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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _DHCPD_H
#define _DHCPD_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* dhcpd.h -- common header file for all the modules of the in.dhcpd program.
*/
#include <dhcp_svc_confopt.h>
#include <dhcp_svc_private.h>
#include <dhcp_svc_public.h>
#include <dhcp_impl.h>
#include <dhcp_symbol.h>
#include <libinetutil.h>
#include "hash.h"
#include "per_dnet.h"
/*
* Raw encoded packet data. The final state. Note that 'code' not only
* describes options: predefined: 1-60, site: 128-254, vendor: 42(*),
* but it also defines packet fields for packet data as well.
* Note that due to overlap of codes between various DSYM categories,
* category must be used to distinguish (see libdhcputil).
*/
typedef struct encoded {
uchar_t category; /* Option category */
ushort_t code; /* Option code: 1--254, pkt loc */
uchar_t len; /* len of data */
uchar_t *data; /* Encoded DHCP packet field / option */
struct encoded *prev; /* previous in list */
struct encoded *next; /* next in list */
} ENCODE;
typedef struct {
char class[DSYM_CLASS_SIZE + 1]; /* client class */
ENCODE *head; /* options of this class */
} VNDLIST;
typedef struct {
char nm[DN_MAX_CID_LEN + 1]; /* Macro name */
ENCODE *head; /* head of encoded opts */
int classes; /* num of client classes */
VNDLIST **list; /* table of client classes */
} MACRO;
/* logging message categories */
typedef enum {
L_ASSIGN = 0, /* New assignment */
L_REPLY = 1, /* respond to existing client */
L_RELEASE = 2, /* client released IP */
L_DECLINE = 3, /* client declined IP */
L_INFORM = 4, /* client requested information only */
L_NAK = 5, /* client NAK'ed */
L_ICMP_ECHO = 6, /* Server detected IP in use */
L_RELAY_REQ = 7, /* Relay request to server(s) */
L_RELAY_REP = 8 /* Relay reply to client */
} DHCP_MSG_CATEGORIES;
typedef enum {
P_BOOTP = 0, /* BOOT Protocol */
P_DHCP = 1 /* DHC Protocol */
} DHCP_PROTO;
#define DHCPD "in.dhcpd" /* daemon's name */
#define DAEMON_VERS "3.5" /* daemon's version number */
#define ENC_COPY 0 /* Copy encode list */
#define ENC_DONT_COPY 1 /* don't copy encode list */
#define DHCP_MAX_REPLY_SIZE 8192 /* should be big enough */
#define DHCP_MIN_RECORDS 32 /* should be big enough */
#define DHCP_ICMP_ATTEMPTS 1 /* Number of ping attempts */
#define DHCP_ICMP_TIMEOUT 1000 /* Wait # millisecs for resp */
#define DHCP_ARP_ADD 0 /* Add an ARP table entry */
#define DHCP_ARP_DEL 1 /* Del an ARP table entry */
#define DHCP_SCRATCH 128 /* scratch buffer size */
#define NEW_DHCPTAB 0 /* load initial dhcptab */
#define PRESERVE_DHCPTAB 1 /* preserve previous dhcptab */
#define DEFAULT_LEASE 3600 /* Default if not specified */
#define DHCP_RDCOP_RETRIES 3 /* Attempts to read options */
#define HASHTABLESIZE 257 /* must be a prime number */
#define DHCP_RESCAN_SCALE 60L /* scale rescan_interval */
#define DHCP_MIN_CLIENTS 32 /* minimum client structs */
#define DHCP_DEFAULT_CLIENTS 1024 /* default client structs */
#define DHCP_MINFREE_CLIENTS 8 /* minimum free clients */
#define DHCP_NSS_LWP 32 /* free lwps for nss lib use */
#define DHCP_NSS_TIME 3 /* name service cache time */
#define DHCP_NO_NSU (-1) /* No Name service updates */
/* load option flags */
#define DHCP_DHCP_CLNT 1 /* It's a DHCP client */
#define DHCP_SEND_LEASE 2 /* Send lease parameters */
#define DHCP_NON_RFC1048 4 /* non-rfc1048 magic cookie */
#define DHCP_OVRLD_CLR ((uchar_t)0x00) /* SNAME/FILE clear */
#define DHCP_OVRLD_FILE ((uchar_t)0x01) /* FILE in use */
#define DHCP_OVRLD_SNAME ((uchar_t)0x02) /* SNAME in use */
#define DHCP_OVRLD_ALL ((uchar_t)0x03) /* All overload space in use */
/* dhcp_lookup_dd_classify search flags */
#define S_CID 0x01 /* find a client match */
#define S_FREE 0x02 /* find a free record */
#define S_LRU 0x04 /* find an lru record */
/* DHCP client states */
#define INIT_STATE 1
#define INIT_REBOOT_STATE 2
#define RENEW_REBIND_STATE 3
extern int debug;
extern boolean_t verbose;
extern boolean_t noping;
extern boolean_t no_dhcptab;
extern boolean_t server_mode;
extern boolean_t be_automatic;
extern uchar_t max_hops;
extern int log_local;
extern int icmp_tries;
extern time_t off_secs;
extern time_t cache_secs;
extern time_t renog_secs;
extern time_t min_lru;
extern time_t icmp_timeout;
extern time_t nsutimeout_secs;
extern boolean_t time_to_go;
extern struct in_addr server_ip;
extern struct in_addr *owner_ip;
extern dsvc_datastore_t datastore;
extern int max_threads; /* maximum number of threads per net */
extern int max_clients; /* maximum number of clients per net */
extern ushort_t port_offset; /* offset to port for multiple server */
extern int net_thresh; /* secs to keep pernet reference */
extern int clnt_thresh; /* secs to keep client reference */
extern time_t reinit_time; /* reinitialization time */
extern struct __res_state resolv_conf;
#ifdef DEBUG
extern char *dbg_net; /* simulated debug net (see misc.c) */
#endif /* DEBUG */
extern void *reinitialize(void *);
extern PKT *gen_bootp_pkt(int, PKT *);
extern int initmtab(void);
extern int initntab(void);
extern int checktab(void);
extern int readtab(int);
extern void resettab(boolean_t);
extern int relay_agent_init(char *);
extern void dhcpmsg(int, const char *, ...);
extern void *smalloc(unsigned);
extern void *srealloc(void *, uint_t);
extern struct in_addr *match_ownerip(in_addr_t);
extern void *stack_create(unsigned int);
extern ENCODE *combine_encodes(ENCODE *, ENCODE *, int);
extern void open_macros(void);
extern void close_macros(void);
extern MACRO *get_macro(char *);
extern ENCODE *find_encode(ENCODE *, uchar_t, ushort_t);
extern ENCODE *dup_encode(ENCODE *);
extern ENCODE *make_encode(uchar_t, ushort_t, uchar_t, void *, int);
extern ENCODE *dup_encode_list(ENCODE *);
extern void free_encode_list(ENCODE *);
extern void free_encode(ENCODE *);
extern void replace_encode(ENCODE **, ENCODE *, int);
extern ENCODE *vendor_encodes(MACRO *, char *);
extern char *disp_cid(PKT_LIST *, char *, int);
extern void get_clnt_id(PKT_LIST *, uchar_t *, int, uchar_t *);
extern char *get_class_id(PKT_LIST *, char *, int);
extern int load_options(int, PKT_LIST *, PKT *, int, uchar_t *, ENCODE *,
ENCODE *);
extern void free_plp(PKT_LIST *);
extern void logtrans(DHCP_PROTO, DHCP_MSG_CATEGORIES, time_t,
struct in_addr, struct in_addr, PKT_LIST *);
extern int icmp_echo_check(struct in_addr *, boolean_t *);
extern void *monitor_client(void *);
extern void dhcp(dsvc_clnt_t *, PKT_LIST *);
boolean_t update_offer(dsvc_clnt_t *, dn_rec_list_t **, lease_t,
struct in_addr *, boolean_t);
extern void bootp(dsvc_clnt_t *, PKT_LIST *);
extern void get_netmask(struct in_addr *, struct in_addr *);
extern boolean_t select_offer(dsvc_dnet_t *dbp, PKT_LIST *, dsvc_clnt_t *,
dn_rec_list_t **);
extern int dhcp_open_dd(dsvc_handle_t *, dsvc_datastore_t *, dsvc_contype_t,
const char *, uint_t);
extern int dhcp_close_dd(dsvc_handle_t *);
extern int dhcp_modify_dd_entry(dsvc_handle_t, const void *, void *);
extern void dhcp_free_dd_list(dsvc_handle_t, void *);
extern void *dhcp_lookup_dd_classify(dsvc_dnet_t *, boolean_t, uint_t, int,
const dn_rec_t *, void **, int);
extern dn_rec_list_t *detach_dnrec_from_list(dn_rec_list_t *, dn_rec_list_t *,
dn_rec_list_t **);
extern int qualify_hostname(char *, const char *, const char *, int, int);
#ifdef __cplusplus
}
#endif
#endif /* _DHCPD_H */
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