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Commit | Line | Data |
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3861aa5c WD |
1 | /* |
2 | * Based on LiMon - BOOTP. | |
3 | * | |
4 | * Copyright 1994, 1995, 2000 Neil Russell. | |
5 | * (See License) | |
6 | * Copyright 2000 Roland Borde | |
7 | * Copyright 2000 Paolo Scaffardi | |
232c150a | 8 | * Copyright 2000-2004 Wolfgang Denk, wd@denx.de |
3861aa5c WD |
9 | */ |
10 | ||
3861aa5c WD |
11 | #include <common.h> |
12 | #include <command.h> | |
13 | #include <net.h> | |
14 | #include "bootp.h" | |
15 | #include "tftp.h" | |
232c150a | 16 | #include "nfs.h" |
3861aa5c WD |
17 | #ifdef CONFIG_STATUS_LED |
18 | #include <status_led.h> | |
19 | #endif | |
20 | ||
232c150a | 21 | #define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ |
3861aa5c | 22 | |
49f3bdbb | 23 | #define TIMEOUT 5000UL /* Milliseconds before trying BOOTP again */ |
232c150a | 24 | #ifndef CONFIG_NET_RETRY_COUNT |
3861aa5c WD |
25 | # define TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
26 | #else | |
232c150a | 27 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) |
3861aa5c WD |
28 | #endif |
29 | ||
30 | #define PORT_BOOTPS 67 /* BOOTP server UDP port */ | |
31 | #define PORT_BOOTPC 68 /* BOOTP client UDP port */ | |
32 | ||
33 | #ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ | |
232c150a | 34 | #define CONFIG_DHCP_MIN_EXT_LEN 64 |
3861aa5c WD |
35 | #endif |
36 | ||
37 | ulong BootpID; | |
38 | int BootpTry; | |
39 | #ifdef CONFIG_BOOTP_RANDOM_DELAY | |
40 | ulong seed1, seed2; | |
41 | #endif | |
42 | ||
643d1ab2 | 43 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 44 | dhcp_state_t dhcp_state = INIT; |
682011ff | 45 | unsigned long dhcp_leasetime = 0; |
759a51b4 | 46 | IPaddr_t NetDHCPServerIP = 0; |
3861aa5c WD |
47 | static void DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len); |
48 | ||
49 | /* For Debug */ | |
3e38691e WD |
50 | #if 0 |
51 | static char *dhcpmsg2str(int type) | |
3861aa5c WD |
52 | { |
53 | switch (type) { | |
232c150a WD |
54 | case 1: return "DHCPDISCOVER"; break; |
55 | case 2: return "DHCPOFFER"; break; | |
56 | case 3: return "DHCPREQUEST"; break; | |
57 | case 4: return "DHCPDECLINE"; break; | |
58 | case 5: return "DHCPACK"; break; | |
59 | case 6: return "DHCPNACK"; break; | |
60 | case 7: return "DHCPRELEASE"; break; | |
3861aa5c WD |
61 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
62 | } | |
63 | } | |
3e38691e | 64 | #endif |
3861aa5c | 65 | |
1fe80d79 | 66 | #if defined(CONFIG_BOOTP_VENDOREX) |
3861aa5c WD |
67 | extern u8 *dhcp_vendorex_prep (u8 *e); /*rtn new e after add own opts. */ |
68 | extern u8 *dhcp_vendorex_proc (u8 *e); /*rtn next e if mine,else NULL */ | |
69 | #endif | |
70 | ||
610f2e9c | 71 | #endif |
3861aa5c WD |
72 | |
73 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) | |
74 | { | |
75 | Bootp_t *bp = (Bootp_t *) pkt; | |
76 | int retval = 0; | |
77 | ||
78 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
79 | retval = -1; | |
80 | else if (len < sizeof (Bootp_t) - OPT_SIZE) | |
81 | retval = -2; | |
82 | else if (bp->bp_op != OP_BOOTREQUEST && | |
83 | bp->bp_op != OP_BOOTREPLY && | |
84 | bp->bp_op != DHCP_OFFER && | |
85 | bp->bp_op != DHCP_ACK && | |
86 | bp->bp_op != DHCP_NAK ) { | |
87 | retval = -3; | |
88 | } | |
89 | else if (bp->bp_htype != HWT_ETHER) | |
90 | retval = -4; | |
91 | else if (bp->bp_hlen != HWL_ETHER) | |
92 | retval = -5; | |
93 | else if (NetReadLong((ulong*)&bp->bp_id) != BootpID) { | |
94 | retval = -6; | |
95 | } | |
96 | ||
0ebf04c6 | 97 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
98 | |
99 | return retval; | |
100 | } | |
101 | ||
102 | /* | |
103 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
104 | */ | |
3e38691e | 105 | static void BootpCopyNetParams(Bootp_t *bp) |
3861aa5c | 106 | { |
3d3befa7 WD |
107 | IPaddr_t tmp_ip; |
108 | ||
3861aa5c | 109 | NetCopyIP(&NetOurIP, &bp->bp_yiaddr); |
5d110f0a | 110 | #if !defined(CONFIG_BOOTP_SERVERIP) |
3d3befa7 WD |
111 | NetCopyIP(&tmp_ip, &bp->bp_siaddr); |
112 | if (tmp_ip != 0) | |
113 | NetCopyIP(&NetServerIP, &bp->bp_siaddr); | |
d9bec9f4 | 114 | memcpy (NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6); |
5d110f0a | 115 | #endif |
3d3befa7 WD |
116 | if (strlen(bp->bp_file) > 0) |
117 | copy_filename (BootFile, bp->bp_file, sizeof(BootFile)); | |
3861aa5c | 118 | |
0ebf04c6 | 119 | debug("Bootfile: %s\n", BootFile); |
3861aa5c WD |
120 | |
121 | /* Propagate to environment: | |
8bde7f77 | 122 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
123 | * not contain a new value |
124 | */ | |
125 | if (*BootFile) { | |
126 | setenv ("bootfile", BootFile); | |
127 | } | |
128 | } | |
129 | ||
130 | static int truncate_sz (const char *name, int maxlen, int curlen) | |
131 | { | |
132 | if (curlen >= maxlen) { | |
133 | printf("*** WARNING: %s is too long (%d - max: %d) - truncated\n", | |
134 | name, curlen, maxlen); | |
135 | curlen = maxlen - 1; | |
136 | } | |
137 | return (curlen); | |
138 | } | |
139 | ||
643d1ab2 | 140 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 141 | |
232c150a | 142 | static void BootpVendorFieldProcess (u8 * ext) |
3861aa5c | 143 | { |
232c150a | 144 | int size = *(ext + 1); |
3861aa5c | 145 | |
0ebf04c6 | 146 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
232c150a | 147 | *(ext + 1)); |
3861aa5c | 148 | |
232c150a | 149 | NetBootFileSize = 0; |
3861aa5c | 150 | |
232c150a WD |
151 | switch (*ext) { |
152 | /* Fixed length fields */ | |
1aeed8d7 | 153 | case 1: /* Subnet mask */ |
3861aa5c | 154 | if (NetOurSubnetMask == 0) |
232c150a | 155 | NetCopyIP (&NetOurSubnetMask, (IPaddr_t *) (ext + 2)); |
3861aa5c | 156 | break; |
1aeed8d7 | 157 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 158 | break; |
232c150a | 159 | /* Variable length fields */ |
1aeed8d7 | 160 | case 3: /* Gateways list */ |
3861aa5c | 161 | if (NetOurGatewayIP == 0) { |
232c150a | 162 | NetCopyIP (&NetOurGatewayIP, (IPaddr_t *) (ext + 2)); |
3861aa5c WD |
163 | } |
164 | break; | |
1aeed8d7 | 165 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 166 | break; |
1aeed8d7 | 167 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
168 | break; |
169 | case 6: | |
170 | if (NetOurDNSIP == 0) { | |
232c150a | 171 | NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2)); |
3861aa5c | 172 | } |
1fe80d79 | 173 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 | 174 | if ((NetOurDNS2IP == 0) && (size > 4)) { |
232c150a | 175 | NetCopyIP (&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4)); |
fe389a82 SR |
176 | } |
177 | #endif | |
3861aa5c | 178 | break; |
1aeed8d7 | 179 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 180 | break; |
1aeed8d7 | 181 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 182 | break; |
1aeed8d7 | 183 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 184 | break; |
1aeed8d7 | 185 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 186 | break; |
1aeed8d7 | 187 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 188 | break; |
1aeed8d7 | 189 | case 12: /* Host name */ |
3861aa5c | 190 | if (NetOurHostName[0] == 0) { |
232c150a WD |
191 | size = truncate_sz ("Host Name", sizeof (NetOurHostName), size); |
192 | memcpy (&NetOurHostName, ext + 2, size); | |
193 | NetOurHostName[size] = 0; | |
3861aa5c WD |
194 | } |
195 | break; | |
1aeed8d7 | 196 | case 13: /* Boot file size */ |
3861aa5c | 197 | if (size == 2) |
232c150a | 198 | NetBootFileSize = ntohs (*(ushort *) (ext + 2)); |
3861aa5c | 199 | else if (size == 4) |
232c150a | 200 | NetBootFileSize = ntohl (*(ulong *) (ext + 2)); |
3861aa5c | 201 | break; |
1aeed8d7 | 202 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 203 | break; |
1aeed8d7 | 204 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 205 | break; |
1aeed8d7 | 206 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 207 | break; |
1aeed8d7 | 208 | case 17: /* Root path */ |
3861aa5c | 209 | if (NetOurRootPath[0] == 0) { |
232c150a WD |
210 | size = truncate_sz ("Root Path", sizeof (NetOurRootPath), size); |
211 | memcpy (&NetOurRootPath, ext + 2, size); | |
212 | NetOurRootPath[size] = 0; | |
3861aa5c WD |
213 | } |
214 | break; | |
1aeed8d7 | 215 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 216 | /* |
8bde7f77 WD |
217 | * This can be used to send the information of the |
218 | * vendor area in another file that the client can | |
219 | * access via TFTP. | |
3861aa5c WD |
220 | */ |
221 | break; | |
232c150a | 222 | /* IP host layer fields */ |
1aeed8d7 | 223 | case 40: /* NIS Domain name */ |
3861aa5c | 224 | if (NetOurNISDomain[0] == 0) { |
232c150a WD |
225 | size = truncate_sz ("NIS Domain Name", sizeof (NetOurNISDomain), size); |
226 | memcpy (&NetOurNISDomain, ext + 2, size); | |
227 | NetOurNISDomain[size] = 0; | |
3861aa5c WD |
228 | } |
229 | break; | |
232c150a | 230 | /* Application layer fields */ |
1aeed8d7 | 231 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 232 | /* |
8bde7f77 WD |
233 | * Binary information to exchange specific |
234 | * product information. | |
3861aa5c WD |
235 | */ |
236 | break; | |
232c150a WD |
237 | /* Reserved (custom) fields (128..254) */ |
238 | } | |
3861aa5c WD |
239 | } |
240 | ||
232c150a | 241 | static void BootpVendorProcess (u8 * ext, int size) |
3861aa5c | 242 | { |
232c150a | 243 | u8 *end = ext + size; |
3861aa5c | 244 | |
0ebf04c6 | 245 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 246 | |
232c150a WD |
247 | while ((ext < end) && (*ext != 0xff)) { |
248 | if (*ext == 0) { | |
249 | ext++; | |
250 | } else { | |
251 | u8 *opt = ext; | |
252 | ||
253 | ext += ext[1] + 2; | |
254 | if (ext <= end) | |
255 | BootpVendorFieldProcess (opt); | |
256 | } | |
3861aa5c | 257 | } |
3861aa5c | 258 | |
0ebf04c6 | 259 | debug("[BOOTP] Received fields: \n"); |
b6446b67 | 260 | if (NetOurSubnetMask) |
0ebf04c6 | 261 | debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask); |
232c150a | 262 | |
b6446b67 | 263 | if (NetOurGatewayIP) |
0ebf04c6 | 264 | debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP); |
232c150a | 265 | |
0ebf04c6 RG |
266 | if (NetBootFileSize) |
267 | debug("NetBootFileSize : %d\n", NetBootFileSize); | |
3861aa5c | 268 | |
0ebf04c6 RG |
269 | if (NetOurHostName[0]) |
270 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 271 | |
0ebf04c6 RG |
272 | if (NetOurRootPath[0]) |
273 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 274 | |
0ebf04c6 RG |
275 | if (NetOurNISDomain[0]) |
276 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 277 | |
0ebf04c6 RG |
278 | if (NetBootFileSize) |
279 | debug("NetBootFileSize: %d\n", NetBootFileSize); | |
232c150a | 280 | } |
3861aa5c WD |
281 | /* |
282 | * Handle a BOOTP received packet. | |
283 | */ | |
284 | static void | |
285 | BootpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
286 | { | |
287 | Bootp_t *bp; | |
288 | char *s; | |
289 | ||
0ebf04c6 | 290 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3861aa5c WD |
291 | src, dest, len, sizeof (Bootp_t)); |
292 | ||
293 | bp = (Bootp_t *)pkt; | |
294 | ||
232c150a | 295 | if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */ |
3861aa5c WD |
296 | return; |
297 | ||
298 | /* | |
232c150a | 299 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
300 | */ |
301 | #ifdef CONFIG_STATUS_LED | |
302 | status_led_set (STATUS_LED_BOOT, STATUS_LED_OFF); | |
303 | #endif | |
304 | ||
305 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
306 | ||
307 | /* Retrieve extended information (we must parse the vendor area) */ | |
308 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) | |
77ddac94 | 309 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
310 | |
311 | NetSetTimeout(0, (thand_f *)0); | |
312 | ||
0ebf04c6 | 313 | debug("Got good BOOTP\n"); |
3861aa5c | 314 | |
132ba5fd WD |
315 | if ((s = getenv("autoload")) != NULL) { |
316 | if (*s == 'n') { | |
317 | /* | |
318 | * Just use BOOTP to configure system; | |
319 | * Do not use TFTP to load the bootfile. | |
320 | */ | |
321 | NetState = NETLOOP_SUCCESS; | |
322 | return; | |
643d1ab2 | 323 | #if defined(CONFIG_CMD_NFS) |
132ba5fd WD |
324 | } else if (strcmp(s, "NFS") == 0) { |
325 | /* | |
326 | * Use NFS to load the bootfile. | |
327 | */ | |
328 | NfsStart(); | |
329 | return; | |
0e6d798c | 330 | #endif |
132ba5fd | 331 | } |
3861aa5c WD |
332 | } |
333 | ||
73a8b27c | 334 | TftpStart(); |
3861aa5c | 335 | } |
610f2e9c | 336 | #endif |
3861aa5c WD |
337 | |
338 | /* | |
339 | * Timeout on BOOTP/DHCP request. | |
340 | */ | |
341 | static void | |
342 | BootpTimeout(void) | |
343 | { | |
344 | if (BootpTry >= TIMEOUT_COUNT) { | |
345 | puts ("\nRetry count exceeded; starting again\n"); | |
346 | NetStartAgain (); | |
347 | } else { | |
49f3bdbb | 348 | NetSetTimeout (TIMEOUT, BootpTimeout); |
3861aa5c WD |
349 | BootpRequest (); |
350 | } | |
351 | } | |
352 | ||
353 | /* | |
354 | * Initialize BOOTP extension fields in the request. | |
355 | */ | |
643d1ab2 | 356 | #if defined(CONFIG_CMD_DHCP) |
232c150a | 357 | static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP) |
3861aa5c | 358 | { |
232c150a WD |
359 | u8 *start = e; |
360 | u8 *cnt; | |
361 | ||
1fe80d79 | 362 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 363 | u8 *x; |
3861aa5c | 364 | #endif |
1fe80d79 | 365 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 366 | char *hostname; |
fe389a82 | 367 | #endif |
3861aa5c | 368 | |
232c150a WD |
369 | *e++ = 99; /* RFC1048 Magic Cookie */ |
370 | *e++ = 130; | |
371 | *e++ = 83; | |
372 | *e++ = 99; | |
3861aa5c | 373 | |
232c150a WD |
374 | *e++ = 53; /* DHCP Message Type */ |
375 | *e++ = 1; | |
376 | *e++ = message_type; | |
3861aa5c | 377 | |
232c150a WD |
378 | *e++ = 57; /* Maximum DHCP Message Size */ |
379 | *e++ = 2; | |
380 | *e++ = (576 - 312 + OPT_SIZE) >> 8; | |
381 | *e++ = (576 - 312 + OPT_SIZE) & 0xff; | |
3861aa5c | 382 | |
232c150a WD |
383 | if (ServerID) { |
384 | int tmp = ntohl (ServerID); | |
3861aa5c | 385 | |
232c150a WD |
386 | *e++ = 54; /* ServerID */ |
387 | *e++ = 4; | |
388 | *e++ = tmp >> 24; | |
389 | *e++ = tmp >> 16; | |
390 | *e++ = tmp >> 8; | |
391 | *e++ = tmp & 0xff; | |
392 | } | |
3861aa5c | 393 | |
232c150a WD |
394 | if (RequestedIP) { |
395 | int tmp = ntohl (RequestedIP); | |
3861aa5c | 396 | |
232c150a WD |
397 | *e++ = 50; /* Requested IP */ |
398 | *e++ = 4; | |
399 | *e++ = tmp >> 24; | |
400 | *e++ = tmp >> 16; | |
401 | *e++ = tmp >> 8; | |
402 | *e++ = tmp & 0xff; | |
403 | } | |
1fe80d79 | 404 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
232c150a WD |
405 | if ((hostname = getenv ("hostname"))) { |
406 | int hostnamelen = strlen (hostname); | |
407 | ||
408 | *e++ = 12; /* Hostname */ | |
409 | *e++ = hostnamelen; | |
410 | memcpy (e, hostname, hostnamelen); | |
411 | e += hostnamelen; | |
412 | } | |
fe389a82 SR |
413 | #endif |
414 | ||
1fe80d79 | 415 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a WD |
416 | if ((x = dhcp_vendorex_prep (e))) |
417 | return x - start; | |
3861aa5c WD |
418 | #endif |
419 | ||
232c150a WD |
420 | *e++ = 55; /* Parameter Request List */ |
421 | cnt = e++; /* Pointer to count of requested items */ | |
422 | *cnt = 0; | |
1fe80d79 | 423 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
424 | *e++ = 1; /* Subnet Mask */ |
425 | *cnt += 1; | |
3861aa5c | 426 | #endif |
1fe80d79 | 427 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
428 | *e++ = 2; |
429 | *cnt += 1; | |
430 | #endif | |
1fe80d79 | 431 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
432 | *e++ = 3; /* Router Option */ |
433 | *cnt += 1; | |
3861aa5c | 434 | #endif |
1fe80d79 | 435 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
436 | *e++ = 6; /* DNS Server(s) */ |
437 | *cnt += 1; | |
3861aa5c | 438 | #endif |
1fe80d79 | 439 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
440 | *e++ = 12; /* Hostname */ |
441 | *cnt += 1; | |
3861aa5c | 442 | #endif |
1fe80d79 | 443 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
444 | *e++ = 13; /* Boot File Size */ |
445 | *cnt += 1; | |
3861aa5c | 446 | #endif |
1fe80d79 | 447 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
448 | *e++ = 17; /* Boot path */ |
449 | *cnt += 1; | |
3861aa5c | 450 | #endif |
1fe80d79 | 451 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
452 | *e++ = 40; /* NIS Domain name request */ |
453 | *cnt += 1; | |
ea287deb | 454 | #endif |
1fe80d79 | 455 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
456 | *e++ = 42; |
457 | *cnt += 1; | |
3861aa5c | 458 | #endif |
232c150a | 459 | *e++ = 255; /* End of the list */ |
3861aa5c | 460 | |
232c150a | 461 | /* Pad to minimal length */ |
3861aa5c | 462 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
232c150a WD |
463 | while ((e - start) <= CONFIG_DHCP_MIN_EXT_LEN) |
464 | *e++ = 0; | |
3861aa5c WD |
465 | #endif |
466 | ||
232c150a | 467 | return e - start; |
3861aa5c WD |
468 | } |
469 | ||
610f2e9c | 470 | #else |
3861aa5c | 471 | /* |
1fe80d79 | 472 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 473 | */ |
232c150a | 474 | static int BootpExtended (u8 * e) |
3861aa5c | 475 | { |
232c150a | 476 | u8 *start = e; |
3861aa5c | 477 | |
232c150a WD |
478 | *e++ = 99; /* RFC1048 Magic Cookie */ |
479 | *e++ = 130; | |
480 | *e++ = 83; | |
481 | *e++ = 99; | |
3861aa5c | 482 | |
643d1ab2 | 483 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
484 | *e++ = 53; /* DHCP Message Type */ |
485 | *e++ = 1; | |
486 | *e++ = DHCP_DISCOVER; | |
487 | ||
488 | *e++ = 57; /* Maximum DHCP Message Size */ | |
489 | *e++ = 2; | |
490 | *e++ = (576 - 312 + OPT_SIZE) >> 16; | |
491 | *e++ = (576 - 312 + OPT_SIZE) & 0xff; | |
610f2e9c | 492 | #endif |
3861aa5c | 493 | |
1fe80d79 | 494 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
495 | *e++ = 1; /* Subnet mask request */ |
496 | *e++ = 4; | |
497 | e += 4; | |
3861aa5c WD |
498 | #endif |
499 | ||
1fe80d79 | 500 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
501 | *e++ = 3; /* Default gateway request */ |
502 | *e++ = 4; | |
503 | e += 4; | |
3861aa5c WD |
504 | #endif |
505 | ||
1fe80d79 | 506 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
507 | *e++ = 6; /* Domain Name Server */ |
508 | *e++ = 4; | |
509 | e += 4; | |
3861aa5c WD |
510 | #endif |
511 | ||
1fe80d79 | 512 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
513 | *e++ = 12; /* Host name request */ |
514 | *e++ = 32; | |
515 | e += 32; | |
3861aa5c WD |
516 | #endif |
517 | ||
1fe80d79 | 518 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
519 | *e++ = 13; /* Boot file size */ |
520 | *e++ = 2; | |
521 | e += 2; | |
3861aa5c WD |
522 | #endif |
523 | ||
1fe80d79 | 524 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
525 | *e++ = 17; /* Boot path */ |
526 | *e++ = 32; | |
527 | e += 32; | |
3861aa5c WD |
528 | #endif |
529 | ||
1fe80d79 | 530 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
531 | *e++ = 40; /* NIS Domain name request */ |
532 | *e++ = 32; | |
533 | e += 32; | |
3861aa5c WD |
534 | #endif |
535 | ||
232c150a | 536 | *e++ = 255; /* End of the list */ |
3861aa5c | 537 | |
232c150a | 538 | return e - start; |
3861aa5c | 539 | } |
610f2e9c | 540 | #endif |
3861aa5c WD |
541 | |
542 | void | |
543 | BootpRequest (void) | |
544 | { | |
545 | volatile uchar *pkt, *iphdr; | |
546 | Bootp_t *bp; | |
547 | int ext_len, pktlen, iplen; | |
548 | ||
643d1ab2 | 549 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
550 | dhcp_state = INIT; |
551 | #endif | |
552 | ||
553 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
554 | unsigned char bi_enetaddr[6]; | |
555 | int reg; | |
3861aa5c WD |
556 | ulong tst1, tst2, sum, m_mask, m_value = 0; |
557 | ||
558 | if (BootpTry ==0) { | |
559 | /* get our mac */ | |
95823ca0 MF |
560 | eth_getenv_enetaddr("ethaddr", bi_enetaddr); |
561 | ||
0ebf04c6 RG |
562 | debug("BootpRequest => Our Mac: "); |
563 | for (reg=0; reg<6; reg++) | |
564 | debug("%x%c", bi_enetaddr[reg], reg==5 ? '\n' : ':'); | |
3861aa5c WD |
565 | |
566 | /* Mac-Manipulation 2 get seed1 */ | |
567 | tst1=0; | |
568 | tst2=0; | |
569 | for (reg=2; reg<6; reg++) { | |
570 | tst1 = tst1 << 8; | |
571 | tst1 = tst1 | bi_enetaddr[reg]; | |
572 | } | |
573 | for (reg=0; reg<2; reg++) { | |
574 | tst2 = tst2 | bi_enetaddr[reg]; | |
575 | tst2 = tst2 << 8; | |
576 | } | |
577 | ||
578 | seed1 = tst1^tst2; | |
579 | ||
580 | /* Mirror seed1*/ | |
581 | m_mask=0x1; | |
582 | for (reg=1;reg<=32;reg++) { | |
583 | m_value |= (m_mask & seed1); | |
584 | seed1 = seed1 >> 1; | |
585 | m_value = m_value << 1; | |
586 | } | |
587 | seed1 = m_value; | |
588 | seed2 = 0xB78D0945; | |
589 | } | |
590 | ||
591 | /* Random Number Generator */ | |
592 | ||
593 | for (reg=0;reg<=0;reg++) { | |
594 | sum = seed1 + seed2; | |
595 | if (sum < seed1 || sum < seed2) | |
596 | sum++; | |
8bde7f77 | 597 | seed2 = seed1; |
3861aa5c WD |
598 | seed1 = sum; |
599 | ||
600 | if (BootpTry<=2) { /* Start with max 1024 * 1ms */ | |
601 | sum = sum >> (22-BootpTry); | |
602 | } else { /*After 3rd BOOTP request max 8192 * 1ms */ | |
603 | sum = sum >> 19; | |
604 | } | |
605 | } | |
606 | ||
607 | printf ("Random delay: %ld ms...\n", sum); | |
608 | for (reg=0; reg <sum; reg++) { | |
609 | udelay(1000); /*Wait 1ms*/ | |
610 | } | |
611 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ | |
612 | ||
613 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
614 | pkt = NetTxPacket; | |
615 | memset ((void*)pkt, 0, PKTSIZE); | |
616 | ||
a3d991bd | 617 | pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP); |
3861aa5c WD |
618 | |
619 | /* | |
620 | * Next line results in incorrect packet size being transmitted, resulting | |
621 | * in errors in some DHCP servers, reporting missing bytes. Size must be | |
622 | * set in packet header after extension length has been determined. | |
623 | * C. Hallinan, DS4.COM, Inc. | |
624 | */ | |
625 | /* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, sizeof (Bootp_t)); */ | |
626 | iphdr = pkt; /* We need this later for NetSetIP() */ | |
627 | pkt += IP_HDR_SIZE; | |
628 | ||
629 | bp = (Bootp_t *)pkt; | |
630 | bp->bp_op = OP_BOOTREQUEST; | |
631 | bp->bp_htype = HWT_ETHER; | |
632 | bp->bp_hlen = HWL_ETHER; | |
633 | bp->bp_hops = 0; | |
49f3bdbb | 634 | bp->bp_secs = htons(get_timer(0) / 1000); |
3861aa5c WD |
635 | NetWriteIP(&bp->bp_ciaddr, 0); |
636 | NetWriteIP(&bp->bp_yiaddr, 0); | |
637 | NetWriteIP(&bp->bp_siaddr, 0); | |
638 | NetWriteIP(&bp->bp_giaddr, 0); | |
639 | memcpy (bp->bp_chaddr, NetOurEther, 6); | |
640 | copy_filename (bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
641 | ||
642 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 643 | #if defined(CONFIG_CMD_DHCP) |
77ddac94 | 644 | ext_len = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 645 | #else |
77ddac94 | 646 | ext_len = BootpExtended((u8 *)bp->bp_vend); |
610f2e9c | 647 | #endif |
3861aa5c WD |
648 | |
649 | /* | |
650 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 651 | * plus the current time in ms. |
3861aa5c WD |
652 | */ |
653 | BootpID = ((ulong)NetOurEther[2] << 24) | |
654 | | ((ulong)NetOurEther[3] << 16) | |
655 | | ((ulong)NetOurEther[4] << 8) | |
656 | | (ulong)NetOurEther[5]; | |
657 | BootpID += get_timer(0); | |
232c150a | 658 | BootpID = htonl(BootpID); |
3861aa5c WD |
659 | NetCopyLong(&bp->bp_id, &BootpID); |
660 | ||
661 | /* | |
662 | * Calculate proper packet lengths taking into account the | |
663 | * variable size of the options field | |
664 | */ | |
c9a2aab1 | 665 | pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len; |
3861aa5c WD |
666 | iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len; |
667 | NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
49f3bdbb | 668 | NetSetTimeout(SELECT_TIMEOUT, BootpTimeout); |
3861aa5c | 669 | |
643d1ab2 | 670 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
671 | dhcp_state = SELECTING; |
672 | NetSetHandler(DhcpHandler); | |
673 | #else | |
674 | NetSetHandler(BootpHandler); | |
610f2e9c | 675 | #endif |
3861aa5c WD |
676 | NetSendPacket(NetTxPacket, pktlen); |
677 | } | |
678 | ||
643d1ab2 | 679 | #if defined(CONFIG_CMD_DHCP) |
3b2e4fd9 | 680 | static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp) |
3861aa5c | 681 | { |
3e38691e | 682 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 683 | int oplen, size; |
d8d8724b WD |
684 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
685 | int *to_ptr; | |
686 | #endif | |
3861aa5c | 687 | |
232c150a | 688 | while (popt < end && *popt != 0xff) { |
3861aa5c | 689 | oplen = *(popt + 1); |
232c150a WD |
690 | switch (*popt) { |
691 | case 1: | |
692 | NetCopyIP (&NetOurSubnetMask, (popt + 2)); | |
693 | break; | |
1fe80d79 | 694 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 695 | case 2: /* Time offset */ |
d8d8724b WD |
696 | to_ptr = &NetTimeOffset; |
697 | NetCopyLong ((ulong *)to_ptr, (ulong *)(popt + 2)); | |
ea287deb WD |
698 | NetTimeOffset = ntohl (NetTimeOffset); |
699 | break; | |
700 | #endif | |
232c150a WD |
701 | case 3: |
702 | NetCopyIP (&NetOurGatewayIP, (popt + 2)); | |
703 | break; | |
704 | case 6: | |
705 | NetCopyIP (&NetOurDNSIP, (popt + 2)); | |
1fe80d79 | 706 | #if defined(CONFIG_BOOTP_DNS2) |
232c150a WD |
707 | if (*(popt + 1) > 4) { |
708 | NetCopyIP (&NetOurDNS2IP, (popt + 2 + 4)); | |
709 | } | |
fe389a82 | 710 | #endif |
232c150a WD |
711 | break; |
712 | case 12: | |
713 | size = truncate_sz ("Host Name", sizeof (NetOurHostName), oplen); | |
714 | memcpy (&NetOurHostName, popt + 2, size); | |
715 | NetOurHostName[size] = 0; | |
716 | break; | |
717 | case 15: /* Ignore Domain Name Option */ | |
718 | break; | |
719 | case 17: | |
720 | size = truncate_sz ("Root Path", sizeof (NetOurRootPath), oplen); | |
721 | memcpy (&NetOurRootPath, popt + 2, size); | |
722 | NetOurRootPath[size] = 0; | |
723 | break; | |
1fe80d79 | 724 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
725 | case 42: /* NTP server IP */ |
726 | NetCopyIP (&NetNtpServerIP, (popt + 2)); | |
727 | break; | |
728 | #endif | |
232c150a WD |
729 | case 51: |
730 | NetCopyLong (&dhcp_leasetime, (ulong *) (popt + 2)); | |
731 | break; | |
732 | case 53: /* Ignore Message Type Option */ | |
733 | break; | |
734 | case 54: | |
735 | NetCopyIP (&NetDHCPServerIP, (popt + 2)); | |
736 | break; | |
737 | case 58: /* Ignore Renewal Time Option */ | |
738 | break; | |
739 | case 59: /* Ignore Rebinding Time Option */ | |
740 | break; | |
3b2e4fd9 WD |
741 | case 66: /* Ignore TFTP server name */ |
742 | break; | |
743 | case 67: /* vendor opt bootfile */ | |
744 | /* | |
745 | * I can't use dhcp_vendorex_proc here because I need | |
746 | * to write into the bootp packet - even then I had to | |
747 | * pass the bootp packet pointer into here as the | |
748 | * second arg | |
749 | */ | |
750 | size = truncate_sz ("Opt Boot File", | |
751 | sizeof(bp->bp_file), | |
752 | oplen); | |
753 | if (bp->bp_file[0] == '\0' && size > 0) { | |
754 | /* | |
755 | * only use vendor boot file if we didn't | |
756 | * receive a boot file in the main non-vendor | |
757 | * part of the packet - god only knows why | |
758 | * some vendors chose not to use this perfectly | |
759 | * good spot to store the boot file (join on | |
760 | * Tru64 Unix) it seems mind bogglingly crazy | |
761 | * to me | |
762 | */ | |
763 | printf("*** WARNING: using vendor " | |
764 | "optional boot file\n"); | |
765 | memcpy(bp->bp_file, popt + 2, size); | |
766 | bp->bp_file[size] = '\0'; | |
767 | } | |
768 | break; | |
232c150a | 769 | default: |
1fe80d79 | 770 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 771 | if (dhcp_vendorex_proc (popt)) |
8bde7f77 | 772 | break; |
3861aa5c | 773 | #endif |
232c150a WD |
774 | printf ("*** Unhandled DHCP Option in OFFER/ACK: %d\n", *popt); |
775 | break; | |
3861aa5c WD |
776 | } |
777 | popt += oplen + 2; /* Process next option */ | |
778 | } | |
779 | } | |
780 | ||
781 | static int DhcpMessageType(unsigned char *popt) | |
782 | { | |
783 | if (NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC)) | |
784 | return -1; | |
785 | ||
786 | popt += 4; | |
787 | while ( *popt != 0xff ) { | |
788 | if ( *popt == 53 ) /* DHCP Message Type */ | |
789 | return *(popt + 2); | |
790 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
791 | } | |
792 | return -1; | |
793 | } | |
794 | ||
3e38691e | 795 | static void DhcpSendRequestPkt(Bootp_t *bp_offer) |
3861aa5c WD |
796 | { |
797 | volatile uchar *pkt, *iphdr; | |
798 | Bootp_t *bp; | |
799 | int pktlen, iplen, extlen; | |
47cd00fa | 800 | IPaddr_t OfferedIP; |
3861aa5c | 801 | |
0ebf04c6 | 802 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c WD |
803 | pkt = NetTxPacket; |
804 | memset ((void*)pkt, 0, PKTSIZE); | |
805 | ||
a3d991bd | 806 | pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP); |
3861aa5c WD |
807 | |
808 | iphdr = pkt; /* We'll need this later to set proper pkt size */ | |
809 | pkt += IP_HDR_SIZE; | |
810 | ||
811 | bp = (Bootp_t *)pkt; | |
812 | bp->bp_op = OP_BOOTREQUEST; | |
813 | bp->bp_htype = HWT_ETHER; | |
814 | bp->bp_hlen = HWL_ETHER; | |
815 | bp->bp_hops = 0; | |
49f3bdbb | 816 | bp->bp_secs = htons(get_timer(0) / 1000); |
e5c794e4 JF |
817 | /* Do not set the client IP, your IP, or server IP yet, since it hasn't been ACK'ed by |
818 | * the server yet */ | |
819 | ||
c6686703 | 820 | /* |
d82718fe WD |
821 | * RFC3046 requires Relay Agents to discard packets with |
822 | * nonzero and offered giaddr | |
823 | */ | |
824 | NetWriteIP(&bp->bp_giaddr, 0); | |
825 | ||
3861aa5c WD |
826 | memcpy (bp->bp_chaddr, NetOurEther, 6); |
827 | ||
828 | /* | |
829 | * ID is the id of the OFFER packet | |
830 | */ | |
831 | ||
832 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
833 | ||
834 | /* | |
835 | * Copy options from OFFER packet if present | |
836 | */ | |
e5c794e4 JF |
837 | |
838 | /* Copy offered IP into the parameters request list */ | |
839 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
77ddac94 | 840 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, NetDHCPServerIP, OfferedIP); |
3861aa5c | 841 | |
c9a2aab1 | 842 | pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen; |
3861aa5c WD |
843 | iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen; |
844 | NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
845 | ||
0ebf04c6 | 846 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
d9a2f416 AV |
847 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
848 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
849 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
3861aa5c WD |
850 | NetSendPacket(NetTxPacket, pktlen); |
851 | } | |
852 | ||
853 | /* | |
854 | * Handle DHCP received packets. | |
855 | */ | |
856 | static void | |
857 | DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len) | |
858 | { | |
859 | Bootp_t *bp = (Bootp_t *)pkt; | |
860 | ||
0ebf04c6 | 861 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
862 | src, dest, len, dhcp_state); |
863 | ||
232c150a | 864 | if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */ |
3861aa5c WD |
865 | return; |
866 | ||
0ebf04c6 | 867 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
868 | src, dest, len, dhcp_state); |
869 | ||
870 | switch (dhcp_state) { | |
871 | case SELECTING: | |
872 | /* | |
873 | * Wait an appropriate time for any potential DHCPOFFER packets | |
874 | * to arrive. Then select one, and generate DHCPREQUEST response. | |
875 | * If filename is in format we recognize, assume it is a valid | |
876 | * OFFER from a server we want. | |
877 | */ | |
0ebf04c6 | 878 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 879 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 880 | if (strncmp(bp->bp_file, |
6d0f6bcf JCPV |
881 | CONFIG_SYS_BOOTFILE_PREFIX, |
882 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0 ) { | |
883 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ | |
3861aa5c | 884 | |
0ebf04c6 | 885 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 886 | dhcp_state = REQUESTING; |
759a51b4 | 887 | |
3861aa5c | 888 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
3b2e4fd9 | 889 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 890 | |
49f3bdbb | 891 | NetSetTimeout(TIMEOUT, BootpTimeout); |
3861aa5c | 892 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 893 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 894 | } |
6d0f6bcf | 895 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
896 | |
897 | return; | |
898 | break; | |
899 | case REQUESTING: | |
0ebf04c6 | 900 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 901 | |
77ddac94 | 902 | if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) { |
3861aa5c WD |
903 | char *s; |
904 | ||
905 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 906 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
232c150a | 907 | BootpCopyNetParams(bp); /* Store net params from reply */ |
3861aa5c | 908 | dhcp_state = BOUND; |
b6446b67 | 909 | printf ("DHCP client bound to address %pI4\n", &NetOurIP); |
3861aa5c WD |
910 | |
911 | /* Obey the 'autoload' setting */ | |
132ba5fd WD |
912 | if ((s = getenv("autoload")) != NULL) { |
913 | if (*s == 'n') { | |
914 | /* | |
915 | * Just use BOOTP to configure system; | |
916 | * Do not use TFTP to load the bootfile. | |
917 | */ | |
918 | NetState = NETLOOP_SUCCESS; | |
919 | return; | |
643d1ab2 | 920 | #if defined(CONFIG_CMD_NFS) |
132ba5fd WD |
921 | } else if (strcmp(s, "NFS") == 0) { |
922 | /* | |
923 | * Use NFS to load the bootfile. | |
924 | */ | |
925 | NfsStart(); | |
926 | return; | |
0e6d798c | 927 | #endif |
132ba5fd | 928 | } |
3861aa5c | 929 | } |
73a8b27c | 930 | TftpStart(); |
3861aa5c WD |
931 | return; |
932 | } | |
933 | break; | |
51dfe138 RB |
934 | case BOUND: |
935 | /* DHCP client bound to address */ | |
936 | break; | |
3861aa5c | 937 | default: |
4b9206ed | 938 | puts ("DHCP: INVALID STATE\n"); |
3861aa5c WD |
939 | break; |
940 | } | |
941 | ||
942 | } | |
943 | ||
944 | void DhcpRequest(void) | |
945 | { | |
946 | BootpRequest(); | |
947 | } | |
992742a5 | 948 | #endif /* CONFIG_CMD_DHCP */ |