X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/ff6e181ae92fc6f1e89841290f461d1f2f9badd9..cc8bc92ae4a8e9f1a1ab61bf83d34ad8150b3405:/bsd/net/raw_cb.c

diff --git a/bsd/net/raw_cb.c b/bsd/net/raw_cb.c
index 4196965ed..2aaaeeb4b 100644
--- a/bsd/net/raw_cb.c
+++ b/bsd/net/raw_cb.c
@@ -1,14 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -18,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1980, 1986, 1993
@@ -76,8 +81,8 @@
 
 struct rawcb_list_head rawcb_list;
 
-static u_long	raw_sendspace = RAWSNDQ;
-static u_long	raw_recvspace = RAWRCVQ;
+static uint32_t	raw_sendspace = RAWSNDQ;
+static uint32_t	raw_recvspace = RAWRCVQ;
 extern lck_mtx_t 	*raw_mtx;	/*### global raw cb mutex for now */
 
 /*
@@ -85,11 +90,9 @@ extern lck_mtx_t 	*raw_mtx;	/*### global raw cb mutex for now */
  * of buffer space for the socket.
  */
 int
-raw_attach(so, proto)
-	register struct socket *so;
-	int proto;
+raw_attach(struct socket *so, int proto)
 {
-	register struct rawcb *rp = sotorawcb(so);
+	struct rawcb *rp = sotorawcb(so);
 	int error;
 
 	/*
@@ -103,7 +106,7 @@ raw_attach(so, proto)
 	if (error)
 		return (error);
 	rp->rcb_socket = so;
-	rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family;
+	rp->rcb_proto.sp_family = SOCK_DOM(so);
 	rp->rcb_proto.sp_protocol = proto;
 	lck_mtx_lock(raw_mtx);
 	LIST_INSERT_HEAD(&rawcb_list, rp, list);
@@ -116,8 +119,7 @@ raw_attach(so, proto)
  * socket resources.
  */
 void
-raw_detach(rp)
-	register struct rawcb *rp;
+raw_detach(struct rawcb *rp)
 {
 	struct socket *so = rp->rcb_socket;
 
@@ -144,16 +146,21 @@ raw_detach(rp)
  * Disconnect and possibly release resources.
  */
 void
-raw_disconnect(rp)
-	struct rawcb *rp;
+raw_disconnect(struct rawcb *rp)
 {
+	struct socket *so = rp->rcb_socket;
 
 #ifdef notdef
 	if (rp->rcb_faddr)
 		m_freem(dtom(rp->rcb_faddr));
 	rp->rcb_faddr = 0;
 #endif
-	if (rp->rcb_socket->so_state & SS_NOFDREF)
+	/*
+	 * A multipath subflow socket would have its SS_NOFDREF set by default,
+	 * so check for SOF_MP_SUBFLOW socket flag before detaching the PCB;
+	 * when the socket is closed for real, SOF_MP_SUBFLOW would be cleared.
+	 */
+	if (!(so->so_flags & SOF_MP_SUBFLOW) && (so->so_state & SS_NOFDREF))
 		raw_detach(rp);
 }
 
@@ -161,17 +168,17 @@ raw_disconnect(rp)
 #include <sys/mbuf.h>
 
 int
-raw_bind(so, nam)
-	register struct socket *so;
-	struct mbuf *nam;
+raw_bind(struct socket *so, struct mbuf *nam)
 {
 	struct sockaddr *addr = mtod(nam, struct sockaddr *);
-	register struct rawcb *rp;
+	struct rawcb *rp;
 
 	if (ifnet == 0)
 		return (EADDRNOTAVAIL);
 	rp = sotorawcb(so);
 	nam = m_copym(nam, 0, M_COPYALL, M_WAITOK);
+	if (nam == NULL)
+		return ENOBUFS;
 	rp->rcb_laddr = mtod(nam, struct sockaddr *);
 	return (0);
 }