toolkit/crashreporter/google-breakpad/src/processor/exploitability.cc@b8a032363ba2 (annotated)
toolkit/crashreporter/google-breakpad/src/processor/exploitability.cc
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | // Copyright (c) 2010 Google Inc. |
| michael@0 | 2 | // All rights reserved. |
| michael@0 | 3 | // |
| michael@0 | 4 | // Redistribution and use in source and binary forms, with or without |
| michael@0 | 5 | // modification, are permitted provided that the following conditions are |
| michael@0 | 6 | // met: |
| michael@0 | 7 | // |
| michael@0 | 8 | // * Redistributions of source code must retain the above copyright |
| michael@0 | 9 | // notice, this list of conditions and the following disclaimer. |
| michael@0 | 10 | // * Redistributions in binary form must reproduce the above |
| michael@0 | 11 | // copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 12 | // in the documentation and/or other materials provided with the |
| michael@0 | 13 | // distribution. |
| michael@0 | 14 | // * Neither the name of Google Inc. nor the names of its |
| michael@0 | 15 | // contributors may be used to endorse or promote products derived from |
| michael@0 | 16 | // this software without specific prior written permission. |
| michael@0 | 17 | // |
| michael@0 | 18 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 19 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 20 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 21 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 22 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 23 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 24 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 25 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 28 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 29 | |
| michael@0 | 30 | // exploitability_engine.cc: Generic exploitability engine. |
| michael@0 | 31 | // |
| michael@0 | 32 | // See exploitable_engine.h for documentation. |
| michael@0 | 33 | // |
| michael@0 | 34 | // Author: Cris Neckar |
| michael@0 | 35 | |
| michael@0 | 36 | |
| michael@0 | 37 | #include <cassert> |
| michael@0 | 38 | |
| michael@0 | 39 | #include "common/scoped_ptr.h" |
| michael@0 | 40 | #include "google_breakpad/processor/exploitability.h" |
| michael@0 | 41 | #include "google_breakpad/processor/minidump.h" |
| michael@0 | 42 | #include "google_breakpad/processor/process_state.h" |
| michael@0 | 43 | #include "processor/exploitability_win.h" |
| michael@0 | 44 | #include "processor/logging.h" |
| michael@0 | 45 | |
| michael@0 | 46 | namespace google_breakpad { |
| michael@0 | 47 | |
| michael@0 | 48 | Exploitability::Exploitability(Minidump *dump, |
| michael@0 | 49 | ProcessState *process_state) |
| michael@0 | 50 | : dump_(dump), |
| michael@0 | 51 | process_state_(process_state) {} |
| michael@0 | 52 | |
| michael@0 | 53 | ExploitabilityRating Exploitability::CheckExploitability() { |
| michael@0 | 54 | return CheckPlatformExploitability(); |
| michael@0 | 55 | } |
| michael@0 | 56 | |
| michael@0 | 57 | Exploitability *Exploitability::ExploitabilityForPlatform( |
| michael@0 | 58 | Minidump *dump, |
| michael@0 | 59 | ProcessState *process_state) { |
| michael@0 | 60 | Exploitability *platform_exploitability = NULL; |
| michael@0 | 61 | MinidumpSystemInfo *minidump_system_info = dump->GetSystemInfo(); |
| michael@0 | 62 | if (!minidump_system_info) |
| michael@0 | 63 | return NULL; |
| michael@0 | 64 | |
| michael@0 | 65 | const MDRawSystemInfo *raw_system_info = |
| michael@0 | 66 | minidump_system_info->system_info(); |
| michael@0 | 67 | if (!raw_system_info) |
| michael@0 | 68 | return NULL; |
| michael@0 | 69 | |
| michael@0 | 70 | switch (raw_system_info->platform_id) { |
| michael@0 | 71 | case MD_OS_WIN32_NT: |
| michael@0 | 72 | case MD_OS_WIN32_WINDOWS: { |
| michael@0 | 73 | platform_exploitability = new ExploitabilityWin(dump, |
| michael@0 | 74 | process_state); |
| michael@0 | 75 | break; |
| michael@0 | 76 | } |
| michael@0 | 77 | case MD_OS_MAC_OS_X: |
| michael@0 | 78 | case MD_OS_IOS: |
| michael@0 | 79 | case MD_OS_LINUX: |
| michael@0 | 80 | case MD_OS_UNIX: |
| michael@0 | 81 | case MD_OS_SOLARIS: |
| michael@0 | 82 | case MD_OS_ANDROID: |
| michael@0 | 83 | default: { |
| michael@0 | 84 | platform_exploitability = NULL; |
| michael@0 | 85 | break; |
| michael@0 | 86 | } |
| michael@0 | 87 | } |
| michael@0 | 88 | |
| michael@0 | 89 | BPLOG_IF(ERROR, !platform_exploitability) << |
| michael@0 | 90 | "No Exploitability module for platform: " << |
| michael@0 | 91 | process_state->system_info()->os; |
| michael@0 | 92 | return platform_exploitability; |
| michael@0 | 93 | } |
| michael@0 | 94 | |
| michael@0 | 95 | bool Exploitability::AddressIsAscii(uint64_t address) { |
| michael@0 | 96 | for (int i = 0; i < 8; i++) { |
| michael@0 | 97 | uint8_t byte = (address >> (8*i)) & 0xff; |
| michael@0 | 98 | if ((byte >= ' ' && byte <= '~') || byte == 0) |
| michael@0 | 99 | continue; |
| michael@0 | 100 | return false; |
| michael@0 | 101 | } |
| michael@0 | 102 | return true; |
| michael@0 | 103 | } |
| michael@0 | 104 | |
| michael@0 | 105 | } // namespace google_breakpad |
| michael@0 | 106 |
