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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; |
03eb129f LC |
47 | static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
48 | unsigned len); | |
3861aa5c WD |
49 | |
50 | /* For Debug */ | |
3e38691e WD |
51 | #if 0 |
52 | static char *dhcpmsg2str(int type) | |
3861aa5c WD |
53 | { |
54 | switch (type) { | |
232c150a WD |
55 | case 1: return "DHCPDISCOVER"; break; |
56 | case 2: return "DHCPOFFER"; break; | |
57 | case 3: return "DHCPREQUEST"; break; | |
58 | case 4: return "DHCPDECLINE"; break; | |
59 | case 5: return "DHCPACK"; break; | |
60 | case 6: return "DHCPNACK"; break; | |
61 | case 7: return "DHCPRELEASE"; break; | |
3861aa5c WD |
62 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
63 | } | |
64 | } | |
3e38691e | 65 | #endif |
3861aa5c | 66 | |
1fe80d79 | 67 | #if defined(CONFIG_BOOTP_VENDOREX) |
3861aa5c WD |
68 | extern u8 *dhcp_vendorex_prep (u8 *e); /*rtn new e after add own opts. */ |
69 | extern u8 *dhcp_vendorex_proc (u8 *e); /*rtn next e if mine,else NULL */ | |
70 | #endif | |
71 | ||
610f2e9c | 72 | #endif |
3861aa5c WD |
73 | |
74 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) | |
75 | { | |
76 | Bootp_t *bp = (Bootp_t *) pkt; | |
77 | int retval = 0; | |
78 | ||
79 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
80 | retval = -1; | |
81 | else if (len < sizeof (Bootp_t) - OPT_SIZE) | |
82 | retval = -2; | |
83 | else if (bp->bp_op != OP_BOOTREQUEST && | |
84 | bp->bp_op != OP_BOOTREPLY && | |
85 | bp->bp_op != DHCP_OFFER && | |
86 | bp->bp_op != DHCP_ACK && | |
87 | bp->bp_op != DHCP_NAK ) { | |
88 | retval = -3; | |
89 | } | |
90 | else if (bp->bp_htype != HWT_ETHER) | |
91 | retval = -4; | |
92 | else if (bp->bp_hlen != HWL_ETHER) | |
93 | retval = -5; | |
94 | else if (NetReadLong((ulong*)&bp->bp_id) != BootpID) { | |
95 | retval = -6; | |
96 | } | |
97 | ||
0ebf04c6 | 98 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
99 | |
100 | return retval; | |
101 | } | |
102 | ||
103 | /* | |
104 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
105 | */ | |
3e38691e | 106 | static void BootpCopyNetParams(Bootp_t *bp) |
3861aa5c | 107 | { |
3d3befa7 WD |
108 | IPaddr_t tmp_ip; |
109 | ||
3861aa5c | 110 | NetCopyIP(&NetOurIP, &bp->bp_yiaddr); |
5d110f0a | 111 | #if !defined(CONFIG_BOOTP_SERVERIP) |
3d3befa7 WD |
112 | NetCopyIP(&tmp_ip, &bp->bp_siaddr); |
113 | if (tmp_ip != 0) | |
114 | NetCopyIP(&NetServerIP, &bp->bp_siaddr); | |
d9bec9f4 | 115 | memcpy (NetServerEther, ((Ethernet_t *)NetRxPacket)->et_src, 6); |
5d110f0a | 116 | #endif |
3d3befa7 WD |
117 | if (strlen(bp->bp_file) > 0) |
118 | copy_filename (BootFile, bp->bp_file, sizeof(BootFile)); | |
3861aa5c | 119 | |
0ebf04c6 | 120 | debug("Bootfile: %s\n", BootFile); |
3861aa5c WD |
121 | |
122 | /* Propagate to environment: | |
8bde7f77 | 123 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
124 | * not contain a new value |
125 | */ | |
126 | if (*BootFile) { | |
127 | setenv ("bootfile", BootFile); | |
128 | } | |
129 | } | |
130 | ||
131 | static int truncate_sz (const char *name, int maxlen, int curlen) | |
132 | { | |
133 | if (curlen >= maxlen) { | |
134 | printf("*** WARNING: %s is too long (%d - max: %d) - truncated\n", | |
135 | name, curlen, maxlen); | |
136 | curlen = maxlen - 1; | |
137 | } | |
138 | return (curlen); | |
139 | } | |
140 | ||
09349866 SG |
141 | /* |
142 | * Check if autoload is enabled. If so, use either NFS or TFTP to download | |
143 | * the boot file. | |
144 | */ | |
145 | static void auto_load(void) | |
146 | { | |
147 | const char *s = getenv("autoload"); | |
148 | ||
149 | if (s != NULL) { | |
150 | if (*s == 'n') { | |
151 | /* | |
152 | * Just use BOOTP to configure system; | |
153 | * Do not use TFTP to load the bootfile. | |
154 | */ | |
155 | NetState = NETLOOP_SUCCESS; | |
156 | return; | |
157 | } | |
158 | #if defined(CONFIG_CMD_NFS) | |
159 | if (strcmp(s, "NFS") == 0) { | |
160 | /* | |
161 | * Use NFS to load the bootfile. | |
162 | */ | |
163 | NfsStart(); | |
164 | return; | |
165 | } | |
166 | #endif | |
09349866 | 167 | } |
58f317d1 | 168 | TftpStart(TFTPGET); |
09349866 SG |
169 | } |
170 | ||
643d1ab2 | 171 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 172 | |
232c150a | 173 | static void BootpVendorFieldProcess (u8 * ext) |
3861aa5c | 174 | { |
232c150a | 175 | int size = *(ext + 1); |
3861aa5c | 176 | |
0ebf04c6 | 177 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
232c150a | 178 | *(ext + 1)); |
3861aa5c | 179 | |
232c150a | 180 | NetBootFileSize = 0; |
3861aa5c | 181 | |
232c150a WD |
182 | switch (*ext) { |
183 | /* Fixed length fields */ | |
1aeed8d7 | 184 | case 1: /* Subnet mask */ |
3861aa5c | 185 | if (NetOurSubnetMask == 0) |
232c150a | 186 | NetCopyIP (&NetOurSubnetMask, (IPaddr_t *) (ext + 2)); |
3861aa5c | 187 | break; |
1aeed8d7 | 188 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 189 | break; |
232c150a | 190 | /* Variable length fields */ |
1aeed8d7 | 191 | case 3: /* Gateways list */ |
3861aa5c | 192 | if (NetOurGatewayIP == 0) { |
232c150a | 193 | NetCopyIP (&NetOurGatewayIP, (IPaddr_t *) (ext + 2)); |
3861aa5c WD |
194 | } |
195 | break; | |
1aeed8d7 | 196 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 197 | break; |
1aeed8d7 | 198 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
199 | break; |
200 | case 6: | |
201 | if (NetOurDNSIP == 0) { | |
232c150a | 202 | NetCopyIP (&NetOurDNSIP, (IPaddr_t *) (ext + 2)); |
3861aa5c | 203 | } |
1fe80d79 | 204 | #if defined(CONFIG_BOOTP_DNS2) |
fe389a82 | 205 | if ((NetOurDNS2IP == 0) && (size > 4)) { |
232c150a | 206 | NetCopyIP (&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4)); |
fe389a82 SR |
207 | } |
208 | #endif | |
3861aa5c | 209 | break; |
1aeed8d7 | 210 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 211 | break; |
1aeed8d7 | 212 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 213 | break; |
1aeed8d7 | 214 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 215 | break; |
1aeed8d7 | 216 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 217 | break; |
1aeed8d7 | 218 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 219 | break; |
1aeed8d7 | 220 | case 12: /* Host name */ |
3861aa5c | 221 | if (NetOurHostName[0] == 0) { |
232c150a WD |
222 | size = truncate_sz ("Host Name", sizeof (NetOurHostName), size); |
223 | memcpy (&NetOurHostName, ext + 2, size); | |
224 | NetOurHostName[size] = 0; | |
3861aa5c WD |
225 | } |
226 | break; | |
1aeed8d7 | 227 | case 13: /* Boot file size */ |
3861aa5c | 228 | if (size == 2) |
232c150a | 229 | NetBootFileSize = ntohs (*(ushort *) (ext + 2)); |
3861aa5c | 230 | else if (size == 4) |
232c150a | 231 | NetBootFileSize = ntohl (*(ulong *) (ext + 2)); |
3861aa5c | 232 | break; |
1aeed8d7 | 233 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 234 | break; |
1aeed8d7 | 235 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 236 | break; |
1aeed8d7 | 237 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 238 | break; |
1aeed8d7 | 239 | case 17: /* Root path */ |
3861aa5c | 240 | if (NetOurRootPath[0] == 0) { |
232c150a WD |
241 | size = truncate_sz ("Root Path", sizeof (NetOurRootPath), size); |
242 | memcpy (&NetOurRootPath, ext + 2, size); | |
243 | NetOurRootPath[size] = 0; | |
3861aa5c WD |
244 | } |
245 | break; | |
1aeed8d7 | 246 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 247 | /* |
8bde7f77 WD |
248 | * This can be used to send the information of the |
249 | * vendor area in another file that the client can | |
250 | * access via TFTP. | |
3861aa5c WD |
251 | */ |
252 | break; | |
232c150a | 253 | /* IP host layer fields */ |
1aeed8d7 | 254 | case 40: /* NIS Domain name */ |
3861aa5c | 255 | if (NetOurNISDomain[0] == 0) { |
232c150a WD |
256 | size = truncate_sz ("NIS Domain Name", sizeof (NetOurNISDomain), size); |
257 | memcpy (&NetOurNISDomain, ext + 2, size); | |
258 | NetOurNISDomain[size] = 0; | |
3861aa5c WD |
259 | } |
260 | break; | |
09e3a67d LP |
261 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
262 | case 42: /* NTP server IP */ | |
263 | NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2)); | |
264 | break; | |
265 | #endif | |
232c150a | 266 | /* Application layer fields */ |
1aeed8d7 | 267 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 268 | /* |
8bde7f77 WD |
269 | * Binary information to exchange specific |
270 | * product information. | |
3861aa5c WD |
271 | */ |
272 | break; | |
232c150a WD |
273 | /* Reserved (custom) fields (128..254) */ |
274 | } | |
3861aa5c WD |
275 | } |
276 | ||
232c150a | 277 | static void BootpVendorProcess (u8 * ext, int size) |
3861aa5c | 278 | { |
232c150a | 279 | u8 *end = ext + size; |
3861aa5c | 280 | |
0ebf04c6 | 281 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 282 | |
232c150a WD |
283 | while ((ext < end) && (*ext != 0xff)) { |
284 | if (*ext == 0) { | |
285 | ext++; | |
286 | } else { | |
287 | u8 *opt = ext; | |
288 | ||
289 | ext += ext[1] + 2; | |
290 | if (ext <= end) | |
291 | BootpVendorFieldProcess (opt); | |
292 | } | |
3861aa5c | 293 | } |
3861aa5c | 294 | |
0ebf04c6 | 295 | debug("[BOOTP] Received fields: \n"); |
b6446b67 | 296 | if (NetOurSubnetMask) |
0ebf04c6 | 297 | debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask); |
232c150a | 298 | |
b6446b67 | 299 | if (NetOurGatewayIP) |
0ebf04c6 | 300 | debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP); |
232c150a | 301 | |
0ebf04c6 RG |
302 | if (NetBootFileSize) |
303 | debug("NetBootFileSize : %d\n", NetBootFileSize); | |
3861aa5c | 304 | |
0ebf04c6 RG |
305 | if (NetOurHostName[0]) |
306 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 307 | |
0ebf04c6 RG |
308 | if (NetOurRootPath[0]) |
309 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 310 | |
0ebf04c6 RG |
311 | if (NetOurNISDomain[0]) |
312 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 313 | |
0ebf04c6 RG |
314 | if (NetBootFileSize) |
315 | debug("NetBootFileSize: %d\n", NetBootFileSize); | |
09e3a67d LP |
316 | |
317 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) | |
318 | if (NetNtpServerIP) | |
319 | debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP); | |
320 | #endif | |
232c150a | 321 | } |
09349866 | 322 | |
3861aa5c WD |
323 | /* |
324 | * Handle a BOOTP received packet. | |
325 | */ | |
326 | static void | |
03eb129f LC |
327 | BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
328 | unsigned len) | |
3861aa5c WD |
329 | { |
330 | Bootp_t *bp; | |
3861aa5c | 331 | |
0ebf04c6 | 332 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3861aa5c WD |
333 | src, dest, len, sizeof (Bootp_t)); |
334 | ||
335 | bp = (Bootp_t *)pkt; | |
336 | ||
232c150a | 337 | if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */ |
3861aa5c WD |
338 | return; |
339 | ||
340 | /* | |
232c150a | 341 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
342 | */ |
343 | #ifdef CONFIG_STATUS_LED | |
344 | status_led_set (STATUS_LED_BOOT, STATUS_LED_OFF); | |
345 | #endif | |
346 | ||
347 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
348 | ||
349 | /* Retrieve extended information (we must parse the vendor area) */ | |
350 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) | |
77ddac94 | 351 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
352 | |
353 | NetSetTimeout(0, (thand_f *)0); | |
354 | ||
0ebf04c6 | 355 | debug("Got good BOOTP\n"); |
3861aa5c | 356 | |
09349866 | 357 | auto_load(); |
3861aa5c | 358 | } |
610f2e9c | 359 | #endif |
3861aa5c WD |
360 | |
361 | /* | |
362 | * Timeout on BOOTP/DHCP request. | |
363 | */ | |
364 | static void | |
365 | BootpTimeout(void) | |
366 | { | |
367 | if (BootpTry >= TIMEOUT_COUNT) { | |
368 | puts ("\nRetry count exceeded; starting again\n"); | |
369 | NetStartAgain (); | |
370 | } else { | |
49f3bdbb | 371 | NetSetTimeout (TIMEOUT, BootpTimeout); |
3861aa5c WD |
372 | BootpRequest (); |
373 | } | |
374 | } | |
375 | ||
376 | /* | |
377 | * Initialize BOOTP extension fields in the request. | |
378 | */ | |
643d1ab2 | 379 | #if defined(CONFIG_CMD_DHCP) |
232c150a | 380 | static int DhcpExtended (u8 * e, int message_type, IPaddr_t ServerID, IPaddr_t RequestedIP) |
3861aa5c | 381 | { |
232c150a WD |
382 | u8 *start = e; |
383 | u8 *cnt; | |
d2b5d5c4 JH |
384 | #if defined(CONFIG_BOOTP_PXE) |
385 | char *uuid; | |
386 | size_t vci_strlen; | |
387 | u16 clientarch; | |
388 | #endif | |
232c150a | 389 | |
1fe80d79 | 390 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 391 | u8 *x; |
3861aa5c | 392 | #endif |
1fe80d79 | 393 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 394 | char *hostname; |
fe389a82 | 395 | #endif |
3861aa5c | 396 | |
232c150a WD |
397 | *e++ = 99; /* RFC1048 Magic Cookie */ |
398 | *e++ = 130; | |
399 | *e++ = 83; | |
400 | *e++ = 99; | |
3861aa5c | 401 | |
232c150a WD |
402 | *e++ = 53; /* DHCP Message Type */ |
403 | *e++ = 1; | |
404 | *e++ = message_type; | |
3861aa5c | 405 | |
232c150a WD |
406 | *e++ = 57; /* Maximum DHCP Message Size */ |
407 | *e++ = 2; | |
408 | *e++ = (576 - 312 + OPT_SIZE) >> 8; | |
409 | *e++ = (576 - 312 + OPT_SIZE) & 0xff; | |
3861aa5c | 410 | |
232c150a WD |
411 | if (ServerID) { |
412 | int tmp = ntohl (ServerID); | |
3861aa5c | 413 | |
232c150a WD |
414 | *e++ = 54; /* ServerID */ |
415 | *e++ = 4; | |
416 | *e++ = tmp >> 24; | |
417 | *e++ = tmp >> 16; | |
418 | *e++ = tmp >> 8; | |
419 | *e++ = tmp & 0xff; | |
420 | } | |
3861aa5c | 421 | |
232c150a WD |
422 | if (RequestedIP) { |
423 | int tmp = ntohl (RequestedIP); | |
3861aa5c | 424 | |
232c150a WD |
425 | *e++ = 50; /* Requested IP */ |
426 | *e++ = 4; | |
427 | *e++ = tmp >> 24; | |
428 | *e++ = tmp >> 16; | |
429 | *e++ = tmp >> 8; | |
430 | *e++ = tmp & 0xff; | |
431 | } | |
1fe80d79 | 432 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
232c150a WD |
433 | if ((hostname = getenv ("hostname"))) { |
434 | int hostnamelen = strlen (hostname); | |
435 | ||
436 | *e++ = 12; /* Hostname */ | |
437 | *e++ = hostnamelen; | |
438 | memcpy (e, hostname, hostnamelen); | |
439 | e += hostnamelen; | |
440 | } | |
fe389a82 SR |
441 | #endif |
442 | ||
d2b5d5c4 JH |
443 | #if defined(CONFIG_BOOTP_PXE) |
444 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
445 | *e++ = 93; /* Client System Architecture */ | |
446 | *e++ = 2; | |
447 | *e++ = (clientarch >> 8) & 0xff; | |
448 | *e++ = clientarch & 0xff; | |
449 | ||
450 | *e++ = 94; /* Client Network Interface Identifier */ | |
451 | *e++ = 3; | |
452 | *e++ = 1; /* type field for UNDI */ | |
453 | *e++ = 0; /* major revision */ | |
454 | *e++ = 0; /* minor revision */ | |
455 | ||
456 | uuid = getenv("pxeuuid"); | |
457 | ||
458 | if (uuid) { | |
459 | if (uuid_str_valid(uuid)) { | |
460 | *e++ = 97; /* Client Machine Identifier */ | |
461 | *e++ = 17; | |
462 | *e++ = 0; /* type 0 - UUID */ | |
463 | ||
464 | uuid_str_to_bin(uuid, e); | |
465 | e += 16; | |
466 | } else { | |
467 | printf("Invalid pxeuuid: %s\n", uuid); | |
468 | } | |
469 | } | |
470 | ||
471 | *e++ = 60; /* Vendor Class Identifier */ | |
472 | vci_strlen = strlen(CONFIG_BOOTP_VCI_STRING); | |
473 | *e++ = vci_strlen; | |
474 | memcpy(e, CONFIG_BOOTP_VCI_STRING, vci_strlen); | |
475 | e += vci_strlen; | |
476 | #endif | |
477 | ||
1fe80d79 | 478 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a WD |
479 | if ((x = dhcp_vendorex_prep (e))) |
480 | return x - start; | |
3861aa5c WD |
481 | #endif |
482 | ||
232c150a WD |
483 | *e++ = 55; /* Parameter Request List */ |
484 | cnt = e++; /* Pointer to count of requested items */ | |
485 | *cnt = 0; | |
1fe80d79 | 486 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
487 | *e++ = 1; /* Subnet Mask */ |
488 | *cnt += 1; | |
3861aa5c | 489 | #endif |
1fe80d79 | 490 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
491 | *e++ = 2; |
492 | *cnt += 1; | |
493 | #endif | |
1fe80d79 | 494 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
495 | *e++ = 3; /* Router Option */ |
496 | *cnt += 1; | |
3861aa5c | 497 | #endif |
1fe80d79 | 498 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
499 | *e++ = 6; /* DNS Server(s) */ |
500 | *cnt += 1; | |
3861aa5c | 501 | #endif |
1fe80d79 | 502 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
503 | *e++ = 12; /* Hostname */ |
504 | *cnt += 1; | |
3861aa5c | 505 | #endif |
1fe80d79 | 506 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
507 | *e++ = 13; /* Boot File Size */ |
508 | *cnt += 1; | |
3861aa5c | 509 | #endif |
1fe80d79 | 510 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
511 | *e++ = 17; /* Boot path */ |
512 | *cnt += 1; | |
3861aa5c | 513 | #endif |
1fe80d79 | 514 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
515 | *e++ = 40; /* NIS Domain name request */ |
516 | *cnt += 1; | |
ea287deb | 517 | #endif |
1fe80d79 | 518 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
519 | *e++ = 42; |
520 | *cnt += 1; | |
3861aa5c | 521 | #endif |
258ccd68 JL |
522 | /* no options, so back up to avoid sending an empty request list */ |
523 | if (*cnt == 0) | |
524 | e -= 2; | |
525 | ||
232c150a | 526 | *e++ = 255; /* End of the list */ |
3861aa5c | 527 | |
232c150a | 528 | /* Pad to minimal length */ |
3861aa5c | 529 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 530 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 531 | *e++ = 0; |
3861aa5c WD |
532 | #endif |
533 | ||
232c150a | 534 | return e - start; |
3861aa5c WD |
535 | } |
536 | ||
610f2e9c | 537 | #else |
3861aa5c | 538 | /* |
1fe80d79 | 539 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 540 | */ |
232c150a | 541 | static int BootpExtended (u8 * e) |
3861aa5c | 542 | { |
232c150a | 543 | u8 *start = e; |
3861aa5c | 544 | |
232c150a WD |
545 | *e++ = 99; /* RFC1048 Magic Cookie */ |
546 | *e++ = 130; | |
547 | *e++ = 83; | |
548 | *e++ = 99; | |
3861aa5c | 549 | |
643d1ab2 | 550 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
551 | *e++ = 53; /* DHCP Message Type */ |
552 | *e++ = 1; | |
553 | *e++ = DHCP_DISCOVER; | |
554 | ||
555 | *e++ = 57; /* Maximum DHCP Message Size */ | |
556 | *e++ = 2; | |
557 | *e++ = (576 - 312 + OPT_SIZE) >> 16; | |
558 | *e++ = (576 - 312 + OPT_SIZE) & 0xff; | |
610f2e9c | 559 | #endif |
3861aa5c | 560 | |
1fe80d79 | 561 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
562 | *e++ = 1; /* Subnet mask request */ |
563 | *e++ = 4; | |
564 | e += 4; | |
3861aa5c WD |
565 | #endif |
566 | ||
1fe80d79 | 567 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
568 | *e++ = 3; /* Default gateway request */ |
569 | *e++ = 4; | |
570 | e += 4; | |
3861aa5c WD |
571 | #endif |
572 | ||
1fe80d79 | 573 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
574 | *e++ = 6; /* Domain Name Server */ |
575 | *e++ = 4; | |
576 | e += 4; | |
3861aa5c WD |
577 | #endif |
578 | ||
1fe80d79 | 579 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
580 | *e++ = 12; /* Host name request */ |
581 | *e++ = 32; | |
582 | e += 32; | |
3861aa5c WD |
583 | #endif |
584 | ||
1fe80d79 | 585 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
586 | *e++ = 13; /* Boot file size */ |
587 | *e++ = 2; | |
588 | e += 2; | |
3861aa5c WD |
589 | #endif |
590 | ||
1fe80d79 | 591 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
592 | *e++ = 17; /* Boot path */ |
593 | *e++ = 32; | |
594 | e += 32; | |
3861aa5c WD |
595 | #endif |
596 | ||
1fe80d79 | 597 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
598 | *e++ = 40; /* NIS Domain name request */ |
599 | *e++ = 32; | |
600 | e += 32; | |
3861aa5c | 601 | #endif |
09e3a67d LP |
602 | #if defined(CONFIG_BOOTP_NTPSERVER) |
603 | *e++ = 42; | |
604 | *e++ = 4; | |
605 | e += 4; | |
606 | #endif | |
3861aa5c | 607 | |
232c150a | 608 | *e++ = 255; /* End of the list */ |
3861aa5c | 609 | |
232c150a | 610 | return e - start; |
3861aa5c | 611 | } |
610f2e9c | 612 | #endif |
3861aa5c WD |
613 | |
614 | void | |
615 | BootpRequest (void) | |
616 | { | |
617 | volatile uchar *pkt, *iphdr; | |
618 | Bootp_t *bp; | |
619 | int ext_len, pktlen, iplen; | |
620 | ||
643d1ab2 | 621 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
622 | dhcp_state = INIT; |
623 | #endif | |
624 | ||
625 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
626 | unsigned char bi_enetaddr[6]; | |
627 | int reg; | |
3861aa5c WD |
628 | ulong tst1, tst2, sum, m_mask, m_value = 0; |
629 | ||
630 | if (BootpTry ==0) { | |
631 | /* get our mac */ | |
95823ca0 MF |
632 | eth_getenv_enetaddr("ethaddr", bi_enetaddr); |
633 | ||
0ebf04c6 RG |
634 | debug("BootpRequest => Our Mac: "); |
635 | for (reg=0; reg<6; reg++) | |
636 | debug("%x%c", bi_enetaddr[reg], reg==5 ? '\n' : ':'); | |
3861aa5c WD |
637 | |
638 | /* Mac-Manipulation 2 get seed1 */ | |
639 | tst1=0; | |
640 | tst2=0; | |
641 | for (reg=2; reg<6; reg++) { | |
642 | tst1 = tst1 << 8; | |
643 | tst1 = tst1 | bi_enetaddr[reg]; | |
644 | } | |
645 | for (reg=0; reg<2; reg++) { | |
646 | tst2 = tst2 | bi_enetaddr[reg]; | |
647 | tst2 = tst2 << 8; | |
648 | } | |
649 | ||
650 | seed1 = tst1^tst2; | |
651 | ||
652 | /* Mirror seed1*/ | |
653 | m_mask=0x1; | |
654 | for (reg=1;reg<=32;reg++) { | |
655 | m_value |= (m_mask & seed1); | |
656 | seed1 = seed1 >> 1; | |
657 | m_value = m_value << 1; | |
658 | } | |
659 | seed1 = m_value; | |
660 | seed2 = 0xB78D0945; | |
661 | } | |
662 | ||
663 | /* Random Number Generator */ | |
664 | ||
665 | for (reg=0;reg<=0;reg++) { | |
666 | sum = seed1 + seed2; | |
667 | if (sum < seed1 || sum < seed2) | |
668 | sum++; | |
8bde7f77 | 669 | seed2 = seed1; |
3861aa5c WD |
670 | seed1 = sum; |
671 | ||
672 | if (BootpTry<=2) { /* Start with max 1024 * 1ms */ | |
673 | sum = sum >> (22-BootpTry); | |
674 | } else { /*After 3rd BOOTP request max 8192 * 1ms */ | |
675 | sum = sum >> 19; | |
676 | } | |
677 | } | |
678 | ||
679 | printf ("Random delay: %ld ms...\n", sum); | |
680 | for (reg=0; reg <sum; reg++) { | |
681 | udelay(1000); /*Wait 1ms*/ | |
682 | } | |
683 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ | |
684 | ||
685 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
686 | pkt = NetTxPacket; | |
687 | memset ((void*)pkt, 0, PKTSIZE); | |
688 | ||
a3d991bd | 689 | pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP); |
3861aa5c WD |
690 | |
691 | /* | |
692 | * Next line results in incorrect packet size being transmitted, resulting | |
693 | * in errors in some DHCP servers, reporting missing bytes. Size must be | |
694 | * set in packet header after extension length has been determined. | |
695 | * C. Hallinan, DS4.COM, Inc. | |
696 | */ | |
697 | /* NetSetIP(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, sizeof (Bootp_t)); */ | |
698 | iphdr = pkt; /* We need this later for NetSetIP() */ | |
699 | pkt += IP_HDR_SIZE; | |
700 | ||
701 | bp = (Bootp_t *)pkt; | |
702 | bp->bp_op = OP_BOOTREQUEST; | |
703 | bp->bp_htype = HWT_ETHER; | |
704 | bp->bp_hlen = HWL_ETHER; | |
705 | bp->bp_hops = 0; | |
49f3bdbb | 706 | bp->bp_secs = htons(get_timer(0) / 1000); |
3861aa5c WD |
707 | NetWriteIP(&bp->bp_ciaddr, 0); |
708 | NetWriteIP(&bp->bp_yiaddr, 0); | |
709 | NetWriteIP(&bp->bp_siaddr, 0); | |
710 | NetWriteIP(&bp->bp_giaddr, 0); | |
711 | memcpy (bp->bp_chaddr, NetOurEther, 6); | |
712 | copy_filename (bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
713 | ||
714 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 715 | #if defined(CONFIG_CMD_DHCP) |
77ddac94 | 716 | ext_len = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 717 | #else |
77ddac94 | 718 | ext_len = BootpExtended((u8 *)bp->bp_vend); |
610f2e9c | 719 | #endif |
3861aa5c WD |
720 | |
721 | /* | |
722 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 723 | * plus the current time in ms. |
3861aa5c WD |
724 | */ |
725 | BootpID = ((ulong)NetOurEther[2] << 24) | |
726 | | ((ulong)NetOurEther[3] << 16) | |
727 | | ((ulong)NetOurEther[4] << 8) | |
728 | | (ulong)NetOurEther[5]; | |
729 | BootpID += get_timer(0); | |
232c150a | 730 | BootpID = htonl(BootpID); |
3861aa5c WD |
731 | NetCopyLong(&bp->bp_id, &BootpID); |
732 | ||
733 | /* | |
734 | * Calculate proper packet lengths taking into account the | |
735 | * variable size of the options field | |
736 | */ | |
c9a2aab1 | 737 | pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len; |
3861aa5c WD |
738 | iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + ext_len; |
739 | NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
49f3bdbb | 740 | NetSetTimeout(SELECT_TIMEOUT, BootpTimeout); |
3861aa5c | 741 | |
643d1ab2 | 742 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
743 | dhcp_state = SELECTING; |
744 | NetSetHandler(DhcpHandler); | |
745 | #else | |
746 | NetSetHandler(BootpHandler); | |
610f2e9c | 747 | #endif |
3861aa5c WD |
748 | NetSendPacket(NetTxPacket, pktlen); |
749 | } | |
750 | ||
643d1ab2 | 751 | #if defined(CONFIG_CMD_DHCP) |
3b2e4fd9 | 752 | static void DhcpOptionsProcess (uchar * popt, Bootp_t *bp) |
3861aa5c | 753 | { |
3e38691e | 754 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 755 | int oplen, size; |
d8d8724b WD |
756 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
757 | int *to_ptr; | |
758 | #endif | |
3861aa5c | 759 | |
232c150a | 760 | while (popt < end && *popt != 0xff) { |
3861aa5c | 761 | oplen = *(popt + 1); |
232c150a WD |
762 | switch (*popt) { |
763 | case 1: | |
764 | NetCopyIP (&NetOurSubnetMask, (popt + 2)); | |
765 | break; | |
1fe80d79 | 766 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 767 | case 2: /* Time offset */ |
d8d8724b WD |
768 | to_ptr = &NetTimeOffset; |
769 | NetCopyLong ((ulong *)to_ptr, (ulong *)(popt + 2)); | |
ea287deb WD |
770 | NetTimeOffset = ntohl (NetTimeOffset); |
771 | break; | |
772 | #endif | |
232c150a WD |
773 | case 3: |
774 | NetCopyIP (&NetOurGatewayIP, (popt + 2)); | |
775 | break; | |
776 | case 6: | |
777 | NetCopyIP (&NetOurDNSIP, (popt + 2)); | |
1fe80d79 | 778 | #if defined(CONFIG_BOOTP_DNS2) |
232c150a WD |
779 | if (*(popt + 1) > 4) { |
780 | NetCopyIP (&NetOurDNS2IP, (popt + 2 + 4)); | |
781 | } | |
fe389a82 | 782 | #endif |
232c150a WD |
783 | break; |
784 | case 12: | |
785 | size = truncate_sz ("Host Name", sizeof (NetOurHostName), oplen); | |
786 | memcpy (&NetOurHostName, popt + 2, size); | |
787 | NetOurHostName[size] = 0; | |
788 | break; | |
789 | case 15: /* Ignore Domain Name Option */ | |
790 | break; | |
791 | case 17: | |
792 | size = truncate_sz ("Root Path", sizeof (NetOurRootPath), oplen); | |
793 | memcpy (&NetOurRootPath, popt + 2, size); | |
794 | NetOurRootPath[size] = 0; | |
795 | break; | |
1fe80d79 | 796 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
797 | case 42: /* NTP server IP */ |
798 | NetCopyIP (&NetNtpServerIP, (popt + 2)); | |
799 | break; | |
800 | #endif | |
232c150a WD |
801 | case 51: |
802 | NetCopyLong (&dhcp_leasetime, (ulong *) (popt + 2)); | |
803 | break; | |
804 | case 53: /* Ignore Message Type Option */ | |
805 | break; | |
806 | case 54: | |
807 | NetCopyIP (&NetDHCPServerIP, (popt + 2)); | |
808 | break; | |
809 | case 58: /* Ignore Renewal Time Option */ | |
810 | break; | |
811 | case 59: /* Ignore Rebinding Time Option */ | |
812 | break; | |
3b2e4fd9 WD |
813 | case 66: /* Ignore TFTP server name */ |
814 | break; | |
815 | case 67: /* vendor opt bootfile */ | |
816 | /* | |
817 | * I can't use dhcp_vendorex_proc here because I need | |
818 | * to write into the bootp packet - even then I had to | |
819 | * pass the bootp packet pointer into here as the | |
820 | * second arg | |
821 | */ | |
822 | size = truncate_sz ("Opt Boot File", | |
823 | sizeof(bp->bp_file), | |
824 | oplen); | |
825 | if (bp->bp_file[0] == '\0' && size > 0) { | |
826 | /* | |
827 | * only use vendor boot file if we didn't | |
828 | * receive a boot file in the main non-vendor | |
829 | * part of the packet - god only knows why | |
830 | * some vendors chose not to use this perfectly | |
831 | * good spot to store the boot file (join on | |
832 | * Tru64 Unix) it seems mind bogglingly crazy | |
833 | * to me | |
834 | */ | |
835 | printf("*** WARNING: using vendor " | |
836 | "optional boot file\n"); | |
837 | memcpy(bp->bp_file, popt + 2, size); | |
838 | bp->bp_file[size] = '\0'; | |
839 | } | |
840 | break; | |
232c150a | 841 | default: |
1fe80d79 | 842 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 843 | if (dhcp_vendorex_proc (popt)) |
8bde7f77 | 844 | break; |
3861aa5c | 845 | #endif |
232c150a WD |
846 | printf ("*** Unhandled DHCP Option in OFFER/ACK: %d\n", *popt); |
847 | break; | |
3861aa5c WD |
848 | } |
849 | popt += oplen + 2; /* Process next option */ | |
850 | } | |
851 | } | |
852 | ||
853 | static int DhcpMessageType(unsigned char *popt) | |
854 | { | |
855 | if (NetReadLong((ulong*)popt) != htonl(BOOTP_VENDOR_MAGIC)) | |
856 | return -1; | |
857 | ||
858 | popt += 4; | |
859 | while ( *popt != 0xff ) { | |
860 | if ( *popt == 53 ) /* DHCP Message Type */ | |
861 | return *(popt + 2); | |
862 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
863 | } | |
864 | return -1; | |
865 | } | |
866 | ||
3e38691e | 867 | static void DhcpSendRequestPkt(Bootp_t *bp_offer) |
3861aa5c WD |
868 | { |
869 | volatile uchar *pkt, *iphdr; | |
870 | Bootp_t *bp; | |
871 | int pktlen, iplen, extlen; | |
47cd00fa | 872 | IPaddr_t OfferedIP; |
3861aa5c | 873 | |
0ebf04c6 | 874 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c WD |
875 | pkt = NetTxPacket; |
876 | memset ((void*)pkt, 0, PKTSIZE); | |
877 | ||
a3d991bd | 878 | pkt += NetSetEther(pkt, NetBcastAddr, PROT_IP); |
3861aa5c WD |
879 | |
880 | iphdr = pkt; /* We'll need this later to set proper pkt size */ | |
881 | pkt += IP_HDR_SIZE; | |
882 | ||
883 | bp = (Bootp_t *)pkt; | |
884 | bp->bp_op = OP_BOOTREQUEST; | |
885 | bp->bp_htype = HWT_ETHER; | |
886 | bp->bp_hlen = HWL_ETHER; | |
887 | bp->bp_hops = 0; | |
49f3bdbb | 888 | bp->bp_secs = htons(get_timer(0) / 1000); |
e5c794e4 JF |
889 | /* Do not set the client IP, your IP, or server IP yet, since it hasn't been ACK'ed by |
890 | * the server yet */ | |
891 | ||
c6686703 | 892 | /* |
d82718fe WD |
893 | * RFC3046 requires Relay Agents to discard packets with |
894 | * nonzero and offered giaddr | |
895 | */ | |
896 | NetWriteIP(&bp->bp_giaddr, 0); | |
897 | ||
3861aa5c WD |
898 | memcpy (bp->bp_chaddr, NetOurEther, 6); |
899 | ||
900 | /* | |
901 | * ID is the id of the OFFER packet | |
902 | */ | |
903 | ||
904 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
905 | ||
906 | /* | |
907 | * Copy options from OFFER packet if present | |
908 | */ | |
e5c794e4 JF |
909 | |
910 | /* Copy offered IP into the parameters request list */ | |
911 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
77ddac94 | 912 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, NetDHCPServerIP, OfferedIP); |
3861aa5c | 913 | |
c9a2aab1 | 914 | pktlen = ((int)(pkt-NetTxPacket)) + BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen; |
3861aa5c WD |
915 | iplen = BOOTP_HDR_SIZE - sizeof(bp->bp_vend) + extlen; |
916 | NetSetIP(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
917 | ||
0ebf04c6 | 918 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
d9a2f416 AV |
919 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
920 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
921 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
3861aa5c WD |
922 | NetSendPacket(NetTxPacket, pktlen); |
923 | } | |
924 | ||
925 | /* | |
926 | * Handle DHCP received packets. | |
927 | */ | |
928 | static void | |
03eb129f LC |
929 | DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
930 | unsigned len) | |
3861aa5c WD |
931 | { |
932 | Bootp_t *bp = (Bootp_t *)pkt; | |
933 | ||
0ebf04c6 | 934 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
935 | src, dest, len, dhcp_state); |
936 | ||
232c150a | 937 | if (BootpCheckPkt(pkt, dest, src, len)) /* Filter out pkts we don't want */ |
3861aa5c WD |
938 | return; |
939 | ||
0ebf04c6 | 940 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
941 | src, dest, len, dhcp_state); |
942 | ||
943 | switch (dhcp_state) { | |
944 | case SELECTING: | |
945 | /* | |
946 | * Wait an appropriate time for any potential DHCPOFFER packets | |
947 | * to arrive. Then select one, and generate DHCPREQUEST response. | |
948 | * If filename is in format we recognize, assume it is a valid | |
949 | * OFFER from a server we want. | |
950 | */ | |
0ebf04c6 | 951 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 952 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 953 | if (strncmp(bp->bp_file, |
6d0f6bcf JCPV |
954 | CONFIG_SYS_BOOTFILE_PREFIX, |
955 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0 ) { | |
956 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ | |
3861aa5c | 957 | |
0ebf04c6 | 958 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 959 | dhcp_state = REQUESTING; |
759a51b4 | 960 | |
3861aa5c | 961 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
3b2e4fd9 | 962 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 963 | |
49f3bdbb | 964 | NetSetTimeout(TIMEOUT, BootpTimeout); |
3861aa5c | 965 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 966 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 967 | } |
6d0f6bcf | 968 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
969 | |
970 | return; | |
971 | break; | |
972 | case REQUESTING: | |
0ebf04c6 | 973 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 974 | |
77ddac94 | 975 | if ( DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK ) { |
3861aa5c | 976 | if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
3b2e4fd9 | 977 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
232c150a | 978 | BootpCopyNetParams(bp); /* Store net params from reply */ |
3861aa5c | 979 | dhcp_state = BOUND; |
b6446b67 | 980 | printf ("DHCP client bound to address %pI4\n", &NetOurIP); |
3861aa5c | 981 | |
09349866 | 982 | auto_load(); |
3861aa5c WD |
983 | return; |
984 | } | |
985 | break; | |
51dfe138 RB |
986 | case BOUND: |
987 | /* DHCP client bound to address */ | |
988 | break; | |
3861aa5c | 989 | default: |
4b9206ed | 990 | puts ("DHCP: INVALID STATE\n"); |
3861aa5c WD |
991 | break; |
992 | } | |
993 | ||
994 | } | |
995 | ||
996 | void DhcpRequest(void) | |
997 | { | |
998 | BootpRequest(); | |
999 | } | |
992742a5 | 1000 | #endif /* CONFIG_CMD_DHCP */ |