1 /*
2 * Copyright (c) 2012-2017 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
29 #include <sys/param.h>
30 #include <sys/kernel.h>
31 #include <sys/socket.h>
32 #include <sys/domain.h>
33 #include <sys/protosw.h>
34 #include <sys/mcache.h>
35
36 #include <kern/locks.h>
37
38 #include <netinet/in.h>
39 #include <netinet/mptcp_var.h>
40
41 extern struct domain mpdomain_s;
42
43 static void mp_dinit(struct domain *);
44
45 static struct protosw mpsw = {
46 .pr_type = SOCK_STREAM,
47 .pr_protocol = IPPROTO_TCP,
48 .pr_flags = PR_CONNREQUIRED | PR_MULTICONN | PR_EVCONNINFO |
49 PR_WANTRCVD | PR_PCBLOCK | PR_PROTOLOCK |
50 PR_PRECONN_WRITE | PR_DATA_IDEMPOTENT,
51 .pr_ctloutput = mptcp_ctloutput,
52 .pr_init = mptcp_init,
53 .pr_usrreqs = &mptcp_usrreqs,
54 .pr_lock = mptcp_lock,
55 .pr_unlock = mptcp_unlock,
56 .pr_getlock = mptcp_getlock,
57 };
58
59 struct domain mpdomain_s = {
60 .dom_family = PF_MULTIPATH,
61 .dom_flags = DOM_REENTRANT,
62 .dom_name = "multipath",
63 .dom_init = mp_dinit,
64 };
65
66 /* Initialize the PF_MULTIPATH domain, and add in the pre-defined protos */
67 void
mp_dinit(struct domain * dp)68 mp_dinit(struct domain *dp)
69 {
70 VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
71
72 net_add_proto(&mpsw, dp, 1);
73 }
74