summaryrefslogtreecommitdiffstats
path: root/content/browser/frame_host/debug_urls.cc
blob: 0b2ca863388b6892b69334d38972181ecfa64fb3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/frame_host/debug_urls.h"

#include <vector>

#include "base/command_line.h"
#include "base/debug/asan_invalid_access.h"
#include "base/debug/profiler.h"
#include "base/strings/utf_string_conversions.h"
#include "cc/base/switches.h"
#include "content/browser/gpu/gpu_process_host_ui_shim.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/url_constants.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "url/gurl.h"

#if defined(ENABLE_PLUGINS)
#include "content/browser/ppapi_plugin_process_host.h"
#endif

namespace content {

namespace {

// Define the Asan debug URLs.
const char kAsanCrashDomain[] = "crash";
const char kAsanHeapOverflow[] = "/browser-heap-overflow";
const char kAsanHeapUnderflow[] = "/browser-heap-underflow";
const char kAsanUseAfterFree[] = "/browser-use-after-free";
#if defined(SYZYASAN)
const char kAsanCorruptHeapBlock[] = "/browser-corrupt-heap-block";
const char kAsanCorruptHeap[] = "/browser-corrupt-heap";
#endif

void HandlePpapiFlashDebugURL(const GURL& url) {
#if defined(ENABLE_PLUGINS)
  bool crash = url == GURL(kChromeUIPpapiFlashCrashURL);

  std::vector<PpapiPluginProcessHost*> hosts;
  PpapiPluginProcessHost::FindByName(
      base::UTF8ToUTF16(kFlashPluginName), &hosts);
  for (std::vector<PpapiPluginProcessHost*>::iterator iter = hosts.begin();
       iter != hosts.end(); ++iter) {
    if (crash)
      (*iter)->Send(new PpapiMsg_Crash());
    else
      (*iter)->Send(new PpapiMsg_Hang());
  }
#endif
}

bool IsAsanDebugURL(const GURL& url) {
#if defined(SYZYASAN)
  if (!base::debug::IsBinaryInstrumented())
    return false;
#endif

  if (!(url.is_valid() && url.SchemeIs(kChromeUIScheme) &&
        url.DomainIs(kAsanCrashDomain, sizeof(kAsanCrashDomain) - 1) &&
        url.has_path())) {
    return false;
  }

  if (url.path() == kAsanHeapOverflow || url.path() == kAsanHeapUnderflow ||
      url.path() == kAsanUseAfterFree) {
    return true;
  }

#if defined(SYZYASAN)
  if (url.path() == kAsanCorruptHeapBlock || url.path() == kAsanCorruptHeap)
    return true;
#endif

  return false;
}

bool HandleAsanDebugURL(const GURL& url) {
#if defined(SYZYASAN)
  if (!base::debug::IsBinaryInstrumented())
    return false;

  if (url.path() == kAsanCorruptHeapBlock) {
    base::debug::AsanCorruptHeapBlock();
    return true;
  } else if (url.path() == kAsanCorruptHeap) {
    base::debug::AsanCorruptHeap();
    return true;
  }
#endif

#if defined(ADDRESS_SANITIZER) || defined(SYZYASAN)
  if (url.path() == kAsanHeapOverflow) {
    base::debug::AsanHeapOverflow();
  } else if (url.path() == kAsanHeapUnderflow) {
    base::debug::AsanHeapUnderflow();
  } else if (url.path() == kAsanUseAfterFree) {
    base::debug::AsanHeapUseAfterFree();
  } else {
    return false;
  }
#endif

  return true;
}


}  // namespace

bool HandleDebugURL(const GURL& url, ui::PageTransition transition) {
  // Ensure that the user explicitly navigated to this URL, unless
  // kEnableGpuBenchmarking is enabled by Telemetry.
  bool is_telemetry_navigation =
      base::CommandLine::ForCurrentProcess()->HasSwitch(
          cc::switches::kEnableGpuBenchmarking) &&
      (transition & ui::PAGE_TRANSITION_TYPED);

  if (!(transition & ui::PAGE_TRANSITION_FROM_ADDRESS_BAR) &&
      !is_telemetry_navigation)
    return false;

  if (IsAsanDebugURL(url))
    return HandleAsanDebugURL(url);

  if (url == GURL(kChromeUIBrowserCrashURL)) {
    // Induce an intentional crash in the browser process.
    CHECK(false);
    return true;
  }

  if (url == GURL(kChromeUIGpuCleanURL)) {
    GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
    if (shim)
      shim->SimulateRemoveAllContext();
    return true;
  }

  if (url == GURL(kChromeUIGpuCrashURL)) {
    GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
    if (shim)
      shim->SimulateCrash();
    return true;
  }

  if (url == GURL(kChromeUIGpuHangURL)) {
    GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
    if (shim)
      shim->SimulateHang();
    return true;
  }

  if (url == GURL(kChromeUIPpapiFlashCrashURL) ||
      url == GURL(kChromeUIPpapiFlashHangURL)) {
    BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                            base::Bind(&HandlePpapiFlashDebugURL, url));
    return true;
  }

  return false;
}

bool IsRendererDebugURL(const GURL& url) {
  if (!url.is_valid())
    return false;

  if (url.SchemeIs(url::kJavaScriptScheme))
    return true;

  return url == GURL(kChromeUICrashURL) ||
         url == GURL(kChromeUIDumpURL) ||
         url == GURL(kChromeUIKillURL) ||
         url == GURL(kChromeUIHangURL) ||
         url == GURL(kChromeUIShorthangURL);
}

}  // namespace content