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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 GL |
97 | #ifndef CONFIG_ARP_TIMEOUT |
98 | # define ARP_TIMEOUT 50UL /* Deciseconds before trying ARP again */ | |
99 | #elif (CONFIG_ARP_TIMEOUT < 100) | |
100 | # error "Due to possible overflow CONFIG_ARP_TIMEOUT must be greater than 100ms" | |
101 | #else | |
102 | # if (CONFIG_ARP_TIMEOUT % 100) | |
103 | # warning "Supported ARP_TIMEOUT precision is 100ms" | |
104 | # endif | |
105 | # define ARP_TIMEOUT (CONFIG_ARP_TIMEOUT / 100) | |
106 | #endif | |
107 | ||
108 | ||
73a8b27c | 109 | #ifndef CONFIG_NET_RETRY_COUNT |
40cb90ee | 110 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
73a8b27c | 111 | #else |
40cb90ee | 112 | # define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT |
73a8b27c WD |
113 | #endif |
114 | ||
2d966958 WD |
115 | #if 0 |
116 | #define ET_DEBUG | |
117 | #endif | |
118 | ||
119 | /** BOOTP EXTENTIONS **/ | |
120 | ||
121 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
122 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
123 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
1fe80d79 | 124 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 SR |
125 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ |
126 | #endif | |
2d966958 WD |
127 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
128 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
129 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
130 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
131 | ||
53a5c424 DU |
132 | #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ |
133 | IPaddr_t Mcast_addr; | |
134 | #endif | |
135 | ||
2d966958 WD |
136 | /** END OF BOOTP EXTENTIONS **/ |
137 | ||
138 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
139 | uchar NetOurEther[6]; /* Our ethernet address */ | |
140 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 141 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 | 142 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
40cb90ee | 143 | IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
2d966958 WD |
144 | volatile uchar *NetRxPkt; /* Current receive packet */ |
145 | int NetRxPktLen; /* Current rx packet length */ | |
146 | unsigned NetIPID; /* IP packet ID */ | |
147 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
148 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
149 | uchar NetEtherNullAddr[6] = |
150 | { 0, 0, 0, 0, 0, 0 }; | |
f85b6071 RJ |
151 | #ifdef CONFIG_API |
152 | void (*push_packet)(volatile void *, int len) = 0; | |
153 | #endif | |
643d1ab2 | 154 | #if defined(CONFIG_CMD_CDP) |
6e592385 | 155 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
156 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
157 | #endif | |
2d966958 WD |
158 | int NetState; /* Network loop state */ |
159 | #ifdef CONFIG_NET_MULTI | |
160 | int NetRestartWrap = 0; /* Tried all network devices */ | |
161 | static int NetRestarted = 0; /* Network loop restarted */ | |
162 | static int NetDevExists = 0; /* At least one device configured */ | |
163 | #endif | |
164 | ||
6e592385 WD |
165 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
166 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
167 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 168 | |
2d966958 WD |
169 | char BootFile[128]; /* Boot File name */ |
170 | ||
643d1ab2 | 171 | #if defined(CONFIG_CMD_PING) |
53677ef1 | 172 | IPaddr_t NetPingIP; /* the ip address to ping */ |
73a8b27c WD |
173 | |
174 | static void PingStart(void); | |
175 | #endif | |
176 | ||
643d1ab2 | 177 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
178 | static void CDPStart(void); |
179 | #endif | |
180 | ||
643d1ab2 | 181 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
182 | IPaddr_t NetNtpServerIP; /* NTP server IP address */ |
183 | int NetTimeOffset=0; /* offset time from UTC */ | |
184 | #endif | |
185 | ||
68ceb29e WD |
186 | #ifdef CONFIG_NETCONSOLE |
187 | void NcStart(void); | |
188 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
189 | #endif | |
190 | ||
2d966958 WD |
191 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
192 | ||
193 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
194 | ||
195 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
196 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
197 | static ulong timeStart; /* Time base value */ |
198 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
199 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
200 | ||
201 | static int net_check_prereq (proto_t protocol); | |
202 | ||
73a8b27c WD |
203 | /**********************************************************************/ |
204 | ||
205 | IPaddr_t NetArpWaitPacketIP; | |
206 | IPaddr_t NetArpWaitReplyIP; | |
207 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
b2f50807 | 208 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ |
73a8b27c | 209 | int NetArpWaitTxPacketSize; |
53677ef1 | 210 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; |
73a8b27c WD |
211 | ulong NetArpWaitTimerStart; |
212 | int NetArpWaitTry; | |
213 | ||
6e592385 | 214 | void ArpRequest (void) |
73a8b27c WD |
215 | { |
216 | int i; | |
217 | volatile uchar *pkt; | |
6e592385 | 218 | ARP_t *arp; |
73a8b27c WD |
219 | |
220 | #ifdef ET_DEBUG | |
6e592385 | 221 | printf ("ARP broadcast %d\n", NetArpWaitTry); |
73a8b27c WD |
222 | #endif |
223 | pkt = NetTxPacket; | |
224 | ||
6e592385 | 225 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 226 | |
6e592385 | 227 | arp = (ARP_t *) pkt; |
73a8b27c | 228 | |
6e592385 WD |
229 | arp->ar_hrd = htons (ARP_ETHER); |
230 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
231 | arp->ar_hln = 6; |
232 | arp->ar_pln = 4; | |
6e592385 | 233 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 234 | |
b2f50807 WD |
235 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
236 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
6e592385 WD |
237 | for (i = 10; i < 16; ++i) { |
238 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
239 | } |
240 | ||
6e592385 WD |
241 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
242 | (NetOurIP & NetOurSubnetMask)) { | |
243 | if (NetOurGatewayIP == 0) { | |
244 | puts ("## Warning: gatewayip needed but not set\n"); | |
d509b812 WD |
245 | NetArpWaitReplyIP = NetArpWaitPacketIP; |
246 | } else { | |
247 | NetArpWaitReplyIP = NetOurGatewayIP; | |
6e592385 | 248 | } |
6e592385 WD |
249 | } else { |
250 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
251 | } | |
73a8b27c | 252 | |
6e592385 WD |
253 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
254 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
255 | } |
256 | ||
257 | void ArpTimeoutCheck(void) | |
258 | { | |
259 | ulong t; | |
260 | ||
261 | if (!NetArpWaitPacketIP) | |
262 | return; | |
263 | ||
264 | t = get_timer(0); | |
265 | ||
266 | /* check for arp timeout */ | |
40cb90ee | 267 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT * CFG_HZ / 10) { |
73a8b27c WD |
268 | NetArpWaitTry++; |
269 | ||
270 | if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { | |
271 | puts ("\nARP Retry count exceeded; starting again\n"); | |
272 | NetArpWaitTry = 0; | |
273 | NetStartAgain(); | |
274 | } else { | |
275 | NetArpWaitTimerStart = t; | |
276 | ArpRequest(); | |
277 | } | |
278 | } | |
279 | } | |
280 | ||
2d966958 WD |
281 | /**********************************************************************/ |
282 | /* | |
283 | * Main network processing loop. | |
284 | */ | |
285 | ||
286 | int | |
287 | NetLoop(proto_t protocol) | |
288 | { | |
2d966958 WD |
289 | bd_t *bd = gd->bd; |
290 | ||
291 | #ifdef CONFIG_NET_MULTI | |
292 | NetRestarted = 0; | |
293 | NetDevExists = 0; | |
294 | #endif | |
295 | ||
73a8b27c WD |
296 | /* XXX problem with bss workaround */ |
297 | NetArpWaitPacketMAC = NULL; | |
298 | NetArpWaitTxPacket = NULL; | |
299 | NetArpWaitPacketIP = 0; | |
300 | NetArpWaitReplyIP = 0; | |
301 | NetArpWaitTxPacket = NULL; | |
302 | NetTxPacket = NULL; | |
303 | ||
2d966958 WD |
304 | if (!NetTxPacket) { |
305 | int i; | |
2d966958 WD |
306 | /* |
307 | * Setup packet buffers, aligned correctly. | |
308 | */ | |
309 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
310 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
311 | for (i = 0; i < PKTBUFSRX; i++) { | |
312 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
313 | } | |
73a8b27c WD |
314 | } |
315 | ||
316 | if (!NetArpWaitTxPacket) { | |
317 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
318 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
319 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
320 | } |
321 | ||
322 | eth_halt(); | |
6e592385 | 323 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 324 | eth_set_current(); |
6e592385 | 325 | #endif |
b1bf6f2c WD |
326 | if (eth_init(bd) < 0) { |
327 | eth_halt(); | |
6e592385 | 328 | return(-1); |
b1bf6f2c | 329 | } |
2d966958 WD |
330 | |
331 | restart: | |
332 | #ifdef CONFIG_NET_MULTI | |
333 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
334 | #else | |
335 | memcpy (NetOurEther, bd->bi_enetaddr, 6); | |
336 | #endif | |
337 | ||
338 | NetState = NETLOOP_CONTINUE; | |
339 | ||
340 | /* | |
341 | * Start the ball rolling with the given start function. From | |
342 | * here on, this code is a state machine driven by received | |
343 | * packets and timer events. | |
344 | */ | |
345 | ||
346 | switch (protocol) { | |
643d1ab2 | 347 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
348 | case NFS: |
349 | #endif | |
643d1ab2 | 350 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 351 | case PING: |
ea287deb | 352 | #endif |
643d1ab2 | 353 | #if defined(CONFIG_CMD_SNTP) |
ea287deb | 354 | case SNTP: |
73a8b27c | 355 | #endif |
68ceb29e | 356 | case NETCONS: |
2d966958 WD |
357 | case TFTP: |
358 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); | |
2d966958 WD |
359 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); |
360 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
a3d991bd WD |
361 | NetOurVLAN = getenv_VLAN("vlan"); |
362 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
73a8b27c WD |
363 | |
364 | switch (protocol) { | |
643d1ab2 | 365 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
366 | case NFS: |
367 | #endif | |
68ceb29e | 368 | case NETCONS: |
73a8b27c WD |
369 | case TFTP: |
370 | NetServerIP = getenv_IPaddr ("serverip"); | |
371 | break; | |
643d1ab2 | 372 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
373 | case PING: |
374 | /* nothing */ | |
375 | break; | |
ea287deb | 376 | #endif |
643d1ab2 | 377 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
378 | case SNTP: |
379 | /* nothing */ | |
380 | break; | |
73a8b27c WD |
381 | #endif |
382 | default: | |
383 | break; | |
384 | } | |
385 | ||
2d966958 WD |
386 | break; |
387 | case BOOTP: | |
388 | case RARP: | |
389 | /* | |
8bde7f77 WD |
390 | * initialize our IP addr to 0 in order to accept ANY |
391 | * IP addr assigned to us by the BOOTP / RARP server | |
2d966958 WD |
392 | */ |
393 | NetOurIP = 0; | |
3d3befa7 | 394 | NetServerIP = getenv_IPaddr ("serverip"); |
b2f50807 WD |
395 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ |
396 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
397 | case CDP: | |
398 | NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */ | |
399 | NetOurNativeVLAN = getenv_VLAN("nvlan"); | |
2d966958 WD |
400 | break; |
401 | default: | |
402 | break; | |
403 | } | |
404 | ||
405 | switch (net_check_prereq (protocol)) { | |
406 | case 1: | |
407 | /* network not configured */ | |
b1bf6f2c | 408 | eth_halt(); |
1d0350ed | 409 | return (-1); |
2d966958 WD |
410 | |
411 | #ifdef CONFIG_NET_MULTI | |
412 | case 2: | |
413 | /* network device not configured */ | |
414 | break; | |
415 | #endif /* CONFIG_NET_MULTI */ | |
416 | ||
417 | case 0: | |
418 | #ifdef CONFIG_NET_MULTI | |
419 | NetDevExists = 1; | |
420 | #endif | |
421 | switch (protocol) { | |
422 | case TFTP: | |
423 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 424 | TftpStart(); |
2d966958 WD |
425 | break; |
426 | ||
643d1ab2 | 427 | #if defined(CONFIG_CMD_DHCP) |
2d966958 WD |
428 | case DHCP: |
429 | /* Start with a clean slate... */ | |
d407bf52 | 430 | BootpTry = 0; |
2d966958 | 431 | NetOurIP = 0; |
3d3befa7 | 432 | NetServerIP = getenv_IPaddr ("serverip"); |
2d966958 WD |
433 | DhcpRequest(); /* Basically same as BOOTP */ |
434 | break; | |
610f2e9c | 435 | #endif |
2d966958 WD |
436 | |
437 | case BOOTP: | |
438 | BootpTry = 0; | |
439 | BootpRequest (); | |
440 | break; | |
441 | ||
442 | case RARP: | |
443 | RarpTry = 0; | |
444 | RarpRequest (); | |
445 | break; | |
643d1ab2 | 446 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
447 | case PING: |
448 | PingStart(); | |
449 | break; | |
cbd8a35c | 450 | #endif |
643d1ab2 | 451 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
452 | case NFS: |
453 | NfsStart(); | |
454 | break; | |
a3d991bd | 455 | #endif |
643d1ab2 | 456 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
457 | case CDP: |
458 | CDPStart(); | |
459 | break; | |
68ceb29e WD |
460 | #endif |
461 | #ifdef CONFIG_NETCONSOLE | |
462 | case NETCONS: | |
463 | NcStart(); | |
464 | break; | |
ea287deb | 465 | #endif |
643d1ab2 | 466 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
467 | case SNTP: |
468 | SntpStart(); | |
469 | break; | |
73a8b27c | 470 | #endif |
2d966958 WD |
471 | default: |
472 | break; | |
473 | } | |
474 | ||
475 | NetBootFileXferSize = 0; | |
476 | break; | |
477 | } | |
478 | ||
643d1ab2 | 479 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
fc3e2165 WD |
480 | #if defined(CFG_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) |
481 | /* | |
42d1f039 | 482 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 483 | */ |
63ff004c | 484 | if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) { |
fc3e2165 WD |
485 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
486 | } else { | |
487 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
488 | } | |
489 | #endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ | |
490 | #endif /* CONFIG_MII, ... */ | |
2d966958 WD |
491 | |
492 | /* | |
493 | * Main packet reception loop. Loop receiving packets until | |
59acc296 | 494 | * someone sets `NetState' to a state that terminates. |
2d966958 WD |
495 | */ |
496 | for (;;) { | |
497 | WATCHDOG_RESET(); | |
498 | #ifdef CONFIG_SHOW_ACTIVITY | |
499 | { | |
500 | extern void show_activity(int arg); | |
501 | show_activity(1); | |
502 | } | |
503 | #endif | |
504 | /* | |
505 | * Check the ethernet for a new packet. The ethernet | |
506 | * receive routine will process it. | |
507 | */ | |
40cb90ee | 508 | eth_rx(); |
2d966958 WD |
509 | |
510 | /* | |
511 | * Abort if ctrl-c was pressed. | |
512 | */ | |
513 | if (ctrlc()) { | |
8bde7f77 | 514 | eth_halt(); |
4b9206ed | 515 | puts ("\nAbort\n"); |
1d0350ed | 516 | return (-1); |
2d966958 WD |
517 | } |
518 | ||
73a8b27c | 519 | ArpTimeoutCheck(); |
2d966958 WD |
520 | |
521 | /* | |
522 | * Check for a timeout, and run the timeout handler | |
523 | * if we have one. | |
524 | */ | |
e0ac62d7 | 525 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
526 | thand_f *x; |
527 | ||
643d1ab2 | 528 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
63153492 WD |
529 | # if defined(CFG_FAULT_ECHO_LINK_DOWN) && \ |
530 | defined(CONFIG_STATUS_LED) && \ | |
59acc296 | 531 | defined(STATUS_LED_RED) |
fc3e2165 | 532 | /* |
42d1f039 | 533 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 534 | */ |
63ff004c | 535 | if(miiphy_link(eth_get_dev()->name, CFG_FAULT_MII_ADDR)) { |
fc3e2165 WD |
536 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
537 | } else { | |
538 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
539 | } | |
59acc296 | 540 | # endif /* CFG_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 541 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
542 | x = timeHandler; |
543 | timeHandler = (thand_f *)0; | |
544 | (*x)(); | |
545 | } | |
546 | ||
547 | ||
548 | switch (NetState) { | |
549 | ||
550 | case NETLOOP_RESTART: | |
551 | #ifdef CONFIG_NET_MULTI | |
552 | NetRestarted = 1; | |
553 | #endif | |
554 | goto restart; | |
555 | ||
556 | case NETLOOP_SUCCESS: | |
557 | if (NetBootFileXferSize > 0) { | |
f34024d4 | 558 | char buf[20]; |
2d966958 WD |
559 | printf("Bytes transferred = %ld (%lx hex)\n", |
560 | NetBootFileXferSize, | |
561 | NetBootFileXferSize); | |
f34024d4 | 562 | sprintf(buf, "%lX", NetBootFileXferSize); |
2d966958 | 563 | setenv("filesize", buf); |
a3d991bd WD |
564 | |
565 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
566 | setenv("fileaddr", buf); | |
2d966958 WD |
567 | } |
568 | eth_halt(); | |
569 | return NetBootFileXferSize; | |
570 | ||
571 | case NETLOOP_FAIL: | |
1d0350ed | 572 | return (-1); |
2d966958 WD |
573 | } |
574 | } | |
575 | } | |
576 | ||
577 | /**********************************************************************/ | |
578 | ||
579 | static void | |
580 | startAgainTimeout(void) | |
581 | { | |
582 | NetState = NETLOOP_RESTART; | |
583 | } | |
584 | ||
585 | static void | |
586 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
587 | { | |
588 | /* Totally ignore the packet */ | |
589 | } | |
590 | ||
6e592385 | 591 | void NetStartAgain (void) |
2d966958 | 592 | { |
6e592385 WD |
593 | char *nretry; |
594 | int noretry = 0, once = 0; | |
a3d991bd | 595 | |
6e592385 WD |
596 | if ((nretry = getenv ("netretry")) != NULL) { |
597 | noretry = (strcmp (nretry, "no") == 0); | |
598 | once = (strcmp (nretry, "once") == 0); | |
599 | } | |
600 | if (noretry) { | |
601 | eth_halt (); | |
a3d991bd WD |
602 | NetState = NETLOOP_FAIL; |
603 | return; | |
604 | } | |
2d966958 | 605 | #ifndef CONFIG_NET_MULTI |
079c2c4f | 606 | NetSetTimeout (10UL * CFG_HZ, startAgainTimeout); |
6e592385 WD |
607 | NetSetHandler (startAgainHandler); |
608 | #else /* !CONFIG_NET_MULTI*/ | |
609 | eth_halt (); | |
8b0c5c12 | 610 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
6e592385 | 611 | eth_try_another (!NetRestarted); |
8b0c5c12 | 612 | #endif |
6e592385 WD |
613 | eth_init (gd->bd); |
614 | if (NetRestartWrap) { | |
2d966958 | 615 | NetRestartWrap = 0; |
6e592385 | 616 | if (NetDevExists && !once) { |
079c2c4f | 617 | NetSetTimeout (10UL * CFG_HZ, startAgainTimeout); |
6e592385 WD |
618 | NetSetHandler (startAgainHandler); |
619 | } else { | |
2d966958 WD |
620 | NetState = NETLOOP_FAIL; |
621 | } | |
6e592385 | 622 | } else { |
2d966958 WD |
623 | NetState = NETLOOP_RESTART; |
624 | } | |
6e592385 | 625 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
626 | } |
627 | ||
628 | /**********************************************************************/ | |
629 | /* | |
630 | * Miscelaneous bits. | |
631 | */ | |
632 | ||
633 | void | |
634 | NetSetHandler(rxhand_f * f) | |
635 | { | |
636 | packetHandler = f; | |
637 | } | |
638 | ||
639 | ||
640 | void | |
3e01d75f | 641 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
642 | { |
643 | if (iv == 0) { | |
644 | timeHandler = (thand_f *)0; | |
645 | } else { | |
646 | timeHandler = f; | |
e0ac62d7 WD |
647 | timeStart = get_timer(0); |
648 | timeDelta = iv; | |
2d966958 WD |
649 | } |
650 | } | |
651 | ||
652 | ||
653 | void | |
654 | NetSendPacket(volatile uchar * pkt, int len) | |
655 | { | |
656 | (void) eth_send(pkt, len); | |
657 | } | |
658 | ||
73a8b27c WD |
659 | int |
660 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
661 | { | |
a3d991bd WD |
662 | uchar *pkt; |
663 | ||
73a8b27c WD |
664 | /* convert to new style broadcast */ |
665 | if (dest == 0) | |
666 | dest = 0xFFFFFFFF; | |
667 | ||
668 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
669 | if (dest == 0xFFFFFFFF) | |
670 | ether = NetBcastAddr; | |
671 | ||
672 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
673 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
674 | ||
675 | #ifdef ET_DEBUG | |
676 | printf("sending ARP for %08lx\n", dest); | |
677 | #endif | |
73a8b27c WD |
678 | NetArpWaitPacketIP = dest; |
679 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
680 | |
681 | pkt = NetArpWaitTxPacket; | |
682 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
683 | ||
684 | NetSetIP (pkt, dest, dport, sport, len); | |
685 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
686 | |
687 | /* size of the waiting packet */ | |
a3d991bd | 688 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
689 | |
690 | /* and do the ARP request */ | |
691 | NetArpWaitTry = 1; | |
692 | NetArpWaitTimerStart = get_timer(0); | |
693 | ArpRequest(); | |
694 | return 1; /* waiting */ | |
695 | } | |
696 | ||
697 | #ifdef ET_DEBUG | |
698 | printf("sending UDP to %08lx/%02x:%02x:%02x:%02x:%02x:%02x\n", | |
6e592385 | 699 | dest, ether[0], ether[1], ether[2], ether[3], ether[4], ether[5]); |
73a8b27c WD |
700 | #endif |
701 | ||
a3d991bd WD |
702 | pkt = (uchar *)NetTxPacket; |
703 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
704 | NetSetIP (pkt, dest, dport, sport, len); | |
705 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 706 | |
6e592385 | 707 | return 0; /* transmitted */ |
73a8b27c WD |
708 | } |
709 | ||
643d1ab2 | 710 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
711 | static ushort PingSeqNo; |
712 | ||
713 | int PingSend(void) | |
714 | { | |
715 | static uchar mac[6]; | |
716 | volatile IP_t *ip; | |
717 | volatile ushort *s; | |
a3d991bd | 718 | uchar *pkt; |
73a8b27c WD |
719 | |
720 | /* XXX always send arp request */ | |
721 | ||
722 | memcpy(mac, NetEtherNullAddr, 6); | |
723 | ||
724 | #ifdef ET_DEBUG | |
725 | printf("sending ARP for %08lx\n", NetPingIP); | |
726 | #endif | |
727 | ||
728 | NetArpWaitPacketIP = NetPingIP; | |
729 | NetArpWaitPacketMAC = mac; | |
730 | ||
a3d991bd WD |
731 | pkt = NetArpWaitTxPacket; |
732 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 733 | |
a3d991bd | 734 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
735 | |
736 | /* | |
737 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
738 | */ | |
739 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
740 | ip->ip_tos = 0; | |
741 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
742 | ip->ip_id = htons(NetIPID++); | |
743 | ip->ip_off = htons(0x4000); /* No fragmentation */ | |
744 | ip->ip_ttl = 255; | |
745 | ip->ip_p = 0x01; /* ICMP */ | |
746 | ip->ip_sum = 0; | |
747 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
748 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
749 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
750 | ||
751 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
752 | s[0] = htons(0x0800); /* echo-request, code */ | |
753 | s[1] = 0; /* checksum */ | |
53677ef1 | 754 | s[2] = 0; /* identifier */ |
73a8b27c WD |
755 | s[3] = htons(PingSeqNo++); /* sequence number */ |
756 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
757 | ||
758 | /* size of the waiting packet */ | |
a3d991bd | 759 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
760 | |
761 | /* and do the ARP request */ | |
762 | NetArpWaitTry = 1; | |
763 | NetArpWaitTimerStart = get_timer(0); | |
764 | ArpRequest(); | |
765 | return 1; /* waiting */ | |
766 | } | |
767 | ||
768 | static void | |
769 | PingTimeout (void) | |
770 | { | |
771 | eth_halt(); | |
772 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
773 | } | |
2d966958 | 774 | |
73a8b27c WD |
775 | static void |
776 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
777 | { | |
778 | IPaddr_t tmp; | |
779 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
780 | ||
781 | tmp = NetReadIP((void *)&ip->ip_src); | |
782 | if (tmp != NetPingIP) | |
783 | return; | |
784 | ||
785 | NetState = NETLOOP_SUCCESS; | |
786 | } | |
787 | ||
788 | static void PingStart(void) | |
789 | { | |
a3d991bd WD |
790 | #if defined(CONFIG_NET_MULTI) |
791 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 792 | #endif /* CONFIG_NET_MULTI */ |
079c2c4f | 793 | NetSetTimeout (10UL * CFG_HZ, PingTimeout); |
73a8b27c WD |
794 | NetSetHandler (PingHandler); |
795 | ||
796 | PingSend(); | |
797 | } | |
610f2e9c | 798 | #endif |
2d966958 | 799 | |
643d1ab2 | 800 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
801 | |
802 | #define CDP_DEVICE_ID_TLV 0x0001 | |
803 | #define CDP_ADDRESS_TLV 0x0002 | |
804 | #define CDP_PORT_ID_TLV 0x0003 | |
805 | #define CDP_CAPABILITIES_TLV 0x0004 | |
806 | #define CDP_VERSION_TLV 0x0005 | |
807 | #define CDP_PLATFORM_TLV 0x0006 | |
808 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
809 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
810 | #define CDP_TRIGGER_TLV 0x000f | |
811 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
812 | #define CDP_SYSNAME_TLV 0x0014 | |
813 | #define CDP_SYSOBJECT_TLV 0x0015 | |
814 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
815 | ||
816 | #define CDP_TIMEOUT (CFG_HZ/4) /* one packet every 250ms */ | |
817 | ||
818 | static int CDPSeq; | |
819 | static int CDPOK; | |
820 | ||
821 | ushort CDPNativeVLAN; | |
822 | ushort CDPApplianceVLAN; | |
823 | ||
824 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
825 | ||
826 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
827 | { | |
828 | ushort csum; | |
829 | int odd; | |
830 | ulong result = 0; | |
831 | ushort leftover; | |
77ddac94 | 832 | ushort *p; |
a3d991bd WD |
833 | |
834 | if (len > 0) { | |
835 | odd = 1 & (ulong)buff; | |
836 | if (odd) { | |
837 | result = *buff << 8; | |
838 | len--; | |
839 | buff++; | |
840 | } | |
841 | while (len > 1) { | |
77ddac94 WD |
842 | p = (ushort *)buff; |
843 | result += *p++; | |
844 | buff = (uchar *)p; | |
a3d991bd WD |
845 | if (result & 0x80000000) |
846 | result = (result & 0xFFFF) + (result >> 16); | |
847 | len -= 2; | |
848 | } | |
849 | if (len) { | |
850 | leftover = (signed short)(*(const signed char *)buff); | |
3ada834e WD |
851 | /* CISCO SUCKS big time! (and blows too): |
852 | * CDP uses the IP checksum algorithm with a twist; | |
853 | * for the last byte it *sign* extends and sums. | |
854 | */ | |
a3d991bd WD |
855 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); |
856 | } | |
857 | while (result >> 16) | |
858 | result = (result & 0xFFFF) + (result >> 16); | |
859 | ||
860 | if (odd) | |
861 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
862 | } | |
863 | ||
864 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
865 | result = (result & 0xffff) + (result >> 16); | |
866 | /* add up 16-bit and 2-bit for 16+c bit */ | |
867 | result = (result & 0xffff) + (result >> 16); | |
868 | /* add up carry.. */ | |
869 | result = (result & 0xffff) + (result >> 16); | |
870 | ||
871 | /* negate */ | |
872 | csum = ~(ushort)result; | |
873 | ||
874 | /* run time endian detection */ | |
875 | if (csum != htons(csum)) /* little endian */ | |
876 | csum = htons(csum); | |
877 | ||
878 | return csum; | |
879 | } | |
880 | ||
881 | int CDPSendTrigger(void) | |
882 | { | |
883 | volatile uchar *pkt; | |
884 | volatile ushort *s; | |
885 | volatile ushort *cp; | |
886 | Ethernet_t *et; | |
a3d991bd WD |
887 | int len; |
888 | ushort chksum; | |
6e592385 WD |
889 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
890 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
891 | char buf[32]; | |
892 | #endif | |
a3d991bd WD |
893 | |
894 | pkt = NetTxPacket; | |
895 | et = (Ethernet_t *)pkt; | |
896 | ||
897 | /* NOTE: trigger sent not on any VLAN */ | |
898 | ||
899 | /* form ethernet header */ | |
900 | memcpy(et->et_dest, NetCDPAddr, 6); | |
901 | memcpy(et->et_src, NetOurEther, 6); | |
902 | ||
903 | pkt += ETHER_HDR_SIZE; | |
904 | ||
905 | /* SNAP header */ | |
906 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
907 | pkt += sizeof(CDP_SNAP_hdr); | |
908 | ||
909 | /* CDP header */ | |
910 | *pkt++ = 0x02; /* CDP version 2 */ | |
911 | *pkt++ = 180; /* TTL */ | |
912 | s = (volatile ushort *)pkt; | |
913 | cp = s; | |
914 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
915 | ||
916 | /* CDP fields */ | |
917 | #ifdef CONFIG_CDP_DEVICE_ID | |
918 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
919 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
920 | memset(buf, 0, sizeof(buf)); | |
921 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%02X%02X%02X%02X%02X%02X", | |
922 | NetOurEther[0] & 0xff, NetOurEther[1] & 0xff, | |
923 | NetOurEther[2] & 0xff, NetOurEther[3] & 0xff, | |
924 | NetOurEther[4] & 0xff, NetOurEther[5] & 0xff); | |
925 | memcpy((uchar *)s, buf, 16); | |
926 | s += 16 / 2; | |
927 | #endif | |
928 | ||
929 | #ifdef CONFIG_CDP_PORT_ID | |
930 | *s++ = htons(CDP_PORT_ID_TLV); | |
931 | memset(buf, 0, sizeof(buf)); | |
932 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
933 | len = strlen(buf); | |
934 | if (len & 1) /* make it even */ | |
935 | len++; | |
936 | *s++ = htons(len + 4); | |
937 | memcpy((uchar *)s, buf, len); | |
938 | s += len / 2; | |
939 | #endif | |
940 | ||
941 | #ifdef CONFIG_CDP_CAPABILITIES | |
942 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
943 | *s++ = htons(8); | |
944 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
945 | s += 2; | |
946 | #endif | |
947 | ||
948 | #ifdef CONFIG_CDP_VERSION | |
949 | *s++ = htons(CDP_VERSION_TLV); | |
950 | memset(buf, 0, sizeof(buf)); | |
951 | strcpy(buf, CONFIG_CDP_VERSION); | |
952 | len = strlen(buf); | |
953 | if (len & 1) /* make it even */ | |
954 | len++; | |
955 | *s++ = htons(len + 4); | |
956 | memcpy((uchar *)s, buf, len); | |
957 | s += len / 2; | |
958 | #endif | |
959 | ||
960 | #ifdef CONFIG_CDP_PLATFORM | |
961 | *s++ = htons(CDP_PLATFORM_TLV); | |
962 | memset(buf, 0, sizeof(buf)); | |
963 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
964 | len = strlen(buf); | |
965 | if (len & 1) /* make it even */ | |
966 | len++; | |
967 | *s++ = htons(len + 4); | |
968 | memcpy((uchar *)s, buf, len); | |
969 | s += len / 2; | |
970 | #endif | |
971 | ||
972 | #ifdef CONFIG_CDP_TRIGGER | |
973 | *s++ = htons(CDP_TRIGGER_TLV); | |
974 | *s++ = htons(8); | |
975 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
976 | s += 2; | |
977 | #endif | |
978 | ||
979 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
980 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
981 | *s++ = htons(6); | |
982 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
983 | #endif | |
984 | ||
985 | /* length of ethernet packet */ | |
986 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
987 | et->et_protlen = htons(len); | |
988 | ||
989 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
990 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
991 | if (chksum == 0) | |
992 | chksum = 0xFFFF; | |
993 | *cp = htons(chksum); | |
994 | ||
995 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
996 | return 0; | |
997 | } | |
998 | ||
999 | static void | |
1000 | CDPTimeout (void) | |
1001 | { | |
1002 | CDPSeq++; | |
1003 | ||
1004 | if (CDPSeq < 3) { | |
1005 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1006 | CDPSendTrigger(); | |
1007 | return; | |
1008 | } | |
1009 | ||
1010 | /* if not OK try again */ | |
1011 | if (!CDPOK) | |
1012 | NetStartAgain(); | |
1013 | else | |
1014 | NetState = NETLOOP_SUCCESS; | |
1015 | } | |
1016 | ||
1017 | static void | |
1018 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
1019 | { | |
1020 | /* nothing */ | |
1021 | } | |
1022 | ||
1023 | static void | |
1024 | CDPHandler(const uchar * pkt, unsigned len) | |
1025 | { | |
1026 | const uchar *t; | |
1027 | const ushort *ss; | |
1028 | ushort type, tlen; | |
1029 | uchar applid; | |
1030 | ushort vlan, nvlan; | |
1031 | ||
1032 | /* minimum size? */ | |
1033 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
1034 | goto pkt_short; | |
1035 | ||
1036 | /* check for valid CDP SNAP header */ | |
1037 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
1038 | return; | |
1039 | ||
1040 | pkt += sizeof(CDP_SNAP_hdr); | |
1041 | len -= sizeof(CDP_SNAP_hdr); | |
1042 | ||
1043 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
1044 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
1045 | return; | |
1046 | ||
1047 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
1048 | if (pkt[0] != 0x02) | |
1049 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
1050 | pkt[0] & 0xff); | |
1051 | ||
1052 | if (CDP_compute_csum(pkt, len) != 0) | |
1053 | return; | |
1054 | ||
1055 | pkt += 4; | |
1056 | len -= 4; | |
1057 | ||
1058 | vlan = htons(-1); | |
1059 | nvlan = htons(-1); | |
1060 | while (len > 0) { | |
1061 | if (len < 4) | |
1062 | goto pkt_short; | |
1063 | ||
1064 | ss = (const ushort *)pkt; | |
1065 | type = ntohs(ss[0]); | |
1066 | tlen = ntohs(ss[1]); | |
1067 | if (tlen > len) { | |
1068 | goto pkt_short; | |
1069 | } | |
1070 | ||
1071 | pkt += tlen; | |
1072 | len -= tlen; | |
1073 | ||
1074 | ss += 2; /* point ss to the data of the TLV */ | |
1075 | tlen -= 4; | |
1076 | ||
1077 | switch (type) { | |
1078 | case CDP_DEVICE_ID_TLV: | |
1079 | break; | |
1080 | case CDP_ADDRESS_TLV: | |
1081 | break; | |
1082 | case CDP_PORT_ID_TLV: | |
1083 | break; | |
1084 | case CDP_CAPABILITIES_TLV: | |
1085 | break; | |
1086 | case CDP_VERSION_TLV: | |
1087 | break; | |
1088 | case CDP_PLATFORM_TLV: | |
1089 | break; | |
1090 | case CDP_NATIVE_VLAN_TLV: | |
1091 | nvlan = *ss; | |
1092 | break; | |
1093 | case CDP_APPLIANCE_VLAN_TLV: | |
1094 | t = (const uchar *)ss; | |
1095 | while (tlen > 0) { | |
1096 | if (tlen < 3) | |
1097 | goto pkt_short; | |
1098 | ||
1099 | applid = t[0]; | |
1100 | ss = (const ushort *)(t + 1); | |
1101 | ||
1102 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1103 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1104 | vlan = *ss; | |
1105 | #else | |
1106 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1107 | #endif | |
1108 | t += 3; tlen -= 3; | |
1109 | } | |
1110 | break; | |
1111 | case CDP_TRIGGER_TLV: | |
1112 | break; | |
1113 | case CDP_POWER_CONSUMPTION_TLV: | |
1114 | break; | |
1115 | case CDP_SYSNAME_TLV: | |
1116 | break; | |
1117 | case CDP_SYSOBJECT_TLV: | |
1118 | break; | |
1119 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1120 | break; | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | CDPApplianceVLAN = vlan; | |
1125 | CDPNativeVLAN = nvlan; | |
1126 | ||
1127 | CDPOK = 1; | |
1128 | return; | |
1129 | ||
1130 | pkt_short: | |
1131 | printf("** CDP packet is too short\n"); | |
1132 | return; | |
1133 | } | |
1134 | ||
1135 | static void CDPStart(void) | |
1136 | { | |
1137 | #if defined(CONFIG_NET_MULTI) | |
1138 | printf ("Using %s device\n", eth_get_name()); | |
1139 | #endif | |
1140 | CDPSeq = 0; | |
1141 | CDPOK = 0; | |
1142 | ||
1143 | CDPNativeVLAN = htons(-1); | |
1144 | CDPApplianceVLAN = htons(-1); | |
1145 | ||
1146 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1147 | NetSetHandler (CDPDummyHandler); | |
1148 | ||
1149 | CDPSendTrigger(); | |
1150 | } | |
610f2e9c | 1151 | #endif |
a3d991bd WD |
1152 | |
1153 | ||
2d966958 | 1154 | void |
a3d991bd | 1155 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1156 | { |
1157 | Ethernet_t *et; | |
1158 | IP_t *ip; | |
1159 | ARP_t *arp; | |
1160 | IPaddr_t tmp; | |
1161 | int x; | |
a3d991bd | 1162 | uchar *pkt; |
643d1ab2 | 1163 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1164 | int iscdp; |
1165 | #endif | |
1166 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1167 | ||
1168 | #ifdef ET_DEBUG | |
1169 | printf("packet received\n"); | |
1170 | #endif | |
2d966958 | 1171 | |
a3d991bd | 1172 | NetRxPkt = inpkt; |
2d966958 | 1173 | NetRxPktLen = len; |
a3d991bd WD |
1174 | et = (Ethernet_t *)inpkt; |
1175 | ||
1176 | /* too small packet? */ | |
1177 | if (len < ETHER_HDR_SIZE) | |
1178 | return; | |
1179 | ||
f85b6071 RJ |
1180 | #ifdef CONFIG_API |
1181 | if (push_packet) { | |
1182 | (*push_packet)(inpkt, len); | |
1183 | return; | |
1184 | } | |
1185 | #endif | |
1186 | ||
643d1ab2 | 1187 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1188 | /* keep track if packet is CDP */ |
1189 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1190 | #endif | |
1191 | ||
1192 | myvlanid = ntohs(NetOurVLAN); | |
1193 | if (myvlanid == (ushort)-1) | |
1194 | myvlanid = VLAN_NONE; | |
1195 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1196 | if (mynvlanid == (ushort)-1) | |
1197 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1198 | |
1199 | x = ntohs(et->et_protlen); | |
1200 | ||
a3d991bd WD |
1201 | #ifdef ET_DEBUG |
1202 | printf("packet received\n"); | |
1203 | #endif | |
1204 | ||
2d966958 WD |
1205 | if (x < 1514) { |
1206 | /* | |
1207 | * Got a 802 packet. Check the other protocol field. | |
1208 | */ | |
1209 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1210 | |
1211 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1212 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1213 | |
1214 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1215 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1216 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1217 | |
1218 | } else { /* VLAN packet */ | |
1219 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1220 | ||
1221 | #ifdef ET_DEBUG | |
1222 | printf("VLAN packet received\n"); | |
1223 | #endif | |
1224 | /* too small packet? */ | |
1225 | if (len < VLAN_ETHER_HDR_SIZE) | |
1226 | return; | |
1227 | ||
1228 | /* if no VLAN active */ | |
1229 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
643d1ab2 | 1230 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1231 | && iscdp == 0 |
1232 | #endif | |
1233 | ) | |
1234 | return; | |
1235 | ||
1236 | cti = ntohs(vet->vet_tag); | |
1237 | vlanid = cti & VLAN_IDMASK; | |
1238 | x = ntohs(vet->vet_type); | |
1239 | ||
1240 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1241 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1242 | } |
1243 | ||
1244 | #ifdef ET_DEBUG | |
1245 | printf("Receive from protocol 0x%x\n", x); | |
1246 | #endif | |
1247 | ||
643d1ab2 | 1248 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1249 | if (iscdp) { |
1250 | CDPHandler((uchar *)ip, len); | |
1251 | return; | |
1252 | } | |
1253 | #endif | |
1254 | ||
1255 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1256 | if (vlanid == VLAN_NONE) | |
1257 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1258 | /* not matched? */ | |
1259 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1260 | return; | |
1261 | } | |
1262 | ||
2d966958 WD |
1263 | switch (x) { |
1264 | ||
1265 | case PROT_ARP: | |
1266 | /* | |
1267 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1268 | * - REQUEST packets will be answered by sending our |
1269 | * IP address - if we know it. | |
1270 | * - REPLY packates are expected only after we asked | |
1271 | * for the TFTP server's or the gateway's ethernet | |
1272 | * address; so if we receive such a packet, we set | |
1273 | * the server ethernet address | |
2d966958 WD |
1274 | */ |
1275 | #ifdef ET_DEBUG | |
4b9206ed | 1276 | puts ("Got ARP\n"); |
2d966958 WD |
1277 | #endif |
1278 | arp = (ARP_t *)ip; | |
1279 | if (len < ARP_HDR_SIZE) { | |
1280 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1281 | return; | |
1282 | } | |
1283 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1284 | return; | |
1285 | } | |
1286 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1287 | return; | |
1288 | } | |
1289 | if (arp->ar_hln != 6) { | |
1290 | return; | |
1291 | } | |
1292 | if (arp->ar_pln != 4) { | |
1293 | return; | |
1294 | } | |
1295 | ||
1296 | if (NetOurIP == 0) { | |
1297 | return; | |
1298 | } | |
1299 | ||
1300 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1301 | return; | |
1302 | } | |
1303 | ||
1304 | switch (ntohs(arp->ar_op)) { | |
1305 | case ARPOP_REQUEST: /* reply with our IP address */ | |
1306 | #ifdef ET_DEBUG | |
4b9206ed | 1307 | puts ("Got ARP REQUEST, return our IP\n"); |
2d966958 | 1308 | #endif |
a3d991bd WD |
1309 | pkt = (uchar *)et; |
1310 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1311 | arp->ar_op = htons(ARPOP_REPLY); |
1312 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1313 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1314 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1315 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1316 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1317 | return; |
73a8b27c WD |
1318 | |
1319 | case ARPOP_REPLY: /* arp reply */ | |
1320 | /* are we waiting for a reply */ | |
1321 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1322 | break; | |
2d966958 | 1323 | #ifdef ET_DEBUG |
73a8b27c WD |
1324 | printf("Got ARP REPLY, set server/gtwy eth addr (%02x:%02x:%02x:%02x:%02x:%02x)\n", |
1325 | arp->ar_data[0], arp->ar_data[1], | |
1326 | arp->ar_data[2], arp->ar_data[3], | |
1327 | arp->ar_data[4], arp->ar_data[5]); | |
2d966958 | 1328 | #endif |
73a8b27c WD |
1329 | |
1330 | tmp = NetReadIP(&arp->ar_data[6]); | |
1331 | ||
1332 | /* matched waiting packet's address */ | |
1333 | if (tmp == NetArpWaitReplyIP) { | |
1334 | #ifdef ET_DEBUG | |
4b9206ed | 1335 | puts ("Got it\n"); |
73a8b27c WD |
1336 | #endif |
1337 | /* save address for later use */ | |
1338 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1339 | ||
68ceb29e WD |
1340 | #ifdef CONFIG_NETCONSOLE |
1341 | (*packetHandler)(0,0,0,0); | |
1342 | #endif | |
73a8b27c WD |
1343 | /* modify header, and transmit it */ |
1344 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1345 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1346 | ||
1347 | /* no arp request pending now */ | |
1348 | NetArpWaitPacketIP = 0; | |
1349 | NetArpWaitTxPacketSize = 0; | |
1350 | NetArpWaitPacketMAC = NULL; | |
1351 | ||
1352 | } | |
2d966958 WD |
1353 | return; |
1354 | default: | |
1355 | #ifdef ET_DEBUG | |
1356 | printf("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); | |
1357 | #endif | |
1358 | return; | |
1359 | } | |
289f932c | 1360 | break; |
2d966958 WD |
1361 | |
1362 | case PROT_RARP: | |
1363 | #ifdef ET_DEBUG | |
4b9206ed | 1364 | puts ("Got RARP\n"); |
2d966958 WD |
1365 | #endif |
1366 | arp = (ARP_t *)ip; | |
1367 | if (len < ARP_HDR_SIZE) { | |
1368 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1369 | return; | |
1370 | } | |
1371 | ||
1372 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1373 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1374 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1375 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1376 | ||
4b9206ed | 1377 | puts ("invalid RARP header\n"); |
2d966958 WD |
1378 | } else { |
1379 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1380 | if (NetServerIP == 0) |
1381 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1382 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1383 | ||
1384 | (*packetHandler)(0,0,0,0); | |
1385 | } | |
1386 | break; | |
1387 | ||
1388 | case PROT_IP: | |
1389 | #ifdef ET_DEBUG | |
4b9206ed | 1390 | puts ("Got IP\n"); |
2d966958 WD |
1391 | #endif |
1392 | if (len < IP_HDR_SIZE) { | |
1393 | debug ("len bad %d < %d\n", len, IP_HDR_SIZE); | |
1394 | return; | |
1395 | } | |
1396 | if (len < ntohs(ip->ip_len)) { | |
1397 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1398 | return; | |
1399 | } | |
1400 | len = ntohs(ip->ip_len); | |
1401 | #ifdef ET_DEBUG | |
1402 | printf("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); | |
1403 | #endif | |
1404 | if ((ip->ip_hl_v & 0xf0) != 0x40) { | |
1405 | return; | |
1406 | } | |
1407 | if (ip->ip_off & htons(0x1fff)) { /* Can't deal w/ fragments */ | |
1408 | return; | |
1409 | } | |
1410 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { | |
4b9206ed | 1411 | puts ("checksum bad\n"); |
2d966958 WD |
1412 | return; |
1413 | } | |
1414 | tmp = NetReadIP(&ip->ip_dst); | |
1415 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
53a5c424 | 1416 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 1417 | if (Mcast_addr != tmp) |
53a5c424 | 1418 | #endif |
2d966958 WD |
1419 | return; |
1420 | } | |
1421 | /* | |
1422 | * watch for ICMP host redirects | |
1423 | * | |
8bde7f77 WD |
1424 | * There is no real handler code (yet). We just watch |
1425 | * for ICMP host redirect messages. In case anybody | |
1426 | * sees these messages: please contact me | |
1427 | * (wd@denx.de), or - even better - send me the | |
1428 | * necessary fixes :-) | |
2d966958 | 1429 | * |
8bde7f77 WD |
1430 | * Note: in all cases where I have seen this so far |
1431 | * it was a problem with the router configuration, | |
1432 | * for instance when a router was configured in the | |
1433 | * BOOTP reply, but the TFTP server was on the same | |
1434 | * subnet. So this is probably a warning that your | |
1435 | * configuration might be wrong. But I'm not really | |
1436 | * sure if there aren't any other situations. | |
2d966958 WD |
1437 | */ |
1438 | if (ip->ip_p == IPPROTO_ICMP) { | |
1439 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1440 | ||
73a8b27c WD |
1441 | switch (icmph->type) { |
1442 | case ICMP_REDIRECT: | |
90dc6704 WD |
1443 | if (icmph->code != ICMP_REDIR_HOST) |
1444 | return; | |
1445 | puts (" ICMP Host Redirect to "); | |
1446 | print_IPaddr(icmph->un.gateway); | |
1447 | putc(' '); | |
8534bf9a | 1448 | return; |
643d1ab2 | 1449 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
1450 | case ICMP_ECHO_REPLY: |
1451 | /* | |
1452 | * IP header OK. Pass the packet to the current handler. | |
1453 | */ | |
1454 | /* XXX point to ip packet */ | |
1455 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
8534bf9a | 1456 | return; |
83853178 ES |
1457 | case ICMP_ECHO_REQUEST: |
1458 | #ifdef ET_DEBUG | |
1459 | printf ("Got ICMP ECHO REQUEST, return %d bytes \n", | |
1460 | ETHER_HDR_SIZE + len); | |
1461 | #endif | |
1462 | memcpy (&et->et_dest[0], &et->et_src[0], 6); | |
1463 | memcpy (&et->et_src[ 0], NetOurEther, 6); | |
1464 | ||
1465 | ip->ip_sum = 0; | |
1466 | ip->ip_off = 0; | |
1467 | NetCopyIP((void*)&ip->ip_dst, &ip->ip_src); | |
1468 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); | |
1469 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1); | |
1470 | ||
1471 | icmph->type = ICMP_ECHO_REPLY; | |
1472 | icmph->checksum = 0; | |
1473 | icmph->checksum = ~NetCksum((uchar *)icmph, | |
1474 | (len - IP_HDR_SIZE_NO_UDP) >> 1); | |
1475 | (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len); | |
1476 | return; | |
73a8b27c WD |
1477 | #endif |
1478 | default: | |
1479 | return; | |
1480 | } | |
2d966958 WD |
1481 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1482 | return; | |
1483 | } | |
1484 | ||
8534bf9a SR |
1485 | #ifdef CONFIG_UDP_CHECKSUM |
1486 | if (ip->udp_xsum != 0) { | |
b2f50807 | 1487 | ulong xsum; |
8534bf9a SR |
1488 | ushort *sumptr; |
1489 | ushort sumlen; | |
1490 | ||
1491 | xsum = ip->ip_p; | |
1492 | xsum += (ntohs(ip->udp_len)); | |
1493 | xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; | |
1494 | xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; | |
1495 | xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; | |
1496 | xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; | |
1497 | ||
1498 | sumlen = ntohs(ip->udp_len); | |
1499 | sumptr = (ushort *) &(ip->udp_src); | |
1500 | ||
1501 | while (sumlen > 1) { | |
b2f50807 | 1502 | ushort sumdata; |
8534bf9a SR |
1503 | |
1504 | sumdata = *sumptr++; | |
1505 | xsum += ntohs(sumdata); | |
1506 | sumlen -= 2; | |
1507 | } | |
1508 | if (sumlen > 0) { | |
b2f50807 | 1509 | ushort sumdata; |
8534bf9a SR |
1510 | |
1511 | sumdata = *(unsigned char *) sumptr; | |
b2f50807 | 1512 | sumdata = (sumdata << 8) & 0xff00; |
8534bf9a SR |
1513 | xsum += sumdata; |
1514 | } | |
1515 | while ((xsum >> 16) != 0) { | |
b2f50807 | 1516 | xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); |
8534bf9a SR |
1517 | } |
1518 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { | |
b2f50807 | 1519 | printf(" UDP wrong checksum %08x %08x\n", 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 | } |