The Tor Browser: toolkit/crashreporter/google-breakpad/src/processor/exploitability.cc@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2010 Google Inc.

     2 // All rights reserved.

     3 //

     4 // Redistribution and use in source and binary forms, with or without

     5 // modification, are permitted provided that the following conditions are

     6 // met:

     7 //

     8 //     * Redistributions of source code must retain the above copyright

     9 // notice, this list of conditions and the following disclaimer.

    10 //     * Redistributions in binary form must reproduce the above

    11 // copyright notice, this list of conditions and the following disclaimer

    12 // in the documentation and/or other materials provided with the

    13 // distribution.

    14 //     * Neither the name of Google Inc. nor the names of its

    15 // contributors may be used to endorse or promote products derived from

    16 // this software without specific prior written permission.

    17 //

    18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

    22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30 // exploitability_engine.cc: Generic exploitability engine.

    31 //

    32 // See exploitable_engine.h for documentation.

    33 //

    34 // Author: Cris Neckar

    37 #include <cassert>

    39 #include "common/scoped_ptr.h"

    40 #include "google_breakpad/processor/exploitability.h"

    41 #include "google_breakpad/processor/minidump.h"

    42 #include "google_breakpad/processor/process_state.h"

    43 #include "processor/exploitability_win.h"

    44 #include "processor/logging.h"

    46 namespace google_breakpad {

    48 Exploitability::Exploitability(Minidump *dump,

    49                                ProcessState *process_state)

    50     : dump_(dump),

    51       process_state_(process_state) {}

    53 ExploitabilityRating Exploitability::CheckExploitability() {

    54   return CheckPlatformExploitability();

    55 }

    57 Exploitability *Exploitability::ExploitabilityForPlatform(

    58     Minidump *dump,

    59     ProcessState *process_state) {

    60   Exploitability *platform_exploitability = NULL;

    61   MinidumpSystemInfo *minidump_system_info = dump->GetSystemInfo();

    62   if (!minidump_system_info)

    63     return NULL;

    65   const MDRawSystemInfo *raw_system_info =

    66     minidump_system_info->system_info();

    67   if (!raw_system_info)

    68     return NULL;

    70   switch (raw_system_info->platform_id) {

    71     case MD_OS_WIN32_NT:

    72     case MD_OS_WIN32_WINDOWS: {

    73       platform_exploitability = new ExploitabilityWin(dump,

    74                                                       process_state);

    75       break;

    76     }

    77     case MD_OS_MAC_OS_X:

    78     case MD_OS_IOS:

    79     case MD_OS_LINUX:

    80     case MD_OS_UNIX:

    81     case MD_OS_SOLARIS:

    82     case MD_OS_ANDROID:

    83     default: {

    84       platform_exploitability = NULL;

    85       break;

    86     }

    87   }

    89   BPLOG_IF(ERROR, !platform_exploitability) <<

    90     "No Exploitability module for platform: " <<

    91     process_state->system_info()->os;

    92   return platform_exploitability;

    93 }

    95 bool Exploitability::AddressIsAscii(uint64_t address) {

    96   for (int i = 0; i < 8; i++) {

    97     uint8_t byte = (address >> (8*i)) & 0xff;

    98     if ((byte >= ' ' && byte <= '~') || byte == 0)

    99       continue;

   100     return false;

   101   }

   102   return true;

   103 }

   105 }  // namespace google_breakpad

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