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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 | * | |
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 | |
1a32bf41 RG |
95 | #if defined(CONFIG_CMD_DNS) |
96 | #include "dns.h" | |
97 | #endif | |
2d966958 | 98 | |
643d1ab2 | 99 | #if defined(CONFIG_CMD_NET) |
2d966958 | 100 | |
d87080b7 WD |
101 | DECLARE_GLOBAL_DATA_PTR; |
102 | ||
40cb90ee | 103 | #ifndef CONFIG_ARP_TIMEOUT |
49f3bdbb | 104 | # define ARP_TIMEOUT 5000UL /* Milliseconds before trying ARP again */ |
40cb90ee | 105 | #else |
49f3bdbb | 106 | # define ARP_TIMEOUT CONFIG_ARP_TIMEOUT |
40cb90ee GL |
107 | #endif |
108 | ||
109 | ||
73a8b27c | 110 | #ifndef CONFIG_NET_RETRY_COUNT |
40cb90ee | 111 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
73a8b27c | 112 | #else |
40cb90ee | 113 | # define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT |
73a8b27c WD |
114 | #endif |
115 | ||
2d966958 WD |
116 | #if 0 |
117 | #define ET_DEBUG | |
118 | #endif | |
119 | ||
120 | /** BOOTP EXTENTIONS **/ | |
121 | ||
122 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
123 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
124 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
1fe80d79 | 125 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 SR |
126 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ |
127 | #endif | |
2d966958 WD |
128 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
129 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
130 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
131 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
132 | ||
53a5c424 DU |
133 | #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ |
134 | IPaddr_t Mcast_addr; | |
135 | #endif | |
136 | ||
2d966958 WD |
137 | /** END OF BOOTP EXTENTIONS **/ |
138 | ||
139 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
140 | uchar NetOurEther[6]; /* Our ethernet address */ | |
141 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 142 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 | 143 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
40cb90ee | 144 | IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
d9bec9f4 MF |
145 | volatile uchar *NetRxPacket; /* Current receive packet */ |
146 | int NetRxPacketLen; /* Current rx packet length */ | |
2d966958 WD |
147 | unsigned NetIPID; /* IP packet ID */ |
148 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
149 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
150 | uchar NetEtherNullAddr[6] = |
151 | { 0, 0, 0, 0, 0, 0 }; | |
f85b6071 RJ |
152 | #ifdef CONFIG_API |
153 | void (*push_packet)(volatile void *, int len) = 0; | |
154 | #endif | |
643d1ab2 | 155 | #if defined(CONFIG_CMD_CDP) |
6e592385 | 156 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
157 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
158 | #endif | |
2d966958 WD |
159 | int NetState; /* Network loop state */ |
160 | #ifdef CONFIG_NET_MULTI | |
161 | int NetRestartWrap = 0; /* Tried all network devices */ | |
162 | static int NetRestarted = 0; /* Network loop restarted */ | |
163 | static int NetDevExists = 0; /* At least one device configured */ | |
164 | #endif | |
165 | ||
6e592385 WD |
166 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
167 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
168 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 169 | |
2d966958 WD |
170 | char BootFile[128]; /* Boot File name */ |
171 | ||
643d1ab2 | 172 | #if defined(CONFIG_CMD_PING) |
53677ef1 | 173 | IPaddr_t NetPingIP; /* the ip address to ping */ |
73a8b27c WD |
174 | |
175 | static void PingStart(void); | |
176 | #endif | |
177 | ||
643d1ab2 | 178 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
179 | static void CDPStart(void); |
180 | #endif | |
181 | ||
643d1ab2 | 182 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
183 | IPaddr_t NetNtpServerIP; /* NTP server IP address */ |
184 | int NetTimeOffset=0; /* offset time from UTC */ | |
185 | #endif | |
186 | ||
68ceb29e WD |
187 | #ifdef CONFIG_NETCONSOLE |
188 | void NcStart(void); | |
189 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
190 | #endif | |
191 | ||
2d966958 WD |
192 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
193 | ||
194 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
195 | ||
196 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
197 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
198 | static ulong timeStart; /* Time base value */ |
199 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
200 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
201 | ||
202 | static int net_check_prereq (proto_t protocol); | |
203 | ||
73a8b27c WD |
204 | /**********************************************************************/ |
205 | ||
206 | IPaddr_t NetArpWaitPacketIP; | |
207 | IPaddr_t NetArpWaitReplyIP; | |
208 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
b2f50807 | 209 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ |
73a8b27c | 210 | int NetArpWaitTxPacketSize; |
53677ef1 | 211 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; |
73a8b27c WD |
212 | ulong NetArpWaitTimerStart; |
213 | int NetArpWaitTry; | |
214 | ||
6e592385 | 215 | void ArpRequest (void) |
73a8b27c WD |
216 | { |
217 | int i; | |
218 | volatile uchar *pkt; | |
6e592385 | 219 | ARP_t *arp; |
73a8b27c WD |
220 | |
221 | #ifdef ET_DEBUG | |
6e592385 | 222 | printf ("ARP broadcast %d\n", NetArpWaitTry); |
73a8b27c WD |
223 | #endif |
224 | pkt = NetTxPacket; | |
225 | ||
6e592385 | 226 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 227 | |
6e592385 | 228 | arp = (ARP_t *) pkt; |
73a8b27c | 229 | |
6e592385 WD |
230 | arp->ar_hrd = htons (ARP_ETHER); |
231 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
232 | arp->ar_hln = 6; |
233 | arp->ar_pln = 4; | |
6e592385 | 234 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 235 | |
b2f50807 WD |
236 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
237 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
6e592385 WD |
238 | for (i = 10; i < 16; ++i) { |
239 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
240 | } |
241 | ||
6e592385 WD |
242 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
243 | (NetOurIP & NetOurSubnetMask)) { | |
244 | if (NetOurGatewayIP == 0) { | |
245 | puts ("## Warning: gatewayip needed but not set\n"); | |
d509b812 WD |
246 | NetArpWaitReplyIP = NetArpWaitPacketIP; |
247 | } else { | |
248 | NetArpWaitReplyIP = NetOurGatewayIP; | |
6e592385 | 249 | } |
6e592385 WD |
250 | } else { |
251 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
252 | } | |
73a8b27c | 253 | |
6e592385 WD |
254 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
255 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
256 | } |
257 | ||
258 | void ArpTimeoutCheck(void) | |
259 | { | |
260 | ulong t; | |
261 | ||
262 | if (!NetArpWaitPacketIP) | |
263 | return; | |
264 | ||
265 | t = get_timer(0); | |
266 | ||
267 | /* check for arp timeout */ | |
49f3bdbb | 268 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { |
73a8b27c WD |
269 | NetArpWaitTry++; |
270 | ||
271 | if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { | |
272 | puts ("\nARP Retry count exceeded; starting again\n"); | |
273 | NetArpWaitTry = 0; | |
274 | NetStartAgain(); | |
275 | } else { | |
276 | NetArpWaitTimerStart = t; | |
277 | ArpRequest(); | |
278 | } | |
279 | } | |
280 | } | |
281 | ||
da95427c | 282 | static void |
2f70c49e HS |
283 | NetInitLoop(proto_t protocol) |
284 | { | |
da95427c | 285 | static int env_changed_id = 0; |
2f70c49e HS |
286 | bd_t *bd = gd->bd; |
287 | int env_id = get_env_id (); | |
288 | ||
289 | /* update only when the environment has changed */ | |
3c172c4f | 290 | if (env_changed_id != env_id) { |
2f70c49e HS |
291 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); |
292 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); | |
293 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
2f70c49e | 294 | NetServerIP = getenv_IPaddr ("serverip"); |
2f70c49e | 295 | NetOurNativeVLAN = getenv_VLAN("nvlan"); |
3c172c4f | 296 | NetOurVLAN = getenv_VLAN("vlan"); |
1a32bf41 RG |
297 | #if defined(CONFIG_CMD_DNS) |
298 | NetOurDNSIP = getenv_IPaddr("dnsip"); | |
299 | #endif | |
3c172c4f | 300 | env_changed_id = env_id; |
2f70c49e | 301 | } |
3c172c4f | 302 | |
da95427c | 303 | return; |
2f70c49e HS |
304 | } |
305 | ||
2d966958 WD |
306 | /**********************************************************************/ |
307 | /* | |
308 | * Main network processing loop. | |
309 | */ | |
310 | ||
311 | int | |
312 | NetLoop(proto_t protocol) | |
313 | { | |
2d966958 WD |
314 | bd_t *bd = gd->bd; |
315 | ||
316 | #ifdef CONFIG_NET_MULTI | |
317 | NetRestarted = 0; | |
318 | NetDevExists = 0; | |
319 | #endif | |
320 | ||
73a8b27c WD |
321 | /* XXX problem with bss workaround */ |
322 | NetArpWaitPacketMAC = NULL; | |
323 | NetArpWaitTxPacket = NULL; | |
324 | NetArpWaitPacketIP = 0; | |
325 | NetArpWaitReplyIP = 0; | |
326 | NetArpWaitTxPacket = NULL; | |
327 | NetTxPacket = NULL; | |
328 | ||
2d966958 WD |
329 | if (!NetTxPacket) { |
330 | int i; | |
2d966958 WD |
331 | /* |
332 | * Setup packet buffers, aligned correctly. | |
333 | */ | |
334 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
335 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
336 | for (i = 0; i < PKTBUFSRX; i++) { | |
337 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
338 | } | |
73a8b27c WD |
339 | } |
340 | ||
341 | if (!NetArpWaitTxPacket) { | |
342 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
343 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
344 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
345 | } |
346 | ||
347 | eth_halt(); | |
6e592385 | 348 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 349 | eth_set_current(); |
6e592385 | 350 | #endif |
b1bf6f2c WD |
351 | if (eth_init(bd) < 0) { |
352 | eth_halt(); | |
6e592385 | 353 | return(-1); |
b1bf6f2c | 354 | } |
2d966958 WD |
355 | |
356 | restart: | |
357 | #ifdef CONFIG_NET_MULTI | |
358 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
359 | #else | |
95823ca0 | 360 | eth_getenv_enetaddr("ethaddr", NetOurEther); |
2d966958 WD |
361 | #endif |
362 | ||
363 | NetState = NETLOOP_CONTINUE; | |
364 | ||
365 | /* | |
366 | * Start the ball rolling with the given start function. From | |
367 | * here on, this code is a state machine driven by received | |
368 | * packets and timer events. | |
369 | */ | |
2f70c49e | 370 | NetInitLoop(protocol); |
2d966958 WD |
371 | |
372 | switch (net_check_prereq (protocol)) { | |
373 | case 1: | |
374 | /* network not configured */ | |
b1bf6f2c | 375 | eth_halt(); |
1d0350ed | 376 | return (-1); |
2d966958 WD |
377 | |
378 | #ifdef CONFIG_NET_MULTI | |
379 | case 2: | |
380 | /* network device not configured */ | |
381 | break; | |
382 | #endif /* CONFIG_NET_MULTI */ | |
383 | ||
384 | case 0: | |
385 | #ifdef CONFIG_NET_MULTI | |
386 | NetDevExists = 1; | |
387 | #endif | |
388 | switch (protocol) { | |
389 | case TFTP: | |
390 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 391 | TftpStart(); |
2d966958 WD |
392 | break; |
393 | ||
643d1ab2 | 394 | #if defined(CONFIG_CMD_DHCP) |
2d966958 | 395 | case DHCP: |
d407bf52 | 396 | BootpTry = 0; |
2d966958 WD |
397 | DhcpRequest(); /* Basically same as BOOTP */ |
398 | break; | |
610f2e9c | 399 | #endif |
2d966958 WD |
400 | |
401 | case BOOTP: | |
402 | BootpTry = 0; | |
403 | BootpRequest (); | |
404 | break; | |
405 | ||
406 | case RARP: | |
407 | RarpTry = 0; | |
408 | RarpRequest (); | |
409 | break; | |
643d1ab2 | 410 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
411 | case PING: |
412 | PingStart(); | |
413 | break; | |
cbd8a35c | 414 | #endif |
643d1ab2 | 415 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
416 | case NFS: |
417 | NfsStart(); | |
418 | break; | |
a3d991bd | 419 | #endif |
643d1ab2 | 420 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
421 | case CDP: |
422 | CDPStart(); | |
423 | break; | |
68ceb29e WD |
424 | #endif |
425 | #ifdef CONFIG_NETCONSOLE | |
426 | case NETCONS: | |
427 | NcStart(); | |
428 | break; | |
ea287deb | 429 | #endif |
643d1ab2 | 430 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
431 | case SNTP: |
432 | SntpStart(); | |
433 | break; | |
1a32bf41 RG |
434 | #endif |
435 | #if defined(CONFIG_CMD_DNS) | |
436 | case DNS: | |
437 | DnsStart(); | |
438 | break; | |
73a8b27c | 439 | #endif |
2d966958 WD |
440 | default: |
441 | break; | |
442 | } | |
443 | ||
444 | NetBootFileXferSize = 0; | |
445 | break; | |
446 | } | |
447 | ||
643d1ab2 | 448 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 449 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) |
fc3e2165 | 450 | /* |
42d1f039 | 451 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 452 | */ |
6d0f6bcf | 453 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
454 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
455 | } else { | |
456 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
457 | } | |
6d0f6bcf | 458 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 459 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
460 | |
461 | /* | |
462 | * Main packet reception loop. Loop receiving packets until | |
59acc296 | 463 | * someone sets `NetState' to a state that terminates. |
2d966958 WD |
464 | */ |
465 | for (;;) { | |
466 | WATCHDOG_RESET(); | |
467 | #ifdef CONFIG_SHOW_ACTIVITY | |
468 | { | |
469 | extern void show_activity(int arg); | |
470 | show_activity(1); | |
471 | } | |
472 | #endif | |
473 | /* | |
474 | * Check the ethernet for a new packet. The ethernet | |
475 | * receive routine will process it. | |
476 | */ | |
40cb90ee | 477 | eth_rx(); |
2d966958 WD |
478 | |
479 | /* | |
480 | * Abort if ctrl-c was pressed. | |
481 | */ | |
482 | if (ctrlc()) { | |
8bde7f77 | 483 | eth_halt(); |
4b9206ed | 484 | puts ("\nAbort\n"); |
1d0350ed | 485 | return (-1); |
2d966958 WD |
486 | } |
487 | ||
73a8b27c | 488 | ArpTimeoutCheck(); |
2d966958 WD |
489 | |
490 | /* | |
491 | * Check for a timeout, and run the timeout handler | |
492 | * if we have one. | |
493 | */ | |
e0ac62d7 | 494 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
495 | thand_f *x; |
496 | ||
643d1ab2 | 497 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 498 | # if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
63153492 | 499 | defined(CONFIG_STATUS_LED) && \ |
59acc296 | 500 | defined(STATUS_LED_RED) |
fc3e2165 | 501 | /* |
42d1f039 | 502 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 503 | */ |
6d0f6bcf | 504 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
505 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
506 | } else { | |
507 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
508 | } | |
6d0f6bcf | 509 | # endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 510 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
511 | x = timeHandler; |
512 | timeHandler = (thand_f *)0; | |
513 | (*x)(); | |
514 | } | |
515 | ||
516 | ||
517 | switch (NetState) { | |
518 | ||
519 | case NETLOOP_RESTART: | |
520 | #ifdef CONFIG_NET_MULTI | |
521 | NetRestarted = 1; | |
522 | #endif | |
523 | goto restart; | |
524 | ||
525 | case NETLOOP_SUCCESS: | |
526 | if (NetBootFileXferSize > 0) { | |
f34024d4 | 527 | char buf[20]; |
2d966958 WD |
528 | printf("Bytes transferred = %ld (%lx hex)\n", |
529 | NetBootFileXferSize, | |
530 | NetBootFileXferSize); | |
f34024d4 | 531 | sprintf(buf, "%lX", NetBootFileXferSize); |
2d966958 | 532 | setenv("filesize", buf); |
a3d991bd WD |
533 | |
534 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
535 | setenv("fileaddr", buf); | |
2d966958 WD |
536 | } |
537 | eth_halt(); | |
538 | return NetBootFileXferSize; | |
539 | ||
540 | case NETLOOP_FAIL: | |
1d0350ed | 541 | return (-1); |
2d966958 WD |
542 | } |
543 | } | |
544 | } | |
545 | ||
546 | /**********************************************************************/ | |
547 | ||
548 | static void | |
549 | startAgainTimeout(void) | |
550 | { | |
551 | NetState = NETLOOP_RESTART; | |
552 | } | |
553 | ||
554 | static void | |
555 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
556 | { | |
557 | /* Totally ignore the packet */ | |
558 | } | |
559 | ||
6e592385 | 560 | void NetStartAgain (void) |
2d966958 | 561 | { |
6e592385 WD |
562 | char *nretry; |
563 | int noretry = 0, once = 0; | |
a3d991bd | 564 | |
6e592385 WD |
565 | if ((nretry = getenv ("netretry")) != NULL) { |
566 | noretry = (strcmp (nretry, "no") == 0); | |
567 | once = (strcmp (nretry, "once") == 0); | |
568 | } | |
569 | if (noretry) { | |
570 | eth_halt (); | |
a3d991bd WD |
571 | NetState = NETLOOP_FAIL; |
572 | return; | |
573 | } | |
2d966958 | 574 | #ifndef CONFIG_NET_MULTI |
49f3bdbb | 575 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
576 | NetSetHandler (startAgainHandler); |
577 | #else /* !CONFIG_NET_MULTI*/ | |
578 | eth_halt (); | |
8b0c5c12 | 579 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
6e592385 | 580 | eth_try_another (!NetRestarted); |
8b0c5c12 | 581 | #endif |
6e592385 WD |
582 | eth_init (gd->bd); |
583 | if (NetRestartWrap) { | |
2d966958 | 584 | NetRestartWrap = 0; |
6e592385 | 585 | if (NetDevExists && !once) { |
49f3bdbb | 586 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
587 | NetSetHandler (startAgainHandler); |
588 | } else { | |
2d966958 WD |
589 | NetState = NETLOOP_FAIL; |
590 | } | |
6e592385 | 591 | } else { |
2d966958 WD |
592 | NetState = NETLOOP_RESTART; |
593 | } | |
6e592385 | 594 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
595 | } |
596 | ||
597 | /**********************************************************************/ | |
598 | /* | |
599 | * Miscelaneous bits. | |
600 | */ | |
601 | ||
602 | void | |
603 | NetSetHandler(rxhand_f * f) | |
604 | { | |
605 | packetHandler = f; | |
606 | } | |
607 | ||
608 | ||
609 | void | |
3e01d75f | 610 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
611 | { |
612 | if (iv == 0) { | |
613 | timeHandler = (thand_f *)0; | |
614 | } else { | |
615 | timeHandler = f; | |
e0ac62d7 WD |
616 | timeStart = get_timer(0); |
617 | timeDelta = iv; | |
2d966958 WD |
618 | } |
619 | } | |
620 | ||
621 | ||
622 | void | |
623 | NetSendPacket(volatile uchar * pkt, int len) | |
624 | { | |
625 | (void) eth_send(pkt, len); | |
626 | } | |
627 | ||
73a8b27c WD |
628 | int |
629 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
630 | { | |
a3d991bd WD |
631 | uchar *pkt; |
632 | ||
73a8b27c WD |
633 | /* convert to new style broadcast */ |
634 | if (dest == 0) | |
635 | dest = 0xFFFFFFFF; | |
636 | ||
637 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
638 | if (dest == 0xFFFFFFFF) | |
639 | ether = NetBcastAddr; | |
640 | ||
641 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
642 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
643 | ||
644 | #ifdef ET_DEBUG | |
645 | printf("sending ARP for %08lx\n", dest); | |
646 | #endif | |
73a8b27c WD |
647 | NetArpWaitPacketIP = dest; |
648 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
649 | |
650 | pkt = NetArpWaitTxPacket; | |
651 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
652 | ||
653 | NetSetIP (pkt, dest, dport, sport, len); | |
654 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
655 | |
656 | /* size of the waiting packet */ | |
a3d991bd | 657 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
658 | |
659 | /* and do the ARP request */ | |
660 | NetArpWaitTry = 1; | |
661 | NetArpWaitTimerStart = get_timer(0); | |
662 | ArpRequest(); | |
663 | return 1; /* waiting */ | |
664 | } | |
665 | ||
666 | #ifdef ET_DEBUG | |
95823ca0 | 667 | printf("sending UDP to %08lx/%pM\n", dest, ether); |
73a8b27c WD |
668 | #endif |
669 | ||
a3d991bd WD |
670 | pkt = (uchar *)NetTxPacket; |
671 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
672 | NetSetIP (pkt, dest, dport, sport, len); | |
673 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 674 | |
6e592385 | 675 | return 0; /* transmitted */ |
73a8b27c WD |
676 | } |
677 | ||
643d1ab2 | 678 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
679 | static ushort PingSeqNo; |
680 | ||
681 | int PingSend(void) | |
682 | { | |
683 | static uchar mac[6]; | |
684 | volatile IP_t *ip; | |
685 | volatile ushort *s; | |
a3d991bd | 686 | uchar *pkt; |
73a8b27c WD |
687 | |
688 | /* XXX always send arp request */ | |
689 | ||
690 | memcpy(mac, NetEtherNullAddr, 6); | |
691 | ||
692 | #ifdef ET_DEBUG | |
693 | printf("sending ARP for %08lx\n", NetPingIP); | |
694 | #endif | |
695 | ||
696 | NetArpWaitPacketIP = NetPingIP; | |
697 | NetArpWaitPacketMAC = mac; | |
698 | ||
a3d991bd WD |
699 | pkt = NetArpWaitTxPacket; |
700 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 701 | |
a3d991bd | 702 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
703 | |
704 | /* | |
705 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
706 | */ | |
707 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
708 | ip->ip_tos = 0; | |
709 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
710 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 711 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
73a8b27c WD |
712 | ip->ip_ttl = 255; |
713 | ip->ip_p = 0x01; /* ICMP */ | |
714 | ip->ip_sum = 0; | |
715 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
716 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
717 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
718 | ||
719 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
720 | s[0] = htons(0x0800); /* echo-request, code */ | |
721 | s[1] = 0; /* checksum */ | |
53677ef1 | 722 | s[2] = 0; /* identifier */ |
73a8b27c WD |
723 | s[3] = htons(PingSeqNo++); /* sequence number */ |
724 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
725 | ||
726 | /* size of the waiting packet */ | |
a3d991bd | 727 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
728 | |
729 | /* and do the ARP request */ | |
730 | NetArpWaitTry = 1; | |
731 | NetArpWaitTimerStart = get_timer(0); | |
732 | ArpRequest(); | |
733 | return 1; /* waiting */ | |
734 | } | |
735 | ||
736 | static void | |
737 | PingTimeout (void) | |
738 | { | |
739 | eth_halt(); | |
740 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
741 | } | |
2d966958 | 742 | |
73a8b27c WD |
743 | static void |
744 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
745 | { | |
746 | IPaddr_t tmp; | |
747 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
748 | ||
749 | tmp = NetReadIP((void *)&ip->ip_src); | |
750 | if (tmp != NetPingIP) | |
751 | return; | |
752 | ||
753 | NetState = NETLOOP_SUCCESS; | |
754 | } | |
755 | ||
756 | static void PingStart(void) | |
757 | { | |
a3d991bd WD |
758 | #if defined(CONFIG_NET_MULTI) |
759 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 760 | #endif /* CONFIG_NET_MULTI */ |
49f3bdbb | 761 | NetSetTimeout (10000UL, PingTimeout); |
73a8b27c WD |
762 | NetSetHandler (PingHandler); |
763 | ||
764 | PingSend(); | |
765 | } | |
610f2e9c | 766 | #endif |
2d966958 | 767 | |
643d1ab2 | 768 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
769 | |
770 | #define CDP_DEVICE_ID_TLV 0x0001 | |
771 | #define CDP_ADDRESS_TLV 0x0002 | |
772 | #define CDP_PORT_ID_TLV 0x0003 | |
773 | #define CDP_CAPABILITIES_TLV 0x0004 | |
774 | #define CDP_VERSION_TLV 0x0005 | |
775 | #define CDP_PLATFORM_TLV 0x0006 | |
776 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
777 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
778 | #define CDP_TRIGGER_TLV 0x000f | |
779 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
780 | #define CDP_SYSNAME_TLV 0x0014 | |
781 | #define CDP_SYSOBJECT_TLV 0x0015 | |
782 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
783 | ||
49f3bdbb | 784 | #define CDP_TIMEOUT 250UL /* one packet every 250ms */ |
a3d991bd WD |
785 | |
786 | static int CDPSeq; | |
787 | static int CDPOK; | |
788 | ||
789 | ushort CDPNativeVLAN; | |
790 | ushort CDPApplianceVLAN; | |
791 | ||
792 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
793 | ||
794 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
795 | { | |
796 | ushort csum; | |
797 | int odd; | |
798 | ulong result = 0; | |
799 | ushort leftover; | |
77ddac94 | 800 | ushort *p; |
a3d991bd WD |
801 | |
802 | if (len > 0) { | |
803 | odd = 1 & (ulong)buff; | |
804 | if (odd) { | |
805 | result = *buff << 8; | |
806 | len--; | |
807 | buff++; | |
808 | } | |
809 | while (len > 1) { | |
77ddac94 WD |
810 | p = (ushort *)buff; |
811 | result += *p++; | |
812 | buff = (uchar *)p; | |
a3d991bd WD |
813 | if (result & 0x80000000) |
814 | result = (result & 0xFFFF) + (result >> 16); | |
815 | len -= 2; | |
816 | } | |
817 | if (len) { | |
818 | leftover = (signed short)(*(const signed char *)buff); | |
3ada834e WD |
819 | /* CISCO SUCKS big time! (and blows too): |
820 | * CDP uses the IP checksum algorithm with a twist; | |
821 | * for the last byte it *sign* extends and sums. | |
822 | */ | |
a3d991bd WD |
823 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); |
824 | } | |
825 | while (result >> 16) | |
826 | result = (result & 0xFFFF) + (result >> 16); | |
827 | ||
828 | if (odd) | |
829 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
830 | } | |
831 | ||
832 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
833 | result = (result & 0xffff) + (result >> 16); | |
834 | /* add up 16-bit and 2-bit for 16+c bit */ | |
835 | result = (result & 0xffff) + (result >> 16); | |
836 | /* add up carry.. */ | |
837 | result = (result & 0xffff) + (result >> 16); | |
838 | ||
839 | /* negate */ | |
840 | csum = ~(ushort)result; | |
841 | ||
842 | /* run time endian detection */ | |
843 | if (csum != htons(csum)) /* little endian */ | |
844 | csum = htons(csum); | |
845 | ||
846 | return csum; | |
847 | } | |
848 | ||
849 | int CDPSendTrigger(void) | |
850 | { | |
851 | volatile uchar *pkt; | |
852 | volatile ushort *s; | |
853 | volatile ushort *cp; | |
854 | Ethernet_t *et; | |
a3d991bd WD |
855 | int len; |
856 | ushort chksum; | |
6e592385 WD |
857 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
858 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
859 | char buf[32]; | |
860 | #endif | |
a3d991bd WD |
861 | |
862 | pkt = NetTxPacket; | |
863 | et = (Ethernet_t *)pkt; | |
864 | ||
865 | /* NOTE: trigger sent not on any VLAN */ | |
866 | ||
867 | /* form ethernet header */ | |
868 | memcpy(et->et_dest, NetCDPAddr, 6); | |
869 | memcpy(et->et_src, NetOurEther, 6); | |
870 | ||
871 | pkt += ETHER_HDR_SIZE; | |
872 | ||
873 | /* SNAP header */ | |
874 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
875 | pkt += sizeof(CDP_SNAP_hdr); | |
876 | ||
877 | /* CDP header */ | |
878 | *pkt++ = 0x02; /* CDP version 2 */ | |
879 | *pkt++ = 180; /* TTL */ | |
880 | s = (volatile ushort *)pkt; | |
881 | cp = s; | |
882 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
883 | ||
884 | /* CDP fields */ | |
885 | #ifdef CONFIG_CDP_DEVICE_ID | |
886 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
887 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
95823ca0 | 888 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%pm", NetOurEther); |
a3d991bd WD |
889 | memcpy((uchar *)s, buf, 16); |
890 | s += 16 / 2; | |
891 | #endif | |
892 | ||
893 | #ifdef CONFIG_CDP_PORT_ID | |
894 | *s++ = htons(CDP_PORT_ID_TLV); | |
895 | memset(buf, 0, sizeof(buf)); | |
896 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
897 | len = strlen(buf); | |
898 | if (len & 1) /* make it even */ | |
899 | len++; | |
900 | *s++ = htons(len + 4); | |
901 | memcpy((uchar *)s, buf, len); | |
902 | s += len / 2; | |
903 | #endif | |
904 | ||
905 | #ifdef CONFIG_CDP_CAPABILITIES | |
906 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
907 | *s++ = htons(8); | |
908 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
909 | s += 2; | |
910 | #endif | |
911 | ||
912 | #ifdef CONFIG_CDP_VERSION | |
913 | *s++ = htons(CDP_VERSION_TLV); | |
914 | memset(buf, 0, sizeof(buf)); | |
915 | strcpy(buf, CONFIG_CDP_VERSION); | |
916 | len = strlen(buf); | |
917 | if (len & 1) /* make it even */ | |
918 | len++; | |
919 | *s++ = htons(len + 4); | |
920 | memcpy((uchar *)s, buf, len); | |
921 | s += len / 2; | |
922 | #endif | |
923 | ||
924 | #ifdef CONFIG_CDP_PLATFORM | |
925 | *s++ = htons(CDP_PLATFORM_TLV); | |
926 | memset(buf, 0, sizeof(buf)); | |
927 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
928 | len = strlen(buf); | |
929 | if (len & 1) /* make it even */ | |
930 | len++; | |
931 | *s++ = htons(len + 4); | |
932 | memcpy((uchar *)s, buf, len); | |
933 | s += len / 2; | |
934 | #endif | |
935 | ||
936 | #ifdef CONFIG_CDP_TRIGGER | |
937 | *s++ = htons(CDP_TRIGGER_TLV); | |
938 | *s++ = htons(8); | |
939 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
940 | s += 2; | |
941 | #endif | |
942 | ||
943 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
944 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
945 | *s++ = htons(6); | |
946 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
947 | #endif | |
948 | ||
949 | /* length of ethernet packet */ | |
950 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
951 | et->et_protlen = htons(len); | |
952 | ||
953 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
954 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
955 | if (chksum == 0) | |
956 | chksum = 0xFFFF; | |
957 | *cp = htons(chksum); | |
958 | ||
959 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
960 | return 0; | |
961 | } | |
962 | ||
963 | static void | |
964 | CDPTimeout (void) | |
965 | { | |
966 | CDPSeq++; | |
967 | ||
968 | if (CDPSeq < 3) { | |
969 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
970 | CDPSendTrigger(); | |
971 | return; | |
972 | } | |
973 | ||
974 | /* if not OK try again */ | |
975 | if (!CDPOK) | |
976 | NetStartAgain(); | |
977 | else | |
978 | NetState = NETLOOP_SUCCESS; | |
979 | } | |
980 | ||
981 | static void | |
982 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
983 | { | |
984 | /* nothing */ | |
985 | } | |
986 | ||
987 | static void | |
988 | CDPHandler(const uchar * pkt, unsigned len) | |
989 | { | |
990 | const uchar *t; | |
991 | const ushort *ss; | |
992 | ushort type, tlen; | |
993 | uchar applid; | |
994 | ushort vlan, nvlan; | |
995 | ||
996 | /* minimum size? */ | |
997 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
998 | goto pkt_short; | |
999 | ||
1000 | /* check for valid CDP SNAP header */ | |
1001 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
1002 | return; | |
1003 | ||
1004 | pkt += sizeof(CDP_SNAP_hdr); | |
1005 | len -= sizeof(CDP_SNAP_hdr); | |
1006 | ||
1007 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
1008 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
1009 | return; | |
1010 | ||
1011 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
1012 | if (pkt[0] != 0x02) | |
1013 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
1014 | pkt[0] & 0xff); | |
1015 | ||
1016 | if (CDP_compute_csum(pkt, len) != 0) | |
1017 | return; | |
1018 | ||
1019 | pkt += 4; | |
1020 | len -= 4; | |
1021 | ||
1022 | vlan = htons(-1); | |
1023 | nvlan = htons(-1); | |
1024 | while (len > 0) { | |
1025 | if (len < 4) | |
1026 | goto pkt_short; | |
1027 | ||
1028 | ss = (const ushort *)pkt; | |
1029 | type = ntohs(ss[0]); | |
1030 | tlen = ntohs(ss[1]); | |
1031 | if (tlen > len) { | |
1032 | goto pkt_short; | |
1033 | } | |
1034 | ||
1035 | pkt += tlen; | |
1036 | len -= tlen; | |
1037 | ||
1038 | ss += 2; /* point ss to the data of the TLV */ | |
1039 | tlen -= 4; | |
1040 | ||
1041 | switch (type) { | |
1042 | case CDP_DEVICE_ID_TLV: | |
1043 | break; | |
1044 | case CDP_ADDRESS_TLV: | |
1045 | break; | |
1046 | case CDP_PORT_ID_TLV: | |
1047 | break; | |
1048 | case CDP_CAPABILITIES_TLV: | |
1049 | break; | |
1050 | case CDP_VERSION_TLV: | |
1051 | break; | |
1052 | case CDP_PLATFORM_TLV: | |
1053 | break; | |
1054 | case CDP_NATIVE_VLAN_TLV: | |
1055 | nvlan = *ss; | |
1056 | break; | |
1057 | case CDP_APPLIANCE_VLAN_TLV: | |
1058 | t = (const uchar *)ss; | |
1059 | while (tlen > 0) { | |
1060 | if (tlen < 3) | |
1061 | goto pkt_short; | |
1062 | ||
1063 | applid = t[0]; | |
1064 | ss = (const ushort *)(t + 1); | |
1065 | ||
1066 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1067 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1068 | vlan = *ss; | |
1069 | #else | |
1070 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1071 | #endif | |
1072 | t += 3; tlen -= 3; | |
1073 | } | |
1074 | break; | |
1075 | case CDP_TRIGGER_TLV: | |
1076 | break; | |
1077 | case CDP_POWER_CONSUMPTION_TLV: | |
1078 | break; | |
1079 | case CDP_SYSNAME_TLV: | |
1080 | break; | |
1081 | case CDP_SYSOBJECT_TLV: | |
1082 | break; | |
1083 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1084 | break; | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | CDPApplianceVLAN = vlan; | |
1089 | CDPNativeVLAN = nvlan; | |
1090 | ||
1091 | CDPOK = 1; | |
1092 | return; | |
1093 | ||
1094 | pkt_short: | |
1095 | printf("** CDP packet is too short\n"); | |
1096 | return; | |
1097 | } | |
1098 | ||
1099 | static void CDPStart(void) | |
1100 | { | |
1101 | #if defined(CONFIG_NET_MULTI) | |
1102 | printf ("Using %s device\n", eth_get_name()); | |
1103 | #endif | |
1104 | CDPSeq = 0; | |
1105 | CDPOK = 0; | |
1106 | ||
1107 | CDPNativeVLAN = htons(-1); | |
1108 | CDPApplianceVLAN = htons(-1); | |
1109 | ||
1110 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1111 | NetSetHandler (CDPDummyHandler); | |
1112 | ||
1113 | CDPSendTrigger(); | |
1114 | } | |
610f2e9c | 1115 | #endif |
a3d991bd WD |
1116 | |
1117 | ||
2d966958 | 1118 | void |
a3d991bd | 1119 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1120 | { |
1121 | Ethernet_t *et; | |
1122 | IP_t *ip; | |
1123 | ARP_t *arp; | |
1124 | IPaddr_t tmp; | |
1125 | int x; | |
a3d991bd | 1126 | uchar *pkt; |
643d1ab2 | 1127 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1128 | int iscdp; |
1129 | #endif | |
1130 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1131 | ||
1132 | #ifdef ET_DEBUG | |
1133 | printf("packet received\n"); | |
1134 | #endif | |
2d966958 | 1135 | |
d9bec9f4 MF |
1136 | NetRxPacket = inpkt; |
1137 | NetRxPacketLen = len; | |
a3d991bd WD |
1138 | et = (Ethernet_t *)inpkt; |
1139 | ||
1140 | /* too small packet? */ | |
1141 | if (len < ETHER_HDR_SIZE) | |
1142 | return; | |
1143 | ||
f85b6071 RJ |
1144 | #ifdef CONFIG_API |
1145 | if (push_packet) { | |
1146 | (*push_packet)(inpkt, len); | |
1147 | return; | |
1148 | } | |
1149 | #endif | |
1150 | ||
643d1ab2 | 1151 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1152 | /* keep track if packet is CDP */ |
1153 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1154 | #endif | |
1155 | ||
1156 | myvlanid = ntohs(NetOurVLAN); | |
1157 | if (myvlanid == (ushort)-1) | |
1158 | myvlanid = VLAN_NONE; | |
1159 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1160 | if (mynvlanid == (ushort)-1) | |
1161 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1162 | |
1163 | x = ntohs(et->et_protlen); | |
1164 | ||
a3d991bd WD |
1165 | #ifdef ET_DEBUG |
1166 | printf("packet received\n"); | |
1167 | #endif | |
1168 | ||
2d966958 WD |
1169 | if (x < 1514) { |
1170 | /* | |
1171 | * Got a 802 packet. Check the other protocol field. | |
1172 | */ | |
1173 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1174 | |
1175 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1176 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1177 | |
1178 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1179 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1180 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1181 | |
1182 | } else { /* VLAN packet */ | |
1183 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1184 | ||
1185 | #ifdef ET_DEBUG | |
1186 | printf("VLAN packet received\n"); | |
1187 | #endif | |
1188 | /* too small packet? */ | |
1189 | if (len < VLAN_ETHER_HDR_SIZE) | |
1190 | return; | |
1191 | ||
1192 | /* if no VLAN active */ | |
1193 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
643d1ab2 | 1194 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1195 | && iscdp == 0 |
1196 | #endif | |
1197 | ) | |
1198 | return; | |
1199 | ||
1200 | cti = ntohs(vet->vet_tag); | |
1201 | vlanid = cti & VLAN_IDMASK; | |
1202 | x = ntohs(vet->vet_type); | |
1203 | ||
1204 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1205 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1206 | } |
1207 | ||
1208 | #ifdef ET_DEBUG | |
1209 | printf("Receive from protocol 0x%x\n", x); | |
1210 | #endif | |
1211 | ||
643d1ab2 | 1212 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1213 | if (iscdp) { |
1214 | CDPHandler((uchar *)ip, len); | |
1215 | return; | |
1216 | } | |
1217 | #endif | |
1218 | ||
1219 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1220 | if (vlanid == VLAN_NONE) | |
1221 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1222 | /* not matched? */ | |
1223 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1224 | return; | |
1225 | } | |
1226 | ||
2d966958 WD |
1227 | switch (x) { |
1228 | ||
1229 | case PROT_ARP: | |
1230 | /* | |
1231 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1232 | * - REQUEST packets will be answered by sending our |
1233 | * IP address - if we know it. | |
1234 | * - REPLY packates are expected only after we asked | |
1235 | * for the TFTP server's or the gateway's ethernet | |
1236 | * address; so if we receive such a packet, we set | |
1237 | * the server ethernet address | |
2d966958 WD |
1238 | */ |
1239 | #ifdef ET_DEBUG | |
4b9206ed | 1240 | puts ("Got ARP\n"); |
2d966958 WD |
1241 | #endif |
1242 | arp = (ARP_t *)ip; | |
1243 | if (len < ARP_HDR_SIZE) { | |
1244 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1245 | return; | |
1246 | } | |
1247 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1248 | return; | |
1249 | } | |
1250 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1251 | return; | |
1252 | } | |
1253 | if (arp->ar_hln != 6) { | |
1254 | return; | |
1255 | } | |
1256 | if (arp->ar_pln != 4) { | |
1257 | return; | |
1258 | } | |
1259 | ||
1260 | if (NetOurIP == 0) { | |
1261 | return; | |
1262 | } | |
1263 | ||
1264 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | switch (ntohs(arp->ar_op)) { | |
1269 | case ARPOP_REQUEST: /* reply with our IP address */ | |
1270 | #ifdef ET_DEBUG | |
4b9206ed | 1271 | puts ("Got ARP REQUEST, return our IP\n"); |
2d966958 | 1272 | #endif |
a3d991bd WD |
1273 | pkt = (uchar *)et; |
1274 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1275 | arp->ar_op = htons(ARPOP_REPLY); |
1276 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1277 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1278 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1279 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1280 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1281 | return; |
73a8b27c WD |
1282 | |
1283 | case ARPOP_REPLY: /* arp reply */ | |
1284 | /* are we waiting for a reply */ | |
1285 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1286 | break; | |
2d966958 | 1287 | #ifdef ET_DEBUG |
95823ca0 MF |
1288 | printf("Got ARP REPLY, set server/gtwy eth addr (%pM)\n", |
1289 | arp->ar_data); | |
2d966958 | 1290 | #endif |
73a8b27c WD |
1291 | |
1292 | tmp = NetReadIP(&arp->ar_data[6]); | |
1293 | ||
1294 | /* matched waiting packet's address */ | |
1295 | if (tmp == NetArpWaitReplyIP) { | |
1296 | #ifdef ET_DEBUG | |
4b9206ed | 1297 | puts ("Got it\n"); |
73a8b27c WD |
1298 | #endif |
1299 | /* save address for later use */ | |
1300 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1301 | ||
68ceb29e WD |
1302 | #ifdef CONFIG_NETCONSOLE |
1303 | (*packetHandler)(0,0,0,0); | |
1304 | #endif | |
73a8b27c WD |
1305 | /* modify header, and transmit it */ |
1306 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1307 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1308 | ||
1309 | /* no arp request pending now */ | |
1310 | NetArpWaitPacketIP = 0; | |
1311 | NetArpWaitTxPacketSize = 0; | |
1312 | NetArpWaitPacketMAC = NULL; | |
1313 | ||
1314 | } | |
2d966958 WD |
1315 | return; |
1316 | default: | |
1317 | #ifdef ET_DEBUG | |
1318 | printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); | |
1319 | #endif | |
1320 | return; | |
1321 | } | |
289f932c | 1322 | break; |
2d966958 WD |
1323 | |
1324 | case PROT_RARP: | |
1325 | #ifdef ET_DEBUG | |
4b9206ed | 1326 | puts ("Got RARP\n"); |
2d966958 WD |
1327 | #endif |
1328 | arp = (ARP_t *)ip; | |
1329 | if (len < ARP_HDR_SIZE) { | |
1330 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1331 | return; | |
1332 | } | |
1333 | ||
1334 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1335 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1336 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1337 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1338 | ||
4b9206ed | 1339 | puts ("invalid RARP header\n"); |
2d966958 WD |
1340 | } else { |
1341 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1342 | if (NetServerIP == 0) |
1343 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1344 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1345 | ||
1346 | (*packetHandler)(0,0,0,0); | |
1347 | } | |
1348 | break; | |
1349 | ||
1350 | case PROT_IP: | |
1351 | #ifdef ET_DEBUG | |
4b9206ed | 1352 | puts ("Got IP\n"); |
2d966958 WD |
1353 | #endif |
1354 | if (len < IP_HDR_SIZE) { | |
25dbe98a | 1355 | debug ("len bad %d < %lu\n", len, (ulong)IP_HDR_SIZE); |
2d966958 WD |
1356 | return; |
1357 | } | |
1358 | if (len < ntohs(ip->ip_len)) { | |
1359 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1360 | return; | |
1361 | } | |
1362 | len = ntohs(ip->ip_len); | |
1363 | #ifdef ET_DEBUG | |
1364 | printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); | |
1365 | #endif | |
1366 | if ((ip->ip_hl_v & 0xf0) != 0x40) { | |
1367 | return; | |
1368 | } | |
d32c5be5 PT |
1369 | /* Can't deal with fragments */ |
1370 | if (ip->ip_off & htons(IP_OFFS | IP_FLAGS_MFRAG)) { | |
2d966958 WD |
1371 | return; |
1372 | } | |
6b52cfe1 RB |
1373 | /* can't deal with headers > 20 bytes */ |
1374 | if ((ip->ip_hl_v & 0x0f) > 0x05) { | |
1375 | return; | |
1376 | } | |
2d966958 | 1377 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { |
4b9206ed | 1378 | puts ("checksum bad\n"); |
2d966958 WD |
1379 | return; |
1380 | } | |
1381 | tmp = NetReadIP(&ip->ip_dst); | |
1382 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
53a5c424 | 1383 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 1384 | if (Mcast_addr != tmp) |
53a5c424 | 1385 | #endif |
2d966958 WD |
1386 | return; |
1387 | } | |
1388 | /* | |
1389 | * watch for ICMP host redirects | |
1390 | * | |
8bde7f77 WD |
1391 | * There is no real handler code (yet). We just watch |
1392 | * for ICMP host redirect messages. In case anybody | |
1393 | * sees these messages: please contact me | |
1394 | * (wd@denx.de), or - even better - send me the | |
1395 | * necessary fixes :-) | |
2d966958 | 1396 | * |
8bde7f77 WD |
1397 | * Note: in all cases where I have seen this so far |
1398 | * it was a problem with the router configuration, | |
1399 | * for instance when a router was configured in the | |
1400 | * BOOTP reply, but the TFTP server was on the same | |
1401 | * subnet. So this is probably a warning that your | |
1402 | * configuration might be wrong. But I'm not really | |
1403 | * sure if there aren't any other situations. | |
2d966958 WD |
1404 | */ |
1405 | if (ip->ip_p == IPPROTO_ICMP) { | |
1406 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1407 | ||
73a8b27c WD |
1408 | switch (icmph->type) { |
1409 | case ICMP_REDIRECT: | |
90dc6704 WD |
1410 | if (icmph->code != ICMP_REDIR_HOST) |
1411 | return; | |
b6446b67 | 1412 | printf (" ICMP Host Redirect to %pI4 ", &icmph->un.gateway); |
8534bf9a | 1413 | return; |
643d1ab2 | 1414 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
1415 | case ICMP_ECHO_REPLY: |
1416 | /* | |
1417 | * IP header OK. Pass the packet to the current handler. | |
1418 | */ | |
1419 | /* XXX point to ip packet */ | |
1420 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
8534bf9a | 1421 | return; |
83853178 ES |
1422 | case ICMP_ECHO_REQUEST: |
1423 | #ifdef ET_DEBUG | |
1424 | printf ("Got ICMP ECHO REQUEST, return %d bytes \n", | |
1425 | ETHER_HDR_SIZE + len); | |
1426 | #endif | |
1427 | memcpy (&et->et_dest[0], &et->et_src[0], 6); | |
1428 | memcpy (&et->et_src[ 0], NetOurEther, 6); | |
1429 | ||
1430 | ip->ip_sum = 0; | |
1431 | ip->ip_off = 0; | |
1432 | NetCopyIP((void*)&ip->ip_dst, &ip->ip_src); | |
1433 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); | |
1434 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1); | |
1435 | ||
1436 | icmph->type = ICMP_ECHO_REPLY; | |
1437 | icmph->checksum = 0; | |
1438 | icmph->checksum = ~NetCksum((uchar *)icmph, | |
1439 | (len - IP_HDR_SIZE_NO_UDP) >> 1); | |
1440 | (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len); | |
1441 | return; | |
73a8b27c WD |
1442 | #endif |
1443 | default: | |
1444 | return; | |
1445 | } | |
2d966958 WD |
1446 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1447 | return; | |
1448 | } | |
1449 | ||
8534bf9a SR |
1450 | #ifdef CONFIG_UDP_CHECKSUM |
1451 | if (ip->udp_xsum != 0) { | |
b2f50807 | 1452 | ulong xsum; |
8534bf9a SR |
1453 | ushort *sumptr; |
1454 | ushort sumlen; | |
1455 | ||
1456 | xsum = ip->ip_p; | |
1457 | xsum += (ntohs(ip->udp_len)); | |
1458 | xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; | |
1459 | xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; | |
1460 | xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; | |
1461 | xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; | |
1462 | ||
1463 | sumlen = ntohs(ip->udp_len); | |
1464 | sumptr = (ushort *) &(ip->udp_src); | |
1465 | ||
1466 | while (sumlen > 1) { | |
b2f50807 | 1467 | ushort sumdata; |
8534bf9a SR |
1468 | |
1469 | sumdata = *sumptr++; | |
1470 | xsum += ntohs(sumdata); | |
1471 | sumlen -= 2; | |
1472 | } | |
1473 | if (sumlen > 0) { | |
b2f50807 | 1474 | ushort sumdata; |
8534bf9a SR |
1475 | |
1476 | sumdata = *(unsigned char *) sumptr; | |
b2f50807 | 1477 | sumdata = (sumdata << 8) & 0xff00; |
8534bf9a SR |
1478 | xsum += sumdata; |
1479 | } | |
1480 | while ((xsum >> 16) != 0) { | |
b2f50807 | 1481 | xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); |
8534bf9a SR |
1482 | } |
1483 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { | |
9b55a253 WD |
1484 | printf(" UDP wrong checksum %08lx %08x\n", |
1485 | xsum, ntohs(ip->udp_xsum)); | |
8534bf9a SR |
1486 | return; |
1487 | } | |
1488 | } | |
1489 | #endif | |
1490 | ||
53a5c424 | 1491 | |
68ceb29e WD |
1492 | #ifdef CONFIG_NETCONSOLE |
1493 | nc_input_packet((uchar *)ip +IP_HDR_SIZE, | |
1494 | ntohs(ip->udp_dst), | |
1495 | ntohs(ip->udp_src), | |
1496 | ntohs(ip->udp_len) - 8); | |
1497 | #endif | |
2d966958 WD |
1498 | /* |
1499 | * IP header OK. Pass the packet to the current handler. | |
1500 | */ | |
1501 | (*packetHandler)((uchar *)ip +IP_HDR_SIZE, | |
1502 | ntohs(ip->udp_dst), | |
1503 | ntohs(ip->udp_src), | |
1504 | ntohs(ip->udp_len) - 8); | |
2d966958 WD |
1505 | break; |
1506 | } | |
1507 | } | |
1508 | ||
1509 | ||
1510 | /**********************************************************************/ | |
1511 | ||
1512 | static int net_check_prereq (proto_t protocol) | |
1513 | { | |
1514 | switch (protocol) { | |
6e592385 | 1515 | /* Fall through */ |
643d1ab2 | 1516 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 1517 | case PING: |
6e592385 WD |
1518 | if (NetPingIP == 0) { |
1519 | puts ("*** ERROR: ping address not given\n"); | |
1520 | return (1); | |
1521 | } | |
1522 | goto common; | |
cbd8a35c | 1523 | #endif |
643d1ab2 | 1524 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
1525 | case SNTP: |
1526 | if (NetNtpServerIP == 0) { | |
1527 | puts ("*** ERROR: NTP server address not given\n"); | |
1528 | return (1); | |
1529 | } | |
1530 | goto common; | |
1531 | #endif | |
1a32bf41 RG |
1532 | #if defined(CONFIG_CMD_DNS) |
1533 | case DNS: | |
1534 | if (NetOurDNSIP == 0) { | |
1535 | puts("*** ERROR: DNS server address not given\n"); | |
1536 | return 1; | |
1537 | } | |
1538 | goto common; | |
1539 | #endif | |
643d1ab2 | 1540 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c | 1541 | case NFS: |
73a8b27c | 1542 | #endif |
68ceb29e | 1543 | case NETCONS: |
2d966958 | 1544 | case TFTP: |
6e592385 WD |
1545 | if (NetServerIP == 0) { |
1546 | puts ("*** ERROR: `serverip' not set\n"); | |
1547 | return (1); | |
1548 | } | |
643d1ab2 | 1549 | #if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) |
b2f50807 | 1550 | common: |
73a8b27c WD |
1551 | #endif |
1552 | ||
6e592385 WD |
1553 | if (NetOurIP == 0) { |
1554 | puts ("*** ERROR: `ipaddr' not set\n"); | |
1555 | return (1); | |
1556 | } | |
1557 | /* Fall through */ | |
2d966958 WD |
1558 | |
1559 | case DHCP: | |
1560 | case RARP: | |
1561 | case BOOTP: | |
a3d991bd | 1562 | case CDP: |
6e592385 | 1563 | if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { |
2d966958 | 1564 | #ifdef CONFIG_NET_MULTI |
6e592385 WD |
1565 | extern int eth_get_dev_index (void); |
1566 | int num = eth_get_dev_index (); | |
2d966958 | 1567 | |
6e592385 WD |
1568 | switch (num) { |
1569 | case -1: | |
2d966958 WD |
1570 | puts ("*** ERROR: No ethernet found.\n"); |
1571 | return (1); | |
6e592385 | 1572 | case 0: |
2d966958 WD |
1573 | puts ("*** ERROR: `ethaddr' not set\n"); |
1574 | break; | |
6e592385 | 1575 | default: |
8bde7f77 | 1576 | printf ("*** ERROR: `eth%daddr' not set\n", |
2d966958 WD |
1577 | num); |
1578 | break; | |
6e592385 | 1579 | } |
2d966958 | 1580 | |
6e592385 WD |
1581 | NetStartAgain (); |
1582 | return (2); | |
2d966958 | 1583 | #else |
6e592385 WD |
1584 | puts ("*** ERROR: `ethaddr' not set\n"); |
1585 | return (1); | |
2d966958 | 1586 | #endif |
6e592385 WD |
1587 | } |
1588 | /* Fall through */ | |
1589 | default: | |
1590 | return (0); | |
2d966958 | 1591 | } |
6e592385 | 1592 | return (0); /* OK */ |
2d966958 WD |
1593 | } |
1594 | /**********************************************************************/ | |
1595 | ||
1596 | int | |
1597 | NetCksumOk(uchar * ptr, int len) | |
1598 | { | |
1599 | return !((NetCksum(ptr, len) + 1) & 0xfffe); | |
1600 | } | |
1601 | ||
1602 | ||
1603 | unsigned | |
1604 | NetCksum(uchar * ptr, int len) | |
1605 | { | |
1606 | ulong xsum; | |
9d2a873b | 1607 | ushort *p = (ushort *)ptr; |
2d966958 WD |
1608 | |
1609 | xsum = 0; | |
1610 | while (len-- > 0) | |
7bc5ee07 | 1611 | xsum += *p++; |
2d966958 WD |
1612 | xsum = (xsum & 0xffff) + (xsum >> 16); |
1613 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1614 | return (xsum & 0xffff); | |
1615 | } | |
1616 | ||
a3d991bd WD |
1617 | int |
1618 | NetEthHdrSize(void) | |
1619 | { | |
1620 | ushort myvlanid; | |
2d966958 | 1621 | |
a3d991bd WD |
1622 | myvlanid = ntohs(NetOurVLAN); |
1623 | if (myvlanid == (ushort)-1) | |
1624 | myvlanid = VLAN_NONE; | |
1625 | ||
1626 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; | |
1627 | } | |
1628 | ||
1629 | int | |
2d966958 WD |
1630 | NetSetEther(volatile uchar * xet, uchar * addr, uint prot) |
1631 | { | |
1632 | Ethernet_t *et = (Ethernet_t *)xet; | |
a3d991bd WD |
1633 | ushort myvlanid; |
1634 | ||
1635 | myvlanid = ntohs(NetOurVLAN); | |
1636 | if (myvlanid == (ushort)-1) | |
1637 | myvlanid = VLAN_NONE; | |
2d966958 WD |
1638 | |
1639 | memcpy (et->et_dest, addr, 6); | |
1640 | memcpy (et->et_src, NetOurEther, 6); | |
a3d991bd | 1641 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
2d966958 | 1642 | et->et_protlen = htons(prot); |
a3d991bd WD |
1643 | return ETHER_HDR_SIZE; |
1644 | } else { | |
1645 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; | |
2d966958 | 1646 | |
a3d991bd WD |
1647 | vet->vet_vlan_type = htons(PROT_VLAN); |
1648 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); | |
1649 | vet->vet_type = htons(prot); | |
1650 | return VLAN_ETHER_HDR_SIZE; | |
1651 | } | |
1652 | } | |
2d966958 WD |
1653 | |
1654 | void | |
1655 | NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) | |
1656 | { | |
af8626e0 | 1657 | IP_t *ip = (IP_t *)xip; |
2d966958 WD |
1658 | |
1659 | /* | |
1660 | * If the data is an odd number of bytes, zero the | |
1661 | * byte after the last byte so that the checksum | |
1662 | * will work. | |
1663 | */ | |
1664 | if (len & 1) | |
1665 | xip[IP_HDR_SIZE + len] = 0; | |
1666 | ||
1667 | /* | |
1668 | * Construct an IP and UDP header. | |
6e592385 | 1669 | * (need to set no fragment bit - XXX) |
2d966958 WD |
1670 | */ |
1671 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
1672 | ip->ip_tos = 0; | |
1673 | ip->ip_len = htons(IP_HDR_SIZE + len); | |
1674 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 1675 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
2d966958 WD |
1676 | ip->ip_ttl = 255; |
1677 | ip->ip_p = 17; /* UDP */ | |
1678 | ip->ip_sum = 0; | |
1679 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
1680 | NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ | |
1681 | ip->udp_src = htons(sport); | |
1682 | ip->udp_dst = htons(dport); | |
1683 | ip->udp_len = htons(8 + len); | |
1684 | ip->udp_xsum = 0; | |
1685 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
1686 | } | |
1687 | ||
77ddac94 | 1688 | void copy_filename (char *dst, char *src, int size) |
2d966958 WD |
1689 | { |
1690 | if (*src && (*src == '"')) { | |
1691 | ++src; | |
1692 | --size; | |
1693 | } | |
1694 | ||
1695 | while ((--size > 0) && *src && (*src != '"')) { | |
1696 | *dst++ = *src++; | |
1697 | } | |
1698 | *dst = '\0'; | |
1699 | } | |
1700 | ||
610f2e9c | 1701 | #endif |
2d966958 | 1702 | |
1a32bf41 RG |
1703 | #if defined(CONFIG_CMD_NFS) || defined(CONFIG_CMD_SNTP) || defined(CONFIG_CMD_DNS) |
1704 | /* | |
1705 | * make port a little random, but use something trivial to compute | |
1706 | */ | |
1707 | unsigned int random_port(void) | |
1708 | { | |
1709 | return 1024 + (get_timer(0) % 0x8000);; | |
1710 | } | |
1711 | #endif | |
1712 | ||
2d966958 WD |
1713 | void ip_to_string (IPaddr_t x, char *s) |
1714 | { | |
a3d991bd WD |
1715 | x = ntohl (x); |
1716 | sprintf (s, "%d.%d.%d.%d", | |
1717 | (int) ((x >> 24) & 0xff), | |
1718 | (int) ((x >> 16) & 0xff), | |
1719 | (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) | |
6e592385 | 1720 | ); |
2d966958 WD |
1721 | } |
1722 | ||
73a8b27c | 1723 | IPaddr_t string_to_ip(char *s) |
2d966958 WD |
1724 | { |
1725 | IPaddr_t addr; | |
73a8b27c | 1726 | char *e; |
2d966958 WD |
1727 | int i; |
1728 | ||
73a8b27c WD |
1729 | if (s == NULL) |
1730 | return(0); | |
2d966958 WD |
1731 | |
1732 | for (addr=0, i=0; i<4; ++i) { | |
1733 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
1734 | addr <<= 8; | |
1735 | addr |= (val & 0xFF); | |
1736 | if (s) { | |
1737 | s = (*e) ? e+1 : e; | |
1738 | } | |
1739 | } | |
1740 | ||
1741 | return (htonl(addr)); | |
1742 | } | |
73a8b27c | 1743 | |
a3d991bd WD |
1744 | void VLAN_to_string(ushort x, char *s) |
1745 | { | |
1746 | x = ntohs(x); | |
1747 | ||
1748 | if (x == (ushort)-1) | |
1749 | x = VLAN_NONE; | |
1750 | ||
1751 | if (x == VLAN_NONE) | |
1752 | strcpy(s, "none"); | |
1753 | else | |
1754 | sprintf(s, "%d", x & VLAN_IDMASK); | |
1755 | } | |
1756 | ||
1757 | ushort string_to_VLAN(char *s) | |
1758 | { | |
1759 | ushort id; | |
1760 | ||
1761 | if (s == NULL) | |
b9711de1 | 1762 | return htons(VLAN_NONE); |
a3d991bd WD |
1763 | |
1764 | if (*s < '0' || *s > '9') | |
1765 | id = VLAN_NONE; | |
1766 | else | |
1767 | id = (ushort)simple_strtoul(s, NULL, 10); | |
1768 | ||
b9711de1 | 1769 | return htons(id); |
a3d991bd WD |
1770 | } |
1771 | ||
73a8b27c WD |
1772 | IPaddr_t getenv_IPaddr (char *var) |
1773 | { | |
1774 | return (string_to_ip(getenv(var))); | |
1775 | } | |
a3d991bd WD |
1776 | |
1777 | ushort getenv_VLAN(char *var) | |
1778 | { | |
1779 | return (string_to_VLAN(getenv(var))); | |
1780 | } |