xref: /freebsd/sys/rpc/getnetconfig.c (revision f9bc005b8ef3b507a5ecbc2d7fe4411ef70eff38)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5  * Authors: Doug Rabson <dfr@rabson.org>
6  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include "opt_inet6.h"
31 
32 #include <sys/param.h>
33 #include <sys/malloc.h>
34 #include <sys/systm.h>
35 
36 #include <rpc/types.h>
37 
38 /*
39  * For in-kernel use, we use a simple compiled-in configuration.
40  */
41 
42 static struct netconfig netconfigs[] = {
43 #ifdef INET6
44 	{
45 		.nc_netid =	"udp6",
46 		.nc_semantics =	NC_TPI_CLTS,
47 		.nc_flag =	NC_VISIBLE,
48 		.nc_protofmly =	"inet6",
49 		.nc_proto =	"udp",
50 	},
51 	{
52 		.nc_netid =	"tcp6",
53 		.nc_semantics =	NC_TPI_COTS_ORD,
54 		.nc_flag =	NC_VISIBLE,
55 		.nc_protofmly =	"inet6",
56 		.nc_proto =	"tcp",
57 	},
58 	{
59 		.nc_netid =	"rdma6",
60 		.nc_semantics =	NC_TPI_COTS_ORD,
61 		.nc_flag =	NC_VISIBLE,
62 		.nc_protofmly =	"inet6",
63 		.nc_proto =	"rdma",
64 	},
65 #endif
66 	{
67 		.nc_netid =	"udp",
68 		.nc_semantics =	NC_TPI_CLTS,
69 		.nc_flag =	NC_VISIBLE,
70 		.nc_protofmly =	"inet",
71 		.nc_proto =	"udp",
72 	},
73 	{
74 		.nc_netid =	"tcp",
75 		.nc_semantics =	NC_TPI_COTS_ORD,
76 		.nc_flag =	NC_VISIBLE,
77 		.nc_protofmly =	"inet",
78 		.nc_proto =	"tcp",
79 	},
80 	{
81 		.nc_netid =	"rdma",
82 		.nc_semantics =	NC_TPI_COTS_ORD,
83 		.nc_flag =	NC_VISIBLE,
84 		.nc_protofmly =	"inet",
85 		.nc_proto =	"rdma",
86 	},
87 	{
88 		.nc_netid =	"local",
89 		.nc_semantics =	NC_TPI_COTS_ORD,
90 		.nc_flag =	0,
91 		.nc_protofmly =	"loopback",
92 		.nc_proto =	"",
93 	},
94 	{
95 		.nc_netid =	NULL,
96 	}
97 };
98 
99 void *
100 setnetconfig(void)
101 {
102 	struct netconfig **nconfp;
103 
104 	nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
105 	*nconfp = netconfigs;
106 
107 	return ((void *) nconfp);
108 }
109 
110 struct netconfig *
111 getnetconfig(void *handle)
112 {
113 	struct netconfig **nconfp = (struct netconfig **) handle;
114 	struct netconfig *nconf;
115 
116 	nconf = *nconfp;
117 	if (nconf->nc_netid == NULL)
118 		return (NULL);
119 
120 	(*nconfp)++;
121 
122 	return (nconf);
123 }
124 
125 struct netconfig *
126 getnetconfigent(const char *netid)
127 {
128 	struct netconfig *nconf;
129 
130 	for (nconf = netconfigs; nconf->nc_netid; nconf++) {
131 		if (!strcmp(netid, nconf->nc_netid))
132 			return (nconf);
133 	}
134 
135 	return (NULL);
136 }
137 
138 void
139 freenetconfigent(struct netconfig *nconf)
140 {
141 
142 }
143 
144 int
145 endnetconfig(void * handle)
146 {
147 	struct netconfig **nconfp = (struct netconfig **) handle;
148 
149 	free(nconfp, M_RPC);
150 	return (0);
151 }
152