* Build udhcpc binary from source.

[grml-terminalserver.git] / udhcp / dhcpd.h

diff --git a/udhcp/dhcpd.h b/udhcp/dhcpd.h
new file mode 100644 (file)
index 0000000..65c8348
--- /dev/null
+++ b/udhcp/dhcpd.h
@@ -0,0 +1,141 @@
+/* dhcpd.h */
+#ifndef _DHCPD_H
+#define _DHCPD_H
+
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+#include "libbb_udhcp.h"
+#include "leases.h"
+#include "version.h"
+
+/************************************/
+/* Defaults _you_ may want to tweak */
+/************************************/
+
+/* the period of time the client is allowed to use that address */
+#define LEASE_TIME              (60*60*24*10) /* 10 days of seconds */
+#define LEASES_FILE            "/var/lib/misc/udhcpd.leases"
+
+/* where to find the DHCP server configuration file */
+#define DHCPD_CONF_FILE         "/etc/udhcpd.conf"
+
+/*****************************************************************/
+/* Do not modify below here unless you know what you are doing!! */
+/*****************************************************************/
+
+/* DHCP protocol -- see RFC 2131 */
+#define SERVER_PORT            67
+#define CLIENT_PORT            68
+
+#define DHCP_MAGIC             0x63825363
+
+/* DHCP option codes (partial list) */
+#define DHCP_PADDING           0x00
+#define DHCP_SUBNET            0x01
+#define DHCP_TIME_OFFSET       0x02
+#define DHCP_ROUTER            0x03
+#define DHCP_TIME_SERVER       0x04
+#define DHCP_NAME_SERVER       0x05
+#define DHCP_DNS_SERVER                0x06
+#define DHCP_LOG_SERVER                0x07
+#define DHCP_COOKIE_SERVER     0x08
+#define DHCP_LPR_SERVER                0x09
+#define DHCP_HOST_NAME         0x0c
+#define DHCP_BOOT_SIZE         0x0d
+#define DHCP_DOMAIN_NAME       0x0f
+#define DHCP_SWAP_SERVER       0x10
+#define DHCP_ROOT_PATH         0x11
+#define DHCP_IP_TTL            0x17
+#define DHCP_MTU               0x1a
+#define DHCP_BROADCAST         0x1c
+#define DHCP_NTP_SERVER                0x2a
+#define DHCP_WINS_SERVER       0x2c
+#define DHCP_REQUESTED_IP      0x32
+#define DHCP_LEASE_TIME                0x33
+#define DHCP_OPTION_OVER       0x34
+#define DHCP_MESSAGE_TYPE      0x35
+#define DHCP_SERVER_ID         0x36
+#define DHCP_PARAM_REQ         0x37
+#define DHCP_MESSAGE           0x38
+#define DHCP_MAX_SIZE          0x39
+#define DHCP_T1                        0x3a
+#define DHCP_T2                        0x3b
+#define DHCP_VENDOR            0x3c
+#define DHCP_CLIENT_ID         0x3d
+#define DHCP_FQDN              0x51
+
+#define DHCP_END               0xFF
+
+
+#define BOOTREQUEST            1
+#define BOOTREPLY              2
+
+#define ETH_10MB               1
+#define ETH_10MB_LEN           6
+
+#define DHCPDISCOVER           1
+#define DHCPOFFER              2
+#define DHCPREQUEST            3
+#define DHCPDECLINE            4
+#define DHCPACK                        5
+#define DHCPNAK                        6
+#define DHCPRELEASE            7
+#define DHCPINFORM             8
+
+#define BROADCAST_FLAG         0x8000
+
+#define OPTION_FIELD           0
+#define FILE_FIELD             1
+#define SNAME_FIELD            2
+
+/* miscellaneous defines */
+#define MAC_BCAST_ADDR         (uint8_t *) "\xff\xff\xff\xff\xff\xff"
+#define OPT_CODE 0
+#define OPT_LEN 1
+#define OPT_DATA 2
+
+struct option_set {
+       uint8_t *data;
+       struct option_set *next;
+};
+
+struct static_lease {
+       uint8_t *mac;
+       uint32_t *ip;
+       struct static_lease *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 */
+       uint8_t arp[6];         /* Our arp address */
+       unsigned long lease;            /* lease time in seconds (host order) */
+       unsigned long 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 */
+       unsigned long auto_time;        /* how long should udhcpd wait before writing a config file.
+                                        * if this is zero, it will only write one on SIGUSR1 */
+       unsigned long decline_time;     /* how long an address is reserved if a client returns a
+                                        * decline message */
+       unsigned long conflict_time;    /* how long an arp conflict offender is leased for */
+       unsigned long offer_time;       /* how long an offered address is reserved */
+       unsigned long min_lease;        /* minimum lease a client can request*/
+       char *lease_file;
+       char *pidfile;
+       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 */
+       struct static_lease *static_leases; /* List of ip/mac pairs to assign static leases */
+};
+
+extern struct server_config_t server_config;
+extern struct dhcpOfferedAddr *leases;
+
+
+#endif