okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * GRUB -- GRand Unified Bootloader |
okuji | 1ed089e | 2002-05-08 07:12:29 +0000 | [diff] [blame] | 3 | * Copyright (C) 2000,2001,2002 Free Software Foundation, Inc. |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | |
| 20 | /* RULE: You must define the macro ``GRUB'' when including this header |
| 21 | file in GRUB code. */ |
| 22 | |
| 23 | /* Based on "src/etherboot.h" in etherboot-5.0.5. */ |
| 24 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 25 | /************************************************************************** |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 26 | ETHERBOOT - BOOTP/TFTP Bootstrap Program |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 27 | |
| 28 | Author: Martin Renters |
| 29 | Date: Dec/93 |
| 30 | |
| 31 | **************************************************************************/ |
| 32 | |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 33 | /* Include GRUB-specific macros and prototypes here. */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 34 | #include <shared.h> |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 35 | |
okuji | 1bb9439 | 2000-02-08 21:20:46 +0000 | [diff] [blame] | 36 | /* FIXME: For now, enable the DHCP support. Perhaps I should segregate |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 37 | the DHCP support from the BOOTP support, and permit both to |
| 38 | co-exist. */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 39 | #undef NO_DHCP_SUPPORT |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 40 | |
| 41 | /* In GRUB, the relocated address in Etherboot doesn't have any sense. |
| 42 | Just define it as a bogus value. */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 43 | #define RELOC 0 |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 44 | |
| 45 | /* FIXME: Should be an option. */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 46 | #define BACKOFF_LIMIT 7 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 47 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 48 | #include <osdep.h> |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 49 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 50 | #define CTRL_C 3 |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 51 | |
| 52 | #ifndef MAX_TFTP_RETRIES |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 53 | # define MAX_TFTP_RETRIES 20 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 54 | #endif |
| 55 | |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 56 | #ifndef MAX_BOOTP_RETRIES |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 57 | # define MAX_BOOTP_RETRIES 20 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 58 | #endif |
| 59 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 60 | #define MAX_BOOTP_EXTLEN (ETH_FRAME_LEN - ETH_HLEN - \ |
| 61 | sizeof (struct bootp_t)) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 62 | |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 63 | #ifndef MAX_ARP_RETRIES |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 64 | # define MAX_ARP_RETRIES 20 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 65 | #endif |
| 66 | |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 67 | #ifndef MAX_RPC_RETRIES |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 68 | # define MAX_RPC_RETRIES 20 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 69 | #endif |
| 70 | |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 71 | #define TICKS_PER_SEC 18 |
| 72 | |
| 73 | /* Inter-packet retry in ticks */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 74 | #define TIMEOUT (10 * TICKS_PER_SEC) |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 75 | |
| 76 | /* These settings have sense only if compiled with -DCONGESTED */ |
| 77 | /* total retransmission timeout in ticks */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 78 | #define TFTP_TIMEOUT (30 * TICKS_PER_SEC) |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 79 | /* packet retransmission timeout in ticks */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 80 | #define TFTP_REXMT (3 * TICKS_PER_SEC) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 81 | |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 82 | #ifndef NULL |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 83 | # define NULL ((void *) 0) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 84 | #endif |
| 85 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 86 | /* |
| 87 | I'm moving towards the defined names in linux/if_ether.h for clarity. |
| 88 | The confusion between 60/64 and 1514/1518 arose because the NS8390 |
| 89 | counts the 4 byte frame checksum in the incoming packet, but not |
| 90 | in the outgoing packet. 60/1514 are the correct numbers for most |
| 91 | if not all of the other NIC controllers. I will be retiring the |
| 92 | 64/1518 defines in the lead-up to 5.0. |
| 93 | */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 94 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 95 | #define ETH_ALEN 6 /* Size of Ethernet address */ |
| 96 | #define ETH_HLEN 14 /* Size of ethernet header */ |
| 97 | #define ETH_ZLEN 60 /* Minimum packet */ |
| 98 | /*#define ETH_MIN_PACKET 64*/ |
| 99 | #define ETH_FRAME_LEN 1514 /* Maximum packet */ |
| 100 | /*#define ETH_MAX_PACKET 1518*/ |
okuji | 522de74 | 2002-05-08 05:49:33 +0000 | [diff] [blame] | 101 | /* Because some DHCP/BOOTP servers don't treat the maximum length the same |
| 102 | as Etherboot, subtract the size of an IP header and that of an UDP |
| 103 | header. */ |
| 104 | #define ETH_MAX_MTU (ETH_FRAME_LEN - ETH_HLEN \ |
| 105 | - sizeof (struct iphdr) \ |
| 106 | - sizeof (struct udphdr)) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 107 | |
| 108 | #define ARP_CLIENT 0 |
| 109 | #define ARP_SERVER 1 |
| 110 | #define ARP_GATEWAY 2 |
| 111 | #define ARP_ROOTSERVER 3 |
| 112 | #define ARP_SWAPSERVER 4 |
| 113 | #define MAX_ARP ARP_SWAPSERVER+1 |
| 114 | |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 115 | #define RARP_REQUEST 3 |
| 116 | #define RARP_REPLY 4 |
| 117 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 118 | #define IP 0x0800 |
| 119 | #define ARP 0x0806 |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 120 | #define RARP 0x8035 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 121 | |
| 122 | #define BOOTP_SERVER 67 |
| 123 | #define BOOTP_CLIENT 68 |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 124 | #define TFTP_PORT 69 |
| 125 | #define SUNRPC_PORT 111 |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 126 | |
| 127 | #define IP_UDP 17 |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 128 | /* Same after going through htonl */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 129 | #define IP_BROADCAST 0xFFFFFFFF |
| 130 | |
| 131 | #define ARP_REQUEST 1 |
| 132 | #define ARP_REPLY 2 |
| 133 | |
| 134 | #define BOOTP_REQUEST 1 |
| 135 | #define BOOTP_REPLY 2 |
| 136 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 137 | #define TAG_LEN(p) (*((p) + 1)) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 138 | #define RFC1533_COOKIE 99, 130, 83, 99 |
| 139 | #define RFC1533_PAD 0 |
| 140 | #define RFC1533_NETMASK 1 |
| 141 | #define RFC1533_TIMEOFFSET 2 |
| 142 | #define RFC1533_GATEWAY 3 |
| 143 | #define RFC1533_TIMESERVER 4 |
| 144 | #define RFC1533_IEN116NS 5 |
| 145 | #define RFC1533_DNS 6 |
| 146 | #define RFC1533_LOGSERVER 7 |
| 147 | #define RFC1533_COOKIESERVER 8 |
| 148 | #define RFC1533_LPRSERVER 9 |
| 149 | #define RFC1533_IMPRESSSERVER 10 |
| 150 | #define RFC1533_RESOURCESERVER 11 |
| 151 | #define RFC1533_HOSTNAME 12 |
| 152 | #define RFC1533_BOOTFILESIZE 13 |
| 153 | #define RFC1533_MERITDUMPFILE 14 |
| 154 | #define RFC1533_DOMAINNAME 15 |
| 155 | #define RFC1533_SWAPSERVER 16 |
| 156 | #define RFC1533_ROOTPATH 17 |
| 157 | #define RFC1533_EXTENSIONPATH 18 |
| 158 | #define RFC1533_IPFORWARDING 19 |
| 159 | #define RFC1533_IPSOURCEROUTING 20 |
| 160 | #define RFC1533_IPPOLICYFILTER 21 |
| 161 | #define RFC1533_IPMAXREASSEMBLY 22 |
| 162 | #define RFC1533_IPTTL 23 |
| 163 | #define RFC1533_IPMTU 24 |
| 164 | #define RFC1533_IPMTUPLATEAU 25 |
| 165 | #define RFC1533_INTMTU 26 |
| 166 | #define RFC1533_INTLOCALSUBNETS 27 |
| 167 | #define RFC1533_INTBROADCAST 28 |
| 168 | #define RFC1533_INTICMPDISCOVER 29 |
| 169 | #define RFC1533_INTICMPRESPOND 30 |
| 170 | #define RFC1533_INTROUTEDISCOVER 31 |
| 171 | #define RFC1533_INTROUTESOLICIT 32 |
| 172 | #define RFC1533_INTSTATICROUTES 33 |
| 173 | #define RFC1533_LLTRAILERENCAP 34 |
| 174 | #define RFC1533_LLARPCACHETMO 35 |
| 175 | #define RFC1533_LLETHERNETENCAP 36 |
| 176 | #define RFC1533_TCPTTL 37 |
| 177 | #define RFC1533_TCPKEEPALIVETMO 38 |
| 178 | #define RFC1533_TCPKEEPALIVEGB 39 |
| 179 | #define RFC1533_NISDOMAIN 40 |
| 180 | #define RFC1533_NISSERVER 41 |
| 181 | #define RFC1533_NTPSERVER 42 |
| 182 | #define RFC1533_VENDOR 43 |
| 183 | #define RFC1533_NBNS 44 |
| 184 | #define RFC1533_NBDD 45 |
| 185 | #define RFC1533_NBNT 46 |
| 186 | #define RFC1533_NBSCOPE 47 |
| 187 | #define RFC1533_XFS 48 |
| 188 | #define RFC1533_XDM 49 |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 189 | #ifndef NO_DHCP_SUPPORT |
| 190 | #define RFC2132_REQ_ADDR 50 |
| 191 | #define RFC2132_MSG_TYPE 53 |
| 192 | #define RFC2132_SRV_ID 54 |
| 193 | #define RFC2132_PARAM_LIST 55 |
| 194 | #define RFC2132_MAX_SIZE 57 |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 195 | #define RFC2132_VENDOR_CLASS_ID 60 |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 196 | |
| 197 | #define DHCPDISCOVER 1 |
| 198 | #define DHCPOFFER 2 |
| 199 | #define DHCPREQUEST 3 |
| 200 | #define DHCPACK 5 |
| 201 | #endif /* NO_DHCP_SUPPORT */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 202 | |
| 203 | #define RFC1533_VENDOR_MAJOR 0 |
| 204 | #define RFC1533_VENDOR_MINOR 0 |
| 205 | |
| 206 | #define RFC1533_VENDOR_MAGIC 128 |
| 207 | #define RFC1533_VENDOR_ADDPARM 129 |
| 208 | #define RFC1533_VENDOR_MNUOPTS 160 |
| 209 | #define RFC1533_VENDOR_SELECTION 176 |
| 210 | #define RFC1533_VENDOR_MOTD 184 |
| 211 | #define RFC1533_VENDOR_NUMOFMOTD 8 |
| 212 | #define RFC1533_VENDOR_IMG 192 |
| 213 | #define RFC1533_VENDOR_NUMOFIMG 16 |
| 214 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 215 | #define RFC1533_VENDOR_CONFIGFILE 150 |
okuji | 55b7e8a | 2000-06-06 11:04:01 +0000 | [diff] [blame] | 216 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 217 | #define RFC1533_END 255 |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 218 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 219 | #define BOOTP_VENDOR_LEN 64 |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 220 | #ifndef NO_DHCP_SUPPORT |
| 221 | #define DHCP_OPT_LEN 312 |
| 222 | #endif /* NO_DHCP_SUPPORT */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 223 | |
| 224 | #define TFTP_DEFAULTSIZE_PACKET 512 |
| 225 | #define TFTP_MAX_PACKET 1432 /* 512 */ |
| 226 | |
| 227 | #define TFTP_RRQ 1 |
| 228 | #define TFTP_WRQ 2 |
| 229 | #define TFTP_DATA 3 |
| 230 | #define TFTP_ACK 4 |
| 231 | #define TFTP_ERROR 5 |
| 232 | #define TFTP_OACK 6 |
| 233 | |
| 234 | #define TFTP_CODE_EOF 1 |
| 235 | #define TFTP_CODE_MORE 2 |
| 236 | #define TFTP_CODE_ERROR 3 |
| 237 | #define TFTP_CODE_BOOT 4 |
| 238 | #define TFTP_CODE_CFG 5 |
| 239 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 240 | #define AWAIT_ARP 0 |
| 241 | #define AWAIT_BOOTP 1 |
| 242 | #define AWAIT_TFTP 2 |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 243 | #define AWAIT_RARP 3 |
| 244 | #define AWAIT_RPC 4 |
| 245 | #define AWAIT_QDRAIN 5 /* drain queue, process ARP requests */ |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 246 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 247 | typedef struct |
| 248 | { |
| 249 | unsigned long s_addr; |
| 250 | } |
| 251 | in_addr; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 252 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 253 | struct arptable_t |
| 254 | { |
| 255 | in_addr ipaddr; |
| 256 | unsigned char node[6]; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 257 | }; |
| 258 | |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 259 | /* |
| 260 | * A pity sipaddr and tipaddr are not longword aligned or we could use |
| 261 | * in_addr. No, I don't want to use #pragma packed. |
| 262 | */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 263 | struct arprequest |
| 264 | { |
| 265 | unsigned short hwtype; |
| 266 | unsigned short protocol; |
| 267 | char hwlen; |
| 268 | char protolen; |
| 269 | unsigned short opcode; |
| 270 | char shwaddr[6]; |
| 271 | char sipaddr[4]; |
| 272 | char thwaddr[6]; |
| 273 | char tipaddr[4]; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 274 | }; |
| 275 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 276 | struct iphdr |
| 277 | { |
| 278 | char verhdrlen; |
| 279 | char service; |
| 280 | unsigned short len; |
| 281 | unsigned short ident; |
| 282 | unsigned short frags; |
| 283 | char ttl; |
| 284 | char protocol; |
| 285 | unsigned short chksum; |
| 286 | in_addr src; |
| 287 | in_addr dest; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 288 | }; |
| 289 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 290 | struct udphdr |
| 291 | { |
| 292 | unsigned short src; |
| 293 | unsigned short dest; |
| 294 | unsigned short len; |
| 295 | unsigned short chksum; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 296 | }; |
| 297 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 298 | /* Format of a bootp packet. */ |
| 299 | struct bootp_t |
| 300 | { |
| 301 | char bp_op; |
| 302 | char bp_htype; |
| 303 | char bp_hlen; |
| 304 | char bp_hops; |
| 305 | unsigned long bp_xid; |
| 306 | unsigned short bp_secs; |
| 307 | unsigned short unused; |
| 308 | in_addr bp_ciaddr; |
| 309 | in_addr bp_yiaddr; |
| 310 | in_addr bp_siaddr; |
| 311 | in_addr bp_giaddr; |
| 312 | char bp_hwaddr[16]; |
| 313 | char bp_sname[64]; |
| 314 | char bp_file[128]; |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 315 | #ifdef NO_DHCP_SUPPORT |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 316 | char bp_vend[BOOTP_VENDOR_LEN]; |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 317 | #else |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 318 | char bp_vend[DHCP_OPT_LEN]; |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 319 | #endif /* NO_DHCP_SUPPORT */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 320 | }; |
| 321 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 322 | /* Format of a bootp IP packet. */ |
| 323 | struct bootpip_t |
| 324 | { |
| 325 | struct iphdr ip; |
| 326 | struct udphdr udp; |
| 327 | struct bootp_t bp; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 328 | }; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 329 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 330 | /* Format of bootp packet with extensions. */ |
| 331 | struct bootpd_t |
| 332 | { |
| 333 | struct bootp_t bootp_reply; |
| 334 | unsigned char bootp_extension[MAX_BOOTP_EXTLEN]; |
| 335 | }; |
| 336 | |
| 337 | struct tftp_t |
| 338 | { |
| 339 | struct iphdr ip; |
| 340 | struct udphdr udp; |
| 341 | unsigned short opcode; |
| 342 | union |
| 343 | { |
| 344 | char rrq[TFTP_DEFAULTSIZE_PACKET]; |
| 345 | |
| 346 | struct |
| 347 | { |
| 348 | unsigned short block; |
| 349 | char download[TFTP_MAX_PACKET]; |
| 350 | } |
| 351 | data; |
| 352 | |
| 353 | struct |
| 354 | { |
| 355 | unsigned short block; |
| 356 | } |
| 357 | ack; |
| 358 | |
| 359 | struct |
| 360 | { |
| 361 | unsigned short errcode; |
| 362 | char errmsg[TFTP_DEFAULTSIZE_PACKET]; |
| 363 | } |
| 364 | err; |
| 365 | |
| 366 | struct |
| 367 | { |
| 368 | char data[TFTP_DEFAULTSIZE_PACKET+2]; |
| 369 | } |
| 370 | oack; |
| 371 | } |
| 372 | u; |
| 373 | }; |
| 374 | |
| 375 | /* Define a smaller tftp packet solely for making requests to conserve stack |
| 376 | 512 bytes should be enough. */ |
| 377 | struct tftpreq_t |
| 378 | { |
| 379 | struct iphdr ip; |
| 380 | struct udphdr udp; |
| 381 | unsigned short opcode; |
| 382 | union |
| 383 | { |
| 384 | char rrq[512]; |
| 385 | |
| 386 | struct |
| 387 | { |
| 388 | unsigned short block; |
| 389 | } |
| 390 | ack; |
| 391 | |
| 392 | struct |
| 393 | { |
| 394 | unsigned short errcode; |
| 395 | char errmsg[512-2]; |
| 396 | } |
| 397 | err; |
| 398 | } |
| 399 | u; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 400 | }; |
| 401 | |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 402 | #define TFTP_MIN_PACKET (sizeof(struct iphdr) + sizeof(struct udphdr) + 4) |
| 403 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 404 | struct rpc_t |
| 405 | { |
| 406 | struct iphdr ip; |
| 407 | struct udphdr udp; |
| 408 | union |
| 409 | { |
| 410 | char data[300]; /* longest RPC call must fit!!!! */ |
| 411 | |
| 412 | struct |
| 413 | { |
| 414 | long id; |
| 415 | long type; |
| 416 | long rpcvers; |
| 417 | long prog; |
| 418 | long vers; |
| 419 | long proc; |
| 420 | long data[1]; |
| 421 | } |
| 422 | call; |
| 423 | |
| 424 | struct |
| 425 | { |
| 426 | long id; |
| 427 | long type; |
| 428 | long rstatus; |
| 429 | long verifier; |
| 430 | long v2; |
| 431 | long astatus; |
| 432 | long data[1]; |
| 433 | } |
| 434 | reply; |
| 435 | } |
| 436 | u; |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 437 | }; |
| 438 | |
| 439 | #define PROG_PORTMAP 100000 |
| 440 | #define PROG_NFS 100003 |
| 441 | #define PROG_MOUNT 100005 |
| 442 | |
| 443 | #define MSG_CALL 0 |
| 444 | #define MSG_REPLY 1 |
| 445 | |
| 446 | #define PORTMAP_GETPORT 3 |
| 447 | |
| 448 | #define MOUNT_ADDENTRY 1 |
| 449 | #define MOUNT_UMOUNTALL 4 |
| 450 | |
| 451 | #define NFS_LOOKUP 4 |
| 452 | #define NFS_READ 6 |
| 453 | |
| 454 | #define NFS_FHSIZE 32 |
| 455 | |
| 456 | #define NFSERR_PERM 1 |
| 457 | #define NFSERR_NOENT 2 |
| 458 | #define NFSERR_ACCES 13 |
| 459 | |
| 460 | /* Block size used for NFS read accesses. A RPC reply packet (including all |
| 461 | * headers) must fit within a single Ethernet frame to avoid fragmentation. |
| 462 | * Chosen to be a power of two, as most NFS servers are optimized for this. */ |
| 463 | #define NFS_READ_SIZE 1024 |
| 464 | |
| 465 | #define FLOPPY_BOOT_LOCATION 0x7c00 |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 466 | /* Must match offsets in loader.S */ |
| 467 | #define ROM_SEGMENT 0x1fa |
| 468 | #define ROM_LENGTH 0x1fc |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 469 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 470 | #define ROM_INFO_LOCATION (FLOPPY_BOOT_LOCATION + ROM_SEGMENT) |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 471 | /* at end of floppy boot block */ |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 472 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 473 | struct rom_info |
| 474 | { |
| 475 | unsigned short rom_segment; |
| 476 | unsigned short rom_length; |
| 477 | }; |
| 478 | |
| 479 | static inline int |
| 480 | rom_address_ok (struct rom_info *rom, int assigned_rom_segment) |
| 481 | { |
| 482 | return (assigned_rom_segment < 0xC000 |
| 483 | || assigned_rom_segment == rom->rom_segment); |
| 484 | } |
| 485 | |
| 486 | /* Define a type for passing info to a loaded program. */ |
| 487 | struct ebinfo |
| 488 | { |
| 489 | unsigned char major, minor; /* Version */ |
| 490 | unsigned short flags; /* Bit flags */ |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 491 | }; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 492 | |
| 493 | /*************************************************************************** |
| 494 | External prototypes |
| 495 | ***************************************************************************/ |
| 496 | /* main.c */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 497 | extern void print_network_configuration (void); |
| 498 | extern int ifconfig (char *ip, char *sm, char *gw, char *svr); |
| 499 | extern int udp_transmit (unsigned long destip, unsigned int srcsock, |
| 500 | unsigned int destsock, int len, const void *buf); |
| 501 | extern int await_reply (int type, int ival, void *ptr, int timeout); |
| 502 | extern int decode_rfc1533 (unsigned char *, int, int, int); |
| 503 | extern long rfc2131_sleep_interval (int base, int exp); |
| 504 | extern void cleanup (void); |
| 505 | extern int rarp (void); |
| 506 | extern int bootp (void); |
| 507 | extern void cleanup_net (void); |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 508 | |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 509 | /* config.c */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 510 | extern void print_config (void); |
| 511 | extern void eth_reset (void); |
| 512 | extern int eth_probe (void); |
| 513 | extern int eth_poll (void); |
| 514 | extern void eth_transmit (const char *d, unsigned int t, |
| 515 | unsigned int s, const void *p); |
| 516 | extern void eth_disable (void); |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 517 | |
| 518 | /* misc.c */ |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 519 | extern void twiddle (void); |
| 520 | extern void sleep (int secs); |
| 521 | extern int getdec (char **s); |
| 522 | extern void etherboot_printf (const char *, ...); |
| 523 | extern int etherboot_sprintf (char *, const char *, ...); |
| 524 | extern int inet_aton (char *p, in_addr *i); |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 525 | |
| 526 | /*************************************************************************** |
| 527 | External variables |
| 528 | ***************************************************************************/ |
| 529 | /* main.c */ |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 530 | extern int ip_abort; |
| 531 | extern int network_ready; |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 532 | extern struct rom_info rom; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 533 | extern struct arptable_t arptable[MAX_ARP]; |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 534 | extern struct bootpd_t bootp_data; |
okuji | 9fe0449 | 2000-02-07 06:26:45 +0000 | [diff] [blame] | 535 | #define BOOTP_DATA_ADDR (&bootp_data) |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 536 | extern unsigned char *end_of_rfc1533; |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 537 | |
| 538 | /* config.c */ |
| 539 | extern struct nic nic; |
okuji | be51499 | 1999-09-14 06:55:57 +0000 | [diff] [blame] | 540 | |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 541 | /* Local hack - define some macros to use etherboot source files "as is". */ |
okuji | 5ff25f9 | 2000-04-22 01:17:09 +0000 | [diff] [blame] | 542 | #ifndef GRUB |
okuji | 973e6f4 | 2002-01-02 21:56:40 +0000 | [diff] [blame] | 543 | # undef printf |
| 544 | # define printf etherboot_printf |
| 545 | # undef sprintf |
| 546 | # define sprintf etherboot_sprintf |
| 547 | #endif /* GRUB */ |