/thirdparty/breakpad/processor/exploitability.cc

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 29
 30// exploitability_engine.cc: Generic exploitability engine.
 31//
 32// See exploitable_engine.h for documentation.
 33//
 34// Author: Cris Neckar
 35
 36
 37#include <cassert>
 38
 39#include "google_breakpad/processor/exploitability.h"
 40#include "google_breakpad/processor/minidump.h"
 41#include "google_breakpad/processor/process_state.h"
 42#include "processor/exploitability_win.h"
 43#include "processor/logging.h"
 44#include "processor/scoped_ptr.h"
 45
 46namespace google_breakpad {
 47
 48Exploitability::Exploitability(Minidump *dump,
 49                               ProcessState *process_state)
 50    : dump_(dump),
 51      process_state_(process_state) {}
 52
 53ExploitabilityRating Exploitability::CheckExploitability() {
 54  return CheckPlatformExploitability();
 55}
 56
 57Exploitability *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;
 64
 65  const MDRawSystemInfo *raw_system_info =
 66    minidump_system_info->system_info();
 67  if (!raw_system_info)
 68    return NULL;
 69
 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    default: {
 83      platform_exploitability = NULL;
 84      break;
 85    }
 86  }
 87
 88  BPLOG_IF(ERROR, !platform_exploitability) <<
 89    "No Exploitability module for platform: " <<
 90    process_state->system_info()->os;
 91  return platform_exploitability;
 92}
 93
 94bool Exploitability::AddressIsAscii(u_int64_t address) {
 95  for (int i = 0; i < 8; i++) {
 96    u_int8_t byte = (address >> (8*i)) & 0xff;
 97    if ((byte >= ' ' && byte <= '~') || byte == 0)
 98      continue;
 99    return false;
100  }
101  return true;
102}
103
104}  // namespace google_breakpad
105