wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 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 |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 8 | * Copyright 2000-2004 Wolfgang Denk, wd@denx.de |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 9 | */ |
| 10 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 11 | #include <common.h> |
Simon Glass | 1ea9789 | 2020-05-10 11:40:00 -0600 | [diff] [blame] | 12 | #include <bootstage.h> |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 13 | #include <command.h> |
Simon Glass | 6eaea25 | 2019-08-01 09:46:48 -0600 | [diff] [blame] | 14 | #include <env.h> |
Alexander Graf | 94c4b99 | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 15 | #include <efi_loader.h> |
Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 16 | #include <log.h> |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 17 | #include <net.h> |
Simon Glass | 274e0b0 | 2020-05-10 11:39:56 -0600 | [diff] [blame] | 18 | #include <rand.h> |
Simon Glass | 6f04498 | 2020-05-10 11:39:52 -0600 | [diff] [blame] | 19 | #include <uuid.h> |
Simon Glass | dbd7954 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 20 | #include <linux/delay.h> |
Lukasz Majewski | 2118592 | 2015-08-24 00:21:43 +0200 | [diff] [blame] | 21 | #include <net/tftp.h> |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 22 | #include "bootp.h" |
Uri Mashiach | 4892d39 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 23 | #ifdef CONFIG_LED_STATUS |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 24 | #include <status_led.h> |
| 25 | #endif |
Kim Phillips | 576175b | 2012-07-05 13:19:32 +0000 | [diff] [blame] | 26 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
| 27 | #include "net_rand.h" |
| 28 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 29 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 30 | #define BOOTP_VENDOR_MAGIC 0x63825363 /* RFC1048 Magic Cookie */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 31 | |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 32 | /* |
| 33 | * The timeout for the initial BOOTP/DHCP request used to be described by a |
Tom Rini | 26011a3 | 2022-03-11 09:12:02 -0500 | [diff] [blame] | 34 | * counter of fixed-length timeout periods. CONFIG_NET_RETRY_COUNT represents |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 35 | * that counter |
| 36 | * |
| 37 | * Now that the timeout periods are variable (exponential backoff and retry) |
| 38 | * we convert the timeout count to the absolute time it would have take to |
| 39 | * execute that many retries, and keep sending retry packets until that time |
| 40 | * is reached. |
| 41 | */ |
Tom Rini | 26011a3 | 2022-03-11 09:12:02 -0500 | [diff] [blame] | 42 | #define TIMEOUT_MS ((3 + (CONFIG_NET_RETRY_COUNT * 5)) * 1000) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 43 | |
Tom Rini | 364d002 | 2023-01-10 11:19:45 -0500 | [diff] [blame] | 44 | #ifndef CFG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ |
| 45 | #define CFG_DHCP_MIN_EXT_LEN 64 |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 46 | #endif |
| 47 | |
Tom Rini | 364d002 | 2023-01-10 11:19:45 -0500 | [diff] [blame] | 48 | #ifndef CFG_BOOTP_ID_CACHE_SIZE |
| 49 | #define CFG_BOOTP_ID_CACHE_SIZE 4 |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 50 | #endif |
| 51 | |
Tom Rini | 364d002 | 2023-01-10 11:19:45 -0500 | [diff] [blame] | 52 | u32 bootp_ids[CFG_BOOTP_ID_CACHE_SIZE]; |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 53 | unsigned int bootp_num_ids; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 54 | int bootp_try; |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 55 | ulong bootp_start; |
| 56 | ulong bootp_timeout; |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 57 | char net_nis_domain[32] = {0,}; /* Our NIS domain */ |
| 58 | char net_hostname[32] = {0,}; /* Our hostname */ |
Andre Kalb | e9926e5 | 2022-01-28 09:40:32 +0100 | [diff] [blame] | 59 | char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN] = {0,}; /* Our bootpath */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 60 | |
Alexandre Messier | 1597132 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 61 | static ulong time_taken_max; |
| 62 | |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 63 | #if defined(CONFIG_CMD_DHCP) |
Kim Phillips | 40c2c03 | 2012-10-29 13:34:33 +0000 | [diff] [blame] | 64 | static dhcp_state_t dhcp_state = INIT; |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 65 | static u32 dhcp_leasetime; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 66 | static struct in_addr dhcp_server_ip; |
Stefan Brüns | 345cb83 | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 67 | static u8 dhcp_option_overload; |
| 68 | #define OVERLOAD_FILE 1 |
| 69 | #define OVERLOAD_SNAME 2 |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 70 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 71 | unsigned src, unsigned len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 72 | |
| 73 | /* For Debug */ |
wdenk | b02744a | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 74 | #if 0 |
| 75 | static char *dhcpmsg2str(int type) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 76 | { |
| 77 | switch (type) { |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 78 | case 1: return "DHCPDISCOVER"; break; |
| 79 | case 2: return "DHCPOFFER"; break; |
| 80 | case 3: return "DHCPREQUEST"; break; |
| 81 | case 4: return "DHCPDECLINE"; break; |
| 82 | case 5: return "DHCPACK"; break; |
| 83 | case 6: return "DHCPNACK"; break; |
| 84 | case 7: return "DHCPRELEASE"; break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 85 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
| 86 | } |
| 87 | } |
wdenk | b02744a | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 88 | #endif |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 89 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 90 | |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 91 | static void bootp_add_id(ulong id) |
| 92 | { |
| 93 | if (bootp_num_ids >= ARRAY_SIZE(bootp_ids)) { |
| 94 | size_t size = sizeof(bootp_ids) - sizeof(id); |
| 95 | |
| 96 | memmove(bootp_ids, &bootp_ids[1], size); |
| 97 | bootp_ids[bootp_num_ids - 1] = id; |
| 98 | } else { |
| 99 | bootp_ids[bootp_num_ids] = id; |
| 100 | bootp_num_ids++; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | static bool bootp_match_id(ulong id) |
| 105 | { |
| 106 | unsigned int i; |
| 107 | |
| 108 | for (i = 0; i < bootp_num_ids; i++) |
| 109 | if (bootp_ids[i] == id) |
| 110 | return true; |
| 111 | |
| 112 | return false; |
| 113 | } |
| 114 | |
Stefan Brüns | a48cd93 | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 115 | static int check_reply_packet(uchar *pkt, unsigned dest, unsigned src, |
| 116 | unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 117 | { |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 118 | struct bootp_hdr *bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 119 | int retval = 0; |
| 120 | |
| 121 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) |
| 122 | retval = -1; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 123 | else if (len < sizeof(struct bootp_hdr) - OPT_FIELD_SIZE) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 124 | retval = -2; |
Stefan Brüns | a48cd93 | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 125 | else if (bp->bp_op != OP_BOOTREPLY) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 126 | retval = -3; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 127 | else if (bp->bp_htype != HWT_ETHER) |
| 128 | retval = -4; |
| 129 | else if (bp->bp_hlen != HWL_ETHER) |
| 130 | retval = -5; |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 131 | else if (!bootp_match_id(net_read_u32(&bp->bp_id))) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 132 | retval = -6; |
Anton Persson | bf27a4c | 2016-03-17 09:38:21 +0100 | [diff] [blame] | 133 | else if (memcmp(bp->bp_chaddr, net_ethaddr, HWL_ETHER) != 0) |
| 134 | retval = -7; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 135 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 136 | debug("Filtering pkt = %d\n", retval); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 137 | |
| 138 | return retval; |
| 139 | } |
| 140 | |
Lyle Franklin | 73fcbc7 | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 141 | static void store_bootp_params(struct bootp_hdr *bp) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 142 | { |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 143 | struct in_addr tmp_ip; |
Alexander Graf | 427e695 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 144 | bool overwrite_serverip = true; |
| 145 | |
Simon Glass | 297fc20 | 2021-12-18 11:27:52 -0700 | [diff] [blame] | 146 | if (IS_ENABLED(CONFIG_BOOTP_SERVERIP)) |
| 147 | return; |
| 148 | |
Alexander Graf | 427e695 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 149 | #if defined(CONFIG_BOOTP_PREFER_SERVERIP) |
| 150 | overwrite_serverip = false; |
| 151 | #endif |
Joe Hershberger | 9d37a58 | 2012-05-23 07:59:18 +0000 | [diff] [blame] | 152 | |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 153 | net_copy_ip(&tmp_ip, &bp->bp_siaddr); |
Alexander Graf | 427e695 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 154 | if (tmp_ip.s_addr != 0 && (overwrite_serverip || !net_server_ip.s_addr)) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 155 | net_copy_ip(&net_server_ip, &bp->bp_siaddr); |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 156 | memcpy(net_server_ethaddr, |
| 157 | ((struct ethernet_hdr *)net_rx_packet)->et_src, 6); |
Stefan Brüns | 345cb83 | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 158 | if ( |
| 159 | #if defined(CONFIG_CMD_DHCP) |
| 160 | !(dhcp_option_overload & OVERLOAD_FILE) && |
| 161 | #endif |
Alexander Graf | f43bf5d | 2018-06-15 10:29:27 +0200 | [diff] [blame] | 162 | (strlen(bp->bp_file) > 0) && |
| 163 | !net_boot_file_name_explicit) { |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 164 | copy_filename(net_boot_file_name, bp->bp_file, |
| 165 | sizeof(net_boot_file_name)); |
Stefan Brüns | 345cb83 | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 166 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 167 | |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 168 | debug("net_boot_file_name: %s\n", net_boot_file_name); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 169 | |
| 170 | /* Propagate to environment: |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 171 | * don't delete exising entry when BOOTP / DHCP reply does |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 172 | * not contain a new value |
| 173 | */ |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 174 | if (*net_boot_file_name) |
Simon Glass | 6a38e41 | 2017-08-03 12:22:09 -0600 | [diff] [blame] | 175 | env_set("bootfile", net_boot_file_name); |
Lyle Franklin | 73fcbc7 | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet |
| 180 | */ |
| 181 | static void store_net_params(struct bootp_hdr *bp) |
| 182 | { |
| 183 | #if !defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 184 | store_bootp_params(bp); |
| 185 | #endif |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 186 | net_copy_ip(&net_ip, &bp->bp_yiaddr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 187 | } |
| 188 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 189 | static int truncate_sz(const char *name, int maxlen, int curlen) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 190 | { |
| 191 | if (curlen >= maxlen) { |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 192 | printf("*** WARNING: %s is too long (%d - max: %d)" |
| 193 | " - truncated\n", name, curlen, maxlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 194 | curlen = maxlen - 1; |
| 195 | } |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 196 | return curlen; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 199 | #if !defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 200 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 201 | static void bootp_process_vendor_field(u8 *ext) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 202 | { |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 203 | int size = *(ext + 1); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 204 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 205 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 206 | *(ext + 1)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 207 | |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 208 | net_boot_file_expected_size_in_blocks = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 209 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 210 | switch (*ext) { |
| 211 | /* Fixed length fields */ |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 212 | case 1: /* Subnet mask */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 213 | if (net_netmask.s_addr == 0) |
| 214 | net_copy_ip(&net_netmask, (struct in_addr *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 215 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 216 | case 2: /* Time offset - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 217 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 218 | /* Variable length fields */ |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 219 | case 3: /* Gateways list */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 220 | if (net_gateway.s_addr == 0) |
| 221 | net_copy_ip(&net_gateway, (struct in_addr *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 222 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 223 | case 4: /* Time server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 224 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 225 | case 5: /* IEN-116 name server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 226 | break; |
| 227 | case 6: |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 228 | if (net_dns_server.s_addr == 0) |
| 229 | net_copy_ip(&net_dns_server, |
| 230 | (struct in_addr *)(ext + 2)); |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 231 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 232 | if ((net_dns_server2.s_addr == 0) && (size > 4)) |
| 233 | net_copy_ip(&net_dns_server2, |
| 234 | (struct in_addr *)(ext + 2 + 4)); |
stroese | e0aadfb | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 235 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 236 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 237 | case 7: /* Log server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 238 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 239 | case 8: /* Cookie/Quote server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 240 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 241 | case 9: /* LPR server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 242 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 243 | case 10: /* Impress server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 244 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 245 | case 11: /* RPL server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 246 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 247 | case 12: /* Host name */ |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 248 | if (net_hostname[0] == 0) { |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 249 | size = truncate_sz("Host Name", |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 250 | sizeof(net_hostname), size); |
| 251 | memcpy(&net_hostname, ext + 2, size); |
| 252 | net_hostname[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 253 | } |
| 254 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 255 | case 13: /* Boot file size */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 256 | if (size == 2) |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 257 | net_boot_file_expected_size_in_blocks = |
| 258 | ntohs(*(ushort *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 259 | else if (size == 4) |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 260 | net_boot_file_expected_size_in_blocks = |
| 261 | ntohl(*(ulong *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 262 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 263 | case 14: /* Merit dump file - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 264 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 265 | case 15: /* Domain name - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 266 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 267 | case 16: /* Swap server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 268 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 269 | case 17: /* Root path */ |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 270 | if (net_root_path[0] == 0) { |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 271 | size = truncate_sz("Root Path", |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 272 | sizeof(net_root_path), size); |
| 273 | memcpy(&net_root_path, ext + 2, size); |
| 274 | net_root_path[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 275 | } |
| 276 | break; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 277 | case 18: /* Extension path - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 278 | /* |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 279 | * This can be used to send the information of the |
| 280 | * vendor area in another file that the client can |
| 281 | * access via TFTP. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 282 | */ |
| 283 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 284 | /* IP host layer fields */ |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 285 | case 40: /* NIS Domain name */ |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 286 | if (net_nis_domain[0] == 0) { |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 287 | size = truncate_sz("NIS Domain Name", |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 288 | sizeof(net_nis_domain), size); |
| 289 | memcpy(&net_nis_domain, ext + 2, size); |
| 290 | net_nis_domain[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 291 | } |
| 292 | break; |
Luuk Paulussen | 6380e01 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 293 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
| 294 | case 42: /* NTP server IP */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 295 | net_copy_ip(&net_ntp_server, (struct in_addr *)(ext + 2)); |
Luuk Paulussen | 6380e01 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 296 | break; |
| 297 | #endif |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 298 | /* Application layer fields */ |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 299 | case 43: /* Vendor specific info - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 300 | /* |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 301 | * Binary information to exchange specific |
| 302 | * product information. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 303 | */ |
| 304 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 305 | /* Reserved (custom) fields (128..254) */ |
| 306 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 307 | } |
| 308 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 309 | static void bootp_process_vendor(u8 *ext, int size) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 310 | { |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 311 | u8 *end = ext + size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 312 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 313 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 314 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 315 | while ((ext < end) && (*ext != 0xff)) { |
| 316 | if (*ext == 0) { |
| 317 | ext++; |
| 318 | } else { |
| 319 | u8 *opt = ext; |
| 320 | |
| 321 | ext += ext[1] + 2; |
| 322 | if (ext <= end) |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 323 | bootp_process_vendor_field(opt); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 324 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 325 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 326 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 327 | debug("[BOOTP] Received fields:\n"); |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 328 | if (net_netmask.s_addr) |
| 329 | debug("net_netmask : %pI4\n", &net_netmask); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 330 | |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 331 | if (net_gateway.s_addr) |
| 332 | debug("net_gateway : %pI4", &net_gateway); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 333 | |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 334 | if (net_boot_file_expected_size_in_blocks) |
| 335 | debug("net_boot_file_expected_size_in_blocks : %d\n", |
| 336 | net_boot_file_expected_size_in_blocks); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 337 | |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 338 | if (net_hostname[0]) |
| 339 | debug("net_hostname : %s\n", net_hostname); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 340 | |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 341 | if (net_root_path[0]) |
| 342 | debug("net_root_path : %s\n", net_root_path); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 343 | |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 344 | if (net_nis_domain[0]) |
| 345 | debug("net_nis_domain : %s\n", net_nis_domain); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 346 | |
Luuk Paulussen | 6380e01 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 347 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
Chris Packham | 3a2ae81 | 2018-05-03 20:19:03 +1200 | [diff] [blame] | 348 | if (net_ntp_server.s_addr) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 349 | debug("net_ntp_server : %pI4\n", &net_ntp_server); |
Luuk Paulussen | 6380e01 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 350 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 351 | } |
Simon Glass | ab068eb | 2011-06-13 16:13:12 -0700 | [diff] [blame] | 352 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 353 | /* |
| 354 | * Handle a BOOTP received packet. |
| 355 | */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 356 | static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 357 | unsigned src, unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 358 | { |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 359 | struct bootp_hdr *bp; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 360 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 361 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 362 | src, dest, len, sizeof(struct bootp_hdr)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 363 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 364 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 365 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 366 | /* Filter out pkts we don't want */ |
Stefan Brüns | a48cd93 | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 367 | if (check_reply_packet(pkt, dest, src, len)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 368 | return; |
| 369 | |
| 370 | /* |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 371 | * Got a good BOOTP reply. Copy the data into our variables. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 372 | */ |
Uri Mashiach | 4892d39 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 373 | #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE) |
| 374 | status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_OFF); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 375 | #endif |
| 376 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 377 | store_net_params(bp); /* Store net parameters from reply */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 378 | |
| 379 | /* Retrieve extended information (we must parse the vendor area) */ |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 380 | if (net_read_u32((u32 *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 381 | bootp_process_vendor((uchar *)&bp->bp_vend[4], len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 382 | |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 383 | net_set_timeout_handler(0, (thand_f *)0); |
Simon Glass | 768cbf0 | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 384 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 385 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 386 | debug("Got good BOOTP\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 387 | |
Simon Glass | 5234ad1 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 388 | net_auto_load(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 389 | } |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 390 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 391 | |
| 392 | /* |
| 393 | * Timeout on BOOTP/DHCP request. |
| 394 | */ |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 395 | static void bootp_timeout_handler(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 396 | { |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 397 | ulong time_taken = get_timer(bootp_start); |
| 398 | |
Alexandre Messier | 1597132 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 399 | if (time_taken >= time_taken_max) { |
Joe Hershberger | 8ca7fa0 | 2012-05-23 07:59:19 +0000 | [diff] [blame] | 400 | #ifdef CONFIG_BOOTP_MAY_FAIL |
Joe Hershberger | 724cc6a | 2017-11-07 18:13:40 -0800 | [diff] [blame] | 401 | char *ethrotate; |
| 402 | |
| 403 | ethrotate = env_get("ethrotate"); |
| 404 | if ((ethrotate && strcmp(ethrotate, "no") == 0) || |
| 405 | net_restart_wrap) { |
| 406 | puts("\nRetry time exceeded\n"); |
| 407 | net_set_state(NETLOOP_FAIL); |
| 408 | } else |
Joe Hershberger | 8ca7fa0 | 2012-05-23 07:59:19 +0000 | [diff] [blame] | 409 | #endif |
Joe Hershberger | 724cc6a | 2017-11-07 18:13:40 -0800 | [diff] [blame] | 410 | { |
| 411 | puts("\nRetry time exceeded; starting again\n"); |
| 412 | net_start_again(); |
| 413 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 414 | } else { |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 415 | bootp_timeout *= 2; |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 416 | if (bootp_timeout > 2000) |
| 417 | bootp_timeout = 2000; |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 418 | net_set_timeout_handler(bootp_timeout, bootp_timeout_handler); |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 419 | bootp_request(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 420 | } |
| 421 | } |
| 422 | |
Ilya Yanok | 3087658 | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 423 | #define put_vci(e, str) \ |
| 424 | do { \ |
| 425 | size_t vci_strlen = strlen(str); \ |
| 426 | *e++ = 60; /* Vendor Class Identifier */ \ |
| 427 | *e++ = vci_strlen; \ |
| 428 | memcpy(e, str, vci_strlen); \ |
| 429 | e += vci_strlen; \ |
| 430 | } while (0) |
| 431 | |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 432 | static u8 *add_vci(u8 *e) |
| 433 | { |
Alexander Graf | 3661aac | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 434 | char *vci = NULL; |
Simon Glass | 64b723f | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 435 | char *env_vci = env_get("bootp_vci"); |
Alexander Graf | 3661aac | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 436 | |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 437 | #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING) |
Alexander Graf | 3661aac | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 438 | vci = CONFIG_SPL_NET_VCI_STRING; |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 439 | #elif defined(CONFIG_BOOTP_VCI_STRING) |
Alexander Graf | 3661aac | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 440 | vci = CONFIG_BOOTP_VCI_STRING; |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 441 | #endif |
| 442 | |
Alexander Graf | 3661aac | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 443 | if (env_vci) |
| 444 | vci = env_vci; |
| 445 | |
| 446 | if (vci) |
| 447 | put_vci(e, vci); |
| 448 | |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 449 | return e; |
| 450 | } |
| 451 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 452 | /* |
| 453 | * Initialize BOOTP extension fields in the request. |
| 454 | */ |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 455 | #if defined(CONFIG_CMD_DHCP) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 456 | static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip, |
| 457 | struct in_addr requested_ip) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 458 | { |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 459 | u8 *start = e; |
| 460 | u8 *cnt; |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 461 | #ifdef CONFIG_LIB_UUID |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 462 | char *uuid; |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 463 | #endif |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 464 | int clientarch = -1; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 465 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 466 | #if defined(CONFIG_BOOTP_VENDOREX) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 467 | u8 *x; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 468 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 469 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
Wolfgang Denk | 7fb5266 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 470 | char *hostname; |
stroese | e0aadfb | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 471 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 472 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 473 | *e++ = 99; /* RFC1048 Magic Cookie */ |
| 474 | *e++ = 130; |
| 475 | *e++ = 83; |
| 476 | *e++ = 99; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 477 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 478 | *e++ = 53; /* DHCP Message Type */ |
| 479 | *e++ = 1; |
| 480 | *e++ = message_type; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 481 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 482 | *e++ = 57; /* Maximum DHCP Message Size */ |
| 483 | *e++ = 2; |
Joe Hershberger | ceba447 | 2012-05-23 07:58:14 +0000 | [diff] [blame] | 484 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
| 485 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 486 | |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 487 | if (server_ip.s_addr) { |
| 488 | int tmp = ntohl(server_ip.s_addr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 489 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 490 | *e++ = 54; /* ServerID */ |
| 491 | *e++ = 4; |
| 492 | *e++ = tmp >> 24; |
| 493 | *e++ = tmp >> 16; |
| 494 | *e++ = tmp >> 8; |
| 495 | *e++ = tmp & 0xff; |
| 496 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 497 | |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 498 | if (requested_ip.s_addr) { |
| 499 | int tmp = ntohl(requested_ip.s_addr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 500 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 501 | *e++ = 50; /* Requested IP */ |
| 502 | *e++ = 4; |
| 503 | *e++ = tmp >> 24; |
| 504 | *e++ = tmp >> 16; |
| 505 | *e++ = tmp >> 8; |
| 506 | *e++ = tmp & 0xff; |
| 507 | } |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 508 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
Simon Glass | 64b723f | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 509 | hostname = env_get("hostname"); |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 510 | if (hostname) { |
| 511 | int hostnamelen = strlen(hostname); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 512 | |
| 513 | *e++ = 12; /* Hostname */ |
| 514 | *e++ = hostnamelen; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 515 | memcpy(e, hostname, hostnamelen); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 516 | e += hostnamelen; |
| 517 | } |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 518 | #endif |
| 519 | |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 520 | #ifdef CONFIG_BOOTP_PXE_CLIENTARCH |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 521 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 522 | #endif |
| 523 | |
Simon Glass | 64b723f | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 524 | if (env_get("bootp_arch")) |
Simon Glass | 22c34c2 | 2017-08-03 12:22:13 -0600 | [diff] [blame] | 525 | clientarch = env_get_ulong("bootp_arch", 16, clientarch); |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 526 | |
| 527 | if (clientarch > 0) { |
| 528 | *e++ = 93; /* Client System Architecture */ |
| 529 | *e++ = 2; |
| 530 | *e++ = (clientarch >> 8) & 0xff; |
| 531 | *e++ = clientarch & 0xff; |
| 532 | } |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 533 | |
| 534 | *e++ = 94; /* Client Network Interface Identifier */ |
| 535 | *e++ = 3; |
| 536 | *e++ = 1; /* type field for UNDI */ |
| 537 | *e++ = 0; /* major revision */ |
| 538 | *e++ = 0; /* minor revision */ |
| 539 | |
Alexander Graf | 3d5fc4e | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 540 | #ifdef CONFIG_LIB_UUID |
Simon Glass | 64b723f | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 541 | uuid = env_get("pxeuuid"); |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 542 | |
| 543 | if (uuid) { |
| 544 | if (uuid_str_valid(uuid)) { |
| 545 | *e++ = 97; /* Client Machine Identifier */ |
| 546 | *e++ = 17; |
| 547 | *e++ = 0; /* type 0 - UUID */ |
| 548 | |
Przemyslaw Marczak | 0c81336 | 2014-04-02 10:20:03 +0200 | [diff] [blame] | 549 | uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD); |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 550 | e += 16; |
| 551 | } else { |
| 552 | printf("Invalid pxeuuid: %s\n", uuid); |
| 553 | } |
| 554 | } |
Ilya Yanok | 3087658 | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 555 | #endif |
Jason Hobbs | ea320281 | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 556 | |
Alexander Graf | ea73a04 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 557 | e = add_vci(e); |
stroese | e0aadfb | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 558 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 559 | #if defined(CONFIG_BOOTP_VENDOREX) |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 560 | x = dhcp_vendorex_prep(e); |
| 561 | if (x) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 562 | return x - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 563 | #endif |
| 564 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 565 | *e++ = 55; /* Parameter Request List */ |
| 566 | cnt = e++; /* Pointer to count of requested items */ |
| 567 | *cnt = 0; |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 568 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 569 | *e++ = 1; /* Subnet Mask */ |
| 570 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 571 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 572 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 573 | *e++ = 2; |
| 574 | *cnt += 1; |
| 575 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 576 | #if defined(CONFIG_BOOTP_GATEWAY) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 577 | *e++ = 3; /* Router Option */ |
| 578 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 579 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 580 | #if defined(CONFIG_BOOTP_DNS) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 581 | *e++ = 6; /* DNS Server(s) */ |
| 582 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 583 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 584 | #if defined(CONFIG_BOOTP_HOSTNAME) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 585 | *e++ = 12; /* Hostname */ |
| 586 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 587 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 588 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 589 | *e++ = 13; /* Boot File Size */ |
| 590 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 591 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 592 | #if defined(CONFIG_BOOTP_BOOTPATH) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 593 | *e++ = 17; /* Boot path */ |
| 594 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 595 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 596 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 597 | *e++ = 40; /* NIS Domain name request */ |
| 598 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 599 | #endif |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 600 | #if defined(CONFIG_BOOTP_NTPSERVER) |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 601 | *e++ = 42; |
| 602 | *cnt += 1; |
| 603 | #endif |
Jason Liu | 1c7dca5 | 2010-11-14 12:23:09 +0800 | [diff] [blame] | 604 | /* no options, so back up to avoid sending an empty request list */ |
| 605 | if (*cnt == 0) |
| 606 | e -= 2; |
| 607 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 608 | *e++ = 255; /* End of the list */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 609 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 610 | /* Pad to minimal length */ |
Tom Rini | 364d002 | 2023-01-10 11:19:45 -0500 | [diff] [blame] | 611 | #ifdef CFG_DHCP_MIN_EXT_LEN |
| 612 | while ((e - start) < CFG_DHCP_MIN_EXT_LEN) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 613 | *e++ = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 614 | #endif |
| 615 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 616 | return e - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 617 | } |
| 618 | |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 619 | #else |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 620 | /* |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 621 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 622 | */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 623 | static int bootp_extended(u8 *e) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 624 | { |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 625 | u8 *start = e; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 626 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 627 | *e++ = 99; /* RFC1048 Magic Cookie */ |
| 628 | *e++ = 130; |
| 629 | *e++ = 83; |
| 630 | *e++ = 99; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 631 | |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 632 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 633 | *e++ = 53; /* DHCP Message Type */ |
| 634 | *e++ = 1; |
| 635 | *e++ = DHCP_DISCOVER; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 636 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 637 | *e++ = 57; /* Maximum DHCP Message Size */ |
| 638 | *e++ = 2; |
Joe Hershberger | ceba447 | 2012-05-23 07:58:14 +0000 | [diff] [blame] | 639 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
| 640 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 641 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 642 | |
Walter Stoll | 8182a3a | 2021-10-12 11:01:59 +0000 | [diff] [blame] | 643 | e = add_vci(e); |
Ilya Yanok | 3087658 | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 644 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 645 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 646 | *e++ = 1; /* Subnet mask request */ |
| 647 | *e++ = 4; |
| 648 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 649 | #endif |
| 650 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 651 | #if defined(CONFIG_BOOTP_GATEWAY) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 652 | *e++ = 3; /* Default gateway request */ |
| 653 | *e++ = 4; |
| 654 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 655 | #endif |
| 656 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 657 | #if defined(CONFIG_BOOTP_DNS) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 658 | *e++ = 6; /* Domain Name Server */ |
| 659 | *e++ = 4; |
| 660 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 661 | #endif |
| 662 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 663 | #if defined(CONFIG_BOOTP_HOSTNAME) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 664 | *e++ = 12; /* Host name request */ |
| 665 | *e++ = 32; |
| 666 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 667 | #endif |
| 668 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 669 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 670 | *e++ = 13; /* Boot file size */ |
| 671 | *e++ = 2; |
| 672 | e += 2; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 673 | #endif |
| 674 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 675 | #if defined(CONFIG_BOOTP_BOOTPATH) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 676 | *e++ = 17; /* Boot path */ |
| 677 | *e++ = 32; |
| 678 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 679 | #endif |
| 680 | |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 681 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 682 | *e++ = 40; /* NIS Domain name request */ |
| 683 | *e++ = 32; |
| 684 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 685 | #endif |
Luuk Paulussen | 6380e01 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 686 | #if defined(CONFIG_BOOTP_NTPSERVER) |
| 687 | *e++ = 42; |
| 688 | *e++ = 4; |
| 689 | e += 4; |
| 690 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 691 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 692 | *e++ = 255; /* End of the list */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 693 | |
Andre Renaud | 23298cd | 2016-05-05 07:28:08 -0600 | [diff] [blame] | 694 | /* |
| 695 | * If nothing in list, remove it altogether. Some DHCP servers get |
| 696 | * upset by this minor faux pas and do not respond at all. |
| 697 | */ |
| 698 | if (e == start + 3) { |
| 699 | printf("*** Warning: no DHCP options requested\n"); |
| 700 | e -= 3; |
| 701 | } |
| 702 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 703 | return e - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 704 | } |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 705 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 706 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 707 | void bootp_reset(void) |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 708 | { |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 709 | bootp_num_ids = 0; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 710 | bootp_try = 0; |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 711 | bootp_start = get_timer(0); |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 712 | bootp_timeout = 250; |
Stephen Warren | 69e1e35 | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 713 | } |
| 714 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 715 | void bootp_request(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 716 | { |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 717 | uchar *pkt, *iphdr; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 718 | struct bootp_hdr *bp; |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 719 | int extlen, pktlen, iplen; |
| 720 | int eth_hdr_size; |
Joe Hershberger | 797f2c5 | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 721 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
Pavel Machek | 764c29d | 2014-07-11 11:39:37 +0200 | [diff] [blame] | 722 | ulong rand_ms; |
Joe Hershberger | 797f2c5 | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 723 | #endif |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 724 | u32 bootp_id; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 725 | struct in_addr zero_ip; |
| 726 | struct in_addr bcast_ip; |
Alexandre Messier | 1597132 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 727 | char *ep; /* Environment pointer */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 728 | |
Simon Glass | 768cbf0 | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 729 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 730 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 731 | dhcp_state = INIT; |
| 732 | #endif |
| 733 | |
Simon Glass | 64b723f | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 734 | ep = env_get("bootpretryperiod"); |
Alexandre Messier | 1597132 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 735 | if (ep != NULL) |
Simon Glass | ff9b903 | 2021-07-24 09:03:30 -0600 | [diff] [blame] | 736 | time_taken_max = dectoul(ep, NULL); |
Alexandre Messier | 1597132 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 737 | else |
| 738 | time_taken_max = TIMEOUT_MS; |
| 739 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 740 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 741 | if (bootp_try == 0) |
Joe Hershberger | 797f2c5 | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 742 | srand_mac(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 743 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 744 | if (bootp_try <= 2) /* Start with max 1024 * 1ms */ |
| 745 | rand_ms = rand() >> (22 - bootp_try); |
Joe Hershberger | 797f2c5 | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 746 | else /* After 3rd BOOTP request max 8192 * 1ms */ |
| 747 | rand_ms = rand() >> 19; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 748 | |
Joe Hershberger | 797f2c5 | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 749 | printf("Random delay: %ld ms...\n", rand_ms); |
Pavel Machek | 764c29d | 2014-07-11 11:39:37 +0200 | [diff] [blame] | 750 | mdelay(rand_ms); |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 751 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 752 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
| 753 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 754 | printf("BOOTP broadcast %d\n", ++bootp_try); |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 755 | pkt = net_tx_packet; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 756 | memset((void *)pkt, 0, PKTSIZE); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 757 | |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 758 | eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP); |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 759 | pkt += eth_hdr_size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 760 | |
| 761 | /* |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 762 | * Next line results in incorrect packet size being transmitted, |
| 763 | * resulting in errors in some DHCP servers, reporting missing bytes. |
| 764 | * Size must be set in packet header after extension length has been |
| 765 | * determined. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 766 | * C. Hallinan, DS4.COM, Inc. |
| 767 | */ |
Joe Hershberger | 2ed5b49 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 768 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 769 | sizeof (struct bootp_hdr)); */ |
Joe Hershberger | 2ed5b49 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 770 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
Joe Hershberger | 6fe8b45 | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 771 | pkt += IP_UDP_HDR_SIZE; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 772 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 773 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 774 | bp->bp_op = OP_BOOTREQUEST; |
| 775 | bp->bp_htype = HWT_ETHER; |
| 776 | bp->bp_hlen = HWL_ETHER; |
| 777 | bp->bp_hops = 0; |
Stefan Brüns | 2eb2556 | 2015-08-27 23:57:18 +0200 | [diff] [blame] | 778 | /* |
| 779 | * according to RFC1542, should be 0 on first request, secs since |
| 780 | * first request otherwise |
| 781 | */ |
| 782 | bp->bp_secs = htons(get_timer(bootp_start) / 1000); |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 783 | zero_ip.s_addr = 0; |
| 784 | net_write_ip(&bp->bp_ciaddr, zero_ip); |
| 785 | net_write_ip(&bp->bp_yiaddr, zero_ip); |
| 786 | net_write_ip(&bp->bp_siaddr, zero_ip); |
| 787 | net_write_ip(&bp->bp_giaddr, zero_ip); |
Joe Hershberger | 8ecdbed | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 788 | memcpy(bp->bp_chaddr, net_ethaddr, 6); |
Joe Hershberger | 290c899 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 789 | copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 790 | |
| 791 | /* Request additional information from the BOOTP/DHCP server */ |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 792 | #if defined(CONFIG_CMD_DHCP) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 793 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_DISCOVER, zero_ip, |
| 794 | zero_ip); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 795 | #else |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 796 | extlen = bootp_extended((u8 *)bp->bp_vend); |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 797 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 798 | |
| 799 | /* |
| 800 | * Bootp ID is the lower 4 bytes of our ethernet address |
Bartlomiej Sieka | 5666846 | 2008-10-01 15:26:28 +0200 | [diff] [blame] | 801 | * plus the current time in ms. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 802 | */ |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 803 | bootp_id = ((u32)net_ethaddr[2] << 24) |
| 804 | | ((u32)net_ethaddr[3] << 16) |
| 805 | | ((u32)net_ethaddr[4] << 8) |
| 806 | | (u32)net_ethaddr[5]; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 807 | bootp_id += get_timer(0); |
| 808 | bootp_id = htonl(bootp_id); |
| 809 | bootp_add_id(bootp_id); |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 810 | net_copy_u32(&bp->bp_id, &bootp_id); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 811 | |
| 812 | /* |
| 813 | * Calculate proper packet lengths taking into account the |
| 814 | * variable size of the options field |
| 815 | */ |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 816 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
| 817 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 818 | bcast_ip.s_addr = 0xFFFFFFFFL; |
| 819 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 820 | net_set_timeout_handler(bootp_timeout, bootp_timeout_handler); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 821 | |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 822 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 823 | dhcp_state = SELECTING; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 824 | net_set_udp_handler(dhcp_handler); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 825 | #else |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 826 | net_set_udp_handler(bootp_handler); |
Jon Loeliger | a9807e5 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 827 | #endif |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 828 | net_send_packet(net_tx_packet, pktlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 829 | } |
| 830 | |
Jon Loeliger | 54f35c2 | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 831 | #if defined(CONFIG_CMD_DHCP) |
Stefan Brüns | 79f724c | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 832 | static void dhcp_process_options(uchar *popt, uchar *end) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 833 | { |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 834 | int oplen, size; |
Wolfgang Denk | 2b18422 | 2009-09-11 09:05:32 +0200 | [diff] [blame] | 835 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
| 836 | int *to_ptr; |
| 837 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 838 | |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 839 | while (popt < end && *popt != 0xff) { |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 840 | oplen = *(popt + 1); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 841 | switch (*popt) { |
Stefan Brüns | 4431829 | 2015-08-28 10:15:54 +0200 | [diff] [blame] | 842 | case 0: |
| 843 | oplen = -1; /* Pad omits len byte */ |
| 844 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 845 | case 1: |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 846 | net_copy_ip(&net_netmask, (popt + 2)); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 847 | break; |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 848 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 849 | case 2: /* Time offset */ |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 850 | to_ptr = &net_ntp_time_offset; |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 851 | net_copy_u32((u32 *)to_ptr, (u32 *)(popt + 2)); |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 852 | net_ntp_time_offset = ntohl(net_ntp_time_offset); |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 853 | break; |
| 854 | #endif |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 855 | case 3: |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 856 | net_copy_ip(&net_gateway, (popt + 2)); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 857 | break; |
| 858 | case 6: |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 859 | net_copy_ip(&net_dns_server, (popt + 2)); |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 860 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 861 | if (*(popt + 1) > 4) |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 862 | net_copy_ip(&net_dns_server2, (popt + 2 + 4)); |
stroese | e0aadfb | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 863 | #endif |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 864 | break; |
| 865 | case 12: |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 866 | size = truncate_sz("Host Name", |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 867 | sizeof(net_hostname), oplen); |
| 868 | memcpy(&net_hostname, popt + 2, size); |
| 869 | net_hostname[size] = 0; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 870 | break; |
| 871 | case 15: /* Ignore Domain Name Option */ |
| 872 | break; |
| 873 | case 17: |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 874 | size = truncate_sz("Root Path", |
Joe Hershberger | 6d23643 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 875 | sizeof(net_root_path), oplen); |
| 876 | memcpy(&net_root_path, popt + 2, size); |
| 877 | net_root_path[size] = 0; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 878 | break; |
Brian Rzycki | 5a672a2 | 2012-09-11 09:22:53 +0000 | [diff] [blame] | 879 | case 28: /* Ignore Broadcast Address Option */ |
| 880 | break; |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 881 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 882 | case 42: /* NTP server IP */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 883 | net_copy_ip(&net_ntp_server, (popt + 2)); |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 884 | break; |
| 885 | #endif |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 886 | case 51: |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 887 | net_copy_u32(&dhcp_leasetime, (u32 *)(popt + 2)); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 888 | break; |
Stefan Brüns | 345cb83 | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 889 | case 52: |
| 890 | dhcp_option_overload = popt[2]; |
| 891 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 892 | case 53: /* Ignore Message Type Option */ |
| 893 | break; |
| 894 | case 54: |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 895 | net_copy_ip(&dhcp_server_ip, (popt + 2)); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 896 | break; |
| 897 | case 58: /* Ignore Renewal Time Option */ |
| 898 | break; |
| 899 | case 59: /* Ignore Rebinding Time Option */ |
| 900 | break; |
Wolfgang Denk | 012429c | 2006-03-12 18:26:46 +0100 | [diff] [blame] | 901 | case 66: /* Ignore TFTP server name */ |
| 902 | break; |
Stefan Brüns | 345cb83 | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 903 | case 67: /* Bootfile option */ |
Alexander Graf | f43bf5d | 2018-06-15 10:29:27 +0200 | [diff] [blame] | 904 | if (!net_boot_file_name_explicit) { |
| 905 | size = truncate_sz("Bootfile", |
| 906 | sizeof(net_boot_file_name), |
| 907 | oplen); |
| 908 | memcpy(&net_boot_file_name, popt + 2, size); |
| 909 | net_boot_file_name[size] = 0; |
| 910 | } |
Wolfgang Denk | 012429c | 2006-03-12 18:26:46 +0100 | [diff] [blame] | 911 | break; |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 912 | default: |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 913 | #if defined(CONFIG_BOOTP_VENDOREX) |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 914 | if (dhcp_vendorex_proc(popt)) |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 915 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 916 | #endif |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 917 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 918 | " %d\n", *popt); |
wdenk | 29e7f5a | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 919 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 920 | } |
| 921 | popt += oplen + 2; /* Process next option */ |
| 922 | } |
| 923 | } |
| 924 | |
Stefan Brüns | 79f724c | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 925 | static void dhcp_packet_process_options(struct bootp_hdr *bp) |
| 926 | { |
| 927 | uchar *popt = (uchar *)&bp->bp_vend[4]; |
| 928 | uchar *end = popt + BOOTP_HDR_SIZE; |
| 929 | |
| 930 | if (net_read_u32((u32 *)&bp->bp_vend[0]) != htonl(BOOTP_VENDOR_MAGIC)) |
| 931 | return; |
| 932 | |
| 933 | dhcp_option_overload = 0; |
| 934 | |
| 935 | /* |
| 936 | * The 'options' field MUST be interpreted first, 'file' next, |
| 937 | * 'sname' last. |
| 938 | */ |
| 939 | dhcp_process_options(popt, end); |
| 940 | |
| 941 | if (dhcp_option_overload & OVERLOAD_FILE) { |
| 942 | popt = (uchar *)bp->bp_file; |
| 943 | end = popt + sizeof(bp->bp_file); |
| 944 | dhcp_process_options(popt, end); |
| 945 | } |
| 946 | |
| 947 | if (dhcp_option_overload & OVERLOAD_SNAME) { |
| 948 | popt = (uchar *)bp->bp_sname; |
| 949 | end = popt + sizeof(bp->bp_sname); |
| 950 | dhcp_process_options(popt, end); |
| 951 | } |
| 952 | } |
| 953 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 954 | static int dhcp_message_type(unsigned char *popt) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 955 | { |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 956 | if (net_read_u32((u32 *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 957 | return -1; |
| 958 | |
| 959 | popt += 4; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 960 | while (*popt != 0xff) { |
| 961 | if (*popt == 53) /* DHCP Message Type */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 962 | return *(popt + 2); |
Stefan Brüns | 4431829 | 2015-08-28 10:15:54 +0200 | [diff] [blame] | 963 | if (*popt == 0) { |
| 964 | /* Pad */ |
| 965 | popt += 1; |
| 966 | } else { |
| 967 | /* Scan through all options */ |
| 968 | popt += *(popt + 1) + 2; |
| 969 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 970 | } |
| 971 | return -1; |
| 972 | } |
| 973 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 974 | static void dhcp_send_request_packet(struct bootp_hdr *bp_offer) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 975 | { |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 976 | uchar *pkt, *iphdr; |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 977 | struct bootp_hdr *bp; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 978 | int pktlen, iplen, extlen; |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 979 | int eth_hdr_size; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 980 | struct in_addr offered_ip; |
| 981 | struct in_addr zero_ip; |
| 982 | struct in_addr bcast_ip; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 983 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 984 | debug("dhcp_send_request_packet: Sending DHCPREQUEST\n"); |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 985 | pkt = net_tx_packet; |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 986 | memset((void *)pkt, 0, PKTSIZE); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 987 | |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 988 | eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP); |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 989 | pkt += eth_hdr_size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 990 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 991 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
Joe Hershberger | 6fe8b45 | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 992 | pkt += IP_UDP_HDR_SIZE; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 993 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 994 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 995 | bp->bp_op = OP_BOOTREQUEST; |
| 996 | bp->bp_htype = HWT_ETHER; |
| 997 | bp->bp_hlen = HWL_ETHER; |
| 998 | bp->bp_hops = 0; |
Stefan Brüns | 2eb2556 | 2015-08-27 23:57:18 +0200 | [diff] [blame] | 999 | bp->bp_secs = htons(get_timer(bootp_start) / 1000); |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1000 | /* Do not set the client IP, your IP, or server IP yet, since it |
| 1001 | * hasn't been ACK'ed by the server yet */ |
Justin Flammia | 01f256b | 2007-10-29 17:40:35 -0400 | [diff] [blame] | 1002 | |
Wolfgang Denk | 8a933fb | 2006-10-12 00:01:08 +0200 | [diff] [blame] | 1003 | /* |
Wolfgang Denk | 68e83a8 | 2006-10-09 01:26:14 +0200 | [diff] [blame] | 1004 | * RFC3046 requires Relay Agents to discard packets with |
| 1005 | * nonzero and offered giaddr |
| 1006 | */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1007 | zero_ip.s_addr = 0; |
| 1008 | net_write_ip(&bp->bp_giaddr, zero_ip); |
Wolfgang Denk | 68e83a8 | 2006-10-09 01:26:14 +0200 | [diff] [blame] | 1009 | |
Joe Hershberger | 8ecdbed | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 1010 | memcpy(bp->bp_chaddr, net_ethaddr, 6); |
Alexandre Messier | ad28a31 | 2016-01-28 11:19:02 -0500 | [diff] [blame] | 1011 | copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1012 | |
| 1013 | /* |
| 1014 | * ID is the id of the OFFER packet |
| 1015 | */ |
| 1016 | |
Sergey Temerkhanov | bf5ad64 | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 1017 | net_copy_u32(&bp->bp_id, &bp_offer->bp_id); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1018 | |
| 1019 | /* |
| 1020 | * Copy options from OFFER packet if present |
| 1021 | */ |
Justin Flammia | 01f256b | 2007-10-29 17:40:35 -0400 | [diff] [blame] | 1022 | |
| 1023 | /* Copy offered IP into the parameters request list */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1024 | net_copy_ip(&offered_ip, &bp_offer->bp_yiaddr); |
| 1025 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_REQUEST, |
| 1026 | dhcp_server_ip, offered_ip); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1027 | |
Joe Hershberger | db3e6e4 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 1028 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
| 1029 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1030 | bcast_ip.s_addr = 0xFFFFFFFFL; |
| 1031 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1032 | |
Joe Hershberger | b1e9476 | 2012-05-23 07:59:11 +0000 | [diff] [blame] | 1033 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
Joe Hershberger | a8ca4f6 | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 1034 | net_send_packet(net_tx_packet, pktlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | * Handle DHCP received packets. |
| 1039 | */ |
Joe Hershberger | 5874dec | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1040 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 1041 | unsigned src, unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1042 | { |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1043 | struct bootp_hdr *bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1044 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1045 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1046 | src, dest, len, dhcp_state); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1047 | |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1048 | /* Filter out pkts we don't want */ |
Stefan Brüns | a48cd93 | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 1049 | if (check_reply_packet(pkt, dest, src, len)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1050 | return; |
| 1051 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1052 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: " |
| 1053 | "%d\n", src, dest, len, dhcp_state); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1054 | |
Lyle Franklin | 73fcbc7 | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1055 | if (net_read_ip(&bp->bp_yiaddr).s_addr == 0) { |
| 1056 | #if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 1057 | store_bootp_params(bp); |
| 1058 | #endif |
Peng Fan | 67e72e9 | 2016-01-07 15:28:23 +0800 | [diff] [blame] | 1059 | return; |
Lyle Franklin | 73fcbc7 | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1060 | } |
Peng Fan | 67e72e9 | 2016-01-07 15:28:23 +0800 | [diff] [blame] | 1061 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1062 | switch (dhcp_state) { |
| 1063 | case SELECTING: |
| 1064 | /* |
| 1065 | * Wait an appropriate time for any potential DHCPOFFER packets |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1066 | * to arrive. Then select one, and generate DHCPREQUEST |
| 1067 | * response. If filename is in format we recognize, assume it |
| 1068 | * is a valid OFFER from a server we want. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1069 | */ |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1070 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1071 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1072 | if (strncmp(bp->bp_file, |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1073 | CONFIG_SYS_BOOTFILE_PREFIX, |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1074 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1075 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
Sean Anderson | 123d900 | 2023-10-14 16:47:53 -0400 | [diff] [blame] | 1076 | if (CONFIG_IS_ENABLED(UNIT_TEST) && |
| 1077 | dhcp_message_type((u8 *)bp->bp_vend) == -1) { |
| 1078 | debug("got BOOTP response; transitioning to BOUND\n"); |
| 1079 | goto dhcp_got_bootp; |
| 1080 | } |
Stefan Brüns | 79f724c | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 1081 | dhcp_packet_process_options(bp); |
Jan Kiszka | f138982 | 2022-10-14 18:10:06 +0200 | [diff] [blame] | 1082 | if (CONFIG_IS_ENABLED(EFI_LOADER) && |
Simon Glass | 8ce7c82 | 2023-02-05 15:40:20 -0700 | [diff] [blame] | 1083 | IS_ENABLED(CONFIG_NETDEVICES)) |
Jan Kiszka | f138982 | 2022-10-14 18:10:06 +0200 | [diff] [blame] | 1084 | efi_net_set_dhcp_ack(pkt, len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1085 | |
Lyle Franklin | 73fcbc7 | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1086 | #if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 1087 | if (!net_server_ip.s_addr) |
| 1088 | udelay(CONFIG_SERVERIP_FROM_PROXYDHCP_DELAY_MS * |
| 1089 | 1000); |
| 1090 | #endif /* CONFIG_SERVERIP_FROM_PROXYDHCP */ |
| 1091 | |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1092 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1093 | dhcp_state = REQUESTING; |
stroese | 5fa6e90 | 2003-04-10 13:26:44 +0000 | [diff] [blame] | 1094 | |
Joe Hershberger | c80b41b0 | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1095 | net_set_timeout_handler(5000, bootp_timeout_handler); |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1096 | dhcp_send_request_packet(bp); |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1097 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1098 | } |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1099 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1100 | |
| 1101 | return; |
| 1102 | break; |
| 1103 | case REQUESTING: |
Robin Getz | 9e0a4d6 | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1104 | debug("DHCP State: REQUESTING\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1105 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1106 | if (dhcp_message_type((u8 *)bp->bp_vend) == DHCP_ACK) { |
Sean Anderson | 123d900 | 2023-10-14 16:47:53 -0400 | [diff] [blame] | 1107 | dhcp_got_bootp: |
Stefan Brüns | 79f724c | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 1108 | dhcp_packet_process_options(bp); |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1109 | /* Store net params from reply */ |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1110 | store_net_params(bp); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1111 | dhcp_state = BOUND; |
Thierry Reding | 8977cda | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 1112 | printf("DHCP client bound to address %pI4 (%lu ms)\n", |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1113 | &net_ip, get_timer(bootp_start)); |
Stefan Brüns | 4c60e4a | 2015-08-30 17:47:17 +0200 | [diff] [blame] | 1114 | net_set_timeout_handler(0, (thand_f *)0); |
Simon Glass | 768cbf0 | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 1115 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1116 | "bootp_stop"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1117 | |
Simon Glass | 5234ad1 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 1118 | net_auto_load(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1119 | return; |
| 1120 | } |
| 1121 | break; |
Remy Bohmer | 03a4449 | 2008-08-20 11:30:28 +0200 | [diff] [blame] | 1122 | case BOUND: |
| 1123 | /* DHCP client bound to address */ |
| 1124 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1125 | default: |
Joe Hershberger | 8f4b135 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1126 | puts("DHCP: INVALID STATE\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1127 | break; |
| 1128 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1129 | } |
| 1130 | |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1131 | void dhcp_request(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1132 | { |
Joe Hershberger | 2fe81a5 | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1133 | bootp_request(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1134 | } |
Wolfgang Denk | f7a7f08 | 2007-11-03 23:09:27 +0100 | [diff] [blame] | 1135 | #endif /* CONFIG_CMD_DHCP */ |