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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" | |
eafc8db0 | 15 | #include "net_rand.h" |
3861aa5c | 16 | #include "tftp.h" |
232c150a | 17 | #include "nfs.h" |
3861aa5c WD |
18 | #ifdef CONFIG_STATUS_LED |
19 | #include <status_led.h> | |
20 | #endif | |
c0fe04bf | 21 | #include <linux/compiler.h> |
3861aa5c | 22 | |
3090b7e3 | 23 | #define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ |
3861aa5c | 24 | |
49f3bdbb | 25 | #define TIMEOUT 5000UL /* Milliseconds before trying BOOTP again */ |
232c150a | 26 | #ifndef CONFIG_NET_RETRY_COUNT |
3090b7e3 | 27 | # define TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
3861aa5c | 28 | #else |
232c150a | 29 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) |
3861aa5c WD |
30 | #endif |
31 | ||
3090b7e3 JH |
32 | #define PORT_BOOTPS 67 /* BOOTP server UDP port */ |
33 | #define PORT_BOOTPC 68 /* BOOTP client UDP port */ | |
3861aa5c | 34 | |
3090b7e3 | 35 | #ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ |
232c150a | 36 | #define CONFIG_DHCP_MIN_EXT_LEN 64 |
3861aa5c WD |
37 | #endif |
38 | ||
39 | ulong BootpID; | |
40 | int BootpTry; | |
3861aa5c | 41 | |
643d1ab2 | 42 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 43 | dhcp_state_t dhcp_state = INIT; |
3090b7e3 JH |
44 | unsigned long dhcp_leasetime; |
45 | IPaddr_t NetDHCPServerIP; | |
03eb129f LC |
46 | static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
47 | unsigned len); | |
3861aa5c WD |
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 |
610f2e9c | 65 | #endif |
3861aa5c WD |
66 | |
67 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) | |
68 | { | |
3090b7e3 | 69 | struct Bootp_t *bp = (struct Bootp_t *) pkt; |
3861aa5c WD |
70 | int retval = 0; |
71 | ||
72 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
73 | retval = -1; | |
f8315731 | 74 | else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE) |
3861aa5c WD |
75 | retval = -2; |
76 | else if (bp->bp_op != OP_BOOTREQUEST && | |
3090b7e3 JH |
77 | bp->bp_op != OP_BOOTREPLY && |
78 | bp->bp_op != DHCP_OFFER && | |
79 | bp->bp_op != DHCP_ACK && | |
80 | bp->bp_op != DHCP_NAK) | |
3861aa5c | 81 | retval = -3; |
3861aa5c WD |
82 | else if (bp->bp_htype != HWT_ETHER) |
83 | retval = -4; | |
84 | else if (bp->bp_hlen != HWL_ETHER) | |
85 | retval = -5; | |
3090b7e3 | 86 | else if (NetReadLong((ulong *)&bp->bp_id) != BootpID) |
3861aa5c | 87 | retval = -6; |
3861aa5c | 88 | |
0ebf04c6 | 89 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
90 | |
91 | return retval; | |
92 | } | |
93 | ||
94 | /* | |
95 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
96 | */ | |
3090b7e3 | 97 | static void BootpCopyNetParams(struct Bootp_t *bp) |
3861aa5c | 98 | { |
c0fe04bf | 99 | __maybe_unused IPaddr_t tmp_ip; |
3d3befa7 | 100 | |
3861aa5c | 101 | NetCopyIP(&NetOurIP, &bp->bp_yiaddr); |
5d110f0a | 102 | #if !defined(CONFIG_BOOTP_SERVERIP) |
3d3befa7 WD |
103 | NetCopyIP(&tmp_ip, &bp->bp_siaddr); |
104 | if (tmp_ip != 0) | |
105 | NetCopyIP(&NetServerIP, &bp->bp_siaddr); | |
cb487f56 | 106 | memcpy(NetServerEther, ((struct ethernet_hdr *)NetRxPacket)->et_src, 6); |
5d110f0a | 107 | #endif |
3d3befa7 | 108 | if (strlen(bp->bp_file) > 0) |
3090b7e3 | 109 | copy_filename(BootFile, bp->bp_file, sizeof(BootFile)); |
3861aa5c | 110 | |
0ebf04c6 | 111 | debug("Bootfile: %s\n", BootFile); |
3861aa5c WD |
112 | |
113 | /* Propagate to environment: | |
8bde7f77 | 114 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
115 | * not contain a new value |
116 | */ | |
3090b7e3 JH |
117 | if (*BootFile) |
118 | setenv("bootfile", BootFile); | |
3861aa5c WD |
119 | } |
120 | ||
3090b7e3 | 121 | static int truncate_sz(const char *name, int maxlen, int curlen) |
3861aa5c WD |
122 | { |
123 | if (curlen >= maxlen) { | |
3090b7e3 JH |
124 | printf("*** WARNING: %s is too long (%d - max: %d)" |
125 | " - truncated\n", name, curlen, maxlen); | |
3861aa5c WD |
126 | curlen = maxlen - 1; |
127 | } | |
3090b7e3 | 128 | return curlen; |
3861aa5c WD |
129 | } |
130 | ||
643d1ab2 | 131 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 132 | |
3090b7e3 | 133 | static void BootpVendorFieldProcess(u8 *ext) |
3861aa5c | 134 | { |
232c150a | 135 | int size = *(ext + 1); |
3861aa5c | 136 | |
0ebf04c6 | 137 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
3090b7e3 | 138 | *(ext + 1)); |
3861aa5c | 139 | |
232c150a | 140 | NetBootFileSize = 0; |
3861aa5c | 141 | |
232c150a WD |
142 | switch (*ext) { |
143 | /* Fixed length fields */ | |
3090b7e3 | 144 | case 1: /* Subnet mask */ |
3861aa5c | 145 | if (NetOurSubnetMask == 0) |
3090b7e3 | 146 | NetCopyIP(&NetOurSubnetMask, (IPaddr_t *) (ext + 2)); |
3861aa5c | 147 | break; |
3090b7e3 | 148 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 149 | break; |
232c150a | 150 | /* Variable length fields */ |
3090b7e3 JH |
151 | case 3: /* Gateways list */ |
152 | if (NetOurGatewayIP == 0) | |
153 | NetCopyIP(&NetOurGatewayIP, (IPaddr_t *) (ext + 2)); | |
3861aa5c | 154 | break; |
3090b7e3 | 155 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 156 | break; |
3090b7e3 | 157 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
158 | break; |
159 | case 6: | |
3090b7e3 JH |
160 | if (NetOurDNSIP == 0) |
161 | NetCopyIP(&NetOurDNSIP, (IPaddr_t *) (ext + 2)); | |
1fe80d79 | 162 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
163 | if ((NetOurDNS2IP == 0) && (size > 4)) |
164 | NetCopyIP(&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4)); | |
fe389a82 | 165 | #endif |
3861aa5c | 166 | break; |
3090b7e3 | 167 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 168 | break; |
3090b7e3 | 169 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 170 | break; |
3090b7e3 | 171 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 172 | break; |
3090b7e3 | 173 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 174 | break; |
3090b7e3 | 175 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 176 | break; |
3090b7e3 | 177 | case 12: /* Host name */ |
3861aa5c | 178 | if (NetOurHostName[0] == 0) { |
3090b7e3 JH |
179 | size = truncate_sz("Host Name", |
180 | sizeof(NetOurHostName), size); | |
181 | memcpy(&NetOurHostName, ext + 2, size); | |
232c150a | 182 | NetOurHostName[size] = 0; |
3861aa5c WD |
183 | } |
184 | break; | |
3090b7e3 | 185 | case 13: /* Boot file size */ |
3861aa5c | 186 | if (size == 2) |
3090b7e3 | 187 | NetBootFileSize = ntohs(*(ushort *) (ext + 2)); |
3861aa5c | 188 | else if (size == 4) |
3090b7e3 | 189 | NetBootFileSize = ntohl(*(ulong *) (ext + 2)); |
3861aa5c | 190 | break; |
3090b7e3 | 191 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 192 | break; |
3090b7e3 | 193 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 194 | break; |
3090b7e3 | 195 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 196 | break; |
3090b7e3 | 197 | case 17: /* Root path */ |
3861aa5c | 198 | if (NetOurRootPath[0] == 0) { |
3090b7e3 JH |
199 | size = truncate_sz("Root Path", |
200 | sizeof(NetOurRootPath), size); | |
201 | memcpy(&NetOurRootPath, ext + 2, size); | |
232c150a | 202 | NetOurRootPath[size] = 0; |
3861aa5c WD |
203 | } |
204 | break; | |
3090b7e3 | 205 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 206 | /* |
8bde7f77 WD |
207 | * This can be used to send the information of the |
208 | * vendor area in another file that the client can | |
209 | * access via TFTP. | |
3861aa5c WD |
210 | */ |
211 | break; | |
232c150a | 212 | /* IP host layer fields */ |
3090b7e3 | 213 | case 40: /* NIS Domain name */ |
3861aa5c | 214 | if (NetOurNISDomain[0] == 0) { |
3090b7e3 JH |
215 | size = truncate_sz("NIS Domain Name", |
216 | sizeof(NetOurNISDomain), size); | |
217 | memcpy(&NetOurNISDomain, ext + 2, size); | |
232c150a | 218 | NetOurNISDomain[size] = 0; |
3861aa5c WD |
219 | } |
220 | break; | |
09e3a67d LP |
221 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
222 | case 42: /* NTP server IP */ | |
223 | NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2)); | |
224 | break; | |
225 | #endif | |
232c150a | 226 | /* Application layer fields */ |
3090b7e3 | 227 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 228 | /* |
8bde7f77 WD |
229 | * Binary information to exchange specific |
230 | * product information. | |
3861aa5c WD |
231 | */ |
232 | break; | |
232c150a WD |
233 | /* Reserved (custom) fields (128..254) */ |
234 | } | |
3861aa5c WD |
235 | } |
236 | ||
3090b7e3 | 237 | static void BootpVendorProcess(u8 *ext, int size) |
3861aa5c | 238 | { |
232c150a | 239 | u8 *end = ext + size; |
3861aa5c | 240 | |
0ebf04c6 | 241 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 242 | |
232c150a WD |
243 | while ((ext < end) && (*ext != 0xff)) { |
244 | if (*ext == 0) { | |
245 | ext++; | |
246 | } else { | |
247 | u8 *opt = ext; | |
248 | ||
249 | ext += ext[1] + 2; | |
250 | if (ext <= end) | |
3090b7e3 | 251 | BootpVendorFieldProcess(opt); |
232c150a | 252 | } |
3861aa5c | 253 | } |
3861aa5c | 254 | |
3090b7e3 | 255 | debug("[BOOTP] Received fields:\n"); |
b6446b67 | 256 | if (NetOurSubnetMask) |
0ebf04c6 | 257 | debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask); |
232c150a | 258 | |
b6446b67 | 259 | if (NetOurGatewayIP) |
0ebf04c6 | 260 | debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP); |
232c150a | 261 | |
0ebf04c6 RG |
262 | if (NetBootFileSize) |
263 | debug("NetBootFileSize : %d\n", NetBootFileSize); | |
3861aa5c | 264 | |
0ebf04c6 RG |
265 | if (NetOurHostName[0]) |
266 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 267 | |
0ebf04c6 RG |
268 | if (NetOurRootPath[0]) |
269 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 270 | |
0ebf04c6 RG |
271 | if (NetOurNISDomain[0]) |
272 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 273 | |
0ebf04c6 RG |
274 | if (NetBootFileSize) |
275 | debug("NetBootFileSize: %d\n", NetBootFileSize); | |
09e3a67d LP |
276 | |
277 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) | |
278 | if (NetNtpServerIP) | |
279 | debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP); | |
280 | #endif | |
232c150a | 281 | } |
09349866 | 282 | |
3861aa5c WD |
283 | /* |
284 | * Handle a BOOTP received packet. | |
285 | */ | |
286 | static void | |
03eb129f LC |
287 | BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
288 | unsigned len) | |
3861aa5c | 289 | { |
3090b7e3 | 290 | struct Bootp_t *bp; |
3861aa5c | 291 | |
0ebf04c6 | 292 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3090b7e3 | 293 | src, dest, len, sizeof(struct Bootp_t)); |
3861aa5c | 294 | |
3090b7e3 | 295 | bp = (struct Bootp_t *)pkt; |
3861aa5c | 296 | |
3090b7e3 JH |
297 | /* Filter out pkts we don't want */ |
298 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
299 | return; |
300 | ||
301 | /* | |
232c150a | 302 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
303 | */ |
304 | #ifdef CONFIG_STATUS_LED | |
3090b7e3 | 305 | status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); |
3861aa5c WD |
306 | #endif |
307 | ||
308 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
309 | ||
310 | /* Retrieve extended information (we must parse the vendor area) */ | |
3090b7e3 | 311 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
77ddac94 | 312 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
313 | |
314 | NetSetTimeout(0, (thand_f *)0); | |
573f14fe | 315 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
3861aa5c | 316 | |
0ebf04c6 | 317 | debug("Got good BOOTP\n"); |
3861aa5c | 318 | |
e4a3d57d | 319 | net_auto_load(); |
3861aa5c | 320 | } |
610f2e9c | 321 | #endif |
3861aa5c WD |
322 | |
323 | /* | |
324 | * Timeout on BOOTP/DHCP request. | |
325 | */ | |
326 | static void | |
327 | BootpTimeout(void) | |
328 | { | |
329 | if (BootpTry >= TIMEOUT_COUNT) { | |
3090b7e3 JH |
330 | puts("\nRetry count exceeded; starting again\n"); |
331 | NetStartAgain(); | |
3861aa5c | 332 | } else { |
3090b7e3 JH |
333 | NetSetTimeout(TIMEOUT, BootpTimeout); |
334 | BootpRequest(); | |
3861aa5c WD |
335 | } |
336 | } | |
337 | ||
338 | /* | |
339 | * Initialize BOOTP extension fields in the request. | |
340 | */ | |
643d1ab2 | 341 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 JH |
342 | static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID, |
343 | IPaddr_t RequestedIP) | |
3861aa5c | 344 | { |
232c150a WD |
345 | u8 *start = e; |
346 | u8 *cnt; | |
d2b5d5c4 JH |
347 | #if defined(CONFIG_BOOTP_PXE) |
348 | char *uuid; | |
349 | size_t vci_strlen; | |
350 | u16 clientarch; | |
351 | #endif | |
232c150a | 352 | |
1fe80d79 | 353 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 354 | u8 *x; |
3861aa5c | 355 | #endif |
1fe80d79 | 356 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 357 | char *hostname; |
fe389a82 | 358 | #endif |
3861aa5c | 359 | |
232c150a WD |
360 | *e++ = 99; /* RFC1048 Magic Cookie */ |
361 | *e++ = 130; | |
362 | *e++ = 83; | |
363 | *e++ = 99; | |
3861aa5c | 364 | |
232c150a WD |
365 | *e++ = 53; /* DHCP Message Type */ |
366 | *e++ = 1; | |
367 | *e++ = message_type; | |
3861aa5c | 368 | |
232c150a WD |
369 | *e++ = 57; /* Maximum DHCP Message Size */ |
370 | *e++ = 2; | |
f8315731 JH |
371 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
372 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
3861aa5c | 373 | |
232c150a | 374 | if (ServerID) { |
3090b7e3 | 375 | int tmp = ntohl(ServerID); |
3861aa5c | 376 | |
232c150a WD |
377 | *e++ = 54; /* ServerID */ |
378 | *e++ = 4; | |
379 | *e++ = tmp >> 24; | |
380 | *e++ = tmp >> 16; | |
381 | *e++ = tmp >> 8; | |
382 | *e++ = tmp & 0xff; | |
383 | } | |
3861aa5c | 384 | |
232c150a | 385 | if (RequestedIP) { |
3090b7e3 | 386 | int tmp = ntohl(RequestedIP); |
3861aa5c | 387 | |
232c150a WD |
388 | *e++ = 50; /* Requested IP */ |
389 | *e++ = 4; | |
390 | *e++ = tmp >> 24; | |
391 | *e++ = tmp >> 16; | |
392 | *e++ = tmp >> 8; | |
393 | *e++ = tmp & 0xff; | |
394 | } | |
1fe80d79 | 395 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
3090b7e3 JH |
396 | hostname = getenv("hostname"); |
397 | if (hostname) { | |
398 | int hostnamelen = strlen(hostname); | |
232c150a WD |
399 | |
400 | *e++ = 12; /* Hostname */ | |
401 | *e++ = hostnamelen; | |
3090b7e3 | 402 | memcpy(e, hostname, hostnamelen); |
232c150a WD |
403 | e += hostnamelen; |
404 | } | |
fe389a82 SR |
405 | #endif |
406 | ||
d2b5d5c4 JH |
407 | #if defined(CONFIG_BOOTP_PXE) |
408 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
409 | *e++ = 93; /* Client System Architecture */ | |
410 | *e++ = 2; | |
411 | *e++ = (clientarch >> 8) & 0xff; | |
412 | *e++ = clientarch & 0xff; | |
413 | ||
414 | *e++ = 94; /* Client Network Interface Identifier */ | |
415 | *e++ = 3; | |
416 | *e++ = 1; /* type field for UNDI */ | |
417 | *e++ = 0; /* major revision */ | |
418 | *e++ = 0; /* minor revision */ | |
419 | ||
420 | uuid = getenv("pxeuuid"); | |
421 | ||
422 | if (uuid) { | |
423 | if (uuid_str_valid(uuid)) { | |
424 | *e++ = 97; /* Client Machine Identifier */ | |
425 | *e++ = 17; | |
426 | *e++ = 0; /* type 0 - UUID */ | |
427 | ||
428 | uuid_str_to_bin(uuid, e); | |
429 | e += 16; | |
430 | } else { | |
431 | printf("Invalid pxeuuid: %s\n", uuid); | |
432 | } | |
433 | } | |
434 | ||
435 | *e++ = 60; /* Vendor Class Identifier */ | |
436 | vci_strlen = strlen(CONFIG_BOOTP_VCI_STRING); | |
437 | *e++ = vci_strlen; | |
438 | memcpy(e, CONFIG_BOOTP_VCI_STRING, vci_strlen); | |
439 | e += vci_strlen; | |
440 | #endif | |
441 | ||
1fe80d79 | 442 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 JH |
443 | x = dhcp_vendorex_prep(e); |
444 | if (x) | |
232c150a | 445 | return x - start; |
3861aa5c WD |
446 | #endif |
447 | ||
232c150a WD |
448 | *e++ = 55; /* Parameter Request List */ |
449 | cnt = e++; /* Pointer to count of requested items */ | |
450 | *cnt = 0; | |
1fe80d79 | 451 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
452 | *e++ = 1; /* Subnet Mask */ |
453 | *cnt += 1; | |
3861aa5c | 454 | #endif |
1fe80d79 | 455 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
456 | *e++ = 2; |
457 | *cnt += 1; | |
458 | #endif | |
1fe80d79 | 459 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
460 | *e++ = 3; /* Router Option */ |
461 | *cnt += 1; | |
3861aa5c | 462 | #endif |
1fe80d79 | 463 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
464 | *e++ = 6; /* DNS Server(s) */ |
465 | *cnt += 1; | |
3861aa5c | 466 | #endif |
1fe80d79 | 467 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
468 | *e++ = 12; /* Hostname */ |
469 | *cnt += 1; | |
3861aa5c | 470 | #endif |
1fe80d79 | 471 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
472 | *e++ = 13; /* Boot File Size */ |
473 | *cnt += 1; | |
3861aa5c | 474 | #endif |
1fe80d79 | 475 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
476 | *e++ = 17; /* Boot path */ |
477 | *cnt += 1; | |
3861aa5c | 478 | #endif |
1fe80d79 | 479 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
480 | *e++ = 40; /* NIS Domain name request */ |
481 | *cnt += 1; | |
ea287deb | 482 | #endif |
1fe80d79 | 483 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
484 | *e++ = 42; |
485 | *cnt += 1; | |
3861aa5c | 486 | #endif |
258ccd68 JL |
487 | /* no options, so back up to avoid sending an empty request list */ |
488 | if (*cnt == 0) | |
489 | e -= 2; | |
490 | ||
232c150a | 491 | *e++ = 255; /* End of the list */ |
3861aa5c | 492 | |
232c150a | 493 | /* Pad to minimal length */ |
3861aa5c | 494 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 495 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 496 | *e++ = 0; |
3861aa5c WD |
497 | #endif |
498 | ||
232c150a | 499 | return e - start; |
3861aa5c WD |
500 | } |
501 | ||
610f2e9c | 502 | #else |
3861aa5c | 503 | /* |
3090b7e3 | 504 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 505 | */ |
3090b7e3 | 506 | static int BootpExtended(u8 *e) |
3861aa5c | 507 | { |
232c150a | 508 | u8 *start = e; |
3861aa5c | 509 | |
232c150a WD |
510 | *e++ = 99; /* RFC1048 Magic Cookie */ |
511 | *e++ = 130; | |
512 | *e++ = 83; | |
513 | *e++ = 99; | |
3861aa5c | 514 | |
643d1ab2 | 515 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
516 | *e++ = 53; /* DHCP Message Type */ |
517 | *e++ = 1; | |
518 | *e++ = DHCP_DISCOVER; | |
519 | ||
520 | *e++ = 57; /* Maximum DHCP Message Size */ | |
521 | *e++ = 2; | |
f8315731 JH |
522 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
523 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
610f2e9c | 524 | #endif |
3861aa5c | 525 | |
1fe80d79 | 526 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
527 | *e++ = 1; /* Subnet mask request */ |
528 | *e++ = 4; | |
529 | e += 4; | |
3861aa5c WD |
530 | #endif |
531 | ||
1fe80d79 | 532 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
533 | *e++ = 3; /* Default gateway request */ |
534 | *e++ = 4; | |
535 | e += 4; | |
3861aa5c WD |
536 | #endif |
537 | ||
1fe80d79 | 538 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
539 | *e++ = 6; /* Domain Name Server */ |
540 | *e++ = 4; | |
541 | e += 4; | |
3861aa5c WD |
542 | #endif |
543 | ||
1fe80d79 | 544 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
545 | *e++ = 12; /* Host name request */ |
546 | *e++ = 32; | |
547 | e += 32; | |
3861aa5c WD |
548 | #endif |
549 | ||
1fe80d79 | 550 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
551 | *e++ = 13; /* Boot file size */ |
552 | *e++ = 2; | |
553 | e += 2; | |
3861aa5c WD |
554 | #endif |
555 | ||
1fe80d79 | 556 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
557 | *e++ = 17; /* Boot path */ |
558 | *e++ = 32; | |
559 | e += 32; | |
3861aa5c WD |
560 | #endif |
561 | ||
1fe80d79 | 562 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
563 | *e++ = 40; /* NIS Domain name request */ |
564 | *e++ = 32; | |
565 | e += 32; | |
3861aa5c | 566 | #endif |
09e3a67d LP |
567 | #if defined(CONFIG_BOOTP_NTPSERVER) |
568 | *e++ = 42; | |
569 | *e++ = 4; | |
570 | e += 4; | |
571 | #endif | |
3861aa5c | 572 | |
232c150a | 573 | *e++ = 255; /* End of the list */ |
3861aa5c | 574 | |
232c150a | 575 | return e - start; |
3861aa5c | 576 | } |
610f2e9c | 577 | #endif |
3861aa5c WD |
578 | |
579 | void | |
3090b7e3 | 580 | BootpRequest(void) |
3861aa5c | 581 | { |
db288a96 | 582 | uchar *pkt, *iphdr; |
3090b7e3 | 583 | struct Bootp_t *bp; |
ae446f56 JH |
584 | int extlen, pktlen, iplen; |
585 | int eth_hdr_size; | |
eafc8db0 JH |
586 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
587 | ulong i, rand_ms; | |
588 | #endif | |
3861aa5c | 589 | |
573f14fe | 590 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
643d1ab2 | 591 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
592 | dhcp_state = INIT; |
593 | #endif | |
594 | ||
595 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
eafc8db0 JH |
596 | if (BootpTry == 0) |
597 | srand_mac(); | |
3861aa5c | 598 | |
eafc8db0 JH |
599 | if (BootpTry <= 2) /* Start with max 1024 * 1ms */ |
600 | rand_ms = rand() >> (22 - BootpTry); | |
601 | else /* After 3rd BOOTP request max 8192 * 1ms */ | |
602 | rand_ms = rand() >> 19; | |
3861aa5c | 603 | |
eafc8db0 JH |
604 | printf("Random delay: %ld ms...\n", rand_ms); |
605 | for (i = 0; i < rand_ms; i++) | |
3861aa5c | 606 | udelay(1000); /*Wait 1ms*/ |
3090b7e3 | 607 | |
3861aa5c WD |
608 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
609 | ||
610 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
611 | pkt = NetTxPacket; | |
3090b7e3 | 612 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 613 | |
ae446f56 JH |
614 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
615 | pkt += eth_hdr_size; | |
3861aa5c WD |
616 | |
617 | /* | |
3090b7e3 JH |
618 | * Next line results in incorrect packet size being transmitted, |
619 | * resulting in errors in some DHCP servers, reporting missing bytes. | |
620 | * Size must be set in packet header after extension length has been | |
621 | * determined. | |
3861aa5c WD |
622 | * C. Hallinan, DS4.COM, Inc. |
623 | */ | |
4b11c916 | 624 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
3090b7e3 | 625 | sizeof (struct Bootp_t)); */ |
4b11c916 | 626 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
594c26f8 | 627 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 628 | |
3090b7e3 | 629 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
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); | |
3090b7e3 JH |
639 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
640 | copy_filename(bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
3861aa5c WD |
641 | |
642 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 643 | #if defined(CONFIG_CMD_DHCP) |
ae446f56 | 644 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 645 | #else |
ae446f56 | 646 | extlen = 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 | */ | |
ae446f56 JH |
665 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
666 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 667 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
49f3bdbb | 668 | NetSetTimeout(SELECT_TIMEOUT, BootpTimeout); |
3861aa5c | 669 | |
643d1ab2 | 670 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 671 | dhcp_state = SELECTING; |
ece223b5 | 672 | net_set_udp_handler(DhcpHandler); |
3861aa5c | 673 | #else |
ece223b5 | 674 | net_set_udp_handler(BootpHandler); |
610f2e9c | 675 | #endif |
3861aa5c WD |
676 | NetSendPacket(NetTxPacket, pktlen); |
677 | } | |
678 | ||
643d1ab2 | 679 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 | 680 | static void DhcpOptionsProcess(uchar *popt, struct 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: | |
3090b7e3 | 692 | NetCopyIP(&NetOurSubnetMask, (popt + 2)); |
232c150a | 693 | break; |
1fe80d79 | 694 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 695 | case 2: /* Time offset */ |
d8d8724b | 696 | to_ptr = &NetTimeOffset; |
3090b7e3 JH |
697 | NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2)); |
698 | NetTimeOffset = ntohl(NetTimeOffset); | |
ea287deb WD |
699 | break; |
700 | #endif | |
232c150a | 701 | case 3: |
3090b7e3 | 702 | NetCopyIP(&NetOurGatewayIP, (popt + 2)); |
232c150a WD |
703 | break; |
704 | case 6: | |
3090b7e3 | 705 | NetCopyIP(&NetOurDNSIP, (popt + 2)); |
1fe80d79 | 706 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
707 | if (*(popt + 1) > 4) |
708 | NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); | |
fe389a82 | 709 | #endif |
232c150a WD |
710 | break; |
711 | case 12: | |
3090b7e3 JH |
712 | size = truncate_sz("Host Name", |
713 | sizeof(NetOurHostName), oplen); | |
714 | memcpy(&NetOurHostName, popt + 2, size); | |
232c150a WD |
715 | NetOurHostName[size] = 0; |
716 | break; | |
717 | case 15: /* Ignore Domain Name Option */ | |
718 | break; | |
719 | case 17: | |
3090b7e3 JH |
720 | size = truncate_sz("Root Path", |
721 | sizeof(NetOurRootPath), oplen); | |
722 | memcpy(&NetOurRootPath, popt + 2, size); | |
232c150a WD |
723 | NetOurRootPath[size] = 0; |
724 | break; | |
1fe80d79 | 725 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb | 726 | case 42: /* NTP server IP */ |
3090b7e3 | 727 | NetCopyIP(&NetNtpServerIP, (popt + 2)); |
ea287deb WD |
728 | break; |
729 | #endif | |
232c150a | 730 | case 51: |
3090b7e3 | 731 | NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2)); |
232c150a WD |
732 | break; |
733 | case 53: /* Ignore Message Type Option */ | |
734 | break; | |
735 | case 54: | |
3090b7e3 | 736 | NetCopyIP(&NetDHCPServerIP, (popt + 2)); |
232c150a WD |
737 | break; |
738 | case 58: /* Ignore Renewal Time Option */ | |
739 | break; | |
740 | case 59: /* Ignore Rebinding Time Option */ | |
741 | break; | |
3b2e4fd9 WD |
742 | case 66: /* Ignore TFTP server name */ |
743 | break; | |
744 | case 67: /* vendor opt bootfile */ | |
745 | /* | |
746 | * I can't use dhcp_vendorex_proc here because I need | |
747 | * to write into the bootp packet - even then I had to | |
748 | * pass the bootp packet pointer into here as the | |
749 | * second arg | |
750 | */ | |
3090b7e3 | 751 | size = truncate_sz("Opt Boot File", |
3b2e4fd9 WD |
752 | sizeof(bp->bp_file), |
753 | oplen); | |
754 | if (bp->bp_file[0] == '\0' && size > 0) { | |
755 | /* | |
756 | * only use vendor boot file if we didn't | |
757 | * receive a boot file in the main non-vendor | |
758 | * part of the packet - god only knows why | |
759 | * some vendors chose not to use this perfectly | |
760 | * good spot to store the boot file (join on | |
761 | * Tru64 Unix) it seems mind bogglingly crazy | |
762 | * to me | |
763 | */ | |
764 | printf("*** WARNING: using vendor " | |
765 | "optional boot file\n"); | |
766 | memcpy(bp->bp_file, popt + 2, size); | |
767 | bp->bp_file[size] = '\0'; | |
768 | } | |
769 | break; | |
232c150a | 770 | default: |
1fe80d79 | 771 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 | 772 | if (dhcp_vendorex_proc(popt)) |
8bde7f77 | 773 | break; |
3861aa5c | 774 | #endif |
3090b7e3 JH |
775 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
776 | " %d\n", *popt); | |
232c150a | 777 | break; |
3861aa5c WD |
778 | } |
779 | popt += oplen + 2; /* Process next option */ | |
780 | } | |
781 | } | |
782 | ||
783 | static int DhcpMessageType(unsigned char *popt) | |
784 | { | |
3090b7e3 | 785 | if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
3861aa5c WD |
786 | return -1; |
787 | ||
788 | popt += 4; | |
3090b7e3 JH |
789 | while (*popt != 0xff) { |
790 | if (*popt == 53) /* DHCP Message Type */ | |
3861aa5c WD |
791 | return *(popt + 2); |
792 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
793 | } | |
794 | return -1; | |
795 | } | |
796 | ||
3090b7e3 | 797 | static void DhcpSendRequestPkt(struct Bootp_t *bp_offer) |
3861aa5c | 798 | { |
db288a96 | 799 | uchar *pkt, *iphdr; |
3090b7e3 | 800 | struct Bootp_t *bp; |
3861aa5c | 801 | int pktlen, iplen, extlen; |
ae446f56 | 802 | int eth_hdr_size; |
47cd00fa | 803 | IPaddr_t OfferedIP; |
3861aa5c | 804 | |
0ebf04c6 | 805 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c | 806 | pkt = NetTxPacket; |
3090b7e3 | 807 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 808 | |
ae446f56 JH |
809 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
810 | pkt += eth_hdr_size; | |
3861aa5c | 811 | |
3090b7e3 | 812 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
594c26f8 | 813 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 814 | |
3090b7e3 | 815 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
816 | bp->bp_op = OP_BOOTREQUEST; |
817 | bp->bp_htype = HWT_ETHER; | |
818 | bp->bp_hlen = HWL_ETHER; | |
819 | bp->bp_hops = 0; | |
49f3bdbb | 820 | bp->bp_secs = htons(get_timer(0) / 1000); |
3090b7e3 JH |
821 | /* Do not set the client IP, your IP, or server IP yet, since it |
822 | * hasn't been ACK'ed by the server yet */ | |
e5c794e4 | 823 | |
c6686703 | 824 | /* |
d82718fe WD |
825 | * RFC3046 requires Relay Agents to discard packets with |
826 | * nonzero and offered giaddr | |
827 | */ | |
828 | NetWriteIP(&bp->bp_giaddr, 0); | |
829 | ||
3090b7e3 | 830 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
3861aa5c WD |
831 | |
832 | /* | |
833 | * ID is the id of the OFFER packet | |
834 | */ | |
835 | ||
836 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
837 | ||
838 | /* | |
839 | * Copy options from OFFER packet if present | |
840 | */ | |
e5c794e4 JF |
841 | |
842 | /* Copy offered IP into the parameters request list */ | |
843 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
3090b7e3 JH |
844 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, |
845 | NetDHCPServerIP, OfferedIP); | |
3861aa5c | 846 | |
ae446f56 JH |
847 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
848 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 849 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
3861aa5c | 850 | |
d9a2f416 AV |
851 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
852 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
853 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
f9623229 | 854 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
3861aa5c WD |
855 | NetSendPacket(NetTxPacket, pktlen); |
856 | } | |
857 | ||
858 | /* | |
859 | * Handle DHCP received packets. | |
860 | */ | |
861 | static void | |
03eb129f LC |
862 | DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
863 | unsigned len) | |
3861aa5c | 864 | { |
3090b7e3 | 865 | struct Bootp_t *bp = (struct Bootp_t *)pkt; |
3861aa5c | 866 | |
0ebf04c6 | 867 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
868 | src, dest, len, dhcp_state); |
869 | ||
3090b7e3 JH |
870 | /* Filter out pkts we don't want */ |
871 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
872 | return; |
873 | ||
3090b7e3 JH |
874 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state:" |
875 | " %d\n", src, dest, len, dhcp_state); | |
3861aa5c WD |
876 | |
877 | switch (dhcp_state) { | |
878 | case SELECTING: | |
879 | /* | |
880 | * Wait an appropriate time for any potential DHCPOFFER packets | |
3090b7e3 JH |
881 | * to arrive. Then select one, and generate DHCPREQUEST |
882 | * response. If filename is in format we recognize, assume it | |
883 | * is a valid OFFER from a server we want. | |
3861aa5c | 884 | */ |
0ebf04c6 | 885 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 886 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 887 | if (strncmp(bp->bp_file, |
6d0f6bcf | 888 | CONFIG_SYS_BOOTFILE_PREFIX, |
3090b7e3 | 889 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
6d0f6bcf | 890 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c | 891 | |
0ebf04c6 | 892 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 893 | dhcp_state = REQUESTING; |
759a51b4 | 894 | |
3090b7e3 JH |
895 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == |
896 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 897 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 898 | |
49f3bdbb | 899 | NetSetTimeout(TIMEOUT, BootpTimeout); |
3861aa5c | 900 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 901 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 902 | } |
6d0f6bcf | 903 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
904 | |
905 | return; | |
906 | break; | |
907 | case REQUESTING: | |
0ebf04c6 | 908 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 909 | |
3090b7e3 JH |
910 | if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { |
911 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == | |
912 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 913 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3090b7e3 JH |
914 | /* Store net params from reply */ |
915 | BootpCopyNetParams(bp); | |
3861aa5c | 916 | dhcp_state = BOUND; |
3090b7e3 JH |
917 | printf("DHCP client bound to address %pI4\n", |
918 | &NetOurIP); | |
573f14fe | 919 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
3090b7e3 | 920 | "bootp_stop"); |
3861aa5c | 921 | |
e4a3d57d | 922 | net_auto_load(); |
3861aa5c WD |
923 | return; |
924 | } | |
925 | break; | |
51dfe138 RB |
926 | case BOUND: |
927 | /* DHCP client bound to address */ | |
928 | break; | |
3861aa5c | 929 | default: |
3090b7e3 | 930 | puts("DHCP: INVALID STATE\n"); |
3861aa5c WD |
931 | break; |
932 | } | |
933 | ||
934 | } | |
935 | ||
936 | void DhcpRequest(void) | |
937 | { | |
938 | BootpRequest(); | |
939 | } | |
992742a5 | 940 | #endif /* CONFIG_CMD_DHCP */ |