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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 | |
2d966958 | 92 | |
643d1ab2 | 93 | #if defined(CONFIG_CMD_NET) |
2d966958 | 94 | |
d87080b7 WD |
95 | DECLARE_GLOBAL_DATA_PTR; |
96 | ||
40cb90ee | 97 | #ifndef CONFIG_ARP_TIMEOUT |
49f3bdbb | 98 | # define ARP_TIMEOUT 5000UL /* Milliseconds before trying ARP again */ |
40cb90ee | 99 | #else |
49f3bdbb | 100 | # define ARP_TIMEOUT CONFIG_ARP_TIMEOUT |
40cb90ee GL |
101 | #endif |
102 | ||
103 | ||
73a8b27c | 104 | #ifndef CONFIG_NET_RETRY_COUNT |
40cb90ee | 105 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
73a8b27c | 106 | #else |
40cb90ee | 107 | # define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT |
73a8b27c WD |
108 | #endif |
109 | ||
2d966958 WD |
110 | #if 0 |
111 | #define ET_DEBUG | |
112 | #endif | |
113 | ||
114 | /** BOOTP EXTENTIONS **/ | |
115 | ||
116 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
117 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
118 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
1fe80d79 | 119 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 SR |
120 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ |
121 | #endif | |
2d966958 WD |
122 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
123 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
124 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
125 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
126 | ||
53a5c424 DU |
127 | #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ |
128 | IPaddr_t Mcast_addr; | |
129 | #endif | |
130 | ||
2d966958 WD |
131 | /** END OF BOOTP EXTENTIONS **/ |
132 | ||
133 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
134 | uchar NetOurEther[6]; /* Our ethernet address */ | |
135 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 136 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 | 137 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
40cb90ee | 138 | IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
2d966958 WD |
139 | volatile uchar *NetRxPkt; /* Current receive packet */ |
140 | int NetRxPktLen; /* Current rx packet length */ | |
141 | unsigned NetIPID; /* IP packet ID */ | |
142 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
143 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
144 | uchar NetEtherNullAddr[6] = |
145 | { 0, 0, 0, 0, 0, 0 }; | |
f85b6071 RJ |
146 | #ifdef CONFIG_API |
147 | void (*push_packet)(volatile void *, int len) = 0; | |
148 | #endif | |
643d1ab2 | 149 | #if defined(CONFIG_CMD_CDP) |
6e592385 | 150 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
151 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
152 | #endif | |
2d966958 WD |
153 | int NetState; /* Network loop state */ |
154 | #ifdef CONFIG_NET_MULTI | |
155 | int NetRestartWrap = 0; /* Tried all network devices */ | |
156 | static int NetRestarted = 0; /* Network loop restarted */ | |
157 | static int NetDevExists = 0; /* At least one device configured */ | |
158 | #endif | |
159 | ||
6e592385 WD |
160 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
161 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
162 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 163 | |
2d966958 WD |
164 | char BootFile[128]; /* Boot File name */ |
165 | ||
643d1ab2 | 166 | #if defined(CONFIG_CMD_PING) |
53677ef1 | 167 | IPaddr_t NetPingIP; /* the ip address to ping */ |
73a8b27c WD |
168 | |
169 | static void PingStart(void); | |
170 | #endif | |
171 | ||
643d1ab2 | 172 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
173 | static void CDPStart(void); |
174 | #endif | |
175 | ||
643d1ab2 | 176 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
177 | IPaddr_t NetNtpServerIP; /* NTP server IP address */ |
178 | int NetTimeOffset=0; /* offset time from UTC */ | |
179 | #endif | |
180 | ||
68ceb29e WD |
181 | #ifdef CONFIG_NETCONSOLE |
182 | void NcStart(void); | |
183 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
184 | #endif | |
185 | ||
2d966958 WD |
186 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
187 | ||
188 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
189 | ||
190 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
191 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
192 | static ulong timeStart; /* Time base value */ |
193 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
194 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
195 | ||
196 | static int net_check_prereq (proto_t protocol); | |
197 | ||
73a8b27c WD |
198 | /**********************************************************************/ |
199 | ||
200 | IPaddr_t NetArpWaitPacketIP; | |
201 | IPaddr_t NetArpWaitReplyIP; | |
202 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
b2f50807 | 203 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ |
73a8b27c | 204 | int NetArpWaitTxPacketSize; |
53677ef1 | 205 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; |
73a8b27c WD |
206 | ulong NetArpWaitTimerStart; |
207 | int NetArpWaitTry; | |
208 | ||
6e592385 | 209 | void ArpRequest (void) |
73a8b27c WD |
210 | { |
211 | int i; | |
212 | volatile uchar *pkt; | |
6e592385 | 213 | ARP_t *arp; |
73a8b27c WD |
214 | |
215 | #ifdef ET_DEBUG | |
6e592385 | 216 | printf ("ARP broadcast %d\n", NetArpWaitTry); |
73a8b27c WD |
217 | #endif |
218 | pkt = NetTxPacket; | |
219 | ||
6e592385 | 220 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 221 | |
6e592385 | 222 | arp = (ARP_t *) pkt; |
73a8b27c | 223 | |
6e592385 WD |
224 | arp->ar_hrd = htons (ARP_ETHER); |
225 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
226 | arp->ar_hln = 6; |
227 | arp->ar_pln = 4; | |
6e592385 | 228 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 229 | |
b2f50807 WD |
230 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
231 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
6e592385 WD |
232 | for (i = 10; i < 16; ++i) { |
233 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
234 | } |
235 | ||
6e592385 WD |
236 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
237 | (NetOurIP & NetOurSubnetMask)) { | |
238 | if (NetOurGatewayIP == 0) { | |
239 | puts ("## Warning: gatewayip needed but not set\n"); | |
d509b812 WD |
240 | NetArpWaitReplyIP = NetArpWaitPacketIP; |
241 | } else { | |
242 | NetArpWaitReplyIP = NetOurGatewayIP; | |
6e592385 | 243 | } |
6e592385 WD |
244 | } else { |
245 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
246 | } | |
73a8b27c | 247 | |
6e592385 WD |
248 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
249 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
250 | } |
251 | ||
252 | void ArpTimeoutCheck(void) | |
253 | { | |
254 | ulong t; | |
255 | ||
256 | if (!NetArpWaitPacketIP) | |
257 | return; | |
258 | ||
259 | t = get_timer(0); | |
260 | ||
261 | /* check for arp timeout */ | |
49f3bdbb | 262 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { |
73a8b27c WD |
263 | NetArpWaitTry++; |
264 | ||
265 | if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { | |
266 | puts ("\nARP Retry count exceeded; starting again\n"); | |
267 | NetArpWaitTry = 0; | |
268 | NetStartAgain(); | |
269 | } else { | |
270 | NetArpWaitTimerStart = t; | |
271 | ArpRequest(); | |
272 | } | |
273 | } | |
274 | } | |
275 | ||
2d966958 WD |
276 | /**********************************************************************/ |
277 | /* | |
278 | * Main network processing loop. | |
279 | */ | |
280 | ||
281 | int | |
282 | NetLoop(proto_t protocol) | |
283 | { | |
2d966958 WD |
284 | bd_t *bd = gd->bd; |
285 | ||
286 | #ifdef CONFIG_NET_MULTI | |
287 | NetRestarted = 0; | |
288 | NetDevExists = 0; | |
289 | #endif | |
290 | ||
73a8b27c WD |
291 | /* XXX problem with bss workaround */ |
292 | NetArpWaitPacketMAC = NULL; | |
293 | NetArpWaitTxPacket = NULL; | |
294 | NetArpWaitPacketIP = 0; | |
295 | NetArpWaitReplyIP = 0; | |
296 | NetArpWaitTxPacket = NULL; | |
297 | NetTxPacket = NULL; | |
298 | ||
2d966958 WD |
299 | if (!NetTxPacket) { |
300 | int i; | |
2d966958 WD |
301 | /* |
302 | * Setup packet buffers, aligned correctly. | |
303 | */ | |
304 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
305 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
306 | for (i = 0; i < PKTBUFSRX; i++) { | |
307 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
308 | } | |
73a8b27c WD |
309 | } |
310 | ||
311 | if (!NetArpWaitTxPacket) { | |
312 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
313 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
314 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
315 | } |
316 | ||
317 | eth_halt(); | |
6e592385 | 318 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 319 | eth_set_current(); |
6e592385 | 320 | #endif |
b1bf6f2c WD |
321 | if (eth_init(bd) < 0) { |
322 | eth_halt(); | |
6e592385 | 323 | return(-1); |
b1bf6f2c | 324 | } |
2d966958 WD |
325 | |
326 | restart: | |
327 | #ifdef CONFIG_NET_MULTI | |
328 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
329 | #else | |
330 | memcpy (NetOurEther, bd->bi_enetaddr, 6); | |
331 | #endif | |
332 | ||
333 | NetState = NETLOOP_CONTINUE; | |
334 | ||
335 | /* | |
336 | * Start the ball rolling with the given start function. From | |
337 | * here on, this code is a state machine driven by received | |
338 | * packets and timer events. | |
339 | */ | |
340 | ||
341 | switch (protocol) { | |
643d1ab2 | 342 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
343 | case NFS: |
344 | #endif | |
643d1ab2 | 345 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 346 | case PING: |
ea287deb | 347 | #endif |
643d1ab2 | 348 | #if defined(CONFIG_CMD_SNTP) |
ea287deb | 349 | case SNTP: |
73a8b27c | 350 | #endif |
68ceb29e | 351 | case NETCONS: |
2d966958 WD |
352 | case TFTP: |
353 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); | |
2d966958 WD |
354 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); |
355 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
a3d991bd WD |
356 | NetOurVLAN = getenv_VLAN("vlan"); |
357 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
73a8b27c WD |
358 | |
359 | switch (protocol) { | |
643d1ab2 | 360 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
361 | case NFS: |
362 | #endif | |
68ceb29e | 363 | case NETCONS: |
73a8b27c WD |
364 | case TFTP: |
365 | NetServerIP = getenv_IPaddr ("serverip"); | |
366 | break; | |
643d1ab2 | 367 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
368 | case PING: |
369 | /* nothing */ | |
370 | break; | |
ea287deb | 371 | #endif |
643d1ab2 | 372 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
373 | case SNTP: |
374 | /* nothing */ | |
375 | break; | |
73a8b27c WD |
376 | #endif |
377 | default: | |
378 | break; | |
379 | } | |
380 | ||
2d966958 WD |
381 | break; |
382 | case BOOTP: | |
383 | case RARP: | |
384 | /* | |
8bde7f77 WD |
385 | * initialize our IP addr to 0 in order to accept ANY |
386 | * IP addr assigned to us by the BOOTP / RARP server | |
2d966958 WD |
387 | */ |
388 | NetOurIP = 0; | |
3d3befa7 | 389 | NetServerIP = getenv_IPaddr ("serverip"); |
b2f50807 WD |
390 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ |
391 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
392 | case CDP: | |
393 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ | |
394 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
2d966958 WD |
395 | break; |
396 | default: | |
397 | break; | |
398 | } | |
399 | ||
400 | switch (net_check_prereq (protocol)) { | |
401 | case 1: | |
402 | /* network not configured */ | |
b1bf6f2c | 403 | eth_halt(); |
1d0350ed | 404 | return (-1); |
2d966958 WD |
405 | |
406 | #ifdef CONFIG_NET_MULTI | |
407 | case 2: | |
408 | /* network device not configured */ | |
409 | break; | |
410 | #endif /* CONFIG_NET_MULTI */ | |
411 | ||
412 | case 0: | |
413 | #ifdef CONFIG_NET_MULTI | |
414 | NetDevExists = 1; | |
415 | #endif | |
416 | switch (protocol) { | |
417 | case TFTP: | |
418 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 419 | TftpStart(); |
2d966958 WD |
420 | break; |
421 | ||
643d1ab2 | 422 | #if defined(CONFIG_CMD_DHCP) |
2d966958 WD |
423 | case DHCP: |
424 | /* Start with a clean slate... */ | |
d407bf52 | 425 | BootpTry = 0; |
2d966958 | 426 | NetOurIP = 0; |
3d3befa7 | 427 | NetServerIP = getenv_IPaddr ("serverip"); |
2d966958 WD |
428 | DhcpRequest(); /* Basically same as BOOTP */ |
429 | break; | |
610f2e9c | 430 | #endif |
2d966958 WD |
431 | |
432 | case BOOTP: | |
433 | BootpTry = 0; | |
434 | BootpRequest (); | |
435 | break; | |
436 | ||
437 | case RARP: | |
438 | RarpTry = 0; | |
439 | RarpRequest (); | |
440 | break; | |
643d1ab2 | 441 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
442 | case PING: |
443 | PingStart(); | |
444 | break; | |
cbd8a35c | 445 | #endif |
643d1ab2 | 446 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
447 | case NFS: |
448 | NfsStart(); | |
449 | break; | |
a3d991bd | 450 | #endif |
643d1ab2 | 451 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
452 | case CDP: |
453 | CDPStart(); | |
454 | break; | |
68ceb29e WD |
455 | #endif |
456 | #ifdef CONFIG_NETCONSOLE | |
457 | case NETCONS: | |
458 | NcStart(); | |
459 | break; | |
ea287deb | 460 | #endif |
643d1ab2 | 461 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
462 | case SNTP: |
463 | SntpStart(); | |
464 | break; | |
73a8b27c | 465 | #endif |
2d966958 WD |
466 | default: |
467 | break; | |
468 | } | |
469 | ||
470 | NetBootFileXferSize = 0; | |
471 | break; | |
472 | } | |
473 | ||
643d1ab2 | 474 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 475 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) |
fc3e2165 | 476 | /* |
42d1f039 | 477 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 478 | */ |
6d0f6bcf | 479 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
480 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
481 | } else { | |
482 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
483 | } | |
6d0f6bcf | 484 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 485 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
486 | |
487 | /* | |
488 | * Main packet reception loop. Loop receiving packets until | |
59acc296 | 489 | * someone sets `NetState' to a state that terminates. |
2d966958 WD |
490 | */ |
491 | for (;;) { | |
492 | WATCHDOG_RESET(); | |
493 | #ifdef CONFIG_SHOW_ACTIVITY | |
494 | { | |
495 | extern void show_activity(int arg); | |
496 | show_activity(1); | |
497 | } | |
498 | #endif | |
499 | /* | |
500 | * Check the ethernet for a new packet. The ethernet | |
501 | * receive routine will process it. | |
502 | */ | |
40cb90ee | 503 | eth_rx(); |
2d966958 WD |
504 | |
505 | /* | |
506 | * Abort if ctrl-c was pressed. | |
507 | */ | |
508 | if (ctrlc()) { | |
8bde7f77 | 509 | eth_halt(); |
4b9206ed | 510 | puts ("\nAbort\n"); |
1d0350ed | 511 | return (-1); |
2d966958 WD |
512 | } |
513 | ||
73a8b27c | 514 | ArpTimeoutCheck(); |
2d966958 WD |
515 | |
516 | /* | |
517 | * Check for a timeout, and run the timeout handler | |
518 | * if we have one. | |
519 | */ | |
e0ac62d7 | 520 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
521 | thand_f *x; |
522 | ||
643d1ab2 | 523 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 524 | # if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
63153492 | 525 | defined(CONFIG_STATUS_LED) && \ |
59acc296 | 526 | defined(STATUS_LED_RED) |
fc3e2165 | 527 | /* |
42d1f039 | 528 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 529 | */ |
6d0f6bcf | 530 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
531 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
532 | } else { | |
533 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
534 | } | |
6d0f6bcf | 535 | # endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 536 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
537 | x = timeHandler; |
538 | timeHandler = (thand_f *)0; | |
539 | (*x)(); | |
540 | } | |
541 | ||
542 | ||
543 | switch (NetState) { | |
544 | ||
545 | case NETLOOP_RESTART: | |
546 | #ifdef CONFIG_NET_MULTI | |
547 | NetRestarted = 1; | |
548 | #endif | |
549 | goto restart; | |
550 | ||
551 | case NETLOOP_SUCCESS: | |
552 | if (NetBootFileXferSize > 0) { | |
f34024d4 | 553 | char buf[20]; |
2d966958 WD |
554 | printf("Bytes transferred = %ld (%lx hex)\n", |
555 | NetBootFileXferSize, | |
556 | NetBootFileXferSize); | |
f34024d4 | 557 | sprintf(buf, "%lX", NetBootFileXferSize); |
2d966958 | 558 | setenv("filesize", buf); |
a3d991bd WD |
559 | |
560 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
561 | setenv("fileaddr", buf); | |
2d966958 WD |
562 | } |
563 | eth_halt(); | |
564 | return NetBootFileXferSize; | |
565 | ||
566 | case NETLOOP_FAIL: | |
1d0350ed | 567 | return (-1); |
2d966958 WD |
568 | } |
569 | } | |
570 | } | |
571 | ||
572 | /**********************************************************************/ | |
573 | ||
574 | static void | |
575 | startAgainTimeout(void) | |
576 | { | |
577 | NetState = NETLOOP_RESTART; | |
578 | } | |
579 | ||
580 | static void | |
581 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
582 | { | |
583 | /* Totally ignore the packet */ | |
584 | } | |
585 | ||
6e592385 | 586 | void NetStartAgain (void) |
2d966958 | 587 | { |
6e592385 WD |
588 | char *nretry; |
589 | int noretry = 0, once = 0; | |
a3d991bd | 590 | |
6e592385 WD |
591 | if ((nretry = getenv ("netretry")) != NULL) { |
592 | noretry = (strcmp (nretry, "no") == 0); | |
593 | once = (strcmp (nretry, "once") == 0); | |
594 | } | |
595 | if (noretry) { | |
596 | eth_halt (); | |
a3d991bd WD |
597 | NetState = NETLOOP_FAIL; |
598 | return; | |
599 | } | |
2d966958 | 600 | #ifndef CONFIG_NET_MULTI |
49f3bdbb | 601 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
602 | NetSetHandler (startAgainHandler); |
603 | #else /* !CONFIG_NET_MULTI*/ | |
604 | eth_halt (); | |
8b0c5c12 | 605 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
6e592385 | 606 | eth_try_another (!NetRestarted); |
8b0c5c12 | 607 | #endif |
6e592385 WD |
608 | eth_init (gd->bd); |
609 | if (NetRestartWrap) { | |
2d966958 | 610 | NetRestartWrap = 0; |
6e592385 | 611 | if (NetDevExists && !once) { |
49f3bdbb | 612 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
613 | NetSetHandler (startAgainHandler); |
614 | } else { | |
2d966958 WD |
615 | NetState = NETLOOP_FAIL; |
616 | } | |
6e592385 | 617 | } else { |
2d966958 WD |
618 | NetState = NETLOOP_RESTART; |
619 | } | |
6e592385 | 620 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
621 | } |
622 | ||
623 | /**********************************************************************/ | |
624 | /* | |
625 | * Miscelaneous bits. | |
626 | */ | |
627 | ||
628 | void | |
629 | NetSetHandler(rxhand_f * f) | |
630 | { | |
631 | packetHandler = f; | |
632 | } | |
633 | ||
634 | ||
635 | void | |
3e01d75f | 636 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
637 | { |
638 | if (iv == 0) { | |
639 | timeHandler = (thand_f *)0; | |
640 | } else { | |
641 | timeHandler = f; | |
e0ac62d7 WD |
642 | timeStart = get_timer(0); |
643 | timeDelta = iv; | |
2d966958 WD |
644 | } |
645 | } | |
646 | ||
647 | ||
648 | void | |
649 | NetSendPacket(volatile uchar * pkt, int len) | |
650 | { | |
651 | (void) eth_send(pkt, len); | |
652 | } | |
653 | ||
73a8b27c WD |
654 | int |
655 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
656 | { | |
a3d991bd WD |
657 | uchar *pkt; |
658 | ||
73a8b27c WD |
659 | /* convert to new style broadcast */ |
660 | if (dest == 0) | |
661 | dest = 0xFFFFFFFF; | |
662 | ||
663 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
664 | if (dest == 0xFFFFFFFF) | |
665 | ether = NetBcastAddr; | |
666 | ||
667 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
668 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
669 | ||
670 | #ifdef ET_DEBUG | |
671 | printf("sending ARP for %08lx\n", dest); | |
672 | #endif | |
73a8b27c WD |
673 | NetArpWaitPacketIP = dest; |
674 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
675 | |
676 | pkt = NetArpWaitTxPacket; | |
677 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
678 | ||
679 | NetSetIP (pkt, dest, dport, sport, len); | |
680 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
681 | |
682 | /* size of the waiting packet */ | |
a3d991bd | 683 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
684 | |
685 | /* and do the ARP request */ | |
686 | NetArpWaitTry = 1; | |
687 | NetArpWaitTimerStart = get_timer(0); | |
688 | ArpRequest(); | |
689 | return 1; /* waiting */ | |
690 | } | |
691 | ||
692 | #ifdef ET_DEBUG | |
693 | printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n", | |
6e592385 | 694 | dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]); |
73a8b27c WD |
695 | #endif |
696 | ||
a3d991bd WD |
697 | pkt = (uchar *)NetTxPacket; |
698 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
699 | NetSetIP (pkt, dest, dport, sport, len); | |
700 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 701 | |
6e592385 | 702 | return 0; /* transmitted */ |
73a8b27c WD |
703 | } |
704 | ||
643d1ab2 | 705 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
706 | static ushort PingSeqNo; |
707 | ||
708 | int PingSend(void) | |
709 | { | |
710 | static uchar mac[6]; | |
711 | volatile IP_t *ip; | |
712 | volatile ushort *s; | |
a3d991bd | 713 | uchar *pkt; |
73a8b27c WD |
714 | |
715 | /* XXX always send arp request */ | |
716 | ||
717 | memcpy(mac, NetEtherNullAddr, 6); | |
718 | ||
719 | #ifdef ET_DEBUG | |
720 | printf("sending ARP for %08lx\n", NetPingIP); | |
721 | #endif | |
722 | ||
723 | NetArpWaitPacketIP = NetPingIP; | |
724 | NetArpWaitPacketMAC = mac; | |
725 | ||
a3d991bd WD |
726 | pkt = NetArpWaitTxPacket; |
727 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 728 | |
a3d991bd | 729 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
730 | |
731 | /* | |
732 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
733 | */ | |
734 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
735 | ip->ip_tos = 0; | |
736 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
737 | ip->ip_id = htons(NetIPID++); | |
738 | ip->ip_off = htons(0x4000); /* No fragmentation */ | |
739 | ip->ip_ttl = 255; | |
740 | ip->ip_p = 0x01; /* ICMP */ | |
741 | ip->ip_sum = 0; | |
742 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
743 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
744 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
745 | ||
746 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
747 | s[0] = htons(0x0800); /* echo-request, code */ | |
748 | s[1] = 0; /* checksum */ | |
53677ef1 | 749 | s[2] = 0; /* identifier */ |
73a8b27c WD |
750 | s[3] = htons(PingSeqNo++); /* sequence number */ |
751 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
752 | ||
753 | /* size of the waiting packet */ | |
a3d991bd | 754 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
755 | |
756 | /* and do the ARP request */ | |
757 | NetArpWaitTry = 1; | |
758 | NetArpWaitTimerStart = get_timer(0); | |
759 | ArpRequest(); | |
760 | return 1; /* waiting */ | |
761 | } | |
762 | ||
763 | static void | |
764 | PingTimeout (void) | |
765 | { | |
766 | eth_halt(); | |
767 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
768 | } | |
2d966958 | 769 | |
73a8b27c WD |
770 | static void |
771 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
772 | { | |
773 | IPaddr_t tmp; | |
774 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
775 | ||
776 | tmp = NetReadIP((void *)&ip->ip_src); | |
777 | if (tmp != NetPingIP) | |
778 | return; | |
779 | ||
780 | NetState = NETLOOP_SUCCESS; | |
781 | } | |
782 | ||
783 | static void PingStart(void) | |
784 | { | |
a3d991bd WD |
785 | #if defined(CONFIG_NET_MULTI) |
786 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 787 | #endif /* CONFIG_NET_MULTI */ |
49f3bdbb | 788 | NetSetTimeout (10000UL, PingTimeout); |
73a8b27c WD |
789 | NetSetHandler (PingHandler); |
790 | ||
791 | PingSend(); | |
792 | } | |
610f2e9c | 793 | #endif |
2d966958 | 794 | |
643d1ab2 | 795 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
796 | |
797 | #define CDP_DEVICE_ID_TLV 0x0001 | |
798 | #define CDP_ADDRESS_TLV 0x0002 | |
799 | #define CDP_PORT_ID_TLV 0x0003 | |
800 | #define CDP_CAPABILITIES_TLV 0x0004 | |
801 | #define CDP_VERSION_TLV 0x0005 | |
802 | #define CDP_PLATFORM_TLV 0x0006 | |
803 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
804 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
805 | #define CDP_TRIGGER_TLV 0x000f | |
806 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
807 | #define CDP_SYSNAME_TLV 0x0014 | |
808 | #define CDP_SYSOBJECT_TLV 0x0015 | |
809 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
810 | ||
49f3bdbb | 811 | #define CDP_TIMEOUT 250UL /* one packet every 250ms */ |
a3d991bd WD |
812 | |
813 | static int CDPSeq; | |
814 | static int CDPOK; | |
815 | ||
816 | ushort CDPNativeVLAN; | |
817 | ushort CDPApplianceVLAN; | |
818 | ||
819 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
820 | ||
821 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
822 | { | |
823 | ushort csum; | |
824 | int odd; | |
825 | ulong result = 0; | |
826 | ushort leftover; | |
77ddac94 | 827 | ushort *p; |
a3d991bd WD |
828 | |
829 | if (len > 0) { | |
830 | odd = 1 & (ulong)buff; | |
831 | if (odd) { | |
832 | result = *buff << 8; | |
833 | len--; | |
834 | buff++; | |
835 | } | |
836 | while (len > 1) { | |
77ddac94 WD |
837 | p = (ushort *)buff; |
838 | result += *p++; | |
839 | buff = (uchar *)p; | |
a3d991bd WD |
840 | if (result & 0x80000000) |
841 | result = (result & 0xFFFF) + (result >> 16); | |
842 | len -= 2; | |
843 | } | |
844 | if (len) { | |
845 | leftover = (signed short)(*(const signed char *)buff); | |
3ada834e WD |
846 | /* CISCO SUCKS big time! (and blows too): |
847 | * CDP uses the IP checksum algorithm with a twist; | |
848 | * for the last byte it *sign* extends and sums. | |
849 | */ | |
a3d991bd WD |
850 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); |
851 | } | |
852 | while (result >> 16) | |
853 | result = (result & 0xFFFF) + (result >> 16); | |
854 | ||
855 | if (odd) | |
856 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
857 | } | |
858 | ||
859 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
860 | result = (result & 0xffff) + (result >> 16); | |
861 | /* add up 16-bit and 2-bit for 16+c bit */ | |
862 | result = (result & 0xffff) + (result >> 16); | |
863 | /* add up carry.. */ | |
864 | result = (result & 0xffff) + (result >> 16); | |
865 | ||
866 | /* negate */ | |
867 | csum = ~(ushort)result; | |
868 | ||
869 | /* run time endian detection */ | |
870 | if (csum != htons(csum)) /* little endian */ | |
871 | csum = htons(csum); | |
872 | ||
873 | return csum; | |
874 | } | |
875 | ||
876 | int CDPSendTrigger(void) | |
877 | { | |
878 | volatile uchar *pkt; | |
879 | volatile ushort *s; | |
880 | volatile ushort *cp; | |
881 | Ethernet_t *et; | |
a3d991bd WD |
882 | int len; |
883 | ushort chksum; | |
6e592385 WD |
884 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
885 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
886 | char buf[32]; | |
887 | #endif | |
a3d991bd WD |
888 | |
889 | pkt = NetTxPacket; | |
890 | et = (Ethernet_t *)pkt; | |
891 | ||
892 | /* NOTE: trigger sent not on any VLAN */ | |
893 | ||
894 | /* form ethernet header */ | |
895 | memcpy(et->et_dest, NetCDPAddr, 6); | |
896 | memcpy(et->et_src, NetOurEther, 6); | |
897 | ||
898 | pkt += ETHER_HDR_SIZE; | |
899 | ||
900 | /* SNAP header */ | |
901 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
902 | pkt += sizeof(CDP_SNAP_hdr); | |
903 | ||
904 | /* CDP header */ | |
905 | *pkt++ = 0x02; /* CDP version 2 */ | |
906 | *pkt++ = 180; /* TTL */ | |
907 | s = (volatile ushort *)pkt; | |
908 | cp = s; | |
909 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
910 | ||
911 | /* CDP fields */ | |
912 | #ifdef CONFIG_CDP_DEVICE_ID | |
913 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
914 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
915 | memset(buf, 0, sizeof(buf)); | |
916 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X", | |
917 | NetOurEther[0] & 0xff, NetOurEther[1] & 0xff, | |
918 | NetOurEther[2] & 0xff, NetOurEther[3] & 0xff, | |
919 | NetOurEther[4] & 0xff, NetOurEther[5] & 0xff); | |
920 | memcpy((uchar *)s, buf, 16); | |
921 | s += 16 / 2; | |
922 | #endif | |
923 | ||
924 | #ifdef CONFIG_CDP_PORT_ID | |
925 | *s++ = htons(CDP_PORT_ID_TLV); | |
926 | memset(buf, 0, sizeof(buf)); | |
927 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
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_CAPABILITIES | |
937 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
938 | *s++ = htons(8); | |
939 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
940 | s += 2; | |
941 | #endif | |
942 | ||
943 | #ifdef CONFIG_CDP_VERSION | |
944 | *s++ = htons(CDP_VERSION_TLV); | |
945 | memset(buf, 0, sizeof(buf)); | |
946 | strcpy(buf, CONFIG_CDP_VERSION); | |
947 | len = strlen(buf); | |
948 | if (len & 1) /* make it even */ | |
949 | len++; | |
950 | *s++ = htons(len + 4); | |
951 | memcpy((uchar *)s, buf, len); | |
952 | s += len / 2; | |
953 | #endif | |
954 | ||
955 | #ifdef CONFIG_CDP_PLATFORM | |
956 | *s++ = htons(CDP_PLATFORM_TLV); | |
957 | memset(buf, 0, sizeof(buf)); | |
958 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
959 | len = strlen(buf); | |
960 | if (len & 1) /* make it even */ | |
961 | len++; | |
962 | *s++ = htons(len + 4); | |
963 | memcpy((uchar *)s, buf, len); | |
964 | s += len / 2; | |
965 | #endif | |
966 | ||
967 | #ifdef CONFIG_CDP_TRIGGER | |
968 | *s++ = htons(CDP_TRIGGER_TLV); | |
969 | *s++ = htons(8); | |
970 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
971 | s += 2; | |
972 | #endif | |
973 | ||
974 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
975 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
976 | *s++ = htons(6); | |
977 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
978 | #endif | |
979 | ||
980 | /* length of ethernet packet */ | |
981 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
982 | et->et_protlen = htons(len); | |
983 | ||
984 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
985 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
986 | if (chksum == 0) | |
987 | chksum = 0xFFFF; | |
988 | *cp = htons(chksum); | |
989 | ||
990 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
991 | return 0; | |
992 | } | |
993 | ||
994 | static void | |
995 | CDPTimeout (void) | |
996 | { | |
997 | CDPSeq++; | |
998 | ||
999 | if (CDPSeq < 3) { | |
1000 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1001 | CDPSendTrigger(); | |
1002 | return; | |
1003 | } | |
1004 | ||
1005 | /* if not OK try again */ | |
1006 | if (!CDPOK) | |
1007 | NetStartAgain(); | |
1008 | else | |
1009 | NetState = NETLOOP_SUCCESS; | |
1010 | } | |
1011 | ||
1012 | static void | |
1013 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
1014 | { | |
1015 | /* nothing */ | |
1016 | } | |
1017 | ||
1018 | static void | |
1019 | CDPHandler(const uchar * pkt, unsigned len) | |
1020 | { | |
1021 | const uchar *t; | |
1022 | const ushort *ss; | |
1023 | ushort type, tlen; | |
1024 | uchar applid; | |
1025 | ushort vlan, nvlan; | |
1026 | ||
1027 | /* minimum size? */ | |
1028 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
1029 | goto pkt_short; | |
1030 | ||
1031 | /* check for valid CDP SNAP header */ | |
1032 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
1033 | return; | |
1034 | ||
1035 | pkt += sizeof(CDP_SNAP_hdr); | |
1036 | len -= sizeof(CDP_SNAP_hdr); | |
1037 | ||
1038 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
1039 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
1040 | return; | |
1041 | ||
1042 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
1043 | if (pkt[0] != 0x02) | |
1044 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
1045 | pkt[0] & 0xff); | |
1046 | ||
1047 | if (CDP_compute_csum(pkt, len) != 0) | |
1048 | return; | |
1049 | ||
1050 | pkt += 4; | |
1051 | len -= 4; | |
1052 | ||
1053 | vlan = htons(-1); | |
1054 | nvlan = htons(-1); | |
1055 | while (len > 0) { | |
1056 | if (len < 4) | |
1057 | goto pkt_short; | |
1058 | ||
1059 | ss = (const ushort *)pkt; | |
1060 | type = ntohs(ss[0]); | |
1061 | tlen = ntohs(ss[1]); | |
1062 | if (tlen > len) { | |
1063 | goto pkt_short; | |
1064 | } | |
1065 | ||
1066 | pkt += tlen; | |
1067 | len -= tlen; | |
1068 | ||
1069 | ss += 2; /* point ss to the data of the TLV */ | |
1070 | tlen -= 4; | |
1071 | ||
1072 | switch (type) { | |
1073 | case CDP_DEVICE_ID_TLV: | |
1074 | break; | |
1075 | case CDP_ADDRESS_TLV: | |
1076 | break; | |
1077 | case CDP_PORT_ID_TLV: | |
1078 | break; | |
1079 | case CDP_CAPABILITIES_TLV: | |
1080 | break; | |
1081 | case CDP_VERSION_TLV: | |
1082 | break; | |
1083 | case CDP_PLATFORM_TLV: | |
1084 | break; | |
1085 | case CDP_NATIVE_VLAN_TLV: | |
1086 | nvlan = *ss; | |
1087 | break; | |
1088 | case CDP_APPLIANCE_VLAN_TLV: | |
1089 | t = (const uchar *)ss; | |
1090 | while (tlen > 0) { | |
1091 | if (tlen < 3) | |
1092 | goto pkt_short; | |
1093 | ||
1094 | applid = t[0]; | |
1095 | ss = (const ushort *)(t + 1); | |
1096 | ||
1097 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1098 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1099 | vlan = *ss; | |
1100 | #else | |
1101 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1102 | #endif | |
1103 | t += 3; tlen -= 3; | |
1104 | } | |
1105 | break; | |
1106 | case CDP_TRIGGER_TLV: | |
1107 | break; | |
1108 | case CDP_POWER_CONSUMPTION_TLV: | |
1109 | break; | |
1110 | case CDP_SYSNAME_TLV: | |
1111 | break; | |
1112 | case CDP_SYSOBJECT_TLV: | |
1113 | break; | |
1114 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1115 | break; | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | CDPApplianceVLAN = vlan; | |
1120 | CDPNativeVLAN = nvlan; | |
1121 | ||
1122 | CDPOK = 1; | |
1123 | return; | |
1124 | ||
1125 | pkt_short: | |
1126 | printf("** CDP packet is too short\n"); | |
1127 | return; | |
1128 | } | |
1129 | ||
1130 | static void CDPStart(void) | |
1131 | { | |
1132 | #if defined(CONFIG_NET_MULTI) | |
1133 | printf ("Using %s device\n", eth_get_name()); | |
1134 | #endif | |
1135 | CDPSeq = 0; | |
1136 | CDPOK = 0; | |
1137 | ||
1138 | CDPNativeVLAN = htons(-1); | |
1139 | CDPApplianceVLAN = htons(-1); | |
1140 | ||
1141 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1142 | NetSetHandler (CDPDummyHandler); | |
1143 | ||
1144 | CDPSendTrigger(); | |
1145 | } | |
610f2e9c | 1146 | #endif |
a3d991bd WD |
1147 | |
1148 | ||
2d966958 | 1149 | void |
a3d991bd | 1150 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1151 | { |
1152 | Ethernet_t *et; | |
1153 | IP_t *ip; | |
1154 | ARP_t *arp; | |
1155 | IPaddr_t tmp; | |
1156 | int x; | |
a3d991bd | 1157 | uchar *pkt; |
643d1ab2 | 1158 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1159 | int iscdp; |
1160 | #endif | |
1161 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1162 | ||
1163 | #ifdef ET_DEBUG | |
1164 | printf("packet received\n"); | |
1165 | #endif | |
2d966958 | 1166 | |
a3d991bd | 1167 | NetRxPkt = inpkt; |
2d966958 | 1168 | NetRxPktLen = len; |
a3d991bd WD |
1169 | et = (Ethernet_t *)inpkt; |
1170 | ||
1171 | /* too small packet? */ | |
1172 | if (len < ETHER_HDR_SIZE) | |
1173 | return; | |
1174 | ||
f85b6071 RJ |
1175 | #ifdef CONFIG_API |
1176 | if (push_packet) { | |
1177 | (*push_packet)(inpkt, len); | |
1178 | return; | |
1179 | } | |
1180 | #endif | |
1181 | ||
643d1ab2 | 1182 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1183 | /* keep track if packet is CDP */ |
1184 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1185 | #endif | |
1186 | ||
1187 | myvlanid = ntohs(NetOurVLAN); | |
1188 | if (myvlanid == (ushort)-1) | |
1189 | myvlanid = VLAN_NONE; | |
1190 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1191 | if (mynvlanid == (ushort)-1) | |
1192 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1193 | |
1194 | x = ntohs(et->et_protlen); | |
1195 | ||
a3d991bd WD |
1196 | #ifdef ET_DEBUG |
1197 | printf("packet received\n"); | |
1198 | #endif | |
1199 | ||
2d966958 WD |
1200 | if (x < 1514) { |
1201 | /* | |
1202 | * Got a 802 packet. Check the other protocol field. | |
1203 | */ | |
1204 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1205 | |
1206 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1207 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1208 | |
1209 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1210 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1211 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1212 | |
1213 | } else { /* VLAN packet */ | |
1214 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1215 | ||
1216 | #ifdef ET_DEBUG | |
1217 | printf("VLAN packet received\n"); | |
1218 | #endif | |
1219 | /* too small packet? */ | |
1220 | if (len < VLAN_ETHER_HDR_SIZE) | |
1221 | return; | |
1222 | ||
1223 | /* if no VLAN active */ | |
1224 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
643d1ab2 | 1225 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1226 | && iscdp == 0 |
1227 | #endif | |
1228 | ) | |
1229 | return; | |
1230 | ||
1231 | cti = ntohs(vet->vet_tag); | |
1232 | vlanid = cti & VLAN_IDMASK; | |
1233 | x = ntohs(vet->vet_type); | |
1234 | ||
1235 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1236 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1237 | } |
1238 | ||
1239 | #ifdef ET_DEBUG | |
1240 | printf("Receive from protocol 0x%x\n", x); | |
1241 | #endif | |
1242 | ||
643d1ab2 | 1243 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1244 | if (iscdp) { |
1245 | CDPHandler((uchar *)ip, len); | |
1246 | return; | |
1247 | } | |
1248 | #endif | |
1249 | ||
1250 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1251 | if (vlanid == VLAN_NONE) | |
1252 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1253 | /* not matched? */ | |
1254 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1255 | return; | |
1256 | } | |
1257 | ||
2d966958 WD |
1258 | switch (x) { |
1259 | ||
1260 | case PROT_ARP: | |
1261 | /* | |
1262 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1263 | * - REQUEST packets will be answered by sending our |
1264 | * IP address - if we know it. | |
1265 | * - REPLY packates are expected only after we asked | |
1266 | * for the TFTP server's or the gateway's ethernet | |
1267 | * address; so if we receive such a packet, we set | |
1268 | * the server ethernet address | |
2d966958 WD |
1269 | */ |
1270 | #ifdef ET_DEBUG | |
4b9206ed | 1271 | puts ("Got ARP\n"); |
2d966958 WD |
1272 | #endif |
1273 | arp = (ARP_t *)ip; | |
1274 | if (len < ARP_HDR_SIZE) { | |
1275 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1276 | return; | |
1277 | } | |
1278 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1279 | return; | |
1280 | } | |
1281 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1282 | return; | |
1283 | } | |
1284 | if (arp->ar_hln != 6) { | |
1285 | return; | |
1286 | } | |
1287 | if (arp->ar_pln != 4) { | |
1288 | return; | |
1289 | } | |
1290 | ||
1291 | if (NetOurIP == 0) { | |
1292 | return; | |
1293 | } | |
1294 | ||
1295 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1296 | return; | |
1297 | } | |
1298 | ||
1299 | switch (ntohs(arp->ar_op)) { | |
1300 | case ARPOP_REQUEST: /* reply with our IP address */ | |
1301 | #ifdef ET_DEBUG | |
4b9206ed | 1302 | puts ("Got ARP REQUEST, return our IP\n"); |
2d966958 | 1303 | #endif |
a3d991bd WD |
1304 | pkt = (uchar *)et; |
1305 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1306 | arp->ar_op = htons(ARPOP_REPLY); |
1307 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1308 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1309 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1310 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1311 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1312 | return; |
73a8b27c WD |
1313 | |
1314 | case ARPOP_REPLY: /* arp reply */ | |
1315 | /* are we waiting for a reply */ | |
1316 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1317 | break; | |
2d966958 | 1318 | #ifdef ET_DEBUG |
73a8b27c WD |
1319 | printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n", |
1320 | arp->ar_data[0], arp->ar_data[1], | |
1321 | arp->ar_data[2], arp->ar_data[3], | |
1322 | arp->ar_data[4], arp->ar_data[5]); | |
2d966958 | 1323 | #endif |
73a8b27c WD |
1324 | |
1325 | tmp = NetReadIP(&arp->ar_data[6]); | |
1326 | ||
1327 | /* matched waiting packet's address */ | |
1328 | if (tmp == NetArpWaitReplyIP) { | |
1329 | #ifdef ET_DEBUG | |
4b9206ed | 1330 | puts ("Got it\n"); |
73a8b27c WD |
1331 | #endif |
1332 | /* save address for later use */ | |
1333 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1334 | ||
68ceb29e WD |
1335 | #ifdef CONFIG_NETCONSOLE |
1336 | (*packetHandler)(0,0,0,0); | |
1337 | #endif | |
73a8b27c WD |
1338 | /* modify header, and transmit it */ |
1339 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1340 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1341 | ||
1342 | /* no arp request pending now */ | |
1343 | NetArpWaitPacketIP = 0; | |
1344 | NetArpWaitTxPacketSize = 0; | |
1345 | NetArpWaitPacketMAC = NULL; | |
1346 | ||
1347 | } | |
2d966958 WD |
1348 | return; |
1349 | default: | |
1350 | #ifdef ET_DEBUG | |
1351 | printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); | |
1352 | #endif | |
1353 | return; | |
1354 | } | |
289f932c | 1355 | break; |
2d966958 WD |
1356 | |
1357 | case PROT_RARP: | |
1358 | #ifdef ET_DEBUG | |
4b9206ed | 1359 | puts ("Got RARP\n"); |
2d966958 WD |
1360 | #endif |
1361 | arp = (ARP_t *)ip; | |
1362 | if (len < ARP_HDR_SIZE) { | |
1363 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1364 | return; | |
1365 | } | |
1366 | ||
1367 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1368 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1369 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1370 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1371 | ||
4b9206ed | 1372 | puts ("invalid RARP header\n"); |
2d966958 WD |
1373 | } else { |
1374 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1375 | if (NetServerIP == 0) |
1376 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1377 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1378 | ||
1379 | (*packetHandler)(0,0,0,0); | |
1380 | } | |
1381 | break; | |
1382 | ||
1383 | case PROT_IP: | |
1384 | #ifdef ET_DEBUG | |
4b9206ed | 1385 | puts ("Got IP\n"); |
2d966958 WD |
1386 | #endif |
1387 | if (len < IP_HDR_SIZE) { | |
25dbe98a | 1388 | debug ("len bad %d < %lu\n", len, (ulong)IP_HDR_SIZE); |
2d966958 WD |
1389 | return; |
1390 | } | |
1391 | if (len < ntohs(ip->ip_len)) { | |
1392 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1393 | return; | |
1394 | } | |
1395 | len = ntohs(ip->ip_len); | |
1396 | #ifdef ET_DEBUG | |
1397 | printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); | |
1398 | #endif | |
1399 | if ((ip->ip_hl_v & 0xf0) != 0x40) { | |
1400 | return; | |
1401 | } | |
1402 | if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */ | |
1403 | return; | |
1404 | } | |
6b52cfe1 RB |
1405 | /* can't deal with headers > 20 bytes */ |
1406 | if ((ip->ip_hl_v & 0x0f) > 0x05) { | |
1407 | return; | |
1408 | } | |
2d966958 | 1409 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { |
4b9206ed | 1410 | puts ("checksum bad\n"); |
2d966958 WD |
1411 | return; |
1412 | } | |
1413 | tmp = NetReadIP(&ip->ip_dst); | |
1414 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
53a5c424 | 1415 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 1416 | if (Mcast_addr != tmp) |
53a5c424 | 1417 | #endif |
2d966958 WD |
1418 | return; |
1419 | } | |
1420 | /* | |
1421 | * watch for ICMP host redirects | |
1422 | * | |
8bde7f77 WD |
1423 | * There is no real handler code (yet). We just watch |
1424 | * for ICMP host redirect messages. In case anybody | |
1425 | * sees these messages: please contact me | |
1426 | * (wd@denx.de), or - even better - send me the | |
1427 | * necessary fixes :-) | |
2d966958 | 1428 | * |
8bde7f77 WD |
1429 | * Note: in all cases where I have seen this so far |
1430 | * it was a problem with the router configuration, | |
1431 | * for instance when a router was configured in the | |
1432 | * BOOTP reply, but the TFTP server was on the same | |
1433 | * subnet. So this is probably a warning that your | |
1434 | * configuration might be wrong. But I'm not really | |
1435 | * sure if there aren't any other situations. | |
2d966958 WD |
1436 | */ |
1437 | if (ip->ip_p == IPPROTO_ICMP) { | |
1438 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1439 | ||
73a8b27c WD |
1440 | switch (icmph->type) { |
1441 | case ICMP_REDIRECT: | |
90dc6704 WD |
1442 | if (icmph->code != ICMP_REDIR_HOST) |
1443 | return; | |
1444 | puts (" ICMP Host Redirect to "); | |
1445 | print_IPaddr(icmph->un.gateway); | |
1446 | putc(' '); | |
8534bf9a | 1447 | return; |
643d1ab2 | 1448 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
1449 | case ICMP_ECHO_REPLY: |
1450 | /* | |
1451 | * IP header OK. Pass the packet to the current handler. | |
1452 | */ | |
1453 | /* XXX point to ip packet */ | |
1454 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
8534bf9a | 1455 | return; |
83853178 ES |
1456 | case ICMP_ECHO_REQUEST: |
1457 | #ifdef ET_DEBUG | |
1458 | printf ("Got ICMP ECHO REQUEST, return %d bytes \n", | |
1459 | ETHER_HDR_SIZE + len); | |
1460 | #endif | |
1461 | memcpy (&et->et_dest[0], &et->et_src[0], 6); | |
1462 | memcpy (&et->et_src[ 0], NetOurEther, 6); | |
1463 | ||
1464 | ip->ip_sum = 0; | |
1465 | ip->ip_off = 0; | |
1466 | NetCopyIP((void*)&ip->ip_dst, &ip->ip_src); | |
1467 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); | |
1468 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1); | |
1469 | ||
1470 | icmph->type = ICMP_ECHO_REPLY; | |
1471 | icmph->checksum = 0; | |
1472 | icmph->checksum = ~NetCksum((uchar *)icmph, | |
1473 | (len - IP_HDR_SIZE_NO_UDP) >> 1); | |
1474 | (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len); | |
1475 | return; | |
73a8b27c WD |
1476 | #endif |
1477 | default: | |
1478 | return; | |
1479 | } | |
2d966958 WD |
1480 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1481 | return; | |
1482 | } | |
1483 | ||
8534bf9a SR |
1484 | #ifdef CONFIG_UDP_CHECKSUM |
1485 | if (ip->udp_xsum != 0) { | |
b2f50807 | 1486 | ulong xsum; |
8534bf9a SR |
1487 | ushort *sumptr; |
1488 | ushort sumlen; | |
1489 | ||
1490 | xsum = ip->ip_p; | |
1491 | xsum += (ntohs(ip->udp_len)); | |
1492 | xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; | |
1493 | xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; | |
1494 | xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; | |
1495 | xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; | |
1496 | ||
1497 | sumlen = ntohs(ip->udp_len); | |
1498 | sumptr = (ushort *) &(ip->udp_src); | |
1499 | ||
1500 | while (sumlen > 1) { | |
b2f50807 | 1501 | ushort sumdata; |
8534bf9a SR |
1502 | |
1503 | sumdata = *sumptr++; | |
1504 | xsum += ntohs(sumdata); | |
1505 | sumlen -= 2; | |
1506 | } | |
1507 | if (sumlen > 0) { | |
b2f50807 | 1508 | ushort sumdata; |
8534bf9a SR |
1509 | |
1510 | sumdata = *(unsigned char *) sumptr; | |
b2f50807 | 1511 | sumdata = (sumdata << 8) & 0xff00; |
8534bf9a SR |
1512 | xsum += sumdata; |
1513 | } | |
1514 | while ((xsum >> 16) != 0) { | |
b2f50807 | 1515 | xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); |
8534bf9a SR |
1516 | } |
1517 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { | |
9b55a253 WD |
1518 | printf(" UDP wrong checksum %08lx %08x\n", |
1519 | xsum, ntohs(ip->udp_xsum)); | |
8534bf9a SR |
1520 | return; |
1521 | } | |
1522 | } | |
1523 | #endif | |
1524 | ||
53a5c424 | 1525 | |
68ceb29e WD |
1526 | #ifdef CONFIG_NETCONSOLE |
1527 | nc_input_packet((uchar *)ip +IP_HDR_SIZE, | |
1528 | ntohs(ip->udp_dst), | |
1529 | ntohs(ip->udp_src), | |
1530 | ntohs(ip->udp_len) - 8); | |
1531 | #endif | |
2d966958 WD |
1532 | /* |
1533 | * IP header OK. Pass the packet to the current handler. | |
1534 | */ | |
1535 | (*packetHandler)((uchar *)ip +IP_HDR_SIZE, | |
1536 | ntohs(ip->udp_dst), | |
1537 | ntohs(ip->udp_src), | |
1538 | ntohs(ip->udp_len) - 8); | |
2d966958 WD |
1539 | break; |
1540 | } | |
1541 | } | |
1542 | ||
1543 | ||
1544 | /**********************************************************************/ | |
1545 | ||
1546 | static int net_check_prereq (proto_t protocol) | |
1547 | { | |
1548 | switch (protocol) { | |
6e592385 | 1549 | /* Fall through */ |
643d1ab2 | 1550 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 1551 | case PING: |
6e592385 WD |
1552 | if (NetPingIP == 0) { |
1553 | puts ("*** ERROR: ping address not given\n"); | |
1554 | return (1); | |
1555 | } | |
1556 | goto common; | |
cbd8a35c | 1557 | #endif |
643d1ab2 | 1558 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
1559 | case SNTP: |
1560 | if (NetNtpServerIP == 0) { | |
1561 | puts ("*** ERROR: NTP server address not given\n"); | |
1562 | return (1); | |
1563 | } | |
1564 | goto common; | |
1565 | #endif | |
643d1ab2 | 1566 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c | 1567 | case NFS: |
73a8b27c | 1568 | #endif |
68ceb29e | 1569 | case NETCONS: |
2d966958 | 1570 | case TFTP: |
6e592385 WD |
1571 | if (NetServerIP == 0) { |
1572 | puts ("*** ERROR: `serverip' not set\n"); | |
1573 | return (1); | |
1574 | } | |
643d1ab2 | 1575 | #if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) |
b2f50807 | 1576 | common: |
73a8b27c WD |
1577 | #endif |
1578 | ||
6e592385 WD |
1579 | if (NetOurIP == 0) { |
1580 | puts ("*** ERROR: `ipaddr' not set\n"); | |
1581 | return (1); | |
1582 | } | |
1583 | /* Fall through */ | |
2d966958 WD |
1584 | |
1585 | case DHCP: | |
1586 | case RARP: | |
1587 | case BOOTP: | |
a3d991bd | 1588 | case CDP: |
6e592385 | 1589 | if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { |
2d966958 | 1590 | #ifdef CONFIG_NET_MULTI |
6e592385 WD |
1591 | extern int eth_get_dev_index (void); |
1592 | int num = eth_get_dev_index (); | |
2d966958 | 1593 | |
6e592385 WD |
1594 | switch (num) { |
1595 | case -1: | |
2d966958 WD |
1596 | puts ("*** ERROR: No ethernet found.\n"); |
1597 | return (1); | |
6e592385 | 1598 | case 0: |
2d966958 WD |
1599 | puts ("*** ERROR: `ethaddr' not set\n"); |
1600 | break; | |
6e592385 | 1601 | default: |
8bde7f77 | 1602 | printf ("*** ERROR: `eth%daddr' not set\n", |
2d966958 WD |
1603 | num); |
1604 | break; | |
6e592385 | 1605 | } |
2d966958 | 1606 | |
6e592385 WD |
1607 | NetStartAgain (); |
1608 | return (2); | |
2d966958 | 1609 | #else |
6e592385 WD |
1610 | puts ("*** ERROR: `ethaddr' not set\n"); |
1611 | return (1); | |
2d966958 | 1612 | #endif |
6e592385 WD |
1613 | } |
1614 | /* Fall through */ | |
1615 | default: | |
1616 | return (0); | |
2d966958 | 1617 | } |
6e592385 | 1618 | return (0); /* OK */ |
2d966958 WD |
1619 | } |
1620 | /**********************************************************************/ | |
1621 | ||
1622 | int | |
1623 | NetCksumOk(uchar * ptr, int len) | |
1624 | { | |
1625 | return !((NetCksum(ptr, len) + 1) & 0xfffe); | |
1626 | } | |
1627 | ||
1628 | ||
1629 | unsigned | |
1630 | NetCksum(uchar * ptr, int len) | |
1631 | { | |
1632 | ulong xsum; | |
9d2a873b | 1633 | ushort *p = (ushort *)ptr; |
2d966958 WD |
1634 | |
1635 | xsum = 0; | |
1636 | while (len-- > 0) | |
7bc5ee07 | 1637 | xsum += *p++; |
2d966958 WD |
1638 | xsum = (xsum & 0xffff) + (xsum >> 16); |
1639 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1640 | return (xsum & 0xffff); | |
1641 | } | |
1642 | ||
a3d991bd WD |
1643 | int |
1644 | NetEthHdrSize(void) | |
1645 | { | |
1646 | ushort myvlanid; | |
2d966958 | 1647 | |
a3d991bd WD |
1648 | myvlanid = ntohs(NetOurVLAN); |
1649 | if (myvlanid == (ushort)-1) | |
1650 | myvlanid = VLAN_NONE; | |
1651 | ||
1652 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; | |
1653 | } | |
1654 | ||
1655 | int | |
2d966958 WD |
1656 | NetSetEther(volatile uchar * xet, uchar * addr, uint prot) |
1657 | { | |
1658 | Ethernet_t *et = (Ethernet_t *)xet; | |
a3d991bd WD |
1659 | ushort myvlanid; |
1660 | ||
1661 | myvlanid = ntohs(NetOurVLAN); | |
1662 | if (myvlanid == (ushort)-1) | |
1663 | myvlanid = VLAN_NONE; | |
2d966958 WD |
1664 | |
1665 | memcpy (et->et_dest, addr, 6); | |
1666 | memcpy (et->et_src, NetOurEther, 6); | |
a3d991bd | 1667 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
2d966958 | 1668 | et->et_protlen = htons(prot); |
a3d991bd WD |
1669 | return ETHER_HDR_SIZE; |
1670 | } else { | |
1671 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; | |
2d966958 | 1672 | |
a3d991bd WD |
1673 | vet->vet_vlan_type = htons(PROT_VLAN); |
1674 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); | |
1675 | vet->vet_type = htons(prot); | |
1676 | return VLAN_ETHER_HDR_SIZE; | |
1677 | } | |
1678 | } | |
2d966958 WD |
1679 | |
1680 | void | |
1681 | NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) | |
1682 | { | |
1683 | volatile IP_t *ip = (IP_t *)xip; | |
1684 | ||
1685 | /* | |
1686 | * If the data is an odd number of bytes, zero the | |
1687 | * byte after the last byte so that the checksum | |
1688 | * will work. | |
1689 | */ | |
1690 | if (len & 1) | |
1691 | xip[IP_HDR_SIZE + len] = 0; | |
1692 | ||
1693 | /* | |
1694 | * Construct an IP and UDP header. | |
6e592385 | 1695 | * (need to set no fragment bit - XXX) |
2d966958 WD |
1696 | */ |
1697 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
1698 | ip->ip_tos = 0; | |
1699 | ip->ip_len = htons(IP_HDR_SIZE + len); | |
1700 | ip->ip_id = htons(NetIPID++); | |
1701 | ip->ip_off = htons(0x4000); /* No fragmentation */ | |
1702 | ip->ip_ttl = 255; | |
1703 | ip->ip_p = 17; /* UDP */ | |
1704 | ip->ip_sum = 0; | |
1705 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
1706 | NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ | |
1707 | ip->udp_src = htons(sport); | |
1708 | ip->udp_dst = htons(dport); | |
1709 | ip->udp_len = htons(8 + len); | |
1710 | ip->udp_xsum = 0; | |
1711 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
1712 | } | |
1713 | ||
77ddac94 | 1714 | void copy_filename (char *dst, char *src, int size) |
2d966958 WD |
1715 | { |
1716 | if (*src && (*src == '"')) { | |
1717 | ++src; | |
1718 | --size; | |
1719 | } | |
1720 | ||
1721 | while ((--size > 0) && *src && (*src != '"')) { | |
1722 | *dst++ = *src++; | |
1723 | } | |
1724 | *dst = '\0'; | |
1725 | } | |
1726 | ||
610f2e9c | 1727 | #endif |
2d966958 WD |
1728 | |
1729 | void ip_to_string (IPaddr_t x, char *s) | |
1730 | { | |
a3d991bd WD |
1731 | x = ntohl (x); |
1732 | sprintf (s, "%d.%d.%d.%d", | |
1733 | (int) ((x >> 24) & 0xff), | |
1734 | (int) ((x >> 16) & 0xff), | |
1735 | (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) | |
6e592385 | 1736 | ); |
2d966958 WD |
1737 | } |
1738 | ||
73a8b27c | 1739 | IPaddr_t string_to_ip(char *s) |
2d966958 WD |
1740 | { |
1741 | IPaddr_t addr; | |
73a8b27c | 1742 | char *e; |
2d966958 WD |
1743 | int i; |
1744 | ||
73a8b27c WD |
1745 | if (s == NULL) |
1746 | return(0); | |
2d966958 WD |
1747 | |
1748 | for (addr=0, i=0; i<4; ++i) { | |
1749 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
1750 | addr <<= 8; | |
1751 | addr |= (val & 0xFF); | |
1752 | if (s) { | |
1753 | s = (*e) ? e+1 : e; | |
1754 | } | |
1755 | } | |
1756 | ||
1757 | return (htonl(addr)); | |
1758 | } | |
73a8b27c | 1759 | |
a3d991bd WD |
1760 | void VLAN_to_string(ushort x, char *s) |
1761 | { | |
1762 | x = ntohs(x); | |
1763 | ||
1764 | if (x == (ushort)-1) | |
1765 | x = VLAN_NONE; | |
1766 | ||
1767 | if (x == VLAN_NONE) | |
1768 | strcpy(s, "none"); | |
1769 | else | |
1770 | sprintf(s, "%d", x & VLAN_IDMASK); | |
1771 | } | |
1772 | ||
1773 | ushort string_to_VLAN(char *s) | |
1774 | { | |
1775 | ushort id; | |
1776 | ||
1777 | if (s == NULL) | |
b9711de1 | 1778 | return htons(VLAN_NONE); |
a3d991bd WD |
1779 | |
1780 | if (*s < '0' || *s > '9') | |
1781 | id = VLAN_NONE; | |
1782 | else | |
1783 | id = (ushort)simple_strtoul(s, NULL, 10); | |
1784 | ||
b9711de1 | 1785 | return htons(id); |
a3d991bd WD |
1786 | } |
1787 | ||
73a8b27c WD |
1788 | void print_IPaddr (IPaddr_t x) |
1789 | { | |
a3d991bd | 1790 | char tmp[16]; |
73a8b27c | 1791 | |
a3d991bd | 1792 | ip_to_string (x, tmp); |
73a8b27c | 1793 | |
a3d991bd | 1794 | puts (tmp); |
73a8b27c WD |
1795 | } |
1796 | ||
1797 | IPaddr_t getenv_IPaddr (char *var) | |
1798 | { | |
1799 | return (string_to_ip(getenv(var))); | |
1800 | } | |
a3d991bd WD |
1801 | |
1802 | ushort getenv_VLAN(char *var) | |
1803 | { | |
1804 | return (string_to_VLAN(getenv(var))); | |
1805 | } |