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Commit | Line | Data |
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3861aa5c WD |
1 | /* |
2 | * Based on LiMon - BOOTP. | |
3 | * | |
4 | * Copyright 1994, 1995, 2000 Neil Russell. | |
5 | * (See License) | |
6 | * Copyright 2000 Roland Borde | |
7 | * Copyright 2000 Paolo Scaffardi | |
232c150a | 8 | * Copyright 2000-2004 Wolfgang Denk, wd@denx.de |
3861aa5c WD |
9 | */ |
10 | ||
3861aa5c WD |
11 | #include <common.h> |
12 | #include <command.h> | |
13 | #include <net.h> | |
14 | #include "bootp.h" | |
15 | #include "tftp.h" | |
232c150a | 16 | #include "nfs.h" |
3861aa5c WD |
17 | #ifdef CONFIG_STATUS_LED |
18 | #include <status_led.h> | |
19 | #endif | |
db7720ba KP |
20 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
21 | #include "net_rand.h" | |
22 | #endif | |
3861aa5c | 23 | |
3090b7e3 | 24 | #define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ |
3861aa5c | 25 | |
f59be6e8 SW |
26 | /* |
27 | * The timeout for the initial BOOTP/DHCP request used to be described by a | |
28 | * counter of fixed-length timeout periods. TIMEOUT_COUNT represents | |
29 | * that counter | |
30 | * | |
31 | * Now that the timeout periods are variable (exponential backoff and retry) | |
32 | * we convert the timeout count to the absolute time it would have take to | |
33 | * execute that many retries, and keep sending retry packets until that time | |
34 | * is reached. | |
35 | */ | |
232c150a | 36 | #ifndef CONFIG_NET_RETRY_COUNT |
3090b7e3 | 37 | # define TIMEOUT_COUNT 5 /* # of timeouts before giving up */ |
3861aa5c | 38 | #else |
232c150a | 39 | # define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT) |
3861aa5c | 40 | #endif |
f59be6e8 | 41 | #define TIMEOUT_MS ((3 + (TIMEOUT_COUNT * 5)) * 1000) |
3861aa5c | 42 | |
3090b7e3 JH |
43 | #define PORT_BOOTPS 67 /* BOOTP server UDP port */ |
44 | #define PORT_BOOTPC 68 /* BOOTP client UDP port */ | |
3861aa5c | 45 | |
3090b7e3 | 46 | #ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ |
232c150a | 47 | #define CONFIG_DHCP_MIN_EXT_LEN 64 |
3861aa5c WD |
48 | #endif |
49 | ||
50 | ulong BootpID; | |
51 | int BootpTry; | |
f59be6e8 SW |
52 | ulong bootp_start; |
53 | ulong bootp_timeout; | |
3861aa5c | 54 | |
643d1ab2 | 55 | #if defined(CONFIG_CMD_DHCP) |
06370590 KP |
56 | static dhcp_state_t dhcp_state = INIT; |
57 | static unsigned long dhcp_leasetime; | |
58 | static IPaddr_t NetDHCPServerIP; | |
03eb129f LC |
59 | static void DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
60 | unsigned len); | |
3861aa5c WD |
61 | |
62 | /* For Debug */ | |
3e38691e WD |
63 | #if 0 |
64 | static char *dhcpmsg2str(int type) | |
3861aa5c WD |
65 | { |
66 | switch (type) { | |
232c150a WD |
67 | case 1: return "DHCPDISCOVER"; break; |
68 | case 2: return "DHCPOFFER"; break; | |
69 | case 3: return "DHCPREQUEST"; break; | |
70 | case 4: return "DHCPDECLINE"; break; | |
71 | case 5: return "DHCPACK"; break; | |
72 | case 6: return "DHCPNACK"; break; | |
73 | case 7: return "DHCPRELEASE"; break; | |
3861aa5c WD |
74 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
75 | } | |
76 | } | |
3e38691e | 77 | #endif |
610f2e9c | 78 | #endif |
3861aa5c WD |
79 | |
80 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) | |
81 | { | |
3090b7e3 | 82 | struct Bootp_t *bp = (struct Bootp_t *) pkt; |
3861aa5c WD |
83 | int retval = 0; |
84 | ||
85 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
86 | retval = -1; | |
f8315731 | 87 | else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE) |
3861aa5c WD |
88 | retval = -2; |
89 | else if (bp->bp_op != OP_BOOTREQUEST && | |
3090b7e3 JH |
90 | bp->bp_op != OP_BOOTREPLY && |
91 | bp->bp_op != DHCP_OFFER && | |
92 | bp->bp_op != DHCP_ACK && | |
93 | bp->bp_op != DHCP_NAK) | |
3861aa5c | 94 | retval = -3; |
3861aa5c WD |
95 | else if (bp->bp_htype != HWT_ETHER) |
96 | retval = -4; | |
97 | else if (bp->bp_hlen != HWL_ETHER) | |
98 | retval = -5; | |
3090b7e3 | 99 | else if (NetReadLong((ulong *)&bp->bp_id) != BootpID) |
3861aa5c | 100 | retval = -6; |
3861aa5c | 101 | |
0ebf04c6 | 102 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
103 | |
104 | return retval; | |
105 | } | |
106 | ||
107 | /* | |
108 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
109 | */ | |
3090b7e3 | 110 | static void BootpCopyNetParams(struct Bootp_t *bp) |
3861aa5c | 111 | { |
5d110f0a | 112 | #if !defined(CONFIG_BOOTP_SERVERIP) |
1752f0fd JH |
113 | IPaddr_t tmp_ip; |
114 | ||
3d3befa7 WD |
115 | NetCopyIP(&tmp_ip, &bp->bp_siaddr); |
116 | if (tmp_ip != 0) | |
117 | NetCopyIP(&NetServerIP, &bp->bp_siaddr); | |
cb487f56 | 118 | memcpy(NetServerEther, ((struct ethernet_hdr *)NetRxPacket)->et_src, 6); |
5d110f0a | 119 | #endif |
1752f0fd | 120 | NetCopyIP(&NetOurIP, &bp->bp_yiaddr); |
3d3befa7 | 121 | if (strlen(bp->bp_file) > 0) |
3090b7e3 | 122 | copy_filename(BootFile, bp->bp_file, sizeof(BootFile)); |
3861aa5c | 123 | |
0ebf04c6 | 124 | debug("Bootfile: %s\n", BootFile); |
3861aa5c WD |
125 | |
126 | /* Propagate to environment: | |
8bde7f77 | 127 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
128 | * not contain a new value |
129 | */ | |
3090b7e3 JH |
130 | if (*BootFile) |
131 | setenv("bootfile", BootFile); | |
3861aa5c WD |
132 | } |
133 | ||
3090b7e3 | 134 | static int truncate_sz(const char *name, int maxlen, int curlen) |
3861aa5c WD |
135 | { |
136 | if (curlen >= maxlen) { | |
3090b7e3 JH |
137 | printf("*** WARNING: %s is too long (%d - max: %d)" |
138 | " - truncated\n", name, curlen, maxlen); | |
3861aa5c WD |
139 | curlen = maxlen - 1; |
140 | } | |
3090b7e3 | 141 | return curlen; |
3861aa5c WD |
142 | } |
143 | ||
643d1ab2 | 144 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 145 | |
3090b7e3 | 146 | static void BootpVendorFieldProcess(u8 *ext) |
3861aa5c | 147 | { |
232c150a | 148 | int size = *(ext + 1); |
3861aa5c | 149 | |
0ebf04c6 | 150 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
3090b7e3 | 151 | *(ext + 1)); |
3861aa5c | 152 | |
232c150a | 153 | NetBootFileSize = 0; |
3861aa5c | 154 | |
232c150a WD |
155 | switch (*ext) { |
156 | /* Fixed length fields */ | |
3090b7e3 | 157 | case 1: /* Subnet mask */ |
3861aa5c | 158 | if (NetOurSubnetMask == 0) |
3090b7e3 | 159 | NetCopyIP(&NetOurSubnetMask, (IPaddr_t *) (ext + 2)); |
3861aa5c | 160 | break; |
3090b7e3 | 161 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 162 | break; |
232c150a | 163 | /* Variable length fields */ |
3090b7e3 JH |
164 | case 3: /* Gateways list */ |
165 | if (NetOurGatewayIP == 0) | |
166 | NetCopyIP(&NetOurGatewayIP, (IPaddr_t *) (ext + 2)); | |
3861aa5c | 167 | break; |
3090b7e3 | 168 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 169 | break; |
3090b7e3 | 170 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
171 | break; |
172 | case 6: | |
3090b7e3 JH |
173 | if (NetOurDNSIP == 0) |
174 | NetCopyIP(&NetOurDNSIP, (IPaddr_t *) (ext + 2)); | |
1fe80d79 | 175 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
176 | if ((NetOurDNS2IP == 0) && (size > 4)) |
177 | NetCopyIP(&NetOurDNS2IP, (IPaddr_t *) (ext + 2 + 4)); | |
fe389a82 | 178 | #endif |
3861aa5c | 179 | break; |
3090b7e3 | 180 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 181 | break; |
3090b7e3 | 182 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 183 | break; |
3090b7e3 | 184 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 185 | break; |
3090b7e3 | 186 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 187 | break; |
3090b7e3 | 188 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 189 | break; |
3090b7e3 | 190 | case 12: /* Host name */ |
3861aa5c | 191 | if (NetOurHostName[0] == 0) { |
3090b7e3 JH |
192 | size = truncate_sz("Host Name", |
193 | sizeof(NetOurHostName), size); | |
194 | memcpy(&NetOurHostName, ext + 2, size); | |
232c150a | 195 | NetOurHostName[size] = 0; |
3861aa5c WD |
196 | } |
197 | break; | |
3090b7e3 | 198 | case 13: /* Boot file size */ |
3861aa5c | 199 | if (size == 2) |
3090b7e3 | 200 | NetBootFileSize = ntohs(*(ushort *) (ext + 2)); |
3861aa5c | 201 | else if (size == 4) |
3090b7e3 | 202 | NetBootFileSize = ntohl(*(ulong *) (ext + 2)); |
3861aa5c | 203 | break; |
3090b7e3 | 204 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 205 | break; |
3090b7e3 | 206 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 207 | break; |
3090b7e3 | 208 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 209 | break; |
3090b7e3 | 210 | case 17: /* Root path */ |
3861aa5c | 211 | if (NetOurRootPath[0] == 0) { |
3090b7e3 JH |
212 | size = truncate_sz("Root Path", |
213 | sizeof(NetOurRootPath), size); | |
214 | memcpy(&NetOurRootPath, ext + 2, size); | |
232c150a | 215 | NetOurRootPath[size] = 0; |
3861aa5c WD |
216 | } |
217 | break; | |
3090b7e3 | 218 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 219 | /* |
8bde7f77 WD |
220 | * This can be used to send the information of the |
221 | * vendor area in another file that the client can | |
222 | * access via TFTP. | |
3861aa5c WD |
223 | */ |
224 | break; | |
232c150a | 225 | /* IP host layer fields */ |
3090b7e3 | 226 | case 40: /* NIS Domain name */ |
3861aa5c | 227 | if (NetOurNISDomain[0] == 0) { |
3090b7e3 JH |
228 | size = truncate_sz("NIS Domain Name", |
229 | sizeof(NetOurNISDomain), size); | |
230 | memcpy(&NetOurNISDomain, ext + 2, size); | |
232c150a | 231 | NetOurNISDomain[size] = 0; |
3861aa5c WD |
232 | } |
233 | break; | |
09e3a67d LP |
234 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
235 | case 42: /* NTP server IP */ | |
236 | NetCopyIP(&NetNtpServerIP, (IPaddr_t *) (ext + 2)); | |
237 | break; | |
238 | #endif | |
232c150a | 239 | /* Application layer fields */ |
3090b7e3 | 240 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 241 | /* |
8bde7f77 WD |
242 | * Binary information to exchange specific |
243 | * product information. | |
3861aa5c WD |
244 | */ |
245 | break; | |
232c150a WD |
246 | /* Reserved (custom) fields (128..254) */ |
247 | } | |
3861aa5c WD |
248 | } |
249 | ||
3090b7e3 | 250 | static void BootpVendorProcess(u8 *ext, int size) |
3861aa5c | 251 | { |
232c150a | 252 | u8 *end = ext + size; |
3861aa5c | 253 | |
0ebf04c6 | 254 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 255 | |
232c150a WD |
256 | while ((ext < end) && (*ext != 0xff)) { |
257 | if (*ext == 0) { | |
258 | ext++; | |
259 | } else { | |
260 | u8 *opt = ext; | |
261 | ||
262 | ext += ext[1] + 2; | |
263 | if (ext <= end) | |
3090b7e3 | 264 | BootpVendorFieldProcess(opt); |
232c150a | 265 | } |
3861aa5c | 266 | } |
3861aa5c | 267 | |
3090b7e3 | 268 | debug("[BOOTP] Received fields:\n"); |
b6446b67 | 269 | if (NetOurSubnetMask) |
0ebf04c6 | 270 | debug("NetOurSubnetMask : %pI4\n", &NetOurSubnetMask); |
232c150a | 271 | |
b6446b67 | 272 | if (NetOurGatewayIP) |
0ebf04c6 | 273 | debug("NetOurGatewayIP : %pI4", &NetOurGatewayIP); |
232c150a | 274 | |
0ebf04c6 RG |
275 | if (NetBootFileSize) |
276 | debug("NetBootFileSize : %d\n", NetBootFileSize); | |
3861aa5c | 277 | |
0ebf04c6 RG |
278 | if (NetOurHostName[0]) |
279 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 280 | |
0ebf04c6 RG |
281 | if (NetOurRootPath[0]) |
282 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 283 | |
0ebf04c6 RG |
284 | if (NetOurNISDomain[0]) |
285 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 286 | |
0ebf04c6 RG |
287 | if (NetBootFileSize) |
288 | debug("NetBootFileSize: %d\n", NetBootFileSize); | |
09e3a67d LP |
289 | |
290 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) | |
291 | if (NetNtpServerIP) | |
292 | debug("NetNtpServerIP : %pI4\n", &NetNtpServerIP); | |
293 | #endif | |
232c150a | 294 | } |
09349866 | 295 | |
3861aa5c WD |
296 | /* |
297 | * Handle a BOOTP received packet. | |
298 | */ | |
299 | static void | |
03eb129f LC |
300 | BootpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
301 | unsigned len) | |
3861aa5c | 302 | { |
3090b7e3 | 303 | struct Bootp_t *bp; |
3861aa5c | 304 | |
0ebf04c6 | 305 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3090b7e3 | 306 | src, dest, len, sizeof(struct Bootp_t)); |
3861aa5c | 307 | |
3090b7e3 | 308 | bp = (struct Bootp_t *)pkt; |
3861aa5c | 309 | |
3090b7e3 JH |
310 | /* Filter out pkts we don't want */ |
311 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
312 | return; |
313 | ||
314 | /* | |
232c150a | 315 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
316 | */ |
317 | #ifdef CONFIG_STATUS_LED | |
3090b7e3 | 318 | status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); |
3861aa5c WD |
319 | #endif |
320 | ||
321 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
322 | ||
323 | /* Retrieve extended information (we must parse the vendor area) */ | |
3090b7e3 | 324 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
77ddac94 | 325 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
326 | |
327 | NetSetTimeout(0, (thand_f *)0); | |
573f14fe | 328 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
3861aa5c | 329 | |
0ebf04c6 | 330 | debug("Got good BOOTP\n"); |
3861aa5c | 331 | |
e4a3d57d | 332 | net_auto_load(); |
3861aa5c | 333 | } |
610f2e9c | 334 | #endif |
3861aa5c WD |
335 | |
336 | /* | |
337 | * Timeout on BOOTP/DHCP request. | |
338 | */ | |
339 | static void | |
340 | BootpTimeout(void) | |
341 | { | |
f59be6e8 SW |
342 | ulong time_taken = get_timer(bootp_start); |
343 | ||
344 | if (time_taken >= TIMEOUT_MS) { | |
2c00e099 | 345 | #ifdef CONFIG_BOOTP_MAY_FAIL |
f59be6e8 | 346 | puts("\nRetry time exceeded\n"); |
b977aa80 | 347 | net_set_state(NETLOOP_FAIL); |
2c00e099 | 348 | #else |
f59be6e8 | 349 | puts("\nRetry time exceeded; starting again\n"); |
3090b7e3 | 350 | NetStartAgain(); |
2c00e099 | 351 | #endif |
3861aa5c | 352 | } else { |
f59be6e8 SW |
353 | bootp_timeout *= 2; |
354 | if (bootp_timeout > 1000) | |
355 | bootp_timeout = 1000; | |
356 | NetSetTimeout(bootp_timeout, BootpTimeout); | |
3090b7e3 | 357 | BootpRequest(); |
3861aa5c WD |
358 | } |
359 | } | |
360 | ||
9ace17c8 IY |
361 | #define put_vci(e, str) \ |
362 | do { \ | |
363 | size_t vci_strlen = strlen(str); \ | |
364 | *e++ = 60; /* Vendor Class Identifier */ \ | |
365 | *e++ = vci_strlen; \ | |
366 | memcpy(e, str, vci_strlen); \ | |
367 | e += vci_strlen; \ | |
368 | } while (0) | |
369 | ||
3861aa5c WD |
370 | /* |
371 | * Initialize BOOTP extension fields in the request. | |
372 | */ | |
643d1ab2 | 373 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 JH |
374 | static int DhcpExtended(u8 *e, int message_type, IPaddr_t ServerID, |
375 | IPaddr_t RequestedIP) | |
3861aa5c | 376 | { |
232c150a WD |
377 | u8 *start = e; |
378 | u8 *cnt; | |
d2b5d5c4 JH |
379 | #if defined(CONFIG_BOOTP_PXE) |
380 | char *uuid; | |
d2b5d5c4 JH |
381 | u16 clientarch; |
382 | #endif | |
232c150a | 383 | |
1fe80d79 | 384 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 385 | u8 *x; |
3861aa5c | 386 | #endif |
1fe80d79 | 387 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 388 | char *hostname; |
fe389a82 | 389 | #endif |
3861aa5c | 390 | |
232c150a WD |
391 | *e++ = 99; /* RFC1048 Magic Cookie */ |
392 | *e++ = 130; | |
393 | *e++ = 83; | |
394 | *e++ = 99; | |
3861aa5c | 395 | |
232c150a WD |
396 | *e++ = 53; /* DHCP Message Type */ |
397 | *e++ = 1; | |
398 | *e++ = message_type; | |
3861aa5c | 399 | |
232c150a WD |
400 | *e++ = 57; /* Maximum DHCP Message Size */ |
401 | *e++ = 2; | |
f8315731 JH |
402 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
403 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
3861aa5c | 404 | |
232c150a | 405 | if (ServerID) { |
3090b7e3 | 406 | int tmp = ntohl(ServerID); |
3861aa5c | 407 | |
232c150a WD |
408 | *e++ = 54; /* ServerID */ |
409 | *e++ = 4; | |
410 | *e++ = tmp >> 24; | |
411 | *e++ = tmp >> 16; | |
412 | *e++ = tmp >> 8; | |
413 | *e++ = tmp & 0xff; | |
414 | } | |
3861aa5c | 415 | |
232c150a | 416 | if (RequestedIP) { |
3090b7e3 | 417 | int tmp = ntohl(RequestedIP); |
3861aa5c | 418 | |
232c150a WD |
419 | *e++ = 50; /* Requested IP */ |
420 | *e++ = 4; | |
421 | *e++ = tmp >> 24; | |
422 | *e++ = tmp >> 16; | |
423 | *e++ = tmp >> 8; | |
424 | *e++ = tmp & 0xff; | |
425 | } | |
1fe80d79 | 426 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
3090b7e3 JH |
427 | hostname = getenv("hostname"); |
428 | if (hostname) { | |
429 | int hostnamelen = strlen(hostname); | |
232c150a WD |
430 | |
431 | *e++ = 12; /* Hostname */ | |
432 | *e++ = hostnamelen; | |
3090b7e3 | 433 | memcpy(e, hostname, hostnamelen); |
232c150a WD |
434 | e += hostnamelen; |
435 | } | |
fe389a82 SR |
436 | #endif |
437 | ||
d2b5d5c4 JH |
438 | #if defined(CONFIG_BOOTP_PXE) |
439 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
440 | *e++ = 93; /* Client System Architecture */ | |
441 | *e++ = 2; | |
442 | *e++ = (clientarch >> 8) & 0xff; | |
443 | *e++ = clientarch & 0xff; | |
444 | ||
445 | *e++ = 94; /* Client Network Interface Identifier */ | |
446 | *e++ = 3; | |
447 | *e++ = 1; /* type field for UNDI */ | |
448 | *e++ = 0; /* major revision */ | |
449 | *e++ = 0; /* minor revision */ | |
450 | ||
451 | uuid = getenv("pxeuuid"); | |
452 | ||
453 | if (uuid) { | |
454 | if (uuid_str_valid(uuid)) { | |
455 | *e++ = 97; /* Client Machine Identifier */ | |
456 | *e++ = 17; | |
457 | *e++ = 0; /* type 0 - UUID */ | |
458 | ||
d718ded0 | 459 | uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD); |
d2b5d5c4 JH |
460 | e += 16; |
461 | } else { | |
462 | printf("Invalid pxeuuid: %s\n", uuid); | |
463 | } | |
464 | } | |
9ace17c8 | 465 | #endif |
d2b5d5c4 | 466 | |
9ace17c8 IY |
467 | #ifdef CONFIG_BOOTP_VCI_STRING |
468 | put_vci(e, CONFIG_BOOTP_VCI_STRING); | |
d2b5d5c4 JH |
469 | #endif |
470 | ||
1fe80d79 | 471 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 JH |
472 | x = dhcp_vendorex_prep(e); |
473 | if (x) | |
232c150a | 474 | return x - start; |
3861aa5c WD |
475 | #endif |
476 | ||
232c150a WD |
477 | *e++ = 55; /* Parameter Request List */ |
478 | cnt = e++; /* Pointer to count of requested items */ | |
479 | *cnt = 0; | |
1fe80d79 | 480 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
481 | *e++ = 1; /* Subnet Mask */ |
482 | *cnt += 1; | |
3861aa5c | 483 | #endif |
1fe80d79 | 484 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
485 | *e++ = 2; |
486 | *cnt += 1; | |
487 | #endif | |
1fe80d79 | 488 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
489 | *e++ = 3; /* Router Option */ |
490 | *cnt += 1; | |
3861aa5c | 491 | #endif |
1fe80d79 | 492 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
493 | *e++ = 6; /* DNS Server(s) */ |
494 | *cnt += 1; | |
3861aa5c | 495 | #endif |
1fe80d79 | 496 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
497 | *e++ = 12; /* Hostname */ |
498 | *cnt += 1; | |
3861aa5c | 499 | #endif |
1fe80d79 | 500 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
501 | *e++ = 13; /* Boot File Size */ |
502 | *cnt += 1; | |
3861aa5c | 503 | #endif |
1fe80d79 | 504 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
505 | *e++ = 17; /* Boot path */ |
506 | *cnt += 1; | |
3861aa5c | 507 | #endif |
1fe80d79 | 508 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
509 | *e++ = 40; /* NIS Domain name request */ |
510 | *cnt += 1; | |
ea287deb | 511 | #endif |
1fe80d79 | 512 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
513 | *e++ = 42; |
514 | *cnt += 1; | |
3861aa5c | 515 | #endif |
258ccd68 JL |
516 | /* no options, so back up to avoid sending an empty request list */ |
517 | if (*cnt == 0) | |
518 | e -= 2; | |
519 | ||
232c150a | 520 | *e++ = 255; /* End of the list */ |
3861aa5c | 521 | |
232c150a | 522 | /* Pad to minimal length */ |
3861aa5c | 523 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 524 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 525 | *e++ = 0; |
3861aa5c WD |
526 | #endif |
527 | ||
232c150a | 528 | return e - start; |
3861aa5c WD |
529 | } |
530 | ||
610f2e9c | 531 | #else |
3861aa5c | 532 | /* |
3090b7e3 | 533 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 534 | */ |
3090b7e3 | 535 | static int BootpExtended(u8 *e) |
3861aa5c | 536 | { |
232c150a | 537 | u8 *start = e; |
3861aa5c | 538 | |
232c150a WD |
539 | *e++ = 99; /* RFC1048 Magic Cookie */ |
540 | *e++ = 130; | |
541 | *e++ = 83; | |
542 | *e++ = 99; | |
3861aa5c | 543 | |
643d1ab2 | 544 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
545 | *e++ = 53; /* DHCP Message Type */ |
546 | *e++ = 1; | |
547 | *e++ = DHCP_DISCOVER; | |
548 | ||
549 | *e++ = 57; /* Maximum DHCP Message Size */ | |
550 | *e++ = 2; | |
f8315731 JH |
551 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
552 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
610f2e9c | 553 | #endif |
3861aa5c | 554 | |
7ac2fe2d IY |
555 | #if defined(CONFIG_BOOTP_VCI_STRING) || \ |
556 | (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING)) | |
557 | #ifdef CONFIG_SPL_BUILD | |
558 | put_vci(e, CONFIG_SPL_NET_VCI_STRING); | |
559 | #else | |
9ace17c8 IY |
560 | put_vci(e, CONFIG_BOOTP_VCI_STRING); |
561 | #endif | |
7ac2fe2d | 562 | #endif |
9ace17c8 | 563 | |
1fe80d79 | 564 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
565 | *e++ = 1; /* Subnet mask request */ |
566 | *e++ = 4; | |
567 | e += 4; | |
3861aa5c WD |
568 | #endif |
569 | ||
1fe80d79 | 570 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
571 | *e++ = 3; /* Default gateway request */ |
572 | *e++ = 4; | |
573 | e += 4; | |
3861aa5c WD |
574 | #endif |
575 | ||
1fe80d79 | 576 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
577 | *e++ = 6; /* Domain Name Server */ |
578 | *e++ = 4; | |
579 | e += 4; | |
3861aa5c WD |
580 | #endif |
581 | ||
1fe80d79 | 582 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
583 | *e++ = 12; /* Host name request */ |
584 | *e++ = 32; | |
585 | e += 32; | |
3861aa5c WD |
586 | #endif |
587 | ||
1fe80d79 | 588 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
589 | *e++ = 13; /* Boot file size */ |
590 | *e++ = 2; | |
591 | e += 2; | |
3861aa5c WD |
592 | #endif |
593 | ||
1fe80d79 | 594 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
595 | *e++ = 17; /* Boot path */ |
596 | *e++ = 32; | |
597 | e += 32; | |
3861aa5c WD |
598 | #endif |
599 | ||
1fe80d79 | 600 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
601 | *e++ = 40; /* NIS Domain name request */ |
602 | *e++ = 32; | |
603 | e += 32; | |
3861aa5c | 604 | #endif |
09e3a67d LP |
605 | #if defined(CONFIG_BOOTP_NTPSERVER) |
606 | *e++ = 42; | |
607 | *e++ = 4; | |
608 | e += 4; | |
609 | #endif | |
3861aa5c | 610 | |
232c150a | 611 | *e++ = 255; /* End of the list */ |
3861aa5c | 612 | |
232c150a | 613 | return e - start; |
3861aa5c | 614 | } |
610f2e9c | 615 | #endif |
3861aa5c | 616 | |
f59be6e8 SW |
617 | void BootpReset(void) |
618 | { | |
619 | BootpTry = 0; | |
620 | bootp_start = get_timer(0); | |
621 | bootp_timeout = 10; | |
622 | } | |
623 | ||
3861aa5c | 624 | void |
3090b7e3 | 625 | BootpRequest(void) |
3861aa5c | 626 | { |
db288a96 | 627 | uchar *pkt, *iphdr; |
3090b7e3 | 628 | struct Bootp_t *bp; |
ae446f56 JH |
629 | int extlen, pktlen, iplen; |
630 | int eth_hdr_size; | |
eafc8db0 | 631 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
8e8d73b4 | 632 | ulong rand_ms; |
eafc8db0 | 633 | #endif |
3861aa5c | 634 | |
573f14fe | 635 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
643d1ab2 | 636 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
637 | dhcp_state = INIT; |
638 | #endif | |
639 | ||
640 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
eafc8db0 JH |
641 | if (BootpTry == 0) |
642 | srand_mac(); | |
3861aa5c | 643 | |
eafc8db0 JH |
644 | if (BootpTry <= 2) /* Start with max 1024 * 1ms */ |
645 | rand_ms = rand() >> (22 - BootpTry); | |
646 | else /* After 3rd BOOTP request max 8192 * 1ms */ | |
647 | rand_ms = rand() >> 19; | |
3861aa5c | 648 | |
eafc8db0 | 649 | printf("Random delay: %ld ms...\n", rand_ms); |
8e8d73b4 | 650 | mdelay(rand_ms); |
3090b7e3 | 651 | |
3861aa5c WD |
652 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
653 | ||
654 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
655 | pkt = NetTxPacket; | |
3090b7e3 | 656 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 657 | |
ae446f56 JH |
658 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
659 | pkt += eth_hdr_size; | |
3861aa5c WD |
660 | |
661 | /* | |
3090b7e3 JH |
662 | * Next line results in incorrect packet size being transmitted, |
663 | * resulting in errors in some DHCP servers, reporting missing bytes. | |
664 | * Size must be set in packet header after extension length has been | |
665 | * determined. | |
3861aa5c WD |
666 | * C. Hallinan, DS4.COM, Inc. |
667 | */ | |
4b11c916 | 668 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
3090b7e3 | 669 | sizeof (struct Bootp_t)); */ |
4b11c916 | 670 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
594c26f8 | 671 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 672 | |
3090b7e3 | 673 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
674 | bp->bp_op = OP_BOOTREQUEST; |
675 | bp->bp_htype = HWT_ETHER; | |
676 | bp->bp_hlen = HWL_ETHER; | |
677 | bp->bp_hops = 0; | |
49f3bdbb | 678 | bp->bp_secs = htons(get_timer(0) / 1000); |
3861aa5c WD |
679 | NetWriteIP(&bp->bp_ciaddr, 0); |
680 | NetWriteIP(&bp->bp_yiaddr, 0); | |
681 | NetWriteIP(&bp->bp_siaddr, 0); | |
682 | NetWriteIP(&bp->bp_giaddr, 0); | |
3090b7e3 JH |
683 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
684 | copy_filename(bp->bp_file, BootFile, sizeof(bp->bp_file)); | |
3861aa5c WD |
685 | |
686 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 687 | #if defined(CONFIG_CMD_DHCP) |
ae446f56 | 688 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_DISCOVER, 0, 0); |
3861aa5c | 689 | #else |
ae446f56 | 690 | extlen = BootpExtended((u8 *)bp->bp_vend); |
610f2e9c | 691 | #endif |
3861aa5c WD |
692 | |
693 | /* | |
694 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 695 | * plus the current time in ms. |
3861aa5c WD |
696 | */ |
697 | BootpID = ((ulong)NetOurEther[2] << 24) | |
698 | | ((ulong)NetOurEther[3] << 16) | |
699 | | ((ulong)NetOurEther[4] << 8) | |
700 | | (ulong)NetOurEther[5]; | |
701 | BootpID += get_timer(0); | |
232c150a | 702 | BootpID = htonl(BootpID); |
3861aa5c WD |
703 | NetCopyLong(&bp->bp_id, &BootpID); |
704 | ||
705 | /* | |
706 | * Calculate proper packet lengths taking into account the | |
707 | * variable size of the options field | |
708 | */ | |
ae446f56 JH |
709 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
710 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 711 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
f59be6e8 | 712 | NetSetTimeout(bootp_timeout, BootpTimeout); |
3861aa5c | 713 | |
643d1ab2 | 714 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 715 | dhcp_state = SELECTING; |
ece223b5 | 716 | net_set_udp_handler(DhcpHandler); |
3861aa5c | 717 | #else |
ece223b5 | 718 | net_set_udp_handler(BootpHandler); |
610f2e9c | 719 | #endif |
3861aa5c WD |
720 | NetSendPacket(NetTxPacket, pktlen); |
721 | } | |
722 | ||
643d1ab2 | 723 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 | 724 | static void DhcpOptionsProcess(uchar *popt, struct Bootp_t *bp) |
3861aa5c | 725 | { |
3e38691e | 726 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 727 | int oplen, size; |
d8d8724b WD |
728 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
729 | int *to_ptr; | |
730 | #endif | |
3861aa5c | 731 | |
232c150a | 732 | while (popt < end && *popt != 0xff) { |
3861aa5c | 733 | oplen = *(popt + 1); |
232c150a WD |
734 | switch (*popt) { |
735 | case 1: | |
3090b7e3 | 736 | NetCopyIP(&NetOurSubnetMask, (popt + 2)); |
232c150a | 737 | break; |
1fe80d79 | 738 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 739 | case 2: /* Time offset */ |
d8d8724b | 740 | to_ptr = &NetTimeOffset; |
3090b7e3 JH |
741 | NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2)); |
742 | NetTimeOffset = ntohl(NetTimeOffset); | |
ea287deb WD |
743 | break; |
744 | #endif | |
232c150a | 745 | case 3: |
3090b7e3 | 746 | NetCopyIP(&NetOurGatewayIP, (popt + 2)); |
232c150a WD |
747 | break; |
748 | case 6: | |
3090b7e3 | 749 | NetCopyIP(&NetOurDNSIP, (popt + 2)); |
1fe80d79 | 750 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 JH |
751 | if (*(popt + 1) > 4) |
752 | NetCopyIP(&NetOurDNS2IP, (popt + 2 + 4)); | |
fe389a82 | 753 | #endif |
232c150a WD |
754 | break; |
755 | case 12: | |
3090b7e3 JH |
756 | size = truncate_sz("Host Name", |
757 | sizeof(NetOurHostName), oplen); | |
758 | memcpy(&NetOurHostName, popt + 2, size); | |
232c150a WD |
759 | NetOurHostName[size] = 0; |
760 | break; | |
761 | case 15: /* Ignore Domain Name Option */ | |
762 | break; | |
763 | case 17: | |
3090b7e3 JH |
764 | size = truncate_sz("Root Path", |
765 | sizeof(NetOurRootPath), oplen); | |
766 | memcpy(&NetOurRootPath, popt + 2, size); | |
232c150a WD |
767 | NetOurRootPath[size] = 0; |
768 | break; | |
ee0f60df BR |
769 | case 28: /* Ignore Broadcast Address Option */ |
770 | break; | |
1fe80d79 | 771 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb | 772 | case 42: /* NTP server IP */ |
3090b7e3 | 773 | NetCopyIP(&NetNtpServerIP, (popt + 2)); |
ea287deb WD |
774 | break; |
775 | #endif | |
232c150a | 776 | case 51: |
3090b7e3 | 777 | NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2)); |
232c150a WD |
778 | break; |
779 | case 53: /* Ignore Message Type Option */ | |
780 | break; | |
781 | case 54: | |
3090b7e3 | 782 | NetCopyIP(&NetDHCPServerIP, (popt + 2)); |
232c150a WD |
783 | break; |
784 | case 58: /* Ignore Renewal Time Option */ | |
785 | break; | |
786 | case 59: /* Ignore Rebinding Time Option */ | |
787 | break; | |
3b2e4fd9 WD |
788 | case 66: /* Ignore TFTP server name */ |
789 | break; | |
790 | case 67: /* vendor opt bootfile */ | |
791 | /* | |
792 | * I can't use dhcp_vendorex_proc here because I need | |
793 | * to write into the bootp packet - even then I had to | |
794 | * pass the bootp packet pointer into here as the | |
795 | * second arg | |
796 | */ | |
3090b7e3 | 797 | size = truncate_sz("Opt Boot File", |
3b2e4fd9 WD |
798 | sizeof(bp->bp_file), |
799 | oplen); | |
800 | if (bp->bp_file[0] == '\0' && size > 0) { | |
801 | /* | |
802 | * only use vendor boot file if we didn't | |
803 | * receive a boot file in the main non-vendor | |
804 | * part of the packet - god only knows why | |
805 | * some vendors chose not to use this perfectly | |
806 | * good spot to store the boot file (join on | |
807 | * Tru64 Unix) it seems mind bogglingly crazy | |
808 | * to me | |
809 | */ | |
810 | printf("*** WARNING: using vendor " | |
811 | "optional boot file\n"); | |
812 | memcpy(bp->bp_file, popt + 2, size); | |
813 | bp->bp_file[size] = '\0'; | |
814 | } | |
815 | break; | |
232c150a | 816 | default: |
1fe80d79 | 817 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 | 818 | if (dhcp_vendorex_proc(popt)) |
8bde7f77 | 819 | break; |
3861aa5c | 820 | #endif |
3090b7e3 JH |
821 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
822 | " %d\n", *popt); | |
232c150a | 823 | break; |
3861aa5c WD |
824 | } |
825 | popt += oplen + 2; /* Process next option */ | |
826 | } | |
827 | } | |
828 | ||
829 | static int DhcpMessageType(unsigned char *popt) | |
830 | { | |
3090b7e3 | 831 | if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
3861aa5c WD |
832 | return -1; |
833 | ||
834 | popt += 4; | |
3090b7e3 JH |
835 | while (*popt != 0xff) { |
836 | if (*popt == 53) /* DHCP Message Type */ | |
3861aa5c WD |
837 | return *(popt + 2); |
838 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
839 | } | |
840 | return -1; | |
841 | } | |
842 | ||
3090b7e3 | 843 | static void DhcpSendRequestPkt(struct Bootp_t *bp_offer) |
3861aa5c | 844 | { |
db288a96 | 845 | uchar *pkt, *iphdr; |
3090b7e3 | 846 | struct Bootp_t *bp; |
3861aa5c | 847 | int pktlen, iplen, extlen; |
ae446f56 | 848 | int eth_hdr_size; |
47cd00fa | 849 | IPaddr_t OfferedIP; |
3861aa5c | 850 | |
0ebf04c6 | 851 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c | 852 | pkt = NetTxPacket; |
3090b7e3 | 853 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 854 | |
ae446f56 JH |
855 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
856 | pkt += eth_hdr_size; | |
3861aa5c | 857 | |
3090b7e3 | 858 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
594c26f8 | 859 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 860 | |
3090b7e3 | 861 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
862 | bp->bp_op = OP_BOOTREQUEST; |
863 | bp->bp_htype = HWT_ETHER; | |
864 | bp->bp_hlen = HWL_ETHER; | |
865 | bp->bp_hops = 0; | |
49f3bdbb | 866 | bp->bp_secs = htons(get_timer(0) / 1000); |
3090b7e3 JH |
867 | /* Do not set the client IP, your IP, or server IP yet, since it |
868 | * hasn't been ACK'ed by the server yet */ | |
e5c794e4 | 869 | |
c6686703 | 870 | /* |
d82718fe WD |
871 | * RFC3046 requires Relay Agents to discard packets with |
872 | * nonzero and offered giaddr | |
873 | */ | |
874 | NetWriteIP(&bp->bp_giaddr, 0); | |
875 | ||
3090b7e3 | 876 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
3861aa5c WD |
877 | |
878 | /* | |
879 | * ID is the id of the OFFER packet | |
880 | */ | |
881 | ||
882 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
883 | ||
884 | /* | |
885 | * Copy options from OFFER packet if present | |
886 | */ | |
e5c794e4 JF |
887 | |
888 | /* Copy offered IP into the parameters request list */ | |
889 | NetCopyIP(&OfferedIP, &bp_offer->bp_yiaddr); | |
3090b7e3 JH |
890 | extlen = DhcpExtended((u8 *)bp->bp_vend, DHCP_REQUEST, |
891 | NetDHCPServerIP, OfferedIP); | |
3861aa5c | 892 | |
ae446f56 JH |
893 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
894 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
4b11c916 | 895 | net_set_udp_header(iphdr, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, iplen); |
3861aa5c | 896 | |
d9a2f416 AV |
897 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
898 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
899 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
f9623229 | 900 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
3861aa5c WD |
901 | NetSendPacket(NetTxPacket, pktlen); |
902 | } | |
903 | ||
904 | /* | |
905 | * Handle DHCP received packets. | |
906 | */ | |
907 | static void | |
03eb129f LC |
908 | DhcpHandler(uchar *pkt, unsigned dest, IPaddr_t sip, unsigned src, |
909 | unsigned len) | |
3861aa5c | 910 | { |
3090b7e3 | 911 | struct Bootp_t *bp = (struct Bootp_t *)pkt; |
3861aa5c | 912 | |
0ebf04c6 | 913 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
914 | src, dest, len, dhcp_state); |
915 | ||
3090b7e3 JH |
916 | /* Filter out pkts we don't want */ |
917 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
918 | return; |
919 | ||
3090b7e3 JH |
920 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state:" |
921 | " %d\n", src, dest, len, dhcp_state); | |
3861aa5c WD |
922 | |
923 | switch (dhcp_state) { | |
924 | case SELECTING: | |
925 | /* | |
926 | * Wait an appropriate time for any potential DHCPOFFER packets | |
3090b7e3 JH |
927 | * to arrive. Then select one, and generate DHCPREQUEST |
928 | * response. If filename is in format we recognize, assume it | |
929 | * is a valid OFFER from a server we want. | |
3861aa5c | 930 | */ |
0ebf04c6 | 931 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 932 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 933 | if (strncmp(bp->bp_file, |
6d0f6bcf | 934 | CONFIG_SYS_BOOTFILE_PREFIX, |
3090b7e3 | 935 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
6d0f6bcf | 936 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c | 937 | |
0ebf04c6 | 938 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 939 | dhcp_state = REQUESTING; |
759a51b4 | 940 | |
3090b7e3 JH |
941 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == |
942 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 943 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 944 | |
f59be6e8 | 945 | NetSetTimeout(5000, BootpTimeout); |
3861aa5c | 946 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 947 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 948 | } |
6d0f6bcf | 949 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
950 | |
951 | return; | |
952 | break; | |
953 | case REQUESTING: | |
0ebf04c6 | 954 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 955 | |
3090b7e3 JH |
956 | if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { |
957 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == | |
958 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 959 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3090b7e3 JH |
960 | /* Store net params from reply */ |
961 | BootpCopyNetParams(bp); | |
3861aa5c | 962 | dhcp_state = BOUND; |
3090b7e3 JH |
963 | printf("DHCP client bound to address %pI4\n", |
964 | &NetOurIP); | |
573f14fe | 965 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
3090b7e3 | 966 | "bootp_stop"); |
3861aa5c | 967 | |
e4a3d57d | 968 | net_auto_load(); |
3861aa5c WD |
969 | return; |
970 | } | |
971 | break; | |
51dfe138 RB |
972 | case BOUND: |
973 | /* DHCP client bound to address */ | |
974 | break; | |
3861aa5c | 975 | default: |
3090b7e3 | 976 | puts("DHCP: INVALID STATE\n"); |
3861aa5c WD |
977 | break; |
978 | } | |
979 | ||
980 | } | |
981 | ||
982 | void DhcpRequest(void) | |
983 | { | |
984 | BootpRequest(); | |
985 | } | |
992742a5 | 986 | #endif /* CONFIG_CMD_DHCP */ |