1 /*
2 * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
29 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
30 /*-
31 * Copyright (c) 1982, 1986, 1993
32 * The Regents of the University of California. All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by the University of
45 * California, Berkeley and its contributors.
46 * 4. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 *
62 * @(#)uipc_proto.c 8.2 (Berkeley) 2/14/95
63 */
64
65 #include <sys/param.h>
66 #include <sys/socket.h>
67 #include <sys/protosw.h>
68 #include <sys/domain.h>
69 #include <sys/mbuf.h>
70 #include <sys/mcache.h>
71 #include <sys/un.h>
72 #include <net/raw_cb.h>
73 #include <sys/sysctl.h>
74
75 /*
76 * Definitions of protocols supported in the UNIX domain.
77 */
78 struct domain *localdomain = NULL;
79 static void pre_unp_init(struct domain *);
80
81 extern struct domain localdomain_s;
82
83 static struct protosw localsw[] = {
84 {
85 .pr_type = SOCK_STREAM,
86 .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_RIGHTS | PR_PCBLOCK,
87 .pr_ctloutput = uipc_ctloutput,
88 .pr_usrreqs = &uipc_usrreqs,
89 .pr_lock = unp_lock,
90 .pr_unlock = unp_unlock,
91 .pr_getlock = unp_getlock
92 },
93 {
94 .pr_type = SOCK_DGRAM,
95 .pr_flags = PR_ATOMIC | PR_WANTRCVD | PR_ADDR | PR_RIGHTS,
96 .pr_ctloutput = uipc_ctloutput,
97 .pr_usrreqs = &uipc_usrreqs,
98 .pr_lock = unp_lock,
99 .pr_unlock = unp_unlock,
100 .pr_getlock = unp_getlock
101 },
102 {
103 .pr_ctlinput = raw_ctlinput,
104 .pr_usrreqs = &raw_usrreqs,
105 },
106 };
107
108 static int local_proto_count = (sizeof(localsw) / sizeof(struct protosw));
109
110 static void
pre_unp_init(struct domain * dp)111 pre_unp_init(struct domain *dp)
112 {
113 struct protosw *pr;
114 int i;
115
116 VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
117 VERIFY(localdomain == NULL);
118
119 localdomain = dp;
120
121 for (i = 0, pr = &localsw[0]; i < local_proto_count; i++, pr++) {
122 net_add_proto(pr, dp, 1);
123 }
124
125 unp_init();
126 }
127
128 struct domain localdomain_s = {
129 .dom_family = PF_LOCAL,
130 .dom_name = "unix",
131 .dom_init = pre_unp_init,
132 .dom_externalize = unp_externalize,
133 .dom_dispose = unp_dispose,
134 };
135
136 SYSCTL_NODE(_net, PF_LOCAL, local, CTLFLAG_RW | CTLFLAG_LOCKED,
137 NULL, "Local domain");
138 SYSCTL_NODE(_net_local, SOCK_STREAM, stream, CTLFLAG_RW | CTLFLAG_LOCKED,
139 NULL, "SOCK_STREAM");
140 SYSCTL_NODE(_net_local, SOCK_DGRAM, dgram, CTLFLAG_RW | CTLFLAG_LOCKED,
141 NULL, "SOCK_DGRAM");
142