BOOTP.H
资源名称:wattcp.rar [点击查看]
上传用户:better800
上传日期:2022-06-13
资源大小:1853k
文件大小:3k
源码类别:
TCP/IP协议栈
开发平台:
DOS
- /*
- * Bootstrap Protocol (BOOTP)
- * Based on RFC 951.
- */
- #define BOOTREQUEST 1 /* bootp.bp_op */
- #define BOOTREPLY 2
- // S. Lawson - DHCP definitions
- #define DHCP_VN_REQIP 50
- #define DHCP_VN_TYPE 53
- #define DHCP_VN_SRVRID 54
- #define DHCP_VN_OPTS 55
- #define DHCP_VN_T1TIME 58
- #define DHCP_VN_T2TIME 59
- #define DHCP_TY_DSC 1
- #define DHCP_TY_OFR 2
- #define DHCP_TY_REQ 3
- #define DHCP_TY_ACK 5
- #define DHCP_TY_NAK 6
- /*
- * structure for send and receives
- */
- typedef struct bootp {
- byte bp_op; /* packet op code / message type. */
- byte bp_htype; /* hardware address type, 1 = 10 mb ethernet */
- byte bp_hlen; /* hardware address len, eg '6' for 10mb eth */
- byte bp_hops; /* client sets to zero, optionally used by
- gateways in cross-gateway booting. */
- longword bp_xid; /* transaction ID, a random number */
- word bp_secs; /* filled in by client, seconds elapsed since
- client started trying to boot. */
- word bp_spare;
- longword bp_ciaddr; /* client IP address filled in by client if known*/
- longword bp_yiaddr; /* 'your' (client) IP address
- filled by server if client doesn't know */
- longword bp_siaddr; /* server IP address returned in bootreply */
- longword bp_giaddr; /* gateway IP address,
- used in optional cross-gateway booting. */
- byte bp_chaddr[16]; /* client hardware address, filled by client */
- byte bp_sname[64]; /* optional server host name, null terminated*/
- byte bp_file[128]; /* boot file name, null terminated string
- 'generic' name or null in bootrequest,
- fully qualified directory-path
- name in bootreply. */
- // S. Lawson - extend for DHCP
- // byte bp_vend[ 64]; /* optional vendor-specific area */
- byte bp_vend[312]; /* optional vendor-specific area */
- };
- extern struct bootp _bootp;
- extern word sock_inactive;
- /*
- * UDP port numbers, server and client.
- */
- #define IPPORT_BOOTPS 67
- #define IPPORT_BOOTPC 68
- /******** the following is stolen from NCSA which came from CUTCP *********/
- /* I have not implemented these, but someone may wish to in the future so */
- /* I kept them around. */
- /**************************************************************************/
- /*
- * "vendor" data permitted for Stanford boot clients.
- */
- struct vend {
- byte v_magic[4]; /* magic number */
- longword v_flags; /* flags/opcodes, etc. */
- byte v_unused[56]; /* currently unused */
- };
- #define VM_STANFORD "STAN" /* v_magic for Stanford */
- /*#define VM_RFC1048 "143202123143" /* 94.11.20 */
- /* v_flags values */
- #define VF_PCBOOT 1 /* an IBMPC or Mac wants environment info */
- #define VF_HELP 2 /* help me, I'm not registered */
- #define TAG_BOOTFILE_SIZE 13 /* tag used by vend fields rfc 1048 */