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 (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright (c) 2016-2017, Chris Fraire <cfraire@me.com>.
24  */
25 
26 #ifndef	UTIL_H
27 #define	UTIL_H
28 
29 #include <sys/types.h>
30 #include <netinet/in.h>
31 #include <netinet/dhcp.h>
32 #include <netinet/dhcp6.h>
33 #include <libinetutil.h>
34 #include <dhcpagent_ipc.h>
35 
36 #include "common.h"
37 #include "packet.h"
38 
39 /*
40  * general utility functions which have no better home.  see util.c
41  * for documentation on how to use the exported functions.
42  */
43 
44 #ifdef	__cplusplus
45 extern "C" {
46 #endif
47 
48 struct dhcp_timer_s {
49 	iu_timer_id_t	dt_id;
50 	lease_t		dt_start;		/* Initial timer value */
51 };
52 
53 /* conversion functions */
54 const char	*pkt_type_to_string(uchar_t, boolean_t);
55 const char	*monosec_to_string(monosec_t);
56 time_t		monosec_to_time(monosec_t);
57 monosec_t	hrtime_to_monosec(hrtime_t);
58 
59 /* shutdown handlers */
60 void		graceful_shutdown(int);
61 void		inactivity_shutdown(iu_tq_t *, void *);
62 
63 /* timer functions */
64 void		init_timer(dhcp_timer_t *, lease_t);
65 boolean_t	cancel_timer(dhcp_timer_t *);
66 boolean_t	schedule_timer(dhcp_timer_t *, iu_tq_callback_t *, void *);
67 
68 /* miscellaneous */
69 boolean_t	add_default_route(uint32_t, struct in_addr *);
70 boolean_t	del_default_route(uint32_t, struct in_addr *);
71 int		daemonize(void);
72 monosec_t	monosec(void);
73 void		print_server_msg(dhcp_smach_t *, const char *, uint_t);
74 boolean_t	bind_sock(int, in_port_t, in_addr_t);
75 boolean_t	bind_sock_v6(int, in_port_t, const in6_addr_t *);
76 const char	*iffile_to_hostname(const char *);
77 int		dhcpv6_status_code(const dhcpv6_option_t *, uint_t,
78     const char **, const char **, uint_t *);
79 void		write_lease_to_hostconf(dhcp_smach_t *);
80 boolean_t	dhcp_add_hostname_opt(dhcp_pkt_t *, dhcp_smach_t *);
81 boolean_t	dhcp_add_fqdn_opt(dhcp_pkt_t *, dhcp_smach_t *);
82 void		save_domainname(dhcp_smach_t *, PKT_LIST *);
83 
84 #ifdef	__cplusplus
85 }
86 #endif
87 
88 #endif	/* UTIL_H */
89