if (x < 1514) { |
1215 | /* | |
1216 | * Got a 802 packet. Check the other protocol field. | |
1217 | */ | |
1218 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1219 | |
1220 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1221 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1222 | |
1223 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1224 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1225 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1226 | |
1227 | } else { /* VLAN packet */ | |
1228 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1229 | ||
1230 | #ifdef ET_DEBUG | |
1231 | printf("VLAN packet received\n"); | |
1232 | #endif | |
1233 | /* too small packet? */ | |
1234 | if (len < VLAN_ETHER_HDR_SIZE) | |
1235 | return; | |
1236 | ||
1237 | /* if no VLAN active */ | |
1238 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
643d1ab2 | 1239 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1240 | && iscdp == 0 |
1241 | #endif | |
1242 | ) | |
1243 | return; | |
1244 | ||
1245 | cti = ntohs(vet->vet_tag); | |
1246 | vlanid = cti & VLAN_IDMASK; | |
1247 | x = ntohs(vet->vet_type); | |
1248 | ||
1249 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1250 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1251 | } |
1252 | ||
1253 | #ifdef ET_DEBUG | |
1254 | printf("Receive from protocol 0x%x\n", x); | |
1255 | #endif | |
1256 | ||
643d1ab2 | 1257 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1258 | if (iscdp) { |
1259 | CDPHandler((uchar *)ip, len); | |
1260 | return; | |
1261 | } | |
1262 | #endif | |
1263 | ||
1264 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1265 | if (vlanid == VLAN_NONE) | |
1266 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1267 | /* not matched? */ | |
1268 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1269 | return; | |
1270 | } | |
1271 | ||
2d966958 WD |
1272 | switch (x) { |
1273 | ||
1274 | case PROT_ARP: | |
1275 | /* | |
1276 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1277 | * - REQUEST packets will be answered by sending our |
1278 | * IP address - if we know it. | |
1279 | * - REPLY packates are expected only after we asked | |
1280 | * for the TFTP server's or the gateway's ethernet | |
1281 | * address; so if we receive such a packet, we set | |
1282 | * the server ethernet address | |
2d966958 WD |
1283 | */ |
1284 | #ifdef ET_DEBUG | |
4b9206ed | 1285 | puts ("Got ARP\n"); |
2d966958 WD |
1286 | #endif |
1287 | arp = (ARP_t *)ip; | |
1288 | if (len < ARP_HDR_SIZE) { | |
1289 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1290 | return; | |
1291 | } | |
1292 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1293 | return; | |
1294 | } | |
1295 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1296 | return; | |
1297 | } | |
1298 | if (arp->ar_hln != 6) { | |
1299 | return; | |
1300 | } | |
1301 | if (arp->ar_pln != 4) { | |
1302 | return; | |
1303 | } | |
1304 | ||
1305 | if (NetOurIP == 0) { | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1310 | return; | |
1311 | } | |
1312 | ||
1313 | switch (ntohs(arp->ar_op)) { | |
1314 | case ARPOP_REQUEST: /* reply with our IP address */ | |
1315 | #ifdef ET_DEBUG | |
4b9206ed | 1316 | puts ("Got ARP REQUEST, return our IP\n"); |
2d966958 | 1317 | #endif |
a3d991bd WD |
1318 | pkt = (uchar *)et; |
1319 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1320 | arp->ar_op = htons(ARPOP_REPLY); |
1321 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1322 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1323 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1324 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1325 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1326 | return; |
73a8b27c WD |
1327 | |
1328 | case ARPOP_REPLY: /* arp reply */ | |
1329 | /* are we waiting for a reply */ | |
1330 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1331 | break; | |
2d966958 | 1332 | #ifdef ET_DEBUG |
95823ca0 MF |
1333 | printf("Got ARP REPLY, set server/gtwy eth addr (%pM)\n", |
1334 | arp->ar_data); | |
2d966958 | 1335 | #endif |
73a8b27c WD |
1336 | |
1337 | tmp = NetReadIP(&arp->ar_data[6]); | |
1338 | ||
1339 | /* matched waiting packet's address */ | |
1340 | if (tmp == NetArpWaitReplyIP) { | |
1341 | #ifdef ET_DEBUG | |
4b9206ed | 1342 | puts ("Got it\n"); |
73a8b27c WD |
1343 | #endif |
1344 | /* save address for later use */ | |
1345 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1346 | ||
68ceb29e WD |
1347 | #ifdef CONFIG_NETCONSOLE |
1348 | (*packetHandler)(0,0,0,0); | |
1349 | #endif | |
73a8b27c WD |
1350 | /* modify header, and transmit it */ |
1351 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1352 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1353 | ||
1354 | /* no arp request pending now */ | |
1355 | NetArpWaitPacketIP = 0; | |
1356 | NetArpWaitTxPacketSize = 0; | |
1357 | NetArpWaitPacketMAC = NULL; | |
1358 | ||
1359 | } | |
2d966958 WD |
1360 | return; |
1361 | default: | |
1362 | #ifdef ET_DEBUG | |
1363 | printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); | |
1364 | #endif | |
1365 | return; | |
1366 | } | |
289f932c | 1367 | break; |
2d966958 WD |
1368 | |
1369 | case PROT_RARP: | |
1370 | #ifdef ET_DEBUG | |
4b9206ed | 1371 | puts ("Got RARP\n"); |
2d966958 WD |
1372 | #endif |
1373 | arp = (ARP_t *)ip; | |
1374 | if (len < ARP_HDR_SIZE) { | |
1375 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1376 | return; | |
1377 | } | |
1378 | ||
1379 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1380 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1381 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1382 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1383 | ||
4b9206ed | 1384 | puts ("invalid RARP header\n"); |
2d966958 WD |
1385 | } else { |
1386 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1387 | if (NetServerIP == 0) |
1388 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1389 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1390 | ||
1391 | (*packetHandler)(0,0,0,0); | |
1392 | } | |
1393 | break; | |
1394 | ||
1395 | case PROT_IP: | |
1396 | #ifdef ET_DEBUG | |
4b9206ed | 1397 | puts ("Got IP\n"); |
2d966958 WD |
1398 | #endif |
1399 | if (len < IP_HDR_SIZE) { | |
25dbe98a | 1400 | debug ("len bad %d < %lu\n", len, (ulong)IP_HDR_SIZE); |
2d966958 WD |
1401 | return; |
1402 | } | |
1403 | if (len < ntohs(ip->ip_len)) { | |
1404 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1405 | return; | |
1406 | } | |
1407 | len = ntohs(ip->ip_len); | |
1408 | #ifdef ET_DEBUG | |
1409 | printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); | |
1410 | #endif | |
1411 | if ((ip->ip_hl_v & 0xf0) != 0x40) { | |
1412 | return; | |
1413 | } | |
d32c5be5 PT |
1414 | /* Can't deal with fragments */ |
1415 | if (ip->ip_off & htons(IP_OFFS | IP_FLAGS_MFRAG)) { | |
2d966958 WD |
1416 | return; |
1417 | } | |
6b52cfe1 RB |
1418 | /* can't deal with headers > 20 bytes */ |
1419 | if ((ip->ip_hl_v & 0x0f) > 0x05) { | |
1420 | return; | |
1421 | } | |
2d966958 | 1422 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { |
4b9206ed | 1423 | puts ("checksum bad\n"); |
2d966958 WD |
1424 | return; |
1425 | } | |
1426 | tmp = NetReadIP(&ip->ip_dst); | |
1427 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
53a5c424 | 1428 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 1429 | if (Mcast_addr != tmp) |
53a5c424 | 1430 | #endif |
2d966958 WD |
1431 | return; |
1432 | } | |
1433 | /* | |
1434 | * watch for ICMP host redirects | |
1435 | * | |
8bde7f77 WD |
1436 | * There is no real handler code (yet). We just watch |
1437 | * for ICMP host redirect messages. In case anybody | |
1438 | * sees these messages: please contact me | |
1439 | * (wd@denx.de), or - even better - send me the | |
1440 | * necessary fixes :-) | |
2d966958 | 1441 | * |
8bde7f77 WD |
1442 | * Note: in all cases where I have seen this so far |
1443 | * it was a problem with the router configuration, | |
1444 | * for instance when a router was configured in the | |
1445 | * BOOTP reply, but the TFTP server was on the same | |
1446 | * subnet. So this is probably a warning that your | |
1447 | * configuration might be wrong. But I'm not really | |
1448 | * sure if there aren't any other situations. | |
2d966958 WD |
1449 | */ |
1450 | if (ip->ip_p == IPPROTO_ICMP) { | |
1451 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1452 | ||
73a8b27c WD |
1453 | switch (icmph->type) { |
1454 | case ICMP_REDIRECT: | |
90dc6704 WD |
1455 | if (icmph->code != ICMP_REDIR_HOST) |
1456 | return; | |
b6446b67 | 1457 | printf (" ICMP Host Redirect to %pI4 ", &icmph->un.gateway); |
8534bf9a | 1458 | return; |
643d1ab2 | 1459 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
1460 | case ICMP_ECHO_REPLY: |
1461 | /* | |
1462 | * IP header OK. Pass the packet to the current handler. | |
1463 | */ | |
1464 | /* XXX point to ip packet */ | |
1465 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
8534bf9a | 1466 | return; |
83853178 ES |
1467 | case ICMP_ECHO_REQUEST: |
1468 | #ifdef ET_DEBUG | |
1469 | printf ("Got ICMP ECHO REQUEST, return %d bytes \n", | |
1470 | ETHER_HDR_SIZE + len); | |
1471 | #endif | |
1472 | memcpy (&et->et_dest[0], &et->et_src[0], 6); | |
1473 | memcpy (&et->et_src[ 0], NetOurEther, 6); | |
1474 | ||
1475 | ip->ip_sum = 0; | |
1476 | ip->ip_off = 0; | |
1477 | NetCopyIP((void*)&ip->ip_dst, &ip->ip_src); | |
1478 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); | |
1479 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1); | |
1480 | ||
1481 | icmph->type = ICMP_ECHO_REPLY; | |
1482 | icmph->checksum = 0; | |
1483 | icmph->checksum = ~NetCksum((uchar *)icmph, | |
1484 | (len - IP_HDR_SIZE_NO_UDP) >> 1); | |
1485 | (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len); | |
1486 | return; | |
73a8b27c WD |
1487 | #endif |
1488 | default: | |
1489 | return; | |
1490 | } | |
2d966958 WD |
1491 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1492 | return; | |
1493 | } | |
1494 | ||
8534bf9a SR |
1495 | #ifdef CONFIG_UDP_CHECKSUM |
1496 | if (ip->udp_xsum != 0) { | |
b2f50807 | 1497 | ulong xsum; |
8534bf9a SR |
1498 | ushort *sumptr; |
1499 | ushort sumlen; | |
1500 | ||
1501 | xsum = ip->ip_p; | |
1502 | xsum += (ntohs(ip->udp_len)); | |
1503 | xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; | |
1504 | xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; | |
1505 | xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; | |
1506 | xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; | |
1507 | ||
1508 | sumlen = ntohs(ip->udp_len); | |
1509 | sumptr = (ushort *) &(ip->udp_src); | |
1510 | ||
1511 | while (sumlen > 1) { | |
b2f50807 | 1512 | ushort sumdata; |
8534bf9a SR |
1513 | |
1514 | sumdata = *sumptr++; | |
1515 | xsum += ntohs(sumdata); | |
1516 | sumlen -= 2; | |
1517 | } | |
1518 | if (sumlen > 0) { | |
b2f50807 | 1519 | ushort sumdata; |
8534bf9a SR |
1520 | |
1521 | sumdata = *(unsigned char *) sumptr; | |
b2f50807 | 1522 | sumdata = (sumdata << 8) & 0xff00; |
8534bf9a SR |
1523 | xsum += sumdata; |
1524 | } | |
1525 | while ((xsum >> 16) != 0) { | |
b2f50807 | 1526 | xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); |
8534bf9a SR |
1527 | } |
1528 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { | |
9b55a253 WD |
1529 | printf(" UDP wrong checksum %08lx %08x\n", |
1530 | xsum, ntohs(ip->udp_xsum)); | |
8534bf9a SR |
1531 | return; |
1532 | } | |
1533 | } | |
1534 | #endif | |
1535 | ||
53a5c424 | 1536 | |
68ceb29e WD |
1537 | #ifdef CONFIG_NETCONSOLE |
1538 | nc_input_packet((uchar *)ip +IP_HDR_SIZE, | |
1539 | ntohs(ip->udp_dst), | |
1540 | ntohs(ip->udp_src), | |
1541 | ntohs(ip->udp_len) - 8); | |
1542 | #endif | |
2d966958 WD |
1543 | /* |
1544 | * IP header OK. Pass the packet to the current handler. | |
1545 | */ | |
1546 | (*packetHandler)((uchar *)ip +IP_HDR_SIZE, | |
1547 | ntohs(ip->udp_dst), | |
1548 | ntohs(ip->udp_src), | |
1549 | ntohs(ip->udp_len) - 8); | |
2d966958 WD |
1550 | break; |
1551 | } | |
1552 | } | |
1553 | ||
1554 | ||
1555 | /**********************************************************************/ | |
1556 | ||
1557 | static int net_check_prereq (proto_t protocol) | |
1558 | { | |
1559 | switch (protocol) { | |
6e592385 | 1560 | /* Fall through */ |
643d1ab2 | 1561 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 1562 | case PING: |
6e592385 WD |
1563 | if (NetPingIP == 0) { |
1564 | puts ("*** ERROR: ping address not given\n"); | |
1565 | return (1); | |
1566 | } | |
1567 | goto common; | |
cbd8a35c | 1568 | #endif |
643d1ab2 | 1569 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
1570 | case SNTP: |
1571 | if (NetNtpServerIP == 0) { | |
1572 | puts ("*** ERROR: NTP server address not given\n"); | |
1573 | return (1); | |
1574 | } | |
1575 | goto common; | |
1576 | #endif | |
643d1ab2 | 1577 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c | 1578 | case NFS: |
73a8b27c | 1579 | #endif |
68ceb29e | 1580 | case NETCONS: |
2d966958 | 1581 | case TFTP: |
6e592385 WD |
1582 | if (NetServerIP == 0) { |
1583 | puts ("*** ERROR: `serverip' not set\n"); | |
1584 | return (1); | |
1585 | } | |
643d1ab2 | 1586 | #if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) |
b2f50807 | 1587 | common: |
73a8b27c WD |
1588 | #endif |
1589 | ||
6e592385 WD |
1590 | if (NetOurIP == 0) { |
1591 | puts ("*** ERROR: `ipaddr' not set\n"); | |
1592 | return (1); | |
1593 | } | |
1594 | /* Fall through */ | |
2d966958 WD |
1595 | |
1596 | case DHCP: | |
1597 | case RARP: | |
1598 | case BOOTP: | |
a3d991bd | 1599 | case CDP: |
6e592385 | 1600 | if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { |
2d966958 | 1601 | #ifdef CONFIG_NET_MULTI |
6e592385 WD |
1602 | extern int eth_get_dev_index (void); |
1603 | int num = eth_get_dev_index (); | |
2d966958 | 1604 | |
6e592385 WD |
1605 | switch (num) { |
1606 | case -1: | |
2d966958 WD |
1607 | puts ("*** ERROR: No ethernet found.\n"); |
1608 | return (1); | |
6e592385 | 1609 | case 0: |
2d966958 WD |
1610 | puts ("*** ERROR: `ethaddr' not set\n"); |
1611 | break; | |
6e592385 | 1612 | default: |
8bde7f77 | 1613 | printf ("*** ERROR: `eth%daddr' not set\n", |
2d966958 WD |
1614 | num); |
1615 | break; | |
6e592385 | 1616 | } |
2d966958 | 1617 | |
6e592385 WD |
1618 | NetStartAgain (); |
1619 | return (2); | |
2d966958 | 1620 | #else |
6e592385 WD |
1621 | puts ("*** ERROR: `ethaddr' not set\n"); |
1622 | return (1); | |
2d966958 | 1623 | #endif |
6e592385 WD |
1624 | } |
1625 | /* Fall through */ | |
1626 | default: | |
1627 | return (0); | |
2d966958 | 1628 | } |
6e592385 | 1629 | return (0); /* OK */ |
2d966958 WD |
1630 | } |
1631 | /**********************************************************************/ | |
1632 | ||
1633 | int | |
1634 | NetCksumOk(uchar * ptr, int len) | |
1635 | { | |
1636 | return !((NetCksum(ptr, len) + 1) & 0xfffe); | |
1637 | } | |
1638 | ||
1639 | ||
1640 | unsigned | |
1641 | NetCksum(uchar * ptr, int len) | |
1642 | { | |
1643 | ulong xsum; | |
9d2a873b | 1644 | ushort *p = (ushort *)ptr; |
2d966958 WD |
1645 | |
1646 | xsum = 0; | |
1647 | while (len-- > 0) | |
7bc5ee07 | 1648 | xsum += *p++; |
2d966958 WD |
1649 | xsum = (xsum & 0xffff) + (xsum >> 16); |
1650 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1651 | return (xsum & 0xffff); | |
1652 | } | |
1653 | ||
a3d991bd WD |
1654 | int |
1655 | NetEthHdrSize(void) | |
1656 | { | |
1657 | ushort myvlanid; | |
2d966958 | 1658 | |
a3d991bd WD |
1659 | myvlanid = ntohs(NetOurVLAN); |
1660 | if (myvlanid == (ushort)-1) | |
1661 | myvlanid = VLAN_NONE; | |
1662 | ||
1663 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; | |
1664 | } | |
1665 | ||
1666 | int | |
2d966958 WD |
1667 | NetSetEther(volatile uchar * xet, uchar * addr, uint prot) |
1668 | { | |
1669 | Ethernet_t *et = (Ethernet_t *)xet; | |
a3d991bd WD |
1670 | ushort myvlanid; |
1671 | ||
1672 | myvlanid = ntohs(NetOurVLAN); | |
1673 | if (myvlanid == (ushort)-1) | |
1674 | myvlanid = VLAN_NONE; | |
2d966958 WD |
1675 | |
1676 | memcpy (et->et_dest, addr, 6); | |
1677 | memcpy (et->et_src, NetOurEther, 6); | |
a3d991bd | 1678 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
2d966958 | 1679 | et->et_protlen = htons(prot); |
a3d991bd WD |
1680 | return ETHER_HDR_SIZE; |
1681 | } else { | |
1682 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; | |
2d966958 | 1683 | |
a3d991bd WD |
1684 | vet->vet_vlan_type = htons(PROT_VLAN); |
1685 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); | |
1686 | vet->vet_type = htons(prot); | |
1687 | return VLAN_ETHER_HDR_SIZE; | |
1688 | } | |
1689 | } | |
2d966958 WD |
1690 | |
1691 | void | |
1692 | NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) | |
1693 | { | |
af8626e0 | 1694 | IP_t *ip = (IP_t *)xip; |
2d966958 WD |
1695 | |
1696 | /* | |
1697 | * If the data is an odd number of bytes, zero the | |
1698 | * byte after the last byte so that the checksum | |
1699 | * will work. | |
1700 | */ | |
1701 | if (len & 1) | |
1702 | xip[IP_HDR_SIZE + len] = 0; | |
1703 | ||
1704 | /* | |
1705 | * Construct an IP and UDP header. | |
6e592385 | 1706 | * (need to set no fragment bit - XXX) |
2d966958 WD |
1707 | */ |
1708 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
1709 | ip->ip_tos = 0; | |
1710 | ip->ip_len = htons(IP_HDR_SIZE + len); | |
1711 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 1712 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
2d966958 WD |
1713 | ip->ip_ttl = 255; |
1714 | ip->ip_p = 17; /* UDP */ | |
1715 | ip->ip_sum = 0; | |
1716 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
1717 | NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ | |
1718 | ip->udp_src = htons(sport); | |
1719 | ip->udp_dst = htons(dport); | |
1720 | ip->udp_len = htons(8 + len); | |
1721 | ip->udp_xsum = 0; | |
1722 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
1723 | } | |
1724 | ||
77ddac94 | 1725 | void copy_filename (char *dst, char *src, int size) |
2d966958 WD |
1726 | { |
1727 | if (*src && (*src == '"')) { | |
1728 | ++src; | |
1729 | --size; | |
1730 | } | |
1731 | ||
1732 | while ((--size > 0) && *src && (*src != '"')) { | |
1733 | *dst++ = *src++; | |
1734 | } | |
1735 | *dst = '\0'; | |
1736 | } | |
1737 | ||
610f2e9c | 1738 | #endif |
2d966958 WD |
1739 | |
1740 | void ip_to_string (IPaddr_t x, char *s) | |
1741 | { | |
a3d991bd WD |
1742 | x = ntohl (x); |
1743 | sprintf (s, "%d.%d.%d.%d", | |
1744 | (int) ((x >> 24) & 0xff), | |
1745 | (int) ((x >> 16) & 0xff), | |
1746 | (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) | |
6e592385 | 1747 | ); |
2d966958 WD |
1748 | } |
1749 | ||
73a8b27c | 1750 | IPaddr_t string_to_ip(char *s) |
2d966958 WD |
1751 | { |
1752 | IPaddr_t addr; | |
73a8b27c | 1753 | char *e; |
2d966958 WD |
1754 | int i; |
1755 | ||
73a8b27c WD |
1756 | if (s == NULL) |
1757 | return(0); | |
2d966958 WD |
1758 | |
1759 | for (addr=0, i=0; i<4; ++i) { | |
1760 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
1761 | addr <<= 8; | |
1762 | addr |= (val & 0xFF); | |
1763 | if (s) { | |
1764 | s = (*e) ? e+1 : e; | |
1765 | } | |
1766 | } | |
1767 | ||
1768 | return (htonl(addr)); | |
1769 | } | |
73a8b27c | 1770 | |
a3d991bd WD |
1771 | void VLAN_to_string(ushort x, char *s) |
1772 | { | |
1773 | x = ntohs(x); | |
1774 | ||
1775 | if (x == (ushort)-1) | |
1776 | x = VLAN_NONE; | |
1777 | ||
1778 | if (x == VLAN_NONE) | |
1779 | strcpy(s, "none"); | |
1780 | else | |
1781 | sprintf(s, "%d", x & VLAN_IDMASK); | |
1782 | } | |
1783 | ||
1784 | ushort string_to_VLAN(char *s) | |
1785 | { | |
1786 | ushort id; | |
1787 | ||
1788 | if (s == NULL) | |
b9711de1 | 1789 | return htons(VLAN_NONE); |
a3d991bd WD |
1790 | |
1791 | if (*s < '0' || *s > '9') | |
1792 | id = VLAN_NONE; | |
1793 | else | |
1794 | id = (ushort)simple_strtoul(s, NULL, 10); | |
1795 | ||
b9711de1 | 1796 | return htons(id); |
a3d991bd WD |
1797 | } |
1798 | ||
73a8b27c WD |
1799 | IPaddr_t getenv_IPaddr (char *var) |
1800 | { | |
1801 | return (string_to_ip(getenv(var))); | |
1802 | } | |
a3d991bd WD |
1803 | |
1804 | ushort getenv_VLAN(char *var) | |
1805 | { | |
1806 | return (string_to_VLAN(getenv(var))); | |
1807 | } |