xref: /freebsd/sys/rpc/getnetconfig.c (revision f4b37ed0f8b307b1f3f0f630ca725d68f1dff30d)
1 /*-
2  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3  * Authors: Doug Rabson <dfr@rabson.org>
4  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include "opt_inet6.h"
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/malloc.h>
35 #include <sys/systm.h>
36 
37 #include <rpc/types.h>
38 
39 /*
40  * For in-kernel use, we use a simple compiled-in configuration.
41  */
42 
43 static struct netconfig netconfigs[] = {
44 #ifdef INET6
45 	{
46 		.nc_netid =	"udp6",
47 		.nc_semantics =	NC_TPI_CLTS,
48 		.nc_flag =	NC_VISIBLE,
49 		.nc_protofmly =	"inet6",
50 		.nc_proto =	"udp",
51 	},
52 	{
53 		.nc_netid =	"tcp6",
54 		.nc_semantics =	NC_TPI_COTS_ORD,
55 		.nc_flag =	NC_VISIBLE,
56 		.nc_protofmly =	"inet6",
57 		.nc_proto =	"tcp",
58 	},
59 #endif
60 	{
61 		.nc_netid =	"udp",
62 		.nc_semantics =	NC_TPI_CLTS,
63 		.nc_flag =	NC_VISIBLE,
64 		.nc_protofmly =	"inet",
65 		.nc_proto =	"udp",
66 	},
67 	{
68 		.nc_netid =	"tcp",
69 		.nc_semantics =	NC_TPI_COTS_ORD,
70 		.nc_flag =	NC_VISIBLE,
71 		.nc_protofmly =	"inet",
72 		.nc_proto =	"tcp",
73 	},
74 	{
75 		.nc_netid =	"local",
76 		.nc_semantics =	NC_TPI_COTS_ORD,
77 		.nc_flag =	0,
78 		.nc_protofmly =	"loopback",
79 		.nc_proto =	"",
80 	},
81 	{
82 		.nc_netid =	NULL,
83 	}
84 };
85 
86 void *
87 setnetconfig(void)
88 {
89 	struct netconfig **nconfp;
90 
91 	nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
92 	*nconfp = netconfigs;
93 
94 	return ((void *) nconfp);
95 }
96 
97 struct netconfig *
98 getnetconfig(void *handle)
99 {
100 	struct netconfig **nconfp = (struct netconfig **) handle;
101 	struct netconfig *nconf;
102 
103 	nconf = *nconfp;
104 	if (nconf->nc_netid == NULL)
105 		return (NULL);
106 
107 	(*nconfp)++;
108 
109 	return (nconf);
110 }
111 
112 struct netconfig *
113 getnetconfigent(const char *netid)
114 {
115 	struct netconfig *nconf;
116 
117 	for (nconf = netconfigs; nconf->nc_netid; nconf++) {
118 		if (!strcmp(netid, nconf->nc_netid))
119 			return (nconf);
120 	}
121 
122 	return (NULL);
123 }
124 
125 void
126 freenetconfigent(struct netconfig *nconf)
127 {
128 
129 }
130 
131 int
132 endnetconfig(void * handle)
133 {
134 	struct netconfig **nconfp = (struct netconfig **) handle;
135 
136 	free(nconfp, M_RPC);
137 	return (0);
138 }
139