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| author | rvargas@google.com <rvargas@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-04-14 21:12:00 +0000 |
|---|---|---|
| committer | rvargas@google.com <rvargas@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-04-14 21:12:00 +0000 |
| commit | 3c7641d99d56de8d40fd87450017d9d4772cc089 (patch) | |
| tree | 7307dc744b5b323de4ad568f2445e40d35b9e0ff /net/disk_cache/addr.cc | |
| parent | b1e68f69550ce2495df70141dff1eb65040bf549 (diff) | |
| download | chromium_src-3c7641d99d56de8d40fd87450017d9d4772cc089.zip chromium_src-3c7641d99d56de8d40fd87450017d9d4772cc089.tar.gz chromium_src-3c7641d99d56de8d40fd87450017d9d4772cc089.tar.bz2 | |
Disk Cache: Perform extra validations to data comming from
disk to detect obvious corruption going undetected.
BUG=77841
TEST=net_unittests
Review URL: http://codereview.chromium.org/6840035
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81646 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'net/disk_cache/addr.cc')
| -rw-r--r-- | net/disk_cache/addr.cc | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/net/disk_cache/addr.cc b/net/disk_cache/addr.cc index aa84c01..c4b95ef 100644 --- a/net/disk_cache/addr.cc +++ b/net/disk_cache/addr.cc @@ -1,4 +1,4 @@ -// Copyright (c) 2009 The Chromium Authors. All rights reserved. +// Copyright (c) 2011 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. @@ -26,4 +26,18 @@ bool Addr::SetFileNumber(int file_number) { return true; } +bool Addr::SanityCheck() const { + if (!is_initialized()) + return !value_; + + if (((value_ & kFileTypeMask) >> kFileTypeOffset) > 4) + return false; + + if (is_separate_file()) + return true; + + const uint32 kReservedBitsMask = 0x0c000000; + return !(value_ & kReservedBitsMask); +} + } // namespace disk_cache |