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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 | |
21 | ||
3090b7e3 | 22 | #define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ |
3861aa5c | 23 | |
49f3bdbb | 24 | #define TIMEOUT 5000UL /* Milliseconds before trying BOOTP again */ |
232c150a | 25 | #ifndef CONFIG_NET_RETRY_COUNT |
3090b7e3 | 26 | # define TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
3861aa5c | 27 | #else |
232c150a | 28 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) |
3861aa5c WD |
29 | #endif |
30 | ||
3090b7e3 JH |
31 | #define PORT_BOOTPS 67 /* BOOTP server UDP port */ |
32 | #define PORT_BOOTPC 68 /* BOOTP client UDP port */ | |
3861aa5c | 33 | |
3090b7e3 | 34 | #ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ |
232c150a | 35 | #define CONFIG_DHCP_MIN_EXT_LEN 64 |
3861aa5c WD |
36 | #endif |
37 | ||
38 | ulong BootpID; | |
39 | int BootpTry; | |
3861aa5c | 40 | |
643d1ab2 | 41 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 42 | dhcp_state_t dhcp_state = INIT; |
3090b7e3 JH |
43 | unsigned long dhcp_leasetime; |
44 | IPaddr_t NetDHCPServerIP; | |
03eb129f LC |
45 | static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
46 | unsigned len); | |
3861aa5c WD |
47 | |
48 | /* For Debug */ | |
3e38691e WD |
49 | #if 0 |
50 | static char *dhcpmsg2str(int type) | |
3861aa5c WD |
51 | { |
52 | switch (type) { | |
232c150a WD |
53 | case 1: return "DHCPDISCOVER"; break; |
54 | case 2: return "DHCPOFFER"; break; | |
55 | case 3: return "DHCPREQUEST"; break; | |
56 | case 4: return "DHCPDECLINE"; break; | |
57 | case 5: return "DHCPACK"; break; | |
58 | case 6: return "DHCPNACK"; break; | |
59 | case 7: return "DHCPRELEASE"; break; | |
3861aa5c WD |
60 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
61 | } | |
62 | } | |
3e38691e | 63 | #endif |
610f2e9c | 64 | #endif |
3861aa5c WD |
65 | |
66 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) | |
67 | { | |
3090b7e3 | 68 | struct Bootp_t *bp = (struct Bootp_t *) pkt; |
3861aa5c WD |
69 | int retval = 0; |
70 | ||
71 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
72 | retval = -1; | |
f8315731 | 73 | else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE) |
3861aa5c WD |
74 | retval = -2; |
75 | else if (bp->bp_op != OP_BOOTREQUEST && | |
3090b7e3 JH |
76 | bp->bp_op != OP_BOOTREPLY && |
77 | bp->bp_op != DHCP_OFFER && | |
78 | bp->bp_op != DHCP_ACK && | |
79 | bp->bp_op != DHCP_NAK) | |
3861aa5c | 80 | retval = -3; |
3861aa5c WD |
81 | else if (bp->bp_htype != HWT_ETHER) |
82 | retval = -4; | |
83 | else if (bp->bp_hlen != HWL_ETHER) | |
84 | retval = -5; | |
3090b7e3 | 85 | else if (NetReadLong((ulong *)&bp->bp_id) != BootpID) |
3861aa5c | 86 | retval = -6; |
3861aa5c | 87 | |
0ebf04c6 | 88 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
89 | |
90 | return retval; | |
91 | } | |
92 | ||
93 | /* | |
94 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
95 | */ | |
3090b7e3 | 96 | static void BootpCopyNetParams(struct Bootp_t *bp) |
3861aa5c | 97 | { |
5d110f0a | 98 | #if !defined(CONFIG_BOOTP_SERVERIP) |
1752f0fd JH |
99 | IPaddr_t tmp_ip; |
100 | ||
3d3befa7 WD |
101 | NetCopyIP(&tmp_ip, &bp->bp_siaddr); |
102 | if (tmp_ip != 0) | |
103 | NetCopyIP(&NetServerIP, &bp->bp_siaddr); | |
cb487f56 | 104 | memcpy(NetServerEther, ((struct ethernet_hdr *)NetRxPacket)->et_src, 6); |
5d110f0a | 105 | #endif |
1752f0fd | 106 | NetCopyIP(&NetOurIP, &bp->bp_yiaddr); |
3d3befa7 | 107 | if (strlen(bp->bp_file) > 0) |
3090b7e3 | 108 | copy_filename(BootFile, bp->bp_file, sizeof(BootFile)); |
3861aa5c | 109 | |
0ebf04c6 | 110 | debug("Bootfile: %s\n", BootFile); |
3861aa5c WD |
111 | |
112 | /* Propagate to environment: | |
8bde7f77 | 113 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
114 | * not contain a new value |
115 | */ | |
3090b7e3 JH |
116 | if (*BootFile) |
117 | setenv("bootfile", BootFile); | |
3861aa5c WD |
118 | } |
119 | ||
3090b7e3 | 120 | static int truncate_sz(const char *name, int maxlen, int curlen) |
3861aa5c WD |
121 | { |
122 | if (curlen >= maxlen) { | |
3090b7e3 JH |
123 | printf("*** WARNING: %s is too long (%d - max: %d)" |
124 | " - truncated\n", name, curlen, maxlen); | |
3861aa5c WD |
125 | curlen = maxlen - 1; |
126 | } | |
3090b7e3 | 127 | return curlen; |
3861aa5c WD |
128 | } |
129 | ||
643d1ab2 | 130 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 131 | |
3090b7e3 | 132 | static void BootpVendorFieldProcess(u8 *ext) |
3861aa5c | 133 | { |
232c150a | 134 | int size = *(ext + 1); |
3861aa5c | 135 | |
0ebf04c6 | 136 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
3090b7e3 | 137 | *(ext + 1)); |
3861aa5c | 138 | |
232c150a | 139 | NetBootFileSize = 0; |
3861aa5c | 140 | |
232c150a WD |
141 | switch (*ext) { |
142 | /* Fixed length fields */ | |
3090b7e3 | 143 | case 1: /* Subnet mask */ |
3861aa5c | 144 | if (NetOurSubnetMask == 0) |
3090b7e3 | 145 | NetCopyIP(&NetOurSubnetMask, (IPaddr_t *) (ext + 2)); |
3861aa5c | 146 | break; |
3090b7e3 | 147 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 148 | break; |
232c150a | 149 | /* Variable length fields */ |
3090b7e3 JH |
150 | case 3: /* Gateways list */ |
151 | if (NetOurGatewayIP == 0) | |
152 | NetCopyIP(&NetOurGatewayIP, (IPaddr_t *) (ext + 2)); | |
3861aa5c | 153 | break; |
3090b7e3 | 154 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 155 | break; |
3090b7e3 | 156 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
157 | break; |
158 | case 6: | |
3090b7e3 JH |
159 | if (NetOurDNSIP == 0) |
160 | NetCopyIP(&NetOurDNSIP, (IPaddr_t *) (ext + 2)); | |
1fe80d79 | 161 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
162 | if ((NetOurDNS2IP == 0) && (size > 4)) |
163 | NetCopyIP(&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4)); | |
fe389a82 | 164 | #endif |
3861aa5c | 165 | break; |
3090b7e3 | 166 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 167 | break; |
3090b7e3 | 168 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 169 | break; |
3090b7e3 | 170 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 171 | break; |
3090b7e3 | 172 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 173 | break; |
3090b7e3 | 174 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 175 | break; |
3090b7e3 | 176 | case 12: /* Host name */ |
3861aa5c | 177 | if (NetOurHostName[0] == 0) { |
3090b7e3 JH |
178 | size = truncate_sz("Host Name", |
179 | sizeof(NetOurHostName), size); | |
180 | memcpy(&NetOurHostName, ext + 2, size); | |
232c150a | 181 | NetOurHostName[size] = 0; |
3861aa5c WD |
182 | } |
183 | break; | |
3090b7e3 | 184 | case 13: /* Boot file size */ |
3861aa5c | 185 | if (size == 2) |
3090b7e3 | 186 | NetBootFileSize = ntohs(*(ushort *) (ext + 2)); |
3861aa5c | 187 | else if (size == 4) |
3090b7e3 | 188 | NetBootFileSize = ntohl(*(ulong *) (ext + 2)); |
3861aa5c | 189 | break; |
3090b7e3 | 190 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 191 | break; |
3090b7e3 | 192 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 193 | break; |
3090b7e3 | 194 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 195 | break; |
3090b7e3 | 196 | case 17: /* Root path */ |
3861aa5c | 197 | if (NetOurRootPath[0] == 0) { |
3090b7e3 JH |
198 | size = truncate_sz("Root Path", |
199 | sizeof(NetOurRootPath), size); | |
200 | memcpy(&NetOurRootPath, ext + 2, size); | |
232c150a | 201 | NetOurRootPath[size] = 0; |
3861aa5c WD |
202 | } |
203 | break; | |
3090b7e3 | 204 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 205 | /* |
8bde7f77 WD |
206 | * This can be used to send the information of the |
207 | * vendor area in another file that the client can | |
208 | * access via TFTP. | |
3861aa5c WD |
209 | */ |
210 | break; | |
232c150a | 211 | /* IP host layer fields */ |
3090b7e3 | 212 | case 40: /* NIS Domain name */ |
3861aa5c | 213 | if (NetOurNISDomain[0] == 0) { |
3090b7e3 JH |
214 | size = truncate_sz("NIS Domain Name", |
215 | sizeof(NetOurNISDomain), size); | |
216 | memcpy(&NetOurNISDomain, ext + 2, size); | |
232c150a | 217 | NetOurNISDomain[size] = 0; |
3861aa5c WD |
218 | } |
219 | break; | |
09e3a67d LP |
220 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
221 | case 42: /* NTP server IP */ | |
222 | NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2)); | |
223 | break; | |
224 | #endif | |
232c150a | 225 | /* Application layer fields */ |
3090b7e3 | 226 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 227 | /* |
8bde7f77 WD |
228 | * Binary information to exchange specific |
229 | * product information. | |
3861aa5c WD |
230 | */ |
231 | break; | |
232c150a WD |
232 | /* Reserved (custom) fields (128..254) */ |
233 | } | |
3861aa5c WD |
234 | } |
235 | ||
3090b7e3 | 236 | static void BootpVendorProcess(u8 *ext, int size) |
3861aa5c | 237 | { |
232c150a | 238 | u8 *end = ext + size; |
3861aa5c | 239 | |
0ebf04c6 | 240 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 241 | |
232c150a WD |
242 | while ((ext < end) && (*ext != 0xff)) { |
243 | if (*ext == 0) { | |
244 | ext++; | |
245 | } else { | |
246 | u8 *opt = ext; | |
247 | ||
248 | ext += ext[1] + 2; | |
249 | if (ext <= end) | |
3090b7e3 | 250 | BootpVendorFieldProcess(opt); |
232c150a | 251 | } |
3861aa5c | 252 | } |
3861aa5c | 253 | |
3090b7e3 | 254 | debug("[BOOTP] Received fields:\n"); |
b6446b67 | 255 | if (NetOurSubnetMask) |
0ebf04c6 | 256 | debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask); |
232c150a | 257 | |
b6446b67 | 258 | if (NetOurGatewayIP) |
0ebf04c6 | 259 | debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP); |
232c150a | 260 | |
0ebf04c6 RG |
261 | if (NetBootFileSize) |
262 | debug("NetBootFileSize : %d\n", NetBootFileSize); | |
3861aa5c | 263 | |
0ebf04c6 RG |
264 | if (NetOurHostName[0]) |
265 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 266 | |
0ebf04c6 RG |
267 | if (NetOurRootPath[0]) |
268 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 269 | |
0ebf04c6 RG |
270 | if (NetOurNISDomain[0]) |
271 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 272 | |
0ebf04c6 RG |
273 | if (NetBootFileSize) |
274 | debug("NetBootFileSize: %d\n", NetBootFileSize); | |
09e3a67d LP |
275 | |
276 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) | |
277 | if (NetNtpServerIP) | |
278 | debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP); | |
279 | #endif | |
232c150a | 280 | } |
09349866 | 281 | |
3861aa5c WD |
282 | /* |
283 | * Handle a BOOTP received packet. | |
284 | */ | |
285 | static void | |
03eb129f LC |
286 | BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
287 | unsigned len) | |
3861aa5c | 288 | { |
3090b7e3 | 289 | struct Bootp_t *bp; |
3861aa5c | 290 | |
0ebf04c6 | 291 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3090b7e3 | 292 | src, dest, len, sizeof(struct Bootp_t)); |
3861aa5c | 293 | |
3090b7e3 | 294 | bp = (struct Bootp_t *)pkt; |
3861aa5c | 295 | |
3090b7e3 JH |
296 | /* Filter out pkts we don't want */ |
297 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
298 | return; |
299 | ||
300 | /* | |
232c150a | 301 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
302 | */ |
303 | #ifdef CONFIG_STATUS_LED | |
3090b7e3 | 304 | status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); |
3861aa5c WD |
305 | #endif |
306 | ||
307 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
308 | ||
309 | /* Retrieve extended information (we must parse the vendor area) */ | |
3090b7e3 | 310 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
77ddac94 | 311 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
312 | |
313 | NetSetTimeout(0, (thand_f *)0); | |
573f14fe | 314 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
3861aa5c | 315 | |
0ebf04c6 | 316 | debug("Got good BOOTP\n"); |
3861aa5c | 317 | |
e4a3d57d | 318 | net_auto_load(); |
3861aa5c | 319 | } |
610f2e9c | 320 | #endif |
3861aa5c WD |
321 | |
322 | /* | |
323 | * Timeout on BOOTP/DHCP request. | |
324 | */ | |
325 | static void | |
326 | BootpTimeout(void) | |
327 | { | |
328 | if (BootpTry >= TIMEOUT_COUNT) { | |
2c00e099 JH |
329 | #ifdef CONFIG_BOOTP_MAY_FAIL |
330 | puts("\nRetry count exceeded\n"); | |
331 | NetSetState(NETLOOP_FAIL); | |
332 | #else | |
3090b7e3 JH |
333 | puts("\nRetry count exceeded; starting again\n"); |
334 | NetStartAgain(); | |
2c00e099 | 335 | #endif |
3861aa5c | 336 | } else { |
3090b7e3 JH |
337 | NetSetTimeout(TIMEOUT, BootpTimeout); |
338 | BootpRequest(); | |
3861aa5c WD |
339 | } |
340 | } | |
341 | ||
342 | /* | |
343 | * Initialize BOOTP extension fields in the request. | |
344 | */ | |
643d1ab2 | 345 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 JH |
346 | static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID, |
347 | IPaddr_t RequestedIP) | |
3861aa5c | 348 | { |
232c150a WD |
349 | u8 *start = e; |
350 | u8 *cnt; | |
d2b5d5c4 JH |
351 | #if defined(CONFIG_BOOTP_PXE) |
352 | char *uuid; | |
353 | size_t vci_strlen; | |
354 | u16 clientarch; | |
355 | #endif | |
232c150a | 356 | |
1fe80d79 | 357 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 358 | u8 *x; |
3861aa5c | 359 | #endif |
1fe80d79 | 360 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 361 | char *hostname; |
fe389a82 | 362 | #endif |
3861aa5c | 363 | |
232c150a WD |
364 | *e++ = 99; /* RFC1048 Magic Cookie */ |
365 | *e++ = 130; | |
366 | *e++ = 83; | |
367 | *e++ = 99; | |
3861aa5c | 368 | |
232c150a WD |
369 | *e++ = 53; /* DHCP Message Type */ |
370 | *e++ = 1; | |
371 | *e++ = message_type; | |
3861aa5c | 372 | |
232c150a WD |
373 | *e++ = 57; /* Maximum DHCP Message Size */ |
374 | *e++ = 2; | |
f8315731 JH |
375 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
376 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
3861aa5c | 377 | |
232c150a | 378 | if (ServerID) { |
3090b7e3 | 379 | int tmp = ntohl(ServerID); |
3861aa5c | 380 | |
232c150a WD |
381 | *e++ = 54; /* ServerID */ |
382 | *e++ = 4; | |
383 | *e++ = tmp >> 24; | |
384 | *e++ = tmp >> 16; | |
385 | *e++ = tmp >> 8; | |
386 | *e++ = tmp & 0xff; | |
387 | } | |
3861aa5c | 388 | |
232c150a | 389 | if (RequestedIP) { |
3090b7e3 | 390 | int tmp = ntohl(RequestedIP); |
3861aa5c | 391 | |
232c150a WD |
392 | *e++ = 50; /* Requested IP */ |
393 | *e++ = 4; | |
394 | *e++ = tmp >> 24; | |
395 | *e++ = tmp >> 16; | |
396 | *e++ = tmp >> 8; | |
397 | *e++ = tmp & 0xff; | |
398 | } | |
1fe80d79 | 399 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
3090b7e3 JH |
400 | hostname = getenv("hostname"); |
401 | if (hostname) { | |
402 | int hostnamelen = strlen(hostname); | |
232c150a WD |
403 | |
404 | *e++ = 12; /* Hostname */ | |
405 | *e++ = hostnamelen; | |
3090b7e3 | 406 | memcpy(e, hostname, hostnamelen); |
232c150a WD |
407 | e += hostnamelen; |
408 | } | |
fe389a82 SR |
409 | #endif |
410 | ||
d2b5d5c4 JH |
411 | #if defined(CONFIG_BOOTP_PXE) |
412 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
413 | *e++ = 93; /* Client System Architecture */ | |
414 | *e++ = 2; | |
415 | *e++ = (clientarch >> 8) & 0xff; | |
416 | *e++ = clientarch & 0xff; | |
417 | ||
418 | *e++ = 94; /* Client Network Interface Identifier */ | |
419 | *e++ = 3; | |
420 | *e++ = 1; /* type field for UNDI */ | |
421 | *e++ = 0; /* major revision */ | |
422 | *e++ = 0; /* minor revision */ | |
423 | ||
424 | uuid = getenv("pxeuuid"); | |
425 | ||
426 | if (uuid) { | |
427 | if (uuid_str_valid(uuid)) { | |
428 | *e++ = 97; /* Client Machine Identifier */ | |
429 | *e++ = 17; | |
430 | *e++ = 0; /* type 0 - UUID */ | |
431 | ||
432 | uuid_str_to_bin(uuid, e); | |
433 | e += 16; | |
434 | } else { | |
435 | printf("Invalid pxeuuid: %s\n", uuid); | |
436 | } | |
437 | } | |
438 | ||
439 | *e++ = 60; /* Vendor Class Identifier */ | |
440 | vci_strlen = strlen(CONFIG_BOOTP_VCI_STRING); | |
441 | *e++ = vci_strlen; | |
442 | memcpy(e, CONFIG_BOOTP_VCI_STRING, vci_strlen); | |
443 | e += vci_strlen; | |
444 | #endif | |
445 | ||
1fe80d79 | 446 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 JH |
447 | x = dhcp_vendorex_prep(e); |
448 | if (x) | |
232c150a | 449 | return x - start; |
3861aa5c WD |
450 | #endif |
451 | ||
232c150a WD |
452 | *e++ = 55; /* Parameter Request List */ |
453 | cnt = e++; /* Pointer to count of requested items */ | |
454 | *cnt = 0; | |
1fe80d79 | 455 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
456 | *e++ = 1; /* Subnet Mask */ |
457 | *cnt += 1; | |
3861aa5c | 458 | #endif |
1fe80d79 | 459 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
460 | *e++ = 2; |
461 | *cnt += 1; | |
462 | #endif | |
1fe80d79 | 463 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
464 | *e++ = 3; /* Router Option */ |
465 | *cnt += 1; | |
3861aa5c | 466 | #endif |
1fe80d79 | 467 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
468 | *e++ = 6; /* DNS Server(s) */ |
469 | *cnt += 1; | |
3861aa5c | 470 | #endif |
1fe80d79 | 471 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
472 | *e++ = 12; /* Hostname */ |
473 | *cnt += 1; | |
3861aa5c | 474 | #endif |
1fe80d79 | 475 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
476 | *e++ = 13; /* Boot File Size */ |
477 | *cnt += 1; | |
3861aa5c | 478 | #endif |
1fe80d79 | 479 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
480 | *e++ = 17; /* Boot path */ |
481 | *cnt += 1; | |
3861aa5c | 482 | #endif |
1fe80d79 | 483 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
484 | *e++ = 40; /* NIS Domain name request */ |
485 | *cnt += 1; | |
ea287deb | 486 | #endif |
1fe80d79 | 487 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
488 | *e++ = 42; |
489 | *cnt += 1; | |
3861aa5c | 490 | #endif |
258ccd68 JL |
491 | /* no options, so back up to avoid sending an empty request list */ |
492 | if (*cnt == 0) | |
493 | e -= 2; | |
494 | ||
232c150a | 495 | *e++ = 255; /* End of the list */ |
3861aa5c | 496 | |
232c150a | 497 | /* Pad to minimal length */ |
3861aa5c | 498 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 499 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 500 | *e++ = 0; |
3861aa5c WD |
501 | #endif |
502 | ||
232c150a | 503 | return e - start; |
3861aa5c WD |
504 | } |
505 | ||
610f2e9c | 506 | #else |
3861aa5c | 507 | /* |
3090b7e3 | 508 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 509 | */ |
3090b7e3 | 510 | static int BootpExtended(u8 *e) |
3861aa5c | 511 | { |
232c150a | 512 | u8 *start = e; |
3861aa5c | 513 | |
232c150a WD |
514 | *e++ = 99; /* RFC1048 Magic Cookie */ |
515 | *e++ = 130; | |
516 | *e++ = 83; | |
517 | *e++ = 99; | |
3861aa5c | 518 | |
643d1ab2 | 519 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
520 | *e++ = 53; /* DHCP Message Type */ |
521 | *e++ = 1; | |
522 | *e++ = DHCP_DISCOVER; | |
523 | ||
524 | *e++ = 57; /* Maximum DHCP Message Size */ | |
525 | *e++ = 2; | |
f8315731 JH |
526 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
527 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
610f2e9c | 528 | #endif |
3861aa5c | 529 | |
1fe80d79 | 530 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
531 | *e++ = 1; /* Subnet mask request */ |
532 | *e++ = 4; | |
533 | e += 4; | |
3861aa5c WD |
534 | #endif |
535 | ||
1fe80d79 | 536 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
537 | *e++ = 3; /* Default gateway request */ |
538 | *e++ = 4; | |
539 | e += 4; | |
3861aa5c WD |
540 | #endif |
541 | ||
1fe80d79 | 542 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
543 | *e++ = 6; /* Domain Name Server */ |
544 | *e++ = 4; | |
545 | e += 4; | |
3861aa5c WD |
546 | #endif |
547 | ||
1fe80d79 | 548 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
549 | *e++ = 12; /* Host name request */ |
550 | *e++ = 32; | |
551 | e += 32; | |
3861aa5c WD |
552 | #endif |
553 | ||
1fe80d79 | 554 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
555 | *e++ = 13; /* Boot file size */ |
556 | *e++ = 2; | |
557 | e += 2; | |
3861aa5c WD |
558 | #endif |
559 | ||
1fe80d79 | 560 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
561 | *e++ = 17; /* Boot path */ |
562 | *e++ = 32; | |
563 | e += 32; | |
3861aa5c WD |
564 | #endif |
565 | ||
1fe80d79 | 566 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
567 | *e++ = 40; /* NIS Domain name request */ |
568 | *e++ = 32; | |
569 | e += 32; | |
3861aa5c | 570 | #endif |
09e3a67d LP |
571 | #if defined(CONFIG_BOOTP_NTPSERVER) |
572 | *e++ = 42; | |
573 | *e++ = 4; | |
574 | e += 4; | |
575 | #endif | |
3861aa5c | 576 | |
232c150a | 577 | *e++ = 255; /* End of the list */ |
3861aa5c | 578 | |
232c150a | 579 | return e - start; |
3861aa5c | 580 | } |
610f2e9c | 581 | #endif |
3861aa5c WD |
582 | |
583 | void | |
3090b7e3 | 584 | BootpRequest(void) |
3861aa5c | 585 | { |
db288a96 | 586 | uchar *pkt, *iphdr; |
3090b7e3 | 587 | struct Bootp_t *bp; |
ae446f56 JH |
588 | int extlen, pktlen, iplen; |
589 | int eth_hdr_size; | |
eafc8db0 JH |
590 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
591 | ulong i, rand_ms; | |
592 | #endif | |
3861aa5c | 593 | |
573f14fe | 594 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
643d1ab2 | 595 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
596 | dhcp_state = INIT; |
597 | #endif | |
598 | ||
599 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
eafc8db0 JH |
600 | if (BootpTry == 0) |
601 | srand_mac(); | |
3861aa5c | 602 | |
eafc8db0 JH |
603 | if (BootpTry <= 2) /* Start with max 1024 * 1ms */ |
604 | rand_ms = rand() >> (22 - BootpTry); | |
605 | else /* After 3rd BOOTP request max 8192 * 1ms */ | |
606 | rand_ms = rand() >> 19; | |
3861aa5c | 607 | |
eafc8db0 JH |
608 | printf("Random delay: %ld ms...\n", rand_ms); |
609 | for (i = 0; i < rand_ms; i++) | |
3861aa5c | 610 | udelay(1000); /*Wait 1ms*/ |
3090b7e3 | 611 | |
3861aa5c WD |
612 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
613 | ||
614 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
615 | pkt = NetTxPacket; | |
3090b7e3 | 616 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 617 | |
ae446f56 JH |
618 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
619 | pkt += eth_hdr_size; | |
3861aa5c WD |
620 | |
621 | /* | |
3090b7e3 JH |
622 | * Next line results in incorrect packet size being transmitted, |
623 | * resulting in errors in some DHCP servers, reporting missing bytes. | |
624 | * Size must be set in packet header after extension length has been | |
625 | * determined. | |
3861aa5c WD |
626 | * C. Hallinan, DS4.COM, Inc. |
627 | */ | |
4b11c916 | 628 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
3090b7e3 | 629 | sizeof (struct Bootp_t)); */ |
4b11c916 | 630 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
594c26f8 | 631 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 632 | |
3090b7e3 | 633 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
634 | bp->bp_op = OP_BOOTREQUEST; |
635 | bp->bp_htype = HWT_ETHER; | |
636 | bp->bp_hlen = HWL_ETHER; | |
637 | bp->bp_hops = 0; | |
49f3bdbb | 638 | bp->bp_secs = htons(get_timer(0) / 1000); |
3861aa5c WD |
639 | NetWriteIP(&bp->bp_ciaddr, 0); |
640 | NetWriteIP(&bp->bp_yiaddr, 0); | |
641 | NetWriteIP(&bp->bp_siaddr, 0); | |
642 | NetWriteIP(&bp->bp_giaddr, 0); | |
3090b7e3 JH |
643 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
644 | copy_filename(bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
3861aa5c WD |
645 | |
646 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 647 | #if defined(CONFIG_CMD_DHCP) |
ae446f56 | 648 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 649 | #else |
ae446f56 | 650 | extlen = BootpExtended((u8 *)bp->bp_vend); |
610f2e9c | 651 | #endif |
3861aa5c WD |
652 | |
653 | /* | |
654 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 655 | * plus the current time in ms. |
3861aa5c WD |
656 | */ |
657 | BootpID = ((ulong)NetOurEther[2] << 24) | |
658 | | ((ulong)NetOurEther[3] << 16) | |
659 | | ((ulong)NetOurEther[4] << 8) | |
660 | | (ulong)NetOurEther[5]; | |
661 | BootpID += get_timer(0); | |
232c150a | 662 | BootpID = htonl(BootpID); |
3861aa5c WD |
663 | NetCopyLong(&bp->bp_id, &BootpID); |
664 | ||
665 | /* | |
666 | * Calculate proper packet lengths taking into account the | |
667 | * variable size of the options field | |
668 | */ | |
ae446f56 JH |
669 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
670 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 671 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
49f3bdbb | 672 | NetSetTimeout(SELECT_TIMEOUT, BootpTimeout); |
3861aa5c | 673 | |
643d1ab2 | 674 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 675 | dhcp_state = SELECTING; |
ece223b5 | 676 | net_set_udp_handler(DhcpHandler); |
3861aa5c | 677 | #else |
ece223b5 | 678 | net_set_udp_handler(BootpHandler); |
610f2e9c | 679 | #endif |
3861aa5c WD |
680 | NetSendPacket(NetTxPacket, pktlen); |
681 | } | |
682 | ||
643d1ab2 | 683 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 | 684 | static void DhcpOptionsProcess(uchar *popt, struct Bootp_t *bp) |
3861aa5c | 685 | { |
3e38691e | 686 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 687 | int oplen, size; |
d8d8724b WD |
688 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
689 | int *to_ptr; | |
690 | #endif | |
3861aa5c | 691 | |
232c150a | 692 | while (popt < end && *popt != 0xff) { |
3861aa5c | 693 | oplen = *(popt + 1); |
232c150a WD |
694 | switch (*popt) { |
695 | case 1: | |
3090b7e3 | 696 | NetCopyIP(&NetOurSubnetMask, (popt + 2)); |
232c150a | 697 | break; |
1fe80d79 | 698 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 699 | case 2: /* Time offset */ |
d8d8724b | 700 | to_ptr = &NetTimeOffset; |
3090b7e3 JH |
701 | NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2)); |
702 | NetTimeOffset = ntohl(NetTimeOffset); | |
ea287deb WD |
703 | break; |
704 | #endif | |
232c150a | 705 | case 3: |
3090b7e3 | 706 | NetCopyIP(&NetOurGatewayIP, (popt + 2)); |
232c150a WD |
707 | break; |
708 | case 6: | |
3090b7e3 | 709 | NetCopyIP(&NetOurDNSIP, (popt + 2)); |
1fe80d79 | 710 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
711 | if (*(popt + 1) > 4) |
712 | NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); | |
fe389a82 | 713 | #endif |
232c150a WD |
714 | break; |
715 | case 12: | |
3090b7e3 JH |
716 | size = truncate_sz("Host Name", |
717 | sizeof(NetOurHostName), oplen); | |
718 | memcpy(&NetOurHostName, popt + 2, size); | |
232c150a WD |
719 | NetOurHostName[size] = 0; |
720 | break; | |
721 | case 15: /* Ignore Domain Name Option */ | |
722 | break; | |
723 | case 17: | |
3090b7e3 JH |
724 | size = truncate_sz("Root Path", |
725 | sizeof(NetOurRootPath), oplen); | |
726 | memcpy(&NetOurRootPath, popt + 2, size); | |
232c150a WD |
727 | NetOurRootPath[size] = 0; |
728 | break; | |
1fe80d79 | 729 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb | 730 | case 42: /* NTP server IP */ |
3090b7e3 | 731 | NetCopyIP(&NetNtpServerIP, (popt + 2)); |
ea287deb WD |
732 | break; |
733 | #endif | |
232c150a | 734 | case 51: |
3090b7e3 | 735 | NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2)); |
232c150a WD |
736 | break; |
737 | case 53: /* Ignore Message Type Option */ | |
738 | break; | |
739 | case 54: | |
3090b7e3 | 740 | NetCopyIP(&NetDHCPServerIP, (popt + 2)); |
232c150a WD |
741 | break; |
742 | case 58: /* Ignore Renewal Time Option */ | |
743 | break; | |
744 | case 59: /* Ignore Rebinding Time Option */ | |
745 | break; | |
3b2e4fd9 WD |
746 | case 66: /* Ignore TFTP server name */ |
747 | break; | |
748 | case 67: /* vendor opt bootfile */ | |
749 | /* | |
750 | * I can't use dhcp_vendorex_proc here because I need | |
751 | * to write into the bootp packet - even then I had to | |
752 | * pass the bootp packet pointer into here as the | |
753 | * second arg | |
754 | */ | |
3090b7e3 | 755 | size = truncate_sz("Opt Boot File", |
3b2e4fd9 WD |
756 | sizeof(bp->bp_file), |
757 | oplen); | |
758 | if (bp->bp_file[0] == '\0' && size > 0) { | |
759 | /* | |
760 | * only use vendor boot file if we didn't | |
761 | * receive a boot file in the main non-vendor | |
762 | * part of the packet - god only knows why | |
763 | * some vendors chose not to use this perfectly | |
764 | * good spot to store the boot file (join on | |
765 | * Tru64 Unix) it seems mind bogglingly crazy | |
766 | * to me | |
767 | */ | |
768 | printf("*** WARNING: using vendor " | |
769 | "optional boot file\n"); | |
770 | memcpy(bp->bp_file, popt + 2, size); | |
771 | bp->bp_file[size] = '\0'; | |
772 | } | |
773 | break; | |
232c150a | 774 | default: |
1fe80d79 | 775 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 | 776 | if (dhcp_vendorex_proc(popt)) |
8bde7f77 | 777 | break; |
3861aa5c | 778 | #endif |
3090b7e3 JH |
779 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
780 | " %d\n", *popt); | |
232c150a | 781 | break; |
3861aa5c WD |
782 | } |
783 | popt += oplen + 2; /* Process next option */ | |
784 | } | |
785 | } | |
786 | ||
787 | static int DhcpMessageType(unsigned char *popt) | |
788 | { | |
3090b7e3 | 789 | if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
3861aa5c WD |
790 | return -1; |
791 | ||
792 | popt += 4; | |
3090b7e3 JH |
793 | while (*popt != 0xff) { |
794 | if (*popt == 53) /* DHCP Message Type */ | |
3861aa5c WD |
795 | return *(popt + 2); |
796 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
797 | } | |
798 | return -1; | |
799 | } | |
800 | ||
3090b7e3 | 801 | static void DhcpSendRequestPkt(struct Bootp_t *bp_offer) |
3861aa5c | 802 | { |
db288a96 | 803 | uchar *pkt, *iphdr; |
3090b7e3 | 804 | struct Bootp_t *bp; |
3861aa5c | 805 | int pktlen, iplen, extlen; |
ae446f56 | 806 | int eth_hdr_size; |
47cd00fa | 807 | IPaddr_t OfferedIP; |
3861aa5c | 808 | |
0ebf04c6 | 809 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c | 810 | pkt = NetTxPacket; |
3090b7e3 | 811 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 812 | |
ae446f56 JH |
813 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
814 | pkt += eth_hdr_size; | |
3861aa5c | 815 | |
3090b7e3 | 816 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
594c26f8 | 817 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 818 | |
3090b7e3 | 819 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
820 | bp->bp_op = OP_BOOTREQUEST; |
821 | bp->bp_htype = HWT_ETHER; | |
822 | bp->bp_hlen = HWL_ETHER; | |
823 | bp->bp_hops = 0; | |
49f3bdbb | 824 | bp->bp_secs = htons(get_timer(0) / 1000); |
3090b7e3 JH |
825 | /* Do not set the client IP, your IP, or server IP yet, since it |
826 | * hasn't been ACK'ed by the server yet */ | |
e5c794e4 | 827 | |
c6686703 | 828 | /* |
d82718fe WD |
829 | * RFC3046 requires Relay Agents to discard packets with |
830 | * nonzero and offered giaddr | |
831 | */ | |
832 | NetWriteIP(&bp->bp_giaddr, 0); | |
833 | ||
3090b7e3 | 834 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
3861aa5c WD |
835 | |
836 | /* | |
837 | * ID is the id of the OFFER packet | |
838 | */ | |
839 | ||
840 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
841 | ||
842 | /* | |
843 | * Copy options from OFFER packet if present | |
844 | */ | |
e5c794e4 JF |
845 | |
846 | /* Copy offered IP into the parameters request list */ | |
847 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
3090b7e3 JH |
848 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, |
849 | NetDHCPServerIP, OfferedIP); | |
3861aa5c | 850 | |
ae446f56 JH |
851 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
852 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 853 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
3861aa5c | 854 | |
d9a2f416 AV |
855 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
856 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
857 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
f9623229 | 858 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
3861aa5c WD |
859 | NetSendPacket(NetTxPacket, pktlen); |
860 | } | |
861 | ||
862 | /* | |
863 | * Handle DHCP received packets. | |
864 | */ | |
865 | static void | |
03eb129f LC |
866 | DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
867 | unsigned len) | |
3861aa5c | 868 | { |
3090b7e3 | 869 | struct Bootp_t *bp = (struct Bootp_t *)pkt; |
3861aa5c | 870 | |
0ebf04c6 | 871 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
872 | src, dest, len, dhcp_state); |
873 | ||
3090b7e3 JH |
874 | /* Filter out pkts we don't want */ |
875 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
876 | return; |
877 | ||
3090b7e3 JH |
878 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state:" |
879 | " %d\n", src, dest, len, dhcp_state); | |
3861aa5c WD |
880 | |
881 | switch (dhcp_state) { | |
882 | case SELECTING: | |
883 | /* | |
884 | * Wait an appropriate time for any potential DHCPOFFER packets | |
3090b7e3 JH |
885 | * to arrive. Then select one, and generate DHCPREQUEST |
886 | * response. If filename is in format we recognize, assume it | |
887 | * is a valid OFFER from a server we want. | |
3861aa5c | 888 | */ |
0ebf04c6 | 889 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 890 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 891 | if (strncmp(bp->bp_file, |
6d0f6bcf | 892 | CONFIG_SYS_BOOTFILE_PREFIX, |
3090b7e3 | 893 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
6d0f6bcf | 894 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c | 895 | |
0ebf04c6 | 896 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 897 | dhcp_state = REQUESTING; |
759a51b4 | 898 | |
3090b7e3 JH |
899 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == |
900 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 901 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 902 | |
49f3bdbb | 903 | NetSetTimeout(TIMEOUT, BootpTimeout); |
3861aa5c | 904 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 905 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 906 | } |
6d0f6bcf | 907 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
908 | |
909 | return; | |
910 | break; | |
911 | case REQUESTING: | |
0ebf04c6 | 912 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 913 | |
3090b7e3 JH |
914 | if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { |
915 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == | |
916 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 917 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3090b7e3 JH |
918 | /* Store net params from reply */ |
919 | BootpCopyNetParams(bp); | |
3861aa5c | 920 | dhcp_state = BOUND; |
3090b7e3 JH |
921 | printf("DHCP client bound to address %pI4\n", |
922 | &NetOurIP); | |
573f14fe | 923 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
3090b7e3 | 924 | "bootp_stop"); |
3861aa5c | 925 | |
e4a3d57d | 926 | net_auto_load(); |
3861aa5c WD |
927 | return; |
928 | } | |
929 | break; | |
51dfe138 RB |
930 | case BOUND: |
931 | /* DHCP client bound to address */ | |
932 | break; | |
3861aa5c | 933 | default: |
3090b7e3 | 934 | puts("DHCP: INVALID STATE\n"); |
3861aa5c WD |
935 | break; |
936 | } | |
937 | ||
938 | } | |
939 | ||
940 | void DhcpRequest(void) | |
941 | { | |
942 | BootpRequest(); | |
943 | } | |
992742a5 | 944 | #endif /* CONFIG_CMD_DHCP */ |