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| Commit | Line | Data |
|---|---|---|
| db4d0741 MR |
1 | |
| 2 | /************************************************************************** | |
| 3 | NETBOOT - BOOTP/TFTP Bootstrap Program | |
| 4 | ||
| 5 | Author: Martin Renters | |
| 6 | Date: Dec/93 | |
| 7 | ||
| 8 | **************************************************************************/ | |
| 9 | ||
| 10 | #include <a.out.h> | |
| 11 | #include <netdb.h> | |
| 12 | #include <sys/param.h> | |
| 13 | #include <sys/socket.h> | |
| 14 | #include <sys/mount.h> | |
| 15 | #include <net/if.h> | |
| 16 | #include <nfs/nfsv2.h> | |
| 17 | #include <nfs/nfsdiskless.h> | |
| 18 | ||
| 19 | #ifndef DEFAULT_BOOTFILE | |
| 20 | #define DEFAULT_BOOTFILE "386bsd" | |
| 21 | #endif | |
| 22 | ||
| 23 | #ifndef MAX_TFTP_RETRIES | |
| 24 | #define MAX_TFTP_RETRIES 20 | |
| 25 | #endif | |
| 26 | ||
| 27 | #ifndef MAX_BOOTP_RETRIES | |
| 28 | #define MAX_BOOTP_RETRIES 20 | |
| 29 | #endif | |
| 30 | ||
| 31 | #ifndef MAX_ARP_RETRIES | |
| 32 | #define MAX_ARP_RETRIES 20 | |
| 33 | #endif | |
| 34 | ||
| 35 | #ifndef TIMEOUT /* Inter-packet retry in ticks 18/sec */ | |
| 36 | #define TIMEOUT 20 | |
| 37 | #endif | |
| 38 | ||
| 39 | #ifndef NULL | |
| 40 | #define NULL ((void *)0) | |
| 41 | #endif | |
| 42 | ||
| 43 | #define ETHER_ADDR_SIZE 6 /* Size of Ethernet address */ | |
| 44 | #define ETHER_HDR_SIZE 14 /* Size of ethernet header */ | |
| 45 | ||
| 46 | #define ARP_CLIENT 0 | |
| 47 | #define ARP_SERVER 1 | |
| 48 | #define ARP_GATEWAY 2 | |
| 49 | #define ARP_NS 3 | |
| 50 | #define MAX_ARP ARP_NS+1 | |
| 51 | ||
| 52 | #define IP 0x0800 | |
| 53 | #define ARP 0x0806 | |
| 54 | ||
| 55 | #define BOOTP_SERVER 67 | |
| 56 | #define BOOTP_CLIENT 68 | |
| 57 | #define TFTP 69 | |
| 58 | ||
| 59 | #define IP_UDP 17 | |
| 60 | #define IP_BROADCAST 0xFFFFFFFF | |
| 61 | ||
| 62 | #define ARP_REQUEST 1 | |
| 63 | #define ARP_REPLY 2 | |
| 64 | ||
| 65 | #define BOOTP_REQUEST 1 | |
| 66 | #define BOOTP_REPLY 2 | |
| 67 | ||
| 68 | #define TFTP_RRQ 1 | |
| 69 | #define TFTP_WRQ 2 | |
| 70 | #define TFTP_DATA 3 | |
| 71 | #define TFTP_ACK 4 | |
| 72 | #define TFTP_ERROR 5 | |
| 73 | ||
| 74 | #define TFTP_CODE_EOF 1 | |
| 75 | #define TFTP_CODE_MORE 2 | |
| 76 | #define TFTP_CODE_ERROR 3 | |
| 77 | #define TFTP_CODE_BOOT 4 | |
| 78 | #define TFTP_CODE_CFG 5 | |
| 79 | ||
| 80 | struct arptable_t { | |
| 81 | unsigned long ipaddr; | |
| 82 | unsigned char node[6]; | |
| 83 | } arptable[MAX_ARP]; | |
| 84 | ||
| 85 | struct arprequest { | |
| 86 | unsigned short hwtype; | |
| 87 | unsigned short protocol; | |
| 88 | char hwlen; | |
| 89 | char protolen; | |
| 90 | unsigned short opcode; | |
| 91 | char shwaddr[6]; | |
| 92 | char sipaddr[4]; | |
| 93 | char thwaddr[6]; | |
| 94 | char tipaddr[4]; | |
| 95 | }; | |
| 96 | ||
| 97 | struct iphdr { | |
| 98 | char verhdrlen; | |
| 99 | char service; | |
| 100 | unsigned short len; | |
| 101 | unsigned short ident; | |
| 102 | unsigned short frags; | |
| 103 | char ttl; | |
| 104 | char protocol; | |
| 105 | unsigned short chksum; | |
| 106 | char src[4]; | |
| 107 | char dest[4]; | |
| 108 | }; | |
| 109 | ||
| 110 | struct udphdr { | |
| 111 | unsigned short src; | |
| 112 | unsigned short dest; | |
| 113 | unsigned short len; | |
| 114 | unsigned short chksum; | |
| 115 | }; | |
| 116 | ||
| 117 | struct bootp_t { | |
| 118 | struct iphdr ip; | |
| 119 | struct udphdr udp; | |
| 120 | char bp_op; | |
| 121 | char bp_htype; | |
| 122 | char bp_hlen; | |
| 123 | char bp_hops; | |
| 124 | unsigned long bp_xid; | |
| 125 | unsigned short bp_secs; | |
| 126 | unsigned short unused; | |
| 127 | char bp_ciaddr[4]; | |
| 128 | char bp_yiaddr[4]; | |
| 129 | char bp_siaddr[4]; | |
| 130 | char bp_giaddr[4]; | |
| 131 | char bp_hwaddr[16]; | |
| 132 | char bp_sname[64]; | |
| 133 | char bp_file[128]; | |
| 134 | char bp_vend[64]; | |
| 135 | }; | |
| 136 | ||
| 137 | struct tftp_t { | |
| 138 | struct iphdr ip; | |
| 139 | struct udphdr udp; | |
| 140 | unsigned short opcode; | |
| 141 | union { | |
| 142 | char rrq[512]; | |
| 143 | struct { | |
| 144 | unsigned short block; | |
| 145 | char download[512]; | |
| 146 | } data; | |
| 147 | struct { | |
| 148 | unsigned short block; | |
| 149 | } ack; | |
| 150 | struct { | |
| 151 | unsigned short errcode; | |
| 152 | char errmsg[512]; | |
| 153 | } err; | |
| 154 | } u; | |
| 155 | }; | |
| 156 | #define TFTP_MIN_PACKET_SIZE (sizeof(struct iphdr) + sizeof(struct udphdr) + 4) | |
| 157 | ||
| 158 | #ifdef oldstuff | |
| 159 | static inline unsigned short htons(unsigned short in) | |
| 160 | { | |
| 161 | return((in >> 8) | (in << 8)); | |
| 162 | } | |
| 163 | #define ntohs htons | |
| 164 | ||
| 165 | static inline unsigned long htonl(unsigned long in) | |
| 166 | { | |
| 167 | return((in >> 24) | ((in >> 16) & 0x0000FF00) | | |
| 168 | ((in << 16) & 0x00FF0000) | (in << 24)); | |
| 169 | } | |
| 170 | #define ntohl htonl | |
| 171 | #endif | |
| 172 | ||
| 173 | static inline unsigned char inb(a) | |
| 174 | unsigned short a; | |
| 175 | { | |
| 176 | unsigned char d; | |
| 177 | asm volatile( "inb %1, %0" : "=a" (d) : "d" (a)); | |
| 178 | return d; | |
| 179 | } | |
| 180 | ||
| 181 | static inline void outb(a,d) | |
| 182 | unsigned short a; | |
| 183 | unsigned char d; | |
| 184 | { | |
| 185 | asm volatile( "outb %0, %1" : : "a" (d), "d" (a)); | |
| 186 | } |