X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..89b3af67bb32e691275bf6fa803d1834b2284115:/bsd/netinet/raw_ip.c

diff --git a/bsd/netinet/raw_ip.c b/bsd/netinet/raw_ip.c
index 5332bf708..6219b9250 100644
--- a/bsd/netinet/raw_ip.c
+++ b/bsd/netinet/raw_ip.c
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1982, 1986, 1988, 1993
@@ -144,7 +150,6 @@ rip_init()
 	 * allocate lock group attribute and group for udp pcb mutexes
 	 */
 	pcbinfo->mtx_grp_attr = lck_grp_attr_alloc_init();
-	lck_grp_attr_setdefault(pcbinfo->mtx_grp_attr);
 
 	pcbinfo->mtx_grp = lck_grp_alloc_init("ripcb", pcbinfo->mtx_grp_attr);
 		
@@ -152,7 +157,6 @@ rip_init()
 	 * allocate the lock attribute for udp pcb mutexes
 	 */
 	pcbinfo->mtx_attr = lck_attr_alloc_init();
-	lck_attr_setdefault(pcbinfo->mtx_attr);
 
 	if ((pcbinfo->mtx = lck_rw_alloc_init(pcbinfo->mtx_grp, pcbinfo->mtx_attr)) == NULL)
 		return;	/* pretty much dead if this fails... */
@@ -736,22 +740,25 @@ rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
 	return rip_output(m, so, dst);
 }
 
+/* note: rip_unlock is called from different protos  instead of the generic socket_unlock,
+ * it will handle the socket dealloc on last reference 
+ * */
 int
 rip_unlock(struct socket *so, int refcount, int debug)
 {
 	int lr_saved;
 	struct inpcb *inp = sotoinpcb(so);
-#ifdef __ppc__
-	if (debug == 0) {
-		__asm__ volatile("mflr %0" : "=r" (lr_saved));
-	}
+
+	if (debug == 0) 
+		lr_saved = (unsigned int) __builtin_return_address(0);
 	else lr_saved = debug;
-#endif
+
 	if (refcount) {
 		if (so->so_usecount <= 0)
 			panic("rip_unlock: bad refoucnt so=%x val=%x\n", so, so->so_usecount);
 		so->so_usecount--;
 		if (so->so_usecount == 0 && (inp->inp_wantcnt == WNT_STOPUSING)) {
+			/* cleanup after last reference */
 			lck_mtx_unlock(so->so_proto->pr_domain->dom_mtx);
 			lck_rw_lock_exclusive(ripcbinfo.mtx);
 			in_pcbdispose(inp);
@@ -759,6 +766,8 @@ rip_unlock(struct socket *so, int refcount, int debug)
 			return(0);
 		}
 	}
+	so->unlock_lr[so->next_unlock_lr] = (u_int *)lr_saved;
+	so->next_unlock_lr = (so->next_unlock_lr+1) % SO_LCKDBG_MAX;
 	lck_mtx_unlock(so->so_proto->pr_domain->dom_mtx);
 	return(0);
 }