xnu-2422.1.72.tar.gz

[apple/xnu.git] / bsd / netinet / mp_proto.c

diff --git a/bsd/netinet/mp_proto.c b/bsd/netinet/mp_proto.c
new file mode 100644 (file)
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+++ b/bsd/netinet/mp_proto.c
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+/*
+ * Copyright (c) 2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/domain.h>
+#include <sys/protosw.h>
+#include <sys/mcache.h>
+
+#include <kern/locks.h>
+
+#include <netinet/in.h>
+#if MPTCP
+#include <netinet/mptcp_var.h>
+#endif /* MPTCP */
+
+extern struct domain mpdomain_s;
+static struct domain *mpdomain = NULL;
+
+static void mp_dinit(struct domain *);
+lck_mtx_t *mp_domain_mutex;
+
+static struct protosw mpsw[] = {
+#if MPTCP
+{
+       .pr_type =              SOCK_STREAM,
+       .pr_protocol =          IPPROTO_TCP,
+       .pr_flags =             PR_CONNREQUIRED|PR_MULTICONN|PR_EVCONNINFO|
+                               PR_WANTRCVD|PR_PCBLOCK|PR_PROTOLOCK,
+       .pr_ctloutput =         mptcp_ctloutput,
+       .pr_init =              mptcp_init,
+       .pr_usrreqs =           &mptcp_usrreqs,
+       .pr_lock =              mptcp_lock,
+       .pr_unlock =            mptcp_unlock,
+       .pr_getlock =           mptcp_getlock,
+},
+#endif /* MPTCP */
+};
+
+static int mp_proto_count = (sizeof (mpsw) / sizeof (struct protosw));
+
+struct domain mpdomain_s = {
+       .dom_family =           PF_MULTIPATH,
+       .dom_flags =            DOM_REENTRANT,
+       .dom_name =             "multipath",
+       .dom_init =             mp_dinit,
+};
+
+/* Initialize the PF_MULTIPATH domain, and add in the pre-defined protos */
+void
+mp_dinit(struct domain *dp)
+{
+       struct protosw *pr;
+       int i;
+
+       VERIFY(!(dp->dom_flags & DOM_INITIALIZED));
+       VERIFY(mpdomain == NULL);
+
+       mpdomain = dp;
+
+       for (i = 0, pr = &mpsw[0]; i < mp_proto_count; i++, pr++)
+               net_add_proto(pr, dp, 1);
+
+       mp_domain_mutex = dp->dom_mtx;
+}