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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "sandbox/src/restricted_token.h"
#include "sandbox/src/restricted_token_utils.h"
#include "sandbox/tools/finder/finder.h"
DWORD Finder::ParseRegistry(HKEY key, ATL::CString print_name) {
DWORD index = 0;
DWORD name_size = 2048;
wchar_t buffer[2048] = {0};
// TODO(nsylvain): Don't hardcode 2048. Get the key len by calling the
// function.
LONG err_code = ::RegEnumKey(key, index, buffer, name_size);
while (ERROR_SUCCESS == err_code) {
ATL::CString name_complete = print_name + buffer + L"\\";
TestRegAccess(key, buffer, name_complete);
// Call the function recursively to parse all subkeys
HKEY key_to_parse;
err_code = ::RegOpenKeyEx(key, buffer, 0, KEY_ENUMERATE_SUB_KEYS,
&key_to_parse);
if (ERROR_SUCCESS == err_code) {
ParseRegistry(key_to_parse, name_complete);
::RegCloseKey(key_to_parse);
} else {
registry_stats_[BROKEN]++;
Output(REG_ERR, err_code, name_complete);
}
index++;
err_code = ::RegEnumKey(key, index, buffer, name_size);
}
if (ERROR_NO_MORE_ITEMS != err_code) {
registry_stats_[BROKEN]++;
Output(REG_ERR, err_code, print_name);
}
return ERROR_SUCCESS;
}
DWORD Finder::TestRegAccess(HKEY key, ATL::CString name,
ATL::CString print_name) {
Impersonater impersonate(token_handle_);
registry_stats_[PARSE]++;
HKEY key_res;
LONG err_code = 0;
if (access_type_ & kTestForAll) {
err_code = ::RegOpenKeyEx(key, name, 0, GENERIC_ALL, &key_res);
if (ERROR_SUCCESS == err_code) {
registry_stats_[ALL]++;
Output(REG, L"R/W", print_name);
::RegCloseKey(key_res);
return GENERIC_ALL;
} else if (err_code != ERROR_ACCESS_DENIED) {
Output(REG_ERR, err_code, print_name);
registry_stats_[BROKEN]++;
}
}
if (access_type_ & kTestForWrite) {
err_code = ::RegOpenKeyEx(key, name, 0, GENERIC_WRITE, &key_res);
if (ERROR_SUCCESS == err_code) {
registry_stats_[WRITE]++;
Output(REG, L"W", print_name);
::RegCloseKey(key_res);
return GENERIC_WRITE;
} else if (err_code != ERROR_ACCESS_DENIED) {
Output(REG_ERR, err_code, print_name);
registry_stats_[BROKEN]++;
}
}
if (access_type_ & kTestForRead) {
err_code = ::RegOpenKeyEx(key, name, 0, GENERIC_READ, &key_res);
if (ERROR_SUCCESS == err_code) {
registry_stats_[READ]++;
Output(REG, L"R", print_name);
::RegCloseKey(key_res);
return GENERIC_READ;
} else if (err_code != ERROR_ACCESS_DENIED) {
Output(REG_ERR, err_code, print_name);
registry_stats_[BROKEN]++;
}
}
return 0;
}
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