xref: /illumos-gate/usr/src/cmd/cmd-inet/sbin/dhcpagent/util.h (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3)
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  */
24 
25 #ifndef	UTIL_H
26 #define	UTIL_H
27 
28 #include <sys/types.h>
29 #include <netinet/in.h>
30 #include <netinet/dhcp.h>
31 #include <netinet/dhcp6.h>
32 #include <libinetutil.h>
33 #include <dhcpagent_ipc.h>
34 
35 #include "common.h"
36 
37 /*
38  * general utility functions which have no better home.  see util.c
39  * for documentation on how to use the exported functions.
40  */
41 
42 #ifdef	__cplusplus
43 extern "C" {
44 #endif
45 
46 struct dhcp_timer_s {
47 	iu_timer_id_t	dt_id;
48 	lease_t		dt_start;		/* Initial timer value */
49 };
50 
51 /* conversion functions */
52 const char	*pkt_type_to_string(uchar_t, boolean_t);
53 const char	*monosec_to_string(monosec_t);
54 time_t		monosec_to_time(monosec_t);
55 monosec_t	hrtime_to_monosec(hrtime_t);
56 
57 /* shutdown handlers */
58 void		graceful_shutdown(int);
59 void		inactivity_shutdown(iu_tq_t *, void *);
60 
61 /* timer functions */
62 void		init_timer(dhcp_timer_t *, lease_t);
63 boolean_t	cancel_timer(dhcp_timer_t *);
64 boolean_t	schedule_timer(dhcp_timer_t *, iu_tq_callback_t *, void *);
65 
66 /* miscellaneous */
67 boolean_t	add_default_route(uint32_t, struct in_addr *);
68 boolean_t	del_default_route(uint32_t, struct in_addr *);
69 int		daemonize(void);
70 monosec_t	monosec(void);
71 void		print_server_msg(dhcp_smach_t *, const char *, uint_t);
72 boolean_t	bind_sock(int, in_port_t, in_addr_t);
73 boolean_t	bind_sock_v6(int, in_port_t, const in6_addr_t *);
74 const char	*iffile_to_hostname(const char *);
75 int		dhcpv6_status_code(const dhcpv6_option_t *, uint_t,
76     const char **, const char **, uint_t *);
77 void		write_lease_to_hostconf(dhcp_smach_t *);
78 
79 #ifdef	__cplusplus
80 }
81 #endif
82 
83 #endif	/* UTIL_H */
84