xnu-517.9.5.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 f524dd41ac98007055802cfbab299c45237e0b9b..60f2ce01bc2d8743689ad7b8c8c8a3985290769a 100644 (file)
--- a/bsd/netinet/raw_ip.c
+++ b/bsd/netinet/raw_ip.c
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * 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. 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
+ * This 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.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -300,6 +297,23 @@ rip_output(m, so, dst)
                          inp->inp_moptions));
 }
 
+int
+load_ipfw()
+{
+       kern_return_t   err;
+       
+       /* Load the kext by the identifier */
+       err = kmod_load_extension("com.apple.nke.IPFirewall");
+       if (err) return err;
+       
+       if (ip_fw_ctl_ptr == NULL) {
+               /* Wait for the kext to finish loading */
+               err = tsleep(&ip_fw_ctl_ptr, PWAIT | PCATCH, "load_ipfw_kext", 5 * 60 /* 5 seconds */);
+       }
+       
+       return err == 0 && ip_fw_ctl_ptr == NULL ? -1 : err;
+}
+
 /*
  * Raw IP socket option processing.
  */
@@ -334,9 +348,11 @@ rip_ctloutput(so, sopt)
                case IP_OLD_FW_ADD:
                case IP_OLD_FW_GET:
                        if (ip_fw_ctl_ptr == 0)
-                               error = ENOPROTOOPT;
-                       else
+                               error = load_ipfw();
+                       if (ip_fw_ctl_ptr && error == 0)
                                error = ip_fw_ctl_ptr(sopt);
+                       else
+                               error = ENOPROTOOPT;
                        break;
 
 #if DUMMYNET
@@ -401,9 +417,11 @@ rip_ctloutput(so, sopt)
                case IP_OLD_FW_ZERO:
                case IP_OLD_FW_RESETLOG:
                        if (ip_fw_ctl_ptr == 0)
-                               error = ENOPROTOOPT;
-                       else
+                               error = load_ipfw();
+                       if (ip_fw_ctl_ptr && error == 0)
                                error = ip_fw_ctl_ptr(sopt);
+                       else
+                               error = ENOPROTOOPT;
                        break;
 
 #if DUMMYNET