summaryrefslogtreecommitdiff
path: root/networking/udhcp/dhcpd.h
diff options
context:
space:
mode:
Diffstat (limited to 'networking/udhcp/dhcpd.h')
-rw-r--r--networking/udhcp/dhcpd.h141
1 files changed, 141 insertions, 0 deletions
diff --git a/networking/udhcp/dhcpd.h b/networking/udhcp/dhcpd.h
new file mode 100644
index 0000000..a060002
--- /dev/null
+++ b/networking/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