#ifndef ETHERBOOT_H #define ETHERBOOT_H /* * Standard includes that we always want * */ #include "compiler.h" #include "stddef.h" #include "stdint.h" #include /* * IMPORTANT!!!!!!!!!!!!!! * * Everything below this point is cruft left over from older versions * of Etherboot. Do not add *anything* below this point. Things are * gradually being moved to individual header files. * */ #include #include "osdep.h" #ifndef BOOT_FIRST #define BOOT_FIRST BOOT_NIC #endif #ifndef BOOT_SECOND #define BOOT_SECOND BOOT_NOTHING #endif #ifndef BOOT_THIRD #define BOOT_THIRD BOOT_NOTHING #endif #define DEFAULT_BOOT_ORDER ( \ (BOOT_FIRST << (0*BOOT_BITS)) | \ (BOOT_SECOND << (1*BOOT_BITS)) | \ (BOOT_THIRD << (2*BOOT_BITS)) | \ (BOOT_NOTHING << (3*BOOT_BITS)) | \ 0) #ifdef BOOT_INDEX #define DEFAULT_BOOT_INDEX BOOT_INDEX #else #define DEFAULT_BOOT_INDEX 0 #endif #if !defined(TAGGED_IMAGE) && !defined(AOUT_IMAGE) && !defined(ELF_IMAGE) && !defined(ELF64_IMAGE) && !defined(COFF_IMAGE) && !defined(RAW_IMAGE) #define TAGGED_IMAGE /* choose at least one */ #endif #define K_ESC '\033' #define K_EOF '\04' /* Ctrl-D */ #define K_INTR '\03' /* Ctrl-C */ /* Edit this to change the path to hostspecific kernel image kernel. in RARP boot */ #ifndef DEFAULT_KERNELPATH #define DEFAULT_KERNELPATH "/tftpboot/kernel.%@" #endif #ifdef FREEBSD_PXEEMU #undef DEFAULT_BOOTFILE #ifndef PXENFSROOTPATH #define PXENFSROOTPATH "" #endif #define DEFAULT_BOOTFILE PXENFSROOTPATH "/boot/pxeboot" #endif #ifndef MAX_TFTP_RETRIES #define MAX_TFTP_RETRIES 20 #endif #ifndef MAX_BOOTP_RETRIES #define MAX_BOOTP_RETRIES 20 #endif #define MAX_BOOTP_EXTLEN (ETH_MAX_MTU-sizeof(struct bootpip_t)) #ifndef MAX_ARP_RETRIES #define MAX_ARP_RETRIES 20 #endif #ifndef MAX_RPC_RETRIES #define MAX_RPC_RETRIES 20 #endif /* Link configuration time in tenths of a second */ #ifndef VALID_LINK_TIMEOUT #define VALID_LINK_TIMEOUT 100 /* 10.0 seconds */ #endif /* Inter-packet retry in ticks */ #ifndef TIMEOUT #define TIMEOUT (10*TICKS_PER_SEC) #endif #ifndef BOOTP_TIMEOUT #define BOOTP_TIMEOUT (2*TICKS_PER_SEC) #endif /* Max interval between IGMP packets */ #define IGMP_INTERVAL (10*TICKS_PER_SEC) #define IGMPv1_ROUTER_PRESENT_TIMEOUT (400*TICKS_PER_SEC) /* These settings have sense only if compiled with -DCONGESTED */ /* total retransmission timeout in ticks */ #define TFTP_TIMEOUT (30*TICKS_PER_SEC) /* packet retransmission timeout in ticks */ #ifdef CONGESTED #define TFTP_REXMT (3*TICKS_PER_SEC) #else #define TFTP_REXMT TIMEOUT #endif #ifndef NULL #define NULL ((void *)0) #endif #include enum { ARP_CLIENT, ARP_SERVER, ARP_GATEWAY, ARP_NAMESERVER, #ifdef PXE_EXPORT ARP_PROXYDHCP, #endif MAX_ARP }; #define RARP_REQUEST 3 #define RARP_REPLY 4 #include /* Helper macros used to identify when DHCP options are valid/invalid in/outside of encapsulation */ #define NON_ENCAP_OPT in_encapsulated_options == 0 && #ifdef ALLOW_ONLY_ENCAPSULATED #define ENCAP_OPT in_encapsulated_options == 1 && #else #define ENCAP_OPT #endif #include #include "ip.h" #include "udp.h" #include "old_tcp.h" #include "bootp.h" #include "igmp.h" #include "nfs.h" #include "console.h" #include "stdlib.h" struct arptable_t { struct in_addr ipaddr; uint8_t node[6]; } PACKED; #define KERNEL_BUF (bootp_data.bootp_reply.bp_file) #define FLOPPY_BOOT_LOCATION 0x7c00 struct rom_info { unsigned short rom_segment; unsigned short rom_length; }; extern inline int rom_address_ok(struct rom_info *rom, int assigned_rom_segment) { return (assigned_rom_segment < 0xC000 || assigned_rom_segment == rom->rom_segment); } /* Define a type for passing info to a loaded program */ struct ebinfo { uint8_t major, minor; /* Version */ uint16_t flags; /* Bit flags */ }; /*************************************************************************** External prototypes ***************************************************************************/ /* main.c */ struct Elf_Bhdr; extern int main(); extern char as_main_program; /* nic.c */ extern void rx_qdrain P((void)); extern int ip_transmit P((int len, const void *buf)); extern void build_ip_hdr P((unsigned long destip, int ttl, int protocol, int option_len, int len, const void *buf)); extern void build_udp_hdr P((unsigned long destip, unsigned int srcsock, unsigned int destsock, int ttl, int len, const void *buf)); extern int udp_transmit P((unsigned long destip, unsigned int srcsock, unsigned int destsock, int len, const void *buf)); extern int tcp_transmit(unsigned long destip, unsigned int srcsock, unsigned int destsock, long send_seq, long recv_seq, int window, int flags, int len, const void *buf); int tcp_reset(struct iphdr *ip); typedef int (*reply_t)(int ival, void *ptr, unsigned short ptype, struct iphdr *ip, struct udphdr *udp, struct tcphdr *tcp); extern int await_reply P((reply_t reply, int ival, void *ptr, long timeout)); extern int decode_rfc1533 P((unsigned char *, unsigned int, unsigned int, int)); #define RAND_MAX 2147483647L extern uint16_t ipchksum P((const void *ip, unsigned long len)); extern uint16_t add_ipchksums P((unsigned long offset, uint16_t sum, uint16_t new)); extern long rfc2131_sleep_interval P((long base, int exp)); extern void cleanup P((void)); /* osloader.c */ /* Be careful with sector_t it is an unsigned long long on x86 */ typedef uint64_t sector_t; typedef sector_t (*os_download_t)(unsigned char *data, unsigned int len, int eof); extern os_download_t probe_image(unsigned char *data, unsigned int len); extern int load_block P((unsigned char *, unsigned int, unsigned int, int )); /* misc.c */ extern void twiddle P((void)); extern void interruptible_sleep P((int secs)); extern int strcasecmp P((const char *a, const char *b)); extern char *substr P((const char *a, const char *b)); extern unsigned long get_boot_order(unsigned long order, unsigned *index); extern void disk_init P((void)); extern unsigned int pcbios_disk_read P((int drv,int c,int h,int s,char *buf)); /* start32.S */ struct os_entry_regs { /* Be careful changing this structure * as it is used by assembly language code. */ uint32_t edi; /* 0 */ uint32_t esi; /* 4 */ uint32_t ebp; /* 8 */ uint32_t esp; /* 12 */ uint32_t ebx; /* 16 */ uint32_t edx; /* 20 */ uint32_t ecx; /* 24 */ uint32_t eax; /* 28 */ uint32_t saved_ebp; /* 32 */ uint32_t saved_esi; /* 36 */ uint32_t saved_edi; /* 40 */ uint32_t saved_ebx; /* 44 */ uint32_t saved_eip; /* 48 */ uint32_t saved_esp; /* 52 */ }; struct regs { /* Be careful changing this structure * as it is used by assembly language code. */ uint32_t edi; /* 0 */ uint32_t esi; /* 4 */ uint32_t ebp; /* 8 */ uint32_t esp; /* 12 */ uint32_t ebx; /* 16 */ uint32_t edx; /* 20 */ uint32_t ecx; /* 24 */ uint32_t eax; /* 28 */ }; extern struct os_entry_regs os_regs; extern struct regs initial_regs; extern int xstart32(unsigned long entry_point, ...); extern int xstart_lm(unsigned long entry_point, unsigned long params); extern void xend32 P((void)); struct Elf_Bhdr *prepare_boot_params(void *header); extern int elf_start(unsigned long machine, unsigned long entry, unsigned long params); extern unsigned long currticks P((void)); extern void exit P((int status)); /*************************************************************************** External variables ***************************************************************************/ /* main.c */ extern struct rom_info rom; extern char *hostname; extern int hostnamelen; extern unsigned char *addparam; extern int addparamlen; extern jmp_buf restart_etherboot; extern int url_port; extern struct arptable_t arptable[MAX_ARP]; #ifdef IMAGE_MENU extern int menutmo,menudefault; extern unsigned char *defparams; extern int defparams_max; #endif #ifdef MOTD extern unsigned char *motd[RFC1533_VENDOR_NUMOFMOTD]; #endif extern struct bootpd_t bootp_data; #define BOOTP_DATA_ADDR (&bootp_data) extern unsigned char *end_of_rfc1533; #ifdef IMAGE_FREEBSD extern int freebsd_howto; #define FREEBSD_KERNEL_ENV_SIZE 256 extern char freebsd_kernel_env[FREEBSD_KERNEL_ENV_SIZE]; #endif /* * Local variables: * c-basic-offset: 8 * End: */ #endif /* ETHERBOOT_H */