xnu-792.17.14.tar.gz

[apple/xnu.git] / bsd / netat / at_proto.c

diff --git a/bsd/netat/at_proto.c b/bsd/netat/at_proto.c
index 016a603e2ae14b14a79ce90b06070e0c24e2ec05..de59959dec0a150c549190edfe2fec50ff89a467 100644 (file)
--- a/bsd/netat/at_proto.c
+++ b/bsd/netat/at_proto.c
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, 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. 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
@@ -20,7 +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) 1998 Apple Computer, Inc. 
@@ -39,6 +42,7 @@
 #include <sys/protosw.h>
 #include <sys/domain.h>
 #include <sys/mbuf.h>
+#include <kern/locks.h>
 
 #include <sys/sysctl.h>
 
@@ -48,7 +52,6 @@
 #include <netat/at_var.h>
 #include <netat/ddp.h>
 
-struct domain atalkdomain;
 
 extern int     ddp_pru_abort(struct socket *so);
 
@@ -74,6 +77,7 @@ extern int    ddp_pru_send(struct socket *so, int flags, struct mbuf *m,
 extern int     ddp_pru_shutdown(struct socket *so);
 extern int     ddp_pru_sockaddr(struct socket *so, 
                                 struct sockaddr **nam);
+void atalk_dominit();
 
 /*
  * Dummy usrreqs struct created by Ted for FreeBSD 3.x integration. 
@@ -84,24 +88,64 @@ struct pr_usrreqs ddp_usrreqs = {
        ddp_pru_connect, pru_connect2_notsupp, ddp_pru_control, ddp_pru_detach,
        ddp_pru_disconnect, pru_listen_notsupp, ddp_pru_peeraddr, pru_rcvd_notsupp,
        pru_rcvoob_notsupp, ddp_pru_send, pru_sense_null, ddp_pru_shutdown,
-       ddp_pru_sockaddr, sosend, soreceive, sopoll
+       ddp_pru_sockaddr, sosend, soreceive, pru_sopoll_notsupp
 };
 
+struct domain atalkdomain;
 struct protosw atalksw[] = {
   { SOCK_RAW,  &atalkdomain,   /*protocol*/ 0, PR_ATOMIC|PR_ADDR,
     /*input*/ 0, /*output*/ 0, /*clinput*/ 0, ddp_ctloutput,
     /*ousrreq*/ 0, 
     ddp_init, /*fastto*/ 0, /*slowto*/ 0, /*drain*/ 0, 
-    /*sysctl*/ 0, &ddp_usrreqs
+    /*sysctl*/ 0, &ddp_usrreqs,
+       0, 0, 0
   }
 };
 
 struct domain atalkdomain =
-{ AF_APPLETALK, "appletalk", 0, 0, 0, 
+{ AF_APPLETALK, "appletalk", atalk_dominit, 0, 0, 
   atalksw, 0,
   0, 0, 0,
   DDP_X_HDR_SIZE, 0
 };
 
+struct domain * atalkdom = &atalkdomain;
+lck_mtx_t  *atalk_mutex = NULL;
+
 SYSCTL_NODE(_net, PF_APPLETALK, appletalk, CTLFLAG_RW, 0, "AppleTalk Family");
 
+void
+atalk_dominit()
+{
+       atalk_mutex = atalkdom->dom_mtx;
+}
+
+void
+atalk_lock()
+{
+       int error = 0, lr, lr_saved;
+#ifdef __ppc__
+       __asm__ volatile("mflr %0" : "=r" (lr));
+       lr_saved = lr;
+#endif 
+       lck_mtx_assert(atalkdom->dom_mtx, LCK_MTX_ASSERT_NOTOWNED);
+       lck_mtx_lock(atalkdom->dom_mtx);
+}
+       
+void
+atalk_unlock()
+{
+       int error = 0, lr, lr_saved;
+#ifdef __ppc__
+       __asm__ volatile("mflr %0" : "=r" (lr));
+       lr_saved = lr;
+#endif 
+       lck_mtx_assert(atalkdom->dom_mtx, LCK_MTX_ASSERT_OWNED);
+       lck_mtx_unlock(atalkdom->dom_mtx);
+
+}
+       
+
+
+
+