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 | 232c150 | 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 | 52f2423 | 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 | 9eef56d | 2019-08-01 09:46:48 -0600 | [diff] [blame] | 14 | #include <env.h> |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 15 | #include <efi_loader.h> |
Simon Glass | f7ae49f | 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 | 90526e9 | 2020-05-10 11:39:56 -0600 | [diff] [blame] | 18 | #include <rand.h> |
Simon Glass | ba06b3c | 2020-05-10 11:39:52 -0600 | [diff] [blame] | 19 | #include <uuid.h> |
Simon Glass | c05ed00 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 20 | #include <linux/delay.h> |
Lukasz Majewski | 3469695 | 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 | 2d8d190 | 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 | db7720b | 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 | 3090b7e3 | 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 | f59be6e | 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 | 01d1b99 | 2022-03-11 09:12:02 -0500 | [diff] [blame] | 34 | * counter of fixed-length timeout periods. CONFIG_NET_RETRY_COUNT represents |
Stephen Warren | f59be6e | 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 | 01d1b99 | 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 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 44 | #define PORT_BOOTPS 67 /* BOOTP server UDP port */ |
| 45 | #define PORT_BOOTPC 68 /* BOOTP client UDP port */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 46 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 47 | #ifndef CONFIG_DHCP_MIN_EXT_LEN /* minimal length of extension list */ |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 48 | #define CONFIG_DHCP_MIN_EXT_LEN 64 |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 49 | #endif |
| 50 | |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 51 | #ifndef CONFIG_BOOTP_ID_CACHE_SIZE |
| 52 | #define CONFIG_BOOTP_ID_CACHE_SIZE 4 |
| 53 | #endif |
| 54 | |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 55 | u32 bootp_ids[CONFIG_BOOTP_ID_CACHE_SIZE]; |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 56 | unsigned int bootp_num_ids; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 57 | int bootp_try; |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 58 | ulong bootp_start; |
| 59 | ulong bootp_timeout; |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 60 | char net_nis_domain[32] = {0,}; /* Our NIS domain */ |
| 61 | char net_hostname[32] = {0,}; /* Our hostname */ |
Andre Kalb | 5e6e41b | 2022-01-28 09:40:32 +0100 | [diff] [blame] | 62 | char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN] = {0,}; /* Our bootpath */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 63 | |
Alexandre Messier | 50768f5 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 64 | static ulong time_taken_max; |
| 65 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 66 | #if defined(CONFIG_CMD_DHCP) |
Kim Phillips | 0637059 | 2012-10-29 13:34:33 +0000 | [diff] [blame] | 67 | static dhcp_state_t dhcp_state = INIT; |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 68 | static u32 dhcp_leasetime; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 69 | static struct in_addr dhcp_server_ip; |
Stefan Brüns | ec87b1b | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 70 | static u8 dhcp_option_overload; |
| 71 | #define OVERLOAD_FILE 1 |
| 72 | #define OVERLOAD_SNAME 2 |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 73 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 74 | unsigned src, unsigned len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 75 | |
| 76 | /* For Debug */ |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 77 | #if 0 |
| 78 | static char *dhcpmsg2str(int type) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 79 | { |
| 80 | switch (type) { |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 81 | case 1: return "DHCPDISCOVER"; break; |
| 82 | case 2: return "DHCPOFFER"; break; |
| 83 | case 3: return "DHCPREQUEST"; break; |
| 84 | case 4: return "DHCPDECLINE"; break; |
| 85 | case 5: return "DHCPACK"; break; |
| 86 | case 6: return "DHCPNACK"; break; |
| 87 | case 7: return "DHCPRELEASE"; break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 88 | default: return "UNKNOWN/INVALID MSG TYPE"; break; |
| 89 | } |
| 90 | } |
wdenk | 3e38691 | 2003-04-05 00:53:31 +0000 | [diff] [blame] | 91 | #endif |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 92 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 93 | |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 94 | static void bootp_add_id(ulong id) |
| 95 | { |
| 96 | if (bootp_num_ids >= ARRAY_SIZE(bootp_ids)) { |
| 97 | size_t size = sizeof(bootp_ids) - sizeof(id); |
| 98 | |
| 99 | memmove(bootp_ids, &bootp_ids[1], size); |
| 100 | bootp_ids[bootp_num_ids - 1] = id; |
| 101 | } else { |
| 102 | bootp_ids[bootp_num_ids] = id; |
| 103 | bootp_num_ids++; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | static bool bootp_match_id(ulong id) |
| 108 | { |
| 109 | unsigned int i; |
| 110 | |
| 111 | for (i = 0; i < bootp_num_ids; i++) |
| 112 | if (bootp_ids[i] == id) |
| 113 | return true; |
| 114 | |
| 115 | return false; |
| 116 | } |
| 117 | |
Stefan Brüns | 867d6ae | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 118 | static int check_reply_packet(uchar *pkt, unsigned dest, unsigned src, |
| 119 | unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 120 | { |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 121 | struct bootp_hdr *bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 122 | int retval = 0; |
| 123 | |
| 124 | if (dest != PORT_BOOTPC || src != PORT_BOOTPS) |
| 125 | retval = -1; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 126 | else if (len < sizeof(struct bootp_hdr) - OPT_FIELD_SIZE) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 127 | retval = -2; |
Stefan Brüns | 867d6ae | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 128 | else if (bp->bp_op != OP_BOOTREPLY) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 129 | retval = -3; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 130 | else if (bp->bp_htype != HWT_ETHER) |
| 131 | retval = -4; |
| 132 | else if (bp->bp_hlen != HWL_ETHER) |
| 133 | retval = -5; |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 134 | else if (!bootp_match_id(net_read_u32(&bp->bp_id))) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 135 | retval = -6; |
Anton Persson | 214cc90 | 2016-03-17 09:38:21 +0100 | [diff] [blame] | 136 | else if (memcmp(bp->bp_chaddr, net_ethaddr, HWL_ETHER) != 0) |
| 137 | retval = -7; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 138 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 139 | debug("Filtering pkt = %d\n", retval); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 140 | |
| 141 | return retval; |
| 142 | } |
| 143 | |
Lyle Franklin | c8e251f | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 144 | static void store_bootp_params(struct bootp_hdr *bp) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 145 | { |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 146 | struct in_addr tmp_ip; |
Alexander Graf | bdce340 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 147 | bool overwrite_serverip = true; |
| 148 | |
Simon Glass | 4340753 | 2021-12-18 11:27:52 -0700 | [diff] [blame] | 149 | if (IS_ENABLED(CONFIG_BOOTP_SERVERIP)) |
| 150 | return; |
| 151 | |
Alexander Graf | bdce340 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 152 | #if defined(CONFIG_BOOTP_PREFER_SERVERIP) |
| 153 | overwrite_serverip = false; |
| 154 | #endif |
Joe Hershberger | 1752f0f | 2012-05-23 07:59:18 +0000 | [diff] [blame] | 155 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 156 | net_copy_ip(&tmp_ip, &bp->bp_siaddr); |
Alexander Graf | bdce340 | 2018-06-15 10:29:28 +0200 | [diff] [blame] | 157 | if (tmp_ip.s_addr != 0 && (overwrite_serverip || !net_server_ip.s_addr)) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 158 | net_copy_ip(&net_server_ip, &bp->bp_siaddr); |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 159 | memcpy(net_server_ethaddr, |
| 160 | ((struct ethernet_hdr *)net_rx_packet)->et_src, 6); |
Stefan Brüns | ec87b1b | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 161 | if ( |
| 162 | #if defined(CONFIG_CMD_DHCP) |
| 163 | !(dhcp_option_overload & OVERLOAD_FILE) && |
| 164 | #endif |
Alexander Graf | 449312c | 2018-06-15 10:29:27 +0200 | [diff] [blame] | 165 | (strlen(bp->bp_file) > 0) && |
| 166 | !net_boot_file_name_explicit) { |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 167 | copy_filename(net_boot_file_name, bp->bp_file, |
| 168 | sizeof(net_boot_file_name)); |
Stefan Brüns | ec87b1b | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 169 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 170 | |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 171 | debug("net_boot_file_name: %s\n", net_boot_file_name); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 172 | |
| 173 | /* Propagate to environment: |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 174 | * don't delete exising entry when BOOTP / DHCP reply does |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 175 | * not contain a new value |
| 176 | */ |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 177 | if (*net_boot_file_name) |
Simon Glass | 382bee5 | 2017-08-03 12:22:09 -0600 | [diff] [blame] | 178 | env_set("bootfile", net_boot_file_name); |
Lyle Franklin | c8e251f | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 179 | } |
| 180 | |
| 181 | /* |
| 182 | * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet |
| 183 | */ |
| 184 | static void store_net_params(struct bootp_hdr *bp) |
| 185 | { |
| 186 | #if !defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 187 | store_bootp_params(bp); |
| 188 | #endif |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 189 | net_copy_ip(&net_ip, &bp->bp_yiaddr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 190 | } |
| 191 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 192 | static int truncate_sz(const char *name, int maxlen, int curlen) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 193 | { |
| 194 | if (curlen >= maxlen) { |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 195 | printf("*** WARNING: %s is too long (%d - max: %d)" |
| 196 | " - truncated\n", name, curlen, maxlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 197 | curlen = maxlen - 1; |
| 198 | } |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 199 | return curlen; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 200 | } |
| 201 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 202 | #if !defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 203 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 204 | static void bootp_process_vendor_field(u8 *ext) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 205 | { |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 206 | int size = *(ext + 1); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 207 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 208 | debug("[BOOTP] Processing extension %d... (%d bytes)\n", *ext, |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 209 | *(ext + 1)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 210 | |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 211 | net_boot_file_expected_size_in_blocks = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 212 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 213 | switch (*ext) { |
| 214 | /* Fixed length fields */ |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 215 | case 1: /* Subnet mask */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 216 | if (net_netmask.s_addr == 0) |
| 217 | net_copy_ip(&net_netmask, (struct in_addr *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 218 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 219 | case 2: /* Time offset - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 220 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 221 | /* Variable length fields */ |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 222 | case 3: /* Gateways list */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 223 | if (net_gateway.s_addr == 0) |
| 224 | net_copy_ip(&net_gateway, (struct in_addr *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 225 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 226 | case 4: /* Time server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 227 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 228 | case 5: /* IEN-116 name server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 229 | break; |
| 230 | case 6: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 231 | if (net_dns_server.s_addr == 0) |
| 232 | net_copy_ip(&net_dns_server, |
| 233 | (struct in_addr *)(ext + 2)); |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 234 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 235 | if ((net_dns_server2.s_addr == 0) && (size > 4)) |
| 236 | net_copy_ip(&net_dns_server2, |
| 237 | (struct in_addr *)(ext + 2 + 4)); |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 238 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 239 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 240 | case 7: /* Log server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 241 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 242 | case 8: /* Cookie/Quote server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 243 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 244 | case 9: /* LPR server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 245 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 246 | case 10: /* Impress server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 247 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 248 | case 11: /* RPL server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 249 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 250 | case 12: /* Host name */ |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 251 | if (net_hostname[0] == 0) { |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 252 | size = truncate_sz("Host Name", |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 253 | sizeof(net_hostname), size); |
| 254 | memcpy(&net_hostname, ext + 2, size); |
| 255 | net_hostname[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 256 | } |
| 257 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 258 | case 13: /* Boot file size */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 259 | if (size == 2) |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 260 | net_boot_file_expected_size_in_blocks = |
| 261 | ntohs(*(ushort *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 262 | else if (size == 4) |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 263 | net_boot_file_expected_size_in_blocks = |
| 264 | ntohl(*(ulong *)(ext + 2)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 265 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 266 | case 14: /* Merit dump file - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 267 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 268 | case 15: /* Domain name - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 269 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 270 | case 16: /* Swap server - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 271 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 272 | case 17: /* Root path */ |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 273 | if (net_root_path[0] == 0) { |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 274 | size = truncate_sz("Root Path", |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 275 | sizeof(net_root_path), size); |
| 276 | memcpy(&net_root_path, ext + 2, size); |
| 277 | net_root_path[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 278 | } |
| 279 | break; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 280 | case 18: /* Extension path - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 281 | /* |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 282 | * This can be used to send the information of the |
| 283 | * vendor area in another file that the client can |
| 284 | * access via TFTP. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 285 | */ |
| 286 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 287 | /* IP host layer fields */ |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 288 | case 40: /* NIS Domain name */ |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 289 | if (net_nis_domain[0] == 0) { |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 290 | size = truncate_sz("NIS Domain Name", |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 291 | sizeof(net_nis_domain), size); |
| 292 | memcpy(&net_nis_domain, ext + 2, size); |
| 293 | net_nis_domain[size] = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 294 | } |
| 295 | break; |
Luuk Paulussen | 09e3a67 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 296 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
| 297 | case 42: /* NTP server IP */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 298 | net_copy_ip(&net_ntp_server, (struct in_addr *)(ext + 2)); |
Luuk Paulussen | 09e3a67 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 299 | break; |
| 300 | #endif |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 301 | /* Application layer fields */ |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 302 | case 43: /* Vendor specific info - Not yet supported */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 303 | /* |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 304 | * Binary information to exchange specific |
| 305 | * product information. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 306 | */ |
| 307 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 308 | /* Reserved (custom) fields (128..254) */ |
| 309 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 310 | } |
| 311 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 312 | static void bootp_process_vendor(u8 *ext, int size) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 313 | { |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 314 | u8 *end = ext + size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 315 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 316 | debug("[BOOTP] Checking extension (%d bytes)...\n", size); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 317 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 318 | while ((ext < end) && (*ext != 0xff)) { |
| 319 | if (*ext == 0) { |
| 320 | ext++; |
| 321 | } else { |
| 322 | u8 *opt = ext; |
| 323 | |
| 324 | ext += ext[1] + 2; |
| 325 | if (ext <= end) |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 326 | bootp_process_vendor_field(opt); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 327 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 328 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 329 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 330 | debug("[BOOTP] Received fields:\n"); |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 331 | if (net_netmask.s_addr) |
| 332 | debug("net_netmask : %pI4\n", &net_netmask); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 333 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 334 | if (net_gateway.s_addr) |
| 335 | debug("net_gateway : %pI4", &net_gateway); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 336 | |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 337 | if (net_boot_file_expected_size_in_blocks) |
| 338 | debug("net_boot_file_expected_size_in_blocks : %d\n", |
| 339 | net_boot_file_expected_size_in_blocks); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 340 | |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 341 | if (net_hostname[0]) |
| 342 | debug("net_hostname : %s\n", net_hostname); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 343 | |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 344 | if (net_root_path[0]) |
| 345 | debug("net_root_path : %s\n", net_root_path); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 346 | |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 347 | if (net_nis_domain[0]) |
| 348 | debug("net_nis_domain : %s\n", net_nis_domain); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 349 | |
Luuk Paulussen | 09e3a67 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 350 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
Chris Packham | 4b4dc52 | 2018-05-03 20:19:03 +1200 | [diff] [blame] | 351 | if (net_ntp_server.s_addr) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 352 | debug("net_ntp_server : %pI4\n", &net_ntp_server); |
Luuk Paulussen | 09e3a67 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 353 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 354 | } |
Simon Glass | 0934986 | 2011-06-13 16:13:12 -0700 | [diff] [blame] | 355 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 356 | /* |
| 357 | * Handle a BOOTP received packet. |
| 358 | */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 359 | static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 360 | unsigned src, unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 361 | { |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 362 | struct bootp_hdr *bp; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 363 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 364 | debug("got BOOTP packet (src=%d, dst=%d, len=%d want_len=%zu)\n", |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 365 | src, dest, len, sizeof(struct bootp_hdr)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 366 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 367 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 368 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 369 | /* Filter out pkts we don't want */ |
Stefan Brüns | 867d6ae | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 370 | if (check_reply_packet(pkt, dest, src, len)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 371 | return; |
| 372 | |
| 373 | /* |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 374 | * Got a good BOOTP reply. Copy the data into our variables. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 375 | */ |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 376 | #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE) |
| 377 | status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_OFF); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 378 | #endif |
| 379 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 380 | store_net_params(bp); /* Store net parameters from reply */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 381 | |
| 382 | /* Retrieve extended information (we must parse the vendor area) */ |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 383 | if (net_read_u32((u32 *)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC)) |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 384 | bootp_process_vendor((uchar *)&bp->bp_vend[4], len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 385 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 386 | net_set_timeout_handler(0, (thand_f *)0); |
Simon Glass | 573f14f | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 387 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, "bootp_stop"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 388 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 389 | debug("Got good BOOTP\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 390 | |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 391 | net_auto_load(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 392 | } |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 393 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 394 | |
| 395 | /* |
| 396 | * Timeout on BOOTP/DHCP request. |
| 397 | */ |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 398 | static void bootp_timeout_handler(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 399 | { |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 400 | ulong time_taken = get_timer(bootp_start); |
| 401 | |
Alexandre Messier | 50768f5 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 402 | if (time_taken >= time_taken_max) { |
Joe Hershberger | 2c00e09 | 2012-05-23 07:59:19 +0000 | [diff] [blame] | 403 | #ifdef CONFIG_BOOTP_MAY_FAIL |
Joe Hershberger | 2099b9f | 2017-11-07 18:13:40 -0800 | [diff] [blame] | 404 | char *ethrotate; |
| 405 | |
| 406 | ethrotate = env_get("ethrotate"); |
| 407 | if ((ethrotate && strcmp(ethrotate, "no") == 0) || |
| 408 | net_restart_wrap) { |
| 409 | puts("\nRetry time exceeded\n"); |
| 410 | net_set_state(NETLOOP_FAIL); |
| 411 | } else |
Joe Hershberger | 2c00e09 | 2012-05-23 07:59:19 +0000 | [diff] [blame] | 412 | #endif |
Joe Hershberger | 2099b9f | 2017-11-07 18:13:40 -0800 | [diff] [blame] | 413 | { |
| 414 | puts("\nRetry time exceeded; starting again\n"); |
| 415 | net_start_again(); |
| 416 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 417 | } else { |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 418 | bootp_timeout *= 2; |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 419 | if (bootp_timeout > 2000) |
| 420 | bootp_timeout = 2000; |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 421 | net_set_timeout_handler(bootp_timeout, bootp_timeout_handler); |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 422 | bootp_request(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 423 | } |
| 424 | } |
| 425 | |
Ilya Yanok | 9ace17c | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 426 | #define put_vci(e, str) \ |
| 427 | do { \ |
| 428 | size_t vci_strlen = strlen(str); \ |
| 429 | *e++ = 60; /* Vendor Class Identifier */ \ |
| 430 | *e++ = vci_strlen; \ |
| 431 | memcpy(e, str, vci_strlen); \ |
| 432 | e += vci_strlen; \ |
| 433 | } while (0) |
| 434 | |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 435 | static u8 *add_vci(u8 *e) |
| 436 | { |
Alexander Graf | 20898ea | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 437 | char *vci = NULL; |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 438 | char *env_vci = env_get("bootp_vci"); |
Alexander Graf | 20898ea | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 439 | |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 440 | #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING) |
Alexander Graf | 20898ea | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 441 | vci = CONFIG_SPL_NET_VCI_STRING; |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 442 | #elif defined(CONFIG_BOOTP_VCI_STRING) |
Alexander Graf | 20898ea | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 443 | vci = CONFIG_BOOTP_VCI_STRING; |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 444 | #endif |
| 445 | |
Alexander Graf | 20898ea | 2016-05-06 21:01:07 +0200 | [diff] [blame] | 446 | if (env_vci) |
| 447 | vci = env_vci; |
| 448 | |
| 449 | if (vci) |
| 450 | put_vci(e, vci); |
| 451 | |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 452 | return e; |
| 453 | } |
| 454 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 455 | /* |
| 456 | * Initialize BOOTP extension fields in the request. |
| 457 | */ |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 458 | #if defined(CONFIG_CMD_DHCP) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 459 | static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip, |
| 460 | struct in_addr requested_ip) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 461 | { |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 462 | u8 *start = e; |
| 463 | u8 *cnt; |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 464 | #ifdef CONFIG_LIB_UUID |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 465 | char *uuid; |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 466 | #endif |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 467 | int clientarch = -1; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 468 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 469 | #if defined(CONFIG_BOOTP_VENDOREX) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 470 | u8 *x; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 471 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 472 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
Wolfgang Denk | 77ddac9 | 2005-10-13 16:45:02 +0200 | [diff] [blame] | 473 | char *hostname; |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 474 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 475 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 476 | *e++ = 99; /* RFC1048 Magic Cookie */ |
| 477 | *e++ = 130; |
| 478 | *e++ = 83; |
| 479 | *e++ = 99; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 480 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 481 | *e++ = 53; /* DHCP Message Type */ |
| 482 | *e++ = 1; |
| 483 | *e++ = message_type; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 484 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 485 | *e++ = 57; /* Maximum DHCP Message Size */ |
| 486 | *e++ = 2; |
Joe Hershberger | f831573 | 2012-05-23 07:58:14 +0000 | [diff] [blame] | 487 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 8; |
| 488 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 489 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 490 | if (server_ip.s_addr) { |
| 491 | int tmp = ntohl(server_ip.s_addr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 492 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 493 | *e++ = 54; /* ServerID */ |
| 494 | *e++ = 4; |
| 495 | *e++ = tmp >> 24; |
| 496 | *e++ = tmp >> 16; |
| 497 | *e++ = tmp >> 8; |
| 498 | *e++ = tmp & 0xff; |
| 499 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 500 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 501 | if (requested_ip.s_addr) { |
| 502 | int tmp = ntohl(requested_ip.s_addr); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 503 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 504 | *e++ = 50; /* Requested IP */ |
| 505 | *e++ = 4; |
| 506 | *e++ = tmp >> 24; |
| 507 | *e++ = tmp >> 16; |
| 508 | *e++ = tmp >> 8; |
| 509 | *e++ = tmp & 0xff; |
| 510 | } |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 511 | #if defined(CONFIG_BOOTP_SEND_HOSTNAME) |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 512 | hostname = env_get("hostname"); |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 513 | if (hostname) { |
| 514 | int hostnamelen = strlen(hostname); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 515 | |
| 516 | *e++ = 12; /* Hostname */ |
| 517 | *e++ = hostnamelen; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 518 | memcpy(e, hostname, hostnamelen); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 519 | e += hostnamelen; |
| 520 | } |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 521 | #endif |
| 522 | |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 523 | #ifdef CONFIG_BOOTP_PXE_CLIENTARCH |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 524 | clientarch = CONFIG_BOOTP_PXE_CLIENTARCH; |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 525 | #endif |
| 526 | |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 527 | if (env_get("bootp_arch")) |
Simon Glass | bfebc8c | 2017-08-03 12:22:13 -0600 | [diff] [blame] | 528 | clientarch = env_get_ulong("bootp_arch", 16, clientarch); |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 529 | |
| 530 | if (clientarch > 0) { |
| 531 | *e++ = 93; /* Client System Architecture */ |
| 532 | *e++ = 2; |
| 533 | *e++ = (clientarch >> 8) & 0xff; |
| 534 | *e++ = clientarch & 0xff; |
| 535 | } |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 536 | |
| 537 | *e++ = 94; /* Client Network Interface Identifier */ |
| 538 | *e++ = 3; |
| 539 | *e++ = 1; /* type field for UNDI */ |
| 540 | *e++ = 0; /* major revision */ |
| 541 | *e++ = 0; /* minor revision */ |
| 542 | |
Alexander Graf | bc6fc28 | 2016-05-12 15:51:45 +0200 | [diff] [blame] | 543 | #ifdef CONFIG_LIB_UUID |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 544 | uuid = env_get("pxeuuid"); |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 545 | |
| 546 | if (uuid) { |
| 547 | if (uuid_str_valid(uuid)) { |
| 548 | *e++ = 97; /* Client Machine Identifier */ |
| 549 | *e++ = 17; |
| 550 | *e++ = 0; /* type 0 - UUID */ |
| 551 | |
Przemyslaw Marczak | d718ded | 2014-04-02 10:20:03 +0200 | [diff] [blame] | 552 | uuid_str_to_bin(uuid, e, UUID_STR_FORMAT_STD); |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 553 | e += 16; |
| 554 | } else { |
| 555 | printf("Invalid pxeuuid: %s\n", uuid); |
| 556 | } |
| 557 | } |
Ilya Yanok | 9ace17c | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 558 | #endif |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 559 | |
Alexander Graf | 4570a99 | 2016-05-06 21:01:02 +0200 | [diff] [blame] | 560 | e = add_vci(e); |
Jason Hobbs | d2b5d5c | 2011-08-31 05:37:31 +0000 | [diff] [blame] | 561 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 562 | #if defined(CONFIG_BOOTP_VENDOREX) |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 563 | x = dhcp_vendorex_prep(e); |
| 564 | if (x) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 565 | return x - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 566 | #endif |
| 567 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 568 | *e++ = 55; /* Parameter Request List */ |
| 569 | cnt = e++; /* Pointer to count of requested items */ |
| 570 | *cnt = 0; |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 571 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 572 | *e++ = 1; /* Subnet Mask */ |
| 573 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 574 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 575 | #if defined(CONFIG_BOOTP_TIMEOFFSET) |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 576 | *e++ = 2; |
| 577 | *cnt += 1; |
| 578 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 579 | #if defined(CONFIG_BOOTP_GATEWAY) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 580 | *e++ = 3; /* Router Option */ |
| 581 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 582 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 583 | #if defined(CONFIG_BOOTP_DNS) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 584 | *e++ = 6; /* DNS Server(s) */ |
| 585 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 586 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 587 | #if defined(CONFIG_BOOTP_HOSTNAME) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 588 | *e++ = 12; /* Hostname */ |
| 589 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 590 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 591 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 592 | *e++ = 13; /* Boot File Size */ |
| 593 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 594 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 595 | #if defined(CONFIG_BOOTP_BOOTPATH) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 596 | *e++ = 17; /* Boot path */ |
| 597 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 598 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 599 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 600 | *e++ = 40; /* NIS Domain name request */ |
| 601 | *cnt += 1; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 602 | #endif |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 603 | #if defined(CONFIG_BOOTP_NTPSERVER) |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 604 | *e++ = 42; |
| 605 | *cnt += 1; |
| 606 | #endif |
Jason Liu | 258ccd6 | 2010-11-14 12:23:09 +0800 | [diff] [blame] | 607 | /* no options, so back up to avoid sending an empty request list */ |
| 608 | if (*cnt == 0) |
| 609 | e -= 2; |
| 610 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 611 | *e++ = 255; /* End of the list */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 612 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 613 | /* Pad to minimal length */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 614 | #ifdef CONFIG_DHCP_MIN_EXT_LEN |
Simon Glass | 21076f6 | 2011-02-02 15:03:28 -0800 | [diff] [blame] | 615 | while ((e - start) < CONFIG_DHCP_MIN_EXT_LEN) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 616 | *e++ = 0; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 617 | #endif |
| 618 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 619 | return e - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 620 | } |
| 621 | |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 622 | #else |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 623 | /* |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 624 | * Warning: no field size check - change CONFIG_BOOTP_* at your own risk! |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 625 | */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 626 | static int bootp_extended(u8 *e) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 627 | { |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 628 | u8 *start = e; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 629 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 630 | *e++ = 99; /* RFC1048 Magic Cookie */ |
| 631 | *e++ = 130; |
| 632 | *e++ = 83; |
| 633 | *e++ = 99; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 634 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 635 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 636 | *e++ = 53; /* DHCP Message Type */ |
| 637 | *e++ = 1; |
| 638 | *e++ = DHCP_DISCOVER; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 639 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 640 | *e++ = 57; /* Maximum DHCP Message Size */ |
| 641 | *e++ = 2; |
Joe Hershberger | f831573 | 2012-05-23 07:58:14 +0000 | [diff] [blame] | 642 | *e++ = (576 - 312 + OPT_FIELD_SIZE) >> 16; |
| 643 | *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff; |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 644 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 645 | |
Walter Stoll | d4a660a | 2021-10-12 11:01:59 +0000 | [diff] [blame] | 646 | e = add_vci(e); |
Ilya Yanok | 9ace17c | 2012-09-17 10:26:25 +0000 | [diff] [blame] | 647 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 648 | #if defined(CONFIG_BOOTP_SUBNETMASK) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 649 | *e++ = 1; /* Subnet mask request */ |
| 650 | *e++ = 4; |
| 651 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 652 | #endif |
| 653 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 654 | #if defined(CONFIG_BOOTP_GATEWAY) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 655 | *e++ = 3; /* Default gateway request */ |
| 656 | *e++ = 4; |
| 657 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 658 | #endif |
| 659 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 660 | #if defined(CONFIG_BOOTP_DNS) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 661 | *e++ = 6; /* Domain Name Server */ |
| 662 | *e++ = 4; |
| 663 | e += 4; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 664 | #endif |
| 665 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 666 | #if defined(CONFIG_BOOTP_HOSTNAME) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 667 | *e++ = 12; /* Host name request */ |
| 668 | *e++ = 32; |
| 669 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 670 | #endif |
| 671 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 672 | #if defined(CONFIG_BOOTP_BOOTFILESIZE) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 673 | *e++ = 13; /* Boot file size */ |
| 674 | *e++ = 2; |
| 675 | e += 2; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 676 | #endif |
| 677 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 678 | #if defined(CONFIG_BOOTP_BOOTPATH) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 679 | *e++ = 17; /* Boot path */ |
| 680 | *e++ = 32; |
| 681 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 682 | #endif |
| 683 | |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 684 | #if defined(CONFIG_BOOTP_NISDOMAIN) |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 685 | *e++ = 40; /* NIS Domain name request */ |
| 686 | *e++ = 32; |
| 687 | e += 32; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 688 | #endif |
Luuk Paulussen | 09e3a67 | 2011-05-16 18:29:19 +0000 | [diff] [blame] | 689 | #if defined(CONFIG_BOOTP_NTPSERVER) |
| 690 | *e++ = 42; |
| 691 | *e++ = 4; |
| 692 | e += 4; |
| 693 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 694 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 695 | *e++ = 255; /* End of the list */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 696 | |
Andre Renaud | 166c409 | 2016-05-05 07:28:08 -0600 | [diff] [blame] | 697 | /* |
| 698 | * If nothing in list, remove it altogether. Some DHCP servers get |
| 699 | * upset by this minor faux pas and do not respond at all. |
| 700 | */ |
| 701 | if (e == start + 3) { |
| 702 | printf("*** Warning: no DHCP options requested\n"); |
| 703 | e -= 3; |
| 704 | } |
| 705 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 706 | return e - start; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 707 | } |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 708 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 709 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 710 | void bootp_reset(void) |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 711 | { |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 712 | bootp_num_ids = 0; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 713 | bootp_try = 0; |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 714 | bootp_start = get_timer(0); |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 715 | bootp_timeout = 250; |
Stephen Warren | f59be6e | 2014-07-25 17:30:48 -0600 | [diff] [blame] | 716 | } |
| 717 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 718 | void bootp_request(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 719 | { |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 720 | uchar *pkt, *iphdr; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 721 | struct bootp_hdr *bp; |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 722 | int extlen, pktlen, iplen; |
| 723 | int eth_hdr_size; |
Joe Hershberger | eafc8db | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 724 | #ifdef CONFIG_BOOTP_RANDOM_DELAY |
Pavel Machek | 8e8d73b | 2014-07-11 11:39:37 +0200 | [diff] [blame] | 725 | ulong rand_ms; |
Joe Hershberger | eafc8db | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 726 | #endif |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 727 | u32 bootp_id; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 728 | struct in_addr zero_ip; |
| 729 | struct in_addr bcast_ip; |
Alexandre Messier | 50768f5 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 730 | char *ep; /* Environment pointer */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 731 | |
Simon Glass | 573f14f | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 732 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start"); |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 733 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 734 | dhcp_state = INIT; |
| 735 | #endif |
| 736 | |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 737 | ep = env_get("bootpretryperiod"); |
Alexandre Messier | 50768f5 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 738 | if (ep != NULL) |
Simon Glass | 0b1284e | 2021-07-24 09:03:30 -0600 | [diff] [blame] | 739 | time_taken_max = dectoul(ep, NULL); |
Alexandre Messier | 50768f5 | 2016-02-01 17:08:57 -0500 | [diff] [blame] | 740 | else |
| 741 | time_taken_max = TIMEOUT_MS; |
| 742 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 743 | #ifdef CONFIG_BOOTP_RANDOM_DELAY /* Random BOOTP delay */ |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 744 | if (bootp_try == 0) |
Joe Hershberger | eafc8db | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 745 | srand_mac(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 746 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 747 | if (bootp_try <= 2) /* Start with max 1024 * 1ms */ |
| 748 | rand_ms = rand() >> (22 - bootp_try); |
Joe Hershberger | eafc8db | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 749 | else /* After 3rd BOOTP request max 8192 * 1ms */ |
| 750 | rand_ms = rand() >> 19; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 751 | |
Joe Hershberger | eafc8db | 2012-05-23 07:57:58 +0000 | [diff] [blame] | 752 | printf("Random delay: %ld ms...\n", rand_ms); |
Pavel Machek | 8e8d73b | 2014-07-11 11:39:37 +0200 | [diff] [blame] | 753 | mdelay(rand_ms); |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 754 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 755 | #endif /* CONFIG_BOOTP_RANDOM_DELAY */ |
| 756 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 757 | printf("BOOTP broadcast %d\n", ++bootp_try); |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 758 | pkt = net_tx_packet; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 759 | memset((void *)pkt, 0, PKTSIZE); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 760 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 761 | eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP); |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 762 | pkt += eth_hdr_size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 763 | |
| 764 | /* |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 765 | * Next line results in incorrect packet size being transmitted, |
| 766 | * resulting in errors in some DHCP servers, reporting missing bytes. |
| 767 | * Size must be set in packet header after extension length has been |
| 768 | * determined. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 769 | * C. Hallinan, DS4.COM, Inc. |
| 770 | */ |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 771 | /* net_set_udp_header(pkt, 0xFFFFFFFFL, PORT_BOOTPS, PORT_BOOTPC, |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 772 | sizeof (struct bootp_hdr)); */ |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 773 | iphdr = pkt; /* We need this later for net_set_udp_header() */ |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 774 | pkt += IP_UDP_HDR_SIZE; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 775 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 776 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 777 | bp->bp_op = OP_BOOTREQUEST; |
| 778 | bp->bp_htype = HWT_ETHER; |
| 779 | bp->bp_hlen = HWL_ETHER; |
| 780 | bp->bp_hops = 0; |
Stefan Brüns | 454d9d3 | 2015-08-27 23:57:18 +0200 | [diff] [blame] | 781 | /* |
| 782 | * according to RFC1542, should be 0 on first request, secs since |
| 783 | * first request otherwise |
| 784 | */ |
| 785 | bp->bp_secs = htons(get_timer(bootp_start) / 1000); |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 786 | zero_ip.s_addr = 0; |
| 787 | net_write_ip(&bp->bp_ciaddr, zero_ip); |
| 788 | net_write_ip(&bp->bp_yiaddr, zero_ip); |
| 789 | net_write_ip(&bp->bp_siaddr, zero_ip); |
| 790 | net_write_ip(&bp->bp_giaddr, zero_ip); |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 791 | memcpy(bp->bp_chaddr, net_ethaddr, 6); |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 792 | copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 793 | |
| 794 | /* Request additional information from the BOOTP/DHCP server */ |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 795 | #if defined(CONFIG_CMD_DHCP) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 796 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_DISCOVER, zero_ip, |
| 797 | zero_ip); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 798 | #else |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 799 | extlen = bootp_extended((u8 *)bp->bp_vend); |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 800 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 801 | |
| 802 | /* |
| 803 | * Bootp ID is the lower 4 bytes of our ethernet address |
Bartlomiej Sieka | 49f3bdb | 2008-10-01 15:26:28 +0200 | [diff] [blame] | 804 | * plus the current time in ms. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 805 | */ |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 806 | bootp_id = ((u32)net_ethaddr[2] << 24) |
| 807 | | ((u32)net_ethaddr[3] << 16) |
| 808 | | ((u32)net_ethaddr[4] << 8) |
| 809 | | (u32)net_ethaddr[5]; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 810 | bootp_id += get_timer(0); |
| 811 | bootp_id = htonl(bootp_id); |
| 812 | bootp_add_id(bootp_id); |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 813 | net_copy_u32(&bp->bp_id, &bootp_id); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 814 | |
| 815 | /* |
| 816 | * Calculate proper packet lengths taking into account the |
| 817 | * variable size of the options field |
| 818 | */ |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 819 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
| 820 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 821 | bcast_ip.s_addr = 0xFFFFFFFFL; |
| 822 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 823 | net_set_timeout_handler(bootp_timeout, bootp_timeout_handler); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 824 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 825 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 826 | dhcp_state = SELECTING; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 827 | net_set_udp_handler(dhcp_handler); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 828 | #else |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 829 | net_set_udp_handler(bootp_handler); |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 830 | #endif |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 831 | net_send_packet(net_tx_packet, pktlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 832 | } |
| 833 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 834 | #if defined(CONFIG_CMD_DHCP) |
Stefan Brüns | 774c3e0 | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 835 | static void dhcp_process_options(uchar *popt, uchar *end) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 836 | { |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 837 | int oplen, size; |
Wolfgang Denk | d8d8724 | 2009-09-11 09:05:32 +0200 | [diff] [blame] | 838 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
| 839 | int *to_ptr; |
| 840 | #endif |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 841 | |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 842 | while (popt < end && *popt != 0xff) { |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 843 | oplen = *(popt + 1); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 844 | switch (*popt) { |
Stefan Brüns | c56eb57 | 2015-08-28 10:15:54 +0200 | [diff] [blame] | 845 | case 0: |
| 846 | oplen = -1; /* Pad omits len byte */ |
| 847 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 848 | case 1: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 849 | net_copy_ip(&net_netmask, (popt + 2)); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 850 | break; |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 851 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET) |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 852 | case 2: /* Time offset */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 853 | to_ptr = &net_ntp_time_offset; |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 854 | net_copy_u32((u32 *)to_ptr, (u32 *)(popt + 2)); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 855 | net_ntp_time_offset = ntohl(net_ntp_time_offset); |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 856 | break; |
| 857 | #endif |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 858 | case 3: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 859 | net_copy_ip(&net_gateway, (popt + 2)); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 860 | break; |
| 861 | case 6: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 862 | net_copy_ip(&net_dns_server, (popt + 2)); |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 863 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 864 | if (*(popt + 1) > 4) |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 865 | net_copy_ip(&net_dns_server2, (popt + 2 + 4)); |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 866 | #endif |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 867 | break; |
| 868 | case 12: |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 869 | size = truncate_sz("Host Name", |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 870 | sizeof(net_hostname), oplen); |
| 871 | memcpy(&net_hostname, popt + 2, size); |
| 872 | net_hostname[size] = 0; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 873 | break; |
| 874 | case 15: /* Ignore Domain Name Option */ |
| 875 | break; |
| 876 | case 17: |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 877 | size = truncate_sz("Root Path", |
Joe Hershberger | 586cbe5 | 2015-04-08 01:41:03 -0500 | [diff] [blame] | 878 | sizeof(net_root_path), oplen); |
| 879 | memcpy(&net_root_path, popt + 2, size); |
| 880 | net_root_path[size] = 0; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 881 | break; |
Brian Rzycki | ee0f60d | 2012-09-11 09:22:53 +0000 | [diff] [blame] | 882 | case 28: /* Ignore Broadcast Address Option */ |
| 883 | break; |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 884 | #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER) |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 885 | case 42: /* NTP server IP */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 886 | net_copy_ip(&net_ntp_server, (popt + 2)); |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 887 | break; |
| 888 | #endif |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 889 | case 51: |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 890 | net_copy_u32(&dhcp_leasetime, (u32 *)(popt + 2)); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 891 | break; |
Stefan Brüns | ec87b1b | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 892 | case 52: |
| 893 | dhcp_option_overload = popt[2]; |
| 894 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 895 | case 53: /* Ignore Message Type Option */ |
| 896 | break; |
| 897 | case 54: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 898 | net_copy_ip(&dhcp_server_ip, (popt + 2)); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 899 | break; |
| 900 | case 58: /* Ignore Renewal Time Option */ |
| 901 | break; |
| 902 | case 59: /* Ignore Rebinding Time Option */ |
| 903 | break; |
Wolfgang Denk | 3b2e4fd | 2006-03-12 18:26:46 +0100 | [diff] [blame] | 904 | case 66: /* Ignore TFTP server name */ |
| 905 | break; |
Stefan Brüns | ec87b1b | 2015-09-04 00:31:48 +0200 | [diff] [blame] | 906 | case 67: /* Bootfile option */ |
Alexander Graf | 449312c | 2018-06-15 10:29:27 +0200 | [diff] [blame] | 907 | if (!net_boot_file_name_explicit) { |
| 908 | size = truncate_sz("Bootfile", |
| 909 | sizeof(net_boot_file_name), |
| 910 | oplen); |
| 911 | memcpy(&net_boot_file_name, popt + 2, size); |
| 912 | net_boot_file_name[size] = 0; |
| 913 | } |
Wolfgang Denk | 3b2e4fd | 2006-03-12 18:26:46 +0100 | [diff] [blame] | 914 | break; |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 915 | default: |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 916 | #if defined(CONFIG_BOOTP_VENDOREX) |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 917 | if (dhcp_vendorex_proc(popt)) |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 918 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 919 | #endif |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 920 | printf("*** Unhandled DHCP Option in OFFER/ACK:" |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 921 | " %d\n", *popt); |
wdenk | 232c150 | 2004-03-12 00:14:09 +0000 | [diff] [blame] | 922 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 923 | } |
| 924 | popt += oplen + 2; /* Process next option */ |
| 925 | } |
| 926 | } |
| 927 | |
Stefan Brüns | 774c3e0 | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 928 | static void dhcp_packet_process_options(struct bootp_hdr *bp) |
| 929 | { |
| 930 | uchar *popt = (uchar *)&bp->bp_vend[4]; |
| 931 | uchar *end = popt + BOOTP_HDR_SIZE; |
| 932 | |
| 933 | if (net_read_u32((u32 *)&bp->bp_vend[0]) != htonl(BOOTP_VENDOR_MAGIC)) |
| 934 | return; |
| 935 | |
| 936 | dhcp_option_overload = 0; |
| 937 | |
| 938 | /* |
| 939 | * The 'options' field MUST be interpreted first, 'file' next, |
| 940 | * 'sname' last. |
| 941 | */ |
| 942 | dhcp_process_options(popt, end); |
| 943 | |
| 944 | if (dhcp_option_overload & OVERLOAD_FILE) { |
| 945 | popt = (uchar *)bp->bp_file; |
| 946 | end = popt + sizeof(bp->bp_file); |
| 947 | dhcp_process_options(popt, end); |
| 948 | } |
| 949 | |
| 950 | if (dhcp_option_overload & OVERLOAD_SNAME) { |
| 951 | popt = (uchar *)bp->bp_sname; |
| 952 | end = popt + sizeof(bp->bp_sname); |
| 953 | dhcp_process_options(popt, end); |
| 954 | } |
| 955 | } |
| 956 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 957 | static int dhcp_message_type(unsigned char *popt) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 958 | { |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 959 | if (net_read_u32((u32 *)popt) != htonl(BOOTP_VENDOR_MAGIC)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 960 | return -1; |
| 961 | |
| 962 | popt += 4; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 963 | while (*popt != 0xff) { |
| 964 | if (*popt == 53) /* DHCP Message Type */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 965 | return *(popt + 2); |
Stefan Brüns | c56eb57 | 2015-08-28 10:15:54 +0200 | [diff] [blame] | 966 | if (*popt == 0) { |
| 967 | /* Pad */ |
| 968 | popt += 1; |
| 969 | } else { |
| 970 | /* Scan through all options */ |
| 971 | popt += *(popt + 1) + 2; |
| 972 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 973 | } |
| 974 | return -1; |
| 975 | } |
| 976 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 977 | static void dhcp_send_request_packet(struct bootp_hdr *bp_offer) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 978 | { |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 979 | uchar *pkt, *iphdr; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 980 | struct bootp_hdr *bp; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 981 | int pktlen, iplen, extlen; |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 982 | int eth_hdr_size; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 983 | struct in_addr offered_ip; |
| 984 | struct in_addr zero_ip; |
| 985 | struct in_addr bcast_ip; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 986 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 987 | debug("dhcp_send_request_packet: Sending DHCPREQUEST\n"); |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 988 | pkt = net_tx_packet; |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 989 | memset((void *)pkt, 0, PKTSIZE); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 990 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 991 | eth_hdr_size = net_set_ether(pkt, net_bcast_ethaddr, PROT_IP); |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 992 | pkt += eth_hdr_size; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 993 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 994 | iphdr = pkt; /* We'll need this later to set proper pkt size */ |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 995 | pkt += IP_UDP_HDR_SIZE; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 996 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 997 | bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 998 | bp->bp_op = OP_BOOTREQUEST; |
| 999 | bp->bp_htype = HWT_ETHER; |
| 1000 | bp->bp_hlen = HWL_ETHER; |
| 1001 | bp->bp_hops = 0; |
Stefan Brüns | 454d9d3 | 2015-08-27 23:57:18 +0200 | [diff] [blame] | 1002 | bp->bp_secs = htons(get_timer(bootp_start) / 1000); |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1003 | /* Do not set the client IP, your IP, or server IP yet, since it |
| 1004 | * hasn't been ACK'ed by the server yet */ |
Justin Flammia | e5c794e | 2007-10-29 17:40:35 -0400 | [diff] [blame] | 1005 | |
Wolfgang Denk | c668670 | 2006-10-12 00:01:08 +0200 | [diff] [blame] | 1006 | /* |
Wolfgang Denk | d82718f | 2006-10-09 01:26:14 +0200 | [diff] [blame] | 1007 | * RFC3046 requires Relay Agents to discard packets with |
| 1008 | * nonzero and offered giaddr |
| 1009 | */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1010 | zero_ip.s_addr = 0; |
| 1011 | net_write_ip(&bp->bp_giaddr, zero_ip); |
Wolfgang Denk | d82718f | 2006-10-09 01:26:14 +0200 | [diff] [blame] | 1012 | |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 1013 | memcpy(bp->bp_chaddr, net_ethaddr, 6); |
Alexandre Messier | b2b7fbc | 2016-01-28 11:19:02 -0500 | [diff] [blame] | 1014 | copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file)); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1015 | |
| 1016 | /* |
| 1017 | * ID is the id of the OFFER packet |
| 1018 | */ |
| 1019 | |
Sergey Temerkhanov | 5917e7d | 2015-04-08 01:41:22 -0500 | [diff] [blame] | 1020 | net_copy_u32(&bp->bp_id, &bp_offer->bp_id); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1021 | |
| 1022 | /* |
| 1023 | * Copy options from OFFER packet if present |
| 1024 | */ |
Justin Flammia | e5c794e | 2007-10-29 17:40:35 -0400 | [diff] [blame] | 1025 | |
| 1026 | /* Copy offered IP into the parameters request list */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1027 | net_copy_ip(&offered_ip, &bp_offer->bp_yiaddr); |
| 1028 | extlen = dhcp_extended((u8 *)bp->bp_vend, DHCP_REQUEST, |
| 1029 | dhcp_server_ip, offered_ip); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1030 | |
Joe Hershberger | ae446f5 | 2012-05-23 07:59:10 +0000 | [diff] [blame] | 1031 | iplen = BOOTP_HDR_SIZE - OPT_FIELD_SIZE + extlen; |
| 1032 | pktlen = eth_hdr_size + IP_UDP_HDR_SIZE + iplen; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1033 | bcast_ip.s_addr = 0xFFFFFFFFL; |
| 1034 | net_set_udp_header(iphdr, bcast_ip, PORT_BOOTPS, PORT_BOOTPC, iplen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1035 | |
Joe Hershberger | f962322 | 2012-05-23 07:59:11 +0000 | [diff] [blame] | 1036 | debug("Transmitting DHCPREQUEST packet: len = %d\n", pktlen); |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 1037 | net_send_packet(net_tx_packet, pktlen); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
| 1040 | /* |
| 1041 | * Handle DHCP received packets. |
| 1042 | */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1043 | static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| 1044 | unsigned src, unsigned len) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1045 | { |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1046 | struct bootp_hdr *bp = (struct bootp_hdr *)pkt; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1047 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1048 | debug("DHCPHandler: got packet: (src=%d, dst=%d, len=%d) state: %d\n", |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1049 | src, dest, len, dhcp_state); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1050 | |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1051 | /* Filter out pkts we don't want */ |
Stefan Brüns | 867d6ae | 2015-08-27 23:53:26 +0200 | [diff] [blame] | 1052 | if (check_reply_packet(pkt, dest, src, len)) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1053 | return; |
| 1054 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1055 | debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: " |
| 1056 | "%d\n", src, dest, len, dhcp_state); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1057 | |
Lyle Franklin | c8e251f | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1058 | if (net_read_ip(&bp->bp_yiaddr).s_addr == 0) { |
| 1059 | #if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 1060 | store_bootp_params(bp); |
| 1061 | #endif |
Peng Fan | 44c42dd | 2016-01-07 15:28:23 +0800 | [diff] [blame] | 1062 | return; |
Lyle Franklin | c8e251f | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1063 | } |
Peng Fan | 44c42dd | 2016-01-07 15:28:23 +0800 | [diff] [blame] | 1064 | |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1065 | switch (dhcp_state) { |
| 1066 | case SELECTING: |
| 1067 | /* |
| 1068 | * Wait an appropriate time for any potential DHCPOFFER packets |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1069 | * to arrive. Then select one, and generate DHCPREQUEST |
| 1070 | * response. If filename is in format we recognize, assume it |
| 1071 | * is a valid OFFER from a server we want. |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1072 | */ |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1073 | debug("DHCP: state=SELECTING bp_file: \"%s\"\n", bp->bp_file); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1074 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1075 | if (strncmp(bp->bp_file, |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1076 | CONFIG_SYS_BOOTFILE_PREFIX, |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1077 | strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1078 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
Stefan Brüns | 774c3e0 | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 1079 | dhcp_packet_process_options(bp); |
Jan Kiszka | 77b5c4a | 2022-10-14 18:10:06 +0200 | [diff] [blame] | 1080 | if (CONFIG_IS_ENABLED(EFI_LOADER) && |
Heinrich Schuchardt | bdb060a | 2022-11-26 16:32:25 +0100 | [diff] [blame^] | 1081 | CONFIG_IS_ENABLED(NETDEVICES)) |
Jan Kiszka | 77b5c4a | 2022-10-14 18:10:06 +0200 | [diff] [blame] | 1082 | efi_net_set_dhcp_ack(pkt, len); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1083 | |
Lyle Franklin | c8e251f | 2019-08-05 06:23:42 -0400 | [diff] [blame] | 1084 | #if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) |
| 1085 | if (!net_server_ip.s_addr) |
| 1086 | udelay(CONFIG_SERVERIP_FROM_PROXYDHCP_DELAY_MS * |
| 1087 | 1000); |
| 1088 | #endif /* CONFIG_SERVERIP_FROM_PROXYDHCP */ |
| 1089 | |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1090 | debug("TRANSITIONING TO REQUESTING STATE\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1091 | dhcp_state = REQUESTING; |
stroese | 759a51b | 2003-04-10 13:26:44 +0000 | [diff] [blame] | 1092 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1093 | net_set_timeout_handler(5000, bootp_timeout_handler); |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1094 | dhcp_send_request_packet(bp); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1095 | #ifdef CONFIG_SYS_BOOTFILE_PREFIX |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1096 | } |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 1097 | #endif /* CONFIG_SYS_BOOTFILE_PREFIX */ |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1098 | |
| 1099 | return; |
| 1100 | break; |
| 1101 | case REQUESTING: |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1102 | debug("DHCP State: REQUESTING\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1103 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1104 | if (dhcp_message_type((u8 *)bp->bp_vend) == DHCP_ACK) { |
Stefan Brüns | 774c3e0 | 2015-09-04 00:31:49 +0200 | [diff] [blame] | 1105 | dhcp_packet_process_options(bp); |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1106 | /* Store net params from reply */ |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1107 | store_net_params(bp); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1108 | dhcp_state = BOUND; |
Thierry Reding | 92ac8ac | 2014-08-19 10:21:24 +0200 | [diff] [blame] | 1109 | printf("DHCP client bound to address %pI4 (%lu ms)\n", |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1110 | &net_ip, get_timer(bootp_start)); |
Stefan Brüns | 4f28c9b | 2015-08-30 17:47:17 +0200 | [diff] [blame] | 1111 | net_set_timeout_handler(0, (thand_f *)0); |
Simon Glass | 573f14f | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 1112 | bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP, |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1113 | "bootp_stop"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1114 | |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 1115 | net_auto_load(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1116 | return; |
| 1117 | } |
| 1118 | break; |
Remy Bohmer | 51dfe13 | 2008-08-20 11:30:28 +0200 | [diff] [blame] | 1119 | case BOUND: |
| 1120 | /* DHCP client bound to address */ |
| 1121 | break; |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1122 | default: |
Joe Hershberger | 3090b7e3 | 2012-05-15 08:59:06 +0000 | [diff] [blame] | 1123 | puts("DHCP: INVALID STATE\n"); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1124 | break; |
| 1125 | } |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1128 | void dhcp_request(void) |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1129 | { |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 1130 | bootp_request(); |
wdenk | 3861aa5 | 2002-09-27 23:19:37 +0000 | [diff] [blame] | 1131 | } |
Wolfgang Denk | 992742a | 2007-11-03 23:09:27 +0100 | [diff] [blame] | 1132 | #endif /* CONFIG_CMD_DHCP */ |