xnu-792.13.8.tar.gz

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

diff --git a/bsd/netinet/raw_ip.c b/bsd/netinet/raw_ip.c
index e7734c8a99984b722747eb1aa591a22ec8b700a6..175962478c618b86018a89b942fc0641b642652c 100644 (file)
--- a/bsd/netinet/raw_ip.c
+++ b/bsd/netinet/raw_ip.c
@@ -1,24 +1,31 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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
+ * 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
+ *
+ * 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_LICENSE_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /*
  * Copyright (c) 1982, 1986, 1988, 1993
@@ -145,7 +152,6 @@ 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);
                
@@ -153,7 +159,6 @@ 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... */
@@ -737,22 +742,25 @@ 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);
@@ -760,6 +768,8 @@ 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);
 }