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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	UTIL_H
     27 #define	UTIL_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 #include <sys/types.h>
     32 #include <netinet/in.h>
     33 #include <netinet/dhcp.h>
     34 #include <netinet/dhcp6.h>
     35 #include <libinetutil.h>
     36 #include <dhcpagent_ipc.h>
     37 
     38 #include "common.h"
     39 
     40 /*
     41  * general utility functions which have no better home.  see util.c
     42  * for documentation on how to use the exported functions.
     43  */
     44 
     45 #ifdef	__cplusplus
     46 extern "C" {
     47 #endif
     48 
     49 struct dhcp_timer_s {
     50 	iu_timer_id_t	dt_id;
     51 	lease_t		dt_start;		/* Initial timer value */
     52 };
     53 
     54 /* conversion functions */
     55 const char	*pkt_type_to_string(uchar_t, boolean_t);
     56 const char	*monosec_to_string(monosec_t);
     57 time_t		monosec_to_time(monosec_t);
     58 monosec_t	hrtime_to_monosec(hrtime_t);
     59 
     60 /* shutdown handlers */
     61 void		graceful_shutdown(int);
     62 void		inactivity_shutdown(iu_tq_t *, void *);
     63 
     64 /* timer functions */
     65 void		init_timer(dhcp_timer_t *, lease_t);
     66 boolean_t	cancel_timer(dhcp_timer_t *);
     67 boolean_t	schedule_timer(dhcp_timer_t *, iu_tq_callback_t *, void *);
     68 
     69 /* miscellaneous */
     70 boolean_t	add_default_route(uint32_t, struct in_addr *);
     71 boolean_t	del_default_route(uint32_t, struct in_addr *);
     72 int		daemonize(void);
     73 monosec_t	monosec(void);
     74 void		print_server_msg(dhcp_smach_t *, const char *, uint_t);
     75 boolean_t	bind_sock(int, in_port_t, in_addr_t);
     76 boolean_t	bind_sock_v6(int, in_port_t, const in6_addr_t *);
     77 const char	*iffile_to_hostname(const char *);
     78 int		dhcpv6_status_code(const dhcpv6_option_t *, uint_t,
     79     const char **, const char **, uint_t *);
     80 
     81 #ifdef	__cplusplus
     82 }
     83 #endif
     84 
     85 #endif	/* UTIL_H */
     86