1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1997 Peter Wemm.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed for the FreeBSD Project
18 *	by Peter Wemm.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * so there!
35 *
36 * $FreeBSD$
37 */
38
39#define	__constructor	__attribute__((constructor))
40
41struct afswtch;
42struct cmd;
43
44typedef	void c_func(const char *cmd, int arg, int s, const struct afswtch *afp);
45typedef	void c_func2(const char *arg1, const char *arg2, int s, const struct afswtch *afp);
46
47struct cmd {
48	const char *c_name;
49	int	c_parameter;
50#define	NEXTARG		0xffffff	/* has following arg */
51#define	NEXTARG2	0xfffffe	/* has 2 following args */
52#define	OPTARG		0xfffffd	/* has optional following arg */
53	union {
54		c_func	*c_func;
55		c_func2	*c_func2;
56	} c_u;
57	int	c_iscloneop;
58	struct cmd *c_next;
59};
60void	cmd_register(struct cmd *);
61
62typedef	void callback_func(int s, void *);
63void	callback_register(callback_func *, void *);
64
65/*
66 * Macros for declaring command functions and initializing entries.
67 */
68#define	DECL_CMD_FUNC(name, cmd, arg) \
69	void name(const char *cmd, int arg, int s, const struct afswtch *afp)
70#define	DECL_CMD_FUNC2(name, arg1, arg2) \
71	void name(const char *arg1, const char *arg2, int s, const struct afswtch *afp)
72
73#define	DEF_CMD(name, param, func)	{ name, param, { .c_func = func }, 0, NULL }
74#define	DEF_CMD_ARG(name, func)		{ name, NEXTARG, { .c_func = func }, 0, NULL }
75#define	DEF_CMD_OPTARG(name, func)	{ name, OPTARG, { .c_func = func }, 0, NULL }
76#define	DEF_CMD_ARG2(name, func)	{ name, NEXTARG2, { .c_func2 = func }, 0, NULL }
77#define	DEF_CLONE_CMD(name, param, func) { name, param, { .c_func = func }, 1, NULL }
78#define	DEF_CLONE_CMD_ARG(name, func)	{ name, NEXTARG, { .c_func = func }, 1, NULL }
79#define	DEF_CLONE_CMD_ARG2(name, func)	{ name, NEXTARG2, { .c_func2 = func }, 1, NULL }
80
81struct ifaddrs;
82struct addrinfo;
83
84enum {
85	RIDADDR,
86	ADDR,
87	MASK,
88	DSTADDR,
89};
90
91struct afswtch {
92	const char	*af_name;	/* as given on cmd line, e.g. "inet" */
93	short		af_af;		/* AF_* */
94	/*
95	 * Status is handled one of two ways; if there is an
96	 * address associated with the interface then the
97	 * associated address family af_status method is invoked
98	 * with the appropriate addressin info.  Otherwise, if
99	 * all possible info is to be displayed and af_other_status
100	 * is defined then it is invoked after all address status
101	 * is presented.
102	 */
103	void		(*af_status)(int, const struct ifaddrs *);
104	void		(*af_other_status)(int);
105					/* parse address method */
106	void		(*af_getaddr)(const char *, int);
107					/* parse prefix method (IPv6) */
108	void		(*af_getprefix)(const char *, int);
109	void		(*af_postproc)(int s, const struct afswtch *);
110	u_long		af_difaddr;	/* set dst if address ioctl */
111	u_long		af_aifaddr;	/* set if address ioctl */
112	void		*af_ridreq;	/* */
113	void		*af_addreq;	/* */
114	struct afswtch	*af_next;
115
116	/* XXX doesn't fit model */
117	void		(*af_status_tunnel)(int);
118	void		(*af_settunnel)(int s, struct addrinfo *srcres,
119				struct addrinfo *dstres);
120};
121void	af_register(struct afswtch *);
122
123struct option {
124	const char *opt;
125	const char *opt_usage;
126	void	(*cb)(const char *arg);
127	struct option *next;
128};
129void	opt_register(struct option *);
130
131extern	struct ifreq ifr;
132extern	char name[IFNAMSIZ];	/* name of interface */
133extern	int allmedia;
134extern	int supmedia;
135extern	int printkeys;
136extern	int newaddr;
137extern	int verbose;
138extern	int printifname;
139extern	int exit_code;
140
141void	setifcap(const char *, int value, int s, const struct afswtch *);
142
143void	Perror(const char *cmd);
144void	printb(const char *s, unsigned value, const char *bits);
145
146void	ifmaybeload(const char *name);
147
148typedef void clone_callback_func(int, struct ifreq *);
149void	clone_setdefcallback(const char *, clone_callback_func *);
150
151void	sfp_status(int s, struct ifreq *ifr, int verbose);
152
153/*
154 * XXX expose this so modules that neeed to know of any pending
155 * operations on ifmedia can avoid cmd line ordering confusion.
156 */
157struct ifmediareq *ifmedia_getstate(int s);
158
159void print_vhid(const struct ifaddrs *, const char *);
160
161