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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) { | |
3090b7e3 JH |
329 | puts("\nRetry count exceeded; starting again\n"); |
330 | NetStartAgain(); | |
3861aa5c | 331 | } else { |
3090b7e3 JH |
332 | NetSetTimeout(TIMEOUT, BootpTimeout); |
333 | BootpRequest(); | |
3861aa5c WD |
334 | } |
335 | } | |
336 | ||
337 | /* | |
338 | * Initialize BOOTP extension fields in the request. | |
339 | */ | |
643d1ab2 | 340 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 JH |
341 | static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID, |
342 | IPaddr_t RequestedIP) | |
3861aa5c | 343 | { |
232c150a WD |
344 | u8 *start = e; |
345 | u8 *cnt; | |
d2b5d5c4 JH |
346 | #if defined(CONFIG_BOOTP_PXE) |
347 | char *uuid; | |
348 | size_t vci_strlen; | |
349 | u16 clientarch; | |
350 | #endif | |
232c150a | 351 | |
1fe80d79 | 352 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 353 | u8 *x; |
3861aa5c | 354 | #endif |
1fe80d79 | 355 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 356 | char *hostname; |
fe389a82 | 357 | #endif |
3861aa5c | 358 | |
232c150a WD |
359 | *e++ = 99; /* RFC1048 Magic Cookie */ |
360 | *e++ = 130; | |
361 | *e++ = 83; | |
362 | *e++ = 99; | |
3861aa5c | 363 | |
232c150a WD |
364 | *e++ = 53; /* DHCP Message Type */ |
365 | *e++ = 1; | |
366 | *e++ = message_type; | |
3861aa5c | 367 | |
232c150a WD |
368 | *e++ = 57; /* Maximum DHCP Message Size */ |
369 | *e++ = 2; | |
f8315731 JH |
370 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
371 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
3861aa5c | 372 | |
232c150a | 373 | if (ServerID) { |
3090b7e3 | 374 | int tmp = ntohl(ServerID); |
3861aa5c | 375 | |
232c150a WD |
376 | *e++ = 54; /* ServerID */ |
377 | *e++ = 4; | |
378 | *e++ = tmp >> 24; | |
379 | *e++ = tmp >> 16; | |
380 | *e++ = tmp >> 8; | |
381 | *e++ = tmp & 0xff; | |
382 | } | |
3861aa5c | 383 | |
232c150a | 384 | if (RequestedIP) { |
3090b7e3 | 385 | int tmp = ntohl(RequestedIP); |
3861aa5c | 386 | |
232c150a WD |
387 | *e++ = 50; /* Requested IP */ |
388 | *e++ = 4; | |
389 | *e++ = tmp >> 24; | |
390 | *e++ = tmp >> 16; | |
391 | *e++ = tmp >> 8; | |
392 | *e++ = tmp & 0xff; | |
393 | } | |
1fe80d79 | 394 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
3090b7e3 JH |
395 | hostname = getenv("hostname"); |
396 | if (hostname) { | |
397 | int hostnamelen = strlen(hostname); | |
232c150a WD |
398 | |
399 | *e++ = 12; /* Hostname */ | |
400 | *e++ = hostnamelen; | |
3090b7e3 | 401 | memcpy(e, hostname, hostnamelen); |
232c150a WD |
402 | e += hostnamelen; |
403 | } | |
fe389a82 SR |
404 | #endif |
405 | ||
d2b5d5c4 JH |
406 | #if defined(CONFIG_BOOTP_PXE) |
407 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
408 | *e++ = 93; /* Client System Architecture */ | |
409 | *e++ = 2; | |
410 | *e++ = (clientarch >> 8) & 0xff; | |
411 | *e++ = clientarch & 0xff; | |
412 | ||
413 | *e++ = 94; /* Client Network Interface Identifier */ | |
414 | *e++ = 3; | |
415 | *e++ = 1; /* type field for UNDI */ | |
416 | *e++ = 0; /* major revision */ | |
417 | *e++ = 0; /* minor revision */ | |
418 | ||
419 | uuid = getenv("pxeuuid"); | |
420 | ||
421 | if (uuid) { | |
422 | if (uuid_str_valid(uuid)) { | |
423 | *e++ = 97; /* Client Machine Identifier */ | |
424 | *e++ = 17; | |
425 | *e++ = 0; /* type 0 - UUID */ | |
426 | ||
427 | uuid_str_to_bin(uuid, e); | |
428 | e += 16; | |
429 | } else { | |
430 | printf("Invalid pxeuuid: %s\n", uuid); | |
431 | } | |
432 | } | |
433 | ||
434 | *e++ = 60; /* Vendor Class Identifier */ | |
435 | vci_strlen = strlen(CONFIG_BOOTP_VCI_STRING); | |
436 | *e++ = vci_strlen; | |
437 | memcpy(e, CONFIG_BOOTP_VCI_STRING, vci_strlen); | |
438 | e += vci_strlen; | |
439 | #endif | |
440 | ||
1fe80d79 | 441 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 JH |
442 | x = dhcp_vendorex_prep(e); |
443 | if (x) | |
232c150a | 444 | return x - start; |
3861aa5c WD |
445 | #endif |
446 | ||
232c150a WD |
447 | *e++ = 55; /* Parameter Request List */ |
448 | cnt = e++; /* Pointer to count of requested items */ | |
449 | *cnt = 0; | |
1fe80d79 | 450 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
451 | *e++ = 1; /* Subnet Mask */ |
452 | *cnt += 1; | |
3861aa5c | 453 | #endif |
1fe80d79 | 454 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
455 | *e++ = 2; |
456 | *cnt += 1; | |
457 | #endif | |
1fe80d79 | 458 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
459 | *e++ = 3; /* Router Option */ |
460 | *cnt += 1; | |
3861aa5c | 461 | #endif |
1fe80d79 | 462 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
463 | *e++ = 6; /* DNS Server(s) */ |
464 | *cnt += 1; | |
3861aa5c | 465 | #endif |
1fe80d79 | 466 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
467 | *e++ = 12; /* Hostname */ |
468 | *cnt += 1; | |
3861aa5c | 469 | #endif |
1fe80d79 | 470 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
471 | *e++ = 13; /* Boot File Size */ |
472 | *cnt += 1; | |
3861aa5c | 473 | #endif |
1fe80d79 | 474 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
475 | *e++ = 17; /* Boot path */ |
476 | *cnt += 1; | |
3861aa5c | 477 | #endif |
1fe80d79 | 478 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
479 | *e++ = 40; /* NIS Domain name request */ |
480 | *cnt += 1; | |
ea287deb | 481 | #endif |
1fe80d79 | 482 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
483 | *e++ = 42; |
484 | *cnt += 1; | |
3861aa5c | 485 | #endif |
258ccd68 JL |
486 | /* no options, so back up to avoid sending an empty request list */ |
487 | if (*cnt == 0) | |
488 | e -= 2; | |
489 | ||
232c150a | 490 | *e++ = 255; /* End of the list */ |
3861aa5c | 491 | |
232c150a | 492 | /* Pad to minimal length */ |
3861aa5c | 493 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 494 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 495 | *e++ = 0; |
3861aa5c WD |
496 | #endif |
497 | ||
232c150a | 498 | return e - start; |
3861aa5c WD |
499 | } |
500 | ||
610f2e9c | 501 | #else |
3861aa5c | 502 | /* |
3090b7e3 | 503 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 504 | */ |
3090b7e3 | 505 | static int BootpExtended(u8 *e) |
3861aa5c | 506 | { |
232c150a | 507 | u8 *start = e; |
3861aa5c | 508 | |
232c150a WD |
509 | *e++ = 99; /* RFC1048 Magic Cookie */ |
510 | *e++ = 130; | |
511 | *e++ = 83; | |
512 | *e++ = 99; | |
3861aa5c | 513 | |
643d1ab2 | 514 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
515 | *e++ = 53; /* DHCP Message Type */ |
516 | *e++ = 1; | |
517 | *e++ = DHCP_DISCOVER; | |
518 | ||
519 | *e++ = 57; /* Maximum DHCP Message Size */ | |
520 | *e++ = 2; | |
f8315731 JH |
521 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
522 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
610f2e9c | 523 | #endif |
3861aa5c | 524 | |
1fe80d79 | 525 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
526 | *e++ = 1; /* Subnet mask request */ |
527 | *e++ = 4; | |
528 | e += 4; | |
3861aa5c WD |
529 | #endif |
530 | ||
1fe80d79 | 531 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
532 | *e++ = 3; /* Default gateway request */ |
533 | *e++ = 4; | |
534 | e += 4; | |
3861aa5c WD |
535 | #endif |
536 | ||
1fe80d79 | 537 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
538 | *e++ = 6; /* Domain Name Server */ |
539 | *e++ = 4; | |
540 | e += 4; | |
3861aa5c WD |
541 | #endif |
542 | ||
1fe80d79 | 543 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
544 | *e++ = 12; /* Host name request */ |
545 | *e++ = 32; | |
546 | e += 32; | |
3861aa5c WD |
547 | #endif |
548 | ||
1fe80d79 | 549 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
550 | *e++ = 13; /* Boot file size */ |
551 | *e++ = 2; | |
552 | e += 2; | |
3861aa5c WD |
553 | #endif |
554 | ||
1fe80d79 | 555 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
556 | *e++ = 17; /* Boot path */ |
557 | *e++ = 32; | |
558 | e += 32; | |
3861aa5c WD |
559 | #endif |
560 | ||
1fe80d79 | 561 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
562 | *e++ = 40; /* NIS Domain name request */ |
563 | *e++ = 32; | |
564 | e += 32; | |
3861aa5c | 565 | #endif |
09e3a67d LP |
566 | #if defined(CONFIG_BOOTP_NTPSERVER) |
567 | *e++ = 42; | |
568 | *e++ = 4; | |
569 | e += 4; | |
570 | #endif | |
3861aa5c | 571 | |
232c150a | 572 | *e++ = 255; /* End of the list */ |
3861aa5c | 573 | |
232c150a | 574 | return e - start; |
3861aa5c | 575 | } |
610f2e9c | 576 | #endif |
3861aa5c WD |
577 | |
578 | void | |
3090b7e3 | 579 | BootpRequest(void) |
3861aa5c | 580 | { |
db288a96 | 581 | uchar *pkt, *iphdr; |
3090b7e3 | 582 | struct Bootp_t *bp; |
ae446f56 JH |
583 | int extlen, pktlen, iplen; |
584 | int eth_hdr_size; | |
eafc8db0 JH |
585 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
586 | ulong i, rand_ms; | |
587 | #endif | |
3861aa5c | 588 | |
573f14fe | 589 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
643d1ab2 | 590 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
591 | dhcp_state = INIT; |
592 | #endif | |
593 | ||
594 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
eafc8db0 JH |
595 | if (BootpTry == 0) |
596 | srand_mac(); | |
3861aa5c | 597 | |
eafc8db0 JH |
598 | if (BootpTry <= 2) /* Start with max 1024 * 1ms */ |
599 | rand_ms = rand() >> (22 - BootpTry); | |
600 | else /* After 3rd BOOTP request max 8192 * 1ms */ | |
601 | rand_ms = rand() >> 19; | |
3861aa5c | 602 | |
eafc8db0 JH |
603 | printf("Random delay: %ld ms...\n", rand_ms); |
604 | for (i = 0; i < rand_ms; i++) | |
3861aa5c | 605 | udelay(1000); /*Wait 1ms*/ |
3090b7e3 | 606 | |
3861aa5c WD |
607 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
608 | ||
609 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
610 | pkt = NetTxPacket; | |
3090b7e3 | 611 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 612 | |
ae446f56 JH |
613 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
614 | pkt += eth_hdr_size; | |
3861aa5c WD |
615 | |
616 | /* | |
3090b7e3 JH |
617 | * Next line results in incorrect packet size being transmitted, |
618 | * resulting in errors in some DHCP servers, reporting missing bytes. | |
619 | * Size must be set in packet header after extension length has been | |
620 | * determined. | |
3861aa5c WD |
621 | * C. Hallinan, DS4.COM, Inc. |
622 | */ | |
4b11c916 | 623 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
3090b7e3 | 624 | sizeof (struct Bootp_t)); */ |
4b11c916 | 625 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
594c26f8 | 626 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 627 | |
3090b7e3 | 628 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
629 | bp->bp_op = OP_BOOTREQUEST; |
630 | bp->bp_htype = HWT_ETHER; | |
631 | bp->bp_hlen = HWL_ETHER; | |
632 | bp->bp_hops = 0; | |
49f3bdbb | 633 | bp->bp_secs = htons(get_timer(0) / 1000); |
3861aa5c WD |
634 | NetWriteIP(&bp->bp_ciaddr, 0); |
635 | NetWriteIP(&bp->bp_yiaddr, 0); | |
636 | NetWriteIP(&bp->bp_siaddr, 0); | |
637 | NetWriteIP(&bp->bp_giaddr, 0); | |
3090b7e3 JH |
638 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
639 | copy_filename(bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
3861aa5c WD |
640 | |
641 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 642 | #if defined(CONFIG_CMD_DHCP) |
ae446f56 | 643 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 644 | #else |
ae446f56 | 645 | extlen = BootpExtended((u8 *)bp->bp_vend); |
610f2e9c | 646 | #endif |
3861aa5c WD |
647 | |
648 | /* | |
649 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 650 | * plus the current time in ms. |
3861aa5c WD |
651 | */ |
652 | BootpID = ((ulong)NetOurEther[2] << 24) | |
653 | | ((ulong)NetOurEther[3] << 16) | |
654 | | ((ulong)NetOurEther[4] << 8) | |
655 | | (ulong)NetOurEther[5]; | |
656 | BootpID += get_timer(0); | |
232c150a | 657 | BootpID = htonl(BootpID); |
3861aa5c WD |
658 | NetCopyLong(&bp->bp_id, &BootpID); |
659 | ||
660 | /* | |
661 | * Calculate proper packet lengths taking into account the | |
662 | * variable size of the options field | |
663 | */ | |
ae446f56 JH |
664 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
665 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 666 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
49f3bdbb | 667 | NetSetTimeout(SELECT_TIMEOUT, BootpTimeout); |
3861aa5c | 668 | |
643d1ab2 | 669 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 670 | dhcp_state = SELECTING; |
ece223b5 | 671 | net_set_udp_handler(DhcpHandler); |
3861aa5c | 672 | #else |
ece223b5 | 673 | net_set_udp_handler(BootpHandler); |
610f2e9c | 674 | #endif |
3861aa5c WD |
675 | NetSendPacket(NetTxPacket, pktlen); |
676 | } | |
677 | ||
643d1ab2 | 678 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 | 679 | static void DhcpOptionsProcess(uchar *popt, struct Bootp_t *bp) |
3861aa5c | 680 | { |
3e38691e | 681 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 682 | int oplen, size; |
d8d8724b WD |
683 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
684 | int *to_ptr; | |
685 | #endif | |
3861aa5c | 686 | |
232c150a | 687 | while (popt < end && *popt != 0xff) { |
3861aa5c | 688 | oplen = *(popt + 1); |
232c150a WD |
689 | switch (*popt) { |
690 | case 1: | |
3090b7e3 | 691 | NetCopyIP(&NetOurSubnetMask, (popt + 2)); |
232c150a | 692 | break; |
1fe80d79 | 693 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 694 | case 2: /* Time offset */ |
d8d8724b | 695 | to_ptr = &NetTimeOffset; |
3090b7e3 JH |
696 | NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2)); |
697 | NetTimeOffset = ntohl(NetTimeOffset); | |
ea287deb WD |
698 | break; |
699 | #endif | |
232c150a | 700 | case 3: |
3090b7e3 | 701 | NetCopyIP(&NetOurGatewayIP, (popt + 2)); |
232c150a WD |
702 | break; |
703 | case 6: | |
3090b7e3 | 704 | NetCopyIP(&NetOurDNSIP, (popt + 2)); |
1fe80d79 | 705 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
706 | if (*(popt + 1) > 4) |
707 | NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); | |
fe389a82 | 708 | #endif |
232c150a WD |
709 | break; |
710 | case 12: | |
3090b7e3 JH |
711 | size = truncate_sz("Host Name", |
712 | sizeof(NetOurHostName), oplen); | |
713 | memcpy(&NetOurHostName, popt + 2, size); | |
232c150a WD |
714 | NetOurHostName[size] = 0; |
715 | break; | |
716 | case 15: /* Ignore Domain Name Option */ | |
717 | break; | |
718 | case 17: | |
3090b7e3 JH |
719 | size = truncate_sz("Root Path", |
720 | sizeof(NetOurRootPath), oplen); | |
721 | memcpy(&NetOurRootPath, popt + 2, size); | |
232c150a WD |
722 | NetOurRootPath[size] = 0; |
723 | break; | |
1fe80d79 | 724 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb | 725 | case 42: /* NTP server IP */ |
3090b7e3 | 726 | NetCopyIP(&NetNtpServerIP, (popt + 2)); |
ea287deb WD |
727 | break; |
728 | #endif | |
232c150a | 729 | case 51: |
3090b7e3 | 730 | NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2)); |
232c150a WD |
731 | break; |
732 | case 53: /* Ignore Message Type Option */ | |
733 | break; | |
734 | case 54: | |
3090b7e3 | 735 | NetCopyIP(&NetDHCPServerIP, (popt + 2)); |
232c150a WD |
736 | break; |
737 | case 58: /* Ignore Renewal Time Option */ | |
738 | break; | |
739 | case 59: /* Ignore Rebinding Time Option */ | |
740 | break; | |
3b2e4fd9 WD |
741 | case 66: /* Ignore TFTP server name */ |
742 | break; | |
743 | case 67: /* vendor opt bootfile */ | |
744 | /* | |
745 | * I can't use dhcp_vendorex_proc here because I need | |
746 | * to write into the bootp packet - even then I had to | |
747 | * pass the bootp packet pointer into here as the | |
748 | * second arg | |
749 | */ | |
3090b7e3 | 750 | size = truncate_sz("Opt Boot File", |
3b2e4fd9 WD |
751 | sizeof(bp->bp_file), |
752 | oplen); | |
753 | if (bp->bp_file[0] == '\0' && size > 0) { | |
754 | /* | |
755 | * only use vendor boot file if we didn't | |
756 | * receive a boot file in the main non-vendor | |
757 | * part of the packet - god only knows why | |
758 | * some vendors chose not to use this perfectly | |
759 | * good spot to store the boot file (join on | |
760 | * Tru64 Unix) it seems mind bogglingly crazy | |
761 | * to me | |
762 | */ | |
763 | printf("*** WARNING: using vendor " | |
764 | "optional boot file\n"); | |
765 | memcpy(bp->bp_file, popt + 2, size); | |
766 | bp->bp_file[size] = '\0'; | |
767 | } | |
768 | break; | |
232c150a | 769 | default: |
1fe80d79 | 770 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 | 771 | if (dhcp_vendorex_proc(popt)) |
8bde7f77 | 772 | break; |
3861aa5c | 773 | #endif |
3090b7e3 JH |
774 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
775 | " %d\n", *popt); | |
232c150a | 776 | break; |
3861aa5c WD |
777 | } |
778 | popt += oplen + 2; /* Process next option */ | |
779 | } | |
780 | } | |
781 | ||
782 | static int DhcpMessageType(unsigned char *popt) | |
783 | { | |
3090b7e3 | 784 | if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
3861aa5c WD |
785 | return -1; |
786 | ||
787 | popt += 4; | |
3090b7e3 JH |
788 | while (*popt != 0xff) { |
789 | if (*popt == 53) /* DHCP Message Type */ | |
3861aa5c WD |
790 | return *(popt + 2); |
791 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
792 | } | |
793 | return -1; | |
794 | } | |
795 | ||
3090b7e3 | 796 | static void DhcpSendRequestPkt(struct Bootp_t *bp_offer) |
3861aa5c | 797 | { |
db288a96 | 798 | uchar *pkt, *iphdr; |
3090b7e3 | 799 | struct Bootp_t *bp; |
3861aa5c | 800 | int pktlen, iplen, extlen; |
ae446f56 | 801 | int eth_hdr_size; |
47cd00fa | 802 | IPaddr_t OfferedIP; |
3861aa5c | 803 | |
0ebf04c6 | 804 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c | 805 | pkt = NetTxPacket; |
3090b7e3 | 806 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 807 | |
ae446f56 JH |
808 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
809 | pkt += eth_hdr_size; | |
3861aa5c | 810 | |
3090b7e3 | 811 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
594c26f8 | 812 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 813 | |
3090b7e3 | 814 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
815 | bp->bp_op = OP_BOOTREQUEST; |
816 | bp->bp_htype = HWT_ETHER; | |
817 | bp->bp_hlen = HWL_ETHER; | |
818 | bp->bp_hops = 0; | |
49f3bdbb | 819 | bp->bp_secs = htons(get_timer(0) / 1000); |
3090b7e3 JH |
820 | /* Do not set the client IP, your IP, or server IP yet, since it |
821 | * hasn't been ACK'ed by the server yet */ | |
e5c794e4 | 822 | |
c6686703 | 823 | /* |
d82718fe WD |
824 | * RFC3046 requires Relay Agents to discard packets with |
825 | * nonzero and offered giaddr | |
826 | */ | |
827 | NetWriteIP(&bp->bp_giaddr, 0); | |
828 | ||
3090b7e3 | 829 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
3861aa5c WD |
830 | |
831 | /* | |
832 | * ID is the id of the OFFER packet | |
833 | */ | |
834 | ||
835 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
836 | ||
837 | /* | |
838 | * Copy options from OFFER packet if present | |
839 | */ | |
e5c794e4 JF |
840 | |
841 | /* Copy offered IP into the parameters request list */ | |
842 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
3090b7e3 JH |
843 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, |
844 | NetDHCPServerIP, OfferedIP); | |
3861aa5c | 845 | |
ae446f56 JH |
846 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
847 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 848 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
3861aa5c | 849 | |
d9a2f416 AV |
850 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
851 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
852 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
f9623229 | 853 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
3861aa5c WD |
854 | NetSendPacket(NetTxPacket, pktlen); |
855 | } | |
856 | ||
857 | /* | |
858 | * Handle DHCP received packets. | |
859 | */ | |
860 | static void | |
03eb129f LC |
861 | DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
862 | unsigned len) | |
3861aa5c | 863 | { |
3090b7e3 | 864 | struct Bootp_t *bp = (struct Bootp_t *)pkt; |
3861aa5c | 865 | |
0ebf04c6 | 866 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
867 | src, dest, len, dhcp_state); |
868 | ||
3090b7e3 JH |
869 | /* Filter out pkts we don't want */ |
870 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
871 | return; |
872 | ||
3090b7e3 JH |
873 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state:" |
874 | " %d\n", src, dest, len, dhcp_state); | |
3861aa5c WD |
875 | |
876 | switch (dhcp_state) { | |
877 | case SELECTING: | |
878 | /* | |
879 | * Wait an appropriate time for any potential DHCPOFFER packets | |
3090b7e3 JH |
880 | * to arrive. Then select one, and generate DHCPREQUEST |
881 | * response. If filename is in format we recognize, assume it | |
882 | * is a valid OFFER from a server we want. | |
3861aa5c | 883 | */ |
0ebf04c6 | 884 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 885 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 886 | if (strncmp(bp->bp_file, |
6d0f6bcf | 887 | CONFIG_SYS_BOOTFILE_PREFIX, |
3090b7e3 | 888 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
6d0f6bcf | 889 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c | 890 | |
0ebf04c6 | 891 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 892 | dhcp_state = REQUESTING; |
759a51b4 | 893 | |
3090b7e3 JH |
894 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == |
895 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 896 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 897 | |
49f3bdbb | 898 | NetSetTimeout(TIMEOUT, BootpTimeout); |
3861aa5c | 899 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 900 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 901 | } |
6d0f6bcf | 902 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
903 | |
904 | return; | |
905 | break; | |
906 | case REQUESTING: | |
0ebf04c6 | 907 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 908 | |
3090b7e3 JH |
909 | if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { |
910 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == | |
911 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 912 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3090b7e3 JH |
913 | /* Store net params from reply */ |
914 | BootpCopyNetParams(bp); | |
3861aa5c | 915 | dhcp_state = BOUND; |
3090b7e3 JH |
916 | printf("DHCP client bound to address %pI4\n", |
917 | &NetOurIP); | |
573f14fe | 918 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
3090b7e3 | 919 | "bootp_stop"); |
3861aa5c | 920 | |
e4a3d57d | 921 | net_auto_load(); |
3861aa5c WD |
922 | return; |
923 | } | |
924 | break; | |
51dfe138 RB |
925 | case BOUND: |
926 | /* DHCP client bound to address */ | |
927 | break; | |
3861aa5c | 928 | default: |
3090b7e3 | 929 | puts("DHCP: INVALID STATE\n"); |
3861aa5c WD |
930 | break; |
931 | } | |
932 | ||
933 | } | |
934 | ||
935 | void DhcpRequest(void) | |
936 | { | |
937 | BootpRequest(); | |
938 | } | |
992742a5 | 939 | #endif /* CONFIG_CMD_DHCP */ |