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Clean dhcpd.h.

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This commit is contained in:
Nicholas J. Kain 2010-11-13 06:48:50 -05:00
parent bb5446cf02
commit 336a54fa47
1 changed files with 61 additions and 91 deletions
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152
ndhc/dhcpd.h
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@ -1,8 +1,7 @@
/* dhcpd.h */ /* dhcpd.h */
#ifndef _DHCPD_H #ifndef DHCPD_H_
#define _DHCPD_H #define DHCPD_H_
#include <stdint.h>
#include <netinet/ip.h> #include <netinet/ip.h>
#include <netinet/udp.h> #include <netinet/udp.h>
@ -11,120 +10,91 @@
/************************************/ /************************************/
/* the period of time the client is allowed to use that address */ /* the period of time the client is allowed to use that address */
#define LEASE_TIME (60*60*24*10) /* 10 days of seconds */ #define LEASE_TIME (60*60*24*10) /* 10 days of seconds */
/*****************************************************************/ /*****************************************************************/
/* Do not modify below here unless you know what you are doing!! */ /* Do not modify below here unless you know what you are doing!! */
/*****************************************************************/ /*****************************************************************/
/* DHCP protocol -- see RFC 2131 */ /* DHCP protocol -- see RFC 2131 */
#define SERVER_PORT 67 #define SERVER_PORT 67
#define CLIENT_PORT 68 #define CLIENT_PORT 68
#define DHCP_MAGIC 0x63825363 #define DHCP_MAGIC 0x63825363
/* DHCP option codes (partial list) */ /* DHCP option codes (partial list) */
#define DHCP_PADDING 0x00 #define DHCP_PADDING 0x00
#define DHCP_SUBNET 0x01 #define DHCP_SUBNET 0x01
#define DHCP_TIME_OFFSET 0x02 #define DHCP_TIME_OFFSET 0x02
#define DHCP_ROUTER 0x03 #define DHCP_ROUTER 0x03
#define DHCP_TIME_SERVER 0x04 #define DHCP_TIME_SERVER 0x04
#define DHCP_NAME_SERVER 0x05 #define DHCP_NAME_SERVER 0x05
#define DHCP_DNS_SERVER 0x06 #define DHCP_DNS_SERVER 0x06
#define DHCP_LOG_SERVER 0x07 #define DHCP_LOG_SERVER 0x07
#define DHCP_COOKIE_SERVER 0x08 #define DHCP_COOKIE_SERVER 0x08
#define DHCP_LPR_SERVER 0x09 #define DHCP_LPR_SERVER 0x09
#define DHCP_HOST_NAME 0x0c #define DHCP_HOST_NAME 0x0c
#define DHCP_BOOT_SIZE 0x0d #define DHCP_BOOT_SIZE 0x0d
#define DHCP_DOMAIN_NAME 0x0f #define DHCP_DOMAIN_NAME 0x0f
#define DHCP_SWAP_SERVER 0x10 #define DHCP_SWAP_SERVER 0x10
#define DHCP_ROOT_PATH 0x11 #define DHCP_ROOT_PATH 0x11
#define DHCP_IP_TTL 0x17 #define DHCP_IP_TTL 0x17
#define DHCP_MTU 0x1a #define DHCP_MTU 0x1a
#define DHCP_BROADCAST 0x1c #define DHCP_BROADCAST 0x1c
#define DHCP_NTP_SERVER 0x2a #define DHCP_NTP_SERVER 0x2a
#define DHCP_WINS_SERVER 0x2c #define DHCP_WINS_SERVER 0x2c
#define DHCP_REQUESTED_IP 0x32 #define DHCP_REQUESTED_IP 0x32
#define DHCP_LEASE_TIME 0x33 #define DHCP_LEASE_TIME 0x33
#define DHCP_OPTION_OVER 0x34 #define DHCP_OPTION_OVER 0x34
#define DHCP_MESSAGE_TYPE 0x35 #define DHCP_MESSAGE_TYPE 0x35
#define DHCP_SERVER_ID 0x36 #define DHCP_SERVER_ID 0x36
#define DHCP_PARAM_REQ 0x37 #define DHCP_PARAM_REQ 0x37
#define DHCP_MESSAGE 0x38 #define DHCP_MESSAGE 0x38
#define DHCP_MAX_SIZE 0x39 #define DHCP_MAX_SIZE 0x39
#define DHCP_T1 0x3a #define DHCP_T1 0x3a
#define DHCP_T2 0x3b #define DHCP_T2 0x3b
#define DHCP_VENDOR 0x3c #define DHCP_VENDOR 0x3c
#define DHCP_CLIENT_ID 0x3d #define DHCP_CLIENT_ID 0x3d
#define DHCP_END 0xFF #define DHCP_END 0xFF
enum { enum {
BOOTREQUEST = 1, BOOTREQUEST = 1,
BOOTREPLY = 2 BOOTREPLY = 2
}; };
#define ETH_10MB 1 #define ETH_10MB 1
#define ETH_10MB_LEN 6 #define ETH_10MB_LEN 6
enum { enum {
DHCPDISCOVER = 1, DHCPDISCOVER = 1,
DHCPOFFER = 2, DHCPOFFER = 2,
DHCPREQUEST = 3, DHCPREQUEST = 3,
DHCPDECLINE = 4, DHCPDECLINE = 4,
DHCPACK = 5, DHCPACK = 5,
DHCPNAK = 6, DHCPNAK = 6,
DHCPRELEASE = 7, DHCPRELEASE = 7,
DHCPINFORM = 8 DHCPINFORM = 8
}; };
#define BROADCAST_FLAG 0x8000 #define BROADCAST_FLAG 0x8000
enum { enum {
OPTION_FIELD = 0, OPTION_FIELD = 0,
FILE_FIELD = 1, FILE_FIELD = 1,
SNAME_FIELD = 2 SNAME_FIELD = 2
}; };
#define MAC_BCAST_ADDR (unsigned char *) "\xff\xff\xff\xff\xff\xff" #define MAC_BCAST_ADDR (unsigned char *) "\xff\xff\xff\xff\xff\xff"
enum { enum {
OPT_CODE = 0, OPT_CODE = 0,
OPT_LEN = 1, OPT_LEN = 1,
OPT_DATA = 2 OPT_DATA = 2
}; };
struct option_set { struct option_set {
unsigned char *data; unsigned char *data;
struct option_set *next; struct option_set *next;
}; };
struct server_config_t {
uint32_t server; /* Our IP, in network order */
uint32_t start; /* Start address of leases, network order */
uint32_t end; /* End of leases, network order */
struct option_set *options; /* List of DHCP options loaded from the config file */
char *interface; /* The name of the interface to use */
int ifindex; /* Index number of the interface to use */
unsigned char arp[6]; /* Our arp address */
uint32_t lease; /* lease time in seconds (host order) */
uint32_t max_leases; /* maximum number of leases (including reserved address) */
char remaining; /* should the lease file be interpreted as lease time remaining, or
* as the time the lease expires */
uint32_t auto_time; /* how long should udhcpd wait before writing a config file.
* if this is zero, it will only write one on SIGUSR1 */
uint32_t decline_time; /* how long an address is reserved if a client returns a
* decline message */
uint32_t conflict_time; /* how long an arp conflict offender is leased for */
uint32_t offer_time; /* how long an offered address is reserved */
uint32_t min_lease; /* minimum lease a client can request*/
char *lease_file;
char *notify_file; /* What to run whenever leases are written */
uint32_t siaddr; /* next server bootp option */
char *sname; /* bootp server name */
char *boot_file; /* bootp boot file option */
};
extern struct server_config_t server_config;
extern struct dhcpOfferedAddr *leases;
#endif #endif