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wdenk3861aa52002-09-27 23:19:37 +00001/*
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
wdenk232c1502004-03-12 00:14:09 +00008 * Copyright 2000-2004 Wolfgang Denk, wd@denx.de
wdenk3861aa52002-09-27 23:19:37 +00009 */
10
wdenk3861aa52002-09-27 23:19:37 +000011#include <common.h>
12#include <command.h>
13#include <net.h>
Lukasz Majewski34696952015-08-24 00:21:43 +020014#include <net/tftp.h>
wdenk3861aa52002-09-27 23:19:37 +000015#include "bootp.h"
wdenk232c1502004-03-12 00:14:09 +000016#include "nfs.h"
wdenk3861aa52002-09-27 23:19:37 +000017#ifdef CONFIG_STATUS_LED
18#include <status_led.h>
19#endif
Kim Phillipsdb7720b2012-07-05 13:19:32 +000020#ifdef CONFIG_BOOTP_RANDOM_DELAY
21#include "net_rand.h"
22#endif
wdenk3861aa52002-09-27 23:19:37 +000023
Joe Hershberger3090b7e32012-05-15 08:59:06 +000024#define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */
wdenk3861aa52002-09-27 23:19:37 +000025
Stephen Warrenf59be6e2014-07-25 17:30:48 -060026/*
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 */
wdenk232c1502004-03-12 00:14:09 +000036#ifndef CONFIG_NET_RETRY_COUNT
Joe Hershberger3090b7e32012-05-15 08:59:06 +000037# define TIMEOUT_COUNT 5 /* # of timeouts before giving up */
wdenk3861aa52002-09-27 23:19:37 +000038#else
wdenk232c1502004-03-12 00:14:09 +000039# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT)
wdenk3861aa52002-09-27 23:19:37 +000040#endif
Stephen Warrenf59be6e2014-07-25 17:30:48 -060041#define TIMEOUT_MS ((3 + (TIMEOUT_COUNT * 5)) * 1000)
wdenk3861aa52002-09-27 23:19:37 +000042
Joe Hershberger3090b7e32012-05-15 08:59:06 +000043#define PORT_BOOTPS 67 /* BOOTP server UDP port */
44#define PORT_BOOTPC 68 /* BOOTP client UDP port */
wdenk3861aa52002-09-27 23:19:37 +000045
Joe Hershberger3090b7e32012-05-15 08:59:06 +000046#ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */
wdenk232c1502004-03-12 00:14:09 +000047#define CONFIG_DHCP_MIN_EXT_LEN 64
wdenk3861aa52002-09-27 23:19:37 +000048#endif
49
Thierry Reding92ac8ac2014-08-19 10:21:24 +020050#ifndef CONFIG_BOOTP_ID_CACHE_SIZE
51#define CONFIG_BOOTP_ID_CACHE_SIZE 4
52#endif
53
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -050054u32 bootp_ids[CONFIG_BOOTP_ID_CACHE_SIZE];
Thierry Reding92ac8ac2014-08-19 10:21:24 +020055unsigned int bootp_num_ids;
Joe Hershberger7044c6b2015-04-08 01:41:09 -050056int bootp_try;
Stephen Warrenf59be6e2014-07-25 17:30:48 -060057ulong bootp_start;
58ulong bootp_timeout;
Joe Hershberger586cbe52015-04-08 01:41:03 -050059char net_nis_domain[32] = {0,}; /* Our NIS domain */
60char net_hostname[32] = {0,}; /* Our hostname */
61char net_root_path[64] = {0,}; /* Our bootpath */
wdenk3861aa52002-09-27 23:19:37 +000062
Jon Loeliger643d1ab2007-07-09 17:45:14 -050063#if defined(CONFIG_CMD_DHCP)
Kim Phillips06370592012-10-29 13:34:33 +000064static dhcp_state_t dhcp_state = INIT;
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -050065static u32 dhcp_leasetime;
Joe Hershberger049a95a2015-04-08 01:41:01 -050066static struct in_addr dhcp_server_ip;
67static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
68 unsigned src, unsigned len);
wdenk3861aa52002-09-27 23:19:37 +000069
70/* For Debug */
wdenk3e386912003-04-05 00:53:31 +000071#if 0
72static char *dhcpmsg2str(int type)
wdenk3861aa52002-09-27 23:19:37 +000073{
74 switch (type) {
wdenk232c1502004-03-12 00:14:09 +000075 case 1: return "DHCPDISCOVER"; break;
76 case 2: return "DHCPOFFER"; break;
77 case 3: return "DHCPREQUEST"; break;
78 case 4: return "DHCPDECLINE"; break;
79 case 5: return "DHCPACK"; break;
80 case 6: return "DHCPNACK"; break;
81 case 7: return "DHCPRELEASE"; break;
wdenk3861aa52002-09-27 23:19:37 +000082 default: return "UNKNOWN/INVALID MSG TYPE"; break;
83 }
84}
wdenk3e386912003-04-05 00:53:31 +000085#endif
Jon Loeliger610f2e92007-07-10 11:05:02 -050086#endif
wdenk3861aa52002-09-27 23:19:37 +000087
Thierry Reding92ac8ac2014-08-19 10:21:24 +020088static void bootp_add_id(ulong id)
89{
90 if (bootp_num_ids >= ARRAY_SIZE(bootp_ids)) {
91 size_t size = sizeof(bootp_ids) - sizeof(id);
92
93 memmove(bootp_ids, &bootp_ids[1], size);
94 bootp_ids[bootp_num_ids - 1] = id;
95 } else {
96 bootp_ids[bootp_num_ids] = id;
97 bootp_num_ids++;
98 }
99}
100
101static bool bootp_match_id(ulong id)
102{
103 unsigned int i;
104
105 for (i = 0; i < bootp_num_ids; i++)
106 if (bootp_ids[i] == id)
107 return true;
108
109 return false;
110}
111
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500112static int check_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len)
wdenk3861aa52002-09-27 23:19:37 +0000113{
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500114 struct bootp_hdr *bp = (struct bootp_hdr *)pkt;
wdenk3861aa52002-09-27 23:19:37 +0000115 int retval = 0;
116
117 if (dest != PORT_BOOTPC || src != PORT_BOOTPS)
118 retval = -1;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500119 else if (len < sizeof(struct bootp_hdr) - OPT_FIELD_SIZE)
wdenk3861aa52002-09-27 23:19:37 +0000120 retval = -2;
121 else if (bp->bp_op != OP_BOOTREQUEST &&
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000122 bp->bp_op != OP_BOOTREPLY &&
123 bp->bp_op != DHCP_OFFER &&
124 bp->bp_op != DHCP_ACK &&
125 bp->bp_op != DHCP_NAK)
wdenk3861aa52002-09-27 23:19:37 +0000126 retval = -3;
wdenk3861aa52002-09-27 23:19:37 +0000127 else if (bp->bp_htype != HWT_ETHER)
128 retval = -4;
129 else if (bp->bp_hlen != HWL_ETHER)
130 retval = -5;
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500131 else if (!bootp_match_id(net_read_u32(&bp->bp_id)))
wdenk3861aa52002-09-27 23:19:37 +0000132 retval = -6;
wdenk3861aa52002-09-27 23:19:37 +0000133
Robin Getz0ebf04c2009-07-23 03:01:03 -0400134 debug("Filtering pkt = %d\n", retval);
wdenk3861aa52002-09-27 23:19:37 +0000135
136 return retval;
137}
138
139/*
140 * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet
141 */
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500142static void store_net_params(struct bootp_hdr *bp)
wdenk3861aa52002-09-27 23:19:37 +0000143{
Wilson Callan5d110f02007-07-28 10:56:13 -0400144#if !defined(CONFIG_BOOTP_SERVERIP)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500145 struct in_addr tmp_ip;
Joe Hershberger1752f0f2012-05-23 07:59:18 +0000146
Joe Hershberger049a95a2015-04-08 01:41:01 -0500147 net_copy_ip(&tmp_ip, &bp->bp_siaddr);
148 if (tmp_ip.s_addr != 0)
149 net_copy_ip(&net_server_ip, &bp->bp_siaddr);
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500150 memcpy(net_server_ethaddr,
151 ((struct ethernet_hdr *)net_rx_packet)->et_src, 6);
wdenk3d3befa2004-03-14 15:06:13 +0000152 if (strlen(bp->bp_file) > 0)
Joe Hershberger14111572015-04-08 01:41:02 -0500153 copy_filename(net_boot_file_name, bp->bp_file,
154 sizeof(net_boot_file_name));
wdenk3861aa52002-09-27 23:19:37 +0000155
Joe Hershberger14111572015-04-08 01:41:02 -0500156 debug("net_boot_file_name: %s\n", net_boot_file_name);
wdenk3861aa52002-09-27 23:19:37 +0000157
158 /* Propagate to environment:
wdenk8bde7f72003-06-27 21:31:46 +0000159 * don't delete exising entry when BOOTP / DHCP reply does
wdenk3861aa52002-09-27 23:19:37 +0000160 * not contain a new value
161 */
Joe Hershberger14111572015-04-08 01:41:02 -0500162 if (*net_boot_file_name)
163 setenv("bootfile", net_boot_file_name);
Wu, Joshecec4e92014-11-18 13:07:08 +0800164#endif
Joe Hershberger049a95a2015-04-08 01:41:01 -0500165 net_copy_ip(&net_ip, &bp->bp_yiaddr);
wdenk3861aa52002-09-27 23:19:37 +0000166}
167
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000168static int truncate_sz(const char *name, int maxlen, int curlen)
wdenk3861aa52002-09-27 23:19:37 +0000169{
170 if (curlen >= maxlen) {
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000171 printf("*** WARNING: %s is too long (%d - max: %d)"
172 " - truncated\n", name, curlen, maxlen);
wdenk3861aa52002-09-27 23:19:37 +0000173 curlen = maxlen - 1;
174 }
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000175 return curlen;
wdenk3861aa52002-09-27 23:19:37 +0000176}
177
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500178#if !defined(CONFIG_CMD_DHCP)
wdenk3861aa52002-09-27 23:19:37 +0000179
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500180static void bootp_process_vendor_field(u8 *ext)
wdenk3861aa52002-09-27 23:19:37 +0000181{
wdenk232c1502004-03-12 00:14:09 +0000182 int size = *(ext + 1);
wdenk3861aa52002-09-27 23:19:37 +0000183
Robin Getz0ebf04c2009-07-23 03:01:03 -0400184 debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext,
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500185 *(ext + 1));
wdenk3861aa52002-09-27 23:19:37 +0000186
Joe Hershberger14111572015-04-08 01:41:02 -0500187 net_boot_file_expected_size_in_blocks = 0;
wdenk3861aa52002-09-27 23:19:37 +0000188
wdenk232c1502004-03-12 00:14:09 +0000189 switch (*ext) {
190 /* Fixed length fields */
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000191 case 1: /* Subnet mask */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500192 if (net_netmask.s_addr == 0)
193 net_copy_ip(&net_netmask, (struct in_addr *)(ext + 2));
wdenk3861aa52002-09-27 23:19:37 +0000194 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000195 case 2: /* Time offset - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000196 break;
wdenk232c1502004-03-12 00:14:09 +0000197 /* Variable length fields */
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000198 case 3: /* Gateways list */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500199 if (net_gateway.s_addr == 0)
200 net_copy_ip(&net_gateway, (struct in_addr *)(ext + 2));
wdenk3861aa52002-09-27 23:19:37 +0000201 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000202 case 4: /* Time server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000203 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000204 case 5: /* IEN-116 name server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000205 break;
206 case 6:
Joe Hershberger049a95a2015-04-08 01:41:01 -0500207 if (net_dns_server.s_addr == 0)
208 net_copy_ip(&net_dns_server,
209 (struct in_addr *)(ext + 2));
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500210#if defined(CONFIG_BOOTP_DNS2)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500211 if ((net_dns_server2.s_addr == 0) && (size > 4))
212 net_copy_ip(&net_dns_server2,
213 (struct in_addr *)(ext + 2 + 4));
stroesefe389a82003-08-28 14:17:32 +0000214#endif
wdenk3861aa52002-09-27 23:19:37 +0000215 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000216 case 7: /* Log server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000217 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000218 case 8: /* Cookie/Quote server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000219 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000220 case 9: /* LPR server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000221 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000222 case 10: /* Impress server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000223 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000224 case 11: /* RPL server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000225 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000226 case 12: /* Host name */
Joe Hershberger586cbe52015-04-08 01:41:03 -0500227 if (net_hostname[0] == 0) {
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000228 size = truncate_sz("Host Name",
Joe Hershberger586cbe52015-04-08 01:41:03 -0500229 sizeof(net_hostname), size);
230 memcpy(&net_hostname, ext + 2, size);
231 net_hostname[size] = 0;
wdenk3861aa52002-09-27 23:19:37 +0000232 }
233 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000234 case 13: /* Boot file size */
wdenk3861aa52002-09-27 23:19:37 +0000235 if (size == 2)
Joe Hershberger14111572015-04-08 01:41:02 -0500236 net_boot_file_expected_size_in_blocks =
237 ntohs(*(ushort *)(ext + 2));
wdenk3861aa52002-09-27 23:19:37 +0000238 else if (size == 4)
Joe Hershberger14111572015-04-08 01:41:02 -0500239 net_boot_file_expected_size_in_blocks =
240 ntohl(*(ulong *)(ext + 2));
wdenk3861aa52002-09-27 23:19:37 +0000241 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000242 case 14: /* Merit dump file - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000243 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000244 case 15: /* Domain name - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000245 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000246 case 16: /* Swap server - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000247 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000248 case 17: /* Root path */
Joe Hershberger586cbe52015-04-08 01:41:03 -0500249 if (net_root_path[0] == 0) {
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000250 size = truncate_sz("Root Path",
Joe Hershberger586cbe52015-04-08 01:41:03 -0500251 sizeof(net_root_path), size);
252 memcpy(&net_root_path, ext + 2, size);
253 net_root_path[size] = 0;
wdenk3861aa52002-09-27 23:19:37 +0000254 }
255 break;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000256 case 18: /* Extension path - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000257 /*
wdenk8bde7f72003-06-27 21:31:46 +0000258 * This can be used to send the information of the
259 * vendor area in another file that the client can
260 * access via TFTP.
wdenk3861aa52002-09-27 23:19:37 +0000261 */
262 break;
wdenk232c1502004-03-12 00:14:09 +0000263 /* IP host layer fields */
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000264 case 40: /* NIS Domain name */
Joe Hershberger586cbe52015-04-08 01:41:03 -0500265 if (net_nis_domain[0] == 0) {
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000266 size = truncate_sz("NIS Domain Name",
Joe Hershberger586cbe52015-04-08 01:41:03 -0500267 sizeof(net_nis_domain), size);
268 memcpy(&net_nis_domain, ext + 2, size);
269 net_nis_domain[size] = 0;
wdenk3861aa52002-09-27 23:19:37 +0000270 }
271 break;
Luuk Paulussen09e3a672011-05-16 18:29:19 +0000272#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
273 case 42: /* NTP server IP */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500274 net_copy_ip(&net_ntp_server, (struct in_addr *)(ext + 2));
Luuk Paulussen09e3a672011-05-16 18:29:19 +0000275 break;
276#endif
wdenk232c1502004-03-12 00:14:09 +0000277 /* Application layer fields */
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000278 case 43: /* Vendor specific info - Not yet supported */
wdenk3861aa52002-09-27 23:19:37 +0000279 /*
wdenk8bde7f72003-06-27 21:31:46 +0000280 * Binary information to exchange specific
281 * product information.
wdenk3861aa52002-09-27 23:19:37 +0000282 */
283 break;
wdenk232c1502004-03-12 00:14:09 +0000284 /* Reserved (custom) fields (128..254) */
285 }
wdenk3861aa52002-09-27 23:19:37 +0000286}
287
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500288static void bootp_process_vendor(u8 *ext, int size)
wdenk3861aa52002-09-27 23:19:37 +0000289{
wdenk232c1502004-03-12 00:14:09 +0000290 u8 *end = ext + size;
wdenk3861aa52002-09-27 23:19:37 +0000291
Robin Getz0ebf04c2009-07-23 03:01:03 -0400292 debug("[BOOTP] Checking extension (%d bytes)...\n", size);
wdenk3861aa52002-09-27 23:19:37 +0000293
wdenk232c1502004-03-12 00:14:09 +0000294 while ((ext < end) && (*ext != 0xff)) {
295 if (*ext == 0) {
296 ext++;
297 } else {
298 u8 *opt = ext;
299
300 ext += ext[1] + 2;
301 if (ext <= end)
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500302 bootp_process_vendor_field(opt);
wdenk232c1502004-03-12 00:14:09 +0000303 }
wdenk3861aa52002-09-27 23:19:37 +0000304 }
wdenk3861aa52002-09-27 23:19:37 +0000305
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000306 debug("[BOOTP] Received fields:\n");
Joe Hershberger049a95a2015-04-08 01:41:01 -0500307 if (net_netmask.s_addr)
308 debug("net_netmask : %pI4\n", &net_netmask);
wdenk3861aa52002-09-27 23:19:37 +0000309
Joe Hershberger049a95a2015-04-08 01:41:01 -0500310 if (net_gateway.s_addr)
311 debug("net_gateway : %pI4", &net_gateway);
wdenk3861aa52002-09-27 23:19:37 +0000312
Joe Hershberger14111572015-04-08 01:41:02 -0500313 if (net_boot_file_expected_size_in_blocks)
314 debug("net_boot_file_expected_size_in_blocks : %d\n",
315 net_boot_file_expected_size_in_blocks);
wdenk3861aa52002-09-27 23:19:37 +0000316
Joe Hershberger586cbe52015-04-08 01:41:03 -0500317 if (net_hostname[0])
318 debug("net_hostname : %s\n", net_hostname);
wdenk3861aa52002-09-27 23:19:37 +0000319
Joe Hershberger586cbe52015-04-08 01:41:03 -0500320 if (net_root_path[0])
321 debug("net_root_path : %s\n", net_root_path);
wdenk3861aa52002-09-27 23:19:37 +0000322
Joe Hershberger586cbe52015-04-08 01:41:03 -0500323 if (net_nis_domain[0])
324 debug("net_nis_domain : %s\n", net_nis_domain);
wdenk3861aa52002-09-27 23:19:37 +0000325
Luuk Paulussen09e3a672011-05-16 18:29:19 +0000326#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500327 if (net_ntp_server)
328 debug("net_ntp_server : %pI4\n", &net_ntp_server);
Luuk Paulussen09e3a672011-05-16 18:29:19 +0000329#endif
wdenk3861aa52002-09-27 23:19:37 +0000330}
Simon Glass09349862011-06-13 16:13:12 -0700331
wdenk3861aa52002-09-27 23:19:37 +0000332/*
333 * Handle a BOOTP received packet.
334 */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500335static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
336 unsigned src, unsigned len)
wdenk3861aa52002-09-27 23:19:37 +0000337{
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500338 struct bootp_hdr *bp;
wdenk3861aa52002-09-27 23:19:37 +0000339
Robin Getz0ebf04c2009-07-23 03:01:03 -0400340 debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n",
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500341 src, dest, len, sizeof(struct bootp_hdr));
wdenk3861aa52002-09-27 23:19:37 +0000342
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500343 bp = (struct bootp_hdr *)pkt;
wdenk3861aa52002-09-27 23:19:37 +0000344
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000345 /* Filter out pkts we don't want */
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500346 if (check_packet(pkt, dest, src, len))
wdenk3861aa52002-09-27 23:19:37 +0000347 return;
348
349 /*
wdenk232c1502004-03-12 00:14:09 +0000350 * Got a good BOOTP reply. Copy the data into our variables.
wdenk3861aa52002-09-27 23:19:37 +0000351 */
352#ifdef CONFIG_STATUS_LED
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000353 status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
wdenk3861aa52002-09-27 23:19:37 +0000354#endif
355
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500356 store_net_params(bp); /* Store net parameters from reply */
wdenk3861aa52002-09-27 23:19:37 +0000357
358 /* Retrieve extended information (we must parse the vendor area) */
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500359 if (net_read_u32((u32 *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500360 bootp_process_vendor((uchar *)&bp->bp_vend[4], len);
wdenk3861aa52002-09-27 23:19:37 +0000361
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500362 net_set_timeout_handler(0, (thand_f *)0);
Simon Glass573f14f2011-12-10 11:08:06 +0000363 bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop");
wdenk3861aa52002-09-27 23:19:37 +0000364
Robin Getz0ebf04c2009-07-23 03:01:03 -0400365 debug("Got good BOOTP\n");
wdenk3861aa52002-09-27 23:19:37 +0000366
Simon Glasse4a3d572011-10-27 06:24:32 +0000367 net_auto_load();
wdenk3861aa52002-09-27 23:19:37 +0000368}
Jon Loeliger610f2e92007-07-10 11:05:02 -0500369#endif
wdenk3861aa52002-09-27 23:19:37 +0000370
371/*
372 * Timeout on BOOTP/DHCP request.
373 */
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500374static void bootp_timeout_handler(void)
wdenk3861aa52002-09-27 23:19:37 +0000375{
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600376 ulong time_taken = get_timer(bootp_start);
377
378 if (time_taken >= TIMEOUT_MS) {
Joe Hershberger2c00e092012-05-23 07:59:19 +0000379#ifdef CONFIG_BOOTP_MAY_FAIL
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600380 puts("\nRetry time exceeded\n");
benoit.thebaudeau@advansb977aa82012-07-19 01:23:21 +0000381 net_set_state(NETLOOP_FAIL);
Joe Hershberger2c00e092012-05-23 07:59:19 +0000382#else
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600383 puts("\nRetry time exceeded; starting again\n");
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500384 net_start_again();
Joe Hershberger2c00e092012-05-23 07:59:19 +0000385#endif
wdenk3861aa52002-09-27 23:19:37 +0000386 } else {
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600387 bootp_timeout *= 2;
Thierry Reding92ac8ac2014-08-19 10:21:24 +0200388 if (bootp_timeout > 2000)
389 bootp_timeout = 2000;
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500390 net_set_timeout_handler(bootp_timeout, bootp_timeout_handler);
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500391 bootp_request();
wdenk3861aa52002-09-27 23:19:37 +0000392 }
393}
394
Ilya Yanok9ace17c2012-09-17 10:26:25 +0000395#define put_vci(e, str) \
396 do { \
397 size_t vci_strlen = strlen(str); \
398 *e++ = 60; /* Vendor Class Identifier */ \
399 *e++ = vci_strlen; \
400 memcpy(e, str, vci_strlen); \
401 e += vci_strlen; \
402 } while (0)
403
wdenk3861aa52002-09-27 23:19:37 +0000404/*
405 * Initialize BOOTP extension fields in the request.
406 */
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500407#if defined(CONFIG_CMD_DHCP)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500408static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
409 struct in_addr requested_ip)
wdenk3861aa52002-09-27 23:19:37 +0000410{
wdenk232c1502004-03-12 00:14:09 +0000411 u8 *start = e;
412 u8 *cnt;
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000413#if defined(CONFIG_BOOTP_PXE)
414 char *uuid;
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000415 u16 clientarch;
416#endif
wdenk232c1502004-03-12 00:14:09 +0000417
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500418#if defined(CONFIG_BOOTP_VENDOREX)
wdenk232c1502004-03-12 00:14:09 +0000419 u8 *x;
wdenk3861aa52002-09-27 23:19:37 +0000420#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500421#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200422 char *hostname;
stroesefe389a82003-08-28 14:17:32 +0000423#endif
wdenk3861aa52002-09-27 23:19:37 +0000424
wdenk232c1502004-03-12 00:14:09 +0000425 *e++ = 99; /* RFC1048 Magic Cookie */
426 *e++ = 130;
427 *e++ = 83;
428 *e++ = 99;
wdenk3861aa52002-09-27 23:19:37 +0000429
wdenk232c1502004-03-12 00:14:09 +0000430 *e++ = 53; /* DHCP Message Type */
431 *e++ = 1;
432 *e++ = message_type;
wdenk3861aa52002-09-27 23:19:37 +0000433
wdenk232c1502004-03-12 00:14:09 +0000434 *e++ = 57; /* Maximum DHCP Message Size */
435 *e++ = 2;
Joe Hershbergerf8315732012-05-23 07:58:14 +0000436 *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8;
437 *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
wdenk3861aa52002-09-27 23:19:37 +0000438
Joe Hershberger049a95a2015-04-08 01:41:01 -0500439 if (server_ip.s_addr) {
440 int tmp = ntohl(server_ip.s_addr);
wdenk3861aa52002-09-27 23:19:37 +0000441
wdenk232c1502004-03-12 00:14:09 +0000442 *e++ = 54; /* ServerID */
443 *e++ = 4;
444 *e++ = tmp >> 24;
445 *e++ = tmp >> 16;
446 *e++ = tmp >> 8;
447 *e++ = tmp & 0xff;
448 }
wdenk3861aa52002-09-27 23:19:37 +0000449
Joe Hershberger049a95a2015-04-08 01:41:01 -0500450 if (requested_ip.s_addr) {
451 int tmp = ntohl(requested_ip.s_addr);
wdenk3861aa52002-09-27 23:19:37 +0000452
wdenk232c1502004-03-12 00:14:09 +0000453 *e++ = 50; /* Requested IP */
454 *e++ = 4;
455 *e++ = tmp >> 24;
456 *e++ = tmp >> 16;
457 *e++ = tmp >> 8;
458 *e++ = tmp & 0xff;
459 }
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500460#if defined(CONFIG_BOOTP_SEND_HOSTNAME)
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000461 hostname = getenv("hostname");
462 if (hostname) {
463 int hostnamelen = strlen(hostname);
wdenk232c1502004-03-12 00:14:09 +0000464
465 *e++ = 12; /* Hostname */
466 *e++ = hostnamelen;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000467 memcpy(e, hostname, hostnamelen);
wdenk232c1502004-03-12 00:14:09 +0000468 e += hostnamelen;
469 }
stroesefe389a82003-08-28 14:17:32 +0000470#endif
471
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000472#if defined(CONFIG_BOOTP_PXE)
473 clientarch = CONFIG_BOOTP_PXE_CLIENTARCH;
474 *e++ = 93; /* Client System Architecture */
475 *e++ = 2;
476 *e++ = (clientarch >> 8) & 0xff;
477 *e++ = clientarch & 0xff;
478
479 *e++ = 94; /* Client Network Interface Identifier */
480 *e++ = 3;
481 *e++ = 1; /* type field for UNDI */
482 *e++ = 0; /* major revision */
483 *e++ = 0; /* minor revision */
484
485 uuid = getenv("pxeuuid");
486
487 if (uuid) {
488 if (uuid_str_valid(uuid)) {
489 *e++ = 97; /* Client Machine Identifier */
490 *e++ = 17;
491 *e++ = 0; /* type 0 - UUID */
492
Przemyslaw Marczakd718ded2014-04-02 10:20:03 +0200493 uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD);
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000494 e += 16;
495 } else {
496 printf("Invalid pxeuuid: %s\n", uuid);
497 }
498 }
Ilya Yanok9ace17c2012-09-17 10:26:25 +0000499#endif
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000500
Ilya Yanok9ace17c2012-09-17 10:26:25 +0000501#ifdef CONFIG_BOOTP_VCI_STRING
502 put_vci(e, CONFIG_BOOTP_VCI_STRING);
Jason Hobbsd2b5d5c2011-08-31 05:37:31 +0000503#endif
504
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500505#if defined(CONFIG_BOOTP_VENDOREX)
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000506 x = dhcp_vendorex_prep(e);
507 if (x)
wdenk232c1502004-03-12 00:14:09 +0000508 return x - start;
wdenk3861aa52002-09-27 23:19:37 +0000509#endif
510
wdenk232c1502004-03-12 00:14:09 +0000511 *e++ = 55; /* Parameter Request List */
512 cnt = e++; /* Pointer to count of requested items */
513 *cnt = 0;
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500514#if defined(CONFIG_BOOTP_SUBNETMASK)
wdenk232c1502004-03-12 00:14:09 +0000515 *e++ = 1; /* Subnet Mask */
516 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000517#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500518#if defined(CONFIG_BOOTP_TIMEOFFSET)
wdenkea287de2005-04-01 00:25:43 +0000519 *e++ = 2;
520 *cnt += 1;
521#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500522#if defined(CONFIG_BOOTP_GATEWAY)
wdenk232c1502004-03-12 00:14:09 +0000523 *e++ = 3; /* Router Option */
524 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000525#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500526#if defined(CONFIG_BOOTP_DNS)
wdenk232c1502004-03-12 00:14:09 +0000527 *e++ = 6; /* DNS Server(s) */
528 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000529#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500530#if defined(CONFIG_BOOTP_HOSTNAME)
wdenk232c1502004-03-12 00:14:09 +0000531 *e++ = 12; /* Hostname */
532 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000533#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500534#if defined(CONFIG_BOOTP_BOOTFILESIZE)
wdenk232c1502004-03-12 00:14:09 +0000535 *e++ = 13; /* Boot File Size */
536 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000537#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500538#if defined(CONFIG_BOOTP_BOOTPATH)
wdenk232c1502004-03-12 00:14:09 +0000539 *e++ = 17; /* Boot path */
540 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000541#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500542#if defined(CONFIG_BOOTP_NISDOMAIN)
wdenk232c1502004-03-12 00:14:09 +0000543 *e++ = 40; /* NIS Domain name request */
544 *cnt += 1;
wdenk3861aa52002-09-27 23:19:37 +0000545#endif
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500546#if defined(CONFIG_BOOTP_NTPSERVER)
wdenkea287de2005-04-01 00:25:43 +0000547 *e++ = 42;
548 *cnt += 1;
549#endif
Jason Liu258ccd62010-11-14 12:23:09 +0800550 /* no options, so back up to avoid sending an empty request list */
551 if (*cnt == 0)
552 e -= 2;
553
wdenk232c1502004-03-12 00:14:09 +0000554 *e++ = 255; /* End of the list */
wdenk3861aa52002-09-27 23:19:37 +0000555
wdenk232c1502004-03-12 00:14:09 +0000556 /* Pad to minimal length */
wdenk3861aa52002-09-27 23:19:37 +0000557#ifdef CONFIG_DHCP_MIN_EXT_LEN
Simon Glass21076f62011-02-02 15:03:28 -0800558 while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN)
wdenk232c1502004-03-12 00:14:09 +0000559 *e++ = 0;
wdenk3861aa52002-09-27 23:19:37 +0000560#endif
561
wdenk232c1502004-03-12 00:14:09 +0000562 return e - start;
wdenk3861aa52002-09-27 23:19:37 +0000563}
564
Jon Loeliger610f2e92007-07-10 11:05:02 -0500565#else
wdenk3861aa52002-09-27 23:19:37 +0000566/*
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000567 * Warning: no field size check - change CONFIG_BOOTP_* at your own risk!
wdenk3861aa52002-09-27 23:19:37 +0000568 */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500569static int bootp_extended(u8 *e)
wdenk3861aa52002-09-27 23:19:37 +0000570{
wdenk232c1502004-03-12 00:14:09 +0000571 u8 *start = e;
wdenk3861aa52002-09-27 23:19:37 +0000572
wdenk232c1502004-03-12 00:14:09 +0000573 *e++ = 99; /* RFC1048 Magic Cookie */
574 *e++ = 130;
575 *e++ = 83;
576 *e++ = 99;
wdenk3861aa52002-09-27 23:19:37 +0000577
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500578#if defined(CONFIG_CMD_DHCP)
wdenk232c1502004-03-12 00:14:09 +0000579 *e++ = 53; /* DHCP Message Type */
580 *e++ = 1;
581 *e++ = DHCP_DISCOVER;
wdenk3861aa52002-09-27 23:19:37 +0000582
wdenk232c1502004-03-12 00:14:09 +0000583 *e++ = 57; /* Maximum DHCP Message Size */
584 *e++ = 2;
Joe Hershbergerf8315732012-05-23 07:58:14 +0000585 *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16;
586 *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
Jon Loeliger610f2e92007-07-10 11:05:02 -0500587#endif
wdenk3861aa52002-09-27 23:19:37 +0000588
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000589#if defined(CONFIG_BOOTP_VCI_STRING) || \
590 (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING))
591#ifdef CONFIG_SPL_BUILD
592 put_vci(e, CONFIG_SPL_NET_VCI_STRING);
593#else
Ilya Yanok9ace17c2012-09-17 10:26:25 +0000594 put_vci(e, CONFIG_BOOTP_VCI_STRING);
595#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000596#endif
Ilya Yanok9ace17c2012-09-17 10:26:25 +0000597
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500598#if defined(CONFIG_BOOTP_SUBNETMASK)
wdenk232c1502004-03-12 00:14:09 +0000599 *e++ = 1; /* Subnet mask request */
600 *e++ = 4;
601 e += 4;
wdenk3861aa52002-09-27 23:19:37 +0000602#endif
603
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500604#if defined(CONFIG_BOOTP_GATEWAY)
wdenk232c1502004-03-12 00:14:09 +0000605 *e++ = 3; /* Default gateway request */
606 *e++ = 4;
607 e += 4;
wdenk3861aa52002-09-27 23:19:37 +0000608#endif
609
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500610#if defined(CONFIG_BOOTP_DNS)
wdenk232c1502004-03-12 00:14:09 +0000611 *e++ = 6; /* Domain Name Server */
612 *e++ = 4;
613 e += 4;
wdenk3861aa52002-09-27 23:19:37 +0000614#endif
615
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500616#if defined(CONFIG_BOOTP_HOSTNAME)
wdenk232c1502004-03-12 00:14:09 +0000617 *e++ = 12; /* Host name request */
618 *e++ = 32;
619 e += 32;
wdenk3861aa52002-09-27 23:19:37 +0000620#endif
621
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500622#if defined(CONFIG_BOOTP_BOOTFILESIZE)
wdenk232c1502004-03-12 00:14:09 +0000623 *e++ = 13; /* Boot file size */
624 *e++ = 2;
625 e += 2;
wdenk3861aa52002-09-27 23:19:37 +0000626#endif
627
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500628#if defined(CONFIG_BOOTP_BOOTPATH)
wdenk232c1502004-03-12 00:14:09 +0000629 *e++ = 17; /* Boot path */
630 *e++ = 32;
631 e += 32;
wdenk3861aa52002-09-27 23:19:37 +0000632#endif
633
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500634#if defined(CONFIG_BOOTP_NISDOMAIN)
wdenk232c1502004-03-12 00:14:09 +0000635 *e++ = 40; /* NIS Domain name request */
636 *e++ = 32;
637 e += 32;
wdenk3861aa52002-09-27 23:19:37 +0000638#endif
Luuk Paulussen09e3a672011-05-16 18:29:19 +0000639#if defined(CONFIG_BOOTP_NTPSERVER)
640 *e++ = 42;
641 *e++ = 4;
642 e += 4;
643#endif
wdenk3861aa52002-09-27 23:19:37 +0000644
wdenk232c1502004-03-12 00:14:09 +0000645 *e++ = 255; /* End of the list */
wdenk3861aa52002-09-27 23:19:37 +0000646
wdenk232c1502004-03-12 00:14:09 +0000647 return e - start;
wdenk3861aa52002-09-27 23:19:37 +0000648}
Jon Loeliger610f2e92007-07-10 11:05:02 -0500649#endif
wdenk3861aa52002-09-27 23:19:37 +0000650
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500651void bootp_reset(void)
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600652{
Thierry Reding92ac8ac2014-08-19 10:21:24 +0200653 bootp_num_ids = 0;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500654 bootp_try = 0;
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600655 bootp_start = get_timer(0);
Thierry Reding92ac8ac2014-08-19 10:21:24 +0200656 bootp_timeout = 250;
Stephen Warrenf59be6e2014-07-25 17:30:48 -0600657}
658
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500659void bootp_request(void)
wdenk3861aa52002-09-27 23:19:37 +0000660{
Joe Hershbergerdb288a92012-05-15 08:59:04 +0000661 uchar *pkt, *iphdr;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500662 struct bootp_hdr *bp;
Joe Hershbergerae446f52012-05-23 07:59:10 +0000663 int extlen, pktlen, iplen;
664 int eth_hdr_size;
Joe Hershbergereafc8db2012-05-23 07:57:58 +0000665#ifdef CONFIG_BOOTP_RANDOM_DELAY
Pavel Machek8e8d73b2014-07-11 11:39:37 +0200666 ulong rand_ms;
Joe Hershbergereafc8db2012-05-23 07:57:58 +0000667#endif
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500668 u32 bootp_id;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500669 struct in_addr zero_ip;
670 struct in_addr bcast_ip;
wdenk3861aa52002-09-27 23:19:37 +0000671
Simon Glass573f14f2011-12-10 11:08:06 +0000672 bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start");
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500673#if defined(CONFIG_CMD_DHCP)
wdenk3861aa52002-09-27 23:19:37 +0000674 dhcp_state = INIT;
675#endif
676
677#ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500678 if (bootp_try == 0)
Joe Hershbergereafc8db2012-05-23 07:57:58 +0000679 srand_mac();
wdenk3861aa52002-09-27 23:19:37 +0000680
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500681 if (bootp_try <= 2) /* Start with max 1024 * 1ms */
682 rand_ms = rand() >> (22 - bootp_try);
Joe Hershbergereafc8db2012-05-23 07:57:58 +0000683 else /* After 3rd BOOTP request max 8192 * 1ms */
684 rand_ms = rand() >> 19;
wdenk3861aa52002-09-27 23:19:37 +0000685
Joe Hershbergereafc8db2012-05-23 07:57:58 +0000686 printf("Random delay: %ld ms...\n", rand_ms);
Pavel Machek8e8d73b2014-07-11 11:39:37 +0200687 mdelay(rand_ms);
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000688
wdenk3861aa52002-09-27 23:19:37 +0000689#endif /* CONFIG_BOOTP_RANDOM_DELAY */
690
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500691 printf("BOOTP broadcast %d\n", ++bootp_try);
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500692 pkt = net_tx_packet;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000693 memset((void *)pkt, 0, PKTSIZE);
wdenk3861aa52002-09-27 23:19:37 +0000694
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500695 eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP);
Joe Hershbergerae446f52012-05-23 07:59:10 +0000696 pkt += eth_hdr_size;
wdenk3861aa52002-09-27 23:19:37 +0000697
698 /*
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000699 * Next line results in incorrect packet size being transmitted,
700 * resulting in errors in some DHCP servers, reporting missing bytes.
701 * Size must be set in packet header after extension length has been
702 * determined.
wdenk3861aa52002-09-27 23:19:37 +0000703 * C. Hallinan, DS4.COM, Inc.
704 */
Joe Hershberger4b11c912012-05-23 07:59:07 +0000705 /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC,
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500706 sizeof (struct bootp_hdr)); */
Joe Hershberger4b11c912012-05-23 07:59:07 +0000707 iphdr = pkt; /* We need this later for net_set_udp_header() */
Joe Hershberger594c26f2012-05-23 07:58:04 +0000708 pkt += IP_UDP_HDR_SIZE;
wdenk3861aa52002-09-27 23:19:37 +0000709
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500710 bp = (struct bootp_hdr *)pkt;
wdenk3861aa52002-09-27 23:19:37 +0000711 bp->bp_op = OP_BOOTREQUEST;
712 bp->bp_htype = HWT_ETHER;
713 bp->bp_hlen = HWL_ETHER;
714 bp->bp_hops = 0;
Bartlomiej Sieka49f3bdb2008-10-01 15:26:28 +0200715 bp->bp_secs = htons(get_timer(0) / 1000);
Joe Hershberger049a95a2015-04-08 01:41:01 -0500716 zero_ip.s_addr = 0;
717 net_write_ip(&bp->bp_ciaddr, zero_ip);
718 net_write_ip(&bp->bp_yiaddr, zero_ip);
719 net_write_ip(&bp->bp_siaddr, zero_ip);
720 net_write_ip(&bp->bp_giaddr, zero_ip);
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500721 memcpy(bp->bp_chaddr, net_ethaddr, 6);
Joe Hershberger14111572015-04-08 01:41:02 -0500722 copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file));
wdenk3861aa52002-09-27 23:19:37 +0000723
724 /* Request additional information from the BOOTP/DHCP server */
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500725#if defined(CONFIG_CMD_DHCP)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500726 extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_DISCOVER, zero_ip,
727 zero_ip);
wdenk3861aa52002-09-27 23:19:37 +0000728#else
Joe Hershberger049a95a2015-04-08 01:41:01 -0500729 extlen = bootp_extended((u8 *)bp->bp_vend);
Jon Loeliger610f2e92007-07-10 11:05:02 -0500730#endif
wdenk3861aa52002-09-27 23:19:37 +0000731
732 /*
733 * Bootp ID is the lower 4 bytes of our ethernet address
Bartlomiej Sieka49f3bdb2008-10-01 15:26:28 +0200734 * plus the current time in ms.
wdenk3861aa52002-09-27 23:19:37 +0000735 */
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500736 bootp_id = ((u32)net_ethaddr[2] << 24)
737 | ((u32)net_ethaddr[3] << 16)
738 | ((u32)net_ethaddr[4] << 8)
739 | (u32)net_ethaddr[5];
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500740 bootp_id += get_timer(0);
741 bootp_id = htonl(bootp_id);
742 bootp_add_id(bootp_id);
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500743 net_copy_u32(&bp->bp_id, &bootp_id);
wdenk3861aa52002-09-27 23:19:37 +0000744
745 /*
746 * Calculate proper packet lengths taking into account the
747 * variable size of the options field
748 */
Joe Hershbergerae446f52012-05-23 07:59:10 +0000749 iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen;
750 pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500751 bcast_ip.s_addr = 0xFFFFFFFFL;
752 net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500753 net_set_timeout_handler(bootp_timeout, bootp_timeout_handler);
wdenk3861aa52002-09-27 23:19:37 +0000754
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500755#if defined(CONFIG_CMD_DHCP)
wdenk3861aa52002-09-27 23:19:37 +0000756 dhcp_state = SELECTING;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500757 net_set_udp_handler(dhcp_handler);
wdenk3861aa52002-09-27 23:19:37 +0000758#else
Joe Hershberger049a95a2015-04-08 01:41:01 -0500759 net_set_udp_handler(bootp_handler);
Jon Loeliger610f2e92007-07-10 11:05:02 -0500760#endif
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500761 net_send_packet(net_tx_packet, pktlen);
wdenk3861aa52002-09-27 23:19:37 +0000762}
763
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500764#if defined(CONFIG_CMD_DHCP)
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500765static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
wdenk3861aa52002-09-27 23:19:37 +0000766{
wdenk3e386912003-04-05 00:53:31 +0000767 uchar *end = popt + BOOTP_HDR_SIZE;
wdenk3861aa52002-09-27 23:19:37 +0000768 int oplen, size;
Wolfgang Denkd8d87242009-09-11 09:05:32 +0200769#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
770 int *to_ptr;
771#endif
wdenk3861aa52002-09-27 23:19:37 +0000772
wdenk232c1502004-03-12 00:14:09 +0000773 while (popt < end && *popt != 0xff) {
wdenk3861aa52002-09-27 23:19:37 +0000774 oplen = *(popt + 1);
wdenk232c1502004-03-12 00:14:09 +0000775 switch (*popt) {
776 case 1:
Joe Hershberger049a95a2015-04-08 01:41:01 -0500777 net_copy_ip(&net_netmask, (popt + 2));
wdenk232c1502004-03-12 00:14:09 +0000778 break;
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500779#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
wdenkea287de2005-04-01 00:25:43 +0000780 case 2: /* Time offset */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500781 to_ptr = &net_ntp_time_offset;
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500782 net_copy_u32((u32 *)to_ptr, (u32 *)(popt + 2));
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500783 net_ntp_time_offset = ntohl(net_ntp_time_offset);
wdenkea287de2005-04-01 00:25:43 +0000784 break;
785#endif
wdenk232c1502004-03-12 00:14:09 +0000786 case 3:
Joe Hershberger049a95a2015-04-08 01:41:01 -0500787 net_copy_ip(&net_gateway, (popt + 2));
wdenk232c1502004-03-12 00:14:09 +0000788 break;
789 case 6:
Joe Hershberger049a95a2015-04-08 01:41:01 -0500790 net_copy_ip(&net_dns_server, (popt + 2));
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500791#if defined(CONFIG_BOOTP_DNS2)
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000792 if (*(popt + 1) > 4)
Joe Hershberger049a95a2015-04-08 01:41:01 -0500793 net_copy_ip(&net_dns_server2, (popt + 2 + 4));
stroesefe389a82003-08-28 14:17:32 +0000794#endif
wdenk232c1502004-03-12 00:14:09 +0000795 break;
796 case 12:
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000797 size = truncate_sz("Host Name",
Joe Hershberger586cbe52015-04-08 01:41:03 -0500798 sizeof(net_hostname), oplen);
799 memcpy(&net_hostname, popt + 2, size);
800 net_hostname[size] = 0;
wdenk232c1502004-03-12 00:14:09 +0000801 break;
802 case 15: /* Ignore Domain Name Option */
803 break;
804 case 17:
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000805 size = truncate_sz("Root Path",
Joe Hershberger586cbe52015-04-08 01:41:03 -0500806 sizeof(net_root_path), oplen);
807 memcpy(&net_root_path, popt + 2, size);
808 net_root_path[size] = 0;
wdenk232c1502004-03-12 00:14:09 +0000809 break;
Brian Rzyckiee0f60d2012-09-11 09:22:53 +0000810 case 28: /* Ignore Broadcast Address Option */
811 break;
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500812#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
wdenkea287de2005-04-01 00:25:43 +0000813 case 42: /* NTP server IP */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500814 net_copy_ip(&net_ntp_server, (popt + 2));
wdenkea287de2005-04-01 00:25:43 +0000815 break;
816#endif
wdenk232c1502004-03-12 00:14:09 +0000817 case 51:
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500818 net_copy_u32(&dhcp_leasetime, (u32 *)(popt + 2));
wdenk232c1502004-03-12 00:14:09 +0000819 break;
820 case 53: /* Ignore Message Type Option */
821 break;
822 case 54:
Joe Hershberger049a95a2015-04-08 01:41:01 -0500823 net_copy_ip(&dhcp_server_ip, (popt + 2));
wdenk232c1502004-03-12 00:14:09 +0000824 break;
825 case 58: /* Ignore Renewal Time Option */
826 break;
827 case 59: /* Ignore Rebinding Time Option */
828 break;
Wolfgang Denk3b2e4fd2006-03-12 18:26:46 +0100829 case 66: /* Ignore TFTP server name */
830 break;
831 case 67: /* vendor opt bootfile */
832 /*
833 * I can't use dhcp_vendorex_proc here because I need
834 * to write into the bootp packet - even then I had to
835 * pass the bootp packet pointer into here as the
836 * second arg
837 */
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000838 size = truncate_sz("Opt Boot File",
Wolfgang Denk3b2e4fd2006-03-12 18:26:46 +0100839 sizeof(bp->bp_file),
840 oplen);
841 if (bp->bp_file[0] == '\0' && size > 0) {
842 /*
843 * only use vendor boot file if we didn't
844 * receive a boot file in the main non-vendor
845 * part of the packet - god only knows why
846 * some vendors chose not to use this perfectly
847 * good spot to store the boot file (join on
848 * Tru64 Unix) it seems mind bogglingly crazy
849 * to me
850 */
851 printf("*** WARNING: using vendor "
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500852 "optional boot file\n");
Wolfgang Denk3b2e4fd2006-03-12 18:26:46 +0100853 memcpy(bp->bp_file, popt + 2, size);
854 bp->bp_file[size] = '\0';
855 }
856 break;
wdenk232c1502004-03-12 00:14:09 +0000857 default:
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500858#if defined(CONFIG_BOOTP_VENDOREX)
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000859 if (dhcp_vendorex_proc(popt))
wdenk8bde7f72003-06-27 21:31:46 +0000860 break;
wdenk3861aa52002-09-27 23:19:37 +0000861#endif
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000862 printf("*** Unhandled DHCP Option in OFFER/ACK:"
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500863 " %d\n", *popt);
wdenk232c1502004-03-12 00:14:09 +0000864 break;
wdenk3861aa52002-09-27 23:19:37 +0000865 }
866 popt += oplen + 2; /* Process next option */
867 }
868}
869
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500870static int dhcp_message_type(unsigned char *popt)
wdenk3861aa52002-09-27 23:19:37 +0000871{
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500872 if (net_read_u32((u32 *)popt) != htonl(BOOTP_VENDOR_MAGIC))
wdenk3861aa52002-09-27 23:19:37 +0000873 return -1;
874
875 popt += 4;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000876 while (*popt != 0xff) {
877 if (*popt == 53) /* DHCP Message Type */
wdenk3861aa52002-09-27 23:19:37 +0000878 return *(popt + 2);
879 popt += *(popt + 1) + 2; /* Scan through all options */
880 }
881 return -1;
882}
883
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500884static void dhcp_send_request_packet(struct bootp_hdr *bp_offer)
wdenk3861aa52002-09-27 23:19:37 +0000885{
Joe Hershbergerdb288a92012-05-15 08:59:04 +0000886 uchar *pkt, *iphdr;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500887 struct bootp_hdr *bp;
wdenk3861aa52002-09-27 23:19:37 +0000888 int pktlen, iplen, extlen;
Joe Hershbergerae446f52012-05-23 07:59:10 +0000889 int eth_hdr_size;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500890 struct in_addr offered_ip;
891 struct in_addr zero_ip;
892 struct in_addr bcast_ip;
wdenk3861aa52002-09-27 23:19:37 +0000893
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500894 debug("dhcp_send_request_packet: Sending DHCPREQUEST\n");
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500895 pkt = net_tx_packet;
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000896 memset((void *)pkt, 0, PKTSIZE);
wdenk3861aa52002-09-27 23:19:37 +0000897
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500898 eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP);
Joe Hershbergerae446f52012-05-23 07:59:10 +0000899 pkt += eth_hdr_size;
wdenk3861aa52002-09-27 23:19:37 +0000900
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000901 iphdr = pkt; /* We'll need this later to set proper pkt size */
Joe Hershberger594c26f2012-05-23 07:58:04 +0000902 pkt += IP_UDP_HDR_SIZE;
wdenk3861aa52002-09-27 23:19:37 +0000903
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500904 bp = (struct bootp_hdr *)pkt;
wdenk3861aa52002-09-27 23:19:37 +0000905 bp->bp_op = OP_BOOTREQUEST;
906 bp->bp_htype = HWT_ETHER;
907 bp->bp_hlen = HWL_ETHER;
908 bp->bp_hops = 0;
Bartlomiej Sieka49f3bdb2008-10-01 15:26:28 +0200909 bp->bp_secs = htons(get_timer(0) / 1000);
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000910 /* Do not set the client IP, your IP, or server IP yet, since it
911 * hasn't been ACK'ed by the server yet */
Justin Flammiae5c794e2007-10-29 17:40:35 -0400912
Wolfgang Denkc6686702006-10-12 00:01:08 +0200913 /*
Wolfgang Denkd82718f2006-10-09 01:26:14 +0200914 * RFC3046 requires Relay Agents to discard packets with
915 * nonzero and offered giaddr
916 */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500917 zero_ip.s_addr = 0;
918 net_write_ip(&bp->bp_giaddr, zero_ip);
Wolfgang Denkd82718f2006-10-09 01:26:14 +0200919
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500920 memcpy(bp->bp_chaddr, net_ethaddr, 6);
wdenk3861aa52002-09-27 23:19:37 +0000921
922 /*
923 * ID is the id of the OFFER packet
924 */
925
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500926 net_copy_u32(&bp->bp_id, &bp_offer->bp_id);
wdenk3861aa52002-09-27 23:19:37 +0000927
928 /*
929 * Copy options from OFFER packet if present
930 */
Justin Flammiae5c794e2007-10-29 17:40:35 -0400931
932 /* Copy offered IP into the parameters request list */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500933 net_copy_ip(&offered_ip, &bp_offer->bp_yiaddr);
934 extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_REQUEST,
935 dhcp_server_ip, offered_ip);
wdenk3861aa52002-09-27 23:19:37 +0000936
Joe Hershbergerae446f52012-05-23 07:59:10 +0000937 iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen;
938 pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500939 bcast_ip.s_addr = 0xFFFFFFFFL;
940 net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen);
wdenk3861aa52002-09-27 23:19:37 +0000941
Aras Vaichasd9a2f412008-03-26 09:43:57 +1100942#ifdef CONFIG_BOOTP_DHCP_REQUEST_DELAY
943 udelay(CONFIG_BOOTP_DHCP_REQUEST_DELAY);
944#endif /* CONFIG_BOOTP_DHCP_REQUEST_DELAY */
Joe Hershbergerf9623222012-05-23 07:59:11 +0000945 debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen);
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500946 net_send_packet(net_tx_packet, pktlen);
wdenk3861aa52002-09-27 23:19:37 +0000947}
948
949/*
950 * Handle DHCP received packets.
951 */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500952static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
953 unsigned src, unsigned len)
wdenk3861aa52002-09-27 23:19:37 +0000954{
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500955 struct bootp_hdr *bp = (struct bootp_hdr *)pkt;
wdenk3861aa52002-09-27 23:19:37 +0000956
Robin Getz0ebf04c2009-07-23 03:01:03 -0400957 debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n",
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500958 src, dest, len, dhcp_state);
wdenk3861aa52002-09-27 23:19:37 +0000959
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000960 /* Filter out pkts we don't want */
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500961 if (check_packet(pkt, dest, src, len))
wdenk3861aa52002-09-27 23:19:37 +0000962 return;
963
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500964 debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: "
965 "%d\n", src, dest, len, dhcp_state);
wdenk3861aa52002-09-27 23:19:37 +0000966
967 switch (dhcp_state) {
968 case SELECTING:
969 /*
970 * Wait an appropriate time for any potential DHCPOFFER packets
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000971 * to arrive. Then select one, and generate DHCPREQUEST
972 * response. If filename is in format we recognize, assume it
973 * is a valid OFFER from a server we want.
wdenk3861aa52002-09-27 23:19:37 +0000974 */
Robin Getz0ebf04c2009-07-23 03:01:03 -0400975 debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200976#ifdef CONFIG_SYS_BOOTFILE_PREFIX
wdenk3861aa52002-09-27 23:19:37 +0000977 if (strncmp(bp->bp_file,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200978 CONFIG_SYS_BOOTFILE_PREFIX,
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000979 strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200980#endif /* CONFIG_SYS_BOOTFILE_PREFIX */
wdenk3861aa52002-09-27 23:19:37 +0000981
Robin Getz0ebf04c2009-07-23 03:01:03 -0400982 debug("TRANSITIONING TO REQUESTING STATE\n");
wdenk3861aa52002-09-27 23:19:37 +0000983 dhcp_state = REQUESTING;
stroese759a51b2003-04-10 13:26:44 +0000984
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -0500985 if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
Joe Hershberger3090b7e32012-05-15 08:59:06 +0000986 htonl(BOOTP_VENDOR_MAGIC))
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500987 dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
wdenk3861aa52002-09-27 23:19:37 +0000988
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500989 net_set_timeout_handler(5000, bootp_timeout_handler);
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500990 dhcp_send_request_packet(bp);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200991#ifdef CONFIG_SYS_BOOTFILE_PREFIX
wdenk3861aa52002-09-27 23:19:37 +0000992 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200993#endif /* CONFIG_SYS_BOOTFILE_PREFIX */
wdenk3861aa52002-09-27 23:19:37 +0000994
995 return;
996 break;
997 case REQUESTING:
Robin Getz0ebf04c2009-07-23 03:01:03 -0400998 debug("DHCP State: REQUESTING\n");
wdenk3861aa52002-09-27 23:19:37 +0000999
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001000 if (dhcp_message_type((u8 *)bp->bp_vend) == DHCP_ACK) {
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -05001001 if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
Joe Hershberger3090b7e32012-05-15 08:59:06 +00001002 htonl(BOOTP_VENDOR_MAGIC))
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001003 dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
Joe Hershberger3090b7e32012-05-15 08:59:06 +00001004 /* Store net params from reply */
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001005 store_net_params(bp);
wdenk3861aa52002-09-27 23:19:37 +00001006 dhcp_state = BOUND;
Thierry Reding92ac8ac2014-08-19 10:21:24 +02001007 printf("DHCP client bound to address %pI4 (%lu ms)\n",
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001008 &net_ip, get_timer(bootp_start));
Simon Glass573f14f2011-12-10 11:08:06 +00001009 bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP,
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001010 "bootp_stop");
wdenk3861aa52002-09-27 23:19:37 +00001011
Simon Glasse4a3d572011-10-27 06:24:32 +00001012 net_auto_load();
wdenk3861aa52002-09-27 23:19:37 +00001013 return;
1014 }
1015 break;
Remy Bohmer51dfe132008-08-20 11:30:28 +02001016 case BOUND:
1017 /* DHCP client bound to address */
1018 break;
wdenk3861aa52002-09-27 23:19:37 +00001019 default:
Joe Hershberger3090b7e32012-05-15 08:59:06 +00001020 puts("DHCP: INVALID STATE\n");
wdenk3861aa52002-09-27 23:19:37 +00001021 break;
1022 }
wdenk3861aa52002-09-27 23:19:37 +00001023}
1024
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001025void dhcp_request(void)
wdenk3861aa52002-09-27 23:19:37 +00001026{
Joe Hershberger7044c6b2015-04-08 01:41:09 -05001027 bootp_request();
wdenk3861aa52002-09-27 23:19:37 +00001028}
Wolfgang Denk992742a2007-11-03 23:09:27 +01001029#endif /* CONFIG_CMD_DHCP */