]>
Commit | Line | Data |
---|---|---|
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 | ||
92ac8acc TR |
50 | #ifndef CONFIG_BOOTP_ID_CACHE_SIZE |
51 | #define CONFIG_BOOTP_ID_CACHE_SIZE 4 | |
52 | #endif | |
53 | ||
54 | ulong bootp_ids[CONFIG_BOOTP_ID_CACHE_SIZE]; | |
55 | unsigned int bootp_num_ids; | |
3861aa5c | 56 | int BootpTry; |
f59be6e8 SW |
57 | ulong bootp_start; |
58 | ulong bootp_timeout; | |
3861aa5c | 59 | |
643d1ab2 | 60 | #if defined(CONFIG_CMD_DHCP) |
06370590 KP |
61 | static dhcp_state_t dhcp_state = INIT; |
62 | static unsigned long dhcp_leasetime; | |
049a95a7 JH |
63 | static struct in_addr dhcp_server_ip; |
64 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, | |
65 | unsigned src, unsigned len); | |
3861aa5c WD |
66 | |
67 | /* For Debug */ | |
3e38691e WD |
68 | #if 0 |
69 | static char *dhcpmsg2str(int type) | |
3861aa5c WD |
70 | { |
71 | switch (type) { | |
232c150a WD |
72 | case 1: return "DHCPDISCOVER"; break; |
73 | case 2: return "DHCPOFFER"; break; | |
74 | case 3: return "DHCPREQUEST"; break; | |
75 | case 4: return "DHCPDECLINE"; break; | |
76 | case 5: return "DHCPACK"; break; | |
77 | case 6: return "DHCPNACK"; break; | |
78 | case 7: return "DHCPRELEASE"; break; | |
3861aa5c WD |
79 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
80 | } | |
81 | } | |
3e38691e | 82 | #endif |
610f2e9c | 83 | #endif |
3861aa5c | 84 | |
92ac8acc TR |
85 | static void bootp_add_id(ulong id) |
86 | { | |
87 | if (bootp_num_ids >= ARRAY_SIZE(bootp_ids)) { | |
88 | size_t size = sizeof(bootp_ids) - sizeof(id); | |
89 | ||
90 | memmove(bootp_ids, &bootp_ids[1], size); | |
91 | bootp_ids[bootp_num_ids - 1] = id; | |
92 | } else { | |
93 | bootp_ids[bootp_num_ids] = id; | |
94 | bootp_num_ids++; | |
95 | } | |
96 | } | |
97 | ||
98 | static bool bootp_match_id(ulong id) | |
99 | { | |
100 | unsigned int i; | |
101 | ||
102 | for (i = 0; i < bootp_num_ids; i++) | |
103 | if (bootp_ids[i] == id) | |
104 | return true; | |
105 | ||
106 | return false; | |
107 | } | |
108 | ||
3861aa5c WD |
109 | static int BootpCheckPkt(uchar *pkt, unsigned dest, unsigned src, unsigned len) |
110 | { | |
3090b7e3 | 111 | struct Bootp_t *bp = (struct Bootp_t *) pkt; |
3861aa5c WD |
112 | int retval = 0; |
113 | ||
114 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) | |
115 | retval = -1; | |
f8315731 | 116 | else if (len < sizeof(struct Bootp_t) - OPT_FIELD_SIZE) |
3861aa5c WD |
117 | retval = -2; |
118 | else if (bp->bp_op != OP_BOOTREQUEST && | |
3090b7e3 JH |
119 | bp->bp_op != OP_BOOTREPLY && |
120 | bp->bp_op != DHCP_OFFER && | |
121 | bp->bp_op != DHCP_ACK && | |
122 | bp->bp_op != DHCP_NAK) | |
3861aa5c | 123 | retval = -3; |
3861aa5c WD |
124 | else if (bp->bp_htype != HWT_ETHER) |
125 | retval = -4; | |
126 | else if (bp->bp_hlen != HWL_ETHER) | |
127 | retval = -5; | |
92ac8acc | 128 | else if (!bootp_match_id(NetReadLong((ulong *)&bp->bp_id))) |
3861aa5c | 129 | retval = -6; |
3861aa5c | 130 | |
0ebf04c6 | 131 | debug("Filtering pkt = %d\n", retval); |
3861aa5c WD |
132 | |
133 | return retval; | |
134 | } | |
135 | ||
136 | /* | |
137 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet | |
138 | */ | |
3090b7e3 | 139 | static void BootpCopyNetParams(struct Bootp_t *bp) |
3861aa5c | 140 | { |
5d110f0a | 141 | #if !defined(CONFIG_BOOTP_SERVERIP) |
049a95a7 | 142 | struct in_addr tmp_ip; |
1752f0fd | 143 | |
049a95a7 JH |
144 | net_copy_ip(&tmp_ip, &bp->bp_siaddr); |
145 | if (tmp_ip.s_addr != 0) | |
146 | net_copy_ip(&net_server_ip, &bp->bp_siaddr); | |
cb487f56 | 147 | memcpy(NetServerEther, ((struct ethernet_hdr *)NetRxPacket)->et_src, 6); |
3d3befa7 | 148 | if (strlen(bp->bp_file) > 0) |
1411157d JH |
149 | copy_filename(net_boot_file_name, bp->bp_file, |
150 | sizeof(net_boot_file_name)); | |
3861aa5c | 151 | |
1411157d | 152 | debug("net_boot_file_name: %s\n", net_boot_file_name); |
3861aa5c WD |
153 | |
154 | /* Propagate to environment: | |
8bde7f77 | 155 | * don't delete exising entry when BOOTP / DHCP reply does |
3861aa5c WD |
156 | * not contain a new value |
157 | */ | |
1411157d JH |
158 | if (*net_boot_file_name) |
159 | setenv("bootfile", net_boot_file_name); | |
ecec4e9c | 160 | #endif |
049a95a7 | 161 | net_copy_ip(&net_ip, &bp->bp_yiaddr); |
3861aa5c WD |
162 | } |
163 | ||
3090b7e3 | 164 | static int truncate_sz(const char *name, int maxlen, int curlen) |
3861aa5c WD |
165 | { |
166 | if (curlen >= maxlen) { | |
3090b7e3 JH |
167 | printf("*** WARNING: %s is too long (%d - max: %d)" |
168 | " - truncated\n", name, curlen, maxlen); | |
3861aa5c WD |
169 | curlen = maxlen - 1; |
170 | } | |
3090b7e3 | 171 | return curlen; |
3861aa5c WD |
172 | } |
173 | ||
643d1ab2 | 174 | #if !defined(CONFIG_CMD_DHCP) |
3861aa5c | 175 | |
3090b7e3 | 176 | static void BootpVendorFieldProcess(u8 *ext) |
3861aa5c | 177 | { |
232c150a | 178 | int size = *(ext + 1); |
3861aa5c | 179 | |
0ebf04c6 | 180 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
3090b7e3 | 181 | *(ext + 1)); |
3861aa5c | 182 | |
1411157d | 183 | net_boot_file_expected_size_in_blocks = 0; |
3861aa5c | 184 | |
232c150a WD |
185 | switch (*ext) { |
186 | /* Fixed length fields */ | |
3090b7e3 | 187 | case 1: /* Subnet mask */ |
049a95a7 JH |
188 | if (net_netmask.s_addr == 0) |
189 | net_copy_ip(&net_netmask, (struct in_addr *)(ext + 2)); | |
3861aa5c | 190 | break; |
3090b7e3 | 191 | case 2: /* Time offset - Not yet supported */ |
3861aa5c | 192 | break; |
232c150a | 193 | /* Variable length fields */ |
3090b7e3 | 194 | case 3: /* Gateways list */ |
049a95a7 JH |
195 | if (net_gateway.s_addr == 0) |
196 | net_copy_ip(&net_gateway, (struct in_addr *)(ext + 2)); | |
3861aa5c | 197 | break; |
3090b7e3 | 198 | case 4: /* Time server - Not yet supported */ |
3861aa5c | 199 | break; |
3090b7e3 | 200 | case 5: /* IEN-116 name server - Not yet supported */ |
3861aa5c WD |
201 | break; |
202 | case 6: | |
049a95a7 JH |
203 | if (net_dns_server.s_addr == 0) |
204 | net_copy_ip(&net_dns_server, | |
205 | (struct in_addr *)(ext + 2)); | |
1fe80d79 | 206 | #if defined(CONFIG_BOOTP_DNS2) |
049a95a7 JH |
207 | if ((net_dns_server2.s_addr == 0) && (size > 4)) |
208 | net_copy_ip(&net_dns_server2, | |
209 | (struct in_addr *)(ext + 2 + 4)); | |
fe389a82 | 210 | #endif |
3861aa5c | 211 | break; |
3090b7e3 | 212 | case 7: /* Log server - Not yet supported */ |
3861aa5c | 213 | break; |
3090b7e3 | 214 | case 8: /* Cookie/Quote server - Not yet supported */ |
3861aa5c | 215 | break; |
3090b7e3 | 216 | case 9: /* LPR server - Not yet supported */ |
3861aa5c | 217 | break; |
3090b7e3 | 218 | case 10: /* Impress server - Not yet supported */ |
3861aa5c | 219 | break; |
3090b7e3 | 220 | case 11: /* RPL server - Not yet supported */ |
3861aa5c | 221 | break; |
3090b7e3 | 222 | case 12: /* Host name */ |
3861aa5c | 223 | if (NetOurHostName[0] == 0) { |
3090b7e3 JH |
224 | size = truncate_sz("Host Name", |
225 | sizeof(NetOurHostName), size); | |
226 | memcpy(&NetOurHostName, ext + 2, size); | |
232c150a | 227 | NetOurHostName[size] = 0; |
3861aa5c WD |
228 | } |
229 | break; | |
3090b7e3 | 230 | case 13: /* Boot file size */ |
3861aa5c | 231 | if (size == 2) |
1411157d JH |
232 | net_boot_file_expected_size_in_blocks = |
233 | ntohs(*(ushort *)(ext + 2)); | |
3861aa5c | 234 | else if (size == 4) |
1411157d JH |
235 | net_boot_file_expected_size_in_blocks = |
236 | ntohl(*(ulong *)(ext + 2)); | |
3861aa5c | 237 | break; |
3090b7e3 | 238 | case 14: /* Merit dump file - Not yet supported */ |
3861aa5c | 239 | break; |
3090b7e3 | 240 | case 15: /* Domain name - Not yet supported */ |
3861aa5c | 241 | break; |
3090b7e3 | 242 | case 16: /* Swap server - Not yet supported */ |
3861aa5c | 243 | break; |
3090b7e3 | 244 | case 17: /* Root path */ |
3861aa5c | 245 | if (NetOurRootPath[0] == 0) { |
3090b7e3 JH |
246 | size = truncate_sz("Root Path", |
247 | sizeof(NetOurRootPath), size); | |
248 | memcpy(&NetOurRootPath, ext + 2, size); | |
232c150a | 249 | NetOurRootPath[size] = 0; |
3861aa5c WD |
250 | } |
251 | break; | |
3090b7e3 | 252 | case 18: /* Extension path - Not yet supported */ |
3861aa5c | 253 | /* |
8bde7f77 WD |
254 | * This can be used to send the information of the |
255 | * vendor area in another file that the client can | |
256 | * access via TFTP. | |
3861aa5c WD |
257 | */ |
258 | break; | |
232c150a | 259 | /* IP host layer fields */ |
3090b7e3 | 260 | case 40: /* NIS Domain name */ |
3861aa5c | 261 | if (NetOurNISDomain[0] == 0) { |
3090b7e3 JH |
262 | size = truncate_sz("NIS Domain Name", |
263 | sizeof(NetOurNISDomain), size); | |
264 | memcpy(&NetOurNISDomain, ext + 2, size); | |
232c150a | 265 | NetOurNISDomain[size] = 0; |
3861aa5c WD |
266 | } |
267 | break; | |
09e3a67d LP |
268 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
269 | case 42: /* NTP server IP */ | |
049a95a7 | 270 | net_copy_ip(&net_ntp_server, (struct in_addr *)(ext + 2)); |
09e3a67d LP |
271 | break; |
272 | #endif | |
232c150a | 273 | /* Application layer fields */ |
3090b7e3 | 274 | case 43: /* Vendor specific info - Not yet supported */ |
3861aa5c | 275 | /* |
8bde7f77 WD |
276 | * Binary information to exchange specific |
277 | * product information. | |
3861aa5c WD |
278 | */ |
279 | break; | |
232c150a WD |
280 | /* Reserved (custom) fields (128..254) */ |
281 | } | |
3861aa5c WD |
282 | } |
283 | ||
3090b7e3 | 284 | static void BootpVendorProcess(u8 *ext, int size) |
3861aa5c | 285 | { |
232c150a | 286 | u8 *end = ext + size; |
3861aa5c | 287 | |
0ebf04c6 | 288 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
3861aa5c | 289 | |
232c150a WD |
290 | while ((ext < end) && (*ext != 0xff)) { |
291 | if (*ext == 0) { | |
292 | ext++; | |
293 | } else { | |
294 | u8 *opt = ext; | |
295 | ||
296 | ext += ext[1] + 2; | |
297 | if (ext <= end) | |
3090b7e3 | 298 | BootpVendorFieldProcess(opt); |
232c150a | 299 | } |
3861aa5c | 300 | } |
3861aa5c | 301 | |
3090b7e3 | 302 | debug("[BOOTP] Received fields:\n"); |
049a95a7 JH |
303 | if (net_netmask.s_addr) |
304 | debug("net_netmask : %pI4\n", &net_netmask); | |
232c150a | 305 | |
049a95a7 JH |
306 | if (net_gateway.s_addr) |
307 | debug("net_gateway : %pI4", &net_gateway); | |
232c150a | 308 | |
1411157d JH |
309 | if (net_boot_file_expected_size_in_blocks) |
310 | debug("net_boot_file_expected_size_in_blocks : %d\n", | |
311 | net_boot_file_expected_size_in_blocks); | |
3861aa5c | 312 | |
0ebf04c6 RG |
313 | if (NetOurHostName[0]) |
314 | debug("NetOurHostName : %s\n", NetOurHostName); | |
232c150a | 315 | |
0ebf04c6 RG |
316 | if (NetOurRootPath[0]) |
317 | debug("NetOurRootPath : %s\n", NetOurRootPath); | |
232c150a | 318 | |
0ebf04c6 RG |
319 | if (NetOurNISDomain[0]) |
320 | debug("NetOurNISDomain : %s\n", NetOurNISDomain); | |
232c150a | 321 | |
09e3a67d | 322 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
049a95a7 JH |
323 | if (net_ntp_server) |
324 | debug("net_ntp_server : %pI4\n", &net_ntp_server); | |
09e3a67d | 325 | #endif |
232c150a | 326 | } |
09349866 | 327 | |
3861aa5c WD |
328 | /* |
329 | * Handle a BOOTP received packet. | |
330 | */ | |
049a95a7 JH |
331 | static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
332 | unsigned src, unsigned len) | |
3861aa5c | 333 | { |
3090b7e3 | 334 | struct Bootp_t *bp; |
3861aa5c | 335 | |
0ebf04c6 | 336 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
3090b7e3 | 337 | src, dest, len, sizeof(struct Bootp_t)); |
3861aa5c | 338 | |
3090b7e3 | 339 | bp = (struct Bootp_t *)pkt; |
3861aa5c | 340 | |
3090b7e3 JH |
341 | /* Filter out pkts we don't want */ |
342 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
343 | return; |
344 | ||
345 | /* | |
232c150a | 346 | * Got a good BOOTP reply. Copy the data into our variables. |
3861aa5c WD |
347 | */ |
348 | #ifdef CONFIG_STATUS_LED | |
3090b7e3 | 349 | status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); |
3861aa5c WD |
350 | #endif |
351 | ||
352 | BootpCopyNetParams(bp); /* Store net parameters from reply */ | |
353 | ||
354 | /* Retrieve extended information (we must parse the vendor area) */ | |
3090b7e3 | 355 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
77ddac94 | 356 | BootpVendorProcess((uchar *)&bp->bp_vend[4], len); |
3861aa5c WD |
357 | |
358 | NetSetTimeout(0, (thand_f *)0); | |
573f14fe | 359 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
3861aa5c | 360 | |
0ebf04c6 | 361 | debug("Got good BOOTP\n"); |
3861aa5c | 362 | |
e4a3d57d | 363 | net_auto_load(); |
3861aa5c | 364 | } |
610f2e9c | 365 | #endif |
3861aa5c WD |
366 | |
367 | /* | |
368 | * Timeout on BOOTP/DHCP request. | |
369 | */ | |
370 | static void | |
371 | BootpTimeout(void) | |
372 | { | |
f59be6e8 SW |
373 | ulong time_taken = get_timer(bootp_start); |
374 | ||
375 | if (time_taken >= TIMEOUT_MS) { | |
2c00e099 | 376 | #ifdef CONFIG_BOOTP_MAY_FAIL |
f59be6e8 | 377 | puts("\nRetry time exceeded\n"); |
b977aa80 | 378 | net_set_state(NETLOOP_FAIL); |
2c00e099 | 379 | #else |
f59be6e8 | 380 | puts("\nRetry time exceeded; starting again\n"); |
3090b7e3 | 381 | NetStartAgain(); |
2c00e099 | 382 | #endif |
3861aa5c | 383 | } else { |
f59be6e8 | 384 | bootp_timeout *= 2; |
92ac8acc TR |
385 | if (bootp_timeout > 2000) |
386 | bootp_timeout = 2000; | |
f59be6e8 | 387 | NetSetTimeout(bootp_timeout, BootpTimeout); |
3090b7e3 | 388 | BootpRequest(); |
3861aa5c WD |
389 | } |
390 | } | |
391 | ||
9ace17c8 IY |
392 | #define put_vci(e, str) \ |
393 | do { \ | |
394 | size_t vci_strlen = strlen(str); \ | |
395 | *e++ = 60; /* Vendor Class Identifier */ \ | |
396 | *e++ = vci_strlen; \ | |
397 | memcpy(e, str, vci_strlen); \ | |
398 | e += vci_strlen; \ | |
399 | } while (0) | |
400 | ||
3861aa5c WD |
401 | /* |
402 | * Initialize BOOTP extension fields in the request. | |
403 | */ | |
643d1ab2 | 404 | #if defined(CONFIG_CMD_DHCP) |
049a95a7 JH |
405 | static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip, |
406 | struct in_addr requested_ip) | |
3861aa5c | 407 | { |
232c150a WD |
408 | u8 *start = e; |
409 | u8 *cnt; | |
d2b5d5c4 JH |
410 | #if defined(CONFIG_BOOTP_PXE) |
411 | char *uuid; | |
d2b5d5c4 JH |
412 | u16 clientarch; |
413 | #endif | |
232c150a | 414 | |
1fe80d79 | 415 | #if defined(CONFIG_BOOTP_VENDOREX) |
232c150a | 416 | u8 *x; |
3861aa5c | 417 | #endif |
1fe80d79 | 418 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
77ddac94 | 419 | char *hostname; |
fe389a82 | 420 | #endif |
3861aa5c | 421 | |
232c150a WD |
422 | *e++ = 99; /* RFC1048 Magic Cookie */ |
423 | *e++ = 130; | |
424 | *e++ = 83; | |
425 | *e++ = 99; | |
3861aa5c | 426 | |
232c150a WD |
427 | *e++ = 53; /* DHCP Message Type */ |
428 | *e++ = 1; | |
429 | *e++ = message_type; | |
3861aa5c | 430 | |
232c150a WD |
431 | *e++ = 57; /* Maximum DHCP Message Size */ |
432 | *e++ = 2; | |
f8315731 JH |
433 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
434 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
3861aa5c | 435 | |
049a95a7 JH |
436 | if (server_ip.s_addr) { |
437 | int tmp = ntohl(server_ip.s_addr); | |
3861aa5c | 438 | |
232c150a WD |
439 | *e++ = 54; /* ServerID */ |
440 | *e++ = 4; | |
441 | *e++ = tmp >> 24; | |
442 | *e++ = tmp >> 16; | |
443 | *e++ = tmp >> 8; | |
444 | *e++ = tmp & 0xff; | |
445 | } | |
3861aa5c | 446 | |
049a95a7 JH |
447 | if (requested_ip.s_addr) { |
448 | int tmp = ntohl(requested_ip.s_addr); | |
3861aa5c | 449 | |
232c150a WD |
450 | *e++ = 50; /* Requested IP */ |
451 | *e++ = 4; | |
452 | *e++ = tmp >> 24; | |
453 | *e++ = tmp >> 16; | |
454 | *e++ = tmp >> 8; | |
455 | *e++ = tmp & 0xff; | |
456 | } | |
1fe80d79 | 457 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
3090b7e3 JH |
458 | hostname = getenv("hostname"); |
459 | if (hostname) { | |
460 | int hostnamelen = strlen(hostname); | |
232c150a WD |
461 | |
462 | *e++ = 12; /* Hostname */ | |
463 | *e++ = hostnamelen; | |
3090b7e3 | 464 | memcpy(e, hostname, hostnamelen); |
232c150a WD |
465 | e += hostnamelen; |
466 | } | |
fe389a82 SR |
467 | #endif |
468 | ||
d2b5d5c4 JH |
469 | #if defined(CONFIG_BOOTP_PXE) |
470 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; | |
471 | *e++ = 93; /* Client System Architecture */ | |
472 | *e++ = 2; | |
473 | *e++ = (clientarch >> 8) & 0xff; | |
474 | *e++ = clientarch & 0xff; | |
475 | ||
476 | *e++ = 94; /* Client Network Interface Identifier */ | |
477 | *e++ = 3; | |
478 | *e++ = 1; /* type field for UNDI */ | |
479 | *e++ = 0; /* major revision */ | |
480 | *e++ = 0; /* minor revision */ | |
481 | ||
482 | uuid = getenv("pxeuuid"); | |
483 | ||
484 | if (uuid) { | |
485 | if (uuid_str_valid(uuid)) { | |
486 | *e++ = 97; /* Client Machine Identifier */ | |
487 | *e++ = 17; | |
488 | *e++ = 0; /* type 0 - UUID */ | |
489 | ||
d718ded0 | 490 | uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD); |
d2b5d5c4 JH |
491 | e += 16; |
492 | } else { | |
493 | printf("Invalid pxeuuid: %s\n", uuid); | |
494 | } | |
495 | } | |
9ace17c8 | 496 | #endif |
d2b5d5c4 | 497 | |
9ace17c8 IY |
498 | #ifdef CONFIG_BOOTP_VCI_STRING |
499 | put_vci(e, CONFIG_BOOTP_VCI_STRING); | |
d2b5d5c4 JH |
500 | #endif |
501 | ||
1fe80d79 | 502 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 JH |
503 | x = dhcp_vendorex_prep(e); |
504 | if (x) | |
232c150a | 505 | return x - start; |
3861aa5c WD |
506 | #endif |
507 | ||
232c150a WD |
508 | *e++ = 55; /* Parameter Request List */ |
509 | cnt = e++; /* Pointer to count of requested items */ | |
510 | *cnt = 0; | |
1fe80d79 | 511 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
512 | *e++ = 1; /* Subnet Mask */ |
513 | *cnt += 1; | |
3861aa5c | 514 | #endif |
1fe80d79 | 515 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb WD |
516 | *e++ = 2; |
517 | *cnt += 1; | |
518 | #endif | |
1fe80d79 | 519 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
520 | *e++ = 3; /* Router Option */ |
521 | *cnt += 1; | |
3861aa5c | 522 | #endif |
1fe80d79 | 523 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
524 | *e++ = 6; /* DNS Server(s) */ |
525 | *cnt += 1; | |
3861aa5c | 526 | #endif |
1fe80d79 | 527 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
528 | *e++ = 12; /* Hostname */ |
529 | *cnt += 1; | |
3861aa5c | 530 | #endif |
1fe80d79 | 531 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
532 | *e++ = 13; /* Boot File Size */ |
533 | *cnt += 1; | |
3861aa5c | 534 | #endif |
1fe80d79 | 535 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
536 | *e++ = 17; /* Boot path */ |
537 | *cnt += 1; | |
3861aa5c | 538 | #endif |
1fe80d79 | 539 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
540 | *e++ = 40; /* NIS Domain name request */ |
541 | *cnt += 1; | |
ea287deb | 542 | #endif |
1fe80d79 | 543 | #if defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb WD |
544 | *e++ = 42; |
545 | *cnt += 1; | |
3861aa5c | 546 | #endif |
258ccd68 JL |
547 | /* no options, so back up to avoid sending an empty request list */ |
548 | if (*cnt == 0) | |
549 | e -= 2; | |
550 | ||
232c150a | 551 | *e++ = 255; /* End of the list */ |
3861aa5c | 552 | |
232c150a | 553 | /* Pad to minimal length */ |
3861aa5c | 554 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
21076f61 | 555 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
232c150a | 556 | *e++ = 0; |
3861aa5c WD |
557 | #endif |
558 | ||
232c150a | 559 | return e - start; |
3861aa5c WD |
560 | } |
561 | ||
610f2e9c | 562 | #else |
3861aa5c | 563 | /* |
3090b7e3 | 564 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
3861aa5c | 565 | */ |
049a95a7 | 566 | static int bootp_extended(u8 *e) |
3861aa5c | 567 | { |
232c150a | 568 | u8 *start = e; |
3861aa5c | 569 | |
232c150a WD |
570 | *e++ = 99; /* RFC1048 Magic Cookie */ |
571 | *e++ = 130; | |
572 | *e++ = 83; | |
573 | *e++ = 99; | |
3861aa5c | 574 | |
643d1ab2 | 575 | #if defined(CONFIG_CMD_DHCP) |
232c150a WD |
576 | *e++ = 53; /* DHCP Message Type */ |
577 | *e++ = 1; | |
578 | *e++ = DHCP_DISCOVER; | |
579 | ||
580 | *e++ = 57; /* Maximum DHCP Message Size */ | |
581 | *e++ = 2; | |
f8315731 JH |
582 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
583 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; | |
610f2e9c | 584 | #endif |
3861aa5c | 585 | |
7ac2fe2d IY |
586 | #if defined(CONFIG_BOOTP_VCI_STRING) || \ |
587 | (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING)) | |
588 | #ifdef CONFIG_SPL_BUILD | |
589 | put_vci(e, CONFIG_SPL_NET_VCI_STRING); | |
590 | #else | |
9ace17c8 IY |
591 | put_vci(e, CONFIG_BOOTP_VCI_STRING); |
592 | #endif | |
7ac2fe2d | 593 | #endif |
9ace17c8 | 594 | |
1fe80d79 | 595 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
232c150a WD |
596 | *e++ = 1; /* Subnet mask request */ |
597 | *e++ = 4; | |
598 | e += 4; | |
3861aa5c WD |
599 | #endif |
600 | ||
1fe80d79 | 601 | #if defined(CONFIG_BOOTP_GATEWAY) |
232c150a WD |
602 | *e++ = 3; /* Default gateway request */ |
603 | *e++ = 4; | |
604 | e += 4; | |
3861aa5c WD |
605 | #endif |
606 | ||
1fe80d79 | 607 | #if defined(CONFIG_BOOTP_DNS) |
232c150a WD |
608 | *e++ = 6; /* Domain Name Server */ |
609 | *e++ = 4; | |
610 | e += 4; | |
3861aa5c WD |
611 | #endif |
612 | ||
1fe80d79 | 613 | #if defined(CONFIG_BOOTP_HOSTNAME) |
232c150a WD |
614 | *e++ = 12; /* Host name request */ |
615 | *e++ = 32; | |
616 | e += 32; | |
3861aa5c WD |
617 | #endif |
618 | ||
1fe80d79 | 619 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
232c150a WD |
620 | *e++ = 13; /* Boot file size */ |
621 | *e++ = 2; | |
622 | e += 2; | |
3861aa5c WD |
623 | #endif |
624 | ||
1fe80d79 | 625 | #if defined(CONFIG_BOOTP_BOOTPATH) |
232c150a WD |
626 | *e++ = 17; /* Boot path */ |
627 | *e++ = 32; | |
628 | e += 32; | |
3861aa5c WD |
629 | #endif |
630 | ||
1fe80d79 | 631 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
232c150a WD |
632 | *e++ = 40; /* NIS Domain name request */ |
633 | *e++ = 32; | |
634 | e += 32; | |
3861aa5c | 635 | #endif |
09e3a67d LP |
636 | #if defined(CONFIG_BOOTP_NTPSERVER) |
637 | *e++ = 42; | |
638 | *e++ = 4; | |
639 | e += 4; | |
640 | #endif | |
3861aa5c | 641 | |
232c150a | 642 | *e++ = 255; /* End of the list */ |
3861aa5c | 643 | |
232c150a | 644 | return e - start; |
3861aa5c | 645 | } |
610f2e9c | 646 | #endif |
3861aa5c | 647 | |
f59be6e8 SW |
648 | void BootpReset(void) |
649 | { | |
92ac8acc | 650 | bootp_num_ids = 0; |
f59be6e8 SW |
651 | BootpTry = 0; |
652 | bootp_start = get_timer(0); | |
92ac8acc | 653 | bootp_timeout = 250; |
f59be6e8 SW |
654 | } |
655 | ||
3861aa5c | 656 | void |
3090b7e3 | 657 | BootpRequest(void) |
3861aa5c | 658 | { |
db288a96 | 659 | uchar *pkt, *iphdr; |
3090b7e3 | 660 | struct Bootp_t *bp; |
ae446f56 JH |
661 | int extlen, pktlen, iplen; |
662 | int eth_hdr_size; | |
eafc8db0 | 663 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
8e8d73b4 | 664 | ulong rand_ms; |
eafc8db0 | 665 | #endif |
92ac8acc | 666 | ulong BootpID; |
049a95a7 JH |
667 | struct in_addr zero_ip; |
668 | struct in_addr bcast_ip; | |
3861aa5c | 669 | |
573f14fe | 670 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
643d1ab2 | 671 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c WD |
672 | dhcp_state = INIT; |
673 | #endif | |
674 | ||
675 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ | |
eafc8db0 JH |
676 | if (BootpTry == 0) |
677 | srand_mac(); | |
3861aa5c | 678 | |
eafc8db0 JH |
679 | if (BootpTry <= 2) /* Start with max 1024 * 1ms */ |
680 | rand_ms = rand() >> (22 - BootpTry); | |
681 | else /* After 3rd BOOTP request max 8192 * 1ms */ | |
682 | rand_ms = rand() >> 19; | |
3861aa5c | 683 | |
eafc8db0 | 684 | printf("Random delay: %ld ms...\n", rand_ms); |
8e8d73b4 | 685 | mdelay(rand_ms); |
3090b7e3 | 686 | |
3861aa5c WD |
687 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
688 | ||
689 | printf("BOOTP broadcast %d\n", ++BootpTry); | |
690 | pkt = NetTxPacket; | |
3090b7e3 | 691 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 692 | |
ae446f56 JH |
693 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
694 | pkt += eth_hdr_size; | |
3861aa5c WD |
695 | |
696 | /* | |
3090b7e3 JH |
697 | * Next line results in incorrect packet size being transmitted, |
698 | * resulting in errors in some DHCP servers, reporting missing bytes. | |
699 | * Size must be set in packet header after extension length has been | |
700 | * determined. | |
3861aa5c WD |
701 | * C. Hallinan, DS4.COM, Inc. |
702 | */ | |
4b11c916 | 703 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
3090b7e3 | 704 | sizeof (struct Bootp_t)); */ |
4b11c916 | 705 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
594c26f8 | 706 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 707 | |
3090b7e3 | 708 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
709 | bp->bp_op = OP_BOOTREQUEST; |
710 | bp->bp_htype = HWT_ETHER; | |
711 | bp->bp_hlen = HWL_ETHER; | |
712 | bp->bp_hops = 0; | |
49f3bdbb | 713 | bp->bp_secs = htons(get_timer(0) / 1000); |
049a95a7 JH |
714 | zero_ip.s_addr = 0; |
715 | net_write_ip(&bp->bp_ciaddr, zero_ip); | |
716 | net_write_ip(&bp->bp_yiaddr, zero_ip); | |
717 | net_write_ip(&bp->bp_siaddr, zero_ip); | |
718 | net_write_ip(&bp->bp_giaddr, zero_ip); | |
3090b7e3 | 719 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
1411157d | 720 | copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file)); |
3861aa5c WD |
721 | |
722 | /* Request additional information from the BOOTP/DHCP server */ | |
643d1ab2 | 723 | #if defined(CONFIG_CMD_DHCP) |
049a95a7 JH |
724 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_DISCOVER, zero_ip, |
725 | zero_ip); | |
3861aa5c | 726 | #else |
049a95a7 | 727 | extlen = bootp_extended((u8 *)bp->bp_vend); |
610f2e9c | 728 | #endif |
3861aa5c WD |
729 | |
730 | /* | |
731 | * Bootp ID is the lower 4 bytes of our ethernet address | |
49f3bdbb | 732 | * plus the current time in ms. |
3861aa5c WD |
733 | */ |
734 | BootpID = ((ulong)NetOurEther[2] << 24) | |
735 | | ((ulong)NetOurEther[3] << 16) | |
736 | | ((ulong)NetOurEther[4] << 8) | |
737 | | (ulong)NetOurEther[5]; | |
738 | BootpID += get_timer(0); | |
92ac8acc TR |
739 | BootpID = htonl(BootpID); |
740 | bootp_add_id(BootpID); | |
3861aa5c WD |
741 | NetCopyLong(&bp->bp_id, &BootpID); |
742 | ||
743 | /* | |
744 | * Calculate proper packet lengths taking into account the | |
745 | * variable size of the options field | |
746 | */ | |
ae446f56 JH |
747 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
748 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
049a95a7 JH |
749 | bcast_ip.s_addr = 0xFFFFFFFFL; |
750 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
f59be6e8 | 751 | NetSetTimeout(bootp_timeout, BootpTimeout); |
3861aa5c | 752 | |
643d1ab2 | 753 | #if defined(CONFIG_CMD_DHCP) |
3861aa5c | 754 | dhcp_state = SELECTING; |
049a95a7 | 755 | net_set_udp_handler(dhcp_handler); |
3861aa5c | 756 | #else |
049a95a7 | 757 | net_set_udp_handler(bootp_handler); |
610f2e9c | 758 | #endif |
3861aa5c WD |
759 | NetSendPacket(NetTxPacket, pktlen); |
760 | } | |
761 | ||
643d1ab2 | 762 | #if defined(CONFIG_CMD_DHCP) |
3090b7e3 | 763 | static void DhcpOptionsProcess(uchar *popt, struct Bootp_t *bp) |
3861aa5c | 764 | { |
3e38691e | 765 | uchar *end = popt + BOOTP_HDR_SIZE; |
3861aa5c | 766 | int oplen, size; |
d8d8724b WD |
767 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
768 | int *to_ptr; | |
769 | #endif | |
3861aa5c | 770 | |
232c150a | 771 | while (popt < end && *popt != 0xff) { |
3861aa5c | 772 | oplen = *(popt + 1); |
232c150a WD |
773 | switch (*popt) { |
774 | case 1: | |
049a95a7 | 775 | net_copy_ip(&net_netmask, (popt + 2)); |
232c150a | 776 | break; |
1fe80d79 | 777 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
ea287deb | 778 | case 2: /* Time offset */ |
d8d8724b | 779 | to_ptr = &NetTimeOffset; |
3090b7e3 JH |
780 | NetCopyLong((ulong *)to_ptr, (ulong *)(popt + 2)); |
781 | NetTimeOffset = ntohl(NetTimeOffset); | |
ea287deb WD |
782 | break; |
783 | #endif | |
232c150a | 784 | case 3: |
049a95a7 | 785 | net_copy_ip(&net_gateway, (popt + 2)); |
232c150a WD |
786 | break; |
787 | case 6: | |
049a95a7 | 788 | net_copy_ip(&net_dns_server, (popt + 2)); |
1fe80d79 | 789 | #if defined(CONFIG_BOOTP_DNS2) |
3090b7e3 | 790 | if (*(popt + 1) > 4) |
049a95a7 | 791 | net_copy_ip(&net_dns_server2, (popt + 2 + 4)); |
fe389a82 | 792 | #endif |
232c150a WD |
793 | break; |
794 | case 12: | |
3090b7e3 JH |
795 | size = truncate_sz("Host Name", |
796 | sizeof(NetOurHostName), oplen); | |
797 | memcpy(&NetOurHostName, popt + 2, size); | |
232c150a WD |
798 | NetOurHostName[size] = 0; |
799 | break; | |
800 | case 15: /* Ignore Domain Name Option */ | |
801 | break; | |
802 | case 17: | |
3090b7e3 JH |
803 | size = truncate_sz("Root Path", |
804 | sizeof(NetOurRootPath), oplen); | |
805 | memcpy(&NetOurRootPath, popt + 2, size); | |
232c150a WD |
806 | NetOurRootPath[size] = 0; |
807 | break; | |
ee0f60df BR |
808 | case 28: /* Ignore Broadcast Address Option */ |
809 | break; | |
1fe80d79 | 810 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
ea287deb | 811 | case 42: /* NTP server IP */ |
049a95a7 | 812 | net_copy_ip(&net_ntp_server, (popt + 2)); |
ea287deb WD |
813 | break; |
814 | #endif | |
232c150a | 815 | case 51: |
3090b7e3 | 816 | NetCopyLong(&dhcp_leasetime, (ulong *) (popt + 2)); |
232c150a WD |
817 | break; |
818 | case 53: /* Ignore Message Type Option */ | |
819 | break; | |
820 | case 54: | |
049a95a7 | 821 | net_copy_ip(&dhcp_server_ip, (popt + 2)); |
232c150a WD |
822 | break; |
823 | case 58: /* Ignore Renewal Time Option */ | |
824 | break; | |
825 | case 59: /* Ignore Rebinding Time Option */ | |
826 | break; | |
3b2e4fd9 WD |
827 | case 66: /* Ignore TFTP server name */ |
828 | break; | |
829 | case 67: /* vendor opt bootfile */ | |
830 | /* | |
831 | * I can't use dhcp_vendorex_proc here because I need | |
832 | * to write into the bootp packet - even then I had to | |
833 | * pass the bootp packet pointer into here as the | |
834 | * second arg | |
835 | */ | |
3090b7e3 | 836 | size = truncate_sz("Opt Boot File", |
3b2e4fd9 WD |
837 | sizeof(bp->bp_file), |
838 | oplen); | |
839 | if (bp->bp_file[0] == '\0' && size > 0) { | |
840 | /* | |
841 | * only use vendor boot file if we didn't | |
842 | * receive a boot file in the main non-vendor | |
843 | * part of the packet - god only knows why | |
844 | * some vendors chose not to use this perfectly | |
845 | * good spot to store the boot file (join on | |
846 | * Tru64 Unix) it seems mind bogglingly crazy | |
847 | * to me | |
848 | */ | |
849 | printf("*** WARNING: using vendor " | |
850 | "optional boot file\n"); | |
851 | memcpy(bp->bp_file, popt + 2, size); | |
852 | bp->bp_file[size] = '\0'; | |
853 | } | |
854 | break; | |
232c150a | 855 | default: |
1fe80d79 | 856 | #if defined(CONFIG_BOOTP_VENDOREX) |
3090b7e3 | 857 | if (dhcp_vendorex_proc(popt)) |
8bde7f77 | 858 | break; |
3861aa5c | 859 | #endif |
3090b7e3 JH |
860 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
861 | " %d\n", *popt); | |
232c150a | 862 | break; |
3861aa5c WD |
863 | } |
864 | popt += oplen + 2; /* Process next option */ | |
865 | } | |
866 | } | |
867 | ||
868 | static int DhcpMessageType(unsigned char *popt) | |
869 | { | |
3090b7e3 | 870 | if (NetReadLong((ulong *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
3861aa5c WD |
871 | return -1; |
872 | ||
873 | popt += 4; | |
3090b7e3 JH |
874 | while (*popt != 0xff) { |
875 | if (*popt == 53) /* DHCP Message Type */ | |
3861aa5c WD |
876 | return *(popt + 2); |
877 | popt += *(popt + 1) + 2; /* Scan through all options */ | |
878 | } | |
879 | return -1; | |
880 | } | |
881 | ||
3090b7e3 | 882 | static void DhcpSendRequestPkt(struct Bootp_t *bp_offer) |
3861aa5c | 883 | { |
db288a96 | 884 | uchar *pkt, *iphdr; |
3090b7e3 | 885 | struct Bootp_t *bp; |
3861aa5c | 886 | int pktlen, iplen, extlen; |
ae446f56 | 887 | int eth_hdr_size; |
049a95a7 JH |
888 | struct in_addr offered_ip; |
889 | struct in_addr zero_ip; | |
890 | struct in_addr bcast_ip; | |
3861aa5c | 891 | |
0ebf04c6 | 892 | debug("DhcpSendRequestPkt: Sending DHCPREQUEST\n"); |
3861aa5c | 893 | pkt = NetTxPacket; |
3090b7e3 | 894 | memset((void *)pkt, 0, PKTSIZE); |
3861aa5c | 895 | |
ae446f56 JH |
896 | eth_hdr_size = NetSetEther(pkt, NetBcastAddr, PROT_IP); |
897 | pkt += eth_hdr_size; | |
3861aa5c | 898 | |
3090b7e3 | 899 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
594c26f8 | 900 | pkt += IP_UDP_HDR_SIZE; |
3861aa5c | 901 | |
3090b7e3 | 902 | bp = (struct Bootp_t *)pkt; |
3861aa5c WD |
903 | bp->bp_op = OP_BOOTREQUEST; |
904 | bp->bp_htype = HWT_ETHER; | |
905 | bp->bp_hlen = HWL_ETHER; | |
906 | bp->bp_hops = 0; | |
49f3bdbb | 907 | bp->bp_secs = htons(get_timer(0) / 1000); |
3090b7e3 JH |
908 | /* Do not set the client IP, your IP, or server IP yet, since it |
909 | * hasn't been ACK'ed by the server yet */ | |
e5c794e4 | 910 | |
c6686703 | 911 | /* |
d82718fe WD |
912 | * RFC3046 requires Relay Agents to discard packets with |
913 | * nonzero and offered giaddr | |
914 | */ | |
049a95a7 JH |
915 | zero_ip.s_addr = 0; |
916 | net_write_ip(&bp->bp_giaddr, zero_ip); | |
d82718fe | 917 | |
3090b7e3 | 918 | memcpy(bp->bp_chaddr, NetOurEther, 6); |
3861aa5c WD |
919 | |
920 | /* | |
921 | * ID is the id of the OFFER packet | |
922 | */ | |
923 | ||
924 | NetCopyLong(&bp->bp_id, &bp_offer->bp_id); | |
925 | ||
926 | /* | |
927 | * Copy options from OFFER packet if present | |
928 | */ | |
e5c794e4 JF |
929 | |
930 | /* Copy offered IP into the parameters request list */ | |
049a95a7 JH |
931 | net_copy_ip(&offered_ip, &bp_offer->bp_yiaddr); |
932 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_REQUEST, | |
933 | dhcp_server_ip, offered_ip); | |
3861aa5c | 934 | |
ae446f56 JH |
935 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
936 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; | |
049a95a7 JH |
937 | bcast_ip.s_addr = 0xFFFFFFFFL; |
938 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); | |
3861aa5c | 939 | |
d9a2f416 AV |
940 | #ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY |
941 | udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY); | |
942 | #endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */ | |
f9623229 | 943 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
3861aa5c WD |
944 | NetSendPacket(NetTxPacket, pktlen); |
945 | } | |
946 | ||
947 | /* | |
948 | * Handle DHCP received packets. | |
949 | */ | |
049a95a7 JH |
950 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
951 | unsigned src, unsigned len) | |
3861aa5c | 952 | { |
3090b7e3 | 953 | struct Bootp_t *bp = (struct Bootp_t *)pkt; |
3861aa5c | 954 | |
0ebf04c6 | 955 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
3861aa5c WD |
956 | src, dest, len, dhcp_state); |
957 | ||
3090b7e3 JH |
958 | /* Filter out pkts we don't want */ |
959 | if (BootpCheckPkt(pkt, dest, src, len)) | |
3861aa5c WD |
960 | return; |
961 | ||
3090b7e3 JH |
962 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state:" |
963 | " %d\n", src, dest, len, dhcp_state); | |
3861aa5c WD |
964 | |
965 | switch (dhcp_state) { | |
966 | case SELECTING: | |
967 | /* | |
968 | * Wait an appropriate time for any potential DHCPOFFER packets | |
3090b7e3 JH |
969 | * to arrive. Then select one, and generate DHCPREQUEST |
970 | * response. If filename is in format we recognize, assume it | |
971 | * is a valid OFFER from a server we want. | |
3861aa5c | 972 | */ |
0ebf04c6 | 973 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
6d0f6bcf | 974 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 975 | if (strncmp(bp->bp_file, |
6d0f6bcf | 976 | CONFIG_SYS_BOOTFILE_PREFIX, |
3090b7e3 | 977 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
6d0f6bcf | 978 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c | 979 | |
0ebf04c6 | 980 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
3861aa5c | 981 | dhcp_state = REQUESTING; |
759a51b4 | 982 | |
3090b7e3 JH |
983 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == |
984 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 985 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3861aa5c | 986 | |
f59be6e8 | 987 | NetSetTimeout(5000, BootpTimeout); |
3861aa5c | 988 | DhcpSendRequestPkt(bp); |
6d0f6bcf | 989 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
3861aa5c | 990 | } |
6d0f6bcf | 991 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
3861aa5c WD |
992 | |
993 | return; | |
994 | break; | |
995 | case REQUESTING: | |
0ebf04c6 | 996 | debug("DHCP State: REQUESTING\n"); |
3861aa5c | 997 | |
3090b7e3 JH |
998 | if (DhcpMessageType((u8 *)bp->bp_vend) == DHCP_ACK) { |
999 | if (NetReadLong((ulong *)&bp->bp_vend[0]) == | |
1000 | htonl(BOOTP_VENDOR_MAGIC)) | |
3b2e4fd9 | 1001 | DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp); |
3090b7e3 JH |
1002 | /* Store net params from reply */ |
1003 | BootpCopyNetParams(bp); | |
3861aa5c | 1004 | dhcp_state = BOUND; |
92ac8acc | 1005 | printf("DHCP client bound to address %pI4 (%lu ms)\n", |
049a95a7 | 1006 | &net_ip, get_timer(bootp_start)); |
573f14fe | 1007 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
3090b7e3 | 1008 | "bootp_stop"); |
3861aa5c | 1009 | |
e4a3d57d | 1010 | net_auto_load(); |
3861aa5c WD |
1011 | return; |
1012 | } | |
1013 | break; | |
51dfe138 RB |
1014 | case BOUND: |
1015 | /* DHCP client bound to address */ | |
1016 | break; | |
3861aa5c | 1017 | default: |
3090b7e3 | 1018 | puts("DHCP: INVALID STATE\n"); |
3861aa5c WD |
1019 | break; |
1020 | } | |
1021 | ||
1022 | } | |
1023 | ||
1024 | void DhcpRequest(void) | |
1025 | { | |
1026 | BootpRequest(); | |
1027 | } | |
992742a5 | 1028 | #endif /* CONFIG_CMD_DHCP */ |