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2d966958 WD |
1 | /* |
2 | * Copied from Linux Monitor (LiMon) - Networking. | |
3 | * | |
4 | * Copyright 1994 - 2000 Neil Russell. | |
5 | * (See License) | |
6 | * Copyright 2000 Roland Borde | |
7 | * Copyright 2000 Paolo Scaffardi | |
8 | * Copyright 2000-2002 Wolfgang Denk, wd@denx.de | |
9 | */ | |
10 | ||
11 | /* | |
12 | * General Desription: | |
13 | * | |
14 | * The user interface supports commands for BOOTP, RARP, and TFTP. | |
15 | * Also, we support ARP internally. Depending on available data, | |
16 | * these interact as follows: | |
17 | * | |
18 | * BOOTP: | |
19 | * | |
20 | * Prerequisites: - own ethernet address | |
21 | * We want: - own IP address | |
22 | * - TFTP server IP address | |
23 | * - name of bootfile | |
24 | * Next step: ARP | |
25 | * | |
26 | * RARP: | |
27 | * | |
28 | * Prerequisites: - own ethernet address | |
29 | * We want: - own IP address | |
30 | * - TFTP server IP address | |
31 | * Next step: ARP | |
32 | * | |
33 | * ARP: | |
34 | * | |
35 | * Prerequisites: - own ethernet address | |
36 | * - own IP address | |
37 | * - TFTP server IP address | |
38 | * We want: - TFTP server ethernet address | |
39 | * Next step: TFTP | |
40 | * | |
41 | * DHCP: | |
42 | * | |
b2f50807 WD |
43 | * Prerequisites: - own ethernet address |
44 | * We want: - IP, Netmask, ServerIP, Gateway IP | |
45 | * - bootfilename, lease time | |
46 | * Next step: - TFTP | |
2d966958 WD |
47 | * |
48 | * TFTP: | |
49 | * | |
50 | * Prerequisites: - own ethernet address | |
51 | * - own IP address | |
52 | * - TFTP server IP address | |
53 | * - TFTP server ethernet address | |
54 | * - name of bootfile (if unknown, we use a default name | |
55 | * derived from our own IP address) | |
56 | * We want: - load the boot file | |
57 | * Next step: none | |
cbd8a35c WD |
58 | * |
59 | * NFS: | |
60 | * | |
61 | * Prerequisites: - own ethernet address | |
62 | * - own IP address | |
63 | * - name of bootfile (if unknown, we use a default name | |
64 | * derived from our own IP address) | |
65 | * We want: - load the boot file | |
66 | * Next step: none | |
ea287deb WD |
67 | * |
68 | * SNTP: | |
69 | * | |
b2f50807 | 70 | * Prerequisites: - own ethernet address |
ea287deb WD |
71 | * - own IP address |
72 | * We want: - network time | |
73 | * Next step: none | |
2d966958 WD |
74 | */ |
75 | ||
76 | ||
77 | #include <common.h> | |
78 | #include <watchdog.h> | |
79 | #include <command.h> | |
80 | #include <net.h> | |
81 | #include "bootp.h" | |
82 | #include "tftp.h" | |
83 | #include "rarp.h" | |
cbd8a35c | 84 | #include "nfs.h" |
fc3e2165 WD |
85 | #ifdef CONFIG_STATUS_LED |
86 | #include <status_led.h> | |
87 | #include <miiphy.h> | |
88 | #endif | |
643d1ab2 | 89 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
90 | #include "sntp.h" |
91 | #endif | |
561858ee PT |
92 | #if defined(CONFIG_CDP_VERSION) |
93 | #include <timestamp.h> | |
94 | #endif | |
1a32bf41 RG |
95 | #if defined(CONFIG_CMD_DNS) |
96 | #include "dns.h" | |
97 | #endif | |
2d966958 | 98 | |
643d1ab2 | 99 | #if defined(CONFIG_CMD_NET) |
2d966958 | 100 | |
d87080b7 WD |
101 | DECLARE_GLOBAL_DATA_PTR; |
102 | ||
40cb90ee | 103 | #ifndef CONFIG_ARP_TIMEOUT |
49f3bdbb | 104 | # define ARP_TIMEOUT 5000UL /* Milliseconds before trying ARP again */ |
40cb90ee | 105 | #else |
49f3bdbb | 106 | # define ARP_TIMEOUT CONFIG_ARP_TIMEOUT |
40cb90ee GL |
107 | #endif |
108 | ||
109 | ||
73a8b27c | 110 | #ifndef CONFIG_NET_RETRY_COUNT |
40cb90ee | 111 | # define ARP_TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
73a8b27c | 112 | #else |
40cb90ee | 113 | # define ARP_TIMEOUT_COUNT CONFIG_NET_RETRY_COUNT |
73a8b27c WD |
114 | #endif |
115 | ||
2d966958 WD |
116 | /** BOOTP EXTENTIONS **/ |
117 | ||
118 | IPaddr_t NetOurSubnetMask=0; /* Our subnet mask (0=unknown) */ | |
119 | IPaddr_t NetOurGatewayIP=0; /* Our gateways IP address */ | |
120 | IPaddr_t NetOurDNSIP=0; /* Our DNS IP address */ | |
1fe80d79 | 121 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 SR |
122 | IPaddr_t NetOurDNS2IP=0; /* Our 2nd DNS IP address */ |
123 | #endif | |
2d966958 WD |
124 | char NetOurNISDomain[32]={0,}; /* Our NIS domain */ |
125 | char NetOurHostName[32]={0,}; /* Our hostname */ | |
126 | char NetOurRootPath[64]={0,}; /* Our bootpath */ | |
127 | ushort NetBootFileSize=0; /* Our bootfile size in blocks */ | |
128 | ||
53a5c424 DU |
129 | #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ |
130 | IPaddr_t Mcast_addr; | |
131 | #endif | |
132 | ||
2d966958 WD |
133 | /** END OF BOOTP EXTENTIONS **/ |
134 | ||
135 | ulong NetBootFileXferSize; /* The actual transferred size of the bootfile (in bytes) */ | |
136 | uchar NetOurEther[6]; /* Our ethernet address */ | |
137 | uchar NetServerEther[6] = /* Boot server enet address */ | |
73a8b27c | 138 | { 0, 0, 0, 0, 0, 0 }; |
2d966958 | 139 | IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
40cb90ee | 140 | IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
d9bec9f4 MF |
141 | volatile uchar *NetRxPacket; /* Current receive packet */ |
142 | int NetRxPacketLen; /* Current rx packet length */ | |
2d966958 WD |
143 | unsigned NetIPID; /* IP packet ID */ |
144 | uchar NetBcastAddr[6] = /* Ethernet bcast address */ | |
145 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
73a8b27c WD |
146 | uchar NetEtherNullAddr[6] = |
147 | { 0, 0, 0, 0, 0, 0 }; | |
f85b6071 RJ |
148 | #ifdef CONFIG_API |
149 | void (*push_packet)(volatile void *, int len) = 0; | |
150 | #endif | |
643d1ab2 | 151 | #if defined(CONFIG_CMD_CDP) |
6e592385 | 152 | uchar NetCDPAddr[6] = /* Ethernet bcast address */ |
a3d991bd WD |
153 | { 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc }; |
154 | #endif | |
2d966958 WD |
155 | int NetState; /* Network loop state */ |
156 | #ifdef CONFIG_NET_MULTI | |
157 | int NetRestartWrap = 0; /* Tried all network devices */ | |
158 | static int NetRestarted = 0; /* Network loop restarted */ | |
159 | static int NetDevExists = 0; /* At least one device configured */ | |
160 | #endif | |
161 | ||
6e592385 WD |
162 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
163 | ushort NetOurVLAN = 0xFFFF; /* default is without VLAN */ | |
164 | ushort NetOurNativeVLAN = 0xFFFF; /* ditto */ | |
a3d991bd | 165 | |
2d966958 WD |
166 | char BootFile[128]; /* Boot File name */ |
167 | ||
643d1ab2 | 168 | #if defined(CONFIG_CMD_PING) |
53677ef1 | 169 | IPaddr_t NetPingIP; /* the ip address to ping */ |
73a8b27c WD |
170 | |
171 | static void PingStart(void); | |
172 | #endif | |
173 | ||
643d1ab2 | 174 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
175 | static void CDPStart(void); |
176 | #endif | |
177 | ||
643d1ab2 | 178 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
179 | IPaddr_t NetNtpServerIP; /* NTP server IP address */ |
180 | int NetTimeOffset=0; /* offset time from UTC */ | |
181 | #endif | |
182 | ||
68ceb29e WD |
183 | #ifdef CONFIG_NETCONSOLE |
184 | void NcStart(void); | |
185 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); | |
186 | #endif | |
187 | ||
2d966958 WD |
188 | volatile uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
189 | ||
190 | volatile uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ | |
191 | ||
192 | static rxhand_f *packetHandler; /* Current RX packet handler */ | |
193 | static thand_f *timeHandler; /* Current timeout handler */ | |
e0ac62d7 WD |
194 | static ulong timeStart; /* Time base value */ |
195 | static ulong timeDelta; /* Current timeout value */ | |
2d966958 WD |
196 | volatile uchar *NetTxPacket = 0; /* THE transmit packet */ |
197 | ||
198 | static int net_check_prereq (proto_t protocol); | |
199 | ||
73a8b27c WD |
200 | /**********************************************************************/ |
201 | ||
202 | IPaddr_t NetArpWaitPacketIP; | |
203 | IPaddr_t NetArpWaitReplyIP; | |
204 | uchar *NetArpWaitPacketMAC; /* MAC address of waiting packet's destination */ | |
b2f50807 | 205 | uchar *NetArpWaitTxPacket; /* THE transmit packet */ |
73a8b27c | 206 | int NetArpWaitTxPacketSize; |
53677ef1 | 207 | uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN]; |
73a8b27c WD |
208 | ulong NetArpWaitTimerStart; |
209 | int NetArpWaitTry; | |
210 | ||
6e592385 | 211 | void ArpRequest (void) |
73a8b27c WD |
212 | { |
213 | int i; | |
214 | volatile uchar *pkt; | |
6e592385 | 215 | ARP_t *arp; |
73a8b27c | 216 | |
0ebf04c6 RG |
217 | debug("ARP broadcast %d\n", NetArpWaitTry); |
218 | ||
73a8b27c WD |
219 | pkt = NetTxPacket; |
220 | ||
6e592385 | 221 | pkt += NetSetEther (pkt, NetBcastAddr, PROT_ARP); |
73a8b27c | 222 | |
6e592385 | 223 | arp = (ARP_t *) pkt; |
73a8b27c | 224 | |
6e592385 WD |
225 | arp->ar_hrd = htons (ARP_ETHER); |
226 | arp->ar_pro = htons (PROT_IP); | |
73a8b27c WD |
227 | arp->ar_hln = 6; |
228 | arp->ar_pln = 4; | |
6e592385 | 229 | arp->ar_op = htons (ARPOP_REQUEST); |
73a8b27c | 230 | |
b2f50807 WD |
231 | memcpy (&arp->ar_data[0], NetOurEther, 6); /* source ET addr */ |
232 | NetWriteIP ((uchar *) & arp->ar_data[6], NetOurIP); /* source IP addr */ | |
6e592385 WD |
233 | for (i = 10; i < 16; ++i) { |
234 | arp->ar_data[i] = 0; /* dest ET addr = 0 */ | |
73a8b27c WD |
235 | } |
236 | ||
6e592385 WD |
237 | if ((NetArpWaitPacketIP & NetOurSubnetMask) != |
238 | (NetOurIP & NetOurSubnetMask)) { | |
239 | if (NetOurGatewayIP == 0) { | |
240 | puts ("## Warning: gatewayip needed but not set\n"); | |
d509b812 WD |
241 | NetArpWaitReplyIP = NetArpWaitPacketIP; |
242 | } else { | |
243 | NetArpWaitReplyIP = NetOurGatewayIP; | |
6e592385 | 244 | } |
6e592385 WD |
245 | } else { |
246 | NetArpWaitReplyIP = NetArpWaitPacketIP; | |
247 | } | |
73a8b27c | 248 | |
6e592385 WD |
249 | NetWriteIP ((uchar *) & arp->ar_data[16], NetArpWaitReplyIP); |
250 | (void) eth_send (NetTxPacket, (pkt - NetTxPacket) + ARP_HDR_SIZE); | |
73a8b27c WD |
251 | } |
252 | ||
253 | void ArpTimeoutCheck(void) | |
254 | { | |
255 | ulong t; | |
256 | ||
257 | if (!NetArpWaitPacketIP) | |
258 | return; | |
259 | ||
260 | t = get_timer(0); | |
261 | ||
262 | /* check for arp timeout */ | |
49f3bdbb | 263 | if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { |
73a8b27c WD |
264 | NetArpWaitTry++; |
265 | ||
266 | if (NetArpWaitTry >= ARP_TIMEOUT_COUNT) { | |
267 | puts ("\nARP Retry count exceeded; starting again\n"); | |
268 | NetArpWaitTry = 0; | |
269 | NetStartAgain(); | |
270 | } else { | |
271 | NetArpWaitTimerStart = t; | |
272 | ArpRequest(); | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
da95427c | 277 | static void |
2f70c49e HS |
278 | NetInitLoop(proto_t protocol) |
279 | { | |
da95427c | 280 | static int env_changed_id = 0; |
2f70c49e HS |
281 | bd_t *bd = gd->bd; |
282 | int env_id = get_env_id (); | |
283 | ||
284 | /* update only when the environment has changed */ | |
3c172c4f | 285 | if (env_changed_id != env_id) { |
2f70c49e HS |
286 | NetCopyIP(&NetOurIP, &bd->bi_ip_addr); |
287 | NetOurGatewayIP = getenv_IPaddr ("gatewayip"); | |
288 | NetOurSubnetMask= getenv_IPaddr ("netmask"); | |
2f70c49e | 289 | NetServerIP = getenv_IPaddr ("serverip"); |
2f70c49e | 290 | NetOurNativeVLAN = getenv_VLAN("nvlan"); |
3c172c4f | 291 | NetOurVLAN = getenv_VLAN("vlan"); |
1a32bf41 RG |
292 | #if defined(CONFIG_CMD_DNS) |
293 | NetOurDNSIP = getenv_IPaddr("dnsip"); | |
294 | #endif | |
3c172c4f | 295 | env_changed_id = env_id; |
2f70c49e | 296 | } |
3c172c4f | 297 | |
da95427c | 298 | return; |
2f70c49e HS |
299 | } |
300 | ||
2d966958 WD |
301 | /**********************************************************************/ |
302 | /* | |
303 | * Main network processing loop. | |
304 | */ | |
305 | ||
306 | int | |
307 | NetLoop(proto_t protocol) | |
308 | { | |
2d966958 WD |
309 | bd_t *bd = gd->bd; |
310 | ||
311 | #ifdef CONFIG_NET_MULTI | |
312 | NetRestarted = 0; | |
313 | NetDevExists = 0; | |
314 | #endif | |
315 | ||
73a8b27c WD |
316 | /* XXX problem with bss workaround */ |
317 | NetArpWaitPacketMAC = NULL; | |
318 | NetArpWaitTxPacket = NULL; | |
319 | NetArpWaitPacketIP = 0; | |
320 | NetArpWaitReplyIP = 0; | |
321 | NetArpWaitTxPacket = NULL; | |
322 | NetTxPacket = NULL; | |
323 | ||
2d966958 WD |
324 | if (!NetTxPacket) { |
325 | int i; | |
2d966958 WD |
326 | /* |
327 | * Setup packet buffers, aligned correctly. | |
328 | */ | |
329 | NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); | |
330 | NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; | |
331 | for (i = 0; i < PKTBUFSRX; i++) { | |
332 | NetRxPackets[i] = NetTxPacket + (i+1)*PKTSIZE_ALIGN; | |
333 | } | |
73a8b27c WD |
334 | } |
335 | ||
336 | if (!NetArpWaitTxPacket) { | |
337 | NetArpWaitTxPacket = &NetArpWaitPacketBuf[0] + (PKTALIGN - 1); | |
338 | NetArpWaitTxPacket -= (ulong)NetArpWaitTxPacket % PKTALIGN; | |
339 | NetArpWaitTxPacketSize = 0; | |
2d966958 WD |
340 | } |
341 | ||
342 | eth_halt(); | |
6e592385 | 343 | #ifdef CONFIG_NET_MULTI |
a3d991bd | 344 | eth_set_current(); |
6e592385 | 345 | #endif |
b1bf6f2c WD |
346 | if (eth_init(bd) < 0) { |
347 | eth_halt(); | |
6e592385 | 348 | return(-1); |
b1bf6f2c | 349 | } |
2d966958 WD |
350 | |
351 | restart: | |
352 | #ifdef CONFIG_NET_MULTI | |
353 | memcpy (NetOurEther, eth_get_dev()->enetaddr, 6); | |
354 | #else | |
95823ca0 | 355 | eth_getenv_enetaddr("ethaddr", NetOurEther); |
2d966958 WD |
356 | #endif |
357 | ||
358 | NetState = NETLOOP_CONTINUE; | |
359 | ||
360 | /* | |
361 | * Start the ball rolling with the given start function. From | |
362 | * here on, this code is a state machine driven by received | |
363 | * packets and timer events. | |
364 | */ | |
2f70c49e | 365 | NetInitLoop(protocol); |
2d966958 WD |
366 | |
367 | switch (net_check_prereq (protocol)) { | |
368 | case 1: | |
369 | /* network not configured */ | |
b1bf6f2c | 370 | eth_halt(); |
1d0350ed | 371 | return (-1); |
2d966958 WD |
372 | |
373 | #ifdef CONFIG_NET_MULTI | |
374 | case 2: | |
375 | /* network device not configured */ | |
376 | break; | |
377 | #endif /* CONFIG_NET_MULTI */ | |
378 | ||
379 | case 0: | |
380 | #ifdef CONFIG_NET_MULTI | |
381 | NetDevExists = 1; | |
382 | #endif | |
383 | switch (protocol) { | |
384 | case TFTP: | |
385 | /* always use ARP to get server ethernet address */ | |
73a8b27c | 386 | TftpStart(); |
2d966958 WD |
387 | break; |
388 | ||
643d1ab2 | 389 | #if defined(CONFIG_CMD_DHCP) |
2d966958 | 390 | case DHCP: |
d407bf52 | 391 | BootpTry = 0; |
09133f85 | 392 | NetOurIP = 0; |
2d966958 WD |
393 | DhcpRequest(); /* Basically same as BOOTP */ |
394 | break; | |
610f2e9c | 395 | #endif |
2d966958 WD |
396 | |
397 | case BOOTP: | |
398 | BootpTry = 0; | |
09133f85 | 399 | NetOurIP = 0; |
2d966958 WD |
400 | BootpRequest (); |
401 | break; | |
402 | ||
403 | case RARP: | |
404 | RarpTry = 0; | |
09133f85 | 405 | NetOurIP = 0; |
2d966958 WD |
406 | RarpRequest (); |
407 | break; | |
643d1ab2 | 408 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
409 | case PING: |
410 | PingStart(); | |
411 | break; | |
cbd8a35c | 412 | #endif |
643d1ab2 | 413 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c WD |
414 | case NFS: |
415 | NfsStart(); | |
416 | break; | |
a3d991bd | 417 | #endif |
643d1ab2 | 418 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
419 | case CDP: |
420 | CDPStart(); | |
421 | break; | |
68ceb29e WD |
422 | #endif |
423 | #ifdef CONFIG_NETCONSOLE | |
424 | case NETCONS: | |
425 | NcStart(); | |
426 | break; | |
ea287deb | 427 | #endif |
643d1ab2 | 428 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
429 | case SNTP: |
430 | SntpStart(); | |
431 | break; | |
1a32bf41 RG |
432 | #endif |
433 | #if defined(CONFIG_CMD_DNS) | |
434 | case DNS: | |
435 | DnsStart(); | |
436 | break; | |
73a8b27c | 437 | #endif |
2d966958 WD |
438 | default: |
439 | break; | |
440 | } | |
441 | ||
442 | NetBootFileXferSize = 0; | |
443 | break; | |
444 | } | |
445 | ||
643d1ab2 | 446 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 447 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && defined(CONFIG_STATUS_LED) && defined(STATUS_LED_RED) |
fc3e2165 | 448 | /* |
42d1f039 | 449 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 450 | */ |
6d0f6bcf | 451 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
452 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
453 | } else { | |
454 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
455 | } | |
6d0f6bcf | 456 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 457 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
458 | |
459 | /* | |
460 | * Main packet reception loop. Loop receiving packets until | |
59acc296 | 461 | * someone sets `NetState' to a state that terminates. |
2d966958 WD |
462 | */ |
463 | for (;;) { | |
464 | WATCHDOG_RESET(); | |
465 | #ifdef CONFIG_SHOW_ACTIVITY | |
466 | { | |
467 | extern void show_activity(int arg); | |
468 | show_activity(1); | |
469 | } | |
470 | #endif | |
471 | /* | |
472 | * Check the ethernet for a new packet. The ethernet | |
473 | * receive routine will process it. | |
474 | */ | |
40cb90ee | 475 | eth_rx(); |
2d966958 WD |
476 | |
477 | /* | |
478 | * Abort if ctrl-c was pressed. | |
479 | */ | |
480 | if (ctrlc()) { | |
8bde7f77 | 481 | eth_halt(); |
4b9206ed | 482 | puts ("\nAbort\n"); |
1d0350ed | 483 | return (-1); |
2d966958 WD |
484 | } |
485 | ||
73a8b27c | 486 | ArpTimeoutCheck(); |
2d966958 WD |
487 | |
488 | /* | |
489 | * Check for a timeout, and run the timeout handler | |
490 | * if we have one. | |
491 | */ | |
e0ac62d7 | 492 | if (timeHandler && ((get_timer(0) - timeStart) > timeDelta)) { |
2d966958 WD |
493 | thand_f *x; |
494 | ||
643d1ab2 | 495 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
6d0f6bcf | 496 | # if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
63153492 | 497 | defined(CONFIG_STATUS_LED) && \ |
59acc296 | 498 | defined(STATUS_LED_RED) |
fc3e2165 | 499 | /* |
42d1f039 | 500 | * Echo the inverted link state to the fault LED. |
fc3e2165 | 501 | */ |
6d0f6bcf | 502 | if(miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) { |
fc3e2165 WD |
503 | status_led_set (STATUS_LED_RED, STATUS_LED_OFF); |
504 | } else { | |
505 | status_led_set (STATUS_LED_RED, STATUS_LED_ON); | |
506 | } | |
6d0f6bcf | 507 | # endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
fc3e2165 | 508 | #endif /* CONFIG_MII, ... */ |
2d966958 WD |
509 | x = timeHandler; |
510 | timeHandler = (thand_f *)0; | |
511 | (*x)(); | |
512 | } | |
513 | ||
514 | ||
515 | switch (NetState) { | |
516 | ||
517 | case NETLOOP_RESTART: | |
518 | #ifdef CONFIG_NET_MULTI | |
519 | NetRestarted = 1; | |
520 | #endif | |
521 | goto restart; | |
522 | ||
523 | case NETLOOP_SUCCESS: | |
524 | if (NetBootFileXferSize > 0) { | |
f34024d4 | 525 | char buf[20]; |
2d966958 WD |
526 | printf("Bytes transferred = %ld (%lx hex)\n", |
527 | NetBootFileXferSize, | |
528 | NetBootFileXferSize); | |
f34024d4 | 529 | sprintf(buf, "%lX", NetBootFileXferSize); |
2d966958 | 530 | setenv("filesize", buf); |
a3d991bd WD |
531 | |
532 | sprintf(buf, "%lX", (unsigned long)load_addr); | |
533 | setenv("fileaddr", buf); | |
2d966958 WD |
534 | } |
535 | eth_halt(); | |
536 | return NetBootFileXferSize; | |
537 | ||
538 | case NETLOOP_FAIL: | |
1d0350ed | 539 | return (-1); |
2d966958 WD |
540 | } |
541 | } | |
542 | } | |
543 | ||
544 | /**********************************************************************/ | |
545 | ||
546 | static void | |
547 | startAgainTimeout(void) | |
548 | { | |
549 | NetState = NETLOOP_RESTART; | |
550 | } | |
551 | ||
552 | static void | |
553 | startAgainHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
554 | { | |
555 | /* Totally ignore the packet */ | |
556 | } | |
557 | ||
6e592385 | 558 | void NetStartAgain (void) |
2d966958 | 559 | { |
6e592385 WD |
560 | char *nretry; |
561 | int noretry = 0, once = 0; | |
a3d991bd | 562 | |
6e592385 WD |
563 | if ((nretry = getenv ("netretry")) != NULL) { |
564 | noretry = (strcmp (nretry, "no") == 0); | |
565 | once = (strcmp (nretry, "once") == 0); | |
566 | } | |
567 | if (noretry) { | |
568 | eth_halt (); | |
a3d991bd WD |
569 | NetState = NETLOOP_FAIL; |
570 | return; | |
571 | } | |
2d966958 | 572 | #ifndef CONFIG_NET_MULTI |
49f3bdbb | 573 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
574 | NetSetHandler (startAgainHandler); |
575 | #else /* !CONFIG_NET_MULTI*/ | |
576 | eth_halt (); | |
8b0c5c12 | 577 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
6e592385 | 578 | eth_try_another (!NetRestarted); |
8b0c5c12 | 579 | #endif |
6e592385 WD |
580 | eth_init (gd->bd); |
581 | if (NetRestartWrap) { | |
2d966958 | 582 | NetRestartWrap = 0; |
6e592385 | 583 | if (NetDevExists && !once) { |
49f3bdbb | 584 | NetSetTimeout (10000UL, startAgainTimeout); |
6e592385 WD |
585 | NetSetHandler (startAgainHandler); |
586 | } else { | |
2d966958 WD |
587 | NetState = NETLOOP_FAIL; |
588 | } | |
6e592385 | 589 | } else { |
2d966958 WD |
590 | NetState = NETLOOP_RESTART; |
591 | } | |
6e592385 | 592 | #endif /* CONFIG_NET_MULTI */ |
2d966958 WD |
593 | } |
594 | ||
595 | /**********************************************************************/ | |
596 | /* | |
597 | * Miscelaneous bits. | |
598 | */ | |
599 | ||
600 | void | |
601 | NetSetHandler(rxhand_f * f) | |
602 | { | |
603 | packetHandler = f; | |
604 | } | |
605 | ||
606 | ||
607 | void | |
3e01d75f | 608 | NetSetTimeout(ulong iv, thand_f * f) |
2d966958 WD |
609 | { |
610 | if (iv == 0) { | |
611 | timeHandler = (thand_f *)0; | |
612 | } else { | |
613 | timeHandler = f; | |
e0ac62d7 WD |
614 | timeStart = get_timer(0); |
615 | timeDelta = iv; | |
2d966958 WD |
616 | } |
617 | } | |
618 | ||
619 | ||
620 | void | |
621 | NetSendPacket(volatile uchar * pkt, int len) | |
622 | { | |
623 | (void) eth_send(pkt, len); | |
624 | } | |
625 | ||
73a8b27c WD |
626 | int |
627 | NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, int len) | |
628 | { | |
a3d991bd WD |
629 | uchar *pkt; |
630 | ||
73a8b27c WD |
631 | /* convert to new style broadcast */ |
632 | if (dest == 0) | |
633 | dest = 0xFFFFFFFF; | |
634 | ||
635 | /* if broadcast, make the ether address a broadcast and don't do ARP */ | |
636 | if (dest == 0xFFFFFFFF) | |
637 | ether = NetBcastAddr; | |
638 | ||
639 | /* if MAC address was not discovered yet, save the packet and do an ARP request */ | |
640 | if (memcmp(ether, NetEtherNullAddr, 6) == 0) { | |
641 | ||
0ebf04c6 RG |
642 | debug("sending ARP for %08lx\n", dest); |
643 | ||
73a8b27c WD |
644 | NetArpWaitPacketIP = dest; |
645 | NetArpWaitPacketMAC = ether; | |
a3d991bd WD |
646 | |
647 | pkt = NetArpWaitTxPacket; | |
648 | pkt += NetSetEther (pkt, NetArpWaitPacketMAC, PROT_IP); | |
649 | ||
650 | NetSetIP (pkt, dest, dport, sport, len); | |
651 | memcpy(pkt + IP_HDR_SIZE, (uchar *)NetTxPacket + (pkt - (uchar *)NetArpWaitTxPacket) + IP_HDR_SIZE, len); | |
73a8b27c WD |
652 | |
653 | /* size of the waiting packet */ | |
a3d991bd | 654 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE + len; |
73a8b27c WD |
655 | |
656 | /* and do the ARP request */ | |
657 | NetArpWaitTry = 1; | |
658 | NetArpWaitTimerStart = get_timer(0); | |
659 | ArpRequest(); | |
660 | return 1; /* waiting */ | |
661 | } | |
662 | ||
0ebf04c6 | 663 | debug("sending UDP to %08lx/%pM\n", dest, ether); |
73a8b27c | 664 | |
a3d991bd WD |
665 | pkt = (uchar *)NetTxPacket; |
666 | pkt += NetSetEther (pkt, ether, PROT_IP); | |
667 | NetSetIP (pkt, dest, dport, sport, len); | |
668 | (void) eth_send(NetTxPacket, (pkt - NetTxPacket) + IP_HDR_SIZE + len); | |
73a8b27c | 669 | |
6e592385 | 670 | return 0; /* transmitted */ |
73a8b27c WD |
671 | } |
672 | ||
643d1ab2 | 673 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
674 | static ushort PingSeqNo; |
675 | ||
676 | int PingSend(void) | |
677 | { | |
678 | static uchar mac[6]; | |
679 | volatile IP_t *ip; | |
680 | volatile ushort *s; | |
a3d991bd | 681 | uchar *pkt; |
73a8b27c WD |
682 | |
683 | /* XXX always send arp request */ | |
684 | ||
685 | memcpy(mac, NetEtherNullAddr, 6); | |
686 | ||
0ebf04c6 | 687 | debug("sending ARP for %08lx\n", NetPingIP); |
73a8b27c WD |
688 | |
689 | NetArpWaitPacketIP = NetPingIP; | |
690 | NetArpWaitPacketMAC = mac; | |
691 | ||
a3d991bd WD |
692 | pkt = NetArpWaitTxPacket; |
693 | pkt += NetSetEther(pkt, mac, PROT_IP); | |
73a8b27c | 694 | |
a3d991bd | 695 | ip = (volatile IP_t *)pkt; |
73a8b27c WD |
696 | |
697 | /* | |
698 | * Construct an IP and ICMP header. (need to set no fragment bit - XXX) | |
699 | */ | |
700 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
701 | ip->ip_tos = 0; | |
702 | ip->ip_len = htons(IP_HDR_SIZE_NO_UDP + 8); | |
703 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 704 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
73a8b27c WD |
705 | ip->ip_ttl = 255; |
706 | ip->ip_p = 0x01; /* ICMP */ | |
707 | ip->ip_sum = 0; | |
708 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
709 | NetCopyIP((void*)&ip->ip_dst, &NetPingIP); /* - "" - */ | |
710 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
711 | ||
712 | s = &ip->udp_src; /* XXX ICMP starts here */ | |
713 | s[0] = htons(0x0800); /* echo-request, code */ | |
714 | s[1] = 0; /* checksum */ | |
53677ef1 | 715 | s[2] = 0; /* identifier */ |
73a8b27c WD |
716 | s[3] = htons(PingSeqNo++); /* sequence number */ |
717 | s[1] = ~NetCksum((uchar *)s, 8/2); | |
718 | ||
719 | /* size of the waiting packet */ | |
a3d991bd | 720 | NetArpWaitTxPacketSize = (pkt - NetArpWaitTxPacket) + IP_HDR_SIZE_NO_UDP + 8; |
73a8b27c WD |
721 | |
722 | /* and do the ARP request */ | |
723 | NetArpWaitTry = 1; | |
724 | NetArpWaitTimerStart = get_timer(0); | |
725 | ArpRequest(); | |
726 | return 1; /* waiting */ | |
727 | } | |
728 | ||
729 | static void | |
730 | PingTimeout (void) | |
731 | { | |
732 | eth_halt(); | |
733 | NetState = NETLOOP_FAIL; /* we did not get the reply */ | |
734 | } | |
2d966958 | 735 | |
73a8b27c WD |
736 | static void |
737 | PingHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
738 | { | |
739 | IPaddr_t tmp; | |
740 | volatile IP_t *ip = (volatile IP_t *)pkt; | |
741 | ||
742 | tmp = NetReadIP((void *)&ip->ip_src); | |
743 | if (tmp != NetPingIP) | |
744 | return; | |
745 | ||
746 | NetState = NETLOOP_SUCCESS; | |
747 | } | |
748 | ||
749 | static void PingStart(void) | |
750 | { | |
a3d991bd WD |
751 | #if defined(CONFIG_NET_MULTI) |
752 | printf ("Using %s device\n", eth_get_name()); | |
6e592385 | 753 | #endif /* CONFIG_NET_MULTI */ |
49f3bdbb | 754 | NetSetTimeout (10000UL, PingTimeout); |
73a8b27c WD |
755 | NetSetHandler (PingHandler); |
756 | ||
757 | PingSend(); | |
758 | } | |
610f2e9c | 759 | #endif |
2d966958 | 760 | |
643d1ab2 | 761 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
762 | |
763 | #define CDP_DEVICE_ID_TLV 0x0001 | |
764 | #define CDP_ADDRESS_TLV 0x0002 | |
765 | #define CDP_PORT_ID_TLV 0x0003 | |
766 | #define CDP_CAPABILITIES_TLV 0x0004 | |
767 | #define CDP_VERSION_TLV 0x0005 | |
768 | #define CDP_PLATFORM_TLV 0x0006 | |
769 | #define CDP_NATIVE_VLAN_TLV 0x000a | |
770 | #define CDP_APPLIANCE_VLAN_TLV 0x000e | |
771 | #define CDP_TRIGGER_TLV 0x000f | |
772 | #define CDP_POWER_CONSUMPTION_TLV 0x0010 | |
773 | #define CDP_SYSNAME_TLV 0x0014 | |
774 | #define CDP_SYSOBJECT_TLV 0x0015 | |
775 | #define CDP_MANAGEMENT_ADDRESS_TLV 0x0016 | |
776 | ||
49f3bdbb | 777 | #define CDP_TIMEOUT 250UL /* one packet every 250ms */ |
a3d991bd WD |
778 | |
779 | static int CDPSeq; | |
780 | static int CDPOK; | |
781 | ||
782 | ushort CDPNativeVLAN; | |
783 | ushort CDPApplianceVLAN; | |
784 | ||
785 | static const uchar CDP_SNAP_hdr[8] = { 0xAA, 0xAA, 0x03, 0x00, 0x00, 0x0C, 0x20, 0x00 }; | |
786 | ||
787 | static ushort CDP_compute_csum(const uchar *buff, ushort len) | |
788 | { | |
789 | ushort csum; | |
790 | int odd; | |
791 | ulong result = 0; | |
792 | ushort leftover; | |
77ddac94 | 793 | ushort *p; |
a3d991bd WD |
794 | |
795 | if (len > 0) { | |
796 | odd = 1 & (ulong)buff; | |
797 | if (odd) { | |
798 | result = *buff << 8; | |
799 | len--; | |
800 | buff++; | |
801 | } | |
802 | while (len > 1) { | |
77ddac94 WD |
803 | p = (ushort *)buff; |
804 | result += *p++; | |
805 | buff = (uchar *)p; | |
a3d991bd WD |
806 | if (result & 0x80000000) |
807 | result = (result & 0xFFFF) + (result >> 16); | |
808 | len -= 2; | |
809 | } | |
810 | if (len) { | |
811 | leftover = (signed short)(*(const signed char *)buff); | |
3ada834e WD |
812 | /* CISCO SUCKS big time! (and blows too): |
813 | * CDP uses the IP checksum algorithm with a twist; | |
814 | * for the last byte it *sign* extends and sums. | |
815 | */ | |
a3d991bd WD |
816 | result = (result & 0xffff0000) | ((result + leftover) & 0x0000ffff); |
817 | } | |
818 | while (result >> 16) | |
819 | result = (result & 0xFFFF) + (result >> 16); | |
820 | ||
821 | if (odd) | |
822 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | |
823 | } | |
824 | ||
825 | /* add up 16-bit and 17-bit words for 17+c bits */ | |
826 | result = (result & 0xffff) + (result >> 16); | |
827 | /* add up 16-bit and 2-bit for 16+c bit */ | |
828 | result = (result & 0xffff) + (result >> 16); | |
829 | /* add up carry.. */ | |
830 | result = (result & 0xffff) + (result >> 16); | |
831 | ||
832 | /* negate */ | |
833 | csum = ~(ushort)result; | |
834 | ||
835 | /* run time endian detection */ | |
836 | if (csum != htons(csum)) /* little endian */ | |
837 | csum = htons(csum); | |
838 | ||
839 | return csum; | |
840 | } | |
841 | ||
842 | int CDPSendTrigger(void) | |
843 | { | |
844 | volatile uchar *pkt; | |
845 | volatile ushort *s; | |
846 | volatile ushort *cp; | |
847 | Ethernet_t *et; | |
a3d991bd WD |
848 | int len; |
849 | ushort chksum; | |
6e592385 WD |
850 | #if defined(CONFIG_CDP_DEVICE_ID) || defined(CONFIG_CDP_PORT_ID) || \ |
851 | defined(CONFIG_CDP_VERSION) || defined(CONFIG_CDP_PLATFORM) | |
852 | char buf[32]; | |
853 | #endif | |
a3d991bd WD |
854 | |
855 | pkt = NetTxPacket; | |
856 | et = (Ethernet_t *)pkt; | |
857 | ||
858 | /* NOTE: trigger sent not on any VLAN */ | |
859 | ||
860 | /* form ethernet header */ | |
861 | memcpy(et->et_dest, NetCDPAddr, 6); | |
862 | memcpy(et->et_src, NetOurEther, 6); | |
863 | ||
864 | pkt += ETHER_HDR_SIZE; | |
865 | ||
866 | /* SNAP header */ | |
867 | memcpy((uchar *)pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)); | |
868 | pkt += sizeof(CDP_SNAP_hdr); | |
869 | ||
870 | /* CDP header */ | |
871 | *pkt++ = 0x02; /* CDP version 2 */ | |
872 | *pkt++ = 180; /* TTL */ | |
873 | s = (volatile ushort *)pkt; | |
874 | cp = s; | |
875 | *s++ = htons(0); /* checksum (0 for later calculation) */ | |
876 | ||
877 | /* CDP fields */ | |
878 | #ifdef CONFIG_CDP_DEVICE_ID | |
879 | *s++ = htons(CDP_DEVICE_ID_TLV); | |
880 | *s++ = htons(CONFIG_CDP_DEVICE_ID); | |
95823ca0 | 881 | sprintf(buf, CONFIG_CDP_DEVICE_ID_PREFIX "%pm", NetOurEther); |
a3d991bd WD |
882 | memcpy((uchar *)s, buf, 16); |
883 | s += 16 / 2; | |
884 | #endif | |
885 | ||
886 | #ifdef CONFIG_CDP_PORT_ID | |
887 | *s++ = htons(CDP_PORT_ID_TLV); | |
888 | memset(buf, 0, sizeof(buf)); | |
889 | sprintf(buf, CONFIG_CDP_PORT_ID, eth_get_dev_index()); | |
890 | len = strlen(buf); | |
891 | if (len & 1) /* make it even */ | |
892 | len++; | |
893 | *s++ = htons(len + 4); | |
894 | memcpy((uchar *)s, buf, len); | |
895 | s += len / 2; | |
896 | #endif | |
897 | ||
898 | #ifdef CONFIG_CDP_CAPABILITIES | |
899 | *s++ = htons(CDP_CAPABILITIES_TLV); | |
900 | *s++ = htons(8); | |
901 | *(ulong *)s = htonl(CONFIG_CDP_CAPABILITIES); | |
902 | s += 2; | |
903 | #endif | |
904 | ||
905 | #ifdef CONFIG_CDP_VERSION | |
906 | *s++ = htons(CDP_VERSION_TLV); | |
907 | memset(buf, 0, sizeof(buf)); | |
908 | strcpy(buf, CONFIG_CDP_VERSION); | |
909 | len = strlen(buf); | |
910 | if (len & 1) /* make it even */ | |
911 | len++; | |
912 | *s++ = htons(len + 4); | |
913 | memcpy((uchar *)s, buf, len); | |
914 | s += len / 2; | |
915 | #endif | |
916 | ||
917 | #ifdef CONFIG_CDP_PLATFORM | |
918 | *s++ = htons(CDP_PLATFORM_TLV); | |
919 | memset(buf, 0, sizeof(buf)); | |
920 | strcpy(buf, CONFIG_CDP_PLATFORM); | |
921 | len = strlen(buf); | |
922 | if (len & 1) /* make it even */ | |
923 | len++; | |
924 | *s++ = htons(len + 4); | |
925 | memcpy((uchar *)s, buf, len); | |
926 | s += len / 2; | |
927 | #endif | |
928 | ||
929 | #ifdef CONFIG_CDP_TRIGGER | |
930 | *s++ = htons(CDP_TRIGGER_TLV); | |
931 | *s++ = htons(8); | |
932 | *(ulong *)s = htonl(CONFIG_CDP_TRIGGER); | |
933 | s += 2; | |
934 | #endif | |
935 | ||
936 | #ifdef CONFIG_CDP_POWER_CONSUMPTION | |
937 | *s++ = htons(CDP_POWER_CONSUMPTION_TLV); | |
938 | *s++ = htons(6); | |
939 | *s++ = htons(CONFIG_CDP_POWER_CONSUMPTION); | |
940 | #endif | |
941 | ||
942 | /* length of ethernet packet */ | |
943 | len = (uchar *)s - ((uchar *)NetTxPacket + ETHER_HDR_SIZE); | |
944 | et->et_protlen = htons(len); | |
945 | ||
946 | len = ETHER_HDR_SIZE + sizeof(CDP_SNAP_hdr); | |
947 | chksum = CDP_compute_csum((uchar *)NetTxPacket + len, (uchar *)s - (NetTxPacket + len)); | |
948 | if (chksum == 0) | |
949 | chksum = 0xFFFF; | |
950 | *cp = htons(chksum); | |
951 | ||
952 | (void) eth_send(NetTxPacket, (uchar *)s - NetTxPacket); | |
953 | return 0; | |
954 | } | |
955 | ||
956 | static void | |
957 | CDPTimeout (void) | |
958 | { | |
959 | CDPSeq++; | |
960 | ||
961 | if (CDPSeq < 3) { | |
962 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
963 | CDPSendTrigger(); | |
964 | return; | |
965 | } | |
966 | ||
967 | /* if not OK try again */ | |
968 | if (!CDPOK) | |
969 | NetStartAgain(); | |
970 | else | |
971 | NetState = NETLOOP_SUCCESS; | |
972 | } | |
973 | ||
974 | static void | |
975 | CDPDummyHandler (uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
976 | { | |
977 | /* nothing */ | |
978 | } | |
979 | ||
980 | static void | |
981 | CDPHandler(const uchar * pkt, unsigned len) | |
982 | { | |
983 | const uchar *t; | |
984 | const ushort *ss; | |
985 | ushort type, tlen; | |
986 | uchar applid; | |
987 | ushort vlan, nvlan; | |
988 | ||
989 | /* minimum size? */ | |
990 | if (len < sizeof(CDP_SNAP_hdr) + 4) | |
991 | goto pkt_short; | |
992 | ||
993 | /* check for valid CDP SNAP header */ | |
994 | if (memcmp(pkt, CDP_SNAP_hdr, sizeof(CDP_SNAP_hdr)) != 0) | |
995 | return; | |
996 | ||
997 | pkt += sizeof(CDP_SNAP_hdr); | |
998 | len -= sizeof(CDP_SNAP_hdr); | |
999 | ||
1000 | /* Version of CDP protocol must be >= 2 and TTL != 0 */ | |
1001 | if (pkt[0] < 0x02 || pkt[1] == 0) | |
1002 | return; | |
1003 | ||
1004 | /* if version is greater than 0x02 maybe we'll have a problem; output a warning */ | |
1005 | if (pkt[0] != 0x02) | |
1006 | printf("** WARNING: CDP packet received with a protocol version %d > 2\n", | |
1007 | pkt[0] & 0xff); | |
1008 | ||
1009 | if (CDP_compute_csum(pkt, len) != 0) | |
1010 | return; | |
1011 | ||
1012 | pkt += 4; | |
1013 | len -= 4; | |
1014 | ||
1015 | vlan = htons(-1); | |
1016 | nvlan = htons(-1); | |
1017 | while (len > 0) { | |
1018 | if (len < 4) | |
1019 | goto pkt_short; | |
1020 | ||
1021 | ss = (const ushort *)pkt; | |
1022 | type = ntohs(ss[0]); | |
1023 | tlen = ntohs(ss[1]); | |
1024 | if (tlen > len) { | |
1025 | goto pkt_short; | |
1026 | } | |
1027 | ||
1028 | pkt += tlen; | |
1029 | len -= tlen; | |
1030 | ||
1031 | ss += 2; /* point ss to the data of the TLV */ | |
1032 | tlen -= 4; | |
1033 | ||
1034 | switch (type) { | |
1035 | case CDP_DEVICE_ID_TLV: | |
1036 | break; | |
1037 | case CDP_ADDRESS_TLV: | |
1038 | break; | |
1039 | case CDP_PORT_ID_TLV: | |
1040 | break; | |
1041 | case CDP_CAPABILITIES_TLV: | |
1042 | break; | |
1043 | case CDP_VERSION_TLV: | |
1044 | break; | |
1045 | case CDP_PLATFORM_TLV: | |
1046 | break; | |
1047 | case CDP_NATIVE_VLAN_TLV: | |
1048 | nvlan = *ss; | |
1049 | break; | |
1050 | case CDP_APPLIANCE_VLAN_TLV: | |
1051 | t = (const uchar *)ss; | |
1052 | while (tlen > 0) { | |
1053 | if (tlen < 3) | |
1054 | goto pkt_short; | |
1055 | ||
1056 | applid = t[0]; | |
1057 | ss = (const ushort *)(t + 1); | |
1058 | ||
1059 | #ifdef CONFIG_CDP_APPLIANCE_VLAN_TYPE | |
1060 | if (applid == CONFIG_CDP_APPLIANCE_VLAN_TYPE) | |
1061 | vlan = *ss; | |
1062 | #else | |
1063 | vlan = ntohs(*ss); /* XXX will this work; dunno */ | |
1064 | #endif | |
1065 | t += 3; tlen -= 3; | |
1066 | } | |
1067 | break; | |
1068 | case CDP_TRIGGER_TLV: | |
1069 | break; | |
1070 | case CDP_POWER_CONSUMPTION_TLV: | |
1071 | break; | |
1072 | case CDP_SYSNAME_TLV: | |
1073 | break; | |
1074 | case CDP_SYSOBJECT_TLV: | |
1075 | break; | |
1076 | case CDP_MANAGEMENT_ADDRESS_TLV: | |
1077 | break; | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | CDPApplianceVLAN = vlan; | |
1082 | CDPNativeVLAN = nvlan; | |
1083 | ||
1084 | CDPOK = 1; | |
1085 | return; | |
1086 | ||
1087 | pkt_short: | |
1088 | printf("** CDP packet is too short\n"); | |
1089 | return; | |
1090 | } | |
1091 | ||
1092 | static void CDPStart(void) | |
1093 | { | |
1094 | #if defined(CONFIG_NET_MULTI) | |
1095 | printf ("Using %s device\n", eth_get_name()); | |
1096 | #endif | |
1097 | CDPSeq = 0; | |
1098 | CDPOK = 0; | |
1099 | ||
1100 | CDPNativeVLAN = htons(-1); | |
1101 | CDPApplianceVLAN = htons(-1); | |
1102 | ||
1103 | NetSetTimeout (CDP_TIMEOUT, CDPTimeout); | |
1104 | NetSetHandler (CDPDummyHandler); | |
1105 | ||
1106 | CDPSendTrigger(); | |
1107 | } | |
610f2e9c | 1108 | #endif |
a3d991bd WD |
1109 | |
1110 | ||
2d966958 | 1111 | void |
a3d991bd | 1112 | NetReceive(volatile uchar * inpkt, int len) |
2d966958 WD |
1113 | { |
1114 | Ethernet_t *et; | |
1115 | IP_t *ip; | |
1116 | ARP_t *arp; | |
1117 | IPaddr_t tmp; | |
1118 | int x; | |
a3d991bd | 1119 | uchar *pkt; |
643d1ab2 | 1120 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1121 | int iscdp; |
1122 | #endif | |
1123 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; | |
1124 | ||
0ebf04c6 | 1125 | debug("packet received\n"); |
2d966958 | 1126 | |
d9bec9f4 MF |
1127 | NetRxPacket = inpkt; |
1128 | NetRxPacketLen = len; | |
a3d991bd WD |
1129 | et = (Ethernet_t *)inpkt; |
1130 | ||
1131 | /* too small packet? */ | |
1132 | if (len < ETHER_HDR_SIZE) | |
1133 | return; | |
1134 | ||
f85b6071 RJ |
1135 | #ifdef CONFIG_API |
1136 | if (push_packet) { | |
1137 | (*push_packet)(inpkt, len); | |
1138 | return; | |
1139 | } | |
1140 | #endif | |
1141 | ||
643d1ab2 | 1142 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1143 | /* keep track if packet is CDP */ |
1144 | iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0; | |
1145 | #endif | |
1146 | ||
1147 | myvlanid = ntohs(NetOurVLAN); | |
1148 | if (myvlanid == (ushort)-1) | |
1149 | myvlanid = VLAN_NONE; | |
1150 | mynvlanid = ntohs(NetOurNativeVLAN); | |
1151 | if (mynvlanid == (ushort)-1) | |
1152 | mynvlanid = VLAN_NONE; | |
2d966958 WD |
1153 | |
1154 | x = ntohs(et->et_protlen); | |
1155 | ||
0ebf04c6 | 1156 | debug("packet received\n"); |
a3d991bd | 1157 | |
2d966958 WD |
1158 | if (x < 1514) { |
1159 | /* | |
1160 | * Got a 802 packet. Check the other protocol field. | |
1161 | */ | |
1162 | x = ntohs(et->et_prot); | |
a3d991bd WD |
1163 | |
1164 | ip = (IP_t *)(inpkt + E802_HDR_SIZE); | |
2d966958 | 1165 | len -= E802_HDR_SIZE; |
a3d991bd WD |
1166 | |
1167 | } else if (x != PROT_VLAN) { /* normal packet */ | |
1168 | ip = (IP_t *)(inpkt + ETHER_HDR_SIZE); | |
2d966958 | 1169 | len -= ETHER_HDR_SIZE; |
a3d991bd WD |
1170 | |
1171 | } else { /* VLAN packet */ | |
1172 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)et; | |
1173 | ||
0ebf04c6 RG |
1174 | debug("VLAN packet received\n"); |
1175 | ||
a3d991bd WD |
1176 | /* too small packet? */ |
1177 | if (len < VLAN_ETHER_HDR_SIZE) | |
1178 | return; | |
1179 | ||
1180 | /* if no VLAN active */ | |
1181 | if ((ntohs(NetOurVLAN) & VLAN_IDMASK) == VLAN_NONE | |
643d1ab2 | 1182 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1183 | && iscdp == 0 |
1184 | #endif | |
1185 | ) | |
1186 | return; | |
1187 | ||
1188 | cti = ntohs(vet->vet_tag); | |
1189 | vlanid = cti & VLAN_IDMASK; | |
1190 | x = ntohs(vet->vet_type); | |
1191 | ||
1192 | ip = (IP_t *)(inpkt + VLAN_ETHER_HDR_SIZE); | |
1193 | len -= VLAN_ETHER_HDR_SIZE; | |
2d966958 WD |
1194 | } |
1195 | ||
0ebf04c6 | 1196 | debug("Receive from protocol 0x%x\n", x); |
2d966958 | 1197 | |
643d1ab2 | 1198 | #if defined(CONFIG_CMD_CDP) |
a3d991bd WD |
1199 | if (iscdp) { |
1200 | CDPHandler((uchar *)ip, len); | |
1201 | return; | |
1202 | } | |
1203 | #endif | |
1204 | ||
1205 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { | |
1206 | if (vlanid == VLAN_NONE) | |
1207 | vlanid = (mynvlanid & VLAN_IDMASK); | |
1208 | /* not matched? */ | |
1209 | if (vlanid != (myvlanid & VLAN_IDMASK)) | |
1210 | return; | |
1211 | } | |
1212 | ||
2d966958 WD |
1213 | switch (x) { |
1214 | ||
1215 | case PROT_ARP: | |
1216 | /* | |
1217 | * We have to deal with two types of ARP packets: | |
8bde7f77 WD |
1218 | * - REQUEST packets will be answered by sending our |
1219 | * IP address - if we know it. | |
1220 | * - REPLY packates are expected only after we asked | |
1221 | * for the TFTP server's or the gateway's ethernet | |
1222 | * address; so if we receive such a packet, we set | |
1223 | * the server ethernet address | |
2d966958 | 1224 | */ |
0ebf04c6 RG |
1225 | debug("Got ARP\n"); |
1226 | ||
2d966958 WD |
1227 | arp = (ARP_t *)ip; |
1228 | if (len < ARP_HDR_SIZE) { | |
1229 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1230 | return; | |
1231 | } | |
1232 | if (ntohs(arp->ar_hrd) != ARP_ETHER) { | |
1233 | return; | |
1234 | } | |
1235 | if (ntohs(arp->ar_pro) != PROT_IP) { | |
1236 | return; | |
1237 | } | |
1238 | if (arp->ar_hln != 6) { | |
1239 | return; | |
1240 | } | |
1241 | if (arp->ar_pln != 4) { | |
1242 | return; | |
1243 | } | |
1244 | ||
1245 | if (NetOurIP == 0) { | |
1246 | return; | |
1247 | } | |
1248 | ||
1249 | if (NetReadIP(&arp->ar_data[16]) != NetOurIP) { | |
1250 | return; | |
1251 | } | |
1252 | ||
1253 | switch (ntohs(arp->ar_op)) { | |
1254 | case ARPOP_REQUEST: /* reply with our IP address */ | |
0ebf04c6 | 1255 | debug("Got ARP REQUEST, return our IP\n"); |
a3d991bd WD |
1256 | pkt = (uchar *)et; |
1257 | pkt += NetSetEther(pkt, et->et_src, PROT_ARP); | |
2d966958 WD |
1258 | arp->ar_op = htons(ARPOP_REPLY); |
1259 | memcpy (&arp->ar_data[10], &arp->ar_data[0], 6); | |
1260 | NetCopyIP(&arp->ar_data[16], &arp->ar_data[6]); | |
1261 | memcpy (&arp->ar_data[ 0], NetOurEther, 6); | |
1262 | NetCopyIP(&arp->ar_data[ 6], &NetOurIP); | |
a3d991bd | 1263 | (void) eth_send((uchar *)et, (pkt - (uchar *)et) + ARP_HDR_SIZE); |
2d966958 | 1264 | return; |
73a8b27c WD |
1265 | |
1266 | case ARPOP_REPLY: /* arp reply */ | |
1267 | /* are we waiting for a reply */ | |
1268 | if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC) | |
1269 | break; | |
97cfe861 RG |
1270 | |
1271 | #ifdef CONFIG_KEEP_SERVERADDR | |
1272 | if (NetServerIP == NetArpWaitPacketIP) { | |
1273 | char buf[20]; | |
1274 | sprintf(buf, "%pM", arp->ar_data); | |
1275 | setenv("serveraddr", buf); | |
1276 | } | |
1277 | #endif | |
1278 | ||
0ebf04c6 | 1279 | debug("Got ARP REPLY, set server/gtwy eth addr (%pM)\n", |
95823ca0 | 1280 | arp->ar_data); |
73a8b27c WD |
1281 | |
1282 | tmp = NetReadIP(&arp->ar_data[6]); | |
1283 | ||
1284 | /* matched waiting packet's address */ | |
1285 | if (tmp == NetArpWaitReplyIP) { | |
0ebf04c6 | 1286 | debug("Got it\n"); |
73a8b27c WD |
1287 | /* save address for later use */ |
1288 | memcpy(NetArpWaitPacketMAC, &arp->ar_data[0], 6); | |
1289 | ||
68ceb29e WD |
1290 | #ifdef CONFIG_NETCONSOLE |
1291 | (*packetHandler)(0,0,0,0); | |
1292 | #endif | |
73a8b27c WD |
1293 | /* modify header, and transmit it */ |
1294 | memcpy(((Ethernet_t *)NetArpWaitTxPacket)->et_dest, NetArpWaitPacketMAC, 6); | |
1295 | (void) eth_send(NetArpWaitTxPacket, NetArpWaitTxPacketSize); | |
1296 | ||
1297 | /* no arp request pending now */ | |
1298 | NetArpWaitPacketIP = 0; | |
1299 | NetArpWaitTxPacketSize = 0; | |
1300 | NetArpWaitPacketMAC = NULL; | |
1301 | ||
1302 | } | |
2d966958 WD |
1303 | return; |
1304 | default: | |
0ebf04c6 | 1305 | debug("Unexpected ARP opcode 0x%x\n", ntohs(arp->ar_op)); |
2d966958 WD |
1306 | return; |
1307 | } | |
289f932c | 1308 | break; |
2d966958 WD |
1309 | |
1310 | case PROT_RARP: | |
0ebf04c6 | 1311 | debug("Got RARP\n"); |
2d966958 WD |
1312 | arp = (ARP_t *)ip; |
1313 | if (len < ARP_HDR_SIZE) { | |
1314 | printf("bad length %d < %d\n", len, ARP_HDR_SIZE); | |
1315 | return; | |
1316 | } | |
1317 | ||
1318 | if ((ntohs(arp->ar_op) != RARPOP_REPLY) || | |
1319 | (ntohs(arp->ar_hrd) != ARP_ETHER) || | |
1320 | (ntohs(arp->ar_pro) != PROT_IP) || | |
1321 | (arp->ar_hln != 6) || (arp->ar_pln != 4)) { | |
1322 | ||
4b9206ed | 1323 | puts ("invalid RARP header\n"); |
2d966958 WD |
1324 | } else { |
1325 | NetCopyIP(&NetOurIP, &arp->ar_data[16]); | |
3d3befa7 WD |
1326 | if (NetServerIP == 0) |
1327 | NetCopyIP(&NetServerIP, &arp->ar_data[ 6]); | |
2d966958 WD |
1328 | memcpy (NetServerEther, &arp->ar_data[ 0], 6); |
1329 | ||
1330 | (*packetHandler)(0,0,0,0); | |
1331 | } | |
1332 | break; | |
1333 | ||
1334 | case PROT_IP: | |
0ebf04c6 | 1335 | debug("Got IP\n"); |
2d966958 | 1336 | if (len < IP_HDR_SIZE) { |
0ebf04c6 | 1337 | debug("len bad %d < %lu\n", len, (ulong)IP_HDR_SIZE); |
2d966958 WD |
1338 | return; |
1339 | } | |
1340 | if (len < ntohs(ip->ip_len)) { | |
1341 | printf("len bad %d < %d\n", len, ntohs(ip->ip_len)); | |
1342 | return; | |
1343 | } | |
1344 | len = ntohs(ip->ip_len); | |
0ebf04c6 RG |
1345 | debug("len=%d, v=%02x\n", len, ip->ip_hl_v & 0xff); |
1346 | ||
2d966958 WD |
1347 | if ((ip->ip_hl_v & 0xf0) != 0x40) { |
1348 | return; | |
1349 | } | |
d32c5be5 PT |
1350 | /* Can't deal with fragments */ |
1351 | if (ip->ip_off & htons(IP_OFFS | IP_FLAGS_MFRAG)) { | |
2d966958 WD |
1352 | return; |
1353 | } | |
6b52cfe1 RB |
1354 | /* can't deal with headers > 20 bytes */ |
1355 | if ((ip->ip_hl_v & 0x0f) > 0x05) { | |
1356 | return; | |
1357 | } | |
2d966958 | 1358 | if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2)) { |
4b9206ed | 1359 | puts ("checksum bad\n"); |
2d966958 WD |
1360 | return; |
1361 | } | |
1362 | tmp = NetReadIP(&ip->ip_dst); | |
1363 | if (NetOurIP && tmp != NetOurIP && tmp != 0xFFFFFFFF) { | |
53a5c424 | 1364 | #ifdef CONFIG_MCAST_TFTP |
85eb5caf | 1365 | if (Mcast_addr != tmp) |
53a5c424 | 1366 | #endif |
2d966958 WD |
1367 | return; |
1368 | } | |
1369 | /* | |
1370 | * watch for ICMP host redirects | |
1371 | * | |
8bde7f77 WD |
1372 | * There is no real handler code (yet). We just watch |
1373 | * for ICMP host redirect messages. In case anybody | |
1374 | * sees these messages: please contact me | |
1375 | * (wd@denx.de), or - even better - send me the | |
1376 | * necessary fixes :-) | |
2d966958 | 1377 | * |
8bde7f77 WD |
1378 | * Note: in all cases where I have seen this so far |
1379 | * it was a problem with the router configuration, | |
1380 | * for instance when a router was configured in the | |
1381 | * BOOTP reply, but the TFTP server was on the same | |
1382 | * subnet. So this is probably a warning that your | |
1383 | * configuration might be wrong. But I'm not really | |
1384 | * sure if there aren't any other situations. | |
2d966958 WD |
1385 | */ |
1386 | if (ip->ip_p == IPPROTO_ICMP) { | |
1387 | ICMP_t *icmph = (ICMP_t *)&(ip->udp_src); | |
1388 | ||
73a8b27c WD |
1389 | switch (icmph->type) { |
1390 | case ICMP_REDIRECT: | |
90dc6704 WD |
1391 | if (icmph->code != ICMP_REDIR_HOST) |
1392 | return; | |
b6446b67 | 1393 | printf (" ICMP Host Redirect to %pI4 ", &icmph->un.gateway); |
8534bf9a | 1394 | return; |
643d1ab2 | 1395 | #if defined(CONFIG_CMD_PING) |
73a8b27c WD |
1396 | case ICMP_ECHO_REPLY: |
1397 | /* | |
1398 | * IP header OK. Pass the packet to the current handler. | |
1399 | */ | |
1400 | /* XXX point to ip packet */ | |
1401 | (*packetHandler)((uchar *)ip, 0, 0, 0); | |
8534bf9a | 1402 | return; |
83853178 | 1403 | case ICMP_ECHO_REQUEST: |
0ebf04c6 | 1404 | debug("Got ICMP ECHO REQUEST, return %d bytes \n", |
83853178 | 1405 | ETHER_HDR_SIZE + len); |
0ebf04c6 | 1406 | |
83853178 ES |
1407 | memcpy (&et->et_dest[0], &et->et_src[0], 6); |
1408 | memcpy (&et->et_src[ 0], NetOurEther, 6); | |
1409 | ||
1410 | ip->ip_sum = 0; | |
1411 | ip->ip_off = 0; | |
1412 | NetCopyIP((void*)&ip->ip_dst, &ip->ip_src); | |
1413 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); | |
1414 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP >> 1); | |
1415 | ||
1416 | icmph->type = ICMP_ECHO_REPLY; | |
1417 | icmph->checksum = 0; | |
1418 | icmph->checksum = ~NetCksum((uchar *)icmph, | |
1419 | (len - IP_HDR_SIZE_NO_UDP) >> 1); | |
1420 | (void) eth_send((uchar *)et, ETHER_HDR_SIZE + len); | |
1421 | return; | |
73a8b27c WD |
1422 | #endif |
1423 | default: | |
1424 | return; | |
1425 | } | |
2d966958 WD |
1426 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
1427 | return; | |
1428 | } | |
1429 | ||
8534bf9a SR |
1430 | #ifdef CONFIG_UDP_CHECKSUM |
1431 | if (ip->udp_xsum != 0) { | |
b2f50807 | 1432 | ulong xsum; |
8534bf9a SR |
1433 | ushort *sumptr; |
1434 | ushort sumlen; | |
1435 | ||
1436 | xsum = ip->ip_p; | |
1437 | xsum += (ntohs(ip->udp_len)); | |
1438 | xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; | |
1439 | xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; | |
1440 | xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; | |
1441 | xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; | |
1442 | ||
1443 | sumlen = ntohs(ip->udp_len); | |
1444 | sumptr = (ushort *) &(ip->udp_src); | |
1445 | ||
1446 | while (sumlen > 1) { | |
b2f50807 | 1447 | ushort sumdata; |
8534bf9a SR |
1448 | |
1449 | sumdata = *sumptr++; | |
1450 | xsum += ntohs(sumdata); | |
1451 | sumlen -= 2; | |
1452 | } | |
1453 | if (sumlen > 0) { | |
b2f50807 | 1454 | ushort sumdata; |
8534bf9a SR |
1455 | |
1456 | sumdata = *(unsigned char *) sumptr; | |
b2f50807 | 1457 | sumdata = (sumdata << 8) & 0xff00; |
8534bf9a SR |
1458 | xsum += sumdata; |
1459 | } | |
1460 | while ((xsum >> 16) != 0) { | |
b2f50807 | 1461 | xsum = (xsum & 0x0000ffff) + ((xsum >> 16) & 0x0000ffff); |
8534bf9a SR |
1462 | } |
1463 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { | |
9b55a253 WD |
1464 | printf(" UDP wrong checksum %08lx %08x\n", |
1465 | xsum, ntohs(ip->udp_xsum)); | |
8534bf9a SR |
1466 | return; |
1467 | } | |
1468 | } | |
1469 | #endif | |
1470 | ||
53a5c424 | 1471 | |
68ceb29e WD |
1472 | #ifdef CONFIG_NETCONSOLE |
1473 | nc_input_packet((uchar *)ip +IP_HDR_SIZE, | |
1474 | ntohs(ip->udp_dst), | |
1475 | ntohs(ip->udp_src), | |
1476 | ntohs(ip->udp_len) - 8); | |
1477 | #endif | |
2d966958 WD |
1478 | /* |
1479 | * IP header OK. Pass the packet to the current handler. | |
1480 | */ | |
1481 | (*packetHandler)((uchar *)ip +IP_HDR_SIZE, | |
1482 | ntohs(ip->udp_dst), | |
1483 | ntohs(ip->udp_src), | |
1484 | ntohs(ip->udp_len) - 8); | |
2d966958 WD |
1485 | break; |
1486 | } | |
1487 | } | |
1488 | ||
1489 | ||
1490 | /**********************************************************************/ | |
1491 | ||
1492 | static int net_check_prereq (proto_t protocol) | |
1493 | { | |
1494 | switch (protocol) { | |
6e592385 | 1495 | /* Fall through */ |
643d1ab2 | 1496 | #if defined(CONFIG_CMD_PING) |
73a8b27c | 1497 | case PING: |
6e592385 WD |
1498 | if (NetPingIP == 0) { |
1499 | puts ("*** ERROR: ping address not given\n"); | |
1500 | return (1); | |
1501 | } | |
1502 | goto common; | |
cbd8a35c | 1503 | #endif |
643d1ab2 | 1504 | #if defined(CONFIG_CMD_SNTP) |
ea287deb WD |
1505 | case SNTP: |
1506 | if (NetNtpServerIP == 0) { | |
1507 | puts ("*** ERROR: NTP server address not given\n"); | |
1508 | return (1); | |
1509 | } | |
1510 | goto common; | |
1511 | #endif | |
1a32bf41 RG |
1512 | #if defined(CONFIG_CMD_DNS) |
1513 | case DNS: | |
1514 | if (NetOurDNSIP == 0) { | |
1515 | puts("*** ERROR: DNS server address not given\n"); | |
1516 | return 1; | |
1517 | } | |
1518 | goto common; | |
1519 | #endif | |
643d1ab2 | 1520 | #if defined(CONFIG_CMD_NFS) |
cbd8a35c | 1521 | case NFS: |
73a8b27c | 1522 | #endif |
68ceb29e | 1523 | case NETCONS: |
2d966958 | 1524 | case TFTP: |
6e592385 WD |
1525 | if (NetServerIP == 0) { |
1526 | puts ("*** ERROR: `serverip' not set\n"); | |
1527 | return (1); | |
1528 | } | |
643d1ab2 | 1529 | #if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) |
b2f50807 | 1530 | common: |
73a8b27c WD |
1531 | #endif |
1532 | ||
6e592385 WD |
1533 | if (NetOurIP == 0) { |
1534 | puts ("*** ERROR: `ipaddr' not set\n"); | |
1535 | return (1); | |
1536 | } | |
1537 | /* Fall through */ | |
2d966958 WD |
1538 | |
1539 | case DHCP: | |
1540 | case RARP: | |
1541 | case BOOTP: | |
a3d991bd | 1542 | case CDP: |
6e592385 | 1543 | if (memcmp (NetOurEther, "\0\0\0\0\0\0", 6) == 0) { |
2d966958 | 1544 | #ifdef CONFIG_NET_MULTI |
6e592385 WD |
1545 | extern int eth_get_dev_index (void); |
1546 | int num = eth_get_dev_index (); | |
2d966958 | 1547 | |
6e592385 WD |
1548 | switch (num) { |
1549 | case -1: | |
2d966958 WD |
1550 | puts ("*** ERROR: No ethernet found.\n"); |
1551 | return (1); | |
6e592385 | 1552 | case 0: |
2d966958 WD |
1553 | puts ("*** ERROR: `ethaddr' not set\n"); |
1554 | break; | |
6e592385 | 1555 | default: |
8bde7f77 | 1556 | printf ("*** ERROR: `eth%daddr' not set\n", |
2d966958 WD |
1557 | num); |
1558 | break; | |
6e592385 | 1559 | } |
2d966958 | 1560 | |
6e592385 WD |
1561 | NetStartAgain (); |
1562 | return (2); | |
2d966958 | 1563 | #else |
6e592385 WD |
1564 | puts ("*** ERROR: `ethaddr' not set\n"); |
1565 | return (1); | |
2d966958 | 1566 | #endif |
6e592385 WD |
1567 | } |
1568 | /* Fall through */ | |
1569 | default: | |
1570 | return (0); | |
2d966958 | 1571 | } |
6e592385 | 1572 | return (0); /* OK */ |
2d966958 WD |
1573 | } |
1574 | /**********************************************************************/ | |
1575 | ||
1576 | int | |
1577 | NetCksumOk(uchar * ptr, int len) | |
1578 | { | |
1579 | return !((NetCksum(ptr, len) + 1) & 0xfffe); | |
1580 | } | |
1581 | ||
1582 | ||
1583 | unsigned | |
1584 | NetCksum(uchar * ptr, int len) | |
1585 | { | |
1586 | ulong xsum; | |
9d2a873b | 1587 | ushort *p = (ushort *)ptr; |
2d966958 WD |
1588 | |
1589 | xsum = 0; | |
1590 | while (len-- > 0) | |
7bc5ee07 | 1591 | xsum += *p++; |
2d966958 WD |
1592 | xsum = (xsum & 0xffff) + (xsum >> 16); |
1593 | xsum = (xsum & 0xffff) + (xsum >> 16); | |
1594 | return (xsum & 0xffff); | |
1595 | } | |
1596 | ||
a3d991bd WD |
1597 | int |
1598 | NetEthHdrSize(void) | |
1599 | { | |
1600 | ushort myvlanid; | |
2d966958 | 1601 | |
a3d991bd WD |
1602 | myvlanid = ntohs(NetOurVLAN); |
1603 | if (myvlanid == (ushort)-1) | |
1604 | myvlanid = VLAN_NONE; | |
1605 | ||
1606 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : VLAN_ETHER_HDR_SIZE; | |
1607 | } | |
1608 | ||
1609 | int | |
2d966958 WD |
1610 | NetSetEther(volatile uchar * xet, uchar * addr, uint prot) |
1611 | { | |
1612 | Ethernet_t *et = (Ethernet_t *)xet; | |
a3d991bd WD |
1613 | ushort myvlanid; |
1614 | ||
1615 | myvlanid = ntohs(NetOurVLAN); | |
1616 | if (myvlanid == (ushort)-1) | |
1617 | myvlanid = VLAN_NONE; | |
2d966958 WD |
1618 | |
1619 | memcpy (et->et_dest, addr, 6); | |
1620 | memcpy (et->et_src, NetOurEther, 6); | |
a3d991bd | 1621 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
2d966958 | 1622 | et->et_protlen = htons(prot); |
a3d991bd WD |
1623 | return ETHER_HDR_SIZE; |
1624 | } else { | |
1625 | VLAN_Ethernet_t *vet = (VLAN_Ethernet_t *)xet; | |
2d966958 | 1626 | |
a3d991bd WD |
1627 | vet->vet_vlan_type = htons(PROT_VLAN); |
1628 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); | |
1629 | vet->vet_type = htons(prot); | |
1630 | return VLAN_ETHER_HDR_SIZE; | |
1631 | } | |
1632 | } | |
2d966958 WD |
1633 | |
1634 | void | |
1635 | NetSetIP(volatile uchar * xip, IPaddr_t dest, int dport, int sport, int len) | |
1636 | { | |
af8626e0 | 1637 | IP_t *ip = (IP_t *)xip; |
2d966958 WD |
1638 | |
1639 | /* | |
1640 | * If the data is an odd number of bytes, zero the | |
1641 | * byte after the last byte so that the checksum | |
1642 | * will work. | |
1643 | */ | |
1644 | if (len & 1) | |
1645 | xip[IP_HDR_SIZE + len] = 0; | |
1646 | ||
1647 | /* | |
1648 | * Construct an IP and UDP header. | |
6e592385 | 1649 | * (need to set no fragment bit - XXX) |
2d966958 WD |
1650 | */ |
1651 | ip->ip_hl_v = 0x45; /* IP_HDR_SIZE / 4 (not including UDP) */ | |
1652 | ip->ip_tos = 0; | |
1653 | ip->ip_len = htons(IP_HDR_SIZE + len); | |
1654 | ip->ip_id = htons(NetIPID++); | |
e0c07b86 | 1655 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
2d966958 WD |
1656 | ip->ip_ttl = 255; |
1657 | ip->ip_p = 17; /* UDP */ | |
1658 | ip->ip_sum = 0; | |
1659 | NetCopyIP((void*)&ip->ip_src, &NetOurIP); /* already in network byte order */ | |
1660 | NetCopyIP((void*)&ip->ip_dst, &dest); /* - "" - */ | |
1661 | ip->udp_src = htons(sport); | |
1662 | ip->udp_dst = htons(dport); | |
1663 | ip->udp_len = htons(8 + len); | |
1664 | ip->udp_xsum = 0; | |
1665 | ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE_NO_UDP / 2); | |
1666 | } | |
1667 | ||
77ddac94 | 1668 | void copy_filename (char *dst, char *src, int size) |
2d966958 WD |
1669 | { |
1670 | if (*src && (*src == '"')) { | |
1671 | ++src; | |
1672 | --size; | |
1673 | } | |
1674 | ||
1675 | while ((--size > 0) && *src && (*src != '"')) { | |
1676 | *dst++ = *src++; | |
1677 | } | |
1678 | *dst = '\0'; | |
1679 | } | |
1680 | ||
610f2e9c | 1681 | #endif |
2d966958 | 1682 | |
1a32bf41 RG |
1683 | #if defined(CONFIG_CMD_NFS) || defined(CONFIG_CMD_SNTP) || defined(CONFIG_CMD_DNS) |
1684 | /* | |
1685 | * make port a little random, but use something trivial to compute | |
1686 | */ | |
1687 | unsigned int random_port(void) | |
1688 | { | |
1689 | return 1024 + (get_timer(0) % 0x8000);; | |
1690 | } | |
1691 | #endif | |
1692 | ||
2d966958 WD |
1693 | void ip_to_string (IPaddr_t x, char *s) |
1694 | { | |
a3d991bd WD |
1695 | x = ntohl (x); |
1696 | sprintf (s, "%d.%d.%d.%d", | |
1697 | (int) ((x >> 24) & 0xff), | |
1698 | (int) ((x >> 16) & 0xff), | |
1699 | (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) | |
6e592385 | 1700 | ); |
2d966958 WD |
1701 | } |
1702 | ||
73a8b27c | 1703 | IPaddr_t string_to_ip(char *s) |
2d966958 WD |
1704 | { |
1705 | IPaddr_t addr; | |
73a8b27c | 1706 | char *e; |
2d966958 WD |
1707 | int i; |
1708 | ||
73a8b27c WD |
1709 | if (s == NULL) |
1710 | return(0); | |
2d966958 WD |
1711 | |
1712 | for (addr=0, i=0; i<4; ++i) { | |
1713 | ulong val = s ? simple_strtoul(s, &e, 10) : 0; | |
1714 | addr <<= 8; | |
1715 | addr |= (val & 0xFF); | |
1716 | if (s) { | |
1717 | s = (*e) ? e+1 : e; | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | return (htonl(addr)); | |
1722 | } | |
73a8b27c | 1723 | |
a3d991bd WD |
1724 | void VLAN_to_string(ushort x, char *s) |
1725 | { | |
1726 | x = ntohs(x); | |
1727 | ||
1728 | if (x == (ushort)-1) | |
1729 | x = VLAN_NONE; | |
1730 | ||
1731 | if (x == VLAN_NONE) | |
1732 | strcpy(s, "none"); | |
1733 | else | |
1734 | sprintf(s, "%d", x & VLAN_IDMASK); | |
1735 | } | |
1736 | ||
1737 | ushort string_to_VLAN(char *s) | |
1738 | { | |
1739 | ushort id; | |
1740 | ||
1741 | if (s == NULL) | |
b9711de1 | 1742 | return htons(VLAN_NONE); |
a3d991bd WD |
1743 | |
1744 | if (*s < '0' || *s > '9') | |
1745 | id = VLAN_NONE; | |
1746 | else | |
1747 | id = (ushort)simple_strtoul(s, NULL, 10); | |
1748 | ||
b9711de1 | 1749 | return htons(id); |
a3d991bd WD |
1750 | } |
1751 | ||
73a8b27c WD |
1752 | IPaddr_t getenv_IPaddr (char *var) |
1753 | { | |
1754 | return (string_to_ip(getenv(var))); | |
1755 | } | |
a3d991bd WD |
1756 | |
1757 | ushort getenv_VLAN(char *var) | |
1758 | { | |
1759 | return (string_to_VLAN(getenv(var))); | |
1760 | } |