service_runtime/nacl_desc_effector_cleanup.c

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /* @file
  33  *
  34  * Implementation of effector subclass used only for service runtime's
  35  * NaClAppDtor address space tear down.
  36  */
  37
  38 #include "native_client/service_runtime/nacl_desc_effector_cleanup.h"
  39 #include "native_client/service_runtime/nacl_log.h"
  40
  41 static struct NaClDescEffectorVtbl NaClDescEffectorCleanupVtbl;  /* fwd */
  42
  43 int NaClDescEffectorCleanupCtor(struct NaClDescEffectorCleanup *self)
  44 {
  45   self->base.vtbl = &NaClDescEffectorCleanupVtbl;
  46   return 1;
  47 }
  48
  49 static void NaClDescEffCleanDtor(struct NaClDescEffector *vself)
  50 {
  51   return;
  52 }
  53
  54 static int NaClDescEffCleanReturnCreatedDesc(struct NaClDescEffector *vself,
  55                                              struct NaClDesc         *ndp)
  56 {
  57   NaClLog(LOG_FATAL, "Cleanup effector's ReturnCreatedDesc called\n");
  58   return 0;
  59 }
  60
  61 static void NaClDescEffCleanUpdateAddrMap(struct NaClDescEffector *vself,
  62                                           uintptr_t               sysaddr,
  63                                           size_t                  nbytes,
  64                                           int                     sysprot,
  65                                           struct NaClDesc         *backing_desc,
  66                                           size_t                  backing_bytes,
  67                                           off_t                   offset_bytes,
  68                                           int                     delete_mem)
  69 {
  70   return;
  71 }
  72
  73 static int NaClDescEffCleanUnmapMemory(struct NaClDescEffector  *vself,
  74                                        uintptr_t                sysaddr,
  75                                        size_t                   nbytes)
  76 {
  77   NaClLog(LOG_FATAL, "Cleanup effector's UnmapMemory called\n");
  78   return 0;
  79 }
  80
  81 static int NaClDescEffCleanMapAnonMem(struct NaClDescEffector *vself,
  82                                       uintptr_t               sysaddr,
  83                                       size_t                  nbytes,
  84                                       int                     prot)
  85 {
  86   NaClLog(LOG_FATAL, "Cleanup effector's MapAnonMem called\n");
  87   return 0;
  88 }
  89
  90 static struct NaClDescImcBoundDesc *NaClDescEffCleanSourceSock(
  91     struct NaClDescEffector *vself)
  92 {
  93   NaClLog(LOG_FATAL, "Cleanup effector's SourceSock called\n");
  94   return 0;
  95 }
  96
  97 static struct NaClDescEffectorVtbl NaClDescEffectorCleanupVtbl = {
  98   NaClDescEffCleanDtor,
  99   NaClDescEffCleanReturnCreatedDesc,
 100   NaClDescEffCleanUpdateAddrMap,
 101   NaClDescEffCleanUnmapMemory,
 102   NaClDescEffCleanMapAnonMem,
 103   NaClDescEffCleanSourceSock,
 104 };